projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
* ldexp.c (exp_fold_tree): Don't immediately exit ld on a
[deliverable/binutils-gdb.git] / bfd / elf64-alpha.c
CommitLineData
252b5132 1/* Alpha specific support for 64-bit ELF
b2a8e766 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
7898deda 3 Free Software Foundation, Inc.
252b5132
RH		 4 Contributed by Richard Henderson <rth@tamu.edu>.
5
571fe01f 6 This file is part of BFD, the Binary File Descriptor library.
252b5132 7
571fe01f
NC		 8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
252b5132 12
571fe01f
NC		 13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
252b5132 17
571fe01f
NC		 18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
252b5132
RH		 21
22/* We need a published ABI spec for this. Until one comes out, don't
23 assume this'll remain unchanged forever. */
24
25#include "bfd.h"
26#include "sysdep.h"
27#include "libbfd.h"
28#include "elf-bfd.h"
29
30#include "elf/alpha.h"
31
32#define ALPHAECOFF
33
34#define NO_COFF_RELOCS
35#define NO_COFF_SYMBOLS
36#define NO_COFF_LINENOS
37
fe8bc63d 38/* Get the ECOFF swapping routines. Needed for the debug information. */
252b5132
RH		 39#include "coff/internal.h"
40#include "coff/sym.h"
41#include "coff/symconst.h"
42#include "coff/ecoff.h"
43#include "coff/alpha.h"
44#include "aout/ar.h"
45#include "libcoff.h"
46#include "libecoff.h"
47#define ECOFF_64
48#include "ecoffswap.h"
49
986a241f 50static bfd_boolean alpha_elf_dynamic_symbol_p
571fe01f 51 PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *));
252b5132 52static struct bfd_hash_entry * elf64_alpha_link_hash_newfunc
571fe01f 53 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
252b5132 54static struct bfd_link_hash_table * elf64_alpha_bfd_link_hash_table_create
571fe01f 55 PARAMS ((bfd *));
252b5132
RH		 56
57static bfd_reloc_status_type elf64_alpha_reloc_nil
571fe01f 58 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
252b5132 59static bfd_reloc_status_type elf64_alpha_reloc_bad
571fe01f 60 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
252b5132 61static bfd_reloc_status_type elf64_alpha_do_reloc_gpdisp
571fe01f 62 PARAMS ((bfd *, bfd_vma, bfd_byte *, bfd_byte *));
252b5132 63static bfd_reloc_status_type elf64_alpha_reloc_gpdisp
571fe01f 64 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
252b5132
RH		 65
66static reloc_howto_type * elf64_alpha_bfd_reloc_type_lookup
571fe01f 67 PARAMS ((bfd *, bfd_reloc_code_real_type));
252b5132 68static void elf64_alpha_info_to_howto
571fe01f 69 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
252b5132 70
b34976b6 71static bfd_boolean elf64_alpha_mkobject
571fe01f 72 PARAMS ((bfd *));
b34976b6 73static bfd_boolean elf64_alpha_object_p
571fe01f 74 PARAMS ((bfd *));
b34976b6 75static bfd_boolean elf64_alpha_section_from_shdr
571fe01f 76 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
b34976b6 77static bfd_boolean elf64_alpha_section_flags
1829f4b2 78 PARAMS ((flagword *, const Elf_Internal_Shdr *));
b34976b6 79static bfd_boolean elf64_alpha_fake_sections
571fe01f 80 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
b34976b6 81static bfd_boolean elf64_alpha_create_got_section
571fe01f 82 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 83static bfd_boolean elf64_alpha_create_dynamic_sections
571fe01f 84 PARAMS ((bfd *, struct bfd_link_info *));
252b5132 85
b34976b6 86static bfd_boolean elf64_alpha_read_ecoff_info
571fe01f 87 PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
b34976b6 88static bfd_boolean elf64_alpha_is_local_label_name
571fe01f 89 PARAMS ((bfd *, const char *));
b34976b6 90static bfd_boolean elf64_alpha_find_nearest_line
571fe01f
NC		 91 PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
92 const char **, unsigned int *));
252b5132
RH		 93
94#if defined(__STDC__) || defined(ALMOST_STDC)
95struct alpha_elf_link_hash_entry;
96#endif
97
b34976b6 98static bfd_boolean elf64_alpha_output_extsym
571fe01f 99 PARAMS ((struct alpha_elf_link_hash_entry *, PTR));
252b5132 100
b34976b6 101static bfd_boolean elf64_alpha_can_merge_gots
571fe01f 102 PARAMS ((bfd *, bfd *));
252b5132 103static void elf64_alpha_merge_gots
571fe01f 104 PARAMS ((bfd *, bfd *));
b34976b6 105static bfd_boolean elf64_alpha_calc_got_offsets_for_symbol
252b5132 106 PARAMS ((struct alpha_elf_link_hash_entry *, PTR));
b34976b6 107static void elf64_alpha_calc_got_offsets
f44f99a5 108 PARAMS ((struct bfd_link_info *));
b34976b6 109static bfd_boolean elf64_alpha_size_got_sections
f44f99a5 110 PARAMS ((struct bfd_link_info *));
b34976b6
AM		 111static bfd_boolean elf64_alpha_size_plt_section
112 PARAMS ((struct bfd_link_info *));
113static bfd_boolean elf64_alpha_size_plt_section_1
f44f99a5 114 PARAMS ((struct alpha_elf_link_hash_entry *, PTR));
b34976b6 115static bfd_boolean elf64_alpha_always_size_sections
252b5132 116 PARAMS ((bfd *, struct bfd_link_info *));
3765b1be
RH		 117static int alpha_dynamic_entries_for_reloc
118 PARAMS ((int, int, int));
b34976b6 119static bfd_boolean elf64_alpha_calc_dynrel_sizes
252b5132 120 PARAMS ((struct alpha_elf_link_hash_entry *, struct bfd_link_info *));
b34976b6 121static bfd_boolean elf64_alpha_size_rela_got_section
f44f99a5 122 PARAMS ((struct bfd_link_info *));
b34976b6 123static bfd_boolean elf64_alpha_size_rela_got_1
f44f99a5 124 PARAMS ((struct alpha_elf_link_hash_entry *, struct bfd_link_info *));
b34976b6 125static bfd_boolean elf64_alpha_add_symbol_hook
555cd476 126 PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
252b5132 127 const char **, flagword *, asection **, bfd_vma *));
3765b1be
RH		 128static struct alpha_elf_got_entry *get_got_entry
129 PARAMS ((bfd *, struct alpha_elf_link_hash_entry *, unsigned long,
130 unsigned long, bfd_vma));
b34976b6 131static bfd_boolean elf64_alpha_check_relocs
571fe01f 132 PARAMS ((bfd *, struct bfd_link_info *, asection *sec,
252b5132 133 const Elf_Internal_Rela *));
b34976b6 134static bfd_boolean elf64_alpha_adjust_dynamic_symbol
571fe01f 135 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
b34976b6 136static bfd_boolean elf64_alpha_size_dynamic_sections
571fe01f 137 PARAMS ((bfd *, struct bfd_link_info *));
1bbc9cec
RH		 138static void elf64_alpha_emit_dynrel
139 PARAMS ((bfd *, struct bfd_link_info *, asection *, asection *,
140 bfd_vma, long, long, bfd_vma));
b34976b6 141static bfd_boolean elf64_alpha_relocate_section_r
571fe01f
NC		 142 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
143 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
b34976b6 144static bfd_boolean elf64_alpha_relocate_section
571fe01f 145 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
252b5132 146 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
b34976b6 147static bfd_boolean elf64_alpha_finish_dynamic_symbol
571fe01f
NC		 148 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
149 Elf_Internal_Sym *));
b34976b6 150static bfd_boolean elf64_alpha_finish_dynamic_sections
571fe01f 151 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 152static bfd_boolean elf64_alpha_final_link
571fe01f 153 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 154static bfd_boolean elf64_alpha_merge_ind_symbols
571fe01f 155 PARAMS ((struct alpha_elf_link_hash_entry *, PTR));
cd6f9321
L		 156static Elf_Internal_Rela * elf64_alpha_find_reloc_at_ofs
157 PARAMS ((Elf_Internal_Rela *, Elf_Internal_Rela *, bfd_vma, int));
fcfbdf31 158static enum elf_reloc_type_class elf64_alpha_reloc_type_class
f51e552e 159 PARAMS ((const Elf_Internal_Rela *));
252b5132
RH		 160\f
161struct alpha_elf_link_hash_entry
162{
163 struct elf_link_hash_entry root;
164
165 /* External symbol information. */
166 EXTR esym;
167
168 /* Cumulative flags for all the .got entries. */
169 int flags;
170
9e756d64 171 /* Contexts in which a literal was referenced. */
3765b1be
RH		 172#define ALPHA_ELF_LINK_HASH_LU_ADDR 0x01
173#define ALPHA_ELF_LINK_HASH_LU_MEM 0x02
174#define ALPHA_ELF_LINK_HASH_LU_BYTE 0x04
175#define ALPHA_ELF_LINK_HASH_LU_JSR 0x08
176#define ALPHA_ELF_LINK_HASH_LU_TLSGD 0x10
177#define ALPHA_ELF_LINK_HASH_LU_TLSLDM 0x20
178#define ALPHA_ELF_LINK_HASH_LU_FUNC 0x38
9e756d64 179#define ALPHA_ELF_LINK_HASH_TLS_IE 0x40
cc03ec80
RH		 180#define ALPHA_ELF_LINK_HASH_PLT_LOC 0x80
181
182 /* Used to undo the localization of a plt symbol. */
183 asection *plt_old_section;
184 bfd_vma plt_old_value;
252b5132
RH		 185
186 /* Used to implement multiple .got subsections. */
187 struct alpha_elf_got_entry
188 {
189 struct alpha_elf_got_entry *next;
190
571fe01f 191 /* Which .got subsection? */
252b5132
RH		 192 bfd *gotobj;
193
571fe01f 194 /* The addend in effect for this entry. */
dc810e39 195 bfd_vma addend;
252b5132 196
571fe01f 197 /* The .got offset for this entry. */
252b5132
RH		 198 int got_offset;
199
3765b1be
RH		 200 /* How many references to this entry? */
201 int use_count;
252b5132 202
3765b1be
RH		 203 /* The relocation type of this entry. */
204 unsigned char reloc_type;
252b5132 205
3765b1be
RH		 206 /* How a LITERAL is used. */
207 unsigned char flags;
208
209 /* Have we initialized the dynamic relocation for this entry? */
210 unsigned char reloc_done;
211
212 /* Have we adjusted this entry for SEC_MERGE? */
213 unsigned char reloc_xlated;
252b5132
RH		 214 } *got_entries;
215
571fe01f 216 /* Used to count non-got, non-plt relocations for delayed sizing
252b5132
RH		 217 of relocation sections. */
218 struct alpha_elf_reloc_entry
219 {
220 struct alpha_elf_reloc_entry *next;
221
571fe01f 222 /* Which .reloc section? */
252b5132
RH		 223 asection *srel;
224
571fe01f 225 /* What kind of relocation? */
fcfbdf31
JJ		 226 unsigned int rtype;
227
571fe01f 228 /* Is this against read-only section? */
fcfbdf31 229 unsigned int reltext : 1;
252b5132 230
571fe01f 231 /* How many did we find? */
252b5132
RH		 232 unsigned long count;
233 } *reloc_entries;
234};
235
236/* Alpha ELF linker hash table. */
237
238struct alpha_elf_link_hash_table
239{
240 struct elf_link_hash_table root;
241
242 /* The head of a list of .got subsections linked through
243 alpha_elf_tdata(abfd)->got_link_next. */
244 bfd *got_list;
245};
246
247/* Look up an entry in a Alpha ELF linker hash table. */
248
249#define alpha_elf_link_hash_lookup(table, string, create, copy, follow) \
250 ((struct alpha_elf_link_hash_entry *) \
251 elf_link_hash_lookup (&(table)->root, (string), (create), \
252 (copy), (follow)))
253
254/* Traverse a Alpha ELF linker hash table. */
255
256#define alpha_elf_link_hash_traverse(table, func, info) \
257 (elf_link_hash_traverse \
258 (&(table)->root, \
b34976b6 259 (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
252b5132
RH		 260 (info)))
261
262/* Get the Alpha ELF linker hash table from a link_info structure. */
263
264#define alpha_elf_hash_table(p) \
265 ((struct alpha_elf_link_hash_table *) ((p)->hash))
266
267/* Get the object's symbols as our own entry type. */
268
269#define alpha_elf_sym_hashes(abfd) \
270 ((struct alpha_elf_link_hash_entry **)elf_sym_hashes(abfd))
271
986a241f
RH		 272/* Should we do dynamic things to this symbol? This differs from the
273 generic version in that we never need to consider function pointer
274 equality wrt PLT entries -- we don't create a PLT entry if a symbol's
275 address is ever taken. */
252b5132 276
986a241f 277static inline bfd_boolean
8fb35fed
RH		 278alpha_elf_dynamic_symbol_p (h, info)
279 struct elf_link_hash_entry *h;
280 struct bfd_link_info *info;
281{
986a241f 282 return _bfd_elf_dynamic_symbol_p (h, info, 0);
8fb35fed 283}
252b5132
RH		 284
285/* Create an entry in a Alpha ELF linker hash table. */
286
287static struct bfd_hash_entry *
288elf64_alpha_link_hash_newfunc (entry, table, string)
289 struct bfd_hash_entry *entry;
290 struct bfd_hash_table *table;
291 const char *string;
292{
293 struct alpha_elf_link_hash_entry *ret =
294 (struct alpha_elf_link_hash_entry *) entry;
295
296 /* Allocate the structure if it has not already been allocated by a
297 subclass. */
298 if (ret == (struct alpha_elf_link_hash_entry *) NULL)
299 ret = ((struct alpha_elf_link_hash_entry *)
300 bfd_hash_allocate (table,
301 sizeof (struct alpha_elf_link_hash_entry)));
302 if (ret == (struct alpha_elf_link_hash_entry *) NULL)
303 return (struct bfd_hash_entry *) ret;
304
305 /* Call the allocation method of the superclass. */
306 ret = ((struct alpha_elf_link_hash_entry *)
307 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
308 table, string));
309 if (ret != (struct alpha_elf_link_hash_entry *) NULL)
310 {
311 /* Set local fields. */
312 memset (&ret->esym, 0, sizeof (EXTR));
313 /* We use -2 as a marker to indicate that the information has
314 not been set. -1 means there is no associated ifd. */
315 ret->esym.ifd = -2;
316 ret->flags = 0;
317 ret->got_entries = NULL;
318 ret->reloc_entries = NULL;
319 }
320
321 return (struct bfd_hash_entry *) ret;
322}
323
324/* Create a Alpha ELF linker hash table. */
325
326static struct bfd_link_hash_table *
327elf64_alpha_bfd_link_hash_table_create (abfd)
328 bfd *abfd;
329{
330 struct alpha_elf_link_hash_table *ret;
dc810e39 331 bfd_size_type amt = sizeof (struct alpha_elf_link_hash_table);
252b5132 332
e2d34d7d 333 ret = (struct alpha_elf_link_hash_table *) bfd_zmalloc (amt);
252b5132
RH		 334 if (ret == (struct alpha_elf_link_hash_table *) NULL)
335 return NULL;
336
337 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
338 elf64_alpha_link_hash_newfunc))
339 {
e2d34d7d 340 free (ret);
252b5132
RH		 341 return NULL;
342 }
343
344 return &ret->root.root;
345}
346\f
347/* We have some private fields hanging off of the elf_tdata structure. */
348
349struct alpha_elf_obj_tdata
350{
351 struct elf_obj_tdata root;
352
353 /* For every input file, these are the got entries for that object's
354 local symbols. */
355 struct alpha_elf_got_entry ** local_got_entries;
356
357 /* For every input file, this is the object that owns the got that
358 this input file uses. */
359 bfd *gotobj;
360
361 /* For every got, this is a linked list through the objects using this got */
362 bfd *in_got_link_next;
363
364 /* For every got, this is a link to the next got subsegment. */
365 bfd *got_link_next;
366
367 /* For every got, this is the section. */
368 asection *got;
369
3765b1be
RH		 370 /* For every got, this is it's total number of words. */
371 int total_got_size;
252b5132 372
3765b1be 373 /* For every got, this is the sum of the number of words required
252b5132 374 to hold all of the member object's local got. */
3765b1be 375 int local_got_size;
252b5132
RH		 376};
377
378#define alpha_elf_tdata(abfd) \
379 ((struct alpha_elf_obj_tdata *) (abfd)->tdata.any)
380
b34976b6 381static bfd_boolean
252b5132
RH		 382elf64_alpha_mkobject (abfd)
383 bfd *abfd;
384{
dc810e39
AM		 385 bfd_size_type amt = sizeof (struct alpha_elf_obj_tdata);
386 abfd->tdata.any = bfd_zalloc (abfd, amt);
252b5132 387 if (abfd->tdata.any == NULL)
b34976b6
AM		 388 return FALSE;
389 return TRUE;
252b5132
RH		 390}
391
b34976b6 392static bfd_boolean
252b5132
RH		 393elf64_alpha_object_p (abfd)
394 bfd *abfd;
395{
252b5132
RH		 396 /* Set the right machine number for an Alpha ELF file. */
397 return bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
398}
399\f
400/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
401 from smaller values. Start with zero, widen, *then* decrement. */
402#define MINUS_ONE (((bfd_vma)0) - 1)
403
dfe57ca0
RH		 404#define SKIP_HOWTO(N) \
405 HOWTO(N, 0, 0, 0, 0, 0, 0, elf64_alpha_reloc_bad, 0, 0, 0, 0, 0)
406
252b5132
RH		 407static reloc_howto_type elf64_alpha_howto_table[] =
408{
409 HOWTO (R_ALPHA_NONE, /* type */
410 0, /* rightshift */
411 0, /* size (0 = byte, 1 = short, 2 = long) */
412 8, /* bitsize */
b34976b6 413 TRUE, /* pc_relative */
252b5132
RH		 414 0, /* bitpos */
415 complain_overflow_dont, /* complain_on_overflow */
416 elf64_alpha_reloc_nil, /* special_function */
417 "NONE", /* name */
b34976b6 418 FALSE, /* partial_inplace */
252b5132
RH		 419 0, /* src_mask */
420 0, /* dst_mask */
b34976b6 421 TRUE), /* pcrel_offset */
252b5132
RH		 422
423 /* A 32 bit reference to a symbol. */
424 HOWTO (R_ALPHA_REFLONG, /* type */
425 0, /* rightshift */
426 2, /* size (0 = byte, 1 = short, 2 = long) */
427 32, /* bitsize */
b34976b6 428 FALSE, /* pc_relative */
252b5132
RH		 429 0, /* bitpos */
430 complain_overflow_bitfield, /* complain_on_overflow */
431 0, /* special_function */
432 "REFLONG", /* name */
b34976b6 433 FALSE, /* partial_inplace */
252b5132
RH		 434 0xffffffff, /* src_mask */
435 0xffffffff, /* dst_mask */
b34976b6 436 FALSE), /* pcrel_offset */
252b5132
RH		 437
438 /* A 64 bit reference to a symbol. */
439 HOWTO (R_ALPHA_REFQUAD, /* type */
440 0, /* rightshift */
441 4, /* size (0 = byte, 1 = short, 2 = long) */
442 64, /* bitsize */
b34976b6 443 FALSE, /* pc_relative */
252b5132
RH		 444 0, /* bitpos */
445 complain_overflow_bitfield, /* complain_on_overflow */
446 0, /* special_function */
447 "REFQUAD", /* name */
b34976b6 448 FALSE, /* partial_inplace */
252b5132
RH		 449 MINUS_ONE, /* src_mask */
450 MINUS_ONE, /* dst_mask */
b34976b6 451 FALSE), /* pcrel_offset */
252b5132
RH		 452
453 /* A 32 bit GP relative offset. This is just like REFLONG except
454 that when the value is used the value of the gp register will be
455 added in. */
456 HOWTO (R_ALPHA_GPREL32, /* type */
457 0, /* rightshift */
458 2, /* size (0 = byte, 1 = short, 2 = long) */
459 32, /* bitsize */
b34976b6 460 FALSE, /* pc_relative */
252b5132
RH		 461 0, /* bitpos */
462 complain_overflow_bitfield, /* complain_on_overflow */
463 0, /* special_function */
464 "GPREL32", /* name */
b34976b6 465 FALSE, /* partial_inplace */
252b5132
RH		 466 0xffffffff, /* src_mask */
467 0xffffffff, /* dst_mask */
b34976b6 468 FALSE), /* pcrel_offset */
252b5132
RH		 469
470 /* Used for an instruction that refers to memory off the GP register. */
471 HOWTO (R_ALPHA_LITERAL, /* type */
472 0, /* rightshift */
dfe57ca0 473 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 474 16, /* bitsize */
b34976b6 475 FALSE, /* pc_relative */
252b5132
RH		 476 0, /* bitpos */
477 complain_overflow_signed, /* complain_on_overflow */
478 0, /* special_function */
479 "ELF_LITERAL", /* name */
b34976b6 480 FALSE, /* partial_inplace */
252b5132
RH		 481 0xffff, /* src_mask */
482 0xffff, /* dst_mask */
b34976b6 483 FALSE), /* pcrel_offset */
252b5132
RH		 484
485 /* This reloc only appears immediately following an ELF_LITERAL reloc.
486 It identifies a use of the literal. The symbol index is special:
487 1 means the literal address is in the base register of a memory
488 format instruction; 2 means the literal address is in the byte
489 offset register of a byte-manipulation instruction; 3 means the
490 literal address is in the target register of a jsr instruction.
491 This does not actually do any relocation. */
492 HOWTO (R_ALPHA_LITUSE, /* type */
493 0, /* rightshift */
dfe57ca0 494 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 495 32, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
252b5132
RH		 497 0, /* bitpos */
498 complain_overflow_dont, /* complain_on_overflow */
499 elf64_alpha_reloc_nil, /* special_function */
500 "LITUSE", /* name */
b34976b6 501 FALSE, /* partial_inplace */
252b5132
RH		 502 0, /* src_mask */
503 0, /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
252b5132
RH		 505
506 /* Load the gp register. This is always used for a ldah instruction
507 which loads the upper 16 bits of the gp register. The symbol
508 index of the GPDISP instruction is an offset in bytes to the lda
509 instruction that loads the lower 16 bits. The value to use for
510 the relocation is the difference between the GP value and the
511 current location; the load will always be done against a register
512 holding the current address.
513
514 NOTE: Unlike ECOFF, partial in-place relocation is not done. If
515 any offset is present in the instructions, it is an offset from
516 the register to the ldah instruction. This lets us avoid any
517 stupid hackery like inventing a gp value to do partial relocation
518 against. Also unlike ECOFF, we do the whole relocation off of
519 the GPDISP rather than a GPDISP_HI16/GPDISP_LO16 pair. An odd,
520 space consuming bit, that, since all the information was present
521 in the GPDISP_HI16 reloc. */
522 HOWTO (R_ALPHA_GPDISP, /* type */
523 16, /* rightshift */
524 2, /* size (0 = byte, 1 = short, 2 = long) */
525 16, /* bitsize */
b34976b6 526 FALSE, /* pc_relative */
252b5132
RH		 527 0, /* bitpos */
528 complain_overflow_dont, /* complain_on_overflow */
529 elf64_alpha_reloc_gpdisp, /* special_function */
530 "GPDISP", /* name */
b34976b6 531 FALSE, /* partial_inplace */
252b5132
RH		 532 0xffff, /* src_mask */
533 0xffff, /* dst_mask */
b34976b6 534 TRUE), /* pcrel_offset */
252b5132
RH		 535
536 /* A 21 bit branch. */
537 HOWTO (R_ALPHA_BRADDR, /* type */
538 2, /* rightshift */
539 2, /* size (0 = byte, 1 = short, 2 = long) */
540 21, /* bitsize */
b34976b6 541 TRUE, /* pc_relative */
252b5132
RH		 542 0, /* bitpos */
543 complain_overflow_signed, /* complain_on_overflow */
544 0, /* special_function */
545 "BRADDR", /* name */
b34976b6 546 FALSE, /* partial_inplace */
252b5132
RH		 547 0x1fffff, /* src_mask */
548 0x1fffff, /* dst_mask */
b34976b6 549 TRUE), /* pcrel_offset */
252b5132
RH		 550
551 /* A hint for a jump to a register. */
552 HOWTO (R_ALPHA_HINT, /* type */
553 2, /* rightshift */
dfe57ca0 554 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 555 14, /* bitsize */
b34976b6 556 TRUE, /* pc_relative */
252b5132
RH		 557 0, /* bitpos */
558 complain_overflow_dont, /* complain_on_overflow */
559 0, /* special_function */
560 "HINT", /* name */
b34976b6 561 FALSE, /* partial_inplace */
252b5132
RH		 562 0x3fff, /* src_mask */
563 0x3fff, /* dst_mask */
b34976b6 564 TRUE), /* pcrel_offset */
252b5132
RH		 565
566 /* 16 bit PC relative offset. */
567 HOWTO (R_ALPHA_SREL16, /* type */
568 0, /* rightshift */
569 1, /* size (0 = byte, 1 = short, 2 = long) */
570 16, /* bitsize */
b34976b6 571 TRUE, /* pc_relative */
252b5132
RH		 572 0, /* bitpos */
573 complain_overflow_signed, /* complain_on_overflow */
574 0, /* special_function */
575 "SREL16", /* name */
b34976b6 576 FALSE, /* partial_inplace */
252b5132
RH		 577 0xffff, /* src_mask */
578 0xffff, /* dst_mask */
b34976b6 579 TRUE), /* pcrel_offset */
252b5132
RH		 580
581 /* 32 bit PC relative offset. */
582 HOWTO (R_ALPHA_SREL32, /* type */
583 0, /* rightshift */
584 2, /* size (0 = byte, 1 = short, 2 = long) */
585 32, /* bitsize */
b34976b6 586 TRUE, /* pc_relative */
252b5132
RH		 587 0, /* bitpos */
588 complain_overflow_signed, /* complain_on_overflow */
589 0, /* special_function */
590 "SREL32", /* name */
b34976b6 591 FALSE, /* partial_inplace */
252b5132
RH		 592 0xffffffff, /* src_mask */
593 0xffffffff, /* dst_mask */
b34976b6 594 TRUE), /* pcrel_offset */
252b5132
RH		 595
596 /* A 64 bit PC relative offset. */
597 HOWTO (R_ALPHA_SREL64, /* type */
598 0, /* rightshift */
599 4, /* size (0 = byte, 1 = short, 2 = long) */
600 64, /* bitsize */
b34976b6 601 TRUE, /* pc_relative */
252b5132
RH		 602 0, /* bitpos */
603 complain_overflow_signed, /* complain_on_overflow */
604 0, /* special_function */
605 "SREL64", /* name */
b34976b6 606 FALSE, /* partial_inplace */
252b5132
RH		 607 MINUS_ONE, /* src_mask */
608 MINUS_ONE, /* dst_mask */
b34976b6 609 TRUE), /* pcrel_offset */
252b5132 610
dfe57ca0
RH		 611 /* Skip 12 - 16; deprecated ECOFF relocs. */
612 SKIP_HOWTO (12),
613 SKIP_HOWTO (13),
614 SKIP_HOWTO (14),
615 SKIP_HOWTO (15),
616 SKIP_HOWTO (16),
252b5132
RH		 617
618 /* The high 16 bits of the displacement from GP to the target. */
619 HOWTO (R_ALPHA_GPRELHIGH,
620 0, /* rightshift */
dfe57ca0 621 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 622 16, /* bitsize */
b34976b6 623 FALSE, /* pc_relative */
252b5132
RH		 624 0, /* bitpos */
625 complain_overflow_signed, /* complain_on_overflow */
dfe57ca0 626 0, /* special_function */
252b5132 627 "GPRELHIGH", /* name */
b34976b6 628 FALSE, /* partial_inplace */
252b5132
RH		 629 0xffff, /* src_mask */
630 0xffff, /* dst_mask */
b34976b6 631 FALSE), /* pcrel_offset */
252b5132
RH		 632
633 /* The low 16 bits of the displacement from GP to the target. */
634 HOWTO (R_ALPHA_GPRELLOW,
635 0, /* rightshift */
dfe57ca0 636 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 637 16, /* bitsize */
b34976b6 638 FALSE, /* pc_relative */
252b5132
RH		 639 0, /* bitpos */
640 complain_overflow_dont, /* complain_on_overflow */
dfe57ca0 641 0, /* special_function */
252b5132 642 "GPRELLOW", /* name */
b34976b6 643 FALSE, /* partial_inplace */
252b5132
RH		 644 0xffff, /* src_mask */
645 0xffff, /* dst_mask */
b34976b6 646 FALSE), /* pcrel_offset */
252b5132
RH		 647
648 /* A 16-bit displacement from the GP to the target. */
dfe57ca0 649 HOWTO (R_ALPHA_GPREL16,
252b5132 650 0, /* rightshift */
dfe57ca0 651 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 652 16, /* bitsize */
b34976b6 653 FALSE, /* pc_relative */
252b5132
RH		 654 0, /* bitpos */
655 complain_overflow_signed, /* complain_on_overflow */
656 0, /* special_function */
dfe57ca0 657 "GPREL16", /* name */
b34976b6 658 FALSE, /* partial_inplace */
252b5132
RH		 659 0xffff, /* src_mask */
660 0xffff, /* dst_mask */
b34976b6 661 FALSE), /* pcrel_offset */
252b5132 662
dfe57ca0
RH		 663 /* Skip 20 - 23; deprecated ECOFF relocs. */
664 SKIP_HOWTO (20),
665 SKIP_HOWTO (21),
666 SKIP_HOWTO (22),
667 SKIP_HOWTO (23),
252b5132 668
fe8bc63d 669 /* Misc ELF relocations. */
252b5132
RH		 670
671 /* A dynamic relocation to copy the target into our .dynbss section. */
672 /* Not generated, as all Alpha objects use PIC, so it is not needed. It
673 is present because every other ELF has one, but should not be used
674 because .dynbss is an ugly thing. */
675 HOWTO (R_ALPHA_COPY,
676 0,
677 0,
678 0,
b34976b6 679 FALSE,
252b5132
RH		 680 0,
681 complain_overflow_dont,
682 bfd_elf_generic_reloc,
683 "COPY",
b34976b6 684 FALSE,
252b5132
RH		 685 0,
686 0,
b34976b6 687 TRUE),
252b5132
RH		 688
689 /* A dynamic relocation for a .got entry. */
690 HOWTO (R_ALPHA_GLOB_DAT,
691 0,
692 0,
693 0,
b34976b6 694 FALSE,
252b5132
RH		 695 0,
696 complain_overflow_dont,
697 bfd_elf_generic_reloc,
698 "GLOB_DAT",
b34976b6 699 FALSE,
252b5132
RH		 700 0,
701 0,
b34976b6 702 TRUE),
252b5132
RH		 703
704 /* A dynamic relocation for a .plt entry. */
705 HOWTO (R_ALPHA_JMP_SLOT,
706 0,
707 0,
708 0,
b34976b6 709 FALSE,
252b5132
RH		 710 0,
711 complain_overflow_dont,
712 bfd_elf_generic_reloc,
713 "JMP_SLOT",
b34976b6 714 FALSE,
252b5132
RH		 715 0,
716 0,
b34976b6 717 TRUE),
252b5132
RH		 718
719 /* A dynamic relocation to add the base of the DSO to a 64-bit field. */
720 HOWTO (R_ALPHA_RELATIVE,
721 0,
722 0,
723 0,
b34976b6 724 FALSE,
252b5132
RH		 725 0,
726 complain_overflow_dont,
727 bfd_elf_generic_reloc,
728 "RELATIVE",
b34976b6 729 FALSE,
252b5132
RH		 730 0,
731 0,
b34976b6 732 TRUE),
7793f4d0
RH		 733
734 /* A 21 bit branch that adjusts for gp loads. */
735 HOWTO (R_ALPHA_BRSGP, /* type */
736 2, /* rightshift */
737 2, /* size (0 = byte, 1 = short, 2 = long) */
738 21, /* bitsize */
b34976b6 739 TRUE, /* pc_relative */
7793f4d0
RH		 740 0, /* bitpos */
741 complain_overflow_signed, /* complain_on_overflow */
742 0, /* special_function */
743 "BRSGP", /* name */
b34976b6 744 FALSE, /* partial_inplace */
7793f4d0
RH		 745 0x1fffff, /* src_mask */
746 0x1fffff, /* dst_mask */
b34976b6 747 TRUE), /* pcrel_offset */
3765b1be
RH		 748
749 /* Creates a tls_index for the symbol in the got. */
750 HOWTO (R_ALPHA_TLSGD, /* type */
751 0, /* rightshift */
752 1, /* size (0 = byte, 1 = short, 2 = long) */
753 16, /* bitsize */
b34976b6 754 FALSE, /* pc_relative */
3765b1be
RH		 755 0, /* bitpos */
756 complain_overflow_signed, /* complain_on_overflow */
757 0, /* special_function */
758 "TLSGD", /* name */
b34976b6 759 FALSE, /* partial_inplace */
3765b1be
RH		 760 0xffff, /* src_mask */
761 0xffff, /* dst_mask */
b34976b6 762 FALSE), /* pcrel_offset */
3765b1be
RH		 763
764 /* Creates a tls_index for the (current) module in the got. */
765 HOWTO (R_ALPHA_TLSLDM, /* type */
766 0, /* rightshift */
767 1, /* size (0 = byte, 1 = short, 2 = long) */
768 16, /* bitsize */
b34976b6 769 FALSE, /* pc_relative */
3765b1be
RH		 770 0, /* bitpos */
771 complain_overflow_signed, /* complain_on_overflow */
772 0, /* special_function */
773 "TLSLDM", /* name */
b34976b6 774 FALSE, /* partial_inplace */
3765b1be
RH		 775 0xffff, /* src_mask */
776 0xffff, /* dst_mask */
b34976b6 777 FALSE), /* pcrel_offset */
3765b1be
RH		 778
779 /* A dynamic relocation for a DTP module entry. */
780 HOWTO (R_ALPHA_DTPMOD64, /* type */
781 0, /* rightshift */
782 4, /* size (0 = byte, 1 = short, 2 = long) */
783 64, /* bitsize */
b34976b6 784 FALSE, /* pc_relative */
3765b1be
RH		 785 0, /* bitpos */
786 complain_overflow_bitfield, /* complain_on_overflow */
787 0, /* special_function */
788 "DTPMOD64", /* name */
b34976b6 789 FALSE, /* partial_inplace */
3765b1be
RH		 790 MINUS_ONE, /* src_mask */
791 MINUS_ONE, /* dst_mask */
b34976b6 792 FALSE), /* pcrel_offset */
3765b1be
RH		 793
794 /* Creates a 64-bit offset in the got for the displacement
795 from DTP to the target. */
796 HOWTO (R_ALPHA_GOTDTPREL, /* type */
797 0, /* rightshift */
798 1, /* size (0 = byte, 1 = short, 2 = long) */
799 16, /* bitsize */
b34976b6 800 FALSE, /* pc_relative */
3765b1be
RH		 801 0, /* bitpos */
802 complain_overflow_signed, /* complain_on_overflow */
803 0, /* special_function */
804 "GOTDTPREL", /* name */
b34976b6 805 FALSE, /* partial_inplace */
3765b1be
RH		 806 0xffff, /* src_mask */
807 0xffff, /* dst_mask */
b34976b6 808 FALSE), /* pcrel_offset */
3765b1be
RH		 809
810 /* A dynamic relocation for a displacement from DTP to the target. */
811 HOWTO (R_ALPHA_DTPREL64, /* type */
812 0, /* rightshift */
813 4, /* size (0 = byte, 1 = short, 2 = long) */
814 64, /* bitsize */
b34976b6 815 FALSE, /* pc_relative */
3765b1be
RH		 816 0, /* bitpos */
817 complain_overflow_bitfield, /* complain_on_overflow */
818 0, /* special_function */
819 "DTPREL64", /* name */
b34976b6 820 FALSE, /* partial_inplace */
3765b1be
RH		 821 MINUS_ONE, /* src_mask */
822 MINUS_ONE, /* dst_mask */
b34976b6 823 FALSE), /* pcrel_offset */
3765b1be
RH		 824
825 /* The high 16 bits of the displacement from DTP to the target. */
826 HOWTO (R_ALPHA_DTPRELHI, /* type */
827 0, /* rightshift */
828 1, /* size (0 = byte, 1 = short, 2 = long) */
829 16, /* bitsize */
b34976b6 830 FALSE, /* pc_relative */
3765b1be
RH		 831 0, /* bitpos */
832 complain_overflow_signed, /* complain_on_overflow */
833 0, /* special_function */
834 "DTPRELHI", /* name */
b34976b6 835 FALSE, /* partial_inplace */
3765b1be
RH		 836 0xffff, /* src_mask */
837 0xffff, /* dst_mask */
b34976b6 838 FALSE), /* pcrel_offset */
3765b1be
RH		 839
840 /* The low 16 bits of the displacement from DTP to the target. */
841 HOWTO (R_ALPHA_DTPRELLO, /* type */
842 0, /* rightshift */
843 1, /* size (0 = byte, 1 = short, 2 = long) */
844 16, /* bitsize */
b34976b6 845 FALSE, /* pc_relative */
3765b1be
RH		 846 0, /* bitpos */
847 complain_overflow_dont, /* complain_on_overflow */
848 0, /* special_function */
849 "DTPRELLO", /* name */
b34976b6 850 FALSE, /* partial_inplace */
3765b1be
RH		 851 0xffff, /* src_mask */
852 0xffff, /* dst_mask */
b34976b6 853 FALSE), /* pcrel_offset */
3765b1be
RH		 854
855 /* A 16-bit displacement from DTP to the target. */
856 HOWTO (R_ALPHA_DTPREL16, /* type */
857 0, /* rightshift */
858 1, /* size (0 = byte, 1 = short, 2 = long) */
859 16, /* bitsize */
b34976b6 860 FALSE, /* pc_relative */
3765b1be
RH		 861 0, /* bitpos */
862 complain_overflow_signed, /* complain_on_overflow */
863 0, /* special_function */
864 "DTPREL16", /* name */
b34976b6 865 FALSE, /* partial_inplace */
3765b1be
RH		 866 0xffff, /* src_mask */
867 0xffff, /* dst_mask */
b34976b6 868 FALSE), /* pcrel_offset */
3765b1be
RH		 869
870 /* Creates a 64-bit offset in the got for the displacement
871 from TP to the target. */
872 HOWTO (R_ALPHA_GOTTPREL, /* type */
873 0, /* rightshift */
874 1, /* size (0 = byte, 1 = short, 2 = long) */
875 16, /* bitsize */
b34976b6 876 FALSE, /* pc_relative */
3765b1be
RH		 877 0, /* bitpos */
878 complain_overflow_signed, /* complain_on_overflow */
879 0, /* special_function */
880 "GOTTPREL", /* name */
b34976b6 881 FALSE, /* partial_inplace */
3765b1be
RH		 882 0xffff, /* src_mask */
883 0xffff, /* dst_mask */
b34976b6 884 FALSE), /* pcrel_offset */
3765b1be
RH		 885
886 /* A dynamic relocation for a displacement from TP to the target. */
887 HOWTO (R_ALPHA_TPREL64, /* type */
888 0, /* rightshift */
889 4, /* size (0 = byte, 1 = short, 2 = long) */
890 64, /* bitsize */
b34976b6 891 FALSE, /* pc_relative */
3765b1be
RH		 892 0, /* bitpos */
893 complain_overflow_bitfield, /* complain_on_overflow */
894 0, /* special_function */
895 "TPREL64", /* name */
b34976b6 896 FALSE, /* partial_inplace */
3765b1be
RH		 897 MINUS_ONE, /* src_mask */
898 MINUS_ONE, /* dst_mask */
b34976b6 899 FALSE), /* pcrel_offset */
3765b1be
RH		 900
901 /* The high 16 bits of the displacement from TP to the target. */
902 HOWTO (R_ALPHA_TPRELHI, /* type */
903 0, /* rightshift */
904 1, /* size (0 = byte, 1 = short, 2 = long) */
905 16, /* bitsize */
b34976b6 906 FALSE, /* pc_relative */
3765b1be
RH		 907 0, /* bitpos */
908 complain_overflow_signed, /* complain_on_overflow */
909 0, /* special_function */
910 "TPRELHI", /* name */
b34976b6 911 FALSE, /* partial_inplace */
3765b1be
RH		 912 0xffff, /* src_mask */
913 0xffff, /* dst_mask */
b34976b6 914 FALSE), /* pcrel_offset */
3765b1be
RH		 915
916 /* The low 16 bits of the displacement from TP to the target. */
917 HOWTO (R_ALPHA_TPRELLO, /* type */
918 0, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
b34976b6 921 FALSE, /* pc_relative */
3765b1be
RH		 922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
924 0, /* special_function */
925 "TPRELLO", /* name */
b34976b6 926 FALSE, /* partial_inplace */
3765b1be
RH		 927 0xffff, /* src_mask */
928 0xffff, /* dst_mask */
b34976b6 929 FALSE), /* pcrel_offset */
3765b1be
RH		 930
931 /* A 16-bit displacement from TP to the target. */
932 HOWTO (R_ALPHA_TPREL16, /* type */
933 0, /* rightshift */
934 1, /* size (0 = byte, 1 = short, 2 = long) */
935 16, /* bitsize */
b34976b6 936 FALSE, /* pc_relative */
3765b1be
RH		 937 0, /* bitpos */
938 complain_overflow_signed, /* complain_on_overflow */
939 0, /* special_function */
940 "TPREL16", /* name */
b34976b6 941 FALSE, /* partial_inplace */
3765b1be
RH		 942 0xffff, /* src_mask */
943 0xffff, /* dst_mask */
b34976b6 944 FALSE), /* pcrel_offset */
252b5132
RH		 945};
946
947/* A relocation function which doesn't do anything. */
948
949static bfd_reloc_status_type
950elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
56fc028e 951 bfd *abfd ATTRIBUTE_UNUSED;
252b5132 952 arelent *reloc;
56fc028e
AJ		 953 asymbol *sym ATTRIBUTE_UNUSED;
954 PTR data ATTRIBUTE_UNUSED;
252b5132
RH		 955 asection *sec;
956 bfd *output_bfd;
56fc028e 957 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 958{
959 if (output_bfd)
960 reloc->address += sec->output_offset;
961 return bfd_reloc_ok;
962}
963
964/* A relocation function used for an unsupported reloc. */
965
966static bfd_reloc_status_type
967elf64_alpha_reloc_bad (abfd, reloc, sym, data, sec, output_bfd, error_message)
56fc028e 968 bfd *abfd ATTRIBUTE_UNUSED;
252b5132 969 arelent *reloc;
56fc028e
AJ		 970 asymbol *sym ATTRIBUTE_UNUSED;
971 PTR data ATTRIBUTE_UNUSED;
252b5132
RH		 972 asection *sec;
973 bfd *output_bfd;
56fc028e 974 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 975{
976 if (output_bfd)
977 reloc->address += sec->output_offset;
978 return bfd_reloc_notsupported;
979}
980
981/* Do the work of the GPDISP relocation. */
982
983static bfd_reloc_status_type
984elf64_alpha_do_reloc_gpdisp (abfd, gpdisp, p_ldah, p_lda)
985 bfd *abfd;
986 bfd_vma gpdisp;
987 bfd_byte *p_ldah;
988 bfd_byte *p_lda;
989{
990 bfd_reloc_status_type ret = bfd_reloc_ok;
991 bfd_vma addend;
992 unsigned long i_ldah, i_lda;
993
994 i_ldah = bfd_get_32 (abfd, p_ldah);
995 i_lda = bfd_get_32 (abfd, p_lda);
996
997 /* Complain if the instructions are not correct. */
998 if (((i_ldah >> 26) & 0x3f) != 0x09
999 || ((i_lda >> 26) & 0x3f) != 0x08)
1000 ret = bfd_reloc_dangerous;
1001
1002 /* Extract the user-supplied offset, mirroring the sign extensions
1003 that the instructions perform. */
1004 addend = ((i_ldah & 0xffff) << 16) | (i_lda & 0xffff);
1005 addend = (addend ^ 0x80008000) - 0x80008000;
1006
1007 gpdisp += addend;
1008
1009 if ((bfd_signed_vma) gpdisp < -(bfd_signed_vma) 0x80000000
1010 || (bfd_signed_vma) gpdisp >= (bfd_signed_vma) 0x7fff8000)
1011 ret = bfd_reloc_overflow;
1012
1013 /* compensate for the sign extension again. */
1014 i_ldah = ((i_ldah & 0xffff0000)
1015 | (((gpdisp >> 16) + ((gpdisp >> 15) & 1)) & 0xffff));
1016 i_lda = (i_lda & 0xffff0000) | (gpdisp & 0xffff);
1017
dc810e39
AM		 1018 bfd_put_32 (abfd, (bfd_vma) i_ldah, p_ldah);
1019 bfd_put_32 (abfd, (bfd_vma) i_lda, p_lda);
252b5132
RH		 1020
1021 return ret;
1022}
1023
1024/* The special function for the GPDISP reloc. */
1025
1026static bfd_reloc_status_type
1027elf64_alpha_reloc_gpdisp (abfd, reloc_entry, sym, data, input_section,
1028 output_bfd, err_msg)
1029 bfd *abfd;
1030 arelent *reloc_entry;
56fc028e 1031 asymbol *sym ATTRIBUTE_UNUSED;
252b5132
RH		 1032 PTR data;
1033 asection *input_section;
1034 bfd *output_bfd;
1035 char **err_msg;
1036{
1037 bfd_reloc_status_type ret;
1038 bfd_vma gp, relocation;
07515404 1039 bfd_vma high_address;
252b5132
RH		 1040 bfd_byte *p_ldah, *p_lda;
1041
1042 /* Don't do anything if we're not doing a final link. */
1043 if (output_bfd)
1044 {
1045 reloc_entry->address += input_section->output_offset;
1046 return bfd_reloc_ok;
1047 }
1048
07515404
AM		 1049 high_address = bfd_get_section_limit (abfd, input_section);
1050 if (reloc_entry->address > high_address
1051 || reloc_entry->address + reloc_entry->addend > high_address)
252b5132
RH		 1052 return bfd_reloc_outofrange;
1053
1054 /* The gp used in the portion of the output object to which this
1055 input object belongs is cached on the input bfd. */
1056 gp = _bfd_get_gp_value (abfd);
1057
1058 relocation = (input_section->output_section->vma
1059 + input_section->output_offset
1060 + reloc_entry->address);
1061
1062 p_ldah = (bfd_byte *) data + reloc_entry->address;
1063 p_lda = p_ldah + reloc_entry->addend;
1064
1065 ret = elf64_alpha_do_reloc_gpdisp (abfd, gp - relocation, p_ldah, p_lda);
1066
1067 /* Complain if the instructions are not correct. */
1068 if (ret == bfd_reloc_dangerous)
1069 *err_msg = _("GPDISP relocation did not find ldah and lda instructions");
1070
1071 return ret;
1072}
1073
1074/* A mapping from BFD reloc types to Alpha ELF reloc types. */
1075
1076struct elf_reloc_map
1077{
1078 bfd_reloc_code_real_type bfd_reloc_val;
1079 int elf_reloc_val;
1080};
1081
1082static const struct elf_reloc_map elf64_alpha_reloc_map[] =
1083{
dfe57ca0
RH		 1084 {BFD_RELOC_NONE, R_ALPHA_NONE},
1085 {BFD_RELOC_32, R_ALPHA_REFLONG},
1086 {BFD_RELOC_64, R_ALPHA_REFQUAD},
1087 {BFD_RELOC_CTOR, R_ALPHA_REFQUAD},
1088 {BFD_RELOC_GPREL32, R_ALPHA_GPREL32},
1089 {BFD_RELOC_ALPHA_ELF_LITERAL, R_ALPHA_LITERAL},
1090 {BFD_RELOC_ALPHA_LITUSE, R_ALPHA_LITUSE},
1091 {BFD_RELOC_ALPHA_GPDISP, R_ALPHA_GPDISP},
1092 {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR},
1093 {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT},
1094 {BFD_RELOC_16_PCREL, R_ALPHA_SREL16},
1095 {BFD_RELOC_32_PCREL, R_ALPHA_SREL32},
1096 {BFD_RELOC_64_PCREL, R_ALPHA_SREL64},
1097 {BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH},
1098 {BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW},
1099 {BFD_RELOC_GPREL16, R_ALPHA_GPREL16},
7793f4d0 1100 {BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP},
3765b1be
RH		 1101 {BFD_RELOC_ALPHA_TLSGD, R_ALPHA_TLSGD},
1102 {BFD_RELOC_ALPHA_TLSLDM, R_ALPHA_TLSLDM},
1103 {BFD_RELOC_ALPHA_DTPMOD64, R_ALPHA_DTPMOD64},
1104 {BFD_RELOC_ALPHA_GOTDTPREL16, R_ALPHA_GOTDTPREL},
1105 {BFD_RELOC_ALPHA_DTPREL64, R_ALPHA_DTPREL64},
1106 {BFD_RELOC_ALPHA_DTPREL_HI16, R_ALPHA_DTPRELHI},
1107 {BFD_RELOC_ALPHA_DTPREL_LO16, R_ALPHA_DTPRELLO},
1108 {BFD_RELOC_ALPHA_DTPREL16, R_ALPHA_DTPREL16},
1109 {BFD_RELOC_ALPHA_GOTTPREL16, R_ALPHA_GOTTPREL},
1110 {BFD_RELOC_ALPHA_TPREL64, R_ALPHA_TPREL64},
1111 {BFD_RELOC_ALPHA_TPREL_HI16, R_ALPHA_TPRELHI},
1112 {BFD_RELOC_ALPHA_TPREL_LO16, R_ALPHA_TPRELLO},
1113 {BFD_RELOC_ALPHA_TPREL16, R_ALPHA_TPREL16},
252b5132
RH		 1114};
1115
1116/* Given a BFD reloc type, return a HOWTO structure. */
1117
1118static reloc_howto_type *
1119elf64_alpha_bfd_reloc_type_lookup (abfd, code)
56fc028e 1120 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 1121 bfd_reloc_code_real_type code;
1122{
1123 const struct elf_reloc_map *i, *e;
1124 i = e = elf64_alpha_reloc_map;
1125 e += sizeof (elf64_alpha_reloc_map) / sizeof (struct elf_reloc_map);
1126 for (; i != e; ++i)
1127 {
1128 if (i->bfd_reloc_val == code)
1129 return &elf64_alpha_howto_table[i->elf_reloc_val];
1130 }
1131 return 0;
1132}
1133
1134/* Given an Alpha ELF reloc type, fill in an arelent structure. */
1135
1136static void
1137elf64_alpha_info_to_howto (abfd, cache_ptr, dst)
56fc028e 1138 bfd *abfd ATTRIBUTE_UNUSED;
252b5132 1139 arelent *cache_ptr;
947216bf 1140 Elf_Internal_Rela *dst;
252b5132
RH		 1141{
1142 unsigned r_type;
1143
1144 r_type = ELF64_R_TYPE(dst->r_info);
1145 BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max);
1146 cache_ptr->howto = &elf64_alpha_howto_table[r_type];
1147}
3765b1be
RH		 1148
1149/* These two relocations create a two-word entry in the got. */
1150#define alpha_got_entry_size(r_type) \
1151 (r_type == R_ALPHA_TLSGD || r_type == R_ALPHA_TLSLDM ? 16 : 8)
9e756d64
RH		 1152
1153/* This is PT_TLS segment p_vaddr. */
e1918d23
AM		 1154#define alpha_get_dtprel_base(info) \
1155 (elf_hash_table (info)->tls_sec->vma)
9e756d64
RH		 1156
1157/* Main program TLS (whose template starts at PT_TLS p_vaddr)
1158 is assigned offset round(16, PT_TLS p_align). */
e1918d23
AM		 1159#define alpha_get_tprel_base(info) \
1160 (elf_hash_table (info)->tls_sec->vma \
1161 - align_power ((bfd_vma) 16, \
1162 elf_hash_table (info)->tls_sec->alignment_power))
252b5132 1163\f
fe8bc63d 1164/* These functions do relaxation for Alpha ELF.
252b5132
RH		 1165
1166 Currently I'm only handling what I can do with existing compiler
1167 and assembler support, which means no instructions are removed,
1168 though some may be nopped. At this time GCC does not emit enough
1169 information to do all of the relaxing that is possible. It will
1170 take some not small amount of work for that to happen.
1171
1172 There are a couple of interesting papers that I once read on this
1173 subject, that I cannot find references to at the moment, that
1174 related to Alpha in particular. They are by David Wall, then of
1175 DEC WRL. */
1176
1177#define OP_LDA 0x08
1178#define OP_LDAH 0x09
1179#define INSN_JSR 0x68004000
1180#define INSN_JSR_MASK 0xfc00c000
1181#define OP_LDQ 0x29
1182#define OP_BR 0x30
1183#define OP_BSR 0x34
f304919d 1184#define INSN_UNOP 0x2ffe0000
9e756d64
RH		 1185#define INSN_ADDQ 0x40000400
1186#define INSN_RDUNIQ 0x0000009e
252b5132
RH		 1187
1188struct alpha_relax_info
1189{
1190 bfd *abfd;
1191 asection *sec;
1192 bfd_byte *contents;
9e756d64 1193 Elf_Internal_Shdr *symtab_hdr;
252b5132
RH		 1194 Elf_Internal_Rela *relocs, *relend;
1195 struct bfd_link_info *link_info;
252b5132
RH		 1196 bfd_vma gp;
1197 bfd *gotobj;
1198 asection *tsec;
1199 struct alpha_elf_link_hash_entry *h;
9e756d64 1200 struct alpha_elf_got_entry **first_gotent;
252b5132 1201 struct alpha_elf_got_entry *gotent;
b34976b6
AM		 1202 bfd_boolean changed_contents;
1203 bfd_boolean changed_relocs;
252b5132
RH		 1204 unsigned char other;
1205};
1206
b34976b6 1207static bfd_boolean elf64_alpha_relax_with_lituse
fe8bc63d 1208 PARAMS((struct alpha_relax_info *info, bfd_vma symval,
252b5132 1209 Elf_Internal_Rela *irel));
252b5132
RH		 1210static bfd_vma elf64_alpha_relax_opt_call
1211 PARAMS((struct alpha_relax_info *info, bfd_vma symval));
b34976b6 1212static bfd_boolean elf64_alpha_relax_got_load
9e756d64
RH		 1213 PARAMS((struct alpha_relax_info *info, bfd_vma symval,
1214 Elf_Internal_Rela *irel, unsigned long));
b34976b6 1215static bfd_boolean elf64_alpha_relax_gprelhilo
9e756d64 1216 PARAMS((struct alpha_relax_info *info, bfd_vma symval,
b34976b6
AM		 1217 Elf_Internal_Rela *irel, bfd_boolean));
1218static bfd_boolean elf64_alpha_relax_tls_get_addr
9e756d64 1219 PARAMS((struct alpha_relax_info *info, bfd_vma symval,
b34976b6 1220 Elf_Internal_Rela *irel, bfd_boolean));
b34976b6 1221static bfd_boolean elf64_alpha_relax_section
252b5132 1222 PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
b34976b6 1223 bfd_boolean *again));
252b5132
RH		 1224
1225static Elf_Internal_Rela *
1226elf64_alpha_find_reloc_at_ofs (rel, relend, offset, type)
1227 Elf_Internal_Rela *rel, *relend;
1228 bfd_vma offset;
1229 int type;
1230{
1231 while (rel < relend)
1232 {
52b9d213
AM		 1233 if (rel->r_offset == offset
1234 && ELF64_R_TYPE (rel->r_info) == (unsigned int) type)
252b5132
RH		 1235 return rel;
1236 ++rel;
1237 }
1238 return NULL;
1239}
1240
b34976b6 1241static bfd_boolean
9e756d64 1242elf64_alpha_relax_with_lituse (info, symval, irel)
252b5132
RH		 1243 struct alpha_relax_info *info;
1244 bfd_vma symval;
9e756d64 1245 Elf_Internal_Rela *irel;
252b5132 1246{
9e756d64 1247 Elf_Internal_Rela *urel, *irelend = info->relend;
252b5132
RH		 1248 int flags, count, i;
1249 bfd_signed_vma disp;
b34976b6
AM		 1250 bfd_boolean fits16;
1251 bfd_boolean fits32;
1252 bfd_boolean lit_reused = FALSE;
1253 bfd_boolean all_optimized = TRUE;
252b5132
RH		 1254 unsigned int lit_insn;
1255
1256 lit_insn = bfd_get_32 (info->abfd, info->contents + irel->r_offset);
1257 if (lit_insn >> 26 != OP_LDQ)
1258 {
1259 ((*_bfd_error_handler)
d003868e
AM		 1260 ("%B: %A+0x%lx: warning: LITERAL relocation against unexpected insn",
1261 info->abfd, info->sec,
8f615d07 1262 (unsigned long) irel->r_offset));
b34976b6 1263 return TRUE;
252b5132
RH		 1264 }
1265
9e756d64
RH		 1266 /* Can't relax dynamic symbols. */
1267 if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info))
b34976b6 1268 return TRUE;
9e756d64 1269
252b5132
RH		 1270 /* Summarize how this particular LITERAL is used. */
1271 for (urel = irel+1, flags = count = 0; urel < irelend; ++urel, ++count)
1272 {
1273 if (ELF64_R_TYPE (urel->r_info) != R_ALPHA_LITUSE)
1274 break;
1e738b87 1275 if (urel->r_addend <= 3)
252b5132
RH		 1276 flags |= 1 << urel->r_addend;
1277 }
1278
fe8bc63d 1279 /* A little preparation for the loop... */
252b5132 1280 disp = symval - info->gp;
252b5132
RH		 1281
1282 for (urel = irel+1, i = 0; i < count; ++i, ++urel)
1283 {
1284 unsigned int insn;
ffcb7aff
NC		 1285 int insn_disp;
1286 bfd_signed_vma xdisp;
1287
252b5132
RH		 1288 insn = bfd_get_32 (info->abfd, info->contents + urel->r_offset);
1289
1290 switch (urel->r_addend)
1291 {
9e756d64
RH		 1292 case LITUSE_ALPHA_ADDR:
1293 default:
252b5132
RH		 1294 /* This type is really just a placeholder to note that all
1295 uses cannot be optimized, but to still allow some. */
b34976b6 1296 all_optimized = FALSE;
252b5132
RH		 1297 break;
1298
9e756d64 1299 case LITUSE_ALPHA_BASE:
252b5132 1300 /* We can always optimize 16-bit displacements. */
ffcb7aff
NC		 1301
1302 /* Extract the displacement from the instruction, sign-extending
1303 it if necessary, then test whether it is within 16 or 32 bits
1304 displacement from GP. */
1305 insn_disp = insn & 0x0000ffff;
9e756d64
RH		 1306 if (insn_disp & 0x8000)
1307 insn_disp |= ~0xffff; /* Negative: sign-extend. */
ffcb7aff
NC		 1308
1309 xdisp = disp + insn_disp;
9e756d64
RH		 1310 fits16 = (xdisp >= - (bfd_signed_vma) 0x8000 && xdisp < 0x8000);
1311 fits32 = (xdisp >= - (bfd_signed_vma) 0x80000000
1312 && xdisp < 0x7fff8000);
ffcb7aff 1313
252b5132
RH		 1314 if (fits16)
1315 {
ffcb7aff 1316 /* Take the op code and dest from this insn, take the base
fe8bc63d 1317 register from the literal insn. Leave the offset alone. */
ffcb7aff 1318 insn = (insn & 0xffe0ffff) | (lit_insn & 0x001f0000);
252b5132 1319 urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
dfe57ca0 1320 R_ALPHA_GPREL16);
252b5132 1321 urel->r_addend = irel->r_addend;
b34976b6 1322 info->changed_relocs = TRUE;
252b5132 1323
dc810e39
AM		 1324 bfd_put_32 (info->abfd, (bfd_vma) insn,
1325 info->contents + urel->r_offset);
b34976b6 1326 info->changed_contents = TRUE;
252b5132
RH		 1327 }
1328
1329 /* If all mem+byte, we can optimize 32-bit mem displacements. */
1330 else if (fits32 && !(flags & ~6))
1331 {
ffcb7aff 1332 /* FIXME: sanity check that lit insn Ra is mem insn Rb. */
252b5132
RH		 1333
1334 irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
1335 R_ALPHA_GPRELHIGH);
1336 lit_insn = (OP_LDAH << 26) | (lit_insn & 0x03ff0000);
dc810e39 1337 bfd_put_32 (info->abfd, (bfd_vma) lit_insn,
252b5132 1338 info->contents + irel->r_offset);
b34976b6
AM		 1339 lit_reused = TRUE;
1340 info->changed_contents = TRUE;
252b5132
RH		 1341
1342 urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
1343 R_ALPHA_GPRELLOW);
1344 urel->r_addend = irel->r_addend;
b34976b6 1345 info->changed_relocs = TRUE;
252b5132
RH		 1346 }
1347 else
b34976b6 1348 all_optimized = FALSE;
252b5132
RH		 1349 break;
1350
9e756d64 1351 case LITUSE_ALPHA_BYTOFF:
252b5132
RH		 1352 /* We can always optimize byte instructions. */
1353
1354 /* FIXME: sanity check the insn for byte op. Check that the
1355 literal dest reg is indeed Rb in the byte insn. */
1356
dc810e39
AM		 1357 insn &= ~ (unsigned) 0x001ff000;
1358 insn |= ((symval & 7) << 13) | 0x1000;
252b5132
RH		 1359
1360 urel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1361 urel->r_addend = 0;
b34976b6 1362 info->changed_relocs = TRUE;
252b5132 1363
dc810e39
AM		 1364 bfd_put_32 (info->abfd, (bfd_vma) insn,
1365 info->contents + urel->r_offset);
b34976b6 1366 info->changed_contents = TRUE;
252b5132
RH		 1367 break;
1368
9e756d64
RH		 1369 case LITUSE_ALPHA_JSR:
1370 case LITUSE_ALPHA_TLSGD:
1371 case LITUSE_ALPHA_TLSLDM:
252b5132 1372 {
f44f99a5 1373 bfd_vma optdest, org;
252b5132
RH		 1374 bfd_signed_vma odisp;
1375
f44f99a5
RH		 1376 /* If not zero, place to jump without needing pv. */
1377 optdest = elf64_alpha_relax_opt_call (info, symval);
1378 org = (info->sec->output_section->vma
1379 + info->sec->output_offset
1380 + urel->r_offset + 4);
252b5132 1381 odisp = (optdest ? optdest : symval) - org;
f44f99a5 1382
252b5132
RH		 1383 if (odisp >= -0x400000 && odisp < 0x400000)
1384 {
1385 Elf_Internal_Rela *xrel;
1386
fe8bc63d 1387 /* Preserve branch prediction call stack when possible. */
252b5132
RH		 1388 if ((insn & INSN_JSR_MASK) == INSN_JSR)
1389 insn = (OP_BSR << 26) | (insn & 0x03e00000);
1390 else
1391 insn = (OP_BR << 26) | (insn & 0x03e00000);
fe8bc63d 1392
252b5132
RH		 1393 urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
1394 R_ALPHA_BRADDR);
1395 urel->r_addend = irel->r_addend;
1396
1397 if (optdest)
1398 urel->r_addend += optdest - symval;
1399 else
b34976b6 1400 all_optimized = FALSE;
252b5132 1401
dc810e39
AM		 1402 bfd_put_32 (info->abfd, (bfd_vma) insn,
1403 info->contents + urel->r_offset);
252b5132
RH		 1404
1405 /* Kill any HINT reloc that might exist for this insn. */
1406 xrel = (elf64_alpha_find_reloc_at_ofs
fe8bc63d 1407 (info->relocs, info->relend, urel->r_offset,
252b5132
RH		 1408 R_ALPHA_HINT));
1409 if (xrel)
1410 xrel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1411
b34976b6
AM		 1412 info->changed_contents = TRUE;
1413 info->changed_relocs = TRUE;
252b5132
RH		 1414 }
1415 else
b34976b6 1416 all_optimized = FALSE;
252b5132 1417
1cd6895c
RH		 1418 /* Even if the target is not in range for a direct branch,
1419 if we share a GP, we can eliminate the gp reload. */
1420 if (optdest)
1421 {
1422 Elf_Internal_Rela *gpdisp
1423 = (elf64_alpha_find_reloc_at_ofs
9e756d64
RH		 1424 (info->relocs, irelend, urel->r_offset + 4,
1425 R_ALPHA_GPDISP));
1cd6895c
RH		 1426 if (gpdisp)
1427 {
cedb70c5 1428 bfd_byte *p_ldah = info->contents + gpdisp->r_offset;
1cd6895c
RH		 1429 bfd_byte *p_lda = p_ldah + gpdisp->r_addend;
1430 unsigned int ldah = bfd_get_32 (info->abfd, p_ldah);
1431 unsigned int lda = bfd_get_32 (info->abfd, p_lda);
1432
1433 /* Verify that the instruction is "ldah $29,0($26)".
1434 Consider a function that ends in a noreturn call,
1435 and that the next function begins with an ldgp,
1436 and that by accident there is no padding between.
1437 In that case the insn would use $27 as the base. */
1438 if (ldah == 0x27ba0000 && lda == 0x23bd0000)
1439 {
dc810e39
AM		 1440 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_ldah);
1441 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_lda);
1cd6895c
RH		 1442
1443 gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
b34976b6
AM		 1444 info->changed_contents = TRUE;
1445 info->changed_relocs = TRUE;
1cd6895c
RH		 1446 }
1447 }
1448 }
252b5132
RH		 1449 }
1450 break;
1451 }
1452 }
1453
1454 /* If all cases were optimized, we can reduce the use count on this
1455 got entry by one, possibly eliminating it. */
1456 if (all_optimized)
1457 {
3765b1be
RH		 1458 if (--info->gotent->use_count == 0)
1459 {
9e756d64
RH		 1460 int sz = alpha_got_entry_size (R_ALPHA_LITERAL);
1461 alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
3765b1be 1462 if (!info->h)
9e756d64 1463 alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
3765b1be 1464 }
252b5132
RH		 1465
1466 /* If the literal instruction is no longer needed (it may have been
3765b1be
RH		 1467 reused. We can eliminate it. */
1468 /* ??? For now, I don't want to deal with compacting the section,
252b5132
RH		 1469 so just nop it out. */
1470 if (!lit_reused)
1471 {
1472 irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
b34976b6 1473 info->changed_relocs = TRUE;
252b5132 1474
dc810e39
AM		 1475 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP,
1476 info->contents + irel->r_offset);
b34976b6 1477 info->changed_contents = TRUE;
252b5132
RH		 1478 }
1479 }
1480
b34976b6 1481 return TRUE;
252b5132
RH		 1482}
1483
1484static bfd_vma
1485elf64_alpha_relax_opt_call (info, symval)
1486 struct alpha_relax_info *info;
1487 bfd_vma symval;
1488{
1489 /* If the function has the same gp, and we can identify that the
1490 function does not use its function pointer, we can eliminate the
1491 address load. */
1492
1493 /* If the symbol is marked NOPV, we are being told the function never
1494 needs its procedure value. */
c810873d 1495 if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_NOPV)
252b5132
RH		 1496 return symval;
1497
1498 /* If the symbol is marked STD_GP, we are being told the function does
fe8bc63d 1499 a normal ldgp in the first two words. */
c810873d 1500 else if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_STD_GPLOAD)
252b5132
RH		 1501 ;
1502
1503 /* Otherwise, we may be able to identify a GP load in the first two
1504 words, which we can then skip. */
fe8bc63d 1505 else
252b5132
RH		 1506 {
1507 Elf_Internal_Rela *tsec_relocs, *tsec_relend, *tsec_free, *gpdisp;
1508 bfd_vma ofs;
1509
fe8bc63d 1510 /* Load the relocations from the section that the target symbol is in. */
252b5132
RH		 1511 if (info->sec == info->tsec)
1512 {
1513 tsec_relocs = info->relocs;
1514 tsec_relend = info->relend;
1515 tsec_free = NULL;
1516 }
1517 else
1518 {
45d6a902 1519 tsec_relocs = (_bfd_elf_link_read_relocs
252b5132
RH		 1520 (info->abfd, info->tsec, (PTR) NULL,
1521 (Elf_Internal_Rela *) NULL,
1522 info->link_info->keep_memory));
1523 if (tsec_relocs == NULL)
1524 return 0;
1525 tsec_relend = tsec_relocs + info->tsec->reloc_count;
1526 tsec_free = (info->link_info->keep_memory ? NULL : tsec_relocs);
1527 }
1528
1529 /* Recover the symbol's offset within the section. */
1530 ofs = (symval - info->tsec->output_section->vma
1531 - info->tsec->output_offset);
fe8bc63d 1532
252b5132
RH		 1533 /* Look for a GPDISP reloc. */
1534 gpdisp = (elf64_alpha_find_reloc_at_ofs
1535 (tsec_relocs, tsec_relend, ofs, R_ALPHA_GPDISP));
1536
1537 if (!gpdisp || gpdisp->r_addend != 4)
1538 {
1539 if (tsec_free)
1540 free (tsec_free);
1541 return 0;
1542 }
1543 if (tsec_free)
1544 free (tsec_free);
1545 }
1546
fe8bc63d 1547 /* We've now determined that we can skip an initial gp load. Verify
252b5132
RH		 1548 that the call and the target use the same gp. */
1549 if (info->link_info->hash->creator != info->tsec->owner->xvec
1550 || info->gotobj != alpha_elf_tdata (info->tsec->owner)->gotobj)
1551 return 0;
1552
1553 return symval + 8;
1554}
1555
b34976b6 1556static bfd_boolean
9e756d64 1557elf64_alpha_relax_got_load (info, symval, irel, r_type)
252b5132
RH		 1558 struct alpha_relax_info *info;
1559 bfd_vma symval;
1560 Elf_Internal_Rela *irel;
9e756d64 1561 unsigned long r_type;
252b5132
RH		 1562{
1563 unsigned int insn;
1564 bfd_signed_vma disp;
1565
1566 /* Get the instruction. */
1567 insn = bfd_get_32 (info->abfd, info->contents + irel->r_offset);
1568
1569 if (insn >> 26 != OP_LDQ)
1570 {
9e756d64 1571 reloc_howto_type *howto = elf64_alpha_howto_table + r_type;
252b5132 1572 ((*_bfd_error_handler)
d003868e
AM		 1573 ("%B: %A+0x%lx: warning: %s relocation against unexpected insn",
1574 info->abfd, info->sec,
9e756d64 1575 (unsigned long) irel->r_offset, howto->name));
b34976b6 1576 return TRUE;
252b5132
RH		 1577 }
1578
9e756d64
RH		 1579 /* Can't relax dynamic symbols. */
1580 if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info))
b34976b6 1581 return TRUE;
252b5132 1582
9e756d64
RH		 1583 /* Can't use local-exec relocations in shared libraries. */
1584 if (r_type == R_ALPHA_GOTTPREL && info->link_info->shared)
b34976b6 1585 return TRUE;
252b5132 1586
9e756d64
RH		 1587 if (r_type == R_ALPHA_LITERAL)
1588 disp = symval - info->gp;
1589 else
1590 {
1591 bfd_vma dtp_base, tp_base;
1592
e1918d23
AM		 1593 BFD_ASSERT (elf_hash_table (info->link_info)->tls_sec != NULL);
1594 dtp_base = alpha_get_dtprel_base (info->link_info);
1595 tp_base = alpha_get_tprel_base (info->link_info);
9e756d64
RH		 1596 disp = symval - (r_type == R_ALPHA_GOTDTPREL ? dtp_base : tp_base);
1597 }
252b5132 1598
9e756d64 1599 if (disp < -0x8000 || disp >= 0x8000)
b34976b6 1600 return TRUE;
9e756d64
RH		 1601
1602 /* Exchange LDQ for LDA. In the case of the TLS relocs, we're loading
1603 a constant, so force the base register to be $31. */
1604 if (r_type == R_ALPHA_LITERAL)
1605 insn = (OP_LDA << 26) | (insn & 0x03ff0000);
1606 else
1607 insn = (OP_LDA << 26) | (insn & (31 << 21)) | (31 << 16);
dc810e39 1608 bfd_put_32 (info->abfd, (bfd_vma) insn, info->contents + irel->r_offset);
b34976b6 1609 info->changed_contents = TRUE;
cedb70c5 1610
1bbc9cec
RH		 1611 /* Reduce the use count on this got entry by one, possibly
1612 eliminating it. */
1613 if (--info->gotent->use_count == 0)
1614 {
1615 int sz = alpha_got_entry_size (r_type);
1616 alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
1617 if (!info->h)
1618 alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
1619 }
1620
1621 /* Smash the existing GOT relocation for its 16-bit immediate pair. */
9e756d64
RH		 1622 switch (r_type)
1623 {
1624 case R_ALPHA_LITERAL:
1625 r_type = R_ALPHA_GPREL16;
1626 break;
1627 case R_ALPHA_GOTDTPREL:
1628 r_type = R_ALPHA_DTPREL16;
1629 break;
1630 case R_ALPHA_GOTTPREL:
1631 r_type = R_ALPHA_TPREL16;
1632 break;
1633 default:
1634 BFD_ASSERT (0);
b34976b6 1635 return FALSE;
9e756d64 1636 }
252b5132 1637
9e756d64 1638 irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), r_type);
b34976b6 1639 info->changed_relocs = TRUE;
252b5132 1640
252b5132
RH		 1641 /* ??? Search forward through this basic block looking for insns
1642 that use the target register. Stop after an insn modifying the
1643 register is seen, or after a branch or call.
1644
1645 Any such memory load insn may be substituted by a load directly
1646 off the GP. This allows the memory load insn to be issued before
fe8bc63d 1647 the calculated GP register would otherwise be ready.
252b5132
RH		 1648
1649 Any such jsr insn can be replaced by a bsr if it is in range.
1650
1651 This would mean that we'd have to _add_ relocations, the pain of
1652 which gives one pause. */
1653
b34976b6 1654 return TRUE;
252b5132
RH		 1655}
1656
b34976b6 1657static bfd_boolean
9e756d64
RH		 1658elf64_alpha_relax_gprelhilo (info, symval, irel, hi)
1659 struct alpha_relax_info *info;
1660 bfd_vma symval;
1661 Elf_Internal_Rela *irel;
b34976b6 1662 bfd_boolean hi;
9e756d64
RH		 1663{
1664 unsigned int insn;
1665 bfd_signed_vma disp;
1666 bfd_byte *pos = info->contents + irel->r_offset;
1667
1668 /* ??? This assumes that the compiler doesn't render
1669
1670 array[i]
1671 as
1672 ldah t, array(gp) !gprelhigh
1673 s8addl i, t, t
1674 ldq r, array(t) !gprellow
1675
1676 which would indeed be the most efficient way to implement this. */
1677
b34976b6 1678 return TRUE;
9e756d64
RH		 1679
1680 disp = symval - info->gp;
1681 if (disp < -0x8000 || disp >= 0x8000)
b34976b6 1682 return TRUE;
9e756d64
RH		 1683
1684 if (hi)
1685 {
1686 /* Nop out the high instruction. */
1687
1688 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos);
b34976b6 1689 info->changed_contents = TRUE;
9e756d64
RH		 1690
1691 irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1692 irel->r_addend = 0;
b34976b6 1693 info->changed_relocs = TRUE;
9e756d64
RH		 1694 }
1695 else
1696 {
1697 /* Adjust the low instruction to reference GP directly. */
1698
1699 insn = bfd_get_32 (info->abfd, pos);
1700 insn = (insn & 0xffe00000) | (29 << 16);
1701 bfd_put_32 (info->abfd, (bfd_vma) insn, pos);
b34976b6 1702 info->changed_contents = TRUE;
9e756d64
RH		 1703
1704 irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
1705 R_ALPHA_GPREL16);
b34976b6 1706 info->changed_relocs = TRUE;
9e756d64
RH		 1707 }
1708
b34976b6 1709 return TRUE;
9e756d64
RH		 1710}
1711
b34976b6 1712static bfd_boolean
9e756d64
RH		 1713elf64_alpha_relax_tls_get_addr (info, symval, irel, is_gd)
1714 struct alpha_relax_info *info;
1715 bfd_vma symval;
1716 Elf_Internal_Rela *irel;
b34976b6 1717 bfd_boolean is_gd;
9e756d64
RH		 1718{
1719 bfd_byte *pos[5];
1720 unsigned int insn;
1721 Elf_Internal_Rela *gpdisp, *hint;
1bbc9cec 1722 bfd_boolean dynamic, use_gottprel, pos1_unusable;
cc03ec80 1723 unsigned long new_symndx;
9e756d64
RH		 1724
1725 dynamic = alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info);
1726
9e756d64
RH		 1727 /* If a TLS symbol is accessed using IE at least once, there is no point
1728 to use dynamic model for it. */
1729 if (is_gd && info->h && (info->h->flags & ALPHA_ELF_LINK_HASH_TLS_IE))
1730 ;
1731
1732 /* If the symbol is local, and we've already committed to DF_STATIC_TLS,
1733 then we might as well relax to IE. */
1734 else if (info->link_info->shared && !dynamic
1735 && (info->link_info->flags & DF_STATIC_TLS))
1736 ;
1737
1738 /* Otherwise we must be building an executable to do anything. */
1739 else if (info->link_info->shared)
b34976b6 1740 return TRUE;
9e756d64
RH		 1741
1742 /* The TLSGD/TLSLDM relocation must be followed by a LITERAL and
1743 the matching LITUSE_TLS relocations. */
1744 if (irel + 2 >= info->relend)
b34976b6 1745 return TRUE;
9e756d64
RH		 1746 if (ELF64_R_TYPE (irel[1].r_info) != R_ALPHA_LITERAL
1747 || ELF64_R_TYPE (irel[2].r_info) != R_ALPHA_LITUSE
1748 || irel[2].r_addend != (is_gd ? LITUSE_ALPHA_TLSGD : LITUSE_ALPHA_TLSLDM))
b34976b6 1749 return TRUE;
9e756d64
RH		 1750
1751 /* There must be a GPDISP relocation positioned immediately after the
1752 LITUSE relocation. */
1753 gpdisp = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend,
1754 irel[2].r_offset + 4, R_ALPHA_GPDISP);
1755 if (!gpdisp)
b34976b6 1756 return TRUE;
9e756d64
RH		 1757
1758 pos[0] = info->contents + irel[0].r_offset;
1759 pos[1] = info->contents + irel[1].r_offset;
1760 pos[2] = info->contents + irel[2].r_offset;
1761 pos[3] = info->contents + gpdisp->r_offset;
1762 pos[4] = pos[3] + gpdisp->r_addend;
1bbc9cec 1763 pos1_unusable = FALSE;
9e756d64 1764
1bbc9cec
RH		 1765 /* Generally, the positions are not allowed to be out of order, lest the
1766 modified insn sequence have different register lifetimes. We can make
1767 an exception when pos 1 is adjacent to pos 0. */
1768 if (pos[1] + 4 == pos[0])
9e756d64
RH		 1769 {
1770 bfd_byte *tmp = pos[0];
1771 pos[0] = pos[1];
1772 pos[1] = tmp;
1773 }
1bbc9cec
RH		 1774 else if (pos[1] < pos[0])
1775 pos1_unusable = TRUE;
1776 if (pos[1] >= pos[2] || pos[2] >= pos[3])
b34976b6 1777 return TRUE;
9e756d64
RH		 1778
1779 /* Reduce the use count on the LITERAL relocation. Do this before we
1780 smash the symndx when we adjust the relocations below. */
1781 {
1782 struct alpha_elf_got_entry *lit_gotent;
1783 struct alpha_elf_link_hash_entry *lit_h;
1784 unsigned long indx;
1785
1786 BFD_ASSERT (ELF64_R_SYM (irel[1].r_info) >= info->symtab_hdr->sh_info);
1787 indx = ELF64_R_SYM (irel[1].r_info) - info->symtab_hdr->sh_info;
1788 lit_h = alpha_elf_sym_hashes (info->abfd)[indx];
1789
1790 while (lit_h->root.root.type == bfd_link_hash_indirect
1791 || lit_h->root.root.type == bfd_link_hash_warning)
1792 lit_h = (struct alpha_elf_link_hash_entry *) lit_h->root.root.u.i.link;
1793
1794 for (lit_gotent = lit_h->got_entries; lit_gotent ;
1795 lit_gotent = lit_gotent->next)
1796 if (lit_gotent->gotobj == info->gotobj
1797 && lit_gotent->reloc_type == R_ALPHA_LITERAL
1798 && lit_gotent->addend == irel[1].r_addend)
1799 break;
1800 BFD_ASSERT (lit_gotent);
1801
1802 if (--lit_gotent->use_count == 0)
1803 {
1804 int sz = alpha_got_entry_size (R_ALPHA_LITERAL);
1805 alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
1806 }
1807 }
1808
1809 /* Change
1810
1811 lda $16,x($gp) !tlsgd!1
1812 ldq $27,__tls_get_addr($gp) !literal!1
1813 jsr $26,($27)__tls_get_addr !lituse_tlsgd!1
1814 ldah $29,0($26) !gpdisp!2
1815 lda $29,0($29) !gpdisp!2
1816 to
1817 ldq $16,x($gp) !gottprel
1818 unop
1819 call_pal rduniq
1820 addq $16,$0,$0
1821 unop
1822 or the first pair to
1823 lda $16,x($gp) !tprel
1824 unop
1825 or
1826 ldah $16,x($gp) !tprelhi
1827 lda $16,x($16) !tprello
1828
1829 as appropriate. */
1830
b34976b6 1831 use_gottprel = FALSE;
cc03ec80 1832 new_symndx = is_gd ? ELF64_R_SYM (irel->r_info) : 0;
9e756d64
RH		 1833 switch (!dynamic && !info->link_info->shared)
1834 {
1835 case 1:
1836 {
1837 bfd_vma tp_base;
1838 bfd_signed_vma disp;
1839
e1918d23
AM		 1840 BFD_ASSERT (elf_hash_table (info->link_info)->tls_sec != NULL);
1841 tp_base = alpha_get_tprel_base (info->link_info);
9e756d64
RH		 1842 disp = symval - tp_base;
1843
1844 if (disp >= -0x8000 && disp < 0x8000)
1845 {
1846 insn = (OP_LDA << 26) | (16 << 21) | (31 << 16);
1847 bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
1848 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]);
1849
1850 irel[0].r_offset = pos[0] - info->contents;
cc03ec80 1851 irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPREL16);
9e756d64
RH		 1852 irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1853 break;
1854 }
1855 else if (disp >= -(bfd_signed_vma) 0x80000000
1bbc9cec
RH		 1856 && disp < (bfd_signed_vma) 0x7fff8000
1857 && !pos1_unusable)
9e756d64
RH		 1858 {
1859 insn = (OP_LDAH << 26) | (16 << 21) | (31 << 16);
1860 bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
1861 insn = (OP_LDA << 26) | (16 << 21) | (16 << 16);
1862 bfd_put_32 (info->abfd, (bfd_vma) insn, pos[1]);
1863
1864 irel[0].r_offset = pos[0] - info->contents;
cc03ec80 1865 irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPRELHI);
9e756d64 1866 irel[1].r_offset = pos[1] - info->contents;
cc03ec80 1867 irel[1].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPRELLO);
9e756d64
RH		 1868 break;
1869 }
1870 }
1871 /* FALLTHRU */
1872
1873 default:
b34976b6 1874 use_gottprel = TRUE;
9e756d64
RH		 1875
1876 insn = (OP_LDQ << 26) | (16 << 21) | (29 << 16);
1877 bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
1878 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]);
1879
1880 irel[0].r_offset = pos[0] - info->contents;
cc03ec80 1881 irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_GOTTPREL);
9e756d64
RH		 1882 irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1883 break;
1884 }
1885
1886 bfd_put_32 (info->abfd, (bfd_vma) INSN_RDUNIQ, pos[2]);
1887
1888 insn = INSN_ADDQ | (16 << 21) | (0 << 16) | (0 << 0);
1889 bfd_put_32 (info->abfd, (bfd_vma) insn, pos[3]);
1890
1891 bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[4]);
1892
1893 irel[2].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1894 gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1895
1896 hint = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend,
1897 irel[2].r_offset, R_ALPHA_HINT);
1898 if (hint)
1899 hint->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
1900
b34976b6
AM		 1901 info->changed_contents = TRUE;
1902 info->changed_relocs = TRUE;
9e756d64
RH		 1903
1904 /* Reduce the use count on the TLSGD/TLSLDM relocation. */
1905 if (--info->gotent->use_count == 0)
1906 {
1907 int sz = alpha_got_entry_size (info->gotent->reloc_type);
1908 alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
1909 if (!info->h)
1910 alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
1911 }
1912
1913 /* If we've switched to a GOTTPREL relocation, increment the reference
1914 count on that got entry. */
1915 if (use_gottprel)
1916 {
1917 struct alpha_elf_got_entry *tprel_gotent;
1918
1919 for (tprel_gotent = *info->first_gotent; tprel_gotent ;
1920 tprel_gotent = tprel_gotent->next)
1921 if (tprel_gotent->gotobj == info->gotobj
1922 && tprel_gotent->reloc_type == R_ALPHA_GOTTPREL
1923 && tprel_gotent->addend == irel->r_addend)
1924 break;
1925 if (tprel_gotent)
1926 tprel_gotent->use_count++;
1927 else
1928 {
1929 if (info->gotent->use_count == 0)
1930 tprel_gotent = info->gotent;
1931 else
1932 {
1933 tprel_gotent = (struct alpha_elf_got_entry *)
1934 bfd_alloc (info->abfd, sizeof (struct alpha_elf_got_entry));
1935 if (!tprel_gotent)
b34976b6 1936 return FALSE;
9e756d64
RH		 1937
1938 tprel_gotent->next = *info->first_gotent;
1939 *info->first_gotent = tprel_gotent;
1940
1941 tprel_gotent->gotobj = info->gotobj;
1942 tprel_gotent->addend = irel->r_addend;
1943 tprel_gotent->got_offset = -1;
1944 tprel_gotent->reloc_done = 0;
1945 tprel_gotent->reloc_xlated = 0;
1946 }
1947
1948 tprel_gotent->use_count = 1;
1949 tprel_gotent->reloc_type = R_ALPHA_GOTTPREL;
1950 }
1951 }
1952
b34976b6 1953 return TRUE;
9e756d64
RH		 1954}
1955
b34976b6 1956static bfd_boolean
252b5132
RH		 1957elf64_alpha_relax_section (abfd, sec, link_info, again)
1958 bfd *abfd;
1959 asection *sec;
1960 struct bfd_link_info *link_info;
b34976b6 1961 bfd_boolean *again;
252b5132
RH		 1962{
1963 Elf_Internal_Shdr *symtab_hdr;
1964 Elf_Internal_Rela *internal_relocs;
252b5132 1965 Elf_Internal_Rela *irel, *irelend;
6cdc0ccc 1966 Elf_Internal_Sym *isymbuf = NULL;
252b5132
RH		 1967 struct alpha_elf_got_entry **local_got_entries;
1968 struct alpha_relax_info info;
1969
1970 /* We are not currently changing any sizes, so only one pass. */
b34976b6 1971 *again = FALSE;
252b5132 1972
1049f94e 1973 if (link_info->relocatable
252b5132
RH		 1974 || (sec->flags & SEC_RELOC) == 0
1975 || sec->reloc_count == 0)
b34976b6 1976 return TRUE;
252b5132 1977
252b5132
RH		 1978 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1979 local_got_entries = alpha_elf_tdata(abfd)->local_got_entries;
1980
1981 /* Load the relocations for this section. */
45d6a902 1982 internal_relocs = (_bfd_elf_link_read_relocs
252b5132
RH		 1983 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
1984 link_info->keep_memory));
1985 if (internal_relocs == NULL)
b34976b6 1986 return FALSE;
252b5132 1987
fe8bc63d 1988 memset(&info, 0, sizeof (info));
252b5132
RH		 1989 info.abfd = abfd;
1990 info.sec = sec;
1991 info.link_info = link_info;
9e756d64 1992 info.symtab_hdr = symtab_hdr;
252b5132
RH		 1993 info.relocs = internal_relocs;
1994 info.relend = irelend = internal_relocs + sec->reloc_count;
1995
cedb70c5 1996 /* Find the GP for this object. Do not store the result back via
b646261c 1997 _bfd_set_gp_value, since this could change again before final. */
252b5132
RH		 1998 info.gotobj = alpha_elf_tdata (abfd)->gotobj;
1999 if (info.gotobj)
2000 {
2001 asection *sgot = alpha_elf_tdata (info.gotobj)->got;
b646261c
RH		 2002 info.gp = (sgot->output_section->vma
2003 + sgot->output_offset
2004 + 0x8000);
252b5132
RH		 2005 }
2006
9e756d64
RH		 2007 /* Get the section contents. */
2008 if (elf_section_data (sec)->this_hdr.contents != NULL)
2009 info.contents = elf_section_data (sec)->this_hdr.contents;
2010 else
252b5132 2011 {
eea6121a 2012 if (!bfd_malloc_and_get_section (abfd, sec, &info.contents))
9e756d64
RH		 2013 goto error_return;
2014 }
252b5132 2015
9e756d64
RH		 2016 for (irel = internal_relocs; irel < irelend; irel++)
2017 {
2018 bfd_vma symval;
9e756d64
RH		 2019 struct alpha_elf_got_entry *gotent;
2020 unsigned long r_type = ELF64_R_TYPE (irel->r_info);
cc03ec80 2021 unsigned long r_symndx = ELF64_R_SYM (irel->r_info);
9e756d64
RH		 2022
2023 /* Early exit for unhandled or unrelaxable relocations. */
2024 switch (r_type)
2025 {
2026 case R_ALPHA_LITERAL:
2027 case R_ALPHA_GPRELHIGH:
2028 case R_ALPHA_GPRELLOW:
2029 case R_ALPHA_GOTDTPREL:
2030 case R_ALPHA_GOTTPREL:
2031 case R_ALPHA_TLSGD:
cc03ec80
RH		 2032 break;
2033
9e756d64 2034 case R_ALPHA_TLSLDM:
cc03ec80
RH		 2035 /* The symbol for a TLSLDM reloc is ignored. Collapse the
2036 reloc to the 0 symbol so that they all match. */
2037 r_symndx = 0;
9e756d64 2038 break;
cc03ec80 2039
9e756d64
RH		 2040 default:
2041 continue;
252b5132
RH		 2042 }
2043
2044 /* Get the value of the symbol referred to by the reloc. */
cc03ec80 2045 if (r_symndx < symtab_hdr->sh_info)
252b5132
RH		 2046 {
2047 /* A local symbol. */
6cdc0ccc
AM		 2048 Elf_Internal_Sym *isym;
2049
2050 /* Read this BFD's local symbols. */
2051 if (isymbuf == NULL)
2052 {
2053 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2054 if (isymbuf == NULL)
2055 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2056 symtab_hdr->sh_info, 0,
2057 NULL, NULL, NULL);
2058 if (isymbuf == NULL)
2059 goto error_return;
2060 }
2061
cc03ec80
RH		 2062 isym = isymbuf + r_symndx;
2063
2064 /* Given the symbol for a TLSLDM reloc is ignored, this also
2065 means forcing the symbol value to the tp base. */
2066 if (r_type == R_ALPHA_TLSLDM)
2067 {
2068 info.tsec = bfd_abs_section_ptr;
e1918d23 2069 symval = alpha_get_tprel_base (info.link_info);
cc03ec80 2070 }
fe8bc63d 2071 else
cc03ec80
RH		 2072 {
2073 symval = isym->st_value;
2074 if (isym->st_shndx == SHN_UNDEF)
2075 continue;
2076 else if (isym->st_shndx == SHN_ABS)
2077 info.tsec = bfd_abs_section_ptr;
2078 else if (isym->st_shndx == SHN_COMMON)
2079 info.tsec = bfd_com_section_ptr;
2080 else
2081 info.tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
2082 }
252b5132
RH		 2083
2084 info.h = NULL;
6cdc0ccc 2085 info.other = isym->st_other;
c328dc3f
JJ		 2086 if (local_got_entries)
2087 info.first_gotent = &local_got_entries[r_symndx];
2088 else
2089 {
2090 info.first_gotent = &info.gotent;
2091 info.gotent = NULL;
2092 }
252b5132
RH		 2093 }
2094 else
2095 {
2096 unsigned long indx;
2097 struct alpha_elf_link_hash_entry *h;
2098
cc03ec80 2099 indx = r_symndx - symtab_hdr->sh_info;
252b5132
RH		 2100 h = alpha_elf_sym_hashes (abfd)[indx];
2101 BFD_ASSERT (h != NULL);
2102
2103 while (h->root.root.type == bfd_link_hash_indirect
2104 || h->root.root.type == bfd_link_hash_warning)
2105 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
2106
4a67a098
RH		 2107 /* If the symbol is undefined, we can't do anything with it. */
2108 if (h->root.root.type == bfd_link_hash_undefweak
2109 || h->root.root.type == bfd_link_hash_undefined)
2110 continue;
2111
2112 /* If the symbol isn't defined in the current module, again
2113 we can't do anything. */
f5385ebf 2114 if (!h->root.def_regular)
cc03ec80
RH		 2115 {
2116 /* Except for TLSGD relocs, which can sometimes be
2117 relaxed to GOTTPREL relocs. */
2118 if (r_type != R_ALPHA_TLSGD)
2119 continue;
2120 info.tsec = bfd_abs_section_ptr;
2121 symval = 0;
2122 }
2123 else
2124 {
2125 info.tsec = h->root.root.u.def.section;
2126 symval = h->root.root.u.def.value;
2127 }
4a67a098 2128
252b5132 2129 info.h = h;
252b5132 2130 info.other = h->root.other;
9e756d64 2131 info.first_gotent = &h->got_entries;
252b5132
RH		 2132 }
2133
2134 /* Search for the got entry to be used by this relocation. */
9e756d64
RH		 2135 for (gotent = *info.first_gotent; gotent ; gotent = gotent->next)
2136 if (gotent->gotobj == info.gotobj
2137 && gotent->reloc_type == r_type
2138 && gotent->addend == irel->r_addend)
2139 break;
252b5132
RH		 2140 info.gotent = gotent;
2141
2142 symval += info.tsec->output_section->vma + info.tsec->output_offset;
2143 symval += irel->r_addend;
2144
9e756d64
RH		 2145 switch (r_type)
2146 {
2147 case R_ALPHA_LITERAL:
2148 BFD_ASSERT(info.gotent != NULL);
252b5132 2149
9e756d64
RH		 2150 /* If there exist LITUSE relocations immediately following, this
2151 opens up all sorts of interesting optimizations, because we
2152 now know every location that this address load is used. */
2153 if (irel+1 < irelend
2154 && ELF64_R_TYPE (irel[1].r_info) == R_ALPHA_LITUSE)
2155 {
2156 if (!elf64_alpha_relax_with_lituse (&info, symval, irel))
2157 goto error_return;
2158 }
2159 else
2160 {
2161 if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type))
2162 goto error_return;
2163 }
2164 break;
252b5132 2165
9e756d64
RH		 2166 case R_ALPHA_GPRELHIGH:
2167 case R_ALPHA_GPRELLOW:
2168 if (!elf64_alpha_relax_gprelhilo (&info, symval, irel,
2169 r_type == R_ALPHA_GPRELHIGH))
252b5132 2170 goto error_return;
9e756d64
RH		 2171 break;
2172
2173 case R_ALPHA_GOTDTPREL:
2174 case R_ALPHA_GOTTPREL:
2175 BFD_ASSERT(info.gotent != NULL);
2176 if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type))
252b5132 2177 goto error_return;
9e756d64
RH		 2178 break;
2179
2180 case R_ALPHA_TLSGD:
2181 case R_ALPHA_TLSLDM:
2182 BFD_ASSERT(info.gotent != NULL);
2183 if (!elf64_alpha_relax_tls_get_addr (&info, symval, irel,
2184 r_type == R_ALPHA_TLSGD))
2185 goto error_return;
2186 break;
252b5132
RH		 2187 }
2188 }
2189
f44f99a5 2190 if (!elf64_alpha_size_plt_section (link_info))
b34976b6 2191 return FALSE;
f44f99a5 2192 if (!elf64_alpha_size_got_sections (link_info))
b34976b6 2193 return FALSE;
f44f99a5 2194 if (!elf64_alpha_size_rela_got_section (link_info))
b34976b6 2195 return FALSE;
252b5132 2196
6cdc0ccc
AM		 2197 if (isymbuf != NULL
2198 && symtab_hdr->contents != (unsigned char *) isymbuf)
2199 {
2200 if (!link_info->keep_memory)
2201 free (isymbuf);
2202 else
2203 {
2204 /* Cache the symbols for elf_link_input_bfd. */
2205 symtab_hdr->contents = (unsigned char *) isymbuf;
2206 }
2207 }
252b5132 2208
6cdc0ccc
AM		 2209 if (info.contents != NULL
2210 && elf_section_data (sec)->this_hdr.contents != info.contents)
252b5132 2211 {
6cdc0ccc
AM		 2212 if (!info.changed_contents && !link_info->keep_memory)
2213 free (info.contents);
252b5132
RH		 2214 else
2215 {
2216 /* Cache the section contents for elf_link_input_bfd. */
2217 elf_section_data (sec)->this_hdr.contents = info.contents;
2218 }
2219 }
2220
6cdc0ccc 2221 if (elf_section_data (sec)->relocs != internal_relocs)
252b5132 2222 {
6cdc0ccc
AM		 2223 if (!info.changed_relocs)
2224 free (internal_relocs);
252b5132 2225 else
6cdc0ccc 2226 elf_section_data (sec)->relocs = internal_relocs;
252b5132
RH		 2227 }
2228
2229 *again = info.changed_contents || info.changed_relocs;
2230
b34976b6 2231 return TRUE;
252b5132
RH		 2232
2233 error_return:
6cdc0ccc
AM		 2234 if (isymbuf != NULL
2235 && symtab_hdr->contents != (unsigned char *) isymbuf)
2236 free (isymbuf);
2237 if (info.contents != NULL
2238 && elf_section_data (sec)->this_hdr.contents != info.contents)
2239 free (info.contents);
2240 if (internal_relocs != NULL
2241 && elf_section_data (sec)->relocs != internal_relocs)
2242 free (internal_relocs);
b34976b6 2243 return FALSE;
252b5132
RH		 2244}
2245\f
2246/* PLT/GOT Stuff */
2247#define PLT_HEADER_SIZE 32
dc810e39
AM		 2248#define PLT_HEADER_WORD1 (bfd_vma) 0xc3600000 /* br $27,.+4 */
2249#define PLT_HEADER_WORD2 (bfd_vma) 0xa77b000c /* ldq $27,12($27) */
2250#define PLT_HEADER_WORD3 (bfd_vma) 0x47ff041f /* nop */
2251#define PLT_HEADER_WORD4 (bfd_vma) 0x6b7b0000 /* jmp $27,($27) */
252b5132
RH		 2252
2253#define PLT_ENTRY_SIZE 12
2254#define PLT_ENTRY_WORD1 0xc3800000 /* br $28, plt0 */
2255#define PLT_ENTRY_WORD2 0
2256#define PLT_ENTRY_WORD3 0
2257
3765b1be 2258#define MAX_GOT_SIZE (64*1024)
252b5132
RH		 2259
2260#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so"
2261\f
2262/* Handle an Alpha specific section when reading an object file. This
2263 is called when elfcode.h finds a section with an unknown type.
2264 FIXME: We need to handle the SHF_ALPHA_GPREL flag, but I'm not sure
2265 how to. */
2266
b34976b6 2267static bfd_boolean
252b5132
RH		 2268elf64_alpha_section_from_shdr (abfd, hdr, name)
2269 bfd *abfd;
947216bf 2270 Elf_Internal_Shdr *hdr;
90937f86 2271 const char *name;
252b5132
RH		 2272{
2273 asection *newsect;
2274
2275 /* There ought to be a place to keep ELF backend specific flags, but
2276 at the moment there isn't one. We just keep track of the
2277 sections by their name, instead. Fortunately, the ABI gives
2278 suggested names for all the MIPS specific sections, so we will
2279 probably get away with this. */
2280 switch (hdr->sh_type)
2281 {
2282 case SHT_ALPHA_DEBUG:
2283 if (strcmp (name, ".mdebug") != 0)
b34976b6 2284 return FALSE;
252b5132 2285 break;
252b5132 2286 default:
b34976b6 2287 return FALSE;
252b5132
RH		 2288 }
2289
2290 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
b34976b6 2291 return FALSE;
252b5132
RH		 2292 newsect = hdr->bfd_section;
2293
2294 if (hdr->sh_type == SHT_ALPHA_DEBUG)
2295 {
2296 if (! bfd_set_section_flags (abfd, newsect,
2297 (bfd_get_section_flags (abfd, newsect)
2298 | SEC_DEBUGGING)))
b34976b6 2299 return FALSE;
252b5132
RH		 2300 }
2301
b34976b6 2302 return TRUE;
252b5132
RH		 2303}
2304
204692d7
RH		 2305/* Convert Alpha specific section flags to bfd internal section flags. */
2306
b34976b6 2307static bfd_boolean
204692d7
RH		 2308elf64_alpha_section_flags (flags, hdr)
2309 flagword *flags;
1829f4b2 2310 const Elf_Internal_Shdr *hdr;
204692d7
RH		 2311{
2312 if (hdr->sh_flags & SHF_ALPHA_GPREL)
2313 *flags |= SEC_SMALL_DATA;
2314
b34976b6 2315 return TRUE;
204692d7
RH		 2316}
2317
252b5132
RH		 2318/* Set the correct type for an Alpha ELF section. We do this by the
2319 section name, which is a hack, but ought to work. */
2320
b34976b6 2321static bfd_boolean
252b5132
RH		 2322elf64_alpha_fake_sections (abfd, hdr, sec)
2323 bfd *abfd;
947216bf 2324 Elf_Internal_Shdr *hdr;
252b5132
RH		 2325 asection *sec;
2326{
2327 register const char *name;
2328
2329 name = bfd_get_section_name (abfd, sec);
2330
2331 if (strcmp (name, ".mdebug") == 0)
2332 {
2333 hdr->sh_type = SHT_ALPHA_DEBUG;
2334 /* In a shared object on Irix 5.3, the .mdebug section has an
2335 entsize of 0. FIXME: Does this matter? */
2336 if ((abfd->flags & DYNAMIC) != 0 )
2337 hdr->sh_entsize = 0;
2338 else
2339 hdr->sh_entsize = 1;
2340 }
204692d7
RH		 2341 else if ((sec->flags & SEC_SMALL_DATA)
2342 || strcmp (name, ".sdata") == 0
252b5132
RH		 2343 || strcmp (name, ".sbss") == 0
2344 || strcmp (name, ".lit4") == 0
2345 || strcmp (name, ".lit8") == 0)
2346 hdr->sh_flags |= SHF_ALPHA_GPREL;
2347
b34976b6 2348 return TRUE;
252b5132
RH		 2349}
2350
2351/* Hook called by the linker routine which adds symbols from an object
2352 file. We use it to put .comm items in .sbss, and not .bss. */
2353
b34976b6 2354static bfd_boolean
252b5132
RH		 2355elf64_alpha_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2356 bfd *abfd;
2357 struct bfd_link_info *info;
555cd476 2358 Elf_Internal_Sym *sym;
56fc028e
AJ		 2359 const char **namep ATTRIBUTE_UNUSED;
2360 flagword *flagsp ATTRIBUTE_UNUSED;
252b5132
RH		 2361 asection **secp;
2362 bfd_vma *valp;
2363{
2364 if (sym->st_shndx == SHN_COMMON
1049f94e 2365 && !info->relocatable
c0846b23 2366 && sym->st_size <= elf_gp_size (abfd))
252b5132
RH		 2367 {
2368 /* Common symbols less than or equal to -G nn bytes are
2369 automatically put into .sbss. */
2370
2371 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
2372
2373 if (scomm == NULL)
2374 {
2375 scomm = bfd_make_section (abfd, ".scommon");
2376 if (scomm == NULL
2377 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
2378 | SEC_IS_COMMON
2379 | SEC_LINKER_CREATED)))
b34976b6 2380 return FALSE;
252b5132
RH		 2381 }
2382
2383 *secp = scomm;
2384 *valp = sym->st_size;
2385 }
2386
b34976b6 2387 return TRUE;
252b5132
RH		 2388}
2389
2390/* Create the .got section. */
2391
b34976b6 2392static bfd_boolean
252b5132
RH		 2393elf64_alpha_create_got_section(abfd, info)
2394 bfd *abfd;
56fc028e 2395 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH		 2396{
2397 asection *s;
2398
61bcf373
DJ		 2399 if ((s = bfd_get_section_by_name (abfd, ".got")))
2400 {
2401 /* Check for a non-linker created .got? */
2402 if (alpha_elf_tdata (abfd)->got == NULL)
2403 alpha_elf_tdata (abfd)->got = s;
2404 return TRUE;
2405 }
252b5132
RH		 2406
2407 s = bfd_make_section (abfd, ".got");
2408 if (s == NULL
2409 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
2410 | SEC_HAS_CONTENTS
2411 | SEC_IN_MEMORY
2412 | SEC_LINKER_CREATED))
2413 || !bfd_set_section_alignment (abfd, s, 3))
b34976b6 2414 return FALSE;
252b5132
RH		 2415
2416 alpha_elf_tdata (abfd)->got = s;
2417
b34976b6 2418 return TRUE;
252b5132
RH		 2419}
2420
2421/* Create all the dynamic sections. */
2422
b34976b6 2423static bfd_boolean
252b5132
RH		 2424elf64_alpha_create_dynamic_sections (abfd, info)
2425 bfd *abfd;
2426 struct bfd_link_info *info;
2427{
2428 asection *s;
2429 struct elf_link_hash_entry *h;
14a793b2 2430 struct bfd_link_hash_entry *bh;
252b5132
RH		 2431
2432 /* We need to create .plt, .rela.plt, .got, and .rela.got sections. */
2433
2434 s = bfd_make_section (abfd, ".plt");
2435 if (s == NULL
2436 || ! bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
2437 | SEC_HAS_CONTENTS
2438 | SEC_IN_MEMORY
2439 | SEC_LINKER_CREATED
2440 | SEC_CODE))
2441 || ! bfd_set_section_alignment (abfd, s, 3))
b34976b6 2442 return FALSE;
252b5132
RH		 2443
2444 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2445 .plt section. */
14a793b2 2446 bh = NULL;
252b5132
RH		 2447 if (! (_bfd_generic_link_add_one_symbol
2448 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
b34976b6 2449 (bfd_vma) 0, (const char *) NULL, FALSE,
14a793b2 2450 get_elf_backend_data (abfd)->collect, &bh)))
b34976b6 2451 return FALSE;
14a793b2 2452 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2453 h->def_regular = 1;
252b5132
RH		 2454 h->type = STT_OBJECT;
2455
2456 if (info->shared
c152c796 2457 && ! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2458 return FALSE;
252b5132
RH		 2459
2460 s = bfd_make_section (abfd, ".rela.plt");
2461 if (s == NULL
2462 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
2463 | SEC_HAS_CONTENTS
2464 | SEC_IN_MEMORY
2465 | SEC_LINKER_CREATED
2466 | SEC_READONLY))
2467 || ! bfd_set_section_alignment (abfd, s, 3))
b34976b6 2468 return FALSE;
252b5132
RH		 2469
2470 /* We may or may not have created a .got section for this object, but
2471 we definitely havn't done the rest of the work. */
2472
2473 if (!elf64_alpha_create_got_section (abfd, info))
b34976b6 2474 return FALSE;
252b5132
RH		 2475
2476 s = bfd_make_section(abfd, ".rela.got");
2477 if (s == NULL
2478 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
2479 | SEC_HAS_CONTENTS
2480 | SEC_IN_MEMORY
2481 | SEC_LINKER_CREATED
2482 | SEC_READONLY))
2483 || !bfd_set_section_alignment (abfd, s, 3))
b34976b6 2484 return FALSE;
252b5132
RH		 2485
2486 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the
2487 dynobj's .got section. We don't do this in the linker script
2488 because we don't want to define the symbol if we are not creating
2489 a global offset table. */
14a793b2 2490 bh = NULL;
252b5132
RH		 2491 if (!(_bfd_generic_link_add_one_symbol
2492 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL,
2493 alpha_elf_tdata(abfd)->got, (bfd_vma) 0, (const char *) NULL,
b34976b6
AM		 2494 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
2495 return FALSE;
14a793b2 2496 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2497 h->def_regular = 1;
252b5132
RH		 2498 h->type = STT_OBJECT;
2499
2500 if (info->shared
c152c796 2501 && ! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2502 return FALSE;
252b5132
RH		 2503
2504 elf_hash_table (info)->hgot = h;
2505
b34976b6 2506 return TRUE;
252b5132
RH		 2507}
2508\f
2509/* Read ECOFF debugging information from a .mdebug section into a
2510 ecoff_debug_info structure. */
2511
b34976b6 2512static bfd_boolean
252b5132
RH		 2513elf64_alpha_read_ecoff_info (abfd, section, debug)
2514 bfd *abfd;
2515 asection *section;
2516 struct ecoff_debug_info *debug;
2517{
2518 HDRR *symhdr;
2519 const struct ecoff_debug_swap *swap;
2520 char *ext_hdr = NULL;
2521
2522 swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
fe8bc63d 2523 memset (debug, 0, sizeof (*debug));
252b5132 2524
dc810e39 2525 ext_hdr = (char *) bfd_malloc (swap->external_hdr_size);
252b5132
RH		 2526 if (ext_hdr == NULL && swap->external_hdr_size != 0)
2527 goto error_return;
2528
82e51918
AM		 2529 if (! bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
2530 swap->external_hdr_size))
252b5132
RH		 2531 goto error_return;
2532
2533 symhdr = &debug->symbolic_header;
2534 (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
2535
2536 /* The symbolic header contains absolute file offsets and sizes to
2537 read. */
2538#define READ(ptr, offset, count, size, type) \
2539 if (symhdr->count == 0) \
2540 debug->ptr = NULL; \
2541 else \
2542 { \
dc810e39
AM		 2543 bfd_size_type amt = (bfd_size_type) size * symhdr->count; \
2544 debug->ptr = (type) bfd_malloc (amt); \
252b5132
RH		 2545 if (debug->ptr == NULL) \
2546 goto error_return; \
2547 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
dc810e39 2548 || bfd_bread (debug->ptr, amt, abfd) != amt) \
252b5132
RH		 2549 goto error_return; \
2550 }
2551
2552 READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
2553 READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
2554 READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
2555 READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
2556 READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
2557 READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
2558 union aux_ext *);
2559 READ (ss, cbSsOffset, issMax, sizeof (char), char *);
2560 READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
2561 READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
2562 READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
2563 READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
2564#undef READ
2565
2566 debug->fdr = NULL;
252b5132 2567
b34976b6 2568 return TRUE;
252b5132
RH		 2569
2570 error_return:
2571 if (ext_hdr != NULL)
2572 free (ext_hdr);
2573 if (debug->line != NULL)
2574 free (debug->line);
2575 if (debug->external_dnr != NULL)
2576 free (debug->external_dnr);
2577 if (debug->external_pdr != NULL)
2578 free (debug->external_pdr);
2579 if (debug->external_sym != NULL)
2580 free (debug->external_sym);
2581 if (debug->external_opt != NULL)
2582 free (debug->external_opt);
2583 if (debug->external_aux != NULL)
2584 free (debug->external_aux);
2585 if (debug->ss != NULL)
2586 free (debug->ss);
2587 if (debug->ssext != NULL)
2588 free (debug->ssext);
2589 if (debug->external_fdr != NULL)
2590 free (debug->external_fdr);
2591 if (debug->external_rfd != NULL)
2592 free (debug->external_rfd);
2593 if (debug->external_ext != NULL)
2594 free (debug->external_ext);
b34976b6 2595 return FALSE;
252b5132
RH		 2596}
2597
2598/* Alpha ELF local labels start with '$'. */
2599
b34976b6 2600static bfd_boolean
252b5132 2601elf64_alpha_is_local_label_name (abfd, name)
56fc028e 2602 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 2603 const char *name;
2604{
2605 return name[0] == '$';
2606}
2607
2608/* Alpha ELF follows MIPS ELF in using a special find_nearest_line
2609 routine in order to handle the ECOFF debugging information. We
2610 still call this mips_elf_find_line because of the slot
2611 find_line_info in elf_obj_tdata is declared that way. */
2612
2613struct mips_elf_find_line
2614{
2615 struct ecoff_debug_info d;
2616 struct ecoff_find_line i;
2617};
2618
b34976b6 2619static bfd_boolean
252b5132
RH		 2620elf64_alpha_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
2621 functionname_ptr, line_ptr)
2622 bfd *abfd;
2623 asection *section;
2624 asymbol **symbols;
2625 bfd_vma offset;
2626 const char **filename_ptr;
2627 const char **functionname_ptr;
2628 unsigned int *line_ptr;
2629{
2630 asection *msec;
2631
95404643
RH		 2632 if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
2633 filename_ptr, functionname_ptr,
2634 line_ptr, 0,
2635 &elf_tdata (abfd)->dwarf2_find_line_info))
b34976b6 2636 return TRUE;
95404643 2637
252b5132
RH		 2638 msec = bfd_get_section_by_name (abfd, ".mdebug");
2639 if (msec != NULL)
2640 {
2641 flagword origflags;
2642 struct mips_elf_find_line *fi;
2643 const struct ecoff_debug_swap * const swap =
2644 get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
2645
2646 /* If we are called during a link, alpha_elf_final_link may have
2647 cleared the SEC_HAS_CONTENTS field. We force it back on here
2648 if appropriate (which it normally will be). */
2649 origflags = msec->flags;
2650 if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
2651 msec->flags |= SEC_HAS_CONTENTS;
2652
2653 fi = elf_tdata (abfd)->find_line_info;
2654 if (fi == NULL)
2655 {
2656 bfd_size_type external_fdr_size;
2657 char *fraw_src;
2658 char *fraw_end;
2659 struct fdr *fdr_ptr;
dc810e39 2660 bfd_size_type amt = sizeof (struct mips_elf_find_line);
252b5132 2661
dc810e39 2662 fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt);
252b5132
RH		 2663 if (fi == NULL)
2664 {
2665 msec->flags = origflags;
b34976b6 2666 return FALSE;
252b5132
RH		 2667 }
2668
2669 if (!elf64_alpha_read_ecoff_info (abfd, msec, &fi->d))
2670 {
2671 msec->flags = origflags;
b34976b6 2672 return FALSE;
252b5132
RH		 2673 }
2674
2675 /* Swap in the FDR information. */
dc810e39
AM		 2676 amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr);
2677 fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt);
252b5132
RH		 2678 if (fi->d.fdr == NULL)
2679 {
2680 msec->flags = origflags;
b34976b6 2681 return FALSE;
252b5132
RH		 2682 }
2683 external_fdr_size = swap->external_fdr_size;
2684 fdr_ptr = fi->d.fdr;
2685 fraw_src = (char *) fi->d.external_fdr;
2686 fraw_end = (fraw_src
2687 + fi->d.symbolic_header.ifdMax * external_fdr_size);
2688 for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
2689 (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
2690
2691 elf_tdata (abfd)->find_line_info = fi;
2692
2693 /* Note that we don't bother to ever free this information.
2694 find_nearest_line is either called all the time, as in
2695 objdump -l, so the information should be saved, or it is
2696 rarely called, as in ld error messages, so the memory
2697 wasted is unimportant. Still, it would probably be a
2698 good idea for free_cached_info to throw it away. */
2699 }
2700
2701 if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
2702 &fi->i, filename_ptr, functionname_ptr,
2703 line_ptr))
2704 {
2705 msec->flags = origflags;
b34976b6 2706 return TRUE;
252b5132
RH		 2707 }
2708
2709 msec->flags = origflags;
2710 }
2711
2712 /* Fall back on the generic ELF find_nearest_line routine. */
2713
2714 return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
2715 filename_ptr, functionname_ptr,
2716 line_ptr);
2717}
2718\f
2719/* Structure used to pass information to alpha_elf_output_extsym. */
2720
2721struct extsym_info
2722{
2723 bfd *abfd;
2724 struct bfd_link_info *info;
2725 struct ecoff_debug_info *debug;
2726 const struct ecoff_debug_swap *swap;
b34976b6 2727 bfd_boolean failed;
252b5132
RH		 2728};
2729
b34976b6 2730static bfd_boolean
252b5132
RH		 2731elf64_alpha_output_extsym (h, data)
2732 struct alpha_elf_link_hash_entry *h;
2733 PTR data;
2734{
2735 struct extsym_info *einfo = (struct extsym_info *) data;
b34976b6 2736 bfd_boolean strip;
252b5132
RH		 2737 asection *sec, *output_section;
2738
e92d460e
AM		 2739 if (h->root.root.type == bfd_link_hash_warning)
2740 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
2741
252b5132 2742 if (h->root.indx == -2)
b34976b6 2743 strip = FALSE;
f5385ebf
AM		 2744 else if ((h->root.def_dynamic || h->root.ref_dynamic)
2745 && !h->root.def_regular
2746 && !h->root.ref_regular)
b34976b6 2747 strip = TRUE;
252b5132 2748 else if (einfo->info->strip == strip_all
e92d460e
AM		 2749 || (einfo->info->strip == strip_some
2750 && bfd_hash_lookup (einfo->info->keep_hash,
2751 h->root.root.root.string,
b34976b6
AM		 2752 FALSE, FALSE) == NULL))
2753 strip = TRUE;
252b5132 2754 else
b34976b6 2755 strip = FALSE;
252b5132
RH		 2756
2757 if (strip)
b34976b6 2758 return TRUE;
252b5132
RH		 2759
2760 if (h->esym.ifd == -2)
2761 {
2762 h->esym.jmptbl = 0;
2763 h->esym.cobol_main = 0;
2764 h->esym.weakext = 0;
2765 h->esym.reserved = 0;
2766 h->esym.ifd = ifdNil;
2767 h->esym.asym.value = 0;
2768 h->esym.asym.st = stGlobal;
2769
2770 if (h->root.root.type != bfd_link_hash_defined
e92d460e
AM		 2771 && h->root.root.type != bfd_link_hash_defweak)
2772 h->esym.asym.sc = scAbs;
252b5132 2773 else
e92d460e
AM		 2774 {
2775 const char *name;
2776
2777 sec = h->root.root.u.def.section;
2778 output_section = sec->output_section;
2779
2780 /* When making a shared library and symbol h is the one from
2781 the another shared library, OUTPUT_SECTION may be null. */
2782 if (output_section == NULL)
2783 h->esym.asym.sc = scUndefined;
2784 else
2785 {
2786 name = bfd_section_name (output_section->owner, output_section);
2787
2788 if (strcmp (name, ".text") == 0)
2789 h->esym.asym.sc = scText;
2790 else if (strcmp (name, ".data") == 0)
2791 h->esym.asym.sc = scData;
2792 else if (strcmp (name, ".sdata") == 0)
2793 h->esym.asym.sc = scSData;
2794 else if (strcmp (name, ".rodata") == 0
2795 || strcmp (name, ".rdata") == 0)
2796 h->esym.asym.sc = scRData;
2797 else if (strcmp (name, ".bss") == 0)
2798 h->esym.asym.sc = scBss;
2799 else if (strcmp (name, ".sbss") == 0)
2800 h->esym.asym.sc = scSBss;
2801 else if (strcmp (name, ".init") == 0)
2802 h->esym.asym.sc = scInit;
2803 else if (strcmp (name, ".fini") == 0)
2804 h->esym.asym.sc = scFini;
2805 else
2806 h->esym.asym.sc = scAbs;
2807 }
2808 }
252b5132
RH		 2809
2810 h->esym.asym.reserved = 0;
2811 h->esym.asym.index = indexNil;
2812 }
2813
2814 if (h->root.root.type == bfd_link_hash_common)
2815 h->esym.asym.value = h->root.root.u.c.size;
2816 else if (h->root.root.type == bfd_link_hash_defined
2817 || h->root.root.type == bfd_link_hash_defweak)
2818 {
2819 if (h->esym.asym.sc == scCommon)
e92d460e 2820 h->esym.asym.sc = scBss;
252b5132 2821 else if (h->esym.asym.sc == scSCommon)
e92d460e 2822 h->esym.asym.sc = scSBss;
252b5132
RH		 2823
2824 sec = h->root.root.u.def.section;
2825 output_section = sec->output_section;
2826 if (output_section != NULL)
e92d460e
AM		 2827 h->esym.asym.value = (h->root.root.u.def.value
2828 + sec->output_offset
2829 + output_section->vma);
252b5132 2830 else
e92d460e 2831 h->esym.asym.value = 0;
252b5132 2832 }
f5385ebf 2833 else if (h->root.needs_plt)
252b5132
RH		 2834 {
2835 /* Set type and value for a symbol with a function stub. */
2836 h->esym.asym.st = stProc;
2837 sec = bfd_get_section_by_name (einfo->abfd, ".plt");
2838 if (sec == NULL)
2839 h->esym.asym.value = 0;
2840 else
2841 {
2842 output_section = sec->output_section;
2843 if (output_section != NULL)
2844 h->esym.asym.value = (h->root.plt.offset
2845 + sec->output_offset
2846 + output_section->vma);
2847 else
2848 h->esym.asym.value = 0;
2849 }
252b5132
RH		 2850 }
2851
2852 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
e92d460e
AM		 2853 h->root.root.root.string,
2854 &h->esym))
252b5132 2855 {
b34976b6
AM		 2856 einfo->failed = TRUE;
2857 return FALSE;
252b5132
RH		 2858 }
2859
b34976b6 2860 return TRUE;
252b5132 2861}
252b5132 2862\f
3765b1be
RH		 2863/* Search for and possibly create a got entry. */
2864
2865static struct alpha_elf_got_entry *
2866get_got_entry (abfd, h, r_type, r_symndx, r_addend)
2867 bfd *abfd;
2868 struct alpha_elf_link_hash_entry *h;
2869 unsigned long r_type, r_symndx;
2870 bfd_vma r_addend;
2871{
2872 struct alpha_elf_got_entry *gotent;
2873 struct alpha_elf_got_entry **slot;
2874
2875 if (h)
2876 slot = &h->got_entries;
2877 else
2878 {
2879 /* This is a local .got entry -- record for merge. */
2880
2881 struct alpha_elf_got_entry **local_got_entries;
2882
2883 local_got_entries = alpha_elf_tdata(abfd)->local_got_entries;
2884 if (!local_got_entries)
2885 {
2886 bfd_size_type size;
2887 Elf_Internal_Shdr *symtab_hdr;
2888
2889 symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
2890 size = symtab_hdr->sh_info;
2891 size *= sizeof (struct alpha_elf_got_entry *);
2892
2893 local_got_entries
9bab7074 2894 = (struct alpha_elf_got_entry **) bfd_zalloc (abfd, size);
3765b1be
RH		 2895 if (!local_got_entries)
2896 return NULL;
2897
3765b1be
RH		 2898 alpha_elf_tdata (abfd)->local_got_entries = local_got_entries;
2899 }
2900
2901 slot = &local_got_entries[r_symndx];
2902 }
2903
2904 for (gotent = *slot; gotent ; gotent = gotent->next)
2905 if (gotent->gotobj == abfd
2906 && gotent->reloc_type == r_type
2907 && gotent->addend == r_addend)
2908 break;
2909
2910 if (!gotent)
2911 {
2912 int entry_size;
2913 bfd_size_type amt;
2914
2915 amt = sizeof (struct alpha_elf_got_entry);
2916 gotent = (struct alpha_elf_got_entry *) bfd_alloc (abfd, amt);
2917 if (!gotent)
2918 return NULL;
2919
2920 gotent->gotobj = abfd;
2921 gotent->addend = r_addend;
2922 gotent->got_offset = -1;
2923 gotent->use_count = 1;
2924 gotent->reloc_type = r_type;
2925 gotent->reloc_done = 0;
2926 gotent->reloc_xlated = 0;
2927
2928 gotent->next = *slot;
2929 *slot = gotent;
2930
2931 entry_size = alpha_got_entry_size (r_type);
2932 alpha_elf_tdata (abfd)->total_got_size += entry_size;
2933 if (!h)
2934 alpha_elf_tdata(abfd)->local_got_size += entry_size;
2935 }
2936 else
2937 gotent->use_count += 1;
2938
2939 return gotent;
2940}
2941
252b5132
RH		 2942/* Handle dynamic relocations when doing an Alpha ELF link. */
2943
b34976b6 2944static bfd_boolean
252b5132
RH		 2945elf64_alpha_check_relocs (abfd, info, sec, relocs)
2946 bfd *abfd;
2947 struct bfd_link_info *info;
2948 asection *sec;
2949 const Elf_Internal_Rela *relocs;
2950{
2951 bfd *dynobj;
2952 asection *sreloc;
2953 const char *rel_sec_name;
2954 Elf_Internal_Shdr *symtab_hdr;
2955 struct alpha_elf_link_hash_entry **sym_hashes;
252b5132 2956 const Elf_Internal_Rela *rel, *relend;
b34976b6 2957 bfd_boolean got_created;
dc810e39 2958 bfd_size_type amt;
252b5132 2959
1049f94e 2960 if (info->relocatable)
b34976b6 2961 return TRUE;
252b5132
RH		 2962
2963 dynobj = elf_hash_table(info)->dynobj;
2964 if (dynobj == NULL)
2965 elf_hash_table(info)->dynobj = dynobj = abfd;
2966
2967 sreloc = NULL;
2968 rel_sec_name = NULL;
2969 symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
2970 sym_hashes = alpha_elf_sym_hashes(abfd);
b34976b6 2971 got_created = FALSE;
252b5132
RH		 2972
2973 relend = relocs + sec->reloc_count;
2974 for (rel = relocs; rel < relend; ++rel)
2975 {
3765b1be
RH		 2976 enum {
2977 NEED_GOT = 1,
2978 NEED_GOT_ENTRY = 2,
2979 NEED_DYNREL = 4
2980 };
2981
252b5132
RH		 2982 unsigned long r_symndx, r_type;
2983 struct alpha_elf_link_hash_entry *h;
3765b1be 2984 unsigned int gotent_flags;
b34976b6 2985 bfd_boolean maybe_dynamic;
3765b1be
RH		 2986 unsigned int need;
2987 bfd_vma addend;
252b5132
RH		 2988
2989 r_symndx = ELF64_R_SYM (rel->r_info);
2990 if (r_symndx < symtab_hdr->sh_info)
2991 h = NULL;
2992 else
2993 {
2994 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2995
2996 while (h->root.root.type == bfd_link_hash_indirect
2997 || h->root.root.type == bfd_link_hash_warning)
2998 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
2999
f5385ebf 3000 h->root.ref_regular = 1;
252b5132 3001 }
3765b1be
RH		 3002
3003 /* We can only get preliminary data on whether a symbol is
3004 locally or externally defined, as not all of the input files
3005 have yet been processed. Do something with what we know, as
3006 this may help reduce memory usage and processing time later. */
b34976b6 3007 maybe_dynamic = FALSE;
3765b1be 3008 if (h && ((info->shared
560e09e9 3009 && (!info->symbolic || info->unresolved_syms_in_shared_libs == RM_IGNORE))
f5385ebf 3010 || !h->root.def_regular
c853d7f6 3011 || h->root.root.type == bfd_link_hash_defweak))
b34976b6 3012 maybe_dynamic = TRUE;
3765b1be
RH		 3013
3014 need = 0;
3015 gotent_flags = 0;
252b5132 3016 r_type = ELF64_R_TYPE (rel->r_info);
3765b1be 3017 addend = rel->r_addend;
252b5132
RH		 3018
3019 switch (r_type)
3020 {
3021 case R_ALPHA_LITERAL:
3765b1be
RH		 3022 need = NEED_GOT | NEED_GOT_ENTRY;
3023
3024 /* Remember how this literal is used from its LITUSEs.
3025 This will be important when it comes to decide if we can
3026 create a .plt entry for a function symbol. */
3027 while (++rel < relend && ELF64_R_TYPE (rel->r_info) == R_ALPHA_LITUSE)
3028 if (rel->r_addend >= 1 && rel->r_addend <= 5)
3029 gotent_flags |= 1 << rel->r_addend;
3030 --rel;
3031
3032 /* No LITUSEs -- presumably the address is used somehow. */
3033 if (gotent_flags == 0)
3034 gotent_flags = ALPHA_ELF_LINK_HASH_LU_ADDR;
3035 break;
252b5132
RH		 3036
3037 case R_ALPHA_GPDISP:
dfe57ca0 3038 case R_ALPHA_GPREL16:
252b5132
RH		 3039 case R_ALPHA_GPREL32:
3040 case R_ALPHA_GPRELHIGH:
3041 case R_ALPHA_GPRELLOW:
7793f4d0 3042 case R_ALPHA_BRSGP:
3765b1be
RH		 3043 need = NEED_GOT;
3044 break;
3045
3046 case R_ALPHA_REFLONG:
3047 case R_ALPHA_REFQUAD:
475c2a7e 3048 if ((info->shared && (sec->flags & SEC_ALLOC)) || maybe_dynamic)
3765b1be
RH		 3049 need = NEED_DYNREL;
3050 break;
3051
3765b1be 3052 case R_ALPHA_TLSLDM:
cc03ec80
RH		 3053 /* The symbol for a TLSLDM reloc is ignored. Collapse the
3054 reloc to the 0 symbol so that they all match. */
3055 r_symndx = 0;
3056 h = 0;
3057 maybe_dynamic = FALSE;
3058 /* FALLTHRU */
3059
3060 case R_ALPHA_TLSGD:
3765b1be
RH		 3061 case R_ALPHA_GOTDTPREL:
3062 need = NEED_GOT | NEED_GOT_ENTRY;
3063 break;
3064
3065 case R_ALPHA_GOTTPREL:
3066 need = NEED_GOT | NEED_GOT_ENTRY;
9e756d64 3067 gotent_flags = ALPHA_ELF_LINK_HASH_TLS_IE;
3765b1be
RH		 3068 if (info->shared)
3069 info->flags |= DF_STATIC_TLS;
3070 break;
3071
3072 case R_ALPHA_TPREL64:
3073 if (info->shared || maybe_dynamic)
3074 need = NEED_DYNREL;
3075 if (info->shared)
3076 info->flags |= DF_STATIC_TLS;
3077 break;
3078 }
3079
3080 if (need & NEED_GOT)
3081 {
252b5132
RH		 3082 if (!got_created)
3083 {
3084 if (!elf64_alpha_create_got_section (abfd, info))
b34976b6 3085 return FALSE;
252b5132
RH		 3086
3087 /* Make sure the object's gotobj is set to itself so
3088 that we default to every object with its own .got.
3089 We'll merge .gots later once we've collected each
3090 object's info. */
3091 alpha_elf_tdata(abfd)->gotobj = abfd;
3092
3093 got_created = 1;
3094 }
3765b1be 3095 }
252b5132 3096
3765b1be
RH		 3097 if (need & NEED_GOT_ENTRY)
3098 {
3099 struct alpha_elf_got_entry *gotent;
252b5132 3100
3765b1be
RH		 3101 gotent = get_got_entry (abfd, h, r_type, r_symndx, addend);
3102 if (!gotent)
b34976b6 3103 return FALSE;
3765b1be
RH		 3104
3105 if (gotent_flags)
3106 {
3107 gotent->flags |= gotent_flags;
3108 if (h)
3109 {
3110 gotent_flags |= h->flags;
3111 h->flags = gotent_flags;
3112
3113 /* Make a guess as to whether a .plt entry is needed. */
3114 if ((gotent_flags & ALPHA_ELF_LINK_HASH_LU_FUNC)
3115 && !(gotent_flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC))
f5385ebf 3116 h->root.needs_plt = 1;
3765b1be 3117 else
f5385ebf 3118 h->root.needs_plt = 0;
3765b1be
RH		 3119 }
3120 }
3121 }
3122
3123 if (need & NEED_DYNREL)
3124 {
252b5132
RH		 3125 if (rel_sec_name == NULL)
3126 {
3127 rel_sec_name = (bfd_elf_string_from_elf_section
3128 (abfd, elf_elfheader(abfd)->e_shstrndx,
3129 elf_section_data(sec)->rel_hdr.sh_name));
3130 if (rel_sec_name == NULL)
b34976b6 3131 return FALSE;
252b5132
RH		 3132
3133 BFD_ASSERT (strncmp (rel_sec_name, ".rela", 5) == 0
3134 && strcmp (bfd_get_section_name (abfd, sec),
3135 rel_sec_name+5) == 0);
3136 }
3137
3138 /* We need to create the section here now whether we eventually
3139 use it or not so that it gets mapped to an output section by
3140 the linker. If not used, we'll kill it in
3141 size_dynamic_sections. */
3142 if (sreloc == NULL)
3143 {
3144 sreloc = bfd_get_section_by_name (dynobj, rel_sec_name);
3145 if (sreloc == NULL)
3146 {
dc810e39
AM		 3147 flagword flags;
3148
252b5132 3149 sreloc = bfd_make_section (dynobj, rel_sec_name);
dc810e39
AM		 3150 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
3151 | SEC_LINKER_CREATED | SEC_READONLY);
3152 if (sec->flags & SEC_ALLOC)
3153 flags |= SEC_ALLOC | SEC_LOAD;
252b5132 3154 if (sreloc == NULL
dc810e39 3155 || !bfd_set_section_flags (dynobj, sreloc, flags)
252b5132 3156 || !bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3157 return FALSE;
252b5132
RH		 3158 }
3159 }
3160
3161 if (h)
3162 {
3163 /* Since we havn't seen all of the input symbols yet, we
3164 don't know whether we'll actually need a dynamic relocation
3165 entry for this reloc. So make a record of it. Once we
3166 find out if this thing needs dynamic relocation we'll
fe8bc63d 3167 expand the relocation sections by the appropriate amount. */
252b5132
RH		 3168
3169 struct alpha_elf_reloc_entry *rent;
3170
3171 for (rent = h->reloc_entries; rent; rent = rent->next)
3172 if (rent->rtype == r_type && rent->srel == sreloc)
3173 break;
3174
3175 if (!rent)
3176 {
dc810e39
AM		 3177 amt = sizeof (struct alpha_elf_reloc_entry);
3178 rent = (struct alpha_elf_reloc_entry *) bfd_alloc (abfd, amt);
252b5132 3179 if (!rent)
b34976b6 3180 return FALSE;
252b5132
RH		 3181
3182 rent->srel = sreloc;
3183 rent->rtype = r_type;
3184 rent->count = 1;
73896efb
RH		 3185 rent->reltext = ((sec->flags & (SEC_READONLY | SEC_ALLOC))
3186 == (SEC_READONLY | SEC_ALLOC));
252b5132
RH		 3187
3188 rent->next = h->reloc_entries;
3189 h->reloc_entries = rent;
3190 }
3191 else
3192 rent->count++;
3193 }
c853d7f6 3194 else if (info->shared)
252b5132 3195 {
c555c5c5
AM		 3196 /* If this is a shared library, and the section is to be
3197 loaded into memory, we need a RELATIVE reloc. */
eea6121a 3198 sreloc->size += sizeof (Elf64_External_Rela);
c853d7f6
RH		 3199 if ((sec->flags & (SEC_READONLY | SEC_ALLOC))
3200 == (SEC_READONLY | SEC_ALLOC))
fcfbdf31 3201 info->flags |= DF_TEXTREL;
252b5132 3202 }
252b5132
RH		 3203 }
3204 }
3205
b34976b6 3206 return TRUE;
252b5132
RH		 3207}
3208
3209/* Adjust a symbol defined by a dynamic object and referenced by a
3210 regular object. The current definition is in some section of the
3211 dynamic object, but we're not including those sections. We have to
3212 change the definition to something the rest of the link can
3213 understand. */
3214
b34976b6 3215static bfd_boolean
252b5132
RH		 3216elf64_alpha_adjust_dynamic_symbol (info, h)
3217 struct bfd_link_info *info;
3218 struct elf_link_hash_entry *h;
3219{
3220 bfd *dynobj;
3221 asection *s;
3222 struct alpha_elf_link_hash_entry *ah;
3223
3224 dynobj = elf_hash_table(info)->dynobj;
3225 ah = (struct alpha_elf_link_hash_entry *)h;
3226
3227 /* Now that we've seen all of the input symbols, finalize our decision
3228 about whether this symbol should get a .plt entry. */
3229
8ba89f17 3230 if (alpha_elf_dynamic_symbol_p (h, info)
252b5132
RH		 3231 && ((h->type == STT_FUNC
3232 && !(ah->flags & ALPHA_ELF_LINK_HASH_LU_ADDR))
3233 || (h->type == STT_NOTYPE
3765b1be
RH		 3234 && (ah->flags & ALPHA_ELF_LINK_HASH_LU_FUNC)
3235 && !(ah->flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC)))
252b5132
RH		 3236 /* Don't prevent otherwise valid programs from linking by attempting
3237 to create a new .got entry somewhere. A Correct Solution would be
3238 to add a new .got section to a new object file and let it be merged
3239 somewhere later. But for now don't bother. */
3240 && ah->got_entries)
3241 {
f5385ebf 3242 h->needs_plt = 1;
252b5132
RH		 3243
3244 s = bfd_get_section_by_name(dynobj, ".plt");
3245 if (!s && !elf64_alpha_create_dynamic_sections (dynobj, info))
b34976b6 3246 return FALSE;
252b5132
RH		 3247
3248 /* The first bit of the .plt is reserved. */
eea6121a
AM		 3249 if (s->size == 0)
3250 s->size = PLT_HEADER_SIZE;
252b5132 3251
eea6121a
AM		 3252 h->plt.offset = s->size;
3253 s->size += PLT_ENTRY_SIZE;
252b5132
RH		 3254
3255 /* If this symbol is not defined in a regular file, and we are not
3256 generating a shared library, then set the symbol to the location
3257 in the .plt. This is required to make function pointers compare
3258 equal between the normal executable and the shared library. */
3259 if (! info->shared
3260 && h->root.type != bfd_link_hash_defweak)
3261 {
cc03ec80
RH		 3262 ah->plt_old_section = h->root.u.def.section;
3263 ah->plt_old_value = h->root.u.def.value;
3264 ah->flags |= ALPHA_ELF_LINK_HASH_PLT_LOC;
252b5132
RH		 3265 h->root.u.def.section = s;
3266 h->root.u.def.value = h->plt.offset;
3267 }
3268
3269 /* We also need a JMP_SLOT entry in the .rela.plt section. */
3270 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3271 BFD_ASSERT (s != NULL);
eea6121a 3272 s->size += sizeof (Elf64_External_Rela);
252b5132 3273
b34976b6 3274 return TRUE;
252b5132
RH		 3275 }
3276 else
f5385ebf 3277 h->needs_plt = 0;
252b5132
RH		 3278
3279 /* If this is a weak symbol, and there is a real definition, the
3280 processor independent code will have arranged for us to see the
3281 real definition first, and we can just use the same value. */
f6e332e6 3282 if (h->u.weakdef != NULL)
252b5132 3283 {
f6e332e6
AM		 3284 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3285 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3286 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3287 h->root.u.def.value = h->u.weakdef->root.u.def.value;
b34976b6 3288 return TRUE;
252b5132
RH		 3289 }
3290
3291 /* This is a reference to a symbol defined by a dynamic object which
3292 is not a function. The Alpha, since it uses .got entries for all
3293 symbols even in regular objects, does not need the hackery of a
3294 .dynbss section and COPY dynamic relocations. */
3295
b34976b6 3296 return TRUE;
252b5132
RH		 3297}
3298
3299/* Symbol versioning can create new symbols, and make our old symbols
3300 indirect to the new ones. Consolidate the got and reloc information
3301 in these situations. */
3302
b34976b6 3303static bfd_boolean
252b5132
RH		 3304elf64_alpha_merge_ind_symbols (hi, dummy)
3305 struct alpha_elf_link_hash_entry *hi;
56fc028e 3306 PTR dummy ATTRIBUTE_UNUSED;
252b5132
RH		 3307{
3308 struct alpha_elf_link_hash_entry *hs;
3309
3310 if (hi->root.root.type != bfd_link_hash_indirect)
b34976b6 3311 return TRUE;
252b5132
RH		 3312 hs = hi;
3313 do {
3314 hs = (struct alpha_elf_link_hash_entry *)hs->root.root.u.i.link;
3315 } while (hs->root.root.type == bfd_link_hash_indirect);
3316
3317 /* Merge the flags. Whee. */
3318
3319 hs->flags |= hi->flags;
3320
3321 /* Merge the .got entries. Cannibalize the old symbol's list in
3322 doing so, since we don't need it anymore. */
3323
3324 if (hs->got_entries == NULL)
3325 hs->got_entries = hi->got_entries;
3326 else
3327 {
3328 struct alpha_elf_got_entry *gi, *gs, *gin, *gsh;
3329
3330 gsh = hs->got_entries;
3331 for (gi = hi->got_entries; gi ; gi = gin)
3332 {
3333 gin = gi->next;
3334 for (gs = gsh; gs ; gs = gs->next)
3765b1be
RH		 3335 if (gi->gotobj == gs->gotobj
3336 && gi->reloc_type == gs->reloc_type
3337 && gi->addend == gs->addend)
3338 {
3339 gi->use_count += gs->use_count;
3340 goto got_found;
3341 }
252b5132
RH		 3342 gi->next = hs->got_entries;
3343 hs->got_entries = gi;
3344 got_found:;
3345 }
3346 }
3347 hi->got_entries = NULL;
3348
3349 /* And similar for the reloc entries. */
3350
3351 if (hs->reloc_entries == NULL)
3352 hs->reloc_entries = hi->reloc_entries;
3353 else
3354 {
3355 struct alpha_elf_reloc_entry *ri, *rs, *rin, *rsh;
3356
3357 rsh = hs->reloc_entries;
3358 for (ri = hi->reloc_entries; ri ; ri = rin)
3359 {
3360 rin = ri->next;
3361 for (rs = rsh; rs ; rs = rs->next)
82988bff 3362 if (ri->rtype == rs->rtype && ri->srel == rs->srel)
252b5132
RH		 3363 {
3364 rs->count += ri->count;
3365 goto found_reloc;
3366 }
3367 ri->next = hs->reloc_entries;
3368 hs->reloc_entries = ri;
3369 found_reloc:;
3370 }
3371 }
3372 hi->reloc_entries = NULL;
3373
b34976b6 3374 return TRUE;
252b5132
RH		 3375}
3376
3377/* Is it possible to merge two object file's .got tables? */
3378
b34976b6 3379static bfd_boolean
252b5132
RH		 3380elf64_alpha_can_merge_gots (a, b)
3381 bfd *a, *b;
3382{
3765b1be 3383 int total = alpha_elf_tdata (a)->total_got_size;
252b5132
RH		 3384 bfd *bsub;
3385
3386 /* Trivial quick fallout test. */
3765b1be 3387 if (total + alpha_elf_tdata (b)->total_got_size <= MAX_GOT_SIZE)
b34976b6 3388 return TRUE;
252b5132
RH		 3389
3390 /* By their nature, local .got entries cannot be merged. */
3765b1be 3391 if ((total += alpha_elf_tdata (b)->local_got_size) > MAX_GOT_SIZE)
b34976b6 3392 return FALSE;
252b5132
RH		 3393
3394 /* Failing the common trivial comparison, we must effectively
3395 perform the merge. Not actually performing the merge means that
3396 we don't have to store undo information in case we fail. */
3397 for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
3398 {
3399 struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes (bsub);
3400 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
3401 int i, n;
3402
d9bc7a44 3403 n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
252b5132
RH		 3404 for (i = 0; i < n; ++i)
3405 {
3406 struct alpha_elf_got_entry *ae, *be;
3407 struct alpha_elf_link_hash_entry *h;
3408
3409 h = hashes[i];
3410 while (h->root.root.type == bfd_link_hash_indirect
3411 || h->root.root.type == bfd_link_hash_warning)
3412 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
3413
3414 for (be = h->got_entries; be ; be = be->next)
3415 {
3416 if (be->use_count == 0)
3417 continue;
3418 if (be->gotobj != b)
3419 continue;
3420
3421 for (ae = h->got_entries; ae ; ae = ae->next)
3765b1be
RH		 3422 if (ae->gotobj == a
3423 && ae->reloc_type == be->reloc_type
3424 && ae->addend == be->addend)
252b5132
RH		 3425 goto global_found;
3426
3765b1be
RH		 3427 total += alpha_got_entry_size (be->reloc_type);
3428 if (total > MAX_GOT_SIZE)
b34976b6 3429 return FALSE;
252b5132
RH		 3430 global_found:;
3431 }
3432 }
3433 }
3434
b34976b6 3435 return TRUE;
252b5132
RH		 3436}
3437
3438/* Actually merge two .got tables. */
3439
3440static void
3441elf64_alpha_merge_gots (a, b)
3442 bfd *a, *b;
3443{
3765b1be 3444 int total = alpha_elf_tdata (a)->total_got_size;
252b5132
RH		 3445 bfd *bsub;
3446
3447 /* Remember local expansion. */
3448 {
3765b1be 3449 int e = alpha_elf_tdata (b)->local_got_size;
252b5132 3450 total += e;
3765b1be 3451 alpha_elf_tdata (a)->local_got_size += e;
252b5132
RH		 3452 }
3453
3454 for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
3455 {
3456 struct alpha_elf_got_entry **local_got_entries;
3457 struct alpha_elf_link_hash_entry **hashes;
3458 Elf_Internal_Shdr *symtab_hdr;
3459 int i, n;
3460
3461 /* Let the local .got entries know they are part of a new subsegment. */
3462 local_got_entries = alpha_elf_tdata (bsub)->local_got_entries;
3463 if (local_got_entries)
3464 {
3465 n = elf_tdata (bsub)->symtab_hdr.sh_info;
3466 for (i = 0; i < n; ++i)
3467 {
3468 struct alpha_elf_got_entry *ent;
3469 for (ent = local_got_entries[i]; ent; ent = ent->next)
3470 ent->gotobj = a;
3471 }
3472 }
3473
3474 /* Merge the global .got entries. */
3475 hashes = alpha_elf_sym_hashes (bsub);
3476 symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
3477
d9bc7a44 3478 n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
252b5132
RH		 3479 for (i = 0; i < n; ++i)
3480 {
3481 struct alpha_elf_got_entry *ae, *be, **pbe, **start;
3482 struct alpha_elf_link_hash_entry *h;
3483
3484 h = hashes[i];
3485 while (h->root.root.type == bfd_link_hash_indirect
3486 || h->root.root.type == bfd_link_hash_warning)
3487 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
3488
3489 start = &h->got_entries;
3490 for (pbe = start, be = *start; be ; pbe = &be->next, be = be->next)
3491 {
3492 if (be->use_count == 0)
3493 {
3494 *pbe = be->next;
3495 continue;
3496 }
3497 if (be->gotobj != b)
3498 continue;
3499
3500 for (ae = *start; ae ; ae = ae->next)
3765b1be
RH		 3501 if (ae->gotobj == a
3502 && ae->reloc_type == be->reloc_type
3503 && ae->addend == be->addend)
252b5132
RH		 3504 {
3505 ae->flags |= be->flags;
3506 ae->use_count += be->use_count;
3507 *pbe = be->next;
3508 goto global_found;
3509 }
3510 be->gotobj = a;
3765b1be 3511 total += alpha_got_entry_size (be->reloc_type);
252b5132
RH		 3512
3513 global_found:;
3514 }
3515 }
3516
3517 alpha_elf_tdata (bsub)->gotobj = a;
3518 }
3765b1be 3519 alpha_elf_tdata (a)->total_got_size = total;
252b5132
RH		 3520
3521 /* Merge the two in_got chains. */
3522 {
3523 bfd *next;
3524
3525 bsub = a;
3526 while ((next = alpha_elf_tdata (bsub)->in_got_link_next) != NULL)
3527 bsub = next;
3528
3529 alpha_elf_tdata (bsub)->in_got_link_next = b;
3530 }
3531}
3532
3533/* Calculate the offsets for the got entries. */
3534
b34976b6 3535static bfd_boolean
252b5132
RH		 3536elf64_alpha_calc_got_offsets_for_symbol (h, arg)
3537 struct alpha_elf_link_hash_entry *h;
52b9d213 3538 PTR arg ATTRIBUTE_UNUSED;
252b5132 3539{
0d5f9994 3540 bfd_boolean result = TRUE;
252b5132
RH		 3541 struct alpha_elf_got_entry *gotent;
3542
e92d460e
AM		 3543 if (h->root.root.type == bfd_link_hash_warning)
3544 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3545
252b5132
RH		 3546 for (gotent = h->got_entries; gotent; gotent = gotent->next)
3547 if (gotent->use_count > 0)
3548 {
0d5f9994
NC		 3549 struct alpha_elf_obj_tdata *td;
3550 bfd_size_type *plge;
252b5132 3551
0d5f9994
NC		 3552 td = alpha_elf_tdata (gotent->gotobj);
3553 if (td == NULL)
3554 {
3555 _bfd_error_handler (_("Symbol %s has no GOT subsection for offset 0x%x"),
3556 h->root.root.root.string, gotent->got_offset);
3557 result = FALSE;
3558 continue;
3559 }
eea6121a 3560 plge = &td->got->size;
252b5132 3561 gotent->got_offset = *plge;
3765b1be 3562 *plge += alpha_got_entry_size (gotent->reloc_type);
252b5132
RH		 3563 }
3564
0d5f9994 3565 return result;
252b5132
RH		 3566}
3567
3568static void
3569elf64_alpha_calc_got_offsets (info)
3570 struct bfd_link_info *info;
3571{
3572 bfd *i, *got_list = alpha_elf_hash_table(info)->got_list;
3573
3574 /* First, zero out the .got sizes, as we may be recalculating the
3575 .got after optimizing it. */
3576 for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
eea6121a 3577 alpha_elf_tdata(i)->got->size = 0;
252b5132
RH		 3578
3579 /* Next, fill in the offsets for all the global entries. */
3580 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3581 elf64_alpha_calc_got_offsets_for_symbol,
3582 NULL);
3583
3584 /* Finally, fill in the offsets for the local entries. */
3585 for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
3586 {
eea6121a 3587 bfd_size_type got_offset = alpha_elf_tdata(i)->got->size;
252b5132
RH		 3588 bfd *j;
3589
3590 for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
3591 {
3592 struct alpha_elf_got_entry **local_got_entries, *gotent;
3593 int k, n;
3594
3595 local_got_entries = alpha_elf_tdata(j)->local_got_entries;
3596 if (!local_got_entries)
3597 continue;
3598
3599 for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
3600 for (gotent = local_got_entries[k]; gotent; gotent = gotent->next)
3601 if (gotent->use_count > 0)
3602 {
3603 gotent->got_offset = got_offset;
3765b1be 3604 got_offset += alpha_got_entry_size (gotent->reloc_type);
252b5132
RH		 3605 }
3606 }
3607
eea6121a 3608 alpha_elf_tdata(i)->got->size = got_offset;
252b5132
RH		 3609 }
3610}
3611
3612/* Constructs the gots. */
3613
b34976b6 3614static bfd_boolean
f44f99a5 3615elf64_alpha_size_got_sections (info)
252b5132
RH		 3616 struct bfd_link_info *info;
3617{
52b9d213 3618 bfd *i, *got_list, *cur_got_obj = NULL;
252b5132
RH		 3619 int something_changed = 0;
3620
3621 got_list = alpha_elf_hash_table (info)->got_list;
3622
3623 /* On the first time through, pretend we have an existing got list
3624 consisting of all of the input files. */
3625 if (got_list == NULL)
3626 {
3627 for (i = info->input_bfds; i ; i = i->link_next)
3628 {
3629 bfd *this_got = alpha_elf_tdata (i)->gotobj;
3630 if (this_got == NULL)
3631 continue;
3632
4cc11e76 3633 /* We are assuming no merging has yet occurred. */
252b5132
RH		 3634 BFD_ASSERT (this_got == i);
3635
3765b1be 3636 if (alpha_elf_tdata (this_got)->total_got_size > MAX_GOT_SIZE)
252b5132
RH		 3637 {
3638 /* Yikes! A single object file has too many entries. */
3639 (*_bfd_error_handler)
d003868e
AM		 3640 (_("%B: .got subsegment exceeds 64K (size %d)"),
3641 i, alpha_elf_tdata (this_got)->total_got_size);
b34976b6 3642 return FALSE;
252b5132
RH		 3643 }
3644
3645 if (got_list == NULL)
3646 got_list = this_got;
3647 else
3648 alpha_elf_tdata(cur_got_obj)->got_link_next = this_got;
3649 cur_got_obj = this_got;
3650 }
3651
3652 /* Strange degenerate case of no got references. */
3653 if (got_list == NULL)
b34976b6 3654 return TRUE;
252b5132
RH		 3655
3656 alpha_elf_hash_table (info)->got_list = got_list;
3657
3658 /* Force got offsets to be recalculated. */
3659 something_changed = 1;
3660 }
3661
3662 cur_got_obj = got_list;
3663 i = alpha_elf_tdata(cur_got_obj)->got_link_next;
3664 while (i != NULL)
3665 {
3666 if (elf64_alpha_can_merge_gots (cur_got_obj, i))
3667 {
3668 elf64_alpha_merge_gots (cur_got_obj, i);
3669 i = alpha_elf_tdata(i)->got_link_next;
3670 alpha_elf_tdata(cur_got_obj)->got_link_next = i;
3671 something_changed = 1;
3672 }
3673 else
3674 {
3675 cur_got_obj = i;
3676 i = alpha_elf_tdata(i)->got_link_next;
3677 }
3678 }
3679
3680 /* Once the gots have been merged, fill in the got offsets for
3681 everything therein. */
3682 if (1 || something_changed)
3683 elf64_alpha_calc_got_offsets (info);
3684
b34976b6 3685 return TRUE;
252b5132
RH		 3686}
3687
cedb70c5 3688/* Called from relax_section to rebuild the PLT in light of
f44f99a5
RH		 3689 potential changes in the function's status. */
3690
b34976b6 3691static bfd_boolean
f44f99a5
RH		 3692elf64_alpha_size_plt_section (info)
3693 struct bfd_link_info *info;
3694{
3695 asection *splt, *spltrel;
3696 unsigned long entries;
3697 bfd *dynobj;
3698
3699 dynobj = elf_hash_table(info)->dynobj;
3700 splt = bfd_get_section_by_name(dynobj, ".plt");
3701 if (splt == NULL)
b34976b6 3702 return TRUE;
f44f99a5 3703
eea6121a 3704 splt->size = 0;
f44f99a5
RH		 3705
3706 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3707 elf64_alpha_size_plt_section_1, splt);
3708
f44f99a5
RH		 3709 /* Every plt entry requires a JMP_SLOT relocation. */
3710 spltrel = bfd_get_section_by_name (dynobj, ".rela.plt");
eea6121a
AM		 3711 if (splt->size)
3712 entries = (splt->size - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
f44f99a5
RH		 3713 else
3714 entries = 0;
eea6121a 3715 spltrel->size = entries * sizeof (Elf64_External_Rela);
f44f99a5 3716
b34976b6 3717 return TRUE;
f44f99a5
RH		 3718}
3719
b34976b6 3720static bfd_boolean
f44f99a5
RH		 3721elf64_alpha_size_plt_section_1 (h, data)
3722 struct alpha_elf_link_hash_entry *h;
3723 PTR data;
3724{
3725 asection *splt = (asection *) data;
3726 struct alpha_elf_got_entry *gotent;
3727
3728 /* If we didn't need an entry before, we still don't. */
f5385ebf 3729 if (!h->root.needs_plt)
b34976b6 3730 return TRUE;
f44f99a5
RH		 3731
3732 /* There must still be a LITERAL got entry for the function. */
3733 for (gotent = h->got_entries; gotent ; gotent = gotent->next)
3734 if (gotent->reloc_type == R_ALPHA_LITERAL
3735 && gotent->use_count > 0)
3736 break;
3737
3738 /* If there is, reset the PLT offset. If not, there's no longer
3739 a need for the PLT entry. */
3740 if (gotent)
3741 {
eea6121a
AM		 3742 if (splt->size == 0)
3743 splt->size = PLT_HEADER_SIZE;
3744 h->root.plt.offset = splt->size;
3745 splt->size += PLT_ENTRY_SIZE;
f44f99a5
RH		 3746 }
3747 else
3748 {
f5385ebf 3749 h->root.needs_plt = 0;
f44f99a5 3750 h->root.plt.offset = -1;
cc03ec80
RH		 3751
3752 /* Undo the definition frobbing begun in adjust_dynamic_symbol. */
3753 if (h->flags & ALPHA_ELF_LINK_HASH_PLT_LOC)
3754 {
3755 h->root.root.u.def.section = h->plt_old_section;
3756 h->root.root.u.def.value = h->plt_old_value;
3757 h->flags &= ~ALPHA_ELF_LINK_HASH_PLT_LOC;
3758 }
f44f99a5
RH		 3759 }
3760
b34976b6 3761 return TRUE;
f44f99a5
RH		 3762}
3763
b34976b6 3764static bfd_boolean
252b5132 3765elf64_alpha_always_size_sections (output_bfd, info)
f44f99a5 3766 bfd *output_bfd ATTRIBUTE_UNUSED;
252b5132
RH		 3767 struct bfd_link_info *info;
3768{
3769 bfd *i;
3770
1049f94e 3771 if (info->relocatable)
b34976b6 3772 return TRUE;
252b5132
RH		 3773
3774 /* First, take care of the indirect symbols created by versioning. */
3775 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3776 elf64_alpha_merge_ind_symbols,
3777 NULL);
3778
f44f99a5 3779 if (!elf64_alpha_size_got_sections (info))
b34976b6 3780 return FALSE;
252b5132
RH		 3781
3782 /* Allocate space for all of the .got subsections. */
3783 i = alpha_elf_hash_table (info)->got_list;
3784 for ( ; i ; i = alpha_elf_tdata(i)->got_link_next)
3785 {
3786 asection *s = alpha_elf_tdata(i)->got;
eea6121a 3787 if (s->size > 0)
252b5132 3788 {
eea6121a 3789 s->contents = (bfd_byte *) bfd_zalloc (i, s->size);
252b5132 3790 if (s->contents == NULL)
b34976b6 3791 return FALSE;
252b5132
RH		 3792 }
3793 }
3794
b34976b6 3795 return TRUE;
252b5132
RH		 3796}
3797
3765b1be
RH		 3798/* The number of dynamic relocations required by a static relocation. */
3799
3800static int
3801alpha_dynamic_entries_for_reloc (r_type, dynamic, shared)
3802 int r_type, dynamic, shared;
3803{
3804 switch (r_type)
3805 {
3806 /* May appear in GOT entries. */
3807 case R_ALPHA_TLSGD:
3808 return (dynamic ? 2 : shared ? 1 : 0);
3809 case R_ALPHA_TLSLDM:
3810 return shared;
3811 case R_ALPHA_LITERAL:
1bbc9cec 3812 case R_ALPHA_GOTTPREL:
3765b1be
RH		 3813 return dynamic || shared;
3814 case R_ALPHA_GOTDTPREL:
3765b1be
RH		 3815 return dynamic;
3816
3817 /* May appear in data sections. */
3818 case R_ALPHA_REFLONG:
3819 case R_ALPHA_REFQUAD:
3765b1be 3820 case R_ALPHA_TPREL64:
1bbc9cec 3821 return dynamic || shared;
3765b1be
RH		 3822
3823 /* Everything else is illegal. We'll issue an error during
3824 relocate_section. */
3825 default:
3826 return 0;
3827 }
3828}
3829
252b5132
RH		 3830/* Work out the sizes of the dynamic relocation entries. */
3831
b34976b6 3832static bfd_boolean
252b5132
RH		 3833elf64_alpha_calc_dynrel_sizes (h, info)
3834 struct alpha_elf_link_hash_entry *h;
3835 struct bfd_link_info *info;
3836{
b34976b6 3837 bfd_boolean dynamic;
3765b1be 3838 struct alpha_elf_reloc_entry *relent;
f44f99a5 3839 unsigned long entries;
3765b1be 3840
e92d460e
AM		 3841 if (h->root.root.type == bfd_link_hash_warning)
3842 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3843
252b5132
RH		 3844 /* If the symbol was defined as a common symbol in a regular object
3845 file, and there was no definition in any dynamic object, then the
3846 linker will have allocated space for the symbol in a common
3847 section but the ELF_LINK_HASH_DEF_REGULAR flag will not have been
3848 set. This is done for dynamic symbols in
3849 elf_adjust_dynamic_symbol but this is not done for non-dynamic
3850 symbols, somehow. */
f5385ebf
AM		 3851 if (!h->root.def_regular
3852 && h->root.ref_regular
3853 && !h->root.def_dynamic
252b5132
RH		 3854 && (h->root.root.type == bfd_link_hash_defined
3855 || h->root.root.type == bfd_link_hash_defweak)
3856 && !(h->root.root.u.def.section->owner->flags & DYNAMIC))
f5385ebf 3857 h->root.def_regular = 1;
252b5132
RH		 3858
3859 /* If the symbol is dynamic, we'll need all the relocations in their
3860 natural form. If this is a shared object, and it has been forced
3861 local, we'll need the same number of RELATIVE relocations. */
3862
3765b1be 3863 dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
252b5132 3864
3765b1be
RH		 3865 for (relent = h->reloc_entries; relent; relent = relent->next)
3866 {
3867 entries = alpha_dynamic_entries_for_reloc (relent->rtype, dynamic,
3868 info->shared);
3869 if (entries)
3870 {
eea6121a 3871 relent->srel->size +=
3765b1be
RH		 3872 entries * sizeof (Elf64_External_Rela) * relent->count;
3873 if (relent->reltext)
3874 info->flags |= DT_TEXTREL;
3875 }
3876 }
252b5132 3877
b34976b6 3878 return TRUE;
f44f99a5
RH		 3879}
3880
3881/* Set the sizes of the dynamic relocation sections. */
3882
b34976b6 3883static bfd_boolean
f44f99a5
RH		 3884elf64_alpha_size_rela_got_section (info)
3885 struct bfd_link_info *info;
3886{
3887 unsigned long entries;
3888 bfd *i, *dynobj;
3889 asection *srel;
3890
3891 /* Shared libraries often require RELATIVE relocs, and some relocs
3892 require attention for the main application as well. */
cedb70c5 3893
f44f99a5
RH		 3894 entries = 0;
3895 for (i = alpha_elf_hash_table(info)->got_list;
3896 i ; i = alpha_elf_tdata(i)->got_link_next)
3897 {
3898 bfd *j;
3899
3900 for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
3901 {
3902 struct alpha_elf_got_entry **local_got_entries, *gotent;
3903 int k, n;
3904
3905 local_got_entries = alpha_elf_tdata(j)->local_got_entries;
3906 if (!local_got_entries)
3907 continue;
3908
3909 for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
3910 for (gotent = local_got_entries[k];
3911 gotent ; gotent = gotent->next)
3912 if (gotent->use_count > 0)
3913 entries += (alpha_dynamic_entries_for_reloc
3914 (gotent->reloc_type, 0, info->shared));
3915 }
3916 }
3917
3918 dynobj = elf_hash_table(info)->dynobj;
3919 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3920 if (!srel)
3921 {
3922 BFD_ASSERT (entries == 0);
b34976b6 3923 return TRUE;
f44f99a5 3924 }
eea6121a 3925 srel->size = sizeof (Elf64_External_Rela) * entries;
f44f99a5
RH		 3926
3927 /* Now do the non-local symbols. */
3928 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3929 elf64_alpha_size_rela_got_1, info);
3930
b34976b6 3931 return TRUE;
f44f99a5
RH		 3932}
3933
3934/* Subroutine of elf64_alpha_size_rela_got_section for doing the
3935 global symbols. */
3936
b34976b6 3937static bfd_boolean
f44f99a5
RH		 3938elf64_alpha_size_rela_got_1 (h, info)
3939 struct alpha_elf_link_hash_entry *h;
3940 struct bfd_link_info *info;
3941{
b34976b6 3942 bfd_boolean dynamic;
f44f99a5
RH		 3943 struct alpha_elf_got_entry *gotent;
3944 unsigned long entries;
3945
3946 if (h->root.root.type == bfd_link_hash_warning)
3947 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3948
3949 /* If the symbol is dynamic, we'll need all the relocations in their
3950 natural form. If this is a shared object, and it has been forced
3951 local, we'll need the same number of RELATIVE relocations. */
3952
3953 dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
3954
3765b1be
RH		 3955 entries = 0;
3956 for (gotent = h->got_entries; gotent ; gotent = gotent->next)
f44f99a5
RH		 3957 if (gotent->use_count > 0)
3958 entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type,
3959 dynamic, info->shared);
252b5132 3960
3765b1be
RH		 3961 /* If we are using a .plt entry, subtract one, as the first
3962 reference uses a .rela.plt entry instead. */
3963 if (h->root.plt.offset != MINUS_ONE)
3964 entries--;
252b5132 3965
3765b1be
RH		 3966 if (entries > 0)
3967 {
3968 bfd *dynobj = elf_hash_table(info)->dynobj;
3969 asection *srel = bfd_get_section_by_name (dynobj, ".rela.got");
3970 BFD_ASSERT (srel != NULL);
eea6121a 3971 srel->size += sizeof (Elf64_External_Rela) * entries;
252b5132
RH		 3972 }
3973
b34976b6 3974 return TRUE;
252b5132
RH		 3975}
3976
3977/* Set the sizes of the dynamic sections. */
3978
b34976b6 3979static bfd_boolean
252b5132 3980elf64_alpha_size_dynamic_sections (output_bfd, info)
24a35864 3981 bfd *output_bfd ATTRIBUTE_UNUSED;
252b5132
RH		 3982 struct bfd_link_info *info;
3983{
3984 bfd *dynobj;
3985 asection *s;
b34976b6 3986 bfd_boolean relplt;
252b5132
RH		 3987
3988 dynobj = elf_hash_table(info)->dynobj;
3989 BFD_ASSERT(dynobj != NULL);
3990
3991 if (elf_hash_table (info)->dynamic_sections_created)
3992 {
3993 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 3994 if (info->executable)
252b5132
RH		 3995 {
3996 s = bfd_get_section_by_name (dynobj, ".interp");
3997 BFD_ASSERT (s != NULL);
eea6121a 3998 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
252b5132
RH		 3999 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4000 }
4001
4002 /* Now that we've seen all of the input files, we can decide which
4003 symbols need dynamic relocation entries and which don't. We've
4004 collected information in check_relocs that we can now apply to
4005 size the dynamic relocation sections. */
4006 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
f44f99a5 4007 elf64_alpha_calc_dynrel_sizes, info);
252b5132 4008
f44f99a5 4009 elf64_alpha_size_rela_got_section (info);
252b5132
RH		 4010 }
4011 /* else we're not dynamic and by definition we don't need such things. */
4012
4013 /* The check_relocs and adjust_dynamic_symbol entry points have
4014 determined the sizes of the various dynamic sections. Allocate
4015 memory for them. */
b34976b6 4016 relplt = FALSE;
252b5132
RH		 4017 for (s = dynobj->sections; s != NULL; s = s->next)
4018 {
4019 const char *name;
b34976b6 4020 bfd_boolean strip;
252b5132
RH		 4021
4022 if (!(s->flags & SEC_LINKER_CREATED))
4023 continue;
4024
4025 /* It's OK to base decisions on the section name, because none
4026 of the dynobj section names depend upon the input files. */
4027 name = bfd_get_section_name (dynobj, s);
4028
4029 /* If we don't need this section, strip it from the output file.
4030 This is to handle .rela.bss and .rela.plt. We must create it
4031 in create_dynamic_sections, because it must be created before
4032 the linker maps input sections to output sections. The
4033 linker does that before adjust_dynamic_symbol is called, and
4034 it is that function which decides whether anything needs to
4035 go into these sections. */
4036
b34976b6 4037 strip = FALSE;
252b5132
RH		 4038
4039 if (strncmp (name, ".rela", 5) == 0)
4040 {
eea6121a 4041 strip = (s->size == 0);
252b5132
RH		 4042
4043 if (!strip)
4044 {
252b5132 4045 if (strcmp(name, ".rela.plt") == 0)
b34976b6 4046 relplt = TRUE;
252b5132
RH		 4047
4048 /* We use the reloc_count field as a counter if we need
4049 to copy relocs into the output file. */
4050 s->reloc_count = 0;
4051 }
4052 }
4053 else if (strcmp (name, ".plt") != 0)
4054 {
4055 /* It's not one of our dynamic sections, so don't allocate space. */
4056 continue;
4057 }
4058
4059 if (strip)
7f8d5fc9 4060 _bfd_strip_section_from_output (info, s);
252b5132
RH		 4061 else
4062 {
4063 /* Allocate memory for the section contents. */
eea6121a
AM		 4064 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
4065 if (s->contents == NULL && s->size != 0)
b34976b6 4066 return FALSE;
252b5132
RH		 4067 }
4068 }
4069
252b5132
RH		 4070 if (elf_hash_table (info)->dynamic_sections_created)
4071 {
4072 /* Add some entries to the .dynamic section. We fill in the
4073 values later, in elf64_alpha_finish_dynamic_sections, but we
4074 must add the entries now so that we get the correct size for
4075 the .dynamic section. The DT_DEBUG entry is filled in by the
4076 dynamic linker and used by the debugger. */
dc810e39 4077#define add_dynamic_entry(TAG, VAL) \
5a580b3a 4078 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 4079
36af4a4e 4080 if (info->executable)
252b5132 4081 {
dc810e39 4082 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 4083 return FALSE;
252b5132
RH		 4084 }
4085
252b5132
RH		 4086 if (relplt)
4087 {
c0647bfc
JT		 4088 if (!add_dynamic_entry (DT_PLTGOT, 0)
4089 || !add_dynamic_entry (DT_PLTRELSZ, 0)
dc810e39
AM		 4090 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
4091 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 4092 return FALSE;
252b5132
RH		 4093 }
4094
dc810e39
AM		 4095 if (!add_dynamic_entry (DT_RELA, 0)
4096 || !add_dynamic_entry (DT_RELASZ, 0)
4097 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 4098 return FALSE;
252b5132 4099
fcfbdf31 4100 if (info->flags & DF_TEXTREL)
252b5132 4101 {
dc810e39 4102 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 4103 return FALSE;
252b5132
RH		 4104 }
4105 }
dc810e39 4106#undef add_dynamic_entry
252b5132 4107
b34976b6 4108 return TRUE;
252b5132
RH		 4109}
4110
1bbc9cec
RH		 4111/* Emit a dynamic relocation for (DYNINDX, RTYPE, ADDEND) at (SEC, OFFSET)
4112 into the next available slot in SREL. */
4113
4114static void
4115elf64_alpha_emit_dynrel (abfd, info, sec, srel, offset, dynindx, rtype, addend)
4116 bfd *abfd;
4117 struct bfd_link_info *info;
4118 asection *sec, *srel;
4119 bfd_vma offset, addend;
4120 long dynindx, rtype;
4121{
4122 Elf_Internal_Rela outrel;
4123 bfd_byte *loc;
4124
4125 BFD_ASSERT (srel != NULL);
4126
4127 outrel.r_info = ELF64_R_INFO (dynindx, rtype);
4128 outrel.r_addend = addend;
4129
4130 offset = _bfd_elf_section_offset (abfd, info, sec, offset);
4131 if ((offset | 1) != (bfd_vma) -1)
4132 outrel.r_offset = sec->output_section->vma + sec->output_offset + offset;
4133 else
4134 memset (&outrel, 0, sizeof (outrel));
4135
4136 loc = srel->contents;
4137 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
4138 bfd_elf64_swap_reloca_out (abfd, &outrel, loc);
eea6121a 4139 BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count <= srel->size);
1bbc9cec
RH		 4140}
4141
4a67a098
RH		 4142/* Relocate an Alpha ELF section for a relocatable link.
4143
4144 We don't have to change anything unless the reloc is against a section
4145 symbol, in which case we have to adjust according to where the section
4146 symbol winds up in the output section. */
4147
b34976b6 4148static bfd_boolean
4a67a098
RH		 4149elf64_alpha_relocate_section_r (output_bfd, info, input_bfd, input_section,
4150 contents, relocs, local_syms, local_sections)
4151 bfd *output_bfd ATTRIBUTE_UNUSED;
4152 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4153 bfd *input_bfd;
4154 asection *input_section;
4155 bfd_byte *contents ATTRIBUTE_UNUSED;
4156 Elf_Internal_Rela *relocs;
4157 Elf_Internal_Sym *local_syms;
4158 asection **local_sections;
4159{
4160 unsigned long symtab_hdr_sh_info;
4161 Elf_Internal_Rela *rel;
4162 Elf_Internal_Rela *relend;
b34976b6 4163 bfd_boolean ret_val = TRUE;
4a67a098
RH		 4164
4165 symtab_hdr_sh_info = elf_tdata (input_bfd)->symtab_hdr.sh_info;
4166
4167 relend = relocs + input_section->reloc_count;
4168 for (rel = relocs; rel < relend; rel++)
4169 {
4170 unsigned long r_symndx;
4171 Elf_Internal_Sym *sym;
4172 asection *sec;
4173 unsigned long r_type;
4174
4175 r_type = ELF64_R_TYPE(rel->r_info);
4176 if (r_type >= R_ALPHA_max)
4177 {
4178 (*_bfd_error_handler)
d003868e
AM		 4179 (_("%B: unknown relocation type %d"),
4180 input_bfd, (int) r_type);
4a67a098 4181 bfd_set_error (bfd_error_bad_value);
b34976b6 4182 ret_val = FALSE;
4a67a098
RH		 4183 continue;
4184 }
4185
4186 r_symndx = ELF64_R_SYM(rel->r_info);
4187
4188 /* The symbol associated with GPDISP and LITUSE is
4189 immaterial. Only the addend is significant. */
4190 if (r_type == R_ALPHA_GPDISP || r_type == R_ALPHA_LITUSE)
4191 continue;
4192
4193 if (r_symndx < symtab_hdr_sh_info)
4194 {
4195 sym = local_syms + r_symndx;
4196 if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
4197 {
4198 sec = local_sections[r_symndx];
4199 rel->r_addend += sec->output_offset + sym->st_value;
4200 }
4201 }
4202 }
4203
4204 return ret_val;
4205}
4206
252b5132
RH		 4207/* Relocate an Alpha ELF section. */
4208
b34976b6 4209static bfd_boolean
252b5132
RH		 4210elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
4211 contents, relocs, local_syms, local_sections)
4212 bfd *output_bfd;
4213 struct bfd_link_info *info;
4214 bfd *input_bfd;
4215 asection *input_section;
4216 bfd_byte *contents;
4217 Elf_Internal_Rela *relocs;
4218 Elf_Internal_Sym *local_syms;
4219 asection **local_sections;
4220{
4a67a098 4221 Elf_Internal_Shdr *symtab_hdr;
252b5132
RH		 4222 Elf_Internal_Rela *rel;
4223 Elf_Internal_Rela *relend;
4a67a098
RH		 4224 asection *sgot, *srel, *srelgot;
4225 bfd *dynobj, *gotobj;
4226 bfd_vma gp, tp_base, dtp_base;
4227 struct alpha_elf_got_entry **local_got_entries;
b34976b6 4228 bfd_boolean ret_val;
4a67a098 4229 const char *section_name;
252b5132 4230
4a67a098 4231 /* Handle relocatable links with a smaller loop. */
1049f94e 4232 if (info->relocatable)
4a67a098
RH		 4233 return elf64_alpha_relocate_section_r (output_bfd, info, input_bfd,
4234 input_section, contents, relocs,
4235 local_syms, local_sections);
4236
4237 /* This is a final link. */
4238
b34976b6 4239 ret_val = TRUE;
252b5132 4240
4a67a098 4241 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3765b1be 4242
4a67a098
RH		 4243 dynobj = elf_hash_table (info)->dynobj;
4244 if (dynobj)
4245 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4246 else
4247 srelgot = NULL;
4248
4249 section_name = (bfd_elf_string_from_elf_section
4250 (input_bfd, elf_elfheader(input_bfd)->e_shstrndx,
4251 elf_section_data(input_section)->rel_hdr.sh_name));
4252 BFD_ASSERT(section_name != NULL);
4253 srel = bfd_get_section_by_name (dynobj, section_name);
3765b1be 4254
4a67a098
RH		 4255 /* Find the gp value for this input bfd. */
4256 gotobj = alpha_elf_tdata (input_bfd)->gotobj;
4257 if (gotobj)
4258 {
4259 sgot = alpha_elf_tdata (gotobj)->got;
4260 gp = _bfd_get_gp_value (gotobj);
4261 if (gp == 0)
252b5132 4262 {
4a67a098
RH		 4263 gp = (sgot->output_section->vma
4264 + sgot->output_offset
4265 + 0x8000);
4266 _bfd_set_gp_value (gotobj, gp);
4267 }
4268 }
4269 else
4270 {
4271 sgot = NULL;
4272 gp = 0;
4273 }
3765b1be 4274
4a67a098
RH		 4275 local_got_entries = alpha_elf_tdata(input_bfd)->local_got_entries;
4276
e1918d23 4277 if (elf_hash_table (info)->tls_sec != NULL)
4a67a098 4278 {
e1918d23
AM		 4279 dtp_base = alpha_get_dtprel_base (info);
4280 tp_base = alpha_get_tprel_base (info);
252b5132 4281 }
4a67a098
RH		 4282 else
4283 dtp_base = tp_base = 0;
252b5132 4284
252b5132 4285 relend = relocs + input_section->reloc_count;
4a67a098 4286 for (rel = relocs; rel < relend; rel++)
252b5132 4287 {
4a67a098 4288 struct alpha_elf_link_hash_entry *h = NULL;
3765b1be
RH		 4289 struct alpha_elf_got_entry *gotent;
4290 bfd_reloc_status_type r;
252b5132
RH		 4291 reloc_howto_type *howto;
4292 unsigned long r_symndx;
4a67a098
RH		 4293 Elf_Internal_Sym *sym = NULL;
4294 asection *sec = NULL;
3765b1be 4295 bfd_vma value;
dc810e39 4296 bfd_vma addend;
b34976b6
AM		 4297 bfd_boolean dynamic_symbol_p;
4298 bfd_boolean undef_weak_ref = FALSE;
3765b1be 4299 unsigned long r_type;
252b5132
RH		 4300
4301 r_type = ELF64_R_TYPE(rel->r_info);
3765b1be 4302 if (r_type >= R_ALPHA_max)
252b5132 4303 {
3765b1be 4304 (*_bfd_error_handler)
d003868e
AM		 4305 (_("%B: unknown relocation type %d"),
4306 input_bfd, (int) r_type);
252b5132 4307 bfd_set_error (bfd_error_bad_value);
b34976b6 4308 ret_val = FALSE;
3765b1be 4309 continue;
252b5132 4310 }
252b5132 4311
3765b1be 4312 howto = elf64_alpha_howto_table + r_type;
252b5132
RH		 4313 r_symndx = ELF64_R_SYM(rel->r_info);
4314
cc03ec80
RH		 4315 /* The symbol for a TLSLDM reloc is ignored. Collapse the
4316 reloc to the 0 symbol so that they all match. */
4317 if (r_type == R_ALPHA_TLSLDM)
4318 r_symndx = 0;
4319
252b5132
RH		 4320 if (r_symndx < symtab_hdr->sh_info)
4321 {
8517fae7 4322 asection *msec;
252b5132
RH		 4323 sym = local_syms + r_symndx;
4324 sec = local_sections[r_symndx];
8517fae7
AM		 4325 msec = sec;
4326 value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
3765b1be 4327
cc03ec80
RH		 4328 /* If this is a tp-relative relocation against sym 0,
4329 this is hackery from relax_section. Force the value to
4330 be the tls base. */
4331 if (r_symndx == 0
4332 && (r_type == R_ALPHA_TLSLDM
4333 || r_type == R_ALPHA_GOTTPREL
4334 || r_type == R_ALPHA_TPREL64
4335 || r_type == R_ALPHA_TPRELHI
4336 || r_type == R_ALPHA_TPRELLO
4337 || r_type == R_ALPHA_TPREL16))
4338 value = tp_base;
4339
4a67a098
RH		 4340 if (local_got_entries)
4341 gotent = local_got_entries[r_symndx];
4342 else
4343 gotent = NULL;
3765b1be
RH		 4344
4345 /* Need to adjust local GOT entries' addends for SEC_MERGE
4346 unless it has been done already. */
4347 if ((sec->flags & SEC_MERGE)
048d873d 4348 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
68bfbfcc 4349 && sec->sec_info_type == ELF_INFO_TYPE_MERGE
048d873d
RH		 4350 && gotent
4351 && !gotent->reloc_xlated)
3765b1be
RH		 4352 {
4353 struct alpha_elf_got_entry *ent;
3765b1be
RH		 4354
4355 for (ent = gotent; ent; ent = ent->next)
4356 {
4357 ent->reloc_xlated = 1;
4358 if (ent->use_count == 0)
4359 continue;
4360 msec = sec;
4361 ent->addend =
4362 _bfd_merged_section_offset (output_bfd, &msec,
4363 elf_section_data (sec)->
4364 sec_info,
753731ee 4365 sym->st_value + ent->addend);
3765b1be
RH		 4366 ent->addend -= sym->st_value;
4367 ent->addend += msec->output_section->vma
4368 + msec->output_offset
4369 - sec->output_section->vma
4370 - sec->output_offset;
4371 }
4372 }
4373
b34976b6 4374 dynamic_symbol_p = FALSE;
252b5132
RH		 4375 }
4376 else
4377 {
560e09e9
NC		 4378 bfd_boolean warned;
4379 bfd_boolean unresolved_reloc;
4380 struct elf_link_hash_entry *hh;
b2a8e766
AM		 4381 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
4382
4383 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4384 r_symndx, symtab_hdr, sym_hashes,
4385 hh, sec, value,
4386 unresolved_reloc, warned);
560e09e9
NC		 4387
4388 if (warned)
4389 continue;
252b5132 4390
560e09e9
NC		 4391 if (value == 0
4392 && ! unresolved_reloc
4393 && hh->root.type == bfd_link_hash_undefweak)
b34976b6 4394 undef_weak_ref = TRUE;
3765b1be 4395
560e09e9 4396 h = (struct alpha_elf_link_hash_entry *) hh;
3765b1be
RH		 4397 dynamic_symbol_p = alpha_elf_dynamic_symbol_p (&h->root, info);
4398 gotent = h->got_entries;
252b5132 4399 }
3765b1be 4400
252b5132 4401 addend = rel->r_addend;
3765b1be
RH		 4402 value += addend;
4403
4404 /* Search for the proper got entry. */
4405 for (; gotent ; gotent = gotent->next)
4406 if (gotent->gotobj == gotobj
4407 && gotent->reloc_type == r_type
4408 && gotent->addend == addend)
4409 break;
252b5132
RH		 4410
4411 switch (r_type)
4412 {
4413 case R_ALPHA_GPDISP:
4414 {
4415 bfd_byte *p_ldah, *p_lda;
4416
4417 BFD_ASSERT(gp != 0);
4418
3765b1be
RH		 4419 value = (input_section->output_section->vma
4420 + input_section->output_offset
4421 + rel->r_offset);
252b5132 4422
3765b1be 4423 p_ldah = contents + rel->r_offset;
252b5132
RH		 4424 p_lda = p_ldah + rel->r_addend;
4425
3765b1be 4426 r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - value,
252b5132
RH		 4427 p_ldah, p_lda);
4428 }
4429 break;
4430
252b5132 4431 case R_ALPHA_LITERAL:
3765b1be
RH		 4432 BFD_ASSERT(sgot != NULL);
4433 BFD_ASSERT(gp != 0);
4434 BFD_ASSERT(gotent != NULL);
4435 BFD_ASSERT(gotent->use_count >= 1);
f7460f5f 4436
3765b1be
RH		 4437 if (!gotent->reloc_done)
4438 {
4439 gotent->reloc_done = 1;
252b5132 4440
3765b1be
RH		 4441 bfd_put_64 (output_bfd, value,
4442 sgot->contents + gotent->got_offset);
252b5132 4443
3765b1be
RH		 4444 /* If the symbol has been forced local, output a
4445 RELATIVE reloc, otherwise it will be handled in
4446 finish_dynamic_symbol. */
4447 if (info->shared && !dynamic_symbol_p)
1bbc9cec
RH		 4448 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4449 gotent->got_offset, 0,
4450 R_ALPHA_RELATIVE, value);
3765b1be 4451 }
252b5132 4452
3765b1be
RH		 4453 value = (sgot->output_section->vma
4454 + sgot->output_offset
4455 + gotent->got_offset);
4456 value -= gp;
252b5132
RH		 4457 goto default_reloc;
4458
4459 case R_ALPHA_GPREL32:
ec1659c8
RH		 4460 /* If the target section was a removed linkonce section,
4461 r_symndx will be zero. In this case, assume that the
4462 switch will not be used, so don't fill it in. If we
4463 do nothing here, we'll get relocation truncated messages,
4464 due to the placement of the application above 4GB. */
4465 if (r_symndx == 0)
4466 {
4467 r = bfd_reloc_ok;
4468 break;
4469 }
4470 /* FALLTHRU */
4471
4472 case R_ALPHA_GPREL16:
252b5132 4473 case R_ALPHA_GPRELLOW:
3765b1be 4474 if (dynamic_symbol_p)
f16fbd61
RH		 4475 {
4476 (*_bfd_error_handler)
d003868e
AM		 4477 (_("%B: gp-relative relocation against dynamic symbol %s"),
4478 input_bfd, h->root.root.root.string);
b34976b6 4479 ret_val = FALSE;
f16fbd61 4480 }
252b5132 4481 BFD_ASSERT(gp != 0);
3765b1be 4482 value -= gp;
252b5132
RH		 4483 goto default_reloc;
4484
4485 case R_ALPHA_GPRELHIGH:
3765b1be 4486 if (dynamic_symbol_p)
f16fbd61
RH		 4487 {
4488 (*_bfd_error_handler)
d003868e
AM		 4489 (_("%B: gp-relative relocation against dynamic symbol %s"),
4490 input_bfd, h->root.root.root.string);
b34976b6 4491 ret_val = FALSE;
f16fbd61 4492 }
252b5132 4493 BFD_ASSERT(gp != 0);
3765b1be
RH		 4494 value -= gp;
4495 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
252b5132
RH		 4496 goto default_reloc;
4497
252b5132 4498 case R_ALPHA_HINT:
f94952df
RH		 4499 /* A call to a dynamic symbol is definitely out of range of
4500 the 16-bit displacement. Don't bother writing anything. */
3765b1be 4501 if (dynamic_symbol_p)
f94952df
RH		 4502 {
4503 r = bfd_reloc_ok;
4504 break;
4505 }
3765b1be
RH		 4506 /* The regular PC-relative stuff measures from the start of
4507 the instruction rather than the end. */
4508 value -= 4;
4509 goto default_reloc;
f94952df
RH		 4510
4511 case R_ALPHA_BRADDR:
3765b1be
RH		 4512 if (dynamic_symbol_p)
4513 {
4514 (*_bfd_error_handler)
d003868e
AM		 4515 (_("%B: pc-relative relocation against dynamic symbol %s"),
4516 input_bfd, h->root.root.root.string);
b34976b6 4517 ret_val = FALSE;
3765b1be 4518 }
252b5132
RH		 4519 /* The regular PC-relative stuff measures from the start of
4520 the instruction rather than the end. */
3765b1be 4521 value -= 4;
252b5132
RH		 4522 goto default_reloc;
4523
7793f4d0
RH		 4524 case R_ALPHA_BRSGP:
4525 {
4526 int other;
4527 const char *name;
4528
4529 /* The regular PC-relative stuff measures from the start of
4530 the instruction rather than the end. */
3765b1be 4531 value -= 4;
7793f4d0 4532
ccf00ab6
RH		 4533 /* The source and destination gp must be the same. Note that
4534 the source will always have an assigned gp, since we forced
4535 one in check_relocs, but that the destination may not, as
cedb70c5 4536 it might not have had any relocations at all. Also take
ccf00ab6
RH		 4537 care not to crash if H is an undefined symbol. */
4538 if (h != NULL && sec != NULL
4539 && alpha_elf_tdata (sec->owner)->gotobj
7793f4d0
RH		 4540 && gotobj != alpha_elf_tdata (sec->owner)->gotobj)
4541 {
7793f4d0 4542 (*_bfd_error_handler)
d003868e
AM		 4543 (_("%B: change in gp: BRSGP %s"),
4544 input_bfd, h->root.root.root.string);
b34976b6 4545 ret_val = FALSE;
7793f4d0
RH		 4546 }
4547
4548 /* The symbol should be marked either NOPV or STD_GPLOAD. */
4549 if (h != NULL)
4550 other = h->root.other;
4551 else
4552 other = sym->st_other;
4553 switch (other & STO_ALPHA_STD_GPLOAD)
4554 {
4555 case STO_ALPHA_NOPV:
4556 break;
4557 case STO_ALPHA_STD_GPLOAD:
64e04ecd 4558 value += 8;
7793f4d0
RH		 4559 break;
4560 default:
4561 if (h != NULL)
4562 name = h->root.root.root.string;
4563 else
4564 {
4565 name = (bfd_elf_string_from_elf_section
4566 (input_bfd, symtab_hdr->sh_link, sym->st_name));
4567 if (name == NULL)
4568 name = _("<unknown>");
4569 else if (name[0] == 0)
4570 name = bfd_section_name (input_bfd, sec);
4571 }
4572 (*_bfd_error_handler)
d003868e
AM		 4573 (_("%B: !samegp reloc against symbol without .prologue: %s"),
4574 input_bfd, name);
b34976b6 4575 ret_val = FALSE;
7793f4d0
RH		 4576 break;
4577 }
4578
4579 goto default_reloc;
4580 }
4581
252b5132
RH		 4582 case R_ALPHA_REFLONG:
4583 case R_ALPHA_REFQUAD:
3765b1be
RH		 4584 case R_ALPHA_DTPREL64:
4585 case R_ALPHA_TPREL64:
252b5132 4586 {
1bbc9cec
RH		 4587 long dynindx, dyntype = r_type;
4588 bfd_vma dynaddend;
252b5132
RH		 4589
4590 /* Careful here to remember RELATIVE relocations for global
4591 variables for symbolic shared objects. */
4592
3765b1be 4593 if (dynamic_symbol_p)
252b5132
RH		 4594 {
4595 BFD_ASSERT(h->root.dynindx != -1);
1bbc9cec
RH		 4596 dynindx = h->root.dynindx;
4597 dynaddend = addend;
3765b1be
RH		 4598 addend = 0, value = 0;
4599 }
4600 else if (r_type == R_ALPHA_DTPREL64)
4601 {
e1918d23 4602 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be
RH		 4603 value -= dtp_base;
4604 goto default_reloc;
4605 }
4606 else if (r_type == R_ALPHA_TPREL64)
4607 {
e1918d23 4608 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
1bbc9cec
RH		 4609 if (!info->shared)
4610 {
4611 value -= tp_base;
4612 goto default_reloc;
4613 }
4614 dynindx = 0;
4615 dynaddend = value - dtp_base;
252b5132 4616 }
ec338859
AM		 4617 else if (info->shared
4618 && r_symndx != 0
4619 && (input_section->flags & SEC_ALLOC))
252b5132 4620 {
3765b1be
RH		 4621 if (r_type == R_ALPHA_REFLONG)
4622 {
4623 (*_bfd_error_handler)
d003868e
AM		 4624 (_("%B: unhandled dynamic relocation against %s"),
4625 input_bfd,
3765b1be 4626 h->root.root.root.string);
b34976b6 4627 ret_val = FALSE;
3765b1be 4628 }
1bbc9cec
RH		 4629 dynindx = 0;
4630 dyntype = R_ALPHA_RELATIVE;
4631 dynaddend = value;
252b5132
RH		 4632 }
4633 else
4634 goto default_reloc;
4635
1bbc9cec
RH		 4636 elf64_alpha_emit_dynrel (output_bfd, info, input_section,
4637 srel, rel->r_offset, dynindx,
4638 dyntype, dynaddend);
252b5132
RH		 4639 }
4640 goto default_reloc;
4641
3765b1be 4642 case R_ALPHA_SREL16:
84de6048
RH		 4643 case R_ALPHA_SREL32:
4644 case R_ALPHA_SREL64:
3765b1be
RH		 4645 if (dynamic_symbol_p)
4646 {
4647 (*_bfd_error_handler)
d003868e
AM		 4648 (_("%B: pc-relative relocation against dynamic symbol %s"),
4649 input_bfd, h->root.root.root.string);
b34976b6 4650 ret_val = FALSE;
3765b1be
RH		 4651 }
4652
84de6048
RH		 4653 /* ??? .eh_frame references to discarded sections will be smashed
4654 to relocations against SHN_UNDEF. The .eh_frame format allows
4655 NULL to be encoded as 0 in any format, so this works here. */
4656 if (r_symndx == 0)
4657 howto = (elf64_alpha_howto_table
4658 + (r_type - R_ALPHA_SREL32 + R_ALPHA_REFLONG));
4659 goto default_reloc;
4660
3765b1be
RH		 4661 case R_ALPHA_TLSLDM:
4662 /* Ignore the symbol for the relocation. The result is always
4663 the current module. */
4664 dynamic_symbol_p = 0;
4665 /* FALLTHRU */
4666
4667 case R_ALPHA_TLSGD:
4668 if (!gotent->reloc_done)
4669 {
4670 gotent->reloc_done = 1;
4671
4672 /* Note that the module index for the main program is 1. */
4673 bfd_put_64 (output_bfd, !info->shared && !dynamic_symbol_p,
4674 sgot->contents + gotent->got_offset);
4675
4676 /* If the symbol has been forced local, output a
4677 DTPMOD64 reloc, otherwise it will be handled in
4678 finish_dynamic_symbol. */
4679 if (info->shared && !dynamic_symbol_p)
1bbc9cec
RH		 4680 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4681 gotent->got_offset, 0,
4682 R_ALPHA_DTPMOD64, 0);
3765b1be
RH		 4683
4684 if (dynamic_symbol_p || r_type == R_ALPHA_TLSLDM)
4685 value = 0;
4686 else
4687 {
e1918d23 4688 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be
RH		 4689 value -= dtp_base;
4690 }
4691 bfd_put_64 (output_bfd, value,
4692 sgot->contents + gotent->got_offset + 8);
4693 }
4694
4695 value = (sgot->output_section->vma
4696 + sgot->output_offset
4697 + gotent->got_offset);
4698 value -= gp;
4699 goto default_reloc;
4700
4701 case R_ALPHA_DTPRELHI:
4702 case R_ALPHA_DTPRELLO:
4703 case R_ALPHA_DTPREL16:
4704 if (dynamic_symbol_p)
4705 {
4706 (*_bfd_error_handler)
d003868e
AM		 4707 (_("%B: dtp-relative relocation against dynamic symbol %s"),
4708 input_bfd, h->root.root.root.string);
b34976b6 4709 ret_val = FALSE;
3765b1be 4710 }
e1918d23 4711 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be 4712 value -= dtp_base;
9e756d64
RH		 4713 if (r_type == R_ALPHA_DTPRELHI)
4714 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
3765b1be
RH		 4715 goto default_reloc;
4716
4717 case R_ALPHA_TPRELHI:
4718 case R_ALPHA_TPRELLO:
4719 case R_ALPHA_TPREL16:
9e756d64
RH		 4720 if (info->shared)
4721 {
4722 (*_bfd_error_handler)
d003868e
AM		 4723 (_("%B: TLS local exec code cannot be linked into shared objects"),
4724 input_bfd);
b34976b6 4725 ret_val = FALSE;
9e756d64
RH		 4726 }
4727 else if (dynamic_symbol_p)
3765b1be
RH		 4728 {
4729 (*_bfd_error_handler)
d003868e
AM		 4730 (_("%B: tp-relative relocation against dynamic symbol %s"),
4731 input_bfd, h->root.root.root.string);
b34976b6 4732 ret_val = FALSE;
3765b1be 4733 }
e1918d23 4734 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be 4735 value -= tp_base;
9e756d64
RH		 4736 if (r_type == R_ALPHA_TPRELHI)
4737 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
3765b1be
RH		 4738 goto default_reloc;
4739
4740 case R_ALPHA_GOTDTPREL:
4741 case R_ALPHA_GOTTPREL:
4742 BFD_ASSERT(sgot != NULL);
4743 BFD_ASSERT(gp != 0);
4744 BFD_ASSERT(gotent != NULL);
4745 BFD_ASSERT(gotent->use_count >= 1);
4746
4747 if (!gotent->reloc_done)
4748 {
4749 gotent->reloc_done = 1;
4750
4751 if (dynamic_symbol_p)
4752 value = 0;
4753 else
4754 {
e1918d23 4755 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
1bbc9cec
RH		 4756 if (r_type == R_ALPHA_GOTDTPREL)
4757 value -= dtp_base;
4758 else if (!info->shared)
4759 value -= tp_base;
4760 else
4761 {
4762 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4763 gotent->got_offset, 0,
4764 R_ALPHA_TPREL64,
4765 value - dtp_base);
4766 value = 0;
4767 }
3765b1be
RH		 4768 }
4769 bfd_put_64 (output_bfd, value,
4770 sgot->contents + gotent->got_offset);
4771 }
4772
4773 value = (sgot->output_section->vma
4774 + sgot->output_offset
4775 + gotent->got_offset);
4776 value -= gp;
4777 goto default_reloc;
4778
252b5132
RH		 4779 default:
4780 default_reloc:
4781 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3765b1be 4782 contents, rel->r_offset, value, 0);
252b5132
RH		 4783 break;
4784 }
4785
4786 switch (r)
4787 {
4788 case bfd_reloc_ok:
4789 break;
4790
4791 case bfd_reloc_overflow:
4792 {
4793 const char *name;
4794
ed4de5e2
JJ		 4795 /* Don't warn if the overflow is due to pc relative reloc
4796 against discarded section. Section optimization code should
4797 handle it. */
4798
4799 if (r_symndx < symtab_hdr->sh_info
4800 && sec != NULL && howto->pc_relative
4801 && elf_discarded_section (sec))
4802 break;
4803
252b5132
RH		 4804 if (h != NULL)
4805 name = h->root.root.root.string;
4806 else
4807 {
4808 name = (bfd_elf_string_from_elf_section
4809 (input_bfd, symtab_hdr->sh_link, sym->st_name));
4810 if (name == NULL)
b34976b6 4811 return FALSE;
252b5132
RH		 4812 if (*name == '\0')
4813 name = bfd_section_name (input_bfd, sec);
4814 }
4815 if (! ((*info->callbacks->reloc_overflow)
4816 (info, name, howto->name, (bfd_vma) 0,
4817 input_bfd, input_section, rel->r_offset)))
b34976b6 4818 ret_val = FALSE;
252b5132
RH		 4819 }
4820 break;
4821
4822 default:
4823 case bfd_reloc_outofrange:
4824 abort ();
4825 }
4826 }
4827
f16fbd61 4828 return ret_val;
252b5132
RH		 4829}
4830
4831/* Finish up dynamic symbol handling. We set the contents of various
4832 dynamic sections here. */
4833
b34976b6 4834static bfd_boolean
252b5132
RH		 4835elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym)
4836 bfd *output_bfd;
4837 struct bfd_link_info *info;
4838 struct elf_link_hash_entry *h;
4839 Elf_Internal_Sym *sym;
4840{
4841 bfd *dynobj = elf_hash_table(info)->dynobj;
4842
4843 if (h->plt.offset != MINUS_ONE)
4844 {
4845 /* Fill in the .plt entry for this symbol. */
4846 asection *splt, *sgot, *srel;
4847 Elf_Internal_Rela outrel;
947216bf 4848 bfd_byte *loc;
252b5132
RH		 4849 bfd_vma got_addr, plt_addr;
4850 bfd_vma plt_index;
4851 struct alpha_elf_got_entry *gotent;
4852
4853 BFD_ASSERT (h->dynindx != -1);
4854
4855 /* The first .got entry will be updated by the .plt with the
4856 address of the target function. */
4857 gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
4858 BFD_ASSERT (gotent && gotent->addend == 0);
4859
4860 splt = bfd_get_section_by_name (dynobj, ".plt");
4861 BFD_ASSERT (splt != NULL);
4862 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
4863 BFD_ASSERT (srel != NULL);
4864 sgot = alpha_elf_tdata (gotent->gotobj)->got;
4865 BFD_ASSERT (sgot != NULL);
4866
4867 got_addr = (sgot->output_section->vma
4868 + sgot->output_offset
4869 + gotent->got_offset);
4870 plt_addr = (splt->output_section->vma
4871 + splt->output_offset
4872 + h->plt.offset);
4873
4874 plt_index = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
4875
4876 /* Fill in the entry in the procedure linkage table. */
4877 {
dc810e39 4878 bfd_vma insn1, insn2, insn3;
252b5132
RH		 4879
4880 insn1 = PLT_ENTRY_WORD1 | ((-(h->plt.offset + 4) >> 2) & 0x1fffff);
4881 insn2 = PLT_ENTRY_WORD2;
4882 insn3 = PLT_ENTRY_WORD3;
4883
4884 bfd_put_32 (output_bfd, insn1, splt->contents + h->plt.offset);
4885 bfd_put_32 (output_bfd, insn2, splt->contents + h->plt.offset + 4);
4886 bfd_put_32 (output_bfd, insn3, splt->contents + h->plt.offset + 8);
4887 }
4888
4889 /* Fill in the entry in the .rela.plt section. */
4890 outrel.r_offset = got_addr;
4891 outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT);
4892 outrel.r_addend = 0;
4893
947216bf
AM		 4894 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
4895 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 4896
f5385ebf 4897 if (!h->def_regular)
252b5132
RH		 4898 {
4899 /* Mark the symbol as undefined, rather than as defined in the
4900 .plt section. Leave the value alone. */
4901 sym->st_shndx = SHN_UNDEF;
4902 }
4903
4904 /* Fill in the entries in the .got. */
4905 bfd_put_64 (output_bfd, plt_addr, sgot->contents + gotent->got_offset);
4906
4907 /* Subsequent .got entries will continue to bounce through the .plt. */
4908 if (gotent->next)
4909 {
4910 srel = bfd_get_section_by_name (dynobj, ".rela.got");
4911 BFD_ASSERT (! info->shared || srel != NULL);
4912
4913 gotent = gotent->next;
4914 do
4915 {
4916 sgot = alpha_elf_tdata(gotent->gotobj)->got;
4917 BFD_ASSERT(sgot != NULL);
4918 BFD_ASSERT(gotent->addend == 0);
4919
4920 bfd_put_64 (output_bfd, plt_addr,
4921 sgot->contents + gotent->got_offset);
4922
4923 if (info->shared)
1bbc9cec
RH		 4924 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4925 gotent->got_offset, 0,
4926 R_ALPHA_RELATIVE, plt_addr);
252b5132
RH		 4927
4928 gotent = gotent->next;
4929 }
4930 while (gotent != NULL);
4931 }
4932 }
4933 else if (alpha_elf_dynamic_symbol_p (h, info))
4934 {
4935 /* Fill in the dynamic relocations for this symbol's .got entries. */
4936 asection *srel;
252b5132
RH		 4937 struct alpha_elf_got_entry *gotent;
4938
4939 srel = bfd_get_section_by_name (dynobj, ".rela.got");
4940 BFD_ASSERT (srel != NULL);
4941
252b5132
RH		 4942 for (gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
4943 gotent != NULL;
4944 gotent = gotent->next)
4945 {
f44f99a5 4946 asection *sgot;
1bbc9cec 4947 long r_type;
3765b1be 4948
f44f99a5
RH		 4949 if (gotent->use_count == 0)
4950 continue;
4951
4952 sgot = alpha_elf_tdata (gotent->gotobj)->got;
3765b1be
RH		 4953
4954 r_type = gotent->reloc_type;
4955 switch (r_type)
4956 {
4957 case R_ALPHA_LITERAL:
4958 r_type = R_ALPHA_GLOB_DAT;
4959 break;
4960 case R_ALPHA_TLSGD:
4961 r_type = R_ALPHA_DTPMOD64;
4962 break;
4963 case R_ALPHA_GOTDTPREL:
4964 r_type = R_ALPHA_DTPREL64;
4965 break;
4966 case R_ALPHA_GOTTPREL:
4967 r_type = R_ALPHA_TPREL64;
4968 break;
4969 case R_ALPHA_TLSLDM:
4970 default:
4971 abort ();
4972 }
4973
1bbc9cec
RH		 4974 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4975 gotent->got_offset, h->dynindx,
4976 r_type, gotent->addend);
3765b1be
RH		 4977
4978 if (gotent->reloc_type == R_ALPHA_TLSGD)
1bbc9cec
RH		 4979 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4980 gotent->got_offset + 8, h->dynindx,
4981 R_ALPHA_DTPREL64, gotent->addend);
252b5132
RH		 4982 }
4983 }
4984
4985 /* Mark some specially defined symbols as absolute. */
4986 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4987 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4988 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4989 sym->st_shndx = SHN_ABS;
4990
b34976b6 4991 return TRUE;
252b5132
RH		 4992}
4993
4994/* Finish up the dynamic sections. */
4995
b34976b6 4996static bfd_boolean
252b5132
RH		 4997elf64_alpha_finish_dynamic_sections (output_bfd, info)
4998 bfd *output_bfd;
4999 struct bfd_link_info *info;
5000{
5001 bfd *dynobj;
5002 asection *sdyn;
5003
5004 dynobj = elf_hash_table (info)->dynobj;
5005 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5006
5007 if (elf_hash_table (info)->dynamic_sections_created)
5008 {
5009 asection *splt;
5010 Elf64_External_Dyn *dyncon, *dynconend;
5011
5012 splt = bfd_get_section_by_name (dynobj, ".plt");
5013 BFD_ASSERT (splt != NULL && sdyn != NULL);
5014
5015 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 5016 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
252b5132
RH		 5017 for (; dyncon < dynconend; dyncon++)
5018 {
5019 Elf_Internal_Dyn dyn;
5020 const char *name;
5021 asection *s;
5022
5023 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
5024
5025 switch (dyn.d_tag)
5026 {
5027 case DT_PLTGOT:
5028 name = ".plt";
5029 goto get_vma;
5030 case DT_PLTRELSZ:
5031 name = ".rela.plt";
5032 goto get_size;
5033 case DT_JMPREL:
5034 name = ".rela.plt";
5035 goto get_vma;
5036
5037 case DT_RELASZ:
5038 /* My interpretation of the TIS v1.1 ELF document indicates
5039 that RELASZ should not include JMPREL. This is not what
5040 the rest of the BFD does. It is, however, what the
5041 glibc ld.so wants. Do this fixup here until we found
5042 out who is right. */
5043 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
5044 if (s)
eea6121a 5045 dyn.d_un.d_val -= s->size;
252b5132
RH		 5046 break;
5047
5048 get_vma:
5049 s = bfd_get_section_by_name (output_bfd, name);
5050 dyn.d_un.d_ptr = (s ? s->vma : 0);
5051 break;
5052
5053 get_size:
5054 s = bfd_get_section_by_name (output_bfd, name);
eea6121a 5055 dyn.d_un.d_val = s->size;
252b5132
RH		 5056 break;
5057 }
5058
5059 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5060 }
5061
ae9a127f 5062 /* Initialize the PLT0 entry. */
eea6121a 5063 if (splt->size > 0)
252b5132
RH		 5064 {
5065 bfd_put_32 (output_bfd, PLT_HEADER_WORD1, splt->contents);
5066 bfd_put_32 (output_bfd, PLT_HEADER_WORD2, splt->contents + 4);
5067 bfd_put_32 (output_bfd, PLT_HEADER_WORD3, splt->contents + 8);
5068 bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12);
5069
5070 /* The next two words will be filled in by ld.so */
dc810e39
AM		 5071 bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 16);
5072 bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 24);
252b5132 5073
eecdbe52 5074 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0;
252b5132
RH		 5075 }
5076 }
5077
b34976b6 5078 return TRUE;
252b5132
RH		 5079}
5080
96e2734b
RH		 5081/* We need to use a special link routine to handle the .mdebug section.
5082 We need to merge all instances of these sections together, not write
5083 them all out sequentially. */
252b5132 5084
b34976b6 5085static bfd_boolean
252b5132
RH		 5086elf64_alpha_final_link (abfd, info)
5087 bfd *abfd;
5088 struct bfd_link_info *info;
5089{
5090 asection *o;
5091 struct bfd_link_order *p;
96e2734b 5092 asection *mdebug_sec;
252b5132
RH		 5093 struct ecoff_debug_info debug;
5094 const struct ecoff_debug_swap *swap
5095 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
5096 HDRR *symhdr = &debug.symbolic_header;
5097 PTR mdebug_handle = NULL;
5098
96e2734b 5099 /* Go through the sections and collect the mdebug information. */
252b5132 5100 mdebug_sec = NULL;
252b5132
RH		 5101 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5102 {
252b5132
RH		 5103 if (strcmp (o->name, ".mdebug") == 0)
5104 {
5105 struct extsym_info einfo;
5106
5107 /* We have found the .mdebug section in the output file.
5108 Look through all the link_orders comprising it and merge
5109 the information together. */
5110 symhdr->magic = swap->sym_magic;
5111 /* FIXME: What should the version stamp be? */
5112 symhdr->vstamp = 0;
5113 symhdr->ilineMax = 0;
5114 symhdr->cbLine = 0;
5115 symhdr->idnMax = 0;
5116 symhdr->ipdMax = 0;
5117 symhdr->isymMax = 0;
5118 symhdr->ioptMax = 0;
5119 symhdr->iauxMax = 0;
5120 symhdr->issMax = 0;
5121 symhdr->issExtMax = 0;
5122 symhdr->ifdMax = 0;
5123 symhdr->crfd = 0;
5124 symhdr->iextMax = 0;
5125
5126 /* We accumulate the debugging information itself in the
5127 debug_info structure. */
5128 debug.line = NULL;
5129 debug.external_dnr = NULL;
5130 debug.external_pdr = NULL;
5131 debug.external_sym = NULL;
5132 debug.external_opt = NULL;
5133 debug.external_aux = NULL;
5134 debug.ss = NULL;
5135 debug.ssext = debug.ssext_end = NULL;
5136 debug.external_fdr = NULL;
5137 debug.external_rfd = NULL;
5138 debug.external_ext = debug.external_ext_end = NULL;
5139
5140 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
5141 if (mdebug_handle == (PTR) NULL)
b34976b6 5142 return FALSE;
252b5132
RH		 5143
5144 if (1)
5145 {
5146 asection *s;
5147 EXTR esym;
52b9d213 5148 bfd_vma last = 0;
252b5132
RH		 5149 unsigned int i;
5150 static const char * const name[] =
5151 {
5152 ".text", ".init", ".fini", ".data",
5153 ".rodata", ".sdata", ".sbss", ".bss"
5154 };
5155 static const int sc[] = { scText, scInit, scFini, scData,
5156 scRData, scSData, scSBss, scBss };
5157
5158 esym.jmptbl = 0;
5159 esym.cobol_main = 0;
5160 esym.weakext = 0;
5161 esym.reserved = 0;
5162 esym.ifd = ifdNil;
5163 esym.asym.iss = issNil;
5164 esym.asym.st = stLocal;
5165 esym.asym.reserved = 0;
5166 esym.asym.index = indexNil;
5167 for (i = 0; i < 8; i++)
5168 {
5169 esym.asym.sc = sc[i];
5170 s = bfd_get_section_by_name (abfd, name[i]);
5171 if (s != NULL)
5172 {
5173 esym.asym.value = s->vma;
eea6121a 5174 last = s->vma + s->size;
252b5132
RH		 5175 }
5176 else
5177 esym.asym.value = last;
5178
5179 if (! bfd_ecoff_debug_one_external (abfd, &debug, swap,
5180 name[i], &esym))
b34976b6 5181 return FALSE;
252b5132
RH		 5182 }
5183 }
5184
5185 for (p = o->link_order_head;
5186 p != (struct bfd_link_order *) NULL;
5187 p = p->next)
5188 {
5189 asection *input_section;
5190 bfd *input_bfd;
5191 const struct ecoff_debug_swap *input_swap;
5192 struct ecoff_debug_info input_debug;
5193 char *eraw_src;
5194 char *eraw_end;
5195
5196 if (p->type != bfd_indirect_link_order)
5197 {
fd96f80f 5198 if (p->type == bfd_data_link_order)
252b5132
RH		 5199 continue;
5200 abort ();
5201 }
5202
5203 input_section = p->u.indirect.section;
5204 input_bfd = input_section->owner;
5205
5206 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
5207 || (get_elf_backend_data (input_bfd)
5208 ->elf_backend_ecoff_debug_swap) == NULL)
5209 {
5210 /* I don't know what a non ALPHA ELF bfd would be
5211 doing with a .mdebug section, but I don't really
5212 want to deal with it. */
5213 continue;
5214 }
5215
5216 input_swap = (get_elf_backend_data (input_bfd)
5217 ->elf_backend_ecoff_debug_swap);
5218
eea6121a 5219 BFD_ASSERT (p->size == input_section->size);
252b5132
RH		 5220
5221 /* The ECOFF linking code expects that we have already
5222 read in the debugging information and set up an
5223 ecoff_debug_info structure, so we do that now. */
5224 if (!elf64_alpha_read_ecoff_info (input_bfd, input_section,
5225 &input_debug))
b34976b6 5226 return FALSE;
252b5132
RH		 5227
5228 if (! (bfd_ecoff_debug_accumulate
5229 (mdebug_handle, abfd, &debug, swap, input_bfd,
5230 &input_debug, input_swap, info)))
b34976b6 5231 return FALSE;
252b5132
RH		 5232
5233 /* Loop through the external symbols. For each one with
5234 interesting information, try to find the symbol in
5235 the linker global hash table and save the information
5236 for the output external symbols. */
5237 eraw_src = input_debug.external_ext;
5238 eraw_end = (eraw_src
5239 + (input_debug.symbolic_header.iextMax
5240 * input_swap->external_ext_size));
5241 for (;
5242 eraw_src < eraw_end;
5243 eraw_src += input_swap->external_ext_size)
5244 {
5245 EXTR ext;
5246 const char *name;
5247 struct alpha_elf_link_hash_entry *h;
5248
5249 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
5250 if (ext.asym.sc == scNil
5251 || ext.asym.sc == scUndefined
5252 || ext.asym.sc == scSUndefined)
5253 continue;
5254
5255 name = input_debug.ssext + ext.asym.iss;
5256 h = alpha_elf_link_hash_lookup (alpha_elf_hash_table (info),
b34976b6 5257 name, FALSE, FALSE, TRUE);
252b5132
RH		 5258 if (h == NULL || h->esym.ifd != -2)
5259 continue;
5260
5261 if (ext.ifd != -1)
5262 {
5263 BFD_ASSERT (ext.ifd
5264 < input_debug.symbolic_header.ifdMax);
5265 ext.ifd = input_debug.ifdmap[ext.ifd];
5266 }
5267
5268 h->esym = ext;
5269 }
5270
5271 /* Free up the information we just read. */
5272 free (input_debug.line);
5273 free (input_debug.external_dnr);
5274 free (input_debug.external_pdr);
5275 free (input_debug.external_sym);
5276 free (input_debug.external_opt);
5277 free (input_debug.external_aux);
5278 free (input_debug.ss);
5279 free (input_debug.ssext);
5280 free (input_debug.external_fdr);
5281 free (input_debug.external_rfd);
5282 free (input_debug.external_ext);
5283
5284 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5285 elf_link_input_bfd ignores this section. */
5286 input_section->flags &=~ SEC_HAS_CONTENTS;
5287 }
5288
252b5132
RH		 5289 /* Build the external symbol information. */
5290 einfo.abfd = abfd;
5291 einfo.info = info;
5292 einfo.debug = &debug;
5293 einfo.swap = swap;
b34976b6 5294 einfo.failed = FALSE;
252b5132
RH		 5295 elf_link_hash_traverse (elf_hash_table (info),
5296 elf64_alpha_output_extsym,
5297 (PTR) &einfo);
5298 if (einfo.failed)
b34976b6 5299 return FALSE;
252b5132
RH		 5300
5301 /* Set the size of the .mdebug section. */
eea6121a 5302 o->size = bfd_ecoff_debug_size (abfd, &debug, swap);
252b5132
RH		 5303
5304 /* Skip this section later on (I don't think this currently
5305 matters, but someday it might). */
5306 o->link_order_head = (struct bfd_link_order *) NULL;
5307
5308 mdebug_sec = o;
5309 }
252b5132
RH		 5310 }
5311
5312 /* Invoke the regular ELF backend linker to do all the work. */
c152c796 5313 if (! bfd_elf_final_link (abfd, info))
b34976b6 5314 return FALSE;
252b5132
RH		 5315
5316 /* Now write out the computed sections. */
5317
5318 /* The .got subsections... */
5319 {
5320 bfd *i, *dynobj = elf_hash_table(info)->dynobj;
5321 for (i = alpha_elf_hash_table(info)->got_list;
5322 i != NULL;
5323 i = alpha_elf_tdata(i)->got_link_next)
5324 {
5325 asection *sgot;
5326
5327 /* elf_bfd_final_link already did everything in dynobj. */
5328 if (i == dynobj)
5329 continue;
5330
5331 sgot = alpha_elf_tdata(i)->got;
5332 if (! bfd_set_section_contents (abfd, sgot->output_section,
dc810e39
AM		 5333 sgot->contents,
5334 (file_ptr) sgot->output_offset,
eea6121a 5335 sgot->size))
b34976b6 5336 return FALSE;
252b5132
RH		 5337 }
5338 }
5339
252b5132
RH		 5340 if (mdebug_sec != (asection *) NULL)
5341 {
5342 BFD_ASSERT (abfd->output_has_begun);
5343 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5344 swap, info,
5345 mdebug_sec->filepos))
b34976b6 5346 return FALSE;
252b5132
RH		 5347
5348 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5349 }
5350
b34976b6 5351 return TRUE;
252b5132 5352}
fcfbdf31
JJ		 5353
5354static enum elf_reloc_type_class
f51e552e
AM		 5355elf64_alpha_reloc_type_class (rela)
5356 const Elf_Internal_Rela *rela;
fcfbdf31 5357{
f51e552e 5358 switch ((int) ELF64_R_TYPE (rela->r_info))
fcfbdf31
JJ		 5359 {
5360 case R_ALPHA_RELATIVE:
5361 return reloc_class_relative;
5362 case R_ALPHA_JMP_SLOT:
5363 return reloc_class_plt;
5364 case R_ALPHA_COPY:
5365 return reloc_class_copy;
5366 default:
5367 return reloc_class_normal;
5368 }
5369}
252b5132 5370\f
2f89ff8d
L		 5371static struct bfd_elf_special_section const elf64_alpha_special_sections[]=
5372{
7dcb9820
AM		 5373 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
5374 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
5375 { NULL, 0, 0, 0, 0 }
2f89ff8d
L		 5376};
5377
252b5132
RH		 5378/* ECOFF swapping routines. These are used when dealing with the
5379 .mdebug section, which is in the ECOFF debugging format. Copied
fe8bc63d 5380 from elf32-mips.c. */
252b5132
RH		 5381static const struct ecoff_debug_swap
5382elf64_alpha_ecoff_debug_swap =
5383{
5384 /* Symbol table magic number. */
5385 magicSym2,
5386 /* Alignment of debugging information. E.g., 4. */
5387 8,
5388 /* Sizes of external symbolic information. */
5389 sizeof (struct hdr_ext),
5390 sizeof (struct dnr_ext),
5391 sizeof (struct pdr_ext),
5392 sizeof (struct sym_ext),
5393 sizeof (struct opt_ext),
5394 sizeof (struct fdr_ext),
5395 sizeof (struct rfd_ext),
5396 sizeof (struct ext_ext),
5397 /* Functions to swap in external symbolic data. */
5398 ecoff_swap_hdr_in,
5399 ecoff_swap_dnr_in,
5400 ecoff_swap_pdr_in,
5401 ecoff_swap_sym_in,
5402 ecoff_swap_opt_in,
5403 ecoff_swap_fdr_in,
5404 ecoff_swap_rfd_in,
5405 ecoff_swap_ext_in,
5406 _bfd_ecoff_swap_tir_in,
5407 _bfd_ecoff_swap_rndx_in,
5408 /* Functions to swap out external symbolic data. */
5409 ecoff_swap_hdr_out,
5410 ecoff_swap_dnr_out,
5411 ecoff_swap_pdr_out,
5412 ecoff_swap_sym_out,
5413 ecoff_swap_opt_out,
5414 ecoff_swap_fdr_out,
5415 ecoff_swap_rfd_out,
5416 ecoff_swap_ext_out,
5417 _bfd_ecoff_swap_tir_out,
5418 _bfd_ecoff_swap_rndx_out,
5419 /* Function to read in symbolic data. */
5420 elf64_alpha_read_ecoff_info
5421};
5422\f
70bcb145
JW		 5423/* Use a non-standard hash bucket size of 8. */
5424
562ace6b 5425static const struct elf_size_info alpha_elf_size_info =
70bcb145
JW		 5426{
5427 sizeof (Elf64_External_Ehdr),
5428 sizeof (Elf64_External_Phdr),
5429 sizeof (Elf64_External_Shdr),
5430 sizeof (Elf64_External_Rel),
5431 sizeof (Elf64_External_Rela),
5432 sizeof (Elf64_External_Sym),
5433 sizeof (Elf64_External_Dyn),
5434 sizeof (Elf_External_Note),
5435 8,
5436 1,
45d6a902 5437 64, 3,
70bcb145
JW		 5438 ELFCLASS64, EV_CURRENT,
5439 bfd_elf64_write_out_phdrs,
5440 bfd_elf64_write_shdrs_and_ehdr,
5441 bfd_elf64_write_relocs,
73ff0d56 5442 bfd_elf64_swap_symbol_in,
70bcb145
JW		 5443 bfd_elf64_swap_symbol_out,
5444 bfd_elf64_slurp_reloc_table,
5445 bfd_elf64_slurp_symbol_table,
5446 bfd_elf64_swap_dyn_in,
5447 bfd_elf64_swap_dyn_out,
947216bf
AM		 5448 bfd_elf64_swap_reloc_in,
5449 bfd_elf64_swap_reloc_out,
5450 bfd_elf64_swap_reloca_in,
5451 bfd_elf64_swap_reloca_out
70bcb145
JW		 5452};
5453
252b5132
RH		 5454#define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
5455#define TARGET_LITTLE_NAME "elf64-alpha"
5456#define ELF_ARCH bfd_arch_alpha
56fc028e
AJ		 5457#define ELF_MACHINE_CODE EM_ALPHA
5458#define ELF_MAXPAGESIZE 0x10000
252b5132
RH		 5459
5460#define bfd_elf64_bfd_link_hash_table_create \
5461 elf64_alpha_bfd_link_hash_table_create
5462
5463#define bfd_elf64_bfd_reloc_type_lookup \
5464 elf64_alpha_bfd_reloc_type_lookup
5465#define elf_info_to_howto \
5466 elf64_alpha_info_to_howto
5467
5468#define bfd_elf64_mkobject \
5469 elf64_alpha_mkobject
5470#define elf_backend_object_p \
5471 elf64_alpha_object_p
5472
5473#define elf_backend_section_from_shdr \
5474 elf64_alpha_section_from_shdr
204692d7
RH		 5475#define elf_backend_section_flags \
5476 elf64_alpha_section_flags
252b5132
RH		 5477#define elf_backend_fake_sections \
5478 elf64_alpha_fake_sections
5479
5480#define bfd_elf64_bfd_is_local_label_name \
5481 elf64_alpha_is_local_label_name
5482#define bfd_elf64_find_nearest_line \
5483 elf64_alpha_find_nearest_line
5484#define bfd_elf64_bfd_relax_section \
5485 elf64_alpha_relax_section
5486
5487#define elf_backend_add_symbol_hook \
5488 elf64_alpha_add_symbol_hook
5489#define elf_backend_check_relocs \
5490 elf64_alpha_check_relocs
5491#define elf_backend_create_dynamic_sections \
5492 elf64_alpha_create_dynamic_sections
5493#define elf_backend_adjust_dynamic_symbol \
5494 elf64_alpha_adjust_dynamic_symbol
5495#define elf_backend_always_size_sections \
5496 elf64_alpha_always_size_sections
5497#define elf_backend_size_dynamic_sections \
5498 elf64_alpha_size_dynamic_sections
5499#define elf_backend_relocate_section \
5500 elf64_alpha_relocate_section
5501#define elf_backend_finish_dynamic_symbol \
5502 elf64_alpha_finish_dynamic_symbol
5503#define elf_backend_finish_dynamic_sections \
5504 elf64_alpha_finish_dynamic_sections
5505#define bfd_elf64_bfd_final_link \
5506 elf64_alpha_final_link
fcfbdf31
JJ		 5507#define elf_backend_reloc_type_class \
5508 elf64_alpha_reloc_type_class
252b5132
RH		 5509
5510#define elf_backend_ecoff_debug_swap \
5511 &elf64_alpha_ecoff_debug_swap
5512
70bcb145
JW		 5513#define elf_backend_size_info \
5514 alpha_elf_size_info
5515
2f89ff8d
L		 5516#define elf_backend_special_sections \
5517 elf64_alpha_special_sections
5518
38b1a46c 5519/* A few constants that determine how the .plt section is set up. */
252b5132
RH		 5520#define elf_backend_want_got_plt 0
5521#define elf_backend_plt_readonly 0
5522#define elf_backend_want_plt_sym 1
5523#define elf_backend_got_header_size 0
252b5132
RH		 5524
5525#include "elf64-target.h"
2238051f
RH		 5526\f
5527/* FreeBSD support. */
5528
5529#undef TARGET_LITTLE_SYM
5530#define TARGET_LITTLE_SYM bfd_elf64_alpha_freebsd_vec
5531#undef TARGET_LITTLE_NAME
5532#define TARGET_LITTLE_NAME "elf64-alpha-freebsd"
5533
5534/* The kernel recognizes executables as valid only if they carry a
5535 "FreeBSD" label in the ELF header. So we put this label on all
5536 executables and (for simplicity) also all other object files. */
5537
5538static void elf64_alpha_fbsd_post_process_headers
5539 PARAMS ((bfd *, struct bfd_link_info *));
5540
5541static void
5542elf64_alpha_fbsd_post_process_headers (abfd, link_info)
5543 bfd * abfd;
5544 struct bfd_link_info * link_info ATTRIBUTE_UNUSED;
5545{
5546 Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */
5547
5548 i_ehdrp = elf_elfheader (abfd);
5549
5550 /* Put an ABI label supported by FreeBSD >= 4.1. */
5551 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
5552#ifdef OLD_FREEBSD_ABI_LABEL
5553 /* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
5554 memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
5555#endif
5556}
5557
5558#undef elf_backend_post_process_headers
5559#define elf_backend_post_process_headers \
5560 elf64_alpha_fbsd_post_process_headers
5561
571fe01f 5562#undef elf64_bed
2238051f
RH		 5563#define elf64_bed elf64_alpha_fbsd_bed
5564
5565#include "elf64-target.h"
GDB Binutils - Deliverables
This page took 1.715557 seconds and 4 git commands to generate.