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 /* The index of the first dynamic relocation (in the .rel.dyn
80 section) against this symbol. */
81 unsigned int min_dyn_reloc_index
;
83 /* We must not create a stub for a symbol that has relocations
84 related to taking the function's address, i.e. any but
85 R_MIPS_CALL*16 ones -- see "MIPS ABI Supplement, 3rd Edition",
89 /* If there is a stub that 32 bit functions should use to call this
90 16 bit function, this points to the section containing the stub. */
93 /* Whether we need the fn_stub; this is set if this symbol appears
94 in any relocs other than a 16 bit call. */
97 /* If there is a stub that 16 bit functions should use to call this
98 32 bit function, this points to the section containing the stub. */
101 /* This is like the call_stub field, but it is used if the function
102 being called returns a floating point value. */
103 asection
*call_fp_stub
;
106 static bfd_reloc_status_type mips32_64bit_reloc
107 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
108 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_lookup
109 PARAMS ((bfd
*, bfd_reloc_code_real_type
));
110 static reloc_howto_type
*mips_rtype_to_howto
111 PARAMS ((unsigned int));
112 static void mips_info_to_howto_rel
113 PARAMS ((bfd
*, arelent
*, Elf32_Internal_Rel
*));
114 static void mips_info_to_howto_rela
115 PARAMS ((bfd
*, arelent
*, Elf32_Internal_Rela
*));
116 static void bfd_mips_elf32_swap_gptab_in
117 PARAMS ((bfd
*, const Elf32_External_gptab
*, Elf32_gptab
*));
118 static void bfd_mips_elf32_swap_gptab_out
119 PARAMS ((bfd
*, const Elf32_gptab
*, Elf32_External_gptab
*));
121 static void bfd_mips_elf_swap_msym_in
122 PARAMS ((bfd
*, const Elf32_External_Msym
*, Elf32_Internal_Msym
*));
124 static void bfd_mips_elf_swap_msym_out
125 PARAMS ((bfd
*, const Elf32_Internal_Msym
*, Elf32_External_Msym
*));
126 static boolean mips_elf_sym_is_global
PARAMS ((bfd
*, asymbol
*));
127 static boolean mips_elf_create_procedure_table
128 PARAMS ((PTR
, bfd
*, struct bfd_link_info
*, asection
*,
129 struct ecoff_debug_info
*));
130 static INLINE
int elf_mips_isa
PARAMS ((flagword
));
131 static INLINE
int elf_mips_mach
PARAMS ((flagword
));
132 static INLINE
char* elf_mips_abi_name
PARAMS ((bfd
*));
133 static boolean mips_elf_is_local_label_name
134 PARAMS ((bfd
*, const char *));
135 static struct bfd_hash_entry
*mips_elf_link_hash_newfunc
136 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
137 static int gptab_compare
PARAMS ((const void *, const void *));
138 static bfd_reloc_status_type mips16_jump_reloc
139 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
140 static bfd_reloc_status_type mips16_gprel_reloc
141 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
142 static boolean mips_elf_create_compact_rel_section
143 PARAMS ((bfd
*, struct bfd_link_info
*));
144 static boolean mips_elf_create_got_section
145 PARAMS ((bfd
*, struct bfd_link_info
*));
146 static bfd_reloc_status_type mips_elf_final_gp
147 PARAMS ((bfd
*, asymbol
*, boolean
, char **, bfd_vma
*));
148 static bfd_byte
*elf32_mips_get_relocated_section_contents
149 PARAMS ((bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
150 bfd_byte
*, boolean
, asymbol
**));
151 static asection
*mips_elf_create_msym_section
153 static void mips_elf_irix6_finish_dynamic_symbol
154 PARAMS ((bfd
*, const char *, Elf_Internal_Sym
*));
155 static bfd_vma mips_elf_sign_extend
PARAMS ((bfd_vma
, int));
156 static boolean mips_elf_overflow_p
PARAMS ((bfd_vma
, int));
157 static bfd_vma mips_elf_high
PARAMS ((bfd_vma
));
158 static bfd_vma mips_elf_higher
PARAMS ((bfd_vma
));
159 static bfd_vma mips_elf_highest
PARAMS ((bfd_vma
));
160 static bfd_vma mips_elf_global_got_index
161 PARAMS ((bfd
*, struct elf_link_hash_entry
*));
162 static bfd_vma mips_elf_local_got_index
163 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
));
164 static bfd_vma mips_elf_got_offset_from_index
165 PARAMS ((bfd
*, bfd
*, bfd_vma
));
166 static boolean mips_elf_record_global_got_symbol
167 PARAMS ((struct elf_link_hash_entry
*, struct bfd_link_info
*,
168 struct mips_got_info
*));
169 static bfd_vma mips_elf_got_page
170 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
, bfd_vma
*));
171 static const Elf_Internal_Rela
*mips_elf_next_relocation
172 PARAMS ((unsigned int, const Elf_Internal_Rela
*,
173 const Elf_Internal_Rela
*));
174 static bfd_reloc_status_type mips_elf_calculate_relocation
175 PARAMS ((bfd
*, bfd
*, asection
*, struct bfd_link_info
*,
176 const Elf_Internal_Rela
*, bfd_vma
, reloc_howto_type
*,
177 Elf_Internal_Sym
*, asection
**, bfd_vma
*, const char **,
179 static bfd_vma mips_elf_obtain_contents
180 PARAMS ((reloc_howto_type
*, const Elf_Internal_Rela
*, bfd
*, bfd_byte
*));
181 static boolean mips_elf_perform_relocation
182 PARAMS ((struct bfd_link_info
*, reloc_howto_type
*,
183 const Elf_Internal_Rela
*, bfd_vma
,
184 bfd
*, asection
*, bfd_byte
*, boolean
));
185 static boolean mips_elf_assign_gp
PARAMS ((bfd
*, bfd_vma
*));
186 static boolean mips_elf_sort_hash_table_f
187 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
188 static boolean mips_elf_sort_hash_table
189 PARAMS ((struct bfd_link_info
*, unsigned long));
190 static asection
* mips_elf_got_section
PARAMS ((bfd
*));
191 static struct mips_got_info
*mips_elf_got_info
192 PARAMS ((bfd
*, asection
**));
193 static boolean mips_elf_local_relocation_p
194 PARAMS ((bfd
*, const Elf_Internal_Rela
*, asection
**, boolean
));
195 static bfd_vma mips_elf_create_local_got_entry
196 PARAMS ((bfd
*, struct mips_got_info
*, asection
*, bfd_vma
));
197 static bfd_vma mips_elf_got16_entry
198 PARAMS ((bfd
*, struct bfd_link_info
*, bfd_vma
, boolean
));
199 static boolean mips_elf_create_dynamic_relocation
200 PARAMS ((bfd
*, struct bfd_link_info
*, const Elf_Internal_Rela
*,
201 struct mips_elf_link_hash_entry
*, asection
*,
202 bfd_vma
, bfd_vma
*, asection
*));
203 static void mips_elf_allocate_dynamic_relocations
204 PARAMS ((bfd
*, unsigned int));
205 static boolean mips_elf_stub_section_p
206 PARAMS ((bfd
*, asection
*));
207 static int sort_dynamic_relocs
208 PARAMS ((const void *, const void *));
210 extern const bfd_target bfd_elf32_tradbigmips_vec
;
211 extern const bfd_target bfd_elf32_tradlittlemips_vec
;
213 extern const bfd_target bfd_elf64_tradbigmips_vec
;
214 extern const bfd_target bfd_elf64_tradlittlemips_vec
;
217 /* The level of IRIX compatibility we're striving for. */
225 /* This will be used when we sort the dynamic relocation records. */
226 static bfd
*reldyn_sorting_bfd
;
228 /* Nonzero if ABFD is using the N32 ABI. */
230 #define ABI_N32_P(abfd) \
231 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
233 /* Nonzero if ABFD is using the 64-bit ABI. */
234 #define ABI_64_P(abfd) \
235 ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0)
237 /* Depending on the target vector we generate some version of Irix
238 executables or "normal" MIPS ELF ABI executables. */
240 #define IRIX_COMPAT(abfd) \
241 (((abfd->xvec == &bfd_elf64_tradbigmips_vec) || \
242 (abfd->xvec == &bfd_elf64_tradlittlemips_vec) || \
243 (abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
244 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
245 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
247 #define IRIX_COMPAT(abfd) \
248 (((abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
249 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
250 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
252 /* Whether we are trying to be compatible with IRIX at all. */
254 #define SGI_COMPAT(abfd) \
255 (IRIX_COMPAT (abfd) != ict_none)
257 /* The name of the msym section. */
258 #define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym"
260 /* The name of the srdata section. */
261 #define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata"
263 /* The name of the options section. */
264 #define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \
265 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options")
267 /* The name of the stub section. */
268 #define MIPS_ELF_STUB_SECTION_NAME(abfd) \
269 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub")
271 /* The name of the dynamic relocation section. */
272 #define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn"
274 /* The size of an external REL relocation. */
275 #define MIPS_ELF_REL_SIZE(abfd) \
276 (get_elf_backend_data (abfd)->s->sizeof_rel)
278 /* The size of an external dynamic table entry. */
279 #define MIPS_ELF_DYN_SIZE(abfd) \
280 (get_elf_backend_data (abfd)->s->sizeof_dyn)
282 /* The size of a GOT entry. */
283 #define MIPS_ELF_GOT_SIZE(abfd) \
284 (get_elf_backend_data (abfd)->s->arch_size / 8)
286 /* The size of a symbol-table entry. */
287 #define MIPS_ELF_SYM_SIZE(abfd) \
288 (get_elf_backend_data (abfd)->s->sizeof_sym)
290 /* The default alignment for sections, as a power of two. */
291 #define MIPS_ELF_LOG_FILE_ALIGN(abfd) \
292 (get_elf_backend_data (abfd)->s->file_align == 8 ? 3 : 2)
294 /* Get word-sized data. */
295 #define MIPS_ELF_GET_WORD(abfd, ptr) \
296 (ABI_64_P (abfd) ? bfd_get_64 (abfd, ptr) : bfd_get_32 (abfd, ptr))
298 /* Put out word-sized data. */
299 #define MIPS_ELF_PUT_WORD(abfd, val, ptr) \
301 ? bfd_put_64 (abfd, val, ptr) \
302 : bfd_put_32 (abfd, val, ptr))
304 /* Add a dynamic symbol table-entry. */
306 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
307 (ABI_64_P (elf_hash_table (info)->dynobj) \
308 ? bfd_elf64_add_dynamic_entry (info, tag, val) \
309 : bfd_elf32_add_dynamic_entry (info, tag, val))
311 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
312 (ABI_64_P (elf_hash_table (info)->dynobj) \
313 ? (abort (), false) \
314 : bfd_elf32_add_dynamic_entry (info, tag, val))
317 /* The number of local .got entries we reserve. */
318 #define MIPS_RESERVED_GOTNO (2)
320 /* Instructions which appear in a stub. For some reason the stub is
321 slightly different on an SGI system. */
322 #define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000)
323 #define STUB_LW(abfd) \
326 ? 0xdf998010 /* ld t9,0x8010(gp) */ \
327 : 0x8f998010) /* lw t9,0x8010(gp) */ \
328 : 0x8f998010) /* lw t9,0x8000(gp) */
329 #define STUB_MOVE(abfd) \
330 (SGI_COMPAT (abfd) ? 0x03e07825 : 0x03e07821) /* move t7,ra */
331 #define STUB_JALR 0x0320f809 /* jal t9 */
332 #define STUB_LI16(abfd) \
333 (SGI_COMPAT (abfd) ? 0x34180000 : 0x24180000) /* ori t8,zero,0 */
334 #define MIPS_FUNCTION_STUB_SIZE (16)
337 /* We no longer try to identify particular sections for the .dynsym
338 section. When we do, we wind up crashing if there are other random
339 sections with relocations. */
341 /* Names of sections which appear in the .dynsym section in an Irix 5
344 static const char * const mips_elf_dynsym_sec_names
[] =
357 #define SIZEOF_MIPS_DYNSYM_SECNAMES \
358 (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0])
360 /* The number of entries in mips_elf_dynsym_sec_names which go in the
363 #define MIPS_TEXT_DYNSYM_SECNO (3)
367 /* The names of the runtime procedure table symbols used on Irix 5. */
369 static const char * const mips_elf_dynsym_rtproc_names
[] =
372 "_procedure_string_table",
373 "_procedure_table_size",
377 /* These structures are used to generate the .compact_rel section on
382 unsigned long id1
; /* Always one? */
383 unsigned long num
; /* Number of compact relocation entries. */
384 unsigned long id2
; /* Always two? */
385 unsigned long offset
; /* The file offset of the first relocation. */
386 unsigned long reserved0
; /* Zero? */
387 unsigned long reserved1
; /* Zero? */
396 bfd_byte reserved0
[4];
397 bfd_byte reserved1
[4];
398 } Elf32_External_compact_rel
;
402 unsigned int ctype
: 1; /* 1: long 0: short format. See below. */
403 unsigned int rtype
: 4; /* Relocation types. See below. */
404 unsigned int dist2to
: 8;
405 unsigned int relvaddr
: 19; /* (VADDR - vaddr of the previous entry)/ 4 */
406 unsigned long konst
; /* KONST field. See below. */
407 unsigned long vaddr
; /* VADDR to be relocated. */
412 unsigned int ctype
: 1; /* 1: long 0: short format. See below. */
413 unsigned int rtype
: 4; /* Relocation types. See below. */
414 unsigned int dist2to
: 8;
415 unsigned int relvaddr
: 19; /* (VADDR - vaddr of the previous entry)/ 4 */
416 unsigned long konst
; /* KONST field. See below. */
424 } Elf32_External_crinfo
;
430 } Elf32_External_crinfo2
;
432 /* These are the constants used to swap the bitfields in a crinfo. */
434 #define CRINFO_CTYPE (0x1)
435 #define CRINFO_CTYPE_SH (31)
436 #define CRINFO_RTYPE (0xf)
437 #define CRINFO_RTYPE_SH (27)
438 #define CRINFO_DIST2TO (0xff)
439 #define CRINFO_DIST2TO_SH (19)
440 #define CRINFO_RELVADDR (0x7ffff)
441 #define CRINFO_RELVADDR_SH (0)
443 /* A compact relocation info has long (3 words) or short (2 words)
444 formats. A short format doesn't have VADDR field and relvaddr
445 fields contains ((VADDR - vaddr of the previous entry) >> 2). */
446 #define CRF_MIPS_LONG 1
447 #define CRF_MIPS_SHORT 0
449 /* There are 4 types of compact relocation at least. The value KONST
450 has different meaning for each type:
453 CT_MIPS_REL32 Address in data
454 CT_MIPS_WORD Address in word (XXX)
455 CT_MIPS_GPHI_LO GP - vaddr
456 CT_MIPS_JMPAD Address to jump
459 #define CRT_MIPS_REL32 0xa
460 #define CRT_MIPS_WORD 0xb
461 #define CRT_MIPS_GPHI_LO 0xc
462 #define CRT_MIPS_JMPAD 0xd
464 #define mips_elf_set_cr_format(x,format) ((x).ctype = (format))
465 #define mips_elf_set_cr_type(x,type) ((x).rtype = (type))
466 #define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v))
467 #define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2)
469 static void bfd_elf32_swap_compact_rel_out
470 PARAMS ((bfd
*, const Elf32_compact_rel
*, Elf32_External_compact_rel
*));
471 static void bfd_elf32_swap_crinfo_out
472 PARAMS ((bfd
*, const Elf32_crinfo
*, Elf32_External_crinfo
*));
474 #define USE_REL 1 /* MIPS uses REL relocations instead of RELA */
476 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
477 from smaller values. Start with zero, widen, *then* decrement. */
478 #define MINUS_ONE (((bfd_vma)0) - 1)
480 static reloc_howto_type elf_mips_howto_table
[] =
483 HOWTO (R_MIPS_NONE
, /* type */
485 0, /* size (0 = byte, 1 = short, 2 = long) */
487 false, /* pc_relative */
489 complain_overflow_dont
, /* complain_on_overflow */
490 bfd_elf_generic_reloc
, /* special_function */
491 "R_MIPS_NONE", /* name */
492 false, /* partial_inplace */
495 false), /* pcrel_offset */
497 /* 16 bit relocation. */
498 HOWTO (R_MIPS_16
, /* type */
500 1, /* size (0 = byte, 1 = short, 2 = long) */
502 false, /* pc_relative */
504 complain_overflow_bitfield
, /* complain_on_overflow */
505 bfd_elf_generic_reloc
, /* special_function */
506 "R_MIPS_16", /* name */
507 true, /* partial_inplace */
508 0xffff, /* src_mask */
509 0xffff, /* dst_mask */
510 false), /* pcrel_offset */
512 /* 32 bit relocation. */
513 HOWTO (R_MIPS_32
, /* type */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
517 false, /* pc_relative */
519 complain_overflow_bitfield
, /* complain_on_overflow */
520 bfd_elf_generic_reloc
, /* special_function */
521 "R_MIPS_32", /* name */
522 true, /* partial_inplace */
523 0xffffffff, /* src_mask */
524 0xffffffff, /* dst_mask */
525 false), /* pcrel_offset */
527 /* 32 bit symbol relative relocation. */
528 HOWTO (R_MIPS_REL32
, /* type */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
532 false, /* pc_relative */
534 complain_overflow_bitfield
, /* complain_on_overflow */
535 bfd_elf_generic_reloc
, /* special_function */
536 "R_MIPS_REL32", /* name */
537 true, /* partial_inplace */
538 0xffffffff, /* src_mask */
539 0xffffffff, /* dst_mask */
540 false), /* pcrel_offset */
542 /* 26 bit branch address. */
543 HOWTO (R_MIPS_26
, /* type */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
547 false, /* pc_relative */
549 complain_overflow_dont
, /* complain_on_overflow */
550 /* This needs complex overflow
551 detection, because the upper four
552 bits must match the PC + 4. */
553 bfd_elf_generic_reloc
, /* special_function */
554 "R_MIPS_26", /* name */
555 true, /* partial_inplace */
556 0x3ffffff, /* src_mask */
557 0x3ffffff, /* dst_mask */
558 false), /* pcrel_offset */
560 /* High 16 bits of symbol value. */
561 HOWTO (R_MIPS_HI16
, /* type */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
565 false, /* pc_relative */
567 complain_overflow_dont
, /* complain_on_overflow */
568 _bfd_mips_elf_hi16_reloc
, /* special_function */
569 "R_MIPS_HI16", /* name */
570 true, /* partial_inplace */
571 0xffff, /* src_mask */
572 0xffff, /* dst_mask */
573 false), /* pcrel_offset */
575 /* Low 16 bits of symbol value. */
576 HOWTO (R_MIPS_LO16
, /* type */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
580 false, /* pc_relative */
582 complain_overflow_dont
, /* complain_on_overflow */
583 _bfd_mips_elf_lo16_reloc
, /* special_function */
584 "R_MIPS_LO16", /* name */
585 true, /* partial_inplace */
586 0xffff, /* src_mask */
587 0xffff, /* dst_mask */
588 false), /* pcrel_offset */
590 /* GP relative reference. */
591 HOWTO (R_MIPS_GPREL16
, /* type */
593 2, /* size (0 = byte, 1 = short, 2 = long) */
595 false, /* pc_relative */
597 complain_overflow_signed
, /* complain_on_overflow */
598 _bfd_mips_elf_gprel16_reloc
, /* special_function */
599 "R_MIPS_GPREL16", /* name */
600 true, /* partial_inplace */
601 0xffff, /* src_mask */
602 0xffff, /* dst_mask */
603 false), /* pcrel_offset */
605 /* Reference to literal section. */
606 HOWTO (R_MIPS_LITERAL
, /* type */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
610 false, /* pc_relative */
612 complain_overflow_signed
, /* complain_on_overflow */
613 _bfd_mips_elf_gprel16_reloc
, /* special_function */
614 "R_MIPS_LITERAL", /* name */
615 true, /* partial_inplace */
616 0xffff, /* src_mask */
617 0xffff, /* dst_mask */
618 false), /* pcrel_offset */
620 /* Reference to global offset table. */
621 HOWTO (R_MIPS_GOT16
, /* type */
623 2, /* size (0 = byte, 1 = short, 2 = long) */
625 false, /* pc_relative */
627 complain_overflow_signed
, /* complain_on_overflow */
628 _bfd_mips_elf_got16_reloc
, /* special_function */
629 "R_MIPS_GOT16", /* name */
630 false, /* partial_inplace */
631 0xffff, /* src_mask */
632 0xffff, /* dst_mask */
633 false), /* pcrel_offset */
635 /* 16 bit PC relative reference. */
636 HOWTO (R_MIPS_PC16
, /* type */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
640 true, /* pc_relative */
642 complain_overflow_signed
, /* complain_on_overflow */
643 bfd_elf_generic_reloc
, /* special_function */
644 "R_MIPS_PC16", /* name */
645 true, /* partial_inplace */
646 0xffff, /* src_mask */
647 0xffff, /* dst_mask */
648 true), /* pcrel_offset */
650 /* 16 bit call through global offset table. */
651 HOWTO (R_MIPS_CALL16
, /* type */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
655 false, /* pc_relative */
657 complain_overflow_signed
, /* complain_on_overflow */
658 bfd_elf_generic_reloc
, /* special_function */
659 "R_MIPS_CALL16", /* name */
660 false, /* partial_inplace */
661 0xffff, /* src_mask */
662 0xffff, /* dst_mask */
663 false), /* pcrel_offset */
665 /* 32 bit GP relative reference. */
666 HOWTO (R_MIPS_GPREL32
, /* type */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
670 false, /* pc_relative */
672 complain_overflow_bitfield
, /* complain_on_overflow */
673 _bfd_mips_elf_gprel32_reloc
, /* special_function */
674 "R_MIPS_GPREL32", /* name */
675 true, /* partial_inplace */
676 0xffffffff, /* src_mask */
677 0xffffffff, /* dst_mask */
678 false), /* pcrel_offset */
680 /* The remaining relocs are defined on Irix 5, although they are
681 not defined by the ABI. */
686 /* A 5 bit shift field. */
687 HOWTO (R_MIPS_SHIFT5
, /* type */
689 2, /* size (0 = byte, 1 = short, 2 = long) */
691 false, /* pc_relative */
693 complain_overflow_bitfield
, /* complain_on_overflow */
694 bfd_elf_generic_reloc
, /* special_function */
695 "R_MIPS_SHIFT5", /* name */
696 true, /* partial_inplace */
697 0x000007c0, /* src_mask */
698 0x000007c0, /* dst_mask */
699 false), /* pcrel_offset */
701 /* A 6 bit shift field. */
702 /* FIXME: This is not handled correctly; a special function is
703 needed to put the most significant bit in the right place. */
704 HOWTO (R_MIPS_SHIFT6
, /* type */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
708 false, /* pc_relative */
710 complain_overflow_bitfield
, /* complain_on_overflow */
711 bfd_elf_generic_reloc
, /* special_function */
712 "R_MIPS_SHIFT6", /* name */
713 true, /* partial_inplace */
714 0x000007c4, /* src_mask */
715 0x000007c4, /* dst_mask */
716 false), /* pcrel_offset */
718 /* A 64 bit relocation. */
719 HOWTO (R_MIPS_64
, /* type */
721 4, /* size (0 = byte, 1 = short, 2 = long) */
723 false, /* pc_relative */
725 complain_overflow_bitfield
, /* complain_on_overflow */
726 mips32_64bit_reloc
, /* special_function */
727 "R_MIPS_64", /* name */
728 true, /* partial_inplace */
729 MINUS_ONE
, /* src_mask */
730 MINUS_ONE
, /* dst_mask */
731 false), /* pcrel_offset */
733 /* Displacement in the global offset table. */
734 HOWTO (R_MIPS_GOT_DISP
, /* type */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
738 false, /* pc_relative */
740 complain_overflow_bitfield
, /* complain_on_overflow */
741 bfd_elf_generic_reloc
, /* special_function */
742 "R_MIPS_GOT_DISP", /* name */
743 true, /* partial_inplace */
744 0x0000ffff, /* src_mask */
745 0x0000ffff, /* dst_mask */
746 false), /* pcrel_offset */
748 /* Displacement to page pointer in the global offset table. */
749 HOWTO (R_MIPS_GOT_PAGE
, /* type */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
753 false, /* pc_relative */
755 complain_overflow_bitfield
, /* complain_on_overflow */
756 bfd_elf_generic_reloc
, /* special_function */
757 "R_MIPS_GOT_PAGE", /* name */
758 true, /* partial_inplace */
759 0x0000ffff, /* src_mask */
760 0x0000ffff, /* dst_mask */
761 false), /* pcrel_offset */
763 /* Offset from page pointer in the global offset table. */
764 HOWTO (R_MIPS_GOT_OFST
, /* type */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
768 false, /* pc_relative */
770 complain_overflow_bitfield
, /* complain_on_overflow */
771 bfd_elf_generic_reloc
, /* special_function */
772 "R_MIPS_GOT_OFST", /* name */
773 true, /* partial_inplace */
774 0x0000ffff, /* src_mask */
775 0x0000ffff, /* dst_mask */
776 false), /* pcrel_offset */
778 /* High 16 bits of displacement in global offset table. */
779 HOWTO (R_MIPS_GOT_HI16
, /* type */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
783 false, /* pc_relative */
785 complain_overflow_dont
, /* complain_on_overflow */
786 bfd_elf_generic_reloc
, /* special_function */
787 "R_MIPS_GOT_HI16", /* name */
788 true, /* partial_inplace */
789 0x0000ffff, /* src_mask */
790 0x0000ffff, /* dst_mask */
791 false), /* pcrel_offset */
793 /* Low 16 bits of displacement in global offset table. */
794 HOWTO (R_MIPS_GOT_LO16
, /* type */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
798 false, /* pc_relative */
800 complain_overflow_dont
, /* complain_on_overflow */
801 bfd_elf_generic_reloc
, /* special_function */
802 "R_MIPS_GOT_LO16", /* name */
803 true, /* partial_inplace */
804 0x0000ffff, /* src_mask */
805 0x0000ffff, /* dst_mask */
806 false), /* pcrel_offset */
808 /* 64 bit subtraction. Used in the N32 ABI. */
809 HOWTO (R_MIPS_SUB
, /* type */
811 4, /* size (0 = byte, 1 = short, 2 = long) */
813 false, /* pc_relative */
815 complain_overflow_bitfield
, /* complain_on_overflow */
816 bfd_elf_generic_reloc
, /* special_function */
817 "R_MIPS_SUB", /* name */
818 true, /* partial_inplace */
819 MINUS_ONE
, /* src_mask */
820 MINUS_ONE
, /* dst_mask */
821 false), /* pcrel_offset */
823 /* Used to cause the linker to insert and delete instructions? */
824 EMPTY_HOWTO (R_MIPS_INSERT_A
),
825 EMPTY_HOWTO (R_MIPS_INSERT_B
),
826 EMPTY_HOWTO (R_MIPS_DELETE
),
828 /* Get the higher value of a 64 bit addend. */
829 HOWTO (R_MIPS_HIGHER
, /* type */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
833 false, /* pc_relative */
835 complain_overflow_dont
, /* complain_on_overflow */
836 bfd_elf_generic_reloc
, /* special_function */
837 "R_MIPS_HIGHER", /* name */
838 true, /* partial_inplace */
840 0xffff, /* dst_mask */
841 false), /* pcrel_offset */
843 /* Get the highest value of a 64 bit addend. */
844 HOWTO (R_MIPS_HIGHEST
, /* type */
846 2, /* size (0 = byte, 1 = short, 2 = long) */
848 false, /* pc_relative */
850 complain_overflow_dont
, /* complain_on_overflow */
851 bfd_elf_generic_reloc
, /* special_function */
852 "R_MIPS_HIGHEST", /* name */
853 true, /* partial_inplace */
855 0xffff, /* dst_mask */
856 false), /* pcrel_offset */
858 /* High 16 bits of displacement in global offset table. */
859 HOWTO (R_MIPS_CALL_HI16
, /* type */
861 2, /* size (0 = byte, 1 = short, 2 = long) */
863 false, /* pc_relative */
865 complain_overflow_dont
, /* complain_on_overflow */
866 bfd_elf_generic_reloc
, /* special_function */
867 "R_MIPS_CALL_HI16", /* name */
868 true, /* partial_inplace */
869 0x0000ffff, /* src_mask */
870 0x0000ffff, /* dst_mask */
871 false), /* pcrel_offset */
873 /* Low 16 bits of displacement in global offset table. */
874 HOWTO (R_MIPS_CALL_LO16
, /* type */
876 2, /* size (0 = byte, 1 = short, 2 = long) */
878 false, /* pc_relative */
880 complain_overflow_dont
, /* complain_on_overflow */
881 bfd_elf_generic_reloc
, /* special_function */
882 "R_MIPS_CALL_LO16", /* name */
883 true, /* partial_inplace */
884 0x0000ffff, /* src_mask */
885 0x0000ffff, /* dst_mask */
886 false), /* pcrel_offset */
888 /* Section displacement. */
889 HOWTO (R_MIPS_SCN_DISP
, /* type */
891 2, /* size (0 = byte, 1 = short, 2 = long) */
893 false, /* pc_relative */
895 complain_overflow_dont
, /* complain_on_overflow */
896 bfd_elf_generic_reloc
, /* special_function */
897 "R_MIPS_SCN_DISP", /* name */
898 false, /* partial_inplace */
899 0xffffffff, /* src_mask */
900 0xffffffff, /* dst_mask */
901 false), /* pcrel_offset */
903 EMPTY_HOWTO (R_MIPS_REL16
),
904 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE
),
905 EMPTY_HOWTO (R_MIPS_PJUMP
),
906 EMPTY_HOWTO (R_MIPS_RELGOT
),
908 /* Protected jump conversion. This is an optimization hint. No
909 relocation is required for correctness. */
910 HOWTO (R_MIPS_JALR
, /* type */
912 0, /* size (0 = byte, 1 = short, 2 = long) */
914 false, /* pc_relative */
916 complain_overflow_dont
, /* complain_on_overflow */
917 bfd_elf_generic_reloc
, /* special_function */
918 "R_MIPS_JALR", /* name */
919 false, /* partial_inplace */
920 0x00000000, /* src_mask */
921 0x00000000, /* dst_mask */
922 false), /* pcrel_offset */
925 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
926 is a hack to make the linker think that we need 64 bit values. */
927 static reloc_howto_type elf_mips_ctor64_howto
=
928 HOWTO (R_MIPS_64
, /* type */
930 4, /* size (0 = byte, 1 = short, 2 = long) */
932 false, /* pc_relative */
934 complain_overflow_signed
, /* complain_on_overflow */
935 mips32_64bit_reloc
, /* special_function */
936 "R_MIPS_64", /* name */
937 true, /* partial_inplace */
938 0xffffffff, /* src_mask */
939 0xffffffff, /* dst_mask */
940 false); /* pcrel_offset */
942 /* The reloc used for the mips16 jump instruction. */
943 static reloc_howto_type elf_mips16_jump_howto
=
944 HOWTO (R_MIPS16_26
, /* type */
946 2, /* size (0 = byte, 1 = short, 2 = long) */
948 false, /* pc_relative */
950 complain_overflow_dont
, /* complain_on_overflow */
951 /* This needs complex overflow
952 detection, because the upper four
953 bits must match the PC. */
954 mips16_jump_reloc
, /* special_function */
955 "R_MIPS16_26", /* name */
956 true, /* partial_inplace */
957 0x3ffffff, /* src_mask */
958 0x3ffffff, /* dst_mask */
959 false); /* pcrel_offset */
961 /* The reloc used for the mips16 gprel instruction. */
962 static reloc_howto_type elf_mips16_gprel_howto
=
963 HOWTO (R_MIPS16_GPREL
, /* type */
965 2, /* size (0 = byte, 1 = short, 2 = long) */
967 false, /* pc_relative */
969 complain_overflow_signed
, /* complain_on_overflow */
970 mips16_gprel_reloc
, /* special_function */
971 "R_MIPS16_GPREL", /* name */
972 true, /* partial_inplace */
973 0x07ff001f, /* src_mask */
974 0x07ff001f, /* dst_mask */
975 false); /* pcrel_offset */
977 /* GNU extensions for embedded-pic. */
978 /* High 16 bits of symbol value, pc-relative. */
979 static reloc_howto_type elf_mips_gnu_rel_hi16
=
980 HOWTO (R_MIPS_GNU_REL_HI16
, /* type */
982 2, /* size (0 = byte, 1 = short, 2 = long) */
984 true, /* pc_relative */
986 complain_overflow_dont
, /* complain_on_overflow */
987 _bfd_mips_elf_hi16_reloc
, /* special_function */
988 "R_MIPS_GNU_REL_HI16", /* name */
989 true, /* partial_inplace */
990 0xffff, /* src_mask */
991 0xffff, /* dst_mask */
992 true); /* pcrel_offset */
994 /* Low 16 bits of symbol value, pc-relative. */
995 static reloc_howto_type elf_mips_gnu_rel_lo16
=
996 HOWTO (R_MIPS_GNU_REL_LO16
, /* type */
998 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 true, /* pc_relative */
1002 complain_overflow_dont
, /* complain_on_overflow */
1003 _bfd_mips_elf_lo16_reloc
, /* special_function */
1004 "R_MIPS_GNU_REL_LO16", /* name */
1005 true, /* partial_inplace */
1006 0xffff, /* src_mask */
1007 0xffff, /* dst_mask */
1008 true); /* pcrel_offset */
1010 /* 16 bit offset for pc-relative branches. */
1011 static reloc_howto_type elf_mips_gnu_rel16_s2
=
1012 HOWTO (R_MIPS_GNU_REL16_S2
, /* type */
1014 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 true, /* pc_relative */
1018 complain_overflow_signed
, /* complain_on_overflow */
1019 bfd_elf_generic_reloc
, /* special_function */
1020 "R_MIPS_GNU_REL16_S2", /* name */
1021 true, /* partial_inplace */
1022 0xffff, /* src_mask */
1023 0xffff, /* dst_mask */
1024 true); /* pcrel_offset */
1026 /* 64 bit pc-relative. */
1027 static reloc_howto_type elf_mips_gnu_pcrel64
=
1028 HOWTO (R_MIPS_PC64
, /* type */
1030 4, /* size (0 = byte, 1 = short, 2 = long) */
1032 true, /* pc_relative */
1034 complain_overflow_signed
, /* complain_on_overflow */
1035 bfd_elf_generic_reloc
, /* special_function */
1036 "R_MIPS_PC64", /* name */
1037 true, /* partial_inplace */
1038 MINUS_ONE
, /* src_mask */
1039 MINUS_ONE
, /* dst_mask */
1040 true); /* pcrel_offset */
1042 /* 32 bit pc-relative. */
1043 static reloc_howto_type elf_mips_gnu_pcrel32
=
1044 HOWTO (R_MIPS_PC32
, /* type */
1046 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 true, /* pc_relative */
1050 complain_overflow_signed
, /* complain_on_overflow */
1051 bfd_elf_generic_reloc
, /* special_function */
1052 "R_MIPS_PC32", /* name */
1053 true, /* partial_inplace */
1054 0xffffffff, /* src_mask */
1055 0xffffffff, /* dst_mask */
1056 true); /* pcrel_offset */
1058 /* GNU extension to record C++ vtable hierarchy */
1059 static reloc_howto_type elf_mips_gnu_vtinherit_howto
=
1060 HOWTO (R_MIPS_GNU_VTINHERIT
, /* type */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 false, /* pc_relative */
1066 complain_overflow_dont
, /* complain_on_overflow */
1067 NULL
, /* special_function */
1068 "R_MIPS_GNU_VTINHERIT", /* name */
1069 false, /* partial_inplace */
1072 false); /* pcrel_offset */
1074 /* GNU extension to record C++ vtable member usage */
1075 static reloc_howto_type elf_mips_gnu_vtentry_howto
=
1076 HOWTO (R_MIPS_GNU_VTENTRY
, /* type */
1078 2, /* size (0 = byte, 1 = short, 2 = long) */
1080 false, /* pc_relative */
1082 complain_overflow_dont
, /* complain_on_overflow */
1083 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
1084 "R_MIPS_GNU_VTENTRY", /* name */
1085 false, /* partial_inplace */
1088 false); /* pcrel_offset */
1090 /* Do a R_MIPS_HI16 relocation. This has to be done in combination
1091 with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to
1092 the HI16. Here we just save the information we need; we do the
1093 actual relocation when we see the LO16. MIPS ELF requires that the
1094 LO16 immediately follow the HI16. As a GNU extension, we permit an
1095 arbitrary number of HI16 relocs to be associated with a single LO16
1096 reloc. This extension permits gcc to output the HI and LO relocs
1101 struct mips_hi16
*next
;
1106 /* FIXME: This should not be a static variable. */
1108 static struct mips_hi16
*mips_hi16_list
;
1110 bfd_reloc_status_type
1111 _bfd_mips_elf_hi16_reloc (abfd
,
1118 bfd
*abfd ATTRIBUTE_UNUSED
;
1119 arelent
*reloc_entry
;
1122 asection
*input_section
;
1124 char **error_message
;
1126 bfd_reloc_status_type ret
;
1128 struct mips_hi16
*n
;
1130 /* If we're relocating, and this an external symbol, we don't want
1131 to change anything. */
1132 if (output_bfd
!= (bfd
*) NULL
1133 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1134 && reloc_entry
->addend
== 0)
1136 reloc_entry
->address
+= input_section
->output_offset
;
1137 return bfd_reloc_ok
;
1142 if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1144 boolean relocateable
;
1147 if (ret
== bfd_reloc_undefined
)
1150 if (output_bfd
!= NULL
)
1151 relocateable
= true;
1154 relocateable
= false;
1155 output_bfd
= symbol
->section
->output_section
->owner
;
1158 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
,
1159 error_message
, &gp
);
1160 if (ret
!= bfd_reloc_ok
)
1163 relocation
= gp
- reloc_entry
->address
;
1167 if (bfd_is_und_section (symbol
->section
)
1168 && output_bfd
== (bfd
*) NULL
)
1169 ret
= bfd_reloc_undefined
;
1171 if (bfd_is_com_section (symbol
->section
))
1174 relocation
= symbol
->value
;
1177 relocation
+= symbol
->section
->output_section
->vma
;
1178 relocation
+= symbol
->section
->output_offset
;
1179 relocation
+= reloc_entry
->addend
;
1181 if (reloc_entry
->address
> input_section
->_cooked_size
)
1182 return bfd_reloc_outofrange
;
1184 /* Save the information, and let LO16 do the actual relocation. */
1185 n
= (struct mips_hi16
*) bfd_malloc (sizeof *n
);
1187 return bfd_reloc_outofrange
;
1188 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
1189 n
->addend
= relocation
;
1190 n
->next
= mips_hi16_list
;
1193 if (output_bfd
!= (bfd
*) NULL
)
1194 reloc_entry
->address
+= input_section
->output_offset
;
1199 /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit
1200 inplace relocation; this function exists in order to do the
1201 R_MIPS_HI16 relocation described above. */
1203 bfd_reloc_status_type
1204 _bfd_mips_elf_lo16_reloc (abfd
,
1212 arelent
*reloc_entry
;
1215 asection
*input_section
;
1217 char **error_message
;
1219 arelent gp_disp_relent
;
1221 if (mips_hi16_list
!= NULL
)
1223 struct mips_hi16
*l
;
1230 unsigned long vallo
;
1231 struct mips_hi16
*next
;
1233 /* Do the HI16 relocation. Note that we actually don't need
1234 to know anything about the LO16 itself, except where to
1235 find the low 16 bits of the addend needed by the LO16. */
1236 insn
= bfd_get_32 (abfd
, l
->addr
);
1237 vallo
= (bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
)
1239 val
= ((insn
& 0xffff) << 16) + vallo
;
1242 /* The low order 16 bits are always treated as a signed
1243 value. Therefore, a negative value in the low order bits
1244 requires an adjustment in the high order bits. We need
1245 to make this adjustment in two ways: once for the bits we
1246 took from the data, and once for the bits we are putting
1247 back in to the data. */
1248 if ((vallo
& 0x8000) != 0)
1250 if ((val
& 0x8000) != 0)
1253 insn
= (insn
& ~0xffff) | ((val
>> 16) & 0xffff);
1254 bfd_put_32 (abfd
, insn
, l
->addr
);
1256 if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1258 gp_disp_relent
= *reloc_entry
;
1259 reloc_entry
= &gp_disp_relent
;
1260 reloc_entry
->addend
= l
->addend
;
1268 mips_hi16_list
= NULL
;
1270 else if (strcmp (bfd_asymbol_name (symbol
), "_gp_disp") == 0)
1272 bfd_reloc_status_type ret
;
1273 bfd_vma gp
, relocation
;
1275 /* FIXME: Does this case ever occur? */
1277 ret
= mips_elf_final_gp (output_bfd
, symbol
, true, error_message
, &gp
);
1278 if (ret
!= bfd_reloc_ok
)
1281 relocation
= gp
- reloc_entry
->address
;
1282 relocation
+= symbol
->section
->output_section
->vma
;
1283 relocation
+= symbol
->section
->output_offset
;
1284 relocation
+= reloc_entry
->addend
;
1286 if (reloc_entry
->address
> input_section
->_cooked_size
)
1287 return bfd_reloc_outofrange
;
1289 gp_disp_relent
= *reloc_entry
;
1290 reloc_entry
= &gp_disp_relent
;
1291 reloc_entry
->addend
= relocation
- 4;
1294 /* Now do the LO16 reloc in the usual way. */
1295 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
1296 input_section
, output_bfd
, error_message
);
1299 /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset
1300 table used for PIC code. If the symbol is an external symbol, the
1301 instruction is modified to contain the offset of the appropriate
1302 entry in the global offset table. If the symbol is a section
1303 symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit
1304 addends are combined to form the real addend against the section
1305 symbol; the GOT16 is modified to contain the offset of an entry in
1306 the global offset table, and the LO16 is modified to offset it
1307 appropriately. Thus an offset larger than 16 bits requires a
1308 modified value in the global offset table.
1310 This implementation suffices for the assembler, but the linker does
1311 not yet know how to create global offset tables. */
1313 bfd_reloc_status_type
1314 _bfd_mips_elf_got16_reloc (abfd
,
1322 arelent
*reloc_entry
;
1325 asection
*input_section
;
1327 char **error_message
;
1329 /* If we're relocating, and this an external symbol, we don't want
1330 to change anything. */
1331 if (output_bfd
!= (bfd
*) NULL
1332 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1333 && reloc_entry
->addend
== 0)
1335 reloc_entry
->address
+= input_section
->output_offset
;
1336 return bfd_reloc_ok
;
1339 /* If we're relocating, and this is a local symbol, we can handle it
1341 if (output_bfd
!= (bfd
*) NULL
1342 && (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1343 return _bfd_mips_elf_hi16_reloc (abfd
, reloc_entry
, symbol
, data
,
1344 input_section
, output_bfd
, error_message
);
1349 /* Set the GP value for OUTPUT_BFD. Returns false if this is a
1350 dangerous relocation. */
1353 mips_elf_assign_gp (output_bfd
, pgp
)
1361 /* If we've already figured out what GP will be, just return it. */
1362 *pgp
= _bfd_get_gp_value (output_bfd
);
1366 count
= bfd_get_symcount (output_bfd
);
1367 sym
= bfd_get_outsymbols (output_bfd
);
1369 /* The linker script will have created a symbol named `_gp' with the
1370 appropriate value. */
1371 if (sym
== (asymbol
**) NULL
)
1375 for (i
= 0; i
< count
; i
++, sym
++)
1377 register CONST
char *name
;
1379 name
= bfd_asymbol_name (*sym
);
1380 if (*name
== '_' && strcmp (name
, "_gp") == 0)
1382 *pgp
= bfd_asymbol_value (*sym
);
1383 _bfd_set_gp_value (output_bfd
, *pgp
);
1391 /* Only get the error once. */
1393 _bfd_set_gp_value (output_bfd
, *pgp
);
1400 /* We have to figure out the gp value, so that we can adjust the
1401 symbol value correctly. We look up the symbol _gp in the output
1402 BFD. If we can't find it, we're stuck. We cache it in the ELF
1403 target data. We don't need to adjust the symbol value for an
1404 external symbol if we are producing relocateable output. */
1406 static bfd_reloc_status_type
1407 mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
, pgp
)
1410 boolean relocateable
;
1411 char **error_message
;
1414 if (bfd_is_und_section (symbol
->section
)
1418 return bfd_reloc_undefined
;
1421 *pgp
= _bfd_get_gp_value (output_bfd
);
1424 || (symbol
->flags
& BSF_SECTION_SYM
) != 0))
1428 /* Make up a value. */
1429 *pgp
= symbol
->section
->output_section
->vma
+ 0x4000;
1430 _bfd_set_gp_value (output_bfd
, *pgp
);
1432 else if (!mips_elf_assign_gp (output_bfd
, pgp
))
1435 (char *) _("GP relative relocation when _gp not defined");
1436 return bfd_reloc_dangerous
;
1440 return bfd_reloc_ok
;
1443 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1444 become the offset from the gp register. This function also handles
1445 R_MIPS_LITERAL relocations, although those can be handled more
1446 cleverly because the entries in the .lit8 and .lit4 sections can be
1449 static bfd_reloc_status_type gprel16_with_gp
PARAMS ((bfd
*, asymbol
*,
1450 arelent
*, asection
*,
1451 boolean
, PTR
, bfd_vma
));
1453 bfd_reloc_status_type
1454 _bfd_mips_elf_gprel16_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1455 output_bfd
, error_message
)
1457 arelent
*reloc_entry
;
1460 asection
*input_section
;
1462 char **error_message
;
1464 boolean relocateable
;
1465 bfd_reloc_status_type ret
;
1468 /* If we're relocating, and this is an external symbol with no
1469 addend, we don't want to change anything. We will only have an
1470 addend if this is a newly created reloc, not read from an ELF
1472 if (output_bfd
!= (bfd
*) NULL
1473 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1474 && reloc_entry
->addend
== 0)
1476 reloc_entry
->address
+= input_section
->output_offset
;
1477 return bfd_reloc_ok
;
1480 if (output_bfd
!= (bfd
*) NULL
)
1481 relocateable
= true;
1484 relocateable
= false;
1485 output_bfd
= symbol
->section
->output_section
->owner
;
1488 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
,
1490 if (ret
!= bfd_reloc_ok
)
1493 return gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1494 relocateable
, data
, gp
);
1497 static bfd_reloc_status_type
1498 gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
, relocateable
, data
,
1502 arelent
*reloc_entry
;
1503 asection
*input_section
;
1504 boolean relocateable
;
1512 if (bfd_is_com_section (symbol
->section
))
1515 relocation
= symbol
->value
;
1517 relocation
+= symbol
->section
->output_section
->vma
;
1518 relocation
+= symbol
->section
->output_offset
;
1520 if (reloc_entry
->address
> input_section
->_cooked_size
)
1521 return bfd_reloc_outofrange
;
1523 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1525 /* Set val to the offset into the section or symbol. */
1526 if (reloc_entry
->howto
->src_mask
== 0)
1528 /* This case occurs with the 64-bit MIPS ELF ABI. */
1529 val
= reloc_entry
->addend
;
1533 val
= ((insn
& 0xffff) + reloc_entry
->addend
) & 0xffff;
1538 /* Adjust val for the final section location and GP value. If we
1539 are producing relocateable output, we don't want to do this for
1540 an external symbol. */
1542 || (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1543 val
+= relocation
- gp
;
1545 insn
= (insn
& ~0xffff) | (val
& 0xffff);
1546 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
1549 reloc_entry
->address
+= input_section
->output_offset
;
1551 /* Make sure it fit in 16 bits. */
1552 if ((long) val
>= 0x8000 || (long) val
< -0x8000)
1553 return bfd_reloc_overflow
;
1555 return bfd_reloc_ok
;
1558 /* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset
1559 from the gp register? XXX */
1561 static bfd_reloc_status_type gprel32_with_gp
PARAMS ((bfd
*, asymbol
*,
1562 arelent
*, asection
*,
1563 boolean
, PTR
, bfd_vma
));
1565 bfd_reloc_status_type
1566 _bfd_mips_elf_gprel32_reloc (abfd
,
1574 arelent
*reloc_entry
;
1577 asection
*input_section
;
1579 char **error_message
;
1581 boolean relocateable
;
1582 bfd_reloc_status_type ret
;
1585 /* If we're relocating, and this is an external symbol with no
1586 addend, we don't want to change anything. We will only have an
1587 addend if this is a newly created reloc, not read from an ELF
1589 if (output_bfd
!= (bfd
*) NULL
1590 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1591 && reloc_entry
->addend
== 0)
1593 *error_message
= (char *)
1594 _("32bits gp relative relocation occurs for an external symbol");
1595 return bfd_reloc_outofrange
;
1598 if (output_bfd
!= (bfd
*) NULL
)
1600 relocateable
= true;
1601 gp
= _bfd_get_gp_value (output_bfd
);
1605 relocateable
= false;
1606 output_bfd
= symbol
->section
->output_section
->owner
;
1608 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
,
1609 error_message
, &gp
);
1610 if (ret
!= bfd_reloc_ok
)
1614 return gprel32_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1615 relocateable
, data
, gp
);
1618 static bfd_reloc_status_type
1619 gprel32_with_gp (abfd
, symbol
, reloc_entry
, input_section
, relocateable
, data
,
1623 arelent
*reloc_entry
;
1624 asection
*input_section
;
1625 boolean relocateable
;
1632 if (bfd_is_com_section (symbol
->section
))
1635 relocation
= symbol
->value
;
1637 relocation
+= symbol
->section
->output_section
->vma
;
1638 relocation
+= symbol
->section
->output_offset
;
1640 if (reloc_entry
->address
> input_section
->_cooked_size
)
1641 return bfd_reloc_outofrange
;
1643 if (reloc_entry
->howto
->src_mask
== 0)
1645 /* This case arises with the 64-bit MIPS ELF ABI. */
1649 val
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1651 /* Set val to the offset into the section or symbol. */
1652 val
+= reloc_entry
->addend
;
1654 /* Adjust val for the final section location and GP value. If we
1655 are producing relocateable output, we don't want to do this for
1656 an external symbol. */
1658 || (symbol
->flags
& BSF_SECTION_SYM
) != 0)
1659 val
+= relocation
- gp
;
1661 bfd_put_32 (abfd
, val
, (bfd_byte
*) data
+ reloc_entry
->address
);
1664 reloc_entry
->address
+= input_section
->output_offset
;
1666 return bfd_reloc_ok
;
1669 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1670 generated when addreses are 64 bits. The upper 32 bits are a simle
1673 static bfd_reloc_status_type
1674 mips32_64bit_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1675 output_bfd
, error_message
)
1677 arelent
*reloc_entry
;
1680 asection
*input_section
;
1682 char **error_message
;
1684 bfd_reloc_status_type r
;
1689 r
= bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
1690 input_section
, output_bfd
, error_message
);
1691 if (r
!= bfd_reloc_continue
)
1694 /* Do a normal 32 bit relocation on the lower 32 bits. */
1695 reloc32
= *reloc_entry
;
1696 if (bfd_big_endian (abfd
))
1697 reloc32
.address
+= 4;
1698 reloc32
.howto
= &elf_mips_howto_table
[R_MIPS_32
];
1699 r
= bfd_perform_relocation (abfd
, &reloc32
, data
, input_section
,
1700 output_bfd
, error_message
);
1702 /* Sign extend into the upper 32 bits. */
1703 val
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc32
.address
);
1704 if ((val
& 0x80000000) != 0)
1708 addr
= reloc_entry
->address
;
1709 if (bfd_little_endian (abfd
))
1711 bfd_put_32 (abfd
, val
, (bfd_byte
*) data
+ addr
);
1716 /* Handle a mips16 jump. */
1718 static bfd_reloc_status_type
1719 mips16_jump_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1720 output_bfd
, error_message
)
1721 bfd
*abfd ATTRIBUTE_UNUSED
;
1722 arelent
*reloc_entry
;
1724 PTR data ATTRIBUTE_UNUSED
;
1725 asection
*input_section
;
1727 char **error_message ATTRIBUTE_UNUSED
;
1729 if (output_bfd
!= (bfd
*) NULL
1730 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1731 && reloc_entry
->addend
== 0)
1733 reloc_entry
->address
+= input_section
->output_offset
;
1734 return bfd_reloc_ok
;
1739 static boolean warned
;
1742 (*_bfd_error_handler
)
1743 (_("Linking mips16 objects into %s format is not supported"),
1744 bfd_get_target (input_section
->output_section
->owner
));
1748 return bfd_reloc_undefined
;
1751 /* Handle a mips16 GP relative reloc. */
1753 static bfd_reloc_status_type
1754 mips16_gprel_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
1755 output_bfd
, error_message
)
1757 arelent
*reloc_entry
;
1760 asection
*input_section
;
1762 char **error_message
;
1764 boolean relocateable
;
1765 bfd_reloc_status_type ret
;
1767 unsigned short extend
, insn
;
1768 unsigned long final
;
1770 /* If we're relocating, and this is an external symbol with no
1771 addend, we don't want to change anything. We will only have an
1772 addend if this is a newly created reloc, not read from an ELF
1774 if (output_bfd
!= NULL
1775 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
1776 && reloc_entry
->addend
== 0)
1778 reloc_entry
->address
+= input_section
->output_offset
;
1779 return bfd_reloc_ok
;
1782 if (output_bfd
!= NULL
)
1783 relocateable
= true;
1786 relocateable
= false;
1787 output_bfd
= symbol
->section
->output_section
->owner
;
1790 ret
= mips_elf_final_gp (output_bfd
, symbol
, relocateable
, error_message
,
1792 if (ret
!= bfd_reloc_ok
)
1795 if (reloc_entry
->address
> input_section
->_cooked_size
)
1796 return bfd_reloc_outofrange
;
1798 /* Pick up the mips16 extend instruction and the real instruction. */
1799 extend
= bfd_get_16 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1800 insn
= bfd_get_16 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
+ 2);
1802 /* Stuff the current addend back as a 32 bit value, do the usual
1803 relocation, and then clean up. */
1805 (((extend
& 0x1f) << 11)
1808 (bfd_byte
*) data
+ reloc_entry
->address
);
1810 ret
= gprel16_with_gp (abfd
, symbol
, reloc_entry
, input_section
,
1811 relocateable
, data
, gp
);
1813 final
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
1816 | ((final
>> 11) & 0x1f)
1818 (bfd_byte
*) data
+ reloc_entry
->address
);
1822 (bfd_byte
*) data
+ reloc_entry
->address
+ 2);
1827 /* Return the ISA for a MIPS e_flags value. */
1830 elf_mips_isa (flags
)
1833 switch (flags
& EF_MIPS_ARCH
)
1845 case E_MIPS_ARCH_32
:
1847 case E_MIPS_ARCH_64
:
1853 /* Return the MACH for a MIPS e_flags value. */
1856 elf_mips_mach (flags
)
1859 switch (flags
& EF_MIPS_MACH
)
1861 case E_MIPS_MACH_3900
:
1862 return bfd_mach_mips3900
;
1864 case E_MIPS_MACH_4010
:
1865 return bfd_mach_mips4010
;
1867 case E_MIPS_MACH_4100
:
1868 return bfd_mach_mips4100
;
1870 case E_MIPS_MACH_4111
:
1871 return bfd_mach_mips4111
;
1873 case E_MIPS_MACH_4650
:
1874 return bfd_mach_mips4650
;
1876 case E_MIPS_MACH_MIPS32_4K
:
1877 return bfd_mach_mips32_4k
;
1879 case E_MIPS_MACH_SB1
:
1880 return bfd_mach_mips_sb1
;
1883 switch (flags
& EF_MIPS_ARCH
)
1887 return bfd_mach_mips3000
;
1891 return bfd_mach_mips6000
;
1895 return bfd_mach_mips4000
;
1899 return bfd_mach_mips8000
;
1903 return bfd_mach_mips5
;
1906 case E_MIPS_ARCH_32
:
1907 return bfd_mach_mips32
;
1910 case E_MIPS_ARCH_64
:
1911 return bfd_mach_mips64
;
1919 /* Return printable name for ABI. */
1921 static INLINE
char *
1922 elf_mips_abi_name (abfd
)
1927 if (ABI_N32_P (abfd
))
1929 else if (ABI_64_P (abfd
))
1932 flags
= elf_elfheader (abfd
)->e_flags
;
1933 switch (flags
& EF_MIPS_ABI
)
1937 case E_MIPS_ABI_O32
:
1939 case E_MIPS_ABI_O64
:
1941 case E_MIPS_ABI_EABI32
:
1943 case E_MIPS_ABI_EABI64
:
1946 return "unknown abi";
1950 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1952 struct elf_reloc_map
{
1953 bfd_reloc_code_real_type bfd_reloc_val
;
1954 enum elf_mips_reloc_type elf_reloc_val
;
1957 static CONST
struct elf_reloc_map mips_reloc_map
[] =
1959 { BFD_RELOC_NONE
, R_MIPS_NONE
, },
1960 { BFD_RELOC_16
, R_MIPS_16
},
1961 { BFD_RELOC_32
, R_MIPS_32
},
1962 { BFD_RELOC_64
, R_MIPS_64
},
1963 { BFD_RELOC_MIPS_JMP
, R_MIPS_26
},
1964 { BFD_RELOC_HI16_S
, R_MIPS_HI16
},
1965 { BFD_RELOC_LO16
, R_MIPS_LO16
},
1966 { BFD_RELOC_MIPS_GPREL
, R_MIPS_GPREL16
},
1967 { BFD_RELOC_MIPS_LITERAL
, R_MIPS_LITERAL
},
1968 { BFD_RELOC_MIPS_GOT16
, R_MIPS_GOT16
},
1969 { BFD_RELOC_16_PCREL
, R_MIPS_PC16
},
1970 { BFD_RELOC_MIPS_CALL16
, R_MIPS_CALL16
},
1971 { BFD_RELOC_MIPS_GPREL32
, R_MIPS_GPREL32
},
1972 { BFD_RELOC_MIPS_GOT_HI16
, R_MIPS_GOT_HI16
},
1973 { BFD_RELOC_MIPS_GOT_LO16
, R_MIPS_GOT_LO16
},
1974 { BFD_RELOC_MIPS_CALL_HI16
, R_MIPS_CALL_HI16
},
1975 { BFD_RELOC_MIPS_CALL_LO16
, R_MIPS_CALL_LO16
},
1976 { BFD_RELOC_MIPS_SUB
, R_MIPS_SUB
},
1977 { BFD_RELOC_MIPS_GOT_PAGE
, R_MIPS_GOT_PAGE
},
1978 { BFD_RELOC_MIPS_GOT_OFST
, R_MIPS_GOT_OFST
},
1979 { BFD_RELOC_MIPS_GOT_DISP
, R_MIPS_GOT_DISP
}
1982 /* Given a BFD reloc type, return a howto structure. */
1984 static reloc_howto_type
*
1985 bfd_elf32_bfd_reloc_type_lookup (abfd
, code
)
1987 bfd_reloc_code_real_type code
;
1991 for (i
= 0; i
< sizeof (mips_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
1993 if (mips_reloc_map
[i
].bfd_reloc_val
== code
)
1994 return &elf_mips_howto_table
[(int) mips_reloc_map
[i
].elf_reloc_val
];
2000 bfd_set_error (bfd_error_bad_value
);
2003 case BFD_RELOC_CTOR
:
2004 /* We need to handle BFD_RELOC_CTOR specially.
2005 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2006 size of addresses on this architecture. */
2007 if (bfd_arch_bits_per_address (abfd
) == 32)
2008 return &elf_mips_howto_table
[(int) R_MIPS_32
];
2010 return &elf_mips_ctor64_howto
;
2012 case BFD_RELOC_MIPS16_JMP
:
2013 return &elf_mips16_jump_howto
;
2014 case BFD_RELOC_MIPS16_GPREL
:
2015 return &elf_mips16_gprel_howto
;
2016 case BFD_RELOC_VTABLE_INHERIT
:
2017 return &elf_mips_gnu_vtinherit_howto
;
2018 case BFD_RELOC_VTABLE_ENTRY
:
2019 return &elf_mips_gnu_vtentry_howto
;
2020 case BFD_RELOC_PCREL_HI16_S
:
2021 return &elf_mips_gnu_rel_hi16
;
2022 case BFD_RELOC_PCREL_LO16
:
2023 return &elf_mips_gnu_rel_lo16
;
2024 case BFD_RELOC_16_PCREL_S2
:
2025 return &elf_mips_gnu_rel16_s2
;
2026 case BFD_RELOC_64_PCREL
:
2027 return &elf_mips_gnu_pcrel64
;
2028 case BFD_RELOC_32_PCREL
:
2029 return &elf_mips_gnu_pcrel32
;
2033 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2035 static reloc_howto_type
*
2036 mips_rtype_to_howto (r_type
)
2037 unsigned int r_type
;
2042 return &elf_mips16_jump_howto
;
2044 case R_MIPS16_GPREL
:
2045 return &elf_mips16_gprel_howto
;
2047 case R_MIPS_GNU_VTINHERIT
:
2048 return &elf_mips_gnu_vtinherit_howto
;
2050 case R_MIPS_GNU_VTENTRY
:
2051 return &elf_mips_gnu_vtentry_howto
;
2053 case R_MIPS_GNU_REL_HI16
:
2054 return &elf_mips_gnu_rel_hi16
;
2056 case R_MIPS_GNU_REL_LO16
:
2057 return &elf_mips_gnu_rel_lo16
;
2059 case R_MIPS_GNU_REL16_S2
:
2060 return &elf_mips_gnu_rel16_s2
;
2063 return &elf_mips_gnu_pcrel64
;
2066 return &elf_mips_gnu_pcrel32
;
2070 BFD_ASSERT (r_type
< (unsigned int) R_MIPS_max
);
2071 return &elf_mips_howto_table
[r_type
];
2076 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2079 mips_info_to_howto_rel (abfd
, cache_ptr
, dst
)
2082 Elf32_Internal_Rel
*dst
;
2084 unsigned int r_type
;
2086 r_type
= ELF32_R_TYPE (dst
->r_info
);
2087 cache_ptr
->howto
= mips_rtype_to_howto (r_type
);
2089 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2090 value for the object file. We get the addend now, rather than
2091 when we do the relocation, because the symbol manipulations done
2092 by the linker may cause us to lose track of the input BFD. */
2093 if (((*cache_ptr
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0
2094 && (r_type
== (unsigned int) R_MIPS_GPREL16
2095 || r_type
== (unsigned int) R_MIPS_LITERAL
))
2096 cache_ptr
->addend
= elf_gp (abfd
);
2099 /* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */
2102 mips_info_to_howto_rela (abfd
, cache_ptr
, dst
)
2105 Elf32_Internal_Rela
*dst
;
2107 /* Since an Elf32_Internal_Rel is an initial prefix of an
2108 Elf32_Internal_Rela, we can just use mips_info_to_howto_rel
2110 mips_info_to_howto_rel (abfd
, cache_ptr
, (Elf32_Internal_Rel
*) dst
);
2112 /* If we ever need to do any extra processing with dst->r_addend
2113 (the field omitted in an Elf32_Internal_Rel) we can do it here. */
2116 /* A .reginfo section holds a single Elf32_RegInfo structure. These
2117 routines swap this structure in and out. They are used outside of
2118 BFD, so they are globally visible. */
2121 bfd_mips_elf32_swap_reginfo_in (abfd
, ex
, in
)
2123 const Elf32_External_RegInfo
*ex
;
2126 in
->ri_gprmask
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gprmask
);
2127 in
->ri_cprmask
[0] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[0]);
2128 in
->ri_cprmask
[1] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[1]);
2129 in
->ri_cprmask
[2] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[2]);
2130 in
->ri_cprmask
[3] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[3]);
2131 in
->ri_gp_value
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gp_value
);
2135 bfd_mips_elf32_swap_reginfo_out (abfd
, in
, ex
)
2137 const Elf32_RegInfo
*in
;
2138 Elf32_External_RegInfo
*ex
;
2140 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gprmask
,
2141 (bfd_byte
*) ex
->ri_gprmask
);
2142 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[0],
2143 (bfd_byte
*) ex
->ri_cprmask
[0]);
2144 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[1],
2145 (bfd_byte
*) ex
->ri_cprmask
[1]);
2146 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[2],
2147 (bfd_byte
*) ex
->ri_cprmask
[2]);
2148 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[3],
2149 (bfd_byte
*) ex
->ri_cprmask
[3]);
2150 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gp_value
,
2151 (bfd_byte
*) ex
->ri_gp_value
);
2154 /* In the 64 bit ABI, the .MIPS.options section holds register
2155 information in an Elf64_Reginfo structure. These routines swap
2156 them in and out. They are globally visible because they are used
2157 outside of BFD. These routines are here so that gas can call them
2158 without worrying about whether the 64 bit ABI has been included. */
2161 bfd_mips_elf64_swap_reginfo_in (abfd
, ex
, in
)
2163 const Elf64_External_RegInfo
*ex
;
2164 Elf64_Internal_RegInfo
*in
;
2166 in
->ri_gprmask
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_gprmask
);
2167 in
->ri_pad
= bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_pad
);
2168 in
->ri_cprmask
[0] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[0]);
2169 in
->ri_cprmask
[1] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[1]);
2170 in
->ri_cprmask
[2] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[2]);
2171 in
->ri_cprmask
[3] = bfd_h_get_32 (abfd
, (bfd_byte
*) ex
->ri_cprmask
[3]);
2172 in
->ri_gp_value
= bfd_h_get_64 (abfd
, (bfd_byte
*) ex
->ri_gp_value
);
2176 bfd_mips_elf64_swap_reginfo_out (abfd
, in
, ex
)
2178 const Elf64_Internal_RegInfo
*in
;
2179 Elf64_External_RegInfo
*ex
;
2181 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_gprmask
,
2182 (bfd_byte
*) ex
->ri_gprmask
);
2183 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_pad
,
2184 (bfd_byte
*) ex
->ri_pad
);
2185 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[0],
2186 (bfd_byte
*) ex
->ri_cprmask
[0]);
2187 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[1],
2188 (bfd_byte
*) ex
->ri_cprmask
[1]);
2189 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[2],
2190 (bfd_byte
*) ex
->ri_cprmask
[2]);
2191 bfd_h_put_32 (abfd
, (bfd_vma
) in
->ri_cprmask
[3],
2192 (bfd_byte
*) ex
->ri_cprmask
[3]);
2193 bfd_h_put_64 (abfd
, (bfd_vma
) in
->ri_gp_value
,
2194 (bfd_byte
*) ex
->ri_gp_value
);
2197 /* Swap an entry in a .gptab section. Note that these routines rely
2198 on the equivalence of the two elements of the union. */
2201 bfd_mips_elf32_swap_gptab_in (abfd
, ex
, in
)
2203 const Elf32_External_gptab
*ex
;
2206 in
->gt_entry
.gt_g_value
= bfd_h_get_32 (abfd
, ex
->gt_entry
.gt_g_value
);
2207 in
->gt_entry
.gt_bytes
= bfd_h_get_32 (abfd
, ex
->gt_entry
.gt_bytes
);
2211 bfd_mips_elf32_swap_gptab_out (abfd
, in
, ex
)
2213 const Elf32_gptab
*in
;
2214 Elf32_External_gptab
*ex
;
2216 bfd_h_put_32 (abfd
, (bfd_vma
) in
->gt_entry
.gt_g_value
,
2217 ex
->gt_entry
.gt_g_value
);
2218 bfd_h_put_32 (abfd
, (bfd_vma
) in
->gt_entry
.gt_bytes
,
2219 ex
->gt_entry
.gt_bytes
);
2223 bfd_elf32_swap_compact_rel_out (abfd
, in
, ex
)
2225 const Elf32_compact_rel
*in
;
2226 Elf32_External_compact_rel
*ex
;
2228 bfd_h_put_32 (abfd
, (bfd_vma
) in
->id1
, ex
->id1
);
2229 bfd_h_put_32 (abfd
, (bfd_vma
) in
->num
, ex
->num
);
2230 bfd_h_put_32 (abfd
, (bfd_vma
) in
->id2
, ex
->id2
);
2231 bfd_h_put_32 (abfd
, (bfd_vma
) in
->offset
, ex
->offset
);
2232 bfd_h_put_32 (abfd
, (bfd_vma
) in
->reserved0
, ex
->reserved0
);
2233 bfd_h_put_32 (abfd
, (bfd_vma
) in
->reserved1
, ex
->reserved1
);
2237 bfd_elf32_swap_crinfo_out (abfd
, in
, ex
)
2239 const Elf32_crinfo
*in
;
2240 Elf32_External_crinfo
*ex
;
2244 l
= (((in
->ctype
& CRINFO_CTYPE
) << CRINFO_CTYPE_SH
)
2245 | ((in
->rtype
& CRINFO_RTYPE
) << CRINFO_RTYPE_SH
)
2246 | ((in
->dist2to
& CRINFO_DIST2TO
) << CRINFO_DIST2TO_SH
)
2247 | ((in
->relvaddr
& CRINFO_RELVADDR
) << CRINFO_RELVADDR_SH
));
2248 bfd_h_put_32 (abfd
, (bfd_vma
) l
, ex
->info
);
2249 bfd_h_put_32 (abfd
, (bfd_vma
) in
->konst
, ex
->konst
);
2250 bfd_h_put_32 (abfd
, (bfd_vma
) in
->vaddr
, ex
->vaddr
);
2253 /* Swap in an options header. */
2256 bfd_mips_elf_swap_options_in (abfd
, ex
, in
)
2258 const Elf_External_Options
*ex
;
2259 Elf_Internal_Options
*in
;
2261 in
->kind
= bfd_h_get_8 (abfd
, ex
->kind
);
2262 in
->size
= bfd_h_get_8 (abfd
, ex
->size
);
2263 in
->section
= bfd_h_get_16 (abfd
, ex
->section
);
2264 in
->info
= bfd_h_get_32 (abfd
, ex
->info
);
2267 /* Swap out an options header. */
2270 bfd_mips_elf_swap_options_out (abfd
, in
, ex
)
2272 const Elf_Internal_Options
*in
;
2273 Elf_External_Options
*ex
;
2275 bfd_h_put_8 (abfd
, in
->kind
, ex
->kind
);
2276 bfd_h_put_8 (abfd
, in
->size
, ex
->size
);
2277 bfd_h_put_16 (abfd
, in
->section
, ex
->section
);
2278 bfd_h_put_32 (abfd
, in
->info
, ex
->info
);
2281 /* Swap in an MSYM entry. */
2284 bfd_mips_elf_swap_msym_in (abfd
, ex
, in
)
2286 const Elf32_External_Msym
*ex
;
2287 Elf32_Internal_Msym
*in
;
2289 in
->ms_hash_value
= bfd_h_get_32 (abfd
, ex
->ms_hash_value
);
2290 in
->ms_info
= bfd_h_get_32 (abfd
, ex
->ms_info
);
2293 /* Swap out an MSYM entry. */
2296 bfd_mips_elf_swap_msym_out (abfd
, in
, ex
)
2298 const Elf32_Internal_Msym
*in
;
2299 Elf32_External_Msym
*ex
;
2301 bfd_h_put_32 (abfd
, in
->ms_hash_value
, ex
->ms_hash_value
);
2302 bfd_h_put_32 (abfd
, in
->ms_info
, ex
->ms_info
);
2305 /* Determine whether a symbol is global for the purposes of splitting
2306 the symbol table into global symbols and local symbols. At least
2307 on Irix 5, this split must be between section symbols and all other
2308 symbols. On most ELF targets the split is between static symbols
2309 and externally visible symbols. */
2312 mips_elf_sym_is_global (abfd
, sym
)
2313 bfd
*abfd ATTRIBUTE_UNUSED
;
2316 if (SGI_COMPAT(abfd
))
2317 return (sym
->flags
& BSF_SECTION_SYM
) == 0 ? true : false;
2319 return ((sym
->flags
& (BSF_GLOBAL
| BSF_WEAK
)) != 0
2320 || bfd_is_und_section (bfd_get_section (sym
))
2321 || bfd_is_com_section (bfd_get_section (sym
)));
2324 /* Set the right machine number for a MIPS ELF file. This is used for
2325 both the 32-bit and the 64-bit ABI. */
2328 _bfd_mips_elf_object_p (abfd
)
2331 /* Irix 5 and 6 is broken. Object file symbol tables are not always
2332 sorted correctly such that local symbols precede global symbols,
2333 and the sh_info field in the symbol table is not always right. */
2334 elf_bad_symtab (abfd
) = true;
2336 bfd_default_set_arch_mach (abfd
, bfd_arch_mips
,
2337 elf_mips_mach (elf_elfheader (abfd
)->e_flags
));
2341 /* The final processing done just before writing out a MIPS ELF object
2342 file. This gets the MIPS architecture right based on the machine
2343 number. This is used by both the 32-bit and the 64-bit ABI. */
2346 _bfd_mips_elf_final_write_processing (abfd
, linker
)
2348 boolean linker ATTRIBUTE_UNUSED
;
2352 Elf_Internal_Shdr
**hdrpp
;
2356 switch (bfd_get_mach (abfd
))
2359 case bfd_mach_mips3000
:
2360 val
= E_MIPS_ARCH_1
;
2363 case bfd_mach_mips3900
:
2364 val
= E_MIPS_ARCH_1
| E_MIPS_MACH_3900
;
2367 case bfd_mach_mips6000
:
2368 val
= E_MIPS_ARCH_2
;
2371 case bfd_mach_mips4000
:
2372 case bfd_mach_mips4300
:
2373 val
= E_MIPS_ARCH_3
;
2376 case bfd_mach_mips4010
:
2377 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4010
;
2380 case bfd_mach_mips4100
:
2381 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4100
;
2384 case bfd_mach_mips4111
:
2385 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4111
;
2388 case bfd_mach_mips4650
:
2389 val
= E_MIPS_ARCH_3
| E_MIPS_MACH_4650
;
2392 case bfd_mach_mips8000
:
2393 val
= E_MIPS_ARCH_4
;
2396 case bfd_mach_mips32
:
2397 val
= E_MIPS_ARCH_32
;
2400 case bfd_mach_mips32_4k
:
2401 val
= E_MIPS_ARCH_32
| E_MIPS_MACH_MIPS32_4K
;
2404 case bfd_mach_mips5
:
2405 val
= E_MIPS_ARCH_5
;
2408 case bfd_mach_mips64
:
2409 val
= E_MIPS_ARCH_64
;
2412 case bfd_mach_mips_sb1
:
2413 val
= E_MIPS_ARCH_64
| E_MIPS_MACH_SB1
;
2417 elf_elfheader (abfd
)->e_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2418 elf_elfheader (abfd
)->e_flags
|= val
;
2420 /* Set the sh_info field for .gptab sections and other appropriate
2421 info for each special section. */
2422 for (i
= 1, hdrpp
= elf_elfsections (abfd
) + 1;
2423 i
< elf_elfheader (abfd
)->e_shnum
;
2426 switch ((*hdrpp
)->sh_type
)
2429 case SHT_MIPS_LIBLIST
:
2430 sec
= bfd_get_section_by_name (abfd
, ".dynstr");
2432 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2435 case SHT_MIPS_GPTAB
:
2436 BFD_ASSERT ((*hdrpp
)->bfd_section
!= NULL
);
2437 name
= bfd_get_section_name (abfd
, (*hdrpp
)->bfd_section
);
2438 BFD_ASSERT (name
!= NULL
2439 && strncmp (name
, ".gptab.", sizeof ".gptab." - 1) == 0);
2440 sec
= bfd_get_section_by_name (abfd
, name
+ sizeof ".gptab" - 1);
2441 BFD_ASSERT (sec
!= NULL
);
2442 (*hdrpp
)->sh_info
= elf_section_data (sec
)->this_idx
;
2445 case SHT_MIPS_CONTENT
:
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
, ".MIPS.content",
2450 sizeof ".MIPS.content" - 1) == 0);
2451 sec
= bfd_get_section_by_name (abfd
,
2452 name
+ sizeof ".MIPS.content" - 1);
2453 BFD_ASSERT (sec
!= NULL
);
2454 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2457 case SHT_MIPS_SYMBOL_LIB
:
2458 sec
= bfd_get_section_by_name (abfd
, ".dynsym");
2460 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2461 sec
= bfd_get_section_by_name (abfd
, ".liblist");
2463 (*hdrpp
)->sh_info
= elf_section_data (sec
)->this_idx
;
2466 case SHT_MIPS_EVENTS
:
2467 BFD_ASSERT ((*hdrpp
)->bfd_section
!= NULL
);
2468 name
= bfd_get_section_name (abfd
, (*hdrpp
)->bfd_section
);
2469 BFD_ASSERT (name
!= NULL
);
2470 if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0)
2471 sec
= bfd_get_section_by_name (abfd
,
2472 name
+ sizeof ".MIPS.events" - 1);
2475 BFD_ASSERT (strncmp (name
, ".MIPS.post_rel",
2476 sizeof ".MIPS.post_rel" - 1) == 0);
2477 sec
= bfd_get_section_by_name (abfd
,
2479 + sizeof ".MIPS.post_rel" - 1));
2481 BFD_ASSERT (sec
!= NULL
);
2482 (*hdrpp
)->sh_link
= elf_section_data (sec
)->this_idx
;
2489 /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */
2492 _bfd_mips_elf_set_private_flags (abfd
, flags
)
2496 BFD_ASSERT (!elf_flags_init (abfd
)
2497 || elf_elfheader (abfd
)->e_flags
== flags
);
2499 elf_elfheader (abfd
)->e_flags
= flags
;
2500 elf_flags_init (abfd
) = true;
2504 /* Copy backend specific data from one object module to another */
2507 _bfd_mips_elf_copy_private_bfd_data (ibfd
, obfd
)
2511 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2512 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2515 BFD_ASSERT (!elf_flags_init (obfd
)
2516 || (elf_elfheader (obfd
)->e_flags
2517 == elf_elfheader (ibfd
)->e_flags
));
2519 elf_gp (obfd
) = elf_gp (ibfd
);
2520 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
2521 elf_flags_init (obfd
) = true;
2525 /* Merge backend specific data from an object file to the output
2526 object file when linking. */
2529 _bfd_mips_elf_merge_private_bfd_data (ibfd
, obfd
)
2536 boolean null_input_bfd
= true;
2539 /* Check if we have the same endianess */
2540 if (_bfd_generic_verify_endian_match (ibfd
, obfd
) == false)
2543 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2544 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2547 new_flags
= elf_elfheader (ibfd
)->e_flags
;
2548 elf_elfheader (obfd
)->e_flags
|= new_flags
& EF_MIPS_NOREORDER
;
2549 old_flags
= elf_elfheader (obfd
)->e_flags
;
2551 if (! elf_flags_init (obfd
))
2553 elf_flags_init (obfd
) = true;
2554 elf_elfheader (obfd
)->e_flags
= new_flags
;
2555 elf_elfheader (obfd
)->e_ident
[EI_CLASS
]
2556 = elf_elfheader (ibfd
)->e_ident
[EI_CLASS
];
2558 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
2559 && bfd_get_arch_info (obfd
)->the_default
)
2561 if (! bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
2562 bfd_get_mach (ibfd
)))
2569 /* Check flag compatibility. */
2571 new_flags
&= ~EF_MIPS_NOREORDER
;
2572 old_flags
&= ~EF_MIPS_NOREORDER
;
2574 if (new_flags
== old_flags
)
2577 /* Check to see if the input BFD actually contains any sections.
2578 If not, its flags may not have been initialised either, but it cannot
2579 actually cause any incompatibility. */
2580 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2582 /* Ignore synthetic sections and empty .text, .data and .bss sections
2583 which are automatically generated by gas. */
2584 if (strcmp (sec
->name
, ".reginfo")
2585 && strcmp (sec
->name
, ".mdebug")
2586 && ((!strcmp (sec
->name
, ".text")
2587 || !strcmp (sec
->name
, ".data")
2588 || !strcmp (sec
->name
, ".bss"))
2589 && sec
->_raw_size
!= 0))
2591 null_input_bfd
= false;
2600 if ((new_flags
& EF_MIPS_PIC
) != (old_flags
& EF_MIPS_PIC
))
2602 new_flags
&= ~EF_MIPS_PIC
;
2603 old_flags
&= ~EF_MIPS_PIC
;
2604 (*_bfd_error_handler
)
2605 (_("%s: linking PIC files with non-PIC files"),
2606 bfd_get_filename (ibfd
));
2610 if ((new_flags
& EF_MIPS_CPIC
) != (old_flags
& EF_MIPS_CPIC
))
2612 new_flags
&= ~EF_MIPS_CPIC
;
2613 old_flags
&= ~EF_MIPS_CPIC
;
2614 (*_bfd_error_handler
)
2615 (_("%s: linking abicalls files with non-abicalls files"),
2616 bfd_get_filename (ibfd
));
2620 /* Compare the ISA's. */
2621 if ((new_flags
& (EF_MIPS_ARCH
| EF_MIPS_MACH
))
2622 != (old_flags
& (EF_MIPS_ARCH
| EF_MIPS_MACH
)))
2624 int new_mach
= new_flags
& EF_MIPS_MACH
;
2625 int old_mach
= old_flags
& EF_MIPS_MACH
;
2626 int new_isa
= elf_mips_isa (new_flags
);
2627 int old_isa
= elf_mips_isa (old_flags
);
2629 /* If either has no machine specified, just compare the general isa's.
2630 Some combinations of machines are ok, if the isa's match. */
2633 || new_mach
== old_mach
2636 /* Don't warn about mixing code using 32-bit ISAs, or mixing code
2637 using 64-bit ISAs. They will normally use the same data sizes
2638 and calling conventions. */
2640 if (( (new_isa
== 1 || new_isa
== 2 || new_isa
== 32)
2641 ^ (old_isa
== 1 || old_isa
== 2 || old_isa
== 32)) != 0)
2643 (*_bfd_error_handler
)
2644 (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"),
2645 bfd_get_filename (ibfd
), new_isa
, old_isa
);
2652 (*_bfd_error_handler
)
2653 (_("%s: ISA mismatch (%d) with previous modules (%d)"),
2654 bfd_get_filename (ibfd
),
2655 elf_mips_mach (new_flags
),
2656 elf_mips_mach (old_flags
));
2660 new_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2661 old_flags
&= ~(EF_MIPS_ARCH
| EF_MIPS_MACH
);
2664 /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it
2665 does set EI_CLASS differently from any 32-bit ABI. */
2666 if ((new_flags
& EF_MIPS_ABI
) != (old_flags
& EF_MIPS_ABI
)
2667 || (elf_elfheader (ibfd
)->e_ident
[EI_CLASS
]
2668 != elf_elfheader (obfd
)->e_ident
[EI_CLASS
]))
2670 /* Only error if both are set (to different values). */
2671 if (((new_flags
& EF_MIPS_ABI
) && (old_flags
& EF_MIPS_ABI
))
2672 || (elf_elfheader (ibfd
)->e_ident
[EI_CLASS
]
2673 != elf_elfheader (obfd
)->e_ident
[EI_CLASS
]))
2675 (*_bfd_error_handler
)
2676 (_("%s: ABI mismatch: linking %s module with previous %s modules"),
2677 bfd_get_filename (ibfd
),
2678 elf_mips_abi_name (ibfd
),
2679 elf_mips_abi_name (obfd
));
2682 new_flags
&= ~EF_MIPS_ABI
;
2683 old_flags
&= ~EF_MIPS_ABI
;
2686 /* Warn about any other mismatches */
2687 if (new_flags
!= old_flags
)
2689 (*_bfd_error_handler
)
2690 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
2691 bfd_get_filename (ibfd
), (unsigned long) new_flags
,
2692 (unsigned long) old_flags
);
2698 bfd_set_error (bfd_error_bad_value
);
2706 _bfd_mips_elf_print_private_bfd_data (abfd
, ptr
)
2710 FILE *file
= (FILE *) ptr
;
2712 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
2714 /* Print normal ELF private data. */
2715 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
2717 /* xgettext:c-format */
2718 fprintf (file
, _("private flags = %lx:"), elf_elfheader (abfd
)->e_flags
);
2720 if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_O32
)
2721 fprintf (file
, _(" [abi=O32]"));
2722 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_O64
)
2723 fprintf (file
, _(" [abi=O64]"));
2724 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_EABI32
)
2725 fprintf (file
, _(" [abi=EABI32]"));
2726 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
) == E_MIPS_ABI_EABI64
)
2727 fprintf (file
, _(" [abi=EABI64]"));
2728 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ABI
))
2729 fprintf (file
, _(" [abi unknown]"));
2730 else if (ABI_N32_P (abfd
))
2731 fprintf (file
, _(" [abi=N32]"));
2732 else if (ABI_64_P (abfd
))
2733 fprintf (file
, _(" [abi=64]"));
2735 fprintf (file
, _(" [no abi set]"));
2737 if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_1
)
2738 fprintf (file
, _(" [mips1]"));
2739 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_2
)
2740 fprintf (file
, _(" [mips2]"));
2741 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_3
)
2742 fprintf (file
, _(" [mips3]"));
2743 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_4
)
2744 fprintf (file
, _(" [mips4]"));
2745 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_5
)
2746 fprintf (file
, _ (" [mips5]"));
2747 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_32
)
2748 fprintf (file
, _ (" [mips32]"));
2749 else if ((elf_elfheader (abfd
)->e_flags
& EF_MIPS_ARCH
) == E_MIPS_ARCH_64
)
2750 fprintf (file
, _ (" [mips64]"));
2752 fprintf (file
, _(" [unknown ISA]"));
2754 if (elf_elfheader (abfd
)->e_flags
& EF_MIPS_32BITMODE
)
2755 fprintf (file
, _(" [32bitmode]"));
2757 fprintf (file
, _(" [not 32bitmode]"));
2764 /* Handle a MIPS specific section when reading an object file. This
2765 is called when elfcode.h finds a section with an unknown type.
2766 This routine supports both the 32-bit and 64-bit ELF ABI.
2768 FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
2772 _bfd_mips_elf_section_from_shdr (abfd
, hdr
, name
)
2774 Elf_Internal_Shdr
*hdr
;
2779 /* There ought to be a place to keep ELF backend specific flags, but
2780 at the moment there isn't one. We just keep track of the
2781 sections by their name, instead. Fortunately, the ABI gives
2782 suggested names for all the MIPS specific sections, so we will
2783 probably get away with this. */
2784 switch (hdr
->sh_type
)
2786 case SHT_MIPS_LIBLIST
:
2787 if (strcmp (name
, ".liblist") != 0)
2791 if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (abfd
)) != 0)
2794 case SHT_MIPS_CONFLICT
:
2795 if (strcmp (name
, ".conflict") != 0)
2798 case SHT_MIPS_GPTAB
:
2799 if (strncmp (name
, ".gptab.", sizeof ".gptab." - 1) != 0)
2802 case SHT_MIPS_UCODE
:
2803 if (strcmp (name
, ".ucode") != 0)
2806 case SHT_MIPS_DEBUG
:
2807 if (strcmp (name
, ".mdebug") != 0)
2809 flags
= SEC_DEBUGGING
;
2811 case SHT_MIPS_REGINFO
:
2812 if (strcmp (name
, ".reginfo") != 0
2813 || hdr
->sh_size
!= sizeof (Elf32_External_RegInfo
))
2815 flags
= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_SAME_SIZE
);
2817 case SHT_MIPS_IFACE
:
2818 if (strcmp (name
, ".MIPS.interfaces") != 0)
2821 case SHT_MIPS_CONTENT
:
2822 if (strncmp (name
, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0)
2825 case SHT_MIPS_OPTIONS
:
2826 if (strcmp (name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) != 0)
2829 case SHT_MIPS_DWARF
:
2830 if (strncmp (name
, ".debug_", sizeof ".debug_" - 1) != 0)
2833 case SHT_MIPS_SYMBOL_LIB
:
2834 if (strcmp (name
, ".MIPS.symlib") != 0)
2837 case SHT_MIPS_EVENTS
:
2838 if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0
2839 && strncmp (name
, ".MIPS.post_rel",
2840 sizeof ".MIPS.post_rel" - 1) != 0)
2847 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
2852 if (! bfd_set_section_flags (abfd
, hdr
->bfd_section
,
2853 (bfd_get_section_flags (abfd
,
2859 /* FIXME: We should record sh_info for a .gptab section. */
2861 /* For a .reginfo section, set the gp value in the tdata information
2862 from the contents of this section. We need the gp value while
2863 processing relocs, so we just get it now. The .reginfo section
2864 is not used in the 64-bit MIPS ELF ABI. */
2865 if (hdr
->sh_type
== SHT_MIPS_REGINFO
)
2867 Elf32_External_RegInfo ext
;
2870 if (! bfd_get_section_contents (abfd
, hdr
->bfd_section
, (PTR
) &ext
,
2871 (file_ptr
) 0, sizeof ext
))
2873 bfd_mips_elf32_swap_reginfo_in (abfd
, &ext
, &s
);
2874 elf_gp (abfd
) = s
.ri_gp_value
;
2877 /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
2878 set the gp value based on what we find. We may see both
2879 SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
2880 they should agree. */
2881 if (hdr
->sh_type
== SHT_MIPS_OPTIONS
)
2883 bfd_byte
*contents
, *l
, *lend
;
2885 contents
= (bfd_byte
*) bfd_malloc (hdr
->sh_size
);
2886 if (contents
== NULL
)
2888 if (! bfd_get_section_contents (abfd
, hdr
->bfd_section
, contents
,
2889 (file_ptr
) 0, hdr
->sh_size
))
2895 lend
= contents
+ hdr
->sh_size
;
2896 while (l
+ sizeof (Elf_External_Options
) <= lend
)
2898 Elf_Internal_Options intopt
;
2900 bfd_mips_elf_swap_options_in (abfd
, (Elf_External_Options
*) l
,
2902 if (ABI_64_P (abfd
) && intopt
.kind
== ODK_REGINFO
)
2904 Elf64_Internal_RegInfo intreg
;
2906 bfd_mips_elf64_swap_reginfo_in
2908 ((Elf64_External_RegInfo
*)
2909 (l
+ sizeof (Elf_External_Options
))),
2911 elf_gp (abfd
) = intreg
.ri_gp_value
;
2913 else if (intopt
.kind
== ODK_REGINFO
)
2915 Elf32_RegInfo intreg
;
2917 bfd_mips_elf32_swap_reginfo_in
2919 ((Elf32_External_RegInfo
*)
2920 (l
+ sizeof (Elf_External_Options
))),
2922 elf_gp (abfd
) = intreg
.ri_gp_value
;
2932 /* Set the correct type for a MIPS ELF section. We do this by the
2933 section name, which is a hack, but ought to work. This routine is
2934 used by both the 32-bit and the 64-bit ABI. */
2937 _bfd_mips_elf_fake_sections (abfd
, hdr
, sec
)
2939 Elf32_Internal_Shdr
*hdr
;
2942 register const char *name
;
2944 name
= bfd_get_section_name (abfd
, sec
);
2946 if (strcmp (name
, ".liblist") == 0)
2948 hdr
->sh_type
= SHT_MIPS_LIBLIST
;
2949 hdr
->sh_info
= sec
->_raw_size
/ sizeof (Elf32_Lib
);
2950 /* The sh_link field is set in final_write_processing. */
2952 else if (strcmp (name
, ".conflict") == 0)
2953 hdr
->sh_type
= SHT_MIPS_CONFLICT
;
2954 else if (strncmp (name
, ".gptab.", sizeof ".gptab." - 1) == 0)
2956 hdr
->sh_type
= SHT_MIPS_GPTAB
;
2957 hdr
->sh_entsize
= sizeof (Elf32_External_gptab
);
2958 /* The sh_info field is set in final_write_processing. */
2960 else if (strcmp (name
, ".ucode") == 0)
2961 hdr
->sh_type
= SHT_MIPS_UCODE
;
2962 else if (strcmp (name
, ".mdebug") == 0)
2964 hdr
->sh_type
= SHT_MIPS_DEBUG
;
2965 /* In a shared object on Irix 5.3, the .mdebug section has an
2966 entsize of 0. FIXME: Does this matter? */
2967 if (SGI_COMPAT (abfd
) && (abfd
->flags
& DYNAMIC
) != 0)
2968 hdr
->sh_entsize
= 0;
2970 hdr
->sh_entsize
= 1;
2972 else if (strcmp (name
, ".reginfo") == 0)
2974 hdr
->sh_type
= SHT_MIPS_REGINFO
;
2975 /* In a shared object on Irix 5.3, the .reginfo section has an
2976 entsize of 0x18. FIXME: Does this matter? */
2977 if (SGI_COMPAT (abfd
))
2979 if ((abfd
->flags
& DYNAMIC
) != 0)
2980 hdr
->sh_entsize
= sizeof (Elf32_External_RegInfo
);
2982 hdr
->sh_entsize
= 1;
2985 hdr
->sh_entsize
= sizeof (Elf32_External_RegInfo
);
2987 else if (SGI_COMPAT (abfd
)
2988 && (strcmp (name
, ".hash") == 0
2989 || strcmp (name
, ".dynamic") == 0
2990 || strcmp (name
, ".dynstr") == 0))
2992 if (SGI_COMPAT (abfd
))
2993 hdr
->sh_entsize
= 0;
2995 /* This isn't how the Irix 6 linker behaves. */
2996 hdr
->sh_info
= SIZEOF_MIPS_DYNSYM_SECNAMES
;
2999 else if (strcmp (name
, ".got") == 0
3000 || strcmp (name
, MIPS_ELF_SRDATA_SECTION_NAME (abfd
)) == 0
3001 || strcmp (name
, ".sdata") == 0
3002 || strcmp (name
, ".sbss") == 0
3003 || strcmp (name
, ".lit4") == 0
3004 || strcmp (name
, ".lit8") == 0)
3005 hdr
->sh_flags
|= SHF_MIPS_GPREL
;
3006 else if (strcmp (name
, ".MIPS.interfaces") == 0)
3008 hdr
->sh_type
= SHT_MIPS_IFACE
;
3009 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3011 else if (strncmp (name
, ".MIPS.content", strlen (".MIPS.content")) == 0)
3013 hdr
->sh_type
= SHT_MIPS_CONTENT
;
3014 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3015 /* The sh_info field is set in final_write_processing. */
3017 else if (strcmp (name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
3019 hdr
->sh_type
= SHT_MIPS_OPTIONS
;
3020 hdr
->sh_entsize
= 1;
3021 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3023 else if (strncmp (name
, ".debug_", sizeof ".debug_" - 1) == 0)
3024 hdr
->sh_type
= SHT_MIPS_DWARF
;
3025 else if (strcmp (name
, ".MIPS.symlib") == 0)
3027 hdr
->sh_type
= SHT_MIPS_SYMBOL_LIB
;
3028 /* The sh_link and sh_info fields are set in
3029 final_write_processing. */
3031 else if (strncmp (name
, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0
3032 || strncmp (name
, ".MIPS.post_rel",
3033 sizeof ".MIPS.post_rel" - 1) == 0)
3035 hdr
->sh_type
= SHT_MIPS_EVENTS
;
3036 hdr
->sh_flags
|= SHF_MIPS_NOSTRIP
;
3037 /* The sh_link field is set in final_write_processing. */
3039 else if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (abfd
)) == 0)
3041 hdr
->sh_type
= SHT_MIPS_MSYM
;
3042 hdr
->sh_flags
|= SHF_ALLOC
;
3043 hdr
->sh_entsize
= 8;
3046 /* The generic elf_fake_sections will set up REL_HDR using the
3047 default kind of relocations. But, we may actually need both
3048 kinds of relocations, so we set up the second header here. */
3049 if ((sec
->flags
& SEC_RELOC
) != 0)
3051 struct bfd_elf_section_data
*esd
;
3053 esd
= elf_section_data (sec
);
3054 BFD_ASSERT (esd
->rel_hdr2
== NULL
);
3056 = (Elf_Internal_Shdr
*) bfd_zalloc (abfd
, sizeof (Elf_Internal_Shdr
));
3059 _bfd_elf_init_reloc_shdr (abfd
, esd
->rel_hdr2
, sec
,
3060 !elf_section_data (sec
)->use_rela_p
);
3066 /* Given a BFD section, try to locate the corresponding ELF section
3067 index. This is used by both the 32-bit and the 64-bit ABI.
3068 Actually, it's not clear to me that the 64-bit ABI supports these,
3069 but for non-PIC objects we will certainly want support for at least
3070 the .scommon section. */
3073 _bfd_mips_elf_section_from_bfd_section (abfd
, hdr
, sec
, retval
)
3074 bfd
*abfd ATTRIBUTE_UNUSED
;
3075 Elf32_Internal_Shdr
*hdr ATTRIBUTE_UNUSED
;
3079 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
3081 *retval
= SHN_MIPS_SCOMMON
;
3084 if (strcmp (bfd_get_section_name (abfd
, sec
), ".acommon") == 0)
3086 *retval
= SHN_MIPS_ACOMMON
;
3092 /* When are writing out the .options or .MIPS.options section,
3093 remember the bytes we are writing out, so that we can install the
3094 GP value in the section_processing routine. */
3097 _bfd_mips_elf_set_section_contents (abfd
, section
, location
, offset
, count
)
3102 bfd_size_type count
;
3104 if (strcmp (section
->name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
3108 if (elf_section_data (section
) == NULL
)
3110 section
->used_by_bfd
=
3111 (PTR
) bfd_zalloc (abfd
, sizeof (struct bfd_elf_section_data
));
3112 if (elf_section_data (section
) == NULL
)
3115 c
= (bfd_byte
*) elf_section_data (section
)->tdata
;
3120 if (section
->_cooked_size
!= 0)
3121 size
= section
->_cooked_size
;
3123 size
= section
->_raw_size
;
3124 c
= (bfd_byte
*) bfd_zalloc (abfd
, size
);
3127 elf_section_data (section
)->tdata
= (PTR
) c
;
3130 memcpy (c
+ offset
, location
, count
);
3133 return _bfd_elf_set_section_contents (abfd
, section
, location
, offset
,
3137 /* Work over a section just before writing it out. This routine is
3138 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3139 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3143 _bfd_mips_elf_section_processing (abfd
, hdr
)
3145 Elf_Internal_Shdr
*hdr
;
3147 if (hdr
->sh_type
== SHT_MIPS_REGINFO
3148 && hdr
->sh_size
> 0)
3152 BFD_ASSERT (hdr
->sh_size
== sizeof (Elf32_External_RegInfo
));
3153 BFD_ASSERT (hdr
->contents
== NULL
);
3156 hdr
->sh_offset
+ sizeof (Elf32_External_RegInfo
) - 4,
3159 bfd_h_put_32 (abfd
, (bfd_vma
) elf_gp (abfd
), buf
);
3160 if (bfd_write (buf
, (bfd_size_type
) 1, (bfd_size_type
) 4, abfd
) != 4)
3164 if (hdr
->sh_type
== SHT_MIPS_OPTIONS
3165 && hdr
->bfd_section
!= NULL
3166 && elf_section_data (hdr
->bfd_section
) != NULL
3167 && elf_section_data (hdr
->bfd_section
)->tdata
!= NULL
)
3169 bfd_byte
*contents
, *l
, *lend
;
3171 /* We stored the section contents in the elf_section_data tdata
3172 field in the set_section_contents routine. We save the
3173 section contents so that we don't have to read them again.
3174 At this point we know that elf_gp is set, so we can look
3175 through the section contents to see if there is an
3176 ODK_REGINFO structure. */
3178 contents
= (bfd_byte
*) elf_section_data (hdr
->bfd_section
)->tdata
;
3180 lend
= contents
+ hdr
->sh_size
;
3181 while (l
+ sizeof (Elf_External_Options
) <= lend
)
3183 Elf_Internal_Options intopt
;
3185 bfd_mips_elf_swap_options_in (abfd
, (Elf_External_Options
*) l
,
3187 if (ABI_64_P (abfd
) && intopt
.kind
== ODK_REGINFO
)
3194 + sizeof (Elf_External_Options
)
3195 + (sizeof (Elf64_External_RegInfo
) - 8)),
3198 bfd_h_put_64 (abfd
, elf_gp (abfd
), buf
);
3199 if (bfd_write (buf
, 1, 8, abfd
) != 8)
3202 else if (intopt
.kind
== ODK_REGINFO
)
3209 + sizeof (Elf_External_Options
)
3210 + (sizeof (Elf32_External_RegInfo
) - 4)),
3213 bfd_h_put_32 (abfd
, elf_gp (abfd
), buf
);
3214 if (bfd_write (buf
, 1, 4, abfd
) != 4)
3221 if (hdr
->bfd_section
!= NULL
)
3223 const char *name
= bfd_get_section_name (abfd
, hdr
->bfd_section
);
3225 if (strcmp (name
, ".sdata") == 0
3226 || strcmp (name
, ".lit8") == 0
3227 || strcmp (name
, ".lit4") == 0)
3229 hdr
->sh_flags
|= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
3230 hdr
->sh_type
= SHT_PROGBITS
;
3232 else if (strcmp (name
, ".sbss") == 0)
3234 hdr
->sh_flags
|= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
3235 hdr
->sh_type
= SHT_NOBITS
;
3237 else if (strcmp (name
, MIPS_ELF_SRDATA_SECTION_NAME (abfd
)) == 0)
3239 hdr
->sh_flags
|= SHF_ALLOC
| SHF_MIPS_GPREL
;
3240 hdr
->sh_type
= SHT_PROGBITS
;
3242 else if (strcmp (name
, ".compact_rel") == 0)
3245 hdr
->sh_type
= SHT_PROGBITS
;
3247 else if (strcmp (name
, ".rtproc") == 0)
3249 if (hdr
->sh_addralign
!= 0 && hdr
->sh_entsize
== 0)
3251 unsigned int adjust
;
3253 adjust
= hdr
->sh_size
% hdr
->sh_addralign
;
3255 hdr
->sh_size
+= hdr
->sh_addralign
- adjust
;
3263 /* MIPS ELF uses two common sections. One is the usual one, and the
3264 other is for small objects. All the small objects are kept
3265 together, and then referenced via the gp pointer, which yields
3266 faster assembler code. This is what we use for the small common
3267 section. This approach is copied from ecoff.c. */
3268 static asection mips_elf_scom_section
;
3269 static asymbol mips_elf_scom_symbol
;
3270 static asymbol
*mips_elf_scom_symbol_ptr
;
3272 /* MIPS ELF also uses an acommon section, which represents an
3273 allocated common symbol which may be overridden by a
3274 definition in a shared library. */
3275 static asection mips_elf_acom_section
;
3276 static asymbol mips_elf_acom_symbol
;
3277 static asymbol
*mips_elf_acom_symbol_ptr
;
3279 /* Handle the special MIPS section numbers that a symbol may use.
3280 This is used for both the 32-bit and the 64-bit ABI. */
3283 _bfd_mips_elf_symbol_processing (abfd
, asym
)
3287 elf_symbol_type
*elfsym
;
3289 elfsym
= (elf_symbol_type
*) asym
;
3290 switch (elfsym
->internal_elf_sym
.st_shndx
)
3292 case SHN_MIPS_ACOMMON
:
3293 /* This section is used in a dynamically linked executable file.
3294 It is an allocated common section. The dynamic linker can
3295 either resolve these symbols to something in a shared
3296 library, or it can just leave them here. For our purposes,
3297 we can consider these symbols to be in a new section. */
3298 if (mips_elf_acom_section
.name
== NULL
)
3300 /* Initialize the acommon section. */
3301 mips_elf_acom_section
.name
= ".acommon";
3302 mips_elf_acom_section
.flags
= SEC_ALLOC
;
3303 mips_elf_acom_section
.output_section
= &mips_elf_acom_section
;
3304 mips_elf_acom_section
.symbol
= &mips_elf_acom_symbol
;
3305 mips_elf_acom_section
.symbol_ptr_ptr
= &mips_elf_acom_symbol_ptr
;
3306 mips_elf_acom_symbol
.name
= ".acommon";
3307 mips_elf_acom_symbol
.flags
= BSF_SECTION_SYM
;
3308 mips_elf_acom_symbol
.section
= &mips_elf_acom_section
;
3309 mips_elf_acom_symbol_ptr
= &mips_elf_acom_symbol
;
3311 asym
->section
= &mips_elf_acom_section
;
3315 /* Common symbols less than the GP size are automatically
3316 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3317 if (asym
->value
> elf_gp_size (abfd
)
3318 || IRIX_COMPAT (abfd
) == ict_irix6
)
3321 case SHN_MIPS_SCOMMON
:
3322 if (mips_elf_scom_section
.name
== NULL
)
3324 /* Initialize the small common section. */
3325 mips_elf_scom_section
.name
= ".scommon";
3326 mips_elf_scom_section
.flags
= SEC_IS_COMMON
;
3327 mips_elf_scom_section
.output_section
= &mips_elf_scom_section
;
3328 mips_elf_scom_section
.symbol
= &mips_elf_scom_symbol
;
3329 mips_elf_scom_section
.symbol_ptr_ptr
= &mips_elf_scom_symbol_ptr
;
3330 mips_elf_scom_symbol
.name
= ".scommon";
3331 mips_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
3332 mips_elf_scom_symbol
.section
= &mips_elf_scom_section
;
3333 mips_elf_scom_symbol_ptr
= &mips_elf_scom_symbol
;
3335 asym
->section
= &mips_elf_scom_section
;
3336 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
3339 case SHN_MIPS_SUNDEFINED
:
3340 asym
->section
= bfd_und_section_ptr
;
3343 #if 0 /* for SGI_COMPAT */
3345 asym
->section
= mips_elf_text_section_ptr
;
3349 asym
->section
= mips_elf_data_section_ptr
;
3355 /* When creating an Irix 5 executable, we need REGINFO and RTPROC
3359 _bfd_mips_elf_additional_program_headers (abfd
)
3365 /* See if we need a PT_MIPS_REGINFO segment. */
3366 s
= bfd_get_section_by_name (abfd
, ".reginfo");
3367 if (s
&& (s
->flags
& SEC_LOAD
))
3370 /* See if we need a PT_MIPS_OPTIONS segment. */
3371 if (IRIX_COMPAT (abfd
) == ict_irix6
3372 && bfd_get_section_by_name (abfd
,
3373 MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)))
3376 /* See if we need a PT_MIPS_RTPROC segment. */
3377 if (IRIX_COMPAT (abfd
) == ict_irix5
3378 && bfd_get_section_by_name (abfd
, ".dynamic")
3379 && bfd_get_section_by_name (abfd
, ".mdebug"))
3385 /* Modify the segment map for an Irix 5 executable. */
3388 _bfd_mips_elf_modify_segment_map (abfd
)
3392 struct elf_segment_map
*m
, **pm
;
3394 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3396 s
= bfd_get_section_by_name (abfd
, ".reginfo");
3397 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0)
3399 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
3400 if (m
->p_type
== PT_MIPS_REGINFO
)
3404 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
3408 m
->p_type
= PT_MIPS_REGINFO
;
3412 /* We want to put it after the PHDR and INTERP segments. */
3413 pm
= &elf_tdata (abfd
)->segment_map
;
3415 && ((*pm
)->p_type
== PT_PHDR
3416 || (*pm
)->p_type
== PT_INTERP
))
3424 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3425 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3426 PT_OPTIONS segement immediately following the program header
3428 if (IRIX_COMPAT (abfd
) == ict_irix6
)
3432 for (s
= abfd
->sections
; s
; s
= s
->next
)
3433 if (elf_section_data (s
)->this_hdr
.sh_type
== SHT_MIPS_OPTIONS
)
3438 struct elf_segment_map
*options_segment
;
3440 /* Usually, there's a program header table. But, sometimes
3441 there's not (like when running the `ld' testsuite). So,
3442 if there's no program header table, we just put the
3443 options segement at the end. */
3444 for (pm
= &elf_tdata (abfd
)->segment_map
;
3447 if ((*pm
)->p_type
== PT_PHDR
)
3450 options_segment
= bfd_zalloc (abfd
,
3451 sizeof (struct elf_segment_map
));
3452 options_segment
->next
= *pm
;
3453 options_segment
->p_type
= PT_MIPS_OPTIONS
;
3454 options_segment
->p_flags
= PF_R
;
3455 options_segment
->p_flags_valid
= true;
3456 options_segment
->count
= 1;
3457 options_segment
->sections
[0] = s
;
3458 *pm
= options_segment
;
3463 if (IRIX_COMPAT (abfd
) == ict_irix5
)
3465 /* If there are .dynamic and .mdebug sections, we make a room
3466 for the RTPROC header. FIXME: Rewrite without section names. */
3467 if (bfd_get_section_by_name (abfd
, ".interp") == NULL
3468 && bfd_get_section_by_name (abfd
, ".dynamic") != NULL
3469 && bfd_get_section_by_name (abfd
, ".mdebug") != NULL
)
3471 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
3472 if (m
->p_type
== PT_MIPS_RTPROC
)
3476 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
3480 m
->p_type
= PT_MIPS_RTPROC
;
3482 s
= bfd_get_section_by_name (abfd
, ".rtproc");
3487 m
->p_flags_valid
= 1;
3495 /* We want to put it after the DYNAMIC segment. */
3496 pm
= &elf_tdata (abfd
)->segment_map
;
3497 while (*pm
!= NULL
&& (*pm
)->p_type
!= PT_DYNAMIC
)
3507 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
3508 .dynstr, .dynsym, and .hash sections, and everything in
3510 for (pm
= &elf_tdata (abfd
)->segment_map
; *pm
!= NULL
;
3512 if ((*pm
)->p_type
== PT_DYNAMIC
)
3515 if (IRIX_COMPAT (abfd
) == ict_none
)
3517 /* For a normal mips executable the permissions for the PT_DYNAMIC
3518 segment are read, write and execute. We do that here since
3519 the code in elf.c sets only the read permission. This matters
3520 sometimes for the dynamic linker. */
3521 if (bfd_get_section_by_name (abfd
, ".dynamic") != NULL
)
3523 m
->p_flags
= PF_R
| PF_W
| PF_X
;
3524 m
->p_flags_valid
= 1;
3528 && m
->count
== 1 && strcmp (m
->sections
[0]->name
, ".dynamic") == 0)
3530 static const char *sec_names
[] =
3532 ".dynamic", ".dynstr", ".dynsym", ".hash"
3536 struct elf_segment_map
*n
;
3540 for (i
= 0; i
< sizeof sec_names
/ sizeof sec_names
[0]; i
++)
3542 s
= bfd_get_section_by_name (abfd
, sec_names
[i
]);
3543 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0)
3549 sz
= s
->_cooked_size
;
3552 if (high
< s
->vma
+ sz
)
3558 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
3559 if ((s
->flags
& SEC_LOAD
) != 0
3562 + (s
->_cooked_size
!=
3563 0 ? s
->_cooked_size
: s
->_raw_size
)) <= high
))
3566 n
= ((struct elf_segment_map
*)
3567 bfd_zalloc (abfd
, sizeof *n
+ (c
- 1) * sizeof (asection
*)));
3574 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
3576 if ((s
->flags
& SEC_LOAD
) != 0
3579 + (s
->_cooked_size
!= 0 ?
3580 s
->_cooked_size
: s
->_raw_size
)) <= high
))
3594 /* The structure of the runtime procedure descriptor created by the
3595 loader for use by the static exception system. */
3597 typedef struct runtime_pdr
{
3598 bfd_vma adr
; /* memory address of start of procedure */
3599 long regmask
; /* save register mask */
3600 long regoffset
; /* save register offset */
3601 long fregmask
; /* save floating point register mask */
3602 long fregoffset
; /* save floating point register offset */
3603 long frameoffset
; /* frame size */
3604 short framereg
; /* frame pointer register */
3605 short pcreg
; /* offset or reg of return pc */
3606 long irpss
; /* index into the runtime string table */
3608 struct exception_info
*exception_info
;/* pointer to exception array */
3610 #define cbRPDR sizeof (RPDR)
3611 #define rpdNil ((pRPDR) 0)
3613 /* Swap RPDR (runtime procedure table entry) for output. */
3615 static void ecoff_swap_rpdr_out
3616 PARAMS ((bfd
*, const RPDR
*, struct rpdr_ext
*));
3619 ecoff_swap_rpdr_out (abfd
, in
, ex
)
3622 struct rpdr_ext
*ex
;
3624 /* ecoff_put_off was defined in ecoffswap.h. */
3625 ecoff_put_off (abfd
, in
->adr
, (bfd_byte
*) ex
->p_adr
);
3626 bfd_h_put_32 (abfd
, in
->regmask
, (bfd_byte
*) ex
->p_regmask
);
3627 bfd_h_put_32 (abfd
, in
->regoffset
, (bfd_byte
*) ex
->p_regoffset
);
3628 bfd_h_put_32 (abfd
, in
->fregmask
, (bfd_byte
*) ex
->p_fregmask
);
3629 bfd_h_put_32 (abfd
, in
->fregoffset
, (bfd_byte
*) ex
->p_fregoffset
);
3630 bfd_h_put_32 (abfd
, in
->frameoffset
, (bfd_byte
*) ex
->p_frameoffset
);
3632 bfd_h_put_16 (abfd
, in
->framereg
, (bfd_byte
*) ex
->p_framereg
);
3633 bfd_h_put_16 (abfd
, in
->pcreg
, (bfd_byte
*) ex
->p_pcreg
);
3635 bfd_h_put_32 (abfd
, in
->irpss
, (bfd_byte
*) ex
->p_irpss
);
3637 ecoff_put_off (abfd
, in
->exception_info
, (bfd_byte
*) ex
->p_exception_info
);
3641 /* Read ECOFF debugging information from a .mdebug section into a
3642 ecoff_debug_info structure. */
3645 _bfd_mips_elf_read_ecoff_info (abfd
, section
, debug
)
3648 struct ecoff_debug_info
*debug
;
3651 const struct ecoff_debug_swap
*swap
;
3652 char *ext_hdr
= NULL
;
3654 swap
= get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
3655 memset (debug
, 0, sizeof (*debug
));
3657 ext_hdr
= (char *) bfd_malloc ((size_t) swap
->external_hdr_size
);
3658 if (ext_hdr
== NULL
&& swap
->external_hdr_size
!= 0)
3661 if (bfd_get_section_contents (abfd
, section
, ext_hdr
, (file_ptr
) 0,
3662 swap
->external_hdr_size
)
3666 symhdr
= &debug
->symbolic_header
;
3667 (*swap
->swap_hdr_in
) (abfd
, ext_hdr
, symhdr
);
3669 /* The symbolic header contains absolute file offsets and sizes to
3671 #define READ(ptr, offset, count, size, type) \
3672 if (symhdr->count == 0) \
3673 debug->ptr = NULL; \
3676 debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
3677 if (debug->ptr == NULL) \
3678 goto error_return; \
3679 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
3680 || (bfd_read (debug->ptr, size, symhdr->count, \
3681 abfd) != size * symhdr->count)) \
3682 goto error_return; \
3685 READ (line
, cbLineOffset
, cbLine
, sizeof (unsigned char), unsigned char *);
3686 READ (external_dnr
, cbDnOffset
, idnMax
, swap
->external_dnr_size
, PTR
);
3687 READ (external_pdr
, cbPdOffset
, ipdMax
, swap
->external_pdr_size
, PTR
);
3688 READ (external_sym
, cbSymOffset
, isymMax
, swap
->external_sym_size
, PTR
);
3689 READ (external_opt
, cbOptOffset
, ioptMax
, swap
->external_opt_size
, PTR
);
3690 READ (external_aux
, cbAuxOffset
, iauxMax
, sizeof (union aux_ext
),
3692 READ (ss
, cbSsOffset
, issMax
, sizeof (char), char *);
3693 READ (ssext
, cbSsExtOffset
, issExtMax
, sizeof (char), char *);
3694 READ (external_fdr
, cbFdOffset
, ifdMax
, swap
->external_fdr_size
, PTR
);
3695 READ (external_rfd
, cbRfdOffset
, crfd
, swap
->external_rfd_size
, PTR
);
3696 READ (external_ext
, cbExtOffset
, iextMax
, swap
->external_ext_size
, PTR
);
3700 debug
->adjust
= NULL
;
3705 if (ext_hdr
!= NULL
)
3707 if (debug
->line
!= NULL
)
3709 if (debug
->external_dnr
!= NULL
)
3710 free (debug
->external_dnr
);
3711 if (debug
->external_pdr
!= NULL
)
3712 free (debug
->external_pdr
);
3713 if (debug
->external_sym
!= NULL
)
3714 free (debug
->external_sym
);
3715 if (debug
->external_opt
!= NULL
)
3716 free (debug
->external_opt
);
3717 if (debug
->external_aux
!= NULL
)
3718 free (debug
->external_aux
);
3719 if (debug
->ss
!= NULL
)
3721 if (debug
->ssext
!= NULL
)
3722 free (debug
->ssext
);
3723 if (debug
->external_fdr
!= NULL
)
3724 free (debug
->external_fdr
);
3725 if (debug
->external_rfd
!= NULL
)
3726 free (debug
->external_rfd
);
3727 if (debug
->external_ext
!= NULL
)
3728 free (debug
->external_ext
);
3732 /* MIPS ELF local labels start with '$', not 'L'. */
3735 mips_elf_is_local_label_name (abfd
, name
)
3742 /* On Irix 6, the labels go back to starting with '.', so we accept
3743 the generic ELF local label syntax as well. */
3744 return _bfd_elf_is_local_label_name (abfd
, name
);
3747 /* MIPS ELF uses a special find_nearest_line routine in order the
3748 handle the ECOFF debugging information. */
3750 struct mips_elf_find_line
3752 struct ecoff_debug_info d
;
3753 struct ecoff_find_line i
;
3757 _bfd_mips_elf_find_nearest_line (abfd
, section
, symbols
, offset
, filename_ptr
,
3758 functionname_ptr
, line_ptr
)
3763 const char **filename_ptr
;
3764 const char **functionname_ptr
;
3765 unsigned int *line_ptr
;
3769 if (_bfd_dwarf1_find_nearest_line (abfd
, section
, symbols
, offset
,
3770 filename_ptr
, functionname_ptr
,
3774 if (_bfd_dwarf2_find_nearest_line (abfd
, section
, symbols
, offset
,
3775 filename_ptr
, functionname_ptr
,
3777 ABI_64_P (abfd
) ? 8 : 0,
3778 &elf_tdata (abfd
)->dwarf2_find_line_info
))
3781 msec
= bfd_get_section_by_name (abfd
, ".mdebug");
3785 struct mips_elf_find_line
*fi
;
3786 const struct ecoff_debug_swap
* const swap
=
3787 get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
3789 /* If we are called during a link, mips_elf_final_link may have
3790 cleared the SEC_HAS_CONTENTS field. We force it back on here
3791 if appropriate (which it normally will be). */
3792 origflags
= msec
->flags
;
3793 if (elf_section_data (msec
)->this_hdr
.sh_type
!= SHT_NOBITS
)
3794 msec
->flags
|= SEC_HAS_CONTENTS
;
3796 fi
= elf_tdata (abfd
)->find_line_info
;
3799 bfd_size_type external_fdr_size
;
3802 struct fdr
*fdr_ptr
;
3804 fi
= ((struct mips_elf_find_line
*)
3805 bfd_zalloc (abfd
, sizeof (struct mips_elf_find_line
)));
3808 msec
->flags
= origflags
;
3812 if (! _bfd_mips_elf_read_ecoff_info (abfd
, msec
, &fi
->d
))
3814 msec
->flags
= origflags
;
3818 /* Swap in the FDR information. */
3819 fi
->d
.fdr
= ((struct fdr
*)
3821 (fi
->d
.symbolic_header
.ifdMax
*
3822 sizeof (struct fdr
))));
3823 if (fi
->d
.fdr
== NULL
)
3825 msec
->flags
= origflags
;
3828 external_fdr_size
= swap
->external_fdr_size
;
3829 fdr_ptr
= fi
->d
.fdr
;
3830 fraw_src
= (char *) fi
->d
.external_fdr
;
3831 fraw_end
= (fraw_src
3832 + fi
->d
.symbolic_header
.ifdMax
* external_fdr_size
);
3833 for (; fraw_src
< fraw_end
; fraw_src
+= external_fdr_size
, fdr_ptr
++)
3834 (*swap
->swap_fdr_in
) (abfd
, (PTR
) fraw_src
, fdr_ptr
);
3836 elf_tdata (abfd
)->find_line_info
= fi
;
3838 /* Note that we don't bother to ever free this information.
3839 find_nearest_line is either called all the time, as in
3840 objdump -l, so the information should be saved, or it is
3841 rarely called, as in ld error messages, so the memory
3842 wasted is unimportant. Still, it would probably be a
3843 good idea for free_cached_info to throw it away. */
3846 if (_bfd_ecoff_locate_line (abfd
, section
, offset
, &fi
->d
, swap
,
3847 &fi
->i
, filename_ptr
, functionname_ptr
,
3850 msec
->flags
= origflags
;
3854 msec
->flags
= origflags
;
3857 /* Fall back on the generic ELF find_nearest_line routine. */
3859 return _bfd_elf_find_nearest_line (abfd
, section
, symbols
, offset
,
3860 filename_ptr
, functionname_ptr
,
3864 /* The mips16 compiler uses a couple of special sections to handle
3865 floating point arguments.
3867 Section names that look like .mips16.fn.FNNAME contain stubs that
3868 copy floating point arguments from the fp regs to the gp regs and
3869 then jump to FNNAME. If any 32 bit function calls FNNAME, the
3870 call should be redirected to the stub instead. If no 32 bit
3871 function calls FNNAME, the stub should be discarded. We need to
3872 consider any reference to the function, not just a call, because
3873 if the address of the function is taken we will need the stub,
3874 since the address might be passed to a 32 bit function.
3876 Section names that look like .mips16.call.FNNAME contain stubs
3877 that copy floating point arguments from the gp regs to the fp
3878 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
3879 then any 16 bit function that calls FNNAME should be redirected
3880 to the stub instead. If FNNAME is not a 32 bit function, the
3881 stub should be discarded.
3883 .mips16.call.fp.FNNAME sections are similar, but contain stubs
3884 which call FNNAME and then copy the return value from the fp regs
3885 to the gp regs. These stubs store the return value in $18 while
3886 calling FNNAME; any function which might call one of these stubs
3887 must arrange to save $18 around the call. (This case is not
3888 needed for 32 bit functions that call 16 bit functions, because
3889 16 bit functions always return floating point values in both
3892 Note that in all cases FNNAME might be defined statically.
3893 Therefore, FNNAME is not used literally. Instead, the relocation
3894 information will indicate which symbol the section is for.
3896 We record any stubs that we find in the symbol table. */
3898 #define FN_STUB ".mips16.fn."
3899 #define CALL_STUB ".mips16.call."
3900 #define CALL_FP_STUB ".mips16.call.fp."
3902 /* MIPS ELF linker hash table. */
3904 struct mips_elf_link_hash_table
3906 struct elf_link_hash_table root
;
3908 /* We no longer use this. */
3909 /* String section indices for the dynamic section symbols. */
3910 bfd_size_type dynsym_sec_strindex
[SIZEOF_MIPS_DYNSYM_SECNAMES
];
3912 /* The number of .rtproc entries. */
3913 bfd_size_type procedure_count
;
3914 /* The size of the .compact_rel section (if SGI_COMPAT). */
3915 bfd_size_type compact_rel_size
;
3916 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
3917 entry is set to the address of __rld_obj_head as in Irix 5. */
3918 boolean use_rld_obj_head
;
3919 /* This is the value of the __rld_map or __rld_obj_head symbol. */
3921 /* This is set if we see any mips16 stub sections. */
3922 boolean mips16_stubs_seen
;
3925 /* Look up an entry in a MIPS ELF linker hash table. */
3927 #define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
3928 ((struct mips_elf_link_hash_entry *) \
3929 elf_link_hash_lookup (&(table)->root, (string), (create), \
3932 /* Traverse a MIPS ELF linker hash table. */
3934 #define mips_elf_link_hash_traverse(table, func, info) \
3935 (elf_link_hash_traverse \
3937 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
3940 /* Get the MIPS ELF linker hash table from a link_info structure. */
3942 #define mips_elf_hash_table(p) \
3943 ((struct mips_elf_link_hash_table *) ((p)->hash))
3945 static boolean mips_elf_output_extsym
3946 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
3948 /* Create an entry in a MIPS ELF linker hash table. */
3950 static struct bfd_hash_entry
*
3951 mips_elf_link_hash_newfunc (entry
, table
, string
)
3952 struct bfd_hash_entry
*entry
;
3953 struct bfd_hash_table
*table
;
3956 struct mips_elf_link_hash_entry
*ret
=
3957 (struct mips_elf_link_hash_entry
*) entry
;
3959 /* Allocate the structure if it has not already been allocated by a
3961 if (ret
== (struct mips_elf_link_hash_entry
*) NULL
)
3962 ret
= ((struct mips_elf_link_hash_entry
*)
3963 bfd_hash_allocate (table
,
3964 sizeof (struct mips_elf_link_hash_entry
)));
3965 if (ret
== (struct mips_elf_link_hash_entry
*) NULL
)
3966 return (struct bfd_hash_entry
*) ret
;
3968 /* Call the allocation method of the superclass. */
3969 ret
= ((struct mips_elf_link_hash_entry
*)
3970 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
3972 if (ret
!= (struct mips_elf_link_hash_entry
*) NULL
)
3974 /* Set local fields. */
3975 memset (&ret
->esym
, 0, sizeof (EXTR
));
3976 /* We use -2 as a marker to indicate that the information has
3977 not been set. -1 means there is no associated ifd. */
3979 ret
->possibly_dynamic_relocs
= 0;
3980 ret
->min_dyn_reloc_index
= 0;
3981 ret
->no_fn_stub
= false;
3982 ret
->fn_stub
= NULL
;
3983 ret
->need_fn_stub
= false;
3984 ret
->call_stub
= NULL
;
3985 ret
->call_fp_stub
= NULL
;
3988 return (struct bfd_hash_entry
*) ret
;
3992 _bfd_mips_elf_hide_symbol (info
, h
)
3993 struct bfd_link_info
*info
;
3994 struct mips_elf_link_hash_entry
*h
;
3998 struct mips_got_info
*g
;
3999 dynobj
= elf_hash_table (info
)->dynobj
;
4000 got
= bfd_get_section_by_name (dynobj
, ".got");
4001 g
= (struct mips_got_info
*) elf_section_data (got
)->tdata
;
4003 h
->root
.elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4004 h
->root
.plt
.offset
= (bfd_vma
) -1;
4005 if ((h
->root
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0)
4006 h
->root
.dynindx
= -1;
4008 /* FIXME: Do we allocate too much GOT space here? */
4010 got
->_raw_size
+= MIPS_ELF_GOT_SIZE (dynobj
);
4013 /* Create a MIPS ELF linker hash table. */
4015 struct bfd_link_hash_table
*
4016 _bfd_mips_elf_link_hash_table_create (abfd
)
4019 struct mips_elf_link_hash_table
*ret
;
4021 ret
= ((struct mips_elf_link_hash_table
*)
4022 bfd_alloc (abfd
, sizeof (struct mips_elf_link_hash_table
)));
4023 if (ret
== (struct mips_elf_link_hash_table
*) NULL
)
4026 if (! _bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
4027 mips_elf_link_hash_newfunc
))
4029 bfd_release (abfd
, ret
);
4034 /* We no longer use this. */
4035 for (i
= 0; i
< SIZEOF_MIPS_DYNSYM_SECNAMES
; i
++)
4036 ret
->dynsym_sec_strindex
[i
] = (bfd_size_type
) -1;
4038 ret
->procedure_count
= 0;
4039 ret
->compact_rel_size
= 0;
4040 ret
->use_rld_obj_head
= false;
4042 ret
->mips16_stubs_seen
= false;
4044 return &ret
->root
.root
;
4047 /* Hook called by the linker routine which adds symbols from an object
4048 file. We must handle the special MIPS section numbers here. */
4051 _bfd_mips_elf_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
4053 struct bfd_link_info
*info
;
4054 const Elf_Internal_Sym
*sym
;
4056 flagword
*flagsp ATTRIBUTE_UNUSED
;
4060 if (SGI_COMPAT (abfd
)
4061 && (abfd
->flags
& DYNAMIC
) != 0
4062 && strcmp (*namep
, "_rld_new_interface") == 0)
4064 /* Skip Irix 5 rld entry name. */
4069 switch (sym
->st_shndx
)
4072 /* Common symbols less than the GP size are automatically
4073 treated as SHN_MIPS_SCOMMON symbols. */
4074 if (sym
->st_size
> elf_gp_size (abfd
)
4075 || IRIX_COMPAT (abfd
) == ict_irix6
)
4078 case SHN_MIPS_SCOMMON
:
4079 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
4080 (*secp
)->flags
|= SEC_IS_COMMON
;
4081 *valp
= sym
->st_size
;
4085 /* This section is used in a shared object. */
4086 if (elf_tdata (abfd
)->elf_text_section
== NULL
)
4088 asymbol
*elf_text_symbol
;
4089 asection
*elf_text_section
;
4091 elf_text_section
= bfd_zalloc (abfd
, sizeof (asection
));
4092 if (elf_text_section
== NULL
)
4095 elf_text_symbol
= bfd_zalloc (abfd
, sizeof (asymbol
));
4096 if (elf_text_symbol
== NULL
)
4099 /* Initialize the section. */
4101 elf_tdata (abfd
)->elf_text_section
= elf_text_section
;
4102 elf_tdata (abfd
)->elf_text_symbol
= elf_text_symbol
;
4104 elf_text_section
->symbol
= elf_text_symbol
;
4105 elf_text_section
->symbol_ptr_ptr
= &elf_tdata (abfd
)->elf_text_symbol
;
4107 elf_text_section
->name
= ".text";
4108 elf_text_section
->flags
= SEC_NO_FLAGS
;
4109 elf_text_section
->output_section
= NULL
;
4110 elf_text_section
->owner
= abfd
;
4111 elf_text_symbol
->name
= ".text";
4112 elf_text_symbol
->flags
= BSF_SECTION_SYM
| BSF_DYNAMIC
;
4113 elf_text_symbol
->section
= elf_text_section
;
4115 /* This code used to do *secp = bfd_und_section_ptr if
4116 info->shared. I don't know why, and that doesn't make sense,
4117 so I took it out. */
4118 *secp
= elf_tdata (abfd
)->elf_text_section
;
4121 case SHN_MIPS_ACOMMON
:
4122 /* Fall through. XXX Can we treat this as allocated data? */
4124 /* This section is used in a shared object. */
4125 if (elf_tdata (abfd
)->elf_data_section
== NULL
)
4127 asymbol
*elf_data_symbol
;
4128 asection
*elf_data_section
;
4130 elf_data_section
= bfd_zalloc (abfd
, sizeof (asection
));
4131 if (elf_data_section
== NULL
)
4134 elf_data_symbol
= bfd_zalloc (abfd
, sizeof (asymbol
));
4135 if (elf_data_symbol
== NULL
)
4138 /* Initialize the section. */
4140 elf_tdata (abfd
)->elf_data_section
= elf_data_section
;
4141 elf_tdata (abfd
)->elf_data_symbol
= elf_data_symbol
;
4143 elf_data_section
->symbol
= elf_data_symbol
;
4144 elf_data_section
->symbol_ptr_ptr
= &elf_tdata (abfd
)->elf_data_symbol
;
4146 elf_data_section
->name
= ".data";
4147 elf_data_section
->flags
= SEC_NO_FLAGS
;
4148 elf_data_section
->output_section
= NULL
;
4149 elf_data_section
->owner
= abfd
;
4150 elf_data_symbol
->name
= ".data";
4151 elf_data_symbol
->flags
= BSF_SECTION_SYM
| BSF_DYNAMIC
;
4152 elf_data_symbol
->section
= elf_data_section
;
4154 /* This code used to do *secp = bfd_und_section_ptr if
4155 info->shared. I don't know why, and that doesn't make sense,
4156 so I took it out. */
4157 *secp
= elf_tdata (abfd
)->elf_data_section
;
4160 case SHN_MIPS_SUNDEFINED
:
4161 *secp
= bfd_und_section_ptr
;
4165 if (SGI_COMPAT (abfd
)
4167 && info
->hash
->creator
== abfd
->xvec
4168 && strcmp (*namep
, "__rld_obj_head") == 0)
4170 struct elf_link_hash_entry
*h
;
4172 /* Mark __rld_obj_head as dynamic. */
4174 if (! (_bfd_generic_link_add_one_symbol
4175 (info
, abfd
, *namep
, BSF_GLOBAL
, *secp
,
4176 (bfd_vma
) *valp
, (const char *) NULL
, false,
4177 get_elf_backend_data (abfd
)->collect
,
4178 (struct bfd_link_hash_entry
**) &h
)))
4180 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4181 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4182 h
->type
= STT_OBJECT
;
4184 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
4187 mips_elf_hash_table (info
)->use_rld_obj_head
= true;
4190 /* If this is a mips16 text symbol, add 1 to the value to make it
4191 odd. This will cause something like .word SYM to come up with
4192 the right value when it is loaded into the PC. */
4193 if (sym
->st_other
== STO_MIPS16
)
4199 /* Structure used to pass information to mips_elf_output_extsym. */
4204 struct bfd_link_info
*info
;
4205 struct ecoff_debug_info
*debug
;
4206 const struct ecoff_debug_swap
*swap
;
4210 /* This routine is used to write out ECOFF debugging external symbol
4211 information. It is called via mips_elf_link_hash_traverse. The
4212 ECOFF external symbol information must match the ELF external
4213 symbol information. Unfortunately, at this point we don't know
4214 whether a symbol is required by reloc information, so the two
4215 tables may wind up being different. We must sort out the external
4216 symbol information before we can set the final size of the .mdebug
4217 section, and we must set the size of the .mdebug section before we
4218 can relocate any sections, and we can't know which symbols are
4219 required by relocation until we relocate the sections.
4220 Fortunately, it is relatively unlikely that any symbol will be
4221 stripped but required by a reloc. In particular, it can not happen
4222 when generating a final executable. */
4225 mips_elf_output_extsym (h
, data
)
4226 struct mips_elf_link_hash_entry
*h
;
4229 struct extsym_info
*einfo
= (struct extsym_info
*) data
;
4231 asection
*sec
, *output_section
;
4233 if (h
->root
.indx
== -2)
4235 else if (((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4236 || (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0)
4237 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0
4238 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
) == 0)
4240 else if (einfo
->info
->strip
== strip_all
4241 || (einfo
->info
->strip
== strip_some
4242 && bfd_hash_lookup (einfo
->info
->keep_hash
,
4243 h
->root
.root
.root
.string
,
4244 false, false) == NULL
))
4252 if (h
->esym
.ifd
== -2)
4255 h
->esym
.cobol_main
= 0;
4256 h
->esym
.weakext
= 0;
4257 h
->esym
.reserved
= 0;
4258 h
->esym
.ifd
= ifdNil
;
4259 h
->esym
.asym
.value
= 0;
4260 h
->esym
.asym
.st
= stGlobal
;
4262 if (h
->root
.root
.type
== bfd_link_hash_undefined
4263 || h
->root
.root
.type
== bfd_link_hash_undefweak
)
4267 /* Use undefined class. Also, set class and type for some
4269 name
= h
->root
.root
.root
.string
;
4270 if (strcmp (name
, mips_elf_dynsym_rtproc_names
[0]) == 0
4271 || strcmp (name
, mips_elf_dynsym_rtproc_names
[1]) == 0)
4273 h
->esym
.asym
.sc
= scData
;
4274 h
->esym
.asym
.st
= stLabel
;
4275 h
->esym
.asym
.value
= 0;
4277 else if (strcmp (name
, mips_elf_dynsym_rtproc_names
[2]) == 0)
4279 h
->esym
.asym
.sc
= scAbs
;
4280 h
->esym
.asym
.st
= stLabel
;
4281 h
->esym
.asym
.value
=
4282 mips_elf_hash_table (einfo
->info
)->procedure_count
;
4284 else if (strcmp (name
, "_gp_disp") == 0)
4286 h
->esym
.asym
.sc
= scAbs
;
4287 h
->esym
.asym
.st
= stLabel
;
4288 h
->esym
.asym
.value
= elf_gp (einfo
->abfd
);
4291 h
->esym
.asym
.sc
= scUndefined
;
4293 else if (h
->root
.root
.type
!= bfd_link_hash_defined
4294 && h
->root
.root
.type
!= bfd_link_hash_defweak
)
4295 h
->esym
.asym
.sc
= scAbs
;
4300 sec
= h
->root
.root
.u
.def
.section
;
4301 output_section
= sec
->output_section
;
4303 /* When making a shared library and symbol h is the one from
4304 the another shared library, OUTPUT_SECTION may be null. */
4305 if (output_section
== NULL
)
4306 h
->esym
.asym
.sc
= scUndefined
;
4309 name
= bfd_section_name (output_section
->owner
, output_section
);
4311 if (strcmp (name
, ".text") == 0)
4312 h
->esym
.asym
.sc
= scText
;
4313 else if (strcmp (name
, ".data") == 0)
4314 h
->esym
.asym
.sc
= scData
;
4315 else if (strcmp (name
, ".sdata") == 0)
4316 h
->esym
.asym
.sc
= scSData
;
4317 else if (strcmp (name
, ".rodata") == 0
4318 || strcmp (name
, ".rdata") == 0)
4319 h
->esym
.asym
.sc
= scRData
;
4320 else if (strcmp (name
, ".bss") == 0)
4321 h
->esym
.asym
.sc
= scBss
;
4322 else if (strcmp (name
, ".sbss") == 0)
4323 h
->esym
.asym
.sc
= scSBss
;
4324 else if (strcmp (name
, ".init") == 0)
4325 h
->esym
.asym
.sc
= scInit
;
4326 else if (strcmp (name
, ".fini") == 0)
4327 h
->esym
.asym
.sc
= scFini
;
4329 h
->esym
.asym
.sc
= scAbs
;
4333 h
->esym
.asym
.reserved
= 0;
4334 h
->esym
.asym
.index
= indexNil
;
4337 if (h
->root
.root
.type
== bfd_link_hash_common
)
4338 h
->esym
.asym
.value
= h
->root
.root
.u
.c
.size
;
4339 else if (h
->root
.root
.type
== bfd_link_hash_defined
4340 || h
->root
.root
.type
== bfd_link_hash_defweak
)
4342 if (h
->esym
.asym
.sc
== scCommon
)
4343 h
->esym
.asym
.sc
= scBss
;
4344 else if (h
->esym
.asym
.sc
== scSCommon
)
4345 h
->esym
.asym
.sc
= scSBss
;
4347 sec
= h
->root
.root
.u
.def
.section
;
4348 output_section
= sec
->output_section
;
4349 if (output_section
!= NULL
)
4350 h
->esym
.asym
.value
= (h
->root
.root
.u
.def
.value
4351 + sec
->output_offset
4352 + output_section
->vma
);
4354 h
->esym
.asym
.value
= 0;
4356 else if ((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4358 struct mips_elf_link_hash_entry
*hd
= h
;
4359 boolean no_fn_stub
= h
->no_fn_stub
;
4361 while (hd
->root
.root
.type
== bfd_link_hash_indirect
)
4363 hd
= (struct mips_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
4364 no_fn_stub
= no_fn_stub
|| hd
->no_fn_stub
;
4369 /* Set type and value for a symbol with a function stub. */
4370 h
->esym
.asym
.st
= stProc
;
4371 sec
= hd
->root
.root
.u
.def
.section
;
4373 h
->esym
.asym
.value
= 0;
4376 output_section
= sec
->output_section
;
4377 if (output_section
!= NULL
)
4378 h
->esym
.asym
.value
= (hd
->root
.plt
.offset
4379 + sec
->output_offset
4380 + output_section
->vma
);
4382 h
->esym
.asym
.value
= 0;
4390 if (! bfd_ecoff_debug_one_external (einfo
->abfd
, einfo
->debug
, einfo
->swap
,
4391 h
->root
.root
.root
.string
,
4394 einfo
->failed
= true;
4401 /* Create a runtime procedure table from the .mdebug section. */
4404 mips_elf_create_procedure_table (handle
, abfd
, info
, s
, debug
)
4407 struct bfd_link_info
*info
;
4409 struct ecoff_debug_info
*debug
;
4411 const struct ecoff_debug_swap
*swap
;
4412 HDRR
*hdr
= &debug
->symbolic_header
;
4414 struct rpdr_ext
*erp
;
4416 struct pdr_ext
*epdr
;
4417 struct sym_ext
*esym
;
4420 unsigned long size
, count
;
4421 unsigned long sindex
;
4425 const char *no_name_func
= _("static procedure (no name)");
4433 swap
= get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
4435 sindex
= strlen (no_name_func
) + 1;
4436 count
= hdr
->ipdMax
;
4439 size
= swap
->external_pdr_size
;
4441 epdr
= (struct pdr_ext
*) bfd_malloc (size
* count
);
4445 if (! _bfd_ecoff_get_accumulated_pdr (handle
, (PTR
) epdr
))
4448 size
= sizeof (RPDR
);
4449 rp
= rpdr
= (RPDR
*) bfd_malloc (size
* count
);
4453 sv
= (char **) bfd_malloc (sizeof (char *) * count
);
4457 count
= hdr
->isymMax
;
4458 size
= swap
->external_sym_size
;
4459 esym
= (struct sym_ext
*) bfd_malloc (size
* count
);
4463 if (! _bfd_ecoff_get_accumulated_sym (handle
, (PTR
) esym
))
4466 count
= hdr
->issMax
;
4467 ss
= (char *) bfd_malloc (count
);
4470 if (! _bfd_ecoff_get_accumulated_ss (handle
, (PTR
) ss
))
4473 count
= hdr
->ipdMax
;
4474 for (i
= 0; i
< count
; i
++, rp
++)
4476 (*swap
->swap_pdr_in
) (abfd
, (PTR
) (epdr
+ i
), &pdr
);
4477 (*swap
->swap_sym_in
) (abfd
, (PTR
) &esym
[pdr
.isym
], &sym
);
4478 rp
->adr
= sym
.value
;
4479 rp
->regmask
= pdr
.regmask
;
4480 rp
->regoffset
= pdr
.regoffset
;
4481 rp
->fregmask
= pdr
.fregmask
;
4482 rp
->fregoffset
= pdr
.fregoffset
;
4483 rp
->frameoffset
= pdr
.frameoffset
;
4484 rp
->framereg
= pdr
.framereg
;
4485 rp
->pcreg
= pdr
.pcreg
;
4487 sv
[i
] = ss
+ sym
.iss
;
4488 sindex
+= strlen (sv
[i
]) + 1;
4492 size
= sizeof (struct rpdr_ext
) * (count
+ 2) + sindex
;
4493 size
= BFD_ALIGN (size
, 16);
4494 rtproc
= (PTR
) bfd_alloc (abfd
, size
);
4497 mips_elf_hash_table (info
)->procedure_count
= 0;
4501 mips_elf_hash_table (info
)->procedure_count
= count
+ 2;
4503 erp
= (struct rpdr_ext
*) rtproc
;
4504 memset (erp
, 0, sizeof (struct rpdr_ext
));
4506 str
= (char *) rtproc
+ sizeof (struct rpdr_ext
) * (count
+ 2);
4507 strcpy (str
, no_name_func
);
4508 str
+= strlen (no_name_func
) + 1;
4509 for (i
= 0; i
< count
; i
++)
4511 ecoff_swap_rpdr_out (abfd
, rpdr
+ i
, erp
+ i
);
4512 strcpy (str
, sv
[i
]);
4513 str
+= strlen (sv
[i
]) + 1;
4515 ecoff_put_off (abfd
, (bfd_vma
) -1, (bfd_byte
*) (erp
+ count
)->p_adr
);
4517 /* Set the size and contents of .rtproc section. */
4518 s
->_raw_size
= size
;
4519 s
->contents
= (bfd_byte
*) rtproc
;
4521 /* Skip this section later on (I don't think this currently
4522 matters, but someday it might). */
4523 s
->link_order_head
= (struct bfd_link_order
*) NULL
;
4552 /* A comparison routine used to sort .gptab entries. */
4555 gptab_compare (p1
, p2
)
4559 const Elf32_gptab
*a1
= (const Elf32_gptab
*) p1
;
4560 const Elf32_gptab
*a2
= (const Elf32_gptab
*) p2
;
4562 return a1
->gt_entry
.gt_g_value
- a2
->gt_entry
.gt_g_value
;
4565 /* We need to use a special link routine to handle the .reginfo and
4566 the .mdebug sections. We need to merge all instances of these
4567 sections together, not write them all out sequentially. */
4570 _bfd_mips_elf_final_link (abfd
, info
)
4572 struct bfd_link_info
*info
;
4576 struct bfd_link_order
*p
;
4577 asection
*reginfo_sec
, *mdebug_sec
, *gptab_data_sec
, *gptab_bss_sec
;
4578 asection
*rtproc_sec
;
4579 Elf32_RegInfo reginfo
;
4580 struct ecoff_debug_info debug
;
4581 const struct ecoff_debug_swap
*swap
4582 = get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
4583 HDRR
*symhdr
= &debug
.symbolic_header
;
4584 PTR mdebug_handle
= NULL
;
4589 static const char * const name
[] =
4591 ".text", ".init", ".fini", ".data",
4592 ".rodata", ".sdata", ".sbss", ".bss"
4594 static const int sc
[] =
4596 scText
, scInit
, scFini
, scData
,
4597 scRData
, scSData
, scSBss
, scBss
4600 /* If all the things we linked together were PIC, but we're
4601 producing an executable (rather than a shared object), then the
4602 resulting file is CPIC (i.e., it calls PIC code.) */
4604 && !info
->relocateable
4605 && elf_elfheader (abfd
)->e_flags
& EF_MIPS_PIC
)
4607 elf_elfheader (abfd
)->e_flags
&= ~EF_MIPS_PIC
;
4608 elf_elfheader (abfd
)->e_flags
|= EF_MIPS_CPIC
;
4611 /* We'd carefully arranged the dynamic symbol indices, and then the
4612 generic size_dynamic_sections renumbered them out from under us.
4613 Rather than trying somehow to prevent the renumbering, just do
4615 if (elf_hash_table (info
)->dynamic_sections_created
)
4619 struct mips_got_info
*g
;
4621 /* When we resort, we must tell mips_elf_sort_hash_table what
4622 the lowest index it may use is. That's the number of section
4623 symbols we're going to add. The generic ELF linker only
4624 adds these symbols when building a shared object. Note that
4625 we count the sections after (possibly) removing the .options
4627 if (!mips_elf_sort_hash_table (info
, (info
->shared
4628 ? bfd_count_sections (abfd
) + 1
4632 /* Make sure we didn't grow the global .got region. */
4633 dynobj
= elf_hash_table (info
)->dynobj
;
4634 got
= bfd_get_section_by_name (dynobj
, ".got");
4635 g
= (struct mips_got_info
*) elf_section_data (got
)->tdata
;
4637 if (g
->global_gotsym
!= NULL
)
4638 BFD_ASSERT ((elf_hash_table (info
)->dynsymcount
4639 - g
->global_gotsym
->dynindx
)
4640 <= g
->global_gotno
);
4643 /* On IRIX5, we omit the .options section. On IRIX6, however, we
4644 include it, even though we don't process it quite right. (Some
4645 entries are supposed to be merged.) Empirically, we seem to be
4646 better off including it then not. */
4647 if (IRIX_COMPAT (abfd
) == ict_irix5
|| IRIX_COMPAT (abfd
) == ict_none
)
4648 for (secpp
= &abfd
->sections
; *secpp
!= NULL
; secpp
= &(*secpp
)->next
)
4650 if (strcmp ((*secpp
)->name
, MIPS_ELF_OPTIONS_SECTION_NAME (abfd
)) == 0)
4652 for (p
= (*secpp
)->link_order_head
; p
!= NULL
; p
= p
->next
)
4653 if (p
->type
== bfd_indirect_link_order
)
4654 p
->u
.indirect
.section
->flags
&= ~SEC_HAS_CONTENTS
;
4655 (*secpp
)->link_order_head
= NULL
;
4656 *secpp
= (*secpp
)->next
;
4657 --abfd
->section_count
;
4663 /* Get a value for the GP register. */
4664 if (elf_gp (abfd
) == 0)
4666 struct bfd_link_hash_entry
*h
;
4668 h
= bfd_link_hash_lookup (info
->hash
, "_gp", false, false, true);
4669 if (h
!= (struct bfd_link_hash_entry
*) NULL
4670 && h
->type
== bfd_link_hash_defined
)
4671 elf_gp (abfd
) = (h
->u
.def
.value
4672 + h
->u
.def
.section
->output_section
->vma
4673 + h
->u
.def
.section
->output_offset
);
4674 else if (info
->relocateable
)
4678 /* Find the GP-relative section with the lowest offset. */
4680 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
4682 && (elf_section_data (o
)->this_hdr
.sh_flags
& SHF_MIPS_GPREL
))
4685 /* And calculate GP relative to that. */
4686 elf_gp (abfd
) = lo
+ ELF_MIPS_GP_OFFSET (abfd
);
4690 /* If the relocate_section function needs to do a reloc
4691 involving the GP value, it should make a reloc_dangerous
4692 callback to warn that GP is not defined. */
4696 /* Go through the sections and collect the .reginfo and .mdebug
4700 gptab_data_sec
= NULL
;
4701 gptab_bss_sec
= NULL
;
4702 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
4704 if (strcmp (o
->name
, ".reginfo") == 0)
4706 memset (®info
, 0, sizeof reginfo
);
4708 /* We have found the .reginfo section in the output file.
4709 Look through all the link_orders comprising it and merge
4710 the information together. */
4711 for (p
= o
->link_order_head
;
4712 p
!= (struct bfd_link_order
*) NULL
;
4715 asection
*input_section
;
4717 Elf32_External_RegInfo ext
;
4720 if (p
->type
!= bfd_indirect_link_order
)
4722 if (p
->type
== bfd_fill_link_order
)
4727 input_section
= p
->u
.indirect
.section
;
4728 input_bfd
= input_section
->owner
;
4730 /* The linker emulation code has probably clobbered the
4731 size to be zero bytes. */
4732 if (input_section
->_raw_size
== 0)
4733 input_section
->_raw_size
= sizeof (Elf32_External_RegInfo
);
4735 if (! bfd_get_section_contents (input_bfd
, input_section
,
4741 bfd_mips_elf32_swap_reginfo_in (input_bfd
, &ext
, &sub
);
4743 reginfo
.ri_gprmask
|= sub
.ri_gprmask
;
4744 reginfo
.ri_cprmask
[0] |= sub
.ri_cprmask
[0];
4745 reginfo
.ri_cprmask
[1] |= sub
.ri_cprmask
[1];
4746 reginfo
.ri_cprmask
[2] |= sub
.ri_cprmask
[2];
4747 reginfo
.ri_cprmask
[3] |= sub
.ri_cprmask
[3];
4749 /* ri_gp_value is set by the function
4750 mips_elf32_section_processing when the section is
4751 finally written out. */
4753 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4754 elf_link_input_bfd ignores this section. */
4755 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
4758 /* Size has been set in mips_elf_always_size_sections */
4759 BFD_ASSERT(o
->_raw_size
== sizeof (Elf32_External_RegInfo
));
4761 /* Skip this section later on (I don't think this currently
4762 matters, but someday it might). */
4763 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4768 if (strcmp (o
->name
, ".mdebug") == 0)
4770 struct extsym_info einfo
;
4772 /* We have found the .mdebug section in the output file.
4773 Look through all the link_orders comprising it and merge
4774 the information together. */
4775 symhdr
->magic
= swap
->sym_magic
;
4776 /* FIXME: What should the version stamp be? */
4778 symhdr
->ilineMax
= 0;
4782 symhdr
->isymMax
= 0;
4783 symhdr
->ioptMax
= 0;
4784 symhdr
->iauxMax
= 0;
4786 symhdr
->issExtMax
= 0;
4789 symhdr
->iextMax
= 0;
4791 /* We accumulate the debugging information itself in the
4792 debug_info structure. */
4794 debug
.external_dnr
= NULL
;
4795 debug
.external_pdr
= NULL
;
4796 debug
.external_sym
= NULL
;
4797 debug
.external_opt
= NULL
;
4798 debug
.external_aux
= NULL
;
4800 debug
.ssext
= debug
.ssext_end
= NULL
;
4801 debug
.external_fdr
= NULL
;
4802 debug
.external_rfd
= NULL
;
4803 debug
.external_ext
= debug
.external_ext_end
= NULL
;
4805 mdebug_handle
= bfd_ecoff_debug_init (abfd
, &debug
, swap
, info
);
4806 if (mdebug_handle
== (PTR
) NULL
)
4810 esym
.cobol_main
= 0;
4814 esym
.asym
.iss
= issNil
;
4815 esym
.asym
.st
= stLocal
;
4816 esym
.asym
.reserved
= 0;
4817 esym
.asym
.index
= indexNil
;
4819 for (i
= 0; i
< 8; i
++)
4821 esym
.asym
.sc
= sc
[i
];
4822 s
= bfd_get_section_by_name (abfd
, name
[i
]);
4825 esym
.asym
.value
= s
->vma
;
4826 last
= s
->vma
+ s
->_raw_size
;
4829 esym
.asym
.value
= last
;
4830 if (!bfd_ecoff_debug_one_external (abfd
, &debug
, swap
,
4835 for (p
= o
->link_order_head
;
4836 p
!= (struct bfd_link_order
*) NULL
;
4839 asection
*input_section
;
4841 const struct ecoff_debug_swap
*input_swap
;
4842 struct ecoff_debug_info input_debug
;
4846 if (p
->type
!= bfd_indirect_link_order
)
4848 if (p
->type
== bfd_fill_link_order
)
4853 input_section
= p
->u
.indirect
.section
;
4854 input_bfd
= input_section
->owner
;
4856 if (bfd_get_flavour (input_bfd
) != bfd_target_elf_flavour
4857 || (get_elf_backend_data (input_bfd
)
4858 ->elf_backend_ecoff_debug_swap
) == NULL
)
4860 /* I don't know what a non MIPS ELF bfd would be
4861 doing with a .mdebug section, but I don't really
4862 want to deal with it. */
4866 input_swap
= (get_elf_backend_data (input_bfd
)
4867 ->elf_backend_ecoff_debug_swap
);
4869 BFD_ASSERT (p
->size
== input_section
->_raw_size
);
4871 /* The ECOFF linking code expects that we have already
4872 read in the debugging information and set up an
4873 ecoff_debug_info structure, so we do that now. */
4874 if (! _bfd_mips_elf_read_ecoff_info (input_bfd
, input_section
,
4878 if (! (bfd_ecoff_debug_accumulate
4879 (mdebug_handle
, abfd
, &debug
, swap
, input_bfd
,
4880 &input_debug
, input_swap
, info
)))
4883 /* Loop through the external symbols. For each one with
4884 interesting information, try to find the symbol in
4885 the linker global hash table and save the information
4886 for the output external symbols. */
4887 eraw_src
= input_debug
.external_ext
;
4888 eraw_end
= (eraw_src
4889 + (input_debug
.symbolic_header
.iextMax
4890 * input_swap
->external_ext_size
));
4892 eraw_src
< eraw_end
;
4893 eraw_src
+= input_swap
->external_ext_size
)
4897 struct mips_elf_link_hash_entry
*h
;
4899 (*input_swap
->swap_ext_in
) (input_bfd
, (PTR
) eraw_src
, &ext
);
4900 if (ext
.asym
.sc
== scNil
4901 || ext
.asym
.sc
== scUndefined
4902 || ext
.asym
.sc
== scSUndefined
)
4905 name
= input_debug
.ssext
+ ext
.asym
.iss
;
4906 h
= mips_elf_link_hash_lookup (mips_elf_hash_table (info
),
4907 name
, false, false, true);
4908 if (h
== NULL
|| h
->esym
.ifd
!= -2)
4914 < input_debug
.symbolic_header
.ifdMax
);
4915 ext
.ifd
= input_debug
.ifdmap
[ext
.ifd
];
4921 /* Free up the information we just read. */
4922 free (input_debug
.line
);
4923 free (input_debug
.external_dnr
);
4924 free (input_debug
.external_pdr
);
4925 free (input_debug
.external_sym
);
4926 free (input_debug
.external_opt
);
4927 free (input_debug
.external_aux
);
4928 free (input_debug
.ss
);
4929 free (input_debug
.ssext
);
4930 free (input_debug
.external_fdr
);
4931 free (input_debug
.external_rfd
);
4932 free (input_debug
.external_ext
);
4934 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4935 elf_link_input_bfd ignores this section. */
4936 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
4939 if (SGI_COMPAT (abfd
) && info
->shared
)
4941 /* Create .rtproc section. */
4942 rtproc_sec
= bfd_get_section_by_name (abfd
, ".rtproc");
4943 if (rtproc_sec
== NULL
)
4945 flagword flags
= (SEC_HAS_CONTENTS
| SEC_IN_MEMORY
4946 | SEC_LINKER_CREATED
| SEC_READONLY
);
4948 rtproc_sec
= bfd_make_section (abfd
, ".rtproc");
4949 if (rtproc_sec
== NULL
4950 || ! bfd_set_section_flags (abfd
, rtproc_sec
, flags
)
4951 || ! bfd_set_section_alignment (abfd
, rtproc_sec
, 4))
4955 if (! mips_elf_create_procedure_table (mdebug_handle
, abfd
,
4956 info
, rtproc_sec
, &debug
))
4960 /* Build the external symbol information. */
4963 einfo
.debug
= &debug
;
4965 einfo
.failed
= false;
4966 mips_elf_link_hash_traverse (mips_elf_hash_table (info
),
4967 mips_elf_output_extsym
,
4972 /* Set the size of the .mdebug section. */
4973 o
->_raw_size
= bfd_ecoff_debug_size (abfd
, &debug
, swap
);
4975 /* Skip this section later on (I don't think this currently
4976 matters, but someday it might). */
4977 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4982 if (strncmp (o
->name
, ".gptab.", sizeof ".gptab." - 1) == 0)
4984 const char *subname
;
4987 Elf32_External_gptab
*ext_tab
;
4990 /* The .gptab.sdata and .gptab.sbss sections hold
4991 information describing how the small data area would
4992 change depending upon the -G switch. These sections
4993 not used in executables files. */
4994 if (! info
->relocateable
)
4998 for (p
= o
->link_order_head
;
4999 p
!= (struct bfd_link_order
*) NULL
;
5002 asection
*input_section
;
5004 if (p
->type
!= bfd_indirect_link_order
)
5006 if (p
->type
== bfd_fill_link_order
)
5011 input_section
= p
->u
.indirect
.section
;
5013 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5014 elf_link_input_bfd ignores this section. */
5015 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
5018 /* Skip this section later on (I don't think this
5019 currently matters, but someday it might). */
5020 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
5022 /* Really remove the section. */
5023 for (secpp
= &abfd
->sections
;
5025 secpp
= &(*secpp
)->next
)
5027 *secpp
= (*secpp
)->next
;
5028 --abfd
->section_count
;
5033 /* There is one gptab for initialized data, and one for
5034 uninitialized data. */
5035 if (strcmp (o
->name
, ".gptab.sdata") == 0)
5037 else if (strcmp (o
->name
, ".gptab.sbss") == 0)
5041 (*_bfd_error_handler
)
5042 (_("%s: illegal section name `%s'"),
5043 bfd_get_filename (abfd
), o
->name
);
5044 bfd_set_error (bfd_error_nonrepresentable_section
);
5048 /* The linker script always combines .gptab.data and
5049 .gptab.sdata into .gptab.sdata, and likewise for
5050 .gptab.bss and .gptab.sbss. It is possible that there is
5051 no .sdata or .sbss section in the output file, in which
5052 case we must change the name of the output section. */
5053 subname
= o
->name
+ sizeof ".gptab" - 1;
5054 if (bfd_get_section_by_name (abfd
, subname
) == NULL
)
5056 if (o
== gptab_data_sec
)
5057 o
->name
= ".gptab.data";
5059 o
->name
= ".gptab.bss";
5060 subname
= o
->name
+ sizeof ".gptab" - 1;
5061 BFD_ASSERT (bfd_get_section_by_name (abfd
, subname
) != NULL
);
5064 /* Set up the first entry. */
5066 tab
= (Elf32_gptab
*) bfd_malloc (c
* sizeof (Elf32_gptab
));
5069 tab
[0].gt_header
.gt_current_g_value
= elf_gp_size (abfd
);
5070 tab
[0].gt_header
.gt_unused
= 0;
5072 /* Combine the input sections. */
5073 for (p
= o
->link_order_head
;
5074 p
!= (struct bfd_link_order
*) NULL
;
5077 asection
*input_section
;
5081 bfd_size_type gpentry
;
5083 if (p
->type
!= bfd_indirect_link_order
)
5085 if (p
->type
== bfd_fill_link_order
)
5090 input_section
= p
->u
.indirect
.section
;
5091 input_bfd
= input_section
->owner
;
5093 /* Combine the gptab entries for this input section one
5094 by one. We know that the input gptab entries are
5095 sorted by ascending -G value. */
5096 size
= bfd_section_size (input_bfd
, input_section
);
5098 for (gpentry
= sizeof (Elf32_External_gptab
);
5100 gpentry
+= sizeof (Elf32_External_gptab
))
5102 Elf32_External_gptab ext_gptab
;
5103 Elf32_gptab int_gptab
;
5109 if (! (bfd_get_section_contents
5110 (input_bfd
, input_section
, (PTR
) &ext_gptab
,
5111 gpentry
, sizeof (Elf32_External_gptab
))))
5117 bfd_mips_elf32_swap_gptab_in (input_bfd
, &ext_gptab
,
5119 val
= int_gptab
.gt_entry
.gt_g_value
;
5120 add
= int_gptab
.gt_entry
.gt_bytes
- last
;
5123 for (look
= 1; look
< c
; look
++)
5125 if (tab
[look
].gt_entry
.gt_g_value
>= val
)
5126 tab
[look
].gt_entry
.gt_bytes
+= add
;
5128 if (tab
[look
].gt_entry
.gt_g_value
== val
)
5134 Elf32_gptab
*new_tab
;
5137 /* We need a new table entry. */
5138 new_tab
= ((Elf32_gptab
*)
5139 bfd_realloc ((PTR
) tab
,
5140 (c
+ 1) * sizeof (Elf32_gptab
)));
5141 if (new_tab
== NULL
)
5147 tab
[c
].gt_entry
.gt_g_value
= val
;
5148 tab
[c
].gt_entry
.gt_bytes
= add
;
5150 /* Merge in the size for the next smallest -G
5151 value, since that will be implied by this new
5154 for (look
= 1; look
< c
; look
++)
5156 if (tab
[look
].gt_entry
.gt_g_value
< val
5158 || (tab
[look
].gt_entry
.gt_g_value
5159 > tab
[max
].gt_entry
.gt_g_value
)))
5163 tab
[c
].gt_entry
.gt_bytes
+=
5164 tab
[max
].gt_entry
.gt_bytes
;
5169 last
= int_gptab
.gt_entry
.gt_bytes
;
5172 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5173 elf_link_input_bfd ignores this section. */
5174 input_section
->flags
&= ~SEC_HAS_CONTENTS
;
5177 /* The table must be sorted by -G value. */
5179 qsort (tab
+ 1, c
- 1, sizeof (tab
[0]), gptab_compare
);
5181 /* Swap out the table. */
5182 ext_tab
= ((Elf32_External_gptab
*)
5183 bfd_alloc (abfd
, c
* sizeof (Elf32_External_gptab
)));
5184 if (ext_tab
== NULL
)
5190 for (i
= 0; i
< c
; i
++)
5191 bfd_mips_elf32_swap_gptab_out (abfd
, tab
+ i
, ext_tab
+ i
);
5194 o
->_raw_size
= c
* sizeof (Elf32_External_gptab
);
5195 o
->contents
= (bfd_byte
*) ext_tab
;
5197 /* Skip this section later on (I don't think this currently
5198 matters, but someday it might). */
5199 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
5203 /* Invoke the regular ELF backend linker to do all the work. */
5204 if (ABI_64_P (abfd
))
5207 if (!bfd_elf64_bfd_final_link (abfd
, info
))
5214 else if (!bfd_elf32_bfd_final_link (abfd
, info
))
5217 /* Now write out the computed sections. */
5219 if (reginfo_sec
!= (asection
*) NULL
)
5221 Elf32_External_RegInfo ext
;
5223 bfd_mips_elf32_swap_reginfo_out (abfd
, ®info
, &ext
);
5224 if (! bfd_set_section_contents (abfd
, reginfo_sec
, (PTR
) &ext
,
5225 (file_ptr
) 0, sizeof ext
))
5229 if (mdebug_sec
!= (asection
*) NULL
)
5231 BFD_ASSERT (abfd
->output_has_begun
);
5232 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle
, abfd
, &debug
,
5234 mdebug_sec
->filepos
))
5237 bfd_ecoff_debug_free (mdebug_handle
, abfd
, &debug
, swap
, info
);
5240 if (gptab_data_sec
!= (asection
*) NULL
)
5242 if (! bfd_set_section_contents (abfd
, gptab_data_sec
,
5243 gptab_data_sec
->contents
,
5245 gptab_data_sec
->_raw_size
))
5249 if (gptab_bss_sec
!= (asection
*) NULL
)
5251 if (! bfd_set_section_contents (abfd
, gptab_bss_sec
,
5252 gptab_bss_sec
->contents
,
5254 gptab_bss_sec
->_raw_size
))
5258 if (SGI_COMPAT (abfd
))
5260 rtproc_sec
= bfd_get_section_by_name (abfd
, ".rtproc");
5261 if (rtproc_sec
!= NULL
)
5263 if (! bfd_set_section_contents (abfd
, rtproc_sec
,
5264 rtproc_sec
->contents
,
5266 rtproc_sec
->_raw_size
))
5274 /* This function is called via qsort() to sort the dynamic relocation
5275 entries by increasing r_symndx value. */
5278 sort_dynamic_relocs (arg1
, arg2
)
5282 const Elf32_External_Rel
*ext_reloc1
= (const Elf32_External_Rel
*) arg1
;
5283 const Elf32_External_Rel
*ext_reloc2
= (const Elf32_External_Rel
*) arg2
;
5285 Elf_Internal_Rel int_reloc1
;
5286 Elf_Internal_Rel int_reloc2
;
5288 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd
, ext_reloc1
, &int_reloc1
);
5289 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd
, ext_reloc2
, &int_reloc2
);
5291 return (ELF32_R_SYM (int_reloc1
.r_info
) - ELF32_R_SYM (int_reloc2
.r_info
));
5294 /* Returns the GOT section for ABFD. */
5297 mips_elf_got_section (abfd
)
5300 return bfd_get_section_by_name (abfd
, ".got");
5303 /* Returns the GOT information associated with the link indicated by
5304 INFO. If SGOTP is non-NULL, it is filled in with the GOT
5307 static struct mips_got_info
*
5308 mips_elf_got_info (abfd
, sgotp
)
5313 struct mips_got_info
*g
;
5315 sgot
= mips_elf_got_section (abfd
);
5316 BFD_ASSERT (sgot
!= NULL
);
5317 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
5318 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
5319 BFD_ASSERT (g
!= NULL
);
5326 /* Return whether a relocation is against a local symbol. */
5329 mips_elf_local_relocation_p (input_bfd
, relocation
, local_sections
,
5332 const Elf_Internal_Rela
*relocation
;
5333 asection
**local_sections
;
5334 boolean check_forced
;
5336 unsigned long r_symndx
;
5337 Elf_Internal_Shdr
*symtab_hdr
;
5338 struct mips_elf_link_hash_entry
*h
;
5341 r_symndx
= ELF32_R_SYM (relocation
->r_info
);
5342 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
5343 extsymoff
= (elf_bad_symtab (input_bfd
)) ? 0 : symtab_hdr
->sh_info
;
5345 if (r_symndx
< extsymoff
)
5347 if (elf_bad_symtab (input_bfd
) && local_sections
[r_symndx
] != NULL
)
5352 /* Look up the hash table to check whether the symbol
5353 was forced local. */
5354 h
= (struct mips_elf_link_hash_entry
*)
5355 elf_sym_hashes (input_bfd
) [r_symndx
- extsymoff
];
5356 /* Find the real hash-table entry for this symbol. */
5357 while (h
->root
.root
.type
== bfd_link_hash_indirect
5358 || h
->root
.root
.type
== bfd_link_hash_warning
)
5359 h
= (struct mips_elf_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
5360 if ((h
->root
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0)
5367 /* Sign-extend VALUE, which has the indicated number of BITS. */
5370 mips_elf_sign_extend (value
, bits
)
5374 if (value
& ((bfd_vma
) 1 << (bits
- 1)))
5375 /* VALUE is negative. */
5376 value
|= ((bfd_vma
) - 1) << bits
;
5381 /* Return non-zero if the indicated VALUE has overflowed the maximum
5382 range expressable by a signed number with the indicated number of
5386 mips_elf_overflow_p (value
, bits
)
5390 bfd_signed_vma svalue
= (bfd_signed_vma
) value
;
5392 if (svalue
> (1 << (bits
- 1)) - 1)
5393 /* The value is too big. */
5395 else if (svalue
< -(1 << (bits
- 1)))
5396 /* The value is too small. */
5403 /* Calculate the %high function. */
5406 mips_elf_high (value
)
5409 return ((value
+ (bfd_vma
) 0x8000) >> 16) & 0xffff;
5412 /* Calculate the %higher function. */
5415 mips_elf_higher (value
)
5416 bfd_vma value ATTRIBUTE_UNUSED
;
5419 return ((value
+ (bfd_vma
) 0x80008000) >> 32) & 0xffff;
5422 return (bfd_vma
) -1;
5426 /* Calculate the %highest function. */
5429 mips_elf_highest (value
)
5430 bfd_vma value ATTRIBUTE_UNUSED
;
5433 return ((value
+ (bfd_vma
) 0x800080008000) >> 48) & 0xffff;
5436 return (bfd_vma
) -1;
5440 /* Returns the GOT index for the global symbol indicated by H. */
5443 mips_elf_global_got_index (abfd
, h
)
5445 struct elf_link_hash_entry
*h
;
5449 struct mips_got_info
*g
;
5451 g
= mips_elf_got_info (abfd
, &sgot
);
5453 /* Once we determine the global GOT entry with the lowest dynamic
5454 symbol table index, we must put all dynamic symbols with greater
5455 indices into the GOT. That makes it easy to calculate the GOT
5457 BFD_ASSERT (h
->dynindx
>= g
->global_gotsym
->dynindx
);
5458 index
= ((h
->dynindx
- g
->global_gotsym
->dynindx
+ g
->local_gotno
)
5459 * MIPS_ELF_GOT_SIZE (abfd
));
5460 BFD_ASSERT (index
< sgot
->_raw_size
);
5465 /* Returns the offset for the entry at the INDEXth position
5469 mips_elf_got_offset_from_index (dynobj
, output_bfd
, index
)
5477 sgot
= mips_elf_got_section (dynobj
);
5478 gp
= _bfd_get_gp_value (output_bfd
);
5479 return (sgot
->output_section
->vma
+ sgot
->output_offset
+ index
-
5483 /* If H is a symbol that needs a global GOT entry, but has a dynamic
5484 symbol table index lower than any we've seen to date, record it for
5488 mips_elf_record_global_got_symbol (h
, info
, g
)
5489 struct elf_link_hash_entry
*h
;
5490 struct bfd_link_info
*info
;
5491 struct mips_got_info
*g ATTRIBUTE_UNUSED
;
5493 /* A global symbol in the GOT must also be in the dynamic symbol
5495 if (h
->dynindx
== -1
5496 && !bfd_elf32_link_record_dynamic_symbol (info
, h
))
5499 /* If we've already marked this entry as need GOT space, we don't
5500 need to do it again. */
5501 if (h
->got
.offset
!= (bfd_vma
) - 1)
5504 /* By setting this to a value other than -1, we are indicating that
5505 there needs to be a GOT entry for H. */
5511 /* This structure is passed to mips_elf_sort_hash_table_f when sorting
5512 the dynamic symbols. */
5514 struct mips_elf_hash_sort_data
5516 /* The symbol in the global GOT with the lowest dynamic symbol table
5518 struct elf_link_hash_entry
*low
;
5519 /* The least dynamic symbol table index corresponding to a symbol
5520 with a GOT entry. */
5521 long min_got_dynindx
;
5522 /* The greatest dynamic symbol table index not corresponding to a
5523 symbol without a GOT entry. */
5524 long max_non_got_dynindx
;
5527 /* If H needs a GOT entry, assign it the highest available dynamic
5528 index. Otherwise, assign it the lowest available dynamic
5532 mips_elf_sort_hash_table_f (h
, data
)
5533 struct mips_elf_link_hash_entry
*h
;
5536 struct mips_elf_hash_sort_data
*hsd
5537 = (struct mips_elf_hash_sort_data
*) data
;
5539 /* Symbols without dynamic symbol table entries aren't interesting
5541 if (h
->root
.dynindx
== -1)
5544 if (h
->root
.got
.offset
!= 0)
5545 h
->root
.dynindx
= hsd
->max_non_got_dynindx
++;
5548 h
->root
.dynindx
= --hsd
->min_got_dynindx
;
5549 hsd
->low
= (struct elf_link_hash_entry
*) h
;
5555 /* Sort the dynamic symbol table so that symbols that need GOT entries
5556 appear towards the end. This reduces the amount of GOT space
5557 required. MAX_LOCAL is used to set the number of local symbols
5558 known to be in the dynamic symbol table. During
5559 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
5560 section symbols are added and the count is higher. */
5563 mips_elf_sort_hash_table (info
, max_local
)
5564 struct bfd_link_info
*info
;
5565 unsigned long max_local
;
5567 struct mips_elf_hash_sort_data hsd
;
5568 struct mips_got_info
*g
;
5571 dynobj
= elf_hash_table (info
)->dynobj
;
5574 hsd
.min_got_dynindx
= elf_hash_table (info
)->dynsymcount
;
5575 hsd
.max_non_got_dynindx
= max_local
;
5576 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table
*)
5577 elf_hash_table (info
)),
5578 mips_elf_sort_hash_table_f
,
5581 /* There shoud have been enough room in the symbol table to
5582 accomodate both the GOT and non-GOT symbols. */
5583 BFD_ASSERT (hsd
.max_non_got_dynindx
<= hsd
.min_got_dynindx
);
5585 /* Now we know which dynamic symbol has the lowest dynamic symbol
5586 table index in the GOT. */
5587 g
= mips_elf_got_info (dynobj
, NULL
);
5588 g
->global_gotsym
= hsd
.low
;
5593 /* Create a local GOT entry for VALUE. Return the index of the entry,
5594 or -1 if it could not be created. */
5597 mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
)
5599 struct mips_got_info
*g
;
5603 if (g
->assigned_gotno
>= g
->local_gotno
)
5605 /* We didn't allocate enough space in the GOT. */
5606 (*_bfd_error_handler
)
5607 (_("not enough GOT space for local GOT entries"));
5608 bfd_set_error (bfd_error_bad_value
);
5609 return (bfd_vma
) -1;
5612 MIPS_ELF_PUT_WORD (abfd
, value
,
5614 + MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
));
5615 return MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
++;
5618 /* Returns the GOT offset at which the indicated address can be found.
5619 If there is not yet a GOT entry for this value, create one. Returns
5620 -1 if no satisfactory GOT offset can be found. */
5623 mips_elf_local_got_index (abfd
, info
, value
)
5625 struct bfd_link_info
*info
;
5629 struct mips_got_info
*g
;
5632 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5634 /* Look to see if we already have an appropriate entry. */
5635 for (entry
= (sgot
->contents
5636 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5637 entry
!= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5638 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5640 bfd_vma address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5641 if (address
== value
)
5642 return entry
- sgot
->contents
;
5645 return mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5648 /* Find a GOT entry that is within 32KB of the VALUE. These entries
5649 are supposed to be placed at small offsets in the GOT, i.e.,
5650 within 32KB of GP. Return the index into the GOT for this page,
5651 and store the offset from this entry to the desired address in
5652 OFFSETP, if it is non-NULL. */
5655 mips_elf_got_page (abfd
, info
, value
, offsetp
)
5657 struct bfd_link_info
*info
;
5662 struct mips_got_info
*g
;
5664 bfd_byte
*last_entry
;
5668 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5670 /* Look to see if we aleady have an appropriate entry. */
5671 last_entry
= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5672 for (entry
= (sgot
->contents
5673 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5674 entry
!= last_entry
;
5675 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5677 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5679 if (!mips_elf_overflow_p (value
- address
, 16))
5681 /* This entry will serve as the page pointer. We can add a
5682 16-bit number to it to get the actual address. */
5683 index
= entry
- sgot
->contents
;
5688 /* If we didn't have an appropriate entry, we create one now. */
5689 if (entry
== last_entry
)
5690 index
= mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5694 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5695 *offsetp
= value
- address
;
5701 /* Find a GOT entry whose higher-order 16 bits are the same as those
5702 for value. Return the index into the GOT for this entry. */
5705 mips_elf_got16_entry (abfd
, info
, value
, external
)
5707 struct bfd_link_info
*info
;
5712 struct mips_got_info
*g
;
5714 bfd_byte
*last_entry
;
5720 /* Although the ABI says that it is "the high-order 16 bits" that we
5721 want, it is really the %high value. The complete value is
5722 calculated with a `addiu' of a LO16 relocation, just as with a
5724 value
= mips_elf_high (value
) << 16;
5727 g
= mips_elf_got_info (elf_hash_table (info
)->dynobj
, &sgot
);
5729 /* Look to see if we already have an appropriate entry. */
5730 last_entry
= sgot
->contents
+ MIPS_ELF_GOT_SIZE (abfd
) * g
->assigned_gotno
;
5731 for (entry
= (sgot
->contents
5732 + MIPS_ELF_GOT_SIZE (abfd
) * MIPS_RESERVED_GOTNO
);
5733 entry
!= last_entry
;
5734 entry
+= MIPS_ELF_GOT_SIZE (abfd
))
5736 address
= MIPS_ELF_GET_WORD (abfd
, entry
);
5737 if (address
== value
)
5739 /* This entry has the right high-order 16 bits, and the low-order
5740 16 bits are set to zero. */
5741 index
= entry
- sgot
->contents
;
5746 /* If we didn't have an appropriate entry, we create one now. */
5747 if (entry
== last_entry
)
5748 index
= mips_elf_create_local_got_entry (abfd
, g
, sgot
, value
);
5753 /* Returns the first relocation of type r_type found, beginning with
5754 RELOCATION. RELEND is one-past-the-end of the relocation table. */
5756 static const Elf_Internal_Rela
*
5757 mips_elf_next_relocation (r_type
, relocation
, relend
)
5758 unsigned int r_type
;
5759 const Elf_Internal_Rela
*relocation
;
5760 const Elf_Internal_Rela
*relend
;
5762 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
5763 immediately following. However, for the IRIX6 ABI, the next
5764 relocation may be a composed relocation consisting of several
5765 relocations for the same address. In that case, the R_MIPS_LO16
5766 relocation may occur as one of these. We permit a similar
5767 extension in general, as that is useful for GCC. */
5768 while (relocation
< relend
)
5770 if (ELF32_R_TYPE (relocation
->r_info
) == r_type
)
5776 /* We didn't find it. */
5777 bfd_set_error (bfd_error_bad_value
);
5781 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
5782 is the original relocation, which is now being transformed into a
5783 dynamic relocation. The ADDENDP is adjusted if necessary; the
5784 caller should store the result in place of the original addend. */
5787 mips_elf_create_dynamic_relocation (output_bfd
, info
, rel
, h
, sec
,
5788 symbol
, addendp
, input_section
)
5790 struct bfd_link_info
*info
;
5791 const Elf_Internal_Rela
*rel
;
5792 struct mips_elf_link_hash_entry
*h
;
5796 asection
*input_section
;
5798 Elf_Internal_Rel outrel
;
5804 r_type
= ELF32_R_TYPE (rel
->r_info
);
5805 dynobj
= elf_hash_table (info
)->dynobj
;
5807 = bfd_get_section_by_name (dynobj
,
5808 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
));
5809 BFD_ASSERT (sreloc
!= NULL
);
5810 BFD_ASSERT (sreloc
->contents
!= NULL
);
5814 /* We begin by assuming that the offset for the dynamic relocation
5815 is the same as for the original relocation. We'll adjust this
5816 later to reflect the correct output offsets. */
5817 if (elf_section_data (input_section
)->stab_info
== NULL
)
5818 outrel
.r_offset
= rel
->r_offset
;
5821 /* Except that in a stab section things are more complex.
5822 Because we compress stab information, the offset given in the
5823 relocation may not be the one we want; we must let the stabs
5824 machinery tell us the offset. */
5826 = (_bfd_stab_section_offset
5827 (output_bfd
, &elf_hash_table (info
)->stab_info
,
5829 &elf_section_data (input_section
)->stab_info
,
5831 /* If we didn't need the relocation at all, this value will be
5833 if (outrel
.r_offset
== (bfd_vma
) -1)
5837 /* If we've decided to skip this relocation, just output an empty
5838 record. Note that R_MIPS_NONE == 0, so that this call to memset
5839 is a way of setting R_TYPE to R_MIPS_NONE. */
5841 memset (&outrel
, 0, sizeof (outrel
));
5845 bfd_vma section_offset
;
5847 /* We must now calculate the dynamic symbol table index to use
5848 in the relocation. */
5850 && (! info
->symbolic
|| (h
->root
.elf_link_hash_flags
5851 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
5853 indx
= h
->root
.dynindx
;
5854 /* h->root.dynindx may be -1 if this symbol was marked to
5861 if (sec
!= NULL
&& bfd_is_abs_section (sec
))
5863 else if (sec
== NULL
|| sec
->owner
== NULL
)
5865 bfd_set_error (bfd_error_bad_value
);
5870 indx
= elf_section_data (sec
->output_section
)->dynindx
;
5875 /* Figure out how far the target of the relocation is from
5876 the beginning of its section. */
5877 section_offset
= symbol
- sec
->output_section
->vma
;
5878 /* The relocation we're building is section-relative.
5879 Therefore, the original addend must be adjusted by the
5881 *addendp
+= section_offset
;
5882 /* Now, the relocation is just against the section. */
5883 symbol
= sec
->output_section
->vma
;
5886 /* If the relocation was previously an absolute relocation and
5887 this symbol will not be referred to by the relocation, we must
5888 adjust it by the value we give it in the dynamic symbol table.
5889 Otherwise leave the job up to the dynamic linker. */
5890 if (!indx
&& r_type
!= R_MIPS_REL32
)
5893 /* The relocation is always an REL32 relocation because we don't
5894 know where the shared library will wind up at load-time. */
5895 outrel
.r_info
= ELF32_R_INFO (indx
, R_MIPS_REL32
);
5897 /* Adjust the output offset of the relocation to reference the
5898 correct location in the output file. */
5899 outrel
.r_offset
+= (input_section
->output_section
->vma
5900 + input_section
->output_offset
);
5903 /* Put the relocation back out. We have to use the special
5904 relocation outputter in the 64-bit case since the 64-bit
5905 relocation format is non-standard. */
5906 if (ABI_64_P (output_bfd
))
5908 (*get_elf_backend_data (output_bfd
)->s
->swap_reloc_out
)
5909 (output_bfd
, &outrel
,
5911 + sreloc
->reloc_count
* sizeof (Elf64_Mips_External_Rel
)));
5914 bfd_elf32_swap_reloc_out (output_bfd
, &outrel
,
5915 (((Elf32_External_Rel
*)
5917 + sreloc
->reloc_count
));
5919 /* Record the index of the first relocation referencing H. This
5920 information is later emitted in the .msym section. */
5922 && (h
->min_dyn_reloc_index
== 0
5923 || sreloc
->reloc_count
< h
->min_dyn_reloc_index
))
5924 h
->min_dyn_reloc_index
= sreloc
->reloc_count
;
5926 /* We've now added another relocation. */
5927 ++sreloc
->reloc_count
;
5929 /* Make sure the output section is writable. The dynamic linker
5930 will be writing to it. */
5931 elf_section_data (input_section
->output_section
)->this_hdr
.sh_flags
5934 /* On IRIX5, make an entry of compact relocation info. */
5935 if (! skip
&& IRIX_COMPAT (output_bfd
) == ict_irix5
)
5937 asection
*scpt
= bfd_get_section_by_name (dynobj
, ".compact_rel");
5942 Elf32_crinfo cptrel
;
5944 mips_elf_set_cr_format (cptrel
, CRF_MIPS_LONG
);
5945 cptrel
.vaddr
= (rel
->r_offset
5946 + input_section
->output_section
->vma
5947 + input_section
->output_offset
);
5948 if (r_type
== R_MIPS_REL32
)
5949 mips_elf_set_cr_type (cptrel
, CRT_MIPS_REL32
);
5951 mips_elf_set_cr_type (cptrel
, CRT_MIPS_WORD
);
5952 mips_elf_set_cr_dist2to (cptrel
, 0);
5953 cptrel
.konst
= *addendp
;
5955 cr
= (scpt
->contents
5956 + sizeof (Elf32_External_compact_rel
));
5957 bfd_elf32_swap_crinfo_out (output_bfd
, &cptrel
,
5958 ((Elf32_External_crinfo
*) cr
5959 + scpt
->reloc_count
));
5960 ++scpt
->reloc_count
;
5967 /* Calculate the value produced by the RELOCATION (which comes from
5968 the INPUT_BFD). The ADDEND is the addend to use for this
5969 RELOCATION; RELOCATION->R_ADDEND is ignored.
5971 The result of the relocation calculation is stored in VALUEP.
5972 REQUIRE_JALXP indicates whether or not the opcode used with this
5973 relocation must be JALX.
5975 This function returns bfd_reloc_continue if the caller need take no
5976 further action regarding this relocation, bfd_reloc_notsupported if
5977 something goes dramatically wrong, bfd_reloc_overflow if an
5978 overflow occurs, and bfd_reloc_ok to indicate success. */
5980 static bfd_reloc_status_type
5981 mips_elf_calculate_relocation (abfd
,
5995 asection
*input_section
;
5996 struct bfd_link_info
*info
;
5997 const Elf_Internal_Rela
*relocation
;
5999 reloc_howto_type
*howto
;
6000 Elf_Internal_Sym
*local_syms
;
6001 asection
**local_sections
;
6004 boolean
*require_jalxp
;
6006 /* The eventual value we will return. */
6008 /* The address of the symbol against which the relocation is
6011 /* The final GP value to be used for the relocatable, executable, or
6012 shared object file being produced. */
6013 bfd_vma gp
= (bfd_vma
) - 1;
6014 /* The place (section offset or address) of the storage unit being
6017 /* The value of GP used to create the relocatable object. */
6018 bfd_vma gp0
= (bfd_vma
) - 1;
6019 /* The offset into the global offset table at which the address of
6020 the relocation entry symbol, adjusted by the addend, resides
6021 during execution. */
6022 bfd_vma g
= (bfd_vma
) - 1;
6023 /* The section in which the symbol referenced by the relocation is
6025 asection
*sec
= NULL
;
6026 struct mips_elf_link_hash_entry
*h
= NULL
;
6027 /* True if the symbol referred to by this relocation is a local
6030 /* True if the symbol referred to by this relocation is "_gp_disp". */
6031 boolean gp_disp_p
= false;
6032 Elf_Internal_Shdr
*symtab_hdr
;
6034 unsigned long r_symndx
;
6036 /* True if overflow occurred during the calculation of the
6037 relocation value. */
6038 boolean overflowed_p
;
6039 /* True if this relocation refers to a MIPS16 function. */
6040 boolean target_is_16_bit_code_p
= false;
6042 /* Parse the relocation. */
6043 r_symndx
= ELF32_R_SYM (relocation
->r_info
);
6044 r_type
= ELF32_R_TYPE (relocation
->r_info
);
6045 p
= (input_section
->output_section
->vma
6046 + input_section
->output_offset
6047 + relocation
->r_offset
);
6049 /* Assume that there will be no overflow. */
6050 overflowed_p
= false;
6052 /* Figure out whether or not the symbol is local, and get the offset
6053 used in the array of hash table entries. */
6054 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6055 local_p
= mips_elf_local_relocation_p (input_bfd
, relocation
,
6056 local_sections
, false);
6057 if (! elf_bad_symtab (input_bfd
))
6058 extsymoff
= symtab_hdr
->sh_info
;
6061 /* The symbol table does not follow the rule that local symbols
6062 must come before globals. */
6066 /* Figure out the value of the symbol. */
6069 Elf_Internal_Sym
*sym
;
6071 sym
= local_syms
+ r_symndx
;
6072 sec
= local_sections
[r_symndx
];
6074 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6075 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
6076 symbol
+= sym
->st_value
;
6078 /* MIPS16 text labels should be treated as odd. */
6079 if (sym
->st_other
== STO_MIPS16
)
6082 /* Record the name of this symbol, for our caller. */
6083 *namep
= bfd_elf_string_from_elf_section (input_bfd
,
6084 symtab_hdr
->sh_link
,
6087 *namep
= bfd_section_name (input_bfd
, sec
);
6089 target_is_16_bit_code_p
= (sym
->st_other
== STO_MIPS16
);
6093 /* For global symbols we look up the symbol in the hash-table. */
6094 h
= ((struct mips_elf_link_hash_entry
*)
6095 elf_sym_hashes (input_bfd
) [r_symndx
- extsymoff
]);
6096 /* Find the real hash-table entry for this symbol. */
6097 while (h
->root
.root
.type
== bfd_link_hash_indirect
6098 || h
->root
.root
.type
== bfd_link_hash_warning
)
6099 h
= (struct mips_elf_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
6101 /* Record the name of this symbol, for our caller. */
6102 *namep
= h
->root
.root
.root
.string
;
6104 /* See if this is the special _gp_disp symbol. Note that such a
6105 symbol must always be a global symbol. */
6106 if (strcmp (h
->root
.root
.root
.string
, "_gp_disp") == 0)
6108 /* Relocations against _gp_disp are permitted only with
6109 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6110 if (r_type
!= R_MIPS_HI16
&& r_type
!= R_MIPS_LO16
)
6111 return bfd_reloc_notsupported
;
6115 /* If this symbol is defined, calculate its address. Note that
6116 _gp_disp is a magic symbol, always implicitly defined by the
6117 linker, so it's inappropriate to check to see whether or not
6119 else if ((h
->root
.root
.type
== bfd_link_hash_defined
6120 || h
->root
.root
.type
== bfd_link_hash_defweak
)
6121 && h
->root
.root
.u
.def
.section
)
6123 sec
= h
->root
.root
.u
.def
.section
;
6124 if (sec
->output_section
)
6125 symbol
= (h
->root
.root
.u
.def
.value
6126 + sec
->output_section
->vma
6127 + sec
->output_offset
);
6129 symbol
= h
->root
.root
.u
.def
.value
;
6131 else if (h
->root
.root
.type
== bfd_link_hash_undefweak
)
6132 /* We allow relocations against undefined weak symbols, giving
6133 it the value zero, so that you can undefined weak functions
6134 and check to see if they exist by looking at their
6137 else if (info
->shared
&& !info
->symbolic
&& !info
->no_undefined
6138 && ELF_ST_VISIBILITY (h
->root
.other
) == STV_DEFAULT
)
6140 else if (strcmp (h
->root
.root
.root
.string
, "_DYNAMIC_LINK") == 0 ||
6141 strcmp (h
->root
.root
.root
.string
, "_DYNAMIC_LINKING") == 0)
6143 /* If this is a dynamic link, we should have created a
6144 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
6145 in in mips_elf_create_dynamic_sections.
6146 Otherwise, we should define the symbol with a value of 0.
6147 FIXME: It should probably get into the symbol table
6149 BFD_ASSERT (! info
->shared
);
6150 BFD_ASSERT (bfd_get_section_by_name (abfd
, ".dynamic") == NULL
);
6155 if (! ((*info
->callbacks
->undefined_symbol
)
6156 (info
, h
->root
.root
.root
.string
, input_bfd
,
6157 input_section
, relocation
->r_offset
,
6158 (!info
->shared
|| info
->no_undefined
6159 || ELF_ST_VISIBILITY (h
->root
.other
)))))
6160 return bfd_reloc_undefined
;
6164 target_is_16_bit_code_p
= (h
->root
.other
== STO_MIPS16
);
6167 /* If this is a 32-bit call to a 16-bit function with a stub, we
6168 need to redirect the call to the stub, unless we're already *in*
6170 if (r_type
!= R_MIPS16_26
&& !info
->relocateable
6171 && ((h
!= NULL
&& h
->fn_stub
!= NULL
)
6172 || (local_p
&& elf_tdata (input_bfd
)->local_stubs
!= NULL
6173 && elf_tdata (input_bfd
)->local_stubs
[r_symndx
] != NULL
))
6174 && !mips_elf_stub_section_p (input_bfd
, input_section
))
6176 /* This is a 32-bit call to a 16-bit function. We should
6177 have already noticed that we were going to need the
6180 sec
= elf_tdata (input_bfd
)->local_stubs
[r_symndx
];
6183 BFD_ASSERT (h
->need_fn_stub
);
6187 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6189 /* If this is a 16-bit call to a 32-bit function with a stub, we
6190 need to redirect the call to the stub. */
6191 else if (r_type
== R_MIPS16_26
&& !info
->relocateable
6193 && (h
->call_stub
!= NULL
|| h
->call_fp_stub
!= NULL
)
6194 && !target_is_16_bit_code_p
)
6196 /* If both call_stub and call_fp_stub are defined, we can figure
6197 out which one to use by seeing which one appears in the input
6199 if (h
->call_stub
!= NULL
&& h
->call_fp_stub
!= NULL
)
6204 for (o
= input_bfd
->sections
; o
!= NULL
; o
= o
->next
)
6206 if (strncmp (bfd_get_section_name (input_bfd
, o
),
6207 CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
6209 sec
= h
->call_fp_stub
;
6216 else if (h
->call_stub
!= NULL
)
6219 sec
= h
->call_fp_stub
;
6221 BFD_ASSERT (sec
->_raw_size
> 0);
6222 symbol
= sec
->output_section
->vma
+ sec
->output_offset
;
6225 /* Calls from 16-bit code to 32-bit code and vice versa require the
6226 special jalx instruction. */
6227 *require_jalxp
= (!info
->relocateable
6228 && ((r_type
== R_MIPS16_26
) != target_is_16_bit_code_p
));
6230 local_p
= mips_elf_local_relocation_p (input_bfd
, relocation
,
6231 local_sections
, true);
6233 /* If we haven't already determined the GOT offset, or the GP value,
6234 and we're going to need it, get it now. */
6239 case R_MIPS_GOT_DISP
:
6240 case R_MIPS_GOT_HI16
:
6241 case R_MIPS_CALL_HI16
:
6242 case R_MIPS_GOT_LO16
:
6243 case R_MIPS_CALL_LO16
:
6244 /* Find the index into the GOT where this value is located. */
6247 BFD_ASSERT (addend
== 0);
6248 g
= mips_elf_global_got_index
6249 (elf_hash_table (info
)->dynobj
,
6250 (struct elf_link_hash_entry
*) h
);
6251 if (! elf_hash_table(info
)->dynamic_sections_created
6253 && (info
->symbolic
|| h
->root
.dynindx
== -1)
6254 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)))
6256 /* This is a static link or a -Bsymbolic link. The
6257 symbol is defined locally, or was forced to be local.
6258 We must initialize this entry in the GOT. */
6259 asection
*sgot
= mips_elf_got_section(elf_hash_table
6261 MIPS_ELF_PUT_WORD (elf_hash_table (info
)->dynobj
,
6262 symbol
+ addend
, sgot
->contents
+ g
);
6265 else if (r_type
== R_MIPS_GOT16
|| r_type
== R_MIPS_CALL16
)
6266 /* There's no need to create a local GOT entry here; the
6267 calculation for a local GOT16 entry does not involve G. */
6271 g
= mips_elf_local_got_index (abfd
, info
, symbol
+ addend
);
6272 if (g
== (bfd_vma
) -1)
6276 /* Convert GOT indices to actual offsets. */
6277 g
= mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6283 case R_MIPS_GPREL16
:
6284 case R_MIPS_GPREL32
:
6285 case R_MIPS_LITERAL
:
6286 gp0
= _bfd_get_gp_value (input_bfd
);
6287 gp
= _bfd_get_gp_value (abfd
);
6294 /* Figure out what kind of relocation is being performed. */
6298 return bfd_reloc_continue
;
6301 value
= symbol
+ mips_elf_sign_extend (addend
, 16);
6302 overflowed_p
= mips_elf_overflow_p (value
, 16);
6309 || (elf_hash_table (info
)->dynamic_sections_created
6311 && ((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)
6313 && (input_section
->flags
& SEC_ALLOC
) != 0)
6315 /* If we're creating a shared library, or this relocation is
6316 against a symbol in a shared library, then we can't know
6317 where the symbol will end up. So, we create a relocation
6318 record in the output, and leave the job up to the dynamic
6321 if (!mips_elf_create_dynamic_relocation (abfd
,
6333 if (r_type
!= R_MIPS_REL32
)
6334 value
= symbol
+ addend
;
6338 value
&= howto
->dst_mask
;
6343 case R_MIPS_GNU_REL_LO16
:
6344 value
= symbol
+ addend
- p
;
6345 value
&= howto
->dst_mask
;
6348 case R_MIPS_GNU_REL16_S2
:
6349 value
= symbol
+ mips_elf_sign_extend (addend
<< 2, 18) - p
;
6350 overflowed_p
= mips_elf_overflow_p (value
, 18);
6351 value
= (value
>> 2) & howto
->dst_mask
;
6354 case R_MIPS_GNU_REL_HI16
:
6355 value
= mips_elf_high (addend
+ symbol
- p
);
6356 value
&= howto
->dst_mask
;
6360 /* The calculation for R_MIPS16_26 is just the same as for an
6361 R_MIPS_26. It's only the storage of the relocated field into
6362 the output file that's different. That's handled in
6363 mips_elf_perform_relocation. So, we just fall through to the
6364 R_MIPS_26 case here. */
6367 value
= (((addend
<< 2) | ((p
+ 4) & 0xf0000000)) + symbol
) >> 2;
6369 value
= (mips_elf_sign_extend (addend
<< 2, 28) + symbol
) >> 2;
6370 value
&= howto
->dst_mask
;
6376 value
= mips_elf_high (addend
+ symbol
);
6377 value
&= howto
->dst_mask
;
6381 value
= mips_elf_high (addend
+ gp
- p
);
6382 overflowed_p
= mips_elf_overflow_p (value
, 16);
6388 value
= (symbol
+ addend
) & howto
->dst_mask
;
6391 value
= addend
+ gp
- p
+ 4;
6392 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6393 for overflow. But, on, say, Irix 5, relocations against
6394 _gp_disp are normally generated from the .cpload
6395 pseudo-op. It generates code that normally looks like
6398 lui $gp,%hi(_gp_disp)
6399 addiu $gp,$gp,%lo(_gp_disp)
6402 Here $t9 holds the address of the function being called,
6403 as required by the MIPS ELF ABI. The R_MIPS_LO16
6404 relocation can easily overflow in this situation, but the
6405 R_MIPS_HI16 relocation will handle the overflow.
6406 Therefore, we consider this a bug in the MIPS ABI, and do
6407 not check for overflow here. */
6411 case R_MIPS_LITERAL
:
6412 /* Because we don't merge literal sections, we can handle this
6413 just like R_MIPS_GPREL16. In the long run, we should merge
6414 shared literals, and then we will need to additional work
6419 case R_MIPS16_GPREL
:
6420 /* The R_MIPS16_GPREL performs the same calculation as
6421 R_MIPS_GPREL16, but stores the relocated bits in a different
6422 order. We don't need to do anything special here; the
6423 differences are handled in mips_elf_perform_relocation. */
6424 case R_MIPS_GPREL16
:
6426 value
= mips_elf_sign_extend (addend
, 16) + symbol
+ gp0
- gp
;
6428 value
= mips_elf_sign_extend (addend
, 16) + symbol
- gp
;
6429 overflowed_p
= mips_elf_overflow_p (value
, 16);
6438 /* The special case is when the symbol is forced to be local. We
6439 need the full address in the GOT since no R_MIPS_LO16 relocation
6441 forced
= ! mips_elf_local_relocation_p (input_bfd
, relocation
,
6442 local_sections
, false);
6443 value
= mips_elf_got16_entry (abfd
, info
, symbol
+ addend
, forced
);
6444 if (value
== (bfd_vma
) -1)
6447 = mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6450 overflowed_p
= mips_elf_overflow_p (value
, 16);
6456 case R_MIPS_GOT_DISP
:
6458 overflowed_p
= mips_elf_overflow_p (value
, 16);
6461 case R_MIPS_GPREL32
:
6462 value
= (addend
+ symbol
+ gp0
- gp
) & howto
->dst_mask
;
6466 value
= mips_elf_sign_extend (addend
, 16) + symbol
- p
;
6467 value
= (bfd_vma
) ((bfd_signed_vma
) value
/ 4);
6468 overflowed_p
= mips_elf_overflow_p (value
, 16);
6471 case R_MIPS_GOT_HI16
:
6472 case R_MIPS_CALL_HI16
:
6473 /* We're allowed to handle these two relocations identically.
6474 The dynamic linker is allowed to handle the CALL relocations
6475 differently by creating a lazy evaluation stub. */
6477 value
= mips_elf_high (value
);
6478 value
&= howto
->dst_mask
;
6481 case R_MIPS_GOT_LO16
:
6482 case R_MIPS_CALL_LO16
:
6483 value
= g
& howto
->dst_mask
;
6486 case R_MIPS_GOT_PAGE
:
6487 value
= mips_elf_got_page (abfd
, info
, symbol
+ addend
, NULL
);
6488 if (value
== (bfd_vma
) -1)
6490 value
= mips_elf_got_offset_from_index (elf_hash_table (info
)->dynobj
,
6493 overflowed_p
= mips_elf_overflow_p (value
, 16);
6496 case R_MIPS_GOT_OFST
:
6497 mips_elf_got_page (abfd
, info
, symbol
+ addend
, &value
);
6498 overflowed_p
= mips_elf_overflow_p (value
, 16);
6502 value
= symbol
- addend
;
6503 value
&= howto
->dst_mask
;
6507 value
= mips_elf_higher (addend
+ symbol
);
6508 value
&= howto
->dst_mask
;
6511 case R_MIPS_HIGHEST
:
6512 value
= mips_elf_highest (addend
+ symbol
);
6513 value
&= howto
->dst_mask
;
6516 case R_MIPS_SCN_DISP
:
6517 value
= symbol
+ addend
- sec
->output_offset
;
6518 value
&= howto
->dst_mask
;
6523 /* Both of these may be ignored. R_MIPS_JALR is an optimization
6524 hint; we could improve performance by honoring that hint. */
6525 return bfd_reloc_continue
;
6527 case R_MIPS_GNU_VTINHERIT
:
6528 case R_MIPS_GNU_VTENTRY
:
6529 /* We don't do anything with these at present. */
6530 return bfd_reloc_continue
;
6533 /* An unrecognized relocation type. */
6534 return bfd_reloc_notsupported
;
6537 /* Store the VALUE for our caller. */
6539 return overflowed_p
? bfd_reloc_overflow
: bfd_reloc_ok
;
6542 /* Obtain the field relocated by RELOCATION. */
6545 mips_elf_obtain_contents (howto
, relocation
, input_bfd
, contents
)
6546 reloc_howto_type
*howto
;
6547 const Elf_Internal_Rela
*relocation
;
6552 bfd_byte
*location
= contents
+ relocation
->r_offset
;
6554 /* Obtain the bytes. */
6555 x
= bfd_get (8 * bfd_get_reloc_size (howto
), input_bfd
, location
);
6557 if ((ELF32_R_TYPE (relocation
->r_info
) == R_MIPS16_26
6558 || ELF32_R_TYPE (relocation
->r_info
) == R_MIPS16_GPREL
)
6559 && bfd_little_endian (input_bfd
))
6560 /* The two 16-bit words will be reversed on a little-endian
6561 system. See mips_elf_perform_relocation for more details. */
6562 x
= (((x
& 0xffff) << 16) | ((x
& 0xffff0000) >> 16));
6567 /* It has been determined that the result of the RELOCATION is the
6568 VALUE. Use HOWTO to place VALUE into the output file at the
6569 appropriate position. The SECTION is the section to which the
6570 relocation applies. If REQUIRE_JALX is true, then the opcode used
6571 for the relocation must be either JAL or JALX, and it is
6572 unconditionally converted to JALX.
6574 Returns false if anything goes wrong. */
6577 mips_elf_perform_relocation (info
, howto
, relocation
, value
,
6578 input_bfd
, input_section
,
6579 contents
, require_jalx
)
6580 struct bfd_link_info
*info
;
6581 reloc_howto_type
*howto
;
6582 const Elf_Internal_Rela
*relocation
;
6585 asection
*input_section
;
6587 boolean require_jalx
;
6591 int r_type
= ELF32_R_TYPE (relocation
->r_info
);
6593 /* Figure out where the relocation is occurring. */
6594 location
= contents
+ relocation
->r_offset
;
6596 /* Obtain the current value. */
6597 x
= mips_elf_obtain_contents (howto
, relocation
, input_bfd
, contents
);
6599 /* Clear the field we are setting. */
6600 x
&= ~howto
->dst_mask
;
6602 /* If this is the R_MIPS16_26 relocation, we must store the
6603 value in a funny way. */
6604 if (r_type
== R_MIPS16_26
)
6606 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
6607 Most mips16 instructions are 16 bits, but these instructions
6610 The format of these instructions is:
6612 +--------------+--------------------------------+
6613 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
6614 +--------------+--------------------------------+
6616 +-----------------------------------------------+
6618 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
6619 Note that the immediate value in the first word is swapped.
6621 When producing a relocateable object file, R_MIPS16_26 is
6622 handled mostly like R_MIPS_26. In particular, the addend is
6623 stored as a straight 26-bit value in a 32-bit instruction.
6624 (gas makes life simpler for itself by never adjusting a
6625 R_MIPS16_26 reloc to be against a section, so the addend is
6626 always zero). However, the 32 bit instruction is stored as 2
6627 16-bit values, rather than a single 32-bit value. In a
6628 big-endian file, the result is the same; in a little-endian
6629 file, the two 16-bit halves of the 32 bit value are swapped.
6630 This is so that a disassembler can recognize the jal
6633 When doing a final link, R_MIPS16_26 is treated as a 32 bit
6634 instruction stored as two 16-bit values. The addend A is the
6635 contents of the targ26 field. The calculation is the same as
6636 R_MIPS_26. When storing the calculated value, reorder the
6637 immediate value as shown above, and don't forget to store the
6638 value as two 16-bit values.
6640 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
6644 +--------+----------------------+
6648 +--------+----------------------+
6651 +----------+------+-------------+
6655 +----------+--------------------+
6656 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
6657 ((sub1 << 16) | sub2)).
6659 When producing a relocateable object file, the calculation is
6660 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6661 When producing a fully linked file, the calculation is
6662 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6663 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
6665 if (!info
->relocateable
)
6666 /* Shuffle the bits according to the formula above. */
6667 value
= (((value
& 0x1f0000) << 5)
6668 | ((value
& 0x3e00000) >> 5)
6669 | (value
& 0xffff));
6671 else if (r_type
== R_MIPS16_GPREL
)
6673 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
6674 mode. A typical instruction will have a format like this:
6676 +--------------+--------------------------------+
6677 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
6678 +--------------+--------------------------------+
6679 ! Major ! rx ! ry ! Imm 4:0 !
6680 +--------------+--------------------------------+
6682 EXTEND is the five bit value 11110. Major is the instruction
6685 This is handled exactly like R_MIPS_GPREL16, except that the
6686 addend is retrieved and stored as shown in this diagram; that
6687 is, the Imm fields above replace the V-rel16 field.
6689 All we need to do here is shuffle the bits appropriately. As
6690 above, the two 16-bit halves must be swapped on a
6691 little-endian system. */
6692 value
= (((value
& 0x7e0) << 16)
6693 | ((value
& 0xf800) << 5)
6697 /* Set the field. */
6698 x
|= (value
& howto
->dst_mask
);
6700 /* If required, turn JAL into JALX. */
6704 bfd_vma opcode
= x
>> 26;
6705 bfd_vma jalx_opcode
;
6707 /* Check to see if the opcode is already JAL or JALX. */
6708 if (r_type
== R_MIPS16_26
)
6710 ok
= ((opcode
== 0x6) || (opcode
== 0x7));
6715 ok
= ((opcode
== 0x3) || (opcode
== 0x1d));
6719 /* If the opcode is not JAL or JALX, there's a problem. */
6722 (*_bfd_error_handler
)
6723 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
6724 bfd_get_filename (input_bfd
),
6725 input_section
->name
,
6726 (unsigned long) relocation
->r_offset
);
6727 bfd_set_error (bfd_error_bad_value
);
6731 /* Make this the JALX opcode. */
6732 x
= (x
& ~(0x3f << 26)) | (jalx_opcode
<< 26);
6735 /* Swap the high- and low-order 16 bits on little-endian systems
6736 when doing a MIPS16 relocation. */
6737 if ((r_type
== R_MIPS16_GPREL
|| r_type
== R_MIPS16_26
)
6738 && bfd_little_endian (input_bfd
))
6739 x
= (((x
& 0xffff) << 16) | ((x
& 0xffff0000) >> 16));
6741 /* Put the value into the output. */
6742 bfd_put (8 * bfd_get_reloc_size (howto
), input_bfd
, x
, location
);
6746 /* Returns true if SECTION is a MIPS16 stub section. */
6749 mips_elf_stub_section_p (abfd
, section
)
6750 bfd
*abfd ATTRIBUTE_UNUSED
;
6753 const char *name
= bfd_get_section_name (abfd
, section
);
6755 return (strncmp (name
, FN_STUB
, sizeof FN_STUB
- 1) == 0
6756 || strncmp (name
, CALL_STUB
, sizeof CALL_STUB
- 1) == 0
6757 || strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0);
6760 /* Relocate a MIPS ELF section. */
6763 _bfd_mips_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6764 contents
, relocs
, local_syms
, local_sections
)
6766 struct bfd_link_info
*info
;
6768 asection
*input_section
;
6770 Elf_Internal_Rela
*relocs
;
6771 Elf_Internal_Sym
*local_syms
;
6772 asection
**local_sections
;
6774 Elf_Internal_Rela
*rel
;
6775 const Elf_Internal_Rela
*relend
;
6777 boolean use_saved_addend_p
= false;
6778 struct elf_backend_data
*bed
;
6780 bed
= get_elf_backend_data (output_bfd
);
6781 relend
= relocs
+ input_section
->reloc_count
* bed
->s
->int_rels_per_ext_rel
;
6782 for (rel
= relocs
; rel
< relend
; ++rel
)
6786 reloc_howto_type
*howto
;
6787 boolean require_jalx
;
6788 /* True if the relocation is a RELA relocation, rather than a
6790 boolean rela_relocation_p
= true;
6791 int r_type
= ELF32_R_TYPE (rel
->r_info
);
6792 const char * msg
= (const char *) NULL
;
6794 /* Find the relocation howto for this relocation. */
6795 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
6797 /* Some 32-bit code uses R_MIPS_64. In particular, people use
6798 64-bit code, but make sure all their addresses are in the
6799 lowermost or uppermost 32-bit section of the 64-bit address
6800 space. Thus, when they use an R_MIPS_64 they mean what is
6801 usually meant by R_MIPS_32, with the exception that the
6802 stored value is sign-extended to 64 bits. */
6803 howto
= elf_mips_howto_table
+ R_MIPS_32
;
6805 /* On big-endian systems, we need to lie about the position
6807 if (bfd_big_endian (input_bfd
))
6811 howto
= mips_rtype_to_howto (r_type
);
6813 if (!use_saved_addend_p
)
6815 Elf_Internal_Shdr
*rel_hdr
;
6817 /* If these relocations were originally of the REL variety,
6818 we must pull the addend out of the field that will be
6819 relocated. Otherwise, we simply use the contents of the
6820 RELA relocation. To determine which flavor or relocation
6821 this is, we depend on the fact that the INPUT_SECTION's
6822 REL_HDR is read before its REL_HDR2. */
6823 rel_hdr
= &elf_section_data (input_section
)->rel_hdr
;
6824 if ((size_t) (rel
- relocs
)
6825 >= (rel_hdr
->sh_size
/ rel_hdr
->sh_entsize
6826 * bed
->s
->int_rels_per_ext_rel
))
6827 rel_hdr
= elf_section_data (input_section
)->rel_hdr2
;
6828 if (rel_hdr
->sh_entsize
== MIPS_ELF_REL_SIZE (input_bfd
))
6830 /* Note that this is a REL relocation. */
6831 rela_relocation_p
= false;
6833 /* Get the addend, which is stored in the input file. */
6834 addend
= mips_elf_obtain_contents (howto
,
6838 addend
&= howto
->src_mask
;
6840 /* For some kinds of relocations, the ADDEND is a
6841 combination of the addend stored in two different
6843 if (r_type
== R_MIPS_HI16
6844 || r_type
== R_MIPS_GNU_REL_HI16
6845 || (r_type
== R_MIPS_GOT16
6846 && mips_elf_local_relocation_p (input_bfd
, rel
,
6847 local_sections
, false)))
6850 const Elf_Internal_Rela
*lo16_relocation
;
6851 reloc_howto_type
*lo16_howto
;
6854 /* The combined value is the sum of the HI16 addend,
6855 left-shifted by sixteen bits, and the LO16
6856 addend, sign extended. (Usually, the code does
6857 a `lui' of the HI16 value, and then an `addiu' of
6860 Scan ahead to find a matching LO16 relocation. */
6861 if (r_type
== R_MIPS_GNU_REL_HI16
)
6862 lo
= R_MIPS_GNU_REL_LO16
;
6866 = mips_elf_next_relocation (lo
, rel
, relend
);
6867 if (lo16_relocation
== NULL
)
6870 /* Obtain the addend kept there. */
6871 lo16_howto
= mips_rtype_to_howto (lo
);
6872 l
= mips_elf_obtain_contents (lo16_howto
,
6874 input_bfd
, contents
);
6875 l
&= lo16_howto
->src_mask
;
6876 l
= mips_elf_sign_extend (l
, 16);
6880 /* Compute the combined addend. */
6883 else if (r_type
== R_MIPS16_GPREL
)
6885 /* The addend is scrambled in the object file. See
6886 mips_elf_perform_relocation for details on the
6888 addend
= (((addend
& 0x1f0000) >> 5)
6889 | ((addend
& 0x7e00000) >> 16)
6894 addend
= rel
->r_addend
;
6897 if (info
->relocateable
)
6899 Elf_Internal_Sym
*sym
;
6900 unsigned long r_symndx
;
6902 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
)
6903 && bfd_big_endian (input_bfd
))
6906 /* Since we're just relocating, all we need to do is copy
6907 the relocations back out to the object file, unless
6908 they're against a section symbol, in which case we need
6909 to adjust by the section offset, or unless they're GP
6910 relative in which case we need to adjust by the amount
6911 that we're adjusting GP in this relocateable object. */
6913 if (!mips_elf_local_relocation_p (input_bfd
, rel
, local_sections
,
6915 /* There's nothing to do for non-local relocations. */
6918 if (r_type
== R_MIPS16_GPREL
6919 || r_type
== R_MIPS_GPREL16
6920 || r_type
== R_MIPS_GPREL32
6921 || r_type
== R_MIPS_LITERAL
)
6922 addend
-= (_bfd_get_gp_value (output_bfd
)
6923 - _bfd_get_gp_value (input_bfd
));
6924 else if (r_type
== R_MIPS_26
|| r_type
== R_MIPS16_26
6925 || r_type
== R_MIPS_GNU_REL16_S2
)
6926 /* The addend is stored without its two least
6927 significant bits (which are always zero.) In a
6928 non-relocateable link, calculate_relocation will do
6929 this shift; here, we must do it ourselves. */
6932 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6933 sym
= local_syms
+ r_symndx
;
6934 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
6935 /* Adjust the addend appropriately. */
6936 addend
+= local_sections
[r_symndx
]->output_offset
;
6938 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
6939 then we only want to write out the high-order 16 bits.
6940 The subsequent R_MIPS_LO16 will handle the low-order bits. */
6941 if (r_type
== R_MIPS_HI16
|| r_type
== R_MIPS_GOT16
6942 || r_type
== R_MIPS_GNU_REL_HI16
)
6943 addend
= mips_elf_high (addend
);
6944 /* If the relocation is for an R_MIPS_26 relocation, then
6945 the two low-order bits are not stored in the object file;
6946 they are implicitly zero. */
6947 else if (r_type
== R_MIPS_26
|| r_type
== R_MIPS16_26
6948 || r_type
== R_MIPS_GNU_REL16_S2
)
6951 if (rela_relocation_p
)
6952 /* If this is a RELA relocation, just update the addend.
6953 We have to cast away constness for REL. */
6954 rel
->r_addend
= addend
;
6957 /* Otherwise, we have to write the value back out. Note
6958 that we use the source mask, rather than the
6959 destination mask because the place to which we are
6960 writing will be source of the addend in the final
6962 addend
&= howto
->src_mask
;
6964 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
6965 /* See the comment above about using R_MIPS_64 in the 32-bit
6966 ABI. Here, we need to update the addend. It would be
6967 possible to get away with just using the R_MIPS_32 reloc
6968 but for endianness. */
6974 if (addend
& ((bfd_vma
) 1 << 31))
6975 sign_bits
= ((bfd_vma
) 1 << 32) - 1;
6979 /* If we don't know that we have a 64-bit type,
6980 do two separate stores. */
6981 if (bfd_big_endian (input_bfd
))
6983 /* Store the sign-bits (which are most significant)
6985 low_bits
= sign_bits
;
6991 high_bits
= sign_bits
;
6993 bfd_put_32 (input_bfd
, low_bits
,
6994 contents
+ rel
->r_offset
);
6995 bfd_put_32 (input_bfd
, high_bits
,
6996 contents
+ rel
->r_offset
+ 4);
7000 if (!mips_elf_perform_relocation (info
, howto
, rel
, addend
,
7001 input_bfd
, input_section
,
7006 /* Go on to the next relocation. */
7010 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7011 relocations for the same offset. In that case we are
7012 supposed to treat the output of each relocation as the addend
7014 if (rel
+ 1 < relend
7015 && rel
->r_offset
== rel
[1].r_offset
7016 && ELF32_R_TYPE (rel
[1].r_info
) != R_MIPS_NONE
)
7017 use_saved_addend_p
= true;
7019 use_saved_addend_p
= false;
7021 /* Figure out what value we are supposed to relocate. */
7022 switch (mips_elf_calculate_relocation (output_bfd
,
7035 case bfd_reloc_continue
:
7036 /* There's nothing to do. */
7039 case bfd_reloc_undefined
:
7040 /* mips_elf_calculate_relocation already called the
7041 undefined_symbol callback. There's no real point in
7042 trying to perform the relocation at this point, so we
7043 just skip ahead to the next relocation. */
7046 case bfd_reloc_notsupported
:
7047 msg
= _("internal error: unsupported relocation error");
7048 info
->callbacks
->warning
7049 (info
, msg
, name
, input_bfd
, input_section
, rel
->r_offset
);
7052 case bfd_reloc_overflow
:
7053 if (use_saved_addend_p
)
7054 /* Ignore overflow until we reach the last relocation for
7055 a given location. */
7059 BFD_ASSERT (name
!= NULL
);
7060 if (! ((*info
->callbacks
->reloc_overflow
)
7061 (info
, name
, howto
->name
, (bfd_vma
) 0,
7062 input_bfd
, input_section
, rel
->r_offset
)))
7075 /* If we've got another relocation for the address, keep going
7076 until we reach the last one. */
7077 if (use_saved_addend_p
)
7083 if (r_type
== R_MIPS_64
&& !ABI_64_P (output_bfd
))
7084 /* See the comment above about using R_MIPS_64 in the 32-bit
7085 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7086 that calculated the right value. Now, however, we
7087 sign-extend the 32-bit result to 64-bits, and store it as a
7088 64-bit value. We are especially generous here in that we
7089 go to extreme lengths to support this usage on systems with
7090 only a 32-bit VMA. */
7096 if (value
& ((bfd_vma
) 1 << 31))
7097 sign_bits
= ((bfd_vma
) 1 << 32) - 1;
7101 /* If we don't know that we have a 64-bit type,
7102 do two separate stores. */
7103 if (bfd_big_endian (input_bfd
))
7105 /* Undo what we did above. */
7107 /* Store the sign-bits (which are most significant)
7109 low_bits
= sign_bits
;
7115 high_bits
= sign_bits
;
7117 bfd_put_32 (input_bfd
, low_bits
,
7118 contents
+ rel
->r_offset
);
7119 bfd_put_32 (input_bfd
, high_bits
,
7120 contents
+ rel
->r_offset
+ 4);
7124 /* Actually perform the relocation. */
7125 if (!mips_elf_perform_relocation (info
, howto
, rel
, value
, input_bfd
,
7126 input_section
, contents
,
7134 /* This hook function is called before the linker writes out a global
7135 symbol. We mark symbols as small common if appropriate. This is
7136 also where we undo the increment of the value for a mips16 symbol. */
7139 _bfd_mips_elf_link_output_symbol_hook (abfd
, info
, name
, sym
, input_sec
)
7140 bfd
*abfd ATTRIBUTE_UNUSED
;
7141 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7142 const char *name ATTRIBUTE_UNUSED
;
7143 Elf_Internal_Sym
*sym
;
7144 asection
*input_sec
;
7146 /* If we see a common symbol, which implies a relocatable link, then
7147 if a symbol was small common in an input file, mark it as small
7148 common in the output file. */
7149 if (sym
->st_shndx
== SHN_COMMON
7150 && strcmp (input_sec
->name
, ".scommon") == 0)
7151 sym
->st_shndx
= SHN_MIPS_SCOMMON
;
7153 if (sym
->st_other
== STO_MIPS16
7154 && (sym
->st_value
& 1) != 0)
7160 /* Functions for the dynamic linker. */
7162 /* The name of the dynamic interpreter. This is put in the .interp
7165 #define ELF_DYNAMIC_INTERPRETER(abfd) \
7166 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7167 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7168 : "/usr/lib/libc.so.1")
7170 /* Create dynamic sections when linking against a dynamic object. */
7173 _bfd_mips_elf_create_dynamic_sections (abfd
, info
)
7175 struct bfd_link_info
*info
;
7177 struct elf_link_hash_entry
*h
;
7179 register asection
*s
;
7180 const char * const *namep
;
7182 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
7183 | SEC_LINKER_CREATED
| SEC_READONLY
);
7185 /* Mips ABI requests the .dynamic section to be read only. */
7186 s
= bfd_get_section_by_name (abfd
, ".dynamic");
7189 if (! bfd_set_section_flags (abfd
, s
, flags
))
7193 /* We need to create .got section. */
7194 if (! mips_elf_create_got_section (abfd
, info
))
7197 /* Create the .msym section on IRIX6. It is used by the dynamic
7198 linker to speed up dynamic relocations, and to avoid computing
7199 the ELF hash for symbols. */
7200 if (IRIX_COMPAT (abfd
) == ict_irix6
7201 && !mips_elf_create_msym_section (abfd
))
7204 /* Create .stub section. */
7205 if (bfd_get_section_by_name (abfd
,
7206 MIPS_ELF_STUB_SECTION_NAME (abfd
)) == NULL
)
7208 s
= bfd_make_section (abfd
, MIPS_ELF_STUB_SECTION_NAME (abfd
));
7210 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_CODE
)
7211 || ! bfd_set_section_alignment (abfd
, s
,
7212 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7216 if ((IRIX_COMPAT (abfd
) == ict_irix5
|| IRIX_COMPAT (abfd
) == ict_none
)
7218 && bfd_get_section_by_name (abfd
, ".rld_map") == NULL
)
7220 s
= bfd_make_section (abfd
, ".rld_map");
7222 || ! bfd_set_section_flags (abfd
, s
, flags
& ~SEC_READONLY
)
7223 || ! bfd_set_section_alignment (abfd
, s
,
7224 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7228 /* On IRIX5, we adjust add some additional symbols and change the
7229 alignments of several sections. There is no ABI documentation
7230 indicating that this is necessary on IRIX6, nor any evidence that
7231 the linker takes such action. */
7232 if (IRIX_COMPAT (abfd
) == ict_irix5
)
7234 for (namep
= mips_elf_dynsym_rtproc_names
; *namep
!= NULL
; namep
++)
7237 if (! (_bfd_generic_link_add_one_symbol
7238 (info
, abfd
, *namep
, BSF_GLOBAL
, bfd_und_section_ptr
,
7239 (bfd_vma
) 0, (const char *) NULL
, false,
7240 get_elf_backend_data (abfd
)->collect
,
7241 (struct bfd_link_hash_entry
**) &h
)))
7243 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7244 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7245 h
->type
= STT_SECTION
;
7247 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7251 /* We need to create a .compact_rel section. */
7252 if (SGI_COMPAT (abfd
))
7254 if (!mips_elf_create_compact_rel_section (abfd
, info
))
7258 /* Change aligments of some sections. */
7259 s
= bfd_get_section_by_name (abfd
, ".hash");
7261 bfd_set_section_alignment (abfd
, s
, 4);
7262 s
= bfd_get_section_by_name (abfd
, ".dynsym");
7264 bfd_set_section_alignment (abfd
, s
, 4);
7265 s
= bfd_get_section_by_name (abfd
, ".dynstr");
7267 bfd_set_section_alignment (abfd
, s
, 4);
7268 s
= bfd_get_section_by_name (abfd
, ".reginfo");
7270 bfd_set_section_alignment (abfd
, s
, 4);
7271 s
= bfd_get_section_by_name (abfd
, ".dynamic");
7273 bfd_set_section_alignment (abfd
, s
, 4);
7279 if (SGI_COMPAT (abfd
))
7281 if (!(_bfd_generic_link_add_one_symbol
7282 (info
, abfd
, "_DYNAMIC_LINK", BSF_GLOBAL
, bfd_abs_section_ptr
,
7283 (bfd_vma
) 0, (const char *) NULL
, false,
7284 get_elf_backend_data (abfd
)->collect
,
7285 (struct bfd_link_hash_entry
**) &h
)))
7290 /* For normal mips it is _DYNAMIC_LINKING. */
7291 if (!(_bfd_generic_link_add_one_symbol
7292 (info
, abfd
, "_DYNAMIC_LINKING", BSF_GLOBAL
,
7293 bfd_abs_section_ptr
, (bfd_vma
) 0, (const char *) NULL
, false,
7294 get_elf_backend_data (abfd
)->collect
,
7295 (struct bfd_link_hash_entry
**) &h
)))
7298 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7299 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7300 h
->type
= STT_SECTION
;
7302 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7305 if (! mips_elf_hash_table (info
)->use_rld_obj_head
)
7307 /* __rld_map is a four byte word located in the .data section
7308 and is filled in by the rtld to contain a pointer to
7309 the _r_debug structure. Its symbol value will be set in
7310 mips_elf_finish_dynamic_symbol. */
7311 s
= bfd_get_section_by_name (abfd
, ".rld_map");
7312 BFD_ASSERT (s
!= NULL
);
7315 if (SGI_COMPAT (abfd
))
7317 if (!(_bfd_generic_link_add_one_symbol
7318 (info
, abfd
, "__rld_map", BSF_GLOBAL
, s
,
7319 (bfd_vma
) 0, (const char *) NULL
, false,
7320 get_elf_backend_data (abfd
)->collect
,
7321 (struct bfd_link_hash_entry
**) &h
)))
7326 /* For normal mips the symbol is __RLD_MAP. */
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
)))
7334 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7335 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7336 h
->type
= STT_OBJECT
;
7338 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7346 /* Create the .compact_rel section. */
7349 mips_elf_create_compact_rel_section (abfd
, info
)
7351 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7354 register asection
*s
;
7356 if (bfd_get_section_by_name (abfd
, ".compact_rel") == NULL
)
7358 flags
= (SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
7361 s
= bfd_make_section (abfd
, ".compact_rel");
7363 || ! bfd_set_section_flags (abfd
, s
, flags
)
7364 || ! bfd_set_section_alignment (abfd
, s
,
7365 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7368 s
->_raw_size
= sizeof (Elf32_External_compact_rel
);
7374 /* Create the .got section to hold the global offset table. */
7377 mips_elf_create_got_section (abfd
, info
)
7379 struct bfd_link_info
*info
;
7382 register asection
*s
;
7383 struct elf_link_hash_entry
*h
;
7384 struct mips_got_info
*g
;
7386 /* This function may be called more than once. */
7387 if (mips_elf_got_section (abfd
))
7390 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
7391 | SEC_LINKER_CREATED
);
7393 s
= bfd_make_section (abfd
, ".got");
7395 || ! bfd_set_section_flags (abfd
, s
, flags
)
7396 || ! bfd_set_section_alignment (abfd
, s
, 4))
7399 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7400 linker script because we don't want to define the symbol if we
7401 are not creating a global offset table. */
7403 if (! (_bfd_generic_link_add_one_symbol
7404 (info
, abfd
, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL
, s
,
7405 (bfd_vma
) 0, (const char *) NULL
, false,
7406 get_elf_backend_data (abfd
)->collect
,
7407 (struct bfd_link_hash_entry
**) &h
)))
7409 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
7410 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
7411 h
->type
= STT_OBJECT
;
7414 && ! bfd_elf32_link_record_dynamic_symbol (info
, h
))
7417 /* The first several global offset table entries are reserved. */
7418 s
->_raw_size
= MIPS_RESERVED_GOTNO
* MIPS_ELF_GOT_SIZE (abfd
);
7420 g
= (struct mips_got_info
*) bfd_alloc (abfd
,
7421 sizeof (struct mips_got_info
));
7424 g
->global_gotsym
= NULL
;
7425 g
->local_gotno
= MIPS_RESERVED_GOTNO
;
7426 g
->assigned_gotno
= MIPS_RESERVED_GOTNO
;
7427 if (elf_section_data (s
) == NULL
)
7430 (PTR
) bfd_zalloc (abfd
, sizeof (struct bfd_elf_section_data
));
7431 if (elf_section_data (s
) == NULL
)
7434 elf_section_data (s
)->tdata
= (PTR
) g
;
7435 elf_section_data (s
)->this_hdr
.sh_flags
7436 |= SHF_ALLOC
| SHF_WRITE
| SHF_MIPS_GPREL
;
7441 /* Returns the .msym section for ABFD, creating it if it does not
7442 already exist. Returns NULL to indicate error. */
7445 mips_elf_create_msym_section (abfd
)
7450 s
= bfd_get_section_by_name (abfd
, MIPS_ELF_MSYM_SECTION_NAME (abfd
));
7453 s
= bfd_make_section (abfd
, MIPS_ELF_MSYM_SECTION_NAME (abfd
));
7455 || !bfd_set_section_flags (abfd
, s
,
7459 | SEC_LINKER_CREATED
7461 || !bfd_set_section_alignment (abfd
, s
,
7462 MIPS_ELF_LOG_FILE_ALIGN (abfd
)))
7469 /* Add room for N relocations to the .rel.dyn section in ABFD. */
7472 mips_elf_allocate_dynamic_relocations (abfd
, n
)
7478 s
= bfd_get_section_by_name (abfd
, MIPS_ELF_REL_DYN_SECTION_NAME (abfd
));
7479 BFD_ASSERT (s
!= NULL
);
7481 if (s
->_raw_size
== 0)
7483 /* Make room for a null element. */
7484 s
->_raw_size
+= MIPS_ELF_REL_SIZE (abfd
);
7487 s
->_raw_size
+= n
* MIPS_ELF_REL_SIZE (abfd
);
7490 /* Look through the relocs for a section during the first phase, and
7491 allocate space in the global offset table. */
7494 _bfd_mips_elf_check_relocs (abfd
, info
, sec
, relocs
)
7496 struct bfd_link_info
*info
;
7498 const Elf_Internal_Rela
*relocs
;
7502 Elf_Internal_Shdr
*symtab_hdr
;
7503 struct elf_link_hash_entry
**sym_hashes
;
7504 struct mips_got_info
*g
;
7506 const Elf_Internal_Rela
*rel
;
7507 const Elf_Internal_Rela
*rel_end
;
7510 struct elf_backend_data
*bed
;
7512 if (info
->relocateable
)
7515 dynobj
= elf_hash_table (info
)->dynobj
;
7516 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
7517 sym_hashes
= elf_sym_hashes (abfd
);
7518 extsymoff
= (elf_bad_symtab (abfd
)) ? 0 : symtab_hdr
->sh_info
;
7520 /* Check for the mips16 stub sections. */
7522 name
= bfd_get_section_name (abfd
, sec
);
7523 if (strncmp (name
, FN_STUB
, sizeof FN_STUB
- 1) == 0)
7525 unsigned long r_symndx
;
7527 /* Look at the relocation information to figure out which symbol
7530 r_symndx
= ELF32_R_SYM (relocs
->r_info
);
7532 if (r_symndx
< extsymoff
7533 || sym_hashes
[r_symndx
- extsymoff
] == NULL
)
7537 /* This stub is for a local symbol. This stub will only be
7538 needed if there is some relocation in this BFD, other
7539 than a 16 bit function call, which refers to this symbol. */
7540 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
7542 Elf_Internal_Rela
*sec_relocs
;
7543 const Elf_Internal_Rela
*r
, *rend
;
7545 /* We can ignore stub sections when looking for relocs. */
7546 if ((o
->flags
& SEC_RELOC
) == 0
7547 || o
->reloc_count
== 0
7548 || strncmp (bfd_get_section_name (abfd
, o
), FN_STUB
,
7549 sizeof FN_STUB
- 1) == 0
7550 || strncmp (bfd_get_section_name (abfd
, o
), CALL_STUB
,
7551 sizeof CALL_STUB
- 1) == 0
7552 || strncmp (bfd_get_section_name (abfd
, o
), CALL_FP_STUB
,
7553 sizeof CALL_FP_STUB
- 1) == 0)
7556 sec_relocs
= (_bfd_elf32_link_read_relocs
7557 (abfd
, o
, (PTR
) NULL
,
7558 (Elf_Internal_Rela
*) NULL
,
7559 info
->keep_memory
));
7560 if (sec_relocs
== NULL
)
7563 rend
= sec_relocs
+ o
->reloc_count
;
7564 for (r
= sec_relocs
; r
< rend
; r
++)
7565 if (ELF32_R_SYM (r
->r_info
) == r_symndx
7566 && ELF32_R_TYPE (r
->r_info
) != R_MIPS16_26
)
7569 if (! info
->keep_memory
)
7578 /* There is no non-call reloc for this stub, so we do
7579 not need it. Since this function is called before
7580 the linker maps input sections to output sections, we
7581 can easily discard it by setting the SEC_EXCLUDE
7583 sec
->flags
|= SEC_EXCLUDE
;
7587 /* Record this stub in an array of local symbol stubs for
7589 if (elf_tdata (abfd
)->local_stubs
== NULL
)
7591 unsigned long symcount
;
7594 if (elf_bad_symtab (abfd
))
7595 symcount
= symtab_hdr
->sh_size
/ symtab_hdr
->sh_entsize
;
7597 symcount
= symtab_hdr
->sh_info
;
7598 n
= (asection
**) bfd_zalloc (abfd
,
7599 symcount
* sizeof (asection
*));
7602 elf_tdata (abfd
)->local_stubs
= n
;
7605 elf_tdata (abfd
)->local_stubs
[r_symndx
] = sec
;
7607 /* We don't need to set mips16_stubs_seen in this case.
7608 That flag is used to see whether we need to look through
7609 the global symbol table for stubs. We don't need to set
7610 it here, because we just have a local stub. */
7614 struct mips_elf_link_hash_entry
*h
;
7616 h
= ((struct mips_elf_link_hash_entry
*)
7617 sym_hashes
[r_symndx
- extsymoff
]);
7619 /* H is the symbol this stub is for. */
7622 mips_elf_hash_table (info
)->mips16_stubs_seen
= true;
7625 else if (strncmp (name
, CALL_STUB
, sizeof CALL_STUB
- 1) == 0
7626 || strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
7628 unsigned long r_symndx
;
7629 struct mips_elf_link_hash_entry
*h
;
7632 /* Look at the relocation information to figure out which symbol
7635 r_symndx
= ELF32_R_SYM (relocs
->r_info
);
7637 if (r_symndx
< extsymoff
7638 || sym_hashes
[r_symndx
- extsymoff
] == NULL
)
7640 /* This stub was actually built for a static symbol defined
7641 in the same file. We assume that all static symbols in
7642 mips16 code are themselves mips16, so we can simply
7643 discard this stub. Since this function is called before
7644 the linker maps input sections to output sections, we can
7645 easily discard it by setting the SEC_EXCLUDE flag. */
7646 sec
->flags
|= SEC_EXCLUDE
;
7650 h
= ((struct mips_elf_link_hash_entry
*)
7651 sym_hashes
[r_symndx
- extsymoff
]);
7653 /* H is the symbol this stub is for. */
7655 if (strncmp (name
, CALL_FP_STUB
, sizeof CALL_FP_STUB
- 1) == 0)
7656 loc
= &h
->call_fp_stub
;
7658 loc
= &h
->call_stub
;
7660 /* If we already have an appropriate stub for this function, we
7661 don't need another one, so we can discard this one. Since
7662 this function is called before the linker maps input sections
7663 to output sections, we can easily discard it by setting the
7664 SEC_EXCLUDE flag. We can also discard this section if we
7665 happen to already know that this is a mips16 function; it is
7666 not necessary to check this here, as it is checked later, but
7667 it is slightly faster to check now. */
7668 if (*loc
!= NULL
|| h
->root
.other
== STO_MIPS16
)
7670 sec
->flags
|= SEC_EXCLUDE
;
7675 mips_elf_hash_table (info
)->mips16_stubs_seen
= true;
7685 sgot
= mips_elf_got_section (dynobj
);
7690 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
7691 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
7692 BFD_ASSERT (g
!= NULL
);
7697 bed
= get_elf_backend_data (abfd
);
7698 rel_end
= relocs
+ sec
->reloc_count
* bed
->s
->int_rels_per_ext_rel
;
7699 for (rel
= relocs
; rel
< rel_end
; ++rel
)
7701 unsigned long r_symndx
;
7703 struct elf_link_hash_entry
*h
;
7705 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7706 r_type
= ELF32_R_TYPE (rel
->r_info
);
7708 if (r_symndx
< extsymoff
)
7710 else if (r_symndx
>= extsymoff
+ (symtab_hdr
->sh_size
/ symtab_hdr
->sh_entsize
))
7712 (*_bfd_error_handler
)
7713 (_("Malformed reloc detected for section %s"), name
);
7714 bfd_set_error (bfd_error_bad_value
);
7719 h
= sym_hashes
[r_symndx
- extsymoff
];
7721 /* This may be an indirect symbol created because of a version. */
7724 while (h
->root
.type
== bfd_link_hash_indirect
)
7725 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7729 /* Some relocs require a global offset table. */
7730 if (dynobj
== NULL
|| sgot
== NULL
)
7736 case R_MIPS_CALL_HI16
:
7737 case R_MIPS_CALL_LO16
:
7738 case R_MIPS_GOT_HI16
:
7739 case R_MIPS_GOT_LO16
:
7740 case R_MIPS_GOT_PAGE
:
7741 case R_MIPS_GOT_OFST
:
7742 case R_MIPS_GOT_DISP
:
7744 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
7745 if (! mips_elf_create_got_section (dynobj
, info
))
7747 g
= mips_elf_got_info (dynobj
, &sgot
);
7754 && (info
->shared
|| h
!= NULL
)
7755 && (sec
->flags
& SEC_ALLOC
) != 0)
7756 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
7764 if (!h
&& (r_type
== R_MIPS_CALL_LO16
7765 || r_type
== R_MIPS_GOT_LO16
7766 || r_type
== R_MIPS_GOT_DISP
))
7768 /* We may need a local GOT entry for this relocation. We
7769 don't count R_MIPS_GOT_PAGE because we can estimate the
7770 maximum number of pages needed by looking at the size of
7771 the segment. Similar comments apply to R_MIPS_GOT16 and
7772 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
7773 R_MIPS_CALL_HI16 because these are always followed by an
7774 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
7776 This estimation is very conservative since we can merge
7777 duplicate entries in the GOT. In order to be less
7778 conservative, we could actually build the GOT here,
7779 rather than in relocate_section. */
7781 sgot
->_raw_size
+= MIPS_ELF_GOT_SIZE (dynobj
);
7789 (*_bfd_error_handler
)
7790 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
7791 bfd_get_filename (abfd
), (unsigned long) rel
->r_offset
);
7792 bfd_set_error (bfd_error_bad_value
);
7797 case R_MIPS_CALL_HI16
:
7798 case R_MIPS_CALL_LO16
:
7801 /* This symbol requires a global offset table entry. */
7802 if (!mips_elf_record_global_got_symbol (h
, info
, g
))
7805 /* We need a stub, not a plt entry for the undefined
7806 function. But we record it as if it needs plt. See
7807 elf_adjust_dynamic_symbol in elflink.h. */
7808 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
7814 case R_MIPS_GOT_HI16
:
7815 case R_MIPS_GOT_LO16
:
7816 case R_MIPS_GOT_DISP
:
7817 /* This symbol requires a global offset table entry. */
7818 if (h
&& !mips_elf_record_global_got_symbol (h
, info
, g
))
7825 if ((info
->shared
|| h
!= NULL
)
7826 && (sec
->flags
& SEC_ALLOC
) != 0)
7830 const char *name
= MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
);
7832 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7835 sreloc
= bfd_make_section (dynobj
, name
);
7837 || ! bfd_set_section_flags (dynobj
, sreloc
,
7842 | SEC_LINKER_CREATED
7844 || ! bfd_set_section_alignment (dynobj
, sreloc
,
7850 /* When creating a shared object, we must copy these
7851 reloc types into the output file as R_MIPS_REL32
7852 relocs. We make room for this reloc in the
7853 .rel.dyn reloc section. */
7854 mips_elf_allocate_dynamic_relocations (dynobj
, 1);
7857 struct mips_elf_link_hash_entry
*hmips
;
7859 /* We only need to copy this reloc if the symbol is
7860 defined in a dynamic object. */
7861 hmips
= (struct mips_elf_link_hash_entry
*) h
;
7862 ++hmips
->possibly_dynamic_relocs
;
7865 /* Even though we don't directly need a GOT entry for
7866 this symbol, a symbol must have a dynamic symbol
7867 table index greater that DT_MIPS_GOTSYM if there are
7868 dynamic relocations against it. */
7870 && !mips_elf_record_global_got_symbol (h
, info
, g
))
7874 if (SGI_COMPAT (abfd
))
7875 mips_elf_hash_table (info
)->compact_rel_size
+=
7876 sizeof (Elf32_External_crinfo
);
7880 case R_MIPS_GPREL16
:
7881 case R_MIPS_LITERAL
:
7882 case R_MIPS_GPREL32
:
7883 if (SGI_COMPAT (abfd
))
7884 mips_elf_hash_table (info
)->compact_rel_size
+=
7885 sizeof (Elf32_External_crinfo
);
7888 /* This relocation describes the C++ object vtable hierarchy.
7889 Reconstruct it for later use during GC. */
7890 case R_MIPS_GNU_VTINHERIT
:
7891 if (!_bfd_elf32_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7895 /* This relocation describes which C++ vtable entries are actually
7896 used. Record for later use during GC. */
7897 case R_MIPS_GNU_VTENTRY
:
7898 if (!_bfd_elf32_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7906 /* We must not create a stub for a symbol that has relocations
7907 related to taking the function's address. */
7913 struct mips_elf_link_hash_entry
*mh
;
7915 mh
= (struct mips_elf_link_hash_entry
*) h
;
7916 mh
->no_fn_stub
= true;
7920 case R_MIPS_CALL_HI16
:
7921 case R_MIPS_CALL_LO16
:
7925 /* If this reloc is not a 16 bit call, and it has a global
7926 symbol, then we will need the fn_stub if there is one.
7927 References from a stub section do not count. */
7929 && r_type
!= R_MIPS16_26
7930 && strncmp (bfd_get_section_name (abfd
, sec
), FN_STUB
,
7931 sizeof FN_STUB
- 1) != 0
7932 && strncmp (bfd_get_section_name (abfd
, sec
), CALL_STUB
,
7933 sizeof CALL_STUB
- 1) != 0
7934 && strncmp (bfd_get_section_name (abfd
, sec
), CALL_FP_STUB
,
7935 sizeof CALL_FP_STUB
- 1) != 0)
7937 struct mips_elf_link_hash_entry
*mh
;
7939 mh
= (struct mips_elf_link_hash_entry
*) h
;
7940 mh
->need_fn_stub
= true;
7947 /* Return the section that should be marked against GC for a given
7951 _bfd_mips_elf_gc_mark_hook (abfd
, info
, rel
, h
, sym
)
7953 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
7954 Elf_Internal_Rela
*rel
;
7955 struct elf_link_hash_entry
*h
;
7956 Elf_Internal_Sym
*sym
;
7958 /* ??? Do mips16 stub sections need to be handled special? */
7962 switch (ELF32_R_TYPE (rel
->r_info
))
7964 case R_MIPS_GNU_VTINHERIT
:
7965 case R_MIPS_GNU_VTENTRY
:
7969 switch (h
->root
.type
)
7971 case bfd_link_hash_defined
:
7972 case bfd_link_hash_defweak
:
7973 return h
->root
.u
.def
.section
;
7975 case bfd_link_hash_common
:
7976 return h
->root
.u
.c
.p
->section
;
7985 if (!(elf_bad_symtab (abfd
)
7986 && ELF_ST_BIND (sym
->st_info
) != STB_LOCAL
)
7987 && ! ((sym
->st_shndx
<= 0 || sym
->st_shndx
>= SHN_LORESERVE
)
7988 && sym
->st_shndx
!= SHN_COMMON
))
7990 return bfd_section_from_elf_index (abfd
, sym
->st_shndx
);
7997 /* Update the got entry reference counts for the section being removed. */
8000 _bfd_mips_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
8001 bfd
*abfd ATTRIBUTE_UNUSED
;
8002 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
8003 asection
*sec ATTRIBUTE_UNUSED
;
8004 const Elf_Internal_Rela
*relocs ATTRIBUTE_UNUSED
;
8007 Elf_Internal_Shdr
*symtab_hdr
;
8008 struct elf_link_hash_entry
**sym_hashes
;
8009 bfd_signed_vma
*local_got_refcounts
;
8010 const Elf_Internal_Rela
*rel
, *relend
;
8011 unsigned long r_symndx
;
8012 struct elf_link_hash_entry
*h
;
8014 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8015 sym_hashes
= elf_sym_hashes (abfd
);
8016 local_got_refcounts
= elf_local_got_refcounts (abfd
);
8018 relend
= relocs
+ sec
->reloc_count
;
8019 for (rel
= relocs
; rel
< relend
; rel
++)
8020 switch (ELF32_R_TYPE (rel
->r_info
))
8024 case R_MIPS_CALL_HI16
:
8025 case R_MIPS_CALL_LO16
:
8026 case R_MIPS_GOT_HI16
:
8027 case R_MIPS_GOT_LO16
:
8028 /* ??? It would seem that the existing MIPS code does no sort
8029 of reference counting or whatnot on its GOT and PLT entries,
8030 so it is not possible to garbage collect them at this time. */
8041 /* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8042 hiding the old indirect symbol. Process additional relocation
8046 _bfd_mips_elf_copy_indirect_symbol (dir
, ind
)
8047 struct elf_link_hash_entry
*dir
, *ind
;
8049 struct mips_elf_link_hash_entry
*dirmips
, *indmips
;
8051 _bfd_elf_link_hash_copy_indirect (dir
, ind
);
8053 dirmips
= (struct mips_elf_link_hash_entry
*) dir
;
8054 indmips
= (struct mips_elf_link_hash_entry
*) ind
;
8055 dirmips
->possibly_dynamic_relocs
+= indmips
->possibly_dynamic_relocs
;
8056 if (dirmips
->min_dyn_reloc_index
== 0
8057 || (indmips
->min_dyn_reloc_index
!= 0
8058 && indmips
->min_dyn_reloc_index
< dirmips
->min_dyn_reloc_index
))
8059 dirmips
->min_dyn_reloc_index
= indmips
->min_dyn_reloc_index
;
8060 if (indmips
->no_fn_stub
)
8061 dirmips
->no_fn_stub
= true;
8064 /* Adjust a symbol defined by a dynamic object and referenced by a
8065 regular object. The current definition is in some section of the
8066 dynamic object, but we're not including those sections. We have to
8067 change the definition to something the rest of the link can
8071 _bfd_mips_elf_adjust_dynamic_symbol (info
, h
)
8072 struct bfd_link_info
*info
;
8073 struct elf_link_hash_entry
*h
;
8076 struct mips_elf_link_hash_entry
*hmips
;
8079 dynobj
= elf_hash_table (info
)->dynobj
;
8081 /* Make sure we know what is going on here. */
8082 BFD_ASSERT (dynobj
!= NULL
8083 && ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
)
8084 || h
->weakdef
!= NULL
8085 || ((h
->elf_link_hash_flags
8086 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
8087 && (h
->elf_link_hash_flags
8088 & ELF_LINK_HASH_REF_REGULAR
) != 0
8089 && (h
->elf_link_hash_flags
8090 & ELF_LINK_HASH_DEF_REGULAR
) == 0)));
8092 /* If this symbol is defined in a dynamic object, we need to copy
8093 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8095 hmips
= (struct mips_elf_link_hash_entry
*) h
;
8096 if (! info
->relocateable
8097 && hmips
->possibly_dynamic_relocs
!= 0
8098 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
8099 mips_elf_allocate_dynamic_relocations (dynobj
,
8100 hmips
->possibly_dynamic_relocs
);
8102 /* For a function, create a stub, if allowed. */
8103 if (! hmips
->no_fn_stub
8104 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
8106 if (! elf_hash_table (info
)->dynamic_sections_created
)
8109 /* If this symbol is not defined in a regular file, then set
8110 the symbol to the stub location. This is required to make
8111 function pointers compare as equal between the normal
8112 executable and the shared library. */
8113 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
8115 /* We need .stub section. */
8116 s
= bfd_get_section_by_name (dynobj
,
8117 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
8118 BFD_ASSERT (s
!= NULL
);
8120 h
->root
.u
.def
.section
= s
;
8121 h
->root
.u
.def
.value
= s
->_raw_size
;
8123 /* XXX Write this stub address somewhere. */
8124 h
->plt
.offset
= s
->_raw_size
;
8126 /* Make room for this stub code. */
8127 s
->_raw_size
+= MIPS_FUNCTION_STUB_SIZE
;
8129 /* The last half word of the stub will be filled with the index
8130 of this symbol in .dynsym section. */
8134 else if ((h
->type
== STT_FUNC
)
8135 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) == 0)
8137 /* This will set the entry for this symbol in the GOT to 0, and
8138 the dynamic linker will take care of this. */
8139 h
->root
.u
.def
.value
= 0;
8143 /* If this is a weak symbol, and there is a real definition, the
8144 processor independent code will have arranged for us to see the
8145 real definition first, and we can just use the same value. */
8146 if (h
->weakdef
!= NULL
)
8148 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
8149 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
8150 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
8151 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
8155 /* This is a reference to a symbol defined by a dynamic object which
8156 is not a function. */
8161 /* This function is called after all the input files have been read,
8162 and the input sections have been assigned to output sections. We
8163 check for any mips16 stub sections that we can discard. */
8165 static boolean mips_elf_check_mips16_stubs
8166 PARAMS ((struct mips_elf_link_hash_entry
*, PTR
));
8169 _bfd_mips_elf_always_size_sections (output_bfd
, info
)
8171 struct bfd_link_info
*info
;
8175 /* The .reginfo section has a fixed size. */
8176 ri
= bfd_get_section_by_name (output_bfd
, ".reginfo");
8178 bfd_set_section_size (output_bfd
, ri
, sizeof (Elf32_External_RegInfo
));
8180 if (info
->relocateable
8181 || ! mips_elf_hash_table (info
)->mips16_stubs_seen
)
8184 mips_elf_link_hash_traverse (mips_elf_hash_table (info
),
8185 mips_elf_check_mips16_stubs
,
8191 /* Check the mips16 stubs for a particular symbol, and see if we can
8195 mips_elf_check_mips16_stubs (h
, data
)
8196 struct mips_elf_link_hash_entry
*h
;
8197 PTR data ATTRIBUTE_UNUSED
;
8199 if (h
->fn_stub
!= NULL
8200 && ! h
->need_fn_stub
)
8202 /* We don't need the fn_stub; the only references to this symbol
8203 are 16 bit calls. Clobber the size to 0 to prevent it from
8204 being included in the link. */
8205 h
->fn_stub
->_raw_size
= 0;
8206 h
->fn_stub
->_cooked_size
= 0;
8207 h
->fn_stub
->flags
&= ~SEC_RELOC
;
8208 h
->fn_stub
->reloc_count
= 0;
8209 h
->fn_stub
->flags
|= SEC_EXCLUDE
;
8212 if (h
->call_stub
!= NULL
8213 && h
->root
.other
== STO_MIPS16
)
8215 /* We don't need the call_stub; this is a 16 bit function, so
8216 calls from other 16 bit functions are OK. Clobber the size
8217 to 0 to prevent it from being included in the link. */
8218 h
->call_stub
->_raw_size
= 0;
8219 h
->call_stub
->_cooked_size
= 0;
8220 h
->call_stub
->flags
&= ~SEC_RELOC
;
8221 h
->call_stub
->reloc_count
= 0;
8222 h
->call_stub
->flags
|= SEC_EXCLUDE
;
8225 if (h
->call_fp_stub
!= NULL
8226 && h
->root
.other
== STO_MIPS16
)
8228 /* We don't need the call_stub; this is a 16 bit function, so
8229 calls from other 16 bit functions are OK. Clobber the size
8230 to 0 to prevent it from being included in the link. */
8231 h
->call_fp_stub
->_raw_size
= 0;
8232 h
->call_fp_stub
->_cooked_size
= 0;
8233 h
->call_fp_stub
->flags
&= ~SEC_RELOC
;
8234 h
->call_fp_stub
->reloc_count
= 0;
8235 h
->call_fp_stub
->flags
|= SEC_EXCLUDE
;
8241 /* Set the sizes of the dynamic sections. */
8244 _bfd_mips_elf_size_dynamic_sections (output_bfd
, info
)
8246 struct bfd_link_info
*info
;
8251 struct mips_got_info
*g
= NULL
;
8253 dynobj
= elf_hash_table (info
)->dynobj
;
8254 BFD_ASSERT (dynobj
!= NULL
);
8256 if (elf_hash_table (info
)->dynamic_sections_created
)
8258 /* Set the contents of the .interp section to the interpreter. */
8261 s
= bfd_get_section_by_name (dynobj
, ".interp");
8262 BFD_ASSERT (s
!= NULL
);
8264 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd
)) + 1;
8266 = (bfd_byte
*) ELF_DYNAMIC_INTERPRETER (output_bfd
);
8270 /* The check_relocs and adjust_dynamic_symbol entry points have
8271 determined the sizes of the various dynamic sections. Allocate
8274 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
8279 /* It's OK to base decisions on the section name, because none
8280 of the dynobj section names depend upon the input files. */
8281 name
= bfd_get_section_name (dynobj
, s
);
8283 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
8288 if (strncmp (name
, ".rel", 4) == 0)
8290 if (s
->_raw_size
== 0)
8292 /* We only strip the section if the output section name
8293 has the same name. Otherwise, there might be several
8294 input sections for this output section. FIXME: This
8295 code is probably not needed these days anyhow, since
8296 the linker now does not create empty output sections. */
8297 if (s
->output_section
!= NULL
8299 bfd_get_section_name (s
->output_section
->owner
,
8300 s
->output_section
)) == 0)
8305 const char *outname
;
8308 /* If this relocation section applies to a read only
8309 section, then we probably need a DT_TEXTREL entry.
8310 If the relocation section is .rel.dyn, we always
8311 assert a DT_TEXTREL entry rather than testing whether
8312 there exists a relocation to a read only section or
8314 outname
= bfd_get_section_name (output_bfd
,
8316 target
= bfd_get_section_by_name (output_bfd
, outname
+ 4);
8318 && (target
->flags
& SEC_READONLY
) != 0
8319 && (target
->flags
& SEC_ALLOC
) != 0)
8321 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
)) == 0)
8324 /* We use the reloc_count field as a counter if we need
8325 to copy relocs into the output file. */
8327 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd
)) != 0)
8331 else if (strncmp (name
, ".got", 4) == 0)
8334 bfd_size_type loadable_size
= 0;
8335 bfd_size_type local_gotno
;
8338 BFD_ASSERT (elf_section_data (s
) != NULL
);
8339 g
= (struct mips_got_info
*) elf_section_data (s
)->tdata
;
8340 BFD_ASSERT (g
!= NULL
);
8342 /* Calculate the total loadable size of the output. That
8343 will give us the maximum number of GOT_PAGE entries
8345 for (sub
= info
->input_bfds
; sub
; sub
= sub
->link_next
)
8347 asection
*subsection
;
8349 for (subsection
= sub
->sections
;
8351 subsection
= subsection
->next
)
8353 if ((subsection
->flags
& SEC_ALLOC
) == 0)
8355 loadable_size
+= (subsection
->_raw_size
+ 0xf) & ~0xf;
8358 loadable_size
+= MIPS_FUNCTION_STUB_SIZE
;
8360 /* Assume there are two loadable segments consisting of
8361 contiguous sections. Is 5 enough? */
8362 local_gotno
= (loadable_size
>> 16) + 5;
8363 if (IRIX_COMPAT (output_bfd
) == ict_irix6
)
8364 /* It's possible we will need GOT_PAGE entries as well as
8365 GOT16 entries. Often, these will be able to share GOT
8366 entries, but not always. */
8369 g
->local_gotno
+= local_gotno
;
8370 s
->_raw_size
+= local_gotno
* MIPS_ELF_GOT_SIZE (dynobj
);
8372 /* There has to be a global GOT entry for every symbol with
8373 a dynamic symbol table index of DT_MIPS_GOTSYM or
8374 higher. Therefore, it make sense to put those symbols
8375 that need GOT entries at the end of the symbol table. We
8377 if (!mips_elf_sort_hash_table (info
, 1))
8380 if (g
->global_gotsym
!= NULL
)
8381 i
= elf_hash_table (info
)->dynsymcount
- g
->global_gotsym
->dynindx
;
8383 /* If there are no global symbols, or none requiring
8384 relocations, then GLOBAL_GOTSYM will be NULL. */
8386 g
->global_gotno
= i
;
8387 s
->_raw_size
+= i
* MIPS_ELF_GOT_SIZE (dynobj
);
8389 else if (strcmp (name
, MIPS_ELF_STUB_SECTION_NAME (output_bfd
)) == 0)
8391 /* Irix rld assumes that the function stub isn't at the end
8392 of .text section. So put a dummy. XXX */
8393 s
->_raw_size
+= MIPS_FUNCTION_STUB_SIZE
;
8395 else if (! info
->shared
8396 && ! mips_elf_hash_table (info
)->use_rld_obj_head
8397 && strncmp (name
, ".rld_map", 8) == 0)
8399 /* We add a room for __rld_map. It will be filled in by the
8400 rtld to contain a pointer to the _r_debug structure. */
8403 else if (SGI_COMPAT (output_bfd
)
8404 && strncmp (name
, ".compact_rel", 12) == 0)
8405 s
->_raw_size
+= mips_elf_hash_table (info
)->compact_rel_size
;
8406 else if (strcmp (name
, MIPS_ELF_MSYM_SECTION_NAME (output_bfd
))
8408 s
->_raw_size
= (sizeof (Elf32_External_Msym
)
8409 * (elf_hash_table (info
)->dynsymcount
8410 + bfd_count_sections (output_bfd
)));
8411 else if (strncmp (name
, ".init", 5) != 0)
8413 /* It's not one of our sections, so don't allocate space. */
8419 _bfd_strip_section_from_output (info
, s
);
8423 /* Allocate memory for the section contents. */
8424 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
8425 if (s
->contents
== NULL
&& s
->_raw_size
!= 0)
8427 bfd_set_error (bfd_error_no_memory
);
8432 if (elf_hash_table (info
)->dynamic_sections_created
)
8434 /* Add some entries to the .dynamic section. We fill in the
8435 values later, in elf_mips_finish_dynamic_sections, but we
8436 must add the entries now so that we get the correct size for
8437 the .dynamic section. The DT_DEBUG entry is filled in by the
8438 dynamic linker and used by the debugger. */
8441 /* SGI object has the equivalence of DT_DEBUG in the
8442 DT_MIPS_RLD_MAP entry. */
8443 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_RLD_MAP
, 0))
8445 if (!SGI_COMPAT (output_bfd
))
8447 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_DEBUG
, 0))
8453 /* Shared libraries on traditional mips have DT_DEBUG. */
8454 if (!SGI_COMPAT (output_bfd
))
8456 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_DEBUG
, 0))
8460 if (reltext
&& SGI_COMPAT (output_bfd
))
8462 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_TEXTREL
, 0))
8464 info
->flags
|= DF_TEXTREL
;
8467 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_PLTGOT
, 0))
8470 if (bfd_get_section_by_name (dynobj
,
8471 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
)))
8473 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_REL
, 0))
8476 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_RELSZ
, 0))
8479 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_RELENT
, 0))
8483 if (SGI_COMPAT (output_bfd
))
8485 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_CONFLICTNO
, 0))
8489 if (SGI_COMPAT (output_bfd
))
8491 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LIBLISTNO
, 0))
8495 if (bfd_get_section_by_name (dynobj
, ".conflict") != NULL
)
8497 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_CONFLICT
, 0))
8500 s
= bfd_get_section_by_name (dynobj
, ".liblist");
8501 BFD_ASSERT (s
!= NULL
);
8503 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LIBLIST
, 0))
8507 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_RLD_VERSION
, 0))
8510 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_FLAGS
, 0))
8514 /* Time stamps in executable files are a bad idea. */
8515 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_TIME_STAMP
, 0))
8520 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_ICHECKSUM
, 0))
8525 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_IVERSION
, 0))
8529 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_BASE_ADDRESS
, 0))
8532 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_LOCAL_GOTNO
, 0))
8535 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_SYMTABNO
, 0))
8538 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_UNREFEXTNO
, 0))
8541 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_GOTSYM
, 0))
8544 if (IRIX_COMPAT (dynobj
) == ict_irix5
8545 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_HIPAGENO
, 0))
8548 if (IRIX_COMPAT (dynobj
) == ict_irix6
8549 && (bfd_get_section_by_name
8550 (dynobj
, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj
)))
8551 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_OPTIONS
, 0))
8554 if (bfd_get_section_by_name (dynobj
,
8555 MIPS_ELF_MSYM_SECTION_NAME (dynobj
))
8556 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info
, DT_MIPS_MSYM
, 0))
8563 /* If NAME is one of the special IRIX6 symbols defined by the linker,
8564 adjust it appropriately now. */
8567 mips_elf_irix6_finish_dynamic_symbol (abfd
, name
, sym
)
8568 bfd
*abfd ATTRIBUTE_UNUSED
;
8570 Elf_Internal_Sym
*sym
;
8572 /* The linker script takes care of providing names and values for
8573 these, but we must place them into the right sections. */
8574 static const char* const text_section_symbols
[] = {
8577 "__dso_displacement",
8579 "__program_header_table",
8583 static const char* const data_section_symbols
[] = {
8591 const char* const *p
;
8594 for (i
= 0; i
< 2; ++i
)
8595 for (p
= (i
== 0) ? text_section_symbols
: data_section_symbols
;
8598 if (strcmp (*p
, name
) == 0)
8600 /* All of these symbols are given type STT_SECTION by the
8602 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8604 /* The IRIX linker puts these symbols in special sections. */
8606 sym
->st_shndx
= SHN_MIPS_TEXT
;
8608 sym
->st_shndx
= SHN_MIPS_DATA
;
8614 /* Finish up dynamic symbol handling. We set the contents of various
8615 dynamic sections here. */
8618 _bfd_mips_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8620 struct bfd_link_info
*info
;
8621 struct elf_link_hash_entry
*h
;
8622 Elf_Internal_Sym
*sym
;
8628 struct mips_got_info
*g
;
8630 struct mips_elf_link_hash_entry
*mh
;
8632 dynobj
= elf_hash_table (info
)->dynobj
;
8633 gval
= sym
->st_value
;
8634 mh
= (struct mips_elf_link_hash_entry
*) h
;
8636 if (h
->plt
.offset
!= (bfd_vma
) -1)
8640 bfd_byte stub
[MIPS_FUNCTION_STUB_SIZE
];
8642 /* This symbol has a stub. Set it up. */
8644 BFD_ASSERT (h
->dynindx
!= -1);
8646 s
= bfd_get_section_by_name (dynobj
,
8647 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
8648 BFD_ASSERT (s
!= NULL
);
8650 /* Fill the stub. */
8652 bfd_put_32 (output_bfd
, STUB_LW (output_bfd
), p
);
8654 bfd_put_32 (output_bfd
, STUB_MOVE (output_bfd
), p
);
8657 /* FIXME: Can h->dynindex be more than 64K? */
8658 if (h
->dynindx
& 0xffff0000)
8661 bfd_put_32 (output_bfd
, STUB_JALR
, p
);
8663 bfd_put_32 (output_bfd
, STUB_LI16 (output_bfd
) + h
->dynindx
, p
);
8665 BFD_ASSERT (h
->plt
.offset
<= s
->_raw_size
);
8666 memcpy (s
->contents
+ h
->plt
.offset
, stub
, MIPS_FUNCTION_STUB_SIZE
);
8668 /* Mark the symbol as undefined. plt.offset != -1 occurs
8669 only for the referenced symbol. */
8670 sym
->st_shndx
= SHN_UNDEF
;
8672 /* The run-time linker uses the st_value field of the symbol
8673 to reset the global offset table entry for this external
8674 to its stub address when unlinking a shared object. */
8675 gval
= s
->output_section
->vma
+ s
->output_offset
+ h
->plt
.offset
;
8676 sym
->st_value
= gval
;
8679 BFD_ASSERT (h
->dynindx
!= -1
8680 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0);
8682 sgot
= mips_elf_got_section (dynobj
);
8683 BFD_ASSERT (sgot
!= NULL
);
8684 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
8685 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
8686 BFD_ASSERT (g
!= NULL
);
8688 /* Run through the global symbol table, creating GOT entries for all
8689 the symbols that need them. */
8690 if (g
->global_gotsym
!= NULL
8691 && h
->dynindx
>= g
->global_gotsym
->dynindx
)
8697 value
= sym
->st_value
;
8700 /* For an entity defined in a shared object, this will be
8701 NULL. (For functions in shared objects for
8702 which we have created stubs, ST_VALUE will be non-NULL.
8703 That's because such the functions are now no longer defined
8704 in a shared object.) */
8706 if (info
->shared
&& h
->root
.type
== bfd_link_hash_undefined
)
8709 value
= h
->root
.u
.def
.value
;
8711 offset
= mips_elf_global_got_index (dynobj
, h
);
8712 MIPS_ELF_PUT_WORD (output_bfd
, value
, sgot
->contents
+ offset
);
8715 /* Create a .msym entry, if appropriate. */
8716 smsym
= bfd_get_section_by_name (dynobj
,
8717 MIPS_ELF_MSYM_SECTION_NAME (dynobj
));
8720 Elf32_Internal_Msym msym
;
8722 msym
.ms_hash_value
= bfd_elf_hash (h
->root
.root
.string
);
8723 /* It is undocumented what the `1' indicates, but IRIX6 uses
8725 msym
.ms_info
= ELF32_MS_INFO (mh
->min_dyn_reloc_index
, 1);
8726 bfd_mips_elf_swap_msym_out
8728 ((Elf32_External_Msym
*) smsym
->contents
) + h
->dynindx
);
8731 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
8732 name
= h
->root
.root
.string
;
8733 if (strcmp (name
, "_DYNAMIC") == 0
8734 || strcmp (name
, "_GLOBAL_OFFSET_TABLE_") == 0)
8735 sym
->st_shndx
= SHN_ABS
;
8736 else if (strcmp (name
, "_DYNAMIC_LINK") == 0
8737 || strcmp (name
, "_DYNAMIC_LINKING") == 0)
8739 sym
->st_shndx
= SHN_ABS
;
8740 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8743 else if (strcmp (name
, "_gp_disp") == 0)
8745 sym
->st_shndx
= SHN_ABS
;
8746 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8747 sym
->st_value
= elf_gp (output_bfd
);
8749 else if (SGI_COMPAT (output_bfd
))
8751 if (strcmp (name
, mips_elf_dynsym_rtproc_names
[0]) == 0
8752 || strcmp (name
, mips_elf_dynsym_rtproc_names
[1]) == 0)
8754 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8755 sym
->st_other
= STO_PROTECTED
;
8757 sym
->st_shndx
= SHN_MIPS_DATA
;
8759 else if (strcmp (name
, mips_elf_dynsym_rtproc_names
[2]) == 0)
8761 sym
->st_info
= ELF_ST_INFO (STB_GLOBAL
, STT_SECTION
);
8762 sym
->st_other
= STO_PROTECTED
;
8763 sym
->st_value
= mips_elf_hash_table (info
)->procedure_count
;
8764 sym
->st_shndx
= SHN_ABS
;
8766 else if (sym
->st_shndx
!= SHN_UNDEF
&& sym
->st_shndx
!= SHN_ABS
)
8768 if (h
->type
== STT_FUNC
)
8769 sym
->st_shndx
= SHN_MIPS_TEXT
;
8770 else if (h
->type
== STT_OBJECT
)
8771 sym
->st_shndx
= SHN_MIPS_DATA
;
8775 /* Handle the IRIX6-specific symbols. */
8776 if (IRIX_COMPAT (output_bfd
) == ict_irix6
)
8777 mips_elf_irix6_finish_dynamic_symbol (output_bfd
, name
, sym
);
8781 if (! mips_elf_hash_table (info
)->use_rld_obj_head
8782 && (strcmp (name
, "__rld_map") == 0
8783 || strcmp (name
, "__RLD_MAP") == 0))
8785 asection
*s
= bfd_get_section_by_name (dynobj
, ".rld_map");
8786 BFD_ASSERT (s
!= NULL
);
8787 sym
->st_value
= s
->output_section
->vma
+ s
->output_offset
;
8788 bfd_put_32 (output_bfd
, (bfd_vma
) 0, s
->contents
);
8789 if (mips_elf_hash_table (info
)->rld_value
== 0)
8790 mips_elf_hash_table (info
)->rld_value
= sym
->st_value
;
8792 else if (mips_elf_hash_table (info
)->use_rld_obj_head
8793 && strcmp (name
, "__rld_obj_head") == 0)
8795 /* IRIX6 does not use a .rld_map section. */
8796 if (IRIX_COMPAT (output_bfd
) == ict_irix5
8797 || IRIX_COMPAT (output_bfd
) == ict_none
)
8798 BFD_ASSERT (bfd_get_section_by_name (dynobj
, ".rld_map")
8800 mips_elf_hash_table (info
)->rld_value
= sym
->st_value
;
8804 /* If this is a mips16 symbol, force the value to be even. */
8805 if (sym
->st_other
== STO_MIPS16
8806 && (sym
->st_value
& 1) != 0)
8812 /* Finish up the dynamic sections. */
8815 _bfd_mips_elf_finish_dynamic_sections (output_bfd
, info
)
8817 struct bfd_link_info
*info
;
8822 struct mips_got_info
*g
;
8824 dynobj
= elf_hash_table (info
)->dynobj
;
8826 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8828 sgot
= mips_elf_got_section (dynobj
);
8833 BFD_ASSERT (elf_section_data (sgot
) != NULL
);
8834 g
= (struct mips_got_info
*) elf_section_data (sgot
)->tdata
;
8835 BFD_ASSERT (g
!= NULL
);
8838 if (elf_hash_table (info
)->dynamic_sections_created
)
8842 BFD_ASSERT (sdyn
!= NULL
);
8843 BFD_ASSERT (g
!= NULL
);
8845 for (b
= sdyn
->contents
;
8846 b
< sdyn
->contents
+ sdyn
->_raw_size
;
8847 b
+= MIPS_ELF_DYN_SIZE (dynobj
))
8849 Elf_Internal_Dyn dyn
;
8855 /* Read in the current dynamic entry. */
8856 (*get_elf_backend_data (dynobj
)->s
->swap_dyn_in
) (dynobj
, b
, &dyn
);
8858 /* Assume that we're going to modify it and write it out. */
8864 s
= (bfd_get_section_by_name
8866 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
)));
8867 BFD_ASSERT (s
!= NULL
);
8868 dyn
.d_un
.d_val
= MIPS_ELF_REL_SIZE (dynobj
);
8872 /* Rewrite DT_STRSZ. */
8874 _bfd_stringtab_size (elf_hash_table (info
)->dynstr
);
8880 case DT_MIPS_CONFLICT
:
8883 case DT_MIPS_LIBLIST
:
8886 s
= bfd_get_section_by_name (output_bfd
, name
);
8887 BFD_ASSERT (s
!= NULL
);
8888 dyn
.d_un
.d_ptr
= s
->vma
;
8891 case DT_MIPS_RLD_VERSION
:
8892 dyn
.d_un
.d_val
= 1; /* XXX */
8896 dyn
.d_un
.d_val
= RHF_NOTPOT
; /* XXX */
8899 case DT_MIPS_CONFLICTNO
:
8901 elemsize
= sizeof (Elf32_Conflict
);
8904 case DT_MIPS_LIBLISTNO
:
8906 elemsize
= sizeof (Elf32_Lib
);
8908 s
= bfd_get_section_by_name (output_bfd
, name
);
8911 if (s
->_cooked_size
!= 0)
8912 dyn
.d_un
.d_val
= s
->_cooked_size
/ elemsize
;
8914 dyn
.d_un
.d_val
= s
->_raw_size
/ elemsize
;
8920 case DT_MIPS_TIME_STAMP
:
8921 time ((time_t *) &dyn
.d_un
.d_val
);
8924 case DT_MIPS_ICHECKSUM
:
8929 case DT_MIPS_IVERSION
:
8934 case DT_MIPS_BASE_ADDRESS
:
8935 s
= output_bfd
->sections
;
8936 BFD_ASSERT (s
!= NULL
);
8937 dyn
.d_un
.d_ptr
= s
->vma
& ~(0xffff);
8940 case DT_MIPS_LOCAL_GOTNO
:
8941 dyn
.d_un
.d_val
= g
->local_gotno
;
8944 case DT_MIPS_UNREFEXTNO
:
8945 /* The index into the dynamic symbol table which is the
8946 entry of the first external symbol that is not
8947 referenced within the same object. */
8948 dyn
.d_un
.d_val
= bfd_count_sections (output_bfd
) + 1;
8951 case DT_MIPS_GOTSYM
:
8952 if (g
->global_gotsym
)
8954 dyn
.d_un
.d_val
= g
->global_gotsym
->dynindx
;
8957 /* In case if we don't have global got symbols we default
8958 to setting DT_MIPS_GOTSYM to the same value as
8959 DT_MIPS_SYMTABNO, so we just fall through. */
8961 case DT_MIPS_SYMTABNO
:
8963 elemsize
= MIPS_ELF_SYM_SIZE (output_bfd
);
8964 s
= bfd_get_section_by_name (output_bfd
, name
);
8965 BFD_ASSERT (s
!= NULL
);
8967 if (s
->_cooked_size
!= 0)
8968 dyn
.d_un
.d_val
= s
->_cooked_size
/ elemsize
;
8970 dyn
.d_un
.d_val
= s
->_raw_size
/ elemsize
;
8973 case DT_MIPS_HIPAGENO
:
8974 dyn
.d_un
.d_val
= g
->local_gotno
- MIPS_RESERVED_GOTNO
;
8977 case DT_MIPS_RLD_MAP
:
8978 dyn
.d_un
.d_ptr
= mips_elf_hash_table (info
)->rld_value
;
8981 case DT_MIPS_OPTIONS
:
8982 s
= (bfd_get_section_by_name
8983 (output_bfd
, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd
)));
8984 dyn
.d_un
.d_ptr
= s
->vma
;
8988 s
= (bfd_get_section_by_name
8989 (output_bfd
, MIPS_ELF_MSYM_SECTION_NAME (output_bfd
)));
8990 dyn
.d_un
.d_ptr
= s
->vma
;
8999 (*get_elf_backend_data (dynobj
)->s
->swap_dyn_out
)
9004 /* The first entry of the global offset table will be filled at
9005 runtime. The second entry will be used by some runtime loaders.
9006 This isn't the case of Irix rld. */
9007 if (sgot
!= NULL
&& sgot
->_raw_size
> 0)
9009 MIPS_ELF_PUT_WORD (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
9010 MIPS_ELF_PUT_WORD (output_bfd
, (bfd_vma
) 0x80000000,
9011 sgot
->contents
+ MIPS_ELF_GOT_SIZE (output_bfd
));
9015 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
9016 = MIPS_ELF_GOT_SIZE (output_bfd
);
9021 Elf32_compact_rel cpt
;
9023 /* ??? The section symbols for the output sections were set up in
9024 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9025 symbols. Should we do so? */
9027 smsym
= bfd_get_section_by_name (dynobj
,
9028 MIPS_ELF_MSYM_SECTION_NAME (dynobj
));
9031 Elf32_Internal_Msym msym
;
9033 msym
.ms_hash_value
= 0;
9034 msym
.ms_info
= ELF32_MS_INFO (0, 1);
9036 for (s
= output_bfd
->sections
; s
!= NULL
; s
= s
->next
)
9038 long dynindx
= elf_section_data (s
)->dynindx
;
9040 bfd_mips_elf_swap_msym_out
9042 (((Elf32_External_Msym
*) smsym
->contents
)
9047 if (SGI_COMPAT (output_bfd
))
9049 /* Write .compact_rel section out. */
9050 s
= bfd_get_section_by_name (dynobj
, ".compact_rel");
9054 cpt
.num
= s
->reloc_count
;
9056 cpt
.offset
= (s
->output_section
->filepos
9057 + sizeof (Elf32_External_compact_rel
));
9060 bfd_elf32_swap_compact_rel_out (output_bfd
, &cpt
,
9061 ((Elf32_External_compact_rel
*)
9064 /* Clean up a dummy stub function entry in .text. */
9065 s
= bfd_get_section_by_name (dynobj
,
9066 MIPS_ELF_STUB_SECTION_NAME (dynobj
));
9069 file_ptr dummy_offset
;
9071 BFD_ASSERT (s
->_raw_size
>= MIPS_FUNCTION_STUB_SIZE
);
9072 dummy_offset
= s
->_raw_size
- MIPS_FUNCTION_STUB_SIZE
;
9073 memset (s
->contents
+ dummy_offset
, 0,
9074 MIPS_FUNCTION_STUB_SIZE
);
9079 /* We need to sort the entries of the dynamic relocation section. */
9081 if (!ABI_64_P (output_bfd
))
9085 reldyn
= bfd_get_section_by_name (dynobj
,
9086 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
));
9087 if (reldyn
!= NULL
&& reldyn
->reloc_count
> 2)
9089 reldyn_sorting_bfd
= output_bfd
;
9090 qsort ((Elf32_External_Rel
*) reldyn
->contents
+ 1,
9091 (size_t) reldyn
->reloc_count
- 1,
9092 sizeof (Elf32_External_Rel
), sort_dynamic_relocs
);
9096 /* Clean up a first relocation in .rel.dyn. */
9097 s
= bfd_get_section_by_name (dynobj
,
9098 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj
));
9099 if (s
!= NULL
&& s
->_raw_size
> 0)
9100 memset (s
->contents
, 0, MIPS_ELF_REL_SIZE (dynobj
));
9106 /* This is almost identical to bfd_generic_get_... except that some
9107 MIPS relocations need to be handled specially. Sigh. */
9110 elf32_mips_get_relocated_section_contents (abfd
, link_info
, link_order
, data
,
9111 relocateable
, symbols
)
9113 struct bfd_link_info
*link_info
;
9114 struct bfd_link_order
*link_order
;
9116 boolean relocateable
;
9119 /* Get enough memory to hold the stuff */
9120 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
9121 asection
*input_section
= link_order
->u
.indirect
.section
;
9123 long reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
9124 arelent
**reloc_vector
= NULL
;
9130 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
9131 if (reloc_vector
== NULL
&& reloc_size
!= 0)
9134 /* read in the section */
9135 if (!bfd_get_section_contents (input_bfd
,
9139 input_section
->_raw_size
))
9142 /* We're not relaxing the section, so just copy the size info */
9143 input_section
->_cooked_size
= input_section
->_raw_size
;
9144 input_section
->reloc_done
= true;
9146 reloc_count
= bfd_canonicalize_reloc (input_bfd
,
9150 if (reloc_count
< 0)
9153 if (reloc_count
> 0)
9158 bfd_vma gp
= 0x12345678; /* initialize just to shut gcc up */
9161 struct bfd_hash_entry
*h
;
9162 struct bfd_link_hash_entry
*lh
;
9163 /* Skip all this stuff if we aren't mixing formats. */
9164 if (abfd
&& input_bfd
9165 && abfd
->xvec
== input_bfd
->xvec
)
9169 h
= bfd_hash_lookup (&link_info
->hash
->table
, "_gp", false, false);
9170 lh
= (struct bfd_link_hash_entry
*) h
;
9177 case bfd_link_hash_undefined
:
9178 case bfd_link_hash_undefweak
:
9179 case bfd_link_hash_common
:
9182 case bfd_link_hash_defined
:
9183 case bfd_link_hash_defweak
:
9185 gp
= lh
->u
.def
.value
;
9187 case bfd_link_hash_indirect
:
9188 case bfd_link_hash_warning
:
9190 /* @@FIXME ignoring warning for now */
9192 case bfd_link_hash_new
:
9201 for (parent
= reloc_vector
; *parent
!= (arelent
*) NULL
;
9204 char *error_message
= (char *) NULL
;
9205 bfd_reloc_status_type r
;
9207 /* Specific to MIPS: Deal with relocation types that require
9208 knowing the gp of the output bfd. */
9209 asymbol
*sym
= *(*parent
)->sym_ptr_ptr
;
9210 if (bfd_is_abs_section (sym
->section
) && abfd
)
9212 /* The special_function wouldn't get called anyways. */
9216 /* The gp isn't there; let the special function code
9217 fall over on its own. */
9219 else if ((*parent
)->howto
->special_function
9220 == _bfd_mips_elf_gprel16_reloc
)
9222 /* bypass special_function call */
9223 r
= gprel16_with_gp (input_bfd
, sym
, *parent
, input_section
,
9224 relocateable
, (PTR
) data
, gp
);
9225 goto skip_bfd_perform_relocation
;
9227 /* end mips specific stuff */
9229 r
= bfd_perform_relocation (input_bfd
,
9233 relocateable
? abfd
: (bfd
*) NULL
,
9235 skip_bfd_perform_relocation
:
9239 asection
*os
= input_section
->output_section
;
9241 /* A partial link, so keep the relocs */
9242 os
->orelocation
[os
->reloc_count
] = *parent
;
9246 if (r
!= bfd_reloc_ok
)
9250 case bfd_reloc_undefined
:
9251 if (!((*link_info
->callbacks
->undefined_symbol
)
9252 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
9253 input_bfd
, input_section
, (*parent
)->address
,
9257 case bfd_reloc_dangerous
:
9258 BFD_ASSERT (error_message
!= (char *) NULL
);
9259 if (!((*link_info
->callbacks
->reloc_dangerous
)
9260 (link_info
, error_message
, input_bfd
, input_section
,
9261 (*parent
)->address
)))
9264 case bfd_reloc_overflow
:
9265 if (!((*link_info
->callbacks
->reloc_overflow
)
9266 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
9267 (*parent
)->howto
->name
, (*parent
)->addend
,
9268 input_bfd
, input_section
, (*parent
)->address
)))
9271 case bfd_reloc_outofrange
:
9280 if (reloc_vector
!= NULL
)
9281 free (reloc_vector
);
9285 if (reloc_vector
!= NULL
)
9286 free (reloc_vector
);
9290 #define bfd_elf32_bfd_get_relocated_section_contents \
9291 elf32_mips_get_relocated_section_contents
9293 /* ECOFF swapping routines. These are used when dealing with the
9294 .mdebug section, which is in the ECOFF debugging format. */
9295 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap
= {
9296 /* Symbol table magic number. */
9298 /* Alignment of debugging information. E.g., 4. */
9300 /* Sizes of external symbolic information. */
9301 sizeof (struct hdr_ext
),
9302 sizeof (struct dnr_ext
),
9303 sizeof (struct pdr_ext
),
9304 sizeof (struct sym_ext
),
9305 sizeof (struct opt_ext
),
9306 sizeof (struct fdr_ext
),
9307 sizeof (struct rfd_ext
),
9308 sizeof (struct ext_ext
),
9309 /* Functions to swap in external symbolic data. */
9318 _bfd_ecoff_swap_tir_in
,
9319 _bfd_ecoff_swap_rndx_in
,
9320 /* Functions to swap out external symbolic data. */
9329 _bfd_ecoff_swap_tir_out
,
9330 _bfd_ecoff_swap_rndx_out
,
9331 /* Function to read in symbolic data. */
9332 _bfd_mips_elf_read_ecoff_info
9335 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
9336 #define TARGET_LITTLE_NAME "elf32-littlemips"
9337 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
9338 #define TARGET_BIG_NAME "elf32-bigmips"
9339 #define ELF_ARCH bfd_arch_mips
9340 #define ELF_MACHINE_CODE EM_MIPS
9342 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
9343 a value of 0x1000, and we are compatible. */
9344 #define ELF_MAXPAGESIZE 0x1000
9346 #define elf_backend_collect true
9347 #define elf_backend_type_change_ok true
9348 #define elf_backend_can_gc_sections true
9349 #define elf_backend_sign_extend_vma true
9350 #define elf_info_to_howto mips_info_to_howto_rela
9351 #define elf_info_to_howto_rel mips_info_to_howto_rel
9352 #define elf_backend_sym_is_global mips_elf_sym_is_global
9353 #define elf_backend_object_p _bfd_mips_elf_object_p
9354 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
9355 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
9356 #define elf_backend_section_from_bfd_section \
9357 _bfd_mips_elf_section_from_bfd_section
9358 #define elf_backend_section_processing _bfd_mips_elf_section_processing
9359 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
9360 #define elf_backend_additional_program_headers \
9361 _bfd_mips_elf_additional_program_headers
9362 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
9363 #define elf_backend_final_write_processing \
9364 _bfd_mips_elf_final_write_processing
9365 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
9366 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
9367 #define elf_backend_create_dynamic_sections \
9368 _bfd_mips_elf_create_dynamic_sections
9369 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
9370 #define elf_backend_adjust_dynamic_symbol \
9371 _bfd_mips_elf_adjust_dynamic_symbol
9372 #define elf_backend_always_size_sections \
9373 _bfd_mips_elf_always_size_sections
9374 #define elf_backend_size_dynamic_sections \
9375 _bfd_mips_elf_size_dynamic_sections
9376 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
9377 #define elf_backend_link_output_symbol_hook \
9378 _bfd_mips_elf_link_output_symbol_hook
9379 #define elf_backend_finish_dynamic_symbol \
9380 _bfd_mips_elf_finish_dynamic_symbol
9381 #define elf_backend_finish_dynamic_sections \
9382 _bfd_mips_elf_finish_dynamic_sections
9383 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
9384 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
9386 #define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO)
9387 #define elf_backend_plt_header_size 0
9389 #define elf_backend_copy_indirect_symbol \
9390 _bfd_mips_elf_copy_indirect_symbol
9392 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
9394 #define bfd_elf32_bfd_is_local_label_name \
9395 mips_elf_is_local_label_name
9396 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
9397 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
9398 #define bfd_elf32_bfd_link_hash_table_create \
9399 _bfd_mips_elf_link_hash_table_create
9400 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
9401 #define bfd_elf32_bfd_copy_private_bfd_data \
9402 _bfd_mips_elf_copy_private_bfd_data
9403 #define bfd_elf32_bfd_merge_private_bfd_data \
9404 _bfd_mips_elf_merge_private_bfd_data
9405 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
9406 #define bfd_elf32_bfd_print_private_bfd_data \
9407 _bfd_mips_elf_print_private_bfd_data
9408 #include "elf32-target.h"
9410 /* Support for traditional mips targets */
9412 #define INCLUDED_TARGET_FILE /* More a type of flag */
9414 #undef TARGET_LITTLE_SYM
9415 #undef TARGET_LITTLE_NAME
9416 #undef TARGET_BIG_SYM
9417 #undef TARGET_BIG_NAME
9419 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
9420 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
9421 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
9422 #define TARGET_BIG_NAME "elf32-tradbigmips"
9424 /* Include the target file again for this target */
9425 #include "elf32-target.h"