1 /* MIPS-specific support for 32-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 Most of the information added by Ian Lance Taylor, Cygnus Support,
7 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
8 <mark@codesourcery.com>
9 Traditional MIPS targets support added by Koundinya.K, Dansk Data
10 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
29 different MIPS ELF from other targets. This matters when linking.
30 This file supports both, switching at runtime. */
40 /* Get the ECOFF swapping routines. */
42 #include "coff/symconst.h"
43 #include "coff/internal.h"
44 #include "coff/ecoff.h"
45 #include "coff/mips.h"
46 #define ECOFF_SIGNED_32
47 #include "ecoffswap.h"
49 /* This structure is used to hold .got information when linking. It
50 is stored in the tdata field of the bfd_elf_section_data structure. */
54 /* The global symbol in the GOT with the lowest index in the dynamic
56 struct elf_link_hash_entry
*global_gotsym
;
57 /* The number of global .got entries. */
58 unsigned int global_gotno
;
59 /* The number of local .got entries. */
60 unsigned int local_gotno
;
61 /* The number of local .got entries we have used. */
62 unsigned int assigned_gotno
;
65 /* The MIPS ELF linker needs additional information for each symbol in
66 the global hash table. */
68 struct mips_elf_link_hash_entry
70 struct elf_link_hash_entry root
;
72 /* External symbol information. */
75 /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against
77 unsigned int possibly_dynamic_relocs
;
79 /* If the R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 reloc is against
80 a readonly section. */
81 boolean readonly_reloc
;
83 /* The index of the first dynamic relocation (in the .rel.dyn
84 section) against this symbol. */
85 unsigned int min_dyn_reloc_index
;
87 /* We must not create a stub for a symbol that has relocations
88 related to taking the function's address, i.e. any but
89 R_MIPS_CALL*16 ones -- see "MIPS ABI Supplement, 3rd Edition",
93 /* If there is a stub that 32 bit functions should use to call this
94 16 bit function, this points to the section containing the stub. */
97 /* Whether we need the fn_stub; this is set if this symbol appears
98 in any relocs other than a 16 bit call. */
101 /* If there is a stub that 16 bit functions should use to call this
102 32 bit function, this points to the section containing the stub. */
105 /* This is like the call_stub field, but it is used if the function
106 being called returns a floating point value. */
107 asection
*call_fp_stub
;
110 static bfd_reloc_status_type mips32_64bit_reloc
111 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
112 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_lookup
113 PARAMS ((bfd
*, bfd_reloc_code_real_type
));
114 static reloc_howto_type
*mips_rtype_to_howto
115 PARAMS ((unsigned int));
116 static void mips_info_to_howto_rel
117 PARAMS ((bfd
*, arelent
*, Elf32_Internal_Rel
*));
118 static void mips_info_to_howto_rela
119 PARAMS ((bfd
*, arelent
*, Elf32_Internal_Rela
*));
120 static void bfd_mips_elf32_swap_gptab_in
121 PARAMS ((bfd
*, const Elf32_External_gptab
*, Elf32_gptab
*));
122 static void bfd_mips_elf32_swap_gptab_out
123 PARAMS ((bfd
*, const Elf32_gptab
*, Elf32_External_gptab
*));
125 static void bfd_mips_elf_swap_msym_in
126 PARAMS ((bfd
*, const Elf32_External_Msym
*, Elf32_Internal_Msym
*));
128 static void bfd_mips_elf_swap_msym_out
129 PARAMS ((bfd
*, const Elf32_Internal_Msym
*, Elf32_External_Msym
*));
130 static boolean mips_elf_sym_is_global
PARAMS ((bfd
*, asymbol
*));
131 static boolean mips_elf_create_procedure_table
132 PARAMS ((PTR
, bfd
*, struct bfd_link_info
*, asection
*,
133 struct ecoff_debug_info
*));
134 static INLINE
int elf_mips_isa
PARAMS ((flagword
));
135 static INLINE
int elf_mips_mach
PARAMS ((flagword
));
136 static INLINE
char* elf_mips_abi_name
PARAMS ((bfd
*));
137 static boolean mips_elf_is_local_label_name
138 PARAMS ((bfd
*, const char *));
139 static struct bfd_hash_entry
*mips_elf_link_hash_newfunc
140 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
141 static int gptab_compare
PARAMS ((const void *, const void *));
142 static bfd_reloc_status_type mips16_jump_reloc
143 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
144 static bfd_reloc_status_type mips16_gprel_reloc
145 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
146 static boolean mips_elf_create_compact_rel_section
147 PARAMS ((bfd
*, struct bfd_link_info
*));
148 static boolean mips_elf_create_got_section
149 PARAMS ((bfd
*, struct bfd_link_info
*));
150 static bfd_reloc_status_type mips_elf_final_gp
151 PARAMS ((bfd
*, asymbol
*, boolean
, char **, bfd_vma
*));
152 static bfd_byte
*elf32_mips_get_relocated_section_contents
153 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
154 bfd_byte
*, boolean
, asymbol
**));
155 static asection
*mips_elf_create_msym_section
157 static void mips_elf_irix6_finish_dynamic_symbol
158 PARAMS ((bfd
*, const char *, Elf_Internal_Sym
*));
159 static bfd_vma mips_elf_sign_extend
PARAMS ((bfd_vma
, int));
160 static boolean mips_elf_overflow_p
PARAMS ((bfd_vma
, int));
161 static bfd_vma mips_elf_high
PARAMS ((bfd_vma
));
162 static bfd_vma mips_elf_higher
PARAMS ((bfd_vma
));
163 static bfd_vma mips_elf_highest
PARAMS ((bfd_vma
));
164 static bfd_vma mips_elf_global_got_index
165 PARAMS ((bfd
*, struct elf_link_hash_entry
*));
166 static bfd_vma mips_elf_local_got_index
167 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
));
168 static bfd_vma mips_elf_got_offset_from_index
169 PARAMS ((bfd
*, bfd
*, bfd_vma
));
170 static boolean mips_elf_record_global_got_symbol
171 PARAMS ((struct elf_link_hash_entry
*, struct bfd_link_info
*,
172 struct mips_got_info
*));
173 static bfd_vma mips_elf_got_page
174 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
, bfd_vma
*));
175 static const Elf_Internal_Rela
*mips_elf_next_relocation
176 PARAMS ((unsigned int, const Elf_Internal_Rela
*,
177 const Elf_Internal_Rela
*));
178 static bfd_reloc_status_type mips_elf_calculate_relocation
179 PARAMS ((bfd
*, bfd
*, asection
*, struct bfd_link_info
*,
180 const Elf_Internal_Rela
*, bfd_vma
, reloc_howto_type
*,
181 Elf_Internal_Sym
*, asection
**, bfd_vma
*, const char **,
183 static bfd_vma mips_elf_obtain_contents
184 PARAMS ((reloc_howto_type
*, const Elf_Internal_Rela
*, bfd
*, bfd_byte
*));
185 static boolean mips_elf_perform_relocation
186 PARAMS ((struct bfd_link_info
*, reloc_howto_type
*,
187 const Elf_Internal_Rela
*, bfd_vma
,
188 bfd
*, asection
*, bfd_byte
*, boolean
));
189 static boolean mips_elf_assign_gp
PARAMS ((bfd
*, bfd_vma
*));
190 static boolean mips_elf_sort_hash_table_f
191 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
192 static boolean mips_elf_sort_hash_table
193 PARAMS ((struct bfd_link_info
*, unsigned long));
194 static asection
* mips_elf_got_section
PARAMS ((bfd
*));
195 static struct mips_got_info
*mips_elf_got_info
196 PARAMS ((bfd
*, asection
**));
197 static boolean mips_elf_local_relocation_p
198 PARAMS ((bfd
*, const Elf_Internal_Rela
*, asection
**, boolean
));
199 static bfd_vma mips_elf_create_local_got_entry
200 PARAMS ((bfd
*, struct mips_got_info
*, asection
*, bfd_vma
));
201 static bfd_vma mips_elf_got16_entry
202 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
, boolean
));
203 static boolean mips_elf_create_dynamic_relocation
204 PARAMS ((bfd
*, struct bfd_link_info
*, const Elf_Internal_Rela
*,
205 struct mips_elf_link_hash_entry
*, asection
*,
206 bfd_vma
, bfd_vma
*, asection
*));
207 static void mips_elf_allocate_dynamic_relocations
208 PARAMS ((bfd
*, unsigned int));
209 static boolean mips_elf_stub_section_p
210 PARAMS ((bfd
*, asection
*));
211 static int sort_dynamic_relocs
212 PARAMS ((const void *, const void *));
214 extern const bfd_target bfd_elf32_tradbigmips_vec
;
215 extern const bfd_target bfd_elf32_tradlittlemips_vec
;
217 extern const bfd_target bfd_elf64_tradbigmips_vec
;
218 extern const bfd_target bfd_elf64_tradlittlemips_vec
;
221 /* The level of IRIX compatibility we're striving for. */
229 /* This will be used when we sort the dynamic relocation records. */
230 static bfd
*reldyn_sorting_bfd
;
232 /* Nonzero if ABFD is using the N32 ABI. */
234 #define ABI_N32_P(abfd) \
235 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
237 /* Nonzero if ABFD is using the 64-bit ABI. */
238 #define ABI_64_P(abfd) \
239 ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0)
241 /* Depending on the target vector we generate some version of Irix
242 executables or "normal" MIPS ELF ABI executables. */
244 #define IRIX_COMPAT(abfd) \
245 (((abfd->xvec == &bfd_elf64_tradbigmips_vec) || \
246 (abfd->xvec == &bfd_elf64_tradlittlemips_vec) || \
247 (abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
248 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
249 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
251 #define IRIX_COMPAT(abfd) \
252 (((abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
253 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
254 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
257 /* Whether we are trying to be compatible with IRIX at all. */
258 #define SGI_COMPAT(abfd) \
259 (IRIX_COMPAT (abfd) != ict_none)
261 /* The name of the msym section. */
262 #define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym"
264 /* The name of the srdata section. */
265 #define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata"
267 /* The name of the options section. */
268 #define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \
269 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options")
271 /* The name of the stub section. */
272 #define MIPS_ELF_STUB_SECTION_NAME(abfd) \
273 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub")
275 /* The name of the dynamic relocation section. */
276 #define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn"
278 /* The size of an external REL relocation. */
279 #define MIPS_ELF_REL_SIZE(abfd) \
280 (get_elf_backend_data (abfd)->s->sizeof_rel)
282 /* The size of an external dynamic table entry. */
283 #define MIPS_ELF_DYN_SIZE(abfd) \
284 (get_elf_backend_data (abfd)->s->sizeof_dyn)
286 /* The size of a GOT entry. */
287 #define MIPS_ELF_GOT_SIZE(abfd) \
288 (get_elf_backend_data (abfd)->s->arch_size / 8)
290 /* The size of a symbol-table entry. */
291 #define MIPS_ELF_SYM_SIZE(abfd) \
292 (get_elf_backend_data (abfd)->s->sizeof_sym)
294 /* The default alignment for sections, as a power of two. */
295 #define MIPS_ELF_LOG_FILE_ALIGN(abfd) \
296 (get_elf_backend_data (abfd)->s->file_align == 8 ? 3 : 2)
298 /* Get word-sized data. */
299 #define MIPS_ELF_GET_WORD(abfd, ptr) \
300 (ABI_64_P (abfd) ? bfd_get_64 (abfd, ptr) : bfd_get_32 (abfd, ptr))
302 /* Put out word-sized data. */
303 #define MIPS_ELF_PUT_WORD(abfd, val, ptr) \
305 ? bfd_put_64 (abfd, val, ptr) \
306 : bfd_put_32 (abfd, val, ptr))
308 /* Add a dynamic symbol table-entry. */
310 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
311 (ABI_64_P (elf_hash_table (info)->dynobj) \
312 ? bfd_elf64_add_dynamic_entry (info, tag, val) \
313 : bfd_elf32_add_dynamic_entry (info, tag, val))
315 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
316 (ABI_64_P (elf_hash_table (info)->dynobj) \
317 ? (abort (), false) \
318 : bfd_elf32_add_dynamic_entry (info, tag, val))
321 /* The number of local .got entries we reserve. */
322 #define MIPS_RESERVED_GOTNO (2)
324 /* Instructions which appear in a stub. For some reason the stub is
325 slightly different on an SGI system. */
326 #define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000)
327 #define STUB_LW(abfd) \
330 ? 0xdf998010 /* ld t9,0x8010(gp) */ \
331 : 0x8f998010) /* lw t9,0x8010(gp) */ \
332 : 0x8f998010) /* lw t9,0x8000(gp) */
333 #define STUB_MOVE(abfd) \
334 (SGI_COMPAT (abfd) ? 0x03e07825 : 0x03e07821) /* move t7,ra */
335 #define STUB_JALR 0x0320f809 /* jal t9 */
336 #define STUB_LI16(abfd) \
337 (SGI_COMPAT (abfd) ? 0x34180000 : 0x24180000) /* ori t8,zero,0 */
338 #define MIPS_FUNCTION_STUB_SIZE (16)
341 /* We no longer try to identify particular sections for the .dynsym
342 section. When we do, we wind up crashing if there are other random
343 sections with relocations. */
345 /* Names of sections which appear in the .dynsym section in an Irix 5
348 static const char * const mips_elf_dynsym_sec_names
[] =
361 #define SIZEOF_MIPS_DYNSYM_SECNAMES \
362 (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0])
364 /* The number of entries in mips_elf_dynsym_sec_names which go in the
367 #define MIPS_TEXT_DYNSYM_SECNO (3)
371 /* The names of the runtime procedure table symbols used on Irix 5. */
373 static const char * const mips_elf_dynsym_rtproc_names
[] =
376 "_procedure_string_table",
377 "_procedure_table_size",
381 /* These structures are used to generate the .compact_rel section on
386 unsigned long id1
; /* Always one? */
387 unsigned long num
; /* Number of compact relocation entries. */
388 unsigned long id2
; /* Always two? */
389 unsigned long offset
; /* The file offset of the first relocation. */
390 unsigned long reserved0
; /* Zero? */
391 unsigned long reserved1
; /* Zero? */
400 bfd_byte reserved0
[4];
401 bfd_byte reserved1
[4];
402 } Elf32_External_compact_rel
;
406 unsigned int ctype
: 1; /* 1: long 0: short format. See below. */
407 unsigned int rtype
: 4; /* Relocation types. See below. */
408 unsigned int dist2to
: 8;
409 unsigned int relvaddr
: 19; /* (VADDR - vaddr of the previous entry)/ 4 */
410 unsigned long konst
; /* KONST field. See below. */
411 unsigned long vaddr
; /* VADDR to be relocated. */
416 unsigned int ctype
: 1; /* 1: long 0: short format. See below. */
417 unsigned int rtype
: 4; /* Relocation types. See below. */
418 unsigned int dist2to
: 8;
419 unsigned int relvaddr
: 19; /* (VADDR - vaddr of the previous entry)/ 4 */
420 unsigned long konst
; /* KONST field. See below. */
428 } Elf32_External_crinfo
;
434 } Elf32_External_crinfo2
;
436 /* These are the constants used to swap the bitfields in a crinfo. */
438 #define CRINFO_CTYPE (0x1)
439 #define CRINFO_CTYPE_SH (31)
440 #define CRINFO_RTYPE (0xf)
441 #define CRINFO_RTYPE_SH (27)
442 #define CRINFO_DIST2TO (0xff)
443 #define CRINFO_DIST2TO_SH (19)
444 #define CRINFO_RELVADDR (0x7ffff)
445 #define CRINFO_RELVADDR_SH (0)
447 /* A compact relocation info has long (3 words) or short (2 words)
448 formats. A short format doesn't have VADDR field and relvaddr
449 fields contains ((VADDR - vaddr of the previous entry) >> 2). */
450 #define CRF_MIPS_LONG 1
451 #define CRF_MIPS_SHORT 0
453 /* There are 4 types of compact relocation at least. The value KONST
454 has different meaning for each type:
457 CT_MIPS_REL32 Address in data
458 CT_MIPS_WORD Address in word (XXX)
459 CT_MIPS_GPHI_LO GP - vaddr
460 CT_MIPS_JMPAD Address to jump
463 #define CRT_MIPS_REL32 0xa
464 #define CRT_MIPS_WORD 0xb
465 #define CRT_MIPS_GPHI_LO 0xc
466 #define CRT_MIPS_JMPAD 0xd
468 #define mips_elf_set_cr_format(x,format) ((x).ctype = (format))
469 #define mips_elf_set_cr_type(x,type) ((x).rtype = (type))
470 #define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v))
471 #define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2)
473 static void bfd_elf32_swap_compact_rel_out
474 PARAMS ((bfd
*, const Elf32_compact_rel
*, Elf32_External_compact_rel
*));
475 static void bfd_elf32_swap_crinfo_out
476 PARAMS ((bfd
*, const Elf32_crinfo
*, Elf32_External_crinfo
*));
478 #define USE_REL 1 /* MIPS uses REL relocations instead of RELA */
480 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
481 from smaller values. Start with zero, widen, *then* decrement. */
482 #define MINUS_ONE (((bfd_vma)0) - 1)
484 static reloc_howto_type elf_mips_howto_table
[] =
487 HOWTO (R_MIPS_NONE
, /* type */
489 0, /* size (0 = byte, 1 = short, 2 = long) */
491 false, /* pc_relative */
493 complain_overflow_dont
, /* complain_on_overflow */
494 bfd_elf_generic_reloc
, /* special_function */
495 "R_MIPS_NONE", /* name */
496 false, /* partial_inplace */
499 false), /* pcrel_offset */
501 /* 16 bit relocation. */
502 HOWTO (R_MIPS_16
, /* type */
504 1, /* size (0 = byte, 1 = short, 2 = long) */
506 false, /* pc_relative */
508 complain_overflow_bitfield
, /* complain_on_overflow */
509 bfd_elf_generic_reloc
, /* special_function */
510 "R_MIPS_16", /* name */
511 true, /* partial_inplace */
512 0xffff, /* src_mask */
513 0xffff, /* dst_mask */
514 false), /* pcrel_offset */
516 /* 32 bit relocation. */
517 HOWTO (R_MIPS_32
, /* type */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
521 false, /* pc_relative */
523 complain_overflow_bitfield
, /* complain_on_overflow */
524 bfd_elf_generic_reloc
, /* special_function */
525 "R_MIPS_32", /* name */
526 true, /* partial_inplace */
527 0xffffffff, /* src_mask */
528 0xffffffff, /* dst_mask */
529 false), /* pcrel_offset */
531 /* 32 bit symbol relative relocation. */
532 HOWTO (R_MIPS_REL32
, /* type */
534 2, /* size (0 = byte, 1 = short, 2 = long) */
536 false, /* pc_relative */
538 complain_overflow_bitfield
, /* complain_on_overflow */
539 bfd_elf_generic_reloc
, /* special_function */
540 "R_MIPS_REL32", /* name */
541 true, /* partial_inplace */
542 0xffffffff, /* src_mask */
543 0xffffffff, /* dst_mask */
544 false), /* pcrel_offset */
546 /* 26 bit jump address. */
547 HOWTO (R_MIPS_26
, /* type */
549 2, /* size (0 = byte, 1 = short, 2 = long) */
551 false, /* pc_relative */
553 complain_overflow_dont
, /* complain_on_overflow */
554 /* This needs complex overflow
555 detection, because the upper four
556 bits must match the PC + 4. */
557 bfd_elf_generic_reloc
, /* special_function */
558 "R_MIPS_26", /* name */
559 true, /* partial_inplace */
560 0x3ffffff, /* src_mask */
561 0x3ffffff, /* dst_mask */
562 false), /* pcrel_offset */
564 /* High 16 bits of symbol value. */
565 HOWTO (R_MIPS_HI16
, /* type */
567 2, /* size (0 = byte, 1 = short, 2 = long) */
569 false, /* pc_relative */
571 complain_overflow_dont
, /* complain_on_overflow */
572 _bfd_mips_elf_hi16_reloc
, /* special_function */
573 "R_MIPS_HI16", /* name */
574 true, /* partial_inplace */
575 0xffff, /* src_mask */
576 0xffff, /* dst_mask */
577 false), /* pcrel_offset */
579 /* Low 16 bits of symbol value. */
580 HOWTO (R_MIPS_LO16
, /* type */
582 2, /* size (0 = byte, 1 = short, 2 = long) */
584 false, /* pc_relative */
586 complain_overflow_dont
, /* complain_on_overflow */
587 _bfd_mips_elf_lo16_reloc
, /* special_function */
588 "R_MIPS_LO16", /* name */
589 true, /* partial_inplace */
590 0xffff, /* src_mask */
591 0xffff, /* dst_mask */
592 false), /* pcrel_offset */
594 /* GP relative reference. */
595 HOWTO (R_MIPS_GPREL16
, /* type */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
599 false, /* pc_relative */
601 complain_overflow_signed
, /* complain_on_overflow */
602 _bfd_mips_elf_gprel16_reloc
, /* special_function */
603 "R_MIPS_GPREL16", /* name */
604 true, /* partial_inplace */
605 0xffff, /* src_mask */
606 0xffff, /* dst_mask */
607 false), /* pcrel_offset */
609 /* Reference to literal section. */
610 HOWTO (R_MIPS_LITERAL
, /* type */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
614 false, /* pc_relative */
616 complain_overflow_signed
, /* complain_on_overflow */
617 _bfd_mips_elf_gprel16_reloc
, /* special_function */
618 "R_MIPS_LITERAL", /* name */
619 true, /* partial_inplace */
620 0xffff, /* src_mask */
621 0xffff, /* dst_mask */
622 false), /* pcrel_offset */
624 /* Reference to global offset table. */
625 HOWTO (R_MIPS_GOT16
, /* type */
627 2, /* size (0 = byte, 1 = short, 2 = long) */
629 false, /* pc_relative */
631 complain_overflow_signed
, /* complain_on_overflow */
632 _bfd_mips_elf_got16_reloc
, /* special_function */
633 "R_MIPS_GOT16", /* name */
634 false, /* partial_inplace */
635 0xffff, /* src_mask */
636 0xffff, /* dst_mask */
637 false), /* pcrel_offset */
639 /* 16 bit PC relative reference. */
640 HOWTO (R_MIPS_PC16
, /* type */
642 2, /* size (0 = byte, 1 = short, 2 = long) */
644 true, /* pc_relative */
646 complain_overflow_signed
, /* complain_on_overflow */
647 bfd_elf_generic_reloc
, /* special_function */
648 "R_MIPS_PC16", /* name */
649 true, /* partial_inplace */
650 0xffff, /* src_mask */
651 0xffff, /* dst_mask */
652 true), /* pcrel_offset */
654 /* 16 bit call through global offset table. */
655 HOWTO (R_MIPS_CALL16
, /* type */
657 2, /* size (0 = byte, 1 = short, 2 = long) */
659 false, /* pc_relative */
661 complain_overflow_signed
, /* complain_on_overflow */
662 bfd_elf_generic_reloc
, /* special_function */
663 "R_MIPS_CALL16", /* name */
664 false, /* partial_inplace */
665 0xffff, /* src_mask */
666 0xffff, /* dst_mask */
667 false), /* pcrel_offset */
669 /* 32 bit GP relative reference. */
670 HOWTO (R_MIPS_GPREL32
, /* type */
672 2, /* size (0 = byte, 1 = short, 2 = long) */
674 false, /* pc_relative */
676 complain_overflow_bitfield
, /* complain_on_overflow */
677 _bfd_mips_elf_gprel32_reloc
, /* special_function */
678 "R_MIPS_GPREL32", /* name */
679 true, /* partial_inplace */
680 0xffffffff, /* src_mask */
681 0xffffffff, /* dst_mask */
682 false), /* pcrel_offset */
684 /* The remaining relocs are defined on Irix 5, although they are
685 not defined by the ABI. */
690 /* A 5 bit shift field. */
691 HOWTO (R_MIPS_SHIFT5
, /* type */
693 2, /* size (0 = byte, 1 = short, 2 = long) */
695 false, /* pc_relative */
697 complain_overflow_bitfield
, /* complain_on_overflow */
698 bfd_elf_generic_reloc
, /* special_function */
699 "R_MIPS_SHIFT5", /* name */
700 true, /* partial_inplace */
701 0x000007c0, /* src_mask */
702 0x000007c0, /* dst_mask */
703 false), /* pcrel_offset */
705 /* A 6 bit shift field. */
706 /* FIXME: This is not handled correctly; a special function is
707 needed to put the most significant bit in the right place. */
708 HOWTO (R_MIPS_SHIFT6
, /* type */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
712 false, /* pc_relative */
714 complain_overflow_bitfield
, /* complain_on_overflow */
715 bfd_elf_generic_reloc
, /* special_function */
716 "R_MIPS_SHIFT6", /* name */
717 true, /* partial_inplace */
718 0x000007c4, /* src_mask */
719 0x000007c4, /* dst_mask */
720 false), /* pcrel_offset */
722 /* A 64 bit relocation. */
723 HOWTO (R_MIPS_64
, /* type */
725 4, /* size (0 = byte, 1 = short, 2 = long) */
727 false, /* pc_relative */
729 complain_overflow_bitfield
, /* complain_on_overflow */
730 mips32_64bit_reloc
, /* special_function */
731 "R_MIPS_64", /* name */
732 true, /* partial_inplace */
733 MINUS_ONE
, /* src_mask */
734 MINUS_ONE
, /* dst_mask */
735 false), /* pcrel_offset */
737 /* Displacement in the global offset table. */
738 HOWTO (R_MIPS_GOT_DISP
, /* type */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
742 false, /* pc_relative */
744 complain_overflow_bitfield
, /* complain_on_overflow */
745 bfd_elf_generic_reloc
, /* special_function */
746 "R_MIPS_GOT_DISP", /* name */
747 true, /* partial_inplace */
748 0x0000ffff, /* src_mask */
749 0x0000ffff, /* dst_mask */
750 false), /* pcrel_offset */
752 /* Displacement to page pointer in the global offset table. */
753 HOWTO (R_MIPS_GOT_PAGE
, /* type */
755 2, /* size (0 = byte, 1 = short, 2 = long) */
757 false, /* pc_relative */
759 complain_overflow_bitfield
, /* complain_on_overflow */
760 bfd_elf_generic_reloc
, /* special_function */
761 "R_MIPS_GOT_PAGE", /* name */
762 true, /* partial_inplace */
763 0x0000ffff, /* src_mask */
764 0x0000ffff, /* dst_mask */
765 false), /* pcrel_offset */
767 /* Offset from page pointer in the global offset table. */
768 HOWTO (R_MIPS_GOT_OFST
, /* type */
770 2, /* size (0 = byte, 1 = short, 2 = long) */
772 false, /* pc_relative */
774 complain_overflow_bitfield
, /* complain_on_overflow */
775 bfd_elf_generic_reloc
, /* special_function */
776 "R_MIPS_GOT_OFST", /* name */
777 true, /* partial_inplace */
778 0x0000ffff, /* src_mask */
779 0x0000ffff, /* dst_mask */
780 false), /* pcrel_offset */
782 /* High 16 bits of displacement in global offset table. */
783 HOWTO (R_MIPS_GOT_HI16
, /* type */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
787 false, /* pc_relative */
789 complain_overflow_dont
, /* complain_on_overflow */
790 bfd_elf_generic_reloc
, /* special_function */
791 "R_MIPS_GOT_HI16", /* name */
792 true, /* partial_inplace */
793 0x0000ffff, /* src_mask */
794 0x0000ffff, /* dst_mask */
795 false), /* pcrel_offset */
797 /* Low 16 bits of displacement in global offset table. */
798 HOWTO (R_MIPS_GOT_LO16
, /* type */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
802 false, /* pc_relative */
804 complain_overflow_dont
, /* complain_on_overflow */
805 bfd_elf_generic_reloc
, /* special_function */
806 "R_MIPS_GOT_LO16", /* name */
807 true, /* partial_inplace */
808 0x0000ffff, /* src_mask */
809 0x0000ffff, /* dst_mask */
810 false), /* pcrel_offset */
812 /* 64 bit subtraction. Used in the N32 ABI. */
813 HOWTO (R_MIPS_SUB
, /* type */
815 4, /* size (0 = byte, 1 = short, 2 = long) */
817 false, /* pc_relative */
819 complain_overflow_bitfield
, /* complain_on_overflow */
820 bfd_elf_generic_reloc
, /* special_function */
821 "R_MIPS_SUB", /* name */
822 true, /* partial_inplace */
823 MINUS_ONE
, /* src_mask */
824 MINUS_ONE
, /* dst_mask */
825 false), /* pcrel_offset */
827 /* Used to cause the linker to insert and delete instructions? */
828 EMPTY_HOWTO (R_MIPS_INSERT_A
),
829 EMPTY_HOWTO (R_MIPS_INSERT_B
),
830 EMPTY_HOWTO (R_MIPS_DELETE
),
832 /* Get the higher value of a 64 bit addend. */
833 HOWTO (R_MIPS_HIGHER
, /* type */
835 2, /* size (0 = byte, 1 = short, 2 = long) */
837 false, /* pc_relative */
839 complain_overflow_dont
, /* complain_on_overflow */
840 bfd_elf_generic_reloc
, /* special_function */
841 "R_MIPS_HIGHER", /* name */
842 true, /* partial_inplace */
844 0xffff, /* dst_mask */
845 false), /* pcrel_offset */
847 /* Get the highest value of a 64 bit addend. */
848 HOWTO (R_MIPS_HIGHEST
, /* type */
850 2, /* size (0 = byte, 1 = short, 2 = long) */
852 false, /* pc_relative */
854 complain_overflow_dont
, /* complain_on_overflow */
855 bfd_elf_generic_reloc
, /* special_function */
856 "R_MIPS_HIGHEST", /* name */
857 true, /* partial_inplace */
859 0xffff, /* dst_mask */
860 false), /* pcrel_offset */
862 /* High 16 bits of displacement in global offset table. */
863 HOWTO (R_MIPS_CALL_HI16
, /* type */
865 2, /* size (0 = byte, 1 = short, 2 = long) */
867 false, /* pc_relative */
869 complain_overflow_dont
, /* complain_on_overflow */
870 bfd_elf_generic_reloc
, /* special_function */
871 "R_MIPS_CALL_HI16", /* name */
872 true, /* partial_inplace */
873 0x0000ffff, /* src_mask */
874 0x0000ffff, /* dst_mask */
875 false), /* pcrel_offset */
877 /* Low 16 bits of displacement in global offset table. */
878 HOWTO (R_MIPS_CALL_LO16
, /* type */
880 2, /* size (0 = byte, 1 = short, 2 = long) */
882 false, /* pc_relative */
884 complain_overflow_dont
, /* complain_on_overflow */
885 bfd_elf_generic_reloc
, /* special_function */
886 "R_MIPS_CALL_LO16", /* name */
887 true, /* partial_inplace */
888 0x0000ffff, /* src_mask */
889 0x0000ffff, /* dst_mask */
890 false), /* pcrel_offset */
892 /* Section displacement. */
893 HOWTO (R_MIPS_SCN_DISP
, /* type */
895 2, /* size (0 = byte, 1 = short, 2 = long) */
897 false, /* pc_relative */
899 complain_overflow_dont
, /* complain_on_overflow */
900 bfd_elf_generic_reloc
, /* special_function */
901 "R_MIPS_SCN_DISP", /* name */
902 false, /* partial_inplace */
903 0xffffffff, /* src_mask */
904 0xffffffff, /* dst_mask */
905 false), /* pcrel_offset */
907 EMPTY_HOWTO (R_MIPS_REL16
),
908 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE
),
909 EMPTY_HOWTO (R_MIPS_PJUMP
),
910 EMPTY_HOWTO (R_MIPS_RELGOT
),
912 /* Protected jump conversion. This is an optimization hint. No
913 relocation is required for correctness. */
914 HOWTO (R_MIPS_JALR
, /* type */
916 0, /* size (0 = byte, 1 = short, 2 = long) */
918 false, /* pc_relative */
920 complain_overflow_dont
, /* complain_on_overflow */
921 bfd_elf_generic_reloc
, /* special_function */
922 "R_MIPS_JALR", /* name */
923 false, /* partial_inplace */
924 0x00000000, /* src_mask */
925 0x00000000, /* dst_mask */
926 false), /* pcrel_offset */
929 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
930 is a hack to make the linker think that we need 64 bit values. */
931 static reloc_howto_type elf_mips_ctor64_howto
=
932 HOWTO (R_MIPS_64
, /* type */
934 4, /* size (0 = byte, 1 = short, 2 = long) */
936 false, /* pc_relative */
938 complain_overflow_signed
, /* complain_on_overflow */
939 mips32_64bit_reloc
, /* special_function */
940 "R_MIPS_64", /* name */
941 true, /* partial_inplace */
942 0xffffffff, /* src_mask */
943 0xffffffff, /* dst_mask */
944 false); /* pcrel_offset */
946 /* The reloc used for the mips16 jump instruction. */
947 static reloc_howto_type elf_mips16_jump_howto
=
948 HOWTO (R_MIPS16_26
, /* type */
950 2, /* size (0 = byte, 1 = short, 2 = long) */
952 false, /* pc_relative */
954 complain_overflow_dont
, /* complain_on_overflow */
955 /* This needs complex overflow
956 detection, because the upper four
957 bits must match the PC. */
958 mips16_jump_reloc
, /* special_function */
959 "R_MIPS16_26", /* name */
960 true, /* partial_inplace */
961 0x3ffffff, /* src_mask */
962 0x3ffffff, /* dst_mask */
963 false); /* pcrel_offset */
965 /* The reloc used for the mips16 gprel instruction. */
966 static reloc_howto_type elf_mips16_gprel_howto
=
967 HOWTO (R_MIPS16_GPREL
, /* type */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
971 false, /* pc_relative */
973 complain_overflow_signed
, /* complain_on_overflow */
974 mips16_gprel_reloc
, /* special_function */
975 "R_MIPS16_GPREL", /* name */
976 true, /* partial_inplace */
977 0x07ff001f, /* src_mask */
978 0x07ff001f, /* dst_mask */
979 false); /* pcrel_offset */
981 /* GNU extensions for embedded-pic. */
982 /* High 16 bits of symbol value, pc-relative. */
983 static reloc_howto_type elf_mips_gnu_rel_hi16
=
984 HOWTO (R_MIPS_GNU_REL_HI16
, /* type */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
988 true, /* pc_relative */
990 complain_overflow_dont
, /* complain_on_overflow */
991 _bfd_mips_elf_hi16_reloc
, /* special_function */
992 "R_MIPS_GNU_REL_HI16", /* name */
993 true, /* partial_inplace */
994 0xffff, /* src_mask */
995 0xffff, /* dst_mask */
996 true); /* pcrel_offset */
998 /* Low 16 bits of symbol value, pc-relative. */
999 static reloc_howto_type elf_mips_gnu_rel_lo16
=
1000 HOWTO (R_MIPS_GNU_REL_LO16
, /* type */
1002 2, /* size (0 = byte, 1 = short, 2 = long) */
1004 true, /* pc_relative */
1006 complain_overflow_dont
, /* complain_on_overflow */
1007 _bfd_mips_elf_lo16_reloc
, /* special_function */
1008 "R_MIPS_GNU_REL_LO16", /* name */
1009 true, /* partial_inplace */
1010 0xffff, /* src_mask */
1011 0xffff, /* dst_mask */
1012 true); /* pcrel_offset */
1014 /* 16 bit offset for pc-relative branches. */
1015 static reloc_howto_type elf_mips_gnu_rel16_s2
=
1016 HOWTO (R_MIPS_GNU_REL16_S2
, /* type */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 true, /* pc_relative */
1022 complain_overflow_signed
, /* complain_on_overflow */
1023 bfd_elf_generic_reloc
, /* special_function */
1024 "R_MIPS_GNU_REL16_S2", /* name */
1025 true, /* partial_inplace */
1026 0xffff, /* src_mask */
1027 0xffff, /* dst_mask */
1028 true); /* pcrel_offset */
1030 /* 64 bit pc-relative. */
1031 static reloc_howto_type elf_mips_gnu_pcrel64
=
1032 HOWTO (R_MIPS_PC64
, /* type */
1034 4, /* size (0 = byte, 1 = short, 2 = long) */
1036 true, /* pc_relative */
1038 complain_overflow_signed
, /* complain_on_overflow */
1039 bfd_elf_generic_reloc
, /* special_function */
1040 "R_MIPS_PC64", /* name */
1041 true, /* partial_inplace */
1042 MINUS_ONE
, /* src_mask */
1043 MINUS_ONE
, /* dst_mask */
1044 true); /* pcrel_offset */
1046 /* 32 bit pc-relative. */
1047 static reloc_howto_type elf_mips_gnu_pcrel32
=
1048 HOWTO (R_MIPS_PC32
, /* type */
1050 2, /* size (0 = byte, 1 = short, 2 = long) */
1052 true, /* pc_relative */
1054 complain_overflow_signed
, /* complain_on_overflow */
1055 bfd_elf_generic_reloc
, /* special_function */
1056 "R_MIPS_PC32", /* name */
1057 true, /* partial_inplace */
1058 0xffffffff, /* src_mask */
1059 0xffffffff, /* dst_mask */
1060 true); /* pcrel_offset */
1062 /* GNU extension to record C++ vtable hierarchy */
1063 static reloc_howto_type elf_mips_gnu_vtinherit_howto
=
1064 HOWTO (R_MIPS_GNU_VTINHERIT
, /* type */
1066 2, /* size (0 = byte, 1 = short, 2 = long) */
1068 false, /* pc_relative */
1070 complain_overflow_dont
, /* complain_on_overflow */
1071 NULL
, /* special_function */
1072 "R_MIPS_GNU_VTINHERIT", /* name */
1073 false, /* partial_inplace */
1076 false); /* pcrel_offset */
1078 /* GNU extension to record C++ vtable member usage */
1079 static reloc_howto_type elf_mips_gnu_vtentry_howto
=
1080 HOWTO (R_MIPS_GNU_VTENTRY
, /* type */
1082 2, /* size (0 = byte, 1 = short, 2 = long) */
1084 false, /* pc_relative */
1086 complain_overflow_dont
, /* complain_on_overflow */
1087 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
1088 "R_MIPS_GNU_VTENTRY", /* name */
1089 false, /* partial_inplace */
1092 false); /* pcrel_offset */
1094 /* Do a R_MIPS_HI16 relocation. This has to be done in combination
1095 with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to
1096 the HI16. Here we just save the information we need; we do the
1097 actual relocation when we see the LO16. MIPS ELF requires that the
1098 LO16 immediately follow the HI16. As a GNU extension, we permit an
1099 arbitrary number of HI16 relocs to be associated with a single LO16
1100 reloc. This extension permits gcc to output the HI and LO relocs
1105 struct mips_hi16
*next
;
1110 /* FIXME: This should not be a static variable. */
1112 static struct mips_hi16
*mips_hi16_list
;
1114 bfd_reloc_status_type
1115 _bfd_mips_elf_hi16_reloc (abfd
,
1122 bfd
*abfd ATTRIBUTE_UNUSED
;
1123 arelent
*reloc_entry
;
1126 asection
*input_section
;
1128 char **error_message
;
1130 bfd_reloc_status_type ret
;
1132 struct mips_hi16
*n
;
1134 /* If we're relocating, and this an external symbol, we don't want
1135 to change anything. */
1136 if (output_bfd
!= (bfd
*) NULL
1137 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1138 && reloc_entry
->addend
== 0)
1140 reloc_entry
->address
+= input_section
->output_offset
;
1141 return bfd_reloc_ok
;
1146 if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1148 boolean relocateable
;
1151 if (ret
== bfd_reloc_undefined
)
1154 if (output_bfd
!= NULL
)
1155 relocateable
= true;
1158 relocateable
= false;
1159 output_bfd
= symbol
->section
->output_section
->owner
;
1162 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
,
1163 error_message
, &gp
);
1164 if (ret
!= bfd_reloc_ok
)
1167 relocation
= gp
- reloc_entry
->address
;
1171 if (bfd_is_und_section (symbol
->section
)
1172 && output_bfd
== (bfd
*) NULL
)
1173 ret
= bfd_reloc_undefined
;
1175 if (bfd_is_com_section (symbol
->section
))
1178 relocation
= symbol
->value
;
1181 relocation
+= symbol
->section
->output_section
->vma
;
1182 relocation
+= symbol
->section
->output_offset
;
1183 relocation
+= reloc_entry
->addend
;
1185 if (reloc_entry
->address
> input_section
->_cooked_size
)
1186 return bfd_reloc_outofrange
;
1188 /* Save the information, and let LO16 do the actual relocation. */
1189 n
= (struct mips_hi16
*) bfd_malloc (sizeof *n
);
1191 return bfd_reloc_outofrange
;
1192 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
1193 n
->addend
= relocation
;
1194 n
->next
= mips_hi16_list
;
1197 if (output_bfd
!= (bfd
*) NULL
)
1198 reloc_entry
->address
+= input_section
->output_offset
;
1203 /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit
1204 inplace relocation; this function exists in order to do the
1205 R_MIPS_HI16 relocation described above. */
1207 bfd_reloc_status_type
1208 _bfd_mips_elf_lo16_reloc (abfd
,
1216 arelent
*reloc_entry
;
1219 asection
*input_section
;
1221 char **error_message
;
1223 arelent gp_disp_relent
;
1225 if (mips_hi16_list
!= NULL
)
1227 struct mips_hi16
*l
;
1234 unsigned long vallo
;
1235 struct mips_hi16
*next
;
1237 /* Do the HI16 relocation. Note that we actually don't need
1238 to know anything about the LO16 itself, except where to
1239 find the low 16 bits of the addend needed by the LO16. */
1240 insn
= bfd_get_32 (abfd
, l
->addr
);
1241 vallo
= (bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
)
1243 val
= ((insn
& 0xffff) << 16) + vallo
;
1246 /* The low order 16 bits are always treated as a signed
1247 value. Therefore, a negative value in the low order bits
1248 requires an adjustment in the high order bits. We need
1249 to make this adjustment in two ways: once for the bits we
1250 took from the data, and once for the bits we are putting
1251 back in to the data. */
1252 if ((vallo
& 0x8000) != 0)
1254 if ((val
& 0x8000) != 0)
1257 insn
= (insn
& ~0xffff) | ((val
>> 16) & 0xffff);
1258 bfd_put_32 (abfd
, insn
, l
->addr
);
1260 if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1262 gp_disp_relent
= *reloc_entry
;
1263 reloc_entry
= &gp_disp_relent
;
1264 reloc_entry
->addend
= l
->addend
;
1272 mips_hi16_list
= NULL
;
1274 else if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1276 bfd_reloc_status_type ret
;
1277 bfd_vma gp
, relocation
;
1279 /* FIXME: Does this case ever occur? */
1281 ret
= mips_elf_final_gp (output_bfd
, symbol
, true, error_message
, &gp
);
1282 if (ret
!= bfd_reloc_ok
)
1285 relocation
= gp
- reloc_entry
->address
;
1286 relocation
+= symbol
->section
->output_section
->vma
;
1287 relocation
+= symbol
->section
->output_offset
;
1288 relocation
+= reloc_entry
->addend
;
1290 if (reloc_entry
->address
> input_section
->_cooked_size
)
1291 return bfd_reloc_outofrange
;
1293 gp_disp_relent
= *reloc_entry
;
1294 reloc_entry
= &gp_disp_relent
;
1295 reloc_entry
->addend
= relocation
- 4;
1298 /* Now do the LO16 reloc in the usual way. */
1299 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
1300 input_section
, output_bfd
, error_message
);
1303 /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset
1304 table used for PIC code. If the symbol is an external symbol, the
1305 instruction is modified to contain the offset of the appropriate
1306 entry in the global offset table. If the symbol is a section
1307 symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit
1308 addends are combined to form the real addend against the section
1309 symbol; the GOT16 is modified to contain the offset of an entry in
1310 the global offset table, and the LO16 is modified to offset it
1311 appropriately. Thus an offset larger than 16 bits requires a
1312 modified value in the global offset table.
1314 This implementation suffices for the assembler, but the linker does
1315 not yet know how to create global offset tables. */
1317 bfd_reloc_status_type
1318 _bfd_mips_elf_got16_reloc (abfd
,
1326 arelent
*reloc_entry
;
1329 asection
*input_section
;
1331 char **error_message
;
1333 /* If we're relocating, and this an external symbol, we don't want
1334 to change anything. */
1335 if (output_bfd
!= (bfd
*) NULL
1336 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1337 && reloc_entry
->addend
== 0)
1339 reloc_entry
->address
+= input_section
->output_offset
;
1340 return bfd_reloc_ok
;
1343 /* If we're relocating, and this is a local symbol, we can handle it
1345 if (output_bfd
!= (bfd
*) NULL
1346 && (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1347 return _bfd_mips_elf_hi16_reloc (abfd
, reloc_entry
, symbol
, data
,
1348 input_section
, output_bfd
, error_message
);
1353 /* Set the GP value for OUTPUT_BFD. Returns false if this is a
1354 dangerous relocation. */
1357 mips_elf_assign_gp (output_bfd
, pgp
)
1365 /* If we've already figured out what GP will be, just return it. */
1366 *pgp
= _bfd_get_gp_value (output_bfd
);
1370 count
= bfd_get_symcount (output_bfd
);
1371 sym
= bfd_get_outsymbols (output_bfd
);
1373 /* The linker script will have created a symbol named `_gp' with the
1374 appropriate value. */
1375 if (sym
== (asymbol
**) NULL
)
1379 for (i
= 0; i
< count
; i
++, sym
++)
1381 register CONST
char *name
;
1383 name
= bfd_asymbol_name (*sym
);
1384 if (*name
== '_' && strcmp (name
, "_gp") == 0)
1386 *pgp
= bfd_asymbol_value (*sym
);
1387 _bfd_set_gp_value (output_bfd
, *pgp
);
1395 /* Only get the error once. */
1397 _bfd_set_gp_value (output_bfd
, *pgp
);
1404 /* We have to figure out the gp value, so that we can adjust the
1405 symbol value correctly. We look up the symbol _gp in the output
1406 BFD. If we can't find it, we're stuck. We cache it in the ELF
1407 target data. We don't need to adjust the symbol value for an
1408 external symbol if we are producing relocateable output. */
1410 static bfd_reloc_status_type
1411 mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
, pgp
)
1414 boolean relocateable
;
1415 char **error_message
;
1418 if (bfd_is_und_section (symbol
->section
)
1422 return bfd_reloc_undefined
;
1425 *pgp
= _bfd_get_gp_value (output_bfd
);
1428 || (symbol
->flags
& BSF_SECTION_SYM
) != 0))
1432 /* Make up a value. */
1433 *pgp
= symbol
->section
->output_section
->vma
+ 0x4000;
1434 _bfd_set_gp_value (output_bfd
, *pgp
);
1436 else if (!mips_elf_assign_gp (output_bfd
, pgp
))
1439 (char *) _("GP relative relocation when _gp not defined");
1440 return bfd_reloc_dangerous
;
1444 return bfd_reloc_ok
;
1447 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1448 become the offset from the gp register. This function also handles
1449 R_MIPS_LITERAL relocations, although those can be handled more
1450 cleverly because the entries in the .lit8 and .lit4 sections can be
1453 static bfd_reloc_status_type gprel16_with_gp
PARAMS ((bfd
*, asymbol
*,
1454 arelent
*, asection
*,
1455 boolean
, PTR
, bfd_vma
));
1457 bfd_reloc_status_type
1458 _bfd_mips_elf_gprel16_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1459 output_bfd
, error_message
)
1461 arelent
*reloc_entry
;
1464 asection
*input_section
;
1466 char **error_message
;
1468 boolean relocateable
;
1469 bfd_reloc_status_type ret
;
1472 /* If we're relocating, and this is an external symbol with no
1473 addend, we don't want to change anything. We will only have an
1474 addend if this is a newly created reloc, not read from an ELF
1476 if (output_bfd
!= (bfd
*) NULL
1477 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1478 && reloc_entry
->addend
== 0)
1480 reloc_entry
->address
+= input_section
->output_offset
;
1481 return bfd_reloc_ok
;
1484 if (output_bfd
!= (bfd
*) NULL
)
1485 relocateable
= true;
1488 relocateable
= false;
1489 output_bfd
= symbol
->section
->output_section
->owner
;
1492 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
,
1494 if (ret
!= bfd_reloc_ok
)
1497 return gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1498 relocateable
, data
, gp
);
1501 static bfd_reloc_status_type
1502 gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
, relocateable
, data
,
1506 arelent
*reloc_entry
;
1507 asection
*input_section
;
1508 boolean relocateable
;
1516 if (bfd_is_com_section (symbol
->section
))
1519 relocation
= symbol
->value
;
1521 relocation
+= symbol
->section
->output_section
->vma
;
1522 relocation
+= symbol
->section
->output_offset
;
1524 if (reloc_entry
->address
> input_section
->_cooked_size
)
1525 return bfd_reloc_outofrange
;
1527 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1529 /* Set val to the offset into the section or symbol. */
1530 if (reloc_entry
->howto
->src_mask
== 0)
1532 /* This case occurs with the 64-bit MIPS ELF ABI. */
1533 val
= reloc_entry
->addend
;
1537 val
= ((insn
& 0xffff) + reloc_entry
->addend
) & 0xffff;
1542 /* Adjust val for the final section location and GP value. If we
1543 are producing relocateable output, we don't want to do this for
1544 an external symbol. */
1546 || (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1547 val
+= relocation
- gp
;
1549 insn
= (insn
& ~0xffff) | (val
& 0xffff);
1550 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
1553 reloc_entry
->address
+= input_section
->output_offset
;
1555 /* Make sure it fit in 16 bits. */
1556 if ((long) val
>= 0x8000 || (long) val
< -0x8000)
1557 return bfd_reloc_overflow
;
1559 return bfd_reloc_ok
;
1562 /* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset
1563 from the gp register? XXX */
1565 static bfd_reloc_status_type gprel32_with_gp
PARAMS ((bfd
*, asymbol
*,
1566 arelent
*, asection
*,
1567 boolean
, PTR
, bfd_vma
));
1569 bfd_reloc_status_type
1570 _bfd_mips_elf_gprel32_reloc (abfd
,
1578 arelent
*reloc_entry
;
1581 asection
*input_section
;
1583 char **error_message
;
1585 boolean relocateable
;
1586 bfd_reloc_status_type ret
;
1589 /* If we're relocating, and this is an external symbol with no
1590 addend, we don't want to change anything. We will only have an
1591 addend if this is a newly created reloc, not read from an ELF
1593 if (output_bfd
!= (bfd
*) NULL
1594 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1595 && reloc_entry
->addend
== 0)
1597 *error_message
= (char *)
1598 _("32bits gp relative relocation occurs for an external symbol");
1599 return bfd_reloc_outofrange
;
1602 if (output_bfd
!= (bfd
*) NULL
)
1604 relocateable
= true;
1605 gp
= _bfd_get_gp_value (output_bfd
);
1609 relocateable
= false;
1610 output_bfd
= symbol
->section
->output_section
->owner
;
1612 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
,
1613 error_message
, &gp
);
1614 if (ret
!= bfd_reloc_ok
)
1618 return gprel32_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1619 relocateable
, data
, gp
);
1622 static bfd_reloc_status_type
1623 gprel32_with_gp (abfd
, symbol
, reloc_entry
, input_section
, relocateable
, data
,
1627 arelent
*reloc_entry
;
1628 asection
*input_section
;
1629 boolean relocateable
;
1636 if (bfd_is_com_section (symbol
->section
))
1639 relocation
= symbol
->value
;
1641 relocation
+= symbol
->section
->output_section
->vma
;
1642 relocation
+= symbol
->section
->output_offset
;
1644 if (reloc_entry
->address
> input_section
->_cooked_size
)
1645 return bfd_reloc_outofrange
;
1647 if (reloc_entry
->howto
->src_mask
== 0)
1649 /* This case arises with the 64-bit MIPS ELF ABI. */
1653 val
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1655 /* Set val to the offset into the section or symbol. */
1656 val
+= reloc_entry
->addend
;
1658 /* Adjust val for the final section location and GP value. If we
1659 are producing relocateable output, we don't want to do this for
1660 an external symbol. */
1662 || (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1663 val
+= relocation
- gp
;
1665 bfd_put_32 (abfd
, val
, (bfd_byte
*) data
+ reloc_entry
->address
);
1668 reloc_entry
->address
+= input_section
->output_offset
;
1670 return bfd_reloc_ok
;
1673 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1674 generated when addresses are 64 bits. The upper 32 bits are a simple
1677 static bfd_reloc_status_type
1678 mips32_64bit_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1679 output_bfd
, error_message
)
1681 arelent
*reloc_entry
;
1684 asection
*input_section
;
1686 char **error_message
;
1688 bfd_reloc_status_type r
;
1693 r
= bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
1694 input_section
, output_bfd
, error_message
);
1695 if (r
!= bfd_reloc_continue
)
1698 /* Do a normal 32 bit relocation on the lower 32 bits. */
1699 reloc32
= *reloc_entry
;
1700 if (bfd_big_endian (abfd
))
1701 reloc32
.address
+= 4;
1702 reloc32
.howto
= &elf_mips_howto_table
[R_MIPS_32
];
1703 r
= bfd_perform_relocation (abfd
, &reloc32
, data
, input_section
,
1704 output_bfd
, error_message
);
1706 /* Sign extend into the upper 32 bits. */
1707 val
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc32
.address
);
1708 if ((val
& 0x80000000) != 0)
1712 addr
= reloc_entry
->address
;
1713 if (bfd_little_endian (abfd
))
1715 bfd_put_32 (abfd
, val
, (bfd_byte
*) data
+ addr
);
1720 /* Handle a mips16 jump. */
1722 static bfd_reloc_status_type
1723 mips16_jump_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1724 output_bfd
, error_message
)
1725 bfd
*abfd ATTRIBUTE_UNUSED
;
1726 arelent
*reloc_entry
;
1728 PTR data ATTRIBUTE_UNUSED
;
1729 asection
*input_section
;
1731 char **error_message ATTRIBUTE_UNUSED
;
1733 if (output_bfd
!= (bfd
*) NULL
1734 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1735 && reloc_entry
->addend
== 0)
1737 reloc_entry
->address
+= input_section
->output_offset
;
1738 return bfd_reloc_ok
;
1743 static boolean warned
;
1746 (*_bfd_error_handler
)
1747 (_("Linking mips16 objects into %s format is not supported"),
1748 bfd_get_target (input_section
->output_section
->owner
));
1752 return bfd_reloc_undefined
;
1755 /* Handle a mips16 GP relative reloc. */
1757 static bfd_reloc_status_type
1758 mips16_gprel_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1759 output_bfd
, error_message
)
1761 arelent
*reloc_entry
;
1764 asection
*input_section
;
1766 char **error_message
;
1768 boolean relocateable
;
1769 bfd_reloc_status_type ret
;
1771 unsigned short extend
, insn
;
1772 unsigned long final
;
1774 /* If we're relocating, and this is an external symbol with no
1775 addend, we don't want to change anything. We will only have an
1776 addend if this is a newly created reloc, not read from an ELF
1778 if (output_bfd
!= NULL
1779 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1780 && reloc_entry
->addend
== 0)
1782 reloc_entry
->address
+= input_section
->output_offset
;
1783 return bfd_reloc_ok
;
1786 if (output_bfd
!= NULL
)
1787 relocateable
= true;
1790 relocateable
= false;
1791 output_bfd
= symbol
->section
->output_section
->owner
;
1794 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
,
1796 if (ret
!= bfd_reloc_ok
)
1799 if (reloc_entry
->address
> input_section
->_cooked_size
)
1800 return bfd_reloc_outofrange
;
1802 /* Pick up the mips16 extend instruction and the real instruction. */
1803 extend
= bfd_get_16 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1804 insn
= bfd_get_16 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
+ 2);
1806 /* Stuff the current addend back as a 32 bit value, do the usual
1807 relocation, and then clean up. */
1809 (((extend
& 0x1f) << 11)
1812 (bfd_byte
*) data
+ reloc_entry
->address
);
1814 ret
= gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1815 relocateable
, data
, gp
);
1817 final
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1820 | ((final
>> 11) & 0x1f)
1822 (bfd_byte
*) data
+ reloc_entry
->address
);
1826 (bfd_byte
*) data
+ reloc_entry
->address
+ 2);
1831 /* Return the ISA for a MIPS e_flags value. */
1834 elf_mips_isa (flags
)
1837 switch (flags
& EF_MIPS_ARCH
)
1849 case E_MIPS_ARCH_32
:
1851 case E_MIPS_ARCH_64
:
1857 /* Return the MACH for a MIPS e_flags value. */
1860 elf_mips_mach (flags
)
1863 switch (flags
& EF_MIPS_MACH
)
1865 case E_MIPS_MACH_3900
:
1866 return bfd_mach_mips3900
;
1868 case E_MIPS_MACH_4010
:
1869 return bfd_mach_mips4010
;
1871 case E_MIPS_MACH_4100
:
1872 return bfd_mach_mips4100
;
1874 case E_MIPS_MACH_4111
:
1875 return bfd_mach_mips4111
;
1877 case E_MIPS_MACH_4650
:
1878 return bfd_mach_mips4650
;
1880 case E_MIPS_MACH_MIPS32_4K
:
1881 return bfd_mach_mips32_4k
;
1883 case E_MIPS_MACH_SB1
:
1884 return bfd_mach_mips_sb1
;
1887 switch (flags
& EF_MIPS_ARCH
)
1891 return bfd_mach_mips3000
;
1895 return bfd_mach_mips6000
;
1899 return bfd_mach_mips4000
;
1903 return bfd_mach_mips8000
;
1907 return bfd_mach_mips5
;
1910 case E_MIPS_ARCH_32
:
1911 return bfd_mach_mips32
;
1914 case E_MIPS_ARCH_64
:
1915 return bfd_mach_mips64
;
1923 /* Return printable name for ABI. */
1925 static INLINE
char *
1926 elf_mips_abi_name (abfd
)
1931 if (ABI_N32_P (abfd
))
1933 else if (ABI_64_P (abfd
))
1936 flags
= elf_elfheader (abfd
)->e_flags
;
1937 switch (flags
& EF_MIPS_ABI
)
1941 case E_MIPS_ABI_O32
:
1943 case E_MIPS_ABI_O64
:
1945 case E_MIPS_ABI_EABI32
:
1947 case E_MIPS_ABI_EABI64
:
1950 return "unknown abi";
1954 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1956 struct elf_reloc_map
{
1957 bfd_reloc_code_real_type bfd_reloc_val
;
1958 enum elf_mips_reloc_type elf_reloc_val
;
1961 static CONST
struct elf_reloc_map mips_reloc_map
[] =
1963 { BFD_RELOC_NONE
, R_MIPS_NONE
, },
1964 { BFD_RELOC_16
, R_MIPS_16
},
1965 { BFD_RELOC_32
, R_MIPS_32
},
1966 { BFD_RELOC_64
, R_MIPS_64
},
1967 { BFD_RELOC_MIPS_JMP
, R_MIPS_26
},
1968 { BFD_RELOC_HI16_S
, R_MIPS_HI16
},
1969 { BFD_RELOC_LO16
, R_MIPS_LO16
},
1970 { BFD_RELOC_MIPS_GPREL
, R_MIPS_GPREL16
},
1971 { BFD_RELOC_MIPS_LITERAL
, R_MIPS_LITERAL
},
1972 { BFD_RELOC_MIPS_GOT16
, R_MIPS_GOT16
},
1973 { BFD_RELOC_16_PCREL
, R_MIPS_PC16
},
1974 { BFD_RELOC_MIPS_CALL16
, R_MIPS_CALL16
},
1975 { BFD_RELOC_MIPS_GPREL32
, R_MIPS_GPREL32
},
1976 { BFD_RELOC_MIPS_GOT_HI16
, R_MIPS_GOT_HI16
},
1977 { BFD_RELOC_MIPS_GOT_LO16
, R_MIPS_GOT_LO16
},
1978 { BFD_RELOC_MIPS_CALL_HI16
, R_MIPS_CALL_HI16
},
1979 { BFD_RELOC_MIPS_CALL_LO16
, R_MIPS_CALL_LO16
},
1980 { BFD_RELOC_MIPS_SUB
, R_MIPS_SUB
},
1981 { BFD_RELOC_MIPS_GOT_PAGE
, R_MIPS_GOT_PAGE
},
1982 { BFD_RELOC_MIPS_GOT_OFST
, R_MIPS_GOT_OFST
},
1983 { BFD_RELOC_MIPS_GOT_DISP
, R_MIPS_GOT_DISP
}
1986 /* Given a BFD reloc type, return a howto structure. */
1988 static reloc_howto_type
*
1989 bfd_elf32_bfd_reloc_type_lookup (abfd
, code
)
1991 bfd_reloc_code_real_type code
;
1995 for (i
= 0; i
< sizeof (mips_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
1997 if (mips_reloc_map
[i
].bfd_reloc_val
== code
)
1998 return &elf_mips_howto_table
[(int) mips_reloc_map
[i
].elf_reloc_val
];
2004 bfd_set_error (bfd_error_bad_value
);
2007 case BFD_RELOC_CTOR
:
2008 /* We need to handle BFD_RELOC_CTOR specially.
2009 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2010 size of addresses on this architecture. */
2011 if (bfd_arch_bits_per_address (abfd
) == 32)
2012 return &elf_mips_howto_table
[(int) R_MIPS_32
];
2014 return &elf_mips_ctor64_howto
;
2016 case BFD_RELOC_MIPS16_JMP
:
2017 return &elf_mips16_jump_howto
;
2018 case BFD_RELOC_MIPS16_GPREL
:
2019 return &elf_mips16_gprel_howto
;
2020 case BFD_RELOC_VTABLE_INHERIT
:
2021 return &elf_mips_gnu_vtinherit_howto
;
2022 case BFD_RELOC_VTABLE_ENTRY
:
2023 return &elf_mips_gnu_vtentry_howto
;
2024 case BFD_RELOC_PCREL_HI16_S
:
2025 return &elf_mips_gnu_rel_hi16
;
2026 case BFD_RELOC_PCREL_LO16
:
2027 return &elf_mips_gnu_rel_lo16
;
2028 case BFD_RELOC_16_PCREL_S2
:
2029 return &elf_mips_gnu_rel16_s2
;
2030 case BFD_RELOC_64_PCREL
:
2031 return &elf_mips_gnu_pcrel64
;
2032 case BFD_RELOC_32_PCREL
:
2033 return &elf_mips_gnu_pcrel32
;
2037 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2039 static reloc_howto_type
*
2040 mips_rtype_to_howto (r_type
)
2041 unsigned int r_type
;
2046 return &elf_mips16_jump_howto
;
2048 case R_MIPS16_GPREL
:
2049 return &elf_mips16_gprel_howto
;
2051 case R_MIPS_GNU_VTINHERIT
:
2052 return &elf_mips_gnu_vtinherit_howto
;
2054 case R_MIPS_GNU_VTENTRY
:
2055 return &elf_mips_gnu_vtentry_howto
;
2057 case R_MIPS_GNU_REL_HI16
:
2058 return &elf_mips_gnu_rel_hi16
;
2060 case R_MIPS_GNU_REL_LO16
:
2061 return &elf_mips_gnu_rel_lo16
;
2063 case R_MIPS_GNU_REL16_S2
:
2064 return &elf_mips_gnu_rel16_s2
;
2067 return &elf_mips_gnu_pcrel64
;
2070 return &elf_mips_gnu_pcrel32
;
2074 BFD_ASSERT (r_type
< (unsigned int) R_MIPS_max
);
2075 return &elf_mips_howto_table
[r_type
];
2080 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2083 mips_info_to_howto_rel (abfd
, cache_ptr
, dst
)
2086 Elf32_Internal_Rel
*dst
;
2088 unsigned int r_type
;
2090 r_type
= ELF32_R_TYPE (dst
->r_info
);
2091 cache_ptr
->howto
= mips_rtype_to_howto (r_type
);
2093 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2094 value for the object file. We get the addend now, rather than
2095 when we do the relocation, because the symbol manipulations done
2096 by the linker may cause us to lose track of the input BFD. */
2097 if (((*cache_ptr
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0
2098 && (r_type
== (unsigned int) R_MIPS_GPREL16
2099 || r_type
== (unsigned int) R_MIPS_LITERAL
))
2100 cache_ptr
->addend
= elf_gp (abfd
);
2103 /* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */
2106 mips_info_to_howto_rela (abfd
, cache_ptr
, dst
)
2109 Elf32_Internal_Rela
*dst
;
2111 /* Since an Elf32_Internal_Rel is an initial prefix of an
2112 Elf32_Internal_Rela, we can just use mips_info_to_howto_rel
2114 mips_info_to_howto_rel (abfd
, cache_ptr
, (Elf32_Internal_Rel
*) dst
);
2116 /* If we ever need to do any extra processing with dst->r_addend
2117 (the field omitted in an Elf32_Internal_Rel) we can do it here. */
2120 /* A .reginfo section holds a single Elf32_RegInfo structure. These
2121 routines swap this structure in and out. They are used outside of
2122 BFD, so they are globally visible. */
2125 bfd_mips_elf32_swap_reginfo_in (abfd
, ex
, in
)
2127 const Elf32_External_RegInfo
*ex
;
2130 in
->ri_gprmask
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gprmask
);
2131 in
->ri_cprmask
[0] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[0]);
2132 in
->ri_cprmask
[1] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[1]);
2133 in
->ri_cprmask
[2] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[2]);
2134 in
->ri_cprmask
[3] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[3]);
2135 in
->ri_gp_value
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gp_value
);
2139 bfd_mips_elf32_swap_reginfo_out (abfd
, in
, ex
)
2141 const Elf32_RegInfo
*in
;
2142 Elf32_External_RegInfo
*ex
;
2144 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gprmask
,
2145 (bfd_byte
*) ex
->ri_gprmask
);
2146 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[0],
2147 (bfd_byte
*) ex
->ri_cprmask
[0]);
2148 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[1],
2149 (bfd_byte
*) ex
->ri_cprmask
[1]);
2150 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[2],
2151 (bfd_byte
*) ex
->ri_cprmask
[2]);
2152 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[3],
2153 (bfd_byte
*) ex
->ri_cprmask
[3]);
2154 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gp_value
,
2155 (bfd_byte
*) ex
->ri_gp_value
);
2158 /* In the 64 bit ABI, the .MIPS.options section holds register
2159 information in an Elf64_Reginfo structure. These routines swap
2160 them in and out. They are globally visible because they are used
2161 outside of BFD. These routines are here so that gas can call them
2162 without worrying about whether the 64 bit ABI has been included. */
2165 bfd_mips_elf64_swap_reginfo_in (abfd
, ex
, in
)
2167 const Elf64_External_RegInfo
*ex
;
2168 Elf64_Internal_RegInfo
*in
;
2170 in
->ri_gprmask
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gprmask
);
2171 in
->ri_pad
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_pad
);
2172 in
->ri_cprmask
[0] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[0]);
2173 in
->ri_cprmask
[1] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[1]);
2174 in
->ri_cprmask
[2] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[2]);
2175 in
->ri_cprmask
[3] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[3]);
2176 in
->ri_gp_value
= bfd_h_get_64 (abfd
, (bfd_byte
*) ex
->ri_gp_value
);
2180 bfd_mips_elf64_swap_reginfo_out (abfd
, in
, ex
)
2182 const Elf64_Internal_RegInfo
*in
;
2183 Elf64_External_RegInfo
*ex
;
2185 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gprmask
,
2186 (bfd_byte
*) ex
->ri_gprmask
);
2187 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_pad
,
2188 (bfd_byte
*) ex
->ri_pad
);
2189 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[0],
2190 (bfd_byte
*) ex
->ri_cprmask
[0]);
2191 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[1],
2192 (bfd_byte
*) ex
->ri_cprmask
[1]);
2193 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[2],
2194 (bfd_byte
*) ex
->ri_cprmask
[2]);
2195 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[3],
2196 (bfd_byte
*) ex
->ri_cprmask
[3]);
2197 bfd_h_put_64 (abfd
, (bfd_vma
) in
->ri_gp_value
,
2198 (bfd_byte
*) ex
->ri_gp_value
);
2201 /* Swap an entry in a .gptab section. Note that these routines rely
2202 on the equivalence of the two elements of the union. */
2205 bfd_mips_elf32_swap_gptab_in (abfd
, ex
, in
)
2207 const Elf32_External_gptab
*ex
;
2210 in
->gt_entry
.gt_g_value
= bfd_h_get_32 (abfd
, ex
->gt_entry
.gt_g_value
);
2211 in
->gt_entry
.gt_bytes
= bfd_h_get_32 (abfd
, ex
->gt_entry
.gt_bytes
);
2215 bfd_mips_elf32_swap_gptab_out (abfd
, in
, ex
)
2217 const Elf32_gptab
*in
;
2218 Elf32_External_gptab
*ex
;
2220 bfd_h_put_32 (abfd
, (bfd_vma
) in
->gt_entry
.gt_g_value
,
2221 ex
->gt_entry
.gt_g_value
);
2222 bfd_h_put_32 (abfd
, (bfd_vma
) in
->gt_entry
.gt_bytes
,
2223 ex
->gt_entry
.gt_bytes
);
2227 bfd_elf32_swap_compact_rel_out (abfd
, in
, ex
)
2229 const Elf32_compact_rel
*in
;
2230 Elf32_External_compact_rel
*ex
;
2232 bfd_h_put_32 (abfd
, (bfd_vma
) in
->id1
, ex
->id1
);
2233 bfd_h_put_32 (abfd
, (bfd_vma
) in
->num
, ex
->num
);
2234 bfd_h_put_32 (abfd
, (bfd_vma
) in
->id2
, ex
->id2
);
2235 bfd_h_put_32 (abfd
, (bfd_vma
) in
->offset
, ex
->offset
);
2236 bfd_h_put_32 (abfd
, (bfd_vma
) in
->reserved0
, ex
->reserved0
);
2237 bfd_h_put_32 (abfd
, (bfd_vma
) in
->reserved1
, ex
->reserved1
);
2241 bfd_elf32_swap_crinfo_out (abfd
, in
, ex
)
2243 const Elf32_crinfo
*in
;
2244 Elf32_External_crinfo
*ex
;
2248 l
= (((in
->ctype
& CRINFO_CTYPE
) << CRINFO_CTYPE_SH
)
2249 | ((in
->rtype
& CRINFO_RTYPE
) << CRINFO_RTYPE_SH
)
2250 | ((in
->dist2to
& CRINFO_DIST2TO
) << CRINFO_DIST2TO_SH
)
2251 | ((in
->relvaddr
& CRINFO_RELVADDR
) << CRINFO_RELVADDR_SH
));
2252 bfd_h_put_32 (abfd
, (bfd_vma
) l
, ex
->info
);
2253 bfd_h_put_32 (abfd
, (bfd_vma
) in
->konst
, ex
->konst
);
2254 bfd_h_put_32 (abfd
, (bfd_vma
) in
->vaddr
, ex
->vaddr
);
2257 /* Swap in an options header. */
2260 bfd_mips_elf_swap_options_in (abfd
, ex
, in
)
2262 const Elf_External_Options
*ex
;
2263 Elf_Internal_Options
*in
;
2265 in
->kind
= bfd_h_get_8 (abfd
, ex
->kind
);
2266 in
->size
= bfd_h_get_8 (abfd
, ex
->size
);
2267 in
->section
= bfd_h_get_16 (abfd
, ex
->section
);
2268 in
->info
= bfd_h_get_32 (abfd
, ex
->info
);
2271 /* Swap out an options header. */
2274 bfd_mips_elf_swap_options_out (abfd
, in
, ex
)
2276 const Elf_Internal_Options
*in
;
2277 Elf_External_Options
*ex
;
2279 bfd_h_put_8 (abfd
, in
->kind
, ex
->kind
);
2280 bfd_h_put_8 (abfd
, in
->size
, ex
->size
);
2281 bfd_h_put_16 (abfd
, in
->section
, ex
->section
);
2282 bfd_h_put_32 (abfd
, in
->info
, ex
->info
);
2285 /* Swap in an MSYM entry. */
2288 bfd_mips_elf_swap_msym_in (abfd
, ex
, in
)
2290 const Elf32_External_Msym
*ex
;
2291 Elf32_Internal_Msym
*in
;
2293 in
->ms_hash_value
= bfd_h_get_32 (abfd
, ex
->ms_hash_value
);
2294 in
->ms_info
= bfd_h_get_32 (abfd
, ex
->ms_info
);
2297 /* Swap out an MSYM entry. */
2300 bfd_mips_elf_swap_msym_out (abfd
, in
, ex
)
2302 const Elf32_Internal_Msym
*in
;
2303 Elf32_External_Msym
*ex
;
2305 bfd_h_put_32 (abfd
, in
->ms_hash_value
, ex
->ms_hash_value
);
2306 bfd_h_put_32 (abfd
, in
->ms_info
, ex
->ms_info
);
2309 /* Determine whether a symbol is global for the purposes of splitting
2310 the symbol table into global symbols and local symbols. At least
2311 on Irix 5, this split must be between section symbols and all other
2312 symbols. On most ELF targets the split is between static symbols
2313 and externally visible symbols. */
2316 mips_elf_sym_is_global (abfd
, sym
)
2317 bfd
*abfd ATTRIBUTE_UNUSED
;
2320 if (SGI_COMPAT (abfd
))
2321 return (sym
->flags
& BSF_SECTION_SYM
) == 0;
2323 return ((sym
->flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
2324 || bfd_is_und_section (bfd_get_section (sym
))
2325 || bfd_is_com_section (bfd_get_section (sym
)));
2328 /* Set the right machine number for a MIPS ELF file. This is used for
2329 both the 32-bit and the 64-bit ABI. */
2332 _bfd_mips_elf_object_p (abfd
)
2335 /* Irix 5 and 6 is broken. Object file symbol tables are not always
2336 sorted correctly such that local symbols precede global symbols,
2337 and the sh_info field in the symbol table is not always right. */
2338 if (SGI_COMPAT(abfd
))
2339 elf_bad_symtab (abfd
) = true;
2341 bfd_default_set_arch_mach (abfd
, bfd_arch_mips
,
2342 elf_mips_mach (elf_elfheader (abfd
)->e_flags
));
2346 /* The final processing done just before writing out a MIPS ELF object
2347 file. This gets the MIPS architecture right based on the machine
2348 number. This is used by both the 32-bit and the 64-bit ABI. */
2351 _bfd_mips_elf_final_write_processing (abfd
, linker
)
2353 boolean linker ATTRIBUTE_UNUSED
;
2357 Elf_Internal_Shdr
**hdrpp
;
2361 switch (bfd_get_mach (abfd
))
2364 case bfd_mach_mips3000
:
2365 val
= E_MIPS_ARCH_1
;
2368 case bfd_mach_mips3900
:
2369 val
= E_MIPS_ARCH_1
| E_MIPS_MACH_3900
;
2372 case bfd_mach_mips6000
:
2373 val
= E_MIPS_ARCH_2
;
2376 case bfd_mach_mips4000
:
2377 case bfd_mach_mips4300
:
2378 case bfd_mach_mips4400
:
2379 case bfd_mach_mips4600
:
2380 val
= E_MIPS_ARCH_3
;
2383 case bfd_mach_mips4010
:
2384 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4010
;
2387 case bfd_mach_mips4100
:
2388 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4100
;
2391 case bfd_mach_mips4111
:
2392 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4111
;
2395 case bfd_mach_mips4650
:
2396 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4650
;
2399 case bfd_mach_mips5000
:
2400 case bfd_mach_mips8000
:
2401 case bfd_mach_mips10000
:
2402 case bfd_mach_mips12000
:
2403 val
= E_MIPS_ARCH_4
;
2406 case bfd_mach_mips32
:
2407 val
= E_MIPS_ARCH_32
;
2410 case bfd_mach_mips32_4k
:
2411 val
= E_MIPS_ARCH_32
| E_MIPS_MACH_MIPS32_4K
;
2414 case bfd_mach_mips5
:
2415 val
= E_MIPS_ARCH_5
;
2418 case bfd_mach_mips64
:
2419 val
= E_MIPS_ARCH_64
;
2422 case bfd_mach_mips_sb1
:
2423 val
= E_MIPS_ARCH_64
| E_MIPS_MACH_SB1
;
2427 elf_elfheader (abfd
)->e_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2428 elf_elfheader (abfd
)->e_flags
|= val
;
2430 /* Set the sh_info field for .gptab sections and other appropriate
2431 info for each special section. */
2432 for (i
= 1, hdrpp
= elf_elfsections (abfd
) + 1;
2433 i
< elf_elfheader (abfd
)->e_shnum
;
2436 switch ((*hdrpp
)->sh_type
)
2439 case SHT_MIPS_LIBLIST
:
2440 sec
= bfd_get_section_by_name (abfd
, ".dynstr");
2442 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2445 case SHT_MIPS_GPTAB
:
2446 BFD_ASSERT ((*hdrpp
)->bfd_section
!= NULL
);
2447 name
= bfd_get_section_name (abfd
, (*hdrpp
)->bfd_section
);
2448 BFD_ASSERT (name
!= NULL
2449 && strncmp (name
, ".gptab.", sizeof ".gptab." - 1) == 0);
2450 sec
= bfd_get_section_by_name (abfd
, name
+ sizeof ".gptab" - 1);
2451 BFD_ASSERT (sec
!= NULL
);
2452 (*hdrpp
)->sh_info
= elf_section_data (sec
)->this_idx
;
2455 case SHT_MIPS_CONTENT
:
2456 BFD_ASSERT ((*hdrpp
)->bfd_section
!= NULL
);
2457 name
= bfd_get_section_name (abfd
, (*hdrpp
)->bfd_section
);
2458 BFD_ASSERT (name
!= NULL
2459 && strncmp (name
, ".MIPS.content",
2460 sizeof ".MIPS.content" - 1) == 0);
2461 sec
= bfd_get_section_by_name (abfd
,
2462 name
+ sizeof ".MIPS.content" - 1);
2463 BFD_ASSERT (sec
!= NULL
);
2464 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2467 case SHT_MIPS_SYMBOL_LIB
:
2468 sec
= bfd_get_section_by_name (abfd
, ".dynsym");
2470 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2471 sec
= bfd_get_section_by_name (abfd
, ".liblist");
2473 (*hdrpp
)->sh_info
= elf_section_data (sec
)->this_idx
;
2476 case SHT_MIPS_EVENTS
:
2477 BFD_ASSERT ((*hdrpp
)->bfd_section
!= NULL
);
2478 name
= bfd_get_section_name (abfd
, (*hdrpp
)->bfd_section
);
2479 BFD_ASSERT (name
!= NULL
);
2480 if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0)
2481 sec
= bfd_get_section_by_name (abfd
,
2482 name
+ sizeof ".MIPS.events" - 1);
2485 BFD_ASSERT (strncmp (name
, ".MIPS.post_rel",
2486 sizeof ".MIPS.post_rel" - 1) == 0);
2487 sec
= bfd_get_section_by_name (abfd
,
2489 + sizeof ".MIPS.post_rel" - 1));
2491 BFD_ASSERT (sec
!= NULL
);
2492 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2499 /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */
2502 _bfd_mips_elf_set_private_flags (abfd
, flags
)
2506 BFD_ASSERT (!elf_flags_init (abfd
)
2507 || elf_elfheader (abfd
)->e_flags
== flags
);
2509 elf_elfheader (abfd
)->e_flags
= flags
;
2510 elf_flags_init (abfd
) = true;
2514 /* Copy backend specific data from one object module to another */
2517 _bfd_mips_elf_copy_private_bfd_data (ibfd
, obfd
)
2521 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2522 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2525 BFD_ASSERT (!elf_flags_init (obfd
)
2526 || (elf_elfheader (obfd
)->e_flags
2527 == elf_elfheader (ibfd
)->e_flags
));
2529 elf_gp (obfd
) = elf_gp (ibfd
);
2530 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
2531 elf_flags_init (obfd
) = true;
2535 /* Merge backend specific data from an object file to the output
2536 object file when linking. */
2539 _bfd_mips_elf_merge_private_bfd_data (ibfd
, obfd
)
2546 boolean null_input_bfd
= true;
2549 /* Check if we have the same endianess */
2550 if (_bfd_generic_verify_endian_match (ibfd
, obfd
) == false)
2553 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2554 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2557 new_flags
= elf_elfheader (ibfd
)->e_flags
;
2558 elf_elfheader (obfd
)->e_flags
|= new_flags
& EF_MIPS_NOREORDER
;
2559 old_flags
= elf_elfheader (obfd
)->e_flags
;
2561 if (! elf_flags_init (obfd
))
2563 elf_flags_init (obfd
) = true;
2564 elf_elfheader (obfd
)->e_flags
= new_flags
;
2565 elf_elfheader (obfd
)->e_ident
[EI_CLASS
]
2566 = elf_elfheader (ibfd
)->e_ident
[EI_CLASS
];
2568 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
2569 && bfd_get_arch_info (obfd
)->the_default
)
2571 if (! bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
2572 bfd_get_mach (ibfd
)))
2579 /* Check flag compatibility. */
2581 new_flags
&= ~EF_MIPS_NOREORDER
;
2582 old_flags
&= ~EF_MIPS_NOREORDER
;
2584 if (new_flags
== old_flags
)
2587 /* Check to see if the input BFD actually contains any sections.
2588 If not, its flags may not have been initialised either, but it cannot
2589 actually cause any incompatibility. */
2590 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2592 /* Ignore synthetic sections and empty .text, .data and .bss sections
2593 which are automatically generated by gas. */
2594 if (strcmp (sec
->name
, ".reginfo")
2595 && strcmp (sec
->name
, ".mdebug")
2596 && ((!strcmp (sec
->name
, ".text")
2597 || !strcmp (sec
->name
, ".data")
2598 || !strcmp (sec
->name
, ".bss"))
2599 && sec
->_raw_size
!= 0))
2601 null_input_bfd
= false;
2610 if ((new_flags
& EF_MIPS_PIC
) != (old_flags
& EF_MIPS_PIC
))
2612 new_flags
&= ~EF_MIPS_PIC
;
2613 old_flags
&= ~EF_MIPS_PIC
;
2614 (*_bfd_error_handler
)
2615 (_("%s: linking PIC files with non-PIC files"),
2616 bfd_get_filename (ibfd
));
2620 if ((new_flags
& EF_MIPS_CPIC
) != (old_flags
& EF_MIPS_CPIC
))
2622 new_flags
&= ~EF_MIPS_CPIC
;
2623 old_flags
&= ~EF_MIPS_CPIC
;
2624 (*_bfd_error_handler
)
2625 (_("%s: linking abicalls files with non-abicalls files"),
2626 bfd_get_filename (ibfd
));
2630 /* Compare the ISA's. */
2631 if ((new_flags
& (EF_MIPS_ARCH
| EF_MIPS_MACH
))
2632 != (old_flags
& (EF_MIPS_ARCH
| EF_MIPS_MACH
)))
2634 int new_mach
= new_flags
& EF_MIPS_MACH
;
2635 int old_mach
= old_flags
& EF_MIPS_MACH
;
2636 int new_isa
= elf_mips_isa (new_flags
);
2637 int old_isa
= elf_mips_isa (old_flags
);
2639 /* If either has no machine specified, just compare the general isa's.
2640 Some combinations of machines are ok, if the isa's match. */
2643 || new_mach
== old_mach
2646 /* Don't warn about mixing code using 32-bit ISAs, or mixing code
2647 using 64-bit ISAs. They will normally use the same data sizes
2648 and calling conventions. */
2650 if (( (new_isa
== 1 || new_isa
== 2 || new_isa
== 32)
2651 ^ (old_isa
== 1 || old_isa
== 2 || old_isa
== 32)) != 0)
2653 (*_bfd_error_handler
)
2654 (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"),
2655 bfd_get_filename (ibfd
), new_isa
, old_isa
);
2662 (*_bfd_error_handler
)
2663 (_("%s: ISA mismatch (%d) with previous modules (%d)"),
2664 bfd_get_filename (ibfd
),
2665 elf_mips_mach (new_flags
),
2666 elf_mips_mach (old_flags
));
2670 new_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2671 old_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2674 /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it
2675 does set EI_CLASS differently from any 32-bit ABI. */
2676 if ((new_flags
& EF_MIPS_ABI
) != (old_flags
& EF_MIPS_ABI
)
2677 || (elf_elfheader (ibfd
)->e_ident
[EI_CLASS
]
2678 != elf_elfheader (obfd
)->e_ident
[EI_CLASS
]))
2680 /* Only error if both are set (to different values). */
2681 if (((new_flags
& EF_MIPS_ABI
) && (old_flags
& EF_MIPS_ABI
))
2682 || (elf_elfheader (ibfd
)->e_ident
[EI_CLASS
]
2683 != elf_elfheader (obfd
)->e_ident
[EI_CLASS
]))
2685 (*_bfd_error_handler
)
2686 (_("%s: ABI mismatch: linking %s module with previous %s modules"),
2687 bfd_get_filename (ibfd
),
2688 elf_mips_abi_name (ibfd
),
2689 elf_mips_abi_name (obfd
));
2692 new_flags
&= ~EF_MIPS_ABI
;
2693 old_flags
&= ~EF_MIPS_ABI
;
2696 /* Warn about any other mismatches */
2697 if (new_flags
!= old_flags
)
2699 (*_bfd_error_handler
)
2700 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
2701 bfd_get_filename (ibfd
), (unsigned long) new_flags
,
2702 (unsigned long) old_flags
);
2708 bfd_set_error (bfd_error_bad_value
);
2716 _bfd_mips_elf_print_private_bfd_data (abfd
, ptr
)
2720 FILE *file
= (FILE *) ptr
;
2722 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
2724 /* Print normal ELF private data. */
2725 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
2727 /* xgettext:c-format */
2728 fprintf (file
, _("private flags = %lx:"), elf_elfheader (abfd
)->e_flags
);
2730 if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_O32
)
2731 fprintf (file
, _(" [abi=O32]"));
2732 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_O64
)
2733 fprintf (file
, _(" [abi=O64]"));
2734 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_EABI32
)
2735 fprintf (file
, _(" [abi=EABI32]"));
2736 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_EABI64
)
2737 fprintf (file
, _(" [abi=EABI64]"));
2738 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
))
2739 fprintf (file
, _(" [abi unknown]"));
2740 else if (ABI_N32_P (abfd
))
2741 fprintf (file
, _(" [abi=N32]"));
2742 else if (ABI_64_P (abfd
))
2743 fprintf (file
, _(" [abi=64]"));
2745 fprintf (file
, _(" [no abi set]"));
2747 if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_1
)
2748 fprintf (file
, _(" [mips1]"));
2749 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_2
)
2750 fprintf (file
, _(" [mips2]"));
2751 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_3
)
2752 fprintf (file
, _(" [mips3]"));
2753 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_4
)
2754 fprintf (file
, _(" [mips4]"));
2755 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_5
)
2756 fprintf (file
, _ (" [mips5]"));
2757 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_32
)
2758 fprintf (file
, _ (" [mips32]"));
2759 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_64
)
2760 fprintf (file
, _ (" [mips64]"));
2762 fprintf (file
, _(" [unknown ISA]"));
2764 if (elf_elfheader (abfd
)->e_flags
& EF_MIPS_32BITMODE
)
2765 fprintf (file
, _(" [32bitmode]"));
2767 fprintf (file
, _(" [not 32bitmode]"));
2774 /* Handle a MIPS specific section when reading an object file. This
2775 is called when elfcode.h finds a section with an unknown type.
2776 This routine supports both the 32-bit and 64-bit ELF ABI.
2778 FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
2782 _bfd_mips_elf_section_from_shdr (abfd
, hdr
, name
)
2784 Elf_Internal_Shdr
*hdr
;
2789 /* There ought to be a place to keep ELF backend specific flags, but
2790 at the moment there isn't one. We just keep track of the
2791 sections by their name, instead. Fortunately, the ABI gives
2792 suggested names for all the MIPS specific sections, so we will
2793 probably get away with this. */
2794 switch (hdr
->sh_type
)
2796 case SHT_MIPS_LIBLIST
:
2797 if (strcmp (name
, ".liblist") != 0)
2801 if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (abfd
)) != 0)
2804 case SHT_MIPS_CONFLICT
:
2805 if (strcmp (name
, ".conflict") != 0)
2808 case SHT_MIPS_GPTAB
:
2809 if (strncmp (name
, ".gptab.", sizeof ".gptab." - 1) != 0)
2812 case SHT_MIPS_UCODE
:
2813 if (strcmp (name
, ".ucode") != 0)
2816 case SHT_MIPS_DEBUG
:
2817 if (strcmp (name
, ".mdebug") != 0)
2819 flags
= SEC_DEBUGGING
;
2821 case SHT_MIPS_REGINFO
:
2822 if (strcmp (name
, ".reginfo") != 0
2823 || hdr
->sh_size
!= sizeof (Elf32_External_RegInfo
))
2825 flags
= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_SAME_SIZE
);
2827 case SHT_MIPS_IFACE
:
2828 if (strcmp (name
, ".MIPS.interfaces") != 0)
2831 case SHT_MIPS_CONTENT
:
2832 if (strncmp (name
, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0)
2835 case SHT_MIPS_OPTIONS
:
2836 if (strcmp (name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) != 0)
2839 case SHT_MIPS_DWARF
:
2840 if (strncmp (name
, ".debug_", sizeof ".debug_" - 1) != 0)
2843 case SHT_MIPS_SYMBOL_LIB
:
2844 if (strcmp (name
, ".MIPS.symlib") != 0)
2847 case SHT_MIPS_EVENTS
:
2848 if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0
2849 && strncmp (name
, ".MIPS.post_rel",
2850 sizeof ".MIPS.post_rel" - 1) != 0)
2857 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
2862 if (! bfd_set_section_flags (abfd
, hdr
->bfd_section
,
2863 (bfd_get_section_flags (abfd
,
2869 /* FIXME: We should record sh_info for a .gptab section. */
2871 /* For a .reginfo section, set the gp value in the tdata information
2872 from the contents of this section. We need the gp value while
2873 processing relocs, so we just get it now. The .reginfo section
2874 is not used in the 64-bit MIPS ELF ABI. */
2875 if (hdr
->sh_type
== SHT_MIPS_REGINFO
)
2877 Elf32_External_RegInfo ext
;
2880 if (! bfd_get_section_contents (abfd
, hdr
->bfd_section
, (PTR
) &ext
,
2881 (file_ptr
) 0, sizeof ext
))
2883 bfd_mips_elf32_swap_reginfo_in (abfd
, &ext
, &s
);
2884 elf_gp (abfd
) = s
.ri_gp_value
;
2887 /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
2888 set the gp value based on what we find. We may see both
2889 SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
2890 they should agree. */
2891 if (hdr
->sh_type
== SHT_MIPS_OPTIONS
)
2893 bfd_byte
*contents
, *l
, *lend
;
2895 contents
= (bfd_byte
*) bfd_malloc (hdr
->sh_size
);
2896 if (contents
== NULL
)
2898 if (! bfd_get_section_contents (abfd
, hdr
->bfd_section
, contents
,
2899 (file_ptr
) 0, hdr
->sh_size
))
2905 lend
= contents
+ hdr
->sh_size
;
2906 while (l
+ sizeof (Elf_External_Options
) <= lend
)
2908 Elf_Internal_Options intopt
;
2910 bfd_mips_elf_swap_options_in (abfd
, (Elf_External_Options
*) l
,
2912 if (ABI_64_P (abfd
) && intopt
.kind
== ODK_REGINFO
)
2914 Elf64_Internal_RegInfo intreg
;
2916 bfd_mips_elf64_swap_reginfo_in
2918 ((Elf64_External_RegInfo
*)
2919 (l
+ sizeof (Elf_External_Options
))),
2921 elf_gp (abfd
) = intreg
.ri_gp_value
;
2923 else if (intopt
.kind
== ODK_REGINFO
)
2925 Elf32_RegInfo intreg
;
2927 bfd_mips_elf32_swap_reginfo_in
2929 ((Elf32_External_RegInfo
*)
2930 (l
+ sizeof (Elf_External_Options
))),
2932 elf_gp (abfd
) = intreg
.ri_gp_value
;
2942 /* Set the correct type for a MIPS ELF section. We do this by the
2943 section name, which is a hack, but ought to work. This routine is
2944 used by both the 32-bit and the 64-bit ABI. */
2947 _bfd_mips_elf_fake_sections (abfd
, hdr
, sec
)
2949 Elf32_Internal_Shdr
*hdr
;
2952 register const char *name
;
2954 name
= bfd_get_section_name (abfd
, sec
);
2956 if (strcmp (name
, ".liblist") == 0)
2958 hdr
->sh_type
= SHT_MIPS_LIBLIST
;
2959 hdr
->sh_info
= sec
->_raw_size
/ sizeof (Elf32_Lib
);
2960 /* The sh_link field is set in final_write_processing. */
2962 else if (strcmp (name
, ".conflict") == 0)
2963 hdr
->sh_type
= SHT_MIPS_CONFLICT
;
2964 else if (strncmp (name
, ".gptab.", sizeof ".gptab." - 1) == 0)
2966 hdr
->sh_type
= SHT_MIPS_GPTAB
;
2967 hdr
->sh_entsize
= sizeof (Elf32_External_gptab
);
2968 /* The sh_info field is set in final_write_processing. */
2970 else if (strcmp (name
, ".ucode") == 0)
2971 hdr
->sh_type
= SHT_MIPS_UCODE
;
2972 else if (strcmp (name
, ".mdebug") == 0)
2974 hdr
->sh_type
= SHT_MIPS_DEBUG
;
2975 /* In a shared object on Irix 5.3, the .mdebug section has an
2976 entsize of 0. FIXME: Does this matter? */
2977 if (SGI_COMPAT (abfd
) && (abfd
->flags
& DYNAMIC
) != 0)
2978 hdr
->sh_entsize
= 0;
2980 hdr
->sh_entsize
= 1;
2982 else if (strcmp (name
, ".reginfo") == 0)
2984 hdr
->sh_type
= SHT_MIPS_REGINFO
;
2985 /* In a shared object on Irix 5.3, the .reginfo section has an
2986 entsize of 0x18. FIXME: Does this matter? */
2987 if (SGI_COMPAT (abfd
))
2989 if ((abfd
->flags
& DYNAMIC
) != 0)
2990 hdr
->sh_entsize
= sizeof (Elf32_External_RegInfo
);
2992 hdr
->sh_entsize
= 1;
2995 hdr
->sh_entsize
= sizeof (Elf32_External_RegInfo
);
2997 else if (SGI_COMPAT (abfd
)
2998 && (strcmp (name
, ".hash") == 0
2999 || strcmp (name
, ".dynamic") == 0
3000 || strcmp (name
, ".dynstr") == 0))
3002 if (SGI_COMPAT (abfd
))
3003 hdr
->sh_entsize
= 0;
3005 /* This isn't how the Irix 6 linker behaves. */
3006 hdr
->sh_info
= SIZEOF_MIPS_DYNSYM_SECNAMES
;
3009 else if (strcmp (name
, ".got") == 0
3010 || strcmp (name
, MIPS_ELF_SRDATA_SECTION_NAME (abfd
)) == 0
3011 || strcmp (name
, ".sdata") == 0
3012 || strcmp (name
, ".sbss") == 0
3013 || strcmp (name
, ".lit4") == 0
3014 || strcmp (name
, ".lit8") == 0)
3015 hdr
->sh_flags
|= SHF_MIPS_GPREL
;
3016 else if (strcmp (name
, ".MIPS.interfaces") == 0)
3018 hdr
->sh_type
= SHT_MIPS_IFACE
;
3019 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3021 else if (strncmp (name
, ".MIPS.content", strlen (".MIPS.content")) == 0)
3023 hdr
->sh_type
= SHT_MIPS_CONTENT
;
3024 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3025 /* The sh_info field is set in final_write_processing. */
3027 else if (strcmp (name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
3029 hdr
->sh_type
= SHT_MIPS_OPTIONS
;
3030 hdr
->sh_entsize
= 1;
3031 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3033 else if (strncmp (name
, ".debug_", sizeof ".debug_" - 1) == 0)
3034 hdr
->sh_type
= SHT_MIPS_DWARF
;
3035 else if (strcmp (name
, ".MIPS.symlib") == 0)
3037 hdr
->sh_type
= SHT_MIPS_SYMBOL_LIB
;
3038 /* The sh_link and sh_info fields are set in
3039 final_write_processing. */
3041 else if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0
3042 || strncmp (name
, ".MIPS.post_rel",
3043 sizeof ".MIPS.post_rel" - 1) == 0)
3045 hdr
->sh_type
= SHT_MIPS_EVENTS
;
3046 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3047 /* The sh_link field is set in final_write_processing. */
3049 else if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (abfd
)) == 0)
3051 hdr
->sh_type
= SHT_MIPS_MSYM
;
3052 hdr
->sh_flags
|= SHF_ALLOC
;
3053 hdr
->sh_entsize
= 8;
3056 /* The generic elf_fake_sections will set up REL_HDR using the
3057 default kind of relocations. But, we may actually need both
3058 kinds of relocations, so we set up the second header here. */
3059 if ((sec
->flags
& SEC_RELOC
) != 0)
3061 struct bfd_elf_section_data
*esd
;
3063 esd
= elf_section_data (sec
);
3064 BFD_ASSERT (esd
->rel_hdr2
== NULL
);
3066 = (Elf_Internal_Shdr
*) bfd_zalloc (abfd
, sizeof (Elf_Internal_Shdr
));
3069 _bfd_elf_init_reloc_shdr (abfd
, esd
->rel_hdr2
, sec
,
3070 !elf_section_data (sec
)->use_rela_p
);
3076 /* Given a BFD section, try to locate the corresponding ELF section
3077 index. This is used by both the 32-bit and the 64-bit ABI.
3078 Actually, it's not clear to me that the 64-bit ABI supports these,
3079 but for non-PIC objects we will certainly want support for at least
3080 the .scommon section. */
3083 _bfd_mips_elf_section_from_bfd_section (abfd
, hdr
, sec
, retval
)
3084 bfd
*abfd ATTRIBUTE_UNUSED
;
3085 Elf_Internal_Shdr
*hdr ATTRIBUTE_UNUSED
;
3089 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
3091 *retval
= SHN_MIPS_SCOMMON
;
3094 if (strcmp (bfd_get_section_name (abfd
, sec
), ".acommon") == 0)
3096 *retval
= SHN_MIPS_ACOMMON
;
3102 /* When are writing out the .options or .MIPS.options section,
3103 remember the bytes we are writing out, so that we can install the
3104 GP value in the section_processing routine. */
3107 _bfd_mips_elf_set_section_contents (abfd
, section
, location
, offset
, count
)
3112 bfd_size_type count
;
3114 if (strcmp (section
->name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
3118 if (elf_section_data (section
) == NULL
)
3120 section
->used_by_bfd
=
3121 (PTR
) bfd_zalloc (abfd
, sizeof (struct bfd_elf_section_data
));
3122 if (elf_section_data (section
) == NULL
)
3125 c
= (bfd_byte
*) elf_section_data (section
)->tdata
;
3130 if (section
->_cooked_size
!= 0)
3131 size
= section
->_cooked_size
;
3133 size
= section
->_raw_size
;
3134 c
= (bfd_byte
*) bfd_zalloc (abfd
, size
);
3137 elf_section_data (section
)->tdata
= (PTR
) c
;
3140 memcpy (c
+ offset
, location
, count
);
3143 return _bfd_elf_set_section_contents (abfd
, section
, location
, offset
,
3147 /* Work over a section just before writing it out. This routine is
3148 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3149 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3153 _bfd_mips_elf_section_processing (abfd
, hdr
)
3155 Elf_Internal_Shdr
*hdr
;
3157 if (hdr
->sh_type
== SHT_MIPS_REGINFO
3158 && hdr
->sh_size
> 0)
3162 BFD_ASSERT (hdr
->sh_size
== sizeof (Elf32_External_RegInfo
));
3163 BFD_ASSERT (hdr
->contents
== NULL
);
3166 hdr
->sh_offset
+ sizeof (Elf32_External_RegInfo
) - 4,
3169 bfd_h_put_32 (abfd
, (bfd_vma
) elf_gp (abfd
), buf
);
3170 if (bfd_write (buf
, (bfd_size_type
) 1, (bfd_size_type
) 4, abfd
) != 4)
3174 if (hdr
->sh_type
== SHT_MIPS_OPTIONS
3175 && hdr
->bfd_section
!= NULL
3176 && elf_section_data (hdr
->bfd_section
) != NULL
3177 && elf_section_data (hdr
->bfd_section
)->tdata
!= NULL
)
3179 bfd_byte
*contents
, *l
, *lend
;
3181 /* We stored the section contents in the elf_section_data tdata
3182 field in the set_section_contents routine. We save the
3183 section contents so that we don't have to read them again.
3184 At this point we know that elf_gp is set, so we can look
3185 through the section contents to see if there is an
3186 ODK_REGINFO structure. */
3188 contents
= (bfd_byte
*) elf_section_data (hdr
->bfd_section
)->tdata
;
3190 lend
= contents
+ hdr
->sh_size
;
3191 while (l
+ sizeof (Elf_External_Options
) <= lend
)
3193 Elf_Internal_Options intopt
;
3195 bfd_mips_elf_swap_options_in (abfd
, (Elf_External_Options
*) l
,
3197 if (ABI_64_P (abfd
) && intopt
.kind
== ODK_REGINFO
)
3204 + sizeof (Elf_External_Options
)
3205 + (sizeof (Elf64_External_RegInfo
) - 8)),
3208 bfd_h_put_64 (abfd
, elf_gp (abfd
), buf
);
3209 if (bfd_write (buf
, 1, 8, abfd
) != 8)
3212 else if (intopt
.kind
== ODK_REGINFO
)
3219 + sizeof (Elf_External_Options
)
3220 + (sizeof (Elf32_External_RegInfo
) - 4)),
3223 bfd_h_put_32 (abfd
, elf_gp (abfd
), buf
);
3224 if (bfd_write (buf
, 1, 4, abfd
) != 4)
3231 if (hdr
->bfd_section
!= NULL
)
3233 const char *name
= bfd_get_section_name (abfd
, hdr
->bfd_section
);
3235 if (strcmp (name
, ".sdata") == 0
3236 || strcmp (name
, ".lit8") == 0
3237 || strcmp (name
, ".lit4") == 0)
3239 hdr
->sh_flags
|= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
3240 hdr
->sh_type
= SHT_PROGBITS
;
3242 else if (strcmp (name
, ".sbss") == 0)
3244 hdr
->sh_flags
|= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
3245 hdr
->sh_type
= SHT_NOBITS
;
3247 else if (strcmp (name
, MIPS_ELF_SRDATA_SECTION_NAME (abfd
)) == 0)
3249 hdr
->sh_flags
|= SHF_ALLOC
| SHF_MIPS_GPREL
;
3250 hdr
->sh_type
= SHT_PROGBITS
;
3252 else if (strcmp (name
, ".compact_rel") == 0)
3255 hdr
->sh_type
= SHT_PROGBITS
;
3257 else if (strcmp (name
, ".rtproc") == 0)
3259 if (hdr
->sh_addralign
!= 0 && hdr
->sh_entsize
== 0)
3261 unsigned int adjust
;
3263 adjust
= hdr
->sh_size
% hdr
->sh_addralign
;
3265 hdr
->sh_size
+= hdr
->sh_addralign
- adjust
;
3273 /* MIPS ELF uses two common sections. One is the usual one, and the
3274 other is for small objects. All the small objects are kept
3275 together, and then referenced via the gp pointer, which yields
3276 faster assembler code. This is what we use for the small common
3277 section. This approach is copied from ecoff.c. */
3278 static asection mips_elf_scom_section
;
3279 static asymbol mips_elf_scom_symbol
;
3280 static asymbol
*mips_elf_scom_symbol_ptr
;
3282 /* MIPS ELF also uses an acommon section, which represents an
3283 allocated common symbol which may be overridden by a
3284 definition in a shared library. */
3285 static asection mips_elf_acom_section
;
3286 static asymbol mips_elf_acom_symbol
;
3287 static asymbol
*mips_elf_acom_symbol_ptr
;
3289 /* Handle the special MIPS section numbers that a symbol may use.
3290 This is used for both the 32-bit and the 64-bit ABI. */
3293 _bfd_mips_elf_symbol_processing (abfd
, asym
)
3297 elf_symbol_type
*elfsym
;
3299 elfsym
= (elf_symbol_type
*) asym
;
3300 switch (elfsym
->internal_elf_sym
.st_shndx
)
3302 case SHN_MIPS_ACOMMON
:
3303 /* This section is used in a dynamically linked executable file.
3304 It is an allocated common section. The dynamic linker can
3305 either resolve these symbols to something in a shared
3306 library, or it can just leave them here. For our purposes,
3307 we can consider these symbols to be in a new section. */
3308 if (mips_elf_acom_section
.name
== NULL
)
3310 /* Initialize the acommon section. */
3311 mips_elf_acom_section
.name
= ".acommon";
3312 mips_elf_acom_section
.flags
= SEC_ALLOC
;
3313 mips_elf_acom_section
.output_section
= &mips_elf_acom_section
;
3314 mips_elf_acom_section
.symbol
= &mips_elf_acom_symbol
;
3315 mips_elf_acom_section
.symbol_ptr_ptr
= &mips_elf_acom_symbol_ptr
;
3316 mips_elf_acom_symbol
.name
= ".acommon";
3317 mips_elf_acom_symbol
.flags
= BSF_SECTION_SYM
;
3318 mips_elf_acom_symbol
.section
= &mips_elf_acom_section
;
3319 mips_elf_acom_symbol_ptr
= &mips_elf_acom_symbol
;
3321 asym
->section
= &mips_elf_acom_section
;
3325 /* Common symbols less than the GP size are automatically
3326 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3327 if (asym
->value
> elf_gp_size (abfd
)
3328 || IRIX_COMPAT (abfd
) == ict_irix6
)
3331 case SHN_MIPS_SCOMMON
:
3332 if (mips_elf_scom_section
.name
== NULL
)
3334 /* Initialize the small common section. */
3335 mips_elf_scom_section
.name
= ".scommon";
3336 mips_elf_scom_section
.flags
= SEC_IS_COMMON
;
3337 mips_elf_scom_section
.output_section
= &mips_elf_scom_section
;
3338 mips_elf_scom_section
.symbol
= &mips_elf_scom_symbol
;
3339 mips_elf_scom_section
.symbol_ptr_ptr
= &mips_elf_scom_symbol_ptr
;
3340 mips_elf_scom_symbol
.name
= ".scommon";
3341 mips_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
3342 mips_elf_scom_symbol
.section
= &mips_elf_scom_section
;
3343 mips_elf_scom_symbol_ptr
= &mips_elf_scom_symbol
;
3345 asym
->section
= &mips_elf_scom_section
;
3346 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
3349 case SHN_MIPS_SUNDEFINED
:
3350 asym
->section
= bfd_und_section_ptr
;
3353 #if 0 /* for SGI_COMPAT */
3355 asym
->section
= mips_elf_text_section_ptr
;
3359 asym
->section
= mips_elf_data_section_ptr
;
3365 /* When creating an Irix 5 executable, we need REGINFO and RTPROC
3369 _bfd_mips_elf_additional_program_headers (abfd
)
3375 /* See if we need a PT_MIPS_REGINFO segment. */
3376 s
= bfd_get_section_by_name (abfd
, ".reginfo");
3377 if (s
&& (s
->flags
& SEC_LOAD
))
3380 /* See if we need a PT_MIPS_OPTIONS segment. */
3381 if (IRIX_COMPAT (abfd
) == ict_irix6
3382 && bfd_get_section_by_name (abfd
,
3383 MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)))
3386 /* See if we need a PT_MIPS_RTPROC segment. */
3387 if (IRIX_COMPAT (abfd
) == ict_irix5
3388 && bfd_get_section_by_name (abfd
, ".dynamic")
3389 && bfd_get_section_by_name (abfd
, ".mdebug"))
3395 /* Modify the segment map for an Irix 5 executable. */
3398 _bfd_mips_elf_modify_segment_map (abfd
)
3402 struct elf_segment_map
*m
, **pm
;
3404 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3406 s
= bfd_get_section_by_name (abfd
, ".reginfo");
3407 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0)
3409 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
3410 if (m
->p_type
== PT_MIPS_REGINFO
)
3414 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
3418 m
->p_type
= PT_MIPS_REGINFO
;
3422 /* We want to put it after the PHDR and INTERP segments. */
3423 pm
= &elf_tdata (abfd
)->segment_map
;
3425 && ((*pm
)->p_type
== PT_PHDR
3426 || (*pm
)->p_type
== PT_INTERP
))
3434 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3435 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3436 PT_OPTIONS segement immediately following the program header
3438 if (IRIX_COMPAT (abfd
) == ict_irix6
)
3442 for (s
= abfd
->sections
; s
; s
= s
->next
)
3443 if (elf_section_data (s
)->this_hdr
.sh_type
== SHT_MIPS_OPTIONS
)
3448 struct elf_segment_map
*options_segment
;
3450 /* Usually, there's a program header table. But, sometimes
3451 there's not (like when running the `ld' testsuite). So,
3452 if there's no program header table, we just put the
3453 options segement at the end. */
3454 for (pm
= &elf_tdata (abfd
)->segment_map
;
3457 if ((*pm
)->p_type
== PT_PHDR
)
3460 options_segment
= bfd_zalloc (abfd
,
3461 sizeof (struct elf_segment_map
));
3462 options_segment
->next
= *pm
;
3463 options_segment
->p_type
= PT_MIPS_OPTIONS
;
3464 options_segment
->p_flags
= PF_R
;
3465 options_segment
->p_flags_valid
= true;
3466 options_segment
->count
= 1;
3467 options_segment
->sections
[0] = s
;
3468 *pm
= options_segment
;
3473 if (IRIX_COMPAT (abfd
) == ict_irix5
)
3475 /* If there are .dynamic and .mdebug sections, we make a room
3476 for the RTPROC header. FIXME: Rewrite without section names. */
3477 if (bfd_get_section_by_name (abfd
, ".interp") == NULL
3478 && bfd_get_section_by_name (abfd
, ".dynamic") != NULL
3479 && bfd_get_section_by_name (abfd
, ".mdebug") != NULL
)
3481 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
3482 if (m
->p_type
== PT_MIPS_RTPROC
)
3486 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
3490 m
->p_type
= PT_MIPS_RTPROC
;
3492 s
= bfd_get_section_by_name (abfd
, ".rtproc");
3497 m
->p_flags_valid
= 1;
3505 /* We want to put it after the DYNAMIC segment. */
3506 pm
= &elf_tdata (abfd
)->segment_map
;
3507 while (*pm
!= NULL
&& (*pm
)->p_type
!= PT_DYNAMIC
)
3517 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
3518 .dynstr, .dynsym, and .hash sections, and everything in
3520 for (pm
= &elf_tdata (abfd
)->segment_map
; *pm
!= NULL
;
3522 if ((*pm
)->p_type
== PT_DYNAMIC
)
3525 if (IRIX_COMPAT (abfd
) == ict_none
)
3527 /* For a normal mips executable the permissions for the PT_DYNAMIC
3528 segment are read, write and execute. We do that here since
3529 the code in elf.c sets only the read permission. This matters
3530 sometimes for the dynamic linker. */
3531 if (bfd_get_section_by_name (abfd
, ".dynamic") != NULL
)
3533 m
->p_flags
= PF_R
| PF_W
| PF_X
;
3534 m
->p_flags_valid
= 1;
3538 && m
->count
== 1 && strcmp (m
->sections
[0]->name
, ".dynamic") == 0)
3540 static const char *sec_names
[] =
3542 ".dynamic", ".dynstr", ".dynsym", ".hash"
3546 struct elf_segment_map
*n
;
3550 for (i
= 0; i
< sizeof sec_names
/ sizeof sec_names
[0]; i
++)
3552 s
= bfd_get_section_by_name (abfd
, sec_names
[i
]);
3553 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0)
3559 sz
= s
->_cooked_size
;
3562 if (high
< s
->vma
+ sz
)
3568 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
3569 if ((s
->flags
& SEC_LOAD
) != 0
3572 + (s
->_cooked_size
!=
3573 0 ? s
->_cooked_size
: s
->_raw_size
)) <= high
))
3576 n
= ((struct elf_segment_map
*)
3577 bfd_zalloc (abfd
, sizeof *n
+ (c
- 1) * sizeof (asection
*)));
3584 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
3586 if ((s
->flags
& SEC_LOAD
) != 0
3589 + (s
->_cooked_size
!= 0 ?
3590 s
->_cooked_size
: s
->_raw_size
)) <= high
))
3604 /* The structure of the runtime procedure descriptor created by the
3605 loader for use by the static exception system. */
3607 typedef struct runtime_pdr
{
3608 bfd_vma adr
; /* memory address of start of procedure */
3609 long regmask
; /* save register mask */
3610 long regoffset
; /* save register offset */
3611 long fregmask
; /* save floating point register mask */
3612 long fregoffset
; /* save floating point register offset */
3613 long frameoffset
; /* frame size */
3614 short framereg
; /* frame pointer register */
3615 short pcreg
; /* offset or reg of return pc */
3616 long irpss
; /* index into the runtime string table */
3618 struct exception_info
*exception_info
;/* pointer to exception array */
3620 #define cbRPDR sizeof (RPDR)
3621 #define rpdNil ((pRPDR) 0)
3623 /* Swap RPDR (runtime procedure table entry) for output. */
3625 static void ecoff_swap_rpdr_out
3626 PARAMS ((bfd
*, const RPDR
*, struct rpdr_ext
*));
3629 ecoff_swap_rpdr_out (abfd
, in
, ex
)
3632 struct rpdr_ext
*ex
;
3634 /* ecoff_put_off was defined in ecoffswap.h. */
3635 ecoff_put_off (abfd
, in
->adr
, (bfd_byte
*) ex
->p_adr
);
3636 bfd_h_put_32 (abfd
, in
->regmask
, (bfd_byte
*) ex
->p_regmask
);
3637 bfd_h_put_32 (abfd
, in
->regoffset
, (bfd_byte
*) ex
->p_regoffset
);
3638 bfd_h_put_32 (abfd
, in
->fregmask
, (bfd_byte
*) ex
->p_fregmask
);
3639 bfd_h_put_32 (abfd
, in
->fregoffset
, (bfd_byte
*) ex
->p_fregoffset
);
3640 bfd_h_put_32 (abfd
, in
->frameoffset
, (bfd_byte
*) ex
->p_frameoffset
);
3642 bfd_h_put_16 (abfd
, in
->framereg
, (bfd_byte
*) ex
->p_framereg
);
3643 bfd_h_put_16 (abfd
, in
->pcreg
, (bfd_byte
*) ex
->p_pcreg
);
3645 bfd_h_put_32 (abfd
, in
->irpss
, (bfd_byte
*) ex
->p_irpss
);
3647 ecoff_put_off (abfd
, in
->exception_info
, (bfd_byte
*) ex
->p_exception_info
);
3651 /* Read ECOFF debugging information from a .mdebug section into a
3652 ecoff_debug_info structure. */
3655 _bfd_mips_elf_read_ecoff_info (abfd
, section
, debug
)
3658 struct ecoff_debug_info
*debug
;
3661 const struct ecoff_debug_swap
*swap
;
3662 char *ext_hdr
= NULL
;
3664 swap
= get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
3665 memset (debug
, 0, sizeof (*debug
));
3667 ext_hdr
= (char *) bfd_malloc ((size_t) swap
->external_hdr_size
);
3668 if (ext_hdr
== NULL
&& swap
->external_hdr_size
!= 0)
3671 if (bfd_get_section_contents (abfd
, section
, ext_hdr
, (file_ptr
) 0,
3672 swap
->external_hdr_size
)
3676 symhdr
= &debug
->symbolic_header
;
3677 (*swap
->swap_hdr_in
) (abfd
, ext_hdr
, symhdr
);
3679 /* The symbolic header contains absolute file offsets and sizes to
3681 #define READ(ptr, offset, count, size, type) \
3682 if (symhdr->count == 0) \
3683 debug->ptr = NULL; \
3686 debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
3687 if (debug->ptr == NULL) \
3688 goto error_return; \
3689 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
3690 || (bfd_read (debug->ptr, size, symhdr->count, \
3691 abfd) != size * symhdr->count)) \
3692 goto error_return; \
3695 READ (line
, cbLineOffset
, cbLine
, sizeof (unsigned char), unsigned char *);
3696 READ (external_dnr
, cbDnOffset
, idnMax
, swap
->external_dnr_size
, PTR
);
3697 READ (external_pdr
, cbPdOffset
, ipdMax
, swap
->external_pdr_size
, PTR
);
3698 READ (external_sym
, cbSymOffset
, isymMax
, swap
->external_sym_size
, PTR
);
3699 READ (external_opt
, cbOptOffset
, ioptMax
, swap
->external_opt_size
, PTR
);
3700 READ (external_aux
, cbAuxOffset
, iauxMax
, sizeof (union aux_ext
),
3702 READ (ss
, cbSsOffset
, issMax
, sizeof (char), char *);
3703 READ (ssext
, cbSsExtOffset
, issExtMax
, sizeof (char), char *);
3704 READ (external_fdr
, cbFdOffset
, ifdMax
, swap
->external_fdr_size
, PTR
);
3705 READ (external_rfd
, cbRfdOffset
, crfd
, swap
->external_rfd_size
, PTR
);
3706 READ (external_ext
, cbExtOffset
, iextMax
, swap
->external_ext_size
, PTR
);
3710 debug
->adjust
= NULL
;
3715 if (ext_hdr
!= NULL
)
3717 if (debug
->line
!= NULL
)
3719 if (debug
->external_dnr
!= NULL
)
3720 free (debug
->external_dnr
);
3721 if (debug
->external_pdr
!= NULL
)
3722 free (debug
->external_pdr
);
3723 if (debug
->external_sym
!= NULL
)
3724 free (debug
->external_sym
);
3725 if (debug
->external_opt
!= NULL
)
3726 free (debug
->external_opt
);
3727 if (debug
->external_aux
!= NULL
)
3728 free (debug
->external_aux
);
3729 if (debug
->ss
!= NULL
)
3731 if (debug
->ssext
!= NULL
)
3732 free (debug
->ssext
);
3733 if (debug
->external_fdr
!= NULL
)
3734 free (debug
->external_fdr
);
3735 if (debug
->external_rfd
!= NULL
)
3736 free (debug
->external_rfd
);
3737 if (debug
->external_ext
!= NULL
)
3738 free (debug
->external_ext
);
3742 /* MIPS ELF local labels start with '$', not 'L'. */
3745 mips_elf_is_local_label_name (abfd
, name
)
3752 /* On Irix 6, the labels go back to starting with '.', so we accept
3753 the generic ELF local label syntax as well. */
3754 return _bfd_elf_is_local_label_name (abfd
, name
);
3757 /* MIPS ELF uses a special find_nearest_line routine in order the
3758 handle the ECOFF debugging information. */
3760 struct mips_elf_find_line
3762 struct ecoff_debug_info d
;
3763 struct ecoff_find_line i
;
3767 _bfd_mips_elf_find_nearest_line (abfd
, section
, symbols
, offset
, filename_ptr
,
3768 functionname_ptr
, line_ptr
)
3773 const char **filename_ptr
;
3774 const char **functionname_ptr
;
3775 unsigned int *line_ptr
;
3779 if (_bfd_dwarf1_find_nearest_line (abfd
, section
, symbols
, offset
,
3780 filename_ptr
, functionname_ptr
,
3784 if (_bfd_dwarf2_find_nearest_line (abfd
, section
, symbols
, offset
,
3785 filename_ptr
, functionname_ptr
,
3787 ABI_64_P (abfd
) ? 8 : 0,
3788 &elf_tdata (abfd
)->dwarf2_find_line_info
))
3791 msec
= bfd_get_section_by_name (abfd
, ".mdebug");
3795 struct mips_elf_find_line
*fi
;
3796 const struct ecoff_debug_swap
* const swap
=
3797 get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
3799 /* If we are called during a link, mips_elf_final_link may have
3800 cleared the SEC_HAS_CONTENTS field. We force it back on here
3801 if appropriate (which it normally will be). */
3802 origflags
= msec
->flags
;
3803 if (elf_section_data (msec
)->this_hdr
.sh_type
!= SHT_NOBITS
)
3804 msec
->flags
|= SEC_HAS_CONTENTS
;
3806 fi
= elf_tdata (abfd
)->find_line_info
;
3809 bfd_size_type external_fdr_size
;
3812 struct fdr
*fdr_ptr
;
3814 fi
= ((struct mips_elf_find_line
*)
3815 bfd_zalloc (abfd
, sizeof (struct mips_elf_find_line
)));
3818 msec
->flags
= origflags
;
3822 if (! _bfd_mips_elf_read_ecoff_info (abfd
, msec
, &fi
->d
))
3824 msec
->flags
= origflags
;
3828 /* Swap in the FDR information. */
3829 fi
->d
.fdr
= ((struct fdr
*)
3831 (fi
->d
.symbolic_header
.ifdMax
*
3832 sizeof (struct fdr
))));
3833 if (fi
->d
.fdr
== NULL
)
3835 msec
->flags
= origflags
;
3838 external_fdr_size
= swap
->external_fdr_size
;
3839 fdr_ptr
= fi
->d
.fdr
;
3840 fraw_src
= (char *) fi
->d
.external_fdr
;
3841 fraw_end
= (fraw_src
3842 + fi
->d
.symbolic_header
.ifdMax
* external_fdr_size
);
3843 for (; fraw_src
< fraw_end
; fraw_src
+= external_fdr_size
, fdr_ptr
++)
3844 (*swap
->swap_fdr_in
) (abfd
, (PTR
) fraw_src
, fdr_ptr
);
3846 elf_tdata (abfd
)->find_line_info
= fi
;
3848 /* Note that we don't bother to ever free this information.
3849 find_nearest_line is either called all the time, as in
3850 objdump -l, so the information should be saved, or it is
3851 rarely called, as in ld error messages, so the memory
3852 wasted is unimportant. Still, it would probably be a
3853 good idea for free_cached_info to throw it away. */
3856 if (_bfd_ecoff_locate_line (abfd
, section
, offset
, &fi
->d
, swap
,
3857 &fi
->i
, filename_ptr
, functionname_ptr
,
3860 msec
->flags
= origflags
;
3864 msec
->flags
= origflags
;
3867 /* Fall back on the generic ELF find_nearest_line routine. */
3869 return _bfd_elf_find_nearest_line (abfd
, section
, symbols
, offset
,
3870 filename_ptr
, functionname_ptr
,
3874 /* The mips16 compiler uses a couple of special sections to handle
3875 floating point arguments.
3877 Section names that look like .mips16.fn.FNNAME contain stubs that
3878 copy floating point arguments from the fp regs to the gp regs and
3879 then jump to FNNAME. If any 32 bit function calls FNNAME, the
3880 call should be redirected to the stub instead. If no 32 bit
3881 function calls FNNAME, the stub should be discarded. We need to
3882 consider any reference to the function, not just a call, because
3883 if the address of the function is taken we will need the stub,
3884 since the address might be passed to a 32 bit function.
3886 Section names that look like .mips16.call.FNNAME contain stubs
3887 that copy floating point arguments from the gp regs to the fp
3888 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
3889 then any 16 bit function that calls FNNAME should be redirected
3890 to the stub instead. If FNNAME is not a 32 bit function, the
3891 stub should be discarded.
3893 .mips16.call.fp.FNNAME sections are similar, but contain stubs
3894 which call FNNAME and then copy the return value from the fp regs
3895 to the gp regs. These stubs store the return value in $18 while
3896 calling FNNAME; any function which might call one of these stubs
3897 must arrange to save $18 around the call. (This case is not
3898 needed for 32 bit functions that call 16 bit functions, because
3899 16 bit functions always return floating point values in both
3902 Note that in all cases FNNAME might be defined statically.
3903 Therefore, FNNAME is not used literally. Instead, the relocation
3904 information will indicate which symbol the section is for.
3906 We record any stubs that we find in the symbol table. */
3908 #define FN_STUB ".mips16.fn."
3909 #define CALL_STUB ".mips16.call."
3910 #define CALL_FP_STUB ".mips16.call.fp."
3912 /* MIPS ELF linker hash table. */
3914 struct mips_elf_link_hash_table
3916 struct elf_link_hash_table root
;
3918 /* We no longer use this. */
3919 /* String section indices for the dynamic section symbols. */
3920 bfd_size_type dynsym_sec_strindex
[SIZEOF_MIPS_DYNSYM_SECNAMES
];
3922 /* The number of .rtproc entries. */
3923 bfd_size_type procedure_count
;
3924 /* The size of the .compact_rel section (if SGI_COMPAT). */
3925 bfd_size_type compact_rel_size
;
3926 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
3927 entry is set to the address of __rld_obj_head as in Irix 5. */
3928 boolean use_rld_obj_head
;
3929 /* This is the value of the __rld_map or __rld_obj_head symbol. */
3931 /* This is set if we see any mips16 stub sections. */
3932 boolean mips16_stubs_seen
;
3935 /* Look up an entry in a MIPS ELF linker hash table. */
3937 #define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
3938 ((struct mips_elf_link_hash_entry *) \
3939 elf_link_hash_lookup (&(table)->root, (string), (create), \
3942 /* Traverse a MIPS ELF linker hash table. */
3944 #define mips_elf_link_hash_traverse(table, func, info) \
3945 (elf_link_hash_traverse \
3947 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
3950 /* Get the MIPS ELF linker hash table from a link_info structure. */
3952 #define mips_elf_hash_table(p) \
3953 ((struct mips_elf_link_hash_table *) ((p)->hash))
3955 static boolean mips_elf_output_extsym
3956 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
3958 /* Create an entry in a MIPS ELF linker hash table. */
3960 static struct bfd_hash_entry
*
3961 mips_elf_link_hash_newfunc (entry
, table
, string
)
3962 struct bfd_hash_entry
*entry
;
3963 struct bfd_hash_table
*table
;
3966 struct mips_elf_link_hash_entry
*ret
=
3967 (struct mips_elf_link_hash_entry
*) entry
;
3969 /* Allocate the structure if it has not already been allocated by a
3971 if (ret
== (struct mips_elf_link_hash_entry
*) NULL
)
3972 ret
= ((struct mips_elf_link_hash_entry
*)
3973 bfd_hash_allocate (table
,
3974 sizeof (struct mips_elf_link_hash_entry
)));
3975 if (ret
== (struct mips_elf_link_hash_entry
*) NULL
)
3976 return (struct bfd_hash_entry
*) ret
;
3978 /* Call the allocation method of the superclass. */
3979 ret
= ((struct mips_elf_link_hash_entry
*)
3980 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
3982 if (ret
!= (struct mips_elf_link_hash_entry
*) NULL
)
3984 /* Set local fields. */
3985 memset (&ret
->esym
, 0, sizeof (EXTR
));
3986 /* We use -2 as a marker to indicate that the information has
3987 not been set. -1 means there is no associated ifd. */
3989 ret
->possibly_dynamic_relocs
= 0;
3990 ret
->readonly_reloc
= false;
3991 ret
->min_dyn_reloc_index
= 0;
3992 ret
->no_fn_stub
= false;
3993 ret
->fn_stub
= NULL
;
3994 ret
->need_fn_stub
= false;
3995 ret
->call_stub
= NULL
;
3996 ret
->call_fp_stub
= NULL
;
3999 return (struct bfd_hash_entry
*) ret
;
4003 _bfd_mips_elf_hide_symbol (info
, h
)
4004 struct bfd_link_info
*info
;
4005 struct mips_elf_link_hash_entry
*h
;
4009 struct mips_got_info
*g
;
4010 dynobj
= elf_hash_table (info
)->dynobj
;
4011 got
= bfd_get_section_by_name (dynobj
, ".got");
4012 g
= (struct mips_got_info
*) elf_section_data (got
)->tdata
;
4014 h
->root
.elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4015 h
->root
.plt
.offset
= (bfd_vma
) -1;
4016 if ((h
->root
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0)
4017 h
->root
.dynindx
= -1;
4019 /* FIXME: Do we allocate too much GOT space here? */
4021 got
->_raw_size
+= MIPS_ELF_GOT_SIZE (dynobj
);
4024 /* Create a MIPS ELF linker hash table. */
4026 struct bfd_link_hash_table
*
4027 _bfd_mips_elf_link_hash_table_create (abfd
)
4030 struct mips_elf_link_hash_table
*ret
;
4032 ret
= ((struct mips_elf_link_hash_table
*)
4033 bfd_alloc (abfd
, sizeof (struct mips_elf_link_hash_table
)));
4034 if (ret
== (struct mips_elf_link_hash_table
*) NULL
)
4037 if (! _bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
4038 mips_elf_link_hash_newfunc
))
4040 bfd_release (abfd
, ret
);
4045 /* We no longer use this. */
4046 for (i
= 0; i
< SIZEOF_MIPS_DYNSYM_SECNAMES
; i
++)
4047 ret
->dynsym_sec_strindex
[i
] = (bfd_size_type
) -1;
4049 ret
->procedure_count
= 0;
4050 ret
->compact_rel_size
= 0;
4051 ret
->use_rld_obj_head
= false;
4053 ret
->mips16_stubs_seen
= false;
4055 return &ret
->root
.root
;
4058 /* Hook called by the linker routine which adds symbols from an object
4059 file. We must handle the special MIPS section numbers here. */
4062 _bfd_mips_elf_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
4064 struct bfd_link_info
*info
;
4065 const Elf_Internal_Sym
*sym
;
4067 flagword
*flagsp ATTRIBUTE_UNUSED
;
4071 if (SGI_COMPAT (abfd
)
4072 && (abfd
->flags
& DYNAMIC
) != 0
4073 && strcmp (*namep
, "_rld_new_interface") == 0)
4075 /* Skip Irix 5 rld entry name. */
4080 switch (sym
->st_shndx
)
4083 /* Common symbols less than the GP size are automatically
4084 treated as SHN_MIPS_SCOMMON symbols. */
4085 if (sym
->st_size
> elf_gp_size (abfd
)
4086 || IRIX_COMPAT (abfd
) == ict_irix6
)
4089 case SHN_MIPS_SCOMMON
:
4090 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
4091 (*secp
)->flags
|= SEC_IS_COMMON
;
4092 *valp
= sym
->st_size
;
4096 /* This section is used in a shared object. */
4097 if (elf_tdata (abfd
)->elf_text_section
== NULL
)
4099 asymbol
*elf_text_symbol
;
4100 asection
*elf_text_section
;
4102 elf_text_section
= bfd_zalloc (abfd
, sizeof (asection
));
4103 if (elf_text_section
== NULL
)
4106 elf_text_symbol
= bfd_zalloc (abfd
, sizeof (asymbol
));
4107 if (elf_text_symbol
== NULL
)
4110 /* Initialize the section. */
4112 elf_tdata (abfd
)->elf_text_section
= elf_text_section
;
4113 elf_tdata (abfd
)->elf_text_symbol
= elf_text_symbol
;
4115 elf_text_section
->symbol
= elf_text_symbol
;
4116 elf_text_section
->symbol_ptr_ptr
= &elf_tdata (abfd
)->elf_text_symbol
;
4118 elf_text_section
->name
= ".text";
4119 elf_text_section
->flags
= SEC_NO_FLAGS
;
4120 elf_text_section
->output_section
= NULL
;
4121 elf_text_section
->owner
= abfd
;
4122 elf_text_symbol
->name
= ".text";
4123 elf_text_symbol
->flags
= BSF_SECTION_SYM
| BSF_DYNAMIC
;
4124 elf_text_symbol
->section
= elf_text_section
;
4126 /* This code used to do *secp = bfd_und_section_ptr if
4127 info->shared. I don't know why, and that doesn't make sense,
4128 so I took it out. */
4129 *secp
= elf_tdata (abfd
)->elf_text_section
;
4132 case SHN_MIPS_ACOMMON
:
4133 /* Fall through. XXX Can we treat this as allocated data? */
4135 /* This section is used in a shared object. */
4136 if (elf_tdata (abfd
)->elf_data_section
== NULL
)
4138 asymbol
*elf_data_symbol
;
4139 asection
*elf_data_section
;
4141 elf_data_section
= bfd_zalloc (abfd
, sizeof (asection
));
4142 if (elf_data_section
== NULL
)
4145 elf_data_symbol
= bfd_zalloc (abfd
, sizeof (asymbol
));
4146 if (elf_data_symbol
== NULL
)
4149 /* Initialize the section. */
4151 elf_tdata (abfd
)->elf_data_section
= elf_data_section
;
4152 elf_tdata (abfd
)->elf_data_symbol
= elf_data_symbol
;
4154 elf_data_section
->symbol
= elf_data_symbol
;
4155 elf_data_section
->symbol_ptr_ptr
= &elf_tdata (abfd
)->elf_data_symbol
;
4157 elf_data_section
->name
= ".data";
4158 elf_data_section
->flags
= SEC_NO_FLAGS
;
4159 elf_data_section
->output_section
= NULL
;
4160 elf_data_section
->owner
= abfd
;
4161 elf_data_symbol
->name
= ".data";
4162 elf_data_symbol
->flags
= BSF_SECTION_SYM
| BSF_DYNAMIC
;
4163 elf_data_symbol
->section
= elf_data_section
;
4165 /* This code used to do *secp = bfd_und_section_ptr if
4166 info->shared. I don't know why, and that doesn't make sense,
4167 so I took it out. */
4168 *secp
= elf_tdata (abfd
)->elf_data_section
;
4171 case SHN_MIPS_SUNDEFINED
:
4172 *secp
= bfd_und_section_ptr
;
4176 if (SGI_COMPAT (abfd
)
4178 && info
->hash
->creator
== abfd
->xvec
4179 && strcmp (*namep
, "__rld_obj_head") == 0)
4181 struct elf_link_hash_entry
*h
;
4183 /* Mark __rld_obj_head as dynamic. */
4185 if (! (_bfd_generic_link_add_one_symbol
4186 (info
, abfd
, *namep
, BSF_GLOBAL
, *secp
,
4187 (bfd_vma
) *valp
, (const char *) NULL
, false,
4188 get_elf_backend_data (abfd
)->collect
,
4189 (struct bfd_link_hash_entry
**) &h
)))
4191 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4192 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4193 h
->type
= STT_OBJECT
;
4195 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
4198 mips_elf_hash_table (info
)->use_rld_obj_head
= true;
4201 /* If this is a mips16 text symbol, add 1 to the value to make it
4202 odd. This will cause something like .word SYM to come up with
4203 the right value when it is loaded into the PC. */
4204 if (sym
->st_other
== STO_MIPS16
)
4210 /* Structure used to pass information to mips_elf_output_extsym. */
4215 struct bfd_link_info
*info
;
4216 struct ecoff_debug_info
*debug
;
4217 const struct ecoff_debug_swap
*swap
;
4221 /* This routine is used to write out ECOFF debugging external symbol
4222 information. It is called via mips_elf_link_hash_traverse. The
4223 ECOFF external symbol information must match the ELF external
4224 symbol information. Unfortunately, at this point we don't know
4225 whether a symbol is required by reloc information, so the two
4226 tables may wind up being different. We must sort out the external
4227 symbol information before we can set the final size of the .mdebug
4228 section, and we must set the size of the .mdebug section before we
4229 can relocate any sections, and we can't know which symbols are
4230 required by relocation until we relocate the sections.
4231 Fortunately, it is relatively unlikely that any symbol will be
4232 stripped but required by a reloc. In particular, it can not happen
4233 when generating a final executable. */
4236 mips_elf_output_extsym (h
, data
)
4237 struct mips_elf_link_hash_entry
*h
;
4240 struct extsym_info
*einfo
= (struct extsym_info
*) data
;
4242 asection
*sec
, *output_section
;
4244 if (h
->root
.indx
== -2)
4246 else if (((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4247 || (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0)
4248 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0
4249 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
) == 0)
4251 else if (einfo
->info
->strip
== strip_all
4252 || (einfo
->info
->strip
== strip_some
4253 && bfd_hash_lookup (einfo
->info
->keep_hash
,
4254 h
->root
.root
.root
.string
,
4255 false, false) == NULL
))
4263 if (h
->esym
.ifd
== -2)
4266 h
->esym
.cobol_main
= 0;
4267 h
->esym
.weakext
= 0;
4268 h
->esym
.reserved
= 0;
4269 h
->esym
.ifd
= ifdNil
;
4270 h
->esym
.asym
.value
= 0;
4271 h
->esym
.asym
.st
= stGlobal
;
4273 if (h
->root
.root
.type
== bfd_link_hash_undefined
4274 || h
->root
.root
.type
== bfd_link_hash_undefweak
)
4278 /* Use undefined class. Also, set class and type for some
4280 name
= h
->root
.root
.root
.string
;
4281 if (strcmp (name
, mips_elf_dynsym_rtproc_names
[0]) == 0
4282 || strcmp (name
, mips_elf_dynsym_rtproc_names
[1]) == 0)
4284 h
->esym
.asym
.sc
= scData
;
4285 h
->esym
.asym
.st
= stLabel
;
4286 h
->esym
.asym
.value
= 0;
4288 else if (strcmp (name
, mips_elf_dynsym_rtproc_names
[2]) == 0)
4290 h
->esym
.asym
.sc
= scAbs
;
4291 h
->esym
.asym
.st
= stLabel
;
4292 h
->esym
.asym
.value
=
4293 mips_elf_hash_table (einfo
->info
)->procedure_count
;
4295 else if (strcmp (name
, "_gp_disp") == 0)
4297 h
->esym
.asym
.sc
= scAbs
;
4298 h
->esym
.asym
.st
= stLabel
;
4299 h
->esym
.asym
.value
= elf_gp (einfo
->abfd
);
4302 h
->esym
.asym
.sc
= scUndefined
;
4304 else if (h
->root
.root
.type
!= bfd_link_hash_defined
4305 && h
->root
.root
.type
!= bfd_link_hash_defweak
)
4306 h
->esym
.asym
.sc
= scAbs
;
4311 sec
= h
->root
.root
.u
.def
.section
;
4312 output_section
= sec
->output_section
;
4314 /* When making a shared library and symbol h is the one from
4315 the another shared library, OUTPUT_SECTION may be null. */
4316 if (output_section
== NULL
)
4317 h
->esym
.asym
.sc
= scUndefined
;
4320 name
= bfd_section_name (output_section
->owner
, output_section
);
4322 if (strcmp (name
, ".text") == 0)
4323 h
->esym
.asym
.sc
= scText
;
4324 else if (strcmp (name
, ".data") == 0)
4325 h
->esym
.asym
.sc
= scData
;
4326 else if (strcmp (name
, ".sdata") == 0)
4327 h
->esym
.asym
.sc
= scSData
;
4328 else if (strcmp (name
, ".rodata") == 0
4329 || strcmp (name
, ".rdata") == 0)
4330 h
->esym
.asym
.sc
= scRData
;
4331 else if (strcmp (name
, ".bss") == 0)
4332 h
->esym
.asym
.sc
= scBss
;
4333 else if (strcmp (name
, ".sbss") == 0)
4334 h
->esym
.asym
.sc
= scSBss
;
4335 else if (strcmp (name
, ".init") == 0)
4336 h
->esym
.asym
.sc
= scInit
;
4337 else if (strcmp (name
, ".fini") == 0)
4338 h
->esym
.asym
.sc
= scFini
;
4340 h
->esym
.asym
.sc
= scAbs
;
4344 h
->esym
.asym
.reserved
= 0;
4345 h
->esym
.asym
.index
= indexNil
;
4348 if (h
->root
.root
.type
== bfd_link_hash_common
)
4349 h
->esym
.asym
.value
= h
->root
.root
.u
.c
.size
;
4350 else if (h
->root
.root
.type
== bfd_link_hash_defined
4351 || h
->root
.root
.type
== bfd_link_hash_defweak
)
4353 if (h
->esym
.asym
.sc
== scCommon
)
4354 h
->esym
.asym
.sc
= scBss
;
4355 else if (h
->esym
.asym
.sc
== scSCommon
)
4356 h
->esym
.asym
.sc
= scSBss
;
4358 sec
= h
->root
.root
.u
.def
.section
;
4359 output_section
= sec
->output_section
;
4360 if (output_section
!= NULL
)
4361 h
->esym
.asym
.value
= (h
->root
.root
.u
.def
.value
4362 + sec
->output_offset
4363 + output_section
->vma
);
4365 h
->esym
.asym
.value
= 0;
4367 else if ((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4369 struct mips_elf_link_hash_entry
*hd
= h
;
4370 boolean no_fn_stub
= h
->no_fn_stub
;
4372 while (hd
->root
.root
.type
== bfd_link_hash_indirect
)
4374 hd
= (struct mips_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
4375 no_fn_stub
= no_fn_stub
|| hd
->no_fn_stub
;
4380 /* Set type and value for a symbol with a function stub. */
4381 h
->esym
.asym
.st
= stProc
;
4382 sec
= hd
->root
.root
.u
.def
.section
;
4384 h
->esym
.asym
.value
= 0;
4387 output_section
= sec
->output_section
;
4388 if (output_section
!= NULL
)
4389 h
->esym
.asym
.value
= (hd
->root
.plt
.offset
4390 + sec
->output_offset
4391 + output_section
->vma
);
4393 h
->esym
.asym
.value
= 0;
4401 if (! bfd_ecoff_debug_one_external (einfo
->abfd
, einfo
->debug
, einfo
->swap
,
4402 h
->root
.root
.root
.string
,
4405 einfo
->failed
= true;
4412 /* Create a runtime procedure table from the .mdebug section. */
4415 mips_elf_create_procedure_table (handle
, abfd
, info
, s
, debug
)
4418 struct bfd_link_info
*info
;
4420 struct ecoff_debug_info
*debug
;
4422 const struct ecoff_debug_swap
*swap
;
4423 HDRR
*hdr
= &debug
->symbolic_header
;
4425 struct rpdr_ext
*erp
;
4427 struct pdr_ext
*epdr
;
4428 struct sym_ext
*esym
;
4431 unsigned long size
, count
;
4432 unsigned long sindex
;
4436 const char *no_name_func
= _("static procedure (no name)");
4444 swap
= get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
4446 sindex
= strlen (no_name_func
) + 1;
4447 count
= hdr
->ipdMax
;
4450 size
= swap
->external_pdr_size
;
4452 epdr
= (struct pdr_ext
*) bfd_malloc (size
* count
);
4456 if (! _bfd_ecoff_get_accumulated_pdr (handle
, (PTR
) epdr
))
4459 size
= sizeof (RPDR
);
4460 rp
= rpdr
= (RPDR
*) bfd_malloc (size
* count
);
4464 sv
= (char **) bfd_malloc (sizeof (char *) * count
);
4468 count
= hdr
->isymMax
;
4469 size
= swap
->external_sym_size
;
4470 esym
= (struct sym_ext
*) bfd_malloc (size
* count
);
4474 if (! _bfd_ecoff_get_accumulated_sym (handle
, (PTR
) esym
))
4477 count
= hdr
->issMax
;
4478 ss
= (char *) bfd_malloc (count
);
4481 if (! _bfd_ecoff_get_accumulated_ss (handle
, (PTR
) ss
))
4484 count
= hdr
->ipdMax
;
4485 for (i
= 0; i
< count
; i
++, rp
++)
4487 (*swap
->swap_pdr_in
) (abfd
, (PTR
) (epdr
+ i
), &pdr
);
4488 (*swap
->swap_sym_in
) (abfd
, (PTR
) &esym
[pdr
.isym
], &sym
);
4489 rp
->adr
= sym
.value
;
4490 rp
->regmask
= pdr
.regmask
;
4491 rp
->regoffset
= pdr
.regoffset
;
4492 rp
->fregmask
= pdr
.fregmask
;
4493 rp
->fregoffset
= pdr
.fregoffset
;
4494 rp
->frameoffset
= pdr
.frameoffset
;
4495 rp
->framereg
= pdr
.framereg
;
4496 rp
->pcreg
= pdr
.pcreg
;
4498 sv
[i
] = ss
+ sym
.iss
;
4499 sindex
+= strlen (sv
[i
]) + 1;
4503 size
= sizeof (struct rpdr_ext
) * (count
+ 2) + sindex
;
4504 size
= BFD_ALIGN (size
, 16);
4505 rtproc
= (PTR
) bfd_alloc (abfd
, size
);
4508 mips_elf_hash_table (info
)->procedure_count
= 0;
4512 mips_elf_hash_table (info
)->procedure_count
= count
+ 2;
4514 erp
= (struct rpdr_ext
*) rtproc
;
4515 memset (erp
, 0, sizeof (struct rpdr_ext
));
4517 str
= (char *) rtproc
+ sizeof (struct rpdr_ext
) * (count
+ 2);
4518 strcpy (str
, no_name_func
);
4519 str
+= strlen (no_name_func
) + 1;
4520 for (i
= 0; i
< count
; i
++)
4522 ecoff_swap_rpdr_out (abfd
, rpdr
+ i
, erp
+ i
);
4523 strcpy (str
, sv
[i
]);
4524 str
+= strlen (sv
[i
]) + 1;
4526 ecoff_put_off (abfd
, (bfd_vma
) -1, (bfd_byte
*) (erp
+ count
)->p_adr
);
4528 /* Set the size and contents of .rtproc section. */
4529 s
->_raw_size
= size
;
4530 s
->contents
= (bfd_byte
*) rtproc
;
4532 /* Skip this section later on (I don't think this currently
4533 matters, but someday it might). */
4534 s
->link_order_head
= (struct bfd_link_order
*) NULL
;
4563 /* A comparison routine used to sort .gptab entries. */
4566 gptab_compare (p1
, p2
)
4570 const Elf32_gptab
*a1
= (const Elf32_gptab
*) p1
;
4571 const Elf32_gptab
*a2
= (const Elf32_gptab
*) p2
;
4573 return a1
->gt_entry
.gt_g_value
- a2
->gt_entry
.gt_g_value
;
4576 /* We need to use a special link routine to handle the .reginfo and
4577 the .mdebug sections. We need to merge all instances of these
4578 sections together, not write them all out sequentially. */
4581 _bfd_mips_elf_final_link (abfd
, info
)
4583 struct bfd_link_info
*info
;
4587 struct bfd_link_order
*p
;
4588 asection
*reginfo_sec
, *mdebug_sec
, *gptab_data_sec
, *gptab_bss_sec
;
4589 asection
*rtproc_sec
;
4590 Elf32_RegInfo reginfo
;
4591 struct ecoff_debug_info debug
;
4592 const struct ecoff_debug_swap
*swap
4593 = get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
4594 HDRR
*symhdr
= &debug
.symbolic_header
;
4595 PTR mdebug_handle
= NULL
;
4600 static const char * const name
[] =
4602 ".text", ".init", ".fini", ".data",
4603 ".rodata", ".sdata", ".sbss", ".bss"
4605 static const int sc
[] =
4607 scText
, scInit
, scFini
, scData
,
4608 scRData
, scSData
, scSBss
, scBss
4611 /* If all the things we linked together were PIC, but we're
4612 producing an executable (rather than a shared object), then the
4613 resulting file is CPIC (i.e., it calls PIC code.) */
4615 && !info
->relocateable
4616 && elf_elfheader (abfd
)->e_flags
& EF_MIPS_PIC
)
4618 elf_elfheader (abfd
)->e_flags
&= ~EF_MIPS_PIC
;
4619 elf_elfheader (abfd
)->e_flags
|= EF_MIPS_CPIC
;
4622 /* We'd carefully arranged the dynamic symbol indices, and then the
4623 generic size_dynamic_sections renumbered them out from under us.
4624 Rather than trying somehow to prevent the renumbering, just do
4626 if (elf_hash_table (info
)->dynamic_sections_created
)
4630 struct mips_got_info
*g
;
4632 /* When we resort, we must tell mips_elf_sort_hash_table what
4633 the lowest index it may use is. That's the number of section
4634 symbols we're going to add. The generic ELF linker only
4635 adds these symbols when building a shared object. Note that
4636 we count the sections after (possibly) removing the .options
4638 if (!mips_elf_sort_hash_table (info
, (info
->shared
4639 ? bfd_count_sections (abfd
) + 1
4643 /* Make sure we didn't grow the global .got region. */
4644 dynobj
= elf_hash_table (info
)->dynobj
;
4645 got
= bfd_get_section_by_name (dynobj
, ".got");
4646 g
= (struct mips_got_info
*) elf_section_data (got
)->tdata
;
4648 if (g
->global_gotsym
!= NULL
)
4649 BFD_ASSERT ((elf_hash_table (info
)->dynsymcount
4650 - g
->global_gotsym
->dynindx
)
4651 <= g
->global_gotno
);
4654 /* On IRIX5, we omit the .options section. On IRIX6, however, we
4655 include it, even though we don't process it quite right. (Some
4656 entries are supposed to be merged.) Empirically, we seem to be
4657 better off including it then not. */
4658 if (IRIX_COMPAT (abfd
) == ict_irix5
|| IRIX_COMPAT (abfd
) == ict_none
)
4659 for (secpp
= &abfd
->sections
; *secpp
!= NULL
; secpp
= &(*secpp
)->next
)
4661 if (strcmp ((*secpp
)->name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
4663 for (p
= (*secpp
)->link_order_head
; p
!= NULL
; p
= p
->next
)
4664 if (p
->type
== bfd_indirect_link_order
)
4665 p
->u
.indirect
.section
->flags
&= ~SEC_HAS_CONTENTS
;
4666 (*secpp
)->link_order_head
= NULL
;
4667 *secpp
= (*secpp
)->next
;
4668 --abfd
->section_count
;
4674 /* Get a value for the GP register. */
4675 if (elf_gp (abfd
) == 0)
4677 struct bfd_link_hash_entry
*h
;
4679 h
= bfd_link_hash_lookup (info
->hash
, "_gp", false, false, true);
4680 if (h
!= (struct bfd_link_hash_entry
*) NULL
4681 && h
->type
== bfd_link_hash_defined
)
4682 elf_gp (abfd
) = (h
->u
.def
.value
4683 + h
->u
.def
.section
->output_section
->vma
4684 + h
->u
.def
.section
->output_offset
);
4685 else if (info
->relocateable
)
4689 /* Find the GP-relative section with the lowest offset. */
4691 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
4693 && (elf_section_data (o
)->this_hdr
.sh_flags
& SHF_MIPS_GPREL
))
4696 /* And calculate GP relative to that. */
4697 elf_gp (abfd
) = lo
+ ELF_MIPS_GP_OFFSET (abfd
);
4701 /* If the relocate_section function needs to do a reloc
4702 involving the GP value, it should make a reloc_dangerous
4703 callback to warn that GP is not defined. */
4707 /* Go through the sections and collect the .reginfo and .mdebug
4711 gptab_data_sec
= NULL
;
4712 gptab_bss_sec
= NULL
;
4713 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
4715 if (strcmp (o
->name
, ".reginfo") == 0)
4717 memset (®info
, 0, sizeof reginfo
);
4719 /* We have found the .reginfo section in the output file.
4720 Look through all the link_orders comprising it and merge
4721 the information together. */
4722 for (p
= o
->link_order_head
;
4723 p
!= (struct bfd_link_order
*) NULL
;
4726 asection
*input_section
;
4728 Elf32_External_RegInfo ext
;
4731 if (p
->type
!= bfd_indirect_link_order
)
4733 if (p
->type
== bfd_fill_link_order
)
4738 input_section
= p
->u
.indirect
.section
;
4739 input_bfd
= input_section
->owner
;
4741 /* The linker emulation code has probably clobbered the
4742 size to be zero bytes. */
4743 if (input_section
->_raw_size
== 0)
4744 input_section
->_raw_size
= sizeof (Elf32_External_RegInfo
);
4746 if (! bfd_get_section_contents (input_bfd
, input_section
,
4752 bfd_mips_elf32_swap_reginfo_in (input_bfd
, &ext
, &sub
);
4754 reginfo
.ri_gprmask
|= sub
.ri_gprmask
;
4755 reginfo
.ri_cprmask
[0] |= sub
.ri_cprmask
[0];
4756 reginfo
.ri_cprmask
[1] |= sub
.ri_cprmask
[1];
4757 reginfo
.ri_cprmask
[2] |= sub
.ri_cprmask
[2];
4758 reginfo
.ri_cprmask
[3] |= sub
.ri_cprmask
[3];
4760 /* ri_gp_value is set by the function
4761 mips_elf32_section_processing when the section is
4762 finally written out. */
4764 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4765 elf_link_input_bfd ignores this section. */
4766 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
4769 /* Size has been set in mips_elf_always_size_sections */
4770 BFD_ASSERT(o
->_raw_size
== sizeof (Elf32_External_RegInfo
));
4772 /* Skip this section later on (I don't think this currently
4773 matters, but someday it might). */
4774 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4779 if (strcmp (o
->name
, ".mdebug") == 0)
4781 struct extsym_info einfo
;
4783 /* We have found the .mdebug section in the output file.
4784 Look through all the link_orders comprising it and merge
4785 the information together. */
4786 symhdr
->magic
= swap
->sym_magic
;
4787 /* FIXME: What should the version stamp be? */
4789 symhdr
->ilineMax
= 0;
4793 symhdr
->isymMax
= 0;
4794 symhdr
->ioptMax
= 0;
4795 symhdr
->iauxMax
= 0;
4797 symhdr
->issExtMax
= 0;
4800 symhdr
->iextMax
= 0;
4802 /* We accumulate the debugging information itself in the
4803 debug_info structure. */
4805 debug
.external_dnr
= NULL
;
4806 debug
.external_pdr
= NULL
;
4807 debug
.external_sym
= NULL
;
4808 debug
.external_opt
= NULL
;
4809 debug
.external_aux
= NULL
;
4811 debug
.ssext
= debug
.ssext_end
= NULL
;
4812 debug
.external_fdr
= NULL
;
4813 debug
.external_rfd
= NULL
;
4814 debug
.external_ext
= debug
.external_ext_end
= NULL
;
4816 mdebug_handle
= bfd_ecoff_debug_init (abfd
, &debug
, swap
, info
);
4817 if (mdebug_handle
== (PTR
) NULL
)
4821 esym
.cobol_main
= 0;
4825 esym
.asym
.iss
= issNil
;
4826 esym
.asym
.st
= stLocal
;
4827 esym
.asym
.reserved
= 0;
4828 esym
.asym
.index
= indexNil
;
4830 for (i
= 0; i
< 8; i
++)
4832 esym
.asym
.sc
= sc
[i
];
4833 s
= bfd_get_section_by_name (abfd
, name
[i
]);
4836 esym
.asym
.value
= s
->vma
;
4837 last
= s
->vma
+ s
->_raw_size
;
4840 esym
.asym
.value
= last
;
4841 if (!bfd_ecoff_debug_one_external (abfd
, &debug
, swap
,
4846 for (p
= o
->link_order_head
;
4847 p
!= (struct bfd_link_order
*) NULL
;
4850 asection
*input_section
;
4852 const struct ecoff_debug_swap
*input_swap
;
4853 struct ecoff_debug_info input_debug
;
4857 if (p
->type
!= bfd_indirect_link_order
)
4859 if (p
->type
== bfd_fill_link_order
)
4864 input_section
= p
->u
.indirect
.section
;
4865 input_bfd
= input_section
->owner
;
4867 if (bfd_get_flavour (input_bfd
) != bfd_target_elf_flavour
4868 || (get_elf_backend_data (input_bfd
)
4869 ->elf_backend_ecoff_debug_swap
) == NULL
)
4871 /* I don't know what a non MIPS ELF bfd would be
4872 doing with a .mdebug section, but I don't really
4873 want to deal with it. */
4877 input_swap
= (get_elf_backend_data (input_bfd
)
4878 ->elf_backend_ecoff_debug_swap
);
4880 BFD_ASSERT (p
->size
== input_section
->_raw_size
);
4882 /* The ECOFF linking code expects that we have already
4883 read in the debugging information and set up an
4884 ecoff_debug_info structure, so we do that now. */
4885 if (! _bfd_mips_elf_read_ecoff_info (input_bfd
, input_section
,
4889 if (! (bfd_ecoff_debug_accumulate
4890 (mdebug_handle
, abfd
, &debug
, swap
, input_bfd
,
4891 &input_debug
, input_swap
, info
)))
4894 /* Loop through the external symbols. For each one with
4895 interesting information, try to find the symbol in
4896 the linker global hash table and save the information
4897 for the output external symbols. */
4898 eraw_src
= input_debug
.external_ext
;
4899 eraw_end
= (eraw_src
4900 + (input_debug
.symbolic_header
.iextMax
4901 * input_swap
->external_ext_size
));
4903 eraw_src
< eraw_end
;
4904 eraw_src
+= input_swap
->external_ext_size
)
4908 struct mips_elf_link_hash_entry
*h
;
4910 (*input_swap
->swap_ext_in
) (input_bfd
, (PTR
) eraw_src
, &ext
);
4911 if (ext
.asym
.sc
== scNil
4912 || ext
.asym
.sc
== scUndefined
4913 || ext
.asym
.sc
== scSUndefined
)
4916 name
= input_debug
.ssext
+ ext
.asym
.iss
;
4917 h
= mips_elf_link_hash_lookup (mips_elf_hash_table (info
),
4918 name
, false, false, true);
4919 if (h
== NULL
|| h
->esym
.ifd
!= -2)
4925 < input_debug
.symbolic_header
.ifdMax
);
4926 ext
.ifd
= input_debug
.ifdmap
[ext
.ifd
];
4932 /* Free up the information we just read. */
4933 free (input_debug
.line
);
4934 free (input_debug
.external_dnr
);
4935 free (input_debug
.external_pdr
);
4936 free (input_debug
.external_sym
);
4937 free (input_debug
.external_opt
);
4938 free (input_debug
.external_aux
);
4939 free (input_debug
.ss
);
4940 free (input_debug
.ssext
);
4941 free (input_debug
.external_fdr
);
4942 free (input_debug
.external_rfd
);
4943 free (input_debug
.external_ext
);
4945 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4946 elf_link_input_bfd ignores this section. */
4947 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
4950 if (SGI_COMPAT (abfd
) && info
->shared
)
4952 /* Create .rtproc section. */
4953 rtproc_sec
= bfd_get_section_by_name (abfd
, ".rtproc");
4954 if (rtproc_sec
== NULL
)
4956 flagword flags
= (SEC_HAS_CONTENTS
| SEC_IN_MEMORY
4957 | SEC_LINKER_CREATED
| SEC_READONLY
);
4959 rtproc_sec
= bfd_make_section (abfd
, ".rtproc");
4960 if (rtproc_sec
== NULL
4961 || ! bfd_set_section_flags (abfd
, rtproc_sec
, flags
)
4962 || ! bfd_set_section_alignment (abfd
, rtproc_sec
, 4))
4966 if (! mips_elf_create_procedure_table (mdebug_handle
, abfd
,
4967 info
, rtproc_sec
, &debug
))
4971 /* Build the external symbol information. */
4974 einfo
.debug
= &debug
;
4976 einfo
.failed
= false;
4977 mips_elf_link_hash_traverse (mips_elf_hash_table (info
),
4978 mips_elf_output_extsym
,
4983 /* Set the size of the .mdebug section. */
4984 o
->_raw_size
= bfd_ecoff_debug_size (abfd
, &debug
, swap
);
4986 /* Skip this section later on (I don't think this currently
4987 matters, but someday it might). */
4988 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4993 if (strncmp (o
->name
, ".gptab.", sizeof ".gptab." - 1) == 0)
4995 const char *subname
;
4998 Elf32_External_gptab
*ext_tab
;
5001 /* The .gptab.sdata and .gptab.sbss sections hold
5002 information describing how the small data area would
5003 change depending upon the -G switch. These sections
5004 not used in executables files. */
5005 if (! info
->relocateable
)
5009 for (p
= o
->link_order_head
;
5010 p
!= (struct bfd_link_order
*) NULL
;
5013 asection
*input_section
;
5015 if (p
->type
!= bfd_indirect_link_order
)
5017 if (p
->type
== bfd_fill_link_order
)
5022 input_section
= p
->u
.indirect
.section
;
5024 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5025 elf_link_input_bfd ignores this section. */
5026 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
5029 /* Skip this section later on (I don't think this
5030 currently matters, but someday it might). */
5031 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
5033 /* Really remove the section. */
5034 for (secpp
= &abfd
->sections
;
5036 secpp
= &(*secpp
)->next
)
5038 *secpp
= (*secpp
)->next
;
5039 --abfd
->section_count
;
5044 /* There is one gptab for initialized data, and one for
5045 uninitialized data. */
5046 if (strcmp (o
->name
, ".gptab.sdata") == 0)
5048 else if (strcmp (o
->name
, ".gptab.sbss") == 0)
5052 (*_bfd_error_handler
)
5053 (_("%s: illegal section name `%s'"),
5054 bfd_get_filename (abfd
), o
->name
);
5055 bfd_set_error (bfd_error_nonrepresentable_section
);
5059 /* The linker script always combines .gptab.data and
5060 .gptab.sdata into .gptab.sdata, and likewise for
5061 .gptab.bss and .gptab.sbss. It is possible that there is
5062 no .sdata or .sbss section in the output file, in which
5063 case we must change the name of the output section. */
5064 subname
= o
->name
+ sizeof ".gptab" - 1;
5065 if (bfd_get_section_by_name (abfd
, subname
) == NULL
)
5067 if (o
== gptab_data_sec
)
5068 o
->name
= ".gptab.data";
5070 o
->name
= ".gptab.bss";
5071 subname
= o
->name
+ sizeof ".gptab" - 1;
5072 BFD_ASSERT (bfd_get_section_by_name (abfd
, subname
) != NULL
);
5075 /* Set up the first entry. */
5077 tab
= (Elf32_gptab
*) bfd_malloc (c
* sizeof (Elf32_gptab
));
5080 tab
[0].gt_header
.gt_current_g_value
= elf_gp_size (abfd
);
5081 tab
[0].gt_header
.gt_unused
= 0;
5083 /* Combine the input sections. */
5084 for (p
= o
->link_order_head
;
5085 p
!= (struct bfd_link_order
*) NULL
;
5088 asection
*input_section
;
5092 bfd_size_type gpentry
;
5094 if (p
->type
!= bfd_indirect_link_order
)
5096 if (p
->type
== bfd_fill_link_order
)
5101 input_section
= p
->u
.indirect
.section
;
5102 input_bfd
= input_section
->owner
;
5104 /* Combine the gptab entries for this input section one
5105 by one. We know that the input gptab entries are
5106 sorted by ascending -G value. */
5107 size
= bfd_section_size (input_bfd
, input_section
);
5109 for (gpentry
= sizeof (Elf32_External_gptab
);
5111 gpentry
+= sizeof (Elf32_External_gptab
))
5113 Elf32_External_gptab ext_gptab
;
5114 Elf32_gptab int_gptab
;
5120 if (! (bfd_get_section_contents
5121 (input_bfd
, input_section
, (PTR
) &ext_gptab
,
5122 gpentry
, sizeof (Elf32_External_gptab
))))
5128 bfd_mips_elf32_swap_gptab_in (input_bfd
, &ext_gptab
,
5130 val
= int_gptab
.gt_entry
.gt_g_value
;
5131 add
= int_gptab
.gt_entry
.gt_bytes
- last
;
5134 for (look
= 1; look
< c
; look
++)
5136 if (tab
[look
].gt_entry
.gt_g_value
>= val
)
5137 tab
[look
].gt_entry
.gt_bytes
+= add
;
5139 if (tab
[look
].gt_entry
.gt_g_value
== val
)
5145 Elf32_gptab
*new_tab
;
5148 /* We need a new table entry. */
5149 new_tab
= ((Elf32_gptab
*)
5150 bfd_realloc ((PTR
) tab
,
5151 (c
+ 1) * sizeof (Elf32_gptab
)));
5152 if (new_tab
== NULL
)
5158 tab
[c
].gt_entry
.gt_g_value
= val
;
5159 tab
[c
].gt_entry
.gt_bytes
= add
;
5161 /* Merge in the size for the next smallest -G
5162 value, since that will be implied by this new
5165 for (look
= 1; look
< c
; look
++)
5167 if (tab
[look
].gt_entry
.gt_g_value
< val
5169 || (tab
[look
].gt_entry
.gt_g_value
5170 > tab
[max
].gt_entry
.gt_g_value
)))
5174 tab
[c
].gt_entry
.gt_bytes
+=
5175 tab
[max
].gt_entry
.gt_bytes
;
5180 last
= int_gptab
.gt_entry
.gt_bytes
;
5183 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5184 elf_link_input_bfd ignores this section. */
5185 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
5188 /* The table must be sorted by -G value. */
5190 qsort (tab
+ 1, c
- 1, sizeof (tab
[0]), gptab_compare
);
5192 /* Swap out the table. */
5193 ext_tab
= ((Elf32_External_gptab
*)
5194 bfd_alloc (abfd
, c
* sizeof (Elf32_External_gptab
)));
5195 if (ext_tab
== NULL
)
5201 for (i
= 0; i
< c
; i
++)
5202 bfd_mips_elf32_swap_gptab_out (abfd
, tab
+ i
, ext_tab
+ i
);
5205 o
->_raw_size
= c
* sizeof (Elf32_External_gptab
);
5206 o
->contents
= (bfd_byte
*) ext_tab
;
5208 /* Skip this section later on (I don't think this currently
5209 matters, but someday it might). */
5210 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
5214 /* Invoke the regular ELF backend linker to do all the work. */
5215 if (ABI_64_P (abfd
))
5218 if (!bfd_elf64_bfd_final_link (abfd
, info
))
5225 else if (!bfd_elf32_bfd_final_link (abfd
, info
))
5228 /* Now write out the computed sections. */
5230 if (reginfo_sec
!= (asection
*) NULL
)
5232 Elf32_External_RegInfo ext
;
5234 bfd_mips_elf32_swap_reginfo_out (abfd
, ®info
, &ext
);
5235 if (! bfd_set_section_contents (abfd
, reginfo_sec
, (PTR
) &ext
,
5236 (file_ptr
) 0, sizeof ext
))
5240 if (mdebug_sec
!= (asection
*) NULL
)
5242 BFD_ASSERT (abfd
->output_has_begun
);
5243 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle
, abfd
, &debug
,
5245 mdebug_sec
->filepos
))
5248 bfd_ecoff_debug_free (mdebug_handle
, abfd
, &debug
, swap
, info
);
5251 if (gptab_data_sec
!= (asection
*) NULL
)
5253 if (! bfd_set_section_contents (abfd
, gptab_data_sec
,
5254 gptab_data_sec
->contents
,
5256 gptab_data_sec
->_raw_size
))
5260 if (gptab_bss_sec
!= (asection
*) NULL
)
5262 if (! bfd_set_section_contents (abfd
, gptab_bss_sec
,
5263 gptab_bss_sec
->contents
,
5265 gptab_bss_sec
->_raw_size
))
5269 if (SGI_COMPAT (abfd
))
5271 rtproc_sec
= bfd_get_section_by_name (abfd
, ".rtproc");
5272 if (rtproc_sec
!= NULL
)
5274 if (! bfd_set_section_contents (abfd
, rtproc_sec
,
5275 rtproc_sec
->contents
,
5277 rtproc_sec
->_raw_size
))
5285 /* This function is called via qsort() to sort the dynamic relocation
5286 entries by increasing r_symndx value. */
5289 sort_dynamic_relocs (arg1
, arg2
)
5293 const Elf32_External_Rel
*ext_reloc1
= (const Elf32_External_Rel
*) arg1
;
5294 const Elf32_External_Rel
*ext_reloc2
= (const Elf32_External_Rel
*) arg2
;
5296 Elf_Internal_Rel int_reloc1
;
5297 Elf_Internal_Rel int_reloc2
;
5299 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd
, ext_reloc1
, &int_reloc1
);
5300 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd
, ext_reloc2
, &int_reloc2
);
5302 return (ELF32_R_SYM (int_reloc1
.r_info
) - ELF32_R_SYM (int_reloc2
.r_info
));
5305 /* Returns the GOT section for ABFD. */
5308 mips_elf_got_section (abfd
)
5311 return bfd_get_section_by_name (abfd
, ".got");
5314 /* Returns the GOT information associated with the link indicated by
5315 INFO. If SGOTP is non-NULL, it is filled in with the GOT
5318 static struct mips_got_info
*
5319 mips_elf_got_info (abfd
, sgotp
)
5324 struct mips_got_info
*g
;
5326 sgot
= mips_elf_got_section (abfd
);
5327 BFD_ASSERT (sgot
!= NULL
);
5328 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
5329 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
5330 BFD_ASSERT (g
!= NULL
);
5337 /* Return whether a relocation is against a local symbol. */
5340 mips_elf_local_relocation_p (input_bfd
, relocation
, local_sections
,
5343 const Elf_Internal_Rela
*relocation
;
5344 asection
**local_sections
;
5345 boolean check_forced
;
5347 unsigned long r_symndx
;
5348 Elf_Internal_Shdr
*symtab_hdr
;
5349 struct mips_elf_link_hash_entry
*h
;
5352 r_symndx
= ELF32_R_SYM (relocation
->r_info
);
5353 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
5354 extsymoff
= (elf_bad_symtab (input_bfd
)) ? 0 : symtab_hdr
->sh_info
;
5356 if (r_symndx
< extsymoff
)
5358 if (elf_bad_symtab (input_bfd
) && local_sections
[r_symndx
] != NULL
)
5363 /* Look up the hash table to check whether the symbol
5364 was forced local. */
5365 h
= (struct mips_elf_link_hash_entry
*)
5366 elf_sym_hashes (input_bfd
) [r_symndx
- extsymoff
];
5367 /* Find the real hash-table entry for this symbol. */
5368 while (h
->root
.root
.type
== bfd_link_hash_indirect
5369 || h
->root
.root
.type
== bfd_link_hash_warning
)
5370 h
= (struct mips_elf_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
5371 if ((h
->root
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0)
5378 /* Sign-extend VALUE, which has the indicated number of BITS. */
5381 mips_elf_sign_extend (value
, bits
)
5385 if (value
& ((bfd_vma
) 1 << (bits
- 1)))
5386 /* VALUE is negative. */
5387 value
|= ((bfd_vma
) - 1) << bits
;
5392 /* Return non-zero if the indicated VALUE has overflowed the maximum
5393 range expressable by a signed number with the indicated number of
5397 mips_elf_overflow_p (value
, bits
)
5401 bfd_signed_vma svalue
= (bfd_signed_vma
) value
;
5403 if (svalue
> (1 << (bits
- 1)) - 1)
5404 /* The value is too big. */
5406 else if (svalue
< -(1 << (bits
- 1)))
5407 /* The value is too small. */
5414 /* Calculate the %high function. */
5417 mips_elf_high (value
)
5420 return ((value
+ (bfd_vma
) 0x8000) >> 16) & 0xffff;
5423 /* Calculate the %higher function. */
5426 mips_elf_higher (value
)
5427 bfd_vma value ATTRIBUTE_UNUSED
;
5430 return ((value
+ (bfd_vma
) 0x80008000) >> 32) & 0xffff;
5433 return (bfd_vma
) -1;
5437 /* Calculate the %highest function. */
5440 mips_elf_highest (value
)
5441 bfd_vma value ATTRIBUTE_UNUSED
;
5444 return ((value
+ (bfd_vma
) 0x800080008000) >> 48) & 0xffff;
5447 return (bfd_vma
) -1;
5451 /* Returns the GOT index for the global symbol indicated by H. */
5454 mips_elf_global_got_index (abfd
, h
)
5456 struct elf_link_hash_entry
*h
;
5460 struct mips_got_info
*g
;
5462 g
= mips_elf_got_info (abfd
, &sgot
);
5464 /* Once we determine the global GOT entry with the lowest dynamic
5465 symbol table index, we must put all dynamic symbols with greater
5466 indices into the GOT. That makes it easy to calculate the GOT
5468 BFD_ASSERT (h
->dynindx
>= g
->global_gotsym
->dynindx
);
5469 index
= ((h
->dynindx
- g
->global_gotsym
->dynindx
+ g
->local_gotno
)
5470 * MIPS_ELF_GOT_SIZE (abfd
));
5471 BFD_ASSERT (index
< sgot
->_raw_size
);
5476 /* Returns the offset for the entry at the INDEXth position
5480 mips_elf_got_offset_from_index (dynobj
, output_bfd
, index
)
5488 sgot
= mips_elf_got_section (dynobj
);
5489 gp
= _bfd_get_gp_value (output_bfd
);
5490 return (sgot
->output_section
->vma
+ sgot
->output_offset
+ index
-
5494 /* If H is a symbol that needs a global GOT entry, but has a dynamic
5495 symbol table index lower than any we've seen to date, record it for
5499 mips_elf_record_global_got_symbol (h
, info
, g
)
5500 struct elf_link_hash_entry
*h
;
5501 struct bfd_link_info
*info
;
5502 struct mips_got_info
*g ATTRIBUTE_UNUSED
;
5504 /* A global symbol in the GOT must also be in the dynamic symbol
5506 if (h
->dynindx
== -1
5507 && !bfd_elf32_link_record_dynamic_symbol (info
, h
))
5510 /* If we've already marked this entry as need GOT space, we don't
5511 need to do it again. */
5512 if (h
->got
.offset
!= (bfd_vma
) - 1)
5515 /* By setting this to a value other than -1, we are indicating that
5516 there needs to be a GOT entry for H. */
5522 /* This structure is passed to mips_elf_sort_hash_table_f when sorting
5523 the dynamic symbols. */
5525 struct mips_elf_hash_sort_data
5527 /* The symbol in the global GOT with the lowest dynamic symbol table
5529 struct elf_link_hash_entry
*low
;
5530 /* The least dynamic symbol table index corresponding to a symbol
5531 with a GOT entry. */
5532 long min_got_dynindx
;
5533 /* The greatest dynamic symbol table index not corresponding to a
5534 symbol without a GOT entry. */
5535 long max_non_got_dynindx
;
5538 /* If H needs a GOT entry, assign it the highest available dynamic
5539 index. Otherwise, assign it the lowest available dynamic
5543 mips_elf_sort_hash_table_f (h
, data
)
5544 struct mips_elf_link_hash_entry
*h
;
5547 struct mips_elf_hash_sort_data
*hsd
5548 = (struct mips_elf_hash_sort_data
*) data
;
5550 /* Symbols without dynamic symbol table entries aren't interesting
5552 if (h
->root
.dynindx
== -1)
5555 if (h
->root
.got
.offset
!= 0)
5556 h
->root
.dynindx
= hsd
->max_non_got_dynindx
++;
5559 h
->root
.dynindx
= --hsd
->min_got_dynindx
;
5560 hsd
->low
= (struct elf_link_hash_entry
*) h
;
5566 /* Sort the dynamic symbol table so that symbols that need GOT entries
5567 appear towards the end. This reduces the amount of GOT space
5568 required. MAX_LOCAL is used to set the number of local symbols
5569 known to be in the dynamic symbol table. During
5570 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
5571 section symbols are added and the count is higher. */
5574 mips_elf_sort_hash_table (info
, max_local
)
5575 struct bfd_link_info
*info
;
5576 unsigned long max_local
;
5578 struct mips_elf_hash_sort_data hsd
;
5579 struct mips_got_info
*g
;
5582 dynobj
= elf_hash_table (info
)->dynobj
;
5585 hsd
.min_got_dynindx
= elf_hash_table (info
)->dynsymcount
;
5586 hsd
.max_non_got_dynindx
= max_local
;
5587 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table
*)
5588 elf_hash_table (info
)),
5589 mips_elf_sort_hash_table_f
,
5592 /* There shoud have been enough room in the symbol table to
5593 accomodate both the GOT and non-GOT symbols. */
5594 BFD_ASSERT (hsd
.max_non_got_dynindx
<= hsd
.min_got_dynindx
);
5596 /* Now we know which dynamic symbol has the lowest dynamic symbol
5597 table index in the GOT. */
5598 g
= mips_elf_got_info (dynobj
, NULL
);
5599 g
->global_gotsym
= hsd
.low
;
5604 /* Create a local GOT entry for VALUE. Return the index of the entry,
5605 or -1 if it could not be created. */
5608 mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
)
5610 struct mips_got_info
*g
;
5614 if (g
->assigned_gotno
>= g
->local_gotno
)
5616 /* We didn't allocate enough space in the GOT. */
5617 (*_bfd_error_handler
)
5618 (_("not enough GOT space for local GOT entries"));
5619 bfd_set_error (bfd_error_bad_value
);
5620 return (bfd_vma
) -1;
5623 MIPS_ELF_PUT_WORD (abfd
, value
,
5625 + MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
));
5626 return MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
++;
5629 /* Returns the GOT offset at which the indicated address can be found.
5630 If there is not yet a GOT entry for this value, create one. Returns
5631 -1 if no satisfactory GOT offset can be found. */
5634 mips_elf_local_got_index (abfd
, info
, value
)
5636 struct bfd_link_info
*info
;
5640 struct mips_got_info
*g
;
5643 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5645 /* Look to see if we already have an appropriate entry. */
5646 for (entry
= (sgot
->contents
5647 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5648 entry
!= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5649 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5651 bfd_vma address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5652 if (address
== value
)
5653 return entry
- sgot
->contents
;
5656 return mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5659 /* Find a GOT entry that is within 32KB of the VALUE. These entries
5660 are supposed to be placed at small offsets in the GOT, i.e.,
5661 within 32KB of GP. Return the index into the GOT for this page,
5662 and store the offset from this entry to the desired address in
5663 OFFSETP, if it is non-NULL. */
5666 mips_elf_got_page (abfd
, info
, value
, offsetp
)
5668 struct bfd_link_info
*info
;
5673 struct mips_got_info
*g
;
5675 bfd_byte
*last_entry
;
5679 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5681 /* Look to see if we aleady have an appropriate entry. */
5682 last_entry
= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5683 for (entry
= (sgot
->contents
5684 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5685 entry
!= last_entry
;
5686 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5688 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5690 if (!mips_elf_overflow_p (value
- address
, 16))
5692 /* This entry will serve as the page pointer. We can add a
5693 16-bit number to it to get the actual address. */
5694 index
= entry
- sgot
->contents
;
5699 /* If we didn't have an appropriate entry, we create one now. */
5700 if (entry
== last_entry
)
5701 index
= mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5705 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5706 *offsetp
= value
- address
;
5712 /* Find a GOT entry whose higher-order 16 bits are the same as those
5713 for value. Return the index into the GOT for this entry. */
5716 mips_elf_got16_entry (abfd
, info
, value
, external
)
5718 struct bfd_link_info
*info
;
5723 struct mips_got_info
*g
;
5725 bfd_byte
*last_entry
;
5731 /* Although the ABI says that it is "the high-order 16 bits" that we
5732 want, it is really the %high value. The complete value is
5733 calculated with a `addiu' of a LO16 relocation, just as with a
5735 value
= mips_elf_high (value
) << 16;
5738 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5740 /* Look to see if we already have an appropriate entry. */
5741 last_entry
= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5742 for (entry
= (sgot
->contents
5743 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5744 entry
!= last_entry
;
5745 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5747 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5748 if (address
== value
)
5750 /* This entry has the right high-order 16 bits, and the low-order
5751 16 bits are set to zero. */
5752 index
= entry
- sgot
->contents
;
5757 /* If we didn't have an appropriate entry, we create one now. */
5758 if (entry
== last_entry
)
5759 index
= mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5764 /* Returns the first relocation of type r_type found, beginning with
5765 RELOCATION. RELEND is one-past-the-end of the relocation table. */
5767 static const Elf_Internal_Rela
*
5768 mips_elf_next_relocation (r_type
, relocation
, relend
)
5769 unsigned int r_type
;
5770 const Elf_Internal_Rela
*relocation
;
5771 const Elf_Internal_Rela
*relend
;
5773 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
5774 immediately following. However, for the IRIX6 ABI, the next
5775 relocation may be a composed relocation consisting of several
5776 relocations for the same address. In that case, the R_MIPS_LO16
5777 relocation may occur as one of these. We permit a similar
5778 extension in general, as that is useful for GCC. */
5779 while (relocation
< relend
)
5781 if (ELF32_R_TYPE (relocation
->r_info
) == r_type
)
5787 /* We didn't find it. */
5788 bfd_set_error (bfd_error_bad_value
);
5792 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
5793 is the original relocation, which is now being transformed into a
5794 dynamic relocation. The ADDENDP is adjusted if necessary; the
5795 caller should store the result in place of the original addend. */
5798 mips_elf_create_dynamic_relocation (output_bfd
, info
, rel
, h
, sec
,
5799 symbol
, addendp
, input_section
)
5801 struct bfd_link_info
*info
;
5802 const Elf_Internal_Rela
*rel
;
5803 struct mips_elf_link_hash_entry
*h
;
5807 asection
*input_section
;
5809 Elf_Internal_Rel outrel
;
5815 r_type
= ELF32_R_TYPE (rel
->r_info
);
5816 dynobj
= elf_hash_table (info
)->dynobj
;
5818 = bfd_get_section_by_name (dynobj
,
5819 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
));
5820 BFD_ASSERT (sreloc
!= NULL
);
5821 BFD_ASSERT (sreloc
->contents
!= NULL
);
5825 /* We begin by assuming that the offset for the dynamic relocation
5826 is the same as for the original relocation. We'll adjust this
5827 later to reflect the correct output offsets. */
5828 if (elf_section_data (input_section
)->stab_info
== NULL
)
5829 outrel
.r_offset
= rel
->r_offset
;
5832 /* Except that in a stab section things are more complex.
5833 Because we compress stab information, the offset given in the
5834 relocation may not be the one we want; we must let the stabs
5835 machinery tell us the offset. */
5837 = (_bfd_stab_section_offset
5838 (output_bfd
, &elf_hash_table (info
)->stab_info
,
5840 &elf_section_data (input_section
)->stab_info
,
5842 /* If we didn't need the relocation at all, this value will be
5844 if (outrel
.r_offset
== (bfd_vma
) -1)
5848 /* If we've decided to skip this relocation, just output an empty
5849 record. Note that R_MIPS_NONE == 0, so that this call to memset
5850 is a way of setting R_TYPE to R_MIPS_NONE. */
5852 memset (&outrel
, 0, sizeof (outrel
));
5856 bfd_vma section_offset
;
5858 /* We must now calculate the dynamic symbol table index to use
5859 in the relocation. */
5861 && (! info
->symbolic
|| (h
->root
.elf_link_hash_flags
5862 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
5864 indx
= h
->root
.dynindx
;
5865 /* h->root.dynindx may be -1 if this symbol was marked to
5872 if (sec
!= NULL
&& bfd_is_abs_section (sec
))
5874 else if (sec
== NULL
|| sec
->owner
== NULL
)
5876 bfd_set_error (bfd_error_bad_value
);
5881 indx
= elf_section_data (sec
->output_section
)->dynindx
;
5886 /* Figure out how far the target of the relocation is from
5887 the beginning of its section. */
5888 section_offset
= symbol
- sec
->output_section
->vma
;
5889 /* The relocation we're building is section-relative.
5890 Therefore, the original addend must be adjusted by the
5892 *addendp
+= section_offset
;
5893 /* Now, the relocation is just against the section. */
5894 symbol
= sec
->output_section
->vma
;
5897 /* If the relocation was previously an absolute relocation and
5898 this symbol will not be referred to by the relocation, we must
5899 adjust it by the value we give it in the dynamic symbol table.
5900 Otherwise leave the job up to the dynamic linker. */
5901 if (!indx
&& r_type
!= R_MIPS_REL32
)
5904 /* The relocation is always an REL32 relocation because we don't
5905 know where the shared library will wind up at load-time. */
5906 outrel
.r_info
= ELF32_R_INFO (indx
, R_MIPS_REL32
);
5908 /* Adjust the output offset of the relocation to reference the
5909 correct location in the output file. */
5910 outrel
.r_offset
+= (input_section
->output_section
->vma
5911 + input_section
->output_offset
);
5914 /* Put the relocation back out. We have to use the special
5915 relocation outputter in the 64-bit case since the 64-bit
5916 relocation format is non-standard. */
5917 if (ABI_64_P (output_bfd
))
5919 (*get_elf_backend_data (output_bfd
)->s
->swap_reloc_out
)
5920 (output_bfd
, &outrel
,
5922 + sreloc
->reloc_count
* sizeof (Elf64_Mips_External_Rel
)));
5925 bfd_elf32_swap_reloc_out (output_bfd
, &outrel
,
5926 (((Elf32_External_Rel
*)
5928 + sreloc
->reloc_count
));
5930 /* Record the index of the first relocation referencing H. This
5931 information is later emitted in the .msym section. */
5933 && (h
->min_dyn_reloc_index
== 0
5934 || sreloc
->reloc_count
< h
->min_dyn_reloc_index
))
5935 h
->min_dyn_reloc_index
= sreloc
->reloc_count
;
5937 /* We've now added another relocation. */
5938 ++sreloc
->reloc_count
;
5940 /* Make sure the output section is writable. The dynamic linker
5941 will be writing to it. */
5942 elf_section_data (input_section
->output_section
)->this_hdr
.sh_flags
5945 /* On IRIX5, make an entry of compact relocation info. */
5946 if (! skip
&& IRIX_COMPAT (output_bfd
) == ict_irix5
)
5948 asection
*scpt
= bfd_get_section_by_name (dynobj
, ".compact_rel");
5953 Elf32_crinfo cptrel
;
5955 mips_elf_set_cr_format (cptrel
, CRF_MIPS_LONG
);
5956 cptrel
.vaddr
= (rel
->r_offset
5957 + input_section
->output_section
->vma
5958 + input_section
->output_offset
);
5959 if (r_type
== R_MIPS_REL32
)
5960 mips_elf_set_cr_type (cptrel
, CRT_MIPS_REL32
);
5962 mips_elf_set_cr_type (cptrel
, CRT_MIPS_WORD
);
5963 mips_elf_set_cr_dist2to (cptrel
, 0);
5964 cptrel
.konst
= *addendp
;
5966 cr
= (scpt
->contents
5967 + sizeof (Elf32_External_compact_rel
));
5968 bfd_elf32_swap_crinfo_out (output_bfd
, &cptrel
,
5969 ((Elf32_External_crinfo
*) cr
5970 + scpt
->reloc_count
));
5971 ++scpt
->reloc_count
;
5978 /* Calculate the value produced by the RELOCATION (which comes from
5979 the INPUT_BFD). The ADDEND is the addend to use for this
5980 RELOCATION; RELOCATION->R_ADDEND is ignored.
5982 The result of the relocation calculation is stored in VALUEP.
5983 REQUIRE_JALXP indicates whether or not the opcode used with this
5984 relocation must be JALX.
5986 This function returns bfd_reloc_continue if the caller need take no
5987 further action regarding this relocation, bfd_reloc_notsupported if
5988 something goes dramatically wrong, bfd_reloc_overflow if an
5989 overflow occurs, and bfd_reloc_ok to indicate success. */
5991 static bfd_reloc_status_type
5992 mips_elf_calculate_relocation (abfd
,
6006 asection
*input_section
;
6007 struct bfd_link_info
*info
;
6008 const Elf_Internal_Rela
*relocation
;
6010 reloc_howto_type
*howto
;
6011 Elf_Internal_Sym
*local_syms
;
6012 asection
**local_sections
;
6015 boolean
*require_jalxp
;
6017 /* The eventual value we will return. */
6019 /* The address of the symbol against which the relocation is
6022 /* The final GP value to be used for the relocatable, executable, or
6023 shared object file being produced. */
6024 bfd_vma gp
= (bfd_vma
) - 1;
6025 /* The place (section offset or address) of the storage unit being
6028 /* The value of GP used to create the relocatable object. */
6029 bfd_vma gp0
= (bfd_vma
) - 1;
6030 /* The offset into the global offset table at which the address of
6031 the relocation entry symbol, adjusted by the addend, resides
6032 during execution. */
6033 bfd_vma g
= (bfd_vma
) - 1;
6034 /* The section in which the symbol referenced by the relocation is
6036 asection
*sec
= NULL
;
6037 struct mips_elf_link_hash_entry
*h
= NULL
;
6038 /* True if the symbol referred to by this relocation is a local
6041 /* True if the symbol referred to by this relocation is "_gp_disp". */
6042 boolean gp_disp_p
= false;
6043 Elf_Internal_Shdr
*symtab_hdr
;
6045 unsigned long r_symndx
;
6047 /* True if overflow occurred during the calculation of the
6048 relocation value. */
6049 boolean overflowed_p
;
6050 /* True if this relocation refers to a MIPS16 function. */
6051 boolean target_is_16_bit_code_p
= false;
6053 /* Parse the relocation. */
6054 r_symndx
= ELF32_R_SYM (relocation
->r_info
);
6055 r_type
= ELF32_R_TYPE (relocation
->r_info
);
6056 p
= (input_section
->output_section
->vma
6057 + input_section
->output_offset
6058 + relocation
->r_offset
);
6060 /* Assume that there will be no overflow. */
6061 overflowed_p
= false;
6063 /* Figure out whether or not the symbol is local, and get the offset
6064 used in the array of hash table entries. */
6065 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6066 local_p
= mips_elf_local_relocation_p (input_bfd
, relocation
,
6067 local_sections
, false);
6068 if (! elf_bad_symtab (input_bfd
))
6069 extsymoff
= symtab_hdr
->sh_info
;
6072 /* The symbol table does not follow the rule that local symbols
6073 must come before globals. */
6077 /* Figure out the value of the symbol. */
6080 Elf_Internal_Sym
*sym
;
6082 sym
= local_syms
+ r_symndx
;
6083 sec
= local_sections
[r_symndx
];
6085 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6086 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
6087 symbol
+= sym
->st_value
;
6089 /* MIPS16 text labels should be treated as odd. */
6090 if (sym
->st_other
== STO_MIPS16
)
6093 /* Record the name of this symbol, for our caller. */
6094 *namep
= bfd_elf_string_from_elf_section (input_bfd
,
6095 symtab_hdr
->sh_link
,
6098 *namep
= bfd_section_name (input_bfd
, sec
);
6100 target_is_16_bit_code_p
= (sym
->st_other
== STO_MIPS16
);
6104 /* For global symbols we look up the symbol in the hash-table. */
6105 h
= ((struct mips_elf_link_hash_entry
*)
6106 elf_sym_hashes (input_bfd
) [r_symndx
- extsymoff
]);
6107 /* Find the real hash-table entry for this symbol. */
6108 while (h
->root
.root
.type
== bfd_link_hash_indirect
6109 || h
->root
.root
.type
== bfd_link_hash_warning
)
6110 h
= (struct mips_elf_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
6112 /* Record the name of this symbol, for our caller. */
6113 *namep
= h
->root
.root
.root
.string
;
6115 /* See if this is the special _gp_disp symbol. Note that such a
6116 symbol must always be a global symbol. */
6117 if (strcmp (h
->root
.root
.root
.string
, "_gp_disp") == 0)
6119 /* Relocations against _gp_disp are permitted only with
6120 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6121 if (r_type
!= R_MIPS_HI16
&& r_type
!= R_MIPS_LO16
)
6122 return bfd_reloc_notsupported
;
6126 /* If this symbol is defined, calculate its address. Note that
6127 _gp_disp is a magic symbol, always implicitly defined by the
6128 linker, so it's inappropriate to check to see whether or not
6130 else if ((h
->root
.root
.type
== bfd_link_hash_defined
6131 || h
->root
.root
.type
== bfd_link_hash_defweak
)
6132 && h
->root
.root
.u
.def
.section
)
6134 sec
= h
->root
.root
.u
.def
.section
;
6135 if (sec
->output_section
)
6136 symbol
= (h
->root
.root
.u
.def
.value
6137 + sec
->output_section
->vma
6138 + sec
->output_offset
);
6140 symbol
= h
->root
.root
.u
.def
.value
;
6142 else if (h
->root
.root
.type
== bfd_link_hash_undefweak
)
6143 /* We allow relocations against undefined weak symbols, giving
6144 it the value zero, so that you can undefined weak functions
6145 and check to see if they exist by looking at their
6148 else if (info
->shared
&& !info
->symbolic
&& !info
->no_undefined
6149 && ELF_ST_VISIBILITY (h
->root
.other
) == STV_DEFAULT
)
6151 else if (strcmp (h
->root
.root
.root
.string
, "_DYNAMIC_LINK") == 0 ||
6152 strcmp (h
->root
.root
.root
.string
, "_DYNAMIC_LINKING") == 0)
6154 /* If this is a dynamic link, we should have created a
6155 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
6156 in in mips_elf_create_dynamic_sections.
6157 Otherwise, we should define the symbol with a value of 0.
6158 FIXME: It should probably get into the symbol table
6160 BFD_ASSERT (! info
->shared
);
6161 BFD_ASSERT (bfd_get_section_by_name (abfd
, ".dynamic") == NULL
);
6166 if (! ((*info
->callbacks
->undefined_symbol
)
6167 (info
, h
->root
.root
.root
.string
, input_bfd
,
6168 input_section
, relocation
->r_offset
,
6169 (!info
->shared
|| info
->no_undefined
6170 || ELF_ST_VISIBILITY (h
->root
.other
)))))
6171 return bfd_reloc_undefined
;
6175 target_is_16_bit_code_p
= (h
->root
.other
== STO_MIPS16
);
6178 /* If this is a 32-bit call to a 16-bit function with a stub, we
6179 need to redirect the call to the stub, unless we're already *in*
6181 if (r_type
!= R_MIPS16_26
&& !info
->relocateable
6182 && ((h
!= NULL
&& h
->fn_stub
!= NULL
)
6183 || (local_p
&& elf_tdata (input_bfd
)->local_stubs
!= NULL
6184 && elf_tdata (input_bfd
)->local_stubs
[r_symndx
] != NULL
))
6185 && !mips_elf_stub_section_p (input_bfd
, input_section
))
6187 /* This is a 32-bit call to a 16-bit function. We should
6188 have already noticed that we were going to need the
6191 sec
= elf_tdata (input_bfd
)->local_stubs
[r_symndx
];
6194 BFD_ASSERT (h
->need_fn_stub
);
6198 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6200 /* If this is a 16-bit call to a 32-bit function with a stub, we
6201 need to redirect the call to the stub. */
6202 else if (r_type
== R_MIPS16_26
&& !info
->relocateable
6204 && (h
->call_stub
!= NULL
|| h
->call_fp_stub
!= NULL
)
6205 && !target_is_16_bit_code_p
)
6207 /* If both call_stub and call_fp_stub are defined, we can figure
6208 out which one to use by seeing which one appears in the input
6210 if (h
->call_stub
!= NULL
&& h
->call_fp_stub
!= NULL
)
6215 for (o
= input_bfd
->sections
; o
!= NULL
; o
= o
->next
)
6217 if (strncmp (bfd_get_section_name (input_bfd
, o
),
6218 CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
6220 sec
= h
->call_fp_stub
;
6227 else if (h
->call_stub
!= NULL
)
6230 sec
= h
->call_fp_stub
;
6232 BFD_ASSERT (sec
->_raw_size
> 0);
6233 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6236 /* Calls from 16-bit code to 32-bit code and vice versa require the
6237 special jalx instruction. */
6238 *require_jalxp
= (!info
->relocateable
6239 && ((r_type
== R_MIPS16_26
) != target_is_16_bit_code_p
));
6241 local_p
= mips_elf_local_relocation_p (input_bfd
, relocation
,
6242 local_sections
, true);
6244 /* If we haven't already determined the GOT offset, or the GP value,
6245 and we're going to need it, get it now. */
6250 case R_MIPS_GOT_DISP
:
6251 case R_MIPS_GOT_HI16
:
6252 case R_MIPS_CALL_HI16
:
6253 case R_MIPS_GOT_LO16
:
6254 case R_MIPS_CALL_LO16
:
6255 /* Find the index into the GOT where this value is located. */
6258 BFD_ASSERT (addend
== 0);
6259 g
= mips_elf_global_got_index
6260 (elf_hash_table (info
)->dynobj
,
6261 (struct elf_link_hash_entry
*) h
);
6262 if (! elf_hash_table(info
)->dynamic_sections_created
6264 && (info
->symbolic
|| h
->root
.dynindx
== -1)
6265 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)))
6267 /* This is a static link or a -Bsymbolic link. The
6268 symbol is defined locally, or was forced to be local.
6269 We must initialize this entry in the GOT. */
6270 asection
*sgot
= mips_elf_got_section(elf_hash_table
6272 MIPS_ELF_PUT_WORD (elf_hash_table (info
)->dynobj
,
6273 symbol
+ addend
, sgot
->contents
+ g
);
6276 else if (r_type
== R_MIPS_GOT16
|| r_type
== R_MIPS_CALL16
)
6277 /* There's no need to create a local GOT entry here; the
6278 calculation for a local GOT16 entry does not involve G. */
6282 g
= mips_elf_local_got_index (abfd
, info
, symbol
+ addend
);
6283 if (g
== (bfd_vma
) -1)
6287 /* Convert GOT indices to actual offsets. */
6288 g
= mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6294 case R_MIPS_GPREL16
:
6295 case R_MIPS_GPREL32
:
6296 case R_MIPS_LITERAL
:
6297 gp0
= _bfd_get_gp_value (input_bfd
);
6298 gp
= _bfd_get_gp_value (abfd
);
6305 /* Figure out what kind of relocation is being performed. */
6309 return bfd_reloc_continue
;
6312 value
= symbol
+ mips_elf_sign_extend (addend
, 16);
6313 overflowed_p
= mips_elf_overflow_p (value
, 16);
6320 || (elf_hash_table (info
)->dynamic_sections_created
6322 && ((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)
6324 && (input_section
->flags
& SEC_ALLOC
) != 0)
6326 /* If we're creating a shared library, or this relocation is
6327 against a symbol in a shared library, then we can't know
6328 where the symbol will end up. So, we create a relocation
6329 record in the output, and leave the job up to the dynamic
6332 if (!mips_elf_create_dynamic_relocation (abfd
,
6344 if (r_type
!= R_MIPS_REL32
)
6345 value
= symbol
+ addend
;
6349 value
&= howto
->dst_mask
;
6354 case R_MIPS_GNU_REL_LO16
:
6355 value
= symbol
+ addend
- p
;
6356 value
&= howto
->dst_mask
;
6359 case R_MIPS_GNU_REL16_S2
:
6360 value
= symbol
+ mips_elf_sign_extend (addend
<< 2, 18) - p
;
6361 overflowed_p
= mips_elf_overflow_p (value
, 18);
6362 value
= (value
>> 2) & howto
->dst_mask
;
6365 case R_MIPS_GNU_REL_HI16
:
6366 value
= mips_elf_high (addend
+ symbol
- p
);
6367 value
&= howto
->dst_mask
;
6371 /* The calculation for R_MIPS16_26 is just the same as for an
6372 R_MIPS_26. It's only the storage of the relocated field into
6373 the output file that's different. That's handled in
6374 mips_elf_perform_relocation. So, we just fall through to the
6375 R_MIPS_26 case here. */
6378 value
= (((addend
<< 2) | ((p
+ 4) & 0xf0000000)) + symbol
) >> 2;
6380 value
= (mips_elf_sign_extend (addend
<< 2, 28) + symbol
) >> 2;
6381 value
&= howto
->dst_mask
;
6387 value
= mips_elf_high (addend
+ symbol
);
6388 value
&= howto
->dst_mask
;
6392 value
= mips_elf_high (addend
+ gp
- p
);
6393 overflowed_p
= mips_elf_overflow_p (value
, 16);
6399 value
= (symbol
+ addend
) & howto
->dst_mask
;
6402 value
= addend
+ gp
- p
+ 4;
6403 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6404 for overflow. But, on, say, Irix 5, relocations against
6405 _gp_disp are normally generated from the .cpload
6406 pseudo-op. It generates code that normally looks like
6409 lui $gp,%hi(_gp_disp)
6410 addiu $gp,$gp,%lo(_gp_disp)
6413 Here $t9 holds the address of the function being called,
6414 as required by the MIPS ELF ABI. The R_MIPS_LO16
6415 relocation can easily overflow in this situation, but the
6416 R_MIPS_HI16 relocation will handle the overflow.
6417 Therefore, we consider this a bug in the MIPS ABI, and do
6418 not check for overflow here. */
6422 case R_MIPS_LITERAL
:
6423 /* Because we don't merge literal sections, we can handle this
6424 just like R_MIPS_GPREL16. In the long run, we should merge
6425 shared literals, and then we will need to additional work
6430 case R_MIPS16_GPREL
:
6431 /* The R_MIPS16_GPREL performs the same calculation as
6432 R_MIPS_GPREL16, but stores the relocated bits in a different
6433 order. We don't need to do anything special here; the
6434 differences are handled in mips_elf_perform_relocation. */
6435 case R_MIPS_GPREL16
:
6437 value
= mips_elf_sign_extend (addend
, 16) + symbol
+ gp0
- gp
;
6439 value
= mips_elf_sign_extend (addend
, 16) + symbol
- gp
;
6440 overflowed_p
= mips_elf_overflow_p (value
, 16);
6449 /* The special case is when the symbol is forced to be local. We
6450 need the full address in the GOT since no R_MIPS_LO16 relocation
6452 forced
= ! mips_elf_local_relocation_p (input_bfd
, relocation
,
6453 local_sections
, false);
6454 value
= mips_elf_got16_entry (abfd
, info
, symbol
+ addend
, forced
);
6455 if (value
== (bfd_vma
) -1)
6458 = mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6461 overflowed_p
= mips_elf_overflow_p (value
, 16);
6467 case R_MIPS_GOT_DISP
:
6469 overflowed_p
= mips_elf_overflow_p (value
, 16);
6472 case R_MIPS_GPREL32
:
6473 value
= (addend
+ symbol
+ gp0
- gp
) & howto
->dst_mask
;
6477 value
= mips_elf_sign_extend (addend
, 16) + symbol
- p
;
6478 value
= (bfd_vma
) ((bfd_signed_vma
) value
/ 4);
6479 overflowed_p
= mips_elf_overflow_p (value
, 16);
6482 case R_MIPS_GOT_HI16
:
6483 case R_MIPS_CALL_HI16
:
6484 /* We're allowed to handle these two relocations identically.
6485 The dynamic linker is allowed to handle the CALL relocations
6486 differently by creating a lazy evaluation stub. */
6488 value
= mips_elf_high (value
);
6489 value
&= howto
->dst_mask
;
6492 case R_MIPS_GOT_LO16
:
6493 case R_MIPS_CALL_LO16
:
6494 value
= g
& howto
->dst_mask
;
6497 case R_MIPS_GOT_PAGE
:
6498 value
= mips_elf_got_page (abfd
, info
, symbol
+ addend
, NULL
);
6499 if (value
== (bfd_vma
) -1)
6501 value
= mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6504 overflowed_p
= mips_elf_overflow_p (value
, 16);
6507 case R_MIPS_GOT_OFST
:
6508 mips_elf_got_page (abfd
, info
, symbol
+ addend
, &value
);
6509 overflowed_p
= mips_elf_overflow_p (value
, 16);
6513 value
= symbol
- addend
;
6514 value
&= howto
->dst_mask
;
6518 value
= mips_elf_higher (addend
+ symbol
);
6519 value
&= howto
->dst_mask
;
6522 case R_MIPS_HIGHEST
:
6523 value
= mips_elf_highest (addend
+ symbol
);
6524 value
&= howto
->dst_mask
;
6527 case R_MIPS_SCN_DISP
:
6528 value
= symbol
+ addend
- sec
->output_offset
;
6529 value
&= howto
->dst_mask
;
6534 /* Both of these may be ignored. R_MIPS_JALR is an optimization
6535 hint; we could improve performance by honoring that hint. */
6536 return bfd_reloc_continue
;
6538 case R_MIPS_GNU_VTINHERIT
:
6539 case R_MIPS_GNU_VTENTRY
:
6540 /* We don't do anything with these at present. */
6541 return bfd_reloc_continue
;
6544 /* An unrecognized relocation type. */
6545 return bfd_reloc_notsupported
;
6548 /* Store the VALUE for our caller. */
6550 return overflowed_p
? bfd_reloc_overflow
: bfd_reloc_ok
;
6553 /* Obtain the field relocated by RELOCATION. */
6556 mips_elf_obtain_contents (howto
, relocation
, input_bfd
, contents
)
6557 reloc_howto_type
*howto
;
6558 const Elf_Internal_Rela
*relocation
;
6563 bfd_byte
*location
= contents
+ relocation
->r_offset
;
6565 /* Obtain the bytes. */
6566 x
= bfd_get (8 * bfd_get_reloc_size (howto
), input_bfd
, location
);
6568 if ((ELF32_R_TYPE (relocation
->r_info
) == R_MIPS16_26
6569 || ELF32_R_TYPE (relocation
->r_info
) == R_MIPS16_GPREL
)
6570 && bfd_little_endian (input_bfd
))
6571 /* The two 16-bit words will be reversed on a little-endian
6572 system. See mips_elf_perform_relocation for more details. */
6573 x
= (((x
& 0xffff) << 16) | ((x
& 0xffff0000) >> 16));
6578 /* It has been determined that the result of the RELOCATION is the
6579 VALUE. Use HOWTO to place VALUE into the output file at the
6580 appropriate position. The SECTION is the section to which the
6581 relocation applies. If REQUIRE_JALX is true, then the opcode used
6582 for the relocation must be either JAL or JALX, and it is
6583 unconditionally converted to JALX.
6585 Returns false if anything goes wrong. */
6588 mips_elf_perform_relocation (info
, howto
, relocation
, value
,
6589 input_bfd
, input_section
,
6590 contents
, require_jalx
)
6591 struct bfd_link_info
*info
;
6592 reloc_howto_type
*howto
;
6593 const Elf_Internal_Rela
*relocation
;
6596 asection
*input_section
;
6598 boolean require_jalx
;
6602 int r_type
= ELF32_R_TYPE (relocation
->r_info
);
6604 /* Figure out where the relocation is occurring. */
6605 location
= contents
+ relocation
->r_offset
;
6607 /* Obtain the current value. */
6608 x
= mips_elf_obtain_contents (howto
, relocation
, input_bfd
, contents
);
6610 /* Clear the field we are setting. */
6611 x
&= ~howto
->dst_mask
;
6613 /* If this is the R_MIPS16_26 relocation, we must store the
6614 value in a funny way. */
6615 if (r_type
== R_MIPS16_26
)
6617 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
6618 Most mips16 instructions are 16 bits, but these instructions
6621 The format of these instructions is:
6623 +--------------+--------------------------------+
6624 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
6625 +--------------+--------------------------------+
6627 +-----------------------------------------------+
6629 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
6630 Note that the immediate value in the first word is swapped.
6632 When producing a relocateable object file, R_MIPS16_26 is
6633 handled mostly like R_MIPS_26. In particular, the addend is
6634 stored as a straight 26-bit value in a 32-bit instruction.
6635 (gas makes life simpler for itself by never adjusting a
6636 R_MIPS16_26 reloc to be against a section, so the addend is
6637 always zero). However, the 32 bit instruction is stored as 2
6638 16-bit values, rather than a single 32-bit value. In a
6639 big-endian file, the result is the same; in a little-endian
6640 file, the two 16-bit halves of the 32 bit value are swapped.
6641 This is so that a disassembler can recognize the jal
6644 When doing a final link, R_MIPS16_26 is treated as a 32 bit
6645 instruction stored as two 16-bit values. The addend A is the
6646 contents of the targ26 field. The calculation is the same as
6647 R_MIPS_26. When storing the calculated value, reorder the
6648 immediate value as shown above, and don't forget to store the
6649 value as two 16-bit values.
6651 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
6655 +--------+----------------------+
6659 +--------+----------------------+
6662 +----------+------+-------------+
6666 +----------+--------------------+
6667 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
6668 ((sub1 << 16) | sub2)).
6670 When producing a relocateable object file, the calculation is
6671 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6672 When producing a fully linked file, the calculation is
6673 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6674 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
6676 if (!info
->relocateable
)
6677 /* Shuffle the bits according to the formula above. */
6678 value
= (((value
& 0x1f0000) << 5)
6679 | ((value
& 0x3e00000) >> 5)
6680 | (value
& 0xffff));
6682 else if (r_type
== R_MIPS16_GPREL
)
6684 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
6685 mode. A typical instruction will have a format like this:
6687 +--------------+--------------------------------+
6688 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
6689 +--------------+--------------------------------+
6690 ! Major ! rx ! ry ! Imm 4:0 !
6691 +--------------+--------------------------------+
6693 EXTEND is the five bit value 11110. Major is the instruction
6696 This is handled exactly like R_MIPS_GPREL16, except that the
6697 addend is retrieved and stored as shown in this diagram; that
6698 is, the Imm fields above replace the V-rel16 field.
6700 All we need to do here is shuffle the bits appropriately. As
6701 above, the two 16-bit halves must be swapped on a
6702 little-endian system. */
6703 value
= (((value
& 0x7e0) << 16)
6704 | ((value
& 0xf800) << 5)
6708 /* Set the field. */
6709 x
|= (value
& howto
->dst_mask
);
6711 /* If required, turn JAL into JALX. */
6715 bfd_vma opcode
= x
>> 26;
6716 bfd_vma jalx_opcode
;
6718 /* Check to see if the opcode is already JAL or JALX. */
6719 if (r_type
== R_MIPS16_26
)
6721 ok
= ((opcode
== 0x6) || (opcode
== 0x7));
6726 ok
= ((opcode
== 0x3) || (opcode
== 0x1d));
6730 /* If the opcode is not JAL or JALX, there's a problem. */
6733 (*_bfd_error_handler
)
6734 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
6735 bfd_get_filename (input_bfd
),
6736 input_section
->name
,
6737 (unsigned long) relocation
->r_offset
);
6738 bfd_set_error (bfd_error_bad_value
);
6742 /* Make this the JALX opcode. */
6743 x
= (x
& ~(0x3f << 26)) | (jalx_opcode
<< 26);
6746 /* Swap the high- and low-order 16 bits on little-endian systems
6747 when doing a MIPS16 relocation. */
6748 if ((r_type
== R_MIPS16_GPREL
|| r_type
== R_MIPS16_26
)
6749 && bfd_little_endian (input_bfd
))
6750 x
= (((x
& 0xffff) << 16) | ((x
& 0xffff0000) >> 16));
6752 /* Put the value into the output. */
6753 bfd_put (8 * bfd_get_reloc_size (howto
), input_bfd
, x
, location
);
6757 /* Returns true if SECTION is a MIPS16 stub section. */
6760 mips_elf_stub_section_p (abfd
, section
)
6761 bfd
*abfd ATTRIBUTE_UNUSED
;
6764 const char *name
= bfd_get_section_name (abfd
, section
);
6766 return (strncmp (name
, FN_STUB
, sizeof FN_STUB
- 1) == 0
6767 || strncmp (name
, CALL_STUB
, sizeof CALL_STUB
- 1) == 0
6768 || strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0);
6771 /* Relocate a MIPS ELF section. */
6774 _bfd_mips_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6775 contents
, relocs
, local_syms
, local_sections
)
6777 struct bfd_link_info
*info
;
6779 asection
*input_section
;
6781 Elf_Internal_Rela
*relocs
;
6782 Elf_Internal_Sym
*local_syms
;
6783 asection
**local_sections
;
6785 Elf_Internal_Rela
*rel
;
6786 const Elf_Internal_Rela
*relend
;
6788 boolean use_saved_addend_p
= false;
6789 struct elf_backend_data
*bed
;
6791 bed
= get_elf_backend_data (output_bfd
);
6792 relend
= relocs
+ input_section
->reloc_count
* bed
->s
->int_rels_per_ext_rel
;
6793 for (rel
= relocs
; rel
< relend
; ++rel
)
6797 reloc_howto_type
*howto
;
6798 boolean require_jalx
;
6799 /* True if the relocation is a RELA relocation, rather than a
6801 boolean rela_relocation_p
= true;
6802 int r_type
= ELF32_R_TYPE (rel
->r_info
);
6803 const char * msg
= (const char *) NULL
;
6805 /* Find the relocation howto for this relocation. */
6806 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
6808 /* Some 32-bit code uses R_MIPS_64. In particular, people use
6809 64-bit code, but make sure all their addresses are in the
6810 lowermost or uppermost 32-bit section of the 64-bit address
6811 space. Thus, when they use an R_MIPS_64 they mean what is
6812 usually meant by R_MIPS_32, with the exception that the
6813 stored value is sign-extended to 64 bits. */
6814 howto
= elf_mips_howto_table
+ R_MIPS_32
;
6816 /* On big-endian systems, we need to lie about the position
6818 if (bfd_big_endian (input_bfd
))
6822 howto
= mips_rtype_to_howto (r_type
);
6824 if (!use_saved_addend_p
)
6826 Elf_Internal_Shdr
*rel_hdr
;
6828 /* If these relocations were originally of the REL variety,
6829 we must pull the addend out of the field that will be
6830 relocated. Otherwise, we simply use the contents of the
6831 RELA relocation. To determine which flavor or relocation
6832 this is, we depend on the fact that the INPUT_SECTION's
6833 REL_HDR is read before its REL_HDR2. */
6834 rel_hdr
= &elf_section_data (input_section
)->rel_hdr
;
6835 if ((size_t) (rel
- relocs
)
6836 >= (NUM_SHDR_ENTRIES (rel_hdr
) * bed
->s
->int_rels_per_ext_rel
))
6837 rel_hdr
= elf_section_data (input_section
)->rel_hdr2
;
6838 if (rel_hdr
->sh_entsize
== MIPS_ELF_REL_SIZE (input_bfd
))
6840 /* Note that this is a REL relocation. */
6841 rela_relocation_p
= false;
6843 /* Get the addend, which is stored in the input file. */
6844 addend
= mips_elf_obtain_contents (howto
,
6848 addend
&= howto
->src_mask
;
6850 /* For some kinds of relocations, the ADDEND is a
6851 combination of the addend stored in two different
6853 if (r_type
== R_MIPS_HI16
6854 || r_type
== R_MIPS_GNU_REL_HI16
6855 || (r_type
== R_MIPS_GOT16
6856 && mips_elf_local_relocation_p (input_bfd
, rel
,
6857 local_sections
, false)))
6860 const Elf_Internal_Rela
*lo16_relocation
;
6861 reloc_howto_type
*lo16_howto
;
6864 /* The combined value is the sum of the HI16 addend,
6865 left-shifted by sixteen bits, and the LO16
6866 addend, sign extended. (Usually, the code does
6867 a `lui' of the HI16 value, and then an `addiu' of
6870 Scan ahead to find a matching LO16 relocation. */
6871 if (r_type
== R_MIPS_GNU_REL_HI16
)
6872 lo
= R_MIPS_GNU_REL_LO16
;
6876 = mips_elf_next_relocation (lo
, rel
, relend
);
6877 if (lo16_relocation
== NULL
)
6880 /* Obtain the addend kept there. */
6881 lo16_howto
= mips_rtype_to_howto (lo
);
6882 l
= mips_elf_obtain_contents (lo16_howto
,
6884 input_bfd
, contents
);
6885 l
&= lo16_howto
->src_mask
;
6886 l
= mips_elf_sign_extend (l
, 16);
6890 /* Compute the combined addend. */
6893 else if (r_type
== R_MIPS16_GPREL
)
6895 /* The addend is scrambled in the object file. See
6896 mips_elf_perform_relocation for details on the
6898 addend
= (((addend
& 0x1f0000) >> 5)
6899 | ((addend
& 0x7e00000) >> 16)
6904 addend
= rel
->r_addend
;
6907 if (info
->relocateable
)
6909 Elf_Internal_Sym
*sym
;
6910 unsigned long r_symndx
;
6912 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
)
6913 && bfd_big_endian (input_bfd
))
6916 /* Since we're just relocating, all we need to do is copy
6917 the relocations back out to the object file, unless
6918 they're against a section symbol, in which case we need
6919 to adjust by the section offset, or unless they're GP
6920 relative in which case we need to adjust by the amount
6921 that we're adjusting GP in this relocateable object. */
6923 if (!mips_elf_local_relocation_p (input_bfd
, rel
, local_sections
,
6925 /* There's nothing to do for non-local relocations. */
6928 if (r_type
== R_MIPS16_GPREL
6929 || r_type
== R_MIPS_GPREL16
6930 || r_type
== R_MIPS_GPREL32
6931 || r_type
== R_MIPS_LITERAL
)
6932 addend
-= (_bfd_get_gp_value (output_bfd
)
6933 - _bfd_get_gp_value (input_bfd
));
6934 else if (r_type
== R_MIPS_26
|| r_type
== R_MIPS16_26
6935 || r_type
== R_MIPS_GNU_REL16_S2
)
6936 /* The addend is stored without its two least
6937 significant bits (which are always zero.) In a
6938 non-relocateable link, calculate_relocation will do
6939 this shift; here, we must do it ourselves. */
6942 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6943 sym
= local_syms
+ r_symndx
;
6944 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
6945 /* Adjust the addend appropriately. */
6946 addend
+= local_sections
[r_symndx
]->output_offset
;
6948 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
6949 then we only want to write out the high-order 16 bits.
6950 The subsequent R_MIPS_LO16 will handle the low-order bits. */
6951 if (r_type
== R_MIPS_HI16
|| r_type
== R_MIPS_GOT16
6952 || r_type
== R_MIPS_GNU_REL_HI16
)
6953 addend
= mips_elf_high (addend
);
6954 /* If the relocation is for an R_MIPS_26 relocation, then
6955 the two low-order bits are not stored in the object file;
6956 they are implicitly zero. */
6957 else if (r_type
== R_MIPS_26
|| r_type
== R_MIPS16_26
6958 || r_type
== R_MIPS_GNU_REL16_S2
)
6961 if (rela_relocation_p
)
6962 /* If this is a RELA relocation, just update the addend.
6963 We have to cast away constness for REL. */
6964 rel
->r_addend
= addend
;
6967 /* Otherwise, we have to write the value back out. Note
6968 that we use the source mask, rather than the
6969 destination mask because the place to which we are
6970 writing will be source of the addend in the final
6972 addend
&= howto
->src_mask
;
6974 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
6975 /* See the comment above about using R_MIPS_64 in the 32-bit
6976 ABI. Here, we need to update the addend. It would be
6977 possible to get away with just using the R_MIPS_32 reloc
6978 but for endianness. */
6984 if (addend
& ((bfd_vma
) 1 << 31))
6985 sign_bits
= ((bfd_vma
) 1 << 32) - 1;
6989 /* If we don't know that we have a 64-bit type,
6990 do two separate stores. */
6991 if (bfd_big_endian (input_bfd
))
6993 /* Store the sign-bits (which are most significant)
6995 low_bits
= sign_bits
;
7001 high_bits
= sign_bits
;
7003 bfd_put_32 (input_bfd
, low_bits
,
7004 contents
+ rel
->r_offset
);
7005 bfd_put_32 (input_bfd
, high_bits
,
7006 contents
+ rel
->r_offset
+ 4);
7010 if (!mips_elf_perform_relocation (info
, howto
, rel
, addend
,
7011 input_bfd
, input_section
,
7016 /* Go on to the next relocation. */
7020 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7021 relocations for the same offset. In that case we are
7022 supposed to treat the output of each relocation as the addend
7024 if (rel
+ 1 < relend
7025 && rel
->r_offset
== rel
[1].r_offset
7026 && ELF32_R_TYPE (rel
[1].r_info
) != R_MIPS_NONE
)
7027 use_saved_addend_p
= true;
7029 use_saved_addend_p
= false;
7031 /* Figure out what value we are supposed to relocate. */
7032 switch (mips_elf_calculate_relocation (output_bfd
,
7045 case bfd_reloc_continue
:
7046 /* There's nothing to do. */
7049 case bfd_reloc_undefined
:
7050 /* mips_elf_calculate_relocation already called the
7051 undefined_symbol callback. There's no real point in
7052 trying to perform the relocation at this point, so we
7053 just skip ahead to the next relocation. */
7056 case bfd_reloc_notsupported
:
7057 msg
= _("internal error: unsupported relocation error");
7058 info
->callbacks
->warning
7059 (info
, msg
, name
, input_bfd
, input_section
, rel
->r_offset
);
7062 case bfd_reloc_overflow
:
7063 if (use_saved_addend_p
)
7064 /* Ignore overflow until we reach the last relocation for
7065 a given location. */
7069 BFD_ASSERT (name
!= NULL
);
7070 if (! ((*info
->callbacks
->reloc_overflow
)
7071 (info
, name
, howto
->name
, (bfd_vma
) 0,
7072 input_bfd
, input_section
, rel
->r_offset
)))
7085 /* If we've got another relocation for the address, keep going
7086 until we reach the last one. */
7087 if (use_saved_addend_p
)
7093 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
7094 /* See the comment above about using R_MIPS_64 in the 32-bit
7095 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7096 that calculated the right value. Now, however, we
7097 sign-extend the 32-bit result to 64-bits, and store it as a
7098 64-bit value. We are especially generous here in that we
7099 go to extreme lengths to support this usage on systems with
7100 only a 32-bit VMA. */
7106 if (value
& ((bfd_vma
) 1 << 31))
7107 sign_bits
= ((bfd_vma
) 1 << 32) - 1;
7111 /* If we don't know that we have a 64-bit type,
7112 do two separate stores. */
7113 if (bfd_big_endian (input_bfd
))
7115 /* Undo what we did above. */
7117 /* Store the sign-bits (which are most significant)
7119 low_bits
= sign_bits
;
7125 high_bits
= sign_bits
;
7127 bfd_put_32 (input_bfd
, low_bits
,
7128 contents
+ rel
->r_offset
);
7129 bfd_put_32 (input_bfd
, high_bits
,
7130 contents
+ rel
->r_offset
+ 4);
7134 /* Actually perform the relocation. */
7135 if (!mips_elf_perform_relocation (info
, howto
, rel
, value
, input_bfd
,
7136 input_section
, contents
,
7144 /* This hook function is called before the linker writes out a global
7145 symbol. We mark symbols as small common if appropriate. This is
7146 also where we undo the increment of the value for a mips16 symbol. */
7149 _bfd_mips_elf_link_output_symbol_hook (abfd
, info
, name
, sym
, input_sec
)
7150 bfd
*abfd ATTRIBUTE_UNUSED
;
7151 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7152 const char *name ATTRIBUTE_UNUSED
;
7153 Elf_Internal_Sym
*sym
;
7154 asection
*input_sec
;
7156 /* If we see a common symbol, which implies a relocatable link, then
7157 if a symbol was small common in an input file, mark it as small
7158 common in the output file. */
7159 if (sym
->st_shndx
== SHN_COMMON
7160 && strcmp (input_sec
->name
, ".scommon") == 0)
7161 sym
->st_shndx
= SHN_MIPS_SCOMMON
;
7163 if (sym
->st_other
== STO_MIPS16
7164 && (sym
->st_value
& 1) != 0)
7170 /* Functions for the dynamic linker. */
7172 /* The name of the dynamic interpreter. This is put in the .interp
7175 #define ELF_DYNAMIC_INTERPRETER(abfd) \
7176 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7177 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7178 : "/usr/lib/libc.so.1")
7180 /* Create dynamic sections when linking against a dynamic object. */
7183 _bfd_mips_elf_create_dynamic_sections (abfd
, info
)
7185 struct bfd_link_info
*info
;
7187 struct elf_link_hash_entry
*h
;
7189 register asection
*s
;
7190 const char * const *namep
;
7192 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
7193 | SEC_LINKER_CREATED
| SEC_READONLY
);
7195 /* Mips ABI requests the .dynamic section to be read only. */
7196 s
= bfd_get_section_by_name (abfd
, ".dynamic");
7199 if (! bfd_set_section_flags (abfd
, s
, flags
))
7203 /* We need to create .got section. */
7204 if (! mips_elf_create_got_section (abfd
, info
))
7207 /* Create the .msym section on IRIX6. It is used by the dynamic
7208 linker to speed up dynamic relocations, and to avoid computing
7209 the ELF hash for symbols. */
7210 if (IRIX_COMPAT (abfd
) == ict_irix6
7211 && !mips_elf_create_msym_section (abfd
))
7214 /* Create .stub section. */
7215 if (bfd_get_section_by_name (abfd
,
7216 MIPS_ELF_STUB_SECTION_NAME (abfd
)) == NULL
)
7218 s
= bfd_make_section (abfd
, MIPS_ELF_STUB_SECTION_NAME (abfd
));
7220 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_CODE
)
7221 || ! bfd_set_section_alignment (abfd
, s
,
7222 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7226 if ((IRIX_COMPAT (abfd
) == ict_irix5
|| IRIX_COMPAT (abfd
) == ict_none
)
7228 && bfd_get_section_by_name (abfd
, ".rld_map") == NULL
)
7230 s
= bfd_make_section (abfd
, ".rld_map");
7232 || ! bfd_set_section_flags (abfd
, s
, flags
& ~SEC_READONLY
)
7233 || ! bfd_set_section_alignment (abfd
, s
,
7234 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7238 /* On IRIX5, we adjust add some additional symbols and change the
7239 alignments of several sections. There is no ABI documentation
7240 indicating that this is necessary on IRIX6, nor any evidence that
7241 the linker takes such action. */
7242 if (IRIX_COMPAT (abfd
) == ict_irix5
)
7244 for (namep
= mips_elf_dynsym_rtproc_names
; *namep
!= NULL
; namep
++)
7247 if (! (_bfd_generic_link_add_one_symbol
7248 (info
, abfd
, *namep
, BSF_GLOBAL
, bfd_und_section_ptr
,
7249 (bfd_vma
) 0, (const char *) NULL
, false,
7250 get_elf_backend_data (abfd
)->collect
,
7251 (struct bfd_link_hash_entry
**) &h
)))
7253 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7254 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7255 h
->type
= STT_SECTION
;
7257 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7261 /* We need to create a .compact_rel section. */
7262 if (SGI_COMPAT (abfd
))
7264 if (!mips_elf_create_compact_rel_section (abfd
, info
))
7268 /* Change aligments of some sections. */
7269 s
= bfd_get_section_by_name (abfd
, ".hash");
7271 bfd_set_section_alignment (abfd
, s
, 4);
7272 s
= bfd_get_section_by_name (abfd
, ".dynsym");
7274 bfd_set_section_alignment (abfd
, s
, 4);
7275 s
= bfd_get_section_by_name (abfd
, ".dynstr");
7277 bfd_set_section_alignment (abfd
, s
, 4);
7278 s
= bfd_get_section_by_name (abfd
, ".reginfo");
7280 bfd_set_section_alignment (abfd
, s
, 4);
7281 s
= bfd_get_section_by_name (abfd
, ".dynamic");
7283 bfd_set_section_alignment (abfd
, s
, 4);
7289 if (SGI_COMPAT (abfd
))
7291 if (!(_bfd_generic_link_add_one_symbol
7292 (info
, abfd
, "_DYNAMIC_LINK", BSF_GLOBAL
, bfd_abs_section_ptr
,
7293 (bfd_vma
) 0, (const char *) NULL
, false,
7294 get_elf_backend_data (abfd
)->collect
,
7295 (struct bfd_link_hash_entry
**) &h
)))
7300 /* For normal mips it is _DYNAMIC_LINKING. */
7301 if (!(_bfd_generic_link_add_one_symbol
7302 (info
, abfd
, "_DYNAMIC_LINKING", BSF_GLOBAL
,
7303 bfd_abs_section_ptr
, (bfd_vma
) 0, (const char *) NULL
, false,
7304 get_elf_backend_data (abfd
)->collect
,
7305 (struct bfd_link_hash_entry
**) &h
)))
7308 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7309 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7310 h
->type
= STT_SECTION
;
7312 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7315 if (! mips_elf_hash_table (info
)->use_rld_obj_head
)
7317 /* __rld_map is a four byte word located in the .data section
7318 and is filled in by the rtld to contain a pointer to
7319 the _r_debug structure. Its symbol value will be set in
7320 mips_elf_finish_dynamic_symbol. */
7321 s
= bfd_get_section_by_name (abfd
, ".rld_map");
7322 BFD_ASSERT (s
!= NULL
);
7325 if (SGI_COMPAT (abfd
))
7327 if (!(_bfd_generic_link_add_one_symbol
7328 (info
, abfd
, "__rld_map", BSF_GLOBAL
, s
,
7329 (bfd_vma
) 0, (const char *) NULL
, false,
7330 get_elf_backend_data (abfd
)->collect
,
7331 (struct bfd_link_hash_entry
**) &h
)))
7336 /* For normal mips the symbol is __RLD_MAP. */
7337 if (!(_bfd_generic_link_add_one_symbol
7338 (info
, abfd
, "__RLD_MAP", BSF_GLOBAL
, s
,
7339 (bfd_vma
) 0, (const char *) NULL
, false,
7340 get_elf_backend_data (abfd
)->collect
,
7341 (struct bfd_link_hash_entry
**) &h
)))
7344 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7345 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7346 h
->type
= STT_OBJECT
;
7348 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7356 /* Create the .compact_rel section. */
7359 mips_elf_create_compact_rel_section (abfd
, info
)
7361 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7364 register asection
*s
;
7366 if (bfd_get_section_by_name (abfd
, ".compact_rel") == NULL
)
7368 flags
= (SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
7371 s
= bfd_make_section (abfd
, ".compact_rel");
7373 || ! bfd_set_section_flags (abfd
, s
, flags
)
7374 || ! bfd_set_section_alignment (abfd
, s
,
7375 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7378 s
->_raw_size
= sizeof (Elf32_External_compact_rel
);
7384 /* Create the .got section to hold the global offset table. */
7387 mips_elf_create_got_section (abfd
, info
)
7389 struct bfd_link_info
*info
;
7392 register asection
*s
;
7393 struct elf_link_hash_entry
*h
;
7394 struct mips_got_info
*g
;
7396 /* This function may be called more than once. */
7397 if (mips_elf_got_section (abfd
))
7400 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
7401 | SEC_LINKER_CREATED
);
7403 s
= bfd_make_section (abfd
, ".got");
7405 || ! bfd_set_section_flags (abfd
, s
, flags
)
7406 || ! bfd_set_section_alignment (abfd
, s
, 4))
7409 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7410 linker script because we don't want to define the symbol if we
7411 are not creating a global offset table. */
7413 if (! (_bfd_generic_link_add_one_symbol
7414 (info
, abfd
, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL
, s
,
7415 (bfd_vma
) 0, (const char *) NULL
, false,
7416 get_elf_backend_data (abfd
)->collect
,
7417 (struct bfd_link_hash_entry
**) &h
)))
7419 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7420 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7421 h
->type
= STT_OBJECT
;
7424 && ! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7427 /* The first several global offset table entries are reserved. */
7428 s
->_raw_size
= MIPS_RESERVED_GOTNO
* MIPS_ELF_GOT_SIZE (abfd
);
7430 g
= (struct mips_got_info
*) bfd_alloc (abfd
,
7431 sizeof (struct mips_got_info
));
7434 g
->global_gotsym
= NULL
;
7435 g
->local_gotno
= MIPS_RESERVED_GOTNO
;
7436 g
->assigned_gotno
= MIPS_RESERVED_GOTNO
;
7437 if (elf_section_data (s
) == NULL
)
7440 (PTR
) bfd_zalloc (abfd
, sizeof (struct bfd_elf_section_data
));
7441 if (elf_section_data (s
) == NULL
)
7444 elf_section_data (s
)->tdata
= (PTR
) g
;
7445 elf_section_data (s
)->this_hdr
.sh_flags
7446 |= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
7451 /* Returns the .msym section for ABFD, creating it if it does not
7452 already exist. Returns NULL to indicate error. */
7455 mips_elf_create_msym_section (abfd
)
7460 s
= bfd_get_section_by_name (abfd
, MIPS_ELF_MSYM_SECTION_NAME (abfd
));
7463 s
= bfd_make_section (abfd
, MIPS_ELF_MSYM_SECTION_NAME (abfd
));
7465 || !bfd_set_section_flags (abfd
, s
,
7469 | SEC_LINKER_CREATED
7471 || !bfd_set_section_alignment (abfd
, s
,
7472 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7479 /* Add room for N relocations to the .rel.dyn section in ABFD. */
7482 mips_elf_allocate_dynamic_relocations (abfd
, n
)
7488 s
= bfd_get_section_by_name (abfd
, MIPS_ELF_REL_DYN_SECTION_NAME (abfd
));
7489 BFD_ASSERT (s
!= NULL
);
7491 if (s
->_raw_size
== 0)
7493 /* Make room for a null element. */
7494 s
->_raw_size
+= MIPS_ELF_REL_SIZE (abfd
);
7497 s
->_raw_size
+= n
* MIPS_ELF_REL_SIZE (abfd
);
7500 /* Look through the relocs for a section during the first phase, and
7501 allocate space in the global offset table. */
7504 _bfd_mips_elf_check_relocs (abfd
, info
, sec
, relocs
)
7506 struct bfd_link_info
*info
;
7508 const Elf_Internal_Rela
*relocs
;
7512 Elf_Internal_Shdr
*symtab_hdr
;
7513 struct elf_link_hash_entry
**sym_hashes
;
7514 struct mips_got_info
*g
;
7516 const Elf_Internal_Rela
*rel
;
7517 const Elf_Internal_Rela
*rel_end
;
7520 struct elf_backend_data
*bed
;
7522 if (info
->relocateable
)
7525 dynobj
= elf_hash_table (info
)->dynobj
;
7526 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
7527 sym_hashes
= elf_sym_hashes (abfd
);
7528 extsymoff
= (elf_bad_symtab (abfd
)) ? 0 : symtab_hdr
->sh_info
;
7530 /* Check for the mips16 stub sections. */
7532 name
= bfd_get_section_name (abfd
, sec
);
7533 if (strncmp (name
, FN_STUB
, sizeof FN_STUB
- 1) == 0)
7535 unsigned long r_symndx
;
7537 /* Look at the relocation information to figure out which symbol
7540 r_symndx
= ELF32_R_SYM (relocs
->r_info
);
7542 if (r_symndx
< extsymoff
7543 || sym_hashes
[r_symndx
- extsymoff
] == NULL
)
7547 /* This stub is for a local symbol. This stub will only be
7548 needed if there is some relocation in this BFD, other
7549 than a 16 bit function call, which refers to this symbol. */
7550 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
7552 Elf_Internal_Rela
*sec_relocs
;
7553 const Elf_Internal_Rela
*r
, *rend
;
7555 /* We can ignore stub sections when looking for relocs. */
7556 if ((o
->flags
& SEC_RELOC
) == 0
7557 || o
->reloc_count
== 0
7558 || strncmp (bfd_get_section_name (abfd
, o
), FN_STUB
,
7559 sizeof FN_STUB
- 1) == 0
7560 || strncmp (bfd_get_section_name (abfd
, o
), CALL_STUB
,
7561 sizeof CALL_STUB
- 1) == 0
7562 || strncmp (bfd_get_section_name (abfd
, o
), CALL_FP_STUB
,
7563 sizeof CALL_FP_STUB
- 1) == 0)
7566 sec_relocs
= (_bfd_elf32_link_read_relocs
7567 (abfd
, o
, (PTR
) NULL
,
7568 (Elf_Internal_Rela
*) NULL
,
7569 info
->keep_memory
));
7570 if (sec_relocs
== NULL
)
7573 rend
= sec_relocs
+ o
->reloc_count
;
7574 for (r
= sec_relocs
; r
< rend
; r
++)
7575 if (ELF32_R_SYM (r
->r_info
) == r_symndx
7576 && ELF32_R_TYPE (r
->r_info
) != R_MIPS16_26
)
7579 if (! info
->keep_memory
)
7588 /* There is no non-call reloc for this stub, so we do
7589 not need it. Since this function is called before
7590 the linker maps input sections to output sections, we
7591 can easily discard it by setting the SEC_EXCLUDE
7593 sec
->flags
|= SEC_EXCLUDE
;
7597 /* Record this stub in an array of local symbol stubs for
7599 if (elf_tdata (abfd
)->local_stubs
== NULL
)
7601 unsigned long symcount
;
7604 if (elf_bad_symtab (abfd
))
7605 symcount
= NUM_SHDR_ENTRIES (symtab_hdr
);
7607 symcount
= symtab_hdr
->sh_info
;
7608 n
= (asection
**) bfd_zalloc (abfd
,
7609 symcount
* sizeof (asection
*));
7612 elf_tdata (abfd
)->local_stubs
= n
;
7615 elf_tdata (abfd
)->local_stubs
[r_symndx
] = sec
;
7617 /* We don't need to set mips16_stubs_seen in this case.
7618 That flag is used to see whether we need to look through
7619 the global symbol table for stubs. We don't need to set
7620 it here, because we just have a local stub. */
7624 struct mips_elf_link_hash_entry
*h
;
7626 h
= ((struct mips_elf_link_hash_entry
*)
7627 sym_hashes
[r_symndx
- extsymoff
]);
7629 /* H is the symbol this stub is for. */
7632 mips_elf_hash_table (info
)->mips16_stubs_seen
= true;
7635 else if (strncmp (name
, CALL_STUB
, sizeof CALL_STUB
- 1) == 0
7636 || strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
7638 unsigned long r_symndx
;
7639 struct mips_elf_link_hash_entry
*h
;
7642 /* Look at the relocation information to figure out which symbol
7645 r_symndx
= ELF32_R_SYM (relocs
->r_info
);
7647 if (r_symndx
< extsymoff
7648 || sym_hashes
[r_symndx
- extsymoff
] == NULL
)
7650 /* This stub was actually built for a static symbol defined
7651 in the same file. We assume that all static symbols in
7652 mips16 code are themselves mips16, so we can simply
7653 discard this stub. Since this function is called before
7654 the linker maps input sections to output sections, we can
7655 easily discard it by setting the SEC_EXCLUDE flag. */
7656 sec
->flags
|= SEC_EXCLUDE
;
7660 h
= ((struct mips_elf_link_hash_entry
*)
7661 sym_hashes
[r_symndx
- extsymoff
]);
7663 /* H is the symbol this stub is for. */
7665 if (strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
7666 loc
= &h
->call_fp_stub
;
7668 loc
= &h
->call_stub
;
7670 /* If we already have an appropriate stub for this function, we
7671 don't need another one, so we can discard this one. Since
7672 this function is called before the linker maps input sections
7673 to output sections, we can easily discard it by setting the
7674 SEC_EXCLUDE flag. We can also discard this section if we
7675 happen to already know that this is a mips16 function; it is
7676 not necessary to check this here, as it is checked later, but
7677 it is slightly faster to check now. */
7678 if (*loc
!= NULL
|| h
->root
.other
== STO_MIPS16
)
7680 sec
->flags
|= SEC_EXCLUDE
;
7685 mips_elf_hash_table (info
)->mips16_stubs_seen
= true;
7695 sgot
= mips_elf_got_section (dynobj
);
7700 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
7701 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
7702 BFD_ASSERT (g
!= NULL
);
7707 bed
= get_elf_backend_data (abfd
);
7708 rel_end
= relocs
+ sec
->reloc_count
* bed
->s
->int_rels_per_ext_rel
;
7709 for (rel
= relocs
; rel
< rel_end
; ++rel
)
7711 unsigned long r_symndx
;
7713 struct elf_link_hash_entry
*h
;
7715 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7716 r_type
= ELF32_R_TYPE (rel
->r_info
);
7718 if (r_symndx
< extsymoff
)
7720 else if (r_symndx
>= extsymoff
+ NUM_SHDR_ENTRIES (symtab_hdr
))
7722 (*_bfd_error_handler
)
7723 (_("Malformed reloc detected for section %s"), name
);
7724 bfd_set_error (bfd_error_bad_value
);
7729 h
= sym_hashes
[r_symndx
- extsymoff
];
7731 /* This may be an indirect symbol created because of a version. */
7734 while (h
->root
.type
== bfd_link_hash_indirect
)
7735 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7739 /* Some relocs require a global offset table. */
7740 if (dynobj
== NULL
|| sgot
== NULL
)
7746 case R_MIPS_CALL_HI16
:
7747 case R_MIPS_CALL_LO16
:
7748 case R_MIPS_GOT_HI16
:
7749 case R_MIPS_GOT_LO16
:
7750 case R_MIPS_GOT_PAGE
:
7751 case R_MIPS_GOT_OFST
:
7752 case R_MIPS_GOT_DISP
:
7754 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
7755 if (! mips_elf_create_got_section (dynobj
, info
))
7757 g
= mips_elf_got_info (dynobj
, &sgot
);
7764 && (info
->shared
|| h
!= NULL
)
7765 && (sec
->flags
& SEC_ALLOC
) != 0)
7766 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
7774 if (!h
&& (r_type
== R_MIPS_CALL_LO16
7775 || r_type
== R_MIPS_GOT_LO16
7776 || r_type
== R_MIPS_GOT_DISP
))
7778 /* We may need a local GOT entry for this relocation. We
7779 don't count R_MIPS_GOT_PAGE because we can estimate the
7780 maximum number of pages needed by looking at the size of
7781 the segment. Similar comments apply to R_MIPS_GOT16 and
7782 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
7783 R_MIPS_CALL_HI16 because these are always followed by an
7784 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
7786 This estimation is very conservative since we can merge
7787 duplicate entries in the GOT. In order to be less
7788 conservative, we could actually build the GOT here,
7789 rather than in relocate_section. */
7791 sgot
->_raw_size
+= MIPS_ELF_GOT_SIZE (dynobj
);
7799 (*_bfd_error_handler
)
7800 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
7801 bfd_get_filename (abfd
), (unsigned long) rel
->r_offset
);
7802 bfd_set_error (bfd_error_bad_value
);
7807 case R_MIPS_CALL_HI16
:
7808 case R_MIPS_CALL_LO16
:
7811 /* This symbol requires a global offset table entry. */
7812 if (!mips_elf_record_global_got_symbol (h
, info
, g
))
7815 /* We need a stub, not a plt entry for the undefined
7816 function. But we record it as if it needs plt. See
7817 elf_adjust_dynamic_symbol in elflink.h. */
7818 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
7824 case R_MIPS_GOT_HI16
:
7825 case R_MIPS_GOT_LO16
:
7826 case R_MIPS_GOT_DISP
:
7827 /* This symbol requires a global offset table entry. */
7828 if (h
&& !mips_elf_record_global_got_symbol (h
, info
, g
))
7835 if ((info
->shared
|| h
!= NULL
)
7836 && (sec
->flags
& SEC_ALLOC
) != 0)
7840 const char *name
= MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
);
7842 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7845 sreloc
= bfd_make_section (dynobj
, name
);
7847 || ! bfd_set_section_flags (dynobj
, sreloc
,
7852 | SEC_LINKER_CREATED
7854 || ! bfd_set_section_alignment (dynobj
, sreloc
,
7859 #define MIPS_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
7862 /* When creating a shared object, we must copy these
7863 reloc types into the output file as R_MIPS_REL32
7864 relocs. We make room for this reloc in the
7865 .rel.dyn reloc section. */
7866 mips_elf_allocate_dynamic_relocations (dynobj
, 1);
7867 if ((sec
->flags
& MIPS_READONLY_SECTION
)
7868 == MIPS_READONLY_SECTION
)
7869 /* We tell the dynamic linker that there are
7870 relocations against the text segment. */
7871 info
->flags
|= DF_TEXTREL
;
7875 struct mips_elf_link_hash_entry
*hmips
;
7877 /* We only need to copy this reloc if the symbol is
7878 defined in a dynamic object. */
7879 hmips
= (struct mips_elf_link_hash_entry
*) h
;
7880 ++hmips
->possibly_dynamic_relocs
;
7881 if ((sec
->flags
& MIPS_READONLY_SECTION
)
7882 == MIPS_READONLY_SECTION
)
7883 /* We need it to tell the dynamic linker if there
7884 are relocations against the text segment. */
7885 hmips
->readonly_reloc
= true;
7888 /* Even though we don't directly need a GOT entry for
7889 this symbol, a symbol must have a dynamic symbol
7890 table index greater that DT_MIPS_GOTSYM if there are
7891 dynamic relocations against it. */
7893 && !mips_elf_record_global_got_symbol (h
, info
, g
))
7897 if (SGI_COMPAT (abfd
))
7898 mips_elf_hash_table (info
)->compact_rel_size
+=
7899 sizeof (Elf32_External_crinfo
);
7903 case R_MIPS_GPREL16
:
7904 case R_MIPS_LITERAL
:
7905 case R_MIPS_GPREL32
:
7906 if (SGI_COMPAT (abfd
))
7907 mips_elf_hash_table (info
)->compact_rel_size
+=
7908 sizeof (Elf32_External_crinfo
);
7911 /* This relocation describes the C++ object vtable hierarchy.
7912 Reconstruct it for later use during GC. */
7913 case R_MIPS_GNU_VTINHERIT
:
7914 if (!_bfd_elf32_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7918 /* This relocation describes which C++ vtable entries are actually
7919 used. Record for later use during GC. */
7920 case R_MIPS_GNU_VTENTRY
:
7921 if (!_bfd_elf32_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7929 /* We must not create a stub for a symbol that has relocations
7930 related to taking the function's address. */
7936 struct mips_elf_link_hash_entry
*mh
;
7938 mh
= (struct mips_elf_link_hash_entry
*) h
;
7939 mh
->no_fn_stub
= true;
7943 case R_MIPS_CALL_HI16
:
7944 case R_MIPS_CALL_LO16
:
7948 /* If this reloc is not a 16 bit call, and it has a global
7949 symbol, then we will need the fn_stub if there is one.
7950 References from a stub section do not count. */
7952 && r_type
!= R_MIPS16_26
7953 && strncmp (bfd_get_section_name (abfd
, sec
), FN_STUB
,
7954 sizeof FN_STUB
- 1) != 0
7955 && strncmp (bfd_get_section_name (abfd
, sec
), CALL_STUB
,
7956 sizeof CALL_STUB
- 1) != 0
7957 && strncmp (bfd_get_section_name (abfd
, sec
), CALL_FP_STUB
,
7958 sizeof CALL_FP_STUB
- 1) != 0)
7960 struct mips_elf_link_hash_entry
*mh
;
7962 mh
= (struct mips_elf_link_hash_entry
*) h
;
7963 mh
->need_fn_stub
= true;
7970 /* Return the section that should be marked against GC for a given
7974 _bfd_mips_elf_gc_mark_hook (abfd
, info
, rel
, h
, sym
)
7976 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7977 Elf_Internal_Rela
*rel
;
7978 struct elf_link_hash_entry
*h
;
7979 Elf_Internal_Sym
*sym
;
7981 /* ??? Do mips16 stub sections need to be handled special? */
7985 switch (ELF32_R_TYPE (rel
->r_info
))
7987 case R_MIPS_GNU_VTINHERIT
:
7988 case R_MIPS_GNU_VTENTRY
:
7992 switch (h
->root
.type
)
7994 case bfd_link_hash_defined
:
7995 case bfd_link_hash_defweak
:
7996 return h
->root
.u
.def
.section
;
7998 case bfd_link_hash_common
:
7999 return h
->root
.u
.c
.p
->section
;
8008 if (!(elf_bad_symtab (abfd
)
8009 && ELF_ST_BIND (sym
->st_info
) != STB_LOCAL
)
8010 && ! ((sym
->st_shndx
<= 0 || sym
->st_shndx
>= SHN_LORESERVE
)
8011 && sym
->st_shndx
!= SHN_COMMON
))
8013 return bfd_section_from_elf_index (abfd
, sym
->st_shndx
);
8020 /* Update the got entry reference counts for the section being removed. */
8023 _bfd_mips_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
8024 bfd
*abfd ATTRIBUTE_UNUSED
;
8025 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
8026 asection
*sec ATTRIBUTE_UNUSED
;
8027 const Elf_Internal_Rela
*relocs ATTRIBUTE_UNUSED
;
8030 Elf_Internal_Shdr
*symtab_hdr
;
8031 struct elf_link_hash_entry
**sym_hashes
;
8032 bfd_signed_vma
*local_got_refcounts
;
8033 const Elf_Internal_Rela
*rel
, *relend
;
8034 unsigned long r_symndx
;
8035 struct elf_link_hash_entry
*h
;
8037 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8038 sym_hashes
= elf_sym_hashes (abfd
);
8039 local_got_refcounts
= elf_local_got_refcounts (abfd
);
8041 relend
= relocs
+ sec
->reloc_count
;
8042 for (rel
= relocs
; rel
< relend
; rel
++)
8043 switch (ELF32_R_TYPE (rel
->r_info
))
8047 case R_MIPS_CALL_HI16
:
8048 case R_MIPS_CALL_LO16
:
8049 case R_MIPS_GOT_HI16
:
8050 case R_MIPS_GOT_LO16
:
8051 /* ??? It would seem that the existing MIPS code does no sort
8052 of reference counting or whatnot on its GOT and PLT entries,
8053 so it is not possible to garbage collect them at this time. */
8064 /* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8065 hiding the old indirect symbol. Process additional relocation
8069 _bfd_mips_elf_copy_indirect_symbol (dir
, ind
)
8070 struct elf_link_hash_entry
*dir
, *ind
;
8072 struct mips_elf_link_hash_entry
*dirmips
, *indmips
;
8074 _bfd_elf_link_hash_copy_indirect (dir
, ind
);
8076 dirmips
= (struct mips_elf_link_hash_entry
*) dir
;
8077 indmips
= (struct mips_elf_link_hash_entry
*) ind
;
8078 dirmips
->possibly_dynamic_relocs
+= indmips
->possibly_dynamic_relocs
;
8079 if (indmips
->readonly_reloc
)
8080 dirmips
->readonly_reloc
= true;
8081 if (dirmips
->min_dyn_reloc_index
== 0
8082 || (indmips
->min_dyn_reloc_index
!= 0
8083 && indmips
->min_dyn_reloc_index
< dirmips
->min_dyn_reloc_index
))
8084 dirmips
->min_dyn_reloc_index
= indmips
->min_dyn_reloc_index
;
8085 if (indmips
->no_fn_stub
)
8086 dirmips
->no_fn_stub
= true;
8089 /* Adjust a symbol defined by a dynamic object and referenced by a
8090 regular object. The current definition is in some section of the
8091 dynamic object, but we're not including those sections. We have to
8092 change the definition to something the rest of the link can
8096 _bfd_mips_elf_adjust_dynamic_symbol (info
, h
)
8097 struct bfd_link_info
*info
;
8098 struct elf_link_hash_entry
*h
;
8101 struct mips_elf_link_hash_entry
*hmips
;
8104 dynobj
= elf_hash_table (info
)->dynobj
;
8106 /* Make sure we know what is going on here. */
8107 BFD_ASSERT (dynobj
!= NULL
8108 && ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
)
8109 || h
->weakdef
!= NULL
8110 || ((h
->elf_link_hash_flags
8111 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
8112 && (h
->elf_link_hash_flags
8113 & ELF_LINK_HASH_REF_REGULAR
) != 0
8114 && (h
->elf_link_hash_flags
8115 & ELF_LINK_HASH_DEF_REGULAR
) == 0)));
8117 /* If this symbol is defined in a dynamic object, we need to copy
8118 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8120 hmips
= (struct mips_elf_link_hash_entry
*) h
;
8121 if (! info
->relocateable
8122 && hmips
->possibly_dynamic_relocs
!= 0
8123 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
8125 mips_elf_allocate_dynamic_relocations (dynobj
,
8126 hmips
->possibly_dynamic_relocs
);
8127 if (hmips
->readonly_reloc
)
8128 /* We tell the dynamic linker that there are relocations
8129 against the text segment. */
8130 info
->flags
|= DF_TEXTREL
;
8133 /* For a function, create a stub, if allowed. */
8134 if (! hmips
->no_fn_stub
8135 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
8137 if (! elf_hash_table (info
)->dynamic_sections_created
)
8140 /* If this symbol is not defined in a regular file, then set
8141 the symbol to the stub location. This is required to make
8142 function pointers compare as equal between the normal
8143 executable and the shared library. */
8144 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
8146 /* We need .stub section. */
8147 s
= bfd_get_section_by_name (dynobj
,
8148 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
8149 BFD_ASSERT (s
!= NULL
);
8151 h
->root
.u
.def
.section
= s
;
8152 h
->root
.u
.def
.value
= s
->_raw_size
;
8154 /* XXX Write this stub address somewhere. */
8155 h
->plt
.offset
= s
->_raw_size
;
8157 /* Make room for this stub code. */
8158 s
->_raw_size
+= MIPS_FUNCTION_STUB_SIZE
;
8160 /* The last half word of the stub will be filled with the index
8161 of this symbol in .dynsym section. */
8165 else if ((h
->type
== STT_FUNC
)
8166 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) == 0)
8168 /* This will set the entry for this symbol in the GOT to 0, and
8169 the dynamic linker will take care of this. */
8170 h
->root
.u
.def
.value
= 0;
8174 /* If this is a weak symbol, and there is a real definition, the
8175 processor independent code will have arranged for us to see the
8176 real definition first, and we can just use the same value. */
8177 if (h
->weakdef
!= NULL
)
8179 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
8180 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
8181 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
8182 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
8186 /* This is a reference to a symbol defined by a dynamic object which
8187 is not a function. */
8192 /* This function is called after all the input files have been read,
8193 and the input sections have been assigned to output sections. We
8194 check for any mips16 stub sections that we can discard. */
8196 static boolean mips_elf_check_mips16_stubs
8197 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
8200 _bfd_mips_elf_always_size_sections (output_bfd
, info
)
8202 struct bfd_link_info
*info
;
8206 /* The .reginfo section has a fixed size. */
8207 ri
= bfd_get_section_by_name (output_bfd
, ".reginfo");
8209 bfd_set_section_size (output_bfd
, ri
, sizeof (Elf32_External_RegInfo
));
8211 if (info
->relocateable
8212 || ! mips_elf_hash_table (info
)->mips16_stubs_seen
)
8215 mips_elf_link_hash_traverse (mips_elf_hash_table (info
),
8216 mips_elf_check_mips16_stubs
,
8222 /* Check the mips16 stubs for a particular symbol, and see if we can
8226 mips_elf_check_mips16_stubs (h
, data
)
8227 struct mips_elf_link_hash_entry
*h
;
8228 PTR data ATTRIBUTE_UNUSED
;
8230 if (h
->fn_stub
!= NULL
8231 && ! h
->need_fn_stub
)
8233 /* We don't need the fn_stub; the only references to this symbol
8234 are 16 bit calls. Clobber the size to 0 to prevent it from
8235 being included in the link. */
8236 h
->fn_stub
->_raw_size
= 0;
8237 h
->fn_stub
->_cooked_size
= 0;
8238 h
->fn_stub
->flags
&= ~SEC_RELOC
;
8239 h
->fn_stub
->reloc_count
= 0;
8240 h
->fn_stub
->flags
|= SEC_EXCLUDE
;
8243 if (h
->call_stub
!= NULL
8244 && h
->root
.other
== STO_MIPS16
)
8246 /* We don't need the call_stub; this is a 16 bit function, so
8247 calls from other 16 bit functions are OK. Clobber the size
8248 to 0 to prevent it from being included in the link. */
8249 h
->call_stub
->_raw_size
= 0;
8250 h
->call_stub
->_cooked_size
= 0;
8251 h
->call_stub
->flags
&= ~SEC_RELOC
;
8252 h
->call_stub
->reloc_count
= 0;
8253 h
->call_stub
->flags
|= SEC_EXCLUDE
;
8256 if (h
->call_fp_stub
!= NULL
8257 && h
->root
.other
== STO_MIPS16
)
8259 /* We don't need the call_stub; this is a 16 bit function, so
8260 calls from other 16 bit functions are OK. Clobber the size
8261 to 0 to prevent it from being included in the link. */
8262 h
->call_fp_stub
->_raw_size
= 0;
8263 h
->call_fp_stub
->_cooked_size
= 0;
8264 h
->call_fp_stub
->flags
&= ~SEC_RELOC
;
8265 h
->call_fp_stub
->reloc_count
= 0;
8266 h
->call_fp_stub
->flags
|= SEC_EXCLUDE
;
8272 /* Set the sizes of the dynamic sections. */
8275 _bfd_mips_elf_size_dynamic_sections (output_bfd
, info
)
8277 struct bfd_link_info
*info
;
8282 struct mips_got_info
*g
= NULL
;
8284 dynobj
= elf_hash_table (info
)->dynobj
;
8285 BFD_ASSERT (dynobj
!= NULL
);
8287 if (elf_hash_table (info
)->dynamic_sections_created
)
8289 /* Set the contents of the .interp section to the interpreter. */
8292 s
= bfd_get_section_by_name (dynobj
, ".interp");
8293 BFD_ASSERT (s
!= NULL
);
8295 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd
)) + 1;
8297 = (bfd_byte
*) ELF_DYNAMIC_INTERPRETER (output_bfd
);
8301 /* The check_relocs and adjust_dynamic_symbol entry points have
8302 determined the sizes of the various dynamic sections. Allocate
8305 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
8310 /* It's OK to base decisions on the section name, because none
8311 of the dynobj section names depend upon the input files. */
8312 name
= bfd_get_section_name (dynobj
, s
);
8314 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
8319 if (strncmp (name
, ".rel", 4) == 0)
8321 if (s
->_raw_size
== 0)
8323 /* We only strip the section if the output section name
8324 has the same name. Otherwise, there might be several
8325 input sections for this output section. FIXME: This
8326 code is probably not needed these days anyhow, since
8327 the linker now does not create empty output sections. */
8328 if (s
->output_section
!= NULL
8330 bfd_get_section_name (s
->output_section
->owner
,
8331 s
->output_section
)) == 0)
8336 const char *outname
;
8339 /* If this relocation section applies to a read only
8340 section, then we probably need a DT_TEXTREL entry.
8341 If the relocation section is .rel.dyn, we always
8342 assert a DT_TEXTREL entry rather than testing whether
8343 there exists a relocation to a read only section or
8345 outname
= bfd_get_section_name (output_bfd
,
8347 target
= bfd_get_section_by_name (output_bfd
, outname
+ 4);
8349 && (target
->flags
& SEC_READONLY
) != 0
8350 && (target
->flags
& SEC_ALLOC
) != 0)
8352 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
)) == 0)
8355 /* We use the reloc_count field as a counter if we need
8356 to copy relocs into the output file. */
8358 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
)) != 0)
8362 else if (strncmp (name
, ".got", 4) == 0)
8365 bfd_size_type loadable_size
= 0;
8366 bfd_size_type local_gotno
;
8369 BFD_ASSERT (elf_section_data (s
) != NULL
);
8370 g
= (struct mips_got_info
*) elf_section_data (s
)->tdata
;
8371 BFD_ASSERT (g
!= NULL
);
8373 /* Calculate the total loadable size of the output. That
8374 will give us the maximum number of GOT_PAGE entries
8376 for (sub
= info
->input_bfds
; sub
; sub
= sub
->link_next
)
8378 asection
*subsection
;
8380 for (subsection
= sub
->sections
;
8382 subsection
= subsection
->next
)
8384 if ((subsection
->flags
& SEC_ALLOC
) == 0)
8386 loadable_size
+= (subsection
->_raw_size
+ 0xf) & ~0xf;
8389 loadable_size
+= MIPS_FUNCTION_STUB_SIZE
;
8391 /* Assume there are two loadable segments consisting of
8392 contiguous sections. Is 5 enough? */
8393 local_gotno
= (loadable_size
>> 16) + 5;
8394 if (IRIX_COMPAT (output_bfd
) == ict_irix6
)
8395 /* It's possible we will need GOT_PAGE entries as well as
8396 GOT16 entries. Often, these will be able to share GOT
8397 entries, but not always. */
8400 g
->local_gotno
+= local_gotno
;
8401 s
->_raw_size
+= local_gotno
* MIPS_ELF_GOT_SIZE (dynobj
);
8403 /* There has to be a global GOT entry for every symbol with
8404 a dynamic symbol table index of DT_MIPS_GOTSYM or
8405 higher. Therefore, it make sense to put those symbols
8406 that need GOT entries at the end of the symbol table. We
8408 if (!mips_elf_sort_hash_table (info
, 1))
8411 if (g
->global_gotsym
!= NULL
)
8412 i
= elf_hash_table (info
)->dynsymcount
- g
->global_gotsym
->dynindx
;
8414 /* If there are no global symbols, or none requiring
8415 relocations, then GLOBAL_GOTSYM will be NULL. */
8417 g
->global_gotno
= i
;
8418 s
->_raw_size
+= i
* MIPS_ELF_GOT_SIZE (dynobj
);
8420 else if (strcmp (name
, MIPS_ELF_STUB_SECTION_NAME (output_bfd
)) == 0)
8422 /* Irix rld assumes that the function stub isn't at the end
8423 of .text section. So put a dummy. XXX */
8424 s
->_raw_size
+= MIPS_FUNCTION_STUB_SIZE
;
8426 else if (! info
->shared
8427 && ! mips_elf_hash_table (info
)->use_rld_obj_head
8428 && strncmp (name
, ".rld_map", 8) == 0)
8430 /* We add a room for __rld_map. It will be filled in by the
8431 rtld to contain a pointer to the _r_debug structure. */
8434 else if (SGI_COMPAT (output_bfd
)
8435 && strncmp (name
, ".compact_rel", 12) == 0)
8436 s
->_raw_size
+= mips_elf_hash_table (info
)->compact_rel_size
;
8437 else if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (output_bfd
))
8439 s
->_raw_size
= (sizeof (Elf32_External_Msym
)
8440 * (elf_hash_table (info
)->dynsymcount
8441 + bfd_count_sections (output_bfd
)));
8442 else if (strncmp (name
, ".init", 5) != 0)
8444 /* It's not one of our sections, so don't allocate space. */
8450 _bfd_strip_section_from_output (info
, s
);
8454 /* Allocate memory for the section contents. */
8455 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
8456 if (s
->contents
== NULL
&& s
->_raw_size
!= 0)
8458 bfd_set_error (bfd_error_no_memory
);
8463 if (elf_hash_table (info
)->dynamic_sections_created
)
8465 /* Add some entries to the .dynamic section. We fill in the
8466 values later, in elf_mips_finish_dynamic_sections, but we
8467 must add the entries now so that we get the correct size for
8468 the .dynamic section. The DT_DEBUG entry is filled in by the
8469 dynamic linker and used by the debugger. */
8472 /* SGI object has the equivalence of DT_DEBUG in the
8473 DT_MIPS_RLD_MAP entry. */
8474 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_RLD_MAP
, 0))
8476 if (!SGI_COMPAT (output_bfd
))
8478 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_DEBUG
, 0))
8484 /* Shared libraries on traditional mips have DT_DEBUG. */
8485 if (!SGI_COMPAT (output_bfd
))
8487 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_DEBUG
, 0))
8492 if (reltext
&& SGI_COMPAT (output_bfd
))
8493 info
->flags
|= DF_TEXTREL
;
8495 if ((info
->flags
& DF_TEXTREL
) != 0)
8497 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_TEXTREL
, 0))
8501 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_PLTGOT
, 0))
8504 if (bfd_get_section_by_name (dynobj
,
8505 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
)))
8507 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_REL
, 0))
8510 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_RELSZ
, 0))
8513 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_RELENT
, 0))
8517 if (SGI_COMPAT (output_bfd
))
8519 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_CONFLICTNO
, 0))
8523 if (SGI_COMPAT (output_bfd
))
8525 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LIBLISTNO
, 0))
8529 if (bfd_get_section_by_name (dynobj
, ".conflict") != NULL
)
8531 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_CONFLICT
, 0))
8534 s
= bfd_get_section_by_name (dynobj
, ".liblist");
8535 BFD_ASSERT (s
!= NULL
);
8537 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LIBLIST
, 0))
8541 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_RLD_VERSION
, 0))
8544 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_FLAGS
, 0))
8548 /* Time stamps in executable files are a bad idea. */
8549 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_TIME_STAMP
, 0))
8554 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_ICHECKSUM
, 0))
8559 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_IVERSION
, 0))
8563 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_BASE_ADDRESS
, 0))
8566 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LOCAL_GOTNO
, 0))
8569 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_SYMTABNO
, 0))
8572 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_UNREFEXTNO
, 0))
8575 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_GOTSYM
, 0))
8578 if (IRIX_COMPAT (dynobj
) == ict_irix5
8579 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_HIPAGENO
, 0))
8582 if (IRIX_COMPAT (dynobj
) == ict_irix6
8583 && (bfd_get_section_by_name
8584 (dynobj
, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj
)))
8585 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_OPTIONS
, 0))
8588 if (bfd_get_section_by_name (dynobj
,
8589 MIPS_ELF_MSYM_SECTION_NAME (dynobj
))
8590 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_MSYM
, 0))
8597 /* If NAME is one of the special IRIX6 symbols defined by the linker,
8598 adjust it appropriately now. */
8601 mips_elf_irix6_finish_dynamic_symbol (abfd
, name
, sym
)
8602 bfd
*abfd ATTRIBUTE_UNUSED
;
8604 Elf_Internal_Sym
*sym
;
8606 /* The linker script takes care of providing names and values for
8607 these, but we must place them into the right sections. */
8608 static const char* const text_section_symbols
[] = {
8611 "__dso_displacement",
8613 "__program_header_table",
8617 static const char* const data_section_symbols
[] = {
8625 const char* const *p
;
8628 for (i
= 0; i
< 2; ++i
)
8629 for (p
= (i
== 0) ? text_section_symbols
: data_section_symbols
;
8632 if (strcmp (*p
, name
) == 0)
8634 /* All of these symbols are given type STT_SECTION by the
8636 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8638 /* The IRIX linker puts these symbols in special sections. */
8640 sym
->st_shndx
= SHN_MIPS_TEXT
;
8642 sym
->st_shndx
= SHN_MIPS_DATA
;
8648 /* Finish up dynamic symbol handling. We set the contents of various
8649 dynamic sections here. */
8652 _bfd_mips_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8654 struct bfd_link_info
*info
;
8655 struct elf_link_hash_entry
*h
;
8656 Elf_Internal_Sym
*sym
;
8662 struct mips_got_info
*g
;
8664 struct mips_elf_link_hash_entry
*mh
;
8666 dynobj
= elf_hash_table (info
)->dynobj
;
8667 gval
= sym
->st_value
;
8668 mh
= (struct mips_elf_link_hash_entry
*) h
;
8670 if (h
->plt
.offset
!= (bfd_vma
) -1)
8674 bfd_byte stub
[MIPS_FUNCTION_STUB_SIZE
];
8676 /* This symbol has a stub. Set it up. */
8678 BFD_ASSERT (h
->dynindx
!= -1);
8680 s
= bfd_get_section_by_name (dynobj
,
8681 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
8682 BFD_ASSERT (s
!= NULL
);
8684 /* Fill the stub. */
8686 bfd_put_32 (output_bfd
, STUB_LW (output_bfd
), p
);
8688 bfd_put_32 (output_bfd
, STUB_MOVE (output_bfd
), p
);
8691 /* FIXME: Can h->dynindex be more than 64K? */
8692 if (h
->dynindx
& 0xffff0000)
8695 bfd_put_32 (output_bfd
, STUB_JALR
, p
);
8697 bfd_put_32 (output_bfd
, STUB_LI16 (output_bfd
) + h
->dynindx
, p
);
8699 BFD_ASSERT (h
->plt
.offset
<= s
->_raw_size
);
8700 memcpy (s
->contents
+ h
->plt
.offset
, stub
, MIPS_FUNCTION_STUB_SIZE
);
8702 /* Mark the symbol as undefined. plt.offset != -1 occurs
8703 only for the referenced symbol. */
8704 sym
->st_shndx
= SHN_UNDEF
;
8706 /* The run-time linker uses the st_value field of the symbol
8707 to reset the global offset table entry for this external
8708 to its stub address when unlinking a shared object. */
8709 gval
= s
->output_section
->vma
+ s
->output_offset
+ h
->plt
.offset
;
8710 sym
->st_value
= gval
;
8713 BFD_ASSERT (h
->dynindx
!= -1
8714 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0);
8716 sgot
= mips_elf_got_section (dynobj
);
8717 BFD_ASSERT (sgot
!= NULL
);
8718 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
8719 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
8720 BFD_ASSERT (g
!= NULL
);
8722 /* Run through the global symbol table, creating GOT entries for all
8723 the symbols that need them. */
8724 if (g
->global_gotsym
!= NULL
8725 && h
->dynindx
>= g
->global_gotsym
->dynindx
)
8731 value
= sym
->st_value
;
8734 /* For an entity defined in a shared object, this will be
8735 NULL. (For functions in shared objects for
8736 which we have created stubs, ST_VALUE will be non-NULL.
8737 That's because such the functions are now no longer defined
8738 in a shared object.) */
8740 if (info
->shared
&& h
->root
.type
== bfd_link_hash_undefined
)
8743 value
= h
->root
.u
.def
.value
;
8745 offset
= mips_elf_global_got_index (dynobj
, h
);
8746 MIPS_ELF_PUT_WORD (output_bfd
, value
, sgot
->contents
+ offset
);
8749 /* Create a .msym entry, if appropriate. */
8750 smsym
= bfd_get_section_by_name (dynobj
,
8751 MIPS_ELF_MSYM_SECTION_NAME (dynobj
));
8754 Elf32_Internal_Msym msym
;
8756 msym
.ms_hash_value
= bfd_elf_hash (h
->root
.root
.string
);
8757 /* It is undocumented what the `1' indicates, but IRIX6 uses
8759 msym
.ms_info
= ELF32_MS_INFO (mh
->min_dyn_reloc_index
, 1);
8760 bfd_mips_elf_swap_msym_out
8762 ((Elf32_External_Msym
*) smsym
->contents
) + h
->dynindx
);
8765 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
8766 name
= h
->root
.root
.string
;
8767 if (strcmp (name
, "_DYNAMIC") == 0
8768 || strcmp (name
, "_GLOBAL_OFFSET_TABLE_") == 0)
8769 sym
->st_shndx
= SHN_ABS
;
8770 else if (strcmp (name
, "_DYNAMIC_LINK") == 0
8771 || strcmp (name
, "_DYNAMIC_LINKING") == 0)
8773 sym
->st_shndx
= SHN_ABS
;
8774 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8777 else if (strcmp (name
, "_gp_disp") == 0)
8779 sym
->st_shndx
= SHN_ABS
;
8780 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8781 sym
->st_value
= elf_gp (output_bfd
);
8783 else if (SGI_COMPAT (output_bfd
))
8785 if (strcmp (name
, mips_elf_dynsym_rtproc_names
[0]) == 0
8786 || strcmp (name
, mips_elf_dynsym_rtproc_names
[1]) == 0)
8788 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8789 sym
->st_other
= STO_PROTECTED
;
8791 sym
->st_shndx
= SHN_MIPS_DATA
;
8793 else if (strcmp (name
, mips_elf_dynsym_rtproc_names
[2]) == 0)
8795 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8796 sym
->st_other
= STO_PROTECTED
;
8797 sym
->st_value
= mips_elf_hash_table (info
)->procedure_count
;
8798 sym
->st_shndx
= SHN_ABS
;
8800 else if (sym
->st_shndx
!= SHN_UNDEF
&& sym
->st_shndx
!= SHN_ABS
)
8802 if (h
->type
== STT_FUNC
)
8803 sym
->st_shndx
= SHN_MIPS_TEXT
;
8804 else if (h
->type
== STT_OBJECT
)
8805 sym
->st_shndx
= SHN_MIPS_DATA
;
8809 /* Handle the IRIX6-specific symbols. */
8810 if (IRIX_COMPAT (output_bfd
) == ict_irix6
)
8811 mips_elf_irix6_finish_dynamic_symbol (output_bfd
, name
, sym
);
8815 if (! mips_elf_hash_table (info
)->use_rld_obj_head
8816 && (strcmp (name
, "__rld_map") == 0
8817 || strcmp (name
, "__RLD_MAP") == 0))
8819 asection
*s
= bfd_get_section_by_name (dynobj
, ".rld_map");
8820 BFD_ASSERT (s
!= NULL
);
8821 sym
->st_value
= s
->output_section
->vma
+ s
->output_offset
;
8822 bfd_put_32 (output_bfd
, (bfd_vma
) 0, s
->contents
);
8823 if (mips_elf_hash_table (info
)->rld_value
== 0)
8824 mips_elf_hash_table (info
)->rld_value
= sym
->st_value
;
8826 else if (mips_elf_hash_table (info
)->use_rld_obj_head
8827 && strcmp (name
, "__rld_obj_head") == 0)
8829 /* IRIX6 does not use a .rld_map section. */
8830 if (IRIX_COMPAT (output_bfd
) == ict_irix5
8831 || IRIX_COMPAT (output_bfd
) == ict_none
)
8832 BFD_ASSERT (bfd_get_section_by_name (dynobj
, ".rld_map")
8834 mips_elf_hash_table (info
)->rld_value
= sym
->st_value
;
8838 /* If this is a mips16 symbol, force the value to be even. */
8839 if (sym
->st_other
== STO_MIPS16
8840 && (sym
->st_value
& 1) != 0)
8846 /* Finish up the dynamic sections. */
8849 _bfd_mips_elf_finish_dynamic_sections (output_bfd
, info
)
8851 struct bfd_link_info
*info
;
8856 struct mips_got_info
*g
;
8858 dynobj
= elf_hash_table (info
)->dynobj
;
8860 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8862 sgot
= mips_elf_got_section (dynobj
);
8867 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
8868 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
8869 BFD_ASSERT (g
!= NULL
);
8872 if (elf_hash_table (info
)->dynamic_sections_created
)
8876 BFD_ASSERT (sdyn
!= NULL
);
8877 BFD_ASSERT (g
!= NULL
);
8879 for (b
= sdyn
->contents
;
8880 b
< sdyn
->contents
+ sdyn
->_raw_size
;
8881 b
+= MIPS_ELF_DYN_SIZE (dynobj
))
8883 Elf_Internal_Dyn dyn
;
8889 /* Read in the current dynamic entry. */
8890 (*get_elf_backend_data (dynobj
)->s
->swap_dyn_in
) (dynobj
, b
, &dyn
);
8892 /* Assume that we're going to modify it and write it out. */
8898 s
= (bfd_get_section_by_name
8900 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
)));
8901 BFD_ASSERT (s
!= NULL
);
8902 dyn
.d_un
.d_val
= MIPS_ELF_REL_SIZE (dynobj
);
8906 /* Rewrite DT_STRSZ. */
8908 _bfd_stringtab_size (elf_hash_table (info
)->dynstr
);
8914 case DT_MIPS_CONFLICT
:
8917 case DT_MIPS_LIBLIST
:
8920 s
= bfd_get_section_by_name (output_bfd
, name
);
8921 BFD_ASSERT (s
!= NULL
);
8922 dyn
.d_un
.d_ptr
= s
->vma
;
8925 case DT_MIPS_RLD_VERSION
:
8926 dyn
.d_un
.d_val
= 1; /* XXX */
8930 dyn
.d_un
.d_val
= RHF_NOTPOT
; /* XXX */
8933 case DT_MIPS_CONFLICTNO
:
8935 elemsize
= sizeof (Elf32_Conflict
);
8938 case DT_MIPS_LIBLISTNO
:
8940 elemsize
= sizeof (Elf32_Lib
);
8942 s
= bfd_get_section_by_name (output_bfd
, name
);
8945 if (s
->_cooked_size
!= 0)
8946 dyn
.d_un
.d_val
= s
->_cooked_size
/ elemsize
;
8948 dyn
.d_un
.d_val
= s
->_raw_size
/ elemsize
;
8954 case DT_MIPS_TIME_STAMP
:
8955 time ((time_t *) &dyn
.d_un
.d_val
);
8958 case DT_MIPS_ICHECKSUM
:
8963 case DT_MIPS_IVERSION
:
8968 case DT_MIPS_BASE_ADDRESS
:
8969 s
= output_bfd
->sections
;
8970 BFD_ASSERT (s
!= NULL
);
8971 dyn
.d_un
.d_ptr
= s
->vma
& ~(0xffff);
8974 case DT_MIPS_LOCAL_GOTNO
:
8975 dyn
.d_un
.d_val
= g
->local_gotno
;
8978 case DT_MIPS_UNREFEXTNO
:
8979 /* The index into the dynamic symbol table which is the
8980 entry of the first external symbol that is not
8981 referenced within the same object. */
8982 dyn
.d_un
.d_val
= bfd_count_sections (output_bfd
) + 1;
8985 case DT_MIPS_GOTSYM
:
8986 if (g
->global_gotsym
)
8988 dyn
.d_un
.d_val
= g
->global_gotsym
->dynindx
;
8991 /* In case if we don't have global got symbols we default
8992 to setting DT_MIPS_GOTSYM to the same value as
8993 DT_MIPS_SYMTABNO, so we just fall through. */
8995 case DT_MIPS_SYMTABNO
:
8997 elemsize
= MIPS_ELF_SYM_SIZE (output_bfd
);
8998 s
= bfd_get_section_by_name (output_bfd
, name
);
8999 BFD_ASSERT (s
!= NULL
);
9001 if (s
->_cooked_size
!= 0)
9002 dyn
.d_un
.d_val
= s
->_cooked_size
/ elemsize
;
9004 dyn
.d_un
.d_val
= s
->_raw_size
/ elemsize
;
9007 case DT_MIPS_HIPAGENO
:
9008 dyn
.d_un
.d_val
= g
->local_gotno
- MIPS_RESERVED_GOTNO
;
9011 case DT_MIPS_RLD_MAP
:
9012 dyn
.d_un
.d_ptr
= mips_elf_hash_table (info
)->rld_value
;
9015 case DT_MIPS_OPTIONS
:
9016 s
= (bfd_get_section_by_name
9017 (output_bfd
, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd
)));
9018 dyn
.d_un
.d_ptr
= s
->vma
;
9022 s
= (bfd_get_section_by_name
9023 (output_bfd
, MIPS_ELF_MSYM_SECTION_NAME (output_bfd
)));
9024 dyn
.d_un
.d_ptr
= s
->vma
;
9033 (*get_elf_backend_data (dynobj
)->s
->swap_dyn_out
)
9038 /* The first entry of the global offset table will be filled at
9039 runtime. The second entry will be used by some runtime loaders.
9040 This isn't the case of Irix rld. */
9041 if (sgot
!= NULL
&& sgot
->_raw_size
> 0)
9043 MIPS_ELF_PUT_WORD (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
9044 MIPS_ELF_PUT_WORD (output_bfd
, (bfd_vma
) 0x80000000,
9045 sgot
->contents
+ MIPS_ELF_GOT_SIZE (output_bfd
));
9049 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
9050 = MIPS_ELF_GOT_SIZE (output_bfd
);
9055 Elf32_compact_rel cpt
;
9057 /* ??? The section symbols for the output sections were set up in
9058 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9059 symbols. Should we do so? */
9061 smsym
= bfd_get_section_by_name (dynobj
,
9062 MIPS_ELF_MSYM_SECTION_NAME (dynobj
));
9065 Elf32_Internal_Msym msym
;
9067 msym
.ms_hash_value
= 0;
9068 msym
.ms_info
= ELF32_MS_INFO (0, 1);
9070 for (s
= output_bfd
->sections
; s
!= NULL
; s
= s
->next
)
9072 long dynindx
= elf_section_data (s
)->dynindx
;
9074 bfd_mips_elf_swap_msym_out
9076 (((Elf32_External_Msym
*) smsym
->contents
)
9081 if (SGI_COMPAT (output_bfd
))
9083 /* Write .compact_rel section out. */
9084 s
= bfd_get_section_by_name (dynobj
, ".compact_rel");
9088 cpt
.num
= s
->reloc_count
;
9090 cpt
.offset
= (s
->output_section
->filepos
9091 + sizeof (Elf32_External_compact_rel
));
9094 bfd_elf32_swap_compact_rel_out (output_bfd
, &cpt
,
9095 ((Elf32_External_compact_rel
*)
9098 /* Clean up a dummy stub function entry in .text. */
9099 s
= bfd_get_section_by_name (dynobj
,
9100 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
9103 file_ptr dummy_offset
;
9105 BFD_ASSERT (s
->_raw_size
>= MIPS_FUNCTION_STUB_SIZE
);
9106 dummy_offset
= s
->_raw_size
- MIPS_FUNCTION_STUB_SIZE
;
9107 memset (s
->contents
+ dummy_offset
, 0,
9108 MIPS_FUNCTION_STUB_SIZE
);
9113 /* We need to sort the entries of the dynamic relocation section. */
9115 if (!ABI_64_P (output_bfd
))
9119 reldyn
= bfd_get_section_by_name (dynobj
,
9120 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
));
9121 if (reldyn
!= NULL
&& reldyn
->reloc_count
> 2)
9123 reldyn_sorting_bfd
= output_bfd
;
9124 qsort ((Elf32_External_Rel
*) reldyn
->contents
+ 1,
9125 (size_t) reldyn
->reloc_count
- 1,
9126 sizeof (Elf32_External_Rel
), sort_dynamic_relocs
);
9130 /* Clean up a first relocation in .rel.dyn. */
9131 s
= bfd_get_section_by_name (dynobj
,
9132 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
));
9133 if (s
!= NULL
&& s
->_raw_size
> 0)
9134 memset (s
->contents
, 0, MIPS_ELF_REL_SIZE (dynobj
));
9140 /* Support for core dump NOTE sections */
9142 _bfd_elf32_mips_grok_prstatus (abfd
, note
)
9144 Elf_Internal_Note
*note
;
9149 switch (note
->descsz
)
9154 case 256: /* Linux/MIPS */
9156 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
9159 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
9168 /* Make a ".reg/999" section. */
9169 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
9170 raw_size
, note
->descpos
+ offset
);
9173 static boolean
_bfd_elf32_mips_grok_psinfo (abfd
, note
)
9175 Elf_Internal_Note
*note
;
9177 switch (note
->descsz
)
9182 case 128: /* Linux/MIPS elf_prpsinfo */
9183 elf_tdata (abfd
)->core_program
9184 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 32, 16);
9185 elf_tdata (abfd
)->core_command
9186 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 48, 80);
9189 /* Note that for some reason, a spurious space is tacked
9190 onto the end of the args in some (at least one anyway)
9191 implementations, so strip it off if it exists. */
9194 char *command
= elf_tdata (abfd
)->core_command
;
9195 int n
= strlen (command
);
9197 if (0 < n
&& command
[n
- 1] == ' ')
9198 command
[n
- 1] = '\0';
9204 /* This is almost identical to bfd_generic_get_... except that some
9205 MIPS relocations need to be handled specially. Sigh. */
9208 elf32_mips_get_relocated_section_contents (abfd
, link_info
, link_order
, data
,
9209 relocateable
, symbols
)
9211 struct bfd_link_info
*link_info
;
9212 struct bfd_link_order
*link_order
;
9214 boolean relocateable
;
9217 /* Get enough memory to hold the stuff */
9218 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
9219 asection
*input_section
= link_order
->u
.indirect
.section
;
9221 long reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
9222 arelent
**reloc_vector
= NULL
;
9228 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
9229 if (reloc_vector
== NULL
&& reloc_size
!= 0)
9232 /* read in the section */
9233 if (!bfd_get_section_contents (input_bfd
,
9237 input_section
->_raw_size
))
9240 /* We're not relaxing the section, so just copy the size info */
9241 input_section
->_cooked_size
= input_section
->_raw_size
;
9242 input_section
->reloc_done
= true;
9244 reloc_count
= bfd_canonicalize_reloc (input_bfd
,
9248 if (reloc_count
< 0)
9251 if (reloc_count
> 0)
9256 bfd_vma gp
= 0x12345678; /* initialize just to shut gcc up */
9259 struct bfd_hash_entry
*h
;
9260 struct bfd_link_hash_entry
*lh
;
9261 /* Skip all this stuff if we aren't mixing formats. */
9262 if (abfd
&& input_bfd
9263 && abfd
->xvec
== input_bfd
->xvec
)
9267 h
= bfd_hash_lookup (&link_info
->hash
->table
, "_gp", false, false);
9268 lh
= (struct bfd_link_hash_entry
*) h
;
9275 case bfd_link_hash_undefined
:
9276 case bfd_link_hash_undefweak
:
9277 case bfd_link_hash_common
:
9280 case bfd_link_hash_defined
:
9281 case bfd_link_hash_defweak
:
9283 gp
= lh
->u
.def
.value
;
9285 case bfd_link_hash_indirect
:
9286 case bfd_link_hash_warning
:
9288 /* @@FIXME ignoring warning for now */
9290 case bfd_link_hash_new
:
9299 for (parent
= reloc_vector
; *parent
!= (arelent
*) NULL
;
9302 char *error_message
= (char *) NULL
;
9303 bfd_reloc_status_type r
;
9305 /* Specific to MIPS: Deal with relocation types that require
9306 knowing the gp of the output bfd. */
9307 asymbol
*sym
= *(*parent
)->sym_ptr_ptr
;
9308 if (bfd_is_abs_section (sym
->section
) && abfd
)
9310 /* The special_function wouldn't get called anyways. */
9314 /* The gp isn't there; let the special function code
9315 fall over on its own. */
9317 else if ((*parent
)->howto
->special_function
9318 == _bfd_mips_elf_gprel16_reloc
)
9320 /* bypass special_function call */
9321 r
= gprel16_with_gp (input_bfd
, sym
, *parent
, input_section
,
9322 relocateable
, (PTR
) data
, gp
);
9323 goto skip_bfd_perform_relocation
;
9325 /* end mips specific stuff */
9327 r
= bfd_perform_relocation (input_bfd
,
9331 relocateable
? abfd
: (bfd
*) NULL
,
9333 skip_bfd_perform_relocation
:
9337 asection
*os
= input_section
->output_section
;
9339 /* A partial link, so keep the relocs */
9340 os
->orelocation
[os
->reloc_count
] = *parent
;
9344 if (r
!= bfd_reloc_ok
)
9348 case bfd_reloc_undefined
:
9349 if (!((*link_info
->callbacks
->undefined_symbol
)
9350 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
9351 input_bfd
, input_section
, (*parent
)->address
,
9355 case bfd_reloc_dangerous
:
9356 BFD_ASSERT (error_message
!= (char *) NULL
);
9357 if (!((*link_info
->callbacks
->reloc_dangerous
)
9358 (link_info
, error_message
, input_bfd
, input_section
,
9359 (*parent
)->address
)))
9362 case bfd_reloc_overflow
:
9363 if (!((*link_info
->callbacks
->reloc_overflow
)
9364 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
9365 (*parent
)->howto
->name
, (*parent
)->addend
,
9366 input_bfd
, input_section
, (*parent
)->address
)))
9369 case bfd_reloc_outofrange
:
9378 if (reloc_vector
!= NULL
)
9379 free (reloc_vector
);
9383 if (reloc_vector
!= NULL
)
9384 free (reloc_vector
);
9388 #define bfd_elf32_bfd_get_relocated_section_contents \
9389 elf32_mips_get_relocated_section_contents
9391 /* ECOFF swapping routines. These are used when dealing with the
9392 .mdebug section, which is in the ECOFF debugging format. */
9393 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap
= {
9394 /* Symbol table magic number. */
9396 /* Alignment of debugging information. E.g., 4. */
9398 /* Sizes of external symbolic information. */
9399 sizeof (struct hdr_ext
),
9400 sizeof (struct dnr_ext
),
9401 sizeof (struct pdr_ext
),
9402 sizeof (struct sym_ext
),
9403 sizeof (struct opt_ext
),
9404 sizeof (struct fdr_ext
),
9405 sizeof (struct rfd_ext
),
9406 sizeof (struct ext_ext
),
9407 /* Functions to swap in external symbolic data. */
9416 _bfd_ecoff_swap_tir_in
,
9417 _bfd_ecoff_swap_rndx_in
,
9418 /* Functions to swap out external symbolic data. */
9427 _bfd_ecoff_swap_tir_out
,
9428 _bfd_ecoff_swap_rndx_out
,
9429 /* Function to read in symbolic data. */
9430 _bfd_mips_elf_read_ecoff_info
9433 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
9434 #define TARGET_LITTLE_NAME "elf32-littlemips"
9435 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
9436 #define TARGET_BIG_NAME "elf32-bigmips"
9437 #define ELF_ARCH bfd_arch_mips
9438 #define ELF_MACHINE_CODE EM_MIPS
9440 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
9441 a value of 0x1000, and we are compatible. */
9442 #define ELF_MAXPAGESIZE 0x1000
9444 #define elf_backend_collect true
9445 #define elf_backend_type_change_ok true
9446 #define elf_backend_can_gc_sections true
9447 #define elf_backend_sign_extend_vma true
9448 #define elf_info_to_howto mips_info_to_howto_rela
9449 #define elf_info_to_howto_rel mips_info_to_howto_rel
9450 #define elf_backend_sym_is_global mips_elf_sym_is_global
9451 #define elf_backend_object_p _bfd_mips_elf_object_p
9452 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
9453 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
9454 #define elf_backend_section_from_bfd_section \
9455 _bfd_mips_elf_section_from_bfd_section
9456 #define elf_backend_section_processing _bfd_mips_elf_section_processing
9457 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
9458 #define elf_backend_additional_program_headers \
9459 _bfd_mips_elf_additional_program_headers
9460 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
9461 #define elf_backend_final_write_processing \
9462 _bfd_mips_elf_final_write_processing
9463 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
9464 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
9465 #define elf_backend_create_dynamic_sections \
9466 _bfd_mips_elf_create_dynamic_sections
9467 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
9468 #define elf_backend_adjust_dynamic_symbol \
9469 _bfd_mips_elf_adjust_dynamic_symbol
9470 #define elf_backend_always_size_sections \
9471 _bfd_mips_elf_always_size_sections
9472 #define elf_backend_size_dynamic_sections \
9473 _bfd_mips_elf_size_dynamic_sections
9474 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
9475 #define elf_backend_link_output_symbol_hook \
9476 _bfd_mips_elf_link_output_symbol_hook
9477 #define elf_backend_finish_dynamic_symbol \
9478 _bfd_mips_elf_finish_dynamic_symbol
9479 #define elf_backend_finish_dynamic_sections \
9480 _bfd_mips_elf_finish_dynamic_sections
9481 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
9482 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
9484 #define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO)
9485 #define elf_backend_plt_header_size 0
9487 #define elf_backend_copy_indirect_symbol \
9488 _bfd_mips_elf_copy_indirect_symbol
9490 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
9491 #define elf_backend_grok_prstatus _bfd_elf32_mips_grok_prstatus
9492 #define elf_backend_grok_psinfo _bfd_elf32_mips_grok_psinfo
9494 #define bfd_elf32_bfd_is_local_label_name \
9495 mips_elf_is_local_label_name
9496 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
9497 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
9498 #define bfd_elf32_bfd_link_hash_table_create \
9499 _bfd_mips_elf_link_hash_table_create
9500 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
9501 #define bfd_elf32_bfd_copy_private_bfd_data \
9502 _bfd_mips_elf_copy_private_bfd_data
9503 #define bfd_elf32_bfd_merge_private_bfd_data \
9504 _bfd_mips_elf_merge_private_bfd_data
9505 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
9506 #define bfd_elf32_bfd_print_private_bfd_data \
9507 _bfd_mips_elf_print_private_bfd_data
9508 #include "elf32-target.h"
9510 /* Support for traditional mips targets */
9512 #define INCLUDED_TARGET_FILE /* More a type of flag */
9514 #undef TARGET_LITTLE_SYM
9515 #undef TARGET_LITTLE_NAME
9516 #undef TARGET_BIG_SYM
9517 #undef TARGET_BIG_NAME
9519 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
9520 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
9521 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
9522 #define TARGET_BIG_NAME "elf32-tradbigmips"
9524 /* Include the target file again for this target */
9525 #include "elf32-target.h"