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 jump 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 addresses are 64 bits. The upper 32 bits are a simple
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 case bfd_mach_mips10000:
2394 case bfd_mach_mips12000:
2395 val = E_MIPS_ARCH_4;
2398 case bfd_mach_mips32:
2399 val = E_MIPS_ARCH_32;
2402 case bfd_mach_mips32_4k:
2403 val = E_MIPS_ARCH_32 | E_MIPS_MACH_MIPS32_4K;
2406 case bfd_mach_mips5:
2407 val = E_MIPS_ARCH_5;
2410 case bfd_mach_mips64:
2411 val = E_MIPS_ARCH_64;
2414 case bfd_mach_mips_sb1:
2415 val = E_MIPS_ARCH_64 | E_MIPS_MACH_SB1;
2419 elf_elfheader (abfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
2420 elf_elfheader (abfd)->e_flags |= val;
2422 /* Set the sh_info field for .gptab sections and other appropriate
2423 info for each special section. */
2424 for (i = 1, hdrpp = elf_elfsections (abfd) + 1;
2425 i < elf_elfheader (abfd)->e_shnum;
2428 switch ((*hdrpp)->sh_type)
2431 case SHT_MIPS_LIBLIST:
2432 sec = bfd_get_section_by_name (abfd, ".dynstr");
2434 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2437 case SHT_MIPS_GPTAB:
2438 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2439 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2440 BFD_ASSERT (name != NULL
2441 && strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0);
2442 sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1);
2443 BFD_ASSERT (sec != NULL);
2444 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
2447 case SHT_MIPS_CONTENT:
2448 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2449 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2450 BFD_ASSERT (name != NULL
2451 && strncmp (name, ".MIPS.content",
2452 sizeof ".MIPS.content" - 1) == 0);
2453 sec = bfd_get_section_by_name (abfd,
2454 name + sizeof ".MIPS.content" - 1);
2455 BFD_ASSERT (sec != NULL);
2456 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2459 case SHT_MIPS_SYMBOL_LIB:
2460 sec = bfd_get_section_by_name (abfd, ".dynsym");
2462 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2463 sec = bfd_get_section_by_name (abfd, ".liblist");
2465 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
2468 case SHT_MIPS_EVENTS:
2469 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2470 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2471 BFD_ASSERT (name != NULL);
2472 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0)
2473 sec = bfd_get_section_by_name (abfd,
2474 name + sizeof ".MIPS.events" - 1);
2477 BFD_ASSERT (strncmp (name, ".MIPS.post_rel",
2478 sizeof ".MIPS.post_rel" - 1) == 0);
2479 sec = bfd_get_section_by_name (abfd,
2481 + sizeof ".MIPS.post_rel" - 1));
2483 BFD_ASSERT (sec != NULL);
2484 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2491 /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */
2494 _bfd_mips_elf_set_private_flags (abfd, flags)
2498 BFD_ASSERT (!elf_flags_init (abfd)
2499 || elf_elfheader (abfd)->e_flags == flags);
2501 elf_elfheader (abfd)->e_flags = flags;
2502 elf_flags_init (abfd) = true;
2506 /* Copy backend specific data from one object module to another */
2509 _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd)
2513 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2514 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2517 BFD_ASSERT (!elf_flags_init (obfd)
2518 || (elf_elfheader (obfd)->e_flags
2519 == elf_elfheader (ibfd)->e_flags));
2521 elf_gp (obfd) = elf_gp (ibfd);
2522 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
2523 elf_flags_init (obfd) = true;
2527 /* Merge backend specific data from an object file to the output
2528 object file when linking. */
2531 _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
2538 boolean null_input_bfd = true;
2541 /* Check if we have the same endianess */
2542 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
2545 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2546 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2549 new_flags = elf_elfheader (ibfd)->e_flags;
2550 elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
2551 old_flags = elf_elfheader (obfd)->e_flags;
2553 if (! elf_flags_init (obfd))
2555 elf_flags_init (obfd) = true;
2556 elf_elfheader (obfd)->e_flags = new_flags;
2557 elf_elfheader (obfd)->e_ident[EI_CLASS]
2558 = elf_elfheader (ibfd)->e_ident[EI_CLASS];
2560 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2561 && bfd_get_arch_info (obfd)->the_default)
2563 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
2564 bfd_get_mach (ibfd)))
2571 /* Check flag compatibility. */
2573 new_flags &= ~EF_MIPS_NOREORDER;
2574 old_flags &= ~EF_MIPS_NOREORDER;
2576 if (new_flags == old_flags)
2579 /* Check to see if the input BFD actually contains any sections.
2580 If not, its flags may not have been initialised either, but it cannot
2581 actually cause any incompatibility. */
2582 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2584 /* Ignore synthetic sections and empty .text, .data and .bss sections
2585 which are automatically generated by gas. */
2586 if (strcmp (sec->name, ".reginfo")
2587 && strcmp (sec->name, ".mdebug")
2588 && ((!strcmp (sec->name, ".text")
2589 || !strcmp (sec->name, ".data")
2590 || !strcmp (sec->name, ".bss"))
2591 && sec->_raw_size != 0))
2593 null_input_bfd = false;
2602 if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC))
2604 new_flags &= ~EF_MIPS_PIC;
2605 old_flags &= ~EF_MIPS_PIC;
2606 (*_bfd_error_handler)
2607 (_("%s: linking PIC files with non-PIC files"),
2608 bfd_get_filename (ibfd));
2612 if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC))
2614 new_flags &= ~EF_MIPS_CPIC;
2615 old_flags &= ~EF_MIPS_CPIC;
2616 (*_bfd_error_handler)
2617 (_("%s: linking abicalls files with non-abicalls files"),
2618 bfd_get_filename (ibfd));
2622 /* Compare the ISA's. */
2623 if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))
2624 != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)))
2626 int new_mach = new_flags & EF_MIPS_MACH;
2627 int old_mach = old_flags & EF_MIPS_MACH;
2628 int new_isa = elf_mips_isa (new_flags);
2629 int old_isa = elf_mips_isa (old_flags);
2631 /* If either has no machine specified, just compare the general isa's.
2632 Some combinations of machines are ok, if the isa's match. */
2635 || new_mach == old_mach
2638 /* Don't warn about mixing code using 32-bit ISAs, or mixing code
2639 using 64-bit ISAs. They will normally use the same data sizes
2640 and calling conventions. */
2642 if (( (new_isa == 1 || new_isa == 2 || new_isa == 32)
2643 ^ (old_isa == 1 || old_isa == 2 || old_isa == 32)) != 0)
2645 (*_bfd_error_handler)
2646 (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"),
2647 bfd_get_filename (ibfd), new_isa, old_isa);
2654 (*_bfd_error_handler)
2655 (_("%s: ISA mismatch (%d) with previous modules (%d)"),
2656 bfd_get_filename (ibfd),
2657 elf_mips_mach (new_flags),
2658 elf_mips_mach (old_flags));
2662 new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
2663 old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
2666 /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it
2667 does set EI_CLASS differently from any 32-bit ABI. */
2668 if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI)
2669 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
2670 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
2672 /* Only error if both are set (to different values). */
2673 if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI))
2674 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
2675 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
2677 (*_bfd_error_handler)
2678 (_("%s: ABI mismatch: linking %s module with previous %s modules"),
2679 bfd_get_filename (ibfd),
2680 elf_mips_abi_name (ibfd),
2681 elf_mips_abi_name (obfd));
2684 new_flags &= ~EF_MIPS_ABI;
2685 old_flags &= ~EF_MIPS_ABI;
2688 /* Warn about any other mismatches */
2689 if (new_flags != old_flags)
2691 (*_bfd_error_handler)
2692 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
2693 bfd_get_filename (ibfd), (unsigned long) new_flags,
2694 (unsigned long) old_flags);
2700 bfd_set_error (bfd_error_bad_value);
2708 _bfd_mips_elf_print_private_bfd_data (abfd, ptr)
2712 FILE *file = (FILE *) ptr;
2714 BFD_ASSERT (abfd != NULL && ptr != NULL);
2716 /* Print normal ELF private data. */
2717 _bfd_elf_print_private_bfd_data (abfd, ptr);
2719 /* xgettext:c-format */
2720 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
2722 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32)
2723 fprintf (file, _(" [abi=O32]"));
2724 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O64)
2725 fprintf (file, _(" [abi=O64]"));
2726 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32)
2727 fprintf (file, _(" [abi=EABI32]"));
2728 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI64)
2729 fprintf (file, _(" [abi=EABI64]"));
2730 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI))
2731 fprintf (file, _(" [abi unknown]"));
2732 else if (ABI_N32_P (abfd))
2733 fprintf (file, _(" [abi=N32]"));
2734 else if (ABI_64_P (abfd))
2735 fprintf (file, _(" [abi=64]"));
2737 fprintf (file, _(" [no abi set]"));
2739 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1)
2740 fprintf (file, _(" [mips1]"));
2741 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2)
2742 fprintf (file, _(" [mips2]"));
2743 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3)
2744 fprintf (file, _(" [mips3]"));
2745 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4)
2746 fprintf (file, _(" [mips4]"));
2747 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_5)
2748 fprintf (file, _ (" [mips5]"));
2749 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32)
2750 fprintf (file, _ (" [mips32]"));
2751 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64)
2752 fprintf (file, _ (" [mips64]"));
2754 fprintf (file, _(" [unknown ISA]"));
2756 if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE)
2757 fprintf (file, _(" [32bitmode]"));
2759 fprintf (file, _(" [not 32bitmode]"));
2766 /* Handle a MIPS specific section when reading an object file. This
2767 is called when elfcode.h finds a section with an unknown type.
2768 This routine supports both the 32-bit and 64-bit ELF ABI.
2770 FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
2774 _bfd_mips_elf_section_from_shdr (abfd, hdr, name)
2776 Elf_Internal_Shdr *hdr;
2781 /* There ought to be a place to keep ELF backend specific flags, but
2782 at the moment there isn't one. We just keep track of the
2783 sections by their name, instead. Fortunately, the ABI gives
2784 suggested names for all the MIPS specific sections, so we will
2785 probably get away with this. */
2786 switch (hdr->sh_type)
2788 case SHT_MIPS_LIBLIST:
2789 if (strcmp (name, ".liblist") != 0)
2793 if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0)
2796 case SHT_MIPS_CONFLICT:
2797 if (strcmp (name, ".conflict") != 0)
2800 case SHT_MIPS_GPTAB:
2801 if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0)
2804 case SHT_MIPS_UCODE:
2805 if (strcmp (name, ".ucode") != 0)
2808 case SHT_MIPS_DEBUG:
2809 if (strcmp (name, ".mdebug") != 0)
2811 flags = SEC_DEBUGGING;
2813 case SHT_MIPS_REGINFO:
2814 if (strcmp (name, ".reginfo") != 0
2815 || hdr->sh_size != sizeof (Elf32_External_RegInfo))
2817 flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE);
2819 case SHT_MIPS_IFACE:
2820 if (strcmp (name, ".MIPS.interfaces") != 0)
2823 case SHT_MIPS_CONTENT:
2824 if (strncmp (name, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0)
2827 case SHT_MIPS_OPTIONS:
2828 if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) != 0)
2831 case SHT_MIPS_DWARF:
2832 if (strncmp (name, ".debug_", sizeof ".debug_" - 1) != 0)
2835 case SHT_MIPS_SYMBOL_LIB:
2836 if (strcmp (name, ".MIPS.symlib") != 0)
2839 case SHT_MIPS_EVENTS:
2840 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0
2841 && strncmp (name, ".MIPS.post_rel",
2842 sizeof ".MIPS.post_rel" - 1) != 0)
2849 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
2854 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
2855 (bfd_get_section_flags (abfd,
2861 /* FIXME: We should record sh_info for a .gptab section. */
2863 /* For a .reginfo section, set the gp value in the tdata information
2864 from the contents of this section. We need the gp value while
2865 processing relocs, so we just get it now. The .reginfo section
2866 is not used in the 64-bit MIPS ELF ABI. */
2867 if (hdr->sh_type == SHT_MIPS_REGINFO)
2869 Elf32_External_RegInfo ext;
2872 if (! bfd_get_section_contents (abfd, hdr->bfd_section, (PTR) &ext,
2873 (file_ptr) 0, sizeof ext))
2875 bfd_mips_elf32_swap_reginfo_in (abfd, &ext, &s);
2876 elf_gp (abfd) = s.ri_gp_value;
2879 /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
2880 set the gp value based on what we find. We may see both
2881 SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
2882 they should agree. */
2883 if (hdr->sh_type == SHT_MIPS_OPTIONS)
2885 bfd_byte *contents, *l, *lend;
2887 contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
2888 if (contents == NULL)
2890 if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents,
2891 (file_ptr) 0, hdr->sh_size))
2897 lend = contents + hdr->sh_size;
2898 while (l + sizeof (Elf_External_Options) <= lend)
2900 Elf_Internal_Options intopt;
2902 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
2904 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
2906 Elf64_Internal_RegInfo intreg;
2908 bfd_mips_elf64_swap_reginfo_in
2910 ((Elf64_External_RegInfo *)
2911 (l + sizeof (Elf_External_Options))),
2913 elf_gp (abfd) = intreg.ri_gp_value;
2915 else if (intopt.kind == ODK_REGINFO)
2917 Elf32_RegInfo intreg;
2919 bfd_mips_elf32_swap_reginfo_in
2921 ((Elf32_External_RegInfo *)
2922 (l + sizeof (Elf_External_Options))),
2924 elf_gp (abfd) = intreg.ri_gp_value;
2934 /* Set the correct type for a MIPS ELF section. We do this by the
2935 section name, which is a hack, but ought to work. This routine is
2936 used by both the 32-bit and the 64-bit ABI. */
2939 _bfd_mips_elf_fake_sections (abfd, hdr, sec)
2941 Elf32_Internal_Shdr *hdr;
2944 register const char *name;
2946 name = bfd_get_section_name (abfd, sec);
2948 if (strcmp (name, ".liblist") == 0)
2950 hdr->sh_type = SHT_MIPS_LIBLIST;
2951 hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib);
2952 /* The sh_link field is set in final_write_processing. */
2954 else if (strcmp (name, ".conflict") == 0)
2955 hdr->sh_type = SHT_MIPS_CONFLICT;
2956 else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0)
2958 hdr->sh_type = SHT_MIPS_GPTAB;
2959 hdr->sh_entsize = sizeof (Elf32_External_gptab);
2960 /* The sh_info field is set in final_write_processing. */
2962 else if (strcmp (name, ".ucode") == 0)
2963 hdr->sh_type = SHT_MIPS_UCODE;
2964 else if (strcmp (name, ".mdebug") == 0)
2966 hdr->sh_type = SHT_MIPS_DEBUG;
2967 /* In a shared object on Irix 5.3, the .mdebug section has an
2968 entsize of 0. FIXME: Does this matter? */
2969 if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0)
2970 hdr->sh_entsize = 0;
2972 hdr->sh_entsize = 1;
2974 else if (strcmp (name, ".reginfo") == 0)
2976 hdr->sh_type = SHT_MIPS_REGINFO;
2977 /* In a shared object on Irix 5.3, the .reginfo section has an
2978 entsize of 0x18. FIXME: Does this matter? */
2979 if (SGI_COMPAT (abfd))
2981 if ((abfd->flags & DYNAMIC) != 0)
2982 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
2984 hdr->sh_entsize = 1;
2987 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
2989 else if (SGI_COMPAT (abfd)
2990 && (strcmp (name, ".hash") == 0
2991 || strcmp (name, ".dynamic") == 0
2992 || strcmp (name, ".dynstr") == 0))
2994 if (SGI_COMPAT (abfd))
2995 hdr->sh_entsize = 0;
2997 /* This isn't how the Irix 6 linker behaves. */
2998 hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES;
3001 else if (strcmp (name, ".got") == 0
3002 || strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0
3003 || strcmp (name, ".sdata") == 0
3004 || strcmp (name, ".sbss") == 0
3005 || strcmp (name, ".lit4") == 0
3006 || strcmp (name, ".lit8") == 0)
3007 hdr->sh_flags |= SHF_MIPS_GPREL;
3008 else if (strcmp (name, ".MIPS.interfaces") == 0)
3010 hdr->sh_type = SHT_MIPS_IFACE;
3011 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3013 else if (strncmp (name, ".MIPS.content", strlen (".MIPS.content")) == 0)
3015 hdr->sh_type = SHT_MIPS_CONTENT;
3016 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3017 /* The sh_info field is set in final_write_processing. */
3019 else if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
3021 hdr->sh_type = SHT_MIPS_OPTIONS;
3022 hdr->sh_entsize = 1;
3023 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3025 else if (strncmp (name, ".debug_", sizeof ".debug_" - 1) == 0)
3026 hdr->sh_type = SHT_MIPS_DWARF;
3027 else if (strcmp (name, ".MIPS.symlib") == 0)
3029 hdr->sh_type = SHT_MIPS_SYMBOL_LIB;
3030 /* The sh_link and sh_info fields are set in
3031 final_write_processing. */
3033 else if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0
3034 || strncmp (name, ".MIPS.post_rel",
3035 sizeof ".MIPS.post_rel" - 1) == 0)
3037 hdr->sh_type = SHT_MIPS_EVENTS;
3038 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3039 /* The sh_link field is set in final_write_processing. */
3041 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) == 0)
3043 hdr->sh_type = SHT_MIPS_MSYM;
3044 hdr->sh_flags |= SHF_ALLOC;
3045 hdr->sh_entsize = 8;
3048 /* The generic elf_fake_sections will set up REL_HDR using the
3049 default kind of relocations. But, we may actually need both
3050 kinds of relocations, so we set up the second header here. */
3051 if ((sec->flags & SEC_RELOC) != 0)
3053 struct bfd_elf_section_data *esd;
3055 esd = elf_section_data (sec);
3056 BFD_ASSERT (esd->rel_hdr2 == NULL);
3058 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, sizeof (Elf_Internal_Shdr));
3061 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
3062 !elf_section_data (sec)->use_rela_p);
3068 /* Given a BFD section, try to locate the corresponding ELF section
3069 index. This is used by both the 32-bit and the 64-bit ABI.
3070 Actually, it's not clear to me that the 64-bit ABI supports these,
3071 but for non-PIC objects we will certainly want support for at least
3072 the .scommon section. */
3075 _bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
3076 bfd *abfd ATTRIBUTE_UNUSED;
3077 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED;
3081 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3083 *retval = SHN_MIPS_SCOMMON;
3086 if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0)
3088 *retval = SHN_MIPS_ACOMMON;
3094 /* When are writing out the .options or .MIPS.options section,
3095 remember the bytes we are writing out, so that we can install the
3096 GP value in the section_processing routine. */
3099 _bfd_mips_elf_set_section_contents (abfd, section, location, offset, count)
3104 bfd_size_type count;
3106 if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
3110 if (elf_section_data (section) == NULL)
3112 section->used_by_bfd =
3113 (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data));
3114 if (elf_section_data (section) == NULL)
3117 c = (bfd_byte *) elf_section_data (section)->tdata;
3122 if (section->_cooked_size != 0)
3123 size = section->_cooked_size;
3125 size = section->_raw_size;
3126 c = (bfd_byte *) bfd_zalloc (abfd, size);
3129 elf_section_data (section)->tdata = (PTR) c;
3132 memcpy (c + offset, location, count);
3135 return _bfd_elf_set_section_contents (abfd, section, location, offset,
3139 /* Work over a section just before writing it out. This routine is
3140 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3141 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3145 _bfd_mips_elf_section_processing (abfd, hdr)
3147 Elf_Internal_Shdr *hdr;
3149 if (hdr->sh_type == SHT_MIPS_REGINFO
3150 && hdr->sh_size > 0)
3154 BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
3155 BFD_ASSERT (hdr->contents == NULL);
3158 hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
3161 bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf);
3162 if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4)
3166 if (hdr->sh_type == SHT_MIPS_OPTIONS
3167 && hdr->bfd_section != NULL
3168 && elf_section_data (hdr->bfd_section) != NULL
3169 && elf_section_data (hdr->bfd_section)->tdata != NULL)
3171 bfd_byte *contents, *l, *lend;
3173 /* We stored the section contents in the elf_section_data tdata
3174 field in the set_section_contents routine. We save the
3175 section contents so that we don't have to read them again.
3176 At this point we know that elf_gp is set, so we can look
3177 through the section contents to see if there is an
3178 ODK_REGINFO structure. */
3180 contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata;
3182 lend = contents + hdr->sh_size;
3183 while (l + sizeof (Elf_External_Options) <= lend)
3185 Elf_Internal_Options intopt;
3187 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3189 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3196 + sizeof (Elf_External_Options)
3197 + (sizeof (Elf64_External_RegInfo) - 8)),
3200 bfd_h_put_64 (abfd, elf_gp (abfd), buf);
3201 if (bfd_write (buf, 1, 8, abfd) != 8)
3204 else if (intopt.kind == ODK_REGINFO)
3211 + sizeof (Elf_External_Options)
3212 + (sizeof (Elf32_External_RegInfo) - 4)),
3215 bfd_h_put_32 (abfd, elf_gp (abfd), buf);
3216 if (bfd_write (buf, 1, 4, abfd) != 4)
3223 if (hdr->bfd_section != NULL)
3225 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3227 if (strcmp (name, ".sdata") == 0
3228 || strcmp (name, ".lit8") == 0
3229 || strcmp (name, ".lit4") == 0)
3231 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3232 hdr->sh_type = SHT_PROGBITS;
3234 else if (strcmp (name, ".sbss") == 0)
3236 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3237 hdr->sh_type = SHT_NOBITS;
3239 else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0)
3241 hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
3242 hdr->sh_type = SHT_PROGBITS;
3244 else if (strcmp (name, ".compact_rel") == 0)
3247 hdr->sh_type = SHT_PROGBITS;
3249 else if (strcmp (name, ".rtproc") == 0)
3251 if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
3253 unsigned int adjust;
3255 adjust = hdr->sh_size % hdr->sh_addralign;
3257 hdr->sh_size += hdr->sh_addralign - adjust;
3265 /* MIPS ELF uses two common sections. One is the usual one, and the
3266 other is for small objects. All the small objects are kept
3267 together, and then referenced via the gp pointer, which yields
3268 faster assembler code. This is what we use for the small common
3269 section. This approach is copied from ecoff.c. */
3270 static asection mips_elf_scom_section;
3271 static asymbol mips_elf_scom_symbol;
3272 static asymbol *mips_elf_scom_symbol_ptr;
3274 /* MIPS ELF also uses an acommon section, which represents an
3275 allocated common symbol which may be overridden by a
3276 definition in a shared library. */
3277 static asection mips_elf_acom_section;
3278 static asymbol mips_elf_acom_symbol;
3279 static asymbol *mips_elf_acom_symbol_ptr;
3281 /* Handle the special MIPS section numbers that a symbol may use.
3282 This is used for both the 32-bit and the 64-bit ABI. */
3285 _bfd_mips_elf_symbol_processing (abfd, asym)
3289 elf_symbol_type *elfsym;
3291 elfsym = (elf_symbol_type *) asym;
3292 switch (elfsym->internal_elf_sym.st_shndx)
3294 case SHN_MIPS_ACOMMON:
3295 /* This section is used in a dynamically linked executable file.
3296 It is an allocated common section. The dynamic linker can
3297 either resolve these symbols to something in a shared
3298 library, or it can just leave them here. For our purposes,
3299 we can consider these symbols to be in a new section. */
3300 if (mips_elf_acom_section.name == NULL)
3302 /* Initialize the acommon section. */
3303 mips_elf_acom_section.name = ".acommon";
3304 mips_elf_acom_section.flags = SEC_ALLOC;
3305 mips_elf_acom_section.output_section = &mips_elf_acom_section;
3306 mips_elf_acom_section.symbol = &mips_elf_acom_symbol;
3307 mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr;
3308 mips_elf_acom_symbol.name = ".acommon";
3309 mips_elf_acom_symbol.flags = BSF_SECTION_SYM;
3310 mips_elf_acom_symbol.section = &mips_elf_acom_section;
3311 mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol;
3313 asym->section = &mips_elf_acom_section;
3317 /* Common symbols less than the GP size are automatically
3318 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3319 if (asym->value > elf_gp_size (abfd)
3320 || IRIX_COMPAT (abfd) == ict_irix6)
3323 case SHN_MIPS_SCOMMON:
3324 if (mips_elf_scom_section.name == NULL)
3326 /* Initialize the small common section. */
3327 mips_elf_scom_section.name = ".scommon";
3328 mips_elf_scom_section.flags = SEC_IS_COMMON;
3329 mips_elf_scom_section.output_section = &mips_elf_scom_section;
3330 mips_elf_scom_section.symbol = &mips_elf_scom_symbol;
3331 mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr;
3332 mips_elf_scom_symbol.name = ".scommon";
3333 mips_elf_scom_symbol.flags = BSF_SECTION_SYM;
3334 mips_elf_scom_symbol.section = &mips_elf_scom_section;
3335 mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol;
3337 asym->section = &mips_elf_scom_section;
3338 asym->value = elfsym->internal_elf_sym.st_size;
3341 case SHN_MIPS_SUNDEFINED:
3342 asym->section = bfd_und_section_ptr;
3345 #if 0 /* for SGI_COMPAT */
3347 asym->section = mips_elf_text_section_ptr;
3351 asym->section = mips_elf_data_section_ptr;
3357 /* When creating an Irix 5 executable, we need REGINFO and RTPROC
3361 _bfd_mips_elf_additional_program_headers (abfd)
3367 /* See if we need a PT_MIPS_REGINFO segment. */
3368 s = bfd_get_section_by_name (abfd, ".reginfo");
3369 if (s && (s->flags & SEC_LOAD))
3372 /* See if we need a PT_MIPS_OPTIONS segment. */
3373 if (IRIX_COMPAT (abfd) == ict_irix6
3374 && bfd_get_section_by_name (abfd,
3375 MIPS_ELF_OPTIONS_SECTION_NAME (abfd)))
3378 /* See if we need a PT_MIPS_RTPROC segment. */
3379 if (IRIX_COMPAT (abfd) == ict_irix5
3380 && bfd_get_section_by_name (abfd, ".dynamic")
3381 && bfd_get_section_by_name (abfd, ".mdebug"))
3387 /* Modify the segment map for an Irix 5 executable. */
3390 _bfd_mips_elf_modify_segment_map (abfd)
3394 struct elf_segment_map *m, **pm;
3396 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3398 s = bfd_get_section_by_name (abfd, ".reginfo");
3399 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3401 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3402 if (m->p_type == PT_MIPS_REGINFO)
3406 m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m);
3410 m->p_type = PT_MIPS_REGINFO;
3414 /* We want to put it after the PHDR and INTERP segments. */
3415 pm = &elf_tdata (abfd)->segment_map;
3417 && ((*pm)->p_type == PT_PHDR
3418 || (*pm)->p_type == PT_INTERP))
3426 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3427 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3428 PT_OPTIONS segement immediately following the program header
3430 if (IRIX_COMPAT (abfd) == ict_irix6)
3434 for (s = abfd->sections; s; s = s->next)
3435 if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS)
3440 struct elf_segment_map *options_segment;
3442 /* Usually, there's a program header table. But, sometimes
3443 there's not (like when running the `ld' testsuite). So,
3444 if there's no program header table, we just put the
3445 options segement at the end. */
3446 for (pm = &elf_tdata (abfd)->segment_map;
3449 if ((*pm)->p_type == PT_PHDR)
3452 options_segment = bfd_zalloc (abfd,
3453 sizeof (struct elf_segment_map));
3454 options_segment->next = *pm;
3455 options_segment->p_type = PT_MIPS_OPTIONS;
3456 options_segment->p_flags = PF_R;
3457 options_segment->p_flags_valid = true;
3458 options_segment->count = 1;
3459 options_segment->sections[0] = s;
3460 *pm = options_segment;
3465 if (IRIX_COMPAT (abfd) == ict_irix5)
3467 /* If there are .dynamic and .mdebug sections, we make a room
3468 for the RTPROC header. FIXME: Rewrite without section names. */
3469 if (bfd_get_section_by_name (abfd, ".interp") == NULL
3470 && bfd_get_section_by_name (abfd, ".dynamic") != NULL
3471 && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
3473 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3474 if (m->p_type == PT_MIPS_RTPROC)
3478 m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m);
3482 m->p_type = PT_MIPS_RTPROC;
3484 s = bfd_get_section_by_name (abfd, ".rtproc");
3489 m->p_flags_valid = 1;
3497 /* We want to put it after the DYNAMIC segment. */
3498 pm = &elf_tdata (abfd)->segment_map;
3499 while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
3509 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
3510 .dynstr, .dynsym, and .hash sections, and everything in
3512 for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL;
3514 if ((*pm)->p_type == PT_DYNAMIC)
3517 if (IRIX_COMPAT (abfd) == ict_none)
3519 /* For a normal mips executable the permissions for the PT_DYNAMIC
3520 segment are read, write and execute. We do that here since
3521 the code in elf.c sets only the read permission. This matters
3522 sometimes for the dynamic linker. */
3523 if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
3525 m->p_flags = PF_R | PF_W | PF_X;
3526 m->p_flags_valid = 1;
3530 && m->count == 1 && strcmp (m->sections[0]->name, ".dynamic") == 0)
3532 static const char *sec_names[] =
3534 ".dynamic", ".dynstr", ".dynsym", ".hash"
3538 struct elf_segment_map *n;
3542 for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
3544 s = bfd_get_section_by_name (abfd, sec_names[i]);
3545 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3551 sz = s->_cooked_size;
3554 if (high < s->vma + sz)
3560 for (s = abfd->sections; s != NULL; s = s->next)
3561 if ((s->flags & SEC_LOAD) != 0
3564 + (s->_cooked_size !=
3565 0 ? s->_cooked_size : s->_raw_size)) <= high))
3568 n = ((struct elf_segment_map *)
3569 bfd_zalloc (abfd, sizeof *n + (c - 1) * sizeof (asection *)));
3576 for (s = abfd->sections; s != NULL; s = s->next)
3578 if ((s->flags & SEC_LOAD) != 0
3581 + (s->_cooked_size != 0 ?
3582 s->_cooked_size : s->_raw_size)) <= high))
3596 /* The structure of the runtime procedure descriptor created by the
3597 loader for use by the static exception system. */
3599 typedef struct runtime_pdr {
3600 bfd_vma adr; /* memory address of start of procedure */
3601 long regmask; /* save register mask */
3602 long regoffset; /* save register offset */
3603 long fregmask; /* save floating point register mask */
3604 long fregoffset; /* save floating point register offset */
3605 long frameoffset; /* frame size */
3606 short framereg; /* frame pointer register */
3607 short pcreg; /* offset or reg of return pc */
3608 long irpss; /* index into the runtime string table */
3610 struct exception_info *exception_info;/* pointer to exception array */
3612 #define cbRPDR sizeof (RPDR)
3613 #define rpdNil ((pRPDR) 0)
3615 /* Swap RPDR (runtime procedure table entry) for output. */
3617 static void ecoff_swap_rpdr_out
3618 PARAMS ((bfd *, const RPDR *, struct rpdr_ext *));
3621 ecoff_swap_rpdr_out (abfd, in, ex)
3624 struct rpdr_ext *ex;
3626 /* ecoff_put_off was defined in ecoffswap.h. */
3627 ecoff_put_off (abfd, in->adr, (bfd_byte *) ex->p_adr);
3628 bfd_h_put_32 (abfd, in->regmask, (bfd_byte *) ex->p_regmask);
3629 bfd_h_put_32 (abfd, in->regoffset, (bfd_byte *) ex->p_regoffset);
3630 bfd_h_put_32 (abfd, in->fregmask, (bfd_byte *) ex->p_fregmask);
3631 bfd_h_put_32 (abfd, in->fregoffset, (bfd_byte *) ex->p_fregoffset);
3632 bfd_h_put_32 (abfd, in->frameoffset, (bfd_byte *) ex->p_frameoffset);
3634 bfd_h_put_16 (abfd, in->framereg, (bfd_byte *) ex->p_framereg);
3635 bfd_h_put_16 (abfd, in->pcreg, (bfd_byte *) ex->p_pcreg);
3637 bfd_h_put_32 (abfd, in->irpss, (bfd_byte *) ex->p_irpss);
3639 ecoff_put_off (abfd, in->exception_info, (bfd_byte *) ex->p_exception_info);
3643 /* Read ECOFF debugging information from a .mdebug section into a
3644 ecoff_debug_info structure. */
3647 _bfd_mips_elf_read_ecoff_info (abfd, section, debug)
3650 struct ecoff_debug_info *debug;
3653 const struct ecoff_debug_swap *swap;
3654 char *ext_hdr = NULL;
3656 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
3657 memset (debug, 0, sizeof (*debug));
3659 ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size);
3660 if (ext_hdr == NULL && swap->external_hdr_size != 0)
3663 if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
3664 swap->external_hdr_size)
3668 symhdr = &debug->symbolic_header;
3669 (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
3671 /* The symbolic header contains absolute file offsets and sizes to
3673 #define READ(ptr, offset, count, size, type) \
3674 if (symhdr->count == 0) \
3675 debug->ptr = NULL; \
3678 debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
3679 if (debug->ptr == NULL) \
3680 goto error_return; \
3681 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
3682 || (bfd_read (debug->ptr, size, symhdr->count, \
3683 abfd) != size * symhdr->count)) \
3684 goto error_return; \
3687 READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
3688 READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
3689 READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
3690 READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
3691 READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
3692 READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
3694 READ (ss, cbSsOffset, issMax, sizeof (char), char *);
3695 READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
3696 READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
3697 READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
3698 READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
3702 debug->adjust = NULL;
3707 if (ext_hdr != NULL)
3709 if (debug->line != NULL)
3711 if (debug->external_dnr != NULL)
3712 free (debug->external_dnr);
3713 if (debug->external_pdr != NULL)
3714 free (debug->external_pdr);
3715 if (debug->external_sym != NULL)
3716 free (debug->external_sym);
3717 if (debug->external_opt != NULL)
3718 free (debug->external_opt);
3719 if (debug->external_aux != NULL)
3720 free (debug->external_aux);
3721 if (debug->ss != NULL)
3723 if (debug->ssext != NULL)
3724 free (debug->ssext);
3725 if (debug->external_fdr != NULL)
3726 free (debug->external_fdr);
3727 if (debug->external_rfd != NULL)
3728 free (debug->external_rfd);
3729 if (debug->external_ext != NULL)
3730 free (debug->external_ext);
3734 /* MIPS ELF local labels start with '$', not 'L'. */
3737 mips_elf_is_local_label_name (abfd, name)
3744 /* On Irix 6, the labels go back to starting with '.', so we accept
3745 the generic ELF local label syntax as well. */
3746 return _bfd_elf_is_local_label_name (abfd, name);
3749 /* MIPS ELF uses a special find_nearest_line routine in order the
3750 handle the ECOFF debugging information. */
3752 struct mips_elf_find_line
3754 struct ecoff_debug_info d;
3755 struct ecoff_find_line i;
3759 _bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
3760 functionname_ptr, line_ptr)
3765 const char **filename_ptr;
3766 const char **functionname_ptr;
3767 unsigned int *line_ptr;
3771 if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
3772 filename_ptr, functionname_ptr,
3776 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
3777 filename_ptr, functionname_ptr,
3779 ABI_64_P (abfd) ? 8 : 0,
3780 &elf_tdata (abfd)->dwarf2_find_line_info))
3783 msec = bfd_get_section_by_name (abfd, ".mdebug");
3787 struct mips_elf_find_line *fi;
3788 const struct ecoff_debug_swap * const swap =
3789 get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
3791 /* If we are called during a link, mips_elf_final_link may have
3792 cleared the SEC_HAS_CONTENTS field. We force it back on here
3793 if appropriate (which it normally will be). */
3794 origflags = msec->flags;
3795 if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
3796 msec->flags |= SEC_HAS_CONTENTS;
3798 fi = elf_tdata (abfd)->find_line_info;
3801 bfd_size_type external_fdr_size;
3804 struct fdr *fdr_ptr;
3806 fi = ((struct mips_elf_find_line *)
3807 bfd_zalloc (abfd, sizeof (struct mips_elf_find_line)));
3810 msec->flags = origflags;
3814 if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
3816 msec->flags = origflags;
3820 /* Swap in the FDR information. */
3821 fi->d.fdr = ((struct fdr *)
3823 (fi->d.symbolic_header.ifdMax *
3824 sizeof (struct fdr))));
3825 if (fi->d.fdr == NULL)
3827 msec->flags = origflags;
3830 external_fdr_size = swap->external_fdr_size;
3831 fdr_ptr = fi->d.fdr;
3832 fraw_src = (char *) fi->d.external_fdr;
3833 fraw_end = (fraw_src
3834 + fi->d.symbolic_header.ifdMax * external_fdr_size);
3835 for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
3836 (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
3838 elf_tdata (abfd)->find_line_info = fi;
3840 /* Note that we don't bother to ever free this information.
3841 find_nearest_line is either called all the time, as in
3842 objdump -l, so the information should be saved, or it is
3843 rarely called, as in ld error messages, so the memory
3844 wasted is unimportant. Still, it would probably be a
3845 good idea for free_cached_info to throw it away. */
3848 if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
3849 &fi->i, filename_ptr, functionname_ptr,
3852 msec->flags = origflags;
3856 msec->flags = origflags;
3859 /* Fall back on the generic ELF find_nearest_line routine. */
3861 return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
3862 filename_ptr, functionname_ptr,
3866 /* The mips16 compiler uses a couple of special sections to handle
3867 floating point arguments.
3869 Section names that look like .mips16.fn.FNNAME contain stubs that
3870 copy floating point arguments from the fp regs to the gp regs and
3871 then jump to FNNAME. If any 32 bit function calls FNNAME, the
3872 call should be redirected to the stub instead. If no 32 bit
3873 function calls FNNAME, the stub should be discarded. We need to
3874 consider any reference to the function, not just a call, because
3875 if the address of the function is taken we will need the stub,
3876 since the address might be passed to a 32 bit function.
3878 Section names that look like .mips16.call.FNNAME contain stubs
3879 that copy floating point arguments from the gp regs to the fp
3880 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
3881 then any 16 bit function that calls FNNAME should be redirected
3882 to the stub instead. If FNNAME is not a 32 bit function, the
3883 stub should be discarded.
3885 .mips16.call.fp.FNNAME sections are similar, but contain stubs
3886 which call FNNAME and then copy the return value from the fp regs
3887 to the gp regs. These stubs store the return value in $18 while
3888 calling FNNAME; any function which might call one of these stubs
3889 must arrange to save $18 around the call. (This case is not
3890 needed for 32 bit functions that call 16 bit functions, because
3891 16 bit functions always return floating point values in both
3894 Note that in all cases FNNAME might be defined statically.
3895 Therefore, FNNAME is not used literally. Instead, the relocation
3896 information will indicate which symbol the section is for.
3898 We record any stubs that we find in the symbol table. */
3900 #define FN_STUB ".mips16.fn."
3901 #define CALL_STUB ".mips16.call."
3902 #define CALL_FP_STUB ".mips16.call.fp."
3904 /* MIPS ELF linker hash table. */
3906 struct mips_elf_link_hash_table
3908 struct elf_link_hash_table root;
3910 /* We no longer use this. */
3911 /* String section indices for the dynamic section symbols. */
3912 bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES];
3914 /* The number of .rtproc entries. */
3915 bfd_size_type procedure_count;
3916 /* The size of the .compact_rel section (if SGI_COMPAT). */
3917 bfd_size_type compact_rel_size;
3918 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
3919 entry is set to the address of __rld_obj_head as in Irix 5. */
3920 boolean use_rld_obj_head;
3921 /* This is the value of the __rld_map or __rld_obj_head symbol. */
3923 /* This is set if we see any mips16 stub sections. */
3924 boolean mips16_stubs_seen;
3927 /* Look up an entry in a MIPS ELF linker hash table. */
3929 #define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
3930 ((struct mips_elf_link_hash_entry *) \
3931 elf_link_hash_lookup (&(table)->root, (string), (create), \
3934 /* Traverse a MIPS ELF linker hash table. */
3936 #define mips_elf_link_hash_traverse(table, func, info) \
3937 (elf_link_hash_traverse \
3939 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
3942 /* Get the MIPS ELF linker hash table from a link_info structure. */
3944 #define mips_elf_hash_table(p) \
3945 ((struct mips_elf_link_hash_table *) ((p)->hash))
3947 static boolean mips_elf_output_extsym
3948 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
3950 /* Create an entry in a MIPS ELF linker hash table. */
3952 static struct bfd_hash_entry *
3953 mips_elf_link_hash_newfunc (entry, table, string)
3954 struct bfd_hash_entry *entry;
3955 struct bfd_hash_table *table;
3958 struct mips_elf_link_hash_entry *ret =
3959 (struct mips_elf_link_hash_entry *) entry;
3961 /* Allocate the structure if it has not already been allocated by a
3963 if (ret == (struct mips_elf_link_hash_entry *) NULL)
3964 ret = ((struct mips_elf_link_hash_entry *)
3965 bfd_hash_allocate (table,
3966 sizeof (struct mips_elf_link_hash_entry)));
3967 if (ret == (struct mips_elf_link_hash_entry *) NULL)
3968 return (struct bfd_hash_entry *) ret;
3970 /* Call the allocation method of the superclass. */
3971 ret = ((struct mips_elf_link_hash_entry *)
3972 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3974 if (ret != (struct mips_elf_link_hash_entry *) NULL)
3976 /* Set local fields. */
3977 memset (&ret->esym, 0, sizeof (EXTR));
3978 /* We use -2 as a marker to indicate that the information has
3979 not been set. -1 means there is no associated ifd. */
3981 ret->possibly_dynamic_relocs = 0;
3982 ret->min_dyn_reloc_index = 0;
3983 ret->no_fn_stub = false;
3984 ret->fn_stub = NULL;
3985 ret->need_fn_stub = false;
3986 ret->call_stub = NULL;
3987 ret->call_fp_stub = NULL;
3990 return (struct bfd_hash_entry *) ret;
3994 _bfd_mips_elf_hide_symbol (info, h)
3995 struct bfd_link_info *info;
3996 struct mips_elf_link_hash_entry *h;
4000 struct mips_got_info *g;
4001 dynobj = elf_hash_table (info)->dynobj;
4002 got = bfd_get_section_by_name (dynobj, ".got");
4003 g = (struct mips_got_info *) elf_section_data (got)->tdata;
4005 h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
4006 h->root.plt.offset = (bfd_vma) -1;
4007 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
4008 h->root.dynindx = -1;
4010 /* FIXME: Do we allocate too much GOT space here? */
4012 got->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
4015 /* Create a MIPS ELF linker hash table. */
4017 struct bfd_link_hash_table *
4018 _bfd_mips_elf_link_hash_table_create (abfd)
4021 struct mips_elf_link_hash_table *ret;
4023 ret = ((struct mips_elf_link_hash_table *)
4024 bfd_alloc (abfd, sizeof (struct mips_elf_link_hash_table)));
4025 if (ret == (struct mips_elf_link_hash_table *) NULL)
4028 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
4029 mips_elf_link_hash_newfunc))
4031 bfd_release (abfd, ret);
4036 /* We no longer use this. */
4037 for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++)
4038 ret->dynsym_sec_strindex[i] = (bfd_size_type) -1;
4040 ret->procedure_count = 0;
4041 ret->compact_rel_size = 0;
4042 ret->use_rld_obj_head = false;
4044 ret->mips16_stubs_seen = false;
4046 return &ret->root.root;
4049 /* Hook called by the linker routine which adds symbols from an object
4050 file. We must handle the special MIPS section numbers here. */
4053 _bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4055 struct bfd_link_info *info;
4056 const Elf_Internal_Sym *sym;
4058 flagword *flagsp ATTRIBUTE_UNUSED;
4062 if (SGI_COMPAT (abfd)
4063 && (abfd->flags & DYNAMIC) != 0
4064 && strcmp (*namep, "_rld_new_interface") == 0)
4066 /* Skip Irix 5 rld entry name. */
4071 switch (sym->st_shndx)
4074 /* Common symbols less than the GP size are automatically
4075 treated as SHN_MIPS_SCOMMON symbols. */
4076 if (sym->st_size > elf_gp_size (abfd)
4077 || IRIX_COMPAT (abfd) == ict_irix6)
4080 case SHN_MIPS_SCOMMON:
4081 *secp = bfd_make_section_old_way (abfd, ".scommon");
4082 (*secp)->flags |= SEC_IS_COMMON;
4083 *valp = sym->st_size;
4087 /* This section is used in a shared object. */
4088 if (elf_tdata (abfd)->elf_text_section == NULL)
4090 asymbol *elf_text_symbol;
4091 asection *elf_text_section;
4093 elf_text_section = bfd_zalloc (abfd, sizeof (asection));
4094 if (elf_text_section == NULL)
4097 elf_text_symbol = bfd_zalloc (abfd, sizeof (asymbol));
4098 if (elf_text_symbol == NULL)
4101 /* Initialize the section. */
4103 elf_tdata (abfd)->elf_text_section = elf_text_section;
4104 elf_tdata (abfd)->elf_text_symbol = elf_text_symbol;
4106 elf_text_section->symbol = elf_text_symbol;
4107 elf_text_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_text_symbol;
4109 elf_text_section->name = ".text";
4110 elf_text_section->flags = SEC_NO_FLAGS;
4111 elf_text_section->output_section = NULL;
4112 elf_text_section->owner = abfd;
4113 elf_text_symbol->name = ".text";
4114 elf_text_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4115 elf_text_symbol->section = elf_text_section;
4117 /* This code used to do *secp = bfd_und_section_ptr if
4118 info->shared. I don't know why, and that doesn't make sense,
4119 so I took it out. */
4120 *secp = elf_tdata (abfd)->elf_text_section;
4123 case SHN_MIPS_ACOMMON:
4124 /* Fall through. XXX Can we treat this as allocated data? */
4126 /* This section is used in a shared object. */
4127 if (elf_tdata (abfd)->elf_data_section == NULL)
4129 asymbol *elf_data_symbol;
4130 asection *elf_data_section;
4132 elf_data_section = bfd_zalloc (abfd, sizeof (asection));
4133 if (elf_data_section == NULL)
4136 elf_data_symbol = bfd_zalloc (abfd, sizeof (asymbol));
4137 if (elf_data_symbol == NULL)
4140 /* Initialize the section. */
4142 elf_tdata (abfd)->elf_data_section = elf_data_section;
4143 elf_tdata (abfd)->elf_data_symbol = elf_data_symbol;
4145 elf_data_section->symbol = elf_data_symbol;
4146 elf_data_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_data_symbol;
4148 elf_data_section->name = ".data";
4149 elf_data_section->flags = SEC_NO_FLAGS;
4150 elf_data_section->output_section = NULL;
4151 elf_data_section->owner = abfd;
4152 elf_data_symbol->name = ".data";
4153 elf_data_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4154 elf_data_symbol->section = elf_data_section;
4156 /* This code used to do *secp = bfd_und_section_ptr if
4157 info->shared. I don't know why, and that doesn't make sense,
4158 so I took it out. */
4159 *secp = elf_tdata (abfd)->elf_data_section;
4162 case SHN_MIPS_SUNDEFINED:
4163 *secp = bfd_und_section_ptr;
4167 if (SGI_COMPAT (abfd)
4169 && info->hash->creator == abfd->xvec
4170 && strcmp (*namep, "__rld_obj_head") == 0)
4172 struct elf_link_hash_entry *h;
4174 /* Mark __rld_obj_head as dynamic. */
4176 if (! (_bfd_generic_link_add_one_symbol
4177 (info, abfd, *namep, BSF_GLOBAL, *secp,
4178 (bfd_vma) *valp, (const char *) NULL, false,
4179 get_elf_backend_data (abfd)->collect,
4180 (struct bfd_link_hash_entry **) &h)))
4182 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4183 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4184 h->type = STT_OBJECT;
4186 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
4189 mips_elf_hash_table (info)->use_rld_obj_head = true;
4192 /* If this is a mips16 text symbol, add 1 to the value to make it
4193 odd. This will cause something like .word SYM to come up with
4194 the right value when it is loaded into the PC. */
4195 if (sym->st_other == STO_MIPS16)
4201 /* Structure used to pass information to mips_elf_output_extsym. */
4206 struct bfd_link_info *info;
4207 struct ecoff_debug_info *debug;
4208 const struct ecoff_debug_swap *swap;
4212 /* This routine is used to write out ECOFF debugging external symbol
4213 information. It is called via mips_elf_link_hash_traverse. The
4214 ECOFF external symbol information must match the ELF external
4215 symbol information. Unfortunately, at this point we don't know
4216 whether a symbol is required by reloc information, so the two
4217 tables may wind up being different. We must sort out the external
4218 symbol information before we can set the final size of the .mdebug
4219 section, and we must set the size of the .mdebug section before we
4220 can relocate any sections, and we can't know which symbols are
4221 required by relocation until we relocate the sections.
4222 Fortunately, it is relatively unlikely that any symbol will be
4223 stripped but required by a reloc. In particular, it can not happen
4224 when generating a final executable. */
4227 mips_elf_output_extsym (h, data)
4228 struct mips_elf_link_hash_entry *h;
4231 struct extsym_info *einfo = (struct extsym_info *) data;
4233 asection *sec, *output_section;
4235 if (h->root.indx == -2)
4237 else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4238 || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
4239 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4240 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
4242 else if (einfo->info->strip == strip_all
4243 || (einfo->info->strip == strip_some
4244 && bfd_hash_lookup (einfo->info->keep_hash,
4245 h->root.root.root.string,
4246 false, false) == NULL))
4254 if (h->esym.ifd == -2)
4257 h->esym.cobol_main = 0;
4258 h->esym.weakext = 0;
4259 h->esym.reserved = 0;
4260 h->esym.ifd = ifdNil;
4261 h->esym.asym.value = 0;
4262 h->esym.asym.st = stGlobal;
4264 if (h->root.root.type == bfd_link_hash_undefined
4265 || h->root.root.type == bfd_link_hash_undefweak)
4269 /* Use undefined class. Also, set class and type for some
4271 name = h->root.root.root.string;
4272 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
4273 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
4275 h->esym.asym.sc = scData;
4276 h->esym.asym.st = stLabel;
4277 h->esym.asym.value = 0;
4279 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
4281 h->esym.asym.sc = scAbs;
4282 h->esym.asym.st = stLabel;
4283 h->esym.asym.value =
4284 mips_elf_hash_table (einfo->info)->procedure_count;
4286 else if (strcmp (name, "_gp_disp") == 0)
4288 h->esym.asym.sc = scAbs;
4289 h->esym.asym.st = stLabel;
4290 h->esym.asym.value = elf_gp (einfo->abfd);
4293 h->esym.asym.sc = scUndefined;
4295 else if (h->root.root.type != bfd_link_hash_defined
4296 && h->root.root.type != bfd_link_hash_defweak)
4297 h->esym.asym.sc = scAbs;
4302 sec = h->root.root.u.def.section;
4303 output_section = sec->output_section;
4305 /* When making a shared library and symbol h is the one from
4306 the another shared library, OUTPUT_SECTION may be null. */
4307 if (output_section == NULL)
4308 h->esym.asym.sc = scUndefined;
4311 name = bfd_section_name (output_section->owner, output_section);
4313 if (strcmp (name, ".text") == 0)
4314 h->esym.asym.sc = scText;
4315 else if (strcmp (name, ".data") == 0)
4316 h->esym.asym.sc = scData;
4317 else if (strcmp (name, ".sdata") == 0)
4318 h->esym.asym.sc = scSData;
4319 else if (strcmp (name, ".rodata") == 0
4320 || strcmp (name, ".rdata") == 0)
4321 h->esym.asym.sc = scRData;
4322 else if (strcmp (name, ".bss") == 0)
4323 h->esym.asym.sc = scBss;
4324 else if (strcmp (name, ".sbss") == 0)
4325 h->esym.asym.sc = scSBss;
4326 else if (strcmp (name, ".init") == 0)
4327 h->esym.asym.sc = scInit;
4328 else if (strcmp (name, ".fini") == 0)
4329 h->esym.asym.sc = scFini;
4331 h->esym.asym.sc = scAbs;
4335 h->esym.asym.reserved = 0;
4336 h->esym.asym.index = indexNil;
4339 if (h->root.root.type == bfd_link_hash_common)
4340 h->esym.asym.value = h->root.root.u.c.size;
4341 else if (h->root.root.type == bfd_link_hash_defined
4342 || h->root.root.type == bfd_link_hash_defweak)
4344 if (h->esym.asym.sc == scCommon)
4345 h->esym.asym.sc = scBss;
4346 else if (h->esym.asym.sc == scSCommon)
4347 h->esym.asym.sc = scSBss;
4349 sec = h->root.root.u.def.section;
4350 output_section = sec->output_section;
4351 if (output_section != NULL)
4352 h->esym.asym.value = (h->root.root.u.def.value
4353 + sec->output_offset
4354 + output_section->vma);
4356 h->esym.asym.value = 0;
4358 else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4360 struct mips_elf_link_hash_entry *hd = h;
4361 boolean no_fn_stub = h->no_fn_stub;
4363 while (hd->root.root.type == bfd_link_hash_indirect)
4365 hd = (struct mips_elf_link_hash_entry *)h->root.root.u.i.link;
4366 no_fn_stub = no_fn_stub || hd->no_fn_stub;
4371 /* Set type and value for a symbol with a function stub. */
4372 h->esym.asym.st = stProc;
4373 sec = hd->root.root.u.def.section;
4375 h->esym.asym.value = 0;
4378 output_section = sec->output_section;
4379 if (output_section != NULL)
4380 h->esym.asym.value = (hd->root.plt.offset
4381 + sec->output_offset
4382 + output_section->vma);
4384 h->esym.asym.value = 0;
4392 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
4393 h->root.root.root.string,
4396 einfo->failed = true;
4403 /* Create a runtime procedure table from the .mdebug section. */
4406 mips_elf_create_procedure_table (handle, abfd, info, s, debug)
4409 struct bfd_link_info *info;
4411 struct ecoff_debug_info *debug;
4413 const struct ecoff_debug_swap *swap;
4414 HDRR *hdr = &debug->symbolic_header;
4416 struct rpdr_ext *erp;
4418 struct pdr_ext *epdr;
4419 struct sym_ext *esym;
4422 unsigned long size, count;
4423 unsigned long sindex;
4427 const char *no_name_func = _("static procedure (no name)");
4435 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4437 sindex = strlen (no_name_func) + 1;
4438 count = hdr->ipdMax;
4441 size = swap->external_pdr_size;
4443 epdr = (struct pdr_ext *) bfd_malloc (size * count);
4447 if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr))
4450 size = sizeof (RPDR);
4451 rp = rpdr = (RPDR *) bfd_malloc (size * count);
4455 sv = (char **) bfd_malloc (sizeof (char *) * count);
4459 count = hdr->isymMax;
4460 size = swap->external_sym_size;
4461 esym = (struct sym_ext *) bfd_malloc (size * count);
4465 if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym))
4468 count = hdr->issMax;
4469 ss = (char *) bfd_malloc (count);
4472 if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss))
4475 count = hdr->ipdMax;
4476 for (i = 0; i < count; i++, rp++)
4478 (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr);
4479 (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym);
4480 rp->adr = sym.value;
4481 rp->regmask = pdr.regmask;
4482 rp->regoffset = pdr.regoffset;
4483 rp->fregmask = pdr.fregmask;
4484 rp->fregoffset = pdr.fregoffset;
4485 rp->frameoffset = pdr.frameoffset;
4486 rp->framereg = pdr.framereg;
4487 rp->pcreg = pdr.pcreg;
4489 sv[i] = ss + sym.iss;
4490 sindex += strlen (sv[i]) + 1;
4494 size = sizeof (struct rpdr_ext) * (count + 2) + sindex;
4495 size = BFD_ALIGN (size, 16);
4496 rtproc = (PTR) bfd_alloc (abfd, size);
4499 mips_elf_hash_table (info)->procedure_count = 0;
4503 mips_elf_hash_table (info)->procedure_count = count + 2;
4505 erp = (struct rpdr_ext *) rtproc;
4506 memset (erp, 0, sizeof (struct rpdr_ext));
4508 str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2);
4509 strcpy (str, no_name_func);
4510 str += strlen (no_name_func) + 1;
4511 for (i = 0; i < count; i++)
4513 ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i);
4514 strcpy (str, sv[i]);
4515 str += strlen (sv[i]) + 1;
4517 ecoff_put_off (abfd, (bfd_vma) -1, (bfd_byte *) (erp + count)->p_adr);
4519 /* Set the size and contents of .rtproc section. */
4520 s->_raw_size = size;
4521 s->contents = (bfd_byte *) rtproc;
4523 /* Skip this section later on (I don't think this currently
4524 matters, but someday it might). */
4525 s->link_order_head = (struct bfd_link_order *) NULL;
4554 /* A comparison routine used to sort .gptab entries. */
4557 gptab_compare (p1, p2)
4561 const Elf32_gptab *a1 = (const Elf32_gptab *) p1;
4562 const Elf32_gptab *a2 = (const Elf32_gptab *) p2;
4564 return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value;
4567 /* We need to use a special link routine to handle the .reginfo and
4568 the .mdebug sections. We need to merge all instances of these
4569 sections together, not write them all out sequentially. */
4572 _bfd_mips_elf_final_link (abfd, info)
4574 struct bfd_link_info *info;
4578 struct bfd_link_order *p;
4579 asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
4580 asection *rtproc_sec;
4581 Elf32_RegInfo reginfo;
4582 struct ecoff_debug_info debug;
4583 const struct ecoff_debug_swap *swap
4584 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4585 HDRR *symhdr = &debug.symbolic_header;
4586 PTR mdebug_handle = NULL;
4591 static const char * const name[] =
4593 ".text", ".init", ".fini", ".data",
4594 ".rodata", ".sdata", ".sbss", ".bss"
4596 static const int sc[] =
4598 scText, scInit, scFini, scData,
4599 scRData, scSData, scSBss, scBss
4602 /* If all the things we linked together were PIC, but we're
4603 producing an executable (rather than a shared object), then the
4604 resulting file is CPIC (i.e., it calls PIC code.) */
4606 && !info->relocateable
4607 && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
4609 elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
4610 elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
4613 /* We'd carefully arranged the dynamic symbol indices, and then the
4614 generic size_dynamic_sections renumbered them out from under us.
4615 Rather than trying somehow to prevent the renumbering, just do
4617 if (elf_hash_table (info)->dynamic_sections_created)
4621 struct mips_got_info *g;
4623 /* When we resort, we must tell mips_elf_sort_hash_table what
4624 the lowest index it may use is. That's the number of section
4625 symbols we're going to add. The generic ELF linker only
4626 adds these symbols when building a shared object. Note that
4627 we count the sections after (possibly) removing the .options
4629 if (!mips_elf_sort_hash_table (info, (info->shared
4630 ? bfd_count_sections (abfd) + 1
4634 /* Make sure we didn't grow the global .got region. */
4635 dynobj = elf_hash_table (info)->dynobj;
4636 got = bfd_get_section_by_name (dynobj, ".got");
4637 g = (struct mips_got_info *) elf_section_data (got)->tdata;
4639 if (g->global_gotsym != NULL)
4640 BFD_ASSERT ((elf_hash_table (info)->dynsymcount
4641 - g->global_gotsym->dynindx)
4642 <= g->global_gotno);
4645 /* On IRIX5, we omit the .options section. On IRIX6, however, we
4646 include it, even though we don't process it quite right. (Some
4647 entries are supposed to be merged.) Empirically, we seem to be
4648 better off including it then not. */
4649 if (IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
4650 for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
4652 if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
4654 for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
4655 if (p->type == bfd_indirect_link_order)
4656 p->u.indirect.section->flags &= ~SEC_HAS_CONTENTS;
4657 (*secpp)->link_order_head = NULL;
4658 *secpp = (*secpp)->next;
4659 --abfd->section_count;
4665 /* Get a value for the GP register. */
4666 if (elf_gp (abfd) == 0)
4668 struct bfd_link_hash_entry *h;
4670 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
4671 if (h != (struct bfd_link_hash_entry *) NULL
4672 && h->type == bfd_link_hash_defined)
4673 elf_gp (abfd) = (h->u.def.value
4674 + h->u.def.section->output_section->vma
4675 + h->u.def.section->output_offset);
4676 else if (info->relocateable)
4680 /* Find the GP-relative section with the lowest offset. */
4682 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
4684 && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
4687 /* And calculate GP relative to that. */
4688 elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd);
4692 /* If the relocate_section function needs to do a reloc
4693 involving the GP value, it should make a reloc_dangerous
4694 callback to warn that GP is not defined. */
4698 /* Go through the sections and collect the .reginfo and .mdebug
4702 gptab_data_sec = NULL;
4703 gptab_bss_sec = NULL;
4704 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
4706 if (strcmp (o->name, ".reginfo") == 0)
4708 memset (®info, 0, sizeof reginfo);
4710 /* We have found the .reginfo section in the output file.
4711 Look through all the link_orders comprising it and merge
4712 the information together. */
4713 for (p = o->link_order_head;
4714 p != (struct bfd_link_order *) NULL;
4717 asection *input_section;
4719 Elf32_External_RegInfo ext;
4722 if (p->type != bfd_indirect_link_order)
4724 if (p->type == bfd_fill_link_order)
4729 input_section = p->u.indirect.section;
4730 input_bfd = input_section->owner;
4732 /* The linker emulation code has probably clobbered the
4733 size to be zero bytes. */
4734 if (input_section->_raw_size == 0)
4735 input_section->_raw_size = sizeof (Elf32_External_RegInfo);
4737 if (! bfd_get_section_contents (input_bfd, input_section,
4743 bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub);
4745 reginfo.ri_gprmask |= sub.ri_gprmask;
4746 reginfo.ri_cprmask[0] |= sub.ri_cprmask[0];
4747 reginfo.ri_cprmask[1] |= sub.ri_cprmask[1];
4748 reginfo.ri_cprmask[2] |= sub.ri_cprmask[2];
4749 reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
4751 /* ri_gp_value is set by the function
4752 mips_elf32_section_processing when the section is
4753 finally written out. */
4755 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4756 elf_link_input_bfd ignores this section. */
4757 input_section->flags &= ~SEC_HAS_CONTENTS;
4760 /* Size has been set in mips_elf_always_size_sections */
4761 BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo));
4763 /* Skip this section later on (I don't think this currently
4764 matters, but someday it might). */
4765 o->link_order_head = (struct bfd_link_order *) NULL;
4770 if (strcmp (o->name, ".mdebug") == 0)
4772 struct extsym_info einfo;
4774 /* We have found the .mdebug section in the output file.
4775 Look through all the link_orders comprising it and merge
4776 the information together. */
4777 symhdr->magic = swap->sym_magic;
4778 /* FIXME: What should the version stamp be? */
4780 symhdr->ilineMax = 0;
4784 symhdr->isymMax = 0;
4785 symhdr->ioptMax = 0;
4786 symhdr->iauxMax = 0;
4788 symhdr->issExtMax = 0;
4791 symhdr->iextMax = 0;
4793 /* We accumulate the debugging information itself in the
4794 debug_info structure. */
4796 debug.external_dnr = NULL;
4797 debug.external_pdr = NULL;
4798 debug.external_sym = NULL;
4799 debug.external_opt = NULL;
4800 debug.external_aux = NULL;
4802 debug.ssext = debug.ssext_end = NULL;
4803 debug.external_fdr = NULL;
4804 debug.external_rfd = NULL;
4805 debug.external_ext = debug.external_ext_end = NULL;
4807 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
4808 if (mdebug_handle == (PTR) NULL)
4812 esym.cobol_main = 0;
4816 esym.asym.iss = issNil;
4817 esym.asym.st = stLocal;
4818 esym.asym.reserved = 0;
4819 esym.asym.index = indexNil;
4821 for (i = 0; i < 8; i++)
4823 esym.asym.sc = sc[i];
4824 s = bfd_get_section_by_name (abfd, name[i]);
4827 esym.asym.value = s->vma;
4828 last = s->vma + s->_raw_size;
4831 esym.asym.value = last;
4832 if (!bfd_ecoff_debug_one_external (abfd, &debug, swap,
4837 for (p = o->link_order_head;
4838 p != (struct bfd_link_order *) NULL;
4841 asection *input_section;
4843 const struct ecoff_debug_swap *input_swap;
4844 struct ecoff_debug_info input_debug;
4848 if (p->type != bfd_indirect_link_order)
4850 if (p->type == bfd_fill_link_order)
4855 input_section = p->u.indirect.section;
4856 input_bfd = input_section->owner;
4858 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
4859 || (get_elf_backend_data (input_bfd)
4860 ->elf_backend_ecoff_debug_swap) == NULL)
4862 /* I don't know what a non MIPS ELF bfd would be
4863 doing with a .mdebug section, but I don't really
4864 want to deal with it. */
4868 input_swap = (get_elf_backend_data (input_bfd)
4869 ->elf_backend_ecoff_debug_swap);
4871 BFD_ASSERT (p->size == input_section->_raw_size);
4873 /* The ECOFF linking code expects that we have already
4874 read in the debugging information and set up an
4875 ecoff_debug_info structure, so we do that now. */
4876 if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
4880 if (! (bfd_ecoff_debug_accumulate
4881 (mdebug_handle, abfd, &debug, swap, input_bfd,
4882 &input_debug, input_swap, info)))
4885 /* Loop through the external symbols. For each one with
4886 interesting information, try to find the symbol in
4887 the linker global hash table and save the information
4888 for the output external symbols. */
4889 eraw_src = input_debug.external_ext;
4890 eraw_end = (eraw_src
4891 + (input_debug.symbolic_header.iextMax
4892 * input_swap->external_ext_size));
4894 eraw_src < eraw_end;
4895 eraw_src += input_swap->external_ext_size)
4899 struct mips_elf_link_hash_entry *h;
4901 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
4902 if (ext.asym.sc == scNil
4903 || ext.asym.sc == scUndefined
4904 || ext.asym.sc == scSUndefined)
4907 name = input_debug.ssext + ext.asym.iss;
4908 h = mips_elf_link_hash_lookup (mips_elf_hash_table (info),
4909 name, false, false, true);
4910 if (h == NULL || h->esym.ifd != -2)
4916 < input_debug.symbolic_header.ifdMax);
4917 ext.ifd = input_debug.ifdmap[ext.ifd];
4923 /* Free up the information we just read. */
4924 free (input_debug.line);
4925 free (input_debug.external_dnr);
4926 free (input_debug.external_pdr);
4927 free (input_debug.external_sym);
4928 free (input_debug.external_opt);
4929 free (input_debug.external_aux);
4930 free (input_debug.ss);
4931 free (input_debug.ssext);
4932 free (input_debug.external_fdr);
4933 free (input_debug.external_rfd);
4934 free (input_debug.external_ext);
4936 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4937 elf_link_input_bfd ignores this section. */
4938 input_section->flags &= ~SEC_HAS_CONTENTS;
4941 if (SGI_COMPAT (abfd) && info->shared)
4943 /* Create .rtproc section. */
4944 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
4945 if (rtproc_sec == NULL)
4947 flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
4948 | SEC_LINKER_CREATED | SEC_READONLY);
4950 rtproc_sec = bfd_make_section (abfd, ".rtproc");
4951 if (rtproc_sec == NULL
4952 || ! bfd_set_section_flags (abfd, rtproc_sec, flags)
4953 || ! bfd_set_section_alignment (abfd, rtproc_sec, 4))
4957 if (! mips_elf_create_procedure_table (mdebug_handle, abfd,
4958 info, rtproc_sec, &debug))
4962 /* Build the external symbol information. */
4965 einfo.debug = &debug;
4967 einfo.failed = false;
4968 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
4969 mips_elf_output_extsym,
4974 /* Set the size of the .mdebug section. */
4975 o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
4977 /* Skip this section later on (I don't think this currently
4978 matters, but someday it might). */
4979 o->link_order_head = (struct bfd_link_order *) NULL;
4984 if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
4986 const char *subname;
4989 Elf32_External_gptab *ext_tab;
4992 /* The .gptab.sdata and .gptab.sbss sections hold
4993 information describing how the small data area would
4994 change depending upon the -G switch. These sections
4995 not used in executables files. */
4996 if (! info->relocateable)
5000 for (p = o->link_order_head;
5001 p != (struct bfd_link_order *) NULL;
5004 asection *input_section;
5006 if (p->type != bfd_indirect_link_order)
5008 if (p->type == bfd_fill_link_order)
5013 input_section = p->u.indirect.section;
5015 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5016 elf_link_input_bfd ignores this section. */
5017 input_section->flags &= ~SEC_HAS_CONTENTS;
5020 /* Skip this section later on (I don't think this
5021 currently matters, but someday it might). */
5022 o->link_order_head = (struct bfd_link_order *) NULL;
5024 /* Really remove the section. */
5025 for (secpp = &abfd->sections;
5027 secpp = &(*secpp)->next)
5029 *secpp = (*secpp)->next;
5030 --abfd->section_count;
5035 /* There is one gptab for initialized data, and one for
5036 uninitialized data. */
5037 if (strcmp (o->name, ".gptab.sdata") == 0)
5039 else if (strcmp (o->name, ".gptab.sbss") == 0)
5043 (*_bfd_error_handler)
5044 (_("%s: illegal section name `%s'"),
5045 bfd_get_filename (abfd), o->name);
5046 bfd_set_error (bfd_error_nonrepresentable_section);
5050 /* The linker script always combines .gptab.data and
5051 .gptab.sdata into .gptab.sdata, and likewise for
5052 .gptab.bss and .gptab.sbss. It is possible that there is
5053 no .sdata or .sbss section in the output file, in which
5054 case we must change the name of the output section. */
5055 subname = o->name + sizeof ".gptab" - 1;
5056 if (bfd_get_section_by_name (abfd, subname) == NULL)
5058 if (o == gptab_data_sec)
5059 o->name = ".gptab.data";
5061 o->name = ".gptab.bss";
5062 subname = o->name + sizeof ".gptab" - 1;
5063 BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
5066 /* Set up the first entry. */
5068 tab = (Elf32_gptab *) bfd_malloc (c * sizeof (Elf32_gptab));
5071 tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
5072 tab[0].gt_header.gt_unused = 0;
5074 /* Combine the input sections. */
5075 for (p = o->link_order_head;
5076 p != (struct bfd_link_order *) NULL;
5079 asection *input_section;
5083 bfd_size_type gpentry;
5085 if (p->type != bfd_indirect_link_order)
5087 if (p->type == bfd_fill_link_order)
5092 input_section = p->u.indirect.section;
5093 input_bfd = input_section->owner;
5095 /* Combine the gptab entries for this input section one
5096 by one. We know that the input gptab entries are
5097 sorted by ascending -G value. */
5098 size = bfd_section_size (input_bfd, input_section);
5100 for (gpentry = sizeof (Elf32_External_gptab);
5102 gpentry += sizeof (Elf32_External_gptab))
5104 Elf32_External_gptab ext_gptab;
5105 Elf32_gptab int_gptab;
5111 if (! (bfd_get_section_contents
5112 (input_bfd, input_section, (PTR) &ext_gptab,
5113 gpentry, sizeof (Elf32_External_gptab))))
5119 bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab,
5121 val = int_gptab.gt_entry.gt_g_value;
5122 add = int_gptab.gt_entry.gt_bytes - last;
5125 for (look = 1; look < c; look++)
5127 if (tab[look].gt_entry.gt_g_value >= val)
5128 tab[look].gt_entry.gt_bytes += add;
5130 if (tab[look].gt_entry.gt_g_value == val)
5136 Elf32_gptab *new_tab;
5139 /* We need a new table entry. */
5140 new_tab = ((Elf32_gptab *)
5141 bfd_realloc ((PTR) tab,
5142 (c + 1) * sizeof (Elf32_gptab)));
5143 if (new_tab == NULL)
5149 tab[c].gt_entry.gt_g_value = val;
5150 tab[c].gt_entry.gt_bytes = add;
5152 /* Merge in the size for the next smallest -G
5153 value, since that will be implied by this new
5156 for (look = 1; look < c; look++)
5158 if (tab[look].gt_entry.gt_g_value < val
5160 || (tab[look].gt_entry.gt_g_value
5161 > tab[max].gt_entry.gt_g_value)))
5165 tab[c].gt_entry.gt_bytes +=
5166 tab[max].gt_entry.gt_bytes;
5171 last = int_gptab.gt_entry.gt_bytes;
5174 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5175 elf_link_input_bfd ignores this section. */
5176 input_section->flags &= ~SEC_HAS_CONTENTS;
5179 /* The table must be sorted by -G value. */
5181 qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
5183 /* Swap out the table. */
5184 ext_tab = ((Elf32_External_gptab *)
5185 bfd_alloc (abfd, c * sizeof (Elf32_External_gptab)));
5186 if (ext_tab == NULL)
5192 for (i = 0; i < c; i++)
5193 bfd_mips_elf32_swap_gptab_out (abfd, tab + i, ext_tab + i);
5196 o->_raw_size = c * sizeof (Elf32_External_gptab);
5197 o->contents = (bfd_byte *) ext_tab;
5199 /* Skip this section later on (I don't think this currently
5200 matters, but someday it might). */
5201 o->link_order_head = (struct bfd_link_order *) NULL;
5205 /* Invoke the regular ELF backend linker to do all the work. */
5206 if (ABI_64_P (abfd))
5209 if (!bfd_elf64_bfd_final_link (abfd, info))
5216 else if (!bfd_elf32_bfd_final_link (abfd, info))
5219 /* Now write out the computed sections. */
5221 if (reginfo_sec != (asection *) NULL)
5223 Elf32_External_RegInfo ext;
5225 bfd_mips_elf32_swap_reginfo_out (abfd, ®info, &ext);
5226 if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext,
5227 (file_ptr) 0, sizeof ext))
5231 if (mdebug_sec != (asection *) NULL)
5233 BFD_ASSERT (abfd->output_has_begun);
5234 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5236 mdebug_sec->filepos))
5239 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5242 if (gptab_data_sec != (asection *) NULL)
5244 if (! bfd_set_section_contents (abfd, gptab_data_sec,
5245 gptab_data_sec->contents,
5247 gptab_data_sec->_raw_size))
5251 if (gptab_bss_sec != (asection *) NULL)
5253 if (! bfd_set_section_contents (abfd, gptab_bss_sec,
5254 gptab_bss_sec->contents,
5256 gptab_bss_sec->_raw_size))
5260 if (SGI_COMPAT (abfd))
5262 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5263 if (rtproc_sec != NULL)
5265 if (! bfd_set_section_contents (abfd, rtproc_sec,
5266 rtproc_sec->contents,
5268 rtproc_sec->_raw_size))
5276 /* This function is called via qsort() to sort the dynamic relocation
5277 entries by increasing r_symndx value. */
5280 sort_dynamic_relocs (arg1, arg2)
5284 const Elf32_External_Rel *ext_reloc1 = (const Elf32_External_Rel *) arg1;
5285 const Elf32_External_Rel *ext_reloc2 = (const Elf32_External_Rel *) arg2;
5287 Elf_Internal_Rel int_reloc1;
5288 Elf_Internal_Rel int_reloc2;
5290 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc1, &int_reloc1);
5291 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc2, &int_reloc2);
5293 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
5296 /* Returns the GOT section for ABFD. */
5299 mips_elf_got_section (abfd)
5302 return bfd_get_section_by_name (abfd, ".got");
5305 /* Returns the GOT information associated with the link indicated by
5306 INFO. If SGOTP is non-NULL, it is filled in with the GOT
5309 static struct mips_got_info *
5310 mips_elf_got_info (abfd, sgotp)
5315 struct mips_got_info *g;
5317 sgot = mips_elf_got_section (abfd);
5318 BFD_ASSERT (sgot != NULL);
5319 BFD_ASSERT (elf_section_data (sgot) != NULL);
5320 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
5321 BFD_ASSERT (g != NULL);
5328 /* Return whether a relocation is against a local symbol. */
5331 mips_elf_local_relocation_p (input_bfd, relocation, local_sections,
5334 const Elf_Internal_Rela *relocation;
5335 asection **local_sections;
5336 boolean check_forced;
5338 unsigned long r_symndx;
5339 Elf_Internal_Shdr *symtab_hdr;
5340 struct mips_elf_link_hash_entry *h;
5343 r_symndx = ELF32_R_SYM (relocation->r_info);
5344 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5345 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
5347 if (r_symndx < extsymoff)
5349 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
5354 /* Look up the hash table to check whether the symbol
5355 was forced local. */
5356 h = (struct mips_elf_link_hash_entry *)
5357 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
5358 /* Find the real hash-table entry for this symbol. */
5359 while (h->root.root.type == bfd_link_hash_indirect
5360 || h->root.root.type == bfd_link_hash_warning)
5361 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
5362 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
5369 /* Sign-extend VALUE, which has the indicated number of BITS. */
5372 mips_elf_sign_extend (value, bits)
5376 if (value & ((bfd_vma) 1 << (bits - 1)))
5377 /* VALUE is negative. */
5378 value |= ((bfd_vma) - 1) << bits;
5383 /* Return non-zero if the indicated VALUE has overflowed the maximum
5384 range expressable by a signed number with the indicated number of
5388 mips_elf_overflow_p (value, bits)
5392 bfd_signed_vma svalue = (bfd_signed_vma) value;
5394 if (svalue > (1 << (bits - 1)) - 1)
5395 /* The value is too big. */
5397 else if (svalue < -(1 << (bits - 1)))
5398 /* The value is too small. */
5405 /* Calculate the %high function. */
5408 mips_elf_high (value)
5411 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
5414 /* Calculate the %higher function. */
5417 mips_elf_higher (value)
5418 bfd_vma value ATTRIBUTE_UNUSED;
5421 return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
5424 return (bfd_vma) -1;
5428 /* Calculate the %highest function. */
5431 mips_elf_highest (value)
5432 bfd_vma value ATTRIBUTE_UNUSED;
5435 return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff;
5438 return (bfd_vma) -1;
5442 /* Returns the GOT index for the global symbol indicated by H. */
5445 mips_elf_global_got_index (abfd, h)
5447 struct elf_link_hash_entry *h;
5451 struct mips_got_info *g;
5453 g = mips_elf_got_info (abfd, &sgot);
5455 /* Once we determine the global GOT entry with the lowest dynamic
5456 symbol table index, we must put all dynamic symbols with greater
5457 indices into the GOT. That makes it easy to calculate the GOT
5459 BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
5460 index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
5461 * MIPS_ELF_GOT_SIZE (abfd));
5462 BFD_ASSERT (index < sgot->_raw_size);
5467 /* Returns the offset for the entry at the INDEXth position
5471 mips_elf_got_offset_from_index (dynobj, output_bfd, index)
5479 sgot = mips_elf_got_section (dynobj);
5480 gp = _bfd_get_gp_value (output_bfd);
5481 return (sgot->output_section->vma + sgot->output_offset + index -
5485 /* If H is a symbol that needs a global GOT entry, but has a dynamic
5486 symbol table index lower than any we've seen to date, record it for
5490 mips_elf_record_global_got_symbol (h, info, g)
5491 struct elf_link_hash_entry *h;
5492 struct bfd_link_info *info;
5493 struct mips_got_info *g ATTRIBUTE_UNUSED;
5495 /* A global symbol in the GOT must also be in the dynamic symbol
5497 if (h->dynindx == -1
5498 && !bfd_elf32_link_record_dynamic_symbol (info, h))
5501 /* If we've already marked this entry as need GOT space, we don't
5502 need to do it again. */
5503 if (h->got.offset != (bfd_vma) - 1)
5506 /* By setting this to a value other than -1, we are indicating that
5507 there needs to be a GOT entry for H. */
5513 /* This structure is passed to mips_elf_sort_hash_table_f when sorting
5514 the dynamic symbols. */
5516 struct mips_elf_hash_sort_data
5518 /* The symbol in the global GOT with the lowest dynamic symbol table
5520 struct elf_link_hash_entry *low;
5521 /* The least dynamic symbol table index corresponding to a symbol
5522 with a GOT entry. */
5523 long min_got_dynindx;
5524 /* The greatest dynamic symbol table index not corresponding to a
5525 symbol without a GOT entry. */
5526 long max_non_got_dynindx;
5529 /* If H needs a GOT entry, assign it the highest available dynamic
5530 index. Otherwise, assign it the lowest available dynamic
5534 mips_elf_sort_hash_table_f (h, data)
5535 struct mips_elf_link_hash_entry *h;
5538 struct mips_elf_hash_sort_data *hsd
5539 = (struct mips_elf_hash_sort_data *) data;
5541 /* Symbols without dynamic symbol table entries aren't interesting
5543 if (h->root.dynindx == -1)
5546 if (h->root.got.offset != 0)
5547 h->root.dynindx = hsd->max_non_got_dynindx++;
5550 h->root.dynindx = --hsd->min_got_dynindx;
5551 hsd->low = (struct elf_link_hash_entry *) h;
5557 /* Sort the dynamic symbol table so that symbols that need GOT entries
5558 appear towards the end. This reduces the amount of GOT space
5559 required. MAX_LOCAL is used to set the number of local symbols
5560 known to be in the dynamic symbol table. During
5561 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
5562 section symbols are added and the count is higher. */
5565 mips_elf_sort_hash_table (info, max_local)
5566 struct bfd_link_info *info;
5567 unsigned long max_local;
5569 struct mips_elf_hash_sort_data hsd;
5570 struct mips_got_info *g;
5573 dynobj = elf_hash_table (info)->dynobj;
5576 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
5577 hsd.max_non_got_dynindx = max_local;
5578 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
5579 elf_hash_table (info)),
5580 mips_elf_sort_hash_table_f,
5583 /* There shoud have been enough room in the symbol table to
5584 accomodate both the GOT and non-GOT symbols. */
5585 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
5587 /* Now we know which dynamic symbol has the lowest dynamic symbol
5588 table index in the GOT. */
5589 g = mips_elf_got_info (dynobj, NULL);
5590 g->global_gotsym = hsd.low;
5595 /* Create a local GOT entry for VALUE. Return the index of the entry,
5596 or -1 if it could not be created. */
5599 mips_elf_create_local_got_entry (abfd, g, sgot, value)
5601 struct mips_got_info *g;
5605 if (g->assigned_gotno >= g->local_gotno)
5607 /* We didn't allocate enough space in the GOT. */
5608 (*_bfd_error_handler)
5609 (_("not enough GOT space for local GOT entries"));
5610 bfd_set_error (bfd_error_bad_value);
5611 return (bfd_vma) -1;
5614 MIPS_ELF_PUT_WORD (abfd, value,
5616 + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno));
5617 return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
5620 /* Returns the GOT offset at which the indicated address can be found.
5621 If there is not yet a GOT entry for this value, create one. Returns
5622 -1 if no satisfactory GOT offset can be found. */
5625 mips_elf_local_got_index (abfd, info, value)
5627 struct bfd_link_info *info;
5631 struct mips_got_info *g;
5634 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
5636 /* Look to see if we already have an appropriate entry. */
5637 for (entry = (sgot->contents
5638 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
5639 entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
5640 entry += MIPS_ELF_GOT_SIZE (abfd))
5642 bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry);
5643 if (address == value)
5644 return entry - sgot->contents;
5647 return mips_elf_create_local_got_entry (abfd, g, sgot, value);
5650 /* Find a GOT entry that is within 32KB of the VALUE. These entries
5651 are supposed to be placed at small offsets in the GOT, i.e.,
5652 within 32KB of GP. Return the index into the GOT for this page,
5653 and store the offset from this entry to the desired address in
5654 OFFSETP, if it is non-NULL. */
5657 mips_elf_got_page (abfd, info, value, offsetp)
5659 struct bfd_link_info *info;
5664 struct mips_got_info *g;
5666 bfd_byte *last_entry;
5670 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
5672 /* Look to see if we aleady have an appropriate entry. */
5673 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
5674 for (entry = (sgot->contents
5675 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
5676 entry != last_entry;
5677 entry += MIPS_ELF_GOT_SIZE (abfd))
5679 address = MIPS_ELF_GET_WORD (abfd, entry);
5681 if (!mips_elf_overflow_p (value - address, 16))
5683 /* This entry will serve as the page pointer. We can add a
5684 16-bit number to it to get the actual address. */
5685 index = entry - sgot->contents;
5690 /* If we didn't have an appropriate entry, we create one now. */
5691 if (entry == last_entry)
5692 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
5696 address = MIPS_ELF_GET_WORD (abfd, entry);
5697 *offsetp = value - address;
5703 /* Find a GOT entry whose higher-order 16 bits are the same as those
5704 for value. Return the index into the GOT for this entry. */
5707 mips_elf_got16_entry (abfd, info, value, external)
5709 struct bfd_link_info *info;
5714 struct mips_got_info *g;
5716 bfd_byte *last_entry;
5722 /* Although the ABI says that it is "the high-order 16 bits" that we
5723 want, it is really the %high value. The complete value is
5724 calculated with a `addiu' of a LO16 relocation, just as with a
5726 value = mips_elf_high (value) << 16;
5729 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
5731 /* Look to see if we already have an appropriate entry. */
5732 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
5733 for (entry = (sgot->contents
5734 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
5735 entry != last_entry;
5736 entry += MIPS_ELF_GOT_SIZE (abfd))
5738 address = MIPS_ELF_GET_WORD (abfd, entry);
5739 if (address == value)
5741 /* This entry has the right high-order 16 bits, and the low-order
5742 16 bits are set to zero. */
5743 index = entry - sgot->contents;
5748 /* If we didn't have an appropriate entry, we create one now. */
5749 if (entry == last_entry)
5750 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
5755 /* Returns the first relocation of type r_type found, beginning with
5756 RELOCATION. RELEND is one-past-the-end of the relocation table. */
5758 static const Elf_Internal_Rela *
5759 mips_elf_next_relocation (r_type, relocation, relend)
5760 unsigned int r_type;
5761 const Elf_Internal_Rela *relocation;
5762 const Elf_Internal_Rela *relend;
5764 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
5765 immediately following. However, for the IRIX6 ABI, the next
5766 relocation may be a composed relocation consisting of several
5767 relocations for the same address. In that case, the R_MIPS_LO16
5768 relocation may occur as one of these. We permit a similar
5769 extension in general, as that is useful for GCC. */
5770 while (relocation < relend)
5772 if (ELF32_R_TYPE (relocation->r_info) == r_type)
5778 /* We didn't find it. */
5779 bfd_set_error (bfd_error_bad_value);
5783 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
5784 is the original relocation, which is now being transformed into a
5785 dynamic relocation. The ADDENDP is adjusted if necessary; the
5786 caller should store the result in place of the original addend. */
5789 mips_elf_create_dynamic_relocation (output_bfd, info, rel, h, sec,
5790 symbol, addendp, input_section)
5792 struct bfd_link_info *info;
5793 const Elf_Internal_Rela *rel;
5794 struct mips_elf_link_hash_entry *h;
5798 asection *input_section;
5800 Elf_Internal_Rel outrel;
5806 r_type = ELF32_R_TYPE (rel->r_info);
5807 dynobj = elf_hash_table (info)->dynobj;
5809 = bfd_get_section_by_name (dynobj,
5810 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd));
5811 BFD_ASSERT (sreloc != NULL);
5812 BFD_ASSERT (sreloc->contents != NULL);
5816 /* We begin by assuming that the offset for the dynamic relocation
5817 is the same as for the original relocation. We'll adjust this
5818 later to reflect the correct output offsets. */
5819 if (elf_section_data (input_section)->stab_info == NULL)
5820 outrel.r_offset = rel->r_offset;
5823 /* Except that in a stab section things are more complex.
5824 Because we compress stab information, the offset given in the
5825 relocation may not be the one we want; we must let the stabs
5826 machinery tell us the offset. */
5828 = (_bfd_stab_section_offset
5829 (output_bfd, &elf_hash_table (info)->stab_info,
5831 &elf_section_data (input_section)->stab_info,
5833 /* If we didn't need the relocation at all, this value will be
5835 if (outrel.r_offset == (bfd_vma) -1)
5839 /* If we've decided to skip this relocation, just output an empty
5840 record. Note that R_MIPS_NONE == 0, so that this call to memset
5841 is a way of setting R_TYPE to R_MIPS_NONE. */
5843 memset (&outrel, 0, sizeof (outrel));
5847 bfd_vma section_offset;
5849 /* We must now calculate the dynamic symbol table index to use
5850 in the relocation. */
5852 && (! info->symbolic || (h->root.elf_link_hash_flags
5853 & ELF_LINK_HASH_DEF_REGULAR) == 0))
5855 indx = h->root.dynindx;
5856 /* h->root.dynindx may be -1 if this symbol was marked to
5863 if (sec != NULL && bfd_is_abs_section (sec))
5865 else if (sec == NULL || sec->owner == NULL)
5867 bfd_set_error (bfd_error_bad_value);
5872 indx = elf_section_data (sec->output_section)->dynindx;
5877 /* Figure out how far the target of the relocation is from
5878 the beginning of its section. */
5879 section_offset = symbol - sec->output_section->vma;
5880 /* The relocation we're building is section-relative.
5881 Therefore, the original addend must be adjusted by the
5883 *addendp += section_offset;
5884 /* Now, the relocation is just against the section. */
5885 symbol = sec->output_section->vma;
5888 /* If the relocation was previously an absolute relocation and
5889 this symbol will not be referred to by the relocation, we must
5890 adjust it by the value we give it in the dynamic symbol table.
5891 Otherwise leave the job up to the dynamic linker. */
5892 if (!indx && r_type != R_MIPS_REL32)
5895 /* The relocation is always an REL32 relocation because we don't
5896 know where the shared library will wind up at load-time. */
5897 outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32);
5899 /* Adjust the output offset of the relocation to reference the
5900 correct location in the output file. */
5901 outrel.r_offset += (input_section->output_section->vma
5902 + input_section->output_offset);
5905 /* Put the relocation back out. We have to use the special
5906 relocation outputter in the 64-bit case since the 64-bit
5907 relocation format is non-standard. */
5908 if (ABI_64_P (output_bfd))
5910 (*get_elf_backend_data (output_bfd)->s->swap_reloc_out)
5911 (output_bfd, &outrel,
5913 + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel)));
5916 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
5917 (((Elf32_External_Rel *)
5919 + sreloc->reloc_count));
5921 /* Record the index of the first relocation referencing H. This
5922 information is later emitted in the .msym section. */
5924 && (h->min_dyn_reloc_index == 0
5925 || sreloc->reloc_count < h->min_dyn_reloc_index))
5926 h->min_dyn_reloc_index = sreloc->reloc_count;
5928 /* We've now added another relocation. */
5929 ++sreloc->reloc_count;
5931 /* Make sure the output section is writable. The dynamic linker
5932 will be writing to it. */
5933 elf_section_data (input_section->output_section)->this_hdr.sh_flags
5936 /* On IRIX5, make an entry of compact relocation info. */
5937 if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5)
5939 asection *scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
5944 Elf32_crinfo cptrel;
5946 mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
5947 cptrel.vaddr = (rel->r_offset
5948 + input_section->output_section->vma
5949 + input_section->output_offset);
5950 if (r_type == R_MIPS_REL32)
5951 mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
5953 mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
5954 mips_elf_set_cr_dist2to (cptrel, 0);
5955 cptrel.konst = *addendp;
5957 cr = (scpt->contents
5958 + sizeof (Elf32_External_compact_rel));
5959 bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
5960 ((Elf32_External_crinfo *) cr
5961 + scpt->reloc_count));
5962 ++scpt->reloc_count;
5969 /* Calculate the value produced by the RELOCATION (which comes from
5970 the INPUT_BFD). The ADDEND is the addend to use for this
5971 RELOCATION; RELOCATION->R_ADDEND is ignored.
5973 The result of the relocation calculation is stored in VALUEP.
5974 REQUIRE_JALXP indicates whether or not the opcode used with this
5975 relocation must be JALX.
5977 This function returns bfd_reloc_continue if the caller need take no
5978 further action regarding this relocation, bfd_reloc_notsupported if
5979 something goes dramatically wrong, bfd_reloc_overflow if an
5980 overflow occurs, and bfd_reloc_ok to indicate success. */
5982 static bfd_reloc_status_type
5983 mips_elf_calculate_relocation (abfd,
5997 asection *input_section;
5998 struct bfd_link_info *info;
5999 const Elf_Internal_Rela *relocation;
6001 reloc_howto_type *howto;
6002 Elf_Internal_Sym *local_syms;
6003 asection **local_sections;
6006 boolean *require_jalxp;
6008 /* The eventual value we will return. */
6010 /* The address of the symbol against which the relocation is
6013 /* The final GP value to be used for the relocatable, executable, or
6014 shared object file being produced. */
6015 bfd_vma gp = (bfd_vma) - 1;
6016 /* The place (section offset or address) of the storage unit being
6019 /* The value of GP used to create the relocatable object. */
6020 bfd_vma gp0 = (bfd_vma) - 1;
6021 /* The offset into the global offset table at which the address of
6022 the relocation entry symbol, adjusted by the addend, resides
6023 during execution. */
6024 bfd_vma g = (bfd_vma) - 1;
6025 /* The section in which the symbol referenced by the relocation is
6027 asection *sec = NULL;
6028 struct mips_elf_link_hash_entry *h = NULL;
6029 /* True if the symbol referred to by this relocation is a local
6032 /* True if the symbol referred to by this relocation is "_gp_disp". */
6033 boolean gp_disp_p = false;
6034 Elf_Internal_Shdr *symtab_hdr;
6036 unsigned long r_symndx;
6038 /* True if overflow occurred during the calculation of the
6039 relocation value. */
6040 boolean overflowed_p;
6041 /* True if this relocation refers to a MIPS16 function. */
6042 boolean target_is_16_bit_code_p = false;
6044 /* Parse the relocation. */
6045 r_symndx = ELF32_R_SYM (relocation->r_info);
6046 r_type = ELF32_R_TYPE (relocation->r_info);
6047 p = (input_section->output_section->vma
6048 + input_section->output_offset
6049 + relocation->r_offset);
6051 /* Assume that there will be no overflow. */
6052 overflowed_p = false;
6054 /* Figure out whether or not the symbol is local, and get the offset
6055 used in the array of hash table entries. */
6056 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6057 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6058 local_sections, false);
6059 if (! elf_bad_symtab (input_bfd))
6060 extsymoff = symtab_hdr->sh_info;
6063 /* The symbol table does not follow the rule that local symbols
6064 must come before globals. */
6068 /* Figure out the value of the symbol. */
6071 Elf_Internal_Sym *sym;
6073 sym = local_syms + r_symndx;
6074 sec = local_sections[r_symndx];
6076 symbol = sec->output_section->vma + sec->output_offset;
6077 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
6078 symbol += sym->st_value;
6080 /* MIPS16 text labels should be treated as odd. */
6081 if (sym->st_other == STO_MIPS16)
6084 /* Record the name of this symbol, for our caller. */
6085 *namep = bfd_elf_string_from_elf_section (input_bfd,
6086 symtab_hdr->sh_link,
6089 *namep = bfd_section_name (input_bfd, sec);
6091 target_is_16_bit_code_p = (sym->st_other == STO_MIPS16);
6095 /* For global symbols we look up the symbol in the hash-table. */
6096 h = ((struct mips_elf_link_hash_entry *)
6097 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
6098 /* Find the real hash-table entry for this symbol. */
6099 while (h->root.root.type == bfd_link_hash_indirect
6100 || h->root.root.type == bfd_link_hash_warning)
6101 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
6103 /* Record the name of this symbol, for our caller. */
6104 *namep = h->root.root.root.string;
6106 /* See if this is the special _gp_disp symbol. Note that such a
6107 symbol must always be a global symbol. */
6108 if (strcmp (h->root.root.root.string, "_gp_disp") == 0)
6110 /* Relocations against _gp_disp are permitted only with
6111 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6112 if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16)
6113 return bfd_reloc_notsupported;
6117 /* If this symbol is defined, calculate its address. Note that
6118 _gp_disp is a magic symbol, always implicitly defined by the
6119 linker, so it's inappropriate to check to see whether or not
6121 else if ((h->root.root.type == bfd_link_hash_defined
6122 || h->root.root.type == bfd_link_hash_defweak)
6123 && h->root.root.u.def.section)
6125 sec = h->root.root.u.def.section;
6126 if (sec->output_section)
6127 symbol = (h->root.root.u.def.value
6128 + sec->output_section->vma
6129 + sec->output_offset);
6131 symbol = h->root.root.u.def.value;
6133 else if (h->root.root.type == bfd_link_hash_undefweak)
6134 /* We allow relocations against undefined weak symbols, giving
6135 it the value zero, so that you can undefined weak functions
6136 and check to see if they exist by looking at their
6139 else if (info->shared && !info->symbolic && !info->no_undefined
6140 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
6142 else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0 ||
6143 strcmp (h->root.root.root.string, "_DYNAMIC_LINKING") == 0)
6145 /* If this is a dynamic link, we should have created a
6146 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
6147 in in mips_elf_create_dynamic_sections.
6148 Otherwise, we should define the symbol with a value of 0.
6149 FIXME: It should probably get into the symbol table
6151 BFD_ASSERT (! info->shared);
6152 BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
6157 if (! ((*info->callbacks->undefined_symbol)
6158 (info, h->root.root.root.string, input_bfd,
6159 input_section, relocation->r_offset,
6160 (!info->shared || info->no_undefined
6161 || ELF_ST_VISIBILITY (h->root.other)))))
6162 return bfd_reloc_undefined;
6166 target_is_16_bit_code_p = (h->root.other == STO_MIPS16);
6169 /* If this is a 32-bit call to a 16-bit function with a stub, we
6170 need to redirect the call to the stub, unless we're already *in*
6172 if (r_type != R_MIPS16_26 && !info->relocateable
6173 && ((h != NULL && h->fn_stub != NULL)
6174 || (local_p && elf_tdata (input_bfd)->local_stubs != NULL
6175 && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
6176 && !mips_elf_stub_section_p (input_bfd, input_section))
6178 /* This is a 32-bit call to a 16-bit function. We should
6179 have already noticed that we were going to need the
6182 sec = elf_tdata (input_bfd)->local_stubs[r_symndx];
6185 BFD_ASSERT (h->need_fn_stub);
6189 symbol = sec->output_section->vma + sec->output_offset;
6191 /* If this is a 16-bit call to a 32-bit function with a stub, we
6192 need to redirect the call to the stub. */
6193 else if (r_type == R_MIPS16_26 && !info->relocateable
6195 && (h->call_stub != NULL || h->call_fp_stub != NULL)
6196 && !target_is_16_bit_code_p)
6198 /* If both call_stub and call_fp_stub are defined, we can figure
6199 out which one to use by seeing which one appears in the input
6201 if (h->call_stub != NULL && h->call_fp_stub != NULL)
6206 for (o = input_bfd->sections; o != NULL; o = o->next)
6208 if (strncmp (bfd_get_section_name (input_bfd, o),
6209 CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
6211 sec = h->call_fp_stub;
6218 else if (h->call_stub != NULL)
6221 sec = h->call_fp_stub;
6223 BFD_ASSERT (sec->_raw_size > 0);
6224 symbol = sec->output_section->vma + sec->output_offset;
6227 /* Calls from 16-bit code to 32-bit code and vice versa require the
6228 special jalx instruction. */
6229 *require_jalxp = (!info->relocateable
6230 && ((r_type == R_MIPS16_26) != target_is_16_bit_code_p));
6232 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6233 local_sections, true);
6235 /* If we haven't already determined the GOT offset, or the GP value,
6236 and we're going to need it, get it now. */
6241 case R_MIPS_GOT_DISP:
6242 case R_MIPS_GOT_HI16:
6243 case R_MIPS_CALL_HI16:
6244 case R_MIPS_GOT_LO16:
6245 case R_MIPS_CALL_LO16:
6246 /* Find the index into the GOT where this value is located. */
6249 BFD_ASSERT (addend == 0);
6250 g = mips_elf_global_got_index
6251 (elf_hash_table (info)->dynobj,
6252 (struct elf_link_hash_entry *) h);
6253 if (! elf_hash_table(info)->dynamic_sections_created
6255 && (info->symbolic || h->root.dynindx == -1)
6256 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
6258 /* This is a static link or a -Bsymbolic link. The
6259 symbol is defined locally, or was forced to be local.
6260 We must initialize this entry in the GOT. */
6261 asection *sgot = mips_elf_got_section(elf_hash_table
6263 MIPS_ELF_PUT_WORD (elf_hash_table (info)->dynobj,
6264 symbol + addend, sgot->contents + g);
6267 else if (r_type == R_MIPS_GOT16 || r_type == R_MIPS_CALL16)
6268 /* There's no need to create a local GOT entry here; the
6269 calculation for a local GOT16 entry does not involve G. */
6273 g = mips_elf_local_got_index (abfd, info, symbol + addend);
6274 if (g == (bfd_vma) -1)
6278 /* Convert GOT indices to actual offsets. */
6279 g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6285 case R_MIPS_GPREL16:
6286 case R_MIPS_GPREL32:
6287 case R_MIPS_LITERAL:
6288 gp0 = _bfd_get_gp_value (input_bfd);
6289 gp = _bfd_get_gp_value (abfd);
6296 /* Figure out what kind of relocation is being performed. */
6300 return bfd_reloc_continue;
6303 value = symbol + mips_elf_sign_extend (addend, 16);
6304 overflowed_p = mips_elf_overflow_p (value, 16);
6311 || (elf_hash_table (info)->dynamic_sections_created
6313 && ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)
6315 && (input_section->flags & SEC_ALLOC) != 0)
6317 /* If we're creating a shared library, or this relocation is
6318 against a symbol in a shared library, then we can't know
6319 where the symbol will end up. So, we create a relocation
6320 record in the output, and leave the job up to the dynamic
6323 if (!mips_elf_create_dynamic_relocation (abfd,
6335 if (r_type != R_MIPS_REL32)
6336 value = symbol + addend;
6340 value &= howto->dst_mask;
6345 case R_MIPS_GNU_REL_LO16:
6346 value = symbol + addend - p;
6347 value &= howto->dst_mask;
6350 case R_MIPS_GNU_REL16_S2:
6351 value = symbol + mips_elf_sign_extend (addend << 2, 18) - p;
6352 overflowed_p = mips_elf_overflow_p (value, 18);
6353 value = (value >> 2) & howto->dst_mask;
6356 case R_MIPS_GNU_REL_HI16:
6357 value = mips_elf_high (addend + symbol - p);
6358 value &= howto->dst_mask;
6362 /* The calculation for R_MIPS16_26 is just the same as for an
6363 R_MIPS_26. It's only the storage of the relocated field into
6364 the output file that's different. That's handled in
6365 mips_elf_perform_relocation. So, we just fall through to the
6366 R_MIPS_26 case here. */
6369 value = (((addend << 2) | ((p + 4) & 0xf0000000)) + symbol) >> 2;
6371 value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2;
6372 value &= howto->dst_mask;
6378 value = mips_elf_high (addend + symbol);
6379 value &= howto->dst_mask;
6383 value = mips_elf_high (addend + gp - p);
6384 overflowed_p = mips_elf_overflow_p (value, 16);
6390 value = (symbol + addend) & howto->dst_mask;
6393 value = addend + gp - p + 4;
6394 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6395 for overflow. But, on, say, Irix 5, relocations against
6396 _gp_disp are normally generated from the .cpload
6397 pseudo-op. It generates code that normally looks like
6400 lui $gp,%hi(_gp_disp)
6401 addiu $gp,$gp,%lo(_gp_disp)
6404 Here $t9 holds the address of the function being called,
6405 as required by the MIPS ELF ABI. The R_MIPS_LO16
6406 relocation can easily overflow in this situation, but the
6407 R_MIPS_HI16 relocation will handle the overflow.
6408 Therefore, we consider this a bug in the MIPS ABI, and do
6409 not check for overflow here. */
6413 case R_MIPS_LITERAL:
6414 /* Because we don't merge literal sections, we can handle this
6415 just like R_MIPS_GPREL16. In the long run, we should merge
6416 shared literals, and then we will need to additional work
6421 case R_MIPS16_GPREL:
6422 /* The R_MIPS16_GPREL performs the same calculation as
6423 R_MIPS_GPREL16, but stores the relocated bits in a different
6424 order. We don't need to do anything special here; the
6425 differences are handled in mips_elf_perform_relocation. */
6426 case R_MIPS_GPREL16:
6428 value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp;
6430 value = mips_elf_sign_extend (addend, 16) + symbol - gp;
6431 overflowed_p = mips_elf_overflow_p (value, 16);
6440 /* The special case is when the symbol is forced to be local. We
6441 need the full address in the GOT since no R_MIPS_LO16 relocation
6443 forced = ! mips_elf_local_relocation_p (input_bfd, relocation,
6444 local_sections, false);
6445 value = mips_elf_got16_entry (abfd, info, symbol + addend, forced);
6446 if (value == (bfd_vma) -1)
6449 = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6452 overflowed_p = mips_elf_overflow_p (value, 16);
6458 case R_MIPS_GOT_DISP:
6460 overflowed_p = mips_elf_overflow_p (value, 16);
6463 case R_MIPS_GPREL32:
6464 value = (addend + symbol + gp0 - gp) & howto->dst_mask;
6468 value = mips_elf_sign_extend (addend, 16) + symbol - p;
6469 value = (bfd_vma) ((bfd_signed_vma) value / 4);
6470 overflowed_p = mips_elf_overflow_p (value, 16);
6473 case R_MIPS_GOT_HI16:
6474 case R_MIPS_CALL_HI16:
6475 /* We're allowed to handle these two relocations identically.
6476 The dynamic linker is allowed to handle the CALL relocations
6477 differently by creating a lazy evaluation stub. */
6479 value = mips_elf_high (value);
6480 value &= howto->dst_mask;
6483 case R_MIPS_GOT_LO16:
6484 case R_MIPS_CALL_LO16:
6485 value = g & howto->dst_mask;
6488 case R_MIPS_GOT_PAGE:
6489 value = mips_elf_got_page (abfd, info, symbol + addend, NULL);
6490 if (value == (bfd_vma) -1)
6492 value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6495 overflowed_p = mips_elf_overflow_p (value, 16);
6498 case R_MIPS_GOT_OFST:
6499 mips_elf_got_page (abfd, info, symbol + addend, &value);
6500 overflowed_p = mips_elf_overflow_p (value, 16);
6504 value = symbol - addend;
6505 value &= howto->dst_mask;
6509 value = mips_elf_higher (addend + symbol);
6510 value &= howto->dst_mask;
6513 case R_MIPS_HIGHEST:
6514 value = mips_elf_highest (addend + symbol);
6515 value &= howto->dst_mask;
6518 case R_MIPS_SCN_DISP:
6519 value = symbol + addend - sec->output_offset;
6520 value &= howto->dst_mask;
6525 /* Both of these may be ignored. R_MIPS_JALR is an optimization
6526 hint; we could improve performance by honoring that hint. */
6527 return bfd_reloc_continue;
6529 case R_MIPS_GNU_VTINHERIT:
6530 case R_MIPS_GNU_VTENTRY:
6531 /* We don't do anything with these at present. */
6532 return bfd_reloc_continue;
6535 /* An unrecognized relocation type. */
6536 return bfd_reloc_notsupported;
6539 /* Store the VALUE for our caller. */
6541 return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
6544 /* Obtain the field relocated by RELOCATION. */
6547 mips_elf_obtain_contents (howto, relocation, input_bfd, contents)
6548 reloc_howto_type *howto;
6549 const Elf_Internal_Rela *relocation;
6554 bfd_byte *location = contents + relocation->r_offset;
6556 /* Obtain the bytes. */
6557 x = bfd_get (8 * bfd_get_reloc_size (howto), input_bfd, location);
6559 if ((ELF32_R_TYPE (relocation->r_info) == R_MIPS16_26
6560 || ELF32_R_TYPE (relocation->r_info) == R_MIPS16_GPREL)
6561 && bfd_little_endian (input_bfd))
6562 /* The two 16-bit words will be reversed on a little-endian
6563 system. See mips_elf_perform_relocation for more details. */
6564 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
6569 /* It has been determined that the result of the RELOCATION is the
6570 VALUE. Use HOWTO to place VALUE into the output file at the
6571 appropriate position. The SECTION is the section to which the
6572 relocation applies. If REQUIRE_JALX is true, then the opcode used
6573 for the relocation must be either JAL or JALX, and it is
6574 unconditionally converted to JALX.
6576 Returns false if anything goes wrong. */
6579 mips_elf_perform_relocation (info, howto, relocation, value,
6580 input_bfd, input_section,
6581 contents, require_jalx)
6582 struct bfd_link_info *info;
6583 reloc_howto_type *howto;
6584 const Elf_Internal_Rela *relocation;
6587 asection *input_section;
6589 boolean require_jalx;
6593 int r_type = ELF32_R_TYPE (relocation->r_info);
6595 /* Figure out where the relocation is occurring. */
6596 location = contents + relocation->r_offset;
6598 /* Obtain the current value. */
6599 x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents);
6601 /* Clear the field we are setting. */
6602 x &= ~howto->dst_mask;
6604 /* If this is the R_MIPS16_26 relocation, we must store the
6605 value in a funny way. */
6606 if (r_type == R_MIPS16_26)
6608 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
6609 Most mips16 instructions are 16 bits, but these instructions
6612 The format of these instructions is:
6614 +--------------+--------------------------------+
6615 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
6616 +--------------+--------------------------------+
6618 +-----------------------------------------------+
6620 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
6621 Note that the immediate value in the first word is swapped.
6623 When producing a relocateable object file, R_MIPS16_26 is
6624 handled mostly like R_MIPS_26. In particular, the addend is
6625 stored as a straight 26-bit value in a 32-bit instruction.
6626 (gas makes life simpler for itself by never adjusting a
6627 R_MIPS16_26 reloc to be against a section, so the addend is
6628 always zero). However, the 32 bit instruction is stored as 2
6629 16-bit values, rather than a single 32-bit value. In a
6630 big-endian file, the result is the same; in a little-endian
6631 file, the two 16-bit halves of the 32 bit value are swapped.
6632 This is so that a disassembler can recognize the jal
6635 When doing a final link, R_MIPS16_26 is treated as a 32 bit
6636 instruction stored as two 16-bit values. The addend A is the
6637 contents of the targ26 field. The calculation is the same as
6638 R_MIPS_26. When storing the calculated value, reorder the
6639 immediate value as shown above, and don't forget to store the
6640 value as two 16-bit values.
6642 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
6646 +--------+----------------------+
6650 +--------+----------------------+
6653 +----------+------+-------------+
6657 +----------+--------------------+
6658 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
6659 ((sub1 << 16) | sub2)).
6661 When producing a relocateable object file, the calculation is
6662 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6663 When producing a fully linked file, the calculation is
6664 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
6665 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
6667 if (!info->relocateable)
6668 /* Shuffle the bits according to the formula above. */
6669 value = (((value & 0x1f0000) << 5)
6670 | ((value & 0x3e00000) >> 5)
6671 | (value & 0xffff));
6673 else if (r_type == R_MIPS16_GPREL)
6675 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
6676 mode. A typical instruction will have a format like this:
6678 +--------------+--------------------------------+
6679 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
6680 +--------------+--------------------------------+
6681 ! Major ! rx ! ry ! Imm 4:0 !
6682 +--------------+--------------------------------+
6684 EXTEND is the five bit value 11110. Major is the instruction
6687 This is handled exactly like R_MIPS_GPREL16, except that the
6688 addend is retrieved and stored as shown in this diagram; that
6689 is, the Imm fields above replace the V-rel16 field.
6691 All we need to do here is shuffle the bits appropriately. As
6692 above, the two 16-bit halves must be swapped on a
6693 little-endian system. */
6694 value = (((value & 0x7e0) << 16)
6695 | ((value & 0xf800) << 5)
6699 /* Set the field. */
6700 x |= (value & howto->dst_mask);
6702 /* If required, turn JAL into JALX. */
6706 bfd_vma opcode = x >> 26;
6707 bfd_vma jalx_opcode;
6709 /* Check to see if the opcode is already JAL or JALX. */
6710 if (r_type == R_MIPS16_26)
6712 ok = ((opcode == 0x6) || (opcode == 0x7));
6717 ok = ((opcode == 0x3) || (opcode == 0x1d));
6721 /* If the opcode is not JAL or JALX, there's a problem. */
6724 (*_bfd_error_handler)
6725 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
6726 bfd_get_filename (input_bfd),
6727 input_section->name,
6728 (unsigned long) relocation->r_offset);
6729 bfd_set_error (bfd_error_bad_value);
6733 /* Make this the JALX opcode. */
6734 x = (x & ~(0x3f << 26)) | (jalx_opcode << 26);
6737 /* Swap the high- and low-order 16 bits on little-endian systems
6738 when doing a MIPS16 relocation. */
6739 if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26)
6740 && bfd_little_endian (input_bfd))
6741 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
6743 /* Put the value into the output. */
6744 bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
6748 /* Returns true if SECTION is a MIPS16 stub section. */
6751 mips_elf_stub_section_p (abfd, section)
6752 bfd *abfd ATTRIBUTE_UNUSED;
6755 const char *name = bfd_get_section_name (abfd, section);
6757 return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0
6758 || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
6759 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0);
6762 /* Relocate a MIPS ELF section. */
6765 _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
6766 contents, relocs, local_syms, local_sections)
6768 struct bfd_link_info *info;
6770 asection *input_section;
6772 Elf_Internal_Rela *relocs;
6773 Elf_Internal_Sym *local_syms;
6774 asection **local_sections;
6776 Elf_Internal_Rela *rel;
6777 const Elf_Internal_Rela *relend;
6779 boolean use_saved_addend_p = false;
6780 struct elf_backend_data *bed;
6782 bed = get_elf_backend_data (output_bfd);
6783 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
6784 for (rel = relocs; rel < relend; ++rel)
6788 reloc_howto_type *howto;
6789 boolean require_jalx;
6790 /* True if the relocation is a RELA relocation, rather than a
6792 boolean rela_relocation_p = true;
6793 int r_type = ELF32_R_TYPE (rel->r_info);
6794 const char * msg = (const char *) NULL;
6796 /* Find the relocation howto for this relocation. */
6797 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
6799 /* Some 32-bit code uses R_MIPS_64. In particular, people use
6800 64-bit code, but make sure all their addresses are in the
6801 lowermost or uppermost 32-bit section of the 64-bit address
6802 space. Thus, when they use an R_MIPS_64 they mean what is
6803 usually meant by R_MIPS_32, with the exception that the
6804 stored value is sign-extended to 64 bits. */
6805 howto = elf_mips_howto_table + R_MIPS_32;
6807 /* On big-endian systems, we need to lie about the position
6809 if (bfd_big_endian (input_bfd))
6813 howto = mips_rtype_to_howto (r_type);
6815 if (!use_saved_addend_p)
6817 Elf_Internal_Shdr *rel_hdr;
6819 /* If these relocations were originally of the REL variety,
6820 we must pull the addend out of the field that will be
6821 relocated. Otherwise, we simply use the contents of the
6822 RELA relocation. To determine which flavor or relocation
6823 this is, we depend on the fact that the INPUT_SECTION's
6824 REL_HDR is read before its REL_HDR2. */
6825 rel_hdr = &elf_section_data (input_section)->rel_hdr;
6826 if ((size_t) (rel - relocs)
6827 >= (NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel))
6828 rel_hdr = elf_section_data (input_section)->rel_hdr2;
6829 if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd))
6831 /* Note that this is a REL relocation. */
6832 rela_relocation_p = false;
6834 /* Get the addend, which is stored in the input file. */
6835 addend = mips_elf_obtain_contents (howto,
6839 addend &= howto->src_mask;
6841 /* For some kinds of relocations, the ADDEND is a
6842 combination of the addend stored in two different
6844 if (r_type == R_MIPS_HI16
6845 || r_type == R_MIPS_GNU_REL_HI16
6846 || (r_type == R_MIPS_GOT16
6847 && mips_elf_local_relocation_p (input_bfd, rel,
6848 local_sections, false)))
6851 const Elf_Internal_Rela *lo16_relocation;
6852 reloc_howto_type *lo16_howto;
6855 /* The combined value is the sum of the HI16 addend,
6856 left-shifted by sixteen bits, and the LO16
6857 addend, sign extended. (Usually, the code does
6858 a `lui' of the HI16 value, and then an `addiu' of
6861 Scan ahead to find a matching LO16 relocation. */
6862 if (r_type == R_MIPS_GNU_REL_HI16)
6863 lo = R_MIPS_GNU_REL_LO16;
6867 = mips_elf_next_relocation (lo, rel, relend);
6868 if (lo16_relocation == NULL)
6871 /* Obtain the addend kept there. */
6872 lo16_howto = mips_rtype_to_howto (lo);
6873 l = mips_elf_obtain_contents (lo16_howto,
6875 input_bfd, contents);
6876 l &= lo16_howto->src_mask;
6877 l = mips_elf_sign_extend (l, 16);
6881 /* Compute the combined addend. */
6884 else if (r_type == R_MIPS16_GPREL)
6886 /* The addend is scrambled in the object file. See
6887 mips_elf_perform_relocation for details on the
6889 addend = (((addend & 0x1f0000) >> 5)
6890 | ((addend & 0x7e00000) >> 16)
6895 addend = rel->r_addend;
6898 if (info->relocateable)
6900 Elf_Internal_Sym *sym;
6901 unsigned long r_symndx;
6903 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)
6904 && bfd_big_endian (input_bfd))
6907 /* Since we're just relocating, all we need to do is copy
6908 the relocations back out to the object file, unless
6909 they're against a section symbol, in which case we need
6910 to adjust by the section offset, or unless they're GP
6911 relative in which case we need to adjust by the amount
6912 that we're adjusting GP in this relocateable object. */
6914 if (!mips_elf_local_relocation_p (input_bfd, rel, local_sections,
6916 /* There's nothing to do for non-local relocations. */
6919 if (r_type == R_MIPS16_GPREL
6920 || r_type == R_MIPS_GPREL16
6921 || r_type == R_MIPS_GPREL32
6922 || r_type == R_MIPS_LITERAL)
6923 addend -= (_bfd_get_gp_value (output_bfd)
6924 - _bfd_get_gp_value (input_bfd));
6925 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
6926 || r_type == R_MIPS_GNU_REL16_S2)
6927 /* The addend is stored without its two least
6928 significant bits (which are always zero.) In a
6929 non-relocateable link, calculate_relocation will do
6930 this shift; here, we must do it ourselves. */
6933 r_symndx = ELF32_R_SYM (rel->r_info);
6934 sym = local_syms + r_symndx;
6935 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
6936 /* Adjust the addend appropriately. */
6937 addend += local_sections[r_symndx]->output_offset;
6939 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
6940 then we only want to write out the high-order 16 bits.
6941 The subsequent R_MIPS_LO16 will handle the low-order bits. */
6942 if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16
6943 || r_type == R_MIPS_GNU_REL_HI16)
6944 addend = mips_elf_high (addend);
6945 /* If the relocation is for an R_MIPS_26 relocation, then
6946 the two low-order bits are not stored in the object file;
6947 they are implicitly zero. */
6948 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
6949 || r_type == R_MIPS_GNU_REL16_S2)
6952 if (rela_relocation_p)
6953 /* If this is a RELA relocation, just update the addend.
6954 We have to cast away constness for REL. */
6955 rel->r_addend = addend;
6958 /* Otherwise, we have to write the value back out. Note
6959 that we use the source mask, rather than the
6960 destination mask because the place to which we are
6961 writing will be source of the addend in the final
6963 addend &= howto->src_mask;
6965 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
6966 /* See the comment above about using R_MIPS_64 in the 32-bit
6967 ABI. Here, we need to update the addend. It would be
6968 possible to get away with just using the R_MIPS_32 reloc
6969 but for endianness. */
6975 if (addend & ((bfd_vma) 1 << 31))
6976 sign_bits = ((bfd_vma) 1 << 32) - 1;
6980 /* If we don't know that we have a 64-bit type,
6981 do two separate stores. */
6982 if (bfd_big_endian (input_bfd))
6984 /* Store the sign-bits (which are most significant)
6986 low_bits = sign_bits;
6992 high_bits = sign_bits;
6994 bfd_put_32 (input_bfd, low_bits,
6995 contents + rel->r_offset);
6996 bfd_put_32 (input_bfd, high_bits,
6997 contents + rel->r_offset + 4);
7001 if (!mips_elf_perform_relocation (info, howto, rel, addend,
7002 input_bfd, input_section,
7007 /* Go on to the next relocation. */
7011 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7012 relocations for the same offset. In that case we are
7013 supposed to treat the output of each relocation as the addend
7015 if (rel + 1 < relend
7016 && rel->r_offset == rel[1].r_offset
7017 && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
7018 use_saved_addend_p = true;
7020 use_saved_addend_p = false;
7022 /* Figure out what value we are supposed to relocate. */
7023 switch (mips_elf_calculate_relocation (output_bfd,
7036 case bfd_reloc_continue:
7037 /* There's nothing to do. */
7040 case bfd_reloc_undefined:
7041 /* mips_elf_calculate_relocation already called the
7042 undefined_symbol callback. There's no real point in
7043 trying to perform the relocation at this point, so we
7044 just skip ahead to the next relocation. */
7047 case bfd_reloc_notsupported:
7048 msg = _("internal error: unsupported relocation error");
7049 info->callbacks->warning
7050 (info, msg, name, input_bfd, input_section, rel->r_offset);
7053 case bfd_reloc_overflow:
7054 if (use_saved_addend_p)
7055 /* Ignore overflow until we reach the last relocation for
7056 a given location. */
7060 BFD_ASSERT (name != NULL);
7061 if (! ((*info->callbacks->reloc_overflow)
7062 (info, name, howto->name, (bfd_vma) 0,
7063 input_bfd, input_section, rel->r_offset)))
7076 /* If we've got another relocation for the address, keep going
7077 until we reach the last one. */
7078 if (use_saved_addend_p)
7084 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7085 /* See the comment above about using R_MIPS_64 in the 32-bit
7086 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7087 that calculated the right value. Now, however, we
7088 sign-extend the 32-bit result to 64-bits, and store it as a
7089 64-bit value. We are especially generous here in that we
7090 go to extreme lengths to support this usage on systems with
7091 only a 32-bit VMA. */
7097 if (value & ((bfd_vma) 1 << 31))
7098 sign_bits = ((bfd_vma) 1 << 32) - 1;
7102 /* If we don't know that we have a 64-bit type,
7103 do two separate stores. */
7104 if (bfd_big_endian (input_bfd))
7106 /* Undo what we did above. */
7108 /* Store the sign-bits (which are most significant)
7110 low_bits = sign_bits;
7116 high_bits = sign_bits;
7118 bfd_put_32 (input_bfd, low_bits,
7119 contents + rel->r_offset);
7120 bfd_put_32 (input_bfd, high_bits,
7121 contents + rel->r_offset + 4);
7125 /* Actually perform the relocation. */
7126 if (!mips_elf_perform_relocation (info, howto, rel, value, input_bfd,
7127 input_section, contents,
7135 /* This hook function is called before the linker writes out a global
7136 symbol. We mark symbols as small common if appropriate. This is
7137 also where we undo the increment of the value for a mips16 symbol. */
7140 _bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
7141 bfd *abfd ATTRIBUTE_UNUSED;
7142 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7143 const char *name ATTRIBUTE_UNUSED;
7144 Elf_Internal_Sym *sym;
7145 asection *input_sec;
7147 /* If we see a common symbol, which implies a relocatable link, then
7148 if a symbol was small common in an input file, mark it as small
7149 common in the output file. */
7150 if (sym->st_shndx == SHN_COMMON
7151 && strcmp (input_sec->name, ".scommon") == 0)
7152 sym->st_shndx = SHN_MIPS_SCOMMON;
7154 if (sym->st_other == STO_MIPS16
7155 && (sym->st_value & 1) != 0)
7161 /* Functions for the dynamic linker. */
7163 /* The name of the dynamic interpreter. This is put in the .interp
7166 #define ELF_DYNAMIC_INTERPRETER(abfd) \
7167 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7168 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7169 : "/usr/lib/libc.so.1")
7171 /* Create dynamic sections when linking against a dynamic object. */
7174 _bfd_mips_elf_create_dynamic_sections (abfd, info)
7176 struct bfd_link_info *info;
7178 struct elf_link_hash_entry *h;
7180 register asection *s;
7181 const char * const *namep;
7183 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7184 | SEC_LINKER_CREATED | SEC_READONLY);
7186 /* Mips ABI requests the .dynamic section to be read only. */
7187 s = bfd_get_section_by_name (abfd, ".dynamic");
7190 if (! bfd_set_section_flags (abfd, s, flags))
7194 /* We need to create .got section. */
7195 if (! mips_elf_create_got_section (abfd, info))
7198 /* Create the .msym section on IRIX6. It is used by the dynamic
7199 linker to speed up dynamic relocations, and to avoid computing
7200 the ELF hash for symbols. */
7201 if (IRIX_COMPAT (abfd) == ict_irix6
7202 && !mips_elf_create_msym_section (abfd))
7205 /* Create .stub section. */
7206 if (bfd_get_section_by_name (abfd,
7207 MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL)
7209 s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd));
7211 || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
7212 || ! bfd_set_section_alignment (abfd, s,
7213 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7217 if ((IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
7219 && bfd_get_section_by_name (abfd, ".rld_map") == NULL)
7221 s = bfd_make_section (abfd, ".rld_map");
7223 || ! bfd_set_section_flags (abfd, s, flags & ~SEC_READONLY)
7224 || ! bfd_set_section_alignment (abfd, s,
7225 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7229 /* On IRIX5, we adjust add some additional symbols and change the
7230 alignments of several sections. There is no ABI documentation
7231 indicating that this is necessary on IRIX6, nor any evidence that
7232 the linker takes such action. */
7233 if (IRIX_COMPAT (abfd) == ict_irix5)
7235 for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++)
7238 if (! (_bfd_generic_link_add_one_symbol
7239 (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr,
7240 (bfd_vma) 0, (const char *) NULL, false,
7241 get_elf_backend_data (abfd)->collect,
7242 (struct bfd_link_hash_entry **) &h)))
7244 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7245 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7246 h->type = STT_SECTION;
7248 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7252 /* We need to create a .compact_rel section. */
7253 if (SGI_COMPAT (abfd))
7255 if (!mips_elf_create_compact_rel_section (abfd, info))
7259 /* Change aligments of some sections. */
7260 s = bfd_get_section_by_name (abfd, ".hash");
7262 bfd_set_section_alignment (abfd, s, 4);
7263 s = bfd_get_section_by_name (abfd, ".dynsym");
7265 bfd_set_section_alignment (abfd, s, 4);
7266 s = bfd_get_section_by_name (abfd, ".dynstr");
7268 bfd_set_section_alignment (abfd, s, 4);
7269 s = bfd_get_section_by_name (abfd, ".reginfo");
7271 bfd_set_section_alignment (abfd, s, 4);
7272 s = bfd_get_section_by_name (abfd, ".dynamic");
7274 bfd_set_section_alignment (abfd, s, 4);
7280 if (SGI_COMPAT (abfd))
7282 if (!(_bfd_generic_link_add_one_symbol
7283 (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr,
7284 (bfd_vma) 0, (const char *) NULL, false,
7285 get_elf_backend_data (abfd)->collect,
7286 (struct bfd_link_hash_entry **) &h)))
7291 /* For normal mips it is _DYNAMIC_LINKING. */
7292 if (!(_bfd_generic_link_add_one_symbol
7293 (info, abfd, "_DYNAMIC_LINKING", BSF_GLOBAL,
7294 bfd_abs_section_ptr, (bfd_vma) 0, (const char *) NULL, false,
7295 get_elf_backend_data (abfd)->collect,
7296 (struct bfd_link_hash_entry **) &h)))
7299 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7300 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7301 h->type = STT_SECTION;
7303 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7306 if (! mips_elf_hash_table (info)->use_rld_obj_head)
7308 /* __rld_map is a four byte word located in the .data section
7309 and is filled in by the rtld to contain a pointer to
7310 the _r_debug structure. Its symbol value will be set in
7311 mips_elf_finish_dynamic_symbol. */
7312 s = bfd_get_section_by_name (abfd, ".rld_map");
7313 BFD_ASSERT (s != NULL);
7316 if (SGI_COMPAT (abfd))
7318 if (!(_bfd_generic_link_add_one_symbol
7319 (info, abfd, "__rld_map", BSF_GLOBAL, s,
7320 (bfd_vma) 0, (const char *) NULL, false,
7321 get_elf_backend_data (abfd)->collect,
7322 (struct bfd_link_hash_entry **) &h)))
7327 /* For normal mips the symbol is __RLD_MAP. */
7328 if (!(_bfd_generic_link_add_one_symbol
7329 (info, abfd, "__RLD_MAP", BSF_GLOBAL, s,
7330 (bfd_vma) 0, (const char *) NULL, false,
7331 get_elf_backend_data (abfd)->collect,
7332 (struct bfd_link_hash_entry **) &h)))
7335 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7336 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7337 h->type = STT_OBJECT;
7339 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7347 /* Create the .compact_rel section. */
7350 mips_elf_create_compact_rel_section (abfd, info)
7352 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7355 register asection *s;
7357 if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL)
7359 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED
7362 s = bfd_make_section (abfd, ".compact_rel");
7364 || ! bfd_set_section_flags (abfd, s, flags)
7365 || ! bfd_set_section_alignment (abfd, s,
7366 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7369 s->_raw_size = sizeof (Elf32_External_compact_rel);
7375 /* Create the .got section to hold the global offset table. */
7378 mips_elf_create_got_section (abfd, info)
7380 struct bfd_link_info *info;
7383 register asection *s;
7384 struct elf_link_hash_entry *h;
7385 struct mips_got_info *g;
7387 /* This function may be called more than once. */
7388 if (mips_elf_got_section (abfd))
7391 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7392 | SEC_LINKER_CREATED);
7394 s = bfd_make_section (abfd, ".got");
7396 || ! bfd_set_section_flags (abfd, s, flags)
7397 || ! bfd_set_section_alignment (abfd, s, 4))
7400 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7401 linker script because we don't want to define the symbol if we
7402 are not creating a global offset table. */
7404 if (! (_bfd_generic_link_add_one_symbol
7405 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
7406 (bfd_vma) 0, (const char *) NULL, false,
7407 get_elf_backend_data (abfd)->collect,
7408 (struct bfd_link_hash_entry **) &h)))
7410 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7411 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7412 h->type = STT_OBJECT;
7415 && ! bfd_elf32_link_record_dynamic_symbol (info, h))
7418 /* The first several global offset table entries are reserved. */
7419 s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd);
7421 g = (struct mips_got_info *) bfd_alloc (abfd,
7422 sizeof (struct mips_got_info));
7425 g->global_gotsym = NULL;
7426 g->local_gotno = MIPS_RESERVED_GOTNO;
7427 g->assigned_gotno = MIPS_RESERVED_GOTNO;
7428 if (elf_section_data (s) == NULL)
7431 (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data));
7432 if (elf_section_data (s) == NULL)
7435 elf_section_data (s)->tdata = (PTR) g;
7436 elf_section_data (s)->this_hdr.sh_flags
7437 |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
7442 /* Returns the .msym section for ABFD, creating it if it does not
7443 already exist. Returns NULL to indicate error. */
7446 mips_elf_create_msym_section (abfd)
7451 s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
7454 s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
7456 || !bfd_set_section_flags (abfd, s,
7460 | SEC_LINKER_CREATED
7462 || !bfd_set_section_alignment (abfd, s,
7463 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7470 /* Add room for N relocations to the .rel.dyn section in ABFD. */
7473 mips_elf_allocate_dynamic_relocations (abfd, n)
7479 s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd));
7480 BFD_ASSERT (s != NULL);
7482 if (s->_raw_size == 0)
7484 /* Make room for a null element. */
7485 s->_raw_size += MIPS_ELF_REL_SIZE (abfd);
7488 s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd);
7491 /* Look through the relocs for a section during the first phase, and
7492 allocate space in the global offset table. */
7495 _bfd_mips_elf_check_relocs (abfd, info, sec, relocs)
7497 struct bfd_link_info *info;
7499 const Elf_Internal_Rela *relocs;
7503 Elf_Internal_Shdr *symtab_hdr;
7504 struct elf_link_hash_entry **sym_hashes;
7505 struct mips_got_info *g;
7507 const Elf_Internal_Rela *rel;
7508 const Elf_Internal_Rela *rel_end;
7511 struct elf_backend_data *bed;
7513 if (info->relocateable)
7516 dynobj = elf_hash_table (info)->dynobj;
7517 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
7518 sym_hashes = elf_sym_hashes (abfd);
7519 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
7521 /* Check for the mips16 stub sections. */
7523 name = bfd_get_section_name (abfd, sec);
7524 if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0)
7526 unsigned long r_symndx;
7528 /* Look at the relocation information to figure out which symbol
7531 r_symndx = ELF32_R_SYM (relocs->r_info);
7533 if (r_symndx < extsymoff
7534 || sym_hashes[r_symndx - extsymoff] == NULL)
7538 /* This stub is for a local symbol. This stub will only be
7539 needed if there is some relocation in this BFD, other
7540 than a 16 bit function call, which refers to this symbol. */
7541 for (o = abfd->sections; o != NULL; o = o->next)
7543 Elf_Internal_Rela *sec_relocs;
7544 const Elf_Internal_Rela *r, *rend;
7546 /* We can ignore stub sections when looking for relocs. */
7547 if ((o->flags & SEC_RELOC) == 0
7548 || o->reloc_count == 0
7549 || strncmp (bfd_get_section_name (abfd, o), FN_STUB,
7550 sizeof FN_STUB - 1) == 0
7551 || strncmp (bfd_get_section_name (abfd, o), CALL_STUB,
7552 sizeof CALL_STUB - 1) == 0
7553 || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB,
7554 sizeof CALL_FP_STUB - 1) == 0)
7557 sec_relocs = (_bfd_elf32_link_read_relocs
7558 (abfd, o, (PTR) NULL,
7559 (Elf_Internal_Rela *) NULL,
7560 info->keep_memory));
7561 if (sec_relocs == NULL)
7564 rend = sec_relocs + o->reloc_count;
7565 for (r = sec_relocs; r < rend; r++)
7566 if (ELF32_R_SYM (r->r_info) == r_symndx
7567 && ELF32_R_TYPE (r->r_info) != R_MIPS16_26)
7570 if (! info->keep_memory)
7579 /* There is no non-call reloc for this stub, so we do
7580 not need it. Since this function is called before
7581 the linker maps input sections to output sections, we
7582 can easily discard it by setting the SEC_EXCLUDE
7584 sec->flags |= SEC_EXCLUDE;
7588 /* Record this stub in an array of local symbol stubs for
7590 if (elf_tdata (abfd)->local_stubs == NULL)
7592 unsigned long symcount;
7595 if (elf_bad_symtab (abfd))
7596 symcount = NUM_SHDR_ENTRIES (symtab_hdr);
7598 symcount = symtab_hdr->sh_info;
7599 n = (asection **) bfd_zalloc (abfd,
7600 symcount * sizeof (asection *));
7603 elf_tdata (abfd)->local_stubs = n;
7606 elf_tdata (abfd)->local_stubs[r_symndx] = sec;
7608 /* We don't need to set mips16_stubs_seen in this case.
7609 That flag is used to see whether we need to look through
7610 the global symbol table for stubs. We don't need to set
7611 it here, because we just have a local stub. */
7615 struct mips_elf_link_hash_entry *h;
7617 h = ((struct mips_elf_link_hash_entry *)
7618 sym_hashes[r_symndx - extsymoff]);
7620 /* H is the symbol this stub is for. */
7623 mips_elf_hash_table (info)->mips16_stubs_seen = true;
7626 else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
7627 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
7629 unsigned long r_symndx;
7630 struct mips_elf_link_hash_entry *h;
7633 /* Look at the relocation information to figure out which symbol
7636 r_symndx = ELF32_R_SYM (relocs->r_info);
7638 if (r_symndx < extsymoff
7639 || sym_hashes[r_symndx - extsymoff] == NULL)
7641 /* This stub was actually built for a static symbol defined
7642 in the same file. We assume that all static symbols in
7643 mips16 code are themselves mips16, so we can simply
7644 discard this stub. Since this function is called before
7645 the linker maps input sections to output sections, we can
7646 easily discard it by setting the SEC_EXCLUDE flag. */
7647 sec->flags |= SEC_EXCLUDE;
7651 h = ((struct mips_elf_link_hash_entry *)
7652 sym_hashes[r_symndx - extsymoff]);
7654 /* H is the symbol this stub is for. */
7656 if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
7657 loc = &h->call_fp_stub;
7659 loc = &h->call_stub;
7661 /* If we already have an appropriate stub for this function, we
7662 don't need another one, so we can discard this one. Since
7663 this function is called before the linker maps input sections
7664 to output sections, we can easily discard it by setting the
7665 SEC_EXCLUDE flag. We can also discard this section if we
7666 happen to already know that this is a mips16 function; it is
7667 not necessary to check this here, as it is checked later, but
7668 it is slightly faster to check now. */
7669 if (*loc != NULL || h->root.other == STO_MIPS16)
7671 sec->flags |= SEC_EXCLUDE;
7676 mips_elf_hash_table (info)->mips16_stubs_seen = true;
7686 sgot = mips_elf_got_section (dynobj);
7691 BFD_ASSERT (elf_section_data (sgot) != NULL);
7692 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
7693 BFD_ASSERT (g != NULL);
7698 bed = get_elf_backend_data (abfd);
7699 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
7700 for (rel = relocs; rel < rel_end; ++rel)
7702 unsigned long r_symndx;
7704 struct elf_link_hash_entry *h;
7706 r_symndx = ELF32_R_SYM (rel->r_info);
7707 r_type = ELF32_R_TYPE (rel->r_info);
7709 if (r_symndx < extsymoff)
7711 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
7713 (*_bfd_error_handler)
7714 (_("Malformed reloc detected for section %s"), name);
7715 bfd_set_error (bfd_error_bad_value);
7720 h = sym_hashes[r_symndx - extsymoff];
7722 /* This may be an indirect symbol created because of a version. */
7725 while (h->root.type == bfd_link_hash_indirect)
7726 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7730 /* Some relocs require a global offset table. */
7731 if (dynobj == NULL || sgot == NULL)
7737 case R_MIPS_CALL_HI16:
7738 case R_MIPS_CALL_LO16:
7739 case R_MIPS_GOT_HI16:
7740 case R_MIPS_GOT_LO16:
7741 case R_MIPS_GOT_PAGE:
7742 case R_MIPS_GOT_OFST:
7743 case R_MIPS_GOT_DISP:
7745 elf_hash_table (info)->dynobj = dynobj = abfd;
7746 if (! mips_elf_create_got_section (dynobj, info))
7748 g = mips_elf_got_info (dynobj, &sgot);
7755 && (info->shared || h != NULL)
7756 && (sec->flags & SEC_ALLOC) != 0)
7757 elf_hash_table (info)->dynobj = dynobj = abfd;
7765 if (!h && (r_type == R_MIPS_CALL_LO16
7766 || r_type == R_MIPS_GOT_LO16
7767 || r_type == R_MIPS_GOT_DISP))
7769 /* We may need a local GOT entry for this relocation. We
7770 don't count R_MIPS_GOT_PAGE because we can estimate the
7771 maximum number of pages needed by looking at the size of
7772 the segment. Similar comments apply to R_MIPS_GOT16 and
7773 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
7774 R_MIPS_CALL_HI16 because these are always followed by an
7775 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
7777 This estimation is very conservative since we can merge
7778 duplicate entries in the GOT. In order to be less
7779 conservative, we could actually build the GOT here,
7780 rather than in relocate_section. */
7782 sgot->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
7790 (*_bfd_error_handler)
7791 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
7792 bfd_get_filename (abfd), (unsigned long) rel->r_offset);
7793 bfd_set_error (bfd_error_bad_value);
7798 case R_MIPS_CALL_HI16:
7799 case R_MIPS_CALL_LO16:
7802 /* This symbol requires a global offset table entry. */
7803 if (!mips_elf_record_global_got_symbol (h, info, g))
7806 /* We need a stub, not a plt entry for the undefined
7807 function. But we record it as if it needs plt. See
7808 elf_adjust_dynamic_symbol in elflink.h. */
7809 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
7815 case R_MIPS_GOT_HI16:
7816 case R_MIPS_GOT_LO16:
7817 case R_MIPS_GOT_DISP:
7818 /* This symbol requires a global offset table entry. */
7819 if (h && !mips_elf_record_global_got_symbol (h, info, g))
7826 if ((info->shared || h != NULL)
7827 && (sec->flags & SEC_ALLOC) != 0)
7831 const char *name = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj);
7833 sreloc = bfd_get_section_by_name (dynobj, name);
7836 sreloc = bfd_make_section (dynobj, name);
7838 || ! bfd_set_section_flags (dynobj, sreloc,
7843 | SEC_LINKER_CREATED
7845 || ! bfd_set_section_alignment (dynobj, sreloc,
7851 /* When creating a shared object, we must copy these
7852 reloc types into the output file as R_MIPS_REL32
7853 relocs. We make room for this reloc in the
7854 .rel.dyn reloc section. */
7855 mips_elf_allocate_dynamic_relocations (dynobj, 1);
7858 struct mips_elf_link_hash_entry *hmips;
7860 /* We only need to copy this reloc if the symbol is
7861 defined in a dynamic object. */
7862 hmips = (struct mips_elf_link_hash_entry *) h;
7863 ++hmips->possibly_dynamic_relocs;
7866 /* Even though we don't directly need a GOT entry for
7867 this symbol, a symbol must have a dynamic symbol
7868 table index greater that DT_MIPS_GOTSYM if there are
7869 dynamic relocations against it. */
7871 && !mips_elf_record_global_got_symbol (h, info, g))
7875 if (SGI_COMPAT (abfd))
7876 mips_elf_hash_table (info)->compact_rel_size +=
7877 sizeof (Elf32_External_crinfo);
7881 case R_MIPS_GPREL16:
7882 case R_MIPS_LITERAL:
7883 case R_MIPS_GPREL32:
7884 if (SGI_COMPAT (abfd))
7885 mips_elf_hash_table (info)->compact_rel_size +=
7886 sizeof (Elf32_External_crinfo);
7889 /* This relocation describes the C++ object vtable hierarchy.
7890 Reconstruct it for later use during GC. */
7891 case R_MIPS_GNU_VTINHERIT:
7892 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
7896 /* This relocation describes which C++ vtable entries are actually
7897 used. Record for later use during GC. */
7898 case R_MIPS_GNU_VTENTRY:
7899 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
7907 /* We must not create a stub for a symbol that has relocations
7908 related to taking the function's address. */
7914 struct mips_elf_link_hash_entry *mh;
7916 mh = (struct mips_elf_link_hash_entry *) h;
7917 mh->no_fn_stub = true;
7921 case R_MIPS_CALL_HI16:
7922 case R_MIPS_CALL_LO16:
7926 /* If this reloc is not a 16 bit call, and it has a global
7927 symbol, then we will need the fn_stub if there is one.
7928 References from a stub section do not count. */
7930 && r_type != R_MIPS16_26
7931 && strncmp (bfd_get_section_name (abfd, sec), FN_STUB,
7932 sizeof FN_STUB - 1) != 0
7933 && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB,
7934 sizeof CALL_STUB - 1) != 0
7935 && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB,
7936 sizeof CALL_FP_STUB - 1) != 0)
7938 struct mips_elf_link_hash_entry *mh;
7940 mh = (struct mips_elf_link_hash_entry *) h;
7941 mh->need_fn_stub = true;
7948 /* Return the section that should be marked against GC for a given
7952 _bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
7954 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7955 Elf_Internal_Rela *rel;
7956 struct elf_link_hash_entry *h;
7957 Elf_Internal_Sym *sym;
7959 /* ??? Do mips16 stub sections need to be handled special? */
7963 switch (ELF32_R_TYPE (rel->r_info))
7965 case R_MIPS_GNU_VTINHERIT:
7966 case R_MIPS_GNU_VTENTRY:
7970 switch (h->root.type)
7972 case bfd_link_hash_defined:
7973 case bfd_link_hash_defweak:
7974 return h->root.u.def.section;
7976 case bfd_link_hash_common:
7977 return h->root.u.c.p->section;
7986 if (!(elf_bad_symtab (abfd)
7987 && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
7988 && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
7989 && sym->st_shndx != SHN_COMMON))
7991 return bfd_section_from_elf_index (abfd, sym->st_shndx);
7998 /* Update the got entry reference counts for the section being removed. */
8001 _bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
8002 bfd *abfd ATTRIBUTE_UNUSED;
8003 struct bfd_link_info *info ATTRIBUTE_UNUSED;
8004 asection *sec ATTRIBUTE_UNUSED;
8005 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
8008 Elf_Internal_Shdr *symtab_hdr;
8009 struct elf_link_hash_entry **sym_hashes;
8010 bfd_signed_vma *local_got_refcounts;
8011 const Elf_Internal_Rela *rel, *relend;
8012 unsigned long r_symndx;
8013 struct elf_link_hash_entry *h;
8015 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8016 sym_hashes = elf_sym_hashes (abfd);
8017 local_got_refcounts = elf_local_got_refcounts (abfd);
8019 relend = relocs + sec->reloc_count;
8020 for (rel = relocs; rel < relend; rel++)
8021 switch (ELF32_R_TYPE (rel->r_info))
8025 case R_MIPS_CALL_HI16:
8026 case R_MIPS_CALL_LO16:
8027 case R_MIPS_GOT_HI16:
8028 case R_MIPS_GOT_LO16:
8029 /* ??? It would seem that the existing MIPS code does no sort
8030 of reference counting or whatnot on its GOT and PLT entries,
8031 so it is not possible to garbage collect them at this time. */
8042 /* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8043 hiding the old indirect symbol. Process additional relocation
8047 _bfd_mips_elf_copy_indirect_symbol (dir, ind)
8048 struct elf_link_hash_entry *dir, *ind;
8050 struct mips_elf_link_hash_entry *dirmips, *indmips;
8052 _bfd_elf_link_hash_copy_indirect (dir, ind);
8054 dirmips = (struct mips_elf_link_hash_entry *) dir;
8055 indmips = (struct mips_elf_link_hash_entry *) ind;
8056 dirmips->possibly_dynamic_relocs += indmips->possibly_dynamic_relocs;
8057 if (dirmips->min_dyn_reloc_index == 0
8058 || (indmips->min_dyn_reloc_index != 0
8059 && indmips->min_dyn_reloc_index < dirmips->min_dyn_reloc_index))
8060 dirmips->min_dyn_reloc_index = indmips->min_dyn_reloc_index;
8061 if (indmips->no_fn_stub)
8062 dirmips->no_fn_stub = true;
8065 /* Adjust a symbol defined by a dynamic object and referenced by a
8066 regular object. The current definition is in some section of the
8067 dynamic object, but we're not including those sections. We have to
8068 change the definition to something the rest of the link can
8072 _bfd_mips_elf_adjust_dynamic_symbol (info, h)
8073 struct bfd_link_info *info;
8074 struct elf_link_hash_entry *h;
8077 struct mips_elf_link_hash_entry *hmips;
8080 dynobj = elf_hash_table (info)->dynobj;
8082 /* Make sure we know what is going on here. */
8083 BFD_ASSERT (dynobj != NULL
8084 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
8085 || h->weakdef != NULL
8086 || ((h->elf_link_hash_flags
8087 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8088 && (h->elf_link_hash_flags
8089 & ELF_LINK_HASH_REF_REGULAR) != 0
8090 && (h->elf_link_hash_flags
8091 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
8093 /* If this symbol is defined in a dynamic object, we need to copy
8094 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8096 hmips = (struct mips_elf_link_hash_entry *) h;
8097 if (! info->relocateable
8098 && hmips->possibly_dynamic_relocs != 0
8099 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
8100 mips_elf_allocate_dynamic_relocations (dynobj,
8101 hmips->possibly_dynamic_relocs);
8103 /* For a function, create a stub, if allowed. */
8104 if (! hmips->no_fn_stub
8105 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
8107 if (! elf_hash_table (info)->dynamic_sections_created)
8110 /* If this symbol is not defined in a regular file, then set
8111 the symbol to the stub location. This is required to make
8112 function pointers compare as equal between the normal
8113 executable and the shared library. */
8114 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
8116 /* We need .stub section. */
8117 s = bfd_get_section_by_name (dynobj,
8118 MIPS_ELF_STUB_SECTION_NAME (dynobj));
8119 BFD_ASSERT (s != NULL);
8121 h->root.u.def.section = s;
8122 h->root.u.def.value = s->_raw_size;
8124 /* XXX Write this stub address somewhere. */
8125 h->plt.offset = s->_raw_size;
8127 /* Make room for this stub code. */
8128 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8130 /* The last half word of the stub will be filled with the index
8131 of this symbol in .dynsym section. */
8135 else if ((h->type == STT_FUNC)
8136 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
8138 /* This will set the entry for this symbol in the GOT to 0, and
8139 the dynamic linker will take care of this. */
8140 h->root.u.def.value = 0;
8144 /* If this is a weak symbol, and there is a real definition, the
8145 processor independent code will have arranged for us to see the
8146 real definition first, and we can just use the same value. */
8147 if (h->weakdef != NULL)
8149 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
8150 || h->weakdef->root.type == bfd_link_hash_defweak);
8151 h->root.u.def.section = h->weakdef->root.u.def.section;
8152 h->root.u.def.value = h->weakdef->root.u.def.value;
8156 /* This is a reference to a symbol defined by a dynamic object which
8157 is not a function. */
8162 /* This function is called after all the input files have been read,
8163 and the input sections have been assigned to output sections. We
8164 check for any mips16 stub sections that we can discard. */
8166 static boolean mips_elf_check_mips16_stubs
8167 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
8170 _bfd_mips_elf_always_size_sections (output_bfd, info)
8172 struct bfd_link_info *info;
8176 /* The .reginfo section has a fixed size. */
8177 ri = bfd_get_section_by_name (output_bfd, ".reginfo");
8179 bfd_set_section_size (output_bfd, ri, sizeof (Elf32_External_RegInfo));
8181 if (info->relocateable
8182 || ! mips_elf_hash_table (info)->mips16_stubs_seen)
8185 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
8186 mips_elf_check_mips16_stubs,
8192 /* Check the mips16 stubs for a particular symbol, and see if we can
8196 mips_elf_check_mips16_stubs (h, data)
8197 struct mips_elf_link_hash_entry *h;
8198 PTR data ATTRIBUTE_UNUSED;
8200 if (h->fn_stub != NULL
8201 && ! h->need_fn_stub)
8203 /* We don't need the fn_stub; the only references to this symbol
8204 are 16 bit calls. Clobber the size to 0 to prevent it from
8205 being included in the link. */
8206 h->fn_stub->_raw_size = 0;
8207 h->fn_stub->_cooked_size = 0;
8208 h->fn_stub->flags &= ~SEC_RELOC;
8209 h->fn_stub->reloc_count = 0;
8210 h->fn_stub->flags |= SEC_EXCLUDE;
8213 if (h->call_stub != NULL
8214 && h->root.other == STO_MIPS16)
8216 /* We don't need the call_stub; this is a 16 bit function, so
8217 calls from other 16 bit functions are OK. Clobber the size
8218 to 0 to prevent it from being included in the link. */
8219 h->call_stub->_raw_size = 0;
8220 h->call_stub->_cooked_size = 0;
8221 h->call_stub->flags &= ~SEC_RELOC;
8222 h->call_stub->reloc_count = 0;
8223 h->call_stub->flags |= SEC_EXCLUDE;
8226 if (h->call_fp_stub != NULL
8227 && h->root.other == STO_MIPS16)
8229 /* We don't need the call_stub; this is a 16 bit function, so
8230 calls from other 16 bit functions are OK. Clobber the size
8231 to 0 to prevent it from being included in the link. */
8232 h->call_fp_stub->_raw_size = 0;
8233 h->call_fp_stub->_cooked_size = 0;
8234 h->call_fp_stub->flags &= ~SEC_RELOC;
8235 h->call_fp_stub->reloc_count = 0;
8236 h->call_fp_stub->flags |= SEC_EXCLUDE;
8242 /* Set the sizes of the dynamic sections. */
8245 _bfd_mips_elf_size_dynamic_sections (output_bfd, info)
8247 struct bfd_link_info *info;
8252 struct mips_got_info *g = NULL;
8254 dynobj = elf_hash_table (info)->dynobj;
8255 BFD_ASSERT (dynobj != NULL);
8257 if (elf_hash_table (info)->dynamic_sections_created)
8259 /* Set the contents of the .interp section to the interpreter. */
8262 s = bfd_get_section_by_name (dynobj, ".interp");
8263 BFD_ASSERT (s != NULL);
8265 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1;
8267 = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd);
8271 /* The check_relocs and adjust_dynamic_symbol entry points have
8272 determined the sizes of the various dynamic sections. Allocate
8275 for (s = dynobj->sections; s != NULL; s = s->next)
8280 /* It's OK to base decisions on the section name, because none
8281 of the dynobj section names depend upon the input files. */
8282 name = bfd_get_section_name (dynobj, s);
8284 if ((s->flags & SEC_LINKER_CREATED) == 0)
8289 if (strncmp (name, ".rel", 4) == 0)
8291 if (s->_raw_size == 0)
8293 /* We only strip the section if the output section name
8294 has the same name. Otherwise, there might be several
8295 input sections for this output section. FIXME: This
8296 code is probably not needed these days anyhow, since
8297 the linker now does not create empty output sections. */
8298 if (s->output_section != NULL
8300 bfd_get_section_name (s->output_section->owner,
8301 s->output_section)) == 0)
8306 const char *outname;
8309 /* If this relocation section applies to a read only
8310 section, then we probably need a DT_TEXTREL entry.
8311 If the relocation section is .rel.dyn, we always
8312 assert a DT_TEXTREL entry rather than testing whether
8313 there exists a relocation to a read only section or
8315 outname = bfd_get_section_name (output_bfd,
8317 target = bfd_get_section_by_name (output_bfd, outname + 4);
8319 && (target->flags & SEC_READONLY) != 0
8320 && (target->flags & SEC_ALLOC) != 0)
8322 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0)
8325 /* We use the reloc_count field as a counter if we need
8326 to copy relocs into the output file. */
8328 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0)
8332 else if (strncmp (name, ".got", 4) == 0)
8335 bfd_size_type loadable_size = 0;
8336 bfd_size_type local_gotno;
8339 BFD_ASSERT (elf_section_data (s) != NULL);
8340 g = (struct mips_got_info *) elf_section_data (s)->tdata;
8341 BFD_ASSERT (g != NULL);
8343 /* Calculate the total loadable size of the output. That
8344 will give us the maximum number of GOT_PAGE entries
8346 for (sub = info->input_bfds; sub; sub = sub->link_next)
8348 asection *subsection;
8350 for (subsection = sub->sections;
8352 subsection = subsection->next)
8354 if ((subsection->flags & SEC_ALLOC) == 0)
8356 loadable_size += (subsection->_raw_size + 0xf) & ~0xf;
8359 loadable_size += MIPS_FUNCTION_STUB_SIZE;
8361 /* Assume there are two loadable segments consisting of
8362 contiguous sections. Is 5 enough? */
8363 local_gotno = (loadable_size >> 16) + 5;
8364 if (IRIX_COMPAT (output_bfd) == ict_irix6)
8365 /* It's possible we will need GOT_PAGE entries as well as
8366 GOT16 entries. Often, these will be able to share GOT
8367 entries, but not always. */
8370 g->local_gotno += local_gotno;
8371 s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj);
8373 /* There has to be a global GOT entry for every symbol with
8374 a dynamic symbol table index of DT_MIPS_GOTSYM or
8375 higher. Therefore, it make sense to put those symbols
8376 that need GOT entries at the end of the symbol table. We
8378 if (!mips_elf_sort_hash_table (info, 1))
8381 if (g->global_gotsym != NULL)
8382 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
8384 /* If there are no global symbols, or none requiring
8385 relocations, then GLOBAL_GOTSYM will be NULL. */
8387 g->global_gotno = i;
8388 s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj);
8390 else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0)
8392 /* Irix rld assumes that the function stub isn't at the end
8393 of .text section. So put a dummy. XXX */
8394 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8396 else if (! info->shared
8397 && ! mips_elf_hash_table (info)->use_rld_obj_head
8398 && strncmp (name, ".rld_map", 8) == 0)
8400 /* We add a room for __rld_map. It will be filled in by the
8401 rtld to contain a pointer to the _r_debug structure. */
8404 else if (SGI_COMPAT (output_bfd)
8405 && strncmp (name, ".compact_rel", 12) == 0)
8406 s->_raw_size += mips_elf_hash_table (info)->compact_rel_size;
8407 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))
8409 s->_raw_size = (sizeof (Elf32_External_Msym)
8410 * (elf_hash_table (info)->dynsymcount
8411 + bfd_count_sections (output_bfd)));
8412 else if (strncmp (name, ".init", 5) != 0)
8414 /* It's not one of our sections, so don't allocate space. */
8420 _bfd_strip_section_from_output (info, s);
8424 /* Allocate memory for the section contents. */
8425 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
8426 if (s->contents == NULL && s->_raw_size != 0)
8428 bfd_set_error (bfd_error_no_memory);
8433 if (elf_hash_table (info)->dynamic_sections_created)
8435 /* Add some entries to the .dynamic section. We fill in the
8436 values later, in elf_mips_finish_dynamic_sections, but we
8437 must add the entries now so that we get the correct size for
8438 the .dynamic section. The DT_DEBUG entry is filled in by the
8439 dynamic linker and used by the debugger. */
8442 /* SGI object has the equivalence of DT_DEBUG in the
8443 DT_MIPS_RLD_MAP entry. */
8444 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
8446 if (!SGI_COMPAT (output_bfd))
8448 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
8454 /* Shared libraries on traditional mips have DT_DEBUG. */
8455 if (!SGI_COMPAT (output_bfd))
8457 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
8461 if (reltext && SGI_COMPAT (output_bfd))
8463 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
8465 info->flags |= DF_TEXTREL;
8468 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
8471 if (bfd_get_section_by_name (dynobj,
8472 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)))
8474 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
8477 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
8480 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
8484 if (SGI_COMPAT (output_bfd))
8486 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0))
8490 if (SGI_COMPAT (output_bfd))
8492 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0))
8496 if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
8498 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0))
8501 s = bfd_get_section_by_name (dynobj, ".liblist");
8502 BFD_ASSERT (s != NULL);
8504 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0))
8508 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0))
8511 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0))
8515 /* Time stamps in executable files are a bad idea. */
8516 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0))
8521 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0))
8526 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0))
8530 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0))
8533 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0))
8536 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0))
8539 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0))
8542 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0))
8545 if (IRIX_COMPAT (dynobj) == ict_irix5
8546 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0))
8549 if (IRIX_COMPAT (dynobj) == ict_irix6
8550 && (bfd_get_section_by_name
8551 (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj)))
8552 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
8555 if (bfd_get_section_by_name (dynobj,
8556 MIPS_ELF_MSYM_SECTION_NAME (dynobj))
8557 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0))
8564 /* If NAME is one of the special IRIX6 symbols defined by the linker,
8565 adjust it appropriately now. */
8568 mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym)
8569 bfd *abfd ATTRIBUTE_UNUSED;
8571 Elf_Internal_Sym *sym;
8573 /* The linker script takes care of providing names and values for
8574 these, but we must place them into the right sections. */
8575 static const char* const text_section_symbols[] = {
8578 "__dso_displacement",
8580 "__program_header_table",
8584 static const char* const data_section_symbols[] = {
8592 const char* const *p;
8595 for (i = 0; i < 2; ++i)
8596 for (p = (i == 0) ? text_section_symbols : data_section_symbols;
8599 if (strcmp (*p, name) == 0)
8601 /* All of these symbols are given type STT_SECTION by the
8603 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
8605 /* The IRIX linker puts these symbols in special sections. */
8607 sym->st_shndx = SHN_MIPS_TEXT;
8609 sym->st_shndx = SHN_MIPS_DATA;
8615 /* Finish up dynamic symbol handling. We set the contents of various
8616 dynamic sections here. */
8619 _bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
8621 struct bfd_link_info *info;
8622 struct elf_link_hash_entry *h;
8623 Elf_Internal_Sym *sym;
8629 struct mips_got_info *g;
8631 struct mips_elf_link_hash_entry *mh;
8633 dynobj = elf_hash_table (info)->dynobj;
8634 gval = sym->st_value;
8635 mh = (struct mips_elf_link_hash_entry *) h;
8637 if (h->plt.offset != (bfd_vma) -1)
8641 bfd_byte stub[MIPS_FUNCTION_STUB_SIZE];
8643 /* This symbol has a stub. Set it up. */
8645 BFD_ASSERT (h->dynindx != -1);
8647 s = bfd_get_section_by_name (dynobj,
8648 MIPS_ELF_STUB_SECTION_NAME (dynobj));
8649 BFD_ASSERT (s != NULL);
8651 /* Fill the stub. */
8653 bfd_put_32 (output_bfd, STUB_LW (output_bfd), p);
8655 bfd_put_32 (output_bfd, STUB_MOVE (output_bfd), p);
8658 /* FIXME: Can h->dynindex be more than 64K? */
8659 if (h->dynindx & 0xffff0000)
8662 bfd_put_32 (output_bfd, STUB_JALR, p);
8664 bfd_put_32 (output_bfd, STUB_LI16 (output_bfd) + h->dynindx, p);
8666 BFD_ASSERT (h->plt.offset <= s->_raw_size);
8667 memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE);
8669 /* Mark the symbol as undefined. plt.offset != -1 occurs
8670 only for the referenced symbol. */
8671 sym->st_shndx = SHN_UNDEF;
8673 /* The run-time linker uses the st_value field of the symbol
8674 to reset the global offset table entry for this external
8675 to its stub address when unlinking a shared object. */
8676 gval = s->output_section->vma + s->output_offset + h->plt.offset;
8677 sym->st_value = gval;
8680 BFD_ASSERT (h->dynindx != -1
8681 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0);
8683 sgot = mips_elf_got_section (dynobj);
8684 BFD_ASSERT (sgot != NULL);
8685 BFD_ASSERT (elf_section_data (sgot) != NULL);
8686 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
8687 BFD_ASSERT (g != NULL);
8689 /* Run through the global symbol table, creating GOT entries for all
8690 the symbols that need them. */
8691 if (g->global_gotsym != NULL
8692 && h->dynindx >= g->global_gotsym->dynindx)
8698 value = sym->st_value;
8701 /* For an entity defined in a shared object, this will be
8702 NULL. (For functions in shared objects for
8703 which we have created stubs, ST_VALUE will be non-NULL.
8704 That's because such the functions are now no longer defined
8705 in a shared object.) */
8707 if (info->shared && h->root.type == bfd_link_hash_undefined)
8710 value = h->root.u.def.value;
8712 offset = mips_elf_global_got_index (dynobj, h);
8713 MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset);
8716 /* Create a .msym entry, if appropriate. */
8717 smsym = bfd_get_section_by_name (dynobj,
8718 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
8721 Elf32_Internal_Msym msym;
8723 msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
8724 /* It is undocumented what the `1' indicates, but IRIX6 uses
8726 msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
8727 bfd_mips_elf_swap_msym_out
8729 ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
8732 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
8733 name = h->root.root.string;
8734 if (strcmp (name, "_DYNAMIC") == 0
8735 || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
8736 sym->st_shndx = SHN_ABS;
8737 else if (strcmp (name, "_DYNAMIC_LINK") == 0
8738 || strcmp (name, "_DYNAMIC_LINKING") == 0)
8740 sym->st_shndx = SHN_ABS;
8741 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
8744 else if (strcmp (name, "_gp_disp") == 0)
8746 sym->st_shndx = SHN_ABS;
8747 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
8748 sym->st_value = elf_gp (output_bfd);
8750 else if (SGI_COMPAT (output_bfd))
8752 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
8753 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
8755 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
8756 sym->st_other = STO_PROTECTED;
8758 sym->st_shndx = SHN_MIPS_DATA;
8760 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
8762 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
8763 sym->st_other = STO_PROTECTED;
8764 sym->st_value = mips_elf_hash_table (info)->procedure_count;
8765 sym->st_shndx = SHN_ABS;
8767 else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS)
8769 if (h->type == STT_FUNC)
8770 sym->st_shndx = SHN_MIPS_TEXT;
8771 else if (h->type == STT_OBJECT)
8772 sym->st_shndx = SHN_MIPS_DATA;
8776 /* Handle the IRIX6-specific symbols. */
8777 if (IRIX_COMPAT (output_bfd) == ict_irix6)
8778 mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym);
8782 if (! mips_elf_hash_table (info)->use_rld_obj_head
8783 && (strcmp (name, "__rld_map") == 0
8784 || strcmp (name, "__RLD_MAP") == 0))
8786 asection *s = bfd_get_section_by_name (dynobj, ".rld_map");
8787 BFD_ASSERT (s != NULL);
8788 sym->st_value = s->output_section->vma + s->output_offset;
8789 bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents);
8790 if (mips_elf_hash_table (info)->rld_value == 0)
8791 mips_elf_hash_table (info)->rld_value = sym->st_value;
8793 else if (mips_elf_hash_table (info)->use_rld_obj_head
8794 && strcmp (name, "__rld_obj_head") == 0)
8796 /* IRIX6 does not use a .rld_map section. */
8797 if (IRIX_COMPAT (output_bfd) == ict_irix5
8798 || IRIX_COMPAT (output_bfd) == ict_none)
8799 BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map")
8801 mips_elf_hash_table (info)->rld_value = sym->st_value;
8805 /* If this is a mips16 symbol, force the value to be even. */
8806 if (sym->st_other == STO_MIPS16
8807 && (sym->st_value & 1) != 0)
8813 /* Finish up the dynamic sections. */
8816 _bfd_mips_elf_finish_dynamic_sections (output_bfd, info)
8818 struct bfd_link_info *info;
8823 struct mips_got_info *g;
8825 dynobj = elf_hash_table (info)->dynobj;
8827 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8829 sgot = mips_elf_got_section (dynobj);
8834 BFD_ASSERT (elf_section_data (sgot) != NULL);
8835 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
8836 BFD_ASSERT (g != NULL);
8839 if (elf_hash_table (info)->dynamic_sections_created)
8843 BFD_ASSERT (sdyn != NULL);
8844 BFD_ASSERT (g != NULL);
8846 for (b = sdyn->contents;
8847 b < sdyn->contents + sdyn->_raw_size;
8848 b += MIPS_ELF_DYN_SIZE (dynobj))
8850 Elf_Internal_Dyn dyn;
8856 /* Read in the current dynamic entry. */
8857 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
8859 /* Assume that we're going to modify it and write it out. */
8865 s = (bfd_get_section_by_name
8867 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)));
8868 BFD_ASSERT (s != NULL);
8869 dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj);
8873 /* Rewrite DT_STRSZ. */
8875 _bfd_stringtab_size (elf_hash_table (info)->dynstr);
8881 case DT_MIPS_CONFLICT:
8884 case DT_MIPS_LIBLIST:
8887 s = bfd_get_section_by_name (output_bfd, name);
8888 BFD_ASSERT (s != NULL);
8889 dyn.d_un.d_ptr = s->vma;
8892 case DT_MIPS_RLD_VERSION:
8893 dyn.d_un.d_val = 1; /* XXX */
8897 dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
8900 case DT_MIPS_CONFLICTNO:
8902 elemsize = sizeof (Elf32_Conflict);
8905 case DT_MIPS_LIBLISTNO:
8907 elemsize = sizeof (Elf32_Lib);
8909 s = bfd_get_section_by_name (output_bfd, name);
8912 if (s->_cooked_size != 0)
8913 dyn.d_un.d_val = s->_cooked_size / elemsize;
8915 dyn.d_un.d_val = s->_raw_size / elemsize;
8921 case DT_MIPS_TIME_STAMP:
8922 time ((time_t *) &dyn.d_un.d_val);
8925 case DT_MIPS_ICHECKSUM:
8930 case DT_MIPS_IVERSION:
8935 case DT_MIPS_BASE_ADDRESS:
8936 s = output_bfd->sections;
8937 BFD_ASSERT (s != NULL);
8938 dyn.d_un.d_ptr = s->vma & ~(0xffff);
8941 case DT_MIPS_LOCAL_GOTNO:
8942 dyn.d_un.d_val = g->local_gotno;
8945 case DT_MIPS_UNREFEXTNO:
8946 /* The index into the dynamic symbol table which is the
8947 entry of the first external symbol that is not
8948 referenced within the same object. */
8949 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
8952 case DT_MIPS_GOTSYM:
8953 if (g->global_gotsym)
8955 dyn.d_un.d_val = g->global_gotsym->dynindx;
8958 /* In case if we don't have global got symbols we default
8959 to setting DT_MIPS_GOTSYM to the same value as
8960 DT_MIPS_SYMTABNO, so we just fall through. */
8962 case DT_MIPS_SYMTABNO:
8964 elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
8965 s = bfd_get_section_by_name (output_bfd, name);
8966 BFD_ASSERT (s != NULL);
8968 if (s->_cooked_size != 0)
8969 dyn.d_un.d_val = s->_cooked_size / elemsize;
8971 dyn.d_un.d_val = s->_raw_size / elemsize;
8974 case DT_MIPS_HIPAGENO:
8975 dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
8978 case DT_MIPS_RLD_MAP:
8979 dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value;
8982 case DT_MIPS_OPTIONS:
8983 s = (bfd_get_section_by_name
8984 (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
8985 dyn.d_un.d_ptr = s->vma;
8989 s = (bfd_get_section_by_name
8990 (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)));
8991 dyn.d_un.d_ptr = s->vma;
9000 (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
9005 /* The first entry of the global offset table will be filled at
9006 runtime. The second entry will be used by some runtime loaders.
9007 This isn't the case of Irix rld. */
9008 if (sgot != NULL && sgot->_raw_size > 0)
9010 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents);
9011 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000,
9012 sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd));
9016 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
9017 = MIPS_ELF_GOT_SIZE (output_bfd);
9022 Elf32_compact_rel cpt;
9024 /* ??? The section symbols for the output sections were set up in
9025 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9026 symbols. Should we do so? */
9028 smsym = bfd_get_section_by_name (dynobj,
9029 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
9032 Elf32_Internal_Msym msym;
9034 msym.ms_hash_value = 0;
9035 msym.ms_info = ELF32_MS_INFO (0, 1);
9037 for (s = output_bfd->sections; s != NULL; s = s->next)
9039 long dynindx = elf_section_data (s)->dynindx;
9041 bfd_mips_elf_swap_msym_out
9043 (((Elf32_External_Msym *) smsym->contents)
9048 if (SGI_COMPAT (output_bfd))
9050 /* Write .compact_rel section out. */
9051 s = bfd_get_section_by_name (dynobj, ".compact_rel");
9055 cpt.num = s->reloc_count;
9057 cpt.offset = (s->output_section->filepos
9058 + sizeof (Elf32_External_compact_rel));
9061 bfd_elf32_swap_compact_rel_out (output_bfd, &cpt,
9062 ((Elf32_External_compact_rel *)
9065 /* Clean up a dummy stub function entry in .text. */
9066 s = bfd_get_section_by_name (dynobj,
9067 MIPS_ELF_STUB_SECTION_NAME (dynobj));
9070 file_ptr dummy_offset;
9072 BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE);
9073 dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE;
9074 memset (s->contents + dummy_offset, 0,
9075 MIPS_FUNCTION_STUB_SIZE);
9080 /* We need to sort the entries of the dynamic relocation section. */
9082 if (!ABI_64_P (output_bfd))
9086 reldyn = bfd_get_section_by_name (dynobj,
9087 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9088 if (reldyn != NULL && reldyn->reloc_count > 2)
9090 reldyn_sorting_bfd = output_bfd;
9091 qsort ((Elf32_External_Rel *) reldyn->contents + 1,
9092 (size_t) reldyn->reloc_count - 1,
9093 sizeof (Elf32_External_Rel), sort_dynamic_relocs);
9097 /* Clean up a first relocation in .rel.dyn. */
9098 s = bfd_get_section_by_name (dynobj,
9099 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9100 if (s != NULL && s->_raw_size > 0)
9101 memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj));
9107 /* This is almost identical to bfd_generic_get_... except that some
9108 MIPS relocations need to be handled specially. Sigh. */
9111 elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data,
9112 relocateable, symbols)
9114 struct bfd_link_info *link_info;
9115 struct bfd_link_order *link_order;
9117 boolean relocateable;
9120 /* Get enough memory to hold the stuff */
9121 bfd *input_bfd = link_order->u.indirect.section->owner;
9122 asection *input_section = link_order->u.indirect.section;
9124 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
9125 arelent **reloc_vector = NULL;
9131 reloc_vector = (arelent **) bfd_malloc (reloc_size);
9132 if (reloc_vector == NULL && reloc_size != 0)
9135 /* read in the section */
9136 if (!bfd_get_section_contents (input_bfd,
9140 input_section->_raw_size))
9143 /* We're not relaxing the section, so just copy the size info */
9144 input_section->_cooked_size = input_section->_raw_size;
9145 input_section->reloc_done = true;
9147 reloc_count = bfd_canonicalize_reloc (input_bfd,
9151 if (reloc_count < 0)
9154 if (reloc_count > 0)
9159 bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */
9162 struct bfd_hash_entry *h;
9163 struct bfd_link_hash_entry *lh;
9164 /* Skip all this stuff if we aren't mixing formats. */
9165 if (abfd && input_bfd
9166 && abfd->xvec == input_bfd->xvec)
9170 h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false);
9171 lh = (struct bfd_link_hash_entry *) h;
9178 case bfd_link_hash_undefined:
9179 case bfd_link_hash_undefweak:
9180 case bfd_link_hash_common:
9183 case bfd_link_hash_defined:
9184 case bfd_link_hash_defweak:
9186 gp = lh->u.def.value;
9188 case bfd_link_hash_indirect:
9189 case bfd_link_hash_warning:
9191 /* @@FIXME ignoring warning for now */
9193 case bfd_link_hash_new:
9202 for (parent = reloc_vector; *parent != (arelent *) NULL;
9205 char *error_message = (char *) NULL;
9206 bfd_reloc_status_type r;
9208 /* Specific to MIPS: Deal with relocation types that require
9209 knowing the gp of the output bfd. */
9210 asymbol *sym = *(*parent)->sym_ptr_ptr;
9211 if (bfd_is_abs_section (sym->section) && abfd)
9213 /* The special_function wouldn't get called anyways. */
9217 /* The gp isn't there; let the special function code
9218 fall over on its own. */
9220 else if ((*parent)->howto->special_function
9221 == _bfd_mips_elf_gprel16_reloc)
9223 /* bypass special_function call */
9224 r = gprel16_with_gp (input_bfd, sym, *parent, input_section,
9225 relocateable, (PTR) data, gp);
9226 goto skip_bfd_perform_relocation;
9228 /* end mips specific stuff */
9230 r = bfd_perform_relocation (input_bfd,
9234 relocateable ? abfd : (bfd *) NULL,
9236 skip_bfd_perform_relocation:
9240 asection *os = input_section->output_section;
9242 /* A partial link, so keep the relocs */
9243 os->orelocation[os->reloc_count] = *parent;
9247 if (r != bfd_reloc_ok)
9251 case bfd_reloc_undefined:
9252 if (!((*link_info->callbacks->undefined_symbol)
9253 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
9254 input_bfd, input_section, (*parent)->address,
9258 case bfd_reloc_dangerous:
9259 BFD_ASSERT (error_message != (char *) NULL);
9260 if (!((*link_info->callbacks->reloc_dangerous)
9261 (link_info, error_message, input_bfd, input_section,
9262 (*parent)->address)))
9265 case bfd_reloc_overflow:
9266 if (!((*link_info->callbacks->reloc_overflow)
9267 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
9268 (*parent)->howto->name, (*parent)->addend,
9269 input_bfd, input_section, (*parent)->address)))
9272 case bfd_reloc_outofrange:
9281 if (reloc_vector != NULL)
9282 free (reloc_vector);
9286 if (reloc_vector != NULL)
9287 free (reloc_vector);
9291 #define bfd_elf32_bfd_get_relocated_section_contents \
9292 elf32_mips_get_relocated_section_contents
9294 /* ECOFF swapping routines. These are used when dealing with the
9295 .mdebug section, which is in the ECOFF debugging format. */
9296 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
9297 /* Symbol table magic number. */
9299 /* Alignment of debugging information. E.g., 4. */
9301 /* Sizes of external symbolic information. */
9302 sizeof (struct hdr_ext),
9303 sizeof (struct dnr_ext),
9304 sizeof (struct pdr_ext),
9305 sizeof (struct sym_ext),
9306 sizeof (struct opt_ext),
9307 sizeof (struct fdr_ext),
9308 sizeof (struct rfd_ext),
9309 sizeof (struct ext_ext),
9310 /* Functions to swap in external symbolic data. */
9319 _bfd_ecoff_swap_tir_in,
9320 _bfd_ecoff_swap_rndx_in,
9321 /* Functions to swap out external symbolic data. */
9330 _bfd_ecoff_swap_tir_out,
9331 _bfd_ecoff_swap_rndx_out,
9332 /* Function to read in symbolic data. */
9333 _bfd_mips_elf_read_ecoff_info
9336 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
9337 #define TARGET_LITTLE_NAME "elf32-littlemips"
9338 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
9339 #define TARGET_BIG_NAME "elf32-bigmips"
9340 #define ELF_ARCH bfd_arch_mips
9341 #define ELF_MACHINE_CODE EM_MIPS
9343 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
9344 a value of 0x1000, and we are compatible. */
9345 #define ELF_MAXPAGESIZE 0x1000
9347 #define elf_backend_collect true
9348 #define elf_backend_type_change_ok true
9349 #define elf_backend_can_gc_sections true
9350 #define elf_backend_sign_extend_vma true
9351 #define elf_info_to_howto mips_info_to_howto_rela
9352 #define elf_info_to_howto_rel mips_info_to_howto_rel
9353 #define elf_backend_sym_is_global mips_elf_sym_is_global
9354 #define elf_backend_object_p _bfd_mips_elf_object_p
9355 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
9356 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
9357 #define elf_backend_section_from_bfd_section \
9358 _bfd_mips_elf_section_from_bfd_section
9359 #define elf_backend_section_processing _bfd_mips_elf_section_processing
9360 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
9361 #define elf_backend_additional_program_headers \
9362 _bfd_mips_elf_additional_program_headers
9363 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
9364 #define elf_backend_final_write_processing \
9365 _bfd_mips_elf_final_write_processing
9366 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
9367 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
9368 #define elf_backend_create_dynamic_sections \
9369 _bfd_mips_elf_create_dynamic_sections
9370 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
9371 #define elf_backend_adjust_dynamic_symbol \
9372 _bfd_mips_elf_adjust_dynamic_symbol
9373 #define elf_backend_always_size_sections \
9374 _bfd_mips_elf_always_size_sections
9375 #define elf_backend_size_dynamic_sections \
9376 _bfd_mips_elf_size_dynamic_sections
9377 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
9378 #define elf_backend_link_output_symbol_hook \
9379 _bfd_mips_elf_link_output_symbol_hook
9380 #define elf_backend_finish_dynamic_symbol \
9381 _bfd_mips_elf_finish_dynamic_symbol
9382 #define elf_backend_finish_dynamic_sections \
9383 _bfd_mips_elf_finish_dynamic_sections
9384 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
9385 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
9387 #define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO)
9388 #define elf_backend_plt_header_size 0
9390 #define elf_backend_copy_indirect_symbol \
9391 _bfd_mips_elf_copy_indirect_symbol
9393 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
9395 #define bfd_elf32_bfd_is_local_label_name \
9396 mips_elf_is_local_label_name
9397 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
9398 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
9399 #define bfd_elf32_bfd_link_hash_table_create \
9400 _bfd_mips_elf_link_hash_table_create
9401 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
9402 #define bfd_elf32_bfd_copy_private_bfd_data \
9403 _bfd_mips_elf_copy_private_bfd_data
9404 #define bfd_elf32_bfd_merge_private_bfd_data \
9405 _bfd_mips_elf_merge_private_bfd_data
9406 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
9407 #define bfd_elf32_bfd_print_private_bfd_data \
9408 _bfd_mips_elf_print_private_bfd_data
9409 #include "elf32-target.h"
9411 /* Support for traditional mips targets */
9413 #define INCLUDED_TARGET_FILE /* More a type of flag */
9415 #undef TARGET_LITTLE_SYM
9416 #undef TARGET_LITTLE_NAME
9417 #undef TARGET_BIG_SYM
9418 #undef TARGET_BIG_NAME
9420 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
9421 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
9422 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
9423 #define TARGET_BIG_NAME "elf32-tradbigmips"
9425 /* Include the target file again for this target */
9426 #include "elf32-target.h"