* arm-tdep.c (arm_frame_chain_valid): Make static.
[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
NC
3282 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_5)
3283 fprintf (file, _ (" [mips5]"));
e7af610e
NC
3284 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32)
3285 fprintf (file, _ (" [mips32]"));
84ea6cf2
NC
3286 else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64)
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
3586 kinds of relocations, so we set up the second header here. */
3587 if ((sec->flags & SEC_RELOC) != 0)
3588 {
3589 struct bfd_elf_section_data *esd;
dc810e39 3590 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
23bc299b
MM
3591
3592 esd = elf_section_data (sec);
3593 BFD_ASSERT (esd->rel_hdr2 == NULL);
dc810e39 3594 esd->rel_hdr2 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt);
23bc299b
MM
3595 if (!esd->rel_hdr2)
3596 return false;
3597 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
3598 !elf_section_data (sec)->use_rela_p);
3599 }
3600
252b5132
RH
3601 return true;
3602}
3603
3604/* Given a BFD section, try to locate the corresponding ELF section
3605 index. This is used by both the 32-bit and the 64-bit ABI.
3606 Actually, it's not clear to me that the 64-bit ABI supports these,
3607 but for non-PIC objects we will certainly want support for at least
3608 the .scommon section. */
3609
3610boolean
af746e92 3611_bfd_mips_elf_section_from_bfd_section (abfd, sec, retval)
d9bc7a44 3612 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
3613 asection *sec;
3614 int *retval;
3615{
3616 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3617 {
3618 *retval = SHN_MIPS_SCOMMON;
3619 return true;
3620 }
3621 if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0)
3622 {
3623 *retval = SHN_MIPS_ACOMMON;
3624 return true;
3625 }
3626 return false;
3627}
3628
3629/* When are writing out the .options or .MIPS.options section,
3630 remember the bytes we are writing out, so that we can install the
3631 GP value in the section_processing routine. */
3632
3633boolean
3634_bfd_mips_elf_set_section_contents (abfd, section, location, offset, count)
3635 bfd *abfd;
3636 sec_ptr section;
3637 PTR location;
3638 file_ptr offset;
3639 bfd_size_type count;
3640{
303f629d 3641 if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
252b5132
RH
3642 {
3643 bfd_byte *c;
3644
3645 if (elf_section_data (section) == NULL)
3646 {
dc810e39
AM
3647 bfd_size_type amt = sizeof (struct bfd_elf_section_data);
3648 section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
252b5132
RH
3649 if (elf_section_data (section) == NULL)
3650 return false;
3651 }
3652 c = (bfd_byte *) elf_section_data (section)->tdata;
3653 if (c == NULL)
3654 {
3655 bfd_size_type size;
3656
3657 if (section->_cooked_size != 0)
3658 size = section->_cooked_size;
3659 else
3660 size = section->_raw_size;
3661 c = (bfd_byte *) bfd_zalloc (abfd, size);
3662 if (c == NULL)
3663 return false;
3664 elf_section_data (section)->tdata = (PTR) c;
3665 }
3666
dc810e39 3667 memcpy (c + offset, location, (size_t) count);
252b5132
RH
3668 }
3669
3670 return _bfd_elf_set_section_contents (abfd, section, location, offset,
3671 count);
3672}
3673
3674/* Work over a section just before writing it out. This routine is
3675 used by both the 32-bit and the 64-bit ABI. FIXME: We recognize
3676 sections that need the SHF_MIPS_GPREL flag by name; there has to be
3677 a better way. */
3678
3679boolean
3680_bfd_mips_elf_section_processing (abfd, hdr)
3681 bfd *abfd;
3682 Elf_Internal_Shdr *hdr;
252b5132 3683{
cc3bfcee
ILT
3684 if (hdr->sh_type == SHT_MIPS_REGINFO
3685 && hdr->sh_size > 0)
252b5132
RH
3686 {
3687 bfd_byte buf[4];
3688
3689 BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
3690 BFD_ASSERT (hdr->contents == NULL);
3691
3692 if (bfd_seek (abfd,
3693 hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
dc810e39 3694 SEEK_SET) != 0)
252b5132 3695 return false;
dc810e39
AM
3696 H_PUT_32 (abfd, elf_gp (abfd), buf);
3697 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
252b5132
RH
3698 return false;
3699 }
3700
3701 if (hdr->sh_type == SHT_MIPS_OPTIONS
3702 && hdr->bfd_section != NULL
3703 && elf_section_data (hdr->bfd_section) != NULL
3704 && elf_section_data (hdr->bfd_section)->tdata != NULL)
3705 {
3706 bfd_byte *contents, *l, *lend;
3707
3708 /* We stored the section contents in the elf_section_data tdata
3709 field in the set_section_contents routine. We save the
3710 section contents so that we don't have to read them again.
3711 At this point we know that elf_gp is set, so we can look
3712 through the section contents to see if there is an
3713 ODK_REGINFO structure. */
3714
3715 contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata;
3716 l = contents;
3717 lend = contents + hdr->sh_size;
3718 while (l + sizeof (Elf_External_Options) <= lend)
3719 {
3720 Elf_Internal_Options intopt;
3721
3722 bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
3723 &intopt);
103186c6
MM
3724 if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
3725 {
3726 bfd_byte buf[8];
3727
3728 if (bfd_seek (abfd,
3729 (hdr->sh_offset
3730 + (l - contents)
3731 + sizeof (Elf_External_Options)
3732 + (sizeof (Elf64_External_RegInfo) - 8)),
dc810e39 3733 SEEK_SET) != 0)
103186c6 3734 return false;
dc810e39
AM
3735 H_PUT_64 (abfd, elf_gp (abfd), buf);
3736 if (bfd_bwrite (buf, (bfd_size_type) 8, abfd) != 8)
103186c6
MM
3737 return false;
3738 }
3739 else if (intopt.kind == ODK_REGINFO)
252b5132
RH
3740 {
3741 bfd_byte buf[4];
3742
3743 if (bfd_seek (abfd,
3744 (hdr->sh_offset
3745 + (l - contents)
3746 + sizeof (Elf_External_Options)
3747 + (sizeof (Elf32_External_RegInfo) - 4)),
dc810e39 3748 SEEK_SET) != 0)
252b5132 3749 return false;
dc810e39
AM
3750 H_PUT_32 (abfd, elf_gp (abfd), buf);
3751 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
252b5132
RH
3752 return false;
3753 }
3754 l += intopt.size;
3755 }
3756 }
3757
103186c6
MM
3758 if (hdr->bfd_section != NULL)
3759 {
3760 const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
3761
3762 if (strcmp (name, ".sdata") == 0
3763 || strcmp (name, ".lit8") == 0
3764 || strcmp (name, ".lit4") == 0)
3765 {
3766 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3767 hdr->sh_type = SHT_PROGBITS;
3768 }
3769 else if (strcmp (name, ".sbss") == 0)
3770 {
3771 hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
3772 hdr->sh_type = SHT_NOBITS;
3773 }
3774 else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0)
3775 {
3776 hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
3777 hdr->sh_type = SHT_PROGBITS;
3778 }
3779 else if (strcmp (name, ".compact_rel") == 0)
3780 {
3781 hdr->sh_flags = 0;
3782 hdr->sh_type = SHT_PROGBITS;
3783 }
3784 else if (strcmp (name, ".rtproc") == 0)
3785 {
3786 if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
3787 {
3788 unsigned int adjust;
3789
3790 adjust = hdr->sh_size % hdr->sh_addralign;
3791 if (adjust != 0)
3792 hdr->sh_size += hdr->sh_addralign - adjust;
3793 }
3794 }
3795 }
3796
3797 return true;
252b5132
RH
3798}
3799\f
3800/* MIPS ELF uses two common sections. One is the usual one, and the
3801 other is for small objects. All the small objects are kept
3802 together, and then referenced via the gp pointer, which yields
3803 faster assembler code. This is what we use for the small common
3804 section. This approach is copied from ecoff.c. */
3805static asection mips_elf_scom_section;
3806static asymbol mips_elf_scom_symbol;
3807static asymbol *mips_elf_scom_symbol_ptr;
3808
3809/* MIPS ELF also uses an acommon section, which represents an
3810 allocated common symbol which may be overridden by a
3811 definition in a shared library. */
3812static asection mips_elf_acom_section;
3813static asymbol mips_elf_acom_symbol;
3814static asymbol *mips_elf_acom_symbol_ptr;
3815
252b5132
RH
3816/* Handle the special MIPS section numbers that a symbol may use.
3817 This is used for both the 32-bit and the 64-bit ABI. */
3818
3819void
3820_bfd_mips_elf_symbol_processing (abfd, asym)
3821 bfd *abfd;
3822 asymbol *asym;
3823{
3824 elf_symbol_type *elfsym;
3825
3826 elfsym = (elf_symbol_type *) asym;
3827 switch (elfsym->internal_elf_sym.st_shndx)
3828 {
3829 case SHN_MIPS_ACOMMON:
3830 /* This section is used in a dynamically linked executable file.
3831 It is an allocated common section. The dynamic linker can
3832 either resolve these symbols to something in a shared
3833 library, or it can just leave them here. For our purposes,
3834 we can consider these symbols to be in a new section. */
3835 if (mips_elf_acom_section.name == NULL)
3836 {
3837 /* Initialize the acommon section. */
3838 mips_elf_acom_section.name = ".acommon";
3839 mips_elf_acom_section.flags = SEC_ALLOC;
3840 mips_elf_acom_section.output_section = &mips_elf_acom_section;
3841 mips_elf_acom_section.symbol = &mips_elf_acom_symbol;
3842 mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr;
3843 mips_elf_acom_symbol.name = ".acommon";
3844 mips_elf_acom_symbol.flags = BSF_SECTION_SYM;
3845 mips_elf_acom_symbol.section = &mips_elf_acom_section;
3846 mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol;
3847 }
3848 asym->section = &mips_elf_acom_section;
3849 break;
3850
3851 case SHN_COMMON:
3852 /* Common symbols less than the GP size are automatically
7403cb63
MM
3853 treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
3854 if (asym->value > elf_gp_size (abfd)
3855 || IRIX_COMPAT (abfd) == ict_irix6)
252b5132
RH
3856 break;
3857 /* Fall through. */
3858 case SHN_MIPS_SCOMMON:
3859 if (mips_elf_scom_section.name == NULL)
3860 {
3861 /* Initialize the small common section. */
3862 mips_elf_scom_section.name = ".scommon";
3863 mips_elf_scom_section.flags = SEC_IS_COMMON;
3864 mips_elf_scom_section.output_section = &mips_elf_scom_section;
3865 mips_elf_scom_section.symbol = &mips_elf_scom_symbol;
3866 mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr;
3867 mips_elf_scom_symbol.name = ".scommon";
3868 mips_elf_scom_symbol.flags = BSF_SECTION_SYM;
3869 mips_elf_scom_symbol.section = &mips_elf_scom_section;
3870 mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol;
3871 }
3872 asym->section = &mips_elf_scom_section;
3873 asym->value = elfsym->internal_elf_sym.st_size;
3874 break;
3875
3876 case SHN_MIPS_SUNDEFINED:
3877 asym->section = bfd_und_section_ptr;
3878 break;
3879
3880#if 0 /* for SGI_COMPAT */
3881 case SHN_MIPS_TEXT:
3882 asym->section = mips_elf_text_section_ptr;
3883 break;
3884
3885 case SHN_MIPS_DATA:
3886 asym->section = mips_elf_data_section_ptr;
3887 break;
3888#endif
3889 }
3890}
3891\f
3892/* When creating an Irix 5 executable, we need REGINFO and RTPROC
3893 segments. */
3894
103186c6
MM
3895int
3896_bfd_mips_elf_additional_program_headers (abfd)
252b5132
RH
3897 bfd *abfd;
3898{
3899 asection *s;
303f629d 3900 int ret = 0;
252b5132 3901
303f629d 3902 /* See if we need a PT_MIPS_REGINFO segment. */
252b5132 3903 s = bfd_get_section_by_name (abfd, ".reginfo");
303f629d
MM
3904 if (s && (s->flags & SEC_LOAD))
3905 ++ret;
252b5132 3906
303f629d
MM
3907 /* See if we need a PT_MIPS_OPTIONS segment. */
3908 if (IRIX_COMPAT (abfd) == ict_irix6
be3ccd9c 3909 && bfd_get_section_by_name (abfd,
303f629d
MM
3910 MIPS_ELF_OPTIONS_SECTION_NAME (abfd)))
3911 ++ret;
3912
3913 /* See if we need a PT_MIPS_RTPROC segment. */
3914 if (IRIX_COMPAT (abfd) == ict_irix5
3915 && bfd_get_section_by_name (abfd, ".dynamic")
3916 && bfd_get_section_by_name (abfd, ".mdebug"))
3917 ++ret;
252b5132
RH
3918
3919 return ret;
3920}
3921
3922/* Modify the segment map for an Irix 5 executable. */
3923
103186c6
MM
3924boolean
3925_bfd_mips_elf_modify_segment_map (abfd)
252b5132
RH
3926 bfd *abfd;
3927{
3928 asection *s;
3929 struct elf_segment_map *m, **pm;
dc810e39 3930 bfd_size_type amt;
252b5132 3931
252b5132
RH
3932 /* If there is a .reginfo section, we need a PT_MIPS_REGINFO
3933 segment. */
3934 s = bfd_get_section_by_name (abfd, ".reginfo");
3935 if (s != NULL && (s->flags & SEC_LOAD) != 0)
3936 {
3937 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
3938 if (m->p_type == PT_MIPS_REGINFO)
3939 break;
3940 if (m == NULL)
3941 {
dc810e39
AM
3942 amt = sizeof *m;
3943 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
252b5132
RH
3944 if (m == NULL)
3945 return false;
3946
3947 m->p_type = PT_MIPS_REGINFO;
3948 m->count = 1;
3949 m->sections[0] = s;
3950
3951 /* We want to put it after the PHDR and INTERP segments. */
3952 pm = &elf_tdata (abfd)->segment_map;
3953 while (*pm != NULL
3954 && ((*pm)->p_type == PT_PHDR
3955 || (*pm)->p_type == PT_INTERP))
3956 pm = &(*pm)->next;
3957
3958 m->next = *pm;
3959 *pm = m;
3960 }
3961 }
3962
303f629d
MM
3963 /* For IRIX 6, we don't have .mdebug sections, nor does anything but
3964 .dynamic end up in PT_DYNAMIC. However, we do have to insert a
3965 PT_OPTIONS segement immediately following the program header
3966 table. */
3967 if (IRIX_COMPAT (abfd) == ict_irix6)
252b5132 3968 {
303f629d
MM
3969 for (s = abfd->sections; s; s = s->next)
3970 if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS)
252b5132 3971 break;
303f629d
MM
3972
3973 if (s)
252b5132 3974 {
303f629d
MM
3975 struct elf_segment_map *options_segment;
3976
435394bf
MM
3977 /* Usually, there's a program header table. But, sometimes
3978 there's not (like when running the `ld' testsuite). So,
3979 if there's no program header table, we just put the
3980 options segement at the end. */
be3ccd9c 3981 for (pm = &elf_tdata (abfd)->segment_map;
435394bf
MM
3982 *pm != NULL;
3983 pm = &(*pm)->next)
3984 if ((*pm)->p_type == PT_PHDR)
303f629d
MM
3985 break;
3986
dc810e39
AM
3987 amt = sizeof (struct elf_segment_map);
3988 options_segment = bfd_zalloc (abfd, amt);
435394bf 3989 options_segment->next = *pm;
303f629d
MM
3990 options_segment->p_type = PT_MIPS_OPTIONS;
3991 options_segment->p_flags = PF_R;
3992 options_segment->p_flags_valid = true;
3993 options_segment->count = 1;
3994 options_segment->sections[0] = s;
435394bf 3995 *pm = options_segment;
303f629d
MM
3996 }
3997 }
3998 else
3999 {
f7cb7d68 4000 if (IRIX_COMPAT (abfd) == ict_irix5)
303f629d 4001 {
f7cb7d68
UC
4002 /* If there are .dynamic and .mdebug sections, we make a room
4003 for the RTPROC header. FIXME: Rewrite without section names. */
4004 if (bfd_get_section_by_name (abfd, ".interp") == NULL
4005 && bfd_get_section_by_name (abfd, ".dynamic") != NULL
4006 && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
252b5132 4007 {
f7cb7d68
UC
4008 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
4009 if (m->p_type == PT_MIPS_RTPROC)
4010 break;
303f629d 4011 if (m == NULL)
f7cb7d68 4012 {
dc810e39
AM
4013 amt = sizeof *m;
4014 m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
f7cb7d68
UC
4015 if (m == NULL)
4016 return false;
252b5132 4017
f7cb7d68 4018 m->p_type = PT_MIPS_RTPROC;
252b5132 4019
f7cb7d68
UC
4020 s = bfd_get_section_by_name (abfd, ".rtproc");
4021 if (s == NULL)
4022 {
4023 m->count = 0;
4024 m->p_flags = 0;
4025 m->p_flags_valid = 1;
4026 }
4027 else
4028 {
4029 m->count = 1;
4030 m->sections[0] = s;
4031 }
303f629d 4032
f7cb7d68
UC
4033 /* We want to put it after the DYNAMIC segment. */
4034 pm = &elf_tdata (abfd)->segment_map;
4035 while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
4036 pm = &(*pm)->next;
4037 if (*pm != NULL)
4038 pm = &(*pm)->next;
303f629d 4039
f7cb7d68
UC
4040 m->next = *pm;
4041 *pm = m;
4042 }
303f629d 4043 }
252b5132 4044 }
303f629d
MM
4045 /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
4046 .dynstr, .dynsym, and .hash sections, and everything in
4047 between. */
f7cb7d68
UC
4048 for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL;
4049 pm = &(*pm)->next)
303f629d
MM
4050 if ((*pm)->p_type == PT_DYNAMIC)
4051 break;
4052 m = *pm;
1b58be7e 4053 if (m != NULL && IRIX_COMPAT (abfd) == ict_none)
f7cb7d68
UC
4054 {
4055 /* For a normal mips executable the permissions for the PT_DYNAMIC
4056 segment are read, write and execute. We do that here since
4057 the code in elf.c sets only the read permission. This matters
be3ccd9c 4058 sometimes for the dynamic linker. */
f7cb7d68
UC
4059 if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
4060 {
4061 m->p_flags = PF_R | PF_W | PF_X;
4062 m->p_flags_valid = 1;
4063 }
4064 }
303f629d 4065 if (m != NULL
f7cb7d68 4066 && m->count == 1 && strcmp (m->sections[0]->name, ".dynamic") == 0)
252b5132 4067 {
38b1a46c
NC
4068 static const char *sec_names[] =
4069 {
be3ccd9c
KH
4070 ".dynamic", ".dynstr", ".dynsym", ".hash"
4071 };
303f629d
MM
4072 bfd_vma low, high;
4073 unsigned int i, c;
4074 struct elf_segment_map *n;
4075
4076 low = 0xffffffff;
4077 high = 0;
4078 for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
252b5132 4079 {
303f629d
MM
4080 s = bfd_get_section_by_name (abfd, sec_names[i]);
4081 if (s != NULL && (s->flags & SEC_LOAD) != 0)
4082 {
4083 bfd_size_type sz;
4084
4085 if (low > s->vma)
4086 low = s->vma;
4087 sz = s->_cooked_size;
4088 if (sz == 0)
4089 sz = s->_raw_size;
4090 if (high < s->vma + sz)
4091 high = s->vma + sz;
4092 }
252b5132 4093 }
252b5132 4094
303f629d
MM
4095 c = 0;
4096 for (s = abfd->sections; s != NULL; s = s->next)
4097 if ((s->flags & SEC_LOAD) != 0
4098 && s->vma >= low
4099 && ((s->vma
f7cb7d68
UC
4100 + (s->_cooked_size !=
4101 0 ? s->_cooked_size : s->_raw_size)) <= high))
303f629d
MM
4102 ++c;
4103
dc810e39
AM
4104 amt = sizeof *n + (bfd_size_type) (c - 1) * sizeof (asection *);
4105 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
303f629d
MM
4106 if (n == NULL)
4107 return false;
4108 *n = *m;
4109 n->count = c;
252b5132 4110
303f629d
MM
4111 i = 0;
4112 for (s = abfd->sections; s != NULL; s = s->next)
252b5132 4113 {
303f629d
MM
4114 if ((s->flags & SEC_LOAD) != 0
4115 && s->vma >= low
4116 && ((s->vma
4117 + (s->_cooked_size != 0 ?
f7cb7d68 4118 s->_cooked_size : s->_raw_size)) <= high))
303f629d
MM
4119 {
4120 n->sections[i] = s;
4121 ++i;
4122 }
252b5132 4123 }
252b5132 4124
303f629d
MM
4125 *pm = n;
4126 }
252b5132
RH
4127 }
4128
4129 return true;
4130}
4131\f
4132/* The structure of the runtime procedure descriptor created by the
4133 loader for use by the static exception system. */
4134
4135typedef struct runtime_pdr {
4136 bfd_vma adr; /* memory address of start of procedure */
4137 long regmask; /* save register mask */
4138 long regoffset; /* save register offset */
4139 long fregmask; /* save floating point register mask */
4140 long fregoffset; /* save floating point register offset */
4141 long frameoffset; /* frame size */
4142 short framereg; /* frame pointer register */
4143 short pcreg; /* offset or reg of return pc */
4144 long irpss; /* index into the runtime string table */
4145 long reserved;
4146 struct exception_info *exception_info;/* pointer to exception array */
4147} RPDR, *pRPDR;
be3ccd9c 4148#define cbRPDR sizeof (RPDR)
252b5132
RH
4149#define rpdNil ((pRPDR) 0)
4150
4151/* Swap RPDR (runtime procedure table entry) for output. */
4152
4153static void ecoff_swap_rpdr_out
4154 PARAMS ((bfd *, const RPDR *, struct rpdr_ext *));
4155
4156static void
4157ecoff_swap_rpdr_out (abfd, in, ex)
4158 bfd *abfd;
4159 const RPDR *in;
4160 struct rpdr_ext *ex;
4161{
dc810e39
AM
4162 /* ECOFF_PUT_OFF was defined in ecoffswap.h. */
4163 ECOFF_PUT_OFF (abfd, in->adr, ex->p_adr);
4164 H_PUT_32 (abfd, in->regmask, ex->p_regmask);
4165 H_PUT_32 (abfd, in->regoffset, ex->p_regoffset);
4166 H_PUT_32 (abfd, in->fregmask, ex->p_fregmask);
4167 H_PUT_32 (abfd, in->fregoffset, ex->p_fregoffset);
4168 H_PUT_32 (abfd, in->frameoffset, ex->p_frameoffset);
4169
4170 H_PUT_16 (abfd, in->framereg, ex->p_framereg);
4171 H_PUT_16 (abfd, in->pcreg, ex->p_pcreg);
4172
4173 H_PUT_32 (abfd, in->irpss, ex->p_irpss);
252b5132 4174#if 0 /* FIXME */
dc810e39 4175 ECOFF_PUT_OFF (abfd, in->exception_info, ex->p_exception_info);
252b5132
RH
4176#endif
4177}
4178\f
4179/* Read ECOFF debugging information from a .mdebug section into a
4180 ecoff_debug_info structure. */
4181
4182boolean
4183_bfd_mips_elf_read_ecoff_info (abfd, section, debug)
4184 bfd *abfd;
4185 asection *section;
4186 struct ecoff_debug_info *debug;
4187{
4188 HDRR *symhdr;
4189 const struct ecoff_debug_swap *swap;
4190 char *ext_hdr = NULL;
4191
4192 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
be3ccd9c 4193 memset (debug, 0, sizeof (*debug));
252b5132 4194
dc810e39 4195 ext_hdr = (char *) bfd_malloc (swap->external_hdr_size);
252b5132
RH
4196 if (ext_hdr == NULL && swap->external_hdr_size != 0)
4197 goto error_return;
4198
4199 if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
4200 swap->external_hdr_size)
4201 == false)
4202 goto error_return;
4203
4204 symhdr = &debug->symbolic_header;
4205 (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
4206
4207 /* The symbolic header contains absolute file offsets and sizes to
4208 read. */
4209#define READ(ptr, offset, count, size, type) \
4210 if (symhdr->count == 0) \
4211 debug->ptr = NULL; \
4212 else \
4213 { \
dc810e39
AM
4214 bfd_size_type amt = (bfd_size_type) size * symhdr->count; \
4215 debug->ptr = (type) bfd_malloc (amt); \
252b5132
RH
4216 if (debug->ptr == NULL) \
4217 goto error_return; \
4218 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
dc810e39 4219 || bfd_bread (debug->ptr, amt, abfd) != amt) \
252b5132
RH
4220 goto error_return; \
4221 }
4222
4223 READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
4224 READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
4225 READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
4226 READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
4227 READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
4228 READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
4229 union aux_ext *);
4230 READ (ss, cbSsOffset, issMax, sizeof (char), char *);
4231 READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
4232 READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
4233 READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
4234 READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
4235#undef READ
4236
4237 debug->fdr = NULL;
4238 debug->adjust = NULL;
4239
4240 return true;
4241
4242 error_return:
4243 if (ext_hdr != NULL)
4244 free (ext_hdr);
4245 if (debug->line != NULL)
4246 free (debug->line);
4247 if (debug->external_dnr != NULL)
4248 free (debug->external_dnr);
4249 if (debug->external_pdr != NULL)
4250 free (debug->external_pdr);
4251 if (debug->external_sym != NULL)
4252 free (debug->external_sym);
4253 if (debug->external_opt != NULL)
4254 free (debug->external_opt);
4255 if (debug->external_aux != NULL)
4256 free (debug->external_aux);
4257 if (debug->ss != NULL)
4258 free (debug->ss);
4259 if (debug->ssext != NULL)
4260 free (debug->ssext);
4261 if (debug->external_fdr != NULL)
4262 free (debug->external_fdr);
4263 if (debug->external_rfd != NULL)
4264 free (debug->external_rfd);
4265 if (debug->external_ext != NULL)
4266 free (debug->external_ext);
4267 return false;
4268}
4269\f
4270/* MIPS ELF local labels start with '$', not 'L'. */
4271
252b5132
RH
4272static boolean
4273mips_elf_is_local_label_name (abfd, name)
4274 bfd *abfd;
4275 const char *name;
4276{
4277 if (name[0] == '$')
4278 return true;
4279
4280 /* On Irix 6, the labels go back to starting with '.', so we accept
4281 the generic ELF local label syntax as well. */
4282 return _bfd_elf_is_local_label_name (abfd, name);
4283}
4284
4285/* MIPS ELF uses a special find_nearest_line routine in order the
4286 handle the ECOFF debugging information. */
4287
38b1a46c
NC
4288struct mips_elf_find_line
4289{
252b5132
RH
4290 struct ecoff_debug_info d;
4291 struct ecoff_find_line i;
4292};
4293
4294boolean
4295_bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
4296 functionname_ptr, line_ptr)
4297 bfd *abfd;
4298 asection *section;
4299 asymbol **symbols;
4300 bfd_vma offset;
4301 const char **filename_ptr;
4302 const char **functionname_ptr;
4303 unsigned int *line_ptr;
4304{
4305 asection *msec;
4306
4307 if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
4308 filename_ptr, functionname_ptr,
4309 line_ptr))
4310 return true;
4311
4312 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
4313 filename_ptr, functionname_ptr,
be3ccd9c 4314 line_ptr,
dc810e39 4315 (unsigned) (ABI_64_P (abfd) ? 8 : 0),
857ec808 4316 &elf_tdata (abfd)->dwarf2_find_line_info))
252b5132
RH
4317 return true;
4318
4319 msec = bfd_get_section_by_name (abfd, ".mdebug");
4320 if (msec != NULL)
4321 {
4322 flagword origflags;
4323 struct mips_elf_find_line *fi;
4324 const struct ecoff_debug_swap * const swap =
4325 get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4326
4327 /* If we are called during a link, mips_elf_final_link may have
4328 cleared the SEC_HAS_CONTENTS field. We force it back on here
4329 if appropriate (which it normally will be). */
4330 origflags = msec->flags;
4331 if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
4332 msec->flags |= SEC_HAS_CONTENTS;
4333
4334 fi = elf_tdata (abfd)->find_line_info;
4335 if (fi == NULL)
4336 {
4337 bfd_size_type external_fdr_size;
4338 char *fraw_src;
4339 char *fraw_end;
4340 struct fdr *fdr_ptr;
dc810e39 4341 bfd_size_type amt = sizeof (struct mips_elf_find_line);
252b5132 4342
dc810e39 4343 fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt);
252b5132
RH
4344 if (fi == NULL)
4345 {
4346 msec->flags = origflags;
4347 return false;
4348 }
4349
4350 if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
4351 {
4352 msec->flags = origflags;
4353 return false;
4354 }
4355
4356 /* Swap in the FDR information. */
dc810e39
AM
4357 amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr);
4358 fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt);
252b5132
RH
4359 if (fi->d.fdr == NULL)
4360 {
4361 msec->flags = origflags;
4362 return false;
4363 }
4364 external_fdr_size = swap->external_fdr_size;
4365 fdr_ptr = fi->d.fdr;
4366 fraw_src = (char *) fi->d.external_fdr;
4367 fraw_end = (fraw_src
4368 + fi->d.symbolic_header.ifdMax * external_fdr_size);
4369 for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
4370 (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
4371
4372 elf_tdata (abfd)->find_line_info = fi;
4373
4374 /* Note that we don't bother to ever free this information.
4375 find_nearest_line is either called all the time, as in
4376 objdump -l, so the information should be saved, or it is
4377 rarely called, as in ld error messages, so the memory
4378 wasted is unimportant. Still, it would probably be a
4379 good idea for free_cached_info to throw it away. */
4380 }
4381
4382 if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
4383 &fi->i, filename_ptr, functionname_ptr,
4384 line_ptr))
4385 {
4386 msec->flags = origflags;
4387 return true;
4388 }
4389
4390 msec->flags = origflags;
4391 }
4392
4393 /* Fall back on the generic ELF find_nearest_line routine. */
4394
4395 return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
4396 filename_ptr, functionname_ptr,
4397 line_ptr);
4398}
4399\f
4400 /* The mips16 compiler uses a couple of special sections to handle
4401 floating point arguments.
4402
4403 Section names that look like .mips16.fn.FNNAME contain stubs that
4404 copy floating point arguments from the fp regs to the gp regs and
4405 then jump to FNNAME. If any 32 bit function calls FNNAME, the
4406 call should be redirected to the stub instead. If no 32 bit
4407 function calls FNNAME, the stub should be discarded. We need to
4408 consider any reference to the function, not just a call, because
4409 if the address of the function is taken we will need the stub,
4410 since the address might be passed to a 32 bit function.
4411
4412 Section names that look like .mips16.call.FNNAME contain stubs
4413 that copy floating point arguments from the gp regs to the fp
4414 regs and then jump to FNNAME. If FNNAME is a 32 bit function,
4415 then any 16 bit function that calls FNNAME should be redirected
4416 to the stub instead. If FNNAME is not a 32 bit function, the
4417 stub should be discarded.
4418
4419 .mips16.call.fp.FNNAME sections are similar, but contain stubs
4420 which call FNNAME and then copy the return value from the fp regs
4421 to the gp regs. These stubs store the return value in $18 while
4422 calling FNNAME; any function which might call one of these stubs
4423 must arrange to save $18 around the call. (This case is not
4424 needed for 32 bit functions that call 16 bit functions, because
4425 16 bit functions always return floating point values in both
4426 $f0/$f1 and $2/$3.)
4427
4428 Note that in all cases FNNAME might be defined statically.
4429 Therefore, FNNAME is not used literally. Instead, the relocation
4430 information will indicate which symbol the section is for.
4431
4432 We record any stubs that we find in the symbol table. */
4433
4434#define FN_STUB ".mips16.fn."
4435#define CALL_STUB ".mips16.call."
4436#define CALL_FP_STUB ".mips16.call.fp."
4437
252b5132
RH
4438/* MIPS ELF linker hash table. */
4439
38b1a46c
NC
4440struct mips_elf_link_hash_table
4441{
252b5132
RH
4442 struct elf_link_hash_table root;
4443#if 0
4444 /* We no longer use this. */
4445 /* String section indices for the dynamic section symbols. */
4446 bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES];
4447#endif
4448 /* The number of .rtproc entries. */
4449 bfd_size_type procedure_count;
4450 /* The size of the .compact_rel section (if SGI_COMPAT). */
4451 bfd_size_type compact_rel_size;
4452 /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic
be3ccd9c 4453 entry is set to the address of __rld_obj_head as in Irix 5. */
252b5132
RH
4454 boolean use_rld_obj_head;
4455 /* This is the value of the __rld_map or __rld_obj_head symbol. */
4456 bfd_vma rld_value;
be3ccd9c 4457 /* This is set if we see any mips16 stub sections. */
252b5132
RH
4458 boolean mips16_stubs_seen;
4459};
4460
4461/* Look up an entry in a MIPS ELF linker hash table. */
4462
4463#define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
4464 ((struct mips_elf_link_hash_entry *) \
4465 elf_link_hash_lookup (&(table)->root, (string), (create), \
4466 (copy), (follow)))
4467
4468/* Traverse a MIPS ELF linker hash table. */
4469
4470#define mips_elf_link_hash_traverse(table, func, info) \
4471 (elf_link_hash_traverse \
4472 (&(table)->root, \
4473 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
4474 (info)))
4475
4476/* Get the MIPS ELF linker hash table from a link_info structure. */
4477
4478#define mips_elf_hash_table(p) \
4479 ((struct mips_elf_link_hash_table *) ((p)->hash))
4480
4481static boolean mips_elf_output_extsym
4482 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
4483
4484/* Create an entry in a MIPS ELF linker hash table. */
4485
4486static struct bfd_hash_entry *
4487mips_elf_link_hash_newfunc (entry, table, string)
4488 struct bfd_hash_entry *entry;
4489 struct bfd_hash_table *table;
4490 const char *string;
4491{
4492 struct mips_elf_link_hash_entry *ret =
4493 (struct mips_elf_link_hash_entry *) entry;
4494
4495 /* Allocate the structure if it has not already been allocated by a
4496 subclass. */
4497 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4498 ret = ((struct mips_elf_link_hash_entry *)
4499 bfd_hash_allocate (table,
4500 sizeof (struct mips_elf_link_hash_entry)));
4501 if (ret == (struct mips_elf_link_hash_entry *) NULL)
4502 return (struct bfd_hash_entry *) ret;
4503
4504 /* Call the allocation method of the superclass. */
4505 ret = ((struct mips_elf_link_hash_entry *)
4506 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
4507 table, string));
4508 if (ret != (struct mips_elf_link_hash_entry *) NULL)
4509 {
4510 /* Set local fields. */
4511 memset (&ret->esym, 0, sizeof (EXTR));
4512 /* We use -2 as a marker to indicate that the information has
4513 not been set. -1 means there is no associated ifd. */
4514 ret->esym.ifd = -2;
a3c7651d 4515 ret->possibly_dynamic_relocs = 0;
43917054 4516 ret->readonly_reloc = false;
c6142e5d 4517 ret->min_dyn_reloc_index = 0;
9117d219 4518 ret->no_fn_stub = false;
252b5132
RH
4519 ret->fn_stub = NULL;
4520 ret->need_fn_stub = false;
4521 ret->call_stub = NULL;
4522 ret->call_fp_stub = NULL;
4523 }
4524
4525 return (struct bfd_hash_entry *) ret;
4526}
4527
9e80ff3a 4528static void
e5094212 4529_bfd_mips_elf_hide_symbol (info, entry, force_local)
b305ef96 4530 struct bfd_link_info *info;
9e80ff3a 4531 struct elf_link_hash_entry *entry;
e5094212 4532 boolean force_local;
b305ef96
UC
4533{
4534 bfd *dynobj;
4535 asection *got;
4536 struct mips_got_info *g;
9e80ff3a
L
4537 struct mips_elf_link_hash_entry *h;
4538 h = (struct mips_elf_link_hash_entry *) entry;
b305ef96
UC
4539 dynobj = elf_hash_table (info)->dynobj;
4540 got = bfd_get_section_by_name (dynobj, ".got");
4541 g = (struct mips_got_info *) elf_section_data (got)->tdata;
4542
e5094212 4543 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
b305ef96
UC
4544
4545 /* FIXME: Do we allocate too much GOT space here? */
4546 g->local_gotno++;
4547 got->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
4548}
4549
252b5132
RH
4550/* Create a MIPS ELF linker hash table. */
4551
103186c6
MM
4552struct bfd_link_hash_table *
4553_bfd_mips_elf_link_hash_table_create (abfd)
252b5132
RH
4554 bfd *abfd;
4555{
4556 struct mips_elf_link_hash_table *ret;
dc810e39 4557 bfd_size_type amt = sizeof (struct mips_elf_link_hash_table);
252b5132 4558
dc810e39 4559 ret = (struct mips_elf_link_hash_table *) bfd_alloc (abfd, amt);
252b5132
RH
4560 if (ret == (struct mips_elf_link_hash_table *) NULL)
4561 return NULL;
4562
4563 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
4564 mips_elf_link_hash_newfunc))
4565 {
4566 bfd_release (abfd, ret);
4567 return NULL;
4568 }
4569
4570#if 0
4571 /* We no longer use this. */
4572 for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++)
4573 ret->dynsym_sec_strindex[i] = (bfd_size_type) -1;
4574#endif
4575 ret->procedure_count = 0;
4576 ret->compact_rel_size = 0;
4577 ret->use_rld_obj_head = false;
4578 ret->rld_value = 0;
4579 ret->mips16_stubs_seen = false;
4580
4581 return &ret->root.root;
4582}
4583
4584/* Hook called by the linker routine which adds symbols from an object
4585 file. We must handle the special MIPS section numbers here. */
4586
103186c6
MM
4587boolean
4588_bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
252b5132
RH
4589 bfd *abfd;
4590 struct bfd_link_info *info;
4591 const Elf_Internal_Sym *sym;
4592 const char **namep;
5f771d47 4593 flagword *flagsp ATTRIBUTE_UNUSED;
252b5132
RH
4594 asection **secp;
4595 bfd_vma *valp;
4596{
4597 if (SGI_COMPAT (abfd)
4598 && (abfd->flags & DYNAMIC) != 0
4599 && strcmp (*namep, "_rld_new_interface") == 0)
4600 {
4601 /* Skip Irix 5 rld entry name. */
4602 *namep = NULL;
4603 return true;
4604 }
4605
4606 switch (sym->st_shndx)
4607 {
4608 case SHN_COMMON:
4609 /* Common symbols less than the GP size are automatically
4610 treated as SHN_MIPS_SCOMMON symbols. */
7403cb63
MM
4611 if (sym->st_size > elf_gp_size (abfd)
4612 || IRIX_COMPAT (abfd) == ict_irix6)
252b5132
RH
4613 break;
4614 /* Fall through. */
4615 case SHN_MIPS_SCOMMON:
4616 *secp = bfd_make_section_old_way (abfd, ".scommon");
4617 (*secp)->flags |= SEC_IS_COMMON;
4618 *valp = sym->st_size;
4619 break;
4620
4621 case SHN_MIPS_TEXT:
4622 /* This section is used in a shared object. */
b305ef96 4623 if (elf_tdata (abfd)->elf_text_section == NULL)
252b5132 4624 {
b305ef96
UC
4625 asymbol *elf_text_symbol;
4626 asection *elf_text_section;
dc810e39 4627 bfd_size_type amt = sizeof (asection);
b305ef96 4628
dc810e39 4629 elf_text_section = bfd_zalloc (abfd, amt);
b305ef96
UC
4630 if (elf_text_section == NULL)
4631 return false;
4632
dc810e39
AM
4633 amt = sizeof (asymbol);
4634 elf_text_symbol = bfd_zalloc (abfd, amt);
b305ef96
UC
4635 if (elf_text_symbol == NULL)
4636 return false;
4637
252b5132 4638 /* Initialize the section. */
b305ef96
UC
4639
4640 elf_tdata (abfd)->elf_text_section = elf_text_section;
4641 elf_tdata (abfd)->elf_text_symbol = elf_text_symbol;
4642
4643 elf_text_section->symbol = elf_text_symbol;
4644 elf_text_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_text_symbol;
4645
4646 elf_text_section->name = ".text";
4647 elf_text_section->flags = SEC_NO_FLAGS;
4648 elf_text_section->output_section = NULL;
4649 elf_text_section->owner = abfd;
4650 elf_text_symbol->name = ".text";
4651 elf_text_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4652 elf_text_symbol->section = elf_text_section;
252b5132
RH
4653 }
4654 /* This code used to do *secp = bfd_und_section_ptr if
4655 info->shared. I don't know why, and that doesn't make sense,
4656 so I took it out. */
b305ef96 4657 *secp = elf_tdata (abfd)->elf_text_section;
252b5132
RH
4658 break;
4659
4660 case SHN_MIPS_ACOMMON:
4661 /* Fall through. XXX Can we treat this as allocated data? */
4662 case SHN_MIPS_DATA:
4663 /* This section is used in a shared object. */
b305ef96 4664 if (elf_tdata (abfd)->elf_data_section == NULL)
252b5132 4665 {
b305ef96
UC
4666 asymbol *elf_data_symbol;
4667 asection *elf_data_section;
dc810e39 4668 bfd_size_type amt = sizeof (asection);
b305ef96 4669
dc810e39 4670 elf_data_section = bfd_zalloc (abfd, amt);
b305ef96
UC
4671 if (elf_data_section == NULL)
4672 return false;
4673
dc810e39
AM
4674 amt = sizeof (asymbol);
4675 elf_data_symbol = bfd_zalloc (abfd, amt);
b305ef96
UC
4676 if (elf_data_symbol == NULL)
4677 return false;
4678
252b5132 4679 /* Initialize the section. */
b305ef96
UC
4680
4681 elf_tdata (abfd)->elf_data_section = elf_data_section;
4682 elf_tdata (abfd)->elf_data_symbol = elf_data_symbol;
4683
4684 elf_data_section->symbol = elf_data_symbol;
4685 elf_data_section->symbol_ptr_ptr = &elf_tdata (abfd)->elf_data_symbol;
4686
4687 elf_data_section->name = ".data";
4688 elf_data_section->flags = SEC_NO_FLAGS;
4689 elf_data_section->output_section = NULL;
4690 elf_data_section->owner = abfd;
4691 elf_data_symbol->name = ".data";
4692 elf_data_symbol->flags = BSF_SECTION_SYM | BSF_DYNAMIC;
4693 elf_data_symbol->section = elf_data_section;
252b5132
RH
4694 }
4695 /* This code used to do *secp = bfd_und_section_ptr if
4696 info->shared. I don't know why, and that doesn't make sense,
4697 so I took it out. */
b305ef96 4698 *secp = elf_tdata (abfd)->elf_data_section;
252b5132
RH
4699 break;
4700
4701 case SHN_MIPS_SUNDEFINED:
4702 *secp = bfd_und_section_ptr;
4703 break;
4704 }
4705
4706 if (SGI_COMPAT (abfd)
4707 && ! info->shared
4708 && info->hash->creator == abfd->xvec
4709 && strcmp (*namep, "__rld_obj_head") == 0)
4710 {
4711 struct elf_link_hash_entry *h;
4712
4713 /* Mark __rld_obj_head as dynamic. */
4714 h = NULL;
4715 if (! (_bfd_generic_link_add_one_symbol
4716 (info, abfd, *namep, BSF_GLOBAL, *secp,
4717 (bfd_vma) *valp, (const char *) NULL, false,
4718 get_elf_backend_data (abfd)->collect,
4719 (struct bfd_link_hash_entry **) &h)))
4720 return false;
be3ccd9c 4721 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
4722 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4723 h->type = STT_OBJECT;
4724
4725 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
4726 return false;
4727
4728 mips_elf_hash_table (info)->use_rld_obj_head = true;
4729 }
4730
4731 /* If this is a mips16 text symbol, add 1 to the value to make it
4732 odd. This will cause something like .word SYM to come up with
4733 the right value when it is loaded into the PC. */
4734 if (sym->st_other == STO_MIPS16)
4735 ++*valp;
4736
4737 return true;
4738}
4739
4740/* Structure used to pass information to mips_elf_output_extsym. */
4741
38b1a46c
NC
4742struct extsym_info
4743{
252b5132
RH
4744 bfd *abfd;
4745 struct bfd_link_info *info;
4746 struct ecoff_debug_info *debug;
4747 const struct ecoff_debug_swap *swap;
4748 boolean failed;
4749};
4750
4751/* This routine is used to write out ECOFF debugging external symbol
4752 information. It is called via mips_elf_link_hash_traverse. The
4753 ECOFF external symbol information must match the ELF external
4754 symbol information. Unfortunately, at this point we don't know
4755 whether a symbol is required by reloc information, so the two
4756 tables may wind up being different. We must sort out the external
4757 symbol information before we can set the final size of the .mdebug
4758 section, and we must set the size of the .mdebug section before we
4759 can relocate any sections, and we can't know which symbols are
4760 required by relocation until we relocate the sections.
4761 Fortunately, it is relatively unlikely that any symbol will be
4762 stripped but required by a reloc. In particular, it can not happen
4763 when generating a final executable. */
4764
4765static boolean
4766mips_elf_output_extsym (h, data)
4767 struct mips_elf_link_hash_entry *h;
4768 PTR data;
4769{
4770 struct extsym_info *einfo = (struct extsym_info *) data;
4771 boolean strip;
4772 asection *sec, *output_section;
4773
4774 if (h->root.indx == -2)
4775 strip = false;
4776 else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4777 || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
4778 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4779 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
4780 strip = true;
4781 else if (einfo->info->strip == strip_all
4782 || (einfo->info->strip == strip_some
4783 && bfd_hash_lookup (einfo->info->keep_hash,
4784 h->root.root.root.string,
4785 false, false) == NULL))
4786 strip = true;
4787 else
4788 strip = false;
4789
4790 if (strip)
4791 return true;
4792
4793 if (h->esym.ifd == -2)
4794 {
4795 h->esym.jmptbl = 0;
4796 h->esym.cobol_main = 0;
4797 h->esym.weakext = 0;
4798 h->esym.reserved = 0;
4799 h->esym.ifd = ifdNil;
4800 h->esym.asym.value = 0;
4801 h->esym.asym.st = stGlobal;
4802
f7cb7d68 4803 if (h->root.root.type == bfd_link_hash_undefined
be3ccd9c 4804 || h->root.root.type == bfd_link_hash_undefweak)
252b5132
RH
4805 {
4806 const char *name;
4807
4808 /* Use undefined class. Also, set class and type for some
4809 special symbols. */
4810 name = h->root.root.root.string;
4811 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
4812 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
4813 {
4814 h->esym.asym.sc = scData;
4815 h->esym.asym.st = stLabel;
4816 h->esym.asym.value = 0;
4817 }
4818 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
4819 {
4820 h->esym.asym.sc = scAbs;
4821 h->esym.asym.st = stLabel;
4822 h->esym.asym.value =
4823 mips_elf_hash_table (einfo->info)->procedure_count;
4824 }
4825 else if (strcmp (name, "_gp_disp") == 0)
4826 {
4827 h->esym.asym.sc = scAbs;
4828 h->esym.asym.st = stLabel;
4829 h->esym.asym.value = elf_gp (einfo->abfd);
4830 }
4831 else
4832 h->esym.asym.sc = scUndefined;
4833 }
4834 else if (h->root.root.type != bfd_link_hash_defined
4835 && h->root.root.type != bfd_link_hash_defweak)
4836 h->esym.asym.sc = scAbs;
4837 else
4838 {
4839 const char *name;
4840
4841 sec = h->root.root.u.def.section;
4842 output_section = sec->output_section;
4843
4844 /* When making a shared library and symbol h is the one from
4845 the another shared library, OUTPUT_SECTION may be null. */
4846 if (output_section == NULL)
4847 h->esym.asym.sc = scUndefined;
4848 else
4849 {
4850 name = bfd_section_name (output_section->owner, output_section);
4851
4852 if (strcmp (name, ".text") == 0)
4853 h->esym.asym.sc = scText;
4854 else if (strcmp (name, ".data") == 0)
4855 h->esym.asym.sc = scData;
4856 else if (strcmp (name, ".sdata") == 0)
4857 h->esym.asym.sc = scSData;
4858 else if (strcmp (name, ".rodata") == 0
4859 || strcmp (name, ".rdata") == 0)
4860 h->esym.asym.sc = scRData;
4861 else if (strcmp (name, ".bss") == 0)
4862 h->esym.asym.sc = scBss;
4863 else if (strcmp (name, ".sbss") == 0)
4864 h->esym.asym.sc = scSBss;
4865 else if (strcmp (name, ".init") == 0)
4866 h->esym.asym.sc = scInit;
4867 else if (strcmp (name, ".fini") == 0)
4868 h->esym.asym.sc = scFini;
4869 else
4870 h->esym.asym.sc = scAbs;
4871 }
4872 }
4873
4874 h->esym.asym.reserved = 0;
4875 h->esym.asym.index = indexNil;
4876 }
4877
4878 if (h->root.root.type == bfd_link_hash_common)
4879 h->esym.asym.value = h->root.root.u.c.size;
4880 else if (h->root.root.type == bfd_link_hash_defined
4881 || h->root.root.type == bfd_link_hash_defweak)
4882 {
4883 if (h->esym.asym.sc == scCommon)
4884 h->esym.asym.sc = scBss;
4885 else if (h->esym.asym.sc == scSCommon)
4886 h->esym.asym.sc = scSBss;
4887
4888 sec = h->root.root.u.def.section;
4889 output_section = sec->output_section;
4890 if (output_section != NULL)
4891 h->esym.asym.value = (h->root.root.u.def.value
4892 + sec->output_offset
4893 + output_section->vma);
4894 else
4895 h->esym.asym.value = 0;
4896 }
4897 else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4898 {
9117d219
NC
4899 struct mips_elf_link_hash_entry *hd = h;
4900 boolean no_fn_stub = h->no_fn_stub;
4901
4902 while (hd->root.root.type == bfd_link_hash_indirect)
252b5132 4903 {
9117d219
NC
4904 hd = (struct mips_elf_link_hash_entry *)h->root.root.u.i.link;
4905 no_fn_stub = no_fn_stub || hd->no_fn_stub;
252b5132 4906 }
9117d219
NC
4907
4908 if (!no_fn_stub)
4909 {
4910 /* Set type and value for a symbol with a function stub. */
4911 h->esym.asym.st = stProc;
4912 sec = hd->root.root.u.def.section;
4913 if (sec == NULL)
4914 h->esym.asym.value = 0;
4915 else
4916 {
4917 output_section = sec->output_section;
4918 if (output_section != NULL)
4919 h->esym.asym.value = (hd->root.plt.offset
4920 + sec->output_offset
4921 + output_section->vma);
4922 else
4923 h->esym.asym.value = 0;
4924 }
252b5132 4925#if 0 /* FIXME? */
9117d219 4926 h->esym.ifd = 0;
252b5132 4927#endif
9117d219 4928 }
252b5132
RH
4929 }
4930
4931 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
4932 h->root.root.root.string,
4933 &h->esym))
4934 {
4935 einfo->failed = true;
4936 return false;
4937 }
4938
4939 return true;
4940}
4941
4942/* Create a runtime procedure table from the .mdebug section. */
4943
4944static boolean
4945mips_elf_create_procedure_table (handle, abfd, info, s, debug)
4946 PTR handle;
4947 bfd *abfd;
4948 struct bfd_link_info *info;
4949 asection *s;
4950 struct ecoff_debug_info *debug;
4951{
4952 const struct ecoff_debug_swap *swap;
4953 HDRR *hdr = &debug->symbolic_header;
4954 RPDR *rpdr, *rp;
4955 struct rpdr_ext *erp;
4956 PTR rtproc;
4957 struct pdr_ext *epdr;
4958 struct sym_ext *esym;
4959 char *ss, **sv;
4960 char *str;
dc810e39
AM
4961 bfd_size_type size;
4962 bfd_size_type count;
252b5132
RH
4963 unsigned long sindex;
4964 unsigned long i;
4965 PDR pdr;
4966 SYMR sym;
4967 const char *no_name_func = _("static procedure (no name)");
4968
4969 epdr = NULL;
4970 rpdr = NULL;
4971 esym = NULL;
4972 ss = NULL;
4973 sv = NULL;
4974
4975 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
4976
4977 sindex = strlen (no_name_func) + 1;
4978 count = hdr->ipdMax;
4979 if (count > 0)
4980 {
4981 size = swap->external_pdr_size;
4982
4983 epdr = (struct pdr_ext *) bfd_malloc (size * count);
4984 if (epdr == NULL)
4985 goto error_return;
4986
4987 if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr))
4988 goto error_return;
4989
4990 size = sizeof (RPDR);
4991 rp = rpdr = (RPDR *) bfd_malloc (size * count);
4992 if (rpdr == NULL)
4993 goto error_return;
4994
dc810e39
AM
4995 size = sizeof (char *);
4996 sv = (char **) bfd_malloc (size * count);
252b5132
RH
4997 if (sv == NULL)
4998 goto error_return;
4999
5000 count = hdr->isymMax;
5001 size = swap->external_sym_size;
5002 esym = (struct sym_ext *) bfd_malloc (size * count);
5003 if (esym == NULL)
5004 goto error_return;
5005
5006 if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym))
5007 goto error_return;
5008
5009 count = hdr->issMax;
5010 ss = (char *) bfd_malloc (count);
5011 if (ss == NULL)
5012 goto error_return;
5013 if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss))
5014 goto error_return;
5015
5016 count = hdr->ipdMax;
dc810e39 5017 for (i = 0; i < (unsigned long) count; i++, rp++)
252b5132
RH
5018 {
5019 (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr);
5020 (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym);
5021 rp->adr = sym.value;
5022 rp->regmask = pdr.regmask;
5023 rp->regoffset = pdr.regoffset;
5024 rp->fregmask = pdr.fregmask;
5025 rp->fregoffset = pdr.fregoffset;
5026 rp->frameoffset = pdr.frameoffset;
5027 rp->framereg = pdr.framereg;
5028 rp->pcreg = pdr.pcreg;
5029 rp->irpss = sindex;
5030 sv[i] = ss + sym.iss;
5031 sindex += strlen (sv[i]) + 1;
5032 }
5033 }
5034
5035 size = sizeof (struct rpdr_ext) * (count + 2) + sindex;
5036 size = BFD_ALIGN (size, 16);
5037 rtproc = (PTR) bfd_alloc (abfd, size);
5038 if (rtproc == NULL)
5039 {
5040 mips_elf_hash_table (info)->procedure_count = 0;
5041 goto error_return;
5042 }
5043
5044 mips_elf_hash_table (info)->procedure_count = count + 2;
5045
5046 erp = (struct rpdr_ext *) rtproc;
5047 memset (erp, 0, sizeof (struct rpdr_ext));
5048 erp++;
5049 str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2);
5050 strcpy (str, no_name_func);
5051 str += strlen (no_name_func) + 1;
5052 for (i = 0; i < count; i++)
5053 {
5054 ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i);
5055 strcpy (str, sv[i]);
5056 str += strlen (sv[i]) + 1;
5057 }
dc810e39 5058 ECOFF_PUT_OFF (abfd, -1, (erp + count)->p_adr);
252b5132
RH
5059
5060 /* Set the size and contents of .rtproc section. */
5061 s->_raw_size = size;
5062 s->contents = (bfd_byte *) rtproc;
5063
5064 /* Skip this section later on (I don't think this currently
5065 matters, but someday it might). */
5066 s->link_order_head = (struct bfd_link_order *) NULL;
5067
5068 if (epdr != NULL)
5069 free (epdr);
5070 if (rpdr != NULL)
5071 free (rpdr);
5072 if (esym != NULL)
5073 free (esym);
5074 if (ss != NULL)
5075 free (ss);
5076 if (sv != NULL)
5077 free (sv);
5078
5079 return true;
5080
5081 error_return:
5082 if (epdr != NULL)
5083 free (epdr);
5084 if (rpdr != NULL)
5085 free (rpdr);
5086 if (esym != NULL)
5087 free (esym);
5088 if (ss != NULL)
5089 free (ss);
5090 if (sv != NULL)
5091 free (sv);
5092 return false;
5093}
5094
5095/* A comparison routine used to sort .gptab entries. */
5096
5097static int
5098gptab_compare (p1, p2)
5099 const PTR p1;
5100 const PTR p2;
5101{
5102 const Elf32_gptab *a1 = (const Elf32_gptab *) p1;
5103 const Elf32_gptab *a2 = (const Elf32_gptab *) p2;
5104
5105 return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value;
5106}
5107
5108/* We need to use a special link routine to handle the .reginfo and
5109 the .mdebug sections. We need to merge all instances of these
5110 sections together, not write them all out sequentially. */
5111
103186c6
MM
5112boolean
5113_bfd_mips_elf_final_link (abfd, info)
252b5132
RH
5114 bfd *abfd;
5115 struct bfd_link_info *info;
5116{
5117 asection **secpp;
5118 asection *o;
5119 struct bfd_link_order *p;
5120 asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
5121 asection *rtproc_sec;
5122 Elf32_RegInfo reginfo;
5123 struct ecoff_debug_info debug;
5124 const struct ecoff_debug_swap *swap
5125 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
5126 HDRR *symhdr = &debug.symbolic_header;
5127 PTR mdebug_handle = NULL;
f7cb7d68
UC
5128 asection *s;
5129 EXTR esym;
f7cb7d68 5130 unsigned int i;
dc810e39
AM
5131 bfd_size_type amt;
5132
5133 static const char * const secname[] =
38b1a46c 5134 {
be3ccd9c
KH
5135 ".text", ".init", ".fini", ".data",
5136 ".rodata", ".sdata", ".sbss", ".bss"
5137 };
38b1a46c
NC
5138 static const int sc[] =
5139 {
be3ccd9c
KH
5140 scText, scInit, scFini, scData,
5141 scRData, scSData, scSBss, scBss
5142 };
252b5132 5143
303f629d
MM
5144 /* If all the things we linked together were PIC, but we're
5145 producing an executable (rather than a shared object), then the
5146 resulting file is CPIC (i.e., it calls PIC code.) */
0dda5f7a
ILT
5147 if (!info->shared
5148 && !info->relocateable
5149 && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
252b5132 5150 {
303f629d
MM
5151 elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
5152 elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
252b5132
RH
5153 }
5154
b3be9b46
RH
5155 /* We'd carefully arranged the dynamic symbol indices, and then the
5156 generic size_dynamic_sections renumbered them out from under us.
5157 Rather than trying somehow to prevent the renumbering, just do
5158 the sort again. */
441d6d79 5159 if (elf_hash_table (info)->dynamic_sections_created)
b3be9b46
RH
5160 {
5161 bfd *dynobj;
5162 asection *got;
5163 struct mips_got_info *g;
5164
435394bf
MM
5165 /* When we resort, we must tell mips_elf_sort_hash_table what
5166 the lowest index it may use is. That's the number of section
5167 symbols we're going to add. The generic ELF linker only
5168 adds these symbols when building a shared object. Note that
5169 we count the sections after (possibly) removing the .options
5170 section above. */
be3ccd9c 5171 if (!mips_elf_sort_hash_table (info, (info->shared
435394bf
MM
5172 ? bfd_count_sections (abfd) + 1
5173 : 1)))
be3ccd9c 5174 return false;
b3be9b46
RH
5175
5176 /* Make sure we didn't grow the global .got region. */
5177 dynobj = elf_hash_table (info)->dynobj;
5178 got = bfd_get_section_by_name (dynobj, ".got");
5179 g = (struct mips_got_info *) elf_section_data (got)->tdata;
5180
8b237a89
MM
5181 if (g->global_gotsym != NULL)
5182 BFD_ASSERT ((elf_hash_table (info)->dynsymcount
5183 - g->global_gotsym->dynindx)
5184 <= g->global_gotno);
b3be9b46
RH
5185 }
5186
303f629d
MM
5187 /* On IRIX5, we omit the .options section. On IRIX6, however, we
5188 include it, even though we don't process it quite right. (Some
5189 entries are supposed to be merged.) Empirically, we seem to be
5190 better off including it then not. */
f7cb7d68 5191 if (IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
303f629d
MM
5192 for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
5193 {
5194 if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
5195 {
5196 for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
5197 if (p->type == bfd_indirect_link_order)
be3ccd9c 5198 p->u.indirect.section->flags &= ~SEC_HAS_CONTENTS;
303f629d 5199 (*secpp)->link_order_head = NULL;
9e7b37b3 5200 bfd_section_list_remove (abfd, secpp);
303f629d 5201 --abfd->section_count;
be3ccd9c 5202
303f629d
MM
5203 break;
5204 }
5205 }
5206
252b5132
RH
5207 /* Get a value for the GP register. */
5208 if (elf_gp (abfd) == 0)
5209 {
5210 struct bfd_link_hash_entry *h;
5211
5212 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
5213 if (h != (struct bfd_link_hash_entry *) NULL
5214 && h->type == bfd_link_hash_defined)
5215 elf_gp (abfd) = (h->u.def.value
5216 + h->u.def.section->output_section->vma
5217 + h->u.def.section->output_offset);
0db63c18
MM
5218 else if (info->relocateable)
5219 {
5220 bfd_vma lo;
5221
5222 /* Find the GP-relative section with the lowest offset. */
5223 lo = (bfd_vma) -1;
5224 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
be3ccd9c 5225 if (o->vma < lo
0db63c18
MM
5226 && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
5227 lo = o->vma;
5228
5229 /* And calculate GP relative to that. */
5230 elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd);
5231 }
252b5132
RH
5232 else
5233 {
5234 /* If the relocate_section function needs to do a reloc
5235 involving the GP value, it should make a reloc_dangerous
5236 callback to warn that GP is not defined. */
5237 }
5238 }
5239
5240 /* Go through the sections and collect the .reginfo and .mdebug
5241 information. */
5242 reginfo_sec = NULL;
5243 mdebug_sec = NULL;
5244 gptab_data_sec = NULL;
5245 gptab_bss_sec = NULL;
5246 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5247 {
5248 if (strcmp (o->name, ".reginfo") == 0)
5249 {
5250 memset (&reginfo, 0, sizeof reginfo);
5251
5252 /* We have found the .reginfo section in the output file.
5253 Look through all the link_orders comprising it and merge
5254 the information together. */
5255 for (p = o->link_order_head;
5256 p != (struct bfd_link_order *) NULL;
5257 p = p->next)
5258 {
5259 asection *input_section;
5260 bfd *input_bfd;
5261 Elf32_External_RegInfo ext;
5262 Elf32_RegInfo sub;
5263
5264 if (p->type != bfd_indirect_link_order)
5265 {
5266 if (p->type == bfd_fill_link_order)
5267 continue;
5268 abort ();
5269 }
5270
5271 input_section = p->u.indirect.section;
5272 input_bfd = input_section->owner;
5273
5274 /* The linker emulation code has probably clobbered the
5275 size to be zero bytes. */
5276 if (input_section->_raw_size == 0)
5277 input_section->_raw_size = sizeof (Elf32_External_RegInfo);
5278
5279 if (! bfd_get_section_contents (input_bfd, input_section,
5280 (PTR) &ext,
5281 (file_ptr) 0,
dc810e39 5282 (bfd_size_type) sizeof ext))
252b5132
RH
5283 return false;
5284
5285 bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub);
5286
5287 reginfo.ri_gprmask |= sub.ri_gprmask;
5288 reginfo.ri_cprmask[0] |= sub.ri_cprmask[0];
5289 reginfo.ri_cprmask[1] |= sub.ri_cprmask[1];
5290 reginfo.ri_cprmask[2] |= sub.ri_cprmask[2];
5291 reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
5292
5293 /* ri_gp_value is set by the function
5294 mips_elf32_section_processing when the section is
5295 finally written out. */
5296
5297 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5298 elf_link_input_bfd ignores this section. */
be3ccd9c 5299 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5300 }
5301
5302 /* Size has been set in mips_elf_always_size_sections */
5303 BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo));
5304
5305 /* Skip this section later on (I don't think this currently
5306 matters, but someday it might). */
5307 o->link_order_head = (struct bfd_link_order *) NULL;
5308
5309 reginfo_sec = o;
5310 }
5311
5312 if (strcmp (o->name, ".mdebug") == 0)
5313 {
5314 struct extsym_info einfo;
dc810e39 5315 bfd_vma last;
252b5132
RH
5316
5317 /* We have found the .mdebug section in the output file.
5318 Look through all the link_orders comprising it and merge
5319 the information together. */
5320 symhdr->magic = swap->sym_magic;
5321 /* FIXME: What should the version stamp be? */
5322 symhdr->vstamp = 0;
5323 symhdr->ilineMax = 0;
5324 symhdr->cbLine = 0;
5325 symhdr->idnMax = 0;
5326 symhdr->ipdMax = 0;
5327 symhdr->isymMax = 0;
5328 symhdr->ioptMax = 0;
5329 symhdr->iauxMax = 0;
5330 symhdr->issMax = 0;
5331 symhdr->issExtMax = 0;
5332 symhdr->ifdMax = 0;
5333 symhdr->crfd = 0;
5334 symhdr->iextMax = 0;
5335
5336 /* We accumulate the debugging information itself in the
5337 debug_info structure. */
5338 debug.line = NULL;
5339 debug.external_dnr = NULL;
5340 debug.external_pdr = NULL;
5341 debug.external_sym = NULL;
5342 debug.external_opt = NULL;
5343 debug.external_aux = NULL;
5344 debug.ss = NULL;
5345 debug.ssext = debug.ssext_end = NULL;
5346 debug.external_fdr = NULL;
5347 debug.external_rfd = NULL;
5348 debug.external_ext = debug.external_ext_end = NULL;
5349
5350 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
5351 if (mdebug_handle == (PTR) NULL)
5352 return false;
5353
be3ccd9c
KH
5354 esym.jmptbl = 0;
5355 esym.cobol_main = 0;
5356 esym.weakext = 0;
5357 esym.reserved = 0;
5358 esym.ifd = ifdNil;
5359 esym.asym.iss = issNil;
5360 esym.asym.st = stLocal;
5361 esym.asym.reserved = 0;
5362 esym.asym.index = indexNil;
5363 last = 0;
dc810e39 5364 for (i = 0; i < sizeof (secname) / sizeof (secname[0]); i++)
be3ccd9c
KH
5365 {
5366 esym.asym.sc = sc[i];
dc810e39 5367 s = bfd_get_section_by_name (abfd, secname[i]);
be3ccd9c
KH
5368 if (s != NULL)
5369 {
5370 esym.asym.value = s->vma;
5371 last = s->vma + s->_raw_size;
5372 }
5373 else
5374 esym.asym.value = last;
5375 if (!bfd_ecoff_debug_one_external (abfd, &debug, swap,
dc810e39 5376 secname[i], &esym))
be3ccd9c
KH
5377 return false;
5378 }
252b5132
RH
5379
5380 for (p = o->link_order_head;
5381 p != (struct bfd_link_order *) NULL;
5382 p = p->next)
5383 {
5384 asection *input_section;
5385 bfd *input_bfd;
5386 const struct ecoff_debug_swap *input_swap;
5387 struct ecoff_debug_info input_debug;
5388 char *eraw_src;
5389 char *eraw_end;
5390
5391 if (p->type != bfd_indirect_link_order)
5392 {
5393 if (p->type == bfd_fill_link_order)
5394 continue;
5395 abort ();
5396 }
5397
5398 input_section = p->u.indirect.section;
5399 input_bfd = input_section->owner;
5400
5401 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
5402 || (get_elf_backend_data (input_bfd)
5403 ->elf_backend_ecoff_debug_swap) == NULL)
5404 {
5405 /* I don't know what a non MIPS ELF bfd would be
5406 doing with a .mdebug section, but I don't really
5407 want to deal with it. */
5408 continue;
5409 }
5410
5411 input_swap = (get_elf_backend_data (input_bfd)
5412 ->elf_backend_ecoff_debug_swap);
5413
5414 BFD_ASSERT (p->size == input_section->_raw_size);
5415
5416 /* The ECOFF linking code expects that we have already
5417 read in the debugging information and set up an
5418 ecoff_debug_info structure, so we do that now. */
5419 if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
5420 &input_debug))
5421 return false;
5422
5423 if (! (bfd_ecoff_debug_accumulate
5424 (mdebug_handle, abfd, &debug, swap, input_bfd,
5425 &input_debug, input_swap, info)))
5426 return false;
5427
5428 /* Loop through the external symbols. For each one with
5429 interesting information, try to find the symbol in
5430 the linker global hash table and save the information
5431 for the output external symbols. */
5432 eraw_src = input_debug.external_ext;
5433 eraw_end = (eraw_src
5434 + (input_debug.symbolic_header.iextMax
5435 * input_swap->external_ext_size));
5436 for (;
5437 eraw_src < eraw_end;
5438 eraw_src += input_swap->external_ext_size)
5439 {
5440 EXTR ext;
5441 const char *name;
5442 struct mips_elf_link_hash_entry *h;
5443
5444 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
5445 if (ext.asym.sc == scNil
5446 || ext.asym.sc == scUndefined
5447 || ext.asym.sc == scSUndefined)
5448 continue;
5449
5450 name = input_debug.ssext + ext.asym.iss;
5451 h = mips_elf_link_hash_lookup (mips_elf_hash_table (info),
5452 name, false, false, true);
5453 if (h == NULL || h->esym.ifd != -2)
5454 continue;
5455
5456 if (ext.ifd != -1)
5457 {
5458 BFD_ASSERT (ext.ifd
5459 < input_debug.symbolic_header.ifdMax);
5460 ext.ifd = input_debug.ifdmap[ext.ifd];
5461 }
5462
5463 h->esym = ext;
5464 }
5465
5466 /* Free up the information we just read. */
5467 free (input_debug.line);
5468 free (input_debug.external_dnr);
5469 free (input_debug.external_pdr);
5470 free (input_debug.external_sym);
5471 free (input_debug.external_opt);
5472 free (input_debug.external_aux);
5473 free (input_debug.ss);
5474 free (input_debug.ssext);
5475 free (input_debug.external_fdr);
5476 free (input_debug.external_rfd);
5477 free (input_debug.external_ext);
5478
5479 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5480 elf_link_input_bfd ignores this section. */
be3ccd9c 5481 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5482 }
5483
5484 if (SGI_COMPAT (abfd) && info->shared)
5485 {
5486 /* Create .rtproc section. */
5487 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5488 if (rtproc_sec == NULL)
5489 {
5490 flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
5491 | SEC_LINKER_CREATED | SEC_READONLY);
5492
5493 rtproc_sec = bfd_make_section (abfd, ".rtproc");
5494 if (rtproc_sec == NULL
5495 || ! bfd_set_section_flags (abfd, rtproc_sec, flags)
5496 || ! bfd_set_section_alignment (abfd, rtproc_sec, 4))
5497 return false;
5498 }
5499
5500 if (! mips_elf_create_procedure_table (mdebug_handle, abfd,
5501 info, rtproc_sec, &debug))
5502 return false;
5503 }
5504
5505 /* Build the external symbol information. */
5506 einfo.abfd = abfd;
5507 einfo.info = info;
5508 einfo.debug = &debug;
5509 einfo.swap = swap;
5510 einfo.failed = false;
5511 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
5512 mips_elf_output_extsym,
5513 (PTR) &einfo);
5514 if (einfo.failed)
5515 return false;
5516
5517 /* Set the size of the .mdebug section. */
5518 o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap);
5519
5520 /* Skip this section later on (I don't think this currently
5521 matters, but someday it might). */
5522 o->link_order_head = (struct bfd_link_order *) NULL;
5523
5524 mdebug_sec = o;
5525 }
5526
5527 if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0)
5528 {
5529 const char *subname;
5530 unsigned int c;
5531 Elf32_gptab *tab;
5532 Elf32_External_gptab *ext_tab;
dc810e39 5533 unsigned int j;
252b5132
RH
5534
5535 /* The .gptab.sdata and .gptab.sbss sections hold
5536 information describing how the small data area would
5537 change depending upon the -G switch. These sections
5538 not used in executables files. */
5539 if (! info->relocateable)
5540 {
252b5132
RH
5541 for (p = o->link_order_head;
5542 p != (struct bfd_link_order *) NULL;
5543 p = p->next)
5544 {
5545 asection *input_section;
5546
5547 if (p->type != bfd_indirect_link_order)
5548 {
5549 if (p->type == bfd_fill_link_order)
5550 continue;
5551 abort ();
5552 }
5553
5554 input_section = p->u.indirect.section;
5555
5556 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5557 elf_link_input_bfd ignores this section. */
be3ccd9c 5558 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5559 }
5560
5561 /* Skip this section later on (I don't think this
5562 currently matters, but someday it might). */
5563 o->link_order_head = (struct bfd_link_order *) NULL;
5564
5565 /* Really remove the section. */
5566 for (secpp = &abfd->sections;
5567 *secpp != o;
5568 secpp = &(*secpp)->next)
5569 ;
9e7b37b3 5570 bfd_section_list_remove (abfd, secpp);
252b5132
RH
5571 --abfd->section_count;
5572
5573 continue;
5574 }
5575
5576 /* There is one gptab for initialized data, and one for
5577 uninitialized data. */
5578 if (strcmp (o->name, ".gptab.sdata") == 0)
5579 gptab_data_sec = o;
5580 else if (strcmp (o->name, ".gptab.sbss") == 0)
5581 gptab_bss_sec = o;
5582 else
5583 {
5584 (*_bfd_error_handler)
5585 (_("%s: illegal section name `%s'"),
5586 bfd_get_filename (abfd), o->name);
5587 bfd_set_error (bfd_error_nonrepresentable_section);
5588 return false;
5589 }
5590
5591 /* The linker script always combines .gptab.data and
5592 .gptab.sdata into .gptab.sdata, and likewise for
5593 .gptab.bss and .gptab.sbss. It is possible that there is
5594 no .sdata or .sbss section in the output file, in which
5595 case we must change the name of the output section. */
5596 subname = o->name + sizeof ".gptab" - 1;
5597 if (bfd_get_section_by_name (abfd, subname) == NULL)
5598 {
5599 if (o == gptab_data_sec)
5600 o->name = ".gptab.data";
5601 else
5602 o->name = ".gptab.bss";
5603 subname = o->name + sizeof ".gptab" - 1;
5604 BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL);
5605 }
5606
5607 /* Set up the first entry. */
5608 c = 1;
dc810e39
AM
5609 amt = c * sizeof (Elf32_gptab);
5610 tab = (Elf32_gptab *) bfd_malloc (amt);
252b5132
RH
5611 if (tab == NULL)
5612 return false;
5613 tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd);
5614 tab[0].gt_header.gt_unused = 0;
5615
5616 /* Combine the input sections. */
5617 for (p = o->link_order_head;
5618 p != (struct bfd_link_order *) NULL;
5619 p = p->next)
5620 {
5621 asection *input_section;
5622 bfd *input_bfd;
5623 bfd_size_type size;
5624 unsigned long last;
5625 bfd_size_type gpentry;
5626
5627 if (p->type != bfd_indirect_link_order)
5628 {
5629 if (p->type == bfd_fill_link_order)
5630 continue;
5631 abort ();
5632 }
5633
5634 input_section = p->u.indirect.section;
5635 input_bfd = input_section->owner;
5636
5637 /* Combine the gptab entries for this input section one
5638 by one. We know that the input gptab entries are
5639 sorted by ascending -G value. */
5640 size = bfd_section_size (input_bfd, input_section);
5641 last = 0;
5642 for (gpentry = sizeof (Elf32_External_gptab);
5643 gpentry < size;
5644 gpentry += sizeof (Elf32_External_gptab))
5645 {
5646 Elf32_External_gptab ext_gptab;
5647 Elf32_gptab int_gptab;
5648 unsigned long val;
5649 unsigned long add;
5650 boolean exact;
5651 unsigned int look;
5652
5653 if (! (bfd_get_section_contents
5654 (input_bfd, input_section, (PTR) &ext_gptab,
dc810e39
AM
5655 (file_ptr) gpentry,
5656 (bfd_size_type) sizeof (Elf32_External_gptab))))
252b5132
RH
5657 {
5658 free (tab);
5659 return false;
5660 }
5661
5662 bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab,
5663 &int_gptab);
5664 val = int_gptab.gt_entry.gt_g_value;
5665 add = int_gptab.gt_entry.gt_bytes - last;
5666
5667 exact = false;
5668 for (look = 1; look < c; look++)
5669 {
5670 if (tab[look].gt_entry.gt_g_value >= val)
5671 tab[look].gt_entry.gt_bytes += add;
5672
5673 if (tab[look].gt_entry.gt_g_value == val)
5674 exact = true;
5675 }
5676
5677 if (! exact)
5678 {
5679 Elf32_gptab *new_tab;
5680 unsigned int max;
5681
5682 /* We need a new table entry. */
dc810e39
AM
5683 amt = (bfd_size_type) (c + 1) * sizeof (Elf32_gptab);
5684 new_tab = (Elf32_gptab *) bfd_realloc ((PTR) tab, amt);
252b5132
RH
5685 if (new_tab == NULL)
5686 {
5687 free (tab);
5688 return false;
5689 }
5690 tab = new_tab;
5691 tab[c].gt_entry.gt_g_value = val;
5692 tab[c].gt_entry.gt_bytes = add;
5693
5694 /* Merge in the size for the next smallest -G
5695 value, since that will be implied by this new
5696 value. */
5697 max = 0;
5698 for (look = 1; look < c; look++)
5699 {
5700 if (tab[look].gt_entry.gt_g_value < val
5701 && (max == 0
5702 || (tab[look].gt_entry.gt_g_value
5703 > tab[max].gt_entry.gt_g_value)))
5704 max = look;
5705 }
5706 if (max != 0)
5707 tab[c].gt_entry.gt_bytes +=
5708 tab[max].gt_entry.gt_bytes;
5709
5710 ++c;
5711 }
5712
5713 last = int_gptab.gt_entry.gt_bytes;
5714 }
5715
5716 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5717 elf_link_input_bfd ignores this section. */
be3ccd9c 5718 input_section->flags &= ~SEC_HAS_CONTENTS;
252b5132
RH
5719 }
5720
5721 /* The table must be sorted by -G value. */
5722 if (c > 2)
5723 qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare);
5724
5725 /* Swap out the table. */
dc810e39
AM
5726 amt = (bfd_size_type) c * sizeof (Elf32_External_gptab);
5727 ext_tab = (Elf32_External_gptab *) bfd_alloc (abfd, amt);
252b5132
RH
5728 if (ext_tab == NULL)
5729 {
5730 free (tab);
5731 return false;
5732 }
5733
dc810e39
AM
5734 for (j = 0; j < c; j++)
5735 bfd_mips_elf32_swap_gptab_out (abfd, tab + j, ext_tab + j);
252b5132
RH
5736 free (tab);
5737
5738 o->_raw_size = c * sizeof (Elf32_External_gptab);
5739 o->contents = (bfd_byte *) ext_tab;
5740
5741 /* Skip this section later on (I don't think this currently
5742 matters, but someday it might). */
5743 o->link_order_head = (struct bfd_link_order *) NULL;
5744 }
5745 }
5746
5747 /* Invoke the regular ELF backend linker to do all the work. */
9ebbd33e
MM
5748 if (ABI_64_P (abfd))
5749 {
5750#ifdef BFD64
5751 if (!bfd_elf64_bfd_final_link (abfd, info))
5752 return false;
5753#else
5754 abort ();
103186c6 5755 return false;
9ebbd33e
MM
5756#endif /* BFD64 */
5757 }
5758 else if (!bfd_elf32_bfd_final_link (abfd, info))
5759 return false;
252b5132
RH
5760
5761 /* Now write out the computed sections. */
5762
5763 if (reginfo_sec != (asection *) NULL)
5764 {
5765 Elf32_External_RegInfo ext;
5766
5767 bfd_mips_elf32_swap_reginfo_out (abfd, &reginfo, &ext);
5768 if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext,
dc810e39 5769 (file_ptr) 0, (bfd_size_type) sizeof ext))
252b5132
RH
5770 return false;
5771 }
5772
5773 if (mdebug_sec != (asection *) NULL)
5774 {
5775 BFD_ASSERT (abfd->output_has_begun);
5776 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5777 swap, info,
5778 mdebug_sec->filepos))
5779 return false;
5780
5781 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5782 }
5783
5784 if (gptab_data_sec != (asection *) NULL)
5785 {
5786 if (! bfd_set_section_contents (abfd, gptab_data_sec,
5787 gptab_data_sec->contents,
5788 (file_ptr) 0,
5789 gptab_data_sec->_raw_size))
5790 return false;
5791 }
5792
5793 if (gptab_bss_sec != (asection *) NULL)
5794 {
5795 if (! bfd_set_section_contents (abfd, gptab_bss_sec,
5796 gptab_bss_sec->contents,
5797 (file_ptr) 0,
5798 gptab_bss_sec->_raw_size))
5799 return false;
5800 }
5801
5802 if (SGI_COMPAT (abfd))
5803 {
5804 rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc");
5805 if (rtproc_sec != NULL)
5806 {
5807 if (! bfd_set_section_contents (abfd, rtproc_sec,
5808 rtproc_sec->contents,
5809 (file_ptr) 0,
5810 rtproc_sec->_raw_size))
5811 return false;
5812 }
5813 }
5814
5815 return true;
5816}
5817
adb76a3e
UC
5818/* This function is called via qsort() to sort the dynamic relocation
5819 entries by increasing r_symndx value. */
5820
5821static int
be3ccd9c
KH
5822sort_dynamic_relocs (arg1, arg2)
5823 const PTR arg1;
5824 const PTR arg2;
adb76a3e
UC
5825{
5826 const Elf32_External_Rel *ext_reloc1 = (const Elf32_External_Rel *) arg1;
5827 const Elf32_External_Rel *ext_reloc2 = (const Elf32_External_Rel *) arg2;
5828
5829 Elf_Internal_Rel int_reloc1;
5830 Elf_Internal_Rel int_reloc2;
5831
be3ccd9c
KH
5832 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc1, &int_reloc1);
5833 bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, ext_reloc2, &int_reloc2);
adb76a3e 5834
be3ccd9c 5835 return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info));
adb76a3e
UC
5836}
5837
7403cb63 5838/* Returns the GOT section for ABFD. */
252b5132 5839
7403cb63
MM
5840static asection *
5841mips_elf_got_section (abfd)
5842 bfd *abfd;
252b5132 5843{
7403cb63
MM
5844 return bfd_get_section_by_name (abfd, ".got");
5845}
5846
5847/* Returns the GOT information associated with the link indicated by
be3ccd9c 5848 INFO. If SGOTP is non-NULL, it is filled in with the GOT
7403cb63
MM
5849 section. */
5850
5851static struct mips_got_info *
5852mips_elf_got_info (abfd, sgotp)
5853 bfd *abfd;
5854 asection **sgotp;
5855{
5856 asection *sgot;
252b5132
RH
5857 struct mips_got_info *g;
5858
7403cb63
MM
5859 sgot = mips_elf_got_section (abfd);
5860 BFD_ASSERT (sgot != NULL);
5861 BFD_ASSERT (elf_section_data (sgot) != NULL);
5862 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
5863 BFD_ASSERT (g != NULL);
252b5132 5864
7403cb63
MM
5865 if (sgotp)
5866 *sgotp = sgot;
5867 return g;
5868}
252b5132 5869
6387d602
ILT
5870/* Return whether a relocation is against a local symbol. */
5871
5872static boolean
b305ef96
UC
5873mips_elf_local_relocation_p (input_bfd, relocation, local_sections,
5874 check_forced)
6387d602
ILT
5875 bfd *input_bfd;
5876 const Elf_Internal_Rela *relocation;
5877 asection **local_sections;
b305ef96 5878 boolean check_forced;
6387d602
ILT
5879{
5880 unsigned long r_symndx;
5881 Elf_Internal_Shdr *symtab_hdr;
be3ccd9c 5882 struct mips_elf_link_hash_entry *h;
b305ef96 5883 size_t extsymoff;
6387d602
ILT
5884
5885 r_symndx = ELF32_R_SYM (relocation->r_info);
5886 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
b305ef96
UC
5887 extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info;
5888
5889 if (r_symndx < extsymoff)
5890 return true;
5891 if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL)
5892 return true;
5893
5894 if (check_forced)
6387d602 5895 {
be3ccd9c 5896 /* Look up the hash table to check whether the symbol
b305ef96 5897 was forced local. */
be3ccd9c
KH
5898 h = (struct mips_elf_link_hash_entry *)
5899 elf_sym_hashes (input_bfd) [r_symndx - extsymoff];
5900 /* Find the real hash-table entry for this symbol. */
5901 while (h->root.root.type == bfd_link_hash_indirect
b305ef96 5902 || h->root.root.type == bfd_link_hash_warning)
be3ccd9c
KH
5903 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
5904 if ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
5905 return true;
6387d602 5906 }
b305ef96
UC
5907
5908 return false;
6387d602
ILT
5909}
5910
7403cb63 5911/* Sign-extend VALUE, which has the indicated number of BITS. */
252b5132 5912
7403cb63
MM
5913static bfd_vma
5914mips_elf_sign_extend (value, bits)
5915 bfd_vma value;
5916 int bits;
5917{
be3ccd9c 5918 if (value & ((bfd_vma) 1 << (bits - 1)))
7403cb63 5919 /* VALUE is negative. */
be3ccd9c
KH
5920 value |= ((bfd_vma) - 1) << bits;
5921
7403cb63
MM
5922 return value;
5923}
252b5132 5924
7403cb63
MM
5925/* Return non-zero if the indicated VALUE has overflowed the maximum
5926 range expressable by a signed number with the indicated number of
5927 BITS. */
252b5132 5928
7403cb63
MM
5929static boolean
5930mips_elf_overflow_p (value, bits)
5931 bfd_vma value;
5932 int bits;
5933{
5934 bfd_signed_vma svalue = (bfd_signed_vma) value;
252b5132 5935
7403cb63
MM
5936 if (svalue > (1 << (bits - 1)) - 1)
5937 /* The value is too big. */
5938 return true;
5939 else if (svalue < -(1 << (bits - 1)))
5940 /* The value is too small. */
5941 return true;
be3ccd9c 5942
7403cb63
MM
5943 /* All is well. */
5944 return false;
5945}
252b5132 5946
7403cb63 5947/* Calculate the %high function. */
252b5132 5948
7403cb63
MM
5949static bfd_vma
5950mips_elf_high (value)
5951 bfd_vma value;
5952{
5953 return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
5954}
252b5132 5955
7403cb63
MM
5956/* Calculate the %higher function. */
5957
5958static bfd_vma
5959mips_elf_higher (value)
5f771d47 5960 bfd_vma value ATTRIBUTE_UNUSED;
7403cb63
MM
5961{
5962#ifdef BFD64
5963 return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
5964#else
5965 abort ();
5966 return (bfd_vma) -1;
5967#endif
5968}
5969
5970/* Calculate the %highest function. */
5971
be3ccd9c 5972static bfd_vma
7403cb63 5973mips_elf_highest (value)
5f771d47 5974 bfd_vma value ATTRIBUTE_UNUSED;
7403cb63
MM
5975{
5976#ifdef BFD64
0af99795 5977 return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff;
7403cb63
MM
5978#else
5979 abort ();
5980 return (bfd_vma) -1;
5981#endif
5982}
5983
5984/* Returns the GOT index for the global symbol indicated by H. */
5985
be3ccd9c 5986static bfd_vma
7403cb63
MM
5987mips_elf_global_got_index (abfd, h)
5988 bfd *abfd;
5989 struct elf_link_hash_entry *h;
5990{
5991 bfd_vma index;
5992 asection *sgot;
5993 struct mips_got_info *g;
5994
5995 g = mips_elf_got_info (abfd, &sgot);
5996
5997 /* Once we determine the global GOT entry with the lowest dynamic
5998 symbol table index, we must put all dynamic symbols with greater
5999 indices into the GOT. That makes it easy to calculate the GOT
6000 offset. */
6001 BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
be3ccd9c 6002 index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
103186c6 6003 * MIPS_ELF_GOT_SIZE (abfd));
7403cb63
MM
6004 BFD_ASSERT (index < sgot->_raw_size);
6005
6006 return index;
6007}
6008
6009/* Returns the offset for the entry at the INDEXth position
6010 in the GOT. */
6011
6012static bfd_vma
6013mips_elf_got_offset_from_index (dynobj, output_bfd, index)
6014 bfd *dynobj;
6015 bfd *output_bfd;
6016 bfd_vma index;
6017{
6018 asection *sgot;
6019 bfd_vma gp;
7403cb63 6020
103186c6 6021 sgot = mips_elf_got_section (dynobj);
7403cb63 6022 gp = _bfd_get_gp_value (output_bfd);
be3ccd9c 6023 return (sgot->output_section->vma + sgot->output_offset + index -
7403cb63
MM
6024 gp);
6025}
6026
6027/* If H is a symbol that needs a global GOT entry, but has a dynamic
6028 symbol table index lower than any we've seen to date, record it for
6029 posterity. */
6030
6031static boolean
6032mips_elf_record_global_got_symbol (h, info, g)
6033 struct elf_link_hash_entry *h;
6034 struct bfd_link_info *info;
5f771d47 6035 struct mips_got_info *g ATTRIBUTE_UNUSED;
7403cb63
MM
6036{
6037 /* A global symbol in the GOT must also be in the dynamic symbol
6038 table. */
6039 if (h->dynindx == -1
6040 && !bfd_elf32_link_record_dynamic_symbol (info, h))
6041 return false;
be3ccd9c 6042
3a6b8597 6043 /* If we've already marked this entry as needing GOT space, we don't
7403cb63 6044 need to do it again. */
3a6b8597 6045 if (h->got.offset != (bfd_vma) -1)
7403cb63
MM
6046 return true;
6047
6048 /* By setting this to a value other than -1, we are indicating that
3a6b8597
AM
6049 there needs to be a GOT entry for H. Avoid using zero, as the
6050 generic ELF copy_indirect_symbol tests for <= 0. */
6051 h->got.offset = 1;
7403cb63
MM
6052
6053 return true;
6054}
6055
6056/* This structure is passed to mips_elf_sort_hash_table_f when sorting
6057 the dynamic symbols. */
be3ccd9c 6058
38b1a46c
NC
6059struct mips_elf_hash_sort_data
6060{
7403cb63
MM
6061 /* The symbol in the global GOT with the lowest dynamic symbol table
6062 index. */
6063 struct elf_link_hash_entry *low;
6064 /* The least dynamic symbol table index corresponding to a symbol
6065 with a GOT entry. */
6066 long min_got_dynindx;
6067 /* The greatest dynamic symbol table index not corresponding to a
6068 symbol without a GOT entry. */
6069 long max_non_got_dynindx;
6070};
6071
6072/* If H needs a GOT entry, assign it the highest available dynamic
be3ccd9c 6073 index. Otherwise, assign it the lowest available dynamic
7403cb63
MM
6074 index. */
6075
6076static boolean
6077mips_elf_sort_hash_table_f (h, data)
6078 struct mips_elf_link_hash_entry *h;
6079 PTR data;
6080{
be3ccd9c 6081 struct mips_elf_hash_sort_data *hsd
7403cb63
MM
6082 = (struct mips_elf_hash_sort_data *) data;
6083
6084 /* Symbols without dynamic symbol table entries aren't interesting
6085 at all. */
6086 if (h->root.dynindx == -1)
6087 return true;
6088
3a6b8597 6089 if (h->root.got.offset != 1)
7403cb63
MM
6090 h->root.dynindx = hsd->max_non_got_dynindx++;
6091 else
6092 {
6093 h->root.dynindx = --hsd->min_got_dynindx;
6094 hsd->low = (struct elf_link_hash_entry *) h;
6095 }
6096
6097 return true;
6098}
6099
6100/* Sort the dynamic symbol table so that symbols that need GOT entries
6101 appear towards the end. This reduces the amount of GOT space
b3be9b46
RH
6102 required. MAX_LOCAL is used to set the number of local symbols
6103 known to be in the dynamic symbol table. During
6104 mips_elf_size_dynamic_sections, this value is 1. Afterward, the
6105 section symbols are added and the count is higher. */
7403cb63
MM
6106
6107static boolean
b3be9b46 6108mips_elf_sort_hash_table (info, max_local)
7403cb63 6109 struct bfd_link_info *info;
b3be9b46 6110 unsigned long max_local;
7403cb63
MM
6111{
6112 struct mips_elf_hash_sort_data hsd;
6113 struct mips_got_info *g;
6114 bfd *dynobj;
6115
6116 dynobj = elf_hash_table (info)->dynobj;
6117
6118 hsd.low = NULL;
6119 hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
b3be9b46 6120 hsd.max_non_got_dynindx = max_local;
be3ccd9c
KH
6121 mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
6122 elf_hash_table (info)),
6123 mips_elf_sort_hash_table_f,
7403cb63
MM
6124 &hsd);
6125
7e766c3b 6126 /* There should have been enough room in the symbol table to
7403cb63 6127 accomodate both the GOT and non-GOT symbols. */
b305ef96 6128 BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
7403cb63
MM
6129
6130 /* Now we know which dynamic symbol has the lowest dynamic symbol
6131 table index in the GOT. */
6132 g = mips_elf_got_info (dynobj, NULL);
6133 g->global_gotsym = hsd.low;
6134
6135 return true;
6136}
6137
6138/* Create a local GOT entry for VALUE. Return the index of the entry,
6139 or -1 if it could not be created. */
6140
6141static bfd_vma
6142mips_elf_create_local_got_entry (abfd, g, sgot, value)
6143 bfd *abfd;
6144 struct mips_got_info *g;
6145 asection *sgot;
6146 bfd_vma value;
6147{
6148 if (g->assigned_gotno >= g->local_gotno)
6149 {
6150 /* We didn't allocate enough space in the GOT. */
6151 (*_bfd_error_handler)
6152 (_("not enough GOT space for local GOT entries"));
6153 bfd_set_error (bfd_error_bad_value);
6154 return (bfd_vma) -1;
6155 }
6156
103186c6 6157 MIPS_ELF_PUT_WORD (abfd, value,
be3ccd9c 6158 (sgot->contents
103186c6
MM
6159 + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno));
6160 return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
7403cb63
MM
6161}
6162
6163/* Returns the GOT offset at which the indicated address can be found.
6164 If there is not yet a GOT entry for this value, create one. Returns
6165 -1 if no satisfactory GOT offset can be found. */
6166
6167static bfd_vma
6168mips_elf_local_got_index (abfd, info, value)
6169 bfd *abfd;
6170 struct bfd_link_info *info;
6171 bfd_vma value;
6172{
6173 asection *sgot;
6174 struct mips_got_info *g;
6175 bfd_byte *entry;
6176
6177 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6178
6179 /* Look to see if we already have an appropriate entry. */
be3ccd9c
KH
6180 for (entry = (sgot->contents
6181 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
103186c6
MM
6182 entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
6183 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6184 {
103186c6 6185 bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry);
7403cb63
MM
6186 if (address == value)
6187 return entry - sgot->contents;
6188 }
6189
6190 return mips_elf_create_local_got_entry (abfd, g, sgot, value);
6191}
6192
6193/* Find a GOT entry that is within 32KB of the VALUE. These entries
6194 are supposed to be placed at small offsets in the GOT, i.e.,
6195 within 32KB of GP. Return the index into the GOT for this page,
6196 and store the offset from this entry to the desired address in
6197 OFFSETP, if it is non-NULL. */
6198
6199static bfd_vma
6200mips_elf_got_page (abfd, info, value, offsetp)
6201 bfd *abfd;
6202 struct bfd_link_info *info;
6203 bfd_vma value;
6204 bfd_vma *offsetp;
6205{
6206 asection *sgot;
6207 struct mips_got_info *g;
6208 bfd_byte *entry;
6209 bfd_byte *last_entry;
86033394 6210 bfd_vma index = 0;
7403cb63
MM
6211 bfd_vma address;
6212
6213 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6214
6215 /* Look to see if we aleady have an appropriate entry. */
103186c6 6216 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
be3ccd9c 6217 for (entry = (sgot->contents
103186c6 6218 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
7403cb63 6219 entry != last_entry;
103186c6 6220 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6221 {
103186c6
MM
6222 address = MIPS_ELF_GET_WORD (abfd, entry);
6223
7403cb63
MM
6224 if (!mips_elf_overflow_p (value - address, 16))
6225 {
6226 /* This entry will serve as the page pointer. We can add a
6227 16-bit number to it to get the actual address. */
6228 index = entry - sgot->contents;
6229 break;
252b5132 6230 }
7403cb63
MM
6231 }
6232
6233 /* If we didn't have an appropriate entry, we create one now. */
6234 if (entry == last_entry)
6235 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6236
6237 if (offsetp)
6238 {
103186c6 6239 address = MIPS_ELF_GET_WORD (abfd, entry);
7403cb63
MM
6240 *offsetp = value - address;
6241 }
6242
6243 return index;
6244}
6245
6246/* Find a GOT entry whose higher-order 16 bits are the same as those
6247 for value. Return the index into the GOT for this entry. */
6248
6249static bfd_vma
b305ef96 6250mips_elf_got16_entry (abfd, info, value, external)
7403cb63
MM
6251 bfd *abfd;
6252 struct bfd_link_info *info;
6253 bfd_vma value;
b305ef96 6254 boolean external;
7403cb63
MM
6255{
6256 asection *sgot;
6257 struct mips_got_info *g;
6258 bfd_byte *entry;
6259 bfd_byte *last_entry;
86033394 6260 bfd_vma index = 0;
7403cb63
MM
6261 bfd_vma address;
6262
b305ef96
UC
6263 if (! external)
6264 {
6265 /* Although the ABI says that it is "the high-order 16 bits" that we
6266 want, it is really the %high value. The complete value is
6267 calculated with a `addiu' of a LO16 relocation, just as with a
6268 HI16/LO16 pair. */
6269 value = mips_elf_high (value) << 16;
6270 }
6271
7403cb63
MM
6272 g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
6273
6274 /* Look to see if we already have an appropriate entry. */
103186c6 6275 last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
be3ccd9c 6276 for (entry = (sgot->contents
103186c6 6277 + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
7403cb63 6278 entry != last_entry;
103186c6 6279 entry += MIPS_ELF_GOT_SIZE (abfd))
7403cb63 6280 {
103186c6 6281 address = MIPS_ELF_GET_WORD (abfd, entry);
b305ef96 6282 if (address == value)
252b5132 6283 {
b305ef96
UC
6284 /* This entry has the right high-order 16 bits, and the low-order
6285 16 bits are set to zero. */
4f2860ca 6286 index = entry - sgot->contents;
7403cb63
MM
6287 break;
6288 }
6289 }
6290
6291 /* If we didn't have an appropriate entry, we create one now. */
6292 if (entry == last_entry)
6293 index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
6294
6295 return index;
6296}
6297
bb2d6cd7 6298/* Returns the first relocation of type r_type found, beginning with
23b255aa 6299 RELOCATION. RELEND is one-past-the-end of the relocation table. */
7403cb63 6300
23b255aa 6301static const Elf_Internal_Rela *
bb2d6cd7
GK
6302mips_elf_next_relocation (r_type, relocation, relend)
6303 unsigned int r_type;
103186c6
MM
6304 const Elf_Internal_Rela *relocation;
6305 const Elf_Internal_Rela *relend;
7403cb63
MM
6306{
6307 /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
6308 immediately following. However, for the IRIX6 ABI, the next
6309 relocation may be a composed relocation consisting of several
6310 relocations for the same address. In that case, the R_MIPS_LO16
435394bf 6311 relocation may occur as one of these. We permit a similar
7403cb63
MM
6312 extension in general, as that is useful for GCC. */
6313 while (relocation < relend)
6314 {
bb2d6cd7 6315 if (ELF32_R_TYPE (relocation->r_info) == r_type)
23b255aa 6316 return relocation;
7403cb63
MM
6317
6318 ++relocation;
6319 }
6320
6321 /* We didn't find it. */
6387d602 6322 bfd_set_error (bfd_error_bad_value);
23b255aa 6323 return NULL;
7403cb63
MM
6324}
6325
7b1f1231
MM
6326/* Create a rel.dyn relocation for the dynamic linker to resolve. REL
6327 is the original relocation, which is now being transformed into a
b305ef96 6328 dynamic relocation. The ADDENDP is adjusted if necessary; the
7b1f1231 6329 caller should store the result in place of the original addend. */
7403cb63 6330
7b1f1231
MM
6331static boolean
6332mips_elf_create_dynamic_relocation (output_bfd, info, rel, h, sec,
9117d219 6333 symbol, addendp, input_section)
7403cb63
MM
6334 bfd *output_bfd;
6335 struct bfd_link_info *info;
103186c6 6336 const Elf_Internal_Rela *rel;
7b1f1231
MM
6337 struct mips_elf_link_hash_entry *h;
6338 asection *sec;
6339 bfd_vma symbol;
6340 bfd_vma *addendp;
7403cb63
MM
6341 asection *input_section;
6342{
6343 Elf_Internal_Rel outrel;
6344 boolean skip;
6345 asection *sreloc;
6346 bfd *dynobj;
6347 int r_type;
6348
6349 r_type = ELF32_R_TYPE (rel->r_info);
6350 dynobj = elf_hash_table (info)->dynobj;
be3ccd9c 6351 sreloc
103186c6
MM
6352 = bfd_get_section_by_name (dynobj,
6353 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd));
7403cb63 6354 BFD_ASSERT (sreloc != NULL);
b305ef96 6355 BFD_ASSERT (sreloc->contents != NULL);
14d5043a
L
6356 BFD_ASSERT (sreloc->reloc_count * MIPS_ELF_REL_SIZE (output_bfd)
6357 < sreloc->_raw_size);
7403cb63
MM
6358
6359 skip = false;
c629eae0
JJ
6360 outrel.r_offset =
6361 _bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset);
6362 if (outrel.r_offset == (bfd_vma) -1)
6363 skip = true;
7403cb63 6364
b305ef96 6365 /* If we've decided to skip this relocation, just output an empty
7b1f1231
MM
6366 record. Note that R_MIPS_NONE == 0, so that this call to memset
6367 is a way of setting R_TYPE to R_MIPS_NONE. */
7403cb63
MM
6368 if (skip)
6369 memset (&outrel, 0, sizeof (outrel));
7b1f1231
MM
6370 else
6371 {
6372 long indx;
6373 bfd_vma section_offset;
6374
6375 /* We must now calculate the dynamic symbol table index to use
6376 in the relocation. */
6377 if (h != NULL
6378 && (! info->symbolic || (h->root.elf_link_hash_flags
6379 & ELF_LINK_HASH_DEF_REGULAR) == 0))
6380 {
6381 indx = h->root.dynindx;
b305ef96
UC
6382 /* h->root.dynindx may be -1 if this symbol was marked to
6383 become local. */
6384 if (indx == -1)
be3ccd9c 6385 indx = 0;
7b1f1231
MM
6386 }
6387 else
6388 {
6389 if (sec != NULL && bfd_is_abs_section (sec))
6390 indx = 0;
6391 else if (sec == NULL || sec->owner == NULL)
6392 {
6393 bfd_set_error (bfd_error_bad_value);
6394 return false;
6395 }
6396 else
6397 {
6398 indx = elf_section_data (sec->output_section)->dynindx;
6399 if (indx == 0)
6400 abort ();
6401 }
6402
6403 /* Figure out how far the target of the relocation is from
6404 the beginning of its section. */
6405 section_offset = symbol - sec->output_section->vma;
6406 /* The relocation we're building is section-relative.
6407 Therefore, the original addend must be adjusted by the
6408 section offset. */
9117d219 6409 *addendp += section_offset;
7b1f1231
MM
6410 /* Now, the relocation is just against the section. */
6411 symbol = sec->output_section->vma;
6412 }
be3ccd9c 6413
9117d219
NC
6414 /* If the relocation was previously an absolute relocation and
6415 this symbol will not be referred to by the relocation, we must
6416 adjust it by the value we give it in the dynamic symbol table.
6417 Otherwise leave the job up to the dynamic linker. */
6418 if (!indx && r_type != R_MIPS_REL32)
7b1f1231
MM
6419 *addendp += symbol;
6420
6421 /* The relocation is always an REL32 relocation because we don't
6422 know where the shared library will wind up at load-time. */
6423 outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32);
6424
6425 /* Adjust the output offset of the relocation to reference the
6426 correct location in the output file. */
6427 outrel.r_offset += (input_section->output_section->vma
6428 + input_section->output_offset);
6429 }
7403cb63 6430
7b1f1231
MM
6431 /* Put the relocation back out. We have to use the special
6432 relocation outputter in the 64-bit case since the 64-bit
6433 relocation format is non-standard. */
103186c6
MM
6434 if (ABI_64_P (output_bfd))
6435 {
6436 (*get_elf_backend_data (output_bfd)->s->swap_reloc_out)
6437 (output_bfd, &outrel,
be3ccd9c 6438 (sreloc->contents
103186c6
MM
6439 + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel)));
6440 }
6441 else
6442 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
6443 (((Elf32_External_Rel *)
6444 sreloc->contents)
6445 + sreloc->reloc_count));
7b1f1231
MM
6446
6447 /* Record the index of the first relocation referencing H. This
6448 information is later emitted in the .msym section. */
6449 if (h != NULL
be3ccd9c 6450 && (h->min_dyn_reloc_index == 0
7b1f1231
MM
6451 || sreloc->reloc_count < h->min_dyn_reloc_index))
6452 h->min_dyn_reloc_index = sreloc->reloc_count;
6453
6454 /* We've now added another relocation. */
7403cb63
MM
6455 ++sreloc->reloc_count;
6456
6457 /* Make sure the output section is writable. The dynamic linker
6458 will be writing to it. */
6459 elf_section_data (input_section->output_section)->this_hdr.sh_flags
6460 |= SHF_WRITE;
6461
6462 /* On IRIX5, make an entry of compact relocation info. */
6463 if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5)
6464 {
be3ccd9c 6465 asection *scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
7403cb63
MM
6466 bfd_byte *cr;
6467
6468 if (scpt)
6469 {
6470 Elf32_crinfo cptrel;
6471
6472 mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
6473 cptrel.vaddr = (rel->r_offset
6474 + input_section->output_section->vma
6475 + input_section->output_offset);
6476 if (r_type == R_MIPS_REL32)
6477 mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
252b5132 6478 else
7403cb63
MM
6479 mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
6480 mips_elf_set_cr_dist2to (cptrel, 0);
7b1f1231 6481 cptrel.konst = *addendp;
7403cb63
MM
6482
6483 cr = (scpt->contents
6484 + sizeof (Elf32_External_compact_rel));
6485 bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
6486 ((Elf32_External_crinfo *) cr
6487 + scpt->reloc_count));
6488 ++scpt->reloc_count;
6489 }
6490 }
252b5132 6491
7b1f1231 6492 return true;
7403cb63 6493}
252b5132 6494
7403cb63
MM
6495/* Calculate the value produced by the RELOCATION (which comes from
6496 the INPUT_BFD). The ADDEND is the addend to use for this
6497 RELOCATION; RELOCATION->R_ADDEND is ignored.
6498
6499 The result of the relocation calculation is stored in VALUEP.
197b9ca0
MM
6500 REQUIRE_JALXP indicates whether or not the opcode used with this
6501 relocation must be JALX.
7403cb63
MM
6502
6503 This function returns bfd_reloc_continue if the caller need take no
6504 further action regarding this relocation, bfd_reloc_notsupported if
6505 something goes dramatically wrong, bfd_reloc_overflow if an
6506 overflow occurs, and bfd_reloc_ok to indicate success. */
6507
6508static bfd_reloc_status_type
be3ccd9c 6509mips_elf_calculate_relocation (abfd,
7403cb63
MM
6510 input_bfd,
6511 input_section,
6512 info,
6513 relocation,
6514 addend,
6515 howto,
7403cb63
MM
6516 local_syms,
6517 local_sections,
6518 valuep,
197b9ca0 6519 namep,
be3ccd9c 6520 require_jalxp)
7403cb63
MM
6521 bfd *abfd;
6522 bfd *input_bfd;
6523 asection *input_section;
6524 struct bfd_link_info *info;
103186c6 6525 const Elf_Internal_Rela *relocation;
7403cb63
MM
6526 bfd_vma addend;
6527 reloc_howto_type *howto;
7403cb63
MM
6528 Elf_Internal_Sym *local_syms;
6529 asection **local_sections;
6530 bfd_vma *valuep;
6531 const char **namep;
197b9ca0 6532 boolean *require_jalxp;
7403cb63
MM
6533{
6534 /* The eventual value we will return. */
6535 bfd_vma value;
6536 /* The address of the symbol against which the relocation is
6537 occurring. */
6538 bfd_vma symbol = 0;
6539 /* The final GP value to be used for the relocatable, executable, or
6540 shared object file being produced. */
6541 bfd_vma gp = (bfd_vma) - 1;
6542 /* The place (section offset or address) of the storage unit being
6543 relocated. */
6544 bfd_vma p;
6545 /* The value of GP used to create the relocatable object. */
6546 bfd_vma gp0 = (bfd_vma) - 1;
6547 /* The offset into the global offset table at which the address of
6548 the relocation entry symbol, adjusted by the addend, resides
6549 during execution. */
6550 bfd_vma g = (bfd_vma) - 1;
6551 /* The section in which the symbol referenced by the relocation is
6552 located. */
6553 asection *sec = NULL;
be3ccd9c 6554 struct mips_elf_link_hash_entry *h = NULL;
103186c6
MM
6555 /* True if the symbol referred to by this relocation is a local
6556 symbol. */
7403cb63 6557 boolean local_p;
103186c6 6558 /* True if the symbol referred to by this relocation is "_gp_disp". */
7403cb63
MM
6559 boolean gp_disp_p = false;
6560 Elf_Internal_Shdr *symtab_hdr;
6561 size_t extsymoff;
103186c6 6562 unsigned long r_symndx;
7403cb63 6563 int r_type;
103186c6
MM
6564 /* True if overflow occurred during the calculation of the
6565 relocation value. */
7403cb63 6566 boolean overflowed_p;
197b9ca0
MM
6567 /* True if this relocation refers to a MIPS16 function. */
6568 boolean target_is_16_bit_code_p = false;
7403cb63
MM
6569
6570 /* Parse the relocation. */
6571 r_symndx = ELF32_R_SYM (relocation->r_info);
6572 r_type = ELF32_R_TYPE (relocation->r_info);
be3ccd9c 6573 p = (input_section->output_section->vma
7403cb63
MM
6574 + input_section->output_offset
6575 + relocation->r_offset);
6576
6577 /* Assume that there will be no overflow. */
6578 overflowed_p = false;
6579
6387d602
ILT
6580 /* Figure out whether or not the symbol is local, and get the offset
6581 used in the array of hash table entries. */
7403cb63 6582 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6387d602 6583 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
b305ef96 6584 local_sections, false);
6387d602
ILT
6585 if (! elf_bad_symtab (input_bfd))
6586 extsymoff = symtab_hdr->sh_info;
6587 else
7403cb63
MM
6588 {
6589 /* The symbol table does not follow the rule that local symbols
6590 must come before globals. */
6591 extsymoff = 0;
7403cb63 6592 }
be3ccd9c 6593
7403cb63
MM
6594 /* Figure out the value of the symbol. */
6595 if (local_p)
6596 {
6597 Elf_Internal_Sym *sym;
6598
6599 sym = local_syms + r_symndx;
6600 sec = local_sections[r_symndx];
6601
6602 symbol = sec->output_section->vma + sec->output_offset;
6603 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
6604 symbol += sym->st_value;
6605
6606 /* MIPS16 text labels should be treated as odd. */
6607 if (sym->st_other == STO_MIPS16)
6608 ++symbol;
6609
6610 /* Record the name of this symbol, for our caller. */
6611 *namep = bfd_elf_string_from_elf_section (input_bfd,
6612 symtab_hdr->sh_link,
6613 sym->st_name);
e049a0de 6614 if (*namep == '\0')
7403cb63 6615 *namep = bfd_section_name (input_bfd, sec);
197b9ca0
MM
6616
6617 target_is_16_bit_code_p = (sym->st_other == STO_MIPS16);
7403cb63
MM
6618 }
6619 else
6620 {
6621 /* For global symbols we look up the symbol in the hash-table. */
be3ccd9c 6622 h = ((struct mips_elf_link_hash_entry *)
7403cb63
MM
6623 elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
6624 /* Find the real hash-table entry for this symbol. */
b305ef96
UC
6625 while (h->root.root.type == bfd_link_hash_indirect
6626 || h->root.root.type == bfd_link_hash_warning)
7403cb63 6627 h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
be3ccd9c 6628
7403cb63
MM
6629 /* Record the name of this symbol, for our caller. */
6630 *namep = h->root.root.root.string;
6631
6632 /* See if this is the special _gp_disp symbol. Note that such a
6633 symbol must always be a global symbol. */
6634 if (strcmp (h->root.root.root.string, "_gp_disp") == 0)
6635 {
6636 /* Relocations against _gp_disp are permitted only with
6637 R_MIPS_HI16 and R_MIPS_LO16 relocations. */
6638 if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16)
6639 return bfd_reloc_notsupported;
6640
6641 gp_disp_p = true;
6642 }
97a4bb05
MM
6643 /* If this symbol is defined, calculate its address. Note that
6644 _gp_disp is a magic symbol, always implicitly defined by the
6645 linker, so it's inappropriate to check to see whether or not
6646 its defined. */
6647 else if ((h->root.root.type == bfd_link_hash_defined
6648 || h->root.root.type == bfd_link_hash_defweak)
6649 && h->root.root.u.def.section)
7403cb63
MM
6650 {
6651 sec = h->root.root.u.def.section;
6652 if (sec->output_section)
be3ccd9c 6653 symbol = (h->root.root.u.def.value
7403cb63
MM
6654 + sec->output_section->vma
6655 + sec->output_offset);
252b5132 6656 else
7403cb63
MM
6657 symbol = h->root.root.u.def.value;
6658 }
97287574
MM
6659 else if (h->root.root.type == bfd_link_hash_undefweak)
6660 /* We allow relocations against undefined weak symbols, giving
6661 it the value zero, so that you can undefined weak functions
6662 and check to see if they exist by looking at their
6663 addresses. */
6664 symbol = 0;
671bae9c
NC
6665 else if (info->shared
6666 && (!info->symbolic || info->allow_shlib_undefined)
6667 && !info->no_undefined
ba09750c 6668 && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
8535d39c 6669 symbol = 0;
f7cb7d68
UC
6670 else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0 ||
6671 strcmp (h->root.root.root.string, "_DYNAMIC_LINKING") == 0)
3811169e
MM
6672 {
6673 /* If this is a dynamic link, we should have created a
be3ccd9c 6674 _DYNAMIC_LINK symbol or _DYNAMIC_LINKING(for normal mips) symbol
f7cb7d68 6675 in in mips_elf_create_dynamic_sections.
3811169e
MM
6676 Otherwise, we should define the symbol with a value of 0.
6677 FIXME: It should probably get into the symbol table
6678 somehow as well. */
6679 BFD_ASSERT (! info->shared);
6680 BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
8535d39c 6681 symbol = 0;
3811169e 6682 }
7403cb63
MM
6683 else
6684 {
5cc7c785
L
6685 if (! ((*info->callbacks->undefined_symbol)
6686 (info, h->root.root.root.string, input_bfd,
6687 input_section, relocation->r_offset,
3a27a730 6688 (!info->shared || info->no_undefined
ba09750c 6689 || ELF_ST_VISIBILITY (h->root.other)))))
5cc7c785
L
6690 return bfd_reloc_undefined;
6691 symbol = 0;
7403cb63 6692 }
197b9ca0
MM
6693
6694 target_is_16_bit_code_p = (h->root.other == STO_MIPS16);
6695 }
be3ccd9c 6696
197b9ca0
MM
6697 /* If this is a 32-bit call to a 16-bit function with a stub, we
6698 need to redirect the call to the stub, unless we're already *in*
6699 a stub. */
6700 if (r_type != R_MIPS16_26 && !info->relocateable
6701 && ((h != NULL && h->fn_stub != NULL)
6702 || (local_p && elf_tdata (input_bfd)->local_stubs != NULL
6703 && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
6704 && !mips_elf_stub_section_p (input_bfd, input_section))
6705 {
6706 /* This is a 32-bit call to a 16-bit function. We should
6707 have already noticed that we were going to need the
6708 stub. */
6709 if (local_p)
6710 sec = elf_tdata (input_bfd)->local_stubs[r_symndx];
6711 else
6712 {
6713 BFD_ASSERT (h->need_fn_stub);
6714 sec = h->fn_stub;
6715 }
6716
6717 symbol = sec->output_section->vma + sec->output_offset;
7403cb63 6718 }
197b9ca0
MM
6719 /* If this is a 16-bit call to a 32-bit function with a stub, we
6720 need to redirect the call to the stub. */
6721 else if (r_type == R_MIPS16_26 && !info->relocateable
be3ccd9c 6722 && h != NULL
197b9ca0
MM
6723 && (h->call_stub != NULL || h->call_fp_stub != NULL)
6724 && !target_is_16_bit_code_p)
6725 {
6726 /* If both call_stub and call_fp_stub are defined, we can figure
6727 out which one to use by seeing which one appears in the input
6728 file. */
6729 if (h->call_stub != NULL && h->call_fp_stub != NULL)
6730 {
6731 asection *o;
6732
6733 sec = NULL;
6734 for (o = input_bfd->sections; o != NULL; o = o->next)
6735 {
6736 if (strncmp (bfd_get_section_name (input_bfd, o),
6737 CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
6738 {
6739 sec = h->call_fp_stub;
6740 break;
6741 }
6742 }
6743 if (sec == NULL)
6744 sec = h->call_stub;
6745 }
6746 else if (h->call_stub != NULL)
6747 sec = h->call_stub;
6748 else
6749 sec = h->call_fp_stub;
6750
6751 BFD_ASSERT (sec->_raw_size > 0);
6752 symbol = sec->output_section->vma + sec->output_offset;
6753 }
6754
6755 /* Calls from 16-bit code to 32-bit code and vice versa require the
6756 special jalx instruction. */
6387d602 6757 *require_jalxp = (!info->relocateable
55baa95b
EC
6758 && (((r_type == R_MIPS16_26) && !target_is_16_bit_code_p)
6759 || ((r_type == R_MIPS_26) && target_is_16_bit_code_p)));
252b5132 6760
b305ef96
UC
6761 local_p = mips_elf_local_relocation_p (input_bfd, relocation,
6762 local_sections, true);
6763
7403cb63
MM
6764 /* If we haven't already determined the GOT offset, or the GP value,
6765 and we're going to need it, get it now. */
6766 switch (r_type)
6767 {
6768 case R_MIPS_CALL16:
2841ecd0 6769 case R_MIPS_GOT16:
7403cb63
MM
6770 case R_MIPS_GOT_DISP:
6771 case R_MIPS_GOT_HI16:
6772 case R_MIPS_CALL_HI16:
6773 case R_MIPS_GOT_LO16:
6774 case R_MIPS_CALL_LO16:
6775 /* Find the index into the GOT where this value is located. */
4f2860ca 6776 if (!local_p)
7403cb63
MM
6777 {
6778 BFD_ASSERT (addend == 0);
be3ccd9c 6779 g = mips_elf_global_got_index
7403cb63 6780 (elf_hash_table (info)->dynobj,
be3ccd9c 6781 (struct elf_link_hash_entry *) h);
9a8f3bb7
UC
6782 if (! elf_hash_table(info)->dynamic_sections_created
6783 || (info->shared
6784 && (info->symbolic || h->root.dynindx == -1)
6785 && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
6786 {
6787 /* This is a static link or a -Bsymbolic link. The
6788 symbol is defined locally, or was forced to be local.
6789 We must initialize this entry in the GOT. */
6790 asection *sgot = mips_elf_got_section(elf_hash_table
6791 (info)->dynobj);
6792 MIPS_ELF_PUT_WORD (elf_hash_table (info)->dynobj,
6793 symbol + addend, sgot->contents + g);
6794 }
7403cb63 6795 }
9117d219 6796 else if (r_type == R_MIPS_GOT16 || r_type == R_MIPS_CALL16)
4f2860ca
MM
6797 /* There's no need to create a local GOT entry here; the
6798 calculation for a local GOT16 entry does not involve G. */
6799 break;
7403cb63
MM
6800 else
6801 {
6802 g = mips_elf_local_got_index (abfd, info, symbol + addend);
6803 if (g == (bfd_vma) -1)
caf8ca8e 6804 return bfd_reloc_outofrange;
7403cb63 6805 }
252b5132 6806
7403cb63
MM
6807 /* Convert GOT indices to actual offsets. */
6808 g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6809 abfd, g);
6810 break;
be3ccd9c 6811
7403cb63
MM
6812 case R_MIPS_HI16:
6813 case R_MIPS_LO16:
175e9962 6814 case R_MIPS16_GPREL:
7403cb63
MM
6815 case R_MIPS_GPREL16:
6816 case R_MIPS_GPREL32:
0af99795 6817 case R_MIPS_LITERAL:
7403cb63
MM
6818 gp0 = _bfd_get_gp_value (input_bfd);
6819 gp = _bfd_get_gp_value (abfd);
6820 break;
252b5132 6821
7403cb63
MM
6822 default:
6823 break;
6824 }
252b5132 6825
7403cb63
MM
6826 /* Figure out what kind of relocation is being performed. */
6827 switch (r_type)
6828 {
6829 case R_MIPS_NONE:
6830 return bfd_reloc_continue;
252b5132 6831
7403cb63
MM
6832 case R_MIPS_16:
6833 value = symbol + mips_elf_sign_extend (addend, 16);
6834 overflowed_p = mips_elf_overflow_p (value, 16);
6835 break;
252b5132 6836
7403cb63
MM
6837 case R_MIPS_32:
6838 case R_MIPS_REL32:
a3c7651d 6839 case R_MIPS_64:
7b1f1231
MM
6840 if ((info->shared
6841 || (elf_hash_table (info)->dynamic_sections_created
6842 && h != NULL
d918dd35
L
6843 && ((h->root.elf_link_hash_flags
6844 & ELF_LINK_HASH_DEF_DYNAMIC) != 0)
6845 && ((h->root.elf_link_hash_flags
6846 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
ec338859 6847 && r_symndx != 0
7b1f1231 6848 && (input_section->flags & SEC_ALLOC) != 0)
7403cb63 6849 {
7b1f1231
MM
6850 /* If we're creating a shared library, or this relocation is
6851 against a symbol in a shared library, then we can't know
6852 where the symbol will end up. So, we create a relocation
6853 record in the output, and leave the job up to the dynamic
6854 linker. */
6855 value = addend;
be3ccd9c
KH
6856 if (!mips_elf_create_dynamic_relocation (abfd,
6857 info,
7b1f1231
MM
6858 relocation,
6859 h,
6860 sec,
6861 symbol,
6862 &value,
9117d219 6863 input_section))
caf8ca8e 6864 return bfd_reloc_undefined;
7403cb63
MM
6865 }
6866 else
6867 {
a3c7651d 6868 if (r_type != R_MIPS_REL32)
7403cb63
MM
6869 value = symbol + addend;
6870 else
6871 value = addend;
6872 }
6873 value &= howto->dst_mask;
6874 break;
6875
bb2d6cd7
GK
6876 case R_MIPS_PC32:
6877 case R_MIPS_PC64:
6878 case R_MIPS_GNU_REL_LO16:
6879 value = symbol + addend - p;
6880 value &= howto->dst_mask;
6881 break;
6882
6883 case R_MIPS_GNU_REL16_S2:
6884 value = symbol + mips_elf_sign_extend (addend << 2, 18) - p;
6885 overflowed_p = mips_elf_overflow_p (value, 18);
6886 value = (value >> 2) & howto->dst_mask;
6887 break;
6888
6889 case R_MIPS_GNU_REL_HI16:
fcc76bea
CD
6890 /* Instead of subtracting 'p' here, we should be subtracting the
6891 equivalent value for the LO part of the reloc, since the value
6892 here is relative to that address. Because that's not easy to do,
6893 we adjust 'addend' in _bfd_mips_elf_relocate_section(). See also
6894 the comment there for more information. */
bb2d6cd7
GK
6895 value = mips_elf_high (addend + symbol - p);
6896 value &= howto->dst_mask;
6897 break;
6898
e53bd91b 6899 case R_MIPS16_26:
9117d219 6900 /* The calculation for R_MIPS16_26 is just the same as for an
e53bd91b 6901 R_MIPS_26. It's only the storage of the relocated field into
1e52e2ee 6902 the output file that's different. That's handled in
e53bd91b
MM
6903 mips_elf_perform_relocation. So, we just fall through to the
6904 R_MIPS_26 case here. */
7403cb63
MM
6905 case R_MIPS_26:
6906 if (local_p)
9117d219 6907 value = (((addend << 2) | ((p + 4) & 0xf0000000)) + symbol) >> 2;
7403cb63
MM
6908 else
6909 value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2;
6910 value &= howto->dst_mask;
6911 break;
6912
6913 case R_MIPS_HI16:
6914 if (!gp_disp_p)
6915 {
6916 value = mips_elf_high (addend + symbol);
6917 value &= howto->dst_mask;
6918 }
6919 else
6920 {
6921 value = mips_elf_high (addend + gp - p);
6922 overflowed_p = mips_elf_overflow_p (value, 16);
6923 }
6924 break;
6925
6926 case R_MIPS_LO16:
6927 if (!gp_disp_p)
6928 value = (symbol + addend) & howto->dst_mask;
6929 else
6930 {
6931 value = addend + gp - p + 4;
97a4bb05
MM
6932 /* The MIPS ABI requires checking the R_MIPS_LO16 relocation
6933 for overflow. But, on, say, Irix 5, relocations against
6934 _gp_disp are normally generated from the .cpload
6935 pseudo-op. It generates code that normally looks like
6936 this:
6937
6938 lui $gp,%hi(_gp_disp)
6939 addiu $gp,$gp,%lo(_gp_disp)
6940 addu $gp,$gp,$t9
6941
6942 Here $t9 holds the address of the function being called,
6943 as required by the MIPS ELF ABI. The R_MIPS_LO16
e53bd91b 6944 relocation can easily overflow in this situation, but the
97a4bb05
MM
6945 R_MIPS_HI16 relocation will handle the overflow.
6946 Therefore, we consider this a bug in the MIPS ABI, and do
6947 not check for overflow here. */
7403cb63
MM
6948 }
6949 break;
6950
6951 case R_MIPS_LITERAL:
6952 /* Because we don't merge literal sections, we can handle this
6953 just like R_MIPS_GPREL16. In the long run, we should merge
6954 shared literals, and then we will need to additional work
6955 here. */
6956
6957 /* Fall through. */
6958
b7233c24
MM
6959 case R_MIPS16_GPREL:
6960 /* The R_MIPS16_GPREL performs the same calculation as
6961 R_MIPS_GPREL16, but stores the relocated bits in a different
6962 order. We don't need to do anything special here; the
6963 differences are handled in mips_elf_perform_relocation. */
7403cb63
MM
6964 case R_MIPS_GPREL16:
6965 if (local_p)
6966 value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp;
6967 else
6968 value = mips_elf_sign_extend (addend, 16) + symbol - gp;
6969 overflowed_p = mips_elf_overflow_p (value, 16);
6970 break;
be3ccd9c 6971
7403cb63 6972 case R_MIPS_GOT16:
9117d219 6973 case R_MIPS_CALL16:
7403cb63
MM
6974 if (local_p)
6975 {
b305ef96 6976 boolean forced;
be3ccd9c 6977
b305ef96
UC
6978 /* The special case is when the symbol is forced to be local. We
6979 need the full address in the GOT since no R_MIPS_LO16 relocation
6980 follows. */
6981 forced = ! mips_elf_local_relocation_p (input_bfd, relocation,
6982 local_sections, false);
6983 value = mips_elf_got16_entry (abfd, info, symbol + addend, forced);
7403cb63 6984 if (value == (bfd_vma) -1)
caf8ca8e 6985 return bfd_reloc_outofrange;
be3ccd9c 6986 value
7403cb63
MM
6987 = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
6988 abfd,
6989 value);
6990 overflowed_p = mips_elf_overflow_p (value, 16);
6991 break;
6992 }
6993
6994 /* Fall through. */
6995
7403cb63
MM
6996 case R_MIPS_GOT_DISP:
6997 value = g;
6998 overflowed_p = mips_elf_overflow_p (value, 16);
6999 break;
7000
7001 case R_MIPS_GPREL32:
7002 value = (addend + symbol + gp0 - gp) & howto->dst_mask;
7003 break;
7004
7005 case R_MIPS_PC16:
7006 value = mips_elf_sign_extend (addend, 16) + symbol - p;
7007 overflowed_p = mips_elf_overflow_p (value, 16);
cb56d3d3 7008 value = (bfd_vma) ((bfd_signed_vma) value / 4);
7403cb63
MM
7009 break;
7010
7011 case R_MIPS_GOT_HI16:
7012 case R_MIPS_CALL_HI16:
7013 /* We're allowed to handle these two relocations identically.
7014 The dynamic linker is allowed to handle the CALL relocations
7015 differently by creating a lazy evaluation stub. */
7016 value = g;
7017 value = mips_elf_high (value);
7018 value &= howto->dst_mask;
7019 break;
7020
7021 case R_MIPS_GOT_LO16:
7022 case R_MIPS_CALL_LO16:
7023 value = g & howto->dst_mask;
7024 break;
7025
7403cb63
MM
7026 case R_MIPS_GOT_PAGE:
7027 value = mips_elf_got_page (abfd, info, symbol + addend, NULL);
7028 if (value == (bfd_vma) -1)
caf8ca8e 7029 return bfd_reloc_outofrange;
7403cb63
MM
7030 value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
7031 abfd,
7032 value);
7033 overflowed_p = mips_elf_overflow_p (value, 16);
7034 break;
be3ccd9c 7035
7403cb63
MM
7036 case R_MIPS_GOT_OFST:
7037 mips_elf_got_page (abfd, info, symbol + addend, &value);
7038 overflowed_p = mips_elf_overflow_p (value, 16);
7039 break;
7040
7041 case R_MIPS_SUB:
7042 value = symbol - addend;
7043 value &= howto->dst_mask;
7044 break;
7045
7046 case R_MIPS_HIGHER:
7047 value = mips_elf_higher (addend + symbol);
7048 value &= howto->dst_mask;
7049 break;
7050
7051 case R_MIPS_HIGHEST:
7052 value = mips_elf_highest (addend + symbol);
7053 value &= howto->dst_mask;
7054 break;
be3ccd9c 7055
7403cb63
MM
7056 case R_MIPS_SCN_DISP:
7057 value = symbol + addend - sec->output_offset;
7058 value &= howto->dst_mask;
7059 break;
7060
7061 case R_MIPS_PJUMP:
7062 case R_MIPS_JALR:
7063 /* Both of these may be ignored. R_MIPS_JALR is an optimization
7064 hint; we could improve performance by honoring that hint. */
7065 return bfd_reloc_continue;
7066
7067 case R_MIPS_GNU_VTINHERIT:
7068 case R_MIPS_GNU_VTENTRY:
7069 /* We don't do anything with these at present. */
7070 return bfd_reloc_continue;
7071
7403cb63
MM
7072 default:
7073 /* An unrecognized relocation type. */
7074 return bfd_reloc_notsupported;
7075 }
7076
7077 /* Store the VALUE for our caller. */
7078 *valuep = value;
7079 return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
7080}
7081
7082/* Obtain the field relocated by RELOCATION. */
7083
7084static bfd_vma
7085mips_elf_obtain_contents (howto, relocation, input_bfd, contents)
7086 reloc_howto_type *howto;
103186c6 7087 const Elf_Internal_Rela *relocation;
7403cb63
MM
7088 bfd *input_bfd;
7089 bfd_byte *contents;
7090{
7091 bfd_vma x;
7092 bfd_byte *location = contents + relocation->r_offset;
7093
b7233c24 7094 /* Obtain the bytes. */
1e738b87 7095 x = bfd_get (((bfd_vma)(8 * bfd_get_reloc_size (howto))), input_bfd, location);
7403cb63 7096
6296902e
MM
7097 if ((ELF32_R_TYPE (relocation->r_info) == R_MIPS16_26
7098 || ELF32_R_TYPE (relocation->r_info) == R_MIPS16_GPREL)
1e52e2ee
MM
7099 && bfd_little_endian (input_bfd))
7100 /* The two 16-bit words will be reversed on a little-endian
7101 system. See mips_elf_perform_relocation for more details. */
7102 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
7103
7403cb63
MM
7104 return x;
7105}
7106
7107/* It has been determined that the result of the RELOCATION is the
7108 VALUE. Use HOWTO to place VALUE into the output file at the
7109 appropriate position. The SECTION is the section to which the
197b9ca0
MM
7110 relocation applies. If REQUIRE_JALX is true, then the opcode used
7111 for the relocation must be either JAL or JALX, and it is
7112 unconditionally converted to JALX.
7403cb63
MM
7113
7114 Returns false if anything goes wrong. */
252b5132 7115
197b9ca0 7116static boolean
e53bd91b 7117mips_elf_perform_relocation (info, howto, relocation, value,
be3ccd9c 7118 input_bfd, input_section,
197b9ca0 7119 contents, require_jalx)
e53bd91b 7120 struct bfd_link_info *info;
7403cb63 7121 reloc_howto_type *howto;
103186c6 7122 const Elf_Internal_Rela *relocation;
7403cb63
MM
7123 bfd_vma value;
7124 bfd *input_bfd;
197b9ca0 7125 asection *input_section;
7403cb63 7126 bfd_byte *contents;
197b9ca0 7127 boolean require_jalx;
7403cb63
MM
7128{
7129 bfd_vma x;
e53bd91b 7130 bfd_byte *location;
197b9ca0 7131 int r_type = ELF32_R_TYPE (relocation->r_info);
e53bd91b
MM
7132
7133 /* Figure out where the relocation is occurring. */
7134 location = contents + relocation->r_offset;
252b5132 7135
7403cb63
MM
7136 /* Obtain the current value. */
7137 x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents);
252b5132 7138
7403cb63
MM
7139 /* Clear the field we are setting. */
7140 x &= ~howto->dst_mask;
252b5132 7141
e53bd91b
MM
7142 /* If this is the R_MIPS16_26 relocation, we must store the
7143 value in a funny way. */
197b9ca0 7144 if (r_type == R_MIPS16_26)
7403cb63 7145 {
e53bd91b
MM
7146 /* R_MIPS16_26 is used for the mips16 jal and jalx instructions.
7147 Most mips16 instructions are 16 bits, but these instructions
7148 are 32 bits.
7149
7150 The format of these instructions is:
7151
7152 +--------------+--------------------------------+
7153 ! JALX ! X! Imm 20:16 ! Imm 25:21 !
7154 +--------------+--------------------------------+
7155 ! Immediate 15:0 !
7156 +-----------------------------------------------+
be3ccd9c 7157
e53bd91b
MM
7158 JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx.
7159 Note that the immediate value in the first word is swapped.
7160
7161 When producing a relocateable object file, R_MIPS16_26 is
7162 handled mostly like R_MIPS_26. In particular, the addend is
7163 stored as a straight 26-bit value in a 32-bit instruction.
7164 (gas makes life simpler for itself by never adjusting a
7165 R_MIPS16_26 reloc to be against a section, so the addend is
7166 always zero). However, the 32 bit instruction is stored as 2
7167 16-bit values, rather than a single 32-bit value. In a
7168 big-endian file, the result is the same; in a little-endian
7169 file, the two 16-bit halves of the 32 bit value are swapped.
7170 This is so that a disassembler can recognize the jal
7171 instruction.
7172
7173 When doing a final link, R_MIPS16_26 is treated as a 32 bit
7174 instruction stored as two 16-bit values. The addend A is the
7175 contents of the targ26 field. The calculation is the same as
7176 R_MIPS_26. When storing the calculated value, reorder the
7177 immediate value as shown above, and don't forget to store the
7178 value as two 16-bit values.
7179
7180 To put it in MIPS ABI terms, the relocation field is T-targ26-16,
7181 defined as
be3ccd9c 7182
e53bd91b
MM
7183 big-endian:
7184 +--------+----------------------+
7185 | | |
7186 | | targ26-16 |
7187 |31 26|25 0|
7188 +--------+----------------------+
be3ccd9c 7189
e53bd91b
MM
7190 little-endian:
7191 +----------+------+-------------+
7192 | | | |
7193 | sub1 | | sub2 |
7194 |0 9|10 15|16 31|
7195 +----------+--------------------+
7196 where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is
7197 ((sub1 << 16) | sub2)).
be3ccd9c 7198
e53bd91b 7199 When producing a relocateable object file, the calculation is
9117d219 7200 (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
e53bd91b 7201 When producing a fully linked file, the calculation is
9117d219 7202 let R = (((A < 2) | ((P + 4) & 0xf0000000) + S) >> 2)
e53bd91b
MM
7203 ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */
7204
7205 if (!info->relocateable)
7206 /* Shuffle the bits according to the formula above. */
be3ccd9c
KH
7207 value = (((value & 0x1f0000) << 5)
7208 | ((value & 0x3e00000) >> 5)
e53bd91b 7209 | (value & 0xffff));
e53bd91b 7210 }
197b9ca0 7211 else if (r_type == R_MIPS16_GPREL)
b7233c24
MM
7212 {
7213 /* R_MIPS16_GPREL is used for GP-relative addressing in mips16
7214 mode. A typical instruction will have a format like this:
7215
7216 +--------------+--------------------------------+
7217 ! EXTEND ! Imm 10:5 ! Imm 15:11 !
7218 +--------------+--------------------------------+
7219 ! Major ! rx ! ry ! Imm 4:0 !
7220 +--------------+--------------------------------+
be3ccd9c 7221
b7233c24
MM
7222 EXTEND is the five bit value 11110. Major is the instruction
7223 opcode.
be3ccd9c 7224
b7233c24
MM
7225 This is handled exactly like R_MIPS_GPREL16, except that the
7226 addend is retrieved and stored as shown in this diagram; that
be3ccd9c 7227 is, the Imm fields above replace the V-rel16 field.
b7233c24 7228
6296902e
MM
7229 All we need to do here is shuffle the bits appropriately. As
7230 above, the two 16-bit halves must be swapped on a
7231 little-endian system. */
b7233c24
MM
7232 value = (((value & 0x7e0) << 16)
7233 | ((value & 0xf800) << 5)
7234 | (value & 0x1f));
7235 }
252b5132 7236
e53bd91b
MM
7237 /* Set the field. */
7238 x |= (value & howto->dst_mask);
252b5132 7239
197b9ca0
MM
7240 /* If required, turn JAL into JALX. */
7241 if (require_jalx)
7242 {
7243 boolean ok;
7244 bfd_vma opcode = x >> 26;
7245 bfd_vma jalx_opcode;
7246
7247 /* Check to see if the opcode is already JAL or JALX. */
7248 if (r_type == R_MIPS16_26)
7249 {
7250 ok = ((opcode == 0x6) || (opcode == 0x7));
7251 jalx_opcode = 0x7;
7252 }
7253 else
7254 {
7255 ok = ((opcode == 0x3) || (opcode == 0x1d));
7256 jalx_opcode = 0x1d;
7257 }
7258
7259 /* If the opcode is not JAL or JALX, there's a problem. */
7260 if (!ok)
7261 {
7262 (*_bfd_error_handler)
7263 (_("%s: %s+0x%lx: jump to stub routine which is not jal"),
8f615d07 7264 bfd_archive_filename (input_bfd),
197b9ca0
MM
7265 input_section->name,
7266 (unsigned long) relocation->r_offset);
7267 bfd_set_error (bfd_error_bad_value);
7268 return false;
7269 }
7270
7271 /* Make this the JALX opcode. */
7272 x = (x & ~(0x3f << 26)) | (jalx_opcode << 26);
7273 }
7274
6296902e
MM
7275 /* Swap the high- and low-order 16 bits on little-endian systems
7276 when doing a MIPS16 relocation. */
197b9ca0 7277 if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26)
6296902e
MM
7278 && bfd_little_endian (input_bfd))
7279 x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
be3ccd9c 7280
e53bd91b
MM
7281 /* Put the value into the output. */
7282 bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
197b9ca0
MM
7283 return true;
7284}
7285
7286/* Returns true if SECTION is a MIPS16 stub section. */
7287
7288static boolean
7289mips_elf_stub_section_p (abfd, section)
6387d602 7290 bfd *abfd ATTRIBUTE_UNUSED;
197b9ca0
MM
7291 asection *section;
7292{
7293 const char *name = bfd_get_section_name (abfd, section);
7294
7295 return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0
7296 || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
7297 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0);
7403cb63 7298}
252b5132 7299
7403cb63 7300/* Relocate a MIPS ELF section. */
252b5132 7301
103186c6
MM
7302boolean
7303_bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
7304 contents, relocs, local_syms, local_sections)
7403cb63
MM
7305 bfd *output_bfd;
7306 struct bfd_link_info *info;
7307 bfd *input_bfd;
7308 asection *input_section;
7309 bfd_byte *contents;
7310 Elf_Internal_Rela *relocs;
7311 Elf_Internal_Sym *local_syms;
7312 asection **local_sections;
7313{
31367b81 7314 Elf_Internal_Rela *rel;
103186c6 7315 const Elf_Internal_Rela *relend;
86033394 7316 bfd_vma addend = 0;
7403cb63 7317 boolean use_saved_addend_p = false;
103186c6 7318 struct elf_backend_data *bed;
252b5132 7319
103186c6
MM
7320 bed = get_elf_backend_data (output_bfd);
7321 relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
7403cb63
MM
7322 for (rel = relocs; rel < relend; ++rel)
7323 {
7324 const char *name;
7325 bfd_vma value;
7403cb63 7326 reloc_howto_type *howto;
197b9ca0 7327 boolean require_jalx;
31367b81
MM
7328 /* True if the relocation is a RELA relocation, rather than a
7329 REL relocation. */
7330 boolean rela_relocation_p = true;
dc810e39 7331 unsigned int r_type = ELF32_R_TYPE (rel->r_info);
7a65545d 7332 const char * msg = (const char *) NULL;
252b5132 7333
7403cb63 7334 /* Find the relocation howto for this relocation. */
31367b81 7335 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
0af99795
GK
7336 {
7337 /* Some 32-bit code uses R_MIPS_64. In particular, people use
be3ccd9c 7338 64-bit code, but make sure all their addresses are in the
0af99795
GK
7339 lowermost or uppermost 32-bit section of the 64-bit address
7340 space. Thus, when they use an R_MIPS_64 they mean what is
7341 usually meant by R_MIPS_32, with the exception that the
7342 stored value is sign-extended to 64 bits. */
d75bc93d 7343 howto = elf_mips_howto_table_rel + R_MIPS_32;
0af99795
GK
7344
7345 /* On big-endian systems, we need to lie about the position
7346 of the reloc. */
7347 if (bfd_big_endian (input_bfd))
be3ccd9c 7348 rel->r_offset += 4;
0af99795 7349 }
a3c7651d 7350 else
c9b3cbf3 7351 howto = mips_rtype_to_howto (r_type);
252b5132 7352
7403cb63
MM
7353 if (!use_saved_addend_p)
7354 {
7355 Elf_Internal_Shdr *rel_hdr;
7356
7357 /* If these relocations were originally of the REL variety,
7358 we must pull the addend out of the field that will be
7359 relocated. Otherwise, we simply use the contents of the
7360 RELA relocation. To determine which flavor or relocation
7361 this is, we depend on the fact that the INPUT_SECTION's
7362 REL_HDR is read before its REL_HDR2. */
7363 rel_hdr = &elf_section_data (input_section)->rel_hdr;
5f771d47 7364 if ((size_t) (rel - relocs)
d9bc7a44 7365 >= (NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel))
7403cb63 7366 rel_hdr = elf_section_data (input_section)->rel_hdr2;
103186c6 7367 if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd))
7403cb63 7368 {
31367b81
MM
7369 /* Note that this is a REL relocation. */
7370 rela_relocation_p = false;
7403cb63 7371
31367b81 7372 /* Get the addend, which is stored in the input file. */
be3ccd9c 7373 addend = mips_elf_obtain_contents (howto,
7403cb63
MM
7374 rel,
7375 input_bfd,
7376 contents);
7377 addend &= howto->src_mask;
7378
7379 /* For some kinds of relocations, the ADDEND is a
7380 combination of the addend stored in two different
7381 relocations. */
6387d602 7382 if (r_type == R_MIPS_HI16
bb2d6cd7 7383 || r_type == R_MIPS_GNU_REL_HI16
6387d602
ILT
7384 || (r_type == R_MIPS_GOT16
7385 && mips_elf_local_relocation_p (input_bfd, rel,
b305ef96 7386 local_sections, false)))
252b5132 7387 {
23b255aa
MM
7388 bfd_vma l;
7389 const Elf_Internal_Rela *lo16_relocation;
7390 reloc_howto_type *lo16_howto;
dc810e39 7391 unsigned int lo;
23b255aa 7392
e7c44218
MM
7393 /* The combined value is the sum of the HI16 addend,
7394 left-shifted by sixteen bits, and the LO16
7395 addend, sign extended. (Usually, the code does
7396 a `lui' of the HI16 value, and then an `addiu' of
be3ccd9c 7397 the LO16 value.)
e7c44218 7398
bb2d6cd7
GK
7399 Scan ahead to find a matching LO16 relocation. */
7400 if (r_type == R_MIPS_GNU_REL_HI16)
7401 lo = R_MIPS_GNU_REL_LO16;
7402 else
7403 lo = R_MIPS_LO16;
be3ccd9c
KH
7404 lo16_relocation
7405 = mips_elf_next_relocation (lo, rel, relend);
23b255aa 7406 if (lo16_relocation == NULL)
7403cb63 7407 return false;
252b5132 7408
23b255aa 7409 /* Obtain the addend kept there. */
bb2d6cd7 7410 lo16_howto = mips_rtype_to_howto (lo);
23b255aa
MM
7411 l = mips_elf_obtain_contents (lo16_howto,
7412 lo16_relocation,
7413 input_bfd, contents);
7414 l &= lo16_howto->src_mask;
e7c44218 7415 l = mips_elf_sign_extend (l, 16);
23b255aa 7416
7403cb63 7417 addend <<= 16;
252b5132 7418
7403cb63 7419 /* Compute the combined addend. */
e7c44218 7420 addend += l;
fcc76bea
CD
7421
7422 /* If PC-relative, subtract the difference between the
7423 address of the LO part of the reloc and the address of
7424 the HI part. The relocation is relative to the LO
7425 part, but mips_elf_calculate_relocation() doesn't know
7426 it address or the difference from the HI part, so
7427 we subtract that difference here. See also the
7428 comment in mips_elf_calculate_relocation(). */
7429 if (r_type == R_MIPS_GNU_REL_HI16)
7430 addend -= (lo16_relocation->r_offset - rel->r_offset);
252b5132 7431 }
b7233c24
MM
7432 else if (r_type == R_MIPS16_GPREL)
7433 {
7434 /* The addend is scrambled in the object file. See
7435 mips_elf_perform_relocation for details on the
7436 format. */
7437 addend = (((addend & 0x1f0000) >> 5)
7438 | ((addend & 0x7e00000) >> 16)
7439 | (addend & 0x1f));
7440 }
252b5132
RH
7441 }
7442 else
7403cb63
MM
7443 addend = rel->r_addend;
7444 }
252b5132 7445
31367b81
MM
7446 if (info->relocateable)
7447 {
7448 Elf_Internal_Sym *sym;
7449 unsigned long r_symndx;
7450
7893e6a2
GK
7451 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)
7452 && bfd_big_endian (input_bfd))
7453 rel->r_offset -= 4;
7454
31367b81 7455 /* Since we're just relocating, all we need to do is copy
0db63c18
MM
7456 the relocations back out to the object file, unless
7457 they're against a section symbol, in which case we need
7458 to adjust by the section offset, or unless they're GP
7459 relative in which case we need to adjust by the amount
7460 that we're adjusting GP in this relocateable object. */
31367b81 7461
b305ef96
UC
7462 if (!mips_elf_local_relocation_p (input_bfd, rel, local_sections,
7463 false))
f1a5f37e 7464 /* There's nothing to do for non-local relocations. */
31367b81
MM
7465 continue;
7466
be3ccd9c 7467 if (r_type == R_MIPS16_GPREL
0db63c18 7468 || r_type == R_MIPS_GPREL16
0af99795
GK
7469 || r_type == R_MIPS_GPREL32
7470 || r_type == R_MIPS_LITERAL)
0db63c18
MM
7471 addend -= (_bfd_get_gp_value (output_bfd)
7472 - _bfd_get_gp_value (input_bfd));
bb2d6cd7
GK
7473 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7474 || r_type == R_MIPS_GNU_REL16_S2)
e7c44218
MM
7475 /* The addend is stored without its two least
7476 significant bits (which are always zero.) In a
7477 non-relocateable link, calculate_relocation will do
7478 this shift; here, we must do it ourselves. */
7479 addend <<= 2;
31367b81 7480
4f2860ca
MM
7481 r_symndx = ELF32_R_SYM (rel->r_info);
7482 sym = local_syms + r_symndx;
7483 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
7484 /* Adjust the addend appropriately. */
7485 addend += local_sections[r_symndx]->output_offset;
be3ccd9c 7486
f1a5f37e
MM
7487 /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16,
7488 then we only want to write out the high-order 16 bits.
7489 The subsequent R_MIPS_LO16 will handle the low-order bits. */
bb2d6cd7
GK
7490 if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16
7491 || r_type == R_MIPS_GNU_REL_HI16)
23b255aa 7492 addend = mips_elf_high (addend);
5a44662b
MM
7493 /* If the relocation is for an R_MIPS_26 relocation, then
7494 the two low-order bits are not stored in the object file;
7495 they are implicitly zero. */
bb2d6cd7
GK
7496 else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26
7497 || r_type == R_MIPS_GNU_REL16_S2)
5a44662b 7498 addend >>= 2;
f1a5f37e 7499
31367b81
MM
7500 if (rela_relocation_p)
7501 /* If this is a RELA relocation, just update the addend.
bb2d6cd7 7502 We have to cast away constness for REL. */
31367b81
MM
7503 rel->r_addend = addend;
7504 else
7505 {
7506 /* Otherwise, we have to write the value back out. Note
7507 that we use the source mask, rather than the
7508 destination mask because the place to which we are
7509 writing will be source of the addend in the final
7510 link. */
7511 addend &= howto->src_mask;
7893e6a2
GK
7512
7513 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
7514 /* See the comment above about using R_MIPS_64 in the 32-bit
7515 ABI. Here, we need to update the addend. It would be
7516 possible to get away with just using the R_MIPS_32 reloc
7517 but for endianness. */
7518 {
7519 bfd_vma sign_bits;
7520 bfd_vma low_bits;
7521 bfd_vma high_bits;
be3ccd9c 7522
fc633e5b 7523 if (addend & ((bfd_vma) 1 << 31))
1e738b87 7524#ifdef BFD64
fc633e5b 7525 sign_bits = ((bfd_vma) 1 << 32) - 1;
1e738b87
NC
7526#else
7527 sign_bits = -1;
7528#endif
7893e6a2
GK
7529 else
7530 sign_bits = 0;
be3ccd9c 7531
7893e6a2
GK
7532 /* If we don't know that we have a 64-bit type,
7533 do two separate stores. */
7534 if (bfd_big_endian (input_bfd))
7535 {
7536 /* Store the sign-bits (which are most significant)
7537 first. */
7538 low_bits = sign_bits;
7539 high_bits = addend;
7540 }
7541 else
7542 {
7543 low_bits = addend;
7544 high_bits = sign_bits;
7545 }
be3ccd9c 7546 bfd_put_32 (input_bfd, low_bits,
7893e6a2 7547 contents + rel->r_offset);
be3ccd9c 7548 bfd_put_32 (input_bfd, high_bits,
7893e6a2
GK
7549 contents + rel->r_offset + 4);
7550 continue;
7551 }
7552
31367b81 7553 if (!mips_elf_perform_relocation (info, howto, rel, addend,
a17aee54 7554 input_bfd, input_section,
31367b81
MM
7555 contents, false))
7556 return false;
7557 }
7558
7559 /* Go on to the next relocation. */
7560 continue;
7561 }
7562
7403cb63
MM
7563 /* In the N32 and 64-bit ABIs there may be multiple consecutive
7564 relocations for the same offset. In that case we are
7565 supposed to treat the output of each relocation as the addend
7566 for the next. */
be3ccd9c 7567 if (rel + 1 < relend
103186c6 7568 && rel->r_offset == rel[1].r_offset
b89db8f2 7569 && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
7403cb63
MM
7570 use_saved_addend_p = true;
7571 else
7572 use_saved_addend_p = false;
7573
7574 /* Figure out what value we are supposed to relocate. */
be3ccd9c 7575 switch (mips_elf_calculate_relocation (output_bfd,
7403cb63
MM
7576 input_bfd,
7577 input_section,
7578 info,
7579 rel,
7580 addend,
7581 howto,
7403cb63
MM
7582 local_syms,
7583 local_sections,
7584 &value,
197b9ca0
MM
7585 &name,
7586 &require_jalx))
7403cb63
MM
7587 {
7588 case bfd_reloc_continue:
7589 /* There's nothing to do. */
7590 continue;
252b5132 7591
7403cb63 7592 case bfd_reloc_undefined:
6387d602 7593 /* mips_elf_calculate_relocation already called the
bb2d6cd7 7594 undefined_symbol callback. There's no real point in
97287574
MM
7595 trying to perform the relocation at this point, so we
7596 just skip ahead to the next relocation. */
7597 continue;
252b5132 7598
7403cb63 7599 case bfd_reloc_notsupported:
7a65545d
DN
7600 msg = _("internal error: unsupported relocation error");
7601 info->callbacks->warning
7602 (info, msg, name, input_bfd, input_section, rel->r_offset);
7603 return false;
252b5132 7604
7403cb63
MM
7605 case bfd_reloc_overflow:
7606 if (use_saved_addend_p)
7607 /* Ignore overflow until we reach the last relocation for
7608 a given location. */
7609 ;
6387d602
ILT
7610 else
7611 {
7612 BFD_ASSERT (name != NULL);
7613 if (! ((*info->callbacks->reloc_overflow)
7614 (info, name, howto->name, (bfd_vma) 0,
7615 input_bfd, input_section, rel->r_offset)))
7616 return false;
7617 }
7403cb63 7618 break;
252b5132 7619
7403cb63
MM
7620 case bfd_reloc_ok:
7621 break;
7622
7623 default:
7624 abort ();
7625 break;
252b5132
RH
7626 }
7627
7403cb63
MM
7628 /* If we've got another relocation for the address, keep going
7629 until we reach the last one. */
7630 if (use_saved_addend_p)
252b5132 7631 {
7403cb63
MM
7632 addend = value;
7633 continue;
252b5132 7634 }
7403cb63 7635
31367b81 7636 if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
a3c7651d
MM
7637 /* See the comment above about using R_MIPS_64 in the 32-bit
7638 ABI. Until now, we've been using the HOWTO for R_MIPS_32;
7639 that calculated the right value. Now, however, we
7640 sign-extend the 32-bit result to 64-bits, and store it as a
7641 64-bit value. We are especially generous here in that we
7642 go to extreme lengths to support this usage on systems with
7643 only a 32-bit VMA. */
7644 {
a3c7651d
MM
7645 bfd_vma sign_bits;
7646 bfd_vma low_bits;
7647 bfd_vma high_bits;
7648
fc633e5b 7649 if (value & ((bfd_vma) 1 << 31))
1e738b87 7650#ifdef BFD64
fc633e5b 7651 sign_bits = ((bfd_vma) 1 << 32) - 1;
1e738b87
NC
7652#else
7653 sign_bits = -1;
7654#endif
a3c7651d
MM
7655 else
7656 sign_bits = 0;
7657
7893e6a2
GK
7658 /* If we don't know that we have a 64-bit type,
7659 do two separate stores. */
a3c7651d
MM
7660 if (bfd_big_endian (input_bfd))
7661 {
0af99795
GK
7662 /* Undo what we did above. */
7663 rel->r_offset -= 4;
a3c7651d
MM
7664 /* Store the sign-bits (which are most significant)
7665 first. */
7666 low_bits = sign_bits;
7667 high_bits = value;
7668 }
7669 else
7670 {
7671 low_bits = value;
7672 high_bits = sign_bits;
7673 }
be3ccd9c 7674 bfd_put_32 (input_bfd, low_bits,
a3c7651d 7675 contents + rel->r_offset);
be3ccd9c 7676 bfd_put_32 (input_bfd, high_bits,
a3c7651d
MM
7677 contents + rel->r_offset + 4);
7678 continue;
a3c7651d
MM
7679 }
7680
7403cb63 7681 /* Actually perform the relocation. */
be3ccd9c 7682 if (!mips_elf_perform_relocation (info, howto, rel, value, input_bfd,
197b9ca0
MM
7683 input_section, contents,
7684 require_jalx))
7685 return false;
252b5132
RH
7686 }
7687
7688 return true;
7689}
7690
7691/* This hook function is called before the linker writes out a global
7692 symbol. We mark symbols as small common if appropriate. This is
7693 also where we undo the increment of the value for a mips16 symbol. */
7694
103186c6
MM
7695boolean
7696_bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
5f771d47
ILT
7697 bfd *abfd ATTRIBUTE_UNUSED;
7698 struct bfd_link_info *info ATTRIBUTE_UNUSED;
7699 const char *name ATTRIBUTE_UNUSED;
252b5132
RH
7700 Elf_Internal_Sym *sym;
7701 asection *input_sec;
7702{
7703 /* If we see a common symbol, which implies a relocatable link, then
7704 if a symbol was small common in an input file, mark it as small
7705 common in the output file. */
7706 if (sym->st_shndx == SHN_COMMON
7707 && strcmp (input_sec->name, ".scommon") == 0)
7708 sym->st_shndx = SHN_MIPS_SCOMMON;
7709
7710 if (sym->st_other == STO_MIPS16
7711 && (sym->st_value & 1) != 0)
7712 --sym->st_value;
7713
7714 return true;
7715}
7716\f
7717/* Functions for the dynamic linker. */
7718
7719/* The name of the dynamic interpreter. This is put in the .interp
7720 section. */
7721
103186c6
MM
7722#define ELF_DYNAMIC_INTERPRETER(abfd) \
7723 (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
7724 : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
7725 : "/usr/lib/libc.so.1")
252b5132
RH
7726
7727/* Create dynamic sections when linking against a dynamic object. */
7728
103186c6
MM
7729boolean
7730_bfd_mips_elf_create_dynamic_sections (abfd, info)
252b5132
RH
7731 bfd *abfd;
7732 struct bfd_link_info *info;
7733{
7734 struct elf_link_hash_entry *h;
7735 flagword flags;
7736 register asection *s;
7737 const char * const *namep;
7738
7739 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7740 | SEC_LINKER_CREATED | SEC_READONLY);
7741
7742 /* Mips ABI requests the .dynamic section to be read only. */
7743 s = bfd_get_section_by_name (abfd, ".dynamic");
7744 if (s != NULL)
7745 {
7746 if (! bfd_set_section_flags (abfd, s, flags))
7747 return false;
7748 }
7749
7750 /* We need to create .got section. */
7751 if (! mips_elf_create_got_section (abfd, info))
7752 return false;
7753
c6142e5d
MM
7754 /* Create the .msym section on IRIX6. It is used by the dynamic
7755 linker to speed up dynamic relocations, and to avoid computing
7756 the ELF hash for symbols. */
7757 if (IRIX_COMPAT (abfd) == ict_irix6
7758 && !mips_elf_create_msym_section (abfd))
7759 return false;
be3ccd9c 7760
252b5132 7761 /* Create .stub section. */
be3ccd9c 7762 if (bfd_get_section_by_name (abfd,
7403cb63 7763 MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL)
252b5132 7764 {
7403cb63 7765 s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd));
252b5132 7766 if (s == NULL
7403cb63 7767 || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
103186c6
MM
7768 || ! bfd_set_section_alignment (abfd, s,
7769 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7770 return false;
7771 }
7772
31a9bdd9 7773 if ((IRIX_COMPAT (abfd) == ict_irix5 || IRIX_COMPAT (abfd) == ict_none)
252b5132
RH
7774 && !info->shared
7775 && bfd_get_section_by_name (abfd, ".rld_map") == NULL)
7776 {
7777 s = bfd_make_section (abfd, ".rld_map");
7778 if (s == NULL
dc810e39 7779 || ! bfd_set_section_flags (abfd, s, flags &~ (flagword) SEC_READONLY)
103186c6
MM
7780 || ! bfd_set_section_alignment (abfd, s,
7781 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7782 return false;
7783 }
7784
303f629d
MM
7785 /* On IRIX5, we adjust add some additional symbols and change the
7786 alignments of several sections. There is no ABI documentation
7787 indicating that this is necessary on IRIX6, nor any evidence that
7788 the linker takes such action. */
7789 if (IRIX_COMPAT (abfd) == ict_irix5)
252b5132
RH
7790 {
7791 for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++)
7792 {
7793 h = NULL;
7794 if (! (_bfd_generic_link_add_one_symbol
7795 (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr,
7796 (bfd_vma) 0, (const char *) NULL, false,
7797 get_elf_backend_data (abfd)->collect,
7798 (struct bfd_link_hash_entry **) &h)))
7799 return false;
be3ccd9c 7800 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7801 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7802 h->type = STT_SECTION;
7803
7804 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7805 return false;
7806 }
7807
7808 /* We need to create a .compact_rel section. */
f7cb7d68 7809 if (SGI_COMPAT (abfd))
be3ccd9c
KH
7810 {
7811 if (!mips_elf_create_compact_rel_section (abfd, info))
f7cb7d68 7812 return false;
be3ccd9c 7813 }
252b5132
RH
7814
7815 /* Change aligments of some sections. */
7816 s = bfd_get_section_by_name (abfd, ".hash");
7817 if (s != NULL)
7818 bfd_set_section_alignment (abfd, s, 4);
7819 s = bfd_get_section_by_name (abfd, ".dynsym");
7820 if (s != NULL)
7821 bfd_set_section_alignment (abfd, s, 4);
7822 s = bfd_get_section_by_name (abfd, ".dynstr");
7823 if (s != NULL)
7824 bfd_set_section_alignment (abfd, s, 4);
7825 s = bfd_get_section_by_name (abfd, ".reginfo");
7826 if (s != NULL)
7827 bfd_set_section_alignment (abfd, s, 4);
7828 s = bfd_get_section_by_name (abfd, ".dynamic");
7829 if (s != NULL)
7830 bfd_set_section_alignment (abfd, s, 4);
7831 }
7832
7833 if (!info->shared)
7834 {
7835 h = NULL;
f7cb7d68 7836 if (SGI_COMPAT (abfd))
be3ccd9c
KH
7837 {
7838 if (!(_bfd_generic_link_add_one_symbol
7839 (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr,
7840 (bfd_vma) 0, (const char *) NULL, false,
7841 get_elf_backend_data (abfd)->collect,
7842 (struct bfd_link_hash_entry **) &h)))
f7cb7d68 7843 return false;
be3ccd9c 7844 }
f7cb7d68 7845 else
be3ccd9c
KH
7846 {
7847 /* For normal mips it is _DYNAMIC_LINKING. */
7848 if (!(_bfd_generic_link_add_one_symbol
7849 (info, abfd, "_DYNAMIC_LINKING", BSF_GLOBAL,
7850 bfd_abs_section_ptr, (bfd_vma) 0, (const char *) NULL, false,
7851 get_elf_backend_data (abfd)->collect,
7852 (struct bfd_link_hash_entry **) &h)))
7853 return false;
7854 }
7855 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7856 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7857 h->type = STT_SECTION;
7858
7859 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7860 return false;
7861
7862 if (! mips_elf_hash_table (info)->use_rld_obj_head)
7863 {
7864 /* __rld_map is a four byte word located in the .data section
7865 and is filled in by the rtld to contain a pointer to
7866 the _r_debug structure. Its symbol value will be set in
7867 mips_elf_finish_dynamic_symbol. */
7868 s = bfd_get_section_by_name (abfd, ".rld_map");
7869 BFD_ASSERT (s != NULL);
7870
7871 h = NULL;
be3ccd9c
KH
7872 if (SGI_COMPAT (abfd))
7873 {
7874 if (!(_bfd_generic_link_add_one_symbol
7875 (info, abfd, "__rld_map", BSF_GLOBAL, s,
7876 (bfd_vma) 0, (const char *) NULL, false,
7877 get_elf_backend_data (abfd)->collect,
7878 (struct bfd_link_hash_entry **) &h)))
7879 return false;
7880 }
7881 else
7882 {
7883 /* For normal mips the symbol is __RLD_MAP. */
7884 if (!(_bfd_generic_link_add_one_symbol
7885 (info, abfd, "__RLD_MAP", BSF_GLOBAL, s,
7886 (bfd_vma) 0, (const char *) NULL, false,
7887 get_elf_backend_data (abfd)->collect,
7888 (struct bfd_link_hash_entry **) &h)))
7889 return false;
7890 }
7891 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7892 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7893 h->type = STT_OBJECT;
7894
7895 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
7896 return false;
7897 }
7898 }
7899
7900 return true;
7901}
7902
7903/* Create the .compact_rel section. */
7904
7905static boolean
7906mips_elf_create_compact_rel_section (abfd, info)
7907 bfd *abfd;
5f771d47 7908 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH
7909{
7910 flagword flags;
7911 register asection *s;
7912
7913 if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL)
7914 {
7915 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED
7916 | SEC_READONLY);
7917
7918 s = bfd_make_section (abfd, ".compact_rel");
7919 if (s == NULL
7920 || ! bfd_set_section_flags (abfd, s, flags)
103186c6
MM
7921 || ! bfd_set_section_alignment (abfd, s,
7922 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
252b5132
RH
7923 return false;
7924
7925 s->_raw_size = sizeof (Elf32_External_compact_rel);
7926 }
7927
7928 return true;
7929}
7930
be3ccd9c 7931/* Create the .got section to hold the global offset table. */
252b5132
RH
7932
7933static boolean
7934mips_elf_create_got_section (abfd, info)
7935 bfd *abfd;
7936 struct bfd_link_info *info;
7937{
7938 flagword flags;
7939 register asection *s;
7940 struct elf_link_hash_entry *h;
7941 struct mips_got_info *g;
dc810e39 7942 bfd_size_type amt;
252b5132
RH
7943
7944 /* This function may be called more than once. */
103186c6 7945 if (mips_elf_got_section (abfd))
252b5132
RH
7946 return true;
7947
7948 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
7949 | SEC_LINKER_CREATED);
7950
7951 s = bfd_make_section (abfd, ".got");
7952 if (s == NULL
7953 || ! bfd_set_section_flags (abfd, s, flags)
7954 || ! bfd_set_section_alignment (abfd, s, 4))
7955 return false;
7956
7957 /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
7958 linker script because we don't want to define the symbol if we
7959 are not creating a global offset table. */
7960 h = NULL;
7961 if (! (_bfd_generic_link_add_one_symbol
7962 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
7963 (bfd_vma) 0, (const char *) NULL, false,
7964 get_elf_backend_data (abfd)->collect,
7965 (struct bfd_link_hash_entry **) &h)))
7966 return false;
be3ccd9c 7967 h->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
252b5132
RH
7968 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
7969 h->type = STT_OBJECT;
7970
7971 if (info->shared
7972 && ! bfd_elf32_link_record_dynamic_symbol (info, h))
7973 return false;
7974
7975 /* The first several global offset table entries are reserved. */
103186c6 7976 s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd);
252b5132 7977
dc810e39
AM
7978 amt = sizeof (struct mips_got_info);
7979 g = (struct mips_got_info *) bfd_alloc (abfd, amt);
252b5132
RH
7980 if (g == NULL)
7981 return false;
7403cb63 7982 g->global_gotsym = NULL;
252b5132
RH
7983 g->local_gotno = MIPS_RESERVED_GOTNO;
7984 g->assigned_gotno = MIPS_RESERVED_GOTNO;
7985 if (elf_section_data (s) == NULL)
7986 {
dc810e39
AM
7987 amt = sizeof (struct bfd_elf_section_data);
7988 s->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
252b5132
RH
7989 if (elf_section_data (s) == NULL)
7990 return false;
7991 }
7992 elf_section_data (s)->tdata = (PTR) g;
be3ccd9c 7993 elf_section_data (s)->this_hdr.sh_flags
7403cb63 7994 |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
252b5132
RH
7995
7996 return true;
7997}
7998
c6142e5d
MM
7999/* Returns the .msym section for ABFD, creating it if it does not
8000 already exist. Returns NULL to indicate error. */
8001
8002static asection *
8003mips_elf_create_msym_section (abfd)
8004 bfd *abfd;
8005{
8006 asection *s;
8007
8008 s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
be3ccd9c 8009 if (!s)
c6142e5d
MM
8010 {
8011 s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
8012 if (!s
be3ccd9c 8013 || !bfd_set_section_flags (abfd, s,
c6142e5d
MM
8014 SEC_ALLOC
8015 | SEC_LOAD
8016 | SEC_HAS_CONTENTS
be3ccd9c 8017 | SEC_LINKER_CREATED
c6142e5d 8018 | SEC_READONLY)
103186c6
MM
8019 || !bfd_set_section_alignment (abfd, s,
8020 MIPS_ELF_LOG_FILE_ALIGN (abfd)))
c6142e5d
MM
8021 return NULL;
8022 }
8023
8024 return s;
8025}
8026
103186c6
MM
8027/* Add room for N relocations to the .rel.dyn section in ABFD. */
8028
8029static void
8030mips_elf_allocate_dynamic_relocations (abfd, n)
8031 bfd *abfd;
8032 unsigned int n;
8033{
8034 asection *s;
8035
8036 s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd));
8037 BFD_ASSERT (s != NULL);
be3ccd9c 8038
103186c6
MM
8039 if (s->_raw_size == 0)
8040 {
be3ccd9c 8041 /* Make room for a null element. */
103186c6
MM
8042 s->_raw_size += MIPS_ELF_REL_SIZE (abfd);
8043 ++s->reloc_count;
8044 }
8045 s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd);
8046}
8047
252b5132
RH
8048/* Look through the relocs for a section during the first phase, and
8049 allocate space in the global offset table. */
8050
103186c6
MM
8051boolean
8052_bfd_mips_elf_check_relocs (abfd, info, sec, relocs)
252b5132
RH
8053 bfd *abfd;
8054 struct bfd_link_info *info;
8055 asection *sec;
8056 const Elf_Internal_Rela *relocs;
8057{
8058 const char *name;
8059 bfd *dynobj;
8060 Elf_Internal_Shdr *symtab_hdr;
8061 struct elf_link_hash_entry **sym_hashes;
8062 struct mips_got_info *g;
8063 size_t extsymoff;
8064 const Elf_Internal_Rela *rel;
8065 const Elf_Internal_Rela *rel_end;
8066 asection *sgot;
8067 asection *sreloc;
103186c6 8068 struct elf_backend_data *bed;
252b5132
RH
8069
8070 if (info->relocateable)
8071 return true;
8072
8073 dynobj = elf_hash_table (info)->dynobj;
8074 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8075 sym_hashes = elf_sym_hashes (abfd);
8076 extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
8077
8078 /* Check for the mips16 stub sections. */
8079
8080 name = bfd_get_section_name (abfd, sec);
8081 if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0)
8082 {
8083 unsigned long r_symndx;
8084
8085 /* Look at the relocation information to figure out which symbol
8086 this is for. */
8087
8088 r_symndx = ELF32_R_SYM (relocs->r_info);
8089
8090 if (r_symndx < extsymoff
8091 || sym_hashes[r_symndx - extsymoff] == NULL)
8092 {
8093 asection *o;
8094
8095 /* This stub is for a local symbol. This stub will only be
8096 needed if there is some relocation in this BFD, other
8097 than a 16 bit function call, which refers to this symbol. */
8098 for (o = abfd->sections; o != NULL; o = o->next)
8099 {
8100 Elf_Internal_Rela *sec_relocs;
8101 const Elf_Internal_Rela *r, *rend;
8102
8103 /* We can ignore stub sections when looking for relocs. */
8104 if ((o->flags & SEC_RELOC) == 0
8105 || o->reloc_count == 0
8106 || strncmp (bfd_get_section_name (abfd, o), FN_STUB,
8107 sizeof FN_STUB - 1) == 0
8108 || strncmp (bfd_get_section_name (abfd, o), CALL_STUB,
8109 sizeof CALL_STUB - 1) == 0
8110 || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB,
8111 sizeof CALL_FP_STUB - 1) == 0)
8112 continue;
8113
8114 sec_relocs = (_bfd_elf32_link_read_relocs
8115 (abfd, o, (PTR) NULL,
8116 (Elf_Internal_Rela *) NULL,
8117 info->keep_memory));
8118 if (sec_relocs == NULL)
8119 return false;
8120
8121 rend = sec_relocs + o->reloc_count;
8122 for (r = sec_relocs; r < rend; r++)
8123 if (ELF32_R_SYM (r->r_info) == r_symndx
8124 && ELF32_R_TYPE (r->r_info) != R_MIPS16_26)
8125 break;
8126
8127 if (! info->keep_memory)
8128 free (sec_relocs);
8129
8130 if (r < rend)
8131 break;
8132 }
8133
8134 if (o == NULL)
8135 {
8136 /* There is no non-call reloc for this stub, so we do
8137 not need it. Since this function is called before
8138 the linker maps input sections to output sections, we
8139 can easily discard it by setting the SEC_EXCLUDE
8140 flag. */
8141 sec->flags |= SEC_EXCLUDE;
8142 return true;
8143 }
8144
8145 /* Record this stub in an array of local symbol stubs for
be3ccd9c 8146 this BFD. */
252b5132
RH
8147 if (elf_tdata (abfd)->local_stubs == NULL)
8148 {
8149 unsigned long symcount;
8150 asection **n;
dc810e39 8151 bfd_size_type amt;
252b5132
RH
8152
8153 if (elf_bad_symtab (abfd))
d9bc7a44 8154 symcount = NUM_SHDR_ENTRIES (symtab_hdr);
252b5132
RH
8155 else
8156 symcount = symtab_hdr->sh_info;
dc810e39
AM
8157 amt = symcount * sizeof (asection *);
8158 n = (asection **) bfd_zalloc (abfd, amt);
252b5132
RH
8159 if (n == NULL)
8160 return false;
8161 elf_tdata (abfd)->local_stubs = n;
8162 }
8163
8164 elf_tdata (abfd)->local_stubs[r_symndx] = sec;
8165
8166 /* We don't need to set mips16_stubs_seen in this case.
8167 That flag is used to see whether we need to look through
8168 the global symbol table for stubs. We don't need to set
8169 it here, because we just have a local stub. */
8170 }
8171 else
8172 {
8173 struct mips_elf_link_hash_entry *h;
8174
8175 h = ((struct mips_elf_link_hash_entry *)
8176 sym_hashes[r_symndx - extsymoff]);
8177
8178 /* H is the symbol this stub is for. */
8179
8180 h->fn_stub = sec;
8181 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8182 }
8183 }
8184 else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0
8185 || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8186 {
8187 unsigned long r_symndx;
8188 struct mips_elf_link_hash_entry *h;
8189 asection **loc;
8190
8191 /* Look at the relocation information to figure out which symbol
8192 this is for. */
8193
8194 r_symndx = ELF32_R_SYM (relocs->r_info);
8195
8196 if (r_symndx < extsymoff
8197 || sym_hashes[r_symndx - extsymoff] == NULL)
8198 {
8199 /* This stub was actually built for a static symbol defined
8200 in the same file. We assume that all static symbols in
8201 mips16 code are themselves mips16, so we can simply
8202 discard this stub. Since this function is called before
8203 the linker maps input sections to output sections, we can
8204 easily discard it by setting the SEC_EXCLUDE flag. */
8205 sec->flags |= SEC_EXCLUDE;
8206 return true;
8207 }
8208
8209 h = ((struct mips_elf_link_hash_entry *)
8210 sym_hashes[r_symndx - extsymoff]);
8211
8212 /* H is the symbol this stub is for. */
8213
8214 if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
8215 loc = &h->call_fp_stub;
8216 else
8217 loc = &h->call_stub;
8218
8219 /* If we already have an appropriate stub for this function, we
8220 don't need another one, so we can discard this one. Since
8221 this function is called before the linker maps input sections
8222 to output sections, we can easily discard it by setting the
8223 SEC_EXCLUDE flag. We can also discard this section if we
8224 happen to already know that this is a mips16 function; it is
8225 not necessary to check this here, as it is checked later, but
8226 it is slightly faster to check now. */
8227 if (*loc != NULL || h->root.other == STO_MIPS16)
8228 {
8229 sec->flags |= SEC_EXCLUDE;
8230 return true;
8231 }
8232
8233 *loc = sec;
8234 mips_elf_hash_table (info)->mips16_stubs_seen = true;
8235 }
8236
8237 if (dynobj == NULL)
8238 {
8239 sgot = NULL;
8240 g = NULL;
8241 }
8242 else
8243 {
103186c6 8244 sgot = mips_elf_got_section (dynobj);
252b5132
RH
8245 if (sgot == NULL)
8246 g = NULL;
8247 else
8248 {
8249 BFD_ASSERT (elf_section_data (sgot) != NULL);
8250 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
8251 BFD_ASSERT (g != NULL);
8252 }
8253 }
8254
8255 sreloc = NULL;
103186c6
MM
8256 bed = get_elf_backend_data (abfd);
8257 rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
8258 for (rel = relocs; rel < rel_end; ++rel)
252b5132
RH
8259 {
8260 unsigned long r_symndx;
dc810e39 8261 unsigned int r_type;
252b5132
RH
8262 struct elf_link_hash_entry *h;
8263
8264 r_symndx = ELF32_R_SYM (rel->r_info);
7403cb63 8265 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
8266
8267 if (r_symndx < extsymoff)
8268 h = NULL;
d9bc7a44 8269 else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr))
7a3120d9 8270 {
8f615d07
AM
8271 (*_bfd_error_handler)
8272 (_("%s: Malformed reloc detected for section %s"),
8273 bfd_archive_filename (abfd), name);
7a3120d9
NC
8274 bfd_set_error (bfd_error_bad_value);
8275 return false;
8276 }
252b5132
RH
8277 else
8278 {
8279 h = sym_hashes[r_symndx - extsymoff];
8280
8281 /* This may be an indirect symbol created because of a version. */
8282 if (h != NULL)
8283 {
8284 while (h->root.type == bfd_link_hash_indirect)
8285 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8286 }
8287 }
8288
8289 /* Some relocs require a global offset table. */
8290 if (dynobj == NULL || sgot == NULL)
8291 {
7403cb63 8292 switch (r_type)
252b5132
RH
8293 {
8294 case R_MIPS_GOT16:
8295 case R_MIPS_CALL16:
8296 case R_MIPS_CALL_HI16:
8297 case R_MIPS_CALL_LO16:
8298 case R_MIPS_GOT_HI16:
8299 case R_MIPS_GOT_LO16:
435394bf
MM
8300 case R_MIPS_GOT_PAGE:
8301 case R_MIPS_GOT_OFST:
8302 case R_MIPS_GOT_DISP:
252b5132
RH
8303 if (dynobj == NULL)
8304 elf_hash_table (info)->dynobj = dynobj = abfd;
8305 if (! mips_elf_create_got_section (dynobj, info))
8306 return false;
7403cb63 8307 g = mips_elf_got_info (dynobj, &sgot);
252b5132
RH
8308 break;
8309
8310 case R_MIPS_32:
8311 case R_MIPS_REL32:
a3c7651d 8312 case R_MIPS_64:
252b5132
RH
8313 if (dynobj == NULL
8314 && (info->shared || h != NULL)
8315 && (sec->flags & SEC_ALLOC) != 0)
8316 elf_hash_table (info)->dynobj = dynobj = abfd;
8317 break;
8318
8319 default:
8320 break;
8321 }
8322 }
8323
7403cb63
MM
8324 if (!h && (r_type == R_MIPS_CALL_LO16
8325 || r_type == R_MIPS_GOT_LO16
9458945f 8326 || r_type == R_MIPS_GOT_DISP))
252b5132 8327 {
7403cb63 8328 /* We may need a local GOT entry for this relocation. We
97287574
MM
8329 don't count R_MIPS_GOT_PAGE because we can estimate the
8330 maximum number of pages needed by looking at the size of
9117d219
NC
8331 the segment. Similar comments apply to R_MIPS_GOT16 and
8332 R_MIPS_CALL16. We don't count R_MIPS_GOT_HI16, or
8333 R_MIPS_CALL_HI16 because these are always followed by an
8334 R_MIPS_GOT_LO16 or R_MIPS_CALL_LO16.
7403cb63
MM
8335
8336 This estimation is very conservative since we can merge
8337 duplicate entries in the GOT. In order to be less
8338 conservative, we could actually build the GOT here,
8339 rather than in relocate_section. */
8340 g->local_gotno++;
a3c7651d 8341 sgot->_raw_size += MIPS_ELF_GOT_SIZE (dynobj);
7403cb63 8342 }
252b5132 8343
7403cb63
MM
8344 switch (r_type)
8345 {
8346 case R_MIPS_CALL16:
252b5132
RH
8347 if (h == NULL)
8348 {
8349 (*_bfd_error_handler)
8350 (_("%s: CALL16 reloc at 0x%lx not against global symbol"),
8f615d07 8351 bfd_archive_filename (abfd), (unsigned long) rel->r_offset);
252b5132
RH
8352 bfd_set_error (bfd_error_bad_value);
8353 return false;
8354 }
7403cb63 8355 /* Fall through. */
252b5132 8356
7403cb63
MM
8357 case R_MIPS_CALL_HI16:
8358 case R_MIPS_CALL_LO16:
5a44662b
MM
8359 if (h != NULL)
8360 {
8361 /* This symbol requires a global offset table entry. */
8362 if (!mips_elf_record_global_got_symbol (h, info, g))
8363 return false;
252b5132 8364
5a44662b
MM
8365 /* We need a stub, not a plt entry for the undefined
8366 function. But we record it as if it needs plt. See
8367 elf_adjust_dynamic_symbol in elflink.h. */
8368 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
8369 h->type = STT_FUNC;
8370 }
252b5132
RH
8371 break;
8372
8373 case R_MIPS_GOT16:
8374 case R_MIPS_GOT_HI16:
8375 case R_MIPS_GOT_LO16:
7403cb63 8376 case R_MIPS_GOT_DISP:
252b5132 8377 /* This symbol requires a global offset table entry. */
7403cb63
MM
8378 if (h && !mips_elf_record_global_got_symbol (h, info, g))
8379 return false;
252b5132
RH
8380 break;
8381
8382 case R_MIPS_32:
8383 case R_MIPS_REL32:
a3c7651d 8384 case R_MIPS_64:
252b5132
RH
8385 if ((info->shared || h != NULL)
8386 && (sec->flags & SEC_ALLOC) != 0)
8387 {
8388 if (sreloc == NULL)
8389 {
dc810e39 8390 const char *dname = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj);
252b5132 8391
dc810e39 8392 sreloc = bfd_get_section_by_name (dynobj, dname);
252b5132
RH
8393 if (sreloc == NULL)
8394 {
dc810e39 8395 sreloc = bfd_make_section (dynobj, dname);
252b5132
RH
8396 if (sreloc == NULL
8397 || ! bfd_set_section_flags (dynobj, sreloc,
8398 (SEC_ALLOC
8399 | SEC_LOAD
8400 | SEC_HAS_CONTENTS
8401 | SEC_IN_MEMORY
8402 | SEC_LINKER_CREATED
8403 | SEC_READONLY))
8404 || ! bfd_set_section_alignment (dynobj, sreloc,
8405 4))
8406 return false;
8407 }
8408 }
43917054 8409#define MIPS_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
252b5132 8410 if (info->shared)
43917054
L
8411 {
8412 /* When creating a shared object, we must copy these
8413 reloc types into the output file as R_MIPS_REL32
8414 relocs. We make room for this reloc in the
8415 .rel.dyn reloc section. */
8416 mips_elf_allocate_dynamic_relocations (dynobj, 1);
8417 if ((sec->flags & MIPS_READONLY_SECTION)
8418 == MIPS_READONLY_SECTION)
8419 /* We tell the dynamic linker that there are
8420 relocations against the text segment. */
8421 info->flags |= DF_TEXTREL;
8422 }
252b5132
RH
8423 else
8424 {
8425 struct mips_elf_link_hash_entry *hmips;
8426
8427 /* We only need to copy this reloc if the symbol is
8428 defined in a dynamic object. */
8429 hmips = (struct mips_elf_link_hash_entry *) h;
a3c7651d 8430 ++hmips->possibly_dynamic_relocs;
43917054
L
8431 if ((sec->flags & MIPS_READONLY_SECTION)
8432 == MIPS_READONLY_SECTION)
8433 /* We need it to tell the dynamic linker if there
8434 are relocations against the text segment. */
8435 hmips->readonly_reloc = true;
252b5132 8436 }
be3ccd9c 8437
7403cb63
MM
8438 /* Even though we don't directly need a GOT entry for
8439 this symbol, a symbol must have a dynamic symbol
5499724a 8440 table index greater that DT_MIPS_GOTSYM if there are
7403cb63 8441 dynamic relocations against it. */
7b1f1231
MM
8442 if (h != NULL
8443 && !mips_elf_record_global_got_symbol (h, info, g))
7403cb63 8444 return false;
252b5132
RH
8445 }
8446
313ba8d6 8447 if (SGI_COMPAT (abfd))
252b5132
RH
8448 mips_elf_hash_table (info)->compact_rel_size +=
8449 sizeof (Elf32_External_crinfo);
252b5132
RH
8450 break;
8451
8452 case R_MIPS_26:
8453 case R_MIPS_GPREL16:
8454 case R_MIPS_LITERAL:
8455 case R_MIPS_GPREL32:
313ba8d6 8456 if (SGI_COMPAT (abfd))
252b5132
RH
8457 mips_elf_hash_table (info)->compact_rel_size +=
8458 sizeof (Elf32_External_crinfo);
8459 break;
8460
8461 /* This relocation describes the C++ object vtable hierarchy.
8462 Reconstruct it for later use during GC. */
8463 case R_MIPS_GNU_VTINHERIT:
8464 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
8465 return false;
8466 break;
8467
8468 /* This relocation describes which C++ vtable entries are actually
8469 used. Record for later use during GC. */
8470 case R_MIPS_GNU_VTENTRY:
8471 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
8472 return false;
8473 break;
8474
8475 default:
8476 break;
8477 }
8478
9117d219
NC
8479 /* We must not create a stub for a symbol that has relocations
8480 related to taking the function's address. */
8481 switch (r_type)
8482 {
8483 default:
8484 if (h != NULL)
8485 {
8486 struct mips_elf_link_hash_entry *mh;
8487
8488 mh = (struct mips_elf_link_hash_entry *) h;
8489 mh->no_fn_stub = true;
8490 }
8491 break;
8492 case R_MIPS_CALL16:
8493 case R_MIPS_CALL_HI16:
8494 case R_MIPS_CALL_LO16:
8495 break;
8496 }
8497
252b5132
RH
8498 /* If this reloc is not a 16 bit call, and it has a global
8499 symbol, then we will need the fn_stub if there is one.
be3ccd9c 8500 References from a stub section do not count. */
252b5132 8501 if (h != NULL
7403cb63 8502 && r_type != R_MIPS16_26
252b5132
RH
8503 && strncmp (bfd_get_section_name (abfd, sec), FN_STUB,
8504 sizeof FN_STUB - 1) != 0
8505 && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB,
8506 sizeof CALL_STUB - 1) != 0
8507 && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB,
8508 sizeof CALL_FP_STUB - 1) != 0)
8509 {
8510 struct mips_elf_link_hash_entry *mh;
8511
8512 mh = (struct mips_elf_link_hash_entry *) h;
8513 mh->need_fn_stub = true;
8514 }
8515 }
8516
8517 return true;
8518}
8519
8520/* Return the section that should be marked against GC for a given
8521 relocation. */
8522
103186c6
MM
8523asection *
8524_bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
252b5132 8525 bfd *abfd;
5f771d47 8526 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH
8527 Elf_Internal_Rela *rel;
8528 struct elf_link_hash_entry *h;
8529 Elf_Internal_Sym *sym;
8530{
8531 /* ??? Do mips16 stub sections need to be handled special? */
8532
8533 if (h != NULL)
8534 {
8535 switch (ELF32_R_TYPE (rel->r_info))
8536 {
8537 case R_MIPS_GNU_VTINHERIT:
8538 case R_MIPS_GNU_VTENTRY:
8539 break;
8540
8541 default:
8542 switch (h->root.type)
8543 {
8544 case bfd_link_hash_defined:
8545 case bfd_link_hash_defweak:
8546 return h->root.u.def.section;
8547
8548 case bfd_link_hash_common:
8549 return h->root.u.c.p->section;
8550
8551 default:
8552 break;
8553 }
8554 }
8555 }
8556 else
8557 {
9ad5cbcf 8558 return bfd_section_from_elf_index (abfd, sym->st_shndx);
252b5132
RH
8559 }
8560
8561 return NULL;
8562}
8563
8564/* Update the got entry reference counts for the section being removed. */
8565
103186c6
MM
8566boolean
8567_bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
5f771d47
ILT
8568 bfd *abfd ATTRIBUTE_UNUSED;
8569 struct bfd_link_info *info ATTRIBUTE_UNUSED;
8570 asection *sec ATTRIBUTE_UNUSED;
8571 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
252b5132
RH
8572{
8573#if 0
8574 Elf_Internal_Shdr *symtab_hdr;
8575 struct elf_link_hash_entry **sym_hashes;
8576 bfd_signed_vma *local_got_refcounts;
8577 const Elf_Internal_Rela *rel, *relend;
8578 unsigned long r_symndx;
8579 struct elf_link_hash_entry *h;
8580
8581 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
8582 sym_hashes = elf_sym_hashes (abfd);
8583 local_got_refcounts = elf_local_got_refcounts (abfd);
8584
8585 relend = relocs + sec->reloc_count;
8586 for (rel = relocs; rel < relend; rel++)
8587 switch (ELF32_R_TYPE (rel->r_info))
8588 {
8589 case R_MIPS_GOT16:
8590 case R_MIPS_CALL16:
8591 case R_MIPS_CALL_HI16:
8592 case R_MIPS_CALL_LO16:
8593 case R_MIPS_GOT_HI16:
8594 case R_MIPS_GOT_LO16:
8595 /* ??? It would seem that the existing MIPS code does no sort
8596 of reference counting or whatnot on its GOT and PLT entries,
8597 so it is not possible to garbage collect them at this time. */
be3ccd9c 8598 break;
252b5132
RH
8599
8600 default:
8601 break;
8602 }
8603#endif
8604
8605 return true;
8606}
8607
8a20f077
UC
8608/* Copy data from a MIPS ELF indirect symbol to its direct symbol,
8609 hiding the old indirect symbol. Process additional relocation
58e3d09d 8610 information. Also called for weakdefs, in which case we just let
8ea52284 8611 _bfd_elf_link_hash_copy_indirect copy the flags for us. */
8a20f077 8612
9e80ff3a 8613static void
8a20f077
UC
8614_bfd_mips_elf_copy_indirect_symbol (dir, ind)
8615 struct elf_link_hash_entry *dir, *ind;
8616{
8617 struct mips_elf_link_hash_entry *dirmips, *indmips;
8618
8619 _bfd_elf_link_hash_copy_indirect (dir, ind);
8620
1e370bd2 8621 if (ind->root.type != bfd_link_hash_indirect)
58e3d09d
AM
8622 return;
8623
8a20f077
UC
8624 dirmips = (struct mips_elf_link_hash_entry *) dir;
8625 indmips = (struct mips_elf_link_hash_entry *) ind;
8626 dirmips->possibly_dynamic_relocs += indmips->possibly_dynamic_relocs;
43917054
L
8627 if (indmips->readonly_reloc)
8628 dirmips->readonly_reloc = true;
8a20f077
UC
8629 if (dirmips->min_dyn_reloc_index == 0
8630 || (indmips->min_dyn_reloc_index != 0
be3ccd9c 8631 && indmips->min_dyn_reloc_index < dirmips->min_dyn_reloc_index))
8a20f077 8632 dirmips->min_dyn_reloc_index = indmips->min_dyn_reloc_index;
9117d219
NC
8633 if (indmips->no_fn_stub)
8634 dirmips->no_fn_stub = true;
8a20f077
UC
8635}
8636
252b5132
RH
8637/* Adjust a symbol defined by a dynamic object and referenced by a
8638 regular object. The current definition is in some section of the
8639 dynamic object, but we're not including those sections. We have to
8640 change the definition to something the rest of the link can
8641 understand. */
8642
103186c6
MM
8643boolean
8644_bfd_mips_elf_adjust_dynamic_symbol (info, h)
252b5132
RH
8645 struct bfd_link_info *info;
8646 struct elf_link_hash_entry *h;
8647{
8648 bfd *dynobj;
8649 struct mips_elf_link_hash_entry *hmips;
8650 asection *s;
8651
8652 dynobj = elf_hash_table (info)->dynobj;
8653
8654 /* Make sure we know what is going on here. */
8655 BFD_ASSERT (dynobj != NULL
8656 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
8657 || h->weakdef != NULL
8658 || ((h->elf_link_hash_flags
8659 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8660 && (h->elf_link_hash_flags
8661 & ELF_LINK_HASH_REF_REGULAR) != 0
8662 && (h->elf_link_hash_flags
8663 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
8664
8665 /* If this symbol is defined in a dynamic object, we need to copy
8666 any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output
8667 file. */
8668 hmips = (struct mips_elf_link_hash_entry *) h;
8669 if (! info->relocateable
a3c7651d 8670 && hmips->possibly_dynamic_relocs != 0
2bab9785 8671 && (h->root.type == bfd_link_hash_defweak
dc810e39 8672 || (h->elf_link_hash_flags
2bab9785 8673 & ELF_LINK_HASH_DEF_REGULAR) == 0))
43917054
L
8674 {
8675 mips_elf_allocate_dynamic_relocations (dynobj,
8676 hmips->possibly_dynamic_relocs);
8677 if (hmips->readonly_reloc)
8678 /* We tell the dynamic linker that there are relocations
8679 against the text segment. */
8680 info->flags |= DF_TEXTREL;
8681 }
252b5132 8682
9117d219
NC
8683 /* For a function, create a stub, if allowed. */
8684 if (! hmips->no_fn_stub
8685 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
252b5132
RH
8686 {
8687 if (! elf_hash_table (info)->dynamic_sections_created)
8688 return true;
8689
8690 /* If this symbol is not defined in a regular file, then set
8691 the symbol to the stub location. This is required to make
8692 function pointers compare as equal between the normal
8693 executable and the shared library. */
8694 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
8695 {
8696 /* We need .stub section. */
be3ccd9c 8697 s = bfd_get_section_by_name (dynobj,
303f629d 8698 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
8699 BFD_ASSERT (s != NULL);
8700
8701 h->root.u.def.section = s;
8702 h->root.u.def.value = s->_raw_size;
8703
8704 /* XXX Write this stub address somewhere. */
8705 h->plt.offset = s->_raw_size;
8706
8707 /* Make room for this stub code. */
8708 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8709
8710 /* The last half word of the stub will be filled with the index
8711 of this symbol in .dynsym section. */
8712 return true;
8713 }
8714 }
f7cb7d68 8715 else if ((h->type == STT_FUNC)
be3ccd9c 8716 && (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
f7cb7d68
UC
8717 {
8718 /* This will set the entry for this symbol in the GOT to 0, and
be3ccd9c 8719 the dynamic linker will take care of this. */
f7cb7d68
UC
8720 h->root.u.def.value = 0;
8721 return true;
8722 }
252b5132
RH
8723
8724 /* If this is a weak symbol, and there is a real definition, the
8725 processor independent code will have arranged for us to see the
8726 real definition first, and we can just use the same value. */
8727 if (h->weakdef != NULL)
8728 {
8729 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
8730 || h->weakdef->root.type == bfd_link_hash_defweak);
8731 h->root.u.def.section = h->weakdef->root.u.def.section;
8732 h->root.u.def.value = h->weakdef->root.u.def.value;
8733 return true;
8734 }
8735
8736 /* This is a reference to a symbol defined by a dynamic object which
8737 is not a function. */
8738
8739 return true;
8740}
8741
8742/* This function is called after all the input files have been read,
8743 and the input sections have been assigned to output sections. We
8744 check for any mips16 stub sections that we can discard. */
8745
8746static boolean mips_elf_check_mips16_stubs
8747 PARAMS ((struct mips_elf_link_hash_entry *, PTR));
8748
103186c6
MM
8749boolean
8750_bfd_mips_elf_always_size_sections (output_bfd, info)
252b5132
RH
8751 bfd *output_bfd;
8752 struct bfd_link_info *info;
8753{
8754 asection *ri;
8755
8756 /* The .reginfo section has a fixed size. */
8757 ri = bfd_get_section_by_name (output_bfd, ".reginfo");
8758 if (ri != NULL)
dc810e39
AM
8759 bfd_set_section_size (output_bfd, ri,
8760 (bfd_size_type) sizeof (Elf32_External_RegInfo));
252b5132
RH
8761
8762 if (info->relocateable
8763 || ! mips_elf_hash_table (info)->mips16_stubs_seen)
8764 return true;
8765
8766 mips_elf_link_hash_traverse (mips_elf_hash_table (info),
8767 mips_elf_check_mips16_stubs,
8768 (PTR) NULL);
8769
8770 return true;
8771}
8772
8773/* Check the mips16 stubs for a particular symbol, and see if we can
8774 discard them. */
8775
252b5132
RH
8776static boolean
8777mips_elf_check_mips16_stubs (h, data)
8778 struct mips_elf_link_hash_entry *h;
5f771d47 8779 PTR data ATTRIBUTE_UNUSED;
252b5132
RH
8780{
8781 if (h->fn_stub != NULL
8782 && ! h->need_fn_stub)
8783 {
8784 /* We don't need the fn_stub; the only references to this symbol
8785 are 16 bit calls. Clobber the size to 0 to prevent it from
8786 being included in the link. */
8787 h->fn_stub->_raw_size = 0;
8788 h->fn_stub->_cooked_size = 0;
be3ccd9c 8789 h->fn_stub->flags &= ~SEC_RELOC;
252b5132
RH
8790 h->fn_stub->reloc_count = 0;
8791 h->fn_stub->flags |= SEC_EXCLUDE;
8792 }
8793
8794 if (h->call_stub != NULL
8795 && h->root.other == STO_MIPS16)
8796 {
8797 /* We don't need the call_stub; this is a 16 bit function, so
8798 calls from other 16 bit functions are OK. Clobber the size
8799 to 0 to prevent it from being included in the link. */
8800 h->call_stub->_raw_size = 0;
8801 h->call_stub->_cooked_size = 0;
be3ccd9c 8802 h->call_stub->flags &= ~SEC_RELOC;
252b5132
RH
8803 h->call_stub->reloc_count = 0;
8804 h->call_stub->flags |= SEC_EXCLUDE;
8805 }
8806
8807 if (h->call_fp_stub != NULL
8808 && h->root.other == STO_MIPS16)
8809 {
8810 /* We don't need the call_stub; this is a 16 bit function, so
8811 calls from other 16 bit functions are OK. Clobber the size
8812 to 0 to prevent it from being included in the link. */
8813 h->call_fp_stub->_raw_size = 0;
8814 h->call_fp_stub->_cooked_size = 0;
be3ccd9c 8815 h->call_fp_stub->flags &= ~SEC_RELOC;
252b5132
RH
8816 h->call_fp_stub->reloc_count = 0;
8817 h->call_fp_stub->flags |= SEC_EXCLUDE;
8818 }
8819
8820 return true;
8821}
8822
8823/* Set the sizes of the dynamic sections. */
8824
103186c6
MM
8825boolean
8826_bfd_mips_elf_size_dynamic_sections (output_bfd, info)
252b5132
RH
8827 bfd *output_bfd;
8828 struct bfd_link_info *info;
8829{
8830 bfd *dynobj;
8831 asection *s;
8832 boolean reltext;
7a12753d 8833 struct mips_got_info *g = NULL;
252b5132
RH
8834
8835 dynobj = elf_hash_table (info)->dynobj;
8836 BFD_ASSERT (dynobj != NULL);
8837
8838 if (elf_hash_table (info)->dynamic_sections_created)
8839 {
8840 /* Set the contents of the .interp section to the interpreter. */
8841 if (! info->shared)
8842 {
8843 s = bfd_get_section_by_name (dynobj, ".interp");
8844 BFD_ASSERT (s != NULL);
be3ccd9c 8845 s->_raw_size
303f629d 8846 = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1;
be3ccd9c 8847 s->contents
7403cb63 8848 = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd);
252b5132
RH
8849 }
8850 }
8851
252b5132
RH
8852 /* The check_relocs and adjust_dynamic_symbol entry points have
8853 determined the sizes of the various dynamic sections. Allocate
8854 memory for them. */
8855 reltext = false;
8856 for (s = dynobj->sections; s != NULL; s = s->next)
8857 {
8858 const char *name;
8859 boolean strip;
8860
8861 /* It's OK to base decisions on the section name, because none
8862 of the dynobj section names depend upon the input files. */
8863 name = bfd_get_section_name (dynobj, s);
8864
8865 if ((s->flags & SEC_LINKER_CREATED) == 0)
8866 continue;
8867
8868 strip = false;
8869
8870 if (strncmp (name, ".rel", 4) == 0)
8871 {
8872 if (s->_raw_size == 0)
8873 {
8874 /* We only strip the section if the output section name
8875 has the same name. Otherwise, there might be several
8876 input sections for this output section. FIXME: This
8877 code is probably not needed these days anyhow, since
8878 the linker now does not create empty output sections. */
8879 if (s->output_section != NULL
8880 && strcmp (name,
8881 bfd_get_section_name (s->output_section->owner,
8882 s->output_section)) == 0)
8883 strip = true;
8884 }
8885 else
8886 {
8887 const char *outname;
8888 asection *target;
8889
8890 /* If this relocation section applies to a read only
8891 section, then we probably need a DT_TEXTREL entry.
8892 If the relocation section is .rel.dyn, we always
8893 assert a DT_TEXTREL entry rather than testing whether
8894 there exists a relocation to a read only section or
8895 not. */
8896 outname = bfd_get_section_name (output_bfd,
8897 s->output_section);
8898 target = bfd_get_section_by_name (output_bfd, outname + 4);
8899 if ((target != NULL
8900 && (target->flags & SEC_READONLY) != 0
8901 && (target->flags & SEC_ALLOC) != 0)
be3ccd9c 8902 || strcmp (outname,
103186c6 8903 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0)
252b5132
RH
8904 reltext = true;
8905
8906 /* We use the reloc_count field as a counter if we need
8907 to copy relocs into the output file. */
be3ccd9c 8908 if (strcmp (name,
103186c6 8909 MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0)
252b5132
RH
8910 s->reloc_count = 0;
8911 }
8912 }
8913 else if (strncmp (name, ".got", 4) == 0)
8914 {
8915 int i;
be3ccd9c
KH
8916 bfd_size_type loadable_size = 0;
8917 bfd_size_type local_gotno;
d1cf510e 8918 bfd *sub;
252b5132 8919
be3ccd9c 8920 BFD_ASSERT (elf_section_data (s) != NULL);
252b5132 8921 g = (struct mips_got_info *) elf_section_data (s)->tdata;
be3ccd9c
KH
8922 BFD_ASSERT (g != NULL);
8923
8924 /* Calculate the total loadable size of the output. That
8925 will give us the maximum number of GOT_PAGE entries
8926 required. */
8927 for (sub = info->input_bfds; sub; sub = sub->link_next)
8928 {
8929 asection *subsection;
8930
8931 for (subsection = sub->sections;
8932 subsection;
8933 subsection = subsection->next)
8934 {
8935 if ((subsection->flags & SEC_ALLOC) == 0)
8936 continue;
dc810e39
AM
8937 loadable_size += ((subsection->_raw_size + 0xf)
8938 &~ (bfd_size_type) 0xf);
be3ccd9c
KH
8939 }
8940 }
8941 loadable_size += MIPS_FUNCTION_STUB_SIZE;
8942
8943 /* Assume there are two loadable segments consisting of
8944 contiguous sections. Is 5 enough? */
8945 local_gotno = (loadable_size >> 16) + 5;
9458945f
MM
8946 if (IRIX_COMPAT (output_bfd) == ict_irix6)
8947 /* It's possible we will need GOT_PAGE entries as well as
8948 GOT16 entries. Often, these will be able to share GOT
8949 entries, but not always. */
8950 local_gotno *= 2;
8951
be3ccd9c
KH
8952 g->local_gotno += local_gotno;
8953 s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj);
7403cb63 8954
be3ccd9c
KH
8955 /* There has to be a global GOT entry for every symbol with
8956 a dynamic symbol table index of DT_MIPS_GOTSYM or
8957 higher. Therefore, it make sense to put those symbols
8958 that need GOT entries at the end of the symbol table. We
8959 do that here. */
b3be9b46 8960 if (!mips_elf_sort_hash_table (info, 1))
7403cb63
MM
8961 return false;
8962
8b237a89
MM
8963 if (g->global_gotsym != NULL)
8964 i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
8965 else
8966 /* If there are no global symbols, or none requiring
8967 relocations, then GLOBAL_GOTSYM will be NULL. */
8968 i = 0;
b3be9b46 8969 g->global_gotno = i;
103186c6 8970 s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj);
252b5132 8971 }
303f629d 8972 else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0)
252b5132
RH
8973 {
8974 /* Irix rld assumes that the function stub isn't at the end
8975 of .text section. So put a dummy. XXX */
8976 s->_raw_size += MIPS_FUNCTION_STUB_SIZE;
8977 }
8978 else if (! info->shared
8979 && ! mips_elf_hash_table (info)->use_rld_obj_head
8980 && strncmp (name, ".rld_map", 8) == 0)
8981 {
8982 /* We add a room for __rld_map. It will be filled in by the
8983 rtld to contain a pointer to the _r_debug structure. */
8984 s->_raw_size += 4;
8985 }
8986 else if (SGI_COMPAT (output_bfd)
8987 && strncmp (name, ".compact_rel", 12) == 0)
8988 s->_raw_size += mips_elf_hash_table (info)->compact_rel_size;
c6142e5d
MM
8989 else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))
8990 == 0)
be3ccd9c 8991 s->_raw_size = (sizeof (Elf32_External_Msym)
c6142e5d
MM
8992 * (elf_hash_table (info)->dynsymcount
8993 + bfd_count_sections (output_bfd)));
252b5132
RH
8994 else if (strncmp (name, ".init", 5) != 0)
8995 {
8996 /* It's not one of our sections, so don't allocate space. */
8997 continue;
8998 }
8999
9000 if (strip)
9001 {
7f8d5fc9 9002 _bfd_strip_section_from_output (info, s);
252b5132
RH
9003 continue;
9004 }
9005
9006 /* Allocate memory for the section contents. */
303f629d 9007 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
252b5132
RH
9008 if (s->contents == NULL && s->_raw_size != 0)
9009 {
9010 bfd_set_error (bfd_error_no_memory);
9011 return false;
9012 }
252b5132
RH
9013 }
9014
9015 if (elf_hash_table (info)->dynamic_sections_created)
9016 {
9017 /* Add some entries to the .dynamic section. We fill in the
9018 values later, in elf_mips_finish_dynamic_sections, but we
9019 must add the entries now so that we get the correct size for
9020 the .dynamic section. The DT_DEBUG entry is filled in by the
9021 dynamic linker and used by the debugger. */
9022 if (! info->shared)
9023 {
be3ccd9c
KH
9024 /* SGI object has the equivalence of DT_DEBUG in the
9025 DT_MIPS_RLD_MAP entry. */
9026 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
9027 return false;
9028 if (!SGI_COMPAT (output_bfd))
9029 {
9030 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9031 return false;
9032 }
9033 }
f7cb7d68 9034 else
be3ccd9c
KH
9035 {
9036 /* Shared libraries on traditional mips have DT_DEBUG. */
9037 if (!SGI_COMPAT (output_bfd))
9038 {
9039 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
9040 return false;
9041 }
9042 }
43917054 9043
be3ccd9c 9044 if (reltext && SGI_COMPAT (output_bfd))
43917054
L
9045 info->flags |= DF_TEXTREL;
9046
9047 if ((info->flags & DF_TEXTREL) != 0)
252b5132 9048 {
103186c6 9049 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
252b5132
RH
9050 return false;
9051 }
9052
103186c6 9053 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
252b5132
RH
9054 return false;
9055
103186c6
MM
9056 if (bfd_get_section_by_name (dynobj,
9057 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)))
252b5132 9058 {
103186c6 9059 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
252b5132
RH
9060 return false;
9061
103186c6 9062 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
252b5132
RH
9063 return false;
9064
103186c6 9065 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
252b5132
RH
9066 return false;
9067 }
9068
f7cb7d68 9069 if (SGI_COMPAT (output_bfd))
be3ccd9c
KH
9070 {
9071 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0))
f7cb7d68 9072 return false;
be3ccd9c 9073 }
252b5132 9074
f7cb7d68 9075 if (SGI_COMPAT (output_bfd))
be3ccd9c
KH
9076 {
9077 if (!MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0))
f7cb7d68 9078 return false;
be3ccd9c 9079 }
252b5132
RH
9080
9081 if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
9082 {
103186c6 9083 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0))
252b5132
RH
9084 return false;
9085
9086 s = bfd_get_section_by_name (dynobj, ".liblist");
9087 BFD_ASSERT (s != NULL);
9088
103186c6 9089 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0))
252b5132
RH
9090 return false;
9091 }
9092
103186c6 9093 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0))
252b5132
RH
9094 return false;
9095
103186c6 9096 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0))
252b5132
RH
9097 return false;
9098
9099#if 0
9100 /* Time stamps in executable files are a bad idea. */
103186c6 9101 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0))
252b5132
RH
9102 return false;
9103#endif
9104
9105#if 0 /* FIXME */
103186c6 9106 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0))
252b5132
RH
9107 return false;
9108#endif
9109
9110#if 0 /* FIXME */
103186c6 9111 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0))
252b5132
RH
9112 return false;
9113#endif
9114
103186c6 9115 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0))
252b5132
RH
9116 return false;
9117
103186c6 9118 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0))
252b5132
RH
9119 return false;
9120
103186c6 9121 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0))
252b5132
RH
9122 return false;
9123
103186c6 9124 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0))
252b5132
RH
9125 return false;
9126
5499724a 9127 if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0))
252b5132
RH
9128 return false;
9129
7403cb63 9130 if (IRIX_COMPAT (dynobj) == ict_irix5
103186c6 9131 && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0))
252b5132
RH
9132 return false;
9133
7403cb63 9134 if (IRIX_COMPAT (dynobj) == ict_irix6
be3ccd9c 9135 && (bfd_get_section_by_name
7403cb63 9136 (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj)))
103186c6 9137 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
7403cb63 9138 return false;
c6142e5d 9139
be3ccd9c 9140 if (bfd_get_section_by_name (dynobj,
c6142e5d 9141 MIPS_ELF_MSYM_SECTION_NAME (dynobj))
103186c6 9142 && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0))
c6142e5d 9143 return false;
252b5132
RH
9144 }
9145
252b5132
RH
9146 return true;
9147}
9148
7403cb63
MM
9149/* If NAME is one of the special IRIX6 symbols defined by the linker,
9150 adjust it appropriately now. */
9151
9152static void
9153mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym)
5f771d47 9154 bfd *abfd ATTRIBUTE_UNUSED;
7403cb63
MM
9155 const char *name;
9156 Elf_Internal_Sym *sym;
9157{
9158 /* The linker script takes care of providing names and values for
9159 these, but we must place them into the right sections. */
9160 static const char* const text_section_symbols[] = {
9161 "_ftext",
9162 "_etext",
9163 "__dso_displacement",
9164 "__elf_header",
9165 "__program_header_table",
9166 NULL
9167 };
9168
9169 static const char* const data_section_symbols[] = {
9170 "_fdata",
9171 "_edata",
9172 "_end",
9173 "_fbss",
9174 NULL
9175 };
9176
9177 const char* const *p;
9178 int i;
9179
9180 for (i = 0; i < 2; ++i)
be3ccd9c 9181 for (p = (i == 0) ? text_section_symbols : data_section_symbols;
7403cb63
MM
9182 *p;
9183 ++p)
9184 if (strcmp (*p, name) == 0)
9185 {
9186 /* All of these symbols are given type STT_SECTION by the
9187 IRIX6 linker. */
9188 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
be3ccd9c 9189
7403cb63
MM
9190 /* The IRIX linker puts these symbols in special sections. */
9191 if (i == 0)
9192 sym->st_shndx = SHN_MIPS_TEXT;
9193 else
9194 sym->st_shndx = SHN_MIPS_DATA;
be3ccd9c 9195
7403cb63
MM
9196 break;
9197 }
9198}
9199
252b5132
RH
9200/* Finish up dynamic symbol handling. We set the contents of various
9201 dynamic sections here. */
9202
103186c6
MM
9203boolean
9204_bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
252b5132
RH
9205 bfd *output_bfd;
9206 struct bfd_link_info *info;
9207 struct elf_link_hash_entry *h;
9208 Elf_Internal_Sym *sym;
9209{
9210 bfd *dynobj;
9211 bfd_vma gval;
9212 asection *sgot;
c6142e5d 9213 asection *smsym;
252b5132
RH
9214 struct mips_got_info *g;
9215 const char *name;
c6142e5d 9216 struct mips_elf_link_hash_entry *mh;
252b5132
RH
9217
9218 dynobj = elf_hash_table (info)->dynobj;
9219 gval = sym->st_value;
c6142e5d 9220 mh = (struct mips_elf_link_hash_entry *) h;
252b5132
RH
9221
9222 if (h->plt.offset != (bfd_vma) -1)
9223 {
9224 asection *s;
9225 bfd_byte *p;
9226 bfd_byte stub[MIPS_FUNCTION_STUB_SIZE];
9227
9228 /* This symbol has a stub. Set it up. */
9229
9230 BFD_ASSERT (h->dynindx != -1);
9231
be3ccd9c 9232 s = bfd_get_section_by_name (dynobj,
303f629d 9233 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
9234 BFD_ASSERT (s != NULL);
9235
9236 /* Fill the stub. */
9237 p = stub;
dc810e39 9238 bfd_put_32 (output_bfd, (bfd_vma) STUB_LW (output_bfd), p);
252b5132 9239 p += 4;
dc810e39 9240 bfd_put_32 (output_bfd, (bfd_vma) STUB_MOVE (output_bfd), p);
252b5132
RH
9241 p += 4;
9242
9243 /* FIXME: Can h->dynindex be more than 64K? */
9244 if (h->dynindx & 0xffff0000)
9245 return false;
9246
dc810e39 9247 bfd_put_32 (output_bfd, (bfd_vma) STUB_JALR, p);
252b5132 9248 p += 4;
dc810e39 9249 bfd_put_32 (output_bfd, (bfd_vma) STUB_LI16 (output_bfd) + h->dynindx, p);
252b5132
RH
9250
9251 BFD_ASSERT (h->plt.offset <= s->_raw_size);
9252 memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE);
9253
9254 /* Mark the symbol as undefined. plt.offset != -1 occurs
9255 only for the referenced symbol. */
9256 sym->st_shndx = SHN_UNDEF;
9257
9258 /* The run-time linker uses the st_value field of the symbol
9259 to reset the global offset table entry for this external
9260 to its stub address when unlinking a shared object. */
9261 gval = s->output_section->vma + s->output_offset + h->plt.offset;
9262 sym->st_value = gval;
9263 }
9264
b305ef96
UC
9265 BFD_ASSERT (h->dynindx != -1
9266 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0);
252b5132 9267
103186c6 9268 sgot = mips_elf_got_section (dynobj);
252b5132
RH
9269 BFD_ASSERT (sgot != NULL);
9270 BFD_ASSERT (elf_section_data (sgot) != NULL);
9271 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9272 BFD_ASSERT (g != NULL);
9273
7403cb63
MM
9274 /* Run through the global symbol table, creating GOT entries for all
9275 the symbols that need them. */
8b237a89
MM
9276 if (g->global_gotsym != NULL
9277 && h->dynindx >= g->global_gotsym->dynindx)
252b5132 9278 {
7403cb63
MM
9279 bfd_vma offset;
9280 bfd_vma value;
252b5132 9281
7403cb63
MM
9282 if (sym->st_value)
9283 value = sym->st_value;
9284 else
be3ccd9c
KH
9285 {
9286 /* For an entity defined in a shared object, this will be
9287 NULL. (For functions in shared objects for
9288 which we have created stubs, ST_VALUE will be non-NULL.
9289 That's because such the functions are now no longer defined
9290 in a shared object.) */
9291
9292 if (info->shared && h->root.type == bfd_link_hash_undefined)
9293 value = 0;
9294 else
9295 value = h->root.u.def.value;
9296 }
7403cb63 9297 offset = mips_elf_global_got_index (dynobj, h);
103186c6 9298 MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset);
252b5132
RH
9299 }
9300
c6142e5d 9301 /* Create a .msym entry, if appropriate. */
be3ccd9c 9302 smsym = bfd_get_section_by_name (dynobj,
c6142e5d
MM
9303 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
9304 if (smsym)
9305 {
9306 Elf32_Internal_Msym msym;
9307
9308 msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
9309 /* It is undocumented what the `1' indicates, but IRIX6 uses
9310 this value. */
9311 msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
be3ccd9c 9312 bfd_mips_elf_swap_msym_out
c6142e5d
MM
9313 (dynobj, &msym,
9314 ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
9315 }
9316
252b5132
RH
9317 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9318 name = h->root.root.string;
9319 if (strcmp (name, "_DYNAMIC") == 0
9320 || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
9321 sym->st_shndx = SHN_ABS;
f7cb7d68 9322 else if (strcmp (name, "_DYNAMIC_LINK") == 0
be3ccd9c 9323 || strcmp (name, "_DYNAMIC_LINKING") == 0)
252b5132
RH
9324 {
9325 sym->st_shndx = SHN_ABS;
9326 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9327 sym->st_value = 1;
9328 }
f7cb7d68
UC
9329 else if (strcmp (name, "_gp_disp") == 0)
9330 {
9331 sym->st_shndx = SHN_ABS;
9332 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9333 sym->st_value = elf_gp (output_bfd);
9334 }
252b5132
RH
9335 else if (SGI_COMPAT (output_bfd))
9336 {
f7cb7d68 9337 if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0
be3ccd9c 9338 || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0)
252b5132
RH
9339 {
9340 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9341 sym->st_other = STO_PROTECTED;
9342 sym->st_value = 0;
9343 sym->st_shndx = SHN_MIPS_DATA;
9344 }
9345 else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0)
9346 {
9347 sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
9348 sym->st_other = STO_PROTECTED;
9349 sym->st_value = mips_elf_hash_table (info)->procedure_count;
9350 sym->st_shndx = SHN_ABS;
9351 }
9352 else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS)
9353 {
9354 if (h->type == STT_FUNC)
9355 sym->st_shndx = SHN_MIPS_TEXT;
9356 else if (h->type == STT_OBJECT)
9357 sym->st_shndx = SHN_MIPS_DATA;
9358 }
9359 }
9360
7403cb63
MM
9361 /* Handle the IRIX6-specific symbols. */
9362 if (IRIX_COMPAT (output_bfd) == ict_irix6)
9363 mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym);
9364
f7cb7d68 9365 if (! info->shared)
252b5132
RH
9366 {
9367 if (! mips_elf_hash_table (info)->use_rld_obj_head
31a9bdd9
UC
9368 && (strcmp (name, "__rld_map") == 0
9369 || strcmp (name, "__RLD_MAP") == 0))
252b5132
RH
9370 {
9371 asection *s = bfd_get_section_by_name (dynobj, ".rld_map");
9372 BFD_ASSERT (s != NULL);
9373 sym->st_value = s->output_section->vma + s->output_offset;
9374 bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents);
9375 if (mips_elf_hash_table (info)->rld_value == 0)
9376 mips_elf_hash_table (info)->rld_value = sym->st_value;
9377 }
9378 else if (mips_elf_hash_table (info)->use_rld_obj_head
9379 && strcmp (name, "__rld_obj_head") == 0)
9380 {
303f629d 9381 /* IRIX6 does not use a .rld_map section. */
f7cb7d68
UC
9382 if (IRIX_COMPAT (output_bfd) == ict_irix5
9383 || IRIX_COMPAT (output_bfd) == ict_none)
be3ccd9c 9384 BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map")
303f629d 9385 != NULL);
252b5132
RH
9386 mips_elf_hash_table (info)->rld_value = sym->st_value;
9387 }
9388 }
9389
9390 /* If this is a mips16 symbol, force the value to be even. */
9391 if (sym->st_other == STO_MIPS16
9392 && (sym->st_value & 1) != 0)
9393 --sym->st_value;
9394
9395 return true;
9396}
9397
9398/* Finish up the dynamic sections. */
9399
103186c6
MM
9400boolean
9401_bfd_mips_elf_finish_dynamic_sections (output_bfd, info)
252b5132
RH
9402 bfd *output_bfd;
9403 struct bfd_link_info *info;
9404{
9405 bfd *dynobj;
9406 asection *sdyn;
9407 asection *sgot;
9408 struct mips_got_info *g;
9409
9410 dynobj = elf_hash_table (info)->dynobj;
9411
9412 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
9413
103186c6 9414 sgot = mips_elf_got_section (dynobj);
252b5132
RH
9415 if (sgot == NULL)
9416 g = NULL;
9417 else
9418 {
9419 BFD_ASSERT (elf_section_data (sgot) != NULL);
9420 g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
9421 BFD_ASSERT (g != NULL);
9422 }
9423
9424 if (elf_hash_table (info)->dynamic_sections_created)
9425 {
103186c6 9426 bfd_byte *b;
252b5132
RH
9427
9428 BFD_ASSERT (sdyn != NULL);
9429 BFD_ASSERT (g != NULL);
9430
103186c6
MM
9431 for (b = sdyn->contents;
9432 b < sdyn->contents + sdyn->_raw_size;
9433 b += MIPS_ELF_DYN_SIZE (dynobj))
252b5132
RH
9434 {
9435 Elf_Internal_Dyn dyn;
9436 const char *name;
9437 size_t elemsize;
9438 asection *s;
103186c6 9439 boolean swap_out_p;
252b5132 9440
103186c6
MM
9441 /* Read in the current dynamic entry. */
9442 (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
be3ccd9c 9443
103186c6
MM
9444 /* Assume that we're going to modify it and write it out. */
9445 swap_out_p = true;
252b5132
RH
9446
9447 switch (dyn.d_tag)
9448 {
252b5132 9449 case DT_RELENT:
be3ccd9c 9450 s = (bfd_get_section_by_name
103186c6
MM
9451 (dynobj,
9452 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)));
252b5132 9453 BFD_ASSERT (s != NULL);
103186c6 9454 dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj);
252b5132
RH
9455 break;
9456
9457 case DT_STRSZ:
9458 /* Rewrite DT_STRSZ. */
9459 dyn.d_un.d_val =
350836e3 9460 _bfd_elf_strtab_size (elf_hash_table (info)->dynstr);
252b5132
RH
9461 break;
9462
9463 case DT_PLTGOT:
9464 name = ".got";
9465 goto get_vma;
9466 case DT_MIPS_CONFLICT:
9467 name = ".conflict";
9468 goto get_vma;
9469 case DT_MIPS_LIBLIST:
9470 name = ".liblist";
9471 get_vma:
9472 s = bfd_get_section_by_name (output_bfd, name);
9473 BFD_ASSERT (s != NULL);
9474 dyn.d_un.d_ptr = s->vma;
252b5132
RH
9475 break;
9476
9477 case DT_MIPS_RLD_VERSION:
9478 dyn.d_un.d_val = 1; /* XXX */
252b5132
RH
9479 break;
9480
9481 case DT_MIPS_FLAGS:
9482 dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
252b5132
RH
9483 break;
9484
9485 case DT_MIPS_CONFLICTNO:
9486 name = ".conflict";
9487 elemsize = sizeof (Elf32_Conflict);
9488 goto set_elemno;
9489
9490 case DT_MIPS_LIBLISTNO:
9491 name = ".liblist";
9492 elemsize = sizeof (Elf32_Lib);
9493 set_elemno:
9494 s = bfd_get_section_by_name (output_bfd, name);
9495 if (s != NULL)
9496 {
9497 if (s->_cooked_size != 0)
9498 dyn.d_un.d_val = s->_cooked_size / elemsize;
9499 else
9500 dyn.d_un.d_val = s->_raw_size / elemsize;
9501 }
9502 else
be3ccd9c 9503 dyn.d_un.d_val = 0;
252b5132
RH
9504 break;
9505
9506 case DT_MIPS_TIME_STAMP:
9507 time ((time_t *) &dyn.d_un.d_val);
252b5132
RH
9508 break;
9509
9510 case DT_MIPS_ICHECKSUM:
9511 /* XXX FIXME: */
103186c6 9512 swap_out_p = false;
252b5132
RH
9513 break;
9514
9515 case DT_MIPS_IVERSION:
9516 /* XXX FIXME: */
103186c6 9517 swap_out_p = false;
252b5132
RH
9518 break;
9519
9520 case DT_MIPS_BASE_ADDRESS:
9521 s = output_bfd->sections;
9522 BFD_ASSERT (s != NULL);
dc810e39 9523 dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff;
252b5132
RH
9524 break;
9525
9526 case DT_MIPS_LOCAL_GOTNO:
9527 dyn.d_un.d_val = g->local_gotno;
252b5132
RH
9528 break;
9529
5499724a
MM
9530 case DT_MIPS_UNREFEXTNO:
9531 /* The index into the dynamic symbol table which is the
9532 entry of the first external symbol that is not
9533 referenced within the same object. */
9534 dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
9535 break;
9536
9537 case DT_MIPS_GOTSYM:
9538 if (g->global_gotsym)
9539 {
9540 dyn.d_un.d_val = g->global_gotsym->dynindx;
9541 break;
9542 }
9543 /* In case if we don't have global got symbols we default
9544 to setting DT_MIPS_GOTSYM to the same value as
9545 DT_MIPS_SYMTABNO, so we just fall through. */
9546
252b5132
RH
9547 case DT_MIPS_SYMTABNO:
9548 name = ".dynsym";
103186c6 9549 elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
252b5132
RH
9550 s = bfd_get_section_by_name (output_bfd, name);
9551 BFD_ASSERT (s != NULL);
9552
9553 if (s->_cooked_size != 0)
9554 dyn.d_un.d_val = s->_cooked_size / elemsize;
9555 else
9556 dyn.d_un.d_val = s->_raw_size / elemsize;
252b5132
RH
9557 break;
9558
252b5132
RH
9559 case DT_MIPS_HIPAGENO:
9560 dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
252b5132
RH
9561 break;
9562
9563 case DT_MIPS_RLD_MAP:
9564 dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value;
252b5132
RH
9565 break;
9566
7403cb63 9567 case DT_MIPS_OPTIONS:
be3ccd9c 9568 s = (bfd_get_section_by_name
7403cb63
MM
9569 (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
9570 dyn.d_un.d_ptr = s->vma;
7403cb63
MM
9571 break;
9572
c6142e5d 9573 case DT_MIPS_MSYM:
be3ccd9c 9574 s = (bfd_get_section_by_name
c6142e5d
MM
9575 (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)));
9576 dyn.d_un.d_ptr = s->vma;
103186c6
MM
9577 break;
9578
9579 default:
9580 swap_out_p = false;
c6142e5d 9581 break;
252b5132 9582 }
103186c6
MM
9583
9584 if (swap_out_p)
be3ccd9c 9585 (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
103186c6 9586 (dynobj, &dyn, b);
252b5132
RH
9587 }
9588 }
9589
9590 /* The first entry of the global offset table will be filled at
9591 runtime. The second entry will be used by some runtime loaders.
be3ccd9c 9592 This isn't the case of Irix rld. */
252b5132
RH
9593 if (sgot != NULL && sgot->_raw_size > 0)
9594 {
103186c6 9595 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents);
be3ccd9c 9596 MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000,
103186c6 9597 sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd));
252b5132
RH
9598 }
9599
9600 if (sgot != NULL)
103186c6
MM
9601 elf_section_data (sgot->output_section)->this_hdr.sh_entsize
9602 = MIPS_ELF_GOT_SIZE (output_bfd);
252b5132
RH
9603
9604 {
c6142e5d 9605 asection *smsym;
252b5132 9606 asection *s;
252b5132
RH
9607 Elf32_compact_rel cpt;
9608
30b30c21
RH
9609 /* ??? The section symbols for the output sections were set up in
9610 _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these
9611 symbols. Should we do so? */
252b5132 9612
be3ccd9c 9613 smsym = bfd_get_section_by_name (dynobj,
c6142e5d 9614 MIPS_ELF_MSYM_SECTION_NAME (dynobj));
30b30c21 9615 if (smsym != NULL)
252b5132 9616 {
103186c6 9617 Elf32_Internal_Msym msym;
c6142e5d 9618
103186c6
MM
9619 msym.ms_hash_value = 0;
9620 msym.ms_info = ELF32_MS_INFO (0, 1);
c6142e5d 9621
103186c6
MM
9622 for (s = output_bfd->sections; s != NULL; s = s->next)
9623 {
30b30c21 9624 long dynindx = elf_section_data (s)->dynindx;
252b5132 9625
be3ccd9c 9626 bfd_mips_elf_swap_msym_out
30b30c21
RH
9627 (output_bfd, &msym,
9628 (((Elf32_External_Msym *) smsym->contents)
9629 + dynindx));
9630 }
252b5132
RH
9631 }
9632
9633 if (SGI_COMPAT (output_bfd))
9634 {
9635 /* Write .compact_rel section out. */
9636 s = bfd_get_section_by_name (dynobj, ".compact_rel");
9637 if (s != NULL)
9638 {
9639 cpt.id1 = 1;
9640 cpt.num = s->reloc_count;
9641 cpt.id2 = 2;
9642 cpt.offset = (s->output_section->filepos
9643 + sizeof (Elf32_External_compact_rel));
9644 cpt.reserved0 = 0;
9645 cpt.reserved1 = 0;
9646 bfd_elf32_swap_compact_rel_out (output_bfd, &cpt,
9647 ((Elf32_External_compact_rel *)
9648 s->contents));
9649
9650 /* Clean up a dummy stub function entry in .text. */
be3ccd9c 9651 s = bfd_get_section_by_name (dynobj,
303f629d 9652 MIPS_ELF_STUB_SECTION_NAME (dynobj));
252b5132
RH
9653 if (s != NULL)
9654 {
9655 file_ptr dummy_offset;
9656
9657 BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE);
9658 dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE;
9659 memset (s->contents + dummy_offset, 0,
9660 MIPS_FUNCTION_STUB_SIZE);
9661 }
9662 }
9663 }
9664
adb76a3e
UC
9665 /* We need to sort the entries of the dynamic relocation section. */
9666
9667 if (!ABI_64_P (output_bfd))
9668 {
be3ccd9c
KH
9669 asection *reldyn;
9670
9671 reldyn = bfd_get_section_by_name (dynobj,
9672 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
9673 if (reldyn != NULL && reldyn->reloc_count > 2)
9674 {
9675 reldyn_sorting_bfd = output_bfd;
9676 qsort ((Elf32_External_Rel *) reldyn->contents + 1,
9677 (size_t) reldyn->reloc_count - 1,
9678 sizeof (Elf32_External_Rel), sort_dynamic_relocs);
9679 }
adb76a3e
UC
9680 }
9681
252b5132 9682 /* Clean up a first relocation in .rel.dyn. */
be3ccd9c 9683 s = bfd_get_section_by_name (dynobj,
103186c6 9684 MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
252b5132 9685 if (s != NULL && s->_raw_size > 0)
103186c6 9686 memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj));
252b5132
RH
9687 }
9688
9689 return true;
9690}
9691\f
bb0082d6
AM
9692/* Support for core dump NOTE sections */
9693static boolean
9694_bfd_elf32_mips_grok_prstatus (abfd, note)
9695 bfd *abfd;
9696 Elf_Internal_Note *note;
9697{
9698 int offset;
dc810e39 9699 unsigned int raw_size;
bb0082d6
AM
9700
9701 switch (note->descsz)
9702 {
9703 default:
9704 return false;
9705
9706 case 256: /* Linux/MIPS */
9707 /* pr_cursig */
9708 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
9709
9710 /* pr_pid */
9711 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9712
9713 /* pr_reg */
9714 offset = 72;
9715 raw_size = 180;
9716
9717 break;
9718 }
9719
9720 /* Make a ".reg/999" section. */
936e320b
AM
9721 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
9722 raw_size, note->descpos + offset);
bb0082d6
AM
9723}
9724
9e80ff3a
L
9725static boolean
9726_bfd_elf32_mips_grok_psinfo (abfd, note)
bb0082d6
AM
9727 bfd *abfd;
9728 Elf_Internal_Note *note;
9729{
9730 switch (note->descsz)
9731 {
9732 default:
9733 return false;
9734
9735 case 128: /* Linux/MIPS elf_prpsinfo */
9736 elf_tdata (abfd)->core_program
9737 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
9738 elf_tdata (abfd)->core_command
9739 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
9740 }
9741
9742 /* Note that for some reason, a spurious space is tacked
9743 onto the end of the args in some (at least one anyway)
9744 implementations, so strip it off if it exists. */
9745
9746 {
9747 char *command = elf_tdata (abfd)->core_command;
9748 int n = strlen (command);
9749
9750 if (0 < n && command[n - 1] == ' ')
9751 command[n - 1] = '\0';
9752 }
9753
9754 return true;
9755}
9756\f
73d074b4
DJ
9757#define PDR_SIZE 32
9758
9759static boolean
9760_bfd_elf32_mips_discard_info (abfd, cookie, info)
9761 bfd *abfd;
9762 struct elf_reloc_cookie *cookie;
9763 struct bfd_link_info *info;
9764{
9765 asection *o;
9766 struct elf_backend_data *bed = get_elf_backend_data (abfd);
9767 boolean ret = false;
9768 unsigned char *tdata;
9769 size_t i, skip;
9770
9771 o = bfd_get_section_by_name (abfd, ".pdr");
9772 if (! o)
9773 return false;
9774 if (o->_raw_size == 0)
9775 return false;
9776 if (o->_raw_size % PDR_SIZE != 0)
9777 return false;
9778 if (o->output_section != NULL
9779 && bfd_is_abs_section (o->output_section))
9780 return false;
9781
9782 tdata = bfd_zmalloc (o->_raw_size / PDR_SIZE);
9783 if (! tdata)
9784 return false;
9785
9786 cookie->rels = _bfd_elf32_link_read_relocs (abfd, o, (PTR) NULL,
9787 (Elf_Internal_Rela *) NULL,
9788 info->keep_memory);
9789 if (!cookie->rels)
9790 {
9791 free (tdata);
9792 return false;
9793 }
9794
9795 cookie->rel = cookie->rels;
9796 cookie->relend =
9797 cookie->rels + o->reloc_count * bed->s->int_rels_per_ext_rel;
175e9962 9798
73d074b4
DJ
9799 for (i = 0, skip = 0; i < o->_raw_size; i ++)
9800 {
9801 if (_bfd_elf32_reloc_symbol_deleted_p (i * PDR_SIZE, cookie))
9802 {
9803 tdata[i] = 1;
9804 skip ++;
9805 }
9806 }
9807
9808 if (skip != 0)
9809 {
9810 elf_section_data (o)->tdata = tdata;
9811 o->_cooked_size = o->_raw_size - skip * PDR_SIZE;
9812 ret = true;
9813 }
9814 else
9815 free (tdata);
9816
9817 if (! info->keep_memory)
9818 free (cookie->rels);
9819
9820 return ret;
9821}
9822
9823static boolean
9824_bfd_elf32_mips_ignore_discarded_relocs (sec)
9825 asection *sec;
9826{
9827 if (strcmp (sec->name, ".pdr") == 0)
9828 return true;
9829 return false;
9830}
9831
9832static boolean
9833_bfd_elf32_mips_write_section (output_bfd, sec, contents)
9834 bfd *output_bfd;
9835 asection *sec;
9836 bfd_byte *contents;
9837{
9838 bfd_byte *to, *from, *end;
9839 int i;
9840
9841 if (strcmp (sec->name, ".pdr") != 0)
9842 return false;
9843
9844 if (elf_section_data (sec)->tdata == NULL)
9845 return false;
9846
9847 to = contents;
9848 end = contents + sec->_raw_size;
9849 for (from = contents, i = 0;
9850 from < end;
9851 from += PDR_SIZE, i++)
9852 {
9853 if (((unsigned char *)elf_section_data (sec)->tdata)[i] == 1)
9854 continue;
9855 if (to != from)
9856 memcpy (to, from, PDR_SIZE);
9857 to += PDR_SIZE;
9858 }
9859 bfd_set_section_contents (output_bfd, sec->output_section, contents,
9860 (file_ptr) sec->output_offset,
9861 sec->_cooked_size);
9862 return true;
9863}
9864\f
030d18fb
CD
9865/* Given a data section and an in-memory embedded reloc section, store
9866 relocation information into the embedded reloc section which can be
9867 used at runtime to relocate the data section. This is called by the
9868 linker when the --embedded-relocs switch is used. This is called
9869 after the add_symbols entry point has been called for all the
9870 objects, and before the final_link entry point is called. */
9871
9872boolean
9873bfd_mips_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
9874 bfd *abfd;
9875 struct bfd_link_info *info;
9876 asection *datasec;
9877 asection *relsec;
9878 char **errmsg;
9879{
9880 Elf_Internal_Shdr *symtab_hdr;
9881 Elf_Internal_Shdr *shndx_hdr;
9882 Elf32_External_Sym *extsyms;
9883 Elf32_External_Sym *free_extsyms = NULL;
9884 Elf_External_Sym_Shndx *shndx_buf = NULL;
9885 Elf_Internal_Rela *internal_relocs;
9886 Elf_Internal_Rela *free_relocs = NULL;
9887 Elf_Internal_Rela *irel, *irelend;
9888 bfd_byte *p;
9889 bfd_size_type amt;
9890
9891 BFD_ASSERT (! info->relocateable);
9892
9893 *errmsg = NULL;
9894
9895 if (datasec->reloc_count == 0)
9896 return true;
9897
9898 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
9899 /* Read this BFD's symbols if we haven't done so already, or get the cached
9900 copy if it exists. */
9901 if (symtab_hdr->contents != NULL)
9902 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
9903 else
9904 {
9905 /* Go get them off disk. */
9906 if (info->keep_memory)
9907 extsyms = ((Elf32_External_Sym *)
9908 bfd_alloc (abfd, symtab_hdr->sh_size));
9909 else
9910 extsyms = ((Elf32_External_Sym *)
9911 bfd_malloc (symtab_hdr->sh_size));
9912 if (extsyms == NULL)
9913 goto error_return;
9914 if (! info->keep_memory)
9915 free_extsyms = extsyms;
9916 if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
9917 || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd)
9918 != symtab_hdr->sh_size))
9919 goto error_return;
9920 if (info->keep_memory)
9921 symtab_hdr->contents = (unsigned char *) extsyms;
9922 }
9923
9924 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
9925 if (shndx_hdr->sh_size != 0)
9926 {
9927 amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
9928 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
9929 if (shndx_buf == NULL)
9930 goto error_return;
9931 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
9932 || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
9933 goto error_return;
9934 }
9935
9936 /* Get a copy of the native relocations. */
9937 internal_relocs = (_bfd_elf32_link_read_relocs
9938 (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
9939 info->keep_memory));
9940 if (internal_relocs == NULL)
9941 goto error_return;
9942 if (! info->keep_memory)
9943 free_relocs = internal_relocs;
9944
9945 relsec->contents = (bfd_byte *) bfd_alloc (abfd, datasec->reloc_count * 12);
9946 if (relsec->contents == NULL)
9947 goto error_return;
9948
9949 p = relsec->contents;
9950
9951 irelend = internal_relocs + datasec->reloc_count;
9952
9953 for (irel = internal_relocs; irel < irelend; irel++, p += 12)
9954 {
9955 asection *targetsec;
9956
9957 /* We are going to write a four byte longword into the runtime
9958 reloc section. The longword will be the address in the data
9959 section which must be relocated. It is followed by the name
9960 of the target section NUL-padded or truncated to 8
9961 characters. */
9962
9963 /* We can only relocate absolute longword relocs at run time. */
9964 if ((ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_32) &&
9965 (ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_64))
9966 {
9967 *errmsg = _("unsupported reloc type");
9968 bfd_set_error (bfd_error_bad_value);
9969 goto error_return;
9970 }
9971 /* Get the target section referred to by the reloc. */
9972 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
9973 {
9974 Elf32_External_Sym *esym;
9975 Elf_External_Sym_Shndx *shndx;
9976 Elf_Internal_Sym isym;
9977
9978 /* A local symbol. */
9979 esym = extsyms + ELF32_R_SYM (irel->r_info);
9980 shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
9981 bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
9982
9983 targetsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
9984 }
9985 else
9986 {
9987 unsigned long indx;
9988 struct elf_link_hash_entry *h;
9989
9990 /* An external symbol. */
9991 indx = ELF32_R_SYM (irel->r_info);
9992 h = elf_sym_hashes (abfd)[indx];
9993 targetsec = NULL;
9994 /*
9995 * For some reason, in certain programs, the symbol will
9996 * not be in the hash table. It seems to happen when you
9997 * declare a static table of pointers to const external structures.
9998 * In this case, the relocs are relative to data, not
9999 * text, so just treating it like an undefined link
10000 * should be sufficient.
10001 */
10002 BFD_ASSERT(h != NULL);
10003 if (h->root.type == bfd_link_hash_defined
10004 || h->root.type == bfd_link_hash_defweak)
10005 targetsec = h->root.u.def.section;
10006 }
10007
10008
10009 /*
10010 * Set the low bit of the relocation offset if it's a MIPS64 reloc.
10011 * Relocations will always be on (at least) 32-bit boundaries.
10012 */
10013
10014 bfd_put_32 (abfd, ((irel->r_offset + datasec->output_offset) +
10015 ((ELF32_R_TYPE (irel->r_info) == (int) R_MIPS_64) ? 1 : 0)),
10016 p);
10017 memset (p + 4, 0, 8);
10018 if (targetsec != NULL)
10019 strncpy (p + 4, targetsec->output_section->name, 8);
10020 }
10021
10022 if (shndx_buf != NULL)
10023 free (shndx_buf);
10024 if (free_extsyms != NULL)
10025 free (free_extsyms);
10026 if (free_relocs != NULL)
10027 free (free_relocs);
10028 return true;
10029
10030 error_return:
10031 if (shndx_buf != NULL)
10032 free (shndx_buf);
10033 if (free_extsyms != NULL)
10034 free (free_extsyms);
10035 if (free_relocs != NULL)
10036 free (free_relocs);
10037 return false;
10038}
10039\f
252b5132
RH
10040/* This is almost identical to bfd_generic_get_... except that some
10041 MIPS relocations need to be handled specially. Sigh. */
10042
10043static bfd_byte *
10044elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data,
10045 relocateable, symbols)
10046 bfd *abfd;
10047 struct bfd_link_info *link_info;
10048 struct bfd_link_order *link_order;
10049 bfd_byte *data;
10050 boolean relocateable;
10051 asymbol **symbols;
10052{
10053 /* Get enough memory to hold the stuff */
10054 bfd *input_bfd = link_order->u.indirect.section->owner;
10055 asection *input_section = link_order->u.indirect.section;
10056
10057 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
10058 arelent **reloc_vector = NULL;
10059 long reloc_count;
10060
10061 if (reloc_size < 0)
10062 goto error_return;
10063
dc810e39 10064 reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
252b5132
RH
10065 if (reloc_vector == NULL && reloc_size != 0)
10066 goto error_return;
10067
10068 /* read in the section */
10069 if (!bfd_get_section_contents (input_bfd,
10070 input_section,
10071 (PTR) data,
dc810e39 10072 (file_ptr) 0,
252b5132
RH
10073 input_section->_raw_size))
10074 goto error_return;
10075
10076 /* We're not relaxing the section, so just copy the size info */
10077 input_section->_cooked_size = input_section->_raw_size;
10078 input_section->reloc_done = true;
10079
10080 reloc_count = bfd_canonicalize_reloc (input_bfd,
10081 input_section,
10082 reloc_vector,
10083 symbols);
10084 if (reloc_count < 0)
10085 goto error_return;
10086
10087 if (reloc_count > 0)
10088 {
10089 arelent **parent;
10090 /* for mips */
10091 int gp_found;
10092 bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */
10093
10094 {
10095 struct bfd_hash_entry *h;
10096 struct bfd_link_hash_entry *lh;
10097 /* Skip all this stuff if we aren't mixing formats. */
10098 if (abfd && input_bfd
10099 && abfd->xvec == input_bfd->xvec)
10100 lh = 0;
10101 else
10102 {
10103 h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false);
10104 lh = (struct bfd_link_hash_entry *) h;
10105 }
10106 lookup:
10107 if (lh)
10108 {
10109 switch (lh->type)
10110 {
10111 case bfd_link_hash_undefined:
10112 case bfd_link_hash_undefweak:
10113 case bfd_link_hash_common:
10114 gp_found = 0;
10115 break;
10116 case bfd_link_hash_defined:
10117 case bfd_link_hash_defweak:
10118 gp_found = 1;
10119 gp = lh->u.def.value;
10120 break;
10121 case bfd_link_hash_indirect:
10122 case bfd_link_hash_warning:
10123 lh = lh->u.i.link;
10124 /* @@FIXME ignoring warning for now */
10125 goto lookup;
10126 case bfd_link_hash_new:
10127 default:
10128 abort ();
10129 }
10130 }
10131 else
10132 gp_found = 0;
10133 }
10134 /* end mips */
10135 for (parent = reloc_vector; *parent != (arelent *) NULL;
10136 parent++)
10137 {
10138 char *error_message = (char *) NULL;
10139 bfd_reloc_status_type r;
10140
10141 /* Specific to MIPS: Deal with relocation types that require
10142 knowing the gp of the output bfd. */
10143 asymbol *sym = *(*parent)->sym_ptr_ptr;
10144 if (bfd_is_abs_section (sym->section) && abfd)
10145 {
10146 /* The special_function wouldn't get called anyways. */
10147 }
10148 else if (!gp_found)
10149 {
10150 /* The gp isn't there; let the special function code
10151 fall over on its own. */
10152 }
10153 else if ((*parent)->howto->special_function
10154 == _bfd_mips_elf_gprel16_reloc)
10155 {
10156 /* bypass special_function call */
10157 r = gprel16_with_gp (input_bfd, sym, *parent, input_section,
10158 relocateable, (PTR) data, gp);
10159 goto skip_bfd_perform_relocation;
10160 }
10161 /* end mips specific stuff */
10162
10163 r = bfd_perform_relocation (input_bfd,
10164 *parent,
10165 (PTR) data,
10166 input_section,
10167 relocateable ? abfd : (bfd *) NULL,
10168 &error_message);
10169 skip_bfd_perform_relocation:
10170
10171 if (relocateable)
10172 {
10173 asection *os = input_section->output_section;
10174
10175 /* A partial link, so keep the relocs */
10176 os->orelocation[os->reloc_count] = *parent;
10177 os->reloc_count++;
10178 }
10179
10180 if (r != bfd_reloc_ok)
10181 {
10182 switch (r)
10183 {
10184 case bfd_reloc_undefined:
10185 if (!((*link_info->callbacks->undefined_symbol)
10186 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
5cc7c785
L
10187 input_bfd, input_section, (*parent)->address,
10188 true)))
252b5132
RH
10189 goto error_return;
10190 break;
10191 case bfd_reloc_dangerous:
10192 BFD_ASSERT (error_message != (char *) NULL);
10193 if (!((*link_info->callbacks->reloc_dangerous)
10194 (link_info, error_message, input_bfd, input_section,
10195 (*parent)->address)))
10196 goto error_return;
10197 break;
10198 case bfd_reloc_overflow:
10199 if (!((*link_info->callbacks->reloc_overflow)
10200 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
10201 (*parent)->howto->name, (*parent)->addend,
10202 input_bfd, input_section, (*parent)->address)))
10203 goto error_return;
10204 break;
10205 case bfd_reloc_outofrange:
10206 default:
10207 abort ();
10208 break;
10209 }
10210
10211 }
10212 }
10213 }
10214 if (reloc_vector != NULL)
10215 free (reloc_vector);
10216 return data;
10217
10218error_return:
10219 if (reloc_vector != NULL)
10220 free (reloc_vector);
10221 return NULL;
10222}
be3ccd9c 10223
252b5132
RH
10224#define bfd_elf32_bfd_get_relocated_section_contents \
10225 elf32_mips_get_relocated_section_contents
10226\f
10227/* ECOFF swapping routines. These are used when dealing with the
10228 .mdebug section, which is in the ECOFF debugging format. */
be3ccd9c 10229static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
252b5132
RH
10230 /* Symbol table magic number. */
10231 magicSym,
10232 /* Alignment of debugging information. E.g., 4. */
10233 4,
10234 /* Sizes of external symbolic information. */
10235 sizeof (struct hdr_ext),
10236 sizeof (struct dnr_ext),
10237 sizeof (struct pdr_ext),
10238 sizeof (struct sym_ext),
10239 sizeof (struct opt_ext),
10240 sizeof (struct fdr_ext),
10241 sizeof (struct rfd_ext),
10242 sizeof (struct ext_ext),
10243 /* Functions to swap in external symbolic data. */
10244 ecoff_swap_hdr_in,
10245 ecoff_swap_dnr_in,
10246 ecoff_swap_pdr_in,
10247 ecoff_swap_sym_in,
10248 ecoff_swap_opt_in,
10249 ecoff_swap_fdr_in,
10250 ecoff_swap_rfd_in,
10251 ecoff_swap_ext_in,
10252 _bfd_ecoff_swap_tir_in,
10253 _bfd_ecoff_swap_rndx_in,
10254 /* Functions to swap out external symbolic data. */
10255 ecoff_swap_hdr_out,
10256 ecoff_swap_dnr_out,
10257 ecoff_swap_pdr_out,
10258 ecoff_swap_sym_out,
10259 ecoff_swap_opt_out,
10260 ecoff_swap_fdr_out,
10261 ecoff_swap_rfd_out,
10262 ecoff_swap_ext_out,
10263 _bfd_ecoff_swap_tir_out,
10264 _bfd_ecoff_swap_rndx_out,
10265 /* Function to read in symbolic data. */
10266 _bfd_mips_elf_read_ecoff_info
10267};
10268\f
252b5132
RH
10269#define ELF_ARCH bfd_arch_mips
10270#define ELF_MACHINE_CODE EM_MIPS
10271
10272/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
10273 a value of 0x1000, and we are compatible. */
10274#define ELF_MAXPAGESIZE 0x1000
10275
10276#define elf_backend_collect true
10277#define elf_backend_type_change_ok true
10278#define elf_backend_can_gc_sections true
3f830999 10279#define elf_info_to_howto mips_info_to_howto_rela
252b5132
RH
10280#define elf_info_to_howto_rel mips_info_to_howto_rel
10281#define elf_backend_sym_is_global mips_elf_sym_is_global
103186c6 10282#define elf_backend_object_p _bfd_mips_elf_object_p
d75bc93d
TS
10283#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
10284#define elf_backend_section_processing _bfd_mips_elf_section_processing
103186c6 10285#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
252b5132
RH
10286#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
10287#define elf_backend_section_from_bfd_section \
10288 _bfd_mips_elf_section_from_bfd_section
103186c6 10289#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
d75bc93d
TS
10290#define elf_backend_link_output_symbol_hook \
10291 _bfd_mips_elf_link_output_symbol_hook
103186c6
MM
10292#define elf_backend_create_dynamic_sections \
10293 _bfd_mips_elf_create_dynamic_sections
10294#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
10295#define elf_backend_adjust_dynamic_symbol \
10296 _bfd_mips_elf_adjust_dynamic_symbol
10297#define elf_backend_always_size_sections \
10298 _bfd_mips_elf_always_size_sections
10299#define elf_backend_size_dynamic_sections \
10300 _bfd_mips_elf_size_dynamic_sections
10301#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
103186c6
MM
10302#define elf_backend_finish_dynamic_symbol \
10303 _bfd_mips_elf_finish_dynamic_symbol
10304#define elf_backend_finish_dynamic_sections \
10305 _bfd_mips_elf_finish_dynamic_sections
d75bc93d
TS
10306#define elf_backend_final_write_processing \
10307 _bfd_mips_elf_final_write_processing
10308#define elf_backend_additional_program_headers \
10309 _bfd_mips_elf_additional_program_headers
10310#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
103186c6
MM
10311#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
10312#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
8a20f077
UC
10313#define elf_backend_copy_indirect_symbol \
10314 _bfd_mips_elf_copy_indirect_symbol
b305ef96 10315#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
bb0082d6
AM
10316#define elf_backend_grok_prstatus _bfd_elf32_mips_grok_prstatus
10317#define elf_backend_grok_psinfo _bfd_elf32_mips_grok_psinfo
d75bc93d
TS
10318#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
10319
10320#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
10321#define elf_backend_plt_header_size 0
10322#define elf_backend_may_use_rel_p 1
10323#define elf_backend_may_use_rela_p 0
10324#define elf_backend_default_use_rela_p 0
10325#define elf_backend_sign_extend_vma true
b305ef96 10326
73d074b4
DJ
10327#define elf_backend_discard_info _bfd_elf32_mips_discard_info
10328#define elf_backend_ignore_discarded_relocs \
10329 _bfd_elf32_mips_ignore_discarded_relocs
10330#define elf_backend_write_section _bfd_elf32_mips_write_section
10331
252b5132
RH
10332#define bfd_elf32_bfd_is_local_label_name \
10333 mips_elf_is_local_label_name
10334#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
10335#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
10336#define bfd_elf32_bfd_link_hash_table_create \
103186c6
MM
10337 _bfd_mips_elf_link_hash_table_create
10338#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
252b5132
RH
10339#define bfd_elf32_bfd_merge_private_bfd_data \
10340 _bfd_mips_elf_merge_private_bfd_data
10341#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
10342#define bfd_elf32_bfd_print_private_bfd_data \
10343 _bfd_mips_elf_print_private_bfd_data
e364195d 10344
d75bc93d
TS
10345/* Support for SGI-ish mips targets. */
10346#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
10347#define TARGET_LITTLE_NAME "elf32-littlemips"
10348#define TARGET_BIG_SYM bfd_elf32_bigmips_vec
10349#define TARGET_BIG_NAME "elf32-bigmips"
10350
10351#include "elf32-target.h"
e364195d 10352
d75bc93d
TS
10353/* Support for traditional mips targets. */
10354#define INCLUDED_TARGET_FILE /* More a type of flag. */
e364195d
UC
10355
10356#undef TARGET_LITTLE_SYM
10357#undef TARGET_LITTLE_NAME
10358#undef TARGET_BIG_SYM
10359#undef TARGET_BIG_NAME
10360
10361#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
10362#define TARGET_LITTLE_NAME "elf32-tradlittlemips"
10363#define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
10364#define TARGET_BIG_NAME "elf32-tradbigmips"
10365
10366/* Include the target file again for this target */
10367#include "elf32-target.h"
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