1 /* Renesas RX specific support for 32-bit ELF.
2 Copyright (C) 2008-2014 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 #include "bfd_stdint.h"
26 #include "libiberty.h"
29 #define RX_OPCODE_BIG_ENDIAN 0
31 /* This is a meta-target that's used only with objcopy, to avoid the
32 endian-swap we would otherwise get. We check for this in
34 const bfd_target rx_elf32_be_ns_vec;
35 const bfd_target rx_elf32_be_vec;
38 char * rx_get_reloc (long);
39 void rx_dump_symtab (bfd *, void *, void *);
42 #define RXREL(n,sz,bit,shift,complain,pcrel) \
43 HOWTO (R_RX_##n, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
44 bfd_elf_generic_reloc, "R_RX_" #n, FALSE, 0, ~0, FALSE)
46 /* Note that the relocations around 0x7f are internal to this file;
47 feel free to move them as needed to avoid conflicts with published
48 relocation numbers. */
50 static reloc_howto_type rx_elf_howto_table [] =
52 RXREL (NONE, 0, 0, 0, dont, FALSE),
53 RXREL (DIR32, 2, 32, 0, signed, FALSE),
54 RXREL (DIR24S, 2, 24, 0, signed, FALSE),
55 RXREL (DIR16, 1, 16, 0, dont, FALSE),
56 RXREL (DIR16U, 1, 16, 0, unsigned, FALSE),
57 RXREL (DIR16S, 1, 16, 0, signed, FALSE),
58 RXREL (DIR8, 0, 8, 0, dont, FALSE),
59 RXREL (DIR8U, 0, 8, 0, unsigned, FALSE),
60 RXREL (DIR8S, 0, 8, 0, signed, FALSE),
61 RXREL (DIR24S_PCREL, 2, 24, 0, signed, TRUE),
62 RXREL (DIR16S_PCREL, 1, 16, 0, signed, TRUE),
63 RXREL (DIR8S_PCREL, 0, 8, 0, signed, TRUE),
64 RXREL (DIR16UL, 1, 16, 2, unsigned, FALSE),
65 RXREL (DIR16UW, 1, 16, 1, unsigned, FALSE),
66 RXREL (DIR8UL, 0, 8, 2, unsigned, FALSE),
67 RXREL (DIR8UW, 0, 8, 1, unsigned, FALSE),
68 RXREL (DIR32_REV, 1, 16, 0, dont, FALSE),
69 RXREL (DIR16_REV, 1, 16, 0, dont, FALSE),
70 RXREL (DIR3U_PCREL, 0, 3, 0, dont, TRUE),
86 RXREL (RH_3_PCREL, 0, 3, 0, signed, TRUE),
87 RXREL (RH_16_OP, 1, 16, 0, signed, FALSE),
88 RXREL (RH_24_OP, 2, 24, 0, signed, FALSE),
89 RXREL (RH_32_OP, 2, 32, 0, signed, FALSE),
90 RXREL (RH_24_UNS, 2, 24, 0, unsigned, FALSE),
91 RXREL (RH_8_NEG, 0, 8, 0, signed, FALSE),
92 RXREL (RH_16_NEG, 1, 16, 0, signed, FALSE),
93 RXREL (RH_24_NEG, 2, 24, 0, signed, FALSE),
94 RXREL (RH_32_NEG, 2, 32, 0, signed, FALSE),
95 RXREL (RH_DIFF, 2, 32, 0, signed, FALSE),
96 RXREL (RH_GPRELB, 1, 16, 0, unsigned, FALSE),
97 RXREL (RH_GPRELW, 1, 16, 0, unsigned, FALSE),
98 RXREL (RH_GPRELL, 1, 16, 0, unsigned, FALSE),
99 RXREL (RH_RELAX, 0, 0, 0, dont, FALSE),
121 RXREL (ABS32, 2, 32, 0, dont, FALSE),
122 RXREL (ABS24S, 2, 24, 0, signed, FALSE),
123 RXREL (ABS16, 1, 16, 0, dont, FALSE),
124 RXREL (ABS16U, 1, 16, 0, unsigned, FALSE),
125 RXREL (ABS16S, 1, 16, 0, signed, FALSE),
126 RXREL (ABS8, 0, 8, 0, dont, FALSE),
127 RXREL (ABS8U, 0, 8, 0, unsigned, FALSE),
128 RXREL (ABS8S, 0, 8, 0, signed, FALSE),
129 RXREL (ABS24S_PCREL, 2, 24, 0, signed, TRUE),
130 RXREL (ABS16S_PCREL, 1, 16, 0, signed, TRUE),
131 RXREL (ABS8S_PCREL, 0, 8, 0, signed, TRUE),
132 RXREL (ABS16UL, 1, 16, 0, unsigned, FALSE),
133 RXREL (ABS16UW, 1, 16, 0, unsigned, FALSE),
134 RXREL (ABS8UL, 0, 8, 0, unsigned, FALSE),
135 RXREL (ABS8UW, 0, 8, 0, unsigned, FALSE),
136 RXREL (ABS32_REV, 2, 32, 0, dont, FALSE),
137 RXREL (ABS16_REV, 1, 16, 0, dont, FALSE),
139 #define STACK_REL_P(x) ((x) <= R_RX_ABS16_REV && (x) >= R_RX_ABS32)
180 /* These are internal. */
181 /* A 5-bit unsigned displacement to a B/W/L address, at bit position 8/12. */
182 /* ---- ---- 4--- 3210. */
183 #define R_RX_RH_ABS5p8B 0x78
184 RXREL (RH_ABS5p8B, 0, 0, 0, dont, FALSE),
185 #define R_RX_RH_ABS5p8W 0x79
186 RXREL (RH_ABS5p8W, 0, 0, 0, dont, FALSE),
187 #define R_RX_RH_ABS5p8L 0x7a
188 RXREL (RH_ABS5p8L, 0, 0, 0, dont, FALSE),
189 /* A 5-bit unsigned displacement to a B/W/L address, at bit position 5/12. */
190 /* ---- -432 1--- 0---. */
191 #define R_RX_RH_ABS5p5B 0x7b
192 RXREL (RH_ABS5p5B, 0, 0, 0, dont, FALSE),
193 #define R_RX_RH_ABS5p5W 0x7c
194 RXREL (RH_ABS5p5W, 0, 0, 0, dont, FALSE),
195 #define R_RX_RH_ABS5p5L 0x7d
196 RXREL (RH_ABS5p5L, 0, 0, 0, dont, FALSE),
197 /* A 4-bit unsigned immediate at bit position 8. */
198 #define R_RX_RH_UIMM4p8 0x7e
199 RXREL (RH_UIMM4p8, 0, 0, 0, dont, FALSE),
200 /* A 4-bit negative unsigned immediate at bit position 8. */
201 #define R_RX_RH_UNEG4p8 0x7f
202 RXREL (RH_UNEG4p8, 0, 0, 0, dont, FALSE),
203 /* End of internal relocs. */
205 RXREL (SYM, 2, 32, 0, dont, FALSE),
206 RXREL (OPneg, 2, 32, 0, dont, FALSE),
207 RXREL (OPadd, 2, 32, 0, dont, FALSE),
208 RXREL (OPsub, 2, 32, 0, dont, FALSE),
209 RXREL (OPmul, 2, 32, 0, dont, FALSE),
210 RXREL (OPdiv, 2, 32, 0, dont, FALSE),
211 RXREL (OPshla, 2, 32, 0, dont, FALSE),
212 RXREL (OPshra, 2, 32, 0, dont, FALSE),
213 RXREL (OPsctsize, 2, 32, 0, dont, FALSE),
214 RXREL (OPscttop, 2, 32, 0, dont, FALSE),
215 RXREL (OPand, 2, 32, 0, dont, FALSE),
216 RXREL (OPor, 2, 32, 0, dont, FALSE),
217 RXREL (OPxor, 2, 32, 0, dont, FALSE),
218 RXREL (OPnot, 2, 32, 0, dont, FALSE),
219 RXREL (OPmod, 2, 32, 0, dont, FALSE),
220 RXREL (OPromtop, 2, 32, 0, dont, FALSE),
221 RXREL (OPramtop, 2, 32, 0, dont, FALSE)
224 /* Map BFD reloc types to RX ELF reloc types. */
228 bfd_reloc_code_real_type bfd_reloc_val;
229 unsigned int rx_reloc_val;
232 static const struct rx_reloc_map rx_reloc_map [] =
234 { BFD_RELOC_NONE, R_RX_NONE },
235 { BFD_RELOC_8, R_RX_DIR8S },
236 { BFD_RELOC_16, R_RX_DIR16S },
237 { BFD_RELOC_24, R_RX_DIR24S },
238 { BFD_RELOC_32, R_RX_DIR32 },
239 { BFD_RELOC_RX_16_OP, R_RX_DIR16 },
240 { BFD_RELOC_RX_DIR3U_PCREL, R_RX_DIR3U_PCREL },
241 { BFD_RELOC_8_PCREL, R_RX_DIR8S_PCREL },
242 { BFD_RELOC_16_PCREL, R_RX_DIR16S_PCREL },
243 { BFD_RELOC_24_PCREL, R_RX_DIR24S_PCREL },
244 { BFD_RELOC_RX_8U, R_RX_DIR8U },
245 { BFD_RELOC_RX_16U, R_RX_DIR16U },
246 { BFD_RELOC_RX_24U, R_RX_RH_24_UNS },
247 { BFD_RELOC_RX_NEG8, R_RX_RH_8_NEG },
248 { BFD_RELOC_RX_NEG16, R_RX_RH_16_NEG },
249 { BFD_RELOC_RX_NEG24, R_RX_RH_24_NEG },
250 { BFD_RELOC_RX_NEG32, R_RX_RH_32_NEG },
251 { BFD_RELOC_RX_DIFF, R_RX_RH_DIFF },
252 { BFD_RELOC_RX_GPRELB, R_RX_RH_GPRELB },
253 { BFD_RELOC_RX_GPRELW, R_RX_RH_GPRELW },
254 { BFD_RELOC_RX_GPRELL, R_RX_RH_GPRELL },
255 { BFD_RELOC_RX_RELAX, R_RX_RH_RELAX },
256 { BFD_RELOC_RX_SYM, R_RX_SYM },
257 { BFD_RELOC_RX_OP_SUBTRACT, R_RX_OPsub },
258 { BFD_RELOC_RX_OP_NEG, R_RX_OPneg },
259 { BFD_RELOC_RX_ABS8, R_RX_ABS8 },
260 { BFD_RELOC_RX_ABS16, R_RX_ABS16 },
261 { BFD_RELOC_RX_ABS16_REV, R_RX_ABS16_REV },
262 { BFD_RELOC_RX_ABS32, R_RX_ABS32 },
263 { BFD_RELOC_RX_ABS32_REV, R_RX_ABS32_REV },
264 { BFD_RELOC_RX_ABS16UL, R_RX_ABS16UL },
265 { BFD_RELOC_RX_ABS16UW, R_RX_ABS16UW },
266 { BFD_RELOC_RX_ABS16U, R_RX_ABS16U }
269 #define BIGE(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
271 static reloc_howto_type *
272 rx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
273 bfd_reloc_code_real_type code)
277 if (code == BFD_RELOC_RX_32_OP)
278 return rx_elf_howto_table + R_RX_DIR32;
280 for (i = ARRAY_SIZE (rx_reloc_map); --i;)
281 if (rx_reloc_map [i].bfd_reloc_val == code)
282 return rx_elf_howto_table + rx_reloc_map[i].rx_reloc_val;
287 static reloc_howto_type *
288 rx_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED, const char * r_name)
292 for (i = 0; i < ARRAY_SIZE (rx_elf_howto_table); i++)
293 if (rx_elf_howto_table[i].name != NULL
294 && strcasecmp (rx_elf_howto_table[i].name, r_name) == 0)
295 return rx_elf_howto_table + i;
300 /* Set the howto pointer for an RX ELF reloc. */
303 rx_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
305 Elf_Internal_Rela * dst)
309 r_type = ELF32_R_TYPE (dst->r_info);
310 BFD_ASSERT (r_type < (unsigned int) R_RX_max);
311 cache_ptr->howto = rx_elf_howto_table + r_type;
315 get_symbol_value (const char * name,
316 bfd_reloc_status_type * status,
317 struct bfd_link_info * info,
319 asection * input_section,
323 struct bfd_link_hash_entry * h;
325 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
328 || (h->type != bfd_link_hash_defined
329 && h->type != bfd_link_hash_defweak))
330 * status = info->callbacks->undefined_symbol
331 (info, name, input_bfd, input_section, offset, TRUE);
333 value = (h->u.def.value
334 + h->u.def.section->output_section->vma
335 + h->u.def.section->output_offset);
340 get_symbol_value_maybe (const char * name,
341 struct bfd_link_info * info)
344 struct bfd_link_hash_entry * h;
346 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
349 || (h->type != bfd_link_hash_defined
350 && h->type != bfd_link_hash_defweak))
353 value = (h->u.def.value
354 + h->u.def.section->output_section->vma
355 + h->u.def.section->output_offset);
361 get_gp (bfd_reloc_status_type * status,
362 struct bfd_link_info * info,
367 static bfd_boolean cached = FALSE;
368 static bfd_vma cached_value = 0;
372 cached_value = get_symbol_value ("__gp", status, info, abfd, sec, offset);
379 get_romstart (bfd_reloc_status_type * status,
380 struct bfd_link_info * info,
385 static bfd_boolean cached = FALSE;
386 static bfd_vma cached_value = 0;
390 cached_value = get_symbol_value ("_start", status, info, abfd, sec, offset);
397 get_ramstart (bfd_reloc_status_type * status,
398 struct bfd_link_info * info,
403 static bfd_boolean cached = FALSE;
404 static bfd_vma cached_value = 0;
408 cached_value = get_symbol_value ("__datastart", status, info, abfd, sec, offset);
414 #define NUM_STACK_ENTRIES 16
415 static int32_t rx_stack [ NUM_STACK_ENTRIES ];
416 static unsigned int rx_stack_top;
418 #define RX_STACK_PUSH(val) \
421 if (rx_stack_top < NUM_STACK_ENTRIES) \
422 rx_stack [rx_stack_top ++] = (val); \
424 r = bfd_reloc_dangerous; \
428 #define RX_STACK_POP(dest) \
431 if (rx_stack_top > 0) \
432 (dest) = rx_stack [-- rx_stack_top]; \
434 (dest) = 0, r = bfd_reloc_dangerous; \
438 /* Relocate an RX ELF section.
439 There is some attempt to make this function usable for many architectures,
440 both USE_REL and USE_RELA ['twould be nice if such a critter existed],
441 if only to serve as a learning tool.
443 The RELOCATE_SECTION function is called by the new ELF backend linker
444 to handle the relocations for a section.
446 The relocs are always passed as Rela structures; if the section
447 actually uses Rel structures, the r_addend field will always be
450 This function is responsible for adjusting the section contents as
451 necessary, and (if using Rela relocs and generating a relocatable
452 output file) adjusting the reloc addend as necessary.
454 This function does not have to worry about setting the reloc
455 address or the reloc symbol index.
457 LOCAL_SYMS is a pointer to the swapped in local symbols.
459 LOCAL_SECTIONS is an array giving the section in the input file
460 corresponding to the st_shndx field of each local symbol.
462 The global hash table entry for the global symbols can be found
463 via elf_sym_hashes (input_bfd).
465 When generating relocatable output, this function must handle
466 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
467 going to be the section symbol corresponding to the output
468 section, which means that the addend must be adjusted
472 rx_elf_relocate_section
474 struct bfd_link_info * info,
476 asection * input_section,
478 Elf_Internal_Rela * relocs,
479 Elf_Internal_Sym * local_syms,
480 asection ** local_sections)
482 Elf_Internal_Shdr * symtab_hdr;
483 struct elf_link_hash_entry ** sym_hashes;
484 Elf_Internal_Rela * rel;
485 Elf_Internal_Rela * relend;
486 bfd_boolean pid_mode;
487 bfd_boolean saw_subtract = FALSE;
488 const char * table_default_cache = NULL;
489 bfd_vma table_start_cache = 0;
490 bfd_vma table_end_cache = 0;
492 if (elf_elfheader (output_bfd)->e_flags & E_FLAG_RX_PID)
497 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
498 sym_hashes = elf_sym_hashes (input_bfd);
499 relend = relocs + input_section->reloc_count;
500 for (rel = relocs; rel < relend; rel ++)
502 reloc_howto_type * howto;
503 unsigned long r_symndx;
504 Elf_Internal_Sym * sym;
506 struct elf_link_hash_entry * h;
508 bfd_reloc_status_type r;
509 const char * name = NULL;
510 bfd_boolean unresolved_reloc = TRUE;
513 r_type = ELF32_R_TYPE (rel->r_info);
514 r_symndx = ELF32_R_SYM (rel->r_info);
516 howto = rx_elf_howto_table + ELF32_R_TYPE (rel->r_info);
522 if (rx_stack_top == 0)
523 saw_subtract = FALSE;
525 if (r_symndx < symtab_hdr->sh_info)
527 sym = local_syms + r_symndx;
528 sec = local_sections [r_symndx];
529 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, & sec, rel);
531 name = bfd_elf_string_from_elf_section
532 (input_bfd, symtab_hdr->sh_link, sym->st_name);
533 name = (sym->st_name == 0) ? bfd_section_name (input_bfd, sec) : name;
537 bfd_boolean warned, ignored;
539 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
540 r_symndx, symtab_hdr, sym_hashes, h,
541 sec, relocation, unresolved_reloc,
544 name = h->root.root.string;
547 if (strncmp (name, "$tableentry$default$", 20) == 0)
552 bfd_reloc_status_type tstat = 0;
554 if (table_default_cache != name)
557 /* All relocs for a given table should be to the same
558 (weak) default symbol) so we can use it to detect a
559 cache miss. We use the offset into the table to find
560 the "real" symbol. Calculate and store the table's
563 table_default_cache = name;
565 /* We have already done error checking in rx_table_find(). */
567 buf = (char *) malloc (13 + strlen (name + 20));
569 sprintf (buf, "$tablestart$%s", name + 20);
571 table_start_cache = get_symbol_value (buf,
578 sprintf (buf, "$tableend$%s", name + 20);
580 table_end_cache = get_symbol_value (buf,
590 entry_vma = (input_section->output_section->vma
591 + input_section->output_offset
594 if (table_end_cache <= entry_vma || entry_vma < table_start_cache)
596 _bfd_error_handler (_("%B:%A: table entry %s outside table"),
597 input_bfd, input_section,
600 else if ((int) (entry_vma - table_start_cache) % 4)
602 _bfd_error_handler (_("%B:%A: table entry %s not word-aligned within table"),
603 input_bfd, input_section,
608 idx = (int) (entry_vma - table_start_cache) / 4;
610 /* This will look like $tableentry$<N>$<name> */
611 buf = (char *) malloc (12 + 20 + strlen (name + 20));
612 sprintf (buf, "$tableentry$%d$%s", idx, name + 20);
614 h = (struct elf_link_hash_entry *) bfd_link_hash_lookup (info->hash, buf, FALSE, FALSE, TRUE);
618 relocation = (h->root.u.def.value
619 + h->root.u.def.section->output_section->vma
620 + h->root.u.def.section->output_offset);;
627 if (sec != NULL && discarded_section (sec))
628 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
629 rel, 1, relend, howto, 0, contents);
631 if (info->relocatable)
633 /* This is a relocatable link. We don't have to change
634 anything, unless the reloc is against a section symbol,
635 in which case we have to adjust according to where the
636 section symbol winds up in the output section. */
637 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
638 rel->r_addend += sec->output_offset;
642 if (h != NULL && h->root.type == bfd_link_hash_undefweak)
643 /* If the symbol is undefined and weak
644 then the relocation resolves to zero. */
648 if (howto->pc_relative)
650 relocation -= (input_section->output_section->vma
651 + input_section->output_offset
653 if (r_type != R_RX_RH_3_PCREL
654 && r_type != R_RX_DIR3U_PCREL)
658 relocation += rel->r_addend;
663 #define RANGE(a,b) if (a > (long) relocation || (long) relocation > b) r = bfd_reloc_overflow
664 #define ALIGN(m) if (relocation & m) r = bfd_reloc_other;
665 #define OP(i) (contents[rel->r_offset + (i)])
666 #define WARN_REDHAT(type) \
667 _bfd_error_handler (_("%B:%A: Warning: deprecated Red Hat reloc " type " detected against: %s."), \
668 input_bfd, input_section, name)
670 /* Check for unsafe relocs in PID mode. These are any relocs where
671 an absolute address is being computed. There are special cases
672 for relocs against symbols that are known to be referenced in
673 crt0.o before the PID base address register has been initialised. */
674 #define UNSAFE_FOR_PID \
679 && sec->flags & SEC_READONLY \
680 && !(input_section->flags & SEC_DEBUGGING) \
681 && strcmp (name, "__pid_base") != 0 \
682 && strcmp (name, "__gp") != 0 \
683 && strcmp (name, "__romdatastart") != 0 \
685 _bfd_error_handler (_("%B(%A): unsafe PID relocation %s at 0x%08lx (against %s in %s)"), \
686 input_bfd, input_section, howto->name, \
687 input_section->output_section->vma + input_section->output_offset + rel->r_offset, \
692 /* Opcode relocs are always big endian. Data relocs are bi-endian. */
701 case R_RX_RH_3_PCREL:
702 WARN_REDHAT ("RX_RH_3_PCREL");
705 OP (0) |= relocation & 0x07;
709 WARN_REDHAT ("RX_RH_8_NEG");
710 relocation = - relocation;
711 case R_RX_DIR8S_PCREL:
730 WARN_REDHAT ("RX_RH_16_NEG");
731 relocation = - relocation;
732 case R_RX_DIR16S_PCREL:
734 RANGE (-32768, 32767);
735 #if RX_OPCODE_BIG_ENDIAN
738 OP (1) = relocation >> 8;
743 WARN_REDHAT ("RX_RH_16_OP");
745 RANGE (-32768, 32767);
746 #if RX_OPCODE_BIG_ENDIAN
748 OP (0) = relocation >> 8;
751 OP (1) = relocation >> 8;
757 RANGE (-32768, 65535);
758 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
761 OP (0) = relocation >> 8;
766 OP (1) = relocation >> 8;
773 #if RX_OPCODE_BIG_ENDIAN
775 OP (0) = relocation >> 8;
778 OP (1) = relocation >> 8;
784 RANGE (-32768, 65536);
785 #if RX_OPCODE_BIG_ENDIAN
787 OP (0) = relocation >> 8;
790 OP (1) = relocation >> 8;
796 RANGE (-32768, 65536);
797 #if RX_OPCODE_BIG_ENDIAN
799 OP (1) = relocation >> 8;
802 OP (0) = relocation >> 8;
806 case R_RX_DIR3U_PCREL:
809 OP (0) |= relocation & 0x07;
814 WARN_REDHAT ("RX_RH_24_NEG");
815 relocation = - relocation;
816 case R_RX_DIR24S_PCREL:
817 RANGE (-0x800000, 0x7fffff);
818 #if RX_OPCODE_BIG_ENDIAN
820 OP (1) = relocation >> 8;
821 OP (0) = relocation >> 16;
824 OP (1) = relocation >> 8;
825 OP (2) = relocation >> 16;
831 WARN_REDHAT ("RX_RH_24_OP");
832 RANGE (-0x800000, 0x7fffff);
833 #if RX_OPCODE_BIG_ENDIAN
835 OP (1) = relocation >> 8;
836 OP (0) = relocation >> 16;
839 OP (1) = relocation >> 8;
840 OP (2) = relocation >> 16;
846 RANGE (-0x800000, 0x7fffff);
847 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
850 OP (1) = relocation >> 8;
851 OP (0) = relocation >> 16;
856 OP (1) = relocation >> 8;
857 OP (2) = relocation >> 16;
863 WARN_REDHAT ("RX_RH_24_UNS");
865 #if RX_OPCODE_BIG_ENDIAN
867 OP (1) = relocation >> 8;
868 OP (0) = relocation >> 16;
871 OP (1) = relocation >> 8;
872 OP (2) = relocation >> 16;
878 WARN_REDHAT ("RX_RH_32_NEG");
879 relocation = - relocation;
880 #if RX_OPCODE_BIG_ENDIAN
882 OP (2) = relocation >> 8;
883 OP (1) = relocation >> 16;
884 OP (0) = relocation >> 24;
887 OP (1) = relocation >> 8;
888 OP (2) = relocation >> 16;
889 OP (3) = relocation >> 24;
895 WARN_REDHAT ("RX_RH_32_OP");
896 #if RX_OPCODE_BIG_ENDIAN
898 OP (2) = relocation >> 8;
899 OP (1) = relocation >> 16;
900 OP (0) = relocation >> 24;
903 OP (1) = relocation >> 8;
904 OP (2) = relocation >> 16;
905 OP (3) = relocation >> 24;
910 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
913 OP (2) = relocation >> 8;
914 OP (1) = relocation >> 16;
915 OP (0) = relocation >> 24;
920 OP (1) = relocation >> 8;
921 OP (2) = relocation >> 16;
922 OP (3) = relocation >> 24;
927 if (BIGE (output_bfd))
930 OP (1) = relocation >> 8;
931 OP (2) = relocation >> 16;
932 OP (3) = relocation >> 24;
937 OP (2) = relocation >> 8;
938 OP (1) = relocation >> 16;
939 OP (0) = relocation >> 24;
946 WARN_REDHAT ("RX_RH_DIFF");
947 val = bfd_get_32 (output_bfd, & OP (0));
949 bfd_put_32 (output_bfd, val, & OP (0));
954 WARN_REDHAT ("RX_RH_GPRELB");
955 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
957 #if RX_OPCODE_BIG_ENDIAN
959 OP (0) = relocation >> 8;
962 OP (1) = relocation >> 8;
967 WARN_REDHAT ("RX_RH_GPRELW");
968 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
972 #if RX_OPCODE_BIG_ENDIAN
974 OP (0) = relocation >> 8;
977 OP (1) = relocation >> 8;
982 WARN_REDHAT ("RX_RH_GPRELL");
983 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
987 #if RX_OPCODE_BIG_ENDIAN
989 OP (0) = relocation >> 8;
992 OP (1) = relocation >> 8;
996 /* Internal relocations just for relaxation: */
997 case R_RX_RH_ABS5p5B:
998 RX_STACK_POP (relocation);
1001 OP (0) |= relocation >> 2;
1003 OP (1) |= (relocation << 6) & 0x80;
1004 OP (1) |= (relocation << 3) & 0x08;
1007 case R_RX_RH_ABS5p5W:
1008 RX_STACK_POP (relocation);
1013 OP (0) |= relocation >> 2;
1015 OP (1) |= (relocation << 6) & 0x80;
1016 OP (1) |= (relocation << 3) & 0x08;
1019 case R_RX_RH_ABS5p5L:
1020 RX_STACK_POP (relocation);
1025 OP (0) |= relocation >> 2;
1027 OP (1) |= (relocation << 6) & 0x80;
1028 OP (1) |= (relocation << 3) & 0x08;
1031 case R_RX_RH_ABS5p8B:
1032 RX_STACK_POP (relocation);
1035 OP (0) |= (relocation << 3) & 0x80;
1036 OP (0) |= relocation & 0x0f;
1039 case R_RX_RH_ABS5p8W:
1040 RX_STACK_POP (relocation);
1045 OP (0) |= (relocation << 3) & 0x80;
1046 OP (0) |= relocation & 0x0f;
1049 case R_RX_RH_ABS5p8L:
1050 RX_STACK_POP (relocation);
1055 OP (0) |= (relocation << 3) & 0x80;
1056 OP (0) |= relocation & 0x0f;
1059 case R_RX_RH_UIMM4p8:
1062 OP (0) |= relocation << 4;
1065 case R_RX_RH_UNEG4p8:
1068 OP (0) |= (-relocation) << 4;
1071 /* Complex reloc handling: */
1075 RX_STACK_POP (relocation);
1076 #if RX_OPCODE_BIG_ENDIAN
1077 OP (3) = relocation;
1078 OP (2) = relocation >> 8;
1079 OP (1) = relocation >> 16;
1080 OP (0) = relocation >> 24;
1082 OP (0) = relocation;
1083 OP (1) = relocation >> 8;
1084 OP (2) = relocation >> 16;
1085 OP (3) = relocation >> 24;
1089 case R_RX_ABS32_REV:
1091 RX_STACK_POP (relocation);
1092 #if RX_OPCODE_BIG_ENDIAN
1093 OP (0) = relocation;
1094 OP (1) = relocation >> 8;
1095 OP (2) = relocation >> 16;
1096 OP (3) = relocation >> 24;
1098 OP (3) = relocation;
1099 OP (2) = relocation >> 8;
1100 OP (1) = relocation >> 16;
1101 OP (0) = relocation >> 24;
1105 case R_RX_ABS24S_PCREL:
1108 RX_STACK_POP (relocation);
1109 RANGE (-0x800000, 0x7fffff);
1110 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
1112 OP (2) = relocation;
1113 OP (1) = relocation >> 8;
1114 OP (0) = relocation >> 16;
1118 OP (0) = relocation;
1119 OP (1) = relocation >> 8;
1120 OP (2) = relocation >> 16;
1126 RX_STACK_POP (relocation);
1127 RANGE (-32768, 65535);
1128 #if RX_OPCODE_BIG_ENDIAN
1129 OP (1) = relocation;
1130 OP (0) = relocation >> 8;
1132 OP (0) = relocation;
1133 OP (1) = relocation >> 8;
1137 case R_RX_ABS16_REV:
1139 RX_STACK_POP (relocation);
1140 RANGE (-32768, 65535);
1141 #if RX_OPCODE_BIG_ENDIAN
1142 OP (0) = relocation;
1143 OP (1) = relocation >> 8;
1145 OP (1) = relocation;
1146 OP (0) = relocation >> 8;
1150 case R_RX_ABS16S_PCREL:
1152 RX_STACK_POP (relocation);
1153 RANGE (-32768, 32767);
1154 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
1156 OP (1) = relocation;
1157 OP (0) = relocation >> 8;
1161 OP (0) = relocation;
1162 OP (1) = relocation >> 8;
1168 RX_STACK_POP (relocation);
1170 #if RX_OPCODE_BIG_ENDIAN
1171 OP (1) = relocation;
1172 OP (0) = relocation >> 8;
1174 OP (0) = relocation;
1175 OP (1) = relocation >> 8;
1181 RX_STACK_POP (relocation);
1184 #if RX_OPCODE_BIG_ENDIAN
1185 OP (1) = relocation;
1186 OP (0) = relocation >> 8;
1188 OP (0) = relocation;
1189 OP (1) = relocation >> 8;
1195 RX_STACK_POP (relocation);
1198 #if RX_OPCODE_BIG_ENDIAN
1199 OP (1) = relocation;
1200 OP (0) = relocation >> 8;
1202 OP (0) = relocation;
1203 OP (1) = relocation >> 8;
1209 RX_STACK_POP (relocation);
1211 OP (0) = relocation;
1216 RX_STACK_POP (relocation);
1218 OP (0) = relocation;
1223 RX_STACK_POP (relocation);
1226 OP (0) = relocation;
1231 RX_STACK_POP (relocation);
1234 OP (0) = relocation;
1239 case R_RX_ABS8S_PCREL:
1240 RX_STACK_POP (relocation);
1242 OP (0) = relocation;
1246 if (r_symndx < symtab_hdr->sh_info)
1247 RX_STACK_PUSH (sec->output_section->vma
1248 + sec->output_offset
1254 && (h->root.type == bfd_link_hash_defined
1255 || h->root.type == bfd_link_hash_defweak))
1256 RX_STACK_PUSH (h->root.u.def.value
1257 + sec->output_section->vma
1258 + sec->output_offset
1261 _bfd_error_handler (_("Warning: RX_SYM reloc with an unknown symbol"));
1269 saw_subtract = TRUE;
1272 RX_STACK_PUSH (tmp);
1280 RX_STACK_POP (tmp1);
1281 RX_STACK_POP (tmp2);
1283 RX_STACK_PUSH (tmp1);
1291 saw_subtract = TRUE;
1292 RX_STACK_POP (tmp1);
1293 RX_STACK_POP (tmp2);
1295 RX_STACK_PUSH (tmp2);
1303 RX_STACK_POP (tmp1);
1304 RX_STACK_POP (tmp2);
1306 RX_STACK_PUSH (tmp1);
1314 RX_STACK_POP (tmp1);
1315 RX_STACK_POP (tmp2);
1317 RX_STACK_PUSH (tmp1);
1325 RX_STACK_POP (tmp1);
1326 RX_STACK_POP (tmp2);
1328 RX_STACK_PUSH (tmp1);
1336 RX_STACK_POP (tmp1);
1337 RX_STACK_POP (tmp2);
1339 RX_STACK_PUSH (tmp1);
1343 case R_RX_OPsctsize:
1344 RX_STACK_PUSH (input_section->size);
1348 RX_STACK_PUSH (input_section->output_section->vma);
1355 RX_STACK_POP (tmp1);
1356 RX_STACK_POP (tmp2);
1358 RX_STACK_PUSH (tmp1);
1366 RX_STACK_POP (tmp1);
1367 RX_STACK_POP (tmp2);
1369 RX_STACK_PUSH (tmp1);
1377 RX_STACK_POP (tmp1);
1378 RX_STACK_POP (tmp2);
1380 RX_STACK_PUSH (tmp1);
1390 RX_STACK_PUSH (tmp);
1398 RX_STACK_POP (tmp1);
1399 RX_STACK_POP (tmp2);
1401 RX_STACK_PUSH (tmp1);
1406 RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset));
1410 RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset));
1414 r = bfd_reloc_notsupported;
1418 if (r != bfd_reloc_ok)
1420 const char * msg = NULL;
1424 case bfd_reloc_overflow:
1425 /* Catch the case of a missing function declaration
1426 and emit a more helpful error message. */
1427 if (r_type == R_RX_DIR24S_PCREL)
1428 msg = _("%B(%A): error: call to undefined function '%s'");
1430 r = info->callbacks->reloc_overflow
1431 (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
1432 input_bfd, input_section, rel->r_offset);
1435 case bfd_reloc_undefined:
1436 r = info->callbacks->undefined_symbol
1437 (info, name, input_bfd, input_section, rel->r_offset,
1441 case bfd_reloc_other:
1442 msg = _("%B(%A): warning: unaligned access to symbol '%s' in the small data area");
1445 case bfd_reloc_outofrange:
1446 msg = _("%B(%A): internal error: out of range error");
1449 case bfd_reloc_notsupported:
1450 msg = _("%B(%A): internal error: unsupported relocation error");
1453 case bfd_reloc_dangerous:
1454 msg = _("%B(%A): internal error: dangerous relocation");
1458 msg = _("%B(%A): internal error: unknown error");
1463 _bfd_error_handler (msg, input_bfd, input_section, name);
1473 /* Relaxation Support. */
1475 /* Progression of relocations from largest operand size to smallest
1479 next_smaller_reloc (int r)
1483 case R_RX_DIR32: return R_RX_DIR24S;
1484 case R_RX_DIR24S: return R_RX_DIR16S;
1485 case R_RX_DIR16S: return R_RX_DIR8S;
1486 case R_RX_DIR8S: return R_RX_NONE;
1488 case R_RX_DIR16: return R_RX_DIR8;
1489 case R_RX_DIR8: return R_RX_NONE;
1491 case R_RX_DIR16U: return R_RX_DIR8U;
1492 case R_RX_DIR8U: return R_RX_NONE;
1494 case R_RX_DIR24S_PCREL: return R_RX_DIR16S_PCREL;
1495 case R_RX_DIR16S_PCREL: return R_RX_DIR8S_PCREL;
1496 case R_RX_DIR8S_PCREL: return R_RX_DIR3U_PCREL;
1498 case R_RX_DIR16UL: return R_RX_DIR8UL;
1499 case R_RX_DIR8UL: return R_RX_NONE;
1500 case R_RX_DIR16UW: return R_RX_DIR8UW;
1501 case R_RX_DIR8UW: return R_RX_NONE;
1503 case R_RX_RH_32_OP: return R_RX_RH_24_OP;
1504 case R_RX_RH_24_OP: return R_RX_RH_16_OP;
1505 case R_RX_RH_16_OP: return R_RX_DIR8;
1507 case R_RX_ABS32: return R_RX_ABS24S;
1508 case R_RX_ABS24S: return R_RX_ABS16S;
1509 case R_RX_ABS16: return R_RX_ABS8;
1510 case R_RX_ABS16U: return R_RX_ABS8U;
1511 case R_RX_ABS16S: return R_RX_ABS8S;
1512 case R_RX_ABS8: return R_RX_NONE;
1513 case R_RX_ABS8U: return R_RX_NONE;
1514 case R_RX_ABS8S: return R_RX_NONE;
1515 case R_RX_ABS24S_PCREL: return R_RX_ABS16S_PCREL;
1516 case R_RX_ABS16S_PCREL: return R_RX_ABS8S_PCREL;
1517 case R_RX_ABS8S_PCREL: return R_RX_NONE;
1518 case R_RX_ABS16UL: return R_RX_ABS8UL;
1519 case R_RX_ABS16UW: return R_RX_ABS8UW;
1520 case R_RX_ABS8UL: return R_RX_NONE;
1521 case R_RX_ABS8UW: return R_RX_NONE;
1526 /* Delete some bytes from a section while relaxing. */
1529 elf32_rx_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count,
1530 Elf_Internal_Rela *alignment_rel, int force_snip)
1532 Elf_Internal_Shdr * symtab_hdr;
1533 unsigned int sec_shndx;
1534 bfd_byte * contents;
1535 Elf_Internal_Rela * irel;
1536 Elf_Internal_Rela * irelend;
1537 Elf_Internal_Sym * isym;
1538 Elf_Internal_Sym * isymend;
1540 unsigned int symcount;
1541 struct elf_link_hash_entry ** sym_hashes;
1542 struct elf_link_hash_entry ** end_hashes;
1547 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1549 contents = elf_section_data (sec)->this_hdr.contents;
1551 /* The deletion must stop at the next alignment boundary, if
1552 ALIGNMENT_REL is non-NULL. */
1555 toaddr = alignment_rel->r_offset;
1557 irel = elf_section_data (sec)->relocs;
1558 irelend = irel + sec->reloc_count;
1560 /* Actually delete the bytes. */
1561 memmove (contents + addr, contents + addr + count,
1562 (size_t) (toaddr - addr - count));
1564 /* If we don't have an alignment marker to worry about, we can just
1565 shrink the section. Otherwise, we have to fill in the newly
1566 created gap with NOP insns (0x03). */
1570 memset (contents + toaddr - count, 0x03, count);
1572 /* Adjust all the relocs. */
1573 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1575 /* Get the new reloc address. */
1576 if (irel->r_offset > addr
1577 && (irel->r_offset < toaddr
1578 || (force_snip && irel->r_offset == toaddr)))
1579 irel->r_offset -= count;
1581 /* If we see an ALIGN marker at the end of the gap, we move it
1582 to the beginning of the gap, since marking these gaps is what
1584 if (irel->r_offset == toaddr
1585 && ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX
1586 && irel->r_addend & RX_RELAXA_ALIGN)
1587 irel->r_offset -= count;
1590 /* Adjust the local symbols defined in this section. */
1591 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1592 isym = (Elf_Internal_Sym *) symtab_hdr->contents;
1593 isymend = isym + symtab_hdr->sh_info;
1595 for (; isym < isymend; isym++)
1597 /* If the symbol is in the range of memory we just moved, we
1598 have to adjust its value. */
1599 if (isym->st_shndx == sec_shndx
1600 && isym->st_value > addr
1601 && isym->st_value < toaddr)
1602 isym->st_value -= count;
1604 /* If the symbol *spans* the bytes we just deleted (i.e. it's
1605 *end* is in the moved bytes but it's *start* isn't), then we
1606 must adjust its size. */
1607 if (isym->st_shndx == sec_shndx
1608 && isym->st_value < addr
1609 && isym->st_value + isym->st_size > addr
1610 && isym->st_value + isym->st_size < toaddr)
1611 isym->st_size -= count;
1614 /* Now adjust the global symbols defined in this section. */
1615 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1616 - symtab_hdr->sh_info);
1617 sym_hashes = elf_sym_hashes (abfd);
1618 end_hashes = sym_hashes + symcount;
1620 for (; sym_hashes < end_hashes; sym_hashes++)
1622 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1624 if ((sym_hash->root.type == bfd_link_hash_defined
1625 || sym_hash->root.type == bfd_link_hash_defweak)
1626 && sym_hash->root.u.def.section == sec)
1628 /* As above, adjust the value if needed. */
1629 if (sym_hash->root.u.def.value > addr
1630 && sym_hash->root.u.def.value < toaddr)
1631 sym_hash->root.u.def.value -= count;
1633 /* As above, adjust the size if needed. */
1634 if (sym_hash->root.u.def.value < addr
1635 && sym_hash->root.u.def.value + sym_hash->size > addr
1636 && sym_hash->root.u.def.value + sym_hash->size < toaddr)
1637 sym_hash->size -= count;
1644 /* Used to sort relocs by address. If relocs have the same address,
1645 we maintain their relative order, except that R_RX_RH_RELAX
1646 alignment relocs must be the first reloc for any given address. */
1649 reloc_bubblesort (Elf_Internal_Rela * r, int count)
1653 bfd_boolean swappit;
1655 /* This is almost a classic bubblesort. It's the slowest sort, but
1656 we're taking advantage of the fact that the relocations are
1657 mostly in order already (the assembler emits them that way) and
1658 we need relocs with the same address to remain in the same
1664 for (i = 0; i < count - 1; i ++)
1666 if (r[i].r_offset > r[i + 1].r_offset)
1668 else if (r[i].r_offset < r[i + 1].r_offset)
1670 else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX
1671 && (r[i + 1].r_addend & RX_RELAXA_ALIGN))
1673 else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX
1674 && (r[i + 1].r_addend & RX_RELAXA_ELIGN)
1675 && !(ELF32_R_TYPE (r[i].r_info) == R_RX_RH_RELAX
1676 && (r[i].r_addend & RX_RELAXA_ALIGN)))
1683 Elf_Internal_Rela tmp;
1688 /* If we do move a reloc back, re-scan to see if it
1689 needs to be moved even further back. This avoids
1690 most of the O(n^2) behavior for our cases. */
1700 #define OFFSET_FOR_RELOC(rel, lrel, scale) \
1701 rx_offset_for_reloc (abfd, rel + 1, symtab_hdr, shndx_buf, intsyms, \
1702 lrel, abfd, sec, link_info, scale)
1705 rx_offset_for_reloc (bfd * abfd,
1706 Elf_Internal_Rela * rel,
1707 Elf_Internal_Shdr * symtab_hdr,
1708 Elf_External_Sym_Shndx * shndx_buf ATTRIBUTE_UNUSED,
1709 Elf_Internal_Sym * intsyms,
1710 Elf_Internal_Rela ** lrel,
1712 asection * input_section,
1713 struct bfd_link_info * info,
1717 bfd_reloc_status_type r;
1721 /* REL is the first of 1..N relocations. We compute the symbol
1722 value for each relocation, then combine them if needed. LREL
1723 gets a pointer to the last relocation used. */
1728 /* Get the value of the symbol referred to by the reloc. */
1729 if (ELF32_R_SYM (rel->r_info) < symtab_hdr->sh_info)
1731 /* A local symbol. */
1732 Elf_Internal_Sym *isym;
1735 isym = intsyms + ELF32_R_SYM (rel->r_info);
1737 if (isym->st_shndx == SHN_UNDEF)
1738 ssec = bfd_und_section_ptr;
1739 else if (isym->st_shndx == SHN_ABS)
1740 ssec = bfd_abs_section_ptr;
1741 else if (isym->st_shndx == SHN_COMMON)
1742 ssec = bfd_com_section_ptr;
1744 ssec = bfd_section_from_elf_index (abfd,
1747 /* Initial symbol value. */
1748 symval = isym->st_value;
1750 /* GAS may have made this symbol relative to a section, in
1751 which case, we have to add the addend to find the
1753 if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
1754 symval += rel->r_addend;
1758 if ((ssec->flags & SEC_MERGE)
1759 && ssec->sec_info_type == SEC_INFO_TYPE_MERGE)
1760 symval = _bfd_merged_section_offset (abfd, & ssec,
1761 elf_section_data (ssec)->sec_info,
1765 /* Now make the offset relative to where the linker is putting it. */
1768 ssec->output_section->vma + ssec->output_offset;
1770 symval += rel->r_addend;
1775 struct elf_link_hash_entry * h;
1777 /* An external symbol. */
1778 indx = ELF32_R_SYM (rel->r_info) - symtab_hdr->sh_info;
1779 h = elf_sym_hashes (abfd)[indx];
1780 BFD_ASSERT (h != NULL);
1782 if (h->root.type != bfd_link_hash_defined
1783 && h->root.type != bfd_link_hash_defweak)
1785 /* This appears to be a reference to an undefined
1786 symbol. Just ignore it--it will be caught by the
1787 regular reloc processing. */
1793 symval = (h->root.u.def.value
1794 + h->root.u.def.section->output_section->vma
1795 + h->root.u.def.section->output_offset);
1797 symval += rel->r_addend;
1800 switch (ELF32_R_TYPE (rel->r_info))
1803 RX_STACK_PUSH (symval);
1807 RX_STACK_POP (tmp1);
1809 RX_STACK_PUSH (tmp1);
1813 RX_STACK_POP (tmp1);
1814 RX_STACK_POP (tmp2);
1816 RX_STACK_PUSH (tmp1);
1820 RX_STACK_POP (tmp1);
1821 RX_STACK_POP (tmp2);
1823 RX_STACK_PUSH (tmp2);
1827 RX_STACK_POP (tmp1);
1828 RX_STACK_POP (tmp2);
1830 RX_STACK_PUSH (tmp1);
1834 RX_STACK_POP (tmp1);
1835 RX_STACK_POP (tmp2);
1837 RX_STACK_PUSH (tmp1);
1841 RX_STACK_POP (tmp1);
1842 RX_STACK_POP (tmp2);
1844 RX_STACK_PUSH (tmp1);
1848 RX_STACK_POP (tmp1);
1849 RX_STACK_POP (tmp2);
1851 RX_STACK_PUSH (tmp1);
1854 case R_RX_OPsctsize:
1855 RX_STACK_PUSH (input_section->size);
1859 RX_STACK_PUSH (input_section->output_section->vma);
1863 RX_STACK_POP (tmp1);
1864 RX_STACK_POP (tmp2);
1866 RX_STACK_PUSH (tmp1);
1870 RX_STACK_POP (tmp1);
1871 RX_STACK_POP (tmp2);
1873 RX_STACK_PUSH (tmp1);
1877 RX_STACK_POP (tmp1);
1878 RX_STACK_POP (tmp2);
1880 RX_STACK_PUSH (tmp1);
1884 RX_STACK_POP (tmp1);
1886 RX_STACK_PUSH (tmp1);
1890 RX_STACK_POP (tmp1);
1891 RX_STACK_POP (tmp2);
1893 RX_STACK_PUSH (tmp1);
1897 RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset));
1901 RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset));
1909 RX_STACK_POP (symval);
1920 RX_STACK_POP (symval);
1928 RX_STACK_POP (symval);
1939 move_reloc (Elf_Internal_Rela * irel, Elf_Internal_Rela * srel, int delta)
1941 bfd_vma old_offset = srel->r_offset;
1944 while (irel <= srel)
1946 if (irel->r_offset == old_offset)
1947 irel->r_offset += delta;
1952 /* Relax one section. */
1955 elf32_rx_relax_section (bfd * abfd,
1957 struct bfd_link_info * link_info,
1958 bfd_boolean * again,
1959 bfd_boolean allow_pcrel3)
1961 Elf_Internal_Shdr * symtab_hdr;
1962 Elf_Internal_Shdr * shndx_hdr;
1963 Elf_Internal_Rela * internal_relocs;
1964 Elf_Internal_Rela * free_relocs = NULL;
1965 Elf_Internal_Rela * irel;
1966 Elf_Internal_Rela * srel;
1967 Elf_Internal_Rela * irelend;
1968 Elf_Internal_Rela * next_alignment;
1969 Elf_Internal_Rela * prev_alignment;
1970 bfd_byte * contents = NULL;
1971 bfd_byte * free_contents = NULL;
1972 Elf_Internal_Sym * intsyms = NULL;
1973 Elf_Internal_Sym * free_intsyms = NULL;
1974 Elf_External_Sym_Shndx * shndx_buf = NULL;
1980 int section_alignment_glue;
1981 /* how much to scale the relocation by - 1, 2, or 4. */
1984 /* Assume nothing changes. */
1987 /* We don't have to do anything for a relocatable link, if
1988 this section does not have relocs, or if this is not a
1990 if (link_info->relocatable
1991 || (sec->flags & SEC_RELOC) == 0
1992 || sec->reloc_count == 0
1993 || (sec->flags & SEC_CODE) == 0)
1996 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1997 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
1999 sec_start = sec->output_section->vma + sec->output_offset;
2001 /* Get the section contents. */
2002 if (elf_section_data (sec)->this_hdr.contents != NULL)
2003 contents = elf_section_data (sec)->this_hdr.contents;
2004 /* Go get them off disk. */
2007 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
2009 elf_section_data (sec)->this_hdr.contents = contents;
2012 /* Read this BFD's symbols. */
2013 /* Get cached copy if it exists. */
2014 if (symtab_hdr->contents != NULL)
2015 intsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
2018 intsyms = bfd_elf_get_elf_syms (abfd, symtab_hdr, symtab_hdr->sh_info, 0, NULL, NULL, NULL);
2019 symtab_hdr->contents = (bfd_byte *) intsyms;
2022 if (shndx_hdr->sh_size != 0)
2026 amt = symtab_hdr->sh_info;
2027 amt *= sizeof (Elf_External_Sym_Shndx);
2028 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
2029 if (shndx_buf == NULL)
2031 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
2032 || bfd_bread (shndx_buf, amt, abfd) != amt)
2034 shndx_hdr->contents = (bfd_byte *) shndx_buf;
2037 /* Get a copy of the native relocations. */
2038 internal_relocs = (_bfd_elf_link_read_relocs
2039 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
2040 link_info->keep_memory));
2041 if (internal_relocs == NULL)
2043 if (! link_info->keep_memory)
2044 free_relocs = internal_relocs;
2046 /* The RL_ relocs must be just before the operand relocs they go
2047 with, so we must sort them to guarantee this. We use bubblesort
2048 instead of qsort so we can guarantee that relocs with the same
2049 address remain in the same relative order. */
2050 reloc_bubblesort (internal_relocs, sec->reloc_count);
2052 /* Walk through them looking for relaxing opportunities. */
2053 irelend = internal_relocs + sec->reloc_count;
2055 /* This will either be NULL or a pointer to the next alignment
2057 next_alignment = internal_relocs;
2058 /* This will be the previous alignment, although at first it points
2059 to the first real relocation. */
2060 prev_alignment = internal_relocs;
2062 /* We calculate worst case shrinkage caused by alignment directives.
2063 No fool-proof, but better than either ignoring the problem or
2064 doing heavy duty analysis of all the alignment markers in all
2066 section_alignment_glue = 0;
2067 for (irel = internal_relocs; irel < irelend; irel++)
2068 if (ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX
2069 && irel->r_addend & RX_RELAXA_ALIGN)
2071 int this_glue = 1 << (irel->r_addend & RX_RELAXA_ANUM);
2073 if (section_alignment_glue < this_glue)
2074 section_alignment_glue = this_glue;
2076 /* Worst case is all 0..N alignments, in order, causing 2*N-1 byte
2078 section_alignment_glue *= 2;
2080 for (irel = internal_relocs; irel < irelend; irel++)
2082 unsigned char *insn;
2085 /* The insns we care about are all marked with one of these. */
2086 if (ELF32_R_TYPE (irel->r_info) != R_RX_RH_RELAX)
2089 if (irel->r_addend & RX_RELAXA_ALIGN
2090 || next_alignment == internal_relocs)
2092 /* When we delete bytes, we need to maintain all the alignments
2093 indicated. In addition, we need to be careful about relaxing
2094 jumps across alignment boundaries - these displacements
2095 *grow* when we delete bytes. For now, don't shrink
2096 displacements across an alignment boundary, just in case.
2097 Note that this only affects relocations to the same
2099 prev_alignment = next_alignment;
2100 next_alignment += 2;
2101 while (next_alignment < irelend
2102 && (ELF32_R_TYPE (next_alignment->r_info) != R_RX_RH_RELAX
2103 || !(next_alignment->r_addend & RX_RELAXA_ELIGN)))
2105 if (next_alignment >= irelend || next_alignment->r_offset == 0)
2106 next_alignment = NULL;
2109 /* When we hit alignment markers, see if we've shrunk enough
2110 before them to reduce the gap without violating the alignment
2112 if (irel->r_addend & RX_RELAXA_ALIGN)
2114 /* At this point, the next relocation *should* be the ELIGN
2116 Elf_Internal_Rela *erel = irel + 1;
2117 unsigned int alignment, nbytes;
2119 if (ELF32_R_TYPE (erel->r_info) != R_RX_RH_RELAX)
2121 if (!(erel->r_addend & RX_RELAXA_ELIGN))
2124 alignment = 1 << (irel->r_addend & RX_RELAXA_ANUM);
2126 if (erel->r_offset - irel->r_offset < alignment)
2129 nbytes = erel->r_offset - irel->r_offset;
2130 nbytes /= alignment;
2131 nbytes *= alignment;
2133 elf32_rx_relax_delete_bytes (abfd, sec, erel->r_offset-nbytes, nbytes, next_alignment,
2134 erel->r_offset == sec->size);
2140 if (irel->r_addend & RX_RELAXA_ELIGN)
2143 insn = contents + irel->r_offset;
2145 nrelocs = irel->r_addend & RX_RELAXA_RNUM;
2147 /* At this point, we have an insn that is a candidate for linker
2148 relaxation. There are NRELOCS relocs following that may be
2149 relaxed, although each reloc may be made of more than one
2150 reloc entry (such as gp-rel symbols). */
2152 /* Get the value of the symbol referred to by the reloc. Just
2153 in case this is the last reloc in the list, use the RL's
2154 addend to choose between this reloc (no addend) or the next
2155 (yes addend, which means at least one following reloc). */
2157 /* srel points to the "current" reloction for this insn -
2158 actually the last reloc for a given operand, which is the one
2159 we need to update. We check the relaxations in the same
2160 order that the relocations happen, so we'll just push it
2164 pc = sec->output_section->vma + sec->output_offset
2168 symval = OFFSET_FOR_RELOC (srel, &srel, &scale); \
2169 pcrel = symval - pc + srel->r_addend; \
2172 #define SNIPNR(offset, nbytes) \
2173 elf32_rx_relax_delete_bytes (abfd, sec, (insn - contents) + offset, nbytes, next_alignment, 0);
2174 #define SNIP(offset, nbytes, newtype) \
2175 SNIPNR (offset, nbytes); \
2176 srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), newtype)
2178 /* The order of these bit tests must match the order that the
2179 relocs appear in. Since we sorted those by offset, we can
2182 /* Note that the numbers in, say, DSP6 are the bit offsets of
2183 the code fields that describe the operand. Bits number 0 for
2184 the MSB of insn[0]. */
2191 if (irel->r_addend & RX_RELAXA_DSP6)
2196 if (code == 2 && symval/scale <= 255)
2198 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2201 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2202 if (newrel != ELF32_R_TYPE (srel->r_info))
2204 SNIP (3, 1, newrel);
2209 else if (code == 1 && symval == 0)
2212 SNIP (2, 1, R_RX_NONE);
2216 /* Special case DSP:5 format: MOV.bwl dsp:5[Rsrc],Rdst. */
2217 else if (code == 1 && symval/scale <= 31
2218 /* Decodable bits. */
2219 && (insn[0] & 0xcc) == 0xcc
2221 && (insn[0] & 0x30) != 0x30
2222 /* Register MSBs. */
2223 && (insn[1] & 0x88) == 0x00)
2227 insn[0] = 0x88 | (insn[0] & 0x30);
2228 /* The register fields are in the right place already. */
2230 /* We can't relax this new opcode. */
2233 switch ((insn[0] & 0x30) >> 4)
2236 newrel = R_RX_RH_ABS5p5B;
2239 newrel = R_RX_RH_ABS5p5W;
2242 newrel = R_RX_RH_ABS5p5L;
2246 move_reloc (irel, srel, -2);
2247 SNIP (2, 1, newrel);
2250 /* Special case DSP:5 format: MOVU.bw dsp:5[Rsrc],Rdst. */
2251 else if (code == 1 && symval/scale <= 31
2252 /* Decodable bits. */
2253 && (insn[0] & 0xf8) == 0x58
2254 /* Register MSBs. */
2255 && (insn[1] & 0x88) == 0x00)
2259 insn[0] = 0xb0 | ((insn[0] & 0x04) << 1);
2260 /* The register fields are in the right place already. */
2262 /* We can't relax this new opcode. */
2265 switch ((insn[0] & 0x08) >> 3)
2268 newrel = R_RX_RH_ABS5p5B;
2271 newrel = R_RX_RH_ABS5p5W;
2275 move_reloc (irel, srel, -2);
2276 SNIP (2, 1, newrel);
2280 /* A DSP4 operand always follows a DSP6 operand, even if there's
2281 no relocation for it. We have to read the code out of the
2282 opcode to calculate the offset of the operand. */
2283 if (irel->r_addend & RX_RELAXA_DSP4)
2285 int code6, offset = 0;
2289 code6 = insn[0] & 0x03;
2292 case 0: offset = 2; break;
2293 case 1: offset = 3; break;
2294 case 2: offset = 4; break;
2295 case 3: offset = 2; break;
2298 code = (insn[0] & 0x0c) >> 2;
2300 if (code == 2 && symval / scale <= 255)
2302 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2306 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2307 if (newrel != ELF32_R_TYPE (srel->r_info))
2309 SNIP (offset+1, 1, newrel);
2314 else if (code == 1 && symval == 0)
2317 SNIP (offset, 1, R_RX_NONE);
2320 /* Special case DSP:5 format: MOV.bwl Rsrc,dsp:5[Rdst] */
2321 else if (code == 1 && symval/scale <= 31
2322 /* Decodable bits. */
2323 && (insn[0] & 0xc3) == 0xc3
2325 && (insn[0] & 0x30) != 0x30
2326 /* Register MSBs. */
2327 && (insn[1] & 0x88) == 0x00)
2331 insn[0] = 0x80 | (insn[0] & 0x30);
2332 /* The register fields are in the right place already. */
2334 /* We can't relax this new opcode. */
2337 switch ((insn[0] & 0x30) >> 4)
2340 newrel = R_RX_RH_ABS5p5B;
2343 newrel = R_RX_RH_ABS5p5W;
2346 newrel = R_RX_RH_ABS5p5L;
2350 move_reloc (irel, srel, -2);
2351 SNIP (2, 1, newrel);
2355 /* These always occur alone, but the offset depends on whether
2356 it's a MEMEX opcode (0x06) or not. */
2357 if (irel->r_addend & RX_RELAXA_DSP14)
2362 if (insn[0] == 0x06)
2369 if (code == 2 && symval / scale <= 255)
2371 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2375 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2376 if (newrel != ELF32_R_TYPE (srel->r_info))
2378 SNIP (offset, 1, newrel);
2382 else if (code == 1 && symval == 0)
2385 SNIP (offset, 1, R_RX_NONE);
2396 /* These always occur alone. */
2397 if (irel->r_addend & RX_RELAXA_IMM6)
2403 /* These relocations sign-extend, so we must do signed compares. */
2404 ssymval = (long) symval;
2406 code = insn[0] & 0x03;
2408 if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608)
2410 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2414 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2415 if (newrel != ELF32_R_TYPE (srel->r_info))
2417 SNIP (2, 1, newrel);
2422 else if (code == 3 && ssymval <= 32767 && ssymval >= -32768)
2424 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2428 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2429 if (newrel != ELF32_R_TYPE (srel->r_info))
2431 SNIP (2, 1, newrel);
2436 /* Special case UIMM8 format: CMP #uimm8,Rdst. */
2437 else if (code == 2 && ssymval <= 255 && ssymval >= 16
2438 /* Decodable bits. */
2439 && (insn[0] & 0xfc) == 0x74
2440 /* Decodable bits. */
2441 && ((insn[1] & 0xf0) == 0x00))
2446 insn[1] = 0x50 | (insn[1] & 0x0f);
2448 /* We can't relax this new opcode. */
2451 if (STACK_REL_P (ELF32_R_TYPE (srel->r_info)))
2452 newrel = R_RX_ABS8U;
2454 newrel = R_RX_DIR8U;
2456 SNIP (2, 1, newrel);
2460 else if (code == 2 && ssymval <= 127 && ssymval >= -128)
2462 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2466 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2467 if (newrel != ELF32_R_TYPE (srel->r_info))
2469 SNIP (2, 1, newrel);
2474 /* Special case UIMM4 format: CMP, MUL, AND, OR. */
2475 else if (code == 1 && ssymval <= 15 && ssymval >= 0
2476 /* Decodable bits and immediate type. */
2478 /* Decodable bits. */
2479 && (insn[1] & 0xc0) == 0x00)
2481 static const int newop[4] = { 1, 3, 4, 5 };
2483 insn[0] = 0x60 | newop[insn[1] >> 4];
2484 /* The register number doesn't move. */
2486 /* We can't relax this new opcode. */
2489 move_reloc (irel, srel, -1);
2491 SNIP (2, 1, R_RX_RH_UIMM4p8);
2495 /* Special case UIMM4 format: ADD -> ADD/SUB. */
2496 else if (code == 1 && ssymval <= 15 && ssymval >= -15
2497 /* Decodable bits and immediate type. */
2499 /* Same register for source and destination. */
2500 && ((insn[1] >> 4) == (insn[1] & 0x0f)))
2504 /* Note that we can't turn "add $0,Rs" into a NOP
2505 because the flags need to be set right. */
2509 insn[0] = 0x60; /* Subtract. */
2510 newrel = R_RX_RH_UNEG4p8;
2514 insn[0] = 0x62; /* Add. */
2515 newrel = R_RX_RH_UIMM4p8;
2518 /* The register number is in the right place. */
2520 /* We can't relax this new opcode. */
2523 move_reloc (irel, srel, -1);
2525 SNIP (2, 1, newrel);
2530 /* These are either matched with a DSP6 (2-byte base) or an id24
2532 if (irel->r_addend & RX_RELAXA_IMM12)
2534 int dspcode, offset = 0;
2539 if ((insn[0] & 0xfc) == 0xfc)
2540 dspcode = 1; /* Just something with one byte operand. */
2542 dspcode = insn[0] & 3;
2545 case 0: offset = 2; break;
2546 case 1: offset = 3; break;
2547 case 2: offset = 4; break;
2548 case 3: offset = 2; break;
2551 /* These relocations sign-extend, so we must do signed compares. */
2552 ssymval = (long) symval;
2554 code = (insn[1] >> 2) & 3;
2555 if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608)
2557 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2561 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2562 if (newrel != ELF32_R_TYPE (srel->r_info))
2564 SNIP (offset, 1, newrel);
2569 else if (code == 3 && ssymval <= 32767 && ssymval >= -32768)
2571 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2575 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2576 if (newrel != ELF32_R_TYPE (srel->r_info))
2578 SNIP (offset, 1, newrel);
2583 /* Special case UIMM8 format: MOV #uimm8,Rdst. */
2584 else if (code == 2 && ssymval <= 255 && ssymval >= 16
2585 /* Decodable bits. */
2587 /* Decodable bits. */
2588 && ((insn[1] & 0x03) == 0x02))
2593 insn[1] = 0x40 | (insn[1] >> 4);
2595 /* We can't relax this new opcode. */
2598 if (STACK_REL_P (ELF32_R_TYPE (srel->r_info)))
2599 newrel = R_RX_ABS8U;
2601 newrel = R_RX_DIR8U;
2603 SNIP (2, 1, newrel);
2607 else if (code == 2 && ssymval <= 127 && ssymval >= -128)
2609 unsigned int newrel = ELF32_R_TYPE(srel->r_info);
2613 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2614 if (newrel != ELF32_R_TYPE(srel->r_info))
2616 SNIP (offset, 1, newrel);
2621 /* Special case UIMM4 format: MOV #uimm4,Rdst. */
2622 else if (code == 1 && ssymval <= 15 && ssymval >= 0
2623 /* Decodable bits. */
2625 /* Decodable bits. */
2626 && ((insn[1] & 0x03) == 0x02))
2629 insn[1] = insn[1] >> 4;
2631 /* We can't relax this new opcode. */
2634 move_reloc (irel, srel, -1);
2636 SNIP (2, 1, R_RX_RH_UIMM4p8);
2641 if (irel->r_addend & RX_RELAXA_BRA)
2643 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2645 int alignment_glue = 0;
2649 /* Branches over alignment chunks are problematic, as
2650 deleting bytes here makes the branch *further* away. We
2651 can be agressive with branches within this alignment
2652 block, but not branches outside it. */
2653 if ((prev_alignment == NULL
2654 || symval < (bfd_vma)(sec_start + prev_alignment->r_offset))
2655 && (next_alignment == NULL
2656 || symval > (bfd_vma)(sec_start + next_alignment->r_offset)))
2657 alignment_glue = section_alignment_glue;
2659 if (ELF32_R_TYPE(srel[1].r_info) == R_RX_RH_RELAX
2660 && srel[1].r_addend & RX_RELAXA_BRA
2661 && srel[1].r_offset < irel->r_offset + pcrel)
2664 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2666 /* The values we compare PCREL with are not what you'd
2667 expect; they're off by a little to compensate for (1)
2668 where the reloc is relative to the insn, and (2) how much
2669 the insn is going to change when we relax it. */
2671 /* These we have to decode. */
2674 case 0x04: /* BRA pcdsp:24 */
2675 if (-32768 + alignment_glue <= pcrel
2676 && pcrel <= 32765 - alignment_glue)
2679 SNIP (3, 1, newrel);
2684 case 0x38: /* BRA pcdsp:16 */
2685 if (-128 + alignment_glue <= pcrel
2686 && pcrel <= 127 - alignment_glue)
2689 SNIP (2, 1, newrel);
2694 case 0x2e: /* BRA pcdsp:8 */
2695 /* Note that there's a risk here of shortening things so
2696 much that we no longer fit this reloc; it *should*
2697 only happen when you branch across a branch, and that
2698 branch also devolves into BRA.S. "Real" code should
2700 if (max_pcrel3 + alignment_glue <= pcrel
2701 && pcrel <= 10 - alignment_glue
2705 SNIP (1, 1, newrel);
2706 move_reloc (irel, srel, -1);
2711 case 0x05: /* BSR pcdsp:24 */
2712 if (-32768 + alignment_glue <= pcrel
2713 && pcrel <= 32765 - alignment_glue)
2716 SNIP (1, 1, newrel);
2721 case 0x3a: /* BEQ.W pcdsp:16 */
2722 case 0x3b: /* BNE.W pcdsp:16 */
2723 if (-128 + alignment_glue <= pcrel
2724 && pcrel <= 127 - alignment_glue)
2726 insn[0] = 0x20 | (insn[0] & 1);
2727 SNIP (1, 1, newrel);
2732 case 0x20: /* BEQ.B pcdsp:8 */
2733 case 0x21: /* BNE.B pcdsp:8 */
2734 if (max_pcrel3 + alignment_glue <= pcrel
2735 && pcrel - alignment_glue <= 10
2738 insn[0] = 0x10 | ((insn[0] & 1) << 3);
2739 SNIP (1, 1, newrel);
2740 move_reloc (irel, srel, -1);
2745 case 0x16: /* synthetic BNE dsp24 */
2746 case 0x1e: /* synthetic BEQ dsp24 */
2747 if (-32767 + alignment_glue <= pcrel
2748 && pcrel <= 32766 - alignment_glue
2751 if (insn[0] == 0x16)
2755 /* We snip out the bytes at the end else the reloc
2756 will get moved too, and too much. */
2757 SNIP (3, 2, newrel);
2758 move_reloc (irel, srel, -1);
2764 /* Special case - synthetic conditional branches, pcrel24.
2765 Note that EQ and NE have been handled above. */
2766 if ((insn[0] & 0xf0) == 0x20
2769 && srel->r_offset != irel->r_offset + 1
2770 && -32767 + alignment_glue <= pcrel
2771 && pcrel <= 32766 - alignment_glue)
2775 SNIP (5, 1, newrel);
2779 /* Special case - synthetic conditional branches, pcrel16 */
2780 if ((insn[0] & 0xf0) == 0x20
2783 && srel->r_offset != irel->r_offset + 1
2784 && -127 + alignment_glue <= pcrel
2785 && pcrel <= 126 - alignment_glue)
2787 int cond = (insn[0] & 0x0f) ^ 0x01;
2789 insn[0] = 0x20 | cond;
2790 /* By moving the reloc first, we avoid having
2791 delete_bytes move it also. */
2792 move_reloc (irel, srel, -2);
2793 SNIP (2, 3, newrel);
2798 BFD_ASSERT (nrelocs == 0);
2800 /* Special case - check MOV.bwl #IMM, dsp[reg] and see if we can
2801 use MOV.bwl #uimm:8, dsp:5[r7] format. This is tricky
2802 because it may have one or two relocations. */
2803 if ((insn[0] & 0xfc) == 0xf8
2804 && (insn[1] & 0x80) == 0x00
2805 && (insn[0] & 0x03) != 0x03)
2807 int dcode, icode, reg, ioff, dscale, ilen;
2808 bfd_vma disp_val = 0;
2810 Elf_Internal_Rela * disp_rel = 0;
2811 Elf_Internal_Rela * imm_rel = 0;
2816 dcode = insn[0] & 0x03;
2817 icode = (insn[1] >> 2) & 0x03;
2818 reg = (insn[1] >> 4) & 0x0f;
2820 ioff = dcode == 1 ? 3 : dcode == 2 ? 4 : 2;
2822 /* Figure out what the dispacement is. */
2823 if (dcode == 1 || dcode == 2)
2825 /* There's a displacement. See if there's a reloc for it. */
2826 if (srel[1].r_offset == irel->r_offset + 2)
2838 #if RX_OPCODE_BIG_ENDIAN
2839 disp_val = insn[2] * 256 + insn[3];
2841 disp_val = insn[2] + insn[3] * 256;
2844 switch (insn[1] & 3)
2860 /* Figure out what the immediate is. */
2861 if (srel[1].r_offset == irel->r_offset + ioff)
2864 imm_val = (long) symval;
2869 unsigned char * ip = insn + ioff;
2874 /* For byte writes, we don't sign extend. Makes the math easier later. */
2878 imm_val = (char) ip[0];
2881 #if RX_OPCODE_BIG_ENDIAN
2882 imm_val = ((char) ip[0] << 8) | ip[1];
2884 imm_val = ((char) ip[1] << 8) | ip[0];
2888 #if RX_OPCODE_BIG_ENDIAN
2889 imm_val = ((char) ip[0] << 16) | (ip[1] << 8) | ip[2];
2891 imm_val = ((char) ip[2] << 16) | (ip[1] << 8) | ip[0];
2895 #if RX_OPCODE_BIG_ENDIAN
2896 imm_val = (ip[0] << 24) | (ip[1] << 16) | (ip[2] << 8) | ip[3];
2898 imm_val = (ip[3] << 24) | (ip[2] << 16) | (ip[1] << 8) | ip[0];
2932 /* The shortcut happens when the immediate is 0..255,
2933 register r0 to r7, and displacement (scaled) 0..31. */
2935 if (0 <= imm_val && imm_val <= 255
2936 && 0 <= reg && reg <= 7
2937 && disp_val / dscale <= 31)
2939 insn[0] = 0x3c | (insn[1] & 0x03);
2940 insn[1] = (((disp_val / dscale) << 3) & 0x80) | (reg << 4) | ((disp_val/dscale) & 0x0f);
2945 int newrel = R_RX_NONE;
2950 newrel = R_RX_RH_ABS5p8B;
2953 newrel = R_RX_RH_ABS5p8W;
2956 newrel = R_RX_RH_ABS5p8L;
2959 disp_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (disp_rel->r_info), newrel);
2960 move_reloc (irel, disp_rel, -1);
2964 imm_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (imm_rel->r_info), R_RX_DIR8U);
2965 move_reloc (disp_rel ? disp_rel : irel,
2967 irel->r_offset - imm_rel->r_offset + 2);
2970 SNIPNR (3, ilen - 3);
2973 /* We can't relax this new opcode. */
2979 /* We can't reliably relax branches to DIR3U_PCREL unless we know
2980 whatever they're branching over won't shrink any more. If we're
2981 basically done here, do one more pass just for branches - but
2982 don't request a pass after that one! */
2983 if (!*again && !allow_pcrel3)
2985 bfd_boolean ignored;
2987 elf32_rx_relax_section (abfd, sec, link_info, &ignored, TRUE);
2993 if (free_relocs != NULL)
2996 if (free_contents != NULL)
2997 free (free_contents);
2999 if (shndx_buf != NULL)
3001 shndx_hdr->contents = NULL;
3005 if (free_intsyms != NULL)
3006 free (free_intsyms);
3012 elf32_rx_relax_section_wrapper (bfd * abfd,
3014 struct bfd_link_info * link_info,
3015 bfd_boolean * again)
3017 return elf32_rx_relax_section (abfd, sec, link_info, again, FALSE);
3020 /* Function to set the ELF flag bits. */
3023 rx_elf_set_private_flags (bfd * abfd, flagword flags)
3025 elf_elfheader (abfd)->e_flags = flags;
3026 elf_flags_init (abfd) = TRUE;
3030 static bfd_boolean no_warn_mismatch = FALSE;
3031 static bfd_boolean ignore_lma = TRUE;
3033 void bfd_elf32_rx_set_target_flags (bfd_boolean, bfd_boolean);
3036 bfd_elf32_rx_set_target_flags (bfd_boolean user_no_warn_mismatch,
3037 bfd_boolean user_ignore_lma)
3039 no_warn_mismatch = user_no_warn_mismatch;
3040 ignore_lma = user_ignore_lma;
3043 /* Converts FLAGS into a descriptive string.
3044 Returns a static pointer. */
3047 describe_flags (flagword flags)
3049 static char buf [128];
3053 if (flags & E_FLAG_RX_64BIT_DOUBLES)
3054 strcat (buf, "64-bit doubles");
3056 strcat (buf, "32-bit doubles");
3058 if (flags & E_FLAG_RX_DSP)
3059 strcat (buf, ", dsp");
3061 strcat (buf, ", no dsp");
3063 if (flags & E_FLAG_RX_PID)
3064 strcat (buf, ", pid");
3066 strcat (buf, ", no pid");
3068 if (flags & E_FLAG_RX_ABI)
3069 strcat (buf, ", RX ABI");
3071 strcat (buf, ", GCC ABI");
3076 /* Merge backend specific data from an object file to the output
3077 object file when linking. */
3080 rx_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
3084 bfd_boolean error = FALSE;
3086 new_flags = elf_elfheader (ibfd)->e_flags;
3087 old_flags = elf_elfheader (obfd)->e_flags;
3089 if (!elf_flags_init (obfd))
3091 /* First call, no flags set. */
3092 elf_flags_init (obfd) = TRUE;
3093 elf_elfheader (obfd)->e_flags = new_flags;
3095 else if (old_flags != new_flags)
3097 flagword known_flags;
3099 known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES
3100 | E_FLAG_RX_DSP | E_FLAG_RX_PID;
3102 if ((old_flags ^ new_flags) & known_flags)
3104 /* Only complain if flag bits we care about do not match.
3105 Other bits may be set, since older binaries did use some
3106 deprecated flags. */
3107 if (no_warn_mismatch)
3109 elf_elfheader (obfd)->e_flags = (new_flags | old_flags) & known_flags;
3113 _bfd_error_handler ("There is a conflict merging the ELF header flags from %s",
3114 bfd_get_filename (ibfd));
3115 _bfd_error_handler (" the input file's flags: %s",
3116 describe_flags (new_flags));
3117 _bfd_error_handler (" the output file's flags: %s",
3118 describe_flags (old_flags));
3123 elf_elfheader (obfd)->e_flags = new_flags & known_flags;
3127 bfd_set_error (bfd_error_bad_value);
3133 rx_elf_print_private_bfd_data (bfd * abfd, void * ptr)
3135 FILE * file = (FILE *) ptr;
3138 BFD_ASSERT (abfd != NULL && ptr != NULL);
3140 /* Print normal ELF private data. */
3141 _bfd_elf_print_private_bfd_data (abfd, ptr);
3143 flags = elf_elfheader (abfd)->e_flags;
3144 fprintf (file, _("private flags = 0x%lx:"), (long) flags);
3146 fprintf (file, "%s", describe_flags (flags));
3150 /* Return the MACH for an e_flags value. */
3153 elf32_rx_machine (bfd * abfd ATTRIBUTE_UNUSED)
3155 #if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_...
3156 Need to sort out how these flag bits are used.
3157 For now we assume that the flags are OK. */
3158 if ((elf_elfheader (abfd)->e_flags & EF_RX_CPU_MASK) == EF_RX_CPU_RX)
3166 rx_elf_object_p (bfd * abfd)
3170 Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr;
3171 int nphdrs = elf_elfheader (abfd)->e_phnum;
3173 static int saw_be = FALSE;
3175 /* We never want to automatically choose the non-swapping big-endian
3176 target. The user can only get that explicitly, such as with -I
3178 if (abfd->xvec == &rx_elf32_be_ns_vec
3179 && abfd->target_defaulted)
3182 /* BFD->target_defaulted is not set to TRUE when a target is chosen
3183 as a fallback, so we check for "scanning" to know when to stop
3184 using the non-swapping target. */
3185 if (abfd->xvec == &rx_elf32_be_ns_vec
3188 if (abfd->xvec == &rx_elf32_be_vec)
3191 bfd_default_set_arch_mach (abfd, bfd_arch_rx,
3192 elf32_rx_machine (abfd));
3194 /* For each PHDR in the object, we must find some section that
3195 corresponds (based on matching file offsets) and use its VMA
3196 information to reconstruct the p_vaddr field we clobbered when we
3198 for (i=0; i<nphdrs; i++)
3200 for (u=0; u<elf_tdata(abfd)->num_elf_sections; u++)
3202 Elf_Internal_Shdr *sec = elf_tdata(abfd)->elf_sect_ptr[u];
3204 if (phdr[i].p_filesz
3205 && phdr[i].p_offset <= (bfd_vma) sec->sh_offset
3206 && (bfd_vma)sec->sh_offset <= phdr[i].p_offset + (phdr[i].p_filesz - 1))
3208 /* Found one! The difference between the two addresses,
3209 plus the difference between the two file offsets, is
3210 enough information to reconstruct the lma. */
3212 /* Example where they aren't:
3213 PHDR[1] = lma fffc0100 offset 00002010 size 00000100
3214 SEC[6] = vma 00000050 offset 00002050 size 00000040
3216 The correct LMA for the section is fffc0140 + (2050-2010).
3219 phdr[i].p_vaddr = sec->sh_addr + (sec->sh_offset - phdr[i].p_offset);
3224 /* We must update the bfd sections as well, so we don't stop
3226 bsec = abfd->sections;
3229 if (phdr[i].p_filesz
3230 && phdr[i].p_vaddr <= bsec->vma
3231 && bsec->vma <= phdr[i].p_vaddr + (phdr[i].p_filesz - 1))
3233 bsec->lma = phdr[i].p_paddr + (bsec->vma - phdr[i].p_vaddr);
3245 rx_dump_symtab (bfd * abfd, void * internal_syms, void * external_syms)
3248 Elf_Internal_Sym * isymbuf;
3249 Elf_Internal_Sym * isymend;
3250 Elf_Internal_Sym * isym;
3251 Elf_Internal_Shdr * symtab_hdr;
3252 bfd_boolean free_internal = FALSE, free_external = FALSE;
3254 char * st_info_stb_str;
3255 char * st_other_str;
3256 char * st_shndx_str;
3258 if (! internal_syms)
3260 internal_syms = bfd_malloc (1000);
3263 if (! external_syms)
3265 external_syms = bfd_malloc (1000);
3269 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3270 locsymcount = symtab_hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
3272 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3273 symtab_hdr->sh_info, 0,
3274 internal_syms, external_syms, NULL);
3276 isymbuf = internal_syms;
3277 isymend = isymbuf + locsymcount;
3279 for (isym = isymbuf ; isym < isymend ; isym++)
3281 switch (ELF_ST_TYPE (isym->st_info))
3283 case STT_FUNC: st_info_str = "STT_FUNC"; break;
3284 case STT_SECTION: st_info_str = "STT_SECTION"; break;
3285 case STT_FILE: st_info_str = "STT_FILE"; break;
3286 case STT_OBJECT: st_info_str = "STT_OBJECT"; break;
3287 case STT_TLS: st_info_str = "STT_TLS"; break;
3288 default: st_info_str = "";
3290 switch (ELF_ST_BIND (isym->st_info))
3292 case STB_LOCAL: st_info_stb_str = "STB_LOCAL"; break;
3293 case STB_GLOBAL: st_info_stb_str = "STB_GLOBAL"; break;
3294 default: st_info_stb_str = "";
3296 switch (ELF_ST_VISIBILITY (isym->st_other))
3298 case STV_DEFAULT: st_other_str = "STV_DEFAULT"; break;
3299 case STV_INTERNAL: st_other_str = "STV_INTERNAL"; break;
3300 case STV_PROTECTED: st_other_str = "STV_PROTECTED"; break;
3301 default: st_other_str = "";
3303 switch (isym->st_shndx)
3305 case SHN_ABS: st_shndx_str = "SHN_ABS"; break;
3306 case SHN_COMMON: st_shndx_str = "SHN_COMMON"; break;
3307 case SHN_UNDEF: st_shndx_str = "SHN_UNDEF"; break;
3308 default: st_shndx_str = "";
3311 printf ("isym = %p st_value = %lx st_size = %lx st_name = (%lu) %s "
3312 "st_info = (%d) %s %s st_other = (%d) %s st_shndx = (%d) %s\n",
3314 (unsigned long) isym->st_value,
3315 (unsigned long) isym->st_size,
3317 bfd_elf_string_from_elf_section (abfd, symtab_hdr->sh_link,
3319 isym->st_info, st_info_str, st_info_stb_str,
3320 isym->st_other, st_other_str,
3321 isym->st_shndx, st_shndx_str);
3324 free (internal_syms);
3326 free (external_syms);
3330 rx_get_reloc (long reloc)
3332 if (0 <= reloc && reloc < R_RX_max)
3333 return rx_elf_howto_table[reloc].name;
3339 /* We must take care to keep the on-disk copy of any code sections
3340 that are fully linked swapped if the target is big endian, to match
3341 the Renesas tools. */
3343 /* The rule is: big endian object that are final-link executables,
3344 have code sections stored with 32-bit words swapped relative to
3345 what you'd get by default. */
3348 rx_get_section_contents (bfd * abfd,
3352 bfd_size_type count)
3354 int exec = (abfd->flags & EXEC_P) ? 1 : 0;
3355 int s_code = (section->flags & SEC_CODE) ? 1 : 0;
3359 fprintf (stderr, "dj: get %ld %ld from %s %s e%d sc%d %08lx:%08lx\n",
3360 (long) offset, (long) count, section->name,
3361 bfd_big_endian(abfd) ? "be" : "le",
3362 exec, s_code, (long unsigned) section->filepos,
3363 (long unsigned) offset);
3366 if (exec && s_code && bfd_big_endian (abfd))
3368 char * cloc = (char *) location;
3369 bfd_size_type cnt, end_cnt;
3373 /* Fetch and swap unaligned bytes at the beginning. */
3378 rv = _bfd_generic_get_section_contents (abfd, section, buf,
3383 bfd_putb32 (bfd_getl32 (buf), buf);
3385 cnt = 4 - (offset % 4);
3389 memcpy (location, buf + (offset % 4), cnt);
3396 end_cnt = count % 4;
3398 /* Fetch and swap the middle bytes. */
3401 rv = _bfd_generic_get_section_contents (abfd, section, cloc, offset,
3406 for (cnt = count; cnt >= 4; cnt -= 4, cloc += 4)
3407 bfd_putb32 (bfd_getl32 (cloc), cloc);
3410 /* Fetch and swap the end bytes. */
3415 /* Fetch the end bytes. */
3416 rv = _bfd_generic_get_section_contents (abfd, section, buf,
3417 offset + count - end_cnt, 4);
3421 bfd_putb32 (bfd_getl32 (buf), buf);
3422 memcpy (cloc, buf, end_cnt);
3426 rv = _bfd_generic_get_section_contents (abfd, section, location, offset, count);
3433 rx2_set_section_contents (bfd * abfd,
3435 const void * location,
3437 bfd_size_type count)
3441 fprintf (stderr, " set sec %s %08x loc %p offset %#x count %#x\n",
3442 section->name, (unsigned) section->vma, location, (int) offset, (int) count);
3443 for (i = 0; i < count; i++)
3445 if (i % 16 == 0 && i > 0)
3446 fprintf (stderr, "\n");
3448 if (i % 16 && i % 4 == 0)
3449 fprintf (stderr, " ");
3452 fprintf (stderr, " %08x:", (int) (section->vma + offset + i));
3454 fprintf (stderr, " %02x", ((unsigned char *) location)[i]);
3456 fprintf (stderr, "\n");
3458 return _bfd_elf_set_section_contents (abfd, section, location, offset, count);
3460 #define _bfd_elf_set_section_contents rx2_set_section_contents
3464 rx_set_section_contents (bfd * abfd,
3466 const void * location,
3468 bfd_size_type count)
3470 bfd_boolean exec = (abfd->flags & EXEC_P) ? TRUE : FALSE;
3471 bfd_boolean s_code = (section->flags & SEC_CODE) ? TRUE : FALSE;
3473 char * swapped_data = NULL;
3475 bfd_vma caddr = section->vma + offset;
3477 bfd_size_type scount;
3482 fprintf (stderr, "\ndj: set %ld %ld to %s %s e%d sc%d\n",
3483 (long) offset, (long) count, section->name,
3484 bfd_big_endian (abfd) ? "be" : "le",
3487 for (i = 0; i < count; i++)
3489 int a = section->vma + offset + i;
3491 if (a % 16 == 0 && a > 0)
3492 fprintf (stderr, "\n");
3494 if (a % 16 && a % 4 == 0)
3495 fprintf (stderr, " ");
3497 if (a % 16 == 0 || i == 0)
3498 fprintf (stderr, " %08x:", (int) (section->vma + offset + i));
3500 fprintf (stderr, " %02x", ((unsigned char *) location)[i]);
3503 fprintf (stderr, "\n");
3506 if (! exec || ! s_code || ! bfd_big_endian (abfd))
3507 return _bfd_elf_set_section_contents (abfd, section, location, offset, count);
3509 while (count > 0 && caddr > 0 && caddr % 4)
3513 case 0: faddr = offset + 3; break;
3514 case 1: faddr = offset + 1; break;
3515 case 2: faddr = offset - 1; break;
3516 case 3: faddr = offset - 3; break;
3519 rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1);
3529 scount = (int)(count / 4) * 4;
3532 char * cloc = (char *) location;
3534 swapped_data = (char *) bfd_alloc (abfd, count);
3536 for (i = 0; i < count; i += 4)
3538 bfd_vma v = bfd_getl32 (cloc + i);
3539 bfd_putb32 (v, swapped_data + i);
3542 rv = _bfd_elf_set_section_contents (abfd, section, swapped_data, offset, scount);
3554 caddr = section->vma + offset;
3559 case 0: faddr = offset + 3; break;
3560 case 1: faddr = offset + 1; break;
3561 case 2: faddr = offset - 1; break;
3562 case 3: faddr = offset - 3; break;
3564 rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1);
3579 rx_final_link (bfd * abfd, struct bfd_link_info * info)
3583 for (o = abfd->sections; o != NULL; o = o->next)
3586 fprintf (stderr, "sec %s fl %x vma %lx lma %lx size %lx raw %lx\n",
3587 o->name, o->flags, o->vma, o->lma, o->size, o->rawsize);
3589 if (o->flags & SEC_CODE
3590 && bfd_big_endian (abfd)
3594 fprintf (stderr, "adjusting...\n");
3596 o->size += 4 - (o->size % 4);
3600 return bfd_elf_final_link (abfd, info);
3604 elf32_rx_modify_program_headers (bfd * abfd ATTRIBUTE_UNUSED,
3605 struct bfd_link_info * info ATTRIBUTE_UNUSED)
3607 const struct elf_backend_data * bed;
3608 struct elf_obj_tdata * tdata;
3609 Elf_Internal_Phdr * phdr;
3613 bed = get_elf_backend_data (abfd);
3614 tdata = elf_tdata (abfd);
3616 count = elf_program_header_size (abfd) / bed->s->sizeof_phdr;
3619 for (i = count; i-- != 0;)
3620 if (phdr[i].p_type == PT_LOAD)
3622 /* The Renesas tools expect p_paddr to be zero. However,
3623 there is no other way to store the writable data in ROM for
3624 startup initialization. So, we let the linker *think*
3625 we're using paddr and vaddr the "usual" way, but at the
3626 last minute we move the paddr into the vaddr (which is what
3627 the simulator uses) and zero out paddr. Note that this
3628 does not affect the section headers, just the program
3629 headers. We hope. */
3630 phdr[i].p_vaddr = phdr[i].p_paddr;
3631 #if 0 /* If we zero out p_paddr, then the LMA in the section table
3633 phdr[i].p_paddr = 0;
3640 /* The default literal sections should always be marked as "code" (i.e.,
3641 SHF_EXECINSTR). This is particularly important for big-endian mode
3642 when we do not want their contents byte reversed. */
3643 static const struct bfd_elf_special_section elf32_rx_special_sections[] =
3645 { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3646 { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3647 { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3648 { NULL, 0, 0, 0, 0 }
3653 struct bfd_link_info *info;
3654 bfd_vma table_start;
3656 bfd_vma *table_handlers;
3657 bfd_vma table_default_handler;
3658 struct bfd_link_hash_entry **table_entries;
3659 struct bfd_link_hash_entry *table_default_entry;
3664 rx_table_find (struct bfd_hash_entry *vent, void *vinfo)
3666 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3667 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3668 const char *name; /* of the symbol we've found */
3672 const char *tname; /* name of the table */
3673 bfd_vma start_addr, end_addr;
3675 struct bfd_link_hash_entry * h;
3677 /* We're looking for globally defined symbols of the form
3678 $tablestart$<NAME>. */
3679 if (ent->type != bfd_link_hash_defined
3680 && ent->type != bfd_link_hash_defweak)
3683 name = ent->root.string;
3684 sec = ent->u.def.section;
3687 if (strncmp (name, "$tablestart$", 12))
3690 sec->flags |= SEC_KEEP;
3694 start_addr = ent->u.def.value;
3696 /* At this point, we can't build the table but we can (and must)
3697 find all the related symbols and mark their sections as SEC_KEEP
3698 so we don't garbage collect them. */
3700 buf = (char *) malloc (12 + 10 + strlen (tname));
3702 sprintf (buf, "$tableend$%s", tname);
3703 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3704 if (!h || (h->type != bfd_link_hash_defined
3705 && h->type != bfd_link_hash_defweak))
3707 _bfd_error_handler (_("%B:%A: table %s missing corresponding %s"),
3708 abfd, sec, name, buf);
3712 if (h->u.def.section != ent->u.def.section)
3714 _bfd_error_handler (_("%B:%A: %s and %s must be in the same input section"),
3715 h->u.def.section->owner, h->u.def.section,
3720 end_addr = h->u.def.value;
3722 sprintf (buf, "$tableentry$default$%s", tname);
3723 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3724 if (h && (h->type == bfd_link_hash_defined
3725 || h->type == bfd_link_hash_defweak))
3727 h->u.def.section->flags |= SEC_KEEP;
3730 for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++)
3732 sprintf (buf, "$tableentry$%d$%s", idx, tname);
3733 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3734 if (h && (h->type == bfd_link_hash_defined
3735 || h->type == bfd_link_hash_defweak))
3737 h->u.def.section->flags |= SEC_KEEP;
3741 /* Return TRUE to keep scanning, FALSE to end the traversal. */
3745 /* We need to check for table entry symbols and build the tables, and
3746 we need to do it before the linker does garbage collection. This function is
3747 called once per input object file. */
3750 (bfd * abfd ATTRIBUTE_UNUSED,
3751 struct bfd_link_info * info ATTRIBUTE_UNUSED)
3753 RX_Table_Info stuff;
3757 bfd_hash_traverse (&(info->hash->table), rx_table_find, &stuff);
3764 rx_table_map_2 (struct bfd_hash_entry *vent, void *vinfo)
3766 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3767 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3772 /* See if the symbol ENT has an address listed in the table, and
3773 isn't a debug/special symbol. If so, put it in the table. */
3775 if (ent->type != bfd_link_hash_defined
3776 && ent->type != bfd_link_hash_defweak)
3779 name = ent->root.string;
3781 if (name[0] == '$' || name[0] == '.' || name[0] < ' ')
3784 addr = (ent->u.def.value
3785 + ent->u.def.section->output_section->vma
3786 + ent->u.def.section->output_offset);
3788 for (idx = 0; idx < info->table_size; idx ++)
3789 if (addr == info->table_handlers[idx])
3790 info->table_entries[idx] = ent;
3792 if (addr == info->table_default_handler)
3793 info->table_default_entry = ent;
3799 rx_table_map (struct bfd_hash_entry *vent, void *vinfo)
3801 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3802 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3803 const char *name; /* of the symbol we've found */
3805 const char *tname; /* name of the table */
3806 bfd_vma start_addr, end_addr;
3808 struct bfd_link_hash_entry * h;
3811 /* We're looking for globally defined symbols of the form
3812 $tablestart$<NAME>. */
3813 if (ent->type != bfd_link_hash_defined
3814 && ent->type != bfd_link_hash_defweak)
3817 name = ent->root.string;
3819 if (strncmp (name, "$tablestart$", 12))
3823 start_addr = (ent->u.def.value
3824 + ent->u.def.section->output_section->vma
3825 + ent->u.def.section->output_offset);
3827 buf = (char *) malloc (12 + 10 + strlen (tname));
3829 sprintf (buf, "$tableend$%s", tname);
3830 end_addr = get_symbol_value_maybe (buf, info->info);
3832 sprintf (buf, "$tableentry$default$%s", tname);
3833 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3836 info->table_default_handler = (h->u.def.value
3837 + h->u.def.section->output_section->vma
3838 + h->u.def.section->output_offset);
3841 /* Zero is a valid handler address! */
3842 info->table_default_handler = (bfd_vma) (-1);
3843 info->table_default_entry = NULL;
3845 info->table_start = start_addr;
3846 info->table_size = (int) (end_addr - start_addr) / 4;
3847 info->table_handlers = (bfd_vma *) malloc (info->table_size * sizeof (bfd_vma));
3848 info->table_entries = (struct bfd_link_hash_entry **) malloc (info->table_size * sizeof (struct bfd_link_hash_entry));
3850 for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++)
3852 sprintf (buf, "$tableentry$%d$%s", idx, tname);
3853 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3854 if (h && (h->type == bfd_link_hash_defined
3855 || h->type == bfd_link_hash_defweak))
3857 info->table_handlers[idx] = (h->u.def.value
3858 + h->u.def.section->output_section->vma
3859 + h->u.def.section->output_offset);
3862 info->table_handlers[idx] = info->table_default_handler;
3863 info->table_entries[idx] = NULL;
3868 bfd_hash_traverse (&(info->info->hash->table), rx_table_map_2, info);
3870 fprintf (info->mapfile, "\nRX Vector Table: %s has %d entries at 0x%08" BFD_VMA_FMT "x\n\n",
3871 tname, info->table_size, start_addr);
3873 if (info->table_default_entry)
3874 fprintf (info->mapfile, " default handler is: %s at 0x%08" BFD_VMA_FMT "x\n",
3875 info->table_default_entry->root.string,
3876 info->table_default_handler);
3877 else if (info->table_default_handler != (bfd_vma)(-1))
3878 fprintf (info->mapfile, " default handler is at 0x%08" BFD_VMA_FMT "x\n",
3879 info->table_default_handler);
3881 fprintf (info->mapfile, " no default handler\n");
3884 for (idx = 0; idx < info->table_size; idx ++)
3886 if (info->table_handlers[idx] == info->table_default_handler)
3889 fprintf (info->mapfile, " . . .\n");
3895 fprintf (info->mapfile, " 0x%08" BFD_VMA_FMT "x [%3d] ", start_addr + 4 * idx, idx);
3897 if (info->table_handlers[idx] == (bfd_vma) (-1))
3898 fprintf (info->mapfile, "(no handler found)\n");
3900 else if (info->table_handlers[idx] == info->table_default_handler)
3902 if (info->table_default_entry)
3903 fprintf (info->mapfile, "(default)\n");
3905 fprintf (info->mapfile, "(default)\n");
3908 else if (info->table_entries[idx])
3910 fprintf (info->mapfile, "0x%08" BFD_VMA_FMT "x %s\n", info->table_handlers[idx], info->table_entries[idx]->root.string);
3915 fprintf (info->mapfile, "0x%08" BFD_VMA_FMT "x ???\n", info->table_handlers[idx]);
3919 fprintf (info->mapfile, " . . .\n");
3925 rx_additional_link_map_text (bfd *obfd, struct bfd_link_info *info, FILE *mapfile)
3927 /* We scan the symbol table looking for $tableentry$'s, and for
3928 each, try to deduce which handlers go with which entries. */
3930 RX_Table_Info stuff;
3934 stuff.mapfile = mapfile;
3935 bfd_hash_traverse (&(info->hash->table), rx_table_map, &stuff);
3939 #define ELF_ARCH bfd_arch_rx
3940 #define ELF_MACHINE_CODE EM_RX
3941 #define ELF_MAXPAGESIZE 0x1000
3943 #define TARGET_BIG_SYM rx_elf32_be_vec
3944 #define TARGET_BIG_NAME "elf32-rx-be"
3946 #define TARGET_LITTLE_SYM rx_elf32_le_vec
3947 #define TARGET_LITTLE_NAME "elf32-rx-le"
3949 #define elf_info_to_howto_rel NULL
3950 #define elf_info_to_howto rx_info_to_howto_rela
3951 #define elf_backend_object_p rx_elf_object_p
3952 #define elf_backend_relocate_section rx_elf_relocate_section
3953 #define elf_symbol_leading_char ('_')
3954 #define elf_backend_can_gc_sections 1
3955 #define elf_backend_modify_program_headers elf32_rx_modify_program_headers
3957 #define bfd_elf32_bfd_reloc_type_lookup rx_reloc_type_lookup
3958 #define bfd_elf32_bfd_reloc_name_lookup rx_reloc_name_lookup
3959 #define bfd_elf32_bfd_set_private_flags rx_elf_set_private_flags
3960 #define bfd_elf32_bfd_merge_private_bfd_data rx_elf_merge_private_bfd_data
3961 #define bfd_elf32_bfd_print_private_bfd_data rx_elf_print_private_bfd_data
3962 #define bfd_elf32_get_section_contents rx_get_section_contents
3963 #define bfd_elf32_set_section_contents rx_set_section_contents
3964 #define bfd_elf32_bfd_final_link rx_final_link
3965 #define bfd_elf32_bfd_relax_section elf32_rx_relax_section_wrapper
3966 #define elf_backend_special_sections elf32_rx_special_sections
3967 #define elf_backend_check_directives rx_check_directives
3969 #include "elf32-target.h"
3971 /* We define a second big-endian target that doesn't have the custom
3972 section get/set hooks, for times when we want to preserve the
3973 pre-swapped .text sections (like objcopy). */
3975 #undef TARGET_BIG_SYM
3976 #define TARGET_BIG_SYM rx_elf32_be_ns_vec
3977 #undef TARGET_BIG_NAME
3978 #define TARGET_BIG_NAME "elf32-rx-be-ns"
3979 #undef TARGET_LITTLE_SYM
3981 #undef bfd_elf32_get_section_contents
3982 #undef bfd_elf32_set_section_contents
3985 #define elf32_bed elf32_rx_be_ns_bed
3987 #include "elf32-target.h"