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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
137/* The number of relocations in the PLTResolve slot when when creating
138 a shared library. */
139#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
140
d7128ce4 141/* Some instructions. */
d7128ce4 142#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
143#define ADDIS_11_30 0x3d7e0000
144#define ADDIS_12_12 0x3d8c0000
d7128ce4 145#define ADDI_11_11 0x396b0000
d7128ce4 146#define ADD_0_11_11 0x7c0b5a14
a7f2871e 147#define ADD_3_12_2 0x7c6c1214
d7128ce4 148#define ADD_11_0_11 0x7d605a14
a6aa5195 149#define B 0x48000000
da3a2088 150#define BA 0x48000002
a6aa5195 151#define BCL_20_31 0x429f0005
d7128ce4 152#define BCTR 0x4e800420
a7f2871e
AM
153#define BEQLR 0x4d820020
154#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
155#define LIS_11 0x3d600000
156#define LIS_12 0x3d800000
a6aa5195
AM
157#define LWZU_0_12 0x840c0000
158#define LWZ_0_12 0x800c0000
a7f2871e 159#define LWZ_11_3 0x81630000
a6aa5195
AM
160#define LWZ_11_11 0x816b0000
161#define LWZ_11_30 0x817e0000
a7f2871e 162#define LWZ_12_3 0x81830000
a6aa5195 163#define LWZ_12_12 0x818c0000
a7f2871e
AM
164#define MR_0_3 0x7c601b78
165#define MR_3_0 0x7c030378
a6aa5195
AM
166#define MFLR_0 0x7c0802a6
167#define MFLR_12 0x7d8802a6
168#define MTCTR_0 0x7c0903a6
169#define MTCTR_11 0x7d6903a6
170#define MTLR_0 0x7c0803a6
171#define NOP 0x60000000
172#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
173
174/* Offset of tp and dtp pointers from start of TLS block. */
175#define TP_OFFSET 0x7000
176#define DTP_OFFSET 0x8000
e87d4038
AM
177
178/* The value of a defined global symbol. */
179#define SYM_VAL(SYM) \
180 ((SYM)->root.u.def.section->output_section->vma \
181 + (SYM)->root.u.def.section->output_offset \
182 + (SYM)->root.u.def.value)
7fce784e 183\f
e47cd125 184static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 185
8da6118f 186static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
187 /* This reloc does nothing. */
188 HOWTO (R_PPC_NONE, /* type */
189 0, /* rightshift */
6346d5ca
AM
190 3, /* size (0 = byte, 1 = short, 2 = long) */
191 0, /* bitsize */
b34976b6 192 FALSE, /* pc_relative */
252b5132 193 0, /* bitpos */
86c95733 194 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
195 bfd_elf_generic_reloc, /* special_function */
196 "R_PPC_NONE", /* name */
b34976b6 197 FALSE, /* partial_inplace */
252b5132
RH
198 0, /* src_mask */
199 0, /* dst_mask */
b34976b6 200 FALSE), /* pcrel_offset */
252b5132
RH
201
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC_ADDR32, /* type */
204 0, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 32, /* bitsize */
b34976b6 207 FALSE, /* pc_relative */
252b5132 208 0, /* bitpos */
86c95733 209 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
210 bfd_elf_generic_reloc, /* special_function */
211 "R_PPC_ADDR32", /* name */
b34976b6 212 FALSE, /* partial_inplace */
252b5132
RH
213 0, /* src_mask */
214 0xffffffff, /* dst_mask */
b34976b6 215 FALSE), /* pcrel_offset */
252b5132
RH
216
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC_ADDR24, /* type */
220 0, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 26, /* bitsize */
b34976b6 223 FALSE, /* pc_relative */
252b5132 224 0, /* bitpos */
86c95733 225 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC_ADDR24", /* name */
b34976b6 228 FALSE, /* partial_inplace */
252b5132
RH
229 0, /* src_mask */
230 0x3fffffc, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
252b5132
RH
232
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC_ADDR16, /* type */
235 0, /* rightshift */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
237 16, /* bitsize */
b34976b6 238 FALSE, /* pc_relative */
252b5132
RH
239 0, /* bitpos */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC_ADDR16", /* name */
b34976b6 243 FALSE, /* partial_inplace */
252b5132
RH
244 0, /* src_mask */
245 0xffff, /* dst_mask */
b34976b6 246 FALSE), /* pcrel_offset */
252b5132
RH
247
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC_ADDR16_LO, /* type */
250 0, /* rightshift */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
252 16, /* bitsize */
b34976b6 253 FALSE, /* pc_relative */
252b5132
RH
254 0, /* bitpos */
255 complain_overflow_dont,/* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC_ADDR16_LO", /* name */
b34976b6 258 FALSE, /* partial_inplace */
252b5132
RH
259 0, /* src_mask */
260 0xffff, /* dst_mask */
b34976b6 261 FALSE), /* pcrel_offset */
252b5132
RH
262
263 /* The high order 16 bits of an address. */
264 HOWTO (R_PPC_ADDR16_HI, /* type */
265 16, /* rightshift */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
252b5132
RH
269 0, /* bitpos */
270 complain_overflow_dont, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC_ADDR16_HI", /* name */
b34976b6 273 FALSE, /* partial_inplace */
252b5132
RH
274 0, /* src_mask */
275 0xffff, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
252b5132
RH
277
278 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 279 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
280 HOWTO (R_PPC_ADDR16_HA, /* type */
281 16, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
252b5132
RH
285 0, /* bitpos */
286 complain_overflow_dont, /* complain_on_overflow */
287 ppc_elf_addr16_ha_reloc, /* special_function */
288 "R_PPC_ADDR16_HA", /* name */
b34976b6 289 FALSE, /* partial_inplace */
252b5132
RH
290 0, /* src_mask */
291 0xffff, /* dst_mask */
b34976b6 292 FALSE), /* pcrel_offset */
252b5132
RH
293
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC_ADDR14, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 16, /* bitsize */
b34976b6 300 FALSE, /* pc_relative */
252b5132 301 0, /* bitpos */
86c95733 302 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC_ADDR14", /* name */
b34976b6 305 FALSE, /* partial_inplace */
252b5132
RH
306 0, /* src_mask */
307 0xfffc, /* dst_mask */
b34976b6 308 FALSE), /* pcrel_offset */
252b5132
RH
309
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
8da6118f 312 bits must be zero. */
252b5132
RH
313 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
314 0, /* rightshift */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
316 16, /* bitsize */
b34976b6 317 FALSE, /* pc_relative */
252b5132 318 0, /* bitpos */
86c95733 319 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
320 bfd_elf_generic_reloc, /* special_function */
321 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 322 FALSE, /* partial_inplace */
252b5132
RH
323 0, /* src_mask */
324 0xfffc, /* dst_mask */
b34976b6 325 FALSE), /* pcrel_offset */
252b5132
RH
326
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
b34976b6 334 FALSE, /* pc_relative */
252b5132 335 0, /* bitpos */
86c95733 336 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
337 bfd_elf_generic_reloc, /* special_function */
338 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 339 FALSE, /* partial_inplace */
252b5132
RH
340 0, /* src_mask */
341 0xfffc, /* dst_mask */
b34976b6 342 FALSE), /* pcrel_offset */
252b5132 343
8da6118f 344 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
345 HOWTO (R_PPC_REL24, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 26, /* bitsize */
b34976b6 349 TRUE, /* pc_relative */
252b5132
RH
350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC_REL24", /* name */
b34976b6 354 FALSE, /* partial_inplace */
252b5132
RH
355 0, /* src_mask */
356 0x3fffffc, /* dst_mask */
b34976b6 357 TRUE), /* pcrel_offset */
252b5132 358
8da6118f 359 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
360 HOWTO (R_PPC_REL14, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 16, /* bitsize */
b34976b6 364 TRUE, /* pc_relative */
252b5132
RH
365 0, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_PPC_REL14", /* name */
b34976b6 369 FALSE, /* partial_inplace */
252b5132
RH
370 0, /* src_mask */
371 0xfffc, /* dst_mask */
b34976b6 372 TRUE), /* pcrel_offset */
252b5132 373
8da6118f 374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
375 the branch is expected to be taken. The lower two bits must be
376 zero. */
377 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 TRUE, /* pc_relative */
252b5132
RH
382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 386 FALSE, /* partial_inplace */
252b5132
RH
387 0, /* src_mask */
388 0xfffc, /* dst_mask */
b34976b6 389 TRUE), /* pcrel_offset */
252b5132 390
8da6118f 391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
392 the branch is not expected to be taken. The lower two bits must
393 be zero. */
394 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 16, /* bitsize */
b34976b6 398 TRUE, /* pc_relative */
252b5132
RH
399 0, /* bitpos */
400 complain_overflow_signed, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 403 FALSE, /* partial_inplace */
252b5132
RH
404 0, /* src_mask */
405 0xfffc, /* dst_mask */
b34976b6 406 TRUE), /* pcrel_offset */
252b5132
RH
407
408 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
409 symbol. */
410 HOWTO (R_PPC_GOT16, /* type */
411 0, /* rightshift */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
413 16, /* bitsize */
b34976b6 414 FALSE, /* pc_relative */
252b5132
RH
415 0, /* bitpos */
416 complain_overflow_signed, /* complain_on_overflow */
3ce51288 417 ppc_elf_unhandled_reloc, /* special_function */
252b5132 418 "R_PPC_GOT16", /* name */
b34976b6 419 FALSE, /* partial_inplace */
252b5132
RH
420 0, /* src_mask */
421 0xffff, /* dst_mask */
b34976b6 422 FALSE), /* pcrel_offset */
252b5132
RH
423
424 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
425 the symbol. */
426 HOWTO (R_PPC_GOT16_LO, /* type */
427 0, /* rightshift */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
429 16, /* bitsize */
b34976b6 430 FALSE, /* pc_relative */
252b5132
RH
431 0, /* bitpos */
432 complain_overflow_dont, /* complain_on_overflow */
3ce51288 433 ppc_elf_unhandled_reloc, /* special_function */
252b5132 434 "R_PPC_GOT16_LO", /* name */
b34976b6 435 FALSE, /* partial_inplace */
252b5132
RH
436 0, /* src_mask */
437 0xffff, /* dst_mask */
b34976b6 438 FALSE), /* pcrel_offset */
252b5132
RH
439
440 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
441 the symbol. */
442 HOWTO (R_PPC_GOT16_HI, /* type */
443 16, /* rightshift */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
b34976b6 446 FALSE, /* pc_relative */
252b5132 447 0, /* bitpos */
86c95733 448 complain_overflow_dont, /* complain_on_overflow */
3ce51288 449 ppc_elf_unhandled_reloc, /* special_function */
252b5132 450 "R_PPC_GOT16_HI", /* name */
b34976b6 451 FALSE, /* partial_inplace */
252b5132
RH
452 0, /* src_mask */
453 0xffff, /* dst_mask */
b34976b6 454 FALSE), /* pcrel_offset */
252b5132
RH
455
456 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
457 the symbol. */
458 HOWTO (R_PPC_GOT16_HA, /* type */
459 16, /* rightshift */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
461 16, /* bitsize */
b34976b6 462 FALSE, /* pc_relative */
252b5132 463 0, /* bitpos */
86c95733 464 complain_overflow_dont, /* complain_on_overflow */
3ce51288 465 ppc_elf_unhandled_reloc, /* special_function */
252b5132 466 "R_PPC_GOT16_HA", /* name */
b34976b6 467 FALSE, /* partial_inplace */
252b5132
RH
468 0, /* src_mask */
469 0xffff, /* dst_mask */
b34976b6 470 FALSE), /* pcrel_offset */
252b5132
RH
471
472 /* Like R_PPC_REL24, but referring to the procedure linkage table
473 entry for the symbol. */
474 HOWTO (R_PPC_PLTREL24, /* type */
475 0, /* rightshift */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
477 26, /* bitsize */
b34976b6 478 TRUE, /* pc_relative */
252b5132 479 0, /* bitpos */
3ce51288
AM
480 complain_overflow_signed, /* complain_on_overflow */
481 ppc_elf_unhandled_reloc, /* special_function */
252b5132 482 "R_PPC_PLTREL24", /* name */
b34976b6 483 FALSE, /* partial_inplace */
252b5132
RH
484 0, /* src_mask */
485 0x3fffffc, /* dst_mask */
b34976b6 486 TRUE), /* pcrel_offset */
252b5132
RH
487
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC_COPY, /* type */
494 0, /* rightshift */
495 2, /* size (0 = byte, 1 = short, 2 = long) */
496 32, /* bitsize */
b34976b6 497 FALSE, /* pc_relative */
252b5132 498 0, /* bitpos */
86c95733 499 complain_overflow_dont, /* complain_on_overflow */
3ce51288 500 ppc_elf_unhandled_reloc, /* special_function */
252b5132 501 "R_PPC_COPY", /* name */
b34976b6 502 FALSE, /* partial_inplace */
252b5132
RH
503 0, /* src_mask */
504 0, /* dst_mask */
b34976b6 505 FALSE), /* pcrel_offset */
252b5132
RH
506
507 /* Like R_PPC_ADDR32, but used when setting global offset table
508 entries. */
509 HOWTO (R_PPC_GLOB_DAT, /* type */
510 0, /* rightshift */
511 2, /* size (0 = byte, 1 = short, 2 = long) */
512 32, /* bitsize */
b34976b6 513 FALSE, /* pc_relative */
252b5132 514 0, /* bitpos */
86c95733 515 complain_overflow_dont, /* complain_on_overflow */
3ce51288 516 ppc_elf_unhandled_reloc, /* special_function */
252b5132 517 "R_PPC_GLOB_DAT", /* name */
b34976b6 518 FALSE, /* partial_inplace */
252b5132
RH
519 0, /* src_mask */
520 0xffffffff, /* dst_mask */
b34976b6 521 FALSE), /* pcrel_offset */
252b5132
RH
522
523 /* Marks a procedure linkage table entry for a symbol. */
524 HOWTO (R_PPC_JMP_SLOT, /* type */
525 0, /* rightshift */
526 2, /* size (0 = byte, 1 = short, 2 = long) */
527 32, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
252b5132 529 0, /* bitpos */
86c95733 530 complain_overflow_dont, /* complain_on_overflow */
3ce51288 531 ppc_elf_unhandled_reloc, /* special_function */
252b5132 532 "R_PPC_JMP_SLOT", /* name */
b34976b6 533 FALSE, /* partial_inplace */
252b5132
RH
534 0, /* src_mask */
535 0, /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
252b5132
RH
537
538 /* Used only by the dynamic linker. When the object is run, this
539 longword is set to the load address of the object, plus the
540 addend. */
541 HOWTO (R_PPC_RELATIVE, /* type */
542 0, /* rightshift */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
544 32, /* bitsize */
b34976b6 545 FALSE, /* pc_relative */
252b5132 546 0, /* bitpos */
86c95733 547 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
548 bfd_elf_generic_reloc, /* special_function */
549 "R_PPC_RELATIVE", /* name */
b34976b6 550 FALSE, /* partial_inplace */
252b5132
RH
551 0, /* src_mask */
552 0xffffffff, /* dst_mask */
b34976b6 553 FALSE), /* pcrel_offset */
252b5132
RH
554
555 /* Like R_PPC_REL24, but uses the value of the symbol within the
556 object rather than the final value. Normally used for
557 _GLOBAL_OFFSET_TABLE_. */
558 HOWTO (R_PPC_LOCAL24PC, /* type */
559 0, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 26, /* bitsize */
b34976b6 562 TRUE, /* pc_relative */
252b5132
RH
563 0, /* bitpos */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_PPC_LOCAL24PC", /* name */
b34976b6 567 FALSE, /* partial_inplace */
252b5132
RH
568 0, /* src_mask */
569 0x3fffffc, /* dst_mask */
b34976b6 570 TRUE), /* pcrel_offset */
252b5132
RH
571
572 /* Like R_PPC_ADDR32, but may be unaligned. */
573 HOWTO (R_PPC_UADDR32, /* type */
574 0, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 32, /* bitsize */
b34976b6 577 FALSE, /* pc_relative */
252b5132 578 0, /* bitpos */
86c95733 579 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
580 bfd_elf_generic_reloc, /* special_function */
581 "R_PPC_UADDR32", /* name */
b34976b6 582 FALSE, /* partial_inplace */
252b5132
RH
583 0, /* src_mask */
584 0xffffffff, /* dst_mask */
b34976b6 585 FALSE), /* pcrel_offset */
252b5132
RH
586
587 /* Like R_PPC_ADDR16, but may be unaligned. */
588 HOWTO (R_PPC_UADDR16, /* type */
589 0, /* rightshift */
590 1, /* size (0 = byte, 1 = short, 2 = long) */
591 16, /* bitsize */
b34976b6 592 FALSE, /* pc_relative */
252b5132
RH
593 0, /* bitpos */
594 complain_overflow_bitfield, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_PPC_UADDR16", /* name */
b34976b6 597 FALSE, /* partial_inplace */
252b5132
RH
598 0, /* src_mask */
599 0xffff, /* dst_mask */
b34976b6 600 FALSE), /* pcrel_offset */
252b5132
RH
601
602 /* 32-bit PC relative */
603 HOWTO (R_PPC_REL32, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 32, /* bitsize */
b34976b6 607 TRUE, /* pc_relative */
252b5132 608 0, /* bitpos */
86c95733 609 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC_REL32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
252b5132
RH
613 0, /* src_mask */
614 0xffffffff, /* dst_mask */
b34976b6 615 TRUE), /* pcrel_offset */
252b5132
RH
616
617 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 618 FIXME: not supported. */
252b5132
RH
619 HOWTO (R_PPC_PLT32, /* type */
620 0, /* rightshift */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
622 32, /* bitsize */
b34976b6 623 FALSE, /* pc_relative */
252b5132 624 0, /* bitpos */
86c95733 625 complain_overflow_dont, /* complain_on_overflow */
3ce51288 626 ppc_elf_unhandled_reloc, /* special_function */
252b5132 627 "R_PPC_PLT32", /* name */
b34976b6 628 FALSE, /* partial_inplace */
252b5132
RH
629 0, /* src_mask */
630 0, /* dst_mask */
b34976b6 631 FALSE), /* pcrel_offset */
252b5132
RH
632
633 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 634 FIXME: not supported. */
252b5132
RH
635 HOWTO (R_PPC_PLTREL32, /* type */
636 0, /* rightshift */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
638 32, /* bitsize */
b34976b6 639 TRUE, /* pc_relative */
252b5132 640 0, /* bitpos */
86c95733 641 complain_overflow_dont, /* complain_on_overflow */
3ce51288 642 ppc_elf_unhandled_reloc, /* special_function */
252b5132 643 "R_PPC_PLTREL32", /* name */
b34976b6 644 FALSE, /* partial_inplace */
252b5132
RH
645 0, /* src_mask */
646 0, /* dst_mask */
b34976b6 647 TRUE), /* pcrel_offset */
252b5132
RH
648
649 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
650 the symbol. */
651 HOWTO (R_PPC_PLT16_LO, /* type */
652 0, /* rightshift */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
654 16, /* bitsize */
b34976b6 655 FALSE, /* pc_relative */
252b5132
RH
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
3ce51288 658 ppc_elf_unhandled_reloc, /* special_function */
252b5132 659 "R_PPC_PLT16_LO", /* name */
b34976b6 660 FALSE, /* partial_inplace */
252b5132
RH
661 0, /* src_mask */
662 0xffff, /* dst_mask */
b34976b6 663 FALSE), /* pcrel_offset */
252b5132
RH
664
665 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
666 the symbol. */
667 HOWTO (R_PPC_PLT16_HI, /* type */
668 16, /* rightshift */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
670 16, /* bitsize */
b34976b6 671 FALSE, /* pc_relative */
252b5132 672 0, /* bitpos */
86c95733 673 complain_overflow_dont, /* complain_on_overflow */
3ce51288 674 ppc_elf_unhandled_reloc, /* special_function */
252b5132 675 "R_PPC_PLT16_HI", /* name */
b34976b6 676 FALSE, /* partial_inplace */
252b5132
RH
677 0, /* src_mask */
678 0xffff, /* dst_mask */
b34976b6 679 FALSE), /* pcrel_offset */
252b5132
RH
680
681 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
682 the symbol. */
683 HOWTO (R_PPC_PLT16_HA, /* type */
684 16, /* rightshift */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
686 16, /* bitsize */
b34976b6 687 FALSE, /* pc_relative */
252b5132 688 0, /* bitpos */
86c95733 689 complain_overflow_dont, /* complain_on_overflow */
3ce51288 690 ppc_elf_unhandled_reloc, /* special_function */
252b5132 691 "R_PPC_PLT16_HA", /* name */
b34976b6 692 FALSE, /* partial_inplace */
252b5132
RH
693 0, /* src_mask */
694 0xffff, /* dst_mask */
b34976b6 695 FALSE), /* pcrel_offset */
252b5132
RH
696
697 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
698 small data items. */
699 HOWTO (R_PPC_SDAREL16, /* type */
700 0, /* rightshift */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
702 16, /* bitsize */
b34976b6 703 FALSE, /* pc_relative */
252b5132
RH
704 0, /* bitpos */
705 complain_overflow_signed, /* complain_on_overflow */
3ce51288 706 ppc_elf_unhandled_reloc, /* special_function */
252b5132 707 "R_PPC_SDAREL16", /* name */
b34976b6 708 FALSE, /* partial_inplace */
252b5132
RH
709 0, /* src_mask */
710 0xffff, /* dst_mask */
b34976b6 711 FALSE), /* pcrel_offset */
252b5132 712
c061c2d8 713 /* 16-bit section relative relocation. */
252b5132
RH
714 HOWTO (R_PPC_SECTOFF, /* type */
715 0, /* rightshift */
c061c2d8
AM
716 1, /* size (0 = byte, 1 = short, 2 = long) */
717 16, /* bitsize */
b34976b6 718 FALSE, /* pc_relative */
252b5132 719 0, /* bitpos */
86c95733 720 complain_overflow_signed, /* complain_on_overflow */
3ce51288 721 ppc_elf_unhandled_reloc, /* special_function */
252b5132 722 "R_PPC_SECTOFF", /* name */
b34976b6 723 FALSE, /* partial_inplace */
252b5132 724 0, /* src_mask */
c061c2d8 725 0xffff, /* dst_mask */
b34976b6 726 FALSE), /* pcrel_offset */
252b5132 727
c3668558 728 /* 16-bit lower half section relative relocation. */
252b5132
RH
729 HOWTO (R_PPC_SECTOFF_LO, /* type */
730 0, /* rightshift */
731 1, /* size (0 = byte, 1 = short, 2 = long) */
732 16, /* bitsize */
b34976b6 733 FALSE, /* pc_relative */
252b5132
RH
734 0, /* bitpos */
735 complain_overflow_dont, /* complain_on_overflow */
3ce51288 736 ppc_elf_unhandled_reloc, /* special_function */
252b5132 737 "R_PPC_SECTOFF_LO", /* name */
b34976b6 738 FALSE, /* partial_inplace */
252b5132
RH
739 0, /* src_mask */
740 0xffff, /* dst_mask */
b34976b6 741 FALSE), /* pcrel_offset */
252b5132 742
c3668558 743 /* 16-bit upper half section relative relocation. */
252b5132
RH
744 HOWTO (R_PPC_SECTOFF_HI, /* type */
745 16, /* rightshift */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
747 16, /* bitsize */
b34976b6 748 FALSE, /* pc_relative */
252b5132 749 0, /* bitpos */
86c95733 750 complain_overflow_dont, /* complain_on_overflow */
3ce51288 751 ppc_elf_unhandled_reloc, /* special_function */
252b5132 752 "R_PPC_SECTOFF_HI", /* name */
b34976b6 753 FALSE, /* partial_inplace */
252b5132
RH
754 0, /* src_mask */
755 0xffff, /* dst_mask */
b34976b6 756 FALSE), /* pcrel_offset */
252b5132 757
c3668558 758 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
759 HOWTO (R_PPC_SECTOFF_HA, /* type */
760 16, /* rightshift */
761 1, /* size (0 = byte, 1 = short, 2 = long) */
762 16, /* bitsize */
b34976b6 763 FALSE, /* pc_relative */
252b5132 764 0, /* bitpos */
86c95733 765 complain_overflow_dont, /* complain_on_overflow */
3ce51288 766 ppc_elf_unhandled_reloc, /* special_function */
252b5132 767 "R_PPC_SECTOFF_HA", /* name */
b34976b6 768 FALSE, /* partial_inplace */
252b5132
RH
769 0, /* src_mask */
770 0xffff, /* dst_mask */
b34976b6 771 FALSE), /* pcrel_offset */
252b5132 772
727fc41e 773 /* Marker relocs for TLS. */
7619e7c7 774 HOWTO (R_PPC_TLS,
252b5132
RH
775 0, /* rightshift */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
777 32, /* bitsize */
b34976b6 778 FALSE, /* pc_relative */
252b5132 779 0, /* bitpos */
7619e7c7 780 complain_overflow_dont, /* complain_on_overflow */
252b5132 781 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
782 "R_PPC_TLS", /* name */
783 FALSE, /* partial_inplace */
784 0, /* src_mask */
785 0, /* dst_mask */
786 FALSE), /* pcrel_offset */
787
727fc41e
AM
788 HOWTO (R_PPC_TLSGD,
789 0, /* rightshift */
790 2, /* size (0 = byte, 1 = short, 2 = long) */
791 32, /* bitsize */
792 FALSE, /* pc_relative */
793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC_TLSGD", /* name */
797 FALSE, /* partial_inplace */
798 0, /* src_mask */
799 0, /* dst_mask */
800 FALSE), /* pcrel_offset */
801
802 HOWTO (R_PPC_TLSLD,
803 0, /* rightshift */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
805 32, /* bitsize */
806 FALSE, /* pc_relative */
807 0, /* bitpos */
808 complain_overflow_dont, /* complain_on_overflow */
809 bfd_elf_generic_reloc, /* special_function */
810 "R_PPC_TLSLD", /* name */
811 FALSE, /* partial_inplace */
812 0, /* src_mask */
813 0, /* dst_mask */
814 FALSE), /* pcrel_offset */
815
7619e7c7
AM
816 /* Computes the load module index of the load module that contains the
817 definition of its TLS sym. */
818 HOWTO (R_PPC_DTPMOD32,
819 0, /* rightshift */
820 2, /* size (0 = byte, 1 = short, 2 = long) */
821 32, /* bitsize */
822 FALSE, /* pc_relative */
823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
825 ppc_elf_unhandled_reloc, /* special_function */
826 "R_PPC_DTPMOD32", /* name */
b34976b6 827 FALSE, /* partial_inplace */
252b5132
RH
828 0, /* src_mask */
829 0xffffffff, /* dst_mask */
b34976b6 830 FALSE), /* pcrel_offset */
252b5132 831
7619e7c7
AM
832 /* Computes a dtv-relative displacement, the difference between the value
833 of sym+add and the base address of the thread-local storage block that
834 contains the definition of sym, minus 0x8000. */
835 HOWTO (R_PPC_DTPREL32,
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 32, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_dont, /* complain_on_overflow */
842 ppc_elf_unhandled_reloc, /* special_function */
843 "R_PPC_DTPREL32", /* name */
844 FALSE, /* partial_inplace */
845 0, /* src_mask */
846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848
849 /* A 16 bit dtprel reloc. */
850 HOWTO (R_PPC_DTPREL16,
252b5132
RH
851 0, /* rightshift */
852 1, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
b34976b6 854 FALSE, /* pc_relative */
252b5132 855 0, /* bitpos */
7619e7c7
AM
856 complain_overflow_signed, /* complain_on_overflow */
857 ppc_elf_unhandled_reloc, /* special_function */
858 "R_PPC_DTPREL16", /* name */
b34976b6 859 FALSE, /* partial_inplace */
252b5132
RH
860 0, /* src_mask */
861 0xffff, /* dst_mask */
b34976b6 862 FALSE), /* pcrel_offset */
252b5132 863
7619e7c7
AM
864 /* Like DTPREL16, but no overflow. */
865 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
866 0, /* rightshift */
867 1, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
b34976b6 869 FALSE, /* pc_relative */
252b5132 870 0, /* bitpos */
7619e7c7
AM
871 complain_overflow_dont, /* complain_on_overflow */
872 ppc_elf_unhandled_reloc, /* special_function */
873 "R_PPC_DTPREL16_LO", /* name */
b34976b6 874 FALSE, /* partial_inplace */
252b5132
RH
875 0, /* src_mask */
876 0xffff, /* dst_mask */
b34976b6 877 FALSE), /* pcrel_offset */
252b5132 878
7619e7c7
AM
879 /* Like DTPREL16_LO, but next higher group of 16 bits. */
880 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
881 16, /* rightshift */
882 1, /* size (0 = byte, 1 = short, 2 = long) */
883 16, /* bitsize */
b34976b6 884 FALSE, /* pc_relative */
252b5132
RH
885 0, /* bitpos */
886 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
887 ppc_elf_unhandled_reloc, /* special_function */
888 "R_PPC_DTPREL16_HI", /* name */
b34976b6 889 FALSE, /* partial_inplace */
252b5132
RH
890 0, /* src_mask */
891 0xffff, /* dst_mask */
b34976b6 892 FALSE), /* pcrel_offset */
252b5132 893
7619e7c7
AM
894 /* Like DTPREL16_HI, but adjust for low 16 bits. */
895 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
896 16, /* rightshift */
897 1, /* size (0 = byte, 1 = short, 2 = long) */
898 16, /* bitsize */
b34976b6 899 FALSE, /* pc_relative */
252b5132
RH
900 0, /* bitpos */
901 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
902 ppc_elf_unhandled_reloc, /* special_function */
903 "R_PPC_DTPREL16_HA", /* name */
b34976b6 904 FALSE, /* partial_inplace */
252b5132
RH
905 0, /* src_mask */
906 0xffff, /* dst_mask */
b34976b6 907 FALSE), /* pcrel_offset */
252b5132 908
7619e7c7
AM
909 /* Computes a tp-relative displacement, the difference between the value of
910 sym+add and the value of the thread pointer (r13). */
911 HOWTO (R_PPC_TPREL32,
912 0, /* rightshift */
913 2, /* size (0 = byte, 1 = short, 2 = long) */
914 32, /* bitsize */
915 FALSE, /* pc_relative */
916 0, /* bitpos */
917 complain_overflow_dont, /* complain_on_overflow */
918 ppc_elf_unhandled_reloc, /* special_function */
919 "R_PPC_TPREL32", /* name */
920 FALSE, /* partial_inplace */
921 0, /* src_mask */
922 0xffffffff, /* dst_mask */
923 FALSE), /* pcrel_offset */
924
925 /* A 16 bit tprel reloc. */
926 HOWTO (R_PPC_TPREL16,
252b5132
RH
927 0, /* rightshift */
928 1, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
b34976b6 930 FALSE, /* pc_relative */
252b5132 931 0, /* bitpos */
7619e7c7
AM
932 complain_overflow_signed, /* complain_on_overflow */
933 ppc_elf_unhandled_reloc, /* special_function */
934 "R_PPC_TPREL16", /* name */
b34976b6 935 FALSE, /* partial_inplace */
252b5132
RH
936 0, /* src_mask */
937 0xffff, /* dst_mask */
b34976b6 938 FALSE), /* pcrel_offset */
252b5132 939
7619e7c7
AM
940 /* Like TPREL16, but no overflow. */
941 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
942 0, /* rightshift */
943 1, /* size (0 = byte, 1 = short, 2 = long) */
944 16, /* bitsize */
b34976b6 945 FALSE, /* pc_relative */
252b5132 946 0, /* bitpos */
7619e7c7
AM
947 complain_overflow_dont, /* complain_on_overflow */
948 ppc_elf_unhandled_reloc, /* special_function */
949 "R_PPC_TPREL16_LO", /* name */
b34976b6 950 FALSE, /* partial_inplace */
252b5132
RH
951 0, /* src_mask */
952 0xffff, /* dst_mask */
b34976b6 953 FALSE), /* pcrel_offset */
252b5132 954
7619e7c7
AM
955 /* Like TPREL16_LO, but next higher group of 16 bits. */
956 HOWTO (R_PPC_TPREL16_HI,
957 16, /* rightshift */
958 1, /* size (0 = byte, 1 = short, 2 = long) */
959 16, /* bitsize */
960 FALSE, /* pc_relative */
961 0, /* bitpos */
962 complain_overflow_dont, /* complain_on_overflow */
963 ppc_elf_unhandled_reloc, /* special_function */
964 "R_PPC_TPREL16_HI", /* name */
965 FALSE, /* partial_inplace */
966 0, /* src_mask */
967 0xffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
969
970 /* Like TPREL16_HI, but adjust for low 16 bits. */
971 HOWTO (R_PPC_TPREL16_HA,
972 16, /* rightshift */
973 1, /* size (0 = byte, 1 = short, 2 = long) */
974 16, /* bitsize */
975 FALSE, /* pc_relative */
976 0, /* bitpos */
977 complain_overflow_dont, /* complain_on_overflow */
978 ppc_elf_unhandled_reloc, /* special_function */
979 "R_PPC_TPREL16_HA", /* name */
980 FALSE, /* partial_inplace */
981 0, /* src_mask */
982 0xffff, /* dst_mask */
983 FALSE), /* pcrel_offset */
984
985 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
986 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
987 to the first entry. */
988 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
989 0, /* rightshift */
990 1, /* size (0 = byte, 1 = short, 2 = long) */
991 16, /* bitsize */
b34976b6 992 FALSE, /* pc_relative */
252b5132
RH
993 0, /* bitpos */
994 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
995 ppc_elf_unhandled_reloc, /* special_function */
996 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 997 FALSE, /* partial_inplace */
252b5132
RH
998 0, /* src_mask */
999 0xffff, /* dst_mask */
b34976b6 1000 FALSE), /* pcrel_offset */
252b5132 1001
7619e7c7
AM
1002 /* Like GOT_TLSGD16, but no overflow. */
1003 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1004 0, /* rightshift */
7619e7c7 1005 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1006 16, /* bitsize */
b34976b6 1007 FALSE, /* pc_relative */
252b5132 1008 0, /* bitpos */
7619e7c7
AM
1009 complain_overflow_dont, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc, /* special_function */
1011 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1012 FALSE, /* partial_inplace */
252b5132
RH
1013 0, /* src_mask */
1014 0xffff, /* dst_mask */
b34976b6 1015 FALSE), /* pcrel_offset */
252b5132 1016
7619e7c7
AM
1017 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1018 HOWTO (R_PPC_GOT_TLSGD16_HI,
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 0, /* bitpos */
1024 complain_overflow_dont, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc, /* special_function */
1026 "R_PPC_GOT_TLSGD16_HI", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0xffff, /* dst_mask */
1030 FALSE), /* pcrel_offset */
252b5132 1031
7619e7c7
AM
1032 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1033 HOWTO (R_PPC_GOT_TLSGD16_HA,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1036 16, /* bitsize */
1037 FALSE, /* pc_relative */
1038 0, /* bitpos */
1039 complain_overflow_dont, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc, /* special_function */
1041 "R_PPC_GOT_TLSGD16_HA", /* name */
1042 FALSE, /* partial_inplace */
1043 0, /* src_mask */
1044 0xffff, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1046
1047 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1048 with values (sym+add)@dtpmod and zero, and computes the offset to the
1049 first entry. */
1050 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1051 0, /* rightshift */
1052 1, /* size (0 = byte, 1 = short, 2 = long) */
1053 16, /* bitsize */
7619e7c7 1054 FALSE, /* pc_relative */
252b5132
RH
1055 0, /* bitpos */
1056 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1057 ppc_elf_unhandled_reloc, /* special_function */
1058 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1059 FALSE, /* partial_inplace */
252b5132
RH
1060 0, /* src_mask */
1061 0xffff, /* dst_mask */
b34976b6 1062 FALSE), /* pcrel_offset */
252b5132 1063
7619e7c7
AM
1064 /* Like GOT_TLSLD16, but no overflow. */
1065 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1066 0, /* rightshift */
7619e7c7
AM
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1068 16, /* bitsize */
b34976b6 1069 FALSE, /* pc_relative */
252b5132
RH
1070 0, /* bitpos */
1071 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1072 ppc_elf_unhandled_reloc, /* special_function */
1073 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1074 FALSE, /* partial_inplace */
252b5132 1075 0, /* src_mask */
7619e7c7 1076 0xffff, /* dst_mask */
b34976b6 1077 FALSE), /* pcrel_offset */
252b5132 1078
7619e7c7
AM
1079 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1080 HOWTO (R_PPC_GOT_TLSLD16_HI,
1081 16, /* rightshift */
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1083 16, /* bitsize */
b34976b6 1084 FALSE, /* pc_relative */
252b5132
RH
1085 0, /* bitpos */
1086 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1087 ppc_elf_unhandled_reloc, /* special_function */
1088 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1089 FALSE, /* partial_inplace */
252b5132 1090 0, /* src_mask */
7619e7c7 1091 0xffff, /* dst_mask */
b34976b6 1092 FALSE), /* pcrel_offset */
252b5132 1093
7619e7c7
AM
1094 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSLD16_HA,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc, /* special_function */
1103 "R_PPC_GOT_TLSLD16_HA", /* name */
1104 FALSE, /* partial_inplace */
1105 0, /* src_mask */
1106 0xffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1108
1109 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1110 the offset to the entry. */
1111 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1112 0, /* rightshift */
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 16, /* bitsize */
b34976b6 1115 FALSE, /* pc_relative */
252b5132
RH
1116 0, /* bitpos */
1117 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1118 ppc_elf_unhandled_reloc, /* special_function */
1119 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1120 FALSE, /* partial_inplace */
252b5132
RH
1121 0, /* src_mask */
1122 0xffff, /* dst_mask */
b34976b6 1123 FALSE), /* pcrel_offset */
252b5132 1124
7619e7c7
AM
1125 /* Like GOT_DTPREL16, but no overflow. */
1126 HOWTO (R_PPC_GOT_DTPREL16_LO,
1127 0, /* rightshift */
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 ppc_elf_unhandled_reloc, /* special_function */
1134 "R_PPC_GOT_DTPREL16_LO", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
7619e7c7
AM
1140 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1141 HOWTO (R_PPC_GOT_DTPREL16_HI,
1142 16, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1144 16, /* bitsize */
1145 FALSE, /* pc_relative */
1146 0, /* bitpos */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 ppc_elf_unhandled_reloc, /* special_function */
1149 "R_PPC_GOT_DTPREL16_HI", /* name */
1150 FALSE, /* partial_inplace */
1151 0, /* src_mask */
1152 0xffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
252b5132 1154
7619e7c7
AM
1155 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1156 HOWTO (R_PPC_GOT_DTPREL16_HA,
1157 16, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1159 16, /* bitsize */
1160 FALSE, /* pc_relative */
1161 0, /* bitpos */
1162 complain_overflow_dont, /* complain_on_overflow */
1163 ppc_elf_unhandled_reloc, /* special_function */
1164 "R_PPC_GOT_DTPREL16_HA", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
c3668558 1169
7619e7c7
AM
1170 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1171 offset to the entry. */
1172 HOWTO (R_PPC_GOT_TPREL16,
1173 0, /* rightshift */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1175 16, /* bitsize */
1176 FALSE, /* pc_relative */
1177 0, /* bitpos */
1178 complain_overflow_signed, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc, /* special_function */
1180 "R_PPC_GOT_TPREL16", /* name */
1181 FALSE, /* partial_inplace */
1182 0, /* src_mask */
1183 0xffff, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1185
1186 /* Like GOT_TPREL16, but no overflow. */
1187 HOWTO (R_PPC_GOT_TPREL16_LO,
1188 0, /* rightshift */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 ppc_elf_unhandled_reloc, /* special_function */
1195 "R_PPC_GOT_TPREL16_LO", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1202 HOWTO (R_PPC_GOT_TPREL16_HI,
1203 16, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1205 16, /* bitsize */
1206 FALSE, /* pc_relative */
1207 0, /* bitpos */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 ppc_elf_unhandled_reloc, /* special_function */
1210 "R_PPC_GOT_TPREL16_HI", /* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0xffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1217 HOWTO (R_PPC_GOT_TPREL16_HA,
1218 16, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1220 16, /* bitsize */
1221 FALSE, /* pc_relative */
1222 0, /* bitpos */
1223 complain_overflow_dont, /* complain_on_overflow */
1224 ppc_elf_unhandled_reloc, /* special_function */
1225 "R_PPC_GOT_TPREL16_HA", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0xffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* The remaining relocs are from the Embedded ELF ABI, and are not
1232 in the SVR4 ELF ABI. */
1233
1234 /* 32 bit value resulting from the addend minus the symbol. */
1235 HOWTO (R_PPC_EMB_NADDR32, /* type */
1236 0, /* rightshift */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 32, /* bitsize */
1239 FALSE, /* pc_relative */
1240 0, /* bitpos */
86c95733 1241 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1242 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1243 "R_PPC_EMB_NADDR32", /* name */
1244 FALSE, /* partial_inplace */
1245 0, /* src_mask */
1246 0xffffffff, /* dst_mask */
1247 FALSE), /* pcrel_offset */
1248
1249 /* 16 bit value resulting from the addend minus the symbol. */
1250 HOWTO (R_PPC_EMB_NADDR16, /* type */
1251 0, /* rightshift */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1253 16, /* bitsize */
1254 FALSE, /* pc_relative */
1255 0, /* bitpos */
86c95733 1256 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1257 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1258 "R_PPC_EMB_NADDR16", /* name */
1259 FALSE, /* partial_inplace */
1260 0, /* src_mask */
1261 0xffff, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1263
1264 /* 16 bit value resulting from the addend minus the symbol. */
1265 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1266 0, /* rightshift */
1267 1, /* size (0 = byte, 1 = short, 2 = long) */
1268 16, /* bitsize */
1269 FALSE, /* pc_relative */
1270 0, /* bitpos */
1271 complain_overflow_dont,/* complain_on_overflow */
3ce51288 1272 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1273 "R_PPC_EMB_ADDR16_LO", /* name */
1274 FALSE, /* partial_inplace */
1275 0, /* src_mask */
1276 0xffff, /* dst_mask */
1277 FALSE), /* pcrel_offset */
1278
1279 /* The high order 16 bits of the addend minus the symbol. */
1280 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1281 16, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 16, /* bitsize */
1284 FALSE, /* pc_relative */
1285 0, /* bitpos */
1286 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1287 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1288 "R_PPC_EMB_NADDR16_HI", /* name */
1289 FALSE, /* partial_inplace */
1290 0, /* src_mask */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1293
1294 /* The high order 16 bits of the result of the addend minus the address,
1295 plus 1 if the contents of the low 16 bits, treated as a signed number,
1296 is negative. */
1297 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1298 16, /* rightshift */
1299 1, /* size (0 = byte, 1 = short, 2 = long) */
1300 16, /* bitsize */
1301 FALSE, /* pc_relative */
1302 0, /* bitpos */
1303 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1304 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1305 "R_PPC_EMB_NADDR16_HA", /* name */
1306 FALSE, /* partial_inplace */
1307 0, /* src_mask */
1308 0xffff, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1310
1311 /* 16 bit value resulting from allocating a 4 byte word to hold an
1312 address in the .sdata section, and returning the offset from
1313 _SDA_BASE_ for that relocation. */
1314 HOWTO (R_PPC_EMB_SDAI16, /* type */
1315 0, /* rightshift */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 16, /* bitsize */
1318 FALSE, /* pc_relative */
1319 0, /* bitpos */
bd6c6e2b 1320 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1321 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1322 "R_PPC_EMB_SDAI16", /* name */
1323 FALSE, /* partial_inplace */
1324 0, /* src_mask */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* 16 bit value resulting from allocating a 4 byte word to hold an
1329 address in the .sdata2 section, and returning the offset from
1330 _SDA2_BASE_ for that relocation. */
1331 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1332 0, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
bd6c6e2b 1337 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1338 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1339 "R_PPC_EMB_SDA2I16", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1346 small data items. */
1347 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1348 0, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1354 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1355 "R_PPC_EMB_SDA2REL", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1362 signed offset from the appropriate base, and filling in the register
1363 field with the appropriate register (0, 2, or 13). */
1364 HOWTO (R_PPC_EMB_SDA21, /* type */
1365 0, /* rightshift */
1366 2, /* size (0 = byte, 1 = short, 2 = long) */
1367 16, /* bitsize */
1368 FALSE, /* pc_relative */
1369 0, /* bitpos */
1370 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1371 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1372 "R_PPC_EMB_SDA21", /* name */
1373 FALSE, /* partial_inplace */
1374 0, /* src_mask */
1375 0xffff, /* dst_mask */
1376 FALSE), /* pcrel_offset */
1377
1378 /* Relocation not handled: R_PPC_EMB_MRKREF */
1379 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1380 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1382 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1383 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1384
1385 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1386 in the 16 bit signed offset from the appropriate base, and filling in the
1387 register field with the appropriate register (0, 2, or 13). */
1388 HOWTO (R_PPC_EMB_RELSDA, /* type */
1389 0, /* rightshift */
1390 1, /* size (0 = byte, 1 = short, 2 = long) */
1391 16, /* bitsize */
ddfd6795 1392 FALSE, /* pc_relative */
25dbc73a
AM
1393 0, /* bitpos */
1394 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1395 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1396 "R_PPC_EMB_RELSDA", /* name */
1397 FALSE, /* partial_inplace */
1398 0, /* src_mask */
1399 0xffff, /* dst_mask */
1400 FALSE), /* pcrel_offset */
1401
b9c361e0
JL
1402 /* A relative 8 bit branch. */
1403 HOWTO (R_PPC_VLE_REL8, /* type */
1404 1, /* rightshift */
1405 1, /* size (0 = byte, 1 = short, 2 = long) */
1406 8, /* bitsize */
1407 TRUE, /* pc_relative */
1408 0, /* bitpos */
1409 complain_overflow_signed, /* complain_on_overflow */
1410 bfd_elf_generic_reloc, /* special_function */
1411 "R_PPC_VLE_REL8", /* name */
1412 FALSE, /* partial_inplace */
1413 0, /* src_mask */
1414 0xff, /* dst_mask */
1415 TRUE), /* pcrel_offset */
68ffbac6 1416
b9c361e0
JL
1417 /* A relative 15 bit branch. */
1418 HOWTO (R_PPC_VLE_REL15, /* type */
1419 1, /* rightshift */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 15, /* bitsize */
1422 TRUE, /* pc_relative */
1423 1, /* bitpos */
1424 complain_overflow_signed, /* complain_on_overflow */
1425 bfd_elf_generic_reloc, /* special_function */
1426 "R_PPC_VLE_REL15", /* name */
1427 FALSE, /* partial_inplace */
1428 0, /* src_mask */
dfdaec14 1429 0xfffe, /* dst_mask */
b9c361e0
JL
1430 TRUE), /* pcrel_offset */
1431
68ffbac6 1432 /* A relative 24 bit branch. */
b9c361e0
JL
1433 HOWTO (R_PPC_VLE_REL24, /* type */
1434 1, /* rightshift */
1435 2, /* size (0 = byte, 1 = short, 2 = long) */
1436 24, /* bitsize */
1437 TRUE, /* pc_relative */
1438 1, /* bitpos */
1439 complain_overflow_signed, /* complain_on_overflow */
1440 bfd_elf_generic_reloc, /* special_function */
1441 "R_PPC_VLE_REL24", /* name */
1442 FALSE, /* partial_inplace */
1443 0, /* src_mask */
1444 0x1fffffe, /* dst_mask */
1445 TRUE), /* pcrel_offset */
1446
1447 /* The 16 LSBS in split16a format. */
1448 HOWTO (R_PPC_VLE_LO16A, /* type */
1449 0, /* rightshift */
1450 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1451 16, /* bitsize */
bdaacd3a 1452 FALSE, /* pc_relative */
b9c361e0 1453 0, /* bitpos */
86c95733 1454 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1455 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1456 "R_PPC_VLE_LO16A", /* name */
1457 FALSE, /* partial_inplace */
1458 0, /* src_mask */
08dc996f 1459 0x1f07ff, /* dst_mask */
b9c361e0
JL
1460 FALSE), /* pcrel_offset */
1461
1462 /* The 16 LSBS in split16d format. */
1463 HOWTO (R_PPC_VLE_LO16D, /* type */
1464 0, /* rightshift */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1466 16, /* bitsize */
b9c361e0
JL
1467 FALSE, /* pc_relative */
1468 0, /* bitpos */
86c95733 1469 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1470 ppc_elf_unhandled_reloc, /* special_function */
1471 "R_PPC_VLE_LO16D", /* name */
b9c361e0
JL
1472 FALSE, /* partial_inplace */
1473 0, /* src_mask */
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
e054468f
AM
1659 HOWTO (R_PPC_IRELATIVE, /* type */
1660 0, /* rightshift */
1661 2, /* size (0 = byte, 1 = short, 2 = long) */
1662 32, /* bitsize */
1663 FALSE, /* pc_relative */
1664 0, /* bitpos */
86c95733 1665 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1666 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1667 "R_PPC_IRELATIVE", /* name */
1668 FALSE, /* partial_inplace */
1669 0, /* src_mask */
1670 0xffffffff, /* dst_mask */
1671 FALSE), /* pcrel_offset */
1672
d7128ce4
AM
1673 /* A 16 bit relative relocation. */
1674 HOWTO (R_PPC_REL16, /* type */
1675 0, /* rightshift */
1676 1, /* size (0 = byte, 1 = short, 2 = long) */
1677 16, /* bitsize */
1678 TRUE, /* pc_relative */
1679 0, /* bitpos */
86c95733 1680 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1681 bfd_elf_generic_reloc, /* special_function */
1682 "R_PPC_REL16", /* name */
1683 FALSE, /* partial_inplace */
1684 0, /* src_mask */
1685 0xffff, /* dst_mask */
1686 TRUE), /* pcrel_offset */
1687
1688 /* A 16 bit relative relocation without overflow. */
1689 HOWTO (R_PPC_REL16_LO, /* type */
1690 0, /* rightshift */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1692 16, /* bitsize */
1693 TRUE, /* pc_relative */
1694 0, /* bitpos */
1695 complain_overflow_dont,/* complain_on_overflow */
1696 bfd_elf_generic_reloc, /* special_function */
1697 "R_PPC_REL16_LO", /* name */
1698 FALSE, /* partial_inplace */
1699 0, /* src_mask */
1700 0xffff, /* dst_mask */
1701 TRUE), /* pcrel_offset */
1702
1703 /* The high order 16 bits of a relative address. */
1704 HOWTO (R_PPC_REL16_HI, /* type */
1705 16, /* rightshift */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 16, /* bitsize */
1708 TRUE, /* pc_relative */
1709 0, /* bitpos */
1710 complain_overflow_dont, /* complain_on_overflow */
1711 bfd_elf_generic_reloc, /* special_function */
1712 "R_PPC_REL16_HI", /* name */
1713 FALSE, /* partial_inplace */
1714 0, /* src_mask */
1715 0xffff, /* dst_mask */
1716 TRUE), /* pcrel_offset */
1717
1718 /* The high order 16 bits of a relative address, plus 1 if the contents of
1719 the low 16 bits, treated as a signed number, is negative. */
1720 HOWTO (R_PPC_REL16_HA, /* type */
1721 16, /* rightshift */
1722 1, /* size (0 = byte, 1 = short, 2 = long) */
1723 16, /* bitsize */
1724 TRUE, /* pc_relative */
1725 0, /* bitpos */
1726 complain_overflow_dont, /* complain_on_overflow */
1727 ppc_elf_addr16_ha_reloc, /* special_function */
1728 "R_PPC_REL16_HA", /* name */
1729 FALSE, /* partial_inplace */
1730 0, /* src_mask */
1731 0xffff, /* dst_mask */
1732 TRUE), /* pcrel_offset */
1733
a680de9a
PB
1734 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1735 HOWTO (R_PPC_REL16DX_HA, /* type */
1736 16, /* rightshift */
1737 2, /* size (0 = byte, 1 = short, 2 = long) */
1738 16, /* bitsize */
1739 TRUE, /* pc_relative */
1740 0, /* bitpos */
1741 complain_overflow_signed, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc, /* special_function */
1743 "R_PPC_REL16DX_HA", /* name */
1744 FALSE, /* partial_inplace */
1745 0, /* src_mask */
1746 0x1fffc1, /* dst_mask */
1747 TRUE), /* pcrel_offset */
1748
7ba71655
AM
1749 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1750 HOWTO (R_PPC_16DX_HA, /* type */
1751 16, /* rightshift */
1752 2, /* size (0 = byte, 1 = short, 2 = long) */
1753 16, /* bitsize */
1754 FALSE, /* pc_relative */
1755 0, /* bitpos */
1756 complain_overflow_signed, /* complain_on_overflow */
1757 ppc_elf_addr16_ha_reloc, /* special_function */
1758 "R_PPC_16DX_HA", /* name */
1759 FALSE, /* partial_inplace */
1760 0, /* src_mask */
1761 0x1fffc1, /* dst_mask */
1762 FALSE), /* pcrel_offset */
1763
25dbc73a
AM
1764 /* GNU extension to record C++ vtable hierarchy. */
1765 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1766 0, /* rightshift */
1767 0, /* size (0 = byte, 1 = short, 2 = long) */
1768 0, /* bitsize */
1769 FALSE, /* pc_relative */
1770 0, /* bitpos */
1771 complain_overflow_dont, /* complain_on_overflow */
1772 NULL, /* special_function */
1773 "R_PPC_GNU_VTINHERIT", /* name */
1774 FALSE, /* partial_inplace */
1775 0, /* src_mask */
1776 0, /* dst_mask */
1777 FALSE), /* pcrel_offset */
1778
1779 /* GNU extension to record C++ vtable member usage. */
1780 HOWTO (R_PPC_GNU_VTENTRY, /* 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_VTENTRY", /* name */
7619e7c7
AM
1789 FALSE, /* partial_inplace */
1790 0, /* src_mask */
25dbc73a 1791 0, /* dst_mask */
7619e7c7
AM
1792 FALSE), /* pcrel_offset */
1793
25dbc73a
AM
1794 /* Phony reloc to handle AIX style TOC entries. */
1795 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1796 0, /* rightshift */
1797 1, /* size (0 = byte, 1 = short, 2 = long) */
1798 16, /* bitsize */
1799 FALSE, /* pc_relative */
1800 0, /* bitpos */
25dbc73a 1801 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1802 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1803 "R_PPC_TOC16", /* name */
7619e7c7
AM
1804 FALSE, /* partial_inplace */
1805 0, /* src_mask */
1806 0xffff, /* dst_mask */
1807 FALSE), /* pcrel_offset */
25dbc73a 1808};
70a38d42
SDJ
1809
1810/* External 32-bit PPC structure for PRPSINFO. This structure is
1811 ABI-defined, thus we choose to use char arrays here in order to
1812 avoid dealing with different types in different architectures.
1813
1814 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1815 most non-PPC architectures use `short int'.
1816
1817 This structure will ultimately be written in the corefile's note
1818 section, as the PRPSINFO. */
1819
1820struct elf_external_ppc_linux_prpsinfo32
1821 {
1822 char pr_state; /* Numeric process state. */
1823 char pr_sname; /* Char for pr_state. */
1824 char pr_zomb; /* Zombie. */
1825 char pr_nice; /* Nice val. */
1826 char pr_flag[4]; /* Flags. */
1827 char pr_uid[4];
1828 char pr_gid[4];
1829 char pr_pid[4];
1830 char pr_ppid[4];
1831 char pr_pgrp[4];
1832 char pr_sid[4];
1833 char pr_fname[16]; /* Filename of executable. */
1834 char pr_psargs[80]; /* Initial part of arg list. */
1835 };
1836
aeb70569
AM
1837/* Helper function to copy an elf_internal_linux_prpsinfo in host
1838 endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */
70a38d42 1839
aeb70569
AM
1840static inline void
1841swap_ppc_linux_prpsinfo32_out (bfd *obfd,
1842 const struct elf_internal_linux_prpsinfo *from,
1843 struct elf_external_ppc_linux_prpsinfo32 *to)
1844{
1845 bfd_put_8 (obfd, from->pr_state, &to->pr_state);
1846 bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
1847 bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
1848 bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
1849 bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
1850 bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
1851 bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
1852 bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
1853 bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
1854 bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
1855 bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
1856 strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
1857 strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
1858}
25dbc73a
AM
1859\f
1860/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1861
1862static void
1863ppc_elf_howto_init (void)
1864{
1865 unsigned int i, type;
1866
1867 for (i = 0;
1868 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1869 i++)
1870 {
1871 type = ppc_elf_howto_raw[i].type;
1872 if (type >= (sizeof (ppc_elf_howto_table)
1873 / sizeof (ppc_elf_howto_table[0])))
1874 abort ();
1875 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1876 }
1877}
1878
1879static reloc_howto_type *
1880ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1881 bfd_reloc_code_real_type code)
1882{
1883 enum elf_ppc_reloc_type r;
1884
1885 /* Initialize howto table if not already done. */
1886 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1887 ppc_elf_howto_init ();
1888
1889 switch (code)
1890 {
1891 default:
1892 return NULL;
1893
1894 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1895 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1896 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1897 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1898 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1899 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1900 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1901 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1902 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1903 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1904 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1905 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1906 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1907 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1908 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1909 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1910 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1911 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1912 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1913 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1914 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1915 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1916 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1917 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1918 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1919 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1920 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1921 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1922 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1923 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1924 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1925 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1926 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1927 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1928 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1929 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1930 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1931 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1932 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1933 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1934 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1935 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1936 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1937 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1938 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1939 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1940 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1941 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1942 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1943 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1944 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1945 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1946 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1947 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1948 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1949 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1950 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1951 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1952 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1953 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1954 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1955 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1956 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1957 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1958 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1959 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1960 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1961 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1962 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1963 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1964 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1965 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1966 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1967 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1968 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1969 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1970 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1971 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1972 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1973 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1974 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1975 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1976 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1977 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1978 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1979 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1980 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1981 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1982 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1983 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1984 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1985 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1986 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1987 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1988 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1989 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1990 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1991 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1992 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1993 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1994 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1995 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1996 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1997 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1998 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1999 r = R_PPC_VLE_SDAREL_LO16A;
2000 break;
2001 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
2002 r = R_PPC_VLE_SDAREL_LO16D;
2003 break;
2004 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
2005 r = R_PPC_VLE_SDAREL_HI16A;
2006 break;
2007 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
2008 r = R_PPC_VLE_SDAREL_HI16D;
2009 break;
2010 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
2011 r = R_PPC_VLE_SDAREL_HA16A;
2012 break;
2013 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
2014 r = R_PPC_VLE_SDAREL_HA16D;
2015 break;
d7128ce4
AM
2016 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2017 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2018 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2019 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
7ba71655 2020 case BFD_RELOC_PPC_16DX_HA: r = R_PPC_16DX_HA; break;
a680de9a 2021 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
2022 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2023 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2024 }
2025
2026 return ppc_elf_howto_table[r];
2027};
2028
157090f7
AM
2029static reloc_howto_type *
2030ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2031 const char *r_name)
2032{
2033 unsigned int i;
2034
2035 for (i = 0;
2036 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2037 i++)
2038 if (ppc_elf_howto_raw[i].name != NULL
2039 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2040 return &ppc_elf_howto_raw[i];
2041
2042 return NULL;
2043}
2044
25dbc73a
AM
2045/* Set the howto pointer for a PowerPC ELF reloc. */
2046
2047static void
4aef7643 2048ppc_elf_info_to_howto (bfd *abfd,
25dbc73a
AM
2049 arelent *cache_ptr,
2050 Elf_Internal_Rela *dst)
2051{
cd21f5da
NC
2052 unsigned int r_type;
2053
25dbc73a
AM
2054 /* Initialize howto table if not already done. */
2055 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2056 ppc_elf_howto_init ();
2057
cd21f5da
NC
2058 r_type = ELF32_R_TYPE (dst->r_info);
2059 if (r_type >= R_PPC_max)
2060 {
695344c0 2061 /* xgettext:c-format */
4eca0228
AM
2062 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2063 abfd, r_type);
cd21f5da
NC
2064 bfd_set_error (bfd_error_bad_value);
2065 r_type = R_PPC_NONE;
2066 }
2067 cache_ptr->howto = ppc_elf_howto_table[r_type];
375de94a
AM
2068
2069 /* Just because the above assert didn't trigger doesn't mean that
2070 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2071 if (!cache_ptr->howto)
2072 {
695344c0 2073 /* xgettext:c-format */
4eca0228
AM
2074 _bfd_error_handler (_("%B: invalid relocation type %d"),
2075 abfd, r_type);
375de94a
AM
2076 bfd_set_error (bfd_error_bad_value);
2077
2078 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2079 }
25dbc73a
AM
2080}
2081
d7128ce4 2082/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2083
2084static bfd_reloc_status_type
4aef7643 2085ppc_elf_addr16_ha_reloc (bfd *abfd,
25dbc73a
AM
2086 arelent *reloc_entry,
2087 asymbol *symbol,
4aef7643 2088 void *data,
25dbc73a
AM
2089 asection *input_section,
2090 bfd *output_bfd,
2091 char **error_message ATTRIBUTE_UNUSED)
2092{
a680de9a
PB
2093 enum elf_ppc_reloc_type r_type;
2094 long insn;
2095 bfd_size_type octets;
2096 bfd_vma value;
25dbc73a
AM
2097
2098 if (output_bfd != NULL)
2099 {
2100 reloc_entry->address += input_section->output_offset;
2101 return bfd_reloc_ok;
2102 }
2103
a680de9a
PB
2104 reloc_entry->addend += 0x8000;
2105 r_type = reloc_entry->howto->type;
2106 if (r_type != R_PPC_REL16DX_HA)
2107 return bfd_reloc_continue;
2108
2109 value = 0;
2110 if (!bfd_is_com_section (symbol->section))
2111 value = symbol->value;
2112 value += (reloc_entry->addend
2113 + symbol->section->output_offset
2114 + symbol->section->output_section->vma);
2115 value -= (reloc_entry->address
2116 + input_section->output_offset
2117 + input_section->output_section->vma);
2118 value >>= 16;
2119
2120 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2121 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2122 insn &= ~0x1fffc1;
2123 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2124 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2125 return bfd_reloc_ok;
25dbc73a
AM
2126}
2127
2128static bfd_reloc_status_type
2129ppc_elf_unhandled_reloc (bfd *abfd,
2130 arelent *reloc_entry,
2131 asymbol *symbol,
2132 void *data,
2133 asection *input_section,
2134 bfd *output_bfd,
2135 char **error_message)
2136{
2137 /* If this is a relocatable link (output_bfd test tells us), just
2138 call the generic function. Any adjustment will be done at final
2139 link time. */
2140 if (output_bfd != NULL)
2141 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2142 input_section, output_bfd, error_message);
2143
2144 if (error_message != NULL)
2145 {
2146 static char buf[60];
2147 sprintf (buf, _("generic linker can't handle %s"),
2148 reloc_entry->howto->name);
2149 *error_message = buf;
2150 }
2151 return bfd_reloc_dangerous;
2152}
2153\f
2154/* Sections created by the linker. */
2155
2156typedef struct elf_linker_section
2157{
c9a2f333 2158 /* Pointer to the bfd section. */
25dbc73a 2159 asection *section;
c9a2f333
AM
2160 /* Section name. */
2161 const char *name;
2162 /* Associated bss section name. */
2163 const char *bss_name;
2164 /* Associated symbol name. */
2165 const char *sym_name;
046183de
AM
2166 /* Associated symbol. */
2167 struct elf_link_hash_entry *sym;
25dbc73a
AM
2168} elf_linker_section_t;
2169
2170/* Linked list of allocated pointer entries. This hangs off of the
2171 symbol lists, and provides allows us to return different pointers,
2172 based on different addend's. */
2173
2174typedef struct elf_linker_section_pointers
2175{
2176 /* next allocated pointer for this symbol */
2177 struct elf_linker_section_pointers *next;
2178 /* offset of pointer from beginning of section */
2179 bfd_vma offset;
2180 /* addend used */
2181 bfd_vma addend;
2182 /* which linker section this is */
2183 elf_linker_section_t *lsect;
25dbc73a
AM
2184} elf_linker_section_pointers_t;
2185
2186struct ppc_elf_obj_tdata
2187{
2188 struct elf_obj_tdata elf;
2189
2190 /* A mapping from local symbols to offsets into the various linker
2191 sections added. This is index by the symbol index. */
2192 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2193
2194 /* Flags used to auto-detect plt type. */
2195 unsigned int makes_plt_call : 1;
2196 unsigned int has_rel16 : 1;
25dbc73a
AM
2197};
2198
2199#define ppc_elf_tdata(bfd) \
2200 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2201
25dbc73a
AM
2202#define elf_local_ptr_offsets(bfd) \
2203 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2204
0c8d6e5c
AM
2205#define is_ppc_elf(bfd) \
2206 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2207 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2208
25dbc73a 2209/* Override the generic function because we store some extras. */
7619e7c7 2210
25dbc73a
AM
2211static bfd_boolean
2212ppc_elf_mkobject (bfd *abfd)
2213{
0ffa91dd 2214 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2215 PPC32_ELF_DATA);
25dbc73a 2216}
7619e7c7 2217
14b57c7c
AM
2218/* When defaulting arch/mach, decode apuinfo to find a better match. */
2219
2220bfd_boolean
2221_bfd_elf_ppc_set_arch (bfd *abfd)
2222{
2223 unsigned long mach = 0;
2224 asection *s;
2225 unsigned char *contents;
2226
2227 if (abfd->arch_info->bits_per_word == 32
2228 && bfd_big_endian (abfd))
2229 {
2230
2231 for (s = abfd->sections; s != NULL; s = s->next)
2232 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2233 break;
2234 if (s != NULL)
2235 mach = bfd_mach_ppc_vle;
2236 }
2237
2238 if (mach == 0)
2239 {
2240 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2241 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2242 {
2243 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2244 unsigned int i;
2245
2246 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2247 {
2248 unsigned int val = bfd_get_32 (abfd, contents + i);
2249 switch (val >> 16)
2250 {
2251 case PPC_APUINFO_PMR:
2252 case PPC_APUINFO_RFMCI:
2253 if (mach == 0)
2254 mach = bfd_mach_ppc_titan;
2255 break;
2256
2257 case PPC_APUINFO_ISEL:
2258 case PPC_APUINFO_CACHELCK:
2259 if (mach == bfd_mach_ppc_titan)
2260 mach = bfd_mach_ppc_e500mc;
2261 break;
2262
2263 case PPC_APUINFO_SPE:
2264 case PPC_APUINFO_EFS:
2265 case PPC_APUINFO_BRLOCK:
2266 if (mach != bfd_mach_ppc_vle)
2267 mach = bfd_mach_ppc_e500;
8941017b 2268 break;
14b57c7c
AM
2269
2270 case PPC_APUINFO_VLE:
2271 mach = bfd_mach_ppc_vle;
2272 break;
2273
2274 default:
2275 mach = -1ul;
2276 }
2277 }
2278 free (contents);
2279 }
2280 }
2281
2282 if (mach != 0 && mach != -1ul)
2283 {
2284 const bfd_arch_info_type *arch;
2285
2286 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2287 if (arch->mach == mach)
2288 {
2289 abfd->arch_info = arch;
2290 break;
2291 }
2292 }
2293 return TRUE;
2294}
2295
25dbc73a 2296/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2297 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2298
25dbc73a
AM
2299static bfd_boolean
2300ppc_elf_object_p (bfd *abfd)
2301{
14b57c7c
AM
2302 if (!abfd->arch_info->the_default)
2303 return TRUE;
2304
2305 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2306 {
2307 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2308
25dbc73a
AM
2309 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2310 {
2311 /* Relies on arch after 64 bit default being 32 bit default. */
2312 abfd->arch_info = abfd->arch_info->next;
2313 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2314 }
2315 }
14b57c7c 2316 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2317}
7619e7c7 2318
25dbc73a 2319/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2320
25dbc73a
AM
2321static bfd_boolean
2322ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2323{
2324 BFD_ASSERT (!elf_flags_init (abfd)
2325 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2326
25dbc73a
AM
2327 elf_elfheader (abfd)->e_flags = flags;
2328 elf_flags_init (abfd) = TRUE;
2329 return TRUE;
2330}
2331
25dbc73a 2332/* Support for core dump NOTE sections. */
deaaf2f3 2333
b34976b6 2334static bfd_boolean
25dbc73a 2335ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2336{
25dbc73a
AM
2337 int offset;
2338 unsigned int size;
252b5132 2339
25dbc73a
AM
2340 switch (note->descsz)
2341 {
2342 default:
2343 return FALSE;
252b5132 2344
25dbc73a
AM
2345 case 268: /* Linux/PPC. */
2346 /* pr_cursig */
228e534f 2347 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2348
25dbc73a 2349 /* pr_pid */
228e534f 2350 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2351
25dbc73a
AM
2352 /* pr_reg */
2353 offset = 72;
2354 size = 192;
deaaf2f3 2355
25dbc73a
AM
2356 break;
2357 }
deaaf2f3 2358
25dbc73a
AM
2359 /* Make a ".reg/999" section. */
2360 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2361 size, note->descpos + offset);
2362}
252b5132 2363
25dbc73a
AM
2364static bfd_boolean
2365ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2366{
2367 switch (note->descsz)
deaaf2f3 2368 {
25dbc73a
AM
2369 default:
2370 return FALSE;
deaaf2f3 2371
25dbc73a 2372 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2373 elf_tdata (abfd)->core->pid
bc989cdc 2374 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2375 elf_tdata (abfd)->core->program
25dbc73a 2376 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2377 elf_tdata (abfd)->core->command
25dbc73a
AM
2378 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2379 }
9abc968f 2380
25dbc73a
AM
2381 /* Note that for some reason, a spurious space is tacked
2382 onto the end of the args in some (at least one anyway)
2383 implementations, so strip it off if it exists. */
70bccea4 2384
25dbc73a 2385 {
228e534f 2386 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2387 int n = strlen (command);
70bccea4 2388
25dbc73a
AM
2389 if (0 < n && command[n - 1] == ' ')
2390 command[n - 1] = '\0';
2391 }
deaaf2f3 2392
25dbc73a
AM
2393 return TRUE;
2394}
deaaf2f3 2395
70a38d42 2396char *
aeb70569
AM
2397elfcore_write_ppc_linux_prpsinfo32
2398 (bfd *abfd,
2399 char *buf,
2400 int *bufsiz,
2401 const struct elf_internal_linux_prpsinfo *prpsinfo)
70a38d42
SDJ
2402{
2403 struct elf_external_ppc_linux_prpsinfo32 data;
2404
aeb70569 2405 swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data);
70a38d42
SDJ
2406 return elfcore_write_note (abfd, buf, bufsiz,
2407 "CORE", NT_PRPSINFO, &data, sizeof (data));
2408}
2409
183e98be
AM
2410static char *
2411ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2412{
2413 switch (note_type)
2414 {
2415 default:
2416 return NULL;
2417
2418 case NT_PRPSINFO:
2419 {
2420 char data[128];
2421 va_list ap;
2422
2423 va_start (ap, note_type);
75cd47ed 2424 memset (data, 0, sizeof (data));
183e98be
AM
2425 strncpy (data + 32, va_arg (ap, const char *), 16);
2426 strncpy (data + 48, va_arg (ap, const char *), 80);
2427 va_end (ap);
2428 return elfcore_write_note (abfd, buf, bufsiz,
2429 "CORE", note_type, data, sizeof (data));
2430 }
2431
2432 case NT_PRSTATUS:
2433 {
2434 char data[268];
2435 va_list ap;
2436 long pid;
2437 int cursig;
2438 const void *greg;
2439
2440 va_start (ap, note_type);
2441 memset (data, 0, 72);
2442 pid = va_arg (ap, long);
2443 bfd_put_32 (abfd, pid, data + 24);
2444 cursig = va_arg (ap, int);
2445 bfd_put_16 (abfd, cursig, data + 12);
2446 greg = va_arg (ap, const void *);
2447 memcpy (data + 72, greg, 192);
2448 memset (data + 264, 0, 4);
2449 va_end (ap);
2450 return elfcore_write_note (abfd, buf, bufsiz,
2451 "CORE", note_type, data, sizeof (data));
2452 }
2453 }
2454}
2455
b9c361e0 2456static flagword
68ffbac6 2457ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2458{
2459
2460 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2461 return SHF_PPC_VLE;
2462
2463 return 0;
2464}
2465
25dbc73a
AM
2466/* Return address for Ith PLT stub in section PLT, for relocation REL
2467 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2468
25dbc73a
AM
2469static bfd_vma
2470ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2471 const asection *plt ATTRIBUTE_UNUSED,
2472 const arelent *rel)
2473{
2474 return rel->address;
2475}
deaaf2f3 2476
25dbc73a 2477/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2478 is called when bfd_section_from_shdr finds a section with an unknown
2479 type. */
deaaf2f3 2480
25dbc73a 2481static bfd_boolean
6dc132d9
L
2482ppc_elf_section_from_shdr (bfd *abfd,
2483 Elf_Internal_Shdr *hdr,
2484 const char *name,
2485 int shindex)
25dbc73a
AM
2486{
2487 asection *newsect;
2488 flagword flags;
d1c6de6f 2489
6dc132d9 2490 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2491 return FALSE;
deaaf2f3 2492
25dbc73a
AM
2493 newsect = hdr->bfd_section;
2494 flags = bfd_get_section_flags (abfd, newsect);
2495 if (hdr->sh_flags & SHF_EXCLUDE)
2496 flags |= SEC_EXCLUDE;
9abc968f 2497
25dbc73a
AM
2498 if (hdr->sh_type == SHT_ORDERED)
2499 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2500
25dbc73a
AM
2501 bfd_set_section_flags (abfd, newsect, flags);
2502 return TRUE;
2503}
2504
2505/* Set up any other section flags and such that may be necessary. */
2506
2507static bfd_boolean
2508ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2509 Elf_Internal_Shdr *shdr,
2510 asection *asect)
2511{
25dbc73a
AM
2512 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2513 shdr->sh_type = SHT_ORDERED;
2514
2515 return TRUE;
2516}
2517
2518/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2519 need to bump up the number of section headers. */
2520
2521static int
a6b96beb
AM
2522ppc_elf_additional_program_headers (bfd *abfd,
2523 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2524{
2525 asection *s;
2526 int ret = 0;
d1c6de6f 2527
25dbc73a
AM
2528 s = bfd_get_section_by_name (abfd, ".sbss2");
2529 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2530 ++ret;
d1c6de6f 2531
25dbc73a
AM
2532 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2533 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2534 ++ret;
deaaf2f3 2535
25dbc73a
AM
2536 return ret;
2537}
deaaf2f3 2538
68ffbac6 2539/* Modify the segment map for VLE executables. */
b9c361e0
JL
2540
2541bfd_boolean
2542ppc_elf_modify_segment_map (bfd *abfd,
2543 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2544{
f7d69005 2545 struct elf_segment_map *m;
b9c361e0
JL
2546
2547 /* At this point in the link, output sections have already been sorted by
2548 LMA and assigned to segments. All that is left to do is to ensure
2549 there is no mixing of VLE & non-VLE sections in a text segment.
2550 If we find that case, we split the segment.
2551 We maintain the original output section order. */
2552
12bd6957 2553 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2554 {
f7d69005
AM
2555 struct elf_segment_map *n;
2556 bfd_size_type amt;
2557 unsigned int j, k;
2558 unsigned int p_flags;
2559
2560 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2561 continue;
2562
f7d69005 2563 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2564 {
f7d69005
AM
2565 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2566 p_flags |= PF_W;
2567 if ((m->sections[j]->flags & SEC_CODE) != 0)
2568 {
2569 p_flags |= PF_X;
2570 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2571 p_flags |= PF_PPC_VLE;
2572 break;
2573 }
2574 }
2575 if (j != m->count)
2576 while (++j != m->count)
2577 {
2578 unsigned int p_flags1 = PF_R;
94caa966 2579
f7d69005
AM
2580 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2581 p_flags1 |= PF_W;
2582 if ((m->sections[j]->flags & SEC_CODE) != 0)
2583 {
2584 p_flags1 |= PF_X;
2585 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2586 p_flags1 |= PF_PPC_VLE;
2587 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2588 break;
2589 }
2590 p_flags |= p_flags1;
2591 }
2592 /* If we're splitting a segment which originally contained rw
2593 sections then those sections might now only be in one of the
2594 two parts. So always set p_flags if splitting, even if we
2595 are being called for objcopy with p_flags_valid set. */
2596 if (j != m->count || !m->p_flags_valid)
2597 {
2598 m->p_flags_valid = 1;
2599 m->p_flags = p_flags;
2600 }
2601 if (j == m->count)
b9c361e0
JL
2602 continue;
2603
f7d69005 2604 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2605 the remainder are put in a new segment.
2606 The scan resumes with the new segment. */
2607
b9c361e0
JL
2608 amt = sizeof (struct elf_segment_map);
2609 amt += (m->count - j - 1) * sizeof (asection *);
2610 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2611 if (n == NULL)
954b63d4 2612 return FALSE;
b9c361e0
JL
2613
2614 n->p_type = PT_LOAD;
b9c361e0
JL
2615 n->count = m->count - j;
2616 for (k = 0; k < n->count; ++k)
f7d69005
AM
2617 n->sections[k] = m->sections[j + k];
2618 m->count = j;
2619 m->p_size_valid = 0;
b9c361e0
JL
2620 n->next = m->next;
2621 m->next = n;
b9c361e0
JL
2622 }
2623
2624 return TRUE;
2625}
2626
25dbc73a
AM
2627/* Add extra PPC sections -- Note, for now, make .sbss2 and
2628 .PPC.EMB.sbss0 a normal section, and not a bss section so
2629 that the linker doesn't crater when trying to make more than
2630 2 sections. */
e656e369 2631
b35d266b 2632static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2633{
14b57c7c
AM
2634 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2635 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2636 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2637 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2638 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2639 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2640 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2641 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2642 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2643 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2644};
2645
551b43fd
AM
2646/* This is what we want for new plt/got. */
2647static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2648 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2649
2650static const struct bfd_elf_special_section *
4aef7643 2651ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
7f4d3958 2652{
b35d266b 2653 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2654
2655 /* See if this is one of the special sections. */
2656 if (sec->name == NULL)
2657 return NULL;
2658
2659 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2660 sec->use_rela_p);
2661 if (ssect != NULL)
2662 {
2663 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2664 ssect = &ppc_alt_plt;
2665 return ssect;
2666 }
2667
2668 return _bfd_elf_get_sec_type_attr (abfd, sec);
2669}
25dbc73a
AM
2670\f
2671/* Very simple linked list structure for recording apuinfo values. */
2672typedef struct apuinfo_list
2673{
2674 struct apuinfo_list *next;
2675 unsigned long value;
2676}
2677apuinfo_list;
e656e369 2678
25dbc73a 2679static apuinfo_list *head;
f2faa800 2680static bfd_boolean apuinfo_set;
deaaf2f3 2681
25dbc73a
AM
2682static void
2683apuinfo_list_init (void)
2684{
2685 head = NULL;
f2faa800 2686 apuinfo_set = FALSE;
25dbc73a 2687}
9abc968f 2688
25dbc73a
AM
2689static void
2690apuinfo_list_add (unsigned long value)
2691{
2692 apuinfo_list *entry = head;
deaaf2f3 2693
25dbc73a
AM
2694 while (entry != NULL)
2695 {
2696 if (entry->value == value)
2697 return;
2698 entry = entry->next;
2699 }
b4a38de6 2700
25dbc73a
AM
2701 entry = bfd_malloc (sizeof (* entry));
2702 if (entry == NULL)
2703 return;
e656e369 2704
25dbc73a
AM
2705 entry->value = value;
2706 entry->next = head;
2707 head = entry;
2708}
9abc968f 2709
25dbc73a
AM
2710static unsigned
2711apuinfo_list_length (void)
2712{
2713 apuinfo_list *entry;
2714 unsigned long count;
9abc968f 2715
25dbc73a
AM
2716 for (entry = head, count = 0;
2717 entry;
2718 entry = entry->next)
2719 ++ count;
e656e369 2720
25dbc73a
AM
2721 return count;
2722}
eea6121a 2723
25dbc73a
AM
2724static inline unsigned long
2725apuinfo_list_element (unsigned long number)
2726{
2727 apuinfo_list * entry;
e656e369 2728
25dbc73a
AM
2729 for (entry = head;
2730 entry && number --;
2731 entry = entry->next)
2732 ;
252b5132 2733
25dbc73a
AM
2734 return entry ? entry->value : 0;
2735}
2736
2737static void
2738apuinfo_list_finish (void)
2739{
2740 apuinfo_list *entry;
2741
2742 for (entry = head; entry;)
252b5132 2743 {
25dbc73a
AM
2744 apuinfo_list *next = entry->next;
2745 free (entry);
2746 entry = next;
2747 }
9abc968f 2748
25dbc73a
AM
2749 head = NULL;
2750}
9abc968f 2751
25dbc73a
AM
2752/* Scan the input BFDs and create a linked list of
2753 the APUinfo values that will need to be emitted. */
9abc968f 2754
25dbc73a
AM
2755static void
2756ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2757{
2758 bfd *ibfd;
2759 asection *asec;
deddc40b
NS
2760 char *buffer = NULL;
2761 bfd_size_type largest_input_size = 0;
25dbc73a 2762 unsigned i;
25dbc73a
AM
2763 unsigned long length;
2764 const char *error_message = NULL;
9abc968f 2765
25dbc73a
AM
2766 if (link_info == NULL)
2767 return;
9abc968f 2768
25dbc73a 2769 apuinfo_list_init ();
252b5132 2770
25dbc73a 2771 /* Read in the input sections contents. */
c72f2fb2 2772 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2773 {
25dbc73a 2774 unsigned long datum;
252b5132 2775
25dbc73a
AM
2776 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2777 if (asec == NULL)
2778 continue;
252b5132 2779
695344c0 2780 /* xgettext:c-format */
deddc40b 2781 error_message = _("corrupt %s section in %B");
25dbc73a 2782 length = asec->size;
deddc40b
NS
2783 if (length < 20)
2784 goto fail;
2785
f2faa800 2786 apuinfo_set = TRUE;
deddc40b 2787 if (largest_input_size < asec->size)
25dbc73a 2788 {
deddc40b
NS
2789 if (buffer)
2790 free (buffer);
2791 largest_input_size = asec->size;
2792 buffer = bfd_malloc (largest_input_size);
2793 if (!buffer)
2794 return;
25dbc73a 2795 }
5b914448 2796
25dbc73a 2797 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2798 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2799 {
695344c0 2800 /* xgettext:c-format */
25dbc73a
AM
2801 error_message = _("unable to read in %s section from %B");
2802 goto fail;
2803 }
252b5132 2804
25dbc73a
AM
2805 /* Verify the contents of the header. Note - we have to
2806 extract the values this way in order to allow for a
2807 host whose endian-ness is different from the target. */
deddc40b 2808 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2809 if (datum != sizeof APUINFO_LABEL)
2810 goto fail;
252b5132 2811
deddc40b 2812 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2813 if (datum != 0x2)
2814 goto fail;
252b5132 2815
deddc40b 2816 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2817 goto fail;
252b5132 2818
25dbc73a 2819 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2820 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2821 if (datum + 20 != length)
2822 goto fail;
2823
25dbc73a
AM
2824 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2825 for (i = 0; i < datum; i += 4)
deddc40b 2826 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2827 }
2828
25dbc73a 2829 error_message = NULL;
252b5132 2830
f2faa800 2831 if (apuinfo_set)
deddc40b 2832 {
f2faa800
NS
2833 /* Compute the size of the output section. */
2834 unsigned num_entries = apuinfo_list_length ();
5b914448 2835
deddc40b
NS
2836 /* Set the output section size, if it exists. */
2837 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2838
deddc40b
NS
2839 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2840 {
2841 ibfd = abfd;
695344c0 2842 /* xgettext:c-format */
deddc40b
NS
2843 error_message = _("warning: unable to set size of %s section in %B");
2844 }
2845 }
25dbc73a
AM
2846
2847 fail:
deddc40b
NS
2848 if (buffer)
2849 free (buffer);
25dbc73a
AM
2850
2851 if (error_message)
4eca0228 2852 _bfd_error_handler (error_message, ibfd, APUINFO_SECTION_NAME);
25dbc73a 2853}
252b5132 2854
25dbc73a
AM
2855/* Prevent the output section from accumulating the input sections'
2856 contents. We have already stored this in our linked list structure. */
252b5132 2857
25dbc73a
AM
2858static bfd_boolean
2859ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2860 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2861 asection *asec,
2862 bfd_byte *contents ATTRIBUTE_UNUSED)
2863{
f2faa800 2864 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2865}
2866
25dbc73a
AM
2867/* Finally we can generate the output section. */
2868
2869static void
2870ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2871{
25dbc73a
AM
2872 bfd_byte *buffer;
2873 asection *asec;
2874 unsigned i;
2875 unsigned num_entries;
2876 bfd_size_type length;
7619e7c7 2877
25dbc73a
AM
2878 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2879 if (asec == NULL)
2880 return;
2881
f2faa800 2882 if (!apuinfo_set)
25dbc73a
AM
2883 return;
2884
2885 length = asec->size;
2886 if (length < 20)
2887 return;
2888
2889 buffer = bfd_malloc (length);
2890 if (buffer == NULL)
7619e7c7 2891 {
4eca0228 2892 _bfd_error_handler
25dbc73a
AM
2893 (_("failed to allocate space for new APUinfo section."));
2894 return;
7619e7c7 2895 }
7619e7c7 2896
25dbc73a
AM
2897 /* Create the apuinfo header. */
2898 num_entries = apuinfo_list_length ();
2899 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2900 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2901 bfd_put_32 (abfd, 0x2, buffer + 8);
2902 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2903
25dbc73a
AM
2904 length = 20;
2905 for (i = 0; i < num_entries; i++)
feee612b 2906 {
25dbc73a
AM
2907 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2908 length += 4;
feee612b 2909 }
feee612b 2910
25dbc73a 2911 if (length != asec->size)
4eca0228 2912 _bfd_error_handler (_("failed to compute new APUinfo section."));
252b5132 2913
25dbc73a 2914 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
4eca0228 2915 _bfd_error_handler (_("failed to install new APUinfo section."));
252b5132 2916
25dbc73a
AM
2917 free (buffer);
2918
2919 apuinfo_list_finish ();
252b5132 2920}
25dbc73a 2921\f
7382d32a 2922static bfd_boolean
c6dd29ce 2923is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2924{
c6dd29ce 2925 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2926
c6dd29ce 2927 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2928 return FALSE;
2929
c6dd29ce
AM
2930 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2931 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2932 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2933 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2934}
2935
468392fb
AM
2936static bfd_boolean
2937section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2938{
2939 bfd_vma vma = *(bfd_vma *) ptr;
2940 return ((section->flags & SEC_ALLOC) != 0
2941 && section->vma <= vma
2942 && vma < section->vma + section->size);
2943}
2944
2945static long
2946ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2947 long dynsymcount, asymbol **dynsyms,
2948 asymbol **ret)
2949{
2950 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2951 asection *plt, *relplt, *dynamic, *glink;
2952 bfd_vma glink_vma = 0;
2953 bfd_vma resolv_vma = 0;
2954 bfd_vma stub_vma;
2955 asymbol *s;
2956 arelent *p;
2957 long count, i;
2958 size_t size;
2959 char *names;
2960 bfd_byte buf[4];
2961
2962 *ret = NULL;
2963
2964 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2965 return 0;
2966
2967 if (dynsymcount <= 0)
2968 return 0;
2969
2970 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2971 if (relplt == NULL)
2972 return 0;
2973
2974 plt = bfd_get_section_by_name (abfd, ".plt");
2975 if (plt == NULL)
2976 return 0;
2977
2978 /* Call common code to handle old-style executable PLTs. */
2979 if (elf_section_flags (plt) & SHF_EXECINSTR)
2980 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2981 dynsymcount, dynsyms, ret);
2982
2983 /* If this object was prelinked, the prelinker stored the address
2984 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2985 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2986 if (dynamic != NULL)
2987 {
2988 bfd_byte *dynbuf, *extdyn, *extdynend;
2989 size_t extdynsize;
2990 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2991
2992 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2993 return -1;
2994
2995 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2996 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2997
2998 extdyn = dynbuf;
2999 extdynend = extdyn + dynamic->size;
3000 for (; extdyn < extdynend; extdyn += extdynsize)
3001 {
3002 Elf_Internal_Dyn dyn;
3003 (*swap_dyn_in) (abfd, extdyn, &dyn);
3004
3005 if (dyn.d_tag == DT_NULL)
3006 break;
3007
3008 if (dyn.d_tag == DT_PPC_GOT)
3009 {
3010 unsigned int g_o_t = dyn.d_un.d_val;
3011 asection *got = bfd_get_section_by_name (abfd, ".got");
3012 if (got != NULL
3013 && bfd_get_section_contents (abfd, got, buf,
3014 g_o_t - got->vma + 4, 4))
3015 glink_vma = bfd_get_32 (abfd, buf);
3016 break;
3017 }
3018 }
3019 free (dynbuf);
3020 }
3021
3022 /* Otherwise we read the first plt entry. */
3023 if (glink_vma == 0)
3024 {
3025 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
3026 glink_vma = bfd_get_32 (abfd, buf);
3027 }
3028
3029 if (glink_vma == 0)
3030 return 0;
3031
3032 /* The .glink section usually does not survive the final
3033 link; search for the section (usually .text) where the
3034 glink stubs now reside. */
3035 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
3036 if (glink == NULL)
3037 return 0;
3038
3039 /* Determine glink PLT resolver by reading the relative branch
3040 from the first glink stub. */
3041 if (bfd_get_section_contents (abfd, glink, buf,
3042 glink_vma - glink->vma, 4))
3043 {
3044 unsigned int insn = bfd_get_32 (abfd, buf);
3045
3046 /* The first glink stub may either branch to the resolver ... */
3047 insn ^= B;
3048 if ((insn & ~0x3fffffc) == 0)
3049 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3050
3051 /* ... or fall through a bunch of NOPs. */
3052 else if ((insn ^ B ^ NOP) == 0)
3053 for (i = 4;
3054 bfd_get_section_contents (abfd, glink, buf,
3055 glink_vma - glink->vma + i, 4);
3056 i += 4)
3057 if (bfd_get_32 (abfd, buf) != NOP)
3058 {
3059 resolv_vma = glink_vma + i;
3060 break;
3061 }
3062 }
3063
7382d32a 3064 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3065 /* If the stubs are those for -shared/-pie then we might have
3066 multiple stubs for each plt entry. If that is the case then
3067 there is no way to associate stubs with their plt entries short
3068 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
3069 if (!is_nonpic_glink_stub (abfd, glink,
3070 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
3071 return 0;
3072
468392fb
AM
3073 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3074 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3075 return -1;
3076
468392fb
AM
3077 size = count * sizeof (asymbol);
3078 p = relplt->relocation;
3079 for (i = 0; i < count; i++, p++)
e054468f
AM
3080 {
3081 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3082 if (p->addend != 0)
3083 size += sizeof ("+0x") - 1 + 8;
3084 }
468392fb
AM
3085
3086 size += sizeof (asymbol) + sizeof ("__glink");
3087
3088 if (resolv_vma)
3089 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3090
3091 s = *ret = bfd_malloc (size);
3092 if (s == NULL)
3093 return -1;
3094
1079403c 3095 stub_vma = glink_vma;
468392fb 3096 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3097 p = relplt->relocation + count - 1;
3098 for (i = 0; i < count; i++)
468392fb
AM
3099 {
3100 size_t len;
3101
3102 *s = **p->sym_ptr_ptr;
3103 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3104 we are defining a symbol, ensure one of them is set. */
3105 if ((s->flags & BSF_LOCAL) == 0)
3106 s->flags |= BSF_GLOBAL;
6ba2a415 3107 s->flags |= BSF_SYNTHETIC;
468392fb 3108 s->section = glink;
1079403c
AM
3109 stub_vma -= 16;
3110 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3111 stub_vma -= 32;
468392fb
AM
3112 s->value = stub_vma - glink->vma;
3113 s->name = names;
3114 s->udata.p = NULL;
3115 len = strlen ((*p->sym_ptr_ptr)->name);
3116 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3117 names += len;
e054468f
AM
3118 if (p->addend != 0)
3119 {
3120 memcpy (names, "+0x", sizeof ("+0x") - 1);
3121 names += sizeof ("+0x") - 1;
3122 bfd_sprintf_vma (abfd, names, p->addend);
3123 names += strlen (names);
3124 }
468392fb
AM
3125 memcpy (names, "@plt", sizeof ("@plt"));
3126 names += sizeof ("@plt");
3127 ++s;
1079403c 3128 --p;
468392fb
AM
3129 }
3130
3131 /* Add a symbol at the start of the glink branch table. */
86a4952b 3132 memset (s, 0, sizeof *s);
468392fb 3133 s->the_bfd = abfd;
6ba2a415 3134 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3135 s->section = glink;
3136 s->value = glink_vma - glink->vma;
3137 s->name = names;
3138 memcpy (names, "__glink", sizeof ("__glink"));
3139 names += sizeof ("__glink");
3140 s++;
3141 count++;
3142
3143 if (resolv_vma)
3144 {
3145 /* Add a symbol for the glink PLT resolver. */
86a4952b 3146 memset (s, 0, sizeof *s);
468392fb 3147 s->the_bfd = abfd;
6ba2a415 3148 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3149 s->section = glink;
3150 s->value = resolv_vma - glink->vma;
3151 s->name = names;
3152 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3153 names += sizeof ("__glink_PLTresolve");
3154 s++;
3155 count++;
3156 }
3157
3158 return count;
3159}
3160\f
25dbc73a
AM
3161/* The following functions are specific to the ELF linker, while
3162 functions above are used generally. They appear in this file more
3163 or less in the order in which they are called. eg.
3164 ppc_elf_check_relocs is called early in the link process,
3165 ppc_elf_finish_dynamic_sections is one of the last functions
3166 called. */
252b5132 3167
a6aa5195 3168/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3169 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3170struct plt_entry
3171{
3172 struct plt_entry *next;
3173
3174 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3175 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3176 GOT pointer reg. It will always be at least 32768. (Current
3177 gcc always uses an offset of 32768, but ld -r will pack .got2
3178 sections together resulting in larger offsets). */
a6aa5195
AM
3179 bfd_vma addend;
3180
3181 /* The .got2 section. */
3182 asection *sec;
3183
3184 /* PLT refcount or offset. */
3185 union
3186 {
3187 bfd_signed_vma refcount;
3188 bfd_vma offset;
3189 } plt;
3190
3191 /* .glink stub offset. */
3192 bfd_vma glink_offset;
3193};
3194
1d483afe 3195/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
3196 selects those that must be copied when linking a shared library,
3197 even when the symbol is local. */
252b5132 3198
1d483afe
AM
3199static int
3200must_be_dyn_reloc (struct bfd_link_info *info,
3201 enum elf_ppc_reloc_type r_type)
3202{
3203 switch (r_type)
3204 {
3205 default:
3206 return 1;
3207
3208 case R_PPC_REL24:
3209 case R_PPC_REL14:
3210 case R_PPC_REL14_BRTAKEN:
3211 case R_PPC_REL14_BRNTAKEN:
3212 case R_PPC_REL32:
3213 return 0;
3214
3215 case R_PPC_TPREL32:
3216 case R_PPC_TPREL16:
3217 case R_PPC_TPREL16_LO:
3218 case R_PPC_TPREL16_HI:
3219 case R_PPC_TPREL16_HA:
0e1862bb 3220 return !bfd_link_executable (info);
1d483afe
AM
3221 }
3222}
252b5132 3223
21d68fcd
AM
3224/* Whether an undefined weak symbol should resolve to its link-time
3225 value, even in PIC or PIE objects. */
3226#define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
3227 ((H)->root.type == bfd_link_hash_undefweak \
3228 && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
3229 || (INFO)->dynamic_undefined_weak == 0))
3230
25dbc73a
AM
3231/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3232 copying dynamic variables from a shared lib into an app's dynbss
3233 section, and instead use a dynamic relocation to point into the
3234 shared lib. */
3235#define ELIMINATE_COPY_RELOCS 1
252b5132 3236
f95f8542
AM
3237/* Used to track dynamic relocations for local symbols. */
3238struct ppc_dyn_relocs
3239{
3240 struct ppc_dyn_relocs *next;
3241
3242 /* The input section of the reloc. */
3243 asection *sec;
3244
3245 /* Total number of relocs copied for the input section. */
3246 unsigned int count : 31;
3247
3248 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3249 unsigned int ifunc : 1;
3250};
3251
25dbc73a 3252/* PPC ELF linker hash entry. */
252b5132 3253
25dbc73a
AM
3254struct ppc_elf_link_hash_entry
3255{
3256 struct elf_link_hash_entry elf;
252b5132 3257
25dbc73a
AM
3258 /* If this symbol is used in the linker created sections, the processor
3259 specific backend uses this field to map the field into the offset
3260 from the beginning of the section. */
3261 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3262
25dbc73a 3263 /* Track dynamic relocs copied for this symbol. */
6061a67d 3264 struct elf_dyn_relocs *dyn_relocs;
252b5132 3265
25dbc73a
AM
3266 /* Contexts in which symbol is used in the GOT (or TOC).
3267 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3268 corresponding relocs are encountered during check_relocs.
3269 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3270 indicate the corresponding GOT entry type is not needed. */
3271#define TLS_GD 1 /* GD reloc. */
3272#define TLS_LD 2 /* LD reloc. */
3273#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3274#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3275#define TLS_TLS 16 /* Any TLS reloc. */
3276#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3277#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3278 char tls_mask;
4dc4a9a5
DJ
3279
3280 /* Nonzero if we have seen a small data relocation referring to this
3281 symbol. */
d3e454b9
AM
3282 unsigned char has_sda_refs : 1;
3283
3284 /* Flag use of given relocations. */
3285 unsigned char has_addr16_ha : 1;
3286 unsigned char has_addr16_lo : 1;
25dbc73a 3287};
252b5132 3288
25dbc73a
AM
3289#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3290
3291/* PPC ELF linker hash table. */
3292
3293struct ppc_elf_link_hash_table
3294{
3295 struct elf_link_hash_table elf;
3296
5446cbdf
AM
3297 /* Various options passed from the linker. */
3298 struct ppc_elf_params *params;
3299
25dbc73a 3300 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3301 asection *glink;
25dbc73a
AM
3302 asection *dynsbss;
3303 asection *relsbss;
c9a2f333 3304 elf_linker_section_t sdata[2];
25dbc73a 3305 asection *sbss;
6177242a 3306 asection *glink_eh_frame;
25dbc73a 3307
016687f8
AM
3308 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3309 asection *srelplt2;
3310
1d483afe 3311 /* Shortcut to __tls_get_addr. */
25dbc73a 3312 struct elf_link_hash_entry *tls_get_addr;
252b5132 3313
016687f8
AM
3314 /* The bfd that forced an old-style PLT. */
3315 bfd *old_bfd;
5b914448 3316
25dbc73a
AM
3317 /* TLS local dynamic got entry handling. */
3318 union {
3319 bfd_signed_vma refcount;
3320 bfd_vma offset;
3321 } tlsld_got;
252b5132 3322
c6dd29ce 3323 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3324 bfd_vma glink_pltresolve;
3325
3b36f7e6
AM
3326 /* Size of reserved GOT entries. */
3327 unsigned int got_header_size;
3328 /* Non-zero if allocating the header left a gap. */
3329 unsigned int got_gap;
3330
4a3dc543
RS
3331 /* The type of PLT we have chosen to use. */
3332 enum ppc_elf_plt_type plt_type;
3333
9d8504b1 3334 /* True if the target system is VxWorks. */
016687f8 3335 unsigned int is_vxworks:1;
9d8504b1 3336
82e66161
AM
3337 /* Whether there exist local gnu indirect function resolvers,
3338 referenced by dynamic relocations. */
3339 unsigned int local_ifunc_resolver:1;
3340 unsigned int maybe_local_ifunc_resolver:1;
3341
9d8504b1
PB
3342 /* The size of PLT entries. */
3343 int plt_entry_size;
3344 /* The distance between adjacent PLT slots. */
3345 int plt_slot_size;
3346 /* The size of the first PLT entry. */
3347 int plt_initial_entry_size;
016687f8 3348
87d72d41
AM
3349 /* Small local sym cache. */
3350 struct sym_cache sym_cache;
25dbc73a 3351};
252b5132 3352
94caa966
AM
3353/* Rename some of the generic section flags to better document how they
3354 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3355
3356/* Nonzero if this section has TLS related relocations. */
3357#define has_tls_reloc sec_flg0
3358
3359/* Nonzero if this section has a call to __tls_get_addr. */
3360#define has_tls_get_addr_call sec_flg1
3361
25dbc73a 3362/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3363
25dbc73a 3364#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3365 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3366 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3367
25dbc73a 3368/* Create an entry in a PPC ELF linker hash table. */
252b5132 3369
25dbc73a
AM
3370static struct bfd_hash_entry *
3371ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3372 struct bfd_hash_table *table,
3373 const char *string)
252b5132 3374{
25dbc73a
AM
3375 /* Allocate the structure if it has not already been allocated by a
3376 subclass. */
3377 if (entry == NULL)
3378 {
3379 entry = bfd_hash_allocate (table,
3380 sizeof (struct ppc_elf_link_hash_entry));
3381 if (entry == NULL)
3382 return entry;
3383 }
252b5132 3384
25dbc73a
AM
3385 /* Call the allocation method of the superclass. */
3386 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3387 if (entry != NULL)
3388 {
3389 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3390 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3391 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3392 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3393 }
252b5132 3394
25dbc73a 3395 return entry;
252b5132 3396}
3dab13f6 3397
25dbc73a 3398/* Create a PPC ELF linker hash table. */
3dab13f6 3399
25dbc73a
AM
3400static struct bfd_link_hash_table *
3401ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3402{
25dbc73a 3403 struct ppc_elf_link_hash_table *ret;
76e7a751 3404 static struct ppc_elf_params default_params
08dc996f 3405 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3406
25dbc73a
AM
3407 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3408 if (ret == NULL)
3409 return NULL;
3dab13f6 3410
66eb6687
AM
3411 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3412 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3413 sizeof (struct ppc_elf_link_hash_entry),
3414 PPC32_ELF_DATA))
3dab13f6 3415 {
25dbc73a
AM
3416 free (ret);
3417 return NULL;
3418 }
58111eb7 3419
a6aa5195
AM
3420 ret->elf.init_plt_refcount.refcount = 0;
3421 ret->elf.init_plt_refcount.glist = NULL;
3422 ret->elf.init_plt_offset.offset = 0;
3423 ret->elf.init_plt_offset.glist = NULL;
3424
db434ba0
AM
3425 ret->params = &default_params;
3426
c9a2f333
AM
3427 ret->sdata[0].name = ".sdata";
3428 ret->sdata[0].sym_name = "_SDA_BASE_";
3429 ret->sdata[0].bss_name = ".sbss";
3430
3431 ret->sdata[1].name = ".sdata2";
3432 ret->sdata[1].sym_name = "_SDA2_BASE_";
3433 ret->sdata[1].bss_name = ".sbss2";
3434
9d8504b1
PB
3435 ret->plt_entry_size = 12;
3436 ret->plt_slot_size = 8;
3437 ret->plt_initial_entry_size = 72;
9d8504b1 3438
25dbc73a
AM
3439 return &ret->elf.root;
3440}
3dab13f6 3441
5446cbdf
AM
3442/* Hook linker params into hash table. */
3443
3444void
3445ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3446{
3447 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3448
3449 if (htab)
3450 htab->params = params;
76e7a751 3451 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3452}
3453
9d8504b1 3454/* Create .got and the related sections. */
3dab13f6 3455
25dbc73a
AM
3456static bfd_boolean
3457ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3458{
3459 struct ppc_elf_link_hash_table *htab;
3dab13f6 3460
25dbc73a
AM
3461 if (!_bfd_elf_create_got_section (abfd, info))
3462 return FALSE;
3dab13f6 3463
25dbc73a 3464 htab = ppc_elf_hash_table (info);
ce558b89 3465 if (!htab->is_vxworks)
9d8504b1
PB
3466 {
3467 /* The powerpc .got has a blrl instruction in it. Mark it
3468 executable. */
ce558b89
AM
3469 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3470 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3471 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3472 return FALSE;
3473 }
3dab13f6 3474
25dbc73a
AM
3475 return TRUE;
3476}
3dab13f6 3477
93d1b056
AM
3478/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3479 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3480 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3481
3482static bfd_boolean
3483ppc_elf_create_linker_section (bfd *abfd,
3484 struct bfd_link_info *info,
3485 flagword flags,
3486 elf_linker_section_t *lsect)
3487{
3488 asection *s;
3489
3490 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3491 | SEC_LINKER_CREATED);
3492
3493 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3494 if (s == NULL)
3495 return FALSE;
3496 lsect->section = s;
3497
3498 /* Define the sym on the first section of this name. */
3499 s = bfd_get_section_by_name (abfd, lsect->name);
3500
3501 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3502 if (lsect->sym == NULL)
3503 return FALSE;
3504 lsect->sym->root.u.def.value = 0x8000;
3505 return TRUE;
3506}
3507
e054468f
AM
3508static bfd_boolean
3509ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3510{
3511 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3512 asection *s;
3513 flagword flags;
3514
3515 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3516 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3517 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3518 htab->glink = s;
3519 if (s == NULL
5446cbdf
AM
3520 || !bfd_set_section_alignment (abfd, s,
3521 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3522 return FALSE;
3523
6177242a
AM
3524 if (!info->no_ld_generated_unwind_info)
3525 {
3526 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3527 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3528 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3529 htab->glink_eh_frame = s;
3530 if (s == NULL
3531 || !bfd_set_section_alignment (abfd, s, 2))
3532 return FALSE;
3533 }
3534
e054468f
AM
3535 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3536 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3537 htab->elf.iplt = s;
e054468f
AM
3538 if (s == NULL
3539 || !bfd_set_section_alignment (abfd, s, 4))
3540 return FALSE;
3541
3542 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3543 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3544 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3545 htab->elf.irelplt = s;
e054468f
AM
3546 if (s == NULL
3547 || ! bfd_set_section_alignment (abfd, s, 2))
3548 return FALSE;
93d1b056
AM
3549
3550 if (!ppc_elf_create_linker_section (abfd, info, 0,
3551 &htab->sdata[0]))
3552 return FALSE;
3553
3554 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3555 &htab->sdata[1]))
3556 return FALSE;
3557
e054468f
AM
3558 return TRUE;
3559}
3560
25dbc73a
AM
3561/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3562 to output sections (just like _bfd_elf_create_dynamic_sections has
3563 to create .dynbss and .rela.bss). */
3dab13f6 3564
25dbc73a
AM
3565static bfd_boolean
3566ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3567{
3568 struct ppc_elf_link_hash_table *htab;
3569 asection *s;
3570 flagword flags;
3dab13f6 3571
25dbc73a 3572 htab = ppc_elf_hash_table (info);
3dab13f6 3573
ce558b89 3574 if (htab->elf.sgot == NULL
25dbc73a 3575 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3576 return FALSE;
3577
25dbc73a
AM
3578 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3579 return FALSE;
3dab13f6 3580
e054468f
AM
3581 if (htab->glink == NULL
3582 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3583 return FALSE;
3dab13f6 3584
14b2f831
AM
3585 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3586 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3587 htab->dynsbss = s;
3496cb2a 3588 if (s == NULL)
25dbc73a 3589 return FALSE;
3dab13f6 3590
0e1862bb 3591 if (! bfd_link_pic (info))
25dbc73a 3592 {
e054468f
AM
3593 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3594 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3595 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3596 htab->relsbss = s;
25dbc73a 3597 if (s == NULL
25dbc73a
AM
3598 || ! bfd_set_section_alignment (abfd, s, 2))
3599 return FALSE;
3600 }
3dab13f6 3601
711de32c
RS
3602 if (htab->is_vxworks
3603 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3604 return FALSE;
9d8504b1 3605
ce558b89 3606 s = htab->elf.splt;
3b36f7e6 3607 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3608 if (htab->plt_type == PLT_VXWORKS)
3609 /* The VxWorks PLT is a loaded section with contents. */
3610 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3611 return bfd_set_section_flags (abfd, s, flags);
3612}
3dab13f6 3613
25dbc73a 3614/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3615
25dbc73a 3616static void
fcfa13d2 3617ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3618 struct elf_link_hash_entry *dir,
3619 struct elf_link_hash_entry *ind)
3620{
3621 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3622
25dbc73a
AM
3623 edir = (struct ppc_elf_link_hash_entry *) dir;
3624 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3625
c79d6685
AM
3626 edir->tls_mask |= eind->tls_mask;
3627 edir->has_sda_refs |= eind->has_sda_refs;
3628
3629 /* If called to transfer flags for a weakdef during processing
3630 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3631 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3632 if (!(ELIMINATE_COPY_RELOCS
3633 && eind->elf.root.type != bfd_link_hash_indirect
3634 && edir->elf.dynamic_adjusted))
3635 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3636
e81830c5
AM
3637 if (edir->elf.versioned != versioned_hidden)
3638 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3639 edir->elf.ref_regular |= eind->elf.ref_regular;
3640 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3641 edir->elf.needs_plt |= eind->elf.needs_plt;
3642 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3643
25dbc73a
AM
3644 if (eind->dyn_relocs != NULL)
3645 {
3646 if (edir->dyn_relocs != NULL)
3dab13f6 3647 {
6061a67d
AM
3648 struct elf_dyn_relocs **pp;
3649 struct elf_dyn_relocs *p;
3dab13f6 3650
fcfa13d2 3651 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3652 list. Merge any entries against the same section. */
3653 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3654 {
6061a67d 3655 struct elf_dyn_relocs *q;
25dbc73a
AM
3656
3657 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3658 if (q->sec == p->sec)
3659 {
3660 q->pc_count += p->pc_count;
3661 q->count += p->count;
3662 *pp = p->next;
3663 break;
3664 }
3665 if (q == NULL)
3666 pp = &p->next;
3dab13f6 3667 }
25dbc73a 3668 *pp = edir->dyn_relocs;
3dab13f6 3669 }
25dbc73a
AM
3670
3671 edir->dyn_relocs = eind->dyn_relocs;
3672 eind->dyn_relocs = NULL;
3dab13f6 3673 }
3dab13f6 3674
68ba6d40
AM
3675 /* If we were called to copy over info for a weak sym, that's all.
3676 You might think dyn_relocs need not be copied over; After all,
3677 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3678 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3679 code in ppc_elf_adjust_dynamic_symbol needs to check for
3680 dyn_relocs in read-only sections, and it does so on what is the
3681 DIR sym here. */
3682 if (eind->elf.root.type != bfd_link_hash_indirect)
3683 return;
3684
a6aa5195
AM
3685 /* Copy over the GOT refcount entries that we may have already seen to
3686 the symbol which just became indirect. */
fcfa13d2
AM
3687 edir->elf.got.refcount += eind->elf.got.refcount;
3688 eind->elf.got.refcount = 0;
a6aa5195
AM
3689
3690 /* And plt entries. */
3691 if (eind->elf.plt.plist != NULL)
3692 {
3693 if (edir->elf.plt.plist != NULL)
3694 {
3695 struct plt_entry **entp;
3696 struct plt_entry *ent;
3697
3698 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3699 {
3700 struct plt_entry *dent;
3701
3702 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3703 if (dent->sec == ent->sec && dent->addend == ent->addend)
3704 {
3705 dent->plt.refcount += ent->plt.refcount;
3706 *entp = ent->next;
3707 break;
3708 }
3709 if (dent == NULL)
3710 entp = &ent->next;
3711 }
3712 *entp = edir->elf.plt.plist;
3713 }
3714
3715 edir->elf.plt.plist = eind->elf.plt.plist;
3716 eind->elf.plt.plist = NULL;
3717 }
3718
fcfa13d2 3719 if (eind->elf.dynindx != -1)
25dbc73a 3720 {
fcfa13d2
AM
3721 if (edir->elf.dynindx != -1)
3722 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3723 edir->elf.dynstr_index);
a6aa5195
AM
3724 edir->elf.dynindx = eind->elf.dynindx;
3725 edir->elf.dynstr_index = eind->elf.dynstr_index;
3726 eind->elf.dynindx = -1;
3727 eind->elf.dynstr_index = 0;
25dbc73a 3728 }
25dbc73a 3729}
3dab13f6 3730
25dbc73a
AM
3731/* Hook called by the linker routine which adds symbols from an object
3732 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3733
25dbc73a
AM
3734static bfd_boolean
3735ppc_elf_add_symbol_hook (bfd *abfd,
3736 struct bfd_link_info *info,
3737 Elf_Internal_Sym *sym,
3738 const char **namep ATTRIBUTE_UNUSED,
3739 flagword *flagsp ATTRIBUTE_UNUSED,
3740 asection **secp,
3741 bfd_vma *valp)
3742{
3743 if (sym->st_shndx == SHN_COMMON
0e1862bb 3744 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3745 && is_ppc_elf (info->output_bfd)
3746 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3747 {
3748 /* Common symbols less than or equal to -G nn bytes are automatically
3749 put into .sbss. */
3750 struct ppc_elf_link_hash_table *htab;
3dab13f6 3751
25dbc73a
AM
3752 htab = ppc_elf_hash_table (info);
3753 if (htab->sbss == NULL)
3754 {
644285ef 3755 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3756
644285ef
AM
3757 if (!htab->elf.dynobj)
3758 htab->elf.dynobj = abfd;
3759
3496cb2a
L
3760 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3761 ".sbss",
3762 flags);
3763 if (htab->sbss == NULL)
25dbc73a 3764 return FALSE;
3dab13f6 3765 }
3dab13f6 3766
25dbc73a
AM
3767 *secp = htab->sbss;
3768 *valp = sym->st_size;
3769 }
3dab13f6 3770
a43942db 3771 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3772 && (abfd->flags & DYNAMIC) == 0
3773 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3774 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3775
25dbc73a 3776 return TRUE;
3dab13f6
AM
3777}
3778\f
25dbc73a
AM
3779/* Find a linker generated pointer with a given addend and type. */
3780
3781static elf_linker_section_pointers_t *
3782elf_find_pointer_linker_section
3783 (elf_linker_section_pointers_t *linker_pointers,
3784 bfd_vma addend,
3785 elf_linker_section_t *lsect)
252b5132 3786{
25dbc73a
AM
3787 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3788 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3789 return linker_pointers;
252b5132 3790
25dbc73a
AM
3791 return NULL;
3792}
3793
3794/* Allocate a pointer to live in a linker created section. */
3795
3796static bfd_boolean
93d1b056
AM
3797elf_allocate_pointer_linker_section (bfd *abfd,
3798 elf_linker_section_t *lsect,
3799 struct elf_link_hash_entry *h,
3800 const Elf_Internal_Rela *rel)
25dbc73a
AM
3801{
3802 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3803 elf_linker_section_pointers_t *linker_section_ptr;
3804 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3805 bfd_size_type amt;
3806
3807 BFD_ASSERT (lsect != NULL);
3808
3809 /* Is this a global symbol? */
3810 if (h != NULL)
3811 {
3812 struct ppc_elf_link_hash_entry *eh;
3813
3814 /* Has this symbol already been allocated? If so, our work is done. */
3815 eh = (struct ppc_elf_link_hash_entry *) h;
3816 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3817 rel->r_addend,
3818 lsect))
3819 return TRUE;
3820
3821 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3822 }
3823 else
3824 {
0c8d6e5c 3825 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3826
25dbc73a
AM
3827 /* Allocation of a pointer to a local symbol. */
3828 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3829
3830 /* Allocate a table to hold the local symbols if first time. */
3831 if (!ptr)
3832 {
0ffa91dd 3833 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3834
3835 amt = num_symbols;
3836 amt *= sizeof (elf_linker_section_pointers_t *);
3837 ptr = bfd_zalloc (abfd, amt);
3838
3839 if (!ptr)
3840 return FALSE;
3841
3842 elf_local_ptr_offsets (abfd) = ptr;
3843 }
3844
3845 /* Has this symbol already been allocated? If so, our work is done. */
3846 if (elf_find_pointer_linker_section (ptr[r_symndx],
3847 rel->r_addend,
3848 lsect))
3849 return TRUE;
252b5132 3850
25dbc73a 3851 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3852 }
41fcb14e 3853
25dbc73a
AM
3854 /* Allocate space for a pointer in the linker section, and allocate
3855 a new pointer record from internal memory. */
3856 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3857 amt = sizeof (elf_linker_section_pointers_t);
3858 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3859
25dbc73a 3860 if (!linker_section_ptr)
7619e7c7 3861 return FALSE;
41fcb14e 3862
25dbc73a
AM
3863 linker_section_ptr->next = *ptr_linker_section_ptr;
3864 linker_section_ptr->addend = rel->r_addend;
3865 linker_section_ptr->lsect = lsect;
25dbc73a 3866 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3867
93d1b056
AM
3868 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3869 return FALSE;
25dbc73a
AM
3870 linker_section_ptr->offset = lsect->section->size;
3871 lsect->section->size += 4;
7619e7c7 3872
25dbc73a
AM
3873#ifdef DEBUG
3874 fprintf (stderr,
3875 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3876 lsect->name, (long) linker_section_ptr->offset,
3877 (long) lsect->section->size);
3878#endif
7619e7c7
AM
3879
3880 return TRUE;
41fcb14e
AM
3881}
3882
e054468f 3883static struct plt_entry **
25dbc73a
AM
3884update_local_sym_info (bfd *abfd,
3885 Elf_Internal_Shdr *symtab_hdr,
3886 unsigned long r_symndx,
3887 int tls_type)
252b5132 3888{
25dbc73a 3889 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3890 struct plt_entry **local_plt;
25dbc73a 3891 char *local_got_tls_masks;
252b5132 3892
25dbc73a 3893 if (local_got_refcounts == NULL)
252b5132 3894 {
25dbc73a
AM
3895 bfd_size_type size = symtab_hdr->sh_info;
3896
e054468f
AM
3897 size *= (sizeof (*local_got_refcounts)
3898 + sizeof (*local_plt)
3899 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3900 local_got_refcounts = bfd_zalloc (abfd, size);
3901 if (local_got_refcounts == NULL)
e054468f 3902 return NULL;
25dbc73a 3903 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3904 }
41fcb14e 3905
e054468f
AM
3906 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3907 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3908 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3909 if (tls_type != PLT_IFUNC)
3910 local_got_refcounts[r_symndx] += 1;
3911 return local_plt + r_symndx;
25dbc73a 3912}
41fcb14e 3913
a6aa5195 3914static bfd_boolean
3ec01793 3915update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3916 asection *sec, bfd_vma addend)
3917{
3918 struct plt_entry *ent;
3919
32af9f6e
AM
3920 if (addend < 32768)
3921 sec = NULL;
3ec01793 3922 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3923 if (ent->sec == sec && ent->addend == addend)
3924 break;
3925 if (ent == NULL)
3926 {
3927 bfd_size_type amt = sizeof (*ent);
3928 ent = bfd_alloc (abfd, amt);
3929 if (ent == NULL)
3930 return FALSE;
3ec01793 3931 ent->next = *plist;
a6aa5195
AM
3932 ent->sec = sec;
3933 ent->addend = addend;
3934 ent->plt.refcount = 0;
3ec01793 3935 *plist = ent;
a6aa5195
AM
3936 }
3937 ent->plt.refcount += 1;
3938 return TRUE;
3939}
3940
3941static struct plt_entry *
3ec01793 3942find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3943{
3944 struct plt_entry *ent;
3945
3946 if (addend < 32768)
3947 sec = NULL;
3ec01793 3948 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3949 if (ent->sec == sec && ent->addend == addend)
3950 break;
3951 return ent;
3952}
3953
e054468f
AM
3954static bfd_boolean
3955is_branch_reloc (enum elf_ppc_reloc_type r_type)
3956{
3957 return (r_type == R_PPC_PLTREL24
3958 || r_type == R_PPC_LOCAL24PC
3959 || r_type == R_PPC_REL24
3960 || r_type == R_PPC_REL14
3961 || r_type == R_PPC_REL14_BRTAKEN
3962 || r_type == R_PPC_REL14_BRNTAKEN
3963 || r_type == R_PPC_ADDR24
3964 || r_type == R_PPC_ADDR14
3965 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3966 || r_type == R_PPC_ADDR14_BRNTAKEN
3967 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3968}
3969
25dbc73a
AM
3970static void
3971bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3972{
4eca0228 3973 _bfd_error_handler
695344c0 3974 /* xgettext:c-format */
25dbc73a
AM
3975 (_("%B: relocation %s cannot be used when making a shared object"),
3976 abfd,
3977 ppc_elf_howto_table[r_type]->name);
3978 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3979}
3980
25dbc73a
AM
3981/* Look through the relocs for a section during the first phase, and
3982 allocate space in the global offset table or procedure linkage
3983 table. */
252b5132 3984
b34976b6 3985static bfd_boolean
25dbc73a
AM
3986ppc_elf_check_relocs (bfd *abfd,
3987 struct bfd_link_info *info,
3988 asection *sec,
3989 const Elf_Internal_Rela *relocs)
252b5132 3990{
7619e7c7 3991 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3992 Elf_Internal_Shdr *symtab_hdr;
3993 struct elf_link_hash_entry **sym_hashes;
3994 const Elf_Internal_Rela *rel;
3995 const Elf_Internal_Rela *rel_end;
a6aa5195 3996 asection *got2, *sreloc;
727fc41e 3997 struct elf_link_hash_entry *tga;
25dbc73a 3998
0e1862bb 3999 if (bfd_link_relocatable (info))
25dbc73a 4000 return TRUE;
252b5132 4001
c87b5a93
AM
4002 /* Don't do anything special with non-loaded, non-alloced sections.
4003 In particular, any relocs in such sections should not affect GOT
4004 and PLT reference counting (ie. we don't allow them to create GOT
4005 or PLT entries), there's no possibility or desire to optimize TLS
4006 relocs, and there's not much point in propagating relocs to shared
4007 libs that the dynamic linker won't relocate. */
4008 if ((sec->flags & SEC_ALLOC) == 0)
4009 return TRUE;
4010
252b5132 4011#ifdef DEBUG
25dbc73a
AM
4012 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
4013 sec, abfd);
252b5132
RH
4014#endif
4015
0c8d6e5c 4016 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 4017
25dbc73a
AM
4018 /* Initialize howto table if not already done. */
4019 if (!ppc_elf_howto_table[R_PPC_ADDR32])
4020 ppc_elf_howto_init ();
4021
7619e7c7 4022 htab = ppc_elf_hash_table (info);
25f23106
AM
4023 if (htab->glink == NULL)
4024 {
4025 if (htab->elf.dynobj == NULL)
4026 htab->elf.dynobj = abfd;
4027 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
4028 return FALSE;
4029 }
727fc41e
AM
4030 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4031 FALSE, FALSE, TRUE);
0ffa91dd 4032 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 4033 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 4034 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4035 sreloc = NULL;
4036
4037 rel_end = relocs + sec->reloc_count;
4038 for (rel = relocs; rel < rel_end; rel++)
4039 {
4040 unsigned long r_symndx;
4041 enum elf_ppc_reloc_type r_type;
4042 struct elf_link_hash_entry *h;
727fc41e 4043 int tls_type;
cbf95972 4044 struct plt_entry **ifunc;
25dbc73a
AM
4045
4046 r_symndx = ELF32_R_SYM (rel->r_info);
4047 if (r_symndx < symtab_hdr->sh_info)
4048 h = NULL;
4049 else
973a3492
L
4050 {
4051 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4052 while (h->root.type == bfd_link_hash_indirect
4053 || h->root.type == bfd_link_hash_warning)
4054 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4055
4056 /* PR15323, ref flags aren't set for references in the same
4057 object. */
bc4e12de 4058 h->root.non_ir_ref_regular = 1;
973a3492 4059 }
25dbc73a
AM
4060
4061 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4062 This shows up in particular in an R_PPC_ADDR32 in the eabi
4063 startup code. */
3b36f7e6 4064 if (h != NULL
ce558b89 4065 && htab->elf.sgot == NULL
3b36f7e6 4066 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4067 {
3b36f7e6
AM
4068 if (htab->elf.dynobj == NULL)
4069 htab->elf.dynobj = abfd;
4070 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4071 return FALSE;
4072 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4073 }
252b5132 4074
727fc41e 4075 tls_type = 0;
de972ffa 4076 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4077 ifunc = NULL;
06a162cf 4078 if (h == NULL && !htab->is_vxworks)
e054468f 4079 {
06a162cf
AM
4080 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4081 abfd, r_symndx);
4082 if (isym == NULL)
4083 return FALSE;
4084
0bed072f 4085 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4086 {
0bed072f 4087 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4088 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4089 PLT_IFUNC);
4090 if (ifunc == NULL)
e054468f
AM
4091 return FALSE;
4092
06a162cf
AM
4093 /* STT_GNU_IFUNC symbols must have a PLT entry;
4094 In a non-pie executable even when there are
4095 no plt calls. */
0e1862bb 4096 if (!bfd_link_pic (info)
0bed072f 4097 || is_branch_reloc (r_type))
e054468f 4098 {
0bed072f
AM
4099 bfd_vma addend = 0;
4100 if (r_type == R_PPC_PLTREL24)
4101 {
4102 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4103 if (bfd_link_pic (info))
0bed072f
AM
4104 addend = rel->r_addend;
4105 }
4106 if (!update_plt_info (abfd, ifunc, got2, addend))
4107 return FALSE;
e054468f
AM
4108 }
4109 }
25f23106
AM
4110 }
4111
de972ffa
AM
4112 if (!htab->is_vxworks
4113 && is_branch_reloc (r_type)
4114 && h != NULL
4115 && h == tga)
25f23106 4116 {
de972ffa
AM
4117 if (rel != relocs
4118 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4119 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4120 /* We have a new-style __tls_get_addr call with a marker
4121 reloc. */
4122 ;
4123 else
4124 /* Mark this section as having an old-style call. */
4125 sec->has_tls_get_addr_call = 1;
e054468f 4126 }
727fc41e 4127
25dbc73a
AM
4128 switch (r_type)
4129 {
727fc41e
AM
4130 case R_PPC_TLSGD:
4131 case R_PPC_TLSLD:
4132 /* These special tls relocs tie a call to __tls_get_addr with
4133 its parameter symbol. */
4134 break;
4135
25dbc73a
AM
4136 case R_PPC_GOT_TLSLD16:
4137 case R_PPC_GOT_TLSLD16_LO:
4138 case R_PPC_GOT_TLSLD16_HI:
4139 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4140 tls_type = TLS_TLS | TLS_LD;
4141 goto dogottls;
252b5132 4142
25dbc73a
AM
4143 case R_PPC_GOT_TLSGD16:
4144 case R_PPC_GOT_TLSGD16_LO:
4145 case R_PPC_GOT_TLSGD16_HI:
4146 case R_PPC_GOT_TLSGD16_HA:
4147 tls_type = TLS_TLS | TLS_GD;
4148 goto dogottls;
4149
4150 case R_PPC_GOT_TPREL16:
4151 case R_PPC_GOT_TPREL16_LO:
4152 case R_PPC_GOT_TPREL16_HI:
4153 case R_PPC_GOT_TPREL16_HA:
0e1862bb 4154 if (bfd_link_pic (info))
25dbc73a
AM
4155 info->flags |= DF_STATIC_TLS;
4156 tls_type = TLS_TLS | TLS_TPREL;
4157 goto dogottls;
4158
4159 case R_PPC_GOT_DTPREL16:
4160 case R_PPC_GOT_DTPREL16_LO:
4161 case R_PPC_GOT_DTPREL16_HI:
4162 case R_PPC_GOT_DTPREL16_HA:
4163 tls_type = TLS_TLS | TLS_DTPREL;
4164 dogottls:
4165 sec->has_tls_reloc = 1;
1a0670f3 4166 /* Fall through. */
252b5132 4167
25dbc73a
AM
4168 /* GOT16 relocations */
4169 case R_PPC_GOT16:
4170 case R_PPC_GOT16_LO:
4171 case R_PPC_GOT16_HI:
4172 case R_PPC_GOT16_HA:
4173 /* This symbol requires a global offset table entry. */
ce558b89 4174 if (htab->elf.sgot == NULL)
25dbc73a
AM
4175 {
4176 if (htab->elf.dynobj == NULL)
4177 htab->elf.dynobj = abfd;
4178 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4179 return FALSE;
4180 }
4181 if (h != NULL)
4182 {
4183 h->got.refcount += 1;
4184 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4185 }
4186 else
4187 /* This is a global offset table entry for a local symbol. */
4188 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4189 return FALSE;
91e21fb7
AM
4190
4191 /* We may also need a plt entry if the symbol turns out to be
4192 an ifunc. */
0e1862bb 4193 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4194 {
4195 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4196 return FALSE;
4197 }
25dbc73a 4198 break;
252b5132 4199
25dbc73a
AM
4200 /* Indirect .sdata relocation. */
4201 case R_PPC_EMB_SDAI16:
0e1862bb 4202 if (bfd_link_pic (info))
25dbc73a
AM
4203 {
4204 bad_shared_reloc (abfd, r_type);
4205 return FALSE;
4206 }
93d1b056
AM
4207 htab->sdata[0].sym->ref_regular = 1;
4208 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4209 h, rel))
25dbc73a 4210 return FALSE;
046183de
AM
4211 if (h != NULL)
4212 {
4213 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4214 h->non_got_ref = TRUE;
4215 }
25dbc73a 4216 break;
252b5132 4217
25dbc73a
AM
4218 /* Indirect .sdata2 relocation. */
4219 case R_PPC_EMB_SDA2I16:
0e1862bb 4220 if (bfd_link_pic (info))
25dbc73a
AM
4221 {
4222 bad_shared_reloc (abfd, r_type);
4223 return FALSE;
4224 }
93d1b056
AM
4225 htab->sdata[1].sym->ref_regular = 1;
4226 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4227 h, rel))
25dbc73a 4228 return FALSE;
046183de
AM
4229 if (h != NULL)
4230 {
4231 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4232 h->non_got_ref = TRUE;
4233 }
25dbc73a 4234 break;
252b5132 4235
93d1b056
AM
4236 case R_PPC_SDAREL16:
4237 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4238 /* Fall through. */
93d1b056 4239
b9c361e0
JL
4240 case R_PPC_VLE_SDAREL_LO16A:
4241 case R_PPC_VLE_SDAREL_LO16D:
4242 case R_PPC_VLE_SDAREL_HI16A:
4243 case R_PPC_VLE_SDAREL_HI16D:
4244 case R_PPC_VLE_SDAREL_HA16A:
4245 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4246 if (h != NULL)
4247 {
4248 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4249 h->non_got_ref = TRUE;
4250 }
4251 break;
4252
b9c361e0
JL
4253 case R_PPC_VLE_REL8:
4254 case R_PPC_VLE_REL15:
4255 case R_PPC_VLE_REL24:
4256 case R_PPC_VLE_LO16A:
4257 case R_PPC_VLE_LO16D:
4258 case R_PPC_VLE_HI16A:
4259 case R_PPC_VLE_HI16D:
4260 case R_PPC_VLE_HA16A:
4261 case R_PPC_VLE_HA16D:
4262 break;
4263
25dbc73a 4264 case R_PPC_EMB_SDA2REL:
0e1862bb 4265 if (bfd_link_pic (info))
046183de
AM
4266 {
4267 bad_shared_reloc (abfd, r_type);
4268 return FALSE;
4269 }
93d1b056 4270 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4271 if (h != NULL)
4272 {
4273 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4274 h->non_got_ref = TRUE;
4275 }
4276 break;
4277
b9c361e0
JL
4278 case R_PPC_VLE_SDA21_LO:
4279 case R_PPC_VLE_SDA21:
25dbc73a
AM
4280 case R_PPC_EMB_SDA21:
4281 case R_PPC_EMB_RELSDA:
0e1862bb 4282 if (bfd_link_pic (info))
046183de
AM
4283 {
4284 bad_shared_reloc (abfd, r_type);
4285 return FALSE;
4286 }
046183de
AM
4287 if (h != NULL)
4288 {
4289 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4290 h->non_got_ref = TRUE;
4291 }
4292 break;
4293
25dbc73a
AM
4294 case R_PPC_EMB_NADDR32:
4295 case R_PPC_EMB_NADDR16:
4296 case R_PPC_EMB_NADDR16_LO:
4297 case R_PPC_EMB_NADDR16_HI:
4298 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4299 if (bfd_link_pic (info))
25dbc73a
AM
4300 {
4301 bad_shared_reloc (abfd, r_type);
4302 return FALSE;
4303 }
4dc4a9a5 4304 if (h != NULL)
046183de 4305 h->non_got_ref = TRUE;
25dbc73a 4306 break;
252b5132 4307
25dbc73a 4308 case R_PPC_PLTREL24:
de972ffa 4309 if (h == NULL)
6d78d0b9
AM
4310 break;
4311 /* Fall through */
4312 case R_PPC_PLT32:
25dbc73a
AM
4313 case R_PPC_PLTREL32:
4314 case R_PPC_PLT16_LO:
4315 case R_PPC_PLT16_HI:
4316 case R_PPC_PLT16_HA:
4317#ifdef DEBUG
4318 fprintf (stderr, "Reloc requires a PLT entry\n");
4319#endif
cbf95972 4320 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4321 if (h == NULL)
4322 {
cbf95972
AM
4323 if (ifunc == NULL)
4324 {
4325 /* It does not make sense to have a procedure linkage
4326 table entry for a non-ifunc local symbol. */
4327 info->callbacks->einfo
695344c0 4328 /* xgettext:c-format */
174d0a74 4329 (_("%H: %s reloc against local symbol\n"),
cbf95972
AM
4330 abfd, sec, rel->r_offset,
4331 ppc_elf_howto_table[r_type]->name);
4332 bfd_set_error (bfd_error_bad_value);
4333 return FALSE;
4334 }
25dbc73a 4335 }
a6aa5195
AM
4336 else
4337 {
016687f8 4338 bfd_vma addend = 0;
ee05f2fe 4339
016687f8
AM
4340 if (r_type == R_PPC_PLTREL24)
4341 {
4342 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4343 if (bfd_link_pic (info))
a877a2b6 4344 addend = rel->r_addend;
016687f8 4345 }
a6aa5195 4346 h->needs_plt = 1;
32af9f6e 4347 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4348 return FALSE;
4349 }
25dbc73a 4350 break;
ee05f2fe 4351
25dbc73a
AM
4352 /* The following relocations don't need to propagate the
4353 relocation if linking a shared object since they are
4354 section relative. */
4355 case R_PPC_SECTOFF:
4356 case R_PPC_SECTOFF_LO:
4357 case R_PPC_SECTOFF_HI:
4358 case R_PPC_SECTOFF_HA:
4359 case R_PPC_DTPREL16:
4360 case R_PPC_DTPREL16_LO:
4361 case R_PPC_DTPREL16_HI:
4362 case R_PPC_DTPREL16_HA:
4363 case R_PPC_TOC16:
4364 break;
252b5132 4365
d7128ce4
AM
4366 case R_PPC_REL16:
4367 case R_PPC_REL16_LO:
4368 case R_PPC_REL16_HI:
4369 case R_PPC_REL16_HA:
a680de9a 4370 case R_PPC_REL16DX_HA:
016687f8 4371 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4372 break;
4373
a6aa5195 4374 /* These are just markers. */
25dbc73a
AM
4375 case R_PPC_TLS:
4376 case R_PPC_EMB_MRKREF:
4377 case R_PPC_NONE:
4378 case R_PPC_max:
32af9f6e
AM
4379 case R_PPC_RELAX:
4380 case R_PPC_RELAX_PLT:
4381 case R_PPC_RELAX_PLTREL24:
7ba71655 4382 case R_PPC_16DX_HA:
25dbc73a 4383 break;
252b5132 4384
25dbc73a
AM
4385 /* These should only appear in dynamic objects. */
4386 case R_PPC_COPY:
4387 case R_PPC_GLOB_DAT:
4388 case R_PPC_JMP_SLOT:
4389 case R_PPC_RELATIVE:
e054468f 4390 case R_PPC_IRELATIVE:
25dbc73a 4391 break;
252b5132 4392
25dbc73a
AM
4393 /* These aren't handled yet. We'll report an error later. */
4394 case R_PPC_ADDR30:
4395 case R_PPC_EMB_RELSEC16:
4396 case R_PPC_EMB_RELST_LO:
4397 case R_PPC_EMB_RELST_HI:
4398 case R_PPC_EMB_RELST_HA:
4399 case R_PPC_EMB_BIT_FLD:
4400 break;
252b5132 4401
25dbc73a
AM
4402 /* This refers only to functions defined in the shared library. */
4403 case R_PPC_LOCAL24PC:
727fc41e 4404 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4405 {
4406 htab->plt_type = PLT_OLD;
4407 htab->old_bfd = abfd;
4408 }
c7e17e05
AM
4409 if (h != NULL && h->type == STT_GNU_IFUNC)
4410 {
c7e17e05
AM
4411 h->needs_plt = 1;
4412 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4413 return FALSE;
4414 }
25dbc73a 4415 break;
252b5132 4416
25dbc73a
AM
4417 /* This relocation describes the C++ object vtable hierarchy.
4418 Reconstruct it for later use during GC. */
4419 case R_PPC_GNU_VTINHERIT:
4420 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4421 return FALSE;
4422 break;
252b5132 4423
25dbc73a
AM
4424 /* This relocation describes which C++ vtable entries are actually
4425 used. Record for later use during GC. */
4426 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4427 BFD_ASSERT (h != NULL);
4428 if (h != NULL
4429 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4430 return FALSE;
4431 break;
252b5132 4432
25dbc73a
AM
4433 /* We shouldn't really be seeing these. */
4434 case R_PPC_TPREL32:
1d483afe
AM
4435 case R_PPC_TPREL16:
4436 case R_PPC_TPREL16_LO:
4437 case R_PPC_TPREL16_HI:
4438 case R_PPC_TPREL16_HA:
0e1862bb 4439 if (bfd_link_pic (info))
25dbc73a
AM
4440 info->flags |= DF_STATIC_TLS;
4441 goto dodyn;
252b5132 4442
25dbc73a
AM
4443 /* Nor these. */
4444 case R_PPC_DTPMOD32:
4445 case R_PPC_DTPREL32:
4446 goto dodyn;
252b5132 4447
9edfd1af
AM
4448 case R_PPC_REL32:
4449 if (h == NULL
4450 && got2 != NULL
4451 && (sec->flags & SEC_CODE) != 0
0e1862bb 4452 && bfd_link_pic (info)
4a3dc543 4453 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4454 {
4455 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4456 the start of a function, which assembles to a REL32
4457 reference to .got2. If we detect one of these, then
4458 force the old PLT layout because the linker cannot
4459 reliably deduce the GOT pointer value needed for
4460 PLT call stubs. */
4461 asection *s;
87d72d41 4462 Elf_Internal_Sym *isym;
9edfd1af 4463
87d72d41
AM
4464 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4465 abfd, r_symndx);
4466 if (isym == NULL)
4467 return FALSE;
4468
4469 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4470 if (s == got2)
016687f8
AM
4471 {
4472 htab->plt_type = PLT_OLD;
4473 htab->old_bfd = abfd;
4474 }
9edfd1af 4475 }
7123df0e 4476 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4477 break;
625af618
AM
4478 /* fall through */
4479
4480 case R_PPC_ADDR32:
4481 case R_PPC_ADDR16:
4482 case R_PPC_ADDR16_LO:
4483 case R_PPC_ADDR16_HI:
4484 case R_PPC_ADDR16_HA:
4485 case R_PPC_UADDR32:
4486 case R_PPC_UADDR16:
0e1862bb 4487 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4488 {
4489 /* We may need a plt entry if the symbol turns out to be
4490 a function defined in a dynamic object. */
3ec01793 4491 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4492 return FALSE;
4493
4494 /* We may need a copy reloc too. */
4495 h->non_got_ref = 1;
4496 h->pointer_equality_needed = 1;
d3e454b9
AM
4497 if (r_type == R_PPC_ADDR16_HA)
4498 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4499 if (r_type == R_PPC_ADDR16_LO)
4500 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4501 }
4502 goto dodyn;
9edfd1af 4503
25dbc73a
AM
4504 case R_PPC_REL24:
4505 case R_PPC_REL14:
4506 case R_PPC_REL14_BRTAKEN:
4507 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4508 if (h == NULL)
25dbc73a 4509 break;
7123df0e 4510 if (h == htab->elf.hgot)
d7128ce4 4511 {
7123df0e 4512 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4513 {
4514 htab->plt_type = PLT_OLD;
4515 htab->old_bfd = abfd;
4516 }
d7128ce4
AM
4517 break;
4518 }
25dbc73a 4519 /* fall through */
ee05f2fe 4520
25dbc73a 4521 case R_PPC_ADDR24:
25dbc73a
AM
4522 case R_PPC_ADDR14:
4523 case R_PPC_ADDR14_BRTAKEN:
4524 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4525 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4526 {
4527 /* We may need a plt entry if the symbol turns out to be
4528 a function defined in a dynamic object. */
e054468f 4529 h->needs_plt = 1;
de972ffa 4530 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4531 return FALSE;
625af618 4532 break;
25dbc73a 4533 }
7619e7c7 4534
25dbc73a
AM
4535 dodyn:
4536 /* If we are creating a shared library, and this is a reloc
4537 against a global symbol, or a non PC relative reloc
4538 against a local symbol, then we need to copy the reloc
4539 into the shared library. However, if we are linking with
4540 -Bsymbolic, we do not need to copy a reloc against a
4541 global symbol which is defined in an object we are
4542 including in the link (i.e., DEF_REGULAR is set). At
4543 this point we have not seen all the input files, so it is
4544 possible that DEF_REGULAR is not set now but will be set
4545 later (it is never cleared). In case of a weak definition,
4546 DEF_REGULAR may be cleared later by a strong definition in
4547 a shared library. We account for that possibility below by
4548 storing information in the dyn_relocs field of the hash
4549 table entry. A similar situation occurs when creating
4550 shared libraries and symbol visibility changes render the
4551 symbol local.
7619e7c7 4552
25dbc73a
AM
4553 If on the other hand, we are creating an executable, we
4554 may need to keep relocations for symbols satisfied by a
4555 dynamic library if we manage to avoid copy relocs for the
4556 symbol. */
0e1862bb 4557 if ((bfd_link_pic (info)
1d483afe 4558 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4559 || (h != NULL
198f1157 4560 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4561 || h->root.type == bfd_link_hash_defweak
4562 || !h->def_regular))))
4563 || (ELIMINATE_COPY_RELOCS
0e1862bb 4564 && !bfd_link_pic (info)
25dbc73a
AM
4565 && h != NULL
4566 && (h->root.type == bfd_link_hash_defweak
de972ffa 4567 || !h->def_regular)))
25dbc73a 4568 {
25dbc73a
AM
4569#ifdef DEBUG
4570 fprintf (stderr,
4571 "ppc_elf_check_relocs needs to "
4572 "create relocation for %s\n",
4573 (h && h->root.root.string
4574 ? h->root.root.string : "<unknown>"));
4575#endif
4576 if (sreloc == NULL)
4577 {
c9a2f333
AM
4578 if (htab->elf.dynobj == NULL)
4579 htab->elf.dynobj = abfd;
83bac4b0
NC
4580
4581 sreloc = _bfd_elf_make_dynamic_reloc_section
4582 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4583
25dbc73a 4584 if (sreloc == NULL)
83bac4b0 4585 return FALSE;
25dbc73a 4586 }
7619e7c7 4587
25dbc73a
AM
4588 /* If this is a global symbol, we count the number of
4589 relocations we need for this symbol. */
4590 if (h != NULL)
4591 {
f95f8542
AM
4592 struct elf_dyn_relocs *p;
4593 struct elf_dyn_relocs **rel_head;
4594
91d6fa6a 4595 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4596 p = *rel_head;
4597 if (p == NULL || p->sec != sec)
4598 {
4599 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4600 if (p == NULL)
4601 return FALSE;
4602 p->next = *rel_head;
4603 *rel_head = p;
4604 p->sec = sec;
4605 p->count = 0;
4606 p->pc_count = 0;
4607 }
4608 p->count += 1;
4609 if (!must_be_dyn_reloc (info, r_type))
4610 p->pc_count += 1;
25dbc73a
AM
4611 }
4612 else
4613 {
4614 /* Track dynamic relocs needed for local syms too.
4615 We really need local syms available to do this
4616 easily. Oh well. */
f95f8542
AM
4617 struct ppc_dyn_relocs *p;
4618 struct ppc_dyn_relocs **rel_head;
4619 bfd_boolean is_ifunc;
25dbc73a 4620 asection *s;
6edfbbad 4621 void *vpp;
87d72d41 4622 Elf_Internal_Sym *isym;
6edfbbad 4623
87d72d41
AM
4624 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4625 abfd, r_symndx);
4626 if (isym == NULL)
25dbc73a 4627 return FALSE;
7fce784e 4628
87d72d41
AM
4629 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4630 if (s == NULL)
4631 s = sec;
4632
6edfbbad 4633 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4634 rel_head = (struct ppc_dyn_relocs **) vpp;
4635 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4636 p = *rel_head;
4637 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4638 p = p->next;
4639 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4640 {
4641 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4642 if (p == NULL)
4643 return FALSE;
4644 p->next = *rel_head;
4645 *rel_head = p;
4646 p->sec = sec;
4647 p->ifunc = is_ifunc;
4648 p->count = 0;
4649 }
4650 p->count += 1;
25dbc73a 4651 }
7619e7c7 4652 }
25dbc73a
AM
4653
4654 break;
7619e7c7
AM
4655 }
4656 }
ee05f2fe 4657
25dbc73a
AM
4658 return TRUE;
4659}
4660\f
005d79fd
AM
4661/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4662 and OBFD, and merge non-conflicting ones. */
4663void
50e03d47 4664_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4665{
50e03d47 4666 bfd *obfd = info->output_bfd;
c6e65352
DJ
4667 obj_attribute *in_attr, *in_attrs;
4668 obj_attribute *out_attr, *out_attrs;
34c8bcba 4669
c6e65352
DJ
4670 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4671 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4672
c6e65352
DJ
4673 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4674 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4675
c6e65352 4676 if (in_attr->i != out_attr->i)
34c8bcba 4677 {
005d79fd
AM
4678 int in_fp = in_attr->i & 3;
4679 int out_fp = out_attr->i & 3;
4680
4681 if (in_fp == 0)
34c8bcba 4682 ;
005d79fd
AM
4683 else if (out_fp == 0)
4684 {
4685 out_attr->type = 1;
4686 out_attr->i ^= in_fp;
4687 }
4688 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4689 _bfd_error_handler
695344c0 4690 /* xgettext:c-format */
34c8bcba 4691 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4692 else if (out_fp == 2 && in_fp != 2)
4693 _bfd_error_handler
695344c0 4694 /* xgettext:c-format */
005d79fd
AM
4695 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4696 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4697 _bfd_error_handler
695344c0 4698 /* xgettext:c-format */
005d79fd
AM
4699 (_("Warning: %B uses double-precision hard float, "
4700 "%B uses single-precision hard float"), obfd, ibfd);
4701 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4702 _bfd_error_handler
695344c0 4703 /* xgettext:c-format */
005d79fd
AM
4704 (_("Warning: %B uses double-precision hard float, "
4705 "%B uses single-precision hard float"), ibfd, obfd);
4706
4707 in_fp = in_attr->i & 0xc;
4708 out_fp = out_attr->i & 0xc;
4709 if (in_fp == 0)
4710 ;
4711 else if (out_fp == 0)
4712 {
4713 out_attr->type = 1;
4714 out_attr->i ^= in_fp;
4715 }
4716 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4717 _bfd_error_handler
695344c0 4718 /* xgettext:c-format */
005d79fd
AM
4719 (_("Warning: %B uses 64-bit long double, "
4720 "%B uses 128-bit long double"), ibfd, obfd);
4721 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4722 _bfd_error_handler
695344c0 4723 /* xgettext:c-format */
005d79fd
AM
4724 (_("Warning: %B uses 64-bit long double, "
4725 "%B uses 128-bit long double"), obfd, ibfd);
4726 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4727 _bfd_error_handler
695344c0 4728 /* xgettext:c-format */
005d79fd
AM
4729 (_("Warning: %B uses IBM long double, "
4730 "%B uses IEEE long double"), ibfd, obfd);
4731 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4732 _bfd_error_handler
695344c0 4733 /* xgettext:c-format */
005d79fd
AM
4734 (_("Warning: %B uses IBM long double, "
4735 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4736 }
005d79fd
AM
4737}
4738
4739/* Merge object attributes from IBFD into OBFD. Warn if
4740 there are conflicting attributes. */
4741static bfd_boolean
50e03d47 4742ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4743{
50e03d47 4744 bfd *obfd;
005d79fd
AM
4745 obj_attribute *in_attr, *in_attrs;
4746 obj_attribute *out_attr, *out_attrs;
4747
50e03d47 4748 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4749
50e03d47 4750 obfd = info->output_bfd;
005d79fd
AM
4751 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4752 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4753
4754 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4755 merge non-conflicting ones. */
4756 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4757 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4758 if (in_attr->i != out_attr->i)
4759 {
005d79fd
AM
4760 int in_vec = in_attr->i & 3;
4761 int out_vec = out_attr->i & 3;
c6e65352 4762
005d79fd
AM
4763 if (in_vec == 0)
4764 ;
4765 else if (out_vec == 0)
c6e65352 4766 {
005d79fd
AM
4767 out_attr->type = 1;
4768 out_attr->i = in_vec;
c6e65352 4769 }
c6e65352
DJ
4770 /* For now, allow generic to transition to AltiVec or SPE
4771 without a warning. If GCC marked files with their stack
4772 alignment and used don't-care markings for files which are
4773 not affected by the vector ABI, we could warn about this
4774 case too. */
005d79fd 4775 else if (in_vec == 1)
c6e65352 4776 ;
005d79fd
AM
4777 else if (out_vec == 1)
4778 {
4779 out_attr->type = 1;
4780 out_attr->i = in_vec;
4781 }
4782 else if (out_vec < in_vec)
c6e65352 4783 _bfd_error_handler
695344c0 4784 /* xgettext:c-format */
005d79fd
AM
4785 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4786 obfd, ibfd);
4787 else if (out_vec > in_vec)
c6e65352 4788 _bfd_error_handler
695344c0 4789 /* xgettext:c-format */
005d79fd
AM
4790 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4791 ibfd, obfd);
34c8bcba
JM
4792 }
4793
f82e0623
NF
4794 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4795 and merge non-conflicting ones. */
4796 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4797 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4798 if (in_attr->i != out_attr->i)
4799 {
005d79fd
AM
4800 int in_struct = in_attr->i & 3;
4801 int out_struct = out_attr->i & 3;
4802
4803 if (in_struct == 0 || in_struct == 3)
f82e0623 4804 ;
005d79fd
AM
4805 else if (out_struct == 0)
4806 {
4807 out_attr->type = 1;
4808 out_attr->i = in_struct;
4809 }
4810 else if (out_struct < in_struct)
4811 _bfd_error_handler
695344c0 4812 /* xgettext:c-format */
005d79fd
AM
4813 (_("Warning: %B uses r3/r4 for small structure returns, "
4814 "%B uses memory"), obfd, ibfd);
4815 else if (out_struct > in_struct)
4816 _bfd_error_handler
695344c0 4817 /* xgettext:c-format */
005d79fd
AM
4818 (_("Warning: %B uses r3/r4 for small structure returns, "
4819 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4820 }
4821
34c8bcba 4822 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4823 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4824
4825 return TRUE;
4826}
4827
8853c3d3
AM
4828/* Merge backend specific data from an object file to the output
4829 object file when linking. */
4830
4831static bfd_boolean
50e03d47 4832ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4833{
50e03d47 4834 bfd *obfd = info->output_bfd;
8853c3d3
AM
4835 flagword old_flags;
4836 flagword new_flags;
4837 bfd_boolean error;
4838
0c8d6e5c 4839 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4840 return TRUE;
4841
cc643b88 4842 /* Check if we have the same endianness. */
50e03d47 4843 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4844 return FALSE;
4845
50e03d47 4846 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4847 return FALSE;
4848
8853c3d3
AM
4849 new_flags = elf_elfheader (ibfd)->e_flags;
4850 old_flags = elf_elfheader (obfd)->e_flags;
4851 if (!elf_flags_init (obfd))
4852 {
4853 /* First call, no flags set. */
4854 elf_flags_init (obfd) = TRUE;
4855 elf_elfheader (obfd)->e_flags = new_flags;
4856 }
4857
4858 /* Compatible flags are ok. */
4859 else if (new_flags == old_flags)
4860 ;
4861
4862 /* Incompatible flags. */
4863 else
4864 {
4865 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4866 to be linked with either. */
4867 error = FALSE;
4868 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4869 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4870 {
4871 error = TRUE;
4eca0228 4872 _bfd_error_handler
8853c3d3
AM
4873 (_("%B: compiled with -mrelocatable and linked with "
4874 "modules compiled normally"), ibfd);
4875 }
4876 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4877 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4878 {
4879 error = TRUE;
4eca0228 4880 _bfd_error_handler
8853c3d3
AM
4881 (_("%B: compiled normally and linked with "
4882 "modules compiled with -mrelocatable"), ibfd);
4883 }
4884
4885 /* The output is -mrelocatable-lib iff both the input files are. */
4886 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4887 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4888
4889 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4890 but each input file is either -mrelocatable or -mrelocatable-lib. */
4891 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4892 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4893 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4894 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4895
4896 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4897 any module uses it. */
4898 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4899
4900 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4901 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4902
4903 /* Warn about any other mismatches. */
4904 if (new_flags != old_flags)
4905 {
4906 error = TRUE;
4eca0228 4907 _bfd_error_handler
695344c0 4908 /* xgettext:c-format */
8853c3d3
AM
4909 (_("%B: uses different e_flags (0x%lx) fields "
4910 "than previous modules (0x%lx)"),
4911 ibfd, (long) new_flags, (long) old_flags);
4912 }
4913
4914 if (error)
4915 {
4916 bfd_set_error (bfd_error_bad_value);
4917 return FALSE;
4918 }
4919 }
4920
4921 return TRUE;
4922}
b9c361e0
JL
4923
4924static void
95f0d0d2 4925ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
4926 asection *input_section,
4927 unsigned long offset,
95f0d0d2 4928 bfd_byte *loc,
86c95733 4929 bfd_vma value,
08dc996f
AM
4930 split16_format_type split16_format,
4931 bfd_boolean fixup)
b9c361e0 4932{
08dc996f 4933 unsigned int insn, opcode, top5;
b9c361e0 4934
95f0d0d2 4935 insn = bfd_get_32 (input_bfd, loc);
673cff9b 4936 opcode = insn & 0xfc00f800;
08dc996f
AM
4937 if (opcode == E_OR2I_INSN
4938 || opcode == E_AND2I_DOT_INSN
4939 || opcode == E_OR2IS_INSN
4940 || opcode == E_LIS_INSN
4941 || opcode == E_AND2IS_DOT_INSN)
4942 {
4943 if (split16_format != split16a_type)
4944 {
4945 if (fixup)
4946 split16_format = split16a_type;
4947 else
4948 _bfd_error_handler
4949 /* xgettext:c-format */
4950 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4951 input_bfd, input_section, offset, opcode);
4952 }
4953 }
4954 else if (opcode == E_ADD2I_DOT_INSN
4955 || opcode == E_ADD2IS_INSN
4956 || opcode == E_CMP16I_INSN
4957 || opcode == E_MULL2I_INSN
4958 || opcode == E_CMPL16I_INSN
4959 || opcode == E_CMPH16I_INSN
4960 || opcode == E_CMPHL16I_INSN)
4961 {
4962 if (split16_format != split16d_type)
4963 {
4964 if (fixup)
4965 split16_format = split16d_type;
4966 else
4967 _bfd_error_handler
4968 /* xgettext:c-format */
4969 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4970 input_bfd, input_section, offset, opcode);
4971 }
4972 }
86c95733 4973 top5 = value & 0xf800;
5499c7c7
AM
4974 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
4975 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
b9c361e0 4976 insn |= top5;
86c95733 4977 insn |= value & 0x7ff;
95f0d0d2 4978 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 4979}
8853c3d3 4980\f
d7128ce4
AM
4981/* Choose which PLT scheme to use, and set .plt flags appropriately.
4982 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4983int
4984ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4985 struct bfd_link_info *info)
d7128ce4
AM
4986{
4987 struct ppc_elf_link_hash_table *htab;
9d8504b1 4988 flagword flags;
d7128ce4
AM
4989
4990 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4991
4992 if (htab->plt_type == PLT_UNSET)
016687f8 4993 {
b3874e1a
AM
4994 struct elf_link_hash_entry *h;
4995
5446cbdf 4996 if (htab->params->plt_style == PLT_OLD)
016687f8 4997 htab->plt_type = PLT_OLD;
0e1862bb 4998 else if (bfd_link_pic (info)
b3874e1a
AM
4999 && htab->elf.dynamic_sections_created
5000 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
5001 FALSE, FALSE, TRUE)) != NULL
5002 && (h->type == STT_FUNC
5003 || h->needs_plt)
5004 && h->ref_regular
5005 && !(SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 5006 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
b3874e1a
AM
5007 {
5008 /* Profiling of shared libs (and pies) is not supported with
5009 secure plt, because ppc32 does profiling before a
5010 function prologue and a secure plt pic call stubs needs
5011 r30 to be set up. */
5012 htab->plt_type = PLT_OLD;
5013 }
016687f8
AM
5014 else
5015 {
5016 bfd *ibfd;
5446cbdf 5017 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
5018
5019 /* Look through the reloc flags left by ppc_elf_check_relocs.
5020 Use the old style bss plt if a file makes plt calls
5021 without using the new relocs, and if ld isn't given
5022 --secure-plt and we never see REL16 relocs. */
5023 if (plt_type == PLT_UNSET)
5024 plt_type = PLT_OLD;
c72f2fb2 5025 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 5026 if (is_ppc_elf (ibfd))
016687f8
AM
5027 {
5028 if (ppc_elf_tdata (ibfd)->has_rel16)
5029 plt_type = PLT_NEW;
5030 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5031 {
5032 plt_type = PLT_OLD;
5033 htab->old_bfd = ibfd;
5034 break;
5035 }
5036 }
5037 htab->plt_type = plt_type;
5038 }
5039 }
5446cbdf 5040 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5041 {
5042 if (htab->old_bfd != NULL)
5043 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5044 htab->old_bfd);
5045 else
5046 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5047 }
d7128ce4 5048
4a3dc543 5049 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5050
4a3dc543 5051 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5052 {
5053 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5054 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5055
5056 /* The new PLT is a loaded section. */
ce558b89
AM
5057 if (htab->elf.splt != NULL
5058 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5059 return -1;
5060
5061 /* The new GOT is not executable. */
ce558b89
AM
5062 if (htab->elf.sgot != NULL
5063 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5064 return -1;
d7128ce4
AM
5065 }
5066 else
5067 {
5068 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5069 if (htab->glink != NULL
5070 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5071 return -1;
d7128ce4 5072 }
4a3dc543 5073 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5074}
5075\f
25dbc73a
AM
5076/* Return the section that should be marked against GC for a given
5077 relocation. */
586119b3 5078
25dbc73a
AM
5079static asection *
5080ppc_elf_gc_mark_hook (asection *sec,
07adf181 5081 struct bfd_link_info *info,
25dbc73a
AM
5082 Elf_Internal_Rela *rel,
5083 struct elf_link_hash_entry *h,
5084 Elf_Internal_Sym *sym)
5085{
5086 if (h != NULL)
07adf181
AM
5087 switch (ELF32_R_TYPE (rel->r_info))
5088 {
5089 case R_PPC_GNU_VTINHERIT:
5090 case R_PPC_GNU_VTENTRY:
5091 return NULL;
5092 }
5093
5094 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5095}
a876ecf9 5096
25dbc73a
AM
5097/* Update the got, plt and dynamic reloc reference counts for the
5098 section being removed. */
5099
5100static bfd_boolean
5101ppc_elf_gc_sweep_hook (bfd *abfd,
5102 struct bfd_link_info *info,
5103 asection *sec,
5104 const Elf_Internal_Rela *relocs)
5105{
5106 struct ppc_elf_link_hash_table *htab;
5107 Elf_Internal_Shdr *symtab_hdr;
5108 struct elf_link_hash_entry **sym_hashes;
5109 bfd_signed_vma *local_got_refcounts;
5110 const Elf_Internal_Rela *rel, *relend;
a6aa5195 5111 asection *got2;
25dbc73a 5112
0e1862bb 5113 if (bfd_link_relocatable (info))
7dda2462
TG
5114 return TRUE;
5115
c87b5a93
AM
5116 if ((sec->flags & SEC_ALLOC) == 0)
5117 return TRUE;
5118
25dbc73a
AM
5119 elf_section_data (sec)->local_dynrel = NULL;
5120
5121 htab = ppc_elf_hash_table (info);
0ffa91dd 5122 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
5123 sym_hashes = elf_sym_hashes (abfd);
5124 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 5125 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
5126
5127 relend = relocs + sec->reloc_count;
5128 for (rel = relocs; rel < relend; rel++)
5129 {
5130 unsigned long r_symndx;
5131 enum elf_ppc_reloc_type r_type;
5132 struct elf_link_hash_entry *h = NULL;
5133
5134 r_symndx = ELF32_R_SYM (rel->r_info);
5135 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 5136 {
6061a67d 5137 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
5138 struct ppc_elf_link_hash_entry *eh;
5139
5140 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5141 while (h->root.type == bfd_link_hash_indirect
5142 || h->root.type == bfd_link_hash_warning)
5143 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5144 eh = (struct ppc_elf_link_hash_entry *) h;
5145
5146 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5147 if (p->sec == sec)
5148 {
5149 /* Everything must go for SEC. */
5150 *pp = p->next;
5151 break;
5152 }
a876ecf9 5153 }
ee05f2fe 5154
25dbc73a 5155 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
5156 if (!htab->is_vxworks
5157 && h == NULL
5158 && local_got_refcounts != NULL
0e1862bb 5159 && (!bfd_link_pic (info)
de972ffa 5160 || is_branch_reloc (r_type)))
e054468f 5161 {
de972ffa
AM
5162 struct plt_entry **local_plt = (struct plt_entry **)
5163 (local_got_refcounts + symtab_hdr->sh_info);
5164 char *local_got_tls_masks = (char *)
5165 (local_plt + symtab_hdr->sh_info);
5166 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 5167 {
de972ffa 5168 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
5169 bfd_vma addend = 0;
5170 struct plt_entry *ent;
5171
0e1862bb 5172 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5173 addend = rel->r_addend;
5174 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
5175 if (ent->plt.refcount > 0)
5176 ent->plt.refcount -= 1;
5177 continue;
5178 }
5179 }
5180
25dbc73a 5181 switch (r_type)
ee05f2fe 5182 {
25dbc73a
AM
5183 case R_PPC_GOT_TLSLD16:
5184 case R_PPC_GOT_TLSLD16_LO:
5185 case R_PPC_GOT_TLSLD16_HI:
5186 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
5187 case R_PPC_GOT_TLSGD16:
5188 case R_PPC_GOT_TLSGD16_LO:
5189 case R_PPC_GOT_TLSGD16_HI:
5190 case R_PPC_GOT_TLSGD16_HA:
5191 case R_PPC_GOT_TPREL16:
5192 case R_PPC_GOT_TPREL16_LO:
5193 case R_PPC_GOT_TPREL16_HI:
5194 case R_PPC_GOT_TPREL16_HA:
5195 case R_PPC_GOT_DTPREL16:
5196 case R_PPC_GOT_DTPREL16_LO:
5197 case R_PPC_GOT_DTPREL16_HI:
5198 case R_PPC_GOT_DTPREL16_HA:
5199 case R_PPC_GOT16:
5200 case R_PPC_GOT16_LO:
5201 case R_PPC_GOT16_HI:
5202 case R_PPC_GOT16_HA:
5203 if (h != NULL)
ee05f2fe 5204 {
25dbc73a
AM
5205 if (h->got.refcount > 0)
5206 h->got.refcount--;
0e1862bb 5207 if (!bfd_link_pic (info))
91e21fb7
AM
5208 {
5209 struct plt_entry *ent;
5210
5211 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 5212 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
5213 ent->plt.refcount -= 1;
5214 }
ee05f2fe 5215 }
25dbc73a
AM
5216 else if (local_got_refcounts != NULL)
5217 {
5218 if (local_got_refcounts[r_symndx] > 0)
5219 local_got_refcounts[r_symndx]--;
5220 }
5221 break;
ee05f2fe 5222
25dbc73a
AM
5223 case R_PPC_REL24:
5224 case R_PPC_REL14:
5225 case R_PPC_REL14_BRTAKEN:
5226 case R_PPC_REL14_BRNTAKEN:
5227 case R_PPC_REL32:
3b36f7e6 5228 if (h == NULL || h == htab->elf.hgot)
25dbc73a 5229 break;
1a0670f3 5230 /* Fall through. */
ee05f2fe 5231
25dbc73a
AM
5232 case R_PPC_ADDR32:
5233 case R_PPC_ADDR24:
5234 case R_PPC_ADDR16:
5235 case R_PPC_ADDR16_LO:
5236 case R_PPC_ADDR16_HI:
5237 case R_PPC_ADDR16_HA:
5238 case R_PPC_ADDR14:
5239 case R_PPC_ADDR14_BRTAKEN:
5240 case R_PPC_ADDR14_BRNTAKEN:
5241 case R_PPC_UADDR32:
5242 case R_PPC_UADDR16:
0e1862bb 5243 if (bfd_link_pic (info))
87538722 5244 break;
1a0670f3 5245 /* Fall through. */
87538722 5246
25dbc73a
AM
5247 case R_PPC_PLT32:
5248 case R_PPC_PLTREL24:
87538722 5249 case R_PPC_PLTREL32:
25dbc73a
AM
5250 case R_PPC_PLT16_LO:
5251 case R_PPC_PLT16_HI:
5252 case R_PPC_PLT16_HA:
5253 if (h != NULL)
5254 {
a877a2b6
AM
5255 bfd_vma addend = 0;
5256 struct plt_entry *ent;
5257
0e1862bb 5258 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5259 addend = rel->r_addend;
5260 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5261 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5262 ent->plt.refcount -= 1;
25dbc73a
AM
5263 }
5264 break;
ee05f2fe 5265
25dbc73a
AM
5266 default:
5267 break;
5268 }
7fce784e 5269 }
7fce784e
AS
5270 return TRUE;
5271}
25dbc73a 5272\f
3a71aa26
AM
5273/* Set plt output section type, htab->tls_get_addr, and call the
5274 generic ELF tls_setup function. */
7fce784e 5275
25dbc73a 5276asection *
5446cbdf 5277ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5278{
25dbc73a 5279 struct ppc_elf_link_hash_table *htab;
7fce784e 5280
25dbc73a 5281 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5282 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5283 FALSE, FALSE, TRUE);
f01f1741
AM
5284 if (htab->plt_type != PLT_NEW)
5285 htab->params->no_tls_get_addr_opt = TRUE;
5286
5446cbdf 5287 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5288 {
5289 struct elf_link_hash_entry *opt, *tga;
5290 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5291 FALSE, FALSE, TRUE);
5292 if (opt != NULL
5293 && (opt->root.type == bfd_link_hash_defined
5294 || opt->root.type == bfd_link_hash_defweak))
5295 {
5296 /* If glibc supports an optimized __tls_get_addr call stub,
5297 signalled by the presence of __tls_get_addr_opt, and we'll
5298 be calling __tls_get_addr via a plt call stub, then
5299 make __tls_get_addr point to __tls_get_addr_opt. */
5300 tga = htab->tls_get_addr;
5301 if (htab->elf.dynamic_sections_created
5302 && tga != NULL
5303 && (tga->type == STT_FUNC
5304 || tga->needs_plt)
5305 && !(SYMBOL_CALLS_LOCAL (info, tga)
21d68fcd 5306 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
a7f2871e
AM
5307 {
5308 struct plt_entry *ent;
32af9f6e
AM
5309 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5310 if (ent->plt.refcount > 0)
5311 break;
5312 if (ent != NULL)
a7f2871e
AM
5313 {
5314 tga->root.type = bfd_link_hash_indirect;
5315 tga->root.u.i.link = &opt->root;
5316 ppc_elf_copy_indirect_symbol (info, opt, tga);
b531344c 5317 opt->mark = 1;
a7f2871e
AM
5318 if (opt->dynindx != -1)
5319 {
5320 /* Use __tls_get_addr_opt in dynamic relocations. */
5321 opt->dynindx = -1;
5322 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5323 opt->dynstr_index);
5324 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5325 return FALSE;
5326 }
5327 htab->tls_get_addr = opt;
5328 }
5329 }
5330 }
5331 else
5446cbdf 5332 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5333 }
4a3dc543 5334 if (htab->plt_type == PLT_NEW
ce558b89
AM
5335 && htab->elf.splt != NULL
5336 && htab->elf.splt->output_section != NULL)
d7128ce4 5337 {
ce558b89
AM
5338 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5339 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5340 }
5341
25dbc73a 5342 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5343}
5344
3a71aa26
AM
5345/* Return TRUE iff REL is a branch reloc with a global symbol matching
5346 HASH. */
5347
5348static bfd_boolean
5349branch_reloc_hash_match (const bfd *ibfd,
5350 const Elf_Internal_Rela *rel,
5351 const struct elf_link_hash_entry *hash)
5352{
5353 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5354 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5355 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5356
e054468f 5357 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5358 {
5359 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5360 struct elf_link_hash_entry *h;
5361
5362 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5363 while (h->root.type == bfd_link_hash_indirect
5364 || h->root.type == bfd_link_hash_warning)
5365 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5366 if (h == hash)
5367 return TRUE;
5368 }
5369 return FALSE;
5370}
5371
25dbc73a
AM
5372/* Run through all the TLS relocs looking for optimization
5373 opportunities. */
252b5132 5374
25dbc73a
AM
5375bfd_boolean
5376ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5377 struct bfd_link_info *info)
252b5132 5378{
7fce784e 5379 bfd *ibfd;
25dbc73a
AM
5380 asection *sec;
5381 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5382 int pass;
252b5132 5383
3cbc1e5e 5384 if (!bfd_link_executable (info))
25dbc73a 5385 return TRUE;
252b5132 5386
7619e7c7 5387 htab = ppc_elf_hash_table (info);
663a1470
AM
5388 if (htab == NULL)
5389 return FALSE;
5390
b7fcf6f6
AM
5391 /* Make two passes through the relocs. First time check that tls
5392 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5393 followed by such a call. If they are not, don't do any tls
5394 optimization. On the second pass twiddle tls_mask flags to
5395 notify relocate_section that optimization can be done, and
5396 adjust got and plt refcounts. */
b7fcf6f6 5397 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5398 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5399 {
5400 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5401 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5402 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5403
b7fcf6f6
AM
5404 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5405 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5406 {
5407 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5408 int expecting_tls_get_addr = 0;
252b5132 5409
b7fcf6f6
AM
5410 /* Read the relocations. */
5411 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5412 info->keep_memory);
5413 if (relstart == NULL)
5414 return FALSE;
7619e7c7 5415
b7fcf6f6
AM
5416 relend = relstart + sec->reloc_count;
5417 for (rel = relstart; rel < relend; rel++)
5418 {
5419 enum elf_ppc_reloc_type r_type;
5420 unsigned long r_symndx;
5421 struct elf_link_hash_entry *h = NULL;
5422 char *tls_mask;
5423 char tls_set, tls_clear;
5424 bfd_boolean is_local;
b7fcf6f6
AM
5425 bfd_signed_vma *got_count;
5426
5427 r_symndx = ELF32_R_SYM (rel->r_info);
5428 if (r_symndx >= symtab_hdr->sh_info)
5429 {
5430 struct elf_link_hash_entry **sym_hashes;
7fce784e 5431
b7fcf6f6
AM
5432 sym_hashes = elf_sym_hashes (ibfd);
5433 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5434 while (h->root.type == bfd_link_hash_indirect
5435 || h->root.type == bfd_link_hash_warning)
5436 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5437 }
7619e7c7 5438
b7fcf6f6
AM
5439 is_local = FALSE;
5440 if (h == NULL
5441 || !h->def_dynamic)
5442 is_local = TRUE;
7619e7c7 5443
b7fcf6f6 5444 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5445 /* If this section has old-style __tls_get_addr calls
5446 without marker relocs, then check that each
5447 __tls_get_addr call reloc is preceded by a reloc
5448 that conceivably belongs to the __tls_get_addr arg
5449 setup insn. If we don't find matching arg setup
5450 relocs, don't do any tls optimization. */
5451 if (pass == 0
5452 && sec->has_tls_get_addr_call
5453 && h != NULL
5454 && h == htab->tls_get_addr
5455 && !expecting_tls_get_addr
5456 && is_branch_reloc (r_type))
5457 {
25f53a85 5458 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5459 "TLS optimization disabled\n",
5460 ibfd, sec, rel->r_offset);
5461 if (elf_section_data (sec)->relocs != relstart)
5462 free (relstart);
5463 return TRUE;
5464 }
5465
5466 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5467 switch (r_type)
5468 {
5469 case R_PPC_GOT_TLSLD16:
5470 case R_PPC_GOT_TLSLD16_LO:
5471 expecting_tls_get_addr = 1;
1a0670f3 5472 /* Fall through. */
b7fcf6f6
AM
5473
5474 case R_PPC_GOT_TLSLD16_HI:
5475 case R_PPC_GOT_TLSLD16_HA:
5476 /* These relocs should never be against a symbol
5477 defined in a shared lib. Leave them alone if
5478 that turns out to be the case. */
5479 if (!is_local)
5480 continue;
5481
5482 /* LD -> LE */
5483 tls_set = 0;
5484 tls_clear = TLS_LD;
5485 break;
5486
5487 case R_PPC_GOT_TLSGD16:
5488 case R_PPC_GOT_TLSGD16_LO:
5489 expecting_tls_get_addr = 1;
1a0670f3 5490 /* Fall through. */
b7fcf6f6
AM
5491
5492 case R_PPC_GOT_TLSGD16_HI:
5493 case R_PPC_GOT_TLSGD16_HA:
5494 if (is_local)
5495 /* GD -> LE */
5496 tls_set = 0;
5497 else
5498 /* GD -> IE */
5499 tls_set = TLS_TLS | TLS_TPRELGD;
5500 tls_clear = TLS_GD;
5501 break;
5502
5503 case R_PPC_GOT_TPREL16:
5504 case R_PPC_GOT_TPREL16_LO:
5505 case R_PPC_GOT_TPREL16_HI:
5506 case R_PPC_GOT_TPREL16_HA:
5507 if (is_local)
5508 {
5509 /* IE -> LE */
5510 tls_set = 0;
5511 tls_clear = TLS_TPREL;
5512 break;
5513 }
5514 else
5515 continue;
5516
32af9f6e
AM
5517 case R_PPC_TLSGD:
5518 case R_PPC_TLSLD:
5519 expecting_tls_get_addr = 2;
5520 tls_set = 0;
5521 tls_clear = 0;
5522 break;
5523
b7fcf6f6 5524 default:
25dbc73a 5525 continue;
b7fcf6f6 5526 }
25dbc73a 5527
b7fcf6f6
AM
5528 if (pass == 0)
5529 {
727fc41e 5530 if (!expecting_tls_get_addr
32af9f6e
AM
5531 || (expecting_tls_get_addr == 1
5532 && !sec->has_tls_get_addr_call))
b7fcf6f6 5533 continue;
25dbc73a 5534
3a71aa26
AM
5535 if (rel + 1 < relend
5536 && branch_reloc_hash_match (ibfd, rel + 1,
5537 htab->tls_get_addr))
5538 continue;
25dbc73a 5539
b7fcf6f6
AM
5540 /* Uh oh, we didn't find the expected call. We
5541 could just mark this symbol to exclude it
5542 from tls optimization but it's safer to skip
663a1470 5543 the entire optimization. */
25f53a85 5544 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5545 "TLS optimization disabled\n"),
5546 ibfd, sec, rel->r_offset);
5547 if (elf_section_data (sec)->relocs != relstart)
5548 free (relstart);
5549 return TRUE;
b7fcf6f6 5550 }
25dbc73a 5551
32af9f6e
AM
5552 if (expecting_tls_get_addr)
5553 {
5554 struct plt_entry *ent;
5555 bfd_vma addend = 0;
5556
0e1862bb 5557 if (bfd_link_pic (info)
32af9f6e
AM
5558 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5559 addend = rel[1].r_addend;
5560 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5561 got2, addend);
5562 if (ent != NULL && ent->plt.refcount > 0)
5563 ent->plt.refcount -= 1;
5564
5565 if (expecting_tls_get_addr == 2)
5566 continue;
5567 }
5568
b7fcf6f6
AM
5569 if (h != NULL)
5570 {
5571 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5572 got_count = &h->got.refcount;
5573 }
5574 else
5575 {
b7fcf6f6 5576 bfd_signed_vma *lgot_refs;
e054468f 5577 struct plt_entry **local_plt;
b7fcf6f6 5578 char *lgot_masks;
25dbc73a 5579
b7fcf6f6
AM
5580 if (locsyms == NULL)
5581 {
5582 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5583 if (locsyms == NULL)
5584 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5585 symtab_hdr->sh_info,
5586 0, NULL, NULL, NULL);
5587 if (locsyms == NULL)
5588 {
5589 if (elf_section_data (sec)->relocs != relstart)
5590 free (relstart);
5591 return FALSE;
5592 }
5593 }
b7fcf6f6
AM
5594 lgot_refs = elf_local_got_refcounts (ibfd);
5595 if (lgot_refs == NULL)
5596 abort ();
e054468f
AM
5597 local_plt = (struct plt_entry **)
5598 (lgot_refs + symtab_hdr->sh_info);
5599 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5600 tls_mask = &lgot_masks[r_symndx];
5601 got_count = &lgot_refs[r_symndx];
5602 }
25dbc73a 5603
b7fcf6f6
AM
5604 if (tls_set == 0)
5605 {
5606 /* We managed to get rid of a got entry. */
5607 if (*got_count > 0)
5608 *got_count -= 1;
5609 }
25dbc73a 5610
b7fcf6f6
AM
5611 *tls_mask |= tls_set;
5612 *tls_mask &= ~tls_clear;
5613 }
25dbc73a 5614
b7fcf6f6
AM
5615 if (elf_section_data (sec)->relocs != relstart)
5616 free (relstart);
5617 }
5618
5619 if (locsyms != NULL
5620 && (symtab_hdr->contents != (unsigned char *) locsyms))
5621 {
5622 if (!info->keep_memory)
5623 free (locsyms);
5624 else
5625 symtab_hdr->contents = (unsigned char *) locsyms;
5626 }
5627 }
25dbc73a
AM
5628 return TRUE;
5629}
5630\f
625af618
AM
5631/* Return true if we have dynamic relocs that apply to read-only sections. */
5632
5633static bfd_boolean
5634readonly_dynrelocs (struct elf_link_hash_entry *h)
5635{
6061a67d 5636 struct elf_dyn_relocs *p;
625af618
AM
5637
5638 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5639 {
5640 asection *s = p->sec->output_section;
5641
5642 if (s != NULL
5643 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5644 == (SEC_READONLY | SEC_ALLOC)))
5645 return TRUE;
5646 }
5647 return FALSE;
5648}
5649
25dbc73a
AM
5650/* Adjust a symbol defined by a dynamic object and referenced by a
5651 regular object. The current definition is in some section of the
5652 dynamic object, but we're not including those sections. We have to
5653 change the definition to something the rest of the link can
5654 understand. */
7fce784e 5655
25dbc73a
AM
5656static bfd_boolean
5657ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5658 struct elf_link_hash_entry *h)
5659{
5660 struct ppc_elf_link_hash_table *htab;
5661 asection *s;
7fce784e 5662
25dbc73a
AM
5663#ifdef DEBUG
5664 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5665 h->root.root.string);
5666#endif
252b5132 5667
25dbc73a
AM
5668 /* Make sure we know what is going on here. */
5669 htab = ppc_elf_hash_table (info);
5670 BFD_ASSERT (htab->elf.dynobj != NULL
5671 && (h->needs_plt
91e21fb7 5672 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5673 || h->u.weakdef != NULL
5674 || (h->def_dynamic
5675 && h->ref_regular
5676 && !h->def_regular)));
252b5132 5677
25dbc73a
AM
5678 /* Deal with function syms. */
5679 if (h->type == STT_FUNC
e054468f 5680 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5681 || h->needs_plt)
5682 {
5683 /* Clear procedure linkage table information for any symbol that
5684 won't need a .plt entry. */
a6aa5195
AM
5685 struct plt_entry *ent;
5686 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5687 if (ent->plt.refcount > 0)
5688 break;
5689 if (ent == NULL
e054468f
AM
5690 || (h->type != STT_GNU_IFUNC
5691 && (SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 5692 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))))
252b5132 5693 {
25dbc73a 5694 /* A PLT entry is not required/allowed when:
252b5132 5695
25dbc73a
AM
5696 1. We are not using ld.so; because then the PLT entry
5697 can't be set up, so we can't use one. In this case,
5698 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5699
25dbc73a
AM
5700 2. GC has rendered the entry unused.
5701
5702 3. We know for certain that a call to this symbol
5703 will go to this object, or will remain undefined. */
a6aa5195 5704 h->plt.plist = NULL;
25dbc73a 5705 h->needs_plt = 0;
d1eca1e4 5706 h->pointer_equality_needed = 0;
25dbc73a 5707 }
625af618
AM
5708 else
5709 {
d1eca1e4
AM
5710 /* Taking a function's address in a read/write section
5711 doesn't require us to define the function symbol in the
1009ef28 5712 executable on a plt call stub. A dynamic reloc can
f0158f44
AM
5713 be used instead, giving better runtime performance.
5714 (Calls via that function pointer don't need to bounce
5715 through the plt call stub.) Similarly, use a dynamic
5716 reloc for a weak reference when possible, allowing the
5717 resolution of the symbol to be set at load time rather
5718 than link time. */
5719 if ((h->pointer_equality_needed
5720 || (!h->ref_regular_nonweak && h->non_got_ref))
1009ef28
AM
5721 && !htab->is_vxworks
5722 && !ppc_elf_hash_entry (h)->has_sda_refs
d1eca1e4
AM
5723 && !readonly_dynrelocs (h))
5724 {
5725 h->pointer_equality_needed = 0;
f0158f44
AM
5726 /* After adjust_dynamic_symbol, non_got_ref set in the
5727 non-pic case means that dyn_relocs for this symbol
5728 should be discarded. */
d1eca1e4
AM
5729 h->non_got_ref = 0;
5730 }
625af618 5731 }
d3e454b9 5732 h->protected_def = 0;
25dbc73a 5733 return TRUE;
252b5132 5734 }
25dbc73a 5735 else
a6aa5195 5736 h->plt.plist = NULL;
252b5132 5737
25dbc73a
AM
5738 /* If this is a weak symbol, and there is a real definition, the
5739 processor independent code will have arranged for us to see the
5740 real definition first, and we can just use the same value. */
5741 if (h->u.weakdef != NULL)
252b5132 5742 {
25dbc73a
AM
5743 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5744 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5745 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5746 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5747 if (ELIMINATE_COPY_RELOCS)
5748 h->non_got_ref = h->u.weakdef->non_got_ref;
5749 return TRUE;
5750 }
dc810e39 5751
25dbc73a
AM
5752 /* This is a reference to a symbol defined by a dynamic object which
5753 is not a function. */
252b5132 5754
25dbc73a
AM
5755 /* If we are creating a shared library, we must presume that the
5756 only references to the symbol are via the global offset table.
5757 For such cases we need not do anything here; the relocations will
5758 be handled correctly by relocate_section. */
0e1862bb 5759 if (bfd_link_pic (info))
d3e454b9
AM
5760 {
5761 h->protected_def = 0;
5762 return TRUE;
5763 }
252b5132 5764
25dbc73a
AM
5765 /* If there are no references to this symbol that do not use the
5766 GOT, we don't need to generate a copy reloc. */
5767 if (!h->non_got_ref)
d3e454b9
AM
5768 {
5769 h->protected_def = 0;
5770 return TRUE;
5771 }
5772
5773 /* Protected variables do not work with .dynbss. The copy in
5774 .dynbss won't be used by the shared library with the protected
5775 definition for the variable. Editing to PIC, or text relocations
5776 are preferable to an incorrect program. */
5777 if (h->protected_def)
5778 {
5779 if (ELIMINATE_COPY_RELOCS
5780 && ppc_elf_hash_entry (h)->has_addr16_ha
5781 && ppc_elf_hash_entry (h)->has_addr16_lo
5782 && htab->params->pic_fixup == 0
5783 && info->disable_target_specific_optimizations <= 1)
5784 htab->params->pic_fixup = 1;
5785 h->non_got_ref = 0;
5786 return TRUE;
5787 }
25dbc73a 5788
a127494f
AM
5789 /* If -z nocopyreloc was given, we won't generate them either. */
5790 if (info->nocopyreloc)
5791 {
5792 h->non_got_ref = 0;
5793 return TRUE;
5794 }
5795
cfd2c773
NS
5796 /* If we didn't find any dynamic relocs in read-only sections, then
5797 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5798 We can't do this if there are any small data relocations. This
5799 doesn't work on VxWorks, where we can not have dynamic
5800 relocations (other than copy and jump slot relocations) in an
5801 executable. */
4dc4a9a5 5802 if (ELIMINATE_COPY_RELOCS
cfd2c773 5803 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5804 && !htab->is_vxworks
5805 && !h->def_regular
5806 && !readonly_dynrelocs (h))
25dbc73a 5807 {
625af618
AM
5808 h->non_got_ref = 0;
5809 return TRUE;
252b5132
RH
5810 }
5811
25dbc73a
AM
5812 /* We must allocate the symbol in our .dynbss section, which will
5813 become part of the .bss section of the executable. There will be
5814 an entry for this symbol in the .dynsym section. The dynamic
5815 object will contain position independent code, so all references
5816 from the dynamic object to this symbol will go through the global
5817 offset table. The dynamic linker will use the .dynsym entry to
5818 determine the address it must put in the global offset table, so
5819 both the dynamic object and the regular object will refer to the
5820 same memory location for the variable.
5821
4dc4a9a5
DJ
5822 Of course, if the symbol is referenced using SDAREL relocs, we
5823 must instead allocate it in .sbss. */
25dbc73a 5824
4dc4a9a5 5825 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5826 s = htab->dynsbss;
5474d94f
AM
5827 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5828 s = htab->elf.sdynrelro;
25dbc73a 5829 else
9d19e4fd 5830 s = htab->elf.sdynbss;
25dbc73a
AM
5831 BFD_ASSERT (s != NULL);
5832
5833 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5834 copy the initial value out of the dynamic object and into the
5835 runtime process image. We need to remember the offset into the
5836 .rela.bss section we are going to use. */
1d7e9d18 5837 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5838 {
5839 asection *srel;
5840
4dc4a9a5 5841 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5842 srel = htab->relsbss;
5474d94f
AM
5843 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5844 srel = htab->elf.sreldynrelro;
25dbc73a 5845 else
9d19e4fd 5846 srel = htab->elf.srelbss;
25dbc73a
AM
5847 BFD_ASSERT (srel != NULL);
5848 srel->size += sizeof (Elf32_External_Rela);
5849 h->needs_copy = 1;
5850 }
7619e7c7 5851
6cabe1ea 5852 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5853}
5854\f
ac39eb42
AM
5855/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5856 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5857 specifying the addend on the plt relocation. For -fpic code, the sym
5858 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5859 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5860
5861static bfd_boolean
5862add_stub_sym (struct plt_entry *ent,
5863 struct elf_link_hash_entry *h,
ac39eb42 5864 struct bfd_link_info *info)
0ba07910
AM
5865{
5866 struct elf_link_hash_entry *sh;
5867 size_t len1, len2, len3;
5868 char *name;
ac39eb42
AM
5869 const char *stub;
5870 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5871
0e1862bb 5872 if (bfd_link_pic (info))
ac39eb42
AM
5873 stub = ".plt_pic32.";
5874 else
5875 stub = ".plt_call32.";
0ba07910
AM
5876
5877 len1 = strlen (h->root.root.string);
ac39eb42 5878 len2 = strlen (stub);
0ba07910
AM
5879 len3 = 0;
5880 if (ent->sec)
5881 len3 = strlen (ent->sec->name);
ac39eb42 5882 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5883 if (name == NULL)
5884 return FALSE;
5885 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5886 if (ent->sec)
5887 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5888 memcpy (name + 8 + len3, stub, len2);
5889 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5890 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5891 if (sh == NULL)
5892 return FALSE;
5893 if (sh->root.type == bfd_link_hash_new)
5894 {
5895 sh->root.type = bfd_link_hash_defined;
5896 sh->root.u.def.section = htab->glink;
5897 sh->root.u.def.value = ent->glink_offset;
5898 sh->ref_regular = 1;
5899 sh->def_regular = 1;
5900 sh->ref_regular_nonweak = 1;
5901 sh->forced_local = 1;
5902 sh->non_elf = 0;
2ec55de3 5903 sh->root.linker_def = 1;
0ba07910
AM
5904 }
5905 return TRUE;
5906}
5907
3b36f7e6
AM
5908/* Allocate NEED contiguous space in .got, and return the offset.
5909 Handles allocation of the got header when crossing 32k. */
5910
5911static bfd_vma
5912allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5913{
5914 bfd_vma where;
4a3dc543 5915 unsigned int max_before_header;
3b36f7e6 5916
4a3dc543 5917 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5918 {
ce558b89
AM
5919 where = htab->elf.sgot->size;
5920 htab->elf.sgot->size += need;
9d8504b1 5921 }
3b36f7e6
AM
5922 else
5923 {
4a3dc543
RS
5924 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5925 if (need <= htab->got_gap)
3b36f7e6 5926 {
4a3dc543
RS
5927 where = max_before_header - htab->got_gap;
5928 htab->got_gap -= need;
5929 }
5930 else
5931 {
ce558b89
AM
5932 if (htab->elf.sgot->size + need > max_before_header
5933 && htab->elf.sgot->size <= max_before_header)
4a3dc543 5934 {
ce558b89
AM
5935 htab->got_gap = max_before_header - htab->elf.sgot->size;
5936 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 5937 }
ce558b89
AM
5938 where = htab->elf.sgot->size;
5939 htab->elf.sgot->size += need;
3b36f7e6 5940 }
3b36f7e6
AM
5941 }
5942 return where;
5943}
5944
f0158f44
AM
5945/* If H is undefined weak, make it dynamic if that makes sense. */
5946
5947static bfd_boolean
5948ensure_undefweak_dynamic (struct bfd_link_info *info,
5949 struct elf_link_hash_entry *h)
5950{
5951 struct elf_link_hash_table *htab = elf_hash_table (info);
5952
5953 if (htab->dynamic_sections_created
954b63d4 5954 && info->dynamic_undefined_weak != 0
f0158f44
AM
5955 && h->root.type == bfd_link_hash_undefweak
5956 && h->dynindx == -1
5957 && !h->forced_local
5958 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
5959 return bfd_elf_link_record_dynamic_symbol (info, h);
5960 return TRUE;
5961}
5962
25dbc73a 5963/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5964
b34976b6 5965static bfd_boolean
25dbc73a 5966allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5967{
25dbc73a
AM
5968 struct bfd_link_info *info = inf;
5969 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5970 struct ppc_elf_link_hash_table *htab;
6061a67d 5971 struct elf_dyn_relocs *p;
f0158f44 5972 bfd_boolean dyn;
252b5132 5973
25dbc73a 5974 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5975 return TRUE;
252b5132 5976
7619e7c7 5977 htab = ppc_elf_hash_table (info);
25dbc73a 5978 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
5979 if (eh->elf.got.refcount > 0
5980 || (ELIMINATE_COPY_RELOCS
5981 && !eh->elf.def_regular
5982 && eh->elf.protected_def
5983 && eh->has_addr16_ha
5984 && eh->has_addr16_lo
5985 && htab->params->pic_fixup > 0))
25dbc73a 5986 {
d6e14abc
AM
5987 unsigned int need;
5988
f0158f44
AM
5989 /* Make sure this symbol is output as a dynamic symbol.
5990 Undefined weak syms won't yet be marked as dynamic. */
5991 if (!ensure_undefweak_dynamic (info, &eh->elf))
5992 return FALSE;
252b5132 5993
d6e14abc
AM
5994 need = 0;
5995 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5996 {
d6e14abc 5997 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5998 {
d6e14abc
AM
5999 if (!eh->elf.def_dynamic)
6000 /* We'll just use htab->tlsld_got.offset. This should
6001 always be the case. It's a little odd if we have
6002 a local dynamic reloc against a non-local symbol. */
6003 htab->tlsld_got.refcount += 1;
6004 else
3b36f7e6 6005 need += 8;
252b5132 6006 }
d6e14abc
AM
6007 if ((eh->tls_mask & TLS_GD) != 0)
6008 need += 8;
6009 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6010 need += 4;
6011 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 6012 need += 4;
d6e14abc
AM
6013 }
6014 else
6015 need += 4;
6016 if (need == 0)
6017 eh->elf.got.offset = (bfd_vma) -1;
6018 else
6019 {
3b36f7e6 6020 eh->elf.got.offset = allocate_got (htab, need);
0e1862bb 6021 if ((bfd_link_pic (info)
f0158f44
AM
6022 || (htab->elf.dynamic_sections_created
6023 && eh->elf.dynindx != -1
6024 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
21d68fcd 6025 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
252b5132 6026 {
ce558b89 6027 asection *rsec = htab->elf.srelgot;
0bed072f
AM
6028
6029 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6030 rsec = htab->elf.irelplt;
3b36f7e6
AM
6031 /* All the entries we allocated need relocs.
6032 Except LD only needs one. */
d6e14abc
AM
6033 if ((eh->tls_mask & TLS_LD) != 0
6034 && eh->elf.def_dynamic)
3b36f7e6 6035 need -= 4;
25f23106 6036 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 6037 }
25dbc73a
AM
6038 }
6039 }
6040 else
6041 eh->elf.got.offset = (bfd_vma) -1;
252b5132 6042
954b63d4
AM
6043 /* If no dynamic sections we can't have dynamic relocs, except for
6044 IFUNCs which are handled even in static executables. */
f0158f44
AM
6045 if (!htab->elf.dynamic_sections_created
6046 && h->type != STT_GNU_IFUNC)
6047 eh->dyn_relocs = NULL;
6048
6049 if (eh->dyn_relocs == NULL)
6050 ;
252b5132 6051
25dbc73a
AM
6052 /* In the shared -Bsymbolic case, discard space allocated for
6053 dynamic pc-relative relocs against symbols which turn out to be
6054 defined in regular objects. For the normal shared case, discard
6055 space for relocs that have become local due to symbol visibility
6056 changes. */
f0158f44 6057 else if (bfd_link_pic (info))
25dbc73a 6058 {
954b63d4
AM
6059 /* Discard relocs on undefined symbols that must be local. */
6060 if (h->root.type == bfd_link_hash_undefined
6061 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6062 eh->dyn_relocs = NULL;
6063
6064 /* Also discard relocs on undefined weak syms with non-default
6065 visibility, or when dynamic_undefined_weak says so. */
21d68fcd 6066 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
954b63d4
AM
6067 eh->dyn_relocs = NULL;
6068
25dbc73a 6069 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 6070 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
6071 generated via assembly. We want calls to protected symbols to
6072 resolve directly to the function rather than going via the plt.
6073 If people want function pointer comparisons to work as expected
6074 then they should avoid writing weird assembly. */
954b63d4 6075 else if (SYMBOL_CALLS_LOCAL (info, h))
25dbc73a 6076 {
6061a67d 6077 struct elf_dyn_relocs **pp;
25dbc73a
AM
6078
6079 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 6080 {
25dbc73a
AM
6081 p->count -= p->pc_count;
6082 p->pc_count = 0;
6083 if (p->count == 0)
6084 *pp = p->next;
6085 else
6086 pp = &p->next;
252b5132 6087 }
25dbc73a 6088 }
252b5132 6089
3348747a
NS
6090 if (htab->is_vxworks)
6091 {
6061a67d 6092 struct elf_dyn_relocs **pp;
3348747a
NS
6093
6094 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6095 {
6096 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6097 *pp = p->next;
6098 else
6099 pp = &p->next;
6100 }
6101 }
6102
954b63d4 6103 if (eh->dyn_relocs != NULL)
25dbc73a 6104 {
dfbb6ac9
AM
6105 /* Make sure undefined weak symbols are output as a dynamic
6106 symbol in PIEs. */
954b63d4 6107 if (!ensure_undefweak_dynamic (info, h))
f0158f44 6108 return FALSE;
25dbc73a
AM
6109 }
6110 }
6111 else if (ELIMINATE_COPY_RELOCS)
6112 {
f0158f44 6113 /* For the non-pic case, discard space for relocs against
25dbc73a
AM
6114 symbols which turn out to need copy relocs or are not
6115 dynamic. */
25dbc73a 6116 if (!h->non_got_ref
d3e454b9
AM
6117 && !h->def_regular
6118 && !(h->protected_def
6119 && eh->has_addr16_ha
6120 && eh->has_addr16_lo
6121 && htab->params->pic_fixup > 0))
25dbc73a
AM
6122 {
6123 /* Make sure this symbol is output as a dynamic symbol.
6124 Undefined weak syms won't yet be marked as dynamic. */
f0158f44
AM
6125 if (!ensure_undefweak_dynamic (info, h))
6126 return FALSE;
7619e7c7 6127
f0158f44
AM
6128 if (h->dynindx == -1)
6129 eh->dyn_relocs = NULL;
25dbc73a 6130 }
f0158f44
AM
6131 else
6132 eh->dyn_relocs = NULL;
25dbc73a 6133 }
252b5132 6134
f0158f44 6135 /* Allocate space. */
25dbc73a
AM
6136 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6137 {
6138 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6139 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6140 sreloc = htab->elf.irelplt;
25dbc73a
AM
6141 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6142 }
252b5132 6143
f0158f44
AM
6144 /* Handle PLT relocs. Done last, after dynindx has settled. */
6145 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
6146 if (dyn || h->type == STT_GNU_IFUNC)
6147 {
6148 struct plt_entry *ent;
6149 bfd_boolean doneone = FALSE;
6150 bfd_vma plt_offset = 0, glink_offset = 0;
6151
6152 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6153 if (ent->plt.refcount > 0)
6154 {
6155 asection *s = htab->elf.splt;
6156
6157 if (!dyn)
6158 s = htab->elf.iplt;
6159
6160 if (htab->plt_type == PLT_NEW || !dyn)
6161 {
6162 if (!doneone)
6163 {
6164 plt_offset = s->size;
6165 s->size += 4;
6166 }
6167 ent->plt.offset = plt_offset;
6168
6169 s = htab->glink;
6170 if (!doneone || bfd_link_pic (info))
6171 {
6172 glink_offset = s->size;
6173 s->size += GLINK_ENTRY_SIZE;
6174 if (h == htab->tls_get_addr
6175 && !htab->params->no_tls_get_addr_opt)
6176 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
6177 }
6178 if (!doneone
6179 && !bfd_link_pic (info)
6180 && h->def_dynamic
6181 && !h->def_regular)
6182 {
6183 h->root.u.def.section = s;
6184 h->root.u.def.value = glink_offset;
6185 }
6186 ent->glink_offset = glink_offset;
6187
6188 if (htab->params->emit_stub_syms
6189 && !add_stub_sym (ent, h, info))
6190 return FALSE;
6191 }
6192 else
6193 {
6194 if (!doneone)
6195 {
6196 /* If this is the first .plt entry, make room
6197 for the special first entry. */
6198 if (s->size == 0)
6199 s->size += htab->plt_initial_entry_size;
6200
6201 /* The PowerPC PLT is actually composed of two
6202 parts, the first part is 2 words (for a load
6203 and a jump), and then there is a remaining
6204 word available at the end. */
6205 plt_offset = (htab->plt_initial_entry_size
6206 + (htab->plt_slot_size
6207 * ((s->size
6208 - htab->plt_initial_entry_size)
6209 / htab->plt_entry_size)));
6210
6211 /* If this symbol is not defined in a regular
6212 file, and we are not generating a shared
6213 library, then set the symbol to this location
6214 in the .plt. This is to avoid text
6215 relocations, and is required to make
6216 function pointers compare as equal between
6217 the normal executable and the shared library. */
6218 if (! bfd_link_pic (info)
6219 && h->def_dynamic
6220 && !h->def_regular)
6221 {
6222 h->root.u.def.section = s;
6223 h->root.u.def.value = plt_offset;
6224 }
6225
6226 /* Make room for this entry. */
6227 s->size += htab->plt_entry_size;
6228 /* After the 8192nd entry, room for two entries
6229 is allocated. */
6230 if (htab->plt_type == PLT_OLD
6231 && (s->size - htab->plt_initial_entry_size)
6232 / htab->plt_entry_size
6233 > PLT_NUM_SINGLE_ENTRIES)
6234 s->size += htab->plt_entry_size;
6235 }
6236 ent->plt.offset = plt_offset;
6237 }
6238
6239 /* We also need to make an entry in the .rela.plt section. */
6240 if (!doneone)
6241 {
6242 if (!dyn)
6243 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
6244 else
6245 {
6246 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6247
6248 if (htab->plt_type == PLT_VXWORKS)
6249 {
6250 /* Allocate space for the unloaded relocations. */
6251 if (!bfd_link_pic (info)
6252 && htab->elf.dynamic_sections_created)
6253 {
6254 if (ent->plt.offset
6255 == (bfd_vma) htab->plt_initial_entry_size)
6256 {
6257 htab->srelplt2->size
6258 += (sizeof (Elf32_External_Rela)
6259 * VXWORKS_PLTRESOLVE_RELOCS);
6260 }
6261
6262 htab->srelplt2->size
6263 += (sizeof (Elf32_External_Rela)
6264 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6265 }
6266
6267 /* Every PLT entry has an associated GOT entry in
6268 .got.plt. */
6269 htab->elf.sgotplt->size += 4;
6270 }
6271 }
6272 doneone = TRUE;
6273 }
6274 }
6275 else
6276 ent->plt.offset = (bfd_vma) -1;
6277
6278 if (!doneone)
6279 {
6280 h->plt.plist = NULL;
6281 h->needs_plt = 0;
6282 }
6283 }
6284 else
6285 {
6286 h->plt.plist = NULL;
6287 h->needs_plt = 0;
6288 }
6289
25dbc73a
AM
6290 return TRUE;
6291}
7619e7c7 6292
625af618
AM
6293/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6294 read-only sections. */
7619e7c7 6295
25dbc73a 6296static bfd_boolean
625af618 6297maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 6298{
25dbc73a
AM
6299 if (h->root.type == bfd_link_hash_indirect)
6300 return TRUE;
252b5132 6301
625af618 6302 if (readonly_dynrelocs (h))
25dbc73a 6303 {
625af618 6304 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 6305
625af618
AM
6306 /* Not an error, just cut short the traversal. */
6307 return FALSE;
25dbc73a
AM
6308 }
6309 return TRUE;
6310}
6311
6177242a
AM
6312static const unsigned char glink_eh_frame_cie[] =
6313{
6314 0, 0, 0, 16, /* length. */
6315 0, 0, 0, 0, /* id. */
6316 1, /* CIE version. */
6317 'z', 'R', 0, /* Augmentation string. */
6318 4, /* Code alignment. */
6319 0x7c, /* Data alignment. */
6320 65, /* RA reg. */
6321 1, /* Augmentation size. */
6322 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6323 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6324};
6325
25dbc73a
AM
6326/* Set the sizes of the dynamic sections. */
6327
6328static bfd_boolean
93d1b056 6329ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6330 struct bfd_link_info *info)
6331{
6332 struct ppc_elf_link_hash_table *htab;
6333 asection *s;
6334 bfd_boolean relocs;
6335 bfd *ibfd;
7fce784e 6336
252b5132 6337#ifdef DEBUG
25dbc73a 6338 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6339#endif
252b5132 6340
25dbc73a
AM
6341 htab = ppc_elf_hash_table (info);
6342 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6343
25dbc73a
AM
6344 if (elf_hash_table (info)->dynamic_sections_created)
6345 {
6346 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6347 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6348 {
3d4d4302 6349 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6350 BFD_ASSERT (s != NULL);
6351 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6352 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6353 }
6354 }
252b5132 6355
4a3dc543 6356 if (htab->plt_type == PLT_OLD)
d7128ce4 6357 htab->got_header_size = 16;
4a3dc543 6358 else if (htab->plt_type == PLT_NEW)
d7128ce4 6359 htab->got_header_size = 12;
252b5132 6360
25dbc73a
AM
6361 /* Set up .got offsets for local syms, and space for local dynamic
6362 relocs. */
c72f2fb2 6363 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6364 {
6365 bfd_signed_vma *local_got;
6366 bfd_signed_vma *end_local_got;
e054468f
AM
6367 struct plt_entry **local_plt;
6368 struct plt_entry **end_local_plt;
25dbc73a
AM
6369 char *lgot_masks;
6370 bfd_size_type locsymcount;
6371 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6372
0c8d6e5c 6373 if (!is_ppc_elf (ibfd))
25dbc73a 6374 continue;
7fce784e 6375
25dbc73a
AM
6376 for (s = ibfd->sections; s != NULL; s = s->next)
6377 {
f95f8542 6378 struct ppc_dyn_relocs *p;
252b5132 6379
f95f8542 6380 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6381 elf_section_data (s)->local_dynrel);
6382 p != NULL;
6383 p = p->next)
6384 {
6385 if (!bfd_is_abs_section (p->sec)
6386 && bfd_is_abs_section (p->sec->output_section))
6387 {
6388 /* Input section has been discarded, either because
6389 it is a copy of a linkonce section or due to
6390 linker script /DISCARD/, so we'll be discarding
6391 the relocs too. */
7fce784e 6392 }
3348747a
NS
6393 else if (htab->is_vxworks
6394 && strcmp (p->sec->output_section->name,
6395 ".tls_vars") == 0)
6396 {
6397 /* Relocations in vxworks .tls_vars sections are
6398 handled specially by the loader. */
6399 }
25dbc73a 6400 else if (p->count != 0)
7fce784e 6401 {
25f23106 6402 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6403 if (p->ifunc)
ce558b89 6404 sreloc = htab->elf.irelplt;
25f23106 6405 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6406 if ((p->sec->output_section->flags
6407 & (SEC_READONLY | SEC_ALLOC))
6408 == (SEC_READONLY | SEC_ALLOC))
6409 info->flags |= DF_TEXTREL;
7fce784e 6410 }
252b5132 6411 }
252b5132 6412 }
252b5132 6413
25dbc73a
AM
6414 local_got = elf_local_got_refcounts (ibfd);
6415 if (!local_got)
6416 continue;
252b5132 6417
0ffa91dd 6418 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6419 locsymcount = symtab_hdr->sh_info;
6420 end_local_got = local_got + locsymcount;
e054468f
AM
6421 local_plt = (struct plt_entry **) end_local_got;
6422 end_local_plt = local_plt + locsymcount;
6423 lgot_masks = (char *) end_local_plt;
91d6fa6a 6424
25dbc73a
AM
6425 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6426 if (*local_got > 0)
6427 {
d6e14abc
AM
6428 unsigned int need = 0;
6429 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6430 {
d6e14abc
AM
6431 if ((*lgot_masks & TLS_GD) != 0)
6432 need += 8;
6433 if ((*lgot_masks & TLS_LD) != 0)
6434 htab->tlsld_got.refcount += 1;
6435 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6436 need += 4;
6437 if ((*lgot_masks & TLS_DTPREL) != 0)
6438 need += 4;
25dbc73a 6439 }
d6e14abc
AM
6440 else
6441 need += 4;
6442 if (need == 0)
6443 *local_got = (bfd_vma) -1;
25dbc73a
AM
6444 else
6445 {
3b36f7e6 6446 *local_got = allocate_got (htab, need);
0e1862bb 6447 if (bfd_link_pic (info))
0bed072f 6448 {
ce558b89 6449 asection *srel = htab->elf.srelgot;
0bed072f 6450 if ((*lgot_masks & PLT_IFUNC) != 0)
ce558b89 6451 srel = htab->elf.irelplt;
0bed072f
AM
6452 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6453 }
25dbc73a
AM
6454 }
6455 }
6456 else
6457 *local_got = (bfd_vma) -1;
e054468f
AM
6458
6459 if (htab->is_vxworks)
6460 continue;
6461
6462 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6463 for (; local_plt < end_local_plt; ++local_plt)
6464 {
6465 struct plt_entry *ent;
6466 bfd_boolean doneone = FALSE;
6467 bfd_vma plt_offset = 0, glink_offset = 0;
6468
6469 for (ent = *local_plt; ent != NULL; ent = ent->next)
6470 if (ent->plt.refcount > 0)
6471 {
ce558b89 6472 s = htab->elf.iplt;
e054468f
AM
6473
6474 if (!doneone)
6475 {
6476 plt_offset = s->size;
6477 s->size += 4;
6478 }
6479 ent->plt.offset = plt_offset;
6480
6481 s = htab->glink;
0e1862bb 6482 if (!doneone || bfd_link_pic (info))
e054468f
AM
6483 {
6484 glink_offset = s->size;
6485 s->size += GLINK_ENTRY_SIZE;
6486 }
6487 ent->glink_offset = glink_offset;
6488
6489 if (!doneone)
6490 {
ce558b89 6491 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6492 doneone = TRUE;
6493 }
6494 }
6495 else
6496 ent->plt.offset = (bfd_vma) -1;
6497 }
25dbc73a 6498 }
252b5132 6499
b7fcf6f6
AM
6500 /* Allocate space for global sym dynamic relocs. */
6501 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6502
3b36f7e6
AM
6503 if (htab->tlsld_got.refcount > 0)
6504 {
6505 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6506 if (bfd_link_pic (info))
ce558b89 6507 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6508 }
6509 else
6510 htab->tlsld_got.offset = (bfd_vma) -1;
6511
ce558b89 6512 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6513 {
6514 unsigned int g_o_t = 32768;
6515
4d962050
AM
6516 /* If we haven't allocated the header, do so now. When we get here,
6517 for old plt/got the got size will be 0 to 32764 (not allocated),
6518 or 32780 to 65536 (header allocated). For new plt/got, the
6519 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6520 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6521 {
ce558b89 6522 g_o_t = htab->elf.sgot->size;
4a3dc543 6523 if (htab->plt_type == PLT_OLD)
4d962050 6524 g_o_t += 4;
ce558b89 6525 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6526 }
3b36f7e6
AM
6527
6528 htab->elf.hgot->root.u.def.value = g_o_t;
6529 }
0e1862bb 6530 if (bfd_link_pic (info))
bd6c6e2b
AM
6531 {
6532 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6533
6534 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6535 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6536 }
15bfcc77
AM
6537 if (info->emitrelocations)
6538 {
6539 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6540
6541 if (sda != NULL && sda->ref_regular)
6542 sda->root.u.def.section->flags |= SEC_KEEP;
6543 sda = htab->sdata[1].sym;
6544 if (sda != NULL && sda->ref_regular)
6545 sda->root.u.def.section->flags |= SEC_KEEP;
6546 }
3b36f7e6 6547
e054468f
AM
6548 if (htab->glink != NULL
6549 && htab->glink->size != 0
6550 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6551 {
6552 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6553 /* Space for the branch table. ??? We don't need entries for
6554 non-dynamic symbols in this table. This case can arise with
6555 static ifuncs or forced local ifuncs. */
86b9da88
AM
6556 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6557 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6558 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6559 ? 63 : 15);
d7128ce4 6560 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6561
5446cbdf 6562 if (htab->params->emit_stub_syms)
0ba07910
AM
6563 {
6564 struct elf_link_hash_entry *sh;
6565 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6566 TRUE, FALSE, FALSE);
6567 if (sh == NULL)
6568 return FALSE;
6569 if (sh->root.type == bfd_link_hash_new)
6570 {
6571 sh->root.type = bfd_link_hash_defined;
6572 sh->root.u.def.section = htab->glink;
6573 sh->root.u.def.value = htab->glink_pltresolve;
6574 sh->ref_regular = 1;
6575 sh->def_regular = 1;
6576 sh->ref_regular_nonweak = 1;
6577 sh->forced_local = 1;
6578 sh->non_elf = 0;
2ec55de3 6579 sh->root.linker_def = 1;
0ba07910
AM
6580 }
6581 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6582 TRUE, FALSE, FALSE);
6583 if (sh == NULL)
6584 return FALSE;
6585 if (sh->root.type == bfd_link_hash_new)
6586 {
6587 sh->root.type = bfd_link_hash_defined;
6588 sh->root.u.def.section = htab->glink;
6589 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6590 sh->ref_regular = 1;
6591 sh->def_regular = 1;
6592 sh->ref_regular_nonweak = 1;
6593 sh->forced_local = 1;
6594 sh->non_elf = 0;
2ec55de3 6595 sh->root.linker_def = 1;
0ba07910
AM
6596 }
6597 }
d7128ce4
AM
6598 }
6599
6177242a
AM
6600 if (htab->glink != NULL
6601 && htab->glink->size != 0
6602 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6603 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6604 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6605 {
6606 s = htab->glink_eh_frame;
6607 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6608 if (bfd_link_pic (info))
6177242a
AM
6609 {
6610 s->size += 4;
6611 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6612 s->size += 4;
6613 }
6614 }
6615
25dbc73a
AM
6616 /* We've now determined the sizes of the various dynamic sections.
6617 Allocate memory for them. */
6618 relocs = FALSE;
6619 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6620 {
9d8504b1
PB
6621 bfd_boolean strip_section = TRUE;
6622
25dbc73a
AM
6623 if ((s->flags & SEC_LINKER_CREATED) == 0)
6624 continue;
252b5132 6625
ce558b89
AM
6626 if (s == htab->elf.splt
6627 || s == htab->elf.sgot)
25dbc73a 6628 {
9d8504b1
PB
6629 /* We'd like to strip these sections if they aren't needed, but if
6630 we've exported dynamic symbols from them we must leave them.
6631 It's too late to tell BFD to get rid of the symbols. */
e054468f 6632 if (htab->elf.hplt != NULL)
9d8504b1 6633 strip_section = FALSE;
25dbc73a
AM
6634 /* Strip this section if we don't need it; see the
6635 comment below. */
6636 }
ce558b89 6637 else if (s == htab->elf.iplt
e054468f 6638 || s == htab->glink
6177242a 6639 || s == htab->glink_eh_frame
ce558b89 6640 || s == htab->elf.sgotplt
e054468f 6641 || s == htab->sbss
9d19e4fd 6642 || s == htab->elf.sdynbss
5474d94f 6643 || s == htab->elf.sdynrelro
15bfcc77 6644 || s == htab->dynsbss)
25dbc73a 6645 {
c9a2f333 6646 /* Strip these too. */
25dbc73a 6647 }
15bfcc77
AM
6648 else if (s == htab->sdata[0].section
6649 || s == htab->sdata[1].section)
6650 {
6651 strip_section = (s->flags & SEC_KEEP) == 0;
6652 }
a0f49396
NC
6653 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6654 ".rela"))
25dbc73a 6655 {
c456f082 6656 if (s->size != 0)
25dbc73a
AM
6657 {
6658 /* Remember whether there are any relocation sections. */
6659 relocs = TRUE;
252b5132 6660
25dbc73a
AM
6661 /* We use the reloc_count field as a counter if we need
6662 to copy relocs into the output file. */
6663 s->reloc_count = 0;
252b5132
RH
6664 }
6665 }
25dbc73a
AM
6666 else
6667 {
6668 /* It's not one of our sections, so don't allocate space. */
6669 continue;
6670 }
252b5132 6671
9d8504b1 6672 if (s->size == 0 && strip_section)
25dbc73a 6673 {
c456f082
AM
6674 /* If we don't need this section, strip it from the
6675 output file. This is mostly to handle .rela.bss and
6676 .rela.plt. We must create both sections in
6677 create_dynamic_sections, because they must be created
6678 before the linker maps input sections to output
6679 sections. The linker does that before
6680 adjust_dynamic_symbol is called, and it is that
6681 function which decides whether anything needs to go
6682 into these sections. */
8423293d 6683 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6684 continue;
6685 }
7fce784e 6686
d7128ce4 6687 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6688 continue;
6689
25dbc73a
AM
6690 /* Allocate memory for the section contents. */
6691 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6692 if (s->contents == NULL)
6693 return FALSE;
6694 }
252b5132 6695
25dbc73a 6696 if (htab->elf.dynamic_sections_created)
7619e7c7 6697 {
25dbc73a
AM
6698 /* Add some entries to the .dynamic section. We fill in the
6699 values later, in ppc_elf_finish_dynamic_sections, but we
6700 must add the entries now so that we get the correct size for
6701 the .dynamic section. The DT_DEBUG entry is filled in by the
6702 dynamic linker and used by the debugger. */
6703#define add_dynamic_entry(TAG, VAL) \
6704 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6705
0e1862bb 6706 if (bfd_link_executable (info))
7619e7c7 6707 {
25dbc73a
AM
6708 if (!add_dynamic_entry (DT_DEBUG, 0))
6709 return FALSE;
7619e7c7
AM
6710 }
6711
ce558b89 6712 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 6713 {
25dbc73a
AM
6714 if (!add_dynamic_entry (DT_PLTGOT, 0)
6715 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6716 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6717 || !add_dynamic_entry (DT_JMPREL, 0))
6718 return FALSE;
6719 }
7619e7c7 6720
c7e17e05
AM
6721 if (htab->plt_type == PLT_NEW
6722 && htab->glink != NULL
6723 && htab->glink->size != 0)
d7128ce4 6724 {
1fe44d79 6725 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6726 return FALSE;
5446cbdf 6727 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6728 && htab->tls_get_addr != NULL
6729 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6730 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6731 return FALSE;
d7128ce4
AM
6732 }
6733
25dbc73a
AM
6734 if (relocs)
6735 {
6736 if (!add_dynamic_entry (DT_RELA, 0)
6737 || !add_dynamic_entry (DT_RELASZ, 0)
6738 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6739 return FALSE;
6740 }
7619e7c7 6741
25dbc73a
AM
6742 /* If any dynamic relocs apply to a read-only section, then we
6743 need a DT_TEXTREL entry. */
6744 if ((info->flags & DF_TEXTREL) == 0)
625af618 6745 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6746 info);
7619e7c7 6747
25dbc73a
AM
6748 if ((info->flags & DF_TEXTREL) != 0)
6749 {
6750 if (!add_dynamic_entry (DT_TEXTREL, 0))
6751 return FALSE;
7619e7c7 6752 }
7a2b07ff
NS
6753 if (htab->is_vxworks
6754 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6755 return FALSE;
6756 }
25dbc73a
AM
6757#undef add_dynamic_entry
6758
7e01508c
AM
6759 if (htab->glink_eh_frame != NULL
6760 && htab->glink_eh_frame->contents != NULL)
6761 {
6762 unsigned char *p = htab->glink_eh_frame->contents;
6763 bfd_vma val;
6764
6765 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6766 /* CIE length (rewrite in case little-endian). */
6767 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6768 p += sizeof (glink_eh_frame_cie);
6769 /* FDE length. */
6770 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6771 bfd_put_32 (htab->elf.dynobj, val, p);
6772 p += 4;
6773 /* CIE pointer. */
6774 val = p - htab->glink_eh_frame->contents;
6775 bfd_put_32 (htab->elf.dynobj, val, p);
6776 p += 4;
6777 /* Offset to .glink. Set later. */
6778 p += 4;
6779 /* .glink size. */
6780 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6781 p += 4;
6782 /* Augmentation. */
6783 p += 1;
6784
0e1862bb 6785 if (bfd_link_pic (info)
7e01508c
AM
6786 && htab->elf.dynamic_sections_created)
6787 {
6788 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6789 if (adv < 64)
6790 *p++ = DW_CFA_advance_loc + adv;
6791 else if (adv < 256)
6792 {
6793 *p++ = DW_CFA_advance_loc1;
6794 *p++ = adv;
6795 }
6796 else if (adv < 65536)
6797 {
6798 *p++ = DW_CFA_advance_loc2;
6799 bfd_put_16 (htab->elf.dynobj, adv, p);
6800 p += 2;
6801 }
6802 else
6803 {
6804 *p++ = DW_CFA_advance_loc4;
6805 bfd_put_32 (htab->elf.dynobj, adv, p);
6806 p += 4;
6807 }
6808 *p++ = DW_CFA_register;
6809 *p++ = 65;
6810 p++;
6811 *p++ = DW_CFA_advance_loc + 4;
6812 *p++ = DW_CFA_restore_extended;
6813 *p++ = 65;
6814 }
6815 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6816 == htab->glink_eh_frame->size);
6817 }
6818
7619e7c7
AM
6819 return TRUE;
6820}
0eb4a168 6821
93d1b056
AM
6822/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6823 if it looks like nothing is using them. */
6824
6825static void
6826maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6827{
6828 struct elf_link_hash_entry *sda = lsect->sym;
6829
6830 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6831 {
6832 asection *s;
6833
6834 s = bfd_get_section_by_name (output_bfd, lsect->name);
6835 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6836 {
6837 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6838 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6839 {
6840 sda->def_regular = 0;
6841 /* This is somewhat magic. See elf_link_output_extsym. */
6842 sda->ref_dynamic = 1;
6843 sda->forced_local = 0;
6844 }
6845 }
6846 }
6847}
6848
6849void
6850ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6851{
6852 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6853
6854 if (htab != NULL)
6855 {
6856 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6857 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6858 }
6859}
6860
6861
0eb4a168
AM
6862/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6863
6864static bfd_boolean
6865ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6866{
6867 if (h->plt.plist != NULL
6868 && !h->def_regular
6869 && (!h->pointer_equality_needed
6870 || !h->ref_regular_nonweak))
6871 return FALSE;
6872
6873 return _bfd_elf_hash_symbol (h);
6874}
25dbc73a
AM
6875\f
6876#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6877
01017ef8
NS
6878/* Relaxation trampolines. r12 is available for clobbering (r11, is
6879 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6880static const int shared_stub_entry[] =
6881 {
6882 0x7c0802a6, /* mflr 0 */
6883 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6884 0x7d8802a6, /* mflr 12 */
6885 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6886 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6887 0x7c0803a6, /* mtlr 0 */
01017ef8 6888 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6889 0x4e800420, /* bctr */
6890 };
6891
6892static const int stub_entry[] =
6893 {
01017ef8
NS
6894 0x3d800000, /* lis 12,xxx@ha */
6895 0x398c0000, /* addi 12,12,xxx@l */
6896 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6897 0x4e800420, /* bctr */
6898 };
6899
5446cbdf
AM
6900struct ppc_elf_relax_info
6901{
6902 unsigned int workaround_size;
d3e454b9 6903 unsigned int picfixup_size;
5446cbdf
AM
6904};
6905
6906/* This function implements long branch trampolines, and the ppc476
6907 icache bug workaround. Any section needing trampolines or patch
6908 space for the workaround has its size extended so that we can
53291d1f 6909 add trampolines at the end of the section. */
5446cbdf 6910
25dbc73a
AM
6911static bfd_boolean
6912ppc_elf_relax_section (bfd *abfd,
6913 asection *isec,
6914 struct bfd_link_info *link_info,
6915 bfd_boolean *again)
6916{
d3e454b9 6917 struct one_branch_fixup
25dbc73a 6918 {
d3e454b9 6919 struct one_branch_fixup *next;
25dbc73a 6920 asection *tsec;
01017ef8
NS
6921 /* Final link, can use the symbol offset. For a
6922 relocatable link we use the symbol's index. */
25dbc73a
AM
6923 bfd_vma toff;
6924 bfd_vma trampoff;
6925 };
7619e7c7 6926
25dbc73a
AM
6927 Elf_Internal_Shdr *symtab_hdr;
6928 bfd_byte *contents = NULL;
6929 Elf_Internal_Sym *isymbuf = NULL;
6930 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6931 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6932 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6933 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6934 unsigned changes = 0;
5446cbdf 6935 bfd_boolean workaround_change;
d7128ce4 6936 struct ppc_elf_link_hash_table *htab;
d3e454b9 6937 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6938 asection *got2;
50248c89 6939 bfd_boolean maybe_pasted;
7619e7c7 6940
25dbc73a 6941 *again = FALSE;
7619e7c7 6942
5446cbdf 6943 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6944 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6945 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6946 || (isec->flags & SEC_LINKER_CREATED) != 0
6947 || isec->size < 4)
25dbc73a 6948 return TRUE;
7619e7c7 6949
c8a1f254
NS
6950 /* We cannot represent the required PIC relocs in the output, so don't
6951 do anything. The linker doesn't support mixing -shared and -r
6952 anyway. */
0e1862bb 6953 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6954 return TRUE;
5b914448 6955
5446cbdf
AM
6956 htab = ppc_elf_hash_table (link_info);
6957 if (htab == NULL)
6958 return TRUE;
6959
6960 isec->size = (isec->size + 3) & -4;
6961 if (isec->rawsize == 0)
6962 isec->rawsize = isec->size;
6963 trampbase = isec->size;
6964
53291d1f
AM
6965 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6966 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6967 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6968
d3e454b9
AM
6969 if (htab->params->ppc476_workaround
6970 || htab->params->pic_fixup > 0)
5446cbdf
AM
6971 {
6972 if (elf_section_data (isec)->sec_info == NULL)
6973 {
5446cbdf
AM
6974 elf_section_data (isec)->sec_info
6975 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6976 if (elf_section_data (isec)->sec_info == NULL)
6977 return FALSE;
6978 }
6979 relax_info = elf_section_data (isec)->sec_info;
6980 trampbase -= relax_info->workaround_size;
6981 }
6982
50248c89
AM
6983 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6984 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6985 /* Space for a branch around any trampolines. */
5446cbdf
AM
6986 trampoff = trampbase;
6987 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6988 trampoff += 4;
7619e7c7 6989
0ffa91dd 6990 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6991 picfixup_size = 0;
6992 if (htab->params->branch_trampolines
6993 || htab->params->pic_fixup > 0)
7619e7c7 6994 {
5446cbdf
AM
6995 /* Get a copy of the native relocations. */
6996 if (isec->reloc_count != 0)
25dbc73a 6997 {
5446cbdf
AM
6998 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6999 link_info->keep_memory);
7000 if (internal_relocs == NULL)
7001 goto error_return;
25dbc73a 7002 }
7619e7c7 7003
5446cbdf
AM
7004 got2 = bfd_get_section_by_name (abfd, ".got2");
7005
7006 irelend = internal_relocs + isec->reloc_count;
7007 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 7008 {
5446cbdf
AM
7009 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
7010 bfd_vma toff, roff;
7011 asection *tsec;
d3e454b9 7012 struct one_branch_fixup *f;
5446cbdf 7013 size_t insn_offset = 0;
d3e454b9 7014 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
7015 bfd_byte *hit_addr;
7016 unsigned long t0;
7017 struct elf_link_hash_entry *h;
7018 struct plt_entry **plist;
7019 unsigned char sym_type;
7020
7021 switch (r_type)
7022 {
7023 case R_PPC_REL24:
7024 case R_PPC_LOCAL24PC:
7025 case R_PPC_PLTREL24:
7026 max_branch_offset = 1 << 25;
7027 break;
7028
7029 case R_PPC_REL14:
7030 case R_PPC_REL14_BRTAKEN:
7031 case R_PPC_REL14_BRNTAKEN:
7032 max_branch_offset = 1 << 15;
7033 break;
7fce784e 7034
d3e454b9
AM
7035 case R_PPC_ADDR16_HA:
7036 if (htab->params->pic_fixup > 0)
7037 break;
7038 continue;
7039
5446cbdf
AM
7040 default:
7041 continue;
7042 }
7043
7044 /* Get the value of the symbol referred to by the reloc. */
7045 h = NULL;
7046 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 7047 {
5446cbdf
AM
7048 /* A local symbol. */
7049 Elf_Internal_Sym *isym;
7050
7051 /* Read this BFD's local symbols. */
25dbc73a 7052 if (isymbuf == NULL)
5446cbdf
AM
7053 {
7054 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
7055 if (isymbuf == NULL)
7056 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
7057 symtab_hdr->sh_info, 0,
7058 NULL, NULL, NULL);
7059 if (isymbuf == 0)
7060 goto error_return;
7061 }
7062 isym = isymbuf + ELF32_R_SYM (irel->r_info);
7063 if (isym->st_shndx == SHN_UNDEF)
7064 tsec = bfd_und_section_ptr;
7065 else if (isym->st_shndx == SHN_ABS)
7066 tsec = bfd_abs_section_ptr;
7067 else if (isym->st_shndx == SHN_COMMON)
7068 tsec = bfd_com_section_ptr;
7069 else
7070 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7071
7072 toff = isym->st_value;
7073 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 7074 }
25dbc73a 7075 else
5446cbdf
AM
7076 {
7077 /* Global symbol handling. */
7078 unsigned long indx;
7fce784e 7079
5446cbdf
AM
7080 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
7081 h = elf_sym_hashes (abfd)[indx];
7619e7c7 7082
5446cbdf
AM
7083 while (h->root.type == bfd_link_hash_indirect
7084 || h->root.type == bfd_link_hash_warning)
7085 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 7086
5446cbdf
AM
7087 if (h->root.type == bfd_link_hash_defined
7088 || h->root.type == bfd_link_hash_defweak)
7089 {
7090 tsec = h->root.u.def.section;
7091 toff = h->root.u.def.value;
7092 }
7093 else if (h->root.type == bfd_link_hash_undefined
7094 || h->root.type == bfd_link_hash_undefweak)
7095 {
7096 tsec = bfd_und_section_ptr;
0e1862bb 7097 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
7098 }
7099 else
7100 continue;
7101
9f7552cf
AM
7102 /* If this branch is to __tls_get_addr then we may later
7103 optimise away the call. We won't be needing a long-
7104 branch stub in that case. */
0e1862bb 7105 if (bfd_link_executable (link_info)
9f7552cf
AM
7106 && h == htab->tls_get_addr
7107 && irel != internal_relocs)
7108 {
7109 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7110 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7111 unsigned int tls_mask = 0;
7112
7113 /* The previous reloc should be one of R_PPC_TLSGD or
7114 R_PPC_TLSLD, or for older object files, a reloc
7115 on the __tls_get_addr arg setup insn. Get tls
7116 mask bits from the symbol on that reloc. */
7117 if (t_symndx < symtab_hdr->sh_info)
7118 {
7119 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7120
7121 if (local_got_offsets != NULL)
7122 {
7123 struct plt_entry **local_plt = (struct plt_entry **)
7124 (local_got_offsets + symtab_hdr->sh_info);
7125 char *lgot_masks = (char *)
7126 (local_plt + symtab_hdr->sh_info);
7127 tls_mask = lgot_masks[t_symndx];
7128 }
7129 }
7130 else
7131 {
7132 struct elf_link_hash_entry *th
7133 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7134
7135 while (th->root.type == bfd_link_hash_indirect
7136 || th->root.type == bfd_link_hash_warning)
7137 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7138
7139 tls_mask
7140 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7141 }
7142
7143 /* The mask bits tell us if the call will be
7144 optimised away. */
7145 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7146 && (t_rtype == R_PPC_TLSGD
7147 || t_rtype == R_PPC_GOT_TLSGD16
7148 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7149 continue;
7150 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7151 && (t_rtype == R_PPC_TLSLD
7152 || t_rtype == R_PPC_GOT_TLSLD16
7153 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7154 continue;
7155 }
7156
5446cbdf
AM
7157 sym_type = h->type;
7158 }
7619e7c7 7159
d3e454b9
AM
7160 if (r_type == R_PPC_ADDR16_HA)
7161 {
7162 if (h != NULL
7163 && !h->def_regular
7164 && h->protected_def
7165 && ppc_elf_hash_entry (h)->has_addr16_ha
7166 && ppc_elf_hash_entry (h)->has_addr16_lo)
7167 picfixup_size += 12;
7168 continue;
7169 }
7170
5446cbdf
AM
7171 /* The condition here under which we call find_plt_ent must
7172 match that in relocate_section. If we call find_plt_ent here
7173 but not in relocate_section, or vice versa, then the branch
7174 destination used here may be incorrect. */
7175 plist = NULL;
7176 if (h != NULL)
25dbc73a 7177 {
5446cbdf
AM
7178 /* We know is_branch_reloc (r_type) is true. */
7179 if (h->type == STT_GNU_IFUNC
7180 || r_type == R_PPC_PLTREL24)
7181 plist = &h->plt.plist;
25dbc73a 7182 }
5446cbdf
AM
7183 else if (sym_type == STT_GNU_IFUNC
7184 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7185 {
5446cbdf
AM
7186 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7187 struct plt_entry **local_plt = (struct plt_entry **)
7188 (local_got_offsets + symtab_hdr->sh_info);
7189 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7190 }
5446cbdf 7191 if (plist != NULL)
a9585d22 7192 {
5446cbdf
AM
7193 bfd_vma addend = 0;
7194 struct plt_entry *ent;
7195
0e1862bb 7196 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7197 addend = irel->r_addend;
7198 ent = find_plt_ent (plist, got2, addend);
7199 if (ent != NULL)
a9585d22 7200 {
5446cbdf
AM
7201 if (htab->plt_type == PLT_NEW
7202 || h == NULL
7203 || !htab->elf.dynamic_sections_created
7204 || h->dynindx == -1)
7205 {
7206 tsec = htab->glink;
7207 toff = ent->glink_offset;
7208 }
7209 else
7210 {
ce558b89 7211 tsec = htab->elf.splt;
5446cbdf
AM
7212 toff = ent->plt.offset;
7213 }
de972ffa
AM
7214 }
7215 }
de972ffa 7216
5446cbdf
AM
7217 /* If the branch and target are in the same section, you have
7218 no hope of adding stubs. We'll error out later should the
7219 branch overflow. */
7220 if (tsec == isec)
7221 continue;
25dbc73a 7222
5446cbdf
AM
7223 /* There probably isn't any reason to handle symbols in
7224 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7225 attribute for a code section, and we are only looking at
7226 branches. However, implement it correctly here as a
7227 reference for other target relax_section functions. */
7228 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7229 {
7230 /* At this stage in linking, no SEC_MERGE symbol has been
7231 adjusted, so all references to such symbols need to be
7232 passed through _bfd_merged_section_offset. (Later, in
7233 relocate_section, all SEC_MERGE symbols *except* for
7234 section symbols have been adjusted.)
7235
7236 gas may reduce relocations against symbols in SEC_MERGE
7237 sections to a relocation against the section symbol when
7238 the original addend was zero. When the reloc is against
7239 a section symbol we should include the addend in the
7240 offset passed to _bfd_merged_section_offset, since the
7241 location of interest is the original symbol. On the
7242 other hand, an access to "sym+addend" where "sym" is not
7243 a section symbol should not include the addend; Such an
7244 access is presumed to be an offset from "sym"; The
7245 location of interest is just "sym". */
7246 if (sym_type == STT_SECTION)
7247 toff += irel->r_addend;
7248
7249 toff
7250 = _bfd_merged_section_offset (abfd, &tsec,
7251 elf_section_data (tsec)->sec_info,
7252 toff);
7253
7254 if (sym_type != STT_SECTION)
7255 toff += irel->r_addend;
7256 }
7257 /* PLTREL24 addends are special. */
7258 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7259 toff += irel->r_addend;
7619e7c7 7260
5446cbdf 7261 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7262 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7263 && tsec == bfd_und_section_ptr)
7264 || tsec->output_section == NULL
7265 || (tsec->owner != NULL
7266 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7267 continue;
7619e7c7 7268
5446cbdf 7269 roff = irel->r_offset;
7de713b9 7270
5446cbdf
AM
7271 /* If the branch is in range, no need to do anything. */
7272 if (tsec != bfd_und_section_ptr
0e1862bb 7273 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7274 /* A relocatable link may have sections moved during
7275 final link, so do not presume they remain in range. */
7276 || tsec->output_section == isec->output_section))
7277 {
7278 bfd_vma symaddr, reladdr;
7619e7c7 7279
5446cbdf
AM
7280 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7281 reladdr = isec->output_section->vma + isec->output_offset + roff;
7282 if (symaddr - reladdr + max_branch_offset
7283 < 2 * max_branch_offset)
7284 continue;
7285 }
01017ef8 7286
5446cbdf 7287 /* Look for an existing fixup to this address. */
d3e454b9 7288 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7289 if (f->tsec == tsec && f->toff == toff)
7290 break;
252b5132 7291
5446cbdf
AM
7292 if (f == NULL)
7293 {
7294 size_t size;
7295 unsigned long stub_rtype;
25dbc73a 7296
5446cbdf
AM
7297 val = trampoff - roff;
7298 if (val >= max_branch_offset)
7299 /* Oh dear, we can't reach a trampoline. Don't try to add
7300 one. We'll report an error later. */
7301 continue;
252b5132 7302
0e1862bb 7303 if (bfd_link_pic (link_info))
5446cbdf
AM
7304 {
7305 size = 4 * ARRAY_SIZE (shared_stub_entry);
7306 insn_offset = 12;
7307 }
7308 else
7309 {
7310 size = 4 * ARRAY_SIZE (stub_entry);
7311 insn_offset = 0;
7312 }
7313 stub_rtype = R_PPC_RELAX;
ce558b89 7314 if (tsec == htab->elf.splt
5446cbdf
AM
7315 || tsec == htab->glink)
7316 {
7317 stub_rtype = R_PPC_RELAX_PLT;
7318 if (r_type == R_PPC_PLTREL24)
7319 stub_rtype = R_PPC_RELAX_PLTREL24;
7320 }
252b5132 7321
5446cbdf
AM
7322 /* Hijack the old relocation. Since we need two
7323 relocations for this use a "composite" reloc. */
7324 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7325 stub_rtype);
7326 irel->r_offset = trampoff + insn_offset;
7327 if (r_type == R_PPC_PLTREL24
7328 && stub_rtype != R_PPC_RELAX_PLTREL24)
7329 irel->r_addend = 0;
7330
7331 /* Record the fixup so we don't do it again this section. */
7332 f = bfd_malloc (sizeof (*f));
d3e454b9 7333 f->next = branch_fixups;
5446cbdf
AM
7334 f->tsec = tsec;
7335 f->toff = toff;
7336 f->trampoff = trampoff;
d3e454b9 7337 branch_fixups = f;
5446cbdf
AM
7338
7339 trampoff += size;
7340 changes++;
25dbc73a
AM
7341 }
7342 else
7343 {
5446cbdf
AM
7344 val = f->trampoff - roff;
7345 if (val >= max_branch_offset)
7346 continue;
252b5132 7347
5446cbdf
AM
7348 /* Nop out the reloc, since we're finalizing things here. */
7349 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7350 }
252b5132 7351
5446cbdf
AM
7352 /* Get the section contents. */
7353 if (contents == NULL)
25dbc73a 7354 {
5446cbdf
AM
7355 /* Get cached copy if it exists. */
7356 if (elf_section_data (isec)->this_hdr.contents != NULL)
7357 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7358 /* Go get them off disk. */
5446cbdf 7359 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7360 goto error_return;
7361 }
252b5132 7362
5446cbdf
AM
7363 /* Fix up the existing branch to hit the trampoline. */
7364 hit_addr = contents + roff;
7365 switch (r_type)
7366 {
7367 case R_PPC_REL24:
7368 case R_PPC_LOCAL24PC:
7369 case R_PPC_PLTREL24:
7370 t0 = bfd_get_32 (abfd, hit_addr);
7371 t0 &= ~0x3fffffc;
7372 t0 |= val & 0x3fffffc;
7373 bfd_put_32 (abfd, t0, hit_addr);
7374 break;
252b5132 7375
5446cbdf
AM
7376 case R_PPC_REL14:
7377 case R_PPC_REL14_BRTAKEN:
7378 case R_PPC_REL14_BRNTAKEN:
7379 t0 = bfd_get_32 (abfd, hit_addr);
7380 t0 &= ~0xfffc;
7381 t0 |= val & 0xfffc;
7382 bfd_put_32 (abfd, t0, hit_addr);
7383 break;
7384 }
25dbc73a 7385 }
252b5132 7386
d3e454b9 7387 while (branch_fixups != NULL)
25dbc73a 7388 {
d3e454b9
AM
7389 struct one_branch_fixup *f = branch_fixups;
7390 branch_fixups = branch_fixups->next;
25dbc73a
AM
7391 free (f);
7392 }
5446cbdf 7393 }
252b5132 7394
5446cbdf
AM
7395 workaround_change = FALSE;
7396 newsize = trampoff;
795bc6b3 7397 if (htab->params->ppc476_workaround
0e1862bb 7398 && (!bfd_link_relocatable (link_info)
795bc6b3 7399 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7400 {
7401 bfd_vma addr, end_addr;
7402 unsigned int crossings;
795bc6b3 7403 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7404
7405 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7406 end_addr = addr + trampoff;
5446cbdf 7407 addr &= -pagesize;
795bc6b3 7408 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7409 if (crossings != 0)
7410 {
7411 /* Keep space aligned, to ensure the patch code itself does
7412 not cross a page. Don't decrease size calculated on a
7413 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7414 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7415 newsize += crossings * 16;
7416 if (relax_info->workaround_size < newsize)
7417 {
7418 relax_info->workaround_size = newsize;
7419 workaround_change = TRUE;
5446cbdf
AM
7420 }
7421 /* Ensure relocate_section is called. */
7422 isec->flags |= SEC_RELOC;
7423 }
7424 newsize = trampoff + relax_info->workaround_size;
7425 }
7426
d3e454b9
AM
7427 if (htab->params->pic_fixup > 0)
7428 {
7429 picfixup_size -= relax_info->picfixup_size;
7430 if (picfixup_size != 0)
7431 relax_info->picfixup_size += picfixup_size;
7432 newsize += relax_info->picfixup_size;
7433 }
7434
7435 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7436 isec->size = newsize;
7437
25dbc73a
AM
7438 if (isymbuf != NULL
7439 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7440 {
25dbc73a
AM
7441 if (! link_info->keep_memory)
7442 free (isymbuf);
252b5132 7443 else
25dbc73a
AM
7444 {
7445 /* Cache the symbols for elf_link_input_bfd. */
7446 symtab_hdr->contents = (unsigned char *) isymbuf;
7447 }
252b5132
RH
7448 }
7449
25dbc73a
AM
7450 if (contents != NULL
7451 && elf_section_data (isec)->this_hdr.contents != contents)
7452 {
53291d1f 7453 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7454 free (contents);
7455 else
7456 {
7457 /* Cache the section contents for elf_link_input_bfd. */
7458 elf_section_data (isec)->this_hdr.contents = contents;
7459 }
7460 }
252b5132 7461
d3e454b9 7462 changes += picfixup_size;
9bc4e62b 7463 if (changes != 0)
25dbc73a 7464 {
9bc4e62b
NS
7465 /* Append sufficient NOP relocs so we can write out relocation
7466 information for the trampolines. */
d4730f92 7467 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7468 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7469 * sizeof (*new_relocs));
7470 unsigned ix;
5b914448 7471
9bc4e62b
NS
7472 if (!new_relocs)
7473 goto error_return;
7474 memcpy (new_relocs, internal_relocs,
7475 isec->reloc_count * sizeof (*new_relocs));
7476 for (ix = changes; ix--;)
7477 {
7478 irel = new_relocs + ix + isec->reloc_count;
7479
7480 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7481 }
7482 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7483 free (internal_relocs);
9bc4e62b
NS
7484 elf_section_data (isec)->relocs = new_relocs;
7485 isec->reloc_count += changes;
d4730f92
BS
7486 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7487 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7488 }
5446cbdf
AM
7489 else if (internal_relocs != NULL
7490 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7491 free (internal_relocs);
252b5132 7492
5446cbdf 7493 *again = changes != 0 || workaround_change;
b34976b6 7494 return TRUE;
25dbc73a
AM
7495
7496 error_return:
d3e454b9 7497 while (branch_fixups != NULL)
5446cbdf 7498 {
d3e454b9
AM
7499 struct one_branch_fixup *f = branch_fixups;
7500 branch_fixups = branch_fixups->next;
5446cbdf
AM
7501 free (f);
7502 }
25dbc73a
AM
7503 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7504 free (isymbuf);
7505 if (contents != NULL
7506 && elf_section_data (isec)->this_hdr.contents != contents)
7507 free (contents);
7508 if (internal_relocs != NULL
7509 && elf_section_data (isec)->relocs != internal_relocs)
7510 free (internal_relocs);
7511 return FALSE;
252b5132 7512}
252b5132 7513\f
8a696751
AM
7514/* What to do when ld finds relocations against symbols defined in
7515 discarded sections. */
7516
7517static unsigned int
7518ppc_elf_action_discarded (asection *sec)
7519{
7520 if (strcmp (".fixup", sec->name) == 0)
7521 return 0;
7522
7523 if (strcmp (".got2", sec->name) == 0)
7524 return 0;
7525
7526 return _bfd_elf_default_action_discarded (sec);
7527}
c9a2f333 7528\f
25dbc73a 7529/* Fill in the address for a pointer generated in a linker section. */
252b5132 7530
25dbc73a 7531static bfd_vma
76750a2f 7532elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7533 elf_linker_section_t *lsect,
7534 struct elf_link_hash_entry *h,
7535 bfd_vma relocation,
2bb04cf2 7536 const Elf_Internal_Rela *rel)
25dbc73a
AM
7537{
7538 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7539
25dbc73a 7540 BFD_ASSERT (lsect != NULL);
252b5132 7541
25dbc73a 7542 if (h != NULL)
252b5132 7543 {
25dbc73a
AM
7544 /* Handle global symbol. */
7545 struct ppc_elf_link_hash_entry *eh;
252b5132 7546
25dbc73a 7547 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7548 BFD_ASSERT (eh->elf.def_regular);
7549 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7550 }
7551 else
7552 {
7553 /* Handle local symbol. */
7554 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7555
0c8d6e5c 7556 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7557 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7558 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7559 }
252b5132 7560
76750a2f
AM
7561 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7562 rel->r_addend,
7563 lsect);
7564 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7565
76750a2f
AM
7566 /* Offset will always be a multiple of four, so use the bottom bit
7567 as a "written" flag. */
7568 if ((linker_section_ptr->offset & 1) == 0)
7569 {
7570 bfd_put_32 (lsect->section->owner,
7571 relocation + linker_section_ptr->addend,
7572 lsect->section->contents + linker_section_ptr->offset);
7573 linker_section_ptr->offset += 1;
252b5132
RH
7574 }
7575
bd6c6e2b
AM
7576 relocation = (lsect->section->output_section->vma
7577 + lsect->section->output_offset
76750a2f 7578 + linker_section_ptr->offset - 1
bd6c6e2b 7579 - SYM_VAL (lsect->sym));
252b5132 7580
25dbc73a
AM
7581#ifdef DEBUG
7582 fprintf (stderr,
7583 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7584 lsect->name, (long) relocation, (long) relocation);
7585#endif
252b5132 7586
bd6c6e2b 7587 return relocation;
252b5132 7588}
25dbc73a 7589
e054468f
AM
7590#define PPC_LO(v) ((v) & 0xffff)
7591#define PPC_HI(v) (((v) >> 16) & 0xffff)
7592#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7593
7594static void
a7f2871e 7595write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7596 struct bfd_link_info *info)
7597{
7598 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7599 bfd *output_bfd = info->output_bfd;
7600 bfd_vma plt;
e054468f
AM
7601
7602 plt = ((ent->plt.offset & ~1)
7603 + plt_sec->output_section->vma
7604 + plt_sec->output_offset);
e054468f 7605
0e1862bb 7606 if (bfd_link_pic (info))
e054468f
AM
7607 {
7608 bfd_vma got = 0;
7609
7610 if (ent->addend >= 32768)
7611 got = (ent->addend
7612 + ent->sec->output_section->vma
7613 + ent->sec->output_offset);
7614 else if (htab->elf.hgot != NULL)
7615 got = SYM_VAL (htab->elf.hgot);
7616
7617 plt -= got;
7618
7619 if (plt + 0x8000 < 0x10000)
7620 {
7621 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7622 p += 4;
7623 bfd_put_32 (output_bfd, MTCTR_11, p);
7624 p += 4;
7625 bfd_put_32 (output_bfd, BCTR, p);
7626 p += 4;
da3a2088 7627 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7628 p += 4;
7629 }
7630 else
7631 {
7632 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7633 p += 4;
7634 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7635 p += 4;
7636 bfd_put_32 (output_bfd, MTCTR_11, p);
7637 p += 4;
7638 bfd_put_32 (output_bfd, BCTR, p);
7639 p += 4;
7640 }
7641 }
7642 else
7643 {
7644 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7645 p += 4;
7646 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7647 p += 4;
7648 bfd_put_32 (output_bfd, MTCTR_11, p);
7649 p += 4;
7650 bfd_put_32 (output_bfd, BCTR, p);
7651 p += 4;
7652 }
7653}
7654
bd6c6e2b
AM
7655/* Return true if symbol is defined statically. */
7656
7657static bfd_boolean
7658is_static_defined (struct elf_link_hash_entry *h)
7659{
7660 return ((h->root.type == bfd_link_hash_defined
7661 || h->root.type == bfd_link_hash_defweak)
7662 && h->root.u.def.section != NULL
7663 && h->root.u.def.section->output_section != NULL);
7664}
7665
2d0f3896
AM
7666/* If INSN is an opcode that may be used with an @tls operand, return
7667 the transformed insn for TLS optimisation, otherwise return 0. If
7668 REG is non-zero only match an insn with RB or RA equal to REG. */
7669
7670unsigned int
7671_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7672{
7673 unsigned int rtra;
7674
7675 if ((insn & (0x3f << 26)) != 31 << 26)
7676 return 0;
7677
7678 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7679 rtra = insn & ((1 << 26) - (1 << 16));
7680 else if (((insn >> 16) & 0x1f) == reg)
7681 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7682 else
7683 return 0;
7684
7685 if ((insn & (0x3ff << 1)) == 266 << 1)
7686 /* add -> addi. */
7687 insn = 14 << 26;
7688 else if ((insn & (0x1f << 1)) == 23 << 1
7689 && ((insn & (0x1f << 6)) < 14 << 6
7690 || ((insn & (0x1f << 6)) >= 16 << 6
7691 && (insn & (0x1f << 6)) < 24 << 6)))
7692 /* load and store indexed -> dform. */
7693 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7694 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7695 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7696 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7697 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7698 /* lwax -> lwa. */
7699 insn = (58 << 26) | 2;
7700 else
7701 return 0;
7702 insn |= rtra;
7703 return insn;
7704}
7705
766bc656
AM
7706/* If INSN is an opcode that may be used with an @tprel operand, return
7707 the transformed insn for an undefined weak symbol, ie. with the
7708 thread pointer REG operand removed. Otherwise return 0. */
7709
7710unsigned int
7711_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7712{
7713 if ((insn & (0x1f << 16)) == reg << 16
7714 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7715 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7716 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7717 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7718 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7719 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7720 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7721 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7722 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7723 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7724 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7725 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7726 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7727 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7728 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7729 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7730 && (insn & 3) != 1)
7731 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7732 && ((insn & 3) == 0 || (insn & 3) == 3))))
7733 {
7734 insn &= ~(0x1f << 16);
7735 }
7736 else if ((insn & (0x1f << 21)) == reg << 21
7737 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7738 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7739 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7740 {
7741 insn &= ~(0x1f << 21);
7742 insn |= (insn & (0x1f << 16)) << 5;
7743 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7744 insn -= 2 >> 26; /* convert to ori,oris */
7745 }
7746 else
7747 insn = 0;
7748 return insn;
7749}
7750
1fe532cf
AM
7751static bfd_boolean
7752is_insn_ds_form (unsigned int insn)
7753{
7754 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7755 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7756 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7757 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7758}
7759
7760static bfd_boolean
7761is_insn_dq_form (unsigned int insn)
7762{
a680de9a
PB
7763 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7764 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7765 && (insn & 3) == 1));
1fe532cf
AM
7766}
7767
252b5132
RH
7768/* The RELOCATE_SECTION function is called by the ELF backend linker
7769 to handle the relocations for a section.
7770
7771 The relocs are always passed as Rela structures; if the section
7772 actually uses Rel structures, the r_addend field will always be
7773 zero.
7774
7775 This function is responsible for adjust the section contents as
7776 necessary, and (if using Rela relocs and generating a
1049f94e 7777 relocatable output file) adjusting the reloc addend as
252b5132
RH
7778 necessary.
7779
7780 This function does not have to worry about setting the reloc
7781 address or the reloc symbol index.
7782
7783 LOCAL_SYMS is a pointer to the swapped in local symbols.
7784
7785 LOCAL_SECTIONS is an array giving the section in the input file
7786 corresponding to the st_shndx field of each local symbol.
7787
7788 The global hash table entry for the global symbols can be found
7789 via elf_sym_hashes (input_bfd).
7790
1049f94e 7791 When generating relocatable output, this function must handle
252b5132
RH
7792 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7793 going to be the section symbol corresponding to the output
7794 section, which means that the addend must be adjusted
7795 accordingly. */
7796
b34976b6 7797static bfd_boolean
55fd94b0
AM
7798ppc_elf_relocate_section (bfd *output_bfd,
7799 struct bfd_link_info *info,
7800 bfd *input_bfd,
7801 asection *input_section,
7802 bfd_byte *contents,
7803 Elf_Internal_Rela *relocs,
7804 Elf_Internal_Sym *local_syms,
7805 asection **local_sections)
252b5132 7806{
7619e7c7
AM
7807 Elf_Internal_Shdr *symtab_hdr;
7808 struct elf_link_hash_entry **sym_hashes;
7809 struct ppc_elf_link_hash_table *htab;
7810 Elf_Internal_Rela *rel;
c316a17c 7811 Elf_Internal_Rela *wrel;
7619e7c7
AM
7812 Elf_Internal_Rela *relend;
7813 Elf_Internal_Rela outrel;
f95f8542 7814 asection *got2;
252b5132 7815 bfd_vma *local_got_offsets;
b34976b6 7816 bfd_boolean ret = TRUE;
95f0d0d2 7817 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 7818 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7819 unsigned int picfixup_size = 0;
7820 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7821
252b5132 7822#ifdef DEBUG
d003868e
AM
7823 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7824 "%ld relocations%s",
7825 input_bfd, input_section,
7826 (long) input_section->reloc_count,
0e1862bb 7827 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7828#endif
7829
a6aa5195
AM
7830 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7831
e47cd125 7832 /* Initialize howto table if not already done. */
8da6118f 7833 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7834 ppc_elf_howto_init ();
7835
7619e7c7 7836 htab = ppc_elf_hash_table (info);
252b5132 7837 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7838 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7839 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7840 /* We have to handle relocations in vxworks .tls_vars sections
7841 specially, because the dynamic loader is 'weird'. */
0e1862bb 7842 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7843 && !strcmp (input_section->output_section->name,
7844 ".tls_vars"));
d3e454b9
AM
7845 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7846 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7847 rel = wrel = relocs;
7619e7c7 7848 relend = relocs + input_section->reloc_count;
c316a17c 7849 for (; rel < relend; wrel++, rel++)
252b5132 7850 {
7619e7c7
AM
7851 enum elf_ppc_reloc_type r_type;
7852 bfd_vma addend;
7853 bfd_reloc_status_type r;
7854 Elf_Internal_Sym *sym;
7855 asection *sec;
7856 struct elf_link_hash_entry *h;
7857 const char *sym_name;
252b5132
RH
7858 reloc_howto_type *howto;
7859 unsigned long r_symndx;
7860 bfd_vma relocation;
91d6fa6a 7861 bfd_vma branch_bit, from;
7619e7c7
AM
7862 bfd_boolean unresolved_reloc;
7863 bfd_boolean warned;
7864 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7865 struct plt_entry **ifunc;
86c95733 7866 struct reloc_howto_struct alt_howto;
7619e7c7 7867
c316a17c 7868 again:
55fd94b0
AM
7869 r_type = ELF32_R_TYPE (rel->r_info);
7870 sym = NULL;
7871 sec = NULL;
7872 h = NULL;
7619e7c7
AM
7873 unresolved_reloc = FALSE;
7874 warned = FALSE;
252b5132 7875 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7876
252b5132
RH
7877 if (r_symndx < symtab_hdr->sh_info)
7878 {
7879 sym = local_syms + r_symndx;
7880 sec = local_sections[r_symndx];
26c61ae5 7881 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7882
8517fae7 7883 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7884 }
7885 else
7886 {
62d887d4
L
7887 bfd_boolean ignored;
7888
b2a8e766
AM
7889 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7890 r_symndx, symtab_hdr, sym_hashes,
7891 h, sec, relocation,
62d887d4 7892 unresolved_reloc, warned, ignored);
9abc968f 7893
252b5132 7894 sym_name = h->root.root.string;
7619e7c7
AM
7895 }
7896
dbaa2011 7897 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7898 {
7899 /* For relocs against symbols from removed linkonce sections,
7900 or sections discarded by a linker script, we just want the
7901 section contents zeroed. Avoid any special processing. */
7902 howto = NULL;
7903 if (r_type < R_PPC_max)
7904 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7905
7906 _bfd_clear_contents (howto, input_bfd, input_section,
7907 contents + rel->r_offset);
7908 wrel->r_offset = rel->r_offset;
7909 wrel->r_info = 0;
7910 wrel->r_addend = 0;
7911
7912 /* For ld -r, remove relocations in debug sections against
7913 sections defined in discarded sections. Not done for
7914 non-debug to preserve relocs in .eh_frame which the
7915 eh_frame editing code expects to be present. */
7916 if (bfd_link_relocatable (info)
7917 && (input_section->flags & SEC_DEBUGGING))
7918 wrel--;
7919
7920 continue;
ab96bf03
AM
7921 }
7922
0e1862bb 7923 if (bfd_link_relocatable (info))
ab96bf03
AM
7924 {
7925 if (got2 != NULL
7926 && r_type == R_PPC_PLTREL24
f75e0e33 7927 && rel->r_addend != 0)
ab96bf03
AM
7928 {
7929 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7930 addend specifies the GOT pointer offset within .got2. */
7931 rel->r_addend += got2->output_offset;
7932 }
53291d1f
AM
7933 if (r_type != R_PPC_RELAX_PLT
7934 && r_type != R_PPC_RELAX_PLTREL24
7935 && r_type != R_PPC_RELAX)
c316a17c 7936 goto copy_reloc;
ab96bf03
AM
7937 }
7938
7619e7c7
AM
7939 /* TLS optimizations. Replace instruction sequences and relocs
7940 based on information we collected in tls_optimize. We edit
7941 RELOCS so that --emit-relocs will output something sensible
7942 for the final instruction stream. */
7943 tls_mask = 0;
7944 tls_gd = 0;
727fc41e
AM
7945 if (h != NULL)
7946 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7947 else if (local_got_offsets != NULL)
7619e7c7 7948 {
e054468f 7949 struct plt_entry **local_plt;
727fc41e 7950 char *lgot_masks;
e054468f
AM
7951 local_plt
7952 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7953 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7954 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7955 }
7956
7957 /* Ensure reloc mapping code below stays sane. */
7958 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7959 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7960 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7961 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7962 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7963 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7964 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7965 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7966 abort ();
7967 switch (r_type)
7968 {
7969 default:
7970 break;
7971
7972 case R_PPC_GOT_TPREL16:
7973 case R_PPC_GOT_TPREL16_LO:
e054468f 7974 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7975 && (tls_mask & TLS_TPREL) == 0)
7976 {
7977 bfd_vma insn;
91d6fa6a 7978
95f0d0d2 7979 insn = bfd_get_32 (input_bfd,
c316a17c 7980 contents + rel->r_offset - d_offset);
7619e7c7
AM
7981 insn &= 31 << 21;
7982 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 7983 bfd_put_32 (input_bfd, insn,
c316a17c 7984 contents + rel->r_offset - d_offset);
7619e7c7
AM
7985 r_type = R_PPC_TPREL16_HA;
7986 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7987 }
7988 break;
7989
7990 case R_PPC_TLS:
e054468f 7991 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7992 && (tls_mask & TLS_TPREL) == 0)
7993 {
2d0f3896
AM
7994 bfd_vma insn;
7995
95f0d0d2 7996 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
7997 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7998 if (insn == 0)
7619e7c7 7999 abort ();
95f0d0d2 8000 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
8001 r_type = R_PPC_TPREL16_LO;
8002 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 8003
7619e7c7 8004 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
8005 PPC_TPREL16_LO which is at low-order half-word. */
8006 rel->r_offset += d_offset;
7619e7c7
AM
8007 }
8008 break;
8009
8010 case R_PPC_GOT_TLSGD16_HI:
8011 case R_PPC_GOT_TLSGD16_HA:
8012 tls_gd = TLS_TPRELGD;
e054468f 8013 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
8014 goto tls_gdld_hi;
8015 break;
8016
8017 case R_PPC_GOT_TLSLD16_HI:
8018 case R_PPC_GOT_TLSLD16_HA:
e054468f 8019 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
8020 {
8021 tls_gdld_hi:
8022 if ((tls_mask & tls_gd) != 0)
8023 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8024 + R_PPC_GOT_TPREL16);
8025 else
8026 {
4fe5ca5b 8027 rel->r_offset -= d_offset;
95f0d0d2 8028 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
8029 r_type = R_PPC_NONE;
8030 }
8031 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8032 }
8033 break;
8034
8035 case R_PPC_GOT_TLSGD16:
8036 case R_PPC_GOT_TLSGD16_LO:
8037 tls_gd = TLS_TPRELGD;
e054468f 8038 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 8039 goto tls_ldgd_opt;
7619e7c7
AM
8040 break;
8041
8042 case R_PPC_GOT_TLSLD16:
8043 case R_PPC_GOT_TLSLD16_LO:
e054468f 8044 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 8045 {
3a71aa26 8046 unsigned int insn1, insn2;
b7fcf6f6 8047 bfd_vma offset;
7619e7c7 8048
b7fcf6f6 8049 tls_ldgd_opt:
727fc41e
AM
8050 offset = (bfd_vma) -1;
8051 /* If not using the newer R_PPC_TLSGD/LD to mark
8052 __tls_get_addr calls, we must trust that the call
8053 stays with its arg setup insns, ie. that the next
8054 reloc is the __tls_get_addr call associated with
8055 the current reloc. Edit both insns. */
8056 if (input_section->has_tls_get_addr_call
8057 && rel + 1 < relend
8058 && branch_reloc_hash_match (input_bfd, rel + 1,
8059 htab->tls_get_addr))
8060 offset = rel[1].r_offset;
b86ac8e3
AM
8061 /* We read the low GOT_TLS insn because we need to keep
8062 the destination reg. It may be something other than
8063 the usual r3, and moved to r3 before the call by
8064 intervening code. */
95f0d0d2 8065 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 8066 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8067 if ((tls_mask & tls_gd) != 0)
8068 {
8069 /* IE */
b86ac8e3 8070 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 8071 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
8072 if (offset != (bfd_vma) -1)
8073 {
f58d5a2d 8074 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 8075 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 8076 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8077 }
b7fcf6f6
AM
8078 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8079 + R_PPC_GOT_TPREL16);
8080 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8081 }
8082 else
8083 {
8084 /* LE */
b86ac8e3
AM
8085 insn1 &= 0x1f << 21;
8086 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
8087 if (tls_gd == 0)
8088 {
b7fcf6f6 8089 /* Was an LD reloc. */
1d483afe
AM
8090 for (r_symndx = 0;
8091 r_symndx < symtab_hdr->sh_info;
8092 r_symndx++)
8093 if (local_sections[r_symndx] == sec)
8094 break;
8095 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8096 r_symndx = STN_UNDEF;
b7fcf6f6 8097 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8098 if (r_symndx != STN_UNDEF)
1d483afe
AM
8099 rel->r_addend -= (local_syms[r_symndx].st_value
8100 + sec->output_offset
8101 + sec->output_section->vma);
7619e7c7 8102 }
b7fcf6f6
AM
8103 r_type = R_PPC_TPREL16_HA;
8104 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
8105 if (offset != (bfd_vma) -1)
8106 {
8107 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8108 rel[1].r_offset = offset + d_offset;
8109 rel[1].r_addend = rel->r_addend;
8110 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8111 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8112 }
b7fcf6f6 8113 }
95f0d0d2 8114 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 8115 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8116 if (tls_gd == 0)
8117 {
8118 /* We changed the symbol on an LD reloc. Start over
8119 in order to get h, sym, sec etc. right. */
c316a17c 8120 goto again;
7619e7c7 8121 }
252b5132 8122 }
7619e7c7 8123 break;
727fc41e
AM
8124
8125 case R_PPC_TLSGD:
e054468f 8126 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
8127 {
8128 unsigned int insn2;
8129 bfd_vma offset = rel->r_offset;
8130
8131 if ((tls_mask & TLS_TPRELGD) != 0)
8132 {
8133 /* IE */
8134 r_type = R_PPC_NONE;
8135 insn2 = 0x7c631214; /* add 3,3,2 */
8136 }
8137 else
8138 {
8139 /* LE */
8140 r_type = R_PPC_TPREL16_LO;
8141 rel->r_offset += d_offset;
8142 insn2 = 0x38630000; /* addi 3,3,0 */
8143 }
8144 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 8145 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
8146 /* Zap the reloc on the _tls_get_addr call too. */
8147 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8148 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8149 }
8150 break;
8151
8152 case R_PPC_TLSLD:
e054468f 8153 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
8154 {
8155 unsigned int insn2;
8156
8157 for (r_symndx = 0;
8158 r_symndx < symtab_hdr->sh_info;
8159 r_symndx++)
8160 if (local_sections[r_symndx] == sec)
8161 break;
8162 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8163 r_symndx = STN_UNDEF;
727fc41e 8164 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8165 if (r_symndx != STN_UNDEF)
727fc41e
AM
8166 rel->r_addend -= (local_syms[r_symndx].st_value
8167 + sec->output_offset
8168 + sec->output_section->vma);
8169
8170 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8171 rel->r_offset += d_offset;
8172 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8173 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
8174 contents + rel->r_offset - d_offset);
8175 /* Zap the reloc on the _tls_get_addr call too. */
8176 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8177 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8178 goto again;
727fc41e
AM
8179 }
8180 break;
7619e7c7
AM
8181 }
8182
8183 /* Handle other relocations that tweak non-addend part of insn. */
8184 branch_bit = 0;
8185 switch (r_type)
8186 {
8187 default:
8188 break;
8189
8190 /* Branch taken prediction relocations. */
8191 case R_PPC_ADDR14_BRTAKEN:
8192 case R_PPC_REL14_BRTAKEN:
8193 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8194 /* Fall through. */
7619e7c7 8195
4cc11e76 8196 /* Branch not taken prediction relocations. */
7619e7c7
AM
8197 case R_PPC_ADDR14_BRNTAKEN:
8198 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8199 {
8200 bfd_vma insn;
7619e7c7 8201
95f0d0d2 8202 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8203 insn &= ~BRANCH_PREDICT_BIT;
8204 insn |= branch_bit;
7619e7c7 8205
91d6fa6a
NC
8206 from = (rel->r_offset
8207 + input_section->output_offset
8208 + input_section->output_section->vma);
7619e7c7 8209
91d6fa6a
NC
8210 /* Invert 'y' bit if not the default. */
8211 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8212 insn ^= BRANCH_PREDICT_BIT;
8213
95f0d0d2 8214 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a
NC
8215 break;
8216 }
252b5132
RH
8217 }
8218
d3e454b9
AM
8219 if (ELIMINATE_COPY_RELOCS
8220 && h != NULL
8221 && !h->def_regular
8222 && h->protected_def
8223 && ppc_elf_hash_entry (h)->has_addr16_ha
8224 && ppc_elf_hash_entry (h)->has_addr16_lo
8225 && htab->params->pic_fixup > 0)
8226 {
8227 /* Convert lis;addi or lis;load/store accessing a protected
8228 variable defined in a shared library to PIC. */
8229 unsigned int insn;
8230
8231 if (r_type == R_PPC_ADDR16_HA)
8232 {
95f0d0d2 8233 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8234 contents + rel->r_offset - d_offset);
8235 if ((insn & (0x3f << 26)) == (15u << 26)
8236 && (insn & (0x1f << 16)) == 0 /* lis */)
8237 {
8238 bfd_byte *p;
8239 bfd_vma off;
8240 bfd_vma got_addr;
8241
8242 p = (contents + input_section->size
8243 - relax_info->workaround_size
8244 - relax_info->picfixup_size
8245 + picfixup_size);
8246 off = (p - contents) - (rel->r_offset - d_offset);
8247 if (off > 0x1fffffc || (off & 3) != 0)
8248 info->callbacks->einfo
174d0a74 8249 (_("%H: fixup branch overflow\n"),
d3e454b9
AM
8250 input_bfd, input_section, rel->r_offset);
8251
95f0d0d2 8252 bfd_put_32 (input_bfd, B | off,
d3e454b9 8253 contents + rel->r_offset - d_offset);
ce558b89
AM
8254 got_addr = (htab->elf.sgot->output_section->vma
8255 + htab->elf.sgot->output_offset
d3e454b9 8256 + (h->got.offset & ~1));
c316a17c
AM
8257 wrel->r_offset = (p - contents) + d_offset;
8258 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8259 wrel->r_addend = got_addr;
d3e454b9 8260 insn &= ~0xffff;
4aef7643 8261 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8262 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8263
8264 /* Convert lis to lwz, loading address from GOT. */
8265 insn &= ~0xffff;
8266 insn ^= (32u ^ 15u) << 26;
8267 insn |= (insn & (0x1f << 21)) >> 5;
8268 insn |= got_addr & 0xffff;
95f0d0d2 8269 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8270
95f0d0d2 8271 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8272 picfixup_size += 12;
8273
8274 /* Use one of the spare relocs, so --emit-relocs
8275 output is reasonable. */
8276 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8277 wrel++, rel++;
8278 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8279 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8280 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8281
8282 /* Continue on as if we had a got reloc, to output
8283 dynamic reloc. */
8284 r_type = R_PPC_GOT16_LO;
8285 }
8286 else
8287 info->callbacks->einfo
695344c0 8288 /* xgettext:c-format */
174d0a74 8289 (_("%H: error: %s with unexpected instruction %x\n"),
d3e454b9
AM
8290 input_bfd, input_section, rel->r_offset,
8291 "R_PPC_ADDR16_HA", insn);
8292 }
8293 else if (r_type == R_PPC_ADDR16_LO)
8294 {
95f0d0d2 8295 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8296 contents + rel->r_offset - d_offset);
8297 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8298 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8299 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8300 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8301 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8302 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8303 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8304 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8305 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8306 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8307 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8308 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8309 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8310 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8311 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8312 && (insn & 3) != 1)
8313 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8314 && ((insn & 3) == 0 || (insn & 3) == 3)))
8315 {
8316 /* Arrange to apply the reloc addend, if any. */
8317 relocation = 0;
8318 unresolved_reloc = FALSE;
8319 rel->r_info = ELF32_R_INFO (0, r_type);
8320 }
8321 else
8322 info->callbacks->einfo
695344c0 8323 /* xgettext:c-format */
174d0a74 8324 (_("%H: error: %s with unexpected instruction %x\n"),
d3e454b9
AM
8325 input_bfd, input_section, rel->r_offset,
8326 "R_PPC_ADDR16_LO", insn);
8327 }
8328 }
8329
e054468f 8330 ifunc = NULL;
25f23106 8331 if (!htab->is_vxworks)
e054468f 8332 {
de972ffa
AM
8333 struct plt_entry *ent;
8334
e054468f
AM
8335 if (h != NULL)
8336 {
8337 if (h->type == STT_GNU_IFUNC)
8338 ifunc = &h->plt.plist;
8339 }
de972ffa
AM
8340 else if (local_got_offsets != NULL
8341 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8342 {
de972ffa 8343 struct plt_entry **local_plt;
e054468f 8344
de972ffa
AM
8345 local_plt = (struct plt_entry **) (local_got_offsets
8346 + symtab_hdr->sh_info);
8347 ifunc = local_plt + r_symndx;
e054468f 8348 }
e054468f 8349
de972ffa
AM
8350 ent = NULL;
8351 if (ifunc != NULL
0e1862bb 8352 && (!bfd_link_pic (info)
de972ffa
AM
8353 || is_branch_reloc (r_type)))
8354 {
8355 addend = 0;
0e1862bb 8356 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8357 addend = rel->r_addend;
8358 ent = find_plt_ent (ifunc, got2, addend);
8359 }
8360 if (ent != NULL)
8361 {
888a7fc3
AM
8362 if (bfd_link_pic (info)
8363 && ent->sec != got2
8364 && htab->plt_type != PLT_NEW
8365 && (!htab->elf.dynamic_sections_created
8366 || h == NULL
8367 || h->dynindx == -1))
8368 {
8369 /* Uh oh, we are going to create a pic glink stub
8370 for an ifunc (here for h == NULL and later in
8371 finish_dynamic_symbol for h != NULL), and
8372 apparently are using code compiled with
8373 -mbss-plt. The difficulty is that -mbss-plt code
8374 gives no indication via a magic PLTREL24 addend
8375 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8376 is pointing into a .got2 section (and how far
8377 into .got2). */
8378 info->callbacks->einfo
695344c0 8379 /* xgettext:c-format */
174d0a74 8380 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
888a7fc3
AM
8381 input_bfd, input_section, rel->r_offset, sym_name);
8382 }
e054468f
AM
8383 if (h == NULL && (ent->plt.offset & 1) == 0)
8384 {
8385 Elf_Internal_Rela rela;
8386 bfd_byte *loc;
8387
ce558b89
AM
8388 rela.r_offset = (htab->elf.iplt->output_section->vma
8389 + htab->elf.iplt->output_offset
e054468f
AM
8390 + ent->plt.offset);
8391 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8392 rela.r_addend = relocation;
ce558b89
AM
8393 loc = htab->elf.irelplt->contents;
8394 loc += (htab->elf.irelplt->reloc_count++
25f23106 8395 * sizeof (Elf32_External_Rela));
e054468f 8396 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
82e66161 8397 htab->local_ifunc_resolver = 1;
e054468f
AM
8398
8399 ent->plt.offset |= 1;
8400 }
8401 if (h == NULL && (ent->glink_offset & 1) == 0)
8402 {
a7f2871e
AM
8403 unsigned char *p = ((unsigned char *) htab->glink->contents
8404 + ent->glink_offset);
ce558b89 8405 write_glink_stub (ent, htab->elf.iplt, p, info);
e054468f
AM
8406 ent->glink_offset |= 1;
8407 }
8408
8409 unresolved_reloc = FALSE;
8410 if (htab->plt_type == PLT_NEW
8411 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8412 || h == NULL
8413 || h->dynindx == -1)
e054468f
AM
8414 relocation = (htab->glink->output_section->vma
8415 + htab->glink->output_offset
8416 + (ent->glink_offset & ~1));
8417 else
ce558b89
AM
8418 relocation = (htab->elf.splt->output_section->vma
8419 + htab->elf.splt->output_offset
e054468f
AM
8420 + ent->plt.offset);
8421 }
8422 }
8423
7619e7c7
AM
8424 addend = rel->r_addend;
8425 tls_type = 0;
8426 howto = NULL;
55fd94b0
AM
8427 if (r_type < R_PPC_max)
8428 howto = ppc_elf_howto_table[r_type];
7619e7c7 8429 switch (r_type)
252b5132
RH
8430 {
8431 default:
25f53a85 8432 info->callbacks->einfo
695344c0 8433 /* xgettext:c-format */
8de848d8 8434 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8435 input_bfd, (int) r_type, sym_name);
252b5132
RH
8436
8437 bfd_set_error (bfd_error_bad_value);
b34976b6 8438 ret = FALSE;
c316a17c 8439 goto copy_reloc;
252b5132 8440
7619e7c7
AM
8441 case R_PPC_NONE:
8442 case R_PPC_TLS:
727fc41e
AM
8443 case R_PPC_TLSGD:
8444 case R_PPC_TLSLD:
7619e7c7
AM
8445 case R_PPC_EMB_MRKREF:
8446 case R_PPC_GNU_VTINHERIT:
8447 case R_PPC_GNU_VTENTRY:
c316a17c 8448 goto copy_reloc;
7595d193 8449
7619e7c7
AM
8450 /* GOT16 relocations. Like an ADDR16 using the symbol's
8451 address in the GOT as relocation value instead of the
8452 symbol's value itself. Also, create a GOT entry for the
8453 symbol and put the symbol value there. */
8454 case R_PPC_GOT_TLSGD16:
8455 case R_PPC_GOT_TLSGD16_LO:
8456 case R_PPC_GOT_TLSGD16_HI:
8457 case R_PPC_GOT_TLSGD16_HA:
8458 tls_type = TLS_TLS | TLS_GD;
8459 goto dogot;
8460
8461 case R_PPC_GOT_TLSLD16:
8462 case R_PPC_GOT_TLSLD16_LO:
8463 case R_PPC_GOT_TLSLD16_HI:
8464 case R_PPC_GOT_TLSLD16_HA:
8465 tls_type = TLS_TLS | TLS_LD;
8466 goto dogot;
8467
8468 case R_PPC_GOT_TPREL16:
8469 case R_PPC_GOT_TPREL16_LO:
8470 case R_PPC_GOT_TPREL16_HI:
8471 case R_PPC_GOT_TPREL16_HA:
8472 tls_type = TLS_TLS | TLS_TPREL;
8473 goto dogot;
8474
8475 case R_PPC_GOT_DTPREL16:
8476 case R_PPC_GOT_DTPREL16_LO:
8477 case R_PPC_GOT_DTPREL16_HI:
8478 case R_PPC_GOT_DTPREL16_HA:
8479 tls_type = TLS_TLS | TLS_DTPREL;
8480 goto dogot;
8481
8482 case R_PPC_GOT16:
8483 case R_PPC_GOT16_LO:
8484 case R_PPC_GOT16_HI:
8485 case R_PPC_GOT16_HA:
727fc41e 8486 tls_mask = 0;
7619e7c7
AM
8487 dogot:
8488 {
8489 /* Relocation is to the entry for this symbol in the global
8490 offset table. */
8491 bfd_vma off;
8492 bfd_vma *offp;
8493 unsigned long indx;
8494
ce558b89 8495 if (htab->elf.sgot == NULL)
7619e7c7
AM
8496 abort ();
8497
8498 indx = 0;
8499 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8500 && (h == NULL
f5385ebf 8501 || !h->def_dynamic))
7619e7c7
AM
8502 offp = &htab->tlsld_got.offset;
8503 else if (h != NULL)
8504 {
f0158f44
AM
8505 if (!htab->elf.dynamic_sections_created
8506 || h->dynindx == -1
8507 || SYMBOL_REFERENCES_LOCAL (info, h)
21d68fcd 8508 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
7619e7c7
AM
8509 /* This is actually a static link, or it is a
8510 -Bsymbolic link and the symbol is defined
8511 locally, or the symbol was forced to be local
8512 because of a version file. */
8513 ;
8514 else
8515 {
8516 indx = h->dynindx;
8517 unresolved_reloc = FALSE;
8518 }
8519 offp = &h->got.offset;
8520 }
8521 else
8522 {
8523 if (local_got_offsets == NULL)
8524 abort ();
8525 offp = &local_got_offsets[r_symndx];
8526 }
8527
8528 /* The offset must always be a multiple of 4. We use the
8529 least significant bit to record whether we have already
8530 processed this entry. */
8531 off = *offp;
8532 if ((off & 1) != 0)
8533 off &= ~1;
8534 else
8535 {
70bccea4
AM
8536 unsigned int tls_m = (tls_mask
8537 & (TLS_LD | TLS_GD | TLS_DTPREL
8538 | TLS_TPREL | TLS_TPRELGD));
8539
8540 if (offp == &htab->tlsld_got.offset)
8541 tls_m = TLS_LD;
8542 else if (h == NULL
f5385ebf 8543 || !h->def_dynamic)
70bccea4
AM
8544 tls_m &= ~TLS_LD;
8545
8546 /* We might have multiple got entries for this sym.
8547 Initialize them all. */
8548 do
7619e7c7 8549 {
70bccea4
AM
8550 int tls_ty = 0;
8551
8552 if ((tls_m & TLS_LD) != 0)
7619e7c7 8553 {
70bccea4
AM
8554 tls_ty = TLS_TLS | TLS_LD;
8555 tls_m &= ~TLS_LD;
8556 }
8557 else if ((tls_m & TLS_GD) != 0)
8558 {
8559 tls_ty = TLS_TLS | TLS_GD;
8560 tls_m &= ~TLS_GD;
8561 }
8562 else if ((tls_m & TLS_DTPREL) != 0)
8563 {
8564 tls_ty = TLS_TLS | TLS_DTPREL;
8565 tls_m &= ~TLS_DTPREL;
8566 }
8567 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8568 {
8569 tls_ty = TLS_TLS | TLS_TPREL;
8570 tls_m = 0;
7619e7c7 8571 }
7619e7c7 8572
70bccea4 8573 /* Generate relocs for the dynamic linker. */
f0158f44
AM
8574 if (indx != 0
8575 || (bfd_link_pic (info)
8576 && (h == NULL
21d68fcd 8577 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
f0158f44 8578 || offp == &htab->tlsld_got.offset)))
7619e7c7 8579 {
ce558b89 8580 asection *rsec = htab->elf.srelgot;
91d6fa6a 8581 bfd_byte * loc;
91e21fb7 8582
0bed072f 8583 if (ifunc != NULL)
82e66161
AM
8584 {
8585 rsec = htab->elf.irelplt;
8586 if (indx == 0)
8587 htab->local_ifunc_resolver = 1;
8588 else if (is_static_defined (h))
8589 htab->maybe_local_ifunc_resolver = 1;
8590 }
ce558b89
AM
8591 outrel.r_offset = (htab->elf.sgot->output_section->vma
8592 + htab->elf.sgot->output_offset
70bccea4 8593 + off);
e515b051 8594 outrel.r_addend = 0;
70bccea4
AM
8595 if (tls_ty & (TLS_LD | TLS_GD))
8596 {
8597 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8598 if (tls_ty == (TLS_TLS | TLS_GD))
8599 {
25f23106
AM
8600 loc = rsec->contents;
8601 loc += (rsec->reloc_count++
70bccea4
AM
8602 * sizeof (Elf32_External_Rela));
8603 bfd_elf32_swap_reloca_out (output_bfd,
8604 &outrel, loc);
e515b051 8605 outrel.r_offset += 4;
70bccea4
AM
8606 outrel.r_info
8607 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8608 }
8609 }
8610 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8611 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8612 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8613 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8614 else if (indx != 0)
70bccea4 8615 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8616 else if (ifunc != NULL)
8617 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8618 else
8619 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8620 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8621 {
8622 outrel.r_addend += relocation;
8623 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8624 {
8625 if (htab->elf.tls_sec == NULL)
8626 outrel.r_addend = 0;
8627 else
8628 outrel.r_addend -= htab->elf.tls_sec->vma;
8629 }
e515b051 8630 }
25f23106
AM
8631 loc = rsec->contents;
8632 loc += (rsec->reloc_count++
70bccea4
AM
8633 * sizeof (Elf32_External_Rela));
8634 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8635 }
8636
70bccea4
AM
8637 /* Init the .got section contents if we're not
8638 emitting a reloc. */
8639 else
7619e7c7 8640 {
70bccea4 8641 bfd_vma value = relocation;
f0158f44
AM
8642 int tlsopt = (htab->plt_type == PLT_NEW
8643 && !htab->params->no_tls_get_addr_opt
8644 && htab->tls_get_addr != NULL
8645 && htab->tls_get_addr->plt.plist != NULL);
70bccea4 8646
f0158f44 8647 if (tls_ty != 0)
70bccea4 8648 {
989f9879
AM
8649 if (htab->elf.tls_sec == NULL)
8650 value = 0;
8651 else
8652 {
f0158f44
AM
8653 if (tls_ty & TLS_LD)
8654 value = 0;
8655 else
8656 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8657 if ((tls_ty & TLS_TPREL)
8658 || (tlsopt && !(tls_ty & TLS_DTPREL)))
989f9879
AM
8659 value += DTP_OFFSET - TP_OFFSET;
8660 }
70bccea4 8661
f0158f44 8662 if (tls_ty & (TLS_LD | TLS_GD))
7b609f53 8663 {
95f0d0d2 8664 bfd_put_32 (input_bfd, value,
ce558b89 8665 htab->elf.sgot->contents + off + 4);
f0158f44 8666 value = !tlsopt;
7b609f53 8667 }
70bccea4 8668 }
95f0d0d2 8669 bfd_put_32 (input_bfd, value,
ce558b89 8670 htab->elf.sgot->contents + off);
7619e7c7 8671 }
70bccea4
AM
8672
8673 off += 4;
8674 if (tls_ty & (TLS_LD | TLS_GD))
8675 off += 4;
7619e7c7 8676 }
70bccea4
AM
8677 while (tls_m != 0);
8678
8679 off = *offp;
8680 *offp = off | 1;
7619e7c7
AM
8681 }
8682
8683 if (off >= (bfd_vma) -2)
8684 abort ();
8685
70bccea4
AM
8686 if ((tls_type & TLS_TLS) != 0)
8687 {
8688 if (tls_type != (TLS_TLS | TLS_LD))
8689 {
8690 if ((tls_mask & TLS_LD) != 0
8691 && !(h == NULL
f5385ebf 8692 || !h->def_dynamic))
70bccea4
AM
8693 off += 8;
8694 if (tls_type != (TLS_TLS | TLS_GD))
8695 {
8696 if ((tls_mask & TLS_GD) != 0)
8697 off += 8;
8698 if (tls_type != (TLS_TLS | TLS_DTPREL))
8699 {
8700 if ((tls_mask & TLS_DTPREL) != 0)
8701 off += 4;
8702 }
8703 }
8704 }
8705 }
8706
d3e454b9
AM
8707 /* If here for a picfixup, we're done. */
8708 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8709 goto copy_reloc;
d3e454b9 8710
ce558b89
AM
8711 relocation = (htab->elf.sgot->output_section->vma
8712 + htab->elf.sgot->output_offset
e87d4038
AM
8713 + off
8714 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8715
8716 /* Addends on got relocations don't make much sense.
8717 x+off@got is actually x@got+off, and since the got is
8718 generated by a hash table traversal, the value in the
8719 got at entry m+n bears little relation to the entry m. */
8720 if (addend != 0)
25f53a85 8721 info->callbacks->einfo
695344c0 8722 /* xgettext:c-format */
174d0a74 8723 (_("%H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8724 input_bfd, input_section, rel->r_offset,
7b609f53 8725 howto->name,
7619e7c7
AM
8726 sym_name);
8727 }
86c95733 8728 break;
7619e7c7 8729
86c95733 8730 /* Relocations that need no special processing. */
7619e7c7 8731 case R_PPC_LOCAL24PC:
252b5132
RH
8732 /* It makes no sense to point a local relocation
8733 at a symbol not in this object. */
7b609f53 8734 if (unresolved_reloc)
252b5132 8735 {
1a72702b
AM
8736 (*info->callbacks->undefined_symbol) (info,
8737 h->root.root.string,
8738 input_bfd,
8739 input_section,
8740 rel->r_offset,
8741 TRUE);
c316a17c 8742 goto copy_reloc;
252b5132 8743 }
888a7fc3
AM
8744 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8745 {
8746 /* @local on an ifunc does not really make sense since
8747 the ifunc resolver can take you anywhere. More
8748 seriously, calls to ifuncs must go through a plt call
8749 stub, and for pic the plt call stubs uses r30 to
8750 access the PLT. The problem is that a call that is
8751 local won't have the +32k reloc addend trick marking
8752 -fPIC code, so the linker won't know whether r30 is
8753 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8754 /* xgettext:c-format */
174d0a74 8755 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
888a7fc3
AM
8756 input_bfd, input_section, rel->r_offset,
8757 h->root.root.string);
8758 }
252b5132
RH
8759 break;
8760
7619e7c7
AM
8761 case R_PPC_DTPREL16:
8762 case R_PPC_DTPREL16_LO:
8763 case R_PPC_DTPREL16_HI:
8764 case R_PPC_DTPREL16_HA:
989f9879
AM
8765 if (htab->elf.tls_sec != NULL)
8766 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8767 break;
8768
70bccea4
AM
8769 /* Relocations that may need to be propagated if this is a shared
8770 object. */
7619e7c7
AM
8771 case R_PPC_TPREL16:
8772 case R_PPC_TPREL16_LO:
8773 case R_PPC_TPREL16_HI:
8774 case R_PPC_TPREL16_HA:
766bc656
AM
8775 if (h != NULL
8776 && h->root.type == bfd_link_hash_undefweak
8777 && h->dynindx == -1)
8778 {
8779 /* Make this relocation against an undefined weak symbol
8780 resolve to zero. This is really just a tweak, since
8781 code using weak externs ought to check that they are
8782 defined before using them. */
8783 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 8784 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
8785 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8786 if (insn != 0)
95f0d0d2 8787 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
8788 break;
8789 }
989f9879
AM
8790 if (htab->elf.tls_sec != NULL)
8791 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8792 /* The TPREL16 relocs shouldn't really be used in shared
8793 libs as they will result in DT_TEXTREL being set, but
8794 support them anyway. */
8795 goto dodyn;
8796
8797 case R_PPC_TPREL32:
989f9879
AM
8798 if (htab->elf.tls_sec != NULL)
8799 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8800 goto dodyn;
8801
8802 case R_PPC_DTPREL32:
989f9879
AM
8803 if (htab->elf.tls_sec != NULL)
8804 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8805 goto dodyn;
8806
e515b051
AM
8807 case R_PPC_DTPMOD32:
8808 relocation = 1;
8809 addend = 0;
8810 goto dodyn;
8811
d7128ce4
AM
8812 case R_PPC_REL16:
8813 case R_PPC_REL16_LO:
8814 case R_PPC_REL16_HI:
8815 case R_PPC_REL16_HA:
a680de9a 8816 case R_PPC_REL16DX_HA:
d7128ce4
AM
8817 break;
8818
7619e7c7 8819 case R_PPC_REL32:
625af618
AM
8820 if (h == NULL || h == htab->elf.hgot)
8821 break;
8822 /* fall through */
8823
8824 case R_PPC_ADDR32:
8825 case R_PPC_ADDR16:
8826 case R_PPC_ADDR16_LO:
8827 case R_PPC_ADDR16_HI:
8828 case R_PPC_ADDR16_HA:
8829 case R_PPC_UADDR32:
8830 case R_PPC_UADDR16:
8831 goto dodyn;
8832
b9c361e0
JL
8833 case R_PPC_VLE_REL8:
8834 case R_PPC_VLE_REL15:
8835 case R_PPC_VLE_REL24:
625af618 8836 case R_PPC_REL24:
7619e7c7
AM
8837 case R_PPC_REL14:
8838 case R_PPC_REL14_BRTAKEN:
8839 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8840 /* If these relocations are not to a named symbol, they can be
8841 handled right here, no need to bother the dynamic linker. */
89200bf8 8842 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8843 || h == htab->elf.hgot)
252b5132 8844 break;
70bccea4 8845 /* fall through */
252b5132 8846
7619e7c7 8847 case R_PPC_ADDR24:
7619e7c7
AM
8848 case R_PPC_ADDR14:
8849 case R_PPC_ADDR14_BRTAKEN:
8850 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8851 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8852 break;
8853 /* fall through */
8854
7619e7c7 8855 dodyn:
3348747a
NS
8856 if ((input_section->flags & SEC_ALLOC) == 0
8857 || is_vxworks_tls)
c87b5a93 8858 break;
c87b5a93 8859
0e1862bb 8860 if ((bfd_link_pic (info)
89200bf8
AM
8861 && !(h != NULL
8862 && ((h->root.type == bfd_link_hash_undefined
954b63d4 8863 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
21d68fcd 8864 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1d483afe 8865 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8866 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8867 || (ELIMINATE_COPY_RELOCS
0e1862bb 8868 && !bfd_link_pic (info)
ee05f2fe
AM
8869 && h != NULL
8870 && h->dynindx != -1
f5385ebf 8871 && !h->non_got_ref
d3e454b9
AM
8872 && !h->def_regular
8873 && !(h->protected_def
8874 && ppc_elf_hash_entry (h)->has_addr16_ha
8875 && ppc_elf_hash_entry (h)->has_addr16_lo
8876 && htab->params->pic_fixup > 0)))
252b5132 8877 {
0bb2d96a 8878 int skip;
f95f8542
AM
8879 bfd_byte *loc;
8880 asection *sreloc;
82e66161
AM
8881 long indx = 0;
8882
252b5132 8883#ifdef DEBUG
55fd94b0
AM
8884 fprintf (stderr, "ppc_elf_relocate_section needs to "
8885 "create relocation for %s\n",
70bccea4
AM
8886 (h && h->root.root.string
8887 ? h->root.root.string : "<unknown>"));
252b5132
RH
8888#endif
8889
8890 /* When generating a shared object, these relocations
70bccea4
AM
8891 are copied into the output file to be resolved at run
8892 time. */
0bb2d96a 8893 skip = 0;
5b914448
AM
8894 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8895 input_section,
8896 rel->r_offset);
0bb2d96a
JJ
8897 if (outrel.r_offset == (bfd_vma) -1
8898 || outrel.r_offset == (bfd_vma) -2)
8899 skip = (int) outrel.r_offset;
252b5132
RH
8900 outrel.r_offset += (input_section->output_section->vma
8901 + input_section->output_offset);
8902
8903 if (skip)
8904 memset (&outrel, 0, sizeof outrel);
21d68fcd 8905 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8906 {
82e66161
AM
8907 indx = h->dynindx;
8908 BFD_ASSERT (indx != -1);
7619e7c7 8909 unresolved_reloc = FALSE;
82e66161 8910 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
8911 outrel.r_addend = rel->r_addend;
8912 }
8913 else
8914 {
47388f4c
AM
8915 outrel.r_addend = relocation + rel->r_addend;
8916
25f23106 8917 if (r_type != R_PPC_ADDR32)
252b5132 8918 {
25f23106
AM
8919 if (ifunc != NULL)
8920 {
8921 /* If we get here when building a static
8922 executable, then the libc startup function
8923 responsible for applying indirect function
8924 relocations is going to complain about
8925 the reloc type.
8926 If we get here when building a dynamic
8927 executable, it will be because we have
8928 a text relocation. The dynamic loader
8929 will set the text segment writable and
8930 non-executable to apply text relocations.
8931 So we'll segfault when trying to run the
8932 indirection function to resolve the reloc. */
25f53a85 8933 info->callbacks->einfo
695344c0 8934 /* xgettext:c-format */
174d0a74 8935 (_("%H: relocation %s for indirect "
25f53a85
AM
8936 "function %s unsupported\n"),
8937 input_bfd, input_section, rel->r_offset,
25f23106
AM
8938 howto->name,
8939 sym_name);
8940 ret = FALSE;
8941 }
cf35638d 8942 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8943 ;
252b5132
RH
8944 else if (sec == NULL || sec->owner == NULL)
8945 {
8946 bfd_set_error (bfd_error_bad_value);
89200bf8 8947 ret = FALSE;
252b5132
RH
8948 }
8949 else
8950 {
8951 asection *osec;
8952
47388f4c
AM
8953 /* We are turning this relocation into one
8954 against a section symbol. It would be
8955 proper to subtract the symbol's value,
8956 osec->vma, from the emitted reloc addend,
25f23106
AM
8957 but ld.so expects buggy relocs.
8958 FIXME: Why not always use a zero index? */
252b5132
RH
8959 osec = sec->output_section;
8960 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8961 if (indx == 0)
8962 {
8963 osec = htab->elf.text_index_section;
8964 indx = elf_section_data (osec)->dynindx;
8965 }
8966 BFD_ASSERT (indx != 0);
252b5132 8967#ifdef DEBUG
74541ad4 8968 if (indx == 0)
e460dd0d 8969 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8970 indx, osec->name, osec->flags,
8971 h->root.root.string);
252b5132
RH
8972#endif
8973 }
8974
8975 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8976 }
25f23106
AM
8977 else if (ifunc != NULL)
8978 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8979 else
8980 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8981 }
8982
82e66161
AM
8983 sreloc = elf_section_data (input_section)->sreloc;
8984 if (ifunc)
8985 {
8986 sreloc = htab->elf.irelplt;
8987 if (indx == 0)
8988 htab->local_ifunc_resolver = 1;
8989 else if (is_static_defined (h))
8990 htab->maybe_local_ifunc_resolver = 1;
8991 }
8992 if (sreloc == NULL)
8993 return FALSE;
8994
947216bf
AM
8995 loc = sreloc->contents;
8996 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8997 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8998
2243deae 8999 if (skip == -1)
c316a17c 9000 goto copy_reloc;
2243deae 9001
f0158f44
AM
9002 /* This reloc will be computed at runtime. Clear the memory
9003 so that it contains a predictable value for prelink. */
9004 if (!skip)
2243deae
L
9005 {
9006 relocation = howto->pc_relative ? outrel.r_offset : 0;
9007 addend = 0;
9008 break;
9009 }
252b5132 9010 }
f0158f44
AM
9011 else if (r_type == R_PPC_DTPMOD32
9012 && htab->plt_type == PLT_NEW
9013 && !htab->params->no_tls_get_addr_opt
9014 && htab->tls_get_addr != NULL
9015 && htab->tls_get_addr->plt.plist != NULL)
9016 {
9017 /* Set up for __tls_get_addr_opt stub when this entry
9018 does not have dynamic relocs. */
9019 relocation = 0;
9020 /* Set up the next word for local dynamic. If it turns
9021 out to be global dynamic, the reloc will overwrite
9022 this value. */
9023 if (rel->r_offset + 8 <= input_section->size)
9024 bfd_put_32 (input_bfd, DTP_OFFSET - TP_OFFSET,
9025 contents + rel->r_offset + 4);
9026 }
9027 else if (r_type == R_PPC_DTPREL32
9028 && htab->plt_type == PLT_NEW
9029 && !htab->params->no_tls_get_addr_opt
9030 && htab->tls_get_addr != NULL
9031 && htab->tls_get_addr->plt.plist != NULL
9032 && rel > relocs
9033 && rel[-1].r_info == ELF32_R_INFO (r_symndx, R_PPC_DTPMOD32)
9034 && rel[-1].r_offset + 4 == rel->r_offset)
9035 {
9036 /* __tls_get_addr_opt stub value. */
9037 addend += DTP_OFFSET - TP_OFFSET;
9038 }
252b5132
RH
9039 break;
9040
32af9f6e
AM
9041 case R_PPC_RELAX_PLT:
9042 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
9043 if (h != NULL)
9044 {
32af9f6e
AM
9045 struct plt_entry *ent;
9046 bfd_vma got2_addend = 0;
9047
9048 if (r_type == R_PPC_RELAX_PLTREL24)
9049 {
0e1862bb 9050 if (bfd_link_pic (info))
32af9f6e
AM
9051 got2_addend = addend;
9052 addend = 0;
9053 }
9054 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
9055 if (htab->plt_type == PLT_NEW)
9056 relocation = (htab->glink->output_section->vma
9057 + htab->glink->output_offset
9058 + ent->glink_offset);
9059 else
ce558b89
AM
9060 relocation = (htab->elf.splt->output_section->vma
9061 + htab->elf.splt->output_offset
de972ffa
AM
9062 + ent->plt.offset);
9063 }
1a0670f3 9064 /* Fall through. */
b4a38de6 9065
32af9f6e 9066 case R_PPC_RELAX:
9abc968f 9067 {
53291d1f
AM
9068 const int *stub;
9069 size_t size;
9070 size_t insn_offset = rel->r_offset;
9071 unsigned int insn;
9abc968f 9072
0e1862bb 9073 if (bfd_link_pic (info))
53291d1f
AM
9074 {
9075 relocation -= (input_section->output_section->vma
9076 + input_section->output_offset
9077 + rel->r_offset - 4);
9078 stub = shared_stub_entry;
95f0d0d2
AM
9079 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
9080 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
9081 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
9082 stub += 3;
9083 size = ARRAY_SIZE (shared_stub_entry) - 3;
9084 }
9085 else
9086 {
9087 stub = stub_entry;
9088 size = ARRAY_SIZE (stub_entry);
9089 }
9abc968f 9090
9abc968f 9091 relocation += addend;
0e1862bb 9092 if (bfd_link_relocatable (info))
53291d1f
AM
9093 relocation = 0;
9094
9095 /* First insn is HA, second is LO. */
9096 insn = *stub++;
9097 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 9098 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9099 insn_offset += 4;
9100
9101 insn = *stub++;
9102 insn |= relocation & 0xffff;
95f0d0d2 9103 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9104 insn_offset += 4;
9105 size -= 2;
9106
9107 while (size != 0)
9108 {
9109 insn = *stub++;
9110 --size;
95f0d0d2 9111 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9112 insn_offset += 4;
9113 }
9bc4e62b
NS
9114
9115 /* Rewrite the reloc and convert one of the trailing nop
9116 relocs to describe this relocation. */
9117 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9118 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
9119 wrel->r_offset = rel->r_offset + d_offset;
9120 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9121 wrel->r_addend = rel->r_addend;
9122 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9123 wrel++, rel++;
9124 wrel->r_offset += 4;
9125 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 9126 }
8517fae7 9127 continue;
deaaf2f3 9128
70bccea4 9129 /* Indirect .sdata relocation. */
7619e7c7 9130 case R_PPC_EMB_SDAI16:
c9a2f333 9131 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
9132 if (!is_static_defined (htab->sdata[0].sym))
9133 {
9134 unresolved_reloc = TRUE;
9135 break;
9136 }
7619e7c7 9137 relocation
76750a2f
AM
9138 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9139 h, relocation, rel);
bd6c6e2b 9140 addend = 0;
252b5132
RH
9141 break;
9142
70bccea4 9143 /* Indirect .sdata2 relocation. */
7619e7c7 9144 case R_PPC_EMB_SDA2I16:
c9a2f333 9145 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9146 if (!is_static_defined (htab->sdata[1].sym))
9147 {
9148 unresolved_reloc = TRUE;
9149 break;
9150 }
7619e7c7 9151 relocation
76750a2f
AM
9152 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9153 h, relocation, rel);
bd6c6e2b 9154 addend = 0;
252b5132
RH
9155 break;
9156
70bccea4
AM
9157 /* Handle the TOC16 reloc. We want to use the offset within the .got
9158 section, not the actual VMA. This is appropriate when generating
9159 an embedded ELF object, for which the .got section acts like the
9160 AIX .toc section. */
7619e7c7 9161 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9162 if (sec == NULL || sec->output_section == NULL)
9163 {
9164 unresolved_reloc = TRUE;
9165 break;
9166 }
a0f49396
NC
9167 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9168 ".got") == 0
9169 || strcmp (bfd_get_section_name (sec->owner, sec),
9170 ".cgot") == 0);
252b5132 9171
3b4f3a11 9172 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9173 break;
9174
7619e7c7 9175 case R_PPC_PLTREL24:
f75e0e33
AM
9176 if (h != NULL && ifunc == NULL)
9177 {
cbf95972
AM
9178 struct plt_entry *ent;
9179
9180 ent = find_plt_ent (&h->plt.plist, got2,
9181 bfd_link_pic (info) ? addend : 0);
f75e0e33 9182 if (ent == NULL
ce558b89 9183 || htab->elf.splt == NULL)
f75e0e33
AM
9184 {
9185 /* We didn't make a PLT entry for this symbol. This
9186 happens when statically linking PIC code, or when
9187 using -Bsymbolic. */
9188 }
9189 else
9190 {
9191 /* Relocation is to the entry for this symbol in the
9192 procedure linkage table. */
9193 unresolved_reloc = FALSE;
9194 if (htab->plt_type == PLT_NEW)
9195 relocation = (htab->glink->output_section->vma
9196 + htab->glink->output_offset
9197 + ent->glink_offset);
9198 else
ce558b89
AM
9199 relocation = (htab->elf.splt->output_section->vma
9200 + htab->elf.splt->output_offset
f75e0e33
AM
9201 + ent->plt.offset);
9202 }
9203 }
252b5132 9204
f75e0e33
AM
9205 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9206 addend specifies the GOT pointer offset within .got2.
9207 Don't apply it to the relocation field. */
9208 addend = 0;
8da6118f 9209 break;
252b5132 9210
70bccea4 9211 /* Relocate against _SDA_BASE_. */
7619e7c7 9212 case R_PPC_SDAREL16:
252b5132
RH
9213 {
9214 const char *name;
bd6c6e2b 9215 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9216
bd6c6e2b
AM
9217 if (sec == NULL
9218 || sec->output_section == NULL
9219 || !is_static_defined (sda))
3b4f3a11
AM
9220 {
9221 unresolved_reloc = TRUE;
9222 break;
9223 }
bd6c6e2b 9224 addend -= SYM_VAL (sda);
3b4f3a11 9225
a0f49396 9226 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9227 if (!(strcmp (name, ".sdata") == 0
9228 || strcmp (name, ".sbss") == 0))
252b5132 9229 {
25f53a85 9230 info->callbacks->einfo
695344c0 9231 /* xgettext:c-format */
8de848d8 9232 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9233 "in the wrong output section (%s)\n"),
d003868e 9234 input_bfd,
55fd94b0
AM
9235 sym_name,
9236 howto->name,
9237 name);
252b5132 9238 }
252b5132
RH
9239 }
9240 break;
9241
70bccea4 9242 /* Relocate against _SDA2_BASE_. */
7619e7c7 9243 case R_PPC_EMB_SDA2REL:
252b5132
RH
9244 {
9245 const char *name;
bd6c6e2b 9246 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9247
bd6c6e2b
AM
9248 if (sec == NULL
9249 || sec->output_section == NULL
9250 || !is_static_defined (sda))
3b4f3a11
AM
9251 {
9252 unresolved_reloc = TRUE;
9253 break;
9254 }
bd6c6e2b 9255 addend -= SYM_VAL (sda);
3b4f3a11 9256
a0f49396 9257 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9258 if (!(strcmp (name, ".sdata2") == 0
9259 || strcmp (name, ".sbss2") == 0))
252b5132 9260 {
25f53a85 9261 info->callbacks->einfo
695344c0 9262 /* xgettext:c-format */
8de848d8 9263 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9264 "in the wrong output section (%s)\n"),
d003868e 9265 input_bfd,
55fd94b0
AM
9266 sym_name,
9267 howto->name,
9268 name);
252b5132 9269 }
252b5132
RH
9270 }
9271 break;
9272
b9c361e0 9273 case R_PPC_VLE_LO16A:
86c95733 9274 relocation = relocation + addend;
08dc996f
AM
9275 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9276 contents + rel->r_offset, relocation,
9277 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9278 goto copy_reloc;
b9c361e0
JL
9279
9280 case R_PPC_VLE_LO16D:
86c95733 9281 relocation = relocation + addend;
08dc996f
AM
9282 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9283 contents + rel->r_offset, relocation,
9284 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9285 goto copy_reloc;
b9c361e0
JL
9286
9287 case R_PPC_VLE_HI16A:
86c95733 9288 relocation = (relocation + addend) >> 16;
08dc996f
AM
9289 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9290 contents + rel->r_offset, relocation,
9291 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9292 goto copy_reloc;
b9c361e0
JL
9293
9294 case R_PPC_VLE_HI16D:
86c95733 9295 relocation = (relocation + addend) >> 16;
08dc996f
AM
9296 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9297 contents + rel->r_offset, relocation,
9298 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9299 goto copy_reloc;
b9c361e0
JL
9300
9301 case R_PPC_VLE_HA16A:
86c95733 9302 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9303 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9304 contents + rel->r_offset, relocation,
9305 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9306 goto copy_reloc;
b9c361e0
JL
9307
9308 case R_PPC_VLE_HA16D:
86c95733 9309 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9310 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9311 contents + rel->r_offset, relocation,
9312 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9313 goto copy_reloc;
b9c361e0 9314
70bccea4 9315 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9316 case R_PPC_EMB_SDA21:
b9c361e0 9317 case R_PPC_VLE_SDA21:
7619e7c7 9318 case R_PPC_EMB_RELSDA:
b9c361e0 9319 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9320 {
9321 const char *name;
9322 int reg;
86c95733 9323 unsigned int insn;
bd6c6e2b 9324 struct elf_link_hash_entry *sda = NULL;
252b5132 9325
3b4f3a11
AM
9326 if (sec == NULL || sec->output_section == NULL)
9327 {
9328 unresolved_reloc = TRUE;
9329 break;
9330 }
9331
a0f49396 9332 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9333 if (strcmp (name, ".sdata") == 0
9334 || strcmp (name, ".sbss") == 0)
252b5132
RH
9335 {
9336 reg = 13;
bd6c6e2b 9337 sda = htab->sdata[0].sym;
252b5132 9338 }
93d1b056
AM
9339 else if (strcmp (name, ".sdata2") == 0
9340 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9341 {
9342 reg = 2;
bd6c6e2b 9343 sda = htab->sdata[1].sym;
252b5132 9344 }
8da6118f
KH
9345 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9346 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9347 {
9348 reg = 0;
9349 }
252b5132
RH
9350 else
9351 {
25f53a85 9352 info->callbacks->einfo
695344c0 9353 /* xgettext:c-format */
8de848d8 9354 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9355 "in the wrong output section (%s)\n"),
d003868e 9356 input_bfd,
55fd94b0
AM
9357 sym_name,
9358 howto->name,
9359 name);
252b5132
RH
9360
9361 bfd_set_error (bfd_error_bad_value);
b34976b6 9362 ret = FALSE;
c316a17c 9363 goto copy_reloc;
252b5132
RH
9364 }
9365
bd6c6e2b
AM
9366 if (sda != NULL)
9367 {
9368 if (!is_static_defined (sda))
9369 {
9370 unresolved_reloc = TRUE;
9371 break;
9372 }
9373 addend -= SYM_VAL (sda);
9374 }
9375
95f0d0d2 9376 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9377 if (reg == 0
9378 && (r_type == R_PPC_VLE_SDA21
9379 || r_type == R_PPC_VLE_SDA21_LO))
9380 {
86c95733
AM
9381 relocation = relocation + addend;
9382 addend = 0;
9383
9384 /* Force e_li insn, keeping RT from original insn. */
9385 insn &= 0x1f << 21;
9386 insn |= 28u << 26;
9387
9388 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9389 /* Top 4 bits of value to 17..20. */
9390 insn |= (relocation & 0xf0000) >> 5;
9391 /* Next 5 bits of the value to 11..15. */
9392 insn |= (relocation & 0xf800) << 5;
9393 /* And the final 11 bits of the value to bits 21 to 31. */
9394 insn |= relocation & 0x7ff;
9395
95f0d0d2 9396 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9397
9398 if (r_type == R_PPC_VLE_SDA21
9399 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9400 goto overflow;
c316a17c 9401 goto copy_reloc;
b9c361e0
JL
9402 }
9403 else if (r_type == R_PPC_EMB_SDA21
9404 || r_type == R_PPC_VLE_SDA21
9405 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9406 {
86c95733 9407 /* Fill in register field. */
252b5132 9408 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9409 }
95f0d0d2 9410 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9411 }
9412 break;
9413
b9c361e0
JL
9414 case R_PPC_VLE_SDAREL_LO16A:
9415 case R_PPC_VLE_SDAREL_LO16D:
9416 case R_PPC_VLE_SDAREL_HI16A:
9417 case R_PPC_VLE_SDAREL_HI16D:
9418 case R_PPC_VLE_SDAREL_HA16A:
9419 case R_PPC_VLE_SDAREL_HA16D:
9420 {
9421 bfd_vma value;
9422 const char *name;
b9c361e0
JL
9423 struct elf_link_hash_entry *sda = NULL;
9424
9425 if (sec == NULL || sec->output_section == NULL)
9426 {
9427 unresolved_reloc = TRUE;
9428 break;
9429 }
9430
a0f49396 9431 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9432 if (strcmp (name, ".sdata") == 0
9433 || strcmp (name, ".sbss") == 0)
5499c7c7 9434 sda = htab->sdata[0].sym;
93d1b056
AM
9435 else if (strcmp (name, ".sdata2") == 0
9436 || strcmp (name, ".sbss2") == 0)
5499c7c7 9437 sda = htab->sdata[1].sym;
b9c361e0
JL
9438 else
9439 {
4eca0228 9440 _bfd_error_handler
695344c0 9441 /* xgettext:c-format */
b9c361e0
JL
9442 (_("%B: the target (%s) of a %s relocation is "
9443 "in the wrong output section (%s)"),
9444 input_bfd,
9445 sym_name,
9446 howto->name,
9447 name);
9448
9449 bfd_set_error (bfd_error_bad_value);
9450 ret = FALSE;
c316a17c 9451 goto copy_reloc;
b9c361e0
JL
9452 }
9453
5499c7c7 9454 if (sda == NULL || !is_static_defined (sda))
b9c361e0 9455 {
5499c7c7
AM
9456 unresolved_reloc = TRUE;
9457 break;
b9c361e0 9458 }
5499c7c7 9459 value = relocation + addend - SYM_VAL (sda);
86c95733
AM
9460
9461 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9462 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9463 contents + rel->r_offset, value,
9464 split16a_type,
9465 htab->params->vle_reloc_fixup);
86c95733 9466 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9467 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9468 contents + rel->r_offset, value,
9469 split16d_type,
9470 htab->params->vle_reloc_fixup);
86c95733 9471 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9472 {
86c95733 9473 value = value >> 16;
08dc996f
AM
9474 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9475 contents + rel->r_offset, value,
9476 split16a_type,
9477 htab->params->vle_reloc_fixup);
b9c361e0 9478 }
86c95733 9479 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9480 {
86c95733 9481 value = value >> 16;
08dc996f
AM
9482 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9483 contents + rel->r_offset, value,
9484 split16d_type,
9485 htab->params->vle_reloc_fixup);
b9c361e0 9486 }
86c95733 9487 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9488 {
86c95733 9489 value = (value + 0x8000) >> 16;
08dc996f
AM
9490 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9491 contents + rel->r_offset, value,
9492 split16a_type,
9493 htab->params->vle_reloc_fixup);
b9c361e0 9494 }
86c95733 9495 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9496 {
86c95733 9497 value = (value + 0x8000) >> 16;
08dc996f
AM
9498 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9499 contents + rel->r_offset, value,
9500 split16d_type,
9501 htab->params->vle_reloc_fixup);
b9c361e0
JL
9502 }
9503 }
c316a17c 9504 goto copy_reloc;
b9c361e0 9505
70bccea4 9506 /* Relocate against the beginning of the section. */
7619e7c7
AM
9507 case R_PPC_SECTOFF:
9508 case R_PPC_SECTOFF_LO:
9509 case R_PPC_SECTOFF_HI:
9510 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9511 if (sec == NULL || sec->output_section == NULL)
9512 {
9513 unresolved_reloc = TRUE;
9514 break;
9515 }
252b5132 9516 addend -= sec->output_section->vma;
252b5132
RH
9517 break;
9518
70bccea4 9519 /* Negative relocations. */
7619e7c7
AM
9520 case R_PPC_EMB_NADDR32:
9521 case R_PPC_EMB_NADDR16:
9522 case R_PPC_EMB_NADDR16_LO:
9523 case R_PPC_EMB_NADDR16_HI:
9524 case R_PPC_EMB_NADDR16_HA:
8da6118f 9525 addend -= 2 * relocation;
252b5132
RH
9526 break;
9527
7619e7c7
AM
9528 case R_PPC_COPY:
9529 case R_PPC_GLOB_DAT:
9530 case R_PPC_JMP_SLOT:
9531 case R_PPC_RELATIVE:
e054468f 9532 case R_PPC_IRELATIVE:
7619e7c7
AM
9533 case R_PPC_PLT32:
9534 case R_PPC_PLTREL32:
9535 case R_PPC_PLT16_LO:
9536 case R_PPC_PLT16_HI:
9537 case R_PPC_PLT16_HA:
9538 case R_PPC_ADDR30:
9539 case R_PPC_EMB_RELSEC16:
9540 case R_PPC_EMB_RELST_LO:
9541 case R_PPC_EMB_RELST_HI:
9542 case R_PPC_EMB_RELST_HA:
9543 case R_PPC_EMB_BIT_FLD:
25f53a85 9544 info->callbacks->einfo
695344c0 9545 /* xgettext:c-format */
8de848d8 9546 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9547 input_bfd,
7619e7c7
AM
9548 howto->name,
9549 sym_name);
252b5132
RH
9550
9551 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9552 ret = FALSE;
c316a17c 9553 goto copy_reloc;
7619e7c7 9554 }
252b5132 9555
7619e7c7
AM
9556 /* Do any further special processing. */
9557 switch (r_type)
9558 {
9559 default:
9560 break;
9561
9562 case R_PPC_ADDR16_HA:
d7128ce4 9563 case R_PPC_REL16_HA:
a680de9a 9564 case R_PPC_REL16DX_HA:
7619e7c7
AM
9565 case R_PPC_SECTOFF_HA:
9566 case R_PPC_TPREL16_HA:
9567 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9568 case R_PPC_EMB_NADDR16_HA:
9569 case R_PPC_EMB_RELST_HA:
9570 /* It's just possible that this symbol is a weak symbol
7b609f53 9571 that's not actually defined anywhere. In that case,
7619e7c7
AM
9572 'sec' would be NULL, and we should leave the symbol
9573 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9574 if (sec == NULL)
9575 break;
1a0670f3 9576 /* Fall through. */
5c5f6e17
AM
9577
9578 case R_PPC_PLT16_HA:
9579 case R_PPC_GOT16_HA:
9580 case R_PPC_GOT_TLSGD16_HA:
9581 case R_PPC_GOT_TLSLD16_HA:
9582 case R_PPC_GOT_TPREL16_HA:
9583 case R_PPC_GOT_DTPREL16_HA:
9584 /* Add 0x10000 if sign bit in 0:15 is set.
9585 Bits 0:15 are not used. */
9586 addend += 0x8000;
7619e7c7 9587 break;
1fe532cf
AM
9588
9589 case R_PPC_ADDR16:
9590 case R_PPC_ADDR16_LO:
9591 case R_PPC_GOT16:
9592 case R_PPC_GOT16_LO:
9593 case R_PPC_SDAREL16:
9594 case R_PPC_SECTOFF:
9595 case R_PPC_SECTOFF_LO:
9596 case R_PPC_DTPREL16:
9597 case R_PPC_DTPREL16_LO:
9598 case R_PPC_TPREL16:
9599 case R_PPC_TPREL16_LO:
9600 case R_PPC_GOT_TLSGD16:
9601 case R_PPC_GOT_TLSGD16_LO:
9602 case R_PPC_GOT_TLSLD16:
9603 case R_PPC_GOT_TLSLD16_LO:
9604 case R_PPC_GOT_DTPREL16:
9605 case R_PPC_GOT_DTPREL16_LO:
9606 case R_PPC_GOT_TPREL16:
9607 case R_PPC_GOT_TPREL16_LO:
9608 {
9609 /* The 32-bit ABI lacks proper relocations to deal with
9610 certain 64-bit instructions. Prevent damage to bits
9611 that make up part of the insn opcode. */
9612 unsigned int insn, mask, lobit;
9613
95f0d0d2 9614 insn = bfd_get_32 (input_bfd,
c316a17c 9615 contents + rel->r_offset - d_offset);
1fe532cf
AM
9616 mask = 0;
9617 if (is_insn_ds_form (insn))
9618 mask = 3;
9619 else if (is_insn_dq_form (insn))
9620 mask = 15;
9621 else
9622 break;
a680de9a
PB
9623 relocation += addend;
9624 addend = insn & mask;
9625 lobit = mask & relocation;
1fe532cf
AM
9626 if (lobit != 0)
9627 {
a680de9a 9628 relocation ^= lobit;
1fe532cf 9629 info->callbacks->einfo
695344c0 9630 /* xgettext:c-format */
174d0a74 9631 (_("%H: error: %s against `%s' not a multiple of %u\n"),
1fe532cf
AM
9632 input_bfd, input_section, rel->r_offset,
9633 howto->name, sym_name, mask + 1);
9634 bfd_set_error (bfd_error_bad_value);
9635 ret = FALSE;
9636 }
1fe532cf
AM
9637 }
9638 break;
252b5132
RH
9639 }
9640
252b5132 9641#ifdef DEBUG
55fd94b0
AM
9642 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9643 "offset = %ld, addend = %ld\n",
252b5132 9644 howto->name,
8da6118f 9645 (int) r_type,
252b5132
RH
9646 sym_name,
9647 r_symndx,
7619e7c7 9648 (long) rel->r_offset,
8da6118f 9649 (long) addend);
252b5132
RH
9650#endif
9651
7619e7c7
AM
9652 if (unresolved_reloc
9653 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9654 && h->def_dynamic)
9655 && _bfd_elf_section_offset (output_bfd, info, input_section,
9656 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9657 {
25f53a85 9658 info->callbacks->einfo
695344c0 9659 /* xgettext:c-format */
174d0a74 9660 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9661 input_bfd, input_section, rel->r_offset,
7b609f53 9662 howto->name,
7619e7c7
AM
9663 sym_name);
9664 ret = FALSE;
9665 }
9666
86c95733
AM
9667 /* 16-bit fields in insns mostly have signed values, but a
9668 few insns have 16-bit unsigned values. Really, we should
9669 have different reloc types. */
9670 if (howto->complain_on_overflow != complain_overflow_dont
9671 && howto->dst_mask == 0xffff
9672 && (input_section->flags & SEC_CODE) != 0)
9673 {
9674 enum complain_overflow complain = complain_overflow_signed;
9675
9676 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9677 {
9678 unsigned int insn;
9679
9680 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9681 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9682 complain = complain_overflow_bitfield;
9683 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9684 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9685 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9686 complain = complain_overflow_unsigned;
9687 }
9688 if (howto->complain_on_overflow != complain)
9689 {
9690 alt_howto = *howto;
9691 alt_howto.complain_on_overflow = complain;
9692 howto = &alt_howto;
9693 }
9694 }
9695
a680de9a
PB
9696 if (r_type == R_PPC_REL16DX_HA)
9697 {
9698 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9699 if (rel->r_offset + 4 > input_section->size)
9700 r = bfd_reloc_outofrange;
9701 else
9702 {
9703 unsigned int insn;
9704
9705 relocation += addend;
9706 relocation -= (rel->r_offset
9707 + input_section->output_offset
9708 + input_section->output_section->vma);
9709 relocation >>= 16;
9710 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9711 insn &= ~0x1fffc1;
9712 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9713 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9714 r = bfd_reloc_ok;
9715 }
9716 }
9717 else
9718 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9719 rel->r_offset, relocation, addend);
252b5132 9720
7619e7c7 9721 if (r != bfd_reloc_ok)
252b5132 9722 {
7619e7c7 9723 if (r == bfd_reloc_overflow)
252b5132 9724 {
c3301df1 9725 overflow:
8131c122
AM
9726 /* On code like "if (foo) foo();" don't report overflow
9727 on a branch to zero when foo is undefined. */
9728 if (!warned
9729 && !(h != NULL
9730 && (h->root.type == bfd_link_hash_undefweak
9731 || h->root.type == bfd_link_hash_undefined)
9732 && is_branch_reloc (r_type)))
1a72702b
AM
9733 info->callbacks->reloc_overflow
9734 (info, (h ? &h->root : NULL), sym_name, howto->name,
9735 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9736 }
9737 else
9738 {
25f53a85 9739 info->callbacks->einfo
695344c0 9740 /* xgettext:c-format */
174d0a74 9741 (_("%H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9742 input_bfd, input_section, rel->r_offset,
9743 howto->name, sym_name, (int) r);
7619e7c7 9744 ret = FALSE;
252b5132
RH
9745 }
9746 }
c316a17c
AM
9747 copy_reloc:
9748 if (wrel != rel)
9749 *wrel = *rel;
9750 }
9751
9752 if (wrel != rel)
9753 {
9754 Elf_Internal_Shdr *rel_hdr;
9755 size_t deleted = rel - wrel;
9756
9757 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9758 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9759 if (rel_hdr->sh_size == 0)
9760 {
9761 /* It is too late to remove an empty reloc section. Leave
9762 one NONE reloc.
9763 ??? What is wrong with an empty section??? */
9764 rel_hdr->sh_size = rel_hdr->sh_entsize;
9765 deleted -= 1;
9766 wrel++;
9767 }
9768 relend = wrel;
9769 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9770 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9771 input_section->reloc_count -= deleted;
252b5132
RH
9772 }
9773
252b5132
RH
9774#ifdef DEBUG
9775 fprintf (stderr, "\n");
9776#endif
9777
53291d1f
AM
9778 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9779 && input_section->size != input_section->rawsize
9780 && (strcmp (input_section->output_section->name, ".init") == 0
9781 || strcmp (input_section->output_section->name, ".fini") == 0))
9782 {
9783 /* Branch around the trampolines. */
9784 unsigned int insn = B + input_section->size - input_section->rawsize;
9785 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9786 }
9787
5446cbdf 9788 if (htab->params->ppc476_workaround
795bc6b3 9789 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9790 && (!bfd_link_relocatable (info)
795bc6b3
AM
9791 || (input_section->output_section->alignment_power
9792 >= htab->params->pagesize_p2)))
5446cbdf 9793 {
5446cbdf 9794 bfd_vma start_addr, end_addr, addr;
795bc6b3 9795 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9796
5446cbdf 9797 if (relax_info->workaround_size != 0)
40fd06d1
AM
9798 {
9799 bfd_byte *p;
9800 unsigned int n;
9801 bfd_byte fill[4];
9802
9803 bfd_put_32 (input_bfd, BA, fill);
9804 p = contents + input_section->size - relax_info->workaround_size;
9805 n = relax_info->workaround_size >> 2;
9806 while (n--)
9807 {
9808 memcpy (p, fill, 4);
9809 p += 4;
9810 }
9811 }
5446cbdf
AM
9812
9813 /* The idea is: Replace the last instruction on a page with a
9814 branch to a patch area. Put the insn there followed by a
9815 branch back to the next page. Complicated a little by
9816 needing to handle moved conditional branches, and by not
9817 wanting to touch data-in-text. */
9818
9819 start_addr = (input_section->output_section->vma
9820 + input_section->output_offset);
9821 end_addr = (start_addr + input_section->size
9822 - relax_info->workaround_size);
9823 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9824 addr < end_addr;
9825 addr += pagesize)
9826 {
9827 bfd_vma offset = addr - start_addr;
9828 Elf_Internal_Rela *lo, *hi;
9829 bfd_boolean is_data;
9830 bfd_vma patch_off, patch_addr;
9831 unsigned int insn;
9832
9833 /* Do we have a data reloc at this offset? If so, leave
9834 the word alone. */
9835 is_data = FALSE;
9836 lo = relocs;
668e22e5
AM
9837 hi = relend;
9838 rel = NULL;
5446cbdf
AM
9839 while (lo < hi)
9840 {
9841 rel = lo + (hi - lo) / 2;
9842 if (rel->r_offset < offset)
9843 lo = rel + 1;
668e22e5 9844 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9845 hi = rel;
9846 else
9847 {
9848 switch (ELF32_R_TYPE (rel->r_info))
9849 {
9850 case R_PPC_ADDR32:
9851 case R_PPC_UADDR32:
9852 case R_PPC_REL32:
9853 case R_PPC_ADDR30:
9854 is_data = TRUE;
9855 break;
9856 default:
9857 break;
9858 }
9859 break;
9860 }
9861 }
9862 if (is_data)
9863 continue;
9864
b4ab4364
AM
9865 /* Some instructions can be left alone too. Unconditional
9866 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9867 avoid the icache failure.
9868
9869 The problem occurs due to prefetch across a page boundary
9870 where stale instructions can be fetched from the next
9871 page, and the mechanism for flushing these bad
9872 instructions fails under certain circumstances. The
9873 unconditional branches:
9874 1) Branch: b, bl, ba, bla,
9875 2) Branch Conditional: bc, bca, bcl, bcla,
9876 3) Branch Conditional to Link Register: bclr, bclrl,
9877 where (2) and (3) have BO=0x14 making them unconditional,
9878 prevent the bad prefetch because the prefetch itself is
9879 affected by these instructions. This happens even if the
9880 instruction is not executed.
9881
9882 A bctr example:
9883 .
9884 . lis 9,new_page@ha
9885 . addi 9,9,new_page@l
9886 . mtctr 9
9887 . bctr
9888 . nop
9889 . nop
9890 . new_page:
9891 .
9892 The bctr is not predicted taken due to ctr not being
9893 ready, so prefetch continues on past the bctr into the
9894 new page which might have stale instructions. If they
9895 fail to be flushed, then they will be executed after the
9896 bctr executes. Either of the following modifications
9897 prevent the bad prefetch from happening in the first
9898 place:
9899 .
1b786873
L
9900 . lis 9,new_page@ha lis 9,new_page@ha
9901 . addi 9,9,new_page@l addi 9,9,new_page@l
9902 . mtctr 9 mtctr 9
9903 . bctr bctr
b4ab4364 9904 . nop b somewhere_else
1b786873
L
9905 . b somewhere_else nop
9906 . new_page: new_page:
b4ab4364 9907 . */
5446cbdf 9908 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9909 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9910 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9911 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9912 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9913 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9914 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9915 continue;
9916
9917 patch_addr = (start_addr + input_section->size
9918 - relax_info->workaround_size);
9919 patch_addr = (patch_addr + 15) & -16;
9920 patch_off = patch_addr - start_addr;
9921 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9922
9923 if (rel != NULL
9924 && rel->r_offset >= offset
9925 && rel->r_offset < offset + 4)
9926 {
f8b44781
AM
9927 asection *sreloc;
9928
668e22e5
AM
9929 /* If the insn we are patching had a reloc, adjust the
9930 reloc r_offset so that the reloc applies to the moved
9931 location. This matters for -r and --emit-relocs. */
9932 if (rel + 1 != relend)
9933 {
9934 Elf_Internal_Rela tmp = *rel;
9935
9936 /* Keep the relocs sorted by r_offset. */
9937 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9938 relend[-1] = tmp;
9939 }
9940 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9941
9942 /* Adjust REL16 addends too. */
9943 switch (ELF32_R_TYPE (relend[-1].r_info))
9944 {
9945 case R_PPC_REL16:
9946 case R_PPC_REL16_LO:
9947 case R_PPC_REL16_HI:
9948 case R_PPC_REL16_HA:
9949 relend[-1].r_addend += patch_off - offset;
9950 break;
9951 default:
9952 break;
9953 }
9954
9955 /* If we are building a PIE or shared library with
9956 non-PIC objects, perhaps we had a dynamic reloc too?
9957 If so, the dynamic reloc must move with the insn. */
9958 sreloc = elf_section_data (input_section)->sreloc;
9959 if (sreloc != NULL)
9960 {
1d5c94cb 9961 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9962 bfd_vma soffset;
9963
1d5c94cb
AM
9964 slo = (Elf32_External_Rela *) sreloc->contents;
9965 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9966 soffset = (offset + input_section->output_section->vma
9967 + input_section->output_offset);
9968 while (slo < shi)
9969 {
1d5c94cb
AM
9970 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9971 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9972 &outrel);
f8b44781
AM
9973 if (outrel.r_offset < soffset)
9974 slo = srel + 1;
9975 else if (outrel.r_offset > soffset + 3)
9976 shi = srel;
9977 else
9978 {
1d5c94cb 9979 if (srel + 1 != srelend)
f8b44781 9980 {
1d5c94cb
AM
9981 memmove (srel, srel + 1,
9982 (srelend - (srel + 1)) * sizeof (*srel));
9983 srel = srelend - 1;
f8b44781
AM
9984 }
9985 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9986 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9987 (bfd_byte *) srel);
f8b44781
AM
9988 break;
9989 }
9990 }
9991 }
668e22e5
AM
9992 }
9993 else
9994 rel = NULL;
9995
5446cbdf
AM
9996 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9997 && (insn & 2) == 0 /* relative */)
9998 {
9999 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
10000
10001 delta += offset - patch_off;
0e1862bb 10002 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 10003 delta = 0;
0e1862bb 10004 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
10005 {
10006 enum elf_ppc_reloc_type r_type;
10007
10008 r_type = ELF32_R_TYPE (relend[-1].r_info);
10009 if (r_type == R_PPC_REL14_BRTAKEN)
10010 insn |= BRANCH_PREDICT_BIT;
10011 else if (r_type == R_PPC_REL14_BRNTAKEN)
10012 insn &= ~BRANCH_PREDICT_BIT;
10013 else
10014 BFD_ASSERT (r_type == R_PPC_REL14);
10015
10016 if ((r_type == R_PPC_REL14_BRTAKEN
10017 || r_type == R_PPC_REL14_BRNTAKEN)
10018 && delta + 0x8000 < 0x10000
10019 && (bfd_signed_vma) delta < 0)
10020 insn ^= BRANCH_PREDICT_BIT;
10021 }
5446cbdf
AM
10022 if (delta + 0x8000 < 0x10000)
10023 {
10024 bfd_put_32 (input_bfd,
10025 (insn & ~0xfffc) | (delta & 0xfffc),
10026 contents + patch_off);
10027 patch_off += 4;
10028 bfd_put_32 (input_bfd,
10029 B | ((offset + 4 - patch_off) & 0x3fffffc),
10030 contents + patch_off);
10031 patch_off += 4;
10032 }
10033 else
10034 {
668e22e5
AM
10035 if (rel != NULL)
10036 {
10037 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
10038
10039 relend[-1].r_offset += 8;
10040 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
10041 }
5446cbdf
AM
10042 bfd_put_32 (input_bfd,
10043 (insn & ~0xfffc) | 8,
10044 contents + patch_off);
10045 patch_off += 4;
10046 bfd_put_32 (input_bfd,
10047 B | ((offset + 4 - patch_off) & 0x3fffffc),
10048 contents + patch_off);
10049 patch_off += 4;
10050 bfd_put_32 (input_bfd,
10051 B | ((delta - 8) & 0x3fffffc),
10052 contents + patch_off);
10053 patch_off += 4;
10054 }
10055 }
10056 else
10057 {
10058 bfd_put_32 (input_bfd, insn, contents + patch_off);
10059 patch_off += 4;
10060 bfd_put_32 (input_bfd,
10061 B | ((offset + 4 - patch_off) & 0x3fffffc),
10062 contents + patch_off);
10063 patch_off += 4;
10064 }
10065 BFD_ASSERT (patch_off <= input_section->size);
10066 relax_info->workaround_size = input_section->size - patch_off;
10067 }
10068 }
10069
252b5132
RH
10070 return ret;
10071}
252b5132 10072\f
25dbc73a
AM
10073/* Finish up dynamic symbol handling. We set the contents of various
10074 dynamic sections here. */
c5fccbec 10075
b34976b6 10076static bfd_boolean
25dbc73a
AM
10077ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10078 struct bfd_link_info *info,
10079 struct elf_link_hash_entry *h,
10080 Elf_Internal_Sym *sym)
e1a9cb8e 10081{
25dbc73a 10082 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
10083 struct plt_entry *ent;
10084 bfd_boolean doneone;
e1a9cb8e 10085
25dbc73a
AM
10086#ifdef DEBUG
10087 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10088 h->root.root.string);
10089#endif
e1a9cb8e 10090
25dbc73a
AM
10091 htab = ppc_elf_hash_table (info);
10092 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 10093
a6aa5195
AM
10094 doneone = FALSE;
10095 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10096 if (ent->plt.offset != (bfd_vma) -1)
10097 {
10098 if (!doneone)
10099 {
10100 Elf_Internal_Rela rela;
10101 bfd_byte *loc;
10102 bfd_vma reloc_index;
e1a9cb8e 10103
e054468f 10104 if (htab->plt_type == PLT_NEW
25f23106
AM
10105 || !htab->elf.dynamic_sections_created
10106 || h->dynindx == -1)
9d8504b1
PB
10107 reloc_index = ent->plt.offset / 4;
10108 else
10109 {
10110 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10111 / htab->plt_slot_size);
10112 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 10113 && htab->plt_type == PLT_OLD)
9d8504b1
PB
10114 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10115 }
10116
a6aa5195
AM
10117 /* This symbol has an entry in the procedure linkage table.
10118 Set it up. */
e054468f 10119 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
10120 && htab->elf.dynamic_sections_created
10121 && h->dynindx != -1)
a6aa5195 10122 {
9d8504b1
PB
10123 bfd_vma got_offset;
10124 const bfd_vma *plt_entry;
5b914448 10125
9d8504b1
PB
10126 /* The first three entries in .got.plt are reserved. */
10127 got_offset = (reloc_index + 3) * 4;
10128
10129 /* Use the right PLT. */
0e1862bb 10130 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10131 : ppc_elf_vxworks_plt_entry;
10132
10133 /* Fill in the .plt on VxWorks. */
0e1862bb 10134 if (bfd_link_pic (info))
9d8504b1 10135 {
9d8504b1 10136 bfd_put_32 (output_bfd,
e87d4038 10137 plt_entry[0] | PPC_HA (got_offset),
ce558b89 10138 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10139 bfd_put_32 (output_bfd,
e87d4038 10140 plt_entry[1] | PPC_LO (got_offset),
ce558b89 10141 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10142 }
10143 else
10144 {
e87d4038 10145 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
10146
10147 bfd_put_32 (output_bfd,
e87d4038 10148 plt_entry[0] | PPC_HA (got_loc),
ce558b89 10149 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10150 bfd_put_32 (output_bfd,
e87d4038 10151 plt_entry[1] | PPC_LO (got_loc),
ce558b89 10152 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10153 }
10154
10155 bfd_put_32 (output_bfd, plt_entry[2],
ce558b89 10156 htab->elf.splt->contents + ent->plt.offset + 8);
9d8504b1 10157 bfd_put_32 (output_bfd, plt_entry[3],
ce558b89 10158 htab->elf.splt->contents + ent->plt.offset + 12);
9d8504b1
PB
10159
10160 /* This instruction is an immediate load. The value loaded is
10161 the byte offset of the R_PPC_JMP_SLOT relocation from the
10162 start of the .rela.plt section. The value is stored in the
10163 low-order 16 bits of the load instruction. */
10164 /* NOTE: It appears that this is now an index rather than a
10165 prescaled offset. */
5b914448 10166 bfd_put_32 (output_bfd,
9d8504b1 10167 plt_entry[4] | reloc_index,
ce558b89 10168 htab->elf.splt->contents + ent->plt.offset + 16);
9d8504b1
PB
10169 /* This instruction is a PC-relative branch whose target is
10170 the start of the PLT section. The address of this branch
10171 instruction is 20 bytes beyond the start of this PLT entry.
10172 The address is encoded in bits 6-29, inclusive. The value
10173 stored is right-shifted by two bits, permitting a 26-bit
10174 offset. */
5b914448
AM
10175 bfd_put_32 (output_bfd,
10176 (plt_entry[5]
9d8504b1 10177 | (-(ent->plt.offset + 20) & 0x03fffffc)),
ce558b89 10178 htab->elf.splt->contents + ent->plt.offset + 20);
9d8504b1 10179 bfd_put_32 (output_bfd, plt_entry[6],
ce558b89 10180 htab->elf.splt->contents + ent->plt.offset + 24);
9d8504b1 10181 bfd_put_32 (output_bfd, plt_entry[7],
ce558b89 10182 htab->elf.splt->contents + ent->plt.offset + 28);
9d8504b1
PB
10183
10184 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10185 the address immediately after the "bctr" instruction
9d8504b1 10186 in this PLT entry. */
ce558b89
AM
10187 bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
10188 + htab->elf.splt->output_offset
9d8504b1 10189 + ent->plt.offset + 16),
ce558b89 10190 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10191
0e1862bb 10192 if (!bfd_link_pic (info))
9d8504b1
PB
10193 {
10194 /* Fill in a couple of entries in .rela.plt.unloaded. */
10195 loc = htab->srelplt2->contents
10196 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10197 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10198 * sizeof (Elf32_External_Rela));
10199
10200 /* Provide the @ha relocation for the first instruction. */
ce558b89
AM
10201 rela.r_offset = (htab->elf.splt->output_section->vma
10202 + htab->elf.splt->output_offset
9d8504b1 10203 + ent->plt.offset + 2);
636ce3f5 10204 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10205 R_PPC_ADDR16_HA);
10206 rela.r_addend = got_offset;
10207 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10208 loc += sizeof (Elf32_External_Rela);
10209
10210 /* Provide the @l relocation for the second instruction. */
ce558b89
AM
10211 rela.r_offset = (htab->elf.splt->output_section->vma
10212 + htab->elf.splt->output_offset
9d8504b1 10213 + ent->plt.offset + 6);
636ce3f5 10214 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10215 R_PPC_ADDR16_LO);
10216 rela.r_addend = got_offset;
10217 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10218 loc += sizeof (Elf32_External_Rela);
10219
10220 /* Provide a relocation for the GOT entry corresponding to this
10221 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10222 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10223 + htab->elf.sgotplt->output_offset
9d8504b1 10224 + got_offset);
7325306f 10225 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10226 R_PPC_ADDR32);
10227 rela.r_addend = ent->plt.offset + 16;
10228 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10229 }
10230
10231 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10232 In particular, the offset for the relocation is not the
10233 address of the PLT entry for this function, as specified
10234 by the ABI. Instead, the offset is set to the address of
10235 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10236 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10237 + htab->elf.sgotplt->output_offset
9d8504b1
PB
10238 + got_offset);
10239
a6aa5195
AM
10240 }
10241 else
10242 {
ce558b89 10243 asection *splt = htab->elf.splt;
25f23106
AM
10244 if (!htab->elf.dynamic_sections_created
10245 || h->dynindx == -1)
ce558b89 10246 splt = htab->elf.iplt;
e054468f
AM
10247
10248 rela.r_offset = (splt->output_section->vma
10249 + splt->output_offset
9d8504b1 10250 + ent->plt.offset);
e054468f 10251 if (htab->plt_type == PLT_OLD
25f23106
AM
10252 || !htab->elf.dynamic_sections_created
10253 || h->dynindx == -1)
9d8504b1
PB
10254 {
10255 /* We don't need to fill in the .plt. The ppc dynamic
10256 linker will fill it in. */
10257 }
10258 else
10259 {
10260 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10261 + htab->glink->output_section->vma
10262 + htab->glink->output_offset);
10263 bfd_put_32 (output_bfd, val,
e054468f 10264 splt->contents + ent->plt.offset);
9d8504b1 10265 }
a6aa5195 10266 }
e1a9cb8e 10267
a6aa5195 10268 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10269 rela.r_addend = 0;
e054468f
AM
10270 if (!htab->elf.dynamic_sections_created
10271 || h->dynindx == -1)
10272 {
10273 BFD_ASSERT (h->type == STT_GNU_IFUNC
10274 && h->def_regular
10275 && (h->root.type == bfd_link_hash_defined
10276 || h->root.type == bfd_link_hash_defweak));
10277 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10278 rela.r_addend = SYM_VAL (h);
10279 }
10280 else
10281 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10282
25f23106
AM
10283 if (!htab->elf.dynamic_sections_created
10284 || h->dynindx == -1)
82e66161
AM
10285 {
10286 loc = (htab->elf.irelplt->contents
10287 + (htab->elf.irelplt->reloc_count++
10288 * sizeof (Elf32_External_Rela)));
10289 htab->local_ifunc_resolver = 1;
10290 }
e054468f 10291 else
82e66161
AM
10292 {
10293 loc = (htab->elf.srelplt->contents
10294 + reloc_index * sizeof (Elf32_External_Rela));
10295 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10296 htab->maybe_local_ifunc_resolver = 1;
10297 }
a6aa5195 10298 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10299
a6aa5195
AM
10300 if (!h->def_regular)
10301 {
0eb4a168
AM
10302 /* Mark the symbol as undefined, rather than as
10303 defined in the .plt section. Leave the value if
10304 there were any relocations where pointer equality
10305 matters (this is a clue for the dynamic linker, to
10306 make function pointer comparisons work between an
10307 application and shared library), otherwise set it
10308 to zero. */
a6aa5195 10309 sym->st_shndx = SHN_UNDEF;
0eb4a168 10310 if (!h->pointer_equality_needed)
a6aa5195 10311 sym->st_value = 0;
0eb4a168
AM
10312 else if (!h->ref_regular_nonweak)
10313 {
625af618
AM
10314 /* This breaks function pointer comparisons, but
10315 that is better than breaking tests for a NULL
0eb4a168 10316 function pointer. */
0eb4a168
AM
10317 sym->st_value = 0;
10318 }
a6aa5195 10319 }
de972ffa 10320 else if (h->type == STT_GNU_IFUNC
0e1862bb 10321 && !bfd_link_pic (info))
de972ffa
AM
10322 {
10323 /* Set the value of ifunc symbols in a non-pie
10324 executable to the glink entry. This is to avoid
10325 text relocations. We can't do this for ifunc in
10326 allocate_dynrelocs, as we do for normal dynamic
10327 function symbols with plt entries, because we need
10328 to keep the original value around for the ifunc
10329 relocation. */
10330 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10331 (output_bfd, htab->glink->output_section));
5b914448
AM
10332 sym->st_value = (ent->glink_offset
10333 + htab->glink->output_offset
de972ffa
AM
10334 + htab->glink->output_section->vma);
10335 }
a6aa5195
AM
10336 doneone = TRUE;
10337 }
e1a9cb8e 10338
e054468f 10339 if (htab->plt_type == PLT_NEW
25f23106
AM
10340 || !htab->elf.dynamic_sections_created
10341 || h->dynindx == -1)
a6aa5195 10342 {
a7f2871e 10343 unsigned char *p;
ce558b89 10344 asection *splt = htab->elf.splt;
25f23106
AM
10345 if (!htab->elf.dynamic_sections_created
10346 || h->dynindx == -1)
ce558b89 10347 splt = htab->elf.iplt;
e1a9cb8e 10348
a7f2871e
AM
10349 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10350
5446cbdf 10351 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10352 {
10353 bfd_put_32 (output_bfd, LWZ_11_3, p);
10354 p += 4;
10355 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10356 p += 4;
10357 bfd_put_32 (output_bfd, MR_0_3, p);
10358 p += 4;
10359 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10360 p += 4;
10361 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10362 p += 4;
10363 bfd_put_32 (output_bfd, BEQLR, p);
10364 p += 4;
10365 bfd_put_32 (output_bfd, MR_3_0, p);
10366 p += 4;
10367 bfd_put_32 (output_bfd, NOP, p);
10368 p += 4;
10369 }
10370
10371 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10372
0e1862bb 10373 if (!bfd_link_pic (info))
e054468f
AM
10374 /* We only need one non-PIC glink stub. */
10375 break;
a6aa5195
AM
10376 }
10377 else
10378 break;
10379 }
e1a9cb8e 10380
25dbc73a
AM
10381 if (h->needs_copy)
10382 {
10383 asection *s;
10384 Elf_Internal_Rela rela;
10385 bfd_byte *loc;
e1a9cb8e 10386
25dbc73a 10387 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10388
25dbc73a
AM
10389#ifdef DEBUG
10390 fprintf (stderr, ", copy");
10391#endif
e1a9cb8e 10392
25dbc73a 10393 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10394
4dc4a9a5 10395 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10396 s = htab->relsbss;
afbf7e8e 10397 else if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f 10398 s = htab->elf.sreldynrelro;
25dbc73a 10399 else
9d19e4fd 10400 s = htab->elf.srelbss;
25dbc73a 10401 BFD_ASSERT (s != NULL);
e1a9cb8e 10402
e87d4038 10403 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10404 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10405 rela.r_addend = 0;
10406 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10407 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10408 }
e1a9cb8e 10409
25dbc73a
AM
10410#ifdef DEBUG
10411 fprintf (stderr, "\n");
10412#endif
e1a9cb8e 10413
25dbc73a
AM
10414 return TRUE;
10415}
10416\f
10417static enum elf_reloc_type_class
7e612e98
AM
10418ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10419 const asection *rel_sec,
10420 const Elf_Internal_Rela *rela)
e1a9cb8e 10421{
7e612e98
AM
10422 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10423
ce558b89 10424 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
10425 return reloc_class_ifunc;
10426
25dbc73a
AM
10427 switch (ELF32_R_TYPE (rela->r_info))
10428 {
10429 case R_PPC_RELATIVE:
10430 return reloc_class_relative;
25dbc73a
AM
10431 case R_PPC_JMP_SLOT:
10432 return reloc_class_plt;
10433 case R_PPC_COPY:
10434 return reloc_class_copy;
10435 default:
10436 return reloc_class_normal;
10437 }
e1a9cb8e 10438}
25dbc73a
AM
10439\f
10440/* Finish up the dynamic sections. */
e1a9cb8e 10441
25dbc73a
AM
10442static bfd_boolean
10443ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10444 struct bfd_link_info *info)
e1a9cb8e 10445{
25dbc73a
AM
10446 asection *sdyn;
10447 struct ppc_elf_link_hash_table *htab;
1fe44d79 10448 bfd_vma got;
e87d4038
AM
10449 bfd *dynobj;
10450 bfd_boolean ret = TRUE;
e1a9cb8e 10451
25dbc73a
AM
10452#ifdef DEBUG
10453 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10454#endif
6b0817e5 10455
25dbc73a 10456 htab = ppc_elf_hash_table (info);
ce558b89 10457 dynobj = htab->elf.dynobj;
3d4d4302 10458 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
e1a9cb8e 10459
1fe44d79
AM
10460 got = 0;
10461 if (htab->elf.hgot != NULL)
e87d4038 10462 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10463
25dbc73a 10464 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10465 {
25dbc73a 10466 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10467
ce558b89 10468 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 10469
25dbc73a
AM
10470 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10471 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10472 for (; dyncon < dynconend; dyncon++)
10473 {
10474 Elf_Internal_Dyn dyn;
10475 asection *s;
e1a9cb8e 10476
9d8504b1 10477 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10478
25dbc73a
AM
10479 switch (dyn.d_tag)
10480 {
10481 case DT_PLTGOT:
9d8504b1 10482 if (htab->is_vxworks)
ce558b89 10483 s = htab->elf.sgotplt;
9d8504b1 10484 else
ce558b89 10485 s = htab->elf.splt;
25dbc73a
AM
10486 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10487 break;
86bbe32f 10488
25dbc73a 10489 case DT_PLTRELSZ:
ce558b89 10490 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 10491 break;
e1a9cb8e 10492
25dbc73a 10493 case DT_JMPREL:
ce558b89 10494 s = htab->elf.srelplt;
25dbc73a
AM
10495 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10496 break;
2f89ff8d 10497
1fe44d79
AM
10498 case DT_PPC_GOT:
10499 dyn.d_un.d_ptr = got;
d7128ce4
AM
10500 break;
10501
82e66161
AM
10502 case DT_TEXTREL:
10503 if (htab->local_ifunc_resolver)
10504 info->callbacks->einfo
10505 (_("%X%P: text relocations and GNU indirect "
10506 "functions will result in a segfault at runtime\n"));
10507 else if (htab->maybe_local_ifunc_resolver)
10508 info->callbacks->einfo
10509 (_("%P: warning: text relocations and GNU indirect "
10510 "functions may result in a segfault at runtime\n"));
10511 continue;
10512
25dbc73a 10513 default:
7a2b07ff
NS
10514 if (htab->is_vxworks
10515 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10516 break;
25dbc73a
AM
10517 continue;
10518 }
4c45e5c9 10519
25dbc73a
AM
10520 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10521 }
10522 }
4c45e5c9 10523
6528b6eb
AM
10524 if (htab->elf.sgot != NULL
10525 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
25dbc73a 10526 {
ce558b89
AM
10527 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10528 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 10529 {
e79f5955 10530 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10531
e87d4038
AM
10532 p += htab->elf.hgot->root.u.def.value;
10533 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10534 {
10535 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10536 so that a function can easily find the address of
10537 _GLOBAL_OFFSET_TABLE_. */
10538 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10539 < htab->elf.hgot->root.u.def.section->size);
10540 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10541 }
3b36f7e6 10542
e87d4038 10543 if (sdyn != NULL)
e79f5955
AM
10544 {
10545 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10546 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10547 < htab->elf.hgot->root.u.def.section->size);
10548 bfd_put_32 (output_bfd, val, p);
10549 }
e87d4038
AM
10550 }
10551 else
10552 {
695344c0 10553 /* xgettext:c-format */
8de848d8 10554 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85 10555 htab->elf.hgot->root.root.string,
ce558b89
AM
10556 (htab->elf.sgotplt != NULL
10557 ? htab->elf.sgotplt->name
10558 : htab->elf.sgot->name));
e87d4038
AM
10559 bfd_set_error (bfd_error_bad_value);
10560 ret = FALSE;
10561 }
25dbc73a 10562
ce558b89 10563 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
10564 }
10565
9d8504b1 10566 /* Fill in the first entry in the VxWorks procedure linkage table. */
6528b6eb
AM
10567 if (htab->is_vxworks
10568 && htab->elf.splt != NULL
10569 && htab->elf.splt->size != 0
10570 && htab->elf.splt->output_section != bfd_abs_section_ptr)
9d8504b1 10571 {
6528b6eb 10572 asection *splt = htab->elf.splt;
9d8504b1 10573 /* Use the right PLT. */
0e1862bb 10574 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10575 ? ppc_elf_vxworks_pic_plt0_entry
10576 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10577
0e1862bb 10578 if (!bfd_link_pic (info))
9d8504b1 10579 {
e87d4038 10580 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10581
e87d4038 10582 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10583 splt->contents + 0);
e87d4038 10584 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10585 splt->contents + 4);
10586 }
10587 else
10588 {
10589 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10590 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10591 }
10592 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10593 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10594 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10595 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10596 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10597 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10598
0e1862bb 10599 if (! bfd_link_pic (info))
9d8504b1
PB
10600 {
10601 Elf_Internal_Rela rela;
10602 bfd_byte *loc;
10603
10604 loc = htab->srelplt2->contents;
10605
10606 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
10607 rela.r_offset = (htab->elf.splt->output_section->vma
10608 + htab->elf.splt->output_offset
9d8504b1 10609 + 2);
636ce3f5 10610 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10611 rela.r_addend = 0;
10612 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10613 loc += sizeof (Elf32_External_Rela);
5b914448 10614
9d8504b1 10615 /* Output the @l relocation for the second instruction. */
ce558b89
AM
10616 rela.r_offset = (htab->elf.splt->output_section->vma
10617 + htab->elf.splt->output_offset
9d8504b1 10618 + 6);
636ce3f5 10619 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10620 rela.r_addend = 0;
10621 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10622 loc += sizeof (Elf32_External_Rela);
10623
10624 /* Fix up the remaining relocations. They may have the wrong
10625 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10626 in which symbols were output. */
10627 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10628 {
10629 Elf_Internal_Rela rel;
10630
10631 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10632 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10633 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10634 loc += sizeof (Elf32_External_Rela);
10635
10636 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10637 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10638 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10639 loc += sizeof (Elf32_External_Rela);
10640
10641 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10642 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10643 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10644 loc += sizeof (Elf32_External_Rela);
10645 }
10646 }
10647 }
10648
e054468f
AM
10649 if (htab->glink != NULL
10650 && htab->glink->contents != NULL
10651 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10652 {
10653 unsigned char *p;
10654 unsigned char *endp;
a6aa5195 10655 bfd_vma res0;
d7128ce4 10656 unsigned int i;
a6aa5195
AM
10657
10658 /*
10659 * PIC glink code is the following:
10660 *
10661 * # ith PLT code stub.
10662 * addis 11,30,(plt+(i-1)*4-got)@ha
10663 * lwz 11,(plt+(i-1)*4-got)@l(11)
10664 * mtctr 11
10665 * bctr
10666 *
10667 * # A table of branches, one for each plt entry.
176a0d42 10668 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10669 * # addresses, so (r11 - res_0) gives the plt index * 4.
10670 * res_0: b PLTresolve
10671 * res_1: b PLTresolve
10672 * .
10673 * # Some number of entries towards the end can be nops
10674 * res_n_m3: nop
10675 * res_n_m2: nop
10676 * res_n_m1:
10677 *
10678 * PLTresolve:
10679 * addis 11,11,(1f-res_0)@ha
10680 * mflr 0
10681 * bcl 20,31,1f
10682 * 1: addi 11,11,(1b-res_0)@l
10683 * mflr 12
10684 * mtlr 0
10685 * sub 11,11,12 # r11 = index * 4
10686 * addis 12,12,(got+4-1b)@ha
10687 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10688 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10689 * mtctr 0
10690 * add 0,11,11
10691 * add 11,0,11 # r11 = index * 12 = reloc offset.
10692 * bctr
10693 */
10694 static const unsigned int pic_plt_resolve[] =
10695 {
10696 ADDIS_11_11,
10697 MFLR_0,
10698 BCL_20_31,
10699 ADDI_11_11,
10700 MFLR_12,
10701 MTLR_0,
10702 SUB_11_11_12,
10703 ADDIS_12_12,
10704 LWZ_0_12,
10705 LWZ_12_12,
10706 MTCTR_0,
10707 ADD_0_11_11,
10708 ADD_11_0_11,
10709 BCTR,
10710 NOP,
10711 NOP
10712 };
10713
176a0d42
AM
10714 /*
10715 * Non-PIC glink code is a little simpler.
10716 *
10717 * # ith PLT code stub.
10718 * lis 11,(plt+(i-1)*4)@ha
10719 * lwz 11,(plt+(i-1)*4)@l(11)
10720 * mtctr 11
10721 * bctr
10722 *
10723 * The branch table is the same, then comes
10724 *
10725 * PLTresolve:
10726 * lis 12,(got+4)@ha
10727 * addis 11,11,(-res_0)@ha
10728 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10729 * addi 11,11,(-res_0)@l # r11 = index * 4
10730 * mtctr 0
10731 * add 0,11,11
10732 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10733 * add 11,0,11 # r11 = index * 12 = reloc offset.
10734 * bctr
10735 */
d7128ce4
AM
10736 static const unsigned int plt_resolve[] =
10737 {
a6aa5195
AM
10738 LIS_12,
10739 ADDIS_11_11,
10740 LWZ_0_12,
10741 ADDI_11_11,
d7128ce4 10742 MTCTR_0,
7e8aeb9a 10743 ADD_0_11_11,
a6aa5195 10744 LWZ_12_12,
7e8aeb9a 10745 ADD_11_0_11,
d7128ce4
AM
10746 BCTR,
10747 NOP,
10748 NOP,
a6aa5195
AM
10749 NOP,
10750 NOP,
10751 NOP,
10752 NOP,
d7128ce4
AM
10753 NOP
10754 };
10755
a6aa5195
AM
10756 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10757 abort ();
10758 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10759 abort ();
10760
a6aa5195 10761 /* Build the branch table, one for each plt entry (less one),
86b9da88 10762 and perhaps some padding. */
a6aa5195
AM
10763 p = htab->glink->contents;
10764 p += htab->glink_pltresolve;
86b9da88
AM
10765 endp = htab->glink->contents;
10766 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10767 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10768 {
10769 bfd_put_32 (output_bfd, B + endp - p, p);
10770 p += 4;
10771 }
10772 while (p < endp)
10773 {
10774 bfd_put_32 (output_bfd, NOP, p);
10775 p += 4;
10776 }
10777
7e8aeb9a 10778 res0 = (htab->glink_pltresolve
86b9da88
AM
10779 + htab->glink->output_section->vma
10780 + htab->glink->output_offset);
10781
da3a2088
AM
10782 if (htab->params->ppc476_workaround)
10783 {
10784 /* Ensure that a call stub at the end of a page doesn't
10785 result in prefetch over the end of the page into the
10786 glink branch table. */
10787 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10788 bfd_vma page_addr;
10789 bfd_vma glink_start = (htab->glink->output_section->vma
10790 + htab->glink->output_offset);
10791
10792 for (page_addr = res0 & -pagesize;
10793 page_addr > glink_start;
10794 page_addr -= pagesize)
10795 {
10796 /* We have a plt call stub that may need fixing. */
10797 bfd_byte *loc;
10798 unsigned int insn;
10799
10800 loc = htab->glink->contents + page_addr - 4 - glink_start;
10801 insn = bfd_get_32 (output_bfd, loc);
10802 if (insn == BCTR)
10803 {
10804 /* By alignment, we know that there must be at least
10805 one other call stub before this one. */
10806 insn = bfd_get_32 (output_bfd, loc - 16);
10807 if (insn == BCTR)
10808 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10809 else
10810 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10811 }
10812 }
10813 }
10814
86b9da88 10815 /* Last comes the PLTresolve stub. */
0e1862bb 10816 if (bfd_link_pic (info))
7e8aeb9a 10817 {
a6aa5195 10818 bfd_vma bcl;
d7128ce4 10819
a6aa5195 10820 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10821 {
da3a2088
AM
10822 unsigned int insn = pic_plt_resolve[i];
10823
10824 if (htab->params->ppc476_workaround && insn == NOP)
10825 insn = BA + 0;
10826 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10827 p += 4;
10828 }
a6aa5195
AM
10829 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10830
10831 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10832 + htab->glink->output_section->vma
10833 + htab->glink->output_offset);
10834
10835 bfd_put_32 (output_bfd,
10836 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10837 bfd_put_32 (output_bfd,
10838 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10839 bfd_put_32 (output_bfd,
10840 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10841 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10842 {
10843 bfd_put_32 (output_bfd,
10844 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10845 bfd_put_32 (output_bfd,
10846 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10847 }
10848 else
10849 {
10850 bfd_put_32 (output_bfd,
10851 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10852 bfd_put_32 (output_bfd,
10853 LWZ_12_12 + 4, p + 9*4);
10854 }
7e8aeb9a
AM
10855 }
10856 else
d7128ce4 10857 {
a6aa5195 10858 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10859 {
da3a2088
AM
10860 unsigned int insn = plt_resolve[i];
10861
10862 if (htab->params->ppc476_workaround && insn == NOP)
10863 insn = BA + 0;
10864 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10865 p += 4;
10866 }
a6aa5195
AM
10867 p -= 4 * ARRAY_SIZE (plt_resolve);
10868
10869 bfd_put_32 (output_bfd,
10870 LIS_12 + PPC_HA (got + 4), p + 0*4);
10871 bfd_put_32 (output_bfd,
10872 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10873 bfd_put_32 (output_bfd,
10874 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10875 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10876 {
10877 bfd_put_32 (output_bfd,
10878 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10879 bfd_put_32 (output_bfd,
10880 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10881 }
10882 else
10883 {
10884 bfd_put_32 (output_bfd,
10885 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10886 bfd_put_32 (output_bfd,
10887 LWZ_12_12 + 4, p + 6*4);
10888 }
d7128ce4 10889 }
d7128ce4
AM
10890 }
10891
6177242a
AM
10892 if (htab->glink_eh_frame != NULL
10893 && htab->glink_eh_frame->contents != NULL)
10894 {
10895 unsigned char *p = htab->glink_eh_frame->contents;
10896 bfd_vma val;
10897
6177242a
AM
10898 p += sizeof (glink_eh_frame_cie);
10899 /* FDE length. */
6177242a
AM
10900 p += 4;
10901 /* CIE pointer. */
6177242a
AM
10902 p += 4;
10903 /* Offset to .glink. */
10904 val = (htab->glink->output_section->vma
10905 + htab->glink->output_offset);
10906 val -= (htab->glink_eh_frame->output_section->vma
10907 + htab->glink_eh_frame->output_offset);
10908 val -= p - htab->glink_eh_frame->contents;
10909 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10910
dbaa2011 10911 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10912 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10913 htab->glink_eh_frame,
10914 htab->glink_eh_frame->contents))
10915 return FALSE;
10916 }
10917
e87d4038 10918 return ret;
25dbc73a 10919}
e1a9cb8e 10920\f
6d00b590 10921#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10922#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10923#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10924#define TARGET_BIG_NAME "elf32-powerpc"
10925#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10926#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10927#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10928#ifdef __QNXTARGET__
10929#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10930#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10931#else
252b5132 10932#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10933#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10934#endif
b1342370 10935#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10936#define elf_info_to_howto ppc_elf_info_to_howto
10937
10938#ifdef EM_CYGNUS_POWERPC
10939#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10940#endif
10941
10942#ifdef EM_PPC_OLD
10943#define ELF_MACHINE_ALT2 EM_PPC_OLD
10944#endif
10945
10946#define elf_backend_plt_not_loaded 1
5474d94f 10947#define elf_backend_want_dynrelro 1
252b5132 10948#define elf_backend_can_gc_sections 1
51b64d56 10949#define elf_backend_can_refcount 1
b491616a 10950#define elf_backend_rela_normal 1
53291d1f 10951#define elf_backend_caches_rawsize 1
252b5132 10952
43c40ab2 10953#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10954#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10955#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10956#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10957#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10958#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10959#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10960#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10961
feee612b 10962#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
10963#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10964#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10965#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10966#define elf_backend_relocate_section ppc_elf_relocate_section
10967#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10968#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 10969#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10970#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10971#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10972#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10973#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10974#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10975#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10976#define elf_backend_fake_sections ppc_elf_fake_sections
10977#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
954b63d4 10978#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10979#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10980#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10981#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10982#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10983#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10984#define elf_backend_final_write_processing ppc_elf_final_write_processing
10985#define elf_backend_write_section ppc_elf_write_section
551b43fd 10986#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10987#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10988#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10989#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10990#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10991
10992#include "elf32-target.h"
9d8504b1 10993
7b8e7dad
AM
10994/* FreeBSD Target */
10995
10996#undef TARGET_LITTLE_SYM
10997#undef TARGET_LITTLE_NAME
10998
10999#undef TARGET_BIG_SYM
6d00b590 11000#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
11001#undef TARGET_BIG_NAME
11002#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
11003
11004#undef ELF_OSABI
11005#define ELF_OSABI ELFOSABI_FREEBSD
11006
11007#undef elf32_bed
11008#define elf32_bed elf32_powerpc_fbsd_bed
11009
11010#include "elf32-target.h"
11011
9d8504b1
PB
11012/* VxWorks Target */
11013
11014#undef TARGET_LITTLE_SYM
11015#undef TARGET_LITTLE_NAME
11016
11017#undef TARGET_BIG_SYM
6d00b590 11018#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
11019#undef TARGET_BIG_NAME
11020#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
11021
7b8e7dad
AM
11022#undef ELF_OSABI
11023
d5e3d971
PB
11024/* VxWorks uses the elf default section flags for .plt. */
11025static const struct bfd_elf_special_section *
4aef7643 11026ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
9d8504b1 11027{
d5e3d971
PB
11028 if (sec->name == NULL)
11029 return NULL;
11030
11031 if (strcmp (sec->name, ".plt") == 0)
11032 return _bfd_elf_get_sec_type_attr (abfd, sec);
11033
11034 return ppc_elf_get_sec_type_attr (abfd, sec);
11035}
9d8504b1
PB
11036
11037/* Like ppc_elf_link_hash_table_create, but overrides
11038 appropriately for VxWorks. */
11039static struct bfd_link_hash_table *
11040ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
11041{
11042 struct bfd_link_hash_table *ret;
11043
11044 ret = ppc_elf_link_hash_table_create (abfd);
11045 if (ret)
11046 {
11047 struct ppc_elf_link_hash_table *htab
954b63d4 11048 = (struct ppc_elf_link_hash_table *)ret;
9d8504b1 11049 htab->is_vxworks = 1;
4a3dc543 11050 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
11051 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
11052 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
11053 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
11054 }
11055 return ret;
11056}
11057
11058/* Tweak magic VxWorks symbols as they are loaded. */
11059static bfd_boolean
11060ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
11061 struct bfd_link_info *info,
11062 Elf_Internal_Sym *sym,
4aef7643
AM
11063 const char **namep,
11064 flagword *flagsp,
9d8504b1
PB
11065 asection **secp,
11066 bfd_vma *valp)
11067{
4aef7643
AM
11068 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
11069 valp))
9d8504b1
PB
11070 return FALSE;
11071
4aef7643 11072 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
9d8504b1
PB
11073}
11074
9d8504b1
PB
11075static void
11076ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11077{
4aef7643
AM
11078 ppc_elf_final_write_processing (abfd, linker);
11079 elf_vxworks_final_write_processing (abfd, linker);
9d8504b1
PB
11080}
11081
11082/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11083 define it. */
11084#undef elf_backend_want_plt_sym
11085#define elf_backend_want_plt_sym 1
11086#undef elf_backend_want_got_plt
11087#define elf_backend_want_got_plt 1
11088#undef elf_backend_got_symbol_offset
11089#define elf_backend_got_symbol_offset 0
11090#undef elf_backend_plt_not_loaded
11091#define elf_backend_plt_not_loaded 0
11092#undef elf_backend_plt_readonly
11093#define elf_backend_plt_readonly 1
11094#undef elf_backend_got_header_size
11095#define elf_backend_got_header_size 12
64f52338
AM
11096#undef elf_backend_dtrel_excludes_plt
11097#define elf_backend_dtrel_excludes_plt 1
9d8504b1 11098
468392fb
AM
11099#undef bfd_elf32_get_synthetic_symtab
11100
9d8504b1
PB
11101#undef bfd_elf32_bfd_link_hash_table_create
11102#define bfd_elf32_bfd_link_hash_table_create \
11103 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
11104#undef elf_backend_add_symbol_hook
11105#define elf_backend_add_symbol_hook \
11106 ppc_elf_vxworks_add_symbol_hook
11107#undef elf_backend_link_output_symbol_hook
11108#define elf_backend_link_output_symbol_hook \
9c72ff84 11109 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
11110#undef elf_backend_final_write_processing
11111#define elf_backend_final_write_processing \
11112 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
11113#undef elf_backend_get_sec_type_attr
11114#define elf_backend_get_sec_type_attr \
11115 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
11116#undef elf_backend_emit_relocs
11117#define elf_backend_emit_relocs \
11118 elf_vxworks_emit_relocs
11119
11120#undef elf32_bed
11121#define elf32_bed ppc_elf_vxworks_bed
e054468f 11122#undef elf_backend_post_process_headers
9d8504b1
PB
11123
11124#include "elf32-target.h"