link_hash_copy_indirect and symbol flags
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
6f2750fe 2 Copyright (C) 1994-2016 Free Software Foundation, Inc.
252b5132
RH
3 Written by Ian Lance Taylor, Cygnus Support.
4
ae9a127f 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
ae9a127f
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
ae9a127f 10 (at your option) any later version.
252b5132 11
ae9a127f
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
ae9a127f 17 You should have received a copy of the GNU General Public License
fc0bffd6 18 along with this program; if not, write to the
3e110533 19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
53e09e0a 20 Boston, MA 02110-1301, USA. */
252b5132 21
cd123cb7 22
252b5132
RH
23/* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
27
3db64b00 28#include "sysdep.h"
183e98be 29#include <stdarg.h>
252b5132 30#include "bfd.h"
252b5132
RH
31#include "bfdlink.h"
32#include "libbfd.h"
33#include "elf-bfd.h"
34#include "elf/ppc.h"
7619e7c7 35#include "elf32-ppc.h"
9d8504b1 36#include "elf-vxworks.h"
6177242a 37#include "dwarf2.h"
08dc996f 38#include "opcode/ppc.h"
252b5132 39
b9c361e0
JL
40typedef enum split16_format_type
41{
42 split16a_type = 0,
43 split16d_type
44}
45split16_format_type;
46
f0fe0e16 47/* RELA relocations are used here. */
252b5132 48
252b5132 49static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 51static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 53
70bccea4
AM
54/* Branch prediction bit for branch taken relocs. */
55#define BRANCH_PREDICT_BIT 0x200000
56/* Mask to set RA in memory instructions. */
57#define RA_REGISTER_MASK 0x001f0000
58/* Value to shift register by to insert RA. */
59#define RA_REGISTER_SHIFT 16
252b5132
RH
60
61/* The name of the dynamic interpreter. This is put in the .interp
62 section. */
252b5132
RH
63#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
64
d7128ce4 65/* For old-style PLT. */
252b5132
RH
66/* The number of single-slot PLT entries (the rest use two slots). */
67#define PLT_NUM_SINGLE_ENTRIES 8192
68
d7128ce4 69/* For new-style .glink and .plt. */
a6aa5195 70#define GLINK_PLTRESOLVE 16*4
d7128ce4 71#define GLINK_ENTRY_SIZE 4*4
a7f2871e 72#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 73
9d8504b1
PB
74/* VxWorks uses its own plt layout, filled in by the static linker. */
75
76/* The standard VxWorks PLT entry. */
77#define VXWORKS_PLT_ENTRY_SIZE 32
78static const bfd_vma ppc_elf_vxworks_plt_entry
79 [VXWORKS_PLT_ENTRY_SIZE / 4] =
80 {
81 0x3d800000, /* lis r12,0 */
82 0x818c0000, /* lwz r12,0(r12) */
83 0x7d8903a6, /* mtctr r12 */
84 0x4e800420, /* bctr */
85 0x39600000, /* li r11,0 */
86 0x48000000, /* b 14 <.PLT0resolve+0x4> */
87 0x60000000, /* nop */
88 0x60000000, /* nop */
89 };
90static const bfd_vma ppc_elf_vxworks_pic_plt_entry
91 [VXWORKS_PLT_ENTRY_SIZE / 4] =
92 {
93 0x3d9e0000, /* addis r12,r30,0 */
94 0x818c0000, /* lwz r12,0(r12) */
95 0x7d8903a6, /* mtctr r12 */
96 0x4e800420, /* bctr */
97 0x39600000, /* li r11,0 */
98 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
99 0x60000000, /* nop */
100 0x60000000, /* nop */
101 };
102
103/* The initial VxWorks PLT entry. */
104#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
105static const bfd_vma ppc_elf_vxworks_plt0_entry
106 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
107 {
108 0x3d800000, /* lis r12,0 */
109 0x398c0000, /* addi r12,r12,0 */
110 0x800c0008, /* lwz r0,8(r12) */
111 0x7c0903a6, /* mtctr r0 */
112 0x818c0004, /* lwz r12,4(r12) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
116 };
117static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
118 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
119 {
120 0x819e0008, /* lwz r12,8(r30) */
121 0x7d8903a6, /* mtctr r12 */
122 0x819e0004, /* lwz r12,4(r30) */
123 0x4e800420, /* bctr */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 0x60000000, /* nop */
128 };
129
130/* For executables, we have some additional relocations in
131 .rela.plt.unloaded, for the kernel loader. */
132
133/* The number of non-JMP_SLOT relocations per PLT0 slot. */
134#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
135/* The number of relocations in the PLTResolve slot. */
136#define VXWORKS_PLTRESOLVE_RELOCS 2
137/* The number of relocations in the PLTResolve slot when when creating
138 a shared library. */
139#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
140
d7128ce4 141/* Some instructions. */
d7128ce4 142#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
143#define ADDIS_11_30 0x3d7e0000
144#define ADDIS_12_12 0x3d8c0000
d7128ce4 145#define ADDI_11_11 0x396b0000
d7128ce4 146#define ADD_0_11_11 0x7c0b5a14
a7f2871e 147#define ADD_3_12_2 0x7c6c1214
d7128ce4 148#define ADD_11_0_11 0x7d605a14
a6aa5195 149#define B 0x48000000
da3a2088 150#define BA 0x48000002
a6aa5195 151#define BCL_20_31 0x429f0005
d7128ce4 152#define BCTR 0x4e800420
a7f2871e
AM
153#define BEQLR 0x4d820020
154#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
155#define LIS_11 0x3d600000
156#define LIS_12 0x3d800000
a6aa5195
AM
157#define LWZU_0_12 0x840c0000
158#define LWZ_0_12 0x800c0000
a7f2871e 159#define LWZ_11_3 0x81630000
a6aa5195
AM
160#define LWZ_11_11 0x816b0000
161#define LWZ_11_30 0x817e0000
a7f2871e 162#define LWZ_12_3 0x81830000
a6aa5195 163#define LWZ_12_12 0x818c0000
a7f2871e
AM
164#define MR_0_3 0x7c601b78
165#define MR_3_0 0x7c030378
a6aa5195
AM
166#define MFLR_0 0x7c0802a6
167#define MFLR_12 0x7d8802a6
168#define MTCTR_0 0x7c0903a6
169#define MTCTR_11 0x7d6903a6
170#define MTLR_0 0x7c0803a6
171#define NOP 0x60000000
172#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
173
174/* Offset of tp and dtp pointers from start of TLS block. */
175#define TP_OFFSET 0x7000
176#define DTP_OFFSET 0x8000
e87d4038
AM
177
178/* The value of a defined global symbol. */
179#define SYM_VAL(SYM) \
180 ((SYM)->root.u.def.section->output_section->vma \
181 + (SYM)->root.u.def.section->output_offset \
182 + (SYM)->root.u.def.value)
7fce784e 183\f
e47cd125 184static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 185
8da6118f 186static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
187 /* This reloc does nothing. */
188 HOWTO (R_PPC_NONE, /* type */
189 0, /* rightshift */
6346d5ca
AM
190 3, /* size (0 = byte, 1 = short, 2 = long) */
191 0, /* bitsize */
b34976b6 192 FALSE, /* pc_relative */
252b5132 193 0, /* bitpos */
86c95733 194 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
195 bfd_elf_generic_reloc, /* special_function */
196 "R_PPC_NONE", /* name */
b34976b6 197 FALSE, /* partial_inplace */
252b5132
RH
198 0, /* src_mask */
199 0, /* dst_mask */
b34976b6 200 FALSE), /* pcrel_offset */
252b5132
RH
201
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC_ADDR32, /* type */
204 0, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 32, /* bitsize */
b34976b6 207 FALSE, /* pc_relative */
252b5132 208 0, /* bitpos */
86c95733 209 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
210 bfd_elf_generic_reloc, /* special_function */
211 "R_PPC_ADDR32", /* name */
b34976b6 212 FALSE, /* partial_inplace */
252b5132
RH
213 0, /* src_mask */
214 0xffffffff, /* dst_mask */
b34976b6 215 FALSE), /* pcrel_offset */
252b5132
RH
216
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC_ADDR24, /* type */
220 0, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 26, /* bitsize */
b34976b6 223 FALSE, /* pc_relative */
252b5132 224 0, /* bitpos */
86c95733 225 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC_ADDR24", /* name */
b34976b6 228 FALSE, /* partial_inplace */
252b5132
RH
229 0, /* src_mask */
230 0x3fffffc, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
252b5132
RH
232
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC_ADDR16, /* type */
235 0, /* rightshift */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
237 16, /* bitsize */
b34976b6 238 FALSE, /* pc_relative */
252b5132
RH
239 0, /* bitpos */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC_ADDR16", /* name */
b34976b6 243 FALSE, /* partial_inplace */
252b5132
RH
244 0, /* src_mask */
245 0xffff, /* dst_mask */
b34976b6 246 FALSE), /* pcrel_offset */
252b5132
RH
247
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC_ADDR16_LO, /* type */
250 0, /* rightshift */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
252 16, /* bitsize */
b34976b6 253 FALSE, /* pc_relative */
252b5132
RH
254 0, /* bitpos */
255 complain_overflow_dont,/* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC_ADDR16_LO", /* name */
b34976b6 258 FALSE, /* partial_inplace */
252b5132
RH
259 0, /* src_mask */
260 0xffff, /* dst_mask */
b34976b6 261 FALSE), /* pcrel_offset */
252b5132
RH
262
263 /* The high order 16 bits of an address. */
264 HOWTO (R_PPC_ADDR16_HI, /* type */
265 16, /* rightshift */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
252b5132
RH
269 0, /* bitpos */
270 complain_overflow_dont, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC_ADDR16_HI", /* name */
b34976b6 273 FALSE, /* partial_inplace */
252b5132
RH
274 0, /* src_mask */
275 0xffff, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
252b5132
RH
277
278 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 279 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
280 HOWTO (R_PPC_ADDR16_HA, /* type */
281 16, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
252b5132
RH
285 0, /* bitpos */
286 complain_overflow_dont, /* complain_on_overflow */
287 ppc_elf_addr16_ha_reloc, /* special_function */
288 "R_PPC_ADDR16_HA", /* name */
b34976b6 289 FALSE, /* partial_inplace */
252b5132
RH
290 0, /* src_mask */
291 0xffff, /* dst_mask */
b34976b6 292 FALSE), /* pcrel_offset */
252b5132
RH
293
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC_ADDR14, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 16, /* bitsize */
b34976b6 300 FALSE, /* pc_relative */
252b5132 301 0, /* bitpos */
86c95733 302 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC_ADDR14", /* name */
b34976b6 305 FALSE, /* partial_inplace */
252b5132
RH
306 0, /* src_mask */
307 0xfffc, /* dst_mask */
b34976b6 308 FALSE), /* pcrel_offset */
252b5132
RH
309
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
8da6118f 312 bits must be zero. */
252b5132
RH
313 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
314 0, /* rightshift */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
316 16, /* bitsize */
b34976b6 317 FALSE, /* pc_relative */
252b5132 318 0, /* bitpos */
86c95733 319 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
320 bfd_elf_generic_reloc, /* special_function */
321 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 322 FALSE, /* partial_inplace */
252b5132
RH
323 0, /* src_mask */
324 0xfffc, /* dst_mask */
b34976b6 325 FALSE), /* pcrel_offset */
252b5132
RH
326
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
b34976b6 334 FALSE, /* pc_relative */
252b5132 335 0, /* bitpos */
86c95733 336 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
337 bfd_elf_generic_reloc, /* special_function */
338 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 339 FALSE, /* partial_inplace */
252b5132
RH
340 0, /* src_mask */
341 0xfffc, /* dst_mask */
b34976b6 342 FALSE), /* pcrel_offset */
252b5132 343
8da6118f 344 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
345 HOWTO (R_PPC_REL24, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 26, /* bitsize */
b34976b6 349 TRUE, /* pc_relative */
252b5132
RH
350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC_REL24", /* name */
b34976b6 354 FALSE, /* partial_inplace */
252b5132
RH
355 0, /* src_mask */
356 0x3fffffc, /* dst_mask */
b34976b6 357 TRUE), /* pcrel_offset */
252b5132 358
8da6118f 359 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
360 HOWTO (R_PPC_REL14, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 16, /* bitsize */
b34976b6 364 TRUE, /* pc_relative */
252b5132
RH
365 0, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_PPC_REL14", /* name */
b34976b6 369 FALSE, /* partial_inplace */
252b5132
RH
370 0, /* src_mask */
371 0xfffc, /* dst_mask */
b34976b6 372 TRUE), /* pcrel_offset */
252b5132 373
8da6118f 374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
375 the branch is expected to be taken. The lower two bits must be
376 zero. */
377 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 TRUE, /* pc_relative */
252b5132
RH
382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 386 FALSE, /* partial_inplace */
252b5132
RH
387 0, /* src_mask */
388 0xfffc, /* dst_mask */
b34976b6 389 TRUE), /* pcrel_offset */
252b5132 390
8da6118f 391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
392 the branch is not expected to be taken. The lower two bits must
393 be zero. */
394 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 16, /* bitsize */
b34976b6 398 TRUE, /* pc_relative */
252b5132
RH
399 0, /* bitpos */
400 complain_overflow_signed, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 403 FALSE, /* partial_inplace */
252b5132
RH
404 0, /* src_mask */
405 0xfffc, /* dst_mask */
b34976b6 406 TRUE), /* pcrel_offset */
252b5132
RH
407
408 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
409 symbol. */
410 HOWTO (R_PPC_GOT16, /* type */
411 0, /* rightshift */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
413 16, /* bitsize */
b34976b6 414 FALSE, /* pc_relative */
252b5132
RH
415 0, /* bitpos */
416 complain_overflow_signed, /* complain_on_overflow */
3ce51288 417 ppc_elf_unhandled_reloc, /* special_function */
252b5132 418 "R_PPC_GOT16", /* name */
b34976b6 419 FALSE, /* partial_inplace */
252b5132
RH
420 0, /* src_mask */
421 0xffff, /* dst_mask */
b34976b6 422 FALSE), /* pcrel_offset */
252b5132
RH
423
424 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
425 the symbol. */
426 HOWTO (R_PPC_GOT16_LO, /* type */
427 0, /* rightshift */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
429 16, /* bitsize */
b34976b6 430 FALSE, /* pc_relative */
252b5132
RH
431 0, /* bitpos */
432 complain_overflow_dont, /* complain_on_overflow */
3ce51288 433 ppc_elf_unhandled_reloc, /* special_function */
252b5132 434 "R_PPC_GOT16_LO", /* name */
b34976b6 435 FALSE, /* partial_inplace */
252b5132
RH
436 0, /* src_mask */
437 0xffff, /* dst_mask */
b34976b6 438 FALSE), /* pcrel_offset */
252b5132
RH
439
440 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
441 the symbol. */
442 HOWTO (R_PPC_GOT16_HI, /* type */
443 16, /* rightshift */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
b34976b6 446 FALSE, /* pc_relative */
252b5132 447 0, /* bitpos */
86c95733 448 complain_overflow_dont, /* complain_on_overflow */
3ce51288 449 ppc_elf_unhandled_reloc, /* special_function */
252b5132 450 "R_PPC_GOT16_HI", /* name */
b34976b6 451 FALSE, /* partial_inplace */
252b5132
RH
452 0, /* src_mask */
453 0xffff, /* dst_mask */
b34976b6 454 FALSE), /* pcrel_offset */
252b5132
RH
455
456 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
457 the symbol. */
458 HOWTO (R_PPC_GOT16_HA, /* type */
459 16, /* rightshift */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
461 16, /* bitsize */
b34976b6 462 FALSE, /* pc_relative */
252b5132 463 0, /* bitpos */
86c95733 464 complain_overflow_dont, /* complain_on_overflow */
3ce51288 465 ppc_elf_unhandled_reloc, /* special_function */
252b5132 466 "R_PPC_GOT16_HA", /* name */
b34976b6 467 FALSE, /* partial_inplace */
252b5132
RH
468 0, /* src_mask */
469 0xffff, /* dst_mask */
b34976b6 470 FALSE), /* pcrel_offset */
252b5132
RH
471
472 /* Like R_PPC_REL24, but referring to the procedure linkage table
473 entry for the symbol. */
474 HOWTO (R_PPC_PLTREL24, /* type */
475 0, /* rightshift */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
477 26, /* bitsize */
b34976b6 478 TRUE, /* pc_relative */
252b5132 479 0, /* bitpos */
3ce51288
AM
480 complain_overflow_signed, /* complain_on_overflow */
481 ppc_elf_unhandled_reloc, /* special_function */
252b5132 482 "R_PPC_PLTREL24", /* name */
b34976b6 483 FALSE, /* partial_inplace */
252b5132
RH
484 0, /* src_mask */
485 0x3fffffc, /* dst_mask */
b34976b6 486 TRUE), /* pcrel_offset */
252b5132
RH
487
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC_COPY, /* type */
494 0, /* rightshift */
495 2, /* size (0 = byte, 1 = short, 2 = long) */
496 32, /* bitsize */
b34976b6 497 FALSE, /* pc_relative */
252b5132 498 0, /* bitpos */
86c95733 499 complain_overflow_dont, /* complain_on_overflow */
3ce51288 500 ppc_elf_unhandled_reloc, /* special_function */
252b5132 501 "R_PPC_COPY", /* name */
b34976b6 502 FALSE, /* partial_inplace */
252b5132
RH
503 0, /* src_mask */
504 0, /* dst_mask */
b34976b6 505 FALSE), /* pcrel_offset */
252b5132
RH
506
507 /* Like R_PPC_ADDR32, but used when setting global offset table
508 entries. */
509 HOWTO (R_PPC_GLOB_DAT, /* type */
510 0, /* rightshift */
511 2, /* size (0 = byte, 1 = short, 2 = long) */
512 32, /* bitsize */
b34976b6 513 FALSE, /* pc_relative */
252b5132 514 0, /* bitpos */
86c95733 515 complain_overflow_dont, /* complain_on_overflow */
3ce51288 516 ppc_elf_unhandled_reloc, /* special_function */
252b5132 517 "R_PPC_GLOB_DAT", /* name */
b34976b6 518 FALSE, /* partial_inplace */
252b5132
RH
519 0, /* src_mask */
520 0xffffffff, /* dst_mask */
b34976b6 521 FALSE), /* pcrel_offset */
252b5132
RH
522
523 /* Marks a procedure linkage table entry for a symbol. */
524 HOWTO (R_PPC_JMP_SLOT, /* type */
525 0, /* rightshift */
526 2, /* size (0 = byte, 1 = short, 2 = long) */
527 32, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
252b5132 529 0, /* bitpos */
86c95733 530 complain_overflow_dont, /* complain_on_overflow */
3ce51288 531 ppc_elf_unhandled_reloc, /* special_function */
252b5132 532 "R_PPC_JMP_SLOT", /* name */
b34976b6 533 FALSE, /* partial_inplace */
252b5132
RH
534 0, /* src_mask */
535 0, /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
252b5132
RH
537
538 /* Used only by the dynamic linker. When the object is run, this
539 longword is set to the load address of the object, plus the
540 addend. */
541 HOWTO (R_PPC_RELATIVE, /* type */
542 0, /* rightshift */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
544 32, /* bitsize */
b34976b6 545 FALSE, /* pc_relative */
252b5132 546 0, /* bitpos */
86c95733 547 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
548 bfd_elf_generic_reloc, /* special_function */
549 "R_PPC_RELATIVE", /* name */
b34976b6 550 FALSE, /* partial_inplace */
252b5132
RH
551 0, /* src_mask */
552 0xffffffff, /* dst_mask */
b34976b6 553 FALSE), /* pcrel_offset */
252b5132
RH
554
555 /* Like R_PPC_REL24, but uses the value of the symbol within the
556 object rather than the final value. Normally used for
557 _GLOBAL_OFFSET_TABLE_. */
558 HOWTO (R_PPC_LOCAL24PC, /* type */
559 0, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 26, /* bitsize */
b34976b6 562 TRUE, /* pc_relative */
252b5132
RH
563 0, /* bitpos */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_PPC_LOCAL24PC", /* name */
b34976b6 567 FALSE, /* partial_inplace */
252b5132
RH
568 0, /* src_mask */
569 0x3fffffc, /* dst_mask */
b34976b6 570 TRUE), /* pcrel_offset */
252b5132
RH
571
572 /* Like R_PPC_ADDR32, but may be unaligned. */
573 HOWTO (R_PPC_UADDR32, /* type */
574 0, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 32, /* bitsize */
b34976b6 577 FALSE, /* pc_relative */
252b5132 578 0, /* bitpos */
86c95733 579 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
580 bfd_elf_generic_reloc, /* special_function */
581 "R_PPC_UADDR32", /* name */
b34976b6 582 FALSE, /* partial_inplace */
252b5132
RH
583 0, /* src_mask */
584 0xffffffff, /* dst_mask */
b34976b6 585 FALSE), /* pcrel_offset */
252b5132
RH
586
587 /* Like R_PPC_ADDR16, but may be unaligned. */
588 HOWTO (R_PPC_UADDR16, /* type */
589 0, /* rightshift */
590 1, /* size (0 = byte, 1 = short, 2 = long) */
591 16, /* bitsize */
b34976b6 592 FALSE, /* pc_relative */
252b5132
RH
593 0, /* bitpos */
594 complain_overflow_bitfield, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_PPC_UADDR16", /* name */
b34976b6 597 FALSE, /* partial_inplace */
252b5132
RH
598 0, /* src_mask */
599 0xffff, /* dst_mask */
b34976b6 600 FALSE), /* pcrel_offset */
252b5132
RH
601
602 /* 32-bit PC relative */
603 HOWTO (R_PPC_REL32, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 32, /* bitsize */
b34976b6 607 TRUE, /* pc_relative */
252b5132 608 0, /* bitpos */
86c95733 609 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC_REL32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
252b5132
RH
613 0, /* src_mask */
614 0xffffffff, /* dst_mask */
b34976b6 615 TRUE), /* pcrel_offset */
252b5132
RH
616
617 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 618 FIXME: not supported. */
252b5132
RH
619 HOWTO (R_PPC_PLT32, /* type */
620 0, /* rightshift */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
622 32, /* bitsize */
b34976b6 623 FALSE, /* pc_relative */
252b5132 624 0, /* bitpos */
86c95733 625 complain_overflow_dont, /* complain_on_overflow */
3ce51288 626 ppc_elf_unhandled_reloc, /* special_function */
252b5132 627 "R_PPC_PLT32", /* name */
b34976b6 628 FALSE, /* partial_inplace */
252b5132
RH
629 0, /* src_mask */
630 0, /* dst_mask */
b34976b6 631 FALSE), /* pcrel_offset */
252b5132
RH
632
633 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 634 FIXME: not supported. */
252b5132
RH
635 HOWTO (R_PPC_PLTREL32, /* type */
636 0, /* rightshift */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
638 32, /* bitsize */
b34976b6 639 TRUE, /* pc_relative */
252b5132 640 0, /* bitpos */
86c95733 641 complain_overflow_dont, /* complain_on_overflow */
3ce51288 642 ppc_elf_unhandled_reloc, /* special_function */
252b5132 643 "R_PPC_PLTREL32", /* name */
b34976b6 644 FALSE, /* partial_inplace */
252b5132
RH
645 0, /* src_mask */
646 0, /* dst_mask */
b34976b6 647 TRUE), /* pcrel_offset */
252b5132
RH
648
649 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
650 the symbol. */
651 HOWTO (R_PPC_PLT16_LO, /* type */
652 0, /* rightshift */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
654 16, /* bitsize */
b34976b6 655 FALSE, /* pc_relative */
252b5132
RH
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
3ce51288 658 ppc_elf_unhandled_reloc, /* special_function */
252b5132 659 "R_PPC_PLT16_LO", /* name */
b34976b6 660 FALSE, /* partial_inplace */
252b5132
RH
661 0, /* src_mask */
662 0xffff, /* dst_mask */
b34976b6 663 FALSE), /* pcrel_offset */
252b5132
RH
664
665 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
666 the symbol. */
667 HOWTO (R_PPC_PLT16_HI, /* type */
668 16, /* rightshift */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
670 16, /* bitsize */
b34976b6 671 FALSE, /* pc_relative */
252b5132 672 0, /* bitpos */
86c95733 673 complain_overflow_dont, /* complain_on_overflow */
3ce51288 674 ppc_elf_unhandled_reloc, /* special_function */
252b5132 675 "R_PPC_PLT16_HI", /* name */
b34976b6 676 FALSE, /* partial_inplace */
252b5132
RH
677 0, /* src_mask */
678 0xffff, /* dst_mask */
b34976b6 679 FALSE), /* pcrel_offset */
252b5132
RH
680
681 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
682 the symbol. */
683 HOWTO (R_PPC_PLT16_HA, /* type */
684 16, /* rightshift */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
686 16, /* bitsize */
b34976b6 687 FALSE, /* pc_relative */
252b5132 688 0, /* bitpos */
86c95733 689 complain_overflow_dont, /* complain_on_overflow */
3ce51288 690 ppc_elf_unhandled_reloc, /* special_function */
252b5132 691 "R_PPC_PLT16_HA", /* name */
b34976b6 692 FALSE, /* partial_inplace */
252b5132
RH
693 0, /* src_mask */
694 0xffff, /* dst_mask */
b34976b6 695 FALSE), /* pcrel_offset */
252b5132
RH
696
697 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
698 small data items. */
699 HOWTO (R_PPC_SDAREL16, /* type */
700 0, /* rightshift */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
702 16, /* bitsize */
b34976b6 703 FALSE, /* pc_relative */
252b5132
RH
704 0, /* bitpos */
705 complain_overflow_signed, /* complain_on_overflow */
3ce51288 706 ppc_elf_unhandled_reloc, /* special_function */
252b5132 707 "R_PPC_SDAREL16", /* name */
b34976b6 708 FALSE, /* partial_inplace */
252b5132
RH
709 0, /* src_mask */
710 0xffff, /* dst_mask */
b34976b6 711 FALSE), /* pcrel_offset */
252b5132 712
c061c2d8 713 /* 16-bit section relative relocation. */
252b5132
RH
714 HOWTO (R_PPC_SECTOFF, /* type */
715 0, /* rightshift */
c061c2d8
AM
716 1, /* size (0 = byte, 1 = short, 2 = long) */
717 16, /* bitsize */
b34976b6 718 FALSE, /* pc_relative */
252b5132 719 0, /* bitpos */
86c95733 720 complain_overflow_signed, /* complain_on_overflow */
3ce51288 721 ppc_elf_unhandled_reloc, /* special_function */
252b5132 722 "R_PPC_SECTOFF", /* name */
b34976b6 723 FALSE, /* partial_inplace */
252b5132 724 0, /* src_mask */
c061c2d8 725 0xffff, /* dst_mask */
b34976b6 726 FALSE), /* pcrel_offset */
252b5132 727
c3668558 728 /* 16-bit lower half section relative relocation. */
252b5132
RH
729 HOWTO (R_PPC_SECTOFF_LO, /* type */
730 0, /* rightshift */
731 1, /* size (0 = byte, 1 = short, 2 = long) */
732 16, /* bitsize */
b34976b6 733 FALSE, /* pc_relative */
252b5132
RH
734 0, /* bitpos */
735 complain_overflow_dont, /* complain_on_overflow */
3ce51288 736 ppc_elf_unhandled_reloc, /* special_function */
252b5132 737 "R_PPC_SECTOFF_LO", /* name */
b34976b6 738 FALSE, /* partial_inplace */
252b5132
RH
739 0, /* src_mask */
740 0xffff, /* dst_mask */
b34976b6 741 FALSE), /* pcrel_offset */
252b5132 742
c3668558 743 /* 16-bit upper half section relative relocation. */
252b5132
RH
744 HOWTO (R_PPC_SECTOFF_HI, /* type */
745 16, /* rightshift */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
747 16, /* bitsize */
b34976b6 748 FALSE, /* pc_relative */
252b5132 749 0, /* bitpos */
86c95733 750 complain_overflow_dont, /* complain_on_overflow */
3ce51288 751 ppc_elf_unhandled_reloc, /* special_function */
252b5132 752 "R_PPC_SECTOFF_HI", /* name */
b34976b6 753 FALSE, /* partial_inplace */
252b5132
RH
754 0, /* src_mask */
755 0xffff, /* dst_mask */
b34976b6 756 FALSE), /* pcrel_offset */
252b5132 757
c3668558 758 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
759 HOWTO (R_PPC_SECTOFF_HA, /* type */
760 16, /* rightshift */
761 1, /* size (0 = byte, 1 = short, 2 = long) */
762 16, /* bitsize */
b34976b6 763 FALSE, /* pc_relative */
252b5132 764 0, /* bitpos */
86c95733 765 complain_overflow_dont, /* complain_on_overflow */
3ce51288 766 ppc_elf_unhandled_reloc, /* special_function */
252b5132 767 "R_PPC_SECTOFF_HA", /* name */
b34976b6 768 FALSE, /* partial_inplace */
252b5132
RH
769 0, /* src_mask */
770 0xffff, /* dst_mask */
b34976b6 771 FALSE), /* pcrel_offset */
252b5132 772
727fc41e 773 /* Marker relocs for TLS. */
7619e7c7 774 HOWTO (R_PPC_TLS,
252b5132
RH
775 0, /* rightshift */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
777 32, /* bitsize */
b34976b6 778 FALSE, /* pc_relative */
252b5132 779 0, /* bitpos */
7619e7c7 780 complain_overflow_dont, /* complain_on_overflow */
252b5132 781 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
782 "R_PPC_TLS", /* name */
783 FALSE, /* partial_inplace */
784 0, /* src_mask */
785 0, /* dst_mask */
786 FALSE), /* pcrel_offset */
787
727fc41e
AM
788 HOWTO (R_PPC_TLSGD,
789 0, /* rightshift */
790 2, /* size (0 = byte, 1 = short, 2 = long) */
791 32, /* bitsize */
792 FALSE, /* pc_relative */
793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC_TLSGD", /* name */
797 FALSE, /* partial_inplace */
798 0, /* src_mask */
799 0, /* dst_mask */
800 FALSE), /* pcrel_offset */
801
802 HOWTO (R_PPC_TLSLD,
803 0, /* rightshift */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
805 32, /* bitsize */
806 FALSE, /* pc_relative */
807 0, /* bitpos */
808 complain_overflow_dont, /* complain_on_overflow */
809 bfd_elf_generic_reloc, /* special_function */
810 "R_PPC_TLSLD", /* name */
811 FALSE, /* partial_inplace */
812 0, /* src_mask */
813 0, /* dst_mask */
814 FALSE), /* pcrel_offset */
815
7619e7c7
AM
816 /* Computes the load module index of the load module that contains the
817 definition of its TLS sym. */
818 HOWTO (R_PPC_DTPMOD32,
819 0, /* rightshift */
820 2, /* size (0 = byte, 1 = short, 2 = long) */
821 32, /* bitsize */
822 FALSE, /* pc_relative */
823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
825 ppc_elf_unhandled_reloc, /* special_function */
826 "R_PPC_DTPMOD32", /* name */
b34976b6 827 FALSE, /* partial_inplace */
252b5132
RH
828 0, /* src_mask */
829 0xffffffff, /* dst_mask */
b34976b6 830 FALSE), /* pcrel_offset */
252b5132 831
7619e7c7
AM
832 /* Computes a dtv-relative displacement, the difference between the value
833 of sym+add and the base address of the thread-local storage block that
834 contains the definition of sym, minus 0x8000. */
835 HOWTO (R_PPC_DTPREL32,
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 32, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_dont, /* complain_on_overflow */
842 ppc_elf_unhandled_reloc, /* special_function */
843 "R_PPC_DTPREL32", /* name */
844 FALSE, /* partial_inplace */
845 0, /* src_mask */
846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848
849 /* A 16 bit dtprel reloc. */
850 HOWTO (R_PPC_DTPREL16,
252b5132
RH
851 0, /* rightshift */
852 1, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
b34976b6 854 FALSE, /* pc_relative */
252b5132 855 0, /* bitpos */
7619e7c7
AM
856 complain_overflow_signed, /* complain_on_overflow */
857 ppc_elf_unhandled_reloc, /* special_function */
858 "R_PPC_DTPREL16", /* name */
b34976b6 859 FALSE, /* partial_inplace */
252b5132
RH
860 0, /* src_mask */
861 0xffff, /* dst_mask */
b34976b6 862 FALSE), /* pcrel_offset */
252b5132 863
7619e7c7
AM
864 /* Like DTPREL16, but no overflow. */
865 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
866 0, /* rightshift */
867 1, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
b34976b6 869 FALSE, /* pc_relative */
252b5132 870 0, /* bitpos */
7619e7c7
AM
871 complain_overflow_dont, /* complain_on_overflow */
872 ppc_elf_unhandled_reloc, /* special_function */
873 "R_PPC_DTPREL16_LO", /* name */
b34976b6 874 FALSE, /* partial_inplace */
252b5132
RH
875 0, /* src_mask */
876 0xffff, /* dst_mask */
b34976b6 877 FALSE), /* pcrel_offset */
252b5132 878
7619e7c7
AM
879 /* Like DTPREL16_LO, but next higher group of 16 bits. */
880 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
881 16, /* rightshift */
882 1, /* size (0 = byte, 1 = short, 2 = long) */
883 16, /* bitsize */
b34976b6 884 FALSE, /* pc_relative */
252b5132
RH
885 0, /* bitpos */
886 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
887 ppc_elf_unhandled_reloc, /* special_function */
888 "R_PPC_DTPREL16_HI", /* name */
b34976b6 889 FALSE, /* partial_inplace */
252b5132
RH
890 0, /* src_mask */
891 0xffff, /* dst_mask */
b34976b6 892 FALSE), /* pcrel_offset */
252b5132 893
7619e7c7
AM
894 /* Like DTPREL16_HI, but adjust for low 16 bits. */
895 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
896 16, /* rightshift */
897 1, /* size (0 = byte, 1 = short, 2 = long) */
898 16, /* bitsize */
b34976b6 899 FALSE, /* pc_relative */
252b5132
RH
900 0, /* bitpos */
901 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
902 ppc_elf_unhandled_reloc, /* special_function */
903 "R_PPC_DTPREL16_HA", /* name */
b34976b6 904 FALSE, /* partial_inplace */
252b5132
RH
905 0, /* src_mask */
906 0xffff, /* dst_mask */
b34976b6 907 FALSE), /* pcrel_offset */
252b5132 908
7619e7c7
AM
909 /* Computes a tp-relative displacement, the difference between the value of
910 sym+add and the value of the thread pointer (r13). */
911 HOWTO (R_PPC_TPREL32,
912 0, /* rightshift */
913 2, /* size (0 = byte, 1 = short, 2 = long) */
914 32, /* bitsize */
915 FALSE, /* pc_relative */
916 0, /* bitpos */
917 complain_overflow_dont, /* complain_on_overflow */
918 ppc_elf_unhandled_reloc, /* special_function */
919 "R_PPC_TPREL32", /* name */
920 FALSE, /* partial_inplace */
921 0, /* src_mask */
922 0xffffffff, /* dst_mask */
923 FALSE), /* pcrel_offset */
924
925 /* A 16 bit tprel reloc. */
926 HOWTO (R_PPC_TPREL16,
252b5132
RH
927 0, /* rightshift */
928 1, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
b34976b6 930 FALSE, /* pc_relative */
252b5132 931 0, /* bitpos */
7619e7c7
AM
932 complain_overflow_signed, /* complain_on_overflow */
933 ppc_elf_unhandled_reloc, /* special_function */
934 "R_PPC_TPREL16", /* name */
b34976b6 935 FALSE, /* partial_inplace */
252b5132
RH
936 0, /* src_mask */
937 0xffff, /* dst_mask */
b34976b6 938 FALSE), /* pcrel_offset */
252b5132 939
7619e7c7
AM
940 /* Like TPREL16, but no overflow. */
941 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
942 0, /* rightshift */
943 1, /* size (0 = byte, 1 = short, 2 = long) */
944 16, /* bitsize */
b34976b6 945 FALSE, /* pc_relative */
252b5132 946 0, /* bitpos */
7619e7c7
AM
947 complain_overflow_dont, /* complain_on_overflow */
948 ppc_elf_unhandled_reloc, /* special_function */
949 "R_PPC_TPREL16_LO", /* name */
b34976b6 950 FALSE, /* partial_inplace */
252b5132
RH
951 0, /* src_mask */
952 0xffff, /* dst_mask */
b34976b6 953 FALSE), /* pcrel_offset */
252b5132 954
7619e7c7
AM
955 /* Like TPREL16_LO, but next higher group of 16 bits. */
956 HOWTO (R_PPC_TPREL16_HI,
957 16, /* rightshift */
958 1, /* size (0 = byte, 1 = short, 2 = long) */
959 16, /* bitsize */
960 FALSE, /* pc_relative */
961 0, /* bitpos */
962 complain_overflow_dont, /* complain_on_overflow */
963 ppc_elf_unhandled_reloc, /* special_function */
964 "R_PPC_TPREL16_HI", /* name */
965 FALSE, /* partial_inplace */
966 0, /* src_mask */
967 0xffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
969
970 /* Like TPREL16_HI, but adjust for low 16 bits. */
971 HOWTO (R_PPC_TPREL16_HA,
972 16, /* rightshift */
973 1, /* size (0 = byte, 1 = short, 2 = long) */
974 16, /* bitsize */
975 FALSE, /* pc_relative */
976 0, /* bitpos */
977 complain_overflow_dont, /* complain_on_overflow */
978 ppc_elf_unhandled_reloc, /* special_function */
979 "R_PPC_TPREL16_HA", /* name */
980 FALSE, /* partial_inplace */
981 0, /* src_mask */
982 0xffff, /* dst_mask */
983 FALSE), /* pcrel_offset */
984
985 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
986 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
987 to the first entry. */
988 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
989 0, /* rightshift */
990 1, /* size (0 = byte, 1 = short, 2 = long) */
991 16, /* bitsize */
b34976b6 992 FALSE, /* pc_relative */
252b5132
RH
993 0, /* bitpos */
994 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
995 ppc_elf_unhandled_reloc, /* special_function */
996 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 997 FALSE, /* partial_inplace */
252b5132
RH
998 0, /* src_mask */
999 0xffff, /* dst_mask */
b34976b6 1000 FALSE), /* pcrel_offset */
252b5132 1001
7619e7c7
AM
1002 /* Like GOT_TLSGD16, but no overflow. */
1003 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1004 0, /* rightshift */
7619e7c7 1005 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1006 16, /* bitsize */
b34976b6 1007 FALSE, /* pc_relative */
252b5132 1008 0, /* bitpos */
7619e7c7
AM
1009 complain_overflow_dont, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc, /* special_function */
1011 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1012 FALSE, /* partial_inplace */
252b5132
RH
1013 0, /* src_mask */
1014 0xffff, /* dst_mask */
b34976b6 1015 FALSE), /* pcrel_offset */
252b5132 1016
7619e7c7
AM
1017 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1018 HOWTO (R_PPC_GOT_TLSGD16_HI,
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 0, /* bitpos */
1024 complain_overflow_dont, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc, /* special_function */
1026 "R_PPC_GOT_TLSGD16_HI", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0xffff, /* dst_mask */
1030 FALSE), /* pcrel_offset */
252b5132 1031
7619e7c7
AM
1032 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1033 HOWTO (R_PPC_GOT_TLSGD16_HA,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1036 16, /* bitsize */
1037 FALSE, /* pc_relative */
1038 0, /* bitpos */
1039 complain_overflow_dont, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc, /* special_function */
1041 "R_PPC_GOT_TLSGD16_HA", /* name */
1042 FALSE, /* partial_inplace */
1043 0, /* src_mask */
1044 0xffff, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1046
1047 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1048 with values (sym+add)@dtpmod and zero, and computes the offset to the
1049 first entry. */
1050 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1051 0, /* rightshift */
1052 1, /* size (0 = byte, 1 = short, 2 = long) */
1053 16, /* bitsize */
7619e7c7 1054 FALSE, /* pc_relative */
252b5132
RH
1055 0, /* bitpos */
1056 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1057 ppc_elf_unhandled_reloc, /* special_function */
1058 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1059 FALSE, /* partial_inplace */
252b5132
RH
1060 0, /* src_mask */
1061 0xffff, /* dst_mask */
b34976b6 1062 FALSE), /* pcrel_offset */
252b5132 1063
7619e7c7
AM
1064 /* Like GOT_TLSLD16, but no overflow. */
1065 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1066 0, /* rightshift */
7619e7c7
AM
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1068 16, /* bitsize */
b34976b6 1069 FALSE, /* pc_relative */
252b5132
RH
1070 0, /* bitpos */
1071 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1072 ppc_elf_unhandled_reloc, /* special_function */
1073 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1074 FALSE, /* partial_inplace */
252b5132 1075 0, /* src_mask */
7619e7c7 1076 0xffff, /* dst_mask */
b34976b6 1077 FALSE), /* pcrel_offset */
252b5132 1078
7619e7c7
AM
1079 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1080 HOWTO (R_PPC_GOT_TLSLD16_HI,
1081 16, /* rightshift */
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1083 16, /* bitsize */
b34976b6 1084 FALSE, /* pc_relative */
252b5132
RH
1085 0, /* bitpos */
1086 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1087 ppc_elf_unhandled_reloc, /* special_function */
1088 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1089 FALSE, /* partial_inplace */
252b5132 1090 0, /* src_mask */
7619e7c7 1091 0xffff, /* dst_mask */
b34976b6 1092 FALSE), /* pcrel_offset */
252b5132 1093
7619e7c7
AM
1094 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSLD16_HA,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc, /* special_function */
1103 "R_PPC_GOT_TLSLD16_HA", /* name */
1104 FALSE, /* partial_inplace */
1105 0, /* src_mask */
1106 0xffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1108
1109 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1110 the offset to the entry. */
1111 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1112 0, /* rightshift */
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 16, /* bitsize */
b34976b6 1115 FALSE, /* pc_relative */
252b5132
RH
1116 0, /* bitpos */
1117 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1118 ppc_elf_unhandled_reloc, /* special_function */
1119 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1120 FALSE, /* partial_inplace */
252b5132
RH
1121 0, /* src_mask */
1122 0xffff, /* dst_mask */
b34976b6 1123 FALSE), /* pcrel_offset */
252b5132 1124
7619e7c7
AM
1125 /* Like GOT_DTPREL16, but no overflow. */
1126 HOWTO (R_PPC_GOT_DTPREL16_LO,
1127 0, /* rightshift */
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 ppc_elf_unhandled_reloc, /* special_function */
1134 "R_PPC_GOT_DTPREL16_LO", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
7619e7c7
AM
1140 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1141 HOWTO (R_PPC_GOT_DTPREL16_HI,
1142 16, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1144 16, /* bitsize */
1145 FALSE, /* pc_relative */
1146 0, /* bitpos */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 ppc_elf_unhandled_reloc, /* special_function */
1149 "R_PPC_GOT_DTPREL16_HI", /* name */
1150 FALSE, /* partial_inplace */
1151 0, /* src_mask */
1152 0xffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
252b5132 1154
7619e7c7
AM
1155 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1156 HOWTO (R_PPC_GOT_DTPREL16_HA,
1157 16, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1159 16, /* bitsize */
1160 FALSE, /* pc_relative */
1161 0, /* bitpos */
1162 complain_overflow_dont, /* complain_on_overflow */
1163 ppc_elf_unhandled_reloc, /* special_function */
1164 "R_PPC_GOT_DTPREL16_HA", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
c3668558 1169
7619e7c7
AM
1170 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1171 offset to the entry. */
1172 HOWTO (R_PPC_GOT_TPREL16,
1173 0, /* rightshift */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1175 16, /* bitsize */
1176 FALSE, /* pc_relative */
1177 0, /* bitpos */
1178 complain_overflow_signed, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc, /* special_function */
1180 "R_PPC_GOT_TPREL16", /* name */
1181 FALSE, /* partial_inplace */
1182 0, /* src_mask */
1183 0xffff, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1185
1186 /* Like GOT_TPREL16, but no overflow. */
1187 HOWTO (R_PPC_GOT_TPREL16_LO,
1188 0, /* rightshift */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 ppc_elf_unhandled_reloc, /* special_function */
1195 "R_PPC_GOT_TPREL16_LO", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1202 HOWTO (R_PPC_GOT_TPREL16_HI,
1203 16, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1205 16, /* bitsize */
1206 FALSE, /* pc_relative */
1207 0, /* bitpos */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 ppc_elf_unhandled_reloc, /* special_function */
1210 "R_PPC_GOT_TPREL16_HI", /* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0xffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1217 HOWTO (R_PPC_GOT_TPREL16_HA,
1218 16, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1220 16, /* bitsize */
1221 FALSE, /* pc_relative */
1222 0, /* bitpos */
1223 complain_overflow_dont, /* complain_on_overflow */
1224 ppc_elf_unhandled_reloc, /* special_function */
1225 "R_PPC_GOT_TPREL16_HA", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0xffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* The remaining relocs are from the Embedded ELF ABI, and are not
1232 in the SVR4 ELF ABI. */
1233
1234 /* 32 bit value resulting from the addend minus the symbol. */
1235 HOWTO (R_PPC_EMB_NADDR32, /* type */
1236 0, /* rightshift */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 32, /* bitsize */
1239 FALSE, /* pc_relative */
1240 0, /* bitpos */
86c95733 1241 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1242 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1243 "R_PPC_EMB_NADDR32", /* name */
1244 FALSE, /* partial_inplace */
1245 0, /* src_mask */
1246 0xffffffff, /* dst_mask */
1247 FALSE), /* pcrel_offset */
1248
1249 /* 16 bit value resulting from the addend minus the symbol. */
1250 HOWTO (R_PPC_EMB_NADDR16, /* type */
1251 0, /* rightshift */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1253 16, /* bitsize */
1254 FALSE, /* pc_relative */
1255 0, /* bitpos */
86c95733 1256 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1257 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1258 "R_PPC_EMB_NADDR16", /* name */
1259 FALSE, /* partial_inplace */
1260 0, /* src_mask */
1261 0xffff, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1263
1264 /* 16 bit value resulting from the addend minus the symbol. */
1265 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1266 0, /* rightshift */
1267 1, /* size (0 = byte, 1 = short, 2 = long) */
1268 16, /* bitsize */
1269 FALSE, /* pc_relative */
1270 0, /* bitpos */
1271 complain_overflow_dont,/* complain_on_overflow */
3ce51288 1272 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1273 "R_PPC_EMB_ADDR16_LO", /* name */
1274 FALSE, /* partial_inplace */
1275 0, /* src_mask */
1276 0xffff, /* dst_mask */
1277 FALSE), /* pcrel_offset */
1278
1279 /* The high order 16 bits of the addend minus the symbol. */
1280 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1281 16, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 16, /* bitsize */
1284 FALSE, /* pc_relative */
1285 0, /* bitpos */
1286 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1287 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1288 "R_PPC_EMB_NADDR16_HI", /* name */
1289 FALSE, /* partial_inplace */
1290 0, /* src_mask */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1293
1294 /* The high order 16 bits of the result of the addend minus the address,
1295 plus 1 if the contents of the low 16 bits, treated as a signed number,
1296 is negative. */
1297 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1298 16, /* rightshift */
1299 1, /* size (0 = byte, 1 = short, 2 = long) */
1300 16, /* bitsize */
1301 FALSE, /* pc_relative */
1302 0, /* bitpos */
1303 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1304 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1305 "R_PPC_EMB_NADDR16_HA", /* name */
1306 FALSE, /* partial_inplace */
1307 0, /* src_mask */
1308 0xffff, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1310
1311 /* 16 bit value resulting from allocating a 4 byte word to hold an
1312 address in the .sdata section, and returning the offset from
1313 _SDA_BASE_ for that relocation. */
1314 HOWTO (R_PPC_EMB_SDAI16, /* type */
1315 0, /* rightshift */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 16, /* bitsize */
1318 FALSE, /* pc_relative */
1319 0, /* bitpos */
bd6c6e2b 1320 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1321 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1322 "R_PPC_EMB_SDAI16", /* name */
1323 FALSE, /* partial_inplace */
1324 0, /* src_mask */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* 16 bit value resulting from allocating a 4 byte word to hold an
1329 address in the .sdata2 section, and returning the offset from
1330 _SDA2_BASE_ for that relocation. */
1331 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1332 0, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
bd6c6e2b 1337 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1338 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1339 "R_PPC_EMB_SDA2I16", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1346 small data items. */
1347 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1348 0, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1354 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1355 "R_PPC_EMB_SDA2REL", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1362 signed offset from the appropriate base, and filling in the register
1363 field with the appropriate register (0, 2, or 13). */
1364 HOWTO (R_PPC_EMB_SDA21, /* type */
1365 0, /* rightshift */
1366 2, /* size (0 = byte, 1 = short, 2 = long) */
1367 16, /* bitsize */
1368 FALSE, /* pc_relative */
1369 0, /* bitpos */
1370 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1371 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1372 "R_PPC_EMB_SDA21", /* name */
1373 FALSE, /* partial_inplace */
1374 0, /* src_mask */
1375 0xffff, /* dst_mask */
1376 FALSE), /* pcrel_offset */
1377
1378 /* Relocation not handled: R_PPC_EMB_MRKREF */
1379 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1380 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1382 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1383 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1384
1385 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1386 in the 16 bit signed offset from the appropriate base, and filling in the
1387 register field with the appropriate register (0, 2, or 13). */
1388 HOWTO (R_PPC_EMB_RELSDA, /* type */
1389 0, /* rightshift */
1390 1, /* size (0 = byte, 1 = short, 2 = long) */
1391 16, /* bitsize */
ddfd6795 1392 FALSE, /* pc_relative */
25dbc73a
AM
1393 0, /* bitpos */
1394 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1395 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1396 "R_PPC_EMB_RELSDA", /* name */
1397 FALSE, /* partial_inplace */
1398 0, /* src_mask */
1399 0xffff, /* dst_mask */
1400 FALSE), /* pcrel_offset */
1401
b9c361e0
JL
1402 /* A relative 8 bit branch. */
1403 HOWTO (R_PPC_VLE_REL8, /* type */
1404 1, /* rightshift */
1405 1, /* size (0 = byte, 1 = short, 2 = long) */
1406 8, /* bitsize */
1407 TRUE, /* pc_relative */
1408 0, /* bitpos */
1409 complain_overflow_signed, /* complain_on_overflow */
1410 bfd_elf_generic_reloc, /* special_function */
1411 "R_PPC_VLE_REL8", /* name */
1412 FALSE, /* partial_inplace */
1413 0, /* src_mask */
1414 0xff, /* dst_mask */
1415 TRUE), /* pcrel_offset */
68ffbac6 1416
b9c361e0
JL
1417 /* A relative 15 bit branch. */
1418 HOWTO (R_PPC_VLE_REL15, /* type */
1419 1, /* rightshift */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 15, /* bitsize */
1422 TRUE, /* pc_relative */
1423 1, /* bitpos */
1424 complain_overflow_signed, /* complain_on_overflow */
1425 bfd_elf_generic_reloc, /* special_function */
1426 "R_PPC_VLE_REL15", /* name */
1427 FALSE, /* partial_inplace */
1428 0, /* src_mask */
dfdaec14 1429 0xfffe, /* dst_mask */
b9c361e0
JL
1430 TRUE), /* pcrel_offset */
1431
68ffbac6 1432 /* A relative 24 bit branch. */
b9c361e0
JL
1433 HOWTO (R_PPC_VLE_REL24, /* type */
1434 1, /* rightshift */
1435 2, /* size (0 = byte, 1 = short, 2 = long) */
1436 24, /* bitsize */
1437 TRUE, /* pc_relative */
1438 1, /* bitpos */
1439 complain_overflow_signed, /* complain_on_overflow */
1440 bfd_elf_generic_reloc, /* special_function */
1441 "R_PPC_VLE_REL24", /* name */
1442 FALSE, /* partial_inplace */
1443 0, /* src_mask */
1444 0x1fffffe, /* dst_mask */
1445 TRUE), /* pcrel_offset */
1446
1447 /* The 16 LSBS in split16a format. */
1448 HOWTO (R_PPC_VLE_LO16A, /* type */
1449 0, /* rightshift */
1450 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1451 16, /* bitsize */
bdaacd3a 1452 FALSE, /* pc_relative */
b9c361e0 1453 0, /* bitpos */
86c95733 1454 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1455 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1456 "R_PPC_VLE_LO16A", /* name */
1457 FALSE, /* partial_inplace */
1458 0, /* src_mask */
08dc996f 1459 0x1f07ff, /* dst_mask */
b9c361e0
JL
1460 FALSE), /* pcrel_offset */
1461
1462 /* The 16 LSBS in split16d format. */
1463 HOWTO (R_PPC_VLE_LO16D, /* type */
1464 0, /* rightshift */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1466 16, /* bitsize */
b9c361e0
JL
1467 FALSE, /* pc_relative */
1468 0, /* bitpos */
86c95733 1469 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1470 ppc_elf_unhandled_reloc, /* special_function */
1471 "R_PPC_VLE_LO16D", /* name */
b9c361e0
JL
1472 FALSE, /* partial_inplace */
1473 0, /* src_mask */
08dc996f 1474 0x1f007ff, /* dst_mask */
b9c361e0
JL
1475 FALSE), /* pcrel_offset */
1476
1477 /* Bits 16-31 split16a format. */
1478 HOWTO (R_PPC_VLE_HI16A, /* type */
86c95733 1479 16, /* rightshift */
b9c361e0 1480 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1481 16, /* bitsize */
b9c361e0
JL
1482 FALSE, /* pc_relative */
1483 0, /* bitpos */
86c95733 1484 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1485 ppc_elf_unhandled_reloc, /* special_function */
1486 "R_PPC_VLE_HI16A", /* name */
b9c361e0
JL
1487 FALSE, /* partial_inplace */
1488 0, /* src_mask */
08dc996f 1489 0x1f07ff, /* dst_mask */
b9c361e0
JL
1490 FALSE), /* pcrel_offset */
1491
1492 /* Bits 16-31 split16d format. */
1493 HOWTO (R_PPC_VLE_HI16D, /* type */
86c95733 1494 16, /* rightshift */
b9c361e0 1495 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1496 16, /* bitsize */
b9c361e0
JL
1497 FALSE, /* pc_relative */
1498 0, /* bitpos */
86c95733 1499 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1500 ppc_elf_unhandled_reloc, /* special_function */
1501 "R_PPC_VLE_HI16D", /* name */
b9c361e0
JL
1502 FALSE, /* partial_inplace */
1503 0, /* src_mask */
08dc996f 1504 0x1f007ff, /* dst_mask */
b9c361e0
JL
1505 FALSE), /* pcrel_offset */
1506
1507 /* Bits 16-31 (High Adjusted) in split16a format. */
1508 HOWTO (R_PPC_VLE_HA16A, /* type */
86c95733 1509 16, /* rightshift */
b9c361e0 1510 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1511 16, /* bitsize */
b9c361e0
JL
1512 FALSE, /* pc_relative */
1513 0, /* bitpos */
86c95733 1514 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1515 ppc_elf_unhandled_reloc, /* special_function */
1516 "R_PPC_VLE_HA16A", /* name */
b9c361e0
JL
1517 FALSE, /* partial_inplace */
1518 0, /* src_mask */
08dc996f 1519 0x1f07ff, /* dst_mask */
b9c361e0
JL
1520 FALSE), /* pcrel_offset */
1521
1522 /* Bits 16-31 (High Adjusted) in split16d format. */
1523 HOWTO (R_PPC_VLE_HA16D, /* type */
86c95733 1524 16, /* rightshift */
b9c361e0 1525 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1526 16, /* bitsize */
b9c361e0
JL
1527 FALSE, /* pc_relative */
1528 0, /* bitpos */
86c95733 1529 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1530 ppc_elf_unhandled_reloc, /* special_function */
1531 "R_PPC_VLE_HA16D", /* name */
b9c361e0
JL
1532 FALSE, /* partial_inplace */
1533 0, /* src_mask */
08dc996f 1534 0x1f007ff, /* dst_mask */
b9c361e0
JL
1535 FALSE), /* pcrel_offset */
1536
86c95733
AM
1537 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1538 instructions. If the register base is 0 then the linker changes
1539 the e_add16i to an e_li instruction. */
1540 HOWTO (R_PPC_VLE_SDA21, /* type */
b9c361e0
JL
1541 0, /* rightshift */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1543 16, /* bitsize */
b9c361e0
JL
1544 FALSE, /* pc_relative */
1545 0, /* bitpos */
86c95733 1546 complain_overflow_signed, /* complain_on_overflow */
3ce51288
AM
1547 ppc_elf_unhandled_reloc, /* special_function */
1548 "R_PPC_VLE_SDA21", /* name */
b9c361e0
JL
1549 FALSE, /* partial_inplace */
1550 0, /* src_mask */
1551 0xffff, /* dst_mask */
1552 FALSE), /* pcrel_offset */
1553
86c95733 1554 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
b9c361e0
JL
1555 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1556 0, /* rightshift */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1558 16, /* bitsize */
b9c361e0
JL
1559 FALSE, /* pc_relative */
1560 0, /* bitpos */
86c95733 1561 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1562 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1563 "R_PPC_VLE_SDA21_LO", /* name */
1564 FALSE, /* partial_inplace */
1565 0, /* src_mask */
86c95733 1566 0xffff, /* dst_mask */
b9c361e0
JL
1567 FALSE), /* pcrel_offset */
1568
1569 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1570 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1571 0, /* rightshift */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1573 16, /* bitsize */
b9c361e0
JL
1574 FALSE, /* pc_relative */
1575 0, /* bitpos */
3ce51288
AM
1576 complain_overflow_dont, /* complain_on_overflow */
1577 ppc_elf_unhandled_reloc, /* special_function */
1578 "R_PPC_VLE_SDAREL_LO16A", /* name */
b9c361e0
JL
1579 FALSE, /* partial_inplace */
1580 0, /* src_mask */
08dc996f 1581 0x1f07ff, /* dst_mask */
b9c361e0
JL
1582 FALSE), /* pcrel_offset */
1583
1584 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
b9c361e0
JL
1585 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1586 0, /* rightshift */
1587 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1588 16, /* bitsize */
b9c361e0
JL
1589 FALSE, /* pc_relative */
1590 0, /* bitpos */
3ce51288
AM
1591 complain_overflow_dont, /* complain_on_overflow */
1592 ppc_elf_unhandled_reloc, /* special_function */
1593 "R_PPC_VLE_SDAREL_LO16D", /* name */
b9c361e0
JL
1594 FALSE, /* partial_inplace */
1595 0, /* src_mask */
08dc996f 1596 0x1f007ff, /* dst_mask */
b9c361e0
JL
1597 FALSE), /* pcrel_offset */
1598
1599 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
3ce51288 1600 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
86c95733 1601 16, /* rightshift */
b9c361e0 1602 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1603 16, /* bitsize */
b9c361e0
JL
1604 FALSE, /* pc_relative */
1605 0, /* bitpos */
3ce51288
AM
1606 complain_overflow_dont, /* complain_on_overflow */
1607 ppc_elf_unhandled_reloc, /* special_function */
1608 "R_PPC_VLE_SDAREL_HI16A", /* name */
b9c361e0
JL
1609 FALSE, /* partial_inplace */
1610 0, /* src_mask */
08dc996f 1611 0x1f07ff, /* dst_mask */
b9c361e0
JL
1612 FALSE), /* pcrel_offset */
1613
1614 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
3ce51288 1615 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
86c95733 1616 16, /* rightshift */
b9c361e0 1617 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1618 16, /* bitsize */
b9c361e0
JL
1619 FALSE, /* pc_relative */
1620 0, /* bitpos */
3ce51288
AM
1621 complain_overflow_dont, /* complain_on_overflow */
1622 ppc_elf_unhandled_reloc, /* special_function */
1623 "R_PPC_VLE_SDAREL_HI16D", /* name */
b9c361e0
JL
1624 FALSE, /* partial_inplace */
1625 0, /* src_mask */
08dc996f 1626 0x1f007ff, /* dst_mask */
b9c361e0
JL
1627 FALSE), /* pcrel_offset */
1628
1629 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
3ce51288 1630 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
86c95733 1631 16, /* rightshift */
b9c361e0 1632 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1633 16, /* bitsize */
b9c361e0
JL
1634 FALSE, /* pc_relative */
1635 0, /* bitpos */
3ce51288
AM
1636 complain_overflow_dont, /* complain_on_overflow */
1637 ppc_elf_unhandled_reloc, /* special_function */
1638 "R_PPC_VLE_SDAREL_HA16A", /* name */
b9c361e0
JL
1639 FALSE, /* partial_inplace */
1640 0, /* src_mask */
08dc996f 1641 0x1f07ff, /* dst_mask */
b9c361e0
JL
1642 FALSE), /* pcrel_offset */
1643
1644 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
3ce51288 1645 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
86c95733 1646 16, /* rightshift */
b9c361e0 1647 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1648 16, /* bitsize */
b9c361e0
JL
1649 FALSE, /* pc_relative */
1650 0, /* bitpos */
3ce51288
AM
1651 complain_overflow_dont, /* complain_on_overflow */
1652 ppc_elf_unhandled_reloc, /* special_function */
1653 "R_PPC_VLE_SDAREL_HA16D", /* name */
b9c361e0
JL
1654 FALSE, /* partial_inplace */
1655 0, /* src_mask */
08dc996f 1656 0x1f007ff, /* dst_mask */
b9c361e0
JL
1657 FALSE), /* pcrel_offset */
1658
e054468f
AM
1659 HOWTO (R_PPC_IRELATIVE, /* type */
1660 0, /* rightshift */
1661 2, /* size (0 = byte, 1 = short, 2 = long) */
1662 32, /* bitsize */
1663 FALSE, /* pc_relative */
1664 0, /* bitpos */
86c95733 1665 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1666 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1667 "R_PPC_IRELATIVE", /* name */
1668 FALSE, /* partial_inplace */
1669 0, /* src_mask */
1670 0xffffffff, /* dst_mask */
1671 FALSE), /* pcrel_offset */
1672
d7128ce4
AM
1673 /* A 16 bit relative relocation. */
1674 HOWTO (R_PPC_REL16, /* type */
1675 0, /* rightshift */
1676 1, /* size (0 = byte, 1 = short, 2 = long) */
1677 16, /* bitsize */
1678 TRUE, /* pc_relative */
1679 0, /* bitpos */
86c95733 1680 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1681 bfd_elf_generic_reloc, /* special_function */
1682 "R_PPC_REL16", /* name */
1683 FALSE, /* partial_inplace */
1684 0, /* src_mask */
1685 0xffff, /* dst_mask */
1686 TRUE), /* pcrel_offset */
1687
1688 /* A 16 bit relative relocation without overflow. */
1689 HOWTO (R_PPC_REL16_LO, /* type */
1690 0, /* rightshift */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1692 16, /* bitsize */
1693 TRUE, /* pc_relative */
1694 0, /* bitpos */
1695 complain_overflow_dont,/* complain_on_overflow */
1696 bfd_elf_generic_reloc, /* special_function */
1697 "R_PPC_REL16_LO", /* name */
1698 FALSE, /* partial_inplace */
1699 0, /* src_mask */
1700 0xffff, /* dst_mask */
1701 TRUE), /* pcrel_offset */
1702
1703 /* The high order 16 bits of a relative address. */
1704 HOWTO (R_PPC_REL16_HI, /* type */
1705 16, /* rightshift */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 16, /* bitsize */
1708 TRUE, /* pc_relative */
1709 0, /* bitpos */
1710 complain_overflow_dont, /* complain_on_overflow */
1711 bfd_elf_generic_reloc, /* special_function */
1712 "R_PPC_REL16_HI", /* name */
1713 FALSE, /* partial_inplace */
1714 0, /* src_mask */
1715 0xffff, /* dst_mask */
1716 TRUE), /* pcrel_offset */
1717
1718 /* The high order 16 bits of a relative address, plus 1 if the contents of
1719 the low 16 bits, treated as a signed number, is negative. */
1720 HOWTO (R_PPC_REL16_HA, /* type */
1721 16, /* rightshift */
1722 1, /* size (0 = byte, 1 = short, 2 = long) */
1723 16, /* bitsize */
1724 TRUE, /* pc_relative */
1725 0, /* bitpos */
1726 complain_overflow_dont, /* complain_on_overflow */
1727 ppc_elf_addr16_ha_reloc, /* special_function */
1728 "R_PPC_REL16_HA", /* name */
1729 FALSE, /* partial_inplace */
1730 0, /* src_mask */
1731 0xffff, /* dst_mask */
1732 TRUE), /* pcrel_offset */
1733
a680de9a
PB
1734 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1735 HOWTO (R_PPC_REL16DX_HA, /* type */
1736 16, /* rightshift */
1737 2, /* size (0 = byte, 1 = short, 2 = long) */
1738 16, /* bitsize */
1739 TRUE, /* pc_relative */
1740 0, /* bitpos */
1741 complain_overflow_signed, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc, /* special_function */
1743 "R_PPC_REL16DX_HA", /* name */
1744 FALSE, /* partial_inplace */
1745 0, /* src_mask */
1746 0x1fffc1, /* dst_mask */
1747 TRUE), /* pcrel_offset */
1748
25dbc73a
AM
1749 /* GNU extension to record C++ vtable hierarchy. */
1750 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1751 0, /* rightshift */
1752 0, /* size (0 = byte, 1 = short, 2 = long) */
1753 0, /* bitsize */
1754 FALSE, /* pc_relative */
1755 0, /* bitpos */
1756 complain_overflow_dont, /* complain_on_overflow */
1757 NULL, /* special_function */
1758 "R_PPC_GNU_VTINHERIT", /* name */
1759 FALSE, /* partial_inplace */
1760 0, /* src_mask */
1761 0, /* dst_mask */
1762 FALSE), /* pcrel_offset */
1763
1764 /* GNU extension to record C++ vtable member usage. */
1765 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1766 0, /* rightshift */
1767 0, /* size (0 = byte, 1 = short, 2 = long) */
1768 0, /* bitsize */
1769 FALSE, /* pc_relative */
1770 0, /* bitpos */
1771 complain_overflow_dont, /* complain_on_overflow */
1772 NULL, /* special_function */
1773 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1774 FALSE, /* partial_inplace */
1775 0, /* src_mask */
25dbc73a 1776 0, /* dst_mask */
7619e7c7
AM
1777 FALSE), /* pcrel_offset */
1778
25dbc73a
AM
1779 /* Phony reloc to handle AIX style TOC entries. */
1780 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1781 0, /* rightshift */
1782 1, /* size (0 = byte, 1 = short, 2 = long) */
1783 16, /* bitsize */
1784 FALSE, /* pc_relative */
1785 0, /* bitpos */
25dbc73a 1786 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1787 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1788 "R_PPC_TOC16", /* name */
7619e7c7
AM
1789 FALSE, /* partial_inplace */
1790 0, /* src_mask */
1791 0xffff, /* dst_mask */
1792 FALSE), /* pcrel_offset */
25dbc73a 1793};
70a38d42
SDJ
1794
1795/* External 32-bit PPC structure for PRPSINFO. This structure is
1796 ABI-defined, thus we choose to use char arrays here in order to
1797 avoid dealing with different types in different architectures.
1798
1799 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1800 most non-PPC architectures use `short int'.
1801
1802 This structure will ultimately be written in the corefile's note
1803 section, as the PRPSINFO. */
1804
1805struct elf_external_ppc_linux_prpsinfo32
1806 {
1807 char pr_state; /* Numeric process state. */
1808 char pr_sname; /* Char for pr_state. */
1809 char pr_zomb; /* Zombie. */
1810 char pr_nice; /* Nice val. */
1811 char pr_flag[4]; /* Flags. */
1812 char pr_uid[4];
1813 char pr_gid[4];
1814 char pr_pid[4];
1815 char pr_ppid[4];
1816 char pr_pgrp[4];
1817 char pr_sid[4];
1818 char pr_fname[16]; /* Filename of executable. */
1819 char pr_psargs[80]; /* Initial part of arg list. */
1820 };
1821
aeb70569
AM
1822/* Helper function to copy an elf_internal_linux_prpsinfo in host
1823 endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */
70a38d42 1824
aeb70569
AM
1825static inline void
1826swap_ppc_linux_prpsinfo32_out (bfd *obfd,
1827 const struct elf_internal_linux_prpsinfo *from,
1828 struct elf_external_ppc_linux_prpsinfo32 *to)
1829{
1830 bfd_put_8 (obfd, from->pr_state, &to->pr_state);
1831 bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
1832 bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
1833 bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
1834 bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
1835 bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
1836 bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
1837 bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
1838 bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
1839 bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
1840 bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
1841 strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
1842 strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
1843}
25dbc73a
AM
1844\f
1845/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1846
1847static void
1848ppc_elf_howto_init (void)
1849{
1850 unsigned int i, type;
1851
1852 for (i = 0;
1853 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1854 i++)
1855 {
1856 type = ppc_elf_howto_raw[i].type;
1857 if (type >= (sizeof (ppc_elf_howto_table)
1858 / sizeof (ppc_elf_howto_table[0])))
1859 abort ();
1860 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1861 }
1862}
1863
1864static reloc_howto_type *
1865ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1866 bfd_reloc_code_real_type code)
1867{
1868 enum elf_ppc_reloc_type r;
1869
1870 /* Initialize howto table if not already done. */
1871 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1872 ppc_elf_howto_init ();
1873
1874 switch (code)
1875 {
1876 default:
1877 return NULL;
1878
1879 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1880 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1881 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1882 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1883 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1884 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1885 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1886 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1887 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1888 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1889 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1890 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1891 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1892 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1893 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1894 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1895 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1896 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1897 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1898 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1899 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1900 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1901 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1902 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1903 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1904 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1905 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1906 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1907 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1908 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1909 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1910 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1911 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1912 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1913 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1914 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1915 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1916 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1917 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1918 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1919 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1920 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1921 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1922 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1923 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1924 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1925 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1926 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1927 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1928 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1929 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1930 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1931 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1932 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1933 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1934 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1935 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1936 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1937 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1938 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1939 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1940 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1941 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1942 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1943 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1944 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1945 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1946 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1947 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1948 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1949 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1950 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1951 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1952 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1953 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1954 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1955 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1956 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1957 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1958 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1959 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1960 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1961 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1962 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1963 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1964 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1965 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1966 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1967 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1968 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1969 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1970 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1971 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1972 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1973 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1974 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1975 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1976 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1977 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1978 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1979 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1980 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1981 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1982 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1983 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1984 r = R_PPC_VLE_SDAREL_LO16A;
1985 break;
1986 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1987 r = R_PPC_VLE_SDAREL_LO16D;
1988 break;
1989 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1990 r = R_PPC_VLE_SDAREL_HI16A;
1991 break;
1992 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1993 r = R_PPC_VLE_SDAREL_HI16D;
1994 break;
1995 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1996 r = R_PPC_VLE_SDAREL_HA16A;
1997 break;
1998 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1999 r = R_PPC_VLE_SDAREL_HA16D;
2000 break;
d7128ce4
AM
2001 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2002 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2003 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2004 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
a680de9a 2005 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
2006 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2007 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2008 }
2009
2010 return ppc_elf_howto_table[r];
2011};
2012
157090f7
AM
2013static reloc_howto_type *
2014ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2015 const char *r_name)
2016{
2017 unsigned int i;
2018
2019 for (i = 0;
2020 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2021 i++)
2022 if (ppc_elf_howto_raw[i].name != NULL
2023 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2024 return &ppc_elf_howto_raw[i];
2025
2026 return NULL;
2027}
2028
25dbc73a
AM
2029/* Set the howto pointer for a PowerPC ELF reloc. */
2030
2031static void
2032ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2033 arelent *cache_ptr,
2034 Elf_Internal_Rela *dst)
2035{
cd21f5da
NC
2036 unsigned int r_type;
2037
25dbc73a
AM
2038 /* Initialize howto table if not already done. */
2039 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2040 ppc_elf_howto_init ();
2041
cd21f5da
NC
2042 r_type = ELF32_R_TYPE (dst->r_info);
2043 if (r_type >= R_PPC_max)
2044 {
695344c0 2045 /* xgettext:c-format */
4eca0228
AM
2046 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2047 abfd, r_type);
cd21f5da
NC
2048 bfd_set_error (bfd_error_bad_value);
2049 r_type = R_PPC_NONE;
2050 }
2051 cache_ptr->howto = ppc_elf_howto_table[r_type];
375de94a
AM
2052
2053 /* Just because the above assert didn't trigger doesn't mean that
2054 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2055 if (!cache_ptr->howto)
2056 {
695344c0 2057 /* xgettext:c-format */
4eca0228
AM
2058 _bfd_error_handler (_("%B: invalid relocation type %d"),
2059 abfd, r_type);
375de94a
AM
2060 bfd_set_error (bfd_error_bad_value);
2061
2062 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2063 }
25dbc73a
AM
2064}
2065
d7128ce4 2066/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2067
2068static bfd_reloc_status_type
2069ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2070 arelent *reloc_entry,
2071 asymbol *symbol,
2072 void *data ATTRIBUTE_UNUSED,
2073 asection *input_section,
2074 bfd *output_bfd,
2075 char **error_message ATTRIBUTE_UNUSED)
2076{
a680de9a
PB
2077 enum elf_ppc_reloc_type r_type;
2078 long insn;
2079 bfd_size_type octets;
2080 bfd_vma value;
25dbc73a
AM
2081
2082 if (output_bfd != NULL)
2083 {
2084 reloc_entry->address += input_section->output_offset;
2085 return bfd_reloc_ok;
2086 }
2087
a680de9a
PB
2088 reloc_entry->addend += 0x8000;
2089 r_type = reloc_entry->howto->type;
2090 if (r_type != R_PPC_REL16DX_HA)
2091 return bfd_reloc_continue;
2092
2093 value = 0;
2094 if (!bfd_is_com_section (symbol->section))
2095 value = symbol->value;
2096 value += (reloc_entry->addend
2097 + symbol->section->output_offset
2098 + symbol->section->output_section->vma);
2099 value -= (reloc_entry->address
2100 + input_section->output_offset
2101 + input_section->output_section->vma);
2102 value >>= 16;
2103
2104 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2105 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2106 insn &= ~0x1fffc1;
2107 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2108 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2109 return bfd_reloc_ok;
25dbc73a
AM
2110}
2111
2112static bfd_reloc_status_type
2113ppc_elf_unhandled_reloc (bfd *abfd,
2114 arelent *reloc_entry,
2115 asymbol *symbol,
2116 void *data,
2117 asection *input_section,
2118 bfd *output_bfd,
2119 char **error_message)
2120{
2121 /* If this is a relocatable link (output_bfd test tells us), just
2122 call the generic function. Any adjustment will be done at final
2123 link time. */
2124 if (output_bfd != NULL)
2125 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2126 input_section, output_bfd, error_message);
2127
2128 if (error_message != NULL)
2129 {
2130 static char buf[60];
2131 sprintf (buf, _("generic linker can't handle %s"),
2132 reloc_entry->howto->name);
2133 *error_message = buf;
2134 }
2135 return bfd_reloc_dangerous;
2136}
2137\f
2138/* Sections created by the linker. */
2139
2140typedef struct elf_linker_section
2141{
c9a2f333 2142 /* Pointer to the bfd section. */
25dbc73a 2143 asection *section;
c9a2f333
AM
2144 /* Section name. */
2145 const char *name;
2146 /* Associated bss section name. */
2147 const char *bss_name;
2148 /* Associated symbol name. */
2149 const char *sym_name;
046183de
AM
2150 /* Associated symbol. */
2151 struct elf_link_hash_entry *sym;
25dbc73a
AM
2152} elf_linker_section_t;
2153
2154/* Linked list of allocated pointer entries. This hangs off of the
2155 symbol lists, and provides allows us to return different pointers,
2156 based on different addend's. */
2157
2158typedef struct elf_linker_section_pointers
2159{
2160 /* next allocated pointer for this symbol */
2161 struct elf_linker_section_pointers *next;
2162 /* offset of pointer from beginning of section */
2163 bfd_vma offset;
2164 /* addend used */
2165 bfd_vma addend;
2166 /* which linker section this is */
2167 elf_linker_section_t *lsect;
25dbc73a
AM
2168} elf_linker_section_pointers_t;
2169
2170struct ppc_elf_obj_tdata
2171{
2172 struct elf_obj_tdata elf;
2173
2174 /* A mapping from local symbols to offsets into the various linker
2175 sections added. This is index by the symbol index. */
2176 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2177
2178 /* Flags used to auto-detect plt type. */
2179 unsigned int makes_plt_call : 1;
2180 unsigned int has_rel16 : 1;
25dbc73a
AM
2181};
2182
2183#define ppc_elf_tdata(bfd) \
2184 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2185
25dbc73a
AM
2186#define elf_local_ptr_offsets(bfd) \
2187 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2188
0c8d6e5c
AM
2189#define is_ppc_elf(bfd) \
2190 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2191 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2192
25dbc73a 2193/* Override the generic function because we store some extras. */
7619e7c7 2194
25dbc73a
AM
2195static bfd_boolean
2196ppc_elf_mkobject (bfd *abfd)
2197{
0ffa91dd 2198 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2199 PPC32_ELF_DATA);
25dbc73a 2200}
7619e7c7 2201
14b57c7c
AM
2202/* When defaulting arch/mach, decode apuinfo to find a better match. */
2203
2204bfd_boolean
2205_bfd_elf_ppc_set_arch (bfd *abfd)
2206{
2207 unsigned long mach = 0;
2208 asection *s;
2209 unsigned char *contents;
2210
2211 if (abfd->arch_info->bits_per_word == 32
2212 && bfd_big_endian (abfd))
2213 {
2214
2215 for (s = abfd->sections; s != NULL; s = s->next)
2216 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2217 break;
2218 if (s != NULL)
2219 mach = bfd_mach_ppc_vle;
2220 }
2221
2222 if (mach == 0)
2223 {
2224 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2225 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2226 {
2227 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2228 unsigned int i;
2229
2230 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2231 {
2232 unsigned int val = bfd_get_32 (abfd, contents + i);
2233 switch (val >> 16)
2234 {
2235 case PPC_APUINFO_PMR:
2236 case PPC_APUINFO_RFMCI:
2237 if (mach == 0)
2238 mach = bfd_mach_ppc_titan;
2239 break;
2240
2241 case PPC_APUINFO_ISEL:
2242 case PPC_APUINFO_CACHELCK:
2243 if (mach == bfd_mach_ppc_titan)
2244 mach = bfd_mach_ppc_e500mc;
2245 break;
2246
2247 case PPC_APUINFO_SPE:
2248 case PPC_APUINFO_EFS:
2249 case PPC_APUINFO_BRLOCK:
2250 if (mach != bfd_mach_ppc_vle)
2251 mach = bfd_mach_ppc_e500;
8941017b 2252 break;
14b57c7c
AM
2253
2254 case PPC_APUINFO_VLE:
2255 mach = bfd_mach_ppc_vle;
2256 break;
2257
2258 default:
2259 mach = -1ul;
2260 }
2261 }
2262 free (contents);
2263 }
2264 }
2265
2266 if (mach != 0 && mach != -1ul)
2267 {
2268 const bfd_arch_info_type *arch;
2269
2270 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2271 if (arch->mach == mach)
2272 {
2273 abfd->arch_info = arch;
2274 break;
2275 }
2276 }
2277 return TRUE;
2278}
2279
25dbc73a 2280/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2281 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2282
25dbc73a
AM
2283static bfd_boolean
2284ppc_elf_object_p (bfd *abfd)
2285{
14b57c7c
AM
2286 if (!abfd->arch_info->the_default)
2287 return TRUE;
2288
2289 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2290 {
2291 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2292
25dbc73a
AM
2293 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2294 {
2295 /* Relies on arch after 64 bit default being 32 bit default. */
2296 abfd->arch_info = abfd->arch_info->next;
2297 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2298 }
2299 }
14b57c7c 2300 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2301}
7619e7c7 2302
25dbc73a 2303/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2304
25dbc73a
AM
2305static bfd_boolean
2306ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2307{
2308 BFD_ASSERT (!elf_flags_init (abfd)
2309 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2310
25dbc73a
AM
2311 elf_elfheader (abfd)->e_flags = flags;
2312 elf_flags_init (abfd) = TRUE;
2313 return TRUE;
2314}
2315
25dbc73a 2316/* Support for core dump NOTE sections. */
deaaf2f3 2317
b34976b6 2318static bfd_boolean
25dbc73a 2319ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2320{
25dbc73a
AM
2321 int offset;
2322 unsigned int size;
252b5132 2323
25dbc73a
AM
2324 switch (note->descsz)
2325 {
2326 default:
2327 return FALSE;
252b5132 2328
25dbc73a
AM
2329 case 268: /* Linux/PPC. */
2330 /* pr_cursig */
228e534f 2331 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2332
25dbc73a 2333 /* pr_pid */
228e534f 2334 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2335
25dbc73a
AM
2336 /* pr_reg */
2337 offset = 72;
2338 size = 192;
deaaf2f3 2339
25dbc73a
AM
2340 break;
2341 }
deaaf2f3 2342
25dbc73a
AM
2343 /* Make a ".reg/999" section. */
2344 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2345 size, note->descpos + offset);
2346}
252b5132 2347
25dbc73a
AM
2348static bfd_boolean
2349ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2350{
2351 switch (note->descsz)
deaaf2f3 2352 {
25dbc73a
AM
2353 default:
2354 return FALSE;
deaaf2f3 2355
25dbc73a 2356 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2357 elf_tdata (abfd)->core->pid
bc989cdc 2358 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2359 elf_tdata (abfd)->core->program
25dbc73a 2360 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2361 elf_tdata (abfd)->core->command
25dbc73a
AM
2362 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2363 }
9abc968f 2364
25dbc73a
AM
2365 /* Note that for some reason, a spurious space is tacked
2366 onto the end of the args in some (at least one anyway)
2367 implementations, so strip it off if it exists. */
70bccea4 2368
25dbc73a 2369 {
228e534f 2370 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2371 int n = strlen (command);
70bccea4 2372
25dbc73a
AM
2373 if (0 < n && command[n - 1] == ' ')
2374 command[n - 1] = '\0';
2375 }
deaaf2f3 2376
25dbc73a
AM
2377 return TRUE;
2378}
deaaf2f3 2379
70a38d42 2380char *
aeb70569
AM
2381elfcore_write_ppc_linux_prpsinfo32
2382 (bfd *abfd,
2383 char *buf,
2384 int *bufsiz,
2385 const struct elf_internal_linux_prpsinfo *prpsinfo)
70a38d42
SDJ
2386{
2387 struct elf_external_ppc_linux_prpsinfo32 data;
2388
aeb70569 2389 swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data);
70a38d42
SDJ
2390 return elfcore_write_note (abfd, buf, bufsiz,
2391 "CORE", NT_PRPSINFO, &data, sizeof (data));
2392}
2393
183e98be
AM
2394static char *
2395ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2396{
2397 switch (note_type)
2398 {
2399 default:
2400 return NULL;
2401
2402 case NT_PRPSINFO:
2403 {
2404 char data[128];
2405 va_list ap;
2406
2407 va_start (ap, note_type);
75cd47ed 2408 memset (data, 0, sizeof (data));
183e98be
AM
2409 strncpy (data + 32, va_arg (ap, const char *), 16);
2410 strncpy (data + 48, va_arg (ap, const char *), 80);
2411 va_end (ap);
2412 return elfcore_write_note (abfd, buf, bufsiz,
2413 "CORE", note_type, data, sizeof (data));
2414 }
2415
2416 case NT_PRSTATUS:
2417 {
2418 char data[268];
2419 va_list ap;
2420 long pid;
2421 int cursig;
2422 const void *greg;
2423
2424 va_start (ap, note_type);
2425 memset (data, 0, 72);
2426 pid = va_arg (ap, long);
2427 bfd_put_32 (abfd, pid, data + 24);
2428 cursig = va_arg (ap, int);
2429 bfd_put_16 (abfd, cursig, data + 12);
2430 greg = va_arg (ap, const void *);
2431 memcpy (data + 72, greg, 192);
2432 memset (data + 264, 0, 4);
2433 va_end (ap);
2434 return elfcore_write_note (abfd, buf, bufsiz,
2435 "CORE", note_type, data, sizeof (data));
2436 }
2437 }
2438}
2439
b9c361e0 2440static flagword
68ffbac6 2441ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2442{
2443
2444 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2445 return SHF_PPC_VLE;
2446
2447 return 0;
2448}
2449
25dbc73a
AM
2450/* Return address for Ith PLT stub in section PLT, for relocation REL
2451 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2452
25dbc73a
AM
2453static bfd_vma
2454ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2455 const asection *plt ATTRIBUTE_UNUSED,
2456 const arelent *rel)
2457{
2458 return rel->address;
2459}
deaaf2f3 2460
25dbc73a 2461/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2462 is called when bfd_section_from_shdr finds a section with an unknown
2463 type. */
deaaf2f3 2464
25dbc73a 2465static bfd_boolean
6dc132d9
L
2466ppc_elf_section_from_shdr (bfd *abfd,
2467 Elf_Internal_Shdr *hdr,
2468 const char *name,
2469 int shindex)
25dbc73a
AM
2470{
2471 asection *newsect;
2472 flagword flags;
d1c6de6f 2473
6dc132d9 2474 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2475 return FALSE;
deaaf2f3 2476
25dbc73a
AM
2477 newsect = hdr->bfd_section;
2478 flags = bfd_get_section_flags (abfd, newsect);
2479 if (hdr->sh_flags & SHF_EXCLUDE)
2480 flags |= SEC_EXCLUDE;
9abc968f 2481
25dbc73a
AM
2482 if (hdr->sh_type == SHT_ORDERED)
2483 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2484
25dbc73a
AM
2485 bfd_set_section_flags (abfd, newsect, flags);
2486 return TRUE;
2487}
2488
2489/* Set up any other section flags and such that may be necessary. */
2490
2491static bfd_boolean
2492ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2493 Elf_Internal_Shdr *shdr,
2494 asection *asect)
2495{
25dbc73a
AM
2496 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2497 shdr->sh_type = SHT_ORDERED;
2498
2499 return TRUE;
2500}
2501
2502/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2503 need to bump up the number of section headers. */
2504
2505static int
a6b96beb
AM
2506ppc_elf_additional_program_headers (bfd *abfd,
2507 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2508{
2509 asection *s;
2510 int ret = 0;
d1c6de6f 2511
25dbc73a
AM
2512 s = bfd_get_section_by_name (abfd, ".sbss2");
2513 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2514 ++ret;
d1c6de6f 2515
25dbc73a
AM
2516 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2517 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2518 ++ret;
deaaf2f3 2519
25dbc73a
AM
2520 return ret;
2521}
deaaf2f3 2522
68ffbac6 2523/* Modify the segment map for VLE executables. */
b9c361e0
JL
2524
2525bfd_boolean
2526ppc_elf_modify_segment_map (bfd *abfd,
2527 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2528{
f7d69005 2529 struct elf_segment_map *m;
b9c361e0
JL
2530
2531 /* At this point in the link, output sections have already been sorted by
2532 LMA and assigned to segments. All that is left to do is to ensure
2533 there is no mixing of VLE & non-VLE sections in a text segment.
2534 If we find that case, we split the segment.
2535 We maintain the original output section order. */
2536
12bd6957 2537 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2538 {
f7d69005
AM
2539 struct elf_segment_map *n;
2540 bfd_size_type amt;
2541 unsigned int j, k;
2542 unsigned int p_flags;
2543
2544 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2545 continue;
2546
f7d69005 2547 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2548 {
f7d69005
AM
2549 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2550 p_flags |= PF_W;
2551 if ((m->sections[j]->flags & SEC_CODE) != 0)
2552 {
2553 p_flags |= PF_X;
2554 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2555 p_flags |= PF_PPC_VLE;
2556 break;
2557 }
2558 }
2559 if (j != m->count)
2560 while (++j != m->count)
2561 {
2562 unsigned int p_flags1 = PF_R;
94caa966 2563
f7d69005
AM
2564 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2565 p_flags1 |= PF_W;
2566 if ((m->sections[j]->flags & SEC_CODE) != 0)
2567 {
2568 p_flags1 |= PF_X;
2569 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2570 p_flags1 |= PF_PPC_VLE;
2571 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2572 break;
2573 }
2574 p_flags |= p_flags1;
2575 }
2576 /* If we're splitting a segment which originally contained rw
2577 sections then those sections might now only be in one of the
2578 two parts. So always set p_flags if splitting, even if we
2579 are being called for objcopy with p_flags_valid set. */
2580 if (j != m->count || !m->p_flags_valid)
2581 {
2582 m->p_flags_valid = 1;
2583 m->p_flags = p_flags;
2584 }
2585 if (j == m->count)
b9c361e0
JL
2586 continue;
2587
f7d69005 2588 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2589 the remainder are put in a new segment.
2590 The scan resumes with the new segment. */
2591
b9c361e0
JL
2592 amt = sizeof (struct elf_segment_map);
2593 amt += (m->count - j - 1) * sizeof (asection *);
2594 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2595 if (n == NULL)
2596 return FALSE;
2597
2598 n->p_type = PT_LOAD;
b9c361e0
JL
2599 n->count = m->count - j;
2600 for (k = 0; k < n->count; ++k)
f7d69005
AM
2601 n->sections[k] = m->sections[j + k];
2602 m->count = j;
2603 m->p_size_valid = 0;
b9c361e0
JL
2604 n->next = m->next;
2605 m->next = n;
b9c361e0
JL
2606 }
2607
2608 return TRUE;
2609}
2610
25dbc73a
AM
2611/* Add extra PPC sections -- Note, for now, make .sbss2 and
2612 .PPC.EMB.sbss0 a normal section, and not a bss section so
2613 that the linker doesn't crater when trying to make more than
2614 2 sections. */
e656e369 2615
b35d266b 2616static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2617{
14b57c7c
AM
2618 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2619 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2620 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2621 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2622 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2623 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2624 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2625 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2626 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2627 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2628};
2629
551b43fd
AM
2630/* This is what we want for new plt/got. */
2631static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2632 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2633
2634static const struct bfd_elf_special_section *
2635ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 2636{
b35d266b 2637 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2638
2639 /* See if this is one of the special sections. */
2640 if (sec->name == NULL)
2641 return NULL;
2642
2643 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2644 sec->use_rela_p);
2645 if (ssect != NULL)
2646 {
2647 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2648 ssect = &ppc_alt_plt;
2649 return ssect;
2650 }
2651
2652 return _bfd_elf_get_sec_type_attr (abfd, sec);
2653}
25dbc73a
AM
2654\f
2655/* Very simple linked list structure for recording apuinfo values. */
2656typedef struct apuinfo_list
2657{
2658 struct apuinfo_list *next;
2659 unsigned long value;
2660}
2661apuinfo_list;
e656e369 2662
25dbc73a 2663static apuinfo_list *head;
f2faa800 2664static bfd_boolean apuinfo_set;
deaaf2f3 2665
25dbc73a
AM
2666static void
2667apuinfo_list_init (void)
2668{
2669 head = NULL;
f2faa800 2670 apuinfo_set = FALSE;
25dbc73a 2671}
9abc968f 2672
25dbc73a
AM
2673static void
2674apuinfo_list_add (unsigned long value)
2675{
2676 apuinfo_list *entry = head;
deaaf2f3 2677
25dbc73a
AM
2678 while (entry != NULL)
2679 {
2680 if (entry->value == value)
2681 return;
2682 entry = entry->next;
2683 }
b4a38de6 2684
25dbc73a
AM
2685 entry = bfd_malloc (sizeof (* entry));
2686 if (entry == NULL)
2687 return;
e656e369 2688
25dbc73a
AM
2689 entry->value = value;
2690 entry->next = head;
2691 head = entry;
2692}
9abc968f 2693
25dbc73a
AM
2694static unsigned
2695apuinfo_list_length (void)
2696{
2697 apuinfo_list *entry;
2698 unsigned long count;
9abc968f 2699
25dbc73a
AM
2700 for (entry = head, count = 0;
2701 entry;
2702 entry = entry->next)
2703 ++ count;
e656e369 2704
25dbc73a
AM
2705 return count;
2706}
eea6121a 2707
25dbc73a
AM
2708static inline unsigned long
2709apuinfo_list_element (unsigned long number)
2710{
2711 apuinfo_list * entry;
e656e369 2712
25dbc73a
AM
2713 for (entry = head;
2714 entry && number --;
2715 entry = entry->next)
2716 ;
252b5132 2717
25dbc73a
AM
2718 return entry ? entry->value : 0;
2719}
2720
2721static void
2722apuinfo_list_finish (void)
2723{
2724 apuinfo_list *entry;
2725
2726 for (entry = head; entry;)
252b5132 2727 {
25dbc73a
AM
2728 apuinfo_list *next = entry->next;
2729 free (entry);
2730 entry = next;
2731 }
9abc968f 2732
25dbc73a
AM
2733 head = NULL;
2734}
9abc968f 2735
25dbc73a
AM
2736/* Scan the input BFDs and create a linked list of
2737 the APUinfo values that will need to be emitted. */
9abc968f 2738
25dbc73a
AM
2739static void
2740ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2741{
2742 bfd *ibfd;
2743 asection *asec;
deddc40b
NS
2744 char *buffer = NULL;
2745 bfd_size_type largest_input_size = 0;
25dbc73a 2746 unsigned i;
25dbc73a
AM
2747 unsigned long length;
2748 const char *error_message = NULL;
9abc968f 2749
25dbc73a
AM
2750 if (link_info == NULL)
2751 return;
9abc968f 2752
25dbc73a 2753 apuinfo_list_init ();
252b5132 2754
25dbc73a 2755 /* Read in the input sections contents. */
c72f2fb2 2756 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2757 {
25dbc73a 2758 unsigned long datum;
252b5132 2759
25dbc73a
AM
2760 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2761 if (asec == NULL)
2762 continue;
252b5132 2763
695344c0 2764 /* xgettext:c-format */
deddc40b 2765 error_message = _("corrupt %s section in %B");
25dbc73a 2766 length = asec->size;
deddc40b
NS
2767 if (length < 20)
2768 goto fail;
2769
f2faa800 2770 apuinfo_set = TRUE;
deddc40b 2771 if (largest_input_size < asec->size)
25dbc73a 2772 {
deddc40b
NS
2773 if (buffer)
2774 free (buffer);
2775 largest_input_size = asec->size;
2776 buffer = bfd_malloc (largest_input_size);
2777 if (!buffer)
2778 return;
25dbc73a 2779 }
5b914448 2780
25dbc73a 2781 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2782 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2783 {
695344c0 2784 /* xgettext:c-format */
25dbc73a
AM
2785 error_message = _("unable to read in %s section from %B");
2786 goto fail;
2787 }
252b5132 2788
25dbc73a
AM
2789 /* Verify the contents of the header. Note - we have to
2790 extract the values this way in order to allow for a
2791 host whose endian-ness is different from the target. */
deddc40b 2792 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2793 if (datum != sizeof APUINFO_LABEL)
2794 goto fail;
252b5132 2795
deddc40b 2796 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2797 if (datum != 0x2)
2798 goto fail;
252b5132 2799
deddc40b 2800 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2801 goto fail;
252b5132 2802
25dbc73a 2803 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2804 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2805 if (datum + 20 != length)
2806 goto fail;
2807
25dbc73a
AM
2808 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2809 for (i = 0; i < datum; i += 4)
deddc40b 2810 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2811 }
2812
25dbc73a 2813 error_message = NULL;
252b5132 2814
f2faa800 2815 if (apuinfo_set)
deddc40b 2816 {
f2faa800
NS
2817 /* Compute the size of the output section. */
2818 unsigned num_entries = apuinfo_list_length ();
5b914448 2819
deddc40b
NS
2820 /* Set the output section size, if it exists. */
2821 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2822
deddc40b
NS
2823 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2824 {
2825 ibfd = abfd;
695344c0 2826 /* xgettext:c-format */
deddc40b
NS
2827 error_message = _("warning: unable to set size of %s section in %B");
2828 }
2829 }
25dbc73a
AM
2830
2831 fail:
deddc40b
NS
2832 if (buffer)
2833 free (buffer);
25dbc73a
AM
2834
2835 if (error_message)
4eca0228 2836 _bfd_error_handler (error_message, ibfd, APUINFO_SECTION_NAME);
25dbc73a 2837}
252b5132 2838
25dbc73a
AM
2839/* Prevent the output section from accumulating the input sections'
2840 contents. We have already stored this in our linked list structure. */
252b5132 2841
25dbc73a
AM
2842static bfd_boolean
2843ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2844 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2845 asection *asec,
2846 bfd_byte *contents ATTRIBUTE_UNUSED)
2847{
f2faa800 2848 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2849}
2850
25dbc73a
AM
2851/* Finally we can generate the output section. */
2852
2853static void
2854ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2855{
25dbc73a
AM
2856 bfd_byte *buffer;
2857 asection *asec;
2858 unsigned i;
2859 unsigned num_entries;
2860 bfd_size_type length;
7619e7c7 2861
25dbc73a
AM
2862 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2863 if (asec == NULL)
2864 return;
2865
f2faa800 2866 if (!apuinfo_set)
25dbc73a
AM
2867 return;
2868
2869 length = asec->size;
2870 if (length < 20)
2871 return;
2872
2873 buffer = bfd_malloc (length);
2874 if (buffer == NULL)
7619e7c7 2875 {
4eca0228 2876 _bfd_error_handler
25dbc73a
AM
2877 (_("failed to allocate space for new APUinfo section."));
2878 return;
7619e7c7 2879 }
7619e7c7 2880
25dbc73a
AM
2881 /* Create the apuinfo header. */
2882 num_entries = apuinfo_list_length ();
2883 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2884 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2885 bfd_put_32 (abfd, 0x2, buffer + 8);
2886 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2887
25dbc73a
AM
2888 length = 20;
2889 for (i = 0; i < num_entries; i++)
feee612b 2890 {
25dbc73a
AM
2891 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2892 length += 4;
feee612b 2893 }
feee612b 2894
25dbc73a 2895 if (length != asec->size)
4eca0228 2896 _bfd_error_handler (_("failed to compute new APUinfo section."));
252b5132 2897
25dbc73a 2898 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
4eca0228 2899 _bfd_error_handler (_("failed to install new APUinfo section."));
252b5132 2900
25dbc73a
AM
2901 free (buffer);
2902
2903 apuinfo_list_finish ();
252b5132 2904}
25dbc73a 2905\f
7382d32a 2906static bfd_boolean
c6dd29ce 2907is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2908{
c6dd29ce 2909 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2910
c6dd29ce 2911 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2912 return FALSE;
2913
c6dd29ce
AM
2914 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2915 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2916 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2917 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2918}
2919
468392fb
AM
2920static bfd_boolean
2921section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2922{
2923 bfd_vma vma = *(bfd_vma *) ptr;
2924 return ((section->flags & SEC_ALLOC) != 0
2925 && section->vma <= vma
2926 && vma < section->vma + section->size);
2927}
2928
2929static long
2930ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2931 long dynsymcount, asymbol **dynsyms,
2932 asymbol **ret)
2933{
2934 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2935 asection *plt, *relplt, *dynamic, *glink;
2936 bfd_vma glink_vma = 0;
2937 bfd_vma resolv_vma = 0;
2938 bfd_vma stub_vma;
2939 asymbol *s;
2940 arelent *p;
2941 long count, i;
2942 size_t size;
2943 char *names;
2944 bfd_byte buf[4];
2945
2946 *ret = NULL;
2947
2948 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2949 return 0;
2950
2951 if (dynsymcount <= 0)
2952 return 0;
2953
2954 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2955 if (relplt == NULL)
2956 return 0;
2957
2958 plt = bfd_get_section_by_name (abfd, ".plt");
2959 if (plt == NULL)
2960 return 0;
2961
2962 /* Call common code to handle old-style executable PLTs. */
2963 if (elf_section_flags (plt) & SHF_EXECINSTR)
2964 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2965 dynsymcount, dynsyms, ret);
2966
2967 /* If this object was prelinked, the prelinker stored the address
2968 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2969 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2970 if (dynamic != NULL)
2971 {
2972 bfd_byte *dynbuf, *extdyn, *extdynend;
2973 size_t extdynsize;
2974 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2975
2976 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2977 return -1;
2978
2979 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2980 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2981
2982 extdyn = dynbuf;
2983 extdynend = extdyn + dynamic->size;
2984 for (; extdyn < extdynend; extdyn += extdynsize)
2985 {
2986 Elf_Internal_Dyn dyn;
2987 (*swap_dyn_in) (abfd, extdyn, &dyn);
2988
2989 if (dyn.d_tag == DT_NULL)
2990 break;
2991
2992 if (dyn.d_tag == DT_PPC_GOT)
2993 {
2994 unsigned int g_o_t = dyn.d_un.d_val;
2995 asection *got = bfd_get_section_by_name (abfd, ".got");
2996 if (got != NULL
2997 && bfd_get_section_contents (abfd, got, buf,
2998 g_o_t - got->vma + 4, 4))
2999 glink_vma = bfd_get_32 (abfd, buf);
3000 break;
3001 }
3002 }
3003 free (dynbuf);
3004 }
3005
3006 /* Otherwise we read the first plt entry. */
3007 if (glink_vma == 0)
3008 {
3009 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
3010 glink_vma = bfd_get_32 (abfd, buf);
3011 }
3012
3013 if (glink_vma == 0)
3014 return 0;
3015
3016 /* The .glink section usually does not survive the final
3017 link; search for the section (usually .text) where the
3018 glink stubs now reside. */
3019 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
3020 if (glink == NULL)
3021 return 0;
3022
3023 /* Determine glink PLT resolver by reading the relative branch
3024 from the first glink stub. */
3025 if (bfd_get_section_contents (abfd, glink, buf,
3026 glink_vma - glink->vma, 4))
3027 {
3028 unsigned int insn = bfd_get_32 (abfd, buf);
3029
3030 /* The first glink stub may either branch to the resolver ... */
3031 insn ^= B;
3032 if ((insn & ~0x3fffffc) == 0)
3033 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3034
3035 /* ... or fall through a bunch of NOPs. */
3036 else if ((insn ^ B ^ NOP) == 0)
3037 for (i = 4;
3038 bfd_get_section_contents (abfd, glink, buf,
3039 glink_vma - glink->vma + i, 4);
3040 i += 4)
3041 if (bfd_get_32 (abfd, buf) != NOP)
3042 {
3043 resolv_vma = glink_vma + i;
3044 break;
3045 }
3046 }
3047
7382d32a 3048 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3049 /* If the stubs are those for -shared/-pie then we might have
3050 multiple stubs for each plt entry. If that is the case then
3051 there is no way to associate stubs with their plt entries short
3052 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
3053 if (!is_nonpic_glink_stub (abfd, glink,
3054 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
3055 return 0;
3056
468392fb
AM
3057 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3058 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3059 return -1;
3060
468392fb
AM
3061 size = count * sizeof (asymbol);
3062 p = relplt->relocation;
3063 for (i = 0; i < count; i++, p++)
e054468f
AM
3064 {
3065 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3066 if (p->addend != 0)
3067 size += sizeof ("+0x") - 1 + 8;
3068 }
468392fb
AM
3069
3070 size += sizeof (asymbol) + sizeof ("__glink");
3071
3072 if (resolv_vma)
3073 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3074
3075 s = *ret = bfd_malloc (size);
3076 if (s == NULL)
3077 return -1;
3078
1079403c 3079 stub_vma = glink_vma;
468392fb 3080 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3081 p = relplt->relocation + count - 1;
3082 for (i = 0; i < count; i++)
468392fb
AM
3083 {
3084 size_t len;
3085
3086 *s = **p->sym_ptr_ptr;
3087 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3088 we are defining a symbol, ensure one of them is set. */
3089 if ((s->flags & BSF_LOCAL) == 0)
3090 s->flags |= BSF_GLOBAL;
6ba2a415 3091 s->flags |= BSF_SYNTHETIC;
468392fb 3092 s->section = glink;
1079403c
AM
3093 stub_vma -= 16;
3094 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3095 stub_vma -= 32;
468392fb
AM
3096 s->value = stub_vma - glink->vma;
3097 s->name = names;
3098 s->udata.p = NULL;
3099 len = strlen ((*p->sym_ptr_ptr)->name);
3100 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3101 names += len;
e054468f
AM
3102 if (p->addend != 0)
3103 {
3104 memcpy (names, "+0x", sizeof ("+0x") - 1);
3105 names += sizeof ("+0x") - 1;
3106 bfd_sprintf_vma (abfd, names, p->addend);
3107 names += strlen (names);
3108 }
468392fb
AM
3109 memcpy (names, "@plt", sizeof ("@plt"));
3110 names += sizeof ("@plt");
3111 ++s;
1079403c 3112 --p;
468392fb
AM
3113 }
3114
3115 /* Add a symbol at the start of the glink branch table. */
86a4952b 3116 memset (s, 0, sizeof *s);
468392fb 3117 s->the_bfd = abfd;
6ba2a415 3118 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3119 s->section = glink;
3120 s->value = glink_vma - glink->vma;
3121 s->name = names;
3122 memcpy (names, "__glink", sizeof ("__glink"));
3123 names += sizeof ("__glink");
3124 s++;
3125 count++;
3126
3127 if (resolv_vma)
3128 {
3129 /* Add a symbol for the glink PLT resolver. */
86a4952b 3130 memset (s, 0, sizeof *s);
468392fb 3131 s->the_bfd = abfd;
6ba2a415 3132 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3133 s->section = glink;
3134 s->value = resolv_vma - glink->vma;
3135 s->name = names;
3136 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3137 names += sizeof ("__glink_PLTresolve");
3138 s++;
3139 count++;
3140 }
3141
3142 return count;
3143}
3144\f
25dbc73a
AM
3145/* The following functions are specific to the ELF linker, while
3146 functions above are used generally. They appear in this file more
3147 or less in the order in which they are called. eg.
3148 ppc_elf_check_relocs is called early in the link process,
3149 ppc_elf_finish_dynamic_sections is one of the last functions
3150 called. */
252b5132 3151
a6aa5195 3152/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3153 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3154struct plt_entry
3155{
3156 struct plt_entry *next;
3157
3158 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3159 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3160 GOT pointer reg. It will always be at least 32768. (Current
3161 gcc always uses an offset of 32768, but ld -r will pack .got2
3162 sections together resulting in larger offsets). */
a6aa5195
AM
3163 bfd_vma addend;
3164
3165 /* The .got2 section. */
3166 asection *sec;
3167
3168 /* PLT refcount or offset. */
3169 union
3170 {
3171 bfd_signed_vma refcount;
3172 bfd_vma offset;
3173 } plt;
3174
3175 /* .glink stub offset. */
3176 bfd_vma glink_offset;
3177};
3178
1d483afe 3179/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
3180 selects those that must be copied when linking a shared library,
3181 even when the symbol is local. */
252b5132 3182
1d483afe
AM
3183static int
3184must_be_dyn_reloc (struct bfd_link_info *info,
3185 enum elf_ppc_reloc_type r_type)
3186{
3187 switch (r_type)
3188 {
3189 default:
3190 return 1;
3191
3192 case R_PPC_REL24:
3193 case R_PPC_REL14:
3194 case R_PPC_REL14_BRTAKEN:
3195 case R_PPC_REL14_BRNTAKEN:
3196 case R_PPC_REL32:
3197 return 0;
3198
3199 case R_PPC_TPREL32:
3200 case R_PPC_TPREL16:
3201 case R_PPC_TPREL16_LO:
3202 case R_PPC_TPREL16_HI:
3203 case R_PPC_TPREL16_HA:
0e1862bb 3204 return !bfd_link_executable (info);
1d483afe
AM
3205 }
3206}
252b5132 3207
25dbc73a
AM
3208/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3209 copying dynamic variables from a shared lib into an app's dynbss
3210 section, and instead use a dynamic relocation to point into the
3211 shared lib. */
3212#define ELIMINATE_COPY_RELOCS 1
252b5132 3213
f95f8542
AM
3214/* Used to track dynamic relocations for local symbols. */
3215struct ppc_dyn_relocs
3216{
3217 struct ppc_dyn_relocs *next;
3218
3219 /* The input section of the reloc. */
3220 asection *sec;
3221
3222 /* Total number of relocs copied for the input section. */
3223 unsigned int count : 31;
3224
3225 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3226 unsigned int ifunc : 1;
3227};
3228
25dbc73a 3229/* PPC ELF linker hash entry. */
252b5132 3230
25dbc73a
AM
3231struct ppc_elf_link_hash_entry
3232{
3233 struct elf_link_hash_entry elf;
252b5132 3234
25dbc73a
AM
3235 /* If this symbol is used in the linker created sections, the processor
3236 specific backend uses this field to map the field into the offset
3237 from the beginning of the section. */
3238 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3239
25dbc73a 3240 /* Track dynamic relocs copied for this symbol. */
6061a67d 3241 struct elf_dyn_relocs *dyn_relocs;
252b5132 3242
25dbc73a
AM
3243 /* Contexts in which symbol is used in the GOT (or TOC).
3244 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3245 corresponding relocs are encountered during check_relocs.
3246 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3247 indicate the corresponding GOT entry type is not needed. */
3248#define TLS_GD 1 /* GD reloc. */
3249#define TLS_LD 2 /* LD reloc. */
3250#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3251#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3252#define TLS_TLS 16 /* Any TLS reloc. */
3253#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3254#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3255 char tls_mask;
4dc4a9a5
DJ
3256
3257 /* Nonzero if we have seen a small data relocation referring to this
3258 symbol. */
d3e454b9
AM
3259 unsigned char has_sda_refs : 1;
3260
3261 /* Flag use of given relocations. */
3262 unsigned char has_addr16_ha : 1;
3263 unsigned char has_addr16_lo : 1;
25dbc73a 3264};
252b5132 3265
25dbc73a
AM
3266#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3267
3268/* PPC ELF linker hash table. */
3269
3270struct ppc_elf_link_hash_table
3271{
3272 struct elf_link_hash_table elf;
3273
5446cbdf
AM
3274 /* Various options passed from the linker. */
3275 struct ppc_elf_params *params;
3276
25dbc73a 3277 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3278 asection *glink;
25dbc73a
AM
3279 asection *dynsbss;
3280 asection *relsbss;
c9a2f333 3281 elf_linker_section_t sdata[2];
25dbc73a 3282 asection *sbss;
6177242a 3283 asection *glink_eh_frame;
25dbc73a 3284
016687f8
AM
3285 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3286 asection *srelplt2;
3287
1d483afe 3288 /* Shortcut to __tls_get_addr. */
25dbc73a 3289 struct elf_link_hash_entry *tls_get_addr;
252b5132 3290
016687f8
AM
3291 /* The bfd that forced an old-style PLT. */
3292 bfd *old_bfd;
5b914448 3293
25dbc73a
AM
3294 /* TLS local dynamic got entry handling. */
3295 union {
3296 bfd_signed_vma refcount;
3297 bfd_vma offset;
3298 } tlsld_got;
252b5132 3299
c6dd29ce 3300 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3301 bfd_vma glink_pltresolve;
3302
3b36f7e6
AM
3303 /* Size of reserved GOT entries. */
3304 unsigned int got_header_size;
3305 /* Non-zero if allocating the header left a gap. */
3306 unsigned int got_gap;
3307
4a3dc543
RS
3308 /* The type of PLT we have chosen to use. */
3309 enum ppc_elf_plt_type plt_type;
3310
9d8504b1 3311 /* True if the target system is VxWorks. */
016687f8 3312 unsigned int is_vxworks:1;
9d8504b1
PB
3313
3314 /* The size of PLT entries. */
3315 int plt_entry_size;
3316 /* The distance between adjacent PLT slots. */
3317 int plt_slot_size;
3318 /* The size of the first PLT entry. */
3319 int plt_initial_entry_size;
016687f8 3320
87d72d41
AM
3321 /* Small local sym cache. */
3322 struct sym_cache sym_cache;
25dbc73a 3323};
252b5132 3324
94caa966
AM
3325/* Rename some of the generic section flags to better document how they
3326 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3327
3328/* Nonzero if this section has TLS related relocations. */
3329#define has_tls_reloc sec_flg0
3330
3331/* Nonzero if this section has a call to __tls_get_addr. */
3332#define has_tls_get_addr_call sec_flg1
3333
25dbc73a 3334/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3335
25dbc73a 3336#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3337 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3338 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3339
25dbc73a 3340/* Create an entry in a PPC ELF linker hash table. */
252b5132 3341
25dbc73a
AM
3342static struct bfd_hash_entry *
3343ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3344 struct bfd_hash_table *table,
3345 const char *string)
252b5132 3346{
25dbc73a
AM
3347 /* Allocate the structure if it has not already been allocated by a
3348 subclass. */
3349 if (entry == NULL)
3350 {
3351 entry = bfd_hash_allocate (table,
3352 sizeof (struct ppc_elf_link_hash_entry));
3353 if (entry == NULL)
3354 return entry;
3355 }
252b5132 3356
25dbc73a
AM
3357 /* Call the allocation method of the superclass. */
3358 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3359 if (entry != NULL)
3360 {
3361 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3362 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3363 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3364 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3365 }
252b5132 3366
25dbc73a 3367 return entry;
252b5132 3368}
3dab13f6 3369
25dbc73a 3370/* Create a PPC ELF linker hash table. */
3dab13f6 3371
25dbc73a
AM
3372static struct bfd_link_hash_table *
3373ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3374{
25dbc73a 3375 struct ppc_elf_link_hash_table *ret;
76e7a751 3376 static struct ppc_elf_params default_params
08dc996f 3377 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3378
25dbc73a
AM
3379 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3380 if (ret == NULL)
3381 return NULL;
3dab13f6 3382
66eb6687
AM
3383 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3384 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3385 sizeof (struct ppc_elf_link_hash_entry),
3386 PPC32_ELF_DATA))
3dab13f6 3387 {
25dbc73a
AM
3388 free (ret);
3389 return NULL;
3390 }
58111eb7 3391
a6aa5195
AM
3392 ret->elf.init_plt_refcount.refcount = 0;
3393 ret->elf.init_plt_refcount.glist = NULL;
3394 ret->elf.init_plt_offset.offset = 0;
3395 ret->elf.init_plt_offset.glist = NULL;
3396
db434ba0
AM
3397 ret->params = &default_params;
3398
c9a2f333
AM
3399 ret->sdata[0].name = ".sdata";
3400 ret->sdata[0].sym_name = "_SDA_BASE_";
3401 ret->sdata[0].bss_name = ".sbss";
3402
3403 ret->sdata[1].name = ".sdata2";
3404 ret->sdata[1].sym_name = "_SDA2_BASE_";
3405 ret->sdata[1].bss_name = ".sbss2";
3406
9d8504b1
PB
3407 ret->plt_entry_size = 12;
3408 ret->plt_slot_size = 8;
3409 ret->plt_initial_entry_size = 72;
9d8504b1 3410
25dbc73a
AM
3411 return &ret->elf.root;
3412}
3dab13f6 3413
5446cbdf
AM
3414/* Hook linker params into hash table. */
3415
3416void
3417ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3418{
3419 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3420
3421 if (htab)
3422 htab->params = params;
76e7a751 3423 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3424}
3425
9d8504b1 3426/* Create .got and the related sections. */
3dab13f6 3427
25dbc73a
AM
3428static bfd_boolean
3429ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3430{
3431 struct ppc_elf_link_hash_table *htab;
3dab13f6 3432
25dbc73a
AM
3433 if (!_bfd_elf_create_got_section (abfd, info))
3434 return FALSE;
3dab13f6 3435
25dbc73a 3436 htab = ppc_elf_hash_table (info);
ce558b89 3437 if (!htab->is_vxworks)
9d8504b1
PB
3438 {
3439 /* The powerpc .got has a blrl instruction in it. Mark it
3440 executable. */
ce558b89
AM
3441 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3442 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3443 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3444 return FALSE;
3445 }
3dab13f6 3446
25dbc73a
AM
3447 return TRUE;
3448}
3dab13f6 3449
93d1b056
AM
3450/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3451 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3452 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3453
3454static bfd_boolean
3455ppc_elf_create_linker_section (bfd *abfd,
3456 struct bfd_link_info *info,
3457 flagword flags,
3458 elf_linker_section_t *lsect)
3459{
3460 asection *s;
3461
3462 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3463 | SEC_LINKER_CREATED);
3464
3465 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3466 if (s == NULL)
3467 return FALSE;
3468 lsect->section = s;
3469
3470 /* Define the sym on the first section of this name. */
3471 s = bfd_get_section_by_name (abfd, lsect->name);
3472
3473 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3474 if (lsect->sym == NULL)
3475 return FALSE;
3476 lsect->sym->root.u.def.value = 0x8000;
3477 return TRUE;
3478}
3479
e054468f
AM
3480static bfd_boolean
3481ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3482{
3483 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3484 asection *s;
3485 flagword flags;
3486
3487 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3488 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3489 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3490 htab->glink = s;
3491 if (s == NULL
5446cbdf
AM
3492 || !bfd_set_section_alignment (abfd, s,
3493 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3494 return FALSE;
3495
6177242a
AM
3496 if (!info->no_ld_generated_unwind_info)
3497 {
3498 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3499 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3500 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3501 htab->glink_eh_frame = s;
3502 if (s == NULL
3503 || !bfd_set_section_alignment (abfd, s, 2))
3504 return FALSE;
3505 }
3506
e054468f
AM
3507 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3508 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3509 htab->elf.iplt = s;
e054468f
AM
3510 if (s == NULL
3511 || !bfd_set_section_alignment (abfd, s, 4))
3512 return FALSE;
3513
3514 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3515 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3516 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3517 htab->elf.irelplt = s;
e054468f
AM
3518 if (s == NULL
3519 || ! bfd_set_section_alignment (abfd, s, 2))
3520 return FALSE;
93d1b056
AM
3521
3522 if (!ppc_elf_create_linker_section (abfd, info, 0,
3523 &htab->sdata[0]))
3524 return FALSE;
3525
3526 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3527 &htab->sdata[1]))
3528 return FALSE;
3529
e054468f
AM
3530 return TRUE;
3531}
3532
25dbc73a
AM
3533/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3534 to output sections (just like _bfd_elf_create_dynamic_sections has
3535 to create .dynbss and .rela.bss). */
3dab13f6 3536
25dbc73a
AM
3537static bfd_boolean
3538ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3539{
3540 struct ppc_elf_link_hash_table *htab;
3541 asection *s;
3542 flagword flags;
3dab13f6 3543
25dbc73a 3544 htab = ppc_elf_hash_table (info);
3dab13f6 3545
ce558b89 3546 if (htab->elf.sgot == NULL
25dbc73a 3547 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3548 return FALSE;
3549
25dbc73a
AM
3550 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3551 return FALSE;
3dab13f6 3552
e054468f
AM
3553 if (htab->glink == NULL
3554 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3555 return FALSE;
3dab13f6 3556
14b2f831
AM
3557 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3558 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3559 htab->dynsbss = s;
3496cb2a 3560 if (s == NULL)
25dbc73a 3561 return FALSE;
3dab13f6 3562
0e1862bb 3563 if (! bfd_link_pic (info))
25dbc73a 3564 {
e054468f
AM
3565 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3566 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3567 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3568 htab->relsbss = s;
25dbc73a 3569 if (s == NULL
25dbc73a
AM
3570 || ! bfd_set_section_alignment (abfd, s, 2))
3571 return FALSE;
3572 }
3dab13f6 3573
711de32c
RS
3574 if (htab->is_vxworks
3575 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3576 return FALSE;
9d8504b1 3577
ce558b89 3578 s = htab->elf.splt;
3b36f7e6 3579 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3580 if (htab->plt_type == PLT_VXWORKS)
3581 /* The VxWorks PLT is a loaded section with contents. */
3582 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3583 return bfd_set_section_flags (abfd, s, flags);
3584}
3dab13f6 3585
25dbc73a 3586/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3587
25dbc73a 3588static void
fcfa13d2 3589ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3590 struct elf_link_hash_entry *dir,
3591 struct elf_link_hash_entry *ind)
3592{
3593 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3594
25dbc73a
AM
3595 edir = (struct ppc_elf_link_hash_entry *) dir;
3596 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3597
c79d6685
AM
3598 edir->tls_mask |= eind->tls_mask;
3599 edir->has_sda_refs |= eind->has_sda_refs;
3600
3601 /* If called to transfer flags for a weakdef during processing
3602 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3603 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3604 if (!(ELIMINATE_COPY_RELOCS
3605 && eind->elf.root.type != bfd_link_hash_indirect
3606 && edir->elf.dynamic_adjusted))
3607 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3608
e81830c5
AM
3609 if (edir->elf.versioned != versioned_hidden)
3610 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3611 edir->elf.ref_regular |= eind->elf.ref_regular;
3612 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3613 edir->elf.needs_plt |= eind->elf.needs_plt;
3614 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3615
25dbc73a
AM
3616 if (eind->dyn_relocs != NULL)
3617 {
3618 if (edir->dyn_relocs != NULL)
3dab13f6 3619 {
6061a67d
AM
3620 struct elf_dyn_relocs **pp;
3621 struct elf_dyn_relocs *p;
3dab13f6 3622
fcfa13d2 3623 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3624 list. Merge any entries against the same section. */
3625 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3626 {
6061a67d 3627 struct elf_dyn_relocs *q;
25dbc73a
AM
3628
3629 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3630 if (q->sec == p->sec)
3631 {
3632 q->pc_count += p->pc_count;
3633 q->count += p->count;
3634 *pp = p->next;
3635 break;
3636 }
3637 if (q == NULL)
3638 pp = &p->next;
3dab13f6 3639 }
25dbc73a 3640 *pp = edir->dyn_relocs;
3dab13f6 3641 }
25dbc73a
AM
3642
3643 edir->dyn_relocs = eind->dyn_relocs;
3644 eind->dyn_relocs = NULL;
3dab13f6 3645 }
3dab13f6 3646
68ba6d40
AM
3647 /* If we were called to copy over info for a weak sym, that's all.
3648 You might think dyn_relocs need not be copied over; After all,
3649 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3650 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3651 code in ppc_elf_adjust_dynamic_symbol needs to check for
3652 dyn_relocs in read-only sections, and it does so on what is the
3653 DIR sym here. */
3654 if (eind->elf.root.type != bfd_link_hash_indirect)
3655 return;
3656
a6aa5195
AM
3657 /* Copy over the GOT refcount entries that we may have already seen to
3658 the symbol which just became indirect. */
fcfa13d2
AM
3659 edir->elf.got.refcount += eind->elf.got.refcount;
3660 eind->elf.got.refcount = 0;
a6aa5195
AM
3661
3662 /* And plt entries. */
3663 if (eind->elf.plt.plist != NULL)
3664 {
3665 if (edir->elf.plt.plist != NULL)
3666 {
3667 struct plt_entry **entp;
3668 struct plt_entry *ent;
3669
3670 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3671 {
3672 struct plt_entry *dent;
3673
3674 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3675 if (dent->sec == ent->sec && dent->addend == ent->addend)
3676 {
3677 dent->plt.refcount += ent->plt.refcount;
3678 *entp = ent->next;
3679 break;
3680 }
3681 if (dent == NULL)
3682 entp = &ent->next;
3683 }
3684 *entp = edir->elf.plt.plist;
3685 }
3686
3687 edir->elf.plt.plist = eind->elf.plt.plist;
3688 eind->elf.plt.plist = NULL;
3689 }
3690
fcfa13d2 3691 if (eind->elf.dynindx != -1)
25dbc73a 3692 {
fcfa13d2
AM
3693 if (edir->elf.dynindx != -1)
3694 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3695 edir->elf.dynstr_index);
a6aa5195
AM
3696 edir->elf.dynindx = eind->elf.dynindx;
3697 edir->elf.dynstr_index = eind->elf.dynstr_index;
3698 eind->elf.dynindx = -1;
3699 eind->elf.dynstr_index = 0;
25dbc73a 3700 }
25dbc73a 3701}
3dab13f6 3702
25dbc73a
AM
3703/* Hook called by the linker routine which adds symbols from an object
3704 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3705
25dbc73a
AM
3706static bfd_boolean
3707ppc_elf_add_symbol_hook (bfd *abfd,
3708 struct bfd_link_info *info,
3709 Elf_Internal_Sym *sym,
3710 const char **namep ATTRIBUTE_UNUSED,
3711 flagword *flagsp ATTRIBUTE_UNUSED,
3712 asection **secp,
3713 bfd_vma *valp)
3714{
3715 if (sym->st_shndx == SHN_COMMON
0e1862bb 3716 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3717 && is_ppc_elf (info->output_bfd)
3718 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3719 {
3720 /* Common symbols less than or equal to -G nn bytes are automatically
3721 put into .sbss. */
3722 struct ppc_elf_link_hash_table *htab;
3dab13f6 3723
25dbc73a
AM
3724 htab = ppc_elf_hash_table (info);
3725 if (htab->sbss == NULL)
3726 {
644285ef 3727 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3728
644285ef
AM
3729 if (!htab->elf.dynobj)
3730 htab->elf.dynobj = abfd;
3731
3496cb2a
L
3732 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3733 ".sbss",
3734 flags);
3735 if (htab->sbss == NULL)
25dbc73a 3736 return FALSE;
3dab13f6 3737 }
3dab13f6 3738
25dbc73a
AM
3739 *secp = htab->sbss;
3740 *valp = sym->st_size;
3741 }
3dab13f6 3742
a43942db 3743 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3744 && (abfd->flags & DYNAMIC) == 0
3745 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3746 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3747
25dbc73a 3748 return TRUE;
3dab13f6
AM
3749}
3750\f
25dbc73a
AM
3751/* Find a linker generated pointer with a given addend and type. */
3752
3753static elf_linker_section_pointers_t *
3754elf_find_pointer_linker_section
3755 (elf_linker_section_pointers_t *linker_pointers,
3756 bfd_vma addend,
3757 elf_linker_section_t *lsect)
252b5132 3758{
25dbc73a
AM
3759 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3760 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3761 return linker_pointers;
252b5132 3762
25dbc73a
AM
3763 return NULL;
3764}
3765
3766/* Allocate a pointer to live in a linker created section. */
3767
3768static bfd_boolean
93d1b056
AM
3769elf_allocate_pointer_linker_section (bfd *abfd,
3770 elf_linker_section_t *lsect,
3771 struct elf_link_hash_entry *h,
3772 const Elf_Internal_Rela *rel)
25dbc73a
AM
3773{
3774 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3775 elf_linker_section_pointers_t *linker_section_ptr;
3776 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3777 bfd_size_type amt;
3778
3779 BFD_ASSERT (lsect != NULL);
3780
3781 /* Is this a global symbol? */
3782 if (h != NULL)
3783 {
3784 struct ppc_elf_link_hash_entry *eh;
3785
3786 /* Has this symbol already been allocated? If so, our work is done. */
3787 eh = (struct ppc_elf_link_hash_entry *) h;
3788 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3789 rel->r_addend,
3790 lsect))
3791 return TRUE;
3792
3793 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3794 }
3795 else
3796 {
0c8d6e5c 3797 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3798
25dbc73a
AM
3799 /* Allocation of a pointer to a local symbol. */
3800 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3801
3802 /* Allocate a table to hold the local symbols if first time. */
3803 if (!ptr)
3804 {
0ffa91dd 3805 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3806
3807 amt = num_symbols;
3808 amt *= sizeof (elf_linker_section_pointers_t *);
3809 ptr = bfd_zalloc (abfd, amt);
3810
3811 if (!ptr)
3812 return FALSE;
3813
3814 elf_local_ptr_offsets (abfd) = ptr;
3815 }
3816
3817 /* Has this symbol already been allocated? If so, our work is done. */
3818 if (elf_find_pointer_linker_section (ptr[r_symndx],
3819 rel->r_addend,
3820 lsect))
3821 return TRUE;
252b5132 3822
25dbc73a 3823 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3824 }
41fcb14e 3825
25dbc73a
AM
3826 /* Allocate space for a pointer in the linker section, and allocate
3827 a new pointer record from internal memory. */
3828 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3829 amt = sizeof (elf_linker_section_pointers_t);
3830 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3831
25dbc73a 3832 if (!linker_section_ptr)
7619e7c7 3833 return FALSE;
41fcb14e 3834
25dbc73a
AM
3835 linker_section_ptr->next = *ptr_linker_section_ptr;
3836 linker_section_ptr->addend = rel->r_addend;
3837 linker_section_ptr->lsect = lsect;
25dbc73a 3838 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3839
93d1b056
AM
3840 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3841 return FALSE;
25dbc73a
AM
3842 linker_section_ptr->offset = lsect->section->size;
3843 lsect->section->size += 4;
7619e7c7 3844
25dbc73a
AM
3845#ifdef DEBUG
3846 fprintf (stderr,
3847 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3848 lsect->name, (long) linker_section_ptr->offset,
3849 (long) lsect->section->size);
3850#endif
7619e7c7
AM
3851
3852 return TRUE;
41fcb14e
AM
3853}
3854
e054468f 3855static struct plt_entry **
25dbc73a
AM
3856update_local_sym_info (bfd *abfd,
3857 Elf_Internal_Shdr *symtab_hdr,
3858 unsigned long r_symndx,
3859 int tls_type)
252b5132 3860{
25dbc73a 3861 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3862 struct plt_entry **local_plt;
25dbc73a 3863 char *local_got_tls_masks;
252b5132 3864
25dbc73a 3865 if (local_got_refcounts == NULL)
252b5132 3866 {
25dbc73a
AM
3867 bfd_size_type size = symtab_hdr->sh_info;
3868
e054468f
AM
3869 size *= (sizeof (*local_got_refcounts)
3870 + sizeof (*local_plt)
3871 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3872 local_got_refcounts = bfd_zalloc (abfd, size);
3873 if (local_got_refcounts == NULL)
e054468f 3874 return NULL;
25dbc73a 3875 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3876 }
41fcb14e 3877
e054468f
AM
3878 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3879 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3880 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3881 if (tls_type != PLT_IFUNC)
3882 local_got_refcounts[r_symndx] += 1;
3883 return local_plt + r_symndx;
25dbc73a 3884}
41fcb14e 3885
a6aa5195 3886static bfd_boolean
3ec01793 3887update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3888 asection *sec, bfd_vma addend)
3889{
3890 struct plt_entry *ent;
3891
32af9f6e
AM
3892 if (addend < 32768)
3893 sec = NULL;
3ec01793 3894 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3895 if (ent->sec == sec && ent->addend == addend)
3896 break;
3897 if (ent == NULL)
3898 {
3899 bfd_size_type amt = sizeof (*ent);
3900 ent = bfd_alloc (abfd, amt);
3901 if (ent == NULL)
3902 return FALSE;
3ec01793 3903 ent->next = *plist;
a6aa5195
AM
3904 ent->sec = sec;
3905 ent->addend = addend;
3906 ent->plt.refcount = 0;
3ec01793 3907 *plist = ent;
a6aa5195
AM
3908 }
3909 ent->plt.refcount += 1;
3910 return TRUE;
3911}
3912
3913static struct plt_entry *
3ec01793 3914find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3915{
3916 struct plt_entry *ent;
3917
3918 if (addend < 32768)
3919 sec = NULL;
3ec01793 3920 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3921 if (ent->sec == sec && ent->addend == addend)
3922 break;
3923 return ent;
3924}
3925
e054468f
AM
3926static bfd_boolean
3927is_branch_reloc (enum elf_ppc_reloc_type r_type)
3928{
3929 return (r_type == R_PPC_PLTREL24
3930 || r_type == R_PPC_LOCAL24PC
3931 || r_type == R_PPC_REL24
3932 || r_type == R_PPC_REL14
3933 || r_type == R_PPC_REL14_BRTAKEN
3934 || r_type == R_PPC_REL14_BRNTAKEN
3935 || r_type == R_PPC_ADDR24
3936 || r_type == R_PPC_ADDR14
3937 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3938 || r_type == R_PPC_ADDR14_BRNTAKEN
3939 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3940}
3941
25dbc73a
AM
3942static void
3943bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3944{
4eca0228 3945 _bfd_error_handler
695344c0 3946 /* xgettext:c-format */
25dbc73a
AM
3947 (_("%B: relocation %s cannot be used when making a shared object"),
3948 abfd,
3949 ppc_elf_howto_table[r_type]->name);
3950 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3951}
3952
25dbc73a
AM
3953/* Look through the relocs for a section during the first phase, and
3954 allocate space in the global offset table or procedure linkage
3955 table. */
252b5132 3956
b34976b6 3957static bfd_boolean
25dbc73a
AM
3958ppc_elf_check_relocs (bfd *abfd,
3959 struct bfd_link_info *info,
3960 asection *sec,
3961 const Elf_Internal_Rela *relocs)
252b5132 3962{
7619e7c7 3963 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3964 Elf_Internal_Shdr *symtab_hdr;
3965 struct elf_link_hash_entry **sym_hashes;
3966 const Elf_Internal_Rela *rel;
3967 const Elf_Internal_Rela *rel_end;
a6aa5195 3968 asection *got2, *sreloc;
727fc41e 3969 struct elf_link_hash_entry *tga;
25dbc73a 3970
0e1862bb 3971 if (bfd_link_relocatable (info))
25dbc73a 3972 return TRUE;
252b5132 3973
c87b5a93
AM
3974 /* Don't do anything special with non-loaded, non-alloced sections.
3975 In particular, any relocs in such sections should not affect GOT
3976 and PLT reference counting (ie. we don't allow them to create GOT
3977 or PLT entries), there's no possibility or desire to optimize TLS
3978 relocs, and there's not much point in propagating relocs to shared
3979 libs that the dynamic linker won't relocate. */
3980 if ((sec->flags & SEC_ALLOC) == 0)
3981 return TRUE;
3982
252b5132 3983#ifdef DEBUG
25dbc73a
AM
3984 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3985 sec, abfd);
252b5132
RH
3986#endif
3987
0c8d6e5c 3988 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3989
25dbc73a
AM
3990 /* Initialize howto table if not already done. */
3991 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3992 ppc_elf_howto_init ();
3993
7619e7c7 3994 htab = ppc_elf_hash_table (info);
25f23106
AM
3995 if (htab->glink == NULL)
3996 {
3997 if (htab->elf.dynobj == NULL)
3998 htab->elf.dynobj = abfd;
3999 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
4000 return FALSE;
4001 }
727fc41e
AM
4002 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4003 FALSE, FALSE, TRUE);
0ffa91dd 4004 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 4005 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 4006 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4007 sreloc = NULL;
4008
4009 rel_end = relocs + sec->reloc_count;
4010 for (rel = relocs; rel < rel_end; rel++)
4011 {
4012 unsigned long r_symndx;
4013 enum elf_ppc_reloc_type r_type;
4014 struct elf_link_hash_entry *h;
727fc41e 4015 int tls_type;
cbf95972 4016 struct plt_entry **ifunc;
25dbc73a
AM
4017
4018 r_symndx = ELF32_R_SYM (rel->r_info);
4019 if (r_symndx < symtab_hdr->sh_info)
4020 h = NULL;
4021 else
973a3492
L
4022 {
4023 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4024 while (h->root.type == bfd_link_hash_indirect
4025 || h->root.type == bfd_link_hash_warning)
4026 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4027
4028 /* PR15323, ref flags aren't set for references in the same
4029 object. */
4030 h->root.non_ir_ref = 1;
973a3492 4031 }
25dbc73a
AM
4032
4033 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4034 This shows up in particular in an R_PPC_ADDR32 in the eabi
4035 startup code. */
3b36f7e6 4036 if (h != NULL
ce558b89 4037 && htab->elf.sgot == NULL
3b36f7e6 4038 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4039 {
3b36f7e6
AM
4040 if (htab->elf.dynobj == NULL)
4041 htab->elf.dynobj = abfd;
4042 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4043 return FALSE;
4044 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4045 }
252b5132 4046
727fc41e 4047 tls_type = 0;
de972ffa 4048 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4049 ifunc = NULL;
06a162cf 4050 if (h == NULL && !htab->is_vxworks)
e054468f 4051 {
06a162cf
AM
4052 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4053 abfd, r_symndx);
4054 if (isym == NULL)
4055 return FALSE;
4056
0bed072f 4057 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4058 {
0bed072f 4059 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4060 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4061 PLT_IFUNC);
4062 if (ifunc == NULL)
e054468f
AM
4063 return FALSE;
4064
06a162cf
AM
4065 /* STT_GNU_IFUNC symbols must have a PLT entry;
4066 In a non-pie executable even when there are
4067 no plt calls. */
0e1862bb 4068 if (!bfd_link_pic (info)
0bed072f 4069 || is_branch_reloc (r_type))
e054468f 4070 {
0bed072f
AM
4071 bfd_vma addend = 0;
4072 if (r_type == R_PPC_PLTREL24)
4073 {
4074 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4075 if (bfd_link_pic (info))
0bed072f
AM
4076 addend = rel->r_addend;
4077 }
4078 if (!update_plt_info (abfd, ifunc, got2, addend))
4079 return FALSE;
e054468f
AM
4080 }
4081 }
25f23106
AM
4082 }
4083
de972ffa
AM
4084 if (!htab->is_vxworks
4085 && is_branch_reloc (r_type)
4086 && h != NULL
4087 && h == tga)
25f23106 4088 {
de972ffa
AM
4089 if (rel != relocs
4090 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4091 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4092 /* We have a new-style __tls_get_addr call with a marker
4093 reloc. */
4094 ;
4095 else
4096 /* Mark this section as having an old-style call. */
4097 sec->has_tls_get_addr_call = 1;
e054468f 4098 }
727fc41e 4099
25dbc73a
AM
4100 switch (r_type)
4101 {
727fc41e
AM
4102 case R_PPC_TLSGD:
4103 case R_PPC_TLSLD:
4104 /* These special tls relocs tie a call to __tls_get_addr with
4105 its parameter symbol. */
4106 break;
4107
25dbc73a
AM
4108 case R_PPC_GOT_TLSLD16:
4109 case R_PPC_GOT_TLSLD16_LO:
4110 case R_PPC_GOT_TLSLD16_HI:
4111 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4112 tls_type = TLS_TLS | TLS_LD;
4113 goto dogottls;
252b5132 4114
25dbc73a
AM
4115 case R_PPC_GOT_TLSGD16:
4116 case R_PPC_GOT_TLSGD16_LO:
4117 case R_PPC_GOT_TLSGD16_HI:
4118 case R_PPC_GOT_TLSGD16_HA:
4119 tls_type = TLS_TLS | TLS_GD;
4120 goto dogottls;
4121
4122 case R_PPC_GOT_TPREL16:
4123 case R_PPC_GOT_TPREL16_LO:
4124 case R_PPC_GOT_TPREL16_HI:
4125 case R_PPC_GOT_TPREL16_HA:
0e1862bb 4126 if (bfd_link_pic (info))
25dbc73a
AM
4127 info->flags |= DF_STATIC_TLS;
4128 tls_type = TLS_TLS | TLS_TPREL;
4129 goto dogottls;
4130
4131 case R_PPC_GOT_DTPREL16:
4132 case R_PPC_GOT_DTPREL16_LO:
4133 case R_PPC_GOT_DTPREL16_HI:
4134 case R_PPC_GOT_DTPREL16_HA:
4135 tls_type = TLS_TLS | TLS_DTPREL;
4136 dogottls:
4137 sec->has_tls_reloc = 1;
1a0670f3 4138 /* Fall through. */
252b5132 4139
25dbc73a
AM
4140 /* GOT16 relocations */
4141 case R_PPC_GOT16:
4142 case R_PPC_GOT16_LO:
4143 case R_PPC_GOT16_HI:
4144 case R_PPC_GOT16_HA:
4145 /* This symbol requires a global offset table entry. */
ce558b89 4146 if (htab->elf.sgot == NULL)
25dbc73a
AM
4147 {
4148 if (htab->elf.dynobj == NULL)
4149 htab->elf.dynobj = abfd;
4150 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4151 return FALSE;
4152 }
4153 if (h != NULL)
4154 {
4155 h->got.refcount += 1;
4156 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4157 }
4158 else
4159 /* This is a global offset table entry for a local symbol. */
4160 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4161 return FALSE;
91e21fb7
AM
4162
4163 /* We may also need a plt entry if the symbol turns out to be
4164 an ifunc. */
0e1862bb 4165 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4166 {
4167 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4168 return FALSE;
4169 }
25dbc73a 4170 break;
252b5132 4171
25dbc73a
AM
4172 /* Indirect .sdata relocation. */
4173 case R_PPC_EMB_SDAI16:
0e1862bb 4174 if (bfd_link_pic (info))
25dbc73a
AM
4175 {
4176 bad_shared_reloc (abfd, r_type);
4177 return FALSE;
4178 }
93d1b056
AM
4179 htab->sdata[0].sym->ref_regular = 1;
4180 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4181 h, rel))
25dbc73a 4182 return FALSE;
046183de
AM
4183 if (h != NULL)
4184 {
4185 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4186 h->non_got_ref = TRUE;
4187 }
25dbc73a 4188 break;
252b5132 4189
25dbc73a
AM
4190 /* Indirect .sdata2 relocation. */
4191 case R_PPC_EMB_SDA2I16:
0e1862bb 4192 if (bfd_link_pic (info))
25dbc73a
AM
4193 {
4194 bad_shared_reloc (abfd, r_type);
4195 return FALSE;
4196 }
93d1b056
AM
4197 htab->sdata[1].sym->ref_regular = 1;
4198 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4199 h, rel))
25dbc73a 4200 return FALSE;
046183de
AM
4201 if (h != NULL)
4202 {
4203 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4204 h->non_got_ref = TRUE;
4205 }
25dbc73a 4206 break;
252b5132 4207
93d1b056
AM
4208 case R_PPC_SDAREL16:
4209 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4210 /* Fall through. */
93d1b056 4211
b9c361e0
JL
4212 case R_PPC_VLE_SDAREL_LO16A:
4213 case R_PPC_VLE_SDAREL_LO16D:
4214 case R_PPC_VLE_SDAREL_HI16A:
4215 case R_PPC_VLE_SDAREL_HI16D:
4216 case R_PPC_VLE_SDAREL_HA16A:
4217 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4218 if (h != NULL)
4219 {
4220 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4221 h->non_got_ref = TRUE;
4222 }
4223 break;
4224
b9c361e0
JL
4225 case R_PPC_VLE_REL8:
4226 case R_PPC_VLE_REL15:
4227 case R_PPC_VLE_REL24:
4228 case R_PPC_VLE_LO16A:
4229 case R_PPC_VLE_LO16D:
4230 case R_PPC_VLE_HI16A:
4231 case R_PPC_VLE_HI16D:
4232 case R_PPC_VLE_HA16A:
4233 case R_PPC_VLE_HA16D:
4234 break;
4235
25dbc73a 4236 case R_PPC_EMB_SDA2REL:
0e1862bb 4237 if (bfd_link_pic (info))
046183de
AM
4238 {
4239 bad_shared_reloc (abfd, r_type);
4240 return FALSE;
4241 }
93d1b056 4242 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4243 if (h != NULL)
4244 {
4245 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4246 h->non_got_ref = TRUE;
4247 }
4248 break;
4249
b9c361e0
JL
4250 case R_PPC_VLE_SDA21_LO:
4251 case R_PPC_VLE_SDA21:
25dbc73a
AM
4252 case R_PPC_EMB_SDA21:
4253 case R_PPC_EMB_RELSDA:
0e1862bb 4254 if (bfd_link_pic (info))
046183de
AM
4255 {
4256 bad_shared_reloc (abfd, r_type);
4257 return FALSE;
4258 }
046183de
AM
4259 if (h != NULL)
4260 {
4261 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4262 h->non_got_ref = TRUE;
4263 }
4264 break;
4265
25dbc73a
AM
4266 case R_PPC_EMB_NADDR32:
4267 case R_PPC_EMB_NADDR16:
4268 case R_PPC_EMB_NADDR16_LO:
4269 case R_PPC_EMB_NADDR16_HI:
4270 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4271 if (bfd_link_pic (info))
25dbc73a
AM
4272 {
4273 bad_shared_reloc (abfd, r_type);
4274 return FALSE;
4275 }
4dc4a9a5 4276 if (h != NULL)
046183de 4277 h->non_got_ref = TRUE;
25dbc73a 4278 break;
252b5132 4279
25dbc73a 4280 case R_PPC_PLTREL24:
de972ffa 4281 if (h == NULL)
6d78d0b9
AM
4282 break;
4283 /* Fall through */
4284 case R_PPC_PLT32:
25dbc73a
AM
4285 case R_PPC_PLTREL32:
4286 case R_PPC_PLT16_LO:
4287 case R_PPC_PLT16_HI:
4288 case R_PPC_PLT16_HA:
4289#ifdef DEBUG
4290 fprintf (stderr, "Reloc requires a PLT entry\n");
4291#endif
cbf95972 4292 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4293 if (h == NULL)
4294 {
cbf95972
AM
4295 if (ifunc == NULL)
4296 {
4297 /* It does not make sense to have a procedure linkage
4298 table entry for a non-ifunc local symbol. */
4299 info->callbacks->einfo
695344c0 4300 /* xgettext:c-format */
cbf95972
AM
4301 (_("%P: %H: %s reloc against local symbol\n"),
4302 abfd, sec, rel->r_offset,
4303 ppc_elf_howto_table[r_type]->name);
4304 bfd_set_error (bfd_error_bad_value);
4305 return FALSE;
4306 }
25dbc73a 4307 }
a6aa5195
AM
4308 else
4309 {
016687f8 4310 bfd_vma addend = 0;
ee05f2fe 4311
016687f8
AM
4312 if (r_type == R_PPC_PLTREL24)
4313 {
4314 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4315 if (bfd_link_pic (info))
a877a2b6 4316 addend = rel->r_addend;
016687f8 4317 }
a6aa5195 4318 h->needs_plt = 1;
32af9f6e 4319 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4320 return FALSE;
4321 }
25dbc73a 4322 break;
ee05f2fe 4323
25dbc73a
AM
4324 /* The following relocations don't need to propagate the
4325 relocation if linking a shared object since they are
4326 section relative. */
4327 case R_PPC_SECTOFF:
4328 case R_PPC_SECTOFF_LO:
4329 case R_PPC_SECTOFF_HI:
4330 case R_PPC_SECTOFF_HA:
4331 case R_PPC_DTPREL16:
4332 case R_PPC_DTPREL16_LO:
4333 case R_PPC_DTPREL16_HI:
4334 case R_PPC_DTPREL16_HA:
4335 case R_PPC_TOC16:
4336 break;
252b5132 4337
d7128ce4
AM
4338 case R_PPC_REL16:
4339 case R_PPC_REL16_LO:
4340 case R_PPC_REL16_HI:
4341 case R_PPC_REL16_HA:
a680de9a 4342 case R_PPC_REL16DX_HA:
016687f8 4343 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4344 break;
4345
a6aa5195 4346 /* These are just markers. */
25dbc73a
AM
4347 case R_PPC_TLS:
4348 case R_PPC_EMB_MRKREF:
4349 case R_PPC_NONE:
4350 case R_PPC_max:
32af9f6e
AM
4351 case R_PPC_RELAX:
4352 case R_PPC_RELAX_PLT:
4353 case R_PPC_RELAX_PLTREL24:
25dbc73a 4354 break;
252b5132 4355
25dbc73a
AM
4356 /* These should only appear in dynamic objects. */
4357 case R_PPC_COPY:
4358 case R_PPC_GLOB_DAT:
4359 case R_PPC_JMP_SLOT:
4360 case R_PPC_RELATIVE:
e054468f 4361 case R_PPC_IRELATIVE:
25dbc73a 4362 break;
252b5132 4363
25dbc73a
AM
4364 /* These aren't handled yet. We'll report an error later. */
4365 case R_PPC_ADDR30:
4366 case R_PPC_EMB_RELSEC16:
4367 case R_PPC_EMB_RELST_LO:
4368 case R_PPC_EMB_RELST_HI:
4369 case R_PPC_EMB_RELST_HA:
4370 case R_PPC_EMB_BIT_FLD:
4371 break;
252b5132 4372
25dbc73a
AM
4373 /* This refers only to functions defined in the shared library. */
4374 case R_PPC_LOCAL24PC:
727fc41e 4375 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4376 {
4377 htab->plt_type = PLT_OLD;
4378 htab->old_bfd = abfd;
4379 }
c7e17e05
AM
4380 if (h != NULL && h->type == STT_GNU_IFUNC)
4381 {
c7e17e05
AM
4382 h->needs_plt = 1;
4383 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4384 return FALSE;
4385 }
25dbc73a 4386 break;
252b5132 4387
25dbc73a
AM
4388 /* This relocation describes the C++ object vtable hierarchy.
4389 Reconstruct it for later use during GC. */
4390 case R_PPC_GNU_VTINHERIT:
4391 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4392 return FALSE;
4393 break;
252b5132 4394
25dbc73a
AM
4395 /* This relocation describes which C++ vtable entries are actually
4396 used. Record for later use during GC. */
4397 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4398 BFD_ASSERT (h != NULL);
4399 if (h != NULL
4400 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4401 return FALSE;
4402 break;
252b5132 4403
25dbc73a
AM
4404 /* We shouldn't really be seeing these. */
4405 case R_PPC_TPREL32:
1d483afe
AM
4406 case R_PPC_TPREL16:
4407 case R_PPC_TPREL16_LO:
4408 case R_PPC_TPREL16_HI:
4409 case R_PPC_TPREL16_HA:
0e1862bb 4410 if (bfd_link_pic (info))
25dbc73a
AM
4411 info->flags |= DF_STATIC_TLS;
4412 goto dodyn;
252b5132 4413
25dbc73a
AM
4414 /* Nor these. */
4415 case R_PPC_DTPMOD32:
4416 case R_PPC_DTPREL32:
4417 goto dodyn;
252b5132 4418
9edfd1af
AM
4419 case R_PPC_REL32:
4420 if (h == NULL
4421 && got2 != NULL
4422 && (sec->flags & SEC_CODE) != 0
0e1862bb 4423 && bfd_link_pic (info)
4a3dc543 4424 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4425 {
4426 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4427 the start of a function, which assembles to a REL32
4428 reference to .got2. If we detect one of these, then
4429 force the old PLT layout because the linker cannot
4430 reliably deduce the GOT pointer value needed for
4431 PLT call stubs. */
4432 asection *s;
87d72d41 4433 Elf_Internal_Sym *isym;
9edfd1af 4434
87d72d41
AM
4435 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4436 abfd, r_symndx);
4437 if (isym == NULL)
4438 return FALSE;
4439
4440 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4441 if (s == got2)
016687f8
AM
4442 {
4443 htab->plt_type = PLT_OLD;
4444 htab->old_bfd = abfd;
4445 }
9edfd1af 4446 }
7123df0e 4447 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4448 break;
625af618
AM
4449 /* fall through */
4450
4451 case R_PPC_ADDR32:
4452 case R_PPC_ADDR16:
4453 case R_PPC_ADDR16_LO:
4454 case R_PPC_ADDR16_HI:
4455 case R_PPC_ADDR16_HA:
4456 case R_PPC_UADDR32:
4457 case R_PPC_UADDR16:
0e1862bb 4458 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4459 {
4460 /* We may need a plt entry if the symbol turns out to be
4461 a function defined in a dynamic object. */
3ec01793 4462 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4463 return FALSE;
4464
4465 /* We may need a copy reloc too. */
4466 h->non_got_ref = 1;
4467 h->pointer_equality_needed = 1;
d3e454b9
AM
4468 if (r_type == R_PPC_ADDR16_HA)
4469 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4470 if (r_type == R_PPC_ADDR16_LO)
4471 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4472 }
4473 goto dodyn;
9edfd1af 4474
25dbc73a
AM
4475 case R_PPC_REL24:
4476 case R_PPC_REL14:
4477 case R_PPC_REL14_BRTAKEN:
4478 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4479 if (h == NULL)
25dbc73a 4480 break;
7123df0e 4481 if (h == htab->elf.hgot)
d7128ce4 4482 {
7123df0e 4483 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4484 {
4485 htab->plt_type = PLT_OLD;
4486 htab->old_bfd = abfd;
4487 }
d7128ce4
AM
4488 break;
4489 }
25dbc73a 4490 /* fall through */
ee05f2fe 4491
25dbc73a 4492 case R_PPC_ADDR24:
25dbc73a
AM
4493 case R_PPC_ADDR14:
4494 case R_PPC_ADDR14_BRTAKEN:
4495 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4496 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4497 {
4498 /* We may need a plt entry if the symbol turns out to be
4499 a function defined in a dynamic object. */
e054468f 4500 h->needs_plt = 1;
de972ffa 4501 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4502 return FALSE;
625af618 4503 break;
25dbc73a 4504 }
7619e7c7 4505
25dbc73a
AM
4506 dodyn:
4507 /* If we are creating a shared library, and this is a reloc
4508 against a global symbol, or a non PC relative reloc
4509 against a local symbol, then we need to copy the reloc
4510 into the shared library. However, if we are linking with
4511 -Bsymbolic, we do not need to copy a reloc against a
4512 global symbol which is defined in an object we are
4513 including in the link (i.e., DEF_REGULAR is set). At
4514 this point we have not seen all the input files, so it is
4515 possible that DEF_REGULAR is not set now but will be set
4516 later (it is never cleared). In case of a weak definition,
4517 DEF_REGULAR may be cleared later by a strong definition in
4518 a shared library. We account for that possibility below by
4519 storing information in the dyn_relocs field of the hash
4520 table entry. A similar situation occurs when creating
4521 shared libraries and symbol visibility changes render the
4522 symbol local.
7619e7c7 4523
25dbc73a
AM
4524 If on the other hand, we are creating an executable, we
4525 may need to keep relocations for symbols satisfied by a
4526 dynamic library if we manage to avoid copy relocs for the
4527 symbol. */
0e1862bb 4528 if ((bfd_link_pic (info)
1d483afe 4529 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4530 || (h != NULL
198f1157 4531 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4532 || h->root.type == bfd_link_hash_defweak
4533 || !h->def_regular))))
4534 || (ELIMINATE_COPY_RELOCS
0e1862bb 4535 && !bfd_link_pic (info)
25dbc73a
AM
4536 && h != NULL
4537 && (h->root.type == bfd_link_hash_defweak
de972ffa 4538 || !h->def_regular)))
25dbc73a 4539 {
25dbc73a
AM
4540#ifdef DEBUG
4541 fprintf (stderr,
4542 "ppc_elf_check_relocs needs to "
4543 "create relocation for %s\n",
4544 (h && h->root.root.string
4545 ? h->root.root.string : "<unknown>"));
4546#endif
4547 if (sreloc == NULL)
4548 {
c9a2f333
AM
4549 if (htab->elf.dynobj == NULL)
4550 htab->elf.dynobj = abfd;
83bac4b0
NC
4551
4552 sreloc = _bfd_elf_make_dynamic_reloc_section
4553 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4554
25dbc73a 4555 if (sreloc == NULL)
83bac4b0 4556 return FALSE;
25dbc73a 4557 }
7619e7c7 4558
25dbc73a
AM
4559 /* If this is a global symbol, we count the number of
4560 relocations we need for this symbol. */
4561 if (h != NULL)
4562 {
f95f8542
AM
4563 struct elf_dyn_relocs *p;
4564 struct elf_dyn_relocs **rel_head;
4565
91d6fa6a 4566 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4567 p = *rel_head;
4568 if (p == NULL || p->sec != sec)
4569 {
4570 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4571 if (p == NULL)
4572 return FALSE;
4573 p->next = *rel_head;
4574 *rel_head = p;
4575 p->sec = sec;
4576 p->count = 0;
4577 p->pc_count = 0;
4578 }
4579 p->count += 1;
4580 if (!must_be_dyn_reloc (info, r_type))
4581 p->pc_count += 1;
25dbc73a
AM
4582 }
4583 else
4584 {
4585 /* Track dynamic relocs needed for local syms too.
4586 We really need local syms available to do this
4587 easily. Oh well. */
f95f8542
AM
4588 struct ppc_dyn_relocs *p;
4589 struct ppc_dyn_relocs **rel_head;
4590 bfd_boolean is_ifunc;
25dbc73a 4591 asection *s;
6edfbbad 4592 void *vpp;
87d72d41 4593 Elf_Internal_Sym *isym;
6edfbbad 4594
87d72d41
AM
4595 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4596 abfd, r_symndx);
4597 if (isym == NULL)
25dbc73a 4598 return FALSE;
7fce784e 4599
87d72d41
AM
4600 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4601 if (s == NULL)
4602 s = sec;
4603
6edfbbad 4604 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4605 rel_head = (struct ppc_dyn_relocs **) vpp;
4606 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4607 p = *rel_head;
4608 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4609 p = p->next;
4610 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4611 {
4612 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4613 if (p == NULL)
4614 return FALSE;
4615 p->next = *rel_head;
4616 *rel_head = p;
4617 p->sec = sec;
4618 p->ifunc = is_ifunc;
4619 p->count = 0;
4620 }
4621 p->count += 1;
25dbc73a 4622 }
7619e7c7 4623 }
25dbc73a
AM
4624
4625 break;
7619e7c7
AM
4626 }
4627 }
ee05f2fe 4628
25dbc73a
AM
4629 return TRUE;
4630}
4631\f
005d79fd
AM
4632/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4633 and OBFD, and merge non-conflicting ones. */
4634void
50e03d47 4635_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4636{
50e03d47 4637 bfd *obfd = info->output_bfd;
c6e65352
DJ
4638 obj_attribute *in_attr, *in_attrs;
4639 obj_attribute *out_attr, *out_attrs;
34c8bcba 4640
c6e65352
DJ
4641 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4642 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4643
c6e65352
DJ
4644 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4645 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4646
c6e65352 4647 if (in_attr->i != out_attr->i)
34c8bcba 4648 {
005d79fd
AM
4649 int in_fp = in_attr->i & 3;
4650 int out_fp = out_attr->i & 3;
4651
4652 if (in_fp == 0)
34c8bcba 4653 ;
005d79fd
AM
4654 else if (out_fp == 0)
4655 {
4656 out_attr->type = 1;
4657 out_attr->i ^= in_fp;
4658 }
4659 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4660 _bfd_error_handler
695344c0 4661 /* xgettext:c-format */
34c8bcba 4662 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4663 else if (out_fp == 2 && in_fp != 2)
4664 _bfd_error_handler
695344c0 4665 /* xgettext:c-format */
005d79fd
AM
4666 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4667 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4668 _bfd_error_handler
695344c0 4669 /* xgettext:c-format */
005d79fd
AM
4670 (_("Warning: %B uses double-precision hard float, "
4671 "%B uses single-precision hard float"), obfd, ibfd);
4672 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4673 _bfd_error_handler
695344c0 4674 /* xgettext:c-format */
005d79fd
AM
4675 (_("Warning: %B uses double-precision hard float, "
4676 "%B uses single-precision hard float"), ibfd, obfd);
4677
4678 in_fp = in_attr->i & 0xc;
4679 out_fp = out_attr->i & 0xc;
4680 if (in_fp == 0)
4681 ;
4682 else if (out_fp == 0)
4683 {
4684 out_attr->type = 1;
4685 out_attr->i ^= in_fp;
4686 }
4687 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4688 _bfd_error_handler
695344c0 4689 /* xgettext:c-format */
005d79fd
AM
4690 (_("Warning: %B uses 64-bit long double, "
4691 "%B uses 128-bit long double"), ibfd, obfd);
4692 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4693 _bfd_error_handler
695344c0 4694 /* xgettext:c-format */
005d79fd
AM
4695 (_("Warning: %B uses 64-bit long double, "
4696 "%B uses 128-bit long double"), obfd, ibfd);
4697 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4698 _bfd_error_handler
695344c0 4699 /* xgettext:c-format */
005d79fd
AM
4700 (_("Warning: %B uses IBM long double, "
4701 "%B uses IEEE long double"), ibfd, obfd);
4702 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4703 _bfd_error_handler
695344c0 4704 /* xgettext:c-format */
005d79fd
AM
4705 (_("Warning: %B uses IBM long double, "
4706 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4707 }
005d79fd
AM
4708}
4709
4710/* Merge object attributes from IBFD into OBFD. Warn if
4711 there are conflicting attributes. */
4712static bfd_boolean
50e03d47 4713ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4714{
50e03d47 4715 bfd *obfd;
005d79fd
AM
4716 obj_attribute *in_attr, *in_attrs;
4717 obj_attribute *out_attr, *out_attrs;
4718
50e03d47 4719 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4720
50e03d47 4721 obfd = info->output_bfd;
005d79fd
AM
4722 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4723 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4724
4725 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4726 merge non-conflicting ones. */
4727 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4728 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4729 if (in_attr->i != out_attr->i)
4730 {
005d79fd
AM
4731 int in_vec = in_attr->i & 3;
4732 int out_vec = out_attr->i & 3;
c6e65352 4733
005d79fd
AM
4734 if (in_vec == 0)
4735 ;
4736 else if (out_vec == 0)
c6e65352 4737 {
005d79fd
AM
4738 out_attr->type = 1;
4739 out_attr->i = in_vec;
c6e65352 4740 }
c6e65352
DJ
4741 /* For now, allow generic to transition to AltiVec or SPE
4742 without a warning. If GCC marked files with their stack
4743 alignment and used don't-care markings for files which are
4744 not affected by the vector ABI, we could warn about this
4745 case too. */
005d79fd 4746 else if (in_vec == 1)
c6e65352 4747 ;
005d79fd
AM
4748 else if (out_vec == 1)
4749 {
4750 out_attr->type = 1;
4751 out_attr->i = in_vec;
4752 }
4753 else if (out_vec < in_vec)
c6e65352 4754 _bfd_error_handler
695344c0 4755 /* xgettext:c-format */
005d79fd
AM
4756 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4757 obfd, ibfd);
4758 else if (out_vec > in_vec)
c6e65352 4759 _bfd_error_handler
695344c0 4760 /* xgettext:c-format */
005d79fd
AM
4761 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4762 ibfd, obfd);
34c8bcba
JM
4763 }
4764
f82e0623
NF
4765 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4766 and merge non-conflicting ones. */
4767 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4768 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4769 if (in_attr->i != out_attr->i)
4770 {
005d79fd
AM
4771 int in_struct = in_attr->i & 3;
4772 int out_struct = out_attr->i & 3;
4773
4774 if (in_struct == 0 || in_struct == 3)
f82e0623 4775 ;
005d79fd
AM
4776 else if (out_struct == 0)
4777 {
4778 out_attr->type = 1;
4779 out_attr->i = in_struct;
4780 }
4781 else if (out_struct < in_struct)
4782 _bfd_error_handler
695344c0 4783 /* xgettext:c-format */
005d79fd
AM
4784 (_("Warning: %B uses r3/r4 for small structure returns, "
4785 "%B uses memory"), obfd, ibfd);
4786 else if (out_struct > in_struct)
4787 _bfd_error_handler
695344c0 4788 /* xgettext:c-format */
005d79fd
AM
4789 (_("Warning: %B uses r3/r4 for small structure returns, "
4790 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4791 }
4792
34c8bcba 4793 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4794 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4795
4796 return TRUE;
4797}
4798
8853c3d3
AM
4799/* Merge backend specific data from an object file to the output
4800 object file when linking. */
4801
4802static bfd_boolean
50e03d47 4803ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4804{
50e03d47 4805 bfd *obfd = info->output_bfd;
8853c3d3
AM
4806 flagword old_flags;
4807 flagword new_flags;
4808 bfd_boolean error;
4809
0c8d6e5c 4810 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4811 return TRUE;
4812
cc643b88 4813 /* Check if we have the same endianness. */
50e03d47 4814 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4815 return FALSE;
4816
50e03d47 4817 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4818 return FALSE;
4819
8853c3d3
AM
4820 new_flags = elf_elfheader (ibfd)->e_flags;
4821 old_flags = elf_elfheader (obfd)->e_flags;
4822 if (!elf_flags_init (obfd))
4823 {
4824 /* First call, no flags set. */
4825 elf_flags_init (obfd) = TRUE;
4826 elf_elfheader (obfd)->e_flags = new_flags;
4827 }
4828
4829 /* Compatible flags are ok. */
4830 else if (new_flags == old_flags)
4831 ;
4832
4833 /* Incompatible flags. */
4834 else
4835 {
4836 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4837 to be linked with either. */
4838 error = FALSE;
4839 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4840 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4841 {
4842 error = TRUE;
4eca0228 4843 _bfd_error_handler
8853c3d3
AM
4844 (_("%B: compiled with -mrelocatable and linked with "
4845 "modules compiled normally"), ibfd);
4846 }
4847 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4848 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4849 {
4850 error = TRUE;
4eca0228 4851 _bfd_error_handler
8853c3d3
AM
4852 (_("%B: compiled normally and linked with "
4853 "modules compiled with -mrelocatable"), ibfd);
4854 }
4855
4856 /* The output is -mrelocatable-lib iff both the input files are. */
4857 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4858 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4859
4860 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4861 but each input file is either -mrelocatable or -mrelocatable-lib. */
4862 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4863 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4864 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4865 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4866
4867 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4868 any module uses it. */
4869 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4870
4871 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4872 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4873
4874 /* Warn about any other mismatches. */
4875 if (new_flags != old_flags)
4876 {
4877 error = TRUE;
4eca0228 4878 _bfd_error_handler
695344c0 4879 /* xgettext:c-format */
8853c3d3
AM
4880 (_("%B: uses different e_flags (0x%lx) fields "
4881 "than previous modules (0x%lx)"),
4882 ibfd, (long) new_flags, (long) old_flags);
4883 }
4884
4885 if (error)
4886 {
4887 bfd_set_error (bfd_error_bad_value);
4888 return FALSE;
4889 }
4890 }
4891
4892 return TRUE;
4893}
b9c361e0
JL
4894
4895static void
95f0d0d2 4896ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
4897 asection *input_section,
4898 unsigned long offset,
95f0d0d2 4899 bfd_byte *loc,
86c95733 4900 bfd_vma value,
08dc996f
AM
4901 split16_format_type split16_format,
4902 bfd_boolean fixup)
b9c361e0 4903{
08dc996f 4904 unsigned int insn, opcode, top5;
b9c361e0 4905
95f0d0d2 4906 insn = bfd_get_32 (input_bfd, loc);
08dc996f
AM
4907 opcode = insn & 0xf300f800;
4908 if (opcode == E_OR2I_INSN
4909 || opcode == E_AND2I_DOT_INSN
4910 || opcode == E_OR2IS_INSN
4911 || opcode == E_LIS_INSN
4912 || opcode == E_AND2IS_DOT_INSN)
4913 {
4914 if (split16_format != split16a_type)
4915 {
4916 if (fixup)
4917 split16_format = split16a_type;
4918 else
4919 _bfd_error_handler
4920 /* xgettext:c-format */
4921 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4922 input_bfd, input_section, offset, opcode);
4923 }
4924 }
4925 else if (opcode == E_ADD2I_DOT_INSN
4926 || opcode == E_ADD2IS_INSN
4927 || opcode == E_CMP16I_INSN
4928 || opcode == E_MULL2I_INSN
4929 || opcode == E_CMPL16I_INSN
4930 || opcode == E_CMPH16I_INSN
4931 || opcode == E_CMPHL16I_INSN)
4932 {
4933 if (split16_format != split16d_type)
4934 {
4935 if (fixup)
4936 split16_format = split16d_type;
4937 else
4938 _bfd_error_handler
4939 /* xgettext:c-format */
4940 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4941 input_bfd, input_section, offset, opcode);
4942 }
4943 }
86c95733 4944 top5 = value & 0xf800;
08dc996f
AM
4945 top5 = top5 << (split16_format == split16a_type ? 5 : 9);
4946 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x1f007ff);
b9c361e0 4947 insn |= top5;
86c95733 4948 insn |= value & 0x7ff;
95f0d0d2 4949 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 4950}
8853c3d3 4951\f
d7128ce4
AM
4952/* Choose which PLT scheme to use, and set .plt flags appropriately.
4953 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4954int
4955ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4956 struct bfd_link_info *info)
d7128ce4
AM
4957{
4958 struct ppc_elf_link_hash_table *htab;
9d8504b1 4959 flagword flags;
d7128ce4
AM
4960
4961 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4962
4963 if (htab->plt_type == PLT_UNSET)
016687f8 4964 {
b3874e1a
AM
4965 struct elf_link_hash_entry *h;
4966
5446cbdf 4967 if (htab->params->plt_style == PLT_OLD)
016687f8 4968 htab->plt_type = PLT_OLD;
0e1862bb 4969 else if (bfd_link_pic (info)
b3874e1a
AM
4970 && htab->elf.dynamic_sections_created
4971 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4972 FALSE, FALSE, TRUE)) != NULL
4973 && (h->type == STT_FUNC
4974 || h->needs_plt)
4975 && h->ref_regular
4976 && !(SYMBOL_CALLS_LOCAL (info, h)
4977 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4978 && h->root.type == bfd_link_hash_undefweak)))
4979 {
4980 /* Profiling of shared libs (and pies) is not supported with
4981 secure plt, because ppc32 does profiling before a
4982 function prologue and a secure plt pic call stubs needs
4983 r30 to be set up. */
4984 htab->plt_type = PLT_OLD;
4985 }
016687f8
AM
4986 else
4987 {
4988 bfd *ibfd;
5446cbdf 4989 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4990
4991 /* Look through the reloc flags left by ppc_elf_check_relocs.
4992 Use the old style bss plt if a file makes plt calls
4993 without using the new relocs, and if ld isn't given
4994 --secure-plt and we never see REL16 relocs. */
4995 if (plt_type == PLT_UNSET)
4996 plt_type = PLT_OLD;
c72f2fb2 4997 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 4998 if (is_ppc_elf (ibfd))
016687f8
AM
4999 {
5000 if (ppc_elf_tdata (ibfd)->has_rel16)
5001 plt_type = PLT_NEW;
5002 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5003 {
5004 plt_type = PLT_OLD;
5005 htab->old_bfd = ibfd;
5006 break;
5007 }
5008 }
5009 htab->plt_type = plt_type;
5010 }
5011 }
5446cbdf 5012 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5013 {
5014 if (htab->old_bfd != NULL)
5015 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5016 htab->old_bfd);
5017 else
5018 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5019 }
d7128ce4 5020
4a3dc543 5021 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5022
4a3dc543 5023 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5024 {
5025 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5026 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5027
5028 /* The new PLT is a loaded section. */
ce558b89
AM
5029 if (htab->elf.splt != NULL
5030 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5031 return -1;
5032
5033 /* The new GOT is not executable. */
ce558b89
AM
5034 if (htab->elf.sgot != NULL
5035 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5036 return -1;
d7128ce4
AM
5037 }
5038 else
5039 {
5040 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5041 if (htab->glink != NULL
5042 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5043 return -1;
d7128ce4 5044 }
4a3dc543 5045 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5046}
5047\f
25dbc73a
AM
5048/* Return the section that should be marked against GC for a given
5049 relocation. */
586119b3 5050
25dbc73a
AM
5051static asection *
5052ppc_elf_gc_mark_hook (asection *sec,
07adf181 5053 struct bfd_link_info *info,
25dbc73a
AM
5054 Elf_Internal_Rela *rel,
5055 struct elf_link_hash_entry *h,
5056 Elf_Internal_Sym *sym)
5057{
5058 if (h != NULL)
07adf181
AM
5059 switch (ELF32_R_TYPE (rel->r_info))
5060 {
5061 case R_PPC_GNU_VTINHERIT:
5062 case R_PPC_GNU_VTENTRY:
5063 return NULL;
5064 }
5065
5066 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5067}
a876ecf9 5068
25dbc73a
AM
5069/* Update the got, plt and dynamic reloc reference counts for the
5070 section being removed. */
5071
5072static bfd_boolean
5073ppc_elf_gc_sweep_hook (bfd *abfd,
5074 struct bfd_link_info *info,
5075 asection *sec,
5076 const Elf_Internal_Rela *relocs)
5077{
5078 struct ppc_elf_link_hash_table *htab;
5079 Elf_Internal_Shdr *symtab_hdr;
5080 struct elf_link_hash_entry **sym_hashes;
5081 bfd_signed_vma *local_got_refcounts;
5082 const Elf_Internal_Rela *rel, *relend;
a6aa5195 5083 asection *got2;
25dbc73a 5084
0e1862bb 5085 if (bfd_link_relocatable (info))
7dda2462
TG
5086 return TRUE;
5087
c87b5a93
AM
5088 if ((sec->flags & SEC_ALLOC) == 0)
5089 return TRUE;
5090
25dbc73a
AM
5091 elf_section_data (sec)->local_dynrel = NULL;
5092
5093 htab = ppc_elf_hash_table (info);
0ffa91dd 5094 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
5095 sym_hashes = elf_sym_hashes (abfd);
5096 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 5097 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
5098
5099 relend = relocs + sec->reloc_count;
5100 for (rel = relocs; rel < relend; rel++)
5101 {
5102 unsigned long r_symndx;
5103 enum elf_ppc_reloc_type r_type;
5104 struct elf_link_hash_entry *h = NULL;
5105
5106 r_symndx = ELF32_R_SYM (rel->r_info);
5107 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 5108 {
6061a67d 5109 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
5110 struct ppc_elf_link_hash_entry *eh;
5111
5112 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5113 while (h->root.type == bfd_link_hash_indirect
5114 || h->root.type == bfd_link_hash_warning)
5115 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5116 eh = (struct ppc_elf_link_hash_entry *) h;
5117
5118 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5119 if (p->sec == sec)
5120 {
5121 /* Everything must go for SEC. */
5122 *pp = p->next;
5123 break;
5124 }
a876ecf9 5125 }
ee05f2fe 5126
25dbc73a 5127 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
5128 if (!htab->is_vxworks
5129 && h == NULL
5130 && local_got_refcounts != NULL
0e1862bb 5131 && (!bfd_link_pic (info)
de972ffa 5132 || is_branch_reloc (r_type)))
e054468f 5133 {
de972ffa
AM
5134 struct plt_entry **local_plt = (struct plt_entry **)
5135 (local_got_refcounts + symtab_hdr->sh_info);
5136 char *local_got_tls_masks = (char *)
5137 (local_plt + symtab_hdr->sh_info);
5138 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 5139 {
de972ffa 5140 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
5141 bfd_vma addend = 0;
5142 struct plt_entry *ent;
5143
0e1862bb 5144 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5145 addend = rel->r_addend;
5146 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
5147 if (ent->plt.refcount > 0)
5148 ent->plt.refcount -= 1;
5149 continue;
5150 }
5151 }
5152
25dbc73a 5153 switch (r_type)
ee05f2fe 5154 {
25dbc73a
AM
5155 case R_PPC_GOT_TLSLD16:
5156 case R_PPC_GOT_TLSLD16_LO:
5157 case R_PPC_GOT_TLSLD16_HI:
5158 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
5159 case R_PPC_GOT_TLSGD16:
5160 case R_PPC_GOT_TLSGD16_LO:
5161 case R_PPC_GOT_TLSGD16_HI:
5162 case R_PPC_GOT_TLSGD16_HA:
5163 case R_PPC_GOT_TPREL16:
5164 case R_PPC_GOT_TPREL16_LO:
5165 case R_PPC_GOT_TPREL16_HI:
5166 case R_PPC_GOT_TPREL16_HA:
5167 case R_PPC_GOT_DTPREL16:
5168 case R_PPC_GOT_DTPREL16_LO:
5169 case R_PPC_GOT_DTPREL16_HI:
5170 case R_PPC_GOT_DTPREL16_HA:
5171 case R_PPC_GOT16:
5172 case R_PPC_GOT16_LO:
5173 case R_PPC_GOT16_HI:
5174 case R_PPC_GOT16_HA:
5175 if (h != NULL)
ee05f2fe 5176 {
25dbc73a
AM
5177 if (h->got.refcount > 0)
5178 h->got.refcount--;
0e1862bb 5179 if (!bfd_link_pic (info))
91e21fb7
AM
5180 {
5181 struct plt_entry *ent;
5182
5183 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 5184 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
5185 ent->plt.refcount -= 1;
5186 }
ee05f2fe 5187 }
25dbc73a
AM
5188 else if (local_got_refcounts != NULL)
5189 {
5190 if (local_got_refcounts[r_symndx] > 0)
5191 local_got_refcounts[r_symndx]--;
5192 }
5193 break;
ee05f2fe 5194
25dbc73a
AM
5195 case R_PPC_REL24:
5196 case R_PPC_REL14:
5197 case R_PPC_REL14_BRTAKEN:
5198 case R_PPC_REL14_BRNTAKEN:
5199 case R_PPC_REL32:
3b36f7e6 5200 if (h == NULL || h == htab->elf.hgot)
25dbc73a 5201 break;
1a0670f3 5202 /* Fall through. */
ee05f2fe 5203
25dbc73a
AM
5204 case R_PPC_ADDR32:
5205 case R_PPC_ADDR24:
5206 case R_PPC_ADDR16:
5207 case R_PPC_ADDR16_LO:
5208 case R_PPC_ADDR16_HI:
5209 case R_PPC_ADDR16_HA:
5210 case R_PPC_ADDR14:
5211 case R_PPC_ADDR14_BRTAKEN:
5212 case R_PPC_ADDR14_BRNTAKEN:
5213 case R_PPC_UADDR32:
5214 case R_PPC_UADDR16:
0e1862bb 5215 if (bfd_link_pic (info))
87538722 5216 break;
1a0670f3 5217 /* Fall through. */
87538722 5218
25dbc73a
AM
5219 case R_PPC_PLT32:
5220 case R_PPC_PLTREL24:
87538722 5221 case R_PPC_PLTREL32:
25dbc73a
AM
5222 case R_PPC_PLT16_LO:
5223 case R_PPC_PLT16_HI:
5224 case R_PPC_PLT16_HA:
5225 if (h != NULL)
5226 {
a877a2b6
AM
5227 bfd_vma addend = 0;
5228 struct plt_entry *ent;
5229
0e1862bb 5230 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5231 addend = rel->r_addend;
5232 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5233 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5234 ent->plt.refcount -= 1;
25dbc73a
AM
5235 }
5236 break;
ee05f2fe 5237
25dbc73a
AM
5238 default:
5239 break;
5240 }
7fce784e 5241 }
7fce784e
AS
5242 return TRUE;
5243}
25dbc73a 5244\f
3a71aa26
AM
5245/* Set plt output section type, htab->tls_get_addr, and call the
5246 generic ELF tls_setup function. */
7fce784e 5247
25dbc73a 5248asection *
5446cbdf 5249ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5250{
25dbc73a 5251 struct ppc_elf_link_hash_table *htab;
7fce784e 5252
25dbc73a 5253 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5254 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5255 FALSE, FALSE, TRUE);
f01f1741
AM
5256 if (htab->plt_type != PLT_NEW)
5257 htab->params->no_tls_get_addr_opt = TRUE;
5258
5446cbdf 5259 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5260 {
5261 struct elf_link_hash_entry *opt, *tga;
5262 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5263 FALSE, FALSE, TRUE);
5264 if (opt != NULL
5265 && (opt->root.type == bfd_link_hash_defined
5266 || opt->root.type == bfd_link_hash_defweak))
5267 {
5268 /* If glibc supports an optimized __tls_get_addr call stub,
5269 signalled by the presence of __tls_get_addr_opt, and we'll
5270 be calling __tls_get_addr via a plt call stub, then
5271 make __tls_get_addr point to __tls_get_addr_opt. */
5272 tga = htab->tls_get_addr;
5273 if (htab->elf.dynamic_sections_created
5274 && tga != NULL
5275 && (tga->type == STT_FUNC
5276 || tga->needs_plt)
5277 && !(SYMBOL_CALLS_LOCAL (info, tga)
5278 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5279 && tga->root.type == bfd_link_hash_undefweak)))
5280 {
5281 struct plt_entry *ent;
32af9f6e
AM
5282 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5283 if (ent->plt.refcount > 0)
5284 break;
5285 if (ent != NULL)
a7f2871e
AM
5286 {
5287 tga->root.type = bfd_link_hash_indirect;
5288 tga->root.u.i.link = &opt->root;
5289 ppc_elf_copy_indirect_symbol (info, opt, tga);
3bd43ebc 5290 opt->forced_local = 0;
a7f2871e
AM
5291 if (opt->dynindx != -1)
5292 {
5293 /* Use __tls_get_addr_opt in dynamic relocations. */
5294 opt->dynindx = -1;
5295 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5296 opt->dynstr_index);
5297 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5298 return FALSE;
5299 }
5300 htab->tls_get_addr = opt;
5301 }
5302 }
5303 }
5304 else
5446cbdf 5305 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5306 }
4a3dc543 5307 if (htab->plt_type == PLT_NEW
ce558b89
AM
5308 && htab->elf.splt != NULL
5309 && htab->elf.splt->output_section != NULL)
d7128ce4 5310 {
ce558b89
AM
5311 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5312 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5313 }
5314
25dbc73a 5315 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5316}
5317
3a71aa26
AM
5318/* Return TRUE iff REL is a branch reloc with a global symbol matching
5319 HASH. */
5320
5321static bfd_boolean
5322branch_reloc_hash_match (const bfd *ibfd,
5323 const Elf_Internal_Rela *rel,
5324 const struct elf_link_hash_entry *hash)
5325{
5326 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5327 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5328 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5329
e054468f 5330 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5331 {
5332 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5333 struct elf_link_hash_entry *h;
5334
5335 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5336 while (h->root.type == bfd_link_hash_indirect
5337 || h->root.type == bfd_link_hash_warning)
5338 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5339 if (h == hash)
5340 return TRUE;
5341 }
5342 return FALSE;
5343}
5344
25dbc73a
AM
5345/* Run through all the TLS relocs looking for optimization
5346 opportunities. */
252b5132 5347
25dbc73a
AM
5348bfd_boolean
5349ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5350 struct bfd_link_info *info)
252b5132 5351{
7fce784e 5352 bfd *ibfd;
25dbc73a
AM
5353 asection *sec;
5354 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5355 int pass;
252b5132 5356
3cbc1e5e 5357 if (!bfd_link_executable (info))
25dbc73a 5358 return TRUE;
252b5132 5359
7619e7c7 5360 htab = ppc_elf_hash_table (info);
663a1470
AM
5361 if (htab == NULL)
5362 return FALSE;
5363
b7fcf6f6
AM
5364 /* Make two passes through the relocs. First time check that tls
5365 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5366 followed by such a call. If they are not, don't do any tls
5367 optimization. On the second pass twiddle tls_mask flags to
5368 notify relocate_section that optimization can be done, and
5369 adjust got and plt refcounts. */
b7fcf6f6 5370 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5371 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5372 {
5373 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5374 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5375 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5376
b7fcf6f6
AM
5377 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5378 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5379 {
5380 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5381 int expecting_tls_get_addr = 0;
252b5132 5382
b7fcf6f6
AM
5383 /* Read the relocations. */
5384 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5385 info->keep_memory);
5386 if (relstart == NULL)
5387 return FALSE;
7619e7c7 5388
b7fcf6f6
AM
5389 relend = relstart + sec->reloc_count;
5390 for (rel = relstart; rel < relend; rel++)
5391 {
5392 enum elf_ppc_reloc_type r_type;
5393 unsigned long r_symndx;
5394 struct elf_link_hash_entry *h = NULL;
5395 char *tls_mask;
5396 char tls_set, tls_clear;
5397 bfd_boolean is_local;
b7fcf6f6
AM
5398 bfd_signed_vma *got_count;
5399
5400 r_symndx = ELF32_R_SYM (rel->r_info);
5401 if (r_symndx >= symtab_hdr->sh_info)
5402 {
5403 struct elf_link_hash_entry **sym_hashes;
7fce784e 5404
b7fcf6f6
AM
5405 sym_hashes = elf_sym_hashes (ibfd);
5406 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5407 while (h->root.type == bfd_link_hash_indirect
5408 || h->root.type == bfd_link_hash_warning)
5409 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5410 }
7619e7c7 5411
b7fcf6f6
AM
5412 is_local = FALSE;
5413 if (h == NULL
5414 || !h->def_dynamic)
5415 is_local = TRUE;
7619e7c7 5416
b7fcf6f6 5417 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5418 /* If this section has old-style __tls_get_addr calls
5419 without marker relocs, then check that each
5420 __tls_get_addr call reloc is preceded by a reloc
5421 that conceivably belongs to the __tls_get_addr arg
5422 setup insn. If we don't find matching arg setup
5423 relocs, don't do any tls optimization. */
5424 if (pass == 0
5425 && sec->has_tls_get_addr_call
5426 && h != NULL
5427 && h == htab->tls_get_addr
5428 && !expecting_tls_get_addr
5429 && is_branch_reloc (r_type))
5430 {
25f53a85 5431 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5432 "TLS optimization disabled\n",
5433 ibfd, sec, rel->r_offset);
5434 if (elf_section_data (sec)->relocs != relstart)
5435 free (relstart);
5436 return TRUE;
5437 }
5438
5439 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5440 switch (r_type)
5441 {
5442 case R_PPC_GOT_TLSLD16:
5443 case R_PPC_GOT_TLSLD16_LO:
5444 expecting_tls_get_addr = 1;
1a0670f3 5445 /* Fall through. */
b7fcf6f6
AM
5446
5447 case R_PPC_GOT_TLSLD16_HI:
5448 case R_PPC_GOT_TLSLD16_HA:
5449 /* These relocs should never be against a symbol
5450 defined in a shared lib. Leave them alone if
5451 that turns out to be the case. */
5452 if (!is_local)
5453 continue;
5454
5455 /* LD -> LE */
5456 tls_set = 0;
5457 tls_clear = TLS_LD;
5458 break;
5459
5460 case R_PPC_GOT_TLSGD16:
5461 case R_PPC_GOT_TLSGD16_LO:
5462 expecting_tls_get_addr = 1;
1a0670f3 5463 /* Fall through. */
b7fcf6f6
AM
5464
5465 case R_PPC_GOT_TLSGD16_HI:
5466 case R_PPC_GOT_TLSGD16_HA:
5467 if (is_local)
5468 /* GD -> LE */
5469 tls_set = 0;
5470 else
5471 /* GD -> IE */
5472 tls_set = TLS_TLS | TLS_TPRELGD;
5473 tls_clear = TLS_GD;
5474 break;
5475
5476 case R_PPC_GOT_TPREL16:
5477 case R_PPC_GOT_TPREL16_LO:
5478 case R_PPC_GOT_TPREL16_HI:
5479 case R_PPC_GOT_TPREL16_HA:
5480 if (is_local)
5481 {
5482 /* IE -> LE */
5483 tls_set = 0;
5484 tls_clear = TLS_TPREL;
5485 break;
5486 }
5487 else
5488 continue;
5489
32af9f6e
AM
5490 case R_PPC_TLSGD:
5491 case R_PPC_TLSLD:
5492 expecting_tls_get_addr = 2;
5493 tls_set = 0;
5494 tls_clear = 0;
5495 break;
5496
b7fcf6f6 5497 default:
25dbc73a 5498 continue;
b7fcf6f6 5499 }
25dbc73a 5500
b7fcf6f6
AM
5501 if (pass == 0)
5502 {
727fc41e 5503 if (!expecting_tls_get_addr
32af9f6e
AM
5504 || (expecting_tls_get_addr == 1
5505 && !sec->has_tls_get_addr_call))
b7fcf6f6 5506 continue;
25dbc73a 5507
3a71aa26
AM
5508 if (rel + 1 < relend
5509 && branch_reloc_hash_match (ibfd, rel + 1,
5510 htab->tls_get_addr))
5511 continue;
25dbc73a 5512
b7fcf6f6
AM
5513 /* Uh oh, we didn't find the expected call. We
5514 could just mark this symbol to exclude it
5515 from tls optimization but it's safer to skip
663a1470 5516 the entire optimization. */
25f53a85 5517 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5518 "TLS optimization disabled\n"),
5519 ibfd, sec, rel->r_offset);
5520 if (elf_section_data (sec)->relocs != relstart)
5521 free (relstart);
5522 return TRUE;
b7fcf6f6 5523 }
25dbc73a 5524
32af9f6e
AM
5525 if (expecting_tls_get_addr)
5526 {
5527 struct plt_entry *ent;
5528 bfd_vma addend = 0;
5529
0e1862bb 5530 if (bfd_link_pic (info)
32af9f6e
AM
5531 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5532 addend = rel[1].r_addend;
5533 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5534 got2, addend);
5535 if (ent != NULL && ent->plt.refcount > 0)
5536 ent->plt.refcount -= 1;
5537
5538 if (expecting_tls_get_addr == 2)
5539 continue;
5540 }
5541
b7fcf6f6
AM
5542 if (h != NULL)
5543 {
5544 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5545 got_count = &h->got.refcount;
5546 }
5547 else
5548 {
b7fcf6f6 5549 bfd_signed_vma *lgot_refs;
e054468f 5550 struct plt_entry **local_plt;
b7fcf6f6 5551 char *lgot_masks;
25dbc73a 5552
b7fcf6f6
AM
5553 if (locsyms == NULL)
5554 {
5555 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5556 if (locsyms == NULL)
5557 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5558 symtab_hdr->sh_info,
5559 0, NULL, NULL, NULL);
5560 if (locsyms == NULL)
5561 {
5562 if (elf_section_data (sec)->relocs != relstart)
5563 free (relstart);
5564 return FALSE;
5565 }
5566 }
b7fcf6f6
AM
5567 lgot_refs = elf_local_got_refcounts (ibfd);
5568 if (lgot_refs == NULL)
5569 abort ();
e054468f
AM
5570 local_plt = (struct plt_entry **)
5571 (lgot_refs + symtab_hdr->sh_info);
5572 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5573 tls_mask = &lgot_masks[r_symndx];
5574 got_count = &lgot_refs[r_symndx];
5575 }
25dbc73a 5576
b7fcf6f6
AM
5577 if (tls_set == 0)
5578 {
5579 /* We managed to get rid of a got entry. */
5580 if (*got_count > 0)
5581 *got_count -= 1;
5582 }
25dbc73a 5583
b7fcf6f6
AM
5584 *tls_mask |= tls_set;
5585 *tls_mask &= ~tls_clear;
5586 }
25dbc73a 5587
b7fcf6f6
AM
5588 if (elf_section_data (sec)->relocs != relstart)
5589 free (relstart);
5590 }
5591
5592 if (locsyms != NULL
5593 && (symtab_hdr->contents != (unsigned char *) locsyms))
5594 {
5595 if (!info->keep_memory)
5596 free (locsyms);
5597 else
5598 symtab_hdr->contents = (unsigned char *) locsyms;
5599 }
5600 }
25dbc73a
AM
5601 return TRUE;
5602}
5603\f
625af618
AM
5604/* Return true if we have dynamic relocs that apply to read-only sections. */
5605
5606static bfd_boolean
5607readonly_dynrelocs (struct elf_link_hash_entry *h)
5608{
6061a67d 5609 struct elf_dyn_relocs *p;
625af618
AM
5610
5611 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5612 {
5613 asection *s = p->sec->output_section;
5614
5615 if (s != NULL
5616 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5617 == (SEC_READONLY | SEC_ALLOC)))
5618 return TRUE;
5619 }
5620 return FALSE;
5621}
5622
25dbc73a
AM
5623/* Adjust a symbol defined by a dynamic object and referenced by a
5624 regular object. The current definition is in some section of the
5625 dynamic object, but we're not including those sections. We have to
5626 change the definition to something the rest of the link can
5627 understand. */
7fce784e 5628
25dbc73a
AM
5629static bfd_boolean
5630ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5631 struct elf_link_hash_entry *h)
5632{
5633 struct ppc_elf_link_hash_table *htab;
5634 asection *s;
7fce784e 5635
25dbc73a
AM
5636#ifdef DEBUG
5637 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5638 h->root.root.string);
5639#endif
252b5132 5640
25dbc73a
AM
5641 /* Make sure we know what is going on here. */
5642 htab = ppc_elf_hash_table (info);
5643 BFD_ASSERT (htab->elf.dynobj != NULL
5644 && (h->needs_plt
91e21fb7 5645 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5646 || h->u.weakdef != NULL
5647 || (h->def_dynamic
5648 && h->ref_regular
5649 && !h->def_regular)));
252b5132 5650
25dbc73a
AM
5651 /* Deal with function syms. */
5652 if (h->type == STT_FUNC
e054468f 5653 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5654 || h->needs_plt)
5655 {
5656 /* Clear procedure linkage table information for any symbol that
5657 won't need a .plt entry. */
a6aa5195
AM
5658 struct plt_entry *ent;
5659 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5660 if (ent->plt.refcount > 0)
5661 break;
5662 if (ent == NULL
e054468f
AM
5663 || (h->type != STT_GNU_IFUNC
5664 && (SYMBOL_CALLS_LOCAL (info, h)
5665 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5666 && h->root.type == bfd_link_hash_undefweak))))
252b5132 5667 {
25dbc73a 5668 /* A PLT entry is not required/allowed when:
252b5132 5669
25dbc73a
AM
5670 1. We are not using ld.so; because then the PLT entry
5671 can't be set up, so we can't use one. In this case,
5672 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5673
25dbc73a
AM
5674 2. GC has rendered the entry unused.
5675
5676 3. We know for certain that a call to this symbol
5677 will go to this object, or will remain undefined. */
a6aa5195 5678 h->plt.plist = NULL;
25dbc73a 5679 h->needs_plt = 0;
d1eca1e4 5680 h->pointer_equality_needed = 0;
25dbc73a 5681 }
625af618
AM
5682 else
5683 {
d1eca1e4
AM
5684 /* Taking a function's address in a read/write section
5685 doesn't require us to define the function symbol in the
1009ef28 5686 executable on a plt call stub. A dynamic reloc can
d1eca1e4
AM
5687 be used instead. */
5688 if (h->pointer_equality_needed
1009ef28
AM
5689 && h->type != STT_GNU_IFUNC
5690 && !htab->is_vxworks
5691 && !ppc_elf_hash_entry (h)->has_sda_refs
d1eca1e4
AM
5692 && !readonly_dynrelocs (h))
5693 {
5694 h->pointer_equality_needed = 0;
5695 h->non_got_ref = 0;
5696 }
5697
25f23106
AM
5698 /* After adjust_dynamic_symbol, non_got_ref set in the
5699 non-shared case means that we have allocated space in
5700 .dynbss for the symbol and thus dyn_relocs for this
5701 symbol should be discarded.
625af618
AM
5702 If we get here we know we are making a PLT entry for this
5703 symbol, and in an executable we'd normally resolve
5704 relocations against this symbol to the PLT entry. Allow
5705 dynamic relocs if the reference is weak, and the dynamic
5706 relocs will not cause text relocation. */
d1eca1e4
AM
5707 else if (!h->ref_regular_nonweak
5708 && h->non_got_ref
5709 && h->type != STT_GNU_IFUNC
5710 && !htab->is_vxworks
5711 && !ppc_elf_hash_entry (h)->has_sda_refs
5712 && !readonly_dynrelocs (h))
625af618
AM
5713 h->non_got_ref = 0;
5714 }
d3e454b9 5715 h->protected_def = 0;
25dbc73a 5716 return TRUE;
252b5132 5717 }
25dbc73a 5718 else
a6aa5195 5719 h->plt.plist = NULL;
252b5132 5720
25dbc73a
AM
5721 /* If this is a weak symbol, and there is a real definition, the
5722 processor independent code will have arranged for us to see the
5723 real definition first, and we can just use the same value. */
5724 if (h->u.weakdef != NULL)
252b5132 5725 {
25dbc73a
AM
5726 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5727 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5728 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5729 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5730 if (ELIMINATE_COPY_RELOCS)
5731 h->non_got_ref = h->u.weakdef->non_got_ref;
5732 return TRUE;
5733 }
dc810e39 5734
25dbc73a
AM
5735 /* This is a reference to a symbol defined by a dynamic object which
5736 is not a function. */
252b5132 5737
25dbc73a
AM
5738 /* If we are creating a shared library, we must presume that the
5739 only references to the symbol are via the global offset table.
5740 For such cases we need not do anything here; the relocations will
5741 be handled correctly by relocate_section. */
0e1862bb 5742 if (bfd_link_pic (info))
d3e454b9
AM
5743 {
5744 h->protected_def = 0;
5745 return TRUE;
5746 }
252b5132 5747
25dbc73a
AM
5748 /* If there are no references to this symbol that do not use the
5749 GOT, we don't need to generate a copy reloc. */
5750 if (!h->non_got_ref)
d3e454b9
AM
5751 {
5752 h->protected_def = 0;
5753 return TRUE;
5754 }
5755
5756 /* Protected variables do not work with .dynbss. The copy in
5757 .dynbss won't be used by the shared library with the protected
5758 definition for the variable. Editing to PIC, or text relocations
5759 are preferable to an incorrect program. */
5760 if (h->protected_def)
5761 {
5762 if (ELIMINATE_COPY_RELOCS
5763 && ppc_elf_hash_entry (h)->has_addr16_ha
5764 && ppc_elf_hash_entry (h)->has_addr16_lo
5765 && htab->params->pic_fixup == 0
5766 && info->disable_target_specific_optimizations <= 1)
5767 htab->params->pic_fixup = 1;
5768 h->non_got_ref = 0;
5769 return TRUE;
5770 }
25dbc73a 5771
a127494f
AM
5772 /* If -z nocopyreloc was given, we won't generate them either. */
5773 if (info->nocopyreloc)
5774 {
5775 h->non_got_ref = 0;
5776 return TRUE;
5777 }
5778
cfd2c773
NS
5779 /* If we didn't find any dynamic relocs in read-only sections, then
5780 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5781 We can't do this if there are any small data relocations. This
5782 doesn't work on VxWorks, where we can not have dynamic
5783 relocations (other than copy and jump slot relocations) in an
5784 executable. */
4dc4a9a5 5785 if (ELIMINATE_COPY_RELOCS
cfd2c773 5786 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5787 && !htab->is_vxworks
5788 && !h->def_regular
5789 && !readonly_dynrelocs (h))
25dbc73a 5790 {
625af618
AM
5791 h->non_got_ref = 0;
5792 return TRUE;
252b5132
RH
5793 }
5794
25dbc73a
AM
5795 /* We must allocate the symbol in our .dynbss section, which will
5796 become part of the .bss section of the executable. There will be
5797 an entry for this symbol in the .dynsym section. The dynamic
5798 object will contain position independent code, so all references
5799 from the dynamic object to this symbol will go through the global
5800 offset table. The dynamic linker will use the .dynsym entry to
5801 determine the address it must put in the global offset table, so
5802 both the dynamic object and the regular object will refer to the
5803 same memory location for the variable.
5804
4dc4a9a5
DJ
5805 Of course, if the symbol is referenced using SDAREL relocs, we
5806 must instead allocate it in .sbss. */
25dbc73a 5807
4dc4a9a5 5808 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5809 s = htab->dynsbss;
5474d94f
AM
5810 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5811 s = htab->elf.sdynrelro;
25dbc73a 5812 else
9d19e4fd 5813 s = htab->elf.sdynbss;
25dbc73a
AM
5814 BFD_ASSERT (s != NULL);
5815
5816 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5817 copy the initial value out of the dynamic object and into the
5818 runtime process image. We need to remember the offset into the
5819 .rela.bss section we are going to use. */
1d7e9d18 5820 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5821 {
5822 asection *srel;
5823
4dc4a9a5 5824 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5825 srel = htab->relsbss;
5474d94f
AM
5826 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5827 srel = htab->elf.sreldynrelro;
25dbc73a 5828 else
9d19e4fd 5829 srel = htab->elf.srelbss;
25dbc73a
AM
5830 BFD_ASSERT (srel != NULL);
5831 srel->size += sizeof (Elf32_External_Rela);
5832 h->needs_copy = 1;
5833 }
7619e7c7 5834
6cabe1ea 5835 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5836}
5837\f
ac39eb42
AM
5838/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5839 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5840 specifying the addend on the plt relocation. For -fpic code, the sym
5841 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5842 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5843
5844static bfd_boolean
5845add_stub_sym (struct plt_entry *ent,
5846 struct elf_link_hash_entry *h,
ac39eb42 5847 struct bfd_link_info *info)
0ba07910
AM
5848{
5849 struct elf_link_hash_entry *sh;
5850 size_t len1, len2, len3;
5851 char *name;
ac39eb42
AM
5852 const char *stub;
5853 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5854
0e1862bb 5855 if (bfd_link_pic (info))
ac39eb42
AM
5856 stub = ".plt_pic32.";
5857 else
5858 stub = ".plt_call32.";
0ba07910
AM
5859
5860 len1 = strlen (h->root.root.string);
ac39eb42 5861 len2 = strlen (stub);
0ba07910
AM
5862 len3 = 0;
5863 if (ent->sec)
5864 len3 = strlen (ent->sec->name);
ac39eb42 5865 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5866 if (name == NULL)
5867 return FALSE;
5868 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5869 if (ent->sec)
5870 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5871 memcpy (name + 8 + len3, stub, len2);
5872 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5873 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5874 if (sh == NULL)
5875 return FALSE;
5876 if (sh->root.type == bfd_link_hash_new)
5877 {
5878 sh->root.type = bfd_link_hash_defined;
5879 sh->root.u.def.section = htab->glink;
5880 sh->root.u.def.value = ent->glink_offset;
5881 sh->ref_regular = 1;
5882 sh->def_regular = 1;
5883 sh->ref_regular_nonweak = 1;
5884 sh->forced_local = 1;
5885 sh->non_elf = 0;
2ec55de3 5886 sh->root.linker_def = 1;
0ba07910
AM
5887 }
5888 return TRUE;
5889}
5890
3b36f7e6
AM
5891/* Allocate NEED contiguous space in .got, and return the offset.
5892 Handles allocation of the got header when crossing 32k. */
5893
5894static bfd_vma
5895allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5896{
5897 bfd_vma where;
4a3dc543 5898 unsigned int max_before_header;
3b36f7e6 5899
4a3dc543 5900 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5901 {
ce558b89
AM
5902 where = htab->elf.sgot->size;
5903 htab->elf.sgot->size += need;
9d8504b1 5904 }
3b36f7e6
AM
5905 else
5906 {
4a3dc543
RS
5907 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5908 if (need <= htab->got_gap)
3b36f7e6 5909 {
4a3dc543
RS
5910 where = max_before_header - htab->got_gap;
5911 htab->got_gap -= need;
5912 }
5913 else
5914 {
ce558b89
AM
5915 if (htab->elf.sgot->size + need > max_before_header
5916 && htab->elf.sgot->size <= max_before_header)
4a3dc543 5917 {
ce558b89
AM
5918 htab->got_gap = max_before_header - htab->elf.sgot->size;
5919 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 5920 }
ce558b89
AM
5921 where = htab->elf.sgot->size;
5922 htab->elf.sgot->size += need;
3b36f7e6 5923 }
3b36f7e6
AM
5924 }
5925 return where;
5926}
5927
25dbc73a 5928/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5929
b34976b6 5930static bfd_boolean
25dbc73a 5931allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5932{
25dbc73a
AM
5933 struct bfd_link_info *info = inf;
5934 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5935 struct ppc_elf_link_hash_table *htab;
6061a67d 5936 struct elf_dyn_relocs *p;
252b5132 5937
25dbc73a 5938 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5939 return TRUE;
252b5132 5940
7619e7c7 5941 htab = ppc_elf_hash_table (info);
e054468f
AM
5942 if (htab->elf.dynamic_sections_created
5943 || h->type == STT_GNU_IFUNC)
252b5132 5944 {
a6aa5195
AM
5945 struct plt_entry *ent;
5946 bfd_boolean doneone = FALSE;
28e99bb6 5947 bfd_vma plt_offset = 0, glink_offset = 0;
e054468f 5948 bfd_boolean dyn;
28e99bb6 5949
a6aa5195
AM
5950 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5951 if (ent->plt.refcount > 0)
5952 {
5953 /* Make sure this symbol is output as a dynamic symbol. */
5954 if (h->dynindx == -1
e054468f
AM
5955 && !h->forced_local
5956 && !h->def_regular
5957 && htab->elf.dynamic_sections_created)
a6aa5195
AM
5958 {
5959 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5960 return FALSE;
5961 }
252b5132 5962
e054468f 5963 dyn = htab->elf.dynamic_sections_created;
0e1862bb 5964 if (bfd_link_pic (info)
e054468f
AM
5965 || h->type == STT_GNU_IFUNC
5966 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
a6aa5195 5967 {
ce558b89 5968 asection *s = htab->elf.splt;
25f23106 5969 if (!dyn || h->dynindx == -1)
ce558b89 5970 s = htab->elf.iplt;
7619e7c7 5971
25f23106 5972 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
a6aa5195 5973 {
a6aa5195 5974 if (!doneone)
28e99bb6
AM
5975 {
5976 plt_offset = s->size;
5977 s->size += 4;
5978 }
5979 ent->plt.offset = plt_offset;
d7128ce4 5980
a6aa5195 5981 s = htab->glink;
0e1862bb 5982 if (!doneone || bfd_link_pic (info))
28e99bb6
AM
5983 {
5984 glink_offset = s->size;
5985 s->size += GLINK_ENTRY_SIZE;
a7f2871e 5986 if (h == htab->tls_get_addr
5446cbdf 5987 && !htab->params->no_tls_get_addr_opt)
a7f2871e 5988 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
28e99bb6
AM
5989 }
5990 if (!doneone
0e1862bb 5991 && !bfd_link_pic (info)
625af618 5992 && h->def_dynamic
a6aa5195
AM
5993 && !h->def_regular)
5994 {
5995 h->root.u.def.section = s;
28e99bb6 5996 h->root.u.def.value = glink_offset;
a6aa5195 5997 }
28e99bb6 5998 ent->glink_offset = glink_offset;
0ba07910 5999
5446cbdf 6000 if (htab->params->emit_stub_syms
ac39eb42 6001 && !add_stub_sym (ent, h, info))
0ba07910 6002 return FALSE;
a6aa5195
AM
6003 }
6004 else
6005 {
a6aa5195
AM
6006 if (!doneone)
6007 {
28e99bb6
AM
6008 /* If this is the first .plt entry, make room
6009 for the special first entry. */
6010 if (s->size == 0)
9d8504b1 6011 s->size += htab->plt_initial_entry_size;
28e99bb6
AM
6012
6013 /* The PowerPC PLT is actually composed of two
6014 parts, the first part is 2 words (for a load
6015 and a jump), and then there is a remaining
6016 word available at the end. */
9d8504b1
PB
6017 plt_offset = (htab->plt_initial_entry_size
6018 + (htab->plt_slot_size
6019 * ((s->size
6020 - htab->plt_initial_entry_size)
6021 / htab->plt_entry_size)));
28e99bb6
AM
6022
6023 /* If this symbol is not defined in a regular
6024 file, and we are not generating a shared
5b914448 6025 library, then set the symbol to this location
de972ffa
AM
6026 in the .plt. This is to avoid text
6027 relocations, and is required to make
28e99bb6
AM
6028 function pointers compare as equal between
6029 the normal executable and the shared library. */
0e1862bb 6030 if (! bfd_link_pic (info)
625af618 6031 && h->def_dynamic
28e99bb6
AM
6032 && !h->def_regular)
6033 {
6034 h->root.u.def.section = s;
6035 h->root.u.def.value = plt_offset;
6036 }
6037
9d8504b1
PB
6038 /* Make room for this entry. */
6039 s->size += htab->plt_entry_size;
6040 /* After the 8192nd entry, room for two entries
6041 is allocated. */
4a3dc543 6042 if (htab->plt_type == PLT_OLD
9d8504b1
PB
6043 && (s->size - htab->plt_initial_entry_size)
6044 / htab->plt_entry_size
6045 > PLT_NUM_SINGLE_ENTRIES)
6046 s->size += htab->plt_entry_size;
a6aa5195 6047 }
28e99bb6 6048 ent->plt.offset = plt_offset;
a6aa5195 6049 }
25dbc73a 6050
a6aa5195
AM
6051 /* We also need to make an entry in the .rela.plt section. */
6052 if (!doneone)
6053 {
25f23106
AM
6054 if (!htab->elf.dynamic_sections_created
6055 || h->dynindx == -1)
ce558b89 6056 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f 6057 else
9d8504b1 6058 {
ce558b89 6059 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6060
6061 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 6062 {
e054468f 6063 /* Allocate space for the unloaded relocations. */
0e1862bb 6064 if (!bfd_link_pic (info)
e054468f 6065 && htab->elf.dynamic_sections_created)
9d8504b1 6066 {
e054468f
AM
6067 if (ent->plt.offset
6068 == (bfd_vma) htab->plt_initial_entry_size)
6069 {
6070 htab->srelplt2->size
6071 += (sizeof (Elf32_External_Rela)
6072 * VXWORKS_PLTRESOLVE_RELOCS);
6073 }
6074
9d8504b1 6075 htab->srelplt2->size
e054468f
AM
6076 += (sizeof (Elf32_External_Rela)
6077 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
9d8504b1
PB
6078 }
6079
e054468f
AM
6080 /* Every PLT entry has an associated GOT entry in
6081 .got.plt. */
ce558b89 6082 htab->elf.sgotplt->size += 4;
9d8504b1 6083 }
9d8504b1 6084 }
a6aa5195
AM
6085 doneone = TRUE;
6086 }
6087 }
6088 else
6089 ent->plt.offset = (bfd_vma) -1;
a6aa5195 6090 }
2ce859a1
AM
6091 else
6092 ent->plt.offset = (bfd_vma) -1;
6093
6094 if (!doneone)
6095 {
6096 h->plt.plist = NULL;
6097 h->needs_plt = 0;
6098 }
25dbc73a
AM
6099 }
6100 else
6101 {
a6aa5195 6102 h->plt.plist = NULL;
25dbc73a
AM
6103 h->needs_plt = 0;
6104 }
6105
6106 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
6107 if (eh->elf.got.refcount > 0
6108 || (ELIMINATE_COPY_RELOCS
6109 && !eh->elf.def_regular
6110 && eh->elf.protected_def
6111 && eh->has_addr16_ha
6112 && eh->has_addr16_lo
6113 && htab->params->pic_fixup > 0))
25dbc73a 6114 {
d6e14abc
AM
6115 bfd_boolean dyn;
6116 unsigned int need;
6117
25dbc73a
AM
6118 /* Make sure this symbol is output as a dynamic symbol. */
6119 if (eh->elf.dynindx == -1
b099ab9f 6120 && !eh->elf.forced_local
25f23106 6121 && eh->elf.type != STT_GNU_IFUNC
b099ab9f 6122 && htab->elf.dynamic_sections_created)
25dbc73a
AM
6123 {
6124 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 6125 return FALSE;
25dbc73a 6126 }
252b5132 6127
d6e14abc
AM
6128 need = 0;
6129 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 6130 {
d6e14abc 6131 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 6132 {
d6e14abc
AM
6133 if (!eh->elf.def_dynamic)
6134 /* We'll just use htab->tlsld_got.offset. This should
6135 always be the case. It's a little odd if we have
6136 a local dynamic reloc against a non-local symbol. */
6137 htab->tlsld_got.refcount += 1;
6138 else
3b36f7e6 6139 need += 8;
252b5132 6140 }
d6e14abc
AM
6141 if ((eh->tls_mask & TLS_GD) != 0)
6142 need += 8;
6143 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6144 need += 4;
6145 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 6146 need += 4;
d6e14abc
AM
6147 }
6148 else
6149 need += 4;
6150 if (need == 0)
6151 eh->elf.got.offset = (bfd_vma) -1;
6152 else
6153 {
3b36f7e6 6154 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a 6155 dyn = htab->elf.dynamic_sections_created;
0e1862bb 6156 if ((bfd_link_pic (info)
25dbc73a
AM
6157 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
6158 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
6159 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 6160 {
ce558b89 6161 asection *rsec = htab->elf.srelgot;
0bed072f
AM
6162
6163 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6164 rsec = htab->elf.irelplt;
3b36f7e6
AM
6165 /* All the entries we allocated need relocs.
6166 Except LD only needs one. */
d6e14abc
AM
6167 if ((eh->tls_mask & TLS_LD) != 0
6168 && eh->elf.def_dynamic)
3b36f7e6 6169 need -= 4;
25f23106 6170 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 6171 }
25dbc73a
AM
6172 }
6173 }
6174 else
6175 eh->elf.got.offset = (bfd_vma) -1;
252b5132 6176
b099ab9f 6177 if (eh->dyn_relocs == NULL
de972ffa 6178 || !htab->elf.dynamic_sections_created)
25dbc73a 6179 return TRUE;
252b5132 6180
25dbc73a
AM
6181 /* In the shared -Bsymbolic case, discard space allocated for
6182 dynamic pc-relative relocs against symbols which turn out to be
6183 defined in regular objects. For the normal shared case, discard
6184 space for relocs that have become local due to symbol visibility
6185 changes. */
6186
0e1862bb 6187 if (bfd_link_pic (info))
25dbc73a
AM
6188 {
6189 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 6190 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
6191 generated via assembly. We want calls to protected symbols to
6192 resolve directly to the function rather than going via the plt.
6193 If people want function pointer comparisons to work as expected
6194 then they should avoid writing weird assembly. */
6195 if (SYMBOL_CALLS_LOCAL (info, h))
6196 {
6061a67d 6197 struct elf_dyn_relocs **pp;
25dbc73a
AM
6198
6199 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 6200 {
25dbc73a
AM
6201 p->count -= p->pc_count;
6202 p->pc_count = 0;
6203 if (p->count == 0)
6204 *pp = p->next;
6205 else
6206 pp = &p->next;
252b5132 6207 }
25dbc73a 6208 }
252b5132 6209
3348747a
NS
6210 if (htab->is_vxworks)
6211 {
6061a67d 6212 struct elf_dyn_relocs **pp;
3348747a
NS
6213
6214 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6215 {
6216 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6217 *pp = p->next;
6218 else
6219 pp = &p->next;
6220 }
6221 }
6222
89200bf8
AM
6223 /* Discard relocs on undefined symbols that must be local. */
6224 if (eh->dyn_relocs != NULL
6225 && h->root.type == bfd_link_hash_undefined
6226 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6227 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6228 eh->dyn_relocs = NULL;
6229
25dbc73a
AM
6230 /* Also discard relocs on undefined weak syms with non-default
6231 visibility. */
cab87ef9
AM
6232 if (eh->dyn_relocs != NULL
6233 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 6234 {
dfbb6ac9
AM
6235 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6236 eh->dyn_relocs = NULL;
6237
6238 /* Make sure undefined weak symbols are output as a dynamic
6239 symbol in PIEs. */
6240 else if (h->dynindx == -1
e054468f
AM
6241 && !h->forced_local
6242 && !h->def_regular)
dfbb6ac9
AM
6243 {
6244 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6245 return FALSE;
6246 }
25dbc73a
AM
6247 }
6248 }
6249 else if (ELIMINATE_COPY_RELOCS)
6250 {
6251 /* For the non-shared case, discard space for relocs against
6252 symbols which turn out to need copy relocs or are not
6253 dynamic. */
7619e7c7 6254
25dbc73a 6255 if (!h->non_got_ref
d3e454b9
AM
6256 && !h->def_regular
6257 && !(h->protected_def
6258 && eh->has_addr16_ha
6259 && eh->has_addr16_lo
6260 && htab->params->pic_fixup > 0))
25dbc73a
AM
6261 {
6262 /* Make sure this symbol is output as a dynamic symbol.
6263 Undefined weak syms won't yet be marked as dynamic. */
6264 if (h->dynindx == -1
25f23106 6265 && !h->forced_local)
25dbc73a
AM
6266 {
6267 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6268 return FALSE;
6269 }
7619e7c7 6270
25dbc73a
AM
6271 /* If that succeeded, we know we'll be keeping all the
6272 relocs. */
6273 if (h->dynindx != -1)
6274 goto keep;
6275 }
252b5132 6276
25dbc73a 6277 eh->dyn_relocs = NULL;
252b5132 6278
25dbc73a
AM
6279 keep: ;
6280 }
252b5132 6281
25dbc73a
AM
6282 /* Finally, allocate space. */
6283 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6284 {
6285 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6286 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6287 sreloc = htab->elf.irelplt;
25dbc73a
AM
6288 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6289 }
252b5132 6290
25dbc73a
AM
6291 return TRUE;
6292}
7619e7c7 6293
625af618
AM
6294/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6295 read-only sections. */
7619e7c7 6296
25dbc73a 6297static bfd_boolean
625af618 6298maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 6299{
25dbc73a
AM
6300 if (h->root.type == bfd_link_hash_indirect)
6301 return TRUE;
252b5132 6302
625af618 6303 if (readonly_dynrelocs (h))
25dbc73a 6304 {
625af618 6305 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 6306
625af618
AM
6307 /* Not an error, just cut short the traversal. */
6308 return FALSE;
25dbc73a
AM
6309 }
6310 return TRUE;
6311}
6312
6177242a
AM
6313static const unsigned char glink_eh_frame_cie[] =
6314{
6315 0, 0, 0, 16, /* length. */
6316 0, 0, 0, 0, /* id. */
6317 1, /* CIE version. */
6318 'z', 'R', 0, /* Augmentation string. */
6319 4, /* Code alignment. */
6320 0x7c, /* Data alignment. */
6321 65, /* RA reg. */
6322 1, /* Augmentation size. */
6323 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6324 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6325};
6326
25dbc73a
AM
6327/* Set the sizes of the dynamic sections. */
6328
6329static bfd_boolean
93d1b056 6330ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6331 struct bfd_link_info *info)
6332{
6333 struct ppc_elf_link_hash_table *htab;
6334 asection *s;
6335 bfd_boolean relocs;
6336 bfd *ibfd;
7fce784e 6337
252b5132 6338#ifdef DEBUG
25dbc73a 6339 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6340#endif
252b5132 6341
25dbc73a
AM
6342 htab = ppc_elf_hash_table (info);
6343 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6344
25dbc73a
AM
6345 if (elf_hash_table (info)->dynamic_sections_created)
6346 {
6347 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6348 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6349 {
3d4d4302 6350 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6351 BFD_ASSERT (s != NULL);
6352 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6353 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6354 }
6355 }
252b5132 6356
4a3dc543 6357 if (htab->plt_type == PLT_OLD)
d7128ce4 6358 htab->got_header_size = 16;
4a3dc543 6359 else if (htab->plt_type == PLT_NEW)
d7128ce4 6360 htab->got_header_size = 12;
252b5132 6361
25dbc73a
AM
6362 /* Set up .got offsets for local syms, and space for local dynamic
6363 relocs. */
c72f2fb2 6364 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6365 {
6366 bfd_signed_vma *local_got;
6367 bfd_signed_vma *end_local_got;
e054468f
AM
6368 struct plt_entry **local_plt;
6369 struct plt_entry **end_local_plt;
25dbc73a
AM
6370 char *lgot_masks;
6371 bfd_size_type locsymcount;
6372 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6373
0c8d6e5c 6374 if (!is_ppc_elf (ibfd))
25dbc73a 6375 continue;
7fce784e 6376
25dbc73a
AM
6377 for (s = ibfd->sections; s != NULL; s = s->next)
6378 {
f95f8542 6379 struct ppc_dyn_relocs *p;
252b5132 6380
f95f8542 6381 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6382 elf_section_data (s)->local_dynrel);
6383 p != NULL;
6384 p = p->next)
6385 {
6386 if (!bfd_is_abs_section (p->sec)
6387 && bfd_is_abs_section (p->sec->output_section))
6388 {
6389 /* Input section has been discarded, either because
6390 it is a copy of a linkonce section or due to
6391 linker script /DISCARD/, so we'll be discarding
6392 the relocs too. */
7fce784e 6393 }
3348747a
NS
6394 else if (htab->is_vxworks
6395 && strcmp (p->sec->output_section->name,
6396 ".tls_vars") == 0)
6397 {
6398 /* Relocations in vxworks .tls_vars sections are
6399 handled specially by the loader. */
6400 }
25dbc73a 6401 else if (p->count != 0)
7fce784e 6402 {
25f23106 6403 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6404 if (p->ifunc)
ce558b89 6405 sreloc = htab->elf.irelplt;
25f23106 6406 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6407 if ((p->sec->output_section->flags
6408 & (SEC_READONLY | SEC_ALLOC))
6409 == (SEC_READONLY | SEC_ALLOC))
6410 info->flags |= DF_TEXTREL;
7fce784e 6411 }
252b5132 6412 }
252b5132 6413 }
252b5132 6414
25dbc73a
AM
6415 local_got = elf_local_got_refcounts (ibfd);
6416 if (!local_got)
6417 continue;
252b5132 6418
0ffa91dd 6419 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6420 locsymcount = symtab_hdr->sh_info;
6421 end_local_got = local_got + locsymcount;
e054468f
AM
6422 local_plt = (struct plt_entry **) end_local_got;
6423 end_local_plt = local_plt + locsymcount;
6424 lgot_masks = (char *) end_local_plt;
91d6fa6a 6425
25dbc73a
AM
6426 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6427 if (*local_got > 0)
6428 {
d6e14abc
AM
6429 unsigned int need = 0;
6430 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6431 {
d6e14abc
AM
6432 if ((*lgot_masks & TLS_GD) != 0)
6433 need += 8;
6434 if ((*lgot_masks & TLS_LD) != 0)
6435 htab->tlsld_got.refcount += 1;
6436 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6437 need += 4;
6438 if ((*lgot_masks & TLS_DTPREL) != 0)
6439 need += 4;
25dbc73a 6440 }
d6e14abc
AM
6441 else
6442 need += 4;
6443 if (need == 0)
6444 *local_got = (bfd_vma) -1;
25dbc73a
AM
6445 else
6446 {
3b36f7e6 6447 *local_got = allocate_got (htab, need);
0e1862bb 6448 if (bfd_link_pic (info))
0bed072f 6449 {
ce558b89 6450 asection *srel = htab->elf.srelgot;
0bed072f 6451 if ((*lgot_masks & PLT_IFUNC) != 0)
ce558b89 6452 srel = htab->elf.irelplt;
0bed072f
AM
6453 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6454 }
25dbc73a
AM
6455 }
6456 }
6457 else
6458 *local_got = (bfd_vma) -1;
e054468f
AM
6459
6460 if (htab->is_vxworks)
6461 continue;
6462
6463 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6464 for (; local_plt < end_local_plt; ++local_plt)
6465 {
6466 struct plt_entry *ent;
6467 bfd_boolean doneone = FALSE;
6468 bfd_vma plt_offset = 0, glink_offset = 0;
6469
6470 for (ent = *local_plt; ent != NULL; ent = ent->next)
6471 if (ent->plt.refcount > 0)
6472 {
ce558b89 6473 s = htab->elf.iplt;
e054468f
AM
6474
6475 if (!doneone)
6476 {
6477 plt_offset = s->size;
6478 s->size += 4;
6479 }
6480 ent->plt.offset = plt_offset;
6481
6482 s = htab->glink;
0e1862bb 6483 if (!doneone || bfd_link_pic (info))
e054468f
AM
6484 {
6485 glink_offset = s->size;
6486 s->size += GLINK_ENTRY_SIZE;
6487 }
6488 ent->glink_offset = glink_offset;
6489
6490 if (!doneone)
6491 {
ce558b89 6492 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6493 doneone = TRUE;
6494 }
6495 }
6496 else
6497 ent->plt.offset = (bfd_vma) -1;
6498 }
25dbc73a 6499 }
252b5132 6500
b7fcf6f6
AM
6501 /* Allocate space for global sym dynamic relocs. */
6502 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6503
3b36f7e6
AM
6504 if (htab->tlsld_got.refcount > 0)
6505 {
6506 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6507 if (bfd_link_pic (info))
ce558b89 6508 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6509 }
6510 else
6511 htab->tlsld_got.offset = (bfd_vma) -1;
6512
ce558b89 6513 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6514 {
6515 unsigned int g_o_t = 32768;
6516
4d962050
AM
6517 /* If we haven't allocated the header, do so now. When we get here,
6518 for old plt/got the got size will be 0 to 32764 (not allocated),
6519 or 32780 to 65536 (header allocated). For new plt/got, the
6520 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6521 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6522 {
ce558b89 6523 g_o_t = htab->elf.sgot->size;
4a3dc543 6524 if (htab->plt_type == PLT_OLD)
4d962050 6525 g_o_t += 4;
ce558b89 6526 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6527 }
3b36f7e6
AM
6528
6529 htab->elf.hgot->root.u.def.value = g_o_t;
6530 }
0e1862bb 6531 if (bfd_link_pic (info))
bd6c6e2b
AM
6532 {
6533 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6534
6535 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6536 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6537 }
15bfcc77
AM
6538 if (info->emitrelocations)
6539 {
6540 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6541
6542 if (sda != NULL && sda->ref_regular)
6543 sda->root.u.def.section->flags |= SEC_KEEP;
6544 sda = htab->sdata[1].sym;
6545 if (sda != NULL && sda->ref_regular)
6546 sda->root.u.def.section->flags |= SEC_KEEP;
6547 }
3b36f7e6 6548
e054468f
AM
6549 if (htab->glink != NULL
6550 && htab->glink->size != 0
6551 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6552 {
6553 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6554 /* Space for the branch table. ??? We don't need entries for
6555 non-dynamic symbols in this table. This case can arise with
6556 static ifuncs or forced local ifuncs. */
86b9da88
AM
6557 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6558 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6559 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6560 ? 63 : 15);
d7128ce4 6561 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6562
5446cbdf 6563 if (htab->params->emit_stub_syms)
0ba07910
AM
6564 {
6565 struct elf_link_hash_entry *sh;
6566 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6567 TRUE, FALSE, FALSE);
6568 if (sh == NULL)
6569 return FALSE;
6570 if (sh->root.type == bfd_link_hash_new)
6571 {
6572 sh->root.type = bfd_link_hash_defined;
6573 sh->root.u.def.section = htab->glink;
6574 sh->root.u.def.value = htab->glink_pltresolve;
6575 sh->ref_regular = 1;
6576 sh->def_regular = 1;
6577 sh->ref_regular_nonweak = 1;
6578 sh->forced_local = 1;
6579 sh->non_elf = 0;
2ec55de3 6580 sh->root.linker_def = 1;
0ba07910
AM
6581 }
6582 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6583 TRUE, FALSE, FALSE);
6584 if (sh == NULL)
6585 return FALSE;
6586 if (sh->root.type == bfd_link_hash_new)
6587 {
6588 sh->root.type = bfd_link_hash_defined;
6589 sh->root.u.def.section = htab->glink;
6590 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6591 sh->ref_regular = 1;
6592 sh->def_regular = 1;
6593 sh->ref_regular_nonweak = 1;
6594 sh->forced_local = 1;
6595 sh->non_elf = 0;
2ec55de3 6596 sh->root.linker_def = 1;
0ba07910
AM
6597 }
6598 }
d7128ce4
AM
6599 }
6600
6177242a
AM
6601 if (htab->glink != NULL
6602 && htab->glink->size != 0
6603 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6604 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6605 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6606 {
6607 s = htab->glink_eh_frame;
6608 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6609 if (bfd_link_pic (info))
6177242a
AM
6610 {
6611 s->size += 4;
6612 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6613 s->size += 4;
6614 }
6615 }
6616
25dbc73a
AM
6617 /* We've now determined the sizes of the various dynamic sections.
6618 Allocate memory for them. */
6619 relocs = FALSE;
6620 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6621 {
9d8504b1
PB
6622 bfd_boolean strip_section = TRUE;
6623
25dbc73a
AM
6624 if ((s->flags & SEC_LINKER_CREATED) == 0)
6625 continue;
252b5132 6626
ce558b89
AM
6627 if (s == htab->elf.splt
6628 || s == htab->elf.sgot)
25dbc73a 6629 {
9d8504b1
PB
6630 /* We'd like to strip these sections if they aren't needed, but if
6631 we've exported dynamic symbols from them we must leave them.
6632 It's too late to tell BFD to get rid of the symbols. */
e054468f 6633 if (htab->elf.hplt != NULL)
9d8504b1 6634 strip_section = FALSE;
25dbc73a
AM
6635 /* Strip this section if we don't need it; see the
6636 comment below. */
6637 }
ce558b89 6638 else if (s == htab->elf.iplt
e054468f 6639 || s == htab->glink
6177242a 6640 || s == htab->glink_eh_frame
ce558b89 6641 || s == htab->elf.sgotplt
e054468f 6642 || s == htab->sbss
9d19e4fd 6643 || s == htab->elf.sdynbss
5474d94f 6644 || s == htab->elf.sdynrelro
15bfcc77 6645 || s == htab->dynsbss)
25dbc73a 6646 {
c9a2f333 6647 /* Strip these too. */
25dbc73a 6648 }
15bfcc77
AM
6649 else if (s == htab->sdata[0].section
6650 || s == htab->sdata[1].section)
6651 {
6652 strip_section = (s->flags & SEC_KEEP) == 0;
6653 }
a0f49396
NC
6654 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6655 ".rela"))
25dbc73a 6656 {
c456f082 6657 if (s->size != 0)
25dbc73a
AM
6658 {
6659 /* Remember whether there are any relocation sections. */
6660 relocs = TRUE;
252b5132 6661
25dbc73a
AM
6662 /* We use the reloc_count field as a counter if we need
6663 to copy relocs into the output file. */
6664 s->reloc_count = 0;
252b5132
RH
6665 }
6666 }
25dbc73a
AM
6667 else
6668 {
6669 /* It's not one of our sections, so don't allocate space. */
6670 continue;
6671 }
252b5132 6672
9d8504b1 6673 if (s->size == 0 && strip_section)
25dbc73a 6674 {
c456f082
AM
6675 /* If we don't need this section, strip it from the
6676 output file. This is mostly to handle .rela.bss and
6677 .rela.plt. We must create both sections in
6678 create_dynamic_sections, because they must be created
6679 before the linker maps input sections to output
6680 sections. The linker does that before
6681 adjust_dynamic_symbol is called, and it is that
6682 function which decides whether anything needs to go
6683 into these sections. */
8423293d 6684 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6685 continue;
6686 }
7fce784e 6687
d7128ce4 6688 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6689 continue;
6690
25dbc73a
AM
6691 /* Allocate memory for the section contents. */
6692 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6693 if (s->contents == NULL)
6694 return FALSE;
6695 }
252b5132 6696
25dbc73a 6697 if (htab->elf.dynamic_sections_created)
7619e7c7 6698 {
25dbc73a
AM
6699 /* Add some entries to the .dynamic section. We fill in the
6700 values later, in ppc_elf_finish_dynamic_sections, but we
6701 must add the entries now so that we get the correct size for
6702 the .dynamic section. The DT_DEBUG entry is filled in by the
6703 dynamic linker and used by the debugger. */
6704#define add_dynamic_entry(TAG, VAL) \
6705 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6706
0e1862bb 6707 if (bfd_link_executable (info))
7619e7c7 6708 {
25dbc73a
AM
6709 if (!add_dynamic_entry (DT_DEBUG, 0))
6710 return FALSE;
7619e7c7
AM
6711 }
6712
ce558b89 6713 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 6714 {
25dbc73a
AM
6715 if (!add_dynamic_entry (DT_PLTGOT, 0)
6716 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6717 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6718 || !add_dynamic_entry (DT_JMPREL, 0))
6719 return FALSE;
6720 }
7619e7c7 6721
c7e17e05
AM
6722 if (htab->plt_type == PLT_NEW
6723 && htab->glink != NULL
6724 && htab->glink->size != 0)
d7128ce4 6725 {
1fe44d79 6726 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6727 return FALSE;
5446cbdf 6728 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6729 && htab->tls_get_addr != NULL
6730 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6731 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6732 return FALSE;
d7128ce4
AM
6733 }
6734
25dbc73a
AM
6735 if (relocs)
6736 {
6737 if (!add_dynamic_entry (DT_RELA, 0)
6738 || !add_dynamic_entry (DT_RELASZ, 0)
6739 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6740 return FALSE;
6741 }
7619e7c7 6742
25dbc73a
AM
6743 /* If any dynamic relocs apply to a read-only section, then we
6744 need a DT_TEXTREL entry. */
6745 if ((info->flags & DF_TEXTREL) == 0)
625af618 6746 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6747 info);
7619e7c7 6748
25dbc73a
AM
6749 if ((info->flags & DF_TEXTREL) != 0)
6750 {
6751 if (!add_dynamic_entry (DT_TEXTREL, 0))
6752 return FALSE;
7619e7c7 6753 }
7a2b07ff
NS
6754 if (htab->is_vxworks
6755 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6756 return FALSE;
6757 }
25dbc73a
AM
6758#undef add_dynamic_entry
6759
7e01508c
AM
6760 if (htab->glink_eh_frame != NULL
6761 && htab->glink_eh_frame->contents != NULL)
6762 {
6763 unsigned char *p = htab->glink_eh_frame->contents;
6764 bfd_vma val;
6765
6766 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6767 /* CIE length (rewrite in case little-endian). */
6768 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6769 p += sizeof (glink_eh_frame_cie);
6770 /* FDE length. */
6771 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6772 bfd_put_32 (htab->elf.dynobj, val, p);
6773 p += 4;
6774 /* CIE pointer. */
6775 val = p - htab->glink_eh_frame->contents;
6776 bfd_put_32 (htab->elf.dynobj, val, p);
6777 p += 4;
6778 /* Offset to .glink. Set later. */
6779 p += 4;
6780 /* .glink size. */
6781 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6782 p += 4;
6783 /* Augmentation. */
6784 p += 1;
6785
0e1862bb 6786 if (bfd_link_pic (info)
7e01508c
AM
6787 && htab->elf.dynamic_sections_created)
6788 {
6789 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6790 if (adv < 64)
6791 *p++ = DW_CFA_advance_loc + adv;
6792 else if (adv < 256)
6793 {
6794 *p++ = DW_CFA_advance_loc1;
6795 *p++ = adv;
6796 }
6797 else if (adv < 65536)
6798 {
6799 *p++ = DW_CFA_advance_loc2;
6800 bfd_put_16 (htab->elf.dynobj, adv, p);
6801 p += 2;
6802 }
6803 else
6804 {
6805 *p++ = DW_CFA_advance_loc4;
6806 bfd_put_32 (htab->elf.dynobj, adv, p);
6807 p += 4;
6808 }
6809 *p++ = DW_CFA_register;
6810 *p++ = 65;
6811 p++;
6812 *p++ = DW_CFA_advance_loc + 4;
6813 *p++ = DW_CFA_restore_extended;
6814 *p++ = 65;
6815 }
6816 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6817 == htab->glink_eh_frame->size);
6818 }
6819
7619e7c7
AM
6820 return TRUE;
6821}
0eb4a168 6822
93d1b056
AM
6823/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6824 if it looks like nothing is using them. */
6825
6826static void
6827maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6828{
6829 struct elf_link_hash_entry *sda = lsect->sym;
6830
6831 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6832 {
6833 asection *s;
6834
6835 s = bfd_get_section_by_name (output_bfd, lsect->name);
6836 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6837 {
6838 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6839 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6840 {
6841 sda->def_regular = 0;
6842 /* This is somewhat magic. See elf_link_output_extsym. */
6843 sda->ref_dynamic = 1;
6844 sda->forced_local = 0;
6845 }
6846 }
6847 }
6848}
6849
6850void
6851ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6852{
6853 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6854
6855 if (htab != NULL)
6856 {
6857 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6858 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6859 }
6860}
6861
6862
0eb4a168
AM
6863/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6864
6865static bfd_boolean
6866ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6867{
6868 if (h->plt.plist != NULL
6869 && !h->def_regular
6870 && (!h->pointer_equality_needed
6871 || !h->ref_regular_nonweak))
6872 return FALSE;
6873
6874 return _bfd_elf_hash_symbol (h);
6875}
25dbc73a
AM
6876\f
6877#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6878
01017ef8
NS
6879/* Relaxation trampolines. r12 is available for clobbering (r11, is
6880 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6881static const int shared_stub_entry[] =
6882 {
6883 0x7c0802a6, /* mflr 0 */
6884 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6885 0x7d8802a6, /* mflr 12 */
6886 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6887 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6888 0x7c0803a6, /* mtlr 0 */
01017ef8 6889 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6890 0x4e800420, /* bctr */
6891 };
6892
6893static const int stub_entry[] =
6894 {
01017ef8
NS
6895 0x3d800000, /* lis 12,xxx@ha */
6896 0x398c0000, /* addi 12,12,xxx@l */
6897 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6898 0x4e800420, /* bctr */
6899 };
6900
5446cbdf
AM
6901struct ppc_elf_relax_info
6902{
6903 unsigned int workaround_size;
d3e454b9 6904 unsigned int picfixup_size;
5446cbdf
AM
6905};
6906
6907/* This function implements long branch trampolines, and the ppc476
6908 icache bug workaround. Any section needing trampolines or patch
6909 space for the workaround has its size extended so that we can
53291d1f 6910 add trampolines at the end of the section. */
5446cbdf 6911
25dbc73a
AM
6912static bfd_boolean
6913ppc_elf_relax_section (bfd *abfd,
6914 asection *isec,
6915 struct bfd_link_info *link_info,
6916 bfd_boolean *again)
6917{
d3e454b9 6918 struct one_branch_fixup
25dbc73a 6919 {
d3e454b9 6920 struct one_branch_fixup *next;
25dbc73a 6921 asection *tsec;
01017ef8
NS
6922 /* Final link, can use the symbol offset. For a
6923 relocatable link we use the symbol's index. */
25dbc73a
AM
6924 bfd_vma toff;
6925 bfd_vma trampoff;
6926 };
7619e7c7 6927
25dbc73a
AM
6928 Elf_Internal_Shdr *symtab_hdr;
6929 bfd_byte *contents = NULL;
6930 Elf_Internal_Sym *isymbuf = NULL;
6931 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6932 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6933 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6934 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6935 unsigned changes = 0;
5446cbdf 6936 bfd_boolean workaround_change;
d7128ce4 6937 struct ppc_elf_link_hash_table *htab;
d3e454b9 6938 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6939 asection *got2;
50248c89 6940 bfd_boolean maybe_pasted;
7619e7c7 6941
25dbc73a 6942 *again = FALSE;
7619e7c7 6943
5446cbdf 6944 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6945 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6946 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6947 || (isec->flags & SEC_LINKER_CREATED) != 0
6948 || isec->size < 4)
25dbc73a 6949 return TRUE;
7619e7c7 6950
c8a1f254
NS
6951 /* We cannot represent the required PIC relocs in the output, so don't
6952 do anything. The linker doesn't support mixing -shared and -r
6953 anyway. */
0e1862bb 6954 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6955 return TRUE;
5b914448 6956
5446cbdf
AM
6957 htab = ppc_elf_hash_table (link_info);
6958 if (htab == NULL)
6959 return TRUE;
6960
6961 isec->size = (isec->size + 3) & -4;
6962 if (isec->rawsize == 0)
6963 isec->rawsize = isec->size;
6964 trampbase = isec->size;
6965
53291d1f
AM
6966 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6967 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6968 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6969
d3e454b9
AM
6970 if (htab->params->ppc476_workaround
6971 || htab->params->pic_fixup > 0)
5446cbdf
AM
6972 {
6973 if (elf_section_data (isec)->sec_info == NULL)
6974 {
5446cbdf
AM
6975 elf_section_data (isec)->sec_info
6976 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6977 if (elf_section_data (isec)->sec_info == NULL)
6978 return FALSE;
6979 }
6980 relax_info = elf_section_data (isec)->sec_info;
6981 trampbase -= relax_info->workaround_size;
6982 }
6983
50248c89
AM
6984 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6985 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6986 /* Space for a branch around any trampolines. */
5446cbdf
AM
6987 trampoff = trampbase;
6988 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6989 trampoff += 4;
7619e7c7 6990
0ffa91dd 6991 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6992 picfixup_size = 0;
6993 if (htab->params->branch_trampolines
6994 || htab->params->pic_fixup > 0)
7619e7c7 6995 {
5446cbdf
AM
6996 /* Get a copy of the native relocations. */
6997 if (isec->reloc_count != 0)
25dbc73a 6998 {
5446cbdf
AM
6999 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
7000 link_info->keep_memory);
7001 if (internal_relocs == NULL)
7002 goto error_return;
25dbc73a 7003 }
7619e7c7 7004
5446cbdf
AM
7005 got2 = bfd_get_section_by_name (abfd, ".got2");
7006
7007 irelend = internal_relocs + isec->reloc_count;
7008 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 7009 {
5446cbdf
AM
7010 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
7011 bfd_vma toff, roff;
7012 asection *tsec;
d3e454b9 7013 struct one_branch_fixup *f;
5446cbdf 7014 size_t insn_offset = 0;
d3e454b9 7015 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
7016 bfd_byte *hit_addr;
7017 unsigned long t0;
7018 struct elf_link_hash_entry *h;
7019 struct plt_entry **plist;
7020 unsigned char sym_type;
7021
7022 switch (r_type)
7023 {
7024 case R_PPC_REL24:
7025 case R_PPC_LOCAL24PC:
7026 case R_PPC_PLTREL24:
7027 max_branch_offset = 1 << 25;
7028 break;
7029
7030 case R_PPC_REL14:
7031 case R_PPC_REL14_BRTAKEN:
7032 case R_PPC_REL14_BRNTAKEN:
7033 max_branch_offset = 1 << 15;
7034 break;
7fce784e 7035
d3e454b9
AM
7036 case R_PPC_ADDR16_HA:
7037 if (htab->params->pic_fixup > 0)
7038 break;
7039 continue;
7040
5446cbdf
AM
7041 default:
7042 continue;
7043 }
7044
7045 /* Get the value of the symbol referred to by the reloc. */
7046 h = NULL;
7047 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 7048 {
5446cbdf
AM
7049 /* A local symbol. */
7050 Elf_Internal_Sym *isym;
7051
7052 /* Read this BFD's local symbols. */
25dbc73a 7053 if (isymbuf == NULL)
5446cbdf
AM
7054 {
7055 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
7056 if (isymbuf == NULL)
7057 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
7058 symtab_hdr->sh_info, 0,
7059 NULL, NULL, NULL);
7060 if (isymbuf == 0)
7061 goto error_return;
7062 }
7063 isym = isymbuf + ELF32_R_SYM (irel->r_info);
7064 if (isym->st_shndx == SHN_UNDEF)
7065 tsec = bfd_und_section_ptr;
7066 else if (isym->st_shndx == SHN_ABS)
7067 tsec = bfd_abs_section_ptr;
7068 else if (isym->st_shndx == SHN_COMMON)
7069 tsec = bfd_com_section_ptr;
7070 else
7071 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7072
7073 toff = isym->st_value;
7074 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 7075 }
25dbc73a 7076 else
5446cbdf
AM
7077 {
7078 /* Global symbol handling. */
7079 unsigned long indx;
7fce784e 7080
5446cbdf
AM
7081 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
7082 h = elf_sym_hashes (abfd)[indx];
7619e7c7 7083
5446cbdf
AM
7084 while (h->root.type == bfd_link_hash_indirect
7085 || h->root.type == bfd_link_hash_warning)
7086 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 7087
5446cbdf
AM
7088 if (h->root.type == bfd_link_hash_defined
7089 || h->root.type == bfd_link_hash_defweak)
7090 {
7091 tsec = h->root.u.def.section;
7092 toff = h->root.u.def.value;
7093 }
7094 else if (h->root.type == bfd_link_hash_undefined
7095 || h->root.type == bfd_link_hash_undefweak)
7096 {
7097 tsec = bfd_und_section_ptr;
0e1862bb 7098 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
7099 }
7100 else
7101 continue;
7102
9f7552cf
AM
7103 /* If this branch is to __tls_get_addr then we may later
7104 optimise away the call. We won't be needing a long-
7105 branch stub in that case. */
0e1862bb 7106 if (bfd_link_executable (link_info)
9f7552cf
AM
7107 && h == htab->tls_get_addr
7108 && irel != internal_relocs)
7109 {
7110 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7111 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7112 unsigned int tls_mask = 0;
7113
7114 /* The previous reloc should be one of R_PPC_TLSGD or
7115 R_PPC_TLSLD, or for older object files, a reloc
7116 on the __tls_get_addr arg setup insn. Get tls
7117 mask bits from the symbol on that reloc. */
7118 if (t_symndx < symtab_hdr->sh_info)
7119 {
7120 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7121
7122 if (local_got_offsets != NULL)
7123 {
7124 struct plt_entry **local_plt = (struct plt_entry **)
7125 (local_got_offsets + symtab_hdr->sh_info);
7126 char *lgot_masks = (char *)
7127 (local_plt + symtab_hdr->sh_info);
7128 tls_mask = lgot_masks[t_symndx];
7129 }
7130 }
7131 else
7132 {
7133 struct elf_link_hash_entry *th
7134 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7135
7136 while (th->root.type == bfd_link_hash_indirect
7137 || th->root.type == bfd_link_hash_warning)
7138 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7139
7140 tls_mask
7141 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7142 }
7143
7144 /* The mask bits tell us if the call will be
7145 optimised away. */
7146 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7147 && (t_rtype == R_PPC_TLSGD
7148 || t_rtype == R_PPC_GOT_TLSGD16
7149 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7150 continue;
7151 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7152 && (t_rtype == R_PPC_TLSLD
7153 || t_rtype == R_PPC_GOT_TLSLD16
7154 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7155 continue;
7156 }
7157
5446cbdf
AM
7158 sym_type = h->type;
7159 }
7619e7c7 7160
d3e454b9
AM
7161 if (r_type == R_PPC_ADDR16_HA)
7162 {
7163 if (h != NULL
7164 && !h->def_regular
7165 && h->protected_def
7166 && ppc_elf_hash_entry (h)->has_addr16_ha
7167 && ppc_elf_hash_entry (h)->has_addr16_lo)
7168 picfixup_size += 12;
7169 continue;
7170 }
7171
5446cbdf
AM
7172 /* The condition here under which we call find_plt_ent must
7173 match that in relocate_section. If we call find_plt_ent here
7174 but not in relocate_section, or vice versa, then the branch
7175 destination used here may be incorrect. */
7176 plist = NULL;
7177 if (h != NULL)
25dbc73a 7178 {
5446cbdf
AM
7179 /* We know is_branch_reloc (r_type) is true. */
7180 if (h->type == STT_GNU_IFUNC
7181 || r_type == R_PPC_PLTREL24)
7182 plist = &h->plt.plist;
25dbc73a 7183 }
5446cbdf
AM
7184 else if (sym_type == STT_GNU_IFUNC
7185 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7186 {
5446cbdf
AM
7187 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7188 struct plt_entry **local_plt = (struct plt_entry **)
7189 (local_got_offsets + symtab_hdr->sh_info);
7190 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7191 }
5446cbdf 7192 if (plist != NULL)
a9585d22 7193 {
5446cbdf
AM
7194 bfd_vma addend = 0;
7195 struct plt_entry *ent;
7196
0e1862bb 7197 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7198 addend = irel->r_addend;
7199 ent = find_plt_ent (plist, got2, addend);
7200 if (ent != NULL)
a9585d22 7201 {
5446cbdf
AM
7202 if (htab->plt_type == PLT_NEW
7203 || h == NULL
7204 || !htab->elf.dynamic_sections_created
7205 || h->dynindx == -1)
7206 {
7207 tsec = htab->glink;
7208 toff = ent->glink_offset;
7209 }
7210 else
7211 {
ce558b89 7212 tsec = htab->elf.splt;
5446cbdf
AM
7213 toff = ent->plt.offset;
7214 }
de972ffa
AM
7215 }
7216 }
de972ffa 7217
5446cbdf
AM
7218 /* If the branch and target are in the same section, you have
7219 no hope of adding stubs. We'll error out later should the
7220 branch overflow. */
7221 if (tsec == isec)
7222 continue;
25dbc73a 7223
5446cbdf
AM
7224 /* There probably isn't any reason to handle symbols in
7225 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7226 attribute for a code section, and we are only looking at
7227 branches. However, implement it correctly here as a
7228 reference for other target relax_section functions. */
7229 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7230 {
7231 /* At this stage in linking, no SEC_MERGE symbol has been
7232 adjusted, so all references to such symbols need to be
7233 passed through _bfd_merged_section_offset. (Later, in
7234 relocate_section, all SEC_MERGE symbols *except* for
7235 section symbols have been adjusted.)
7236
7237 gas may reduce relocations against symbols in SEC_MERGE
7238 sections to a relocation against the section symbol when
7239 the original addend was zero. When the reloc is against
7240 a section symbol we should include the addend in the
7241 offset passed to _bfd_merged_section_offset, since the
7242 location of interest is the original symbol. On the
7243 other hand, an access to "sym+addend" where "sym" is not
7244 a section symbol should not include the addend; Such an
7245 access is presumed to be an offset from "sym"; The
7246 location of interest is just "sym". */
7247 if (sym_type == STT_SECTION)
7248 toff += irel->r_addend;
7249
7250 toff
7251 = _bfd_merged_section_offset (abfd, &tsec,
7252 elf_section_data (tsec)->sec_info,
7253 toff);
7254
7255 if (sym_type != STT_SECTION)
7256 toff += irel->r_addend;
7257 }
7258 /* PLTREL24 addends are special. */
7259 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7260 toff += irel->r_addend;
7619e7c7 7261
5446cbdf 7262 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7263 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7264 && tsec == bfd_und_section_ptr)
7265 || tsec->output_section == NULL
7266 || (tsec->owner != NULL
7267 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7268 continue;
7619e7c7 7269
5446cbdf 7270 roff = irel->r_offset;
7de713b9 7271
5446cbdf
AM
7272 /* If the branch is in range, no need to do anything. */
7273 if (tsec != bfd_und_section_ptr
0e1862bb 7274 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7275 /* A relocatable link may have sections moved during
7276 final link, so do not presume they remain in range. */
7277 || tsec->output_section == isec->output_section))
7278 {
7279 bfd_vma symaddr, reladdr;
7619e7c7 7280
5446cbdf
AM
7281 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7282 reladdr = isec->output_section->vma + isec->output_offset + roff;
7283 if (symaddr - reladdr + max_branch_offset
7284 < 2 * max_branch_offset)
7285 continue;
7286 }
01017ef8 7287
5446cbdf 7288 /* Look for an existing fixup to this address. */
d3e454b9 7289 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7290 if (f->tsec == tsec && f->toff == toff)
7291 break;
252b5132 7292
5446cbdf
AM
7293 if (f == NULL)
7294 {
7295 size_t size;
7296 unsigned long stub_rtype;
25dbc73a 7297
5446cbdf
AM
7298 val = trampoff - roff;
7299 if (val >= max_branch_offset)
7300 /* Oh dear, we can't reach a trampoline. Don't try to add
7301 one. We'll report an error later. */
7302 continue;
252b5132 7303
0e1862bb 7304 if (bfd_link_pic (link_info))
5446cbdf
AM
7305 {
7306 size = 4 * ARRAY_SIZE (shared_stub_entry);
7307 insn_offset = 12;
7308 }
7309 else
7310 {
7311 size = 4 * ARRAY_SIZE (stub_entry);
7312 insn_offset = 0;
7313 }
7314 stub_rtype = R_PPC_RELAX;
ce558b89 7315 if (tsec == htab->elf.splt
5446cbdf
AM
7316 || tsec == htab->glink)
7317 {
7318 stub_rtype = R_PPC_RELAX_PLT;
7319 if (r_type == R_PPC_PLTREL24)
7320 stub_rtype = R_PPC_RELAX_PLTREL24;
7321 }
252b5132 7322
5446cbdf
AM
7323 /* Hijack the old relocation. Since we need two
7324 relocations for this use a "composite" reloc. */
7325 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7326 stub_rtype);
7327 irel->r_offset = trampoff + insn_offset;
7328 if (r_type == R_PPC_PLTREL24
7329 && stub_rtype != R_PPC_RELAX_PLTREL24)
7330 irel->r_addend = 0;
7331
7332 /* Record the fixup so we don't do it again this section. */
7333 f = bfd_malloc (sizeof (*f));
d3e454b9 7334 f->next = branch_fixups;
5446cbdf
AM
7335 f->tsec = tsec;
7336 f->toff = toff;
7337 f->trampoff = trampoff;
d3e454b9 7338 branch_fixups = f;
5446cbdf
AM
7339
7340 trampoff += size;
7341 changes++;
25dbc73a
AM
7342 }
7343 else
7344 {
5446cbdf
AM
7345 val = f->trampoff - roff;
7346 if (val >= max_branch_offset)
7347 continue;
252b5132 7348
5446cbdf
AM
7349 /* Nop out the reloc, since we're finalizing things here. */
7350 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7351 }
252b5132 7352
5446cbdf
AM
7353 /* Get the section contents. */
7354 if (contents == NULL)
25dbc73a 7355 {
5446cbdf
AM
7356 /* Get cached copy if it exists. */
7357 if (elf_section_data (isec)->this_hdr.contents != NULL)
7358 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7359 /* Go get them off disk. */
5446cbdf 7360 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7361 goto error_return;
7362 }
252b5132 7363
5446cbdf
AM
7364 /* Fix up the existing branch to hit the trampoline. */
7365 hit_addr = contents + roff;
7366 switch (r_type)
7367 {
7368 case R_PPC_REL24:
7369 case R_PPC_LOCAL24PC:
7370 case R_PPC_PLTREL24:
7371 t0 = bfd_get_32 (abfd, hit_addr);
7372 t0 &= ~0x3fffffc;
7373 t0 |= val & 0x3fffffc;
7374 bfd_put_32 (abfd, t0, hit_addr);
7375 break;
252b5132 7376
5446cbdf
AM
7377 case R_PPC_REL14:
7378 case R_PPC_REL14_BRTAKEN:
7379 case R_PPC_REL14_BRNTAKEN:
7380 t0 = bfd_get_32 (abfd, hit_addr);
7381 t0 &= ~0xfffc;
7382 t0 |= val & 0xfffc;
7383 bfd_put_32 (abfd, t0, hit_addr);
7384 break;
7385 }
25dbc73a 7386 }
252b5132 7387
d3e454b9 7388 while (branch_fixups != NULL)
25dbc73a 7389 {
d3e454b9
AM
7390 struct one_branch_fixup *f = branch_fixups;
7391 branch_fixups = branch_fixups->next;
25dbc73a
AM
7392 free (f);
7393 }
5446cbdf 7394 }
252b5132 7395
5446cbdf
AM
7396 workaround_change = FALSE;
7397 newsize = trampoff;
795bc6b3 7398 if (htab->params->ppc476_workaround
0e1862bb 7399 && (!bfd_link_relocatable (link_info)
795bc6b3 7400 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7401 {
7402 bfd_vma addr, end_addr;
7403 unsigned int crossings;
795bc6b3 7404 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7405
7406 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7407 end_addr = addr + trampoff;
5446cbdf 7408 addr &= -pagesize;
795bc6b3 7409 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7410 if (crossings != 0)
7411 {
7412 /* Keep space aligned, to ensure the patch code itself does
7413 not cross a page. Don't decrease size calculated on a
7414 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7415 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7416 newsize += crossings * 16;
7417 if (relax_info->workaround_size < newsize)
7418 {
7419 relax_info->workaround_size = newsize;
7420 workaround_change = TRUE;
5446cbdf
AM
7421 }
7422 /* Ensure relocate_section is called. */
7423 isec->flags |= SEC_RELOC;
7424 }
7425 newsize = trampoff + relax_info->workaround_size;
7426 }
7427
d3e454b9
AM
7428 if (htab->params->pic_fixup > 0)
7429 {
7430 picfixup_size -= relax_info->picfixup_size;
7431 if (picfixup_size != 0)
7432 relax_info->picfixup_size += picfixup_size;
7433 newsize += relax_info->picfixup_size;
7434 }
7435
7436 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7437 isec->size = newsize;
7438
25dbc73a
AM
7439 if (isymbuf != NULL
7440 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7441 {
25dbc73a
AM
7442 if (! link_info->keep_memory)
7443 free (isymbuf);
252b5132 7444 else
25dbc73a
AM
7445 {
7446 /* Cache the symbols for elf_link_input_bfd. */
7447 symtab_hdr->contents = (unsigned char *) isymbuf;
7448 }
252b5132
RH
7449 }
7450
25dbc73a
AM
7451 if (contents != NULL
7452 && elf_section_data (isec)->this_hdr.contents != contents)
7453 {
53291d1f 7454 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7455 free (contents);
7456 else
7457 {
7458 /* Cache the section contents for elf_link_input_bfd. */
7459 elf_section_data (isec)->this_hdr.contents = contents;
7460 }
7461 }
252b5132 7462
d3e454b9 7463 changes += picfixup_size;
9bc4e62b 7464 if (changes != 0)
25dbc73a 7465 {
9bc4e62b
NS
7466 /* Append sufficient NOP relocs so we can write out relocation
7467 information for the trampolines. */
d4730f92 7468 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7469 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7470 * sizeof (*new_relocs));
7471 unsigned ix;
5b914448 7472
9bc4e62b
NS
7473 if (!new_relocs)
7474 goto error_return;
7475 memcpy (new_relocs, internal_relocs,
7476 isec->reloc_count * sizeof (*new_relocs));
7477 for (ix = changes; ix--;)
7478 {
7479 irel = new_relocs + ix + isec->reloc_count;
7480
7481 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7482 }
7483 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7484 free (internal_relocs);
9bc4e62b
NS
7485 elf_section_data (isec)->relocs = new_relocs;
7486 isec->reloc_count += changes;
d4730f92
BS
7487 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7488 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7489 }
5446cbdf
AM
7490 else if (internal_relocs != NULL
7491 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7492 free (internal_relocs);
252b5132 7493
5446cbdf 7494 *again = changes != 0 || workaround_change;
b34976b6 7495 return TRUE;
25dbc73a
AM
7496
7497 error_return:
d3e454b9 7498 while (branch_fixups != NULL)
5446cbdf 7499 {
d3e454b9
AM
7500 struct one_branch_fixup *f = branch_fixups;
7501 branch_fixups = branch_fixups->next;
5446cbdf
AM
7502 free (f);
7503 }
25dbc73a
AM
7504 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7505 free (isymbuf);
7506 if (contents != NULL
7507 && elf_section_data (isec)->this_hdr.contents != contents)
7508 free (contents);
7509 if (internal_relocs != NULL
7510 && elf_section_data (isec)->relocs != internal_relocs)
7511 free (internal_relocs);
7512 return FALSE;
252b5132 7513}
252b5132 7514\f
8a696751
AM
7515/* What to do when ld finds relocations against symbols defined in
7516 discarded sections. */
7517
7518static unsigned int
7519ppc_elf_action_discarded (asection *sec)
7520{
7521 if (strcmp (".fixup", sec->name) == 0)
7522 return 0;
7523
7524 if (strcmp (".got2", sec->name) == 0)
7525 return 0;
7526
7527 return _bfd_elf_default_action_discarded (sec);
7528}
c9a2f333 7529\f
25dbc73a 7530/* Fill in the address for a pointer generated in a linker section. */
252b5132 7531
25dbc73a 7532static bfd_vma
76750a2f 7533elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7534 elf_linker_section_t *lsect,
7535 struct elf_link_hash_entry *h,
7536 bfd_vma relocation,
2bb04cf2 7537 const Elf_Internal_Rela *rel)
25dbc73a
AM
7538{
7539 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7540
25dbc73a 7541 BFD_ASSERT (lsect != NULL);
252b5132 7542
25dbc73a 7543 if (h != NULL)
252b5132 7544 {
25dbc73a
AM
7545 /* Handle global symbol. */
7546 struct ppc_elf_link_hash_entry *eh;
252b5132 7547
25dbc73a 7548 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7549 BFD_ASSERT (eh->elf.def_regular);
7550 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7551 }
7552 else
7553 {
7554 /* Handle local symbol. */
7555 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7556
0c8d6e5c 7557 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7558 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7559 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7560 }
252b5132 7561
76750a2f
AM
7562 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7563 rel->r_addend,
7564 lsect);
7565 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7566
76750a2f
AM
7567 /* Offset will always be a multiple of four, so use the bottom bit
7568 as a "written" flag. */
7569 if ((linker_section_ptr->offset & 1) == 0)
7570 {
7571 bfd_put_32 (lsect->section->owner,
7572 relocation + linker_section_ptr->addend,
7573 lsect->section->contents + linker_section_ptr->offset);
7574 linker_section_ptr->offset += 1;
252b5132
RH
7575 }
7576
bd6c6e2b
AM
7577 relocation = (lsect->section->output_section->vma
7578 + lsect->section->output_offset
76750a2f 7579 + linker_section_ptr->offset - 1
bd6c6e2b 7580 - SYM_VAL (lsect->sym));
252b5132 7581
25dbc73a
AM
7582#ifdef DEBUG
7583 fprintf (stderr,
7584 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7585 lsect->name, (long) relocation, (long) relocation);
7586#endif
252b5132 7587
bd6c6e2b 7588 return relocation;
252b5132 7589}
25dbc73a 7590
e054468f
AM
7591#define PPC_LO(v) ((v) & 0xffff)
7592#define PPC_HI(v) (((v) >> 16) & 0xffff)
7593#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7594
7595static void
a7f2871e 7596write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7597 struct bfd_link_info *info)
7598{
7599 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7600 bfd *output_bfd = info->output_bfd;
7601 bfd_vma plt;
e054468f
AM
7602
7603 plt = ((ent->plt.offset & ~1)
7604 + plt_sec->output_section->vma
7605 + plt_sec->output_offset);
e054468f 7606
0e1862bb 7607 if (bfd_link_pic (info))
e054468f
AM
7608 {
7609 bfd_vma got = 0;
7610
7611 if (ent->addend >= 32768)
7612 got = (ent->addend
7613 + ent->sec->output_section->vma
7614 + ent->sec->output_offset);
7615 else if (htab->elf.hgot != NULL)
7616 got = SYM_VAL (htab->elf.hgot);
7617
7618 plt -= got;
7619
7620 if (plt + 0x8000 < 0x10000)
7621 {
7622 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7623 p += 4;
7624 bfd_put_32 (output_bfd, MTCTR_11, p);
7625 p += 4;
7626 bfd_put_32 (output_bfd, BCTR, p);
7627 p += 4;
da3a2088 7628 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7629 p += 4;
7630 }
7631 else
7632 {
7633 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7634 p += 4;
7635 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7636 p += 4;
7637 bfd_put_32 (output_bfd, MTCTR_11, p);
7638 p += 4;
7639 bfd_put_32 (output_bfd, BCTR, p);
7640 p += 4;
7641 }
7642 }
7643 else
7644 {
7645 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7646 p += 4;
7647 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7648 p += 4;
7649 bfd_put_32 (output_bfd, MTCTR_11, p);
7650 p += 4;
7651 bfd_put_32 (output_bfd, BCTR, p);
7652 p += 4;
7653 }
7654}
7655
bd6c6e2b
AM
7656/* Return true if symbol is defined statically. */
7657
7658static bfd_boolean
7659is_static_defined (struct elf_link_hash_entry *h)
7660{
7661 return ((h->root.type == bfd_link_hash_defined
7662 || h->root.type == bfd_link_hash_defweak)
7663 && h->root.u.def.section != NULL
7664 && h->root.u.def.section->output_section != NULL);
7665}
7666
2d0f3896
AM
7667/* If INSN is an opcode that may be used with an @tls operand, return
7668 the transformed insn for TLS optimisation, otherwise return 0. If
7669 REG is non-zero only match an insn with RB or RA equal to REG. */
7670
7671unsigned int
7672_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7673{
7674 unsigned int rtra;
7675
7676 if ((insn & (0x3f << 26)) != 31 << 26)
7677 return 0;
7678
7679 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7680 rtra = insn & ((1 << 26) - (1 << 16));
7681 else if (((insn >> 16) & 0x1f) == reg)
7682 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7683 else
7684 return 0;
7685
7686 if ((insn & (0x3ff << 1)) == 266 << 1)
7687 /* add -> addi. */
7688 insn = 14 << 26;
7689 else if ((insn & (0x1f << 1)) == 23 << 1
7690 && ((insn & (0x1f << 6)) < 14 << 6
7691 || ((insn & (0x1f << 6)) >= 16 << 6
7692 && (insn & (0x1f << 6)) < 24 << 6)))
7693 /* load and store indexed -> dform. */
7694 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7695 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7696 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7697 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7698 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7699 /* lwax -> lwa. */
7700 insn = (58 << 26) | 2;
7701 else
7702 return 0;
7703 insn |= rtra;
7704 return insn;
7705}
7706
766bc656
AM
7707/* If INSN is an opcode that may be used with an @tprel operand, return
7708 the transformed insn for an undefined weak symbol, ie. with the
7709 thread pointer REG operand removed. Otherwise return 0. */
7710
7711unsigned int
7712_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7713{
7714 if ((insn & (0x1f << 16)) == reg << 16
7715 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7716 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7717 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7718 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7719 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7720 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7721 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7722 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7723 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7724 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7725 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7726 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7727 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7728 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7729 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7730 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7731 && (insn & 3) != 1)
7732 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7733 && ((insn & 3) == 0 || (insn & 3) == 3))))
7734 {
7735 insn &= ~(0x1f << 16);
7736 }
7737 else if ((insn & (0x1f << 21)) == reg << 21
7738 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7739 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7740 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7741 {
7742 insn &= ~(0x1f << 21);
7743 insn |= (insn & (0x1f << 16)) << 5;
7744 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7745 insn -= 2 >> 26; /* convert to ori,oris */
7746 }
7747 else
7748 insn = 0;
7749 return insn;
7750}
7751
1fe532cf
AM
7752static bfd_boolean
7753is_insn_ds_form (unsigned int insn)
7754{
7755 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7756 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7757 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7758 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7759}
7760
7761static bfd_boolean
7762is_insn_dq_form (unsigned int insn)
7763{
a680de9a
PB
7764 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7765 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7766 && (insn & 3) == 1));
1fe532cf
AM
7767}
7768
252b5132
RH
7769/* The RELOCATE_SECTION function is called by the ELF backend linker
7770 to handle the relocations for a section.
7771
7772 The relocs are always passed as Rela structures; if the section
7773 actually uses Rel structures, the r_addend field will always be
7774 zero.
7775
7776 This function is responsible for adjust the section contents as
7777 necessary, and (if using Rela relocs and generating a
1049f94e 7778 relocatable output file) adjusting the reloc addend as
252b5132
RH
7779 necessary.
7780
7781 This function does not have to worry about setting the reloc
7782 address or the reloc symbol index.
7783
7784 LOCAL_SYMS is a pointer to the swapped in local symbols.
7785
7786 LOCAL_SECTIONS is an array giving the section in the input file
7787 corresponding to the st_shndx field of each local symbol.
7788
7789 The global hash table entry for the global symbols can be found
7790 via elf_sym_hashes (input_bfd).
7791
1049f94e 7792 When generating relocatable output, this function must handle
252b5132
RH
7793 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7794 going to be the section symbol corresponding to the output
7795 section, which means that the addend must be adjusted
7796 accordingly. */
7797
b34976b6 7798static bfd_boolean
55fd94b0
AM
7799ppc_elf_relocate_section (bfd *output_bfd,
7800 struct bfd_link_info *info,
7801 bfd *input_bfd,
7802 asection *input_section,
7803 bfd_byte *contents,
7804 Elf_Internal_Rela *relocs,
7805 Elf_Internal_Sym *local_syms,
7806 asection **local_sections)
252b5132 7807{
7619e7c7
AM
7808 Elf_Internal_Shdr *symtab_hdr;
7809 struct elf_link_hash_entry **sym_hashes;
7810 struct ppc_elf_link_hash_table *htab;
7811 Elf_Internal_Rela *rel;
c316a17c 7812 Elf_Internal_Rela *wrel;
7619e7c7
AM
7813 Elf_Internal_Rela *relend;
7814 Elf_Internal_Rela outrel;
f95f8542 7815 asection *got2;
252b5132 7816 bfd_vma *local_got_offsets;
b34976b6 7817 bfd_boolean ret = TRUE;
95f0d0d2 7818 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 7819 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7820 unsigned int picfixup_size = 0;
7821 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7822
252b5132 7823#ifdef DEBUG
d003868e
AM
7824 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7825 "%ld relocations%s",
7826 input_bfd, input_section,
7827 (long) input_section->reloc_count,
0e1862bb 7828 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7829#endif
7830
a6aa5195
AM
7831 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7832
e47cd125 7833 /* Initialize howto table if not already done. */
8da6118f 7834 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7835 ppc_elf_howto_init ();
7836
7619e7c7 7837 htab = ppc_elf_hash_table (info);
252b5132 7838 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7839 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7840 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7841 /* We have to handle relocations in vxworks .tls_vars sections
7842 specially, because the dynamic loader is 'weird'. */
0e1862bb 7843 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7844 && !strcmp (input_section->output_section->name,
7845 ".tls_vars"));
d3e454b9
AM
7846 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7847 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7848 rel = wrel = relocs;
7619e7c7 7849 relend = relocs + input_section->reloc_count;
c316a17c 7850 for (; rel < relend; wrel++, rel++)
252b5132 7851 {
7619e7c7
AM
7852 enum elf_ppc_reloc_type r_type;
7853 bfd_vma addend;
7854 bfd_reloc_status_type r;
7855 Elf_Internal_Sym *sym;
7856 asection *sec;
7857 struct elf_link_hash_entry *h;
7858 const char *sym_name;
252b5132
RH
7859 reloc_howto_type *howto;
7860 unsigned long r_symndx;
7861 bfd_vma relocation;
91d6fa6a 7862 bfd_vma branch_bit, from;
7619e7c7
AM
7863 bfd_boolean unresolved_reloc;
7864 bfd_boolean warned;
7865 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7866 struct plt_entry **ifunc;
86c95733 7867 struct reloc_howto_struct alt_howto;
7619e7c7 7868
c316a17c 7869 again:
55fd94b0
AM
7870 r_type = ELF32_R_TYPE (rel->r_info);
7871 sym = NULL;
7872 sec = NULL;
7873 h = NULL;
7619e7c7
AM
7874 unresolved_reloc = FALSE;
7875 warned = FALSE;
252b5132 7876 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7877
252b5132
RH
7878 if (r_symndx < symtab_hdr->sh_info)
7879 {
7880 sym = local_syms + r_symndx;
7881 sec = local_sections[r_symndx];
26c61ae5 7882 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7883
8517fae7 7884 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7885 }
7886 else
7887 {
62d887d4
L
7888 bfd_boolean ignored;
7889
b2a8e766
AM
7890 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7891 r_symndx, symtab_hdr, sym_hashes,
7892 h, sec, relocation,
62d887d4 7893 unresolved_reloc, warned, ignored);
9abc968f 7894
252b5132 7895 sym_name = h->root.root.string;
7619e7c7
AM
7896 }
7897
dbaa2011 7898 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7899 {
7900 /* For relocs against symbols from removed linkonce sections,
7901 or sections discarded by a linker script, we just want the
7902 section contents zeroed. Avoid any special processing. */
7903 howto = NULL;
7904 if (r_type < R_PPC_max)
7905 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7906
7907 _bfd_clear_contents (howto, input_bfd, input_section,
7908 contents + rel->r_offset);
7909 wrel->r_offset = rel->r_offset;
7910 wrel->r_info = 0;
7911 wrel->r_addend = 0;
7912
7913 /* For ld -r, remove relocations in debug sections against
7914 sections defined in discarded sections. Not done for
7915 non-debug to preserve relocs in .eh_frame which the
7916 eh_frame editing code expects to be present. */
7917 if (bfd_link_relocatable (info)
7918 && (input_section->flags & SEC_DEBUGGING))
7919 wrel--;
7920
7921 continue;
ab96bf03
AM
7922 }
7923
0e1862bb 7924 if (bfd_link_relocatable (info))
ab96bf03
AM
7925 {
7926 if (got2 != NULL
7927 && r_type == R_PPC_PLTREL24
f75e0e33 7928 && rel->r_addend != 0)
ab96bf03
AM
7929 {
7930 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7931 addend specifies the GOT pointer offset within .got2. */
7932 rel->r_addend += got2->output_offset;
7933 }
53291d1f
AM
7934 if (r_type != R_PPC_RELAX_PLT
7935 && r_type != R_PPC_RELAX_PLTREL24
7936 && r_type != R_PPC_RELAX)
c316a17c 7937 goto copy_reloc;
ab96bf03
AM
7938 }
7939
7619e7c7
AM
7940 /* TLS optimizations. Replace instruction sequences and relocs
7941 based on information we collected in tls_optimize. We edit
7942 RELOCS so that --emit-relocs will output something sensible
7943 for the final instruction stream. */
7944 tls_mask = 0;
7945 tls_gd = 0;
727fc41e
AM
7946 if (h != NULL)
7947 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7948 else if (local_got_offsets != NULL)
7619e7c7 7949 {
e054468f 7950 struct plt_entry **local_plt;
727fc41e 7951 char *lgot_masks;
e054468f
AM
7952 local_plt
7953 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7954 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7955 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7956 }
7957
7958 /* Ensure reloc mapping code below stays sane. */
7959 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7960 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7961 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7962 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7963 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7964 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7965 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7966 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7967 abort ();
7968 switch (r_type)
7969 {
7970 default:
7971 break;
7972
7973 case R_PPC_GOT_TPREL16:
7974 case R_PPC_GOT_TPREL16_LO:
e054468f 7975 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7976 && (tls_mask & TLS_TPREL) == 0)
7977 {
7978 bfd_vma insn;
91d6fa6a 7979
95f0d0d2 7980 insn = bfd_get_32 (input_bfd,
c316a17c 7981 contents + rel->r_offset - d_offset);
7619e7c7
AM
7982 insn &= 31 << 21;
7983 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 7984 bfd_put_32 (input_bfd, insn,
c316a17c 7985 contents + rel->r_offset - d_offset);
7619e7c7
AM
7986 r_type = R_PPC_TPREL16_HA;
7987 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7988 }
7989 break;
7990
7991 case R_PPC_TLS:
e054468f 7992 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7993 && (tls_mask & TLS_TPREL) == 0)
7994 {
2d0f3896
AM
7995 bfd_vma insn;
7996
95f0d0d2 7997 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
7998 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7999 if (insn == 0)
7619e7c7 8000 abort ();
95f0d0d2 8001 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
8002 r_type = R_PPC_TPREL16_LO;
8003 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 8004
7619e7c7 8005 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
8006 PPC_TPREL16_LO which is at low-order half-word. */
8007 rel->r_offset += d_offset;
7619e7c7
AM
8008 }
8009 break;
8010
8011 case R_PPC_GOT_TLSGD16_HI:
8012 case R_PPC_GOT_TLSGD16_HA:
8013 tls_gd = TLS_TPRELGD;
e054468f 8014 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
8015 goto tls_gdld_hi;
8016 break;
8017
8018 case R_PPC_GOT_TLSLD16_HI:
8019 case R_PPC_GOT_TLSLD16_HA:
e054468f 8020 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
8021 {
8022 tls_gdld_hi:
8023 if ((tls_mask & tls_gd) != 0)
8024 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8025 + R_PPC_GOT_TPREL16);
8026 else
8027 {
4fe5ca5b 8028 rel->r_offset -= d_offset;
95f0d0d2 8029 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
8030 r_type = R_PPC_NONE;
8031 }
8032 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8033 }
8034 break;
8035
8036 case R_PPC_GOT_TLSGD16:
8037 case R_PPC_GOT_TLSGD16_LO:
8038 tls_gd = TLS_TPRELGD;
e054468f 8039 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 8040 goto tls_ldgd_opt;
7619e7c7
AM
8041 break;
8042
8043 case R_PPC_GOT_TLSLD16:
8044 case R_PPC_GOT_TLSLD16_LO:
e054468f 8045 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 8046 {
3a71aa26 8047 unsigned int insn1, insn2;
b7fcf6f6 8048 bfd_vma offset;
7619e7c7 8049
b7fcf6f6 8050 tls_ldgd_opt:
727fc41e
AM
8051 offset = (bfd_vma) -1;
8052 /* If not using the newer R_PPC_TLSGD/LD to mark
8053 __tls_get_addr calls, we must trust that the call
8054 stays with its arg setup insns, ie. that the next
8055 reloc is the __tls_get_addr call associated with
8056 the current reloc. Edit both insns. */
8057 if (input_section->has_tls_get_addr_call
8058 && rel + 1 < relend
8059 && branch_reloc_hash_match (input_bfd, rel + 1,
8060 htab->tls_get_addr))
8061 offset = rel[1].r_offset;
b86ac8e3
AM
8062 /* We read the low GOT_TLS insn because we need to keep
8063 the destination reg. It may be something other than
8064 the usual r3, and moved to r3 before the call by
8065 intervening code. */
95f0d0d2 8066 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 8067 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8068 if ((tls_mask & tls_gd) != 0)
8069 {
8070 /* IE */
b86ac8e3 8071 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 8072 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
8073 if (offset != (bfd_vma) -1)
8074 {
f58d5a2d 8075 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 8076 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 8077 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8078 }
b7fcf6f6
AM
8079 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8080 + R_PPC_GOT_TPREL16);
8081 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8082 }
8083 else
8084 {
8085 /* LE */
b86ac8e3
AM
8086 insn1 &= 0x1f << 21;
8087 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
8088 if (tls_gd == 0)
8089 {
b7fcf6f6 8090 /* Was an LD reloc. */
1d483afe
AM
8091 for (r_symndx = 0;
8092 r_symndx < symtab_hdr->sh_info;
8093 r_symndx++)
8094 if (local_sections[r_symndx] == sec)
8095 break;
8096 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8097 r_symndx = STN_UNDEF;
b7fcf6f6 8098 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8099 if (r_symndx != STN_UNDEF)
1d483afe
AM
8100 rel->r_addend -= (local_syms[r_symndx].st_value
8101 + sec->output_offset
8102 + sec->output_section->vma);
7619e7c7 8103 }
b7fcf6f6
AM
8104 r_type = R_PPC_TPREL16_HA;
8105 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
8106 if (offset != (bfd_vma) -1)
8107 {
8108 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8109 rel[1].r_offset = offset + d_offset;
8110 rel[1].r_addend = rel->r_addend;
8111 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8112 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8113 }
b7fcf6f6 8114 }
95f0d0d2 8115 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 8116 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8117 if (tls_gd == 0)
8118 {
8119 /* We changed the symbol on an LD reloc. Start over
8120 in order to get h, sym, sec etc. right. */
c316a17c 8121 goto again;
7619e7c7 8122 }
252b5132 8123 }
7619e7c7 8124 break;
727fc41e
AM
8125
8126 case R_PPC_TLSGD:
e054468f 8127 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
8128 {
8129 unsigned int insn2;
8130 bfd_vma offset = rel->r_offset;
8131
8132 if ((tls_mask & TLS_TPRELGD) != 0)
8133 {
8134 /* IE */
8135 r_type = R_PPC_NONE;
8136 insn2 = 0x7c631214; /* add 3,3,2 */
8137 }
8138 else
8139 {
8140 /* LE */
8141 r_type = R_PPC_TPREL16_LO;
8142 rel->r_offset += d_offset;
8143 insn2 = 0x38630000; /* addi 3,3,0 */
8144 }
8145 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 8146 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
8147 /* Zap the reloc on the _tls_get_addr call too. */
8148 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8149 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8150 }
8151 break;
8152
8153 case R_PPC_TLSLD:
e054468f 8154 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
8155 {
8156 unsigned int insn2;
8157
8158 for (r_symndx = 0;
8159 r_symndx < symtab_hdr->sh_info;
8160 r_symndx++)
8161 if (local_sections[r_symndx] == sec)
8162 break;
8163 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8164 r_symndx = STN_UNDEF;
727fc41e 8165 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8166 if (r_symndx != STN_UNDEF)
727fc41e
AM
8167 rel->r_addend -= (local_syms[r_symndx].st_value
8168 + sec->output_offset
8169 + sec->output_section->vma);
8170
8171 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8172 rel->r_offset += d_offset;
8173 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8174 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
8175 contents + rel->r_offset - d_offset);
8176 /* Zap the reloc on the _tls_get_addr call too. */
8177 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8178 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8179 goto again;
727fc41e
AM
8180 }
8181 break;
7619e7c7
AM
8182 }
8183
8184 /* Handle other relocations that tweak non-addend part of insn. */
8185 branch_bit = 0;
8186 switch (r_type)
8187 {
8188 default:
8189 break;
8190
8191 /* Branch taken prediction relocations. */
8192 case R_PPC_ADDR14_BRTAKEN:
8193 case R_PPC_REL14_BRTAKEN:
8194 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8195 /* Fall through. */
7619e7c7 8196
4cc11e76 8197 /* Branch not taken prediction relocations. */
7619e7c7
AM
8198 case R_PPC_ADDR14_BRNTAKEN:
8199 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8200 {
8201 bfd_vma insn;
7619e7c7 8202
95f0d0d2 8203 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8204 insn &= ~BRANCH_PREDICT_BIT;
8205 insn |= branch_bit;
7619e7c7 8206
91d6fa6a
NC
8207 from = (rel->r_offset
8208 + input_section->output_offset
8209 + input_section->output_section->vma);
7619e7c7 8210
91d6fa6a
NC
8211 /* Invert 'y' bit if not the default. */
8212 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8213 insn ^= BRANCH_PREDICT_BIT;
8214
95f0d0d2 8215 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a
NC
8216 break;
8217 }
252b5132
RH
8218 }
8219
d3e454b9
AM
8220 if (ELIMINATE_COPY_RELOCS
8221 && h != NULL
8222 && !h->def_regular
8223 && h->protected_def
8224 && ppc_elf_hash_entry (h)->has_addr16_ha
8225 && ppc_elf_hash_entry (h)->has_addr16_lo
8226 && htab->params->pic_fixup > 0)
8227 {
8228 /* Convert lis;addi or lis;load/store accessing a protected
8229 variable defined in a shared library to PIC. */
8230 unsigned int insn;
8231
8232 if (r_type == R_PPC_ADDR16_HA)
8233 {
95f0d0d2 8234 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8235 contents + rel->r_offset - d_offset);
8236 if ((insn & (0x3f << 26)) == (15u << 26)
8237 && (insn & (0x1f << 16)) == 0 /* lis */)
8238 {
8239 bfd_byte *p;
8240 bfd_vma off;
8241 bfd_vma got_addr;
8242
8243 p = (contents + input_section->size
8244 - relax_info->workaround_size
8245 - relax_info->picfixup_size
8246 + picfixup_size);
8247 off = (p - contents) - (rel->r_offset - d_offset);
8248 if (off > 0x1fffffc || (off & 3) != 0)
8249 info->callbacks->einfo
8250 (_("%P: %H: fixup branch overflow\n"),
8251 input_bfd, input_section, rel->r_offset);
8252
95f0d0d2 8253 bfd_put_32 (input_bfd, B | off,
d3e454b9 8254 contents + rel->r_offset - d_offset);
ce558b89
AM
8255 got_addr = (htab->elf.sgot->output_section->vma
8256 + htab->elf.sgot->output_offset
d3e454b9 8257 + (h->got.offset & ~1));
c316a17c
AM
8258 wrel->r_offset = (p - contents) + d_offset;
8259 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8260 wrel->r_addend = got_addr;
d3e454b9
AM
8261 insn &= ~0xffff;
8262 insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8263 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8264
8265 /* Convert lis to lwz, loading address from GOT. */
8266 insn &= ~0xffff;
8267 insn ^= (32u ^ 15u) << 26;
8268 insn |= (insn & (0x1f << 21)) >> 5;
8269 insn |= got_addr & 0xffff;
95f0d0d2 8270 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8271
95f0d0d2 8272 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8273 picfixup_size += 12;
8274
8275 /* Use one of the spare relocs, so --emit-relocs
8276 output is reasonable. */
8277 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8278 wrel++, rel++;
8279 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8280 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8281 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8282
8283 /* Continue on as if we had a got reloc, to output
8284 dynamic reloc. */
8285 r_type = R_PPC_GOT16_LO;
8286 }
8287 else
8288 info->callbacks->einfo
695344c0 8289 /* xgettext:c-format */
d3e454b9
AM
8290 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8291 input_bfd, input_section, rel->r_offset,
8292 "R_PPC_ADDR16_HA", insn);
8293 }
8294 else if (r_type == R_PPC_ADDR16_LO)
8295 {
95f0d0d2 8296 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8297 contents + rel->r_offset - d_offset);
8298 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8299 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8300 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8301 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8302 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8303 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8304 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8305 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8306 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8307 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8308 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8309 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8310 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8311 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8312 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8313 && (insn & 3) != 1)
8314 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8315 && ((insn & 3) == 0 || (insn & 3) == 3)))
8316 {
8317 /* Arrange to apply the reloc addend, if any. */
8318 relocation = 0;
8319 unresolved_reloc = FALSE;
8320 rel->r_info = ELF32_R_INFO (0, r_type);
8321 }
8322 else
8323 info->callbacks->einfo
695344c0 8324 /* xgettext:c-format */
d3e454b9
AM
8325 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8326 input_bfd, input_section, rel->r_offset,
8327 "R_PPC_ADDR16_LO", insn);
8328 }
8329 }
8330
e054468f 8331 ifunc = NULL;
25f23106 8332 if (!htab->is_vxworks)
e054468f 8333 {
de972ffa
AM
8334 struct plt_entry *ent;
8335
e054468f
AM
8336 if (h != NULL)
8337 {
8338 if (h->type == STT_GNU_IFUNC)
8339 ifunc = &h->plt.plist;
8340 }
de972ffa
AM
8341 else if (local_got_offsets != NULL
8342 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8343 {
de972ffa 8344 struct plt_entry **local_plt;
e054468f 8345
de972ffa
AM
8346 local_plt = (struct plt_entry **) (local_got_offsets
8347 + symtab_hdr->sh_info);
8348 ifunc = local_plt + r_symndx;
e054468f 8349 }
e054468f 8350
de972ffa
AM
8351 ent = NULL;
8352 if (ifunc != NULL
0e1862bb 8353 && (!bfd_link_pic (info)
de972ffa
AM
8354 || is_branch_reloc (r_type)))
8355 {
8356 addend = 0;
0e1862bb 8357 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8358 addend = rel->r_addend;
8359 ent = find_plt_ent (ifunc, got2, addend);
8360 }
8361 if (ent != NULL)
8362 {
888a7fc3
AM
8363 if (bfd_link_pic (info)
8364 && ent->sec != got2
8365 && htab->plt_type != PLT_NEW
8366 && (!htab->elf.dynamic_sections_created
8367 || h == NULL
8368 || h->dynindx == -1))
8369 {
8370 /* Uh oh, we are going to create a pic glink stub
8371 for an ifunc (here for h == NULL and later in
8372 finish_dynamic_symbol for h != NULL), and
8373 apparently are using code compiled with
8374 -mbss-plt. The difficulty is that -mbss-plt code
8375 gives no indication via a magic PLTREL24 addend
8376 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8377 is pointing into a .got2 section (and how far
8378 into .got2). */
8379 info->callbacks->einfo
695344c0 8380 /* xgettext:c-format */
888a7fc3
AM
8381 (_("%X%P: %H: unsupported bss-plt -fPIC ifunc %s\n"),
8382 input_bfd, input_section, rel->r_offset, sym_name);
8383 }
e054468f
AM
8384 if (h == NULL && (ent->plt.offset & 1) == 0)
8385 {
8386 Elf_Internal_Rela rela;
8387 bfd_byte *loc;
8388
ce558b89
AM
8389 rela.r_offset = (htab->elf.iplt->output_section->vma
8390 + htab->elf.iplt->output_offset
e054468f
AM
8391 + ent->plt.offset);
8392 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8393 rela.r_addend = relocation;
ce558b89
AM
8394 loc = htab->elf.irelplt->contents;
8395 loc += (htab->elf.irelplt->reloc_count++
25f23106 8396 * sizeof (Elf32_External_Rela));
e054468f
AM
8397 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8398
8399 ent->plt.offset |= 1;
8400 }
8401 if (h == NULL && (ent->glink_offset & 1) == 0)
8402 {
a7f2871e
AM
8403 unsigned char *p = ((unsigned char *) htab->glink->contents
8404 + ent->glink_offset);
ce558b89 8405 write_glink_stub (ent, htab->elf.iplt, p, info);
e054468f
AM
8406 ent->glink_offset |= 1;
8407 }
8408
8409 unresolved_reloc = FALSE;
8410 if (htab->plt_type == PLT_NEW
8411 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8412 || h == NULL
8413 || h->dynindx == -1)
e054468f
AM
8414 relocation = (htab->glink->output_section->vma
8415 + htab->glink->output_offset
8416 + (ent->glink_offset & ~1));
8417 else
ce558b89
AM
8418 relocation = (htab->elf.splt->output_section->vma
8419 + htab->elf.splt->output_offset
e054468f
AM
8420 + ent->plt.offset);
8421 }
8422 }
8423
7619e7c7
AM
8424 addend = rel->r_addend;
8425 tls_type = 0;
8426 howto = NULL;
55fd94b0
AM
8427 if (r_type < R_PPC_max)
8428 howto = ppc_elf_howto_table[r_type];
7619e7c7 8429 switch (r_type)
252b5132
RH
8430 {
8431 default:
25f53a85 8432 info->callbacks->einfo
695344c0 8433 /* xgettext:c-format */
8de848d8 8434 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8435 input_bfd, (int) r_type, sym_name);
252b5132
RH
8436
8437 bfd_set_error (bfd_error_bad_value);
b34976b6 8438 ret = FALSE;
c316a17c 8439 goto copy_reloc;
252b5132 8440
7619e7c7
AM
8441 case R_PPC_NONE:
8442 case R_PPC_TLS:
727fc41e
AM
8443 case R_PPC_TLSGD:
8444 case R_PPC_TLSLD:
7619e7c7
AM
8445 case R_PPC_EMB_MRKREF:
8446 case R_PPC_GNU_VTINHERIT:
8447 case R_PPC_GNU_VTENTRY:
c316a17c 8448 goto copy_reloc;
7595d193 8449
7619e7c7
AM
8450 /* GOT16 relocations. Like an ADDR16 using the symbol's
8451 address in the GOT as relocation value instead of the
8452 symbol's value itself. Also, create a GOT entry for the
8453 symbol and put the symbol value there. */
8454 case R_PPC_GOT_TLSGD16:
8455 case R_PPC_GOT_TLSGD16_LO:
8456 case R_PPC_GOT_TLSGD16_HI:
8457 case R_PPC_GOT_TLSGD16_HA:
8458 tls_type = TLS_TLS | TLS_GD;
8459 goto dogot;
8460
8461 case R_PPC_GOT_TLSLD16:
8462 case R_PPC_GOT_TLSLD16_LO:
8463 case R_PPC_GOT_TLSLD16_HI:
8464 case R_PPC_GOT_TLSLD16_HA:
8465 tls_type = TLS_TLS | TLS_LD;
8466 goto dogot;
8467
8468 case R_PPC_GOT_TPREL16:
8469 case R_PPC_GOT_TPREL16_LO:
8470 case R_PPC_GOT_TPREL16_HI:
8471 case R_PPC_GOT_TPREL16_HA:
8472 tls_type = TLS_TLS | TLS_TPREL;
8473 goto dogot;
8474
8475 case R_PPC_GOT_DTPREL16:
8476 case R_PPC_GOT_DTPREL16_LO:
8477 case R_PPC_GOT_DTPREL16_HI:
8478 case R_PPC_GOT_DTPREL16_HA:
8479 tls_type = TLS_TLS | TLS_DTPREL;
8480 goto dogot;
8481
8482 case R_PPC_GOT16:
8483 case R_PPC_GOT16_LO:
8484 case R_PPC_GOT16_HI:
8485 case R_PPC_GOT16_HA:
727fc41e 8486 tls_mask = 0;
7619e7c7
AM
8487 dogot:
8488 {
8489 /* Relocation is to the entry for this symbol in the global
8490 offset table. */
8491 bfd_vma off;
8492 bfd_vma *offp;
8493 unsigned long indx;
8494
ce558b89 8495 if (htab->elf.sgot == NULL)
7619e7c7
AM
8496 abort ();
8497
8498 indx = 0;
8499 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8500 && (h == NULL
f5385ebf 8501 || !h->def_dynamic))
7619e7c7
AM
8502 offp = &htab->tlsld_got.offset;
8503 else if (h != NULL)
8504 {
8505 bfd_boolean dyn;
8506 dyn = htab->elf.dynamic_sections_created;
0e1862bb
L
8507 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
8508 || (bfd_link_pic (info)
7619e7c7
AM
8509 && SYMBOL_REFERENCES_LOCAL (info, h)))
8510 /* This is actually a static link, or it is a
8511 -Bsymbolic link and the symbol is defined
8512 locally, or the symbol was forced to be local
8513 because of a version file. */
8514 ;
8515 else
8516 {
14acf4dc 8517 BFD_ASSERT (h->dynindx != -1);
7619e7c7
AM
8518 indx = h->dynindx;
8519 unresolved_reloc = FALSE;
8520 }
8521 offp = &h->got.offset;
8522 }
8523 else
8524 {
8525 if (local_got_offsets == NULL)
8526 abort ();
8527 offp = &local_got_offsets[r_symndx];
8528 }
8529
8530 /* The offset must always be a multiple of 4. We use the
8531 least significant bit to record whether we have already
8532 processed this entry. */
8533 off = *offp;
8534 if ((off & 1) != 0)
8535 off &= ~1;
8536 else
8537 {
70bccea4
AM
8538 unsigned int tls_m = (tls_mask
8539 & (TLS_LD | TLS_GD | TLS_DTPREL
8540 | TLS_TPREL | TLS_TPRELGD));
8541
8542 if (offp == &htab->tlsld_got.offset)
8543 tls_m = TLS_LD;
8544 else if (h == NULL
f5385ebf 8545 || !h->def_dynamic)
70bccea4
AM
8546 tls_m &= ~TLS_LD;
8547
8548 /* We might have multiple got entries for this sym.
8549 Initialize them all. */
8550 do
7619e7c7 8551 {
70bccea4
AM
8552 int tls_ty = 0;
8553
8554 if ((tls_m & TLS_LD) != 0)
7619e7c7 8555 {
70bccea4
AM
8556 tls_ty = TLS_TLS | TLS_LD;
8557 tls_m &= ~TLS_LD;
8558 }
8559 else if ((tls_m & TLS_GD) != 0)
8560 {
8561 tls_ty = TLS_TLS | TLS_GD;
8562 tls_m &= ~TLS_GD;
8563 }
8564 else if ((tls_m & TLS_DTPREL) != 0)
8565 {
8566 tls_ty = TLS_TLS | TLS_DTPREL;
8567 tls_m &= ~TLS_DTPREL;
8568 }
8569 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8570 {
8571 tls_ty = TLS_TLS | TLS_TPREL;
8572 tls_m = 0;
7619e7c7 8573 }
7619e7c7 8574
70bccea4 8575 /* Generate relocs for the dynamic linker. */
0e1862bb 8576 if ((bfd_link_pic (info) || indx != 0)
d6e14abc
AM
8577 && (offp == &htab->tlsld_got.offset
8578 || h == NULL
4e795f50
AM
8579 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8580 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 8581 {
ce558b89 8582 asection *rsec = htab->elf.srelgot;
91d6fa6a 8583 bfd_byte * loc;
91e21fb7 8584
0bed072f 8585 if (ifunc != NULL)
ce558b89
AM
8586 rsec = htab->elf.irelplt;
8587 outrel.r_offset = (htab->elf.sgot->output_section->vma
8588 + htab->elf.sgot->output_offset
70bccea4 8589 + off);
e515b051 8590 outrel.r_addend = 0;
70bccea4
AM
8591 if (tls_ty & (TLS_LD | TLS_GD))
8592 {
8593 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8594 if (tls_ty == (TLS_TLS | TLS_GD))
8595 {
25f23106
AM
8596 loc = rsec->contents;
8597 loc += (rsec->reloc_count++
70bccea4
AM
8598 * sizeof (Elf32_External_Rela));
8599 bfd_elf32_swap_reloca_out (output_bfd,
8600 &outrel, loc);
e515b051 8601 outrel.r_offset += 4;
70bccea4
AM
8602 outrel.r_info
8603 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8604 }
8605 }
8606 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8607 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8608 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8609 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8610 else if (indx != 0)
70bccea4 8611 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8612 else if (ifunc != NULL)
8613 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8614 else
8615 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8616 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8617 {
8618 outrel.r_addend += relocation;
8619 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8620 {
8621 if (htab->elf.tls_sec == NULL)
8622 outrel.r_addend = 0;
8623 else
8624 outrel.r_addend -= htab->elf.tls_sec->vma;
8625 }
e515b051 8626 }
25f23106
AM
8627 loc = rsec->contents;
8628 loc += (rsec->reloc_count++
70bccea4
AM
8629 * sizeof (Elf32_External_Rela));
8630 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8631 }
8632
70bccea4
AM
8633 /* Init the .got section contents if we're not
8634 emitting a reloc. */
8635 else
7619e7c7 8636 {
70bccea4
AM
8637 bfd_vma value = relocation;
8638
7b609f53
AM
8639 if (tls_ty == (TLS_TLS | TLS_LD))
8640 value = 1;
8641 else if (tls_ty != 0)
70bccea4 8642 {
989f9879
AM
8643 if (htab->elf.tls_sec == NULL)
8644 value = 0;
8645 else
8646 {
8647 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8648 if (tls_ty == (TLS_TLS | TLS_TPREL))
8649 value += DTP_OFFSET - TP_OFFSET;
8650 }
70bccea4 8651
7b609f53
AM
8652 if (tls_ty == (TLS_TLS | TLS_GD))
8653 {
95f0d0d2 8654 bfd_put_32 (input_bfd, value,
ce558b89 8655 htab->elf.sgot->contents + off + 4);
7b609f53
AM
8656 value = 1;
8657 }
70bccea4 8658 }
95f0d0d2 8659 bfd_put_32 (input_bfd, value,
ce558b89 8660 htab->elf.sgot->contents + off);
7619e7c7 8661 }
70bccea4
AM
8662
8663 off += 4;
8664 if (tls_ty & (TLS_LD | TLS_GD))
8665 off += 4;
7619e7c7 8666 }
70bccea4
AM
8667 while (tls_m != 0);
8668
8669 off = *offp;
8670 *offp = off | 1;
7619e7c7
AM
8671 }
8672
8673 if (off >= (bfd_vma) -2)
8674 abort ();
8675
70bccea4
AM
8676 if ((tls_type & TLS_TLS) != 0)
8677 {
8678 if (tls_type != (TLS_TLS | TLS_LD))
8679 {
8680 if ((tls_mask & TLS_LD) != 0
8681 && !(h == NULL
f5385ebf 8682 || !h->def_dynamic))
70bccea4
AM
8683 off += 8;
8684 if (tls_type != (TLS_TLS | TLS_GD))
8685 {
8686 if ((tls_mask & TLS_GD) != 0)
8687 off += 8;
8688 if (tls_type != (TLS_TLS | TLS_DTPREL))
8689 {
8690 if ((tls_mask & TLS_DTPREL) != 0)
8691 off += 4;
8692 }
8693 }
8694 }
8695 }
8696
d3e454b9
AM
8697 /* If here for a picfixup, we're done. */
8698 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8699 goto copy_reloc;
d3e454b9 8700
ce558b89
AM
8701 relocation = (htab->elf.sgot->output_section->vma
8702 + htab->elf.sgot->output_offset
e87d4038
AM
8703 + off
8704 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8705
8706 /* Addends on got relocations don't make much sense.
8707 x+off@got is actually x@got+off, and since the got is
8708 generated by a hash table traversal, the value in the
8709 got at entry m+n bears little relation to the entry m. */
8710 if (addend != 0)
25f53a85 8711 info->callbacks->einfo
695344c0 8712 /* xgettext:c-format */
8de848d8 8713 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8714 input_bfd, input_section, rel->r_offset,
7b609f53 8715 howto->name,
7619e7c7
AM
8716 sym_name);
8717 }
86c95733 8718 break;
7619e7c7 8719
86c95733 8720 /* Relocations that need no special processing. */
7619e7c7 8721 case R_PPC_LOCAL24PC:
252b5132
RH
8722 /* It makes no sense to point a local relocation
8723 at a symbol not in this object. */
7b609f53 8724 if (unresolved_reloc)
252b5132 8725 {
1a72702b
AM
8726 (*info->callbacks->undefined_symbol) (info,
8727 h->root.root.string,
8728 input_bfd,
8729 input_section,
8730 rel->r_offset,
8731 TRUE);
c316a17c 8732 goto copy_reloc;
252b5132 8733 }
888a7fc3
AM
8734 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8735 {
8736 /* @local on an ifunc does not really make sense since
8737 the ifunc resolver can take you anywhere. More
8738 seriously, calls to ifuncs must go through a plt call
8739 stub, and for pic the plt call stubs uses r30 to
8740 access the PLT. The problem is that a call that is
8741 local won't have the +32k reloc addend trick marking
8742 -fPIC code, so the linker won't know whether r30 is
8743 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8744 /* xgettext:c-format */
888a7fc3
AM
8745 info->callbacks->einfo (_("%X%P: %H: @local call to ifunc %s\n"),
8746 input_bfd, input_section, rel->r_offset,
8747 h->root.root.string);
8748 }
252b5132
RH
8749 break;
8750
7619e7c7
AM
8751 case R_PPC_DTPREL16:
8752 case R_PPC_DTPREL16_LO:
8753 case R_PPC_DTPREL16_HI:
8754 case R_PPC_DTPREL16_HA:
989f9879
AM
8755 if (htab->elf.tls_sec != NULL)
8756 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8757 break;
8758
70bccea4
AM
8759 /* Relocations that may need to be propagated if this is a shared
8760 object. */
7619e7c7
AM
8761 case R_PPC_TPREL16:
8762 case R_PPC_TPREL16_LO:
8763 case R_PPC_TPREL16_HI:
8764 case R_PPC_TPREL16_HA:
766bc656
AM
8765 if (h != NULL
8766 && h->root.type == bfd_link_hash_undefweak
8767 && h->dynindx == -1)
8768 {
8769 /* Make this relocation against an undefined weak symbol
8770 resolve to zero. This is really just a tweak, since
8771 code using weak externs ought to check that they are
8772 defined before using them. */
8773 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 8774 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
8775 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8776 if (insn != 0)
95f0d0d2 8777 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
8778 break;
8779 }
989f9879
AM
8780 if (htab->elf.tls_sec != NULL)
8781 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8782 /* The TPREL16 relocs shouldn't really be used in shared
8783 libs as they will result in DT_TEXTREL being set, but
8784 support them anyway. */
8785 goto dodyn;
8786
8787 case R_PPC_TPREL32:
989f9879
AM
8788 if (htab->elf.tls_sec != NULL)
8789 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8790 goto dodyn;
8791
8792 case R_PPC_DTPREL32:
989f9879
AM
8793 if (htab->elf.tls_sec != NULL)
8794 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8795 goto dodyn;
8796
e515b051
AM
8797 case R_PPC_DTPMOD32:
8798 relocation = 1;
8799 addend = 0;
8800 goto dodyn;
8801
d7128ce4
AM
8802 case R_PPC_REL16:
8803 case R_PPC_REL16_LO:
8804 case R_PPC_REL16_HI:
8805 case R_PPC_REL16_HA:
a680de9a 8806 case R_PPC_REL16DX_HA:
d7128ce4
AM
8807 break;
8808
7619e7c7 8809 case R_PPC_REL32:
625af618
AM
8810 if (h == NULL || h == htab->elf.hgot)
8811 break;
8812 /* fall through */
8813
8814 case R_PPC_ADDR32:
8815 case R_PPC_ADDR16:
8816 case R_PPC_ADDR16_LO:
8817 case R_PPC_ADDR16_HI:
8818 case R_PPC_ADDR16_HA:
8819 case R_PPC_UADDR32:
8820 case R_PPC_UADDR16:
8821 goto dodyn;
8822
b9c361e0
JL
8823 case R_PPC_VLE_REL8:
8824 case R_PPC_VLE_REL15:
8825 case R_PPC_VLE_REL24:
625af618 8826 case R_PPC_REL24:
7619e7c7
AM
8827 case R_PPC_REL14:
8828 case R_PPC_REL14_BRTAKEN:
8829 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8830 /* If these relocations are not to a named symbol, they can be
8831 handled right here, no need to bother the dynamic linker. */
89200bf8 8832 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8833 || h == htab->elf.hgot)
252b5132 8834 break;
70bccea4 8835 /* fall through */
252b5132 8836
7619e7c7 8837 case R_PPC_ADDR24:
7619e7c7
AM
8838 case R_PPC_ADDR14:
8839 case R_PPC_ADDR14_BRTAKEN:
8840 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8841 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8842 break;
8843 /* fall through */
8844
7619e7c7 8845 dodyn:
3348747a
NS
8846 if ((input_section->flags & SEC_ALLOC) == 0
8847 || is_vxworks_tls)
c87b5a93 8848 break;
c87b5a93 8849
0e1862bb 8850 if ((bfd_link_pic (info)
89200bf8
AM
8851 && !(h != NULL
8852 && ((h->root.type == bfd_link_hash_undefined
8853 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8854 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8855 || (h->root.type == bfd_link_hash_undefweak
8856 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 8857 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8858 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8859 || (ELIMINATE_COPY_RELOCS
0e1862bb 8860 && !bfd_link_pic (info)
ee05f2fe
AM
8861 && h != NULL
8862 && h->dynindx != -1
f5385ebf 8863 && !h->non_got_ref
d3e454b9
AM
8864 && !h->def_regular
8865 && !(h->protected_def
8866 && ppc_elf_hash_entry (h)->has_addr16_ha
8867 && ppc_elf_hash_entry (h)->has_addr16_lo
8868 && htab->params->pic_fixup > 0)))
252b5132 8869 {
0bb2d96a 8870 int skip;
f95f8542
AM
8871 bfd_byte *loc;
8872 asection *sreloc;
252b5132 8873#ifdef DEBUG
55fd94b0
AM
8874 fprintf (stderr, "ppc_elf_relocate_section needs to "
8875 "create relocation for %s\n",
70bccea4
AM
8876 (h && h->root.root.string
8877 ? h->root.root.string : "<unknown>"));
252b5132
RH
8878#endif
8879
8880 /* When generating a shared object, these relocations
70bccea4
AM
8881 are copied into the output file to be resolved at run
8882 time. */
f95f8542
AM
8883 sreloc = elf_section_data (input_section)->sreloc;
8884 if (ifunc)
ce558b89 8885 sreloc = htab->elf.irelplt;
252b5132 8886 if (sreloc == NULL)
f95f8542 8887 return FALSE;
252b5132 8888
0bb2d96a 8889 skip = 0;
5b914448
AM
8890 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8891 input_section,
8892 rel->r_offset);
0bb2d96a
JJ
8893 if (outrel.r_offset == (bfd_vma) -1
8894 || outrel.r_offset == (bfd_vma) -2)
8895 skip = (int) outrel.r_offset;
252b5132
RH
8896 outrel.r_offset += (input_section->output_section->vma
8897 + input_section->output_offset);
8898
8899 if (skip)
8900 memset (&outrel, 0, sizeof outrel);
89200bf8
AM
8901 else if ((h != NULL
8902 && (h->root.type == bfd_link_hash_undefined
8903 || h->root.type == bfd_link_hash_undefweak))
8904 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8905 {
14acf4dc 8906 BFD_ASSERT (h->dynindx != -1);
7619e7c7 8907 unresolved_reloc = FALSE;
252b5132
RH
8908 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8909 outrel.r_addend = rel->r_addend;
8910 }
8911 else
8912 {
47388f4c
AM
8913 outrel.r_addend = relocation + rel->r_addend;
8914
25f23106 8915 if (r_type != R_PPC_ADDR32)
252b5132 8916 {
89200bf8 8917 long indx = 0;
252b5132 8918
25f23106
AM
8919 if (ifunc != NULL)
8920 {
8921 /* If we get here when building a static
8922 executable, then the libc startup function
8923 responsible for applying indirect function
8924 relocations is going to complain about
8925 the reloc type.
8926 If we get here when building a dynamic
8927 executable, it will be because we have
8928 a text relocation. The dynamic loader
8929 will set the text segment writable and
8930 non-executable to apply text relocations.
8931 So we'll segfault when trying to run the
8932 indirection function to resolve the reloc. */
25f53a85 8933 info->callbacks->einfo
695344c0 8934 /* xgettext:c-format */
8de848d8 8935 (_("%P: %H: relocation %s for indirect "
25f53a85
AM
8936 "function %s unsupported\n"),
8937 input_bfd, input_section, rel->r_offset,
25f23106
AM
8938 howto->name,
8939 sym_name);
8940 ret = FALSE;
8941 }
cf35638d 8942 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8943 ;
252b5132
RH
8944 else if (sec == NULL || sec->owner == NULL)
8945 {
8946 bfd_set_error (bfd_error_bad_value);
89200bf8 8947 ret = FALSE;
252b5132
RH
8948 }
8949 else
8950 {
8951 asection *osec;
8952
47388f4c
AM
8953 /* We are turning this relocation into one
8954 against a section symbol. It would be
8955 proper to subtract the symbol's value,
8956 osec->vma, from the emitted reloc addend,
25f23106
AM
8957 but ld.so expects buggy relocs.
8958 FIXME: Why not always use a zero index? */
252b5132
RH
8959 osec = sec->output_section;
8960 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8961 if (indx == 0)
8962 {
8963 osec = htab->elf.text_index_section;
8964 indx = elf_section_data (osec)->dynindx;
8965 }
8966 BFD_ASSERT (indx != 0);
252b5132 8967#ifdef DEBUG
74541ad4 8968 if (indx == 0)
e460dd0d 8969 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8970 indx, osec->name, osec->flags,
8971 h->root.root.string);
252b5132
RH
8972#endif
8973 }
8974
8975 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8976 }
25f23106
AM
8977 else if (ifunc != NULL)
8978 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8979 else
8980 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8981 }
8982
947216bf
AM
8983 loc = sreloc->contents;
8984 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8985 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8986
2243deae 8987 if (skip == -1)
c316a17c 8988 goto copy_reloc;
2243deae
L
8989
8990 /* This reloc will be computed at runtime. We clear the memory
8991 so that it contains predictable value. */
8992 if (! skip
8993 && ((input_section->flags & SEC_ALLOC) != 0
8994 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8995 {
8996 relocation = howto->pc_relative ? outrel.r_offset : 0;
8997 addend = 0;
8998 break;
8999 }
252b5132 9000 }
252b5132
RH
9001 break;
9002
32af9f6e
AM
9003 case R_PPC_RELAX_PLT:
9004 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
9005 if (h != NULL)
9006 {
32af9f6e
AM
9007 struct plt_entry *ent;
9008 bfd_vma got2_addend = 0;
9009
9010 if (r_type == R_PPC_RELAX_PLTREL24)
9011 {
0e1862bb 9012 if (bfd_link_pic (info))
32af9f6e
AM
9013 got2_addend = addend;
9014 addend = 0;
9015 }
9016 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
9017 if (htab->plt_type == PLT_NEW)
9018 relocation = (htab->glink->output_section->vma
9019 + htab->glink->output_offset
9020 + ent->glink_offset);
9021 else
ce558b89
AM
9022 relocation = (htab->elf.splt->output_section->vma
9023 + htab->elf.splt->output_offset
de972ffa
AM
9024 + ent->plt.offset);
9025 }
1a0670f3 9026 /* Fall through. */
b4a38de6 9027
32af9f6e 9028 case R_PPC_RELAX:
9abc968f 9029 {
53291d1f
AM
9030 const int *stub;
9031 size_t size;
9032 size_t insn_offset = rel->r_offset;
9033 unsigned int insn;
9abc968f 9034
0e1862bb 9035 if (bfd_link_pic (info))
53291d1f
AM
9036 {
9037 relocation -= (input_section->output_section->vma
9038 + input_section->output_offset
9039 + rel->r_offset - 4);
9040 stub = shared_stub_entry;
95f0d0d2
AM
9041 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
9042 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
9043 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
9044 stub += 3;
9045 size = ARRAY_SIZE (shared_stub_entry) - 3;
9046 }
9047 else
9048 {
9049 stub = stub_entry;
9050 size = ARRAY_SIZE (stub_entry);
9051 }
9abc968f 9052
9abc968f 9053 relocation += addend;
0e1862bb 9054 if (bfd_link_relocatable (info))
53291d1f
AM
9055 relocation = 0;
9056
9057 /* First insn is HA, second is LO. */
9058 insn = *stub++;
9059 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 9060 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9061 insn_offset += 4;
9062
9063 insn = *stub++;
9064 insn |= relocation & 0xffff;
95f0d0d2 9065 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9066 insn_offset += 4;
9067 size -= 2;
9068
9069 while (size != 0)
9070 {
9071 insn = *stub++;
9072 --size;
95f0d0d2 9073 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9074 insn_offset += 4;
9075 }
9bc4e62b
NS
9076
9077 /* Rewrite the reloc and convert one of the trailing nop
9078 relocs to describe this relocation. */
9079 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9080 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
9081 wrel->r_offset = rel->r_offset + d_offset;
9082 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9083 wrel->r_addend = rel->r_addend;
9084 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9085 wrel++, rel++;
9086 wrel->r_offset += 4;
9087 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 9088 }
8517fae7 9089 continue;
deaaf2f3 9090
70bccea4 9091 /* Indirect .sdata relocation. */
7619e7c7 9092 case R_PPC_EMB_SDAI16:
c9a2f333 9093 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
9094 if (!is_static_defined (htab->sdata[0].sym))
9095 {
9096 unresolved_reloc = TRUE;
9097 break;
9098 }
7619e7c7 9099 relocation
76750a2f
AM
9100 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9101 h, relocation, rel);
bd6c6e2b 9102 addend = 0;
252b5132
RH
9103 break;
9104
70bccea4 9105 /* Indirect .sdata2 relocation. */
7619e7c7 9106 case R_PPC_EMB_SDA2I16:
c9a2f333 9107 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9108 if (!is_static_defined (htab->sdata[1].sym))
9109 {
9110 unresolved_reloc = TRUE;
9111 break;
9112 }
7619e7c7 9113 relocation
76750a2f
AM
9114 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9115 h, relocation, rel);
bd6c6e2b 9116 addend = 0;
252b5132
RH
9117 break;
9118
70bccea4
AM
9119 /* Handle the TOC16 reloc. We want to use the offset within the .got
9120 section, not the actual VMA. This is appropriate when generating
9121 an embedded ELF object, for which the .got section acts like the
9122 AIX .toc section. */
7619e7c7 9123 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9124 if (sec == NULL || sec->output_section == NULL)
9125 {
9126 unresolved_reloc = TRUE;
9127 break;
9128 }
a0f49396
NC
9129 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9130 ".got") == 0
9131 || strcmp (bfd_get_section_name (sec->owner, sec),
9132 ".cgot") == 0);
252b5132 9133
3b4f3a11 9134 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9135 break;
9136
7619e7c7 9137 case R_PPC_PLTREL24:
f75e0e33
AM
9138 if (h != NULL && ifunc == NULL)
9139 {
cbf95972
AM
9140 struct plt_entry *ent;
9141
9142 ent = find_plt_ent (&h->plt.plist, got2,
9143 bfd_link_pic (info) ? addend : 0);
f75e0e33 9144 if (ent == NULL
ce558b89 9145 || htab->elf.splt == NULL)
f75e0e33
AM
9146 {
9147 /* We didn't make a PLT entry for this symbol. This
9148 happens when statically linking PIC code, or when
9149 using -Bsymbolic. */
9150 }
9151 else
9152 {
9153 /* Relocation is to the entry for this symbol in the
9154 procedure linkage table. */
9155 unresolved_reloc = FALSE;
9156 if (htab->plt_type == PLT_NEW)
9157 relocation = (htab->glink->output_section->vma
9158 + htab->glink->output_offset
9159 + ent->glink_offset);
9160 else
ce558b89
AM
9161 relocation = (htab->elf.splt->output_section->vma
9162 + htab->elf.splt->output_offset
f75e0e33
AM
9163 + ent->plt.offset);
9164 }
9165 }
252b5132 9166
f75e0e33
AM
9167 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9168 addend specifies the GOT pointer offset within .got2.
9169 Don't apply it to the relocation field. */
9170 addend = 0;
8da6118f 9171 break;
252b5132 9172
70bccea4 9173 /* Relocate against _SDA_BASE_. */
7619e7c7 9174 case R_PPC_SDAREL16:
252b5132
RH
9175 {
9176 const char *name;
bd6c6e2b 9177 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9178
bd6c6e2b
AM
9179 if (sec == NULL
9180 || sec->output_section == NULL
9181 || !is_static_defined (sda))
3b4f3a11
AM
9182 {
9183 unresolved_reloc = TRUE;
9184 break;
9185 }
bd6c6e2b 9186 addend -= SYM_VAL (sda);
3b4f3a11 9187
a0f49396 9188 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9189 if (!(strcmp (name, ".sdata") == 0
9190 || strcmp (name, ".sbss") == 0))
252b5132 9191 {
25f53a85 9192 info->callbacks->einfo
695344c0 9193 /* xgettext:c-format */
8de848d8 9194 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9195 "in the wrong output section (%s)\n"),
d003868e 9196 input_bfd,
55fd94b0
AM
9197 sym_name,
9198 howto->name,
9199 name);
252b5132 9200 }
252b5132
RH
9201 }
9202 break;
9203
70bccea4 9204 /* Relocate against _SDA2_BASE_. */
7619e7c7 9205 case R_PPC_EMB_SDA2REL:
252b5132
RH
9206 {
9207 const char *name;
bd6c6e2b 9208 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9209
bd6c6e2b
AM
9210 if (sec == NULL
9211 || sec->output_section == NULL
9212 || !is_static_defined (sda))
3b4f3a11
AM
9213 {
9214 unresolved_reloc = TRUE;
9215 break;
9216 }
bd6c6e2b 9217 addend -= SYM_VAL (sda);
3b4f3a11 9218
a0f49396 9219 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9220 if (!(strcmp (name, ".sdata2") == 0
9221 || strcmp (name, ".sbss2") == 0))
252b5132 9222 {
25f53a85 9223 info->callbacks->einfo
695344c0 9224 /* xgettext:c-format */
8de848d8 9225 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9226 "in the wrong output section (%s)\n"),
d003868e 9227 input_bfd,
55fd94b0
AM
9228 sym_name,
9229 howto->name,
9230 name);
252b5132 9231 }
252b5132
RH
9232 }
9233 break;
9234
b9c361e0 9235 case R_PPC_VLE_LO16A:
86c95733 9236 relocation = relocation + addend;
08dc996f
AM
9237 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9238 contents + rel->r_offset, relocation,
9239 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9240 goto copy_reloc;
b9c361e0
JL
9241
9242 case R_PPC_VLE_LO16D:
86c95733 9243 relocation = relocation + addend;
08dc996f
AM
9244 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9245 contents + rel->r_offset, relocation,
9246 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9247 goto copy_reloc;
b9c361e0
JL
9248
9249 case R_PPC_VLE_HI16A:
86c95733 9250 relocation = (relocation + addend) >> 16;
08dc996f
AM
9251 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9252 contents + rel->r_offset, relocation,
9253 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9254 goto copy_reloc;
b9c361e0
JL
9255
9256 case R_PPC_VLE_HI16D:
86c95733 9257 relocation = (relocation + addend) >> 16;
08dc996f
AM
9258 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9259 contents + rel->r_offset, relocation,
9260 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9261 goto copy_reloc;
b9c361e0
JL
9262
9263 case R_PPC_VLE_HA16A:
86c95733 9264 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9265 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9266 contents + rel->r_offset, relocation,
9267 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9268 goto copy_reloc;
b9c361e0
JL
9269
9270 case R_PPC_VLE_HA16D:
86c95733 9271 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9272 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9273 contents + rel->r_offset, relocation,
9274 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9275 goto copy_reloc;
b9c361e0 9276
70bccea4 9277 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9278 case R_PPC_EMB_SDA21:
b9c361e0 9279 case R_PPC_VLE_SDA21:
7619e7c7 9280 case R_PPC_EMB_RELSDA:
b9c361e0 9281 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9282 {
9283 const char *name;
9284 int reg;
86c95733 9285 unsigned int insn;
bd6c6e2b 9286 struct elf_link_hash_entry *sda = NULL;
252b5132 9287
3b4f3a11
AM
9288 if (sec == NULL || sec->output_section == NULL)
9289 {
9290 unresolved_reloc = TRUE;
9291 break;
9292 }
9293
a0f49396 9294 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9295 if (strcmp (name, ".sdata") == 0
9296 || strcmp (name, ".sbss") == 0)
252b5132
RH
9297 {
9298 reg = 13;
bd6c6e2b 9299 sda = htab->sdata[0].sym;
252b5132 9300 }
93d1b056
AM
9301 else if (strcmp (name, ".sdata2") == 0
9302 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9303 {
9304 reg = 2;
bd6c6e2b 9305 sda = htab->sdata[1].sym;
252b5132 9306 }
8da6118f
KH
9307 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9308 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9309 {
9310 reg = 0;
9311 }
252b5132
RH
9312 else
9313 {
25f53a85 9314 info->callbacks->einfo
695344c0 9315 /* xgettext:c-format */
8de848d8 9316 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9317 "in the wrong output section (%s)\n"),
d003868e 9318 input_bfd,
55fd94b0
AM
9319 sym_name,
9320 howto->name,
9321 name);
252b5132
RH
9322
9323 bfd_set_error (bfd_error_bad_value);
b34976b6 9324 ret = FALSE;
c316a17c 9325 goto copy_reloc;
252b5132
RH
9326 }
9327
bd6c6e2b
AM
9328 if (sda != NULL)
9329 {
9330 if (!is_static_defined (sda))
9331 {
9332 unresolved_reloc = TRUE;
9333 break;
9334 }
9335 addend -= SYM_VAL (sda);
9336 }
9337
95f0d0d2 9338 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9339 if (reg == 0
9340 && (r_type == R_PPC_VLE_SDA21
9341 || r_type == R_PPC_VLE_SDA21_LO))
9342 {
86c95733
AM
9343 relocation = relocation + addend;
9344 addend = 0;
9345
9346 /* Force e_li insn, keeping RT from original insn. */
9347 insn &= 0x1f << 21;
9348 insn |= 28u << 26;
9349
9350 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9351 /* Top 4 bits of value to 17..20. */
9352 insn |= (relocation & 0xf0000) >> 5;
9353 /* Next 5 bits of the value to 11..15. */
9354 insn |= (relocation & 0xf800) << 5;
9355 /* And the final 11 bits of the value to bits 21 to 31. */
9356 insn |= relocation & 0x7ff;
9357
95f0d0d2 9358 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9359
9360 if (r_type == R_PPC_VLE_SDA21
9361 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9362 goto overflow;
c316a17c 9363 goto copy_reloc;
b9c361e0
JL
9364 }
9365 else if (r_type == R_PPC_EMB_SDA21
9366 || r_type == R_PPC_VLE_SDA21
9367 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9368 {
86c95733 9369 /* Fill in register field. */
252b5132 9370 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9371 }
95f0d0d2 9372 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9373 }
9374 break;
9375
b9c361e0
JL
9376 case R_PPC_VLE_SDAREL_LO16A:
9377 case R_PPC_VLE_SDAREL_LO16D:
9378 case R_PPC_VLE_SDAREL_HI16A:
9379 case R_PPC_VLE_SDAREL_HI16D:
9380 case R_PPC_VLE_SDAREL_HA16A:
9381 case R_PPC_VLE_SDAREL_HA16D:
9382 {
9383 bfd_vma value;
9384 const char *name;
9385 //int reg;
9386 struct elf_link_hash_entry *sda = NULL;
9387
9388 if (sec == NULL || sec->output_section == NULL)
9389 {
9390 unresolved_reloc = TRUE;
9391 break;
9392 }
9393
a0f49396 9394 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9395 if (strcmp (name, ".sdata") == 0
9396 || strcmp (name, ".sbss") == 0)
b9c361e0
JL
9397 {
9398 //reg = 13;
9399 sda = htab->sdata[0].sym;
9400 }
93d1b056
AM
9401 else if (strcmp (name, ".sdata2") == 0
9402 || strcmp (name, ".sbss2") == 0)
b9c361e0
JL
9403 {
9404 //reg = 2;
9405 sda = htab->sdata[1].sym;
9406 }
9407 else
9408 {
4eca0228 9409 _bfd_error_handler
695344c0 9410 /* xgettext:c-format */
b9c361e0
JL
9411 (_("%B: the target (%s) of a %s relocation is "
9412 "in the wrong output section (%s)"),
9413 input_bfd,
9414 sym_name,
9415 howto->name,
9416 name);
9417
9418 bfd_set_error (bfd_error_bad_value);
9419 ret = FALSE;
c316a17c 9420 goto copy_reloc;
b9c361e0
JL
9421 }
9422
9423 if (sda != NULL)
9424 {
9425 if (!is_static_defined (sda))
9426 {
9427 unresolved_reloc = TRUE;
9428 break;
9429 }
9430 }
9431
86c95733
AM
9432 value = (sda->root.u.def.section->output_section->vma
9433 + sda->root.u.def.section->output_offset
9434 + addend);
9435
9436 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9437 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9438 contents + rel->r_offset, value,
9439 split16a_type,
9440 htab->params->vle_reloc_fixup);
86c95733 9441 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9442 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9443 contents + rel->r_offset, value,
9444 split16d_type,
9445 htab->params->vle_reloc_fixup);
86c95733 9446 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9447 {
86c95733 9448 value = value >> 16;
08dc996f
AM
9449 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9450 contents + rel->r_offset, value,
9451 split16a_type,
9452 htab->params->vle_reloc_fixup);
b9c361e0 9453 }
86c95733 9454 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9455 {
86c95733 9456 value = value >> 16;
08dc996f
AM
9457 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9458 contents + rel->r_offset, value,
9459 split16d_type,
9460 htab->params->vle_reloc_fixup);
b9c361e0 9461 }
86c95733 9462 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9463 {
86c95733 9464 value = (value + 0x8000) >> 16;
08dc996f
AM
9465 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9466 contents + rel->r_offset, value,
9467 split16a_type,
9468 htab->params->vle_reloc_fixup);
b9c361e0 9469 }
86c95733 9470 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9471 {
86c95733 9472 value = (value + 0x8000) >> 16;
08dc996f
AM
9473 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9474 contents + rel->r_offset, value,
9475 split16d_type,
9476 htab->params->vle_reloc_fixup);
b9c361e0
JL
9477 }
9478 }
c316a17c 9479 goto copy_reloc;
b9c361e0 9480
70bccea4 9481 /* Relocate against the beginning of the section. */
7619e7c7
AM
9482 case R_PPC_SECTOFF:
9483 case R_PPC_SECTOFF_LO:
9484 case R_PPC_SECTOFF_HI:
9485 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9486 if (sec == NULL || sec->output_section == NULL)
9487 {
9488 unresolved_reloc = TRUE;
9489 break;
9490 }
252b5132 9491 addend -= sec->output_section->vma;
252b5132
RH
9492 break;
9493
70bccea4 9494 /* Negative relocations. */
7619e7c7
AM
9495 case R_PPC_EMB_NADDR32:
9496 case R_PPC_EMB_NADDR16:
9497 case R_PPC_EMB_NADDR16_LO:
9498 case R_PPC_EMB_NADDR16_HI:
9499 case R_PPC_EMB_NADDR16_HA:
8da6118f 9500 addend -= 2 * relocation;
252b5132
RH
9501 break;
9502
7619e7c7
AM
9503 case R_PPC_COPY:
9504 case R_PPC_GLOB_DAT:
9505 case R_PPC_JMP_SLOT:
9506 case R_PPC_RELATIVE:
e054468f 9507 case R_PPC_IRELATIVE:
7619e7c7
AM
9508 case R_PPC_PLT32:
9509 case R_PPC_PLTREL32:
9510 case R_PPC_PLT16_LO:
9511 case R_PPC_PLT16_HI:
9512 case R_PPC_PLT16_HA:
9513 case R_PPC_ADDR30:
9514 case R_PPC_EMB_RELSEC16:
9515 case R_PPC_EMB_RELST_LO:
9516 case R_PPC_EMB_RELST_HI:
9517 case R_PPC_EMB_RELST_HA:
9518 case R_PPC_EMB_BIT_FLD:
25f53a85 9519 info->callbacks->einfo
695344c0 9520 /* xgettext:c-format */
8de848d8 9521 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9522 input_bfd,
7619e7c7
AM
9523 howto->name,
9524 sym_name);
252b5132
RH
9525
9526 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9527 ret = FALSE;
c316a17c 9528 goto copy_reloc;
7619e7c7 9529 }
252b5132 9530
7619e7c7
AM
9531 /* Do any further special processing. */
9532 switch (r_type)
9533 {
9534 default:
9535 break;
9536
9537 case R_PPC_ADDR16_HA:
d7128ce4 9538 case R_PPC_REL16_HA:
a680de9a 9539 case R_PPC_REL16DX_HA:
7619e7c7
AM
9540 case R_PPC_SECTOFF_HA:
9541 case R_PPC_TPREL16_HA:
9542 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9543 case R_PPC_EMB_NADDR16_HA:
9544 case R_PPC_EMB_RELST_HA:
9545 /* It's just possible that this symbol is a weak symbol
7b609f53 9546 that's not actually defined anywhere. In that case,
7619e7c7
AM
9547 'sec' would be NULL, and we should leave the symbol
9548 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9549 if (sec == NULL)
9550 break;
1a0670f3 9551 /* Fall through. */
5c5f6e17
AM
9552
9553 case R_PPC_PLT16_HA:
9554 case R_PPC_GOT16_HA:
9555 case R_PPC_GOT_TLSGD16_HA:
9556 case R_PPC_GOT_TLSLD16_HA:
9557 case R_PPC_GOT_TPREL16_HA:
9558 case R_PPC_GOT_DTPREL16_HA:
9559 /* Add 0x10000 if sign bit in 0:15 is set.
9560 Bits 0:15 are not used. */
9561 addend += 0x8000;
7619e7c7 9562 break;
1fe532cf
AM
9563
9564 case R_PPC_ADDR16:
9565 case R_PPC_ADDR16_LO:
9566 case R_PPC_GOT16:
9567 case R_PPC_GOT16_LO:
9568 case R_PPC_SDAREL16:
9569 case R_PPC_SECTOFF:
9570 case R_PPC_SECTOFF_LO:
9571 case R_PPC_DTPREL16:
9572 case R_PPC_DTPREL16_LO:
9573 case R_PPC_TPREL16:
9574 case R_PPC_TPREL16_LO:
9575 case R_PPC_GOT_TLSGD16:
9576 case R_PPC_GOT_TLSGD16_LO:
9577 case R_PPC_GOT_TLSLD16:
9578 case R_PPC_GOT_TLSLD16_LO:
9579 case R_PPC_GOT_DTPREL16:
9580 case R_PPC_GOT_DTPREL16_LO:
9581 case R_PPC_GOT_TPREL16:
9582 case R_PPC_GOT_TPREL16_LO:
9583 {
9584 /* The 32-bit ABI lacks proper relocations to deal with
9585 certain 64-bit instructions. Prevent damage to bits
9586 that make up part of the insn opcode. */
9587 unsigned int insn, mask, lobit;
9588
95f0d0d2 9589 insn = bfd_get_32 (input_bfd,
c316a17c 9590 contents + rel->r_offset - d_offset);
1fe532cf
AM
9591 mask = 0;
9592 if (is_insn_ds_form (insn))
9593 mask = 3;
9594 else if (is_insn_dq_form (insn))
9595 mask = 15;
9596 else
9597 break;
a680de9a
PB
9598 relocation += addend;
9599 addend = insn & mask;
9600 lobit = mask & relocation;
1fe532cf
AM
9601 if (lobit != 0)
9602 {
a680de9a 9603 relocation ^= lobit;
1fe532cf 9604 info->callbacks->einfo
695344c0 9605 /* xgettext:c-format */
1fe532cf
AM
9606 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
9607 input_bfd, input_section, rel->r_offset,
9608 howto->name, sym_name, mask + 1);
9609 bfd_set_error (bfd_error_bad_value);
9610 ret = FALSE;
9611 }
1fe532cf
AM
9612 }
9613 break;
252b5132
RH
9614 }
9615
252b5132 9616#ifdef DEBUG
55fd94b0
AM
9617 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9618 "offset = %ld, addend = %ld\n",
252b5132 9619 howto->name,
8da6118f 9620 (int) r_type,
252b5132
RH
9621 sym_name,
9622 r_symndx,
7619e7c7 9623 (long) rel->r_offset,
8da6118f 9624 (long) addend);
252b5132
RH
9625#endif
9626
7619e7c7
AM
9627 if (unresolved_reloc
9628 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9629 && h->def_dynamic)
9630 && _bfd_elf_section_offset (output_bfd, info, input_section,
9631 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9632 {
25f53a85 9633 info->callbacks->einfo
695344c0 9634 /* xgettext:c-format */
8de848d8 9635 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9636 input_bfd, input_section, rel->r_offset,
7b609f53 9637 howto->name,
7619e7c7
AM
9638 sym_name);
9639 ret = FALSE;
9640 }
9641
86c95733
AM
9642 /* 16-bit fields in insns mostly have signed values, but a
9643 few insns have 16-bit unsigned values. Really, we should
9644 have different reloc types. */
9645 if (howto->complain_on_overflow != complain_overflow_dont
9646 && howto->dst_mask == 0xffff
9647 && (input_section->flags & SEC_CODE) != 0)
9648 {
9649 enum complain_overflow complain = complain_overflow_signed;
9650
9651 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9652 {
9653 unsigned int insn;
9654
9655 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9656 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9657 complain = complain_overflow_bitfield;
9658 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9659 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9660 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9661 complain = complain_overflow_unsigned;
9662 }
9663 if (howto->complain_on_overflow != complain)
9664 {
9665 alt_howto = *howto;
9666 alt_howto.complain_on_overflow = complain;
9667 howto = &alt_howto;
9668 }
9669 }
9670
a680de9a
PB
9671 if (r_type == R_PPC_REL16DX_HA)
9672 {
9673 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9674 if (rel->r_offset + 4 > input_section->size)
9675 r = bfd_reloc_outofrange;
9676 else
9677 {
9678 unsigned int insn;
9679
9680 relocation += addend;
9681 relocation -= (rel->r_offset
9682 + input_section->output_offset
9683 + input_section->output_section->vma);
9684 relocation >>= 16;
9685 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9686 insn &= ~0x1fffc1;
9687 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9688 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9689 r = bfd_reloc_ok;
9690 }
9691 }
9692 else
9693 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9694 rel->r_offset, relocation, addend);
252b5132 9695
7619e7c7 9696 if (r != bfd_reloc_ok)
252b5132 9697 {
7619e7c7 9698 if (r == bfd_reloc_overflow)
252b5132 9699 {
c3301df1 9700 overflow:
8131c122
AM
9701 /* On code like "if (foo) foo();" don't report overflow
9702 on a branch to zero when foo is undefined. */
9703 if (!warned
9704 && !(h != NULL
9705 && (h->root.type == bfd_link_hash_undefweak
9706 || h->root.type == bfd_link_hash_undefined)
9707 && is_branch_reloc (r_type)))
1a72702b
AM
9708 info->callbacks->reloc_overflow
9709 (info, (h ? &h->root : NULL), sym_name, howto->name,
9710 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9711 }
9712 else
9713 {
25f53a85 9714 info->callbacks->einfo
695344c0 9715 /* xgettext:c-format */
8de848d8 9716 (_("%P: %H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9717 input_bfd, input_section, rel->r_offset,
9718 howto->name, sym_name, (int) r);
7619e7c7 9719 ret = FALSE;
252b5132
RH
9720 }
9721 }
c316a17c
AM
9722 copy_reloc:
9723 if (wrel != rel)
9724 *wrel = *rel;
9725 }
9726
9727 if (wrel != rel)
9728 {
9729 Elf_Internal_Shdr *rel_hdr;
9730 size_t deleted = rel - wrel;
9731
9732 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9733 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9734 if (rel_hdr->sh_size == 0)
9735 {
9736 /* It is too late to remove an empty reloc section. Leave
9737 one NONE reloc.
9738 ??? What is wrong with an empty section??? */
9739 rel_hdr->sh_size = rel_hdr->sh_entsize;
9740 deleted -= 1;
9741 wrel++;
9742 }
9743 relend = wrel;
9744 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9745 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9746 input_section->reloc_count -= deleted;
252b5132
RH
9747 }
9748
252b5132
RH
9749#ifdef DEBUG
9750 fprintf (stderr, "\n");
9751#endif
9752
53291d1f
AM
9753 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9754 && input_section->size != input_section->rawsize
9755 && (strcmp (input_section->output_section->name, ".init") == 0
9756 || strcmp (input_section->output_section->name, ".fini") == 0))
9757 {
9758 /* Branch around the trampolines. */
9759 unsigned int insn = B + input_section->size - input_section->rawsize;
9760 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9761 }
9762
5446cbdf 9763 if (htab->params->ppc476_workaround
795bc6b3 9764 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9765 && (!bfd_link_relocatable (info)
795bc6b3
AM
9766 || (input_section->output_section->alignment_power
9767 >= htab->params->pagesize_p2)))
5446cbdf 9768 {
5446cbdf 9769 bfd_vma start_addr, end_addr, addr;
795bc6b3 9770 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9771
5446cbdf 9772 if (relax_info->workaround_size != 0)
40fd06d1
AM
9773 {
9774 bfd_byte *p;
9775 unsigned int n;
9776 bfd_byte fill[4];
9777
9778 bfd_put_32 (input_bfd, BA, fill);
9779 p = contents + input_section->size - relax_info->workaround_size;
9780 n = relax_info->workaround_size >> 2;
9781 while (n--)
9782 {
9783 memcpy (p, fill, 4);
9784 p += 4;
9785 }
9786 }
5446cbdf
AM
9787
9788 /* The idea is: Replace the last instruction on a page with a
9789 branch to a patch area. Put the insn there followed by a
9790 branch back to the next page. Complicated a little by
9791 needing to handle moved conditional branches, and by not
9792 wanting to touch data-in-text. */
9793
9794 start_addr = (input_section->output_section->vma
9795 + input_section->output_offset);
9796 end_addr = (start_addr + input_section->size
9797 - relax_info->workaround_size);
9798 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9799 addr < end_addr;
9800 addr += pagesize)
9801 {
9802 bfd_vma offset = addr - start_addr;
9803 Elf_Internal_Rela *lo, *hi;
9804 bfd_boolean is_data;
9805 bfd_vma patch_off, patch_addr;
9806 unsigned int insn;
9807
9808 /* Do we have a data reloc at this offset? If so, leave
9809 the word alone. */
9810 is_data = FALSE;
9811 lo = relocs;
668e22e5
AM
9812 hi = relend;
9813 rel = NULL;
5446cbdf
AM
9814 while (lo < hi)
9815 {
9816 rel = lo + (hi - lo) / 2;
9817 if (rel->r_offset < offset)
9818 lo = rel + 1;
668e22e5 9819 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9820 hi = rel;
9821 else
9822 {
9823 switch (ELF32_R_TYPE (rel->r_info))
9824 {
9825 case R_PPC_ADDR32:
9826 case R_PPC_UADDR32:
9827 case R_PPC_REL32:
9828 case R_PPC_ADDR30:
9829 is_data = TRUE;
9830 break;
9831 default:
9832 break;
9833 }
9834 break;
9835 }
9836 }
9837 if (is_data)
9838 continue;
9839
b4ab4364
AM
9840 /* Some instructions can be left alone too. Unconditional
9841 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9842 avoid the icache failure.
9843
9844 The problem occurs due to prefetch across a page boundary
9845 where stale instructions can be fetched from the next
9846 page, and the mechanism for flushing these bad
9847 instructions fails under certain circumstances. The
9848 unconditional branches:
9849 1) Branch: b, bl, ba, bla,
9850 2) Branch Conditional: bc, bca, bcl, bcla,
9851 3) Branch Conditional to Link Register: bclr, bclrl,
9852 where (2) and (3) have BO=0x14 making them unconditional,
9853 prevent the bad prefetch because the prefetch itself is
9854 affected by these instructions. This happens even if the
9855 instruction is not executed.
9856
9857 A bctr example:
9858 .
9859 . lis 9,new_page@ha
9860 . addi 9,9,new_page@l
9861 . mtctr 9
9862 . bctr
9863 . nop
9864 . nop
9865 . new_page:
9866 .
9867 The bctr is not predicted taken due to ctr not being
9868 ready, so prefetch continues on past the bctr into the
9869 new page which might have stale instructions. If they
9870 fail to be flushed, then they will be executed after the
9871 bctr executes. Either of the following modifications
9872 prevent the bad prefetch from happening in the first
9873 place:
9874 .
1b786873
L
9875 . lis 9,new_page@ha lis 9,new_page@ha
9876 . addi 9,9,new_page@l addi 9,9,new_page@l
9877 . mtctr 9 mtctr 9
9878 . bctr bctr
b4ab4364 9879 . nop b somewhere_else
1b786873
L
9880 . b somewhere_else nop
9881 . new_page: new_page:
b4ab4364 9882 . */
5446cbdf 9883 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9884 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9885 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9886 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9887 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9888 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9889 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9890 continue;
9891
9892 patch_addr = (start_addr + input_section->size
9893 - relax_info->workaround_size);
9894 patch_addr = (patch_addr + 15) & -16;
9895 patch_off = patch_addr - start_addr;
9896 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9897
9898 if (rel != NULL
9899 && rel->r_offset >= offset
9900 && rel->r_offset < offset + 4)
9901 {
f8b44781
AM
9902 asection *sreloc;
9903
668e22e5
AM
9904 /* If the insn we are patching had a reloc, adjust the
9905 reloc r_offset so that the reloc applies to the moved
9906 location. This matters for -r and --emit-relocs. */
9907 if (rel + 1 != relend)
9908 {
9909 Elf_Internal_Rela tmp = *rel;
9910
9911 /* Keep the relocs sorted by r_offset. */
9912 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9913 relend[-1] = tmp;
9914 }
9915 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9916
9917 /* Adjust REL16 addends too. */
9918 switch (ELF32_R_TYPE (relend[-1].r_info))
9919 {
9920 case R_PPC_REL16:
9921 case R_PPC_REL16_LO:
9922 case R_PPC_REL16_HI:
9923 case R_PPC_REL16_HA:
9924 relend[-1].r_addend += patch_off - offset;
9925 break;
9926 default:
9927 break;
9928 }
9929
9930 /* If we are building a PIE or shared library with
9931 non-PIC objects, perhaps we had a dynamic reloc too?
9932 If so, the dynamic reloc must move with the insn. */
9933 sreloc = elf_section_data (input_section)->sreloc;
9934 if (sreloc != NULL)
9935 {
1d5c94cb 9936 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9937 bfd_vma soffset;
9938
1d5c94cb
AM
9939 slo = (Elf32_External_Rela *) sreloc->contents;
9940 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9941 soffset = (offset + input_section->output_section->vma
9942 + input_section->output_offset);
9943 while (slo < shi)
9944 {
1d5c94cb
AM
9945 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9946 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9947 &outrel);
f8b44781
AM
9948 if (outrel.r_offset < soffset)
9949 slo = srel + 1;
9950 else if (outrel.r_offset > soffset + 3)
9951 shi = srel;
9952 else
9953 {
1d5c94cb 9954 if (srel + 1 != srelend)
f8b44781 9955 {
1d5c94cb
AM
9956 memmove (srel, srel + 1,
9957 (srelend - (srel + 1)) * sizeof (*srel));
9958 srel = srelend - 1;
f8b44781
AM
9959 }
9960 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9961 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9962 (bfd_byte *) srel);
f8b44781
AM
9963 break;
9964 }
9965 }
9966 }
668e22e5
AM
9967 }
9968 else
9969 rel = NULL;
9970
5446cbdf
AM
9971 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9972 && (insn & 2) == 0 /* relative */)
9973 {
9974 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9975
9976 delta += offset - patch_off;
0e1862bb 9977 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 9978 delta = 0;
0e1862bb 9979 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
9980 {
9981 enum elf_ppc_reloc_type r_type;
9982
9983 r_type = ELF32_R_TYPE (relend[-1].r_info);
9984 if (r_type == R_PPC_REL14_BRTAKEN)
9985 insn |= BRANCH_PREDICT_BIT;
9986 else if (r_type == R_PPC_REL14_BRNTAKEN)
9987 insn &= ~BRANCH_PREDICT_BIT;
9988 else
9989 BFD_ASSERT (r_type == R_PPC_REL14);
9990
9991 if ((r_type == R_PPC_REL14_BRTAKEN
9992 || r_type == R_PPC_REL14_BRNTAKEN)
9993 && delta + 0x8000 < 0x10000
9994 && (bfd_signed_vma) delta < 0)
9995 insn ^= BRANCH_PREDICT_BIT;
9996 }
5446cbdf
AM
9997 if (delta + 0x8000 < 0x10000)
9998 {
9999 bfd_put_32 (input_bfd,
10000 (insn & ~0xfffc) | (delta & 0xfffc),
10001 contents + patch_off);
10002 patch_off += 4;
10003 bfd_put_32 (input_bfd,
10004 B | ((offset + 4 - patch_off) & 0x3fffffc),
10005 contents + patch_off);
10006 patch_off += 4;
10007 }
10008 else
10009 {
668e22e5
AM
10010 if (rel != NULL)
10011 {
10012 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
10013
10014 relend[-1].r_offset += 8;
10015 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
10016 }
5446cbdf
AM
10017 bfd_put_32 (input_bfd,
10018 (insn & ~0xfffc) | 8,
10019 contents + patch_off);
10020 patch_off += 4;
10021 bfd_put_32 (input_bfd,
10022 B | ((offset + 4 - patch_off) & 0x3fffffc),
10023 contents + patch_off);
10024 patch_off += 4;
10025 bfd_put_32 (input_bfd,
10026 B | ((delta - 8) & 0x3fffffc),
10027 contents + patch_off);
10028 patch_off += 4;
10029 }
10030 }
10031 else
10032 {
10033 bfd_put_32 (input_bfd, insn, contents + patch_off);
10034 patch_off += 4;
10035 bfd_put_32 (input_bfd,
10036 B | ((offset + 4 - patch_off) & 0x3fffffc),
10037 contents + patch_off);
10038 patch_off += 4;
10039 }
10040 BFD_ASSERT (patch_off <= input_section->size);
10041 relax_info->workaround_size = input_section->size - patch_off;
10042 }
10043 }
10044
252b5132
RH
10045 return ret;
10046}
252b5132 10047\f
25dbc73a
AM
10048/* Finish up dynamic symbol handling. We set the contents of various
10049 dynamic sections here. */
c5fccbec 10050
b34976b6 10051static bfd_boolean
25dbc73a
AM
10052ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10053 struct bfd_link_info *info,
10054 struct elf_link_hash_entry *h,
10055 Elf_Internal_Sym *sym)
e1a9cb8e 10056{
25dbc73a 10057 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
10058 struct plt_entry *ent;
10059 bfd_boolean doneone;
e1a9cb8e 10060
25dbc73a
AM
10061#ifdef DEBUG
10062 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10063 h->root.root.string);
10064#endif
e1a9cb8e 10065
25dbc73a
AM
10066 htab = ppc_elf_hash_table (info);
10067 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 10068
a6aa5195
AM
10069 doneone = FALSE;
10070 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10071 if (ent->plt.offset != (bfd_vma) -1)
10072 {
10073 if (!doneone)
10074 {
10075 Elf_Internal_Rela rela;
10076 bfd_byte *loc;
10077 bfd_vma reloc_index;
e1a9cb8e 10078
e054468f 10079 if (htab->plt_type == PLT_NEW
25f23106
AM
10080 || !htab->elf.dynamic_sections_created
10081 || h->dynindx == -1)
9d8504b1
PB
10082 reloc_index = ent->plt.offset / 4;
10083 else
10084 {
10085 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10086 / htab->plt_slot_size);
10087 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 10088 && htab->plt_type == PLT_OLD)
9d8504b1
PB
10089 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10090 }
10091
a6aa5195
AM
10092 /* This symbol has an entry in the procedure linkage table.
10093 Set it up. */
e054468f 10094 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
10095 && htab->elf.dynamic_sections_created
10096 && h->dynindx != -1)
a6aa5195 10097 {
9d8504b1
PB
10098 bfd_vma got_offset;
10099 const bfd_vma *plt_entry;
5b914448 10100
9d8504b1
PB
10101 /* The first three entries in .got.plt are reserved. */
10102 got_offset = (reloc_index + 3) * 4;
10103
10104 /* Use the right PLT. */
0e1862bb 10105 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10106 : ppc_elf_vxworks_plt_entry;
10107
10108 /* Fill in the .plt on VxWorks. */
0e1862bb 10109 if (bfd_link_pic (info))
9d8504b1 10110 {
9d8504b1 10111 bfd_put_32 (output_bfd,
e87d4038 10112 plt_entry[0] | PPC_HA (got_offset),
ce558b89 10113 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10114 bfd_put_32 (output_bfd,
e87d4038 10115 plt_entry[1] | PPC_LO (got_offset),
ce558b89 10116 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10117 }
10118 else
10119 {
e87d4038 10120 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
10121
10122 bfd_put_32 (output_bfd,
e87d4038 10123 plt_entry[0] | PPC_HA (got_loc),
ce558b89 10124 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10125 bfd_put_32 (output_bfd,
e87d4038 10126 plt_entry[1] | PPC_LO (got_loc),
ce558b89 10127 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10128 }
10129
10130 bfd_put_32 (output_bfd, plt_entry[2],
ce558b89 10131 htab->elf.splt->contents + ent->plt.offset + 8);
9d8504b1 10132 bfd_put_32 (output_bfd, plt_entry[3],
ce558b89 10133 htab->elf.splt->contents + ent->plt.offset + 12);
9d8504b1
PB
10134
10135 /* This instruction is an immediate load. The value loaded is
10136 the byte offset of the R_PPC_JMP_SLOT relocation from the
10137 start of the .rela.plt section. The value is stored in the
10138 low-order 16 bits of the load instruction. */
10139 /* NOTE: It appears that this is now an index rather than a
10140 prescaled offset. */
5b914448 10141 bfd_put_32 (output_bfd,
9d8504b1 10142 plt_entry[4] | reloc_index,
ce558b89 10143 htab->elf.splt->contents + ent->plt.offset + 16);
9d8504b1
PB
10144 /* This instruction is a PC-relative branch whose target is
10145 the start of the PLT section. The address of this branch
10146 instruction is 20 bytes beyond the start of this PLT entry.
10147 The address is encoded in bits 6-29, inclusive. The value
10148 stored is right-shifted by two bits, permitting a 26-bit
10149 offset. */
5b914448
AM
10150 bfd_put_32 (output_bfd,
10151 (plt_entry[5]
9d8504b1 10152 | (-(ent->plt.offset + 20) & 0x03fffffc)),
ce558b89 10153 htab->elf.splt->contents + ent->plt.offset + 20);
9d8504b1 10154 bfd_put_32 (output_bfd, plt_entry[6],
ce558b89 10155 htab->elf.splt->contents + ent->plt.offset + 24);
9d8504b1 10156 bfd_put_32 (output_bfd, plt_entry[7],
ce558b89 10157 htab->elf.splt->contents + ent->plt.offset + 28);
9d8504b1
PB
10158
10159 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10160 the address immediately after the "bctr" instruction
9d8504b1 10161 in this PLT entry. */
ce558b89
AM
10162 bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
10163 + htab->elf.splt->output_offset
9d8504b1 10164 + ent->plt.offset + 16),
ce558b89 10165 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10166
0e1862bb 10167 if (!bfd_link_pic (info))
9d8504b1
PB
10168 {
10169 /* Fill in a couple of entries in .rela.plt.unloaded. */
10170 loc = htab->srelplt2->contents
10171 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10172 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10173 * sizeof (Elf32_External_Rela));
10174
10175 /* Provide the @ha relocation for the first instruction. */
ce558b89
AM
10176 rela.r_offset = (htab->elf.splt->output_section->vma
10177 + htab->elf.splt->output_offset
9d8504b1 10178 + ent->plt.offset + 2);
636ce3f5 10179 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10180 R_PPC_ADDR16_HA);
10181 rela.r_addend = got_offset;
10182 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10183 loc += sizeof (Elf32_External_Rela);
10184
10185 /* Provide the @l relocation for the second instruction. */
ce558b89
AM
10186 rela.r_offset = (htab->elf.splt->output_section->vma
10187 + htab->elf.splt->output_offset
9d8504b1 10188 + ent->plt.offset + 6);
636ce3f5 10189 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10190 R_PPC_ADDR16_LO);
10191 rela.r_addend = got_offset;
10192 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10193 loc += sizeof (Elf32_External_Rela);
10194
10195 /* Provide a relocation for the GOT entry corresponding to this
10196 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10197 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10198 + htab->elf.sgotplt->output_offset
9d8504b1 10199 + got_offset);
7325306f 10200 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10201 R_PPC_ADDR32);
10202 rela.r_addend = ent->plt.offset + 16;
10203 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10204 }
10205
10206 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10207 In particular, the offset for the relocation is not the
10208 address of the PLT entry for this function, as specified
10209 by the ABI. Instead, the offset is set to the address of
10210 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10211 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10212 + htab->elf.sgotplt->output_offset
9d8504b1
PB
10213 + got_offset);
10214
a6aa5195
AM
10215 }
10216 else
10217 {
ce558b89 10218 asection *splt = htab->elf.splt;
25f23106
AM
10219 if (!htab->elf.dynamic_sections_created
10220 || h->dynindx == -1)
ce558b89 10221 splt = htab->elf.iplt;
e054468f
AM
10222
10223 rela.r_offset = (splt->output_section->vma
10224 + splt->output_offset
9d8504b1 10225 + ent->plt.offset);
e054468f 10226 if (htab->plt_type == PLT_OLD
25f23106
AM
10227 || !htab->elf.dynamic_sections_created
10228 || h->dynindx == -1)
9d8504b1
PB
10229 {
10230 /* We don't need to fill in the .plt. The ppc dynamic
10231 linker will fill it in. */
10232 }
10233 else
10234 {
10235 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10236 + htab->glink->output_section->vma
10237 + htab->glink->output_offset);
10238 bfd_put_32 (output_bfd, val,
e054468f 10239 splt->contents + ent->plt.offset);
9d8504b1 10240 }
a6aa5195 10241 }
e1a9cb8e 10242
a6aa5195 10243 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10244 rela.r_addend = 0;
e054468f
AM
10245 if (!htab->elf.dynamic_sections_created
10246 || h->dynindx == -1)
10247 {
10248 BFD_ASSERT (h->type == STT_GNU_IFUNC
10249 && h->def_regular
10250 && (h->root.type == bfd_link_hash_defined
10251 || h->root.type == bfd_link_hash_defweak));
10252 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10253 rela.r_addend = SYM_VAL (h);
10254 }
10255 else
10256 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10257
25f23106
AM
10258 if (!htab->elf.dynamic_sections_created
10259 || h->dynindx == -1)
ce558b89
AM
10260 loc = (htab->elf.irelplt->contents
10261 + (htab->elf.irelplt->reloc_count++
25f23106 10262 * sizeof (Elf32_External_Rela)));
e054468f 10263 else
ce558b89 10264 loc = (htab->elf.srelplt->contents
25f23106 10265 + reloc_index * sizeof (Elf32_External_Rela));
a6aa5195 10266 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10267
a6aa5195
AM
10268 if (!h->def_regular)
10269 {
0eb4a168
AM
10270 /* Mark the symbol as undefined, rather than as
10271 defined in the .plt section. Leave the value if
10272 there were any relocations where pointer equality
10273 matters (this is a clue for the dynamic linker, to
10274 make function pointer comparisons work between an
10275 application and shared library), otherwise set it
10276 to zero. */
a6aa5195 10277 sym->st_shndx = SHN_UNDEF;
0eb4a168 10278 if (!h->pointer_equality_needed)
a6aa5195 10279 sym->st_value = 0;
0eb4a168
AM
10280 else if (!h->ref_regular_nonweak)
10281 {
625af618
AM
10282 /* This breaks function pointer comparisons, but
10283 that is better than breaking tests for a NULL
0eb4a168 10284 function pointer. */
0eb4a168
AM
10285 sym->st_value = 0;
10286 }
a6aa5195 10287 }
de972ffa 10288 else if (h->type == STT_GNU_IFUNC
0e1862bb 10289 && !bfd_link_pic (info))
de972ffa
AM
10290 {
10291 /* Set the value of ifunc symbols in a non-pie
10292 executable to the glink entry. This is to avoid
10293 text relocations. We can't do this for ifunc in
10294 allocate_dynrelocs, as we do for normal dynamic
10295 function symbols with plt entries, because we need
10296 to keep the original value around for the ifunc
10297 relocation. */
10298 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10299 (output_bfd, htab->glink->output_section));
5b914448
AM
10300 sym->st_value = (ent->glink_offset
10301 + htab->glink->output_offset
de972ffa
AM
10302 + htab->glink->output_section->vma);
10303 }
a6aa5195
AM
10304 doneone = TRUE;
10305 }
e1a9cb8e 10306
e054468f 10307 if (htab->plt_type == PLT_NEW
25f23106
AM
10308 || !htab->elf.dynamic_sections_created
10309 || h->dynindx == -1)
a6aa5195 10310 {
a7f2871e 10311 unsigned char *p;
ce558b89 10312 asection *splt = htab->elf.splt;
25f23106
AM
10313 if (!htab->elf.dynamic_sections_created
10314 || h->dynindx == -1)
ce558b89 10315 splt = htab->elf.iplt;
e1a9cb8e 10316
a7f2871e
AM
10317 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10318
5446cbdf 10319 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10320 {
10321 bfd_put_32 (output_bfd, LWZ_11_3, p);
10322 p += 4;
10323 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10324 p += 4;
10325 bfd_put_32 (output_bfd, MR_0_3, p);
10326 p += 4;
10327 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10328 p += 4;
10329 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10330 p += 4;
10331 bfd_put_32 (output_bfd, BEQLR, p);
10332 p += 4;
10333 bfd_put_32 (output_bfd, MR_3_0, p);
10334 p += 4;
10335 bfd_put_32 (output_bfd, NOP, p);
10336 p += 4;
10337 }
10338
10339 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10340
0e1862bb 10341 if (!bfd_link_pic (info))
e054468f
AM
10342 /* We only need one non-PIC glink stub. */
10343 break;
a6aa5195
AM
10344 }
10345 else
10346 break;
10347 }
e1a9cb8e 10348
25dbc73a
AM
10349 if (h->needs_copy)
10350 {
10351 asection *s;
10352 Elf_Internal_Rela rela;
10353 bfd_byte *loc;
e1a9cb8e 10354
25dbc73a 10355 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10356
25dbc73a
AM
10357#ifdef DEBUG
10358 fprintf (stderr, ", copy");
10359#endif
e1a9cb8e 10360
25dbc73a 10361 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10362
4dc4a9a5 10363 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10364 s = htab->relsbss;
5474d94f
AM
10365 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
10366 s = htab->elf.sreldynrelro;
25dbc73a 10367 else
9d19e4fd 10368 s = htab->elf.srelbss;
25dbc73a 10369 BFD_ASSERT (s != NULL);
e1a9cb8e 10370
e87d4038 10371 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10372 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10373 rela.r_addend = 0;
10374 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10375 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10376 }
e1a9cb8e 10377
25dbc73a
AM
10378#ifdef DEBUG
10379 fprintf (stderr, "\n");
10380#endif
e1a9cb8e 10381
25dbc73a
AM
10382 return TRUE;
10383}
10384\f
10385static enum elf_reloc_type_class
7e612e98
AM
10386ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10387 const asection *rel_sec,
10388 const Elf_Internal_Rela *rela)
e1a9cb8e 10389{
7e612e98
AM
10390 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10391
ce558b89 10392 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
10393 return reloc_class_ifunc;
10394
25dbc73a
AM
10395 switch (ELF32_R_TYPE (rela->r_info))
10396 {
10397 case R_PPC_RELATIVE:
10398 return reloc_class_relative;
25dbc73a
AM
10399 case R_PPC_JMP_SLOT:
10400 return reloc_class_plt;
10401 case R_PPC_COPY:
10402 return reloc_class_copy;
10403 default:
10404 return reloc_class_normal;
10405 }
e1a9cb8e 10406}
25dbc73a
AM
10407\f
10408/* Finish up the dynamic sections. */
e1a9cb8e 10409
25dbc73a
AM
10410static bfd_boolean
10411ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10412 struct bfd_link_info *info)
e1a9cb8e 10413{
25dbc73a 10414 asection *sdyn;
9d8504b1 10415 asection *splt;
25dbc73a 10416 struct ppc_elf_link_hash_table *htab;
1fe44d79 10417 bfd_vma got;
e87d4038
AM
10418 bfd *dynobj;
10419 bfd_boolean ret = TRUE;
e1a9cb8e 10420
25dbc73a
AM
10421#ifdef DEBUG
10422 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10423#endif
6b0817e5 10424
25dbc73a 10425 htab = ppc_elf_hash_table (info);
ce558b89 10426 dynobj = htab->elf.dynobj;
3d4d4302 10427 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9d8504b1 10428 if (htab->is_vxworks)
ce558b89 10429 splt = htab->elf.splt;
9d8504b1
PB
10430 else
10431 splt = NULL;
e1a9cb8e 10432
1fe44d79
AM
10433 got = 0;
10434 if (htab->elf.hgot != NULL)
e87d4038 10435 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10436
25dbc73a 10437 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10438 {
25dbc73a 10439 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10440
ce558b89 10441 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 10442
25dbc73a
AM
10443 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10444 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10445 for (; dyncon < dynconend; dyncon++)
10446 {
10447 Elf_Internal_Dyn dyn;
10448 asection *s;
e1a9cb8e 10449
9d8504b1 10450 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10451
25dbc73a
AM
10452 switch (dyn.d_tag)
10453 {
10454 case DT_PLTGOT:
9d8504b1 10455 if (htab->is_vxworks)
ce558b89 10456 s = htab->elf.sgotplt;
9d8504b1 10457 else
ce558b89 10458 s = htab->elf.splt;
25dbc73a
AM
10459 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10460 break;
86bbe32f 10461
25dbc73a 10462 case DT_PLTRELSZ:
ce558b89 10463 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 10464 break;
e1a9cb8e 10465
25dbc73a 10466 case DT_JMPREL:
ce558b89 10467 s = htab->elf.srelplt;
25dbc73a
AM
10468 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10469 break;
2f89ff8d 10470
1fe44d79
AM
10471 case DT_PPC_GOT:
10472 dyn.d_un.d_ptr = got;
d7128ce4
AM
10473 break;
10474
25dbc73a 10475 default:
7a2b07ff
NS
10476 if (htab->is_vxworks
10477 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10478 break;
25dbc73a
AM
10479 continue;
10480 }
4c45e5c9 10481
25dbc73a
AM
10482 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10483 }
10484 }
4c45e5c9 10485
ce558b89 10486 if (htab->elf.sgot != NULL)
25dbc73a 10487 {
ce558b89
AM
10488 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10489 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 10490 {
e79f5955 10491 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10492
e87d4038
AM
10493 p += htab->elf.hgot->root.u.def.value;
10494 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10495 {
10496 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10497 so that a function can easily find the address of
10498 _GLOBAL_OFFSET_TABLE_. */
10499 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10500 < htab->elf.hgot->root.u.def.section->size);
10501 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10502 }
3b36f7e6 10503
e87d4038 10504 if (sdyn != NULL)
e79f5955
AM
10505 {
10506 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10507 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10508 < htab->elf.hgot->root.u.def.section->size);
10509 bfd_put_32 (output_bfd, val, p);
10510 }
e87d4038
AM
10511 }
10512 else
10513 {
695344c0 10514 /* xgettext:c-format */
8de848d8 10515 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85 10516 htab->elf.hgot->root.root.string,
ce558b89
AM
10517 (htab->elf.sgotplt != NULL
10518 ? htab->elf.sgotplt->name
10519 : htab->elf.sgot->name));
e87d4038
AM
10520 bfd_set_error (bfd_error_bad_value);
10521 ret = FALSE;
10522 }
25dbc73a 10523
ce558b89 10524 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
10525 }
10526
9d8504b1
PB
10527 /* Fill in the first entry in the VxWorks procedure linkage table. */
10528 if (splt && splt->size > 0)
10529 {
10530 /* Use the right PLT. */
0e1862bb 10531 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10532 ? ppc_elf_vxworks_pic_plt0_entry
10533 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10534
0e1862bb 10535 if (!bfd_link_pic (info))
9d8504b1 10536 {
e87d4038 10537 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10538
e87d4038 10539 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10540 splt->contents + 0);
e87d4038 10541 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10542 splt->contents + 4);
10543 }
10544 else
10545 {
10546 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10547 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10548 }
10549 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10550 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10551 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10552 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10553 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10554 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10555
0e1862bb 10556 if (! bfd_link_pic (info))
9d8504b1
PB
10557 {
10558 Elf_Internal_Rela rela;
10559 bfd_byte *loc;
10560
10561 loc = htab->srelplt2->contents;
10562
10563 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
10564 rela.r_offset = (htab->elf.splt->output_section->vma
10565 + htab->elf.splt->output_offset
9d8504b1 10566 + 2);
636ce3f5 10567 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10568 rela.r_addend = 0;
10569 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10570 loc += sizeof (Elf32_External_Rela);
5b914448 10571
9d8504b1 10572 /* Output the @l relocation for the second instruction. */
ce558b89
AM
10573 rela.r_offset = (htab->elf.splt->output_section->vma
10574 + htab->elf.splt->output_offset
9d8504b1 10575 + 6);
636ce3f5 10576 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10577 rela.r_addend = 0;
10578 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10579 loc += sizeof (Elf32_External_Rela);
10580
10581 /* Fix up the remaining relocations. They may have the wrong
10582 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10583 in which symbols were output. */
10584 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10585 {
10586 Elf_Internal_Rela rel;
10587
10588 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10589 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10590 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10591 loc += sizeof (Elf32_External_Rela);
10592
10593 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10594 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10595 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10596 loc += sizeof (Elf32_External_Rela);
10597
10598 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10599 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10600 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10601 loc += sizeof (Elf32_External_Rela);
10602 }
10603 }
10604 }
10605
e054468f
AM
10606 if (htab->glink != NULL
10607 && htab->glink->contents != NULL
10608 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10609 {
10610 unsigned char *p;
10611 unsigned char *endp;
a6aa5195 10612 bfd_vma res0;
d7128ce4 10613 unsigned int i;
a6aa5195
AM
10614
10615 /*
10616 * PIC glink code is the following:
10617 *
10618 * # ith PLT code stub.
10619 * addis 11,30,(plt+(i-1)*4-got)@ha
10620 * lwz 11,(plt+(i-1)*4-got)@l(11)
10621 * mtctr 11
10622 * bctr
10623 *
10624 * # A table of branches, one for each plt entry.
176a0d42 10625 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10626 * # addresses, so (r11 - res_0) gives the plt index * 4.
10627 * res_0: b PLTresolve
10628 * res_1: b PLTresolve
10629 * .
10630 * # Some number of entries towards the end can be nops
10631 * res_n_m3: nop
10632 * res_n_m2: nop
10633 * res_n_m1:
10634 *
10635 * PLTresolve:
10636 * addis 11,11,(1f-res_0)@ha
10637 * mflr 0
10638 * bcl 20,31,1f
10639 * 1: addi 11,11,(1b-res_0)@l
10640 * mflr 12
10641 * mtlr 0
10642 * sub 11,11,12 # r11 = index * 4
10643 * addis 12,12,(got+4-1b)@ha
10644 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10645 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10646 * mtctr 0
10647 * add 0,11,11
10648 * add 11,0,11 # r11 = index * 12 = reloc offset.
10649 * bctr
10650 */
10651 static const unsigned int pic_plt_resolve[] =
10652 {
10653 ADDIS_11_11,
10654 MFLR_0,
10655 BCL_20_31,
10656 ADDI_11_11,
10657 MFLR_12,
10658 MTLR_0,
10659 SUB_11_11_12,
10660 ADDIS_12_12,
10661 LWZ_0_12,
10662 LWZ_12_12,
10663 MTCTR_0,
10664 ADD_0_11_11,
10665 ADD_11_0_11,
10666 BCTR,
10667 NOP,
10668 NOP
10669 };
10670
176a0d42
AM
10671 /*
10672 * Non-PIC glink code is a little simpler.
10673 *
10674 * # ith PLT code stub.
10675 * lis 11,(plt+(i-1)*4)@ha
10676 * lwz 11,(plt+(i-1)*4)@l(11)
10677 * mtctr 11
10678 * bctr
10679 *
10680 * The branch table is the same, then comes
10681 *
10682 * PLTresolve:
10683 * lis 12,(got+4)@ha
10684 * addis 11,11,(-res_0)@ha
10685 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10686 * addi 11,11,(-res_0)@l # r11 = index * 4
10687 * mtctr 0
10688 * add 0,11,11
10689 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10690 * add 11,0,11 # r11 = index * 12 = reloc offset.
10691 * bctr
10692 */
d7128ce4
AM
10693 static const unsigned int plt_resolve[] =
10694 {
a6aa5195
AM
10695 LIS_12,
10696 ADDIS_11_11,
10697 LWZ_0_12,
10698 ADDI_11_11,
d7128ce4 10699 MTCTR_0,
7e8aeb9a 10700 ADD_0_11_11,
a6aa5195 10701 LWZ_12_12,
7e8aeb9a 10702 ADD_11_0_11,
d7128ce4
AM
10703 BCTR,
10704 NOP,
10705 NOP,
a6aa5195
AM
10706 NOP,
10707 NOP,
10708 NOP,
10709 NOP,
d7128ce4
AM
10710 NOP
10711 };
10712
a6aa5195
AM
10713 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10714 abort ();
10715 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10716 abort ();
10717
a6aa5195 10718 /* Build the branch table, one for each plt entry (less one),
86b9da88 10719 and perhaps some padding. */
a6aa5195
AM
10720 p = htab->glink->contents;
10721 p += htab->glink_pltresolve;
86b9da88
AM
10722 endp = htab->glink->contents;
10723 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10724 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10725 {
10726 bfd_put_32 (output_bfd, B + endp - p, p);
10727 p += 4;
10728 }
10729 while (p < endp)
10730 {
10731 bfd_put_32 (output_bfd, NOP, p);
10732 p += 4;
10733 }
10734
7e8aeb9a 10735 res0 = (htab->glink_pltresolve
86b9da88
AM
10736 + htab->glink->output_section->vma
10737 + htab->glink->output_offset);
10738
da3a2088
AM
10739 if (htab->params->ppc476_workaround)
10740 {
10741 /* Ensure that a call stub at the end of a page doesn't
10742 result in prefetch over the end of the page into the
10743 glink branch table. */
10744 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10745 bfd_vma page_addr;
10746 bfd_vma glink_start = (htab->glink->output_section->vma
10747 + htab->glink->output_offset);
10748
10749 for (page_addr = res0 & -pagesize;
10750 page_addr > glink_start;
10751 page_addr -= pagesize)
10752 {
10753 /* We have a plt call stub that may need fixing. */
10754 bfd_byte *loc;
10755 unsigned int insn;
10756
10757 loc = htab->glink->contents + page_addr - 4 - glink_start;
10758 insn = bfd_get_32 (output_bfd, loc);
10759 if (insn == BCTR)
10760 {
10761 /* By alignment, we know that there must be at least
10762 one other call stub before this one. */
10763 insn = bfd_get_32 (output_bfd, loc - 16);
10764 if (insn == BCTR)
10765 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10766 else
10767 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10768 }
10769 }
10770 }
10771
86b9da88 10772 /* Last comes the PLTresolve stub. */
0e1862bb 10773 if (bfd_link_pic (info))
7e8aeb9a 10774 {
a6aa5195 10775 bfd_vma bcl;
d7128ce4 10776
a6aa5195 10777 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10778 {
da3a2088
AM
10779 unsigned int insn = pic_plt_resolve[i];
10780
10781 if (htab->params->ppc476_workaround && insn == NOP)
10782 insn = BA + 0;
10783 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10784 p += 4;
10785 }
a6aa5195
AM
10786 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10787
10788 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10789 + htab->glink->output_section->vma
10790 + htab->glink->output_offset);
10791
10792 bfd_put_32 (output_bfd,
10793 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10794 bfd_put_32 (output_bfd,
10795 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10796 bfd_put_32 (output_bfd,
10797 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10798 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10799 {
10800 bfd_put_32 (output_bfd,
10801 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10802 bfd_put_32 (output_bfd,
10803 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10804 }
10805 else
10806 {
10807 bfd_put_32 (output_bfd,
10808 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10809 bfd_put_32 (output_bfd,
10810 LWZ_12_12 + 4, p + 9*4);
10811 }
7e8aeb9a
AM
10812 }
10813 else
d7128ce4 10814 {
a6aa5195 10815 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10816 {
da3a2088
AM
10817 unsigned int insn = plt_resolve[i];
10818
10819 if (htab->params->ppc476_workaround && insn == NOP)
10820 insn = BA + 0;
10821 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10822 p += 4;
10823 }
a6aa5195
AM
10824 p -= 4 * ARRAY_SIZE (plt_resolve);
10825
10826 bfd_put_32 (output_bfd,
10827 LIS_12 + PPC_HA (got + 4), p + 0*4);
10828 bfd_put_32 (output_bfd,
10829 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10830 bfd_put_32 (output_bfd,
10831 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10832 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10833 {
10834 bfd_put_32 (output_bfd,
10835 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10836 bfd_put_32 (output_bfd,
10837 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10838 }
10839 else
10840 {
10841 bfd_put_32 (output_bfd,
10842 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10843 bfd_put_32 (output_bfd,
10844 LWZ_12_12 + 4, p + 6*4);
10845 }
d7128ce4 10846 }
d7128ce4
AM
10847 }
10848
6177242a
AM
10849 if (htab->glink_eh_frame != NULL
10850 && htab->glink_eh_frame->contents != NULL)
10851 {
10852 unsigned char *p = htab->glink_eh_frame->contents;
10853 bfd_vma val;
10854
6177242a
AM
10855 p += sizeof (glink_eh_frame_cie);
10856 /* FDE length. */
6177242a
AM
10857 p += 4;
10858 /* CIE pointer. */
6177242a
AM
10859 p += 4;
10860 /* Offset to .glink. */
10861 val = (htab->glink->output_section->vma
10862 + htab->glink->output_offset);
10863 val -= (htab->glink_eh_frame->output_section->vma
10864 + htab->glink_eh_frame->output_offset);
10865 val -= p - htab->glink_eh_frame->contents;
10866 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10867
dbaa2011 10868 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10869 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10870 htab->glink_eh_frame,
10871 htab->glink_eh_frame->contents))
10872 return FALSE;
10873 }
10874
e87d4038 10875 return ret;
25dbc73a 10876}
e1a9cb8e 10877\f
6d00b590 10878#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10879#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10880#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10881#define TARGET_BIG_NAME "elf32-powerpc"
10882#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10883#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10884#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10885#ifdef __QNXTARGET__
10886#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10887#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10888#else
252b5132 10889#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10890#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10891#endif
b1342370 10892#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10893#define elf_info_to_howto ppc_elf_info_to_howto
10894
10895#ifdef EM_CYGNUS_POWERPC
10896#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10897#endif
10898
10899#ifdef EM_PPC_OLD
10900#define ELF_MACHINE_ALT2 EM_PPC_OLD
10901#endif
10902
10903#define elf_backend_plt_not_loaded 1
5474d94f 10904#define elf_backend_want_dynrelro 1
252b5132 10905#define elf_backend_can_gc_sections 1
51b64d56 10906#define elf_backend_can_refcount 1
b491616a 10907#define elf_backend_rela_normal 1
53291d1f 10908#define elf_backend_caches_rawsize 1
252b5132 10909
43c40ab2 10910#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10911#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10912#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10913#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10914#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10915#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10916#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10917#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10918
feee612b 10919#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
10920#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10921#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10922#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10923#define elf_backend_relocate_section ppc_elf_relocate_section
10924#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10925#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 10926#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10927#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10928#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10929#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10930#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10931#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10932#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10933#define elf_backend_fake_sections ppc_elf_fake_sections
10934#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
b9c361e0 10935#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10936#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10937#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10938#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10939#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10940#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10941#define elf_backend_final_write_processing ppc_elf_final_write_processing
10942#define elf_backend_write_section ppc_elf_write_section
551b43fd 10943#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10944#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10945#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10946#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10947#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10948
10949#include "elf32-target.h"
9d8504b1 10950
7b8e7dad
AM
10951/* FreeBSD Target */
10952
10953#undef TARGET_LITTLE_SYM
10954#undef TARGET_LITTLE_NAME
10955
10956#undef TARGET_BIG_SYM
6d00b590 10957#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
10958#undef TARGET_BIG_NAME
10959#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10960
10961#undef ELF_OSABI
10962#define ELF_OSABI ELFOSABI_FREEBSD
10963
10964#undef elf32_bed
10965#define elf32_bed elf32_powerpc_fbsd_bed
10966
10967#include "elf32-target.h"
10968
9d8504b1
PB
10969/* VxWorks Target */
10970
10971#undef TARGET_LITTLE_SYM
10972#undef TARGET_LITTLE_NAME
10973
10974#undef TARGET_BIG_SYM
6d00b590 10975#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
10976#undef TARGET_BIG_NAME
10977#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10978
7b8e7dad
AM
10979#undef ELF_OSABI
10980
d5e3d971
PB
10981/* VxWorks uses the elf default section flags for .plt. */
10982static const struct bfd_elf_special_section *
10983ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 10984{
d5e3d971
PB
10985 if (sec->name == NULL)
10986 return NULL;
10987
10988 if (strcmp (sec->name, ".plt") == 0)
10989 return _bfd_elf_get_sec_type_attr (abfd, sec);
10990
10991 return ppc_elf_get_sec_type_attr (abfd, sec);
10992}
9d8504b1
PB
10993
10994/* Like ppc_elf_link_hash_table_create, but overrides
10995 appropriately for VxWorks. */
10996static struct bfd_link_hash_table *
10997ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10998{
10999 struct bfd_link_hash_table *ret;
11000
11001 ret = ppc_elf_link_hash_table_create (abfd);
11002 if (ret)
11003 {
11004 struct ppc_elf_link_hash_table *htab
11005 = (struct ppc_elf_link_hash_table *)ret;
11006 htab->is_vxworks = 1;
4a3dc543 11007 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
11008 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
11009 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
11010 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
11011 }
11012 return ret;
11013}
11014
11015/* Tweak magic VxWorks symbols as they are loaded. */
11016static bfd_boolean
11017ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
11018 struct bfd_link_info *info,
11019 Elf_Internal_Sym *sym,
11020 const char **namep ATTRIBUTE_UNUSED,
11021 flagword *flagsp ATTRIBUTE_UNUSED,
11022 asection **secp,
11023 bfd_vma *valp)
11024{
11025 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
11026 valp))
11027 return FALSE;
11028
11029 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
11030}
11031
9d8504b1
PB
11032static void
11033ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11034{
11035 ppc_elf_final_write_processing(abfd, linker);
11036 elf_vxworks_final_write_processing(abfd, linker);
11037}
11038
11039/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11040 define it. */
11041#undef elf_backend_want_plt_sym
11042#define elf_backend_want_plt_sym 1
11043#undef elf_backend_want_got_plt
11044#define elf_backend_want_got_plt 1
11045#undef elf_backend_got_symbol_offset
11046#define elf_backend_got_symbol_offset 0
11047#undef elf_backend_plt_not_loaded
11048#define elf_backend_plt_not_loaded 0
11049#undef elf_backend_plt_readonly
11050#define elf_backend_plt_readonly 1
11051#undef elf_backend_got_header_size
11052#define elf_backend_got_header_size 12
64f52338
AM
11053#undef elf_backend_dtrel_excludes_plt
11054#define elf_backend_dtrel_excludes_plt 1
9d8504b1 11055
468392fb
AM
11056#undef bfd_elf32_get_synthetic_symtab
11057
9d8504b1
PB
11058#undef bfd_elf32_bfd_link_hash_table_create
11059#define bfd_elf32_bfd_link_hash_table_create \
11060 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
11061#undef elf_backend_add_symbol_hook
11062#define elf_backend_add_symbol_hook \
11063 ppc_elf_vxworks_add_symbol_hook
11064#undef elf_backend_link_output_symbol_hook
11065#define elf_backend_link_output_symbol_hook \
9c72ff84 11066 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
11067#undef elf_backend_final_write_processing
11068#define elf_backend_final_write_processing \
11069 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
11070#undef elf_backend_get_sec_type_attr
11071#define elf_backend_get_sec_type_attr \
11072 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
11073#undef elf_backend_emit_relocs
11074#define elf_backend_emit_relocs \
11075 elf_vxworks_emit_relocs
11076
11077#undef elf32_bed
11078#define elf32_bed ppc_elf_vxworks_bed
e054468f 11079#undef elf_backend_post_process_headers
9d8504b1
PB
11080
11081#include "elf32-target.h"
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