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252b5132 1/* PowerPC-specific support for 32-bit ELF
2571583a 2 Copyright (C) 1994-2017 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
de194d85 137/* The number of relocations in the PLTResolve slot when creating
9d8504b1
PB
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 */
5499c7c7 1474 0x3e007ff, /* 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 */
5499c7c7 1504 0x3e007ff, /* 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 */
5499c7c7 1534 0x3e007ff, /* 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 */
5499c7c7 1596 0x3e007ff, /* 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 */
5499c7c7 1626 0x3e007ff, /* 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 */
5499c7c7 1656 0x3e007ff, /* dst_mask */
b9c361e0
JL
1657 FALSE), /* pcrel_offset */
1658
83eef883
AFB
1659 /* e_li split20 format. */
1660 HOWTO (R_PPC_VLE_ADDR20, /* type */
1661 16, /* rightshift */
1662 2, /* size (0 = byte, 1 = short, 2 = long) */
1663 20, /* bitsize */
1664 FALSE, /* pc_relative */
1665 0, /* bitpos */
1666 complain_overflow_dont, /* complain_on_overflow */
1667 bfd_elf_generic_reloc, /* special_function */
1668 "R_PPC_VLE_ADDR20", /* name */
1669 FALSE, /* partial_inplace */
1670 0, /* src_mask */
1671 0x1f07ff, /* dst_mask */
1672 FALSE), /* pcrel_offset */
1673
e054468f
AM
1674 HOWTO (R_PPC_IRELATIVE, /* type */
1675 0, /* rightshift */
1676 2, /* size (0 = byte, 1 = short, 2 = long) */
1677 32, /* bitsize */
1678 FALSE, /* pc_relative */
1679 0, /* bitpos */
86c95733 1680 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1681 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1682 "R_PPC_IRELATIVE", /* name */
1683 FALSE, /* partial_inplace */
1684 0, /* src_mask */
1685 0xffffffff, /* dst_mask */
1686 FALSE), /* pcrel_offset */
1687
d7128ce4
AM
1688 /* A 16 bit relative relocation. */
1689 HOWTO (R_PPC_REL16, /* type */
1690 0, /* rightshift */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1692 16, /* bitsize */
1693 TRUE, /* pc_relative */
1694 0, /* bitpos */
86c95733 1695 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1696 bfd_elf_generic_reloc, /* special_function */
1697 "R_PPC_REL16", /* name */
1698 FALSE, /* partial_inplace */
1699 0, /* src_mask */
1700 0xffff, /* dst_mask */
1701 TRUE), /* pcrel_offset */
1702
1703 /* A 16 bit relative relocation without overflow. */
1704 HOWTO (R_PPC_REL16_LO, /* type */
1705 0, /* 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_LO", /* 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. */
1719 HOWTO (R_PPC_REL16_HI, /* type */
1720 16, /* rightshift */
1721 1, /* size (0 = byte, 1 = short, 2 = long) */
1722 16, /* bitsize */
1723 TRUE, /* pc_relative */
1724 0, /* bitpos */
1725 complain_overflow_dont, /* complain_on_overflow */
1726 bfd_elf_generic_reloc, /* special_function */
1727 "R_PPC_REL16_HI", /* name */
1728 FALSE, /* partial_inplace */
1729 0, /* src_mask */
1730 0xffff, /* dst_mask */
1731 TRUE), /* pcrel_offset */
1732
1733 /* The high order 16 bits of a relative address, plus 1 if the contents of
1734 the low 16 bits, treated as a signed number, is negative. */
1735 HOWTO (R_PPC_REL16_HA, /* type */
1736 16, /* rightshift */
1737 1, /* size (0 = byte, 1 = short, 2 = long) */
1738 16, /* bitsize */
1739 TRUE, /* pc_relative */
1740 0, /* bitpos */
1741 complain_overflow_dont, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc, /* special_function */
1743 "R_PPC_REL16_HA", /* name */
1744 FALSE, /* partial_inplace */
1745 0, /* src_mask */
1746 0xffff, /* dst_mask */
1747 TRUE), /* pcrel_offset */
1748
a680de9a
PB
1749 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1750 HOWTO (R_PPC_REL16DX_HA, /* type */
1751 16, /* rightshift */
1752 2, /* size (0 = byte, 1 = short, 2 = long) */
1753 16, /* bitsize */
1754 TRUE, /* pc_relative */
1755 0, /* bitpos */
1756 complain_overflow_signed, /* complain_on_overflow */
1757 ppc_elf_addr16_ha_reloc, /* special_function */
1758 "R_PPC_REL16DX_HA", /* name */
1759 FALSE, /* partial_inplace */
1760 0, /* src_mask */
1761 0x1fffc1, /* dst_mask */
1762 TRUE), /* pcrel_offset */
1763
7ba71655
AM
1764 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1765 HOWTO (R_PPC_16DX_HA, /* type */
1766 16, /* rightshift */
1767 2, /* size (0 = byte, 1 = short, 2 = long) */
1768 16, /* bitsize */
1769 FALSE, /* pc_relative */
1770 0, /* bitpos */
1771 complain_overflow_signed, /* complain_on_overflow */
1772 ppc_elf_addr16_ha_reloc, /* special_function */
1773 "R_PPC_16DX_HA", /* name */
1774 FALSE, /* partial_inplace */
1775 0, /* src_mask */
1776 0x1fffc1, /* dst_mask */
1777 FALSE), /* pcrel_offset */
1778
25dbc73a
AM
1779 /* GNU extension to record C++ vtable hierarchy. */
1780 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1781 0, /* rightshift */
1782 0, /* size (0 = byte, 1 = short, 2 = long) */
1783 0, /* bitsize */
1784 FALSE, /* pc_relative */
1785 0, /* bitpos */
1786 complain_overflow_dont, /* complain_on_overflow */
1787 NULL, /* special_function */
1788 "R_PPC_GNU_VTINHERIT", /* name */
1789 FALSE, /* partial_inplace */
1790 0, /* src_mask */
1791 0, /* dst_mask */
1792 FALSE), /* pcrel_offset */
1793
1794 /* GNU extension to record C++ vtable member usage. */
1795 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1796 0, /* rightshift */
1797 0, /* size (0 = byte, 1 = short, 2 = long) */
1798 0, /* bitsize */
1799 FALSE, /* pc_relative */
1800 0, /* bitpos */
1801 complain_overflow_dont, /* complain_on_overflow */
1802 NULL, /* special_function */
1803 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1804 FALSE, /* partial_inplace */
1805 0, /* src_mask */
25dbc73a 1806 0, /* dst_mask */
7619e7c7
AM
1807 FALSE), /* pcrel_offset */
1808
25dbc73a
AM
1809 /* Phony reloc to handle AIX style TOC entries. */
1810 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1811 0, /* rightshift */
1812 1, /* size (0 = byte, 1 = short, 2 = long) */
1813 16, /* bitsize */
1814 FALSE, /* pc_relative */
1815 0, /* bitpos */
25dbc73a 1816 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1817 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1818 "R_PPC_TOC16", /* name */
7619e7c7
AM
1819 FALSE, /* partial_inplace */
1820 0, /* src_mask */
1821 0xffff, /* dst_mask */
1822 FALSE), /* pcrel_offset */
25dbc73a
AM
1823};
1824\f
1825/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1826
1827static void
1828ppc_elf_howto_init (void)
1829{
1830 unsigned int i, type;
1831
1832 for (i = 0;
1833 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1834 i++)
1835 {
1836 type = ppc_elf_howto_raw[i].type;
1837 if (type >= (sizeof (ppc_elf_howto_table)
1838 / sizeof (ppc_elf_howto_table[0])))
1839 abort ();
1840 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1841 }
1842}
1843
1844static reloc_howto_type *
1845ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1846 bfd_reloc_code_real_type code)
1847{
1848 enum elf_ppc_reloc_type r;
1849
1850 /* Initialize howto table if not already done. */
1851 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1852 ppc_elf_howto_init ();
1853
1854 switch (code)
1855 {
1856 default:
1857 return NULL;
1858
1859 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1860 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1861 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1862 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1863 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1864 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1865 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1866 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1867 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1868 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1869 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1870 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1871 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1872 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1873 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1874 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1875 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1876 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1877 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1878 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1879 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1880 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1881 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1882 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1883 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1884 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1885 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1886 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1887 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1888 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1889 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1890 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1891 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1892 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1893 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1894 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1895 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1896 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1897 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1898 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1899 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1900 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1901 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1902 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1903 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1904 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1905 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1906 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1907 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1908 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1909 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1910 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1911 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1912 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1913 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1914 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1915 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1916 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1917 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1918 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1919 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1920 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1921 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1922 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1923 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1924 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1925 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1926 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1927 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1928 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1929 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1930 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1931 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1932 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1933 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1934 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1935 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1936 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1937 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1938 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1939 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1940 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1941 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1942 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1943 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1944 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1945 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1946 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1947 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1948 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1949 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1950 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1951 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1952 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1953 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1954 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1955 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1956 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1957 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1958 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1959 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1960 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1961 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1962 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1963 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1964 r = R_PPC_VLE_SDAREL_LO16A;
1965 break;
1966 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1967 r = R_PPC_VLE_SDAREL_LO16D;
1968 break;
1969 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1970 r = R_PPC_VLE_SDAREL_HI16A;
1971 break;
1972 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1973 r = R_PPC_VLE_SDAREL_HI16D;
1974 break;
1975 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1976 r = R_PPC_VLE_SDAREL_HA16A;
1977 break;
1978 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1979 r = R_PPC_VLE_SDAREL_HA16D;
1980 break;
d7128ce4
AM
1981 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1982 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1983 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1984 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
7ba71655 1985 case BFD_RELOC_PPC_16DX_HA: r = R_PPC_16DX_HA; break;
a680de9a 1986 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
1987 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1988 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1989 }
1990
1991 return ppc_elf_howto_table[r];
1992};
1993
157090f7
AM
1994static reloc_howto_type *
1995ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1996 const char *r_name)
1997{
1998 unsigned int i;
1999
2000 for (i = 0;
2001 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2002 i++)
2003 if (ppc_elf_howto_raw[i].name != NULL
2004 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2005 return &ppc_elf_howto_raw[i];
2006
2007 return NULL;
2008}
2009
25dbc73a
AM
2010/* Set the howto pointer for a PowerPC ELF reloc. */
2011
2012static void
4aef7643 2013ppc_elf_info_to_howto (bfd *abfd,
25dbc73a
AM
2014 arelent *cache_ptr,
2015 Elf_Internal_Rela *dst)
2016{
cd21f5da
NC
2017 unsigned int r_type;
2018
25dbc73a
AM
2019 /* Initialize howto table if not already done. */
2020 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2021 ppc_elf_howto_init ();
2022
cd21f5da
NC
2023 r_type = ELF32_R_TYPE (dst->r_info);
2024 if (r_type >= R_PPC_max)
2025 {
695344c0 2026 /* xgettext:c-format */
4eca0228
AM
2027 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2028 abfd, r_type);
cd21f5da
NC
2029 bfd_set_error (bfd_error_bad_value);
2030 r_type = R_PPC_NONE;
2031 }
2032 cache_ptr->howto = ppc_elf_howto_table[r_type];
375de94a
AM
2033
2034 /* Just because the above assert didn't trigger doesn't mean that
2035 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2036 if (!cache_ptr->howto)
2037 {
695344c0 2038 /* xgettext:c-format */
4eca0228
AM
2039 _bfd_error_handler (_("%B: invalid relocation type %d"),
2040 abfd, r_type);
375de94a
AM
2041 bfd_set_error (bfd_error_bad_value);
2042
2043 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2044 }
25dbc73a
AM
2045}
2046
d7128ce4 2047/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2048
2049static bfd_reloc_status_type
4aef7643 2050ppc_elf_addr16_ha_reloc (bfd *abfd,
25dbc73a
AM
2051 arelent *reloc_entry,
2052 asymbol *symbol,
4aef7643 2053 void *data,
25dbc73a
AM
2054 asection *input_section,
2055 bfd *output_bfd,
2056 char **error_message ATTRIBUTE_UNUSED)
2057{
a680de9a
PB
2058 enum elf_ppc_reloc_type r_type;
2059 long insn;
2060 bfd_size_type octets;
2061 bfd_vma value;
25dbc73a
AM
2062
2063 if (output_bfd != NULL)
2064 {
2065 reloc_entry->address += input_section->output_offset;
2066 return bfd_reloc_ok;
2067 }
2068
a680de9a
PB
2069 reloc_entry->addend += 0x8000;
2070 r_type = reloc_entry->howto->type;
2071 if (r_type != R_PPC_REL16DX_HA)
2072 return bfd_reloc_continue;
2073
2074 value = 0;
2075 if (!bfd_is_com_section (symbol->section))
2076 value = symbol->value;
2077 value += (reloc_entry->addend
2078 + symbol->section->output_offset
2079 + symbol->section->output_section->vma);
2080 value -= (reloc_entry->address
2081 + input_section->output_offset
2082 + input_section->output_section->vma);
2083 value >>= 16;
2084
2085 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2086 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2087 insn &= ~0x1fffc1;
2088 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2089 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2090 return bfd_reloc_ok;
25dbc73a
AM
2091}
2092
2093static bfd_reloc_status_type
2094ppc_elf_unhandled_reloc (bfd *abfd,
2095 arelent *reloc_entry,
2096 asymbol *symbol,
2097 void *data,
2098 asection *input_section,
2099 bfd *output_bfd,
2100 char **error_message)
2101{
2102 /* If this is a relocatable link (output_bfd test tells us), just
2103 call the generic function. Any adjustment will be done at final
2104 link time. */
2105 if (output_bfd != NULL)
2106 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2107 input_section, output_bfd, error_message);
2108
2109 if (error_message != NULL)
2110 {
2111 static char buf[60];
2112 sprintf (buf, _("generic linker can't handle %s"),
2113 reloc_entry->howto->name);
2114 *error_message = buf;
2115 }
2116 return bfd_reloc_dangerous;
2117}
2118\f
2119/* Sections created by the linker. */
2120
2121typedef struct elf_linker_section
2122{
c9a2f333 2123 /* Pointer to the bfd section. */
25dbc73a 2124 asection *section;
c9a2f333
AM
2125 /* Section name. */
2126 const char *name;
2127 /* Associated bss section name. */
2128 const char *bss_name;
2129 /* Associated symbol name. */
2130 const char *sym_name;
046183de
AM
2131 /* Associated symbol. */
2132 struct elf_link_hash_entry *sym;
25dbc73a
AM
2133} elf_linker_section_t;
2134
2135/* Linked list of allocated pointer entries. This hangs off of the
2136 symbol lists, and provides allows us to return different pointers,
2137 based on different addend's. */
2138
2139typedef struct elf_linker_section_pointers
2140{
2141 /* next allocated pointer for this symbol */
2142 struct elf_linker_section_pointers *next;
2143 /* offset of pointer from beginning of section */
2144 bfd_vma offset;
2145 /* addend used */
2146 bfd_vma addend;
2147 /* which linker section this is */
2148 elf_linker_section_t *lsect;
25dbc73a
AM
2149} elf_linker_section_pointers_t;
2150
2151struct ppc_elf_obj_tdata
2152{
2153 struct elf_obj_tdata elf;
2154
2155 /* A mapping from local symbols to offsets into the various linker
2156 sections added. This is index by the symbol index. */
2157 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2158
2159 /* Flags used to auto-detect plt type. */
2160 unsigned int makes_plt_call : 1;
2161 unsigned int has_rel16 : 1;
25dbc73a
AM
2162};
2163
2164#define ppc_elf_tdata(bfd) \
2165 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2166
25dbc73a
AM
2167#define elf_local_ptr_offsets(bfd) \
2168 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2169
0c8d6e5c
AM
2170#define is_ppc_elf(bfd) \
2171 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2172 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2173
25dbc73a 2174/* Override the generic function because we store some extras. */
7619e7c7 2175
25dbc73a
AM
2176static bfd_boolean
2177ppc_elf_mkobject (bfd *abfd)
2178{
0ffa91dd 2179 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2180 PPC32_ELF_DATA);
25dbc73a 2181}
7619e7c7 2182
14b57c7c
AM
2183/* When defaulting arch/mach, decode apuinfo to find a better match. */
2184
2185bfd_boolean
2186_bfd_elf_ppc_set_arch (bfd *abfd)
2187{
2188 unsigned long mach = 0;
2189 asection *s;
2190 unsigned char *contents;
2191
2192 if (abfd->arch_info->bits_per_word == 32
2193 && bfd_big_endian (abfd))
2194 {
2195
2196 for (s = abfd->sections; s != NULL; s = s->next)
2197 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2198 break;
2199 if (s != NULL)
2200 mach = bfd_mach_ppc_vle;
2201 }
2202
2203 if (mach == 0)
2204 {
2205 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2206 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2207 {
2208 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2209 unsigned int i;
2210
2211 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2212 {
2213 unsigned int val = bfd_get_32 (abfd, contents + i);
2214 switch (val >> 16)
2215 {
2216 case PPC_APUINFO_PMR:
2217 case PPC_APUINFO_RFMCI:
2218 if (mach == 0)
2219 mach = bfd_mach_ppc_titan;
2220 break;
2221
2222 case PPC_APUINFO_ISEL:
2223 case PPC_APUINFO_CACHELCK:
2224 if (mach == bfd_mach_ppc_titan)
2225 mach = bfd_mach_ppc_e500mc;
2226 break;
2227
2228 case PPC_APUINFO_SPE:
2229 case PPC_APUINFO_EFS:
2230 case PPC_APUINFO_BRLOCK:
2231 if (mach != bfd_mach_ppc_vle)
2232 mach = bfd_mach_ppc_e500;
8941017b 2233 break;
14b57c7c
AM
2234
2235 case PPC_APUINFO_VLE:
2236 mach = bfd_mach_ppc_vle;
2237 break;
2238
2239 default:
2240 mach = -1ul;
2241 }
2242 }
2243 free (contents);
2244 }
2245 }
2246
2247 if (mach != 0 && mach != -1ul)
2248 {
2249 const bfd_arch_info_type *arch;
2250
2251 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2252 if (arch->mach == mach)
2253 {
2254 abfd->arch_info = arch;
2255 break;
2256 }
2257 }
2258 return TRUE;
2259}
2260
25dbc73a 2261/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2262 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2263
25dbc73a
AM
2264static bfd_boolean
2265ppc_elf_object_p (bfd *abfd)
2266{
14b57c7c
AM
2267 if (!abfd->arch_info->the_default)
2268 return TRUE;
2269
2270 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2271 {
2272 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2273
25dbc73a
AM
2274 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2275 {
2276 /* Relies on arch after 64 bit default being 32 bit default. */
2277 abfd->arch_info = abfd->arch_info->next;
2278 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2279 }
2280 }
14b57c7c 2281 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2282}
7619e7c7 2283
25dbc73a 2284/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2285
25dbc73a
AM
2286static bfd_boolean
2287ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2288{
2289 BFD_ASSERT (!elf_flags_init (abfd)
2290 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2291
25dbc73a
AM
2292 elf_elfheader (abfd)->e_flags = flags;
2293 elf_flags_init (abfd) = TRUE;
2294 return TRUE;
2295}
2296
25dbc73a 2297/* Support for core dump NOTE sections. */
deaaf2f3 2298
b34976b6 2299static bfd_boolean
25dbc73a 2300ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2301{
25dbc73a
AM
2302 int offset;
2303 unsigned int size;
252b5132 2304
25dbc73a
AM
2305 switch (note->descsz)
2306 {
2307 default:
2308 return FALSE;
252b5132 2309
25dbc73a
AM
2310 case 268: /* Linux/PPC. */
2311 /* pr_cursig */
228e534f 2312 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2313
25dbc73a 2314 /* pr_pid */
228e534f 2315 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2316
25dbc73a
AM
2317 /* pr_reg */
2318 offset = 72;
2319 size = 192;
deaaf2f3 2320
25dbc73a
AM
2321 break;
2322 }
deaaf2f3 2323
25dbc73a
AM
2324 /* Make a ".reg/999" section. */
2325 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2326 size, note->descpos + offset);
2327}
252b5132 2328
25dbc73a
AM
2329static bfd_boolean
2330ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2331{
2332 switch (note->descsz)
deaaf2f3 2333 {
25dbc73a
AM
2334 default:
2335 return FALSE;
deaaf2f3 2336
25dbc73a 2337 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2338 elf_tdata (abfd)->core->pid
bc989cdc 2339 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2340 elf_tdata (abfd)->core->program
25dbc73a 2341 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2342 elf_tdata (abfd)->core->command
25dbc73a
AM
2343 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2344 }
9abc968f 2345
25dbc73a
AM
2346 /* Note that for some reason, a spurious space is tacked
2347 onto the end of the args in some (at least one anyway)
2348 implementations, so strip it off if it exists. */
70bccea4 2349
25dbc73a 2350 {
228e534f 2351 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2352 int n = strlen (command);
70bccea4 2353
25dbc73a
AM
2354 if (0 < n && command[n - 1] == ' ')
2355 command[n - 1] = '\0';
2356 }
deaaf2f3 2357
25dbc73a
AM
2358 return TRUE;
2359}
deaaf2f3 2360
183e98be
AM
2361static char *
2362ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2363{
2364 switch (note_type)
2365 {
2366 default:
2367 return NULL;
2368
2369 case NT_PRPSINFO:
2370 {
2371 char data[128];
2372 va_list ap;
2373
2374 va_start (ap, note_type);
75cd47ed 2375 memset (data, 0, sizeof (data));
183e98be
AM
2376 strncpy (data + 32, va_arg (ap, const char *), 16);
2377 strncpy (data + 48, va_arg (ap, const char *), 80);
2378 va_end (ap);
2379 return elfcore_write_note (abfd, buf, bufsiz,
2380 "CORE", note_type, data, sizeof (data));
2381 }
2382
2383 case NT_PRSTATUS:
2384 {
2385 char data[268];
2386 va_list ap;
2387 long pid;
2388 int cursig;
2389 const void *greg;
2390
2391 va_start (ap, note_type);
2392 memset (data, 0, 72);
2393 pid = va_arg (ap, long);
2394 bfd_put_32 (abfd, pid, data + 24);
2395 cursig = va_arg (ap, int);
2396 bfd_put_16 (abfd, cursig, data + 12);
2397 greg = va_arg (ap, const void *);
2398 memcpy (data + 72, greg, 192);
2399 memset (data + 264, 0, 4);
2400 va_end (ap);
2401 return elfcore_write_note (abfd, buf, bufsiz,
2402 "CORE", note_type, data, sizeof (data));
2403 }
2404 }
2405}
2406
b9c361e0 2407static flagword
68ffbac6 2408ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2409{
2410
2411 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2412 return SHF_PPC_VLE;
2413
2414 return 0;
2415}
2416
25dbc73a
AM
2417/* Return address for Ith PLT stub in section PLT, for relocation REL
2418 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2419
25dbc73a
AM
2420static bfd_vma
2421ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2422 const asection *plt ATTRIBUTE_UNUSED,
2423 const arelent *rel)
2424{
2425 return rel->address;
2426}
deaaf2f3 2427
25dbc73a 2428/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2429 is called when bfd_section_from_shdr finds a section with an unknown
2430 type. */
deaaf2f3 2431
25dbc73a 2432static bfd_boolean
6dc132d9
L
2433ppc_elf_section_from_shdr (bfd *abfd,
2434 Elf_Internal_Shdr *hdr,
2435 const char *name,
2436 int shindex)
25dbc73a
AM
2437{
2438 asection *newsect;
2439 flagword flags;
d1c6de6f 2440
6dc132d9 2441 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2442 return FALSE;
deaaf2f3 2443
25dbc73a
AM
2444 newsect = hdr->bfd_section;
2445 flags = bfd_get_section_flags (abfd, newsect);
2446 if (hdr->sh_flags & SHF_EXCLUDE)
2447 flags |= SEC_EXCLUDE;
9abc968f 2448
25dbc73a
AM
2449 if (hdr->sh_type == SHT_ORDERED)
2450 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2451
25dbc73a
AM
2452 bfd_set_section_flags (abfd, newsect, flags);
2453 return TRUE;
2454}
2455
2456/* Set up any other section flags and such that may be necessary. */
2457
2458static bfd_boolean
2459ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2460 Elf_Internal_Shdr *shdr,
2461 asection *asect)
2462{
25dbc73a
AM
2463 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2464 shdr->sh_type = SHT_ORDERED;
2465
2466 return TRUE;
2467}
2468
2469/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2470 need to bump up the number of section headers. */
2471
2472static int
a6b96beb
AM
2473ppc_elf_additional_program_headers (bfd *abfd,
2474 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2475{
2476 asection *s;
2477 int ret = 0;
d1c6de6f 2478
25dbc73a
AM
2479 s = bfd_get_section_by_name (abfd, ".sbss2");
2480 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2481 ++ret;
d1c6de6f 2482
25dbc73a
AM
2483 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2484 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2485 ++ret;
deaaf2f3 2486
25dbc73a
AM
2487 return ret;
2488}
deaaf2f3 2489
68ffbac6 2490/* Modify the segment map for VLE executables. */
b9c361e0
JL
2491
2492bfd_boolean
2493ppc_elf_modify_segment_map (bfd *abfd,
2494 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2495{
f7d69005 2496 struct elf_segment_map *m;
b9c361e0
JL
2497
2498 /* At this point in the link, output sections have already been sorted by
2499 LMA and assigned to segments. All that is left to do is to ensure
2500 there is no mixing of VLE & non-VLE sections in a text segment.
2501 If we find that case, we split the segment.
2502 We maintain the original output section order. */
2503
12bd6957 2504 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2505 {
f7d69005
AM
2506 struct elf_segment_map *n;
2507 bfd_size_type amt;
2508 unsigned int j, k;
2509 unsigned int p_flags;
2510
2511 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2512 continue;
2513
f7d69005 2514 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2515 {
f7d69005
AM
2516 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2517 p_flags |= PF_W;
2518 if ((m->sections[j]->flags & SEC_CODE) != 0)
2519 {
2520 p_flags |= PF_X;
2521 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2522 p_flags |= PF_PPC_VLE;
2523 break;
2524 }
2525 }
2526 if (j != m->count)
2527 while (++j != m->count)
2528 {
2529 unsigned int p_flags1 = PF_R;
94caa966 2530
f7d69005
AM
2531 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2532 p_flags1 |= PF_W;
2533 if ((m->sections[j]->flags & SEC_CODE) != 0)
2534 {
2535 p_flags1 |= PF_X;
2536 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2537 p_flags1 |= PF_PPC_VLE;
2538 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2539 break;
2540 }
2541 p_flags |= p_flags1;
2542 }
2543 /* If we're splitting a segment which originally contained rw
2544 sections then those sections might now only be in one of the
2545 two parts. So always set p_flags if splitting, even if we
2546 are being called for objcopy with p_flags_valid set. */
2547 if (j != m->count || !m->p_flags_valid)
2548 {
2549 m->p_flags_valid = 1;
2550 m->p_flags = p_flags;
2551 }
2552 if (j == m->count)
b9c361e0
JL
2553 continue;
2554
f7d69005 2555 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2556 the remainder are put in a new segment.
2557 The scan resumes with the new segment. */
2558
b9c361e0
JL
2559 amt = sizeof (struct elf_segment_map);
2560 amt += (m->count - j - 1) * sizeof (asection *);
2561 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2562 if (n == NULL)
954b63d4 2563 return FALSE;
b9c361e0
JL
2564
2565 n->p_type = PT_LOAD;
b9c361e0
JL
2566 n->count = m->count - j;
2567 for (k = 0; k < n->count; ++k)
f7d69005
AM
2568 n->sections[k] = m->sections[j + k];
2569 m->count = j;
2570 m->p_size_valid = 0;
b9c361e0
JL
2571 n->next = m->next;
2572 m->next = n;
b9c361e0
JL
2573 }
2574
2575 return TRUE;
2576}
2577
25dbc73a
AM
2578/* Add extra PPC sections -- Note, for now, make .sbss2 and
2579 .PPC.EMB.sbss0 a normal section, and not a bss section so
2580 that the linker doesn't crater when trying to make more than
2581 2 sections. */
e656e369 2582
b35d266b 2583static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2584{
14b57c7c
AM
2585 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2586 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2587 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2588 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2589 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2590 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2591 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2592 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2593 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2594 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2595};
2596
551b43fd
AM
2597/* This is what we want for new plt/got. */
2598static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2599 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2600
2601static const struct bfd_elf_special_section *
4aef7643 2602ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
7f4d3958 2603{
b35d266b 2604 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2605
2606 /* See if this is one of the special sections. */
2607 if (sec->name == NULL)
2608 return NULL;
2609
2610 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2611 sec->use_rela_p);
2612 if (ssect != NULL)
2613 {
2614 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2615 ssect = &ppc_alt_plt;
2616 return ssect;
2617 }
2618
2619 return _bfd_elf_get_sec_type_attr (abfd, sec);
2620}
25dbc73a
AM
2621\f
2622/* Very simple linked list structure for recording apuinfo values. */
2623typedef struct apuinfo_list
2624{
2625 struct apuinfo_list *next;
2626 unsigned long value;
2627}
2628apuinfo_list;
e656e369 2629
25dbc73a 2630static apuinfo_list *head;
f2faa800 2631static bfd_boolean apuinfo_set;
deaaf2f3 2632
25dbc73a
AM
2633static void
2634apuinfo_list_init (void)
2635{
2636 head = NULL;
f2faa800 2637 apuinfo_set = FALSE;
25dbc73a 2638}
9abc968f 2639
25dbc73a
AM
2640static void
2641apuinfo_list_add (unsigned long value)
2642{
2643 apuinfo_list *entry = head;
deaaf2f3 2644
25dbc73a
AM
2645 while (entry != NULL)
2646 {
2647 if (entry->value == value)
2648 return;
2649 entry = entry->next;
2650 }
b4a38de6 2651
25dbc73a
AM
2652 entry = bfd_malloc (sizeof (* entry));
2653 if (entry == NULL)
2654 return;
e656e369 2655
25dbc73a
AM
2656 entry->value = value;
2657 entry->next = head;
2658 head = entry;
2659}
9abc968f 2660
25dbc73a
AM
2661static unsigned
2662apuinfo_list_length (void)
2663{
2664 apuinfo_list *entry;
2665 unsigned long count;
9abc968f 2666
25dbc73a
AM
2667 for (entry = head, count = 0;
2668 entry;
2669 entry = entry->next)
2670 ++ count;
e656e369 2671
25dbc73a
AM
2672 return count;
2673}
eea6121a 2674
25dbc73a
AM
2675static inline unsigned long
2676apuinfo_list_element (unsigned long number)
2677{
2678 apuinfo_list * entry;
e656e369 2679
25dbc73a
AM
2680 for (entry = head;
2681 entry && number --;
2682 entry = entry->next)
2683 ;
252b5132 2684
25dbc73a
AM
2685 return entry ? entry->value : 0;
2686}
2687
2688static void
2689apuinfo_list_finish (void)
2690{
2691 apuinfo_list *entry;
2692
2693 for (entry = head; entry;)
252b5132 2694 {
25dbc73a
AM
2695 apuinfo_list *next = entry->next;
2696 free (entry);
2697 entry = next;
2698 }
9abc968f 2699
25dbc73a
AM
2700 head = NULL;
2701}
9abc968f 2702
25dbc73a
AM
2703/* Scan the input BFDs and create a linked list of
2704 the APUinfo values that will need to be emitted. */
9abc968f 2705
25dbc73a
AM
2706static void
2707ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2708{
2709 bfd *ibfd;
2710 asection *asec;
deddc40b
NS
2711 char *buffer = NULL;
2712 bfd_size_type largest_input_size = 0;
25dbc73a 2713 unsigned i;
25dbc73a
AM
2714 unsigned long length;
2715 const char *error_message = NULL;
9abc968f 2716
25dbc73a
AM
2717 if (link_info == NULL)
2718 return;
9abc968f 2719
25dbc73a 2720 apuinfo_list_init ();
252b5132 2721
25dbc73a 2722 /* Read in the input sections contents. */
c72f2fb2 2723 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2724 {
25dbc73a 2725 unsigned long datum;
252b5132 2726
25dbc73a
AM
2727 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2728 if (asec == NULL)
2729 continue;
252b5132 2730
695344c0 2731 /* xgettext:c-format */
deddc40b 2732 error_message = _("corrupt %s section in %B");
25dbc73a 2733 length = asec->size;
deddc40b
NS
2734 if (length < 20)
2735 goto fail;
2736
f2faa800 2737 apuinfo_set = TRUE;
deddc40b 2738 if (largest_input_size < asec->size)
25dbc73a 2739 {
deddc40b
NS
2740 if (buffer)
2741 free (buffer);
2742 largest_input_size = asec->size;
2743 buffer = bfd_malloc (largest_input_size);
2744 if (!buffer)
2745 return;
25dbc73a 2746 }
5b914448 2747
25dbc73a 2748 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2749 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2750 {
695344c0 2751 /* xgettext:c-format */
25dbc73a
AM
2752 error_message = _("unable to read in %s section from %B");
2753 goto fail;
2754 }
252b5132 2755
25dbc73a
AM
2756 /* Verify the contents of the header. Note - we have to
2757 extract the values this way in order to allow for a
2758 host whose endian-ness is different from the target. */
deddc40b 2759 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2760 if (datum != sizeof APUINFO_LABEL)
2761 goto fail;
252b5132 2762
deddc40b 2763 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2764 if (datum != 0x2)
2765 goto fail;
252b5132 2766
deddc40b 2767 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2768 goto fail;
252b5132 2769
25dbc73a 2770 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2771 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2772 if (datum + 20 != length)
2773 goto fail;
2774
25dbc73a
AM
2775 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2776 for (i = 0; i < datum; i += 4)
deddc40b 2777 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2778 }
2779
25dbc73a 2780 error_message = NULL;
252b5132 2781
f2faa800 2782 if (apuinfo_set)
deddc40b 2783 {
f2faa800
NS
2784 /* Compute the size of the output section. */
2785 unsigned num_entries = apuinfo_list_length ();
5b914448 2786
deddc40b
NS
2787 /* Set the output section size, if it exists. */
2788 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2789
deddc40b
NS
2790 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2791 {
2792 ibfd = abfd;
695344c0 2793 /* xgettext:c-format */
deddc40b
NS
2794 error_message = _("warning: unable to set size of %s section in %B");
2795 }
2796 }
25dbc73a
AM
2797
2798 fail:
deddc40b
NS
2799 if (buffer)
2800 free (buffer);
25dbc73a
AM
2801
2802 if (error_message)
cd9af601 2803 _bfd_error_handler (error_message, APUINFO_SECTION_NAME, ibfd);
25dbc73a 2804}
252b5132 2805
25dbc73a
AM
2806/* Prevent the output section from accumulating the input sections'
2807 contents. We have already stored this in our linked list structure. */
252b5132 2808
25dbc73a
AM
2809static bfd_boolean
2810ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2811 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2812 asection *asec,
2813 bfd_byte *contents ATTRIBUTE_UNUSED)
2814{
f2faa800 2815 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2816}
2817
25dbc73a
AM
2818/* Finally we can generate the output section. */
2819
2820static void
2821ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2822{
25dbc73a
AM
2823 bfd_byte *buffer;
2824 asection *asec;
2825 unsigned i;
2826 unsigned num_entries;
2827 bfd_size_type length;
7619e7c7 2828
25dbc73a
AM
2829 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2830 if (asec == NULL)
2831 return;
2832
f2faa800 2833 if (!apuinfo_set)
25dbc73a
AM
2834 return;
2835
2836 length = asec->size;
2837 if (length < 20)
2838 return;
2839
2840 buffer = bfd_malloc (length);
2841 if (buffer == NULL)
7619e7c7 2842 {
4eca0228 2843 _bfd_error_handler
25dbc73a
AM
2844 (_("failed to allocate space for new APUinfo section."));
2845 return;
7619e7c7 2846 }
7619e7c7 2847
25dbc73a
AM
2848 /* Create the apuinfo header. */
2849 num_entries = apuinfo_list_length ();
2850 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2851 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2852 bfd_put_32 (abfd, 0x2, buffer + 8);
2853 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2854
25dbc73a
AM
2855 length = 20;
2856 for (i = 0; i < num_entries; i++)
feee612b 2857 {
25dbc73a
AM
2858 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2859 length += 4;
feee612b 2860 }
feee612b 2861
25dbc73a 2862 if (length != asec->size)
4eca0228 2863 _bfd_error_handler (_("failed to compute new APUinfo section."));
252b5132 2864
25dbc73a 2865 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
4eca0228 2866 _bfd_error_handler (_("failed to install new APUinfo section."));
252b5132 2867
25dbc73a
AM
2868 free (buffer);
2869
2870 apuinfo_list_finish ();
252b5132 2871}
25dbc73a 2872\f
7382d32a 2873static bfd_boolean
c6dd29ce 2874is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2875{
c6dd29ce 2876 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2877
c6dd29ce 2878 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2879 return FALSE;
2880
c6dd29ce
AM
2881 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2882 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2883 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2884 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2885}
2886
468392fb
AM
2887static bfd_boolean
2888section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2889{
2890 bfd_vma vma = *(bfd_vma *) ptr;
2891 return ((section->flags & SEC_ALLOC) != 0
2892 && section->vma <= vma
2893 && vma < section->vma + section->size);
2894}
2895
2896static long
2897ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2898 long dynsymcount, asymbol **dynsyms,
2899 asymbol **ret)
2900{
2901 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2902 asection *plt, *relplt, *dynamic, *glink;
2903 bfd_vma glink_vma = 0;
2904 bfd_vma resolv_vma = 0;
2905 bfd_vma stub_vma;
2906 asymbol *s;
2907 arelent *p;
2908 long count, i;
2909 size_t size;
2910 char *names;
2911 bfd_byte buf[4];
2912
2913 *ret = NULL;
2914
2915 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2916 return 0;
2917
2918 if (dynsymcount <= 0)
2919 return 0;
2920
2921 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2922 if (relplt == NULL)
2923 return 0;
2924
2925 plt = bfd_get_section_by_name (abfd, ".plt");
2926 if (plt == NULL)
2927 return 0;
2928
2929 /* Call common code to handle old-style executable PLTs. */
2930 if (elf_section_flags (plt) & SHF_EXECINSTR)
2931 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2932 dynsymcount, dynsyms, ret);
2933
2934 /* If this object was prelinked, the prelinker stored the address
2935 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2936 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2937 if (dynamic != NULL)
2938 {
2939 bfd_byte *dynbuf, *extdyn, *extdynend;
2940 size_t extdynsize;
2941 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2942
2943 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2944 return -1;
2945
2946 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2947 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2948
2949 extdyn = dynbuf;
2950 extdynend = extdyn + dynamic->size;
2951 for (; extdyn < extdynend; extdyn += extdynsize)
2952 {
2953 Elf_Internal_Dyn dyn;
2954 (*swap_dyn_in) (abfd, extdyn, &dyn);
2955
2956 if (dyn.d_tag == DT_NULL)
2957 break;
2958
2959 if (dyn.d_tag == DT_PPC_GOT)
2960 {
2961 unsigned int g_o_t = dyn.d_un.d_val;
2962 asection *got = bfd_get_section_by_name (abfd, ".got");
2963 if (got != NULL
2964 && bfd_get_section_contents (abfd, got, buf,
2965 g_o_t - got->vma + 4, 4))
2966 glink_vma = bfd_get_32 (abfd, buf);
2967 break;
2968 }
2969 }
2970 free (dynbuf);
2971 }
2972
2973 /* Otherwise we read the first plt entry. */
2974 if (glink_vma == 0)
2975 {
2976 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2977 glink_vma = bfd_get_32 (abfd, buf);
2978 }
2979
2980 if (glink_vma == 0)
2981 return 0;
2982
2983 /* The .glink section usually does not survive the final
2984 link; search for the section (usually .text) where the
2985 glink stubs now reside. */
2986 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2987 if (glink == NULL)
2988 return 0;
2989
2990 /* Determine glink PLT resolver by reading the relative branch
2991 from the first glink stub. */
2992 if (bfd_get_section_contents (abfd, glink, buf,
2993 glink_vma - glink->vma, 4))
2994 {
2995 unsigned int insn = bfd_get_32 (abfd, buf);
2996
2997 /* The first glink stub may either branch to the resolver ... */
2998 insn ^= B;
2999 if ((insn & ~0x3fffffc) == 0)
3000 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3001
3002 /* ... or fall through a bunch of NOPs. */
3003 else if ((insn ^ B ^ NOP) == 0)
3004 for (i = 4;
3005 bfd_get_section_contents (abfd, glink, buf,
3006 glink_vma - glink->vma + i, 4);
3007 i += 4)
3008 if (bfd_get_32 (abfd, buf) != NOP)
3009 {
3010 resolv_vma = glink_vma + i;
3011 break;
3012 }
3013 }
3014
7382d32a 3015 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3016 /* If the stubs are those for -shared/-pie then we might have
3017 multiple stubs for each plt entry. If that is the case then
3018 there is no way to associate stubs with their plt entries short
3019 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
3020 if (!is_nonpic_glink_stub (abfd, glink,
3021 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
3022 return 0;
3023
468392fb
AM
3024 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3025 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3026 return -1;
3027
468392fb
AM
3028 size = count * sizeof (asymbol);
3029 p = relplt->relocation;
3030 for (i = 0; i < count; i++, p++)
e054468f
AM
3031 {
3032 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3033 if (p->addend != 0)
3034 size += sizeof ("+0x") - 1 + 8;
3035 }
468392fb
AM
3036
3037 size += sizeof (asymbol) + sizeof ("__glink");
3038
3039 if (resolv_vma)
3040 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3041
3042 s = *ret = bfd_malloc (size);
3043 if (s == NULL)
3044 return -1;
3045
1079403c 3046 stub_vma = glink_vma;
468392fb 3047 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3048 p = relplt->relocation + count - 1;
3049 for (i = 0; i < count; i++)
468392fb
AM
3050 {
3051 size_t len;
3052
3053 *s = **p->sym_ptr_ptr;
3054 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3055 we are defining a symbol, ensure one of them is set. */
3056 if ((s->flags & BSF_LOCAL) == 0)
3057 s->flags |= BSF_GLOBAL;
6ba2a415 3058 s->flags |= BSF_SYNTHETIC;
468392fb 3059 s->section = glink;
1079403c
AM
3060 stub_vma -= 16;
3061 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3062 stub_vma -= 32;
468392fb
AM
3063 s->value = stub_vma - glink->vma;
3064 s->name = names;
3065 s->udata.p = NULL;
3066 len = strlen ((*p->sym_ptr_ptr)->name);
3067 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3068 names += len;
e054468f
AM
3069 if (p->addend != 0)
3070 {
3071 memcpy (names, "+0x", sizeof ("+0x") - 1);
3072 names += sizeof ("+0x") - 1;
3073 bfd_sprintf_vma (abfd, names, p->addend);
3074 names += strlen (names);
3075 }
468392fb
AM
3076 memcpy (names, "@plt", sizeof ("@plt"));
3077 names += sizeof ("@plt");
3078 ++s;
1079403c 3079 --p;
468392fb
AM
3080 }
3081
3082 /* Add a symbol at the start of the glink branch table. */
86a4952b 3083 memset (s, 0, sizeof *s);
468392fb 3084 s->the_bfd = abfd;
6ba2a415 3085 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3086 s->section = glink;
3087 s->value = glink_vma - glink->vma;
3088 s->name = names;
3089 memcpy (names, "__glink", sizeof ("__glink"));
3090 names += sizeof ("__glink");
3091 s++;
3092 count++;
3093
3094 if (resolv_vma)
3095 {
3096 /* Add a symbol for the glink PLT resolver. */
86a4952b 3097 memset (s, 0, sizeof *s);
468392fb 3098 s->the_bfd = abfd;
6ba2a415 3099 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3100 s->section = glink;
3101 s->value = resolv_vma - glink->vma;
3102 s->name = names;
3103 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3104 names += sizeof ("__glink_PLTresolve");
3105 s++;
3106 count++;
3107 }
3108
3109 return count;
3110}
3111\f
25dbc73a
AM
3112/* The following functions are specific to the ELF linker, while
3113 functions above are used generally. They appear in this file more
3114 or less in the order in which they are called. eg.
3115 ppc_elf_check_relocs is called early in the link process,
3116 ppc_elf_finish_dynamic_sections is one of the last functions
3117 called. */
252b5132 3118
a6aa5195 3119/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3120 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3121struct plt_entry
3122{
3123 struct plt_entry *next;
3124
3125 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3126 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3127 GOT pointer reg. It will always be at least 32768. (Current
3128 gcc always uses an offset of 32768, but ld -r will pack .got2
3129 sections together resulting in larger offsets). */
a6aa5195
AM
3130 bfd_vma addend;
3131
3132 /* The .got2 section. */
3133 asection *sec;
3134
3135 /* PLT refcount or offset. */
3136 union
3137 {
3138 bfd_signed_vma refcount;
3139 bfd_vma offset;
3140 } plt;
3141
3142 /* .glink stub offset. */
3143 bfd_vma glink_offset;
3144};
3145
7c8bbca5
AM
3146/* Of those relocs that might be copied as dynamic relocs, this
3147 function selects those that must be copied when linking a shared
3148 library or PIE, even when the symbol is local. */
252b5132 3149
1d483afe
AM
3150static int
3151must_be_dyn_reloc (struct bfd_link_info *info,
3152 enum elf_ppc_reloc_type r_type)
3153{
3154 switch (r_type)
3155 {
3156 default:
7c8bbca5
AM
3157 /* Only relative relocs can be resolved when the object load
3158 address isn't fixed. DTPREL32 is excluded because the
3159 dynamic linker needs to differentiate global dynamic from
3160 local dynamic __tls_index pairs when PPC_OPT_TLS is set. */
1d483afe
AM
3161 return 1;
3162
3163 case R_PPC_REL24:
3164 case R_PPC_REL14:
3165 case R_PPC_REL14_BRTAKEN:
3166 case R_PPC_REL14_BRNTAKEN:
3167 case R_PPC_REL32:
3168 return 0;
3169
3170 case R_PPC_TPREL32:
3171 case R_PPC_TPREL16:
3172 case R_PPC_TPREL16_LO:
3173 case R_PPC_TPREL16_HI:
3174 case R_PPC_TPREL16_HA:
7c8bbca5
AM
3175 /* These relocations are relative but in a shared library the
3176 linker doesn't know the thread pointer base. */
3177 return bfd_link_dll (info);
1d483afe
AM
3178 }
3179}
252b5132 3180
25dbc73a
AM
3181/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3182 copying dynamic variables from a shared lib into an app's dynbss
3183 section, and instead use a dynamic relocation to point into the
3184 shared lib. */
3185#define ELIMINATE_COPY_RELOCS 1
252b5132 3186
f95f8542
AM
3187/* Used to track dynamic relocations for local symbols. */
3188struct ppc_dyn_relocs
3189{
3190 struct ppc_dyn_relocs *next;
3191
3192 /* The input section of the reloc. */
3193 asection *sec;
3194
3195 /* Total number of relocs copied for the input section. */
3196 unsigned int count : 31;
3197
3198 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3199 unsigned int ifunc : 1;
3200};
3201
25dbc73a 3202/* PPC ELF linker hash entry. */
252b5132 3203
25dbc73a
AM
3204struct ppc_elf_link_hash_entry
3205{
3206 struct elf_link_hash_entry elf;
252b5132 3207
25dbc73a
AM
3208 /* If this symbol is used in the linker created sections, the processor
3209 specific backend uses this field to map the field into the offset
3210 from the beginning of the section. */
3211 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3212
25dbc73a 3213 /* Track dynamic relocs copied for this symbol. */
6061a67d 3214 struct elf_dyn_relocs *dyn_relocs;
252b5132 3215
25dbc73a
AM
3216 /* Contexts in which symbol is used in the GOT (or TOC).
3217 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3218 corresponding relocs are encountered during check_relocs.
3219 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3220 indicate the corresponding GOT entry type is not needed. */
3221#define TLS_GD 1 /* GD reloc. */
3222#define TLS_LD 2 /* LD reloc. */
3223#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3224#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3225#define TLS_TLS 16 /* Any TLS reloc. */
3226#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3227#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3228 char tls_mask;
4dc4a9a5
DJ
3229
3230 /* Nonzero if we have seen a small data relocation referring to this
3231 symbol. */
d3e454b9
AM
3232 unsigned char has_sda_refs : 1;
3233
3234 /* Flag use of given relocations. */
3235 unsigned char has_addr16_ha : 1;
3236 unsigned char has_addr16_lo : 1;
25dbc73a 3237};
252b5132 3238
25dbc73a
AM
3239#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3240
3241/* PPC ELF linker hash table. */
3242
3243struct ppc_elf_link_hash_table
3244{
3245 struct elf_link_hash_table elf;
3246
5446cbdf
AM
3247 /* Various options passed from the linker. */
3248 struct ppc_elf_params *params;
3249
25dbc73a 3250 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3251 asection *glink;
25dbc73a
AM
3252 asection *dynsbss;
3253 asection *relsbss;
c9a2f333 3254 elf_linker_section_t sdata[2];
25dbc73a 3255 asection *sbss;
6177242a 3256 asection *glink_eh_frame;
25dbc73a 3257
016687f8
AM
3258 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3259 asection *srelplt2;
3260
1d483afe 3261 /* Shortcut to __tls_get_addr. */
25dbc73a 3262 struct elf_link_hash_entry *tls_get_addr;
252b5132 3263
016687f8
AM
3264 /* The bfd that forced an old-style PLT. */
3265 bfd *old_bfd;
5b914448 3266
25dbc73a
AM
3267 /* TLS local dynamic got entry handling. */
3268 union {
3269 bfd_signed_vma refcount;
3270 bfd_vma offset;
3271 } tlsld_got;
252b5132 3272
c6dd29ce 3273 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3274 bfd_vma glink_pltresolve;
3275
3b36f7e6
AM
3276 /* Size of reserved GOT entries. */
3277 unsigned int got_header_size;
3278 /* Non-zero if allocating the header left a gap. */
3279 unsigned int got_gap;
3280
4a3dc543
RS
3281 /* The type of PLT we have chosen to use. */
3282 enum ppc_elf_plt_type plt_type;
3283
9d8504b1 3284 /* True if the target system is VxWorks. */
016687f8 3285 unsigned int is_vxworks:1;
9d8504b1 3286
82e66161
AM
3287 /* Whether there exist local gnu indirect function resolvers,
3288 referenced by dynamic relocations. */
3289 unsigned int local_ifunc_resolver:1;
3290 unsigned int maybe_local_ifunc_resolver:1;
3291
9a23f96e
AM
3292 /* Set if tls optimization is enabled. */
3293 unsigned int do_tls_opt:1;
3294
9d8504b1
PB
3295 /* The size of PLT entries. */
3296 int plt_entry_size;
3297 /* The distance between adjacent PLT slots. */
3298 int plt_slot_size;
3299 /* The size of the first PLT entry. */
3300 int plt_initial_entry_size;
016687f8 3301
87d72d41
AM
3302 /* Small local sym cache. */
3303 struct sym_cache sym_cache;
25dbc73a 3304};
252b5132 3305
94caa966
AM
3306/* Rename some of the generic section flags to better document how they
3307 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3308
3309/* Nonzero if this section has TLS related relocations. */
3310#define has_tls_reloc sec_flg0
3311
3312/* Nonzero if this section has a call to __tls_get_addr. */
3313#define has_tls_get_addr_call sec_flg1
3314
25dbc73a 3315/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3316
25dbc73a 3317#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3318 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3319 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3320
25dbc73a 3321/* Create an entry in a PPC ELF linker hash table. */
252b5132 3322
25dbc73a
AM
3323static struct bfd_hash_entry *
3324ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3325 struct bfd_hash_table *table,
3326 const char *string)
252b5132 3327{
25dbc73a
AM
3328 /* Allocate the structure if it has not already been allocated by a
3329 subclass. */
3330 if (entry == NULL)
3331 {
3332 entry = bfd_hash_allocate (table,
3333 sizeof (struct ppc_elf_link_hash_entry));
3334 if (entry == NULL)
3335 return entry;
3336 }
252b5132 3337
25dbc73a
AM
3338 /* Call the allocation method of the superclass. */
3339 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3340 if (entry != NULL)
3341 {
3342 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3343 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3344 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3345 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3346 }
252b5132 3347
25dbc73a 3348 return entry;
252b5132 3349}
3dab13f6 3350
25dbc73a 3351/* Create a PPC ELF linker hash table. */
3dab13f6 3352
25dbc73a
AM
3353static struct bfd_link_hash_table *
3354ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3355{
25dbc73a 3356 struct ppc_elf_link_hash_table *ret;
76e7a751 3357 static struct ppc_elf_params default_params
08dc996f 3358 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3359
25dbc73a
AM
3360 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3361 if (ret == NULL)
3362 return NULL;
3dab13f6 3363
66eb6687
AM
3364 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3365 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3366 sizeof (struct ppc_elf_link_hash_entry),
3367 PPC32_ELF_DATA))
3dab13f6 3368 {
25dbc73a
AM
3369 free (ret);
3370 return NULL;
3371 }
58111eb7 3372
a6aa5195
AM
3373 ret->elf.init_plt_refcount.refcount = 0;
3374 ret->elf.init_plt_refcount.glist = NULL;
3375 ret->elf.init_plt_offset.offset = 0;
3376 ret->elf.init_plt_offset.glist = NULL;
3377
db434ba0
AM
3378 ret->params = &default_params;
3379
c9a2f333
AM
3380 ret->sdata[0].name = ".sdata";
3381 ret->sdata[0].sym_name = "_SDA_BASE_";
3382 ret->sdata[0].bss_name = ".sbss";
3383
3384 ret->sdata[1].name = ".sdata2";
3385 ret->sdata[1].sym_name = "_SDA2_BASE_";
3386 ret->sdata[1].bss_name = ".sbss2";
3387
9d8504b1
PB
3388 ret->plt_entry_size = 12;
3389 ret->plt_slot_size = 8;
3390 ret->plt_initial_entry_size = 72;
9d8504b1 3391
25dbc73a
AM
3392 return &ret->elf.root;
3393}
3dab13f6 3394
5446cbdf
AM
3395/* Hook linker params into hash table. */
3396
3397void
3398ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3399{
3400 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3401
3402 if (htab)
3403 htab->params = params;
76e7a751 3404 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3405}
3406
9d8504b1 3407/* Create .got and the related sections. */
3dab13f6 3408
25dbc73a
AM
3409static bfd_boolean
3410ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3411{
3412 struct ppc_elf_link_hash_table *htab;
3dab13f6 3413
25dbc73a
AM
3414 if (!_bfd_elf_create_got_section (abfd, info))
3415 return FALSE;
3dab13f6 3416
25dbc73a 3417 htab = ppc_elf_hash_table (info);
ce558b89 3418 if (!htab->is_vxworks)
9d8504b1
PB
3419 {
3420 /* The powerpc .got has a blrl instruction in it. Mark it
3421 executable. */
ce558b89
AM
3422 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3423 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3424 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3425 return FALSE;
3426 }
3dab13f6 3427
25dbc73a
AM
3428 return TRUE;
3429}
3dab13f6 3430
93d1b056
AM
3431/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3432 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3433 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3434
3435static bfd_boolean
3436ppc_elf_create_linker_section (bfd *abfd,
3437 struct bfd_link_info *info,
3438 flagword flags,
3439 elf_linker_section_t *lsect)
3440{
3441 asection *s;
3442
3443 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3444 | SEC_LINKER_CREATED);
3445
3446 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3447 if (s == NULL)
3448 return FALSE;
3449 lsect->section = s;
3450
3451 /* Define the sym on the first section of this name. */
3452 s = bfd_get_section_by_name (abfd, lsect->name);
3453
3454 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3455 if (lsect->sym == NULL)
3456 return FALSE;
3457 lsect->sym->root.u.def.value = 0x8000;
3458 return TRUE;
3459}
3460
e054468f
AM
3461static bfd_boolean
3462ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3463{
3464 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3465 asection *s;
3466 flagword flags;
3467
3468 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3469 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3470 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3471 htab->glink = s;
3472 if (s == NULL
5446cbdf
AM
3473 || !bfd_set_section_alignment (abfd, s,
3474 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3475 return FALSE;
3476
6177242a
AM
3477 if (!info->no_ld_generated_unwind_info)
3478 {
3479 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3480 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3481 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3482 htab->glink_eh_frame = s;
3483 if (s == NULL
3484 || !bfd_set_section_alignment (abfd, s, 2))
3485 return FALSE;
3486 }
3487
e054468f
AM
3488 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3489 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3490 htab->elf.iplt = s;
e054468f
AM
3491 if (s == NULL
3492 || !bfd_set_section_alignment (abfd, s, 4))
3493 return FALSE;
3494
3495 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3496 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3497 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3498 htab->elf.irelplt = s;
e054468f
AM
3499 if (s == NULL
3500 || ! bfd_set_section_alignment (abfd, s, 2))
3501 return FALSE;
93d1b056
AM
3502
3503 if (!ppc_elf_create_linker_section (abfd, info, 0,
3504 &htab->sdata[0]))
3505 return FALSE;
3506
3507 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3508 &htab->sdata[1]))
3509 return FALSE;
3510
e054468f
AM
3511 return TRUE;
3512}
3513
25dbc73a
AM
3514/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3515 to output sections (just like _bfd_elf_create_dynamic_sections has
3516 to create .dynbss and .rela.bss). */
3dab13f6 3517
25dbc73a
AM
3518static bfd_boolean
3519ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3520{
3521 struct ppc_elf_link_hash_table *htab;
3522 asection *s;
3523 flagword flags;
3dab13f6 3524
25dbc73a 3525 htab = ppc_elf_hash_table (info);
3dab13f6 3526
ce558b89 3527 if (htab->elf.sgot == NULL
25dbc73a 3528 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3529 return FALSE;
3530
25dbc73a
AM
3531 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3532 return FALSE;
3dab13f6 3533
e054468f
AM
3534 if (htab->glink == NULL
3535 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3536 return FALSE;
3dab13f6 3537
14b2f831
AM
3538 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3539 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3540 htab->dynsbss = s;
3496cb2a 3541 if (s == NULL)
25dbc73a 3542 return FALSE;
3dab13f6 3543
0e1862bb 3544 if (! bfd_link_pic (info))
25dbc73a 3545 {
e054468f
AM
3546 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3547 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3548 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3549 htab->relsbss = s;
25dbc73a 3550 if (s == NULL
25dbc73a
AM
3551 || ! bfd_set_section_alignment (abfd, s, 2))
3552 return FALSE;
3553 }
3dab13f6 3554
711de32c
RS
3555 if (htab->is_vxworks
3556 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3557 return FALSE;
9d8504b1 3558
ce558b89 3559 s = htab->elf.splt;
3b36f7e6 3560 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3561 if (htab->plt_type == PLT_VXWORKS)
3562 /* The VxWorks PLT is a loaded section with contents. */
3563 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3564 return bfd_set_section_flags (abfd, s, flags);
3565}
3dab13f6 3566
25dbc73a 3567/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3568
25dbc73a 3569static void
fcfa13d2 3570ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3571 struct elf_link_hash_entry *dir,
3572 struct elf_link_hash_entry *ind)
3573{
3574 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3575
25dbc73a
AM
3576 edir = (struct ppc_elf_link_hash_entry *) dir;
3577 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3578
c79d6685
AM
3579 edir->tls_mask |= eind->tls_mask;
3580 edir->has_sda_refs |= eind->has_sda_refs;
3581
3582 /* If called to transfer flags for a weakdef during processing
3583 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3584 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3585 if (!(ELIMINATE_COPY_RELOCS
3586 && eind->elf.root.type != bfd_link_hash_indirect
3587 && edir->elf.dynamic_adjusted))
3588 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3589
e81830c5
AM
3590 if (edir->elf.versioned != versioned_hidden)
3591 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3592 edir->elf.ref_regular |= eind->elf.ref_regular;
3593 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3594 edir->elf.needs_plt |= eind->elf.needs_plt;
3595 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3596
25dbc73a
AM
3597 if (eind->dyn_relocs != NULL)
3598 {
3599 if (edir->dyn_relocs != NULL)
3dab13f6 3600 {
6061a67d
AM
3601 struct elf_dyn_relocs **pp;
3602 struct elf_dyn_relocs *p;
3dab13f6 3603
fcfa13d2 3604 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3605 list. Merge any entries against the same section. */
3606 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3607 {
6061a67d 3608 struct elf_dyn_relocs *q;
25dbc73a
AM
3609
3610 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3611 if (q->sec == p->sec)
3612 {
3613 q->pc_count += p->pc_count;
3614 q->count += p->count;
3615 *pp = p->next;
3616 break;
3617 }
3618 if (q == NULL)
3619 pp = &p->next;
3dab13f6 3620 }
25dbc73a 3621 *pp = edir->dyn_relocs;
3dab13f6 3622 }
25dbc73a
AM
3623
3624 edir->dyn_relocs = eind->dyn_relocs;
3625 eind->dyn_relocs = NULL;
3dab13f6 3626 }
3dab13f6 3627
68ba6d40
AM
3628 /* If we were called to copy over info for a weak sym, that's all.
3629 You might think dyn_relocs need not be copied over; After all,
3630 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3631 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3632 code in ppc_elf_adjust_dynamic_symbol needs to check for
3633 dyn_relocs in read-only sections, and it does so on what is the
3634 DIR sym here. */
3635 if (eind->elf.root.type != bfd_link_hash_indirect)
3636 return;
3637
a6aa5195
AM
3638 /* Copy over the GOT refcount entries that we may have already seen to
3639 the symbol which just became indirect. */
fcfa13d2
AM
3640 edir->elf.got.refcount += eind->elf.got.refcount;
3641 eind->elf.got.refcount = 0;
a6aa5195
AM
3642
3643 /* And plt entries. */
3644 if (eind->elf.plt.plist != NULL)
3645 {
3646 if (edir->elf.plt.plist != NULL)
3647 {
3648 struct plt_entry **entp;
3649 struct plt_entry *ent;
3650
3651 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3652 {
3653 struct plt_entry *dent;
3654
3655 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3656 if (dent->sec == ent->sec && dent->addend == ent->addend)
3657 {
3658 dent->plt.refcount += ent->plt.refcount;
3659 *entp = ent->next;
3660 break;
3661 }
3662 if (dent == NULL)
3663 entp = &ent->next;
3664 }
3665 *entp = edir->elf.plt.plist;
3666 }
3667
3668 edir->elf.plt.plist = eind->elf.plt.plist;
3669 eind->elf.plt.plist = NULL;
3670 }
3671
fcfa13d2 3672 if (eind->elf.dynindx != -1)
25dbc73a 3673 {
fcfa13d2
AM
3674 if (edir->elf.dynindx != -1)
3675 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3676 edir->elf.dynstr_index);
a6aa5195
AM
3677 edir->elf.dynindx = eind->elf.dynindx;
3678 edir->elf.dynstr_index = eind->elf.dynstr_index;
3679 eind->elf.dynindx = -1;
3680 eind->elf.dynstr_index = 0;
25dbc73a 3681 }
25dbc73a 3682}
3dab13f6 3683
25dbc73a
AM
3684/* Hook called by the linker routine which adds symbols from an object
3685 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3686
25dbc73a
AM
3687static bfd_boolean
3688ppc_elf_add_symbol_hook (bfd *abfd,
3689 struct bfd_link_info *info,
3690 Elf_Internal_Sym *sym,
3691 const char **namep ATTRIBUTE_UNUSED,
3692 flagword *flagsp ATTRIBUTE_UNUSED,
3693 asection **secp,
3694 bfd_vma *valp)
3695{
3696 if (sym->st_shndx == SHN_COMMON
0e1862bb 3697 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3698 && is_ppc_elf (info->output_bfd)
3699 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3700 {
3701 /* Common symbols less than or equal to -G nn bytes are automatically
3702 put into .sbss. */
3703 struct ppc_elf_link_hash_table *htab;
3dab13f6 3704
25dbc73a
AM
3705 htab = ppc_elf_hash_table (info);
3706 if (htab->sbss == NULL)
3707 {
644285ef 3708 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3709
644285ef
AM
3710 if (!htab->elf.dynobj)
3711 htab->elf.dynobj = abfd;
3712
3496cb2a
L
3713 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3714 ".sbss",
3715 flags);
3716 if (htab->sbss == NULL)
25dbc73a 3717 return FALSE;
3dab13f6 3718 }
3dab13f6 3719
25dbc73a
AM
3720 *secp = htab->sbss;
3721 *valp = sym->st_size;
3722 }
3dab13f6 3723
a43942db 3724 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3725 && (abfd->flags & DYNAMIC) == 0
3726 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3727 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3728
25dbc73a 3729 return TRUE;
3dab13f6
AM
3730}
3731\f
25dbc73a
AM
3732/* Find a linker generated pointer with a given addend and type. */
3733
3734static elf_linker_section_pointers_t *
3735elf_find_pointer_linker_section
3736 (elf_linker_section_pointers_t *linker_pointers,
3737 bfd_vma addend,
3738 elf_linker_section_t *lsect)
252b5132 3739{
25dbc73a
AM
3740 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3741 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3742 return linker_pointers;
252b5132 3743
25dbc73a
AM
3744 return NULL;
3745}
3746
3747/* Allocate a pointer to live in a linker created section. */
3748
3749static bfd_boolean
93d1b056
AM
3750elf_allocate_pointer_linker_section (bfd *abfd,
3751 elf_linker_section_t *lsect,
3752 struct elf_link_hash_entry *h,
3753 const Elf_Internal_Rela *rel)
25dbc73a
AM
3754{
3755 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3756 elf_linker_section_pointers_t *linker_section_ptr;
3757 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3758 bfd_size_type amt;
3759
3760 BFD_ASSERT (lsect != NULL);
3761
3762 /* Is this a global symbol? */
3763 if (h != NULL)
3764 {
3765 struct ppc_elf_link_hash_entry *eh;
3766
3767 /* Has this symbol already been allocated? If so, our work is done. */
3768 eh = (struct ppc_elf_link_hash_entry *) h;
3769 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3770 rel->r_addend,
3771 lsect))
3772 return TRUE;
3773
3774 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3775 }
3776 else
3777 {
0c8d6e5c 3778 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3779
25dbc73a
AM
3780 /* Allocation of a pointer to a local symbol. */
3781 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3782
3783 /* Allocate a table to hold the local symbols if first time. */
3784 if (!ptr)
3785 {
0ffa91dd 3786 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3787
3788 amt = num_symbols;
3789 amt *= sizeof (elf_linker_section_pointers_t *);
3790 ptr = bfd_zalloc (abfd, amt);
3791
3792 if (!ptr)
3793 return FALSE;
3794
3795 elf_local_ptr_offsets (abfd) = ptr;
3796 }
3797
3798 /* Has this symbol already been allocated? If so, our work is done. */
3799 if (elf_find_pointer_linker_section (ptr[r_symndx],
3800 rel->r_addend,
3801 lsect))
3802 return TRUE;
252b5132 3803
25dbc73a 3804 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3805 }
41fcb14e 3806
25dbc73a
AM
3807 /* Allocate space for a pointer in the linker section, and allocate
3808 a new pointer record from internal memory. */
3809 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3810 amt = sizeof (elf_linker_section_pointers_t);
3811 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3812
25dbc73a 3813 if (!linker_section_ptr)
7619e7c7 3814 return FALSE;
41fcb14e 3815
25dbc73a
AM
3816 linker_section_ptr->next = *ptr_linker_section_ptr;
3817 linker_section_ptr->addend = rel->r_addend;
3818 linker_section_ptr->lsect = lsect;
25dbc73a 3819 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3820
93d1b056
AM
3821 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3822 return FALSE;
25dbc73a
AM
3823 linker_section_ptr->offset = lsect->section->size;
3824 lsect->section->size += 4;
7619e7c7 3825
25dbc73a
AM
3826#ifdef DEBUG
3827 fprintf (stderr,
3828 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3829 lsect->name, (long) linker_section_ptr->offset,
3830 (long) lsect->section->size);
3831#endif
7619e7c7
AM
3832
3833 return TRUE;
41fcb14e
AM
3834}
3835
e054468f 3836static struct plt_entry **
25dbc73a
AM
3837update_local_sym_info (bfd *abfd,
3838 Elf_Internal_Shdr *symtab_hdr,
3839 unsigned long r_symndx,
3840 int tls_type)
252b5132 3841{
25dbc73a 3842 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3843 struct plt_entry **local_plt;
25dbc73a 3844 char *local_got_tls_masks;
252b5132 3845
25dbc73a 3846 if (local_got_refcounts == NULL)
252b5132 3847 {
25dbc73a
AM
3848 bfd_size_type size = symtab_hdr->sh_info;
3849
e054468f
AM
3850 size *= (sizeof (*local_got_refcounts)
3851 + sizeof (*local_plt)
3852 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3853 local_got_refcounts = bfd_zalloc (abfd, size);
3854 if (local_got_refcounts == NULL)
e054468f 3855 return NULL;
25dbc73a 3856 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3857 }
41fcb14e 3858
e054468f
AM
3859 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3860 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3861 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3862 if (tls_type != PLT_IFUNC)
3863 local_got_refcounts[r_symndx] += 1;
3864 return local_plt + r_symndx;
25dbc73a 3865}
41fcb14e 3866
a6aa5195 3867static bfd_boolean
3ec01793 3868update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3869 asection *sec, bfd_vma addend)
3870{
3871 struct plt_entry *ent;
3872
32af9f6e
AM
3873 if (addend < 32768)
3874 sec = NULL;
3ec01793 3875 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3876 if (ent->sec == sec && ent->addend == addend)
3877 break;
3878 if (ent == NULL)
3879 {
3880 bfd_size_type amt = sizeof (*ent);
3881 ent = bfd_alloc (abfd, amt);
3882 if (ent == NULL)
3883 return FALSE;
3ec01793 3884 ent->next = *plist;
a6aa5195
AM
3885 ent->sec = sec;
3886 ent->addend = addend;
3887 ent->plt.refcount = 0;
3ec01793 3888 *plist = ent;
a6aa5195
AM
3889 }
3890 ent->plt.refcount += 1;
3891 return TRUE;
3892}
3893
3894static struct plt_entry *
3ec01793 3895find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3896{
3897 struct plt_entry *ent;
3898
3899 if (addend < 32768)
3900 sec = NULL;
3ec01793 3901 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3902 if (ent->sec == sec && ent->addend == addend)
3903 break;
3904 return ent;
3905}
3906
e054468f
AM
3907static bfd_boolean
3908is_branch_reloc (enum elf_ppc_reloc_type r_type)
3909{
3910 return (r_type == R_PPC_PLTREL24
3911 || r_type == R_PPC_LOCAL24PC
3912 || r_type == R_PPC_REL24
3913 || r_type == R_PPC_REL14
3914 || r_type == R_PPC_REL14_BRTAKEN
3915 || r_type == R_PPC_REL14_BRNTAKEN
3916 || r_type == R_PPC_ADDR24
3917 || r_type == R_PPC_ADDR14
3918 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3919 || r_type == R_PPC_ADDR14_BRNTAKEN
3920 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3921}
3922
25dbc73a
AM
3923static void
3924bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3925{
4eca0228 3926 _bfd_error_handler
695344c0 3927 /* xgettext:c-format */
25dbc73a
AM
3928 (_("%B: relocation %s cannot be used when making a shared object"),
3929 abfd,
3930 ppc_elf_howto_table[r_type]->name);
3931 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3932}
3933
25dbc73a
AM
3934/* Look through the relocs for a section during the first phase, and
3935 allocate space in the global offset table or procedure linkage
3936 table. */
252b5132 3937
b34976b6 3938static bfd_boolean
25dbc73a
AM
3939ppc_elf_check_relocs (bfd *abfd,
3940 struct bfd_link_info *info,
3941 asection *sec,
3942 const Elf_Internal_Rela *relocs)
252b5132 3943{
7619e7c7 3944 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3945 Elf_Internal_Shdr *symtab_hdr;
3946 struct elf_link_hash_entry **sym_hashes;
3947 const Elf_Internal_Rela *rel;
3948 const Elf_Internal_Rela *rel_end;
a6aa5195 3949 asection *got2, *sreloc;
727fc41e 3950 struct elf_link_hash_entry *tga;
25dbc73a 3951
0e1862bb 3952 if (bfd_link_relocatable (info))
25dbc73a 3953 return TRUE;
252b5132 3954
c87b5a93
AM
3955 /* Don't do anything special with non-loaded, non-alloced sections.
3956 In particular, any relocs in such sections should not affect GOT
3957 and PLT reference counting (ie. we don't allow them to create GOT
3958 or PLT entries), there's no possibility or desire to optimize TLS
3959 relocs, and there's not much point in propagating relocs to shared
3960 libs that the dynamic linker won't relocate. */
3961 if ((sec->flags & SEC_ALLOC) == 0)
3962 return TRUE;
3963
252b5132 3964#ifdef DEBUG
25dbc73a
AM
3965 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3966 sec, abfd);
252b5132
RH
3967#endif
3968
0c8d6e5c 3969 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3970
25dbc73a
AM
3971 /* Initialize howto table if not already done. */
3972 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3973 ppc_elf_howto_init ();
3974
7619e7c7 3975 htab = ppc_elf_hash_table (info);
25f23106
AM
3976 if (htab->glink == NULL)
3977 {
3978 if (htab->elf.dynobj == NULL)
3979 htab->elf.dynobj = abfd;
3980 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3981 return FALSE;
3982 }
727fc41e
AM
3983 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3984 FALSE, FALSE, TRUE);
0ffa91dd 3985 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3986 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3987 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3988 sreloc = NULL;
3989
3990 rel_end = relocs + sec->reloc_count;
3991 for (rel = relocs; rel < rel_end; rel++)
3992 {
3993 unsigned long r_symndx;
3994 enum elf_ppc_reloc_type r_type;
3995 struct elf_link_hash_entry *h;
727fc41e 3996 int tls_type;
cbf95972 3997 struct plt_entry **ifunc;
25dbc73a
AM
3998
3999 r_symndx = ELF32_R_SYM (rel->r_info);
4000 if (r_symndx < symtab_hdr->sh_info)
4001 h = NULL;
4002 else
973a3492
L
4003 {
4004 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4005 while (h->root.type == bfd_link_hash_indirect
4006 || h->root.type == bfd_link_hash_warning)
4007 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4008
4009 /* PR15323, ref flags aren't set for references in the same
4010 object. */
bc4e12de 4011 h->root.non_ir_ref_regular = 1;
973a3492 4012 }
25dbc73a
AM
4013
4014 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4015 This shows up in particular in an R_PPC_ADDR32 in the eabi
4016 startup code. */
3b36f7e6 4017 if (h != NULL
ce558b89 4018 && htab->elf.sgot == NULL
3b36f7e6 4019 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4020 {
3b36f7e6
AM
4021 if (htab->elf.dynobj == NULL)
4022 htab->elf.dynobj = abfd;
4023 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4024 return FALSE;
4025 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4026 }
252b5132 4027
727fc41e 4028 tls_type = 0;
de972ffa 4029 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4030 ifunc = NULL;
06a162cf 4031 if (h == NULL && !htab->is_vxworks)
e054468f 4032 {
06a162cf
AM
4033 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4034 abfd, r_symndx);
4035 if (isym == NULL)
4036 return FALSE;
4037
0bed072f 4038 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4039 {
0bed072f 4040 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4041 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4042 PLT_IFUNC);
4043 if (ifunc == NULL)
e054468f
AM
4044 return FALSE;
4045
06a162cf
AM
4046 /* STT_GNU_IFUNC symbols must have a PLT entry;
4047 In a non-pie executable even when there are
4048 no plt calls. */
0e1862bb 4049 if (!bfd_link_pic (info)
0bed072f 4050 || is_branch_reloc (r_type))
e054468f 4051 {
0bed072f
AM
4052 bfd_vma addend = 0;
4053 if (r_type == R_PPC_PLTREL24)
4054 {
4055 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4056 if (bfd_link_pic (info))
0bed072f
AM
4057 addend = rel->r_addend;
4058 }
4059 if (!update_plt_info (abfd, ifunc, got2, addend))
4060 return FALSE;
e054468f
AM
4061 }
4062 }
25f23106
AM
4063 }
4064
de972ffa
AM
4065 if (!htab->is_vxworks
4066 && is_branch_reloc (r_type)
4067 && h != NULL
4068 && h == tga)
25f23106 4069 {
de972ffa
AM
4070 if (rel != relocs
4071 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4072 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4073 /* We have a new-style __tls_get_addr call with a marker
4074 reloc. */
4075 ;
4076 else
4077 /* Mark this section as having an old-style call. */
4078 sec->has_tls_get_addr_call = 1;
e054468f 4079 }
727fc41e 4080
25dbc73a
AM
4081 switch (r_type)
4082 {
727fc41e
AM
4083 case R_PPC_TLSGD:
4084 case R_PPC_TLSLD:
4085 /* These special tls relocs tie a call to __tls_get_addr with
4086 its parameter symbol. */
4087 break;
4088
25dbc73a
AM
4089 case R_PPC_GOT_TLSLD16:
4090 case R_PPC_GOT_TLSLD16_LO:
4091 case R_PPC_GOT_TLSLD16_HI:
4092 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4093 tls_type = TLS_TLS | TLS_LD;
4094 goto dogottls;
252b5132 4095
25dbc73a
AM
4096 case R_PPC_GOT_TLSGD16:
4097 case R_PPC_GOT_TLSGD16_LO:
4098 case R_PPC_GOT_TLSGD16_HI:
4099 case R_PPC_GOT_TLSGD16_HA:
4100 tls_type = TLS_TLS | TLS_GD;
4101 goto dogottls;
4102
4103 case R_PPC_GOT_TPREL16:
4104 case R_PPC_GOT_TPREL16_LO:
4105 case R_PPC_GOT_TPREL16_HI:
4106 case R_PPC_GOT_TPREL16_HA:
7c8bbca5 4107 if (bfd_link_dll (info))
25dbc73a
AM
4108 info->flags |= DF_STATIC_TLS;
4109 tls_type = TLS_TLS | TLS_TPREL;
4110 goto dogottls;
4111
4112 case R_PPC_GOT_DTPREL16:
4113 case R_PPC_GOT_DTPREL16_LO:
4114 case R_PPC_GOT_DTPREL16_HI:
4115 case R_PPC_GOT_DTPREL16_HA:
4116 tls_type = TLS_TLS | TLS_DTPREL;
4117 dogottls:
4118 sec->has_tls_reloc = 1;
1a0670f3 4119 /* Fall through. */
252b5132 4120
25dbc73a
AM
4121 /* GOT16 relocations */
4122 case R_PPC_GOT16:
4123 case R_PPC_GOT16_LO:
4124 case R_PPC_GOT16_HI:
4125 case R_PPC_GOT16_HA:
4126 /* This symbol requires a global offset table entry. */
ce558b89 4127 if (htab->elf.sgot == NULL)
25dbc73a
AM
4128 {
4129 if (htab->elf.dynobj == NULL)
4130 htab->elf.dynobj = abfd;
4131 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4132 return FALSE;
4133 }
4134 if (h != NULL)
4135 {
4136 h->got.refcount += 1;
4137 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4138 }
4139 else
4140 /* This is a global offset table entry for a local symbol. */
4141 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4142 return FALSE;
91e21fb7
AM
4143
4144 /* We may also need a plt entry if the symbol turns out to be
4145 an ifunc. */
0e1862bb 4146 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4147 {
4148 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4149 return FALSE;
4150 }
25dbc73a 4151 break;
252b5132 4152
25dbc73a
AM
4153 /* Indirect .sdata relocation. */
4154 case R_PPC_EMB_SDAI16:
0e1862bb 4155 if (bfd_link_pic (info))
25dbc73a
AM
4156 {
4157 bad_shared_reloc (abfd, r_type);
4158 return FALSE;
4159 }
93d1b056
AM
4160 htab->sdata[0].sym->ref_regular = 1;
4161 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4162 h, rel))
25dbc73a 4163 return FALSE;
046183de
AM
4164 if (h != NULL)
4165 {
4166 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4167 h->non_got_ref = TRUE;
4168 }
25dbc73a 4169 break;
252b5132 4170
25dbc73a
AM
4171 /* Indirect .sdata2 relocation. */
4172 case R_PPC_EMB_SDA2I16:
0e1862bb 4173 if (bfd_link_pic (info))
25dbc73a
AM
4174 {
4175 bad_shared_reloc (abfd, r_type);
4176 return FALSE;
4177 }
93d1b056
AM
4178 htab->sdata[1].sym->ref_regular = 1;
4179 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4180 h, rel))
25dbc73a 4181 return FALSE;
046183de
AM
4182 if (h != NULL)
4183 {
4184 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4185 h->non_got_ref = TRUE;
4186 }
25dbc73a 4187 break;
252b5132 4188
93d1b056
AM
4189 case R_PPC_SDAREL16:
4190 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4191 /* Fall through. */
93d1b056 4192
b9c361e0
JL
4193 case R_PPC_VLE_SDAREL_LO16A:
4194 case R_PPC_VLE_SDAREL_LO16D:
4195 case R_PPC_VLE_SDAREL_HI16A:
4196 case R_PPC_VLE_SDAREL_HI16D:
4197 case R_PPC_VLE_SDAREL_HA16A:
4198 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4199 if (h != NULL)
4200 {
4201 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4202 h->non_got_ref = TRUE;
4203 }
4204 break;
4205
b9c361e0
JL
4206 case R_PPC_VLE_REL8:
4207 case R_PPC_VLE_REL15:
4208 case R_PPC_VLE_REL24:
4209 case R_PPC_VLE_LO16A:
4210 case R_PPC_VLE_LO16D:
4211 case R_PPC_VLE_HI16A:
4212 case R_PPC_VLE_HI16D:
4213 case R_PPC_VLE_HA16A:
4214 case R_PPC_VLE_HA16D:
83eef883 4215 case R_PPC_VLE_ADDR20:
b9c361e0
JL
4216 break;
4217
25dbc73a 4218 case R_PPC_EMB_SDA2REL:
0e1862bb 4219 if (bfd_link_pic (info))
046183de
AM
4220 {
4221 bad_shared_reloc (abfd, r_type);
4222 return FALSE;
4223 }
93d1b056 4224 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4225 if (h != NULL)
4226 {
4227 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4228 h->non_got_ref = TRUE;
4229 }
4230 break;
4231
b9c361e0
JL
4232 case R_PPC_VLE_SDA21_LO:
4233 case R_PPC_VLE_SDA21:
25dbc73a
AM
4234 case R_PPC_EMB_SDA21:
4235 case R_PPC_EMB_RELSDA:
0e1862bb 4236 if (bfd_link_pic (info))
046183de
AM
4237 {
4238 bad_shared_reloc (abfd, r_type);
4239 return FALSE;
4240 }
046183de
AM
4241 if (h != NULL)
4242 {
4243 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4244 h->non_got_ref = TRUE;
4245 }
4246 break;
4247
25dbc73a
AM
4248 case R_PPC_EMB_NADDR32:
4249 case R_PPC_EMB_NADDR16:
4250 case R_PPC_EMB_NADDR16_LO:
4251 case R_PPC_EMB_NADDR16_HI:
4252 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4253 if (bfd_link_pic (info))
25dbc73a
AM
4254 {
4255 bad_shared_reloc (abfd, r_type);
4256 return FALSE;
4257 }
4dc4a9a5 4258 if (h != NULL)
046183de 4259 h->non_got_ref = TRUE;
25dbc73a 4260 break;
252b5132 4261
25dbc73a 4262 case R_PPC_PLTREL24:
de972ffa 4263 if (h == NULL)
6d78d0b9
AM
4264 break;
4265 /* Fall through */
4266 case R_PPC_PLT32:
25dbc73a
AM
4267 case R_PPC_PLTREL32:
4268 case R_PPC_PLT16_LO:
4269 case R_PPC_PLT16_HI:
4270 case R_PPC_PLT16_HA:
4271#ifdef DEBUG
4272 fprintf (stderr, "Reloc requires a PLT entry\n");
4273#endif
cbf95972 4274 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4275 if (h == NULL)
4276 {
cbf95972
AM
4277 if (ifunc == NULL)
4278 {
4279 /* It does not make sense to have a procedure linkage
4280 table entry for a non-ifunc local symbol. */
4281 info->callbacks->einfo
695344c0 4282 /* xgettext:c-format */
174d0a74 4283 (_("%H: %s reloc against local symbol\n"),
cbf95972
AM
4284 abfd, sec, rel->r_offset,
4285 ppc_elf_howto_table[r_type]->name);
4286 bfd_set_error (bfd_error_bad_value);
4287 return FALSE;
4288 }
25dbc73a 4289 }
a6aa5195
AM
4290 else
4291 {
016687f8 4292 bfd_vma addend = 0;
ee05f2fe 4293
016687f8
AM
4294 if (r_type == R_PPC_PLTREL24)
4295 {
4296 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4297 if (bfd_link_pic (info))
a877a2b6 4298 addend = rel->r_addend;
016687f8 4299 }
a6aa5195 4300 h->needs_plt = 1;
32af9f6e 4301 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4302 return FALSE;
4303 }
25dbc73a 4304 break;
ee05f2fe 4305
25dbc73a
AM
4306 /* The following relocations don't need to propagate the
4307 relocation if linking a shared object since they are
4308 section relative. */
4309 case R_PPC_SECTOFF:
4310 case R_PPC_SECTOFF_LO:
4311 case R_PPC_SECTOFF_HI:
4312 case R_PPC_SECTOFF_HA:
4313 case R_PPC_DTPREL16:
4314 case R_PPC_DTPREL16_LO:
4315 case R_PPC_DTPREL16_HI:
4316 case R_PPC_DTPREL16_HA:
4317 case R_PPC_TOC16:
4318 break;
252b5132 4319
d7128ce4
AM
4320 case R_PPC_REL16:
4321 case R_PPC_REL16_LO:
4322 case R_PPC_REL16_HI:
4323 case R_PPC_REL16_HA:
a680de9a 4324 case R_PPC_REL16DX_HA:
016687f8 4325 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4326 break;
4327
a6aa5195 4328 /* These are just markers. */
25dbc73a
AM
4329 case R_PPC_TLS:
4330 case R_PPC_EMB_MRKREF:
4331 case R_PPC_NONE:
4332 case R_PPC_max:
32af9f6e
AM
4333 case R_PPC_RELAX:
4334 case R_PPC_RELAX_PLT:
4335 case R_PPC_RELAX_PLTREL24:
7ba71655 4336 case R_PPC_16DX_HA:
25dbc73a 4337 break;
252b5132 4338
25dbc73a
AM
4339 /* These should only appear in dynamic objects. */
4340 case R_PPC_COPY:
4341 case R_PPC_GLOB_DAT:
4342 case R_PPC_JMP_SLOT:
4343 case R_PPC_RELATIVE:
e054468f 4344 case R_PPC_IRELATIVE:
25dbc73a 4345 break;
252b5132 4346
25dbc73a
AM
4347 /* These aren't handled yet. We'll report an error later. */
4348 case R_PPC_ADDR30:
4349 case R_PPC_EMB_RELSEC16:
4350 case R_PPC_EMB_RELST_LO:
4351 case R_PPC_EMB_RELST_HI:
4352 case R_PPC_EMB_RELST_HA:
4353 case R_PPC_EMB_BIT_FLD:
4354 break;
252b5132 4355
25dbc73a
AM
4356 /* This refers only to functions defined in the shared library. */
4357 case R_PPC_LOCAL24PC:
727fc41e 4358 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4359 {
4360 htab->plt_type = PLT_OLD;
4361 htab->old_bfd = abfd;
4362 }
c7e17e05
AM
4363 if (h != NULL && h->type == STT_GNU_IFUNC)
4364 {
c7e17e05
AM
4365 h->needs_plt = 1;
4366 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4367 return FALSE;
4368 }
25dbc73a 4369 break;
252b5132 4370
25dbc73a
AM
4371 /* This relocation describes the C++ object vtable hierarchy.
4372 Reconstruct it for later use during GC. */
4373 case R_PPC_GNU_VTINHERIT:
4374 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4375 return FALSE;
4376 break;
252b5132 4377
25dbc73a
AM
4378 /* This relocation describes which C++ vtable entries are actually
4379 used. Record for later use during GC. */
4380 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4381 BFD_ASSERT (h != NULL);
4382 if (h != NULL
4383 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4384 return FALSE;
4385 break;
252b5132 4386
7c8bbca5 4387 /* We shouldn't really be seeing TPREL32. */
25dbc73a 4388 case R_PPC_TPREL32:
1d483afe
AM
4389 case R_PPC_TPREL16:
4390 case R_PPC_TPREL16_LO:
4391 case R_PPC_TPREL16_HI:
4392 case R_PPC_TPREL16_HA:
7c8bbca5 4393 if (bfd_link_dll (info))
25dbc73a
AM
4394 info->flags |= DF_STATIC_TLS;
4395 goto dodyn;
252b5132 4396
25dbc73a
AM
4397 /* Nor these. */
4398 case R_PPC_DTPMOD32:
4399 case R_PPC_DTPREL32:
4400 goto dodyn;
252b5132 4401
9edfd1af
AM
4402 case R_PPC_REL32:
4403 if (h == NULL
4404 && got2 != NULL
4405 && (sec->flags & SEC_CODE) != 0
0e1862bb 4406 && bfd_link_pic (info)
4a3dc543 4407 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4408 {
4409 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4410 the start of a function, which assembles to a REL32
4411 reference to .got2. If we detect one of these, then
4412 force the old PLT layout because the linker cannot
4413 reliably deduce the GOT pointer value needed for
4414 PLT call stubs. */
4415 asection *s;
87d72d41 4416 Elf_Internal_Sym *isym;
9edfd1af 4417
87d72d41
AM
4418 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4419 abfd, r_symndx);
4420 if (isym == NULL)
4421 return FALSE;
4422
4423 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4424 if (s == got2)
016687f8
AM
4425 {
4426 htab->plt_type = PLT_OLD;
4427 htab->old_bfd = abfd;
4428 }
9edfd1af 4429 }
7123df0e 4430 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4431 break;
625af618
AM
4432 /* fall through */
4433
4434 case R_PPC_ADDR32:
4435 case R_PPC_ADDR16:
4436 case R_PPC_ADDR16_LO:
4437 case R_PPC_ADDR16_HI:
4438 case R_PPC_ADDR16_HA:
4439 case R_PPC_UADDR32:
4440 case R_PPC_UADDR16:
0e1862bb 4441 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4442 {
4443 /* We may need a plt entry if the symbol turns out to be
4444 a function defined in a dynamic object. */
3ec01793 4445 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4446 return FALSE;
4447
4448 /* We may need a copy reloc too. */
4449 h->non_got_ref = 1;
4450 h->pointer_equality_needed = 1;
d3e454b9
AM
4451 if (r_type == R_PPC_ADDR16_HA)
4452 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4453 if (r_type == R_PPC_ADDR16_LO)
4454 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4455 }
4456 goto dodyn;
9edfd1af 4457
25dbc73a
AM
4458 case R_PPC_REL24:
4459 case R_PPC_REL14:
4460 case R_PPC_REL14_BRTAKEN:
4461 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4462 if (h == NULL)
25dbc73a 4463 break;
7123df0e 4464 if (h == htab->elf.hgot)
d7128ce4 4465 {
7123df0e 4466 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4467 {
4468 htab->plt_type = PLT_OLD;
4469 htab->old_bfd = abfd;
4470 }
d7128ce4
AM
4471 break;
4472 }
25dbc73a 4473 /* fall through */
ee05f2fe 4474
25dbc73a 4475 case R_PPC_ADDR24:
25dbc73a
AM
4476 case R_PPC_ADDR14:
4477 case R_PPC_ADDR14_BRTAKEN:
4478 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4479 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4480 {
4481 /* We may need a plt entry if the symbol turns out to be
4482 a function defined in a dynamic object. */
e054468f 4483 h->needs_plt = 1;
de972ffa 4484 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4485 return FALSE;
625af618 4486 break;
25dbc73a 4487 }
7619e7c7 4488
25dbc73a
AM
4489 dodyn:
4490 /* If we are creating a shared library, and this is a reloc
4491 against a global symbol, or a non PC relative reloc
4492 against a local symbol, then we need to copy the reloc
4493 into the shared library. However, if we are linking with
4494 -Bsymbolic, we do not need to copy a reloc against a
4495 global symbol which is defined in an object we are
4496 including in the link (i.e., DEF_REGULAR is set). At
4497 this point we have not seen all the input files, so it is
4498 possible that DEF_REGULAR is not set now but will be set
4499 later (it is never cleared). In case of a weak definition,
4500 DEF_REGULAR may be cleared later by a strong definition in
4501 a shared library. We account for that possibility below by
4502 storing information in the dyn_relocs field of the hash
4503 table entry. A similar situation occurs when creating
4504 shared libraries and symbol visibility changes render the
4505 symbol local.
7619e7c7 4506
25dbc73a
AM
4507 If on the other hand, we are creating an executable, we
4508 may need to keep relocations for symbols satisfied by a
4509 dynamic library if we manage to avoid copy relocs for the
4510 symbol. */
0e1862bb 4511 if ((bfd_link_pic (info)
1d483afe 4512 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4513 || (h != NULL
198f1157 4514 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4515 || h->root.type == bfd_link_hash_defweak
4516 || !h->def_regular))))
4517 || (ELIMINATE_COPY_RELOCS
0e1862bb 4518 && !bfd_link_pic (info)
25dbc73a
AM
4519 && h != NULL
4520 && (h->root.type == bfd_link_hash_defweak
de972ffa 4521 || !h->def_regular)))
25dbc73a 4522 {
25dbc73a
AM
4523#ifdef DEBUG
4524 fprintf (stderr,
4525 "ppc_elf_check_relocs needs to "
4526 "create relocation for %s\n",
4527 (h && h->root.root.string
4528 ? h->root.root.string : "<unknown>"));
4529#endif
4530 if (sreloc == NULL)
4531 {
c9a2f333
AM
4532 if (htab->elf.dynobj == NULL)
4533 htab->elf.dynobj = abfd;
83bac4b0
NC
4534
4535 sreloc = _bfd_elf_make_dynamic_reloc_section
4536 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4537
25dbc73a 4538 if (sreloc == NULL)
83bac4b0 4539 return FALSE;
25dbc73a 4540 }
7619e7c7 4541
25dbc73a
AM
4542 /* If this is a global symbol, we count the number of
4543 relocations we need for this symbol. */
4544 if (h != NULL)
4545 {
f95f8542
AM
4546 struct elf_dyn_relocs *p;
4547 struct elf_dyn_relocs **rel_head;
4548
91d6fa6a 4549 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4550 p = *rel_head;
4551 if (p == NULL || p->sec != sec)
4552 {
4553 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4554 if (p == NULL)
4555 return FALSE;
4556 p->next = *rel_head;
4557 *rel_head = p;
4558 p->sec = sec;
4559 p->count = 0;
4560 p->pc_count = 0;
4561 }
4562 p->count += 1;
4563 if (!must_be_dyn_reloc (info, r_type))
4564 p->pc_count += 1;
25dbc73a
AM
4565 }
4566 else
4567 {
4568 /* Track dynamic relocs needed for local syms too.
4569 We really need local syms available to do this
4570 easily. Oh well. */
f95f8542
AM
4571 struct ppc_dyn_relocs *p;
4572 struct ppc_dyn_relocs **rel_head;
4573 bfd_boolean is_ifunc;
25dbc73a 4574 asection *s;
6edfbbad 4575 void *vpp;
87d72d41 4576 Elf_Internal_Sym *isym;
6edfbbad 4577
87d72d41
AM
4578 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4579 abfd, r_symndx);
4580 if (isym == NULL)
25dbc73a 4581 return FALSE;
7fce784e 4582
87d72d41
AM
4583 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4584 if (s == NULL)
4585 s = sec;
4586
6edfbbad 4587 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4588 rel_head = (struct ppc_dyn_relocs **) vpp;
4589 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4590 p = *rel_head;
4591 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4592 p = p->next;
4593 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4594 {
4595 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4596 if (p == NULL)
4597 return FALSE;
4598 p->next = *rel_head;
4599 *rel_head = p;
4600 p->sec = sec;
4601 p->ifunc = is_ifunc;
4602 p->count = 0;
4603 }
4604 p->count += 1;
25dbc73a 4605 }
7619e7c7 4606 }
25dbc73a
AM
4607
4608 break;
7619e7c7
AM
4609 }
4610 }
ee05f2fe 4611
25dbc73a
AM
4612 return TRUE;
4613}
4614\f
005d79fd
AM
4615/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4616 and OBFD, and merge non-conflicting ones. */
4617void
50e03d47 4618_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4619{
50e03d47 4620 bfd *obfd = info->output_bfd;
c6e65352
DJ
4621 obj_attribute *in_attr, *in_attrs;
4622 obj_attribute *out_attr, *out_attrs;
34c8bcba 4623
c6e65352
DJ
4624 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4625 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4626
c6e65352
DJ
4627 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4628 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4629
c6e65352 4630 if (in_attr->i != out_attr->i)
34c8bcba 4631 {
005d79fd
AM
4632 int in_fp = in_attr->i & 3;
4633 int out_fp = out_attr->i & 3;
4634
4635 if (in_fp == 0)
34c8bcba 4636 ;
005d79fd
AM
4637 else if (out_fp == 0)
4638 {
4639 out_attr->type = 1;
4640 out_attr->i ^= in_fp;
4641 }
4642 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4643 _bfd_error_handler
695344c0 4644 /* xgettext:c-format */
34c8bcba 4645 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4646 else if (out_fp == 2 && in_fp != 2)
4647 _bfd_error_handler
695344c0 4648 /* xgettext:c-format */
005d79fd
AM
4649 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4650 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4651 _bfd_error_handler
695344c0 4652 /* xgettext:c-format */
005d79fd
AM
4653 (_("Warning: %B uses double-precision hard float, "
4654 "%B uses single-precision hard float"), obfd, ibfd);
4655 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4656 _bfd_error_handler
695344c0 4657 /* xgettext:c-format */
005d79fd
AM
4658 (_("Warning: %B uses double-precision hard float, "
4659 "%B uses single-precision hard float"), ibfd, obfd);
4660
4661 in_fp = in_attr->i & 0xc;
4662 out_fp = out_attr->i & 0xc;
4663 if (in_fp == 0)
4664 ;
4665 else if (out_fp == 0)
4666 {
4667 out_attr->type = 1;
4668 out_attr->i ^= in_fp;
4669 }
4670 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4671 _bfd_error_handler
695344c0 4672 /* xgettext:c-format */
005d79fd
AM
4673 (_("Warning: %B uses 64-bit long double, "
4674 "%B uses 128-bit long double"), ibfd, obfd);
4675 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4676 _bfd_error_handler
695344c0 4677 /* xgettext:c-format */
005d79fd
AM
4678 (_("Warning: %B uses 64-bit long double, "
4679 "%B uses 128-bit long double"), obfd, ibfd);
4680 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4681 _bfd_error_handler
695344c0 4682 /* xgettext:c-format */
005d79fd
AM
4683 (_("Warning: %B uses IBM long double, "
4684 "%B uses IEEE long double"), ibfd, obfd);
4685 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4686 _bfd_error_handler
695344c0 4687 /* xgettext:c-format */
005d79fd
AM
4688 (_("Warning: %B uses IBM long double, "
4689 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4690 }
005d79fd
AM
4691}
4692
4693/* Merge object attributes from IBFD into OBFD. Warn if
4694 there are conflicting attributes. */
4695static bfd_boolean
50e03d47 4696ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4697{
50e03d47 4698 bfd *obfd;
005d79fd
AM
4699 obj_attribute *in_attr, *in_attrs;
4700 obj_attribute *out_attr, *out_attrs;
4701
50e03d47 4702 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4703
50e03d47 4704 obfd = info->output_bfd;
005d79fd
AM
4705 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4706 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4707
4708 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4709 merge non-conflicting ones. */
4710 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4711 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4712 if (in_attr->i != out_attr->i)
4713 {
005d79fd
AM
4714 int in_vec = in_attr->i & 3;
4715 int out_vec = out_attr->i & 3;
c6e65352 4716
005d79fd
AM
4717 if (in_vec == 0)
4718 ;
4719 else if (out_vec == 0)
c6e65352 4720 {
005d79fd
AM
4721 out_attr->type = 1;
4722 out_attr->i = in_vec;
c6e65352 4723 }
c6e65352
DJ
4724 /* For now, allow generic to transition to AltiVec or SPE
4725 without a warning. If GCC marked files with their stack
4726 alignment and used don't-care markings for files which are
4727 not affected by the vector ABI, we could warn about this
4728 case too. */
005d79fd 4729 else if (in_vec == 1)
c6e65352 4730 ;
005d79fd
AM
4731 else if (out_vec == 1)
4732 {
4733 out_attr->type = 1;
4734 out_attr->i = in_vec;
4735 }
4736 else if (out_vec < in_vec)
c6e65352 4737 _bfd_error_handler
695344c0 4738 /* xgettext:c-format */
005d79fd
AM
4739 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4740 obfd, ibfd);
4741 else if (out_vec > in_vec)
c6e65352 4742 _bfd_error_handler
695344c0 4743 /* xgettext:c-format */
005d79fd
AM
4744 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4745 ibfd, obfd);
34c8bcba
JM
4746 }
4747
f82e0623
NF
4748 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4749 and merge non-conflicting ones. */
4750 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4751 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4752 if (in_attr->i != out_attr->i)
4753 {
005d79fd
AM
4754 int in_struct = in_attr->i & 3;
4755 int out_struct = out_attr->i & 3;
4756
4757 if (in_struct == 0 || in_struct == 3)
f82e0623 4758 ;
005d79fd
AM
4759 else if (out_struct == 0)
4760 {
4761 out_attr->type = 1;
4762 out_attr->i = in_struct;
4763 }
4764 else if (out_struct < in_struct)
4765 _bfd_error_handler
695344c0 4766 /* xgettext:c-format */
005d79fd
AM
4767 (_("Warning: %B uses r3/r4 for small structure returns, "
4768 "%B uses memory"), obfd, ibfd);
4769 else if (out_struct > in_struct)
4770 _bfd_error_handler
695344c0 4771 /* xgettext:c-format */
005d79fd
AM
4772 (_("Warning: %B uses r3/r4 for small structure returns, "
4773 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4774 }
4775
34c8bcba 4776 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4777 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4778
4779 return TRUE;
4780}
4781
8853c3d3
AM
4782/* Merge backend specific data from an object file to the output
4783 object file when linking. */
4784
4785static bfd_boolean
50e03d47 4786ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4787{
50e03d47 4788 bfd *obfd = info->output_bfd;
8853c3d3
AM
4789 flagword old_flags;
4790 flagword new_flags;
4791 bfd_boolean error;
4792
0c8d6e5c 4793 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4794 return TRUE;
4795
cc643b88 4796 /* Check if we have the same endianness. */
50e03d47 4797 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4798 return FALSE;
4799
50e03d47 4800 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4801 return FALSE;
4802
8853c3d3
AM
4803 new_flags = elf_elfheader (ibfd)->e_flags;
4804 old_flags = elf_elfheader (obfd)->e_flags;
4805 if (!elf_flags_init (obfd))
4806 {
4807 /* First call, no flags set. */
4808 elf_flags_init (obfd) = TRUE;
4809 elf_elfheader (obfd)->e_flags = new_flags;
4810 }
4811
4812 /* Compatible flags are ok. */
4813 else if (new_flags == old_flags)
4814 ;
4815
4816 /* Incompatible flags. */
4817 else
4818 {
4819 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4820 to be linked with either. */
4821 error = FALSE;
4822 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4823 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4824 {
4825 error = TRUE;
4eca0228 4826 _bfd_error_handler
8853c3d3
AM
4827 (_("%B: compiled with -mrelocatable and linked with "
4828 "modules compiled normally"), ibfd);
4829 }
4830 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4831 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4832 {
4833 error = TRUE;
4eca0228 4834 _bfd_error_handler
8853c3d3
AM
4835 (_("%B: compiled normally and linked with "
4836 "modules compiled with -mrelocatable"), ibfd);
4837 }
4838
4839 /* The output is -mrelocatable-lib iff both the input files are. */
4840 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4841 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4842
4843 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4844 but each input file is either -mrelocatable or -mrelocatable-lib. */
4845 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4846 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4847 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4848 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4849
4850 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4851 any module uses it. */
4852 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4853
4854 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4855 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4856
4857 /* Warn about any other mismatches. */
4858 if (new_flags != old_flags)
4859 {
4860 error = TRUE;
4eca0228 4861 _bfd_error_handler
695344c0 4862 /* xgettext:c-format */
cd9af601
AM
4863 (_("%B: uses different e_flags (%#x) fields "
4864 "than previous modules (%#x)"),
4865 ibfd, new_flags, old_flags);
8853c3d3
AM
4866 }
4867
4868 if (error)
4869 {
4870 bfd_set_error (bfd_error_bad_value);
4871 return FALSE;
4872 }
4873 }
4874
4875 return TRUE;
4876}
b9c361e0
JL
4877
4878static void
95f0d0d2 4879ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
4880 asection *input_section,
4881 unsigned long offset,
95f0d0d2 4882 bfd_byte *loc,
86c95733 4883 bfd_vma value,
08dc996f
AM
4884 split16_format_type split16_format,
4885 bfd_boolean fixup)
b9c361e0 4886{
08dc996f 4887 unsigned int insn, opcode, top5;
b9c361e0 4888
95f0d0d2 4889 insn = bfd_get_32 (input_bfd, loc);
673cff9b 4890 opcode = insn & 0xfc00f800;
08dc996f
AM
4891 if (opcode == E_OR2I_INSN
4892 || opcode == E_AND2I_DOT_INSN
4893 || opcode == E_OR2IS_INSN
4894 || opcode == E_LIS_INSN
4895 || opcode == E_AND2IS_DOT_INSN)
4896 {
4897 if (split16_format != split16a_type)
4898 {
4899 if (fixup)
4900 split16_format = split16a_type;
4901 else
4902 _bfd_error_handler
4903 /* xgettext:c-format */
4904 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4905 input_bfd, input_section, offset, opcode);
4906 }
4907 }
4908 else if (opcode == E_ADD2I_DOT_INSN
4909 || opcode == E_ADD2IS_INSN
4910 || opcode == E_CMP16I_INSN
4911 || opcode == E_MULL2I_INSN
4912 || opcode == E_CMPL16I_INSN
4913 || opcode == E_CMPH16I_INSN
4914 || opcode == E_CMPHL16I_INSN)
4915 {
4916 if (split16_format != split16d_type)
4917 {
4918 if (fixup)
4919 split16_format = split16d_type;
4920 else
4921 _bfd_error_handler
4922 /* xgettext:c-format */
4923 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4924 input_bfd, input_section, offset, opcode);
4925 }
4926 }
86c95733 4927 top5 = value & 0xf800;
5499c7c7
AM
4928 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
4929 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
b9c361e0 4930 insn |= top5;
86c95733 4931 insn |= value & 0x7ff;
95f0d0d2 4932 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 4933}
83eef883
AFB
4934
4935static void
4936ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
4937{
4938 unsigned int insn;
4939
4940 insn = bfd_get_32 (output_bfd, loc);
4941 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
4942 /* Top 4 bits of value to 17..20. */
4943 insn |= (value & 0xf0000) >> 5;
4944 /* Next 5 bits of the value to 11..15. */
4945 insn |= (value & 0xf800) << 5;
4946 /* And the final 11 bits of the value to bits 21 to 31. */
4947 insn |= value & 0x7ff;
4948 bfd_put_32 (output_bfd, insn, loc);
4949}
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)
21d68fcd 4977 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
b3874e1a
AM
4978 {
4979 /* Profiling of shared libs (and pies) is not supported with
4980 secure plt, because ppc32 does profiling before a
4981 function prologue and a secure plt pic call stubs needs
4982 r30 to be set up. */
4983 htab->plt_type = PLT_OLD;
4984 }
016687f8
AM
4985 else
4986 {
4987 bfd *ibfd;
5446cbdf 4988 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4989
4990 /* Look through the reloc flags left by ppc_elf_check_relocs.
4991 Use the old style bss plt if a file makes plt calls
4992 without using the new relocs, and if ld isn't given
4993 --secure-plt and we never see REL16 relocs. */
4994 if (plt_type == PLT_UNSET)
4995 plt_type = PLT_OLD;
c72f2fb2 4996 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 4997 if (is_ppc_elf (ibfd))
016687f8
AM
4998 {
4999 if (ppc_elf_tdata (ibfd)->has_rel16)
5000 plt_type = PLT_NEW;
5001 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5002 {
5003 plt_type = PLT_OLD;
5004 htab->old_bfd = ibfd;
5005 break;
5006 }
5007 }
5008 htab->plt_type = plt_type;
5009 }
5010 }
5446cbdf 5011 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5012 {
5013 if (htab->old_bfd != NULL)
5014 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5015 htab->old_bfd);
5016 else
5017 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5018 }
d7128ce4 5019
4a3dc543 5020 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5021
4a3dc543 5022 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5023 {
5024 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5025 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5026
5027 /* The new PLT is a loaded section. */
ce558b89
AM
5028 if (htab->elf.splt != NULL
5029 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5030 return -1;
5031
5032 /* The new GOT is not executable. */
ce558b89
AM
5033 if (htab->elf.sgot != NULL
5034 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5035 return -1;
d7128ce4
AM
5036 }
5037 else
5038 {
5039 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5040 if (htab->glink != NULL
5041 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5042 return -1;
d7128ce4 5043 }
4a3dc543 5044 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5045}
5046\f
25dbc73a
AM
5047/* Return the section that should be marked against GC for a given
5048 relocation. */
586119b3 5049
25dbc73a
AM
5050static asection *
5051ppc_elf_gc_mark_hook (asection *sec,
07adf181 5052 struct bfd_link_info *info,
25dbc73a
AM
5053 Elf_Internal_Rela *rel,
5054 struct elf_link_hash_entry *h,
5055 Elf_Internal_Sym *sym)
5056{
5057 if (h != NULL)
07adf181
AM
5058 switch (ELF32_R_TYPE (rel->r_info))
5059 {
5060 case R_PPC_GNU_VTINHERIT:
5061 case R_PPC_GNU_VTENTRY:
5062 return NULL;
5063 }
5064
5065 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5066}
25dbc73a 5067\f
3a71aa26
AM
5068/* Set plt output section type, htab->tls_get_addr, and call the
5069 generic ELF tls_setup function. */
7fce784e 5070
25dbc73a 5071asection *
5446cbdf 5072ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5073{
25dbc73a 5074 struct ppc_elf_link_hash_table *htab;
7fce784e 5075
25dbc73a 5076 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5077 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5078 FALSE, FALSE, TRUE);
f01f1741
AM
5079 if (htab->plt_type != PLT_NEW)
5080 htab->params->no_tls_get_addr_opt = TRUE;
5081
5446cbdf 5082 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5083 {
5084 struct elf_link_hash_entry *opt, *tga;
5085 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5086 FALSE, FALSE, TRUE);
5087 if (opt != NULL
5088 && (opt->root.type == bfd_link_hash_defined
5089 || opt->root.type == bfd_link_hash_defweak))
5090 {
5091 /* If glibc supports an optimized __tls_get_addr call stub,
5092 signalled by the presence of __tls_get_addr_opt, and we'll
5093 be calling __tls_get_addr via a plt call stub, then
5094 make __tls_get_addr point to __tls_get_addr_opt. */
5095 tga = htab->tls_get_addr;
5096 if (htab->elf.dynamic_sections_created
5097 && tga != NULL
5098 && (tga->type == STT_FUNC
5099 || tga->needs_plt)
5100 && !(SYMBOL_CALLS_LOCAL (info, tga)
21d68fcd 5101 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
a7f2871e
AM
5102 {
5103 struct plt_entry *ent;
32af9f6e
AM
5104 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5105 if (ent->plt.refcount > 0)
5106 break;
5107 if (ent != NULL)
a7f2871e
AM
5108 {
5109 tga->root.type = bfd_link_hash_indirect;
5110 tga->root.u.i.link = &opt->root;
5111 ppc_elf_copy_indirect_symbol (info, opt, tga);
b531344c 5112 opt->mark = 1;
a7f2871e
AM
5113 if (opt->dynindx != -1)
5114 {
5115 /* Use __tls_get_addr_opt in dynamic relocations. */
5116 opt->dynindx = -1;
5117 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5118 opt->dynstr_index);
5119 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5120 return FALSE;
5121 }
5122 htab->tls_get_addr = opt;
5123 }
5124 }
5125 }
5126 else
5446cbdf 5127 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5128 }
4a3dc543 5129 if (htab->plt_type == PLT_NEW
ce558b89
AM
5130 && htab->elf.splt != NULL
5131 && htab->elf.splt->output_section != NULL)
d7128ce4 5132 {
ce558b89
AM
5133 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5134 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5135 }
5136
25dbc73a 5137 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5138}
5139
3a71aa26
AM
5140/* Return TRUE iff REL is a branch reloc with a global symbol matching
5141 HASH. */
5142
5143static bfd_boolean
5144branch_reloc_hash_match (const bfd *ibfd,
5145 const Elf_Internal_Rela *rel,
5146 const struct elf_link_hash_entry *hash)
5147{
5148 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5149 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5150 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5151
e054468f 5152 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5153 {
5154 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5155 struct elf_link_hash_entry *h;
5156
5157 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5158 while (h->root.type == bfd_link_hash_indirect
5159 || h->root.type == bfd_link_hash_warning)
5160 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5161 if (h == hash)
5162 return TRUE;
5163 }
5164 return FALSE;
5165}
5166
25dbc73a
AM
5167/* Run through all the TLS relocs looking for optimization
5168 opportunities. */
252b5132 5169
25dbc73a
AM
5170bfd_boolean
5171ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5172 struct bfd_link_info *info)
252b5132 5173{
7fce784e 5174 bfd *ibfd;
25dbc73a
AM
5175 asection *sec;
5176 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5177 int pass;
252b5132 5178
3cbc1e5e 5179 if (!bfd_link_executable (info))
25dbc73a 5180 return TRUE;
252b5132 5181
7619e7c7 5182 htab = ppc_elf_hash_table (info);
663a1470
AM
5183 if (htab == NULL)
5184 return FALSE;
5185
b7fcf6f6
AM
5186 /* Make two passes through the relocs. First time check that tls
5187 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5188 followed by such a call. If they are not, don't do any tls
5189 optimization. On the second pass twiddle tls_mask flags to
5190 notify relocate_section that optimization can be done, and
5191 adjust got and plt refcounts. */
b7fcf6f6 5192 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5193 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5194 {
5195 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5196 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5197 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5198
b7fcf6f6
AM
5199 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5200 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5201 {
5202 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5203 int expecting_tls_get_addr = 0;
252b5132 5204
b7fcf6f6
AM
5205 /* Read the relocations. */
5206 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5207 info->keep_memory);
5208 if (relstart == NULL)
5209 return FALSE;
7619e7c7 5210
b7fcf6f6
AM
5211 relend = relstart + sec->reloc_count;
5212 for (rel = relstart; rel < relend; rel++)
5213 {
5214 enum elf_ppc_reloc_type r_type;
5215 unsigned long r_symndx;
5216 struct elf_link_hash_entry *h = NULL;
5217 char *tls_mask;
5218 char tls_set, tls_clear;
5219 bfd_boolean is_local;
b7fcf6f6
AM
5220 bfd_signed_vma *got_count;
5221
5222 r_symndx = ELF32_R_SYM (rel->r_info);
5223 if (r_symndx >= symtab_hdr->sh_info)
5224 {
5225 struct elf_link_hash_entry **sym_hashes;
7fce784e 5226
b7fcf6f6
AM
5227 sym_hashes = elf_sym_hashes (ibfd);
5228 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5229 while (h->root.type == bfd_link_hash_indirect
5230 || h->root.type == bfd_link_hash_warning)
5231 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5232 }
7619e7c7 5233
b7fcf6f6
AM
5234 is_local = FALSE;
5235 if (h == NULL
5236 || !h->def_dynamic)
5237 is_local = TRUE;
7619e7c7 5238
b7fcf6f6 5239 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5240 /* If this section has old-style __tls_get_addr calls
5241 without marker relocs, then check that each
5242 __tls_get_addr call reloc is preceded by a reloc
5243 that conceivably belongs to the __tls_get_addr arg
5244 setup insn. If we don't find matching arg setup
5245 relocs, don't do any tls optimization. */
5246 if (pass == 0
5247 && sec->has_tls_get_addr_call
5248 && h != NULL
5249 && h == htab->tls_get_addr
5250 && !expecting_tls_get_addr
5251 && is_branch_reloc (r_type))
5252 {
25f53a85 5253 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5254 "TLS optimization disabled\n",
5255 ibfd, sec, rel->r_offset);
5256 if (elf_section_data (sec)->relocs != relstart)
5257 free (relstart);
5258 return TRUE;
5259 }
5260
5261 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5262 switch (r_type)
5263 {
5264 case R_PPC_GOT_TLSLD16:
5265 case R_PPC_GOT_TLSLD16_LO:
5266 expecting_tls_get_addr = 1;
1a0670f3 5267 /* Fall through. */
b7fcf6f6
AM
5268
5269 case R_PPC_GOT_TLSLD16_HI:
5270 case R_PPC_GOT_TLSLD16_HA:
5271 /* These relocs should never be against a symbol
5272 defined in a shared lib. Leave them alone if
5273 that turns out to be the case. */
5274 if (!is_local)
5275 continue;
5276
5277 /* LD -> LE */
5278 tls_set = 0;
5279 tls_clear = TLS_LD;
5280 break;
5281
5282 case R_PPC_GOT_TLSGD16:
5283 case R_PPC_GOT_TLSGD16_LO:
5284 expecting_tls_get_addr = 1;
1a0670f3 5285 /* Fall through. */
b7fcf6f6
AM
5286
5287 case R_PPC_GOT_TLSGD16_HI:
5288 case R_PPC_GOT_TLSGD16_HA:
5289 if (is_local)
5290 /* GD -> LE */
5291 tls_set = 0;
5292 else
5293 /* GD -> IE */
5294 tls_set = TLS_TLS | TLS_TPRELGD;
5295 tls_clear = TLS_GD;
5296 break;
5297
5298 case R_PPC_GOT_TPREL16:
5299 case R_PPC_GOT_TPREL16_LO:
5300 case R_PPC_GOT_TPREL16_HI:
5301 case R_PPC_GOT_TPREL16_HA:
5302 if (is_local)
5303 {
5304 /* IE -> LE */
5305 tls_set = 0;
5306 tls_clear = TLS_TPREL;
5307 break;
5308 }
5309 else
5310 continue;
5311
32af9f6e
AM
5312 case R_PPC_TLSGD:
5313 case R_PPC_TLSLD:
5314 expecting_tls_get_addr = 2;
5315 tls_set = 0;
5316 tls_clear = 0;
5317 break;
5318
b7fcf6f6 5319 default:
25dbc73a 5320 continue;
b7fcf6f6 5321 }
25dbc73a 5322
b7fcf6f6
AM
5323 if (pass == 0)
5324 {
727fc41e 5325 if (!expecting_tls_get_addr
32af9f6e
AM
5326 || (expecting_tls_get_addr == 1
5327 && !sec->has_tls_get_addr_call))
b7fcf6f6 5328 continue;
25dbc73a 5329
3a71aa26
AM
5330 if (rel + 1 < relend
5331 && branch_reloc_hash_match (ibfd, rel + 1,
5332 htab->tls_get_addr))
5333 continue;
25dbc73a 5334
b7fcf6f6
AM
5335 /* Uh oh, we didn't find the expected call. We
5336 could just mark this symbol to exclude it
5337 from tls optimization but it's safer to skip
663a1470 5338 the entire optimization. */
25f53a85 5339 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5340 "TLS optimization disabled\n"),
5341 ibfd, sec, rel->r_offset);
5342 if (elf_section_data (sec)->relocs != relstart)
5343 free (relstart);
5344 return TRUE;
b7fcf6f6 5345 }
25dbc73a 5346
32af9f6e
AM
5347 if (expecting_tls_get_addr)
5348 {
5349 struct plt_entry *ent;
5350 bfd_vma addend = 0;
5351
0e1862bb 5352 if (bfd_link_pic (info)
32af9f6e
AM
5353 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5354 addend = rel[1].r_addend;
5355 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5356 got2, addend);
5357 if (ent != NULL && ent->plt.refcount > 0)
5358 ent->plt.refcount -= 1;
5359
5360 if (expecting_tls_get_addr == 2)
5361 continue;
5362 }
5363
b7fcf6f6
AM
5364 if (h != NULL)
5365 {
5366 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5367 got_count = &h->got.refcount;
5368 }
5369 else
5370 {
b7fcf6f6 5371 bfd_signed_vma *lgot_refs;
e054468f 5372 struct plt_entry **local_plt;
b7fcf6f6 5373 char *lgot_masks;
25dbc73a 5374
b7fcf6f6
AM
5375 if (locsyms == NULL)
5376 {
5377 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5378 if (locsyms == NULL)
5379 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5380 symtab_hdr->sh_info,
5381 0, NULL, NULL, NULL);
5382 if (locsyms == NULL)
5383 {
5384 if (elf_section_data (sec)->relocs != relstart)
5385 free (relstart);
5386 return FALSE;
5387 }
5388 }
b7fcf6f6
AM
5389 lgot_refs = elf_local_got_refcounts (ibfd);
5390 if (lgot_refs == NULL)
5391 abort ();
e054468f
AM
5392 local_plt = (struct plt_entry **)
5393 (lgot_refs + symtab_hdr->sh_info);
5394 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5395 tls_mask = &lgot_masks[r_symndx];
5396 got_count = &lgot_refs[r_symndx];
5397 }
25dbc73a 5398
b7fcf6f6
AM
5399 if (tls_set == 0)
5400 {
5401 /* We managed to get rid of a got entry. */
5402 if (*got_count > 0)
5403 *got_count -= 1;
5404 }
25dbc73a 5405
b7fcf6f6
AM
5406 *tls_mask |= tls_set;
5407 *tls_mask &= ~tls_clear;
5408 }
25dbc73a 5409
b7fcf6f6
AM
5410 if (elf_section_data (sec)->relocs != relstart)
5411 free (relstart);
5412 }
5413
5414 if (locsyms != NULL
5415 && (symtab_hdr->contents != (unsigned char *) locsyms))
5416 {
5417 if (!info->keep_memory)
5418 free (locsyms);
5419 else
5420 symtab_hdr->contents = (unsigned char *) locsyms;
5421 }
5422 }
9a23f96e 5423 htab->do_tls_opt = 1;
25dbc73a
AM
5424 return TRUE;
5425}
5426\f
98bbb1b8 5427/* Find dynamic relocs for H that apply to read-only sections. */
625af618 5428
98bbb1b8
AM
5429static asection *
5430readonly_dynrelocs (struct elf_link_hash_entry *h)
625af618 5431{
6061a67d 5432 struct elf_dyn_relocs *p;
625af618
AM
5433
5434 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5435 {
5436 asection *s = p->sec->output_section;
5437
98bbb1b8
AM
5438 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5439 return p->sec;
625af618 5440 }
98bbb1b8 5441 return NULL;
625af618
AM
5442}
5443
25dbc73a
AM
5444/* Adjust a symbol defined by a dynamic object and referenced by a
5445 regular object. The current definition is in some section of the
5446 dynamic object, but we're not including those sections. We have to
5447 change the definition to something the rest of the link can
5448 understand. */
7fce784e 5449
25dbc73a
AM
5450static bfd_boolean
5451ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5452 struct elf_link_hash_entry *h)
5453{
5454 struct ppc_elf_link_hash_table *htab;
5455 asection *s;
7fce784e 5456
25dbc73a
AM
5457#ifdef DEBUG
5458 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5459 h->root.root.string);
5460#endif
252b5132 5461
25dbc73a
AM
5462 /* Make sure we know what is going on here. */
5463 htab = ppc_elf_hash_table (info);
5464 BFD_ASSERT (htab->elf.dynobj != NULL
5465 && (h->needs_plt
91e21fb7 5466 || h->type == STT_GNU_IFUNC
60d67dc8 5467 || h->is_weakalias
25dbc73a
AM
5468 || (h->def_dynamic
5469 && h->ref_regular
5470 && !h->def_regular)));
252b5132 5471
25dbc73a
AM
5472 /* Deal with function syms. */
5473 if (h->type == STT_FUNC
e054468f 5474 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5475 || h->needs_plt)
5476 {
529fe20e
AM
5477 /* Prior to adjust_dynamic_symbol, non_got_ref set means that
5478 we might need to generate a copy reloc for this symbol.
5479 After adjust_dynamic_symbol, non_got_ref is only relevant for
5480 non-pic and means that the symbol might have dynamic
5481 relocations. If it is clear then dyn_relocs for this symbol
5482 should be discarded; We either want the symbol to remain
5483 undefined, or we have a local definition of some sort. The
5484 "local definition" for non-function symbols may be due to
5485 creating a local definition in .dynbss, and for function
5486 symbols, defining the symbol on the PLT call stub code. */
5487 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, h)
5488 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
5489 /* Arrange to discard dyn_relocs if we've decided that a
5490 function symbol is local. It might be possible to discard
5491 dyn_relocs here, but when a symbol has a weakdef they have
5492 been transferred to the weakdef symbol for the benefit of
5493 readonly_dynrelocs. (See ppc_elf_copy_indirect_symbol.)
5494 Not only would we need to handle weakdefs here, but also in
5495 allocate_dynrelocs and relocate_section. The latter is
5496 impossible since the weakdef field has been overwritten by
5497 that time. In relocate_section we need a proxy for
5498 dyn_relocs and non_got_ref is that proxy.
5499 Note that function symbols are not supposed to have weakdefs,
5500 but since symbols may not be correctly typed we handle them
5501 here. */
60d67dc8
AM
5502 h->non_got_ref = (h->is_weakalias
5503 ? weakdef (h)->non_got_ref
529fe20e
AM
5504 : !local && (((struct ppc_elf_link_hash_entry *) h)
5505 ->dyn_relocs != NULL));
5506
25dbc73a
AM
5507 /* Clear procedure linkage table information for any symbol that
5508 won't need a .plt entry. */
a6aa5195
AM
5509 struct plt_entry *ent;
5510 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5511 if (ent->plt.refcount > 0)
5512 break;
5513 if (ent == NULL
529fe20e 5514 || (h->type != STT_GNU_IFUNC && local))
252b5132 5515 {
25dbc73a 5516 /* A PLT entry is not required/allowed when:
252b5132 5517
25dbc73a
AM
5518 1. We are not using ld.so; because then the PLT entry
5519 can't be set up, so we can't use one. In this case,
5520 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5521
25dbc73a
AM
5522 2. GC has rendered the entry unused.
5523
5524 3. We know for certain that a call to this symbol
5525 will go to this object, or will remain undefined. */
a6aa5195 5526 h->plt.plist = NULL;
25dbc73a 5527 h->needs_plt = 0;
d1eca1e4 5528 h->pointer_equality_needed = 0;
25dbc73a 5529 }
625af618
AM
5530 else
5531 {
d1eca1e4
AM
5532 /* Taking a function's address in a read/write section
5533 doesn't require us to define the function symbol in the
1009ef28 5534 executable on a plt call stub. A dynamic reloc can
f0158f44
AM
5535 be used instead, giving better runtime performance.
5536 (Calls via that function pointer don't need to bounce
5537 through the plt call stub.) Similarly, use a dynamic
5538 reloc for a weak reference when possible, allowing the
5539 resolution of the symbol to be set at load time rather
5540 than link time. */
5541 if ((h->pointer_equality_needed
3988aed5
AM
5542 || (h->non_got_ref
5543 && !h->ref_regular_nonweak
5544 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1009ef28
AM
5545 && !htab->is_vxworks
5546 && !ppc_elf_hash_entry (h)->has_sda_refs
98bbb1b8 5547 && !readonly_dynrelocs (h))
d1eca1e4
AM
5548 {
5549 h->pointer_equality_needed = 0;
3988aed5
AM
5550 /* If we haven't seen a branch reloc then we don't need
5551 a plt entry. */
5552 if (!h->needs_plt)
5553 h->plt.plist = NULL;
d1eca1e4 5554 }
529fe20e
AM
5555 else
5556 /* We are going to be defining the function symbol on the
5557 plt stub, so no dyn_relocs needed when non-pic. */
5558 h->non_got_ref = 0;
625af618 5559 }
d3e454b9 5560 h->protected_def = 0;
3988aed5 5561 /* Function symbols can't have copy relocs. */
25dbc73a 5562 return TRUE;
252b5132 5563 }
25dbc73a 5564 else
a6aa5195 5565 h->plt.plist = NULL;
252b5132 5566
25dbc73a
AM
5567 /* If this is a weak symbol, and there is a real definition, the
5568 processor independent code will have arranged for us to see the
5569 real definition first, and we can just use the same value. */
60d67dc8 5570 if (h->is_weakalias)
252b5132 5571 {
60d67dc8
AM
5572 struct elf_link_hash_entry *def = weakdef (h);
5573 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5574 h->root.u.def.section = def->root.u.def.section;
5575 h->root.u.def.value = def->root.u.def.value;
25dbc73a 5576 if (ELIMINATE_COPY_RELOCS)
60d67dc8 5577 h->non_got_ref = def->non_got_ref;
25dbc73a
AM
5578 return TRUE;
5579 }
dc810e39 5580
25dbc73a
AM
5581 /* This is a reference to a symbol defined by a dynamic object which
5582 is not a function. */
252b5132 5583
25dbc73a
AM
5584 /* If we are creating a shared library, we must presume that the
5585 only references to the symbol are via the global offset table.
5586 For such cases we need not do anything here; the relocations will
5587 be handled correctly by relocate_section. */
0e1862bb 5588 if (bfd_link_pic (info))
d3e454b9
AM
5589 {
5590 h->protected_def = 0;
5591 return TRUE;
5592 }
252b5132 5593
25dbc73a
AM
5594 /* If there are no references to this symbol that do not use the
5595 GOT, we don't need to generate a copy reloc. */
5596 if (!h->non_got_ref)
d3e454b9
AM
5597 {
5598 h->protected_def = 0;
5599 return TRUE;
5600 }
5601
5602 /* Protected variables do not work with .dynbss. The copy in
5603 .dynbss won't be used by the shared library with the protected
5604 definition for the variable. Editing to PIC, or text relocations
5605 are preferable to an incorrect program. */
5606 if (h->protected_def)
5607 {
5608 if (ELIMINATE_COPY_RELOCS
5609 && ppc_elf_hash_entry (h)->has_addr16_ha
5610 && ppc_elf_hash_entry (h)->has_addr16_lo
5611 && htab->params->pic_fixup == 0
5612 && info->disable_target_specific_optimizations <= 1)
5613 htab->params->pic_fixup = 1;
d3e454b9
AM
5614 return TRUE;
5615 }
25dbc73a 5616
a127494f
AM
5617 /* If -z nocopyreloc was given, we won't generate them either. */
5618 if (info->nocopyreloc)
529fe20e 5619 return TRUE;
a127494f 5620
cfd2c773
NS
5621 /* If we didn't find any dynamic relocs in read-only sections, then
5622 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5623 We can't do this if there are any small data relocations. This
5624 doesn't work on VxWorks, where we can not have dynamic
5625 relocations (other than copy and jump slot relocations) in an
5626 executable. */
4dc4a9a5 5627 if (ELIMINATE_COPY_RELOCS
cfd2c773 5628 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5629 && !htab->is_vxworks
5630 && !h->def_regular
98bbb1b8 5631 && !readonly_dynrelocs (h))
529fe20e 5632 return TRUE;
252b5132 5633
25dbc73a
AM
5634 /* We must allocate the symbol in our .dynbss section, which will
5635 become part of the .bss section of the executable. There will be
5636 an entry for this symbol in the .dynsym section. The dynamic
5637 object will contain position independent code, so all references
5638 from the dynamic object to this symbol will go through the global
5639 offset table. The dynamic linker will use the .dynsym entry to
5640 determine the address it must put in the global offset table, so
5641 both the dynamic object and the regular object will refer to the
5642 same memory location for the variable.
5643
4dc4a9a5
DJ
5644 Of course, if the symbol is referenced using SDAREL relocs, we
5645 must instead allocate it in .sbss. */
25dbc73a 5646
4dc4a9a5 5647 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5648 s = htab->dynsbss;
5474d94f
AM
5649 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5650 s = htab->elf.sdynrelro;
25dbc73a 5651 else
9d19e4fd 5652 s = htab->elf.sdynbss;
25dbc73a
AM
5653 BFD_ASSERT (s != NULL);
5654
5655 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5656 copy the initial value out of the dynamic object and into the
5657 runtime process image. We need to remember the offset into the
5658 .rela.bss section we are going to use. */
1d7e9d18 5659 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5660 {
5661 asection *srel;
5662
4dc4a9a5 5663 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5664 srel = htab->relsbss;
5474d94f
AM
5665 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5666 srel = htab->elf.sreldynrelro;
25dbc73a 5667 else
9d19e4fd 5668 srel = htab->elf.srelbss;
25dbc73a
AM
5669 BFD_ASSERT (srel != NULL);
5670 srel->size += sizeof (Elf32_External_Rela);
5671 h->needs_copy = 1;
5672 }
7619e7c7 5673
529fe20e
AM
5674 /* We no longer want dyn_relocs. */
5675 h->non_got_ref = 0;
6cabe1ea 5676 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5677}
5678\f
ac39eb42
AM
5679/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5680 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5681 specifying the addend on the plt relocation. For -fpic code, the sym
5682 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5683 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5684
5685static bfd_boolean
5686add_stub_sym (struct plt_entry *ent,
5687 struct elf_link_hash_entry *h,
ac39eb42 5688 struct bfd_link_info *info)
0ba07910
AM
5689{
5690 struct elf_link_hash_entry *sh;
5691 size_t len1, len2, len3;
5692 char *name;
ac39eb42
AM
5693 const char *stub;
5694 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5695
0e1862bb 5696 if (bfd_link_pic (info))
ac39eb42
AM
5697 stub = ".plt_pic32.";
5698 else
5699 stub = ".plt_call32.";
0ba07910
AM
5700
5701 len1 = strlen (h->root.root.string);
ac39eb42 5702 len2 = strlen (stub);
0ba07910
AM
5703 len3 = 0;
5704 if (ent->sec)
5705 len3 = strlen (ent->sec->name);
ac39eb42 5706 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5707 if (name == NULL)
5708 return FALSE;
5709 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5710 if (ent->sec)
5711 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5712 memcpy (name + 8 + len3, stub, len2);
5713 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5714 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5715 if (sh == NULL)
5716 return FALSE;
5717 if (sh->root.type == bfd_link_hash_new)
5718 {
5719 sh->root.type = bfd_link_hash_defined;
5720 sh->root.u.def.section = htab->glink;
5721 sh->root.u.def.value = ent->glink_offset;
5722 sh->ref_regular = 1;
5723 sh->def_regular = 1;
5724 sh->ref_regular_nonweak = 1;
5725 sh->forced_local = 1;
5726 sh->non_elf = 0;
2ec55de3 5727 sh->root.linker_def = 1;
0ba07910
AM
5728 }
5729 return TRUE;
5730}
5731
3b36f7e6
AM
5732/* Allocate NEED contiguous space in .got, and return the offset.
5733 Handles allocation of the got header when crossing 32k. */
5734
5735static bfd_vma
5736allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5737{
5738 bfd_vma where;
4a3dc543 5739 unsigned int max_before_header;
3b36f7e6 5740
4a3dc543 5741 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5742 {
ce558b89
AM
5743 where = htab->elf.sgot->size;
5744 htab->elf.sgot->size += need;
9d8504b1 5745 }
3b36f7e6
AM
5746 else
5747 {
4a3dc543
RS
5748 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5749 if (need <= htab->got_gap)
3b36f7e6 5750 {
4a3dc543
RS
5751 where = max_before_header - htab->got_gap;
5752 htab->got_gap -= need;
5753 }
5754 else
5755 {
ce558b89
AM
5756 if (htab->elf.sgot->size + need > max_before_header
5757 && htab->elf.sgot->size <= max_before_header)
4a3dc543 5758 {
ce558b89
AM
5759 htab->got_gap = max_before_header - htab->elf.sgot->size;
5760 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 5761 }
ce558b89
AM
5762 where = htab->elf.sgot->size;
5763 htab->elf.sgot->size += need;
3b36f7e6 5764 }
3b36f7e6
AM
5765 }
5766 return where;
5767}
5768
f15d0b54
AM
5769/* Calculate size of GOT entries for symbol given its TLS_MASK.
5770 TLS_LD is excluded because those go in a special GOT slot. */
5771
5772static inline unsigned int
5773got_entries_needed (int tls_mask)
5774{
5775 unsigned int need;
5776 if ((tls_mask & TLS_TLS) == 0)
5777 need = 4;
5778 else
5779 {
5780 need = 0;
5781 if ((tls_mask & TLS_GD) != 0)
5782 need += 8;
5783 if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5784 need += 4;
5785 if ((tls_mask & TLS_DTPREL) != 0)
5786 need += 4;
5787 }
5788 return need;
5789}
5790
5791/* Calculate size of relocs needed for symbol given its TLS_MASK and
5792 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated at
5793 link time. */
5794
5795static inline unsigned int
5796got_relocs_needed (int tls_mask, unsigned int need, bfd_boolean known)
5797{
5798 /* All the entries we allocated need relocs.
5799 Except IE in executable with a local symbol. We could also omit
5800 the DTPREL reloc on the second word of a GD entry under the same
5801 condition as that for IE, but ld.so needs to differentiate
5802 LD and GD entries. */
5803 if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0 && known)
5804 need -= 4;
5805 return need * sizeof (Elf32_External_Rela) / 4;
5806}
5807
46434633 5808/* If H is undefined, make it dynamic if that makes sense. */
f0158f44
AM
5809
5810static bfd_boolean
46434633
AM
5811ensure_undef_dynamic (struct bfd_link_info *info,
5812 struct elf_link_hash_entry *h)
f0158f44
AM
5813{
5814 struct elf_link_hash_table *htab = elf_hash_table (info);
5815
5816 if (htab->dynamic_sections_created
46434633
AM
5817 && ((info->dynamic_undefined_weak != 0
5818 && h->root.type == bfd_link_hash_undefweak)
5819 || h->root.type == bfd_link_hash_undefined)
f0158f44
AM
5820 && h->dynindx == -1
5821 && !h->forced_local
5822 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
5823 return bfd_elf_link_record_dynamic_symbol (info, h);
5824 return TRUE;
5825}
5826
25dbc73a 5827/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5828
b34976b6 5829static bfd_boolean
25dbc73a 5830allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5831{
25dbc73a
AM
5832 struct bfd_link_info *info = inf;
5833 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5834 struct ppc_elf_link_hash_table *htab;
6061a67d 5835 struct elf_dyn_relocs *p;
f0158f44 5836 bfd_boolean dyn;
252b5132 5837
25dbc73a 5838 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5839 return TRUE;
252b5132 5840
7619e7c7 5841 htab = ppc_elf_hash_table (info);
25dbc73a 5842 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
5843 if (eh->elf.got.refcount > 0
5844 || (ELIMINATE_COPY_RELOCS
5845 && !eh->elf.def_regular
5846 && eh->elf.protected_def
5847 && eh->has_addr16_ha
5848 && eh->has_addr16_lo
5849 && htab->params->pic_fixup > 0))
25dbc73a 5850 {
d6e14abc
AM
5851 unsigned int need;
5852
46434633
AM
5853 /* Make sure this symbol is output as a dynamic symbol. */
5854 if (!ensure_undef_dynamic (info, &eh->elf))
f0158f44 5855 return FALSE;
252b5132 5856
d6e14abc 5857 need = 0;
f15d0b54 5858 if ((eh->tls_mask & TLS_LD) != 0)
25dbc73a 5859 {
f15d0b54
AM
5860 if (!eh->elf.def_dynamic)
5861 /* We'll just use htab->tlsld_got.offset. This should
5862 always be the case. It's a little odd if we have
5863 a local dynamic reloc against a non-local symbol. */
5864 htab->tlsld_got.refcount += 1;
5865 else
d6e14abc 5866 need += 8;
d6e14abc 5867 }
f15d0b54 5868 need += got_entries_needed (eh->tls_mask);
d6e14abc
AM
5869 if (need == 0)
5870 eh->elf.got.offset = (bfd_vma) -1;
5871 else
5872 {
3b36f7e6 5873 eh->elf.got.offset = allocate_got (htab, need);
0e1862bb 5874 if ((bfd_link_pic (info)
f0158f44
AM
5875 || (htab->elf.dynamic_sections_created
5876 && eh->elf.dynindx != -1
5877 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
21d68fcd 5878 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
252b5132 5879 {
f15d0b54
AM
5880 asection *rsec;
5881 bfd_boolean tprel_known = (bfd_link_executable (info)
5882 && SYMBOL_REFERENCES_LOCAL (info,
5883 &eh->elf));
5884
5885 need = got_relocs_needed (eh->tls_mask, need, tprel_known);
5886 if ((eh->tls_mask & TLS_LD) != 0 && eh->elf.def_dynamic)
5887 need -= sizeof (Elf32_External_Rela);
5888 rsec = htab->elf.srelgot;
0bed072f 5889 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 5890 rsec = htab->elf.irelplt;
f15d0b54 5891 rsec->size += need;
252b5132 5892 }
25dbc73a
AM
5893 }
5894 }
5895 else
5896 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5897
954b63d4
AM
5898 /* If no dynamic sections we can't have dynamic relocs, except for
5899 IFUNCs which are handled even in static executables. */
f0158f44
AM
5900 if (!htab->elf.dynamic_sections_created
5901 && h->type != STT_GNU_IFUNC)
5902 eh->dyn_relocs = NULL;
5903
529fe20e
AM
5904 /* Discard relocs on undefined symbols that must be local. */
5905 else if (h->root.type == bfd_link_hash_undefined
5906 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5907 eh->dyn_relocs = NULL;
5908
5909 /* Also discard relocs on undefined weak syms with non-default
5910 visibility, or when dynamic_undefined_weak says so. */
5911 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
5912 eh->dyn_relocs = NULL;
5913
f0158f44 5914 if (eh->dyn_relocs == NULL)
529fe20e 5915 h->non_got_ref = 0;
252b5132 5916
25dbc73a
AM
5917 /* In the shared -Bsymbolic case, discard space allocated for
5918 dynamic pc-relative relocs against symbols which turn out to be
5919 defined in regular objects. For the normal shared case, discard
5920 space for relocs that have become local due to symbol visibility
5921 changes. */
f0158f44 5922 else if (bfd_link_pic (info))
25dbc73a
AM
5923 {
5924 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5925 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
5926 generated via assembly. We want calls to protected symbols to
5927 resolve directly to the function rather than going via the plt.
5928 If people want function pointer comparisons to work as expected
5929 then they should avoid writing weird assembly. */
529fe20e 5930 if (SYMBOL_CALLS_LOCAL (info, h))
25dbc73a 5931 {
6061a67d 5932 struct elf_dyn_relocs **pp;
25dbc73a
AM
5933
5934 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5935 {
25dbc73a
AM
5936 p->count -= p->pc_count;
5937 p->pc_count = 0;
5938 if (p->count == 0)
5939 *pp = p->next;
5940 else
5941 pp = &p->next;
252b5132 5942 }
25dbc73a 5943 }
252b5132 5944
3348747a
NS
5945 if (htab->is_vxworks)
5946 {
6061a67d 5947 struct elf_dyn_relocs **pp;
3348747a
NS
5948
5949 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5950 {
5951 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5952 *pp = p->next;
5953 else
5954 pp = &p->next;
5955 }
5956 }
5957
954b63d4 5958 if (eh->dyn_relocs != NULL)
25dbc73a 5959 {
46434633
AM
5960 /* Make sure this symbol is output as a dynamic symbol. */
5961 if (!ensure_undef_dynamic (info, h))
f0158f44 5962 return FALSE;
25dbc73a
AM
5963 }
5964 }
5965 else if (ELIMINATE_COPY_RELOCS)
5966 {
f0158f44 5967 /* For the non-pic case, discard space for relocs against
25dbc73a
AM
5968 symbols which turn out to need copy relocs or are not
5969 dynamic. */
529fe20e
AM
5970 if (h->dynamic_adjusted
5971 && h->non_got_ref
d3e454b9 5972 && !h->def_regular
529fe20e 5973 && !ELF_COMMON_DEF_P (h)
d3e454b9
AM
5974 && !(h->protected_def
5975 && eh->has_addr16_ha
5976 && eh->has_addr16_lo
5977 && htab->params->pic_fixup > 0))
25dbc73a 5978 {
46434633
AM
5979 /* Make sure this symbol is output as a dynamic symbol. */
5980 if (!ensure_undef_dynamic (info, h))
f0158f44 5981 return FALSE;
7619e7c7 5982
f0158f44 5983 if (h->dynindx == -1)
529fe20e
AM
5984 {
5985 h->non_got_ref = 0;
5986 eh->dyn_relocs = NULL;
5987 }
25dbc73a 5988 }
f0158f44 5989 else
529fe20e
AM
5990 {
5991 h->non_got_ref = 0;
5992 eh->dyn_relocs = NULL;
5993 }
25dbc73a 5994 }
252b5132 5995
f0158f44 5996 /* Allocate space. */
25dbc73a
AM
5997 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5998 {
5999 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6000 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6001 sreloc = htab->elf.irelplt;
25dbc73a
AM
6002 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6003 }
252b5132 6004
f0158f44
AM
6005 /* Handle PLT relocs. Done last, after dynindx has settled. */
6006 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
6007 if (dyn || h->type == STT_GNU_IFUNC)
6008 {
6009 struct plt_entry *ent;
6010 bfd_boolean doneone = FALSE;
6011 bfd_vma plt_offset = 0, glink_offset = 0;
6012
6013 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6014 if (ent->plt.refcount > 0)
6015 {
6016 asection *s = htab->elf.splt;
6017
6018 if (!dyn)
6019 s = htab->elf.iplt;
6020
6021 if (htab->plt_type == PLT_NEW || !dyn)
6022 {
6023 if (!doneone)
6024 {
6025 plt_offset = s->size;
6026 s->size += 4;
6027 }
6028 ent->plt.offset = plt_offset;
6029
6030 s = htab->glink;
6031 if (!doneone || bfd_link_pic (info))
6032 {
6033 glink_offset = s->size;
6034 s->size += GLINK_ENTRY_SIZE;
6035 if (h == htab->tls_get_addr
6036 && !htab->params->no_tls_get_addr_opt)
6037 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
6038 }
6039 if (!doneone
6040 && !bfd_link_pic (info)
6041 && h->def_dynamic
6042 && !h->def_regular)
6043 {
6044 h->root.u.def.section = s;
6045 h->root.u.def.value = glink_offset;
6046 }
6047 ent->glink_offset = glink_offset;
6048
6049 if (htab->params->emit_stub_syms
6050 && !add_stub_sym (ent, h, info))
6051 return FALSE;
6052 }
6053 else
6054 {
6055 if (!doneone)
6056 {
6057 /* If this is the first .plt entry, make room
6058 for the special first entry. */
6059 if (s->size == 0)
6060 s->size += htab->plt_initial_entry_size;
6061
6062 /* The PowerPC PLT is actually composed of two
6063 parts, the first part is 2 words (for a load
6064 and a jump), and then there is a remaining
6065 word available at the end. */
6066 plt_offset = (htab->plt_initial_entry_size
6067 + (htab->plt_slot_size
6068 * ((s->size
6069 - htab->plt_initial_entry_size)
6070 / htab->plt_entry_size)));
6071
6072 /* If this symbol is not defined in a regular
6073 file, and we are not generating a shared
6074 library, then set the symbol to this location
6075 in the .plt. This is to avoid text
6076 relocations, and is required to make
6077 function pointers compare as equal between
6078 the normal executable and the shared library. */
6079 if (! bfd_link_pic (info)
6080 && h->def_dynamic
6081 && !h->def_regular)
6082 {
6083 h->root.u.def.section = s;
6084 h->root.u.def.value = plt_offset;
6085 }
6086
6087 /* Make room for this entry. */
6088 s->size += htab->plt_entry_size;
6089 /* After the 8192nd entry, room for two entries
6090 is allocated. */
6091 if (htab->plt_type == PLT_OLD
6092 && (s->size - htab->plt_initial_entry_size)
6093 / htab->plt_entry_size
6094 > PLT_NUM_SINGLE_ENTRIES)
6095 s->size += htab->plt_entry_size;
6096 }
6097 ent->plt.offset = plt_offset;
6098 }
6099
6100 /* We also need to make an entry in the .rela.plt section. */
6101 if (!doneone)
6102 {
6103 if (!dyn)
6104 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
6105 else
6106 {
6107 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6108
6109 if (htab->plt_type == PLT_VXWORKS)
6110 {
6111 /* Allocate space for the unloaded relocations. */
6112 if (!bfd_link_pic (info)
6113 && htab->elf.dynamic_sections_created)
6114 {
6115 if (ent->plt.offset
6116 == (bfd_vma) htab->plt_initial_entry_size)
6117 {
6118 htab->srelplt2->size
6119 += (sizeof (Elf32_External_Rela)
6120 * VXWORKS_PLTRESOLVE_RELOCS);
6121 }
6122
6123 htab->srelplt2->size
6124 += (sizeof (Elf32_External_Rela)
6125 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6126 }
6127
6128 /* Every PLT entry has an associated GOT entry in
6129 .got.plt. */
6130 htab->elf.sgotplt->size += 4;
6131 }
6132 }
6133 doneone = TRUE;
6134 }
6135 }
6136 else
6137 ent->plt.offset = (bfd_vma) -1;
6138
6139 if (!doneone)
6140 {
6141 h->plt.plist = NULL;
6142 h->needs_plt = 0;
6143 }
6144 }
6145 else
6146 {
6147 h->plt.plist = NULL;
6148 h->needs_plt = 0;
6149 }
6150
25dbc73a
AM
6151 return TRUE;
6152}
7619e7c7 6153
625af618
AM
6154/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6155 read-only sections. */
7619e7c7 6156
25dbc73a 6157static bfd_boolean
0caf6c82 6158maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
25dbc73a 6159{
98bbb1b8 6160 asection *sec;
0caf6c82 6161
25dbc73a
AM
6162 if (h->root.type == bfd_link_hash_indirect)
6163 return TRUE;
252b5132 6164
98bbb1b8
AM
6165 sec = readonly_dynrelocs (h);
6166 if (sec != NULL)
25dbc73a 6167 {
98bbb1b8
AM
6168 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
6169
0caf6c82 6170 info->flags |= DF_TEXTREL;
98bbb1b8
AM
6171 info->callbacks->minfo
6172 (_("%B: dynamic relocation in read-only section `%A'\n"),
6173 sec->owner, sec);
ee05f2fe 6174
625af618
AM
6175 /* Not an error, just cut short the traversal. */
6176 return FALSE;
25dbc73a
AM
6177 }
6178 return TRUE;
6179}
6180
6177242a
AM
6181static const unsigned char glink_eh_frame_cie[] =
6182{
6183 0, 0, 0, 16, /* length. */
6184 0, 0, 0, 0, /* id. */
6185 1, /* CIE version. */
6186 'z', 'R', 0, /* Augmentation string. */
6187 4, /* Code alignment. */
6188 0x7c, /* Data alignment. */
6189 65, /* RA reg. */
6190 1, /* Augmentation size. */
6191 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6192 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6193};
6194
25dbc73a
AM
6195/* Set the sizes of the dynamic sections. */
6196
6197static bfd_boolean
93d1b056 6198ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6199 struct bfd_link_info *info)
6200{
6201 struct ppc_elf_link_hash_table *htab;
6202 asection *s;
6203 bfd_boolean relocs;
6204 bfd *ibfd;
7fce784e 6205
252b5132 6206#ifdef DEBUG
25dbc73a 6207 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6208#endif
252b5132 6209
25dbc73a
AM
6210 htab = ppc_elf_hash_table (info);
6211 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6212
25dbc73a
AM
6213 if (elf_hash_table (info)->dynamic_sections_created)
6214 {
6215 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6216 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6217 {
3d4d4302 6218 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6219 BFD_ASSERT (s != NULL);
6220 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6221 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6222 }
6223 }
252b5132 6224
4a3dc543 6225 if (htab->plt_type == PLT_OLD)
d7128ce4 6226 htab->got_header_size = 16;
4a3dc543 6227 else if (htab->plt_type == PLT_NEW)
d7128ce4 6228 htab->got_header_size = 12;
252b5132 6229
25dbc73a
AM
6230 /* Set up .got offsets for local syms, and space for local dynamic
6231 relocs. */
c72f2fb2 6232 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6233 {
6234 bfd_signed_vma *local_got;
6235 bfd_signed_vma *end_local_got;
e054468f
AM
6236 struct plt_entry **local_plt;
6237 struct plt_entry **end_local_plt;
25dbc73a
AM
6238 char *lgot_masks;
6239 bfd_size_type locsymcount;
6240 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6241
0c8d6e5c 6242 if (!is_ppc_elf (ibfd))
25dbc73a 6243 continue;
7fce784e 6244
25dbc73a
AM
6245 for (s = ibfd->sections; s != NULL; s = s->next)
6246 {
f95f8542 6247 struct ppc_dyn_relocs *p;
252b5132 6248
f95f8542 6249 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6250 elf_section_data (s)->local_dynrel);
6251 p != NULL;
6252 p = p->next)
6253 {
6254 if (!bfd_is_abs_section (p->sec)
6255 && bfd_is_abs_section (p->sec->output_section))
6256 {
6257 /* Input section has been discarded, either because
6258 it is a copy of a linkonce section or due to
6259 linker script /DISCARD/, so we'll be discarding
6260 the relocs too. */
7fce784e 6261 }
3348747a
NS
6262 else if (htab->is_vxworks
6263 && strcmp (p->sec->output_section->name,
6264 ".tls_vars") == 0)
6265 {
6266 /* Relocations in vxworks .tls_vars sections are
6267 handled specially by the loader. */
6268 }
25dbc73a 6269 else if (p->count != 0)
7fce784e 6270 {
25f23106 6271 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6272 if (p->ifunc)
ce558b89 6273 sreloc = htab->elf.irelplt;
25f23106 6274 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6275 if ((p->sec->output_section->flags
6276 & (SEC_READONLY | SEC_ALLOC))
6277 == (SEC_READONLY | SEC_ALLOC))
0caf6c82
L
6278 {
6279 info->flags |= DF_TEXTREL;
6280 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
6281 p->sec->owner, p->sec);
6282 }
7fce784e 6283 }
252b5132 6284 }
252b5132 6285 }
252b5132 6286
25dbc73a
AM
6287 local_got = elf_local_got_refcounts (ibfd);
6288 if (!local_got)
6289 continue;
252b5132 6290
0ffa91dd 6291 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6292 locsymcount = symtab_hdr->sh_info;
6293 end_local_got = local_got + locsymcount;
e054468f
AM
6294 local_plt = (struct plt_entry **) end_local_got;
6295 end_local_plt = local_plt + locsymcount;
6296 lgot_masks = (char *) end_local_plt;
91d6fa6a 6297
25dbc73a
AM
6298 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6299 if (*local_got > 0)
6300 {
f15d0b54
AM
6301 unsigned int need;
6302 if ((*lgot_masks & TLS_LD) != 0)
6303 htab->tlsld_got.refcount += 1;
6304 need = got_entries_needed (*lgot_masks);
d6e14abc
AM
6305 if (need == 0)
6306 *local_got = (bfd_vma) -1;
25dbc73a
AM
6307 else
6308 {
3b36f7e6 6309 *local_got = allocate_got (htab, need);
0e1862bb 6310 if (bfd_link_pic (info))
0bed072f 6311 {
f15d0b54
AM
6312 asection *srel;
6313 bfd_boolean tprel_known = bfd_link_executable (info);
6314
6315 need = got_relocs_needed (*lgot_masks, need, tprel_known);
6316 srel = htab->elf.srelgot;
0bed072f 6317 if ((*lgot_masks & PLT_IFUNC) != 0)
ce558b89 6318 srel = htab->elf.irelplt;
f15d0b54 6319 srel->size += need;
0bed072f 6320 }
25dbc73a
AM
6321 }
6322 }
6323 else
6324 *local_got = (bfd_vma) -1;
e054468f
AM
6325
6326 if (htab->is_vxworks)
6327 continue;
6328
6329 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6330 for (; local_plt < end_local_plt; ++local_plt)
6331 {
6332 struct plt_entry *ent;
6333 bfd_boolean doneone = FALSE;
6334 bfd_vma plt_offset = 0, glink_offset = 0;
6335
6336 for (ent = *local_plt; ent != NULL; ent = ent->next)
6337 if (ent->plt.refcount > 0)
6338 {
ce558b89 6339 s = htab->elf.iplt;
e054468f
AM
6340
6341 if (!doneone)
6342 {
6343 plt_offset = s->size;
6344 s->size += 4;
6345 }
6346 ent->plt.offset = plt_offset;
6347
6348 s = htab->glink;
0e1862bb 6349 if (!doneone || bfd_link_pic (info))
e054468f
AM
6350 {
6351 glink_offset = s->size;
6352 s->size += GLINK_ENTRY_SIZE;
6353 }
6354 ent->glink_offset = glink_offset;
6355
6356 if (!doneone)
6357 {
ce558b89 6358 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6359 doneone = TRUE;
6360 }
6361 }
6362 else
6363 ent->plt.offset = (bfd_vma) -1;
6364 }
25dbc73a 6365 }
252b5132 6366
b7fcf6f6
AM
6367 /* Allocate space for global sym dynamic relocs. */
6368 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6369
3b36f7e6
AM
6370 if (htab->tlsld_got.refcount > 0)
6371 {
6372 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6373 if (bfd_link_pic (info))
ce558b89 6374 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6375 }
6376 else
6377 htab->tlsld_got.offset = (bfd_vma) -1;
6378
ce558b89 6379 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6380 {
6381 unsigned int g_o_t = 32768;
6382
4d962050
AM
6383 /* If we haven't allocated the header, do so now. When we get here,
6384 for old plt/got the got size will be 0 to 32764 (not allocated),
6385 or 32780 to 65536 (header allocated). For new plt/got, the
6386 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6387 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6388 {
ce558b89 6389 g_o_t = htab->elf.sgot->size;
4a3dc543 6390 if (htab->plt_type == PLT_OLD)
4d962050 6391 g_o_t += 4;
ce558b89 6392 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6393 }
3b36f7e6
AM
6394
6395 htab->elf.hgot->root.u.def.value = g_o_t;
6396 }
0e1862bb 6397 if (bfd_link_pic (info))
bd6c6e2b
AM
6398 {
6399 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6400
6401 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6402 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6403 }
15bfcc77
AM
6404 if (info->emitrelocations)
6405 {
6406 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6407
6408 if (sda != NULL && sda->ref_regular)
6409 sda->root.u.def.section->flags |= SEC_KEEP;
6410 sda = htab->sdata[1].sym;
6411 if (sda != NULL && sda->ref_regular)
6412 sda->root.u.def.section->flags |= SEC_KEEP;
6413 }
3b36f7e6 6414
e054468f
AM
6415 if (htab->glink != NULL
6416 && htab->glink->size != 0
6417 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6418 {
6419 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6420 /* Space for the branch table. ??? We don't need entries for
6421 non-dynamic symbols in this table. This case can arise with
6422 static ifuncs or forced local ifuncs. */
86b9da88
AM
6423 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6424 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6425 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6426 ? 63 : 15);
d7128ce4 6427 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6428
5446cbdf 6429 if (htab->params->emit_stub_syms)
0ba07910
AM
6430 {
6431 struct elf_link_hash_entry *sh;
6432 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6433 TRUE, FALSE, FALSE);
6434 if (sh == NULL)
6435 return FALSE;
6436 if (sh->root.type == bfd_link_hash_new)
6437 {
6438 sh->root.type = bfd_link_hash_defined;
6439 sh->root.u.def.section = htab->glink;
6440 sh->root.u.def.value = htab->glink_pltresolve;
6441 sh->ref_regular = 1;
6442 sh->def_regular = 1;
6443 sh->ref_regular_nonweak = 1;
6444 sh->forced_local = 1;
6445 sh->non_elf = 0;
2ec55de3 6446 sh->root.linker_def = 1;
0ba07910
AM
6447 }
6448 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6449 TRUE, FALSE, FALSE);
6450 if (sh == NULL)
6451 return FALSE;
6452 if (sh->root.type == bfd_link_hash_new)
6453 {
6454 sh->root.type = bfd_link_hash_defined;
6455 sh->root.u.def.section = htab->glink;
6456 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6457 sh->ref_regular = 1;
6458 sh->def_regular = 1;
6459 sh->ref_regular_nonweak = 1;
6460 sh->forced_local = 1;
6461 sh->non_elf = 0;
2ec55de3 6462 sh->root.linker_def = 1;
0ba07910
AM
6463 }
6464 }
d7128ce4
AM
6465 }
6466
6177242a
AM
6467 if (htab->glink != NULL
6468 && htab->glink->size != 0
6469 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6470 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6471 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6472 {
6473 s = htab->glink_eh_frame;
6474 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6475 if (bfd_link_pic (info))
6177242a
AM
6476 {
6477 s->size += 4;
6478 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6479 s->size += 4;
6480 }
6481 }
6482
25dbc73a
AM
6483 /* We've now determined the sizes of the various dynamic sections.
6484 Allocate memory for them. */
6485 relocs = FALSE;
6486 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6487 {
9d8504b1
PB
6488 bfd_boolean strip_section = TRUE;
6489
25dbc73a
AM
6490 if ((s->flags & SEC_LINKER_CREATED) == 0)
6491 continue;
252b5132 6492
ce558b89
AM
6493 if (s == htab->elf.splt
6494 || s == htab->elf.sgot)
25dbc73a 6495 {
9d8504b1
PB
6496 /* We'd like to strip these sections if they aren't needed, but if
6497 we've exported dynamic symbols from them we must leave them.
6498 It's too late to tell BFD to get rid of the symbols. */
e054468f 6499 if (htab->elf.hplt != NULL)
9d8504b1 6500 strip_section = FALSE;
25dbc73a
AM
6501 /* Strip this section if we don't need it; see the
6502 comment below. */
6503 }
ce558b89 6504 else if (s == htab->elf.iplt
e054468f 6505 || s == htab->glink
6177242a 6506 || s == htab->glink_eh_frame
ce558b89 6507 || s == htab->elf.sgotplt
e054468f 6508 || s == htab->sbss
9d19e4fd 6509 || s == htab->elf.sdynbss
5474d94f 6510 || s == htab->elf.sdynrelro
15bfcc77 6511 || s == htab->dynsbss)
25dbc73a 6512 {
c9a2f333 6513 /* Strip these too. */
25dbc73a 6514 }
15bfcc77
AM
6515 else if (s == htab->sdata[0].section
6516 || s == htab->sdata[1].section)
6517 {
6518 strip_section = (s->flags & SEC_KEEP) == 0;
6519 }
a0f49396
NC
6520 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6521 ".rela"))
25dbc73a 6522 {
c456f082 6523 if (s->size != 0)
25dbc73a
AM
6524 {
6525 /* Remember whether there are any relocation sections. */
6526 relocs = TRUE;
252b5132 6527
25dbc73a
AM
6528 /* We use the reloc_count field as a counter if we need
6529 to copy relocs into the output file. */
6530 s->reloc_count = 0;
252b5132
RH
6531 }
6532 }
25dbc73a
AM
6533 else
6534 {
6535 /* It's not one of our sections, so don't allocate space. */
6536 continue;
6537 }
252b5132 6538
9d8504b1 6539 if (s->size == 0 && strip_section)
25dbc73a 6540 {
c456f082
AM
6541 /* If we don't need this section, strip it from the
6542 output file. This is mostly to handle .rela.bss and
6543 .rela.plt. We must create both sections in
6544 create_dynamic_sections, because they must be created
6545 before the linker maps input sections to output
6546 sections. The linker does that before
6547 adjust_dynamic_symbol is called, and it is that
6548 function which decides whether anything needs to go
6549 into these sections. */
8423293d 6550 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6551 continue;
6552 }
7fce784e 6553
d7128ce4 6554 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6555 continue;
6556
25dbc73a
AM
6557 /* Allocate memory for the section contents. */
6558 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6559 if (s->contents == NULL)
6560 return FALSE;
6561 }
252b5132 6562
25dbc73a 6563 if (htab->elf.dynamic_sections_created)
7619e7c7 6564 {
25dbc73a
AM
6565 /* Add some entries to the .dynamic section. We fill in the
6566 values later, in ppc_elf_finish_dynamic_sections, but we
6567 must add the entries now so that we get the correct size for
6568 the .dynamic section. The DT_DEBUG entry is filled in by the
6569 dynamic linker and used by the debugger. */
6570#define add_dynamic_entry(TAG, VAL) \
6571 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6572
0e1862bb 6573 if (bfd_link_executable (info))
7619e7c7 6574 {
25dbc73a
AM
6575 if (!add_dynamic_entry (DT_DEBUG, 0))
6576 return FALSE;
7619e7c7
AM
6577 }
6578
ce558b89 6579 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 6580 {
25dbc73a
AM
6581 if (!add_dynamic_entry (DT_PLTGOT, 0)
6582 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6583 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6584 || !add_dynamic_entry (DT_JMPREL, 0))
6585 return FALSE;
6586 }
7619e7c7 6587
c7e17e05
AM
6588 if (htab->plt_type == PLT_NEW
6589 && htab->glink != NULL
6590 && htab->glink->size != 0)
d7128ce4 6591 {
1fe44d79 6592 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6593 return FALSE;
5446cbdf 6594 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6595 && htab->tls_get_addr != NULL
6596 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6597 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6598 return FALSE;
d7128ce4
AM
6599 }
6600
25dbc73a
AM
6601 if (relocs)
6602 {
6603 if (!add_dynamic_entry (DT_RELA, 0)
6604 || !add_dynamic_entry (DT_RELASZ, 0)
6605 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6606 return FALSE;
6607 }
7619e7c7 6608
25dbc73a
AM
6609 /* If any dynamic relocs apply to a read-only section, then we
6610 need a DT_TEXTREL entry. */
6611 if ((info->flags & DF_TEXTREL) == 0)
625af618 6612 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6613 info);
7619e7c7 6614
25dbc73a
AM
6615 if ((info->flags & DF_TEXTREL) != 0)
6616 {
6617 if (!add_dynamic_entry (DT_TEXTREL, 0))
6618 return FALSE;
7619e7c7 6619 }
7a2b07ff
NS
6620 if (htab->is_vxworks
6621 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6622 return FALSE;
6623 }
25dbc73a
AM
6624#undef add_dynamic_entry
6625
7e01508c
AM
6626 if (htab->glink_eh_frame != NULL
6627 && htab->glink_eh_frame->contents != NULL)
6628 {
6629 unsigned char *p = htab->glink_eh_frame->contents;
6630 bfd_vma val;
6631
6632 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6633 /* CIE length (rewrite in case little-endian). */
6634 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6635 p += sizeof (glink_eh_frame_cie);
6636 /* FDE length. */
6637 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6638 bfd_put_32 (htab->elf.dynobj, val, p);
6639 p += 4;
6640 /* CIE pointer. */
6641 val = p - htab->glink_eh_frame->contents;
6642 bfd_put_32 (htab->elf.dynobj, val, p);
6643 p += 4;
6644 /* Offset to .glink. Set later. */
6645 p += 4;
6646 /* .glink size. */
6647 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6648 p += 4;
6649 /* Augmentation. */
6650 p += 1;
6651
0e1862bb 6652 if (bfd_link_pic (info)
7e01508c
AM
6653 && htab->elf.dynamic_sections_created)
6654 {
6655 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6656 if (adv < 64)
6657 *p++ = DW_CFA_advance_loc + adv;
6658 else if (adv < 256)
6659 {
6660 *p++ = DW_CFA_advance_loc1;
6661 *p++ = adv;
6662 }
6663 else if (adv < 65536)
6664 {
6665 *p++ = DW_CFA_advance_loc2;
6666 bfd_put_16 (htab->elf.dynobj, adv, p);
6667 p += 2;
6668 }
6669 else
6670 {
6671 *p++ = DW_CFA_advance_loc4;
6672 bfd_put_32 (htab->elf.dynobj, adv, p);
6673 p += 4;
6674 }
6675 *p++ = DW_CFA_register;
6676 *p++ = 65;
6677 p++;
6678 *p++ = DW_CFA_advance_loc + 4;
6679 *p++ = DW_CFA_restore_extended;
6680 *p++ = 65;
6681 }
6682 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6683 == htab->glink_eh_frame->size);
6684 }
6685
7619e7c7
AM
6686 return TRUE;
6687}
0eb4a168 6688
93d1b056
AM
6689/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6690 if it looks like nothing is using them. */
6691
6692static void
6693maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6694{
6695 struct elf_link_hash_entry *sda = lsect->sym;
6696
6697 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6698 {
6699 asection *s;
6700
6701 s = bfd_get_section_by_name (output_bfd, lsect->name);
6702 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6703 {
6704 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6705 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6706 {
6707 sda->def_regular = 0;
6708 /* This is somewhat magic. See elf_link_output_extsym. */
6709 sda->ref_dynamic = 1;
6710 sda->forced_local = 0;
6711 }
6712 }
6713 }
6714}
6715
6716void
6717ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6718{
6719 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6720
6721 if (htab != NULL)
6722 {
6723 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6724 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6725 }
6726}
6727
6728
0eb4a168
AM
6729/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6730
6731static bfd_boolean
6732ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6733{
6734 if (h->plt.plist != NULL
6735 && !h->def_regular
6736 && (!h->pointer_equality_needed
6737 || !h->ref_regular_nonweak))
6738 return FALSE;
6739
6740 return _bfd_elf_hash_symbol (h);
6741}
25dbc73a
AM
6742\f
6743#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6744
01017ef8
NS
6745/* Relaxation trampolines. r12 is available for clobbering (r11, is
6746 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6747static const int shared_stub_entry[] =
6748 {
6749 0x7c0802a6, /* mflr 0 */
6750 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6751 0x7d8802a6, /* mflr 12 */
6752 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6753 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6754 0x7c0803a6, /* mtlr 0 */
01017ef8 6755 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6756 0x4e800420, /* bctr */
6757 };
6758
6759static const int stub_entry[] =
6760 {
01017ef8
NS
6761 0x3d800000, /* lis 12,xxx@ha */
6762 0x398c0000, /* addi 12,12,xxx@l */
6763 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6764 0x4e800420, /* bctr */
6765 };
6766
5446cbdf
AM
6767struct ppc_elf_relax_info
6768{
6769 unsigned int workaround_size;
d3e454b9 6770 unsigned int picfixup_size;
5446cbdf
AM
6771};
6772
6773/* This function implements long branch trampolines, and the ppc476
6774 icache bug workaround. Any section needing trampolines or patch
6775 space for the workaround has its size extended so that we can
53291d1f 6776 add trampolines at the end of the section. */
5446cbdf 6777
25dbc73a
AM
6778static bfd_boolean
6779ppc_elf_relax_section (bfd *abfd,
6780 asection *isec,
6781 struct bfd_link_info *link_info,
6782 bfd_boolean *again)
6783{
d3e454b9 6784 struct one_branch_fixup
25dbc73a 6785 {
d3e454b9 6786 struct one_branch_fixup *next;
25dbc73a 6787 asection *tsec;
01017ef8
NS
6788 /* Final link, can use the symbol offset. For a
6789 relocatable link we use the symbol's index. */
25dbc73a
AM
6790 bfd_vma toff;
6791 bfd_vma trampoff;
6792 };
7619e7c7 6793
25dbc73a
AM
6794 Elf_Internal_Shdr *symtab_hdr;
6795 bfd_byte *contents = NULL;
6796 Elf_Internal_Sym *isymbuf = NULL;
6797 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6798 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6799 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6800 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6801 unsigned changes = 0;
5446cbdf 6802 bfd_boolean workaround_change;
d7128ce4 6803 struct ppc_elf_link_hash_table *htab;
d3e454b9 6804 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6805 asection *got2;
50248c89 6806 bfd_boolean maybe_pasted;
7619e7c7 6807
25dbc73a 6808 *again = FALSE;
7619e7c7 6809
5446cbdf 6810 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6811 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6812 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6813 || (isec->flags & SEC_LINKER_CREATED) != 0
6814 || isec->size < 4)
25dbc73a 6815 return TRUE;
7619e7c7 6816
c8a1f254
NS
6817 /* We cannot represent the required PIC relocs in the output, so don't
6818 do anything. The linker doesn't support mixing -shared and -r
6819 anyway. */
0e1862bb 6820 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6821 return TRUE;
5b914448 6822
5446cbdf
AM
6823 htab = ppc_elf_hash_table (link_info);
6824 if (htab == NULL)
6825 return TRUE;
6826
6827 isec->size = (isec->size + 3) & -4;
6828 if (isec->rawsize == 0)
6829 isec->rawsize = isec->size;
6830 trampbase = isec->size;
6831
53291d1f
AM
6832 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6833 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6834 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6835
d3e454b9
AM
6836 if (htab->params->ppc476_workaround
6837 || htab->params->pic_fixup > 0)
5446cbdf
AM
6838 {
6839 if (elf_section_data (isec)->sec_info == NULL)
6840 {
5446cbdf
AM
6841 elf_section_data (isec)->sec_info
6842 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6843 if (elf_section_data (isec)->sec_info == NULL)
6844 return FALSE;
6845 }
6846 relax_info = elf_section_data (isec)->sec_info;
6847 trampbase -= relax_info->workaround_size;
6848 }
6849
50248c89
AM
6850 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6851 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6852 /* Space for a branch around any trampolines. */
5446cbdf
AM
6853 trampoff = trampbase;
6854 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6855 trampoff += 4;
7619e7c7 6856
0ffa91dd 6857 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6858 picfixup_size = 0;
6859 if (htab->params->branch_trampolines
6860 || htab->params->pic_fixup > 0)
7619e7c7 6861 {
5446cbdf
AM
6862 /* Get a copy of the native relocations. */
6863 if (isec->reloc_count != 0)
25dbc73a 6864 {
5446cbdf
AM
6865 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6866 link_info->keep_memory);
6867 if (internal_relocs == NULL)
6868 goto error_return;
25dbc73a 6869 }
7619e7c7 6870
5446cbdf
AM
6871 got2 = bfd_get_section_by_name (abfd, ".got2");
6872
6873 irelend = internal_relocs + isec->reloc_count;
6874 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 6875 {
5446cbdf
AM
6876 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6877 bfd_vma toff, roff;
6878 asection *tsec;
d3e454b9 6879 struct one_branch_fixup *f;
5446cbdf 6880 size_t insn_offset = 0;
d3e454b9 6881 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
6882 bfd_byte *hit_addr;
6883 unsigned long t0;
6884 struct elf_link_hash_entry *h;
6885 struct plt_entry **plist;
6886 unsigned char sym_type;
6887
6888 switch (r_type)
6889 {
6890 case R_PPC_REL24:
6891 case R_PPC_LOCAL24PC:
6892 case R_PPC_PLTREL24:
6893 max_branch_offset = 1 << 25;
6894 break;
6895
6896 case R_PPC_REL14:
6897 case R_PPC_REL14_BRTAKEN:
6898 case R_PPC_REL14_BRNTAKEN:
6899 max_branch_offset = 1 << 15;
6900 break;
7fce784e 6901
d3e454b9
AM
6902 case R_PPC_ADDR16_HA:
6903 if (htab->params->pic_fixup > 0)
6904 break;
6905 continue;
6906
5446cbdf
AM
6907 default:
6908 continue;
6909 }
6910
6911 /* Get the value of the symbol referred to by the reloc. */
6912 h = NULL;
6913 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 6914 {
5446cbdf
AM
6915 /* A local symbol. */
6916 Elf_Internal_Sym *isym;
6917
6918 /* Read this BFD's local symbols. */
25dbc73a 6919 if (isymbuf == NULL)
5446cbdf
AM
6920 {
6921 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6922 if (isymbuf == NULL)
6923 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6924 symtab_hdr->sh_info, 0,
6925 NULL, NULL, NULL);
6926 if (isymbuf == 0)
6927 goto error_return;
6928 }
6929 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6930 if (isym->st_shndx == SHN_UNDEF)
6931 tsec = bfd_und_section_ptr;
6932 else if (isym->st_shndx == SHN_ABS)
6933 tsec = bfd_abs_section_ptr;
6934 else if (isym->st_shndx == SHN_COMMON)
6935 tsec = bfd_com_section_ptr;
6936 else
6937 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6938
6939 toff = isym->st_value;
6940 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 6941 }
25dbc73a 6942 else
5446cbdf
AM
6943 {
6944 /* Global symbol handling. */
6945 unsigned long indx;
7fce784e 6946
5446cbdf
AM
6947 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6948 h = elf_sym_hashes (abfd)[indx];
7619e7c7 6949
5446cbdf
AM
6950 while (h->root.type == bfd_link_hash_indirect
6951 || h->root.type == bfd_link_hash_warning)
6952 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 6953
5446cbdf
AM
6954 if (h->root.type == bfd_link_hash_defined
6955 || h->root.type == bfd_link_hash_defweak)
6956 {
6957 tsec = h->root.u.def.section;
6958 toff = h->root.u.def.value;
6959 }
6960 else if (h->root.type == bfd_link_hash_undefined
6961 || h->root.type == bfd_link_hash_undefweak)
6962 {
6963 tsec = bfd_und_section_ptr;
0e1862bb 6964 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
6965 }
6966 else
6967 continue;
6968
9f7552cf
AM
6969 /* If this branch is to __tls_get_addr then we may later
6970 optimise away the call. We won't be needing a long-
6971 branch stub in that case. */
0e1862bb 6972 if (bfd_link_executable (link_info)
9f7552cf
AM
6973 && h == htab->tls_get_addr
6974 && irel != internal_relocs)
6975 {
6976 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
6977 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
6978 unsigned int tls_mask = 0;
6979
6980 /* The previous reloc should be one of R_PPC_TLSGD or
6981 R_PPC_TLSLD, or for older object files, a reloc
6982 on the __tls_get_addr arg setup insn. Get tls
6983 mask bits from the symbol on that reloc. */
6984 if (t_symndx < symtab_hdr->sh_info)
6985 {
6986 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6987
6988 if (local_got_offsets != NULL)
6989 {
6990 struct plt_entry **local_plt = (struct plt_entry **)
6991 (local_got_offsets + symtab_hdr->sh_info);
6992 char *lgot_masks = (char *)
6993 (local_plt + symtab_hdr->sh_info);
6994 tls_mask = lgot_masks[t_symndx];
6995 }
6996 }
6997 else
6998 {
6999 struct elf_link_hash_entry *th
7000 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7001
7002 while (th->root.type == bfd_link_hash_indirect
7003 || th->root.type == bfd_link_hash_warning)
7004 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7005
7006 tls_mask
7007 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7008 }
7009
7010 /* The mask bits tell us if the call will be
7011 optimised away. */
7012 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7013 && (t_rtype == R_PPC_TLSGD
7014 || t_rtype == R_PPC_GOT_TLSGD16
7015 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7016 continue;
7017 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7018 && (t_rtype == R_PPC_TLSLD
7019 || t_rtype == R_PPC_GOT_TLSLD16
7020 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7021 continue;
7022 }
7023
5446cbdf
AM
7024 sym_type = h->type;
7025 }
7619e7c7 7026
d3e454b9
AM
7027 if (r_type == R_PPC_ADDR16_HA)
7028 {
7029 if (h != NULL
7030 && !h->def_regular
7031 && h->protected_def
7032 && ppc_elf_hash_entry (h)->has_addr16_ha
7033 && ppc_elf_hash_entry (h)->has_addr16_lo)
7034 picfixup_size += 12;
7035 continue;
7036 }
7037
5446cbdf
AM
7038 /* The condition here under which we call find_plt_ent must
7039 match that in relocate_section. If we call find_plt_ent here
7040 but not in relocate_section, or vice versa, then the branch
7041 destination used here may be incorrect. */
7042 plist = NULL;
7043 if (h != NULL)
25dbc73a 7044 {
5446cbdf
AM
7045 /* We know is_branch_reloc (r_type) is true. */
7046 if (h->type == STT_GNU_IFUNC
7047 || r_type == R_PPC_PLTREL24)
7048 plist = &h->plt.plist;
25dbc73a 7049 }
5446cbdf
AM
7050 else if (sym_type == STT_GNU_IFUNC
7051 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7052 {
5446cbdf
AM
7053 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7054 struct plt_entry **local_plt = (struct plt_entry **)
7055 (local_got_offsets + symtab_hdr->sh_info);
7056 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7057 }
5446cbdf 7058 if (plist != NULL)
a9585d22 7059 {
5446cbdf
AM
7060 bfd_vma addend = 0;
7061 struct plt_entry *ent;
7062
0e1862bb 7063 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7064 addend = irel->r_addend;
7065 ent = find_plt_ent (plist, got2, addend);
7066 if (ent != NULL)
a9585d22 7067 {
5446cbdf
AM
7068 if (htab->plt_type == PLT_NEW
7069 || h == NULL
7070 || !htab->elf.dynamic_sections_created
7071 || h->dynindx == -1)
7072 {
7073 tsec = htab->glink;
7074 toff = ent->glink_offset;
7075 }
7076 else
7077 {
ce558b89 7078 tsec = htab->elf.splt;
5446cbdf
AM
7079 toff = ent->plt.offset;
7080 }
de972ffa
AM
7081 }
7082 }
de972ffa 7083
5446cbdf
AM
7084 /* If the branch and target are in the same section, you have
7085 no hope of adding stubs. We'll error out later should the
7086 branch overflow. */
7087 if (tsec == isec)
7088 continue;
25dbc73a 7089
5446cbdf
AM
7090 /* There probably isn't any reason to handle symbols in
7091 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7092 attribute for a code section, and we are only looking at
7093 branches. However, implement it correctly here as a
7094 reference for other target relax_section functions. */
7095 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7096 {
7097 /* At this stage in linking, no SEC_MERGE symbol has been
7098 adjusted, so all references to such symbols need to be
7099 passed through _bfd_merged_section_offset. (Later, in
7100 relocate_section, all SEC_MERGE symbols *except* for
7101 section symbols have been adjusted.)
7102
7103 gas may reduce relocations against symbols in SEC_MERGE
7104 sections to a relocation against the section symbol when
7105 the original addend was zero. When the reloc is against
7106 a section symbol we should include the addend in the
7107 offset passed to _bfd_merged_section_offset, since the
7108 location of interest is the original symbol. On the
7109 other hand, an access to "sym+addend" where "sym" is not
7110 a section symbol should not include the addend; Such an
7111 access is presumed to be an offset from "sym"; The
7112 location of interest is just "sym". */
7113 if (sym_type == STT_SECTION)
7114 toff += irel->r_addend;
7115
7116 toff
7117 = _bfd_merged_section_offset (abfd, &tsec,
7118 elf_section_data (tsec)->sec_info,
7119 toff);
7120
7121 if (sym_type != STT_SECTION)
7122 toff += irel->r_addend;
7123 }
7124 /* PLTREL24 addends are special. */
7125 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7126 toff += irel->r_addend;
7619e7c7 7127
5446cbdf 7128 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7129 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7130 && tsec == bfd_und_section_ptr)
7131 || tsec->output_section == NULL
7132 || (tsec->owner != NULL
7133 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7134 continue;
7619e7c7 7135
5446cbdf 7136 roff = irel->r_offset;
7de713b9 7137
5446cbdf
AM
7138 /* If the branch is in range, no need to do anything. */
7139 if (tsec != bfd_und_section_ptr
0e1862bb 7140 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7141 /* A relocatable link may have sections moved during
7142 final link, so do not presume they remain in range. */
7143 || tsec->output_section == isec->output_section))
7144 {
7145 bfd_vma symaddr, reladdr;
7619e7c7 7146
5446cbdf
AM
7147 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7148 reladdr = isec->output_section->vma + isec->output_offset + roff;
7149 if (symaddr - reladdr + max_branch_offset
7150 < 2 * max_branch_offset)
7151 continue;
7152 }
01017ef8 7153
5446cbdf 7154 /* Look for an existing fixup to this address. */
d3e454b9 7155 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7156 if (f->tsec == tsec && f->toff == toff)
7157 break;
252b5132 7158
5446cbdf
AM
7159 if (f == NULL)
7160 {
7161 size_t size;
7162 unsigned long stub_rtype;
25dbc73a 7163
5446cbdf
AM
7164 val = trampoff - roff;
7165 if (val >= max_branch_offset)
7166 /* Oh dear, we can't reach a trampoline. Don't try to add
7167 one. We'll report an error later. */
7168 continue;
252b5132 7169
0e1862bb 7170 if (bfd_link_pic (link_info))
5446cbdf
AM
7171 {
7172 size = 4 * ARRAY_SIZE (shared_stub_entry);
7173 insn_offset = 12;
7174 }
7175 else
7176 {
7177 size = 4 * ARRAY_SIZE (stub_entry);
7178 insn_offset = 0;
7179 }
7180 stub_rtype = R_PPC_RELAX;
ce558b89 7181 if (tsec == htab->elf.splt
5446cbdf
AM
7182 || tsec == htab->glink)
7183 {
7184 stub_rtype = R_PPC_RELAX_PLT;
7185 if (r_type == R_PPC_PLTREL24)
7186 stub_rtype = R_PPC_RELAX_PLTREL24;
7187 }
252b5132 7188
5446cbdf
AM
7189 /* Hijack the old relocation. Since we need two
7190 relocations for this use a "composite" reloc. */
7191 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7192 stub_rtype);
7193 irel->r_offset = trampoff + insn_offset;
7194 if (r_type == R_PPC_PLTREL24
7195 && stub_rtype != R_PPC_RELAX_PLTREL24)
7196 irel->r_addend = 0;
7197
7198 /* Record the fixup so we don't do it again this section. */
7199 f = bfd_malloc (sizeof (*f));
d3e454b9 7200 f->next = branch_fixups;
5446cbdf
AM
7201 f->tsec = tsec;
7202 f->toff = toff;
7203 f->trampoff = trampoff;
d3e454b9 7204 branch_fixups = f;
5446cbdf
AM
7205
7206 trampoff += size;
7207 changes++;
25dbc73a
AM
7208 }
7209 else
7210 {
5446cbdf
AM
7211 val = f->trampoff - roff;
7212 if (val >= max_branch_offset)
7213 continue;
252b5132 7214
5446cbdf
AM
7215 /* Nop out the reloc, since we're finalizing things here. */
7216 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7217 }
252b5132 7218
5446cbdf
AM
7219 /* Get the section contents. */
7220 if (contents == NULL)
25dbc73a 7221 {
5446cbdf
AM
7222 /* Get cached copy if it exists. */
7223 if (elf_section_data (isec)->this_hdr.contents != NULL)
7224 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7225 /* Go get them off disk. */
5446cbdf 7226 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7227 goto error_return;
7228 }
252b5132 7229
5446cbdf
AM
7230 /* Fix up the existing branch to hit the trampoline. */
7231 hit_addr = contents + roff;
7232 switch (r_type)
7233 {
7234 case R_PPC_REL24:
7235 case R_PPC_LOCAL24PC:
7236 case R_PPC_PLTREL24:
7237 t0 = bfd_get_32 (abfd, hit_addr);
7238 t0 &= ~0x3fffffc;
7239 t0 |= val & 0x3fffffc;
7240 bfd_put_32 (abfd, t0, hit_addr);
7241 break;
252b5132 7242
5446cbdf
AM
7243 case R_PPC_REL14:
7244 case R_PPC_REL14_BRTAKEN:
7245 case R_PPC_REL14_BRNTAKEN:
7246 t0 = bfd_get_32 (abfd, hit_addr);
7247 t0 &= ~0xfffc;
7248 t0 |= val & 0xfffc;
7249 bfd_put_32 (abfd, t0, hit_addr);
7250 break;
7251 }
25dbc73a 7252 }
252b5132 7253
d3e454b9 7254 while (branch_fixups != NULL)
25dbc73a 7255 {
d3e454b9
AM
7256 struct one_branch_fixup *f = branch_fixups;
7257 branch_fixups = branch_fixups->next;
25dbc73a
AM
7258 free (f);
7259 }
5446cbdf 7260 }
252b5132 7261
5446cbdf
AM
7262 workaround_change = FALSE;
7263 newsize = trampoff;
795bc6b3 7264 if (htab->params->ppc476_workaround
0e1862bb 7265 && (!bfd_link_relocatable (link_info)
795bc6b3 7266 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7267 {
7268 bfd_vma addr, end_addr;
7269 unsigned int crossings;
795bc6b3 7270 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7271
7272 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7273 end_addr = addr + trampoff;
5446cbdf 7274 addr &= -pagesize;
795bc6b3 7275 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7276 if (crossings != 0)
7277 {
7278 /* Keep space aligned, to ensure the patch code itself does
7279 not cross a page. Don't decrease size calculated on a
7280 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7281 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7282 newsize += crossings * 16;
7283 if (relax_info->workaround_size < newsize)
7284 {
7285 relax_info->workaround_size = newsize;
7286 workaround_change = TRUE;
5446cbdf
AM
7287 }
7288 /* Ensure relocate_section is called. */
7289 isec->flags |= SEC_RELOC;
7290 }
7291 newsize = trampoff + relax_info->workaround_size;
7292 }
7293
d3e454b9
AM
7294 if (htab->params->pic_fixup > 0)
7295 {
7296 picfixup_size -= relax_info->picfixup_size;
7297 if (picfixup_size != 0)
7298 relax_info->picfixup_size += picfixup_size;
7299 newsize += relax_info->picfixup_size;
7300 }
7301
7302 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7303 isec->size = newsize;
7304
25dbc73a
AM
7305 if (isymbuf != NULL
7306 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7307 {
25dbc73a
AM
7308 if (! link_info->keep_memory)
7309 free (isymbuf);
252b5132 7310 else
25dbc73a
AM
7311 {
7312 /* Cache the symbols for elf_link_input_bfd. */
7313 symtab_hdr->contents = (unsigned char *) isymbuf;
7314 }
252b5132
RH
7315 }
7316
25dbc73a
AM
7317 if (contents != NULL
7318 && elf_section_data (isec)->this_hdr.contents != contents)
7319 {
53291d1f 7320 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7321 free (contents);
7322 else
7323 {
7324 /* Cache the section contents for elf_link_input_bfd. */
7325 elf_section_data (isec)->this_hdr.contents = contents;
7326 }
7327 }
252b5132 7328
d3e454b9 7329 changes += picfixup_size;
9bc4e62b 7330 if (changes != 0)
25dbc73a 7331 {
9bc4e62b
NS
7332 /* Append sufficient NOP relocs so we can write out relocation
7333 information for the trampolines. */
d4730f92 7334 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7335 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7336 * sizeof (*new_relocs));
7337 unsigned ix;
5b914448 7338
9bc4e62b
NS
7339 if (!new_relocs)
7340 goto error_return;
7341 memcpy (new_relocs, internal_relocs,
7342 isec->reloc_count * sizeof (*new_relocs));
7343 for (ix = changes; ix--;)
7344 {
7345 irel = new_relocs + ix + isec->reloc_count;
7346
7347 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7348 }
7349 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7350 free (internal_relocs);
9bc4e62b
NS
7351 elf_section_data (isec)->relocs = new_relocs;
7352 isec->reloc_count += changes;
d4730f92
BS
7353 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7354 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7355 }
5446cbdf
AM
7356 else if (internal_relocs != NULL
7357 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7358 free (internal_relocs);
252b5132 7359
5446cbdf 7360 *again = changes != 0 || workaround_change;
b34976b6 7361 return TRUE;
25dbc73a
AM
7362
7363 error_return:
d3e454b9 7364 while (branch_fixups != NULL)
5446cbdf 7365 {
d3e454b9
AM
7366 struct one_branch_fixup *f = branch_fixups;
7367 branch_fixups = branch_fixups->next;
5446cbdf
AM
7368 free (f);
7369 }
25dbc73a
AM
7370 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7371 free (isymbuf);
7372 if (contents != NULL
7373 && elf_section_data (isec)->this_hdr.contents != contents)
7374 free (contents);
7375 if (internal_relocs != NULL
7376 && elf_section_data (isec)->relocs != internal_relocs)
7377 free (internal_relocs);
7378 return FALSE;
252b5132 7379}
252b5132 7380\f
8a696751
AM
7381/* What to do when ld finds relocations against symbols defined in
7382 discarded sections. */
7383
7384static unsigned int
7385ppc_elf_action_discarded (asection *sec)
7386{
7387 if (strcmp (".fixup", sec->name) == 0)
7388 return 0;
7389
7390 if (strcmp (".got2", sec->name) == 0)
7391 return 0;
7392
7393 return _bfd_elf_default_action_discarded (sec);
7394}
c9a2f333 7395\f
25dbc73a 7396/* Fill in the address for a pointer generated in a linker section. */
252b5132 7397
25dbc73a 7398static bfd_vma
76750a2f 7399elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7400 elf_linker_section_t *lsect,
7401 struct elf_link_hash_entry *h,
7402 bfd_vma relocation,
2bb04cf2 7403 const Elf_Internal_Rela *rel)
25dbc73a
AM
7404{
7405 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7406
25dbc73a 7407 BFD_ASSERT (lsect != NULL);
252b5132 7408
25dbc73a 7409 if (h != NULL)
252b5132 7410 {
25dbc73a
AM
7411 /* Handle global symbol. */
7412 struct ppc_elf_link_hash_entry *eh;
252b5132 7413
25dbc73a 7414 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7415 BFD_ASSERT (eh->elf.def_regular);
7416 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7417 }
7418 else
7419 {
7420 /* Handle local symbol. */
7421 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7422
0c8d6e5c 7423 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7424 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7425 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7426 }
252b5132 7427
76750a2f
AM
7428 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7429 rel->r_addend,
7430 lsect);
7431 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7432
76750a2f
AM
7433 /* Offset will always be a multiple of four, so use the bottom bit
7434 as a "written" flag. */
7435 if ((linker_section_ptr->offset & 1) == 0)
7436 {
7437 bfd_put_32 (lsect->section->owner,
7438 relocation + linker_section_ptr->addend,
7439 lsect->section->contents + linker_section_ptr->offset);
7440 linker_section_ptr->offset += 1;
252b5132
RH
7441 }
7442
bd6c6e2b
AM
7443 relocation = (lsect->section->output_section->vma
7444 + lsect->section->output_offset
76750a2f 7445 + linker_section_ptr->offset - 1
bd6c6e2b 7446 - SYM_VAL (lsect->sym));
252b5132 7447
25dbc73a
AM
7448#ifdef DEBUG
7449 fprintf (stderr,
7450 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7451 lsect->name, (long) relocation, (long) relocation);
7452#endif
252b5132 7453
bd6c6e2b 7454 return relocation;
252b5132 7455}
25dbc73a 7456
e054468f
AM
7457#define PPC_LO(v) ((v) & 0xffff)
7458#define PPC_HI(v) (((v) >> 16) & 0xffff)
7459#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7460
7461static void
a7f2871e 7462write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7463 struct bfd_link_info *info)
7464{
7465 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7466 bfd *output_bfd = info->output_bfd;
7467 bfd_vma plt;
e054468f
AM
7468
7469 plt = ((ent->plt.offset & ~1)
7470 + plt_sec->output_section->vma
7471 + plt_sec->output_offset);
e054468f 7472
0e1862bb 7473 if (bfd_link_pic (info))
e054468f
AM
7474 {
7475 bfd_vma got = 0;
7476
7477 if (ent->addend >= 32768)
7478 got = (ent->addend
7479 + ent->sec->output_section->vma
7480 + ent->sec->output_offset);
7481 else if (htab->elf.hgot != NULL)
7482 got = SYM_VAL (htab->elf.hgot);
7483
7484 plt -= got;
7485
7486 if (plt + 0x8000 < 0x10000)
7487 {
7488 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7489 p += 4;
7490 bfd_put_32 (output_bfd, MTCTR_11, p);
7491 p += 4;
7492 bfd_put_32 (output_bfd, BCTR, p);
7493 p += 4;
da3a2088 7494 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7495 p += 4;
7496 }
7497 else
7498 {
7499 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7500 p += 4;
7501 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7502 p += 4;
7503 bfd_put_32 (output_bfd, MTCTR_11, p);
7504 p += 4;
7505 bfd_put_32 (output_bfd, BCTR, p);
7506 p += 4;
7507 }
7508 }
7509 else
7510 {
7511 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7512 p += 4;
7513 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7514 p += 4;
7515 bfd_put_32 (output_bfd, MTCTR_11, p);
7516 p += 4;
7517 bfd_put_32 (output_bfd, BCTR, p);
7518 p += 4;
7519 }
7520}
7521
bd6c6e2b
AM
7522/* Return true if symbol is defined statically. */
7523
7524static bfd_boolean
7525is_static_defined (struct elf_link_hash_entry *h)
7526{
7527 return ((h->root.type == bfd_link_hash_defined
7528 || h->root.type == bfd_link_hash_defweak)
7529 && h->root.u.def.section != NULL
7530 && h->root.u.def.section->output_section != NULL);
7531}
7532
2d0f3896
AM
7533/* If INSN is an opcode that may be used with an @tls operand, return
7534 the transformed insn for TLS optimisation, otherwise return 0. If
7535 REG is non-zero only match an insn with RB or RA equal to REG. */
7536
7537unsigned int
7538_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7539{
7540 unsigned int rtra;
7541
7542 if ((insn & (0x3f << 26)) != 31 << 26)
7543 return 0;
7544
7545 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7546 rtra = insn & ((1 << 26) - (1 << 16));
7547 else if (((insn >> 16) & 0x1f) == reg)
7548 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7549 else
7550 return 0;
7551
7552 if ((insn & (0x3ff << 1)) == 266 << 1)
7553 /* add -> addi. */
7554 insn = 14 << 26;
7555 else if ((insn & (0x1f << 1)) == 23 << 1
7556 && ((insn & (0x1f << 6)) < 14 << 6
7557 || ((insn & (0x1f << 6)) >= 16 << 6
7558 && (insn & (0x1f << 6)) < 24 << 6)))
7559 /* load and store indexed -> dform. */
7560 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7561 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7562 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7563 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7564 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7565 /* lwax -> lwa. */
7566 insn = (58 << 26) | 2;
7567 else
7568 return 0;
7569 insn |= rtra;
7570 return insn;
7571}
7572
766bc656
AM
7573/* If INSN is an opcode that may be used with an @tprel operand, return
7574 the transformed insn for an undefined weak symbol, ie. with the
7575 thread pointer REG operand removed. Otherwise return 0. */
7576
7577unsigned int
7578_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7579{
7580 if ((insn & (0x1f << 16)) == reg << 16
7581 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7582 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7583 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7584 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7585 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7586 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7587 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7588 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7589 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7590 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7591 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7592 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7593 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7594 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7595 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7596 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7597 && (insn & 3) != 1)
7598 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7599 && ((insn & 3) == 0 || (insn & 3) == 3))))
7600 {
7601 insn &= ~(0x1f << 16);
7602 }
7603 else if ((insn & (0x1f << 21)) == reg << 21
7604 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7605 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7606 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7607 {
7608 insn &= ~(0x1f << 21);
7609 insn |= (insn & (0x1f << 16)) << 5;
7610 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7611 insn -= 2 >> 26; /* convert to ori,oris */
7612 }
7613 else
7614 insn = 0;
7615 return insn;
7616}
7617
1fe532cf
AM
7618static bfd_boolean
7619is_insn_ds_form (unsigned int insn)
7620{
7621 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7622 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7623 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7624 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7625}
7626
7627static bfd_boolean
7628is_insn_dq_form (unsigned int insn)
7629{
a680de9a
PB
7630 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7631 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7632 && (insn & 3) == 1));
1fe532cf
AM
7633}
7634
252b5132
RH
7635/* The RELOCATE_SECTION function is called by the ELF backend linker
7636 to handle the relocations for a section.
7637
7638 The relocs are always passed as Rela structures; if the section
7639 actually uses Rel structures, the r_addend field will always be
7640 zero.
7641
7642 This function is responsible for adjust the section contents as
7643 necessary, and (if using Rela relocs and generating a
1049f94e 7644 relocatable output file) adjusting the reloc addend as
252b5132
RH
7645 necessary.
7646
7647 This function does not have to worry about setting the reloc
7648 address or the reloc symbol index.
7649
7650 LOCAL_SYMS is a pointer to the swapped in local symbols.
7651
7652 LOCAL_SECTIONS is an array giving the section in the input file
7653 corresponding to the st_shndx field of each local symbol.
7654
7655 The global hash table entry for the global symbols can be found
7656 via elf_sym_hashes (input_bfd).
7657
1049f94e 7658 When generating relocatable output, this function must handle
252b5132
RH
7659 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7660 going to be the section symbol corresponding to the output
7661 section, which means that the addend must be adjusted
7662 accordingly. */
7663
b34976b6 7664static bfd_boolean
55fd94b0
AM
7665ppc_elf_relocate_section (bfd *output_bfd,
7666 struct bfd_link_info *info,
7667 bfd *input_bfd,
7668 asection *input_section,
7669 bfd_byte *contents,
7670 Elf_Internal_Rela *relocs,
7671 Elf_Internal_Sym *local_syms,
7672 asection **local_sections)
252b5132 7673{
7619e7c7
AM
7674 Elf_Internal_Shdr *symtab_hdr;
7675 struct elf_link_hash_entry **sym_hashes;
7676 struct ppc_elf_link_hash_table *htab;
7677 Elf_Internal_Rela *rel;
c316a17c 7678 Elf_Internal_Rela *wrel;
7619e7c7
AM
7679 Elf_Internal_Rela *relend;
7680 Elf_Internal_Rela outrel;
f95f8542 7681 asection *got2;
252b5132 7682 bfd_vma *local_got_offsets;
b34976b6 7683 bfd_boolean ret = TRUE;
95f0d0d2 7684 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 7685 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7686 unsigned int picfixup_size = 0;
7687 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7688
252b5132 7689#ifdef DEBUG
d003868e
AM
7690 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7691 "%ld relocations%s",
7692 input_bfd, input_section,
7693 (long) input_section->reloc_count,
0e1862bb 7694 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7695#endif
7696
a6aa5195
AM
7697 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7698
e47cd125 7699 /* Initialize howto table if not already done. */
8da6118f 7700 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7701 ppc_elf_howto_init ();
7702
7619e7c7 7703 htab = ppc_elf_hash_table (info);
252b5132 7704 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7705 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7706 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7707 /* We have to handle relocations in vxworks .tls_vars sections
7708 specially, because the dynamic loader is 'weird'. */
0e1862bb 7709 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7710 && !strcmp (input_section->output_section->name,
7711 ".tls_vars"));
d3e454b9
AM
7712 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7713 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7714 rel = wrel = relocs;
7619e7c7 7715 relend = relocs + input_section->reloc_count;
c316a17c 7716 for (; rel < relend; wrel++, rel++)
252b5132 7717 {
7619e7c7
AM
7718 enum elf_ppc_reloc_type r_type;
7719 bfd_vma addend;
7720 bfd_reloc_status_type r;
7721 Elf_Internal_Sym *sym;
7722 asection *sec;
7723 struct elf_link_hash_entry *h;
7724 const char *sym_name;
252b5132
RH
7725 reloc_howto_type *howto;
7726 unsigned long r_symndx;
7727 bfd_vma relocation;
91d6fa6a 7728 bfd_vma branch_bit, from;
7619e7c7
AM
7729 bfd_boolean unresolved_reloc;
7730 bfd_boolean warned;
7731 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7732 struct plt_entry **ifunc;
86c95733 7733 struct reloc_howto_struct alt_howto;
7619e7c7 7734
c316a17c 7735 again:
55fd94b0
AM
7736 r_type = ELF32_R_TYPE (rel->r_info);
7737 sym = NULL;
7738 sec = NULL;
7739 h = NULL;
7619e7c7
AM
7740 unresolved_reloc = FALSE;
7741 warned = FALSE;
252b5132 7742 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7743
252b5132
RH
7744 if (r_symndx < symtab_hdr->sh_info)
7745 {
7746 sym = local_syms + r_symndx;
7747 sec = local_sections[r_symndx];
26c61ae5 7748 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7749
8517fae7 7750 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7751 }
7752 else
7753 {
62d887d4
L
7754 bfd_boolean ignored;
7755
b2a8e766
AM
7756 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7757 r_symndx, symtab_hdr, sym_hashes,
7758 h, sec, relocation,
62d887d4 7759 unresolved_reloc, warned, ignored);
9abc968f 7760
252b5132 7761 sym_name = h->root.root.string;
7619e7c7
AM
7762 }
7763
dbaa2011 7764 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7765 {
7766 /* For relocs against symbols from removed linkonce sections,
7767 or sections discarded by a linker script, we just want the
7768 section contents zeroed. Avoid any special processing. */
7769 howto = NULL;
7770 if (r_type < R_PPC_max)
7771 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7772
7773 _bfd_clear_contents (howto, input_bfd, input_section,
7774 contents + rel->r_offset);
7775 wrel->r_offset = rel->r_offset;
7776 wrel->r_info = 0;
7777 wrel->r_addend = 0;
7778
7779 /* For ld -r, remove relocations in debug sections against
dcd2b8a0 7780 symbols defined in discarded sections. Not done for
c316a17c
AM
7781 non-debug to preserve relocs in .eh_frame which the
7782 eh_frame editing code expects to be present. */
7783 if (bfd_link_relocatable (info)
7784 && (input_section->flags & SEC_DEBUGGING))
7785 wrel--;
7786
7787 continue;
ab96bf03
AM
7788 }
7789
0e1862bb 7790 if (bfd_link_relocatable (info))
ab96bf03
AM
7791 {
7792 if (got2 != NULL
7793 && r_type == R_PPC_PLTREL24
f75e0e33 7794 && rel->r_addend != 0)
ab96bf03
AM
7795 {
7796 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7797 addend specifies the GOT pointer offset within .got2. */
7798 rel->r_addend += got2->output_offset;
7799 }
53291d1f
AM
7800 if (r_type != R_PPC_RELAX_PLT
7801 && r_type != R_PPC_RELAX_PLTREL24
7802 && r_type != R_PPC_RELAX)
c316a17c 7803 goto copy_reloc;
ab96bf03
AM
7804 }
7805
7619e7c7
AM
7806 /* TLS optimizations. Replace instruction sequences and relocs
7807 based on information we collected in tls_optimize. We edit
7808 RELOCS so that --emit-relocs will output something sensible
7809 for the final instruction stream. */
7810 tls_mask = 0;
7811 tls_gd = 0;
727fc41e
AM
7812 if (h != NULL)
7813 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7814 else if (local_got_offsets != NULL)
7619e7c7 7815 {
e054468f 7816 struct plt_entry **local_plt;
727fc41e 7817 char *lgot_masks;
e054468f
AM
7818 local_plt
7819 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7820 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7821 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7822 }
7823
7824 /* Ensure reloc mapping code below stays sane. */
7825 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7826 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7827 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7828 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7829 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7830 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7831 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7832 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7833 abort ();
7834 switch (r_type)
7835 {
7836 default:
7837 break;
7838
7839 case R_PPC_GOT_TPREL16:
7840 case R_PPC_GOT_TPREL16_LO:
e054468f 7841 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7842 && (tls_mask & TLS_TPREL) == 0)
7843 {
7844 bfd_vma insn;
91d6fa6a 7845
95f0d0d2 7846 insn = bfd_get_32 (input_bfd,
c316a17c 7847 contents + rel->r_offset - d_offset);
7619e7c7
AM
7848 insn &= 31 << 21;
7849 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 7850 bfd_put_32 (input_bfd, insn,
c316a17c 7851 contents + rel->r_offset - d_offset);
7619e7c7
AM
7852 r_type = R_PPC_TPREL16_HA;
7853 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7854 }
7855 break;
7856
7857 case R_PPC_TLS:
e054468f 7858 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7859 && (tls_mask & TLS_TPREL) == 0)
7860 {
2d0f3896
AM
7861 bfd_vma insn;
7862
95f0d0d2 7863 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
7864 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7865 if (insn == 0)
7619e7c7 7866 abort ();
95f0d0d2 7867 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
7868 r_type = R_PPC_TPREL16_LO;
7869 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7870
7619e7c7 7871 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7872 PPC_TPREL16_LO which is at low-order half-word. */
7873 rel->r_offset += d_offset;
7619e7c7
AM
7874 }
7875 break;
7876
7877 case R_PPC_GOT_TLSGD16_HI:
7878 case R_PPC_GOT_TLSGD16_HA:
7879 tls_gd = TLS_TPRELGD;
e054468f 7880 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
7881 goto tls_gdld_hi;
7882 break;
7883
7884 case R_PPC_GOT_TLSLD16_HI:
7885 case R_PPC_GOT_TLSLD16_HA:
e054468f 7886 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
7887 {
7888 tls_gdld_hi:
7889 if ((tls_mask & tls_gd) != 0)
7890 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7891 + R_PPC_GOT_TPREL16);
7892 else
7893 {
4fe5ca5b 7894 rel->r_offset -= d_offset;
95f0d0d2 7895 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
7896 r_type = R_PPC_NONE;
7897 }
7898 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7899 }
7900 break;
7901
7902 case R_PPC_GOT_TLSGD16:
7903 case R_PPC_GOT_TLSGD16_LO:
7904 tls_gd = TLS_TPRELGD;
e054468f 7905 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 7906 goto tls_ldgd_opt;
7619e7c7
AM
7907 break;
7908
7909 case R_PPC_GOT_TLSLD16:
7910 case R_PPC_GOT_TLSLD16_LO:
e054468f 7911 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 7912 {
3a71aa26 7913 unsigned int insn1, insn2;
b7fcf6f6 7914 bfd_vma offset;
7619e7c7 7915
b7fcf6f6 7916 tls_ldgd_opt:
727fc41e
AM
7917 offset = (bfd_vma) -1;
7918 /* If not using the newer R_PPC_TLSGD/LD to mark
7919 __tls_get_addr calls, we must trust that the call
7920 stays with its arg setup insns, ie. that the next
7921 reloc is the __tls_get_addr call associated with
7922 the current reloc. Edit both insns. */
7923 if (input_section->has_tls_get_addr_call
7924 && rel + 1 < relend
7925 && branch_reloc_hash_match (input_bfd, rel + 1,
7926 htab->tls_get_addr))
7927 offset = rel[1].r_offset;
b86ac8e3
AM
7928 /* We read the low GOT_TLS insn because we need to keep
7929 the destination reg. It may be something other than
7930 the usual r3, and moved to r3 before the call by
7931 intervening code. */
95f0d0d2 7932 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 7933 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7934 if ((tls_mask & tls_gd) != 0)
7935 {
7936 /* IE */
b86ac8e3 7937 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 7938 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
7939 if (offset != (bfd_vma) -1)
7940 {
f58d5a2d 7941 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 7942 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 7943 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 7944 }
b7fcf6f6
AM
7945 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7946 + R_PPC_GOT_TPREL16);
7947 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7948 }
7949 else
7950 {
7951 /* LE */
b86ac8e3
AM
7952 insn1 &= 0x1f << 21;
7953 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
7954 if (tls_gd == 0)
7955 {
b7fcf6f6 7956 /* Was an LD reloc. */
1d483afe
AM
7957 for (r_symndx = 0;
7958 r_symndx < symtab_hdr->sh_info;
7959 r_symndx++)
7960 if (local_sections[r_symndx] == sec)
7961 break;
7962 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7963 r_symndx = STN_UNDEF;
b7fcf6f6 7964 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7965 if (r_symndx != STN_UNDEF)
1d483afe
AM
7966 rel->r_addend -= (local_syms[r_symndx].st_value
7967 + sec->output_offset
7968 + sec->output_section->vma);
7619e7c7 7969 }
b7fcf6f6
AM
7970 r_type = R_PPC_TPREL16_HA;
7971 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
7972 if (offset != (bfd_vma) -1)
7973 {
7974 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7975 rel[1].r_offset = offset + d_offset;
7976 rel[1].r_addend = rel->r_addend;
7977 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 7978 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 7979 }
b7fcf6f6 7980 }
95f0d0d2 7981 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 7982 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7983 if (tls_gd == 0)
7984 {
7985 /* We changed the symbol on an LD reloc. Start over
7986 in order to get h, sym, sec etc. right. */
c316a17c 7987 goto again;
7619e7c7 7988 }
252b5132 7989 }
7619e7c7 7990 break;
727fc41e
AM
7991
7992 case R_PPC_TLSGD:
e054468f 7993 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
7994 {
7995 unsigned int insn2;
7996 bfd_vma offset = rel->r_offset;
7997
7998 if ((tls_mask & TLS_TPRELGD) != 0)
7999 {
8000 /* IE */
8001 r_type = R_PPC_NONE;
8002 insn2 = 0x7c631214; /* add 3,3,2 */
8003 }
8004 else
8005 {
8006 /* LE */
8007 r_type = R_PPC_TPREL16_LO;
8008 rel->r_offset += d_offset;
8009 insn2 = 0x38630000; /* addi 3,3,0 */
8010 }
8011 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 8012 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
8013 /* Zap the reloc on the _tls_get_addr call too. */
8014 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8015 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8016 }
8017 break;
8018
8019 case R_PPC_TLSLD:
e054468f 8020 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
8021 {
8022 unsigned int insn2;
8023
8024 for (r_symndx = 0;
8025 r_symndx < symtab_hdr->sh_info;
8026 r_symndx++)
8027 if (local_sections[r_symndx] == sec)
8028 break;
8029 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8030 r_symndx = STN_UNDEF;
727fc41e 8031 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8032 if (r_symndx != STN_UNDEF)
727fc41e
AM
8033 rel->r_addend -= (local_syms[r_symndx].st_value
8034 + sec->output_offset
8035 + sec->output_section->vma);
8036
8037 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8038 rel->r_offset += d_offset;
8039 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8040 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
8041 contents + rel->r_offset - d_offset);
8042 /* Zap the reloc on the _tls_get_addr call too. */
8043 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8044 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8045 goto again;
727fc41e
AM
8046 }
8047 break;
7619e7c7
AM
8048 }
8049
8050 /* Handle other relocations that tweak non-addend part of insn. */
8051 branch_bit = 0;
8052 switch (r_type)
8053 {
8054 default:
8055 break;
8056
8057 /* Branch taken prediction relocations. */
8058 case R_PPC_ADDR14_BRTAKEN:
8059 case R_PPC_REL14_BRTAKEN:
8060 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8061 /* Fall through. */
7619e7c7 8062
4cc11e76 8063 /* Branch not taken prediction relocations. */
7619e7c7
AM
8064 case R_PPC_ADDR14_BRNTAKEN:
8065 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8066 {
8067 bfd_vma insn;
7619e7c7 8068
95f0d0d2 8069 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8070 insn &= ~BRANCH_PREDICT_BIT;
8071 insn |= branch_bit;
7619e7c7 8072
91d6fa6a
NC
8073 from = (rel->r_offset
8074 + input_section->output_offset
8075 + input_section->output_section->vma);
7619e7c7 8076
91d6fa6a
NC
8077 /* Invert 'y' bit if not the default. */
8078 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8079 insn ^= BRANCH_PREDICT_BIT;
8080
95f0d0d2 8081 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a
NC
8082 break;
8083 }
252b5132
RH
8084 }
8085
d3e454b9
AM
8086 if (ELIMINATE_COPY_RELOCS
8087 && h != NULL
8088 && !h->def_regular
8089 && h->protected_def
8090 && ppc_elf_hash_entry (h)->has_addr16_ha
8091 && ppc_elf_hash_entry (h)->has_addr16_lo
8092 && htab->params->pic_fixup > 0)
8093 {
8094 /* Convert lis;addi or lis;load/store accessing a protected
8095 variable defined in a shared library to PIC. */
8096 unsigned int insn;
8097
8098 if (r_type == R_PPC_ADDR16_HA)
8099 {
95f0d0d2 8100 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8101 contents + rel->r_offset - d_offset);
8102 if ((insn & (0x3f << 26)) == (15u << 26)
8103 && (insn & (0x1f << 16)) == 0 /* lis */)
8104 {
8105 bfd_byte *p;
8106 bfd_vma off;
8107 bfd_vma got_addr;
8108
8109 p = (contents + input_section->size
8110 - relax_info->workaround_size
8111 - relax_info->picfixup_size
8112 + picfixup_size);
8113 off = (p - contents) - (rel->r_offset - d_offset);
8114 if (off > 0x1fffffc || (off & 3) != 0)
8115 info->callbacks->einfo
174d0a74 8116 (_("%H: fixup branch overflow\n"),
d3e454b9
AM
8117 input_bfd, input_section, rel->r_offset);
8118
95f0d0d2 8119 bfd_put_32 (input_bfd, B | off,
d3e454b9 8120 contents + rel->r_offset - d_offset);
ce558b89
AM
8121 got_addr = (htab->elf.sgot->output_section->vma
8122 + htab->elf.sgot->output_offset
d3e454b9 8123 + (h->got.offset & ~1));
c316a17c
AM
8124 wrel->r_offset = (p - contents) + d_offset;
8125 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8126 wrel->r_addend = got_addr;
d3e454b9 8127 insn &= ~0xffff;
4aef7643 8128 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8129 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8130
8131 /* Convert lis to lwz, loading address from GOT. */
8132 insn &= ~0xffff;
8133 insn ^= (32u ^ 15u) << 26;
8134 insn |= (insn & (0x1f << 21)) >> 5;
8135 insn |= got_addr & 0xffff;
95f0d0d2 8136 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8137
95f0d0d2 8138 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8139 picfixup_size += 12;
8140
8141 /* Use one of the spare relocs, so --emit-relocs
8142 output is reasonable. */
8143 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8144 wrel++, rel++;
8145 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8146 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8147 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8148
8149 /* Continue on as if we had a got reloc, to output
8150 dynamic reloc. */
8151 r_type = R_PPC_GOT16_LO;
8152 }
8153 else
2c4d9cbe 8154 _bfd_error_handler
695344c0 8155 /* xgettext:c-format */
e3fbc3da 8156 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8157 input_bfd, input_section, rel->r_offset,
8158 "R_PPC_ADDR16_HA", insn);
8159 }
8160 else if (r_type == R_PPC_ADDR16_LO)
8161 {
95f0d0d2 8162 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8163 contents + rel->r_offset - d_offset);
8164 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8165 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8166 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8167 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8168 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8169 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8170 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8171 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8172 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8173 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8174 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8175 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8176 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8177 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8178 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8179 && (insn & 3) != 1)
8180 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8181 && ((insn & 3) == 0 || (insn & 3) == 3)))
8182 {
8183 /* Arrange to apply the reloc addend, if any. */
8184 relocation = 0;
8185 unresolved_reloc = FALSE;
8186 rel->r_info = ELF32_R_INFO (0, r_type);
8187 }
8188 else
2c4d9cbe 8189 _bfd_error_handler
695344c0 8190 /* xgettext:c-format */
e3fbc3da 8191 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8192 input_bfd, input_section, rel->r_offset,
8193 "R_PPC_ADDR16_LO", insn);
8194 }
8195 }
8196
e054468f 8197 ifunc = NULL;
25f23106 8198 if (!htab->is_vxworks)
e054468f 8199 {
de972ffa
AM
8200 struct plt_entry *ent;
8201
e054468f
AM
8202 if (h != NULL)
8203 {
8204 if (h->type == STT_GNU_IFUNC)
8205 ifunc = &h->plt.plist;
8206 }
de972ffa
AM
8207 else if (local_got_offsets != NULL
8208 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8209 {
de972ffa 8210 struct plt_entry **local_plt;
e054468f 8211
de972ffa
AM
8212 local_plt = (struct plt_entry **) (local_got_offsets
8213 + symtab_hdr->sh_info);
8214 ifunc = local_plt + r_symndx;
e054468f 8215 }
e054468f 8216
de972ffa
AM
8217 ent = NULL;
8218 if (ifunc != NULL
0e1862bb 8219 && (!bfd_link_pic (info)
de972ffa
AM
8220 || is_branch_reloc (r_type)))
8221 {
8222 addend = 0;
0e1862bb 8223 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8224 addend = rel->r_addend;
8225 ent = find_plt_ent (ifunc, got2, addend);
8226 }
8227 if (ent != NULL)
8228 {
888a7fc3
AM
8229 if (bfd_link_pic (info)
8230 && ent->sec != got2
8231 && htab->plt_type != PLT_NEW
8232 && (!htab->elf.dynamic_sections_created
8233 || h == NULL
8234 || h->dynindx == -1))
8235 {
8236 /* Uh oh, we are going to create a pic glink stub
8237 for an ifunc (here for h == NULL and later in
8238 finish_dynamic_symbol for h != NULL), and
8239 apparently are using code compiled with
8240 -mbss-plt. The difficulty is that -mbss-plt code
8241 gives no indication via a magic PLTREL24 addend
8242 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8243 is pointing into a .got2 section (and how far
8244 into .got2). */
8245 info->callbacks->einfo
695344c0 8246 /* xgettext:c-format */
174d0a74 8247 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
888a7fc3
AM
8248 input_bfd, input_section, rel->r_offset, sym_name);
8249 }
e054468f
AM
8250 if (h == NULL && (ent->plt.offset & 1) == 0)
8251 {
8252 Elf_Internal_Rela rela;
8253 bfd_byte *loc;
8254
ce558b89
AM
8255 rela.r_offset = (htab->elf.iplt->output_section->vma
8256 + htab->elf.iplt->output_offset
e054468f
AM
8257 + ent->plt.offset);
8258 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8259 rela.r_addend = relocation;
ce558b89
AM
8260 loc = htab->elf.irelplt->contents;
8261 loc += (htab->elf.irelplt->reloc_count++
25f23106 8262 * sizeof (Elf32_External_Rela));
e054468f 8263 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
82e66161 8264 htab->local_ifunc_resolver = 1;
e054468f
AM
8265
8266 ent->plt.offset |= 1;
8267 }
8268 if (h == NULL && (ent->glink_offset & 1) == 0)
8269 {
a7f2871e
AM
8270 unsigned char *p = ((unsigned char *) htab->glink->contents
8271 + ent->glink_offset);
ce558b89 8272 write_glink_stub (ent, htab->elf.iplt, p, info);
e054468f
AM
8273 ent->glink_offset |= 1;
8274 }
8275
8276 unresolved_reloc = FALSE;
8277 if (htab->plt_type == PLT_NEW
8278 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8279 || h == NULL
8280 || h->dynindx == -1)
e054468f
AM
8281 relocation = (htab->glink->output_section->vma
8282 + htab->glink->output_offset
8283 + (ent->glink_offset & ~1));
8284 else
ce558b89
AM
8285 relocation = (htab->elf.splt->output_section->vma
8286 + htab->elf.splt->output_offset
e054468f
AM
8287 + ent->plt.offset);
8288 }
8289 }
8290
7619e7c7 8291 addend = rel->r_addend;
7619e7c7 8292 howto = NULL;
55fd94b0
AM
8293 if (r_type < R_PPC_max)
8294 howto = ppc_elf_howto_table[r_type];
9a23f96e
AM
8295
8296 switch (r_type)
8297 {
8298 default:
8299 break;
8300
8301 case R_PPC_TPREL16_HA:
8302 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8303 {
8304 bfd_byte *p = contents + (rel->r_offset & ~3);
8305 unsigned int insn = bfd_get_32 (input_bfd, p);
8306 if ((insn & ((0x3f << 26) | 0x1f << 16))
8307 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
8308 /* xgettext:c-format */
8309 info->callbacks->minfo
8310 (_("%H: warning: %s unexpected insn %#x.\n"),
8311 input_bfd, input_section, rel->r_offset, howto->name, insn);
8312 else
8313 bfd_put_32 (input_bfd, NOP, p);
8314 }
8315 break;
8316
8317 case R_PPC_TPREL16_LO:
8318 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8319 {
8320 bfd_byte *p = contents + (rel->r_offset & ~3);
8321 unsigned int insn = bfd_get_32 (input_bfd, p);
8322 insn &= ~(0x1f << 16);
8323 insn |= 2 << 16;
8324 bfd_put_32 (input_bfd, insn, p);
8325 }
8326 break;
8327 }
8328
8329 tls_type = 0;
7619e7c7 8330 switch (r_type)
252b5132
RH
8331 {
8332 default:
25f53a85 8333 info->callbacks->einfo
695344c0 8334 /* xgettext:c-format */
8de848d8 8335 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8336 input_bfd, (int) r_type, sym_name);
252b5132
RH
8337
8338 bfd_set_error (bfd_error_bad_value);
b34976b6 8339 ret = FALSE;
c316a17c 8340 goto copy_reloc;
252b5132 8341
7619e7c7
AM
8342 case R_PPC_NONE:
8343 case R_PPC_TLS:
727fc41e
AM
8344 case R_PPC_TLSGD:
8345 case R_PPC_TLSLD:
7619e7c7
AM
8346 case R_PPC_EMB_MRKREF:
8347 case R_PPC_GNU_VTINHERIT:
8348 case R_PPC_GNU_VTENTRY:
c316a17c 8349 goto copy_reloc;
7595d193 8350
7619e7c7
AM
8351 /* GOT16 relocations. Like an ADDR16 using the symbol's
8352 address in the GOT as relocation value instead of the
8353 symbol's value itself. Also, create a GOT entry for the
8354 symbol and put the symbol value there. */
8355 case R_PPC_GOT_TLSGD16:
8356 case R_PPC_GOT_TLSGD16_LO:
8357 case R_PPC_GOT_TLSGD16_HI:
8358 case R_PPC_GOT_TLSGD16_HA:
8359 tls_type = TLS_TLS | TLS_GD;
8360 goto dogot;
8361
8362 case R_PPC_GOT_TLSLD16:
8363 case R_PPC_GOT_TLSLD16_LO:
8364 case R_PPC_GOT_TLSLD16_HI:
8365 case R_PPC_GOT_TLSLD16_HA:
8366 tls_type = TLS_TLS | TLS_LD;
8367 goto dogot;
8368
8369 case R_PPC_GOT_TPREL16:
8370 case R_PPC_GOT_TPREL16_LO:
8371 case R_PPC_GOT_TPREL16_HI:
8372 case R_PPC_GOT_TPREL16_HA:
8373 tls_type = TLS_TLS | TLS_TPREL;
8374 goto dogot;
8375
8376 case R_PPC_GOT_DTPREL16:
8377 case R_PPC_GOT_DTPREL16_LO:
8378 case R_PPC_GOT_DTPREL16_HI:
8379 case R_PPC_GOT_DTPREL16_HA:
8380 tls_type = TLS_TLS | TLS_DTPREL;
8381 goto dogot;
8382
8383 case R_PPC_GOT16:
8384 case R_PPC_GOT16_LO:
8385 case R_PPC_GOT16_HI:
8386 case R_PPC_GOT16_HA:
727fc41e 8387 tls_mask = 0;
7619e7c7
AM
8388 dogot:
8389 {
8390 /* Relocation is to the entry for this symbol in the global
8391 offset table. */
8392 bfd_vma off;
8393 bfd_vma *offp;
8394 unsigned long indx;
8395
ce558b89 8396 if (htab->elf.sgot == NULL)
7619e7c7
AM
8397 abort ();
8398
8399 indx = 0;
8400 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8401 && (h == NULL
f5385ebf 8402 || !h->def_dynamic))
7619e7c7
AM
8403 offp = &htab->tlsld_got.offset;
8404 else if (h != NULL)
8405 {
f0158f44
AM
8406 if (!htab->elf.dynamic_sections_created
8407 || h->dynindx == -1
8408 || SYMBOL_REFERENCES_LOCAL (info, h)
21d68fcd 8409 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
7619e7c7
AM
8410 /* This is actually a static link, or it is a
8411 -Bsymbolic link and the symbol is defined
8412 locally, or the symbol was forced to be local
8413 because of a version file. */
8414 ;
8415 else
8416 {
8417 indx = h->dynindx;
8418 unresolved_reloc = FALSE;
8419 }
8420 offp = &h->got.offset;
8421 }
8422 else
8423 {
8424 if (local_got_offsets == NULL)
8425 abort ();
8426 offp = &local_got_offsets[r_symndx];
8427 }
8428
8429 /* The offset must always be a multiple of 4. We use the
8430 least significant bit to record whether we have already
8431 processed this entry. */
8432 off = *offp;
8433 if ((off & 1) != 0)
8434 off &= ~1;
8435 else
8436 {
70bccea4
AM
8437 unsigned int tls_m = (tls_mask
8438 & (TLS_LD | TLS_GD | TLS_DTPREL
8439 | TLS_TPREL | TLS_TPRELGD));
8440
8441 if (offp == &htab->tlsld_got.offset)
8442 tls_m = TLS_LD;
8443 else if (h == NULL
f5385ebf 8444 || !h->def_dynamic)
70bccea4
AM
8445 tls_m &= ~TLS_LD;
8446
8447 /* We might have multiple got entries for this sym.
8448 Initialize them all. */
8449 do
7619e7c7 8450 {
70bccea4
AM
8451 int tls_ty = 0;
8452
8453 if ((tls_m & TLS_LD) != 0)
7619e7c7 8454 {
70bccea4
AM
8455 tls_ty = TLS_TLS | TLS_LD;
8456 tls_m &= ~TLS_LD;
8457 }
8458 else if ((tls_m & TLS_GD) != 0)
8459 {
8460 tls_ty = TLS_TLS | TLS_GD;
8461 tls_m &= ~TLS_GD;
8462 }
8463 else if ((tls_m & TLS_DTPREL) != 0)
8464 {
8465 tls_ty = TLS_TLS | TLS_DTPREL;
8466 tls_m &= ~TLS_DTPREL;
8467 }
8468 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8469 {
8470 tls_ty = TLS_TLS | TLS_TPREL;
8471 tls_m = 0;
7619e7c7 8472 }
7619e7c7 8473
70bccea4 8474 /* Generate relocs for the dynamic linker. */
f0158f44
AM
8475 if (indx != 0
8476 || (bfd_link_pic (info)
8477 && (h == NULL
21d68fcd 8478 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
f15d0b54
AM
8479 || offp == &htab->tlsld_got.offset)
8480 && !(tls_ty == (TLS_TLS | TLS_TPREL)
8481 && bfd_link_executable (info)
8482 && SYMBOL_REFERENCES_LOCAL (info, h))))
7619e7c7 8483 {
ce558b89 8484 asection *rsec = htab->elf.srelgot;
91d6fa6a 8485 bfd_byte * loc;
91e21fb7 8486
0bed072f 8487 if (ifunc != NULL)
82e66161
AM
8488 {
8489 rsec = htab->elf.irelplt;
8490 if (indx == 0)
8491 htab->local_ifunc_resolver = 1;
8492 else if (is_static_defined (h))
8493 htab->maybe_local_ifunc_resolver = 1;
8494 }
ce558b89
AM
8495 outrel.r_offset = (htab->elf.sgot->output_section->vma
8496 + htab->elf.sgot->output_offset
70bccea4 8497 + off);
e515b051 8498 outrel.r_addend = 0;
70bccea4
AM
8499 if (tls_ty & (TLS_LD | TLS_GD))
8500 {
8501 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8502 if (tls_ty == (TLS_TLS | TLS_GD))
8503 {
25f23106
AM
8504 loc = rsec->contents;
8505 loc += (rsec->reloc_count++
70bccea4
AM
8506 * sizeof (Elf32_External_Rela));
8507 bfd_elf32_swap_reloca_out (output_bfd,
8508 &outrel, loc);
e515b051 8509 outrel.r_offset += 4;
70bccea4
AM
8510 outrel.r_info
8511 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8512 }
8513 }
8514 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8515 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8516 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8517 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8518 else if (indx != 0)
70bccea4 8519 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8520 else if (ifunc != NULL)
8521 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8522 else
8523 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8524 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8525 {
8526 outrel.r_addend += relocation;
8527 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8528 {
8529 if (htab->elf.tls_sec == NULL)
8530 outrel.r_addend = 0;
8531 else
8532 outrel.r_addend -= htab->elf.tls_sec->vma;
8533 }
e515b051 8534 }
25f23106
AM
8535 loc = rsec->contents;
8536 loc += (rsec->reloc_count++
70bccea4
AM
8537 * sizeof (Elf32_External_Rela));
8538 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8539 }
8540
70bccea4
AM
8541 /* Init the .got section contents if we're not
8542 emitting a reloc. */
8543 else
7619e7c7 8544 {
70bccea4
AM
8545 bfd_vma value = relocation;
8546
f0158f44 8547 if (tls_ty != 0)
70bccea4 8548 {
989f9879
AM
8549 if (htab->elf.tls_sec == NULL)
8550 value = 0;
8551 else
8552 {
f0158f44
AM
8553 if (tls_ty & TLS_LD)
8554 value = 0;
8555 else
8556 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
676ee2b5 8557 if (tls_ty & TLS_TPREL)
989f9879
AM
8558 value += DTP_OFFSET - TP_OFFSET;
8559 }
70bccea4 8560
f0158f44 8561 if (tls_ty & (TLS_LD | TLS_GD))
7b609f53 8562 {
95f0d0d2 8563 bfd_put_32 (input_bfd, value,
ce558b89 8564 htab->elf.sgot->contents + off + 4);
676ee2b5 8565 value = 1;
7b609f53 8566 }
70bccea4 8567 }
95f0d0d2 8568 bfd_put_32 (input_bfd, value,
ce558b89 8569 htab->elf.sgot->contents + off);
7619e7c7 8570 }
70bccea4
AM
8571
8572 off += 4;
8573 if (tls_ty & (TLS_LD | TLS_GD))
8574 off += 4;
7619e7c7 8575 }
70bccea4
AM
8576 while (tls_m != 0);
8577
8578 off = *offp;
8579 *offp = off | 1;
7619e7c7
AM
8580 }
8581
8582 if (off >= (bfd_vma) -2)
8583 abort ();
8584
70bccea4
AM
8585 if ((tls_type & TLS_TLS) != 0)
8586 {
8587 if (tls_type != (TLS_TLS | TLS_LD))
8588 {
8589 if ((tls_mask & TLS_LD) != 0
8590 && !(h == NULL
f5385ebf 8591 || !h->def_dynamic))
70bccea4
AM
8592 off += 8;
8593 if (tls_type != (TLS_TLS | TLS_GD))
8594 {
8595 if ((tls_mask & TLS_GD) != 0)
8596 off += 8;
8597 if (tls_type != (TLS_TLS | TLS_DTPREL))
8598 {
8599 if ((tls_mask & TLS_DTPREL) != 0)
8600 off += 4;
8601 }
8602 }
8603 }
8604 }
8605
d3e454b9
AM
8606 /* If here for a picfixup, we're done. */
8607 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8608 goto copy_reloc;
d3e454b9 8609
ce558b89
AM
8610 relocation = (htab->elf.sgot->output_section->vma
8611 + htab->elf.sgot->output_offset
e87d4038
AM
8612 + off
8613 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8614
8615 /* Addends on got relocations don't make much sense.
8616 x+off@got is actually x@got+off, and since the got is
8617 generated by a hash table traversal, the value in the
8618 got at entry m+n bears little relation to the entry m. */
8619 if (addend != 0)
25f53a85 8620 info->callbacks->einfo
695344c0 8621 /* xgettext:c-format */
174d0a74 8622 (_("%H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8623 input_bfd, input_section, rel->r_offset,
7b609f53 8624 howto->name,
7619e7c7
AM
8625 sym_name);
8626 }
86c95733 8627 break;
7619e7c7 8628
86c95733 8629 /* Relocations that need no special processing. */
7619e7c7 8630 case R_PPC_LOCAL24PC:
252b5132
RH
8631 /* It makes no sense to point a local relocation
8632 at a symbol not in this object. */
7b609f53 8633 if (unresolved_reloc)
252b5132 8634 {
1a72702b
AM
8635 (*info->callbacks->undefined_symbol) (info,
8636 h->root.root.string,
8637 input_bfd,
8638 input_section,
8639 rel->r_offset,
8640 TRUE);
c316a17c 8641 goto copy_reloc;
252b5132 8642 }
888a7fc3
AM
8643 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8644 {
8645 /* @local on an ifunc does not really make sense since
8646 the ifunc resolver can take you anywhere. More
8647 seriously, calls to ifuncs must go through a plt call
8648 stub, and for pic the plt call stubs uses r30 to
8649 access the PLT. The problem is that a call that is
8650 local won't have the +32k reloc addend trick marking
8651 -fPIC code, so the linker won't know whether r30 is
8652 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8653 /* xgettext:c-format */
174d0a74 8654 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
888a7fc3
AM
8655 input_bfd, input_section, rel->r_offset,
8656 h->root.root.string);
8657 }
252b5132
RH
8658 break;
8659
7619e7c7
AM
8660 case R_PPC_DTPREL16:
8661 case R_PPC_DTPREL16_LO:
8662 case R_PPC_DTPREL16_HI:
8663 case R_PPC_DTPREL16_HA:
989f9879
AM
8664 if (htab->elf.tls_sec != NULL)
8665 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8666 break;
8667
70bccea4
AM
8668 /* Relocations that may need to be propagated if this is a shared
8669 object. */
7619e7c7
AM
8670 case R_PPC_TPREL16:
8671 case R_PPC_TPREL16_LO:
8672 case R_PPC_TPREL16_HI:
8673 case R_PPC_TPREL16_HA:
766bc656
AM
8674 if (h != NULL
8675 && h->root.type == bfd_link_hash_undefweak
8676 && h->dynindx == -1)
8677 {
8678 /* Make this relocation against an undefined weak symbol
8679 resolve to zero. This is really just a tweak, since
8680 code using weak externs ought to check that they are
8681 defined before using them. */
8682 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 8683 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
8684 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8685 if (insn != 0)
95f0d0d2 8686 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
8687 break;
8688 }
989f9879
AM
8689 if (htab->elf.tls_sec != NULL)
8690 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7 8691 /* The TPREL16 relocs shouldn't really be used in shared
7c8bbca5
AM
8692 libs or with non-local symbols as that will result in
8693 DT_TEXTREL being set, but support them anyway. */
7619e7c7
AM
8694 goto dodyn;
8695
8696 case R_PPC_TPREL32:
989f9879
AM
8697 if (htab->elf.tls_sec != NULL)
8698 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8699 goto dodyn;
8700
8701 case R_PPC_DTPREL32:
989f9879
AM
8702 if (htab->elf.tls_sec != NULL)
8703 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8704 goto dodyn;
8705
e515b051
AM
8706 case R_PPC_DTPMOD32:
8707 relocation = 1;
8708 addend = 0;
8709 goto dodyn;
8710
d7128ce4
AM
8711 case R_PPC_REL16:
8712 case R_PPC_REL16_LO:
8713 case R_PPC_REL16_HI:
8714 case R_PPC_REL16_HA:
a680de9a 8715 case R_PPC_REL16DX_HA:
d7128ce4
AM
8716 break;
8717
7619e7c7 8718 case R_PPC_REL32:
625af618
AM
8719 if (h == NULL || h == htab->elf.hgot)
8720 break;
8721 /* fall through */
8722
8723 case R_PPC_ADDR32:
8724 case R_PPC_ADDR16:
8725 case R_PPC_ADDR16_LO:
8726 case R_PPC_ADDR16_HI:
8727 case R_PPC_ADDR16_HA:
8728 case R_PPC_UADDR32:
8729 case R_PPC_UADDR16:
8730 goto dodyn;
8731
b9c361e0
JL
8732 case R_PPC_VLE_REL8:
8733 case R_PPC_VLE_REL15:
8734 case R_PPC_VLE_REL24:
625af618 8735 case R_PPC_REL24:
7619e7c7
AM
8736 case R_PPC_REL14:
8737 case R_PPC_REL14_BRTAKEN:
8738 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8739 /* If these relocations are not to a named symbol, they can be
8740 handled right here, no need to bother the dynamic linker. */
89200bf8 8741 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8742 || h == htab->elf.hgot)
252b5132 8743 break;
70bccea4 8744 /* fall through */
252b5132 8745
7619e7c7 8746 case R_PPC_ADDR24:
7619e7c7
AM
8747 case R_PPC_ADDR14:
8748 case R_PPC_ADDR14_BRTAKEN:
8749 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8750 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8751 break;
8752 /* fall through */
8753
7619e7c7 8754 dodyn:
3348747a
NS
8755 if ((input_section->flags & SEC_ALLOC) == 0
8756 || is_vxworks_tls)
c87b5a93 8757 break;
c87b5a93 8758
0e1862bb 8759 if ((bfd_link_pic (info)
89200bf8
AM
8760 && !(h != NULL
8761 && ((h->root.type == bfd_link_hash_undefined
954b63d4 8762 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
21d68fcd 8763 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1d483afe 8764 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8765 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8766 || (ELIMINATE_COPY_RELOCS
0e1862bb 8767 && !bfd_link_pic (info)
ee05f2fe 8768 && h != NULL
529fe20e 8769 && h->non_got_ref))
252b5132 8770 {
0bb2d96a 8771 int skip;
f95f8542
AM
8772 bfd_byte *loc;
8773 asection *sreloc;
82e66161
AM
8774 long indx = 0;
8775
252b5132 8776#ifdef DEBUG
55fd94b0
AM
8777 fprintf (stderr, "ppc_elf_relocate_section needs to "
8778 "create relocation for %s\n",
70bccea4
AM
8779 (h && h->root.root.string
8780 ? h->root.root.string : "<unknown>"));
252b5132
RH
8781#endif
8782
8783 /* When generating a shared object, these relocations
70bccea4
AM
8784 are copied into the output file to be resolved at run
8785 time. */
0bb2d96a 8786 skip = 0;
5b914448
AM
8787 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8788 input_section,
8789 rel->r_offset);
0bb2d96a
JJ
8790 if (outrel.r_offset == (bfd_vma) -1
8791 || outrel.r_offset == (bfd_vma) -2)
8792 skip = (int) outrel.r_offset;
252b5132
RH
8793 outrel.r_offset += (input_section->output_section->vma
8794 + input_section->output_offset);
8795
8796 if (skip)
8797 memset (&outrel, 0, sizeof outrel);
21d68fcd 8798 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8799 {
82e66161
AM
8800 indx = h->dynindx;
8801 BFD_ASSERT (indx != -1);
7619e7c7 8802 unresolved_reloc = FALSE;
82e66161 8803 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
8804 outrel.r_addend = rel->r_addend;
8805 }
8806 else
8807 {
47388f4c
AM
8808 outrel.r_addend = relocation + rel->r_addend;
8809
25f23106 8810 if (r_type != R_PPC_ADDR32)
252b5132 8811 {
25f23106
AM
8812 if (ifunc != NULL)
8813 {
8814 /* If we get here when building a static
8815 executable, then the libc startup function
8816 responsible for applying indirect function
8817 relocations is going to complain about
8818 the reloc type.
8819 If we get here when building a dynamic
8820 executable, it will be because we have
8821 a text relocation. The dynamic loader
8822 will set the text segment writable and
8823 non-executable to apply text relocations.
8824 So we'll segfault when trying to run the
8825 indirection function to resolve the reloc. */
25f53a85 8826 info->callbacks->einfo
695344c0 8827 /* xgettext:c-format */
174d0a74 8828 (_("%H: relocation %s for indirect "
25f53a85
AM
8829 "function %s unsupported\n"),
8830 input_bfd, input_section, rel->r_offset,
25f23106
AM
8831 howto->name,
8832 sym_name);
8833 ret = FALSE;
8834 }
cf35638d 8835 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8836 ;
252b5132
RH
8837 else if (sec == NULL || sec->owner == NULL)
8838 {
8839 bfd_set_error (bfd_error_bad_value);
89200bf8 8840 ret = FALSE;
252b5132
RH
8841 }
8842 else
8843 {
8844 asection *osec;
8845
47388f4c
AM
8846 /* We are turning this relocation into one
8847 against a section symbol. It would be
8848 proper to subtract the symbol's value,
8849 osec->vma, from the emitted reloc addend,
25f23106
AM
8850 but ld.so expects buggy relocs.
8851 FIXME: Why not always use a zero index? */
252b5132
RH
8852 osec = sec->output_section;
8853 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8854 if (indx == 0)
8855 {
8856 osec = htab->elf.text_index_section;
8857 indx = elf_section_data (osec)->dynindx;
8858 }
8859 BFD_ASSERT (indx != 0);
252b5132 8860#ifdef DEBUG
74541ad4 8861 if (indx == 0)
e460dd0d 8862 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8863 indx, osec->name, osec->flags,
8864 h->root.root.string);
252b5132
RH
8865#endif
8866 }
8867
8868 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8869 }
25f23106
AM
8870 else if (ifunc != NULL)
8871 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8872 else
8873 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8874 }
8875
82e66161
AM
8876 sreloc = elf_section_data (input_section)->sreloc;
8877 if (ifunc)
8878 {
8879 sreloc = htab->elf.irelplt;
8880 if (indx == 0)
8881 htab->local_ifunc_resolver = 1;
8882 else if (is_static_defined (h))
8883 htab->maybe_local_ifunc_resolver = 1;
8884 }
8885 if (sreloc == NULL)
8886 return FALSE;
8887
947216bf
AM
8888 loc = sreloc->contents;
8889 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8890 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8891
2243deae 8892 if (skip == -1)
c316a17c 8893 goto copy_reloc;
2243deae 8894
f0158f44
AM
8895 /* This reloc will be computed at runtime. Clear the memory
8896 so that it contains a predictable value for prelink. */
8897 if (!skip)
2243deae
L
8898 {
8899 relocation = howto->pc_relative ? outrel.r_offset : 0;
8900 addend = 0;
8901 break;
8902 }
252b5132 8903 }
252b5132
RH
8904 break;
8905
32af9f6e
AM
8906 case R_PPC_RELAX_PLT:
8907 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
8908 if (h != NULL)
8909 {
32af9f6e
AM
8910 struct plt_entry *ent;
8911 bfd_vma got2_addend = 0;
8912
8913 if (r_type == R_PPC_RELAX_PLTREL24)
8914 {
0e1862bb 8915 if (bfd_link_pic (info))
32af9f6e
AM
8916 got2_addend = addend;
8917 addend = 0;
8918 }
8919 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
8920 if (htab->plt_type == PLT_NEW)
8921 relocation = (htab->glink->output_section->vma
8922 + htab->glink->output_offset
8923 + ent->glink_offset);
8924 else
ce558b89
AM
8925 relocation = (htab->elf.splt->output_section->vma
8926 + htab->elf.splt->output_offset
de972ffa
AM
8927 + ent->plt.offset);
8928 }
1a0670f3 8929 /* Fall through. */
b4a38de6 8930
32af9f6e 8931 case R_PPC_RELAX:
9abc968f 8932 {
53291d1f
AM
8933 const int *stub;
8934 size_t size;
8935 size_t insn_offset = rel->r_offset;
8936 unsigned int insn;
9abc968f 8937
0e1862bb 8938 if (bfd_link_pic (info))
53291d1f
AM
8939 {
8940 relocation -= (input_section->output_section->vma
8941 + input_section->output_offset
8942 + rel->r_offset - 4);
8943 stub = shared_stub_entry;
95f0d0d2
AM
8944 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
8945 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
8946 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
8947 stub += 3;
8948 size = ARRAY_SIZE (shared_stub_entry) - 3;
8949 }
8950 else
8951 {
8952 stub = stub_entry;
8953 size = ARRAY_SIZE (stub_entry);
8954 }
9abc968f 8955
9abc968f 8956 relocation += addend;
0e1862bb 8957 if (bfd_link_relocatable (info))
53291d1f
AM
8958 relocation = 0;
8959
8960 /* First insn is HA, second is LO. */
8961 insn = *stub++;
8962 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 8963 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8964 insn_offset += 4;
8965
8966 insn = *stub++;
8967 insn |= relocation & 0xffff;
95f0d0d2 8968 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8969 insn_offset += 4;
8970 size -= 2;
8971
8972 while (size != 0)
8973 {
8974 insn = *stub++;
8975 --size;
95f0d0d2 8976 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8977 insn_offset += 4;
8978 }
9bc4e62b
NS
8979
8980 /* Rewrite the reloc and convert one of the trailing nop
8981 relocs to describe this relocation. */
8982 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8983 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
8984 wrel->r_offset = rel->r_offset + d_offset;
8985 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8986 wrel->r_addend = rel->r_addend;
8987 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
8988 wrel++, rel++;
8989 wrel->r_offset += 4;
8990 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 8991 }
8517fae7 8992 continue;
deaaf2f3 8993
70bccea4 8994 /* Indirect .sdata relocation. */
7619e7c7 8995 case R_PPC_EMB_SDAI16:
c9a2f333 8996 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
8997 if (!is_static_defined (htab->sdata[0].sym))
8998 {
8999 unresolved_reloc = TRUE;
9000 break;
9001 }
7619e7c7 9002 relocation
76750a2f
AM
9003 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9004 h, relocation, rel);
bd6c6e2b 9005 addend = 0;
252b5132
RH
9006 break;
9007
70bccea4 9008 /* Indirect .sdata2 relocation. */
7619e7c7 9009 case R_PPC_EMB_SDA2I16:
c9a2f333 9010 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9011 if (!is_static_defined (htab->sdata[1].sym))
9012 {
9013 unresolved_reloc = TRUE;
9014 break;
9015 }
7619e7c7 9016 relocation
76750a2f
AM
9017 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9018 h, relocation, rel);
bd6c6e2b 9019 addend = 0;
252b5132
RH
9020 break;
9021
70bccea4
AM
9022 /* Handle the TOC16 reloc. We want to use the offset within the .got
9023 section, not the actual VMA. This is appropriate when generating
9024 an embedded ELF object, for which the .got section acts like the
9025 AIX .toc section. */
7619e7c7 9026 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9027 if (sec == NULL || sec->output_section == NULL)
9028 {
9029 unresolved_reloc = TRUE;
9030 break;
9031 }
a0f49396
NC
9032 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9033 ".got") == 0
9034 || strcmp (bfd_get_section_name (sec->owner, sec),
9035 ".cgot") == 0);
252b5132 9036
3b4f3a11 9037 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9038 break;
9039
7619e7c7 9040 case R_PPC_PLTREL24:
f75e0e33
AM
9041 if (h != NULL && ifunc == NULL)
9042 {
cbf95972
AM
9043 struct plt_entry *ent;
9044
9045 ent = find_plt_ent (&h->plt.plist, got2,
9046 bfd_link_pic (info) ? addend : 0);
f75e0e33 9047 if (ent == NULL
ce558b89 9048 || htab->elf.splt == NULL)
f75e0e33
AM
9049 {
9050 /* We didn't make a PLT entry for this symbol. This
9051 happens when statically linking PIC code, or when
9052 using -Bsymbolic. */
9053 }
9054 else
9055 {
9056 /* Relocation is to the entry for this symbol in the
9057 procedure linkage table. */
9058 unresolved_reloc = FALSE;
9059 if (htab->plt_type == PLT_NEW)
9060 relocation = (htab->glink->output_section->vma
9061 + htab->glink->output_offset
9062 + ent->glink_offset);
9063 else
ce558b89
AM
9064 relocation = (htab->elf.splt->output_section->vma
9065 + htab->elf.splt->output_offset
f75e0e33
AM
9066 + ent->plt.offset);
9067 }
9068 }
252b5132 9069
f75e0e33
AM
9070 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9071 addend specifies the GOT pointer offset within .got2.
9072 Don't apply it to the relocation field. */
9073 addend = 0;
8da6118f 9074 break;
252b5132 9075
70bccea4 9076 /* Relocate against _SDA_BASE_. */
7619e7c7 9077 case R_PPC_SDAREL16:
252b5132
RH
9078 {
9079 const char *name;
bd6c6e2b 9080 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9081
bd6c6e2b
AM
9082 if (sec == NULL
9083 || sec->output_section == NULL
9084 || !is_static_defined (sda))
3b4f3a11
AM
9085 {
9086 unresolved_reloc = TRUE;
9087 break;
9088 }
bd6c6e2b 9089 addend -= SYM_VAL (sda);
3b4f3a11 9090
a0f49396 9091 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9092 if (!(strcmp (name, ".sdata") == 0
9093 || strcmp (name, ".sbss") == 0))
252b5132 9094 {
25f53a85 9095 info->callbacks->einfo
695344c0 9096 /* xgettext:c-format */
8de848d8 9097 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9098 "in the wrong output section (%s)\n"),
d003868e 9099 input_bfd,
55fd94b0
AM
9100 sym_name,
9101 howto->name,
9102 name);
252b5132 9103 }
252b5132
RH
9104 }
9105 break;
9106
70bccea4 9107 /* Relocate against _SDA2_BASE_. */
7619e7c7 9108 case R_PPC_EMB_SDA2REL:
252b5132
RH
9109 {
9110 const char *name;
bd6c6e2b 9111 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9112
bd6c6e2b
AM
9113 if (sec == NULL
9114 || sec->output_section == NULL
9115 || !is_static_defined (sda))
3b4f3a11
AM
9116 {
9117 unresolved_reloc = TRUE;
9118 break;
9119 }
bd6c6e2b 9120 addend -= SYM_VAL (sda);
3b4f3a11 9121
a0f49396 9122 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9123 if (!(strcmp (name, ".sdata2") == 0
9124 || strcmp (name, ".sbss2") == 0))
252b5132 9125 {
25f53a85 9126 info->callbacks->einfo
695344c0 9127 /* xgettext:c-format */
8de848d8 9128 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9129 "in the wrong output section (%s)\n"),
d003868e 9130 input_bfd,
55fd94b0
AM
9131 sym_name,
9132 howto->name,
9133 name);
252b5132 9134 }
252b5132
RH
9135 }
9136 break;
9137
b9c361e0 9138 case R_PPC_VLE_LO16A:
86c95733 9139 relocation = relocation + addend;
08dc996f
AM
9140 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9141 contents + rel->r_offset, relocation,
9142 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9143 goto copy_reloc;
b9c361e0
JL
9144
9145 case R_PPC_VLE_LO16D:
86c95733 9146 relocation = relocation + addend;
08dc996f
AM
9147 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9148 contents + rel->r_offset, relocation,
9149 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9150 goto copy_reloc;
b9c361e0
JL
9151
9152 case R_PPC_VLE_HI16A:
86c95733 9153 relocation = (relocation + addend) >> 16;
08dc996f
AM
9154 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9155 contents + rel->r_offset, relocation,
9156 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9157 goto copy_reloc;
b9c361e0
JL
9158
9159 case R_PPC_VLE_HI16D:
86c95733 9160 relocation = (relocation + addend) >> 16;
08dc996f
AM
9161 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9162 contents + rel->r_offset, relocation,
9163 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9164 goto copy_reloc;
b9c361e0
JL
9165
9166 case R_PPC_VLE_HA16A:
86c95733 9167 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9168 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9169 contents + rel->r_offset, relocation,
9170 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9171 goto copy_reloc;
b9c361e0
JL
9172
9173 case R_PPC_VLE_HA16D:
86c95733 9174 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9175 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9176 contents + rel->r_offset, relocation,
9177 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9178 goto copy_reloc;
b9c361e0 9179
70bccea4 9180 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9181 case R_PPC_EMB_SDA21:
b9c361e0 9182 case R_PPC_VLE_SDA21:
7619e7c7 9183 case R_PPC_EMB_RELSDA:
b9c361e0 9184 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9185 {
9186 const char *name;
9187 int reg;
86c95733 9188 unsigned int insn;
bd6c6e2b 9189 struct elf_link_hash_entry *sda = NULL;
252b5132 9190
3b4f3a11
AM
9191 if (sec == NULL || sec->output_section == NULL)
9192 {
9193 unresolved_reloc = TRUE;
9194 break;
9195 }
9196
a0f49396 9197 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9198 if (strcmp (name, ".sdata") == 0
9199 || strcmp (name, ".sbss") == 0)
252b5132
RH
9200 {
9201 reg = 13;
bd6c6e2b 9202 sda = htab->sdata[0].sym;
252b5132 9203 }
93d1b056
AM
9204 else if (strcmp (name, ".sdata2") == 0
9205 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9206 {
9207 reg = 2;
bd6c6e2b 9208 sda = htab->sdata[1].sym;
252b5132 9209 }
8da6118f
KH
9210 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9211 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9212 {
9213 reg = 0;
9214 }
252b5132
RH
9215 else
9216 {
25f53a85 9217 info->callbacks->einfo
695344c0 9218 /* xgettext:c-format */
8de848d8 9219 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9220 "in the wrong output section (%s)\n"),
d003868e 9221 input_bfd,
55fd94b0
AM
9222 sym_name,
9223 howto->name,
9224 name);
252b5132
RH
9225
9226 bfd_set_error (bfd_error_bad_value);
b34976b6 9227 ret = FALSE;
c316a17c 9228 goto copy_reloc;
252b5132
RH
9229 }
9230
bd6c6e2b
AM
9231 if (sda != NULL)
9232 {
9233 if (!is_static_defined (sda))
9234 {
9235 unresolved_reloc = TRUE;
9236 break;
9237 }
9238 addend -= SYM_VAL (sda);
9239 }
9240
95f0d0d2 9241 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9242 if (reg == 0
9243 && (r_type == R_PPC_VLE_SDA21
9244 || r_type == R_PPC_VLE_SDA21_LO))
9245 {
86c95733
AM
9246 relocation = relocation + addend;
9247 addend = 0;
9248
9249 /* Force e_li insn, keeping RT from original insn. */
9250 insn &= 0x1f << 21;
9251 insn |= 28u << 26;
9252
9253 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9254 /* Top 4 bits of value to 17..20. */
9255 insn |= (relocation & 0xf0000) >> 5;
9256 /* Next 5 bits of the value to 11..15. */
9257 insn |= (relocation & 0xf800) << 5;
9258 /* And the final 11 bits of the value to bits 21 to 31. */
9259 insn |= relocation & 0x7ff;
9260
95f0d0d2 9261 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9262
9263 if (r_type == R_PPC_VLE_SDA21
9264 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9265 goto overflow;
c316a17c 9266 goto copy_reloc;
b9c361e0
JL
9267 }
9268 else if (r_type == R_PPC_EMB_SDA21
9269 || r_type == R_PPC_VLE_SDA21
9270 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9271 {
86c95733 9272 /* Fill in register field. */
252b5132 9273 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9274 }
95f0d0d2 9275 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9276 }
9277 break;
9278
b9c361e0
JL
9279 case R_PPC_VLE_SDAREL_LO16A:
9280 case R_PPC_VLE_SDAREL_LO16D:
9281 case R_PPC_VLE_SDAREL_HI16A:
9282 case R_PPC_VLE_SDAREL_HI16D:
9283 case R_PPC_VLE_SDAREL_HA16A:
9284 case R_PPC_VLE_SDAREL_HA16D:
9285 {
9286 bfd_vma value;
9287 const char *name;
b9c361e0
JL
9288 struct elf_link_hash_entry *sda = NULL;
9289
9290 if (sec == NULL || sec->output_section == NULL)
9291 {
9292 unresolved_reloc = TRUE;
9293 break;
9294 }
9295
a0f49396 9296 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9297 if (strcmp (name, ".sdata") == 0
9298 || strcmp (name, ".sbss") == 0)
5499c7c7 9299 sda = htab->sdata[0].sym;
93d1b056
AM
9300 else if (strcmp (name, ".sdata2") == 0
9301 || strcmp (name, ".sbss2") == 0)
5499c7c7 9302 sda = htab->sdata[1].sym;
b9c361e0
JL
9303 else
9304 {
4eca0228 9305 _bfd_error_handler
695344c0 9306 /* xgettext:c-format */
b9c361e0
JL
9307 (_("%B: the target (%s) of a %s relocation is "
9308 "in the wrong output section (%s)"),
9309 input_bfd,
9310 sym_name,
9311 howto->name,
9312 name);
9313
9314 bfd_set_error (bfd_error_bad_value);
9315 ret = FALSE;
c316a17c 9316 goto copy_reloc;
b9c361e0
JL
9317 }
9318
5499c7c7 9319 if (sda == NULL || !is_static_defined (sda))
b9c361e0 9320 {
5499c7c7
AM
9321 unresolved_reloc = TRUE;
9322 break;
b9c361e0 9323 }
5499c7c7 9324 value = relocation + addend - SYM_VAL (sda);
86c95733
AM
9325
9326 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9327 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9328 contents + rel->r_offset, value,
9329 split16a_type,
9330 htab->params->vle_reloc_fixup);
86c95733 9331 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9332 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9333 contents + rel->r_offset, value,
9334 split16d_type,
9335 htab->params->vle_reloc_fixup);
86c95733 9336 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9337 {
86c95733 9338 value = value >> 16;
08dc996f
AM
9339 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9340 contents + rel->r_offset, value,
9341 split16a_type,
9342 htab->params->vle_reloc_fixup);
b9c361e0 9343 }
86c95733 9344 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9345 {
86c95733 9346 value = value >> 16;
08dc996f
AM
9347 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9348 contents + rel->r_offset, value,
9349 split16d_type,
9350 htab->params->vle_reloc_fixup);
b9c361e0 9351 }
86c95733 9352 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9353 {
86c95733 9354 value = (value + 0x8000) >> 16;
08dc996f
AM
9355 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9356 contents + rel->r_offset, value,
9357 split16a_type,
9358 htab->params->vle_reloc_fixup);
b9c361e0 9359 }
86c95733 9360 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9361 {
86c95733 9362 value = (value + 0x8000) >> 16;
08dc996f
AM
9363 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9364 contents + rel->r_offset, value,
9365 split16d_type,
9366 htab->params->vle_reloc_fixup);
b9c361e0
JL
9367 }
9368 }
c316a17c 9369 goto copy_reloc;
b9c361e0 9370
83eef883
AFB
9371 case R_PPC_VLE_ADDR20:
9372 ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
9373 continue;
9374
70bccea4 9375 /* Relocate against the beginning of the section. */
7619e7c7
AM
9376 case R_PPC_SECTOFF:
9377 case R_PPC_SECTOFF_LO:
9378 case R_PPC_SECTOFF_HI:
9379 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9380 if (sec == NULL || sec->output_section == NULL)
9381 {
9382 unresolved_reloc = TRUE;
9383 break;
9384 }
252b5132 9385 addend -= sec->output_section->vma;
252b5132
RH
9386 break;
9387
70bccea4 9388 /* Negative relocations. */
7619e7c7
AM
9389 case R_PPC_EMB_NADDR32:
9390 case R_PPC_EMB_NADDR16:
9391 case R_PPC_EMB_NADDR16_LO:
9392 case R_PPC_EMB_NADDR16_HI:
9393 case R_PPC_EMB_NADDR16_HA:
8da6118f 9394 addend -= 2 * relocation;
252b5132
RH
9395 break;
9396
7619e7c7
AM
9397 case R_PPC_COPY:
9398 case R_PPC_GLOB_DAT:
9399 case R_PPC_JMP_SLOT:
9400 case R_PPC_RELATIVE:
e054468f 9401 case R_PPC_IRELATIVE:
7619e7c7
AM
9402 case R_PPC_PLT32:
9403 case R_PPC_PLTREL32:
9404 case R_PPC_PLT16_LO:
9405 case R_PPC_PLT16_HI:
9406 case R_PPC_PLT16_HA:
9407 case R_PPC_ADDR30:
9408 case R_PPC_EMB_RELSEC16:
9409 case R_PPC_EMB_RELST_LO:
9410 case R_PPC_EMB_RELST_HI:
9411 case R_PPC_EMB_RELST_HA:
9412 case R_PPC_EMB_BIT_FLD:
25f53a85 9413 info->callbacks->einfo
695344c0 9414 /* xgettext:c-format */
8de848d8 9415 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9416 input_bfd,
7619e7c7
AM
9417 howto->name,
9418 sym_name);
252b5132
RH
9419
9420 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9421 ret = FALSE;
c316a17c 9422 goto copy_reloc;
7619e7c7 9423 }
252b5132 9424
7619e7c7
AM
9425 /* Do any further special processing. */
9426 switch (r_type)
9427 {
9428 default:
9429 break;
9430
9431 case R_PPC_ADDR16_HA:
d7128ce4 9432 case R_PPC_REL16_HA:
a680de9a 9433 case R_PPC_REL16DX_HA:
7619e7c7
AM
9434 case R_PPC_SECTOFF_HA:
9435 case R_PPC_TPREL16_HA:
9436 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9437 case R_PPC_EMB_NADDR16_HA:
9438 case R_PPC_EMB_RELST_HA:
9439 /* It's just possible that this symbol is a weak symbol
7b609f53 9440 that's not actually defined anywhere. In that case,
7619e7c7
AM
9441 'sec' would be NULL, and we should leave the symbol
9442 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9443 if (sec == NULL)
9444 break;
1a0670f3 9445 /* Fall through. */
5c5f6e17
AM
9446
9447 case R_PPC_PLT16_HA:
9448 case R_PPC_GOT16_HA:
9449 case R_PPC_GOT_TLSGD16_HA:
9450 case R_PPC_GOT_TLSLD16_HA:
9451 case R_PPC_GOT_TPREL16_HA:
9452 case R_PPC_GOT_DTPREL16_HA:
9453 /* Add 0x10000 if sign bit in 0:15 is set.
9454 Bits 0:15 are not used. */
9455 addend += 0x8000;
7619e7c7 9456 break;
1fe532cf
AM
9457
9458 case R_PPC_ADDR16:
9459 case R_PPC_ADDR16_LO:
9460 case R_PPC_GOT16:
9461 case R_PPC_GOT16_LO:
9462 case R_PPC_SDAREL16:
9463 case R_PPC_SECTOFF:
9464 case R_PPC_SECTOFF_LO:
9465 case R_PPC_DTPREL16:
9466 case R_PPC_DTPREL16_LO:
9467 case R_PPC_TPREL16:
9468 case R_PPC_TPREL16_LO:
9469 case R_PPC_GOT_TLSGD16:
9470 case R_PPC_GOT_TLSGD16_LO:
9471 case R_PPC_GOT_TLSLD16:
9472 case R_PPC_GOT_TLSLD16_LO:
9473 case R_PPC_GOT_DTPREL16:
9474 case R_PPC_GOT_DTPREL16_LO:
9475 case R_PPC_GOT_TPREL16:
9476 case R_PPC_GOT_TPREL16_LO:
9477 {
9478 /* The 32-bit ABI lacks proper relocations to deal with
9479 certain 64-bit instructions. Prevent damage to bits
9480 that make up part of the insn opcode. */
9481 unsigned int insn, mask, lobit;
9482
95f0d0d2 9483 insn = bfd_get_32 (input_bfd,
c316a17c 9484 contents + rel->r_offset - d_offset);
1fe532cf
AM
9485 mask = 0;
9486 if (is_insn_ds_form (insn))
9487 mask = 3;
9488 else if (is_insn_dq_form (insn))
9489 mask = 15;
9490 else
9491 break;
a680de9a
PB
9492 relocation += addend;
9493 addend = insn & mask;
9494 lobit = mask & relocation;
1fe532cf
AM
9495 if (lobit != 0)
9496 {
a680de9a 9497 relocation ^= lobit;
1fe532cf 9498 info->callbacks->einfo
695344c0 9499 /* xgettext:c-format */
174d0a74 9500 (_("%H: error: %s against `%s' not a multiple of %u\n"),
1fe532cf
AM
9501 input_bfd, input_section, rel->r_offset,
9502 howto->name, sym_name, mask + 1);
9503 bfd_set_error (bfd_error_bad_value);
9504 ret = FALSE;
9505 }
1fe532cf
AM
9506 }
9507 break;
252b5132
RH
9508 }
9509
252b5132 9510#ifdef DEBUG
55fd94b0
AM
9511 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9512 "offset = %ld, addend = %ld\n",
252b5132 9513 howto->name,
8da6118f 9514 (int) r_type,
252b5132
RH
9515 sym_name,
9516 r_symndx,
7619e7c7 9517 (long) rel->r_offset,
8da6118f 9518 (long) addend);
252b5132
RH
9519#endif
9520
7619e7c7
AM
9521 if (unresolved_reloc
9522 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9523 && h->def_dynamic)
9524 && _bfd_elf_section_offset (output_bfd, info, input_section,
9525 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9526 {
25f53a85 9527 info->callbacks->einfo
695344c0 9528 /* xgettext:c-format */
174d0a74 9529 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9530 input_bfd, input_section, rel->r_offset,
7b609f53 9531 howto->name,
7619e7c7
AM
9532 sym_name);
9533 ret = FALSE;
9534 }
9535
86c95733
AM
9536 /* 16-bit fields in insns mostly have signed values, but a
9537 few insns have 16-bit unsigned values. Really, we should
9538 have different reloc types. */
9539 if (howto->complain_on_overflow != complain_overflow_dont
9540 && howto->dst_mask == 0xffff
9541 && (input_section->flags & SEC_CODE) != 0)
9542 {
9543 enum complain_overflow complain = complain_overflow_signed;
9544
9545 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9546 {
9547 unsigned int insn;
9548
9549 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9550 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9551 complain = complain_overflow_bitfield;
9552 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9553 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9554 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9555 complain = complain_overflow_unsigned;
9556 }
9557 if (howto->complain_on_overflow != complain)
9558 {
9559 alt_howto = *howto;
9560 alt_howto.complain_on_overflow = complain;
9561 howto = &alt_howto;
9562 }
9563 }
9564
a680de9a
PB
9565 if (r_type == R_PPC_REL16DX_HA)
9566 {
9567 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9568 if (rel->r_offset + 4 > input_section->size)
9569 r = bfd_reloc_outofrange;
9570 else
9571 {
9572 unsigned int insn;
9573
9574 relocation += addend;
9575 relocation -= (rel->r_offset
9576 + input_section->output_offset
9577 + input_section->output_section->vma);
9578 relocation >>= 16;
9579 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9580 insn &= ~0x1fffc1;
9581 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9582 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9583 r = bfd_reloc_ok;
9584 }
9585 }
9586 else
9587 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9588 rel->r_offset, relocation, addend);
252b5132 9589
7619e7c7 9590 if (r != bfd_reloc_ok)
252b5132 9591 {
7619e7c7 9592 if (r == bfd_reloc_overflow)
252b5132 9593 {
c3301df1 9594 overflow:
8131c122
AM
9595 /* On code like "if (foo) foo();" don't report overflow
9596 on a branch to zero when foo is undefined. */
9597 if (!warned
9598 && !(h != NULL
9599 && (h->root.type == bfd_link_hash_undefweak
9600 || h->root.type == bfd_link_hash_undefined)
9601 && is_branch_reloc (r_type)))
1a72702b
AM
9602 info->callbacks->reloc_overflow
9603 (info, (h ? &h->root : NULL), sym_name, howto->name,
9604 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9605 }
9606 else
9607 {
25f53a85 9608 info->callbacks->einfo
695344c0 9609 /* xgettext:c-format */
174d0a74 9610 (_("%H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9611 input_bfd, input_section, rel->r_offset,
9612 howto->name, sym_name, (int) r);
7619e7c7 9613 ret = FALSE;
252b5132
RH
9614 }
9615 }
c316a17c
AM
9616 copy_reloc:
9617 if (wrel != rel)
9618 *wrel = *rel;
9619 }
9620
9621 if (wrel != rel)
9622 {
9623 Elf_Internal_Shdr *rel_hdr;
9624 size_t deleted = rel - wrel;
9625
9626 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9627 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9628 if (rel_hdr->sh_size == 0)
9629 {
9630 /* It is too late to remove an empty reloc section. Leave
9631 one NONE reloc.
9632 ??? What is wrong with an empty section??? */
9633 rel_hdr->sh_size = rel_hdr->sh_entsize;
9634 deleted -= 1;
9635 wrel++;
9636 }
9637 relend = wrel;
9638 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9639 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9640 input_section->reloc_count -= deleted;
252b5132
RH
9641 }
9642
252b5132
RH
9643#ifdef DEBUG
9644 fprintf (stderr, "\n");
9645#endif
9646
53291d1f
AM
9647 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9648 && input_section->size != input_section->rawsize
9649 && (strcmp (input_section->output_section->name, ".init") == 0
9650 || strcmp (input_section->output_section->name, ".fini") == 0))
9651 {
9652 /* Branch around the trampolines. */
9653 unsigned int insn = B + input_section->size - input_section->rawsize;
9654 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9655 }
9656
5446cbdf 9657 if (htab->params->ppc476_workaround
795bc6b3 9658 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9659 && (!bfd_link_relocatable (info)
795bc6b3
AM
9660 || (input_section->output_section->alignment_power
9661 >= htab->params->pagesize_p2)))
5446cbdf 9662 {
5446cbdf 9663 bfd_vma start_addr, end_addr, addr;
795bc6b3 9664 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9665
5446cbdf 9666 if (relax_info->workaround_size != 0)
40fd06d1
AM
9667 {
9668 bfd_byte *p;
9669 unsigned int n;
9670 bfd_byte fill[4];
9671
9672 bfd_put_32 (input_bfd, BA, fill);
9673 p = contents + input_section->size - relax_info->workaround_size;
9674 n = relax_info->workaround_size >> 2;
9675 while (n--)
9676 {
9677 memcpy (p, fill, 4);
9678 p += 4;
9679 }
9680 }
5446cbdf
AM
9681
9682 /* The idea is: Replace the last instruction on a page with a
9683 branch to a patch area. Put the insn there followed by a
9684 branch back to the next page. Complicated a little by
9685 needing to handle moved conditional branches, and by not
9686 wanting to touch data-in-text. */
9687
9688 start_addr = (input_section->output_section->vma
9689 + input_section->output_offset);
9690 end_addr = (start_addr + input_section->size
9691 - relax_info->workaround_size);
9692 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9693 addr < end_addr;
9694 addr += pagesize)
9695 {
9696 bfd_vma offset = addr - start_addr;
9697 Elf_Internal_Rela *lo, *hi;
9698 bfd_boolean is_data;
9699 bfd_vma patch_off, patch_addr;
9700 unsigned int insn;
9701
9702 /* Do we have a data reloc at this offset? If so, leave
9703 the word alone. */
9704 is_data = FALSE;
9705 lo = relocs;
668e22e5
AM
9706 hi = relend;
9707 rel = NULL;
5446cbdf
AM
9708 while (lo < hi)
9709 {
9710 rel = lo + (hi - lo) / 2;
9711 if (rel->r_offset < offset)
9712 lo = rel + 1;
668e22e5 9713 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9714 hi = rel;
9715 else
9716 {
9717 switch (ELF32_R_TYPE (rel->r_info))
9718 {
9719 case R_PPC_ADDR32:
9720 case R_PPC_UADDR32:
9721 case R_PPC_REL32:
9722 case R_PPC_ADDR30:
9723 is_data = TRUE;
9724 break;
9725 default:
9726 break;
9727 }
9728 break;
9729 }
9730 }
9731 if (is_data)
9732 continue;
9733
b4ab4364
AM
9734 /* Some instructions can be left alone too. Unconditional
9735 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9736 avoid the icache failure.
9737
9738 The problem occurs due to prefetch across a page boundary
9739 where stale instructions can be fetched from the next
9740 page, and the mechanism for flushing these bad
9741 instructions fails under certain circumstances. The
9742 unconditional branches:
9743 1) Branch: b, bl, ba, bla,
9744 2) Branch Conditional: bc, bca, bcl, bcla,
9745 3) Branch Conditional to Link Register: bclr, bclrl,
9746 where (2) and (3) have BO=0x14 making them unconditional,
9747 prevent the bad prefetch because the prefetch itself is
9748 affected by these instructions. This happens even if the
9749 instruction is not executed.
9750
9751 A bctr example:
9752 .
9753 . lis 9,new_page@ha
9754 . addi 9,9,new_page@l
9755 . mtctr 9
9756 . bctr
9757 . nop
9758 . nop
9759 . new_page:
9760 .
9761 The bctr is not predicted taken due to ctr not being
9762 ready, so prefetch continues on past the bctr into the
9763 new page which might have stale instructions. If they
9764 fail to be flushed, then they will be executed after the
9765 bctr executes. Either of the following modifications
9766 prevent the bad prefetch from happening in the first
9767 place:
9768 .
1b786873
L
9769 . lis 9,new_page@ha lis 9,new_page@ha
9770 . addi 9,9,new_page@l addi 9,9,new_page@l
9771 . mtctr 9 mtctr 9
9772 . bctr bctr
b4ab4364 9773 . nop b somewhere_else
1b786873
L
9774 . b somewhere_else nop
9775 . new_page: new_page:
b4ab4364 9776 . */
5446cbdf 9777 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9778 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9779 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9780 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9781 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9782 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9783 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9784 continue;
9785
9786 patch_addr = (start_addr + input_section->size
9787 - relax_info->workaround_size);
9788 patch_addr = (patch_addr + 15) & -16;
9789 patch_off = patch_addr - start_addr;
9790 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9791
9792 if (rel != NULL
9793 && rel->r_offset >= offset
9794 && rel->r_offset < offset + 4)
9795 {
f8b44781
AM
9796 asection *sreloc;
9797
668e22e5
AM
9798 /* If the insn we are patching had a reloc, adjust the
9799 reloc r_offset so that the reloc applies to the moved
9800 location. This matters for -r and --emit-relocs. */
9801 if (rel + 1 != relend)
9802 {
9803 Elf_Internal_Rela tmp = *rel;
9804
9805 /* Keep the relocs sorted by r_offset. */
9806 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9807 relend[-1] = tmp;
9808 }
9809 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9810
9811 /* Adjust REL16 addends too. */
9812 switch (ELF32_R_TYPE (relend[-1].r_info))
9813 {
9814 case R_PPC_REL16:
9815 case R_PPC_REL16_LO:
9816 case R_PPC_REL16_HI:
9817 case R_PPC_REL16_HA:
9818 relend[-1].r_addend += patch_off - offset;
9819 break;
9820 default:
9821 break;
9822 }
9823
9824 /* If we are building a PIE or shared library with
9825 non-PIC objects, perhaps we had a dynamic reloc too?
9826 If so, the dynamic reloc must move with the insn. */
9827 sreloc = elf_section_data (input_section)->sreloc;
9828 if (sreloc != NULL)
9829 {
1d5c94cb 9830 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9831 bfd_vma soffset;
9832
1d5c94cb
AM
9833 slo = (Elf32_External_Rela *) sreloc->contents;
9834 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9835 soffset = (offset + input_section->output_section->vma
9836 + input_section->output_offset);
9837 while (slo < shi)
9838 {
1d5c94cb
AM
9839 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9840 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9841 &outrel);
f8b44781
AM
9842 if (outrel.r_offset < soffset)
9843 slo = srel + 1;
9844 else if (outrel.r_offset > soffset + 3)
9845 shi = srel;
9846 else
9847 {
1d5c94cb 9848 if (srel + 1 != srelend)
f8b44781 9849 {
1d5c94cb
AM
9850 memmove (srel, srel + 1,
9851 (srelend - (srel + 1)) * sizeof (*srel));
9852 srel = srelend - 1;
f8b44781
AM
9853 }
9854 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9855 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9856 (bfd_byte *) srel);
f8b44781
AM
9857 break;
9858 }
9859 }
9860 }
668e22e5
AM
9861 }
9862 else
9863 rel = NULL;
9864
5446cbdf
AM
9865 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9866 && (insn & 2) == 0 /* relative */)
9867 {
9868 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9869
9870 delta += offset - patch_off;
0e1862bb 9871 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 9872 delta = 0;
0e1862bb 9873 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
9874 {
9875 enum elf_ppc_reloc_type r_type;
9876
9877 r_type = ELF32_R_TYPE (relend[-1].r_info);
9878 if (r_type == R_PPC_REL14_BRTAKEN)
9879 insn |= BRANCH_PREDICT_BIT;
9880 else if (r_type == R_PPC_REL14_BRNTAKEN)
9881 insn &= ~BRANCH_PREDICT_BIT;
9882 else
9883 BFD_ASSERT (r_type == R_PPC_REL14);
9884
9885 if ((r_type == R_PPC_REL14_BRTAKEN
9886 || r_type == R_PPC_REL14_BRNTAKEN)
9887 && delta + 0x8000 < 0x10000
9888 && (bfd_signed_vma) delta < 0)
9889 insn ^= BRANCH_PREDICT_BIT;
9890 }
5446cbdf
AM
9891 if (delta + 0x8000 < 0x10000)
9892 {
9893 bfd_put_32 (input_bfd,
9894 (insn & ~0xfffc) | (delta & 0xfffc),
9895 contents + patch_off);
9896 patch_off += 4;
9897 bfd_put_32 (input_bfd,
9898 B | ((offset + 4 - patch_off) & 0x3fffffc),
9899 contents + patch_off);
9900 patch_off += 4;
9901 }
9902 else
9903 {
668e22e5
AM
9904 if (rel != NULL)
9905 {
9906 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
9907
9908 relend[-1].r_offset += 8;
9909 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
9910 }
5446cbdf
AM
9911 bfd_put_32 (input_bfd,
9912 (insn & ~0xfffc) | 8,
9913 contents + patch_off);
9914 patch_off += 4;
9915 bfd_put_32 (input_bfd,
9916 B | ((offset + 4 - patch_off) & 0x3fffffc),
9917 contents + patch_off);
9918 patch_off += 4;
9919 bfd_put_32 (input_bfd,
9920 B | ((delta - 8) & 0x3fffffc),
9921 contents + patch_off);
9922 patch_off += 4;
9923 }
9924 }
9925 else
9926 {
9927 bfd_put_32 (input_bfd, insn, contents + patch_off);
9928 patch_off += 4;
9929 bfd_put_32 (input_bfd,
9930 B | ((offset + 4 - patch_off) & 0x3fffffc),
9931 contents + patch_off);
9932 patch_off += 4;
9933 }
9934 BFD_ASSERT (patch_off <= input_section->size);
9935 relax_info->workaround_size = input_section->size - patch_off;
9936 }
9937 }
9938
252b5132
RH
9939 return ret;
9940}
252b5132 9941\f
25dbc73a
AM
9942/* Finish up dynamic symbol handling. We set the contents of various
9943 dynamic sections here. */
c5fccbec 9944
b34976b6 9945static bfd_boolean
25dbc73a
AM
9946ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9947 struct bfd_link_info *info,
9948 struct elf_link_hash_entry *h,
9949 Elf_Internal_Sym *sym)
e1a9cb8e 9950{
25dbc73a 9951 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
9952 struct plt_entry *ent;
9953 bfd_boolean doneone;
e1a9cb8e 9954
25dbc73a
AM
9955#ifdef DEBUG
9956 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9957 h->root.root.string);
9958#endif
e1a9cb8e 9959
25dbc73a
AM
9960 htab = ppc_elf_hash_table (info);
9961 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 9962
a6aa5195
AM
9963 doneone = FALSE;
9964 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9965 if (ent->plt.offset != (bfd_vma) -1)
9966 {
9967 if (!doneone)
9968 {
9969 Elf_Internal_Rela rela;
9970 bfd_byte *loc;
9971 bfd_vma reloc_index;
e1a9cb8e 9972
e054468f 9973 if (htab->plt_type == PLT_NEW
25f23106
AM
9974 || !htab->elf.dynamic_sections_created
9975 || h->dynindx == -1)
9d8504b1
PB
9976 reloc_index = ent->plt.offset / 4;
9977 else
9978 {
9979 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9980 / htab->plt_slot_size);
9981 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 9982 && htab->plt_type == PLT_OLD)
9d8504b1
PB
9983 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9984 }
9985
a6aa5195
AM
9986 /* This symbol has an entry in the procedure linkage table.
9987 Set it up. */
e054468f 9988 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
9989 && htab->elf.dynamic_sections_created
9990 && h->dynindx != -1)
a6aa5195 9991 {
9d8504b1
PB
9992 bfd_vma got_offset;
9993 const bfd_vma *plt_entry;
5b914448 9994
9d8504b1
PB
9995 /* The first three entries in .got.plt are reserved. */
9996 got_offset = (reloc_index + 3) * 4;
9997
9998 /* Use the right PLT. */
0e1862bb 9999 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10000 : ppc_elf_vxworks_plt_entry;
10001
10002 /* Fill in the .plt on VxWorks. */
0e1862bb 10003 if (bfd_link_pic (info))
9d8504b1 10004 {
9d8504b1 10005 bfd_put_32 (output_bfd,
e87d4038 10006 plt_entry[0] | PPC_HA (got_offset),
ce558b89 10007 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10008 bfd_put_32 (output_bfd,
e87d4038 10009 plt_entry[1] | PPC_LO (got_offset),
ce558b89 10010 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10011 }
10012 else
10013 {
e87d4038 10014 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
10015
10016 bfd_put_32 (output_bfd,
e87d4038 10017 plt_entry[0] | PPC_HA (got_loc),
ce558b89 10018 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10019 bfd_put_32 (output_bfd,
e87d4038 10020 plt_entry[1] | PPC_LO (got_loc),
ce558b89 10021 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10022 }
10023
10024 bfd_put_32 (output_bfd, plt_entry[2],
ce558b89 10025 htab->elf.splt->contents + ent->plt.offset + 8);
9d8504b1 10026 bfd_put_32 (output_bfd, plt_entry[3],
ce558b89 10027 htab->elf.splt->contents + ent->plt.offset + 12);
9d8504b1
PB
10028
10029 /* This instruction is an immediate load. The value loaded is
10030 the byte offset of the R_PPC_JMP_SLOT relocation from the
10031 start of the .rela.plt section. The value is stored in the
10032 low-order 16 bits of the load instruction. */
10033 /* NOTE: It appears that this is now an index rather than a
10034 prescaled offset. */
5b914448 10035 bfd_put_32 (output_bfd,
9d8504b1 10036 plt_entry[4] | reloc_index,
ce558b89 10037 htab->elf.splt->contents + ent->plt.offset + 16);
9d8504b1
PB
10038 /* This instruction is a PC-relative branch whose target is
10039 the start of the PLT section. The address of this branch
10040 instruction is 20 bytes beyond the start of this PLT entry.
10041 The address is encoded in bits 6-29, inclusive. The value
10042 stored is right-shifted by two bits, permitting a 26-bit
10043 offset. */
5b914448
AM
10044 bfd_put_32 (output_bfd,
10045 (plt_entry[5]
9d8504b1 10046 | (-(ent->plt.offset + 20) & 0x03fffffc)),
ce558b89 10047 htab->elf.splt->contents + ent->plt.offset + 20);
9d8504b1 10048 bfd_put_32 (output_bfd, plt_entry[6],
ce558b89 10049 htab->elf.splt->contents + ent->plt.offset + 24);
9d8504b1 10050 bfd_put_32 (output_bfd, plt_entry[7],
ce558b89 10051 htab->elf.splt->contents + ent->plt.offset + 28);
9d8504b1
PB
10052
10053 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10054 the address immediately after the "bctr" instruction
9d8504b1 10055 in this PLT entry. */
ce558b89
AM
10056 bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
10057 + htab->elf.splt->output_offset
9d8504b1 10058 + ent->plt.offset + 16),
ce558b89 10059 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10060
0e1862bb 10061 if (!bfd_link_pic (info))
9d8504b1
PB
10062 {
10063 /* Fill in a couple of entries in .rela.plt.unloaded. */
10064 loc = htab->srelplt2->contents
10065 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10066 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10067 * sizeof (Elf32_External_Rela));
10068
10069 /* Provide the @ha relocation for the first instruction. */
ce558b89
AM
10070 rela.r_offset = (htab->elf.splt->output_section->vma
10071 + htab->elf.splt->output_offset
9d8504b1 10072 + ent->plt.offset + 2);
636ce3f5 10073 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10074 R_PPC_ADDR16_HA);
10075 rela.r_addend = got_offset;
10076 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10077 loc += sizeof (Elf32_External_Rela);
10078
10079 /* Provide the @l relocation for the second instruction. */
ce558b89
AM
10080 rela.r_offset = (htab->elf.splt->output_section->vma
10081 + htab->elf.splt->output_offset
9d8504b1 10082 + ent->plt.offset + 6);
636ce3f5 10083 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10084 R_PPC_ADDR16_LO);
10085 rela.r_addend = got_offset;
10086 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10087 loc += sizeof (Elf32_External_Rela);
10088
10089 /* Provide a relocation for the GOT entry corresponding to this
10090 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10091 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10092 + htab->elf.sgotplt->output_offset
9d8504b1 10093 + got_offset);
7325306f 10094 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10095 R_PPC_ADDR32);
10096 rela.r_addend = ent->plt.offset + 16;
10097 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10098 }
10099
10100 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10101 In particular, the offset for the relocation is not the
10102 address of the PLT entry for this function, as specified
10103 by the ABI. Instead, the offset is set to the address of
10104 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10105 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10106 + htab->elf.sgotplt->output_offset
9d8504b1
PB
10107 + got_offset);
10108
a6aa5195
AM
10109 }
10110 else
10111 {
ce558b89 10112 asection *splt = htab->elf.splt;
25f23106
AM
10113 if (!htab->elf.dynamic_sections_created
10114 || h->dynindx == -1)
ce558b89 10115 splt = htab->elf.iplt;
e054468f
AM
10116
10117 rela.r_offset = (splt->output_section->vma
10118 + splt->output_offset
9d8504b1 10119 + ent->plt.offset);
e054468f 10120 if (htab->plt_type == PLT_OLD
25f23106
AM
10121 || !htab->elf.dynamic_sections_created
10122 || h->dynindx == -1)
9d8504b1
PB
10123 {
10124 /* We don't need to fill in the .plt. The ppc dynamic
10125 linker will fill it in. */
10126 }
10127 else
10128 {
10129 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10130 + htab->glink->output_section->vma
10131 + htab->glink->output_offset);
10132 bfd_put_32 (output_bfd, val,
e054468f 10133 splt->contents + ent->plt.offset);
9d8504b1 10134 }
a6aa5195 10135 }
e1a9cb8e 10136
a6aa5195 10137 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10138 rela.r_addend = 0;
e054468f
AM
10139 if (!htab->elf.dynamic_sections_created
10140 || h->dynindx == -1)
10141 {
10142 BFD_ASSERT (h->type == STT_GNU_IFUNC
10143 && h->def_regular
10144 && (h->root.type == bfd_link_hash_defined
10145 || h->root.type == bfd_link_hash_defweak));
10146 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10147 rela.r_addend = SYM_VAL (h);
10148 }
10149 else
10150 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10151
25f23106
AM
10152 if (!htab->elf.dynamic_sections_created
10153 || h->dynindx == -1)
82e66161
AM
10154 {
10155 loc = (htab->elf.irelplt->contents
10156 + (htab->elf.irelplt->reloc_count++
10157 * sizeof (Elf32_External_Rela)));
10158 htab->local_ifunc_resolver = 1;
10159 }
e054468f 10160 else
82e66161
AM
10161 {
10162 loc = (htab->elf.srelplt->contents
10163 + reloc_index * sizeof (Elf32_External_Rela));
10164 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10165 htab->maybe_local_ifunc_resolver = 1;
10166 }
a6aa5195 10167 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10168
a6aa5195
AM
10169 if (!h->def_regular)
10170 {
0eb4a168
AM
10171 /* Mark the symbol as undefined, rather than as
10172 defined in the .plt section. Leave the value if
10173 there were any relocations where pointer equality
10174 matters (this is a clue for the dynamic linker, to
10175 make function pointer comparisons work between an
10176 application and shared library), otherwise set it
10177 to zero. */
a6aa5195 10178 sym->st_shndx = SHN_UNDEF;
0eb4a168 10179 if (!h->pointer_equality_needed)
a6aa5195 10180 sym->st_value = 0;
0eb4a168
AM
10181 else if (!h->ref_regular_nonweak)
10182 {
625af618
AM
10183 /* This breaks function pointer comparisons, but
10184 that is better than breaking tests for a NULL
0eb4a168 10185 function pointer. */
0eb4a168
AM
10186 sym->st_value = 0;
10187 }
a6aa5195 10188 }
de972ffa 10189 else if (h->type == STT_GNU_IFUNC
0e1862bb 10190 && !bfd_link_pic (info))
de972ffa
AM
10191 {
10192 /* Set the value of ifunc symbols in a non-pie
10193 executable to the glink entry. This is to avoid
10194 text relocations. We can't do this for ifunc in
10195 allocate_dynrelocs, as we do for normal dynamic
10196 function symbols with plt entries, because we need
10197 to keep the original value around for the ifunc
10198 relocation. */
10199 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10200 (output_bfd, htab->glink->output_section));
5b914448
AM
10201 sym->st_value = (ent->glink_offset
10202 + htab->glink->output_offset
de972ffa
AM
10203 + htab->glink->output_section->vma);
10204 }
a6aa5195
AM
10205 doneone = TRUE;
10206 }
e1a9cb8e 10207
e054468f 10208 if (htab->plt_type == PLT_NEW
25f23106
AM
10209 || !htab->elf.dynamic_sections_created
10210 || h->dynindx == -1)
a6aa5195 10211 {
a7f2871e 10212 unsigned char *p;
ce558b89 10213 asection *splt = htab->elf.splt;
25f23106
AM
10214 if (!htab->elf.dynamic_sections_created
10215 || h->dynindx == -1)
ce558b89 10216 splt = htab->elf.iplt;
e1a9cb8e 10217
a7f2871e
AM
10218 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10219
5446cbdf 10220 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10221 {
10222 bfd_put_32 (output_bfd, LWZ_11_3, p);
10223 p += 4;
10224 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10225 p += 4;
10226 bfd_put_32 (output_bfd, MR_0_3, p);
10227 p += 4;
10228 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10229 p += 4;
10230 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10231 p += 4;
10232 bfd_put_32 (output_bfd, BEQLR, p);
10233 p += 4;
10234 bfd_put_32 (output_bfd, MR_3_0, p);
10235 p += 4;
10236 bfd_put_32 (output_bfd, NOP, p);
10237 p += 4;
10238 }
10239
10240 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10241
0e1862bb 10242 if (!bfd_link_pic (info))
e054468f
AM
10243 /* We only need one non-PIC glink stub. */
10244 break;
a6aa5195
AM
10245 }
10246 else
10247 break;
10248 }
e1a9cb8e 10249
25dbc73a
AM
10250 if (h->needs_copy)
10251 {
10252 asection *s;
10253 Elf_Internal_Rela rela;
10254 bfd_byte *loc;
e1a9cb8e 10255
25dbc73a 10256 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10257
25dbc73a
AM
10258#ifdef DEBUG
10259 fprintf (stderr, ", copy");
10260#endif
e1a9cb8e 10261
25dbc73a 10262 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10263
4dc4a9a5 10264 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10265 s = htab->relsbss;
afbf7e8e 10266 else if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f 10267 s = htab->elf.sreldynrelro;
25dbc73a 10268 else
9d19e4fd 10269 s = htab->elf.srelbss;
25dbc73a 10270 BFD_ASSERT (s != NULL);
e1a9cb8e 10271
e87d4038 10272 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10273 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10274 rela.r_addend = 0;
10275 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10276 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10277 }
e1a9cb8e 10278
25dbc73a
AM
10279#ifdef DEBUG
10280 fprintf (stderr, "\n");
10281#endif
e1a9cb8e 10282
25dbc73a
AM
10283 return TRUE;
10284}
10285\f
10286static enum elf_reloc_type_class
7e612e98
AM
10287ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10288 const asection *rel_sec,
10289 const Elf_Internal_Rela *rela)
e1a9cb8e 10290{
7e612e98
AM
10291 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10292
ce558b89 10293 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
10294 return reloc_class_ifunc;
10295
25dbc73a
AM
10296 switch (ELF32_R_TYPE (rela->r_info))
10297 {
10298 case R_PPC_RELATIVE:
10299 return reloc_class_relative;
25dbc73a
AM
10300 case R_PPC_JMP_SLOT:
10301 return reloc_class_plt;
10302 case R_PPC_COPY:
10303 return reloc_class_copy;
10304 default:
10305 return reloc_class_normal;
10306 }
e1a9cb8e 10307}
25dbc73a
AM
10308\f
10309/* Finish up the dynamic sections. */
e1a9cb8e 10310
25dbc73a
AM
10311static bfd_boolean
10312ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10313 struct bfd_link_info *info)
e1a9cb8e 10314{
25dbc73a
AM
10315 asection *sdyn;
10316 struct ppc_elf_link_hash_table *htab;
1fe44d79 10317 bfd_vma got;
e87d4038
AM
10318 bfd *dynobj;
10319 bfd_boolean ret = TRUE;
e1a9cb8e 10320
25dbc73a
AM
10321#ifdef DEBUG
10322 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10323#endif
6b0817e5 10324
25dbc73a 10325 htab = ppc_elf_hash_table (info);
ce558b89 10326 dynobj = htab->elf.dynobj;
3d4d4302 10327 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
e1a9cb8e 10328
1fe44d79
AM
10329 got = 0;
10330 if (htab->elf.hgot != NULL)
e87d4038 10331 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10332
25dbc73a 10333 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10334 {
25dbc73a 10335 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10336
ce558b89 10337 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 10338
25dbc73a
AM
10339 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10340 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10341 for (; dyncon < dynconend; dyncon++)
10342 {
10343 Elf_Internal_Dyn dyn;
10344 asection *s;
e1a9cb8e 10345
9d8504b1 10346 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10347
25dbc73a
AM
10348 switch (dyn.d_tag)
10349 {
10350 case DT_PLTGOT:
9d8504b1 10351 if (htab->is_vxworks)
ce558b89 10352 s = htab->elf.sgotplt;
9d8504b1 10353 else
ce558b89 10354 s = htab->elf.splt;
25dbc73a
AM
10355 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10356 break;
86bbe32f 10357
25dbc73a 10358 case DT_PLTRELSZ:
ce558b89 10359 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 10360 break;
e1a9cb8e 10361
25dbc73a 10362 case DT_JMPREL:
ce558b89 10363 s = htab->elf.srelplt;
25dbc73a
AM
10364 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10365 break;
2f89ff8d 10366
1fe44d79
AM
10367 case DT_PPC_GOT:
10368 dyn.d_un.d_ptr = got;
d7128ce4
AM
10369 break;
10370
82e66161
AM
10371 case DT_TEXTREL:
10372 if (htab->local_ifunc_resolver)
10373 info->callbacks->einfo
10374 (_("%X%P: text relocations and GNU indirect "
10375 "functions will result in a segfault at runtime\n"));
10376 else if (htab->maybe_local_ifunc_resolver)
10377 info->callbacks->einfo
10378 (_("%P: warning: text relocations and GNU indirect "
10379 "functions may result in a segfault at runtime\n"));
10380 continue;
10381
25dbc73a 10382 default:
7a2b07ff
NS
10383 if (htab->is_vxworks
10384 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10385 break;
25dbc73a
AM
10386 continue;
10387 }
4c45e5c9 10388
25dbc73a
AM
10389 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10390 }
10391 }
4c45e5c9 10392
6528b6eb
AM
10393 if (htab->elf.sgot != NULL
10394 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
25dbc73a 10395 {
ce558b89
AM
10396 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10397 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 10398 {
e79f5955 10399 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10400
e87d4038
AM
10401 p += htab->elf.hgot->root.u.def.value;
10402 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10403 {
10404 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10405 so that a function can easily find the address of
10406 _GLOBAL_OFFSET_TABLE_. */
10407 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10408 < htab->elf.hgot->root.u.def.section->size);
10409 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10410 }
3b36f7e6 10411
e87d4038 10412 if (sdyn != NULL)
e79f5955
AM
10413 {
10414 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10415 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10416 < htab->elf.hgot->root.u.def.section->size);
10417 bfd_put_32 (output_bfd, val, p);
10418 }
e87d4038
AM
10419 }
10420 else
10421 {
695344c0 10422 /* xgettext:c-format */
8de848d8 10423 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85 10424 htab->elf.hgot->root.root.string,
ce558b89
AM
10425 (htab->elf.sgotplt != NULL
10426 ? htab->elf.sgotplt->name
10427 : htab->elf.sgot->name));
e87d4038
AM
10428 bfd_set_error (bfd_error_bad_value);
10429 ret = FALSE;
10430 }
25dbc73a 10431
ce558b89 10432 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
10433 }
10434
9d8504b1 10435 /* Fill in the first entry in the VxWorks procedure linkage table. */
6528b6eb
AM
10436 if (htab->is_vxworks
10437 && htab->elf.splt != NULL
10438 && htab->elf.splt->size != 0
10439 && htab->elf.splt->output_section != bfd_abs_section_ptr)
9d8504b1 10440 {
6528b6eb 10441 asection *splt = htab->elf.splt;
9d8504b1 10442 /* Use the right PLT. */
0e1862bb 10443 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10444 ? ppc_elf_vxworks_pic_plt0_entry
10445 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10446
0e1862bb 10447 if (!bfd_link_pic (info))
9d8504b1 10448 {
e87d4038 10449 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10450
e87d4038 10451 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10452 splt->contents + 0);
e87d4038 10453 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10454 splt->contents + 4);
10455 }
10456 else
10457 {
10458 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10459 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10460 }
10461 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10462 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10463 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10464 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10465 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10466 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10467
0e1862bb 10468 if (! bfd_link_pic (info))
9d8504b1
PB
10469 {
10470 Elf_Internal_Rela rela;
10471 bfd_byte *loc;
10472
10473 loc = htab->srelplt2->contents;
10474
10475 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
10476 rela.r_offset = (htab->elf.splt->output_section->vma
10477 + htab->elf.splt->output_offset
9d8504b1 10478 + 2);
636ce3f5 10479 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10480 rela.r_addend = 0;
10481 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10482 loc += sizeof (Elf32_External_Rela);
5b914448 10483
9d8504b1 10484 /* Output the @l relocation for the second instruction. */
ce558b89
AM
10485 rela.r_offset = (htab->elf.splt->output_section->vma
10486 + htab->elf.splt->output_offset
9d8504b1 10487 + 6);
636ce3f5 10488 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10489 rela.r_addend = 0;
10490 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10491 loc += sizeof (Elf32_External_Rela);
10492
10493 /* Fix up the remaining relocations. They may have the wrong
10494 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10495 in which symbols were output. */
10496 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10497 {
10498 Elf_Internal_Rela rel;
10499
10500 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10501 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10502 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10503 loc += sizeof (Elf32_External_Rela);
10504
10505 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10506 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10507 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10508 loc += sizeof (Elf32_External_Rela);
10509
10510 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10511 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10512 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10513 loc += sizeof (Elf32_External_Rela);
10514 }
10515 }
10516 }
10517
e054468f
AM
10518 if (htab->glink != NULL
10519 && htab->glink->contents != NULL
10520 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10521 {
10522 unsigned char *p;
10523 unsigned char *endp;
a6aa5195 10524 bfd_vma res0;
d7128ce4 10525 unsigned int i;
a6aa5195
AM
10526
10527 /*
10528 * PIC glink code is the following:
10529 *
10530 * # ith PLT code stub.
10531 * addis 11,30,(plt+(i-1)*4-got)@ha
10532 * lwz 11,(plt+(i-1)*4-got)@l(11)
10533 * mtctr 11
10534 * bctr
10535 *
10536 * # A table of branches, one for each plt entry.
176a0d42 10537 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10538 * # addresses, so (r11 - res_0) gives the plt index * 4.
10539 * res_0: b PLTresolve
10540 * res_1: b PLTresolve
10541 * .
10542 * # Some number of entries towards the end can be nops
10543 * res_n_m3: nop
10544 * res_n_m2: nop
10545 * res_n_m1:
10546 *
10547 * PLTresolve:
10548 * addis 11,11,(1f-res_0)@ha
10549 * mflr 0
10550 * bcl 20,31,1f
10551 * 1: addi 11,11,(1b-res_0)@l
10552 * mflr 12
10553 * mtlr 0
10554 * sub 11,11,12 # r11 = index * 4
10555 * addis 12,12,(got+4-1b)@ha
10556 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10557 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10558 * mtctr 0
10559 * add 0,11,11
10560 * add 11,0,11 # r11 = index * 12 = reloc offset.
10561 * bctr
10562 */
10563 static const unsigned int pic_plt_resolve[] =
10564 {
10565 ADDIS_11_11,
10566 MFLR_0,
10567 BCL_20_31,
10568 ADDI_11_11,
10569 MFLR_12,
10570 MTLR_0,
10571 SUB_11_11_12,
10572 ADDIS_12_12,
10573 LWZ_0_12,
10574 LWZ_12_12,
10575 MTCTR_0,
10576 ADD_0_11_11,
10577 ADD_11_0_11,
10578 BCTR,
10579 NOP,
10580 NOP
10581 };
10582
176a0d42
AM
10583 /*
10584 * Non-PIC glink code is a little simpler.
10585 *
10586 * # ith PLT code stub.
10587 * lis 11,(plt+(i-1)*4)@ha
10588 * lwz 11,(plt+(i-1)*4)@l(11)
10589 * mtctr 11
10590 * bctr
10591 *
10592 * The branch table is the same, then comes
10593 *
10594 * PLTresolve:
10595 * lis 12,(got+4)@ha
10596 * addis 11,11,(-res_0)@ha
10597 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10598 * addi 11,11,(-res_0)@l # r11 = index * 4
10599 * mtctr 0
10600 * add 0,11,11
10601 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10602 * add 11,0,11 # r11 = index * 12 = reloc offset.
10603 * bctr
10604 */
d7128ce4
AM
10605 static const unsigned int plt_resolve[] =
10606 {
a6aa5195
AM
10607 LIS_12,
10608 ADDIS_11_11,
10609 LWZ_0_12,
10610 ADDI_11_11,
d7128ce4 10611 MTCTR_0,
7e8aeb9a 10612 ADD_0_11_11,
a6aa5195 10613 LWZ_12_12,
7e8aeb9a 10614 ADD_11_0_11,
d7128ce4
AM
10615 BCTR,
10616 NOP,
10617 NOP,
a6aa5195
AM
10618 NOP,
10619 NOP,
10620 NOP,
10621 NOP,
d7128ce4
AM
10622 NOP
10623 };
10624
a6aa5195
AM
10625 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10626 abort ();
10627 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10628 abort ();
10629
a6aa5195 10630 /* Build the branch table, one for each plt entry (less one),
86b9da88 10631 and perhaps some padding. */
a6aa5195
AM
10632 p = htab->glink->contents;
10633 p += htab->glink_pltresolve;
86b9da88
AM
10634 endp = htab->glink->contents;
10635 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10636 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10637 {
10638 bfd_put_32 (output_bfd, B + endp - p, p);
10639 p += 4;
10640 }
10641 while (p < endp)
10642 {
10643 bfd_put_32 (output_bfd, NOP, p);
10644 p += 4;
10645 }
10646
7e8aeb9a 10647 res0 = (htab->glink_pltresolve
86b9da88
AM
10648 + htab->glink->output_section->vma
10649 + htab->glink->output_offset);
10650
da3a2088
AM
10651 if (htab->params->ppc476_workaround)
10652 {
10653 /* Ensure that a call stub at the end of a page doesn't
10654 result in prefetch over the end of the page into the
10655 glink branch table. */
10656 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10657 bfd_vma page_addr;
10658 bfd_vma glink_start = (htab->glink->output_section->vma
10659 + htab->glink->output_offset);
10660
10661 for (page_addr = res0 & -pagesize;
10662 page_addr > glink_start;
10663 page_addr -= pagesize)
10664 {
10665 /* We have a plt call stub that may need fixing. */
10666 bfd_byte *loc;
10667 unsigned int insn;
10668
10669 loc = htab->glink->contents + page_addr - 4 - glink_start;
10670 insn = bfd_get_32 (output_bfd, loc);
10671 if (insn == BCTR)
10672 {
10673 /* By alignment, we know that there must be at least
10674 one other call stub before this one. */
10675 insn = bfd_get_32 (output_bfd, loc - 16);
10676 if (insn == BCTR)
10677 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10678 else
10679 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10680 }
10681 }
10682 }
10683
86b9da88 10684 /* Last comes the PLTresolve stub. */
0e1862bb 10685 if (bfd_link_pic (info))
7e8aeb9a 10686 {
a6aa5195 10687 bfd_vma bcl;
d7128ce4 10688
a6aa5195 10689 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10690 {
da3a2088
AM
10691 unsigned int insn = pic_plt_resolve[i];
10692
10693 if (htab->params->ppc476_workaround && insn == NOP)
10694 insn = BA + 0;
10695 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10696 p += 4;
10697 }
a6aa5195
AM
10698 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10699
10700 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10701 + htab->glink->output_section->vma
10702 + htab->glink->output_offset);
10703
10704 bfd_put_32 (output_bfd,
10705 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10706 bfd_put_32 (output_bfd,
10707 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10708 bfd_put_32 (output_bfd,
10709 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10710 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10711 {
10712 bfd_put_32 (output_bfd,
10713 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10714 bfd_put_32 (output_bfd,
10715 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10716 }
10717 else
10718 {
10719 bfd_put_32 (output_bfd,
10720 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10721 bfd_put_32 (output_bfd,
10722 LWZ_12_12 + 4, p + 9*4);
10723 }
7e8aeb9a
AM
10724 }
10725 else
d7128ce4 10726 {
a6aa5195 10727 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10728 {
da3a2088
AM
10729 unsigned int insn = plt_resolve[i];
10730
10731 if (htab->params->ppc476_workaround && insn == NOP)
10732 insn = BA + 0;
10733 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10734 p += 4;
10735 }
a6aa5195
AM
10736 p -= 4 * ARRAY_SIZE (plt_resolve);
10737
10738 bfd_put_32 (output_bfd,
10739 LIS_12 + PPC_HA (got + 4), p + 0*4);
10740 bfd_put_32 (output_bfd,
10741 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10742 bfd_put_32 (output_bfd,
10743 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10744 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10745 {
10746 bfd_put_32 (output_bfd,
10747 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10748 bfd_put_32 (output_bfd,
10749 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10750 }
10751 else
10752 {
10753 bfd_put_32 (output_bfd,
10754 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10755 bfd_put_32 (output_bfd,
10756 LWZ_12_12 + 4, p + 6*4);
10757 }
d7128ce4 10758 }
d7128ce4
AM
10759 }
10760
6177242a
AM
10761 if (htab->glink_eh_frame != NULL
10762 && htab->glink_eh_frame->contents != NULL)
10763 {
10764 unsigned char *p = htab->glink_eh_frame->contents;
10765 bfd_vma val;
10766
6177242a
AM
10767 p += sizeof (glink_eh_frame_cie);
10768 /* FDE length. */
6177242a
AM
10769 p += 4;
10770 /* CIE pointer. */
6177242a
AM
10771 p += 4;
10772 /* Offset to .glink. */
10773 val = (htab->glink->output_section->vma
10774 + htab->glink->output_offset);
10775 val -= (htab->glink_eh_frame->output_section->vma
10776 + htab->glink_eh_frame->output_offset);
10777 val -= p - htab->glink_eh_frame->contents;
10778 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10779
dbaa2011 10780 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10781 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10782 htab->glink_eh_frame,
10783 htab->glink_eh_frame->contents))
10784 return FALSE;
10785 }
10786
e87d4038 10787 return ret;
25dbc73a 10788}
e1a9cb8e 10789\f
6d00b590 10790#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10791#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10792#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10793#define TARGET_BIG_NAME "elf32-powerpc"
10794#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10795#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10796#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10797#ifdef __QNXTARGET__
10798#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10799#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10800#else
252b5132 10801#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10802#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10803#endif
b1342370 10804#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10805#define elf_info_to_howto ppc_elf_info_to_howto
10806
10807#ifdef EM_CYGNUS_POWERPC
10808#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10809#endif
10810
10811#ifdef EM_PPC_OLD
10812#define ELF_MACHINE_ALT2 EM_PPC_OLD
10813#endif
10814
10815#define elf_backend_plt_not_loaded 1
5474d94f 10816#define elf_backend_want_dynrelro 1
252b5132 10817#define elf_backend_can_gc_sections 1
51b64d56 10818#define elf_backend_can_refcount 1
b491616a 10819#define elf_backend_rela_normal 1
53291d1f 10820#define elf_backend_caches_rawsize 1
252b5132 10821
43c40ab2 10822#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10823#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10824#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10825#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10826#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10827#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10828#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10829#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10830
feee612b 10831#define elf_backend_object_p ppc_elf_object_p
252b5132 10832#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
252b5132
RH
10833#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10834#define elf_backend_relocate_section ppc_elf_relocate_section
10835#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10836#define elf_backend_check_relocs ppc_elf_check_relocs
c0e331c7 10837#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
7fce784e 10838#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10839#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10840#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10841#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10842#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10843#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10844#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10845#define elf_backend_fake_sections ppc_elf_fake_sections
10846#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
954b63d4 10847#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10848#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10849#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10850#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10851#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10852#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10853#define elf_backend_final_write_processing ppc_elf_final_write_processing
10854#define elf_backend_write_section ppc_elf_write_section
551b43fd 10855#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10856#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10857#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10858#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10859#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10860
10861#include "elf32-target.h"
9d8504b1 10862
7b8e7dad
AM
10863/* FreeBSD Target */
10864
10865#undef TARGET_LITTLE_SYM
10866#undef TARGET_LITTLE_NAME
10867
10868#undef TARGET_BIG_SYM
6d00b590 10869#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
10870#undef TARGET_BIG_NAME
10871#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10872
10873#undef ELF_OSABI
10874#define ELF_OSABI ELFOSABI_FREEBSD
10875
10876#undef elf32_bed
10877#define elf32_bed elf32_powerpc_fbsd_bed
10878
10879#include "elf32-target.h"
10880
9d8504b1
PB
10881/* VxWorks Target */
10882
10883#undef TARGET_LITTLE_SYM
10884#undef TARGET_LITTLE_NAME
10885
10886#undef TARGET_BIG_SYM
6d00b590 10887#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
10888#undef TARGET_BIG_NAME
10889#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10890
7b8e7dad
AM
10891#undef ELF_OSABI
10892
d5e3d971
PB
10893/* VxWorks uses the elf default section flags for .plt. */
10894static const struct bfd_elf_special_section *
4aef7643 10895ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
9d8504b1 10896{
d5e3d971
PB
10897 if (sec->name == NULL)
10898 return NULL;
10899
10900 if (strcmp (sec->name, ".plt") == 0)
10901 return _bfd_elf_get_sec_type_attr (abfd, sec);
10902
10903 return ppc_elf_get_sec_type_attr (abfd, sec);
10904}
9d8504b1
PB
10905
10906/* Like ppc_elf_link_hash_table_create, but overrides
10907 appropriately for VxWorks. */
10908static struct bfd_link_hash_table *
10909ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10910{
10911 struct bfd_link_hash_table *ret;
10912
10913 ret = ppc_elf_link_hash_table_create (abfd);
10914 if (ret)
10915 {
10916 struct ppc_elf_link_hash_table *htab
954b63d4 10917 = (struct ppc_elf_link_hash_table *)ret;
9d8504b1 10918 htab->is_vxworks = 1;
4a3dc543 10919 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
10920 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10921 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10922 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10923 }
10924 return ret;
10925}
10926
10927/* Tweak magic VxWorks symbols as they are loaded. */
10928static bfd_boolean
10929ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10930 struct bfd_link_info *info,
10931 Elf_Internal_Sym *sym,
4aef7643
AM
10932 const char **namep,
10933 flagword *flagsp,
9d8504b1
PB
10934 asection **secp,
10935 bfd_vma *valp)
10936{
4aef7643
AM
10937 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
10938 valp))
9d8504b1
PB
10939 return FALSE;
10940
4aef7643 10941 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
9d8504b1
PB
10942}
10943
9d8504b1
PB
10944static void
10945ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10946{
4aef7643
AM
10947 ppc_elf_final_write_processing (abfd, linker);
10948 elf_vxworks_final_write_processing (abfd, linker);
9d8504b1
PB
10949}
10950
10951/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10952 define it. */
10953#undef elf_backend_want_plt_sym
10954#define elf_backend_want_plt_sym 1
10955#undef elf_backend_want_got_plt
10956#define elf_backend_want_got_plt 1
10957#undef elf_backend_got_symbol_offset
10958#define elf_backend_got_symbol_offset 0
10959#undef elf_backend_plt_not_loaded
10960#define elf_backend_plt_not_loaded 0
10961#undef elf_backend_plt_readonly
10962#define elf_backend_plt_readonly 1
10963#undef elf_backend_got_header_size
10964#define elf_backend_got_header_size 12
64f52338
AM
10965#undef elf_backend_dtrel_excludes_plt
10966#define elf_backend_dtrel_excludes_plt 1
9d8504b1 10967
468392fb
AM
10968#undef bfd_elf32_get_synthetic_symtab
10969
9d8504b1
PB
10970#undef bfd_elf32_bfd_link_hash_table_create
10971#define bfd_elf32_bfd_link_hash_table_create \
10972 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
10973#undef elf_backend_add_symbol_hook
10974#define elf_backend_add_symbol_hook \
10975 ppc_elf_vxworks_add_symbol_hook
10976#undef elf_backend_link_output_symbol_hook
10977#define elf_backend_link_output_symbol_hook \
9c72ff84 10978 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
10979#undef elf_backend_final_write_processing
10980#define elf_backend_final_write_processing \
10981 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
10982#undef elf_backend_get_sec_type_attr
10983#define elf_backend_get_sec_type_attr \
10984 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
10985#undef elf_backend_emit_relocs
10986#define elf_backend_emit_relocs \
10987 elf_vxworks_emit_relocs
10988
10989#undef elf32_bed
10990#define elf32_bed ppc_elf_vxworks_bed
e054468f 10991#undef elf_backend_post_process_headers
9d8504b1
PB
10992
10993#include "elf32-target.h"