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2005-02-06 H.J. Lu <hongjiu.lu@intel.com>
[deliverable/binutils-gdb.git] / bfd / elf64-alpha.c
CommitLineData
252b5132 1/* Alpha specific support for 64-bit ELF
77cfaee6 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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;
77cfaee6
AM		 2744 else if ((h->root.def_dynamic
2745 || h->root.ref_dynamic
2746 || h->root.root.type == bfd_link_hash_new)
f5385ebf
AM		 2747 && !h->root.def_regular
2748 && !h->root.ref_regular)
b34976b6 2749 strip = TRUE;
252b5132 2750 else if (einfo->info->strip == strip_all
e92d460e
AM		 2751 || (einfo->info->strip == strip_some
2752 && bfd_hash_lookup (einfo->info->keep_hash,
2753 h->root.root.root.string,
b34976b6
AM		 2754 FALSE, FALSE) == NULL))
2755 strip = TRUE;
252b5132 2756 else
b34976b6 2757 strip = FALSE;
252b5132
RH		 2758
2759 if (strip)
b34976b6 2760 return TRUE;
252b5132
RH		 2761
2762 if (h->esym.ifd == -2)
2763 {
2764 h->esym.jmptbl = 0;
2765 h->esym.cobol_main = 0;
2766 h->esym.weakext = 0;
2767 h->esym.reserved = 0;
2768 h->esym.ifd = ifdNil;
2769 h->esym.asym.value = 0;
2770 h->esym.asym.st = stGlobal;
2771
2772 if (h->root.root.type != bfd_link_hash_defined
e92d460e
AM		 2773 && h->root.root.type != bfd_link_hash_defweak)
2774 h->esym.asym.sc = scAbs;
252b5132 2775 else
e92d460e
AM		 2776 {
2777 const char *name;
2778
2779 sec = h->root.root.u.def.section;
2780 output_section = sec->output_section;
2781
2782 /* When making a shared library and symbol h is the one from
2783 the another shared library, OUTPUT_SECTION may be null. */
2784 if (output_section == NULL)
2785 h->esym.asym.sc = scUndefined;
2786 else
2787 {
2788 name = bfd_section_name (output_section->owner, output_section);
2789
2790 if (strcmp (name, ".text") == 0)
2791 h->esym.asym.sc = scText;
2792 else if (strcmp (name, ".data") == 0)
2793 h->esym.asym.sc = scData;
2794 else if (strcmp (name, ".sdata") == 0)
2795 h->esym.asym.sc = scSData;
2796 else if (strcmp (name, ".rodata") == 0
2797 || strcmp (name, ".rdata") == 0)
2798 h->esym.asym.sc = scRData;
2799 else if (strcmp (name, ".bss") == 0)
2800 h->esym.asym.sc = scBss;
2801 else if (strcmp (name, ".sbss") == 0)
2802 h->esym.asym.sc = scSBss;
2803 else if (strcmp (name, ".init") == 0)
2804 h->esym.asym.sc = scInit;
2805 else if (strcmp (name, ".fini") == 0)
2806 h->esym.asym.sc = scFini;
2807 else
2808 h->esym.asym.sc = scAbs;
2809 }
2810 }
252b5132
RH		 2811
2812 h->esym.asym.reserved = 0;
2813 h->esym.asym.index = indexNil;
2814 }
2815
2816 if (h->root.root.type == bfd_link_hash_common)
2817 h->esym.asym.value = h->root.root.u.c.size;
2818 else if (h->root.root.type == bfd_link_hash_defined
2819 || h->root.root.type == bfd_link_hash_defweak)
2820 {
2821 if (h->esym.asym.sc == scCommon)
e92d460e 2822 h->esym.asym.sc = scBss;
252b5132 2823 else if (h->esym.asym.sc == scSCommon)
e92d460e 2824 h->esym.asym.sc = scSBss;
252b5132
RH		 2825
2826 sec = h->root.root.u.def.section;
2827 output_section = sec->output_section;
2828 if (output_section != NULL)
e92d460e
AM		 2829 h->esym.asym.value = (h->root.root.u.def.value
2830 + sec->output_offset
2831 + output_section->vma);
252b5132 2832 else
e92d460e 2833 h->esym.asym.value = 0;
252b5132 2834 }
f5385ebf 2835 else if (h->root.needs_plt)
252b5132
RH		 2836 {
2837 /* Set type and value for a symbol with a function stub. */
2838 h->esym.asym.st = stProc;
2839 sec = bfd_get_section_by_name (einfo->abfd, ".plt");
2840 if (sec == NULL)
2841 h->esym.asym.value = 0;
2842 else
2843 {
2844 output_section = sec->output_section;
2845 if (output_section != NULL)
2846 h->esym.asym.value = (h->root.plt.offset
2847 + sec->output_offset
2848 + output_section->vma);
2849 else
2850 h->esym.asym.value = 0;
2851 }
252b5132
RH		 2852 }
2853
2854 if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
e92d460e
AM		 2855 h->root.root.root.string,
2856 &h->esym))
252b5132 2857 {
b34976b6
AM		 2858 einfo->failed = TRUE;
2859 return FALSE;
252b5132
RH		 2860 }
2861
b34976b6 2862 return TRUE;
252b5132 2863}
252b5132 2864\f
3765b1be
RH		 2865/* Search for and possibly create a got entry. */
2866
2867static struct alpha_elf_got_entry *
2868get_got_entry (abfd, h, r_type, r_symndx, r_addend)
2869 bfd *abfd;
2870 struct alpha_elf_link_hash_entry *h;
2871 unsigned long r_type, r_symndx;
2872 bfd_vma r_addend;
2873{
2874 struct alpha_elf_got_entry *gotent;
2875 struct alpha_elf_got_entry **slot;
2876
2877 if (h)
2878 slot = &h->got_entries;
2879 else
2880 {
2881 /* This is a local .got entry -- record for merge. */
2882
2883 struct alpha_elf_got_entry **local_got_entries;
2884
2885 local_got_entries = alpha_elf_tdata(abfd)->local_got_entries;
2886 if (!local_got_entries)
2887 {
2888 bfd_size_type size;
2889 Elf_Internal_Shdr *symtab_hdr;
2890
2891 symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
2892 size = symtab_hdr->sh_info;
2893 size *= sizeof (struct alpha_elf_got_entry *);
2894
2895 local_got_entries
9bab7074 2896 = (struct alpha_elf_got_entry **) bfd_zalloc (abfd, size);
3765b1be
RH		 2897 if (!local_got_entries)
2898 return NULL;
2899
3765b1be
RH		 2900 alpha_elf_tdata (abfd)->local_got_entries = local_got_entries;
2901 }
2902
2903 slot = &local_got_entries[r_symndx];
2904 }
2905
2906 for (gotent = *slot; gotent ; gotent = gotent->next)
2907 if (gotent->gotobj == abfd
2908 && gotent->reloc_type == r_type
2909 && gotent->addend == r_addend)
2910 break;
2911
2912 if (!gotent)
2913 {
2914 int entry_size;
2915 bfd_size_type amt;
2916
2917 amt = sizeof (struct alpha_elf_got_entry);
2918 gotent = (struct alpha_elf_got_entry *) bfd_alloc (abfd, amt);
2919 if (!gotent)
2920 return NULL;
2921
2922 gotent->gotobj = abfd;
2923 gotent->addend = r_addend;
2924 gotent->got_offset = -1;
2925 gotent->use_count = 1;
2926 gotent->reloc_type = r_type;
2927 gotent->reloc_done = 0;
2928 gotent->reloc_xlated = 0;
2929
2930 gotent->next = *slot;
2931 *slot = gotent;
2932
2933 entry_size = alpha_got_entry_size (r_type);
2934 alpha_elf_tdata (abfd)->total_got_size += entry_size;
2935 if (!h)
2936 alpha_elf_tdata(abfd)->local_got_size += entry_size;
2937 }
2938 else
2939 gotent->use_count += 1;
2940
2941 return gotent;
2942}
2943
252b5132
RH		 2944/* Handle dynamic relocations when doing an Alpha ELF link. */
2945
b34976b6 2946static bfd_boolean
252b5132
RH		 2947elf64_alpha_check_relocs (abfd, info, sec, relocs)
2948 bfd *abfd;
2949 struct bfd_link_info *info;
2950 asection *sec;
2951 const Elf_Internal_Rela *relocs;
2952{
2953 bfd *dynobj;
2954 asection *sreloc;
2955 const char *rel_sec_name;
2956 Elf_Internal_Shdr *symtab_hdr;
2957 struct alpha_elf_link_hash_entry **sym_hashes;
252b5132 2958 const Elf_Internal_Rela *rel, *relend;
b34976b6 2959 bfd_boolean got_created;
dc810e39 2960 bfd_size_type amt;
252b5132 2961
1049f94e 2962 if (info->relocatable)
b34976b6 2963 return TRUE;
252b5132
RH		 2964
2965 dynobj = elf_hash_table(info)->dynobj;
2966 if (dynobj == NULL)
2967 elf_hash_table(info)->dynobj = dynobj = abfd;
2968
2969 sreloc = NULL;
2970 rel_sec_name = NULL;
2971 symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
2972 sym_hashes = alpha_elf_sym_hashes(abfd);
b34976b6 2973 got_created = FALSE;
252b5132
RH		 2974
2975 relend = relocs + sec->reloc_count;
2976 for (rel = relocs; rel < relend; ++rel)
2977 {
3765b1be
RH		 2978 enum {
2979 NEED_GOT = 1,
2980 NEED_GOT_ENTRY = 2,
2981 NEED_DYNREL = 4
2982 };
2983
252b5132
RH		 2984 unsigned long r_symndx, r_type;
2985 struct alpha_elf_link_hash_entry *h;
3765b1be 2986 unsigned int gotent_flags;
b34976b6 2987 bfd_boolean maybe_dynamic;
3765b1be
RH		 2988 unsigned int need;
2989 bfd_vma addend;
252b5132
RH		 2990
2991 r_symndx = ELF64_R_SYM (rel->r_info);
2992 if (r_symndx < symtab_hdr->sh_info)
2993 h = NULL;
2994 else
2995 {
2996 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2997
2998 while (h->root.root.type == bfd_link_hash_indirect
2999 || h->root.root.type == bfd_link_hash_warning)
3000 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
3001
f5385ebf 3002 h->root.ref_regular = 1;
252b5132 3003 }
3765b1be
RH		 3004
3005 /* We can only get preliminary data on whether a symbol is
3006 locally or externally defined, as not all of the input files
3007 have yet been processed. Do something with what we know, as
3008 this may help reduce memory usage and processing time later. */
b34976b6 3009 maybe_dynamic = FALSE;
3765b1be 3010 if (h && ((info->shared
560e09e9 3011 && (!info->symbolic || info->unresolved_syms_in_shared_libs == RM_IGNORE))
f5385ebf 3012 || !h->root.def_regular
c853d7f6 3013 || h->root.root.type == bfd_link_hash_defweak))
b34976b6 3014 maybe_dynamic = TRUE;
3765b1be
RH		 3015
3016 need = 0;
3017 gotent_flags = 0;
252b5132 3018 r_type = ELF64_R_TYPE (rel->r_info);
3765b1be 3019 addend = rel->r_addend;
252b5132
RH		 3020
3021 switch (r_type)
3022 {
3023 case R_ALPHA_LITERAL:
3765b1be
RH		 3024 need = NEED_GOT | NEED_GOT_ENTRY;
3025
3026 /* Remember how this literal is used from its LITUSEs.
3027 This will be important when it comes to decide if we can
3028 create a .plt entry for a function symbol. */
3029 while (++rel < relend && ELF64_R_TYPE (rel->r_info) == R_ALPHA_LITUSE)
3030 if (rel->r_addend >= 1 && rel->r_addend <= 5)
3031 gotent_flags |= 1 << rel->r_addend;
3032 --rel;
3033
3034 /* No LITUSEs -- presumably the address is used somehow. */
3035 if (gotent_flags == 0)
3036 gotent_flags = ALPHA_ELF_LINK_HASH_LU_ADDR;
3037 break;
252b5132
RH		 3038
3039 case R_ALPHA_GPDISP:
dfe57ca0 3040 case R_ALPHA_GPREL16:
252b5132
RH		 3041 case R_ALPHA_GPREL32:
3042 case R_ALPHA_GPRELHIGH:
3043 case R_ALPHA_GPRELLOW:
7793f4d0 3044 case R_ALPHA_BRSGP:
3765b1be
RH		 3045 need = NEED_GOT;
3046 break;
3047
3048 case R_ALPHA_REFLONG:
3049 case R_ALPHA_REFQUAD:
475c2a7e 3050 if ((info->shared && (sec->flags & SEC_ALLOC)) || maybe_dynamic)
3765b1be
RH		 3051 need = NEED_DYNREL;
3052 break;
3053
3765b1be 3054 case R_ALPHA_TLSLDM:
cc03ec80
RH		 3055 /* The symbol for a TLSLDM reloc is ignored. Collapse the
3056 reloc to the 0 symbol so that they all match. */
3057 r_symndx = 0;
3058 h = 0;
3059 maybe_dynamic = FALSE;
3060 /* FALLTHRU */
3061
3062 case R_ALPHA_TLSGD:
3765b1be
RH		 3063 case R_ALPHA_GOTDTPREL:
3064 need = NEED_GOT | NEED_GOT_ENTRY;
3065 break;
3066
3067 case R_ALPHA_GOTTPREL:
3068 need = NEED_GOT | NEED_GOT_ENTRY;
9e756d64 3069 gotent_flags = ALPHA_ELF_LINK_HASH_TLS_IE;
3765b1be
RH		 3070 if (info->shared)
3071 info->flags |= DF_STATIC_TLS;
3072 break;
3073
3074 case R_ALPHA_TPREL64:
3075 if (info->shared || maybe_dynamic)
3076 need = NEED_DYNREL;
3077 if (info->shared)
3078 info->flags |= DF_STATIC_TLS;
3079 break;
3080 }
3081
3082 if (need & NEED_GOT)
3083 {
252b5132
RH		 3084 if (!got_created)
3085 {
3086 if (!elf64_alpha_create_got_section (abfd, info))
b34976b6 3087 return FALSE;
252b5132
RH		 3088
3089 /* Make sure the object's gotobj is set to itself so
3090 that we default to every object with its own .got.
3091 We'll merge .gots later once we've collected each
3092 object's info. */
3093 alpha_elf_tdata(abfd)->gotobj = abfd;
3094
3095 got_created = 1;
3096 }
3765b1be 3097 }
252b5132 3098
3765b1be
RH		 3099 if (need & NEED_GOT_ENTRY)
3100 {
3101 struct alpha_elf_got_entry *gotent;
252b5132 3102
3765b1be
RH		 3103 gotent = get_got_entry (abfd, h, r_type, r_symndx, addend);
3104 if (!gotent)
b34976b6 3105 return FALSE;
3765b1be
RH		 3106
3107 if (gotent_flags)
3108 {
3109 gotent->flags |= gotent_flags;
3110 if (h)
3111 {
3112 gotent_flags |= h->flags;
3113 h->flags = gotent_flags;
3114
3115 /* Make a guess as to whether a .plt entry is needed. */
3116 if ((gotent_flags & ALPHA_ELF_LINK_HASH_LU_FUNC)
3117 && !(gotent_flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC))
f5385ebf 3118 h->root.needs_plt = 1;
3765b1be 3119 else
f5385ebf 3120 h->root.needs_plt = 0;
3765b1be
RH		 3121 }
3122 }
3123 }
3124
3125 if (need & NEED_DYNREL)
3126 {
252b5132
RH		 3127 if (rel_sec_name == NULL)
3128 {
3129 rel_sec_name = (bfd_elf_string_from_elf_section
3130 (abfd, elf_elfheader(abfd)->e_shstrndx,
3131 elf_section_data(sec)->rel_hdr.sh_name));
3132 if (rel_sec_name == NULL)
b34976b6 3133 return FALSE;
252b5132
RH		 3134
3135 BFD_ASSERT (strncmp (rel_sec_name, ".rela", 5) == 0
3136 && strcmp (bfd_get_section_name (abfd, sec),
3137 rel_sec_name+5) == 0);
3138 }
3139
3140 /* We need to create the section here now whether we eventually
3141 use it or not so that it gets mapped to an output section by
3142 the linker. If not used, we'll kill it in
3143 size_dynamic_sections. */
3144 if (sreloc == NULL)
3145 {
3146 sreloc = bfd_get_section_by_name (dynobj, rel_sec_name);
3147 if (sreloc == NULL)
3148 {
dc810e39
AM		 3149 flagword flags;
3150
252b5132 3151 sreloc = bfd_make_section (dynobj, rel_sec_name);
dc810e39
AM		 3152 flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
3153 | SEC_LINKER_CREATED | SEC_READONLY);
3154 if (sec->flags & SEC_ALLOC)
3155 flags |= SEC_ALLOC | SEC_LOAD;
252b5132 3156 if (sreloc == NULL
dc810e39 3157 || !bfd_set_section_flags (dynobj, sreloc, flags)
252b5132 3158 || !bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3159 return FALSE;
252b5132
RH		 3160 }
3161 }
3162
3163 if (h)
3164 {
3165 /* Since we havn't seen all of the input symbols yet, we
3166 don't know whether we'll actually need a dynamic relocation
3167 entry for this reloc. So make a record of it. Once we
3168 find out if this thing needs dynamic relocation we'll
fe8bc63d 3169 expand the relocation sections by the appropriate amount. */
252b5132
RH		 3170
3171 struct alpha_elf_reloc_entry *rent;
3172
3173 for (rent = h->reloc_entries; rent; rent = rent->next)
3174 if (rent->rtype == r_type && rent->srel == sreloc)
3175 break;
3176
3177 if (!rent)
3178 {
dc810e39
AM		 3179 amt = sizeof (struct alpha_elf_reloc_entry);
3180 rent = (struct alpha_elf_reloc_entry *) bfd_alloc (abfd, amt);
252b5132 3181 if (!rent)
b34976b6 3182 return FALSE;
252b5132
RH		 3183
3184 rent->srel = sreloc;
3185 rent->rtype = r_type;
3186 rent->count = 1;
73896efb
RH		 3187 rent->reltext = ((sec->flags & (SEC_READONLY | SEC_ALLOC))
3188 == (SEC_READONLY | SEC_ALLOC));
252b5132
RH		 3189
3190 rent->next = h->reloc_entries;
3191 h->reloc_entries = rent;
3192 }
3193 else
3194 rent->count++;
3195 }
c853d7f6 3196 else if (info->shared)
252b5132 3197 {
c555c5c5
AM		 3198 /* If this is a shared library, and the section is to be
3199 loaded into memory, we need a RELATIVE reloc. */
eea6121a 3200 sreloc->size += sizeof (Elf64_External_Rela);
c853d7f6
RH		 3201 if ((sec->flags & (SEC_READONLY | SEC_ALLOC))
3202 == (SEC_READONLY | SEC_ALLOC))
fcfbdf31 3203 info->flags |= DF_TEXTREL;
252b5132 3204 }
252b5132
RH		 3205 }
3206 }
3207
b34976b6 3208 return TRUE;
252b5132
RH		 3209}
3210
3211/* Adjust a symbol defined by a dynamic object and referenced by a
3212 regular object. The current definition is in some section of the
3213 dynamic object, but we're not including those sections. We have to
3214 change the definition to something the rest of the link can
3215 understand. */
3216
b34976b6 3217static bfd_boolean
252b5132
RH		 3218elf64_alpha_adjust_dynamic_symbol (info, h)
3219 struct bfd_link_info *info;
3220 struct elf_link_hash_entry *h;
3221{
3222 bfd *dynobj;
3223 asection *s;
3224 struct alpha_elf_link_hash_entry *ah;
3225
3226 dynobj = elf_hash_table(info)->dynobj;
3227 ah = (struct alpha_elf_link_hash_entry *)h;
3228
3229 /* Now that we've seen all of the input symbols, finalize our decision
3230 about whether this symbol should get a .plt entry. */
3231
8ba89f17 3232 if (alpha_elf_dynamic_symbol_p (h, info)
252b5132
RH		 3233 && ((h->type == STT_FUNC
3234 && !(ah->flags & ALPHA_ELF_LINK_HASH_LU_ADDR))
3235 || (h->type == STT_NOTYPE
3765b1be
RH		 3236 && (ah->flags & ALPHA_ELF_LINK_HASH_LU_FUNC)
3237 && !(ah->flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC)))
252b5132
RH		 3238 /* Don't prevent otherwise valid programs from linking by attempting
3239 to create a new .got entry somewhere. A Correct Solution would be
3240 to add a new .got section to a new object file and let it be merged
3241 somewhere later. But for now don't bother. */
3242 && ah->got_entries)
3243 {
f5385ebf 3244 h->needs_plt = 1;
252b5132
RH		 3245
3246 s = bfd_get_section_by_name(dynobj, ".plt");
3247 if (!s && !elf64_alpha_create_dynamic_sections (dynobj, info))
b34976b6 3248 return FALSE;
252b5132
RH		 3249
3250 /* The first bit of the .plt is reserved. */
eea6121a
AM		 3251 if (s->size == 0)
3252 s->size = PLT_HEADER_SIZE;
252b5132 3253
eea6121a
AM		 3254 h->plt.offset = s->size;
3255 s->size += PLT_ENTRY_SIZE;
252b5132
RH		 3256
3257 /* If this symbol is not defined in a regular file, and we are not
3258 generating a shared library, then set the symbol to the location
3259 in the .plt. This is required to make function pointers compare
3260 equal between the normal executable and the shared library. */
3261 if (! info->shared
3262 && h->root.type != bfd_link_hash_defweak)
3263 {
cc03ec80
RH		 3264 ah->plt_old_section = h->root.u.def.section;
3265 ah->plt_old_value = h->root.u.def.value;
3266 ah->flags |= ALPHA_ELF_LINK_HASH_PLT_LOC;
252b5132
RH		 3267 h->root.u.def.section = s;
3268 h->root.u.def.value = h->plt.offset;
3269 }
3270
3271 /* We also need a JMP_SLOT entry in the .rela.plt section. */
3272 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3273 BFD_ASSERT (s != NULL);
eea6121a 3274 s->size += sizeof (Elf64_External_Rela);
252b5132 3275
b34976b6 3276 return TRUE;
252b5132
RH		 3277 }
3278 else
f5385ebf 3279 h->needs_plt = 0;
252b5132
RH		 3280
3281 /* If this is a weak symbol, and there is a real definition, the
3282 processor independent code will have arranged for us to see the
3283 real definition first, and we can just use the same value. */
f6e332e6 3284 if (h->u.weakdef != NULL)
252b5132 3285 {
f6e332e6
AM		 3286 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3287 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3288 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3289 h->root.u.def.value = h->u.weakdef->root.u.def.value;
b34976b6 3290 return TRUE;
252b5132
RH		 3291 }
3292
3293 /* This is a reference to a symbol defined by a dynamic object which
3294 is not a function. The Alpha, since it uses .got entries for all
3295 symbols even in regular objects, does not need the hackery of a
3296 .dynbss section and COPY dynamic relocations. */
3297
b34976b6 3298 return TRUE;
252b5132
RH		 3299}
3300
3301/* Symbol versioning can create new symbols, and make our old symbols
3302 indirect to the new ones. Consolidate the got and reloc information
3303 in these situations. */
3304
b34976b6 3305static bfd_boolean
252b5132
RH		 3306elf64_alpha_merge_ind_symbols (hi, dummy)
3307 struct alpha_elf_link_hash_entry *hi;
56fc028e 3308 PTR dummy ATTRIBUTE_UNUSED;
252b5132
RH		 3309{
3310 struct alpha_elf_link_hash_entry *hs;
3311
3312 if (hi->root.root.type != bfd_link_hash_indirect)
b34976b6 3313 return TRUE;
252b5132
RH		 3314 hs = hi;
3315 do {
3316 hs = (struct alpha_elf_link_hash_entry *)hs->root.root.u.i.link;
3317 } while (hs->root.root.type == bfd_link_hash_indirect);
3318
3319 /* Merge the flags. Whee. */
3320
3321 hs->flags |= hi->flags;
3322
3323 /* Merge the .got entries. Cannibalize the old symbol's list in
3324 doing so, since we don't need it anymore. */
3325
3326 if (hs->got_entries == NULL)
3327 hs->got_entries = hi->got_entries;
3328 else
3329 {
3330 struct alpha_elf_got_entry *gi, *gs, *gin, *gsh;
3331
3332 gsh = hs->got_entries;
3333 for (gi = hi->got_entries; gi ; gi = gin)
3334 {
3335 gin = gi->next;
3336 for (gs = gsh; gs ; gs = gs->next)
3765b1be
RH		 3337 if (gi->gotobj == gs->gotobj
3338 && gi->reloc_type == gs->reloc_type
3339 && gi->addend == gs->addend)
3340 {
3341 gi->use_count += gs->use_count;
3342 goto got_found;
3343 }
252b5132
RH		 3344 gi->next = hs->got_entries;
3345 hs->got_entries = gi;
3346 got_found:;
3347 }
3348 }
3349 hi->got_entries = NULL;
3350
3351 /* And similar for the reloc entries. */
3352
3353 if (hs->reloc_entries == NULL)
3354 hs->reloc_entries = hi->reloc_entries;
3355 else
3356 {
3357 struct alpha_elf_reloc_entry *ri, *rs, *rin, *rsh;
3358
3359 rsh = hs->reloc_entries;
3360 for (ri = hi->reloc_entries; ri ; ri = rin)
3361 {
3362 rin = ri->next;
3363 for (rs = rsh; rs ; rs = rs->next)
82988bff 3364 if (ri->rtype == rs->rtype && ri->srel == rs->srel)
252b5132
RH		 3365 {
3366 rs->count += ri->count;
3367 goto found_reloc;
3368 }
3369 ri->next = hs->reloc_entries;
3370 hs->reloc_entries = ri;
3371 found_reloc:;
3372 }
3373 }
3374 hi->reloc_entries = NULL;
3375
b34976b6 3376 return TRUE;
252b5132
RH		 3377}
3378
3379/* Is it possible to merge two object file's .got tables? */
3380
b34976b6 3381static bfd_boolean
252b5132
RH		 3382elf64_alpha_can_merge_gots (a, b)
3383 bfd *a, *b;
3384{
3765b1be 3385 int total = alpha_elf_tdata (a)->total_got_size;
252b5132
RH		 3386 bfd *bsub;
3387
3388 /* Trivial quick fallout test. */
3765b1be 3389 if (total + alpha_elf_tdata (b)->total_got_size <= MAX_GOT_SIZE)
b34976b6 3390 return TRUE;
252b5132
RH		 3391
3392 /* By their nature, local .got entries cannot be merged. */
3765b1be 3393 if ((total += alpha_elf_tdata (b)->local_got_size) > MAX_GOT_SIZE)
b34976b6 3394 return FALSE;
252b5132
RH		 3395
3396 /* Failing the common trivial comparison, we must effectively
3397 perform the merge. Not actually performing the merge means that
3398 we don't have to store undo information in case we fail. */
3399 for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
3400 {
3401 struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes (bsub);
3402 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
3403 int i, n;
3404
d9bc7a44 3405 n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
252b5132
RH		 3406 for (i = 0; i < n; ++i)
3407 {
3408 struct alpha_elf_got_entry *ae, *be;
3409 struct alpha_elf_link_hash_entry *h;
3410
3411 h = hashes[i];
3412 while (h->root.root.type == bfd_link_hash_indirect
3413 || h->root.root.type == bfd_link_hash_warning)
3414 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
3415
3416 for (be = h->got_entries; be ; be = be->next)
3417 {
3418 if (be->use_count == 0)
3419 continue;
3420 if (be->gotobj != b)
3421 continue;
3422
3423 for (ae = h->got_entries; ae ; ae = ae->next)
3765b1be
RH		 3424 if (ae->gotobj == a
3425 && ae->reloc_type == be->reloc_type
3426 && ae->addend == be->addend)
252b5132
RH		 3427 goto global_found;
3428
3765b1be
RH		 3429 total += alpha_got_entry_size (be->reloc_type);
3430 if (total > MAX_GOT_SIZE)
b34976b6 3431 return FALSE;
252b5132
RH		 3432 global_found:;
3433 }
3434 }
3435 }
3436
b34976b6 3437 return TRUE;
252b5132
RH		 3438}
3439
3440/* Actually merge two .got tables. */
3441
3442static void
3443elf64_alpha_merge_gots (a, b)
3444 bfd *a, *b;
3445{
3765b1be 3446 int total = alpha_elf_tdata (a)->total_got_size;
252b5132
RH		 3447 bfd *bsub;
3448
3449 /* Remember local expansion. */
3450 {
3765b1be 3451 int e = alpha_elf_tdata (b)->local_got_size;
252b5132 3452 total += e;
3765b1be 3453 alpha_elf_tdata (a)->local_got_size += e;
252b5132
RH		 3454 }
3455
3456 for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
3457 {
3458 struct alpha_elf_got_entry **local_got_entries;
3459 struct alpha_elf_link_hash_entry **hashes;
3460 Elf_Internal_Shdr *symtab_hdr;
3461 int i, n;
3462
3463 /* Let the local .got entries know they are part of a new subsegment. */
3464 local_got_entries = alpha_elf_tdata (bsub)->local_got_entries;
3465 if (local_got_entries)
3466 {
3467 n = elf_tdata (bsub)->symtab_hdr.sh_info;
3468 for (i = 0; i < n; ++i)
3469 {
3470 struct alpha_elf_got_entry *ent;
3471 for (ent = local_got_entries[i]; ent; ent = ent->next)
3472 ent->gotobj = a;
3473 }
3474 }
3475
3476 /* Merge the global .got entries. */
3477 hashes = alpha_elf_sym_hashes (bsub);
3478 symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
3479
d9bc7a44 3480 n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
252b5132
RH		 3481 for (i = 0; i < n; ++i)
3482 {
3483 struct alpha_elf_got_entry *ae, *be, **pbe, **start;
3484 struct alpha_elf_link_hash_entry *h;
3485
3486 h = hashes[i];
3487 while (h->root.root.type == bfd_link_hash_indirect
3488 || h->root.root.type == bfd_link_hash_warning)
3489 h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
3490
3491 start = &h->got_entries;
3492 for (pbe = start, be = *start; be ; pbe = &be->next, be = be->next)
3493 {
3494 if (be->use_count == 0)
3495 {
3496 *pbe = be->next;
3497 continue;
3498 }
3499 if (be->gotobj != b)
3500 continue;
3501
3502 for (ae = *start; ae ; ae = ae->next)
3765b1be
RH		 3503 if (ae->gotobj == a
3504 && ae->reloc_type == be->reloc_type
3505 && ae->addend == be->addend)
252b5132
RH		 3506 {
3507 ae->flags |= be->flags;
3508 ae->use_count += be->use_count;
3509 *pbe = be->next;
3510 goto global_found;
3511 }
3512 be->gotobj = a;
3765b1be 3513 total += alpha_got_entry_size (be->reloc_type);
252b5132
RH		 3514
3515 global_found:;
3516 }
3517 }
3518
3519 alpha_elf_tdata (bsub)->gotobj = a;
3520 }
3765b1be 3521 alpha_elf_tdata (a)->total_got_size = total;
252b5132
RH		 3522
3523 /* Merge the two in_got chains. */
3524 {
3525 bfd *next;
3526
3527 bsub = a;
3528 while ((next = alpha_elf_tdata (bsub)->in_got_link_next) != NULL)
3529 bsub = next;
3530
3531 alpha_elf_tdata (bsub)->in_got_link_next = b;
3532 }
3533}
3534
3535/* Calculate the offsets for the got entries. */
3536
b34976b6 3537static bfd_boolean
252b5132
RH		 3538elf64_alpha_calc_got_offsets_for_symbol (h, arg)
3539 struct alpha_elf_link_hash_entry *h;
52b9d213 3540 PTR arg ATTRIBUTE_UNUSED;
252b5132 3541{
0d5f9994 3542 bfd_boolean result = TRUE;
252b5132
RH		 3543 struct alpha_elf_got_entry *gotent;
3544
e92d460e
AM		 3545 if (h->root.root.type == bfd_link_hash_warning)
3546 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3547
252b5132
RH		 3548 for (gotent = h->got_entries; gotent; gotent = gotent->next)
3549 if (gotent->use_count > 0)
3550 {
0d5f9994
NC		 3551 struct alpha_elf_obj_tdata *td;
3552 bfd_size_type *plge;
252b5132 3553
0d5f9994
NC		 3554 td = alpha_elf_tdata (gotent->gotobj);
3555 if (td == NULL)
3556 {
3557 _bfd_error_handler (_("Symbol %s has no GOT subsection for offset 0x%x"),
3558 h->root.root.root.string, gotent->got_offset);
3559 result = FALSE;
3560 continue;
3561 }
eea6121a 3562 plge = &td->got->size;
252b5132 3563 gotent->got_offset = *plge;
3765b1be 3564 *plge += alpha_got_entry_size (gotent->reloc_type);
252b5132
RH		 3565 }
3566
0d5f9994 3567 return result;
252b5132
RH		 3568}
3569
3570static void
3571elf64_alpha_calc_got_offsets (info)
3572 struct bfd_link_info *info;
3573{
3574 bfd *i, *got_list = alpha_elf_hash_table(info)->got_list;
3575
3576 /* First, zero out the .got sizes, as we may be recalculating the
3577 .got after optimizing it. */
3578 for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
eea6121a 3579 alpha_elf_tdata(i)->got->size = 0;
252b5132
RH		 3580
3581 /* Next, fill in the offsets for all the global entries. */
3582 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3583 elf64_alpha_calc_got_offsets_for_symbol,
3584 NULL);
3585
3586 /* Finally, fill in the offsets for the local entries. */
3587 for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
3588 {
eea6121a 3589 bfd_size_type got_offset = alpha_elf_tdata(i)->got->size;
252b5132
RH		 3590 bfd *j;
3591
3592 for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
3593 {
3594 struct alpha_elf_got_entry **local_got_entries, *gotent;
3595 int k, n;
3596
3597 local_got_entries = alpha_elf_tdata(j)->local_got_entries;
3598 if (!local_got_entries)
3599 continue;
3600
3601 for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
3602 for (gotent = local_got_entries[k]; gotent; gotent = gotent->next)
3603 if (gotent->use_count > 0)
3604 {
3605 gotent->got_offset = got_offset;
3765b1be 3606 got_offset += alpha_got_entry_size (gotent->reloc_type);
252b5132
RH		 3607 }
3608 }
3609
eea6121a 3610 alpha_elf_tdata(i)->got->size = got_offset;
252b5132
RH		 3611 }
3612}
3613
3614/* Constructs the gots. */
3615
b34976b6 3616static bfd_boolean
f44f99a5 3617elf64_alpha_size_got_sections (info)
252b5132
RH		 3618 struct bfd_link_info *info;
3619{
52b9d213 3620 bfd *i, *got_list, *cur_got_obj = NULL;
252b5132
RH		 3621 int something_changed = 0;
3622
3623 got_list = alpha_elf_hash_table (info)->got_list;
3624
3625 /* On the first time through, pretend we have an existing got list
3626 consisting of all of the input files. */
3627 if (got_list == NULL)
3628 {
3629 for (i = info->input_bfds; i ; i = i->link_next)
3630 {
3631 bfd *this_got = alpha_elf_tdata (i)->gotobj;
3632 if (this_got == NULL)
3633 continue;
3634
4cc11e76 3635 /* We are assuming no merging has yet occurred. */
252b5132
RH		 3636 BFD_ASSERT (this_got == i);
3637
3765b1be 3638 if (alpha_elf_tdata (this_got)->total_got_size > MAX_GOT_SIZE)
252b5132
RH		 3639 {
3640 /* Yikes! A single object file has too many entries. */
3641 (*_bfd_error_handler)
d003868e
AM		 3642 (_("%B: .got subsegment exceeds 64K (size %d)"),
3643 i, alpha_elf_tdata (this_got)->total_got_size);
b34976b6 3644 return FALSE;
252b5132
RH		 3645 }
3646
3647 if (got_list == NULL)
3648 got_list = this_got;
3649 else
3650 alpha_elf_tdata(cur_got_obj)->got_link_next = this_got;
3651 cur_got_obj = this_got;
3652 }
3653
3654 /* Strange degenerate case of no got references. */
3655 if (got_list == NULL)
b34976b6 3656 return TRUE;
252b5132
RH		 3657
3658 alpha_elf_hash_table (info)->got_list = got_list;
3659
3660 /* Force got offsets to be recalculated. */
3661 something_changed = 1;
3662 }
3663
3664 cur_got_obj = got_list;
3665 i = alpha_elf_tdata(cur_got_obj)->got_link_next;
3666 while (i != NULL)
3667 {
3668 if (elf64_alpha_can_merge_gots (cur_got_obj, i))
3669 {
3670 elf64_alpha_merge_gots (cur_got_obj, i);
3671 i = alpha_elf_tdata(i)->got_link_next;
3672 alpha_elf_tdata(cur_got_obj)->got_link_next = i;
3673 something_changed = 1;
3674 }
3675 else
3676 {
3677 cur_got_obj = i;
3678 i = alpha_elf_tdata(i)->got_link_next;
3679 }
3680 }
3681
3682 /* Once the gots have been merged, fill in the got offsets for
3683 everything therein. */
3684 if (1 || something_changed)
3685 elf64_alpha_calc_got_offsets (info);
3686
b34976b6 3687 return TRUE;
252b5132
RH		 3688}
3689
cedb70c5 3690/* Called from relax_section to rebuild the PLT in light of
f44f99a5
RH		 3691 potential changes in the function's status. */
3692
b34976b6 3693static bfd_boolean
f44f99a5
RH		 3694elf64_alpha_size_plt_section (info)
3695 struct bfd_link_info *info;
3696{
3697 asection *splt, *spltrel;
3698 unsigned long entries;
3699 bfd *dynobj;
3700
3701 dynobj = elf_hash_table(info)->dynobj;
3702 splt = bfd_get_section_by_name(dynobj, ".plt");
3703 if (splt == NULL)
b34976b6 3704 return TRUE;
f44f99a5 3705
eea6121a 3706 splt->size = 0;
f44f99a5
RH		 3707
3708 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3709 elf64_alpha_size_plt_section_1, splt);
3710
f44f99a5
RH		 3711 /* Every plt entry requires a JMP_SLOT relocation. */
3712 spltrel = bfd_get_section_by_name (dynobj, ".rela.plt");
eea6121a
AM		 3713 if (splt->size)
3714 entries = (splt->size - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
f44f99a5
RH		 3715 else
3716 entries = 0;
eea6121a 3717 spltrel->size = entries * sizeof (Elf64_External_Rela);
f44f99a5 3718
b34976b6 3719 return TRUE;
f44f99a5
RH		 3720}
3721
b34976b6 3722static bfd_boolean
f44f99a5
RH		 3723elf64_alpha_size_plt_section_1 (h, data)
3724 struct alpha_elf_link_hash_entry *h;
3725 PTR data;
3726{
3727 asection *splt = (asection *) data;
3728 struct alpha_elf_got_entry *gotent;
3729
3730 /* If we didn't need an entry before, we still don't. */
f5385ebf 3731 if (!h->root.needs_plt)
b34976b6 3732 return TRUE;
f44f99a5
RH		 3733
3734 /* There must still be a LITERAL got entry for the function. */
3735 for (gotent = h->got_entries; gotent ; gotent = gotent->next)
3736 if (gotent->reloc_type == R_ALPHA_LITERAL
3737 && gotent->use_count > 0)
3738 break;
3739
3740 /* If there is, reset the PLT offset. If not, there's no longer
3741 a need for the PLT entry. */
3742 if (gotent)
3743 {
eea6121a
AM		 3744 if (splt->size == 0)
3745 splt->size = PLT_HEADER_SIZE;
3746 h->root.plt.offset = splt->size;
3747 splt->size += PLT_ENTRY_SIZE;
f44f99a5
RH		 3748 }
3749 else
3750 {
f5385ebf 3751 h->root.needs_plt = 0;
f44f99a5 3752 h->root.plt.offset = -1;
cc03ec80
RH		 3753
3754 /* Undo the definition frobbing begun in adjust_dynamic_symbol. */
3755 if (h->flags & ALPHA_ELF_LINK_HASH_PLT_LOC)
3756 {
3757 h->root.root.u.def.section = h->plt_old_section;
3758 h->root.root.u.def.value = h->plt_old_value;
3759 h->flags &= ~ALPHA_ELF_LINK_HASH_PLT_LOC;
3760 }
f44f99a5
RH		 3761 }
3762
b34976b6 3763 return TRUE;
f44f99a5
RH		 3764}
3765
b34976b6 3766static bfd_boolean
252b5132 3767elf64_alpha_always_size_sections (output_bfd, info)
f44f99a5 3768 bfd *output_bfd ATTRIBUTE_UNUSED;
252b5132
RH		 3769 struct bfd_link_info *info;
3770{
3771 bfd *i;
3772
1049f94e 3773 if (info->relocatable)
b34976b6 3774 return TRUE;
252b5132
RH		 3775
3776 /* First, take care of the indirect symbols created by versioning. */
3777 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3778 elf64_alpha_merge_ind_symbols,
3779 NULL);
3780
f44f99a5 3781 if (!elf64_alpha_size_got_sections (info))
b34976b6 3782 return FALSE;
252b5132
RH		 3783
3784 /* Allocate space for all of the .got subsections. */
3785 i = alpha_elf_hash_table (info)->got_list;
3786 for ( ; i ; i = alpha_elf_tdata(i)->got_link_next)
3787 {
3788 asection *s = alpha_elf_tdata(i)->got;
eea6121a 3789 if (s->size > 0)
252b5132 3790 {
eea6121a 3791 s->contents = (bfd_byte *) bfd_zalloc (i, s->size);
252b5132 3792 if (s->contents == NULL)
b34976b6 3793 return FALSE;
252b5132
RH		 3794 }
3795 }
3796
b34976b6 3797 return TRUE;
252b5132
RH		 3798}
3799
3765b1be
RH		 3800/* The number of dynamic relocations required by a static relocation. */
3801
3802static int
3803alpha_dynamic_entries_for_reloc (r_type, dynamic, shared)
3804 int r_type, dynamic, shared;
3805{
3806 switch (r_type)
3807 {
3808 /* May appear in GOT entries. */
3809 case R_ALPHA_TLSGD:
3810 return (dynamic ? 2 : shared ? 1 : 0);
3811 case R_ALPHA_TLSLDM:
3812 return shared;
3813 case R_ALPHA_LITERAL:
1bbc9cec 3814 case R_ALPHA_GOTTPREL:
3765b1be
RH		 3815 return dynamic || shared;
3816 case R_ALPHA_GOTDTPREL:
3765b1be
RH		 3817 return dynamic;
3818
3819 /* May appear in data sections. */
3820 case R_ALPHA_REFLONG:
3821 case R_ALPHA_REFQUAD:
3765b1be 3822 case R_ALPHA_TPREL64:
1bbc9cec 3823 return dynamic || shared;
3765b1be
RH		 3824
3825 /* Everything else is illegal. We'll issue an error during
3826 relocate_section. */
3827 default:
3828 return 0;
3829 }
3830}
3831
252b5132
RH		 3832/* Work out the sizes of the dynamic relocation entries. */
3833
b34976b6 3834static bfd_boolean
252b5132
RH		 3835elf64_alpha_calc_dynrel_sizes (h, info)
3836 struct alpha_elf_link_hash_entry *h;
3837 struct bfd_link_info *info;
3838{
b34976b6 3839 bfd_boolean dynamic;
3765b1be 3840 struct alpha_elf_reloc_entry *relent;
f44f99a5 3841 unsigned long entries;
3765b1be 3842
e92d460e
AM		 3843 if (h->root.root.type == bfd_link_hash_warning)
3844 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3845
252b5132
RH		 3846 /* If the symbol was defined as a common symbol in a regular object
3847 file, and there was no definition in any dynamic object, then the
3848 linker will have allocated space for the symbol in a common
3849 section but the ELF_LINK_HASH_DEF_REGULAR flag will not have been
3850 set. This is done for dynamic symbols in
3851 elf_adjust_dynamic_symbol but this is not done for non-dynamic
3852 symbols, somehow. */
f5385ebf
AM		 3853 if (!h->root.def_regular
3854 && h->root.ref_regular
3855 && !h->root.def_dynamic
252b5132
RH		 3856 && (h->root.root.type == bfd_link_hash_defined
3857 || h->root.root.type == bfd_link_hash_defweak)
3858 && !(h->root.root.u.def.section->owner->flags & DYNAMIC))
f5385ebf 3859 h->root.def_regular = 1;
252b5132
RH		 3860
3861 /* If the symbol is dynamic, we'll need all the relocations in their
3862 natural form. If this is a shared object, and it has been forced
3863 local, we'll need the same number of RELATIVE relocations. */
3864
3765b1be 3865 dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
252b5132 3866
3765b1be
RH		 3867 for (relent = h->reloc_entries; relent; relent = relent->next)
3868 {
3869 entries = alpha_dynamic_entries_for_reloc (relent->rtype, dynamic,
3870 info->shared);
3871 if (entries)
3872 {
eea6121a 3873 relent->srel->size +=
3765b1be
RH		 3874 entries * sizeof (Elf64_External_Rela) * relent->count;
3875 if (relent->reltext)
3876 info->flags |= DT_TEXTREL;
3877 }
3878 }
252b5132 3879
b34976b6 3880 return TRUE;
f44f99a5
RH		 3881}
3882
3883/* Set the sizes of the dynamic relocation sections. */
3884
b34976b6 3885static bfd_boolean
f44f99a5
RH		 3886elf64_alpha_size_rela_got_section (info)
3887 struct bfd_link_info *info;
3888{
3889 unsigned long entries;
3890 bfd *i, *dynobj;
3891 asection *srel;
3892
3893 /* Shared libraries often require RELATIVE relocs, and some relocs
3894 require attention for the main application as well. */
cedb70c5 3895
f44f99a5
RH		 3896 entries = 0;
3897 for (i = alpha_elf_hash_table(info)->got_list;
3898 i ; i = alpha_elf_tdata(i)->got_link_next)
3899 {
3900 bfd *j;
3901
3902 for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
3903 {
3904 struct alpha_elf_got_entry **local_got_entries, *gotent;
3905 int k, n;
3906
3907 local_got_entries = alpha_elf_tdata(j)->local_got_entries;
3908 if (!local_got_entries)
3909 continue;
3910
3911 for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
3912 for (gotent = local_got_entries[k];
3913 gotent ; gotent = gotent->next)
3914 if (gotent->use_count > 0)
3915 entries += (alpha_dynamic_entries_for_reloc
3916 (gotent->reloc_type, 0, info->shared));
3917 }
3918 }
3919
3920 dynobj = elf_hash_table(info)->dynobj;
3921 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3922 if (!srel)
3923 {
3924 BFD_ASSERT (entries == 0);
b34976b6 3925 return TRUE;
f44f99a5 3926 }
eea6121a 3927 srel->size = sizeof (Elf64_External_Rela) * entries;
f44f99a5
RH		 3928
3929 /* Now do the non-local symbols. */
3930 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
3931 elf64_alpha_size_rela_got_1, info);
3932
b34976b6 3933 return TRUE;
f44f99a5
RH		 3934}
3935
3936/* Subroutine of elf64_alpha_size_rela_got_section for doing the
3937 global symbols. */
3938
b34976b6 3939static bfd_boolean
f44f99a5
RH		 3940elf64_alpha_size_rela_got_1 (h, info)
3941 struct alpha_elf_link_hash_entry *h;
3942 struct bfd_link_info *info;
3943{
b34976b6 3944 bfd_boolean dynamic;
f44f99a5
RH		 3945 struct alpha_elf_got_entry *gotent;
3946 unsigned long entries;
3947
3948 if (h->root.root.type == bfd_link_hash_warning)
3949 h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
3950
3951 /* If the symbol is dynamic, we'll need all the relocations in their
3952 natural form. If this is a shared object, and it has been forced
3953 local, we'll need the same number of RELATIVE relocations. */
3954
3955 dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
3956
3765b1be
RH		 3957 entries = 0;
3958 for (gotent = h->got_entries; gotent ; gotent = gotent->next)
f44f99a5
RH		 3959 if (gotent->use_count > 0)
3960 entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type,
3961 dynamic, info->shared);
252b5132 3962
3765b1be
RH		 3963 /* If we are using a .plt entry, subtract one, as the first
3964 reference uses a .rela.plt entry instead. */
3965 if (h->root.plt.offset != MINUS_ONE)
3966 entries--;
252b5132 3967
3765b1be
RH		 3968 if (entries > 0)
3969 {
3970 bfd *dynobj = elf_hash_table(info)->dynobj;
3971 asection *srel = bfd_get_section_by_name (dynobj, ".rela.got");
3972 BFD_ASSERT (srel != NULL);
eea6121a 3973 srel->size += sizeof (Elf64_External_Rela) * entries;
252b5132
RH		 3974 }
3975
b34976b6 3976 return TRUE;
252b5132
RH		 3977}
3978
3979/* Set the sizes of the dynamic sections. */
3980
b34976b6 3981static bfd_boolean
252b5132 3982elf64_alpha_size_dynamic_sections (output_bfd, info)
24a35864 3983 bfd *output_bfd ATTRIBUTE_UNUSED;
252b5132
RH		 3984 struct bfd_link_info *info;
3985{
3986 bfd *dynobj;
3987 asection *s;
b34976b6 3988 bfd_boolean relplt;
252b5132
RH		 3989
3990 dynobj = elf_hash_table(info)->dynobj;
3991 BFD_ASSERT(dynobj != NULL);
3992
3993 if (elf_hash_table (info)->dynamic_sections_created)
3994 {
3995 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 3996 if (info->executable)
252b5132
RH		 3997 {
3998 s = bfd_get_section_by_name (dynobj, ".interp");
3999 BFD_ASSERT (s != NULL);
eea6121a 4000 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
252b5132
RH		 4001 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4002 }
4003
4004 /* Now that we've seen all of the input files, we can decide which
4005 symbols need dynamic relocation entries and which don't. We've
4006 collected information in check_relocs that we can now apply to
4007 size the dynamic relocation sections. */
4008 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
f44f99a5 4009 elf64_alpha_calc_dynrel_sizes, info);
252b5132 4010
f44f99a5 4011 elf64_alpha_size_rela_got_section (info);
252b5132
RH		 4012 }
4013 /* else we're not dynamic and by definition we don't need such things. */
4014
4015 /* The check_relocs and adjust_dynamic_symbol entry points have
4016 determined the sizes of the various dynamic sections. Allocate
4017 memory for them. */
b34976b6 4018 relplt = FALSE;
252b5132
RH		 4019 for (s = dynobj->sections; s != NULL; s = s->next)
4020 {
4021 const char *name;
b34976b6 4022 bfd_boolean strip;
252b5132
RH		 4023
4024 if (!(s->flags & SEC_LINKER_CREATED))
4025 continue;
4026
4027 /* It's OK to base decisions on the section name, because none
4028 of the dynobj section names depend upon the input files. */
4029 name = bfd_get_section_name (dynobj, s);
4030
4031 /* If we don't need this section, strip it from the output file.
4032 This is to handle .rela.bss and .rela.plt. We must create it
4033 in create_dynamic_sections, because it must be created before
4034 the linker maps input sections to output sections. The
4035 linker does that before adjust_dynamic_symbol is called, and
4036 it is that function which decides whether anything needs to
4037 go into these sections. */
4038
b34976b6 4039 strip = FALSE;
252b5132
RH		 4040
4041 if (strncmp (name, ".rela", 5) == 0)
4042 {
eea6121a 4043 strip = (s->size == 0);
252b5132
RH		 4044
4045 if (!strip)
4046 {
252b5132 4047 if (strcmp(name, ".rela.plt") == 0)
b34976b6 4048 relplt = TRUE;
252b5132
RH		 4049
4050 /* We use the reloc_count field as a counter if we need
4051 to copy relocs into the output file. */
4052 s->reloc_count = 0;
4053 }
4054 }
4055 else if (strcmp (name, ".plt") != 0)
4056 {
4057 /* It's not one of our dynamic sections, so don't allocate space. */
4058 continue;
4059 }
4060
4061 if (strip)
7f8d5fc9 4062 _bfd_strip_section_from_output (info, s);
252b5132
RH		 4063 else
4064 {
4065 /* Allocate memory for the section contents. */
eea6121a
AM		 4066 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
4067 if (s->contents == NULL && s->size != 0)
b34976b6 4068 return FALSE;
252b5132
RH		 4069 }
4070 }
4071
252b5132
RH		 4072 if (elf_hash_table (info)->dynamic_sections_created)
4073 {
4074 /* Add some entries to the .dynamic section. We fill in the
4075 values later, in elf64_alpha_finish_dynamic_sections, but we
4076 must add the entries now so that we get the correct size for
4077 the .dynamic section. The DT_DEBUG entry is filled in by the
4078 dynamic linker and used by the debugger. */
dc810e39 4079#define add_dynamic_entry(TAG, VAL) \
5a580b3a 4080 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 4081
36af4a4e 4082 if (info->executable)
252b5132 4083 {
dc810e39 4084 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 4085 return FALSE;
252b5132
RH		 4086 }
4087
252b5132
RH		 4088 if (relplt)
4089 {
c0647bfc
JT		 4090 if (!add_dynamic_entry (DT_PLTGOT, 0)
4091 || !add_dynamic_entry (DT_PLTRELSZ, 0)
dc810e39
AM		 4092 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
4093 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 4094 return FALSE;
252b5132
RH		 4095 }
4096
dc810e39
AM		 4097 if (!add_dynamic_entry (DT_RELA, 0)
4098 || !add_dynamic_entry (DT_RELASZ, 0)
4099 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 4100 return FALSE;
252b5132 4101
fcfbdf31 4102 if (info->flags & DF_TEXTREL)
252b5132 4103 {
dc810e39 4104 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 4105 return FALSE;
252b5132
RH		 4106 }
4107 }
dc810e39 4108#undef add_dynamic_entry
252b5132 4109
b34976b6 4110 return TRUE;
252b5132
RH		 4111}
4112
1bbc9cec
RH		 4113/* Emit a dynamic relocation for (DYNINDX, RTYPE, ADDEND) at (SEC, OFFSET)
4114 into the next available slot in SREL. */
4115
4116static void
4117elf64_alpha_emit_dynrel (abfd, info, sec, srel, offset, dynindx, rtype, addend)
4118 bfd *abfd;
4119 struct bfd_link_info *info;
4120 asection *sec, *srel;
4121 bfd_vma offset, addend;
4122 long dynindx, rtype;
4123{
4124 Elf_Internal_Rela outrel;
4125 bfd_byte *loc;
4126
4127 BFD_ASSERT (srel != NULL);
4128
4129 outrel.r_info = ELF64_R_INFO (dynindx, rtype);
4130 outrel.r_addend = addend;
4131
4132 offset = _bfd_elf_section_offset (abfd, info, sec, offset);
4133 if ((offset | 1) != (bfd_vma) -1)
4134 outrel.r_offset = sec->output_section->vma + sec->output_offset + offset;
4135 else
4136 memset (&outrel, 0, sizeof (outrel));
4137
4138 loc = srel->contents;
4139 loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
4140 bfd_elf64_swap_reloca_out (abfd, &outrel, loc);
eea6121a 4141 BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count <= srel->size);
1bbc9cec
RH		 4142}
4143
4a67a098
RH		 4144/* Relocate an Alpha ELF section for a relocatable link.
4145
4146 We don't have to change anything unless the reloc is against a section
4147 symbol, in which case we have to adjust according to where the section
4148 symbol winds up in the output section. */
4149
b34976b6 4150static bfd_boolean
4a67a098
RH		 4151elf64_alpha_relocate_section_r (output_bfd, info, input_bfd, input_section,
4152 contents, relocs, local_syms, local_sections)
4153 bfd *output_bfd ATTRIBUTE_UNUSED;
4154 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4155 bfd *input_bfd;
4156 asection *input_section;
4157 bfd_byte *contents ATTRIBUTE_UNUSED;
4158 Elf_Internal_Rela *relocs;
4159 Elf_Internal_Sym *local_syms;
4160 asection **local_sections;
4161{
4162 unsigned long symtab_hdr_sh_info;
4163 Elf_Internal_Rela *rel;
4164 Elf_Internal_Rela *relend;
b34976b6 4165 bfd_boolean ret_val = TRUE;
4a67a098
RH		 4166
4167 symtab_hdr_sh_info = elf_tdata (input_bfd)->symtab_hdr.sh_info;
4168
4169 relend = relocs + input_section->reloc_count;
4170 for (rel = relocs; rel < relend; rel++)
4171 {
4172 unsigned long r_symndx;
4173 Elf_Internal_Sym *sym;
4174 asection *sec;
4175 unsigned long r_type;
4176
4177 r_type = ELF64_R_TYPE(rel->r_info);
4178 if (r_type >= R_ALPHA_max)
4179 {
4180 (*_bfd_error_handler)
d003868e
AM		 4181 (_("%B: unknown relocation type %d"),
4182 input_bfd, (int) r_type);
4a67a098 4183 bfd_set_error (bfd_error_bad_value);
b34976b6 4184 ret_val = FALSE;
4a67a098
RH		 4185 continue;
4186 }
4187
4188 r_symndx = ELF64_R_SYM(rel->r_info);
4189
4190 /* The symbol associated with GPDISP and LITUSE is
4191 immaterial. Only the addend is significant. */
4192 if (r_type == R_ALPHA_GPDISP || r_type == R_ALPHA_LITUSE)
4193 continue;
4194
4195 if (r_symndx < symtab_hdr_sh_info)
4196 {
4197 sym = local_syms + r_symndx;
4198 if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
4199 {
4200 sec = local_sections[r_symndx];
4201 rel->r_addend += sec->output_offset + sym->st_value;
4202 }
4203 }
4204 }
4205
4206 return ret_val;
4207}
4208
252b5132
RH		 4209/* Relocate an Alpha ELF section. */
4210
b34976b6 4211static bfd_boolean
252b5132
RH		 4212elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
4213 contents, relocs, local_syms, local_sections)
4214 bfd *output_bfd;
4215 struct bfd_link_info *info;
4216 bfd *input_bfd;
4217 asection *input_section;
4218 bfd_byte *contents;
4219 Elf_Internal_Rela *relocs;
4220 Elf_Internal_Sym *local_syms;
4221 asection **local_sections;
4222{
4a67a098 4223 Elf_Internal_Shdr *symtab_hdr;
252b5132
RH		 4224 Elf_Internal_Rela *rel;
4225 Elf_Internal_Rela *relend;
4a67a098
RH		 4226 asection *sgot, *srel, *srelgot;
4227 bfd *dynobj, *gotobj;
4228 bfd_vma gp, tp_base, dtp_base;
4229 struct alpha_elf_got_entry **local_got_entries;
b34976b6 4230 bfd_boolean ret_val;
4a67a098 4231 const char *section_name;
252b5132 4232
4a67a098 4233 /* Handle relocatable links with a smaller loop. */
1049f94e 4234 if (info->relocatable)
4a67a098
RH		 4235 return elf64_alpha_relocate_section_r (output_bfd, info, input_bfd,
4236 input_section, contents, relocs,
4237 local_syms, local_sections);
4238
4239 /* This is a final link. */
4240
b34976b6 4241 ret_val = TRUE;
252b5132 4242
4a67a098 4243 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3765b1be 4244
4a67a098
RH		 4245 dynobj = elf_hash_table (info)->dynobj;
4246 if (dynobj)
4247 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4248 else
4249 srelgot = NULL;
4250
4251 section_name = (bfd_elf_string_from_elf_section
4252 (input_bfd, elf_elfheader(input_bfd)->e_shstrndx,
4253 elf_section_data(input_section)->rel_hdr.sh_name));
4254 BFD_ASSERT(section_name != NULL);
4255 srel = bfd_get_section_by_name (dynobj, section_name);
3765b1be 4256
4a67a098
RH		 4257 /* Find the gp value for this input bfd. */
4258 gotobj = alpha_elf_tdata (input_bfd)->gotobj;
4259 if (gotobj)
4260 {
4261 sgot = alpha_elf_tdata (gotobj)->got;
4262 gp = _bfd_get_gp_value (gotobj);
4263 if (gp == 0)
252b5132 4264 {
4a67a098
RH		 4265 gp = (sgot->output_section->vma
4266 + sgot->output_offset
4267 + 0x8000);
4268 _bfd_set_gp_value (gotobj, gp);
4269 }
4270 }
4271 else
4272 {
4273 sgot = NULL;
4274 gp = 0;
4275 }
3765b1be 4276
4a67a098
RH		 4277 local_got_entries = alpha_elf_tdata(input_bfd)->local_got_entries;
4278
e1918d23 4279 if (elf_hash_table (info)->tls_sec != NULL)
4a67a098 4280 {
e1918d23
AM		 4281 dtp_base = alpha_get_dtprel_base (info);
4282 tp_base = alpha_get_tprel_base (info);
252b5132 4283 }
4a67a098
RH		 4284 else
4285 dtp_base = tp_base = 0;
252b5132 4286
252b5132 4287 relend = relocs + input_section->reloc_count;
4a67a098 4288 for (rel = relocs; rel < relend; rel++)
252b5132 4289 {
4a67a098 4290 struct alpha_elf_link_hash_entry *h = NULL;
3765b1be
RH		 4291 struct alpha_elf_got_entry *gotent;
4292 bfd_reloc_status_type r;
252b5132
RH		 4293 reloc_howto_type *howto;
4294 unsigned long r_symndx;
4a67a098
RH		 4295 Elf_Internal_Sym *sym = NULL;
4296 asection *sec = NULL;
3765b1be 4297 bfd_vma value;
dc810e39 4298 bfd_vma addend;
b34976b6
AM		 4299 bfd_boolean dynamic_symbol_p;
4300 bfd_boolean undef_weak_ref = FALSE;
3765b1be 4301 unsigned long r_type;
252b5132
RH		 4302
4303 r_type = ELF64_R_TYPE(rel->r_info);
3765b1be 4304 if (r_type >= R_ALPHA_max)
252b5132 4305 {
3765b1be 4306 (*_bfd_error_handler)
d003868e
AM		 4307 (_("%B: unknown relocation type %d"),
4308 input_bfd, (int) r_type);
252b5132 4309 bfd_set_error (bfd_error_bad_value);
b34976b6 4310 ret_val = FALSE;
3765b1be 4311 continue;
252b5132 4312 }
252b5132 4313
3765b1be 4314 howto = elf64_alpha_howto_table + r_type;
252b5132
RH		 4315 r_symndx = ELF64_R_SYM(rel->r_info);
4316
cc03ec80
RH		 4317 /* The symbol for a TLSLDM reloc is ignored. Collapse the
4318 reloc to the 0 symbol so that they all match. */
4319 if (r_type == R_ALPHA_TLSLDM)
4320 r_symndx = 0;
4321
252b5132
RH		 4322 if (r_symndx < symtab_hdr->sh_info)
4323 {
8517fae7 4324 asection *msec;
252b5132
RH		 4325 sym = local_syms + r_symndx;
4326 sec = local_sections[r_symndx];
8517fae7
AM		 4327 msec = sec;
4328 value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
3765b1be 4329
cc03ec80
RH		 4330 /* If this is a tp-relative relocation against sym 0,
4331 this is hackery from relax_section. Force the value to
4332 be the tls base. */
4333 if (r_symndx == 0
4334 && (r_type == R_ALPHA_TLSLDM
4335 || r_type == R_ALPHA_GOTTPREL
4336 || r_type == R_ALPHA_TPREL64
4337 || r_type == R_ALPHA_TPRELHI
4338 || r_type == R_ALPHA_TPRELLO
4339 || r_type == R_ALPHA_TPREL16))
4340 value = tp_base;
4341
4a67a098
RH		 4342 if (local_got_entries)
4343 gotent = local_got_entries[r_symndx];
4344 else
4345 gotent = NULL;
3765b1be
RH		 4346
4347 /* Need to adjust local GOT entries' addends for SEC_MERGE
4348 unless it has been done already. */
4349 if ((sec->flags & SEC_MERGE)
048d873d 4350 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
68bfbfcc 4351 && sec->sec_info_type == ELF_INFO_TYPE_MERGE
048d873d
RH		 4352 && gotent
4353 && !gotent->reloc_xlated)
3765b1be
RH		 4354 {
4355 struct alpha_elf_got_entry *ent;
3765b1be
RH		 4356
4357 for (ent = gotent; ent; ent = ent->next)
4358 {
4359 ent->reloc_xlated = 1;
4360 if (ent->use_count == 0)
4361 continue;
4362 msec = sec;
4363 ent->addend =
4364 _bfd_merged_section_offset (output_bfd, &msec,
4365 elf_section_data (sec)->
4366 sec_info,
753731ee 4367 sym->st_value + ent->addend);
3765b1be
RH		 4368 ent->addend -= sym->st_value;
4369 ent->addend += msec->output_section->vma
4370 + msec->output_offset
4371 - sec->output_section->vma
4372 - sec->output_offset;
4373 }
4374 }
4375
b34976b6 4376 dynamic_symbol_p = FALSE;
252b5132
RH		 4377 }
4378 else
4379 {
560e09e9
NC		 4380 bfd_boolean warned;
4381 bfd_boolean unresolved_reloc;
4382 struct elf_link_hash_entry *hh;
b2a8e766
AM		 4383 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
4384
4385 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4386 r_symndx, symtab_hdr, sym_hashes,
4387 hh, sec, value,
4388 unresolved_reloc, warned);
560e09e9
NC		 4389
4390 if (warned)
4391 continue;
252b5132 4392
560e09e9
NC		 4393 if (value == 0
4394 && ! unresolved_reloc
4395 && hh->root.type == bfd_link_hash_undefweak)
b34976b6 4396 undef_weak_ref = TRUE;
3765b1be 4397
560e09e9 4398 h = (struct alpha_elf_link_hash_entry *) hh;
3765b1be
RH		 4399 dynamic_symbol_p = alpha_elf_dynamic_symbol_p (&h->root, info);
4400 gotent = h->got_entries;
252b5132 4401 }
3765b1be 4402
252b5132 4403 addend = rel->r_addend;
3765b1be
RH		 4404 value += addend;
4405
4406 /* Search for the proper got entry. */
4407 for (; gotent ; gotent = gotent->next)
4408 if (gotent->gotobj == gotobj
4409 && gotent->reloc_type == r_type
4410 && gotent->addend == addend)
4411 break;
252b5132
RH		 4412
4413 switch (r_type)
4414 {
4415 case R_ALPHA_GPDISP:
4416 {
4417 bfd_byte *p_ldah, *p_lda;
4418
4419 BFD_ASSERT(gp != 0);
4420
3765b1be
RH		 4421 value = (input_section->output_section->vma
4422 + input_section->output_offset
4423 + rel->r_offset);
252b5132 4424
3765b1be 4425 p_ldah = contents + rel->r_offset;
252b5132
RH		 4426 p_lda = p_ldah + rel->r_addend;
4427
3765b1be 4428 r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - value,
252b5132
RH		 4429 p_ldah, p_lda);
4430 }
4431 break;
4432
252b5132 4433 case R_ALPHA_LITERAL:
3765b1be
RH		 4434 BFD_ASSERT(sgot != NULL);
4435 BFD_ASSERT(gp != 0);
4436 BFD_ASSERT(gotent != NULL);
4437 BFD_ASSERT(gotent->use_count >= 1);
f7460f5f 4438
3765b1be
RH		 4439 if (!gotent->reloc_done)
4440 {
4441 gotent->reloc_done = 1;
252b5132 4442
3765b1be
RH		 4443 bfd_put_64 (output_bfd, value,
4444 sgot->contents + gotent->got_offset);
252b5132 4445
3765b1be
RH		 4446 /* If the symbol has been forced local, output a
4447 RELATIVE reloc, otherwise it will be handled in
4448 finish_dynamic_symbol. */
4449 if (info->shared && !dynamic_symbol_p)
1bbc9cec
RH		 4450 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4451 gotent->got_offset, 0,
4452 R_ALPHA_RELATIVE, value);
3765b1be 4453 }
252b5132 4454
3765b1be
RH		 4455 value = (sgot->output_section->vma
4456 + sgot->output_offset
4457 + gotent->got_offset);
4458 value -= gp;
252b5132
RH		 4459 goto default_reloc;
4460
4461 case R_ALPHA_GPREL32:
ec1659c8
RH		 4462 /* If the target section was a removed linkonce section,
4463 r_symndx will be zero. In this case, assume that the
4464 switch will not be used, so don't fill it in. If we
4465 do nothing here, we'll get relocation truncated messages,
4466 due to the placement of the application above 4GB. */
4467 if (r_symndx == 0)
4468 {
4469 r = bfd_reloc_ok;
4470 break;
4471 }
4472 /* FALLTHRU */
4473
4474 case R_ALPHA_GPREL16:
252b5132 4475 case R_ALPHA_GPRELLOW:
3765b1be 4476 if (dynamic_symbol_p)
f16fbd61
RH		 4477 {
4478 (*_bfd_error_handler)
d003868e
AM		 4479 (_("%B: gp-relative relocation against dynamic symbol %s"),
4480 input_bfd, h->root.root.root.string);
b34976b6 4481 ret_val = FALSE;
f16fbd61 4482 }
252b5132 4483 BFD_ASSERT(gp != 0);
3765b1be 4484 value -= gp;
252b5132
RH		 4485 goto default_reloc;
4486
4487 case R_ALPHA_GPRELHIGH:
3765b1be 4488 if (dynamic_symbol_p)
f16fbd61
RH		 4489 {
4490 (*_bfd_error_handler)
d003868e
AM		 4491 (_("%B: gp-relative relocation against dynamic symbol %s"),
4492 input_bfd, h->root.root.root.string);
b34976b6 4493 ret_val = FALSE;
f16fbd61 4494 }
252b5132 4495 BFD_ASSERT(gp != 0);
3765b1be
RH		 4496 value -= gp;
4497 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
252b5132
RH		 4498 goto default_reloc;
4499
252b5132 4500 case R_ALPHA_HINT:
f94952df
RH		 4501 /* A call to a dynamic symbol is definitely out of range of
4502 the 16-bit displacement. Don't bother writing anything. */
3765b1be 4503 if (dynamic_symbol_p)
f94952df
RH		 4504 {
4505 r = bfd_reloc_ok;
4506 break;
4507 }
3765b1be
RH		 4508 /* The regular PC-relative stuff measures from the start of
4509 the instruction rather than the end. */
4510 value -= 4;
4511 goto default_reloc;
f94952df
RH		 4512
4513 case R_ALPHA_BRADDR:
3765b1be
RH		 4514 if (dynamic_symbol_p)
4515 {
4516 (*_bfd_error_handler)
d003868e
AM		 4517 (_("%B: pc-relative relocation against dynamic symbol %s"),
4518 input_bfd, h->root.root.root.string);
b34976b6 4519 ret_val = FALSE;
3765b1be 4520 }
252b5132
RH		 4521 /* The regular PC-relative stuff measures from the start of
4522 the instruction rather than the end. */
3765b1be 4523 value -= 4;
252b5132
RH		 4524 goto default_reloc;
4525
7793f4d0
RH		 4526 case R_ALPHA_BRSGP:
4527 {
4528 int other;
4529 const char *name;
4530
4531 /* The regular PC-relative stuff measures from the start of
4532 the instruction rather than the end. */
3765b1be 4533 value -= 4;
7793f4d0 4534
ccf00ab6
RH		 4535 /* The source and destination gp must be the same. Note that
4536 the source will always have an assigned gp, since we forced
4537 one in check_relocs, but that the destination may not, as
cedb70c5 4538 it might not have had any relocations at all. Also take
ccf00ab6
RH		 4539 care not to crash if H is an undefined symbol. */
4540 if (h != NULL && sec != NULL
4541 && alpha_elf_tdata (sec->owner)->gotobj
7793f4d0
RH		 4542 && gotobj != alpha_elf_tdata (sec->owner)->gotobj)
4543 {
7793f4d0 4544 (*_bfd_error_handler)
d003868e
AM		 4545 (_("%B: change in gp: BRSGP %s"),
4546 input_bfd, h->root.root.root.string);
b34976b6 4547 ret_val = FALSE;
7793f4d0
RH		 4548 }
4549
4550 /* The symbol should be marked either NOPV or STD_GPLOAD. */
4551 if (h != NULL)
4552 other = h->root.other;
4553 else
4554 other = sym->st_other;
4555 switch (other & STO_ALPHA_STD_GPLOAD)
4556 {
4557 case STO_ALPHA_NOPV:
4558 break;
4559 case STO_ALPHA_STD_GPLOAD:
64e04ecd 4560 value += 8;
7793f4d0
RH		 4561 break;
4562 default:
4563 if (h != NULL)
4564 name = h->root.root.root.string;
4565 else
4566 {
4567 name = (bfd_elf_string_from_elf_section
4568 (input_bfd, symtab_hdr->sh_link, sym->st_name));
4569 if (name == NULL)
4570 name = _("<unknown>");
4571 else if (name[0] == 0)
4572 name = bfd_section_name (input_bfd, sec);
4573 }
4574 (*_bfd_error_handler)
d003868e
AM		 4575 (_("%B: !samegp reloc against symbol without .prologue: %s"),
4576 input_bfd, name);
b34976b6 4577 ret_val = FALSE;
7793f4d0
RH		 4578 break;
4579 }
4580
4581 goto default_reloc;
4582 }
4583
252b5132
RH		 4584 case R_ALPHA_REFLONG:
4585 case R_ALPHA_REFQUAD:
3765b1be
RH		 4586 case R_ALPHA_DTPREL64:
4587 case R_ALPHA_TPREL64:
252b5132 4588 {
1bbc9cec
RH		 4589 long dynindx, dyntype = r_type;
4590 bfd_vma dynaddend;
252b5132
RH		 4591
4592 /* Careful here to remember RELATIVE relocations for global
4593 variables for symbolic shared objects. */
4594
3765b1be 4595 if (dynamic_symbol_p)
252b5132
RH		 4596 {
4597 BFD_ASSERT(h->root.dynindx != -1);
1bbc9cec
RH		 4598 dynindx = h->root.dynindx;
4599 dynaddend = addend;
3765b1be
RH		 4600 addend = 0, value = 0;
4601 }
4602 else if (r_type == R_ALPHA_DTPREL64)
4603 {
e1918d23 4604 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be
RH		 4605 value -= dtp_base;
4606 goto default_reloc;
4607 }
4608 else if (r_type == R_ALPHA_TPREL64)
4609 {
e1918d23 4610 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
1bbc9cec
RH		 4611 if (!info->shared)
4612 {
4613 value -= tp_base;
4614 goto default_reloc;
4615 }
4616 dynindx = 0;
4617 dynaddend = value - dtp_base;
252b5132 4618 }
ec338859
AM		 4619 else if (info->shared
4620 && r_symndx != 0
4621 && (input_section->flags & SEC_ALLOC))
252b5132 4622 {
3765b1be
RH		 4623 if (r_type == R_ALPHA_REFLONG)
4624 {
4625 (*_bfd_error_handler)
d003868e
AM		 4626 (_("%B: unhandled dynamic relocation against %s"),
4627 input_bfd,
3765b1be 4628 h->root.root.root.string);
b34976b6 4629 ret_val = FALSE;
3765b1be 4630 }
1bbc9cec
RH		 4631 dynindx = 0;
4632 dyntype = R_ALPHA_RELATIVE;
4633 dynaddend = value;
252b5132
RH		 4634 }
4635 else
4636 goto default_reloc;
4637
1bbc9cec
RH		 4638 elf64_alpha_emit_dynrel (output_bfd, info, input_section,
4639 srel, rel->r_offset, dynindx,
4640 dyntype, dynaddend);
252b5132
RH		 4641 }
4642 goto default_reloc;
4643
3765b1be 4644 case R_ALPHA_SREL16:
84de6048
RH		 4645 case R_ALPHA_SREL32:
4646 case R_ALPHA_SREL64:
3765b1be
RH		 4647 if (dynamic_symbol_p)
4648 {
4649 (*_bfd_error_handler)
d003868e
AM		 4650 (_("%B: pc-relative relocation against dynamic symbol %s"),
4651 input_bfd, h->root.root.root.string);
b34976b6 4652 ret_val = FALSE;
3765b1be
RH		 4653 }
4654
84de6048
RH		 4655 /* ??? .eh_frame references to discarded sections will be smashed
4656 to relocations against SHN_UNDEF. The .eh_frame format allows
4657 NULL to be encoded as 0 in any format, so this works here. */
4658 if (r_symndx == 0)
4659 howto = (elf64_alpha_howto_table
4660 + (r_type - R_ALPHA_SREL32 + R_ALPHA_REFLONG));
4661 goto default_reloc;
4662
3765b1be
RH		 4663 case R_ALPHA_TLSLDM:
4664 /* Ignore the symbol for the relocation. The result is always
4665 the current module. */
4666 dynamic_symbol_p = 0;
4667 /* FALLTHRU */
4668
4669 case R_ALPHA_TLSGD:
4670 if (!gotent->reloc_done)
4671 {
4672 gotent->reloc_done = 1;
4673
4674 /* Note that the module index for the main program is 1. */
4675 bfd_put_64 (output_bfd, !info->shared && !dynamic_symbol_p,
4676 sgot->contents + gotent->got_offset);
4677
4678 /* If the symbol has been forced local, output a
4679 DTPMOD64 reloc, otherwise it will be handled in
4680 finish_dynamic_symbol. */
4681 if (info->shared && !dynamic_symbol_p)
1bbc9cec
RH		 4682 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4683 gotent->got_offset, 0,
4684 R_ALPHA_DTPMOD64, 0);
3765b1be
RH		 4685
4686 if (dynamic_symbol_p || r_type == R_ALPHA_TLSLDM)
4687 value = 0;
4688 else
4689 {
e1918d23 4690 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be
RH		 4691 value -= dtp_base;
4692 }
4693 bfd_put_64 (output_bfd, value,
4694 sgot->contents + gotent->got_offset + 8);
4695 }
4696
4697 value = (sgot->output_section->vma
4698 + sgot->output_offset
4699 + gotent->got_offset);
4700 value -= gp;
4701 goto default_reloc;
4702
4703 case R_ALPHA_DTPRELHI:
4704 case R_ALPHA_DTPRELLO:
4705 case R_ALPHA_DTPREL16:
4706 if (dynamic_symbol_p)
4707 {
4708 (*_bfd_error_handler)
d003868e
AM		 4709 (_("%B: dtp-relative relocation against dynamic symbol %s"),
4710 input_bfd, h->root.root.root.string);
b34976b6 4711 ret_val = FALSE;
3765b1be 4712 }
e1918d23 4713 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be 4714 value -= dtp_base;
9e756d64
RH		 4715 if (r_type == R_ALPHA_DTPRELHI)
4716 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
3765b1be
RH		 4717 goto default_reloc;
4718
4719 case R_ALPHA_TPRELHI:
4720 case R_ALPHA_TPRELLO:
4721 case R_ALPHA_TPREL16:
9e756d64
RH		 4722 if (info->shared)
4723 {
4724 (*_bfd_error_handler)
d003868e
AM		 4725 (_("%B: TLS local exec code cannot be linked into shared objects"),
4726 input_bfd);
b34976b6 4727 ret_val = FALSE;
9e756d64
RH		 4728 }
4729 else if (dynamic_symbol_p)
3765b1be
RH		 4730 {
4731 (*_bfd_error_handler)
d003868e
AM		 4732 (_("%B: tp-relative relocation against dynamic symbol %s"),
4733 input_bfd, h->root.root.root.string);
b34976b6 4734 ret_val = FALSE;
3765b1be 4735 }
e1918d23 4736 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3765b1be 4737 value -= tp_base;
9e756d64
RH		 4738 if (r_type == R_ALPHA_TPRELHI)
4739 value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
3765b1be
RH		 4740 goto default_reloc;
4741
4742 case R_ALPHA_GOTDTPREL:
4743 case R_ALPHA_GOTTPREL:
4744 BFD_ASSERT(sgot != NULL);
4745 BFD_ASSERT(gp != 0);
4746 BFD_ASSERT(gotent != NULL);
4747 BFD_ASSERT(gotent->use_count >= 1);
4748
4749 if (!gotent->reloc_done)
4750 {
4751 gotent->reloc_done = 1;
4752
4753 if (dynamic_symbol_p)
4754 value = 0;
4755 else
4756 {
e1918d23 4757 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
1bbc9cec
RH		 4758 if (r_type == R_ALPHA_GOTDTPREL)
4759 value -= dtp_base;
4760 else if (!info->shared)
4761 value -= tp_base;
4762 else
4763 {
4764 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
4765 gotent->got_offset, 0,
4766 R_ALPHA_TPREL64,
4767 value - dtp_base);
4768 value = 0;
4769 }
3765b1be
RH		 4770 }
4771 bfd_put_64 (output_bfd, value,
4772 sgot->contents + gotent->got_offset);
4773 }
4774
4775 value = (sgot->output_section->vma
4776 + sgot->output_offset
4777 + gotent->got_offset);
4778 value -= gp;
4779 goto default_reloc;
4780
252b5132
RH		 4781 default:
4782 default_reloc:
4783 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3765b1be 4784 contents, rel->r_offset, value, 0);
252b5132
RH		 4785 break;
4786 }
4787
4788 switch (r)
4789 {
4790 case bfd_reloc_ok:
4791 break;
4792
4793 case bfd_reloc_overflow:
4794 {
4795 const char *name;
4796
ed4de5e2
JJ		 4797 /* Don't warn if the overflow is due to pc relative reloc
4798 against discarded section. Section optimization code should
4799 handle it. */
4800
4801 if (r_symndx < symtab_hdr->sh_info
4802 && sec != NULL && howto->pc_relative
4803 && elf_discarded_section (sec))
4804 break;
4805
252b5132 4806 if (h != NULL)
dfeffb9f 4807 name = NULL;
252b5132
RH		 4808 else
4809 {
4810 name = (bfd_elf_string_from_elf_section
4811 (input_bfd, symtab_hdr->sh_link, sym->st_name));
4812 if (name == NULL)
b34976b6 4813 return FALSE;
252b5132
RH		 4814 if (*name == '\0')
4815 name = bfd_section_name (input_bfd, sec);
4816 }
4817 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 4818 (info, (h ? &h->root.root : NULL), name, howto->name,
4819 (bfd_vma) 0, input_bfd, input_section,
4820 rel->r_offset)))
b34976b6 4821 ret_val = FALSE;
252b5132
RH		 4822 }
4823 break;
4824
4825 default:
4826 case bfd_reloc_outofrange:
4827 abort ();
4828 }
4829 }
4830
f16fbd61 4831 return ret_val;
252b5132
RH		 4832}
4833
4834/* Finish up dynamic symbol handling. We set the contents of various
4835 dynamic sections here. */
4836
b34976b6 4837static bfd_boolean
252b5132
RH		 4838elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym)
4839 bfd *output_bfd;
4840 struct bfd_link_info *info;
4841 struct elf_link_hash_entry *h;
4842 Elf_Internal_Sym *sym;
4843{
4844 bfd *dynobj = elf_hash_table(info)->dynobj;
4845
4846 if (h->plt.offset != MINUS_ONE)
4847 {
4848 /* Fill in the .plt entry for this symbol. */
4849 asection *splt, *sgot, *srel;
4850 Elf_Internal_Rela outrel;
947216bf 4851 bfd_byte *loc;
252b5132
RH		 4852 bfd_vma got_addr, plt_addr;
4853 bfd_vma plt_index;
4854 struct alpha_elf_got_entry *gotent;
4855
4856 BFD_ASSERT (h->dynindx != -1);
4857
4858 /* The first .got entry will be updated by the .plt with the
4859 address of the target function. */
4860 gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
4861 BFD_ASSERT (gotent && gotent->addend == 0);
4862
4863 splt = bfd_get_section_by_name (dynobj, ".plt");
4864 BFD_ASSERT (splt != NULL);
4865 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
4866 BFD_ASSERT (srel != NULL);
4867 sgot = alpha_elf_tdata (gotent->gotobj)->got;
4868 BFD_ASSERT (sgot != NULL);
4869
4870 got_addr = (sgot->output_section->vma
4871 + sgot->output_offset
4872 + gotent->got_offset);
4873 plt_addr = (splt->output_section->vma
4874 + splt->output_offset
4875 + h->plt.offset);
4876
4877 plt_index = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
4878
4879 /* Fill in the entry in the procedure linkage table. */
4880 {
dc810e39 4881 bfd_vma insn1, insn2, insn3;
252b5132
RH		 4882
4883 insn1 = PLT_ENTRY_WORD1 | ((-(h->plt.offset + 4) >> 2) & 0x1fffff);
4884 insn2 = PLT_ENTRY_WORD2;
4885 insn3 = PLT_ENTRY_WORD3;
4886
4887 bfd_put_32 (output_bfd, insn1, splt->contents + h->plt.offset);
4888 bfd_put_32 (output_bfd, insn2, splt->contents + h->plt.offset + 4);
4889 bfd_put_32 (output_bfd, insn3, splt->contents + h->plt.offset + 8);
4890 }
4891
4892 /* Fill in the entry in the .rela.plt section. */
4893 outrel.r_offset = got_addr;
4894 outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT);
4895 outrel.r_addend = 0;
4896
947216bf
AM		 4897 loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
4898 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 4899
f5385ebf 4900 if (!h->def_regular)
252b5132
RH		 4901 {
4902 /* Mark the symbol as undefined, rather than as defined in the
4903 .plt section. Leave the value alone. */
4904 sym->st_shndx = SHN_UNDEF;
4905 }
4906
4907 /* Fill in the entries in the .got. */
4908 bfd_put_64 (output_bfd, plt_addr, sgot->contents + gotent->got_offset);
4909
4910 /* Subsequent .got entries will continue to bounce through the .plt. */
4911 if (gotent->next)
4912 {
4913 srel = bfd_get_section_by_name (dynobj, ".rela.got");
4914 BFD_ASSERT (! info->shared || srel != NULL);
4915
4916 gotent = gotent->next;
4917 do
4918 {
4919 sgot = alpha_elf_tdata(gotent->gotobj)->got;
4920 BFD_ASSERT(sgot != NULL);
4921 BFD_ASSERT(gotent->addend == 0);
4922
4923 bfd_put_64 (output_bfd, plt_addr,
4924 sgot->contents + gotent->got_offset);
4925
4926 if (info->shared)
1bbc9cec
RH		 4927 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4928 gotent->got_offset, 0,
4929 R_ALPHA_RELATIVE, plt_addr);
252b5132
RH		 4930
4931 gotent = gotent->next;
4932 }
4933 while (gotent != NULL);
4934 }
4935 }
4936 else if (alpha_elf_dynamic_symbol_p (h, info))
4937 {
4938 /* Fill in the dynamic relocations for this symbol's .got entries. */
4939 asection *srel;
252b5132
RH		 4940 struct alpha_elf_got_entry *gotent;
4941
4942 srel = bfd_get_section_by_name (dynobj, ".rela.got");
4943 BFD_ASSERT (srel != NULL);
4944
252b5132
RH		 4945 for (gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
4946 gotent != NULL;
4947 gotent = gotent->next)
4948 {
f44f99a5 4949 asection *sgot;
1bbc9cec 4950 long r_type;
3765b1be 4951
f44f99a5
RH		 4952 if (gotent->use_count == 0)
4953 continue;
4954
4955 sgot = alpha_elf_tdata (gotent->gotobj)->got;
3765b1be
RH		 4956
4957 r_type = gotent->reloc_type;
4958 switch (r_type)
4959 {
4960 case R_ALPHA_LITERAL:
4961 r_type = R_ALPHA_GLOB_DAT;
4962 break;
4963 case R_ALPHA_TLSGD:
4964 r_type = R_ALPHA_DTPMOD64;
4965 break;
4966 case R_ALPHA_GOTDTPREL:
4967 r_type = R_ALPHA_DTPREL64;
4968 break;
4969 case R_ALPHA_GOTTPREL:
4970 r_type = R_ALPHA_TPREL64;
4971 break;
4972 case R_ALPHA_TLSLDM:
4973 default:
4974 abort ();
4975 }
4976
1bbc9cec
RH		 4977 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4978 gotent->got_offset, h->dynindx,
4979 r_type, gotent->addend);
3765b1be
RH		 4980
4981 if (gotent->reloc_type == R_ALPHA_TLSGD)
1bbc9cec
RH		 4982 elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
4983 gotent->got_offset + 8, h->dynindx,
4984 R_ALPHA_DTPREL64, gotent->addend);
252b5132
RH		 4985 }
4986 }
4987
4988 /* Mark some specially defined symbols as absolute. */
4989 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4990 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4991 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4992 sym->st_shndx = SHN_ABS;
4993
b34976b6 4994 return TRUE;
252b5132
RH		 4995}
4996
4997/* Finish up the dynamic sections. */
4998
b34976b6 4999static bfd_boolean
252b5132
RH		 5000elf64_alpha_finish_dynamic_sections (output_bfd, info)
5001 bfd *output_bfd;
5002 struct bfd_link_info *info;
5003{
5004 bfd *dynobj;
5005 asection *sdyn;
5006
5007 dynobj = elf_hash_table (info)->dynobj;
5008 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5009
5010 if (elf_hash_table (info)->dynamic_sections_created)
5011 {
5012 asection *splt;
5013 Elf64_External_Dyn *dyncon, *dynconend;
5014
5015 splt = bfd_get_section_by_name (dynobj, ".plt");
5016 BFD_ASSERT (splt != NULL && sdyn != NULL);
5017
5018 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 5019 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
252b5132
RH		 5020 for (; dyncon < dynconend; dyncon++)
5021 {
5022 Elf_Internal_Dyn dyn;
5023 const char *name;
5024 asection *s;
5025
5026 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
5027
5028 switch (dyn.d_tag)
5029 {
5030 case DT_PLTGOT:
5031 name = ".plt";
5032 goto get_vma;
5033 case DT_PLTRELSZ:
5034 name = ".rela.plt";
5035 goto get_size;
5036 case DT_JMPREL:
5037 name = ".rela.plt";
5038 goto get_vma;
5039
5040 case DT_RELASZ:
5041 /* My interpretation of the TIS v1.1 ELF document indicates
5042 that RELASZ should not include JMPREL. This is not what
5043 the rest of the BFD does. It is, however, what the
5044 glibc ld.so wants. Do this fixup here until we found
5045 out who is right. */
5046 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
5047 if (s)
eea6121a 5048 dyn.d_un.d_val -= s->size;
252b5132
RH		 5049 break;
5050
5051 get_vma:
5052 s = bfd_get_section_by_name (output_bfd, name);
5053 dyn.d_un.d_ptr = (s ? s->vma : 0);
5054 break;
5055
5056 get_size:
5057 s = bfd_get_section_by_name (output_bfd, name);
eea6121a 5058 dyn.d_un.d_val = s->size;
252b5132
RH		 5059 break;
5060 }
5061
5062 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5063 }
5064
ae9a127f 5065 /* Initialize the PLT0 entry. */
eea6121a 5066 if (splt->size > 0)
252b5132
RH		 5067 {
5068 bfd_put_32 (output_bfd, PLT_HEADER_WORD1, splt->contents);
5069 bfd_put_32 (output_bfd, PLT_HEADER_WORD2, splt->contents + 4);
5070 bfd_put_32 (output_bfd, PLT_HEADER_WORD3, splt->contents + 8);
5071 bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12);
5072
5073 /* The next two words will be filled in by ld.so */
dc810e39
AM		 5074 bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 16);
5075 bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 24);
252b5132 5076
eecdbe52 5077 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0;
252b5132
RH		 5078 }
5079 }
5080
b34976b6 5081 return TRUE;
252b5132
RH		 5082}
5083
96e2734b
RH		 5084/* We need to use a special link routine to handle the .mdebug section.
5085 We need to merge all instances of these sections together, not write
5086 them all out sequentially. */
252b5132 5087
b34976b6 5088static bfd_boolean
252b5132
RH		 5089elf64_alpha_final_link (abfd, info)
5090 bfd *abfd;
5091 struct bfd_link_info *info;
5092{
5093 asection *o;
5094 struct bfd_link_order *p;
96e2734b 5095 asection *mdebug_sec;
252b5132
RH		 5096 struct ecoff_debug_info debug;
5097 const struct ecoff_debug_swap *swap
5098 = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
5099 HDRR *symhdr = &debug.symbolic_header;
5100 PTR mdebug_handle = NULL;
5101
96e2734b 5102 /* Go through the sections and collect the mdebug information. */
252b5132 5103 mdebug_sec = NULL;
252b5132
RH		 5104 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
5105 {
252b5132
RH		 5106 if (strcmp (o->name, ".mdebug") == 0)
5107 {
5108 struct extsym_info einfo;
5109
5110 /* We have found the .mdebug section in the output file.
5111 Look through all the link_orders comprising it and merge
5112 the information together. */
5113 symhdr->magic = swap->sym_magic;
5114 /* FIXME: What should the version stamp be? */
5115 symhdr->vstamp = 0;
5116 symhdr->ilineMax = 0;
5117 symhdr->cbLine = 0;
5118 symhdr->idnMax = 0;
5119 symhdr->ipdMax = 0;
5120 symhdr->isymMax = 0;
5121 symhdr->ioptMax = 0;
5122 symhdr->iauxMax = 0;
5123 symhdr->issMax = 0;
5124 symhdr->issExtMax = 0;
5125 symhdr->ifdMax = 0;
5126 symhdr->crfd = 0;
5127 symhdr->iextMax = 0;
5128
5129 /* We accumulate the debugging information itself in the
5130 debug_info structure. */
5131 debug.line = NULL;
5132 debug.external_dnr = NULL;
5133 debug.external_pdr = NULL;
5134 debug.external_sym = NULL;
5135 debug.external_opt = NULL;
5136 debug.external_aux = NULL;
5137 debug.ss = NULL;
5138 debug.ssext = debug.ssext_end = NULL;
5139 debug.external_fdr = NULL;
5140 debug.external_rfd = NULL;
5141 debug.external_ext = debug.external_ext_end = NULL;
5142
5143 mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
5144 if (mdebug_handle == (PTR) NULL)
b34976b6 5145 return FALSE;
252b5132
RH		 5146
5147 if (1)
5148 {
5149 asection *s;
5150 EXTR esym;
52b9d213 5151 bfd_vma last = 0;
252b5132
RH		 5152 unsigned int i;
5153 static const char * const name[] =
5154 {
5155 ".text", ".init", ".fini", ".data",
5156 ".rodata", ".sdata", ".sbss", ".bss"
5157 };
5158 static const int sc[] = { scText, scInit, scFini, scData,
5159 scRData, scSData, scSBss, scBss };
5160
5161 esym.jmptbl = 0;
5162 esym.cobol_main = 0;
5163 esym.weakext = 0;
5164 esym.reserved = 0;
5165 esym.ifd = ifdNil;
5166 esym.asym.iss = issNil;
5167 esym.asym.st = stLocal;
5168 esym.asym.reserved = 0;
5169 esym.asym.index = indexNil;
5170 for (i = 0; i < 8; i++)
5171 {
5172 esym.asym.sc = sc[i];
5173 s = bfd_get_section_by_name (abfd, name[i]);
5174 if (s != NULL)
5175 {
5176 esym.asym.value = s->vma;
eea6121a 5177 last = s->vma + s->size;
252b5132
RH		 5178 }
5179 else
5180 esym.asym.value = last;
5181
5182 if (! bfd_ecoff_debug_one_external (abfd, &debug, swap,
5183 name[i], &esym))
b34976b6 5184 return FALSE;
252b5132
RH		 5185 }
5186 }
5187
5188 for (p = o->link_order_head;
5189 p != (struct bfd_link_order *) NULL;
5190 p = p->next)
5191 {
5192 asection *input_section;
5193 bfd *input_bfd;
5194 const struct ecoff_debug_swap *input_swap;
5195 struct ecoff_debug_info input_debug;
5196 char *eraw_src;
5197 char *eraw_end;
5198
5199 if (p->type != bfd_indirect_link_order)
5200 {
fd96f80f 5201 if (p->type == bfd_data_link_order)
252b5132
RH		 5202 continue;
5203 abort ();
5204 }
5205
5206 input_section = p->u.indirect.section;
5207 input_bfd = input_section->owner;
5208
5209 if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
5210 || (get_elf_backend_data (input_bfd)
5211 ->elf_backend_ecoff_debug_swap) == NULL)
5212 {
5213 /* I don't know what a non ALPHA ELF bfd would be
5214 doing with a .mdebug section, but I don't really
5215 want to deal with it. */
5216 continue;
5217 }
5218
5219 input_swap = (get_elf_backend_data (input_bfd)
5220 ->elf_backend_ecoff_debug_swap);
5221
eea6121a 5222 BFD_ASSERT (p->size == input_section->size);
252b5132
RH		 5223
5224 /* The ECOFF linking code expects that we have already
5225 read in the debugging information and set up an
5226 ecoff_debug_info structure, so we do that now. */
5227 if (!elf64_alpha_read_ecoff_info (input_bfd, input_section,
5228 &input_debug))
b34976b6 5229 return FALSE;
252b5132
RH		 5230
5231 if (! (bfd_ecoff_debug_accumulate
5232 (mdebug_handle, abfd, &debug, swap, input_bfd,
5233 &input_debug, input_swap, info)))
b34976b6 5234 return FALSE;
252b5132
RH		 5235
5236 /* Loop through the external symbols. For each one with
5237 interesting information, try to find the symbol in
5238 the linker global hash table and save the information
5239 for the output external symbols. */
5240 eraw_src = input_debug.external_ext;
5241 eraw_end = (eraw_src
5242 + (input_debug.symbolic_header.iextMax
5243 * input_swap->external_ext_size));
5244 for (;
5245 eraw_src < eraw_end;
5246 eraw_src += input_swap->external_ext_size)
5247 {
5248 EXTR ext;
5249 const char *name;
5250 struct alpha_elf_link_hash_entry *h;
5251
5252 (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
5253 if (ext.asym.sc == scNil
5254 || ext.asym.sc == scUndefined
5255 || ext.asym.sc == scSUndefined)
5256 continue;
5257
5258 name = input_debug.ssext + ext.asym.iss;
5259 h = alpha_elf_link_hash_lookup (alpha_elf_hash_table (info),
b34976b6 5260 name, FALSE, FALSE, TRUE);
252b5132
RH		 5261 if (h == NULL || h->esym.ifd != -2)
5262 continue;
5263
5264 if (ext.ifd != -1)
5265 {
5266 BFD_ASSERT (ext.ifd
5267 < input_debug.symbolic_header.ifdMax);
5268 ext.ifd = input_debug.ifdmap[ext.ifd];
5269 }
5270
5271 h->esym = ext;
5272 }
5273
5274 /* Free up the information we just read. */
5275 free (input_debug.line);
5276 free (input_debug.external_dnr);
5277 free (input_debug.external_pdr);
5278 free (input_debug.external_sym);
5279 free (input_debug.external_opt);
5280 free (input_debug.external_aux);
5281 free (input_debug.ss);
5282 free (input_debug.ssext);
5283 free (input_debug.external_fdr);
5284 free (input_debug.external_rfd);
5285 free (input_debug.external_ext);
5286
5287 /* Hack: reset the SEC_HAS_CONTENTS flag so that
5288 elf_link_input_bfd ignores this section. */
5289 input_section->flags &=~ SEC_HAS_CONTENTS;
5290 }
5291
252b5132
RH		 5292 /* Build the external symbol information. */
5293 einfo.abfd = abfd;
5294 einfo.info = info;
5295 einfo.debug = &debug;
5296 einfo.swap = swap;
b34976b6 5297 einfo.failed = FALSE;
252b5132
RH		 5298 elf_link_hash_traverse (elf_hash_table (info),
5299 elf64_alpha_output_extsym,
5300 (PTR) &einfo);
5301 if (einfo.failed)
b34976b6 5302 return FALSE;
252b5132
RH		 5303
5304 /* Set the size of the .mdebug section. */
eea6121a 5305 o->size = bfd_ecoff_debug_size (abfd, &debug, swap);
252b5132
RH		 5306
5307 /* Skip this section later on (I don't think this currently
5308 matters, but someday it might). */
5309 o->link_order_head = (struct bfd_link_order *) NULL;
5310
5311 mdebug_sec = o;
5312 }
252b5132
RH		 5313 }
5314
5315 /* Invoke the regular ELF backend linker to do all the work. */
c152c796 5316 if (! bfd_elf_final_link (abfd, info))
b34976b6 5317 return FALSE;
252b5132
RH		 5318
5319 /* Now write out the computed sections. */
5320
5321 /* The .got subsections... */
5322 {
5323 bfd *i, *dynobj = elf_hash_table(info)->dynobj;
5324 for (i = alpha_elf_hash_table(info)->got_list;
5325 i != NULL;
5326 i = alpha_elf_tdata(i)->got_link_next)
5327 {
5328 asection *sgot;
5329
5330 /* elf_bfd_final_link already did everything in dynobj. */
5331 if (i == dynobj)
5332 continue;
5333
5334 sgot = alpha_elf_tdata(i)->got;
5335 if (! bfd_set_section_contents (abfd, sgot->output_section,
dc810e39
AM		 5336 sgot->contents,
5337 (file_ptr) sgot->output_offset,
eea6121a 5338 sgot->size))
b34976b6 5339 return FALSE;
252b5132
RH		 5340 }
5341 }
5342
252b5132
RH		 5343 if (mdebug_sec != (asection *) NULL)
5344 {
5345 BFD_ASSERT (abfd->output_has_begun);
5346 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
5347 swap, info,
5348 mdebug_sec->filepos))
b34976b6 5349 return FALSE;
252b5132
RH		 5350
5351 bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
5352 }
5353
b34976b6 5354 return TRUE;
252b5132 5355}
fcfbdf31
JJ		 5356
5357static enum elf_reloc_type_class
f51e552e
AM		 5358elf64_alpha_reloc_type_class (rela)
5359 const Elf_Internal_Rela *rela;
fcfbdf31 5360{
f51e552e 5361 switch ((int) ELF64_R_TYPE (rela->r_info))
fcfbdf31
JJ		 5362 {
5363 case R_ALPHA_RELATIVE:
5364 return reloc_class_relative;
5365 case R_ALPHA_JMP_SLOT:
5366 return reloc_class_plt;
5367 case R_ALPHA_COPY:
5368 return reloc_class_copy;
5369 default:
5370 return reloc_class_normal;
5371 }
5372}
252b5132 5373\f
2f89ff8d
L		 5374static struct bfd_elf_special_section const elf64_alpha_special_sections[]=
5375{
7dcb9820
AM		 5376 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
5377 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
5378 { NULL, 0, 0, 0, 0 }
2f89ff8d
L		 5379};
5380
252b5132
RH		 5381/* ECOFF swapping routines. These are used when dealing with the
5382 .mdebug section, which is in the ECOFF debugging format. Copied
fe8bc63d 5383 from elf32-mips.c. */
252b5132
RH		 5384static const struct ecoff_debug_swap
5385elf64_alpha_ecoff_debug_swap =
5386{
5387 /* Symbol table magic number. */
5388 magicSym2,
5389 /* Alignment of debugging information. E.g., 4. */
5390 8,
5391 /* Sizes of external symbolic information. */
5392 sizeof (struct hdr_ext),
5393 sizeof (struct dnr_ext),
5394 sizeof (struct pdr_ext),
5395 sizeof (struct sym_ext),
5396 sizeof (struct opt_ext),
5397 sizeof (struct fdr_ext),
5398 sizeof (struct rfd_ext),
5399 sizeof (struct ext_ext),
5400 /* Functions to swap in external symbolic data. */
5401 ecoff_swap_hdr_in,
5402 ecoff_swap_dnr_in,
5403 ecoff_swap_pdr_in,
5404 ecoff_swap_sym_in,
5405 ecoff_swap_opt_in,
5406 ecoff_swap_fdr_in,
5407 ecoff_swap_rfd_in,
5408 ecoff_swap_ext_in,
5409 _bfd_ecoff_swap_tir_in,
5410 _bfd_ecoff_swap_rndx_in,
5411 /* Functions to swap out external symbolic data. */
5412 ecoff_swap_hdr_out,
5413 ecoff_swap_dnr_out,
5414 ecoff_swap_pdr_out,
5415 ecoff_swap_sym_out,
5416 ecoff_swap_opt_out,
5417 ecoff_swap_fdr_out,
5418 ecoff_swap_rfd_out,
5419 ecoff_swap_ext_out,
5420 _bfd_ecoff_swap_tir_out,
5421 _bfd_ecoff_swap_rndx_out,
5422 /* Function to read in symbolic data. */
5423 elf64_alpha_read_ecoff_info
5424};
5425\f
70bcb145
JW		 5426/* Use a non-standard hash bucket size of 8. */
5427
562ace6b 5428static const struct elf_size_info alpha_elf_size_info =
70bcb145
JW		 5429{
5430 sizeof (Elf64_External_Ehdr),
5431 sizeof (Elf64_External_Phdr),
5432 sizeof (Elf64_External_Shdr),
5433 sizeof (Elf64_External_Rel),
5434 sizeof (Elf64_External_Rela),
5435 sizeof (Elf64_External_Sym),
5436 sizeof (Elf64_External_Dyn),
5437 sizeof (Elf_External_Note),
5438 8,
5439 1,
45d6a902 5440 64, 3,
70bcb145
JW		 5441 ELFCLASS64, EV_CURRENT,
5442 bfd_elf64_write_out_phdrs,
5443 bfd_elf64_write_shdrs_and_ehdr,
5444 bfd_elf64_write_relocs,
73ff0d56 5445 bfd_elf64_swap_symbol_in,
70bcb145
JW		 5446 bfd_elf64_swap_symbol_out,
5447 bfd_elf64_slurp_reloc_table,
5448 bfd_elf64_slurp_symbol_table,
5449 bfd_elf64_swap_dyn_in,
5450 bfd_elf64_swap_dyn_out,
947216bf
AM		 5451 bfd_elf64_swap_reloc_in,
5452 bfd_elf64_swap_reloc_out,
5453 bfd_elf64_swap_reloca_in,
5454 bfd_elf64_swap_reloca_out
70bcb145
JW		 5455};
5456
252b5132
RH		 5457#define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
5458#define TARGET_LITTLE_NAME "elf64-alpha"
5459#define ELF_ARCH bfd_arch_alpha
56fc028e
AJ		 5460#define ELF_MACHINE_CODE EM_ALPHA
5461#define ELF_MAXPAGESIZE 0x10000
252b5132
RH		 5462
5463#define bfd_elf64_bfd_link_hash_table_create \
5464 elf64_alpha_bfd_link_hash_table_create
5465
5466#define bfd_elf64_bfd_reloc_type_lookup \
5467 elf64_alpha_bfd_reloc_type_lookup
5468#define elf_info_to_howto \
5469 elf64_alpha_info_to_howto
5470
5471#define bfd_elf64_mkobject \
5472 elf64_alpha_mkobject
5473#define elf_backend_object_p \
5474 elf64_alpha_object_p
5475
5476#define elf_backend_section_from_shdr \
5477 elf64_alpha_section_from_shdr
204692d7
RH		 5478#define elf_backend_section_flags \
5479 elf64_alpha_section_flags
252b5132
RH		 5480#define elf_backend_fake_sections \
5481 elf64_alpha_fake_sections
5482
5483#define bfd_elf64_bfd_is_local_label_name \
5484 elf64_alpha_is_local_label_name
5485#define bfd_elf64_find_nearest_line \
5486 elf64_alpha_find_nearest_line
5487#define bfd_elf64_bfd_relax_section \
5488 elf64_alpha_relax_section
5489
5490#define elf_backend_add_symbol_hook \
5491 elf64_alpha_add_symbol_hook
5492#define elf_backend_check_relocs \
5493 elf64_alpha_check_relocs
5494#define elf_backend_create_dynamic_sections \
5495 elf64_alpha_create_dynamic_sections
5496#define elf_backend_adjust_dynamic_symbol \
5497 elf64_alpha_adjust_dynamic_symbol
5498#define elf_backend_always_size_sections \
5499 elf64_alpha_always_size_sections
5500#define elf_backend_size_dynamic_sections \
5501 elf64_alpha_size_dynamic_sections
5502#define elf_backend_relocate_section \
5503 elf64_alpha_relocate_section
5504#define elf_backend_finish_dynamic_symbol \
5505 elf64_alpha_finish_dynamic_symbol
5506#define elf_backend_finish_dynamic_sections \
5507 elf64_alpha_finish_dynamic_sections
5508#define bfd_elf64_bfd_final_link \
5509 elf64_alpha_final_link
fcfbdf31
JJ		 5510#define elf_backend_reloc_type_class \
5511 elf64_alpha_reloc_type_class
252b5132
RH		 5512
5513#define elf_backend_ecoff_debug_swap \
5514 &elf64_alpha_ecoff_debug_swap
5515
70bcb145
JW		 5516#define elf_backend_size_info \
5517 alpha_elf_size_info
5518
2f89ff8d
L		 5519#define elf_backend_special_sections \
5520 elf64_alpha_special_sections
5521
38b1a46c 5522/* A few constants that determine how the .plt section is set up. */
252b5132
RH		 5523#define elf_backend_want_got_plt 0
5524#define elf_backend_plt_readonly 0
5525#define elf_backend_want_plt_sym 1
5526#define elf_backend_got_header_size 0
252b5132
RH		 5527
5528#include "elf64-target.h"
2238051f
RH		 5529\f
5530/* FreeBSD support. */
5531
5532#undef TARGET_LITTLE_SYM
5533#define TARGET_LITTLE_SYM bfd_elf64_alpha_freebsd_vec
5534#undef TARGET_LITTLE_NAME
5535#define TARGET_LITTLE_NAME "elf64-alpha-freebsd"
5536
5537/* The kernel recognizes executables as valid only if they carry a
5538 "FreeBSD" label in the ELF header. So we put this label on all
5539 executables and (for simplicity) also all other object files. */
5540
5541static void elf64_alpha_fbsd_post_process_headers
5542 PARAMS ((bfd *, struct bfd_link_info *));
5543
5544static void
5545elf64_alpha_fbsd_post_process_headers (abfd, link_info)
5546 bfd * abfd;
5547 struct bfd_link_info * link_info ATTRIBUTE_UNUSED;
5548{
5549 Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */
5550
5551 i_ehdrp = elf_elfheader (abfd);
5552
5553 /* Put an ABI label supported by FreeBSD >= 4.1. */
5554 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
5555#ifdef OLD_FREEBSD_ABI_LABEL
5556 /* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
5557 memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
5558#endif
5559}
5560
5561#undef elf_backend_post_process_headers
5562#define elf_backend_post_process_headers \
5563 elf64_alpha_fbsd_post_process_headers
5564
571fe01f 5565#undef elf64_bed
2238051f
RH		 5566#define elf64_bed elf64_alpha_fbsd_bed
5567
5568#include "elf64-target.h"
GDB Binutils - Deliverables
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