* linker.c (link_action): Ignore duplicate warning syms.
[deliverable/binutils-gdb.git] / bfd / elf32-mips.c
CommitLineData
efcbd82c 1/* MIPS-specific support for 32-bit ELF
3f0a7f7f 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
be3ccd9c 3 Free Software Foundation, Inc.
252b5132
RH
4
5 Most of the information added by Ian Lance Taylor, Cygnus Support,
6 <ian@cygnus.com>.
103186c6
MM
7 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
8 <mark@codesourcery.com>
f7cb7d68
UC
9 Traditional MIPS targets support added by Koundinya.K, Dansk Data
10 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
252b5132
RH
11
12This file is part of BFD, the Binary File Descriptor library.
13
14This program is free software; you can redistribute it and/or modify
15it under the terms of the GNU General Public License as published by
16the Free Software Foundation; either version 2 of the License, or
17(at your option) any later version.
18
19This program is distributed in the hope that it will be useful,
20but WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22GNU General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; if not, write to the Free Software
26Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
27
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. */
31
32#include "bfd.h"
33#include "sysdep.h"
34#include "libbfd.h"
35#include "bfdlink.h"
36#include "genlink.h"
37#include "elf-bfd.h"
38#include "elf/mips.h"
39
40/* Get the ECOFF swapping routines. */
41#include "coff/sym.h"
42#include "coff/symconst.h"
43#include "coff/internal.h"
44#include "coff/ecoff.h"
45#include "coff/mips.h"
23e2c83b 46#define ECOFF_SIGNED_32
252b5132
RH
47#include "ecoffswap.h"
48
7403cb63
MM
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. */
51
38b1a46c
NC
52struct mips_got_info
53{
7403cb63
MM
54 /* The global symbol in the GOT with the lowest index in the dynamic
55 symbol table. */
56 struct elf_link_hash_entry *global_gotsym;
b3be9b46
RH
57 /* The number of global .got entries. */
58 unsigned int global_gotno;
7403cb63
MM
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;
63};
64
65/* The MIPS ELF linker needs additional information for each symbol in
66 the global hash table. */
67
38b1a46c
NC
68struct mips_elf_link_hash_entry
69{
7403cb63
MM
70 struct elf_link_hash_entry root;
71
72 /* External symbol information. */
73 EXTR esym;
74
a3c7651d 75 /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against
be3ccd9c 76 this symbol. */
a3c7651d 77 unsigned int possibly_dynamic_relocs;
7403cb63 78
43917054
L
79 /* If the R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 reloc is against
80 a readonly section. */
81 boolean readonly_reloc;
82
7403cb63
MM
83 /* The index of the first dynamic relocation (in the .rel.dyn
84 section) against this symbol. */
85 unsigned int min_dyn_reloc_index;
86
9117d219
NC
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",
90 p. 4-20. */
91 boolean no_fn_stub;
92
7403cb63
MM
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. */
95 asection *fn_stub;
96
97 /* Whether we need the fn_stub; this is set if this symbol appears
98 in any relocs other than a 16 bit call. */
99 boolean need_fn_stub;
100
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. */
103 asection *call_stub;
104
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;
108};
109
252b5132
RH
110static bfd_reloc_status_type mips32_64bit_reloc
111 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
112static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
113 PARAMS ((bfd *, bfd_reloc_code_real_type));
c9b3cbf3
RH
114static reloc_howto_type *mips_rtype_to_howto
115 PARAMS ((unsigned int));
252b5132
RH
116static void mips_info_to_howto_rel
117 PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
3f830999
MM
118static void mips_info_to_howto_rela
119 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
252b5132
RH
120static void bfd_mips_elf32_swap_gptab_in
121 PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *));
122static void bfd_mips_elf32_swap_gptab_out
123 PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *));
86033394 124#if 0
be3ccd9c 125static void bfd_mips_elf_swap_msym_in
c6142e5d 126 PARAMS ((bfd *, const Elf32_External_Msym *, Elf32_Internal_Msym *));
86033394 127#endif
c6142e5d
MM
128static void bfd_mips_elf_swap_msym_out
129 PARAMS ((bfd *, const Elf32_Internal_Msym *, Elf32_External_Msym *));
252b5132 130static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *));
252b5132
RH
131static boolean mips_elf_create_procedure_table
132 PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *,
133 struct ecoff_debug_info *));
252b5132 134static INLINE int elf_mips_isa PARAMS ((flagword));
dc810e39 135static INLINE unsigned long elf_mips_mach PARAMS ((flagword));
103186c6 136static INLINE char* elf_mips_abi_name PARAMS ((bfd *));
252b5132
RH
137static boolean mips_elf_is_local_label_name
138 PARAMS ((bfd *, const char *));
139static struct bfd_hash_entry *mips_elf_link_hash_newfunc
140 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
252b5132 141static int gptab_compare PARAMS ((const void *, const void *));
252b5132
RH
142static bfd_reloc_status_type mips16_jump_reloc
143 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
144static bfd_reloc_status_type mips16_gprel_reloc
145 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
252b5132
RH
146static boolean mips_elf_create_compact_rel_section
147 PARAMS ((bfd *, struct bfd_link_info *));
148static boolean mips_elf_create_got_section
149 PARAMS ((bfd *, struct bfd_link_info *));
252b5132
RH
150static bfd_reloc_status_type mips_elf_final_gp
151 PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *));
152static bfd_byte *elf32_mips_get_relocated_section_contents
153 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
154 bfd_byte *, boolean, asymbol **));
be3ccd9c 155static asection *mips_elf_create_msym_section
c6142e5d 156 PARAMS ((bfd *));
be3ccd9c 157static void mips_elf_irix6_finish_dynamic_symbol
7403cb63
MM
158 PARAMS ((bfd *, const char *, Elf_Internal_Sym *));
159static bfd_vma mips_elf_sign_extend PARAMS ((bfd_vma, int));
160static boolean mips_elf_overflow_p PARAMS ((bfd_vma, int));
161static bfd_vma mips_elf_high PARAMS ((bfd_vma));
162static bfd_vma mips_elf_higher PARAMS ((bfd_vma));
163static bfd_vma mips_elf_highest PARAMS ((bfd_vma));
164static bfd_vma mips_elf_global_got_index
165 PARAMS ((bfd *, struct elf_link_hash_entry *));
166static bfd_vma mips_elf_local_got_index
167 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma));
168static bfd_vma mips_elf_got_offset_from_index
169 PARAMS ((bfd *, bfd *, bfd_vma));
be3ccd9c 170static boolean mips_elf_record_global_got_symbol
7403cb63
MM
171 PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *,
172 struct mips_got_info *));
173static bfd_vma mips_elf_got_page
174 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, bfd_vma *));
bb2d6cd7 175static const Elf_Internal_Rela *mips_elf_next_relocation
be3ccd9c 176 PARAMS ((unsigned int, const Elf_Internal_Rela *,
bb2d6cd7 177 const Elf_Internal_Rela *));
7403cb63
MM
178static bfd_reloc_status_type mips_elf_calculate_relocation
179 PARAMS ((bfd *, bfd *, asection *, struct bfd_link_info *,
103186c6 180 const Elf_Internal_Rela *, bfd_vma, reloc_howto_type *,
197b9ca0
MM
181 Elf_Internal_Sym *, asection **, bfd_vma *, const char **,
182 boolean *));
7403cb63 183static bfd_vma mips_elf_obtain_contents
103186c6 184 PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *));
197b9ca0 185static boolean mips_elf_perform_relocation
be3ccd9c 186 PARAMS ((struct bfd_link_info *, reloc_howto_type *,
e53bd91b 187 const Elf_Internal_Rela *, bfd_vma,
197b9ca0 188 bfd *, asection *, bfd_byte *, boolean));
7403cb63 189static boolean mips_elf_assign_gp PARAMS ((bfd *, bfd_vma *));
be3ccd9c 190static boolean mips_elf_sort_hash_table_f
7403cb63 191 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
be3ccd9c 192static boolean mips_elf_sort_hash_table
b3be9b46 193 PARAMS ((struct bfd_link_info *, unsigned long));
7403cb63 194static asection * mips_elf_got_section PARAMS ((bfd *));
be3ccd9c 195static struct mips_got_info *mips_elf_got_info
7403cb63 196 PARAMS ((bfd *, asection **));
6387d602 197static boolean mips_elf_local_relocation_p
b305ef96 198 PARAMS ((bfd *, const Elf_Internal_Rela *, asection **, boolean));
be3ccd9c 199static bfd_vma mips_elf_create_local_got_entry
7403cb63 200 PARAMS ((bfd *, struct mips_got_info *, asection *, bfd_vma));
be3ccd9c 201static bfd_vma mips_elf_got16_entry
b305ef96 202 PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, boolean));
be3ccd9c 203static boolean mips_elf_create_dynamic_relocation
103186c6 204 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *,
7b1f1231 205 struct mips_elf_link_hash_entry *, asection *,
9117d219 206 bfd_vma, bfd_vma *, asection *));
be3ccd9c 207static void mips_elf_allocate_dynamic_relocations
103186c6 208 PARAMS ((bfd *, unsigned int));
be3ccd9c 209static boolean mips_elf_stub_section_p
197b9ca0 210 PARAMS ((bfd *, asection *));
adb76a3e
UC
211static int sort_dynamic_relocs
212 PARAMS ((const void *, const void *));
9e80ff3a 213static void _bfd_mips_elf_hide_symbol
e5094212 214 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean));
9e80ff3a
L
215static void _bfd_mips_elf_copy_indirect_symbol
216 PARAMS ((struct elf_link_hash_entry *,
217 struct elf_link_hash_entry *));
218static boolean _bfd_elf32_mips_grok_prstatus
219 PARAMS ((bfd *, Elf_Internal_Note *));
220static boolean _bfd_elf32_mips_grok_psinfo
221 PARAMS ((bfd *, Elf_Internal_Note *));
73d074b4
DJ
222static boolean _bfd_elf32_mips_discard_info
223 PARAMS ((bfd *, struct elf_reloc_cookie *, struct bfd_link_info *));
224static boolean _bfd_elf32_mips_ignore_discarded_relocs
225 PARAMS ((asection *));
226static boolean _bfd_elf32_mips_write_section
227 PARAMS ((bfd *, asection *, bfd_byte *));
252b5132 228
f7cb7d68 229extern const bfd_target bfd_elf32_tradbigmips_vec;
fdbafa10 230extern const bfd_target bfd_elf32_tradlittlemips_vec;
b3baf5d0 231#ifdef BFD64
fdbafa10
L
232extern const bfd_target bfd_elf64_tradbigmips_vec;
233extern const bfd_target bfd_elf64_tradlittlemips_vec;
b3baf5d0 234#endif
f7cb7d68 235
a94a7c1c 236/* The level of IRIX compatibility we're striving for. */
252b5132 237
a94a7c1c
MM
238typedef enum {
239 ict_none,
240 ict_irix5,
241 ict_irix6
242} irix_compat_t;
243
adb76a3e
UC
244/* This will be used when we sort the dynamic relocation records. */
245static bfd *reldyn_sorting_bfd;
246
a94a7c1c
MM
247/* Nonzero if ABFD is using the N32 ABI. */
248
249#define ABI_N32_P(abfd) \
250 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
251
fdbafa10 252/* Nonzero if ABFD is using the 64-bit ABI. */
5e38c3b8
MM
253#define ABI_64_P(abfd) \
254 ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0)
255
f7cb7d68 256/* Depending on the target vector we generate some version of Irix
be3ccd9c 257 executables or "normal" MIPS ELF ABI executables. */
b3baf5d0 258#ifdef BFD64
a94a7c1c 259#define IRIX_COMPAT(abfd) \
fdbafa10
L
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 : \
f7cb7d68 264 ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5))
b3baf5d0
NC
265#else
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))
270#endif
a94a7c1c 271
d75bc93d
TS
272#define NEWABI_P(abfd) (ABI_N32_P(abfd) || ABI_64_P(abfd))
273
4e8a9624 274/* Whether we are trying to be compatible with IRIX at all. */
a94a7c1c
MM
275#define SGI_COMPAT(abfd) \
276 (IRIX_COMPAT (abfd) != ict_none)
252b5132 277
c6142e5d
MM
278/* The name of the msym section. */
279#define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym"
280
303f629d
MM
281/* The name of the srdata section. */
282#define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata"
283
284/* The name of the options section. */
285#define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \
286 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options")
287
288/* The name of the stub section. */
289#define MIPS_ELF_STUB_SECTION_NAME(abfd) \
290 (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub")
291
103186c6
MM
292/* The name of the dynamic relocation section. */
293#define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn"
294
295/* The size of an external REL relocation. */
296#define MIPS_ELF_REL_SIZE(abfd) \
297 (get_elf_backend_data (abfd)->s->sizeof_rel)
298
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)
302
303/* The size of a GOT entry. */
304#define MIPS_ELF_GOT_SIZE(abfd) \
305 (get_elf_backend_data (abfd)->s->arch_size / 8)
306
307/* The size of a symbol-table entry. */
308#define MIPS_ELF_SYM_SIZE(abfd) \
309 (get_elf_backend_data (abfd)->s->sizeof_sym)
310
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)
314
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))
318
319/* Put out word-sized data. */
320#define MIPS_ELF_PUT_WORD(abfd, val, ptr) \
321 (ABI_64_P (abfd) \
322 ? bfd_put_64 (abfd, val, ptr) \
323 : bfd_put_32 (abfd, val, ptr))
324
325/* Add a dynamic symbol table-entry. */
9ebbd33e 326#ifdef BFD64
dc810e39
AM
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))
9ebbd33e 331#else
dc810e39
AM
332#define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \
333 (ABI_64_P (elf_hash_table (info)->dynobj) \
1e738b87 334 ? (boolean) (abort (), false) \
dc810e39 335 : bfd_elf32_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val))
9ebbd33e 336#endif
103186c6 337
252b5132
RH
338/* The number of local .got entries we reserve. */
339#define MIPS_RESERVED_GOTNO (2)
340
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)
103186c6
MM
344#define STUB_LW(abfd) \
345 (SGI_COMPAT (abfd) \
346 ? (ABI_64_P (abfd) \
347 ? 0xdf998010 /* ld t9,0x8010(gp) */ \
348 : 0x8f998010) /* lw t9,0x8010(gp) */ \
f7cb7d68
UC
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 */
252b5132
RH
355#define MIPS_FUNCTION_STUB_SIZE (16)
356
357#if 0
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. */
361
362/* Names of sections which appear in the .dynsym section in an Irix 5
363 executable. */
364
38b1a46c
NC
365static const char * const mips_elf_dynsym_sec_names[] =
366{
252b5132
RH
367 ".text",
368 ".init",
369 ".fini",
370 ".data",
371 ".rodata",
372 ".sdata",
373 ".sbss",
374 ".bss",
375 NULL
376};
377
378#define SIZEOF_MIPS_DYNSYM_SECNAMES \
379 (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0])
380
381/* The number of entries in mips_elf_dynsym_sec_names which go in the
382 text segment. */
383
384#define MIPS_TEXT_DYNSYM_SECNO (3)
385
386#endif /* 0 */
387
388/* The names of the runtime procedure table symbols used on Irix 5. */
389
38b1a46c
NC
390static const char * const mips_elf_dynsym_rtproc_names[] =
391{
252b5132
RH
392 "_procedure_table",
393 "_procedure_string_table",
394 "_procedure_table_size",
395 NULL
396};
397
398/* These structures are used to generate the .compact_rel section on
399 Irix 5. */
400
38b1a46c
NC
401typedef struct
402{
252b5132
RH
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? */
409} Elf32_compact_rel;
410
38b1a46c
NC
411typedef struct
412{
252b5132
RH
413 bfd_byte id1[4];
414 bfd_byte num[4];
415 bfd_byte id2[4];
416 bfd_byte offset[4];
417 bfd_byte reserved0[4];
418 bfd_byte reserved1[4];
419} Elf32_External_compact_rel;
420
38b1a46c
NC
421typedef struct
422{
252b5132 423 unsigned int ctype : 1; /* 1: long 0: short format. See below. */
be3ccd9c 424 unsigned int rtype : 4; /* Relocation types. See below. */
252b5132
RH
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. */
429} Elf32_crinfo;
430
38b1a46c
NC
431typedef struct
432{
252b5132 433 unsigned int ctype : 1; /* 1: long 0: short format. See below. */
be3ccd9c 434 unsigned int rtype : 4; /* Relocation types. See below. */
252b5132
RH
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. */
438} Elf32_crinfo2;
439
38b1a46c
NC
440typedef struct
441{
252b5132
RH
442 bfd_byte info[4];
443 bfd_byte konst[4];
444 bfd_byte vaddr[4];
445} Elf32_External_crinfo;
446
38b1a46c
NC
447typedef struct
448{
252b5132
RH
449 bfd_byte info[4];
450 bfd_byte konst[4];
451} Elf32_External_crinfo2;
452
453/* These are the constants used to swap the bitfields in a crinfo. */
454
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)
463
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
469
470/* There are 4 types of compact relocation at least. The value KONST
471 has different meaning for each type:
472
473 (type) (konst)
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
478 */
479
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
484
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)
489
490static void bfd_elf32_swap_compact_rel_out
491 PARAMS ((bfd *, const Elf32_compact_rel *, Elf32_External_compact_rel *));
492static void bfd_elf32_swap_crinfo_out
493 PARAMS ((bfd *, const Elf32_crinfo *, Elf32_External_crinfo *));
494
3f830999
MM
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)
498
d75bc93d
TS
499/* The relocation table used for SHT_REL sections. */
500
501static reloc_howto_type elf_mips_howto_table_rel[] =
502{
503 /* No relocation. */
504 HOWTO (R_MIPS_NONE, /* type */
505 0, /* rightshift */
506 0, /* size (0 = byte, 1 = short, 2 = long) */
507 0, /* bitsize */
508 false, /* pc_relative */
509 0, /* bitpos */
510 complain_overflow_dont, /* complain_on_overflow */
511 bfd_elf_generic_reloc, /* special_function */
512 "R_MIPS_NONE", /* name */
513 false, /* partial_inplace */
514 0, /* src_mask */
515 0, /* dst_mask */
516 false), /* pcrel_offset */
517
518 /* 16 bit relocation. */
519 HOWTO (R_MIPS_16, /* type */
520 0, /* rightshift */
521 2, /* size (0 = byte, 1 = short, 2 = long) */
522 16, /* bitsize */
523 false, /* pc_relative */
524 0, /* bitpos */
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 */
532
533 /* 32 bit relocation. */
534 HOWTO (R_MIPS_32, /* type */
535 0, /* rightshift */
536 2, /* size (0 = byte, 1 = short, 2 = long) */
537 32, /* bitsize */
538 false, /* pc_relative */
539 0, /* bitpos */
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 */
547
548 /* 32 bit symbol relative relocation. */
549 HOWTO (R_MIPS_REL32, /* type */
550 0, /* rightshift */
551 2, /* size (0 = byte, 1 = short, 2 = long) */
552 32, /* bitsize */
553 false, /* pc_relative */
554 0, /* bitpos */
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 */
562
563 /* 26 bit jump address. */
564 HOWTO (R_MIPS_26, /* type */
565 2, /* rightshift */
566 2, /* size (0 = byte, 1 = short, 2 = long) */
567 26, /* bitsize */
568 false, /* pc_relative */
569 0, /* bitpos */
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 */
580
581 /* High 16 bits of symbol value. */
582 HOWTO (R_MIPS_HI16, /* type */
583 0, /* rightshift */
584 2, /* size (0 = byte, 1 = short, 2 = long) */
585 16, /* bitsize */
586 false, /* pc_relative */
587 0, /* bitpos */
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 */
595
596 /* Low 16 bits of symbol value. */
597 HOWTO (R_MIPS_LO16, /* type */
598 0, /* rightshift */
599 2, /* size (0 = byte, 1 = short, 2 = long) */
600 16, /* bitsize */
601 false, /* pc_relative */
602 0, /* bitpos */
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 */
610
611 /* GP relative reference. */
612 HOWTO (R_MIPS_GPREL16, /* type */
613 0, /* rightshift */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
615 16, /* bitsize */
616 false, /* pc_relative */
617 0, /* bitpos */
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 */
625
626 /* Reference to literal section. */
627 HOWTO (R_MIPS_LITERAL, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 16, /* bitsize */
631 false, /* pc_relative */
632 0, /* bitpos */
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 */
640
641 /* Reference to global offset table. */
642 HOWTO (R_MIPS_GOT16, /* type */
643 0, /* rightshift */
644 2, /* size (0 = byte, 1 = short, 2 = long) */
645 16, /* bitsize */
646 false, /* pc_relative */
647 0, /* bitpos */
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 */
655
656 /* 16 bit PC relative reference. */
657 HOWTO (R_MIPS_PC16, /* type */
658 0, /* rightshift */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
660 16, /* bitsize */
661 true, /* pc_relative */
662 0, /* bitpos */
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 */
670
671 /* 16 bit call through global offset table. */
672 HOWTO (R_MIPS_CALL16, /* type */
673 0, /* rightshift */
674 2, /* size (0 = byte, 1 = short, 2 = long) */
675 16, /* bitsize */
676 false, /* pc_relative */
677 0, /* bitpos */
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 */
685
686 /* 32 bit GP relative reference. */
687 HOWTO (R_MIPS_GPREL32, /* type */
688 0, /* rightshift */
689 2, /* size (0 = byte, 1 = short, 2 = long) */
690 32, /* bitsize */
691 false, /* pc_relative */
692 0, /* bitpos */
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 */
700
701 /* The remaining relocs are defined on Irix 5, although they are
702 not defined by the ABI. */
703 EMPTY_HOWTO (13),
704 EMPTY_HOWTO (14),
705 EMPTY_HOWTO (15),
706
707 /* A 5 bit shift field. */
708 HOWTO (R_MIPS_SHIFT5, /* type */
709 0, /* rightshift */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
711 5, /* bitsize */
712 false, /* pc_relative */
713 6, /* bitpos */
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 */
721
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 */
726 0, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 6, /* bitsize */
729 false, /* pc_relative */
730 6, /* bitpos */
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 */
738
739 /* A 64 bit relocation. */
740 HOWTO (R_MIPS_64, /* type */
741 0, /* rightshift */
742 4, /* size (0 = byte, 1 = short, 2 = long) */
743 64, /* bitsize */
744 false, /* pc_relative */
745 0, /* bitpos */
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 */
753
754 /* Displacement in the global offset table. */
755 HOWTO (R_MIPS_GOT_DISP, /* type */
756 0, /* rightshift */
757 2, /* size (0 = byte, 1 = short, 2 = long) */
758 16, /* bitsize */
759 false, /* pc_relative */
760 0, /* bitpos */
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 */
768
769 /* Displacement to page pointer in the global offset table. */
770 HOWTO (R_MIPS_GOT_PAGE, /* type */
771 0, /* rightshift */
772 2, /* size (0 = byte, 1 = short, 2 = long) */
773 16, /* bitsize */
774 false, /* pc_relative */
775 0, /* bitpos */
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 */
783
784 /* Offset from page pointer in the global offset table. */
785 HOWTO (R_MIPS_GOT_OFST, /* type */
786 0, /* rightshift */
787 2, /* size (0 = byte, 1 = short, 2 = long) */
788 16, /* bitsize */
789 false, /* pc_relative */
790 0, /* bitpos */
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 */
798
799 /* High 16 bits of displacement in global offset table. */
800 HOWTO (R_MIPS_GOT_HI16, /* type */
801 0, /* rightshift */
802 2, /* size (0 = byte, 1 = short, 2 = long) */
803 16, /* bitsize */
804 false, /* pc_relative */
805 0, /* bitpos */
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 */
813
814 /* Low 16 bits of displacement in global offset table. */
815 HOWTO (R_MIPS_GOT_LO16, /* type */
816 0, /* rightshift */
817 2, /* size (0 = byte, 1 = short, 2 = long) */
818 16, /* bitsize */
819 false, /* pc_relative */
820 0, /* bitpos */
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 */
828
829 /* 64 bit subtraction. Used in the N32 ABI. */
830 HOWTO (R_MIPS_SUB, /* type */
831 0, /* rightshift */
832 4, /* size (0 = byte, 1 = short, 2 = long) */
833 64, /* bitsize */
834 false, /* pc_relative */
835 0, /* bitpos */
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 */
843
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),
848
849 /* Get the higher value of a 64 bit addend. */
850 HOWTO (R_MIPS_HIGHER, /* type */
851 0, /* rightshift */
852 2, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
854 false, /* pc_relative */
855 0, /* bitpos */
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 */
863
864 /* Get the highest value of a 64 bit addend. */
865 HOWTO (R_MIPS_HIGHEST, /* type */
866 0, /* rightshift */
867 2, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
869 false, /* pc_relative */
870 0, /* bitpos */
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 */
878
879 /* High 16 bits of displacement in global offset table. */
880 HOWTO (R_MIPS_CALL_HI16, /* type */
881 0, /* rightshift */
882 2, /* size (0 = byte, 1 = short, 2 = long) */
883 16, /* bitsize */
884 false, /* pc_relative */
885 0, /* bitpos */
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 */
893
894 /* Low 16 bits of displacement in global offset table. */
895 HOWTO (R_MIPS_CALL_LO16, /* type */
896 0, /* rightshift */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
898 16, /* bitsize */
899 false, /* pc_relative */
900 0, /* bitpos */
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 */
908
909 /* Section displacement. */
910 HOWTO (R_MIPS_SCN_DISP, /* type */
911 0, /* rightshift */
912 2, /* size (0 = byte, 1 = short, 2 = long) */
913 32, /* bitsize */
914 false, /* pc_relative */
915 0, /* bitpos */
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 */
923
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),
928
929 /* Protected jump conversion. This is an optimization hint. No
930 relocation is required for correctness. */
931 HOWTO (R_MIPS_JALR, /* type */
932 0, /* rightshift */
933 2, /* size (0 = byte, 1 = short, 2 = long) */
934 32, /* bitsize */
935 false, /* pc_relative */
936 0, /* bitpos */
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 */
944};
945
946/* The relocation table used for SHT_RELA sections. */
947
948static reloc_howto_type elf_mips_howto_table_rela[] =
38b1a46c 949{
252b5132
RH
950 /* No relocation. */
951 HOWTO (R_MIPS_NONE, /* type */
952 0, /* rightshift */
953 0, /* size (0 = byte, 1 = short, 2 = long) */
954 0, /* bitsize */
955 false, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_dont, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_MIPS_NONE", /* name */
960 false, /* partial_inplace */
961 0, /* src_mask */
962 0, /* dst_mask */
963 false), /* pcrel_offset */
964
965 /* 16 bit relocation. */
966 HOWTO (R_MIPS_16, /* type */
967 0, /* rightshift */
d75bc93d 968 2, /* size (0 = byte, 1 = short, 2 = long) */
252b5132
RH
969 16, /* bitsize */
970 false, /* pc_relative */
971 0, /* bitpos */
d75bc93d 972 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
973 bfd_elf_generic_reloc, /* special_function */
974 "R_MIPS_16", /* name */
d75bc93d
TS
975 false, /* partial_inplace */
976 0, /* src_mask */
977 0x0000, /* dst_mask */
252b5132
RH
978 false), /* pcrel_offset */
979
980 /* 32 bit relocation. */
981 HOWTO (R_MIPS_32, /* type */
982 0, /* rightshift */
983 2, /* size (0 = byte, 1 = short, 2 = long) */
984 32, /* bitsize */
985 false, /* pc_relative */
986 0, /* bitpos */
7e766c3b 987 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
988 bfd_elf_generic_reloc, /* special_function */
989 "R_MIPS_32", /* name */
d75bc93d
TS
990 false, /* partial_inplace */
991 0, /* src_mask */
252b5132
RH
992 0xffffffff, /* dst_mask */
993 false), /* pcrel_offset */
994
995 /* 32 bit symbol relative relocation. */
996 HOWTO (R_MIPS_REL32, /* type */
997 0, /* rightshift */
998 2, /* size (0 = byte, 1 = short, 2 = long) */
999 32, /* bitsize */
1000 false, /* pc_relative */
1001 0, /* bitpos */
7e766c3b 1002 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
1003 bfd_elf_generic_reloc, /* special_function */
1004 "R_MIPS_REL32", /* name */
d75bc93d
TS
1005 false, /* partial_inplace */
1006 0, /* src_mask */
252b5132
RH
1007 0xffffffff, /* dst_mask */
1008 false), /* pcrel_offset */
1009
062e2358 1010 /* 26 bit jump address. */
252b5132
RH
1011 HOWTO (R_MIPS_26, /* type */
1012 2, /* rightshift */
1013 2, /* size (0 = byte, 1 = short, 2 = long) */
1014 26, /* bitsize */
1015 false, /* pc_relative */
1016 0, /* bitpos */
1017 complain_overflow_dont, /* complain_on_overflow */
d75bc93d
TS
1018 /* This needs complex overflow
1019 detection, because the upper 36
9117d219 1020 bits must match the PC + 4. */
252b5132
RH
1021 bfd_elf_generic_reloc, /* special_function */
1022 "R_MIPS_26", /* name */
d75bc93d
TS
1023 false, /* partial_inplace */
1024 0, /* src_mask */
1025 0x03ffffff, /* dst_mask */
252b5132
RH
1026 false), /* pcrel_offset */
1027
d75bc93d 1028 /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for 64 bit REL. */
252b5132
RH
1029 /* High 16 bits of symbol value. */
1030 HOWTO (R_MIPS_HI16, /* type */
1031 0, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 16, /* bitsize */
1034 false, /* pc_relative */
1035 0, /* bitpos */
1036 complain_overflow_dont, /* complain_on_overflow */
d75bc93d 1037 bfd_elf_generic_reloc, /* special_function */
252b5132 1038 "R_MIPS_HI16", /* name */
d75bc93d
TS
1039 false, /* partial_inplace */
1040 0, /* src_mask */
1041 0x0000ffff, /* dst_mask */
252b5132
RH
1042 false), /* pcrel_offset */
1043
1044 /* Low 16 bits of symbol value. */
1045 HOWTO (R_MIPS_LO16, /* type */
1046 0, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 false, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
d75bc93d 1052 bfd_elf_generic_reloc, /* special_function */
252b5132 1053 "R_MIPS_LO16", /* name */
d75bc93d
TS
1054 false, /* partial_inplace */
1055 0, /* src_mask */
1056 0x0000ffff, /* dst_mask */
252b5132
RH
1057 false), /* pcrel_offset */
1058
1059 /* GP relative reference. */
1060 HOWTO (R_MIPS_GPREL16, /* type */
1061 0, /* rightshift */
1062 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 false, /* pc_relative */
1065 0, /* bitpos */
1066 complain_overflow_signed, /* complain_on_overflow */
1067 _bfd_mips_elf_gprel16_reloc, /* special_function */
1068 "R_MIPS_GPREL16", /* name */
d75bc93d
TS
1069 false, /* partial_inplace */
1070 0, /* src_mask */
1071 0x0000ffff, /* dst_mask */
252b5132
RH
1072 false), /* pcrel_offset */
1073
1074 /* Reference to literal section. */
1075 HOWTO (R_MIPS_LITERAL, /* type */
1076 0, /* rightshift */
1077 2, /* size (0 = byte, 1 = short, 2 = long) */
1078 16, /* bitsize */
1079 false, /* pc_relative */
1080 0, /* bitpos */
1081 complain_overflow_signed, /* complain_on_overflow */
1082 _bfd_mips_elf_gprel16_reloc, /* special_function */
1083 "R_MIPS_LITERAL", /* name */
d75bc93d
TS
1084 false, /* partial_inplace */
1085 0, /* src_mask */
1086 0x0000ffff, /* dst_mask */
252b5132
RH
1087 false), /* pcrel_offset */
1088
1089 /* Reference to global offset table. */
d75bc93d 1090 /* FIXME: This is not handled correctly. */
252b5132
RH
1091 HOWTO (R_MIPS_GOT16, /* type */
1092 0, /* rightshift */
1093 2, /* size (0 = byte, 1 = short, 2 = long) */
1094 16, /* bitsize */
1095 false, /* pc_relative */
1096 0, /* bitpos */
1097 complain_overflow_signed, /* complain_on_overflow */
d75bc93d 1098 bfd_elf_generic_reloc, /* special_function */
252b5132
RH
1099 "R_MIPS_GOT16", /* name */
1100 false, /* partial_inplace */
d75bc93d
TS
1101 0, /* src_mask */
1102 0x0000ffff, /* dst_mask */
252b5132
RH
1103 false), /* pcrel_offset */
1104
1105 /* 16 bit PC relative reference. */
1106 HOWTO (R_MIPS_PC16, /* type */
1107 0, /* rightshift */
1108 2, /* size (0 = byte, 1 = short, 2 = long) */
1109 16, /* bitsize */
1110 true, /* pc_relative */
1111 0, /* bitpos */
1112 complain_overflow_signed, /* complain_on_overflow */
1113 bfd_elf_generic_reloc, /* special_function */
1114 "R_MIPS_PC16", /* name */
d75bc93d
TS
1115 false, /* partial_inplace */
1116 0, /* src_mask */
1117 0x0000ffff, /* dst_mask */
bb2d6cd7 1118 true), /* pcrel_offset */
252b5132
RH
1119
1120 /* 16 bit call through global offset table. */
d75bc93d 1121 /* FIXME: This is not handled correctly. */
252b5132
RH
1122 HOWTO (R_MIPS_CALL16, /* type */
1123 0, /* rightshift */
1124 2, /* size (0 = byte, 1 = short, 2 = long) */
1125 16, /* bitsize */
1126 false, /* pc_relative */
1127 0, /* bitpos */
1128 complain_overflow_signed, /* complain_on_overflow */
1129 bfd_elf_generic_reloc, /* special_function */
1130 "R_MIPS_CALL16", /* name */
1131 false, /* partial_inplace */
d75bc93d
TS
1132 0, /* src_mask */
1133 0x0000ffff, /* dst_mask */
252b5132
RH
1134 false), /* pcrel_offset */
1135
1136 /* 32 bit GP relative reference. */
1137 HOWTO (R_MIPS_GPREL32, /* type */
1138 0, /* rightshift */
1139 2, /* size (0 = byte, 1 = short, 2 = long) */
1140 32, /* bitsize */
1141 false, /* pc_relative */
1142 0, /* bitpos */
7e766c3b 1143 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
1144 _bfd_mips_elf_gprel32_reloc, /* special_function */
1145 "R_MIPS_GPREL32", /* name */
d75bc93d
TS
1146 false, /* partial_inplace */
1147 0, /* src_mask */
252b5132
RH
1148 0xffffffff, /* dst_mask */
1149 false), /* pcrel_offset */
1150
d75bc93d
TS
1151 EMPTY_HOWTO (13),
1152 EMPTY_HOWTO (14),
1153 EMPTY_HOWTO (15),
252b5132
RH
1154
1155 /* A 5 bit shift field. */
1156 HOWTO (R_MIPS_SHIFT5, /* type */
1157 0, /* rightshift */
1158 2, /* size (0 = byte, 1 = short, 2 = long) */
1159 5, /* bitsize */
1160 false, /* pc_relative */
1161 6, /* bitpos */
1162 complain_overflow_bitfield, /* complain_on_overflow */
1163 bfd_elf_generic_reloc, /* special_function */
1164 "R_MIPS_SHIFT5", /* name */
d75bc93d
TS
1165 false, /* partial_inplace */
1166 0, /* src_mask */
252b5132
RH
1167 0x000007c0, /* dst_mask */
1168 false), /* pcrel_offset */
1169
1170 /* A 6 bit shift field. */
d75bc93d 1171 /* FIXME: Not handled correctly. */
252b5132
RH
1172 HOWTO (R_MIPS_SHIFT6, /* type */
1173 0, /* rightshift */
1174 2, /* size (0 = byte, 1 = short, 2 = long) */
1175 6, /* bitsize */
1176 false, /* pc_relative */
1177 6, /* bitpos */
1178 complain_overflow_bitfield, /* complain_on_overflow */
d75bc93d 1179 bfd_elf_generic_reloc, /* special_function */
252b5132 1180 "R_MIPS_SHIFT6", /* name */
d75bc93d
TS
1181 false, /* partial_inplace */
1182 0, /* src_mask */
252b5132
RH
1183 0x000007c4, /* dst_mask */
1184 false), /* pcrel_offset */
1185
d75bc93d 1186 /* 64 bit relocation. */
252b5132
RH
1187 HOWTO (R_MIPS_64, /* type */
1188 0, /* rightshift */
a3c7651d
MM
1189 4, /* size (0 = byte, 1 = short, 2 = long) */
1190 64, /* bitsize */
252b5132
RH
1191 false, /* pc_relative */
1192 0, /* bitpos */
7e766c3b 1193 complain_overflow_dont, /* complain_on_overflow */
d75bc93d 1194 bfd_elf_generic_reloc, /* special_function */
252b5132 1195 "R_MIPS_64", /* name */
d75bc93d
TS
1196 false, /* partial_inplace */
1197 0, /* src_mask */
a3c7651d 1198 MINUS_ONE, /* dst_mask */
252b5132
RH
1199 false), /* pcrel_offset */
1200
1201 /* Displacement in the global offset table. */
d75bc93d 1202 /* FIXME: Not handled correctly. */
252b5132
RH
1203 HOWTO (R_MIPS_GOT_DISP, /* type */
1204 0, /* rightshift */
1205 2, /* size (0 = byte, 1 = short, 2 = long) */
1206 16, /* bitsize */
1207 false, /* pc_relative */
1208 0, /* bitpos */
7e766c3b 1209 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
1210 bfd_elf_generic_reloc, /* special_function */
1211 "R_MIPS_GOT_DISP", /* name */
d75bc93d
TS
1212 false, /* partial_inplace */
1213 0, /* src_mask */
252b5132
RH
1214 0x0000ffff, /* dst_mask */
1215 false), /* pcrel_offset */
1216
1217 /* Displacement to page pointer in the global offset table. */
d75bc93d 1218 /* FIXME: Not handled correctly. */
252b5132
RH
1219 HOWTO (R_MIPS_GOT_PAGE, /* type */
1220 0, /* rightshift */
1221 2, /* size (0 = byte, 1 = short, 2 = long) */
1222 16, /* bitsize */
1223 false, /* pc_relative */
1224 0, /* bitpos */
7e766c3b 1225 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
1226 bfd_elf_generic_reloc, /* special_function */
1227 "R_MIPS_GOT_PAGE", /* name */
d75bc93d
TS
1228 false, /* partial_inplace */
1229 0, /* src_mask */
252b5132
RH
1230 0x0000ffff, /* dst_mask */
1231 false), /* pcrel_offset */
1232
1233 /* Offset from page pointer in the global offset table. */
d75bc93d 1234 /* FIXME: Not handled correctly. */
252b5132
RH
1235 HOWTO (R_MIPS_GOT_OFST, /* type */
1236 0, /* rightshift */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 16, /* bitsize */
1239 false, /* pc_relative */
1240 0, /* bitpos */
7e766c3b 1241 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
1242 bfd_elf_generic_reloc, /* special_function */
1243 "R_MIPS_GOT_OFST", /* name */
d75bc93d
TS
1244 false, /* partial_inplace */
1245 0, /* src_mask */
252b5132
RH
1246 0x0000ffff, /* dst_mask */
1247 false), /* pcrel_offset */
1248
1249 /* High 16 bits of displacement in global offset table. */
d75bc93d 1250 /* FIXME: Not handled correctly. */
252b5132
RH
1251 HOWTO (R_MIPS_GOT_HI16, /* type */
1252 0, /* rightshift */
1253 2, /* size (0 = byte, 1 = short, 2 = long) */
1254 16, /* bitsize */
1255 false, /* pc_relative */
1256 0, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 bfd_elf_generic_reloc, /* special_function */
1259 "R_MIPS_GOT_HI16", /* name */
d75bc93d
TS
1260 false, /* partial_inplace */
1261 0, /* src_mask */
252b5132
RH
1262 0x0000ffff, /* dst_mask */
1263 false), /* pcrel_offset */
1264
1265 /* Low 16 bits of displacement in global offset table. */
d75bc93d 1266 /* FIXME: Not handled correctly. */
252b5132
RH
1267 HOWTO (R_MIPS_GOT_LO16, /* type */
1268 0, /* rightshift */
1269 2, /* size (0 = byte, 1 = short, 2 = long) */
1270 16, /* bitsize */
1271 false, /* pc_relative */
1272 0, /* bitpos */
1273 complain_overflow_dont, /* complain_on_overflow */
1274 bfd_elf_generic_reloc, /* special_function */
1275 "R_MIPS_GOT_LO16", /* name */
d75bc93d
TS
1276 false, /* partial_inplace */
1277 0, /* src_mask */
252b5132
RH
1278 0x0000ffff, /* dst_mask */
1279 false), /* pcrel_offset */
1280
d75bc93d
TS
1281 /* 64 bit substraction. */
1282 /* FIXME: Not handled correctly. */
3f830999
MM
1283 HOWTO (R_MIPS_SUB, /* type */
1284 0, /* rightshift */
1285 4, /* size (0 = byte, 1 = short, 2 = long) */
1286 64, /* bitsize */
1287 false, /* pc_relative */
1288 0, /* bitpos */
7e766c3b 1289 complain_overflow_dont, /* complain_on_overflow */
3f830999
MM
1290 bfd_elf_generic_reloc, /* special_function */
1291 "R_MIPS_SUB", /* name */
d75bc93d
TS
1292 false, /* partial_inplace */
1293 0, /* src_mask */
3f830999
MM
1294 MINUS_ONE, /* dst_mask */
1295 false), /* pcrel_offset */
252b5132 1296
d75bc93d
TS
1297 /* Insert the addend as an instruction. */
1298 /* FIXME: Not handled correctly. */
1299 HOWTO (R_MIPS_INSERT_A, /* type */
1300 0, /* rightshift */
1301 2, /* size (0 = byte, 1 = short, 2 = long) */
1302 32, /* bitsize */
1303 false, /* pc_relative */
1304 0, /* bitpos */
1305 complain_overflow_dont, /* complain_on_overflow */
1306 bfd_elf_generic_reloc, /* special_function */
1307 "R_MIPS_INSERT_A", /* name */
1308 false, /* partial_inplace */
1309 0, /* src_mask */
1310 0xffffffff, /* dst_mask */
1311 false), /* pcrel_offset */
1312
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 */
1317 0, /* rightshift */
1318 2, /* size (0 = byte, 1 = short, 2 = long) */
1319 32, /* bitsize */
1320 false, /* pc_relative */
1321 0, /* bitpos */
1322 complain_overflow_dont, /* complain_on_overflow */
1323 bfd_elf_generic_reloc, /* special_function */
1324 "R_MIPS_INSERT_B", /* name */
1325 false, /* partial_inplace */
1326 0, /* src_mask */
1327 0xffffffff, /* dst_mask */
1328 false), /* pcrel_offset */
1329
1330 /* Delete a 32 bit instruction. */
1331 /* FIXME: Not handled correctly. */
1332 HOWTO (R_MIPS_DELETE, /* type */
1333 0, /* rightshift */
1334 2, /* size (0 = byte, 1 = short, 2 = long) */
1335 32, /* bitsize */
1336 false, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 bfd_elf_generic_reloc, /* special_function */
1340 "R_MIPS_DELETE", /* name */
1341 false, /* partial_inplace */
1342 0, /* src_mask */
1343 0xffffffff, /* dst_mask */
1344 false), /* pcrel_offset */
252b5132 1345
103186c6
MM
1346 /* Get the higher value of a 64 bit addend. */
1347 HOWTO (R_MIPS_HIGHER, /* type */
1348 0, /* rightshift */
1349 2, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 false, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_dont, /* complain_on_overflow */
d75bc93d 1354 bfd_elf_generic_reloc, /* special_function */
103186c6 1355 "R_MIPS_HIGHER", /* name */
d75bc93d
TS
1356 false, /* partial_inplace */
1357 0, /* src_mask */
1358 0x0000ffff, /* dst_mask */
103186c6
MM
1359 false), /* pcrel_offset */
1360
1361 /* Get the highest value of a 64 bit addend. */
1362 HOWTO (R_MIPS_HIGHEST, /* type */
1363 0, /* rightshift */
1364 2, /* size (0 = byte, 1 = short, 2 = long) */
1365 16, /* bitsize */
1366 false, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_dont, /* complain_on_overflow */
d75bc93d 1369 bfd_elf_generic_reloc, /* special_function */
103186c6 1370 "R_MIPS_HIGHEST", /* name */
d75bc93d
TS
1371 false, /* partial_inplace */
1372 0, /* src_mask */
1373 0x0000ffff, /* dst_mask */
103186c6 1374 false), /* pcrel_offset */
252b5132
RH
1375
1376 /* High 16 bits of displacement in global offset table. */
d75bc93d 1377 /* FIXME: Not handled correctly. */
252b5132
RH
1378 HOWTO (R_MIPS_CALL_HI16, /* type */
1379 0, /* rightshift */
1380 2, /* size (0 = byte, 1 = short, 2 = long) */
1381 16, /* bitsize */
1382 false, /* pc_relative */
1383 0, /* bitpos */
1384 complain_overflow_dont, /* complain_on_overflow */
1385 bfd_elf_generic_reloc, /* special_function */
1386 "R_MIPS_CALL_HI16", /* name */
d75bc93d
TS
1387 false, /* partial_inplace */
1388 0, /* src_mask */
252b5132
RH
1389 0x0000ffff, /* dst_mask */
1390 false), /* pcrel_offset */
1391
1392 /* Low 16 bits of displacement in global offset table. */
d75bc93d 1393 /* FIXME: Not handled correctly. */
252b5132
RH
1394 HOWTO (R_MIPS_CALL_LO16, /* type */
1395 0, /* rightshift */
1396 2, /* size (0 = byte, 1 = short, 2 = long) */
1397 16, /* bitsize */
1398 false, /* pc_relative */
1399 0, /* bitpos */
1400 complain_overflow_dont, /* complain_on_overflow */
1401 bfd_elf_generic_reloc, /* special_function */
1402 "R_MIPS_CALL_LO16", /* name */
d75bc93d
TS
1403 false, /* partial_inplace */
1404 0, /* src_mask */
252b5132
RH
1405 0x0000ffff, /* dst_mask */
1406 false), /* pcrel_offset */
1407
d75bc93d
TS
1408 /* Section displacement, used by an associated event location section. */
1409 /* FIXME: Not handled correctly. */
1410 HOWTO (R_MIPS_SCN_DISP, /* type */
7403cb63
MM
1411 0, /* rightshift */
1412 2, /* size (0 = byte, 1 = short, 2 = long) */
1413 32, /* bitsize */
1414 false, /* pc_relative */
1415 0, /* bitpos */
1416 complain_overflow_dont, /* complain_on_overflow */
1417 bfd_elf_generic_reloc, /* special_function */
d75bc93d
TS
1418 "R_MIPS_SCN_DISP", /* name */
1419 false, /* partial_inplace */
1420 0, /* src_mask */
7403cb63
MM
1421 0xffffffff, /* dst_mask */
1422 false), /* pcrel_offset */
1423
d75bc93d
TS
1424 HOWTO (R_MIPS_REL16, /* type */
1425 0, /* rightshift */
1426 1, /* size (0 = byte, 1 = short, 2 = long) */
1427 16, /* bitsize */
1428 false, /* pc_relative */
1429 0, /* bitpos */
1430 complain_overflow_signed, /* complain_on_overflow */
1431 bfd_elf_generic_reloc, /* special_function */
1432 "R_MIPS_REL16", /* name */
1433 false, /* partial_inplace */
1434 0, /* src_mask */
1435 0xffff, /* dst_mask */
1436 false), /* pcrel_offset */
1437
1438 /* These two are obsolete. */
5f771d47
ILT
1439 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
1440 EMPTY_HOWTO (R_MIPS_PJUMP),
d75bc93d
TS
1441
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 */
1445 0, /* rightshift */
1446 2, /* size (0 = byte, 1 = short, 2 = long) */
1447 32, /* bitsize */
1448 false, /* pc_relative */
1449 0, /* bitpos */
1450 complain_overflow_dont, /* complain_on_overflow */
1451 bfd_elf_generic_reloc, /* special_function */
1452 "R_MIPS_RELGOT", /* name */
1453 false, /* partial_inplace */
1454 0, /* src_mask */
1455 0xffffffff, /* dst_mask */
1456 false), /* pcrel_offset */
d2905643 1457
be3ccd9c 1458 /* Protected jump conversion. This is an optimization hint. No
d2905643
MM
1459 relocation is required for correctness. */
1460 HOWTO (R_MIPS_JALR, /* type */
1461 0, /* rightshift */
d75bc93d
TS
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
1463 32, /* bitsize */
d2905643
MM
1464 false, /* pc_relative */
1465 0, /* bitpos */
1466 complain_overflow_dont, /* complain_on_overflow */
1467 bfd_elf_generic_reloc, /* special_function */
1468 "R_MIPS_JALR", /* name */
1469 false, /* partial_inplace */
d75bc93d
TS
1470 0, /* src_mask */
1471 0xffffffff, /* dst_mask */
d2905643 1472 false), /* pcrel_offset */
252b5132
RH
1473};
1474
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. */
1477static reloc_howto_type elf_mips_ctor64_howto =
1478 HOWTO (R_MIPS_64, /* type */
1479 0, /* rightshift */
1480 4, /* size (0 = byte, 1 = short, 2 = long) */
1481 32, /* bitsize */
1482 false, /* pc_relative */
1483 0, /* bitpos */
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 */
1491
1492/* The reloc used for the mips16 jump instruction. */
1493static reloc_howto_type elf_mips16_jump_howto =
1494 HOWTO (R_MIPS16_26, /* type */
1495 2, /* rightshift */
1496 2, /* size (0 = byte, 1 = short, 2 = long) */
1497 26, /* bitsize */
1498 false, /* pc_relative */
1499 0, /* bitpos */
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 */
1510
b7233c24 1511/* The reloc used for the mips16 gprel instruction. */
252b5132
RH
1512static reloc_howto_type elf_mips16_gprel_howto =
1513 HOWTO (R_MIPS16_GPREL, /* type */
1514 0, /* rightshift */
1515 2, /* size (0 = byte, 1 = short, 2 = long) */
1516 16, /* bitsize */
1517 false, /* pc_relative */
1518 0, /* bitpos */
1519 complain_overflow_signed, /* complain_on_overflow */
1520 mips16_gprel_reloc, /* special_function */
1521 "R_MIPS16_GPREL", /* name */
1522 true, /* partial_inplace */
b7233c24
MM
1523 0x07ff001f, /* src_mask */
1524 0x07ff001f, /* dst_mask */
252b5132
RH
1525 false); /* pcrel_offset */
1526
bb2d6cd7
GK
1527/* GNU extensions for embedded-pic. */
1528/* High 16 bits of symbol value, pc-relative. */
1529static reloc_howto_type elf_mips_gnu_rel_hi16 =
1530 HOWTO (R_MIPS_GNU_REL_HI16, /* type */
1531 0, /* rightshift */
1532 2, /* size (0 = byte, 1 = short, 2 = long) */
1533 16, /* bitsize */
1534 true, /* pc_relative */
1535 0, /* bitpos */
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 */
1543
1544/* Low 16 bits of symbol value, pc-relative. */
1545static reloc_howto_type elf_mips_gnu_rel_lo16 =
1546 HOWTO (R_MIPS_GNU_REL_LO16, /* type */
1547 0, /* rightshift */
1548 2, /* size (0 = byte, 1 = short, 2 = long) */
1549 16, /* bitsize */
1550 true, /* pc_relative */
1551 0, /* bitpos */
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 */
1559
1560/* 16 bit offset for pc-relative branches. */
1561static reloc_howto_type elf_mips_gnu_rel16_s2 =
1562 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1563 2, /* rightshift */
1564 2, /* size (0 = byte, 1 = short, 2 = long) */
1565 16, /* bitsize */
1566 true, /* pc_relative */
1567 0, /* bitpos */
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 */
1575
1576/* 64 bit pc-relative. */
1577static reloc_howto_type elf_mips_gnu_pcrel64 =
1578 HOWTO (R_MIPS_PC64, /* type */
1579 0, /* rightshift */
1580 4, /* size (0 = byte, 1 = short, 2 = long) */
1581 64, /* bitsize */
1582 true, /* pc_relative */
1583 0, /* bitpos */
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 */
1591
1592/* 32 bit pc-relative. */
1593static reloc_howto_type elf_mips_gnu_pcrel32 =
1594 HOWTO (R_MIPS_PC32, /* type */
1595 0, /* rightshift */
1596 2, /* size (0 = byte, 1 = short, 2 = long) */
1597 32, /* bitsize */
1598 true, /* pc_relative */
1599 0, /* bitpos */
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 */
1607
252b5132
RH
1608/* GNU extension to record C++ vtable hierarchy */
1609static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1610 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1611 0, /* rightshift */
1612 2, /* size (0 = byte, 1 = short, 2 = long) */
1613 0, /* bitsize */
1614 false, /* pc_relative */
1615 0, /* bitpos */
1616 complain_overflow_dont, /* complain_on_overflow */
1617 NULL, /* special_function */
1618 "R_MIPS_GNU_VTINHERIT", /* name */
1619 false, /* partial_inplace */
1620 0, /* src_mask */
1621 0, /* dst_mask */
1622 false); /* pcrel_offset */
1623
1624/* GNU extension to record C++ vtable member usage */
1625static reloc_howto_type elf_mips_gnu_vtentry_howto =
1626 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1627 0, /* rightshift */
1628 2, /* size (0 = byte, 1 = short, 2 = long) */
1629 0, /* bitsize */
1630 false, /* pc_relative */
1631 0, /* bitpos */
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 */
1636 0, /* src_mask */
1637 0, /* dst_mask */
1638 false); /* pcrel_offset */
1639
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
fcc76bea
CD
1643 actual relocation when we see the LO16.
1644
1645 MIPS ELF requires that the LO16 immediately follow the HI16. As a
1646 GNU extension, for non-pc-relative relocations, we permit an
252b5132
RH
1647 arbitrary number of HI16 relocs to be associated with a single LO16
1648 reloc. This extension permits gcc to output the HI and LO relocs
fcc76bea
CD
1649 itself.
1650
1651 This cannot be done for PC-relative relocations because both the HI16
1652 and LO16 parts of the relocations must be done relative to the LO16
1653 part, and there can be carry to or borrow from the HI16 part. */
252b5132 1654
38b1a46c
NC
1655struct mips_hi16
1656{
252b5132
RH
1657 struct mips_hi16 *next;
1658 bfd_byte *addr;
1659 bfd_vma addend;
1660};
1661
1662/* FIXME: This should not be a static variable. */
1663
1664static struct mips_hi16 *mips_hi16_list;
1665
1666bfd_reloc_status_type
1667_bfd_mips_elf_hi16_reloc (abfd,
1668 reloc_entry,
1669 symbol,
1670 data,
1671 input_section,
1672 output_bfd,
1673 error_message)
5f771d47 1674 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
1675 arelent *reloc_entry;
1676 asymbol *symbol;
1677 PTR data;
1678 asection *input_section;
1679 bfd *output_bfd;
1680 char **error_message;
1681{
1682 bfd_reloc_status_type ret;
1683 bfd_vma relocation;
1684 struct mips_hi16 *n;
1685
1686 /* If we're relocating, and this an external symbol, we don't want
1687 to change anything. */
1688 if (output_bfd != (bfd *) NULL
1689 && (symbol->flags & BSF_SECTION_SYM) == 0
1690 && reloc_entry->addend == 0)
1691 {
1692 reloc_entry->address += input_section->output_offset;
1693 return bfd_reloc_ok;
1694 }
1695
1696 ret = bfd_reloc_ok;
1697
1698 if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1699 {
1700 boolean relocateable;
1701 bfd_vma gp;
1702
1703 if (ret == bfd_reloc_undefined)
1704 abort ();
1705
1706 if (output_bfd != NULL)
1707 relocateable = true;
1708 else
1709 {
1710 relocateable = false;
1711 output_bfd = symbol->section->output_section->owner;
1712 }
1713
1714 ret = mips_elf_final_gp (output_bfd, symbol, relocateable,
1715 error_message, &gp);
1716 if (ret != bfd_reloc_ok)
1717 return ret;
1718
1719 relocation = gp - reloc_entry->address;
1720 }
1721 else
1722 {
1723 if (bfd_is_und_section (symbol->section)
1724 && output_bfd == (bfd *) NULL)
1725 ret = bfd_reloc_undefined;
1726
1727 if (bfd_is_com_section (symbol->section))
1728 relocation = 0;
1729 else
1730 relocation = symbol->value;
1731 }
1732
1733 relocation += symbol->section->output_section->vma;
1734 relocation += symbol->section->output_offset;
1735 relocation += reloc_entry->addend;
1736
1737 if (reloc_entry->address > input_section->_cooked_size)
1738 return bfd_reloc_outofrange;
1739
1740 /* Save the information, and let LO16 do the actual relocation. */
dc810e39 1741 n = (struct mips_hi16 *) bfd_malloc ((bfd_size_type) sizeof *n);
252b5132
RH
1742 if (n == NULL)
1743 return bfd_reloc_outofrange;
1744 n->addr = (bfd_byte *) data + reloc_entry->address;
1745 n->addend = relocation;
1746 n->next = mips_hi16_list;
1747 mips_hi16_list = n;
1748
1749 if (output_bfd != (bfd *) NULL)
1750 reloc_entry->address += input_section->output_offset;
1751
1752 return ret;
1753}
1754
1755/* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit
1756 inplace relocation; this function exists in order to do the
1757 R_MIPS_HI16 relocation described above. */
1758
1759bfd_reloc_status_type
1760_bfd_mips_elf_lo16_reloc (abfd,
1761 reloc_entry,
1762 symbol,
1763 data,
1764 input_section,
1765 output_bfd,
1766 error_message)
1767 bfd *abfd;
1768 arelent *reloc_entry;
1769 asymbol *symbol;
1770 PTR data;
1771 asection *input_section;
1772 bfd *output_bfd;
1773 char **error_message;
1774{
1775 arelent gp_disp_relent;
1776
1777 if (mips_hi16_list != NULL)
1778 {
1779 struct mips_hi16 *l;
1780
1781 l = mips_hi16_list;
1782 while (l != NULL)
1783 {
1784 unsigned long insn;
1785 unsigned long val;
1786 unsigned long vallo;
1787 struct mips_hi16 *next;
1788
1789 /* Do the HI16 relocation. Note that we actually don't need
1790 to know anything about the LO16 itself, except where to
1791 find the low 16 bits of the addend needed by the LO16. */
1792 insn = bfd_get_32 (abfd, l->addr);
3f0a7f7f
AM
1793 vallo = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
1794
1795 /* The low order 16 bits are always treated as a signed
1796 value. */
1797 vallo = ((vallo & 0xffff) ^ 0x8000) - 0x8000;
252b5132
RH
1798 val = ((insn & 0xffff) << 16) + vallo;
1799 val += l->addend;
1800
fcc76bea
CD
1801 /* If PC-relative, we need to subtract out the address of the LO
1802 half of the HI/LO. (The actual relocation is relative
1803 to that instruction.) */
1804 if (reloc_entry->howto->pc_relative)
1805 val -= reloc_entry->address;
1806
3f0a7f7f
AM
1807 /* At this point, "val" has the value of the combined HI/LO
1808 pair. If the low order 16 bits (which will be used for
1809 the LO16 insn) are negative, then we will need an
1810 adjustment for the high order 16 bits. */
1811 val += 0x8000;
1812 val = (val >> 16) & 0xffff;
1813
1814 insn &= ~ (bfd_vma) 0xffff;
1815 insn |= val;
dc810e39 1816 bfd_put_32 (abfd, (bfd_vma) insn, l->addr);
252b5132
RH
1817
1818 if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1819 {
1820 gp_disp_relent = *reloc_entry;
1821 reloc_entry = &gp_disp_relent;
1822 reloc_entry->addend = l->addend;
1823 }
1824
1825 next = l->next;
1826 free (l);
1827 l = next;
1828 }
1829
1830 mips_hi16_list = NULL;
1831 }
1832 else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0)
1833 {
1834 bfd_reloc_status_type ret;
1835 bfd_vma gp, relocation;
1836
1837 /* FIXME: Does this case ever occur? */
1838
1839 ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp);
1840 if (ret != bfd_reloc_ok)
1841 return ret;
1842
1843 relocation = gp - reloc_entry->address;
1844 relocation += symbol->section->output_section->vma;
1845 relocation += symbol->section->output_offset;
1846 relocation += reloc_entry->addend;
1847
1848 if (reloc_entry->address > input_section->_cooked_size)
1849 return bfd_reloc_outofrange;
1850
1851 gp_disp_relent = *reloc_entry;
1852 reloc_entry = &gp_disp_relent;
1853 reloc_entry->addend = relocation - 4;
1854 }
1855
1856 /* Now do the LO16 reloc in the usual way. */
1857 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1858 input_section, output_bfd, error_message);
1859}
1860
1861/* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset
1862 table used for PIC code. If the symbol is an external symbol, the
1863 instruction is modified to contain the offset of the appropriate
1864 entry in the global offset table. If the symbol is a section
1865 symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit
1866 addends are combined to form the real addend against the section
1867 symbol; the GOT16 is modified to contain the offset of an entry in
1868 the global offset table, and the LO16 is modified to offset it
1869 appropriately. Thus an offset larger than 16 bits requires a
1870 modified value in the global offset table.
1871
1872 This implementation suffices for the assembler, but the linker does
1873 not yet know how to create global offset tables. */
1874
1875bfd_reloc_status_type
1876_bfd_mips_elf_got16_reloc (abfd,
1877 reloc_entry,
1878 symbol,
1879 data,
1880 input_section,
1881 output_bfd,
1882 error_message)
1883 bfd *abfd;
1884 arelent *reloc_entry;
1885 asymbol *symbol;
1886 PTR data;
1887 asection *input_section;
1888 bfd *output_bfd;
1889 char **error_message;
1890{
1891 /* If we're relocating, and this an external symbol, we don't want
1892 to change anything. */
1893 if (output_bfd != (bfd *) NULL
1894 && (symbol->flags & BSF_SECTION_SYM) == 0
1895 && reloc_entry->addend == 0)
1896 {
1897 reloc_entry->address += input_section->output_offset;
1898 return bfd_reloc_ok;
1899 }
1900
1901 /* If we're relocating, and this is a local symbol, we can handle it
1902 just like HI16. */
1903 if (output_bfd != (bfd *) NULL
1904 && (symbol->flags & BSF_SECTION_SYM) != 0)
1905 return _bfd_mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data,
1906 input_section, output_bfd, error_message);
1907
1908 abort ();
1909}
1910
7403cb63
MM
1911/* Set the GP value for OUTPUT_BFD. Returns false if this is a
1912 dangerous relocation. */
1913
1914static boolean
1915mips_elf_assign_gp (output_bfd, pgp)
1916 bfd *output_bfd;
1917 bfd_vma *pgp;
1918{
1919 unsigned int count;
1920 asymbol **sym;
1921 unsigned int i;
1922
1923 /* If we've already figured out what GP will be, just return it. */
1924 *pgp = _bfd_get_gp_value (output_bfd);
1925 if (*pgp)
1926 return true;
1927
1928 count = bfd_get_symcount (output_bfd);
1929 sym = bfd_get_outsymbols (output_bfd);
1930
1931 /* The linker script will have created a symbol named `_gp' with the
1932 appropriate value. */
1933 if (sym == (asymbol **) NULL)
1934 i = count;
1935 else
1936 {
1937 for (i = 0; i < count; i++, sym++)
1938 {
dc810e39 1939 register const char *name;
7403cb63
MM
1940
1941 name = bfd_asymbol_name (*sym);
1942 if (*name == '_' && strcmp (name, "_gp") == 0)
1943 {
1944 *pgp = bfd_asymbol_value (*sym);
1945 _bfd_set_gp_value (output_bfd, *pgp);
1946 break;
1947 }
1948 }
1949 }
1950
1951 if (i >= count)
1952 {
1953 /* Only get the error once. */
1954 *pgp = 4;
1955 _bfd_set_gp_value (output_bfd, *pgp);
1956 return false;
1957 }
1958
1959 return true;
1960}
1961
252b5132
RH
1962/* We have to figure out the gp value, so that we can adjust the
1963 symbol value correctly. We look up the symbol _gp in the output
1964 BFD. If we can't find it, we're stuck. We cache it in the ELF
1965 target data. We don't need to adjust the symbol value for an
1966 external symbol if we are producing relocateable output. */
1967
1968static bfd_reloc_status_type
1969mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp)
1970 bfd *output_bfd;
1971 asymbol *symbol;
1972 boolean relocateable;
1973 char **error_message;
1974 bfd_vma *pgp;
1975{
1976 if (bfd_is_und_section (symbol->section)
1977 && ! relocateable)
1978 {
1979 *pgp = 0;
1980 return bfd_reloc_undefined;
1981 }
1982
1983 *pgp = _bfd_get_gp_value (output_bfd);
1984 if (*pgp == 0
1985 && (! relocateable
1986 || (symbol->flags & BSF_SECTION_SYM) != 0))
1987 {
1988 if (relocateable)
1989 {
1990 /* Make up a value. */
1991 *pgp = symbol->section->output_section->vma + 0x4000;
1992 _bfd_set_gp_value (output_bfd, *pgp);
1993 }
7403cb63 1994 else if (!mips_elf_assign_gp (output_bfd, pgp))
252b5132 1995 {
7403cb63
MM
1996 *error_message =
1997 (char *) _("GP relative relocation when _gp not defined");
1998 return bfd_reloc_dangerous;
252b5132
RH
1999 }
2000 }
2001
2002 return bfd_reloc_ok;
2003}
2004
2005/* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
2006 become the offset from the gp register. This function also handles
2007 R_MIPS_LITERAL relocations, although those can be handled more
2008 cleverly because the entries in the .lit8 and .lit4 sections can be
2009 merged. */
2010
2011static bfd_reloc_status_type gprel16_with_gp PARAMS ((bfd *, asymbol *,
2012 arelent *, asection *,
2013 boolean, PTR, bfd_vma));
2014
2015bfd_reloc_status_type
2016_bfd_mips_elf_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section,
2017 output_bfd, error_message)
2018 bfd *abfd;
2019 arelent *reloc_entry;
2020 asymbol *symbol;
2021 PTR data;
2022 asection *input_section;
2023 bfd *output_bfd;
2024 char **error_message;
2025{
2026 boolean relocateable;
2027 bfd_reloc_status_type ret;
2028 bfd_vma gp;
2029
2030 /* If we're relocating, and this is an external symbol with no
2031 addend, we don't want to change anything. We will only have an
2032 addend if this is a newly created reloc, not read from an ELF
2033 file. */
2034 if (output_bfd != (bfd *) NULL
2035 && (symbol->flags & BSF_SECTION_SYM) == 0
2036 && reloc_entry->addend == 0)
2037 {
2038 reloc_entry->address += input_section->output_offset;
2039 return bfd_reloc_ok;
2040 }
2041
2042 if (output_bfd != (bfd *) NULL)
2043 relocateable = true;
2044 else
2045 {
2046 relocateable = false;
2047 output_bfd = symbol->section->output_section->owner;
2048 }
2049
2050 ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message,
2051 &gp);
2052 if (ret != bfd_reloc_ok)
2053 return ret;
2054
2055 return gprel16_with_gp (abfd, symbol, reloc_entry, input_section,
2056 relocateable, data, gp);
2057}
2058
2059static bfd_reloc_status_type
2060gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data,
2061 gp)
2062 bfd *abfd;
2063 asymbol *symbol;
2064 arelent *reloc_entry;
2065 asection *input_section;
2066 boolean relocateable;
2067 PTR data;
2068 bfd_vma gp;
2069{
2070 bfd_vma relocation;
2071 unsigned long insn;
2072 unsigned long val;
2073
2074 if (bfd_is_com_section (symbol->section))
2075 relocation = 0;
2076 else
2077 relocation = symbol->value;
2078
2079 relocation += symbol->section->output_section->vma;
2080 relocation += symbol->section->output_offset;
2081
2082 if (reloc_entry->address > input_section->_cooked_size)
2083 return bfd_reloc_outofrange;
2084
2085 insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2086
2087 /* Set val to the offset into the section or symbol. */
2088 if (reloc_entry->howto->src_mask == 0)
2089 {
2090 /* This case occurs with the 64-bit MIPS ELF ABI. */
2091 val = reloc_entry->addend;
2092 }
2093 else
2094 {
2095 val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
2096 if (val & 0x8000)
2097 val -= 0x10000;
2098 }
2099
2100 /* Adjust val for the final section location and GP value. If we
2101 are producing relocateable output, we don't want to do this for
2102 an external symbol. */
2103 if (! relocateable
2104 || (symbol->flags & BSF_SECTION_SYM) != 0)
2105 val += relocation - gp;
2106
956cd1d6
TS
2107 insn = (insn & ~0xffff) | (val & 0xffff);
2108 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
252b5132
RH
2109
2110 if (relocateable)
2111 reloc_entry->address += input_section->output_offset;
2112
2113 /* Make sure it fit in 16 bits. */
43cbcf28 2114 if ((long) val >= 0x8000 || (long) val < -0x8000)
252b5132
RH
2115 return bfd_reloc_overflow;
2116
2117 return bfd_reloc_ok;
2118}
2119
2120/* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset
2121 from the gp register? XXX */
2122
2123static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *,
2124 arelent *, asection *,
2125 boolean, PTR, bfd_vma));
2126
2127bfd_reloc_status_type
2128_bfd_mips_elf_gprel32_reloc (abfd,
2129 reloc_entry,
2130 symbol,
2131 data,
2132 input_section,
2133 output_bfd,
2134 error_message)
2135 bfd *abfd;
2136 arelent *reloc_entry;
2137 asymbol *symbol;
2138 PTR data;
2139 asection *input_section;
2140 bfd *output_bfd;
2141 char **error_message;
2142{
2143 boolean relocateable;
2144 bfd_reloc_status_type ret;
2145 bfd_vma gp;
2146
2147 /* If we're relocating, and this is an external symbol with no
2148 addend, we don't want to change anything. We will only have an
2149 addend if this is a newly created reloc, not read from an ELF
2150 file. */
2151 if (output_bfd != (bfd *) NULL
2152 && (symbol->flags & BSF_SECTION_SYM) == 0
2153 && reloc_entry->addend == 0)
2154 {
2155 *error_message = (char *)
2156 _("32bits gp relative relocation occurs for an external symbol");
2157 return bfd_reloc_outofrange;
2158 }
2159
2160 if (output_bfd != (bfd *) NULL)
2161 {
2162 relocateable = true;
2163 gp = _bfd_get_gp_value (output_bfd);
2164 }
2165 else
2166 {
2167 relocateable = false;
2168 output_bfd = symbol->section->output_section->owner;
2169
2170 ret = mips_elf_final_gp (output_bfd, symbol, relocateable,
2171 error_message, &gp);
2172 if (ret != bfd_reloc_ok)
2173 return ret;
2174 }
2175
2176 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
2177 relocateable, data, gp);
2178}
2179
2180static bfd_reloc_status_type
2181gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data,
2182 gp)
2183 bfd *abfd;
2184 asymbol *symbol;
2185 arelent *reloc_entry;
2186 asection *input_section;
2187 boolean relocateable;
2188 PTR data;
2189 bfd_vma gp;
2190{
2191 bfd_vma relocation;
2192 unsigned long val;
2193
2194 if (bfd_is_com_section (symbol->section))
2195 relocation = 0;
2196 else
2197 relocation = symbol->value;
2198
2199 relocation += symbol->section->output_section->vma;
2200 relocation += symbol->section->output_offset;
2201
2202 if (reloc_entry->address > input_section->_cooked_size)
2203 return bfd_reloc_outofrange;
2204
2205 if (reloc_entry->howto->src_mask == 0)
2206 {
2207 /* This case arises with the 64-bit MIPS ELF ABI. */
2208 val = 0;
2209 }
2210 else
2211 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2212
2213 /* Set val to the offset into the section or symbol. */
2214 val += reloc_entry->addend;
2215
2216 /* Adjust val for the final section location and GP value. If we
2217 are producing relocateable output, we don't want to do this for
2218 an external symbol. */
2219 if (! relocateable
2220 || (symbol->flags & BSF_SECTION_SYM) != 0)
2221 val += relocation - gp;
2222
dc810e39 2223 bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + reloc_entry->address);
252b5132
RH
2224
2225 if (relocateable)
2226 reloc_entry->address += input_section->output_offset;
2227
2228 return bfd_reloc_ok;
2229}
2230
2231/* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
062e2358 2232 generated when addresses are 64 bits. The upper 32 bits are a simple
252b5132
RH
2233 sign extension. */
2234
2235static bfd_reloc_status_type
2236mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section,
2237 output_bfd, error_message)
2238 bfd *abfd;
2239 arelent *reloc_entry;
2240 asymbol *symbol;
2241 PTR data;
2242 asection *input_section;
2243 bfd *output_bfd;
2244 char **error_message;
2245{
2246 bfd_reloc_status_type r;
2247 arelent reloc32;
2248 unsigned long val;
2249 bfd_size_type addr;
2250
2251 r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2252 input_section, output_bfd, error_message);
2253 if (r != bfd_reloc_continue)
2254 return r;
2255
2256 /* Do a normal 32 bit relocation on the lower 32 bits. */
2257 reloc32 = *reloc_entry;
2258 if (bfd_big_endian (abfd))
2259 reloc32.address += 4;
d75bc93d 2260 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
252b5132
RH
2261 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
2262 output_bfd, error_message);
2263
2264 /* Sign extend into the upper 32 bits. */
2265 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
2266 if ((val & 0x80000000) != 0)
2267 val = 0xffffffff;
2268 else
2269 val = 0;
2270 addr = reloc_entry->address;
2271 if (bfd_little_endian (abfd))
2272 addr += 4;
dc810e39 2273 bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + addr);
252b5132
RH
2274
2275 return r;
2276}
2277
2278/* Handle a mips16 jump. */
2279
2280static bfd_reloc_status_type
2281mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section,
2282 output_bfd, error_message)
5f771d47 2283 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
2284 arelent *reloc_entry;
2285 asymbol *symbol;
5f771d47 2286 PTR data ATTRIBUTE_UNUSED;
252b5132
RH
2287 asection *input_section;
2288 bfd *output_bfd;
5f771d47 2289 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH
2290{
2291 if (output_bfd != (bfd *) NULL
2292 && (symbol->flags & BSF_SECTION_SYM) == 0
2293 && reloc_entry->addend == 0)
2294 {
2295 reloc_entry->address += input_section->output_offset;
2296 return bfd_reloc_ok;
2297 }
2298
2299 /* FIXME. */
2300 {
2301 static boolean warned;
2302
2303 if (! warned)
2304 (*_bfd_error_handler)
2305 (_("Linking mips16 objects into %s format is not supported"),
2306 bfd_get_target (input_section->output_section->owner));
2307 warned = true;
2308 }
2309
2310 return bfd_reloc_undefined;
2311}
2312
2313/* Handle a mips16 GP relative reloc. */
2314
2315static bfd_reloc_status_type
2316mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section,
2317 output_bfd, error_message)
2318 bfd *abfd;
2319 arelent *reloc_entry;
2320 asymbol *symbol;
2321 PTR data;
2322 asection *input_section;
2323 bfd *output_bfd;
2324 char **error_message;
2325{
2326 boolean relocateable;
2327 bfd_reloc_status_type ret;
2328 bfd_vma gp;
2329 unsigned short extend, insn;
2330 unsigned long final;
2331
2332 /* If we're relocating, and this is an external symbol with no
2333 addend, we don't want to change anything. We will only have an
2334 addend if this is a newly created reloc, not read from an ELF
2335 file. */
2336 if (output_bfd != NULL
2337 && (symbol->flags & BSF_SECTION_SYM) == 0
2338 && reloc_entry->addend == 0)
2339 {
2340 reloc_entry->address += input_section->output_offset;
2341 return bfd_reloc_ok;
2342 }
2343
2344 if (output_bfd != NULL)
2345 relocateable = true;
2346 else
2347 {
2348 relocateable = false;
2349 output_bfd = symbol->section->output_section->owner;
2350 }
2351
2352 ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message,
2353 &gp);
2354 if (ret != bfd_reloc_ok)
2355 return ret;
2356
2357 if (reloc_entry->address > input_section->_cooked_size)
2358 return bfd_reloc_outofrange;
2359
2360 /* Pick up the mips16 extend instruction and the real instruction. */
2361 extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address);
2362 insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2);
2363
2364 /* Stuff the current addend back as a 32 bit value, do the usual
2365 relocation, and then clean up. */
2366 bfd_put_32 (abfd,
dc810e39
AM
2367 (bfd_vma) (((extend & 0x1f) << 11)
2368 | (extend & 0x7e0)
2369 | (insn & 0x1f)),
252b5132
RH
2370 (bfd_byte *) data + reloc_entry->address);
2371
2372 ret = gprel16_with_gp (abfd, symbol, reloc_entry, input_section,
2373 relocateable, data, gp);
2374
2375 final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2376 bfd_put_16 (abfd,
dc810e39
AM
2377 (bfd_vma) ((extend & 0xf800)
2378 | ((final >> 11) & 0x1f)
2379 | (final & 0x7e0)),
252b5132
RH
2380 (bfd_byte *) data + reloc_entry->address);
2381 bfd_put_16 (abfd,
dc810e39
AM
2382 (bfd_vma) ((insn & 0xffe0)
2383 | (final & 0x1f)),
252b5132
RH
2384 (bfd_byte *) data + reloc_entry->address + 2);
2385
2386 return ret;
2387}
2388
2389/* Return the ISA for a MIPS e_flags value. */
2390
2391static INLINE int
2392elf_mips_isa (flags)
2393 flagword flags;
2394{
2395 switch (flags & EF_MIPS_ARCH)
2396 {
2397 case E_MIPS_ARCH_1:
2398 return 1;
2399 case E_MIPS_ARCH_2:
2400 return 2;
2401 case E_MIPS_ARCH_3:
2402 return 3;
2403 case E_MIPS_ARCH_4:
2404 return 4;
84ea6cf2
NC
2405 case E_MIPS_ARCH_5:
2406 return 5;
e7af610e
NC
2407 case E_MIPS_ARCH_32:
2408 return 32;
84ea6cf2
NC
2409 case E_MIPS_ARCH_64:
2410 return 64;
252b5132
RH
2411 }
2412 return 4;
2413}
2414
2415/* Return the MACH for a MIPS e_flags value. */
2416
dc810e39 2417static INLINE unsigned long
252b5132
RH
2418elf_mips_mach (flags)
2419 flagword flags;
2420{
2421 switch (flags & EF_MIPS_MACH)
2422 {
2423 case E_MIPS_MACH_3900:
2424 return bfd_mach_mips3900;
2425
2426 case E_MIPS_MACH_4010:
2427 return bfd_mach_mips4010;
2428
2429 case E_MIPS_MACH_4100:
2430 return bfd_mach_mips4100;
2431
2432 case E_MIPS_MACH_4111:
2433 return bfd_mach_mips4111;
2434
2435 case E_MIPS_MACH_4650:
2436 return bfd_mach_mips4650;
2437
c6c98b38
NC
2438 case E_MIPS_MACH_SB1:
2439 return bfd_mach_mips_sb1;
2440
252b5132
RH
2441 default:
2442 switch (flags & EF_MIPS_ARCH)
2443 {
2444 default:
2445 case E_MIPS_ARCH_1:
2446 return bfd_mach_mips3000;
2447 break;
2448
2449 case E_MIPS_ARCH_2:
2450 return bfd_mach_mips6000;
2451 break;
2452
2453 case E_MIPS_ARCH_3:
2454 return bfd_mach_mips4000;
2455 break;
2456
2457 case E_MIPS_ARCH_4:
2458 return bfd_mach_mips8000;
2459 break;
e7af610e 2460
84ea6cf2
NC
2461 case E_MIPS_ARCH_5:
2462 return bfd_mach_mips5;
2463 break;
2464
e7af610e 2465 case E_MIPS_ARCH_32:
a1cd6a8f 2466 return bfd_mach_mipsisa32;
e7af610e 2467 break;
84ea6cf2
NC
2468
2469 case E_MIPS_ARCH_64:
a1cd6a8f 2470 return bfd_mach_mipsisa64;
84ea6cf2 2471 break;
252b5132
RH
2472 }
2473 }
2474
2475 return 0;
2476}
2477
be3ccd9c 2478/* Return printable name for ABI. */
252b5132 2479
be3ccd9c 2480static INLINE char *
103186c6
MM
2481elf_mips_abi_name (abfd)
2482 bfd *abfd;
252b5132 2483{
103186c6
MM
2484 flagword flags;
2485
103186c6 2486 flags = elf_elfheader (abfd)->e_flags;
252b5132
RH
2487 switch (flags & EF_MIPS_ABI)
2488 {
2489 case 0:
aee61b13
TS
2490 if (ABI_N32_P (abfd))
2491 return "N32";
2492 else if (ABI_64_P (abfd))
2493 return "64";
2494 else
2495 return "none";
252b5132
RH
2496 case E_MIPS_ABI_O32:
2497 return "O32";
2498 case E_MIPS_ABI_O64:
2499 return "O64";
2500 case E_MIPS_ABI_EABI32:
2501 return "EABI32";
2502 case E_MIPS_ABI_EABI64:
2503 return "EABI64";
2504 default:
2505 return "unknown abi";
2506 }
2507}
2508
2509/* A mapping from BFD reloc types to MIPS ELF reloc types. */
2510
2511struct elf_reloc_map {
2512 bfd_reloc_code_real_type bfd_reloc_val;
2513 enum elf_mips_reloc_type elf_reloc_val;
2514};
2515
dc810e39 2516static const struct elf_reloc_map mips_reloc_map[] =
38b1a46c 2517{
252b5132
RH
2518 { BFD_RELOC_NONE, R_MIPS_NONE, },
2519 { BFD_RELOC_16, R_MIPS_16 },
2520 { BFD_RELOC_32, R_MIPS_32 },
2521 { BFD_RELOC_64, R_MIPS_64 },
2522 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
2523 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
2524 { BFD_RELOC_LO16, R_MIPS_LO16 },
cdf6fd85 2525 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
252b5132
RH
2526 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
2527 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
2528 { BFD_RELOC_16_PCREL, R_MIPS_PC16 },
2529 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
cdf6fd85 2530 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
252b5132
RH
2531 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
2532 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
2533 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
3f830999
MM
2534 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
2535 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
2536 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
2537 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
2538 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }
252b5132
RH
2539};
2540
2541/* Given a BFD reloc type, return a howto structure. */
2542
2543static reloc_howto_type *
2544bfd_elf32_bfd_reloc_type_lookup (abfd, code)
2545 bfd *abfd;
2546 bfd_reloc_code_real_type code;
2547{
2548 unsigned int i;
2549
2550 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++)
2551 {
2552 if (mips_reloc_map[i].bfd_reloc_val == code)
d75bc93d 2553 return &elf_mips_howto_table_rel[(int) mips_reloc_map[i].elf_reloc_val];
252b5132
RH
2554 }
2555
2556 switch (code)
2557 {
2558 default:
2559 bfd_set_error (bfd_error_bad_value);
2560 return NULL;
2561
2562 case BFD_RELOC_CTOR:
2563 /* We need to handle BFD_RELOC_CTOR specially.
2564 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2565 size of addresses on this architecture. */
2566 if (bfd_arch_bits_per_address (abfd) == 32)
d75bc93d 2567 return &elf_mips_howto_table_rel[(int) R_MIPS_32];
252b5132
RH
2568 else
2569 return &elf_mips_ctor64_howto;
2570
2571 case BFD_RELOC_MIPS16_JMP:
2572 return &elf_mips16_jump_howto;
2573 case BFD_RELOC_MIPS16_GPREL:
2574 return &elf_mips16_gprel_howto;
2575 case BFD_RELOC_VTABLE_INHERIT:
2576 return &elf_mips_gnu_vtinherit_howto;
2577 case BFD_RELOC_VTABLE_ENTRY:
2578 return &elf_mips_gnu_vtentry_howto;
bb2d6cd7
GK
2579 case BFD_RELOC_PCREL_HI16_S:
2580 return &elf_mips_gnu_rel_hi16;
2581 case BFD_RELOC_PCREL_LO16:
2582 return &elf_mips_gnu_rel_lo16;
2583 case BFD_RELOC_16_PCREL_S2:
2584 return &elf_mips_gnu_rel16_s2;
2585 case BFD_RELOC_64_PCREL:
2586 return &elf_mips_gnu_pcrel64;
2587 case BFD_RELOC_32_PCREL:
2588 return &elf_mips_gnu_pcrel32;
252b5132
RH
2589 }
2590}
2591
3f830999 2592/* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
252b5132 2593
c9b3cbf3
RH
2594static reloc_howto_type *
2595mips_rtype_to_howto (r_type)
2596 unsigned int r_type;
252b5132 2597{
252b5132
RH
2598 switch (r_type)
2599 {
2600 case R_MIPS16_26:
c9b3cbf3 2601 return &elf_mips16_jump_howto;
252b5132
RH
2602 break;
2603 case R_MIPS16_GPREL:
c9b3cbf3 2604 return &elf_mips16_gprel_howto;
252b5132
RH
2605 break;
2606 case R_MIPS_GNU_VTINHERIT:
c9b3cbf3 2607 return &elf_mips_gnu_vtinherit_howto;
252b5132
RH
2608 break;
2609 case R_MIPS_GNU_VTENTRY:
c9b3cbf3 2610 return &elf_mips_gnu_vtentry_howto;
252b5132 2611 break;
bb2d6cd7
GK
2612 case R_MIPS_GNU_REL_HI16:
2613 return &elf_mips_gnu_rel_hi16;
2614 break;
2615 case R_MIPS_GNU_REL_LO16:
2616 return &elf_mips_gnu_rel_lo16;
2617 break;
2618 case R_MIPS_GNU_REL16_S2:
2619 return &elf_mips_gnu_rel16_s2;
2620 break;
2621 case R_MIPS_PC64:
2622 return &elf_mips_gnu_pcrel64;
2623 break;
2624 case R_MIPS_PC32:
2625 return &elf_mips_gnu_pcrel32;
2626 break;
252b5132
RH
2627
2628 default:
2629 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
d75bc93d 2630 return &elf_mips_howto_table_rel[r_type];
252b5132
RH
2631 break;
2632 }
c9b3cbf3
RH
2633}
2634
2635/* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
2636
2637static void
2638mips_info_to_howto_rel (abfd, cache_ptr, dst)
2639 bfd *abfd;
2640 arelent *cache_ptr;
2641 Elf32_Internal_Rel *dst;
2642{
2643 unsigned int r_type;
2644
2645 r_type = ELF32_R_TYPE (dst->r_info);
2646 cache_ptr->howto = mips_rtype_to_howto (r_type);
252b5132
RH
2647
2648 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2649 value for the object file. We get the addend now, rather than
2650 when we do the relocation, because the symbol manipulations done
2651 by the linker may cause us to lose track of the input BFD. */
2652 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
2653 && (r_type == (unsigned int) R_MIPS_GPREL16
2654 || r_type == (unsigned int) R_MIPS_LITERAL))
2655 cache_ptr->addend = elf_gp (abfd);
2656}
3f830999
MM
2657
2658/* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */
2659
2660static void
2661mips_info_to_howto_rela (abfd, cache_ptr, dst)
2662 bfd *abfd;
2663 arelent *cache_ptr;
2664 Elf32_Internal_Rela *dst;
2665{
2666 /* Since an Elf32_Internal_Rel is an initial prefix of an
2667 Elf32_Internal_Rela, we can just use mips_info_to_howto_rel
2668 above. */
2669 mips_info_to_howto_rel (abfd, cache_ptr, (Elf32_Internal_Rel *) dst);
2670
2671 /* If we ever need to do any extra processing with dst->r_addend
2672 (the field omitted in an Elf32_Internal_Rel) we can do it here. */
2673}
252b5132
RH
2674\f
2675/* A .reginfo section holds a single Elf32_RegInfo structure. These
2676 routines swap this structure in and out. They are used outside of
2677 BFD, so they are globally visible. */
2678
2679void
2680bfd_mips_elf32_swap_reginfo_in (abfd, ex, in)
2681 bfd *abfd;
2682 const Elf32_External_RegInfo *ex;
2683 Elf32_RegInfo *in;
2684{
dc810e39
AM
2685 in->ri_gprmask = H_GET_32 (abfd, ex->ri_gprmask);
2686 in->ri_cprmask[0] = H_GET_32 (abfd, ex->ri_cprmask[0]);
2687 in->ri_cprmask[1] = H_GET_32 (abfd, ex->ri_cprmask[1]);
2688 in->ri_cprmask[2] = H_GET_32 (abfd, ex->ri_cprmask[2]);
2689 in->ri_cprmask[3] = H_GET_32 (abfd, ex->ri_cprmask[3]);
2690 in->ri_gp_value = H_GET_32 (abfd, ex->ri_gp_value);
252b5132
RH
2691}
2692
2693void
2694bfd_mips_elf32_swap_reginfo_out (abfd, in, ex)
2695 bfd *abfd;
2696 const Elf32_RegInfo *in;
2697 Elf32_External_RegInfo *ex;
2698{
dc810e39
AM
2699 H_PUT_32 (abfd, in->ri_gprmask, ex->ri_gprmask);
2700 H_PUT_32 (abfd, in->ri_cprmask[0], ex->ri_cprmask[0]);
2701 H_PUT_32 (abfd, in->ri_cprmask[1], ex->ri_cprmask[1]);
2702 H_PUT_32 (abfd, in->ri_cprmask[2], ex->ri_cprmask[2]);
2703 H_PUT_32 (abfd, in->ri_cprmask[3], ex->ri_cprmask[3]);
2704 H_PUT_32 (abfd, in->ri_gp_value, ex->ri_gp_value);
252b5132
RH
2705}
2706
2707/* In the 64 bit ABI, the .MIPS.options section holds register
2708 information in an Elf64_Reginfo structure. These routines swap
2709 them in and out. They are globally visible because they are used
2710 outside of BFD. These routines are here so that gas can call them
2711 without worrying about whether the 64 bit ABI has been included. */
2712
2713void
2714bfd_mips_elf64_swap_reginfo_in (abfd, ex, in)
2715 bfd *abfd;
2716 const Elf64_External_RegInfo *ex;
2717 Elf64_Internal_RegInfo *in;
2718{
dc810e39
AM
2719 in->ri_gprmask = H_GET_32 (abfd, ex->ri_gprmask);
2720 in->ri_pad = H_GET_32 (abfd, ex->ri_pad);
2721 in->ri_cprmask[0] = H_GET_32 (abfd, ex->ri_cprmask[0]);
2722 in->ri_cprmask[1] = H_GET_32 (abfd, ex->ri_cprmask[1]);
2723 in->ri_cprmask[2] = H_GET_32 (abfd, ex->ri_cprmask[2]);
2724 in->ri_cprmask[3] = H_GET_32 (abfd, ex->ri_cprmask[3]);
2725 in->ri_gp_value = H_GET_64 (abfd, ex->ri_gp_value);
252b5132
RH
2726}
2727
2728void
2729bfd_mips_elf64_swap_reginfo_out (abfd, in, ex)
2730 bfd *abfd;
2731 const Elf64_Internal_RegInfo *in;
2732 Elf64_External_RegInfo *ex;
2733{
dc810e39
AM
2734 H_PUT_32 (abfd, in->ri_gprmask, ex->ri_gprmask);
2735 H_PUT_32 (abfd, in->ri_pad, ex->ri_pad);
2736 H_PUT_32 (abfd, in->ri_cprmask[0], ex->ri_cprmask[0]);
2737 H_PUT_32 (abfd, in->ri_cprmask[1], ex->ri_cprmask[1]);
2738 H_PUT_32 (abfd, in->ri_cprmask[2], ex->ri_cprmask[2]);
2739 H_PUT_32 (abfd, in->ri_cprmask[3], ex->ri_cprmask[3]);
2740 H_PUT_64 (abfd, in->ri_gp_value, ex->ri_gp_value);
252b5132
RH
2741}
2742
2743/* Swap an entry in a .gptab section. Note that these routines rely
2744 on the equivalence of the two elements of the union. */
2745
2746static void
2747bfd_mips_elf32_swap_gptab_in (abfd, ex, in)
2748 bfd *abfd;
2749 const Elf32_External_gptab *ex;
2750 Elf32_gptab *in;
2751{
dc810e39
AM
2752 in->gt_entry.gt_g_value = H_GET_32 (abfd, ex->gt_entry.gt_g_value);
2753 in->gt_entry.gt_bytes = H_GET_32 (abfd, ex->gt_entry.gt_bytes);
252b5132
RH
2754}
2755
2756static void
2757bfd_mips_elf32_swap_gptab_out (abfd, in, ex)
2758 bfd *abfd;
2759 const Elf32_gptab *in;
2760 Elf32_External_gptab *ex;
2761{
dc810e39
AM
2762 H_PUT_32 (abfd, in->gt_entry.gt_g_value, ex->gt_entry.gt_g_value);
2763 H_PUT_32 (abfd, in->gt_entry.gt_bytes, ex->gt_entry.gt_bytes);
252b5132
RH
2764}
2765
2766static void
2767bfd_elf32_swap_compact_rel_out (abfd, in, ex)
2768 bfd *abfd;
2769 const Elf32_compact_rel *in;
2770 Elf32_External_compact_rel *ex;
2771{
dc810e39
AM
2772 H_PUT_32 (abfd, in->id1, ex->id1);
2773 H_PUT_32 (abfd, in->num, ex->num);
2774 H_PUT_32 (abfd, in->id2, ex->id2);
2775 H_PUT_32 (abfd, in->offset, ex->offset);
2776 H_PUT_32 (abfd, in->reserved0, ex->reserved0);
2777 H_PUT_32 (abfd, in->reserved1, ex->reserved1);
252b5132
RH
2778}
2779
2780static void
2781bfd_elf32_swap_crinfo_out (abfd, in, ex)
2782 bfd *abfd;
2783 const Elf32_crinfo *in;
2784 Elf32_External_crinfo *ex;
2785{
2786 unsigned long l;
2787
2788 l = (((in->ctype & CRINFO_CTYPE) << CRINFO_CTYPE_SH)
2789 | ((in->rtype & CRINFO_RTYPE) << CRINFO_RTYPE_SH)
2790 | ((in->dist2to & CRINFO_DIST2TO) << CRINFO_DIST2TO_SH)
2791 | ((in->relvaddr & CRINFO_RELVADDR) << CRINFO_RELVADDR_SH));
dc810e39
AM
2792 H_PUT_32 (abfd, l, ex->info);
2793 H_PUT_32 (abfd, in->konst, ex->konst);
2794 H_PUT_32 (abfd, in->vaddr, ex->vaddr);
252b5132
RH
2795}
2796
2797/* Swap in an options header. */
2798
2799void
2800bfd_mips_elf_swap_options_in (abfd, ex, in)
2801 bfd *abfd;
2802 const Elf_External_Options *ex;
2803 Elf_Internal_Options *in;
2804{
dc810e39
AM
2805 in->kind = H_GET_8 (abfd, ex->kind);
2806 in->size = H_GET_8 (abfd, ex->size);
2807 in->section = H_GET_16 (abfd, ex->section);
2808 in->info = H_GET_32 (abfd, ex->info);
252b5132
RH
2809}
2810
2811/* Swap out an options header. */
2812
2813void
2814bfd_mips_elf_swap_options_out (abfd, in, ex)
2815 bfd *abfd;
2816 const Elf_Internal_Options *in;
2817 Elf_External_Options *ex;
2818{
dc810e39
AM
2819 H_PUT_8 (abfd, in->kind, ex->kind);
2820 H_PUT_8 (abfd, in->size, ex->size);
2821 H_PUT_16 (abfd, in->section, ex->section);
2822 H_PUT_32 (abfd, in->info, ex->info);
252b5132 2823}
86033394 2824#if 0
c6142e5d
MM
2825/* Swap in an MSYM entry. */
2826
2827static void
2828bfd_mips_elf_swap_msym_in (abfd, ex, in)
2829 bfd *abfd;
2830 const Elf32_External_Msym *ex;
2831 Elf32_Internal_Msym *in;
2832{
dc810e39
AM
2833 in->ms_hash_value = H_GET_32 (abfd, ex->ms_hash_value);
2834 in->ms_info = H_GET_32 (abfd, ex->ms_info);
c6142e5d 2835}
86033394 2836#endif
c6142e5d
MM
2837/* Swap out an MSYM entry. */
2838
2839static void
2840bfd_mips_elf_swap_msym_out (abfd, in, ex)
2841 bfd *abfd;
2842 const Elf32_Internal_Msym *in;
2843 Elf32_External_Msym *ex;
2844{
dc810e39
AM
2845 H_PUT_32 (abfd, in->ms_hash_value, ex->ms_hash_value);
2846 H_PUT_32 (abfd, in->ms_info, ex->ms_info);
c6142e5d 2847}
252b5132
RH
2848\f
2849/* Determine whether a symbol is global for the purposes of splitting
2850 the symbol table into global symbols and local symbols. At least
2851 on Irix 5, this split must be between section symbols and all other
2852 symbols. On most ELF targets the split is between static symbols
2853 and externally visible symbols. */
2854
252b5132
RH
2855static boolean
2856mips_elf_sym_is_global (abfd, sym)
5f771d47 2857 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
2858 asymbol *sym;
2859{
936e320b
AM
2860 if (SGI_COMPAT (abfd))
2861 return (sym->flags & BSF_SECTION_SYM) == 0;
fdbafa10
L
2862 else
2863 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
936e320b
AM
2864 || bfd_is_und_section (bfd_get_section (sym))
2865 || bfd_is_com_section (bfd_get_section (sym)));
252b5132
RH
2866}
2867\f
2868/* Set the right machine number for a MIPS ELF file. This is used for
2869 both the 32-bit and the 64-bit ABI. */
2870
2871boolean
2872_bfd_mips_elf_object_p (abfd)
2873 bfd *abfd;
2874{
d75bc93d 2875 /* Irix 5 and 6 are broken. Object file symbol tables are not always
252b5132
RH
2876 sorted correctly such that local symbols precede global symbols,
2877 and the sh_info field in the symbol table is not always right. */
c36e006f
L
2878 if (SGI_COMPAT(abfd))
2879 elf_bad_symtab (abfd) = true;
252b5132 2880
103186c6
MM
2881 bfd_default_set_arch_mach (abfd, bfd_arch_mips,
2882 elf_mips_mach (elf_elfheader (abfd)->e_flags));
2883 return true;
252b5132
RH
2884}
2885
2886/* The final processing done just before writing out a MIPS ELF object
2887 file. This gets the MIPS architecture right based on the machine
2888 number. This is used by both the 32-bit and the 64-bit ABI. */
2889
252b5132
RH
2890void
2891_bfd_mips_elf_final_write_processing (abfd, linker)
2892 bfd *abfd;
5f771d47 2893 boolean linker ATTRIBUTE_UNUSED;
252b5132
RH
2894{
2895 unsigned long val;
2896 unsigned int i;
2897 Elf_Internal_Shdr **hdrpp;
2898 const char *name;
2899 asection *sec;
2900
2901 switch (bfd_get_mach (abfd))
2902 {
2903 default:
2904 case bfd_mach_mips3000:
2905 val = E_MIPS_ARCH_1;
2906 break;
2907
2908 case bfd_mach_mips3900:
2909 val = E_MIPS_ARCH_1 | E_MIPS_MACH_3900;
2910 break;
2911
2912 case bfd_mach_mips6000:
2913 val = E_MIPS_ARCH_2;
2914 break;
2915
2916 case bfd_mach_mips4000:
2917 case bfd_mach_mips4300:
5e7079af
L
2918 case bfd_mach_mips4400:
2919 case bfd_mach_mips4600:
252b5132
RH
2920 val = E_MIPS_ARCH_3;
2921 break;
2922
2923 case bfd_mach_mips4010:
2924 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4010;
2925 break;
2926
2927 case bfd_mach_mips4100:
2928 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100;
2929 break;
2930
2931 case bfd_mach_mips4111:
2932 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4111;
2933 break;
2934
2935 case bfd_mach_mips4650:
2936 val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650;
2937 break;
2938
5e7079af 2939 case bfd_mach_mips5000:
252b5132 2940 case bfd_mach_mips8000:
d1cf510e
NC
2941 case bfd_mach_mips10000:
2942 case bfd_mach_mips12000:
252b5132
RH
2943 val = E_MIPS_ARCH_4;
2944 break;
156c2f8b 2945
84ea6cf2
NC
2946 case bfd_mach_mips5:
2947 val = E_MIPS_ARCH_5;
2948 break;
2949
c6c98b38
NC
2950 case bfd_mach_mips_sb1:
2951 val = E_MIPS_ARCH_64 | E_MIPS_MACH_SB1;
2952 break;
a1cd6a8f
EC
2953
2954 case bfd_mach_mipsisa32:
2955 val = E_MIPS_ARCH_32;
2956 break;
2957
2958 case bfd_mach_mipsisa64:
2959 val = E_MIPS_ARCH_64;
252b5132
RH
2960 }
2961
be3ccd9c 2962 elf_elfheader (abfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
252b5132
RH
2963 elf_elfheader (abfd)->e_flags |= val;
2964
2965 /* Set the sh_info field for .gptab sections and other appropriate
2966 info for each special section. */
2967 for (i = 1, hdrpp = elf_elfsections (abfd) + 1;
9ad5cbcf 2968 i < elf_numsections (abfd);
252b5132
RH
2969 i++, hdrpp++)
2970 {
2971 switch ((*hdrpp)->sh_type)
2972 {
c6142e5d 2973 case SHT_MIPS_MSYM:
252b5132
RH
2974 case SHT_MIPS_LIBLIST:
2975 sec = bfd_get_section_by_name (abfd, ".dynstr");
2976 if (sec != NULL)
2977 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
2978 break;
2979
2980 case SHT_MIPS_GPTAB:
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, ".gptab.", sizeof ".gptab." - 1) == 0);
2985 sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1);
2986 BFD_ASSERT (sec != NULL);
2987 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
2988 break;
2989
2990 case SHT_MIPS_CONTENT:
2991 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
2992 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
2993 BFD_ASSERT (name != NULL
2994 && strncmp (name, ".MIPS.content",
2995 sizeof ".MIPS.content" - 1) == 0);
2996 sec = bfd_get_section_by_name (abfd,
2997 name + sizeof ".MIPS.content" - 1);
2998 BFD_ASSERT (sec != NULL);
3f830999 2999 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
252b5132
RH
3000 break;
3001
3002 case SHT_MIPS_SYMBOL_LIB:
3003 sec = bfd_get_section_by_name (abfd, ".dynsym");
3004 if (sec != NULL)
3005 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
3006 sec = bfd_get_section_by_name (abfd, ".liblist");
3007 if (sec != NULL)
3008 (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
3009 break;
3010
3011 case SHT_MIPS_EVENTS:
3012 BFD_ASSERT ((*hdrpp)->bfd_section != NULL);
3013 name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section);
3014 BFD_ASSERT (name != NULL);
3015 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0)
3016 sec = bfd_get_section_by_name (abfd,
3017 name + sizeof ".MIPS.events" - 1);
3018 else
3019 {
3020 BFD_ASSERT (strncmp (name, ".MIPS.post_rel",
3021 sizeof ".MIPS.post_rel" - 1) == 0);
3022 sec = bfd_get_section_by_name (abfd,
3023 (name
3024 + sizeof ".MIPS.post_rel" - 1));
3025 }
3026 BFD_ASSERT (sec != NULL);
3027 (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
3028 break;
3029
3030 }
3031 }
3032}
3033\f
be3ccd9c 3034/* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */
252b5132
RH
3035
3036boolean
3037_bfd_mips_elf_set_private_flags (abfd, flags)
3038 bfd *abfd;
3039 flagword flags;
3040{
3041 BFD_ASSERT (!elf_flags_init (abfd)
3042 || elf_elfheader (abfd)->e_flags == flags);
3043
3044 elf_elfheader (abfd)->e_flags = flags;
3045 elf_flags_init (abfd) = true;
3046 return true;
3047}
3048
252b5132
RH
3049/* Merge backend specific data from an object file to the output
3050 object file when linking. */
3051
3052boolean
3053_bfd_mips_elf_merge_private_bfd_data (ibfd, obfd)
3054 bfd *ibfd;
3055 bfd *obfd;
3056{
3057 flagword old_flags;
3058 flagword new_flags;
3059 boolean ok;
a9922e52
UC
3060 boolean null_input_bfd = true;
3061 asection *sec;
252b5132
RH
3062
3063 /* Check if we have the same endianess */
1fe494a5
NC
3064 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
3065 return false;
252b5132
RH
3066
3067 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3068 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3069 return true;
3070
3071 new_flags = elf_elfheader (ibfd)->e_flags;
3072 elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
3073 old_flags = elf_elfheader (obfd)->e_flags;
3074
3075 if (! elf_flags_init (obfd))
3076 {
3077 elf_flags_init (obfd) = true;
3078 elf_elfheader (obfd)->e_flags = new_flags;
be3ccd9c 3079 elf_elfheader (obfd)->e_ident[EI_CLASS]
103186c6 3080 = elf_elfheader (ibfd)->e_ident[EI_CLASS];
252b5132
RH
3081
3082 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3083 && bfd_get_arch_info (obfd)->the_default)
3084 {
3085 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3086 bfd_get_mach (ibfd)))
3087 return false;
3088 }
3089
3090 return true;
3091 }
3092
3093 /* Check flag compatibility. */
3094
3095 new_flags &= ~EF_MIPS_NOREORDER;
3096 old_flags &= ~EF_MIPS_NOREORDER;
3097
3098 if (new_flags == old_flags)
3099 return true;
3100
a9922e52
UC
3101 /* Check to see if the input BFD actually contains any sections.
3102 If not, its flags may not have been initialised either, but it cannot
3103 actually cause any incompatibility. */
3104 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
3105 {
3106 /* Ignore synthetic sections and empty .text, .data and .bss sections
3107 which are automatically generated by gas. */
3108 if (strcmp (sec->name, ".reginfo")
3109 && strcmp (sec->name, ".mdebug")
3110 && ((!strcmp (sec->name, ".text")
3111 || !strcmp (sec->name, ".data")
3112 || !strcmp (sec->name, ".bss"))
3113 && sec->_raw_size != 0))
3114 {
3115 null_input_bfd = false;
3116 break;
3117 }
3118 }
3119 if (null_input_bfd)
3120 return true;
3121
252b5132
RH
3122 ok = true;
3123
3124 if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC))
3125 {
3126 new_flags &= ~EF_MIPS_PIC;
3127 old_flags &= ~EF_MIPS_PIC;
3128 (*_bfd_error_handler)
3129 (_("%s: linking PIC files with non-PIC files"),
8f615d07 3130 bfd_archive_filename (ibfd));
252b5132
RH
3131 ok = false;
3132 }
3133
3134 if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC))
3135 {
3136 new_flags &= ~EF_MIPS_CPIC;
3137 old_flags &= ~EF_MIPS_CPIC;
3138 (*_bfd_error_handler)
3139 (_("%s: linking abicalls files with non-abicalls files"),
8f615d07 3140 bfd_archive_filename (ibfd));
252b5132
RH
3141 ok = false;
3142 }
3143
be3ccd9c 3144 /* Compare the ISA's. */
252b5132
RH
3145 if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))
3146 != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)))
3147 {
3148 int new_mach = new_flags & EF_MIPS_MACH;
3149 int old_mach = old_flags & EF_MIPS_MACH;
3150 int new_isa = elf_mips_isa (new_flags);
3151 int old_isa = elf_mips_isa (old_flags);
3152
3153 /* If either has no machine specified, just compare the general isa's.
be3ccd9c
KH
3154 Some combinations of machines are ok, if the isa's match. */
3155 if (! new_mach
252b5132
RH
3156 || ! old_mach
3157 || new_mach == old_mach
3158 )
3159 {
e7af610e
NC
3160 /* Don't warn about mixing code using 32-bit ISAs, or mixing code
3161 using 64-bit ISAs. They will normally use the same data sizes
3162 and calling conventions. */
252b5132 3163
e7af610e
NC
3164 if (( (new_isa == 1 || new_isa == 2 || new_isa == 32)
3165 ^ (old_isa == 1 || old_isa == 2 || old_isa == 32)) != 0)
252b5132
RH
3166 {
3167 (*_bfd_error_handler)
3168 (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"),
8f615d07 3169 bfd_archive_filename (ibfd), new_isa, old_isa);
252b5132
RH
3170 ok = false;
3171 }
259d18a3
L
3172 else
3173 {
3174 /* Do we need to update the mach field? */
3175 if (old_mach == 0 && new_mach != 0)
3176 elf_elfheader (obfd)->e_flags |= new_mach;
3177
3178 /* Do we need to update the ISA field? */
3179 if (new_isa > old_isa)
3180 {
3181 elf_elfheader (obfd)->e_flags &= ~EF_MIPS_ARCH;
3182 elf_elfheader (obfd)->e_flags
3183 |= new_flags & EF_MIPS_ARCH;
3184 }
3185 }
252b5132 3186 }
252b5132
RH
3187 else
3188 {
3189 (*_bfd_error_handler)
3190 (_("%s: ISA mismatch (%d) with previous modules (%d)"),
8f615d07 3191 bfd_archive_filename (ibfd),
252b5132
RH
3192 elf_mips_mach (new_flags),
3193 elf_mips_mach (old_flags));
3194 ok = false;
3195 }
3196
be3ccd9c
KH
3197 new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
3198 old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
252b5132
RH
3199 }
3200
103186c6
MM
3201 /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it
3202 does set EI_CLASS differently from any 32-bit ABI. */
3203 if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI)
be3ccd9c 3204 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
103186c6 3205 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
252b5132 3206 {
be3ccd9c 3207 /* Only error if both are set (to different values). */
103186c6 3208 if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI))
be3ccd9c 3209 || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
103186c6 3210 != elf_elfheader (obfd)->e_ident[EI_CLASS]))
252b5132
RH
3211 {
3212 (*_bfd_error_handler)
3213 (_("%s: ABI mismatch: linking %s module with previous %s modules"),
8f615d07 3214 bfd_archive_filename (ibfd),
103186c6
MM
3215 elf_mips_abi_name (ibfd),
3216 elf_mips_abi_name (obfd));
252b5132
RH
3217 ok = false;
3218 }
3219 new_flags &= ~EF_MIPS_ABI;
3220 old_flags &= ~EF_MIPS_ABI;
3221 }
3222
3223 /* Warn about any other mismatches */
3224 if (new_flags != old_flags)
3225 {
3226 (*_bfd_error_handler)
3227 (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
8f615d07 3228 bfd_archive_filename (ibfd), (unsigned long) new_flags,
252b5132
RH
3229 (unsigned long) old_flags);
3230 ok = false;
3231 }
3232
3233 if (! ok)
3234 {
3235 bfd_set_error (bfd_error_bad_value);
3236 return false;
3237 }
3238
3239 return true;
3240}
3241\f
103186c6 3242boolean
252b5132
RH
3243_bfd_mips_elf_print_private_bfd_data (abfd, ptr)
3244 bfd *abfd;
3245 PTR ptr;
3246{
3247 FILE *file = (FILE *) ptr;
3248
3249 BFD_ASSERT (abfd != NULL && ptr != NULL);
3250
3251 /* Print normal ELF private data. */
3252 _bfd_elf_print_private_bfd_data (abfd, ptr);
3253
3254 /* xgettext:c-format */
be3ccd9c 3255 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
252b5132
RH
3256
3257 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32)
be3ccd9c 3258 fprintf (file, _(" [abi=O32]"));
252b5132 3259 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O64)
be3ccd9c 3260 fprintf (file, _(" [abi=O64]"));
252b5132 3261 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32)
be3ccd9c 3262 fprintf (file, _(" [abi=EABI32]"));
252b5132 3263 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI64)
be3ccd9c 3264 fprintf (file, _(" [abi=EABI64]"));
252b5132 3265 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI))
be3ccd9c 3266 fprintf (file, _(" [abi unknown]"));
103186c6 3267 else if (ABI_N32_P (abfd))
be3ccd9c 3268 fprintf (file, _(" [abi=N32]"));
103186c6 3269 else if (ABI_64_P (abfd))
be3ccd9c 3270 fprintf (file, _(" [abi=64]"));
252b5132 3271 else
be3ccd9c 3272 fprintf (file, _(" [no abi set]"));
252b5132
RH
3273
3274 if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1)
be3ccd9c 3275 fprintf (file, _(" [mips1]"));
252b5132 3276 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2)
be3ccd9c 3277 fprintf (file, _(" [mips2]"));
252b5132 3278 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3)
be3ccd9c 3279 fprintf (file, _(" [mips3]"));
252b5132 3280 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4)
be3ccd9c 3281 fprintf (file, _(" [mips4]"));
84ea6cf2 3282 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_5)
517662d4 3283 fprintf (file, _(" [mips5]"));
e7af610e 3284 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32)
517662d4 3285 fprintf (file, _(" [mips32]"));
84ea6cf2 3286 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64)
517662d4 3287 fprintf (file, _(" [mips64]"));
252b5132 3288 else
be3ccd9c 3289 fprintf (file, _(" [unknown ISA]"));
252b5132
RH
3290
3291 if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE)
be3ccd9c 3292 fprintf (file, _(" [32bitmode]"));
252b5132 3293 else
be3ccd9c 3294 fprintf (file, _(" [not 32bitmode]"));
252b5132
RH
3295
3296 fputc ('\n', file);
3297
3298 return true;
3299}
3300\f
3301/* Handle a MIPS specific section when reading an object file. This
3302 is called when elfcode.h finds a section with an unknown type.
3303 This routine supports both the 32-bit and 64-bit ELF ABI.
3304
3305 FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure
3306 how to. */
3307
3308boolean
3309_bfd_mips_elf_section_from_shdr (abfd, hdr, name)
3310 bfd *abfd;
3311 Elf_Internal_Shdr *hdr;
103186c6 3312 char *name;
252b5132
RH
3313{
3314 flagword flags = 0;
3315
3316 /* There ought to be a place to keep ELF backend specific flags, but
3317 at the moment there isn't one. We just keep track of the
3318 sections by their name, instead. Fortunately, the ABI gives
3319 suggested names for all the MIPS specific sections, so we will
3320 probably get away with this. */
3321 switch (hdr->sh_type)
3322 {
3323 case SHT_MIPS_LIBLIST:
3324 if (strcmp (name, ".liblist") != 0)
3325 return false;
3326 break;
3327 case SHT_MIPS_MSYM:
c6142e5d 3328 if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0)
252b5132
RH
3329 return false;
3330 break;
3331 case SHT_MIPS_CONFLICT:
3332 if (strcmp (name, ".conflict") != 0)
3333 return false;
3334 break;
3335 case SHT_MIPS_GPTAB:
3336 if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0)
3337 return false;
3338 break;
3339 case SHT_MIPS_UCODE:
3340 if (strcmp (name, ".ucode") != 0)
3341 return false;
3342 break;
3343 case SHT_MIPS_DEBUG:
3344 if (strcmp (name, ".mdebug") != 0)
3345 return false;
3346 flags = SEC_DEBUGGING;
3347 break;
3348 case SHT_MIPS_REGINFO:
3349 if (strcmp (name, ".reginfo") != 0
3350 || hdr->sh_size != sizeof (Elf32_External_RegInfo))
3351 return false;
3352 flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE);
3353 break;
3354 case SHT_MIPS_IFACE:
3355 if (strcmp (name, ".MIPS.interfaces") != 0)
3356 return false;
3357 break;
3358 case SHT_MIPS_CONTENT:
3359 if (strncmp (name, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0)
3360 return false;
3361 break;
3362 case SHT_MIPS_OPTIONS:
303f629d 3363 if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) != 0)
252b5132
RH
3364 return false;
3365 break;
3366 case SHT_MIPS_DWARF:
3367 if (strncmp (name, ".debug_", sizeof ".debug_" - 1) != 0)
3368 return false;
3369 break;
3370 case SHT_MIPS_SYMBOL_LIB:
3371 if (strcmp (name, ".MIPS.symlib") != 0)
3372 return false;
3373 break;
3374 case SHT_MIPS_EVENTS:
3375 if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0
3376 && strncmp (name, ".MIPS.post_rel",
3377 sizeof ".MIPS.post_rel" - 1) != 0)
3378 return false;
3379 break;
3380 default:
3381 return false;
3382 }
3383
3384 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
3385 return false;
3386
3387 if (flags)
3388 {
3389 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3390 (bfd_get_section_flags (abfd,
3391 hdr->bfd_section)
3392 | flags)))
3393 return false;
3394 }
3395
252b5132
RH
3396 /* FIXME: We should record sh_info for a .gptab section. */
3397
3398 /* For a .reginfo section, set the gp value in the tdata information
3399 from the contents of this section. We need the gp value while
3400 processing relocs, so we just get it now. The .reginfo section
3401 is not used in the 64-bit MIPS ELF ABI. */
3402 if (hdr->sh_type == SHT_MIPS_REGINFO)
3403 {
3404 Elf32_External_RegInfo ext;
3405 Elf32_RegInfo s;
3406
3407 if (! bfd_get_section_contents (abfd, hdr->bfd_section, (PTR) &ext,
dc810e39
AM
3408 (file_ptr) 0,
3409 (bfd_size_type) sizeof ext))
252b5132
RH
3410 return false;
3411 bfd_mips_elf32_swap_reginfo_in (abfd, &ext, &s);
3412 elf_gp (abfd) = s.ri_gp_value;
3413 }
3414
3415 /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
3416 set the gp value based on what we find. We may see both
3417 SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
3418 they should agree. */
3419 if (hdr->sh_type == SHT_MIPS_OPTIONS)
3420 {
3421 bfd_byte *contents, *l, *lend;
3422
3423 contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
3424 if (contents == NULL)
3425 return false;
3426 if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents,
3427 (file_ptr) 0, hdr->sh_size))
3428 {
3429 free (contents);
3430 return false;
3431 }
3432 l = contents;
3433 lend = contents + hdr->sh_size;
3434 while (l + sizeof (Elf_External_Options) <= lend)
3435 {
3436 Elf_Internal_Options intopt;
3437
3438 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3439 &intopt);
103186c6
MM
3440 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3441 {
3442 Elf64_Internal_RegInfo intreg;
3443
3444 bfd_mips_elf64_swap_reginfo_in
3445 (abfd,
3446 ((Elf64_External_RegInfo *)
3447 (l + sizeof (Elf_External_Options))),
3448 &intreg);
3449 elf_gp (abfd) = intreg.ri_gp_value;
3450 }
3451 else if (intopt.kind == ODK_REGINFO)
252b5132
RH
3452 {
3453 Elf32_RegInfo intreg;
3454
3455 bfd_mips_elf32_swap_reginfo_in
3456 (abfd,
3457 ((Elf32_External_RegInfo *)
3458 (l + sizeof (Elf_External_Options))),
3459 &intreg);
3460 elf_gp (abfd) = intreg.ri_gp_value;
3461 }
3462 l += intopt.size;
3463 }
3464 free (contents);
3465 }
3466
3467 return true;
3468}
3469
3470/* Set the correct type for a MIPS ELF section. We do this by the
3471 section name, which is a hack, but ought to work. This routine is
3472 used by both the 32-bit and the 64-bit ABI. */
3473
3474boolean
3475_bfd_mips_elf_fake_sections (abfd, hdr, sec)
3476 bfd *abfd;
3477 Elf32_Internal_Shdr *hdr;
3478 asection *sec;
3479{
3480 register const char *name;
3481
3482 name = bfd_get_section_name (abfd, sec);
3483
3484 if (strcmp (name, ".liblist") == 0)
3485 {
3486 hdr->sh_type = SHT_MIPS_LIBLIST;
3487 hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib);
3488 /* The sh_link field is set in final_write_processing. */
3489 }
252b5132
RH
3490 else if (strcmp (name, ".conflict") == 0)
3491 hdr->sh_type = SHT_MIPS_CONFLICT;
3492 else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0)
3493 {
3494 hdr->sh_type = SHT_MIPS_GPTAB;
3495 hdr->sh_entsize = sizeof (Elf32_External_gptab);
3496 /* The sh_info field is set in final_write_processing. */
3497 }
3498 else if (strcmp (name, ".ucode") == 0)
3499 hdr->sh_type = SHT_MIPS_UCODE;
3500 else if (strcmp (name, ".mdebug") == 0)
3501 {
3502 hdr->sh_type = SHT_MIPS_DEBUG;
3503 /* In a shared object on Irix 5.3, the .mdebug section has an
3504 entsize of 0. FIXME: Does this matter? */
3505 if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0)
3506 hdr->sh_entsize = 0;
3507 else
3508 hdr->sh_entsize = 1;
3509 }
3510 else if (strcmp (name, ".reginfo") == 0)
3511 {
3512 hdr->sh_type = SHT_MIPS_REGINFO;
3513 /* In a shared object on Irix 5.3, the .reginfo section has an
3514 entsize of 0x18. FIXME: Does this matter? */
f7cb7d68 3515 if (SGI_COMPAT (abfd))
be3ccd9c
KH
3516 {
3517 if ((abfd->flags & DYNAMIC) != 0)
3518 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
3519 else
3520 hdr->sh_entsize = 1;
3521 }
252b5132 3522 else
be3ccd9c 3523 hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
252b5132
RH
3524 }
3525 else if (SGI_COMPAT (abfd)
3526 && (strcmp (name, ".hash") == 0
3527 || strcmp (name, ".dynamic") == 0
3528 || strcmp (name, ".dynstr") == 0))
3529 {
be3ccd9c
KH
3530 if (SGI_COMPAT (abfd))
3531 hdr->sh_entsize = 0;
252b5132
RH
3532#if 0
3533 /* This isn't how the Irix 6 linker behaves. */
3534 hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES;
3535#endif
3536 }
3537 else if (strcmp (name, ".got") == 0
303f629d 3538 || strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0
252b5132
RH
3539 || strcmp (name, ".sdata") == 0
3540 || strcmp (name, ".sbss") == 0
3541 || strcmp (name, ".lit4") == 0
3542 || strcmp (name, ".lit8") == 0)
3543 hdr->sh_flags |= SHF_MIPS_GPREL;
3544 else if (strcmp (name, ".MIPS.interfaces") == 0)
3545 {
3546 hdr->sh_type = SHT_MIPS_IFACE;
3547 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3548 }
3f830999 3549 else if (strncmp (name, ".MIPS.content", strlen (".MIPS.content")) == 0)
252b5132
RH
3550 {
3551 hdr->sh_type = SHT_MIPS_CONTENT;
3f830999 3552 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
252b5132
RH
3553 /* The sh_info field is set in final_write_processing. */
3554 }
303f629d 3555 else if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
252b5132
RH
3556 {
3557 hdr->sh_type = SHT_MIPS_OPTIONS;
3558 hdr->sh_entsize = 1;
3559 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3560 }
3561 else if (strncmp (name, ".debug_", sizeof ".debug_" - 1) == 0)
3562 hdr->sh_type = SHT_MIPS_DWARF;
3563 else if (strcmp (name, ".MIPS.symlib") == 0)
3564 {
3565 hdr->sh_type = SHT_MIPS_SYMBOL_LIB;
3566 /* The sh_link and sh_info fields are set in
3567 final_write_processing. */
3568 }
3569 else if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0
3570 || strncmp (name, ".MIPS.post_rel",
3571 sizeof ".MIPS.post_rel" - 1) == 0)
3572 {
3573 hdr->sh_type = SHT_MIPS_EVENTS;
3574 hdr->sh_flags |= SHF_MIPS_NOSTRIP;
3575 /* The sh_link field is set in final_write_processing. */
3576 }
c6142e5d
MM
3577 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) == 0)
3578 {
3579 hdr->sh_type = SHT_MIPS_MSYM;
3580 hdr->sh_flags |= SHF_ALLOC;
3581 hdr->sh_entsize = 8;
3582 }
252b5132 3583
23bc299b
MM
3584 /* The generic elf_fake_sections will set up REL_HDR using the
3585 default kind of relocations. But, we may actually need both
027d73eb
EC
3586 kinds of relocations, so we set up the second header here.
3587
3588 This is not necessary for the O32 ABI since that only uses Elf32_Rel
3589 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
3590 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
3591 of the resulting empty .rela.<section> sections starts with
3592 sh_offset == object size, and ld doesn't allow that. While the check
3593 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
3594 avoided by not emitting those useless sections in the first place. */
3595 if (IRIX_COMPAT (abfd) != ict_irix5 && (sec->flags & SEC_RELOC) != 0)
23bc299b
MM
3596 {
3597 struct bfd_elf_section_data *esd;
dc810e39 3598 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
23bc299b
MM
3599
3600 esd = elf_section_data (sec);
3601 BFD_ASSERT (esd->rel_hdr2 == NULL);
dc810e39 3602 esd->rel_hdr2 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt);
23bc299b
MM
3603 if (!esd->rel_hdr2)
3604 return false;
3605 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
3606 !elf_section_data (sec)->use_rela_p);
3607 }
3608
252b5132
RH
3609 return true;
3610}
3611
3612/* Given a BFD section, try to locate the corresponding ELF section
3613 index. This is used by both the 32-bit and the 64-bit ABI.
3614 Actually, it's not clear to me that the 64-bit ABI supports these,
3615 but for non-PIC objects we will certainly want support for at least
3616 the .scommon section. */
3617
3618boolean
af746e92 3619_bfd_mips_elf_section_from_bfd_section (abfd, sec, retval)
d9bc7a44 3620 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
3621 asection *sec;
3622 int *retval;
3623{
3624 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3625 {
3626 *retval = SHN_MIPS_SCOMMON;
3627 return true;
3628 }
3629 if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0)
3630 {
3631 *retval = SHN_MIPS_ACOMMON;
3632 return true;
3633 }
3634 return false;
3635}
3636
3637/* When are writing out the .options or .MIPS.options section,
3638 remember the bytes we are writing out, so that we can install the
3639 GP value in the section_processing routine. */
3640
3641boolean
3642_bfd_mips_elf_set_section_contents (abfd, section, location, offset, count)
3643 bfd *abfd;
3644 sec_ptr section;
3645 PTR location;
3646 file_ptr offset;
3647 bfd_size_type count;
3648{
303f629d 3649 if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
252b5132
RH
3650 {
3651 bfd_byte *c;
3652
3653 if (elf_section_data (section) == NULL)
3654 {
dc810e39
AM
3655 bfd_size_type amt = sizeof (struct bfd_elf_section_data);
3656 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
252b5132
RH
3657 if (elf_section_data (section) == NULL)
3658 return false;
3659 }
3660 c = (bfd_byte *) elf_section_data (section)->tdata;
3661 if (c == NULL)
3662 {
3663 bfd_size_type size;
3664
3665 if (section->_cooked_size != 0)
3666 size = section->_cooked_size;
3667 else
3668 size = section->_raw_size;
3669 c = (bfd_byte *) bfd_zalloc (abfd, size);
3670 if (c == NULL)
3671 return false;
3672 elf_section_data (section)->tdata = (PTR) c;
3673 }
3674
dc810e39 3675 memcpy (c + offset, location, (size_t) count);
252b5132
RH
3676 }
3677
3678 return _bfd_elf_set_section_contents (abfd, section, location, offset,
3679 count);
3680}
3681
3682/* Work over a section just before writing it out. This routine is
3683 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3684 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3685 a better way. */
3686
3687boolean
3688_bfd_mips_elf_section_processing (abfd, hdr)
3689 bfd *abfd;
3690 Elf_Internal_Shdr *hdr;
252b5132 3691{
cc3bfcee
ILT
3692 if (hdr->sh_type == SHT_MIPS_REGINFO
3693 && hdr->sh_size > 0)
252b5132
RH
3694 {
3695 bfd_byte buf[4];
3696
3697 BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
3698 BFD_ASSERT (hdr->contents == NULL);
3699
3700 if (bfd_seek (abfd,
3701 hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
dc810e39 3702 SEEK_SET) != 0)
252b5132 3703 return false;
dc810e39
AM
3704 H_PUT_32 (abfd, elf_gp (abfd), buf);
3705 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
252b5132
RH
3706 return false;
3707 }
3708
3709 if (hdr->sh_type == SHT_MIPS_OPTIONS
3710 && hdr->bfd_section != NULL
3711 && elf_section_data (hdr->bfd_section) != NULL
3712 && elf_section_data (hdr->bfd_section)->tdata != NULL)
3713 {
3714 bfd_byte *contents, *l, *lend;
3715
3716 /* We stored the section contents in the elf_section_data tdata
3717 field in the set_section_contents routine. We save the
3718 section contents so that we don't have to read them again.
3719 At this point we know that elf_gp is set, so we can look
3720 through the section contents to see if there is an
3721 ODK_REGINFO structure. */
3722
3723 contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata;
3724 l = contents;
3725 lend = contents + hdr->sh_size;
3726 while (l + sizeof (Elf_External_Options) <= lend)
3727 {
3728 Elf_Internal_Options intopt;
3729
3730 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3731 &intopt);
103186c6
MM
3732 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3733 {
3734 bfd_byte buf[8];
3735
3736 if (bfd_seek (abfd,
3737 (hdr->sh_offset
3738 + (l - contents)
3739 + sizeof (Elf_External_Options)
3740 + (sizeof (Elf64_External_RegInfo) - 8)),
dc810e39 3741 SEEK_SET) != 0)
103186c6 3742 return false;
dc810e39
AM
3743 H_PUT_64 (abfd, elf_gp (abfd), buf);
3744 if (bfd_bwrite (buf, (bfd_size_type) 8, abfd) != 8)
103186c6
MM
3745 return false;
3746 }
3747 else if (intopt.kind == ODK_REGINFO)
252b5132
RH
3748 {
3749 bfd_byte buf[4];
3750
3751 if (bfd_seek (abfd,
3752 (hdr->sh_offset
3753 + (l - contents)
3754 + sizeof (Elf_External_Options)
3755 + (sizeof (Elf32_External_RegInfo) - 4)),
dc810e39 3756 SEEK_SET) != 0)
252b5132 3757 return false;
dc810e39
AM
3758 H_PUT_32 (abfd, elf_gp (abfd), buf);
3759 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
252b5132
RH
3760 return false;
3761 }
3762 l += intopt.size;
3763 }
3764 }
3765
103186c6
MM
3766 if (hdr->bfd_section != NULL)
3767 {
3768 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3769
3770 if (strcmp (name, ".sdata") == 0
3771 || strcmp (name, ".lit8") == 0
3772 || strcmp (name, ".lit4") == 0)
3773 {
3774 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3775 hdr->sh_type = SHT_PROGBITS;
3776 }
3777 else if (strcmp (name, ".sbss") == 0)
3778 {
3779 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3780 hdr->sh_type = SHT_NOBITS;
3781 }
3782 else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0)
3783 {
3784 hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
3785 hdr->sh_type = SHT_PROGBITS;
3786 }
3787 else if (strcmp (name, ".compact_rel") == 0)
3788 {
3789 hdr->sh_flags = 0;
3790 hdr->sh_type = SHT_PROGBITS;
3791 }
3792 else if (strcmp (name, ".rtproc") == 0)
3793 {
3794 if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
3795 {
3796 unsigned int adjust;
3797
3798 adjust = hdr->sh_size % hdr->sh_addralign;
3799 if (adjust != 0)
3800 hdr->sh_size += hdr->sh_addralign - adjust;
3801 }
3802 }
3803 }
3804
3805 return true;
252b5132
RH
3806}
3807\f
3808/* MIPS ELF uses two common sections. One is the usual one, and the
3809 other is for small objects. All the small objects are kept
3810 together, and then referenced via the gp pointer, which yields
3811 faster assembler code. This is what we use for the small common
3812 section. This approach is copied from ecoff.c. */
3813static asection mips_elf_scom_section;
3814static asymbol mips_elf_scom_symbol;
3815static asymbol *mips_elf_scom_symbol_ptr;
3816
3817/* MIPS ELF also uses an acommon section, which represents an
3818 allocated common symbol which may be overridden by a
3819 definition in a shared library. */
3820static asection mips_elf_acom_section;
3821static asymbol mips_elf_acom_symbol;
3822static asymbol *mips_elf_acom_symbol_ptr;
3823
252b5132
RH
3824/* Handle the special MIPS section numbers that a symbol may use.
3825 This is used for both the 32-bit and the 64-bit ABI. */
3826
3827void
3828_bfd_mips_elf_symbol_processing (abfd, asym)
3829 bfd *abfd;
3830 asymbol *asym;
3831{
3832 elf_symbol_type *elfsym;
3833
3834 elfsym = (elf_symbol_type *) asym;
3835 switch (elfsym->internal_elf_sym.st_shndx)
3836 {
3837 case SHN_MIPS_ACOMMON:
3838 /* This section is used in a dynamically linked executable file.
3839 It is an allocated common section. The dynamic linker can
3840 either resolve these symbols to something in a shared
3841 library, or it can just leave them here. For our purposes,
3842 we can consider these symbols to be in a new section. */
3843 if (mips_elf_acom_section.name == NULL)
3844 {
3845 /* Initialize the acommon section. */
3846 mips_elf_acom_section.name = ".acommon";
3847 mips_elf_acom_section.flags = SEC_ALLOC;
3848 mips_elf_acom_section.output_section = &mips_elf_acom_section;
3849 mips_elf_acom_section.symbol = &mips_elf_acom_symbol;
3850 mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr;
3851 mips_elf_acom_symbol.name = ".acommon";
3852 mips_elf_acom_symbol.flags = BSF_SECTION_SYM;
3853 mips_elf_acom_symbol.section = &mips_elf_acom_section;
3854 mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol;
3855 }
3856 asym->section = &mips_elf_acom_section;
3857 break;
3858
3859 case SHN_COMMON:
3860 /* Common symbols less than the GP size are automatically
7403cb63
MM
3861 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3862 if (asym->value > elf_gp_size (abfd)
3863 || IRIX_COMPAT (abfd) == ict_irix6)
252b5132
RH
3864 break;
3865 /* Fall through. */
3866 case SHN_MIPS_SCOMMON:
3867 if (mips_elf_scom_section.name == NULL)
3868 {
3869 /* Initialize the small common section. */
3870 mips_elf_scom_section.name = ".scommon";
3871 mips_elf_scom_section.flags = SEC_IS_COMMON;
3872 mips_elf_scom_section.output_section = &mips_elf_scom_section;
3873 mips_elf_scom_section.symbol = &mips_elf_scom_symbol;
3874 mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr;
3875 mips_elf_scom_symbol.name = ".scommon";
3876 mips_elf_scom_symbol.flags = BSF_SECTION_SYM;
3877 mips_elf_scom_symbol.section = &mips_elf_scom_section;
3878 mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol;
3879 }
3880 asym->section = &mips_elf_scom_section;
3881 asym->value = elfsym->internal_elf_sym.st_size;
3882 break;
3883
3884 case SHN_MIPS_SUNDEFINED:
3885 asym->section = bfd_und_section_ptr;
3886 break;
3887
3888#if 0 /* for SGI_COMPAT */
3889 case SHN_MIPS_TEXT:
3890 asym->section = mips_elf_text_section_ptr;
3891 break;
3892
3893 case SHN_MIPS_DATA:
3894 asym->section = mips_elf_data_section_ptr;
3895 break;
3896#endif
3897 }
3898}
3899\f
3900/* When creating an Irix 5 executable, we need REGINFO and RTPROC
3901 segments. */
3902
103186c6
MM
3903int
3904_bfd_mips_elf_additional_program_headers (abfd)
252b5132
RH
3905 bfd *abfd;
3906{
3907 asection *s;
303f629d 3908 int ret = 0;
252b5132 3909
303f629d 3910 /* See if we need a PT_MIPS_REGINFO segment. */
252b5132 3911 s = bfd_get_section_by_name (abfd, ".reginfo");
303f629d
MM
3912 if (s && (s->flags & SEC_LOAD))
3913 ++ret;
252b5132 3914
303f629d
MM
3915 /* See if we need a PT_MIPS_OPTIONS segment. */
3916 if (IRIX_COMPAT (abfd) == ict_irix6
be3ccd9c 3917 && bfd_get_section_by_name (abfd,
303f629d
MM
3918 MIPS_ELF_OPTIONS_SECTION_NAME (abfd)))
3919 ++ret;
3920
3921 /* See if we need a PT_MIPS_RTPROC segment. */
3922 if (IRIX_COMPAT (abfd) == ict_irix5
3923 && bfd_get_section_by_name (abfd, ".dynamic")
3924 && bfd_get_section_by_name (abfd, ".mdebug"))
3925 ++ret;
252b5132
RH
3926
3927 return ret;
3928}
3929
3930/* Modify the segment map for an Irix 5 executable. */
3931
103186c6
MM
3932boolean
3933_bfd_mips_elf_modify_segment_map (abfd)
252b5132
RH
3934 bfd *abfd;
3935{
3936 asection *s;
3937 struct elf_segment_map *m, **pm;
dc810e39 3938 bfd_size_type amt;
252b5132 3939
252b5132
RH
3940 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3941 segment. */
3942 s = bfd_get_section_by_name (abfd, ".reginfo");
3943 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3944 {
3945 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3946 if (m->p_type == PT_MIPS_REGINFO)
3947 break;
3948 if (m == NULL)
3949 {
dc810e39
AM
3950 amt = sizeof *m;
3951 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH
3952 if (m == NULL)
3953 return false;
3954
3955 m->p_type = PT_MIPS_REGINFO;
3956 m->count = 1;
3957 m->sections[0] = s;
3958
3959 /* We want to put it after the PHDR and INTERP segments. */
3960 pm = &elf_tdata (abfd)->segment_map;
3961 while (*pm != NULL
3962 && ((*pm)->p_type == PT_PHDR
3963 || (*pm)->p_type == PT_INTERP))
3964 pm = &(*pm)->next;
3965
3966 m->next = *pm;
3967 *pm = m;
3968 }
3969 }
3970
303f629d
MM
3971 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3972 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3973 PT_OPTIONS segement immediately following the program header
3974 table. */
3975 if (IRIX_COMPAT (abfd) == ict_irix6)
252b5132 3976 {
303f629d
MM
3977 for (s = abfd->sections; s; s = s->next)
3978 if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS)
252b5132 3979 break;
303f629d
MM
3980
3981 if (s)
252b5132 3982 {
303f629d
MM
3983 struct elf_segment_map *options_segment;
3984
435394bf
MM
3985 /* Usually, there's a program header table. But, sometimes
3986 there's not (like when running the `ld' testsuite). So,
3987 if there's no program header table, we just put the
3988 options segement at the end. */
be3ccd9c 3989 for (pm = &elf_tdata (abfd)->segment_map;
435394bf
MM
3990 *pm != NULL;
3991 pm = &(*pm)->next)
3992 if ((*pm)->p_type == PT_PHDR)
303f629d
MM
3993 break;
3994
dc810e39
AM
3995 amt = sizeof (struct elf_segment_map);
3996 options_segment = bfd_zalloc (abfd, amt);
435394bf 3997 options_segment->next = *pm;
303f629d
MM
3998 options_segment->p_type = PT_MIPS_OPTIONS;
3999 options_segment->p_flags = PF_R;
4000 options_segment->p_flags_valid = true;
4001 options_segment->count = 1;
4002 options_segment->sections[0] = s;
435394bf 4003 *pm = options_segment;
303f629d
MM
4004 }
4005 }
4006 else
4007 {
f7cb7d68 4008 if (IRIX_COMPAT (abfd) == ict_irix5)
303f629d 4009 {
f7cb7d68
UC
4010 /* If there are .dynamic and .mdebug sections, we make a room
4011 for the RTPROC header. FIXME: Rewrite without section names. */
4012 if (bfd_get_section_by_name (abfd, ".interp") == NULL
4013 && bfd_get_section_by_name (abfd, ".dynamic") != NULL
4014 && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
252b5132 4015 {
f7cb7d68
UC
4016 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
4017 if (m->p_type == PT_MIPS_RTPROC)
4018 break;
303f629d 4019 if (m == NULL)
f7cb7d68 4020 {
dc810e39
AM
4021 amt = sizeof *m;
4022 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
f7cb7d68
UC
4023 if (m == NULL)
4024 return false;
252b5132 4025
f7cb7d68 4026 m->p_type = PT_MIPS_RTPROC;
252b5132 4027
f7cb7d68
UC
4028 s = bfd_get_section_by_name (abfd, ".rtproc");
4029 if (s == NULL)
4030 {
4031 m->count = 0;
4032 m->p_flags = 0;
4033 m->p_flags_valid = 1;
4034 }
4035 else
4036 {
4037 m->count = 1;
4038 m->sections[0] = s;
4039 }
303f629d 4040
f7cb7d68
UC
4041 /* We want to put it after the DYNAMIC segment. */
4042 pm = &elf_tdata (abfd)->segment_map;
4043 while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
4044 pm = &(*pm)->next;
4045 if (*pm != NULL)
4046 pm = &(*pm)->next;
303f629d 4047
f7cb7d68
UC
4048 m->next = *pm;
4049 *pm = m;
4050 }
303f629d 4051 }
252b5132 4052 }
303f629d
MM
4053 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
4054 .dynstr, .dynsym, and .hash sections, and everything in
4055 between. */
f7cb7d68
UC
4056 for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL;
4057 pm = &(*pm)->next)
303f629d
MM
4058 if ((*pm)->p_type == PT_DYNAMIC)
4059 break;
4060 m = *pm;
1b58be7e 4061 if (m != NULL && IRIX_COMPAT (abfd) == ict_none)
f7cb7d68
UC
4062 {
4063 /* For a normal mips executable the permissions for the PT_DYNAMIC
4064 segment are read, write and execute. We do that here since
4065 the code in elf.c sets only the read permission. This matters
be3ccd9c 4066 sometimes for the dynamic linker. */
f7cb7d68
UC
4067 if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
4068 {
4069 m->p_flags = PF_R | PF_W | PF_X;
4070 m->p_flags_valid = 1;
4071 }
4072 }
303f629d 4073 if (m != NULL
f7cb7d68 4074 && m->count == 1 && strcmp (m->sections[0]->name, ".dynamic") == 0)
252b5132 4075 {
38b1a46c
NC
4076 static const char *sec_names[] =
4077 {
be3ccd9c
KH
4078 ".dynamic", ".dynstr", ".dynsym", ".hash"
4079 };
303f629d
MM
4080 bfd_vma low, high;
4081 unsigned int i, c;
4082 struct elf_segment_map *n;
4083
4084 low = 0xffffffff;
4085 high = 0;
4086 for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
252b5132 4087 {
303f629d
MM
4088 s = bfd_get_section_by_name (abfd, sec_names[i]);
4089 if (s != NULL && (s->flags & SEC_LOAD) != 0)
4090 {
4091 bfd_size_type sz;
4092
4093 if (low > s->vma)
4094 low = s->vma;
4095 sz = s->_cooked_size;
4096 if (sz == 0)
4097 sz = s->_raw_size;
4098 if (high < s->vma + sz)
4099 high = s->vma + sz;
4100 }
252b5132 4101 }
252b5132 4102
303f629d
MM
4103 c = 0;
4104 for (s = abfd->sections; s != NULL; s = s->next)
4105 if ((s->flags & SEC_LOAD) != 0
4106 && s->vma >= low
4107 && ((s->vma
f7cb7d68
UC
4108 + (s->_cooked_size !=
4109 0 ? s->_cooked_size : s->_raw_size)) <= high))
303f629d
MM
4110 ++c;
4111
dc810e39
AM
4112 amt = sizeof *n + (bfd_size_type) (c - 1) * sizeof (asection *);
4113 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
303f629d
MM
4114 if (n == NULL)
4115 return false;
4116 *n = *m;
4117 n->count = c;
252b5132 4118
303f629d
MM
4119 i = 0;
4120 for (s = abfd->sections; s != NULL; s = s->next)
252b5132 4121 {
303f629d
MM
4122 if ((s->flags & SEC_LOAD) != 0
4123 && s->vma >= low
4124 && ((s->vma
4125 + (s->_cooked_size != 0 ?
f7cb7d68 4126 s->_cooked_size : s->_raw_size)) <= high))
303f629d
MM
4127 {
4128 n->sections[i] = s;
4129 ++i;
4130 }
252b5132 4131 }
252b5132 4132
303f629d
MM
4133 *pm = n;
4134 }
252b5132
RH
4135 }
4136
4137 return true;
4138}
4139\f
4140/* The structure of the runtime procedure descriptor created by the
4141 loader for use by the static exception system. */
4142
4143typedef struct runtime_pdr {
4144 bfd_vma adr; /* memory address of start of procedure */
4145 long regmask; /* save register mask */
4146 long regoffset; /* save register offset */
4147 long fregmask; /* save floating point register mask */
4148 long fregoffset; /* save floating point register offset */
4149 long frameoffset; /* frame size */
4150 short framereg; /* frame pointer register */
4151 short pcreg; /* offset or reg of return pc */
4152 long irpss; /* index into the runtime string table */
4153 long reserved;
4154 struct exception_info *exception_info;/* pointer to exception array */
4155} RPDR, *pRPDR;
be3ccd9c 4156#define cbRPDR sizeof (RPDR)
252b5132
RH
4157#define rpdNil ((pRPDR) 0)
4158
4159/* Swap RPDR (runtime procedure table entry) for output. */
4160
4161static void ecoff_swap_rpdr_out
4162 PARAMS ((bfd *, const RPDR *, struct rpdr_ext *));
4163
4164static void
4165ecoff_swap_rpdr_out (abfd, in, ex)
4166 bfd *abfd;
4167 const RPDR *in;
4168 struct rpdr_ext *ex;
4169{
dc810e39
AM
4170 /* ECOFF_PUT_OFF was defined in ecoffswap.h. */
4171 ECOFF_PUT_OFF (abfd, in->adr, ex->p_adr);
4172 H_PUT_32 (abfd, in->regmask, ex->p_regmask);
4173 H_PUT_32 (abfd, in->regoffset, ex->p_regoffset);
4174 H_PUT_32 (abfd, in->fregmask, ex->p_fregmask);
4175 H_PUT_32 (abfd, in->fregoffset, ex->p_fregoffset);
4176 H_PUT_32 (abfd, in->frameoffset, ex->p_frameoffset);
4177
4178 H_PUT_16 (abfd, in->framereg, ex->p_framereg);
4179 H_PUT_16 (abfd, in->pcreg, ex->p_pcreg);
4180
4181 H_PUT_32 (abfd, in->irpss, ex->p_irpss);
252b5132 4182#if 0 /* FIXME */
dc810e39 4183 ECOFF_PUT_OFF (abfd, in->exception_info, ex->p_exception_info);
252b5132
RH
4184#endif
4185}
4186\f
4187/* Read ECOFF debugging information from a .mdebug section into a
4188 ecoff_debug_info structure. */
4189
4190boolean
4191_bfd_mips_elf_read_ecoff_info (abfd, section, debug)
4192 bfd *abfd;
4193 asection *section;
4194 struct ecoff_debug_info *debug;
4195{
4196 HDRR *symhdr;
4197 const struct ecoff_debug_swap *swap;
4198 char *ext_hdr = NULL;
4199
4200 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
be3ccd9c 4201 memset (debug, 0, sizeof (*debug));
252b5132 4202
dc810e39 4203 ext_hdr = (char *) bfd_malloc (swap->external_hdr_size);
252b5132
RH
4204 if (ext_hdr == NULL && swap->external_hdr_size != 0)
4205 goto error_return;
4206
4207 if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
4208 swap->external_hdr_size)
4209 == false)
4210 goto error_return;
4211
4212 symhdr = &debug->symbolic_header;
4213 (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
4214
4215 /* The symbolic header contains absolute file offsets and sizes to
4216 read. */
4217#define READ(ptr, offset, count, size, type) \
4218 if (symhdr->count == 0) \
4219 debug->ptr = NULL; \
4220 else \
4221 { \
dc810e39
AM
4222 bfd_size_type amt = (bfd_size_type) size * symhdr->count; \
4223 debug->ptr = (type) bfd_malloc (amt); \
252b5132
RH
4224 if (debug->ptr == NULL) \
4225 goto error_return; \
4226 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
dc810e39 4227 || bfd_bread (debug->ptr, amt, abfd) != amt) \
252b5132
RH
4228 goto error_return; \
4229 }
4230
4231 READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
4232 READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
4233 READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
4234 READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
4235 READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
4236 READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
4237 union aux_ext *);
4238 READ (ss, cbSsOffset, issMax, sizeof (char), char *);
4239 READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
4240 READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
4241 READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
4242 READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
4243#undef READ
4244
4245 debug->fdr = NULL;
4246 debug->adjust = NULL;
4247
4248 return true;
4249
4250 error_return:
4251 if (ext_hdr != NULL)
4252 free (ext_hdr);
4253 if (debug->line != NULL)
4254 free (debug->line);
4255 if (debug->external_dnr != NULL)
4256 free (debug->external_dnr);
4257 if (debug->external_pdr != NULL)
4258 free (debug->external_pdr);
4259 if (debug->external_sym != NULL)
4260 free (debug->external_sym);
4261 if (debug->external_opt != NULL)
4262 free (debug->external_opt);
4263 if (debug->external_aux != NULL)
4264 free (debug->external_aux);
4265 if (debug->ss != NULL)
4266 free (debug->ss);
4267 if (debug->ssext != NULL)
4268 free (debug->ssext);
4269 if (debug->external_fdr != NULL)
4270 free (debug->external_fdr);
4271 if (debug->external_rfd != NULL)
4272 free (debug->external_rfd);
4273 if (debug->external_ext != NULL)
4274 free (debug->external_ext);
4275 return false;
4276}
4277\f
4278/* MIPS ELF local labels start with '$', not 'L'. */
4279
252b5132
RH
4280static boolean
4281mips_elf_is_local_label_name (abfd, name)
4282 bfd *abfd;
4283 const char *name;
4284{
4285 if (name[0] == '$')
4286 return true;
4287
4288 /* On Irix 6, the labels go back to starting with '.', so we accept
4289 the generic ELF local label syntax as well. */
4290 return _bfd_elf_is_local_label_name (abfd, name);
4291}
4292
4293/* MIPS ELF uses a special find_nearest_line routine in order the
4294 handle the ECOFF debugging information. */
4295
38b1a46c
NC
4296struct mips_elf_find_line
4297{
252b5132
RH
4298 struct ecoff_debug_info d;
4299 struct ecoff_find_line i;
4300};
4301
4302boolean
4303_bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
4304 functionname_ptr, line_ptr)
4305 bfd *abfd;
4306 asection *section;
4307 asymbol **symbols;
4308 bfd_vma offset;
4309 const char **filename_ptr;
4310 const char **functionname_ptr;
4311 unsigned int *line_ptr;
4312{
4313 asection *msec;
4314
4315 if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
4316 filename_ptr, functionname_ptr,
4317 line_ptr))
4318 return true;
4319
4320 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
4321 filename_ptr, functionname_ptr,
be3ccd9c 4322 line_ptr,
dc810e39 4323 (unsigned) (ABI_64_P (abfd) ? 8 : 0),
857ec808 4324 &elf_tdata (abfd)->dwarf2_find_line_info))
252b5132
RH
4325 return true;
4326
4327 msec = bfd_get_section_by_name (abfd, ".mdebug");
4328 if (msec != NULL)
4329 {
4330 flagword origflags;
4331 struct mips_elf_find_line *fi;
4332 const struct ecoff_debug_swap * const swap =
4333 get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4334
4335 /* If we are called during a link, mips_elf_final_link may have
4336 cleared the SEC_HAS_CONTENTS field. We force it back on here
4337 if appropriate (which it normally will be). */
4338 origflags = msec->flags;
4339 if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
4340 msec->flags |= SEC_HAS_CONTENTS;
4341
4342 fi = elf_tdata (abfd)->find_line_info;
4343 if (fi == NULL)
4344 {
4345 bfd_size_type external_fdr_size;
4346 char *fraw_src;
4347 char *fraw_end;
4348 struct fdr *fdr_ptr;
dc810e39 4349 bfd_size_type amt = sizeof (struct mips_elf_find_line);
252b5132 4350
dc810e39 4351 fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt);
252b5132
RH
4352 if (fi == NULL)
4353 {
4354 msec->flags = origflags;
4355 return false;
4356 }
4357
4358 if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
4359 {
4360 msec->flags = origflags;
4361 return false;
4362 }
4363
4364 /* Swap in the FDR information. */
dc810e39
AM
4365 amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr);
4366 fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt);
252b5132
RH
4367 if (fi->d.fdr == NULL)
4368 {
4369 msec->flags = origflags;
4370 return false;
4371 }
4372 external_fdr_size = swap->external_fdr_size;
4373 fdr_ptr = fi->d.fdr;
4374 fraw_src = (char *) fi->d.external_fdr;
4375 fraw_end = (fraw_src
4376 + fi->d.symbolic_header.ifdMax * external_fdr_size);
4377 for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
4378 (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
4379
4380 elf_tdata (abfd)->find_line_info = fi;
4381
4382 /* Note that we don't bother to ever free this information.
4383 find_nearest_line is either called all the time, as in
4384 objdump -l, so the information should be saved, or it is
4385 rarely called, as in ld error messages, so the memory
4386 wasted is unimportant. Still, it would probably be a
4387 good idea for free_cached_info to throw it away. */
4388 }
4389
4390 if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
4391 &fi->i, filename_ptr, functionname_ptr,
4392 line_ptr))
4393 {
4394 msec->flags = origflags;
4395 return true;
4396 }
4397
4398 msec->flags = origflags;
4399 }
4400
4401 /* Fall back on the generic ELF find_nearest_line routine. */
4402
4403 return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
4404 filename_ptr, functionname_ptr,
4405 line_ptr);
4406}
4407\f
4408 /* The mips16 compiler uses a couple of special sections to handle
4409 floating point arguments.
4410
4411 Section names that look like .mips16.fn.FNNAME contain stubs that
4412 copy floating point arguments from the fp regs to the gp regs and
4413 then jump to FNNAME. If any 32 bit function calls FNNAME, the
4414 call should be redirected to the stub instead. If no 32 bit
4415 function calls FNNAME, the stub should be discarded. We need to
4416 consider any reference to the function, not just a call, because
4417 if the address of the function is taken we will need the stub,
4418 since the address might be passed to a 32 bit function.
4419
4420 Section names that look like .mips16.call.FNNAME contain stubs
4421 that copy floating point arguments from the gp regs to the fp
4422 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
4423 then any 16 bit function that calls FNNAME should be redirected
4424 to the stub instead. If FNNAME is not a 32 bit function, the
4425 stub should be discarded.
4426
4427 .mips16.call.fp.FNNAME sections are similar, but contain stubs
4428 which call FNNAME and then copy the return value from the fp regs
4429 to the gp regs. These stubs store the return value in $18 while
4430 calling FNNAME; any function which might call one of these stubs
4431 must arrange to save $18 around the call. (This case is not
4432 needed for 32 bit functions that call 16 bit functions, because
4433 16 bit functions always return floating point values in both
4434 $f0/$f1 and $2/$3.)
4435
4436 Note that in all cases FNNAME might be defined statically.
4437 Therefore, FNNAME is not used literally. Instead, the relocation
4438 information will indicate which symbol the section is for.
4439
4440 We record any stubs that we find in the symbol table. */
4441
4442#define FN_STUB ".mips16.fn."
4443#define CALL_STUB ".mips16.call."
4444#define CALL_FP_STUB ".mips16.call.fp."
4445
252b5132
RH
4446/* MIPS ELF linker hash table. */
4447
38b1a46c
NC
4448struct mips_elf_link_hash_table
4449{
252b5132
RH
4450 struct elf_link_hash_table root;
4451#if 0
4452 /* We no longer use this. */
4453 /* String section indices for the dynamic section symbols. */
4454 bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES];
4455#endif
4456 /* The number of .rtproc entries. */
4457 bfd_size_type procedure_count;
4458 /* The size of the .compact_rel section (if SGI_COMPAT). */
4459 bfd_size_type compact_rel_size;
4460 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
be3ccd9c 4461 entry is set to the address of __rld_obj_head as in Irix 5. */
252b5132
RH
4462 boolean use_rld_obj_head;
4463 /* This is the value of the __rld_map or __rld_obj_head symbol. */
4464 bfd_vma rld_value;
be3ccd9c 4465 /* This is set if we see any mips16 stub sections. */
252b5132
RH
4466 boolean mips16_stubs_seen;
4467};
4468
4469/* Look up an entry in a MIPS ELF linker hash table. */
4470
4471#define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
4472 ((struct mips_elf_link_hash_entry *) \
4473 elf_link_hash_lookup (&(table)->root, (string), (create), \
4474 (copy), (follow)))
4475
4476/* Traverse a MIPS ELF linker hash table. */
4477
4478#define mips_elf_link_hash_traverse(table, func, info) \
4479 (elf_link_hash_traverse \
4480 (&(table)->root, \
4481 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
4482 (info)))
4483
4484/* Get the MIPS ELF linker hash table from a link_info structure. */
4485
4486#define mips_elf_hash_table(p) \
4487 ((struct mips_elf_link_hash_table *) ((p)->hash))
4488
4489static boolean mips_elf_output_extsym
4490 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
4491
4492/* Create an entry in a MIPS ELF linker hash table. */
4493
4494static struct bfd_hash_entry *
4495mips_elf_link_hash_newfunc (entry, table, string)
4496 struct bfd_hash_entry *entry;
4497 struct bfd_hash_table *table;
4498 const char *string;
4499{
4500 struct mips_elf_link_hash_entry *ret =
4501 (struct mips_elf_link_hash_entry *) entry;
4502
4503 /* Allocate the structure if it has not already been allocated by a
4504 subclass. */
4505 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4506 ret = ((struct mips_elf_link_hash_entry *)
4507 bfd_hash_allocate (table,
4508 sizeof (struct mips_elf_link_hash_entry)));
4509 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4510 return (struct bfd_hash_entry *) ret;
4511
4512 /* Call the allocation method of the superclass. */
4513 ret = ((struct mips_elf_link_hash_entry *)
4514 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
4515 table, string));
4516 if (ret != (struct mips_elf_link_hash_entry *) NULL)
4517 {
4518 /* Set local fields. */
4519 memset (&ret->esym, 0, sizeof (EXTR));
4520 /* We use -2 as a marker to indicate that the information has
4521 not been set. -1 means there is no associated ifd. */
4522 ret->esym.ifd = -2;
a3c7651d 4523 ret->possibly_dynamic_relocs = 0;
43917054 4524 ret->readonly_reloc = false;
c6142e5d 4525 ret->min_dyn_reloc_index = 0;
9117d219 4526 ret->no_fn_stub = false;
252b5132
RH
4527 ret->fn_stub = NULL;
4528 ret->need_fn_stub = false;
4529 ret->call_stub = NULL;
4530 ret->call_fp_stub = NULL;
4531 }
4532
4533 return (struct bfd_hash_entry *) ret;
4534}
4535
9e80ff3a 4536static void
e5094212 4537_bfd_mips_elf_hide_symbol (info, entry, force_local)
b305ef96 4538 struct bfd_link_info *info;
9e80ff3a 4539 struct elf_link_hash_entry *entry;
e5094212 4540 boolean force_local;
b305ef96
UC
4541{
4542 bfd *dynobj;
4543 asection *got;
4544 struct mips_got_info *g;
9e80ff3a
L
4545 struct mips_elf_link_hash_entry *h;
4546 h = (struct mips_elf_link_hash_entry *) entry;
b305ef96
UC
4547 dynobj = elf_hash_table (info)->dynobj;
4548 got = bfd_get_section_by_name (dynobj, ".got");
4549 g = (struct mips_got_info *) elf_section_data (got)->tdata;
4550
e5094212 4551 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
b305ef96
UC
4552
4553 /* FIXME: Do we allocate too much GOT space here? */
4554 g->local_gotno++;
4555 got->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
4556}
4557
252b5132
RH
4558/* Create a MIPS ELF linker hash table. */
4559
103186c6
MM
4560struct bfd_link_hash_table *
4561_bfd_mips_elf_link_hash_table_create (abfd)
252b5132
RH
4562 bfd *abfd;
4563{
4564 struct mips_elf_link_hash_table *ret;
dc810e39 4565 bfd_size_type amt = sizeof (struct mips_elf_link_hash_table);
252b5132 4566
dc810e39 4567 ret = (struct mips_elf_link_hash_table *) bfd_alloc (abfd, amt);
252b5132
RH
4568 if (ret == (struct mips_elf_link_hash_table *) NULL)
4569 return NULL;
4570
4571 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
4572 mips_elf_link_hash_newfunc))
4573 {
4574 bfd_release (abfd, ret);
4575 return NULL;
4576 }
4577
4578#if 0
4579 /* We no longer use this. */
4580 for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++)
4581 ret->dynsym_sec_strindex[i] = (bfd_size_type) -1;
4582#endif
4583 ret->procedure_count = 0;
4584 ret->compact_rel_size = 0;
4585 ret->use_rld_obj_head = false;
4586 ret->rld_value = 0;
4587 ret->mips16_stubs_seen = false;
4588
4589 return &ret->root.root;
4590}
4591
4592/* Hook called by the linker routine which adds symbols from an object
4593 file. We must handle the special MIPS section numbers here. */
4594
103186c6
MM
4595boolean
4596_bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
252b5132
RH
4597 bfd *abfd;
4598 struct bfd_link_info *info;
4599 const Elf_Internal_Sym *sym;
4600 const char **namep;
5f771d47 4601 flagword *flagsp ATTRIBUTE_UNUSED;
252b5132
RH
4602 asection **secp;
4603 bfd_vma *valp;
4604{
4605 if (SGI_COMPAT (abfd)
4606 && (abfd->flags & DYNAMIC) != 0
4607 && strcmp (*namep, "_rld_new_interface") == 0)
4608 {
4609 /* Skip Irix 5 rld entry name. */
4610 *namep = NULL;
4611 return true;
4612 }
4613
4614 switch (sym->st_shndx)
4615 {
4616 case SHN_COMMON:
4617 /* Common symbols less than the GP size are automatically
4618 treated as SHN_MIPS_SCOMMON symbols. */
7403cb63
MM
4619 if (sym->st_size > elf_gp_size (abfd)
4620 || IRIX_COMPAT (abfd) == ict_irix6)
252b5132
RH
4621 break;
4622 /* Fall through. */
4623 case SHN_MIPS_SCOMMON:
4624 *secp = bfd_make_section_old_way (abfd, ".scommon");
4625 (*secp)->flags |= SEC_IS_COMMON;
4626 *valp = sym->st_size;
4627 break;
4628
4629 case SHN_MIPS_TEXT:
4630 /* This section is used in a shared object. */
b305ef96 4631 if (elf_tdata (abfd)->elf_text_section == NULL)
252b5132 4632 {
b305ef96
UC
4633 asymbol *elf_text_symbol;
4634 asection *elf_text_section;
dc810e39 4635 bfd_size_type amt = sizeof (asection);
b305ef96 4636
dc810e39 4637 elf_text_section = bfd_zalloc (abfd, amt);
b305ef96
UC
4638 if (elf_text_section == NULL)
4639 return false;
4640
dc810e39
AM
4641 amt = sizeof (asymbol);
4642 elf_text_symbol = bfd_zalloc (abfd, amt);
b305ef96
UC
4643 if (elf_text_symbol == NULL)
4644 return false;
4645
252b5132 4646 /* Initialize the section. */
b305ef96
UC
4647
4648 elf_tdata (abfd)->elf_text_section = elf_text_section;
4649 elf_tdata (abfd)->elf_text_symbol = elf_text_symbol;
4650
4651 elf_text_section->symbol = elf_text_symbol;
4652 elf_text_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_text_symbol;
4653
4654 elf_text_section->name = ".text";
4655 elf_text_section->flags = SEC_NO_FLAGS;
4656 elf_text_section->output_section = NULL;
4657 elf_text_section->owner = abfd;
4658 elf_text_symbol->name = ".text";
4659 elf_text_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4660 elf_text_symbol->section = elf_text_section;
252b5132
RH
4661 }
4662 /* This code used to do *secp = bfd_und_section_ptr if
4663 info->shared. I don't know why, and that doesn't make sense,
4664 so I took it out. */
b305ef96 4665 *secp = elf_tdata (abfd)->elf_text_section;
252b5132
RH
4666 break;
4667
4668 case SHN_MIPS_ACOMMON:
4669 /* Fall through. XXX Can we treat this as allocated data? */
4670 case SHN_MIPS_DATA:
4671 /* This section is used in a shared object. */
b305ef96 4672 if (elf_tdata (abfd)->elf_data_section == NULL)
252b5132 4673 {
b305ef96
UC
4674 asymbol *elf_data_symbol;
4675 asection *elf_data_section;
dc810e39 4676 bfd_size_type amt = sizeof (asection);
b305ef96 4677
dc810e39 4678 elf_data_section = bfd_zalloc (abfd, amt);
b305ef96
UC
4679 if (elf_data_section == NULL)
4680 return false;
4681
dc810e39
AM
4682 amt = sizeof (asymbol);
4683 elf_data_symbol = bfd_zalloc (abfd, amt);
b305ef96
UC
4684 if (elf_data_symbol == NULL)
4685 return false;
4686
252b5132 4687 /* Initialize the section. */
b305ef96
UC
4688
4689 elf_tdata (abfd)->elf_data_section = elf_data_section;
4690 elf_tdata (abfd)->elf_data_symbol = elf_data_symbol;
4691
4692 elf_data_section->symbol = elf_data_symbol;
4693 elf_data_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_data_symbol;
4694
4695 elf_data_section->name = ".data";
4696 elf_data_section->flags = SEC_NO_FLAGS;
4697 elf_data_section->output_section = NULL;
4698 elf_data_section->owner = abfd;
4699 elf_data_symbol->name = ".data";
4700 elf_data_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4701 elf_data_symbol->section = elf_data_section;
252b5132
RH
4702 }
4703 /* This code used to do *secp = bfd_und_section_ptr if
4704 info->shared. I don't know why, and that doesn't make sense,
4705 so I took it out. */
b305ef96 4706 *secp = elf_tdata (abfd)->elf_data_section;
252b5132
RH
4707 break;
4708
4709 case SHN_MIPS_SUNDEFINED:
4710 *secp = bfd_und_section_ptr;
4711 break;
4712 }
4713
4714 if (SGI_COMPAT (abfd)
4715 && ! info->shared
4716 && info->hash->creator == abfd->xvec
4717 && strcmp (*namep, "__rld_obj_head") == 0)
4718 {
4719 struct elf_link_hash_entry *h;
4720
4721 /* Mark __rld_obj_head as dynamic. */
4722 h = NULL;
4723 if (! (_bfd_generic_link_add_one_symbol
4724 (info, abfd, *namep, BSF_GLOBAL, *secp,
4725 (bfd_vma) *valp, (const char *) NULL, false,
4726 get_elf_backend_data (abfd)->collect,
4727 (struct bfd_link_hash_entry **) &h)))
4728 return false;
be3ccd9c 4729 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
4730 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4731 h->type = STT_OBJECT;
4732
4733 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
4734 return false;
4735
4736 mips_elf_hash_table (info)->use_rld_obj_head = true;
4737 }
4738
4739 /* If this is a mips16 text symbol, add 1 to the value to make it
4740 odd. This will cause something like .word SYM to come up with
4741 the right value when it is loaded into the PC. */
4742 if (sym->st_other == STO_MIPS16)
4743 ++*valp;
4744
4745 return true;
4746}
4747
4748/* Structure used to pass information to mips_elf_output_extsym. */
4749
38b1a46c
NC
4750struct extsym_info
4751{
252b5132
RH
4752 bfd *abfd;
4753 struct bfd_link_info *info;
4754 struct ecoff_debug_info *debug;
4755 const struct ecoff_debug_swap *swap;
4756 boolean failed;
4757};
4758
4759/* This routine is used to write out ECOFF debugging external symbol
4760 information. It is called via mips_elf_link_hash_traverse. The
4761 ECOFF external symbol information must match the ELF external
4762 symbol information. Unfortunately, at this point we don't know
4763 whether a symbol is required by reloc information, so the two
4764 tables may wind up being different. We must sort out the external
4765 symbol information before we can set the final size of the .mdebug
4766 section, and we must set the size of the .mdebug section before we
4767 can relocate any sections, and we can't know which symbols are
4768 required by relocation until we relocate the sections.
4769 Fortunately, it is relatively unlikely that any symbol will be
4770 stripped but required by a reloc. In particular, it can not happen
4771 when generating a final executable. */
4772
4773static boolean
4774mips_elf_output_extsym (h, data)
4775 struct mips_elf_link_hash_entry *h;
4776 PTR data;
4777{
4778 struct extsym_info *einfo = (struct extsym_info *) data;
4779 boolean strip;
4780 asection *sec, *output_section;
4781
e92d460e
AM
4782 if (h->root.root.type == bfd_link_hash_warning)
4783 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
4784
252b5132
RH
4785 if (h->root.indx == -2)
4786 strip = false;
4787 else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4788 || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
4789 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4790 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
4791 strip = true;
4792 else if (einfo->info->strip == strip_all
4793 || (einfo->info->strip == strip_some
4794 && bfd_hash_lookup (einfo->info->keep_hash,
4795 h->root.root.root.string,
4796 false, false) == NULL))
4797 strip = true;
4798 else
4799 strip = false;
4800
4801 if (strip)
4802 return true;
4803
4804 if (h->esym.ifd == -2)
4805 {
4806 h->esym.jmptbl = 0;
4807 h->esym.cobol_main = 0;
4808 h->esym.weakext = 0;
4809 h->esym.reserved = 0;
4810 h->esym.ifd = ifdNil;
4811 h->esym.asym.value = 0;
4812 h->esym.asym.st = stGlobal;
4813
f7cb7d68 4814 if (h->root.root.type == bfd_link_hash_undefined
be3ccd9c 4815 || h->root.root.type == bfd_link_hash_undefweak)
252b5132
RH
4816 {
4817 const char *name;
4818
4819 /* Use undefined class. Also, set class and type for some
4820 special symbols. */
4821 name = h->root.root.root.string;
4822 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
4823 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
4824 {
4825 h->esym.asym.sc = scData;
4826 h->esym.asym.st = stLabel;
4827 h->esym.asym.value = 0;
4828 }
4829 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
4830 {
4831 h->esym.asym.sc = scAbs;
4832 h->esym.asym.st = stLabel;
4833 h->esym.asym.value =
4834 mips_elf_hash_table (einfo->info)->procedure_count;
4835 }
4836 else if (strcmp (name, "_gp_disp") == 0)
4837 {
4838 h->esym.asym.sc = scAbs;
4839 h->esym.asym.st = stLabel;
4840 h->esym.asym.value = elf_gp (einfo->abfd);
4841 }
4842 else
4843 h->esym.asym.sc = scUndefined;
4844 }
4845 else if (h->root.root.type != bfd_link_hash_defined
4846 && h->root.root.type != bfd_link_hash_defweak)
4847 h->esym.asym.sc = scAbs;
4848 else
4849 {
4850 const char *name;
4851
4852 sec = h->root.root.u.def.section;
4853 output_section = sec->output_section;
4854
4855 /* When making a shared library and symbol h is the one from
4856 the another shared library, OUTPUT_SECTION may be null. */
4857 if (output_section == NULL)
4858 h->esym.asym.sc = scUndefined;
4859 else
4860 {
4861 name = bfd_section_name (output_section->owner, output_section);
4862
4863 if (strcmp (name, ".text") == 0)
4864 h->esym.asym.sc = scText;
4865 else if (strcmp (name, ".data") == 0)
4866 h->esym.asym.sc = scData;
4867 else if (strcmp (name, ".sdata") == 0)
4868 h->esym.asym.sc = scSData;
4869 else if (strcmp (name, ".rodata") == 0
4870 || strcmp (name, ".rdata") == 0)
4871 h->esym.asym.sc = scRData;
4872 else if (strcmp (name, ".bss") == 0)
4873 h->esym.asym.sc = scBss;
4874 else if (strcmp (name, ".sbss") == 0)
4875 h->esym.asym.sc = scSBss;
4876 else if (strcmp (name, ".init") == 0)
4877 h->esym.asym.sc = scInit;
4878 else if (strcmp (name, ".fini") == 0)
4879 h->esym.asym.sc = scFini;
4880 else
4881 h->esym.asym.sc = scAbs;
4882 }
4883 }
4884
4885 h->esym.asym.reserved = 0;
4886 h->esym.asym.index = indexNil;
4887 }
4888
4889 if (h->root.root.type == bfd_link_hash_common)
4890 h->esym.asym.value = h->root.root.u.c.size;
4891 else if (h->root.root.type == bfd_link_hash_defined
4892 || h->root.root.type == bfd_link_hash_defweak)
4893 {
4894 if (h->esym.asym.sc == scCommon)
4895 h->esym.asym.sc = scBss;
4896 else if (h->esym.asym.sc == scSCommon)
4897 h->esym.asym.sc = scSBss;
4898
4899 sec = h->root.root.u.def.section;
4900 output_section = sec->output_section;
4901 if (output_section != NULL)
4902 h->esym.asym.value = (h->root.root.u.def.value
4903 + sec->output_offset
4904 + output_section->vma);
4905 else
4906 h->esym.asym.value = 0;
4907 }
4908 else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4909 {
9117d219
NC
4910 struct mips_elf_link_hash_entry *hd = h;
4911 boolean no_fn_stub = h->no_fn_stub;
4912
4913 while (hd->root.root.type == bfd_link_hash_indirect)
252b5132 4914 {
9117d219
NC
4915 hd = (struct mips_elf_link_hash_entry *)h->root.root.u.i.link;
4916 no_fn_stub = no_fn_stub || hd->no_fn_stub;
252b5132 4917 }
9117d219
NC
4918
4919 if (!no_fn_stub)
4920 {
4921 /* Set type and value for a symbol with a function stub. */
4922 h->esym.asym.st = stProc;
4923 sec = hd->root.root.u.def.section;
4924 if (sec == NULL)
4925 h->esym.asym.value = 0;
4926 else
4927 {
4928 output_section = sec->output_section;
4929 if (output_section != NULL)
4930 h->esym.asym.value = (hd->root.plt.offset
4931 + sec->output_offset
4932 + output_section->vma);
4933 else
4934 h->esym.asym.value = 0;
4935 }
252b5132 4936#if 0 /* FIXME? */
9117d219 4937 h->esym.ifd = 0;
252b5132 4938#endif
9117d219 4939 }
252b5132
RH
4940 }
4941
4942 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
4943 h->root.root.root.string,
4944 &h->esym))
4945 {
4946 einfo->failed = true;
4947 return false;
4948 }
4949
4950 return true;
4951}
4952
4953/* Create a runtime procedure table from the .mdebug section. */
4954
4955static boolean
4956mips_elf_create_procedure_table (handle, abfd, info, s, debug)
4957 PTR handle;
4958 bfd *abfd;
4959 struct bfd_link_info *info;
4960 asection *s;
4961 struct ecoff_debug_info *debug;
4962{
4963 const struct ecoff_debug_swap *swap;
4964 HDRR *hdr = &debug->symbolic_header;
4965 RPDR *rpdr, *rp;
4966 struct rpdr_ext *erp;
4967 PTR rtproc;
4968 struct pdr_ext *epdr;
4969 struct sym_ext *esym;
4970 char *ss, **sv;
4971 char *str;
dc810e39
AM
4972 bfd_size_type size;
4973 bfd_size_type count;
252b5132
RH
4974 unsigned long sindex;
4975 unsigned long i;
4976 PDR pdr;
4977 SYMR sym;
4978 const char *no_name_func = _("static procedure (no name)");
4979
4980 epdr = NULL;
4981 rpdr = NULL;
4982 esym = NULL;
4983 ss = NULL;
4984 sv = NULL;
4985
4986 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4987
4988 sindex = strlen (no_name_func) + 1;
4989 count = hdr->ipdMax;
4990 if (count > 0)
4991 {
4992 size = swap->external_pdr_size;
4993
4994 epdr = (struct pdr_ext *) bfd_malloc (size * count);
4995 if (epdr == NULL)
4996 goto error_return;
4997
4998 if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr))
4999 goto error_return;
5000
5001 size = sizeof (RPDR);
5002 rp = rpdr = (RPDR *) bfd_malloc (size * count);
5003 if (rpdr == NULL)
5004 goto error_return;
5005
dc810e39
AM
5006 size = sizeof (char *);
5007 sv = (char **) bfd_malloc (size * count);
252b5132
RH
5008 if (sv == NULL)
5009 goto error_return;
5010
5011 count = hdr->isymMax;
5012 size = swap->external_sym_size;
5013 esym = (struct sym_ext *) bfd_malloc (size * count);
5014 if (esym == NULL)
5015 goto error_return;
5016
5017 if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym))
5018 goto error_return;
5019
5020 count = hdr->issMax;
5021 ss = (char *) bfd_malloc (count);
5022 if (ss == NULL)
5023 goto error_return;
5024 if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss))
5025 goto error_return;
5026
5027 count = hdr->ipdMax;
dc810e39 5028 for (i = 0; i < (unsigned long) count; i++, rp++)
252b5132
RH
5029 {
5030 (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr);
5031 (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym);
5032 rp->adr = sym.value;
5033 rp->regmask = pdr.regmask;
5034 rp->regoffset = pdr.regoffset;
5035 rp->fregmask = pdr.fregmask;
5036 rp->fregoffset = pdr.fregoffset;
5037 rp->frameoffset = pdr.frameoffset;
5038 rp->framereg = pdr.framereg;
5039 rp->pcreg = pdr.pcreg;
5040 rp->irpss = sindex;
5041 sv[i] = ss + sym.iss;
5042 sindex += strlen (sv[i]) + 1;
5043 }
5044 }
5045
5046 size = sizeof (struct rpdr_ext) * (count + 2) + sindex;
5047 size = BFD_ALIGN (size, 16);
5048 rtproc = (PTR) bfd_alloc (abfd, size);
5049 if (rtproc == NULL)
5050 {
5051 mips_elf_hash_table (info)->procedure_count = 0;
5052 goto error_return;
5053 }
5054
5055 mips_elf_hash_table (info)->procedure_count = count + 2;
5056
5057 erp = (struct rpdr_ext *) rtproc;
5058 memset (erp, 0, sizeof (struct rpdr_ext));
5059 erp++;
5060 str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2);
5061 strcpy (str, no_name_func);
5062 str += strlen (no_name_func) + 1;
5063 for (i = 0; i < count; i++)
5064 {
5065 ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i);
5066 strcpy (str, sv[i]);
5067 str += strlen (sv[i]) + 1;
5068 }
dc810e39 5069 ECOFF_PUT_OFF (abfd, -1, (erp + count)->p_adr);
252b5132
RH
5070
5071 /* Set the size and contents of .rtproc section. */
5072 s->_raw_size = size;
5073 s->contents = (bfd_byte *) rtproc;
5074
5075 /* Skip this section later on (I don't think this currently
5076 matters, but someday it might). */
5077 s->link_order_head = (struct bfd_link_order *) NULL;
5078
5079 if (epdr != NULL)
5080 free (epdr);
5081 if (rpdr != NULL)
5082 free (rpdr);
5083 if (esym != NULL)
5084 free (esym);
5085 if (ss != NULL)
5086 free (ss);
5087 if (sv != NULL)
5088 free (sv);
5089
5090 return true;
5091
5092 error_return:
5093 if (epdr != NULL)
5094 free (epdr);
5095 if (rpdr != NULL)
5096 free (rpdr);
5097 if (esym != NULL)
5098 free (esym);
5099 if (ss != NULL)
5100 free (ss);
5101 if (sv != NULL)
5102 free (sv);
5103 return false;
5104}
5105
5106/* A comparison routine used to sort .gptab entries. */
5107
5108static int
5109gptab_compare (p1, p2)
5110 const PTR p1;
5111 const PTR p2;
5112{
5113 const Elf32_gptab *a1 = (const Elf32_gptab *) p1;
5114 const Elf32_gptab *a2 = (const Elf32_gptab *) p2;
5115
5116 return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value;
5117}
5118
5119/* We need to use a special link routine to handle the .reginfo and
5120 the .mdebug sections. We need to merge all instances of these
5121 sections together, not write them all out sequentially. */
5122
103186c6
MM
5123boolean
5124_bfd_mips_elf_final_link (abfd, info)
252b5132
RH
5125 bfd *abfd;
5126 struct bfd_link_info *info;
5127{
5128 asection **secpp;
5129 asection *o;
5130 struct bfd_link_order *p;
5131 asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
5132 asection *rtproc_sec;
5133 Elf32_RegInfo reginfo;
5134 struct ecoff_debug_info debug;
5135 const struct ecoff_debug_swap *swap
5136 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
5137 HDRR *symhdr = &debug.symbolic_header;
5138 PTR mdebug_handle = NULL;
f7cb7d68
UC
5139 asection *s;
5140 EXTR esym;
f7cb7d68 5141 unsigned int i;
dc810e39
AM
5142 bfd_size_type amt;
5143
5144 static const char * const secname[] =
38b1a46c 5145 {
be3ccd9c
KH
5146 ".text", ".init", ".fini", ".data",
5147 ".rodata", ".sdata", ".sbss", ".bss"
5148 };
38b1a46c
NC
5149 static const int sc[] =
5150 {
be3ccd9c
KH
5151 scText, scInit, scFini, scData,
5152 scRData, scSData, scSBss, scBss
5153 };
252b5132 5154
303f629d
MM
5155 /* If all the things we linked together were PIC, but we're
5156 producing an executable (rather than a shared object), then the
5157 resulting file is CPIC (i.e., it calls PIC code.) */
0dda5f7a
ILT
5158 if (!info->shared
5159 && !info->relocateable
5160 && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
252b5132 5161 {
303f629d
MM
5162 elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
5163 elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
252b5132
RH
5164 }
5165
b3be9b46
RH
5166 /* We'd carefully arranged the dynamic symbol indices, and then the
5167 generic size_dynamic_sections renumbered them out from under us.
5168 Rather than trying somehow to prevent the renumbering, just do
5169 the sort again. */
441d6d79 5170 if (elf_hash_table (info)->dynamic_sections_created)
b3be9b46
RH
5171 {
5172 bfd *dynobj;
5173 asection *got;
5174 struct mips_got_info *g;
5175
435394bf
MM
5176 /* When we resort, we must tell mips_elf_sort_hash_table what
5177 the lowest index it may use is. That's the number of section
5178 symbols we're going to add. The generic ELF linker only
5179 adds these symbols when building a shared object. Note that
5180 we count the sections after (possibly) removing the .options
5181 section above. */
be3ccd9c 5182 if (!mips_elf_sort_hash_table (info, (info->shared
435394bf
MM
5183 ? bfd_count_sections (abfd) + 1
5184 : 1)))
be3ccd9c 5185 return false;
b3be9b46
RH
5186
5187 /* Make sure we didn't grow the global .got region. */
5188 dynobj = elf_hash_table (info)->dynobj;
5189 got = bfd_get_section_by_name (dynobj, ".got");
5190 g = (struct mips_got_info *) elf_section_data (got)->tdata;
5191
8b237a89
MM
5192 if (g->global_gotsym != NULL)
5193 BFD_ASSERT ((elf_hash_table (info)->dynsymcount
5194 - g->global_gotsym->dynindx)
5195 <= g->global_gotno);
b3be9b46
RH
5196 }
5197
303f629d
MM
5198 /* On IRIX5, we omit the .options section. On IRIX6, however, we
5199 include it, even though we don't process it quite right. (Some
5200 entries are supposed to be merged.) Empirically, we seem to be
5201 better off including it then not. */
f7cb7d68 5202 if (IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
303f629d
MM
5203 for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
5204 {
5205 if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
5206 {
5207 for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
5208 if (p->type == bfd_indirect_link_order)
be3ccd9c 5209 p->u.indirect.section->flags &= ~SEC_HAS_CONTENTS;
303f629d 5210 (*secpp)->link_order_head = NULL;
9e7b37b3 5211 bfd_section_list_remove (abfd, secpp);
303f629d 5212 --abfd->section_count;
be3ccd9c 5213
303f629d
MM
5214 break;
5215 }
5216 }
5217
252b5132
RH
5218 /* Get a value for the GP register. */
5219 if (elf_gp (abfd) == 0)
5220 {
5221 struct bfd_link_hash_entry *h;
5222
5223 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
5224 if (h != (struct bfd_link_hash_entry *) NULL
5225 && h->type == bfd_link_hash_defined)
5226 elf_gp (abfd) = (h->u.def.value
5227 + h->u.def.section->output_section->vma
5228 + h->u.def.section->output_offset);
0db63c18
MM
5229 else if (info->relocateable)
5230 {
5231 bfd_vma lo;
5232
5233 /* Find the GP-relative section with the lowest offset. */
5234 lo = (bfd_vma) -1;
5235 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
be3ccd9c 5236 if (o->vma < lo
0db63c18
MM
5237 && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
5238 lo = o->vma;
5239
5240 /* And calculate GP relative to that. */
5241 elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd);
5242 }
252b5132
RH
5243 else
5244 {
5245 /* If the relocate_section function needs to do a reloc
5246 involving the GP value, it should make a reloc_dangerous
5247 callback to warn that GP is not defined. */
5248 }
5249 }
5250
5251 /* Go through the sections and collect the .reginfo and .mdebug
5252 information. */
5253 reginfo_sec = NULL;
5254 mdebug_sec = NULL;
5255 gptab_data_sec = NULL;
5256 gptab_bss_sec = NULL;
5257 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5258 {
5259 if (strcmp (o->name, ".reginfo") == 0)
5260 {
5261 memset (&reginfo, 0, sizeof reginfo);
5262
5263 /* We have found the .reginfo section in the output file.
5264 Look through all the link_orders comprising it and merge
5265 the information together. */
5266 for (p = o->link_order_head;
5267 p != (struct bfd_link_order *) NULL;
5268 p = p->next)
5269 {
5270 asection *input_section;
5271 bfd *input_bfd;
5272 Elf32_External_RegInfo ext;
5273 Elf32_RegInfo sub;
5274
5275 if (p->type != bfd_indirect_link_order)
5276 {
fd96f80f 5277 if (p->type == bfd_data_link_order)
252b5132
RH
5278 continue;
5279 abort ();
5280 }
5281
5282 input_section = p->u.indirect.section;
5283 input_bfd = input_section->owner;
5284
5285 /* The linker emulation code has probably clobbered the
5286 size to be zero bytes. */
5287 if (input_section->_raw_size == 0)
5288 input_section->_raw_size = sizeof (Elf32_External_RegInfo);
5289
5290 if (! bfd_get_section_contents (input_bfd, input_section,
5291 (PTR) &ext,
5292 (file_ptr) 0,
dc810e39 5293 (bfd_size_type) sizeof ext))
252b5132
RH
5294 return false;
5295
5296 bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub);
5297
5298 reginfo.ri_gprmask |= sub.ri_gprmask;
5299 reginfo.ri_cprmask[0] |= sub.ri_cprmask[0];
5300 reginfo.ri_cprmask[1] |= sub.ri_cprmask[1];
5301 reginfo.ri_cprmask[2] |= sub.ri_cprmask[2];
5302 reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
5303
5304 /* ri_gp_value is set by the function
5305 mips_elf32_section_processing when the section is
5306 finally written out. */
5307
5308 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5309 elf_link_input_bfd ignores this section. */
be3ccd9c 5310 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5311 }
5312
5313 /* Size has been set in mips_elf_always_size_sections */
5314 BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo));
5315
5316 /* Skip this section later on (I don't think this currently
5317 matters, but someday it might). */
5318 o->link_order_head = (struct bfd_link_order *) NULL;
5319
5320 reginfo_sec = o;
5321 }
5322
5323 if (strcmp (o->name, ".mdebug") == 0)
5324 {
5325 struct extsym_info einfo;
dc810e39 5326 bfd_vma last;
252b5132
RH
5327
5328 /* We have found the .mdebug section in the output file.
5329 Look through all the link_orders comprising it and merge
5330 the information together. */
5331 symhdr->magic = swap->sym_magic;
5332 /* FIXME: What should the version stamp be? */
5333 symhdr->vstamp = 0;
5334 symhdr->ilineMax = 0;
5335 symhdr->cbLine = 0;
5336 symhdr->idnMax = 0;
5337 symhdr->ipdMax = 0;
5338 symhdr->isymMax = 0;
5339 symhdr->ioptMax = 0;
5340 symhdr->iauxMax = 0;
5341 symhdr->issMax = 0;
5342 symhdr->issExtMax = 0;
5343 symhdr->ifdMax = 0;
5344 symhdr->crfd = 0;
5345 symhdr->iextMax = 0;
5346
5347 /* We accumulate the debugging information itself in the
5348 debug_info structure. */
5349 debug.line = NULL;
5350 debug.external_dnr = NULL;
5351 debug.external_pdr = NULL;
5352 debug.external_sym = NULL;
5353 debug.external_opt = NULL;
5354 debug.external_aux = NULL;
5355 debug.ss = NULL;
5356 debug.ssext = debug.ssext_end = NULL;
5357 debug.external_fdr = NULL;
5358 debug.external_rfd = NULL;
5359 debug.external_ext = debug.external_ext_end = NULL;
5360
5361 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
5362 if (mdebug_handle == (PTR) NULL)
5363 return false;
5364
be3ccd9c
KH
5365 esym.jmptbl = 0;
5366 esym.cobol_main = 0;
5367 esym.weakext = 0;
5368 esym.reserved = 0;
5369 esym.ifd = ifdNil;
5370 esym.asym.iss = issNil;
5371 esym.asym.st = stLocal;
5372 esym.asym.reserved = 0;
5373 esym.asym.index = indexNil;
5374 last = 0;
dc810e39 5375 for (i = 0; i < sizeof (secname) / sizeof (secname[0]); i++)
be3ccd9c
KH
5376 {
5377 esym.asym.sc = sc[i];
dc810e39 5378 s = bfd_get_section_by_name (abfd, secname[i]);
be3ccd9c
KH
5379 if (s != NULL)
5380 {
5381 esym.asym.value = s->vma;
5382 last = s->vma + s->_raw_size;
5383 }
5384 else
5385 esym.asym.value = last;
5386 if (!bfd_ecoff_debug_one_external (abfd, &debug, swap,
dc810e39 5387 secname[i], &esym))
be3ccd9c
KH
5388 return false;
5389 }
252b5132
RH
5390
5391 for (p = o->link_order_head;
5392 p != (struct bfd_link_order *) NULL;
5393 p = p->next)
5394 {
5395 asection *input_section;
5396 bfd *input_bfd;
5397 const struct ecoff_debug_swap *input_swap;
5398 struct ecoff_debug_info input_debug;
5399 char *eraw_src;
5400 char *eraw_end;
5401
5402 if (p->type != bfd_indirect_link_order)
5403 {
fd96f80f 5404 if (p->type == bfd_data_link_order)
252b5132
RH
5405 continue;
5406 abort ();
5407 }
5408
5409 input_section = p->u.indirect.section;
5410 input_bfd = input_section->owner;
5411
5412 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
5413 || (get_elf_backend_data (input_bfd)
5414 ->elf_backend_ecoff_debug_swap) == NULL)
5415 {
5416 /* I don't know what a non MIPS ELF bfd would be
5417 doing with a .mdebug section, but I don't really
5418 want to deal with it. */
5419 continue;
5420 }
5421
5422 input_swap = (get_elf_backend_data (input_bfd)
5423 ->elf_backend_ecoff_debug_swap);
5424
5425 BFD_ASSERT (p->size == input_section->_raw_size);
5426
5427 /* The ECOFF linking code expects that we have already
5428 read in the debugging information and set up an
5429 ecoff_debug_info structure, so we do that now. */
5430 if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
5431 &input_debug))
5432 return false;
5433
5434 if (! (bfd_ecoff_debug_accumulate
5435 (mdebug_handle, abfd, &debug, swap, input_bfd,
5436 &input_debug, input_swap, info)))
5437 return false;
5438
5439 /* Loop through the external symbols. For each one with
5440 interesting information, try to find the symbol in
5441 the linker global hash table and save the information
5442 for the output external symbols. */
5443 eraw_src = input_debug.external_ext;
5444 eraw_end = (eraw_src
5445 + (input_debug.symbolic_header.iextMax
5446 * input_swap->external_ext_size));
5447 for (;
5448 eraw_src < eraw_end;
5449 eraw_src += input_swap->external_ext_size)
5450 {
5451 EXTR ext;
5452 const char *name;
5453 struct mips_elf_link_hash_entry *h;
5454
5455 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
5456 if (ext.asym.sc == scNil
5457 || ext.asym.sc == scUndefined
5458 || ext.asym.sc == scSUndefined)
5459 continue;
5460
5461 name = input_debug.ssext + ext.asym.iss;
5462 h = mips_elf_link_hash_lookup (mips_elf_hash_table (info),
5463 name, false, false, true);
5464 if (h == NULL || h->esym.ifd != -2)
5465 continue;
5466
5467 if (ext.ifd != -1)
5468 {
5469 BFD_ASSERT (ext.ifd
5470 < input_debug.symbolic_header.ifdMax);
5471 ext.ifd = input_debug.ifdmap[ext.ifd];
5472 }
5473
5474 h->esym = ext;
5475 }
5476
5477 /* Free up the information we just read. */
5478 free (input_debug.line);
5479 free (input_debug.external_dnr);
5480 free (input_debug.external_pdr);
5481 free (input_debug.external_sym);
5482 free (input_debug.external_opt);
5483 free (input_debug.external_aux);
5484 free (input_debug.ss);
5485 free (input_debug.ssext);
5486 free (input_debug.external_fdr);
5487 free (input_debug.external_rfd);
5488 free (input_debug.external_ext);
5489
5490 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5491 elf_link_input_bfd ignores this section. */
be3ccd9c 5492 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5493 }
5494
5495 if (SGI_COMPAT (abfd) && info->shared)
5496 {
5497 /* Create .rtproc section. */
5498 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5499 if (rtproc_sec == NULL)
5500 {
5501 flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
5502 | SEC_LINKER_CREATED | SEC_READONLY);
5503
5504 rtproc_sec = bfd_make_section (abfd, ".rtproc");
5505 if (rtproc_sec == NULL
5506 || ! bfd_set_section_flags (abfd, rtproc_sec, flags)
5507 || ! bfd_set_section_alignment (abfd, rtproc_sec, 4))
5508 return false;
5509 }
5510
5511 if (! mips_elf_create_procedure_table (mdebug_handle, abfd,
5512 info, rtproc_sec, &debug))
5513 return false;
5514 }
5515
5516 /* Build the external symbol information. */
5517 einfo.abfd = abfd;
5518 einfo.info = info;
5519 einfo.debug = &debug;
5520 einfo.swap = swap;
5521 einfo.failed = false;
5522 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
5523 mips_elf_output_extsym,
5524 (PTR) &einfo);
5525 if (einfo.failed)
5526 return false;
5527
5528 /* Set the size of the .mdebug section. */
5529 o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
5530
5531 /* Skip this section later on (I don't think this currently
5532 matters, but someday it might). */
5533 o->link_order_head = (struct bfd_link_order *) NULL;
5534
5535 mdebug_sec = o;
5536 }
5537
5538 if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
5539 {
5540 const char *subname;
5541 unsigned int c;
5542 Elf32_gptab *tab;
5543 Elf32_External_gptab *ext_tab;
dc810e39 5544 unsigned int j;
252b5132
RH
5545
5546 /* The .gptab.sdata and .gptab.sbss sections hold
5547 information describing how the small data area would
5548 change depending upon the -G switch. These sections
5549 not used in executables files. */
5550 if (! info->relocateable)
5551 {
252b5132
RH
5552 for (p = o->link_order_head;
5553 p != (struct bfd_link_order *) NULL;
5554 p = p->next)
5555 {
5556 asection *input_section;
5557
5558 if (p->type != bfd_indirect_link_order)
5559 {
fd96f80f 5560 if (p->type == bfd_data_link_order)
252b5132
RH
5561 continue;
5562 abort ();
5563 }
5564
5565 input_section = p->u.indirect.section;
5566
5567 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5568 elf_link_input_bfd ignores this section. */
be3ccd9c 5569 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5570 }
5571
5572 /* Skip this section later on (I don't think this
5573 currently matters, but someday it might). */
5574 o->link_order_head = (struct bfd_link_order *) NULL;
5575
5576 /* Really remove the section. */
5577 for (secpp = &abfd->sections;
5578 *secpp != o;
5579 secpp = &(*secpp)->next)
5580 ;
9e7b37b3 5581 bfd_section_list_remove (abfd, secpp);
252b5132
RH
5582 --abfd->section_count;
5583
5584 continue;
5585 }
5586
5587 /* There is one gptab for initialized data, and one for
5588 uninitialized data. */
5589 if (strcmp (o->name, ".gptab.sdata") == 0)
5590 gptab_data_sec = o;
5591 else if (strcmp (o->name, ".gptab.sbss") == 0)
5592 gptab_bss_sec = o;
5593 else
5594 {
5595 (*_bfd_error_handler)
5596 (_("%s: illegal section name `%s'"),
5597 bfd_get_filename (abfd), o->name);
5598 bfd_set_error (bfd_error_nonrepresentable_section);
5599 return false;
5600 }
5601
5602 /* The linker script always combines .gptab.data and
5603 .gptab.sdata into .gptab.sdata, and likewise for
5604 .gptab.bss and .gptab.sbss. It is possible that there is
5605 no .sdata or .sbss section in the output file, in which
5606 case we must change the name of the output section. */
5607 subname = o->name + sizeof ".gptab" - 1;
5608 if (bfd_get_section_by_name (abfd, subname) == NULL)
5609 {
5610 if (o == gptab_data_sec)
5611 o->name = ".gptab.data";
5612 else
5613 o->name = ".gptab.bss";
5614 subname = o->name + sizeof ".gptab" - 1;
5615 BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
5616 }
5617
5618 /* Set up the first entry. */
5619 c = 1;
dc810e39
AM
5620 amt = c * sizeof (Elf32_gptab);
5621 tab = (Elf32_gptab *) bfd_malloc (amt);
252b5132
RH
5622 if (tab == NULL)
5623 return false;
5624 tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
5625 tab[0].gt_header.gt_unused = 0;
5626
5627 /* Combine the input sections. */
5628 for (p = o->link_order_head;
5629 p != (struct bfd_link_order *) NULL;
5630 p = p->next)
5631 {
5632 asection *input_section;
5633 bfd *input_bfd;
5634 bfd_size_type size;
5635 unsigned long last;
5636 bfd_size_type gpentry;
5637
5638 if (p->type != bfd_indirect_link_order)
5639 {
fd96f80f 5640 if (p->type == bfd_data_link_order)
252b5132
RH
5641 continue;
5642 abort ();
5643 }
5644
5645 input_section = p->u.indirect.section;
5646 input_bfd = input_section->owner;
5647
5648 /* Combine the gptab entries for this input section one
5649 by one. We know that the input gptab entries are
5650 sorted by ascending -G value. */
5651 size = bfd_section_size (input_bfd, input_section);
5652 last = 0;
5653 for (gpentry = sizeof (Elf32_External_gptab);
5654 gpentry < size;
5655 gpentry += sizeof (Elf32_External_gptab))
5656 {
5657 Elf32_External_gptab ext_gptab;
5658 Elf32_gptab int_gptab;
5659 unsigned long val;
5660 unsigned long add;
5661 boolean exact;
5662 unsigned int look;
5663
5664 if (! (bfd_get_section_contents
5665 (input_bfd, input_section, (PTR) &ext_gptab,
dc810e39
AM
5666 (file_ptr) gpentry,
5667 (bfd_size_type) sizeof (Elf32_External_gptab))))
252b5132
RH
5668 {
5669 free (tab);
5670 return false;
5671 }
5672
5673 bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab,
5674 &int_gptab);
5675 val = int_gptab.gt_entry.gt_g_value;
5676 add = int_gptab.gt_entry.gt_bytes - last;
5677
5678 exact = false;
5679 for (look = 1; look < c; look++)
5680 {
5681 if (tab[look].gt_entry.gt_g_value >= val)
5682 tab[look].gt_entry.gt_bytes += add;
5683
5684 if (tab[look].gt_entry.gt_g_value == val)
5685 exact = true;
5686 }
5687
5688 if (! exact)
5689 {
5690 Elf32_gptab *new_tab;
5691 unsigned int max;
5692
5693 /* We need a new table entry. */
dc810e39
AM
5694 amt = (bfd_size_type) (c + 1) * sizeof (Elf32_gptab);
5695 new_tab = (Elf32_gptab *) bfd_realloc ((PTR) tab, amt);
252b5132
RH
5696 if (new_tab == NULL)
5697 {
5698 free (tab);
5699 return false;
5700 }
5701 tab = new_tab;
5702 tab[c].gt_entry.gt_g_value = val;
5703 tab[c].gt_entry.gt_bytes = add;
5704
5705 /* Merge in the size for the next smallest -G
5706 value, since that will be implied by this new
5707 value. */
5708 max = 0;
5709 for (look = 1; look < c; look++)
5710 {
5711 if (tab[look].gt_entry.gt_g_value < val
5712 && (max == 0
5713 || (tab[look].gt_entry.gt_g_value
5714 > tab[max].gt_entry.gt_g_value)))
5715 max = look;
5716 }
5717 if (max != 0)
5718 tab[c].gt_entry.gt_bytes +=
5719 tab[max].gt_entry.gt_bytes;
5720
5721 ++c;
5722 }
5723
5724 last = int_gptab.gt_entry.gt_bytes;
5725 }
5726
5727 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5728 elf_link_input_bfd ignores this section. */
be3ccd9c 5729 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5730 }
5731
5732 /* The table must be sorted by -G value. */
5733 if (c > 2)
5734 qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
5735
5736 /* Swap out the table. */
dc810e39
AM
5737 amt = (bfd_size_type) c * sizeof (Elf32_External_gptab);
5738 ext_tab = (Elf32_External_gptab *) bfd_alloc (abfd, amt);
252b5132
RH
5739 if (ext_tab == NULL)
5740 {
5741 free (tab);
5742 return false;
5743 }
5744
dc810e39
AM
5745 for (j = 0; j < c; j++)
5746 bfd_mips_elf32_swap_gptab_out (abfd, tab + j, ext_tab + j);
252b5132
RH
5747 free (tab);
5748
5749 o->_raw_size = c * sizeof (Elf32_External_gptab);
5750 o->contents = (bfd_byte *) ext_tab;
5751
5752 /* Skip this section later on (I don't think this currently
5753 matters, but someday it might). */
5754 o->link_order_head = (struct bfd_link_order *) NULL;
5755 }
5756 }
5757
5758 /* Invoke the regular ELF backend linker to do all the work. */
9ebbd33e
MM
5759 if (ABI_64_P (abfd))
5760 {
5761#ifdef BFD64
5762 if (!bfd_elf64_bfd_final_link (abfd, info))
5763 return false;
5764#else
5765 abort ();
103186c6 5766 return false;
9ebbd33e
MM
5767#endif /* BFD64 */
5768 }
5769 else if (!bfd_elf32_bfd_final_link (abfd, info))
5770 return false;
252b5132
RH
5771
5772 /* Now write out the computed sections. */
5773
5774 if (reginfo_sec != (asection *) NULL)
5775 {
5776 Elf32_External_RegInfo ext;
5777
5778 bfd_mips_elf32_swap_reginfo_out (abfd, &reginfo, &ext);
5779 if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext,
dc810e39 5780 (file_ptr) 0, (bfd_size_type) sizeof ext))
252b5132
RH
5781 return false;
5782 }
5783
5784 if (mdebug_sec != (asection *) NULL)
5785 {
5786 BFD_ASSERT (abfd->output_has_begun);
5787 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5788 swap, info,
5789 mdebug_sec->filepos))
5790 return false;
5791
5792 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5793 }
5794
5795 if (gptab_data_sec != (asection *) NULL)
5796 {
5797 if (! bfd_set_section_contents (abfd, gptab_data_sec,
5798 gptab_data_sec->contents,
5799 (file_ptr) 0,
5800 gptab_data_sec->_raw_size))
5801 return false;
5802 }
5803
5804 if (gptab_bss_sec != (asection *) NULL)
5805 {
5806 if (! bfd_set_section_contents (abfd, gptab_bss_sec,
5807 gptab_bss_sec->contents,
5808 (file_ptr) 0,
5809 gptab_bss_sec->_raw_size))
5810 return false;
5811 }
5812
5813 if (SGI_COMPAT (abfd))
5814 {
5815 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5816 if (rtproc_sec != NULL)
5817 {
5818 if (! bfd_set_section_contents (abfd, rtproc_sec,
5819 rtproc_sec->contents,
5820 (file_ptr) 0,
5821 rtproc_sec->_raw_size))
5822 return false;
5823 }
5824 }
5825
5826 return true;
5827}
5828
adb76a3e
UC
5829/* This function is called via qsort() to sort the dynamic relocation
5830 entries by increasing r_symndx value. */
5831
5832static int
be3ccd9c
KH
5833sort_dynamic_relocs (arg1, arg2)
5834 const PTR arg1;
5835 const PTR arg2;
adb76a3e
UC
5836{
5837 const Elf32_External_Rel *ext_reloc1 = (const Elf32_External_Rel *) arg1;
5838 const Elf32_External_Rel *ext_reloc2 = (const Elf32_External_Rel *) arg2;
5839
5840 Elf_Internal_Rel int_reloc1;
5841 Elf_Internal_Rel int_reloc2;
5842
be3ccd9c
KH
5843 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc1, &int_reloc1);
5844 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc2, &int_reloc2);
adb76a3e 5845
be3ccd9c 5846 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
adb76a3e
UC
5847}
5848
7403cb63 5849/* Returns the GOT section for ABFD. */
252b5132 5850
7403cb63
MM
5851static asection *
5852mips_elf_got_section (abfd)
5853 bfd *abfd;
252b5132 5854{
7403cb63
MM
5855 return bfd_get_section_by_name (abfd, ".got");
5856}
5857
5858/* Returns the GOT information associated with the link indicated by
be3ccd9c 5859 INFO. If SGOTP is non-NULL, it is filled in with the GOT
7403cb63
MM
5860 section. */
5861
5862static struct mips_got_info *
5863mips_elf_got_info (abfd, sgotp)
5864 bfd *abfd;
5865 asection **sgotp;
5866{
5867 asection *sgot;
252b5132
RH
5868 struct mips_got_info *g;
5869
7403cb63
MM
5870 sgot = mips_elf_got_section (abfd);
5871 BFD_ASSERT (sgot != NULL);
5872 BFD_ASSERT (elf_section_data (sgot) != NULL);
5873 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
5874 BFD_ASSERT (g != NULL);
252b5132 5875
7403cb63
MM
5876 if (sgotp)
5877 *sgotp = sgot;
5878 return g;
5879}
252b5132 5880
6387d602
ILT
5881/* Return whether a relocation is against a local symbol. */
5882
5883static boolean
b305ef96
UC
5884mips_elf_local_relocation_p (input_bfd, relocation, local_sections,
5885 check_forced)
6387d602
ILT
5886 bfd *input_bfd;
5887 const Elf_Internal_Rela *relocation;
5888 asection **local_sections;
b305ef96 5889 boolean check_forced;
6387d602
ILT
5890{
5891 unsigned long r_symndx;
5892 Elf_Internal_Shdr *symtab_hdr;
be3ccd9c 5893 struct mips_elf_link_hash_entry *h;
b305ef96 5894 size_t extsymoff;
6387d602
ILT
5895
5896 r_symndx = ELF32_R_SYM (relocation->r_info);
5897 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
b305ef96
UC
5898 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
5899
5900 if (r_symndx < extsymoff)
5901 return true;
5902 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
5903 return true;
5904
5905 if (check_forced)
6387d602 5906 {
be3ccd9c 5907 /* Look up the hash table to check whether the symbol
b305ef96 5908 was forced local. */
be3ccd9c
KH
5909 h = (struct mips_elf_link_hash_entry *)
5910 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
5911 /* Find the real hash-table entry for this symbol. */
5912 while (h->root.root.type == bfd_link_hash_indirect
b305ef96 5913 || h->root.root.type == bfd_link_hash_warning)
be3ccd9c
KH
5914 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
5915 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
5916 return true;
6387d602 5917 }
b305ef96
UC
5918
5919 return false;
6387d602
ILT
5920}
5921
7403cb63 5922/* Sign-extend VALUE, which has the indicated number of BITS. */
252b5132 5923
7403cb63
MM
5924static bfd_vma
5925mips_elf_sign_extend (value, bits)
5926 bfd_vma value;
5927 int bits;
5928{
be3ccd9c 5929 if (value & ((bfd_vma) 1 << (bits - 1)))
7403cb63 5930 /* VALUE is negative. */
be3ccd9c
KH
5931 value |= ((bfd_vma) - 1) << bits;
5932
7403cb63
MM
5933 return value;
5934}
252b5132 5935
7403cb63
MM
5936/* Return non-zero if the indicated VALUE has overflowed the maximum
5937 range expressable by a signed number with the indicated number of
5938 BITS. */
252b5132 5939
7403cb63
MM
5940static boolean
5941mips_elf_overflow_p (value, bits)
5942 bfd_vma value;
5943 int bits;
5944{
5945 bfd_signed_vma svalue = (bfd_signed_vma) value;
252b5132 5946
7403cb63
MM
5947 if (svalue > (1 << (bits - 1)) - 1)
5948 /* The value is too big. */
5949 return true;
5950 else if (svalue < -(1 << (bits - 1)))
5951 /* The value is too small. */
5952 return true;
be3ccd9c 5953
7403cb63
MM
5954 /* All is well. */
5955 return false;
5956}
252b5132 5957
7403cb63 5958/* Calculate the %high function. */
252b5132 5959
7403cb63
MM
5960static bfd_vma
5961mips_elf_high (value)
5962 bfd_vma value;
5963{
5964 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
5965}
252b5132 5966
7403cb63
MM
5967/* Calculate the %higher function. */
5968
5969static bfd_vma
5970mips_elf_higher (value)
5f771d47 5971 bfd_vma value ATTRIBUTE_UNUSED;
7403cb63
MM
5972{
5973#ifdef BFD64
5974 return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
5975#else
5976 abort ();
5977 return (bfd_vma) -1;
5978#endif
5979}
5980
5981/* Calculate the %highest function. */
5982
be3ccd9c 5983static bfd_vma
7403cb63 5984mips_elf_highest (value)
5f771d47 5985 bfd_vma value ATTRIBUTE_UNUSED;
7403cb63
MM
5986{
5987#ifdef BFD64
0af99795 5988 return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff;
7403cb63
MM
5989#else
5990 abort ();
5991 return (bfd_vma) -1;
5992#endif
5993}
5994
5995/* Returns the GOT index for the global symbol indicated by H. */
5996
be3ccd9c 5997static bfd_vma
7403cb63
MM
5998mips_elf_global_got_index (abfd, h)
5999 bfd *abfd;
6000 struct elf_link_hash_entry *h;
6001{
6002 bfd_vma index;
6003 asection *sgot;
6004 struct mips_got_info *g;
6005
6006 g = mips_elf_got_info (abfd, &sgot);
6007
6008 /* Once we determine the global GOT entry with the lowest dynamic
6009 symbol table index, we must put all dynamic symbols with greater
6010 indices into the GOT. That makes it easy to calculate the GOT
6011 offset. */
6012 BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
be3ccd9c 6013 index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
103186c6 6014 * MIPS_ELF_GOT_SIZE (abfd));
7403cb63
MM
6015 BFD_ASSERT (index < sgot->_raw_size);
6016
6017 return index;
6018}
6019
6020/* Returns the offset for the entry at the INDEXth position
6021 in the GOT. */
6022
6023static bfd_vma
6024mips_elf_got_offset_from_index (dynobj, output_bfd, index)
6025 bfd *dynobj;
6026 bfd *output_bfd;
6027 bfd_vma index;
6028{
6029 asection *sgot;
6030 bfd_vma gp;
7403cb63 6031
103186c6 6032 sgot = mips_elf_got_section (dynobj);
7403cb63 6033 gp = _bfd_get_gp_value (output_bfd);
be3ccd9c 6034 return (sgot->output_section->vma + sgot->output_offset + index -
7403cb63
MM
6035 gp);
6036}
6037
6038/* If H is a symbol that needs a global GOT entry, but has a dynamic
6039 symbol table index lower than any we've seen to date, record it for
6040 posterity. */
6041
6042static boolean
6043mips_elf_record_global_got_symbol (h, info, g)
6044 struct elf_link_hash_entry *h;
6045 struct bfd_link_info *info;
5f771d47 6046 struct mips_got_info *g ATTRIBUTE_UNUSED;
7403cb63
MM
6047{
6048 /* A global symbol in the GOT must also be in the dynamic symbol
6049 table. */
6050 if (h->dynindx == -1
6051 && !bfd_elf32_link_record_dynamic_symbol (info, h))
6052 return false;
be3ccd9c 6053
3a6b8597 6054 /* If we've already marked this entry as needing GOT space, we don't
7403cb63 6055 need to do it again. */
3a6b8597 6056 if (h->got.offset != (bfd_vma) -1)
7403cb63
MM
6057 return true;
6058
6059 /* By setting this to a value other than -1, we are indicating that
3a6b8597
AM
6060 there needs to be a GOT entry for H. Avoid using zero, as the
6061 generic ELF copy_indirect_symbol tests for <= 0. */
6062 h->got.offset = 1;
7403cb63
MM
6063
6064 return true;
6065}
6066
6067/* This structure is passed to mips_elf_sort_hash_table_f when sorting
6068 the dynamic symbols. */
be3ccd9c 6069
38b1a46c
NC
6070struct mips_elf_hash_sort_data
6071{
7403cb63
MM
6072 /* The symbol in the global GOT with the lowest dynamic symbol table
6073 index. */
6074 struct elf_link_hash_entry *low;
6075 /* The least dynamic symbol table index corresponding to a symbol
6076 with a GOT entry. */
6077 long min_got_dynindx;
6078 /* The greatest dynamic symbol table index not corresponding to a
6079 symbol without a GOT entry. */
6080 long max_non_got_dynindx;
6081};
6082
6083/* If H needs a GOT entry, assign it the highest available dynamic
be3ccd9c 6084 index. Otherwise, assign it the lowest available dynamic
7403cb63
MM
6085 index. */
6086
6087static boolean
6088mips_elf_sort_hash_table_f (h, data)
6089 struct mips_elf_link_hash_entry *h;
6090 PTR data;
6091{
be3ccd9c 6092 struct mips_elf_hash_sort_data *hsd
7403cb63
MM
6093 = (struct mips_elf_hash_sort_data *) data;
6094
e92d460e
AM
6095 if (h->root.root.type == bfd_link_hash_warning)
6096 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
6097
7403cb63
MM
6098 /* Symbols without dynamic symbol table entries aren't interesting
6099 at all. */
6100 if (h->root.dynindx == -1)
6101 return true;
6102
3a6b8597 6103 if (h->root.got.offset != 1)
7403cb63
MM
6104 h->root.dynindx = hsd->max_non_got_dynindx++;
6105 else
6106 {
6107 h->root.dynindx = --hsd->min_got_dynindx;
6108 hsd->low = (struct elf_link_hash_entry *) h;
6109 }
6110
6111 return true;
6112}
6113
6114/* Sort the dynamic symbol table so that symbols that need GOT entries
6115 appear towards the end. This reduces the amount of GOT space
b3be9b46
RH
6116 required. MAX_LOCAL is used to set the number of local symbols
6117 known to be in the dynamic symbol table. During
6118 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
6119 section symbols are added and the count is higher. */
7403cb63
MM
6120
6121static boolean
b3be9b46 6122mips_elf_sort_hash_table (info, max_local)
7403cb63 6123 struct bfd_link_info *info;
b3be9b46 6124 unsigned long max_local;
7403cb63
MM
6125{
6126 struct mips_elf_hash_sort_data hsd;
6127 struct mips_got_info *g;
6128 bfd *dynobj;
6129
6130 dynobj = elf_hash_table (info)->dynobj;
6131
6132 hsd.low = NULL;
6133 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
b3be9b46 6134 hsd.max_non_got_dynindx = max_local;
be3ccd9c
KH
6135 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
6136 elf_hash_table (info)),
6137 mips_elf_sort_hash_table_f,
7403cb63
MM
6138 &hsd);
6139
7e766c3b 6140 /* There should have been enough room in the symbol table to
7403cb63 6141 accomodate both the GOT and non-GOT symbols. */
b305ef96 6142 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
7403cb63
MM
6143
6144 /* Now we know which dynamic symbol has the lowest dynamic symbol
6145 table index in the GOT. */
6146 g = mips_elf_got_info (dynobj, NULL);
6147 g->global_gotsym = hsd.low;
6148
6149 return true;
6150}
6151
6152/* Create a local GOT entry for VALUE. Return the index of the entry,
6153 or -1 if it could not be created. */
6154
6155static bfd_vma
6156mips_elf_create_local_got_entry (abfd, g, sgot, value)
6157 bfd *abfd;
6158 struct mips_got_info *g;
6159 asection *sgot;
6160 bfd_vma value;
6161{
6162 if (g->assigned_gotno >= g->local_gotno)
6163 {
6164 /* We didn't allocate enough space in the GOT. */
6165 (*_bfd_error_handler)
6166 (_("not enough GOT space for local GOT entries"));
6167 bfd_set_error (bfd_error_bad_value);
6168 return (bfd_vma) -1;
6169 }
6170
103186c6 6171 MIPS_ELF_PUT_WORD (abfd, value,
be3ccd9c 6172 (sgot->contents
103186c6
MM
6173 + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno));
6174 return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
7403cb63
MM
6175}
6176
6177/* Returns the GOT offset at which the indicated address can be found.
6178 If there is not yet a GOT entry for this value, create one. Returns
6179 -1 if no satisfactory GOT offset can be found. */
6180
6181static bfd_vma
6182mips_elf_local_got_index (abfd, info, value)
6183 bfd *abfd;
6184 struct bfd_link_info *info;
6185 bfd_vma value;
6186{
6187 asection *sgot;
6188 struct mips_got_info *g;
6189 bfd_byte *entry;
6190
6191 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6192
6193 /* Look to see if we already have an appropriate entry. */
be3ccd9c
KH
6194 for (entry = (sgot->contents
6195 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
103186c6
MM
6196 entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
6197 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6198 {
103186c6 6199 bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry);
7403cb63
MM
6200 if (address == value)
6201 return entry - sgot->contents;
6202 }
6203
6204 return mips_elf_create_local_got_entry (abfd, g, sgot, value);
6205}
6206
6207/* Find a GOT entry that is within 32KB of the VALUE. These entries
6208 are supposed to be placed at small offsets in the GOT, i.e.,
6209 within 32KB of GP. Return the index into the GOT for this page,
6210 and store the offset from this entry to the desired address in
6211 OFFSETP, if it is non-NULL. */
6212
6213static bfd_vma
6214mips_elf_got_page (abfd, info, value, offsetp)
6215 bfd *abfd;
6216 struct bfd_link_info *info;
6217 bfd_vma value;
6218 bfd_vma *offsetp;
6219{
6220 asection *sgot;
6221 struct mips_got_info *g;
6222 bfd_byte *entry;
6223 bfd_byte *last_entry;
86033394 6224 bfd_vma index = 0;
7403cb63
MM
6225 bfd_vma address;
6226
6227 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6228
6229 /* Look to see if we aleady have an appropriate entry. */
103186c6 6230 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
be3ccd9c 6231 for (entry = (sgot->contents
103186c6 6232 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
7403cb63 6233 entry != last_entry;
103186c6 6234 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6235 {
103186c6
MM
6236 address = MIPS_ELF_GET_WORD (abfd, entry);
6237
7403cb63
MM
6238 if (!mips_elf_overflow_p (value - address, 16))
6239 {
6240 /* This entry will serve as the page pointer. We can add a
6241 16-bit number to it to get the actual address. */
6242 index = entry - sgot->contents;
6243 break;
252b5132 6244 }
7403cb63
MM
6245 }
6246
6247 /* If we didn't have an appropriate entry, we create one now. */
6248 if (entry == last_entry)
6249 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6250
6251 if (offsetp)
6252 {
103186c6 6253 address = MIPS_ELF_GET_WORD (abfd, entry);
7403cb63
MM
6254 *offsetp = value - address;
6255 }
6256
6257 return index;
6258}
6259
6260/* Find a GOT entry whose higher-order 16 bits are the same as those
6261 for value. Return the index into the GOT for this entry. */
6262
6263static bfd_vma
b305ef96 6264mips_elf_got16_entry (abfd, info, value, external)
7403cb63
MM
6265 bfd *abfd;
6266 struct bfd_link_info *info;
6267 bfd_vma value;
b305ef96 6268 boolean external;
7403cb63
MM
6269{
6270 asection *sgot;
6271 struct mips_got_info *g;
6272 bfd_byte *entry;
6273 bfd_byte *last_entry;
86033394 6274 bfd_vma index = 0;
7403cb63
MM
6275 bfd_vma address;
6276
b305ef96
UC
6277 if (! external)
6278 {
6279 /* Although the ABI says that it is "the high-order 16 bits" that we
6280 want, it is really the %high value. The complete value is
6281 calculated with a `addiu' of a LO16 relocation, just as with a
6282 HI16/LO16 pair. */
6283 value = mips_elf_high (value) << 16;
6284 }
6285
7403cb63
MM
6286 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6287
6288 /* Look to see if we already have an appropriate entry. */
103186c6 6289 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
be3ccd9c 6290 for (entry = (sgot->contents
103186c6 6291 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
7403cb63 6292 entry != last_entry;
103186c6 6293 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6294 {
103186c6 6295 address = MIPS_ELF_GET_WORD (abfd, entry);
b305ef96 6296 if (address == value)
252b5132 6297 {
b305ef96
UC
6298 /* This entry has the right high-order 16 bits, and the low-order
6299 16 bits are set to zero. */
4f2860ca 6300 index = entry - sgot->contents;
7403cb63
MM
6301 break;
6302 }
6303 }
6304
6305 /* If we didn't have an appropriate entry, we create one now. */
6306 if (entry == last_entry)
6307 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6308
6309 return index;
6310}
6311
bb2d6cd7 6312/* Returns the first relocation of type r_type found, beginning with
23b255aa 6313 RELOCATION. RELEND is one-past-the-end of the relocation table. */
7403cb63 6314
23b255aa 6315static const Elf_Internal_Rela *
bb2d6cd7
GK
6316mips_elf_next_relocation (r_type, relocation, relend)
6317 unsigned int r_type;
103186c6
MM
6318 const Elf_Internal_Rela *relocation;
6319 const Elf_Internal_Rela *relend;
7403cb63
MM
6320{
6321 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
6322 immediately following. However, for the IRIX6 ABI, the next
6323 relocation may be a composed relocation consisting of several
6324 relocations for the same address. In that case, the R_MIPS_LO16
435394bf 6325 relocation may occur as one of these. We permit a similar
7403cb63
MM
6326 extension in general, as that is useful for GCC. */
6327 while (relocation < relend)
6328 {
bb2d6cd7 6329 if (ELF32_R_TYPE (relocation->r_info) == r_type)
23b255aa 6330 return relocation;
7403cb63
MM
6331
6332 ++relocation;
6333 }
6334
6335 /* We didn't find it. */
6387d602 6336 bfd_set_error (bfd_error_bad_value);
23b255aa 6337 return NULL;
7403cb63
MM
6338}
6339
7b1f1231
MM
6340/* Create a rel.dyn relocation for the dynamic linker to resolve. REL
6341 is the original relocation, which is now being transformed into a
b305ef96 6342 dynamic relocation. The ADDENDP is adjusted if necessary; the
7b1f1231 6343 caller should store the result in place of the original addend. */
7403cb63 6344
7b1f1231
MM
6345static boolean
6346mips_elf_create_dynamic_relocation (output_bfd, info, rel, h, sec,
9117d219 6347 symbol, addendp, input_section)
7403cb63
MM
6348 bfd *output_bfd;
6349 struct bfd_link_info *info;
103186c6 6350 const Elf_Internal_Rela *rel;
7b1f1231
MM
6351 struct mips_elf_link_hash_entry *h;
6352 asection *sec;
6353 bfd_vma symbol;
6354 bfd_vma *addendp;
7403cb63
MM
6355 asection *input_section;
6356{
6357 Elf_Internal_Rel outrel;
6358 boolean skip;
6359 asection *sreloc;
6360 bfd *dynobj;
6361 int r_type;
6362
6363 r_type = ELF32_R_TYPE (rel->r_info);
6364 dynobj = elf_hash_table (info)->dynobj;
be3ccd9c 6365 sreloc
103186c6
MM
6366 = bfd_get_section_by_name (dynobj,
6367 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd));
7403cb63 6368 BFD_ASSERT (sreloc != NULL);
b305ef96 6369 BFD_ASSERT (sreloc->contents != NULL);
14d5043a
L
6370 BFD_ASSERT (sreloc->reloc_count * MIPS_ELF_REL_SIZE (output_bfd)
6371 < sreloc->_raw_size);
7403cb63
MM
6372
6373 skip = false;
c629eae0
JJ
6374 outrel.r_offset =
6375 _bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset);
6376 if (outrel.r_offset == (bfd_vma) -1)
6377 skip = true;
0bb2d96a
JJ
6378 /* FIXME: For -2 runtime relocation needs to be skipped, but
6379 properly resolved statically and installed. */
6380 BFD_ASSERT (outrel.r_offset != (bfd_vma) -2);
7403cb63 6381
b305ef96 6382 /* If we've decided to skip this relocation, just output an empty
7b1f1231
MM
6383 record. Note that R_MIPS_NONE == 0, so that this call to memset
6384 is a way of setting R_TYPE to R_MIPS_NONE. */
7403cb63
MM
6385 if (skip)
6386 memset (&outrel, 0, sizeof (outrel));
7b1f1231
MM
6387 else
6388 {
6389 long indx;
6390 bfd_vma section_offset;
6391
6392 /* We must now calculate the dynamic symbol table index to use
6393 in the relocation. */
6394 if (h != NULL
6395 && (! info->symbolic || (h->root.elf_link_hash_flags
6396 & ELF_LINK_HASH_DEF_REGULAR) == 0))
6397 {
6398 indx = h->root.dynindx;
b305ef96
UC
6399 /* h->root.dynindx may be -1 if this symbol was marked to
6400 become local. */
6401 if (indx == -1)
be3ccd9c 6402 indx = 0;
7b1f1231
MM
6403 }
6404 else
6405 {
6406 if (sec != NULL && bfd_is_abs_section (sec))
6407 indx = 0;
6408 else if (sec == NULL || sec->owner == NULL)
6409 {
6410 bfd_set_error (bfd_error_bad_value);
6411 return false;
6412 }
6413 else
6414 {
6415 indx = elf_section_data (sec->output_section)->dynindx;
6416 if (indx == 0)
6417 abort ();
6418 }
6419
6420 /* Figure out how far the target of the relocation is from
6421 the beginning of its section. */
6422 section_offset = symbol - sec->output_section->vma;
6423 /* The relocation we're building is section-relative.
6424 Therefore, the original addend must be adjusted by the
6425 section offset. */
9117d219 6426 *addendp += section_offset;
7b1f1231
MM
6427 /* Now, the relocation is just against the section. */
6428 symbol = sec->output_section->vma;
6429 }
be3ccd9c 6430
9117d219
NC
6431 /* If the relocation was previously an absolute relocation and
6432 this symbol will not be referred to by the relocation, we must
6433 adjust it by the value we give it in the dynamic symbol table.
6434 Otherwise leave the job up to the dynamic linker. */
6435 if (!indx && r_type != R_MIPS_REL32)
7b1f1231
MM
6436 *addendp += symbol;
6437
6438 /* The relocation is always an REL32 relocation because we don't
6439 know where the shared library will wind up at load-time. */
6440 outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32);
6441
6442 /* Adjust the output offset of the relocation to reference the
6443 correct location in the output file. */
6444 outrel.r_offset += (input_section->output_section->vma
6445 + input_section->output_offset);
6446 }
7403cb63 6447
7b1f1231
MM
6448 /* Put the relocation back out. We have to use the special
6449 relocation outputter in the 64-bit case since the 64-bit
6450 relocation format is non-standard. */
103186c6
MM
6451 if (ABI_64_P (output_bfd))
6452 {
6453 (*get_elf_backend_data (output_bfd)->s->swap_reloc_out)
6454 (output_bfd, &outrel,
be3ccd9c 6455 (sreloc->contents
103186c6
MM
6456 + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel)));
6457 }
6458 else
6459 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
6460 (((Elf32_External_Rel *)
6461 sreloc->contents)
6462 + sreloc->reloc_count));
7b1f1231
MM
6463
6464 /* Record the index of the first relocation referencing H. This
6465 information is later emitted in the .msym section. */
6466 if (h != NULL
be3ccd9c 6467 && (h->min_dyn_reloc_index == 0
7b1f1231
MM
6468 || sreloc->reloc_count < h->min_dyn_reloc_index))
6469 h->min_dyn_reloc_index = sreloc->reloc_count;
6470
6471 /* We've now added another relocation. */
7403cb63
MM
6472 ++sreloc->reloc_count;
6473
6474 /* Make sure the output section is writable. The dynamic linker
6475 will be writing to it. */
6476 elf_section_data (input_section->output_section)->this_hdr.sh_flags
6477 |= SHF_WRITE;
6478
6479 /* On IRIX5, make an entry of compact relocation info. */
6480 if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5)
6481 {
be3ccd9c 6482 asection *scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
7403cb63
MM
6483 bfd_byte *cr;
6484
6485 if (scpt)
6486 {
6487 Elf32_crinfo cptrel;
6488
6489 mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
6490 cptrel.vaddr = (rel->r_offset
6491 + input_section->output_section->vma
6492 + input_section->output_offset);
6493 if (r_type == R_MIPS_REL32)
6494 mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
252b5132 6495 else
7403cb63
MM
6496 mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
6497 mips_elf_set_cr_dist2to (cptrel, 0);
7b1f1231 6498 cptrel.konst = *addendp;
7403cb63
MM
6499
6500 cr = (scpt->contents
6501 + sizeof (Elf32_External_compact_rel));
6502 bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
6503 ((Elf32_External_crinfo *) cr
6504 + scpt->reloc_count));
6505 ++scpt->reloc_count;
6506 }
6507 }
252b5132 6508
7b1f1231 6509 return true;
7403cb63 6510}
252b5132 6511
7403cb63
MM
6512/* Calculate the value produced by the RELOCATION (which comes from
6513 the INPUT_BFD). The ADDEND is the addend to use for this
6514 RELOCATION; RELOCATION->R_ADDEND is ignored.
6515
6516 The result of the relocation calculation is stored in VALUEP.
197b9ca0
MM
6517 REQUIRE_JALXP indicates whether or not the opcode used with this
6518 relocation must be JALX.
7403cb63
MM
6519
6520 This function returns bfd_reloc_continue if the caller need take no
6521 further action regarding this relocation, bfd_reloc_notsupported if
6522 something goes dramatically wrong, bfd_reloc_overflow if an
6523 overflow occurs, and bfd_reloc_ok to indicate success. */
6524
6525static bfd_reloc_status_type
be3ccd9c 6526mips_elf_calculate_relocation (abfd,
7403cb63
MM
6527 input_bfd,
6528 input_section,
6529 info,
6530 relocation,
6531 addend,
6532 howto,
7403cb63
MM
6533 local_syms,
6534 local_sections,
6535 valuep,
197b9ca0 6536 namep,
be3ccd9c 6537 require_jalxp)
7403cb63
MM
6538 bfd *abfd;
6539 bfd *input_bfd;
6540 asection *input_section;
6541 struct bfd_link_info *info;
103186c6 6542 const Elf_Internal_Rela *relocation;
7403cb63
MM
6543 bfd_vma addend;
6544 reloc_howto_type *howto;
7403cb63
MM
6545 Elf_Internal_Sym *local_syms;
6546 asection **local_sections;
6547 bfd_vma *valuep;
6548 const char **namep;
197b9ca0 6549 boolean *require_jalxp;
7403cb63
MM
6550{
6551 /* The eventual value we will return. */
6552 bfd_vma value;
6553 /* The address of the symbol against which the relocation is
6554 occurring. */
6555 bfd_vma symbol = 0;
6556 /* The final GP value to be used for the relocatable, executable, or
6557 shared object file being produced. */
6558 bfd_vma gp = (bfd_vma) - 1;
6559 /* The place (section offset or address) of the storage unit being
6560 relocated. */
6561 bfd_vma p;
6562 /* The value of GP used to create the relocatable object. */
6563 bfd_vma gp0 = (bfd_vma) - 1;
6564 /* The offset into the global offset table at which the address of
6565 the relocation entry symbol, adjusted by the addend, resides
6566 during execution. */
6567 bfd_vma g = (bfd_vma) - 1;
6568 /* The section in which the symbol referenced by the relocation is
6569 located. */
6570 asection *sec = NULL;
be3ccd9c 6571 struct mips_elf_link_hash_entry *h = NULL;
103186c6
MM
6572 /* True if the symbol referred to by this relocation is a local
6573 symbol. */
7403cb63 6574 boolean local_p;
103186c6 6575 /* True if the symbol referred to by this relocation is "_gp_disp". */
7403cb63
MM
6576 boolean gp_disp_p = false;
6577 Elf_Internal_Shdr *symtab_hdr;
6578 size_t extsymoff;
103186c6 6579 unsigned long r_symndx;
7403cb63 6580 int r_type;
103186c6
MM
6581 /* True if overflow occurred during the calculation of the
6582 relocation value. */
7403cb63 6583 boolean overflowed_p;
197b9ca0
MM
6584 /* True if this relocation refers to a MIPS16 function. */
6585 boolean target_is_16_bit_code_p = false;
7403cb63
MM
6586
6587 /* Parse the relocation. */
6588 r_symndx = ELF32_R_SYM (relocation->r_info);
6589 r_type = ELF32_R_TYPE (relocation->r_info);
be3ccd9c 6590 p = (input_section->output_section->vma
7403cb63
MM
6591 + input_section->output_offset
6592 + relocation->r_offset);
6593
6594 /* Assume that there will be no overflow. */
6595 overflowed_p = false;
6596
6387d602
ILT
6597 /* Figure out whether or not the symbol is local, and get the offset
6598 used in the array of hash table entries. */
7403cb63 6599 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6387d602 6600 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
b305ef96 6601 local_sections, false);
6387d602
ILT
6602 if (! elf_bad_symtab (input_bfd))
6603 extsymoff = symtab_hdr->sh_info;
6604 else
7403cb63
MM
6605 {
6606 /* The symbol table does not follow the rule that local symbols
6607 must come before globals. */
6608 extsymoff = 0;
7403cb63 6609 }
be3ccd9c 6610
7403cb63
MM
6611 /* Figure out the value of the symbol. */
6612 if (local_p)
6613 {
6614 Elf_Internal_Sym *sym;
6615
6616 sym = local_syms + r_symndx;
6617 sec = local_sections[r_symndx];
6618
6619 symbol = sec->output_section->vma + sec->output_offset;
6620 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
6621 symbol += sym->st_value;
6622
6623 /* MIPS16 text labels should be treated as odd. */
6624 if (sym->st_other == STO_MIPS16)
6625 ++symbol;
6626
6627 /* Record the name of this symbol, for our caller. */
6628 *namep = bfd_elf_string_from_elf_section (input_bfd,
6629 symtab_hdr->sh_link,
6630 sym->st_name);
e049a0de 6631 if (*namep == '\0')
7403cb63 6632 *namep = bfd_section_name (input_bfd, sec);
197b9ca0
MM
6633
6634 target_is_16_bit_code_p = (sym->st_other == STO_MIPS16);
7403cb63
MM
6635 }
6636 else
6637 {
6638 /* For global symbols we look up the symbol in the hash-table. */
be3ccd9c 6639 h = ((struct mips_elf_link_hash_entry *)
7403cb63
MM
6640 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
6641 /* Find the real hash-table entry for this symbol. */
b305ef96
UC
6642 while (h->root.root.type == bfd_link_hash_indirect
6643 || h->root.root.type == bfd_link_hash_warning)
7403cb63 6644 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
be3ccd9c 6645
7403cb63
MM
6646 /* Record the name of this symbol, for our caller. */
6647 *namep = h->root.root.root.string;
6648
6649 /* See if this is the special _gp_disp symbol. Note that such a
6650 symbol must always be a global symbol. */
6651 if (strcmp (h->root.root.root.string, "_gp_disp") == 0)
6652 {
6653 /* Relocations against _gp_disp are permitted only with
6654 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6655 if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16)
6656 return bfd_reloc_notsupported;
6657
6658 gp_disp_p = true;
6659 }
97a4bb05
MM
6660 /* If this symbol is defined, calculate its address. Note that
6661 _gp_disp is a magic symbol, always implicitly defined by the
6662 linker, so it's inappropriate to check to see whether or not
6663 its defined. */
6664 else if ((h->root.root.type == bfd_link_hash_defined
6665 || h->root.root.type == bfd_link_hash_defweak)
6666 && h->root.root.u.def.section)
7403cb63
MM
6667 {
6668 sec = h->root.root.u.def.section;
6669 if (sec->output_section)
be3ccd9c 6670 symbol = (h->root.root.u.def.value
7403cb63
MM
6671 + sec->output_section->vma
6672 + sec->output_offset);
252b5132 6673 else
7403cb63
MM
6674 symbol = h->root.root.u.def.value;
6675 }
97287574
MM
6676 else if (h->root.root.type == bfd_link_hash_undefweak)
6677 /* We allow relocations against undefined weak symbols, giving
6678 it the value zero, so that you can undefined weak functions
6679 and check to see if they exist by looking at their
6680 addresses. */
6681 symbol = 0;
671bae9c
NC
6682 else if (info->shared
6683 && (!info->symbolic || info->allow_shlib_undefined)
6684 && !info->no_undefined
ba09750c 6685 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
8535d39c 6686 symbol = 0;
f7cb7d68
UC
6687 else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0 ||
6688 strcmp (h->root.root.root.string, "_DYNAMIC_LINKING") == 0)
3811169e
MM
6689 {
6690 /* If this is a dynamic link, we should have created a
be3ccd9c 6691 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
f7cb7d68 6692 in in mips_elf_create_dynamic_sections.
3811169e
MM
6693 Otherwise, we should define the symbol with a value of 0.
6694 FIXME: It should probably get into the symbol table
6695 somehow as well. */
6696 BFD_ASSERT (! info->shared);
6697 BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
8535d39c 6698 symbol = 0;
3811169e 6699 }
7403cb63
MM
6700 else
6701 {
5cc7c785
L
6702 if (! ((*info->callbacks->undefined_symbol)
6703 (info, h->root.root.root.string, input_bfd,
6704 input_section, relocation->r_offset,
3a27a730 6705 (!info->shared || info->no_undefined
ba09750c 6706 || ELF_ST_VISIBILITY (h->root.other)))))
5cc7c785
L
6707 return bfd_reloc_undefined;
6708 symbol = 0;
7403cb63 6709 }
197b9ca0
MM
6710
6711 target_is_16_bit_code_p = (h->root.other == STO_MIPS16);
6712 }
be3ccd9c 6713
197b9ca0
MM
6714 /* If this is a 32-bit call to a 16-bit function with a stub, we
6715 need to redirect the call to the stub, unless we're already *in*
6716 a stub. */
6717 if (r_type != R_MIPS16_26 && !info->relocateable
6718 && ((h != NULL && h->fn_stub != NULL)
6719 || (local_p && elf_tdata (input_bfd)->local_stubs != NULL
6720 && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
6721 && !mips_elf_stub_section_p (input_bfd, input_section))
6722 {
6723 /* This is a 32-bit call to a 16-bit function. We should
6724 have already noticed that we were going to need the
6725 stub. */
6726 if (local_p)
6727 sec = elf_tdata (input_bfd)->local_stubs[r_symndx];
6728 else
6729 {
6730 BFD_ASSERT (h->need_fn_stub);
6731 sec = h->fn_stub;
6732 }
6733
6734 symbol = sec->output_section->vma + sec->output_offset;
7403cb63 6735 }
197b9ca0
MM
6736 /* If this is a 16-bit call to a 32-bit function with a stub, we
6737 need to redirect the call to the stub. */
6738 else if (r_type == R_MIPS16_26 && !info->relocateable
be3ccd9c 6739 && h != NULL
197b9ca0
MM
6740 && (h->call_stub != NULL || h->call_fp_stub != NULL)
6741 && !target_is_16_bit_code_p)
6742 {
6743 /* If both call_stub and call_fp_stub are defined, we can figure
6744 out which one to use by seeing which one appears in the input
6745 file. */
6746 if (h->call_stub != NULL && h->call_fp_stub != NULL)
6747 {
6748 asection *o;
6749
6750 sec = NULL;
6751 for (o = input_bfd->sections; o != NULL; o = o->next)
6752 {
6753 if (strncmp (bfd_get_section_name (input_bfd, o),
6754 CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
6755 {
6756 sec = h->call_fp_stub;
6757 break;
6758 }
6759 }
6760 if (sec == NULL)
6761 sec = h->call_stub;
6762 }
6763 else if (h->call_stub != NULL)
6764 sec = h->call_stub;
6765 else
6766 sec = h->call_fp_stub;
6767
6768 BFD_ASSERT (sec->_raw_size > 0);
6769 symbol = sec->output_section->vma + sec->output_offset;
6770 }
6771
6772 /* Calls from 16-bit code to 32-bit code and vice versa require the
6773 special jalx instruction. */
6387d602 6774 *require_jalxp = (!info->relocateable
55baa95b
EC
6775 && (((r_type == R_MIPS16_26) && !target_is_16_bit_code_p)
6776 || ((r_type == R_MIPS_26) && target_is_16_bit_code_p)));
252b5132 6777
b305ef96
UC
6778 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6779 local_sections, true);
6780
7403cb63
MM
6781 /* If we haven't already determined the GOT offset, or the GP value,
6782 and we're going to need it, get it now. */
6783 switch (r_type)
6784 {
6785 case R_MIPS_CALL16:
2841ecd0 6786 case R_MIPS_GOT16:
7403cb63
MM
6787 case R_MIPS_GOT_DISP:
6788 case R_MIPS_GOT_HI16:
6789 case R_MIPS_CALL_HI16:
6790 case R_MIPS_GOT_LO16:
6791 case R_MIPS_CALL_LO16:
6792 /* Find the index into the GOT where this value is located. */
4f2860ca 6793 if (!local_p)
7403cb63
MM
6794 {
6795 BFD_ASSERT (addend == 0);
be3ccd9c 6796 g = mips_elf_global_got_index
7403cb63 6797 (elf_hash_table (info)->dynobj,
be3ccd9c 6798 (struct elf_link_hash_entry *) h);
9a8f3bb7
UC
6799 if (! elf_hash_table(info)->dynamic_sections_created
6800 || (info->shared
6801 && (info->symbolic || h->root.dynindx == -1)
6802 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
6803 {
6804 /* This is a static link or a -Bsymbolic link. The
6805 symbol is defined locally, or was forced to be local.
6806 We must initialize this entry in the GOT. */
6807 asection *sgot = mips_elf_got_section(elf_hash_table
6808 (info)->dynobj);
6809 MIPS_ELF_PUT_WORD (elf_hash_table (info)->dynobj,
6810 symbol + addend, sgot->contents + g);
6811 }
7403cb63 6812 }
9117d219 6813 else if (r_type == R_MIPS_GOT16 || r_type == R_MIPS_CALL16)
4f2860ca
MM
6814 /* There's no need to create a local GOT entry here; the
6815 calculation for a local GOT16 entry does not involve G. */
6816 break;
7403cb63
MM
6817 else
6818 {
6819 g = mips_elf_local_got_index (abfd, info, symbol + addend);
6820 if (g == (bfd_vma) -1)
caf8ca8e 6821 return bfd_reloc_outofrange;
7403cb63 6822 }
252b5132 6823
7403cb63
MM
6824 /* Convert GOT indices to actual offsets. */
6825 g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6826 abfd, g);
6827 break;
be3ccd9c 6828
7403cb63
MM
6829 case R_MIPS_HI16:
6830 case R_MIPS_LO16:
175e9962 6831 case R_MIPS16_GPREL:
7403cb63
MM
6832 case R_MIPS_GPREL16:
6833 case R_MIPS_GPREL32:
0af99795 6834 case R_MIPS_LITERAL:
7403cb63
MM
6835 gp0 = _bfd_get_gp_value (input_bfd);
6836 gp = _bfd_get_gp_value (abfd);
6837 break;
252b5132 6838
7403cb63
MM
6839 default:
6840 break;
6841 }
252b5132 6842
7403cb63
MM
6843 /* Figure out what kind of relocation is being performed. */
6844 switch (r_type)
6845 {
6846 case R_MIPS_NONE:
6847 return bfd_reloc_continue;
252b5132 6848
7403cb63
MM
6849 case R_MIPS_16:
6850 value = symbol + mips_elf_sign_extend (addend, 16);
6851 overflowed_p = mips_elf_overflow_p (value, 16);
6852 break;
252b5132 6853
7403cb63
MM
6854 case R_MIPS_32:
6855 case R_MIPS_REL32:
a3c7651d 6856 case R_MIPS_64:
7b1f1231
MM
6857 if ((info->shared
6858 || (elf_hash_table (info)->dynamic_sections_created
6859 && h != NULL
d918dd35
L
6860 && ((h->root.elf_link_hash_flags
6861 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)
6862 && ((h->root.elf_link_hash_flags
6863 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
ec338859 6864 && r_symndx != 0
7b1f1231 6865 && (input_section->flags & SEC_ALLOC) != 0)
7403cb63 6866 {
7b1f1231
MM
6867 /* If we're creating a shared library, or this relocation is
6868 against a symbol in a shared library, then we can't know
6869 where the symbol will end up. So, we create a relocation
6870 record in the output, and leave the job up to the dynamic
6871 linker. */
6872 value = addend;
be3ccd9c
KH
6873 if (!mips_elf_create_dynamic_relocation (abfd,
6874 info,
7b1f1231
MM
6875 relocation,
6876 h,
6877 sec,
6878 symbol,
6879 &value,
9117d219 6880 input_section))
caf8ca8e 6881 return bfd_reloc_undefined;
7403cb63
MM
6882 }
6883 else
6884 {
a3c7651d 6885 if (r_type != R_MIPS_REL32)
7403cb63
MM
6886 value = symbol + addend;
6887 else
6888 value = addend;
6889 }
6890 value &= howto->dst_mask;
6891 break;
6892
bb2d6cd7
GK
6893 case R_MIPS_PC32:
6894 case R_MIPS_PC64:
6895 case R_MIPS_GNU_REL_LO16:
6896 value = symbol + addend - p;
6897 value &= howto->dst_mask;
6898 break;
6899
6900 case R_MIPS_GNU_REL16_S2:
6901 value = symbol + mips_elf_sign_extend (addend << 2, 18) - p;
6902 overflowed_p = mips_elf_overflow_p (value, 18);
6903 value = (value >> 2) & howto->dst_mask;
6904 break;
6905
6906 case R_MIPS_GNU_REL_HI16:
fcc76bea
CD
6907 /* Instead of subtracting 'p' here, we should be subtracting the
6908 equivalent value for the LO part of the reloc, since the value
6909 here is relative to that address. Because that's not easy to do,
6910 we adjust 'addend' in _bfd_mips_elf_relocate_section(). See also
6911 the comment there for more information. */
bb2d6cd7
GK
6912 value = mips_elf_high (addend + symbol - p);
6913 value &= howto->dst_mask;
6914 break;
6915
e53bd91b 6916 case R_MIPS16_26:
9117d219 6917 /* The calculation for R_MIPS16_26 is just the same as for an
e53bd91b 6918 R_MIPS_26. It's only the storage of the relocated field into
1e52e2ee 6919 the output file that's different. That's handled in
e53bd91b
MM
6920 mips_elf_perform_relocation. So, we just fall through to the
6921 R_MIPS_26 case here. */
7403cb63
MM
6922 case R_MIPS_26:
6923 if (local_p)
9117d219 6924 value = (((addend << 2) | ((p + 4) & 0xf0000000)) + symbol) >> 2;
7403cb63
MM
6925 else
6926 value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2;
6927 value &= howto->dst_mask;
6928 break;
6929
6930 case R_MIPS_HI16:
6931 if (!gp_disp_p)
6932 {
6933 value = mips_elf_high (addend + symbol);
6934 value &= howto->dst_mask;
6935 }
6936 else
6937 {
6938 value = mips_elf_high (addend + gp - p);
6939 overflowed_p = mips_elf_overflow_p (value, 16);
6940 }
6941 break;
6942
6943 case R_MIPS_LO16:
6944 if (!gp_disp_p)
6945 value = (symbol + addend) & howto->dst_mask;
6946 else
6947 {
6948 value = addend + gp - p + 4;
97a4bb05
MM
6949 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6950 for overflow. But, on, say, Irix 5, relocations against
6951 _gp_disp are normally generated from the .cpload
6952 pseudo-op. It generates code that normally looks like
6953 this:
6954
6955 lui $gp,%hi(_gp_disp)
6956 addiu $gp,$gp,%lo(_gp_disp)
6957 addu $gp,$gp,$t9
6958
6959 Here $t9 holds the address of the function being called,
6960 as required by the MIPS ELF ABI. The R_MIPS_LO16
e53bd91b 6961 relocation can easily overflow in this situation, but the
97a4bb05
MM
6962 R_MIPS_HI16 relocation will handle the overflow.
6963 Therefore, we consider this a bug in the MIPS ABI, and do
6964 not check for overflow here. */
7403cb63
MM
6965 }
6966 break;
6967
6968 case R_MIPS_LITERAL:
6969 /* Because we don't merge literal sections, we can handle this
6970 just like R_MIPS_GPREL16. In the long run, we should merge
6971 shared literals, and then we will need to additional work
6972 here. */
6973
6974 /* Fall through. */
6975
b7233c24
MM
6976 case R_MIPS16_GPREL:
6977 /* The R_MIPS16_GPREL performs the same calculation as
6978 R_MIPS_GPREL16, but stores the relocated bits in a different
6979 order. We don't need to do anything special here; the
6980 differences are handled in mips_elf_perform_relocation. */
7403cb63
MM
6981 case R_MIPS_GPREL16:
6982 if (local_p)
6983 value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp;
6984 else
6985 value = mips_elf_sign_extend (addend, 16) + symbol - gp;
6986 overflowed_p = mips_elf_overflow_p (value, 16);
6987 break;
be3ccd9c 6988
7403cb63 6989 case R_MIPS_GOT16:
9117d219 6990 case R_MIPS_CALL16:
7403cb63
MM
6991 if (local_p)
6992 {
b305ef96 6993 boolean forced;
be3ccd9c 6994
b305ef96
UC
6995 /* The special case is when the symbol is forced to be local. We
6996 need the full address in the GOT since no R_MIPS_LO16 relocation
6997 follows. */
6998 forced = ! mips_elf_local_relocation_p (input_bfd, relocation,
6999 local_sections, false);
7000 value = mips_elf_got16_entry (abfd, info, symbol + addend, forced);
7403cb63 7001 if (value == (bfd_vma) -1)
caf8ca8e 7002 return bfd_reloc_outofrange;
be3ccd9c 7003 value
7403cb63
MM
7004 = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
7005 abfd,
7006 value);
7007 overflowed_p = mips_elf_overflow_p (value, 16);
7008 break;
7009 }
7010
7011 /* Fall through. */
7012
7403cb63
MM
7013 case R_MIPS_GOT_DISP:
7014 value = g;
7015 overflowed_p = mips_elf_overflow_p (value, 16);
7016 break;
7017
7018 case R_MIPS_GPREL32:
7019 value = (addend + symbol + gp0 - gp) & howto->dst_mask;
7020 break;
7021
7022 case R_MIPS_PC16:
7023 value = mips_elf_sign_extend (addend, 16) + symbol - p;
7024 overflowed_p = mips_elf_overflow_p (value, 16);
cb56d3d3 7025 value = (bfd_vma) ((bfd_signed_vma) value / 4);
7403cb63
MM
7026 break;
7027
7028 case R_MIPS_GOT_HI16:
7029 case R_MIPS_CALL_HI16:
7030 /* We're allowed to handle these two relocations identically.
7031 The dynamic linker is allowed to handle the CALL relocations
7032 differently by creating a lazy evaluation stub. */
7033 value = g;
7034 value = mips_elf_high (value);
7035 value &= howto->dst_mask;
7036 break;
7037
7038 case R_MIPS_GOT_LO16:
7039 case R_MIPS_CALL_LO16:
7040 value = g & howto->dst_mask;
7041 break;
7042
7403cb63
MM
7043 case R_MIPS_GOT_PAGE:
7044 value = mips_elf_got_page (abfd, info, symbol + addend, NULL);
7045 if (value == (bfd_vma) -1)
caf8ca8e 7046 return bfd_reloc_outofrange;
7403cb63
MM
7047 value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
7048 abfd,
7049 value);
7050 overflowed_p = mips_elf_overflow_p (value, 16);
7051 break;
be3ccd9c 7052
7403cb63
MM
7053 case R_MIPS_GOT_OFST:
7054 mips_elf_got_page (abfd, info, symbol + addend, &value);
7055 overflowed_p = mips_elf_overflow_p (value, 16);
7056 break;
7057
7058 case R_MIPS_SUB:
7059 value = symbol - addend;
7060 value &= howto->dst_mask;
7061 break;
7062
7063 case R_MIPS_HIGHER:
7064 value = mips_elf_higher (addend + symbol);
7065 value &= howto->dst_mask;
7066 break;
7067
7068 case R_MIPS_HIGHEST:
7069 value = mips_elf_highest (addend + symbol);
7070 value &= howto->dst_mask;
7071 break;
be3ccd9c 7072
7403cb63
MM
7073 case R_MIPS_SCN_DISP:
7074 value = symbol + addend - sec->output_offset;
7075 value &= howto->dst_mask;
7076 break;
7077
7078 case R_MIPS_PJUMP:
7079 case R_MIPS_JALR:
7080 /* Both of these may be ignored. R_MIPS_JALR is an optimization
7081 hint; we could improve performance by honoring that hint. */
7082 return bfd_reloc_continue;
7083
7084 case R_MIPS_GNU_VTINHERIT:
7085 case R_MIPS_GNU_VTENTRY:
7086 /* We don't do anything with these at present. */
7087 return bfd_reloc_continue;
7088
7403cb63
MM
7089 default:
7090 /* An unrecognized relocation type. */
7091 return bfd_reloc_notsupported;
7092 }
7093
7094 /* Store the VALUE for our caller. */
7095 *valuep = value;
7096 return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
7097}
7098
7099/* Obtain the field relocated by RELOCATION. */
7100
7101static bfd_vma
7102mips_elf_obtain_contents (howto, relocation, input_bfd, contents)
7103 reloc_howto_type *howto;
103186c6 7104 const Elf_Internal_Rela *relocation;
7403cb63
MM
7105 bfd *input_bfd;
7106 bfd_byte *contents;
7107{
7108 bfd_vma x;
7109 bfd_byte *location = contents + relocation->r_offset;
7110
b7233c24 7111 /* Obtain the bytes. */
1e738b87 7112 x = bfd_get (((bfd_vma)(8 * bfd_get_reloc_size (howto))), input_bfd, location);
7403cb63 7113
6296902e
MM
7114 if ((ELF32_R_TYPE (relocation->r_info) == R_MIPS16_26
7115 || ELF32_R_TYPE (relocation->r_info) == R_MIPS16_GPREL)
1e52e2ee
MM
7116 && bfd_little_endian (input_bfd))
7117 /* The two 16-bit words will be reversed on a little-endian
7118 system. See mips_elf_perform_relocation for more details. */
7119 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
7120
7403cb63
MM
7121 return x;
7122}
7123
7124/* It has been determined that the result of the RELOCATION is the
7125 VALUE. Use HOWTO to place VALUE into the output file at the
7126 appropriate position. The SECTION is the section to which the
197b9ca0
MM
7127 relocation applies. If REQUIRE_JALX is true, then the opcode used
7128 for the relocation must be either JAL or JALX, and it is
7129 unconditionally converted to JALX.
7403cb63
MM
7130
7131 Returns false if anything goes wrong. */
252b5132 7132
197b9ca0 7133static boolean
e53bd91b 7134mips_elf_perform_relocation (info, howto, relocation, value,
be3ccd9c 7135 input_bfd, input_section,
197b9ca0 7136 contents, require_jalx)
e53bd91b 7137 struct bfd_link_info *info;
7403cb63 7138 reloc_howto_type *howto;
103186c6 7139 const Elf_Internal_Rela *relocation;
7403cb63
MM
7140 bfd_vma value;
7141 bfd *input_bfd;
197b9ca0 7142 asection *input_section;
7403cb63 7143 bfd_byte *contents;
197b9ca0 7144 boolean require_jalx;
7403cb63
MM
7145{
7146 bfd_vma x;
e53bd91b 7147 bfd_byte *location;
197b9ca0 7148 int r_type = ELF32_R_TYPE (relocation->r_info);
e53bd91b
MM
7149
7150 /* Figure out where the relocation is occurring. */
7151 location = contents + relocation->r_offset;
252b5132 7152
7403cb63
MM
7153 /* Obtain the current value. */
7154 x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents);
252b5132 7155
7403cb63
MM
7156 /* Clear the field we are setting. */
7157 x &= ~howto->dst_mask;
252b5132 7158
e53bd91b
MM
7159 /* If this is the R_MIPS16_26 relocation, we must store the
7160 value in a funny way. */
197b9ca0 7161 if (r_type == R_MIPS16_26)
7403cb63 7162 {
e53bd91b
MM
7163 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
7164 Most mips16 instructions are 16 bits, but these instructions
7165 are 32 bits.
7166
7167 The format of these instructions is:
7168
7169 +--------------+--------------------------------+
7170 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
7171 +--------------+--------------------------------+
7172 ! Immediate 15:0 !
7173 +-----------------------------------------------+
be3ccd9c 7174
e53bd91b
MM
7175 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
7176 Note that the immediate value in the first word is swapped.
7177
7178 When producing a relocateable object file, R_MIPS16_26 is
7179 handled mostly like R_MIPS_26. In particular, the addend is
7180 stored as a straight 26-bit value in a 32-bit instruction.
7181 (gas makes life simpler for itself by never adjusting a
7182 R_MIPS16_26 reloc to be against a section, so the addend is
7183 always zero). However, the 32 bit instruction is stored as 2
7184 16-bit values, rather than a single 32-bit value. In a
7185 big-endian file, the result is the same; in a little-endian
7186 file, the two 16-bit halves of the 32 bit value are swapped.
7187 This is so that a disassembler can recognize the jal
7188 instruction.
7189
7190 When doing a final link, R_MIPS16_26 is treated as a 32 bit
7191 instruction stored as two 16-bit values. The addend A is the
7192 contents of the targ26 field. The calculation is the same as
7193 R_MIPS_26. When storing the calculated value, reorder the
7194 immediate value as shown above, and don't forget to store the
7195 value as two 16-bit values.
7196
7197 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
7198 defined as
be3ccd9c 7199
e53bd91b
MM
7200 big-endian:
7201 +--------+----------------------+
7202 | | |
7203 | | targ26-16 |
7204 |31 26|25 0|
7205 +--------+----------------------+
be3ccd9c 7206
e53bd91b
MM
7207 little-endian:
7208 +----------+------+-------------+
7209 | | | |
7210 | sub1 | | sub2 |
7211 |0 9|10 15|16 31|
7212 +----------+--------------------+
7213 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
7214 ((sub1 << 16) | sub2)).
be3ccd9c 7215
e53bd91b 7216 When producing a relocateable object file, the calculation is
9117d219 7217 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
e53bd91b 7218 When producing a fully linked file, the calculation is
9117d219 7219 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
e53bd91b
MM
7220 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
7221
7222 if (!info->relocateable)
7223 /* Shuffle the bits according to the formula above. */
be3ccd9c
KH
7224 value = (((value & 0x1f0000) << 5)
7225 | ((value & 0x3e00000) >> 5)
e53bd91b 7226 | (value & 0xffff));
e53bd91b 7227 }
197b9ca0 7228 else if (r_type == R_MIPS16_GPREL)
b7233c24
MM
7229 {
7230 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
7231 mode. A typical instruction will have a format like this:
7232
7233 +--------------+--------------------------------+
7234 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
7235 +--------------+--------------------------------+
7236 ! Major ! rx ! ry ! Imm 4:0 !
7237 +--------------+--------------------------------+
be3ccd9c 7238
b7233c24
MM
7239 EXTEND is the five bit value 11110. Major is the instruction
7240 opcode.
be3ccd9c 7241
b7233c24
MM
7242 This is handled exactly like R_MIPS_GPREL16, except that the
7243 addend is retrieved and stored as shown in this diagram; that
be3ccd9c 7244 is, the Imm fields above replace the V-rel16 field.
b7233c24 7245
6296902e
MM
7246 All we need to do here is shuffle the bits appropriately. As
7247 above, the two 16-bit halves must be swapped on a
7248 little-endian system. */
b7233c24
MM
7249 value = (((value & 0x7e0) << 16)
7250 | ((value & 0xf800) << 5)
7251 | (value & 0x1f));
7252 }
252b5132 7253
e53bd91b
MM
7254 /* Set the field. */
7255 x |= (value & howto->dst_mask);
252b5132 7256
197b9ca0
MM
7257 /* If required, turn JAL into JALX. */
7258 if (require_jalx)
7259 {
7260 boolean ok;
7261 bfd_vma opcode = x >> 26;
7262 bfd_vma jalx_opcode;
7263
7264 /* Check to see if the opcode is already JAL or JALX. */
7265 if (r_type == R_MIPS16_26)
7266 {
7267 ok = ((opcode == 0x6) || (opcode == 0x7));
7268 jalx_opcode = 0x7;
7269 }
7270 else
7271 {
7272 ok = ((opcode == 0x3) || (opcode == 0x1d));
7273 jalx_opcode = 0x1d;
7274 }
7275
7276 /* If the opcode is not JAL or JALX, there's a problem. */
7277 if (!ok)
7278 {
7279 (*_bfd_error_handler)
7280 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
8f615d07 7281 bfd_archive_filename (input_bfd),
197b9ca0
MM
7282 input_section->name,
7283 (unsigned long) relocation->r_offset);
7284 bfd_set_error (bfd_error_bad_value);
7285 return false;
7286 }
7287
7288 /* Make this the JALX opcode. */
7289 x = (x & ~(0x3f << 26)) | (jalx_opcode << 26);
7290 }
7291
6296902e
MM
7292 /* Swap the high- and low-order 16 bits on little-endian systems
7293 when doing a MIPS16 relocation. */
197b9ca0 7294 if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26)
6296902e
MM
7295 && bfd_little_endian (input_bfd))
7296 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
be3ccd9c 7297
e53bd91b
MM
7298 /* Put the value into the output. */
7299 bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
197b9ca0
MM
7300 return true;
7301}
7302
7303/* Returns true if SECTION is a MIPS16 stub section. */
7304
7305static boolean
7306mips_elf_stub_section_p (abfd, section)
6387d602 7307 bfd *abfd ATTRIBUTE_UNUSED;
197b9ca0
MM
7308 asection *section;
7309{
7310 const char *name = bfd_get_section_name (abfd, section);
7311
7312 return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0
7313 || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
7314 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0);
7403cb63 7315}
252b5132 7316
7403cb63 7317/* Relocate a MIPS ELF section. */
252b5132 7318
103186c6
MM
7319boolean
7320_bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
7321 contents, relocs, local_syms, local_sections)
7403cb63
MM
7322 bfd *output_bfd;
7323 struct bfd_link_info *info;
7324 bfd *input_bfd;
7325 asection *input_section;
7326 bfd_byte *contents;
7327 Elf_Internal_Rela *relocs;
7328 Elf_Internal_Sym *local_syms;
7329 asection **local_sections;
7330{
31367b81 7331 Elf_Internal_Rela *rel;
103186c6 7332 const Elf_Internal_Rela *relend;
86033394 7333 bfd_vma addend = 0;
7403cb63 7334 boolean use_saved_addend_p = false;
103186c6 7335 struct elf_backend_data *bed;
252b5132 7336
103186c6
MM
7337 bed = get_elf_backend_data (output_bfd);
7338 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
7403cb63
MM
7339 for (rel = relocs; rel < relend; ++rel)
7340 {
7341 const char *name;
7342 bfd_vma value;
7403cb63 7343 reloc_howto_type *howto;
197b9ca0 7344 boolean require_jalx;
31367b81
MM
7345 /* True if the relocation is a RELA relocation, rather than a
7346 REL relocation. */
7347 boolean rela_relocation_p = true;
dc810e39 7348 unsigned int r_type = ELF32_R_TYPE (rel->r_info);
7a65545d 7349 const char * msg = (const char *) NULL;
252b5132 7350
7403cb63 7351 /* Find the relocation howto for this relocation. */
31367b81 7352 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
0af99795
GK
7353 {
7354 /* Some 32-bit code uses R_MIPS_64. In particular, people use
be3ccd9c 7355 64-bit code, but make sure all their addresses are in the
0af99795
GK
7356 lowermost or uppermost 32-bit section of the 64-bit address
7357 space. Thus, when they use an R_MIPS_64 they mean what is
7358 usually meant by R_MIPS_32, with the exception that the
7359 stored value is sign-extended to 64 bits. */
d75bc93d 7360 howto = elf_mips_howto_table_rel + R_MIPS_32;
0af99795
GK
7361
7362 /* On big-endian systems, we need to lie about the position
7363 of the reloc. */
7364 if (bfd_big_endian (input_bfd))
be3ccd9c 7365 rel->r_offset += 4;
0af99795 7366 }
a3c7651d 7367 else
c9b3cbf3 7368 howto = mips_rtype_to_howto (r_type);
252b5132 7369
7403cb63
MM
7370 if (!use_saved_addend_p)
7371 {
7372 Elf_Internal_Shdr *rel_hdr;
7373
7374 /* If these relocations were originally of the REL variety,
7375 we must pull the addend out of the field that will be
7376 relocated. Otherwise, we simply use the contents of the
7377 RELA relocation. To determine which flavor or relocation
7378 this is, we depend on the fact that the INPUT_SECTION's
7379 REL_HDR is read before its REL_HDR2. */
7380 rel_hdr = &elf_section_data (input_section)->rel_hdr;
5f771d47 7381 if ((size_t) (rel - relocs)
d9bc7a44 7382 >= (NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel))
7403cb63 7383 rel_hdr = elf_section_data (input_section)->rel_hdr2;
103186c6 7384 if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd))
7403cb63 7385 {
31367b81
MM
7386 /* Note that this is a REL relocation. */
7387 rela_relocation_p = false;
7403cb63 7388
31367b81 7389 /* Get the addend, which is stored in the input file. */
be3ccd9c 7390 addend = mips_elf_obtain_contents (howto,
7403cb63
MM
7391 rel,
7392 input_bfd,
7393 contents);
7394 addend &= howto->src_mask;
7395
7396 /* For some kinds of relocations, the ADDEND is a
7397 combination of the addend stored in two different
7398 relocations. */
6387d602 7399 if (r_type == R_MIPS_HI16
bb2d6cd7 7400 || r_type == R_MIPS_GNU_REL_HI16
6387d602
ILT
7401 || (r_type == R_MIPS_GOT16
7402 && mips_elf_local_relocation_p (input_bfd, rel,
b305ef96 7403 local_sections, false)))
252b5132 7404 {
23b255aa
MM
7405 bfd_vma l;
7406 const Elf_Internal_Rela *lo16_relocation;
7407 reloc_howto_type *lo16_howto;
dc810e39 7408 unsigned int lo;
23b255aa 7409
e7c44218
MM
7410 /* The combined value is the sum of the HI16 addend,
7411 left-shifted by sixteen bits, and the LO16
7412 addend, sign extended. (Usually, the code does
7413 a `lui' of the HI16 value, and then an `addiu' of
be3ccd9c 7414 the LO16 value.)
e7c44218 7415
bb2d6cd7
GK
7416 Scan ahead to find a matching LO16 relocation. */
7417 if (r_type == R_MIPS_GNU_REL_HI16)
7418 lo = R_MIPS_GNU_REL_LO16;
7419 else
7420 lo = R_MIPS_LO16;
be3ccd9c
KH
7421 lo16_relocation
7422 = mips_elf_next_relocation (lo, rel, relend);
23b255aa 7423 if (lo16_relocation == NULL)
7403cb63 7424 return false;
252b5132 7425
23b255aa 7426 /* Obtain the addend kept there. */
bb2d6cd7 7427 lo16_howto = mips_rtype_to_howto (lo);
23b255aa
MM
7428 l = mips_elf_obtain_contents (lo16_howto,
7429 lo16_relocation,
7430 input_bfd, contents);
7431 l &= lo16_howto->src_mask;
e7c44218 7432 l = mips_elf_sign_extend (l, 16);
23b255aa 7433
7403cb63 7434 addend <<= 16;
252b5132 7435
7403cb63 7436 /* Compute the combined addend. */
e7c44218 7437 addend += l;
fcc76bea
CD
7438
7439 /* If PC-relative, subtract the difference between the
7440 address of the LO part of the reloc and the address of
7441 the HI part. The relocation is relative to the LO
7442 part, but mips_elf_calculate_relocation() doesn't know
7443 it address or the difference from the HI part, so
7444 we subtract that difference here. See also the
7445 comment in mips_elf_calculate_relocation(). */
7446 if (r_type == R_MIPS_GNU_REL_HI16)
7447 addend -= (lo16_relocation->r_offset - rel->r_offset);
252b5132 7448 }
b7233c24
MM
7449 else if (r_type == R_MIPS16_GPREL)
7450 {
7451 /* The addend is scrambled in the object file. See
7452 mips_elf_perform_relocation for details on the
7453 format. */
7454 addend = (((addend & 0x1f0000) >> 5)
7455 | ((addend & 0x7e00000) >> 16)
7456 | (addend & 0x1f));
7457 }
252b5132
RH
7458 }
7459 else
7403cb63
MM
7460 addend = rel->r_addend;
7461 }
252b5132 7462
31367b81
MM
7463 if (info->relocateable)
7464 {
7465 Elf_Internal_Sym *sym;
7466 unsigned long r_symndx;
7467
7893e6a2
GK
7468 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)
7469 && bfd_big_endian (input_bfd))
7470 rel->r_offset -= 4;
7471
31367b81 7472 /* Since we're just relocating, all we need to do is copy
0db63c18
MM
7473 the relocations back out to the object file, unless
7474 they're against a section symbol, in which case we need
7475 to adjust by the section offset, or unless they're GP
7476 relative in which case we need to adjust by the amount
7477 that we're adjusting GP in this relocateable object. */
31367b81 7478
b305ef96
UC
7479 if (!mips_elf_local_relocation_p (input_bfd, rel, local_sections,
7480 false))
f1a5f37e 7481 /* There's nothing to do for non-local relocations. */
31367b81
MM
7482 continue;
7483
be3ccd9c 7484 if (r_type == R_MIPS16_GPREL
0db63c18 7485 || r_type == R_MIPS_GPREL16
0af99795
GK
7486 || r_type == R_MIPS_GPREL32
7487 || r_type == R_MIPS_LITERAL)
0db63c18
MM
7488 addend -= (_bfd_get_gp_value (output_bfd)
7489 - _bfd_get_gp_value (input_bfd));
bb2d6cd7
GK
7490 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7491 || r_type == R_MIPS_GNU_REL16_S2)
e7c44218
MM
7492 /* The addend is stored without its two least
7493 significant bits (which are always zero.) In a
7494 non-relocateable link, calculate_relocation will do
7495 this shift; here, we must do it ourselves. */
7496 addend <<= 2;
31367b81 7497
4f2860ca
MM
7498 r_symndx = ELF32_R_SYM (rel->r_info);
7499 sym = local_syms + r_symndx;
7500 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
7501 /* Adjust the addend appropriately. */
7502 addend += local_sections[r_symndx]->output_offset;
be3ccd9c 7503
f1a5f37e
MM
7504 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
7505 then we only want to write out the high-order 16 bits.
7506 The subsequent R_MIPS_LO16 will handle the low-order bits. */
bb2d6cd7
GK
7507 if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16
7508 || r_type == R_MIPS_GNU_REL_HI16)
23b255aa 7509 addend = mips_elf_high (addend);
5a44662b
MM
7510 /* If the relocation is for an R_MIPS_26 relocation, then
7511 the two low-order bits are not stored in the object file;
7512 they are implicitly zero. */
bb2d6cd7
GK
7513 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7514 || r_type == R_MIPS_GNU_REL16_S2)
5a44662b 7515 addend >>= 2;
f1a5f37e 7516
31367b81
MM
7517 if (rela_relocation_p)
7518 /* If this is a RELA relocation, just update the addend.
bb2d6cd7 7519 We have to cast away constness for REL. */
31367b81
MM
7520 rel->r_addend = addend;
7521 else
7522 {
7523 /* Otherwise, we have to write the value back out. Note
7524 that we use the source mask, rather than the
7525 destination mask because the place to which we are
7526 writing will be source of the addend in the final
7527 link. */
7528 addend &= howto->src_mask;
7893e6a2
GK
7529
7530 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7531 /* See the comment above about using R_MIPS_64 in the 32-bit
7532 ABI. Here, we need to update the addend. It would be
7533 possible to get away with just using the R_MIPS_32 reloc
7534 but for endianness. */
7535 {
7536 bfd_vma sign_bits;
7537 bfd_vma low_bits;
7538 bfd_vma high_bits;
be3ccd9c 7539
fc633e5b 7540 if (addend & ((bfd_vma) 1 << 31))
1e738b87 7541#ifdef BFD64
fc633e5b 7542 sign_bits = ((bfd_vma) 1 << 32) - 1;
1e738b87
NC
7543#else
7544 sign_bits = -1;
7545#endif
7893e6a2
GK
7546 else
7547 sign_bits = 0;
be3ccd9c 7548
7893e6a2
GK
7549 /* If we don't know that we have a 64-bit type,
7550 do two separate stores. */
7551 if (bfd_big_endian (input_bfd))
7552 {
7553 /* Store the sign-bits (which are most significant)
7554 first. */
7555 low_bits = sign_bits;
7556 high_bits = addend;
7557 }
7558 else
7559 {
7560 low_bits = addend;
7561 high_bits = sign_bits;
7562 }
be3ccd9c 7563 bfd_put_32 (input_bfd, low_bits,
7893e6a2 7564 contents + rel->r_offset);
be3ccd9c 7565 bfd_put_32 (input_bfd, high_bits,
7893e6a2
GK
7566 contents + rel->r_offset + 4);
7567 continue;
7568 }
7569
31367b81 7570 if (!mips_elf_perform_relocation (info, howto, rel, addend,
a17aee54 7571 input_bfd, input_section,
31367b81
MM
7572 contents, false))
7573 return false;
7574 }
7575
7576 /* Go on to the next relocation. */
7577 continue;
7578 }
7579
7403cb63
MM
7580 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7581 relocations for the same offset. In that case we are
7582 supposed to treat the output of each relocation as the addend
7583 for the next. */
be3ccd9c 7584 if (rel + 1 < relend
103186c6 7585 && rel->r_offset == rel[1].r_offset
b89db8f2 7586 && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
7403cb63
MM
7587 use_saved_addend_p = true;
7588 else
7589 use_saved_addend_p = false;
7590
7591 /* Figure out what value we are supposed to relocate. */
be3ccd9c 7592 switch (mips_elf_calculate_relocation (output_bfd,
7403cb63
MM
7593 input_bfd,
7594 input_section,
7595 info,
7596 rel,
7597 addend,
7598 howto,
7403cb63
MM
7599 local_syms,
7600 local_sections,
7601 &value,
197b9ca0
MM
7602 &name,
7603 &require_jalx))
7403cb63
MM
7604 {
7605 case bfd_reloc_continue:
7606 /* There's nothing to do. */
7607 continue;
252b5132 7608
7403cb63 7609 case bfd_reloc_undefined:
6387d602 7610 /* mips_elf_calculate_relocation already called the
bb2d6cd7 7611 undefined_symbol callback. There's no real point in
97287574
MM
7612 trying to perform the relocation at this point, so we
7613 just skip ahead to the next relocation. */
7614 continue;
252b5132 7615
7403cb63 7616 case bfd_reloc_notsupported:
7a65545d
DN
7617 msg = _("internal error: unsupported relocation error");
7618 info->callbacks->warning
7619 (info, msg, name, input_bfd, input_section, rel->r_offset);
7620 return false;
252b5132 7621
7403cb63
MM
7622 case bfd_reloc_overflow:
7623 if (use_saved_addend_p)
7624 /* Ignore overflow until we reach the last relocation for
7625 a given location. */
7626 ;
6387d602
ILT
7627 else
7628 {
7629 BFD_ASSERT (name != NULL);
7630 if (! ((*info->callbacks->reloc_overflow)
7631 (info, name, howto->name, (bfd_vma) 0,
7632 input_bfd, input_section, rel->r_offset)))
7633 return false;
7634 }
7403cb63 7635 break;
252b5132 7636
7403cb63
MM
7637 case bfd_reloc_ok:
7638 break;
7639
7640 default:
7641 abort ();
7642 break;
252b5132
RH
7643 }
7644
7403cb63
MM
7645 /* If we've got another relocation for the address, keep going
7646 until we reach the last one. */
7647 if (use_saved_addend_p)
252b5132 7648 {
7403cb63
MM
7649 addend = value;
7650 continue;
252b5132 7651 }
7403cb63 7652
31367b81 7653 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
a3c7651d
MM
7654 /* See the comment above about using R_MIPS_64 in the 32-bit
7655 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7656 that calculated the right value. Now, however, we
7657 sign-extend the 32-bit result to 64-bits, and store it as a
7658 64-bit value. We are especially generous here in that we
7659 go to extreme lengths to support this usage on systems with
7660 only a 32-bit VMA. */
7661 {
a3c7651d
MM
7662 bfd_vma sign_bits;
7663 bfd_vma low_bits;
7664 bfd_vma high_bits;
7665
fc633e5b 7666 if (value & ((bfd_vma) 1 << 31))
1e738b87 7667#ifdef BFD64
fc633e5b 7668 sign_bits = ((bfd_vma) 1 << 32) - 1;
1e738b87
NC
7669#else
7670 sign_bits = -1;
7671#endif
a3c7651d
MM
7672 else
7673 sign_bits = 0;
7674
7893e6a2
GK
7675 /* If we don't know that we have a 64-bit type,
7676 do two separate stores. */
a3c7651d
MM
7677 if (bfd_big_endian (input_bfd))
7678 {
0af99795
GK
7679 /* Undo what we did above. */
7680 rel->r_offset -= 4;
a3c7651d
MM
7681 /* Store the sign-bits (which are most significant)
7682 first. */
7683 low_bits = sign_bits;
7684 high_bits = value;
7685 }
7686 else
7687 {
7688 low_bits = value;
7689 high_bits = sign_bits;
7690 }
be3ccd9c 7691 bfd_put_32 (input_bfd, low_bits,
a3c7651d 7692 contents + rel->r_offset);
be3ccd9c 7693 bfd_put_32 (input_bfd, high_bits,
a3c7651d
MM
7694 contents + rel->r_offset + 4);
7695 continue;
a3c7651d
MM
7696 }
7697
7403cb63 7698 /* Actually perform the relocation. */
be3ccd9c 7699 if (!mips_elf_perform_relocation (info, howto, rel, value, input_bfd,
197b9ca0
MM
7700 input_section, contents,
7701 require_jalx))
7702 return false;
252b5132
RH
7703 }
7704
7705 return true;
7706}
7707
7708/* This hook function is called before the linker writes out a global
7709 symbol. We mark symbols as small common if appropriate. This is
7710 also where we undo the increment of the value for a mips16 symbol. */
7711
103186c6
MM
7712boolean
7713_bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
5f771d47
ILT
7714 bfd *abfd ATTRIBUTE_UNUSED;
7715 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7716 const char *name ATTRIBUTE_UNUSED;
252b5132
RH
7717 Elf_Internal_Sym *sym;
7718 asection *input_sec;
7719{
7720 /* If we see a common symbol, which implies a relocatable link, then
7721 if a symbol was small common in an input file, mark it as small
7722 common in the output file. */
7723 if (sym->st_shndx == SHN_COMMON
7724 && strcmp (input_sec->name, ".scommon") == 0)
7725 sym->st_shndx = SHN_MIPS_SCOMMON;
7726
7727 if (sym->st_other == STO_MIPS16
7728 && (sym->st_value & 1) != 0)
7729 --sym->st_value;
7730
7731 return true;
7732}
7733\f
7734/* Functions for the dynamic linker. */
7735
7736/* The name of the dynamic interpreter. This is put in the .interp
7737 section. */
7738
103186c6
MM
7739#define ELF_DYNAMIC_INTERPRETER(abfd) \
7740 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7741 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7742 : "/usr/lib/libc.so.1")
252b5132
RH
7743
7744/* Create dynamic sections when linking against a dynamic object. */
7745
103186c6
MM
7746boolean
7747_bfd_mips_elf_create_dynamic_sections (abfd, info)
252b5132
RH
7748 bfd *abfd;
7749 struct bfd_link_info *info;
7750{
7751 struct elf_link_hash_entry *h;
7752 flagword flags;
7753 register asection *s;
7754 const char * const *namep;
7755
7756 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7757 | SEC_LINKER_CREATED | SEC_READONLY);
7758
7759 /* Mips ABI requests the .dynamic section to be read only. */
7760 s = bfd_get_section_by_name (abfd, ".dynamic");
7761 if (s != NULL)
7762 {
7763 if (! bfd_set_section_flags (abfd, s, flags))
7764 return false;
7765 }
7766
7767 /* We need to create .got section. */
7768 if (! mips_elf_create_got_section (abfd, info))
7769 return false;
7770
c6142e5d
MM
7771 /* Create the .msym section on IRIX6. It is used by the dynamic
7772 linker to speed up dynamic relocations, and to avoid computing
7773 the ELF hash for symbols. */
7774 if (IRIX_COMPAT (abfd) == ict_irix6
7775 && !mips_elf_create_msym_section (abfd))
7776 return false;
be3ccd9c 7777
252b5132 7778 /* Create .stub section. */
be3ccd9c 7779 if (bfd_get_section_by_name (abfd,
7403cb63 7780 MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL)
252b5132 7781 {
7403cb63 7782 s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd));
252b5132 7783 if (s == NULL
7403cb63 7784 || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
103186c6
MM
7785 || ! bfd_set_section_alignment (abfd, s,
7786 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7787 return false;
7788 }
7789
31a9bdd9 7790 if ((IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
252b5132
RH
7791 && !info->shared
7792 && bfd_get_section_by_name (abfd, ".rld_map") == NULL)
7793 {
7794 s = bfd_make_section (abfd, ".rld_map");
7795 if (s == NULL
dc810e39 7796 || ! bfd_set_section_flags (abfd, s, flags &~ (flagword) SEC_READONLY)
103186c6
MM
7797 || ! bfd_set_section_alignment (abfd, s,
7798 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7799 return false;
7800 }
7801
303f629d
MM
7802 /* On IRIX5, we adjust add some additional symbols and change the
7803 alignments of several sections. There is no ABI documentation
7804 indicating that this is necessary on IRIX6, nor any evidence that
7805 the linker takes such action. */
7806 if (IRIX_COMPAT (abfd) == ict_irix5)
252b5132
RH
7807 {
7808 for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++)
7809 {
7810 h = NULL;
7811 if (! (_bfd_generic_link_add_one_symbol
7812 (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr,
7813 (bfd_vma) 0, (const char *) NULL, false,
7814 get_elf_backend_data (abfd)->collect,
7815 (struct bfd_link_hash_entry **) &h)))
7816 return false;
be3ccd9c 7817 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7818 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7819 h->type = STT_SECTION;
7820
7821 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7822 return false;
7823 }
7824
7825 /* We need to create a .compact_rel section. */
f7cb7d68 7826 if (SGI_COMPAT (abfd))
be3ccd9c
KH
7827 {
7828 if (!mips_elf_create_compact_rel_section (abfd, info))
f7cb7d68 7829 return false;
be3ccd9c 7830 }
252b5132
RH
7831
7832 /* Change aligments of some sections. */
7833 s = bfd_get_section_by_name (abfd, ".hash");
7834 if (s != NULL)
7835 bfd_set_section_alignment (abfd, s, 4);
7836 s = bfd_get_section_by_name (abfd, ".dynsym");
7837 if (s != NULL)
7838 bfd_set_section_alignment (abfd, s, 4);
7839 s = bfd_get_section_by_name (abfd, ".dynstr");
7840 if (s != NULL)
7841 bfd_set_section_alignment (abfd, s, 4);
7842 s = bfd_get_section_by_name (abfd, ".reginfo");
7843 if (s != NULL)
7844 bfd_set_section_alignment (abfd, s, 4);
7845 s = bfd_get_section_by_name (abfd, ".dynamic");
7846 if (s != NULL)
7847 bfd_set_section_alignment (abfd, s, 4);
7848 }
7849
7850 if (!info->shared)
7851 {
7852 h = NULL;
f7cb7d68 7853 if (SGI_COMPAT (abfd))
be3ccd9c
KH
7854 {
7855 if (!(_bfd_generic_link_add_one_symbol
7856 (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr,
7857 (bfd_vma) 0, (const char *) NULL, false,
7858 get_elf_backend_data (abfd)->collect,
7859 (struct bfd_link_hash_entry **) &h)))
f7cb7d68 7860 return false;
be3ccd9c 7861 }
f7cb7d68 7862 else
be3ccd9c
KH
7863 {
7864 /* For normal mips it is _DYNAMIC_LINKING. */
7865 if (!(_bfd_generic_link_add_one_symbol
7866 (info, abfd, "_DYNAMIC_LINKING", BSF_GLOBAL,
7867 bfd_abs_section_ptr, (bfd_vma) 0, (const char *) NULL, false,
7868 get_elf_backend_data (abfd)->collect,
7869 (struct bfd_link_hash_entry **) &h)))
7870 return false;
7871 }
7872 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7873 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7874 h->type = STT_SECTION;
7875
7876 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7877 return false;
7878
7879 if (! mips_elf_hash_table (info)->use_rld_obj_head)
7880 {
7881 /* __rld_map is a four byte word located in the .data section
7882 and is filled in by the rtld to contain a pointer to
7883 the _r_debug structure. Its symbol value will be set in
7884 mips_elf_finish_dynamic_symbol. */
7885 s = bfd_get_section_by_name (abfd, ".rld_map");
7886 BFD_ASSERT (s != NULL);
7887
7888 h = NULL;
be3ccd9c
KH
7889 if (SGI_COMPAT (abfd))
7890 {
7891 if (!(_bfd_generic_link_add_one_symbol
7892 (info, abfd, "__rld_map", BSF_GLOBAL, s,
7893 (bfd_vma) 0, (const char *) NULL, false,
7894 get_elf_backend_data (abfd)->collect,
7895 (struct bfd_link_hash_entry **) &h)))
7896 return false;
7897 }
7898 else
7899 {
7900 /* For normal mips the symbol is __RLD_MAP. */
7901 if (!(_bfd_generic_link_add_one_symbol
7902 (info, abfd, "__RLD_MAP", BSF_GLOBAL, s,
7903 (bfd_vma) 0, (const char *) NULL, false,
7904 get_elf_backend_data (abfd)->collect,
7905 (struct bfd_link_hash_entry **) &h)))
7906 return false;
7907 }
7908 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7909 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7910 h->type = STT_OBJECT;
7911
7912 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7913 return false;
7914 }
7915 }
7916
7917 return true;
7918}
7919
7920/* Create the .compact_rel section. */
7921
7922static boolean
7923mips_elf_create_compact_rel_section (abfd, info)
7924 bfd *abfd;
5f771d47 7925 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH
7926{
7927 flagword flags;
7928 register asection *s;
7929
7930 if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL)
7931 {
7932 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED
7933 | SEC_READONLY);
7934
7935 s = bfd_make_section (abfd, ".compact_rel");
7936 if (s == NULL
7937 || ! bfd_set_section_flags (abfd, s, flags)
103186c6
MM
7938 || ! bfd_set_section_alignment (abfd, s,
7939 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7940 return false;
7941
7942 s->_raw_size = sizeof (Elf32_External_compact_rel);
7943 }
7944
7945 return true;
7946}
7947
be3ccd9c 7948/* Create the .got section to hold the global offset table. */
252b5132
RH
7949
7950static boolean
7951mips_elf_create_got_section (abfd, info)
7952 bfd *abfd;
7953 struct bfd_link_info *info;
7954{
7955 flagword flags;
7956 register asection *s;
7957 struct elf_link_hash_entry *h;
7958 struct mips_got_info *g;
dc810e39 7959 bfd_size_type amt;
252b5132
RH
7960
7961 /* This function may be called more than once. */
103186c6 7962 if (mips_elf_got_section (abfd))
252b5132
RH
7963 return true;
7964
7965 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7966 | SEC_LINKER_CREATED);
7967
7968 s = bfd_make_section (abfd, ".got");
7969 if (s == NULL
7970 || ! bfd_set_section_flags (abfd, s, flags)
7971 || ! bfd_set_section_alignment (abfd, s, 4))
7972 return false;
7973
7974 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7975 linker script because we don't want to define the symbol if we
7976 are not creating a global offset table. */
7977 h = NULL;
7978 if (! (_bfd_generic_link_add_one_symbol
7979 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
7980 (bfd_vma) 0, (const char *) NULL, false,
7981 get_elf_backend_data (abfd)->collect,
7982 (struct bfd_link_hash_entry **) &h)))
7983 return false;
be3ccd9c 7984 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7985 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7986 h->type = STT_OBJECT;
7987
7988 if (info->shared
7989 && ! bfd_elf32_link_record_dynamic_symbol (info, h))
7990 return false;
7991
7992 /* The first several global offset table entries are reserved. */
103186c6 7993 s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd);
252b5132 7994
dc810e39
AM
7995 amt = sizeof (struct mips_got_info);
7996 g = (struct mips_got_info *) bfd_alloc (abfd, amt);
252b5132
RH
7997 if (g == NULL)
7998 return false;
7403cb63 7999 g->global_gotsym = NULL;
252b5132
RH
8000 g->local_gotno = MIPS_RESERVED_GOTNO;
8001 g->assigned_gotno = MIPS_RESERVED_GOTNO;
8002 if (elf_section_data (s) == NULL)
8003 {
dc810e39
AM
8004 amt = sizeof (struct bfd_elf_section_data);
8005 s->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
252b5132
RH
8006 if (elf_section_data (s) == NULL)
8007 return false;
8008 }
8009 elf_section_data (s)->tdata = (PTR) g;
be3ccd9c 8010 elf_section_data (s)->this_hdr.sh_flags
7403cb63 8011 |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
252b5132
RH
8012
8013 return true;
8014}
8015
c6142e5d
MM
8016/* Returns the .msym section for ABFD, creating it if it does not
8017 already exist. Returns NULL to indicate error. */
8018
8019static asection *
8020mips_elf_create_msym_section (abfd)
8021 bfd *abfd;
8022{
8023 asection *s;
8024
8025 s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
be3ccd9c 8026 if (!s)
c6142e5d
MM
8027 {
8028 s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
8029 if (!s
be3ccd9c 8030 || !bfd_set_section_flags (abfd, s,
c6142e5d
MM
8031 SEC_ALLOC
8032 | SEC_LOAD
8033 | SEC_HAS_CONTENTS
be3ccd9c 8034 | SEC_LINKER_CREATED
c6142e5d 8035 | SEC_READONLY)
103186c6
MM
8036 || !bfd_set_section_alignment (abfd, s,
8037 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
c6142e5d
MM
8038 return NULL;
8039 }
8040
8041 return s;
8042}
8043
103186c6
MM
8044/* Add room for N relocations to the .rel.dyn section in ABFD. */
8045
8046static void
8047mips_elf_allocate_dynamic_relocations (abfd, n)
8048 bfd *abfd;
8049 unsigned int n;
8050{
8051 asection *s;
8052
8053 s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd));
8054 BFD_ASSERT (s != NULL);
be3ccd9c 8055
103186c6
MM
8056 if (s->_raw_size == 0)
8057 {
be3ccd9c 8058 /* Make room for a null element. */
103186c6
MM
8059 s->_raw_size += MIPS_ELF_REL_SIZE (abfd);
8060 ++s->reloc_count;
8061 }
8062 s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd);
8063}
8064
252b5132
RH
8065/* Look through the relocs for a section during the first phase, and
8066 allocate space in the global offset table. */
8067
103186c6
MM
8068boolean
8069_bfd_mips_elf_check_relocs (abfd, info, sec, relocs)
252b5132
RH
8070 bfd *abfd;
8071 struct bfd_link_info *info;
8072 asection *sec;
8073 const Elf_Internal_Rela *relocs;
8074{
8075 const char *name;
8076 bfd *dynobj;
8077 Elf_Internal_Shdr *symtab_hdr;
8078 struct elf_link_hash_entry **sym_hashes;
8079 struct mips_got_info *g;
8080 size_t extsymoff;
8081 const Elf_Internal_Rela *rel;
8082 const Elf_Internal_Rela *rel_end;
8083 asection *sgot;
8084 asection *sreloc;
103186c6 8085 struct elf_backend_data *bed;
252b5132
RH
8086
8087 if (info->relocateable)
8088 return true;
8089
8090 dynobj = elf_hash_table (info)->dynobj;
8091 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8092 sym_hashes = elf_sym_hashes (abfd);
8093 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
8094
8095 /* Check for the mips16 stub sections. */
8096
8097 name = bfd_get_section_name (abfd, sec);
8098 if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0)
8099 {
8100 unsigned long r_symndx;
8101
8102 /* Look at the relocation information to figure out which symbol
8103 this is for. */
8104
8105 r_symndx = ELF32_R_SYM (relocs->r_info);
8106
8107 if (r_symndx < extsymoff
8108 || sym_hashes[r_symndx - extsymoff] == NULL)
8109 {
8110 asection *o;
8111
8112 /* This stub is for a local symbol. This stub will only be
8113 needed if there is some relocation in this BFD, other
8114 than a 16 bit function call, which refers to this symbol. */
8115 for (o = abfd->sections; o != NULL; o = o->next)
8116 {
8117 Elf_Internal_Rela *sec_relocs;
8118 const Elf_Internal_Rela *r, *rend;
8119
8120 /* We can ignore stub sections when looking for relocs. */
8121 if ((o->flags & SEC_RELOC) == 0
8122 || o->reloc_count == 0
8123 || strncmp (bfd_get_section_name (abfd, o), FN_STUB,
8124 sizeof FN_STUB - 1) == 0
8125 || strncmp (bfd_get_section_name (abfd, o), CALL_STUB,
8126 sizeof CALL_STUB - 1) == 0
8127 || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB,
8128 sizeof CALL_FP_STUB - 1) == 0)
8129 continue;
8130
8131 sec_relocs = (_bfd_elf32_link_read_relocs
8132 (abfd, o, (PTR) NULL,
8133 (Elf_Internal_Rela *) NULL,
8134 info->keep_memory));
8135 if (sec_relocs == NULL)
8136 return false;
8137
8138 rend = sec_relocs + o->reloc_count;
8139 for (r = sec_relocs; r < rend; r++)
8140 if (ELF32_R_SYM (r->r_info) == r_symndx
8141 && ELF32_R_TYPE (r->r_info) != R_MIPS16_26)
8142 break;
8143
8144 if (! info->keep_memory)
8145 free (sec_relocs);
8146
8147 if (r < rend)
8148 break;
8149 }
8150
8151 if (o == NULL)
8152 {
8153 /* There is no non-call reloc for this stub, so we do
8154 not need it. Since this function is called before
8155 the linker maps input sections to output sections, we
8156 can easily discard it by setting the SEC_EXCLUDE
8157 flag. */
8158 sec->flags |= SEC_EXCLUDE;
8159 return true;
8160 }
8161
8162 /* Record this stub in an array of local symbol stubs for
be3ccd9c 8163 this BFD. */
252b5132
RH
8164 if (elf_tdata (abfd)->local_stubs == NULL)
8165 {
8166 unsigned long symcount;
8167 asection **n;
dc810e39 8168 bfd_size_type amt;
252b5132
RH
8169
8170 if (elf_bad_symtab (abfd))
d9bc7a44 8171 symcount = NUM_SHDR_ENTRIES (symtab_hdr);
252b5132
RH
8172 else
8173 symcount = symtab_hdr->sh_info;
dc810e39
AM
8174 amt = symcount * sizeof (asection *);
8175 n = (asection **) bfd_zalloc (abfd, amt);
252b5132
RH
8176 if (n == NULL)
8177 return false;
8178 elf_tdata (abfd)->local_stubs = n;
8179 }
8180
8181 elf_tdata (abfd)->local_stubs[r_symndx] = sec;
8182
8183 /* We don't need to set mips16_stubs_seen in this case.
8184 That flag is used to see whether we need to look through
8185 the global symbol table for stubs. We don't need to set
8186 it here, because we just have a local stub. */
8187 }
8188 else
8189 {
8190 struct mips_elf_link_hash_entry *h;
8191
8192 h = ((struct mips_elf_link_hash_entry *)
8193 sym_hashes[r_symndx - extsymoff]);
8194
8195 /* H is the symbol this stub is for. */
8196
8197 h->fn_stub = sec;
8198 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8199 }
8200 }
8201 else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
8202 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8203 {
8204 unsigned long r_symndx;
8205 struct mips_elf_link_hash_entry *h;
8206 asection **loc;
8207
8208 /* Look at the relocation information to figure out which symbol
8209 this is for. */
8210
8211 r_symndx = ELF32_R_SYM (relocs->r_info);
8212
8213 if (r_symndx < extsymoff
8214 || sym_hashes[r_symndx - extsymoff] == NULL)
8215 {
8216 /* This stub was actually built for a static symbol defined
8217 in the same file. We assume that all static symbols in
8218 mips16 code are themselves mips16, so we can simply
8219 discard this stub. Since this function is called before
8220 the linker maps input sections to output sections, we can
8221 easily discard it by setting the SEC_EXCLUDE flag. */
8222 sec->flags |= SEC_EXCLUDE;
8223 return true;
8224 }
8225
8226 h = ((struct mips_elf_link_hash_entry *)
8227 sym_hashes[r_symndx - extsymoff]);
8228
8229 /* H is the symbol this stub is for. */
8230
8231 if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8232 loc = &h->call_fp_stub;
8233 else
8234 loc = &h->call_stub;
8235
8236 /* If we already have an appropriate stub for this function, we
8237 don't need another one, so we can discard this one. Since
8238 this function is called before the linker maps input sections
8239 to output sections, we can easily discard it by setting the
8240 SEC_EXCLUDE flag. We can also discard this section if we
8241 happen to already know that this is a mips16 function; it is
8242 not necessary to check this here, as it is checked later, but
8243 it is slightly faster to check now. */
8244 if (*loc != NULL || h->root.other == STO_MIPS16)
8245 {
8246 sec->flags |= SEC_EXCLUDE;
8247 return true;
8248 }
8249
8250 *loc = sec;
8251 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8252 }
8253
8254 if (dynobj == NULL)
8255 {
8256 sgot = NULL;
8257 g = NULL;
8258 }
8259 else
8260 {
103186c6 8261 sgot = mips_elf_got_section (dynobj);
252b5132
RH
8262 if (sgot == NULL)
8263 g = NULL;
8264 else
8265 {
8266 BFD_ASSERT (elf_section_data (sgot) != NULL);
8267 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
8268 BFD_ASSERT (g != NULL);
8269 }
8270 }
8271
8272 sreloc = NULL;
103186c6
MM
8273 bed = get_elf_backend_data (abfd);
8274 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
8275 for (rel = relocs; rel < rel_end; ++rel)
252b5132
RH
8276 {
8277 unsigned long r_symndx;
dc810e39 8278 unsigned int r_type;
252b5132
RH
8279 struct elf_link_hash_entry *h;
8280
8281 r_symndx = ELF32_R_SYM (rel->r_info);
7403cb63 8282 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
8283
8284 if (r_symndx < extsymoff)
8285 h = NULL;
d9bc7a44 8286 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
7a3120d9 8287 {
8f615d07
AM
8288 (*_bfd_error_handler)
8289 (_("%s: Malformed reloc detected for section %s"),
8290 bfd_archive_filename (abfd), name);
7a3120d9
NC
8291 bfd_set_error (bfd_error_bad_value);
8292 return false;
8293 }
252b5132
RH
8294 else
8295 {
8296 h = sym_hashes[r_symndx - extsymoff];
8297
8298 /* This may be an indirect symbol created because of a version. */
8299 if (h != NULL)
8300 {
8301 while (h->root.type == bfd_link_hash_indirect)
8302 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8303 }
8304 }
8305
8306 /* Some relocs require a global offset table. */
8307 if (dynobj == NULL || sgot == NULL)
8308 {
7403cb63 8309 switch (r_type)
252b5132
RH
8310 {
8311 case R_MIPS_GOT16:
8312 case R_MIPS_CALL16:
8313 case R_MIPS_CALL_HI16:
8314 case R_MIPS_CALL_LO16:
8315 case R_MIPS_GOT_HI16:
8316 case R_MIPS_GOT_LO16:
435394bf
MM
8317 case R_MIPS_GOT_PAGE:
8318 case R_MIPS_GOT_OFST:
8319 case R_MIPS_GOT_DISP:
252b5132
RH
8320 if (dynobj == NULL)
8321 elf_hash_table (info)->dynobj = dynobj = abfd;
8322 if (! mips_elf_create_got_section (dynobj, info))
8323 return false;
7403cb63 8324 g = mips_elf_got_info (dynobj, &sgot);
252b5132
RH
8325 break;
8326
8327 case R_MIPS_32:
8328 case R_MIPS_REL32:
a3c7651d 8329 case R_MIPS_64:
252b5132
RH
8330 if (dynobj == NULL
8331 && (info->shared || h != NULL)
8332 && (sec->flags & SEC_ALLOC) != 0)
8333 elf_hash_table (info)->dynobj = dynobj = abfd;
8334 break;
8335
8336 default:
8337 break;
8338 }
8339 }
8340
7403cb63
MM
8341 if (!h && (r_type == R_MIPS_CALL_LO16
8342 || r_type == R_MIPS_GOT_LO16
9458945f 8343 || r_type == R_MIPS_GOT_DISP))
252b5132 8344 {
7403cb63 8345 /* We may need a local GOT entry for this relocation. We
97287574
MM
8346 don't count R_MIPS_GOT_PAGE because we can estimate the
8347 maximum number of pages needed by looking at the size of
9117d219
NC
8348 the segment. Similar comments apply to R_MIPS_GOT16 and
8349 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
8350 R_MIPS_CALL_HI16 because these are always followed by an
8351 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
7403cb63
MM
8352
8353 This estimation is very conservative since we can merge
8354 duplicate entries in the GOT. In order to be less
8355 conservative, we could actually build the GOT here,
8356 rather than in relocate_section. */
8357 g->local_gotno++;
a3c7651d 8358 sgot->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
7403cb63 8359 }
252b5132 8360
7403cb63
MM
8361 switch (r_type)
8362 {
8363 case R_MIPS_CALL16:
252b5132
RH
8364 if (h == NULL)
8365 {
8366 (*_bfd_error_handler)
8367 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
8f615d07 8368 bfd_archive_filename (abfd), (unsigned long) rel->r_offset);
252b5132
RH
8369 bfd_set_error (bfd_error_bad_value);
8370 return false;
8371 }
7403cb63 8372 /* Fall through. */
252b5132 8373
7403cb63
MM
8374 case R_MIPS_CALL_HI16:
8375 case R_MIPS_CALL_LO16:
5a44662b
MM
8376 if (h != NULL)
8377 {
8378 /* This symbol requires a global offset table entry. */
8379 if (!mips_elf_record_global_got_symbol (h, info, g))
8380 return false;
252b5132 8381
5a44662b
MM
8382 /* We need a stub, not a plt entry for the undefined
8383 function. But we record it as if it needs plt. See
8384 elf_adjust_dynamic_symbol in elflink.h. */
8385 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
8386 h->type = STT_FUNC;
8387 }
252b5132
RH
8388 break;
8389
8390 case R_MIPS_GOT16:
8391 case R_MIPS_GOT_HI16:
8392 case R_MIPS_GOT_LO16:
7403cb63 8393 case R_MIPS_GOT_DISP:
252b5132 8394 /* This symbol requires a global offset table entry. */
7403cb63
MM
8395 if (h && !mips_elf_record_global_got_symbol (h, info, g))
8396 return false;
252b5132
RH
8397 break;
8398
8399 case R_MIPS_32:
8400 case R_MIPS_REL32:
a3c7651d 8401 case R_MIPS_64:
252b5132
RH
8402 if ((info->shared || h != NULL)
8403 && (sec->flags & SEC_ALLOC) != 0)
8404 {
8405 if (sreloc == NULL)
8406 {
dc810e39 8407 const char *dname = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj);
252b5132 8408
dc810e39 8409 sreloc = bfd_get_section_by_name (dynobj, dname);
252b5132
RH
8410 if (sreloc == NULL)
8411 {
dc810e39 8412 sreloc = bfd_make_section (dynobj, dname);
252b5132
RH
8413 if (sreloc == NULL
8414 || ! bfd_set_section_flags (dynobj, sreloc,
8415 (SEC_ALLOC
8416 | SEC_LOAD
8417 | SEC_HAS_CONTENTS
8418 | SEC_IN_MEMORY
8419 | SEC_LINKER_CREATED
8420 | SEC_READONLY))
8421 || ! bfd_set_section_alignment (dynobj, sreloc,
8422 4))
8423 return false;
8424 }
8425 }
43917054 8426#define MIPS_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
252b5132 8427 if (info->shared)
43917054
L
8428 {
8429 /* When creating a shared object, we must copy these
8430 reloc types into the output file as R_MIPS_REL32
8431 relocs. We make room for this reloc in the
8432 .rel.dyn reloc section. */
8433 mips_elf_allocate_dynamic_relocations (dynobj, 1);
8434 if ((sec->flags & MIPS_READONLY_SECTION)
8435 == MIPS_READONLY_SECTION)
8436 /* We tell the dynamic linker that there are
8437 relocations against the text segment. */
8438 info->flags |= DF_TEXTREL;
8439 }
252b5132
RH
8440 else
8441 {
8442 struct mips_elf_link_hash_entry *hmips;
8443
8444 /* We only need to copy this reloc if the symbol is
8445 defined in a dynamic object. */
8446 hmips = (struct mips_elf_link_hash_entry *) h;
a3c7651d 8447 ++hmips->possibly_dynamic_relocs;
43917054
L
8448 if ((sec->flags & MIPS_READONLY_SECTION)
8449 == MIPS_READONLY_SECTION)
8450 /* We need it to tell the dynamic linker if there
8451 are relocations against the text segment. */
8452 hmips->readonly_reloc = true;
252b5132 8453 }
be3ccd9c 8454
7403cb63
MM
8455 /* Even though we don't directly need a GOT entry for
8456 this symbol, a symbol must have a dynamic symbol
5499724a 8457 table index greater that DT_MIPS_GOTSYM if there are
7403cb63 8458 dynamic relocations against it. */
7b1f1231
MM
8459 if (h != NULL
8460 && !mips_elf_record_global_got_symbol (h, info, g))
7403cb63 8461 return false;
252b5132
RH
8462 }
8463
313ba8d6 8464 if (SGI_COMPAT (abfd))
252b5132
RH
8465 mips_elf_hash_table (info)->compact_rel_size +=
8466 sizeof (Elf32_External_crinfo);
252b5132
RH
8467 break;
8468
8469 case R_MIPS_26:
8470 case R_MIPS_GPREL16:
8471 case R_MIPS_LITERAL:
8472 case R_MIPS_GPREL32:
313ba8d6 8473 if (SGI_COMPAT (abfd))
252b5132
RH
8474 mips_elf_hash_table (info)->compact_rel_size +=
8475 sizeof (Elf32_External_crinfo);
8476 break;
8477
8478 /* This relocation describes the C++ object vtable hierarchy.
8479 Reconstruct it for later use during GC. */
8480 case R_MIPS_GNU_VTINHERIT:
8481 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
8482 return false;
8483 break;
8484
8485 /* This relocation describes which C++ vtable entries are actually
8486 used. Record for later use during GC. */
8487 case R_MIPS_GNU_VTENTRY:
8488 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
8489 return false;
8490 break;
8491
8492 default:
8493 break;
8494 }
8495
9117d219
NC
8496 /* We must not create a stub for a symbol that has relocations
8497 related to taking the function's address. */
8498 switch (r_type)
8499 {
8500 default:
8501 if (h != NULL)
8502 {
8503 struct mips_elf_link_hash_entry *mh;
8504
8505 mh = (struct mips_elf_link_hash_entry *) h;
8506 mh->no_fn_stub = true;
8507 }
8508 break;
8509 case R_MIPS_CALL16:
8510 case R_MIPS_CALL_HI16:
8511 case R_MIPS_CALL_LO16:
8512 break;
8513 }
8514
252b5132
RH
8515 /* If this reloc is not a 16 bit call, and it has a global
8516 symbol, then we will need the fn_stub if there is one.
be3ccd9c 8517 References from a stub section do not count. */
252b5132 8518 if (h != NULL
7403cb63 8519 && r_type != R_MIPS16_26
252b5132
RH
8520 && strncmp (bfd_get_section_name (abfd, sec), FN_STUB,
8521 sizeof FN_STUB - 1) != 0
8522 && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB,
8523 sizeof CALL_STUB - 1) != 0
8524 && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB,
8525 sizeof CALL_FP_STUB - 1) != 0)
8526 {
8527 struct mips_elf_link_hash_entry *mh;
8528
8529 mh = (struct mips_elf_link_hash_entry *) h;
8530 mh->need_fn_stub = true;
8531 }
8532 }
8533
8534 return true;
8535}
8536
8537/* Return the section that should be marked against GC for a given
8538 relocation. */
8539
103186c6
MM
8540asection *
8541_bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
252b5132 8542 bfd *abfd;
5f771d47 8543 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH
8544 Elf_Internal_Rela *rel;
8545 struct elf_link_hash_entry *h;
8546 Elf_Internal_Sym *sym;
8547{
8548 /* ??? Do mips16 stub sections need to be handled special? */
8549
8550 if (h != NULL)
8551 {
8552 switch (ELF32_R_TYPE (rel->r_info))
8553 {
8554 case R_MIPS_GNU_VTINHERIT:
8555 case R_MIPS_GNU_VTENTRY:
8556 break;
8557
8558 default:
8559 switch (h->root.type)
8560 {
8561 case bfd_link_hash_defined:
8562 case bfd_link_hash_defweak:
8563 return h->root.u.def.section;
8564
8565 case bfd_link_hash_common:
8566 return h->root.u.c.p->section;
8567
8568 default:
8569 break;
8570 }
8571 }
8572 }
8573 else
8574 {
9ad5cbcf 8575 return bfd_section_from_elf_index (abfd, sym->st_shndx);
252b5132
RH
8576 }
8577
8578 return NULL;
8579}
8580
8581/* Update the got entry reference counts for the section being removed. */
8582
103186c6
MM
8583boolean
8584_bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
5f771d47
ILT
8585 bfd *abfd ATTRIBUTE_UNUSED;
8586 struct bfd_link_info *info ATTRIBUTE_UNUSED;
8587 asection *sec ATTRIBUTE_UNUSED;
8588 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
252b5132
RH
8589{
8590#if 0
8591 Elf_Internal_Shdr *symtab_hdr;
8592 struct elf_link_hash_entry **sym_hashes;
8593 bfd_signed_vma *local_got_refcounts;
8594 const Elf_Internal_Rela *rel, *relend;
8595 unsigned long r_symndx;
8596 struct elf_link_hash_entry *h;
8597
8598 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8599 sym_hashes = elf_sym_hashes (abfd);
8600 local_got_refcounts = elf_local_got_refcounts (abfd);
8601
8602 relend = relocs + sec->reloc_count;
8603 for (rel = relocs; rel < relend; rel++)
8604 switch (ELF32_R_TYPE (rel->r_info))
8605 {
8606 case R_MIPS_GOT16:
8607 case R_MIPS_CALL16:
8608 case R_MIPS_CALL_HI16:
8609 case R_MIPS_CALL_LO16:
8610 case R_MIPS_GOT_HI16:
8611 case R_MIPS_GOT_LO16:
8612 /* ??? It would seem that the existing MIPS code does no sort
8613 of reference counting or whatnot on its GOT and PLT entries,
8614 so it is not possible to garbage collect them at this time. */
be3ccd9c 8615 break;
252b5132
RH
8616
8617 default:
8618 break;
8619 }
8620#endif
8621
8622 return true;
8623}
8624
8a20f077
UC
8625/* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8626 hiding the old indirect symbol. Process additional relocation
58e3d09d 8627 information. Also called for weakdefs, in which case we just let
8ea52284 8628 _bfd_elf_link_hash_copy_indirect copy the flags for us. */
8a20f077 8629
9e80ff3a 8630static void
8a20f077
UC
8631_bfd_mips_elf_copy_indirect_symbol (dir, ind)
8632 struct elf_link_hash_entry *dir, *ind;
8633{
8634 struct mips_elf_link_hash_entry *dirmips, *indmips;
8635
8636 _bfd_elf_link_hash_copy_indirect (dir, ind);
8637
1e370bd2 8638 if (ind->root.type != bfd_link_hash_indirect)
58e3d09d
AM
8639 return;
8640
8a20f077
UC
8641 dirmips = (struct mips_elf_link_hash_entry *) dir;
8642 indmips = (struct mips_elf_link_hash_entry *) ind;
8643 dirmips->possibly_dynamic_relocs += indmips->possibly_dynamic_relocs;
43917054
L
8644 if (indmips->readonly_reloc)
8645 dirmips->readonly_reloc = true;
8a20f077
UC
8646 if (dirmips->min_dyn_reloc_index == 0
8647 || (indmips->min_dyn_reloc_index != 0
be3ccd9c 8648 && indmips->min_dyn_reloc_index < dirmips->min_dyn_reloc_index))
8a20f077 8649 dirmips->min_dyn_reloc_index = indmips->min_dyn_reloc_index;
9117d219
NC
8650 if (indmips->no_fn_stub)
8651 dirmips->no_fn_stub = true;
8a20f077
UC
8652}
8653
252b5132
RH
8654/* Adjust a symbol defined by a dynamic object and referenced by a
8655 regular object. The current definition is in some section of the
8656 dynamic object, but we're not including those sections. We have to
8657 change the definition to something the rest of the link can
8658 understand. */
8659
103186c6
MM
8660boolean
8661_bfd_mips_elf_adjust_dynamic_symbol (info, h)
252b5132
RH
8662 struct bfd_link_info *info;
8663 struct elf_link_hash_entry *h;
8664{
8665 bfd *dynobj;
8666 struct mips_elf_link_hash_entry *hmips;
8667 asection *s;
8668
8669 dynobj = elf_hash_table (info)->dynobj;
8670
8671 /* Make sure we know what is going on here. */
8672 BFD_ASSERT (dynobj != NULL
8673 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
8674 || h->weakdef != NULL
8675 || ((h->elf_link_hash_flags
8676 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8677 && (h->elf_link_hash_flags
8678 & ELF_LINK_HASH_REF_REGULAR) != 0
8679 && (h->elf_link_hash_flags
8680 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
8681
8682 /* If this symbol is defined in a dynamic object, we need to copy
8683 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8684 file. */
8685 hmips = (struct mips_elf_link_hash_entry *) h;
8686 if (! info->relocateable
a3c7651d 8687 && hmips->possibly_dynamic_relocs != 0
2bab9785 8688 && (h->root.type == bfd_link_hash_defweak
dc810e39 8689 || (h->elf_link_hash_flags
2bab9785 8690 & ELF_LINK_HASH_DEF_REGULAR) == 0))
43917054
L
8691 {
8692 mips_elf_allocate_dynamic_relocations (dynobj,
8693 hmips->possibly_dynamic_relocs);
8694 if (hmips->readonly_reloc)
8695 /* We tell the dynamic linker that there are relocations
8696 against the text segment. */
8697 info->flags |= DF_TEXTREL;
8698 }
252b5132 8699
9117d219
NC
8700 /* For a function, create a stub, if allowed. */
8701 if (! hmips->no_fn_stub
8702 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
252b5132
RH
8703 {
8704 if (! elf_hash_table (info)->dynamic_sections_created)
8705 return true;
8706
8707 /* If this symbol is not defined in a regular file, then set
8708 the symbol to the stub location. This is required to make
8709 function pointers compare as equal between the normal
8710 executable and the shared library. */
8711 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
8712 {
8713 /* We need .stub section. */
be3ccd9c 8714 s = bfd_get_section_by_name (dynobj,
303f629d 8715 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
8716 BFD_ASSERT (s != NULL);
8717
8718 h->root.u.def.section = s;
8719 h->root.u.def.value = s->_raw_size;
8720
8721 /* XXX Write this stub address somewhere. */
8722 h->plt.offset = s->_raw_size;
8723
8724 /* Make room for this stub code. */
8725 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8726
8727 /* The last half word of the stub will be filled with the index
8728 of this symbol in .dynsym section. */
8729 return true;
8730 }
8731 }
f7cb7d68 8732 else if ((h->type == STT_FUNC)
be3ccd9c 8733 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
f7cb7d68
UC
8734 {
8735 /* This will set the entry for this symbol in the GOT to 0, and
be3ccd9c 8736 the dynamic linker will take care of this. */
f7cb7d68
UC
8737 h->root.u.def.value = 0;
8738 return true;
8739 }
252b5132
RH
8740
8741 /* If this is a weak symbol, and there is a real definition, the
8742 processor independent code will have arranged for us to see the
8743 real definition first, and we can just use the same value. */
8744 if (h->weakdef != NULL)
8745 {
8746 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
8747 || h->weakdef->root.type == bfd_link_hash_defweak);
8748 h->root.u.def.section = h->weakdef->root.u.def.section;
8749 h->root.u.def.value = h->weakdef->root.u.def.value;
8750 return true;
8751 }
8752
8753 /* This is a reference to a symbol defined by a dynamic object which
8754 is not a function. */
8755
8756 return true;
8757}
8758
8759/* This function is called after all the input files have been read,
8760 and the input sections have been assigned to output sections. We
8761 check for any mips16 stub sections that we can discard. */
8762
8763static boolean mips_elf_check_mips16_stubs
8764 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
8765
103186c6
MM
8766boolean
8767_bfd_mips_elf_always_size_sections (output_bfd, info)
252b5132
RH
8768 bfd *output_bfd;
8769 struct bfd_link_info *info;
8770{
8771 asection *ri;
8772
8773 /* The .reginfo section has a fixed size. */
8774 ri = bfd_get_section_by_name (output_bfd, ".reginfo");
8775 if (ri != NULL)
dc810e39
AM
8776 bfd_set_section_size (output_bfd, ri,
8777 (bfd_size_type) sizeof (Elf32_External_RegInfo));
252b5132
RH
8778
8779 if (info->relocateable
8780 || ! mips_elf_hash_table (info)->mips16_stubs_seen)
8781 return true;
8782
8783 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
8784 mips_elf_check_mips16_stubs,
8785 (PTR) NULL);
8786
8787 return true;
8788}
8789
8790/* Check the mips16 stubs for a particular symbol, and see if we can
8791 discard them. */
8792
252b5132
RH
8793static boolean
8794mips_elf_check_mips16_stubs (h, data)
8795 struct mips_elf_link_hash_entry *h;
5f771d47 8796 PTR data ATTRIBUTE_UNUSED;
252b5132 8797{
e92d460e
AM
8798 if (h->root.root.type == bfd_link_hash_warning)
8799 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
8800
252b5132
RH
8801 if (h->fn_stub != NULL
8802 && ! h->need_fn_stub)
8803 {
8804 /* We don't need the fn_stub; the only references to this symbol
8805 are 16 bit calls. Clobber the size to 0 to prevent it from
8806 being included in the link. */
8807 h->fn_stub->_raw_size = 0;
8808 h->fn_stub->_cooked_size = 0;
be3ccd9c 8809 h->fn_stub->flags &= ~SEC_RELOC;
252b5132
RH
8810 h->fn_stub->reloc_count = 0;
8811 h->fn_stub->flags |= SEC_EXCLUDE;
8812 }
8813
8814 if (h->call_stub != NULL
8815 && h->root.other == STO_MIPS16)
8816 {
8817 /* We don't need the call_stub; this is a 16 bit function, so
8818 calls from other 16 bit functions are OK. Clobber the size
8819 to 0 to prevent it from being included in the link. */
8820 h->call_stub->_raw_size = 0;
8821 h->call_stub->_cooked_size = 0;
be3ccd9c 8822 h->call_stub->flags &= ~SEC_RELOC;
252b5132
RH
8823 h->call_stub->reloc_count = 0;
8824 h->call_stub->flags |= SEC_EXCLUDE;
8825 }
8826
8827 if (h->call_fp_stub != NULL
8828 && h->root.other == STO_MIPS16)
8829 {
8830 /* We don't need the call_stub; this is a 16 bit function, so
8831 calls from other 16 bit functions are OK. Clobber the size
8832 to 0 to prevent it from being included in the link. */
8833 h->call_fp_stub->_raw_size = 0;
8834 h->call_fp_stub->_cooked_size = 0;
be3ccd9c 8835 h->call_fp_stub->flags &= ~SEC_RELOC;
252b5132
RH
8836 h->call_fp_stub->reloc_count = 0;
8837 h->call_fp_stub->flags |= SEC_EXCLUDE;
8838 }
8839
8840 return true;
8841}
8842
8843/* Set the sizes of the dynamic sections. */
8844
103186c6
MM
8845boolean
8846_bfd_mips_elf_size_dynamic_sections (output_bfd, info)
252b5132
RH
8847 bfd *output_bfd;
8848 struct bfd_link_info *info;
8849{
8850 bfd *dynobj;
8851 asection *s;
8852 boolean reltext;
7a12753d 8853 struct mips_got_info *g = NULL;
252b5132
RH
8854
8855 dynobj = elf_hash_table (info)->dynobj;
8856 BFD_ASSERT (dynobj != NULL);
8857
8858 if (elf_hash_table (info)->dynamic_sections_created)
8859 {
8860 /* Set the contents of the .interp section to the interpreter. */
8861 if (! info->shared)
8862 {
8863 s = bfd_get_section_by_name (dynobj, ".interp");
8864 BFD_ASSERT (s != NULL);
be3ccd9c 8865 s->_raw_size
303f629d 8866 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1;
be3ccd9c 8867 s->contents
7403cb63 8868 = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd);
252b5132
RH
8869 }
8870 }
8871
252b5132
RH
8872 /* The check_relocs and adjust_dynamic_symbol entry points have
8873 determined the sizes of the various dynamic sections. Allocate
8874 memory for them. */
8875 reltext = false;
8876 for (s = dynobj->sections; s != NULL; s = s->next)
8877 {
8878 const char *name;
8879 boolean strip;
8880
8881 /* It's OK to base decisions on the section name, because none
8882 of the dynobj section names depend upon the input files. */
8883 name = bfd_get_section_name (dynobj, s);
8884
8885 if ((s->flags & SEC_LINKER_CREATED) == 0)
8886 continue;
8887
8888 strip = false;
8889
8890 if (strncmp (name, ".rel", 4) == 0)
8891 {
8892 if (s->_raw_size == 0)
8893 {
8894 /* We only strip the section if the output section name
8895 has the same name. Otherwise, there might be several
8896 input sections for this output section. FIXME: This
8897 code is probably not needed these days anyhow, since
8898 the linker now does not create empty output sections. */
8899 if (s->output_section != NULL
8900 && strcmp (name,
8901 bfd_get_section_name (s->output_section->owner,
8902 s->output_section)) == 0)
8903 strip = true;
8904 }
8905 else
8906 {
8907 const char *outname;
8908 asection *target;
8909
8910 /* If this relocation section applies to a read only
8911 section, then we probably need a DT_TEXTREL entry.
8912 If the relocation section is .rel.dyn, we always
8913 assert a DT_TEXTREL entry rather than testing whether
8914 there exists a relocation to a read only section or
8915 not. */
8916 outname = bfd_get_section_name (output_bfd,
8917 s->output_section);
8918 target = bfd_get_section_by_name (output_bfd, outname + 4);
8919 if ((target != NULL
8920 && (target->flags & SEC_READONLY) != 0
8921 && (target->flags & SEC_ALLOC) != 0)
be3ccd9c 8922 || strcmp (outname,
103186c6 8923 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0)
252b5132
RH
8924 reltext = true;
8925
8926 /* We use the reloc_count field as a counter if we need
8927 to copy relocs into the output file. */
be3ccd9c 8928 if (strcmp (name,
103186c6 8929 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0)
252b5132
RH
8930 s->reloc_count = 0;
8931 }
8932 }
8933 else if (strncmp (name, ".got", 4) == 0)
8934 {
8935 int i;
be3ccd9c
KH
8936 bfd_size_type loadable_size = 0;
8937 bfd_size_type local_gotno;
d1cf510e 8938 bfd *sub;
252b5132 8939
be3ccd9c 8940 BFD_ASSERT (elf_section_data (s) != NULL);
252b5132 8941 g = (struct mips_got_info *) elf_section_data (s)->tdata;
be3ccd9c
KH
8942 BFD_ASSERT (g != NULL);
8943
8944 /* Calculate the total loadable size of the output. That
8945 will give us the maximum number of GOT_PAGE entries
8946 required. */
8947 for (sub = info->input_bfds; sub; sub = sub->link_next)
8948 {
8949 asection *subsection;
8950
8951 for (subsection = sub->sections;
8952 subsection;
8953 subsection = subsection->next)
8954 {
8955 if ((subsection->flags & SEC_ALLOC) == 0)
8956 continue;
dc810e39
AM
8957 loadable_size += ((subsection->_raw_size + 0xf)
8958 &~ (bfd_size_type) 0xf);
be3ccd9c
KH
8959 }
8960 }
8961 loadable_size += MIPS_FUNCTION_STUB_SIZE;
8962
8963 /* Assume there are two loadable segments consisting of
8964 contiguous sections. Is 5 enough? */
8965 local_gotno = (loadable_size >> 16) + 5;
9458945f
MM
8966 if (IRIX_COMPAT (output_bfd) == ict_irix6)
8967 /* It's possible we will need GOT_PAGE entries as well as
8968 GOT16 entries. Often, these will be able to share GOT
8969 entries, but not always. */
8970 local_gotno *= 2;
8971
be3ccd9c
KH
8972 g->local_gotno += local_gotno;
8973 s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj);
7403cb63 8974
be3ccd9c
KH
8975 /* There has to be a global GOT entry for every symbol with
8976 a dynamic symbol table index of DT_MIPS_GOTSYM or
8977 higher. Therefore, it make sense to put those symbols
8978 that need GOT entries at the end of the symbol table. We
8979 do that here. */
b3be9b46 8980 if (!mips_elf_sort_hash_table (info, 1))
7403cb63
MM
8981 return false;
8982
8b237a89
MM
8983 if (g->global_gotsym != NULL)
8984 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
8985 else
8986 /* If there are no global symbols, or none requiring
8987 relocations, then GLOBAL_GOTSYM will be NULL. */
8988 i = 0;
b3be9b46 8989 g->global_gotno = i;
103186c6 8990 s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj);
252b5132 8991 }
303f629d 8992 else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0)
252b5132
RH
8993 {
8994 /* Irix rld assumes that the function stub isn't at the end
8995 of .text section. So put a dummy. XXX */
8996 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8997 }
8998 else if (! info->shared
8999 && ! mips_elf_hash_table (info)->use_rld_obj_head
9000 && strncmp (name, ".rld_map", 8) == 0)
9001 {
9002 /* We add a room for __rld_map. It will be filled in by the
9003 rtld to contain a pointer to the _r_debug structure. */
9004 s->_raw_size += 4;
9005 }
9006 else if (SGI_COMPAT (output_bfd)
9007 && strncmp (name, ".compact_rel", 12) == 0)
9008 s->_raw_size += mips_elf_hash_table (info)->compact_rel_size;
c6142e5d
MM
9009 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))
9010 == 0)
be3ccd9c 9011 s->_raw_size = (sizeof (Elf32_External_Msym)
c6142e5d
MM
9012 * (elf_hash_table (info)->dynsymcount
9013 + bfd_count_sections (output_bfd)));
252b5132
RH
9014 else if (strncmp (name, ".init", 5) != 0)
9015 {
9016 /* It's not one of our sections, so don't allocate space. */
9017 continue;
9018 }
9019
9020 if (strip)
9021 {
7f8d5fc9 9022 _bfd_strip_section_from_output (info, s);
252b5132
RH
9023 continue;
9024 }
9025
9026 /* Allocate memory for the section contents. */
303f629d 9027 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
252b5132
RH
9028 if (s->contents == NULL && s->_raw_size != 0)
9029 {
9030 bfd_set_error (bfd_error_no_memory);
9031 return false;
9032 }
252b5132
RH
9033 }
9034
9035 if (elf_hash_table (info)->dynamic_sections_created)
9036 {
9037 /* Add some entries to the .dynamic section. We fill in the
9038 values later, in elf_mips_finish_dynamic_sections, but we
9039 must add the entries now so that we get the correct size for
9040 the .dynamic section. The DT_DEBUG entry is filled in by the
9041 dynamic linker and used by the debugger. */
9042 if (! info->shared)
9043 {
be3ccd9c
KH
9044 /* SGI object has the equivalence of DT_DEBUG in the
9045 DT_MIPS_RLD_MAP entry. */
9046 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
9047 return false;
9048 if (!SGI_COMPAT (output_bfd))
9049 {
9050 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9051 return false;
9052 }
9053 }
f7cb7d68 9054 else
be3ccd9c
KH
9055 {
9056 /* Shared libraries on traditional mips have DT_DEBUG. */
9057 if (!SGI_COMPAT (output_bfd))
9058 {
9059 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9060 return false;
9061 }
9062 }
43917054 9063
be3ccd9c 9064 if (reltext && SGI_COMPAT (output_bfd))
43917054
L
9065 info->flags |= DF_TEXTREL;
9066
9067 if ((info->flags & DF_TEXTREL) != 0)
252b5132 9068 {
103186c6 9069 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
252b5132
RH
9070 return false;
9071 }
9072
103186c6 9073 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
252b5132
RH
9074 return false;
9075
103186c6
MM
9076 if (bfd_get_section_by_name (dynobj,
9077 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)))
252b5132 9078 {
103186c6 9079 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
252b5132
RH
9080 return false;
9081
103186c6 9082 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
252b5132
RH
9083 return false;
9084
103186c6 9085 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
252b5132
RH
9086 return false;
9087 }
9088
f7cb7d68 9089 if (SGI_COMPAT (output_bfd))
be3ccd9c
KH
9090 {
9091 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0))
f7cb7d68 9092 return false;
be3ccd9c 9093 }
252b5132 9094
f7cb7d68 9095 if (SGI_COMPAT (output_bfd))
be3ccd9c
KH
9096 {
9097 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0))
f7cb7d68 9098 return false;
be3ccd9c 9099 }
252b5132
RH
9100
9101 if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
9102 {
103186c6 9103 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0))
252b5132
RH
9104 return false;
9105
9106 s = bfd_get_section_by_name (dynobj, ".liblist");
9107 BFD_ASSERT (s != NULL);
9108
103186c6 9109 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0))
252b5132
RH
9110 return false;
9111 }
9112
103186c6 9113 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0))
252b5132
RH
9114 return false;
9115
103186c6 9116 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0))
252b5132
RH
9117 return false;
9118
9119#if 0
9120 /* Time stamps in executable files are a bad idea. */
103186c6 9121 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0))
252b5132
RH
9122 return false;
9123#endif
9124
9125#if 0 /* FIXME */
103186c6 9126 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0))
252b5132
RH
9127 return false;
9128#endif
9129
9130#if 0 /* FIXME */
103186c6 9131 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0))
252b5132
RH
9132 return false;
9133#endif
9134
103186c6 9135 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0))
252b5132
RH
9136 return false;
9137
103186c6 9138 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0))
252b5132
RH
9139 return false;
9140
103186c6 9141 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0))
252b5132
RH
9142 return false;
9143
103186c6 9144 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0))
252b5132
RH
9145 return false;
9146
5499724a 9147 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0))
252b5132
RH
9148 return false;
9149
7403cb63 9150 if (IRIX_COMPAT (dynobj) == ict_irix5
103186c6 9151 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0))
252b5132
RH
9152 return false;
9153
7403cb63 9154 if (IRIX_COMPAT (dynobj) == ict_irix6
be3ccd9c 9155 && (bfd_get_section_by_name
7403cb63 9156 (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj)))
103186c6 9157 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
7403cb63 9158 return false;
c6142e5d 9159
be3ccd9c 9160 if (bfd_get_section_by_name (dynobj,
c6142e5d 9161 MIPS_ELF_MSYM_SECTION_NAME (dynobj))
103186c6 9162 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0))
c6142e5d 9163 return false;
252b5132
RH
9164 }
9165
252b5132
RH
9166 return true;
9167}
9168
7403cb63
MM
9169/* If NAME is one of the special IRIX6 symbols defined by the linker,
9170 adjust it appropriately now. */
9171
9172static void
9173mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym)
5f771d47 9174 bfd *abfd ATTRIBUTE_UNUSED;
7403cb63
MM
9175 const char *name;
9176 Elf_Internal_Sym *sym;
9177{
9178 /* The linker script takes care of providing names and values for
9179 these, but we must place them into the right sections. */
9180 static const char* const text_section_symbols[] = {
9181 "_ftext",
9182 "_etext",
9183 "__dso_displacement",
9184 "__elf_header",
9185 "__program_header_table",
9186 NULL
9187 };
9188
9189 static const char* const data_section_symbols[] = {
9190 "_fdata",
9191 "_edata",
9192 "_end",
9193 "_fbss",
9194 NULL
9195 };
9196
9197 const char* const *p;
9198 int i;
9199
9200 for (i = 0; i < 2; ++i)
be3ccd9c 9201 for (p = (i == 0) ? text_section_symbols : data_section_symbols;
7403cb63
MM
9202 *p;
9203 ++p)
9204 if (strcmp (*p, name) == 0)
9205 {
9206 /* All of these symbols are given type STT_SECTION by the
9207 IRIX6 linker. */
9208 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
be3ccd9c 9209
7403cb63
MM
9210 /* The IRIX linker puts these symbols in special sections. */
9211 if (i == 0)
9212 sym->st_shndx = SHN_MIPS_TEXT;
9213 else
9214 sym->st_shndx = SHN_MIPS_DATA;
be3ccd9c 9215
7403cb63
MM
9216 break;
9217 }
9218}
9219
252b5132
RH
9220/* Finish up dynamic symbol handling. We set the contents of various
9221 dynamic sections here. */
9222
103186c6
MM
9223boolean
9224_bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
252b5132
RH
9225 bfd *output_bfd;
9226 struct bfd_link_info *info;
9227 struct elf_link_hash_entry *h;
9228 Elf_Internal_Sym *sym;
9229{
9230 bfd *dynobj;
9231 bfd_vma gval;
9232 asection *sgot;
c6142e5d 9233 asection *smsym;
252b5132
RH
9234 struct mips_got_info *g;
9235 const char *name;
c6142e5d 9236 struct mips_elf_link_hash_entry *mh;
252b5132
RH
9237
9238 dynobj = elf_hash_table (info)->dynobj;
9239 gval = sym->st_value;
c6142e5d 9240 mh = (struct mips_elf_link_hash_entry *) h;
252b5132
RH
9241
9242 if (h->plt.offset != (bfd_vma) -1)
9243 {
9244 asection *s;
9245 bfd_byte *p;
9246 bfd_byte stub[MIPS_FUNCTION_STUB_SIZE];
9247
9248 /* This symbol has a stub. Set it up. */
9249
9250 BFD_ASSERT (h->dynindx != -1);
9251
be3ccd9c 9252 s = bfd_get_section_by_name (dynobj,
303f629d 9253 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
9254 BFD_ASSERT (s != NULL);
9255
9256 /* Fill the stub. */
9257 p = stub;
dc810e39 9258 bfd_put_32 (output_bfd, (bfd_vma) STUB_LW (output_bfd), p);
252b5132 9259 p += 4;
dc810e39 9260 bfd_put_32 (output_bfd, (bfd_vma) STUB_MOVE (output_bfd), p);
252b5132
RH
9261 p += 4;
9262
9263 /* FIXME: Can h->dynindex be more than 64K? */
9264 if (h->dynindx & 0xffff0000)
9265 return false;
9266
dc810e39 9267 bfd_put_32 (output_bfd, (bfd_vma) STUB_JALR, p);
252b5132 9268 p += 4;
dc810e39 9269 bfd_put_32 (output_bfd, (bfd_vma) STUB_LI16 (output_bfd) + h->dynindx, p);
252b5132
RH
9270
9271 BFD_ASSERT (h->plt.offset <= s->_raw_size);
9272 memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE);
9273
9274 /* Mark the symbol as undefined. plt.offset != -1 occurs
9275 only for the referenced symbol. */
9276 sym->st_shndx = SHN_UNDEF;
9277
9278 /* The run-time linker uses the st_value field of the symbol
9279 to reset the global offset table entry for this external
9280 to its stub address when unlinking a shared object. */
9281 gval = s->output_section->vma + s->output_offset + h->plt.offset;
9282 sym->st_value = gval;
9283 }
9284
b305ef96
UC
9285 BFD_ASSERT (h->dynindx != -1
9286 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0);
252b5132 9287
103186c6 9288 sgot = mips_elf_got_section (dynobj);
252b5132
RH
9289 BFD_ASSERT (sgot != NULL);
9290 BFD_ASSERT (elf_section_data (sgot) != NULL);
9291 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9292 BFD_ASSERT (g != NULL);
9293
7403cb63
MM
9294 /* Run through the global symbol table, creating GOT entries for all
9295 the symbols that need them. */
8b237a89
MM
9296 if (g->global_gotsym != NULL
9297 && h->dynindx >= g->global_gotsym->dynindx)
252b5132 9298 {
7403cb63
MM
9299 bfd_vma offset;
9300 bfd_vma value;
252b5132 9301
7403cb63
MM
9302 if (sym->st_value)
9303 value = sym->st_value;
9304 else
be3ccd9c
KH
9305 {
9306 /* For an entity defined in a shared object, this will be
9307 NULL. (For functions in shared objects for
9308 which we have created stubs, ST_VALUE will be non-NULL.
9309 That's because such the functions are now no longer defined
9310 in a shared object.) */
9311
9312 if (info->shared && h->root.type == bfd_link_hash_undefined)
9313 value = 0;
9314 else
9315 value = h->root.u.def.value;
9316 }
7403cb63 9317 offset = mips_elf_global_got_index (dynobj, h);
103186c6 9318 MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset);
252b5132
RH
9319 }
9320
c6142e5d 9321 /* Create a .msym entry, if appropriate. */
be3ccd9c 9322 smsym = bfd_get_section_by_name (dynobj,
c6142e5d
MM
9323 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
9324 if (smsym)
9325 {
9326 Elf32_Internal_Msym msym;
9327
9328 msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
9329 /* It is undocumented what the `1' indicates, but IRIX6 uses
9330 this value. */
9331 msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
be3ccd9c 9332 bfd_mips_elf_swap_msym_out
c6142e5d
MM
9333 (dynobj, &msym,
9334 ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
9335 }
9336
252b5132
RH
9337 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9338 name = h->root.root.string;
9339 if (strcmp (name, "_DYNAMIC") == 0
9340 || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
9341 sym->st_shndx = SHN_ABS;
f7cb7d68 9342 else if (strcmp (name, "_DYNAMIC_LINK") == 0
be3ccd9c 9343 || strcmp (name, "_DYNAMIC_LINKING") == 0)
252b5132
RH
9344 {
9345 sym->st_shndx = SHN_ABS;
9346 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9347 sym->st_value = 1;
9348 }
f7cb7d68
UC
9349 else if (strcmp (name, "_gp_disp") == 0)
9350 {
9351 sym->st_shndx = SHN_ABS;
9352 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9353 sym->st_value = elf_gp (output_bfd);
9354 }
252b5132
RH
9355 else if (SGI_COMPAT (output_bfd))
9356 {
f7cb7d68 9357 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
be3ccd9c 9358 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
252b5132
RH
9359 {
9360 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9361 sym->st_other = STO_PROTECTED;
9362 sym->st_value = 0;
9363 sym->st_shndx = SHN_MIPS_DATA;
9364 }
9365 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
9366 {
9367 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9368 sym->st_other = STO_PROTECTED;
9369 sym->st_value = mips_elf_hash_table (info)->procedure_count;
9370 sym->st_shndx = SHN_ABS;
9371 }
9372 else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS)
9373 {
9374 if (h->type == STT_FUNC)
9375 sym->st_shndx = SHN_MIPS_TEXT;
9376 else if (h->type == STT_OBJECT)
9377 sym->st_shndx = SHN_MIPS_DATA;
9378 }
9379 }
9380
7403cb63
MM
9381 /* Handle the IRIX6-specific symbols. */
9382 if (IRIX_COMPAT (output_bfd) == ict_irix6)
9383 mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym);
9384
f7cb7d68 9385 if (! info->shared)
252b5132
RH
9386 {
9387 if (! mips_elf_hash_table (info)->use_rld_obj_head
31a9bdd9
UC
9388 && (strcmp (name, "__rld_map") == 0
9389 || strcmp (name, "__RLD_MAP") == 0))
252b5132
RH
9390 {
9391 asection *s = bfd_get_section_by_name (dynobj, ".rld_map");
9392 BFD_ASSERT (s != NULL);
9393 sym->st_value = s->output_section->vma + s->output_offset;
9394 bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents);
9395 if (mips_elf_hash_table (info)->rld_value == 0)
9396 mips_elf_hash_table (info)->rld_value = sym->st_value;
9397 }
9398 else if (mips_elf_hash_table (info)->use_rld_obj_head
9399 && strcmp (name, "__rld_obj_head") == 0)
9400 {
303f629d 9401 /* IRIX6 does not use a .rld_map section. */
f7cb7d68
UC
9402 if (IRIX_COMPAT (output_bfd) == ict_irix5
9403 || IRIX_COMPAT (output_bfd) == ict_none)
be3ccd9c 9404 BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map")
303f629d 9405 != NULL);
252b5132
RH
9406 mips_elf_hash_table (info)->rld_value = sym->st_value;
9407 }
9408 }
9409
9410 /* If this is a mips16 symbol, force the value to be even. */
9411 if (sym->st_other == STO_MIPS16
9412 && (sym->st_value & 1) != 0)
9413 --sym->st_value;
9414
9415 return true;
9416}
9417
9418/* Finish up the dynamic sections. */
9419
103186c6
MM
9420boolean
9421_bfd_mips_elf_finish_dynamic_sections (output_bfd, info)
252b5132
RH
9422 bfd *output_bfd;
9423 struct bfd_link_info *info;
9424{
9425 bfd *dynobj;
9426 asection *sdyn;
9427 asection *sgot;
9428 struct mips_got_info *g;
9429
9430 dynobj = elf_hash_table (info)->dynobj;
9431
9432 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
9433
103186c6 9434 sgot = mips_elf_got_section (dynobj);
252b5132
RH
9435 if (sgot == NULL)
9436 g = NULL;
9437 else
9438 {
9439 BFD_ASSERT (elf_section_data (sgot) != NULL);
9440 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9441 BFD_ASSERT (g != NULL);
9442 }
9443
9444 if (elf_hash_table (info)->dynamic_sections_created)
9445 {
103186c6 9446 bfd_byte *b;
252b5132
RH
9447
9448 BFD_ASSERT (sdyn != NULL);
9449 BFD_ASSERT (g != NULL);
9450
103186c6
MM
9451 for (b = sdyn->contents;
9452 b < sdyn->contents + sdyn->_raw_size;
9453 b += MIPS_ELF_DYN_SIZE (dynobj))
252b5132
RH
9454 {
9455 Elf_Internal_Dyn dyn;
9456 const char *name;
9457 size_t elemsize;
9458 asection *s;
103186c6 9459 boolean swap_out_p;
252b5132 9460
103186c6
MM
9461 /* Read in the current dynamic entry. */
9462 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
be3ccd9c 9463
103186c6
MM
9464 /* Assume that we're going to modify it and write it out. */
9465 swap_out_p = true;
252b5132
RH
9466
9467 switch (dyn.d_tag)
9468 {
252b5132 9469 case DT_RELENT:
be3ccd9c 9470 s = (bfd_get_section_by_name
103186c6
MM
9471 (dynobj,
9472 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)));
252b5132 9473 BFD_ASSERT (s != NULL);
103186c6 9474 dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj);
252b5132
RH
9475 break;
9476
9477 case DT_STRSZ:
9478 /* Rewrite DT_STRSZ. */
9479 dyn.d_un.d_val =
350836e3 9480 _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
252b5132
RH
9481 break;
9482
9483 case DT_PLTGOT:
9484 name = ".got";
9485 goto get_vma;
9486 case DT_MIPS_CONFLICT:
9487 name = ".conflict";
9488 goto get_vma;
9489 case DT_MIPS_LIBLIST:
9490 name = ".liblist";
9491 get_vma:
9492 s = bfd_get_section_by_name (output_bfd, name);
9493 BFD_ASSERT (s != NULL);
9494 dyn.d_un.d_ptr = s->vma;
252b5132
RH
9495 break;
9496
9497 case DT_MIPS_RLD_VERSION:
9498 dyn.d_un.d_val = 1; /* XXX */
252b5132
RH
9499 break;
9500
9501 case DT_MIPS_FLAGS:
9502 dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
252b5132
RH
9503 break;
9504
9505 case DT_MIPS_CONFLICTNO:
9506 name = ".conflict";
9507 elemsize = sizeof (Elf32_Conflict);
9508 goto set_elemno;
9509
9510 case DT_MIPS_LIBLISTNO:
9511 name = ".liblist";
9512 elemsize = sizeof (Elf32_Lib);
9513 set_elemno:
9514 s = bfd_get_section_by_name (output_bfd, name);
9515 if (s != NULL)
9516 {
9517 if (s->_cooked_size != 0)
9518 dyn.d_un.d_val = s->_cooked_size / elemsize;
9519 else
9520 dyn.d_un.d_val = s->_raw_size / elemsize;
9521 }
9522 else
be3ccd9c 9523 dyn.d_un.d_val = 0;
252b5132
RH
9524 break;
9525
9526 case DT_MIPS_TIME_STAMP:
9527 time ((time_t *) &dyn.d_un.d_val);
252b5132
RH
9528 break;
9529
9530 case DT_MIPS_ICHECKSUM:
9531 /* XXX FIXME: */
103186c6 9532 swap_out_p = false;
252b5132
RH
9533 break;
9534
9535 case DT_MIPS_IVERSION:
9536 /* XXX FIXME: */
103186c6 9537 swap_out_p = false;
252b5132
RH
9538 break;
9539
9540 case DT_MIPS_BASE_ADDRESS:
9541 s = output_bfd->sections;
9542 BFD_ASSERT (s != NULL);
dc810e39 9543 dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff;
252b5132
RH
9544 break;
9545
9546 case DT_MIPS_LOCAL_GOTNO:
9547 dyn.d_un.d_val = g->local_gotno;
252b5132
RH
9548 break;
9549
5499724a
MM
9550 case DT_MIPS_UNREFEXTNO:
9551 /* The index into the dynamic symbol table which is the
9552 entry of the first external symbol that is not
9553 referenced within the same object. */
9554 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
9555 break;
9556
9557 case DT_MIPS_GOTSYM:
9558 if (g->global_gotsym)
9559 {
9560 dyn.d_un.d_val = g->global_gotsym->dynindx;
9561 break;
9562 }
9563 /* In case if we don't have global got symbols we default
9564 to setting DT_MIPS_GOTSYM to the same value as
9565 DT_MIPS_SYMTABNO, so we just fall through. */
9566
252b5132
RH
9567 case DT_MIPS_SYMTABNO:
9568 name = ".dynsym";
103186c6 9569 elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
252b5132
RH
9570 s = bfd_get_section_by_name (output_bfd, name);
9571 BFD_ASSERT (s != NULL);
9572
9573 if (s->_cooked_size != 0)
9574 dyn.d_un.d_val = s->_cooked_size / elemsize;
9575 else
9576 dyn.d_un.d_val = s->_raw_size / elemsize;
252b5132
RH
9577 break;
9578
252b5132
RH
9579 case DT_MIPS_HIPAGENO:
9580 dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
252b5132
RH
9581 break;
9582
9583 case DT_MIPS_RLD_MAP:
9584 dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value;
252b5132
RH
9585 break;
9586
7403cb63 9587 case DT_MIPS_OPTIONS:
be3ccd9c 9588 s = (bfd_get_section_by_name
7403cb63
MM
9589 (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
9590 dyn.d_un.d_ptr = s->vma;
7403cb63
MM
9591 break;
9592
c6142e5d 9593 case DT_MIPS_MSYM:
be3ccd9c 9594 s = (bfd_get_section_by_name
c6142e5d
MM
9595 (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)));
9596 dyn.d_un.d_ptr = s->vma;
103186c6
MM
9597 break;
9598
9599 default:
9600 swap_out_p = false;
c6142e5d 9601 break;
252b5132 9602 }
103186c6
MM
9603
9604 if (swap_out_p)
be3ccd9c 9605 (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
103186c6 9606 (dynobj, &dyn, b);
252b5132
RH
9607 }
9608 }
9609
9610 /* The first entry of the global offset table will be filled at
9611 runtime. The second entry will be used by some runtime loaders.
be3ccd9c 9612 This isn't the case of Irix rld. */
252b5132
RH
9613 if (sgot != NULL && sgot->_raw_size > 0)
9614 {
103186c6 9615 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents);
be3ccd9c 9616 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000,
103186c6 9617 sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd));
252b5132
RH
9618 }
9619
9620 if (sgot != NULL)
103186c6
MM
9621 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
9622 = MIPS_ELF_GOT_SIZE (output_bfd);
252b5132
RH
9623
9624 {
c6142e5d 9625 asection *smsym;
252b5132 9626 asection *s;
252b5132
RH
9627 Elf32_compact_rel cpt;
9628
30b30c21
RH
9629 /* ??? The section symbols for the output sections were set up in
9630 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9631 symbols. Should we do so? */
252b5132 9632
be3ccd9c 9633 smsym = bfd_get_section_by_name (dynobj,
c6142e5d 9634 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
30b30c21 9635 if (smsym != NULL)
252b5132 9636 {
103186c6 9637 Elf32_Internal_Msym msym;
c6142e5d 9638
103186c6
MM
9639 msym.ms_hash_value = 0;
9640 msym.ms_info = ELF32_MS_INFO (0, 1);
c6142e5d 9641
103186c6
MM
9642 for (s = output_bfd->sections; s != NULL; s = s->next)
9643 {
30b30c21 9644 long dynindx = elf_section_data (s)->dynindx;
252b5132 9645
be3ccd9c 9646 bfd_mips_elf_swap_msym_out
30b30c21
RH
9647 (output_bfd, &msym,
9648 (((Elf32_External_Msym *) smsym->contents)
9649 + dynindx));
9650 }
252b5132
RH
9651 }
9652
9653 if (SGI_COMPAT (output_bfd))
9654 {
9655 /* Write .compact_rel section out. */
9656 s = bfd_get_section_by_name (dynobj, ".compact_rel");
9657 if (s != NULL)
9658 {
9659 cpt.id1 = 1;
9660 cpt.num = s->reloc_count;
9661 cpt.id2 = 2;
9662 cpt.offset = (s->output_section->filepos
9663 + sizeof (Elf32_External_compact_rel));
9664 cpt.reserved0 = 0;
9665 cpt.reserved1 = 0;
9666 bfd_elf32_swap_compact_rel_out (output_bfd, &cpt,
9667 ((Elf32_External_compact_rel *)
9668 s->contents));
9669
9670 /* Clean up a dummy stub function entry in .text. */
be3ccd9c 9671 s = bfd_get_section_by_name (dynobj,
303f629d 9672 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
9673 if (s != NULL)
9674 {
9675 file_ptr dummy_offset;
9676
9677 BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE);
9678 dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE;
9679 memset (s->contents + dummy_offset, 0,
9680 MIPS_FUNCTION_STUB_SIZE);
9681 }
9682 }
9683 }
9684
adb76a3e
UC
9685 /* We need to sort the entries of the dynamic relocation section. */
9686
9687 if (!ABI_64_P (output_bfd))
9688 {
be3ccd9c
KH
9689 asection *reldyn;
9690
9691 reldyn = bfd_get_section_by_name (dynobj,
9692 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9693 if (reldyn != NULL && reldyn->reloc_count > 2)
9694 {
9695 reldyn_sorting_bfd = output_bfd;
9696 qsort ((Elf32_External_Rel *) reldyn->contents + 1,
9697 (size_t) reldyn->reloc_count - 1,
9698 sizeof (Elf32_External_Rel), sort_dynamic_relocs);
9699 }
adb76a3e
UC
9700 }
9701
252b5132 9702 /* Clean up a first relocation in .rel.dyn. */
be3ccd9c 9703 s = bfd_get_section_by_name (dynobj,
103186c6 9704 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
252b5132 9705 if (s != NULL && s->_raw_size > 0)
103186c6 9706 memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj));
252b5132
RH
9707 }
9708
9709 return true;
9710}
9711\f
bb0082d6
AM
9712/* Support for core dump NOTE sections */
9713static boolean
9714_bfd_elf32_mips_grok_prstatus (abfd, note)
9715 bfd *abfd;
9716 Elf_Internal_Note *note;
9717{
9718 int offset;
dc810e39 9719 unsigned int raw_size;
bb0082d6
AM
9720
9721 switch (note->descsz)
9722 {
9723 default:
9724 return false;
9725
9726 case 256: /* Linux/MIPS */
9727 /* pr_cursig */
9728 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
9729
9730 /* pr_pid */
9731 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9732
9733 /* pr_reg */
9734 offset = 72;
9735 raw_size = 180;
9736
9737 break;
9738 }
9739
9740 /* Make a ".reg/999" section. */
936e320b
AM
9741 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
9742 raw_size, note->descpos + offset);
bb0082d6
AM
9743}
9744
9e80ff3a
L
9745static boolean
9746_bfd_elf32_mips_grok_psinfo (abfd, note)
bb0082d6
AM
9747 bfd *abfd;
9748 Elf_Internal_Note *note;
9749{
9750 switch (note->descsz)
9751 {
9752 default:
9753 return false;
9754
9755 case 128: /* Linux/MIPS elf_prpsinfo */
9756 elf_tdata (abfd)->core_program
9757 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
9758 elf_tdata (abfd)->core_command
9759 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
9760 }
9761
9762 /* Note that for some reason, a spurious space is tacked
9763 onto the end of the args in some (at least one anyway)
9764 implementations, so strip it off if it exists. */
9765
9766 {
9767 char *command = elf_tdata (abfd)->core_command;
9768 int n = strlen (command);
9769
9770 if (0 < n && command[n - 1] == ' ')
9771 command[n - 1] = '\0';
9772 }
9773
9774 return true;
9775}
9776\f
73d074b4
DJ
9777#define PDR_SIZE 32
9778
9779static boolean
9780_bfd_elf32_mips_discard_info (abfd, cookie, info)
9781 bfd *abfd;
9782 struct elf_reloc_cookie *cookie;
9783 struct bfd_link_info *info;
9784{
9785 asection *o;
9786 struct elf_backend_data *bed = get_elf_backend_data (abfd);
9787 boolean ret = false;
9788 unsigned char *tdata;
9789 size_t i, skip;
9790
9791 o = bfd_get_section_by_name (abfd, ".pdr");
9792 if (! o)
9793 return false;
9794 if (o->_raw_size == 0)
9795 return false;
9796 if (o->_raw_size % PDR_SIZE != 0)
9797 return false;
9798 if (o->output_section != NULL
9799 && bfd_is_abs_section (o->output_section))
9800 return false;
9801
9802 tdata = bfd_zmalloc (o->_raw_size / PDR_SIZE);
9803 if (! tdata)
9804 return false;
9805
9806 cookie->rels = _bfd_elf32_link_read_relocs (abfd, o, (PTR) NULL,
9807 (Elf_Internal_Rela *) NULL,
9808 info->keep_memory);
9809 if (!cookie->rels)
9810 {
9811 free (tdata);
9812 return false;
9813 }
9814
9815 cookie->rel = cookie->rels;
9816 cookie->relend =
9817 cookie->rels + o->reloc_count * bed->s->int_rels_per_ext_rel;
175e9962 9818
73d074b4
DJ
9819 for (i = 0, skip = 0; i < o->_raw_size; i ++)
9820 {
9821 if (_bfd_elf32_reloc_symbol_deleted_p (i * PDR_SIZE, cookie))
9822 {
9823 tdata[i] = 1;
9824 skip ++;
9825 }
9826 }
9827
9828 if (skip != 0)
9829 {
9830 elf_section_data (o)->tdata = tdata;
9831 o->_cooked_size = o->_raw_size - skip * PDR_SIZE;
9832 ret = true;
9833 }
9834 else
9835 free (tdata);
9836
9837 if (! info->keep_memory)
9838 free (cookie->rels);
9839
9840 return ret;
9841}
9842
9843static boolean
9844_bfd_elf32_mips_ignore_discarded_relocs (sec)
9845 asection *sec;
9846{
9847 if (strcmp (sec->name, ".pdr") == 0)
9848 return true;
9849 return false;
9850}
9851
9852static boolean
9853_bfd_elf32_mips_write_section (output_bfd, sec, contents)
9854 bfd *output_bfd;
9855 asection *sec;
9856 bfd_byte *contents;
9857{
9858 bfd_byte *to, *from, *end;
9859 int i;
9860
9861 if (strcmp (sec->name, ".pdr") != 0)
9862 return false;
9863
9864 if (elf_section_data (sec)->tdata == NULL)
9865 return false;
9866
9867 to = contents;
9868 end = contents + sec->_raw_size;
9869 for (from = contents, i = 0;
9870 from < end;
9871 from += PDR_SIZE, i++)
9872 {
9873 if (((unsigned char *)elf_section_data (sec)->tdata)[i] == 1)
9874 continue;
9875 if (to != from)
9876 memcpy (to, from, PDR_SIZE);
9877 to += PDR_SIZE;
9878 }
9879 bfd_set_section_contents (output_bfd, sec->output_section, contents,
9880 (file_ptr) sec->output_offset,
9881 sec->_cooked_size);
9882 return true;
9883}
9884\f
030d18fb
CD
9885/* Given a data section and an in-memory embedded reloc section, store
9886 relocation information into the embedded reloc section which can be
9887 used at runtime to relocate the data section. This is called by the
9888 linker when the --embedded-relocs switch is used. This is called
9889 after the add_symbols entry point has been called for all the
9890 objects, and before the final_link entry point is called. */
9891
9892boolean
9893bfd_mips_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
9894 bfd *abfd;
9895 struct bfd_link_info *info;
9896 asection *datasec;
9897 asection *relsec;
9898 char **errmsg;
9899{
9900 Elf_Internal_Shdr *symtab_hdr;
9901 Elf_Internal_Shdr *shndx_hdr;
9902 Elf32_External_Sym *extsyms;
9903 Elf32_External_Sym *free_extsyms = NULL;
9904 Elf_External_Sym_Shndx *shndx_buf = NULL;
9905 Elf_Internal_Rela *internal_relocs;
9906 Elf_Internal_Rela *free_relocs = NULL;
9907 Elf_Internal_Rela *irel, *irelend;
9908 bfd_byte *p;
9909 bfd_size_type amt;
9910
9911 BFD_ASSERT (! info->relocateable);
9912
9913 *errmsg = NULL;
9914
9915 if (datasec->reloc_count == 0)
9916 return true;
9917
9918 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
9919 /* Read this BFD's symbols if we haven't done so already, or get the cached
9920 copy if it exists. */
9921 if (symtab_hdr->contents != NULL)
9922 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
9923 else
9924 {
9925 /* Go get them off disk. */
9926 if (info->keep_memory)
9927 extsyms = ((Elf32_External_Sym *)
9928 bfd_alloc (abfd, symtab_hdr->sh_size));
9929 else
9930 extsyms = ((Elf32_External_Sym *)
9931 bfd_malloc (symtab_hdr->sh_size));
9932 if (extsyms == NULL)
9933 goto error_return;
9934 if (! info->keep_memory)
9935 free_extsyms = extsyms;
9936 if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
9937 || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd)
9938 != symtab_hdr->sh_size))
9939 goto error_return;
9940 if (info->keep_memory)
9941 symtab_hdr->contents = (unsigned char *) extsyms;
9942 }
9943
9944 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
9945 if (shndx_hdr->sh_size != 0)
9946 {
9947 amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
9948 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
9949 if (shndx_buf == NULL)
9950 goto error_return;
9951 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
9952 || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
9953 goto error_return;
9954 }
9955
9956 /* Get a copy of the native relocations. */
9957 internal_relocs = (_bfd_elf32_link_read_relocs
9958 (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
9959 info->keep_memory));
9960 if (internal_relocs == NULL)
9961 goto error_return;
9962 if (! info->keep_memory)
9963 free_relocs = internal_relocs;
9964
9965 relsec->contents = (bfd_byte *) bfd_alloc (abfd, datasec->reloc_count * 12);
9966 if (relsec->contents == NULL)
9967 goto error_return;
9968
9969 p = relsec->contents;
9970
9971 irelend = internal_relocs + datasec->reloc_count;
9972
9973 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
9974 {
9975 asection *targetsec;
9976
9977 /* We are going to write a four byte longword into the runtime
9978 reloc section. The longword will be the address in the data
9979 section which must be relocated. It is followed by the name
9980 of the target section NUL-padded or truncated to 8
9981 characters. */
9982
9983 /* We can only relocate absolute longword relocs at run time. */
9984 if ((ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_32) &&
9985 (ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_64))
9986 {
9987 *errmsg = _("unsupported reloc type");
9988 bfd_set_error (bfd_error_bad_value);
9989 goto error_return;
9990 }
9991 /* Get the target section referred to by the reloc. */
9992 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
9993 {
9994 Elf32_External_Sym *esym;
9995 Elf_External_Sym_Shndx *shndx;
9996 Elf_Internal_Sym isym;
9997
9998 /* A local symbol. */
9999 esym = extsyms + ELF32_R_SYM (irel->r_info);
10000 shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
10001 bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
10002
10003 targetsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
10004 }
10005 else
10006 {
10007 unsigned long indx;
10008 struct elf_link_hash_entry *h;
10009
10010 /* An external symbol. */
10011 indx = ELF32_R_SYM (irel->r_info);
10012 h = elf_sym_hashes (abfd)[indx];
10013 targetsec = NULL;
10014 /*
10015 * For some reason, in certain programs, the symbol will
10016 * not be in the hash table. It seems to happen when you
10017 * declare a static table of pointers to const external structures.
10018 * In this case, the relocs are relative to data, not
10019 * text, so just treating it like an undefined link
10020 * should be sufficient.
10021 */
10022 BFD_ASSERT(h != NULL);
10023 if (h->root.type == bfd_link_hash_defined
10024 || h->root.type == bfd_link_hash_defweak)
10025 targetsec = h->root.u.def.section;
10026 }
10027
10028
10029 /*
10030 * Set the low bit of the relocation offset if it's a MIPS64 reloc.
10031 * Relocations will always be on (at least) 32-bit boundaries.
10032 */
10033
10034 bfd_put_32 (abfd, ((irel->r_offset + datasec->output_offset) +
10035 ((ELF32_R_TYPE (irel->r_info) == (int) R_MIPS_64) ? 1 : 0)),
10036 p);
10037 memset (p + 4, 0, 8);
10038 if (targetsec != NULL)
10039 strncpy (p + 4, targetsec->output_section->name, 8);
10040 }
10041
10042 if (shndx_buf != NULL)
10043 free (shndx_buf);
10044 if (free_extsyms != NULL)
10045 free (free_extsyms);
10046 if (free_relocs != NULL)
10047 free (free_relocs);
10048 return true;
10049
10050 error_return:
10051 if (shndx_buf != NULL)
10052 free (shndx_buf);
10053 if (free_extsyms != NULL)
10054 free (free_extsyms);
10055 if (free_relocs != NULL)
10056 free (free_relocs);
10057 return false;
10058}
10059\f
252b5132
RH
10060/* This is almost identical to bfd_generic_get_... except that some
10061 MIPS relocations need to be handled specially. Sigh. */
10062
10063static bfd_byte *
10064elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data,
10065 relocateable, symbols)
10066 bfd *abfd;
10067 struct bfd_link_info *link_info;
10068 struct bfd_link_order *link_order;
10069 bfd_byte *data;
10070 boolean relocateable;
10071 asymbol **symbols;
10072{
10073 /* Get enough memory to hold the stuff */
10074 bfd *input_bfd = link_order->u.indirect.section->owner;
10075 asection *input_section = link_order->u.indirect.section;
10076
10077 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
10078 arelent **reloc_vector = NULL;
10079 long reloc_count;
10080
10081 if (reloc_size < 0)
10082 goto error_return;
10083
dc810e39 10084 reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
252b5132
RH
10085 if (reloc_vector == NULL && reloc_size != 0)
10086 goto error_return;
10087
10088 /* read in the section */
10089 if (!bfd_get_section_contents (input_bfd,
10090 input_section,
10091 (PTR) data,
dc810e39 10092 (file_ptr) 0,
252b5132
RH
10093 input_section->_raw_size))
10094 goto error_return;
10095
10096 /* We're not relaxing the section, so just copy the size info */
10097 input_section->_cooked_size = input_section->_raw_size;
10098 input_section->reloc_done = true;
10099
10100 reloc_count = bfd_canonicalize_reloc (input_bfd,
10101 input_section,
10102 reloc_vector,
10103 symbols);
10104 if (reloc_count < 0)
10105 goto error_return;
10106
10107 if (reloc_count > 0)
10108 {
10109 arelent **parent;
10110 /* for mips */
10111 int gp_found;
10112 bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */
10113
10114 {
10115 struct bfd_hash_entry *h;
10116 struct bfd_link_hash_entry *lh;
10117 /* Skip all this stuff if we aren't mixing formats. */
10118 if (abfd && input_bfd
10119 && abfd->xvec == input_bfd->xvec)
10120 lh = 0;
10121 else
10122 {
10123 h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false);
10124 lh = (struct bfd_link_hash_entry *) h;
10125 }
10126 lookup:
10127 if (lh)
10128 {
10129 switch (lh->type)
10130 {
10131 case bfd_link_hash_undefined:
10132 case bfd_link_hash_undefweak:
10133 case bfd_link_hash_common:
10134 gp_found = 0;
10135 break;
10136 case bfd_link_hash_defined:
10137 case bfd_link_hash_defweak:
10138 gp_found = 1;
10139 gp = lh->u.def.value;
10140 break;
10141 case bfd_link_hash_indirect:
10142 case bfd_link_hash_warning:
10143 lh = lh->u.i.link;
10144 /* @@FIXME ignoring warning for now */
10145 goto lookup;
10146 case bfd_link_hash_new:
10147 default:
10148 abort ();
10149 }
10150 }
10151 else
10152 gp_found = 0;
10153 }
10154 /* end mips */
10155 for (parent = reloc_vector; *parent != (arelent *) NULL;
10156 parent++)
10157 {
10158 char *error_message = (char *) NULL;
10159 bfd_reloc_status_type r;
10160
10161 /* Specific to MIPS: Deal with relocation types that require
10162 knowing the gp of the output bfd. */
10163 asymbol *sym = *(*parent)->sym_ptr_ptr;
10164 if (bfd_is_abs_section (sym->section) && abfd)
10165 {
10166 /* The special_function wouldn't get called anyways. */
10167 }
10168 else if (!gp_found)
10169 {
10170 /* The gp isn't there; let the special function code
10171 fall over on its own. */
10172 }
10173 else if ((*parent)->howto->special_function
10174 == _bfd_mips_elf_gprel16_reloc)
10175 {
10176 /* bypass special_function call */
10177 r = gprel16_with_gp (input_bfd, sym, *parent, input_section,
10178 relocateable, (PTR) data, gp);
10179 goto skip_bfd_perform_relocation;
10180 }
10181 /* end mips specific stuff */
10182
10183 r = bfd_perform_relocation (input_bfd,
10184 *parent,
10185 (PTR) data,
10186 input_section,
10187 relocateable ? abfd : (bfd *) NULL,
10188 &error_message);
10189 skip_bfd_perform_relocation:
10190
10191 if (relocateable)
10192 {
10193 asection *os = input_section->output_section;
10194
10195 /* A partial link, so keep the relocs */
10196 os->orelocation[os->reloc_count] = *parent;
10197 os->reloc_count++;
10198 }
10199
10200 if (r != bfd_reloc_ok)
10201 {
10202 switch (r)
10203 {
10204 case bfd_reloc_undefined:
10205 if (!((*link_info->callbacks->undefined_symbol)
10206 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
5cc7c785
L
10207 input_bfd, input_section, (*parent)->address,
10208 true)))
252b5132
RH
10209 goto error_return;
10210 break;
10211 case bfd_reloc_dangerous:
10212 BFD_ASSERT (error_message != (char *) NULL);
10213 if (!((*link_info->callbacks->reloc_dangerous)
10214 (link_info, error_message, input_bfd, input_section,
10215 (*parent)->address)))
10216 goto error_return;
10217 break;
10218 case bfd_reloc_overflow:
10219 if (!((*link_info->callbacks->reloc_overflow)
10220 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
10221 (*parent)->howto->name, (*parent)->addend,
10222 input_bfd, input_section, (*parent)->address)))
10223 goto error_return;
10224 break;
10225 case bfd_reloc_outofrange:
10226 default:
10227 abort ();
10228 break;
10229 }
10230
10231 }
10232 }
10233 }
10234 if (reloc_vector != NULL)
10235 free (reloc_vector);
10236 return data;
10237
10238error_return:
10239 if (reloc_vector != NULL)
10240 free (reloc_vector);
10241 return NULL;
10242}
be3ccd9c 10243
252b5132
RH
10244#define bfd_elf32_bfd_get_relocated_section_contents \
10245 elf32_mips_get_relocated_section_contents
10246\f
10247/* ECOFF swapping routines. These are used when dealing with the
10248 .mdebug section, which is in the ECOFF debugging format. */
be3ccd9c 10249static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
252b5132
RH
10250 /* Symbol table magic number. */
10251 magicSym,
10252 /* Alignment of debugging information. E.g., 4. */
10253 4,
10254 /* Sizes of external symbolic information. */
10255 sizeof (struct hdr_ext),
10256 sizeof (struct dnr_ext),
10257 sizeof (struct pdr_ext),
10258 sizeof (struct sym_ext),
10259 sizeof (struct opt_ext),
10260 sizeof (struct fdr_ext),
10261 sizeof (struct rfd_ext),
10262 sizeof (struct ext_ext),
10263 /* Functions to swap in external symbolic data. */
10264 ecoff_swap_hdr_in,
10265 ecoff_swap_dnr_in,
10266 ecoff_swap_pdr_in,
10267 ecoff_swap_sym_in,
10268 ecoff_swap_opt_in,
10269 ecoff_swap_fdr_in,
10270 ecoff_swap_rfd_in,
10271 ecoff_swap_ext_in,
10272 _bfd_ecoff_swap_tir_in,
10273 _bfd_ecoff_swap_rndx_in,
10274 /* Functions to swap out external symbolic data. */
10275 ecoff_swap_hdr_out,
10276 ecoff_swap_dnr_out,
10277 ecoff_swap_pdr_out,
10278 ecoff_swap_sym_out,
10279 ecoff_swap_opt_out,
10280 ecoff_swap_fdr_out,
10281 ecoff_swap_rfd_out,
10282 ecoff_swap_ext_out,
10283 _bfd_ecoff_swap_tir_out,
10284 _bfd_ecoff_swap_rndx_out,
10285 /* Function to read in symbolic data. */
10286 _bfd_mips_elf_read_ecoff_info
10287};
10288\f
252b5132
RH
10289#define ELF_ARCH bfd_arch_mips
10290#define ELF_MACHINE_CODE EM_MIPS
10291
10292/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
10293 a value of 0x1000, and we are compatible. */
10294#define ELF_MAXPAGESIZE 0x1000
10295
10296#define elf_backend_collect true
10297#define elf_backend_type_change_ok true
10298#define elf_backend_can_gc_sections true
3f830999 10299#define elf_info_to_howto mips_info_to_howto_rela
252b5132
RH
10300#define elf_info_to_howto_rel mips_info_to_howto_rel
10301#define elf_backend_sym_is_global mips_elf_sym_is_global
103186c6 10302#define elf_backend_object_p _bfd_mips_elf_object_p
d75bc93d
TS
10303#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
10304#define elf_backend_section_processing _bfd_mips_elf_section_processing
103186c6 10305#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
252b5132
RH
10306#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
10307#define elf_backend_section_from_bfd_section \
10308 _bfd_mips_elf_section_from_bfd_section
103186c6 10309#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
d75bc93d
TS
10310#define elf_backend_link_output_symbol_hook \
10311 _bfd_mips_elf_link_output_symbol_hook
103186c6
MM
10312#define elf_backend_create_dynamic_sections \
10313 _bfd_mips_elf_create_dynamic_sections
10314#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
10315#define elf_backend_adjust_dynamic_symbol \
10316 _bfd_mips_elf_adjust_dynamic_symbol
10317#define elf_backend_always_size_sections \
10318 _bfd_mips_elf_always_size_sections
10319#define elf_backend_size_dynamic_sections \
10320 _bfd_mips_elf_size_dynamic_sections
10321#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
103186c6
MM
10322#define elf_backend_finish_dynamic_symbol \
10323 _bfd_mips_elf_finish_dynamic_symbol
10324#define elf_backend_finish_dynamic_sections \
10325 _bfd_mips_elf_finish_dynamic_sections
d75bc93d
TS
10326#define elf_backend_final_write_processing \
10327 _bfd_mips_elf_final_write_processing
10328#define elf_backend_additional_program_headers \
10329 _bfd_mips_elf_additional_program_headers
10330#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
103186c6
MM
10331#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
10332#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
8a20f077
UC
10333#define elf_backend_copy_indirect_symbol \
10334 _bfd_mips_elf_copy_indirect_symbol
b305ef96 10335#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
bb0082d6
AM
10336#define elf_backend_grok_prstatus _bfd_elf32_mips_grok_prstatus
10337#define elf_backend_grok_psinfo _bfd_elf32_mips_grok_psinfo
d75bc93d
TS
10338#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
10339
10340#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
10341#define elf_backend_plt_header_size 0
10342#define elf_backend_may_use_rel_p 1
10343#define elf_backend_may_use_rela_p 0
10344#define elf_backend_default_use_rela_p 0
10345#define elf_backend_sign_extend_vma true
b305ef96 10346
73d074b4
DJ
10347#define elf_backend_discard_info _bfd_elf32_mips_discard_info
10348#define elf_backend_ignore_discarded_relocs \
10349 _bfd_elf32_mips_ignore_discarded_relocs
10350#define elf_backend_write_section _bfd_elf32_mips_write_section
10351
252b5132
RH
10352#define bfd_elf32_bfd_is_local_label_name \
10353 mips_elf_is_local_label_name
10354#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
10355#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
10356#define bfd_elf32_bfd_link_hash_table_create \
103186c6
MM
10357 _bfd_mips_elf_link_hash_table_create
10358#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
252b5132
RH
10359#define bfd_elf32_bfd_merge_private_bfd_data \
10360 _bfd_mips_elf_merge_private_bfd_data
10361#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
10362#define bfd_elf32_bfd_print_private_bfd_data \
10363 _bfd_mips_elf_print_private_bfd_data
e364195d 10364
d75bc93d
TS
10365/* Support for SGI-ish mips targets. */
10366#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
10367#define TARGET_LITTLE_NAME "elf32-littlemips"
10368#define TARGET_BIG_SYM bfd_elf32_bigmips_vec
10369#define TARGET_BIG_NAME "elf32-bigmips"
10370
10371#include "elf32-target.h"
e364195d 10372
d75bc93d
TS
10373/* Support for traditional mips targets. */
10374#define INCLUDED_TARGET_FILE /* More a type of flag. */
e364195d
UC
10375
10376#undef TARGET_LITTLE_SYM
10377#undef TARGET_LITTLE_NAME
10378#undef TARGET_BIG_SYM
10379#undef TARGET_BIG_NAME
10380
10381#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
10382#define TARGET_LITTLE_NAME "elf32-tradlittlemips"
10383#define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
10384#define TARGET_BIG_NAME "elf32-tradbigmips"
10385
10386/* Include the target file again for this target */
10387#include "elf32-target.h"
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