1 /* MIPS-specific support for 32-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 Most of the information added by Ian Lance Taylor, Cygnus Support,
7 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
8 <mark@codesourcery.com>
9 Traditional MIPS targets support added by Koundinya.K, Dansk Data
10 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
29 different MIPS ELF from other targets. This matters when linking.
30 This file supports both, switching at runtime. */
40 /* Get the ECOFF swapping routines. */
42 #include "coff/symconst.h"
43 #include "coff/internal.h"
44 #include "coff/ecoff.h"
45 #include "coff/mips.h"
46 #define ECOFF_SIGNED_32
47 #include "ecoffswap.h"
49 /* This structure is used to hold .got information when linking. It
50 is stored in the tdata field of the bfd_elf_section_data structure. */
54 /* The global symbol in the GOT with the lowest index in the dynamic
56 struct elf_link_hash_entry *global_gotsym;
57 /* The number of global .got entries. */
58 unsigned int global_gotno;
59 /* The number of local .got entries. */
60 unsigned int local_gotno;
61 /* The number of local .got entries we have used. */
62 unsigned int assigned_gotno;
65 /* The MIPS ELF linker needs additional information for each symbol in
66 the global hash table. */
68 struct mips_elf_link_hash_entry
70 struct elf_link_hash_entry root;
72 /* External symbol information. */
75 /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against
77 unsigned int possibly_dynamic_relocs;
79 /* If the R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 reloc is against
80 a readonly section. */
81 boolean readonly_reloc;
83 /* The index of the first dynamic relocation (in the .rel.dyn
84 section) against this symbol. */
85 unsigned int min_dyn_reloc_index;
87 /* We must not create a stub for a symbol that has relocations
88 related to taking the function's address, i.e. any but
89 R_MIPS_CALL*16 ones -- see "MIPS ABI Supplement, 3rd Edition",
93 /* If there is a stub that 32 bit functions should use to call this
94 16 bit function, this points to the section containing the stub. */
97 /* Whether we need the fn_stub; this is set if this symbol appears
98 in any relocs other than a 16 bit call. */
101 /* If there is a stub that 16 bit functions should use to call this
102 32 bit function, this points to the section containing the stub. */
105 /* This is like the call_stub field, but it is used if the function
106 being called returns a floating point value. */
107 asection *call_fp_stub;
110 static bfd_reloc_status_type mips32_64bit_reloc
111 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
112 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
113 PARAMS ((bfd *, bfd_reloc_code_real_type));
114 static reloc_howto_type *mips_rtype_to_howto
115 PARAMS ((unsigned int));
116 static void mips_info_to_howto_rel
117 PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
118 static void mips_info_to_howto_rela
119 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
120 static void bfd_mips_elf32_swap_gptab_in
121 PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *));
122 static void bfd_mips_elf32_swap_gptab_out
123 PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *));
125 static void bfd_mips_elf_swap_msym_in
126 PARAMS ((bfd *, const Elf32_External_Msym *, Elf32_Internal_Msym *));
128 static void bfd_mips_elf_swap_msym_out
129 PARAMS ((bfd *, const Elf32_Internal_Msym *, Elf32_External_Msym *));
130 static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *));
131 static boolean mips_elf_create_procedure_table
132 PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *,
133 struct ecoff_debug_info *));
134 static INLINE int elf_mips_isa PARAMS ((flagword));
135 static INLINE unsigned long elf_mips_mach PARAMS ((flagword));
136 static INLINE char* elf_mips_abi_name PARAMS ((bfd *));
137 static boolean mips_elf_is_local_label_name
138 PARAMS ((bfd *, const char *));
139 static struct bfd_hash_entry *mips_elf_link_hash_newfunc
140 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
141 static int gptab_compare PARAMS ((const void *, const void *));
142 static bfd_reloc_status_type mips16_jump_reloc
143 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
144 static bfd_reloc_status_type mips16_gprel_reloc
145 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
146 static boolean mips_elf_create_compact_rel_section
147 PARAMS ((bfd *, struct bfd_link_info *));
148 static boolean mips_elf_create_got_section
149 PARAMS ((bfd *, struct bfd_link_info *));
150 static bfd_reloc_status_type mips_elf_final_gp
151 PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *));
152 static bfd_byte *elf32_mips_get_relocated_section_contents
153 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
154 bfd_byte *, boolean, asymbol **));
155 static asection *mips_elf_create_msym_section
157 static void mips_elf_irix6_finish_dynamic_symbol
158 PARAMS ((bfd *, const char *, Elf_Internal_Sym *));
159 static bfd_vma mips_elf_sign_extend PARAMS ((bfd_vma, int));
160 static boolean mips_elf_overflow_p PARAMS ((bfd_vma, int));
161 static bfd_vma mips_elf_high PARAMS ((bfd_vma));
162 static bfd_vma mips_elf_higher PARAMS ((bfd_vma));
163 static bfd_vma mips_elf_highest PARAMS ((bfd_vma));
164 static bfd_vma mips_elf_global_got_index
165 PARAMS ((bfd *, struct elf_link_hash_entry *));
166 static bfd_vma mips_elf_local_got_index
167 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma));
168 static bfd_vma mips_elf_got_offset_from_index
169 PARAMS ((bfd *, bfd *, bfd_vma));
170 static boolean mips_elf_record_global_got_symbol
171 PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *,
172 struct mips_got_info *));
173 static bfd_vma mips_elf_got_page
174 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, bfd_vma *));
175 static const Elf_Internal_Rela *mips_elf_next_relocation
176 PARAMS ((unsigned int, const Elf_Internal_Rela *,
177 const Elf_Internal_Rela *));
178 static bfd_reloc_status_type mips_elf_calculate_relocation
179 PARAMS ((bfd *, bfd *, asection *, struct bfd_link_info *,
180 const Elf_Internal_Rela *, bfd_vma, reloc_howto_type *,
181 Elf_Internal_Sym *, asection **, bfd_vma *, const char **,
183 static bfd_vma mips_elf_obtain_contents
184 PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *));
185 static boolean mips_elf_perform_relocation
186 PARAMS ((struct bfd_link_info *, reloc_howto_type *,
187 const Elf_Internal_Rela *, bfd_vma,
188 bfd *, asection *, bfd_byte *, boolean));
189 static boolean mips_elf_assign_gp PARAMS ((bfd *, bfd_vma *));
190 static boolean mips_elf_sort_hash_table_f
191 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
192 static boolean mips_elf_sort_hash_table
193 PARAMS ((struct bfd_link_info *, unsigned long));
194 static asection * mips_elf_got_section PARAMS ((bfd *));
195 static struct mips_got_info *mips_elf_got_info
196 PARAMS ((bfd *, asection **));
197 static boolean mips_elf_local_relocation_p
198 PARAMS ((bfd *, const Elf_Internal_Rela *, asection **, boolean));
199 static bfd_vma mips_elf_create_local_got_entry
200 PARAMS ((bfd *, struct mips_got_info *, asection *, bfd_vma));
201 static bfd_vma mips_elf_got16_entry
202 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, boolean));
203 static boolean mips_elf_create_dynamic_relocation
204 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *,
205 struct mips_elf_link_hash_entry *, asection *,
206 bfd_vma, bfd_vma *, asection *));
207 static void mips_elf_allocate_dynamic_relocations
208 PARAMS ((bfd *, unsigned int));
209 static boolean mips_elf_stub_section_p
210 PARAMS ((bfd *, asection *));
211 static int sort_dynamic_relocs
212 PARAMS ((const void *, const void *));
213 static void _bfd_mips_elf_hide_symbol
214 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
215 static void _bfd_mips_elf_copy_indirect_symbol
216 PARAMS ((struct elf_link_hash_entry *,
217 struct elf_link_hash_entry *));
218 static boolean _bfd_elf32_mips_grok_prstatus
219 PARAMS ((bfd *, Elf_Internal_Note *));
220 static boolean _bfd_elf32_mips_grok_psinfo
221 PARAMS ((bfd *, Elf_Internal_Note *));
222 static boolean _bfd_elf32_mips_discard_info
223 PARAMS ((bfd *, struct elf_reloc_cookie *, struct bfd_link_info *));
224 static boolean _bfd_elf32_mips_ignore_discarded_relocs
225 PARAMS ((asection *));
226 static boolean _bfd_elf32_mips_write_section
227 PARAMS ((bfd *, asection *, bfd_byte *));
229 extern const bfd_target bfd_elf32_tradbigmips_vec;
230 extern const bfd_target bfd_elf32_tradlittlemips_vec;
232 extern const bfd_target bfd_elf64_tradbigmips_vec;
233 extern const bfd_target bfd_elf64_tradlittlemips_vec;
236 /* The level of IRIX compatibility we're striving for. */
244 /* This will be used when we sort the dynamic relocation records. */
245 static bfd *reldyn_sorting_bfd;
247 /* Nonzero if ABFD is using the N32 ABI. */
249 #define ABI_N32_P(abfd) \
250 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
252 /* Nonzero if ABFD is using the 64-bit ABI. */
253 #define ABI_64_P(abfd) \
254 ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0)
256 /* Depending on the target vector we generate some version of Irix
257 executables or "normal" MIPS ELF ABI executables. */
259 #define IRIX_COMPAT(abfd) \
260 (((abfd->xvec == &bfd_elf64_tradbigmips_vec) || \
261 (abfd->xvec == &bfd_elf64_tradlittlemips_vec) || \
262 (abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
263 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
264 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
266 #define IRIX_COMPAT(abfd) \
267 (((abfd->xvec == &bfd_elf32_tradbigmips_vec) || \
268 (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \
269 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
272 #define NEWABI_P(abfd) (ABI_N32_P(abfd) || ABI_64_P(abfd))
274 /* Whether we are trying to be compatible with IRIX at all. */
275 #define SGI_COMPAT(abfd) \
276 (IRIX_COMPAT (abfd) != ict_none)
278 /* The name of the msym section. */
279 #define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym"
281 /* The name of the srdata section. */
282 #define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata"
284 /* The name of the options section. */
285 #define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \
286 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options")
288 /* The name of the stub section. */
289 #define MIPS_ELF_STUB_SECTION_NAME(abfd) \
290 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub")
292 /* The name of the dynamic relocation section. */
293 #define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn"
295 /* The size of an external REL relocation. */
296 #define MIPS_ELF_REL_SIZE(abfd) \
297 (get_elf_backend_data (abfd)->s->sizeof_rel)
299 /* The size of an external dynamic table entry. */
300 #define MIPS_ELF_DYN_SIZE(abfd) \
301 (get_elf_backend_data (abfd)->s->sizeof_dyn)
303 /* The size of a GOT entry. */
304 #define MIPS_ELF_GOT_SIZE(abfd) \
305 (get_elf_backend_data (abfd)->s->arch_size / 8)
307 /* The size of a symbol-table entry. */
308 #define MIPS_ELF_SYM_SIZE(abfd) \
309 (get_elf_backend_data (abfd)->s->sizeof_sym)
311 /* The default alignment for sections, as a power of two. */
312 #define MIPS_ELF_LOG_FILE_ALIGN(abfd) \
313 (get_elf_backend_data (abfd)->s->file_align == 8 ? 3 : 2)
315 /* Get word-sized data. */
316 #define MIPS_ELF_GET_WORD(abfd, ptr) \
317 (ABI_64_P (abfd) ? bfd_get_64 (abfd, ptr) : bfd_get_32 (abfd, ptr))
319 /* Put out word-sized data. */
320 #define MIPS_ELF_PUT_WORD(abfd, val, ptr) \
322 ? bfd_put_64 (abfd, val, ptr) \
323 : bfd_put_32 (abfd, val, ptr))
325 /* Add a dynamic symbol table-entry. */
327 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
328 (ABI_64_P (elf_hash_table (info)->dynobj) \
329 ? bfd_elf64_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val) \
330 : bfd_elf32_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val))
332 #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
333 (ABI_64_P (elf_hash_table (info)->dynobj) \
334 ? (boolean) (abort (), false) \
335 : bfd_elf32_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val))
338 /* The number of local .got entries we reserve. */
339 #define MIPS_RESERVED_GOTNO (2)
341 /* Instructions which appear in a stub. For some reason the stub is
342 slightly different on an SGI system. */
343 #define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000)
344 #define STUB_LW(abfd) \
347 ? 0xdf998010 /* ld t9,0x8010(gp) */ \
348 : 0x8f998010) /* lw t9,0x8010(gp) */ \
349 : 0x8f998010) /* lw t9,0x8000(gp) */
350 #define STUB_MOVE(abfd) \
351 (SGI_COMPAT (abfd) ? 0x03e07825 : 0x03e07821) /* move t7,ra */
352 #define STUB_JALR 0x0320f809 /* jal t9 */
353 #define STUB_LI16(abfd) \
354 (SGI_COMPAT (abfd) ? 0x34180000 : 0x24180000) /* ori t8,zero,0 */
355 #define MIPS_FUNCTION_STUB_SIZE (16)
358 /* We no longer try to identify particular sections for the .dynsym
359 section. When we do, we wind up crashing if there are other random
360 sections with relocations. */
362 /* Names of sections which appear in the .dynsym section in an Irix 5
365 static const char * const mips_elf_dynsym_sec_names[] =
378 #define SIZEOF_MIPS_DYNSYM_SECNAMES \
379 (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0])
381 /* The number of entries in mips_elf_dynsym_sec_names which go in the
384 #define MIPS_TEXT_DYNSYM_SECNO (3)
388 /* The names of the runtime procedure table symbols used on Irix 5. */
390 static const char * const mips_elf_dynsym_rtproc_names[] =
393 "_procedure_string_table",
394 "_procedure_table_size",
398 /* These structures are used to generate the .compact_rel section on
403 unsigned long id1; /* Always one? */
404 unsigned long num; /* Number of compact relocation entries. */
405 unsigned long id2; /* Always two? */
406 unsigned long offset; /* The file offset of the first relocation. */
407 unsigned long reserved0; /* Zero? */
408 unsigned long reserved1; /* Zero? */
417 bfd_byte reserved0[4];
418 bfd_byte reserved1[4];
419 } Elf32_External_compact_rel;
423 unsigned int ctype : 1; /* 1: long 0: short format. See below. */
424 unsigned int rtype : 4; /* Relocation types. See below. */
425 unsigned int dist2to : 8;
426 unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */
427 unsigned long konst; /* KONST field. See below. */
428 unsigned long vaddr; /* VADDR to be relocated. */
433 unsigned int ctype : 1; /* 1: long 0: short format. See below. */
434 unsigned int rtype : 4; /* Relocation types. See below. */
435 unsigned int dist2to : 8;
436 unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */
437 unsigned long konst; /* KONST field. See below. */
445 } Elf32_External_crinfo;
451 } Elf32_External_crinfo2;
453 /* These are the constants used to swap the bitfields in a crinfo. */
455 #define CRINFO_CTYPE (0x1)
456 #define CRINFO_CTYPE_SH (31)
457 #define CRINFO_RTYPE (0xf)
458 #define CRINFO_RTYPE_SH (27)
459 #define CRINFO_DIST2TO (0xff)
460 #define CRINFO_DIST2TO_SH (19)
461 #define CRINFO_RELVADDR (0x7ffff)
462 #define CRINFO_RELVADDR_SH (0)
464 /* A compact relocation info has long (3 words) or short (2 words)
465 formats. A short format doesn't have VADDR field and relvaddr
466 fields contains ((VADDR - vaddr of the previous entry) >> 2). */
467 #define CRF_MIPS_LONG 1
468 #define CRF_MIPS_SHORT 0
470 /* There are 4 types of compact relocation at least. The value KONST
471 has different meaning for each type:
474 CT_MIPS_REL32 Address in data
475 CT_MIPS_WORD Address in word (XXX)
476 CT_MIPS_GPHI_LO GP - vaddr
477 CT_MIPS_JMPAD Address to jump
480 #define CRT_MIPS_REL32 0xa
481 #define CRT_MIPS_WORD 0xb
482 #define CRT_MIPS_GPHI_LO 0xc
483 #define CRT_MIPS_JMPAD 0xd
485 #define mips_elf_set_cr_format(x,format) ((x).ctype = (format))
486 #define mips_elf_set_cr_type(x,type) ((x).rtype = (type))
487 #define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v))
488 #define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2)
490 static void bfd_elf32_swap_compact_rel_out
491 PARAMS ((bfd *, const Elf32_compact_rel *, Elf32_External_compact_rel *));
492 static void bfd_elf32_swap_crinfo_out
493 PARAMS ((bfd *, const Elf32_crinfo *, Elf32_External_crinfo *));
495 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
496 from smaller values. Start with zero, widen, *then* decrement. */
497 #define MINUS_ONE (((bfd_vma)0) - 1)
499 /* The relocation table used for SHT_REL sections. */
501 static reloc_howto_type elf_mips_howto_table_rel[] =
504 HOWTO (R_MIPS_NONE, /* type */
506 0, /* size (0 = byte, 1 = short, 2 = long) */
508 false, /* pc_relative */
510 complain_overflow_dont, /* complain_on_overflow */
511 bfd_elf_generic_reloc, /* special_function */
512 "R_MIPS_NONE", /* name */
513 false, /* partial_inplace */
516 false), /* pcrel_offset */
518 /* 16 bit relocation. */
519 HOWTO (R_MIPS_16, /* type */
521 2, /* size (0 = byte, 1 = short, 2 = long) */
523 false, /* pc_relative */
525 complain_overflow_signed, /* complain_on_overflow */
526 bfd_elf_generic_reloc, /* special_function */
527 "R_MIPS_16", /* name */
528 true, /* partial_inplace */
529 0x0000ffff, /* src_mask */
530 0x0000ffff, /* dst_mask */
531 false), /* pcrel_offset */
533 /* 32 bit relocation. */
534 HOWTO (R_MIPS_32, /* type */
536 2, /* size (0 = byte, 1 = short, 2 = long) */
538 false, /* pc_relative */
540 complain_overflow_dont, /* complain_on_overflow */
541 bfd_elf_generic_reloc, /* special_function */
542 "R_MIPS_32", /* name */
543 true, /* partial_inplace */
544 0xffffffff, /* src_mask */
545 0xffffffff, /* dst_mask */
546 false), /* pcrel_offset */
548 /* 32 bit symbol relative relocation. */
549 HOWTO (R_MIPS_REL32, /* type */
551 2, /* size (0 = byte, 1 = short, 2 = long) */
553 false, /* pc_relative */
555 complain_overflow_dont, /* complain_on_overflow */
556 bfd_elf_generic_reloc, /* special_function */
557 "R_MIPS_REL32", /* name */
558 true, /* partial_inplace */
559 0xffffffff, /* src_mask */
560 0xffffffff, /* dst_mask */
561 false), /* pcrel_offset */
563 /* 26 bit jump address. */
564 HOWTO (R_MIPS_26, /* type */
566 2, /* size (0 = byte, 1 = short, 2 = long) */
568 false, /* pc_relative */
570 complain_overflow_dont, /* complain_on_overflow */
571 /* This needs complex overflow
572 detection, because the upper four
573 bits must match the PC + 4. */
574 bfd_elf_generic_reloc, /* special_function */
575 "R_MIPS_26", /* name */
576 true, /* partial_inplace */
577 0x03ffffff, /* src_mask */
578 0x03ffffff, /* dst_mask */
579 false), /* pcrel_offset */
581 /* High 16 bits of symbol value. */
582 HOWTO (R_MIPS_HI16, /* type */
584 2, /* size (0 = byte, 1 = short, 2 = long) */
586 false, /* pc_relative */
588 complain_overflow_dont, /* complain_on_overflow */
589 _bfd_mips_elf_hi16_reloc, /* special_function */
590 "R_MIPS_HI16", /* name */
591 true, /* partial_inplace */
592 0x0000ffff, /* src_mask */
593 0x0000ffff, /* dst_mask */
594 false), /* pcrel_offset */
596 /* Low 16 bits of symbol value. */
597 HOWTO (R_MIPS_LO16, /* type */
599 2, /* size (0 = byte, 1 = short, 2 = long) */
601 false, /* pc_relative */
603 complain_overflow_dont, /* complain_on_overflow */
604 _bfd_mips_elf_lo16_reloc, /* special_function */
605 "R_MIPS_LO16", /* name */
606 true, /* partial_inplace */
607 0x0000ffff, /* src_mask */
608 0x0000ffff, /* dst_mask */
609 false), /* pcrel_offset */
611 /* GP relative reference. */
612 HOWTO (R_MIPS_GPREL16, /* type */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
616 false, /* pc_relative */
618 complain_overflow_signed, /* complain_on_overflow */
619 _bfd_mips_elf_gprel16_reloc, /* special_function */
620 "R_MIPS_GPREL16", /* name */
621 true, /* partial_inplace */
622 0x0000ffff, /* src_mask */
623 0x0000ffff, /* dst_mask */
624 false), /* pcrel_offset */
626 /* Reference to literal section. */
627 HOWTO (R_MIPS_LITERAL, /* type */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
631 false, /* pc_relative */
633 complain_overflow_signed, /* complain_on_overflow */
634 _bfd_mips_elf_gprel16_reloc, /* special_function */
635 "R_MIPS_LITERAL", /* name */
636 true, /* partial_inplace */
637 0x0000ffff, /* src_mask */
638 0x0000ffff, /* dst_mask */
639 false), /* pcrel_offset */
641 /* Reference to global offset table. */
642 HOWTO (R_MIPS_GOT16, /* type */
644 2, /* size (0 = byte, 1 = short, 2 = long) */
646 false, /* pc_relative */
648 complain_overflow_signed, /* complain_on_overflow */
649 _bfd_mips_elf_got16_reloc, /* special_function */
650 "R_MIPS_GOT16", /* name */
651 true, /* partial_inplace */
652 0x0000ffff, /* src_mask */
653 0x0000ffff, /* dst_mask */
654 false), /* pcrel_offset */
656 /* 16 bit PC relative reference. */
657 HOWTO (R_MIPS_PC16, /* type */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
661 true, /* pc_relative */
663 complain_overflow_signed, /* complain_on_overflow */
664 bfd_elf_generic_reloc, /* special_function */
665 "R_MIPS_PC16", /* name */
666 true, /* partial_inplace */
667 0x0000ffff, /* src_mask */
668 0x0000ffff, /* dst_mask */
669 true), /* pcrel_offset */
671 /* 16 bit call through global offset table. */
672 HOWTO (R_MIPS_CALL16, /* type */
674 2, /* size (0 = byte, 1 = short, 2 = long) */
676 false, /* pc_relative */
678 complain_overflow_signed, /* complain_on_overflow */
679 bfd_elf_generic_reloc, /* special_function */
680 "R_MIPS_CALL16", /* name */
681 true, /* partial_inplace */
682 0x0000ffff, /* src_mask */
683 0x0000ffff, /* dst_mask */
684 false), /* pcrel_offset */
686 /* 32 bit GP relative reference. */
687 HOWTO (R_MIPS_GPREL32, /* type */
689 2, /* size (0 = byte, 1 = short, 2 = long) */
691 false, /* pc_relative */
693 complain_overflow_dont, /* complain_on_overflow */
694 _bfd_mips_elf_gprel32_reloc, /* special_function */
695 "R_MIPS_GPREL32", /* name */
696 true, /* partial_inplace */
697 0xffffffff, /* src_mask */
698 0xffffffff, /* dst_mask */
699 false), /* pcrel_offset */
701 /* The remaining relocs are defined on Irix 5, although they are
702 not defined by the ABI. */
707 /* A 5 bit shift field. */
708 HOWTO (R_MIPS_SHIFT5, /* type */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
712 false, /* pc_relative */
714 complain_overflow_bitfield, /* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_MIPS_SHIFT5", /* name */
717 true, /* partial_inplace */
718 0x000007c0, /* src_mask */
719 0x000007c0, /* dst_mask */
720 false), /* pcrel_offset */
722 /* A 6 bit shift field. */
723 /* FIXME: This is not handled correctly; a special function is
724 needed to put the most significant bit in the right place. */
725 HOWTO (R_MIPS_SHIFT6, /* type */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
729 false, /* pc_relative */
731 complain_overflow_bitfield, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
733 "R_MIPS_SHIFT6", /* name */
734 true, /* partial_inplace */
735 0x000007c4, /* src_mask */
736 0x000007c4, /* dst_mask */
737 false), /* pcrel_offset */
739 /* A 64 bit relocation. */
740 HOWTO (R_MIPS_64, /* type */
742 4, /* size (0 = byte, 1 = short, 2 = long) */
744 false, /* pc_relative */
746 complain_overflow_dont, /* complain_on_overflow */
747 mips32_64bit_reloc, /* special_function */
748 "R_MIPS_64", /* name */
749 true, /* partial_inplace */
750 MINUS_ONE, /* src_mask */
751 MINUS_ONE, /* dst_mask */
752 false), /* pcrel_offset */
754 /* Displacement in the global offset table. */
755 HOWTO (R_MIPS_GOT_DISP, /* type */
757 2, /* size (0 = byte, 1 = short, 2 = long) */
759 false, /* pc_relative */
761 complain_overflow_signed, /* complain_on_overflow */
762 bfd_elf_generic_reloc, /* special_function */
763 "R_MIPS_GOT_DISP", /* name */
764 true, /* partial_inplace */
765 0x0000ffff, /* src_mask */
766 0x0000ffff, /* dst_mask */
767 false), /* pcrel_offset */
769 /* Displacement to page pointer in the global offset table. */
770 HOWTO (R_MIPS_GOT_PAGE, /* type */
772 2, /* size (0 = byte, 1 = short, 2 = long) */
774 false, /* pc_relative */
776 complain_overflow_signed, /* complain_on_overflow */
777 bfd_elf_generic_reloc, /* special_function */
778 "R_MIPS_GOT_PAGE", /* name */
779 true, /* partial_inplace */
780 0x0000ffff, /* src_mask */
781 0x0000ffff, /* dst_mask */
782 false), /* pcrel_offset */
784 /* Offset from page pointer in the global offset table. */
785 HOWTO (R_MIPS_GOT_OFST, /* type */
787 2, /* size (0 = byte, 1 = short, 2 = long) */
789 false, /* pc_relative */
791 complain_overflow_signed, /* complain_on_overflow */
792 bfd_elf_generic_reloc, /* special_function */
793 "R_MIPS_GOT_OFST", /* name */
794 true, /* partial_inplace */
795 0x0000ffff, /* src_mask */
796 0x0000ffff, /* dst_mask */
797 false), /* pcrel_offset */
799 /* High 16 bits of displacement in global offset table. */
800 HOWTO (R_MIPS_GOT_HI16, /* type */
802 2, /* size (0 = byte, 1 = short, 2 = long) */
804 false, /* pc_relative */
806 complain_overflow_dont, /* complain_on_overflow */
807 bfd_elf_generic_reloc, /* special_function */
808 "R_MIPS_GOT_HI16", /* name */
809 true, /* partial_inplace */
810 0x0000ffff, /* src_mask */
811 0x0000ffff, /* dst_mask */
812 false), /* pcrel_offset */
814 /* Low 16 bits of displacement in global offset table. */
815 HOWTO (R_MIPS_GOT_LO16, /* type */
817 2, /* size (0 = byte, 1 = short, 2 = long) */
819 false, /* pc_relative */
821 complain_overflow_dont, /* complain_on_overflow */
822 bfd_elf_generic_reloc, /* special_function */
823 "R_MIPS_GOT_LO16", /* name */
824 true, /* partial_inplace */
825 0x0000ffff, /* src_mask */
826 0x0000ffff, /* dst_mask */
827 false), /* pcrel_offset */
829 /* 64 bit subtraction. Used in the N32 ABI. */
830 HOWTO (R_MIPS_SUB, /* type */
832 4, /* size (0 = byte, 1 = short, 2 = long) */
834 false, /* pc_relative */
836 complain_overflow_dont, /* complain_on_overflow */
837 bfd_elf_generic_reloc, /* special_function */
838 "R_MIPS_SUB", /* name */
839 true, /* partial_inplace */
840 MINUS_ONE, /* src_mask */
841 MINUS_ONE, /* dst_mask */
842 false), /* pcrel_offset */
844 /* Used to cause the linker to insert and delete instructions? */
845 EMPTY_HOWTO (R_MIPS_INSERT_A),
846 EMPTY_HOWTO (R_MIPS_INSERT_B),
847 EMPTY_HOWTO (R_MIPS_DELETE),
849 /* Get the higher value of a 64 bit addend. */
850 HOWTO (R_MIPS_HIGHER, /* type */
852 2, /* size (0 = byte, 1 = short, 2 = long) */
854 false, /* pc_relative */
856 complain_overflow_dont, /* complain_on_overflow */
857 bfd_elf_generic_reloc, /* special_function */
858 "R_MIPS_HIGHER", /* name */
859 true, /* partial_inplace */
860 0x0000ffff, /* src_mask */
861 0x0000ffff, /* dst_mask */
862 false), /* pcrel_offset */
864 /* Get the highest value of a 64 bit addend. */
865 HOWTO (R_MIPS_HIGHEST, /* type */
867 2, /* size (0 = byte, 1 = short, 2 = long) */
869 false, /* pc_relative */
871 complain_overflow_dont, /* complain_on_overflow */
872 bfd_elf_generic_reloc, /* special_function */
873 "R_MIPS_HIGHEST", /* name */
874 true, /* partial_inplace */
875 0x0000ffff, /* src_mask */
876 0x0000ffff, /* dst_mask */
877 false), /* pcrel_offset */
879 /* High 16 bits of displacement in global offset table. */
880 HOWTO (R_MIPS_CALL_HI16, /* type */
882 2, /* size (0 = byte, 1 = short, 2 = long) */
884 false, /* pc_relative */
886 complain_overflow_dont, /* complain_on_overflow */
887 bfd_elf_generic_reloc, /* special_function */
888 "R_MIPS_CALL_HI16", /* name */
889 true, /* partial_inplace */
890 0x0000ffff, /* src_mask */
891 0x0000ffff, /* dst_mask */
892 false), /* pcrel_offset */
894 /* Low 16 bits of displacement in global offset table. */
895 HOWTO (R_MIPS_CALL_LO16, /* type */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
899 false, /* pc_relative */
901 complain_overflow_dont, /* complain_on_overflow */
902 bfd_elf_generic_reloc, /* special_function */
903 "R_MIPS_CALL_LO16", /* name */
904 true, /* partial_inplace */
905 0x0000ffff, /* src_mask */
906 0x0000ffff, /* dst_mask */
907 false), /* pcrel_offset */
909 /* Section displacement. */
910 HOWTO (R_MIPS_SCN_DISP, /* type */
912 2, /* 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_SCN_DISP", /* name */
919 true, /* partial_inplace */
920 0xffffffff, /* src_mask */
921 0xffffffff, /* dst_mask */
922 false), /* pcrel_offset */
924 EMPTY_HOWTO (R_MIPS_REL16),
925 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
926 EMPTY_HOWTO (R_MIPS_PJUMP),
927 EMPTY_HOWTO (R_MIPS_RELGOT),
929 /* Protected jump conversion. This is an optimization hint. No
930 relocation is required for correctness. */
931 HOWTO (R_MIPS_JALR, /* type */
933 2, /* size (0 = byte, 1 = short, 2 = long) */
935 false, /* pc_relative */
937 complain_overflow_dont, /* complain_on_overflow */
938 bfd_elf_generic_reloc, /* special_function */
939 "R_MIPS_JALR", /* name */
940 false, /* partial_inplace */
941 0x00000000, /* src_mask */
942 0x00000000, /* dst_mask */
943 false), /* pcrel_offset */
946 /* The relocation table used for SHT_RELA sections. */
948 static reloc_howto_type elf_mips_howto_table_rela[] =
951 HOWTO (R_MIPS_NONE, /* type */
953 0, /* size (0 = byte, 1 = short, 2 = long) */
955 false, /* pc_relative */
957 complain_overflow_dont, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_MIPS_NONE", /* name */
960 false, /* partial_inplace */
963 false), /* pcrel_offset */
965 /* 16 bit relocation. */
966 HOWTO (R_MIPS_16, /* type */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
970 false, /* pc_relative */
972 complain_overflow_signed, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_MIPS_16", /* name */
975 false, /* partial_inplace */
977 0x0000, /* dst_mask */
978 false), /* pcrel_offset */
980 /* 32 bit relocation. */
981 HOWTO (R_MIPS_32, /* type */
983 2, /* size (0 = byte, 1 = short, 2 = long) */
985 false, /* pc_relative */
987 complain_overflow_dont, /* complain_on_overflow */
988 bfd_elf_generic_reloc, /* special_function */
989 "R_MIPS_32", /* name */
990 false, /* partial_inplace */
992 0xffffffff, /* dst_mask */
993 false), /* pcrel_offset */
995 /* 32 bit symbol relative relocation. */
996 HOWTO (R_MIPS_REL32, /* type */
998 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 false, /* pc_relative */
1002 complain_overflow_dont, /* complain_on_overflow */
1003 bfd_elf_generic_reloc, /* special_function */
1004 "R_MIPS_REL32", /* name */
1005 false, /* partial_inplace */
1007 0xffffffff, /* dst_mask */
1008 false), /* pcrel_offset */
1010 /* 26 bit jump address. */
1011 HOWTO (R_MIPS_26, /* type */
1013 2, /* size (0 = byte, 1 = short, 2 = long) */
1015 false, /* pc_relative */
1017 complain_overflow_dont, /* complain_on_overflow */
1018 /* This needs complex overflow
1019 detection, because the upper 36
1020 bits must match the PC + 4. */
1021 bfd_elf_generic_reloc, /* special_function */
1022 "R_MIPS_26", /* name */
1023 false, /* partial_inplace */
1025 0x03ffffff, /* dst_mask */
1026 false), /* pcrel_offset */
1028 /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for 64 bit REL. */
1029 /* High 16 bits of symbol value. */
1030 HOWTO (R_MIPS_HI16, /* type */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 false, /* pc_relative */
1036 complain_overflow_dont, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_MIPS_HI16", /* name */
1039 false, /* partial_inplace */
1041 0x0000ffff, /* dst_mask */
1042 false), /* pcrel_offset */
1044 /* Low 16 bits of symbol value. */
1045 HOWTO (R_MIPS_LO16, /* type */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 false, /* pc_relative */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_MIPS_LO16", /* name */
1054 false, /* partial_inplace */
1056 0x0000ffff, /* dst_mask */
1057 false), /* pcrel_offset */
1059 /* GP relative reference. */
1060 HOWTO (R_MIPS_GPREL16, /* type */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 false, /* pc_relative */
1066 complain_overflow_signed, /* complain_on_overflow */
1067 _bfd_mips_elf_gprel16_reloc, /* special_function */
1068 "R_MIPS_GPREL16", /* name */
1069 false, /* partial_inplace */
1071 0x0000ffff, /* dst_mask */
1072 false), /* pcrel_offset */
1074 /* Reference to literal section. */
1075 HOWTO (R_MIPS_LITERAL, /* type */
1077 2, /* size (0 = byte, 1 = short, 2 = long) */
1079 false, /* pc_relative */
1081 complain_overflow_signed, /* complain_on_overflow */
1082 _bfd_mips_elf_gprel16_reloc, /* special_function */
1083 "R_MIPS_LITERAL", /* name */
1084 false, /* partial_inplace */
1086 0x0000ffff, /* dst_mask */
1087 false), /* pcrel_offset */
1089 /* Reference to global offset table. */
1090 /* FIXME: This is not handled correctly. */
1091 HOWTO (R_MIPS_GOT16, /* type */
1093 2, /* size (0 = byte, 1 = short, 2 = long) */
1095 false, /* pc_relative */
1097 complain_overflow_signed, /* complain_on_overflow */
1098 bfd_elf_generic_reloc, /* special_function */
1099 "R_MIPS_GOT16", /* name */
1100 false, /* partial_inplace */
1102 0x0000ffff, /* dst_mask */
1103 false), /* pcrel_offset */
1105 /* 16 bit PC relative reference. */
1106 HOWTO (R_MIPS_PC16, /* type */
1108 2, /* size (0 = byte, 1 = short, 2 = long) */
1110 true, /* pc_relative */
1112 complain_overflow_signed, /* complain_on_overflow */
1113 bfd_elf_generic_reloc, /* special_function */
1114 "R_MIPS_PC16", /* name */
1115 false, /* partial_inplace */
1117 0x0000ffff, /* dst_mask */
1118 true), /* pcrel_offset */
1120 /* 16 bit call through global offset table. */
1121 /* FIXME: This is not handled correctly. */
1122 HOWTO (R_MIPS_CALL16, /* type */
1124 2, /* size (0 = byte, 1 = short, 2 = long) */
1126 false, /* pc_relative */
1128 complain_overflow_signed, /* complain_on_overflow */
1129 bfd_elf_generic_reloc, /* special_function */
1130 "R_MIPS_CALL16", /* name */
1131 false, /* partial_inplace */
1133 0x0000ffff, /* dst_mask */
1134 false), /* pcrel_offset */
1136 /* 32 bit GP relative reference. */
1137 HOWTO (R_MIPS_GPREL32, /* type */
1139 2, /* size (0 = byte, 1 = short, 2 = long) */
1141 false, /* pc_relative */
1143 complain_overflow_dont, /* complain_on_overflow */
1144 _bfd_mips_elf_gprel32_reloc, /* special_function */
1145 "R_MIPS_GPREL32", /* name */
1146 false, /* partial_inplace */
1148 0xffffffff, /* dst_mask */
1149 false), /* pcrel_offset */
1155 /* A 5 bit shift field. */
1156 HOWTO (R_MIPS_SHIFT5, /* type */
1158 2, /* size (0 = byte, 1 = short, 2 = long) */
1160 false, /* pc_relative */
1162 complain_overflow_bitfield, /* complain_on_overflow */
1163 bfd_elf_generic_reloc, /* special_function */
1164 "R_MIPS_SHIFT5", /* name */
1165 false, /* partial_inplace */
1167 0x000007c0, /* dst_mask */
1168 false), /* pcrel_offset */
1170 /* A 6 bit shift field. */
1171 /* FIXME: Not handled correctly. */
1172 HOWTO (R_MIPS_SHIFT6, /* type */
1174 2, /* size (0 = byte, 1 = short, 2 = long) */
1176 false, /* pc_relative */
1178 complain_overflow_bitfield, /* complain_on_overflow */
1179 bfd_elf_generic_reloc, /* special_function */
1180 "R_MIPS_SHIFT6", /* name */
1181 false, /* partial_inplace */
1183 0x000007c4, /* dst_mask */
1184 false), /* pcrel_offset */
1186 /* 64 bit relocation. */
1187 HOWTO (R_MIPS_64, /* type */
1189 4, /* size (0 = byte, 1 = short, 2 = long) */
1191 false, /* pc_relative */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 bfd_elf_generic_reloc, /* special_function */
1195 "R_MIPS_64", /* name */
1196 false, /* partial_inplace */
1198 MINUS_ONE, /* dst_mask */
1199 false), /* pcrel_offset */
1201 /* Displacement in the global offset table. */
1202 /* FIXME: Not handled correctly. */
1203 HOWTO (R_MIPS_GOT_DISP, /* type */
1205 2, /* size (0 = byte, 1 = short, 2 = long) */
1207 false, /* pc_relative */
1209 complain_overflow_signed, /* complain_on_overflow */
1210 bfd_elf_generic_reloc, /* special_function */
1211 "R_MIPS_GOT_DISP", /* name */
1212 false, /* partial_inplace */
1214 0x0000ffff, /* dst_mask */
1215 false), /* pcrel_offset */
1217 /* Displacement to page pointer in the global offset table. */
1218 /* FIXME: Not handled correctly. */
1219 HOWTO (R_MIPS_GOT_PAGE, /* type */
1221 2, /* size (0 = byte, 1 = short, 2 = long) */
1223 false, /* pc_relative */
1225 complain_overflow_signed, /* complain_on_overflow */
1226 bfd_elf_generic_reloc, /* special_function */
1227 "R_MIPS_GOT_PAGE", /* name */
1228 false, /* partial_inplace */
1230 0x0000ffff, /* dst_mask */
1231 false), /* pcrel_offset */
1233 /* Offset from page pointer in the global offset table. */
1234 /* FIXME: Not handled correctly. */
1235 HOWTO (R_MIPS_GOT_OFST, /* type */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 false, /* pc_relative */
1241 complain_overflow_signed, /* complain_on_overflow */
1242 bfd_elf_generic_reloc, /* special_function */
1243 "R_MIPS_GOT_OFST", /* name */
1244 false, /* partial_inplace */
1246 0x0000ffff, /* dst_mask */
1247 false), /* pcrel_offset */
1249 /* High 16 bits of displacement in global offset table. */
1250 /* FIXME: Not handled correctly. */
1251 HOWTO (R_MIPS_GOT_HI16, /* type */
1253 2, /* size (0 = byte, 1 = short, 2 = long) */
1255 false, /* pc_relative */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 bfd_elf_generic_reloc, /* special_function */
1259 "R_MIPS_GOT_HI16", /* name */
1260 false, /* partial_inplace */
1262 0x0000ffff, /* dst_mask */
1263 false), /* pcrel_offset */
1265 /* Low 16 bits of displacement in global offset table. */
1266 /* FIXME: Not handled correctly. */
1267 HOWTO (R_MIPS_GOT_LO16, /* type */
1269 2, /* size (0 = byte, 1 = short, 2 = long) */
1271 false, /* pc_relative */
1273 complain_overflow_dont, /* complain_on_overflow */
1274 bfd_elf_generic_reloc, /* special_function */
1275 "R_MIPS_GOT_LO16", /* name */
1276 false, /* partial_inplace */
1278 0x0000ffff, /* dst_mask */
1279 false), /* pcrel_offset */
1281 /* 64 bit substraction. */
1282 /* FIXME: Not handled correctly. */
1283 HOWTO (R_MIPS_SUB, /* type */
1285 4, /* size (0 = byte, 1 = short, 2 = long) */
1287 false, /* pc_relative */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 bfd_elf_generic_reloc, /* special_function */
1291 "R_MIPS_SUB", /* name */
1292 false, /* partial_inplace */
1294 MINUS_ONE, /* dst_mask */
1295 false), /* pcrel_offset */
1297 /* Insert the addend as an instruction. */
1298 /* FIXME: Not handled correctly. */
1299 HOWTO (R_MIPS_INSERT_A, /* type */
1301 2, /* size (0 = byte, 1 = short, 2 = long) */
1303 false, /* pc_relative */
1305 complain_overflow_dont, /* complain_on_overflow */
1306 bfd_elf_generic_reloc, /* special_function */
1307 "R_MIPS_INSERT_A", /* name */
1308 false, /* partial_inplace */
1310 0xffffffff, /* dst_mask */
1311 false), /* pcrel_offset */
1313 /* Insert the addend as an instruction, and change all relocations
1314 to refer to the old instruction at the address. */
1315 /* FIXME: Not handled correctly. */
1316 HOWTO (R_MIPS_INSERT_B, /* type */
1318 2, /* size (0 = byte, 1 = short, 2 = long) */
1320 false, /* pc_relative */
1322 complain_overflow_dont, /* complain_on_overflow */
1323 bfd_elf_generic_reloc, /* special_function */
1324 "R_MIPS_INSERT_B", /* name */
1325 false, /* partial_inplace */
1327 0xffffffff, /* dst_mask */
1328 false), /* pcrel_offset */
1330 /* Delete a 32 bit instruction. */
1331 /* FIXME: Not handled correctly. */
1332 HOWTO (R_MIPS_DELETE, /* type */
1334 2, /* size (0 = byte, 1 = short, 2 = long) */
1336 false, /* pc_relative */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 bfd_elf_generic_reloc, /* special_function */
1340 "R_MIPS_DELETE", /* name */
1341 false, /* partial_inplace */
1343 0xffffffff, /* dst_mask */
1344 false), /* pcrel_offset */
1346 /* Get the higher value of a 64 bit addend. */
1347 HOWTO (R_MIPS_HIGHER, /* type */
1349 2, /* size (0 = byte, 1 = short, 2 = long) */
1351 false, /* pc_relative */
1353 complain_overflow_dont, /* complain_on_overflow */
1354 bfd_elf_generic_reloc, /* special_function */
1355 "R_MIPS_HIGHER", /* name */
1356 false, /* partial_inplace */
1358 0x0000ffff, /* dst_mask */
1359 false), /* pcrel_offset */
1361 /* Get the highest value of a 64 bit addend. */
1362 HOWTO (R_MIPS_HIGHEST, /* type */
1364 2, /* size (0 = byte, 1 = short, 2 = long) */
1366 false, /* pc_relative */
1368 complain_overflow_dont, /* complain_on_overflow */
1369 bfd_elf_generic_reloc, /* special_function */
1370 "R_MIPS_HIGHEST", /* name */
1371 false, /* partial_inplace */
1373 0x0000ffff, /* dst_mask */
1374 false), /* pcrel_offset */
1376 /* High 16 bits of displacement in global offset table. */
1377 /* FIXME: Not handled correctly. */
1378 HOWTO (R_MIPS_CALL_HI16, /* type */
1380 2, /* size (0 = byte, 1 = short, 2 = long) */
1382 false, /* pc_relative */
1384 complain_overflow_dont, /* complain_on_overflow */
1385 bfd_elf_generic_reloc, /* special_function */
1386 "R_MIPS_CALL_HI16", /* name */
1387 false, /* partial_inplace */
1389 0x0000ffff, /* dst_mask */
1390 false), /* pcrel_offset */
1392 /* Low 16 bits of displacement in global offset table. */
1393 /* FIXME: Not handled correctly. */
1394 HOWTO (R_MIPS_CALL_LO16, /* type */
1396 2, /* size (0 = byte, 1 = short, 2 = long) */
1398 false, /* pc_relative */
1400 complain_overflow_dont, /* complain_on_overflow */
1401 bfd_elf_generic_reloc, /* special_function */
1402 "R_MIPS_CALL_LO16", /* name */
1403 false, /* partial_inplace */
1405 0x0000ffff, /* dst_mask */
1406 false), /* pcrel_offset */
1408 /* Section displacement, used by an associated event location section. */
1409 /* FIXME: Not handled correctly. */
1410 HOWTO (R_MIPS_SCN_DISP, /* type */
1412 2, /* size (0 = byte, 1 = short, 2 = long) */
1414 false, /* pc_relative */
1416 complain_overflow_dont, /* complain_on_overflow */
1417 bfd_elf_generic_reloc, /* special_function */
1418 "R_MIPS_SCN_DISP", /* name */
1419 false, /* partial_inplace */
1421 0xffffffff, /* dst_mask */
1422 false), /* pcrel_offset */
1424 HOWTO (R_MIPS_REL16, /* type */
1426 1, /* size (0 = byte, 1 = short, 2 = long) */
1428 false, /* pc_relative */
1430 complain_overflow_signed, /* complain_on_overflow */
1431 bfd_elf_generic_reloc, /* special_function */
1432 "R_MIPS_REL16", /* name */
1433 false, /* partial_inplace */
1435 0xffff, /* dst_mask */
1436 false), /* pcrel_offset */
1438 /* These two are obsolete. */
1439 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
1440 EMPTY_HOWTO (R_MIPS_PJUMP),
1442 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
1443 It must be used for multigot GOT's (and only there). */
1444 HOWTO (R_MIPS_RELGOT, /* type */
1446 2, /* size (0 = byte, 1 = short, 2 = long) */
1448 false, /* pc_relative */
1450 complain_overflow_dont, /* complain_on_overflow */
1451 bfd_elf_generic_reloc, /* special_function */
1452 "R_MIPS_RELGOT", /* name */
1453 false, /* partial_inplace */
1455 0xffffffff, /* dst_mask */
1456 false), /* pcrel_offset */
1458 /* Protected jump conversion. This is an optimization hint. No
1459 relocation is required for correctness. */
1460 HOWTO (R_MIPS_JALR, /* type */
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
1464 false, /* pc_relative */
1466 complain_overflow_dont, /* complain_on_overflow */
1467 bfd_elf_generic_reloc, /* special_function */
1468 "R_MIPS_JALR", /* name */
1469 false, /* partial_inplace */
1471 0xffffffff, /* dst_mask */
1472 false), /* pcrel_offset */
1475 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
1476 is a hack to make the linker think that we need 64 bit values. */
1477 static reloc_howto_type elf_mips_ctor64_howto =
1478 HOWTO (R_MIPS_64, /* type */
1480 4, /* size (0 = byte, 1 = short, 2 = long) */
1482 false, /* pc_relative */
1484 complain_overflow_signed, /* complain_on_overflow */
1485 mips32_64bit_reloc, /* special_function */
1486 "R_MIPS_64", /* name */
1487 true, /* partial_inplace */
1488 0xffffffff, /* src_mask */
1489 0xffffffff, /* dst_mask */
1490 false); /* pcrel_offset */
1492 /* The reloc used for the mips16 jump instruction. */
1493 static reloc_howto_type elf_mips16_jump_howto =
1494 HOWTO (R_MIPS16_26, /* type */
1496 2, /* size (0 = byte, 1 = short, 2 = long) */
1498 false, /* pc_relative */
1500 complain_overflow_dont, /* complain_on_overflow */
1501 /* This needs complex overflow
1502 detection, because the upper four
1503 bits must match the PC. */
1504 mips16_jump_reloc, /* special_function */
1505 "R_MIPS16_26", /* name */
1506 true, /* partial_inplace */
1507 0x3ffffff, /* src_mask */
1508 0x3ffffff, /* dst_mask */
1509 false); /* pcrel_offset */
1511 /* The reloc used for the mips16 gprel instruction. */
1512 static reloc_howto_type elf_mips16_gprel_howto =
1513 HOWTO (R_MIPS16_GPREL, /* type */
1515 2, /* size (0 = byte, 1 = short, 2 = long) */
1517 false, /* pc_relative */
1519 complain_overflow_signed, /* complain_on_overflow */
1520 mips16_gprel_reloc, /* special_function */
1521 "R_MIPS16_GPREL", /* name */
1522 true, /* partial_inplace */
1523 0x07ff001f, /* src_mask */
1524 0x07ff001f, /* dst_mask */
1525 false); /* pcrel_offset */
1527 /* GNU extensions for embedded-pic. */
1528 /* High 16 bits of symbol value, pc-relative. */
1529 static reloc_howto_type elf_mips_gnu_rel_hi16 =
1530 HOWTO (R_MIPS_GNU_REL_HI16, /* type */
1532 2, /* size (0 = byte, 1 = short, 2 = long) */
1534 true, /* pc_relative */
1536 complain_overflow_dont, /* complain_on_overflow */
1537 _bfd_mips_elf_hi16_reloc, /* special_function */
1538 "R_MIPS_GNU_REL_HI16", /* name */
1539 true, /* partial_inplace */
1540 0xffff, /* src_mask */
1541 0xffff, /* dst_mask */
1542 true); /* pcrel_offset */
1544 /* Low 16 bits of symbol value, pc-relative. */
1545 static reloc_howto_type elf_mips_gnu_rel_lo16 =
1546 HOWTO (R_MIPS_GNU_REL_LO16, /* type */
1548 2, /* size (0 = byte, 1 = short, 2 = long) */
1550 true, /* pc_relative */
1552 complain_overflow_dont, /* complain_on_overflow */
1553 _bfd_mips_elf_lo16_reloc, /* special_function */
1554 "R_MIPS_GNU_REL_LO16", /* name */
1555 true, /* partial_inplace */
1556 0xffff, /* src_mask */
1557 0xffff, /* dst_mask */
1558 true); /* pcrel_offset */
1560 /* 16 bit offset for pc-relative branches. */
1561 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1562 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1564 2, /* size (0 = byte, 1 = short, 2 = long) */
1566 true, /* pc_relative */
1568 complain_overflow_signed, /* complain_on_overflow */
1569 bfd_elf_generic_reloc, /* special_function */
1570 "R_MIPS_GNU_REL16_S2", /* name */
1571 true, /* partial_inplace */
1572 0xffff, /* src_mask */
1573 0xffff, /* dst_mask */
1574 true); /* pcrel_offset */
1576 /* 64 bit pc-relative. */
1577 static reloc_howto_type elf_mips_gnu_pcrel64 =
1578 HOWTO (R_MIPS_PC64, /* type */
1580 4, /* size (0 = byte, 1 = short, 2 = long) */
1582 true, /* pc_relative */
1584 complain_overflow_signed, /* complain_on_overflow */
1585 bfd_elf_generic_reloc, /* special_function */
1586 "R_MIPS_PC64", /* name */
1587 true, /* partial_inplace */
1588 MINUS_ONE, /* src_mask */
1589 MINUS_ONE, /* dst_mask */
1590 true); /* pcrel_offset */
1592 /* 32 bit pc-relative. */
1593 static reloc_howto_type elf_mips_gnu_pcrel32 =
1594 HOWTO (R_MIPS_PC32, /* type */
1596 2, /* size (0 = byte, 1 = short, 2 = long) */
1598 true, /* pc_relative */
1600 complain_overflow_signed, /* complain_on_overflow */
1601 bfd_elf_generic_reloc, /* special_function */
1602 "R_MIPS_PC32", /* name */
1603 true, /* partial_inplace */
1604 0xffffffff, /* src_mask */
1605 0xffffffff, /* dst_mask */
1606 true); /* pcrel_offset */
1608 /* GNU extension to record C++ vtable hierarchy */
1609 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1610 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1612 2, /* size (0 = byte, 1 = short, 2 = long) */
1614 false, /* pc_relative */
1616 complain_overflow_dont, /* complain_on_overflow */
1617 NULL, /* special_function */
1618 "R_MIPS_GNU_VTINHERIT", /* name */
1619 false, /* partial_inplace */
1622 false); /* pcrel_offset */
1624 /* GNU extension to record C++ vtable member usage */
1625 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1626 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1628 2, /* size (0 = byte, 1 = short, 2 = long) */
1630 false, /* pc_relative */
1632 complain_overflow_dont, /* complain_on_overflow */
1633 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1634 "R_MIPS_GNU_VTENTRY", /* name */
1635 false, /* partial_inplace */
1638 false); /* pcrel_offset */
1640 /* Do a R_MIPS_HI16 relocation. This has to be done in combination
1641 with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to
1642 the HI16. Here we just save the information we need; we do the
1643 actual relocation when we see the LO16. MIPS ELF requires that the
1644 LO16 immediately follow the HI16. As a GNU extension, we permit an
1645 arbitrary number of HI16 relocs to be associated with a single LO16
1646 reloc. This extension permits gcc to output the HI and LO relocs
1651 struct mips_hi16 *next;
1656 /* FIXME: This should not be a static variable. */
1658 static struct mips_hi16 *mips_hi16_list;
1660 bfd_reloc_status_type
1661 _bfd_mips_elf_hi16_reloc (abfd,
1668 bfd *abfd ATTRIBUTE_UNUSED;
1669 arelent *reloc_entry;
1672 asection *input_section;
1674 char **error_message;
1676 bfd_reloc_status_type ret;
1678 struct mips_hi16 *n;
1680 /* If we're relocating, and this an external symbol, we don't want
1681 to change anything. */
1682 if (output_bfd != (bfd *) NULL
1683 && (symbol->flags & BSF_SECTION_SYM) == 0
1684 && reloc_entry->addend == 0)
1686 reloc_entry->address += input_section->output_offset;
1687 return bfd_reloc_ok;
1692 if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1694 boolean relocateable;
1697 if (ret == bfd_reloc_undefined)
1700 if (output_bfd != NULL)
1701 relocateable = true;
1704 relocateable = false;
1705 output_bfd = symbol->section->output_section->owner;
1708 ret = mips_elf_final_gp (output_bfd, symbol, relocateable,
1709 error_message, &gp);
1710 if (ret != bfd_reloc_ok)
1713 relocation = gp - reloc_entry->address;
1717 if (bfd_is_und_section (symbol->section)
1718 && output_bfd == (bfd *) NULL)
1719 ret = bfd_reloc_undefined;
1721 if (bfd_is_com_section (symbol->section))
1724 relocation = symbol->value;
1727 relocation += symbol->section->output_section->vma;
1728 relocation += symbol->section->output_offset;
1729 relocation += reloc_entry->addend;
1730 if (reloc_entry->howto->pc_relative)
1731 relocation -= reloc_entry->address;
1733 if (reloc_entry->address > input_section->_cooked_size)
1734 return bfd_reloc_outofrange;
1736 /* Save the information, and let LO16 do the actual relocation. */
1737 n = (struct mips_hi16 *) bfd_malloc ((bfd_size_type) sizeof *n);
1739 return bfd_reloc_outofrange;
1740 n->addr = (bfd_byte *) data + reloc_entry->address;
1741 n->addend = relocation;
1742 n->next = mips_hi16_list;
1745 if (output_bfd != (bfd *) NULL)
1746 reloc_entry->address += input_section->output_offset;
1751 /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit
1752 inplace relocation; this function exists in order to do the
1753 R_MIPS_HI16 relocation described above. */
1755 bfd_reloc_status_type
1756 _bfd_mips_elf_lo16_reloc (abfd,
1764 arelent *reloc_entry;
1767 asection *input_section;
1769 char **error_message;
1771 arelent gp_disp_relent;
1773 if (mips_hi16_list != NULL)
1775 struct mips_hi16 *l;
1782 unsigned long vallo;
1783 struct mips_hi16 *next;
1785 /* Do the HI16 relocation. Note that we actually don't need
1786 to know anything about the LO16 itself, except where to
1787 find the low 16 bits of the addend needed by the LO16. */
1788 insn = bfd_get_32 (abfd, l->addr);
1789 vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
1791 val = ((insn & 0xffff) << 16) + vallo;
1794 /* The low order 16 bits are always treated as a signed
1795 value. Therefore, a negative value in the low order bits
1796 requires an adjustment in the high order bits. We need
1797 to make this adjustment in two ways: once for the bits we
1798 took from the data, and once for the bits we are putting
1799 back in to the data. */
1800 if ((vallo & 0x8000) != 0)
1802 if ((val & 0x8000) != 0)
1805 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
1806 bfd_put_32 (abfd, (bfd_vma) insn, l->addr);
1808 if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1810 gp_disp_relent = *reloc_entry;
1811 reloc_entry = &gp_disp_relent;
1812 reloc_entry->addend = l->addend;
1820 mips_hi16_list = NULL;
1822 else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1824 bfd_reloc_status_type ret;
1825 bfd_vma gp, relocation;
1827 /* FIXME: Does this case ever occur? */
1829 ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp);
1830 if (ret != bfd_reloc_ok)
1833 relocation = gp - reloc_entry->address;
1834 relocation += symbol->section->output_section->vma;
1835 relocation += symbol->section->output_offset;
1836 relocation += reloc_entry->addend;
1838 if (reloc_entry->address > input_section->_cooked_size)
1839 return bfd_reloc_outofrange;
1841 gp_disp_relent = *reloc_entry;
1842 reloc_entry = &gp_disp_relent;
1843 reloc_entry->addend = relocation - 4;
1846 /* Now do the LO16 reloc in the usual way. */
1847 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1848 input_section, output_bfd, error_message);
1851 /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset
1852 table used for PIC code. If the symbol is an external symbol, the
1853 instruction is modified to contain the offset of the appropriate
1854 entry in the global offset table. If the symbol is a section
1855 symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit
1856 addends are combined to form the real addend against the section
1857 symbol; the GOT16 is modified to contain the offset of an entry in
1858 the global offset table, and the LO16 is modified to offset it
1859 appropriately. Thus an offset larger than 16 bits requires a
1860 modified value in the global offset table.
1862 This implementation suffices for the assembler, but the linker does
1863 not yet know how to create global offset tables. */
1865 bfd_reloc_status_type
1866 _bfd_mips_elf_got16_reloc (abfd,
1874 arelent *reloc_entry;
1877 asection *input_section;
1879 char **error_message;
1881 /* If we're relocating, and this an external symbol, we don't want
1882 to change anything. */
1883 if (output_bfd != (bfd *) NULL
1884 && (symbol->flags & BSF_SECTION_SYM) == 0
1885 && reloc_entry->addend == 0)
1887 reloc_entry->address += input_section->output_offset;
1888 return bfd_reloc_ok;
1891 /* If we're relocating, and this is a local symbol, we can handle it
1893 if (output_bfd != (bfd *) NULL
1894 && (symbol->flags & BSF_SECTION_SYM) != 0)
1895 return _bfd_mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data,
1896 input_section, output_bfd, error_message);
1901 /* Set the GP value for OUTPUT_BFD. Returns false if this is a
1902 dangerous relocation. */
1905 mips_elf_assign_gp (output_bfd, pgp)
1913 /* If we've already figured out what GP will be, just return it. */
1914 *pgp = _bfd_get_gp_value (output_bfd);
1918 count = bfd_get_symcount (output_bfd);
1919 sym = bfd_get_outsymbols (output_bfd);
1921 /* The linker script will have created a symbol named `_gp' with the
1922 appropriate value. */
1923 if (sym == (asymbol **) NULL)
1927 for (i = 0; i < count; i++, sym++)
1929 register const char *name;
1931 name = bfd_asymbol_name (*sym);
1932 if (*name == '_' && strcmp (name, "_gp") == 0)
1934 *pgp = bfd_asymbol_value (*sym);
1935 _bfd_set_gp_value (output_bfd, *pgp);
1943 /* Only get the error once. */
1945 _bfd_set_gp_value (output_bfd, *pgp);
1952 /* We have to figure out the gp value, so that we can adjust the
1953 symbol value correctly. We look up the symbol _gp in the output
1954 BFD. If we can't find it, we're stuck. We cache it in the ELF
1955 target data. We don't need to adjust the symbol value for an
1956 external symbol if we are producing relocateable output. */
1958 static bfd_reloc_status_type
1959 mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp)
1962 boolean relocateable;
1963 char **error_message;
1966 if (bfd_is_und_section (symbol->section)
1970 return bfd_reloc_undefined;
1973 *pgp = _bfd_get_gp_value (output_bfd);
1976 || (symbol->flags & BSF_SECTION_SYM) != 0))
1980 /* Make up a value. */
1981 *pgp = symbol->section->output_section->vma + 0x4000;
1982 _bfd_set_gp_value (output_bfd, *pgp);
1984 else if (!mips_elf_assign_gp (output_bfd, pgp))
1987 (char *) _("GP relative relocation when _gp not defined");
1988 return bfd_reloc_dangerous;
1992 return bfd_reloc_ok;
1995 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1996 become the offset from the gp register. This function also handles
1997 R_MIPS_LITERAL relocations, although those can be handled more
1998 cleverly because the entries in the .lit8 and .lit4 sections can be
2001 static bfd_reloc_status_type gprel16_with_gp PARAMS ((bfd *, asymbol *,
2002 arelent *, asection *,
2003 boolean, PTR, bfd_vma));
2005 bfd_reloc_status_type
2006 _bfd_mips_elf_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section,
2007 output_bfd, error_message)
2009 arelent *reloc_entry;
2012 asection *input_section;
2014 char **error_message;
2016 boolean relocateable;
2017 bfd_reloc_status_type ret;
2020 /* If we're relocating, and this is an external symbol with no
2021 addend, we don't want to change anything. We will only have an
2022 addend if this is a newly created reloc, not read from an ELF
2024 if (output_bfd != (bfd *) NULL
2025 && (symbol->flags & BSF_SECTION_SYM) == 0
2026 && reloc_entry->addend == 0)
2028 reloc_entry->address += input_section->output_offset;
2029 return bfd_reloc_ok;
2032 if (output_bfd != (bfd *) NULL)
2033 relocateable = true;
2036 relocateable = false;
2037 output_bfd = symbol->section->output_section->owner;
2040 ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message,
2042 if (ret != bfd_reloc_ok)
2045 return gprel16_with_gp (abfd, symbol, reloc_entry, input_section,
2046 relocateable, data, gp);
2049 static bfd_reloc_status_type
2050 gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data,
2054 arelent *reloc_entry;
2055 asection *input_section;
2056 boolean relocateable;
2064 if (bfd_is_com_section (symbol->section))
2067 relocation = symbol->value;
2069 relocation += symbol->section->output_section->vma;
2070 relocation += symbol->section->output_offset;
2072 if (reloc_entry->address > input_section->_cooked_size)
2073 return bfd_reloc_outofrange;
2075 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2077 /* Set val to the offset into the section or symbol. */
2078 if (reloc_entry->howto->src_mask == 0)
2080 /* This case occurs with the 64-bit MIPS ELF ABI. */
2081 val = reloc_entry->addend;
2085 val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
2090 /* Adjust val for the final section location and GP value. If we
2091 are producing relocateable output, we don't want to do this for
2092 an external symbol. */
2094 || (symbol->flags & BSF_SECTION_SYM) != 0)
2095 val += relocation - gp;
2097 insn = (insn & ~0xffff) | (val & 0xffff);
2098 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
2101 reloc_entry->address += input_section->output_offset;
2103 /* Make sure it fit in 16 bits. */
2104 if ((long) val >= 0x8000 || (long) val < -0x8000)
2105 return bfd_reloc_overflow;
2107 return bfd_reloc_ok;
2110 /* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset
2111 from the gp register? XXX */
2113 static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *,
2114 arelent *, asection *,
2115 boolean, PTR, bfd_vma));
2117 bfd_reloc_status_type
2118 _bfd_mips_elf_gprel32_reloc (abfd,
2126 arelent *reloc_entry;
2129 asection *input_section;
2131 char **error_message;
2133 boolean relocateable;
2134 bfd_reloc_status_type ret;
2137 /* If we're relocating, and this is an external symbol with no
2138 addend, we don't want to change anything. We will only have an
2139 addend if this is a newly created reloc, not read from an ELF
2141 if (output_bfd != (bfd *) NULL
2142 && (symbol->flags & BSF_SECTION_SYM) == 0
2143 && reloc_entry->addend == 0)
2145 *error_message = (char *)
2146 _("32bits gp relative relocation occurs for an external symbol");
2147 return bfd_reloc_outofrange;
2150 if (output_bfd != (bfd *) NULL)
2152 relocateable = true;
2153 gp = _bfd_get_gp_value (output_bfd);
2157 relocateable = false;
2158 output_bfd = symbol->section->output_section->owner;
2160 ret = mips_elf_final_gp (output_bfd, symbol, relocateable,
2161 error_message, &gp);
2162 if (ret != bfd_reloc_ok)
2166 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
2167 relocateable, data, gp);
2170 static bfd_reloc_status_type
2171 gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data,
2175 arelent *reloc_entry;
2176 asection *input_section;
2177 boolean relocateable;
2184 if (bfd_is_com_section (symbol->section))
2187 relocation = symbol->value;
2189 relocation += symbol->section->output_section->vma;
2190 relocation += symbol->section->output_offset;
2192 if (reloc_entry->address > input_section->_cooked_size)
2193 return bfd_reloc_outofrange;
2195 if (reloc_entry->howto->src_mask == 0)
2197 /* This case arises with the 64-bit MIPS ELF ABI. */
2201 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2203 /* Set val to the offset into the section or symbol. */
2204 val += reloc_entry->addend;
2206 /* Adjust val for the final section location and GP value. If we
2207 are producing relocateable output, we don't want to do this for
2208 an external symbol. */
2210 || (symbol->flags & BSF_SECTION_SYM) != 0)
2211 val += relocation - gp;
2213 bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + reloc_entry->address);
2216 reloc_entry->address += input_section->output_offset;
2218 return bfd_reloc_ok;
2221 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
2222 generated when addresses are 64 bits. The upper 32 bits are a simple
2225 static bfd_reloc_status_type
2226 mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section,
2227 output_bfd, error_message)
2229 arelent *reloc_entry;
2232 asection *input_section;
2234 char **error_message;
2236 bfd_reloc_status_type r;
2241 r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2242 input_section, output_bfd, error_message);
2243 if (r != bfd_reloc_continue)
2246 /* Do a normal 32 bit relocation on the lower 32 bits. */
2247 reloc32 = *reloc_entry;
2248 if (bfd_big_endian (abfd))
2249 reloc32.address += 4;
2250 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
2251 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
2252 output_bfd, error_message);
2254 /* Sign extend into the upper 32 bits. */
2255 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
2256 if ((val & 0x80000000) != 0)
2260 addr = reloc_entry->address;
2261 if (bfd_little_endian (abfd))
2263 bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + addr);
2268 /* Handle a mips16 jump. */
2270 static bfd_reloc_status_type
2271 mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section,
2272 output_bfd, error_message)
2273 bfd *abfd ATTRIBUTE_UNUSED;
2274 arelent *reloc_entry;
2276 PTR data ATTRIBUTE_UNUSED;
2277 asection *input_section;
2279 char **error_message ATTRIBUTE_UNUSED;
2281 if (output_bfd != (bfd *) NULL
2282 && (symbol->flags & BSF_SECTION_SYM) == 0
2283 && reloc_entry->addend == 0)
2285 reloc_entry->address += input_section->output_offset;
2286 return bfd_reloc_ok;
2291 static boolean warned;
2294 (*_bfd_error_handler)
2295 (_("Linking mips16 objects into %s format is not supported"),
2296 bfd_get_target (input_section->output_section->owner));
2300 return bfd_reloc_undefined;
2303 /* Handle a mips16 GP relative reloc. */
2305 static bfd_reloc_status_type
2306 mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section,
2307 output_bfd, error_message)
2309 arelent *reloc_entry;
2312 asection *input_section;
2314 char **error_message;
2316 boolean relocateable;
2317 bfd_reloc_status_type ret;
2319 unsigned short extend, insn;
2320 unsigned long final;
2322 /* If we're relocating, and this is an external symbol with no
2323 addend, we don't want to change anything. We will only have an
2324 addend if this is a newly created reloc, not read from an ELF
2326 if (output_bfd != NULL
2327 && (symbol->flags & BSF_SECTION_SYM) == 0
2328 && reloc_entry->addend == 0)
2330 reloc_entry->address += input_section->output_offset;
2331 return bfd_reloc_ok;
2334 if (output_bfd != NULL)
2335 relocateable = true;
2338 relocateable = false;
2339 output_bfd = symbol->section->output_section->owner;
2342 ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message,
2344 if (ret != bfd_reloc_ok)
2347 if (reloc_entry->address > input_section->_cooked_size)
2348 return bfd_reloc_outofrange;
2350 /* Pick up the mips16 extend instruction and the real instruction. */
2351 extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address);
2352 insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2);
2354 /* Stuff the current addend back as a 32 bit value, do the usual
2355 relocation, and then clean up. */
2357 (bfd_vma) (((extend & 0x1f) << 11)
2360 (bfd_byte *) data + reloc_entry->address);
2362 ret = gprel16_with_gp (abfd, symbol, reloc_entry, input_section,
2363 relocateable, data, gp);
2365 final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2367 (bfd_vma) ((extend & 0xf800)
2368 | ((final >> 11) & 0x1f)
2370 (bfd_byte *) data + reloc_entry->address);
2372 (bfd_vma) ((insn & 0xffe0)
2374 (bfd_byte *) data + reloc_entry->address + 2);
2379 /* Return the ISA for a MIPS e_flags value. */
2382 elf_mips_isa (flags)
2385 switch (flags & EF_MIPS_ARCH)
2397 case E_MIPS_ARCH_32:
2399 case E_MIPS_ARCH_64:
2405 /* Return the MACH for a MIPS e_flags value. */
2407 static INLINE unsigned long
2408 elf_mips_mach (flags)
2411 switch (flags & EF_MIPS_MACH)
2413 case E_MIPS_MACH_3900:
2414 return bfd_mach_mips3900;
2416 case E_MIPS_MACH_4010:
2417 return bfd_mach_mips4010;
2419 case E_MIPS_MACH_4100:
2420 return bfd_mach_mips4100;
2422 case E_MIPS_MACH_4111:
2423 return bfd_mach_mips4111;
2425 case E_MIPS_MACH_4650:
2426 return bfd_mach_mips4650;
2428 case E_MIPS_MACH_SB1:
2429 return bfd_mach_mips_sb1;
2432 switch (flags & EF_MIPS_ARCH)
2436 return bfd_mach_mips3000;
2440 return bfd_mach_mips6000;
2444 return bfd_mach_mips4000;
2448 return bfd_mach_mips8000;
2452 return bfd_mach_mips5;
2455 case E_MIPS_ARCH_32:
2456 return bfd_mach_mipsisa32;
2459 case E_MIPS_ARCH_64:
2460 return bfd_mach_mipsisa64;
2468 /* Return printable name for ABI. */
2470 static INLINE char *
2471 elf_mips_abi_name (abfd)
2476 flags = elf_elfheader (abfd)->e_flags;
2477 switch (flags & EF_MIPS_ABI)
2480 if (ABI_N32_P (abfd))
2482 else if (ABI_64_P (abfd))
2486 case E_MIPS_ABI_O32:
2488 case E_MIPS_ABI_O64:
2490 case E_MIPS_ABI_EABI32:
2492 case E_MIPS_ABI_EABI64:
2495 return "unknown abi";
2499 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
2501 struct elf_reloc_map {
2502 bfd_reloc_code_real_type bfd_reloc_val;
2503 enum elf_mips_reloc_type elf_reloc_val;
2506 static const struct elf_reloc_map mips_reloc_map[] =
2508 { BFD_RELOC_NONE, R_MIPS_NONE, },
2509 { BFD_RELOC_16, R_MIPS_16 },
2510 { BFD_RELOC_32, R_MIPS_32 },
2511 { BFD_RELOC_64, R_MIPS_64 },
2512 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
2513 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
2514 { BFD_RELOC_LO16, R_MIPS_LO16 },
2515 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
2516 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
2517 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
2518 { BFD_RELOC_16_PCREL, R_MIPS_PC16 },
2519 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
2520 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
2521 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
2522 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
2523 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
2524 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
2525 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
2526 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
2527 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
2528 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }
2531 /* Given a BFD reloc type, return a howto structure. */
2533 static reloc_howto_type *
2534 bfd_elf32_bfd_reloc_type_lookup (abfd, code)
2536 bfd_reloc_code_real_type code;
2540 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++)
2542 if (mips_reloc_map[i].bfd_reloc_val == code)
2543 return &elf_mips_howto_table_rel[(int) mips_reloc_map[i].elf_reloc_val];
2549 bfd_set_error (bfd_error_bad_value);
2552 case BFD_RELOC_CTOR:
2553 /* We need to handle BFD_RELOC_CTOR specially.
2554 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2555 size of addresses on this architecture. */
2556 if (bfd_arch_bits_per_address (abfd) == 32)
2557 return &elf_mips_howto_table_rel[(int) R_MIPS_32];
2559 return &elf_mips_ctor64_howto;
2561 case BFD_RELOC_MIPS16_JMP:
2562 return &elf_mips16_jump_howto;
2563 case BFD_RELOC_MIPS16_GPREL:
2564 return &elf_mips16_gprel_howto;
2565 case BFD_RELOC_VTABLE_INHERIT:
2566 return &elf_mips_gnu_vtinherit_howto;
2567 case BFD_RELOC_VTABLE_ENTRY:
2568 return &elf_mips_gnu_vtentry_howto;
2569 case BFD_RELOC_PCREL_HI16_S:
2570 return &elf_mips_gnu_rel_hi16;
2571 case BFD_RELOC_PCREL_LO16:
2572 return &elf_mips_gnu_rel_lo16;
2573 case BFD_RELOC_16_PCREL_S2:
2574 return &elf_mips_gnu_rel16_s2;
2575 case BFD_RELOC_64_PCREL:
2576 return &elf_mips_gnu_pcrel64;
2577 case BFD_RELOC_32_PCREL:
2578 return &elf_mips_gnu_pcrel32;
2582 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2584 static reloc_howto_type *
2585 mips_rtype_to_howto (r_type)
2586 unsigned int r_type;
2591 return &elf_mips16_jump_howto;
2593 case R_MIPS16_GPREL:
2594 return &elf_mips16_gprel_howto;
2596 case R_MIPS_GNU_VTINHERIT:
2597 return &elf_mips_gnu_vtinherit_howto;
2599 case R_MIPS_GNU_VTENTRY:
2600 return &elf_mips_gnu_vtentry_howto;
2602 case R_MIPS_GNU_REL_HI16:
2603 return &elf_mips_gnu_rel_hi16;
2605 case R_MIPS_GNU_REL_LO16:
2606 return &elf_mips_gnu_rel_lo16;
2608 case R_MIPS_GNU_REL16_S2:
2609 return &elf_mips_gnu_rel16_s2;
2612 return &elf_mips_gnu_pcrel64;
2615 return &elf_mips_gnu_pcrel32;
2619 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2620 return &elf_mips_howto_table_rel[r_type];
2625 /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2628 mips_info_to_howto_rel (abfd, cache_ptr, dst)
2631 Elf32_Internal_Rel *dst;
2633 unsigned int r_type;
2635 r_type = ELF32_R_TYPE (dst->r_info);
2636 cache_ptr->howto = mips_rtype_to_howto (r_type);
2638 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2639 value for the object file. We get the addend now, rather than
2640 when we do the relocation, because the symbol manipulations done
2641 by the linker may cause us to lose track of the input BFD. */
2642 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
2643 && (r_type == (unsigned int) R_MIPS_GPREL16
2644 || r_type == (unsigned int) R_MIPS_LITERAL))
2645 cache_ptr->addend = elf_gp (abfd);
2648 /* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */
2651 mips_info_to_howto_rela (abfd, cache_ptr, dst)
2654 Elf32_Internal_Rela *dst;
2656 /* Since an Elf32_Internal_Rel is an initial prefix of an
2657 Elf32_Internal_Rela, we can just use mips_info_to_howto_rel
2659 mips_info_to_howto_rel (abfd, cache_ptr, (Elf32_Internal_Rel *) dst);
2661 /* If we ever need to do any extra processing with dst->r_addend
2662 (the field omitted in an Elf32_Internal_Rel) we can do it here. */
2665 /* A .reginfo section holds a single Elf32_RegInfo structure. These
2666 routines swap this structure in and out. They are used outside of
2667 BFD, so they are globally visible. */
2670 bfd_mips_elf32_swap_reginfo_in (abfd, ex, in)
2672 const Elf32_External_RegInfo *ex;
2675 in->ri_gprmask = H_GET_32 (abfd, ex->ri_gprmask);
2676 in->ri_cprmask[0] = H_GET_32 (abfd, ex->ri_cprmask[0]);
2677 in->ri_cprmask[1] = H_GET_32 (abfd, ex->ri_cprmask[1]);
2678 in->ri_cprmask[2] = H_GET_32 (abfd, ex->ri_cprmask[2]);
2679 in->ri_cprmask[3] = H_GET_32 (abfd, ex->ri_cprmask[3]);
2680 in->ri_gp_value = H_GET_32 (abfd, ex->ri_gp_value);
2684 bfd_mips_elf32_swap_reginfo_out (abfd, in, ex)
2686 const Elf32_RegInfo *in;
2687 Elf32_External_RegInfo *ex;
2689 H_PUT_32 (abfd, in->ri_gprmask, ex->ri_gprmask);
2690 H_PUT_32 (abfd, in->ri_cprmask[0], ex->ri_cprmask[0]);
2691 H_PUT_32 (abfd, in->ri_cprmask[1], ex->ri_cprmask[1]);
2692 H_PUT_32 (abfd, in->ri_cprmask[2], ex->ri_cprmask[2]);
2693 H_PUT_32 (abfd, in->ri_cprmask[3], ex->ri_cprmask[3]);
2694 H_PUT_32 (abfd, in->ri_gp_value, ex->ri_gp_value);
2697 /* In the 64 bit ABI, the .MIPS.options section holds register
2698 information in an Elf64_Reginfo structure. These routines swap
2699 them in and out. They are globally visible because they are used
2700 outside of BFD. These routines are here so that gas can call them
2701 without worrying about whether the 64 bit ABI has been included. */
2704 bfd_mips_elf64_swap_reginfo_in (abfd, ex, in)
2706 const Elf64_External_RegInfo *ex;
2707 Elf64_Internal_RegInfo *in;
2709 in->ri_gprmask = H_GET_32 (abfd, ex->ri_gprmask);
2710 in->ri_pad = H_GET_32 (abfd, ex->ri_pad);
2711 in->ri_cprmask[0] = H_GET_32 (abfd, ex->ri_cprmask[0]);
2712 in->ri_cprmask[1] = H_GET_32 (abfd, ex->ri_cprmask[1]);
2713 in->ri_cprmask[2] = H_GET_32 (abfd, ex->ri_cprmask[2]);
2714 in->ri_cprmask[3] = H_GET_32 (abfd, ex->ri_cprmask[3]);
2715 in->ri_gp_value = H_GET_64 (abfd, ex->ri_gp_value);
2719 bfd_mips_elf64_swap_reginfo_out (abfd, in, ex)
2721 const Elf64_Internal_RegInfo *in;
2722 Elf64_External_RegInfo *ex;
2724 H_PUT_32 (abfd, in->ri_gprmask, ex->ri_gprmask);
2725 H_PUT_32 (abfd, in->ri_pad, ex->ri_pad);
2726 H_PUT_32 (abfd, in->ri_cprmask[0], ex->ri_cprmask[0]);
2727 H_PUT_32 (abfd, in->ri_cprmask[1], ex->ri_cprmask[1]);
2728 H_PUT_32 (abfd, in->ri_cprmask[2], ex->ri_cprmask[2]);
2729 H_PUT_32 (abfd, in->ri_cprmask[3], ex->ri_cprmask[3]);
2730 H_PUT_64 (abfd, in->ri_gp_value, ex->ri_gp_value);
2733 /* Swap an entry in a .gptab section. Note that these routines rely
2734 on the equivalence of the two elements of the union. */
2737 bfd_mips_elf32_swap_gptab_in (abfd, ex, in)
2739 const Elf32_External_gptab *ex;
2742 in->gt_entry.gt_g_value = H_GET_32 (abfd, ex->gt_entry.gt_g_value);
2743 in->gt_entry.gt_bytes = H_GET_32 (abfd, ex->gt_entry.gt_bytes);
2747 bfd_mips_elf32_swap_gptab_out (abfd, in, ex)
2749 const Elf32_gptab *in;
2750 Elf32_External_gptab *ex;
2752 H_PUT_32 (abfd, in->gt_entry.gt_g_value, ex->gt_entry.gt_g_value);
2753 H_PUT_32 (abfd, in->gt_entry.gt_bytes, ex->gt_entry.gt_bytes);
2757 bfd_elf32_swap_compact_rel_out (abfd, in, ex)
2759 const Elf32_compact_rel *in;
2760 Elf32_External_compact_rel *ex;
2762 H_PUT_32 (abfd, in->id1, ex->id1);
2763 H_PUT_32 (abfd, in->num, ex->num);
2764 H_PUT_32 (abfd, in->id2, ex->id2);
2765 H_PUT_32 (abfd, in->offset, ex->offset);
2766 H_PUT_32 (abfd, in->reserved0, ex->reserved0);
2767 H_PUT_32 (abfd, in->reserved1, ex->reserved1);
2771 bfd_elf32_swap_crinfo_out (abfd, in, ex)
2773 const Elf32_crinfo *in;
2774 Elf32_External_crinfo *ex;
2778 l = (((in->ctype & CRINFO_CTYPE) << CRINFO_CTYPE_SH)
2779 | ((in->rtype & CRINFO_RTYPE) << CRINFO_RTYPE_SH)
2780 | ((in->dist2to & CRINFO_DIST2TO) << CRINFO_DIST2TO_SH)
2781 | ((in->relvaddr & CRINFO_RELVADDR) << CRINFO_RELVADDR_SH));
2782 H_PUT_32 (abfd, l, ex->info);
2783 H_PUT_32 (abfd, in->konst, ex->konst);
2784 H_PUT_32 (abfd, in->vaddr, ex->vaddr);
2787 /* Swap in an options header. */
2790 bfd_mips_elf_swap_options_in (abfd, ex, in)
2792 const Elf_External_Options *ex;
2793 Elf_Internal_Options *in;
2795 in->kind = H_GET_8 (abfd, ex->kind);
2796 in->size = H_GET_8 (abfd, ex->size);
2797 in->section = H_GET_16 (abfd, ex->section);
2798 in->info = H_GET_32 (abfd, ex->info);
2801 /* Swap out an options header. */
2804 bfd_mips_elf_swap_options_out (abfd, in, ex)
2806 const Elf_Internal_Options *in;
2807 Elf_External_Options *ex;
2809 H_PUT_8 (abfd, in->kind, ex->kind);
2810 H_PUT_8 (abfd, in->size, ex->size);
2811 H_PUT_16 (abfd, in->section, ex->section);
2812 H_PUT_32 (abfd, in->info, ex->info);
2815 /* Swap in an MSYM entry. */
2818 bfd_mips_elf_swap_msym_in (abfd, ex, in)
2820 const Elf32_External_Msym *ex;
2821 Elf32_Internal_Msym *in;
2823 in->ms_hash_value = H_GET_32 (abfd, ex->ms_hash_value);
2824 in->ms_info = H_GET_32 (abfd, ex->ms_info);
2827 /* Swap out an MSYM entry. */
2830 bfd_mips_elf_swap_msym_out (abfd, in, ex)
2832 const Elf32_Internal_Msym *in;
2833 Elf32_External_Msym *ex;
2835 H_PUT_32 (abfd, in->ms_hash_value, ex->ms_hash_value);
2836 H_PUT_32 (abfd, in->ms_info, ex->ms_info);
2839 /* Determine whether a symbol is global for the purposes of splitting
2840 the symbol table into global symbols and local symbols. At least
2841 on Irix 5, this split must be between section symbols and all other
2842 symbols. On most ELF targets the split is between static symbols
2843 and externally visible symbols. */
2846 mips_elf_sym_is_global (abfd, sym)
2847 bfd *abfd ATTRIBUTE_UNUSED;
2850 if (SGI_COMPAT (abfd))
2851 return (sym->flags & BSF_SECTION_SYM) == 0;
2853 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
2854 || bfd_is_und_section (bfd_get_section (sym))
2855 || bfd_is_com_section (bfd_get_section (sym)));
2858 /* Set the right machine number for a MIPS ELF file. This is used for
2859 both the 32-bit and the 64-bit ABI. */
2862 _bfd_mips_elf_object_p (abfd)
2865 /* Irix 5 and 6 are broken. Object file symbol tables are not always
2866 sorted correctly such that local symbols precede global symbols,
2867 and the sh_info field in the symbol table is not always right. */
2868 if (SGI_COMPAT(abfd))
2869 elf_bad_symtab (abfd) = true;
2871 bfd_default_set_arch_mach (abfd, bfd_arch_mips,
2872 elf_mips_mach (elf_elfheader (abfd)->e_flags));
2876 /* The final processing done just before writing out a MIPS ELF object
2877 file. This gets the MIPS architecture right based on the machine
2878 number. This is used by both the 32-bit and the 64-bit ABI. */
2881 _bfd_mips_elf_final_write_processing (abfd, linker)
2883 boolean linker ATTRIBUTE_UNUSED;
2887 Elf_Internal_Shdr **hdrpp;
2891 switch (bfd_get_mach (abfd))
2894 case bfd_mach_mips3000:
2895 val = E_MIPS_ARCH_1;
2898 case bfd_mach_mips3900:
2899 val = E_MIPS_ARCH_1 | E_MIPS_MACH_3900;
2902 case bfd_mach_mips6000:
2903 val = E_MIPS_ARCH_2;
2906 case bfd_mach_mips4000:
2907 case bfd_mach_mips4300:
2908 case bfd_mach_mips4400:
2909 case bfd_mach_mips4600:
2910 val = E_MIPS_ARCH_3;
2913 case bfd_mach_mips4010:
2914 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4010;
2917 case bfd_mach_mips4100:
2918 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100;
2921 case bfd_mach_mips4111:
2922 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4111;
2925 case bfd_mach_mips4650:
2926 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650;
2929 case bfd_mach_mips5000:
2930 case bfd_mach_mips8000:
2931 case bfd_mach_mips10000:
2932 case bfd_mach_mips12000:
2933 val = E_MIPS_ARCH_4;
2936 case bfd_mach_mips5:
2937 val = E_MIPS_ARCH_5;
2940 case bfd_mach_mips_sb1:
2941 val = E_MIPS_ARCH_64 | E_MIPS_MACH_SB1;
2944 case bfd_mach_mipsisa32:
2945 val = E_MIPS_ARCH_32;
2948 case bfd_mach_mipsisa64:
2949 val = E_MIPS_ARCH_64;
2952 elf_elfheader (abfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
2953 elf_elfheader (abfd)->e_flags |= val;
2955 /* Set the sh_info field for .gptab sections and other appropriate
2956 info for each special section. */
2957 for (i = 1, hdrpp = elf_elfsections (abfd) + 1;
2958 i < elf_numsections (abfd);
2961 switch ((*hdrpp)->sh_type)
2964 case SHT_MIPS_LIBLIST:
2965 sec = bfd_get_section_by_name (abfd, ".dynstr");
2967 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2970 case SHT_MIPS_GPTAB:
2971 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2972 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2973 BFD_ASSERT (name != NULL
2974 && strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0);
2975 sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1);
2976 BFD_ASSERT (sec != NULL);
2977 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
2980 case SHT_MIPS_CONTENT:
2981 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2982 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2983 BFD_ASSERT (name != NULL
2984 && strncmp (name, ".MIPS.content",
2985 sizeof ".MIPS.content" - 1) == 0);
2986 sec = bfd_get_section_by_name (abfd,
2987 name + sizeof ".MIPS.content" - 1);
2988 BFD_ASSERT (sec != NULL);
2989 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2992 case SHT_MIPS_SYMBOL_LIB:
2993 sec = bfd_get_section_by_name (abfd, ".dynsym");
2995 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2996 sec = bfd_get_section_by_name (abfd, ".liblist");
2998 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
3001 case SHT_MIPS_EVENTS:
3002 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
3003 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
3004 BFD_ASSERT (name != NULL);
3005 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0)
3006 sec = bfd_get_section_by_name (abfd,
3007 name + sizeof ".MIPS.events" - 1);
3010 BFD_ASSERT (strncmp (name, ".MIPS.post_rel",
3011 sizeof ".MIPS.post_rel" - 1) == 0);
3012 sec = bfd_get_section_by_name (abfd,
3014 + sizeof ".MIPS.post_rel" - 1));
3016 BFD_ASSERT (sec != NULL);
3017 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
3024 /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */
3027 _bfd_mips_elf_set_private_flags (abfd, flags)
3031 BFD_ASSERT (!elf_flags_init (abfd)
3032 || elf_elfheader (abfd)->e_flags == flags);
3034 elf_elfheader (abfd)->e_flags = flags;
3035 elf_flags_init (abfd) = true;
3039 /* Copy backend specific data from one object module to another */
3042 _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd)
3046 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3047 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3050 BFD_ASSERT (!elf_flags_init (obfd)
3051 || (elf_elfheader (obfd)->e_flags
3052 == elf_elfheader (ibfd)->e_flags));
3054 elf_gp (obfd) = elf_gp (ibfd);
3055 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
3056 elf_flags_init (obfd) = true;
3060 /* Merge backend specific data from an object file to the output
3061 object file when linking. */
3064 _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
3071 boolean null_input_bfd = true;
3074 /* Check if we have the same endianess */
3075 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
3078 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3079 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3082 new_flags = elf_elfheader (ibfd)->e_flags;
3083 elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
3084 old_flags = elf_elfheader (obfd)->e_flags;
3086 if (! elf_flags_init (obfd))
3088 elf_flags_init (obfd) = true;
3089 elf_elfheader (obfd)->e_flags = new_flags;
3090 elf_elfheader (obfd)->e_ident[EI_CLASS]
3091 = elf_elfheader (ibfd)->e_ident[EI_CLASS];
3093 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3094 && bfd_get_arch_info (obfd)->the_default)
3096 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3097 bfd_get_mach (ibfd)))
3104 /* Check flag compatibility. */
3106 new_flags &= ~EF_MIPS_NOREORDER;
3107 old_flags &= ~EF_MIPS_NOREORDER;
3109 if (new_flags == old_flags)
3112 /* Check to see if the input BFD actually contains any sections.
3113 If not, its flags may not have been initialised either, but it cannot
3114 actually cause any incompatibility. */
3115 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
3117 /* Ignore synthetic sections and empty .text, .data and .bss sections
3118 which are automatically generated by gas. */
3119 if (strcmp (sec->name, ".reginfo")
3120 && strcmp (sec->name, ".mdebug")
3121 && ((!strcmp (sec->name, ".text")
3122 || !strcmp (sec->name, ".data")
3123 || !strcmp (sec->name, ".bss"))
3124 && sec->_raw_size != 0))
3126 null_input_bfd = false;
3135 if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC))
3137 new_flags &= ~EF_MIPS_PIC;
3138 old_flags &= ~EF_MIPS_PIC;
3139 (*_bfd_error_handler)
3140 (_("%s: linking PIC files with non-PIC files"),
3141 bfd_archive_filename (ibfd));
3145 if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC))
3147 new_flags &= ~EF_MIPS_CPIC;
3148 old_flags &= ~EF_MIPS_CPIC;
3149 (*_bfd_error_handler)
3150 (_("%s: linking abicalls files with non-abicalls files"),
3151 bfd_archive_filename (ibfd));
3155 /* Compare the ISA's. */
3156 if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))
3157 != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)))
3159 int new_mach = new_flags & EF_MIPS_MACH;
3160 int old_mach = old_flags & EF_MIPS_MACH;
3161 int new_isa = elf_mips_isa (new_flags);
3162 int old_isa = elf_mips_isa (old_flags);
3164 /* If either has no machine specified, just compare the general isa's.
3165 Some combinations of machines are ok, if the isa's match. */
3168 || new_mach == old_mach
3171 /* Don't warn about mixing code using 32-bit ISAs, or mixing code
3172 using 64-bit ISAs. They will normally use the same data sizes
3173 and calling conventions. */
3175 if (( (new_isa == 1 || new_isa == 2 || new_isa == 32)
3176 ^ (old_isa == 1 || old_isa == 2 || old_isa == 32)) != 0)
3178 (*_bfd_error_handler)
3179 (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"),
3180 bfd_archive_filename (ibfd), new_isa, old_isa);
3187 (*_bfd_error_handler)
3188 (_("%s: ISA mismatch (%d) with previous modules (%d)"),
3189 bfd_archive_filename (ibfd),
3190 elf_mips_mach (new_flags),
3191 elf_mips_mach (old_flags));
3195 new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
3196 old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
3199 /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it
3200 does set EI_CLASS differently from any 32-bit ABI. */
3201 if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI)
3202 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
3203 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
3205 /* Only error if both are set (to different values). */
3206 if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI))
3207 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
3208 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
3210 (*_bfd_error_handler)
3211 (_("%s: ABI mismatch: linking %s module with previous %s modules"),
3212 bfd_archive_filename (ibfd),
3213 elf_mips_abi_name (ibfd),
3214 elf_mips_abi_name (obfd));
3217 new_flags &= ~EF_MIPS_ABI;
3218 old_flags &= ~EF_MIPS_ABI;
3221 /* Warn about any other mismatches */
3222 if (new_flags != old_flags)
3224 (*_bfd_error_handler)
3225 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
3226 bfd_archive_filename (ibfd), (unsigned long) new_flags,
3227 (unsigned long) old_flags);
3233 bfd_set_error (bfd_error_bad_value);
3241 _bfd_mips_elf_print_private_bfd_data (abfd, ptr)
3245 FILE *file = (FILE *) ptr;
3247 BFD_ASSERT (abfd != NULL && ptr != NULL);
3249 /* Print normal ELF private data. */
3250 _bfd_elf_print_private_bfd_data (abfd, ptr);
3252 /* xgettext:c-format */
3253 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
3255 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32)
3256 fprintf (file, _(" [abi=O32]"));
3257 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O64)
3258 fprintf (file, _(" [abi=O64]"));
3259 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32)
3260 fprintf (file, _(" [abi=EABI32]"));
3261 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI64)
3262 fprintf (file, _(" [abi=EABI64]"));
3263 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI))
3264 fprintf (file, _(" [abi unknown]"));
3265 else if (ABI_N32_P (abfd))
3266 fprintf (file, _(" [abi=N32]"));
3267 else if (ABI_64_P (abfd))
3268 fprintf (file, _(" [abi=64]"));
3270 fprintf (file, _(" [no abi set]"));
3272 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1)
3273 fprintf (file, _(" [mips1]"));
3274 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2)
3275 fprintf (file, _(" [mips2]"));
3276 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3)
3277 fprintf (file, _(" [mips3]"));
3278 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4)
3279 fprintf (file, _(" [mips4]"));
3280 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_5)
3281 fprintf (file, _ (" [mips5]"));
3282 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32)
3283 fprintf (file, _ (" [mips32]"));
3284 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64)
3285 fprintf (file, _ (" [mips64]"));
3287 fprintf (file, _(" [unknown ISA]"));
3289 if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE)
3290 fprintf (file, _(" [32bitmode]"));
3292 fprintf (file, _(" [not 32bitmode]"));
3299 /* Handle a MIPS specific section when reading an object file. This
3300 is called when elfcode.h finds a section with an unknown type.
3301 This routine supports both the 32-bit and 64-bit ELF ABI.
3303 FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
3307 _bfd_mips_elf_section_from_shdr (abfd, hdr, name)
3309 Elf_Internal_Shdr *hdr;
3314 /* There ought to be a place to keep ELF backend specific flags, but
3315 at the moment there isn't one. We just keep track of the
3316 sections by their name, instead. Fortunately, the ABI gives
3317 suggested names for all the MIPS specific sections, so we will
3318 probably get away with this. */
3319 switch (hdr->sh_type)
3321 case SHT_MIPS_LIBLIST:
3322 if (strcmp (name, ".liblist") != 0)
3326 if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0)
3329 case SHT_MIPS_CONFLICT:
3330 if (strcmp (name, ".conflict") != 0)
3333 case SHT_MIPS_GPTAB:
3334 if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0)
3337 case SHT_MIPS_UCODE:
3338 if (strcmp (name, ".ucode") != 0)
3341 case SHT_MIPS_DEBUG:
3342 if (strcmp (name, ".mdebug") != 0)
3344 flags = SEC_DEBUGGING;
3346 case SHT_MIPS_REGINFO:
3347 if (strcmp (name, ".reginfo") != 0
3348 || hdr->sh_size != sizeof (Elf32_External_RegInfo))
3350 flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE);
3352 case SHT_MIPS_IFACE:
3353 if (strcmp (name, ".MIPS.interfaces") != 0)
3356 case SHT_MIPS_CONTENT:
3357 if (strncmp (name, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0)
3360 case SHT_MIPS_OPTIONS:
3361 if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) != 0)
3364 case SHT_MIPS_DWARF:
3365 if (strncmp (name, ".debug_", sizeof ".debug_" - 1) != 0)
3368 case SHT_MIPS_SYMBOL_LIB:
3369 if (strcmp (name, ".MIPS.symlib") != 0)
3372 case SHT_MIPS_EVENTS:
3373 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0
3374 && strncmp (name, ".MIPS.post_rel",
3375 sizeof ".MIPS.post_rel" - 1) != 0)
3382 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
3387 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3388 (bfd_get_section_flags (abfd,
3394 /* FIXME: We should record sh_info for a .gptab section. */
3396 /* For a .reginfo section, set the gp value in the tdata information
3397 from the contents of this section. We need the gp value while
3398 processing relocs, so we just get it now. The .reginfo section
3399 is not used in the 64-bit MIPS ELF ABI. */
3400 if (hdr->sh_type == SHT_MIPS_REGINFO)
3402 Elf32_External_RegInfo ext;
3405 if (! bfd_get_section_contents (abfd, hdr->bfd_section, (PTR) &ext,
3407 (bfd_size_type) sizeof ext))
3409 bfd_mips_elf32_swap_reginfo_in (abfd, &ext, &s);
3410 elf_gp (abfd) = s.ri_gp_value;
3413 /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
3414 set the gp value based on what we find. We may see both
3415 SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
3416 they should agree. */
3417 if (hdr->sh_type == SHT_MIPS_OPTIONS)
3419 bfd_byte *contents, *l, *lend;
3421 contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
3422 if (contents == NULL)
3424 if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents,
3425 (file_ptr) 0, hdr->sh_size))
3431 lend = contents + hdr->sh_size;
3432 while (l + sizeof (Elf_External_Options) <= lend)
3434 Elf_Internal_Options intopt;
3436 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3438 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3440 Elf64_Internal_RegInfo intreg;
3442 bfd_mips_elf64_swap_reginfo_in
3444 ((Elf64_External_RegInfo *)
3445 (l + sizeof (Elf_External_Options))),
3447 elf_gp (abfd) = intreg.ri_gp_value;
3449 else if (intopt.kind == ODK_REGINFO)
3451 Elf32_RegInfo intreg;
3453 bfd_mips_elf32_swap_reginfo_in
3455 ((Elf32_External_RegInfo *)
3456 (l + sizeof (Elf_External_Options))),
3458 elf_gp (abfd) = intreg.ri_gp_value;
3468 /* Set the correct type for a MIPS ELF section. We do this by the
3469 section name, which is a hack, but ought to work. This routine is
3470 used by both the 32-bit and the 64-bit ABI. */
3473 _bfd_mips_elf_fake_sections (abfd, hdr, sec)
3475 Elf32_Internal_Shdr *hdr;
3478 register const char *name;
3480 name = bfd_get_section_name (abfd, sec);
3482 if (strcmp (name, ".liblist") == 0)
3484 hdr->sh_type = SHT_MIPS_LIBLIST;
3485 hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib);
3486 /* The sh_link field is set in final_write_processing. */
3488 else if (strcmp (name, ".conflict") == 0)
3489 hdr->sh_type = SHT_MIPS_CONFLICT;
3490 else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0)
3492 hdr->sh_type = SHT_MIPS_GPTAB;
3493 hdr->sh_entsize = sizeof (Elf32_External_gptab);
3494 /* The sh_info field is set in final_write_processing. */
3496 else if (strcmp (name, ".ucode") == 0)
3497 hdr->sh_type = SHT_MIPS_UCODE;
3498 else if (strcmp (name, ".mdebug") == 0)
3500 hdr->sh_type = SHT_MIPS_DEBUG;
3501 /* In a shared object on Irix 5.3, the .mdebug section has an
3502 entsize of 0. FIXME: Does this matter? */
3503 if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0)
3504 hdr->sh_entsize = 0;
3506 hdr->sh_entsize = 1;
3508 else if (strcmp (name, ".reginfo") == 0)
3510 hdr->sh_type = SHT_MIPS_REGINFO;
3511 /* In a shared object on Irix 5.3, the .reginfo section has an
3512 entsize of 0x18. FIXME: Does this matter? */
3513 if (SGI_COMPAT (abfd))
3515 if ((abfd->flags & DYNAMIC) != 0)
3516 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
3518 hdr->sh_entsize = 1;
3521 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
3523 else if (SGI_COMPAT (abfd)
3524 && (strcmp (name, ".hash") == 0
3525 || strcmp (name, ".dynamic") == 0
3526 || strcmp (name, ".dynstr") == 0))
3528 if (SGI_COMPAT (abfd))
3529 hdr->sh_entsize = 0;
3531 /* This isn't how the Irix 6 linker behaves. */
3532 hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES;
3535 else if (strcmp (name, ".got") == 0
3536 || strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0
3537 || strcmp (name, ".sdata") == 0
3538 || strcmp (name, ".sbss") == 0
3539 || strcmp (name, ".lit4") == 0
3540 || strcmp (name, ".lit8") == 0)
3541 hdr->sh_flags |= SHF_MIPS_GPREL;
3542 else if (strcmp (name, ".MIPS.interfaces") == 0)
3544 hdr->sh_type = SHT_MIPS_IFACE;
3545 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3547 else if (strncmp (name, ".MIPS.content", strlen (".MIPS.content")) == 0)
3549 hdr->sh_type = SHT_MIPS_CONTENT;
3550 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3551 /* The sh_info field is set in final_write_processing. */
3553 else if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
3555 hdr->sh_type = SHT_MIPS_OPTIONS;
3556 hdr->sh_entsize = 1;
3557 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3559 else if (strncmp (name, ".debug_", sizeof ".debug_" - 1) == 0)
3560 hdr->sh_type = SHT_MIPS_DWARF;
3561 else if (strcmp (name, ".MIPS.symlib") == 0)
3563 hdr->sh_type = SHT_MIPS_SYMBOL_LIB;
3564 /* The sh_link and sh_info fields are set in
3565 final_write_processing. */
3567 else if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0
3568 || strncmp (name, ".MIPS.post_rel",
3569 sizeof ".MIPS.post_rel" - 1) == 0)
3571 hdr->sh_type = SHT_MIPS_EVENTS;
3572 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3573 /* The sh_link field is set in final_write_processing. */
3575 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) == 0)
3577 hdr->sh_type = SHT_MIPS_MSYM;
3578 hdr->sh_flags |= SHF_ALLOC;
3579 hdr->sh_entsize = 8;
3582 /* The generic elf_fake_sections will set up REL_HDR using the
3583 default kind of relocations. But, we may actually need both
3584 kinds of relocations, so we set up the second header here. */
3585 if ((sec->flags & SEC_RELOC) != 0)
3587 struct bfd_elf_section_data *esd;
3588 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
3590 esd = elf_section_data (sec);
3591 BFD_ASSERT (esd->rel_hdr2 == NULL);
3592 esd->rel_hdr2 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt);
3595 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
3596 !elf_section_data (sec)->use_rela_p);
3602 /* Given a BFD section, try to locate the corresponding ELF section
3603 index. This is used by both the 32-bit and the 64-bit ABI.
3604 Actually, it's not clear to me that the 64-bit ABI supports these,
3605 but for non-PIC objects we will certainly want support for at least
3606 the .scommon section. */
3609 _bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
3610 bfd *abfd ATTRIBUTE_UNUSED;
3611 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED;
3615 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3617 *retval = SHN_MIPS_SCOMMON;
3620 if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0)
3622 *retval = SHN_MIPS_ACOMMON;
3628 /* When are writing out the .options or .MIPS.options section,
3629 remember the bytes we are writing out, so that we can install the
3630 GP value in the section_processing routine. */
3633 _bfd_mips_elf_set_section_contents (abfd, section, location, offset, count)
3638 bfd_size_type count;
3640 if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
3644 if (elf_section_data (section) == NULL)
3646 bfd_size_type amt = sizeof (struct bfd_elf_section_data);
3647 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
3648 if (elf_section_data (section) == NULL)
3651 c = (bfd_byte *) elf_section_data (section)->tdata;
3656 if (section->_cooked_size != 0)
3657 size = section->_cooked_size;
3659 size = section->_raw_size;
3660 c = (bfd_byte *) bfd_zalloc (abfd, size);
3663 elf_section_data (section)->tdata = (PTR) c;
3666 memcpy (c + offset, location, (size_t) count);
3669 return _bfd_elf_set_section_contents (abfd, section, location, offset,
3673 /* Work over a section just before writing it out. This routine is
3674 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3675 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3679 _bfd_mips_elf_section_processing (abfd, hdr)
3681 Elf_Internal_Shdr *hdr;
3683 if (hdr->sh_type == SHT_MIPS_REGINFO
3684 && hdr->sh_size > 0)
3688 BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
3689 BFD_ASSERT (hdr->contents == NULL);
3692 hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
3695 H_PUT_32 (abfd, elf_gp (abfd), buf);
3696 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
3700 if (hdr->sh_type == SHT_MIPS_OPTIONS
3701 && hdr->bfd_section != NULL
3702 && elf_section_data (hdr->bfd_section) != NULL
3703 && elf_section_data (hdr->bfd_section)->tdata != NULL)
3705 bfd_byte *contents, *l, *lend;
3707 /* We stored the section contents in the elf_section_data tdata
3708 field in the set_section_contents routine. We save the
3709 section contents so that we don't have to read them again.
3710 At this point we know that elf_gp is set, so we can look
3711 through the section contents to see if there is an
3712 ODK_REGINFO structure. */
3714 contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata;
3716 lend = contents + hdr->sh_size;
3717 while (l + sizeof (Elf_External_Options) <= lend)
3719 Elf_Internal_Options intopt;
3721 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3723 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3730 + sizeof (Elf_External_Options)
3731 + (sizeof (Elf64_External_RegInfo) - 8)),
3734 H_PUT_64 (abfd, elf_gp (abfd), buf);
3735 if (bfd_bwrite (buf, (bfd_size_type) 8, abfd) != 8)
3738 else if (intopt.kind == ODK_REGINFO)
3745 + sizeof (Elf_External_Options)
3746 + (sizeof (Elf32_External_RegInfo) - 4)),
3749 H_PUT_32 (abfd, elf_gp (abfd), buf);
3750 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
3757 if (hdr->bfd_section != NULL)
3759 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3761 if (strcmp (name, ".sdata") == 0
3762 || strcmp (name, ".lit8") == 0
3763 || strcmp (name, ".lit4") == 0)
3765 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3766 hdr->sh_type = SHT_PROGBITS;
3768 else if (strcmp (name, ".sbss") == 0)
3770 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3771 hdr->sh_type = SHT_NOBITS;
3773 else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0)
3775 hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
3776 hdr->sh_type = SHT_PROGBITS;
3778 else if (strcmp (name, ".compact_rel") == 0)
3781 hdr->sh_type = SHT_PROGBITS;
3783 else if (strcmp (name, ".rtproc") == 0)
3785 if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
3787 unsigned int adjust;
3789 adjust = hdr->sh_size % hdr->sh_addralign;
3791 hdr->sh_size += hdr->sh_addralign - adjust;
3799 /* MIPS ELF uses two common sections. One is the usual one, and the
3800 other is for small objects. All the small objects are kept
3801 together, and then referenced via the gp pointer, which yields
3802 faster assembler code. This is what we use for the small common
3803 section. This approach is copied from ecoff.c. */
3804 static asection mips_elf_scom_section;
3805 static asymbol mips_elf_scom_symbol;
3806 static asymbol *mips_elf_scom_symbol_ptr;
3808 /* MIPS ELF also uses an acommon section, which represents an
3809 allocated common symbol which may be overridden by a
3810 definition in a shared library. */
3811 static asection mips_elf_acom_section;
3812 static asymbol mips_elf_acom_symbol;
3813 static asymbol *mips_elf_acom_symbol_ptr;
3815 /* Handle the special MIPS section numbers that a symbol may use.
3816 This is used for both the 32-bit and the 64-bit ABI. */
3819 _bfd_mips_elf_symbol_processing (abfd, asym)
3823 elf_symbol_type *elfsym;
3825 elfsym = (elf_symbol_type *) asym;
3826 switch (elfsym->internal_elf_sym.st_shndx)
3828 case SHN_MIPS_ACOMMON:
3829 /* This section is used in a dynamically linked executable file.
3830 It is an allocated common section. The dynamic linker can
3831 either resolve these symbols to something in a shared
3832 library, or it can just leave them here. For our purposes,
3833 we can consider these symbols to be in a new section. */
3834 if (mips_elf_acom_section.name == NULL)
3836 /* Initialize the acommon section. */
3837 mips_elf_acom_section.name = ".acommon";
3838 mips_elf_acom_section.flags = SEC_ALLOC;
3839 mips_elf_acom_section.output_section = &mips_elf_acom_section;
3840 mips_elf_acom_section.symbol = &mips_elf_acom_symbol;
3841 mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr;
3842 mips_elf_acom_symbol.name = ".acommon";
3843 mips_elf_acom_symbol.flags = BSF_SECTION_SYM;
3844 mips_elf_acom_symbol.section = &mips_elf_acom_section;
3845 mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol;
3847 asym->section = &mips_elf_acom_section;
3851 /* Common symbols less than the GP size are automatically
3852 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3853 if (asym->value > elf_gp_size (abfd)
3854 || IRIX_COMPAT (abfd) == ict_irix6)
3857 case SHN_MIPS_SCOMMON:
3858 if (mips_elf_scom_section.name == NULL)
3860 /* Initialize the small common section. */
3861 mips_elf_scom_section.name = ".scommon";
3862 mips_elf_scom_section.flags = SEC_IS_COMMON;
3863 mips_elf_scom_section.output_section = &mips_elf_scom_section;
3864 mips_elf_scom_section.symbol = &mips_elf_scom_symbol;
3865 mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr;
3866 mips_elf_scom_symbol.name = ".scommon";
3867 mips_elf_scom_symbol.flags = BSF_SECTION_SYM;
3868 mips_elf_scom_symbol.section = &mips_elf_scom_section;
3869 mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol;
3871 asym->section = &mips_elf_scom_section;
3872 asym->value = elfsym->internal_elf_sym.st_size;
3875 case SHN_MIPS_SUNDEFINED:
3876 asym->section = bfd_und_section_ptr;
3879 #if 0 /* for SGI_COMPAT */
3881 asym->section = mips_elf_text_section_ptr;
3885 asym->section = mips_elf_data_section_ptr;
3891 /* When creating an Irix 5 executable, we need REGINFO and RTPROC
3895 _bfd_mips_elf_additional_program_headers (abfd)
3901 /* See if we need a PT_MIPS_REGINFO segment. */
3902 s = bfd_get_section_by_name (abfd, ".reginfo");
3903 if (s && (s->flags & SEC_LOAD))
3906 /* See if we need a PT_MIPS_OPTIONS segment. */
3907 if (IRIX_COMPAT (abfd) == ict_irix6
3908 && bfd_get_section_by_name (abfd,
3909 MIPS_ELF_OPTIONS_SECTION_NAME (abfd)))
3912 /* See if we need a PT_MIPS_RTPROC segment. */
3913 if (IRIX_COMPAT (abfd) == ict_irix5
3914 && bfd_get_section_by_name (abfd, ".dynamic")
3915 && bfd_get_section_by_name (abfd, ".mdebug"))
3921 /* Modify the segment map for an Irix 5 executable. */
3924 _bfd_mips_elf_modify_segment_map (abfd)
3928 struct elf_segment_map *m, **pm;
3931 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3933 s = bfd_get_section_by_name (abfd, ".reginfo");
3934 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3936 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3937 if (m->p_type == PT_MIPS_REGINFO)
3942 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
3946 m->p_type = PT_MIPS_REGINFO;
3950 /* We want to put it after the PHDR and INTERP segments. */
3951 pm = &elf_tdata (abfd)->segment_map;
3953 && ((*pm)->p_type == PT_PHDR
3954 || (*pm)->p_type == PT_INTERP))
3962 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3963 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3964 PT_OPTIONS segement immediately following the program header
3966 if (IRIX_COMPAT (abfd) == ict_irix6)
3968 for (s = abfd->sections; s; s = s->next)
3969 if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS)
3974 struct elf_segment_map *options_segment;
3976 /* Usually, there's a program header table. But, sometimes
3977 there's not (like when running the `ld' testsuite). So,
3978 if there's no program header table, we just put the
3979 options segement at the end. */
3980 for (pm = &elf_tdata (abfd)->segment_map;
3983 if ((*pm)->p_type == PT_PHDR)
3986 amt = sizeof (struct elf_segment_map);
3987 options_segment = bfd_zalloc (abfd, amt);
3988 options_segment->next = *pm;
3989 options_segment->p_type = PT_MIPS_OPTIONS;
3990 options_segment->p_flags = PF_R;
3991 options_segment->p_flags_valid = true;
3992 options_segment->count = 1;
3993 options_segment->sections[0] = s;
3994 *pm = options_segment;
3999 if (IRIX_COMPAT (abfd) == ict_irix5)
4001 /* If there are .dynamic and .mdebug sections, we make a room
4002 for the RTPROC header. FIXME: Rewrite without section names. */
4003 if (bfd_get_section_by_name (abfd, ".interp") == NULL
4004 && bfd_get_section_by_name (abfd, ".dynamic") != NULL
4005 && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
4007 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
4008 if (m->p_type == PT_MIPS_RTPROC)
4013 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
4017 m->p_type = PT_MIPS_RTPROC;
4019 s = bfd_get_section_by_name (abfd, ".rtproc");
4024 m->p_flags_valid = 1;
4032 /* We want to put it after the DYNAMIC segment. */
4033 pm = &elf_tdata (abfd)->segment_map;
4034 while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
4044 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
4045 .dynstr, .dynsym, and .hash sections, and everything in
4047 for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL;
4049 if ((*pm)->p_type == PT_DYNAMIC)
4052 if (m != NULL && IRIX_COMPAT (abfd) == ict_none)
4054 /* For a normal mips executable the permissions for the PT_DYNAMIC
4055 segment are read, write and execute. We do that here since
4056 the code in elf.c sets only the read permission. This matters
4057 sometimes for the dynamic linker. */
4058 if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
4060 m->p_flags = PF_R | PF_W | PF_X;
4061 m->p_flags_valid = 1;
4065 && m->count == 1 && strcmp (m->sections[0]->name, ".dynamic") == 0)
4067 static const char *sec_names[] =
4069 ".dynamic", ".dynstr", ".dynsym", ".hash"
4073 struct elf_segment_map *n;
4077 for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
4079 s = bfd_get_section_by_name (abfd, sec_names[i]);
4080 if (s != NULL && (s->flags & SEC_LOAD) != 0)
4086 sz = s->_cooked_size;
4089 if (high < s->vma + sz)
4095 for (s = abfd->sections; s != NULL; s = s->next)
4096 if ((s->flags & SEC_LOAD) != 0
4099 + (s->_cooked_size !=
4100 0 ? s->_cooked_size : s->_raw_size)) <= high))
4103 amt = sizeof *n + (bfd_size_type) (c - 1) * sizeof (asection *);
4104 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
4111 for (s = abfd->sections; s != NULL; s = s->next)
4113 if ((s->flags & SEC_LOAD) != 0
4116 + (s->_cooked_size != 0 ?
4117 s->_cooked_size : s->_raw_size)) <= high))
4131 /* The structure of the runtime procedure descriptor created by the
4132 loader for use by the static exception system. */
4134 typedef struct runtime_pdr {
4135 bfd_vma adr; /* memory address of start of procedure */
4136 long regmask; /* save register mask */
4137 long regoffset; /* save register offset */
4138 long fregmask; /* save floating point register mask */
4139 long fregoffset; /* save floating point register offset */
4140 long frameoffset; /* frame size */
4141 short framereg; /* frame pointer register */
4142 short pcreg; /* offset or reg of return pc */
4143 long irpss; /* index into the runtime string table */
4145 struct exception_info *exception_info;/* pointer to exception array */
4147 #define cbRPDR sizeof (RPDR)
4148 #define rpdNil ((pRPDR) 0)
4150 /* Swap RPDR (runtime procedure table entry) for output. */
4152 static void ecoff_swap_rpdr_out
4153 PARAMS ((bfd *, const RPDR *, struct rpdr_ext *));
4156 ecoff_swap_rpdr_out (abfd, in, ex)
4159 struct rpdr_ext *ex;
4161 /* ECOFF_PUT_OFF was defined in ecoffswap.h. */
4162 ECOFF_PUT_OFF (abfd, in->adr, ex->p_adr);
4163 H_PUT_32 (abfd, in->regmask, ex->p_regmask);
4164 H_PUT_32 (abfd, in->regoffset, ex->p_regoffset);
4165 H_PUT_32 (abfd, in->fregmask, ex->p_fregmask);
4166 H_PUT_32 (abfd, in->fregoffset, ex->p_fregoffset);
4167 H_PUT_32 (abfd, in->frameoffset, ex->p_frameoffset);
4169 H_PUT_16 (abfd, in->framereg, ex->p_framereg);
4170 H_PUT_16 (abfd, in->pcreg, ex->p_pcreg);
4172 H_PUT_32 (abfd, in->irpss, ex->p_irpss);
4174 ECOFF_PUT_OFF (abfd, in->exception_info, ex->p_exception_info);
4178 /* Read ECOFF debugging information from a .mdebug section into a
4179 ecoff_debug_info structure. */
4182 _bfd_mips_elf_read_ecoff_info (abfd, section, debug)
4185 struct ecoff_debug_info *debug;
4188 const struct ecoff_debug_swap *swap;
4189 char *ext_hdr = NULL;
4191 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4192 memset (debug, 0, sizeof (*debug));
4194 ext_hdr = (char *) bfd_malloc (swap->external_hdr_size);
4195 if (ext_hdr == NULL && swap->external_hdr_size != 0)
4198 if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
4199 swap->external_hdr_size)
4203 symhdr = &debug->symbolic_header;
4204 (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
4206 /* The symbolic header contains absolute file offsets and sizes to
4208 #define READ(ptr, offset, count, size, type) \
4209 if (symhdr->count == 0) \
4210 debug->ptr = NULL; \
4213 bfd_size_type amt = (bfd_size_type) size * symhdr->count; \
4214 debug->ptr = (type) bfd_malloc (amt); \
4215 if (debug->ptr == NULL) \
4216 goto error_return; \
4217 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
4218 || bfd_bread (debug->ptr, amt, abfd) != amt) \
4219 goto error_return; \
4222 READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
4223 READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
4224 READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
4225 READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
4226 READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
4227 READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
4229 READ (ss, cbSsOffset, issMax, sizeof (char), char *);
4230 READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
4231 READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
4232 READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
4233 READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
4237 debug->adjust = NULL;
4242 if (ext_hdr != NULL)
4244 if (debug->line != NULL)
4246 if (debug->external_dnr != NULL)
4247 free (debug->external_dnr);
4248 if (debug->external_pdr != NULL)
4249 free (debug->external_pdr);
4250 if (debug->external_sym != NULL)
4251 free (debug->external_sym);
4252 if (debug->external_opt != NULL)
4253 free (debug->external_opt);
4254 if (debug->external_aux != NULL)
4255 free (debug->external_aux);
4256 if (debug->ss != NULL)
4258 if (debug->ssext != NULL)
4259 free (debug->ssext);
4260 if (debug->external_fdr != NULL)
4261 free (debug->external_fdr);
4262 if (debug->external_rfd != NULL)
4263 free (debug->external_rfd);
4264 if (debug->external_ext != NULL)
4265 free (debug->external_ext);
4269 /* MIPS ELF local labels start with '$', not 'L'. */
4272 mips_elf_is_local_label_name (abfd, name)
4279 /* On Irix 6, the labels go back to starting with '.', so we accept
4280 the generic ELF local label syntax as well. */
4281 return _bfd_elf_is_local_label_name (abfd, name);
4284 /* MIPS ELF uses a special find_nearest_line routine in order the
4285 handle the ECOFF debugging information. */
4287 struct mips_elf_find_line
4289 struct ecoff_debug_info d;
4290 struct ecoff_find_line i;
4294 _bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
4295 functionname_ptr, line_ptr)
4300 const char **filename_ptr;
4301 const char **functionname_ptr;
4302 unsigned int *line_ptr;
4306 if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
4307 filename_ptr, functionname_ptr,
4311 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
4312 filename_ptr, functionname_ptr,
4314 (unsigned) (ABI_64_P (abfd) ? 8 : 0),
4315 &elf_tdata (abfd)->dwarf2_find_line_info))
4318 msec = bfd_get_section_by_name (abfd, ".mdebug");
4322 struct mips_elf_find_line *fi;
4323 const struct ecoff_debug_swap * const swap =
4324 get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4326 /* If we are called during a link, mips_elf_final_link may have
4327 cleared the SEC_HAS_CONTENTS field. We force it back on here
4328 if appropriate (which it normally will be). */
4329 origflags = msec->flags;
4330 if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
4331 msec->flags |= SEC_HAS_CONTENTS;
4333 fi = elf_tdata (abfd)->find_line_info;
4336 bfd_size_type external_fdr_size;
4339 struct fdr *fdr_ptr;
4340 bfd_size_type amt = sizeof (struct mips_elf_find_line);
4342 fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt);
4345 msec->flags = origflags;
4349 if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
4351 msec->flags = origflags;
4355 /* Swap in the FDR information. */
4356 amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr);
4357 fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt);
4358 if (fi->d.fdr == NULL)
4360 msec->flags = origflags;
4363 external_fdr_size = swap->external_fdr_size;
4364 fdr_ptr = fi->d.fdr;
4365 fraw_src = (char *) fi->d.external_fdr;
4366 fraw_end = (fraw_src
4367 + fi->d.symbolic_header.ifdMax * external_fdr_size);
4368 for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
4369 (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
4371 elf_tdata (abfd)->find_line_info = fi;
4373 /* Note that we don't bother to ever free this information.
4374 find_nearest_line is either called all the time, as in
4375 objdump -l, so the information should be saved, or it is
4376 rarely called, as in ld error messages, so the memory
4377 wasted is unimportant. Still, it would probably be a
4378 good idea for free_cached_info to throw it away. */
4381 if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
4382 &fi->i, filename_ptr, functionname_ptr,
4385 msec->flags = origflags;
4389 msec->flags = origflags;
4392 /* Fall back on the generic ELF find_nearest_line routine. */
4394 return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
4395 filename_ptr, functionname_ptr,
4399 /* The mips16 compiler uses a couple of special sections to handle
4400 floating point arguments.
4402 Section names that look like .mips16.fn.FNNAME contain stubs that
4403 copy floating point arguments from the fp regs to the gp regs and
4404 then jump to FNNAME. If any 32 bit function calls FNNAME, the
4405 call should be redirected to the stub instead. If no 32 bit
4406 function calls FNNAME, the stub should be discarded. We need to
4407 consider any reference to the function, not just a call, because
4408 if the address of the function is taken we will need the stub,
4409 since the address might be passed to a 32 bit function.
4411 Section names that look like .mips16.call.FNNAME contain stubs
4412 that copy floating point arguments from the gp regs to the fp
4413 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
4414 then any 16 bit function that calls FNNAME should be redirected
4415 to the stub instead. If FNNAME is not a 32 bit function, the
4416 stub should be discarded.
4418 .mips16.call.fp.FNNAME sections are similar, but contain stubs
4419 which call FNNAME and then copy the return value from the fp regs
4420 to the gp regs. These stubs store the return value in $18 while
4421 calling FNNAME; any function which might call one of these stubs
4422 must arrange to save $18 around the call. (This case is not
4423 needed for 32 bit functions that call 16 bit functions, because
4424 16 bit functions always return floating point values in both
4427 Note that in all cases FNNAME might be defined statically.
4428 Therefore, FNNAME is not used literally. Instead, the relocation
4429 information will indicate which symbol the section is for.
4431 We record any stubs that we find in the symbol table. */
4433 #define FN_STUB ".mips16.fn."
4434 #define CALL_STUB ".mips16.call."
4435 #define CALL_FP_STUB ".mips16.call.fp."
4437 /* MIPS ELF linker hash table. */
4439 struct mips_elf_link_hash_table
4441 struct elf_link_hash_table root;
4443 /* We no longer use this. */
4444 /* String section indices for the dynamic section symbols. */
4445 bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES];
4447 /* The number of .rtproc entries. */
4448 bfd_size_type procedure_count;
4449 /* The size of the .compact_rel section (if SGI_COMPAT). */
4450 bfd_size_type compact_rel_size;
4451 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
4452 entry is set to the address of __rld_obj_head as in Irix 5. */
4453 boolean use_rld_obj_head;
4454 /* This is the value of the __rld_map or __rld_obj_head symbol. */
4456 /* This is set if we see any mips16 stub sections. */
4457 boolean mips16_stubs_seen;
4460 /* Look up an entry in a MIPS ELF linker hash table. */
4462 #define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
4463 ((struct mips_elf_link_hash_entry *) \
4464 elf_link_hash_lookup (&(table)->root, (string), (create), \
4467 /* Traverse a MIPS ELF linker hash table. */
4469 #define mips_elf_link_hash_traverse(table, func, info) \
4470 (elf_link_hash_traverse \
4472 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
4475 /* Get the MIPS ELF linker hash table from a link_info structure. */
4477 #define mips_elf_hash_table(p) \
4478 ((struct mips_elf_link_hash_table *) ((p)->hash))
4480 static boolean mips_elf_output_extsym
4481 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
4483 /* Create an entry in a MIPS ELF linker hash table. */
4485 static struct bfd_hash_entry *
4486 mips_elf_link_hash_newfunc (entry, table, string)
4487 struct bfd_hash_entry *entry;
4488 struct bfd_hash_table *table;
4491 struct mips_elf_link_hash_entry *ret =
4492 (struct mips_elf_link_hash_entry *) entry;
4494 /* Allocate the structure if it has not already been allocated by a
4496 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4497 ret = ((struct mips_elf_link_hash_entry *)
4498 bfd_hash_allocate (table,
4499 sizeof (struct mips_elf_link_hash_entry)));
4500 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4501 return (struct bfd_hash_entry *) ret;
4503 /* Call the allocation method of the superclass. */
4504 ret = ((struct mips_elf_link_hash_entry *)
4505 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
4507 if (ret != (struct mips_elf_link_hash_entry *) NULL)
4509 /* Set local fields. */
4510 memset (&ret->esym, 0, sizeof (EXTR));
4511 /* We use -2 as a marker to indicate that the information has
4512 not been set. -1 means there is no associated ifd. */
4514 ret->possibly_dynamic_relocs = 0;
4515 ret->readonly_reloc = false;
4516 ret->min_dyn_reloc_index = 0;
4517 ret->no_fn_stub = false;
4518 ret->fn_stub = NULL;
4519 ret->need_fn_stub = false;
4520 ret->call_stub = NULL;
4521 ret->call_fp_stub = NULL;
4524 return (struct bfd_hash_entry *) ret;
4528 _bfd_mips_elf_hide_symbol (info, entry)
4529 struct bfd_link_info *info;
4530 struct elf_link_hash_entry *entry;
4534 struct mips_got_info *g;
4535 struct mips_elf_link_hash_entry *h;
4536 h = (struct mips_elf_link_hash_entry *) entry;
4537 dynobj = elf_hash_table (info)->dynobj;
4538 got = bfd_get_section_by_name (dynobj, ".got");
4539 g = (struct mips_got_info *) elf_section_data (got)->tdata;
4541 h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
4542 h->root.plt.offset = (bfd_vma) -1;
4543 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
4544 h->root.dynindx = -1;
4546 /* FIXME: Do we allocate too much GOT space here? */
4548 got->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
4551 /* Create a MIPS ELF linker hash table. */
4553 struct bfd_link_hash_table *
4554 _bfd_mips_elf_link_hash_table_create (abfd)
4557 struct mips_elf_link_hash_table *ret;
4558 bfd_size_type amt = sizeof (struct mips_elf_link_hash_table);
4560 ret = (struct mips_elf_link_hash_table *) bfd_alloc (abfd, amt);
4561 if (ret == (struct mips_elf_link_hash_table *) NULL)
4564 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
4565 mips_elf_link_hash_newfunc))
4567 bfd_release (abfd, ret);
4572 /* We no longer use this. */
4573 for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++)
4574 ret->dynsym_sec_strindex[i] = (bfd_size_type) -1;
4576 ret->procedure_count = 0;
4577 ret->compact_rel_size = 0;
4578 ret->use_rld_obj_head = false;
4580 ret->mips16_stubs_seen = false;
4582 return &ret->root.root;
4585 /* Hook called by the linker routine which adds symbols from an object
4586 file. We must handle the special MIPS section numbers here. */
4589 _bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4591 struct bfd_link_info *info;
4592 const Elf_Internal_Sym *sym;
4594 flagword *flagsp ATTRIBUTE_UNUSED;
4598 if (SGI_COMPAT (abfd)
4599 && (abfd->flags & DYNAMIC) != 0
4600 && strcmp (*namep, "_rld_new_interface") == 0)
4602 /* Skip Irix 5 rld entry name. */
4607 switch (sym->st_shndx)
4610 /* Common symbols less than the GP size are automatically
4611 treated as SHN_MIPS_SCOMMON symbols. */
4612 if (sym->st_size > elf_gp_size (abfd)
4613 || IRIX_COMPAT (abfd) == ict_irix6)
4616 case SHN_MIPS_SCOMMON:
4617 *secp = bfd_make_section_old_way (abfd, ".scommon");
4618 (*secp)->flags |= SEC_IS_COMMON;
4619 *valp = sym->st_size;
4623 /* This section is used in a shared object. */
4624 if (elf_tdata (abfd)->elf_text_section == NULL)
4626 asymbol *elf_text_symbol;
4627 asection *elf_text_section;
4628 bfd_size_type amt = sizeof (asection);
4630 elf_text_section = bfd_zalloc (abfd, amt);
4631 if (elf_text_section == NULL)
4634 amt = sizeof (asymbol);
4635 elf_text_symbol = bfd_zalloc (abfd, amt);
4636 if (elf_text_symbol == NULL)
4639 /* Initialize the section. */
4641 elf_tdata (abfd)->elf_text_section = elf_text_section;
4642 elf_tdata (abfd)->elf_text_symbol = elf_text_symbol;
4644 elf_text_section->symbol = elf_text_symbol;
4645 elf_text_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_text_symbol;
4647 elf_text_section->name = ".text";
4648 elf_text_section->flags = SEC_NO_FLAGS;
4649 elf_text_section->output_section = NULL;
4650 elf_text_section->owner = abfd;
4651 elf_text_symbol->name = ".text";
4652 elf_text_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4653 elf_text_symbol->section = elf_text_section;
4655 /* This code used to do *secp = bfd_und_section_ptr if
4656 info->shared. I don't know why, and that doesn't make sense,
4657 so I took it out. */
4658 *secp = elf_tdata (abfd)->elf_text_section;
4661 case SHN_MIPS_ACOMMON:
4662 /* Fall through. XXX Can we treat this as allocated data? */
4664 /* This section is used in a shared object. */
4665 if (elf_tdata (abfd)->elf_data_section == NULL)
4667 asymbol *elf_data_symbol;
4668 asection *elf_data_section;
4669 bfd_size_type amt = sizeof (asection);
4671 elf_data_section = bfd_zalloc (abfd, amt);
4672 if (elf_data_section == NULL)
4675 amt = sizeof (asymbol);
4676 elf_data_symbol = bfd_zalloc (abfd, amt);
4677 if (elf_data_symbol == NULL)
4680 /* Initialize the section. */
4682 elf_tdata (abfd)->elf_data_section = elf_data_section;
4683 elf_tdata (abfd)->elf_data_symbol = elf_data_symbol;
4685 elf_data_section->symbol = elf_data_symbol;
4686 elf_data_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_data_symbol;
4688 elf_data_section->name = ".data";
4689 elf_data_section->flags = SEC_NO_FLAGS;
4690 elf_data_section->output_section = NULL;
4691 elf_data_section->owner = abfd;
4692 elf_data_symbol->name = ".data";
4693 elf_data_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4694 elf_data_symbol->section = elf_data_section;
4696 /* This code used to do *secp = bfd_und_section_ptr if
4697 info->shared. I don't know why, and that doesn't make sense,
4698 so I took it out. */
4699 *secp = elf_tdata (abfd)->elf_data_section;
4702 case SHN_MIPS_SUNDEFINED:
4703 *secp = bfd_und_section_ptr;
4707 if (SGI_COMPAT (abfd)
4709 && info->hash->creator == abfd->xvec
4710 && strcmp (*namep, "__rld_obj_head") == 0)
4712 struct elf_link_hash_entry *h;
4714 /* Mark __rld_obj_head as dynamic. */
4716 if (! (_bfd_generic_link_add_one_symbol
4717 (info, abfd, *namep, BSF_GLOBAL, *secp,
4718 (bfd_vma) *valp, (const char *) NULL, false,
4719 get_elf_backend_data (abfd)->collect,
4720 (struct bfd_link_hash_entry **) &h)))
4722 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4723 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4724 h->type = STT_OBJECT;
4726 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
4729 mips_elf_hash_table (info)->use_rld_obj_head = true;
4732 /* If this is a mips16 text symbol, add 1 to the value to make it
4733 odd. This will cause something like .word SYM to come up with
4734 the right value when it is loaded into the PC. */
4735 if (sym->st_other == STO_MIPS16)
4741 /* Structure used to pass information to mips_elf_output_extsym. */
4746 struct bfd_link_info *info;
4747 struct ecoff_debug_info *debug;
4748 const struct ecoff_debug_swap *swap;
4752 /* This routine is used to write out ECOFF debugging external symbol
4753 information. It is called via mips_elf_link_hash_traverse. The
4754 ECOFF external symbol information must match the ELF external
4755 symbol information. Unfortunately, at this point we don't know
4756 whether a symbol is required by reloc information, so the two
4757 tables may wind up being different. We must sort out the external
4758 symbol information before we can set the final size of the .mdebug
4759 section, and we must set the size of the .mdebug section before we
4760 can relocate any sections, and we can't know which symbols are
4761 required by relocation until we relocate the sections.
4762 Fortunately, it is relatively unlikely that any symbol will be
4763 stripped but required by a reloc. In particular, it can not happen
4764 when generating a final executable. */
4767 mips_elf_output_extsym (h, data)
4768 struct mips_elf_link_hash_entry *h;
4771 struct extsym_info *einfo = (struct extsym_info *) data;
4773 asection *sec, *output_section;
4775 if (h->root.indx == -2)
4777 else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4778 || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
4779 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4780 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
4782 else if (einfo->info->strip == strip_all
4783 || (einfo->info->strip == strip_some
4784 && bfd_hash_lookup (einfo->info->keep_hash,
4785 h->root.root.root.string,
4786 false, false) == NULL))
4794 if (h->esym.ifd == -2)
4797 h->esym.cobol_main = 0;
4798 h->esym.weakext = 0;
4799 h->esym.reserved = 0;
4800 h->esym.ifd = ifdNil;
4801 h->esym.asym.value = 0;
4802 h->esym.asym.st = stGlobal;
4804 if (h->root.root.type == bfd_link_hash_undefined
4805 || h->root.root.type == bfd_link_hash_undefweak)
4809 /* Use undefined class. Also, set class and type for some
4811 name = h->root.root.root.string;
4812 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
4813 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
4815 h->esym.asym.sc = scData;
4816 h->esym.asym.st = stLabel;
4817 h->esym.asym.value = 0;
4819 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
4821 h->esym.asym.sc = scAbs;
4822 h->esym.asym.st = stLabel;
4823 h->esym.asym.value =
4824 mips_elf_hash_table (einfo->info)->procedure_count;
4826 else if (strcmp (name, "_gp_disp") == 0)
4828 h->esym.asym.sc = scAbs;
4829 h->esym.asym.st = stLabel;
4830 h->esym.asym.value = elf_gp (einfo->abfd);
4833 h->esym.asym.sc = scUndefined;
4835 else if (h->root.root.type != bfd_link_hash_defined
4836 && h->root.root.type != bfd_link_hash_defweak)
4837 h->esym.asym.sc = scAbs;
4842 sec = h->root.root.u.def.section;
4843 output_section = sec->output_section;
4845 /* When making a shared library and symbol h is the one from
4846 the another shared library, OUTPUT_SECTION may be null. */
4847 if (output_section == NULL)
4848 h->esym.asym.sc = scUndefined;
4851 name = bfd_section_name (output_section->owner, output_section);
4853 if (strcmp (name, ".text") == 0)
4854 h->esym.asym.sc = scText;
4855 else if (strcmp (name, ".data") == 0)
4856 h->esym.asym.sc = scData;
4857 else if (strcmp (name, ".sdata") == 0)
4858 h->esym.asym.sc = scSData;
4859 else if (strcmp (name, ".rodata") == 0
4860 || strcmp (name, ".rdata") == 0)
4861 h->esym.asym.sc = scRData;
4862 else if (strcmp (name, ".bss") == 0)
4863 h->esym.asym.sc = scBss;
4864 else if (strcmp (name, ".sbss") == 0)
4865 h->esym.asym.sc = scSBss;
4866 else if (strcmp (name, ".init") == 0)
4867 h->esym.asym.sc = scInit;
4868 else if (strcmp (name, ".fini") == 0)
4869 h->esym.asym.sc = scFini;
4871 h->esym.asym.sc = scAbs;
4875 h->esym.asym.reserved = 0;
4876 h->esym.asym.index = indexNil;
4879 if (h->root.root.type == bfd_link_hash_common)
4880 h->esym.asym.value = h->root.root.u.c.size;
4881 else if (h->root.root.type == bfd_link_hash_defined
4882 || h->root.root.type == bfd_link_hash_defweak)
4884 if (h->esym.asym.sc == scCommon)
4885 h->esym.asym.sc = scBss;
4886 else if (h->esym.asym.sc == scSCommon)
4887 h->esym.asym.sc = scSBss;
4889 sec = h->root.root.u.def.section;
4890 output_section = sec->output_section;
4891 if (output_section != NULL)
4892 h->esym.asym.value = (h->root.root.u.def.value
4893 + sec->output_offset
4894 + output_section->vma);
4896 h->esym.asym.value = 0;
4898 else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4900 struct mips_elf_link_hash_entry *hd = h;
4901 boolean no_fn_stub = h->no_fn_stub;
4903 while (hd->root.root.type == bfd_link_hash_indirect)
4905 hd = (struct mips_elf_link_hash_entry *)h->root.root.u.i.link;
4906 no_fn_stub = no_fn_stub || hd->no_fn_stub;
4911 /* Set type and value for a symbol with a function stub. */
4912 h->esym.asym.st = stProc;
4913 sec = hd->root.root.u.def.section;
4915 h->esym.asym.value = 0;
4918 output_section = sec->output_section;
4919 if (output_section != NULL)
4920 h->esym.asym.value = (hd->root.plt.offset
4921 + sec->output_offset
4922 + output_section->vma);
4924 h->esym.asym.value = 0;
4932 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
4933 h->root.root.root.string,
4936 einfo->failed = true;
4943 /* Create a runtime procedure table from the .mdebug section. */
4946 mips_elf_create_procedure_table (handle, abfd, info, s, debug)
4949 struct bfd_link_info *info;
4951 struct ecoff_debug_info *debug;
4953 const struct ecoff_debug_swap *swap;
4954 HDRR *hdr = &debug->symbolic_header;
4956 struct rpdr_ext *erp;
4958 struct pdr_ext *epdr;
4959 struct sym_ext *esym;
4963 bfd_size_type count;
4964 unsigned long sindex;
4968 const char *no_name_func = _("static procedure (no name)");
4976 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4978 sindex = strlen (no_name_func) + 1;
4979 count = hdr->ipdMax;
4982 size = swap->external_pdr_size;
4984 epdr = (struct pdr_ext *) bfd_malloc (size * count);
4988 if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr))
4991 size = sizeof (RPDR);
4992 rp = rpdr = (RPDR *) bfd_malloc (size * count);
4996 size = sizeof (char *);
4997 sv = (char **) bfd_malloc (size * count);
5001 count = hdr->isymMax;
5002 size = swap->external_sym_size;
5003 esym = (struct sym_ext *) bfd_malloc (size * count);
5007 if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym))
5010 count = hdr->issMax;
5011 ss = (char *) bfd_malloc (count);
5014 if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss))
5017 count = hdr->ipdMax;
5018 for (i = 0; i < (unsigned long) count; i++, rp++)
5020 (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr);
5021 (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym);
5022 rp->adr = sym.value;
5023 rp->regmask = pdr.regmask;
5024 rp->regoffset = pdr.regoffset;
5025 rp->fregmask = pdr.fregmask;
5026 rp->fregoffset = pdr.fregoffset;
5027 rp->frameoffset = pdr.frameoffset;
5028 rp->framereg = pdr.framereg;
5029 rp->pcreg = pdr.pcreg;
5031 sv[i] = ss + sym.iss;
5032 sindex += strlen (sv[i]) + 1;
5036 size = sizeof (struct rpdr_ext) * (count + 2) + sindex;
5037 size = BFD_ALIGN (size, 16);
5038 rtproc = (PTR) bfd_alloc (abfd, size);
5041 mips_elf_hash_table (info)->procedure_count = 0;
5045 mips_elf_hash_table (info)->procedure_count = count + 2;
5047 erp = (struct rpdr_ext *) rtproc;
5048 memset (erp, 0, sizeof (struct rpdr_ext));
5050 str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2);
5051 strcpy (str, no_name_func);
5052 str += strlen (no_name_func) + 1;
5053 for (i = 0; i < count; i++)
5055 ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i);
5056 strcpy (str, sv[i]);
5057 str += strlen (sv[i]) + 1;
5059 ECOFF_PUT_OFF (abfd, -1, (erp + count)->p_adr);
5061 /* Set the size and contents of .rtproc section. */
5062 s->_raw_size = size;
5063 s->contents = (bfd_byte *) rtproc;
5065 /* Skip this section later on (I don't think this currently
5066 matters, but someday it might). */
5067 s->link_order_head = (struct bfd_link_order *) NULL;
5096 /* A comparison routine used to sort .gptab entries. */
5099 gptab_compare (p1, p2)
5103 const Elf32_gptab *a1 = (const Elf32_gptab *) p1;
5104 const Elf32_gptab *a2 = (const Elf32_gptab *) p2;
5106 return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value;
5109 /* We need to use a special link routine to handle the .reginfo and
5110 the .mdebug sections. We need to merge all instances of these
5111 sections together, not write them all out sequentially. */
5114 _bfd_mips_elf_final_link (abfd, info)
5116 struct bfd_link_info *info;
5120 struct bfd_link_order *p;
5121 asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
5122 asection *rtproc_sec;
5123 Elf32_RegInfo reginfo;
5124 struct ecoff_debug_info debug;
5125 const struct ecoff_debug_swap *swap
5126 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
5127 HDRR *symhdr = &debug.symbolic_header;
5128 PTR mdebug_handle = NULL;
5134 static const char * const secname[] =
5136 ".text", ".init", ".fini", ".data",
5137 ".rodata", ".sdata", ".sbss", ".bss"
5139 static const int sc[] =
5141 scText, scInit, scFini, scData,
5142 scRData, scSData, scSBss, scBss
5145 /* If all the things we linked together were PIC, but we're
5146 producing an executable (rather than a shared object), then the
5147 resulting file is CPIC (i.e., it calls PIC code.) */
5149 && !info->relocateable
5150 && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
5152 elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
5153 elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
5156 /* We'd carefully arranged the dynamic symbol indices, and then the
5157 generic size_dynamic_sections renumbered them out from under us.
5158 Rather than trying somehow to prevent the renumbering, just do
5160 if (elf_hash_table (info)->dynamic_sections_created)
5164 struct mips_got_info *g;
5166 /* When we resort, we must tell mips_elf_sort_hash_table what
5167 the lowest index it may use is. That's the number of section
5168 symbols we're going to add. The generic ELF linker only
5169 adds these symbols when building a shared object. Note that
5170 we count the sections after (possibly) removing the .options
5172 if (!mips_elf_sort_hash_table (info, (info->shared
5173 ? bfd_count_sections (abfd) + 1
5177 /* Make sure we didn't grow the global .got region. */
5178 dynobj = elf_hash_table (info)->dynobj;
5179 got = bfd_get_section_by_name (dynobj, ".got");
5180 g = (struct mips_got_info *) elf_section_data (got)->tdata;
5182 if (g->global_gotsym != NULL)
5183 BFD_ASSERT ((elf_hash_table (info)->dynsymcount
5184 - g->global_gotsym->dynindx)
5185 <= g->global_gotno);
5188 /* On IRIX5, we omit the .options section. On IRIX6, however, we
5189 include it, even though we don't process it quite right. (Some
5190 entries are supposed to be merged.) Empirically, we seem to be
5191 better off including it then not. */
5192 if (IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
5193 for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
5195 if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
5197 for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
5198 if (p->type == bfd_indirect_link_order)
5199 p->u.indirect.section->flags &= ~SEC_HAS_CONTENTS;
5200 (*secpp)->link_order_head = NULL;
5201 *secpp = (*secpp)->next;
5202 --abfd->section_count;
5208 /* Get a value for the GP register. */
5209 if (elf_gp (abfd) == 0)
5211 struct bfd_link_hash_entry *h;
5213 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
5214 if (h != (struct bfd_link_hash_entry *) NULL
5215 && h->type == bfd_link_hash_defined)
5216 elf_gp (abfd) = (h->u.def.value
5217 + h->u.def.section->output_section->vma
5218 + h->u.def.section->output_offset);
5219 else if (info->relocateable)
5223 /* Find the GP-relative section with the lowest offset. */
5225 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5227 && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
5230 /* And calculate GP relative to that. */
5231 elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd);
5235 /* If the relocate_section function needs to do a reloc
5236 involving the GP value, it should make a reloc_dangerous
5237 callback to warn that GP is not defined. */
5241 /* Go through the sections and collect the .reginfo and .mdebug
5245 gptab_data_sec = NULL;
5246 gptab_bss_sec = NULL;
5247 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5249 if (strcmp (o->name, ".reginfo") == 0)
5251 memset (®info, 0, sizeof reginfo);
5253 /* We have found the .reginfo section in the output file.
5254 Look through all the link_orders comprising it and merge
5255 the information together. */
5256 for (p = o->link_order_head;
5257 p != (struct bfd_link_order *) NULL;
5260 asection *input_section;
5262 Elf32_External_RegInfo ext;
5265 if (p->type != bfd_indirect_link_order)
5267 if (p->type == bfd_fill_link_order)
5272 input_section = p->u.indirect.section;
5273 input_bfd = input_section->owner;
5275 /* The linker emulation code has probably clobbered the
5276 size to be zero bytes. */
5277 if (input_section->_raw_size == 0)
5278 input_section->_raw_size = sizeof (Elf32_External_RegInfo);
5280 if (! bfd_get_section_contents (input_bfd, input_section,
5283 (bfd_size_type) sizeof ext))
5286 bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub);
5288 reginfo.ri_gprmask |= sub.ri_gprmask;
5289 reginfo.ri_cprmask[0] |= sub.ri_cprmask[0];
5290 reginfo.ri_cprmask[1] |= sub.ri_cprmask[1];
5291 reginfo.ri_cprmask[2] |= sub.ri_cprmask[2];
5292 reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
5294 /* ri_gp_value is set by the function
5295 mips_elf32_section_processing when the section is
5296 finally written out. */
5298 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5299 elf_link_input_bfd ignores this section. */
5300 input_section->flags &= ~SEC_HAS_CONTENTS;
5303 /* Size has been set in mips_elf_always_size_sections */
5304 BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo));
5306 /* Skip this section later on (I don't think this currently
5307 matters, but someday it might). */
5308 o->link_order_head = (struct bfd_link_order *) NULL;
5313 if (strcmp (o->name, ".mdebug") == 0)
5315 struct extsym_info einfo;
5318 /* We have found the .mdebug section in the output file.
5319 Look through all the link_orders comprising it and merge
5320 the information together. */
5321 symhdr->magic = swap->sym_magic;
5322 /* FIXME: What should the version stamp be? */
5324 symhdr->ilineMax = 0;
5328 symhdr->isymMax = 0;
5329 symhdr->ioptMax = 0;
5330 symhdr->iauxMax = 0;
5332 symhdr->issExtMax = 0;
5335 symhdr->iextMax = 0;
5337 /* We accumulate the debugging information itself in the
5338 debug_info structure. */
5340 debug.external_dnr = NULL;
5341 debug.external_pdr = NULL;
5342 debug.external_sym = NULL;
5343 debug.external_opt = NULL;
5344 debug.external_aux = NULL;
5346 debug.ssext = debug.ssext_end = NULL;
5347 debug.external_fdr = NULL;
5348 debug.external_rfd = NULL;
5349 debug.external_ext = debug.external_ext_end = NULL;
5351 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
5352 if (mdebug_handle == (PTR) NULL)
5356 esym.cobol_main = 0;
5360 esym.asym.iss = issNil;
5361 esym.asym.st = stLocal;
5362 esym.asym.reserved = 0;
5363 esym.asym.index = indexNil;
5365 for (i = 0; i < sizeof (secname) / sizeof (secname[0]); i++)
5367 esym.asym.sc = sc[i];
5368 s = bfd_get_section_by_name (abfd, secname[i]);
5371 esym.asym.value = s->vma;
5372 last = s->vma + s->_raw_size;
5375 esym.asym.value = last;
5376 if (!bfd_ecoff_debug_one_external (abfd, &debug, swap,
5381 for (p = o->link_order_head;
5382 p != (struct bfd_link_order *) NULL;
5385 asection *input_section;
5387 const struct ecoff_debug_swap *input_swap;
5388 struct ecoff_debug_info input_debug;
5392 if (p->type != bfd_indirect_link_order)
5394 if (p->type == bfd_fill_link_order)
5399 input_section = p->u.indirect.section;
5400 input_bfd = input_section->owner;
5402 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
5403 || (get_elf_backend_data (input_bfd)
5404 ->elf_backend_ecoff_debug_swap) == NULL)
5406 /* I don't know what a non MIPS ELF bfd would be
5407 doing with a .mdebug section, but I don't really
5408 want to deal with it. */
5412 input_swap = (get_elf_backend_data (input_bfd)
5413 ->elf_backend_ecoff_debug_swap);
5415 BFD_ASSERT (p->size == input_section->_raw_size);
5417 /* The ECOFF linking code expects that we have already
5418 read in the debugging information and set up an
5419 ecoff_debug_info structure, so we do that now. */
5420 if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
5424 if (! (bfd_ecoff_debug_accumulate
5425 (mdebug_handle, abfd, &debug, swap, input_bfd,
5426 &input_debug, input_swap, info)))
5429 /* Loop through the external symbols. For each one with
5430 interesting information, try to find the symbol in
5431 the linker global hash table and save the information
5432 for the output external symbols. */
5433 eraw_src = input_debug.external_ext;
5434 eraw_end = (eraw_src
5435 + (input_debug.symbolic_header.iextMax
5436 * input_swap->external_ext_size));
5438 eraw_src < eraw_end;
5439 eraw_src += input_swap->external_ext_size)
5443 struct mips_elf_link_hash_entry *h;
5445 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
5446 if (ext.asym.sc == scNil
5447 || ext.asym.sc == scUndefined
5448 || ext.asym.sc == scSUndefined)
5451 name = input_debug.ssext + ext.asym.iss;
5452 h = mips_elf_link_hash_lookup (mips_elf_hash_table (info),
5453 name, false, false, true);
5454 if (h == NULL || h->esym.ifd != -2)
5460 < input_debug.symbolic_header.ifdMax);
5461 ext.ifd = input_debug.ifdmap[ext.ifd];
5467 /* Free up the information we just read. */
5468 free (input_debug.line);
5469 free (input_debug.external_dnr);
5470 free (input_debug.external_pdr);
5471 free (input_debug.external_sym);
5472 free (input_debug.external_opt);
5473 free (input_debug.external_aux);
5474 free (input_debug.ss);
5475 free (input_debug.ssext);
5476 free (input_debug.external_fdr);
5477 free (input_debug.external_rfd);
5478 free (input_debug.external_ext);
5480 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5481 elf_link_input_bfd ignores this section. */
5482 input_section->flags &= ~SEC_HAS_CONTENTS;
5485 if (SGI_COMPAT (abfd) && info->shared)
5487 /* Create .rtproc section. */
5488 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5489 if (rtproc_sec == NULL)
5491 flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
5492 | SEC_LINKER_CREATED | SEC_READONLY);
5494 rtproc_sec = bfd_make_section (abfd, ".rtproc");
5495 if (rtproc_sec == NULL
5496 || ! bfd_set_section_flags (abfd, rtproc_sec, flags)
5497 || ! bfd_set_section_alignment (abfd, rtproc_sec, 4))
5501 if (! mips_elf_create_procedure_table (mdebug_handle, abfd,
5502 info, rtproc_sec, &debug))
5506 /* Build the external symbol information. */
5509 einfo.debug = &debug;
5511 einfo.failed = false;
5512 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
5513 mips_elf_output_extsym,
5518 /* Set the size of the .mdebug section. */
5519 o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
5521 /* Skip this section later on (I don't think this currently
5522 matters, but someday it might). */
5523 o->link_order_head = (struct bfd_link_order *) NULL;
5528 if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
5530 const char *subname;
5533 Elf32_External_gptab *ext_tab;
5536 /* The .gptab.sdata and .gptab.sbss sections hold
5537 information describing how the small data area would
5538 change depending upon the -G switch. These sections
5539 not used in executables files. */
5540 if (! info->relocateable)
5542 for (p = o->link_order_head;
5543 p != (struct bfd_link_order *) NULL;
5546 asection *input_section;
5548 if (p->type != bfd_indirect_link_order)
5550 if (p->type == bfd_fill_link_order)
5555 input_section = p->u.indirect.section;
5557 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5558 elf_link_input_bfd ignores this section. */
5559 input_section->flags &= ~SEC_HAS_CONTENTS;
5562 /* Skip this section later on (I don't think this
5563 currently matters, but someday it might). */
5564 o->link_order_head = (struct bfd_link_order *) NULL;
5566 /* Really remove the section. */
5567 for (secpp = &abfd->sections;
5569 secpp = &(*secpp)->next)
5571 *secpp = (*secpp)->next;
5572 --abfd->section_count;
5577 /* There is one gptab for initialized data, and one for
5578 uninitialized data. */
5579 if (strcmp (o->name, ".gptab.sdata") == 0)
5581 else if (strcmp (o->name, ".gptab.sbss") == 0)
5585 (*_bfd_error_handler)
5586 (_("%s: illegal section name `%s'"),
5587 bfd_get_filename (abfd), o->name);
5588 bfd_set_error (bfd_error_nonrepresentable_section);
5592 /* The linker script always combines .gptab.data and
5593 .gptab.sdata into .gptab.sdata, and likewise for
5594 .gptab.bss and .gptab.sbss. It is possible that there is
5595 no .sdata or .sbss section in the output file, in which
5596 case we must change the name of the output section. */
5597 subname = o->name + sizeof ".gptab" - 1;
5598 if (bfd_get_section_by_name (abfd, subname) == NULL)
5600 if (o == gptab_data_sec)
5601 o->name = ".gptab.data";
5603 o->name = ".gptab.bss";
5604 subname = o->name + sizeof ".gptab" - 1;
5605 BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
5608 /* Set up the first entry. */
5610 amt = c * sizeof (Elf32_gptab);
5611 tab = (Elf32_gptab *) bfd_malloc (amt);
5614 tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
5615 tab[0].gt_header.gt_unused = 0;
5617 /* Combine the input sections. */
5618 for (p = o->link_order_head;
5619 p != (struct bfd_link_order *) NULL;
5622 asection *input_section;
5626 bfd_size_type gpentry;
5628 if (p->type != bfd_indirect_link_order)
5630 if (p->type == bfd_fill_link_order)
5635 input_section = p->u.indirect.section;
5636 input_bfd = input_section->owner;
5638 /* Combine the gptab entries for this input section one
5639 by one. We know that the input gptab entries are
5640 sorted by ascending -G value. */
5641 size = bfd_section_size (input_bfd, input_section);
5643 for (gpentry = sizeof (Elf32_External_gptab);
5645 gpentry += sizeof (Elf32_External_gptab))
5647 Elf32_External_gptab ext_gptab;
5648 Elf32_gptab int_gptab;
5654 if (! (bfd_get_section_contents
5655 (input_bfd, input_section, (PTR) &ext_gptab,
5657 (bfd_size_type) sizeof (Elf32_External_gptab))))
5663 bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab,
5665 val = int_gptab.gt_entry.gt_g_value;
5666 add = int_gptab.gt_entry.gt_bytes - last;
5669 for (look = 1; look < c; look++)
5671 if (tab[look].gt_entry.gt_g_value >= val)
5672 tab[look].gt_entry.gt_bytes += add;
5674 if (tab[look].gt_entry.gt_g_value == val)
5680 Elf32_gptab *new_tab;
5683 /* We need a new table entry. */
5684 amt = (bfd_size_type) (c + 1) * sizeof (Elf32_gptab);
5685 new_tab = (Elf32_gptab *) bfd_realloc ((PTR) tab, amt);
5686 if (new_tab == NULL)
5692 tab[c].gt_entry.gt_g_value = val;
5693 tab[c].gt_entry.gt_bytes = add;
5695 /* Merge in the size for the next smallest -G
5696 value, since that will be implied by this new
5699 for (look = 1; look < c; look++)
5701 if (tab[look].gt_entry.gt_g_value < val
5703 || (tab[look].gt_entry.gt_g_value
5704 > tab[max].gt_entry.gt_g_value)))
5708 tab[c].gt_entry.gt_bytes +=
5709 tab[max].gt_entry.gt_bytes;
5714 last = int_gptab.gt_entry.gt_bytes;
5717 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5718 elf_link_input_bfd ignores this section. */
5719 input_section->flags &= ~SEC_HAS_CONTENTS;
5722 /* The table must be sorted by -G value. */
5724 qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
5726 /* Swap out the table. */
5727 amt = (bfd_size_type) c * sizeof (Elf32_External_gptab);
5728 ext_tab = (Elf32_External_gptab *) bfd_alloc (abfd, amt);
5729 if (ext_tab == NULL)
5735 for (j = 0; j < c; j++)
5736 bfd_mips_elf32_swap_gptab_out (abfd, tab + j, ext_tab + j);
5739 o->_raw_size = c * sizeof (Elf32_External_gptab);
5740 o->contents = (bfd_byte *) ext_tab;
5742 /* Skip this section later on (I don't think this currently
5743 matters, but someday it might). */
5744 o->link_order_head = (struct bfd_link_order *) NULL;
5748 /* Invoke the regular ELF backend linker to do all the work. */
5749 if (ABI_64_P (abfd))
5752 if (!bfd_elf64_bfd_final_link (abfd, info))
5759 else if (!bfd_elf32_bfd_final_link (abfd, info))
5762 /* Now write out the computed sections. */
5764 if (reginfo_sec != (asection *) NULL)
5766 Elf32_External_RegInfo ext;
5768 bfd_mips_elf32_swap_reginfo_out (abfd, ®info, &ext);
5769 if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext,
5770 (file_ptr) 0, (bfd_size_type) sizeof ext))
5774 if (mdebug_sec != (asection *) NULL)
5776 BFD_ASSERT (abfd->output_has_begun);
5777 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5779 mdebug_sec->filepos))
5782 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5785 if (gptab_data_sec != (asection *) NULL)
5787 if (! bfd_set_section_contents (abfd, gptab_data_sec,
5788 gptab_data_sec->contents,
5790 gptab_data_sec->_raw_size))
5794 if (gptab_bss_sec != (asection *) NULL)
5796 if (! bfd_set_section_contents (abfd, gptab_bss_sec,
5797 gptab_bss_sec->contents,
5799 gptab_bss_sec->_raw_size))
5803 if (SGI_COMPAT (abfd))
5805 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5806 if (rtproc_sec != NULL)
5808 if (! bfd_set_section_contents (abfd, rtproc_sec,
5809 rtproc_sec->contents,
5811 rtproc_sec->_raw_size))
5819 /* This function is called via qsort() to sort the dynamic relocation
5820 entries by increasing r_symndx value. */
5823 sort_dynamic_relocs (arg1, arg2)
5827 const Elf32_External_Rel *ext_reloc1 = (const Elf32_External_Rel *) arg1;
5828 const Elf32_External_Rel *ext_reloc2 = (const Elf32_External_Rel *) arg2;
5830 Elf_Internal_Rel int_reloc1;
5831 Elf_Internal_Rel int_reloc2;
5833 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc1, &int_reloc1);
5834 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc2, &int_reloc2);
5836 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
5839 /* Returns the GOT section for ABFD. */
5842 mips_elf_got_section (abfd)
5845 return bfd_get_section_by_name (abfd, ".got");
5848 /* Returns the GOT information associated with the link indicated by
5849 INFO. If SGOTP is non-NULL, it is filled in with the GOT
5852 static struct mips_got_info *
5853 mips_elf_got_info (abfd, sgotp)
5858 struct mips_got_info *g;
5860 sgot = mips_elf_got_section (abfd);
5861 BFD_ASSERT (sgot != NULL);
5862 BFD_ASSERT (elf_section_data (sgot) != NULL);
5863 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
5864 BFD_ASSERT (g != NULL);
5871 /* Return whether a relocation is against a local symbol. */
5874 mips_elf_local_relocation_p (input_bfd, relocation, local_sections,
5877 const Elf_Internal_Rela *relocation;
5878 asection **local_sections;
5879 boolean check_forced;
5881 unsigned long r_symndx;
5882 Elf_Internal_Shdr *symtab_hdr;
5883 struct mips_elf_link_hash_entry *h;
5886 r_symndx = ELF32_R_SYM (relocation->r_info);
5887 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5888 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
5890 if (r_symndx < extsymoff)
5892 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
5897 /* Look up the hash table to check whether the symbol
5898 was forced local. */
5899 h = (struct mips_elf_link_hash_entry *)
5900 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
5901 /* Find the real hash-table entry for this symbol. */
5902 while (h->root.root.type == bfd_link_hash_indirect
5903 || h->root.root.type == bfd_link_hash_warning)
5904 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
5905 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
5912 /* Sign-extend VALUE, which has the indicated number of BITS. */
5915 mips_elf_sign_extend (value, bits)
5919 if (value & ((bfd_vma) 1 << (bits - 1)))
5920 /* VALUE is negative. */
5921 value |= ((bfd_vma) - 1) << bits;
5926 /* Return non-zero if the indicated VALUE has overflowed the maximum
5927 range expressable by a signed number with the indicated number of
5931 mips_elf_overflow_p (value, bits)
5935 bfd_signed_vma svalue = (bfd_signed_vma) value;
5937 if (svalue > (1 << (bits - 1)) - 1)
5938 /* The value is too big. */
5940 else if (svalue < -(1 << (bits - 1)))
5941 /* The value is too small. */
5948 /* Calculate the %high function. */
5951 mips_elf_high (value)
5954 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
5957 /* Calculate the %higher function. */
5960 mips_elf_higher (value)
5961 bfd_vma value ATTRIBUTE_UNUSED;
5964 return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
5967 return (bfd_vma) -1;
5971 /* Calculate the %highest function. */
5974 mips_elf_highest (value)
5975 bfd_vma value ATTRIBUTE_UNUSED;
5978 return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff;
5981 return (bfd_vma) -1;
5985 /* Returns the GOT index for the global symbol indicated by H. */
5988 mips_elf_global_got_index (abfd, h)
5990 struct elf_link_hash_entry *h;
5994 struct mips_got_info *g;
5996 g = mips_elf_got_info (abfd, &sgot);
5998 /* Once we determine the global GOT entry with the lowest dynamic
5999 symbol table index, we must put all dynamic symbols with greater
6000 indices into the GOT. That makes it easy to calculate the GOT
6002 BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
6003 index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
6004 * MIPS_ELF_GOT_SIZE (abfd));
6005 BFD_ASSERT (index < sgot->_raw_size);
6010 /* Returns the offset for the entry at the INDEXth position
6014 mips_elf_got_offset_from_index (dynobj, output_bfd, index)
6022 sgot = mips_elf_got_section (dynobj);
6023 gp = _bfd_get_gp_value (output_bfd);
6024 return (sgot->output_section->vma + sgot->output_offset + index -
6028 /* If H is a symbol that needs a global GOT entry, but has a dynamic
6029 symbol table index lower than any we've seen to date, record it for
6033 mips_elf_record_global_got_symbol (h, info, g)
6034 struct elf_link_hash_entry *h;
6035 struct bfd_link_info *info;
6036 struct mips_got_info *g ATTRIBUTE_UNUSED;
6038 /* A global symbol in the GOT must also be in the dynamic symbol
6040 if (h->dynindx == -1
6041 && !bfd_elf32_link_record_dynamic_symbol (info, h))
6044 /* If we've already marked this entry as needing GOT space, we don't
6045 need to do it again. */
6046 if (h->got.offset != (bfd_vma) -1)
6049 /* By setting this to a value other than -1, we are indicating that
6050 there needs to be a GOT entry for H. Avoid using zero, as the
6051 generic ELF copy_indirect_symbol tests for <= 0. */
6057 /* This structure is passed to mips_elf_sort_hash_table_f when sorting
6058 the dynamic symbols. */
6060 struct mips_elf_hash_sort_data
6062 /* The symbol in the global GOT with the lowest dynamic symbol table
6064 struct elf_link_hash_entry *low;
6065 /* The least dynamic symbol table index corresponding to a symbol
6066 with a GOT entry. */
6067 long min_got_dynindx;
6068 /* The greatest dynamic symbol table index not corresponding to a
6069 symbol without a GOT entry. */
6070 long max_non_got_dynindx;
6073 /* If H needs a GOT entry, assign it the highest available dynamic
6074 index. Otherwise, assign it the lowest available dynamic
6078 mips_elf_sort_hash_table_f (h, data)
6079 struct mips_elf_link_hash_entry *h;
6082 struct mips_elf_hash_sort_data *hsd
6083 = (struct mips_elf_hash_sort_data *) data;
6085 /* Symbols without dynamic symbol table entries aren't interesting
6087 if (h->root.dynindx == -1)
6090 if (h->root.got.offset != 1)
6091 h->root.dynindx = hsd->max_non_got_dynindx++;
6094 h->root.dynindx = --hsd->min_got_dynindx;
6095 hsd->low = (struct elf_link_hash_entry *) h;
6101 /* Sort the dynamic symbol table so that symbols that need GOT entries
6102 appear towards the end. This reduces the amount of GOT space
6103 required. MAX_LOCAL is used to set the number of local symbols
6104 known to be in the dynamic symbol table. During
6105 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
6106 section symbols are added and the count is higher. */
6109 mips_elf_sort_hash_table (info, max_local)
6110 struct bfd_link_info *info;
6111 unsigned long max_local;
6113 struct mips_elf_hash_sort_data hsd;
6114 struct mips_got_info *g;
6117 dynobj = elf_hash_table (info)->dynobj;
6120 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
6121 hsd.max_non_got_dynindx = max_local;
6122 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
6123 elf_hash_table (info)),
6124 mips_elf_sort_hash_table_f,
6127 /* There should have been enough room in the symbol table to
6128 accomodate both the GOT and non-GOT symbols. */
6129 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
6131 /* Now we know which dynamic symbol has the lowest dynamic symbol
6132 table index in the GOT. */
6133 g = mips_elf_got_info (dynobj, NULL);
6134 g->global_gotsym = hsd.low;
6139 /* Create a local GOT entry for VALUE. Return the index of the entry,
6140 or -1 if it could not be created. */
6143 mips_elf_create_local_got_entry (abfd, g, sgot, value)
6145 struct mips_got_info *g;
6149 if (g->assigned_gotno >= g->local_gotno)
6151 /* We didn't allocate enough space in the GOT. */
6152 (*_bfd_error_handler)
6153 (_("not enough GOT space for local GOT entries"));
6154 bfd_set_error (bfd_error_bad_value);
6155 return (bfd_vma) -1;
6158 MIPS_ELF_PUT_WORD (abfd, value,
6160 + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno));
6161 return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
6164 /* Returns the GOT offset at which the indicated address can be found.
6165 If there is not yet a GOT entry for this value, create one. Returns
6166 -1 if no satisfactory GOT offset can be found. */
6169 mips_elf_local_got_index (abfd, info, value)
6171 struct bfd_link_info *info;
6175 struct mips_got_info *g;
6178 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6180 /* Look to see if we already have an appropriate entry. */
6181 for (entry = (sgot->contents
6182 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
6183 entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
6184 entry += MIPS_ELF_GOT_SIZE (abfd))
6186 bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry);
6187 if (address == value)
6188 return entry - sgot->contents;
6191 return mips_elf_create_local_got_entry (abfd, g, sgot, value);
6194 /* Find a GOT entry that is within 32KB of the VALUE. These entries
6195 are supposed to be placed at small offsets in the GOT, i.e.,
6196 within 32KB of GP. Return the index into the GOT for this page,
6197 and store the offset from this entry to the desired address in
6198 OFFSETP, if it is non-NULL. */
6201 mips_elf_got_page (abfd, info, value, offsetp)
6203 struct bfd_link_info *info;
6208 struct mips_got_info *g;
6210 bfd_byte *last_entry;
6214 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6216 /* Look to see if we aleady have an appropriate entry. */
6217 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
6218 for (entry = (sgot->contents
6219 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
6220 entry != last_entry;
6221 entry += MIPS_ELF_GOT_SIZE (abfd))
6223 address = MIPS_ELF_GET_WORD (abfd, entry);
6225 if (!mips_elf_overflow_p (value - address, 16))
6227 /* This entry will serve as the page pointer. We can add a
6228 16-bit number to it to get the actual address. */
6229 index = entry - sgot->contents;
6234 /* If we didn't have an appropriate entry, we create one now. */
6235 if (entry == last_entry)
6236 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6240 address = MIPS_ELF_GET_WORD (abfd, entry);
6241 *offsetp = value - address;
6247 /* Find a GOT entry whose higher-order 16 bits are the same as those
6248 for value. Return the index into the GOT for this entry. */
6251 mips_elf_got16_entry (abfd, info, value, external)
6253 struct bfd_link_info *info;
6258 struct mips_got_info *g;
6260 bfd_byte *last_entry;
6266 /* Although the ABI says that it is "the high-order 16 bits" that we
6267 want, it is really the %high value. The complete value is
6268 calculated with a `addiu' of a LO16 relocation, just as with a
6270 value = mips_elf_high (value) << 16;
6273 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6275 /* Look to see if we already have an appropriate entry. */
6276 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
6277 for (entry = (sgot->contents
6278 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
6279 entry != last_entry;
6280 entry += MIPS_ELF_GOT_SIZE (abfd))
6282 address = MIPS_ELF_GET_WORD (abfd, entry);
6283 if (address == value)
6285 /* This entry has the right high-order 16 bits, and the low-order
6286 16 bits are set to zero. */
6287 index = entry - sgot->contents;
6292 /* If we didn't have an appropriate entry, we create one now. */
6293 if (entry == last_entry)
6294 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6299 /* Returns the first relocation of type r_type found, beginning with
6300 RELOCATION. RELEND is one-past-the-end of the relocation table. */
6302 static const Elf_Internal_Rela *
6303 mips_elf_next_relocation (r_type, relocation, relend)
6304 unsigned int r_type;
6305 const Elf_Internal_Rela *relocation;
6306 const Elf_Internal_Rela *relend;
6308 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
6309 immediately following. However, for the IRIX6 ABI, the next
6310 relocation may be a composed relocation consisting of several
6311 relocations for the same address. In that case, the R_MIPS_LO16
6312 relocation may occur as one of these. We permit a similar
6313 extension in general, as that is useful for GCC. */
6314 while (relocation < relend)
6316 if (ELF32_R_TYPE (relocation->r_info) == r_type)
6322 /* We didn't find it. */
6323 bfd_set_error (bfd_error_bad_value);
6327 /* Create a rel.dyn relocation for the dynamic linker to resolve. REL
6328 is the original relocation, which is now being transformed into a
6329 dynamic relocation. The ADDENDP is adjusted if necessary; the
6330 caller should store the result in place of the original addend. */
6333 mips_elf_create_dynamic_relocation (output_bfd, info, rel, h, sec,
6334 symbol, addendp, input_section)
6336 struct bfd_link_info *info;
6337 const Elf_Internal_Rela *rel;
6338 struct mips_elf_link_hash_entry *h;
6342 asection *input_section;
6344 Elf_Internal_Rel outrel;
6350 r_type = ELF32_R_TYPE (rel->r_info);
6351 dynobj = elf_hash_table (info)->dynobj;
6353 = bfd_get_section_by_name (dynobj,
6354 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd));
6355 BFD_ASSERT (sreloc != NULL);
6356 BFD_ASSERT (sreloc->contents != NULL);
6357 BFD_ASSERT (sreloc->reloc_count * MIPS_ELF_REL_SIZE (output_bfd)
6358 < sreloc->_raw_size);
6362 _bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset);
6363 if (outrel.r_offset == (bfd_vma) -1)
6366 /* If we've decided to skip this relocation, just output an empty
6367 record. Note that R_MIPS_NONE == 0, so that this call to memset
6368 is a way of setting R_TYPE to R_MIPS_NONE. */
6370 memset (&outrel, 0, sizeof (outrel));
6374 bfd_vma section_offset;
6376 /* We must now calculate the dynamic symbol table index to use
6377 in the relocation. */
6379 && (! info->symbolic || (h->root.elf_link_hash_flags
6380 & ELF_LINK_HASH_DEF_REGULAR) == 0))
6382 indx = h->root.dynindx;
6383 /* h->root.dynindx may be -1 if this symbol was marked to
6390 if (sec != NULL && bfd_is_abs_section (sec))
6392 else if (sec == NULL || sec->owner == NULL)
6394 bfd_set_error (bfd_error_bad_value);
6399 indx = elf_section_data (sec->output_section)->dynindx;
6404 /* Figure out how far the target of the relocation is from
6405 the beginning of its section. */
6406 section_offset = symbol - sec->output_section->vma;
6407 /* The relocation we're building is section-relative.
6408 Therefore, the original addend must be adjusted by the
6410 *addendp += section_offset;
6411 /* Now, the relocation is just against the section. */
6412 symbol = sec->output_section->vma;
6415 /* If the relocation was previously an absolute relocation and
6416 this symbol will not be referred to by the relocation, we must
6417 adjust it by the value we give it in the dynamic symbol table.
6418 Otherwise leave the job up to the dynamic linker. */
6419 if (!indx && r_type != R_MIPS_REL32)
6422 /* The relocation is always an REL32 relocation because we don't
6423 know where the shared library will wind up at load-time. */
6424 outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32);
6426 /* Adjust the output offset of the relocation to reference the
6427 correct location in the output file. */
6428 outrel.r_offset += (input_section->output_section->vma
6429 + input_section->output_offset);
6432 /* Put the relocation back out. We have to use the special
6433 relocation outputter in the 64-bit case since the 64-bit
6434 relocation format is non-standard. */
6435 if (ABI_64_P (output_bfd))
6437 (*get_elf_backend_data (output_bfd)->s->swap_reloc_out)
6438 (output_bfd, &outrel,
6440 + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel)));
6443 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
6444 (((Elf32_External_Rel *)
6446 + sreloc->reloc_count));
6448 /* Record the index of the first relocation referencing H. This
6449 information is later emitted in the .msym section. */
6451 && (h->min_dyn_reloc_index == 0
6452 || sreloc->reloc_count < h->min_dyn_reloc_index))
6453 h->min_dyn_reloc_index = sreloc->reloc_count;
6455 /* We've now added another relocation. */
6456 ++sreloc->reloc_count;
6458 /* Make sure the output section is writable. The dynamic linker
6459 will be writing to it. */
6460 elf_section_data (input_section->output_section)->this_hdr.sh_flags
6463 /* On IRIX5, make an entry of compact relocation info. */
6464 if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5)
6466 asection *scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
6471 Elf32_crinfo cptrel;
6473 mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
6474 cptrel.vaddr = (rel->r_offset
6475 + input_section->output_section->vma
6476 + input_section->output_offset);
6477 if (r_type == R_MIPS_REL32)
6478 mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
6480 mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
6481 mips_elf_set_cr_dist2to (cptrel, 0);
6482 cptrel.konst = *addendp;
6484 cr = (scpt->contents
6485 + sizeof (Elf32_External_compact_rel));
6486 bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
6487 ((Elf32_External_crinfo *) cr
6488 + scpt->reloc_count));
6489 ++scpt->reloc_count;
6496 /* Calculate the value produced by the RELOCATION (which comes from
6497 the INPUT_BFD). The ADDEND is the addend to use for this
6498 RELOCATION; RELOCATION->R_ADDEND is ignored.
6500 The result of the relocation calculation is stored in VALUEP.
6501 REQUIRE_JALXP indicates whether or not the opcode used with this
6502 relocation must be JALX.
6504 This function returns bfd_reloc_continue if the caller need take no
6505 further action regarding this relocation, bfd_reloc_notsupported if
6506 something goes dramatically wrong, bfd_reloc_overflow if an
6507 overflow occurs, and bfd_reloc_ok to indicate success. */
6509 static bfd_reloc_status_type
6510 mips_elf_calculate_relocation (abfd,
6524 asection *input_section;
6525 struct bfd_link_info *info;
6526 const Elf_Internal_Rela *relocation;
6528 reloc_howto_type *howto;
6529 Elf_Internal_Sym *local_syms;
6530 asection **local_sections;
6533 boolean *require_jalxp;
6535 /* The eventual value we will return. */
6537 /* The address of the symbol against which the relocation is
6540 /* The final GP value to be used for the relocatable, executable, or
6541 shared object file being produced. */
6542 bfd_vma gp = (bfd_vma) - 1;
6543 /* The place (section offset or address) of the storage unit being
6546 /* The value of GP used to create the relocatable object. */
6547 bfd_vma gp0 = (bfd_vma) - 1;
6548 /* The offset into the global offset table at which the address of
6549 the relocation entry symbol, adjusted by the addend, resides
6550 during execution. */
6551 bfd_vma g = (bfd_vma) - 1;
6552 /* The section in which the symbol referenced by the relocation is
6554 asection *sec = NULL;
6555 struct mips_elf_link_hash_entry *h = NULL;
6556 /* True if the symbol referred to by this relocation is a local
6559 /* True if the symbol referred to by this relocation is "_gp_disp". */
6560 boolean gp_disp_p = false;
6561 Elf_Internal_Shdr *symtab_hdr;
6563 unsigned long r_symndx;
6565 /* True if overflow occurred during the calculation of the
6566 relocation value. */
6567 boolean overflowed_p;
6568 /* True if this relocation refers to a MIPS16 function. */
6569 boolean target_is_16_bit_code_p = false;
6571 /* Parse the relocation. */
6572 r_symndx = ELF32_R_SYM (relocation->r_info);
6573 r_type = ELF32_R_TYPE (relocation->r_info);
6574 p = (input_section->output_section->vma
6575 + input_section->output_offset
6576 + relocation->r_offset);
6578 /* Assume that there will be no overflow. */
6579 overflowed_p = false;
6581 /* Figure out whether or not the symbol is local, and get the offset
6582 used in the array of hash table entries. */
6583 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6584 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6585 local_sections, false);
6586 if (! elf_bad_symtab (input_bfd))
6587 extsymoff = symtab_hdr->sh_info;
6590 /* The symbol table does not follow the rule that local symbols
6591 must come before globals. */
6595 /* Figure out the value of the symbol. */
6598 Elf_Internal_Sym *sym;
6600 sym = local_syms + r_symndx;
6601 sec = local_sections[r_symndx];
6603 symbol = sec->output_section->vma + sec->output_offset;
6604 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
6605 symbol += sym->st_value;
6607 /* MIPS16 text labels should be treated as odd. */
6608 if (sym->st_other == STO_MIPS16)
6611 /* Record the name of this symbol, for our caller. */
6612 *namep = bfd_elf_string_from_elf_section (input_bfd,
6613 symtab_hdr->sh_link,
6616 *namep = bfd_section_name (input_bfd, sec);
6618 target_is_16_bit_code_p = (sym->st_other == STO_MIPS16);
6622 /* For global symbols we look up the symbol in the hash-table. */
6623 h = ((struct mips_elf_link_hash_entry *)
6624 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
6625 /* Find the real hash-table entry for this symbol. */
6626 while (h->root.root.type == bfd_link_hash_indirect
6627 || h->root.root.type == bfd_link_hash_warning)
6628 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
6630 /* Record the name of this symbol, for our caller. */
6631 *namep = h->root.root.root.string;
6633 /* See if this is the special _gp_disp symbol. Note that such a
6634 symbol must always be a global symbol. */
6635 if (strcmp (h->root.root.root.string, "_gp_disp") == 0)
6637 /* Relocations against _gp_disp are permitted only with
6638 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6639 if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16)
6640 return bfd_reloc_notsupported;
6644 /* If this symbol is defined, calculate its address. Note that
6645 _gp_disp is a magic symbol, always implicitly defined by the
6646 linker, so it's inappropriate to check to see whether or not
6648 else if ((h->root.root.type == bfd_link_hash_defined
6649 || h->root.root.type == bfd_link_hash_defweak)
6650 && h->root.root.u.def.section)
6652 sec = h->root.root.u.def.section;
6653 if (sec->output_section)
6654 symbol = (h->root.root.u.def.value
6655 + sec->output_section->vma
6656 + sec->output_offset);
6658 symbol = h->root.root.u.def.value;
6660 else if (h->root.root.type == bfd_link_hash_undefweak)
6661 /* We allow relocations against undefined weak symbols, giving
6662 it the value zero, so that you can undefined weak functions
6663 and check to see if they exist by looking at their
6666 else if (info->shared
6667 && (!info->symbolic || info->allow_shlib_undefined)
6668 && !info->no_undefined
6669 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
6671 else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0 ||
6672 strcmp (h->root.root.root.string, "_DYNAMIC_LINKING") == 0)
6674 /* If this is a dynamic link, we should have created a
6675 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
6676 in in mips_elf_create_dynamic_sections.
6677 Otherwise, we should define the symbol with a value of 0.
6678 FIXME: It should probably get into the symbol table
6680 BFD_ASSERT (! info->shared);
6681 BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
6686 if (! ((*info->callbacks->undefined_symbol)
6687 (info, h->root.root.root.string, input_bfd,
6688 input_section, relocation->r_offset,
6689 (!info->shared || info->no_undefined
6690 || ELF_ST_VISIBILITY (h->root.other)))))
6691 return bfd_reloc_undefined;
6695 target_is_16_bit_code_p = (h->root.other == STO_MIPS16);
6698 /* If this is a 32-bit call to a 16-bit function with a stub, we
6699 need to redirect the call to the stub, unless we're already *in*
6701 if (r_type != R_MIPS16_26 && !info->relocateable
6702 && ((h != NULL && h->fn_stub != NULL)
6703 || (local_p && elf_tdata (input_bfd)->local_stubs != NULL
6704 && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
6705 && !mips_elf_stub_section_p (input_bfd, input_section))
6707 /* This is a 32-bit call to a 16-bit function. We should
6708 have already noticed that we were going to need the
6711 sec = elf_tdata (input_bfd)->local_stubs[r_symndx];
6714 BFD_ASSERT (h->need_fn_stub);
6718 symbol = sec->output_section->vma + sec->output_offset;
6720 /* If this is a 16-bit call to a 32-bit function with a stub, we
6721 need to redirect the call to the stub. */
6722 else if (r_type == R_MIPS16_26 && !info->relocateable
6724 && (h->call_stub != NULL || h->call_fp_stub != NULL)
6725 && !target_is_16_bit_code_p)
6727 /* If both call_stub and call_fp_stub are defined, we can figure
6728 out which one to use by seeing which one appears in the input
6730 if (h->call_stub != NULL && h->call_fp_stub != NULL)
6735 for (o = input_bfd->sections; o != NULL; o = o->next)
6737 if (strncmp (bfd_get_section_name (input_bfd, o),
6738 CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
6740 sec = h->call_fp_stub;
6747 else if (h->call_stub != NULL)
6750 sec = h->call_fp_stub;
6752 BFD_ASSERT (sec->_raw_size > 0);
6753 symbol = sec->output_section->vma + sec->output_offset;
6756 /* Calls from 16-bit code to 32-bit code and vice versa require the
6757 special jalx instruction. */
6758 *require_jalxp = (!info->relocateable
6759 && ((r_type == R_MIPS16_26) != target_is_16_bit_code_p));
6761 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6762 local_sections, true);
6764 /* If we haven't already determined the GOT offset, or the GP value,
6765 and we're going to need it, get it now. */
6770 case R_MIPS_GOT_DISP:
6771 case R_MIPS_GOT_HI16:
6772 case R_MIPS_CALL_HI16:
6773 case R_MIPS_GOT_LO16:
6774 case R_MIPS_CALL_LO16:
6775 /* Find the index into the GOT where this value is located. */
6778 BFD_ASSERT (addend == 0);
6779 g = mips_elf_global_got_index
6780 (elf_hash_table (info)->dynobj,
6781 (struct elf_link_hash_entry *) h);
6782 if (! elf_hash_table(info)->dynamic_sections_created
6784 && (info->symbolic || h->root.dynindx == -1)
6785 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
6787 /* This is a static link or a -Bsymbolic link. The
6788 symbol is defined locally, or was forced to be local.
6789 We must initialize this entry in the GOT. */
6790 asection *sgot = mips_elf_got_section(elf_hash_table
6792 MIPS_ELF_PUT_WORD (elf_hash_table (info)->dynobj,
6793 symbol + addend, sgot->contents + g);
6796 else if (r_type == R_MIPS_GOT16 || r_type == R_MIPS_CALL16)
6797 /* There's no need to create a local GOT entry here; the
6798 calculation for a local GOT16 entry does not involve G. */
6802 g = mips_elf_local_got_index (abfd, info, symbol + addend);
6803 if (g == (bfd_vma) -1)
6807 /* Convert GOT indices to actual offsets. */
6808 g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6814 case R_MIPS_GPREL16:
6815 case R_MIPS_GPREL32:
6816 case R_MIPS_LITERAL:
6817 gp0 = _bfd_get_gp_value (input_bfd);
6818 gp = _bfd_get_gp_value (abfd);
6825 /* Figure out what kind of relocation is being performed. */
6829 return bfd_reloc_continue;
6832 value = symbol + mips_elf_sign_extend (addend, 16);
6833 overflowed_p = mips_elf_overflow_p (value, 16);
6840 || (elf_hash_table (info)->dynamic_sections_created
6842 && ((h->root.elf_link_hash_flags
6843 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)
6844 && ((h->root.elf_link_hash_flags
6845 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
6847 && (input_section->flags & SEC_ALLOC) != 0)
6849 /* If we're creating a shared library, or this relocation is
6850 against a symbol in a shared library, then we can't know
6851 where the symbol will end up. So, we create a relocation
6852 record in the output, and leave the job up to the dynamic
6855 if (!mips_elf_create_dynamic_relocation (abfd,
6867 if (r_type != R_MIPS_REL32)
6868 value = symbol + addend;
6872 value &= howto->dst_mask;
6877 case R_MIPS_GNU_REL_LO16:
6878 value = symbol + addend - p;
6879 value &= howto->dst_mask;
6882 case R_MIPS_GNU_REL16_S2:
6883 value = symbol + mips_elf_sign_extend (addend << 2, 18) - p;
6884 overflowed_p = mips_elf_overflow_p (value, 18);
6885 value = (value >> 2) & howto->dst_mask;
6888 case R_MIPS_GNU_REL_HI16:
6889 value = mips_elf_high (addend + symbol - p);
6890 value &= howto->dst_mask;
6894 /* The calculation for R_MIPS16_26 is just the same as for an
6895 R_MIPS_26. It's only the storage of the relocated field into
6896 the output file that's different. That's handled in
6897 mips_elf_perform_relocation. So, we just fall through to the
6898 R_MIPS_26 case here. */
6901 value = (((addend << 2) | ((p + 4) & 0xf0000000)) + symbol) >> 2;
6903 value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2;
6904 value &= howto->dst_mask;
6910 value = mips_elf_high (addend + symbol);
6911 value &= howto->dst_mask;
6915 value = mips_elf_high (addend + gp - p);
6916 overflowed_p = mips_elf_overflow_p (value, 16);
6922 value = (symbol + addend) & howto->dst_mask;
6925 value = addend + gp - p + 4;
6926 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6927 for overflow. But, on, say, Irix 5, relocations against
6928 _gp_disp are normally generated from the .cpload
6929 pseudo-op. It generates code that normally looks like
6932 lui $gp,%hi(_gp_disp)
6933 addiu $gp,$gp,%lo(_gp_disp)
6936 Here $t9 holds the address of the function being called,
6937 as required by the MIPS ELF ABI. The R_MIPS_LO16
6938 relocation can easily overflow in this situation, but the
6939 R_MIPS_HI16 relocation will handle the overflow.
6940 Therefore, we consider this a bug in the MIPS ABI, and do
6941 not check for overflow here. */
6945 case R_MIPS_LITERAL:
6946 /* Because we don't merge literal sections, we can handle this
6947 just like R_MIPS_GPREL16. In the long run, we should merge
6948 shared literals, and then we will need to additional work
6953 case R_MIPS16_GPREL:
6954 /* The R_MIPS16_GPREL performs the same calculation as
6955 R_MIPS_GPREL16, but stores the relocated bits in a different
6956 order. We don't need to do anything special here; the
6957 differences are handled in mips_elf_perform_relocation. */
6958 case R_MIPS_GPREL16:
6960 value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp;
6962 value = mips_elf_sign_extend (addend, 16) + symbol - gp;
6963 overflowed_p = mips_elf_overflow_p (value, 16);
6972 /* The special case is when the symbol is forced to be local. We
6973 need the full address in the GOT since no R_MIPS_LO16 relocation
6975 forced = ! mips_elf_local_relocation_p (input_bfd, relocation,
6976 local_sections, false);
6977 value = mips_elf_got16_entry (abfd, info, symbol + addend, forced);
6978 if (value == (bfd_vma) -1)
6981 = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6984 overflowed_p = mips_elf_overflow_p (value, 16);
6990 case R_MIPS_GOT_DISP:
6992 overflowed_p = mips_elf_overflow_p (value, 16);
6995 case R_MIPS_GPREL32:
6996 value = (addend + symbol + gp0 - gp) & howto->dst_mask;
7000 value = mips_elf_sign_extend (addend, 16) + symbol - p;
7001 overflowed_p = mips_elf_overflow_p (value, 16);
7002 value = (bfd_vma) ((bfd_signed_vma) value / 4);
7005 case R_MIPS_GOT_HI16:
7006 case R_MIPS_CALL_HI16:
7007 /* We're allowed to handle these two relocations identically.
7008 The dynamic linker is allowed to handle the CALL relocations
7009 differently by creating a lazy evaluation stub. */
7011 value = mips_elf_high (value);
7012 value &= howto->dst_mask;
7015 case R_MIPS_GOT_LO16:
7016 case R_MIPS_CALL_LO16:
7017 value = g & howto->dst_mask;
7020 case R_MIPS_GOT_PAGE:
7021 value = mips_elf_got_page (abfd, info, symbol + addend, NULL);
7022 if (value == (bfd_vma) -1)
7024 value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
7027 overflowed_p = mips_elf_overflow_p (value, 16);
7030 case R_MIPS_GOT_OFST:
7031 mips_elf_got_page (abfd, info, symbol + addend, &value);
7032 overflowed_p = mips_elf_overflow_p (value, 16);
7036 value = symbol - addend;
7037 value &= howto->dst_mask;
7041 value = mips_elf_higher (addend + symbol);
7042 value &= howto->dst_mask;
7045 case R_MIPS_HIGHEST:
7046 value = mips_elf_highest (addend + symbol);
7047 value &= howto->dst_mask;
7050 case R_MIPS_SCN_DISP:
7051 value = symbol + addend - sec->output_offset;
7052 value &= howto->dst_mask;
7057 /* Both of these may be ignored. R_MIPS_JALR is an optimization
7058 hint; we could improve performance by honoring that hint. */
7059 return bfd_reloc_continue;
7061 case R_MIPS_GNU_VTINHERIT:
7062 case R_MIPS_GNU_VTENTRY:
7063 /* We don't do anything with these at present. */
7064 return bfd_reloc_continue;
7067 /* An unrecognized relocation type. */
7068 return bfd_reloc_notsupported;
7071 /* Store the VALUE for our caller. */
7073 return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
7076 /* Obtain the field relocated by RELOCATION. */
7079 mips_elf_obtain_contents (howto, relocation, input_bfd, contents)
7080 reloc_howto_type *howto;
7081 const Elf_Internal_Rela *relocation;
7086 bfd_byte *location = contents + relocation->r_offset;
7088 /* Obtain the bytes. */
7089 x = bfd_get (((bfd_vma)(8 * bfd_get_reloc_size (howto))), input_bfd, location);
7091 if ((ELF32_R_TYPE (relocation->r_info) == R_MIPS16_26
7092 || ELF32_R_TYPE (relocation->r_info) == R_MIPS16_GPREL)
7093 && bfd_little_endian (input_bfd))
7094 /* The two 16-bit words will be reversed on a little-endian
7095 system. See mips_elf_perform_relocation for more details. */
7096 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
7101 /* It has been determined that the result of the RELOCATION is the
7102 VALUE. Use HOWTO to place VALUE into the output file at the
7103 appropriate position. The SECTION is the section to which the
7104 relocation applies. If REQUIRE_JALX is true, then the opcode used
7105 for the relocation must be either JAL or JALX, and it is
7106 unconditionally converted to JALX.
7108 Returns false if anything goes wrong. */
7111 mips_elf_perform_relocation (info, howto, relocation, value,
7112 input_bfd, input_section,
7113 contents, require_jalx)
7114 struct bfd_link_info *info;
7115 reloc_howto_type *howto;
7116 const Elf_Internal_Rela *relocation;
7119 asection *input_section;
7121 boolean require_jalx;
7125 int r_type = ELF32_R_TYPE (relocation->r_info);
7127 /* Figure out where the relocation is occurring. */
7128 location = contents + relocation->r_offset;
7130 /* Obtain the current value. */
7131 x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents);
7133 /* Clear the field we are setting. */
7134 x &= ~howto->dst_mask;
7136 /* If this is the R_MIPS16_26 relocation, we must store the
7137 value in a funny way. */
7138 if (r_type == R_MIPS16_26)
7140 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
7141 Most mips16 instructions are 16 bits, but these instructions
7144 The format of these instructions is:
7146 +--------------+--------------------------------+
7147 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
7148 +--------------+--------------------------------+
7150 +-----------------------------------------------+
7152 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
7153 Note that the immediate value in the first word is swapped.
7155 When producing a relocateable object file, R_MIPS16_26 is
7156 handled mostly like R_MIPS_26. In particular, the addend is
7157 stored as a straight 26-bit value in a 32-bit instruction.
7158 (gas makes life simpler for itself by never adjusting a
7159 R_MIPS16_26 reloc to be against a section, so the addend is
7160 always zero). However, the 32 bit instruction is stored as 2
7161 16-bit values, rather than a single 32-bit value. In a
7162 big-endian file, the result is the same; in a little-endian
7163 file, the two 16-bit halves of the 32 bit value are swapped.
7164 This is so that a disassembler can recognize the jal
7167 When doing a final link, R_MIPS16_26 is treated as a 32 bit
7168 instruction stored as two 16-bit values. The addend A is the
7169 contents of the targ26 field. The calculation is the same as
7170 R_MIPS_26. When storing the calculated value, reorder the
7171 immediate value as shown above, and don't forget to store the
7172 value as two 16-bit values.
7174 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
7178 +--------+----------------------+
7182 +--------+----------------------+
7185 +----------+------+-------------+
7189 +----------+--------------------+
7190 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
7191 ((sub1 << 16) | sub2)).
7193 When producing a relocateable object file, the calculation is
7194 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
7195 When producing a fully linked file, the calculation is
7196 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
7197 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
7199 if (!info->relocateable)
7200 /* Shuffle the bits according to the formula above. */
7201 value = (((value & 0x1f0000) << 5)
7202 | ((value & 0x3e00000) >> 5)
7203 | (value & 0xffff));
7205 else if (r_type == R_MIPS16_GPREL)
7207 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
7208 mode. A typical instruction will have a format like this:
7210 +--------------+--------------------------------+
7211 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
7212 +--------------+--------------------------------+
7213 ! Major ! rx ! ry ! Imm 4:0 !
7214 +--------------+--------------------------------+
7216 EXTEND is the five bit value 11110. Major is the instruction
7219 This is handled exactly like R_MIPS_GPREL16, except that the
7220 addend is retrieved and stored as shown in this diagram; that
7221 is, the Imm fields above replace the V-rel16 field.
7223 All we need to do here is shuffle the bits appropriately. As
7224 above, the two 16-bit halves must be swapped on a
7225 little-endian system. */
7226 value = (((value & 0x7e0) << 16)
7227 | ((value & 0xf800) << 5)
7231 /* Set the field. */
7232 x |= (value & howto->dst_mask);
7234 /* If required, turn JAL into JALX. */
7238 bfd_vma opcode = x >> 26;
7239 bfd_vma jalx_opcode;
7241 /* Check to see if the opcode is already JAL or JALX. */
7242 if (r_type == R_MIPS16_26)
7244 ok = ((opcode == 0x6) || (opcode == 0x7));
7249 ok = ((opcode == 0x3) || (opcode == 0x1d));
7253 /* If the opcode is not JAL or JALX, there's a problem. */
7256 (*_bfd_error_handler)
7257 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
7258 bfd_archive_filename (input_bfd),
7259 input_section->name,
7260 (unsigned long) relocation->r_offset);
7261 bfd_set_error (bfd_error_bad_value);
7265 /* Make this the JALX opcode. */
7266 x = (x & ~(0x3f << 26)) | (jalx_opcode << 26);
7269 /* Swap the high- and low-order 16 bits on little-endian systems
7270 when doing a MIPS16 relocation. */
7271 if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26)
7272 && bfd_little_endian (input_bfd))
7273 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
7275 /* Put the value into the output. */
7276 bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
7280 /* Returns true if SECTION is a MIPS16 stub section. */
7283 mips_elf_stub_section_p (abfd, section)
7284 bfd *abfd ATTRIBUTE_UNUSED;
7287 const char *name = bfd_get_section_name (abfd, section);
7289 return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0
7290 || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
7291 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0);
7294 /* Relocate a MIPS ELF section. */
7297 _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
7298 contents, relocs, local_syms, local_sections)
7300 struct bfd_link_info *info;
7302 asection *input_section;
7304 Elf_Internal_Rela *relocs;
7305 Elf_Internal_Sym *local_syms;
7306 asection **local_sections;
7308 Elf_Internal_Rela *rel;
7309 const Elf_Internal_Rela *relend;
7311 boolean use_saved_addend_p = false;
7312 struct elf_backend_data *bed;
7314 bed = get_elf_backend_data (output_bfd);
7315 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
7316 for (rel = relocs; rel < relend; ++rel)
7320 reloc_howto_type *howto;
7321 boolean require_jalx;
7322 /* True if the relocation is a RELA relocation, rather than a
7324 boolean rela_relocation_p = true;
7325 unsigned int r_type = ELF32_R_TYPE (rel->r_info);
7326 const char * msg = (const char *) NULL;
7328 /* Find the relocation howto for this relocation. */
7329 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7331 /* Some 32-bit code uses R_MIPS_64. In particular, people use
7332 64-bit code, but make sure all their addresses are in the
7333 lowermost or uppermost 32-bit section of the 64-bit address
7334 space. Thus, when they use an R_MIPS_64 they mean what is
7335 usually meant by R_MIPS_32, with the exception that the
7336 stored value is sign-extended to 64 bits. */
7337 howto = elf_mips_howto_table_rel + R_MIPS_32;
7339 /* On big-endian systems, we need to lie about the position
7341 if (bfd_big_endian (input_bfd))
7345 howto = mips_rtype_to_howto (r_type);
7347 if (!use_saved_addend_p)
7349 Elf_Internal_Shdr *rel_hdr;
7351 /* If these relocations were originally of the REL variety,
7352 we must pull the addend out of the field that will be
7353 relocated. Otherwise, we simply use the contents of the
7354 RELA relocation. To determine which flavor or relocation
7355 this is, we depend on the fact that the INPUT_SECTION's
7356 REL_HDR is read before its REL_HDR2. */
7357 rel_hdr = &elf_section_data (input_section)->rel_hdr;
7358 if ((size_t) (rel - relocs)
7359 >= (NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel))
7360 rel_hdr = elf_section_data (input_section)->rel_hdr2;
7361 if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd))
7363 /* Note that this is a REL relocation. */
7364 rela_relocation_p = false;
7366 /* Get the addend, which is stored in the input file. */
7367 addend = mips_elf_obtain_contents (howto,
7371 addend &= howto->src_mask;
7373 /* For some kinds of relocations, the ADDEND is a
7374 combination of the addend stored in two different
7376 if (r_type == R_MIPS_HI16
7377 || r_type == R_MIPS_GNU_REL_HI16
7378 || (r_type == R_MIPS_GOT16
7379 && mips_elf_local_relocation_p (input_bfd, rel,
7380 local_sections, false)))
7383 const Elf_Internal_Rela *lo16_relocation;
7384 reloc_howto_type *lo16_howto;
7387 /* The combined value is the sum of the HI16 addend,
7388 left-shifted by sixteen bits, and the LO16
7389 addend, sign extended. (Usually, the code does
7390 a `lui' of the HI16 value, and then an `addiu' of
7393 Scan ahead to find a matching LO16 relocation. */
7394 if (r_type == R_MIPS_GNU_REL_HI16)
7395 lo = R_MIPS_GNU_REL_LO16;
7399 = mips_elf_next_relocation (lo, rel, relend);
7400 if (lo16_relocation == NULL)
7403 /* Obtain the addend kept there. */
7404 lo16_howto = mips_rtype_to_howto (lo);
7405 l = mips_elf_obtain_contents (lo16_howto,
7407 input_bfd, contents);
7408 l &= lo16_howto->src_mask;
7409 l = mips_elf_sign_extend (l, 16);
7413 /* Compute the combined addend. */
7416 else if (r_type == R_MIPS16_GPREL)
7418 /* The addend is scrambled in the object file. See
7419 mips_elf_perform_relocation for details on the
7421 addend = (((addend & 0x1f0000) >> 5)
7422 | ((addend & 0x7e00000) >> 16)
7427 addend = rel->r_addend;
7430 if (info->relocateable)
7432 Elf_Internal_Sym *sym;
7433 unsigned long r_symndx;
7435 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)
7436 && bfd_big_endian (input_bfd))
7439 /* Since we're just relocating, all we need to do is copy
7440 the relocations back out to the object file, unless
7441 they're against a section symbol, in which case we need
7442 to adjust by the section offset, or unless they're GP
7443 relative in which case we need to adjust by the amount
7444 that we're adjusting GP in this relocateable object. */
7446 if (!mips_elf_local_relocation_p (input_bfd, rel, local_sections,
7448 /* There's nothing to do for non-local relocations. */
7451 if (r_type == R_MIPS16_GPREL
7452 || r_type == R_MIPS_GPREL16
7453 || r_type == R_MIPS_GPREL32
7454 || r_type == R_MIPS_LITERAL)
7455 addend -= (_bfd_get_gp_value (output_bfd)
7456 - _bfd_get_gp_value (input_bfd));
7457 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7458 || r_type == R_MIPS_GNU_REL16_S2)
7459 /* The addend is stored without its two least
7460 significant bits (which are always zero.) In a
7461 non-relocateable link, calculate_relocation will do
7462 this shift; here, we must do it ourselves. */
7465 r_symndx = ELF32_R_SYM (rel->r_info);
7466 sym = local_syms + r_symndx;
7467 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
7468 /* Adjust the addend appropriately. */
7469 addend += local_sections[r_symndx]->output_offset;
7471 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
7472 then we only want to write out the high-order 16 bits.
7473 The subsequent R_MIPS_LO16 will handle the low-order bits. */
7474 if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16
7475 || r_type == R_MIPS_GNU_REL_HI16)
7476 addend = mips_elf_high (addend);
7477 /* If the relocation is for an R_MIPS_26 relocation, then
7478 the two low-order bits are not stored in the object file;
7479 they are implicitly zero. */
7480 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7481 || r_type == R_MIPS_GNU_REL16_S2)
7484 if (rela_relocation_p)
7485 /* If this is a RELA relocation, just update the addend.
7486 We have to cast away constness for REL. */
7487 rel->r_addend = addend;
7490 /* Otherwise, we have to write the value back out. Note
7491 that we use the source mask, rather than the
7492 destination mask because the place to which we are
7493 writing will be source of the addend in the final
7495 addend &= howto->src_mask;
7497 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7498 /* See the comment above about using R_MIPS_64 in the 32-bit
7499 ABI. Here, we need to update the addend. It would be
7500 possible to get away with just using the R_MIPS_32 reloc
7501 but for endianness. */
7507 if (addend & ((bfd_vma) 1 << 31))
7509 sign_bits = ((bfd_vma) 1 << 32) - 1;
7516 /* If we don't know that we have a 64-bit type,
7517 do two separate stores. */
7518 if (bfd_big_endian (input_bfd))
7520 /* Store the sign-bits (which are most significant)
7522 low_bits = sign_bits;
7528 high_bits = sign_bits;
7530 bfd_put_32 (input_bfd, low_bits,
7531 contents + rel->r_offset);
7532 bfd_put_32 (input_bfd, high_bits,
7533 contents + rel->r_offset + 4);
7537 if (!mips_elf_perform_relocation (info, howto, rel, addend,
7538 input_bfd, input_section,
7543 /* Go on to the next relocation. */
7547 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7548 relocations for the same offset. In that case we are
7549 supposed to treat the output of each relocation as the addend
7551 if (rel + 1 < relend
7552 && rel->r_offset == rel[1].r_offset
7553 && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
7554 use_saved_addend_p = true;
7556 use_saved_addend_p = false;
7558 /* Figure out what value we are supposed to relocate. */
7559 switch (mips_elf_calculate_relocation (output_bfd,
7572 case bfd_reloc_continue:
7573 /* There's nothing to do. */
7576 case bfd_reloc_undefined:
7577 /* mips_elf_calculate_relocation already called the
7578 undefined_symbol callback. There's no real point in
7579 trying to perform the relocation at this point, so we
7580 just skip ahead to the next relocation. */
7583 case bfd_reloc_notsupported:
7584 msg = _("internal error: unsupported relocation error");
7585 info->callbacks->warning
7586 (info, msg, name, input_bfd, input_section, rel->r_offset);
7589 case bfd_reloc_overflow:
7590 if (use_saved_addend_p)
7591 /* Ignore overflow until we reach the last relocation for
7592 a given location. */
7596 BFD_ASSERT (name != NULL);
7597 if (! ((*info->callbacks->reloc_overflow)
7598 (info, name, howto->name, (bfd_vma) 0,
7599 input_bfd, input_section, rel->r_offset)))
7612 /* If we've got another relocation for the address, keep going
7613 until we reach the last one. */
7614 if (use_saved_addend_p)
7620 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7621 /* See the comment above about using R_MIPS_64 in the 32-bit
7622 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7623 that calculated the right value. Now, however, we
7624 sign-extend the 32-bit result to 64-bits, and store it as a
7625 64-bit value. We are especially generous here in that we
7626 go to extreme lengths to support this usage on systems with
7627 only a 32-bit VMA. */
7633 if (value & ((bfd_vma) 1 << 31))
7635 sign_bits = ((bfd_vma) 1 << 32) - 1;
7642 /* If we don't know that we have a 64-bit type,
7643 do two separate stores. */
7644 if (bfd_big_endian (input_bfd))
7646 /* Undo what we did above. */
7648 /* Store the sign-bits (which are most significant)
7650 low_bits = sign_bits;
7656 high_bits = sign_bits;
7658 bfd_put_32 (input_bfd, low_bits,
7659 contents + rel->r_offset);
7660 bfd_put_32 (input_bfd, high_bits,
7661 contents + rel->r_offset + 4);
7665 /* Actually perform the relocation. */
7666 if (!mips_elf_perform_relocation (info, howto, rel, value, input_bfd,
7667 input_section, contents,
7675 /* This hook function is called before the linker writes out a global
7676 symbol. We mark symbols as small common if appropriate. This is
7677 also where we undo the increment of the value for a mips16 symbol. */
7680 _bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
7681 bfd *abfd ATTRIBUTE_UNUSED;
7682 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7683 const char *name ATTRIBUTE_UNUSED;
7684 Elf_Internal_Sym *sym;
7685 asection *input_sec;
7687 /* If we see a common symbol, which implies a relocatable link, then
7688 if a symbol was small common in an input file, mark it as small
7689 common in the output file. */
7690 if (sym->st_shndx == SHN_COMMON
7691 && strcmp (input_sec->name, ".scommon") == 0)
7692 sym->st_shndx = SHN_MIPS_SCOMMON;
7694 if (sym->st_other == STO_MIPS16
7695 && (sym->st_value & 1) != 0)
7701 /* Functions for the dynamic linker. */
7703 /* The name of the dynamic interpreter. This is put in the .interp
7706 #define ELF_DYNAMIC_INTERPRETER(abfd) \
7707 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7708 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7709 : "/usr/lib/libc.so.1")
7711 /* Create dynamic sections when linking against a dynamic object. */
7714 _bfd_mips_elf_create_dynamic_sections (abfd, info)
7716 struct bfd_link_info *info;
7718 struct elf_link_hash_entry *h;
7720 register asection *s;
7721 const char * const *namep;
7723 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7724 | SEC_LINKER_CREATED | SEC_READONLY);
7726 /* Mips ABI requests the .dynamic section to be read only. */
7727 s = bfd_get_section_by_name (abfd, ".dynamic");
7730 if (! bfd_set_section_flags (abfd, s, flags))
7734 /* We need to create .got section. */
7735 if (! mips_elf_create_got_section (abfd, info))
7738 /* Create the .msym section on IRIX6. It is used by the dynamic
7739 linker to speed up dynamic relocations, and to avoid computing
7740 the ELF hash for symbols. */
7741 if (IRIX_COMPAT (abfd) == ict_irix6
7742 && !mips_elf_create_msym_section (abfd))
7745 /* Create .stub section. */
7746 if (bfd_get_section_by_name (abfd,
7747 MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL)
7749 s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd));
7751 || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
7752 || ! bfd_set_section_alignment (abfd, s,
7753 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7757 if ((IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
7759 && bfd_get_section_by_name (abfd, ".rld_map") == NULL)
7761 s = bfd_make_section (abfd, ".rld_map");
7763 || ! bfd_set_section_flags (abfd, s, flags &~ (flagword) SEC_READONLY)
7764 || ! bfd_set_section_alignment (abfd, s,
7765 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7769 /* On IRIX5, we adjust add some additional symbols and change the
7770 alignments of several sections. There is no ABI documentation
7771 indicating that this is necessary on IRIX6, nor any evidence that
7772 the linker takes such action. */
7773 if (IRIX_COMPAT (abfd) == ict_irix5)
7775 for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++)
7778 if (! (_bfd_generic_link_add_one_symbol
7779 (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr,
7780 (bfd_vma) 0, (const char *) NULL, false,
7781 get_elf_backend_data (abfd)->collect,
7782 (struct bfd_link_hash_entry **) &h)))
7784 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7785 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7786 h->type = STT_SECTION;
7788 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7792 /* We need to create a .compact_rel section. */
7793 if (SGI_COMPAT (abfd))
7795 if (!mips_elf_create_compact_rel_section (abfd, info))
7799 /* Change aligments of some sections. */
7800 s = bfd_get_section_by_name (abfd, ".hash");
7802 bfd_set_section_alignment (abfd, s, 4);
7803 s = bfd_get_section_by_name (abfd, ".dynsym");
7805 bfd_set_section_alignment (abfd, s, 4);
7806 s = bfd_get_section_by_name (abfd, ".dynstr");
7808 bfd_set_section_alignment (abfd, s, 4);
7809 s = bfd_get_section_by_name (abfd, ".reginfo");
7811 bfd_set_section_alignment (abfd, s, 4);
7812 s = bfd_get_section_by_name (abfd, ".dynamic");
7814 bfd_set_section_alignment (abfd, s, 4);
7820 if (SGI_COMPAT (abfd))
7822 if (!(_bfd_generic_link_add_one_symbol
7823 (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr,
7824 (bfd_vma) 0, (const char *) NULL, false,
7825 get_elf_backend_data (abfd)->collect,
7826 (struct bfd_link_hash_entry **) &h)))
7831 /* For normal mips it is _DYNAMIC_LINKING. */
7832 if (!(_bfd_generic_link_add_one_symbol
7833 (info, abfd, "_DYNAMIC_LINKING", BSF_GLOBAL,
7834 bfd_abs_section_ptr, (bfd_vma) 0, (const char *) NULL, false,
7835 get_elf_backend_data (abfd)->collect,
7836 (struct bfd_link_hash_entry **) &h)))
7839 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7840 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7841 h->type = STT_SECTION;
7843 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7846 if (! mips_elf_hash_table (info)->use_rld_obj_head)
7848 /* __rld_map is a four byte word located in the .data section
7849 and is filled in by the rtld to contain a pointer to
7850 the _r_debug structure. Its symbol value will be set in
7851 mips_elf_finish_dynamic_symbol. */
7852 s = bfd_get_section_by_name (abfd, ".rld_map");
7853 BFD_ASSERT (s != NULL);
7856 if (SGI_COMPAT (abfd))
7858 if (!(_bfd_generic_link_add_one_symbol
7859 (info, abfd, "__rld_map", BSF_GLOBAL, s,
7860 (bfd_vma) 0, (const char *) NULL, false,
7861 get_elf_backend_data (abfd)->collect,
7862 (struct bfd_link_hash_entry **) &h)))
7867 /* For normal mips the symbol is __RLD_MAP. */
7868 if (!(_bfd_generic_link_add_one_symbol
7869 (info, abfd, "__RLD_MAP", BSF_GLOBAL, s,
7870 (bfd_vma) 0, (const char *) NULL, false,
7871 get_elf_backend_data (abfd)->collect,
7872 (struct bfd_link_hash_entry **) &h)))
7875 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7876 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7877 h->type = STT_OBJECT;
7879 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7887 /* Create the .compact_rel section. */
7890 mips_elf_create_compact_rel_section (abfd, info)
7892 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7895 register asection *s;
7897 if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL)
7899 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED
7902 s = bfd_make_section (abfd, ".compact_rel");
7904 || ! bfd_set_section_flags (abfd, s, flags)
7905 || ! bfd_set_section_alignment (abfd, s,
7906 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
7909 s->_raw_size = sizeof (Elf32_External_compact_rel);
7915 /* Create the .got section to hold the global offset table. */
7918 mips_elf_create_got_section (abfd, info)
7920 struct bfd_link_info *info;
7923 register asection *s;
7924 struct elf_link_hash_entry *h;
7925 struct mips_got_info *g;
7928 /* This function may be called more than once. */
7929 if (mips_elf_got_section (abfd))
7932 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7933 | SEC_LINKER_CREATED);
7935 s = bfd_make_section (abfd, ".got");
7937 || ! bfd_set_section_flags (abfd, s, flags)
7938 || ! bfd_set_section_alignment (abfd, s, 4))
7941 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7942 linker script because we don't want to define the symbol if we
7943 are not creating a global offset table. */
7945 if (! (_bfd_generic_link_add_one_symbol
7946 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
7947 (bfd_vma) 0, (const char *) NULL, false,
7948 get_elf_backend_data (abfd)->collect,
7949 (struct bfd_link_hash_entry **) &h)))
7951 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
7952 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7953 h->type = STT_OBJECT;
7956 && ! bfd_elf32_link_record_dynamic_symbol (info, h))
7959 /* The first several global offset table entries are reserved. */
7960 s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd);
7962 amt = sizeof (struct mips_got_info);
7963 g = (struct mips_got_info *) bfd_alloc (abfd, amt);
7966 g->global_gotsym = NULL;
7967 g->local_gotno = MIPS_RESERVED_GOTNO;
7968 g->assigned_gotno = MIPS_RESERVED_GOTNO;
7969 if (elf_section_data (s) == NULL)
7971 amt = sizeof (struct bfd_elf_section_data);
7972 s->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
7973 if (elf_section_data (s) == NULL)
7976 elf_section_data (s)->tdata = (PTR) g;
7977 elf_section_data (s)->this_hdr.sh_flags
7978 |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
7983 /* Returns the .msym section for ABFD, creating it if it does not
7984 already exist. Returns NULL to indicate error. */
7987 mips_elf_create_msym_section (abfd)
7992 s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
7995 s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
7997 || !bfd_set_section_flags (abfd, s,
8001 | SEC_LINKER_CREATED
8003 || !bfd_set_section_alignment (abfd, s,
8004 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
8011 /* Add room for N relocations to the .rel.dyn section in ABFD. */
8014 mips_elf_allocate_dynamic_relocations (abfd, n)
8020 s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd));
8021 BFD_ASSERT (s != NULL);
8023 if (s->_raw_size == 0)
8025 /* Make room for a null element. */
8026 s->_raw_size += MIPS_ELF_REL_SIZE (abfd);
8029 s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd);
8032 /* Look through the relocs for a section during the first phase, and
8033 allocate space in the global offset table. */
8036 _bfd_mips_elf_check_relocs (abfd, info, sec, relocs)
8038 struct bfd_link_info *info;
8040 const Elf_Internal_Rela *relocs;
8044 Elf_Internal_Shdr *symtab_hdr;
8045 struct elf_link_hash_entry **sym_hashes;
8046 struct mips_got_info *g;
8048 const Elf_Internal_Rela *rel;
8049 const Elf_Internal_Rela *rel_end;
8052 struct elf_backend_data *bed;
8054 if (info->relocateable)
8057 dynobj = elf_hash_table (info)->dynobj;
8058 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8059 sym_hashes = elf_sym_hashes (abfd);
8060 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
8062 /* Check for the mips16 stub sections. */
8064 name = bfd_get_section_name (abfd, sec);
8065 if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0)
8067 unsigned long r_symndx;
8069 /* Look at the relocation information to figure out which symbol
8072 r_symndx = ELF32_R_SYM (relocs->r_info);
8074 if (r_symndx < extsymoff
8075 || sym_hashes[r_symndx - extsymoff] == NULL)
8079 /* This stub is for a local symbol. This stub will only be
8080 needed if there is some relocation in this BFD, other
8081 than a 16 bit function call, which refers to this symbol. */
8082 for (o = abfd->sections; o != NULL; o = o->next)
8084 Elf_Internal_Rela *sec_relocs;
8085 const Elf_Internal_Rela *r, *rend;
8087 /* We can ignore stub sections when looking for relocs. */
8088 if ((o->flags & SEC_RELOC) == 0
8089 || o->reloc_count == 0
8090 || strncmp (bfd_get_section_name (abfd, o), FN_STUB,
8091 sizeof FN_STUB - 1) == 0
8092 || strncmp (bfd_get_section_name (abfd, o), CALL_STUB,
8093 sizeof CALL_STUB - 1) == 0
8094 || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB,
8095 sizeof CALL_FP_STUB - 1) == 0)
8098 sec_relocs = (_bfd_elf32_link_read_relocs
8099 (abfd, o, (PTR) NULL,
8100 (Elf_Internal_Rela *) NULL,
8101 info->keep_memory));
8102 if (sec_relocs == NULL)
8105 rend = sec_relocs + o->reloc_count;
8106 for (r = sec_relocs; r < rend; r++)
8107 if (ELF32_R_SYM (r->r_info) == r_symndx
8108 && ELF32_R_TYPE (r->r_info) != R_MIPS16_26)
8111 if (! info->keep_memory)
8120 /* There is no non-call reloc for this stub, so we do
8121 not need it. Since this function is called before
8122 the linker maps input sections to output sections, we
8123 can easily discard it by setting the SEC_EXCLUDE
8125 sec->flags |= SEC_EXCLUDE;
8129 /* Record this stub in an array of local symbol stubs for
8131 if (elf_tdata (abfd)->local_stubs == NULL)
8133 unsigned long symcount;
8137 if (elf_bad_symtab (abfd))
8138 symcount = NUM_SHDR_ENTRIES (symtab_hdr);
8140 symcount = symtab_hdr->sh_info;
8141 amt = symcount * sizeof (asection *);
8142 n = (asection **) bfd_zalloc (abfd, amt);
8145 elf_tdata (abfd)->local_stubs = n;
8148 elf_tdata (abfd)->local_stubs[r_symndx] = sec;
8150 /* We don't need to set mips16_stubs_seen in this case.
8151 That flag is used to see whether we need to look through
8152 the global symbol table for stubs. We don't need to set
8153 it here, because we just have a local stub. */
8157 struct mips_elf_link_hash_entry *h;
8159 h = ((struct mips_elf_link_hash_entry *)
8160 sym_hashes[r_symndx - extsymoff]);
8162 /* H is the symbol this stub is for. */
8165 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8168 else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
8169 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8171 unsigned long r_symndx;
8172 struct mips_elf_link_hash_entry *h;
8175 /* Look at the relocation information to figure out which symbol
8178 r_symndx = ELF32_R_SYM (relocs->r_info);
8180 if (r_symndx < extsymoff
8181 || sym_hashes[r_symndx - extsymoff] == NULL)
8183 /* This stub was actually built for a static symbol defined
8184 in the same file. We assume that all static symbols in
8185 mips16 code are themselves mips16, so we can simply
8186 discard this stub. Since this function is called before
8187 the linker maps input sections to output sections, we can
8188 easily discard it by setting the SEC_EXCLUDE flag. */
8189 sec->flags |= SEC_EXCLUDE;
8193 h = ((struct mips_elf_link_hash_entry *)
8194 sym_hashes[r_symndx - extsymoff]);
8196 /* H is the symbol this stub is for. */
8198 if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8199 loc = &h->call_fp_stub;
8201 loc = &h->call_stub;
8203 /* If we already have an appropriate stub for this function, we
8204 don't need another one, so we can discard this one. Since
8205 this function is called before the linker maps input sections
8206 to output sections, we can easily discard it by setting the
8207 SEC_EXCLUDE flag. We can also discard this section if we
8208 happen to already know that this is a mips16 function; it is
8209 not necessary to check this here, as it is checked later, but
8210 it is slightly faster to check now. */
8211 if (*loc != NULL || h->root.other == STO_MIPS16)
8213 sec->flags |= SEC_EXCLUDE;
8218 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8228 sgot = mips_elf_got_section (dynobj);
8233 BFD_ASSERT (elf_section_data (sgot) != NULL);
8234 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
8235 BFD_ASSERT (g != NULL);
8240 bed = get_elf_backend_data (abfd);
8241 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
8242 for (rel = relocs; rel < rel_end; ++rel)
8244 unsigned long r_symndx;
8245 unsigned int r_type;
8246 struct elf_link_hash_entry *h;
8248 r_symndx = ELF32_R_SYM (rel->r_info);
8249 r_type = ELF32_R_TYPE (rel->r_info);
8251 if (r_symndx < extsymoff)
8253 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
8255 (*_bfd_error_handler)
8256 (_("%s: Malformed reloc detected for section %s"),
8257 bfd_archive_filename (abfd), name);
8258 bfd_set_error (bfd_error_bad_value);
8263 h = sym_hashes[r_symndx - extsymoff];
8265 /* This may be an indirect symbol created because of a version. */
8268 while (h->root.type == bfd_link_hash_indirect)
8269 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8273 /* Some relocs require a global offset table. */
8274 if (dynobj == NULL || sgot == NULL)
8280 case R_MIPS_CALL_HI16:
8281 case R_MIPS_CALL_LO16:
8282 case R_MIPS_GOT_HI16:
8283 case R_MIPS_GOT_LO16:
8284 case R_MIPS_GOT_PAGE:
8285 case R_MIPS_GOT_OFST:
8286 case R_MIPS_GOT_DISP:
8288 elf_hash_table (info)->dynobj = dynobj = abfd;
8289 if (! mips_elf_create_got_section (dynobj, info))
8291 g = mips_elf_got_info (dynobj, &sgot);
8298 && (info->shared || h != NULL)
8299 && (sec->flags & SEC_ALLOC) != 0)
8300 elf_hash_table (info)->dynobj = dynobj = abfd;
8308 if (!h && (r_type == R_MIPS_CALL_LO16
8309 || r_type == R_MIPS_GOT_LO16
8310 || r_type == R_MIPS_GOT_DISP))
8312 /* We may need a local GOT entry for this relocation. We
8313 don't count R_MIPS_GOT_PAGE because we can estimate the
8314 maximum number of pages needed by looking at the size of
8315 the segment. Similar comments apply to R_MIPS_GOT16 and
8316 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
8317 R_MIPS_CALL_HI16 because these are always followed by an
8318 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
8320 This estimation is very conservative since we can merge
8321 duplicate entries in the GOT. In order to be less
8322 conservative, we could actually build the GOT here,
8323 rather than in relocate_section. */
8325 sgot->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
8333 (*_bfd_error_handler)
8334 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
8335 bfd_archive_filename (abfd), (unsigned long) rel->r_offset);
8336 bfd_set_error (bfd_error_bad_value);
8341 case R_MIPS_CALL_HI16:
8342 case R_MIPS_CALL_LO16:
8345 /* This symbol requires a global offset table entry. */
8346 if (!mips_elf_record_global_got_symbol (h, info, g))
8349 /* We need a stub, not a plt entry for the undefined
8350 function. But we record it as if it needs plt. See
8351 elf_adjust_dynamic_symbol in elflink.h. */
8352 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
8358 case R_MIPS_GOT_HI16:
8359 case R_MIPS_GOT_LO16:
8360 case R_MIPS_GOT_DISP:
8361 /* This symbol requires a global offset table entry. */
8362 if (h && !mips_elf_record_global_got_symbol (h, info, g))
8369 if ((info->shared || h != NULL)
8370 && (sec->flags & SEC_ALLOC) != 0)
8374 const char *dname = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj);
8376 sreloc = bfd_get_section_by_name (dynobj, dname);
8379 sreloc = bfd_make_section (dynobj, dname);
8381 || ! bfd_set_section_flags (dynobj, sreloc,
8386 | SEC_LINKER_CREATED
8388 || ! bfd_set_section_alignment (dynobj, sreloc,
8393 #define MIPS_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
8396 /* When creating a shared object, we must copy these
8397 reloc types into the output file as R_MIPS_REL32
8398 relocs. We make room for this reloc in the
8399 .rel.dyn reloc section. */
8400 mips_elf_allocate_dynamic_relocations (dynobj, 1);
8401 if ((sec->flags & MIPS_READONLY_SECTION)
8402 == MIPS_READONLY_SECTION)
8403 /* We tell the dynamic linker that there are
8404 relocations against the text segment. */
8405 info->flags |= DF_TEXTREL;
8409 struct mips_elf_link_hash_entry *hmips;
8411 /* We only need to copy this reloc if the symbol is
8412 defined in a dynamic object. */
8413 hmips = (struct mips_elf_link_hash_entry *) h;
8414 ++hmips->possibly_dynamic_relocs;
8415 if ((sec->flags & MIPS_READONLY_SECTION)
8416 == MIPS_READONLY_SECTION)
8417 /* We need it to tell the dynamic linker if there
8418 are relocations against the text segment. */
8419 hmips->readonly_reloc = true;
8422 /* Even though we don't directly need a GOT entry for
8423 this symbol, a symbol must have a dynamic symbol
8424 table index greater that DT_MIPS_GOTSYM if there are
8425 dynamic relocations against it. */
8427 && !mips_elf_record_global_got_symbol (h, info, g))
8431 if (SGI_COMPAT (abfd))
8432 mips_elf_hash_table (info)->compact_rel_size +=
8433 sizeof (Elf32_External_crinfo);
8437 case R_MIPS_GPREL16:
8438 case R_MIPS_LITERAL:
8439 case R_MIPS_GPREL32:
8440 if (SGI_COMPAT (abfd))
8441 mips_elf_hash_table (info)->compact_rel_size +=
8442 sizeof (Elf32_External_crinfo);
8445 /* This relocation describes the C++ object vtable hierarchy.
8446 Reconstruct it for later use during GC. */
8447 case R_MIPS_GNU_VTINHERIT:
8448 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
8452 /* This relocation describes which C++ vtable entries are actually
8453 used. Record for later use during GC. */
8454 case R_MIPS_GNU_VTENTRY:
8455 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
8463 /* We must not create a stub for a symbol that has relocations
8464 related to taking the function's address. */
8470 struct mips_elf_link_hash_entry *mh;
8472 mh = (struct mips_elf_link_hash_entry *) h;
8473 mh->no_fn_stub = true;
8477 case R_MIPS_CALL_HI16:
8478 case R_MIPS_CALL_LO16:
8482 /* If this reloc is not a 16 bit call, and it has a global
8483 symbol, then we will need the fn_stub if there is one.
8484 References from a stub section do not count. */
8486 && r_type != R_MIPS16_26
8487 && strncmp (bfd_get_section_name (abfd, sec), FN_STUB,
8488 sizeof FN_STUB - 1) != 0
8489 && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB,
8490 sizeof CALL_STUB - 1) != 0
8491 && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB,
8492 sizeof CALL_FP_STUB - 1) != 0)
8494 struct mips_elf_link_hash_entry *mh;
8496 mh = (struct mips_elf_link_hash_entry *) h;
8497 mh->need_fn_stub = true;
8504 /* Return the section that should be marked against GC for a given
8508 _bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
8510 struct bfd_link_info *info ATTRIBUTE_UNUSED;
8511 Elf_Internal_Rela *rel;
8512 struct elf_link_hash_entry *h;
8513 Elf_Internal_Sym *sym;
8515 /* ??? Do mips16 stub sections need to be handled special? */
8519 switch (ELF32_R_TYPE (rel->r_info))
8521 case R_MIPS_GNU_VTINHERIT:
8522 case R_MIPS_GNU_VTENTRY:
8526 switch (h->root.type)
8528 case bfd_link_hash_defined:
8529 case bfd_link_hash_defweak:
8530 return h->root.u.def.section;
8532 case bfd_link_hash_common:
8533 return h->root.u.c.p->section;
8542 return bfd_section_from_elf_index (abfd, sym->st_shndx);
8548 /* Update the got entry reference counts for the section being removed. */
8551 _bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
8552 bfd *abfd ATTRIBUTE_UNUSED;
8553 struct bfd_link_info *info ATTRIBUTE_UNUSED;
8554 asection *sec ATTRIBUTE_UNUSED;
8555 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
8558 Elf_Internal_Shdr *symtab_hdr;
8559 struct elf_link_hash_entry **sym_hashes;
8560 bfd_signed_vma *local_got_refcounts;
8561 const Elf_Internal_Rela *rel, *relend;
8562 unsigned long r_symndx;
8563 struct elf_link_hash_entry *h;
8565 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8566 sym_hashes = elf_sym_hashes (abfd);
8567 local_got_refcounts = elf_local_got_refcounts (abfd);
8569 relend = relocs + sec->reloc_count;
8570 for (rel = relocs; rel < relend; rel++)
8571 switch (ELF32_R_TYPE (rel->r_info))
8575 case R_MIPS_CALL_HI16:
8576 case R_MIPS_CALL_LO16:
8577 case R_MIPS_GOT_HI16:
8578 case R_MIPS_GOT_LO16:
8579 /* ??? It would seem that the existing MIPS code does no sort
8580 of reference counting or whatnot on its GOT and PLT entries,
8581 so it is not possible to garbage collect them at this time. */
8592 /* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8593 hiding the old indirect symbol. Process additional relocation
8594 information. Also called for weakdefs, in which case we just let
8595 _bfd_elf_link_hash_copy_indirect copy the flags for us. */
8598 _bfd_mips_elf_copy_indirect_symbol (dir, ind)
8599 struct elf_link_hash_entry *dir, *ind;
8601 struct mips_elf_link_hash_entry *dirmips, *indmips;
8603 _bfd_elf_link_hash_copy_indirect (dir, ind);
8605 if (ind->root.type != bfd_link_hash_indirect)
8608 dirmips = (struct mips_elf_link_hash_entry *) dir;
8609 indmips = (struct mips_elf_link_hash_entry *) ind;
8610 dirmips->possibly_dynamic_relocs += indmips->possibly_dynamic_relocs;
8611 if (indmips->readonly_reloc)
8612 dirmips->readonly_reloc = true;
8613 if (dirmips->min_dyn_reloc_index == 0
8614 || (indmips->min_dyn_reloc_index != 0
8615 && indmips->min_dyn_reloc_index < dirmips->min_dyn_reloc_index))
8616 dirmips->min_dyn_reloc_index = indmips->min_dyn_reloc_index;
8617 if (indmips->no_fn_stub)
8618 dirmips->no_fn_stub = true;
8621 /* Adjust a symbol defined by a dynamic object and referenced by a
8622 regular object. The current definition is in some section of the
8623 dynamic object, but we're not including those sections. We have to
8624 change the definition to something the rest of the link can
8628 _bfd_mips_elf_adjust_dynamic_symbol (info, h)
8629 struct bfd_link_info *info;
8630 struct elf_link_hash_entry *h;
8633 struct mips_elf_link_hash_entry *hmips;
8636 dynobj = elf_hash_table (info)->dynobj;
8638 /* Make sure we know what is going on here. */
8639 BFD_ASSERT (dynobj != NULL
8640 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
8641 || h->weakdef != NULL
8642 || ((h->elf_link_hash_flags
8643 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8644 && (h->elf_link_hash_flags
8645 & ELF_LINK_HASH_REF_REGULAR) != 0
8646 && (h->elf_link_hash_flags
8647 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
8649 /* If this symbol is defined in a dynamic object, we need to copy
8650 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8652 hmips = (struct mips_elf_link_hash_entry *) h;
8653 if (! info->relocateable
8654 && hmips->possibly_dynamic_relocs != 0
8655 && (h->root.type == bfd_link_hash_defweak
8656 || (h->elf_link_hash_flags
8657 & ELF_LINK_HASH_DEF_REGULAR) == 0))
8659 mips_elf_allocate_dynamic_relocations (dynobj,
8660 hmips->possibly_dynamic_relocs);
8661 if (hmips->readonly_reloc)
8662 /* We tell the dynamic linker that there are relocations
8663 against the text segment. */
8664 info->flags |= DF_TEXTREL;
8667 /* For a function, create a stub, if allowed. */
8668 if (! hmips->no_fn_stub
8669 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
8671 if (! elf_hash_table (info)->dynamic_sections_created)
8674 /* If this symbol is not defined in a regular file, then set
8675 the symbol to the stub location. This is required to make
8676 function pointers compare as equal between the normal
8677 executable and the shared library. */
8678 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
8680 /* We need .stub section. */
8681 s = bfd_get_section_by_name (dynobj,
8682 MIPS_ELF_STUB_SECTION_NAME (dynobj));
8683 BFD_ASSERT (s != NULL);
8685 h->root.u.def.section = s;
8686 h->root.u.def.value = s->_raw_size;
8688 /* XXX Write this stub address somewhere. */
8689 h->plt.offset = s->_raw_size;
8691 /* Make room for this stub code. */
8692 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8694 /* The last half word of the stub will be filled with the index
8695 of this symbol in .dynsym section. */
8699 else if ((h->type == STT_FUNC)
8700 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
8702 /* This will set the entry for this symbol in the GOT to 0, and
8703 the dynamic linker will take care of this. */
8704 h->root.u.def.value = 0;
8708 /* If this is a weak symbol, and there is a real definition, the
8709 processor independent code will have arranged for us to see the
8710 real definition first, and we can just use the same value. */
8711 if (h->weakdef != NULL)
8713 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
8714 || h->weakdef->root.type == bfd_link_hash_defweak);
8715 h->root.u.def.section = h->weakdef->root.u.def.section;
8716 h->root.u.def.value = h->weakdef->root.u.def.value;
8720 /* This is a reference to a symbol defined by a dynamic object which
8721 is not a function. */
8726 /* This function is called after all the input files have been read,
8727 and the input sections have been assigned to output sections. We
8728 check for any mips16 stub sections that we can discard. */
8730 static boolean mips_elf_check_mips16_stubs
8731 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
8734 _bfd_mips_elf_always_size_sections (output_bfd, info)
8736 struct bfd_link_info *info;
8740 /* The .reginfo section has a fixed size. */
8741 ri = bfd_get_section_by_name (output_bfd, ".reginfo");
8743 bfd_set_section_size (output_bfd, ri,
8744 (bfd_size_type) sizeof (Elf32_External_RegInfo));
8746 if (info->relocateable
8747 || ! mips_elf_hash_table (info)->mips16_stubs_seen)
8750 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
8751 mips_elf_check_mips16_stubs,
8757 /* Check the mips16 stubs for a particular symbol, and see if we can
8761 mips_elf_check_mips16_stubs (h, data)
8762 struct mips_elf_link_hash_entry *h;
8763 PTR data ATTRIBUTE_UNUSED;
8765 if (h->fn_stub != NULL
8766 && ! h->need_fn_stub)
8768 /* We don't need the fn_stub; the only references to this symbol
8769 are 16 bit calls. Clobber the size to 0 to prevent it from
8770 being included in the link. */
8771 h->fn_stub->_raw_size = 0;
8772 h->fn_stub->_cooked_size = 0;
8773 h->fn_stub->flags &= ~SEC_RELOC;
8774 h->fn_stub->reloc_count = 0;
8775 h->fn_stub->flags |= SEC_EXCLUDE;
8778 if (h->call_stub != NULL
8779 && h->root.other == STO_MIPS16)
8781 /* We don't need the call_stub; this is a 16 bit function, so
8782 calls from other 16 bit functions are OK. Clobber the size
8783 to 0 to prevent it from being included in the link. */
8784 h->call_stub->_raw_size = 0;
8785 h->call_stub->_cooked_size = 0;
8786 h->call_stub->flags &= ~SEC_RELOC;
8787 h->call_stub->reloc_count = 0;
8788 h->call_stub->flags |= SEC_EXCLUDE;
8791 if (h->call_fp_stub != NULL
8792 && h->root.other == STO_MIPS16)
8794 /* We don't need the call_stub; this is a 16 bit function, so
8795 calls from other 16 bit functions are OK. Clobber the size
8796 to 0 to prevent it from being included in the link. */
8797 h->call_fp_stub->_raw_size = 0;
8798 h->call_fp_stub->_cooked_size = 0;
8799 h->call_fp_stub->flags &= ~SEC_RELOC;
8800 h->call_fp_stub->reloc_count = 0;
8801 h->call_fp_stub->flags |= SEC_EXCLUDE;
8807 /* Set the sizes of the dynamic sections. */
8810 _bfd_mips_elf_size_dynamic_sections (output_bfd, info)
8812 struct bfd_link_info *info;
8817 struct mips_got_info *g = NULL;
8819 dynobj = elf_hash_table (info)->dynobj;
8820 BFD_ASSERT (dynobj != NULL);
8822 if (elf_hash_table (info)->dynamic_sections_created)
8824 /* Set the contents of the .interp section to the interpreter. */
8827 s = bfd_get_section_by_name (dynobj, ".interp");
8828 BFD_ASSERT (s != NULL);
8830 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1;
8832 = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd);
8836 /* The check_relocs and adjust_dynamic_symbol entry points have
8837 determined the sizes of the various dynamic sections. Allocate
8840 for (s = dynobj->sections; s != NULL; s = s->next)
8845 /* It's OK to base decisions on the section name, because none
8846 of the dynobj section names depend upon the input files. */
8847 name = bfd_get_section_name (dynobj, s);
8849 if ((s->flags & SEC_LINKER_CREATED) == 0)
8854 if (strncmp (name, ".rel", 4) == 0)
8856 if (s->_raw_size == 0)
8858 /* We only strip the section if the output section name
8859 has the same name. Otherwise, there might be several
8860 input sections for this output section. FIXME: This
8861 code is probably not needed these days anyhow, since
8862 the linker now does not create empty output sections. */
8863 if (s->output_section != NULL
8865 bfd_get_section_name (s->output_section->owner,
8866 s->output_section)) == 0)
8871 const char *outname;
8874 /* If this relocation section applies to a read only
8875 section, then we probably need a DT_TEXTREL entry.
8876 If the relocation section is .rel.dyn, we always
8877 assert a DT_TEXTREL entry rather than testing whether
8878 there exists a relocation to a read only section or
8880 outname = bfd_get_section_name (output_bfd,
8882 target = bfd_get_section_by_name (output_bfd, outname + 4);
8884 && (target->flags & SEC_READONLY) != 0
8885 && (target->flags & SEC_ALLOC) != 0)
8887 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0)
8890 /* We use the reloc_count field as a counter if we need
8891 to copy relocs into the output file. */
8893 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0)
8897 else if (strncmp (name, ".got", 4) == 0)
8900 bfd_size_type loadable_size = 0;
8901 bfd_size_type local_gotno;
8904 BFD_ASSERT (elf_section_data (s) != NULL);
8905 g = (struct mips_got_info *) elf_section_data (s)->tdata;
8906 BFD_ASSERT (g != NULL);
8908 /* Calculate the total loadable size of the output. That
8909 will give us the maximum number of GOT_PAGE entries
8911 for (sub = info->input_bfds; sub; sub = sub->link_next)
8913 asection *subsection;
8915 for (subsection = sub->sections;
8917 subsection = subsection->next)
8919 if ((subsection->flags & SEC_ALLOC) == 0)
8921 loadable_size += ((subsection->_raw_size + 0xf)
8922 &~ (bfd_size_type) 0xf);
8925 loadable_size += MIPS_FUNCTION_STUB_SIZE;
8927 /* Assume there are two loadable segments consisting of
8928 contiguous sections. Is 5 enough? */
8929 local_gotno = (loadable_size >> 16) + 5;
8930 if (IRIX_COMPAT (output_bfd) == ict_irix6)
8931 /* It's possible we will need GOT_PAGE entries as well as
8932 GOT16 entries. Often, these will be able to share GOT
8933 entries, but not always. */
8936 g->local_gotno += local_gotno;
8937 s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj);
8939 /* There has to be a global GOT entry for every symbol with
8940 a dynamic symbol table index of DT_MIPS_GOTSYM or
8941 higher. Therefore, it make sense to put those symbols
8942 that need GOT entries at the end of the symbol table. We
8944 if (!mips_elf_sort_hash_table (info, 1))
8947 if (g->global_gotsym != NULL)
8948 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
8950 /* If there are no global symbols, or none requiring
8951 relocations, then GLOBAL_GOTSYM will be NULL. */
8953 g->global_gotno = i;
8954 s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj);
8956 else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0)
8958 /* Irix rld assumes that the function stub isn't at the end
8959 of .text section. So put a dummy. XXX */
8960 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8962 else if (! info->shared
8963 && ! mips_elf_hash_table (info)->use_rld_obj_head
8964 && strncmp (name, ".rld_map", 8) == 0)
8966 /* We add a room for __rld_map. It will be filled in by the
8967 rtld to contain a pointer to the _r_debug structure. */
8970 else if (SGI_COMPAT (output_bfd)
8971 && strncmp (name, ".compact_rel", 12) == 0)
8972 s->_raw_size += mips_elf_hash_table (info)->compact_rel_size;
8973 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))
8975 s->_raw_size = (sizeof (Elf32_External_Msym)
8976 * (elf_hash_table (info)->dynsymcount
8977 + bfd_count_sections (output_bfd)));
8978 else if (strncmp (name, ".init", 5) != 0)
8980 /* It's not one of our sections, so don't allocate space. */
8986 _bfd_strip_section_from_output (info, s);
8990 /* Allocate memory for the section contents. */
8991 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
8992 if (s->contents == NULL && s->_raw_size != 0)
8994 bfd_set_error (bfd_error_no_memory);
8999 if (elf_hash_table (info)->dynamic_sections_created)
9001 /* Add some entries to the .dynamic section. We fill in the
9002 values later, in elf_mips_finish_dynamic_sections, but we
9003 must add the entries now so that we get the correct size for
9004 the .dynamic section. The DT_DEBUG entry is filled in by the
9005 dynamic linker and used by the debugger. */
9008 /* SGI object has the equivalence of DT_DEBUG in the
9009 DT_MIPS_RLD_MAP entry. */
9010 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
9012 if (!SGI_COMPAT (output_bfd))
9014 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9020 /* Shared libraries on traditional mips have DT_DEBUG. */
9021 if (!SGI_COMPAT (output_bfd))
9023 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9028 if (reltext && SGI_COMPAT (output_bfd))
9029 info->flags |= DF_TEXTREL;
9031 if ((info->flags & DF_TEXTREL) != 0)
9033 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
9037 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
9040 if (bfd_get_section_by_name (dynobj,
9041 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)))
9043 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
9046 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
9049 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
9053 if (SGI_COMPAT (output_bfd))
9055 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0))
9059 if (SGI_COMPAT (output_bfd))
9061 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0))
9065 if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
9067 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0))
9070 s = bfd_get_section_by_name (dynobj, ".liblist");
9071 BFD_ASSERT (s != NULL);
9073 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0))
9077 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0))
9080 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0))
9084 /* Time stamps in executable files are a bad idea. */
9085 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0))
9090 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0))
9095 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0))
9099 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0))
9102 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0))
9105 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0))
9108 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0))
9111 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0))
9114 if (IRIX_COMPAT (dynobj) == ict_irix5
9115 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0))
9118 if (IRIX_COMPAT (dynobj) == ict_irix6
9119 && (bfd_get_section_by_name
9120 (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj)))
9121 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
9124 if (bfd_get_section_by_name (dynobj,
9125 MIPS_ELF_MSYM_SECTION_NAME (dynobj))
9126 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0))
9133 /* If NAME is one of the special IRIX6 symbols defined by the linker,
9134 adjust it appropriately now. */
9137 mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym)
9138 bfd *abfd ATTRIBUTE_UNUSED;
9140 Elf_Internal_Sym *sym;
9142 /* The linker script takes care of providing names and values for
9143 these, but we must place them into the right sections. */
9144 static const char* const text_section_symbols[] = {
9147 "__dso_displacement",
9149 "__program_header_table",
9153 static const char* const data_section_symbols[] = {
9161 const char* const *p;
9164 for (i = 0; i < 2; ++i)
9165 for (p = (i == 0) ? text_section_symbols : data_section_symbols;
9168 if (strcmp (*p, name) == 0)
9170 /* All of these symbols are given type STT_SECTION by the
9172 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9174 /* The IRIX linker puts these symbols in special sections. */
9176 sym->st_shndx = SHN_MIPS_TEXT;
9178 sym->st_shndx = SHN_MIPS_DATA;
9184 /* Finish up dynamic symbol handling. We set the contents of various
9185 dynamic sections here. */
9188 _bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
9190 struct bfd_link_info *info;
9191 struct elf_link_hash_entry *h;
9192 Elf_Internal_Sym *sym;
9198 struct mips_got_info *g;
9200 struct mips_elf_link_hash_entry *mh;
9202 dynobj = elf_hash_table (info)->dynobj;
9203 gval = sym->st_value;
9204 mh = (struct mips_elf_link_hash_entry *) h;
9206 if (h->plt.offset != (bfd_vma) -1)
9210 bfd_byte stub[MIPS_FUNCTION_STUB_SIZE];
9212 /* This symbol has a stub. Set it up. */
9214 BFD_ASSERT (h->dynindx != -1);
9216 s = bfd_get_section_by_name (dynobj,
9217 MIPS_ELF_STUB_SECTION_NAME (dynobj));
9218 BFD_ASSERT (s != NULL);
9220 /* Fill the stub. */
9222 bfd_put_32 (output_bfd, (bfd_vma) STUB_LW (output_bfd), p);
9224 bfd_put_32 (output_bfd, (bfd_vma) STUB_MOVE (output_bfd), p);
9227 /* FIXME: Can h->dynindex be more than 64K? */
9228 if (h->dynindx & 0xffff0000)
9231 bfd_put_32 (output_bfd, (bfd_vma) STUB_JALR, p);
9233 bfd_put_32 (output_bfd, (bfd_vma) STUB_LI16 (output_bfd) + h->dynindx, p);
9235 BFD_ASSERT (h->plt.offset <= s->_raw_size);
9236 memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE);
9238 /* Mark the symbol as undefined. plt.offset != -1 occurs
9239 only for the referenced symbol. */
9240 sym->st_shndx = SHN_UNDEF;
9242 /* The run-time linker uses the st_value field of the symbol
9243 to reset the global offset table entry for this external
9244 to its stub address when unlinking a shared object. */
9245 gval = s->output_section->vma + s->output_offset + h->plt.offset;
9246 sym->st_value = gval;
9249 BFD_ASSERT (h->dynindx != -1
9250 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0);
9252 sgot = mips_elf_got_section (dynobj);
9253 BFD_ASSERT (sgot != NULL);
9254 BFD_ASSERT (elf_section_data (sgot) != NULL);
9255 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9256 BFD_ASSERT (g != NULL);
9258 /* Run through the global symbol table, creating GOT entries for all
9259 the symbols that need them. */
9260 if (g->global_gotsym != NULL
9261 && h->dynindx >= g->global_gotsym->dynindx)
9267 value = sym->st_value;
9270 /* For an entity defined in a shared object, this will be
9271 NULL. (For functions in shared objects for
9272 which we have created stubs, ST_VALUE will be non-NULL.
9273 That's because such the functions are now no longer defined
9274 in a shared object.) */
9276 if (info->shared && h->root.type == bfd_link_hash_undefined)
9279 value = h->root.u.def.value;
9281 offset = mips_elf_global_got_index (dynobj, h);
9282 MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset);
9285 /* Create a .msym entry, if appropriate. */
9286 smsym = bfd_get_section_by_name (dynobj,
9287 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
9290 Elf32_Internal_Msym msym;
9292 msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
9293 /* It is undocumented what the `1' indicates, but IRIX6 uses
9295 msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
9296 bfd_mips_elf_swap_msym_out
9298 ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
9301 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9302 name = h->root.root.string;
9303 if (strcmp (name, "_DYNAMIC") == 0
9304 || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
9305 sym->st_shndx = SHN_ABS;
9306 else if (strcmp (name, "_DYNAMIC_LINK") == 0
9307 || strcmp (name, "_DYNAMIC_LINKING") == 0)
9309 sym->st_shndx = SHN_ABS;
9310 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9313 else if (strcmp (name, "_gp_disp") == 0)
9315 sym->st_shndx = SHN_ABS;
9316 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9317 sym->st_value = elf_gp (output_bfd);
9319 else if (SGI_COMPAT (output_bfd))
9321 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
9322 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
9324 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9325 sym->st_other = STO_PROTECTED;
9327 sym->st_shndx = SHN_MIPS_DATA;
9329 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
9331 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9332 sym->st_other = STO_PROTECTED;
9333 sym->st_value = mips_elf_hash_table (info)->procedure_count;
9334 sym->st_shndx = SHN_ABS;
9336 else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS)
9338 if (h->type == STT_FUNC)
9339 sym->st_shndx = SHN_MIPS_TEXT;
9340 else if (h->type == STT_OBJECT)
9341 sym->st_shndx = SHN_MIPS_DATA;
9345 /* Handle the IRIX6-specific symbols. */
9346 if (IRIX_COMPAT (output_bfd) == ict_irix6)
9347 mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym);
9351 if (! mips_elf_hash_table (info)->use_rld_obj_head
9352 && (strcmp (name, "__rld_map") == 0
9353 || strcmp (name, "__RLD_MAP") == 0))
9355 asection *s = bfd_get_section_by_name (dynobj, ".rld_map");
9356 BFD_ASSERT (s != NULL);
9357 sym->st_value = s->output_section->vma + s->output_offset;
9358 bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents);
9359 if (mips_elf_hash_table (info)->rld_value == 0)
9360 mips_elf_hash_table (info)->rld_value = sym->st_value;
9362 else if (mips_elf_hash_table (info)->use_rld_obj_head
9363 && strcmp (name, "__rld_obj_head") == 0)
9365 /* IRIX6 does not use a .rld_map section. */
9366 if (IRIX_COMPAT (output_bfd) == ict_irix5
9367 || IRIX_COMPAT (output_bfd) == ict_none)
9368 BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map")
9370 mips_elf_hash_table (info)->rld_value = sym->st_value;
9374 /* If this is a mips16 symbol, force the value to be even. */
9375 if (sym->st_other == STO_MIPS16
9376 && (sym->st_value & 1) != 0)
9382 /* Finish up the dynamic sections. */
9385 _bfd_mips_elf_finish_dynamic_sections (output_bfd, info)
9387 struct bfd_link_info *info;
9392 struct mips_got_info *g;
9394 dynobj = elf_hash_table (info)->dynobj;
9396 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
9398 sgot = mips_elf_got_section (dynobj);
9403 BFD_ASSERT (elf_section_data (sgot) != NULL);
9404 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9405 BFD_ASSERT (g != NULL);
9408 if (elf_hash_table (info)->dynamic_sections_created)
9412 BFD_ASSERT (sdyn != NULL);
9413 BFD_ASSERT (g != NULL);
9415 for (b = sdyn->contents;
9416 b < sdyn->contents + sdyn->_raw_size;
9417 b += MIPS_ELF_DYN_SIZE (dynobj))
9419 Elf_Internal_Dyn dyn;
9425 /* Read in the current dynamic entry. */
9426 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
9428 /* Assume that we're going to modify it and write it out. */
9434 s = (bfd_get_section_by_name
9436 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)));
9437 BFD_ASSERT (s != NULL);
9438 dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj);
9442 /* Rewrite DT_STRSZ. */
9444 _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
9450 case DT_MIPS_CONFLICT:
9453 case DT_MIPS_LIBLIST:
9456 s = bfd_get_section_by_name (output_bfd, name);
9457 BFD_ASSERT (s != NULL);
9458 dyn.d_un.d_ptr = s->vma;
9461 case DT_MIPS_RLD_VERSION:
9462 dyn.d_un.d_val = 1; /* XXX */
9466 dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
9469 case DT_MIPS_CONFLICTNO:
9471 elemsize = sizeof (Elf32_Conflict);
9474 case DT_MIPS_LIBLISTNO:
9476 elemsize = sizeof (Elf32_Lib);
9478 s = bfd_get_section_by_name (output_bfd, name);
9481 if (s->_cooked_size != 0)
9482 dyn.d_un.d_val = s->_cooked_size / elemsize;
9484 dyn.d_un.d_val = s->_raw_size / elemsize;
9490 case DT_MIPS_TIME_STAMP:
9491 time ((time_t *) &dyn.d_un.d_val);
9494 case DT_MIPS_ICHECKSUM:
9499 case DT_MIPS_IVERSION:
9504 case DT_MIPS_BASE_ADDRESS:
9505 s = output_bfd->sections;
9506 BFD_ASSERT (s != NULL);
9507 dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff;
9510 case DT_MIPS_LOCAL_GOTNO:
9511 dyn.d_un.d_val = g->local_gotno;
9514 case DT_MIPS_UNREFEXTNO:
9515 /* The index into the dynamic symbol table which is the
9516 entry of the first external symbol that is not
9517 referenced within the same object. */
9518 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
9521 case DT_MIPS_GOTSYM:
9522 if (g->global_gotsym)
9524 dyn.d_un.d_val = g->global_gotsym->dynindx;
9527 /* In case if we don't have global got symbols we default
9528 to setting DT_MIPS_GOTSYM to the same value as
9529 DT_MIPS_SYMTABNO, so we just fall through. */
9531 case DT_MIPS_SYMTABNO:
9533 elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
9534 s = bfd_get_section_by_name (output_bfd, name);
9535 BFD_ASSERT (s != NULL);
9537 if (s->_cooked_size != 0)
9538 dyn.d_un.d_val = s->_cooked_size / elemsize;
9540 dyn.d_un.d_val = s->_raw_size / elemsize;
9543 case DT_MIPS_HIPAGENO:
9544 dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
9547 case DT_MIPS_RLD_MAP:
9548 dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value;
9551 case DT_MIPS_OPTIONS:
9552 s = (bfd_get_section_by_name
9553 (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
9554 dyn.d_un.d_ptr = s->vma;
9558 s = (bfd_get_section_by_name
9559 (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)));
9560 dyn.d_un.d_ptr = s->vma;
9569 (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
9574 /* The first entry of the global offset table will be filled at
9575 runtime. The second entry will be used by some runtime loaders.
9576 This isn't the case of Irix rld. */
9577 if (sgot != NULL && sgot->_raw_size > 0)
9579 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents);
9580 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000,
9581 sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd));
9585 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
9586 = MIPS_ELF_GOT_SIZE (output_bfd);
9591 Elf32_compact_rel cpt;
9593 /* ??? The section symbols for the output sections were set up in
9594 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9595 symbols. Should we do so? */
9597 smsym = bfd_get_section_by_name (dynobj,
9598 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
9601 Elf32_Internal_Msym msym;
9603 msym.ms_hash_value = 0;
9604 msym.ms_info = ELF32_MS_INFO (0, 1);
9606 for (s = output_bfd->sections; s != NULL; s = s->next)
9608 long dynindx = elf_section_data (s)->dynindx;
9610 bfd_mips_elf_swap_msym_out
9612 (((Elf32_External_Msym *) smsym->contents)
9617 if (SGI_COMPAT (output_bfd))
9619 /* Write .compact_rel section out. */
9620 s = bfd_get_section_by_name (dynobj, ".compact_rel");
9624 cpt.num = s->reloc_count;
9626 cpt.offset = (s->output_section->filepos
9627 + sizeof (Elf32_External_compact_rel));
9630 bfd_elf32_swap_compact_rel_out (output_bfd, &cpt,
9631 ((Elf32_External_compact_rel *)
9634 /* Clean up a dummy stub function entry in .text. */
9635 s = bfd_get_section_by_name (dynobj,
9636 MIPS_ELF_STUB_SECTION_NAME (dynobj));
9639 file_ptr dummy_offset;
9641 BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE);
9642 dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE;
9643 memset (s->contents + dummy_offset, 0,
9644 MIPS_FUNCTION_STUB_SIZE);
9649 /* We need to sort the entries of the dynamic relocation section. */
9651 if (!ABI_64_P (output_bfd))
9655 reldyn = bfd_get_section_by_name (dynobj,
9656 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9657 if (reldyn != NULL && reldyn->reloc_count > 2)
9659 reldyn_sorting_bfd = output_bfd;
9660 qsort ((Elf32_External_Rel *) reldyn->contents + 1,
9661 (size_t) reldyn->reloc_count - 1,
9662 sizeof (Elf32_External_Rel), sort_dynamic_relocs);
9666 /* Clean up a first relocation in .rel.dyn. */
9667 s = bfd_get_section_by_name (dynobj,
9668 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9669 if (s != NULL && s->_raw_size > 0)
9670 memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj));
9676 /* Support for core dump NOTE sections */
9678 _bfd_elf32_mips_grok_prstatus (abfd, note)
9680 Elf_Internal_Note *note;
9683 unsigned int raw_size;
9685 switch (note->descsz)
9690 case 256: /* Linux/MIPS */
9692 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
9695 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9704 /* Make a ".reg/999" section. */
9705 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
9706 raw_size, note->descpos + offset);
9710 _bfd_elf32_mips_grok_psinfo (abfd, note)
9712 Elf_Internal_Note *note;
9714 switch (note->descsz)
9719 case 128: /* Linux/MIPS elf_prpsinfo */
9720 elf_tdata (abfd)->core_program
9721 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
9722 elf_tdata (abfd)->core_command
9723 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
9726 /* Note that for some reason, a spurious space is tacked
9727 onto the end of the args in some (at least one anyway)
9728 implementations, so strip it off if it exists. */
9731 char *command = elf_tdata (abfd)->core_command;
9732 int n = strlen (command);
9734 if (0 < n && command[n - 1] == ' ')
9735 command[n - 1] = '\0';
9744 _bfd_elf32_mips_discard_info (abfd, cookie, info)
9746 struct elf_reloc_cookie *cookie;
9747 struct bfd_link_info *info;
9750 struct elf_backend_data *bed = get_elf_backend_data (abfd);
9751 boolean ret = false;
9752 unsigned char *tdata;
9755 o = bfd_get_section_by_name (abfd, ".pdr");
9758 if (o->_raw_size == 0)
9760 if (o->_raw_size % PDR_SIZE != 0)
9762 if (o->output_section != NULL
9763 && bfd_is_abs_section (o->output_section))
9766 tdata = bfd_zmalloc (o->_raw_size / PDR_SIZE);
9770 cookie->rels = _bfd_elf32_link_read_relocs (abfd, o, (PTR) NULL,
9771 (Elf_Internal_Rela *) NULL,
9779 cookie->rel = cookie->rels;
9781 cookie->rels + o->reloc_count * bed->s->int_rels_per_ext_rel;
9783 for (i = 0, skip = 0; i < o->_raw_size; i ++)
9785 if (_bfd_elf32_reloc_symbol_deleted_p (i * PDR_SIZE, cookie))
9794 elf_section_data (o)->tdata = tdata;
9795 o->_cooked_size = o->_raw_size - skip * PDR_SIZE;
9801 if (! info->keep_memory)
9802 free (cookie->rels);
9808 _bfd_elf32_mips_ignore_discarded_relocs (sec)
9811 if (strcmp (sec->name, ".pdr") == 0)
9817 _bfd_elf32_mips_write_section (output_bfd, sec, contents)
9822 bfd_byte *to, *from, *end;
9825 if (strcmp (sec->name, ".pdr") != 0)
9828 if (elf_section_data (sec)->tdata == NULL)
9832 end = contents + sec->_raw_size;
9833 for (from = contents, i = 0;
9835 from += PDR_SIZE, i++)
9837 if (((unsigned char *)elf_section_data (sec)->tdata)[i] == 1)
9840 memcpy (to, from, PDR_SIZE);
9843 bfd_set_section_contents (output_bfd, sec->output_section, contents,
9844 (file_ptr) sec->output_offset,
9849 /* This is almost identical to bfd_generic_get_... except that some
9850 MIPS relocations need to be handled specially. Sigh. */
9853 elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data,
9854 relocateable, symbols)
9856 struct bfd_link_info *link_info;
9857 struct bfd_link_order *link_order;
9859 boolean relocateable;
9862 /* Get enough memory to hold the stuff */
9863 bfd *input_bfd = link_order->u.indirect.section->owner;
9864 asection *input_section = link_order->u.indirect.section;
9866 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
9867 arelent **reloc_vector = NULL;
9873 reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
9874 if (reloc_vector == NULL && reloc_size != 0)
9877 /* read in the section */
9878 if (!bfd_get_section_contents (input_bfd,
9882 input_section->_raw_size))
9885 /* We're not relaxing the section, so just copy the size info */
9886 input_section->_cooked_size = input_section->_raw_size;
9887 input_section->reloc_done = true;
9889 reloc_count = bfd_canonicalize_reloc (input_bfd,
9893 if (reloc_count < 0)
9896 if (reloc_count > 0)
9901 bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */
9904 struct bfd_hash_entry *h;
9905 struct bfd_link_hash_entry *lh;
9906 /* Skip all this stuff if we aren't mixing formats. */
9907 if (abfd && input_bfd
9908 && abfd->xvec == input_bfd->xvec)
9912 h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false);
9913 lh = (struct bfd_link_hash_entry *) h;
9920 case bfd_link_hash_undefined:
9921 case bfd_link_hash_undefweak:
9922 case bfd_link_hash_common:
9925 case bfd_link_hash_defined:
9926 case bfd_link_hash_defweak:
9928 gp = lh->u.def.value;
9930 case bfd_link_hash_indirect:
9931 case bfd_link_hash_warning:
9933 /* @@FIXME ignoring warning for now */
9935 case bfd_link_hash_new:
9944 for (parent = reloc_vector; *parent != (arelent *) NULL;
9947 char *error_message = (char *) NULL;
9948 bfd_reloc_status_type r;
9950 /* Specific to MIPS: Deal with relocation types that require
9951 knowing the gp of the output bfd. */
9952 asymbol *sym = *(*parent)->sym_ptr_ptr;
9953 if (bfd_is_abs_section (sym->section) && abfd)
9955 /* The special_function wouldn't get called anyways. */
9959 /* The gp isn't there; let the special function code
9960 fall over on its own. */
9962 else if ((*parent)->howto->special_function
9963 == _bfd_mips_elf_gprel16_reloc)
9965 /* bypass special_function call */
9966 r = gprel16_with_gp (input_bfd, sym, *parent, input_section,
9967 relocateable, (PTR) data, gp);
9968 goto skip_bfd_perform_relocation;
9970 /* end mips specific stuff */
9972 r = bfd_perform_relocation (input_bfd,
9976 relocateable ? abfd : (bfd *) NULL,
9978 skip_bfd_perform_relocation:
9982 asection *os = input_section->output_section;
9984 /* A partial link, so keep the relocs */
9985 os->orelocation[os->reloc_count] = *parent;
9989 if (r != bfd_reloc_ok)
9993 case bfd_reloc_undefined:
9994 if (!((*link_info->callbacks->undefined_symbol)
9995 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
9996 input_bfd, input_section, (*parent)->address,
10000 case bfd_reloc_dangerous:
10001 BFD_ASSERT (error_message != (char *) NULL);
10002 if (!((*link_info->callbacks->reloc_dangerous)
10003 (link_info, error_message, input_bfd, input_section,
10004 (*parent)->address)))
10007 case bfd_reloc_overflow:
10008 if (!((*link_info->callbacks->reloc_overflow)
10009 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
10010 (*parent)->howto->name, (*parent)->addend,
10011 input_bfd, input_section, (*parent)->address)))
10014 case bfd_reloc_outofrange:
10023 if (reloc_vector != NULL)
10024 free (reloc_vector);
10028 if (reloc_vector != NULL)
10029 free (reloc_vector);
10033 #define bfd_elf32_bfd_get_relocated_section_contents \
10034 elf32_mips_get_relocated_section_contents
10036 /* ECOFF swapping routines. These are used when dealing with the
10037 .mdebug section, which is in the ECOFF debugging format. */
10038 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
10039 /* Symbol table magic number. */
10041 /* Alignment of debugging information. E.g., 4. */
10043 /* Sizes of external symbolic information. */
10044 sizeof (struct hdr_ext),
10045 sizeof (struct dnr_ext),
10046 sizeof (struct pdr_ext),
10047 sizeof (struct sym_ext),
10048 sizeof (struct opt_ext),
10049 sizeof (struct fdr_ext),
10050 sizeof (struct rfd_ext),
10051 sizeof (struct ext_ext),
10052 /* Functions to swap in external symbolic data. */
10061 _bfd_ecoff_swap_tir_in,
10062 _bfd_ecoff_swap_rndx_in,
10063 /* Functions to swap out external symbolic data. */
10064 ecoff_swap_hdr_out,
10065 ecoff_swap_dnr_out,
10066 ecoff_swap_pdr_out,
10067 ecoff_swap_sym_out,
10068 ecoff_swap_opt_out,
10069 ecoff_swap_fdr_out,
10070 ecoff_swap_rfd_out,
10071 ecoff_swap_ext_out,
10072 _bfd_ecoff_swap_tir_out,
10073 _bfd_ecoff_swap_rndx_out,
10074 /* Function to read in symbolic data. */
10075 _bfd_mips_elf_read_ecoff_info
10078 #define ELF_ARCH bfd_arch_mips
10079 #define ELF_MACHINE_CODE EM_MIPS
10081 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
10082 a value of 0x1000, and we are compatible. */
10083 #define ELF_MAXPAGESIZE 0x1000
10085 #define elf_backend_collect true
10086 #define elf_backend_type_change_ok true
10087 #define elf_backend_can_gc_sections true
10088 #define elf_info_to_howto mips_info_to_howto_rela
10089 #define elf_info_to_howto_rel mips_info_to_howto_rel
10090 #define elf_backend_sym_is_global mips_elf_sym_is_global
10091 #define elf_backend_object_p _bfd_mips_elf_object_p
10092 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
10093 #define elf_backend_section_processing _bfd_mips_elf_section_processing
10094 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
10095 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
10096 #define elf_backend_section_from_bfd_section \
10097 _bfd_mips_elf_section_from_bfd_section
10098 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
10099 #define elf_backend_link_output_symbol_hook \
10100 _bfd_mips_elf_link_output_symbol_hook
10101 #define elf_backend_create_dynamic_sections \
10102 _bfd_mips_elf_create_dynamic_sections
10103 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
10104 #define elf_backend_adjust_dynamic_symbol \
10105 _bfd_mips_elf_adjust_dynamic_symbol
10106 #define elf_backend_always_size_sections \
10107 _bfd_mips_elf_always_size_sections
10108 #define elf_backend_size_dynamic_sections \
10109 _bfd_mips_elf_size_dynamic_sections
10110 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
10111 #define elf_backend_finish_dynamic_symbol \
10112 _bfd_mips_elf_finish_dynamic_symbol
10113 #define elf_backend_finish_dynamic_sections \
10114 _bfd_mips_elf_finish_dynamic_sections
10115 #define elf_backend_final_write_processing \
10116 _bfd_mips_elf_final_write_processing
10117 #define elf_backend_additional_program_headers \
10118 _bfd_mips_elf_additional_program_headers
10119 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
10120 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
10121 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
10122 #define elf_backend_copy_indirect_symbol \
10123 _bfd_mips_elf_copy_indirect_symbol
10124 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
10125 #define elf_backend_grok_prstatus _bfd_elf32_mips_grok_prstatus
10126 #define elf_backend_grok_psinfo _bfd_elf32_mips_grok_psinfo
10127 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
10129 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
10130 #define elf_backend_plt_header_size 0
10131 #define elf_backend_may_use_rel_p 1
10132 #define elf_backend_may_use_rela_p 0
10133 #define elf_backend_default_use_rela_p 0
10134 #define elf_backend_sign_extend_vma true
10136 #define elf_backend_discard_info _bfd_elf32_mips_discard_info
10137 #define elf_backend_ignore_discarded_relocs \
10138 _bfd_elf32_mips_ignore_discarded_relocs
10139 #define elf_backend_write_section _bfd_elf32_mips_write_section
10141 #define bfd_elf32_bfd_is_local_label_name \
10142 mips_elf_is_local_label_name
10143 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
10144 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
10145 #define bfd_elf32_bfd_link_hash_table_create \
10146 _bfd_mips_elf_link_hash_table_create
10147 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
10148 #define bfd_elf32_bfd_copy_private_bfd_data \
10149 _bfd_mips_elf_copy_private_bfd_data
10150 #define bfd_elf32_bfd_merge_private_bfd_data \
10151 _bfd_mips_elf_merge_private_bfd_data
10152 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
10153 #define bfd_elf32_bfd_print_private_bfd_data \
10154 _bfd_mips_elf_print_private_bfd_data
10156 /* Support for SGI-ish mips targets. */
10157 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
10158 #define TARGET_LITTLE_NAME "elf32-littlemips"
10159 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
10160 #define TARGET_BIG_NAME "elf32-bigmips"
10162 #include "elf32-target.h"
10164 /* Support for traditional mips targets. */
10165 #define INCLUDED_TARGET_FILE /* More a type of flag. */
10167 #undef TARGET_LITTLE_SYM
10168 #undef TARGET_LITTLE_NAME
10169 #undef TARGET_BIG_SYM
10170 #undef TARGET_BIG_NAME
10172 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
10173 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
10174 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
10175 #define TARGET_BIG_NAME "elf32-tradbigmips"
10177 /* Include the target file again for this target */
10178 #include "elf32-target.h"
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