1 /* Renesas RX specific support for 32-bit ELF.
2 Copyright (C) 2008-2020 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., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
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
, 3, 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
,
305 Elf_Internal_Rela
* dst
)
309 r_type
= ELF32_R_TYPE (dst
->r_info
);
310 if (r_type
>= (unsigned int) R_RX_max
)
312 /* xgettext:c-format */
313 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
315 bfd_set_error (bfd_error_bad_value
);
318 cache_ptr
->howto
= rx_elf_howto_table
+ r_type
;
319 if (cache_ptr
->howto
->name
== NULL
)
321 /* xgettext:c-format */
322 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
324 bfd_set_error (bfd_error_bad_value
);
331 get_symbol_value (const char * name
,
332 struct bfd_link_info
* info
,
334 asection
* input_section
,
338 struct bfd_link_hash_entry
* h
;
340 h
= bfd_link_hash_lookup (info
->hash
, name
, FALSE
, FALSE
, TRUE
);
343 || (h
->type
!= bfd_link_hash_defined
344 && h
->type
!= bfd_link_hash_defweak
))
345 (*info
->callbacks
->undefined_symbol
)
346 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
348 value
= (h
->u
.def
.value
349 + h
->u
.def
.section
->output_section
->vma
350 + h
->u
.def
.section
->output_offset
);
356 get_symbol_value_maybe (const char * name
,
357 struct bfd_link_info
* info
)
360 struct bfd_link_hash_entry
* h
;
362 h
= bfd_link_hash_lookup (info
->hash
, name
, FALSE
, FALSE
, TRUE
);
365 || (h
->type
!= bfd_link_hash_defined
366 && h
->type
!= bfd_link_hash_defweak
))
369 value
= (h
->u
.def
.value
370 + h
->u
.def
.section
->output_section
->vma
371 + h
->u
.def
.section
->output_offset
);
377 get_gp (struct bfd_link_info
* info
,
382 static bfd_boolean cached
= FALSE
;
383 static bfd_vma cached_value
= 0;
387 cached_value
= get_symbol_value ("__gp", info
, abfd
, sec
, offset
);
394 get_romstart (struct bfd_link_info
* info
,
399 static bfd_boolean cached
= FALSE
;
400 static bfd_vma cached_value
= 0;
404 cached_value
= get_symbol_value ("_start", info
, abfd
, sec
, offset
);
411 get_ramstart (struct bfd_link_info
* info
,
416 static bfd_boolean cached
= FALSE
;
417 static bfd_vma cached_value
= 0;
421 cached_value
= get_symbol_value ("__datastart", info
, abfd
, sec
, offset
);
427 #define NUM_STACK_ENTRIES 16
428 static int32_t rx_stack
[ NUM_STACK_ENTRIES
];
429 static unsigned int rx_stack_top
;
431 #define RX_STACK_PUSH(val) \
434 if (rx_stack_top < NUM_STACK_ENTRIES) \
435 rx_stack [rx_stack_top ++] = (val); \
437 r = bfd_reloc_dangerous; \
441 #define RX_STACK_POP(dest) \
444 if (rx_stack_top > 0) \
445 (dest) = rx_stack [-- rx_stack_top]; \
447 (dest) = 0, r = bfd_reloc_dangerous; \
451 /* Relocate an RX ELF section.
452 There is some attempt to make this function usable for many architectures,
453 both USE_REL and USE_RELA ['twould be nice if such a critter existed],
454 if only to serve as a learning tool.
456 The RELOCATE_SECTION function is called by the new ELF backend linker
457 to handle the relocations for a section.
459 The relocs are always passed as Rela structures; if the section
460 actually uses Rel structures, the r_addend field will always be
463 This function is responsible for adjusting the section contents as
464 necessary, and (if using Rela relocs and generating a relocatable
465 output file) adjusting the reloc addend as necessary.
467 This function does not have to worry about setting the reloc
468 address or the reloc symbol index.
470 LOCAL_SYMS is a pointer to the swapped in local symbols.
472 LOCAL_SECTIONS is an array giving the section in the input file
473 corresponding to the st_shndx field of each local symbol.
475 The global hash table entry for the global symbols can be found
476 via elf_sym_hashes (input_bfd).
478 When generating relocatable output, this function must handle
479 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
480 going to be the section symbol corresponding to the output
481 section, which means that the addend must be adjusted
485 rx_elf_relocate_section
487 struct bfd_link_info
* info
,
489 asection
* input_section
,
491 Elf_Internal_Rela
* relocs
,
492 Elf_Internal_Sym
* local_syms
,
493 asection
** local_sections
)
495 Elf_Internal_Shdr
* symtab_hdr
;
496 struct elf_link_hash_entry
** sym_hashes
;
497 Elf_Internal_Rela
* rel
;
498 Elf_Internal_Rela
* relend
;
499 bfd_boolean pid_mode
;
500 bfd_boolean saw_subtract
= FALSE
;
501 const char * table_default_cache
= NULL
;
502 bfd_vma table_start_cache
= 0;
503 bfd_vma table_end_cache
= 0;
505 if (elf_elfheader (output_bfd
)->e_flags
& E_FLAG_RX_PID
)
510 symtab_hdr
= & elf_tdata (input_bfd
)->symtab_hdr
;
511 sym_hashes
= elf_sym_hashes (input_bfd
);
512 relend
= relocs
+ input_section
->reloc_count
;
513 for (rel
= relocs
; rel
< relend
; rel
++)
515 reloc_howto_type
* howto
;
516 unsigned long r_symndx
;
517 Elf_Internal_Sym
* sym
;
519 struct elf_link_hash_entry
* h
;
521 bfd_reloc_status_type r
;
522 const char * name
= NULL
;
523 bfd_boolean unresolved_reloc
= TRUE
;
526 r_type
= ELF32_R_TYPE (rel
->r_info
);
527 r_symndx
= ELF32_R_SYM (rel
->r_info
);
529 howto
= rx_elf_howto_table
+ ELF32_R_TYPE (rel
->r_info
);
535 if (rx_stack_top
== 0)
536 saw_subtract
= FALSE
;
538 if (r_symndx
< symtab_hdr
->sh_info
)
540 sym
= local_syms
+ r_symndx
;
541 sec
= local_sections
[r_symndx
];
542 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, & sec
, rel
);
544 name
= bfd_elf_string_from_elf_section
545 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
546 name
= sym
->st_name
== 0 ? bfd_section_name (sec
) : name
;
550 bfd_boolean warned
, ignored
;
552 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
553 r_symndx
, symtab_hdr
, sym_hashes
, h
,
554 sec
, relocation
, unresolved_reloc
,
557 name
= h
->root
.root
.string
;
560 if (strncmp (name
, "$tableentry$default$", 20) == 0)
566 if (table_default_cache
!= name
)
569 /* All relocs for a given table should be to the same
570 (weak) default symbol) so we can use it to detect a
571 cache miss. We use the offset into the table to find
572 the "real" symbol. Calculate and store the table's
575 table_default_cache
= name
;
577 /* We have already done error checking in rx_table_find(). */
579 buf
= (char *) malloc (13 + strlen (name
+ 20));
581 sprintf (buf
, "$tablestart$%s", name
+ 20);
582 table_start_cache
= get_symbol_value (buf
,
588 sprintf (buf
, "$tableend$%s", name
+ 20);
589 table_end_cache
= get_symbol_value (buf
,
598 entry_vma
= (input_section
->output_section
->vma
599 + input_section
->output_offset
602 if (table_end_cache
<= entry_vma
|| entry_vma
< table_start_cache
)
604 /* xgettext:c-format */
605 _bfd_error_handler (_("%pB:%pA: table entry %s outside table"),
606 input_bfd
, input_section
,
609 else if ((int) (entry_vma
- table_start_cache
) % 4)
611 /* xgettext:c-format */
612 _bfd_error_handler (_("%pB:%pA: table entry %s not word-aligned within table"),
613 input_bfd
, input_section
,
618 idx
= (int) (entry_vma
- table_start_cache
) / 4;
620 /* This will look like $tableentry$<N>$<name> */
621 buf
= (char *) malloc (12 + 20 + strlen (name
+ 20));
622 sprintf (buf
, "$tableentry$%d$%s", idx
, name
+ 20);
624 h
= (struct elf_link_hash_entry
*) bfd_link_hash_lookup (info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
628 relocation
= (h
->root
.u
.def
.value
629 + h
->root
.u
.def
.section
->output_section
->vma
630 + h
->root
.u
.def
.section
->output_offset
);;
637 if (sec
!= NULL
&& discarded_section (sec
))
638 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
639 rel
, 1, relend
, howto
, 0, contents
);
641 if (bfd_link_relocatable (info
))
643 /* This is a relocatable link. We don't have to change
644 anything, unless the reloc is against a section symbol,
645 in which case we have to adjust according to where the
646 section symbol winds up in the output section. */
647 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
648 rel
->r_addend
+= sec
->output_offset
;
652 if (h
!= NULL
&& h
->root
.type
== bfd_link_hash_undefweak
)
653 /* If the symbol is undefined and weak
654 then the relocation resolves to zero. */
658 if (howto
->pc_relative
)
660 relocation
-= (input_section
->output_section
->vma
661 + input_section
->output_offset
663 if (r_type
!= R_RX_RH_3_PCREL
664 && r_type
!= R_RX_DIR3U_PCREL
)
668 relocation
+= rel
->r_addend
;
674 if (a > (long) relocation || (long) relocation > b) \
675 r = bfd_reloc_overflow
677 if (relocation & m) \
680 (contents[rel->r_offset + (i)])
681 #define WARN_REDHAT(type) \
682 /* xgettext:c-format */ \
684 (_("%pB:%pA: warning: deprecated Red Hat reloc " \
685 "%s detected against: %s"), \
686 input_bfd, input_section, #type, name)
688 /* Check for unsafe relocs in PID mode. These are any relocs where
689 an absolute address is being computed. There are special cases
690 for relocs against symbols that are known to be referenced in
691 crt0.o before the PID base address register has been initialised. */
692 #define UNSAFE_FOR_PID \
697 && sec->flags & SEC_READONLY \
698 && !(input_section->flags & SEC_DEBUGGING) \
699 && strcmp (name, "__pid_base") != 0 \
700 && strcmp (name, "__gp") != 0 \
701 && strcmp (name, "__romdatastart") != 0 \
703 /* xgettext:c-format */ \
704 _bfd_error_handler (_("%pB(%pA): unsafe PID relocation %s " \
705 "at %#" PRIx64 " (against %s in %s)"), \
706 input_bfd, input_section, howto->name, \
707 (uint64_t) (input_section->output_section->vma \
708 + input_section->output_offset \
714 /* Opcode relocs are always big endian. Data relocs are bi-endian. */
723 case R_RX_RH_3_PCREL
:
724 WARN_REDHAT ("RX_RH_3_PCREL");
727 OP (0) |= relocation
& 0x07;
731 WARN_REDHAT ("RX_RH_8_NEG");
732 relocation
= - relocation
;
734 case R_RX_DIR8S_PCREL
:
753 WARN_REDHAT ("RX_RH_16_NEG");
754 relocation
= - relocation
;
756 case R_RX_DIR16S_PCREL
:
758 RANGE (-32768, 32767);
759 #if RX_OPCODE_BIG_ENDIAN
762 OP (1) = relocation
>> 8;
767 WARN_REDHAT ("RX_RH_16_OP");
769 RANGE (-32768, 32767);
770 #if RX_OPCODE_BIG_ENDIAN
772 OP (0) = relocation
>> 8;
775 OP (1) = relocation
>> 8;
781 RANGE (-32768, 65535);
782 if (BIGE (output_bfd
) && !(input_section
->flags
& SEC_CODE
))
785 OP (0) = relocation
>> 8;
790 OP (1) = relocation
>> 8;
797 #if RX_OPCODE_BIG_ENDIAN
799 OP (0) = relocation
>> 8;
802 OP (1) = relocation
>> 8;
808 RANGE (-32768, 65536);
809 #if RX_OPCODE_BIG_ENDIAN
811 OP (0) = relocation
>> 8;
814 OP (1) = relocation
>> 8;
820 RANGE (-32768, 65536);
821 #if RX_OPCODE_BIG_ENDIAN
823 OP (1) = relocation
>> 8;
826 OP (0) = relocation
>> 8;
830 case R_RX_DIR3U_PCREL
:
833 OP (0) |= relocation
& 0x07;
838 WARN_REDHAT ("RX_RH_24_NEG");
839 relocation
= - relocation
;
841 case R_RX_DIR24S_PCREL
:
842 RANGE (-0x800000, 0x7fffff);
843 #if RX_OPCODE_BIG_ENDIAN
845 OP (1) = relocation
>> 8;
846 OP (0) = relocation
>> 16;
849 OP (1) = relocation
>> 8;
850 OP (2) = relocation
>> 16;
856 WARN_REDHAT ("RX_RH_24_OP");
857 RANGE (-0x800000, 0x7fffff);
858 #if RX_OPCODE_BIG_ENDIAN
860 OP (1) = relocation
>> 8;
861 OP (0) = relocation
>> 16;
864 OP (1) = relocation
>> 8;
865 OP (2) = relocation
>> 16;
871 RANGE (-0x800000, 0x7fffff);
872 if (BIGE (output_bfd
) && !(input_section
->flags
& SEC_CODE
))
875 OP (1) = relocation
>> 8;
876 OP (0) = relocation
>> 16;
881 OP (1) = relocation
>> 8;
882 OP (2) = relocation
>> 16;
888 WARN_REDHAT ("RX_RH_24_UNS");
890 #if RX_OPCODE_BIG_ENDIAN
892 OP (1) = relocation
>> 8;
893 OP (0) = relocation
>> 16;
896 OP (1) = relocation
>> 8;
897 OP (2) = relocation
>> 16;
903 WARN_REDHAT ("RX_RH_32_NEG");
904 relocation
= - relocation
;
905 #if RX_OPCODE_BIG_ENDIAN
907 OP (2) = relocation
>> 8;
908 OP (1) = relocation
>> 16;
909 OP (0) = relocation
>> 24;
912 OP (1) = relocation
>> 8;
913 OP (2) = relocation
>> 16;
914 OP (3) = relocation
>> 24;
920 WARN_REDHAT ("RX_RH_32_OP");
921 #if RX_OPCODE_BIG_ENDIAN
923 OP (2) = relocation
>> 8;
924 OP (1) = relocation
>> 16;
925 OP (0) = relocation
>> 24;
928 OP (1) = relocation
>> 8;
929 OP (2) = relocation
>> 16;
930 OP (3) = relocation
>> 24;
935 if (BIGE (output_bfd
) && !(input_section
->flags
& SEC_CODE
))
938 OP (2) = relocation
>> 8;
939 OP (1) = relocation
>> 16;
940 OP (0) = relocation
>> 24;
945 OP (1) = relocation
>> 8;
946 OP (2) = relocation
>> 16;
947 OP (3) = relocation
>> 24;
952 if (BIGE (output_bfd
))
955 OP (1) = relocation
>> 8;
956 OP (2) = relocation
>> 16;
957 OP (3) = relocation
>> 24;
962 OP (2) = relocation
>> 8;
963 OP (1) = relocation
>> 16;
964 OP (0) = relocation
>> 24;
971 WARN_REDHAT ("RX_RH_DIFF");
972 val
= bfd_get_32 (output_bfd
, & OP (0));
974 bfd_put_32 (output_bfd
, val
, & OP (0));
979 WARN_REDHAT ("RX_RH_GPRELB");
980 relocation
-= get_gp (info
, input_bfd
, input_section
, rel
->r_offset
);
982 #if RX_OPCODE_BIG_ENDIAN
984 OP (0) = relocation
>> 8;
987 OP (1) = relocation
>> 8;
992 WARN_REDHAT ("RX_RH_GPRELW");
993 relocation
-= get_gp (info
, input_bfd
, input_section
, rel
->r_offset
);
997 #if RX_OPCODE_BIG_ENDIAN
999 OP (0) = relocation
>> 8;
1001 OP (0) = relocation
;
1002 OP (1) = relocation
>> 8;
1006 case R_RX_RH_GPRELL
:
1007 WARN_REDHAT ("RX_RH_GPRELL");
1008 relocation
-= get_gp (info
, input_bfd
, input_section
, rel
->r_offset
);
1012 #if RX_OPCODE_BIG_ENDIAN
1013 OP (1) = relocation
;
1014 OP (0) = relocation
>> 8;
1016 OP (0) = relocation
;
1017 OP (1) = relocation
>> 8;
1021 /* Internal relocations just for relaxation: */
1022 case R_RX_RH_ABS5p5B
:
1023 RX_STACK_POP (relocation
);
1026 OP (0) |= relocation
>> 2;
1028 OP (1) |= (relocation
<< 6) & 0x80;
1029 OP (1) |= (relocation
<< 3) & 0x08;
1032 case R_RX_RH_ABS5p5W
:
1033 RX_STACK_POP (relocation
);
1038 OP (0) |= relocation
>> 2;
1040 OP (1) |= (relocation
<< 6) & 0x80;
1041 OP (1) |= (relocation
<< 3) & 0x08;
1044 case R_RX_RH_ABS5p5L
:
1045 RX_STACK_POP (relocation
);
1050 OP (0) |= relocation
>> 2;
1052 OP (1) |= (relocation
<< 6) & 0x80;
1053 OP (1) |= (relocation
<< 3) & 0x08;
1056 case R_RX_RH_ABS5p8B
:
1057 RX_STACK_POP (relocation
);
1060 OP (0) |= (relocation
<< 3) & 0x80;
1061 OP (0) |= relocation
& 0x0f;
1064 case R_RX_RH_ABS5p8W
:
1065 RX_STACK_POP (relocation
);
1070 OP (0) |= (relocation
<< 3) & 0x80;
1071 OP (0) |= relocation
& 0x0f;
1074 case R_RX_RH_ABS5p8L
:
1075 RX_STACK_POP (relocation
);
1080 OP (0) |= (relocation
<< 3) & 0x80;
1081 OP (0) |= relocation
& 0x0f;
1084 case R_RX_RH_UIMM4p8
:
1087 OP (0) |= relocation
<< 4;
1090 case R_RX_RH_UNEG4p8
:
1093 OP (0) |= (-relocation
) << 4;
1096 /* Complex reloc handling: */
1100 RX_STACK_POP (relocation
);
1101 #if RX_OPCODE_BIG_ENDIAN
1102 OP (3) = relocation
;
1103 OP (2) = relocation
>> 8;
1104 OP (1) = relocation
>> 16;
1105 OP (0) = relocation
>> 24;
1107 OP (0) = relocation
;
1108 OP (1) = relocation
>> 8;
1109 OP (2) = relocation
>> 16;
1110 OP (3) = relocation
>> 24;
1114 case R_RX_ABS32_REV
:
1116 RX_STACK_POP (relocation
);
1117 #if RX_OPCODE_BIG_ENDIAN
1118 OP (0) = relocation
;
1119 OP (1) = relocation
>> 8;
1120 OP (2) = relocation
>> 16;
1121 OP (3) = relocation
>> 24;
1123 OP (3) = relocation
;
1124 OP (2) = relocation
>> 8;
1125 OP (1) = relocation
>> 16;
1126 OP (0) = relocation
>> 24;
1130 case R_RX_ABS24S_PCREL
:
1133 RX_STACK_POP (relocation
);
1134 RANGE (-0x800000, 0x7fffff);
1135 if (BIGE (output_bfd
) && !(input_section
->flags
& SEC_CODE
))
1137 OP (2) = relocation
;
1138 OP (1) = relocation
>> 8;
1139 OP (0) = relocation
>> 16;
1143 OP (0) = relocation
;
1144 OP (1) = relocation
>> 8;
1145 OP (2) = relocation
>> 16;
1151 RX_STACK_POP (relocation
);
1152 RANGE (-32768, 65535);
1153 #if RX_OPCODE_BIG_ENDIAN
1154 OP (1) = relocation
;
1155 OP (0) = relocation
>> 8;
1157 OP (0) = relocation
;
1158 OP (1) = relocation
>> 8;
1162 case R_RX_ABS16_REV
:
1164 RX_STACK_POP (relocation
);
1165 RANGE (-32768, 65535);
1166 #if RX_OPCODE_BIG_ENDIAN
1167 OP (0) = relocation
;
1168 OP (1) = relocation
>> 8;
1170 OP (1) = relocation
;
1171 OP (0) = relocation
>> 8;
1175 case R_RX_ABS16S_PCREL
:
1177 RX_STACK_POP (relocation
);
1178 RANGE (-32768, 32767);
1179 if (BIGE (output_bfd
) && !(input_section
->flags
& SEC_CODE
))
1181 OP (1) = relocation
;
1182 OP (0) = relocation
>> 8;
1186 OP (0) = relocation
;
1187 OP (1) = relocation
>> 8;
1193 RX_STACK_POP (relocation
);
1195 #if RX_OPCODE_BIG_ENDIAN
1196 OP (1) = relocation
;
1197 OP (0) = relocation
>> 8;
1199 OP (0) = relocation
;
1200 OP (1) = relocation
>> 8;
1206 RX_STACK_POP (relocation
);
1209 #if RX_OPCODE_BIG_ENDIAN
1210 OP (1) = relocation
;
1211 OP (0) = relocation
>> 8;
1213 OP (0) = relocation
;
1214 OP (1) = relocation
>> 8;
1220 RX_STACK_POP (relocation
);
1223 #if RX_OPCODE_BIG_ENDIAN
1224 OP (1) = relocation
;
1225 OP (0) = relocation
>> 8;
1227 OP (0) = relocation
;
1228 OP (1) = relocation
>> 8;
1234 RX_STACK_POP (relocation
);
1236 OP (0) = relocation
;
1241 RX_STACK_POP (relocation
);
1243 OP (0) = relocation
;
1248 RX_STACK_POP (relocation
);
1251 OP (0) = relocation
;
1256 RX_STACK_POP (relocation
);
1259 OP (0) = relocation
;
1265 case R_RX_ABS8S_PCREL
:
1266 RX_STACK_POP (relocation
);
1268 OP (0) = relocation
;
1272 if (r_symndx
< symtab_hdr
->sh_info
)
1273 RX_STACK_PUSH (sec
->output_section
->vma
1274 + sec
->output_offset
1280 && (h
->root
.type
== bfd_link_hash_defined
1281 || h
->root
.type
== bfd_link_hash_defweak
))
1282 RX_STACK_PUSH (h
->root
.u
.def
.value
1283 + sec
->output_section
->vma
1284 + sec
->output_offset
1288 (_("warning: RX_SYM reloc with an unknown symbol"));
1296 saw_subtract
= TRUE
;
1299 RX_STACK_PUSH (tmp
);
1307 RX_STACK_POP (tmp1
);
1308 RX_STACK_POP (tmp2
);
1310 RX_STACK_PUSH (tmp1
);
1318 saw_subtract
= TRUE
;
1319 RX_STACK_POP (tmp1
);
1320 RX_STACK_POP (tmp2
);
1322 RX_STACK_PUSH (tmp2
);
1330 RX_STACK_POP (tmp1
);
1331 RX_STACK_POP (tmp2
);
1333 RX_STACK_PUSH (tmp1
);
1341 RX_STACK_POP (tmp1
);
1342 RX_STACK_POP (tmp2
);
1344 RX_STACK_PUSH (tmp1
);
1352 RX_STACK_POP (tmp1
);
1353 RX_STACK_POP (tmp2
);
1355 RX_STACK_PUSH (tmp1
);
1363 RX_STACK_POP (tmp1
);
1364 RX_STACK_POP (tmp2
);
1366 RX_STACK_PUSH (tmp1
);
1370 case R_RX_OPsctsize
:
1371 RX_STACK_PUSH (input_section
->size
);
1375 RX_STACK_PUSH (input_section
->output_section
->vma
);
1382 RX_STACK_POP (tmp1
);
1383 RX_STACK_POP (tmp2
);
1385 RX_STACK_PUSH (tmp1
);
1393 RX_STACK_POP (tmp1
);
1394 RX_STACK_POP (tmp2
);
1396 RX_STACK_PUSH (tmp1
);
1404 RX_STACK_POP (tmp1
);
1405 RX_STACK_POP (tmp2
);
1407 RX_STACK_PUSH (tmp1
);
1417 RX_STACK_PUSH (tmp
);
1425 RX_STACK_POP (tmp1
);
1426 RX_STACK_POP (tmp2
);
1428 RX_STACK_PUSH (tmp1
);
1433 RX_STACK_PUSH (get_romstart (info
, input_bfd
, input_section
, rel
->r_offset
));
1437 RX_STACK_PUSH (get_ramstart (info
, input_bfd
, input_section
, rel
->r_offset
));
1441 r
= bfd_reloc_notsupported
;
1445 if (r
!= bfd_reloc_ok
)
1447 const char * msg
= NULL
;
1451 case bfd_reloc_overflow
:
1452 /* Catch the case of a missing function declaration
1453 and emit a more helpful error message. */
1454 if (r_type
== R_RX_DIR24S_PCREL
)
1455 /* xgettext:c-format */
1456 msg
= _("%pB(%pA): error: call to undefined function '%s'");
1458 (*info
->callbacks
->reloc_overflow
)
1459 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
, (bfd_vma
) 0,
1460 input_bfd
, input_section
, rel
->r_offset
);
1463 case bfd_reloc_undefined
:
1464 (*info
->callbacks
->undefined_symbol
)
1465 (info
, name
, input_bfd
, input_section
, rel
->r_offset
, TRUE
);
1468 case bfd_reloc_other
:
1469 /* xgettext:c-format */
1470 msg
= _("%pB(%pA): warning: unaligned access to symbol '%s' in the small data area");
1473 case bfd_reloc_outofrange
:
1474 /* xgettext:c-format */
1475 msg
= _("%pB(%pA): internal error: out of range error");
1478 case bfd_reloc_notsupported
:
1479 /* xgettext:c-format */
1480 msg
= _("%pB(%pA): internal error: unsupported relocation error");
1483 case bfd_reloc_dangerous
:
1484 /* xgettext:c-format */
1485 msg
= _("%pB(%pA): internal error: dangerous relocation");
1489 /* xgettext:c-format */
1490 msg
= _("%pB(%pA): internal error: unknown error");
1495 _bfd_error_handler (msg
, input_bfd
, input_section
, name
);
1502 /* Relaxation Support. */
1504 /* Progression of relocations from largest operand size to smallest
1508 next_smaller_reloc (int r
)
1512 case R_RX_DIR32
: return R_RX_DIR24S
;
1513 case R_RX_DIR24S
: return R_RX_DIR16S
;
1514 case R_RX_DIR16S
: return R_RX_DIR8S
;
1515 case R_RX_DIR8S
: return R_RX_NONE
;
1517 case R_RX_DIR16
: return R_RX_DIR8
;
1518 case R_RX_DIR8
: return R_RX_NONE
;
1520 case R_RX_DIR16U
: return R_RX_DIR8U
;
1521 case R_RX_DIR8U
: return R_RX_NONE
;
1523 case R_RX_DIR24S_PCREL
: return R_RX_DIR16S_PCREL
;
1524 case R_RX_DIR16S_PCREL
: return R_RX_DIR8S_PCREL
;
1525 case R_RX_DIR8S_PCREL
: return R_RX_DIR3U_PCREL
;
1527 case R_RX_DIR16UL
: return R_RX_DIR8UL
;
1528 case R_RX_DIR8UL
: return R_RX_NONE
;
1529 case R_RX_DIR16UW
: return R_RX_DIR8UW
;
1530 case R_RX_DIR8UW
: return R_RX_NONE
;
1532 case R_RX_RH_32_OP
: return R_RX_RH_24_OP
;
1533 case R_RX_RH_24_OP
: return R_RX_RH_16_OP
;
1534 case R_RX_RH_16_OP
: return R_RX_DIR8
;
1536 case R_RX_ABS32
: return R_RX_ABS24S
;
1537 case R_RX_ABS24S
: return R_RX_ABS16S
;
1538 case R_RX_ABS16
: return R_RX_ABS8
;
1539 case R_RX_ABS16U
: return R_RX_ABS8U
;
1540 case R_RX_ABS16S
: return R_RX_ABS8S
;
1541 case R_RX_ABS8
: return R_RX_NONE
;
1542 case R_RX_ABS8U
: return R_RX_NONE
;
1543 case R_RX_ABS8S
: return R_RX_NONE
;
1544 case R_RX_ABS24S_PCREL
: return R_RX_ABS16S_PCREL
;
1545 case R_RX_ABS16S_PCREL
: return R_RX_ABS8S_PCREL
;
1546 case R_RX_ABS8S_PCREL
: return R_RX_NONE
;
1547 case R_RX_ABS16UL
: return R_RX_ABS8UL
;
1548 case R_RX_ABS16UW
: return R_RX_ABS8UW
;
1549 case R_RX_ABS8UL
: return R_RX_NONE
;
1550 case R_RX_ABS8UW
: return R_RX_NONE
;
1555 /* Delete some bytes from a section while relaxing. */
1558 elf32_rx_relax_delete_bytes (bfd
*abfd
, asection
*sec
, bfd_vma addr
, int count
,
1559 Elf_Internal_Rela
*alignment_rel
, int force_snip
,
1560 Elf_Internal_Rela
*irelstart
)
1562 Elf_Internal_Shdr
* symtab_hdr
;
1563 unsigned int sec_shndx
;
1564 bfd_byte
* contents
;
1565 Elf_Internal_Rela
* irel
;
1566 Elf_Internal_Rela
* irelend
;
1567 Elf_Internal_Sym
* isym
;
1568 Elf_Internal_Sym
* isymend
;
1570 unsigned int symcount
;
1571 struct elf_link_hash_entry
** sym_hashes
;
1572 struct elf_link_hash_entry
** end_hashes
;
1577 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
1579 contents
= elf_section_data (sec
)->this_hdr
.contents
;
1581 /* The deletion must stop at the next alignment boundary, if
1582 ALIGNMENT_REL is non-NULL. */
1585 toaddr
= alignment_rel
->r_offset
;
1587 BFD_ASSERT (toaddr
> addr
);
1589 /* Actually delete the bytes. */
1590 memmove (contents
+ addr
, contents
+ addr
+ count
,
1591 (size_t) (toaddr
- addr
- count
));
1593 /* If we don't have an alignment marker to worry about, we can just
1594 shrink the section. Otherwise, we have to fill in the newly
1595 created gap with NOP insns (0x03). */
1599 memset (contents
+ toaddr
- count
, 0x03, count
);
1602 BFD_ASSERT (irel
!= NULL
|| sec
->reloc_count
== 0);
1603 irelend
= irel
+ sec
->reloc_count
;
1605 /* Adjust all the relocs. */
1606 for (; irel
< irelend
; irel
++)
1608 /* Get the new reloc address. */
1609 if (irel
->r_offset
> addr
1610 && (irel
->r_offset
< toaddr
1611 || (force_snip
&& irel
->r_offset
== toaddr
)))
1612 irel
->r_offset
-= count
;
1614 /* If we see an ALIGN marker at the end of the gap, we move it
1615 to the beginning of the gap, since marking these gaps is what
1617 if (irel
->r_offset
== toaddr
1618 && ELF32_R_TYPE (irel
->r_info
) == R_RX_RH_RELAX
1619 && irel
->r_addend
& RX_RELAXA_ALIGN
)
1620 irel
->r_offset
-= count
;
1623 /* Adjust the local symbols defined in this section. */
1624 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1625 isym
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
1626 isymend
= isym
+ symtab_hdr
->sh_info
;
1628 for (; isym
< isymend
; isym
++)
1630 /* If the symbol is in the range of memory we just moved, we
1631 have to adjust its value. */
1632 if (isym
->st_shndx
== sec_shndx
1633 && isym
->st_value
> addr
1634 && isym
->st_value
< toaddr
)
1635 isym
->st_value
-= count
;
1637 /* If the symbol *spans* the bytes we just deleted (i.e. it's
1638 *end* is in the moved bytes but it's *start* isn't), then we
1639 must adjust its size. */
1640 if (isym
->st_shndx
== sec_shndx
1641 && isym
->st_value
< addr
1642 && isym
->st_value
+ isym
->st_size
> addr
1643 && isym
->st_value
+ isym
->st_size
< toaddr
)
1644 isym
->st_size
-= count
;
1647 /* Now adjust the global symbols defined in this section. */
1648 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
1649 - symtab_hdr
->sh_info
);
1650 sym_hashes
= elf_sym_hashes (abfd
);
1651 end_hashes
= sym_hashes
+ symcount
;
1653 for (; sym_hashes
< end_hashes
; sym_hashes
++)
1655 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
1657 if ((sym_hash
->root
.type
== bfd_link_hash_defined
1658 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
1659 && sym_hash
->root
.u
.def
.section
== sec
)
1661 /* As above, adjust the value if needed. */
1662 if (sym_hash
->root
.u
.def
.value
> addr
1663 && sym_hash
->root
.u
.def
.value
< toaddr
)
1664 sym_hash
->root
.u
.def
.value
-= count
;
1666 /* As above, adjust the size if needed. */
1667 if (sym_hash
->root
.u
.def
.value
< addr
1668 && sym_hash
->root
.u
.def
.value
+ sym_hash
->size
> addr
1669 && sym_hash
->root
.u
.def
.value
+ sym_hash
->size
< toaddr
)
1670 sym_hash
->size
-= count
;
1677 /* Used to sort relocs by address. If relocs have the same address,
1678 we maintain their relative order, except that R_RX_RH_RELAX
1679 alignment relocs must be the first reloc for any given address. */
1682 reloc_bubblesort (Elf_Internal_Rela
* r
, int count
)
1686 bfd_boolean swappit
;
1688 /* This is almost a classic bubblesort. It's the slowest sort, but
1689 we're taking advantage of the fact that the relocations are
1690 mostly in order already (the assembler emits them that way) and
1691 we need relocs with the same address to remain in the same
1697 for (i
= 0; i
< count
- 1; i
++)
1699 if (r
[i
].r_offset
> r
[i
+ 1].r_offset
)
1701 else if (r
[i
].r_offset
< r
[i
+ 1].r_offset
)
1703 else if (ELF32_R_TYPE (r
[i
+ 1].r_info
) == R_RX_RH_RELAX
1704 && (r
[i
+ 1].r_addend
& RX_RELAXA_ALIGN
))
1706 else if (ELF32_R_TYPE (r
[i
+ 1].r_info
) == R_RX_RH_RELAX
1707 && (r
[i
+ 1].r_addend
& RX_RELAXA_ELIGN
)
1708 && !(ELF32_R_TYPE (r
[i
].r_info
) == R_RX_RH_RELAX
1709 && (r
[i
].r_addend
& RX_RELAXA_ALIGN
)))
1716 Elf_Internal_Rela tmp
;
1721 /* If we do move a reloc back, re-scan to see if it
1722 needs to be moved even further back. This avoids
1723 most of the O(n^2) behavior for our cases. */
1733 #define OFFSET_FOR_RELOC(rel, lrel, scale) \
1734 rx_offset_for_reloc (abfd, rel + 1, symtab_hdr, shndx_buf, intsyms, \
1735 lrel, abfd, sec, link_info, scale)
1738 rx_offset_for_reloc (bfd
* abfd
,
1739 Elf_Internal_Rela
* rel
,
1740 Elf_Internal_Shdr
* symtab_hdr
,
1741 bfd_byte
* shndx_buf ATTRIBUTE_UNUSED
,
1742 Elf_Internal_Sym
* intsyms
,
1743 Elf_Internal_Rela
** lrel
,
1745 asection
* input_section
,
1746 struct bfd_link_info
* info
,
1750 bfd_reloc_status_type r
;
1754 /* REL is the first of 1..N relocations. We compute the symbol
1755 value for each relocation, then combine them if needed. LREL
1756 gets a pointer to the last relocation used. */
1761 /* Get the value of the symbol referred to by the reloc. */
1762 if (ELF32_R_SYM (rel
->r_info
) < symtab_hdr
->sh_info
)
1764 /* A local symbol. */
1765 Elf_Internal_Sym
*isym
;
1768 isym
= intsyms
+ ELF32_R_SYM (rel
->r_info
);
1770 if (isym
->st_shndx
== SHN_UNDEF
)
1771 ssec
= bfd_und_section_ptr
;
1772 else if (isym
->st_shndx
== SHN_ABS
)
1773 ssec
= bfd_abs_section_ptr
;
1774 else if (isym
->st_shndx
== SHN_COMMON
)
1775 ssec
= bfd_com_section_ptr
;
1777 ssec
= bfd_section_from_elf_index (abfd
,
1780 /* Initial symbol value. */
1781 symval
= isym
->st_value
;
1783 /* GAS may have made this symbol relative to a section, in
1784 which case, we have to add the addend to find the
1786 if (ELF_ST_TYPE (isym
->st_info
) == STT_SECTION
)
1787 symval
+= rel
->r_addend
;
1791 if ((ssec
->flags
& SEC_MERGE
)
1792 && ssec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
1793 symval
= _bfd_merged_section_offset (abfd
, & ssec
,
1794 elf_section_data (ssec
)->sec_info
,
1798 /* Now make the offset relative to where the linker is putting it. */
1801 ssec
->output_section
->vma
+ ssec
->output_offset
;
1803 symval
+= rel
->r_addend
;
1808 struct elf_link_hash_entry
* h
;
1810 /* An external symbol. */
1811 indx
= ELF32_R_SYM (rel
->r_info
) - symtab_hdr
->sh_info
;
1812 h
= elf_sym_hashes (abfd
)[indx
];
1813 BFD_ASSERT (h
!= NULL
);
1815 if (h
->root
.type
!= bfd_link_hash_defined
1816 && h
->root
.type
!= bfd_link_hash_defweak
)
1818 /* This appears to be a reference to an undefined
1819 symbol. Just ignore it--it will be caught by the
1820 regular reloc processing. */
1826 symval
= (h
->root
.u
.def
.value
1827 + h
->root
.u
.def
.section
->output_section
->vma
1828 + h
->root
.u
.def
.section
->output_offset
);
1830 symval
+= rel
->r_addend
;
1833 switch (ELF32_R_TYPE (rel
->r_info
))
1836 RX_STACK_PUSH (symval
);
1840 RX_STACK_POP (tmp1
);
1842 RX_STACK_PUSH (tmp1
);
1846 RX_STACK_POP (tmp1
);
1847 RX_STACK_POP (tmp2
);
1849 RX_STACK_PUSH (tmp1
);
1853 RX_STACK_POP (tmp1
);
1854 RX_STACK_POP (tmp2
);
1856 RX_STACK_PUSH (tmp2
);
1860 RX_STACK_POP (tmp1
);
1861 RX_STACK_POP (tmp2
);
1863 RX_STACK_PUSH (tmp1
);
1867 RX_STACK_POP (tmp1
);
1868 RX_STACK_POP (tmp2
);
1870 RX_STACK_PUSH (tmp1
);
1874 RX_STACK_POP (tmp1
);
1875 RX_STACK_POP (tmp2
);
1877 RX_STACK_PUSH (tmp1
);
1881 RX_STACK_POP (tmp1
);
1882 RX_STACK_POP (tmp2
);
1884 RX_STACK_PUSH (tmp1
);
1887 case R_RX_OPsctsize
:
1888 RX_STACK_PUSH (input_section
->size
);
1892 RX_STACK_PUSH (input_section
->output_section
->vma
);
1896 RX_STACK_POP (tmp1
);
1897 RX_STACK_POP (tmp2
);
1899 RX_STACK_PUSH (tmp1
);
1903 RX_STACK_POP (tmp1
);
1904 RX_STACK_POP (tmp2
);
1906 RX_STACK_PUSH (tmp1
);
1910 RX_STACK_POP (tmp1
);
1911 RX_STACK_POP (tmp2
);
1913 RX_STACK_PUSH (tmp1
);
1917 RX_STACK_POP (tmp1
);
1919 RX_STACK_PUSH (tmp1
);
1923 RX_STACK_POP (tmp1
);
1924 RX_STACK_POP (tmp2
);
1926 RX_STACK_PUSH (tmp1
);
1930 RX_STACK_PUSH (get_romstart (info
, input_bfd
, input_section
, rel
->r_offset
));
1934 RX_STACK_PUSH (get_ramstart (info
, input_bfd
, input_section
, rel
->r_offset
));
1942 RX_STACK_POP (symval
);
1953 RX_STACK_POP (symval
);
1961 RX_STACK_POP (symval
);
1974 move_reloc (Elf_Internal_Rela
* irel
, Elf_Internal_Rela
* srel
, int delta
)
1976 bfd_vma old_offset
= srel
->r_offset
;
1979 while (irel
<= srel
)
1981 if (irel
->r_offset
== old_offset
)
1982 irel
->r_offset
+= delta
;
1987 /* Relax one section. */
1990 elf32_rx_relax_section (bfd
* abfd
,
1992 struct bfd_link_info
* link_info
,
1993 bfd_boolean
* again
,
1994 bfd_boolean allow_pcrel3
)
1996 Elf_Internal_Shdr
* symtab_hdr
;
1997 Elf_Internal_Shdr
* shndx_hdr
;
1998 Elf_Internal_Rela
* internal_relocs
;
1999 Elf_Internal_Rela
* irel
;
2000 Elf_Internal_Rela
* srel
;
2001 Elf_Internal_Rela
* irelend
;
2002 Elf_Internal_Rela
* next_alignment
;
2003 Elf_Internal_Rela
* prev_alignment
;
2004 bfd_byte
* contents
= NULL
;
2005 bfd_byte
* free_contents
= NULL
;
2006 Elf_Internal_Sym
* intsyms
= NULL
;
2007 Elf_Internal_Sym
* free_intsyms
= NULL
;
2008 bfd_byte
* shndx_buf
= NULL
;
2014 int section_alignment_glue
;
2015 /* how much to scale the relocation by - 1, 2, or 4. */
2018 /* Assume nothing changes. */
2021 /* We don't have to do anything for a relocatable link, if
2022 this section does not have relocs, or if this is not a
2024 if (bfd_link_relocatable (link_info
)
2025 || (sec
->flags
& SEC_RELOC
) == 0
2026 || sec
->reloc_count
== 0
2027 || (sec
->flags
& SEC_CODE
) == 0)
2030 symtab_hdr
= & elf_symtab_hdr (abfd
);
2031 if (elf_symtab_shndx_list (abfd
))
2032 shndx_hdr
= & elf_symtab_shndx_list (abfd
)->hdr
;
2036 sec_start
= sec
->output_section
->vma
+ sec
->output_offset
;
2038 /* Get the section contents. */
2039 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
2040 contents
= elf_section_data (sec
)->this_hdr
.contents
;
2041 /* Go get them off disk. */
2044 if (! bfd_malloc_and_get_section (abfd
, sec
, &contents
))
2046 elf_section_data (sec
)->this_hdr
.contents
= contents
;
2049 /* Read this BFD's symbols. */
2050 /* Get cached copy if it exists. */
2051 if (symtab_hdr
->contents
!= NULL
)
2052 intsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2055 intsyms
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
, symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
2056 symtab_hdr
->contents
= (bfd_byte
*) intsyms
;
2059 if (shndx_hdr
&& shndx_hdr
->sh_size
!= 0)
2063 if (_bfd_mul_overflow (symtab_hdr
->sh_info
,
2064 sizeof (Elf_External_Sym_Shndx
), &amt
))
2066 bfd_set_error (bfd_error_file_too_big
);
2069 if (bfd_seek (abfd
, shndx_hdr
->sh_offset
, SEEK_SET
) != 0)
2071 shndx_buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2072 if (shndx_buf
== NULL
)
2074 shndx_hdr
->contents
= shndx_buf
;
2077 /* Get a copy of the native relocations. */
2078 /* Note - we ignore the setting of link_info->keep_memory when reading
2079 in these relocs. We have to maintain a permanent copy of the relocs
2080 because we are going to walk over them multiple times, adjusting them
2081 as bytes are deleted from the section, and with this relaxation
2082 function itself being called multiple times on the same section... */
2083 internal_relocs
= _bfd_elf_link_read_relocs
2084 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
, TRUE
);
2085 if (internal_relocs
== NULL
)
2088 /* The RL_ relocs must be just before the operand relocs they go
2089 with, so we must sort them to guarantee this. We use bubblesort
2090 instead of qsort so we can guarantee that relocs with the same
2091 address remain in the same relative order. */
2092 reloc_bubblesort (internal_relocs
, sec
->reloc_count
);
2094 /* Walk through them looking for relaxing opportunities. */
2095 irelend
= internal_relocs
+ sec
->reloc_count
;
2097 /* This will either be NULL or a pointer to the next alignment
2099 next_alignment
= internal_relocs
;
2100 /* This will be the previous alignment, although at first it points
2101 to the first real relocation. */
2102 prev_alignment
= internal_relocs
;
2104 /* We calculate worst case shrinkage caused by alignment directives.
2105 No fool-proof, but better than either ignoring the problem or
2106 doing heavy duty analysis of all the alignment markers in all
2108 section_alignment_glue
= 0;
2109 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
2110 if (ELF32_R_TYPE (irel
->r_info
) == R_RX_RH_RELAX
2111 && irel
->r_addend
& RX_RELAXA_ALIGN
)
2113 int this_glue
= 1 << (irel
->r_addend
& RX_RELAXA_ANUM
);
2115 if (section_alignment_glue
< this_glue
)
2116 section_alignment_glue
= this_glue
;
2118 /* Worst case is all 0..N alignments, in order, causing 2*N-1 byte
2120 section_alignment_glue
*= 2;
2122 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
2124 unsigned char *insn
;
2127 /* The insns we care about are all marked with one of these. */
2128 if (ELF32_R_TYPE (irel
->r_info
) != R_RX_RH_RELAX
)
2131 if (irel
->r_addend
& RX_RELAXA_ALIGN
2132 || next_alignment
== internal_relocs
)
2134 /* When we delete bytes, we need to maintain all the alignments
2135 indicated. In addition, we need to be careful about relaxing
2136 jumps across alignment boundaries - these displacements
2137 *grow* when we delete bytes. For now, don't shrink
2138 displacements across an alignment boundary, just in case.
2139 Note that this only affects relocations to the same
2141 prev_alignment
= next_alignment
;
2142 next_alignment
+= 2;
2143 while (next_alignment
< irelend
2144 && (ELF32_R_TYPE (next_alignment
->r_info
) != R_RX_RH_RELAX
2145 || !(next_alignment
->r_addend
& RX_RELAXA_ELIGN
)))
2147 if (next_alignment
>= irelend
|| next_alignment
->r_offset
== 0)
2148 next_alignment
= NULL
;
2151 /* When we hit alignment markers, see if we've shrunk enough
2152 before them to reduce the gap without violating the alignment
2154 if (irel
->r_addend
& RX_RELAXA_ALIGN
)
2156 /* At this point, the next relocation *should* be the ELIGN
2158 Elf_Internal_Rela
*erel
= irel
+ 1;
2159 unsigned int alignment
, nbytes
;
2161 if (ELF32_R_TYPE (erel
->r_info
) != R_RX_RH_RELAX
)
2163 if (!(erel
->r_addend
& RX_RELAXA_ELIGN
))
2166 alignment
= 1 << (irel
->r_addend
& RX_RELAXA_ANUM
);
2168 if (erel
->r_offset
- irel
->r_offset
< alignment
)
2171 nbytes
= erel
->r_offset
- irel
->r_offset
;
2172 nbytes
/= alignment
;
2173 nbytes
*= alignment
;
2175 elf32_rx_relax_delete_bytes (abfd
, sec
, erel
->r_offset
-nbytes
, nbytes
, next_alignment
,
2176 erel
->r_offset
== sec
->size
, internal_relocs
);
2182 if (irel
->r_addend
& RX_RELAXA_ELIGN
)
2185 insn
= contents
+ irel
->r_offset
;
2187 nrelocs
= irel
->r_addend
& RX_RELAXA_RNUM
;
2189 /* At this point, we have an insn that is a candidate for linker
2190 relaxation. There are NRELOCS relocs following that may be
2191 relaxed, although each reloc may be made of more than one
2192 reloc entry (such as gp-rel symbols). */
2194 /* Get the value of the symbol referred to by the reloc. Just
2195 in case this is the last reloc in the list, use the RL's
2196 addend to choose between this reloc (no addend) or the next
2197 (yes addend, which means at least one following reloc). */
2199 /* srel points to the "current" reloction for this insn -
2200 actually the last reloc for a given operand, which is the one
2201 we need to update. We check the relaxations in the same
2202 order that the relocations happen, so we'll just push it
2206 pc
= sec
->output_section
->vma
+ sec
->output_offset
2210 symval = OFFSET_FOR_RELOC (srel, &srel, &scale); \
2211 pcrel = symval - pc + srel->r_addend; \
2214 #define SNIPNR(offset, nbytes) \
2215 elf32_rx_relax_delete_bytes (abfd, sec, (insn - contents) + offset, nbytes, next_alignment, 0, internal_relocs);
2216 #define SNIP(offset, nbytes, newtype) \
2217 SNIPNR (offset, nbytes); \
2218 srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), newtype)
2220 /* The order of these bit tests must match the order that the
2221 relocs appear in. Since we sorted those by offset, we can
2224 /* Note that the numbers in, say, DSP6 are the bit offsets of
2225 the code fields that describe the operand. Bits number 0 for
2226 the MSB of insn[0]. */
2233 if (irel
->r_addend
& RX_RELAXA_DSP6
)
2238 if (code
== 2 && symval
/scale
<= 255)
2240 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2243 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2244 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2246 SNIP (3, 1, newrel
);
2251 else if (code
== 1 && symval
== 0)
2254 SNIP (2, 1, R_RX_NONE
);
2258 /* Special case DSP:5 format: MOV.bwl dsp:5[Rsrc],Rdst. */
2259 else if (code
== 1 && symval
/scale
<= 31
2260 /* Decodable bits. */
2261 && (insn
[0] & 0xcc) == 0xcc
2263 && (insn
[0] & 0x30) != 0x30
2264 /* Register MSBs. */
2265 && (insn
[1] & 0x88) == 0x00)
2269 insn
[0] = 0x88 | (insn
[0] & 0x30);
2270 /* The register fields are in the right place already. */
2272 /* We can't relax this new opcode. */
2275 switch ((insn
[0] & 0x30) >> 4)
2278 newrel
= R_RX_RH_ABS5p5B
;
2281 newrel
= R_RX_RH_ABS5p5W
;
2284 newrel
= R_RX_RH_ABS5p5L
;
2288 move_reloc (irel
, srel
, -2);
2289 SNIP (2, 1, newrel
);
2292 /* Special case DSP:5 format: MOVU.bw dsp:5[Rsrc],Rdst. */
2293 else if (code
== 1 && symval
/scale
<= 31
2294 /* Decodable bits. */
2295 && (insn
[0] & 0xf8) == 0x58
2296 /* Register MSBs. */
2297 && (insn
[1] & 0x88) == 0x00)
2301 insn
[0] = 0xb0 | ((insn
[0] & 0x04) << 1);
2302 /* The register fields are in the right place already. */
2304 /* We can't relax this new opcode. */
2307 switch ((insn
[0] & 0x08) >> 3)
2310 newrel
= R_RX_RH_ABS5p5B
;
2313 newrel
= R_RX_RH_ABS5p5W
;
2317 move_reloc (irel
, srel
, -2);
2318 SNIP (2, 1, newrel
);
2322 /* A DSP4 operand always follows a DSP6 operand, even if there's
2323 no relocation for it. We have to read the code out of the
2324 opcode to calculate the offset of the operand. */
2325 if (irel
->r_addend
& RX_RELAXA_DSP4
)
2327 int code6
, offset
= 0;
2331 code6
= insn
[0] & 0x03;
2334 case 0: offset
= 2; break;
2335 case 1: offset
= 3; break;
2336 case 2: offset
= 4; break;
2337 case 3: offset
= 2; break;
2340 code
= (insn
[0] & 0x0c) >> 2;
2342 if (code
== 2 && symval
/ scale
<= 255)
2344 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2348 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2349 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2351 SNIP (offset
+1, 1, newrel
);
2356 else if (code
== 1 && symval
== 0)
2359 SNIP (offset
, 1, R_RX_NONE
);
2362 /* Special case DSP:5 format: MOV.bwl Rsrc,dsp:5[Rdst] */
2363 else if (code
== 1 && symval
/scale
<= 31
2364 /* Decodable bits. */
2365 && (insn
[0] & 0xc3) == 0xc3
2367 && (insn
[0] & 0x30) != 0x30
2368 /* Register MSBs. */
2369 && (insn
[1] & 0x88) == 0x00)
2373 insn
[0] = 0x80 | (insn
[0] & 0x30);
2374 /* The register fields are in the right place already. */
2376 /* We can't relax this new opcode. */
2379 switch ((insn
[0] & 0x30) >> 4)
2382 newrel
= R_RX_RH_ABS5p5B
;
2385 newrel
= R_RX_RH_ABS5p5W
;
2388 newrel
= R_RX_RH_ABS5p5L
;
2392 move_reloc (irel
, srel
, -2);
2393 SNIP (2, 1, newrel
);
2397 /* These always occur alone, but the offset depends on whether
2398 it's a MEMEX opcode (0x06) or not. */
2399 if (irel
->r_addend
& RX_RELAXA_DSP14
)
2404 if (insn
[0] == 0x06)
2411 if (code
== 2 && symval
/ scale
<= 255)
2413 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2417 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2418 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2420 SNIP (offset
, 1, newrel
);
2424 else if (code
== 1 && symval
== 0)
2427 SNIP (offset
, 1, R_RX_NONE
);
2438 /* These always occur alone. */
2439 if (irel
->r_addend
& RX_RELAXA_IMM6
)
2445 /* These relocations sign-extend, so we must do signed compares. */
2446 ssymval
= (long) symval
;
2448 code
= insn
[0] & 0x03;
2450 if (code
== 0 && ssymval
<= 8388607 && ssymval
>= -8388608)
2452 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2456 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2457 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2459 SNIP (2, 1, newrel
);
2464 else if (code
== 3 && ssymval
<= 32767 && ssymval
>= -32768)
2466 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2470 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2471 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2473 SNIP (2, 1, newrel
);
2478 /* Special case UIMM8 format: CMP #uimm8,Rdst. */
2479 else if (code
== 2 && ssymval
<= 255 && ssymval
>= 16
2480 /* Decodable bits. */
2481 && (insn
[0] & 0xfc) == 0x74
2482 /* Decodable bits. */
2483 && ((insn
[1] & 0xf0) == 0x00))
2488 insn
[1] = 0x50 | (insn
[1] & 0x0f);
2490 /* We can't relax this new opcode. */
2493 if (STACK_REL_P (ELF32_R_TYPE (srel
->r_info
)))
2494 newrel
= R_RX_ABS8U
;
2496 newrel
= R_RX_DIR8U
;
2498 SNIP (2, 1, newrel
);
2502 else if (code
== 2 && ssymval
<= 127 && ssymval
>= -128)
2504 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2508 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2509 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2511 SNIP (2, 1, newrel
);
2516 /* Special case UIMM4 format: CMP, MUL, AND, OR. */
2517 else if (code
== 1 && ssymval
<= 15 && ssymval
>= 0
2518 /* Decodable bits and immediate type. */
2520 /* Decodable bits. */
2521 && (insn
[1] & 0xc0) == 0x00)
2523 static const int newop
[4] = { 1, 3, 4, 5 };
2525 insn
[0] = 0x60 | newop
[insn
[1] >> 4];
2526 /* The register number doesn't move. */
2528 /* We can't relax this new opcode. */
2531 move_reloc (irel
, srel
, -1);
2533 SNIP (2, 1, R_RX_RH_UIMM4p8
);
2537 /* Special case UIMM4 format: ADD -> ADD/SUB. */
2538 else if (code
== 1 && ssymval
<= 15 && ssymval
>= -15
2539 /* Decodable bits and immediate type. */
2541 /* Same register for source and destination. */
2542 && ((insn
[1] >> 4) == (insn
[1] & 0x0f)))
2546 /* Note that we can't turn "add $0,Rs" into a NOP
2547 because the flags need to be set right. */
2551 insn
[0] = 0x60; /* Subtract. */
2552 newrel
= R_RX_RH_UNEG4p8
;
2556 insn
[0] = 0x62; /* Add. */
2557 newrel
= R_RX_RH_UIMM4p8
;
2560 /* The register number is in the right place. */
2562 /* We can't relax this new opcode. */
2565 move_reloc (irel
, srel
, -1);
2567 SNIP (2, 1, newrel
);
2572 /* These are either matched with a DSP6 (2-byte base) or an id24
2574 if (irel
->r_addend
& RX_RELAXA_IMM12
)
2576 int dspcode
, offset
= 0;
2581 if ((insn
[0] & 0xfc) == 0xfc)
2582 dspcode
= 1; /* Just something with one byte operand. */
2584 dspcode
= insn
[0] & 3;
2587 case 0: offset
= 2; break;
2588 case 1: offset
= 3; break;
2589 case 2: offset
= 4; break;
2590 case 3: offset
= 2; break;
2593 /* These relocations sign-extend, so we must do signed compares. */
2594 ssymval
= (long) symval
;
2596 code
= (insn
[1] >> 2) & 3;
2597 if (code
== 0 && ssymval
<= 8388607 && ssymval
>= -8388608)
2599 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2603 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2604 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2606 SNIP (offset
, 1, newrel
);
2611 else if (code
== 3 && ssymval
<= 32767 && ssymval
>= -32768)
2613 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2617 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2618 if (newrel
!= ELF32_R_TYPE (srel
->r_info
))
2620 SNIP (offset
, 1, newrel
);
2625 /* Special case UIMM8 format: MOV #uimm8,Rdst. */
2626 else if (code
== 2 && ssymval
<= 255 && ssymval
>= 16
2627 /* Decodable bits. */
2629 /* Decodable bits. */
2630 && ((insn
[1] & 0x03) == 0x02))
2635 insn
[1] = 0x40 | (insn
[1] >> 4);
2637 /* We can't relax this new opcode. */
2640 if (STACK_REL_P (ELF32_R_TYPE (srel
->r_info
)))
2641 newrel
= R_RX_ABS8U
;
2643 newrel
= R_RX_DIR8U
;
2645 SNIP (2, 1, newrel
);
2649 else if (code
== 2 && ssymval
<= 127 && ssymval
>= -128)
2651 unsigned int newrel
= ELF32_R_TYPE(srel
->r_info
);
2655 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2656 if (newrel
!= ELF32_R_TYPE(srel
->r_info
))
2658 SNIP (offset
, 1, newrel
);
2663 /* Special case UIMM4 format: MOV #uimm4,Rdst. */
2664 else if (code
== 1 && ssymval
<= 15 && ssymval
>= 0
2665 /* Decodable bits. */
2667 /* Decodable bits. */
2668 && ((insn
[1] & 0x03) == 0x02))
2671 insn
[1] = insn
[1] >> 4;
2673 /* We can't relax this new opcode. */
2676 move_reloc (irel
, srel
, -1);
2678 SNIP (2, 1, R_RX_RH_UIMM4p8
);
2683 if (irel
->r_addend
& RX_RELAXA_BRA
)
2685 unsigned int newrel
= ELF32_R_TYPE (srel
->r_info
);
2687 int alignment_glue
= 0;
2691 /* Branches over alignment chunks are problematic, as
2692 deleting bytes here makes the branch *further* away. We
2693 can be agressive with branches within this alignment
2694 block, but not branches outside it. */
2695 if ((prev_alignment
== NULL
2696 || symval
< (bfd_vma
)(sec_start
+ prev_alignment
->r_offset
))
2697 && (next_alignment
== NULL
2698 || symval
> (bfd_vma
)(sec_start
+ next_alignment
->r_offset
)))
2699 alignment_glue
= section_alignment_glue
;
2701 if (ELF32_R_TYPE(srel
[1].r_info
) == R_RX_RH_RELAX
2702 && srel
[1].r_addend
& RX_RELAXA_BRA
2703 && srel
[1].r_offset
< irel
->r_offset
+ pcrel
)
2706 newrel
= next_smaller_reloc (ELF32_R_TYPE (srel
->r_info
));
2708 /* The values we compare PCREL with are not what you'd
2709 expect; they're off by a little to compensate for (1)
2710 where the reloc is relative to the insn, and (2) how much
2711 the insn is going to change when we relax it. */
2713 /* These we have to decode. */
2716 case 0x04: /* BRA pcdsp:24 */
2717 if (-32768 + alignment_glue
<= pcrel
2718 && pcrel
<= 32765 - alignment_glue
)
2721 SNIP (3, 1, newrel
);
2726 case 0x38: /* BRA pcdsp:16 */
2727 if (-128 + alignment_glue
<= pcrel
2728 && pcrel
<= 127 - alignment_glue
)
2731 SNIP (2, 1, newrel
);
2736 case 0x2e: /* BRA pcdsp:8 */
2737 /* Note that there's a risk here of shortening things so
2738 much that we no longer fit this reloc; it *should*
2739 only happen when you branch across a branch, and that
2740 branch also devolves into BRA.S. "Real" code should
2742 if (max_pcrel3
+ alignment_glue
<= pcrel
2743 && pcrel
<= 10 - alignment_glue
2747 SNIP (1, 1, newrel
);
2748 move_reloc (irel
, srel
, -1);
2753 case 0x05: /* BSR pcdsp:24 */
2754 if (-32768 + alignment_glue
<= pcrel
2755 && pcrel
<= 32765 - alignment_glue
)
2758 SNIP (1, 1, newrel
);
2763 case 0x3a: /* BEQ.W pcdsp:16 */
2764 case 0x3b: /* BNE.W pcdsp:16 */
2765 if (-128 + alignment_glue
<= pcrel
2766 && pcrel
<= 127 - alignment_glue
)
2768 insn
[0] = 0x20 | (insn
[0] & 1);
2769 SNIP (1, 1, newrel
);
2774 case 0x20: /* BEQ.B pcdsp:8 */
2775 case 0x21: /* BNE.B pcdsp:8 */
2776 if (max_pcrel3
+ alignment_glue
<= pcrel
2777 && pcrel
- alignment_glue
<= 10
2780 insn
[0] = 0x10 | ((insn
[0] & 1) << 3);
2781 SNIP (1, 1, newrel
);
2782 move_reloc (irel
, srel
, -1);
2787 case 0x16: /* synthetic BNE dsp24 */
2788 case 0x1e: /* synthetic BEQ dsp24 */
2789 if (-32767 + alignment_glue
<= pcrel
2790 && pcrel
<= 32766 - alignment_glue
2793 if (insn
[0] == 0x16)
2797 /* We snip out the bytes at the end else the reloc
2798 will get moved too, and too much. */
2799 SNIP (3, 2, newrel
);
2800 move_reloc (irel
, srel
, -1);
2806 /* Special case - synthetic conditional branches, pcrel24.
2807 Note that EQ and NE have been handled above. */
2808 if ((insn
[0] & 0xf0) == 0x20
2811 && srel
->r_offset
!= irel
->r_offset
+ 1
2812 && -32767 + alignment_glue
<= pcrel
2813 && pcrel
<= 32766 - alignment_glue
)
2817 SNIP (5, 1, newrel
);
2821 /* Special case - synthetic conditional branches, pcrel16 */
2822 if ((insn
[0] & 0xf0) == 0x20
2825 && srel
->r_offset
!= irel
->r_offset
+ 1
2826 && -127 + alignment_glue
<= pcrel
2827 && pcrel
<= 126 - alignment_glue
)
2829 int cond
= (insn
[0] & 0x0f) ^ 0x01;
2831 insn
[0] = 0x20 | cond
;
2832 /* By moving the reloc first, we avoid having
2833 delete_bytes move it also. */
2834 move_reloc (irel
, srel
, -2);
2835 SNIP (2, 3, newrel
);
2840 BFD_ASSERT (nrelocs
== 0);
2842 /* Special case - check MOV.bwl #IMM, dsp[reg] and see if we can
2843 use MOV.bwl #uimm:8, dsp:5[r7] format. This is tricky
2844 because it may have one or two relocations. */
2845 if ((insn
[0] & 0xfc) == 0xf8
2846 && (insn
[1] & 0x80) == 0x00
2847 && (insn
[0] & 0x03) != 0x03)
2849 int dcode
, icode
, reg
, ioff
, dscale
, ilen
;
2850 bfd_vma disp_val
= 0;
2852 Elf_Internal_Rela
* disp_rel
= 0;
2853 Elf_Internal_Rela
* imm_rel
= 0;
2858 dcode
= insn
[0] & 0x03;
2859 icode
= (insn
[1] >> 2) & 0x03;
2860 reg
= (insn
[1] >> 4) & 0x0f;
2862 ioff
= dcode
== 1 ? 3 : dcode
== 2 ? 4 : 2;
2864 /* Figure out what the dispacement is. */
2865 if (dcode
== 1 || dcode
== 2)
2867 /* There's a displacement. See if there's a reloc for it. */
2868 if (srel
[1].r_offset
== irel
->r_offset
+ 2)
2880 #if RX_OPCODE_BIG_ENDIAN
2881 disp_val
= insn
[2] * 256 + insn
[3];
2883 disp_val
= insn
[2] + insn
[3] * 256;
2886 switch (insn
[1] & 3)
2902 /* Figure out what the immediate is. */
2903 if (srel
[1].r_offset
== irel
->r_offset
+ ioff
)
2906 imm_val
= (long) symval
;
2911 unsigned char * ip
= insn
+ ioff
;
2916 /* For byte writes, we don't sign extend. Makes the math easier later. */
2920 imm_val
= (char) ip
[0];
2923 #if RX_OPCODE_BIG_ENDIAN
2924 imm_val
= ((char) ip
[0] << 8) | ip
[1];
2926 imm_val
= ((char) ip
[1] << 8) | ip
[0];
2930 #if RX_OPCODE_BIG_ENDIAN
2931 imm_val
= ((char) ip
[0] << 16) | (ip
[1] << 8) | ip
[2];
2933 imm_val
= ((char) ip
[2] << 16) | (ip
[1] << 8) | ip
[0];
2937 #if RX_OPCODE_BIG_ENDIAN
2938 imm_val
= ((unsigned) ip
[0] << 24) | (ip
[1] << 16) | (ip
[2] << 8) | ip
[3];
2940 imm_val
= ((unsigned) ip
[3] << 24) | (ip
[2] << 16) | (ip
[1] << 8) | ip
[0];
2974 /* The shortcut happens when the immediate is 0..255,
2975 register r0 to r7, and displacement (scaled) 0..31. */
2977 if (0 <= imm_val
&& imm_val
<= 255
2978 && 0 <= reg
&& reg
<= 7
2979 && disp_val
/ dscale
<= 31)
2981 insn
[0] = 0x3c | (insn
[1] & 0x03);
2982 insn
[1] = (((disp_val
/ dscale
) << 3) & 0x80) | (reg
<< 4) | ((disp_val
/dscale
) & 0x0f);
2987 int newrel
= R_RX_NONE
;
2992 newrel
= R_RX_RH_ABS5p8B
;
2995 newrel
= R_RX_RH_ABS5p8W
;
2998 newrel
= R_RX_RH_ABS5p8L
;
3001 disp_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (disp_rel
->r_info
), newrel
);
3002 move_reloc (irel
, disp_rel
, -1);
3006 imm_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (imm_rel
->r_info
), R_RX_DIR8U
);
3007 move_reloc (disp_rel
? disp_rel
: irel
,
3009 irel
->r_offset
- imm_rel
->r_offset
+ 2);
3012 SNIPNR (3, ilen
- 3);
3015 /* We can't relax this new opcode. */
3021 /* We can't reliably relax branches to DIR3U_PCREL unless we know
3022 whatever they're branching over won't shrink any more. If we're
3023 basically done here, do one more pass just for branches - but
3024 don't request a pass after that one! */
3025 if (!*again
&& !allow_pcrel3
)
3027 bfd_boolean ignored
;
3029 elf32_rx_relax_section (abfd
, sec
, link_info
, &ignored
, TRUE
);
3035 if (free_contents
!= NULL
)
3036 free (free_contents
);
3038 if (shndx_buf
!= NULL
)
3040 shndx_hdr
->contents
= NULL
;
3044 if (free_intsyms
!= NULL
)
3045 free (free_intsyms
);
3051 elf32_rx_relax_section_wrapper (bfd
* abfd
,
3053 struct bfd_link_info
* link_info
,
3054 bfd_boolean
* again
)
3056 return elf32_rx_relax_section (abfd
, sec
, link_info
, again
, FALSE
);
3059 /* Function to set the ELF flag bits. */
3062 rx_elf_set_private_flags (bfd
* abfd
, flagword flags
)
3064 elf_elfheader (abfd
)->e_flags
= flags
;
3065 elf_flags_init (abfd
) = TRUE
;
3069 static bfd_boolean no_warn_mismatch
= FALSE
;
3070 static bfd_boolean ignore_lma
= TRUE
;
3072 void bfd_elf32_rx_set_target_flags (bfd_boolean
, bfd_boolean
);
3075 bfd_elf32_rx_set_target_flags (bfd_boolean user_no_warn_mismatch
,
3076 bfd_boolean user_ignore_lma
)
3078 no_warn_mismatch
= user_no_warn_mismatch
;
3079 ignore_lma
= user_ignore_lma
;
3082 /* Converts FLAGS into a descriptive string.
3083 Returns a static pointer. */
3086 describe_flags (flagword flags
)
3088 static char buf
[128];
3092 if (flags
& E_FLAG_RX_64BIT_DOUBLES
)
3093 strcat (buf
, "64-bit doubles");
3095 strcat (buf
, "32-bit doubles");
3097 if (flags
& E_FLAG_RX_DSP
)
3098 strcat (buf
, ", dsp");
3100 strcat (buf
, ", no dsp");
3102 if (flags
& E_FLAG_RX_PID
)
3103 strcat (buf
, ", pid");
3105 strcat (buf
, ", no pid");
3107 if (flags
& E_FLAG_RX_ABI
)
3108 strcat (buf
, ", RX ABI");
3110 strcat (buf
, ", GCC ABI");
3112 if (flags
& E_FLAG_RX_SINSNS_SET
)
3113 strcat (buf
, flags
& E_FLAG_RX_SINSNS_YES
? ", uses String instructions" : ", bans String instructions");
3118 /* Merge backend specific data from an object file to the output
3119 object file when linking. */
3122 rx_elf_merge_private_bfd_data (bfd
* ibfd
, struct bfd_link_info
*info
)
3124 bfd
*obfd
= info
->output_bfd
;
3127 bfd_boolean error
= FALSE
;
3129 new_flags
= elf_elfheader (ibfd
)->e_flags
;
3130 old_flags
= elf_elfheader (obfd
)->e_flags
;
3132 if (!elf_flags_init (obfd
))
3134 /* First call, no flags set. */
3135 elf_flags_init (obfd
) = TRUE
;
3136 elf_elfheader (obfd
)->e_flags
= new_flags
;
3138 else if (old_flags
!= new_flags
)
3140 flagword known_flags
;
3142 if (old_flags
& E_FLAG_RX_SINSNS_SET
)
3144 if ((new_flags
& E_FLAG_RX_SINSNS_SET
) == 0)
3146 new_flags
&= ~ E_FLAG_RX_SINSNS_MASK
;
3147 new_flags
|= (old_flags
& E_FLAG_RX_SINSNS_MASK
);
3150 else if (new_flags
& E_FLAG_RX_SINSNS_SET
)
3152 old_flags
&= ~ E_FLAG_RX_SINSNS_MASK
;
3153 old_flags
|= (new_flags
& E_FLAG_RX_SINSNS_MASK
);
3156 known_flags
= E_FLAG_RX_ABI
| E_FLAG_RX_64BIT_DOUBLES
3157 | E_FLAG_RX_DSP
| E_FLAG_RX_PID
| E_FLAG_RX_SINSNS_MASK
;
3159 if ((old_flags
^ new_flags
) & known_flags
)
3161 /* Only complain if flag bits we care about do not match.
3162 Other bits may be set, since older binaries did use some
3163 deprecated flags. */
3164 if (no_warn_mismatch
)
3166 elf_elfheader (obfd
)->e_flags
= (new_flags
| old_flags
) & known_flags
;
3170 _bfd_error_handler (_("there is a conflict merging the"
3171 " ELF header flags from %pB"),
3173 _bfd_error_handler (_(" the input file's flags: %s"),
3174 describe_flags (new_flags
));
3175 _bfd_error_handler (_(" the output file's flags: %s"),
3176 describe_flags (old_flags
));
3181 elf_elfheader (obfd
)->e_flags
= new_flags
& known_flags
;
3185 bfd_set_error (bfd_error_bad_value
);
3191 rx_elf_print_private_bfd_data (bfd
* abfd
, void * ptr
)
3193 FILE * file
= (FILE *) ptr
;
3196 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
3198 /* Print normal ELF private data. */
3199 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
3201 flags
= elf_elfheader (abfd
)->e_flags
;
3202 fprintf (file
, _("private flags = 0x%lx:"), (long) flags
);
3204 fprintf (file
, "%s", describe_flags (flags
));
3208 /* Return the MACH for an e_flags value. */
3211 elf32_rx_machine (bfd
* abfd ATTRIBUTE_UNUSED
)
3213 #if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_...
3214 Need to sort out how these flag bits are used.
3215 For now we assume that the flags are OK. */
3216 if ((elf_elfheader (abfd
)->e_flags
& EF_RX_CPU_MASK
) == EF_RX_CPU_RX
)
3218 if ((elf_elfheader (abfd
)->e_flags
& E_FLAG_RX_V2
))
3219 return bfd_mach_rx_v2
;
3220 else if ((elf_elfheader (abfd
)->e_flags
& E_FLAG_RX_V3
))
3221 return bfd_mach_rx_v3
;
3229 rx_elf_object_p (bfd
* abfd
)
3233 Elf_Internal_Phdr
*phdr
= elf_tdata (abfd
)->phdr
;
3234 Elf_Internal_Ehdr
*ehdr
= elf_elfheader (abfd
);
3235 int nphdrs
= ehdr
->e_phnum
;
3237 static int saw_be
= FALSE
;
3238 bfd_vma end_phdroff
;
3240 /* We never want to automatically choose the non-swapping big-endian
3241 target. The user can only get that explicitly, such as with -I
3243 if (abfd
->xvec
== &rx_elf32_be_ns_vec
3244 && abfd
->target_defaulted
)
3247 /* BFD->target_defaulted is not set to TRUE when a target is chosen
3248 as a fallback, so we check for "scanning" to know when to stop
3249 using the non-swapping target. */
3250 if (abfd
->xvec
== &rx_elf32_be_ns_vec
3253 if (abfd
->xvec
== &rx_elf32_be_vec
)
3256 bfd_default_set_arch_mach (abfd
, bfd_arch_rx
,
3257 elf32_rx_machine (abfd
));
3259 /* For each PHDR in the object, we must find some section that
3260 corresponds (based on matching file offsets) and use its VMA
3261 information to reconstruct the p_vaddr field we clobbered when we
3263 /* If PT_LOAD headers include the ELF file header or program headers
3264 then the PT_LOAD header does not start with some section contents.
3265 Making adjustments based on the difference between sh_offset and
3266 p_offset is nonsense in such cases. Exclude them. Note that
3267 since standard linker scripts for RX do not use SIZEOF_HEADERS,
3268 the linker won't normally create PT_LOAD segments covering the
3269 headers so this is mainly for passing the ld testsuite.
3270 FIXME. Why are we looking at non-PT_LOAD headers here? */
3271 end_phdroff
= ehdr
->e_ehsize
;
3272 if (ehdr
->e_phoff
!= 0)
3273 end_phdroff
= ehdr
->e_phoff
+ nphdrs
* ehdr
->e_phentsize
;
3274 for (i
=0; i
<nphdrs
; i
++)
3276 for (u
=0; u
<elf_tdata(abfd
)->num_elf_sections
; u
++)
3278 Elf_Internal_Shdr
*sec
= elf_tdata(abfd
)->elf_sect_ptr
[u
];
3280 if (phdr
[i
].p_filesz
3281 && phdr
[i
].p_offset
>= end_phdroff
3282 && phdr
[i
].p_offset
<= (bfd_vma
) sec
->sh_offset
3284 && sec
->sh_type
!= SHT_NOBITS
3285 && (bfd_vma
)sec
->sh_offset
<= phdr
[i
].p_offset
+ (phdr
[i
].p_filesz
- 1))
3287 /* Found one! The difference between the two addresses,
3288 plus the difference between the two file offsets, is
3289 enough information to reconstruct the lma. */
3291 /* Example where they aren't:
3292 PHDR[1] = lma fffc0100 offset 00002010 size 00000100
3293 SEC[6] = vma 00000050 offset 00002050 size 00000040
3295 The correct LMA for the section is fffc0140 + (2050-2010).
3298 phdr
[i
].p_vaddr
= sec
->sh_addr
+ (sec
->sh_offset
- phdr
[i
].p_offset
);
3303 /* We must update the bfd sections as well, so we don't stop
3305 bsec
= abfd
->sections
;
3308 if (phdr
[i
].p_filesz
3309 && phdr
[i
].p_vaddr
<= bsec
->vma
3310 && bsec
->vma
<= phdr
[i
].p_vaddr
+ (phdr
[i
].p_filesz
- 1))
3312 bsec
->lma
= phdr
[i
].p_paddr
+ (bsec
->vma
- phdr
[i
].p_vaddr
);
3322 rx_linux_object_p (bfd
* abfd
)
3324 bfd_default_set_arch_mach (abfd
, bfd_arch_rx
, elf32_rx_machine (abfd
));
3331 rx_dump_symtab (bfd
* abfd
, void * internal_syms
, void * external_syms
)
3334 Elf_Internal_Sym
* isymbuf
;
3335 Elf_Internal_Sym
* isymend
;
3336 Elf_Internal_Sym
* isym
;
3337 Elf_Internal_Shdr
* symtab_hdr
;
3338 bfd_boolean free_internal
= FALSE
, free_external
= FALSE
;
3340 char * st_info_stb_str
;
3341 char * st_other_str
;
3342 char * st_shndx_str
;
3344 if (! internal_syms
)
3346 internal_syms
= bfd_malloc (1000);
3349 if (! external_syms
)
3351 external_syms
= bfd_malloc (1000);
3355 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3356 locsymcount
= symtab_hdr
->sh_size
/ get_elf_backend_data (abfd
)->s
->sizeof_sym
;
3358 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
3359 symtab_hdr
->sh_info
, 0,
3360 internal_syms
, external_syms
, NULL
);
3362 isymbuf
= internal_syms
;
3363 isymend
= isymbuf
+ locsymcount
;
3365 for (isym
= isymbuf
; isym
< isymend
; isym
++)
3367 switch (ELF_ST_TYPE (isym
->st_info
))
3369 case STT_FUNC
: st_info_str
= "STT_FUNC"; break;
3370 case STT_SECTION
: st_info_str
= "STT_SECTION"; break;
3371 case STT_FILE
: st_info_str
= "STT_FILE"; break;
3372 case STT_OBJECT
: st_info_str
= "STT_OBJECT"; break;
3373 case STT_TLS
: st_info_str
= "STT_TLS"; break;
3374 default: st_info_str
= "";
3376 switch (ELF_ST_BIND (isym
->st_info
))
3378 case STB_LOCAL
: st_info_stb_str
= "STB_LOCAL"; break;
3379 case STB_GLOBAL
: st_info_stb_str
= "STB_GLOBAL"; break;
3380 default: st_info_stb_str
= "";
3382 switch (ELF_ST_VISIBILITY (isym
->st_other
))
3384 case STV_DEFAULT
: st_other_str
= "STV_DEFAULT"; break;
3385 case STV_INTERNAL
: st_other_str
= "STV_INTERNAL"; break;
3386 case STV_PROTECTED
: st_other_str
= "STV_PROTECTED"; break;
3387 default: st_other_str
= "";
3389 switch (isym
->st_shndx
)
3391 case SHN_ABS
: st_shndx_str
= "SHN_ABS"; break;
3392 case SHN_COMMON
: st_shndx_str
= "SHN_COMMON"; break;
3393 case SHN_UNDEF
: st_shndx_str
= "SHN_UNDEF"; break;
3394 default: st_shndx_str
= "";
3397 printf ("isym = %p st_value = %lx st_size = %lx st_name = (%lu) %s "
3398 "st_info = (%d) %s %s st_other = (%d) %s st_shndx = (%d) %s\n",
3400 (unsigned long) isym
->st_value
,
3401 (unsigned long) isym
->st_size
,
3403 bfd_elf_string_from_elf_section (abfd
, symtab_hdr
->sh_link
,
3405 isym
->st_info
, st_info_str
, st_info_stb_str
,
3406 isym
->st_other
, st_other_str
,
3407 isym
->st_shndx
, st_shndx_str
);
3410 free (internal_syms
);
3412 free (external_syms
);
3416 rx_get_reloc (long reloc
)
3418 if (0 <= reloc
&& reloc
< R_RX_max
)
3419 return rx_elf_howto_table
[reloc
].name
;
3425 /* We must take care to keep the on-disk copy of any code sections
3426 that are fully linked swapped if the target is big endian, to match
3427 the Renesas tools. */
3429 /* The rule is: big endian object that are final-link executables,
3430 have code sections stored with 32-bit words swapped relative to
3431 what you'd get by default. */
3434 rx_get_section_contents (bfd
* abfd
,
3438 bfd_size_type count
)
3440 int exec
= (abfd
->flags
& EXEC_P
) ? 1 : 0;
3441 int s_code
= (section
->flags
& SEC_CODE
) ? 1 : 0;
3445 fprintf (stderr
, "dj: get %ld %ld from %s %s e%d sc%d %08lx:%08lx\n",
3446 (long) offset
, (long) count
, section
->name
,
3447 bfd_big_endian(abfd
) ? "be" : "le",
3448 exec
, s_code
, (long unsigned) section
->filepos
,
3449 (long unsigned) offset
);
3452 if (exec
&& s_code
&& bfd_big_endian (abfd
))
3454 char * cloc
= (char *) location
;
3455 bfd_size_type cnt
, end_cnt
;
3459 /* Fetch and swap unaligned bytes at the beginning. */
3464 rv
= _bfd_generic_get_section_contents (abfd
, section
, buf
,
3469 bfd_putb32 (bfd_getl32 (buf
), buf
);
3471 cnt
= 4 - (offset
% 4);
3475 memcpy (location
, buf
+ (offset
% 4), cnt
);
3482 end_cnt
= count
% 4;
3484 /* Fetch and swap the middle bytes. */
3487 rv
= _bfd_generic_get_section_contents (abfd
, section
, cloc
, offset
,
3492 for (cnt
= count
; cnt
>= 4; cnt
-= 4, cloc
+= 4)
3493 bfd_putb32 (bfd_getl32 (cloc
), cloc
);
3496 /* Fetch and swap the end bytes. */
3501 /* Fetch the end bytes. */
3502 rv
= _bfd_generic_get_section_contents (abfd
, section
, buf
,
3503 offset
+ count
- end_cnt
, 4);
3507 bfd_putb32 (bfd_getl32 (buf
), buf
);
3508 memcpy (cloc
, buf
, end_cnt
);
3512 rv
= _bfd_generic_get_section_contents (abfd
, section
, location
, offset
, count
);
3519 rx2_set_section_contents (bfd
* abfd
,
3521 const void * location
,
3523 bfd_size_type count
)
3527 fprintf (stderr
, " set sec %s %08x loc %p offset %#x count %#x\n",
3528 section
->name
, (unsigned) section
->vma
, location
, (int) offset
, (int) count
);
3529 for (i
= 0; i
< count
; i
++)
3531 if (i
% 16 == 0 && i
> 0)
3532 fprintf (stderr
, "\n");
3534 if (i
% 16 && i
% 4 == 0)
3535 fprintf (stderr
, " ");
3538 fprintf (stderr
, " %08x:", (int) (section
->vma
+ offset
+ i
));
3540 fprintf (stderr
, " %02x", ((unsigned char *) location
)[i
]);
3542 fprintf (stderr
, "\n");
3544 return _bfd_elf_set_section_contents (abfd
, section
, location
, offset
, count
);
3546 #define _bfd_elf_set_section_contents rx2_set_section_contents
3550 rx_set_section_contents (bfd
* abfd
,
3552 const void * location
,
3554 bfd_size_type count
)
3556 bfd_boolean exec
= (abfd
->flags
& EXEC_P
) ? TRUE
: FALSE
;
3557 bfd_boolean s_code
= (section
->flags
& SEC_CODE
) ? TRUE
: FALSE
;
3559 char * swapped_data
= NULL
;
3561 bfd_vma caddr
= section
->vma
+ offset
;
3563 bfd_size_type scount
;
3568 fprintf (stderr
, "\ndj: set %ld %ld to %s %s e%d sc%d\n",
3569 (long) offset
, (long) count
, section
->name
,
3570 bfd_big_endian (abfd
) ? "be" : "le",
3573 for (i
= 0; i
< count
; i
++)
3575 int a
= section
->vma
+ offset
+ i
;
3577 if (a
% 16 == 0 && a
> 0)
3578 fprintf (stderr
, "\n");
3580 if (a
% 16 && a
% 4 == 0)
3581 fprintf (stderr
, " ");
3583 if (a
% 16 == 0 || i
== 0)
3584 fprintf (stderr
, " %08x:", (int) (section
->vma
+ offset
+ i
));
3586 fprintf (stderr
, " %02x", ((unsigned char *) location
)[i
]);
3589 fprintf (stderr
, "\n");
3592 if (! exec
|| ! s_code
|| ! bfd_big_endian (abfd
))
3593 return _bfd_elf_set_section_contents (abfd
, section
, location
, offset
, count
);
3595 while (count
> 0 && caddr
> 0 && caddr
% 4)
3599 case 0: faddr
= offset
+ 3; break;
3600 case 1: faddr
= offset
+ 1; break;
3601 case 2: faddr
= offset
- 1; break;
3602 case 3: faddr
= offset
- 3; break;
3605 rv
= _bfd_elf_set_section_contents (abfd
, section
, location
, faddr
, 1);
3609 location
= (bfd_byte
*) location
+ 1;
3615 scount
= (int)(count
/ 4) * 4;
3618 char * cloc
= (char *) location
;
3620 swapped_data
= (char *) bfd_alloc (abfd
, count
);
3622 for (i
= 0; i
< count
; i
+= 4)
3624 bfd_vma v
= bfd_getl32 (cloc
+ i
);
3625 bfd_putb32 (v
, swapped_data
+ i
);
3628 rv
= _bfd_elf_set_section_contents (abfd
, section
, swapped_data
, offset
, scount
);
3635 location
= (bfd_byte
*) location
+ scount
;
3640 caddr
= section
->vma
+ offset
;
3645 case 0: faddr
= offset
+ 3; break;
3646 case 1: faddr
= offset
+ 1; break;
3647 case 2: faddr
= offset
- 1; break;
3648 case 3: faddr
= offset
- 3; break;
3650 rv
= _bfd_elf_set_section_contents (abfd
, section
, location
, faddr
, 1);
3654 location
= (bfd_byte
*) location
+ 1;
3665 rx_final_link (bfd
* abfd
, struct bfd_link_info
* info
)
3669 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
3672 fprintf (stderr
, "sec %s fl %x vma %lx lma %lx size %lx raw %lx\n",
3673 o
->name
, o
->flags
, o
->vma
, o
->lma
, o
->size
, o
->rawsize
);
3675 if (o
->flags
& SEC_CODE
3676 && bfd_big_endian (abfd
)
3680 fprintf (stderr
, "adjusting...\n");
3682 o
->size
+= 4 - (o
->size
% 4);
3686 return bfd_elf_final_link (abfd
, info
);
3690 elf32_rx_modify_headers (bfd
*abfd
, struct bfd_link_info
*info
)
3692 const struct elf_backend_data
* bed
;
3693 struct elf_obj_tdata
* tdata
;
3694 Elf_Internal_Phdr
* phdr
;
3698 bed
= get_elf_backend_data (abfd
);
3699 tdata
= elf_tdata (abfd
);
3701 count
= elf_program_header_size (abfd
) / bed
->s
->sizeof_phdr
;
3704 for (i
= count
; i
-- != 0;)
3705 if (phdr
[i
].p_type
== PT_LOAD
)
3707 /* The Renesas tools expect p_paddr to be zero. However,
3708 there is no other way to store the writable data in ROM for
3709 startup initialization. So, we let the linker *think*
3710 we're using paddr and vaddr the "usual" way, but at the
3711 last minute we move the paddr into the vaddr (which is what
3712 the simulator uses) and zero out paddr. Note that this
3713 does not affect the section headers, just the program
3714 headers. We hope. */
3715 phdr
[i
].p_vaddr
= phdr
[i
].p_paddr
;
3716 #if 0 /* If we zero out p_paddr, then the LMA in the section table
3718 phdr
[i
].p_paddr
= 0;
3722 return _bfd_elf_modify_headers (abfd
, info
);
3725 /* The default literal sections should always be marked as "code" (i.e.,
3726 SHF_EXECINSTR). This is particularly important for big-endian mode
3727 when we do not want their contents byte reversed. */
3728 static const struct bfd_elf_special_section elf32_rx_special_sections
[] =
3730 { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY
, SHF_ALLOC
+ SHF_EXECINSTR
},
3731 { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY
, SHF_ALLOC
+ SHF_EXECINSTR
},
3732 { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY
, SHF_ALLOC
+ SHF_EXECINSTR
},
3733 { NULL
, 0, 0, 0, 0 }
3738 struct bfd_link_info
*info
;
3739 bfd_vma table_start
;
3741 bfd_vma
*table_handlers
;
3742 bfd_vma table_default_handler
;
3743 struct bfd_link_hash_entry
**table_entries
;
3744 struct bfd_link_hash_entry
*table_default_entry
;
3749 rx_table_find (struct bfd_hash_entry
*vent
, void *vinfo
)
3751 RX_Table_Info
*info
= (RX_Table_Info
*)vinfo
;
3752 struct bfd_link_hash_entry
*ent
= (struct bfd_link_hash_entry
*)vent
;
3753 const char *name
; /* of the symbol we've found */
3757 const char *tname
; /* name of the table */
3758 bfd_vma start_addr
, end_addr
;
3760 struct bfd_link_hash_entry
* h
;
3762 /* We're looking for globally defined symbols of the form
3763 $tablestart$<NAME>. */
3764 if (ent
->type
!= bfd_link_hash_defined
3765 && ent
->type
!= bfd_link_hash_defweak
)
3768 name
= ent
->root
.string
;
3769 sec
= ent
->u
.def
.section
;
3772 if (strncmp (name
, "$tablestart$", 12))
3775 sec
->flags
|= SEC_KEEP
;
3779 start_addr
= ent
->u
.def
.value
;
3781 /* At this point, we can't build the table but we can (and must)
3782 find all the related symbols and mark their sections as SEC_KEEP
3783 so we don't garbage collect them. */
3785 buf
= (char *) malloc (12 + 10 + strlen (tname
));
3787 sprintf (buf
, "$tableend$%s", tname
);
3788 h
= bfd_link_hash_lookup (info
->info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
3789 if (!h
|| (h
->type
!= bfd_link_hash_defined
3790 && h
->type
!= bfd_link_hash_defweak
))
3792 /* xgettext:c-format */
3793 _bfd_error_handler (_("%pB:%pA: table %s missing corresponding %s"),
3794 abfd
, sec
, name
, buf
);
3798 if (h
->u
.def
.section
!= ent
->u
.def
.section
)
3800 /* xgettext:c-format */
3801 _bfd_error_handler (_("%pB:%pA: %s and %s must be in the same input section"),
3802 h
->u
.def
.section
->owner
, h
->u
.def
.section
,
3807 end_addr
= h
->u
.def
.value
;
3809 sprintf (buf
, "$tableentry$default$%s", tname
);
3810 h
= bfd_link_hash_lookup (info
->info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
3811 if (h
&& (h
->type
== bfd_link_hash_defined
3812 || h
->type
== bfd_link_hash_defweak
))
3814 h
->u
.def
.section
->flags
|= SEC_KEEP
;
3817 for (idx
= 0; idx
< (int) (end_addr
- start_addr
) / 4; idx
++)
3819 sprintf (buf
, "$tableentry$%d$%s", idx
, tname
);
3820 h
= bfd_link_hash_lookup (info
->info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
3821 if (h
&& (h
->type
== bfd_link_hash_defined
3822 || h
->type
== bfd_link_hash_defweak
))
3824 h
->u
.def
.section
->flags
|= SEC_KEEP
;
3828 /* Return TRUE to keep scanning, FALSE to end the traversal. */
3832 /* We need to check for table entry symbols and build the tables, and
3833 we need to do it before the linker does garbage collection. This function is
3834 called once per input object file. */
3837 (bfd
* abfd ATTRIBUTE_UNUSED
,
3838 struct bfd_link_info
* info ATTRIBUTE_UNUSED
)
3840 RX_Table_Info stuff
;
3844 bfd_hash_traverse (&(info
->hash
->table
), rx_table_find
, &stuff
);
3851 rx_table_map_2 (struct bfd_hash_entry
*vent
, void *vinfo
)
3853 RX_Table_Info
*info
= (RX_Table_Info
*)vinfo
;
3854 struct bfd_link_hash_entry
*ent
= (struct bfd_link_hash_entry
*)vent
;
3859 /* See if the symbol ENT has an address listed in the table, and
3860 isn't a debug/special symbol. If so, put it in the table. */
3862 if (ent
->type
!= bfd_link_hash_defined
3863 && ent
->type
!= bfd_link_hash_defweak
)
3866 name
= ent
->root
.string
;
3868 if (name
[0] == '$' || name
[0] == '.' || name
[0] < ' ')
3871 addr
= (ent
->u
.def
.value
3872 + ent
->u
.def
.section
->output_section
->vma
3873 + ent
->u
.def
.section
->output_offset
);
3875 for (idx
= 0; idx
< info
->table_size
; idx
++)
3876 if (addr
== info
->table_handlers
[idx
])
3877 info
->table_entries
[idx
] = ent
;
3879 if (addr
== info
->table_default_handler
)
3880 info
->table_default_entry
= ent
;
3886 rx_table_map (struct bfd_hash_entry
*vent
, void *vinfo
)
3888 RX_Table_Info
*info
= (RX_Table_Info
*)vinfo
;
3889 struct bfd_link_hash_entry
*ent
= (struct bfd_link_hash_entry
*)vent
;
3890 const char *name
; /* of the symbol we've found */
3892 const char *tname
; /* name of the table */
3893 bfd_vma start_addr
, end_addr
;
3895 struct bfd_link_hash_entry
* h
;
3898 /* We're looking for globally defined symbols of the form
3899 $tablestart$<NAME>. */
3900 if (ent
->type
!= bfd_link_hash_defined
3901 && ent
->type
!= bfd_link_hash_defweak
)
3904 name
= ent
->root
.string
;
3906 if (strncmp (name
, "$tablestart$", 12))
3910 start_addr
= (ent
->u
.def
.value
3911 + ent
->u
.def
.section
->output_section
->vma
3912 + ent
->u
.def
.section
->output_offset
);
3914 buf
= (char *) malloc (12 + 10 + strlen (tname
));
3916 sprintf (buf
, "$tableend$%s", tname
);
3917 end_addr
= get_symbol_value_maybe (buf
, info
->info
);
3919 sprintf (buf
, "$tableentry$default$%s", tname
);
3920 h
= bfd_link_hash_lookup (info
->info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
3923 info
->table_default_handler
= (h
->u
.def
.value
3924 + h
->u
.def
.section
->output_section
->vma
3925 + h
->u
.def
.section
->output_offset
);
3928 /* Zero is a valid handler address! */
3929 info
->table_default_handler
= (bfd_vma
) (-1);
3930 info
->table_default_entry
= NULL
;
3932 info
->table_start
= start_addr
;
3933 info
->table_size
= (int) (end_addr
- start_addr
) / 4;
3934 info
->table_handlers
= (bfd_vma
*) malloc (info
->table_size
* sizeof (bfd_vma
));
3935 info
->table_entries
= (struct bfd_link_hash_entry
**) malloc (info
->table_size
* sizeof (struct bfd_link_hash_entry
));
3937 for (idx
= 0; idx
< (int) (end_addr
- start_addr
) / 4; idx
++)
3939 sprintf (buf
, "$tableentry$%d$%s", idx
, tname
);
3940 h
= bfd_link_hash_lookup (info
->info
->hash
, buf
, FALSE
, FALSE
, TRUE
);
3941 if (h
&& (h
->type
== bfd_link_hash_defined
3942 || h
->type
== bfd_link_hash_defweak
))
3944 info
->table_handlers
[idx
] = (h
->u
.def
.value
3945 + h
->u
.def
.section
->output_section
->vma
3946 + h
->u
.def
.section
->output_offset
);
3949 info
->table_handlers
[idx
] = info
->table_default_handler
;
3950 info
->table_entries
[idx
] = NULL
;
3955 bfd_hash_traverse (&(info
->info
->hash
->table
), rx_table_map_2
, info
);
3957 fprintf (info
->mapfile
, "\nRX Vector Table: %s has %d entries at 0x%08" BFD_VMA_FMT
"x\n\n",
3958 tname
, info
->table_size
, start_addr
);
3960 if (info
->table_default_entry
)
3961 fprintf (info
->mapfile
, " default handler is: %s at 0x%08" BFD_VMA_FMT
"x\n",
3962 info
->table_default_entry
->root
.string
,
3963 info
->table_default_handler
);
3964 else if (info
->table_default_handler
!= (bfd_vma
)(-1))
3965 fprintf (info
->mapfile
, " default handler is at 0x%08" BFD_VMA_FMT
"x\n",
3966 info
->table_default_handler
);
3968 fprintf (info
->mapfile
, " no default handler\n");
3971 for (idx
= 0; idx
< info
->table_size
; idx
++)
3973 if (info
->table_handlers
[idx
] == info
->table_default_handler
)
3976 fprintf (info
->mapfile
, " . . .\n");
3982 fprintf (info
->mapfile
, " 0x%08" BFD_VMA_FMT
"x [%3d] ", start_addr
+ 4 * idx
, idx
);
3984 if (info
->table_handlers
[idx
] == (bfd_vma
) (-1))
3985 fprintf (info
->mapfile
, "(no handler found)\n");
3987 else if (info
->table_handlers
[idx
] == info
->table_default_handler
)
3989 if (info
->table_default_entry
)
3990 fprintf (info
->mapfile
, "(default)\n");
3992 fprintf (info
->mapfile
, "(default)\n");
3995 else if (info
->table_entries
[idx
])
3997 fprintf (info
->mapfile
, "0x%08" BFD_VMA_FMT
"x %s\n", info
->table_handlers
[idx
], info
->table_entries
[idx
]->root
.string
);
4002 fprintf (info
->mapfile
, "0x%08" BFD_VMA_FMT
"x ???\n", info
->table_handlers
[idx
]);
4006 fprintf (info
->mapfile
, " . . .\n");
4012 rx_additional_link_map_text (bfd
*obfd
, struct bfd_link_info
*info
, FILE *mapfile
)
4014 /* We scan the symbol table looking for $tableentry$'s, and for
4015 each, try to deduce which handlers go with which entries. */
4017 RX_Table_Info stuff
;
4021 stuff
.mapfile
= mapfile
;
4022 bfd_hash_traverse (&(info
->hash
->table
), rx_table_map
, &stuff
);
4026 #define ELF_ARCH bfd_arch_rx
4027 #define ELF_MACHINE_CODE EM_RX
4028 #define ELF_MAXPAGESIZE 0x1000
4030 #define TARGET_BIG_SYM rx_elf32_be_vec
4031 #define TARGET_BIG_NAME "elf32-rx-be"
4033 #define TARGET_LITTLE_SYM rx_elf32_le_vec
4034 #define TARGET_LITTLE_NAME "elf32-rx-le"
4036 #define elf_info_to_howto_rel NULL
4037 #define elf_info_to_howto rx_info_to_howto_rela
4038 #define elf_backend_object_p rx_elf_object_p
4039 #define elf_backend_relocate_section rx_elf_relocate_section
4040 #define elf_symbol_leading_char ('_')
4041 #define elf_backend_can_gc_sections 1
4042 #define elf_backend_modify_headers elf32_rx_modify_headers
4044 #define bfd_elf32_bfd_reloc_type_lookup rx_reloc_type_lookup
4045 #define bfd_elf32_bfd_reloc_name_lookup rx_reloc_name_lookup
4046 #define bfd_elf32_bfd_set_private_flags rx_elf_set_private_flags
4047 #define bfd_elf32_bfd_merge_private_bfd_data rx_elf_merge_private_bfd_data
4048 #define bfd_elf32_bfd_print_private_bfd_data rx_elf_print_private_bfd_data
4049 #define bfd_elf32_get_section_contents rx_get_section_contents
4050 #define bfd_elf32_set_section_contents rx_set_section_contents
4051 #define bfd_elf32_bfd_final_link rx_final_link
4052 #define bfd_elf32_bfd_relax_section elf32_rx_relax_section_wrapper
4053 #define elf_backend_special_sections elf32_rx_special_sections
4054 #define elf_backend_check_directives rx_check_directives
4056 #include "elf32-target.h"
4058 /* We define a second big-endian target that doesn't have the custom
4059 section get/set hooks, for times when we want to preserve the
4060 pre-swapped .text sections (like objcopy). */
4062 #undef TARGET_BIG_SYM
4063 #define TARGET_BIG_SYM rx_elf32_be_ns_vec
4064 #undef TARGET_BIG_NAME
4065 #define TARGET_BIG_NAME "elf32-rx-be-ns"
4066 #undef TARGET_LITTLE_SYM
4068 #undef bfd_elf32_get_section_contents
4069 #undef bfd_elf32_set_section_contents
4072 #define elf32_bed elf32_rx_be_ns_bed
4074 #include "elf32-target.h"
4076 #undef TARGET_LITTLE_SYM
4077 #define TARGET_LITTLE_SYM rx_elf32_linux_le_vec
4078 #undef TARGET_LITTLE_NAME
4079 #define TARGET_LITTLE_NAME "elf32-rx-linux"
4080 #undef TARGET_BIG_SYM
4081 #undef TARGET_BIG_NAME
4083 #undef elf_backend_object_p
4084 #define elf_backend_object_p rx_linux_object_p
4085 #undef elf_symbol_leading_char
4087 #define elf32_bed elf32_rx_le_linux_bed
4089 #include "elf32-target.h"