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252b5132 1/* PowerPC-specific support for 32-bit ELF
219d1afa 2 Copyright (C) 1994-2018 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
9e390558 71#define GLINK_ENTRY_SIZE(htab, h) \
407aa07c 72 ((4*4 \
9e390558
AM
73 + (h != NULL \
74 && h == htab->tls_get_addr \
75 && !htab->params->no_tls_get_addr_opt ? 8*4 : 0) \
76 + (1u << htab->params->plt_stub_align) - 1) \
77 & -(1u << htab->params->plt_stub_align))
d7128ce4 78
9d8504b1
PB
79/* VxWorks uses its own plt layout, filled in by the static linker. */
80
81/* The standard VxWorks PLT entry. */
82#define VXWORKS_PLT_ENTRY_SIZE 32
83static const bfd_vma ppc_elf_vxworks_plt_entry
84 [VXWORKS_PLT_ENTRY_SIZE / 4] =
85 {
07d6d2b8
AM
86 0x3d800000, /* lis r12,0 */
87 0x818c0000, /* lwz r12,0(r12) */
88 0x7d8903a6, /* mtctr r12 */
89 0x4e800420, /* bctr */
90 0x39600000, /* li r11,0 */
91 0x48000000, /* b 14 <.PLT0resolve+0x4> */
92 0x60000000, /* nop */
93 0x60000000, /* nop */
9d8504b1
PB
94 };
95static const bfd_vma ppc_elf_vxworks_pic_plt_entry
96 [VXWORKS_PLT_ENTRY_SIZE / 4] =
97 {
98 0x3d9e0000, /* addis r12,r30,0 */
99 0x818c0000, /* lwz r12,0(r12) */
100 0x7d8903a6, /* mtctr r12 */
101 0x4e800420, /* bctr */
102 0x39600000, /* li r11,0 */
103 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
104 0x60000000, /* nop */
105 0x60000000, /* nop */
106 };
107
108/* The initial VxWorks PLT entry. */
109#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
110static const bfd_vma ppc_elf_vxworks_plt0_entry
111 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
112 {
07d6d2b8
AM
113 0x3d800000, /* lis r12,0 */
114 0x398c0000, /* addi r12,r12,0 */
115 0x800c0008, /* lwz r0,8(r12) */
116 0x7c0903a6, /* mtctr r0 */
117 0x818c0004, /* lwz r12,4(r12) */
118 0x4e800420, /* bctr */
119 0x60000000, /* nop */
120 0x60000000, /* nop */
9d8504b1
PB
121 };
122static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
123 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
124 {
125 0x819e0008, /* lwz r12,8(r30) */
07d6d2b8 126 0x7d8903a6, /* mtctr r12 */
9d8504b1 127 0x819e0004, /* lwz r12,4(r30) */
07d6d2b8
AM
128 0x4e800420, /* bctr */
129 0x60000000, /* nop */
130 0x60000000, /* nop */
131 0x60000000, /* nop */
132 0x60000000, /* nop */
9d8504b1
PB
133 };
134
135/* For executables, we have some additional relocations in
136 .rela.plt.unloaded, for the kernel loader. */
137
138/* The number of non-JMP_SLOT relocations per PLT0 slot. */
139#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
140/* The number of relocations in the PLTResolve slot. */
141#define VXWORKS_PLTRESOLVE_RELOCS 2
de194d85 142/* The number of relocations in the PLTResolve slot when creating
9d8504b1
PB
143 a shared library. */
144#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
145
d7128ce4 146/* Some instructions. */
d7128ce4 147#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
148#define ADDIS_11_30 0x3d7e0000
149#define ADDIS_12_12 0x3d8c0000
d7128ce4 150#define ADDI_11_11 0x396b0000
d7128ce4 151#define ADD_0_11_11 0x7c0b5a14
a7f2871e 152#define ADD_3_12_2 0x7c6c1214
d7128ce4 153#define ADD_11_0_11 0x7d605a14
a6aa5195 154#define B 0x48000000
da3a2088 155#define BA 0x48000002
a6aa5195 156#define BCL_20_31 0x429f0005
d7128ce4 157#define BCTR 0x4e800420
a7f2871e
AM
158#define BEQLR 0x4d820020
159#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
160#define LIS_11 0x3d600000
161#define LIS_12 0x3d800000
a6aa5195
AM
162#define LWZU_0_12 0x840c0000
163#define LWZ_0_12 0x800c0000
a7f2871e 164#define LWZ_11_3 0x81630000
a6aa5195
AM
165#define LWZ_11_11 0x816b0000
166#define LWZ_11_30 0x817e0000
a7f2871e 167#define LWZ_12_3 0x81830000
a6aa5195 168#define LWZ_12_12 0x818c0000
a7f2871e
AM
169#define MR_0_3 0x7c601b78
170#define MR_3_0 0x7c030378
a6aa5195
AM
171#define MFLR_0 0x7c0802a6
172#define MFLR_12 0x7d8802a6
173#define MTCTR_0 0x7c0903a6
174#define MTCTR_11 0x7d6903a6
175#define MTLR_0 0x7c0803a6
176#define NOP 0x60000000
177#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
178
179/* Offset of tp and dtp pointers from start of TLS block. */
180#define TP_OFFSET 0x7000
181#define DTP_OFFSET 0x8000
e87d4038
AM
182
183/* The value of a defined global symbol. */
184#define SYM_VAL(SYM) \
185 ((SYM)->root.u.def.section->output_section->vma \
186 + (SYM)->root.u.def.section->output_offset \
187 + (SYM)->root.u.def.value)
7fce784e 188\f
e47cd125 189static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 190
8da6118f 191static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
192 /* This reloc does nothing. */
193 HOWTO (R_PPC_NONE, /* type */
194 0, /* rightshift */
6346d5ca
AM
195 3, /* size (0 = byte, 1 = short, 2 = long) */
196 0, /* bitsize */
b34976b6 197 FALSE, /* pc_relative */
252b5132 198 0, /* bitpos */
86c95733 199 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
200 bfd_elf_generic_reloc, /* special_function */
201 "R_PPC_NONE", /* name */
b34976b6 202 FALSE, /* partial_inplace */
252b5132
RH
203 0, /* src_mask */
204 0, /* dst_mask */
b34976b6 205 FALSE), /* pcrel_offset */
252b5132
RH
206
207 /* A standard 32 bit relocation. */
208 HOWTO (R_PPC_ADDR32, /* type */
209 0, /* rightshift */
210 2, /* size (0 = byte, 1 = short, 2 = long) */
211 32, /* bitsize */
b34976b6 212 FALSE, /* pc_relative */
252b5132 213 0, /* bitpos */
86c95733 214 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
215 bfd_elf_generic_reloc, /* special_function */
216 "R_PPC_ADDR32", /* name */
b34976b6 217 FALSE, /* partial_inplace */
252b5132
RH
218 0, /* src_mask */
219 0xffffffff, /* dst_mask */
b34976b6 220 FALSE), /* pcrel_offset */
252b5132
RH
221
222 /* An absolute 26 bit branch; the lower two bits must be zero.
223 FIXME: we don't check that, we just clear them. */
224 HOWTO (R_PPC_ADDR24, /* type */
225 0, /* rightshift */
226 2, /* size (0 = byte, 1 = short, 2 = long) */
227 26, /* bitsize */
b34976b6 228 FALSE, /* pc_relative */
252b5132 229 0, /* bitpos */
86c95733 230 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
231 bfd_elf_generic_reloc, /* special_function */
232 "R_PPC_ADDR24", /* name */
b34976b6 233 FALSE, /* partial_inplace */
252b5132
RH
234 0, /* src_mask */
235 0x3fffffc, /* dst_mask */
b34976b6 236 FALSE), /* pcrel_offset */
252b5132
RH
237
238 /* A standard 16 bit relocation. */
239 HOWTO (R_PPC_ADDR16, /* type */
240 0, /* rightshift */
241 1, /* size (0 = byte, 1 = short, 2 = long) */
242 16, /* bitsize */
b34976b6 243 FALSE, /* pc_relative */
252b5132
RH
244 0, /* bitpos */
245 complain_overflow_bitfield, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_PPC_ADDR16", /* name */
b34976b6 248 FALSE, /* partial_inplace */
252b5132
RH
249 0, /* src_mask */
250 0xffff, /* dst_mask */
b34976b6 251 FALSE), /* pcrel_offset */
252b5132
RH
252
253 /* A 16 bit relocation without overflow. */
254 HOWTO (R_PPC_ADDR16_LO, /* type */
255 0, /* rightshift */
256 1, /* size (0 = byte, 1 = short, 2 = long) */
257 16, /* bitsize */
b34976b6 258 FALSE, /* pc_relative */
252b5132
RH
259 0, /* bitpos */
260 complain_overflow_dont,/* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_PPC_ADDR16_LO", /* name */
b34976b6 263 FALSE, /* partial_inplace */
252b5132
RH
264 0, /* src_mask */
265 0xffff, /* dst_mask */
b34976b6 266 FALSE), /* pcrel_offset */
252b5132
RH
267
268 /* The high order 16 bits of an address. */
269 HOWTO (R_PPC_ADDR16_HI, /* type */
270 16, /* rightshift */
271 1, /* size (0 = byte, 1 = short, 2 = long) */
272 16, /* bitsize */
b34976b6 273 FALSE, /* pc_relative */
252b5132
RH
274 0, /* bitpos */
275 complain_overflow_dont, /* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_PPC_ADDR16_HI", /* name */
b34976b6 278 FALSE, /* partial_inplace */
252b5132
RH
279 0, /* src_mask */
280 0xffff, /* dst_mask */
b34976b6 281 FALSE), /* pcrel_offset */
252b5132
RH
282
283 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 284 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
285 HOWTO (R_PPC_ADDR16_HA, /* type */
286 16, /* rightshift */
287 1, /* size (0 = byte, 1 = short, 2 = long) */
288 16, /* bitsize */
b34976b6 289 FALSE, /* pc_relative */
252b5132
RH
290 0, /* bitpos */
291 complain_overflow_dont, /* complain_on_overflow */
292 ppc_elf_addr16_ha_reloc, /* special_function */
293 "R_PPC_ADDR16_HA", /* name */
b34976b6 294 FALSE, /* partial_inplace */
252b5132
RH
295 0, /* src_mask */
296 0xffff, /* dst_mask */
b34976b6 297 FALSE), /* pcrel_offset */
252b5132
RH
298
299 /* An absolute 16 bit branch; the lower two bits must be zero.
300 FIXME: we don't check that, we just clear them. */
301 HOWTO (R_PPC_ADDR14, /* type */
302 0, /* rightshift */
303 2, /* size (0 = byte, 1 = short, 2 = long) */
304 16, /* bitsize */
b34976b6 305 FALSE, /* pc_relative */
252b5132 306 0, /* bitpos */
86c95733 307 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
308 bfd_elf_generic_reloc, /* special_function */
309 "R_PPC_ADDR14", /* name */
b34976b6 310 FALSE, /* partial_inplace */
252b5132
RH
311 0, /* src_mask */
312 0xfffc, /* dst_mask */
b34976b6 313 FALSE), /* pcrel_offset */
252b5132
RH
314
315 /* An absolute 16 bit branch, for which bit 10 should be set to
316 indicate that the branch is expected to be taken. The lower two
8da6118f 317 bits must be zero. */
252b5132
RH
318 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
319 0, /* rightshift */
320 2, /* size (0 = byte, 1 = short, 2 = long) */
321 16, /* bitsize */
b34976b6 322 FALSE, /* pc_relative */
252b5132 323 0, /* bitpos */
86c95733 324 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
325 bfd_elf_generic_reloc, /* special_function */
326 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 327 FALSE, /* partial_inplace */
252b5132
RH
328 0, /* src_mask */
329 0xfffc, /* dst_mask */
b34976b6 330 FALSE), /* pcrel_offset */
252b5132
RH
331
332 /* An absolute 16 bit branch, for which bit 10 should be set to
333 indicate that the branch is not expected to be taken. The lower
334 two bits must be zero. */
335 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
b34976b6 339 FALSE, /* pc_relative */
252b5132 340 0, /* bitpos */
86c95733 341 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
342 bfd_elf_generic_reloc, /* special_function */
343 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 344 FALSE, /* partial_inplace */
252b5132
RH
345 0, /* src_mask */
346 0xfffc, /* dst_mask */
b34976b6 347 FALSE), /* pcrel_offset */
252b5132 348
8da6118f 349 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
350 HOWTO (R_PPC_REL24, /* type */
351 0, /* rightshift */
352 2, /* size (0 = byte, 1 = short, 2 = long) */
353 26, /* bitsize */
b34976b6 354 TRUE, /* pc_relative */
252b5132
RH
355 0, /* bitpos */
356 complain_overflow_signed, /* complain_on_overflow */
357 bfd_elf_generic_reloc, /* special_function */
358 "R_PPC_REL24", /* name */
b34976b6 359 FALSE, /* partial_inplace */
252b5132
RH
360 0, /* src_mask */
361 0x3fffffc, /* dst_mask */
b34976b6 362 TRUE), /* pcrel_offset */
252b5132 363
8da6118f 364 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
365 HOWTO (R_PPC_REL14, /* type */
366 0, /* rightshift */
367 2, /* size (0 = byte, 1 = short, 2 = long) */
368 16, /* bitsize */
b34976b6 369 TRUE, /* pc_relative */
252b5132
RH
370 0, /* bitpos */
371 complain_overflow_signed, /* complain_on_overflow */
372 bfd_elf_generic_reloc, /* special_function */
373 "R_PPC_REL14", /* name */
b34976b6 374 FALSE, /* partial_inplace */
252b5132
RH
375 0, /* src_mask */
376 0xfffc, /* dst_mask */
b34976b6 377 TRUE), /* pcrel_offset */
252b5132 378
8da6118f 379 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
380 the branch is expected to be taken. The lower two bits must be
381 zero. */
382 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
383 0, /* rightshift */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
385 16, /* bitsize */
b34976b6 386 TRUE, /* pc_relative */
252b5132
RH
387 0, /* bitpos */
388 complain_overflow_signed, /* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 391 FALSE, /* partial_inplace */
252b5132
RH
392 0, /* src_mask */
393 0xfffc, /* dst_mask */
b34976b6 394 TRUE), /* pcrel_offset */
252b5132 395
8da6118f 396 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
397 the branch is not expected to be taken. The lower two bits must
398 be zero. */
399 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
400 0, /* rightshift */
401 2, /* size (0 = byte, 1 = short, 2 = long) */
402 16, /* bitsize */
b34976b6 403 TRUE, /* pc_relative */
252b5132
RH
404 0, /* bitpos */
405 complain_overflow_signed, /* complain_on_overflow */
406 bfd_elf_generic_reloc, /* special_function */
407 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 408 FALSE, /* partial_inplace */
252b5132
RH
409 0, /* src_mask */
410 0xfffc, /* dst_mask */
b34976b6 411 TRUE), /* pcrel_offset */
252b5132
RH
412
413 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
414 symbol. */
415 HOWTO (R_PPC_GOT16, /* type */
416 0, /* rightshift */
417 1, /* size (0 = byte, 1 = short, 2 = long) */
418 16, /* bitsize */
b34976b6 419 FALSE, /* pc_relative */
252b5132
RH
420 0, /* bitpos */
421 complain_overflow_signed, /* complain_on_overflow */
3ce51288 422 ppc_elf_unhandled_reloc, /* special_function */
252b5132 423 "R_PPC_GOT16", /* name */
b34976b6 424 FALSE, /* partial_inplace */
252b5132
RH
425 0, /* src_mask */
426 0xffff, /* dst_mask */
b34976b6 427 FALSE), /* pcrel_offset */
252b5132
RH
428
429 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
430 the symbol. */
431 HOWTO (R_PPC_GOT16_LO, /* type */
432 0, /* rightshift */
433 1, /* size (0 = byte, 1 = short, 2 = long) */
434 16, /* bitsize */
b34976b6 435 FALSE, /* pc_relative */
252b5132
RH
436 0, /* bitpos */
437 complain_overflow_dont, /* complain_on_overflow */
3ce51288 438 ppc_elf_unhandled_reloc, /* special_function */
252b5132 439 "R_PPC_GOT16_LO", /* name */
b34976b6 440 FALSE, /* partial_inplace */
252b5132
RH
441 0, /* src_mask */
442 0xffff, /* dst_mask */
b34976b6 443 FALSE), /* pcrel_offset */
252b5132
RH
444
445 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
446 the symbol. */
447 HOWTO (R_PPC_GOT16_HI, /* type */
448 16, /* rightshift */
449 1, /* size (0 = byte, 1 = short, 2 = long) */
450 16, /* bitsize */
b34976b6 451 FALSE, /* pc_relative */
252b5132 452 0, /* bitpos */
86c95733 453 complain_overflow_dont, /* complain_on_overflow */
3ce51288 454 ppc_elf_unhandled_reloc, /* special_function */
252b5132 455 "R_PPC_GOT16_HI", /* name */
b34976b6 456 FALSE, /* partial_inplace */
252b5132
RH
457 0, /* src_mask */
458 0xffff, /* dst_mask */
b34976b6 459 FALSE), /* pcrel_offset */
252b5132
RH
460
461 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
462 the symbol. */
463 HOWTO (R_PPC_GOT16_HA, /* type */
464 16, /* rightshift */
465 1, /* size (0 = byte, 1 = short, 2 = long) */
466 16, /* bitsize */
b34976b6 467 FALSE, /* pc_relative */
252b5132 468 0, /* bitpos */
86c95733 469 complain_overflow_dont, /* complain_on_overflow */
3ce51288 470 ppc_elf_unhandled_reloc, /* special_function */
252b5132 471 "R_PPC_GOT16_HA", /* name */
b34976b6 472 FALSE, /* partial_inplace */
252b5132
RH
473 0, /* src_mask */
474 0xffff, /* dst_mask */
b34976b6 475 FALSE), /* pcrel_offset */
252b5132
RH
476
477 /* Like R_PPC_REL24, but referring to the procedure linkage table
478 entry for the symbol. */
479 HOWTO (R_PPC_PLTREL24, /* type */
480 0, /* rightshift */
481 2, /* size (0 = byte, 1 = short, 2 = long) */
482 26, /* bitsize */
b34976b6 483 TRUE, /* pc_relative */
252b5132 484 0, /* bitpos */
3ce51288
AM
485 complain_overflow_signed, /* complain_on_overflow */
486 ppc_elf_unhandled_reloc, /* special_function */
252b5132 487 "R_PPC_PLTREL24", /* name */
b34976b6 488 FALSE, /* partial_inplace */
252b5132
RH
489 0, /* src_mask */
490 0x3fffffc, /* dst_mask */
b34976b6 491 TRUE), /* pcrel_offset */
252b5132
RH
492
493 /* This is used only by the dynamic linker. The symbol should exist
494 both in the object being run and in some shared library. The
495 dynamic linker copies the data addressed by the symbol from the
496 shared library into the object, because the object being
497 run has to have the data at some particular address. */
498 HOWTO (R_PPC_COPY, /* type */
499 0, /* rightshift */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
501 32, /* bitsize */
b34976b6 502 FALSE, /* pc_relative */
252b5132 503 0, /* bitpos */
86c95733 504 complain_overflow_dont, /* complain_on_overflow */
3ce51288 505 ppc_elf_unhandled_reloc, /* special_function */
252b5132 506 "R_PPC_COPY", /* name */
b34976b6 507 FALSE, /* partial_inplace */
252b5132
RH
508 0, /* src_mask */
509 0, /* dst_mask */
b34976b6 510 FALSE), /* pcrel_offset */
252b5132
RH
511
512 /* Like R_PPC_ADDR32, but used when setting global offset table
513 entries. */
514 HOWTO (R_PPC_GLOB_DAT, /* type */
515 0, /* rightshift */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
517 32, /* bitsize */
b34976b6 518 FALSE, /* pc_relative */
252b5132 519 0, /* bitpos */
86c95733 520 complain_overflow_dont, /* complain_on_overflow */
3ce51288 521 ppc_elf_unhandled_reloc, /* special_function */
252b5132 522 "R_PPC_GLOB_DAT", /* name */
b34976b6 523 FALSE, /* partial_inplace */
252b5132
RH
524 0, /* src_mask */
525 0xffffffff, /* dst_mask */
b34976b6 526 FALSE), /* pcrel_offset */
252b5132
RH
527
528 /* Marks a procedure linkage table entry for a symbol. */
529 HOWTO (R_PPC_JMP_SLOT, /* type */
530 0, /* rightshift */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
532 32, /* bitsize */
b34976b6 533 FALSE, /* pc_relative */
252b5132 534 0, /* bitpos */
86c95733 535 complain_overflow_dont, /* complain_on_overflow */
3ce51288 536 ppc_elf_unhandled_reloc, /* special_function */
252b5132 537 "R_PPC_JMP_SLOT", /* name */
b34976b6 538 FALSE, /* partial_inplace */
252b5132
RH
539 0, /* src_mask */
540 0, /* dst_mask */
b34976b6 541 FALSE), /* pcrel_offset */
252b5132
RH
542
543 /* Used only by the dynamic linker. When the object is run, this
544 longword is set to the load address of the object, plus the
545 addend. */
546 HOWTO (R_PPC_RELATIVE, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 32, /* bitsize */
b34976b6 550 FALSE, /* pc_relative */
252b5132 551 0, /* bitpos */
86c95733 552 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
553 bfd_elf_generic_reloc, /* special_function */
554 "R_PPC_RELATIVE", /* name */
b34976b6 555 FALSE, /* partial_inplace */
252b5132
RH
556 0, /* src_mask */
557 0xffffffff, /* dst_mask */
b34976b6 558 FALSE), /* pcrel_offset */
252b5132
RH
559
560 /* Like R_PPC_REL24, but uses the value of the symbol within the
561 object rather than the final value. Normally used for
562 _GLOBAL_OFFSET_TABLE_. */
563 HOWTO (R_PPC_LOCAL24PC, /* type */
564 0, /* rightshift */
565 2, /* size (0 = byte, 1 = short, 2 = long) */
566 26, /* bitsize */
b34976b6 567 TRUE, /* pc_relative */
252b5132
RH
568 0, /* bitpos */
569 complain_overflow_signed, /* complain_on_overflow */
570 bfd_elf_generic_reloc, /* special_function */
571 "R_PPC_LOCAL24PC", /* name */
b34976b6 572 FALSE, /* partial_inplace */
252b5132
RH
573 0, /* src_mask */
574 0x3fffffc, /* dst_mask */
b34976b6 575 TRUE), /* pcrel_offset */
252b5132
RH
576
577 /* Like R_PPC_ADDR32, but may be unaligned. */
578 HOWTO (R_PPC_UADDR32, /* type */
579 0, /* rightshift */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
581 32, /* bitsize */
b34976b6 582 FALSE, /* pc_relative */
252b5132 583 0, /* bitpos */
86c95733 584 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
585 bfd_elf_generic_reloc, /* special_function */
586 "R_PPC_UADDR32", /* name */
b34976b6 587 FALSE, /* partial_inplace */
252b5132
RH
588 0, /* src_mask */
589 0xffffffff, /* dst_mask */
b34976b6 590 FALSE), /* pcrel_offset */
252b5132
RH
591
592 /* Like R_PPC_ADDR16, but may be unaligned. */
593 HOWTO (R_PPC_UADDR16, /* type */
594 0, /* rightshift */
595 1, /* size (0 = byte, 1 = short, 2 = long) */
596 16, /* bitsize */
b34976b6 597 FALSE, /* pc_relative */
252b5132
RH
598 0, /* bitpos */
599 complain_overflow_bitfield, /* complain_on_overflow */
600 bfd_elf_generic_reloc, /* special_function */
601 "R_PPC_UADDR16", /* name */
b34976b6 602 FALSE, /* partial_inplace */
252b5132
RH
603 0, /* src_mask */
604 0xffff, /* dst_mask */
b34976b6 605 FALSE), /* pcrel_offset */
252b5132
RH
606
607 /* 32-bit PC relative */
608 HOWTO (R_PPC_REL32, /* type */
609 0, /* rightshift */
610 2, /* size (0 = byte, 1 = short, 2 = long) */
611 32, /* bitsize */
b34976b6 612 TRUE, /* pc_relative */
252b5132 613 0, /* bitpos */
86c95733 614 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
615 bfd_elf_generic_reloc, /* special_function */
616 "R_PPC_REL32", /* name */
b34976b6 617 FALSE, /* partial_inplace */
252b5132
RH
618 0, /* src_mask */
619 0xffffffff, /* dst_mask */
b34976b6 620 TRUE), /* pcrel_offset */
252b5132
RH
621
622 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 623 FIXME: not supported. */
252b5132
RH
624 HOWTO (R_PPC_PLT32, /* type */
625 0, /* rightshift */
626 2, /* size (0 = byte, 1 = short, 2 = long) */
627 32, /* bitsize */
b34976b6 628 FALSE, /* pc_relative */
252b5132 629 0, /* bitpos */
86c95733 630 complain_overflow_dont, /* complain_on_overflow */
3ce51288 631 ppc_elf_unhandled_reloc, /* special_function */
252b5132 632 "R_PPC_PLT32", /* name */
b34976b6 633 FALSE, /* partial_inplace */
252b5132
RH
634 0, /* src_mask */
635 0, /* dst_mask */
b34976b6 636 FALSE), /* pcrel_offset */
252b5132
RH
637
638 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 639 FIXME: not supported. */
252b5132
RH
640 HOWTO (R_PPC_PLTREL32, /* type */
641 0, /* rightshift */
642 2, /* size (0 = byte, 1 = short, 2 = long) */
643 32, /* bitsize */
b34976b6 644 TRUE, /* pc_relative */
252b5132 645 0, /* bitpos */
86c95733 646 complain_overflow_dont, /* complain_on_overflow */
3ce51288 647 ppc_elf_unhandled_reloc, /* special_function */
252b5132 648 "R_PPC_PLTREL32", /* name */
b34976b6 649 FALSE, /* partial_inplace */
252b5132
RH
650 0, /* src_mask */
651 0, /* dst_mask */
b34976b6 652 TRUE), /* pcrel_offset */
252b5132
RH
653
654 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
655 the symbol. */
656 HOWTO (R_PPC_PLT16_LO, /* type */
657 0, /* rightshift */
658 1, /* size (0 = byte, 1 = short, 2 = long) */
659 16, /* bitsize */
b34976b6 660 FALSE, /* pc_relative */
252b5132
RH
661 0, /* bitpos */
662 complain_overflow_dont, /* complain_on_overflow */
3ce51288 663 ppc_elf_unhandled_reloc, /* special_function */
252b5132 664 "R_PPC_PLT16_LO", /* name */
b34976b6 665 FALSE, /* partial_inplace */
252b5132
RH
666 0, /* src_mask */
667 0xffff, /* dst_mask */
b34976b6 668 FALSE), /* pcrel_offset */
252b5132
RH
669
670 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
671 the symbol. */
672 HOWTO (R_PPC_PLT16_HI, /* type */
673 16, /* rightshift */
674 1, /* size (0 = byte, 1 = short, 2 = long) */
675 16, /* bitsize */
b34976b6 676 FALSE, /* pc_relative */
252b5132 677 0, /* bitpos */
86c95733 678 complain_overflow_dont, /* complain_on_overflow */
3ce51288 679 ppc_elf_unhandled_reloc, /* special_function */
252b5132 680 "R_PPC_PLT16_HI", /* name */
b34976b6 681 FALSE, /* partial_inplace */
252b5132
RH
682 0, /* src_mask */
683 0xffff, /* dst_mask */
b34976b6 684 FALSE), /* pcrel_offset */
252b5132
RH
685
686 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
687 the symbol. */
688 HOWTO (R_PPC_PLT16_HA, /* type */
689 16, /* rightshift */
690 1, /* size (0 = byte, 1 = short, 2 = long) */
691 16, /* bitsize */
b34976b6 692 FALSE, /* pc_relative */
252b5132 693 0, /* bitpos */
86c95733 694 complain_overflow_dont, /* complain_on_overflow */
3ce51288 695 ppc_elf_unhandled_reloc, /* special_function */
252b5132 696 "R_PPC_PLT16_HA", /* name */
b34976b6 697 FALSE, /* partial_inplace */
252b5132
RH
698 0, /* src_mask */
699 0xffff, /* dst_mask */
b34976b6 700 FALSE), /* pcrel_offset */
252b5132
RH
701
702 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
703 small data items. */
704 HOWTO (R_PPC_SDAREL16, /* type */
705 0, /* rightshift */
706 1, /* size (0 = byte, 1 = short, 2 = long) */
707 16, /* bitsize */
b34976b6 708 FALSE, /* pc_relative */
252b5132
RH
709 0, /* bitpos */
710 complain_overflow_signed, /* complain_on_overflow */
3ce51288 711 ppc_elf_unhandled_reloc, /* special_function */
252b5132 712 "R_PPC_SDAREL16", /* name */
b34976b6 713 FALSE, /* partial_inplace */
252b5132
RH
714 0, /* src_mask */
715 0xffff, /* dst_mask */
b34976b6 716 FALSE), /* pcrel_offset */
252b5132 717
c061c2d8 718 /* 16-bit section relative relocation. */
252b5132
RH
719 HOWTO (R_PPC_SECTOFF, /* type */
720 0, /* rightshift */
c061c2d8
AM
721 1, /* size (0 = byte, 1 = short, 2 = long) */
722 16, /* bitsize */
b34976b6 723 FALSE, /* pc_relative */
252b5132 724 0, /* bitpos */
86c95733 725 complain_overflow_signed, /* complain_on_overflow */
3ce51288 726 ppc_elf_unhandled_reloc, /* special_function */
252b5132 727 "R_PPC_SECTOFF", /* name */
b34976b6 728 FALSE, /* partial_inplace */
252b5132 729 0, /* src_mask */
c061c2d8 730 0xffff, /* dst_mask */
b34976b6 731 FALSE), /* pcrel_offset */
252b5132 732
c3668558 733 /* 16-bit lower half section relative relocation. */
252b5132
RH
734 HOWTO (R_PPC_SECTOFF_LO, /* type */
735 0, /* rightshift */
736 1, /* size (0 = byte, 1 = short, 2 = long) */
737 16, /* bitsize */
b34976b6 738 FALSE, /* pc_relative */
252b5132
RH
739 0, /* bitpos */
740 complain_overflow_dont, /* complain_on_overflow */
3ce51288 741 ppc_elf_unhandled_reloc, /* special_function */
252b5132 742 "R_PPC_SECTOFF_LO", /* name */
b34976b6 743 FALSE, /* partial_inplace */
252b5132
RH
744 0, /* src_mask */
745 0xffff, /* dst_mask */
b34976b6 746 FALSE), /* pcrel_offset */
252b5132 747
c3668558 748 /* 16-bit upper half section relative relocation. */
252b5132
RH
749 HOWTO (R_PPC_SECTOFF_HI, /* type */
750 16, /* rightshift */
751 1, /* size (0 = byte, 1 = short, 2 = long) */
752 16, /* bitsize */
b34976b6 753 FALSE, /* pc_relative */
252b5132 754 0, /* bitpos */
86c95733 755 complain_overflow_dont, /* complain_on_overflow */
3ce51288 756 ppc_elf_unhandled_reloc, /* special_function */
252b5132 757 "R_PPC_SECTOFF_HI", /* name */
b34976b6 758 FALSE, /* partial_inplace */
252b5132
RH
759 0, /* src_mask */
760 0xffff, /* dst_mask */
b34976b6 761 FALSE), /* pcrel_offset */
252b5132 762
c3668558 763 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
764 HOWTO (R_PPC_SECTOFF_HA, /* type */
765 16, /* rightshift */
766 1, /* size (0 = byte, 1 = short, 2 = long) */
767 16, /* bitsize */
b34976b6 768 FALSE, /* pc_relative */
252b5132 769 0, /* bitpos */
86c95733 770 complain_overflow_dont, /* complain_on_overflow */
3ce51288 771 ppc_elf_unhandled_reloc, /* special_function */
252b5132 772 "R_PPC_SECTOFF_HA", /* name */
b34976b6 773 FALSE, /* partial_inplace */
252b5132
RH
774 0, /* src_mask */
775 0xffff, /* dst_mask */
b34976b6 776 FALSE), /* pcrel_offset */
252b5132 777
727fc41e 778 /* Marker relocs for TLS. */
7619e7c7 779 HOWTO (R_PPC_TLS,
252b5132
RH
780 0, /* rightshift */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
782 32, /* bitsize */
b34976b6 783 FALSE, /* pc_relative */
252b5132 784 0, /* bitpos */
7619e7c7 785 complain_overflow_dont, /* complain_on_overflow */
252b5132 786 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
787 "R_PPC_TLS", /* name */
788 FALSE, /* partial_inplace */
789 0, /* src_mask */
790 0, /* dst_mask */
791 FALSE), /* pcrel_offset */
792
727fc41e
AM
793 HOWTO (R_PPC_TLSGD,
794 0, /* rightshift */
795 2, /* size (0 = byte, 1 = short, 2 = long) */
796 32, /* bitsize */
797 FALSE, /* pc_relative */
798 0, /* bitpos */
799 complain_overflow_dont, /* complain_on_overflow */
800 bfd_elf_generic_reloc, /* special_function */
801 "R_PPC_TLSGD", /* name */
802 FALSE, /* partial_inplace */
803 0, /* src_mask */
804 0, /* dst_mask */
805 FALSE), /* pcrel_offset */
806
807 HOWTO (R_PPC_TLSLD,
808 0, /* rightshift */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
810 32, /* bitsize */
811 FALSE, /* pc_relative */
812 0, /* bitpos */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_PPC_TLSLD", /* name */
816 FALSE, /* partial_inplace */
817 0, /* src_mask */
818 0, /* dst_mask */
819 FALSE), /* pcrel_offset */
820
23cedd1d
AM
821 /* Marker relocs on inline plt call instructions. */
822 HOWTO (R_PPC_PLTSEQ,
823 0, /* rightshift */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
825 32, /* bitsize */
826 FALSE, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_dont, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_PPC_PLTSEQ", /* name */
831 FALSE, /* partial_inplace */
832 0, /* src_mask */
833 0, /* dst_mask */
834 FALSE), /* pcrel_offset */
835
836 HOWTO (R_PPC_PLTCALL,
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 32, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_dont, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_PPC_PLTCALL", /* name */
845 FALSE, /* partial_inplace */
846 0, /* src_mask */
847 0, /* dst_mask */
848 FALSE), /* pcrel_offset */
849
7619e7c7
AM
850 /* Computes the load module index of the load module that contains the
851 definition of its TLS sym. */
852 HOWTO (R_PPC_DTPMOD32,
853 0, /* rightshift */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
855 32, /* bitsize */
856 FALSE, /* pc_relative */
857 0, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
859 ppc_elf_unhandled_reloc, /* special_function */
860 "R_PPC_DTPMOD32", /* name */
b34976b6 861 FALSE, /* partial_inplace */
252b5132
RH
862 0, /* src_mask */
863 0xffffffff, /* dst_mask */
b34976b6 864 FALSE), /* pcrel_offset */
252b5132 865
7619e7c7
AM
866 /* Computes a dtv-relative displacement, the difference between the value
867 of sym+add and the base address of the thread-local storage block that
868 contains the definition of sym, minus 0x8000. */
869 HOWTO (R_PPC_DTPREL32,
870 0, /* rightshift */
871 2, /* size (0 = byte, 1 = short, 2 = long) */
872 32, /* bitsize */
873 FALSE, /* pc_relative */
874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 ppc_elf_unhandled_reloc, /* special_function */
877 "R_PPC_DTPREL32", /* name */
878 FALSE, /* partial_inplace */
879 0, /* src_mask */
880 0xffffffff, /* dst_mask */
881 FALSE), /* pcrel_offset */
882
883 /* A 16 bit dtprel reloc. */
884 HOWTO (R_PPC_DTPREL16,
252b5132
RH
885 0, /* rightshift */
886 1, /* size (0 = byte, 1 = short, 2 = long) */
887 16, /* bitsize */
b34976b6 888 FALSE, /* pc_relative */
252b5132 889 0, /* bitpos */
7619e7c7
AM
890 complain_overflow_signed, /* complain_on_overflow */
891 ppc_elf_unhandled_reloc, /* special_function */
892 "R_PPC_DTPREL16", /* name */
b34976b6 893 FALSE, /* partial_inplace */
252b5132
RH
894 0, /* src_mask */
895 0xffff, /* dst_mask */
b34976b6 896 FALSE), /* pcrel_offset */
252b5132 897
7619e7c7
AM
898 /* Like DTPREL16, but no overflow. */
899 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
900 0, /* rightshift */
901 1, /* size (0 = byte, 1 = short, 2 = long) */
902 16, /* bitsize */
b34976b6 903 FALSE, /* pc_relative */
252b5132 904 0, /* bitpos */
7619e7c7
AM
905 complain_overflow_dont, /* complain_on_overflow */
906 ppc_elf_unhandled_reloc, /* special_function */
907 "R_PPC_DTPREL16_LO", /* name */
b34976b6 908 FALSE, /* partial_inplace */
252b5132
RH
909 0, /* src_mask */
910 0xffff, /* dst_mask */
b34976b6 911 FALSE), /* pcrel_offset */
252b5132 912
7619e7c7
AM
913 /* Like DTPREL16_LO, but next higher group of 16 bits. */
914 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
915 16, /* rightshift */
916 1, /* size (0 = byte, 1 = short, 2 = long) */
917 16, /* bitsize */
b34976b6 918 FALSE, /* pc_relative */
252b5132
RH
919 0, /* bitpos */
920 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
921 ppc_elf_unhandled_reloc, /* special_function */
922 "R_PPC_DTPREL16_HI", /* name */
b34976b6 923 FALSE, /* partial_inplace */
252b5132
RH
924 0, /* src_mask */
925 0xffff, /* dst_mask */
b34976b6 926 FALSE), /* pcrel_offset */
252b5132 927
7619e7c7
AM
928 /* Like DTPREL16_HI, but adjust for low 16 bits. */
929 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
930 16, /* rightshift */
931 1, /* size (0 = byte, 1 = short, 2 = long) */
932 16, /* bitsize */
b34976b6 933 FALSE, /* pc_relative */
252b5132
RH
934 0, /* bitpos */
935 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
936 ppc_elf_unhandled_reloc, /* special_function */
937 "R_PPC_DTPREL16_HA", /* name */
b34976b6 938 FALSE, /* partial_inplace */
252b5132
RH
939 0, /* src_mask */
940 0xffff, /* dst_mask */
b34976b6 941 FALSE), /* pcrel_offset */
252b5132 942
7619e7c7
AM
943 /* Computes a tp-relative displacement, the difference between the value of
944 sym+add and the value of the thread pointer (r13). */
945 HOWTO (R_PPC_TPREL32,
946 0, /* rightshift */
947 2, /* size (0 = byte, 1 = short, 2 = long) */
948 32, /* bitsize */
949 FALSE, /* pc_relative */
950 0, /* bitpos */
951 complain_overflow_dont, /* complain_on_overflow */
952 ppc_elf_unhandled_reloc, /* special_function */
953 "R_PPC_TPREL32", /* name */
954 FALSE, /* partial_inplace */
955 0, /* src_mask */
956 0xffffffff, /* dst_mask */
957 FALSE), /* pcrel_offset */
958
959 /* A 16 bit tprel reloc. */
960 HOWTO (R_PPC_TPREL16,
252b5132
RH
961 0, /* rightshift */
962 1, /* size (0 = byte, 1 = short, 2 = long) */
963 16, /* bitsize */
b34976b6 964 FALSE, /* pc_relative */
252b5132 965 0, /* bitpos */
7619e7c7
AM
966 complain_overflow_signed, /* complain_on_overflow */
967 ppc_elf_unhandled_reloc, /* special_function */
968 "R_PPC_TPREL16", /* name */
b34976b6 969 FALSE, /* partial_inplace */
252b5132
RH
970 0, /* src_mask */
971 0xffff, /* dst_mask */
b34976b6 972 FALSE), /* pcrel_offset */
252b5132 973
7619e7c7
AM
974 /* Like TPREL16, but no overflow. */
975 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
976 0, /* rightshift */
977 1, /* size (0 = byte, 1 = short, 2 = long) */
978 16, /* bitsize */
b34976b6 979 FALSE, /* pc_relative */
252b5132 980 0, /* bitpos */
7619e7c7
AM
981 complain_overflow_dont, /* complain_on_overflow */
982 ppc_elf_unhandled_reloc, /* special_function */
983 "R_PPC_TPREL16_LO", /* name */
b34976b6 984 FALSE, /* partial_inplace */
252b5132
RH
985 0, /* src_mask */
986 0xffff, /* dst_mask */
b34976b6 987 FALSE), /* pcrel_offset */
252b5132 988
7619e7c7
AM
989 /* Like TPREL16_LO, but next higher group of 16 bits. */
990 HOWTO (R_PPC_TPREL16_HI,
991 16, /* rightshift */
992 1, /* size (0 = byte, 1 = short, 2 = long) */
993 16, /* bitsize */
994 FALSE, /* pc_relative */
995 0, /* bitpos */
996 complain_overflow_dont, /* complain_on_overflow */
997 ppc_elf_unhandled_reloc, /* special_function */
998 "R_PPC_TPREL16_HI", /* name */
999 FALSE, /* partial_inplace */
1000 0, /* src_mask */
1001 0xffff, /* dst_mask */
1002 FALSE), /* pcrel_offset */
1003
1004 /* Like TPREL16_HI, but adjust for low 16 bits. */
1005 HOWTO (R_PPC_TPREL16_HA,
1006 16, /* rightshift */
1007 1, /* size (0 = byte, 1 = short, 2 = long) */
1008 16, /* bitsize */
1009 FALSE, /* pc_relative */
1010 0, /* bitpos */
1011 complain_overflow_dont, /* complain_on_overflow */
1012 ppc_elf_unhandled_reloc, /* special_function */
1013 "R_PPC_TPREL16_HA", /* name */
1014 FALSE, /* partial_inplace */
1015 0, /* src_mask */
1016 0xffff, /* dst_mask */
1017 FALSE), /* pcrel_offset */
1018
1019 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1020 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1021 to the first entry. */
1022 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
1023 0, /* rightshift */
1024 1, /* size (0 = byte, 1 = short, 2 = long) */
1025 16, /* bitsize */
b34976b6 1026 FALSE, /* pc_relative */
252b5132
RH
1027 0, /* bitpos */
1028 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1029 ppc_elf_unhandled_reloc, /* special_function */
1030 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 1031 FALSE, /* partial_inplace */
252b5132
RH
1032 0, /* src_mask */
1033 0xffff, /* dst_mask */
b34976b6 1034 FALSE), /* pcrel_offset */
252b5132 1035
7619e7c7
AM
1036 /* Like GOT_TLSGD16, but no overflow. */
1037 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1038 0, /* rightshift */
7619e7c7 1039 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1040 16, /* bitsize */
b34976b6 1041 FALSE, /* pc_relative */
252b5132 1042 0, /* bitpos */
7619e7c7
AM
1043 complain_overflow_dont, /* complain_on_overflow */
1044 ppc_elf_unhandled_reloc, /* special_function */
1045 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1046 FALSE, /* partial_inplace */
252b5132
RH
1047 0, /* src_mask */
1048 0xffff, /* dst_mask */
b34976b6 1049 FALSE), /* pcrel_offset */
252b5132 1050
7619e7c7
AM
1051 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1052 HOWTO (R_PPC_GOT_TLSGD16_HI,
1053 16, /* rightshift */
1054 1, /* size (0 = byte, 1 = short, 2 = long) */
1055 16, /* bitsize */
1056 FALSE, /* pc_relative */
1057 0, /* bitpos */
1058 complain_overflow_dont, /* complain_on_overflow */
1059 ppc_elf_unhandled_reloc, /* special_function */
1060 "R_PPC_GOT_TLSGD16_HI", /* name */
1061 FALSE, /* partial_inplace */
1062 0, /* src_mask */
1063 0xffff, /* dst_mask */
1064 FALSE), /* pcrel_offset */
252b5132 1065
7619e7c7
AM
1066 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1067 HOWTO (R_PPC_GOT_TLSGD16_HA,
1068 16, /* rightshift */
1069 1, /* size (0 = byte, 1 = short, 2 = long) */
1070 16, /* bitsize */
1071 FALSE, /* pc_relative */
1072 0, /* bitpos */
1073 complain_overflow_dont, /* complain_on_overflow */
1074 ppc_elf_unhandled_reloc, /* special_function */
1075 "R_PPC_GOT_TLSGD16_HA", /* name */
1076 FALSE, /* partial_inplace */
1077 0, /* src_mask */
1078 0xffff, /* dst_mask */
1079 FALSE), /* pcrel_offset */
1080
1081 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1082 with values (sym+add)@dtpmod and zero, and computes the offset to the
1083 first entry. */
1084 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1085 0, /* rightshift */
1086 1, /* size (0 = byte, 1 = short, 2 = long) */
1087 16, /* bitsize */
7619e7c7 1088 FALSE, /* pc_relative */
252b5132
RH
1089 0, /* bitpos */
1090 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1091 ppc_elf_unhandled_reloc, /* special_function */
1092 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1093 FALSE, /* partial_inplace */
252b5132
RH
1094 0, /* src_mask */
1095 0xffff, /* dst_mask */
b34976b6 1096 FALSE), /* pcrel_offset */
252b5132 1097
7619e7c7
AM
1098 /* Like GOT_TLSLD16, but no overflow. */
1099 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1100 0, /* rightshift */
7619e7c7
AM
1101 1, /* size (0 = byte, 1 = short, 2 = long) */
1102 16, /* bitsize */
b34976b6 1103 FALSE, /* pc_relative */
252b5132
RH
1104 0, /* bitpos */
1105 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1106 ppc_elf_unhandled_reloc, /* special_function */
1107 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1108 FALSE, /* partial_inplace */
252b5132 1109 0, /* src_mask */
7619e7c7 1110 0xffff, /* dst_mask */
b34976b6 1111 FALSE), /* pcrel_offset */
252b5132 1112
7619e7c7
AM
1113 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1114 HOWTO (R_PPC_GOT_TLSLD16_HI,
1115 16, /* rightshift */
1116 1, /* size (0 = byte, 1 = short, 2 = long) */
1117 16, /* bitsize */
b34976b6 1118 FALSE, /* pc_relative */
252b5132
RH
1119 0, /* bitpos */
1120 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1121 ppc_elf_unhandled_reloc, /* special_function */
1122 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1123 FALSE, /* partial_inplace */
252b5132 1124 0, /* src_mask */
7619e7c7 1125 0xffff, /* dst_mask */
b34976b6 1126 FALSE), /* pcrel_offset */
252b5132 1127
7619e7c7
AM
1128 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1129 HOWTO (R_PPC_GOT_TLSLD16_HA,
1130 16, /* rightshift */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1132 16, /* bitsize */
1133 FALSE, /* pc_relative */
1134 0, /* bitpos */
1135 complain_overflow_dont, /* complain_on_overflow */
1136 ppc_elf_unhandled_reloc, /* special_function */
1137 "R_PPC_GOT_TLSLD16_HA", /* name */
1138 FALSE, /* partial_inplace */
1139 0, /* src_mask */
1140 0xffff, /* dst_mask */
1141 FALSE), /* pcrel_offset */
1142
1143 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1144 the offset to the entry. */
1145 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1146 0, /* rightshift */
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1148 16, /* bitsize */
b34976b6 1149 FALSE, /* pc_relative */
252b5132
RH
1150 0, /* bitpos */
1151 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1152 ppc_elf_unhandled_reloc, /* special_function */
1153 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1154 FALSE, /* partial_inplace */
252b5132
RH
1155 0, /* src_mask */
1156 0xffff, /* dst_mask */
b34976b6 1157 FALSE), /* pcrel_offset */
252b5132 1158
7619e7c7
AM
1159 /* Like GOT_DTPREL16, but no overflow. */
1160 HOWTO (R_PPC_GOT_DTPREL16_LO,
1161 0, /* rightshift */
1162 1, /* size (0 = byte, 1 = short, 2 = long) */
1163 16, /* bitsize */
1164 FALSE, /* pc_relative */
1165 0, /* bitpos */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 ppc_elf_unhandled_reloc, /* special_function */
1168 "R_PPC_GOT_DTPREL16_LO", /* name */
1169 FALSE, /* partial_inplace */
1170 0, /* src_mask */
1171 0xffff, /* dst_mask */
1172 FALSE), /* pcrel_offset */
252b5132 1173
7619e7c7
AM
1174 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1175 HOWTO (R_PPC_GOT_DTPREL16_HI,
1176 16, /* rightshift */
1177 1, /* size (0 = byte, 1 = short, 2 = long) */
1178 16, /* bitsize */
1179 FALSE, /* pc_relative */
1180 0, /* bitpos */
1181 complain_overflow_dont, /* complain_on_overflow */
1182 ppc_elf_unhandled_reloc, /* special_function */
1183 "R_PPC_GOT_DTPREL16_HI", /* name */
1184 FALSE, /* partial_inplace */
1185 0, /* src_mask */
1186 0xffff, /* dst_mask */
1187 FALSE), /* pcrel_offset */
252b5132 1188
7619e7c7
AM
1189 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1190 HOWTO (R_PPC_GOT_DTPREL16_HA,
1191 16, /* rightshift */
1192 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 16, /* bitsize */
1194 FALSE, /* pc_relative */
1195 0, /* bitpos */
1196 complain_overflow_dont, /* complain_on_overflow */
1197 ppc_elf_unhandled_reloc, /* special_function */
1198 "R_PPC_GOT_DTPREL16_HA", /* name */
1199 FALSE, /* partial_inplace */
1200 0, /* src_mask */
1201 0xffff, /* dst_mask */
1202 FALSE), /* pcrel_offset */
c3668558 1203
7619e7c7
AM
1204 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1205 offset to the entry. */
1206 HOWTO (R_PPC_GOT_TPREL16,
1207 0, /* rightshift */
1208 1, /* size (0 = byte, 1 = short, 2 = long) */
1209 16, /* bitsize */
1210 FALSE, /* pc_relative */
1211 0, /* bitpos */
1212 complain_overflow_signed, /* complain_on_overflow */
1213 ppc_elf_unhandled_reloc, /* special_function */
1214 "R_PPC_GOT_TPREL16", /* name */
1215 FALSE, /* partial_inplace */
1216 0, /* src_mask */
1217 0xffff, /* dst_mask */
1218 FALSE), /* pcrel_offset */
1219
1220 /* Like GOT_TPREL16, but no overflow. */
1221 HOWTO (R_PPC_GOT_TPREL16_LO,
1222 0, /* rightshift */
1223 1, /* size (0 = byte, 1 = short, 2 = long) */
1224 16, /* bitsize */
1225 FALSE, /* pc_relative */
1226 0, /* bitpos */
1227 complain_overflow_dont, /* complain_on_overflow */
1228 ppc_elf_unhandled_reloc, /* special_function */
1229 "R_PPC_GOT_TPREL16_LO", /* name */
1230 FALSE, /* partial_inplace */
1231 0, /* src_mask */
1232 0xffff, /* dst_mask */
1233 FALSE), /* pcrel_offset */
1234
1235 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1236 HOWTO (R_PPC_GOT_TPREL16_HI,
1237 16, /* rightshift */
1238 1, /* size (0 = byte, 1 = short, 2 = long) */
1239 16, /* bitsize */
1240 FALSE, /* pc_relative */
1241 0, /* bitpos */
1242 complain_overflow_dont, /* complain_on_overflow */
1243 ppc_elf_unhandled_reloc, /* special_function */
1244 "R_PPC_GOT_TPREL16_HI", /* name */
1245 FALSE, /* partial_inplace */
1246 0, /* src_mask */
1247 0xffff, /* dst_mask */
1248 FALSE), /* pcrel_offset */
1249
1250 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1251 HOWTO (R_PPC_GOT_TPREL16_HA,
1252 16, /* rightshift */
1253 1, /* size (0 = byte, 1 = short, 2 = long) */
1254 16, /* bitsize */
1255 FALSE, /* pc_relative */
1256 0, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 ppc_elf_unhandled_reloc, /* special_function */
1259 "R_PPC_GOT_TPREL16_HA", /* name */
1260 FALSE, /* partial_inplace */
1261 0, /* src_mask */
1262 0xffff, /* dst_mask */
1263 FALSE), /* pcrel_offset */
1264
1265 /* The remaining relocs are from the Embedded ELF ABI, and are not
1266 in the SVR4 ELF ABI. */
1267
1268 /* 32 bit value resulting from the addend minus the symbol. */
1269 HOWTO (R_PPC_EMB_NADDR32, /* type */
1270 0, /* rightshift */
1271 2, /* size (0 = byte, 1 = short, 2 = long) */
1272 32, /* bitsize */
1273 FALSE, /* pc_relative */
1274 0, /* bitpos */
86c95733 1275 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1276 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1277 "R_PPC_EMB_NADDR32", /* name */
1278 FALSE, /* partial_inplace */
1279 0, /* src_mask */
1280 0xffffffff, /* dst_mask */
1281 FALSE), /* pcrel_offset */
1282
1283 /* 16 bit value resulting from the addend minus the symbol. */
1284 HOWTO (R_PPC_EMB_NADDR16, /* type */
1285 0, /* rightshift */
1286 1, /* size (0 = byte, 1 = short, 2 = long) */
1287 16, /* bitsize */
1288 FALSE, /* pc_relative */
1289 0, /* bitpos */
86c95733 1290 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1291 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1292 "R_PPC_EMB_NADDR16", /* name */
1293 FALSE, /* partial_inplace */
1294 0, /* src_mask */
1295 0xffff, /* dst_mask */
1296 FALSE), /* pcrel_offset */
1297
1298 /* 16 bit value resulting from the addend minus the symbol. */
1299 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1300 0, /* rightshift */
1301 1, /* size (0 = byte, 1 = short, 2 = long) */
1302 16, /* bitsize */
1303 FALSE, /* pc_relative */
1304 0, /* bitpos */
1305 complain_overflow_dont,/* complain_on_overflow */
3ce51288 1306 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1307 "R_PPC_EMB_ADDR16_LO", /* name */
1308 FALSE, /* partial_inplace */
1309 0, /* src_mask */
1310 0xffff, /* dst_mask */
1311 FALSE), /* pcrel_offset */
1312
1313 /* The high order 16 bits of the addend minus the symbol. */
1314 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1315 16, /* rightshift */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 16, /* bitsize */
1318 FALSE, /* pc_relative */
1319 0, /* bitpos */
1320 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1321 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1322 "R_PPC_EMB_NADDR16_HI", /* name */
1323 FALSE, /* partial_inplace */
1324 0, /* src_mask */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* The high order 16 bits of the result of the addend minus the address,
1329 plus 1 if the contents of the low 16 bits, treated as a signed number,
1330 is negative. */
1331 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1332 16, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1338 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1339 "R_PPC_EMB_NADDR16_HA", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* 16 bit value resulting from allocating a 4 byte word to hold an
1346 address in the .sdata section, and returning the offset from
1347 _SDA_BASE_ for that relocation. */
1348 HOWTO (R_PPC_EMB_SDAI16, /* type */
1349 0, /* rightshift */
1350 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 16, /* bitsize */
1352 FALSE, /* pc_relative */
1353 0, /* bitpos */
bd6c6e2b 1354 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1355 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1356 "R_PPC_EMB_SDAI16", /* name */
1357 FALSE, /* partial_inplace */
1358 0, /* src_mask */
1359 0xffff, /* dst_mask */
1360 FALSE), /* pcrel_offset */
1361
1362 /* 16 bit value resulting from allocating a 4 byte word to hold an
1363 address in the .sdata2 section, and returning the offset from
1364 _SDA2_BASE_ for that relocation. */
1365 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1366 0, /* rightshift */
1367 1, /* size (0 = byte, 1 = short, 2 = long) */
1368 16, /* bitsize */
1369 FALSE, /* pc_relative */
1370 0, /* bitpos */
bd6c6e2b 1371 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1372 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1373 "R_PPC_EMB_SDA2I16", /* name */
1374 FALSE, /* partial_inplace */
1375 0, /* src_mask */
1376 0xffff, /* dst_mask */
1377 FALSE), /* pcrel_offset */
1378
1379 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1380 small data items. */
1381 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1382 0, /* rightshift */
1383 1, /* size (0 = byte, 1 = short, 2 = long) */
1384 16, /* bitsize */
1385 FALSE, /* pc_relative */
1386 0, /* bitpos */
1387 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1388 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1389 "R_PPC_EMB_SDA2REL", /* name */
1390 FALSE, /* partial_inplace */
1391 0, /* src_mask */
1392 0xffff, /* dst_mask */
1393 FALSE), /* pcrel_offset */
1394
1395 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1396 signed offset from the appropriate base, and filling in the register
1397 field with the appropriate register (0, 2, or 13). */
1398 HOWTO (R_PPC_EMB_SDA21, /* type */
1399 0, /* rightshift */
1400 2, /* size (0 = byte, 1 = short, 2 = long) */
1401 16, /* bitsize */
1402 FALSE, /* pc_relative */
1403 0, /* bitpos */
1404 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1405 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1406 "R_PPC_EMB_SDA21", /* name */
1407 FALSE, /* partial_inplace */
1408 0, /* src_mask */
1409 0xffff, /* dst_mask */
1410 FALSE), /* pcrel_offset */
1411
1412 /* Relocation not handled: R_PPC_EMB_MRKREF */
1413 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1414 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1415 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1416 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1417 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1418
1419 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1420 in the 16 bit signed offset from the appropriate base, and filling in the
1421 register field with the appropriate register (0, 2, or 13). */
1422 HOWTO (R_PPC_EMB_RELSDA, /* type */
1423 0, /* rightshift */
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 16, /* bitsize */
ddfd6795 1426 FALSE, /* pc_relative */
25dbc73a
AM
1427 0, /* bitpos */
1428 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1429 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1430 "R_PPC_EMB_RELSDA", /* name */
1431 FALSE, /* partial_inplace */
1432 0, /* src_mask */
1433 0xffff, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1435
b9c361e0
JL
1436 /* A relative 8 bit branch. */
1437 HOWTO (R_PPC_VLE_REL8, /* type */
1438 1, /* rightshift */
1439 1, /* size (0 = byte, 1 = short, 2 = long) */
1440 8, /* bitsize */
1441 TRUE, /* pc_relative */
1442 0, /* bitpos */
1443 complain_overflow_signed, /* complain_on_overflow */
1444 bfd_elf_generic_reloc, /* special_function */
1445 "R_PPC_VLE_REL8", /* name */
1446 FALSE, /* partial_inplace */
1447 0, /* src_mask */
1448 0xff, /* dst_mask */
1449 TRUE), /* pcrel_offset */
68ffbac6 1450
b9c361e0
JL
1451 /* A relative 15 bit branch. */
1452 HOWTO (R_PPC_VLE_REL15, /* type */
1453 1, /* rightshift */
1454 2, /* size (0 = byte, 1 = short, 2 = long) */
1455 15, /* bitsize */
1456 TRUE, /* pc_relative */
1457 1, /* bitpos */
1458 complain_overflow_signed, /* complain_on_overflow */
1459 bfd_elf_generic_reloc, /* special_function */
1460 "R_PPC_VLE_REL15", /* name */
1461 FALSE, /* partial_inplace */
1462 0, /* src_mask */
dfdaec14 1463 0xfffe, /* dst_mask */
b9c361e0
JL
1464 TRUE), /* pcrel_offset */
1465
68ffbac6 1466 /* A relative 24 bit branch. */
b9c361e0
JL
1467 HOWTO (R_PPC_VLE_REL24, /* type */
1468 1, /* rightshift */
1469 2, /* size (0 = byte, 1 = short, 2 = long) */
1470 24, /* bitsize */
1471 TRUE, /* pc_relative */
1472 1, /* bitpos */
1473 complain_overflow_signed, /* complain_on_overflow */
1474 bfd_elf_generic_reloc, /* special_function */
1475 "R_PPC_VLE_REL24", /* name */
1476 FALSE, /* partial_inplace */
1477 0, /* src_mask */
1478 0x1fffffe, /* dst_mask */
1479 TRUE), /* pcrel_offset */
1480
1481 /* The 16 LSBS in split16a format. */
1482 HOWTO (R_PPC_VLE_LO16A, /* type */
1483 0, /* rightshift */
1484 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1485 16, /* bitsize */
bdaacd3a 1486 FALSE, /* pc_relative */
b9c361e0 1487 0, /* bitpos */
86c95733 1488 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1489 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1490 "R_PPC_VLE_LO16A", /* name */
1491 FALSE, /* partial_inplace */
1492 0, /* src_mask */
08dc996f 1493 0x1f07ff, /* dst_mask */
b9c361e0
JL
1494 FALSE), /* pcrel_offset */
1495
1496 /* The 16 LSBS in split16d format. */
1497 HOWTO (R_PPC_VLE_LO16D, /* type */
1498 0, /* rightshift */
1499 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1500 16, /* bitsize */
b9c361e0
JL
1501 FALSE, /* pc_relative */
1502 0, /* bitpos */
86c95733 1503 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1504 ppc_elf_unhandled_reloc, /* special_function */
1505 "R_PPC_VLE_LO16D", /* name */
b9c361e0
JL
1506 FALSE, /* partial_inplace */
1507 0, /* src_mask */
5499c7c7 1508 0x3e007ff, /* dst_mask */
b9c361e0
JL
1509 FALSE), /* pcrel_offset */
1510
1511 /* Bits 16-31 split16a format. */
1512 HOWTO (R_PPC_VLE_HI16A, /* type */
86c95733 1513 16, /* rightshift */
b9c361e0 1514 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1515 16, /* bitsize */
b9c361e0
JL
1516 FALSE, /* pc_relative */
1517 0, /* bitpos */
86c95733 1518 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1519 ppc_elf_unhandled_reloc, /* special_function */
1520 "R_PPC_VLE_HI16A", /* name */
b9c361e0
JL
1521 FALSE, /* partial_inplace */
1522 0, /* src_mask */
08dc996f 1523 0x1f07ff, /* dst_mask */
b9c361e0
JL
1524 FALSE), /* pcrel_offset */
1525
1526 /* Bits 16-31 split16d format. */
1527 HOWTO (R_PPC_VLE_HI16D, /* type */
86c95733 1528 16, /* rightshift */
b9c361e0 1529 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1530 16, /* bitsize */
b9c361e0
JL
1531 FALSE, /* pc_relative */
1532 0, /* bitpos */
86c95733 1533 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1534 ppc_elf_unhandled_reloc, /* special_function */
1535 "R_PPC_VLE_HI16D", /* name */
b9c361e0
JL
1536 FALSE, /* partial_inplace */
1537 0, /* src_mask */
5499c7c7 1538 0x3e007ff, /* dst_mask */
b9c361e0
JL
1539 FALSE), /* pcrel_offset */
1540
1541 /* Bits 16-31 (High Adjusted) in split16a format. */
1542 HOWTO (R_PPC_VLE_HA16A, /* type */
86c95733 1543 16, /* rightshift */
b9c361e0 1544 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1545 16, /* bitsize */
b9c361e0
JL
1546 FALSE, /* pc_relative */
1547 0, /* bitpos */
86c95733 1548 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1549 ppc_elf_unhandled_reloc, /* special_function */
1550 "R_PPC_VLE_HA16A", /* name */
b9c361e0
JL
1551 FALSE, /* partial_inplace */
1552 0, /* src_mask */
08dc996f 1553 0x1f07ff, /* dst_mask */
b9c361e0
JL
1554 FALSE), /* pcrel_offset */
1555
1556 /* Bits 16-31 (High Adjusted) in split16d format. */
1557 HOWTO (R_PPC_VLE_HA16D, /* type */
86c95733 1558 16, /* rightshift */
b9c361e0 1559 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1560 16, /* bitsize */
b9c361e0
JL
1561 FALSE, /* pc_relative */
1562 0, /* bitpos */
86c95733 1563 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1564 ppc_elf_unhandled_reloc, /* special_function */
1565 "R_PPC_VLE_HA16D", /* name */
b9c361e0
JL
1566 FALSE, /* partial_inplace */
1567 0, /* src_mask */
5499c7c7 1568 0x3e007ff, /* dst_mask */
b9c361e0
JL
1569 FALSE), /* pcrel_offset */
1570
86c95733
AM
1571 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1572 instructions. If the register base is 0 then the linker changes
1573 the e_add16i to an e_li instruction. */
1574 HOWTO (R_PPC_VLE_SDA21, /* type */
b9c361e0
JL
1575 0, /* rightshift */
1576 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1577 16, /* bitsize */
b9c361e0
JL
1578 FALSE, /* pc_relative */
1579 0, /* bitpos */
86c95733 1580 complain_overflow_signed, /* complain_on_overflow */
3ce51288
AM
1581 ppc_elf_unhandled_reloc, /* special_function */
1582 "R_PPC_VLE_SDA21", /* name */
b9c361e0
JL
1583 FALSE, /* partial_inplace */
1584 0, /* src_mask */
1585 0xffff, /* dst_mask */
1586 FALSE), /* pcrel_offset */
1587
86c95733 1588 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
b9c361e0
JL
1589 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1590 0, /* rightshift */
1591 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1592 16, /* bitsize */
b9c361e0
JL
1593 FALSE, /* pc_relative */
1594 0, /* bitpos */
86c95733 1595 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1596 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1597 "R_PPC_VLE_SDA21_LO", /* name */
1598 FALSE, /* partial_inplace */
1599 0, /* src_mask */
86c95733 1600 0xffff, /* dst_mask */
b9c361e0
JL
1601 FALSE), /* pcrel_offset */
1602
1603 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1604 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1605 0, /* rightshift */
1606 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1607 16, /* bitsize */
b9c361e0
JL
1608 FALSE, /* pc_relative */
1609 0, /* bitpos */
3ce51288
AM
1610 complain_overflow_dont, /* complain_on_overflow */
1611 ppc_elf_unhandled_reloc, /* special_function */
1612 "R_PPC_VLE_SDAREL_LO16A", /* name */
b9c361e0
JL
1613 FALSE, /* partial_inplace */
1614 0, /* src_mask */
08dc996f 1615 0x1f07ff, /* dst_mask */
b9c361e0
JL
1616 FALSE), /* pcrel_offset */
1617
1618 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
b9c361e0
JL
1619 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1620 0, /* rightshift */
1621 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1622 16, /* bitsize */
b9c361e0
JL
1623 FALSE, /* pc_relative */
1624 0, /* bitpos */
3ce51288
AM
1625 complain_overflow_dont, /* complain_on_overflow */
1626 ppc_elf_unhandled_reloc, /* special_function */
1627 "R_PPC_VLE_SDAREL_LO16D", /* name */
b9c361e0
JL
1628 FALSE, /* partial_inplace */
1629 0, /* src_mask */
5499c7c7 1630 0x3e007ff, /* dst_mask */
b9c361e0
JL
1631 FALSE), /* pcrel_offset */
1632
1633 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
3ce51288 1634 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
86c95733 1635 16, /* rightshift */
b9c361e0 1636 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1637 16, /* bitsize */
b9c361e0
JL
1638 FALSE, /* pc_relative */
1639 0, /* bitpos */
3ce51288
AM
1640 complain_overflow_dont, /* complain_on_overflow */
1641 ppc_elf_unhandled_reloc, /* special_function */
1642 "R_PPC_VLE_SDAREL_HI16A", /* name */
b9c361e0
JL
1643 FALSE, /* partial_inplace */
1644 0, /* src_mask */
08dc996f 1645 0x1f07ff, /* dst_mask */
b9c361e0
JL
1646 FALSE), /* pcrel_offset */
1647
1648 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
3ce51288 1649 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
86c95733 1650 16, /* rightshift */
b9c361e0 1651 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1652 16, /* bitsize */
b9c361e0
JL
1653 FALSE, /* pc_relative */
1654 0, /* bitpos */
3ce51288
AM
1655 complain_overflow_dont, /* complain_on_overflow */
1656 ppc_elf_unhandled_reloc, /* special_function */
1657 "R_PPC_VLE_SDAREL_HI16D", /* name */
b9c361e0
JL
1658 FALSE, /* partial_inplace */
1659 0, /* src_mask */
5499c7c7 1660 0x3e007ff, /* dst_mask */
b9c361e0
JL
1661 FALSE), /* pcrel_offset */
1662
1663 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
3ce51288 1664 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
86c95733 1665 16, /* rightshift */
b9c361e0 1666 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1667 16, /* bitsize */
b9c361e0
JL
1668 FALSE, /* pc_relative */
1669 0, /* bitpos */
3ce51288
AM
1670 complain_overflow_dont, /* complain_on_overflow */
1671 ppc_elf_unhandled_reloc, /* special_function */
1672 "R_PPC_VLE_SDAREL_HA16A", /* name */
b9c361e0
JL
1673 FALSE, /* partial_inplace */
1674 0, /* src_mask */
08dc996f 1675 0x1f07ff, /* dst_mask */
b9c361e0
JL
1676 FALSE), /* pcrel_offset */
1677
1678 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
3ce51288 1679 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
86c95733 1680 16, /* rightshift */
b9c361e0 1681 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1682 16, /* bitsize */
b9c361e0
JL
1683 FALSE, /* pc_relative */
1684 0, /* bitpos */
3ce51288
AM
1685 complain_overflow_dont, /* complain_on_overflow */
1686 ppc_elf_unhandled_reloc, /* special_function */
1687 "R_PPC_VLE_SDAREL_HA16D", /* name */
b9c361e0
JL
1688 FALSE, /* partial_inplace */
1689 0, /* src_mask */
5499c7c7 1690 0x3e007ff, /* dst_mask */
b9c361e0
JL
1691 FALSE), /* pcrel_offset */
1692
83eef883
AFB
1693 /* e_li split20 format. */
1694 HOWTO (R_PPC_VLE_ADDR20, /* type */
1695 16, /* rightshift */
1696 2, /* size (0 = byte, 1 = short, 2 = long) */
1697 20, /* bitsize */
1698 FALSE, /* pc_relative */
1699 0, /* bitpos */
1700 complain_overflow_dont, /* complain_on_overflow */
1701 bfd_elf_generic_reloc, /* special_function */
1702 "R_PPC_VLE_ADDR20", /* name */
1703 FALSE, /* partial_inplace */
1704 0, /* src_mask */
1705 0x1f07ff, /* dst_mask */
1706 FALSE), /* pcrel_offset */
1707
e054468f
AM
1708 HOWTO (R_PPC_IRELATIVE, /* type */
1709 0, /* rightshift */
1710 2, /* size (0 = byte, 1 = short, 2 = long) */
1711 32, /* bitsize */
1712 FALSE, /* pc_relative */
1713 0, /* bitpos */
86c95733 1714 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1715 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1716 "R_PPC_IRELATIVE", /* name */
1717 FALSE, /* partial_inplace */
1718 0, /* src_mask */
1719 0xffffffff, /* dst_mask */
1720 FALSE), /* pcrel_offset */
1721
d7128ce4
AM
1722 /* A 16 bit relative relocation. */
1723 HOWTO (R_PPC_REL16, /* type */
1724 0, /* rightshift */
1725 1, /* size (0 = byte, 1 = short, 2 = long) */
1726 16, /* bitsize */
1727 TRUE, /* pc_relative */
1728 0, /* bitpos */
86c95733 1729 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1730 bfd_elf_generic_reloc, /* special_function */
1731 "R_PPC_REL16", /* name */
1732 FALSE, /* partial_inplace */
1733 0, /* src_mask */
1734 0xffff, /* dst_mask */
1735 TRUE), /* pcrel_offset */
1736
1737 /* A 16 bit relative relocation without overflow. */
1738 HOWTO (R_PPC_REL16_LO, /* type */
1739 0, /* rightshift */
1740 1, /* size (0 = byte, 1 = short, 2 = long) */
1741 16, /* bitsize */
1742 TRUE, /* pc_relative */
1743 0, /* bitpos */
1744 complain_overflow_dont,/* complain_on_overflow */
1745 bfd_elf_generic_reloc, /* special_function */
1746 "R_PPC_REL16_LO", /* name */
1747 FALSE, /* partial_inplace */
1748 0, /* src_mask */
1749 0xffff, /* dst_mask */
1750 TRUE), /* pcrel_offset */
1751
1752 /* The high order 16 bits of a relative address. */
1753 HOWTO (R_PPC_REL16_HI, /* type */
1754 16, /* rightshift */
1755 1, /* size (0 = byte, 1 = short, 2 = long) */
1756 16, /* bitsize */
1757 TRUE, /* pc_relative */
1758 0, /* bitpos */
1759 complain_overflow_dont, /* complain_on_overflow */
1760 bfd_elf_generic_reloc, /* special_function */
1761 "R_PPC_REL16_HI", /* name */
1762 FALSE, /* partial_inplace */
1763 0, /* src_mask */
1764 0xffff, /* dst_mask */
1765 TRUE), /* pcrel_offset */
1766
1767 /* The high order 16 bits of a relative address, plus 1 if the contents of
1768 the low 16 bits, treated as a signed number, is negative. */
1769 HOWTO (R_PPC_REL16_HA, /* type */
1770 16, /* rightshift */
1771 1, /* size (0 = byte, 1 = short, 2 = long) */
1772 16, /* bitsize */
1773 TRUE, /* pc_relative */
1774 0, /* bitpos */
1775 complain_overflow_dont, /* complain_on_overflow */
1776 ppc_elf_addr16_ha_reloc, /* special_function */
1777 "R_PPC_REL16_HA", /* name */
1778 FALSE, /* partial_inplace */
1779 0, /* src_mask */
1780 0xffff, /* dst_mask */
1781 TRUE), /* pcrel_offset */
1782
a680de9a
PB
1783 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1784 HOWTO (R_PPC_REL16DX_HA, /* type */
1785 16, /* rightshift */
1786 2, /* size (0 = byte, 1 = short, 2 = long) */
1787 16, /* bitsize */
1788 TRUE, /* pc_relative */
1789 0, /* bitpos */
1790 complain_overflow_signed, /* complain_on_overflow */
1791 ppc_elf_addr16_ha_reloc, /* special_function */
1792 "R_PPC_REL16DX_HA", /* name */
1793 FALSE, /* partial_inplace */
1794 0, /* src_mask */
1795 0x1fffc1, /* dst_mask */
1796 TRUE), /* pcrel_offset */
1797
7ba71655
AM
1798 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1799 HOWTO (R_PPC_16DX_HA, /* type */
1800 16, /* rightshift */
1801 2, /* size (0 = byte, 1 = short, 2 = long) */
1802 16, /* bitsize */
1803 FALSE, /* pc_relative */
1804 0, /* bitpos */
1805 complain_overflow_signed, /* complain_on_overflow */
1806 ppc_elf_addr16_ha_reloc, /* special_function */
1807 "R_PPC_16DX_HA", /* name */
1808 FALSE, /* partial_inplace */
1809 0, /* src_mask */
1810 0x1fffc1, /* dst_mask */
1811 FALSE), /* pcrel_offset */
1812
25dbc73a
AM
1813 /* GNU extension to record C++ vtable hierarchy. */
1814 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1815 0, /* rightshift */
1816 0, /* size (0 = byte, 1 = short, 2 = long) */
1817 0, /* bitsize */
1818 FALSE, /* pc_relative */
1819 0, /* bitpos */
1820 complain_overflow_dont, /* complain_on_overflow */
1821 NULL, /* special_function */
1822 "R_PPC_GNU_VTINHERIT", /* name */
1823 FALSE, /* partial_inplace */
1824 0, /* src_mask */
1825 0, /* dst_mask */
1826 FALSE), /* pcrel_offset */
1827
1828 /* GNU extension to record C++ vtable member usage. */
1829 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1830 0, /* rightshift */
1831 0, /* size (0 = byte, 1 = short, 2 = long) */
1832 0, /* bitsize */
1833 FALSE, /* pc_relative */
1834 0, /* bitpos */
1835 complain_overflow_dont, /* complain_on_overflow */
1836 NULL, /* special_function */
1837 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1838 FALSE, /* partial_inplace */
1839 0, /* src_mask */
25dbc73a 1840 0, /* dst_mask */
7619e7c7
AM
1841 FALSE), /* pcrel_offset */
1842
25dbc73a
AM
1843 /* Phony reloc to handle AIX style TOC entries. */
1844 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1845 0, /* rightshift */
1846 1, /* size (0 = byte, 1 = short, 2 = long) */
1847 16, /* bitsize */
1848 FALSE, /* pc_relative */
1849 0, /* bitpos */
25dbc73a 1850 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1851 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1852 "R_PPC_TOC16", /* name */
7619e7c7
AM
1853 FALSE, /* partial_inplace */
1854 0, /* src_mask */
1855 0xffff, /* dst_mask */
1856 FALSE), /* pcrel_offset */
25dbc73a
AM
1857};
1858\f
1859/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1860
1861static void
1862ppc_elf_howto_init (void)
1863{
1864 unsigned int i, type;
1865
1866 for (i = 0;
1867 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1868 i++)
1869 {
1870 type = ppc_elf_howto_raw[i].type;
1871 if (type >= (sizeof (ppc_elf_howto_table)
1872 / sizeof (ppc_elf_howto_table[0])))
1873 abort ();
1874 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1875 }
1876}
1877
1878static reloc_howto_type *
1879ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1880 bfd_reloc_code_real_type code)
1881{
1882 enum elf_ppc_reloc_type r;
1883
1884 /* Initialize howto table if not already done. */
1885 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1886 ppc_elf_howto_init ();
1887
1888 switch (code)
1889 {
1890 default:
1891 return NULL;
1892
1893 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1894 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1895 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1896 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1897 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1898 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1899 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1900 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1901 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1902 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1903 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1904 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1905 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1906 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1907 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1908 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1909 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1910 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1911 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1912 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1913 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1914 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1915 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1916 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1917 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1918 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1919 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1920 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1921 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1922 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1923 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1924 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1925 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1926 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1927 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1928 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1929 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1930 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1931 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1932 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1933 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1934 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1935 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1936 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1937 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1938 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1939 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1940 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1941 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1942 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1943 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1944 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1945 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1946 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1947 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1948 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1949 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1950 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1951 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1952 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1953 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1954 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1955 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1956 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1957 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1958 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1959 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1960 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1961 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1962 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1963 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1964 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1965 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1966 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1967 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1968 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1969 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1970 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1971 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1972 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1973 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1974 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1975 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1976 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1977 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1978 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1979 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1980 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1981 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1982 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1983 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1984 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1985 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1986 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1987 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1988 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1989 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1990 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1991 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1992 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1993 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1994 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1995 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1996 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1997 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1998 r = R_PPC_VLE_SDAREL_LO16A;
1999 break;
2000 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
2001 r = R_PPC_VLE_SDAREL_LO16D;
2002 break;
2003 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
2004 r = R_PPC_VLE_SDAREL_HI16A;
2005 break;
2006 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
2007 r = R_PPC_VLE_SDAREL_HI16D;
2008 break;
2009 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
2010 r = R_PPC_VLE_SDAREL_HA16A;
2011 break;
2012 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
2013 r = R_PPC_VLE_SDAREL_HA16D;
2014 break;
d7128ce4
AM
2015 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2016 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2017 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2018 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
7ba71655 2019 case BFD_RELOC_PPC_16DX_HA: r = R_PPC_16DX_HA; break;
a680de9a 2020 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
2021 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2022 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2023 }
2024
2025 return ppc_elf_howto_table[r];
2026};
2027
157090f7
AM
2028static reloc_howto_type *
2029ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2030 const char *r_name)
2031{
2032 unsigned int i;
2033
2034 for (i = 0;
2035 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2036 i++)
2037 if (ppc_elf_howto_raw[i].name != NULL
2038 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2039 return &ppc_elf_howto_raw[i];
2040
2041 return NULL;
2042}
2043
25dbc73a
AM
2044/* Set the howto pointer for a PowerPC ELF reloc. */
2045
f3185997 2046static bfd_boolean
4aef7643 2047ppc_elf_info_to_howto (bfd *abfd,
25dbc73a
AM
2048 arelent *cache_ptr,
2049 Elf_Internal_Rela *dst)
2050{
cd21f5da
NC
2051 unsigned int r_type;
2052
25dbc73a
AM
2053 /* Initialize howto table if not already done. */
2054 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2055 ppc_elf_howto_init ();
2056
cd21f5da
NC
2057 r_type = ELF32_R_TYPE (dst->r_info);
2058 if (r_type >= R_PPC_max)
2059 {
695344c0 2060 /* xgettext:c-format */
0aa13fee 2061 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 2062 abfd, r_type);
cd21f5da 2063 bfd_set_error (bfd_error_bad_value);
f3185997 2064 return FALSE;
cd21f5da 2065 }
f3185997 2066
cd21f5da 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. */
f3185997 2071 if (cache_ptr->howto == NULL)
375de94a 2072 {
695344c0 2073 /* xgettext:c-format */
0aa13fee 2074 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 2075 abfd, r_type);
375de94a
AM
2076 bfd_set_error (bfd_error_bad_value);
2077
f3185997 2078 return FALSE;
375de94a 2079 }
f3185997
NC
2080
2081 return TRUE;
25dbc73a
AM
2082}
2083
d7128ce4 2084/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2085
2086static bfd_reloc_status_type
4aef7643 2087ppc_elf_addr16_ha_reloc (bfd *abfd,
25dbc73a
AM
2088 arelent *reloc_entry,
2089 asymbol *symbol,
4aef7643 2090 void *data,
25dbc73a
AM
2091 asection *input_section,
2092 bfd *output_bfd,
2093 char **error_message ATTRIBUTE_UNUSED)
2094{
a680de9a
PB
2095 enum elf_ppc_reloc_type r_type;
2096 long insn;
2097 bfd_size_type octets;
2098 bfd_vma value;
25dbc73a
AM
2099
2100 if (output_bfd != NULL)
2101 {
2102 reloc_entry->address += input_section->output_offset;
2103 return bfd_reloc_ok;
2104 }
2105
a680de9a
PB
2106 reloc_entry->addend += 0x8000;
2107 r_type = reloc_entry->howto->type;
2108 if (r_type != R_PPC_REL16DX_HA)
2109 return bfd_reloc_continue;
2110
2111 value = 0;
2112 if (!bfd_is_com_section (symbol->section))
2113 value = symbol->value;
2114 value += (reloc_entry->addend
2115 + symbol->section->output_offset
2116 + symbol->section->output_section->vma);
2117 value -= (reloc_entry->address
2118 + input_section->output_offset
2119 + input_section->output_section->vma);
2120 value >>= 16;
2121
2122 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2123 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2124 insn &= ~0x1fffc1;
2125 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2126 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2127 return bfd_reloc_ok;
25dbc73a
AM
2128}
2129
2130static bfd_reloc_status_type
2131ppc_elf_unhandled_reloc (bfd *abfd,
2132 arelent *reloc_entry,
2133 asymbol *symbol,
2134 void *data,
2135 asection *input_section,
2136 bfd *output_bfd,
2137 char **error_message)
2138{
2139 /* If this is a relocatable link (output_bfd test tells us), just
2140 call the generic function. Any adjustment will be done at final
2141 link time. */
2142 if (output_bfd != NULL)
2143 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2144 input_section, output_bfd, error_message);
2145
2146 if (error_message != NULL)
2147 {
2148 static char buf[60];
2149 sprintf (buf, _("generic linker can't handle %s"),
2150 reloc_entry->howto->name);
2151 *error_message = buf;
2152 }
2153 return bfd_reloc_dangerous;
2154}
2155\f
2156/* Sections created by the linker. */
2157
2158typedef struct elf_linker_section
2159{
c9a2f333 2160 /* Pointer to the bfd section. */
25dbc73a 2161 asection *section;
c9a2f333
AM
2162 /* Section name. */
2163 const char *name;
2164 /* Associated bss section name. */
2165 const char *bss_name;
2166 /* Associated symbol name. */
2167 const char *sym_name;
046183de
AM
2168 /* Associated symbol. */
2169 struct elf_link_hash_entry *sym;
25dbc73a
AM
2170} elf_linker_section_t;
2171
2172/* Linked list of allocated pointer entries. This hangs off of the
2173 symbol lists, and provides allows us to return different pointers,
2174 based on different addend's. */
2175
2176typedef struct elf_linker_section_pointers
2177{
2178 /* next allocated pointer for this symbol */
2179 struct elf_linker_section_pointers *next;
2180 /* offset of pointer from beginning of section */
2181 bfd_vma offset;
2182 /* addend used */
2183 bfd_vma addend;
2184 /* which linker section this is */
2185 elf_linker_section_t *lsect;
25dbc73a
AM
2186} elf_linker_section_pointers_t;
2187
2188struct ppc_elf_obj_tdata
2189{
2190 struct elf_obj_tdata elf;
2191
2192 /* A mapping from local symbols to offsets into the various linker
2193 sections added. This is index by the symbol index. */
2194 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2195
2196 /* Flags used to auto-detect plt type. */
2197 unsigned int makes_plt_call : 1;
2198 unsigned int has_rel16 : 1;
25dbc73a
AM
2199};
2200
2201#define ppc_elf_tdata(bfd) \
2202 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2203
25dbc73a
AM
2204#define elf_local_ptr_offsets(bfd) \
2205 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2206
0c8d6e5c
AM
2207#define is_ppc_elf(bfd) \
2208 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2209 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2210
25dbc73a 2211/* Override the generic function because we store some extras. */
7619e7c7 2212
25dbc73a
AM
2213static bfd_boolean
2214ppc_elf_mkobject (bfd *abfd)
2215{
0ffa91dd 2216 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2217 PPC32_ELF_DATA);
25dbc73a 2218}
7619e7c7 2219
14b57c7c
AM
2220/* When defaulting arch/mach, decode apuinfo to find a better match. */
2221
2222bfd_boolean
2223_bfd_elf_ppc_set_arch (bfd *abfd)
2224{
2225 unsigned long mach = 0;
2226 asection *s;
2227 unsigned char *contents;
2228
2229 if (abfd->arch_info->bits_per_word == 32
2230 && bfd_big_endian (abfd))
2231 {
2232
2233 for (s = abfd->sections; s != NULL; s = s->next)
2234 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2235 break;
2236 if (s != NULL)
2237 mach = bfd_mach_ppc_vle;
2238 }
2239
2240 if (mach == 0)
2241 {
2242 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2243 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2244 {
2245 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2246 unsigned int i;
2247
2248 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2249 {
2250 unsigned int val = bfd_get_32 (abfd, contents + i);
2251 switch (val >> 16)
2252 {
2253 case PPC_APUINFO_PMR:
2254 case PPC_APUINFO_RFMCI:
2255 if (mach == 0)
2256 mach = bfd_mach_ppc_titan;
2257 break;
2258
2259 case PPC_APUINFO_ISEL:
2260 case PPC_APUINFO_CACHELCK:
2261 if (mach == bfd_mach_ppc_titan)
2262 mach = bfd_mach_ppc_e500mc;
2263 break;
2264
2265 case PPC_APUINFO_SPE:
2266 case PPC_APUINFO_EFS:
2267 case PPC_APUINFO_BRLOCK:
2268 if (mach != bfd_mach_ppc_vle)
2269 mach = bfd_mach_ppc_e500;
8941017b 2270 break;
14b57c7c
AM
2271
2272 case PPC_APUINFO_VLE:
2273 mach = bfd_mach_ppc_vle;
2274 break;
2275
2276 default:
2277 mach = -1ul;
2278 }
2279 }
2280 free (contents);
2281 }
2282 }
2283
2284 if (mach != 0 && mach != -1ul)
2285 {
2286 const bfd_arch_info_type *arch;
2287
2288 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2289 if (arch->mach == mach)
2290 {
2291 abfd->arch_info = arch;
2292 break;
2293 }
2294 }
2295 return TRUE;
2296}
2297
25dbc73a 2298/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2299 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2300
25dbc73a
AM
2301static bfd_boolean
2302ppc_elf_object_p (bfd *abfd)
2303{
14b57c7c
AM
2304 if (!abfd->arch_info->the_default)
2305 return TRUE;
2306
2307 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2308 {
2309 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2310
25dbc73a
AM
2311 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2312 {
2313 /* Relies on arch after 64 bit default being 32 bit default. */
2314 abfd->arch_info = abfd->arch_info->next;
2315 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2316 }
2317 }
14b57c7c 2318 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2319}
7619e7c7 2320
25dbc73a 2321/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2322
25dbc73a
AM
2323static bfd_boolean
2324ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2325{
2326 BFD_ASSERT (!elf_flags_init (abfd)
2327 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2328
25dbc73a
AM
2329 elf_elfheader (abfd)->e_flags = flags;
2330 elf_flags_init (abfd) = TRUE;
2331 return TRUE;
2332}
2333
25dbc73a 2334/* Support for core dump NOTE sections. */
deaaf2f3 2335
b34976b6 2336static bfd_boolean
25dbc73a 2337ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2338{
25dbc73a
AM
2339 int offset;
2340 unsigned int size;
252b5132 2341
25dbc73a
AM
2342 switch (note->descsz)
2343 {
2344 default:
2345 return FALSE;
252b5132 2346
25dbc73a
AM
2347 case 268: /* Linux/PPC. */
2348 /* pr_cursig */
228e534f 2349 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2350
25dbc73a 2351 /* pr_pid */
228e534f 2352 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2353
25dbc73a
AM
2354 /* pr_reg */
2355 offset = 72;
2356 size = 192;
deaaf2f3 2357
25dbc73a
AM
2358 break;
2359 }
deaaf2f3 2360
25dbc73a
AM
2361 /* Make a ".reg/999" section. */
2362 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2363 size, note->descpos + offset);
2364}
252b5132 2365
25dbc73a
AM
2366static bfd_boolean
2367ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2368{
2369 switch (note->descsz)
deaaf2f3 2370 {
25dbc73a
AM
2371 default:
2372 return FALSE;
deaaf2f3 2373
25dbc73a 2374 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2375 elf_tdata (abfd)->core->pid
bc989cdc 2376 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2377 elf_tdata (abfd)->core->program
25dbc73a 2378 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2379 elf_tdata (abfd)->core->command
25dbc73a
AM
2380 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2381 }
9abc968f 2382
25dbc73a
AM
2383 /* Note that for some reason, a spurious space is tacked
2384 onto the end of the args in some (at least one anyway)
2385 implementations, so strip it off if it exists. */
70bccea4 2386
25dbc73a 2387 {
228e534f 2388 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2389 int n = strlen (command);
70bccea4 2390
25dbc73a
AM
2391 if (0 < n && command[n - 1] == ' ')
2392 command[n - 1] = '\0';
2393 }
deaaf2f3 2394
25dbc73a
AM
2395 return TRUE;
2396}
deaaf2f3 2397
183e98be
AM
2398static char *
2399ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2400{
2401 switch (note_type)
2402 {
2403 default:
2404 return NULL;
2405
2406 case NT_PRPSINFO:
2407 {
602f1657 2408 char data[128] ATTRIBUTE_NONSTRING;
183e98be
AM
2409 va_list ap;
2410
2411 va_start (ap, note_type);
75cd47ed 2412 memset (data, 0, sizeof (data));
183e98be 2413 strncpy (data + 32, va_arg (ap, const char *), 16);
be3e27bb 2414#if GCC_VERSION == 8000 || GCC_VERSION == 8001
95da9854 2415 DIAGNOSTIC_PUSH;
be3e27bb 2416 /* GCC 8.0 and 8.1 warn about 80 equals destination size with
95da9854
L
2417 -Wstringop-truncation:
2418 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85643
2419 */
95da9854
L
2420 DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION;
2421#endif
183e98be 2422 strncpy (data + 48, va_arg (ap, const char *), 80);
be3e27bb 2423#if GCC_VERSION == 8000 || GCC_VERSION == 8001
95da9854 2424 DIAGNOSTIC_POP;
fe75810f 2425#endif
183e98be
AM
2426 va_end (ap);
2427 return elfcore_write_note (abfd, buf, bufsiz,
2428 "CORE", note_type, data, sizeof (data));
2429 }
2430
2431 case NT_PRSTATUS:
2432 {
2433 char data[268];
2434 va_list ap;
2435 long pid;
2436 int cursig;
2437 const void *greg;
2438
2439 va_start (ap, note_type);
2440 memset (data, 0, 72);
2441 pid = va_arg (ap, long);
2442 bfd_put_32 (abfd, pid, data + 24);
2443 cursig = va_arg (ap, int);
2444 bfd_put_16 (abfd, cursig, data + 12);
2445 greg = va_arg (ap, const void *);
2446 memcpy (data + 72, greg, 192);
2447 memset (data + 264, 0, 4);
2448 va_end (ap);
2449 return elfcore_write_note (abfd, buf, bufsiz,
2450 "CORE", note_type, data, sizeof (data));
2451 }
2452 }
2453}
2454
b9c361e0 2455static flagword
68ffbac6 2456ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2457{
2458
2459 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2460 return SHF_PPC_VLE;
2461
2462 return 0;
2463}
2464
25dbc73a
AM
2465/* Return address for Ith PLT stub in section PLT, for relocation REL
2466 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2467
25dbc73a
AM
2468static bfd_vma
2469ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2470 const asection *plt ATTRIBUTE_UNUSED,
2471 const arelent *rel)
2472{
2473 return rel->address;
2474}
deaaf2f3 2475
25dbc73a 2476/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2477 is called when bfd_section_from_shdr finds a section with an unknown
2478 type. */
deaaf2f3 2479
25dbc73a 2480static bfd_boolean
6dc132d9
L
2481ppc_elf_section_from_shdr (bfd *abfd,
2482 Elf_Internal_Shdr *hdr,
2483 const char *name,
2484 int shindex)
25dbc73a
AM
2485{
2486 asection *newsect;
2487 flagword flags;
d1c6de6f 2488
6dc132d9 2489 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2490 return FALSE;
deaaf2f3 2491
25dbc73a
AM
2492 newsect = hdr->bfd_section;
2493 flags = bfd_get_section_flags (abfd, newsect);
2494 if (hdr->sh_flags & SHF_EXCLUDE)
2495 flags |= SEC_EXCLUDE;
9abc968f 2496
25dbc73a
AM
2497 if (hdr->sh_type == SHT_ORDERED)
2498 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2499
25dbc73a
AM
2500 bfd_set_section_flags (abfd, newsect, flags);
2501 return TRUE;
2502}
2503
2504/* Set up any other section flags and such that may be necessary. */
2505
2506static bfd_boolean
2507ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2508 Elf_Internal_Shdr *shdr,
2509 asection *asect)
2510{
25dbc73a
AM
2511 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2512 shdr->sh_type = SHT_ORDERED;
2513
2514 return TRUE;
2515}
2516
2517/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2518 need to bump up the number of section headers. */
2519
2520static int
a6b96beb
AM
2521ppc_elf_additional_program_headers (bfd *abfd,
2522 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2523{
2524 asection *s;
2525 int ret = 0;
d1c6de6f 2526
25dbc73a
AM
2527 s = bfd_get_section_by_name (abfd, ".sbss2");
2528 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2529 ++ret;
d1c6de6f 2530
25dbc73a
AM
2531 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2532 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2533 ++ret;
deaaf2f3 2534
25dbc73a
AM
2535 return ret;
2536}
deaaf2f3 2537
68ffbac6 2538/* Modify the segment map for VLE executables. */
b9c361e0
JL
2539
2540bfd_boolean
2541ppc_elf_modify_segment_map (bfd *abfd,
2542 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2543{
f7d69005 2544 struct elf_segment_map *m;
b9c361e0
JL
2545
2546 /* At this point in the link, output sections have already been sorted by
2547 LMA and assigned to segments. All that is left to do is to ensure
2548 there is no mixing of VLE & non-VLE sections in a text segment.
2549 If we find that case, we split the segment.
2550 We maintain the original output section order. */
2551
12bd6957 2552 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2553 {
f7d69005
AM
2554 struct elf_segment_map *n;
2555 bfd_size_type amt;
2556 unsigned int j, k;
2557 unsigned int p_flags;
2558
2559 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2560 continue;
2561
f7d69005 2562 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2563 {
f7d69005
AM
2564 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2565 p_flags |= PF_W;
2566 if ((m->sections[j]->flags & SEC_CODE) != 0)
2567 {
2568 p_flags |= PF_X;
2569 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2570 p_flags |= PF_PPC_VLE;
2571 break;
2572 }
2573 }
2574 if (j != m->count)
2575 while (++j != m->count)
2576 {
2577 unsigned int p_flags1 = PF_R;
94caa966 2578
f7d69005
AM
2579 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2580 p_flags1 |= PF_W;
2581 if ((m->sections[j]->flags & SEC_CODE) != 0)
2582 {
2583 p_flags1 |= PF_X;
2584 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2585 p_flags1 |= PF_PPC_VLE;
2586 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2587 break;
2588 }
2589 p_flags |= p_flags1;
2590 }
2591 /* If we're splitting a segment which originally contained rw
2592 sections then those sections might now only be in one of the
2593 two parts. So always set p_flags if splitting, even if we
2594 are being called for objcopy with p_flags_valid set. */
2595 if (j != m->count || !m->p_flags_valid)
2596 {
2597 m->p_flags_valid = 1;
2598 m->p_flags = p_flags;
2599 }
2600 if (j == m->count)
b9c361e0
JL
2601 continue;
2602
f7d69005 2603 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2604 the remainder are put in a new segment.
2605 The scan resumes with the new segment. */
2606
b9c361e0
JL
2607 amt = sizeof (struct elf_segment_map);
2608 amt += (m->count - j - 1) * sizeof (asection *);
2609 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2610 if (n == NULL)
954b63d4 2611 return FALSE;
b9c361e0
JL
2612
2613 n->p_type = PT_LOAD;
b9c361e0
JL
2614 n->count = m->count - j;
2615 for (k = 0; k < n->count; ++k)
f7d69005
AM
2616 n->sections[k] = m->sections[j + k];
2617 m->count = j;
2618 m->p_size_valid = 0;
b9c361e0
JL
2619 n->next = m->next;
2620 m->next = n;
b9c361e0
JL
2621 }
2622
2623 return TRUE;
2624}
2625
25dbc73a
AM
2626/* Add extra PPC sections -- Note, for now, make .sbss2 and
2627 .PPC.EMB.sbss0 a normal section, and not a bss section so
2628 that the linker doesn't crater when trying to make more than
2629 2 sections. */
e656e369 2630
b35d266b 2631static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2632{
14b57c7c
AM
2633 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2634 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2635 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2636 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2637 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2638 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2639 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2640 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2641 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2642 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2643};
2644
551b43fd
AM
2645/* This is what we want for new plt/got. */
2646static struct bfd_elf_special_section ppc_alt_plt =
07d6d2b8 2647 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2648
2649static const struct bfd_elf_special_section *
4aef7643 2650ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
7f4d3958 2651{
b35d266b 2652 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2653
2654 /* See if this is one of the special sections. */
2655 if (sec->name == NULL)
2656 return NULL;
2657
2658 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2659 sec->use_rela_p);
2660 if (ssect != NULL)
2661 {
2662 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2663 ssect = &ppc_alt_plt;
2664 return ssect;
2665 }
2666
2667 return _bfd_elf_get_sec_type_attr (abfd, sec);
2668}
25dbc73a
AM
2669\f
2670/* Very simple linked list structure for recording apuinfo values. */
2671typedef struct apuinfo_list
2672{
2673 struct apuinfo_list *next;
2674 unsigned long value;
2675}
2676apuinfo_list;
e656e369 2677
25dbc73a 2678static apuinfo_list *head;
f2faa800 2679static bfd_boolean apuinfo_set;
deaaf2f3 2680
25dbc73a
AM
2681static void
2682apuinfo_list_init (void)
2683{
2684 head = NULL;
f2faa800 2685 apuinfo_set = FALSE;
25dbc73a 2686}
9abc968f 2687
25dbc73a
AM
2688static void
2689apuinfo_list_add (unsigned long value)
2690{
2691 apuinfo_list *entry = head;
deaaf2f3 2692
25dbc73a
AM
2693 while (entry != NULL)
2694 {
2695 if (entry->value == value)
2696 return;
2697 entry = entry->next;
2698 }
b4a38de6 2699
25dbc73a
AM
2700 entry = bfd_malloc (sizeof (* entry));
2701 if (entry == NULL)
2702 return;
e656e369 2703
25dbc73a
AM
2704 entry->value = value;
2705 entry->next = head;
2706 head = entry;
2707}
9abc968f 2708
25dbc73a
AM
2709static unsigned
2710apuinfo_list_length (void)
2711{
2712 apuinfo_list *entry;
2713 unsigned long count;
9abc968f 2714
25dbc73a
AM
2715 for (entry = head, count = 0;
2716 entry;
2717 entry = entry->next)
2718 ++ count;
e656e369 2719
25dbc73a
AM
2720 return count;
2721}
eea6121a 2722
25dbc73a
AM
2723static inline unsigned long
2724apuinfo_list_element (unsigned long number)
2725{
2726 apuinfo_list * entry;
e656e369 2727
25dbc73a
AM
2728 for (entry = head;
2729 entry && number --;
2730 entry = entry->next)
2731 ;
252b5132 2732
25dbc73a
AM
2733 return entry ? entry->value : 0;
2734}
2735
2736static void
2737apuinfo_list_finish (void)
2738{
2739 apuinfo_list *entry;
2740
2741 for (entry = head; entry;)
252b5132 2742 {
25dbc73a
AM
2743 apuinfo_list *next = entry->next;
2744 free (entry);
2745 entry = next;
2746 }
9abc968f 2747
25dbc73a
AM
2748 head = NULL;
2749}
9abc968f 2750
25dbc73a
AM
2751/* Scan the input BFDs and create a linked list of
2752 the APUinfo values that will need to be emitted. */
9abc968f 2753
25dbc73a
AM
2754static void
2755ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2756{
2757 bfd *ibfd;
2758 asection *asec;
deddc40b
NS
2759 char *buffer = NULL;
2760 bfd_size_type largest_input_size = 0;
25dbc73a 2761 unsigned i;
25dbc73a
AM
2762 unsigned long length;
2763 const char *error_message = NULL;
9abc968f 2764
25dbc73a
AM
2765 if (link_info == NULL)
2766 return;
9abc968f 2767
25dbc73a 2768 apuinfo_list_init ();
252b5132 2769
25dbc73a 2770 /* Read in the input sections contents. */
c72f2fb2 2771 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2772 {
25dbc73a 2773 unsigned long datum;
252b5132 2774
25dbc73a
AM
2775 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2776 if (asec == NULL)
2777 continue;
252b5132 2778
695344c0 2779 /* xgettext:c-format */
871b3ab2 2780 error_message = _("corrupt %s section in %pB");
25dbc73a 2781 length = asec->size;
deddc40b
NS
2782 if (length < 20)
2783 goto fail;
2784
f2faa800 2785 apuinfo_set = TRUE;
deddc40b 2786 if (largest_input_size < asec->size)
25dbc73a 2787 {
deddc40b
NS
2788 if (buffer)
2789 free (buffer);
2790 largest_input_size = asec->size;
2791 buffer = bfd_malloc (largest_input_size);
2792 if (!buffer)
2793 return;
25dbc73a 2794 }
5b914448 2795
25dbc73a 2796 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2797 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2798 {
695344c0 2799 /* xgettext:c-format */
871b3ab2 2800 error_message = _("unable to read in %s section from %pB");
25dbc73a
AM
2801 goto fail;
2802 }
252b5132 2803
25dbc73a
AM
2804 /* Verify the contents of the header. Note - we have to
2805 extract the values this way in order to allow for a
2806 host whose endian-ness is different from the target. */
deddc40b 2807 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2808 if (datum != sizeof APUINFO_LABEL)
2809 goto fail;
252b5132 2810
deddc40b 2811 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2812 if (datum != 0x2)
2813 goto fail;
252b5132 2814
deddc40b 2815 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2816 goto fail;
252b5132 2817
25dbc73a 2818 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2819 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2820 if (datum + 20 != length)
2821 goto fail;
2822
25dbc73a
AM
2823 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2824 for (i = 0; i < datum; i += 4)
deddc40b 2825 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2826 }
2827
25dbc73a 2828 error_message = NULL;
252b5132 2829
f2faa800 2830 if (apuinfo_set)
deddc40b 2831 {
f2faa800
NS
2832 /* Compute the size of the output section. */
2833 unsigned num_entries = apuinfo_list_length ();
5b914448 2834
deddc40b
NS
2835 /* Set the output section size, if it exists. */
2836 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2837
deddc40b
NS
2838 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2839 {
2840 ibfd = abfd;
695344c0 2841 /* xgettext:c-format */
871b3ab2 2842 error_message = _("warning: unable to set size of %s section in %pB");
deddc40b
NS
2843 }
2844 }
25dbc73a
AM
2845
2846 fail:
deddc40b
NS
2847 if (buffer)
2848 free (buffer);
25dbc73a
AM
2849
2850 if (error_message)
cd9af601 2851 _bfd_error_handler (error_message, APUINFO_SECTION_NAME, ibfd);
25dbc73a 2852}
252b5132 2853
25dbc73a
AM
2854/* Prevent the output section from accumulating the input sections'
2855 contents. We have already stored this in our linked list structure. */
252b5132 2856
25dbc73a
AM
2857static bfd_boolean
2858ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2859 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2860 asection *asec,
2861 bfd_byte *contents ATTRIBUTE_UNUSED)
2862{
f2faa800 2863 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2864}
2865
25dbc73a
AM
2866/* Finally we can generate the output section. */
2867
2868static void
2869ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2870{
25dbc73a
AM
2871 bfd_byte *buffer;
2872 asection *asec;
2873 unsigned i;
2874 unsigned num_entries;
2875 bfd_size_type length;
7619e7c7 2876
25dbc73a
AM
2877 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2878 if (asec == NULL)
2879 return;
2880
f2faa800 2881 if (!apuinfo_set)
25dbc73a
AM
2882 return;
2883
2884 length = asec->size;
2885 if (length < 20)
2886 return;
2887
2888 buffer = bfd_malloc (length);
2889 if (buffer == NULL)
7619e7c7 2890 {
4eca0228 2891 _bfd_error_handler
cf97bcb0 2892 (_("failed to allocate space for new APUinfo section"));
25dbc73a 2893 return;
7619e7c7 2894 }
7619e7c7 2895
25dbc73a
AM
2896 /* Create the apuinfo header. */
2897 num_entries = apuinfo_list_length ();
2898 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2899 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2900 bfd_put_32 (abfd, 0x2, buffer + 8);
2901 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2902
25dbc73a
AM
2903 length = 20;
2904 for (i = 0; i < num_entries; i++)
feee612b 2905 {
25dbc73a
AM
2906 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2907 length += 4;
feee612b 2908 }
feee612b 2909
25dbc73a 2910 if (length != asec->size)
cf97bcb0 2911 _bfd_error_handler (_("failed to compute new APUinfo section"));
252b5132 2912
25dbc73a 2913 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
cf97bcb0 2914 _bfd_error_handler (_("failed to install new APUinfo section"));
252b5132 2915
25dbc73a
AM
2916 free (buffer);
2917
2918 apuinfo_list_finish ();
252b5132 2919}
25dbc73a 2920\f
7382d32a 2921static bfd_boolean
c6dd29ce 2922is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2923{
407aa07c 2924 bfd_byte buf[4 * 4];
7382d32a 2925
9e390558 2926 if (!bfd_get_section_contents (abfd, glink, buf, off, sizeof buf))
7382d32a
AM
2927 return FALSE;
2928
c6dd29ce
AM
2929 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2930 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
407aa07c
AM
2931 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2932 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2933}
2934
468392fb
AM
2935static bfd_boolean
2936section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2937{
2938 bfd_vma vma = *(bfd_vma *) ptr;
2939 return ((section->flags & SEC_ALLOC) != 0
2940 && section->vma <= vma
2941 && vma < section->vma + section->size);
2942}
2943
2944static long
2945ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2946 long dynsymcount, asymbol **dynsyms,
2947 asymbol **ret)
2948{
2949 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2950 asection *plt, *relplt, *dynamic, *glink;
2951 bfd_vma glink_vma = 0;
2952 bfd_vma resolv_vma = 0;
9e390558 2953 bfd_vma stub_off;
468392fb
AM
2954 asymbol *s;
2955 arelent *p;
9e390558 2956 long count, i, stub_delta;
468392fb
AM
2957 size_t size;
2958 char *names;
2959 bfd_byte buf[4];
2960
2961 *ret = NULL;
2962
2963 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2964 return 0;
2965
2966 if (dynsymcount <= 0)
2967 return 0;
2968
2969 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2970 if (relplt == NULL)
2971 return 0;
2972
2973 plt = bfd_get_section_by_name (abfd, ".plt");
2974 if (plt == NULL)
2975 return 0;
2976
2977 /* Call common code to handle old-style executable PLTs. */
2978 if (elf_section_flags (plt) & SHF_EXECINSTR)
2979 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2980 dynsymcount, dynsyms, ret);
2981
2982 /* If this object was prelinked, the prelinker stored the address
2983 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2984 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2985 if (dynamic != NULL)
2986 {
2987 bfd_byte *dynbuf, *extdyn, *extdynend;
2988 size_t extdynsize;
2989 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2990
2991 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2992 return -1;
2993
2994 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2995 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2996
2997 extdyn = dynbuf;
2998 extdynend = extdyn + dynamic->size;
2999 for (; extdyn < extdynend; extdyn += extdynsize)
3000 {
3001 Elf_Internal_Dyn dyn;
3002 (*swap_dyn_in) (abfd, extdyn, &dyn);
3003
3004 if (dyn.d_tag == DT_NULL)
3005 break;
3006
3007 if (dyn.d_tag == DT_PPC_GOT)
3008 {
3009 unsigned int g_o_t = dyn.d_un.d_val;
3010 asection *got = bfd_get_section_by_name (abfd, ".got");
3011 if (got != NULL
3012 && bfd_get_section_contents (abfd, got, buf,
3013 g_o_t - got->vma + 4, 4))
3014 glink_vma = bfd_get_32 (abfd, buf);
3015 break;
3016 }
3017 }
3018 free (dynbuf);
3019 }
3020
3021 /* Otherwise we read the first plt entry. */
3022 if (glink_vma == 0)
3023 {
3024 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
3025 glink_vma = bfd_get_32 (abfd, buf);
3026 }
3027
3028 if (glink_vma == 0)
3029 return 0;
3030
3031 /* The .glink section usually does not survive the final
3032 link; search for the section (usually .text) where the
3033 glink stubs now reside. */
3034 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
3035 if (glink == NULL)
3036 return 0;
3037
3038 /* Determine glink PLT resolver by reading the relative branch
3039 from the first glink stub. */
3040 if (bfd_get_section_contents (abfd, glink, buf,
3041 glink_vma - glink->vma, 4))
3042 {
3043 unsigned int insn = bfd_get_32 (abfd, buf);
3044
3045 /* The first glink stub may either branch to the resolver ... */
3046 insn ^= B;
3047 if ((insn & ~0x3fffffc) == 0)
3048 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3049
3050 /* ... or fall through a bunch of NOPs. */
3051 else if ((insn ^ B ^ NOP) == 0)
3052 for (i = 4;
3053 bfd_get_section_contents (abfd, glink, buf,
3054 glink_vma - glink->vma + i, 4);
3055 i += 4)
3056 if (bfd_get_32 (abfd, buf) != NOP)
3057 {
3058 resolv_vma = glink_vma + i;
3059 break;
3060 }
3061 }
3062
7382d32a 3063 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3064 /* If the stubs are those for -shared/-pie then we might have
3065 multiple stubs for each plt entry. If that is the case then
3066 there is no way to associate stubs with their plt entries short
9e390558
AM
3067 of figuring out the GOT pointer value used in the stub.
3068 The offsets tested here need to cover all possible values of
3069 GLINK_ENTRY_SIZE for other than __tls_get_addr_opt. */
3070 stub_off = glink_vma - glink->vma;
3071 for (stub_delta = 16; stub_delta <= 32; stub_delta += 8)
3072 if (is_nonpic_glink_stub (abfd, glink, stub_off - stub_delta))
3073 break;
3074 if (stub_delta > 32)
7382d32a
AM
3075 return 0;
3076
468392fb
AM
3077 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3078 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3079 return -1;
3080
468392fb
AM
3081 size = count * sizeof (asymbol);
3082 p = relplt->relocation;
3083 for (i = 0; i < count; i++, p++)
e054468f
AM
3084 {
3085 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3086 if (p->addend != 0)
3087 size += sizeof ("+0x") - 1 + 8;
3088 }
468392fb
AM
3089
3090 size += sizeof (asymbol) + sizeof ("__glink");
3091
3092 if (resolv_vma)
3093 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3094
3095 s = *ret = bfd_malloc (size);
3096 if (s == NULL)
3097 return -1;
3098
9e390558 3099 stub_off = glink_vma - glink->vma;
468392fb 3100 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3101 p = relplt->relocation + count - 1;
3102 for (i = 0; i < count; i++)
468392fb
AM
3103 {
3104 size_t len;
3105
9e390558
AM
3106 stub_off -= stub_delta;
3107 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3108 stub_off -= 32;
468392fb
AM
3109 *s = **p->sym_ptr_ptr;
3110 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3111 we are defining a symbol, ensure one of them is set. */
3112 if ((s->flags & BSF_LOCAL) == 0)
3113 s->flags |= BSF_GLOBAL;
6ba2a415 3114 s->flags |= BSF_SYNTHETIC;
468392fb 3115 s->section = glink;
9e390558 3116 s->value = stub_off;
468392fb
AM
3117 s->name = names;
3118 s->udata.p = NULL;
3119 len = strlen ((*p->sym_ptr_ptr)->name);
3120 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3121 names += len;
e054468f
AM
3122 if (p->addend != 0)
3123 {
3124 memcpy (names, "+0x", sizeof ("+0x") - 1);
3125 names += sizeof ("+0x") - 1;
3126 bfd_sprintf_vma (abfd, names, p->addend);
3127 names += strlen (names);
3128 }
468392fb
AM
3129 memcpy (names, "@plt", sizeof ("@plt"));
3130 names += sizeof ("@plt");
3131 ++s;
1079403c 3132 --p;
468392fb
AM
3133 }
3134
3135 /* Add a symbol at the start of the glink branch table. */
86a4952b 3136 memset (s, 0, sizeof *s);
468392fb 3137 s->the_bfd = abfd;
6ba2a415 3138 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3139 s->section = glink;
3140 s->value = glink_vma - glink->vma;
3141 s->name = names;
3142 memcpy (names, "__glink", sizeof ("__glink"));
3143 names += sizeof ("__glink");
3144 s++;
3145 count++;
3146
3147 if (resolv_vma)
3148 {
3149 /* Add a symbol for the glink PLT resolver. */
86a4952b 3150 memset (s, 0, sizeof *s);
468392fb 3151 s->the_bfd = abfd;
6ba2a415 3152 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3153 s->section = glink;
3154 s->value = resolv_vma - glink->vma;
3155 s->name = names;
3156 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3157 names += sizeof ("__glink_PLTresolve");
3158 s++;
3159 count++;
3160 }
3161
3162 return count;
3163}
3164\f
25dbc73a
AM
3165/* The following functions are specific to the ELF linker, while
3166 functions above are used generally. They appear in this file more
3167 or less in the order in which they are called. eg.
3168 ppc_elf_check_relocs is called early in the link process,
3169 ppc_elf_finish_dynamic_sections is one of the last functions
3170 called. */
252b5132 3171
a6aa5195 3172/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3173 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3174struct plt_entry
3175{
3176 struct plt_entry *next;
3177
3178 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3179 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3180 GOT pointer reg. It will always be at least 32768. (Current
3181 gcc always uses an offset of 32768, but ld -r will pack .got2
3182 sections together resulting in larger offsets). */
a6aa5195
AM
3183 bfd_vma addend;
3184
3185 /* The .got2 section. */
3186 asection *sec;
3187
3188 /* PLT refcount or offset. */
3189 union
3190 {
3191 bfd_signed_vma refcount;
3192 bfd_vma offset;
3193 } plt;
3194
3195 /* .glink stub offset. */
3196 bfd_vma glink_offset;
3197};
3198
7c8bbca5
AM
3199/* Of those relocs that might be copied as dynamic relocs, this
3200 function selects those that must be copied when linking a shared
3201 library or PIE, even when the symbol is local. */
252b5132 3202
1d483afe
AM
3203static int
3204must_be_dyn_reloc (struct bfd_link_info *info,
3205 enum elf_ppc_reloc_type r_type)
3206{
3207 switch (r_type)
3208 {
3209 default:
7c8bbca5
AM
3210 /* Only relative relocs can be resolved when the object load
3211 address isn't fixed. DTPREL32 is excluded because the
3212 dynamic linker needs to differentiate global dynamic from
3213 local dynamic __tls_index pairs when PPC_OPT_TLS is set. */
1d483afe
AM
3214 return 1;
3215
3216 case R_PPC_REL24:
3217 case R_PPC_REL14:
3218 case R_PPC_REL14_BRTAKEN:
3219 case R_PPC_REL14_BRNTAKEN:
3220 case R_PPC_REL32:
3221 return 0;
3222
3223 case R_PPC_TPREL32:
3224 case R_PPC_TPREL16:
3225 case R_PPC_TPREL16_LO:
3226 case R_PPC_TPREL16_HI:
3227 case R_PPC_TPREL16_HA:
7c8bbca5
AM
3228 /* These relocations are relative but in a shared library the
3229 linker doesn't know the thread pointer base. */
3230 return bfd_link_dll (info);
1d483afe
AM
3231 }
3232}
252b5132 3233
25dbc73a
AM
3234/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3235 copying dynamic variables from a shared lib into an app's dynbss
3236 section, and instead use a dynamic relocation to point into the
3237 shared lib. */
3238#define ELIMINATE_COPY_RELOCS 1
252b5132 3239
f95f8542
AM
3240/* Used to track dynamic relocations for local symbols. */
3241struct ppc_dyn_relocs
3242{
3243 struct ppc_dyn_relocs *next;
3244
3245 /* The input section of the reloc. */
3246 asection *sec;
3247
3248 /* Total number of relocs copied for the input section. */
3249 unsigned int count : 31;
3250
3251 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3252 unsigned int ifunc : 1;
3253};
3254
25dbc73a 3255/* PPC ELF linker hash entry. */
252b5132 3256
25dbc73a
AM
3257struct ppc_elf_link_hash_entry
3258{
3259 struct elf_link_hash_entry elf;
252b5132 3260
25dbc73a
AM
3261 /* If this symbol is used in the linker created sections, the processor
3262 specific backend uses this field to map the field into the offset
3263 from the beginning of the section. */
3264 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3265
25dbc73a 3266 /* Track dynamic relocs copied for this symbol. */
6061a67d 3267 struct elf_dyn_relocs *dyn_relocs;
252b5132 3268
37da22e5
AM
3269 /* Contexts in which symbol is used in the GOT.
3270 Bits are or'd into the mask as the corresponding relocs are
3271 encountered during check_relocs, with TLS_TLS being set when any
3272 of the other TLS bits are set. tls_optimize clears bits when
3273 optimizing to indicate the corresponding GOT entry type is not
3274 needed. If set, TLS_TLS is never cleared. tls_optimize may also
3275 set TLS_TPRELGD when a GD reloc turns into a TPREL one. We use a
3276 separate flag rather than setting TPREL just for convenience in
3277 distinguishing the two cases.
3278 These flags are also kept for local symbols. */
3279#define TLS_TLS 1 /* Any TLS reloc. */
3280#define TLS_GD 2 /* GD reloc. */
3281#define TLS_LD 4 /* LD reloc. */
3282#define TLS_TPREL 8 /* TPREL reloc, => IE. */
3283#define TLS_DTPREL 16 /* DTPREL reloc, => LD. */
3284#define TLS_MARK 32 /* __tls_get_addr call marked. */
3285#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
bac3c8c5 3286 unsigned char tls_mask;
4dc4a9a5 3287
37da22e5
AM
3288 /* The above field is also used to mark function symbols. In which
3289 case TLS_TLS will be 0. */
3290#define PLT_IFUNC 2 /* STT_GNU_IFUNC. */
2d7ad24e 3291#define PLT_KEEP 4 /* inline plt call requires plt entry. */
37da22e5
AM
3292#define NON_GOT 256 /* local symbol plt, not stored. */
3293
4dc4a9a5
DJ
3294 /* Nonzero if we have seen a small data relocation referring to this
3295 symbol. */
d3e454b9
AM
3296 unsigned char has_sda_refs : 1;
3297
3298 /* Flag use of given relocations. */
3299 unsigned char has_addr16_ha : 1;
3300 unsigned char has_addr16_lo : 1;
25dbc73a 3301};
252b5132 3302
25dbc73a
AM
3303#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3304
3305/* PPC ELF linker hash table. */
3306
3307struct ppc_elf_link_hash_table
3308{
3309 struct elf_link_hash_table elf;
3310
5446cbdf
AM
3311 /* Various options passed from the linker. */
3312 struct ppc_elf_params *params;
3313
25dbc73a 3314 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3315 asection *glink;
25dbc73a
AM
3316 asection *dynsbss;
3317 asection *relsbss;
c9a2f333 3318 elf_linker_section_t sdata[2];
25dbc73a 3319 asection *sbss;
6177242a 3320 asection *glink_eh_frame;
2d7ad24e
AM
3321 asection *pltlocal;
3322 asection *relpltlocal;
25dbc73a 3323
016687f8
AM
3324 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3325 asection *srelplt2;
3326
1d483afe 3327 /* Shortcut to __tls_get_addr. */
25dbc73a 3328 struct elf_link_hash_entry *tls_get_addr;
252b5132 3329
016687f8
AM
3330 /* The bfd that forced an old-style PLT. */
3331 bfd *old_bfd;
5b914448 3332
25dbc73a
AM
3333 /* TLS local dynamic got entry handling. */
3334 union {
3335 bfd_signed_vma refcount;
3336 bfd_vma offset;
3337 } tlsld_got;
252b5132 3338
c6dd29ce 3339 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3340 bfd_vma glink_pltresolve;
3341
3b36f7e6
AM
3342 /* Size of reserved GOT entries. */
3343 unsigned int got_header_size;
3344 /* Non-zero if allocating the header left a gap. */
3345 unsigned int got_gap;
3346
4a3dc543
RS
3347 /* The type of PLT we have chosen to use. */
3348 enum ppc_elf_plt_type plt_type;
3349
9d8504b1 3350 /* True if the target system is VxWorks. */
016687f8 3351 unsigned int is_vxworks:1;
9d8504b1 3352
82e66161
AM
3353 /* Whether there exist local gnu indirect function resolvers,
3354 referenced by dynamic relocations. */
3355 unsigned int local_ifunc_resolver:1;
3356 unsigned int maybe_local_ifunc_resolver:1;
3357
9a23f96e
AM
3358 /* Set if tls optimization is enabled. */
3359 unsigned int do_tls_opt:1;
3360
3e04d765
AM
3361 /* Set if inline plt calls should be converted to direct calls. */
3362 unsigned int can_convert_all_inline_plt:1;
3363
9d8504b1
PB
3364 /* The size of PLT entries. */
3365 int plt_entry_size;
3366 /* The distance between adjacent PLT slots. */
3367 int plt_slot_size;
3368 /* The size of the first PLT entry. */
3369 int plt_initial_entry_size;
016687f8 3370
87d72d41
AM
3371 /* Small local sym cache. */
3372 struct sym_cache sym_cache;
25dbc73a 3373};
252b5132 3374
94caa966
AM
3375/* Rename some of the generic section flags to better document how they
3376 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3377
3378/* Nonzero if this section has TLS related relocations. */
3379#define has_tls_reloc sec_flg0
3380
3381/* Nonzero if this section has a call to __tls_get_addr. */
3382#define has_tls_get_addr_call sec_flg1
3383
3e04d765
AM
3384 /* Flag set when PLTCALL relocs are detected. */
3385#define has_pltcall sec_flg2
3386
25dbc73a 3387/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3388
25dbc73a 3389#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3390 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3391 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3392
25dbc73a 3393/* Create an entry in a PPC ELF linker hash table. */
252b5132 3394
25dbc73a
AM
3395static struct bfd_hash_entry *
3396ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3397 struct bfd_hash_table *table,
3398 const char *string)
252b5132 3399{
25dbc73a
AM
3400 /* Allocate the structure if it has not already been allocated by a
3401 subclass. */
3402 if (entry == NULL)
3403 {
3404 entry = bfd_hash_allocate (table,
3405 sizeof (struct ppc_elf_link_hash_entry));
3406 if (entry == NULL)
3407 return entry;
3408 }
252b5132 3409
25dbc73a
AM
3410 /* Call the allocation method of the superclass. */
3411 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3412 if (entry != NULL)
3413 {
3414 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3415 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3416 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3417 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3418 }
252b5132 3419
25dbc73a 3420 return entry;
252b5132 3421}
3dab13f6 3422
25dbc73a 3423/* Create a PPC ELF linker hash table. */
3dab13f6 3424
25dbc73a
AM
3425static struct bfd_link_hash_table *
3426ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3427{
25dbc73a 3428 struct ppc_elf_link_hash_table *ret;
76e7a751 3429 static struct ppc_elf_params default_params
407aa07c 3430 = { PLT_OLD, 0, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3431
25dbc73a
AM
3432 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3433 if (ret == NULL)
3434 return NULL;
3dab13f6 3435
66eb6687
AM
3436 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3437 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3438 sizeof (struct ppc_elf_link_hash_entry),
3439 PPC32_ELF_DATA))
3dab13f6 3440 {
25dbc73a
AM
3441 free (ret);
3442 return NULL;
3443 }
58111eb7 3444
a6aa5195
AM
3445 ret->elf.init_plt_refcount.refcount = 0;
3446 ret->elf.init_plt_refcount.glist = NULL;
3447 ret->elf.init_plt_offset.offset = 0;
3448 ret->elf.init_plt_offset.glist = NULL;
3449
db434ba0
AM
3450 ret->params = &default_params;
3451
c9a2f333
AM
3452 ret->sdata[0].name = ".sdata";
3453 ret->sdata[0].sym_name = "_SDA_BASE_";
3454 ret->sdata[0].bss_name = ".sbss";
3455
3456 ret->sdata[1].name = ".sdata2";
3457 ret->sdata[1].sym_name = "_SDA2_BASE_";
3458 ret->sdata[1].bss_name = ".sbss2";
3459
9d8504b1
PB
3460 ret->plt_entry_size = 12;
3461 ret->plt_slot_size = 8;
3462 ret->plt_initial_entry_size = 72;
9d8504b1 3463
25dbc73a
AM
3464 return &ret->elf.root;
3465}
3dab13f6 3466
5446cbdf
AM
3467/* Hook linker params into hash table. */
3468
3469void
3470ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3471{
3472 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3473
3474 if (htab)
3475 htab->params = params;
76e7a751 3476 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3477}
3478
9d8504b1 3479/* Create .got and the related sections. */
3dab13f6 3480
25dbc73a
AM
3481static bfd_boolean
3482ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3483{
3484 struct ppc_elf_link_hash_table *htab;
3dab13f6 3485
25dbc73a
AM
3486 if (!_bfd_elf_create_got_section (abfd, info))
3487 return FALSE;
3dab13f6 3488
25dbc73a 3489 htab = ppc_elf_hash_table (info);
ce558b89 3490 if (!htab->is_vxworks)
9d8504b1
PB
3491 {
3492 /* The powerpc .got has a blrl instruction in it. Mark it
3493 executable. */
ce558b89
AM
3494 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3495 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3496 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3497 return FALSE;
3498 }
3dab13f6 3499
25dbc73a
AM
3500 return TRUE;
3501}
3dab13f6 3502
93d1b056
AM
3503/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3504 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3505 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3506
3507static bfd_boolean
3508ppc_elf_create_linker_section (bfd *abfd,
3509 struct bfd_link_info *info,
3510 flagword flags,
3511 elf_linker_section_t *lsect)
3512{
3513 asection *s;
3514
3515 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3516 | SEC_LINKER_CREATED);
3517
3518 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3519 if (s == NULL)
3520 return FALSE;
3521 lsect->section = s;
3522
3523 /* Define the sym on the first section of this name. */
3524 s = bfd_get_section_by_name (abfd, lsect->name);
3525
3526 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3527 if (lsect->sym == NULL)
3528 return FALSE;
3529 lsect->sym->root.u.def.value = 0x8000;
3530 return TRUE;
3531}
3532
e054468f
AM
3533static bfd_boolean
3534ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3535{
3536 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3537 asection *s;
3538 flagword flags;
691d2e9a 3539 int p2align;
e054468f
AM
3540
3541 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3542 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3543 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3544 htab->glink = s;
691d2e9a
AM
3545 p2align = htab->params->ppc476_workaround ? 6 : 4;
3546 if (p2align < htab->params->plt_stub_align)
3547 p2align = htab->params->plt_stub_align;
e054468f 3548 if (s == NULL
691d2e9a 3549 || !bfd_set_section_alignment (abfd, s, p2align))
e054468f
AM
3550 return FALSE;
3551
6177242a
AM
3552 if (!info->no_ld_generated_unwind_info)
3553 {
3554 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3555 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3556 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3557 htab->glink_eh_frame = s;
3558 if (s == NULL
3559 || !bfd_set_section_alignment (abfd, s, 2))
3560 return FALSE;
3561 }
3562
e054468f
AM
3563 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3564 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3565 htab->elf.iplt = s;
e054468f
AM
3566 if (s == NULL
3567 || !bfd_set_section_alignment (abfd, s, 4))
3568 return FALSE;
3569
3570 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3571 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3572 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3573 htab->elf.irelplt = s;
e054468f
AM
3574 if (s == NULL
3575 || ! bfd_set_section_alignment (abfd, s, 2))
3576 return FALSE;
93d1b056 3577
2d7ad24e
AM
3578 /* Local plt entries. */
3579 flags = (SEC_ALLOC | SEC_LOAD
3580 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3581 htab->pltlocal = bfd_make_section_anyway_with_flags (abfd, ".branch_lt",
3582 flags);
3583 if (htab->pltlocal == NULL
3584 || ! bfd_set_section_alignment (abfd, htab->pltlocal, 2))
3585 return FALSE;
3586
3587 if (bfd_link_pic (info))
3588 {
3589 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3590 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3591 htab->relpltlocal
3592 = bfd_make_section_anyway_with_flags (abfd, ".rela.branch_lt", flags);
3593 if (htab->relpltlocal == NULL
3594 || ! bfd_set_section_alignment (abfd, htab->relpltlocal, 2))
3595 return FALSE;
3596 }
3597
93d1b056
AM
3598 if (!ppc_elf_create_linker_section (abfd, info, 0,
3599 &htab->sdata[0]))
3600 return FALSE;
3601
3602 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3603 &htab->sdata[1]))
3604 return FALSE;
3605
e054468f
AM
3606 return TRUE;
3607}
3608
25dbc73a
AM
3609/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3610 to output sections (just like _bfd_elf_create_dynamic_sections has
3611 to create .dynbss and .rela.bss). */
3dab13f6 3612
25dbc73a
AM
3613static bfd_boolean
3614ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3615{
3616 struct ppc_elf_link_hash_table *htab;
3617 asection *s;
3618 flagword flags;
3dab13f6 3619
25dbc73a 3620 htab = ppc_elf_hash_table (info);
3dab13f6 3621
ce558b89 3622 if (htab->elf.sgot == NULL
25dbc73a 3623 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3624 return FALSE;
3625
25dbc73a
AM
3626 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3627 return FALSE;
3dab13f6 3628
e054468f
AM
3629 if (htab->glink == NULL
3630 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3631 return FALSE;
3dab13f6 3632
14b2f831
AM
3633 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3634 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3635 htab->dynsbss = s;
3496cb2a 3636 if (s == NULL)
25dbc73a 3637 return FALSE;
3dab13f6 3638
0e1862bb 3639 if (! bfd_link_pic (info))
25dbc73a 3640 {
e054468f
AM
3641 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3642 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3643 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3644 htab->relsbss = s;
25dbc73a 3645 if (s == NULL
25dbc73a
AM
3646 || ! bfd_set_section_alignment (abfd, s, 2))
3647 return FALSE;
3648 }
3dab13f6 3649
711de32c
RS
3650 if (htab->is_vxworks
3651 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3652 return FALSE;
9d8504b1 3653
ce558b89 3654 s = htab->elf.splt;
3b36f7e6 3655 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3656 if (htab->plt_type == PLT_VXWORKS)
3657 /* The VxWorks PLT is a loaded section with contents. */
3658 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3659 return bfd_set_section_flags (abfd, s, flags);
3660}
3dab13f6 3661
25dbc73a 3662/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3663
25dbc73a 3664static void
fcfa13d2 3665ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3666 struct elf_link_hash_entry *dir,
3667 struct elf_link_hash_entry *ind)
3668{
3669 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3670
25dbc73a
AM
3671 edir = (struct ppc_elf_link_hash_entry *) dir;
3672 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3673
c79d6685
AM
3674 edir->tls_mask |= eind->tls_mask;
3675 edir->has_sda_refs |= eind->has_sda_refs;
3676
e81830c5
AM
3677 if (edir->elf.versioned != versioned_hidden)
3678 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3679 edir->elf.ref_regular |= eind->elf.ref_regular;
3680 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4a7e5234 3681 edir->elf.non_got_ref |= eind->elf.non_got_ref;
c79d6685
AM
3682 edir->elf.needs_plt |= eind->elf.needs_plt;
3683 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3684
287c7eaf
AM
3685 /* If we were called to copy over info for a weak sym, that's all. */
3686 if (eind->elf.root.type != bfd_link_hash_indirect)
3687 return;
3688
25dbc73a
AM
3689 if (eind->dyn_relocs != NULL)
3690 {
3691 if (edir->dyn_relocs != NULL)
3dab13f6 3692 {
6061a67d
AM
3693 struct elf_dyn_relocs **pp;
3694 struct elf_dyn_relocs *p;
3dab13f6 3695
fcfa13d2 3696 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3697 list. Merge any entries against the same section. */
3698 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3699 {
6061a67d 3700 struct elf_dyn_relocs *q;
25dbc73a
AM
3701
3702 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3703 if (q->sec == p->sec)
3704 {
3705 q->pc_count += p->pc_count;
3706 q->count += p->count;
3707 *pp = p->next;
3708 break;
3709 }
3710 if (q == NULL)
3711 pp = &p->next;
3dab13f6 3712 }
25dbc73a 3713 *pp = edir->dyn_relocs;
3dab13f6 3714 }
25dbc73a
AM
3715
3716 edir->dyn_relocs = eind->dyn_relocs;
3717 eind->dyn_relocs = NULL;
3dab13f6 3718 }
3dab13f6 3719
a6aa5195
AM
3720 /* Copy over the GOT refcount entries that we may have already seen to
3721 the symbol which just became indirect. */
fcfa13d2
AM
3722 edir->elf.got.refcount += eind->elf.got.refcount;
3723 eind->elf.got.refcount = 0;
a6aa5195
AM
3724
3725 /* And plt entries. */
3726 if (eind->elf.plt.plist != NULL)
3727 {
3728 if (edir->elf.plt.plist != NULL)
3729 {
3730 struct plt_entry **entp;
3731 struct plt_entry *ent;
3732
3733 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3734 {
3735 struct plt_entry *dent;
3736
3737 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3738 if (dent->sec == ent->sec && dent->addend == ent->addend)
3739 {
3740 dent->plt.refcount += ent->plt.refcount;
3741 *entp = ent->next;
3742 break;
3743 }
3744 if (dent == NULL)
3745 entp = &ent->next;
3746 }
3747 *entp = edir->elf.plt.plist;
3748 }
3749
3750 edir->elf.plt.plist = eind->elf.plt.plist;
3751 eind->elf.plt.plist = NULL;
3752 }
3753
fcfa13d2 3754 if (eind->elf.dynindx != -1)
25dbc73a 3755 {
fcfa13d2
AM
3756 if (edir->elf.dynindx != -1)
3757 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3758 edir->elf.dynstr_index);
a6aa5195
AM
3759 edir->elf.dynindx = eind->elf.dynindx;
3760 edir->elf.dynstr_index = eind->elf.dynstr_index;
3761 eind->elf.dynindx = -1;
3762 eind->elf.dynstr_index = 0;
25dbc73a 3763 }
25dbc73a 3764}
3dab13f6 3765
25dbc73a
AM
3766/* Hook called by the linker routine which adds symbols from an object
3767 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3768
25dbc73a
AM
3769static bfd_boolean
3770ppc_elf_add_symbol_hook (bfd *abfd,
3771 struct bfd_link_info *info,
3772 Elf_Internal_Sym *sym,
3773 const char **namep ATTRIBUTE_UNUSED,
3774 flagword *flagsp ATTRIBUTE_UNUSED,
3775 asection **secp,
3776 bfd_vma *valp)
3777{
3778 if (sym->st_shndx == SHN_COMMON
0e1862bb 3779 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3780 && is_ppc_elf (info->output_bfd)
3781 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3782 {
3783 /* Common symbols less than or equal to -G nn bytes are automatically
3784 put into .sbss. */
3785 struct ppc_elf_link_hash_table *htab;
3dab13f6 3786
25dbc73a
AM
3787 htab = ppc_elf_hash_table (info);
3788 if (htab->sbss == NULL)
3789 {
644285ef 3790 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3791
644285ef
AM
3792 if (!htab->elf.dynobj)
3793 htab->elf.dynobj = abfd;
3794
3496cb2a
L
3795 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3796 ".sbss",
3797 flags);
3798 if (htab->sbss == NULL)
25dbc73a 3799 return FALSE;
3dab13f6 3800 }
3dab13f6 3801
25dbc73a
AM
3802 *secp = htab->sbss;
3803 *valp = sym->st_size;
3804 }
3dab13f6 3805
25dbc73a 3806 return TRUE;
3dab13f6
AM
3807}
3808\f
25dbc73a
AM
3809/* Find a linker generated pointer with a given addend and type. */
3810
3811static elf_linker_section_pointers_t *
3812elf_find_pointer_linker_section
3813 (elf_linker_section_pointers_t *linker_pointers,
3814 bfd_vma addend,
3815 elf_linker_section_t *lsect)
252b5132 3816{
25dbc73a
AM
3817 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3818 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3819 return linker_pointers;
252b5132 3820
25dbc73a
AM
3821 return NULL;
3822}
3823
3824/* Allocate a pointer to live in a linker created section. */
3825
3826static bfd_boolean
93d1b056
AM
3827elf_allocate_pointer_linker_section (bfd *abfd,
3828 elf_linker_section_t *lsect,
3829 struct elf_link_hash_entry *h,
3830 const Elf_Internal_Rela *rel)
25dbc73a
AM
3831{
3832 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3833 elf_linker_section_pointers_t *linker_section_ptr;
3834 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3835 bfd_size_type amt;
3836
3837 BFD_ASSERT (lsect != NULL);
3838
3839 /* Is this a global symbol? */
3840 if (h != NULL)
3841 {
3842 struct ppc_elf_link_hash_entry *eh;
3843
3844 /* Has this symbol already been allocated? If so, our work is done. */
3845 eh = (struct ppc_elf_link_hash_entry *) h;
3846 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3847 rel->r_addend,
3848 lsect))
3849 return TRUE;
3850
3851 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3852 }
3853 else
3854 {
0c8d6e5c 3855 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3856
25dbc73a
AM
3857 /* Allocation of a pointer to a local symbol. */
3858 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3859
3860 /* Allocate a table to hold the local symbols if first time. */
3861 if (!ptr)
3862 {
0ffa91dd 3863 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3864
3865 amt = num_symbols;
3866 amt *= sizeof (elf_linker_section_pointers_t *);
3867 ptr = bfd_zalloc (abfd, amt);
3868
3869 if (!ptr)
3870 return FALSE;
3871
3872 elf_local_ptr_offsets (abfd) = ptr;
3873 }
3874
3875 /* Has this symbol already been allocated? If so, our work is done. */
3876 if (elf_find_pointer_linker_section (ptr[r_symndx],
3877 rel->r_addend,
3878 lsect))
3879 return TRUE;
252b5132 3880
25dbc73a 3881 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3882 }
41fcb14e 3883
25dbc73a
AM
3884 /* Allocate space for a pointer in the linker section, and allocate
3885 a new pointer record from internal memory. */
3886 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3887 amt = sizeof (elf_linker_section_pointers_t);
3888 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3889
25dbc73a 3890 if (!linker_section_ptr)
7619e7c7 3891 return FALSE;
41fcb14e 3892
25dbc73a
AM
3893 linker_section_ptr->next = *ptr_linker_section_ptr;
3894 linker_section_ptr->addend = rel->r_addend;
3895 linker_section_ptr->lsect = lsect;
25dbc73a 3896 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3897
93d1b056
AM
3898 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3899 return FALSE;
25dbc73a
AM
3900 linker_section_ptr->offset = lsect->section->size;
3901 lsect->section->size += 4;
7619e7c7 3902
25dbc73a
AM
3903#ifdef DEBUG
3904 fprintf (stderr,
3905 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3906 lsect->name, (long) linker_section_ptr->offset,
3907 (long) lsect->section->size);
3908#endif
7619e7c7
AM
3909
3910 return TRUE;
41fcb14e
AM
3911}
3912
e054468f 3913static struct plt_entry **
25dbc73a
AM
3914update_local_sym_info (bfd *abfd,
3915 Elf_Internal_Shdr *symtab_hdr,
3916 unsigned long r_symndx,
3917 int tls_type)
252b5132 3918{
25dbc73a 3919 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3920 struct plt_entry **local_plt;
bac3c8c5 3921 unsigned char *local_got_tls_masks;
252b5132 3922
25dbc73a 3923 if (local_got_refcounts == NULL)
252b5132 3924 {
25dbc73a
AM
3925 bfd_size_type size = symtab_hdr->sh_info;
3926
e054468f
AM
3927 size *= (sizeof (*local_got_refcounts)
3928 + sizeof (*local_plt)
3929 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3930 local_got_refcounts = bfd_zalloc (abfd, size);
3931 if (local_got_refcounts == NULL)
e054468f 3932 return NULL;
25dbc73a 3933 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3934 }
41fcb14e 3935
e054468f 3936 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
bac3c8c5 3937 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
37da22e5
AM
3938 local_got_tls_masks[r_symndx] |= tls_type & 0xff;
3939 if ((tls_type & NON_GOT) == 0)
e054468f
AM
3940 local_got_refcounts[r_symndx] += 1;
3941 return local_plt + r_symndx;
25dbc73a 3942}
41fcb14e 3943
a6aa5195 3944static bfd_boolean
3ec01793 3945update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3946 asection *sec, bfd_vma addend)
3947{
3948 struct plt_entry *ent;
3949
32af9f6e
AM
3950 if (addend < 32768)
3951 sec = NULL;
3ec01793 3952 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3953 if (ent->sec == sec && ent->addend == addend)
3954 break;
3955 if (ent == NULL)
3956 {
3957 bfd_size_type amt = sizeof (*ent);
3958 ent = bfd_alloc (abfd, amt);
3959 if (ent == NULL)
3960 return FALSE;
3ec01793 3961 ent->next = *plist;
a6aa5195
AM
3962 ent->sec = sec;
3963 ent->addend = addend;
3964 ent->plt.refcount = 0;
3ec01793 3965 *plist = ent;
a6aa5195
AM
3966 }
3967 ent->plt.refcount += 1;
3968 return TRUE;
3969}
3970
3971static struct plt_entry *
3ec01793 3972find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3973{
3974 struct plt_entry *ent;
3975
3976 if (addend < 32768)
3977 sec = NULL;
3ec01793 3978 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3979 if (ent->sec == sec && ent->addend == addend)
3980 break;
3981 return ent;
3982}
3983
e054468f
AM
3984static bfd_boolean
3985is_branch_reloc (enum elf_ppc_reloc_type r_type)
3986{
3987 return (r_type == R_PPC_PLTREL24
3988 || r_type == R_PPC_LOCAL24PC
3989 || r_type == R_PPC_REL24
3990 || r_type == R_PPC_REL14
3991 || r_type == R_PPC_REL14_BRTAKEN
3992 || r_type == R_PPC_REL14_BRNTAKEN
3993 || r_type == R_PPC_ADDR24
3994 || r_type == R_PPC_ADDR14
3995 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3996 || r_type == R_PPC_ADDR14_BRNTAKEN
3997 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3998}
3999
23cedd1d
AM
4000/* Relocs on inline plt call sequence insns prior to the call. */
4001
4002static bfd_boolean
4003is_plt_seq_reloc (enum elf_ppc_reloc_type r_type)
4004{
4005 return (r_type == R_PPC_PLT16_HA
4006 || r_type == R_PPC_PLT16_HI
4007 || r_type == R_PPC_PLT16_LO
4008 || r_type == R_PPC_PLTSEQ);
4009}
4010
25dbc73a
AM
4011static void
4012bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
4013{
4eca0228 4014 _bfd_error_handler
695344c0 4015 /* xgettext:c-format */
871b3ab2 4016 (_("%pB: relocation %s cannot be used when making a shared object"),
25dbc73a
AM
4017 abfd,
4018 ppc_elf_howto_table[r_type]->name);
4019 bfd_set_error (bfd_error_bad_value);
252b5132
RH
4020}
4021
25dbc73a
AM
4022/* Look through the relocs for a section during the first phase, and
4023 allocate space in the global offset table or procedure linkage
4024 table. */
252b5132 4025
b34976b6 4026static bfd_boolean
25dbc73a
AM
4027ppc_elf_check_relocs (bfd *abfd,
4028 struct bfd_link_info *info,
4029 asection *sec,
4030 const Elf_Internal_Rela *relocs)
252b5132 4031{
7619e7c7 4032 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
4033 Elf_Internal_Shdr *symtab_hdr;
4034 struct elf_link_hash_entry **sym_hashes;
4035 const Elf_Internal_Rela *rel;
4036 const Elf_Internal_Rela *rel_end;
a6aa5195 4037 asection *got2, *sreloc;
727fc41e 4038 struct elf_link_hash_entry *tga;
25dbc73a 4039
0e1862bb 4040 if (bfd_link_relocatable (info))
25dbc73a 4041 return TRUE;
252b5132 4042
c87b5a93
AM
4043 /* Don't do anything special with non-loaded, non-alloced sections.
4044 In particular, any relocs in such sections should not affect GOT
4045 and PLT reference counting (ie. we don't allow them to create GOT
4046 or PLT entries), there's no possibility or desire to optimize TLS
4047 relocs, and there's not much point in propagating relocs to shared
4048 libs that the dynamic linker won't relocate. */
4049 if ((sec->flags & SEC_ALLOC) == 0)
4050 return TRUE;
4051
252b5132 4052#ifdef DEBUG
871b3ab2 4053 _bfd_error_handler ("ppc_elf_check_relocs called for section %pA in %pB",
25dbc73a 4054 sec, abfd);
252b5132
RH
4055#endif
4056
0c8d6e5c 4057 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 4058
25dbc73a
AM
4059 /* Initialize howto table if not already done. */
4060 if (!ppc_elf_howto_table[R_PPC_ADDR32])
4061 ppc_elf_howto_init ();
4062
7619e7c7 4063 htab = ppc_elf_hash_table (info);
25f23106
AM
4064 if (htab->glink == NULL)
4065 {
4066 if (htab->elf.dynobj == NULL)
4067 htab->elf.dynobj = abfd;
4068 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
4069 return FALSE;
4070 }
727fc41e
AM
4071 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4072 FALSE, FALSE, TRUE);
0ffa91dd 4073 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 4074 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 4075 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4076 sreloc = NULL;
4077
4078 rel_end = relocs + sec->reloc_count;
4079 for (rel = relocs; rel < rel_end; rel++)
4080 {
4081 unsigned long r_symndx;
4082 enum elf_ppc_reloc_type r_type;
4083 struct elf_link_hash_entry *h;
727fc41e 4084 int tls_type;
cbf95972 4085 struct plt_entry **ifunc;
2d7ad24e
AM
4086 struct plt_entry **pltent;
4087 bfd_vma addend;
25dbc73a
AM
4088
4089 r_symndx = ELF32_R_SYM (rel->r_info);
4090 if (r_symndx < symtab_hdr->sh_info)
4091 h = NULL;
4092 else
973a3492
L
4093 {
4094 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4095 while (h->root.type == bfd_link_hash_indirect
4096 || h->root.type == bfd_link_hash_warning)
4097 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4098 }
25dbc73a
AM
4099
4100 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4101 This shows up in particular in an R_PPC_ADDR32 in the eabi
4102 startup code. */
3b36f7e6 4103 if (h != NULL
ce558b89 4104 && htab->elf.sgot == NULL
3b36f7e6 4105 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4106 {
3b36f7e6
AM
4107 if (htab->elf.dynobj == NULL)
4108 htab->elf.dynobj = abfd;
4109 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4110 return FALSE;
4111 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4112 }
252b5132 4113
727fc41e 4114 tls_type = 0;
de972ffa 4115 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4116 ifunc = NULL;
06a162cf 4117 if (h == NULL && !htab->is_vxworks)
e054468f 4118 {
06a162cf
AM
4119 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4120 abfd, r_symndx);
4121 if (isym == NULL)
4122 return FALSE;
4123
0bed072f 4124 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4125 {
0bed072f 4126 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf 4127 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
37da22e5 4128 NON_GOT | PLT_IFUNC);
06a162cf 4129 if (ifunc == NULL)
e054468f
AM
4130 return FALSE;
4131
06a162cf
AM
4132 /* STT_GNU_IFUNC symbols must have a PLT entry;
4133 In a non-pie executable even when there are
4134 no plt calls. */
0e1862bb 4135 if (!bfd_link_pic (info)
08be3224
AM
4136 || is_branch_reloc (r_type)
4137 || r_type == R_PPC_PLT16_LO
4138 || r_type == R_PPC_PLT16_HI
4139 || r_type == R_PPC_PLT16_HA)
e054468f 4140 {
2d7ad24e 4141 addend = 0;
0bed072f 4142 if (r_type == R_PPC_PLTREL24)
08be3224
AM
4143 ppc_elf_tdata (abfd)->makes_plt_call = 1;
4144 if (bfd_link_pic (info)
4145 && (r_type == R_PPC_PLTREL24
4146 || r_type == R_PPC_PLT16_LO
4147 || r_type == R_PPC_PLT16_HI
4148 || r_type == R_PPC_PLT16_HA))
4149 addend = rel->r_addend;
0bed072f
AM
4150 if (!update_plt_info (abfd, ifunc, got2, addend))
4151 return FALSE;
e054468f
AM
4152 }
4153 }
25f23106
AM
4154 }
4155
de972ffa
AM
4156 if (!htab->is_vxworks
4157 && is_branch_reloc (r_type)
4158 && h != NULL
4159 && h == tga)
25f23106 4160 {
de972ffa
AM
4161 if (rel != relocs
4162 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4163 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4164 /* We have a new-style __tls_get_addr call with a marker
4165 reloc. */
4166 ;
4167 else
4168 /* Mark this section as having an old-style call. */
4169 sec->has_tls_get_addr_call = 1;
e054468f 4170 }
727fc41e 4171
25dbc73a
AM
4172 switch (r_type)
4173 {
727fc41e
AM
4174 case R_PPC_TLSGD:
4175 case R_PPC_TLSLD:
4176 /* These special tls relocs tie a call to __tls_get_addr with
4177 its parameter symbol. */
37da22e5
AM
4178 if (h != NULL)
4179 ppc_elf_hash_entry (h)->tls_mask |= TLS_TLS | TLS_MARK;
4180 else
4181 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4182 NON_GOT | TLS_TLS | TLS_MARK))
4183 return FALSE;
727fc41e
AM
4184 break;
4185
23cedd1d
AM
4186 case R_PPC_PLTSEQ:
4187 break;
4188
25dbc73a
AM
4189 case R_PPC_GOT_TLSLD16:
4190 case R_PPC_GOT_TLSLD16_LO:
4191 case R_PPC_GOT_TLSLD16_HI:
4192 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4193 tls_type = TLS_TLS | TLS_LD;
4194 goto dogottls;
252b5132 4195
25dbc73a
AM
4196 case R_PPC_GOT_TLSGD16:
4197 case R_PPC_GOT_TLSGD16_LO:
4198 case R_PPC_GOT_TLSGD16_HI:
4199 case R_PPC_GOT_TLSGD16_HA:
4200 tls_type = TLS_TLS | TLS_GD;
4201 goto dogottls;
4202
4203 case R_PPC_GOT_TPREL16:
4204 case R_PPC_GOT_TPREL16_LO:
4205 case R_PPC_GOT_TPREL16_HI:
4206 case R_PPC_GOT_TPREL16_HA:
7c8bbca5 4207 if (bfd_link_dll (info))
25dbc73a
AM
4208 info->flags |= DF_STATIC_TLS;
4209 tls_type = TLS_TLS | TLS_TPREL;
4210 goto dogottls;
4211
4212 case R_PPC_GOT_DTPREL16:
4213 case R_PPC_GOT_DTPREL16_LO:
4214 case R_PPC_GOT_DTPREL16_HI:
4215 case R_PPC_GOT_DTPREL16_HA:
4216 tls_type = TLS_TLS | TLS_DTPREL;
4217 dogottls:
4218 sec->has_tls_reloc = 1;
1a0670f3 4219 /* Fall through. */
252b5132 4220
25dbc73a
AM
4221 /* GOT16 relocations */
4222 case R_PPC_GOT16:
4223 case R_PPC_GOT16_LO:
4224 case R_PPC_GOT16_HI:
4225 case R_PPC_GOT16_HA:
4226 /* This symbol requires a global offset table entry. */
ce558b89 4227 if (htab->elf.sgot == NULL)
25dbc73a
AM
4228 {
4229 if (htab->elf.dynobj == NULL)
4230 htab->elf.dynobj = abfd;
4231 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4232 return FALSE;
4233 }
4234 if (h != NULL)
4235 {
4236 h->got.refcount += 1;
4237 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4238 }
4239 else
4240 /* This is a global offset table entry for a local symbol. */
4241 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4242 return FALSE;
91e21fb7
AM
4243
4244 /* We may also need a plt entry if the symbol turns out to be
4245 an ifunc. */
0e1862bb 4246 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4247 {
4248 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4249 return FALSE;
4250 }
25dbc73a 4251 break;
252b5132 4252
25dbc73a
AM
4253 /* Indirect .sdata relocation. */
4254 case R_PPC_EMB_SDAI16:
0e1862bb 4255 if (bfd_link_pic (info))
25dbc73a
AM
4256 {
4257 bad_shared_reloc (abfd, r_type);
4258 return FALSE;
4259 }
93d1b056
AM
4260 htab->sdata[0].sym->ref_regular = 1;
4261 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4262 h, rel))
25dbc73a 4263 return FALSE;
046183de
AM
4264 if (h != NULL)
4265 {
4266 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4267 h->non_got_ref = TRUE;
4268 }
25dbc73a 4269 break;
252b5132 4270
25dbc73a
AM
4271 /* Indirect .sdata2 relocation. */
4272 case R_PPC_EMB_SDA2I16:
0e1862bb 4273 if (bfd_link_pic (info))
25dbc73a
AM
4274 {
4275 bad_shared_reloc (abfd, r_type);
4276 return FALSE;
4277 }
93d1b056
AM
4278 htab->sdata[1].sym->ref_regular = 1;
4279 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4280 h, rel))
25dbc73a 4281 return FALSE;
046183de
AM
4282 if (h != NULL)
4283 {
4284 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4285 h->non_got_ref = TRUE;
4286 }
25dbc73a 4287 break;
252b5132 4288
93d1b056
AM
4289 case R_PPC_SDAREL16:
4290 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4291 /* Fall through. */
93d1b056 4292
b9c361e0
JL
4293 case R_PPC_VLE_SDAREL_LO16A:
4294 case R_PPC_VLE_SDAREL_LO16D:
4295 case R_PPC_VLE_SDAREL_HI16A:
4296 case R_PPC_VLE_SDAREL_HI16D:
4297 case R_PPC_VLE_SDAREL_HA16A:
4298 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4299 if (h != NULL)
4300 {
4301 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4302 h->non_got_ref = TRUE;
4303 }
4304 break;
4305
b9c361e0
JL
4306 case R_PPC_VLE_REL8:
4307 case R_PPC_VLE_REL15:
4308 case R_PPC_VLE_REL24:
4309 case R_PPC_VLE_LO16A:
4310 case R_PPC_VLE_LO16D:
4311 case R_PPC_VLE_HI16A:
4312 case R_PPC_VLE_HI16D:
4313 case R_PPC_VLE_HA16A:
4314 case R_PPC_VLE_HA16D:
83eef883 4315 case R_PPC_VLE_ADDR20:
b9c361e0
JL
4316 break;
4317
25dbc73a 4318 case R_PPC_EMB_SDA2REL:
0e1862bb 4319 if (bfd_link_pic (info))
046183de
AM
4320 {
4321 bad_shared_reloc (abfd, r_type);
4322 return FALSE;
4323 }
93d1b056 4324 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4325 if (h != NULL)
4326 {
4327 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4328 h->non_got_ref = TRUE;
4329 }
4330 break;
4331
b9c361e0
JL
4332 case R_PPC_VLE_SDA21_LO:
4333 case R_PPC_VLE_SDA21:
25dbc73a
AM
4334 case R_PPC_EMB_SDA21:
4335 case R_PPC_EMB_RELSDA:
0e1862bb 4336 if (bfd_link_pic (info))
046183de
AM
4337 {
4338 bad_shared_reloc (abfd, r_type);
4339 return FALSE;
4340 }
046183de
AM
4341 if (h != NULL)
4342 {
4343 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4344 h->non_got_ref = TRUE;
4345 }
4346 break;
4347
25dbc73a
AM
4348 case R_PPC_EMB_NADDR32:
4349 case R_PPC_EMB_NADDR16:
4350 case R_PPC_EMB_NADDR16_LO:
4351 case R_PPC_EMB_NADDR16_HI:
4352 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4353 if (bfd_link_pic (info))
25dbc73a
AM
4354 {
4355 bad_shared_reloc (abfd, r_type);
4356 return FALSE;
4357 }
4dc4a9a5 4358 if (h != NULL)
046183de 4359 h->non_got_ref = TRUE;
25dbc73a 4360 break;
252b5132 4361
25dbc73a 4362 case R_PPC_PLTREL24:
de972ffa 4363 if (h == NULL)
6d78d0b9 4364 break;
08be3224 4365 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3e04d765 4366 goto pltentry;
08be3224 4367
23cedd1d 4368 case R_PPC_PLTCALL:
3e04d765
AM
4369 sec->has_pltcall = 1;
4370 /* Fall through. */
4371
6d78d0b9 4372 case R_PPC_PLT32:
25dbc73a
AM
4373 case R_PPC_PLTREL32:
4374 case R_PPC_PLT16_LO:
4375 case R_PPC_PLT16_HI:
4376 case R_PPC_PLT16_HA:
3e04d765 4377 pltentry:
25dbc73a
AM
4378#ifdef DEBUG
4379 fprintf (stderr, "Reloc requires a PLT entry\n");
4380#endif
cbf95972 4381 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4382 if (h == NULL)
4383 {
2d7ad24e
AM
4384 pltent = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4385 NON_GOT | PLT_KEEP);
4386 if (pltent == NULL)
4387 return FALSE;
25dbc73a 4388 }
a6aa5195
AM
4389 else
4390 {
2d7ad24e
AM
4391 if (r_type != R_PPC_PLTREL24)
4392 ppc_elf_hash_entry (h)->tls_mask |= PLT_KEEP;
a6aa5195 4393 h->needs_plt = 1;
2d7ad24e 4394 pltent = &h->plt.plist;
a6aa5195 4395 }
2d7ad24e
AM
4396 addend = 0;
4397 if (bfd_link_pic (info)
4398 && (r_type == R_PPC_PLTREL24
4399 || r_type == R_PPC_PLT16_LO
4400 || r_type == R_PPC_PLT16_HI
4401 || r_type == R_PPC_PLT16_HA))
4402 addend = rel->r_addend;
4403 if (!update_plt_info (abfd, pltent, got2, addend))
4404 return FALSE;
25dbc73a 4405 break;
ee05f2fe 4406
25dbc73a
AM
4407 /* The following relocations don't need to propagate the
4408 relocation if linking a shared object since they are
4409 section relative. */
4410 case R_PPC_SECTOFF:
4411 case R_PPC_SECTOFF_LO:
4412 case R_PPC_SECTOFF_HI:
4413 case R_PPC_SECTOFF_HA:
4414 case R_PPC_DTPREL16:
4415 case R_PPC_DTPREL16_LO:
4416 case R_PPC_DTPREL16_HI:
4417 case R_PPC_DTPREL16_HA:
4418 case R_PPC_TOC16:
4419 break;
252b5132 4420
d7128ce4
AM
4421 case R_PPC_REL16:
4422 case R_PPC_REL16_LO:
4423 case R_PPC_REL16_HI:
4424 case R_PPC_REL16_HA:
a680de9a 4425 case R_PPC_REL16DX_HA:
016687f8 4426 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4427 break;
4428
a6aa5195 4429 /* These are just markers. */
25dbc73a
AM
4430 case R_PPC_TLS:
4431 case R_PPC_EMB_MRKREF:
4432 case R_PPC_NONE:
4433 case R_PPC_max:
32af9f6e
AM
4434 case R_PPC_RELAX:
4435 case R_PPC_RELAX_PLT:
4436 case R_PPC_RELAX_PLTREL24:
7ba71655 4437 case R_PPC_16DX_HA:
25dbc73a 4438 break;
252b5132 4439
25dbc73a
AM
4440 /* These should only appear in dynamic objects. */
4441 case R_PPC_COPY:
4442 case R_PPC_GLOB_DAT:
4443 case R_PPC_JMP_SLOT:
4444 case R_PPC_RELATIVE:
e054468f 4445 case R_PPC_IRELATIVE:
25dbc73a 4446 break;
252b5132 4447
25dbc73a
AM
4448 /* These aren't handled yet. We'll report an error later. */
4449 case R_PPC_ADDR30:
4450 case R_PPC_EMB_RELSEC16:
4451 case R_PPC_EMB_RELST_LO:
4452 case R_PPC_EMB_RELST_HI:
4453 case R_PPC_EMB_RELST_HA:
4454 case R_PPC_EMB_BIT_FLD:
4455 break;
252b5132 4456
25dbc73a
AM
4457 /* This refers only to functions defined in the shared library. */
4458 case R_PPC_LOCAL24PC:
727fc41e 4459 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4460 {
4461 htab->plt_type = PLT_OLD;
4462 htab->old_bfd = abfd;
4463 }
c7e17e05
AM
4464 if (h != NULL && h->type == STT_GNU_IFUNC)
4465 {
c7e17e05
AM
4466 h->needs_plt = 1;
4467 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4468 return FALSE;
4469 }
25dbc73a 4470 break;
252b5132 4471
25dbc73a
AM
4472 /* This relocation describes the C++ object vtable hierarchy.
4473 Reconstruct it for later use during GC. */
4474 case R_PPC_GNU_VTINHERIT:
4475 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4476 return FALSE;
4477 break;
252b5132 4478
25dbc73a
AM
4479 /* This relocation describes which C++ vtable entries are actually
4480 used. Record for later use during GC. */
4481 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4482 BFD_ASSERT (h != NULL);
4483 if (h != NULL
4484 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4485 return FALSE;
4486 break;
252b5132 4487
7c8bbca5 4488 /* We shouldn't really be seeing TPREL32. */
25dbc73a 4489 case R_PPC_TPREL32:
1d483afe
AM
4490 case R_PPC_TPREL16:
4491 case R_PPC_TPREL16_LO:
4492 case R_PPC_TPREL16_HI:
4493 case R_PPC_TPREL16_HA:
7c8bbca5 4494 if (bfd_link_dll (info))
25dbc73a
AM
4495 info->flags |= DF_STATIC_TLS;
4496 goto dodyn;
252b5132 4497
25dbc73a
AM
4498 /* Nor these. */
4499 case R_PPC_DTPMOD32:
4500 case R_PPC_DTPREL32:
4501 goto dodyn;
252b5132 4502
9edfd1af
AM
4503 case R_PPC_REL32:
4504 if (h == NULL
4505 && got2 != NULL
4506 && (sec->flags & SEC_CODE) != 0
0e1862bb 4507 && bfd_link_pic (info)
4a3dc543 4508 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4509 {
4510 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4511 the start of a function, which assembles to a REL32
4512 reference to .got2. If we detect one of these, then
4513 force the old PLT layout because the linker cannot
4514 reliably deduce the GOT pointer value needed for
4515 PLT call stubs. */
4516 asection *s;
87d72d41 4517 Elf_Internal_Sym *isym;
9edfd1af 4518
87d72d41
AM
4519 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4520 abfd, r_symndx);
4521 if (isym == NULL)
4522 return FALSE;
4523
4524 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4525 if (s == got2)
016687f8
AM
4526 {
4527 htab->plt_type = PLT_OLD;
4528 htab->old_bfd = abfd;
4529 }
9edfd1af 4530 }
7123df0e 4531 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4532 break;
625af618
AM
4533 /* fall through */
4534
4535 case R_PPC_ADDR32:
4536 case R_PPC_ADDR16:
4537 case R_PPC_ADDR16_LO:
4538 case R_PPC_ADDR16_HI:
4539 case R_PPC_ADDR16_HA:
4540 case R_PPC_UADDR32:
4541 case R_PPC_UADDR16:
0e1862bb 4542 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4543 {
4544 /* We may need a plt entry if the symbol turns out to be
4545 a function defined in a dynamic object. */
3ec01793 4546 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4547 return FALSE;
4548
4549 /* We may need a copy reloc too. */
4550 h->non_got_ref = 1;
4551 h->pointer_equality_needed = 1;
d3e454b9
AM
4552 if (r_type == R_PPC_ADDR16_HA)
4553 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4554 if (r_type == R_PPC_ADDR16_LO)
4555 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4556 }
4557 goto dodyn;
9edfd1af 4558
25dbc73a
AM
4559 case R_PPC_REL24:
4560 case R_PPC_REL14:
4561 case R_PPC_REL14_BRTAKEN:
4562 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4563 if (h == NULL)
25dbc73a 4564 break;
7123df0e 4565 if (h == htab->elf.hgot)
d7128ce4 4566 {
7123df0e 4567 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4568 {
4569 htab->plt_type = PLT_OLD;
4570 htab->old_bfd = abfd;
4571 }
d7128ce4
AM
4572 break;
4573 }
25dbc73a 4574 /* fall through */
ee05f2fe 4575
25dbc73a 4576 case R_PPC_ADDR24:
25dbc73a
AM
4577 case R_PPC_ADDR14:
4578 case R_PPC_ADDR14_BRTAKEN:
4579 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4580 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4581 {
4582 /* We may need a plt entry if the symbol turns out to be
4583 a function defined in a dynamic object. */
e054468f 4584 h->needs_plt = 1;
de972ffa 4585 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4586 return FALSE;
625af618 4587 break;
25dbc73a 4588 }
7619e7c7 4589
25dbc73a
AM
4590 dodyn:
4591 /* If we are creating a shared library, and this is a reloc
4592 against a global symbol, or a non PC relative reloc
4593 against a local symbol, then we need to copy the reloc
4594 into the shared library. However, if we are linking with
4595 -Bsymbolic, we do not need to copy a reloc against a
4596 global symbol which is defined in an object we are
4597 including in the link (i.e., DEF_REGULAR is set). At
4598 this point we have not seen all the input files, so it is
4599 possible that DEF_REGULAR is not set now but will be set
4600 later (it is never cleared). In case of a weak definition,
4601 DEF_REGULAR may be cleared later by a strong definition in
4602 a shared library. We account for that possibility below by
4603 storing information in the dyn_relocs field of the hash
4604 table entry. A similar situation occurs when creating
4605 shared libraries and symbol visibility changes render the
4606 symbol local.
7619e7c7 4607
25dbc73a
AM
4608 If on the other hand, we are creating an executable, we
4609 may need to keep relocations for symbols satisfied by a
4610 dynamic library if we manage to avoid copy relocs for the
4611 symbol. */
0e1862bb 4612 if ((bfd_link_pic (info)
1d483afe 4613 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4614 || (h != NULL
198f1157 4615 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4616 || h->root.type == bfd_link_hash_defweak
4617 || !h->def_regular))))
4618 || (ELIMINATE_COPY_RELOCS
0e1862bb 4619 && !bfd_link_pic (info)
25dbc73a
AM
4620 && h != NULL
4621 && (h->root.type == bfd_link_hash_defweak
de972ffa 4622 || !h->def_regular)))
25dbc73a 4623 {
25dbc73a
AM
4624#ifdef DEBUG
4625 fprintf (stderr,
4626 "ppc_elf_check_relocs needs to "
4627 "create relocation for %s\n",
4628 (h && h->root.root.string
4629 ? h->root.root.string : "<unknown>"));
4630#endif
4631 if (sreloc == NULL)
4632 {
c9a2f333
AM
4633 if (htab->elf.dynobj == NULL)
4634 htab->elf.dynobj = abfd;
83bac4b0
NC
4635
4636 sreloc = _bfd_elf_make_dynamic_reloc_section
4637 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4638
25dbc73a 4639 if (sreloc == NULL)
83bac4b0 4640 return FALSE;
25dbc73a 4641 }
7619e7c7 4642
25dbc73a
AM
4643 /* If this is a global symbol, we count the number of
4644 relocations we need for this symbol. */
4645 if (h != NULL)
4646 {
f95f8542
AM
4647 struct elf_dyn_relocs *p;
4648 struct elf_dyn_relocs **rel_head;
4649
91d6fa6a 4650 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4651 p = *rel_head;
4652 if (p == NULL || p->sec != sec)
4653 {
4654 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4655 if (p == NULL)
4656 return FALSE;
4657 p->next = *rel_head;
4658 *rel_head = p;
4659 p->sec = sec;
4660 p->count = 0;
4661 p->pc_count = 0;
4662 }
4663 p->count += 1;
4664 if (!must_be_dyn_reloc (info, r_type))
4665 p->pc_count += 1;
25dbc73a
AM
4666 }
4667 else
4668 {
4669 /* Track dynamic relocs needed for local syms too.
4670 We really need local syms available to do this
4671 easily. Oh well. */
f95f8542
AM
4672 struct ppc_dyn_relocs *p;
4673 struct ppc_dyn_relocs **rel_head;
4674 bfd_boolean is_ifunc;
25dbc73a 4675 asection *s;
6edfbbad 4676 void *vpp;
87d72d41 4677 Elf_Internal_Sym *isym;
6edfbbad 4678
87d72d41
AM
4679 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4680 abfd, r_symndx);
4681 if (isym == NULL)
25dbc73a 4682 return FALSE;
7fce784e 4683
87d72d41
AM
4684 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4685 if (s == NULL)
4686 s = sec;
4687
6edfbbad 4688 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4689 rel_head = (struct ppc_dyn_relocs **) vpp;
4690 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4691 p = *rel_head;
4692 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4693 p = p->next;
4694 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4695 {
4696 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4697 if (p == NULL)
4698 return FALSE;
4699 p->next = *rel_head;
4700 *rel_head = p;
4701 p->sec = sec;
4702 p->ifunc = is_ifunc;
4703 p->count = 0;
4704 }
4705 p->count += 1;
25dbc73a 4706 }
7619e7c7 4707 }
25dbc73a
AM
4708
4709 break;
7619e7c7
AM
4710 }
4711 }
ee05f2fe 4712
25dbc73a
AM
4713 return TRUE;
4714}
4715\f
005d79fd
AM
4716/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4717 and OBFD, and merge non-conflicting ones. */
4a91d0ba 4718bfd_boolean
50e03d47 4719_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4720{
50e03d47 4721 bfd *obfd = info->output_bfd;
c6e65352
DJ
4722 obj_attribute *in_attr, *in_attrs;
4723 obj_attribute *out_attr, *out_attrs;
4a91d0ba 4724 bfd_boolean ret = TRUE;
34c8bcba 4725
c6e65352
DJ
4726 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4727 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4728
c6e65352
DJ
4729 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4730 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4731
c6e65352 4732 if (in_attr->i != out_attr->i)
34c8bcba 4733 {
005d79fd
AM
4734 int in_fp = in_attr->i & 3;
4735 int out_fp = out_attr->i & 3;
4a91d0ba 4736 static bfd *last_fp, *last_ld;
005d79fd
AM
4737
4738 if (in_fp == 0)
34c8bcba 4739 ;
005d79fd
AM
4740 else if (out_fp == 0)
4741 {
8d2c8c3d 4742 out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
005d79fd 4743 out_attr->i ^= in_fp;
4a91d0ba 4744 last_fp = ibfd;
005d79fd
AM
4745 }
4746 else if (out_fp != 2 && in_fp == 2)
8d2c8c3d
AM
4747 {
4748 _bfd_error_handler
4749 /* xgettext:c-format */
4a91d0ba
AM
4750 (_("%pB uses hard float, %pB uses soft float"),
4751 last_fp, ibfd);
4752 ret = FALSE;
8d2c8c3d 4753 }
005d79fd 4754 else if (out_fp == 2 && in_fp != 2)
8d2c8c3d
AM
4755 {
4756 _bfd_error_handler
4757 /* xgettext:c-format */
4a91d0ba
AM
4758 (_("%pB uses hard float, %pB uses soft float"),
4759 ibfd, last_fp);
4760 ret = FALSE;
8d2c8c3d 4761 }
005d79fd 4762 else if (out_fp == 1 && in_fp == 3)
8d2c8c3d
AM
4763 {
4764 _bfd_error_handler
4765 /* xgettext:c-format */
4a91d0ba
AM
4766 (_("%pB uses double-precision hard float, "
4767 "%pB uses single-precision hard float"), last_fp, ibfd);
4768 ret = FALSE;
8d2c8c3d 4769 }
005d79fd 4770 else if (out_fp == 3 && in_fp == 1)
8d2c8c3d
AM
4771 {
4772 _bfd_error_handler
4773 /* xgettext:c-format */
4a91d0ba
AM
4774 (_("%pB uses double-precision hard float, "
4775 "%pB uses single-precision hard float"), ibfd, last_fp);
4776 ret = FALSE;
8d2c8c3d 4777 }
005d79fd
AM
4778
4779 in_fp = in_attr->i & 0xc;
4780 out_fp = out_attr->i & 0xc;
4781 if (in_fp == 0)
4782 ;
4783 else if (out_fp == 0)
4784 {
8d2c8c3d 4785 out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
005d79fd 4786 out_attr->i ^= in_fp;
4a91d0ba 4787 last_ld = ibfd;
005d79fd
AM
4788 }
4789 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
8d2c8c3d
AM
4790 {
4791 _bfd_error_handler
4792 /* xgettext:c-format */
4a91d0ba
AM
4793 (_("%pB uses 64-bit long double, "
4794 "%pB uses 128-bit long double"), ibfd, last_ld);
4795 ret = FALSE;
8d2c8c3d 4796 }
005d79fd 4797 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
8d2c8c3d
AM
4798 {
4799 _bfd_error_handler
4800 /* xgettext:c-format */
4a91d0ba
AM
4801 (_("%pB uses 64-bit long double, "
4802 "%pB uses 128-bit long double"), last_ld, ibfd);
4803 ret = FALSE;
8d2c8c3d 4804 }
005d79fd 4805 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
8d2c8c3d
AM
4806 {
4807 _bfd_error_handler
4808 /* xgettext:c-format */
4a91d0ba
AM
4809 (_("%pB uses IBM long double, "
4810 "%pB uses IEEE long double"), last_ld, ibfd);
4811 ret = FALSE;
8d2c8c3d 4812 }
005d79fd 4813 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
8d2c8c3d
AM
4814 {
4815 _bfd_error_handler
4816 /* xgettext:c-format */
4a91d0ba
AM
4817 (_("%pB uses IBM long double, "
4818 "%pB uses IEEE long double"), ibfd, last_ld);
4819 ret = FALSE;
8d2c8c3d 4820 }
c6e65352 4821 }
4a91d0ba
AM
4822
4823 if (!ret)
4824 {
4825 out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
4826 bfd_set_error (bfd_error_bad_value);
4827 }
4828 return ret;
005d79fd
AM
4829}
4830
4831/* Merge object attributes from IBFD into OBFD. Warn if
4832 there are conflicting attributes. */
4833static bfd_boolean
50e03d47 4834ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4835{
50e03d47 4836 bfd *obfd;
005d79fd
AM
4837 obj_attribute *in_attr, *in_attrs;
4838 obj_attribute *out_attr, *out_attrs;
4a91d0ba 4839 bfd_boolean ret;
005d79fd 4840
4a91d0ba
AM
4841 if (!_bfd_elf_ppc_merge_fp_attributes (ibfd, info))
4842 return FALSE;
005d79fd 4843
50e03d47 4844 obfd = info->output_bfd;
005d79fd
AM
4845 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4846 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4847
4848 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4849 merge non-conflicting ones. */
4850 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4851 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4a91d0ba 4852 ret = TRUE;
c6e65352
DJ
4853 if (in_attr->i != out_attr->i)
4854 {
005d79fd
AM
4855 int in_vec = in_attr->i & 3;
4856 int out_vec = out_attr->i & 3;
4a91d0ba 4857 static bfd *last_vec;
c6e65352 4858
005d79fd
AM
4859 if (in_vec == 0)
4860 ;
4861 else if (out_vec == 0)
c6e65352 4862 {
8d2c8c3d 4863 out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
005d79fd 4864 out_attr->i = in_vec;
4a91d0ba 4865 last_vec = ibfd;
c6e65352 4866 }
c6e65352
DJ
4867 /* For now, allow generic to transition to AltiVec or SPE
4868 without a warning. If GCC marked files with their stack
4869 alignment and used don't-care markings for files which are
4870 not affected by the vector ABI, we could warn about this
4871 case too. */
005d79fd 4872 else if (in_vec == 1)
c6e65352 4873 ;
005d79fd
AM
4874 else if (out_vec == 1)
4875 {
8d2c8c3d 4876 out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
005d79fd 4877 out_attr->i = in_vec;
4a91d0ba 4878 last_vec = ibfd;
005d79fd
AM
4879 }
4880 else if (out_vec < in_vec)
8d2c8c3d
AM
4881 {
4882 _bfd_error_handler
4883 /* xgettext:c-format */
4a91d0ba
AM
4884 (_("%pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
4885 last_vec, ibfd);
8d2c8c3d 4886 out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
4a91d0ba 4887 ret = FALSE;
8d2c8c3d 4888 }
005d79fd 4889 else if (out_vec > in_vec)
8d2c8c3d
AM
4890 {
4891 _bfd_error_handler
4892 /* xgettext:c-format */
4a91d0ba
AM
4893 (_("%pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
4894 ibfd, last_vec);
8d2c8c3d 4895 out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
4a91d0ba 4896 ret = FALSE;
8d2c8c3d 4897 }
34c8bcba
JM
4898 }
4899
f82e0623
NF
4900 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4901 and merge non-conflicting ones. */
4902 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4903 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4904 if (in_attr->i != out_attr->i)
4905 {
005d79fd
AM
4906 int in_struct = in_attr->i & 3;
4907 int out_struct = out_attr->i & 3;
4a91d0ba 4908 static bfd *last_struct;
005d79fd
AM
4909
4910 if (in_struct == 0 || in_struct == 3)
f82e0623 4911 ;
005d79fd
AM
4912 else if (out_struct == 0)
4913 {
8d2c8c3d 4914 out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
005d79fd 4915 out_attr->i = in_struct;
4a91d0ba 4916 last_struct = ibfd;
005d79fd
AM
4917 }
4918 else if (out_struct < in_struct)
8d2c8c3d
AM
4919 {
4920 _bfd_error_handler
4921 /* xgettext:c-format */
4a91d0ba
AM
4922 (_("%pB uses r3/r4 for small structure returns, "
4923 "%pB uses memory"), last_struct, ibfd);
8d2c8c3d 4924 out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
4a91d0ba 4925 ret = FALSE;
8d2c8c3d 4926 }
005d79fd 4927 else if (out_struct > in_struct)
8d2c8c3d
AM
4928 {
4929 _bfd_error_handler
4930 /* xgettext:c-format */
4a91d0ba
AM
4931 (_("%pB uses r3/r4 for small structure returns, "
4932 "%pB uses memory"), ibfd, last_struct);
8d2c8c3d 4933 out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
4a91d0ba 4934 ret = FALSE;
8d2c8c3d 4935 }
f82e0623 4936 }
4a91d0ba
AM
4937 if (!ret)
4938 {
4939 bfd_set_error (bfd_error_bad_value);
4940 return FALSE;
4941 }
f82e0623 4942
34c8bcba 4943 /* Merge Tag_compatibility attributes and any common GNU ones. */
8d2c8c3d 4944 return _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4945}
4946
8853c3d3
AM
4947/* Merge backend specific data from an object file to the output
4948 object file when linking. */
4949
4950static bfd_boolean
50e03d47 4951ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4952{
50e03d47 4953 bfd *obfd = info->output_bfd;
8853c3d3
AM
4954 flagword old_flags;
4955 flagword new_flags;
4956 bfd_boolean error;
4957
0c8d6e5c 4958 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4959 return TRUE;
4960
cc643b88 4961 /* Check if we have the same endianness. */
50e03d47 4962 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4963 return FALSE;
4964
50e03d47 4965 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4966 return FALSE;
4967
8853c3d3
AM
4968 new_flags = elf_elfheader (ibfd)->e_flags;
4969 old_flags = elf_elfheader (obfd)->e_flags;
4970 if (!elf_flags_init (obfd))
4971 {
4972 /* First call, no flags set. */
4973 elf_flags_init (obfd) = TRUE;
4974 elf_elfheader (obfd)->e_flags = new_flags;
4975 }
4976
4977 /* Compatible flags are ok. */
4978 else if (new_flags == old_flags)
4979 ;
4980
4981 /* Incompatible flags. */
4982 else
4983 {
4984 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4985 to be linked with either. */
4986 error = FALSE;
4987 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4988 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4989 {
4990 error = TRUE;
4eca0228 4991 _bfd_error_handler
871b3ab2 4992 (_("%pB: compiled with -mrelocatable and linked with "
8853c3d3
AM
4993 "modules compiled normally"), ibfd);
4994 }
4995 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4996 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4997 {
4998 error = TRUE;
4eca0228 4999 _bfd_error_handler
871b3ab2 5000 (_("%pB: compiled normally and linked with "
8853c3d3
AM
5001 "modules compiled with -mrelocatable"), ibfd);
5002 }
5003
5004 /* The output is -mrelocatable-lib iff both the input files are. */
5005 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
5006 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
5007
5008 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
5009 but each input file is either -mrelocatable or -mrelocatable-lib. */
5010 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
5011 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
5012 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
5013 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
5014
5015 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
5016 any module uses it. */
5017 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
5018
5019 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
5020 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
5021
5022 /* Warn about any other mismatches. */
5023 if (new_flags != old_flags)
5024 {
5025 error = TRUE;
4eca0228 5026 _bfd_error_handler
695344c0 5027 /* xgettext:c-format */
871b3ab2 5028 (_("%pB: uses different e_flags (%#x) fields "
cd9af601
AM
5029 "than previous modules (%#x)"),
5030 ibfd, new_flags, old_flags);
8853c3d3
AM
5031 }
5032
5033 if (error)
5034 {
5035 bfd_set_error (bfd_error_bad_value);
5036 return FALSE;
5037 }
5038 }
5039
5040 return TRUE;
5041}
b9c361e0
JL
5042
5043static void
95f0d0d2 5044ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
5045 asection *input_section,
5046 unsigned long offset,
95f0d0d2 5047 bfd_byte *loc,
86c95733 5048 bfd_vma value,
08dc996f
AM
5049 split16_format_type split16_format,
5050 bfd_boolean fixup)
b9c361e0 5051{
08dc996f 5052 unsigned int insn, opcode, top5;
b9c361e0 5053
95f0d0d2 5054 insn = bfd_get_32 (input_bfd, loc);
673cff9b 5055 opcode = insn & 0xfc00f800;
08dc996f
AM
5056 if (opcode == E_OR2I_INSN
5057 || opcode == E_AND2I_DOT_INSN
5058 || opcode == E_OR2IS_INSN
5059 || opcode == E_LIS_INSN
5060 || opcode == E_AND2IS_DOT_INSN)
5061 {
5062 if (split16_format != split16a_type)
5063 {
5064 if (fixup)
5065 split16_format = split16a_type;
5066 else
5067 _bfd_error_handler
5068 /* xgettext:c-format */
871b3ab2 5069 (_("%pB(%pA+0x%lx): expected 16A style relocation on 0x%08x insn"),
08dc996f
AM
5070 input_bfd, input_section, offset, opcode);
5071 }
5072 }
5073 else if (opcode == E_ADD2I_DOT_INSN
5074 || opcode == E_ADD2IS_INSN
5075 || opcode == E_CMP16I_INSN
5076 || opcode == E_MULL2I_INSN
5077 || opcode == E_CMPL16I_INSN
5078 || opcode == E_CMPH16I_INSN
5079 || opcode == E_CMPHL16I_INSN)
5080 {
5081 if (split16_format != split16d_type)
5082 {
5083 if (fixup)
5084 split16_format = split16d_type;
5085 else
5086 _bfd_error_handler
5087 /* xgettext:c-format */
871b3ab2 5088 (_("%pB(%pA+0x%lx): expected 16D style relocation on 0x%08x insn"),
08dc996f
AM
5089 input_bfd, input_section, offset, opcode);
5090 }
5091 }
86c95733 5092 top5 = value & 0xf800;
5499c7c7
AM
5093 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
5094 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
b9c361e0 5095 insn |= top5;
86c95733 5096 insn |= value & 0x7ff;
95f0d0d2 5097 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 5098}
83eef883
AFB
5099
5100static void
5101ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
5102{
5103 unsigned int insn;
5104
5105 insn = bfd_get_32 (output_bfd, loc);
5106 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
5107 /* Top 4 bits of value to 17..20. */
5108 insn |= (value & 0xf0000) >> 5;
5109 /* Next 5 bits of the value to 11..15. */
5110 insn |= (value & 0xf800) << 5;
5111 /* And the final 11 bits of the value to bits 21 to 31. */
5112 insn |= value & 0x7ff;
5113 bfd_put_32 (output_bfd, insn, loc);
5114}
5115
8853c3d3 5116\f
d7128ce4
AM
5117/* Choose which PLT scheme to use, and set .plt flags appropriately.
5118 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
5119int
5120ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 5121 struct bfd_link_info *info)
d7128ce4
AM
5122{
5123 struct ppc_elf_link_hash_table *htab;
9d8504b1 5124 flagword flags;
d7128ce4
AM
5125
5126 htab = ppc_elf_hash_table (info);
4a3dc543
RS
5127
5128 if (htab->plt_type == PLT_UNSET)
016687f8 5129 {
b3874e1a
AM
5130 struct elf_link_hash_entry *h;
5131
5446cbdf 5132 if (htab->params->plt_style == PLT_OLD)
016687f8 5133 htab->plt_type = PLT_OLD;
0e1862bb 5134 else if (bfd_link_pic (info)
b3874e1a
AM
5135 && htab->elf.dynamic_sections_created
5136 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
5137 FALSE, FALSE, TRUE)) != NULL
5138 && (h->type == STT_FUNC
5139 || h->needs_plt)
5140 && h->ref_regular
5141 && !(SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 5142 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
b3874e1a
AM
5143 {
5144 /* Profiling of shared libs (and pies) is not supported with
5145 secure plt, because ppc32 does profiling before a
5146 function prologue and a secure plt pic call stubs needs
5147 r30 to be set up. */
5148 htab->plt_type = PLT_OLD;
5149 }
016687f8
AM
5150 else
5151 {
5152 bfd *ibfd;
5446cbdf 5153 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
5154
5155 /* Look through the reloc flags left by ppc_elf_check_relocs.
5156 Use the old style bss plt if a file makes plt calls
5157 without using the new relocs, and if ld isn't given
5158 --secure-plt and we never see REL16 relocs. */
5159 if (plt_type == PLT_UNSET)
5160 plt_type = PLT_OLD;
c72f2fb2 5161 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 5162 if (is_ppc_elf (ibfd))
016687f8
AM
5163 {
5164 if (ppc_elf_tdata (ibfd)->has_rel16)
5165 plt_type = PLT_NEW;
5166 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5167 {
5168 plt_type = PLT_OLD;
5169 htab->old_bfd = ibfd;
5170 break;
5171 }
5172 }
5173 htab->plt_type = plt_type;
5174 }
5175 }
5446cbdf 5176 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5177 {
5178 if (htab->old_bfd != NULL)
cf97bcb0 5179 _bfd_error_handler (_("bss-plt forced due to %pB"), htab->old_bfd);
b3874e1a 5180 else
cf97bcb0 5181 _bfd_error_handler (_("bss-plt forced by profiling"));
b3874e1a 5182 }
d7128ce4 5183
4a3dc543 5184 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5185
4a3dc543 5186 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5187 {
5188 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5189 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5190
5191 /* The new PLT is a loaded section. */
ce558b89
AM
5192 if (htab->elf.splt != NULL
5193 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5194 return -1;
5195
5196 /* The new GOT is not executable. */
ce558b89
AM
5197 if (htab->elf.sgot != NULL
5198 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5199 return -1;
d7128ce4
AM
5200 }
5201 else
5202 {
5203 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5204 if (htab->glink != NULL
5205 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5206 return -1;
d7128ce4 5207 }
4a3dc543 5208 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5209}
5210\f
25dbc73a
AM
5211/* Return the section that should be marked against GC for a given
5212 relocation. */
586119b3 5213
25dbc73a
AM
5214static asection *
5215ppc_elf_gc_mark_hook (asection *sec,
07adf181 5216 struct bfd_link_info *info,
25dbc73a
AM
5217 Elf_Internal_Rela *rel,
5218 struct elf_link_hash_entry *h,
5219 Elf_Internal_Sym *sym)
5220{
5221 if (h != NULL)
07adf181
AM
5222 switch (ELF32_R_TYPE (rel->r_info))
5223 {
5224 case R_PPC_GNU_VTINHERIT:
5225 case R_PPC_GNU_VTENTRY:
5226 return NULL;
5227 }
5228
5229 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5230}
49c09209
AM
5231
5232static bfd_boolean
5233get_sym_h (struct elf_link_hash_entry **hp,
5234 Elf_Internal_Sym **symp,
5235 asection **symsecp,
5236 unsigned char **tls_maskp,
5237 Elf_Internal_Sym **locsymsp,
5238 unsigned long r_symndx,
5239 bfd *ibfd)
5240{
5241 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5242
5243 if (r_symndx >= symtab_hdr->sh_info)
5244 {
5245 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5246 struct elf_link_hash_entry *h;
5247
5248 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5249 while (h->root.type == bfd_link_hash_indirect
5250 || h->root.type == bfd_link_hash_warning)
5251 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5252
5253 if (hp != NULL)
5254 *hp = h;
5255
5256 if (symp != NULL)
5257 *symp = NULL;
5258
5259 if (symsecp != NULL)
5260 {
5261 asection *symsec = NULL;
5262 if (h->root.type == bfd_link_hash_defined
5263 || h->root.type == bfd_link_hash_defweak)
5264 symsec = h->root.u.def.section;
5265 *symsecp = symsec;
5266 }
5267
5268 if (tls_maskp != NULL)
5269 *tls_maskp = &ppc_elf_hash_entry (h)->tls_mask;
5270 }
5271 else
5272 {
5273 Elf_Internal_Sym *sym;
5274 Elf_Internal_Sym *locsyms = *locsymsp;
5275
5276 if (locsyms == NULL)
5277 {
5278 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5279 if (locsyms == NULL)
5280 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5281 symtab_hdr->sh_info,
5282 0, NULL, NULL, NULL);
5283 if (locsyms == NULL)
5284 return FALSE;
5285 *locsymsp = locsyms;
5286 }
5287 sym = locsyms + r_symndx;
5288
5289 if (hp != NULL)
5290 *hp = NULL;
5291
5292 if (symp != NULL)
5293 *symp = sym;
5294
5295 if (symsecp != NULL)
5296 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5297
5298 if (tls_maskp != NULL)
5299 {
5300 bfd_signed_vma *local_got;
5301 unsigned char *tls_mask;
5302
5303 tls_mask = NULL;
5304 local_got = elf_local_got_refcounts (ibfd);
5305 if (local_got != NULL)
5306 {
5307 struct plt_entry **local_plt = (struct plt_entry **)
5308 (local_got + symtab_hdr->sh_info);
5309 unsigned char *lgot_masks = (unsigned char *)
5310 (local_plt + symtab_hdr->sh_info);
5311 tls_mask = &lgot_masks[r_symndx];
5312 }
5313 *tls_maskp = tls_mask;
5314 }
5315 }
5316 return TRUE;
5317}
25dbc73a 5318\f
3e04d765
AM
5319/* Analyze inline PLT call relocations to see whether calls to locally
5320 defined functions can be converted to direct calls. */
5321
5322bfd_boolean
5323ppc_elf_inline_plt (struct bfd_link_info *info)
5324{
5325 struct ppc_elf_link_hash_table *htab;
5326 bfd *ibfd;
5327 asection *sec;
5328 bfd_vma low_vma, high_vma, limit;
5329
5330 htab = ppc_elf_hash_table (info);
5331 if (htab == NULL)
5332 return FALSE;
5333
5334 /* A bl insn can reach -0x2000000 to 0x1fffffc. The limit is
5335 reduced somewhat to cater for possible stubs that might be added
5336 between the call and its destination. */
5337 limit = 0x1e00000;
5338 low_vma = -1;
5339 high_vma = 0;
5340 for (sec = info->output_bfd->sections; sec != NULL; sec = sec->next)
5341 if ((sec->flags & (SEC_ALLOC | SEC_CODE)) == (SEC_ALLOC | SEC_CODE))
5342 {
5343 if (low_vma > sec->vma)
5344 low_vma = sec->vma;
5345 if (high_vma < sec->vma + sec->size)
5346 high_vma = sec->vma + sec->size;
5347 }
5348
5349 /* If a "bl" can reach anywhere in local code sections, then we can
5350 convert all inline PLT sequences to direct calls when the symbol
5351 is local. */
5352 if (high_vma - low_vma < limit)
5353 {
5354 htab->can_convert_all_inline_plt = 1;
5355 return TRUE;
5356 }
5357
5358 /* Otherwise, go looking through relocs for cases where a direct
5359 call won't reach. Mark the symbol on any such reloc to disable
5360 the optimization and keep the PLT entry as it seems likely that
5361 this will be better than creating trampolines. Note that this
5362 will disable the optimization for all inline PLT calls to a
5363 particular symbol, not just those that won't reach. The
5364 difficulty in doing a more precise optimization is that the
5365 linker needs to make a decision depending on whether a
5366 particular R_PPC_PLTCALL insn can be turned into a direct
5367 call, for each of the R_PPC_PLTSEQ and R_PPC_PLT16* insns in
5368 the sequence, and there is nothing that ties those relocs
5369 together except their symbol. */
5370
5371 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
5372 {
5373 Elf_Internal_Shdr *symtab_hdr;
5374 Elf_Internal_Sym *local_syms;
5375
5376 if (!is_ppc_elf (ibfd))
5377 continue;
5378
5379 local_syms = NULL;
5380 symtab_hdr = &elf_symtab_hdr (ibfd);
5381
5382 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5383 if (sec->has_pltcall
5384 && !bfd_is_abs_section (sec->output_section))
5385 {
5386 Elf_Internal_Rela *relstart, *rel, *relend;
5387
5388 /* Read the relocations. */
5389 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5390 info->keep_memory);
5391 if (relstart == NULL)
5392 return FALSE;
5393
5394 relend = relstart + sec->reloc_count;
5395 for (rel = relstart; rel < relend; )
5396 {
5397 enum elf_ppc_reloc_type r_type;
5398 unsigned long r_symndx;
5399 asection *sym_sec;
5400 struct elf_link_hash_entry *h;
5401 Elf_Internal_Sym *sym;
5402 unsigned char *tls_maskp;
5403
5404 r_type = ELF32_R_TYPE (rel->r_info);
5405 if (r_type != R_PPC_PLTCALL)
5406 continue;
5407
5408 r_symndx = ELF32_R_SYM (rel->r_info);
5409 if (!get_sym_h (&h, &sym, &sym_sec, &tls_maskp, &local_syms,
5410 r_symndx, ibfd))
5411 {
5412 if (elf_section_data (sec)->relocs != relstart)
5413 free (relstart);
5414 if (local_syms != NULL
5415 && symtab_hdr->contents != (unsigned char *) local_syms)
5416 free (local_syms);
5417 return FALSE;
5418 }
5419
5420 if (sym_sec != NULL && sym_sec->output_section != NULL)
5421 {
5422 bfd_vma from, to;
5423 if (h != NULL)
5424 to = h->root.u.def.value;
5425 else
5426 to = sym->st_value;
5427 to += (rel->r_addend
5428 + sym_sec->output_offset
5429 + sym_sec->output_section->vma);
5430 from = (rel->r_offset
5431 + sec->output_offset
5432 + sec->output_section->vma);
5433 if (to - from + limit < 2 * limit)
5434 *tls_maskp &= ~PLT_KEEP;
5435 }
5436 }
5437 if (elf_section_data (sec)->relocs != relstart)
5438 free (relstart);
5439 }
5440
5441 if (local_syms != NULL
5442 && symtab_hdr->contents != (unsigned char *) local_syms)
5443 {
5444 if (!info->keep_memory)
5445 free (local_syms);
5446 else
5447 symtab_hdr->contents = (unsigned char *) local_syms;
5448 }
5449 }
5450
5451 return TRUE;
5452}
5453
3a71aa26
AM
5454/* Set plt output section type, htab->tls_get_addr, and call the
5455 generic ELF tls_setup function. */
7fce784e 5456
25dbc73a 5457asection *
5446cbdf 5458ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5459{
25dbc73a 5460 struct ppc_elf_link_hash_table *htab;
7fce784e 5461
25dbc73a 5462 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5463 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5464 FALSE, FALSE, TRUE);
f01f1741
AM
5465 if (htab->plt_type != PLT_NEW)
5466 htab->params->no_tls_get_addr_opt = TRUE;
5467
5446cbdf 5468 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5469 {
5470 struct elf_link_hash_entry *opt, *tga;
5471 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5472 FALSE, FALSE, TRUE);
5473 if (opt != NULL
5474 && (opt->root.type == bfd_link_hash_defined
5475 || opt->root.type == bfd_link_hash_defweak))
5476 {
5477 /* If glibc supports an optimized __tls_get_addr call stub,
5478 signalled by the presence of __tls_get_addr_opt, and we'll
5479 be calling __tls_get_addr via a plt call stub, then
5480 make __tls_get_addr point to __tls_get_addr_opt. */
5481 tga = htab->tls_get_addr;
5482 if (htab->elf.dynamic_sections_created
5483 && tga != NULL
5484 && (tga->type == STT_FUNC
5485 || tga->needs_plt)
5486 && !(SYMBOL_CALLS_LOCAL (info, tga)
21d68fcd 5487 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
a7f2871e
AM
5488 {
5489 struct plt_entry *ent;
32af9f6e
AM
5490 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5491 if (ent->plt.refcount > 0)
5492 break;
5493 if (ent != NULL)
a7f2871e
AM
5494 {
5495 tga->root.type = bfd_link_hash_indirect;
5496 tga->root.u.i.link = &opt->root;
5497 ppc_elf_copy_indirect_symbol (info, opt, tga);
b531344c 5498 opt->mark = 1;
a7f2871e
AM
5499 if (opt->dynindx != -1)
5500 {
5501 /* Use __tls_get_addr_opt in dynamic relocations. */
5502 opt->dynindx = -1;
5503 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5504 opt->dynstr_index);
5505 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5506 return FALSE;
5507 }
5508 htab->tls_get_addr = opt;
5509 }
5510 }
5511 }
5512 else
5446cbdf 5513 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5514 }
4a3dc543 5515 if (htab->plt_type == PLT_NEW
ce558b89
AM
5516 && htab->elf.splt != NULL
5517 && htab->elf.splt->output_section != NULL)
d7128ce4 5518 {
ce558b89
AM
5519 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5520 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5521 }
5522
25dbc73a 5523 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5524}
5525
3a71aa26
AM
5526/* Return TRUE iff REL is a branch reloc with a global symbol matching
5527 HASH. */
5528
5529static bfd_boolean
5530branch_reloc_hash_match (const bfd *ibfd,
5531 const Elf_Internal_Rela *rel,
5532 const struct elf_link_hash_entry *hash)
5533{
5534 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5535 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5536 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5537
e054468f 5538 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5539 {
5540 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5541 struct elf_link_hash_entry *h;
5542
5543 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5544 while (h->root.type == bfd_link_hash_indirect
5545 || h->root.type == bfd_link_hash_warning)
5546 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5547 if (h == hash)
5548 return TRUE;
5549 }
5550 return FALSE;
5551}
5552
25dbc73a
AM
5553/* Run through all the TLS relocs looking for optimization
5554 opportunities. */
252b5132 5555
25dbc73a
AM
5556bfd_boolean
5557ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5558 struct bfd_link_info *info)
252b5132 5559{
7fce784e 5560 bfd *ibfd;
25dbc73a
AM
5561 asection *sec;
5562 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5563 int pass;
252b5132 5564
3cbc1e5e 5565 if (!bfd_link_executable (info))
25dbc73a 5566 return TRUE;
252b5132 5567
7619e7c7 5568 htab = ppc_elf_hash_table (info);
663a1470
AM
5569 if (htab == NULL)
5570 return FALSE;
5571
b7fcf6f6
AM
5572 /* Make two passes through the relocs. First time check that tls
5573 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5574 followed by such a call. If they are not, don't do any tls
5575 optimization. On the second pass twiddle tls_mask flags to
5576 notify relocate_section that optimization can be done, and
5577 adjust got and plt refcounts. */
b7fcf6f6 5578 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5579 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6 5580 {
0ffa91dd 5581 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5582 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5583
b7fcf6f6
AM
5584 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5585 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5586 {
5587 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5588 int expecting_tls_get_addr = 0;
252b5132 5589
b7fcf6f6
AM
5590 /* Read the relocations. */
5591 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5592 info->keep_memory);
5593 if (relstart == NULL)
5594 return FALSE;
7619e7c7 5595
b7fcf6f6
AM
5596 relend = relstart + sec->reloc_count;
5597 for (rel = relstart; rel < relend; rel++)
5598 {
5599 enum elf_ppc_reloc_type r_type;
5600 unsigned long r_symndx;
5601 struct elf_link_hash_entry *h = NULL;
bac3c8c5 5602 unsigned char *tls_mask;
37da22e5 5603 unsigned char tls_set, tls_clear;
b7fcf6f6 5604 bfd_boolean is_local;
b7fcf6f6
AM
5605 bfd_signed_vma *got_count;
5606
5607 r_symndx = ELF32_R_SYM (rel->r_info);
5608 if (r_symndx >= symtab_hdr->sh_info)
5609 {
5610 struct elf_link_hash_entry **sym_hashes;
7fce784e 5611
b7fcf6f6
AM
5612 sym_hashes = elf_sym_hashes (ibfd);
5613 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5614 while (h->root.type == bfd_link_hash_indirect
5615 || h->root.type == bfd_link_hash_warning)
5616 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5617 }
7619e7c7 5618
b7fcf6f6
AM
5619 is_local = FALSE;
5620 if (h == NULL
5621 || !h->def_dynamic)
5622 is_local = TRUE;
7619e7c7 5623
b7fcf6f6 5624 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5625 /* If this section has old-style __tls_get_addr calls
5626 without marker relocs, then check that each
5627 __tls_get_addr call reloc is preceded by a reloc
5628 that conceivably belongs to the __tls_get_addr arg
5629 setup insn. If we don't find matching arg setup
5630 relocs, don't do any tls optimization. */
5631 if (pass == 0
5632 && sec->has_tls_get_addr_call
5633 && h != NULL
5634 && h == htab->tls_get_addr
5635 && !expecting_tls_get_addr
5636 && is_branch_reloc (r_type))
5637 {
25f53a85 5638 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5639 "TLS optimization disabled\n",
5640 ibfd, sec, rel->r_offset);
5641 if (elf_section_data (sec)->relocs != relstart)
5642 free (relstart);
5643 return TRUE;
5644 }
5645
5646 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5647 switch (r_type)
5648 {
5649 case R_PPC_GOT_TLSLD16:
5650 case R_PPC_GOT_TLSLD16_LO:
5651 expecting_tls_get_addr = 1;
1a0670f3 5652 /* Fall through. */
b7fcf6f6
AM
5653
5654 case R_PPC_GOT_TLSLD16_HI:
5655 case R_PPC_GOT_TLSLD16_HA:
5656 /* These relocs should never be against a symbol
5657 defined in a shared lib. Leave them alone if
5658 that turns out to be the case. */
5659 if (!is_local)
5660 continue;
5661
5662 /* LD -> LE */
5663 tls_set = 0;
5664 tls_clear = TLS_LD;
5665 break;
5666
5667 case R_PPC_GOT_TLSGD16:
5668 case R_PPC_GOT_TLSGD16_LO:
5669 expecting_tls_get_addr = 1;
1a0670f3 5670 /* Fall through. */
b7fcf6f6
AM
5671
5672 case R_PPC_GOT_TLSGD16_HI:
5673 case R_PPC_GOT_TLSGD16_HA:
5674 if (is_local)
5675 /* GD -> LE */
5676 tls_set = 0;
5677 else
5678 /* GD -> IE */
5679 tls_set = TLS_TLS | TLS_TPRELGD;
5680 tls_clear = TLS_GD;
5681 break;
5682
5683 case R_PPC_GOT_TPREL16:
5684 case R_PPC_GOT_TPREL16_LO:
5685 case R_PPC_GOT_TPREL16_HI:
5686 case R_PPC_GOT_TPREL16_HA:
5687 if (is_local)
5688 {
5689 /* IE -> LE */
5690 tls_set = 0;
5691 tls_clear = TLS_TPREL;
5692 break;
5693 }
5694 else
5695 continue;
5696
32af9f6e
AM
5697 case R_PPC_TLSGD:
5698 case R_PPC_TLSLD:
23cedd1d
AM
5699 if (rel + 1 < relend
5700 && is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
5701 {
5702 if (pass != 0
5703 && ELF32_R_TYPE (rel[1].r_info) != R_PPC_PLTSEQ)
5704 {
5705 r_type = ELF32_R_TYPE (rel[1].r_info);
5706 r_symndx = ELF32_R_SYM (rel[1].r_info);
5707 if (r_symndx >= symtab_hdr->sh_info)
5708 {
5709 struct elf_link_hash_entry **sym_hashes;
5710
5711 sym_hashes = elf_sym_hashes (ibfd);
5712 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5713 while (h->root.type == bfd_link_hash_indirect
5714 || h->root.type == bfd_link_hash_warning)
5715 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5716 if (h != NULL)
5717 {
5718 struct plt_entry *ent = NULL;
5719 bfd_vma addend = 0;
5720
5721 if (bfd_link_pic (info))
5722 addend = rel->r_addend;
5723 ent = find_plt_ent (&h->plt.plist,
5724 got2, addend);
5725 if (ent != NULL
5726 && ent->plt.refcount > 0)
5727 ent->plt.refcount -= 1;
5728 }
5729 }
5730 }
5731 continue;
5732 }
32af9f6e
AM
5733 expecting_tls_get_addr = 2;
5734 tls_set = 0;
5735 tls_clear = 0;
5736 break;
5737
b7fcf6f6 5738 default:
25dbc73a 5739 continue;
b7fcf6f6 5740 }
25dbc73a 5741
b7fcf6f6
AM
5742 if (pass == 0)
5743 {
727fc41e 5744 if (!expecting_tls_get_addr
23cedd1d 5745 || !sec->has_tls_get_addr_call)
b7fcf6f6 5746 continue;
25dbc73a 5747
3a71aa26
AM
5748 if (rel + 1 < relend
5749 && branch_reloc_hash_match (ibfd, rel + 1,
5750 htab->tls_get_addr))
5751 continue;
25dbc73a 5752
b7fcf6f6
AM
5753 /* Uh oh, we didn't find the expected call. We
5754 could just mark this symbol to exclude it
5755 from tls optimization but it's safer to skip
663a1470 5756 the entire optimization. */
25f53a85 5757 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5758 "TLS optimization disabled\n"),
5759 ibfd, sec, rel->r_offset);
5760 if (elf_section_data (sec)->relocs != relstart)
5761 free (relstart);
5762 return TRUE;
b7fcf6f6 5763 }
25dbc73a 5764
b7fcf6f6
AM
5765 if (h != NULL)
5766 {
5767 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5768 got_count = &h->got.refcount;
5769 }
5770 else
5771 {
b7fcf6f6 5772 bfd_signed_vma *lgot_refs;
e054468f 5773 struct plt_entry **local_plt;
bac3c8c5 5774 unsigned char *lgot_masks;
25dbc73a 5775
b7fcf6f6
AM
5776 lgot_refs = elf_local_got_refcounts (ibfd);
5777 if (lgot_refs == NULL)
5778 abort ();
e054468f
AM
5779 local_plt = (struct plt_entry **)
5780 (lgot_refs + symtab_hdr->sh_info);
bac3c8c5
AM
5781 lgot_masks = (unsigned char *)
5782 (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5783 tls_mask = &lgot_masks[r_symndx];
5784 got_count = &lgot_refs[r_symndx];
5785 }
25dbc73a 5786
37da22e5
AM
5787 /* If we don't have old-style __tls_get_addr calls
5788 without TLSGD/TLSLD marker relocs, and we haven't
5789 found a new-style __tls_get_addr call with a
5790 marker for this symbol, then we either have a
5791 broken object file or an -mlongcall style
5792 indirect call to __tls_get_addr without a marker.
5793 Disable optimization in this case. */
5794 if ((tls_clear & (TLS_GD | TLS_LD)) != 0
5795 && !sec->has_tls_get_addr_call
5796 && ((*tls_mask & (TLS_TLS | TLS_MARK))
5797 != (TLS_TLS | TLS_MARK)))
5798 continue;
5799
5800 if (expecting_tls_get_addr)
5801 {
5802 struct plt_entry *ent;
5803 bfd_vma addend = 0;
5804
5805 if (bfd_link_pic (info)
23cedd1d
AM
5806 && (ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24
5807 || ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTCALL))
37da22e5
AM
5808 addend = rel[1].r_addend;
5809 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5810 got2, addend);
5811 if (ent != NULL && ent->plt.refcount > 0)
5812 ent->plt.refcount -= 1;
5813
5814 if (expecting_tls_get_addr == 2)
5815 continue;
5816 }
5817
b7fcf6f6
AM
5818 if (tls_set == 0)
5819 {
5820 /* We managed to get rid of a got entry. */
5821 if (*got_count > 0)
5822 *got_count -= 1;
5823 }
25dbc73a 5824
b7fcf6f6
AM
5825 *tls_mask |= tls_set;
5826 *tls_mask &= ~tls_clear;
5827 }
25dbc73a 5828
b7fcf6f6
AM
5829 if (elf_section_data (sec)->relocs != relstart)
5830 free (relstart);
5831 }
b7fcf6f6 5832 }
9a23f96e 5833 htab->do_tls_opt = 1;
25dbc73a
AM
5834 return TRUE;
5835}
5836\f
98bbb1b8 5837/* Find dynamic relocs for H that apply to read-only sections. */
625af618 5838
98bbb1b8
AM
5839static asection *
5840readonly_dynrelocs (struct elf_link_hash_entry *h)
625af618 5841{
6061a67d 5842 struct elf_dyn_relocs *p;
625af618
AM
5843
5844 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5845 {
5846 asection *s = p->sec->output_section;
5847
98bbb1b8
AM
5848 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5849 return p->sec;
625af618 5850 }
98bbb1b8 5851 return NULL;
625af618
AM
5852}
5853
287c7eaf
AM
5854/* Return true if we have dynamic relocs against H or any of its weak
5855 aliases, that apply to read-only sections. Cannot be used after
5856 size_dynamic_sections. */
5857
5858static bfd_boolean
5859alias_readonly_dynrelocs (struct elf_link_hash_entry *h)
5860{
5861 struct ppc_elf_link_hash_entry *eh = ppc_elf_hash_entry (h);
5862 do
5863 {
5864 if (readonly_dynrelocs (&eh->elf))
5865 return TRUE;
5866 eh = ppc_elf_hash_entry (eh->elf.u.alias);
5867 } while (eh != NULL && &eh->elf != h);
5868
5869 return FALSE;
5870}
5871
5872/* Return whether H has pc-relative dynamic relocs. */
5873
5874static bfd_boolean
5875pc_dynrelocs (struct elf_link_hash_entry *h)
5876{
5877 struct elf_dyn_relocs *p;
5878
5879 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5880 if (p->pc_count != 0)
5881 return TRUE;
5882 return FALSE;
5883}
5884
25dbc73a
AM
5885/* Adjust a symbol defined by a dynamic object and referenced by a
5886 regular object. The current definition is in some section of the
5887 dynamic object, but we're not including those sections. We have to
5888 change the definition to something the rest of the link can
5889 understand. */
7fce784e 5890
25dbc73a
AM
5891static bfd_boolean
5892ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5893 struct elf_link_hash_entry *h)
5894{
5895 struct ppc_elf_link_hash_table *htab;
5896 asection *s;
7fce784e 5897
25dbc73a
AM
5898#ifdef DEBUG
5899 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5900 h->root.root.string);
5901#endif
252b5132 5902
25dbc73a
AM
5903 /* Make sure we know what is going on here. */
5904 htab = ppc_elf_hash_table (info);
5905 BFD_ASSERT (htab->elf.dynobj != NULL
5906 && (h->needs_plt
91e21fb7 5907 || h->type == STT_GNU_IFUNC
60d67dc8 5908 || h->is_weakalias
25dbc73a
AM
5909 || (h->def_dynamic
5910 && h->ref_regular
5911 && !h->def_regular)));
252b5132 5912
25dbc73a
AM
5913 /* Deal with function syms. */
5914 if (h->type == STT_FUNC
e054468f 5915 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5916 || h->needs_plt)
5917 {
529fe20e
AM
5918 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, h)
5919 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
287c7eaf
AM
5920 /* Discard dyn_relocs when non-pic if we've decided that a
5921 function symbol is local. */
5922 if (!bfd_link_pic (info) && local)
5923 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
529fe20e 5924
25dbc73a
AM
5925 /* Clear procedure linkage table information for any symbol that
5926 won't need a .plt entry. */
a6aa5195
AM
5927 struct plt_entry *ent;
5928 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5929 if (ent->plt.refcount > 0)
5930 break;
5931 if (ent == NULL
2d7ad24e
AM
5932 || (h->type != STT_GNU_IFUNC
5933 && local
3e04d765
AM
5934 && (htab->can_convert_all_inline_plt
5935 || (ppc_elf_hash_entry (h)->tls_mask
5936 & (TLS_TLS | PLT_KEEP)) != PLT_KEEP)))
252b5132 5937 {
25dbc73a 5938 /* A PLT entry is not required/allowed when:
252b5132 5939
25dbc73a
AM
5940 1. We are not using ld.so; because then the PLT entry
5941 can't be set up, so we can't use one. In this case,
5942 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5943
25dbc73a
AM
5944 2. GC has rendered the entry unused.
5945
5946 3. We know for certain that a call to this symbol
5947 will go to this object, or will remain undefined. */
a6aa5195 5948 h->plt.plist = NULL;
25dbc73a 5949 h->needs_plt = 0;
d1eca1e4 5950 h->pointer_equality_needed = 0;
25dbc73a 5951 }
625af618
AM
5952 else
5953 {
d1eca1e4
AM
5954 /* Taking a function's address in a read/write section
5955 doesn't require us to define the function symbol in the
1009ef28 5956 executable on a plt call stub. A dynamic reloc can
f0158f44
AM
5957 be used instead, giving better runtime performance.
5958 (Calls via that function pointer don't need to bounce
5959 through the plt call stub.) Similarly, use a dynamic
5960 reloc for a weak reference when possible, allowing the
5961 resolution of the symbol to be set at load time rather
5962 than link time. */
5963 if ((h->pointer_equality_needed
3988aed5
AM
5964 || (h->non_got_ref
5965 && !h->ref_regular_nonweak
5966 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1009ef28
AM
5967 && !htab->is_vxworks
5968 && !ppc_elf_hash_entry (h)->has_sda_refs
98bbb1b8 5969 && !readonly_dynrelocs (h))
d1eca1e4
AM
5970 {
5971 h->pointer_equality_needed = 0;
04383fd1
AM
5972 /* If we haven't seen a branch reloc and the symbol
5973 isn't an ifunc then we don't need a plt entry. */
5974 if (!h->needs_plt && h->type != STT_GNU_IFUNC)
3988aed5 5975 h->plt.plist = NULL;
d1eca1e4 5976 }
287c7eaf 5977 else if (!bfd_link_pic (info))
529fe20e
AM
5978 /* We are going to be defining the function symbol on the
5979 plt stub, so no dyn_relocs needed when non-pic. */
287c7eaf 5980 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
625af618 5981 }
d3e454b9 5982 h->protected_def = 0;
3988aed5 5983 /* Function symbols can't have copy relocs. */
25dbc73a 5984 return TRUE;
252b5132 5985 }
25dbc73a 5986 else
a6aa5195 5987 h->plt.plist = NULL;
252b5132 5988
25dbc73a
AM
5989 /* If this is a weak symbol, and there is a real definition, the
5990 processor independent code will have arranged for us to see the
5991 real definition first, and we can just use the same value. */
60d67dc8 5992 if (h->is_weakalias)
252b5132 5993 {
60d67dc8
AM
5994 struct elf_link_hash_entry *def = weakdef (h);
5995 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5996 h->root.u.def.section = def->root.u.def.section;
5997 h->root.u.def.value = def->root.u.def.value;
4a7e5234
AM
5998 if (def->root.u.def.section == htab->elf.sdynbss
5999 || def->root.u.def.section == htab->elf.sdynrelro
6000 || def->root.u.def.section == htab->dynsbss)
6001 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
25dbc73a
AM
6002 return TRUE;
6003 }
dc810e39 6004
25dbc73a
AM
6005 /* This is a reference to a symbol defined by a dynamic object which
6006 is not a function. */
252b5132 6007
25dbc73a
AM
6008 /* If we are creating a shared library, we must presume that the
6009 only references to the symbol are via the global offset table.
6010 For such cases we need not do anything here; the relocations will
6011 be handled correctly by relocate_section. */
0e1862bb 6012 if (bfd_link_pic (info))
d3e454b9
AM
6013 {
6014 h->protected_def = 0;
6015 return TRUE;
6016 }
252b5132 6017
25dbc73a
AM
6018 /* If there are no references to this symbol that do not use the
6019 GOT, we don't need to generate a copy reloc. */
6020 if (!h->non_got_ref)
d3e454b9
AM
6021 {
6022 h->protected_def = 0;
6023 return TRUE;
6024 }
6025
6026 /* Protected variables do not work with .dynbss. The copy in
6027 .dynbss won't be used by the shared library with the protected
6028 definition for the variable. Editing to PIC, or text relocations
6029 are preferable to an incorrect program. */
6030 if (h->protected_def)
6031 {
6032 if (ELIMINATE_COPY_RELOCS
6033 && ppc_elf_hash_entry (h)->has_addr16_ha
6034 && ppc_elf_hash_entry (h)->has_addr16_lo
6035 && htab->params->pic_fixup == 0
6036 && info->disable_target_specific_optimizations <= 1)
6037 htab->params->pic_fixup = 1;
d3e454b9
AM
6038 return TRUE;
6039 }
25dbc73a 6040
a127494f
AM
6041 /* If -z nocopyreloc was given, we won't generate them either. */
6042 if (info->nocopyreloc)
529fe20e 6043 return TRUE;
a127494f 6044
dce2246a 6045 /* If we don't find any dynamic relocs in read-only sections, then
cfd2c773
NS
6046 we'll be keeping the dynamic relocs and avoiding the copy reloc.
6047 We can't do this if there are any small data relocations. This
6048 doesn't work on VxWorks, where we can not have dynamic
6049 relocations (other than copy and jump slot relocations) in an
6050 executable. */
4dc4a9a5 6051 if (ELIMINATE_COPY_RELOCS
cfd2c773 6052 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
6053 && !htab->is_vxworks
6054 && !h->def_regular
287c7eaf 6055 && !alias_readonly_dynrelocs (h))
529fe20e 6056 return TRUE;
252b5132 6057
25dbc73a
AM
6058 /* We must allocate the symbol in our .dynbss section, which will
6059 become part of the .bss section of the executable. There will be
6060 an entry for this symbol in the .dynsym section. The dynamic
6061 object will contain position independent code, so all references
6062 from the dynamic object to this symbol will go through the global
6063 offset table. The dynamic linker will use the .dynsym entry to
6064 determine the address it must put in the global offset table, so
6065 both the dynamic object and the regular object will refer to the
6066 same memory location for the variable.
6067
4dc4a9a5
DJ
6068 Of course, if the symbol is referenced using SDAREL relocs, we
6069 must instead allocate it in .sbss. */
4dc4a9a5 6070 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 6071 s = htab->dynsbss;
5474d94f
AM
6072 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
6073 s = htab->elf.sdynrelro;
25dbc73a 6074 else
9d19e4fd 6075 s = htab->elf.sdynbss;
25dbc73a
AM
6076 BFD_ASSERT (s != NULL);
6077
1d7e9d18 6078 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
6079 {
6080 asection *srel;
6081
4a7e5234
AM
6082 /* We must generate a R_PPC_COPY reloc to tell the dynamic
6083 linker to copy the initial value out of the dynamic object
6084 and into the runtime process image. */
4dc4a9a5 6085 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 6086 srel = htab->relsbss;
5474d94f
AM
6087 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
6088 srel = htab->elf.sreldynrelro;
25dbc73a 6089 else
9d19e4fd 6090 srel = htab->elf.srelbss;
25dbc73a
AM
6091 BFD_ASSERT (srel != NULL);
6092 srel->size += sizeof (Elf32_External_Rela);
6093 h->needs_copy = 1;
6094 }
7619e7c7 6095
529fe20e 6096 /* We no longer want dyn_relocs. */
287c7eaf 6097 ppc_elf_hash_entry (h)->dyn_relocs = NULL;
6cabe1ea 6098 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
6099}
6100\f
ac39eb42
AM
6101/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
6102 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
6103 specifying the addend on the plt relocation. For -fpic code, the sym
6104 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
6105 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
6106
6107static bfd_boolean
6108add_stub_sym (struct plt_entry *ent,
6109 struct elf_link_hash_entry *h,
ac39eb42 6110 struct bfd_link_info *info)
0ba07910
AM
6111{
6112 struct elf_link_hash_entry *sh;
6113 size_t len1, len2, len3;
6114 char *name;
ac39eb42
AM
6115 const char *stub;
6116 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6117
0e1862bb 6118 if (bfd_link_pic (info))
ac39eb42
AM
6119 stub = ".plt_pic32.";
6120 else
6121 stub = ".plt_call32.";
0ba07910
AM
6122
6123 len1 = strlen (h->root.root.string);
ac39eb42 6124 len2 = strlen (stub);
0ba07910
AM
6125 len3 = 0;
6126 if (ent->sec)
6127 len3 = strlen (ent->sec->name);
ac39eb42 6128 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
6129 if (name == NULL)
6130 return FALSE;
6131 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
6132 if (ent->sec)
6133 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
6134 memcpy (name + 8 + len3, stub, len2);
6135 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
6136 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
6137 if (sh == NULL)
6138 return FALSE;
6139 if (sh->root.type == bfd_link_hash_new)
6140 {
6141 sh->root.type = bfd_link_hash_defined;
6142 sh->root.u.def.section = htab->glink;
6143 sh->root.u.def.value = ent->glink_offset;
6144 sh->ref_regular = 1;
6145 sh->def_regular = 1;
6146 sh->ref_regular_nonweak = 1;
6147 sh->forced_local = 1;
6148 sh->non_elf = 0;
2ec55de3 6149 sh->root.linker_def = 1;
0ba07910
AM
6150 }
6151 return TRUE;
6152}
6153
3b36f7e6
AM
6154/* Allocate NEED contiguous space in .got, and return the offset.
6155 Handles allocation of the got header when crossing 32k. */
6156
6157static bfd_vma
6158allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
6159{
6160 bfd_vma where;
4a3dc543 6161 unsigned int max_before_header;
3b36f7e6 6162
4a3dc543 6163 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 6164 {
ce558b89
AM
6165 where = htab->elf.sgot->size;
6166 htab->elf.sgot->size += need;
9d8504b1 6167 }
3b36f7e6
AM
6168 else
6169 {
4a3dc543
RS
6170 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
6171 if (need <= htab->got_gap)
3b36f7e6 6172 {
4a3dc543
RS
6173 where = max_before_header - htab->got_gap;
6174 htab->got_gap -= need;
6175 }
6176 else
6177 {
ce558b89
AM
6178 if (htab->elf.sgot->size + need > max_before_header
6179 && htab->elf.sgot->size <= max_before_header)
4a3dc543 6180 {
ce558b89
AM
6181 htab->got_gap = max_before_header - htab->elf.sgot->size;
6182 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 6183 }
ce558b89
AM
6184 where = htab->elf.sgot->size;
6185 htab->elf.sgot->size += need;
3b36f7e6 6186 }
3b36f7e6
AM
6187 }
6188 return where;
6189}
6190
f15d0b54
AM
6191/* Calculate size of GOT entries for symbol given its TLS_MASK.
6192 TLS_LD is excluded because those go in a special GOT slot. */
6193
6194static inline unsigned int
6195got_entries_needed (int tls_mask)
6196{
6197 unsigned int need;
6198 if ((tls_mask & TLS_TLS) == 0)
6199 need = 4;
6200 else
6201 {
6202 need = 0;
6203 if ((tls_mask & TLS_GD) != 0)
6204 need += 8;
6205 if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6206 need += 4;
6207 if ((tls_mask & TLS_DTPREL) != 0)
6208 need += 4;
6209 }
6210 return need;
6211}
6212
6213/* Calculate size of relocs needed for symbol given its TLS_MASK and
6214 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated at
6215 link time. */
6216
6217static inline unsigned int
6218got_relocs_needed (int tls_mask, unsigned int need, bfd_boolean known)
6219{
6220 /* All the entries we allocated need relocs.
6221 Except IE in executable with a local symbol. We could also omit
6222 the DTPREL reloc on the second word of a GD entry under the same
6223 condition as that for IE, but ld.so needs to differentiate
6224 LD and GD entries. */
37da22e5
AM
6225 if (known && (tls_mask & TLS_TLS) != 0
6226 && (tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
f15d0b54
AM
6227 need -= 4;
6228 return need * sizeof (Elf32_External_Rela) / 4;
6229}
6230
46434633 6231/* If H is undefined, make it dynamic if that makes sense. */
f0158f44
AM
6232
6233static bfd_boolean
46434633
AM
6234ensure_undef_dynamic (struct bfd_link_info *info,
6235 struct elf_link_hash_entry *h)
f0158f44
AM
6236{
6237 struct elf_link_hash_table *htab = elf_hash_table (info);
6238
6239 if (htab->dynamic_sections_created
46434633
AM
6240 && ((info->dynamic_undefined_weak != 0
6241 && h->root.type == bfd_link_hash_undefweak)
6242 || h->root.type == bfd_link_hash_undefined)
f0158f44
AM
6243 && h->dynindx == -1
6244 && !h->forced_local
6245 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
6246 return bfd_elf_link_record_dynamic_symbol (info, h);
6247 return TRUE;
6248}
6249
25dbc73a 6250/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 6251
b34976b6 6252static bfd_boolean
25dbc73a 6253allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 6254{
25dbc73a
AM
6255 struct bfd_link_info *info = inf;
6256 struct ppc_elf_link_hash_entry *eh;
7619e7c7 6257 struct ppc_elf_link_hash_table *htab;
6061a67d 6258 struct elf_dyn_relocs *p;
f0158f44 6259 bfd_boolean dyn;
252b5132 6260
25dbc73a 6261 if (h->root.type == bfd_link_hash_indirect)
b34976b6 6262 return TRUE;
252b5132 6263
7619e7c7 6264 htab = ppc_elf_hash_table (info);
25dbc73a 6265 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
6266 if (eh->elf.got.refcount > 0
6267 || (ELIMINATE_COPY_RELOCS
6268 && !eh->elf.def_regular
6269 && eh->elf.protected_def
6270 && eh->has_addr16_ha
6271 && eh->has_addr16_lo
6272 && htab->params->pic_fixup > 0))
25dbc73a 6273 {
d6e14abc
AM
6274 unsigned int need;
6275
46434633
AM
6276 /* Make sure this symbol is output as a dynamic symbol. */
6277 if (!ensure_undef_dynamic (info, &eh->elf))
f0158f44 6278 return FALSE;
252b5132 6279
d6e14abc 6280 need = 0;
37da22e5 6281 if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
25dbc73a 6282 {
f15d0b54
AM
6283 if (!eh->elf.def_dynamic)
6284 /* We'll just use htab->tlsld_got.offset. This should
6285 always be the case. It's a little odd if we have
6286 a local dynamic reloc against a non-local symbol. */
6287 htab->tlsld_got.refcount += 1;
6288 else
d6e14abc 6289 need += 8;
d6e14abc 6290 }
f15d0b54 6291 need += got_entries_needed (eh->tls_mask);
d6e14abc
AM
6292 if (need == 0)
6293 eh->elf.got.offset = (bfd_vma) -1;
6294 else
6295 {
3b36f7e6 6296 eh->elf.got.offset = allocate_got (htab, need);
0e1862bb 6297 if ((bfd_link_pic (info)
f0158f44
AM
6298 || (htab->elf.dynamic_sections_created
6299 && eh->elf.dynindx != -1
6300 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
21d68fcd 6301 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
252b5132 6302 {
f15d0b54
AM
6303 asection *rsec;
6304 bfd_boolean tprel_known = (bfd_link_executable (info)
6305 && SYMBOL_REFERENCES_LOCAL (info,
6306 &eh->elf));
6307
6308 need = got_relocs_needed (eh->tls_mask, need, tprel_known);
37da22e5
AM
6309 if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD)
6310 && eh->elf.def_dynamic)
f15d0b54
AM
6311 need -= sizeof (Elf32_External_Rela);
6312 rsec = htab->elf.srelgot;
0bed072f 6313 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6314 rsec = htab->elf.irelplt;
f15d0b54 6315 rsec->size += need;
252b5132 6316 }
25dbc73a
AM
6317 }
6318 }
6319 else
6320 eh->elf.got.offset = (bfd_vma) -1;
252b5132 6321
954b63d4
AM
6322 /* If no dynamic sections we can't have dynamic relocs, except for
6323 IFUNCs which are handled even in static executables. */
f0158f44
AM
6324 if (!htab->elf.dynamic_sections_created
6325 && h->type != STT_GNU_IFUNC)
6326 eh->dyn_relocs = NULL;
6327
529fe20e
AM
6328 /* Discard relocs on undefined symbols that must be local. */
6329 else if (h->root.type == bfd_link_hash_undefined
6330 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6331 eh->dyn_relocs = NULL;
6332
6333 /* Also discard relocs on undefined weak syms with non-default
6334 visibility, or when dynamic_undefined_weak says so. */
6335 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
6336 eh->dyn_relocs = NULL;
6337
f0158f44 6338 if (eh->dyn_relocs == NULL)
287c7eaf 6339 ;
252b5132 6340
25dbc73a
AM
6341 /* In the shared -Bsymbolic case, discard space allocated for
6342 dynamic pc-relative relocs against symbols which turn out to be
6343 defined in regular objects. For the normal shared case, discard
6344 space for relocs that have become local due to symbol visibility
6345 changes. */
f0158f44 6346 else if (bfd_link_pic (info))
25dbc73a
AM
6347 {
6348 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 6349 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
6350 generated via assembly. We want calls to protected symbols to
6351 resolve directly to the function rather than going via the plt.
6352 If people want function pointer comparisons to work as expected
6353 then they should avoid writing weird assembly. */
529fe20e 6354 if (SYMBOL_CALLS_LOCAL (info, h))
25dbc73a 6355 {
6061a67d 6356 struct elf_dyn_relocs **pp;
25dbc73a
AM
6357
6358 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 6359 {
25dbc73a
AM
6360 p->count -= p->pc_count;
6361 p->pc_count = 0;
6362 if (p->count == 0)
6363 *pp = p->next;
6364 else
6365 pp = &p->next;
252b5132 6366 }
25dbc73a 6367 }
252b5132 6368
3348747a
NS
6369 if (htab->is_vxworks)
6370 {
6061a67d 6371 struct elf_dyn_relocs **pp;
3348747a
NS
6372
6373 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6374 {
6375 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6376 *pp = p->next;
6377 else
6378 pp = &p->next;
6379 }
6380 }
6381
954b63d4 6382 if (eh->dyn_relocs != NULL)
25dbc73a 6383 {
46434633
AM
6384 /* Make sure this symbol is output as a dynamic symbol. */
6385 if (!ensure_undef_dynamic (info, h))
f0158f44 6386 return FALSE;
25dbc73a
AM
6387 }
6388 }
6389 else if (ELIMINATE_COPY_RELOCS)
6390 {
f0158f44 6391 /* For the non-pic case, discard space for relocs against
25dbc73a
AM
6392 symbols which turn out to need copy relocs or are not
6393 dynamic. */
529fe20e 6394 if (h->dynamic_adjusted
d3e454b9 6395 && !h->def_regular
529fe20e 6396 && !ELF_COMMON_DEF_P (h)
d3e454b9
AM
6397 && !(h->protected_def
6398 && eh->has_addr16_ha
6399 && eh->has_addr16_lo
6400 && htab->params->pic_fixup > 0))
25dbc73a 6401 {
46434633
AM
6402 /* Make sure this symbol is output as a dynamic symbol. */
6403 if (!ensure_undef_dynamic (info, h))
f0158f44 6404 return FALSE;
7619e7c7 6405
f0158f44 6406 if (h->dynindx == -1)
287c7eaf 6407 eh->dyn_relocs = NULL;
25dbc73a 6408 }
f0158f44 6409 else
287c7eaf 6410 eh->dyn_relocs = NULL;
25dbc73a 6411 }
252b5132 6412
f0158f44 6413 /* Allocate space. */
25dbc73a
AM
6414 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6415 {
6416 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6417 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6418 sreloc = htab->elf.irelplt;
25dbc73a
AM
6419 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6420 }
252b5132 6421
2d7ad24e
AM
6422 /* Handle PLT relocs. Done last, after dynindx has settled.
6423 We might need a PLT entry when the symbol
6424 a) is dynamic, or
6425 b) is an ifunc, or
6426 c) has plt16 relocs and has been processed by adjust_dynamic_symbol, or
6427 d) has plt16 relocs and we are linking statically. */
f0158f44 6428 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
2d7ad24e
AM
6429 if (dyn
6430 || h->type == STT_GNU_IFUNC
6431 || (h->needs_plt && h->dynamic_adjusted)
6432 || (h->needs_plt
6433 && h->def_regular
6434 && !htab->elf.dynamic_sections_created
3e04d765 6435 && !htab->can_convert_all_inline_plt
2d7ad24e
AM
6436 && (ppc_elf_hash_entry (h)->tls_mask
6437 & (TLS_TLS | PLT_KEEP)) == PLT_KEEP))
f0158f44
AM
6438 {
6439 struct plt_entry *ent;
6440 bfd_boolean doneone = FALSE;
2d7ad24e 6441 bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
f0158f44
AM
6442
6443 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6444 if (ent->plt.refcount > 0)
6445 {
6446 asection *s = htab->elf.splt;
6447
6448 if (!dyn)
2d7ad24e
AM
6449 {
6450 if (h->type == STT_GNU_IFUNC)
6451 s = htab->elf.iplt;
6452 else
6453 s = htab->pltlocal;
6454 }
f0158f44
AM
6455
6456 if (htab->plt_type == PLT_NEW || !dyn)
6457 {
6458 if (!doneone)
6459 {
6460 plt_offset = s->size;
6461 s->size += 4;
6462 }
6463 ent->plt.offset = plt_offset;
6464
2d7ad24e
AM
6465 if (s == htab->pltlocal)
6466 ent->glink_offset = glink_offset;
6467 else
f0158f44 6468 {
2d7ad24e
AM
6469 s = htab->glink;
6470 if (!doneone || bfd_link_pic (info))
6471 {
6472 glink_offset = s->size;
6473 s->size += GLINK_ENTRY_SIZE (htab, h);
6474 }
6475 if (!doneone
6476 && !bfd_link_pic (info)
6477 && h->def_dynamic
6478 && !h->def_regular)
6479 {
6480 h->root.u.def.section = s;
6481 h->root.u.def.value = glink_offset;
6482 }
6483 ent->glink_offset = glink_offset;
f0158f44 6484
2d7ad24e
AM
6485 if (htab->params->emit_stub_syms
6486 && !add_stub_sym (ent, h, info))
6487 return FALSE;
6488 }
f0158f44
AM
6489 }
6490 else
6491 {
6492 if (!doneone)
6493 {
6494 /* If this is the first .plt entry, make room
6495 for the special first entry. */
6496 if (s->size == 0)
6497 s->size += htab->plt_initial_entry_size;
6498
6499 /* The PowerPC PLT is actually composed of two
6500 parts, the first part is 2 words (for a load
6501 and a jump), and then there is a remaining
6502 word available at the end. */
6503 plt_offset = (htab->plt_initial_entry_size
6504 + (htab->plt_slot_size
6505 * ((s->size
6506 - htab->plt_initial_entry_size)
6507 / htab->plt_entry_size)));
6508
6509 /* If this symbol is not defined in a regular
6510 file, and we are not generating a shared
6511 library, then set the symbol to this location
6512 in the .plt. This is to avoid text
6513 relocations, and is required to make
6514 function pointers compare as equal between
6515 the normal executable and the shared library. */
6516 if (! bfd_link_pic (info)
6517 && h->def_dynamic
6518 && !h->def_regular)
6519 {
6520 h->root.u.def.section = s;
6521 h->root.u.def.value = plt_offset;
6522 }
6523
6524 /* Make room for this entry. */
6525 s->size += htab->plt_entry_size;
6526 /* After the 8192nd entry, room for two entries
6527 is allocated. */
6528 if (htab->plt_type == PLT_OLD
6529 && (s->size - htab->plt_initial_entry_size)
6530 / htab->plt_entry_size
6531 > PLT_NUM_SINGLE_ENTRIES)
6532 s->size += htab->plt_entry_size;
6533 }
6534 ent->plt.offset = plt_offset;
6535 }
6536
6537 /* We also need to make an entry in the .rela.plt section. */
6538 if (!doneone)
6539 {
6540 if (!dyn)
2d7ad24e
AM
6541 {
6542 if (h->type == STT_GNU_IFUNC)
6543 {
6544 s = htab->elf.irelplt;
6545 s->size += sizeof (Elf32_External_Rela);
6546 }
6547 else if (bfd_link_pic (info))
6548 {
6549 s = htab->relpltlocal;
6550 s->size += sizeof (Elf32_External_Rela);
6551 }
6552 }
f0158f44
AM
6553 else
6554 {
6555 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6556
6557 if (htab->plt_type == PLT_VXWORKS)
6558 {
6559 /* Allocate space for the unloaded relocations. */
6560 if (!bfd_link_pic (info)
6561 && htab->elf.dynamic_sections_created)
6562 {
6563 if (ent->plt.offset
6564 == (bfd_vma) htab->plt_initial_entry_size)
6565 {
6566 htab->srelplt2->size
6567 += (sizeof (Elf32_External_Rela)
6568 * VXWORKS_PLTRESOLVE_RELOCS);
6569 }
6570
6571 htab->srelplt2->size
6572 += (sizeof (Elf32_External_Rela)
6573 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6574 }
6575
6576 /* Every PLT entry has an associated GOT entry in
6577 .got.plt. */
6578 htab->elf.sgotplt->size += 4;
6579 }
6580 }
6581 doneone = TRUE;
6582 }
6583 }
6584 else
6585 ent->plt.offset = (bfd_vma) -1;
6586
6587 if (!doneone)
6588 {
6589 h->plt.plist = NULL;
6590 h->needs_plt = 0;
6591 }
6592 }
6593 else
6594 {
6595 h->plt.plist = NULL;
6596 h->needs_plt = 0;
6597 }
6598
25dbc73a
AM
6599 return TRUE;
6600}
7619e7c7 6601
625af618
AM
6602/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6603 read-only sections. */
7619e7c7 6604
25dbc73a 6605static bfd_boolean
0caf6c82 6606maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
25dbc73a 6607{
98bbb1b8 6608 asection *sec;
0caf6c82 6609
25dbc73a
AM
6610 if (h->root.type == bfd_link_hash_indirect)
6611 return TRUE;
252b5132 6612
98bbb1b8
AM
6613 sec = readonly_dynrelocs (h);
6614 if (sec != NULL)
25dbc73a 6615 {
98bbb1b8
AM
6616 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
6617
0caf6c82 6618 info->flags |= DF_TEXTREL;
98bbb1b8 6619 info->callbacks->minfo
c1c8c1ef 6620 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 6621 sec->owner, h->root.root.string, sec);
ee05f2fe 6622
625af618
AM
6623 /* Not an error, just cut short the traversal. */
6624 return FALSE;
25dbc73a
AM
6625 }
6626 return TRUE;
6627}
6628
6177242a
AM
6629static const unsigned char glink_eh_frame_cie[] =
6630{
6631 0, 0, 0, 16, /* length. */
6632 0, 0, 0, 0, /* id. */
6633 1, /* CIE version. */
6634 'z', 'R', 0, /* Augmentation string. */
6635 4, /* Code alignment. */
6636 0x7c, /* Data alignment. */
6637 65, /* RA reg. */
6638 1, /* Augmentation size. */
6639 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6640 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6641};
6642
25dbc73a
AM
6643/* Set the sizes of the dynamic sections. */
6644
6645static bfd_boolean
93d1b056 6646ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6647 struct bfd_link_info *info)
6648{
6649 struct ppc_elf_link_hash_table *htab;
6650 asection *s;
6651 bfd_boolean relocs;
6652 bfd *ibfd;
7fce784e 6653
252b5132 6654#ifdef DEBUG
25dbc73a 6655 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6656#endif
252b5132 6657
25dbc73a
AM
6658 htab = ppc_elf_hash_table (info);
6659 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6660
25dbc73a
AM
6661 if (elf_hash_table (info)->dynamic_sections_created)
6662 {
6663 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6664 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6665 {
3d4d4302 6666 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6667 BFD_ASSERT (s != NULL);
6668 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6669 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6670 }
6671 }
252b5132 6672
4a3dc543 6673 if (htab->plt_type == PLT_OLD)
d7128ce4 6674 htab->got_header_size = 16;
4a3dc543 6675 else if (htab->plt_type == PLT_NEW)
d7128ce4 6676 htab->got_header_size = 12;
252b5132 6677
25dbc73a
AM
6678 /* Set up .got offsets for local syms, and space for local dynamic
6679 relocs. */
c72f2fb2 6680 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6681 {
6682 bfd_signed_vma *local_got;
6683 bfd_signed_vma *end_local_got;
e054468f
AM
6684 struct plt_entry **local_plt;
6685 struct plt_entry **end_local_plt;
25dbc73a
AM
6686 char *lgot_masks;
6687 bfd_size_type locsymcount;
6688 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6689
0c8d6e5c 6690 if (!is_ppc_elf (ibfd))
25dbc73a 6691 continue;
7fce784e 6692
25dbc73a
AM
6693 for (s = ibfd->sections; s != NULL; s = s->next)
6694 {
f95f8542 6695 struct ppc_dyn_relocs *p;
252b5132 6696
f95f8542 6697 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6698 elf_section_data (s)->local_dynrel);
6699 p != NULL;
6700 p = p->next)
6701 {
6702 if (!bfd_is_abs_section (p->sec)
6703 && bfd_is_abs_section (p->sec->output_section))
6704 {
6705 /* Input section has been discarded, either because
6706 it is a copy of a linkonce section or due to
6707 linker script /DISCARD/, so we'll be discarding
6708 the relocs too. */
7fce784e 6709 }
3348747a
NS
6710 else if (htab->is_vxworks
6711 && strcmp (p->sec->output_section->name,
6712 ".tls_vars") == 0)
6713 {
6714 /* Relocations in vxworks .tls_vars sections are
6715 handled specially by the loader. */
6716 }
25dbc73a 6717 else if (p->count != 0)
7fce784e 6718 {
25f23106 6719 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6720 if (p->ifunc)
ce558b89 6721 sreloc = htab->elf.irelplt;
25f23106 6722 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6723 if ((p->sec->output_section->flags
6724 & (SEC_READONLY | SEC_ALLOC))
6725 == (SEC_READONLY | SEC_ALLOC))
0caf6c82
L
6726 {
6727 info->flags |= DF_TEXTREL;
871b3ab2 6728 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
0caf6c82
L
6729 p->sec->owner, p->sec);
6730 }
7fce784e 6731 }
252b5132 6732 }
252b5132 6733 }
252b5132 6734
25dbc73a
AM
6735 local_got = elf_local_got_refcounts (ibfd);
6736 if (!local_got)
6737 continue;
252b5132 6738
0ffa91dd 6739 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6740 locsymcount = symtab_hdr->sh_info;
6741 end_local_got = local_got + locsymcount;
e054468f
AM
6742 local_plt = (struct plt_entry **) end_local_got;
6743 end_local_plt = local_plt + locsymcount;
6744 lgot_masks = (char *) end_local_plt;
91d6fa6a 6745
25dbc73a
AM
6746 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6747 if (*local_got > 0)
6748 {
f15d0b54 6749 unsigned int need;
37da22e5 6750 if ((*lgot_masks & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
f15d0b54
AM
6751 htab->tlsld_got.refcount += 1;
6752 need = got_entries_needed (*lgot_masks);
d6e14abc
AM
6753 if (need == 0)
6754 *local_got = (bfd_vma) -1;
25dbc73a
AM
6755 else
6756 {
3b36f7e6 6757 *local_got = allocate_got (htab, need);
0e1862bb 6758 if (bfd_link_pic (info))
0bed072f 6759 {
f15d0b54
AM
6760 asection *srel;
6761 bfd_boolean tprel_known = bfd_link_executable (info);
6762
6763 need = got_relocs_needed (*lgot_masks, need, tprel_known);
6764 srel = htab->elf.srelgot;
37da22e5 6765 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
ce558b89 6766 srel = htab->elf.irelplt;
f15d0b54 6767 srel->size += need;
0bed072f 6768 }
25dbc73a
AM
6769 }
6770 }
6771 else
6772 *local_got = (bfd_vma) -1;
e054468f
AM
6773
6774 if (htab->is_vxworks)
6775 continue;
6776
6777 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
2d7ad24e
AM
6778 lgot_masks = (char *) end_local_plt;
6779 for (; local_plt < end_local_plt; ++local_plt, ++lgot_masks)
e054468f
AM
6780 {
6781 struct plt_entry *ent;
6782 bfd_boolean doneone = FALSE;
2d7ad24e 6783 bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
e054468f
AM
6784
6785 for (ent = *local_plt; ent != NULL; ent = ent->next)
6786 if (ent->plt.refcount > 0)
6787 {
2d7ad24e
AM
6788 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
6789 s = htab->elf.iplt;
3e04d765
AM
6790 else if (htab->can_convert_all_inline_plt
6791 || (*lgot_masks & (TLS_TLS | PLT_KEEP)) != PLT_KEEP)
2d7ad24e
AM
6792 {
6793 ent->plt.offset = (bfd_vma) -1;
6794 continue;
6795 }
6796 else
6797 s = htab->pltlocal;
e054468f
AM
6798
6799 if (!doneone)
6800 {
6801 plt_offset = s->size;
6802 s->size += 4;
6803 }
6804 ent->plt.offset = plt_offset;
6805
2d7ad24e 6806 if (s != htab->pltlocal && (!doneone || bfd_link_pic (info)))
e054468f 6807 {
2d7ad24e 6808 s = htab->glink;
e054468f 6809 glink_offset = s->size;
9e390558 6810 s->size += GLINK_ENTRY_SIZE (htab, NULL);
e054468f
AM
6811 }
6812 ent->glink_offset = glink_offset;
6813
6814 if (!doneone)
6815 {
2d7ad24e
AM
6816 if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
6817 {
6818 s = htab->elf.irelplt;
6819 s->size += sizeof (Elf32_External_Rela);
6820 }
6821 else if (bfd_link_pic (info))
6822 {
6823 s = htab->relpltlocal;
6824 s->size += sizeof (Elf32_External_Rela);
6825 }
e054468f
AM
6826 doneone = TRUE;
6827 }
6828 }
6829 else
6830 ent->plt.offset = (bfd_vma) -1;
6831 }
25dbc73a 6832 }
252b5132 6833
b7fcf6f6
AM
6834 /* Allocate space for global sym dynamic relocs. */
6835 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6836
3b36f7e6
AM
6837 if (htab->tlsld_got.refcount > 0)
6838 {
6839 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6840 if (bfd_link_pic (info))
ce558b89 6841 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6842 }
6843 else
6844 htab->tlsld_got.offset = (bfd_vma) -1;
6845
ce558b89 6846 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6847 {
6848 unsigned int g_o_t = 32768;
6849
4d962050
AM
6850 /* If we haven't allocated the header, do so now. When we get here,
6851 for old plt/got the got size will be 0 to 32764 (not allocated),
6852 or 32780 to 65536 (header allocated). For new plt/got, the
6853 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6854 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6855 {
ce558b89 6856 g_o_t = htab->elf.sgot->size;
4a3dc543 6857 if (htab->plt_type == PLT_OLD)
4d962050 6858 g_o_t += 4;
ce558b89 6859 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6860 }
3b36f7e6
AM
6861
6862 htab->elf.hgot->root.u.def.value = g_o_t;
6863 }
0e1862bb 6864 if (bfd_link_pic (info))
bd6c6e2b
AM
6865 {
6866 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6867
6868 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6869 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6870 }
15bfcc77
AM
6871 if (info->emitrelocations)
6872 {
6873 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6874
6875 if (sda != NULL && sda->ref_regular)
6876 sda->root.u.def.section->flags |= SEC_KEEP;
6877 sda = htab->sdata[1].sym;
6878 if (sda != NULL && sda->ref_regular)
6879 sda->root.u.def.section->flags |= SEC_KEEP;
6880 }
3b36f7e6 6881
e054468f
AM
6882 if (htab->glink != NULL
6883 && htab->glink->size != 0
6884 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6885 {
6886 htab->glink_pltresolve = htab->glink->size;
9e390558
AM
6887 /* Space for the branch table. */
6888 htab->glink->size
6889 += htab->elf.srelplt->size / (sizeof (Elf32_External_Rela) / 4) - 4;
86b9da88 6890 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6891 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6892 ? 63 : 15);
d7128ce4 6893 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6894
5446cbdf 6895 if (htab->params->emit_stub_syms)
0ba07910
AM
6896 {
6897 struct elf_link_hash_entry *sh;
6898 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6899 TRUE, FALSE, FALSE);
6900 if (sh == NULL)
6901 return FALSE;
6902 if (sh->root.type == bfd_link_hash_new)
6903 {
6904 sh->root.type = bfd_link_hash_defined;
6905 sh->root.u.def.section = htab->glink;
6906 sh->root.u.def.value = htab->glink_pltresolve;
6907 sh->ref_regular = 1;
6908 sh->def_regular = 1;
6909 sh->ref_regular_nonweak = 1;
6910 sh->forced_local = 1;
6911 sh->non_elf = 0;
2ec55de3 6912 sh->root.linker_def = 1;
0ba07910
AM
6913 }
6914 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6915 TRUE, FALSE, FALSE);
6916 if (sh == NULL)
6917 return FALSE;
6918 if (sh->root.type == bfd_link_hash_new)
6919 {
6920 sh->root.type = bfd_link_hash_defined;
6921 sh->root.u.def.section = htab->glink;
6922 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6923 sh->ref_regular = 1;
6924 sh->def_regular = 1;
6925 sh->ref_regular_nonweak = 1;
6926 sh->forced_local = 1;
6927 sh->non_elf = 0;
2ec55de3 6928 sh->root.linker_def = 1;
0ba07910
AM
6929 }
6930 }
d7128ce4
AM
6931 }
6932
6177242a
AM
6933 if (htab->glink != NULL
6934 && htab->glink->size != 0
6935 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6936 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6937 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6938 {
6939 s = htab->glink_eh_frame;
6940 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6941 if (bfd_link_pic (info))
6177242a
AM
6942 {
6943 s->size += 4;
6944 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6945 s->size += 4;
6946 }
6947 }
6948
25dbc73a
AM
6949 /* We've now determined the sizes of the various dynamic sections.
6950 Allocate memory for them. */
6951 relocs = FALSE;
6952 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6953 {
9d8504b1
PB
6954 bfd_boolean strip_section = TRUE;
6955
25dbc73a
AM
6956 if ((s->flags & SEC_LINKER_CREATED) == 0)
6957 continue;
252b5132 6958
ce558b89
AM
6959 if (s == htab->elf.splt
6960 || s == htab->elf.sgot)
25dbc73a 6961 {
9d8504b1
PB
6962 /* We'd like to strip these sections if they aren't needed, but if
6963 we've exported dynamic symbols from them we must leave them.
6964 It's too late to tell BFD to get rid of the symbols. */
e054468f 6965 if (htab->elf.hplt != NULL)
9d8504b1 6966 strip_section = FALSE;
25dbc73a
AM
6967 /* Strip this section if we don't need it; see the
6968 comment below. */
6969 }
ce558b89 6970 else if (s == htab->elf.iplt
2d7ad24e 6971 || s == htab->pltlocal
e054468f 6972 || s == htab->glink
6177242a 6973 || s == htab->glink_eh_frame
ce558b89 6974 || s == htab->elf.sgotplt
e054468f 6975 || s == htab->sbss
9d19e4fd 6976 || s == htab->elf.sdynbss
5474d94f 6977 || s == htab->elf.sdynrelro
15bfcc77 6978 || s == htab->dynsbss)
25dbc73a 6979 {
c9a2f333 6980 /* Strip these too. */
25dbc73a 6981 }
15bfcc77
AM
6982 else if (s == htab->sdata[0].section
6983 || s == htab->sdata[1].section)
6984 {
6985 strip_section = (s->flags & SEC_KEEP) == 0;
6986 }
a0f49396
NC
6987 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6988 ".rela"))
25dbc73a 6989 {
c456f082 6990 if (s->size != 0)
25dbc73a
AM
6991 {
6992 /* Remember whether there are any relocation sections. */
6993 relocs = TRUE;
252b5132 6994
25dbc73a
AM
6995 /* We use the reloc_count field as a counter if we need
6996 to copy relocs into the output file. */
6997 s->reloc_count = 0;
252b5132
RH
6998 }
6999 }
25dbc73a
AM
7000 else
7001 {
7002 /* It's not one of our sections, so don't allocate space. */
7003 continue;
7004 }
252b5132 7005
9d8504b1 7006 if (s->size == 0 && strip_section)
25dbc73a 7007 {
c456f082
AM
7008 /* If we don't need this section, strip it from the
7009 output file. This is mostly to handle .rela.bss and
7010 .rela.plt. We must create both sections in
7011 create_dynamic_sections, because they must be created
7012 before the linker maps input sections to output
7013 sections. The linker does that before
7014 adjust_dynamic_symbol is called, and it is that
7015 function which decides whether anything needs to go
7016 into these sections. */
8423293d 7017 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
7018 continue;
7019 }
7fce784e 7020
d7128ce4 7021 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
7022 continue;
7023
25dbc73a
AM
7024 /* Allocate memory for the section contents. */
7025 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
7026 if (s->contents == NULL)
7027 return FALSE;
7028 }
252b5132 7029
25dbc73a 7030 if (htab->elf.dynamic_sections_created)
7619e7c7 7031 {
25dbc73a
AM
7032 /* Add some entries to the .dynamic section. We fill in the
7033 values later, in ppc_elf_finish_dynamic_sections, but we
7034 must add the entries now so that we get the correct size for
7035 the .dynamic section. The DT_DEBUG entry is filled in by the
7036 dynamic linker and used by the debugger. */
7037#define add_dynamic_entry(TAG, VAL) \
7038 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 7039
0e1862bb 7040 if (bfd_link_executable (info))
7619e7c7 7041 {
25dbc73a
AM
7042 if (!add_dynamic_entry (DT_DEBUG, 0))
7043 return FALSE;
7619e7c7
AM
7044 }
7045
ce558b89 7046 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 7047 {
25dbc73a
AM
7048 if (!add_dynamic_entry (DT_PLTGOT, 0)
7049 || !add_dynamic_entry (DT_PLTRELSZ, 0)
7050 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
7051 || !add_dynamic_entry (DT_JMPREL, 0))
7052 return FALSE;
7053 }
7619e7c7 7054
c7e17e05
AM
7055 if (htab->plt_type == PLT_NEW
7056 && htab->glink != NULL
7057 && htab->glink->size != 0)
d7128ce4 7058 {
1fe44d79 7059 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 7060 return FALSE;
5446cbdf 7061 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
7062 && htab->tls_get_addr != NULL
7063 && htab->tls_get_addr->plt.plist != NULL
e8910a83 7064 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 7065 return FALSE;
d7128ce4
AM
7066 }
7067
25dbc73a
AM
7068 if (relocs)
7069 {
7070 if (!add_dynamic_entry (DT_RELA, 0)
7071 || !add_dynamic_entry (DT_RELASZ, 0)
7072 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
7073 return FALSE;
7074 }
7619e7c7 7075
25dbc73a
AM
7076 /* If any dynamic relocs apply to a read-only section, then we
7077 need a DT_TEXTREL entry. */
7078 if ((info->flags & DF_TEXTREL) == 0)
625af618 7079 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 7080 info);
7619e7c7 7081
25dbc73a
AM
7082 if ((info->flags & DF_TEXTREL) != 0)
7083 {
7084 if (!add_dynamic_entry (DT_TEXTREL, 0))
7085 return FALSE;
7619e7c7 7086 }
7a2b07ff
NS
7087 if (htab->is_vxworks
7088 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
7089 return FALSE;
7090 }
25dbc73a
AM
7091#undef add_dynamic_entry
7092
7e01508c
AM
7093 if (htab->glink_eh_frame != NULL
7094 && htab->glink_eh_frame->contents != NULL)
7095 {
7096 unsigned char *p = htab->glink_eh_frame->contents;
7097 bfd_vma val;
7098
7099 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
7100 /* CIE length (rewrite in case little-endian). */
7101 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
7102 p += sizeof (glink_eh_frame_cie);
7103 /* FDE length. */
7104 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
7105 bfd_put_32 (htab->elf.dynobj, val, p);
7106 p += 4;
7107 /* CIE pointer. */
7108 val = p - htab->glink_eh_frame->contents;
7109 bfd_put_32 (htab->elf.dynobj, val, p);
7110 p += 4;
7111 /* Offset to .glink. Set later. */
7112 p += 4;
7113 /* .glink size. */
7114 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
7115 p += 4;
7116 /* Augmentation. */
7117 p += 1;
7118
0e1862bb 7119 if (bfd_link_pic (info)
7e01508c
AM
7120 && htab->elf.dynamic_sections_created)
7121 {
7122 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
7123 if (adv < 64)
7124 *p++ = DW_CFA_advance_loc + adv;
7125 else if (adv < 256)
7126 {
7127 *p++ = DW_CFA_advance_loc1;
7128 *p++ = adv;
7129 }
7130 else if (adv < 65536)
7131 {
7132 *p++ = DW_CFA_advance_loc2;
7133 bfd_put_16 (htab->elf.dynobj, adv, p);
7134 p += 2;
7135 }
7136 else
7137 {
7138 *p++ = DW_CFA_advance_loc4;
7139 bfd_put_32 (htab->elf.dynobj, adv, p);
7140 p += 4;
7141 }
7142 *p++ = DW_CFA_register;
7143 *p++ = 65;
7144 p++;
7145 *p++ = DW_CFA_advance_loc + 4;
7146 *p++ = DW_CFA_restore_extended;
7147 *p++ = 65;
7148 }
7149 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
7150 == htab->glink_eh_frame->size);
7151 }
7152
7619e7c7
AM
7153 return TRUE;
7154}
0eb4a168 7155
93d1b056
AM
7156/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
7157 if it looks like nothing is using them. */
7158
7159static void
7160maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
7161{
7162 struct elf_link_hash_entry *sda = lsect->sym;
7163
7164 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
7165 {
7166 asection *s;
7167
7168 s = bfd_get_section_by_name (output_bfd, lsect->name);
7169 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
7170 {
7171 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
7172 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
7173 {
7174 sda->def_regular = 0;
7175 /* This is somewhat magic. See elf_link_output_extsym. */
7176 sda->ref_dynamic = 1;
7177 sda->forced_local = 0;
7178 }
7179 }
7180 }
7181}
7182
7183void
7184ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
7185{
7186 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7187
7188 if (htab != NULL)
7189 {
7190 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
7191 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
7192 }
7193}
7194
7195
0eb4a168
AM
7196/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
7197
7198static bfd_boolean
7199ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
7200{
7201 if (h->plt.plist != NULL
7202 && !h->def_regular
7203 && (!h->pointer_equality_needed
7204 || !h->ref_regular_nonweak))
7205 return FALSE;
7206
7207 return _bfd_elf_hash_symbol (h);
7208}
25dbc73a
AM
7209\f
7210#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
7211
01017ef8
NS
7212/* Relaxation trampolines. r12 is available for clobbering (r11, is
7213 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
7214static const int shared_stub_entry[] =
7215 {
7216 0x7c0802a6, /* mflr 0 */
7217 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
7218 0x7d8802a6, /* mflr 12 */
7219 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 7220 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 7221 0x7c0803a6, /* mtlr 0 */
01017ef8 7222 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
7223 0x4e800420, /* bctr */
7224 };
7225
7226static const int stub_entry[] =
7227 {
01017ef8
NS
7228 0x3d800000, /* lis 12,xxx@ha */
7229 0x398c0000, /* addi 12,12,xxx@l */
7230 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
7231 0x4e800420, /* bctr */
7232 };
7233
5446cbdf
AM
7234struct ppc_elf_relax_info
7235{
7236 unsigned int workaround_size;
d3e454b9 7237 unsigned int picfixup_size;
5446cbdf
AM
7238};
7239
7240/* This function implements long branch trampolines, and the ppc476
7241 icache bug workaround. Any section needing trampolines or patch
7242 space for the workaround has its size extended so that we can
53291d1f 7243 add trampolines at the end of the section. */
5446cbdf 7244
25dbc73a
AM
7245static bfd_boolean
7246ppc_elf_relax_section (bfd *abfd,
7247 asection *isec,
7248 struct bfd_link_info *link_info,
7249 bfd_boolean *again)
7250{
d3e454b9 7251 struct one_branch_fixup
25dbc73a 7252 {
d3e454b9 7253 struct one_branch_fixup *next;
25dbc73a 7254 asection *tsec;
01017ef8
NS
7255 /* Final link, can use the symbol offset. For a
7256 relocatable link we use the symbol's index. */
25dbc73a
AM
7257 bfd_vma toff;
7258 bfd_vma trampoff;
7259 };
7619e7c7 7260
25dbc73a
AM
7261 Elf_Internal_Shdr *symtab_hdr;
7262 bfd_byte *contents = NULL;
7263 Elf_Internal_Sym *isymbuf = NULL;
7264 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 7265 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 7266 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 7267 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 7268 unsigned changes = 0;
5446cbdf 7269 bfd_boolean workaround_change;
d7128ce4 7270 struct ppc_elf_link_hash_table *htab;
d3e454b9 7271 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 7272 asection *got2;
50248c89 7273 bfd_boolean maybe_pasted;
7619e7c7 7274
25dbc73a 7275 *again = FALSE;
7619e7c7 7276
5446cbdf 7277 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 7278 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 7279 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
7280 || (isec->flags & SEC_LINKER_CREATED) != 0
7281 || isec->size < 4)
25dbc73a 7282 return TRUE;
7619e7c7 7283
c8a1f254
NS
7284 /* We cannot represent the required PIC relocs in the output, so don't
7285 do anything. The linker doesn't support mixing -shared and -r
7286 anyway. */
0e1862bb 7287 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 7288 return TRUE;
5b914448 7289
5446cbdf
AM
7290 htab = ppc_elf_hash_table (link_info);
7291 if (htab == NULL)
7292 return TRUE;
7293
7294 isec->size = (isec->size + 3) & -4;
7295 if (isec->rawsize == 0)
7296 isec->rawsize = isec->size;
7297 trampbase = isec->size;
7298
53291d1f
AM
7299 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
7300 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
7301 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
7302
d3e454b9
AM
7303 if (htab->params->ppc476_workaround
7304 || htab->params->pic_fixup > 0)
5446cbdf
AM
7305 {
7306 if (elf_section_data (isec)->sec_info == NULL)
7307 {
5446cbdf
AM
7308 elf_section_data (isec)->sec_info
7309 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
7310 if (elf_section_data (isec)->sec_info == NULL)
7311 return FALSE;
7312 }
7313 relax_info = elf_section_data (isec)->sec_info;
7314 trampbase -= relax_info->workaround_size;
7315 }
7316
50248c89
AM
7317 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
7318 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 7319 /* Space for a branch around any trampolines. */
5446cbdf
AM
7320 trampoff = trampbase;
7321 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 7322 trampoff += 4;
7619e7c7 7323
0ffa91dd 7324 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
7325 picfixup_size = 0;
7326 if (htab->params->branch_trampolines
7327 || htab->params->pic_fixup > 0)
7619e7c7 7328 {
5446cbdf
AM
7329 /* Get a copy of the native relocations. */
7330 if (isec->reloc_count != 0)
25dbc73a 7331 {
5446cbdf
AM
7332 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
7333 link_info->keep_memory);
7334 if (internal_relocs == NULL)
7335 goto error_return;
25dbc73a 7336 }
7619e7c7 7337
5446cbdf
AM
7338 got2 = bfd_get_section_by_name (abfd, ".got2");
7339
7340 irelend = internal_relocs + isec->reloc_count;
7341 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 7342 {
5446cbdf
AM
7343 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
7344 bfd_vma toff, roff;
7345 asection *tsec;
d3e454b9 7346 struct one_branch_fixup *f;
5446cbdf 7347 size_t insn_offset = 0;
d3e454b9 7348 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
7349 bfd_byte *hit_addr;
7350 unsigned long t0;
7351 struct elf_link_hash_entry *h;
49c09209 7352 Elf_Internal_Sym *isym;
5446cbdf
AM
7353 struct plt_entry **plist;
7354 unsigned char sym_type;
7355
7356 switch (r_type)
7357 {
7358 case R_PPC_REL24:
7359 case R_PPC_LOCAL24PC:
7360 case R_PPC_PLTREL24:
23cedd1d 7361 case R_PPC_PLTCALL:
5446cbdf
AM
7362 max_branch_offset = 1 << 25;
7363 break;
7364
7365 case R_PPC_REL14:
7366 case R_PPC_REL14_BRTAKEN:
7367 case R_PPC_REL14_BRNTAKEN:
7368 max_branch_offset = 1 << 15;
7369 break;
7fce784e 7370
d3e454b9
AM
7371 case R_PPC_ADDR16_HA:
7372 if (htab->params->pic_fixup > 0)
7373 break;
7374 continue;
7375
5446cbdf
AM
7376 default:
7377 continue;
7378 }
7379
7380 /* Get the value of the symbol referred to by the reloc. */
49c09209
AM
7381 if (!get_sym_h (&h, &isym, &tsec, NULL, &isymbuf,
7382 ELF32_R_SYM (irel->r_info), abfd))
7383 goto error_return;
5446cbdf 7384
49c09209
AM
7385 if (isym != NULL)
7386 {
7387 if (tsec != NULL)
7388 ;
5446cbdf
AM
7389 else if (isym->st_shndx == SHN_ABS)
7390 tsec = bfd_abs_section_ptr;
49199304
AM
7391 else
7392 continue;
5446cbdf
AM
7393
7394 toff = isym->st_value;
7395 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 7396 }
25dbc73a 7397 else
5446cbdf 7398 {
49c09209
AM
7399 if (tsec != NULL)
7400 toff = h->root.u.def.value;
5446cbdf
AM
7401 else if (h->root.type == bfd_link_hash_undefined
7402 || h->root.type == bfd_link_hash_undefweak)
7403 {
49c09209
AM
7404 unsigned long indx;
7405
7406 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5446cbdf 7407 tsec = bfd_und_section_ptr;
0e1862bb 7408 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
7409 }
7410 else
7411 continue;
7412
9f7552cf
AM
7413 /* If this branch is to __tls_get_addr then we may later
7414 optimise away the call. We won't be needing a long-
7415 branch stub in that case. */
0e1862bb 7416 if (bfd_link_executable (link_info)
9f7552cf
AM
7417 && h == htab->tls_get_addr
7418 && irel != internal_relocs)
7419 {
7420 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7421 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7422 unsigned int tls_mask = 0;
7423
7424 /* The previous reloc should be one of R_PPC_TLSGD or
7425 R_PPC_TLSLD, or for older object files, a reloc
7426 on the __tls_get_addr arg setup insn. Get tls
7427 mask bits from the symbol on that reloc. */
7428 if (t_symndx < symtab_hdr->sh_info)
7429 {
7430 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7431
7432 if (local_got_offsets != NULL)
7433 {
7434 struct plt_entry **local_plt = (struct plt_entry **)
7435 (local_got_offsets + symtab_hdr->sh_info);
7436 char *lgot_masks = (char *)
7437 (local_plt + symtab_hdr->sh_info);
7438 tls_mask = lgot_masks[t_symndx];
7439 }
7440 }
7441 else
7442 {
7443 struct elf_link_hash_entry *th
7444 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7445
7446 while (th->root.type == bfd_link_hash_indirect
7447 || th->root.type == bfd_link_hash_warning)
7448 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7449
7450 tls_mask
7451 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7452 }
7453
7454 /* The mask bits tell us if the call will be
7455 optimised away. */
7456 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7457 && (t_rtype == R_PPC_TLSGD
7458 || t_rtype == R_PPC_GOT_TLSGD16
7459 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7460 continue;
7461 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7462 && (t_rtype == R_PPC_TLSLD
7463 || t_rtype == R_PPC_GOT_TLSLD16
7464 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7465 continue;
7466 }
7467
5446cbdf
AM
7468 sym_type = h->type;
7469 }
7619e7c7 7470
d3e454b9
AM
7471 if (r_type == R_PPC_ADDR16_HA)
7472 {
7473 if (h != NULL
7474 && !h->def_regular
7475 && h->protected_def
7476 && ppc_elf_hash_entry (h)->has_addr16_ha
7477 && ppc_elf_hash_entry (h)->has_addr16_lo)
7478 picfixup_size += 12;
7479 continue;
7480 }
7481
5446cbdf
AM
7482 /* The condition here under which we call find_plt_ent must
7483 match that in relocate_section. If we call find_plt_ent here
7484 but not in relocate_section, or vice versa, then the branch
7485 destination used here may be incorrect. */
7486 plist = NULL;
7487 if (h != NULL)
25dbc73a 7488 {
5446cbdf
AM
7489 /* We know is_branch_reloc (r_type) is true. */
7490 if (h->type == STT_GNU_IFUNC
7491 || r_type == R_PPC_PLTREL24)
7492 plist = &h->plt.plist;
25dbc73a 7493 }
5446cbdf
AM
7494 else if (sym_type == STT_GNU_IFUNC
7495 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7496 {
5446cbdf
AM
7497 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7498 struct plt_entry **local_plt = (struct plt_entry **)
7499 (local_got_offsets + symtab_hdr->sh_info);
7500 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7501 }
5446cbdf 7502 if (plist != NULL)
a9585d22 7503 {
5446cbdf
AM
7504 bfd_vma addend = 0;
7505 struct plt_entry *ent;
7506
0e1862bb 7507 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7508 addend = irel->r_addend;
7509 ent = find_plt_ent (plist, got2, addend);
7510 if (ent != NULL)
a9585d22 7511 {
5446cbdf
AM
7512 if (htab->plt_type == PLT_NEW
7513 || h == NULL
7514 || !htab->elf.dynamic_sections_created
7515 || h->dynindx == -1)
7516 {
7517 tsec = htab->glink;
7518 toff = ent->glink_offset;
7519 }
7520 else
7521 {
ce558b89 7522 tsec = htab->elf.splt;
5446cbdf
AM
7523 toff = ent->plt.offset;
7524 }
de972ffa
AM
7525 }
7526 }
de972ffa 7527
5446cbdf
AM
7528 /* If the branch and target are in the same section, you have
7529 no hope of adding stubs. We'll error out later should the
7530 branch overflow. */
7531 if (tsec == isec)
7532 continue;
25dbc73a 7533
49199304
AM
7534 /* toff is used for the symbol index when the symbol is
7535 undefined and we're doing a relocatable link, so we can't
7536 support addends. It would be possible to do so by
7537 putting the addend in one_branch_fixup but addends on
7538 branches are rare so it hardly seems worth supporting. */
7539 if (bfd_link_relocatable (link_info)
7540 && tsec == bfd_und_section_ptr
7541 && r_type != R_PPC_PLTREL24
7542 && irel->r_addend != 0)
7543 continue;
7544
5446cbdf
AM
7545 /* There probably isn't any reason to handle symbols in
7546 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7547 attribute for a code section, and we are only looking at
7548 branches. However, implement it correctly here as a
7549 reference for other target relax_section functions. */
7550 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7551 {
7552 /* At this stage in linking, no SEC_MERGE symbol has been
7553 adjusted, so all references to such symbols need to be
7554 passed through _bfd_merged_section_offset. (Later, in
7555 relocate_section, all SEC_MERGE symbols *except* for
7556 section symbols have been adjusted.)
7557
7558 gas may reduce relocations against symbols in SEC_MERGE
7559 sections to a relocation against the section symbol when
7560 the original addend was zero. When the reloc is against
7561 a section symbol we should include the addend in the
7562 offset passed to _bfd_merged_section_offset, since the
7563 location of interest is the original symbol. On the
7564 other hand, an access to "sym+addend" where "sym" is not
7565 a section symbol should not include the addend; Such an
7566 access is presumed to be an offset from "sym"; The
7567 location of interest is just "sym". */
49199304
AM
7568 if (sym_type == STT_SECTION
7569 && r_type != R_PPC_PLTREL24)
5446cbdf
AM
7570 toff += irel->r_addend;
7571
7572 toff
7573 = _bfd_merged_section_offset (abfd, &tsec,
7574 elf_section_data (tsec)->sec_info,
7575 toff);
7576
49199304
AM
7577 if (sym_type != STT_SECTION
7578 && r_type != R_PPC_PLTREL24)
5446cbdf
AM
7579 toff += irel->r_addend;
7580 }
7581 /* PLTREL24 addends are special. */
7582 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7583 toff += irel->r_addend;
7619e7c7 7584
5446cbdf 7585 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7586 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7587 && tsec == bfd_und_section_ptr)
7588 || tsec->output_section == NULL
7589 || (tsec->owner != NULL
7590 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7591 continue;
7619e7c7 7592
5446cbdf 7593 roff = irel->r_offset;
7de713b9 7594
49199304
AM
7595 /* Avoid creating a lot of unnecessary fixups when
7596 relocatable if the output section size is such that a
7597 fixup can be created at final link.
7598 The max_branch_offset adjustment allows for some number
7599 of other fixups being needed at final link. */
7600 if (bfd_link_relocatable (link_info)
7601 && (isec->output_section->rawsize - (isec->output_offset + roff)
7602 < max_branch_offset - (max_branch_offset >> 4)))
7603 continue;
7604
5446cbdf
AM
7605 /* If the branch is in range, no need to do anything. */
7606 if (tsec != bfd_und_section_ptr
0e1862bb 7607 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7608 /* A relocatable link may have sections moved during
7609 final link, so do not presume they remain in range. */
7610 || tsec->output_section == isec->output_section))
7611 {
7612 bfd_vma symaddr, reladdr;
7619e7c7 7613
5446cbdf
AM
7614 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7615 reladdr = isec->output_section->vma + isec->output_offset + roff;
7616 if (symaddr - reladdr + max_branch_offset
7617 < 2 * max_branch_offset)
7618 continue;
7619 }
01017ef8 7620
5446cbdf 7621 /* Look for an existing fixup to this address. */
d3e454b9 7622 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7623 if (f->tsec == tsec && f->toff == toff)
7624 break;
252b5132 7625
5446cbdf
AM
7626 if (f == NULL)
7627 {
7628 size_t size;
7629 unsigned long stub_rtype;
25dbc73a 7630
5446cbdf
AM
7631 val = trampoff - roff;
7632 if (val >= max_branch_offset)
7633 /* Oh dear, we can't reach a trampoline. Don't try to add
7634 one. We'll report an error later. */
7635 continue;
252b5132 7636
0e1862bb 7637 if (bfd_link_pic (link_info))
5446cbdf
AM
7638 {
7639 size = 4 * ARRAY_SIZE (shared_stub_entry);
7640 insn_offset = 12;
7641 }
7642 else
7643 {
7644 size = 4 * ARRAY_SIZE (stub_entry);
7645 insn_offset = 0;
7646 }
7647 stub_rtype = R_PPC_RELAX;
ce558b89 7648 if (tsec == htab->elf.splt
5446cbdf
AM
7649 || tsec == htab->glink)
7650 {
7651 stub_rtype = R_PPC_RELAX_PLT;
7652 if (r_type == R_PPC_PLTREL24)
7653 stub_rtype = R_PPC_RELAX_PLTREL24;
7654 }
252b5132 7655
5446cbdf
AM
7656 /* Hijack the old relocation. Since we need two
7657 relocations for this use a "composite" reloc. */
7658 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7659 stub_rtype);
7660 irel->r_offset = trampoff + insn_offset;
7661 if (r_type == R_PPC_PLTREL24
7662 && stub_rtype != R_PPC_RELAX_PLTREL24)
7663 irel->r_addend = 0;
7664
7665 /* Record the fixup so we don't do it again this section. */
7666 f = bfd_malloc (sizeof (*f));
d3e454b9 7667 f->next = branch_fixups;
5446cbdf
AM
7668 f->tsec = tsec;
7669 f->toff = toff;
7670 f->trampoff = trampoff;
d3e454b9 7671 branch_fixups = f;
5446cbdf
AM
7672
7673 trampoff += size;
7674 changes++;
25dbc73a
AM
7675 }
7676 else
7677 {
5446cbdf
AM
7678 val = f->trampoff - roff;
7679 if (val >= max_branch_offset)
7680 continue;
252b5132 7681
5446cbdf
AM
7682 /* Nop out the reloc, since we're finalizing things here. */
7683 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7684 }
252b5132 7685
5446cbdf
AM
7686 /* Get the section contents. */
7687 if (contents == NULL)
25dbc73a 7688 {
5446cbdf
AM
7689 /* Get cached copy if it exists. */
7690 if (elf_section_data (isec)->this_hdr.contents != NULL)
7691 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7692 /* Go get them off disk. */
5446cbdf 7693 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7694 goto error_return;
7695 }
252b5132 7696
5446cbdf
AM
7697 /* Fix up the existing branch to hit the trampoline. */
7698 hit_addr = contents + roff;
7699 switch (r_type)
7700 {
7701 case R_PPC_REL24:
7702 case R_PPC_LOCAL24PC:
7703 case R_PPC_PLTREL24:
7704 t0 = bfd_get_32 (abfd, hit_addr);
7705 t0 &= ~0x3fffffc;
7706 t0 |= val & 0x3fffffc;
7707 bfd_put_32 (abfd, t0, hit_addr);
7708 break;
252b5132 7709
5446cbdf
AM
7710 case R_PPC_REL14:
7711 case R_PPC_REL14_BRTAKEN:
7712 case R_PPC_REL14_BRNTAKEN:
7713 t0 = bfd_get_32 (abfd, hit_addr);
7714 t0 &= ~0xfffc;
7715 t0 |= val & 0xfffc;
7716 bfd_put_32 (abfd, t0, hit_addr);
7717 break;
7718 }
25dbc73a 7719 }
252b5132 7720
d3e454b9 7721 while (branch_fixups != NULL)
25dbc73a 7722 {
d3e454b9
AM
7723 struct one_branch_fixup *f = branch_fixups;
7724 branch_fixups = branch_fixups->next;
25dbc73a
AM
7725 free (f);
7726 }
5446cbdf 7727 }
252b5132 7728
5446cbdf
AM
7729 workaround_change = FALSE;
7730 newsize = trampoff;
795bc6b3 7731 if (htab->params->ppc476_workaround
0e1862bb 7732 && (!bfd_link_relocatable (link_info)
795bc6b3 7733 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7734 {
7735 bfd_vma addr, end_addr;
7736 unsigned int crossings;
795bc6b3 7737 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7738
7739 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7740 end_addr = addr + trampoff;
5446cbdf 7741 addr &= -pagesize;
795bc6b3 7742 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7743 if (crossings != 0)
7744 {
7745 /* Keep space aligned, to ensure the patch code itself does
7746 not cross a page. Don't decrease size calculated on a
7747 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7748 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7749 newsize += crossings * 16;
7750 if (relax_info->workaround_size < newsize)
7751 {
7752 relax_info->workaround_size = newsize;
7753 workaround_change = TRUE;
5446cbdf
AM
7754 }
7755 /* Ensure relocate_section is called. */
7756 isec->flags |= SEC_RELOC;
7757 }
7758 newsize = trampoff + relax_info->workaround_size;
7759 }
7760
d3e454b9
AM
7761 if (htab->params->pic_fixup > 0)
7762 {
7763 picfixup_size -= relax_info->picfixup_size;
7764 if (picfixup_size != 0)
7765 relax_info->picfixup_size += picfixup_size;
7766 newsize += relax_info->picfixup_size;
7767 }
7768
7769 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7770 isec->size = newsize;
7771
25dbc73a
AM
7772 if (isymbuf != NULL
7773 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7774 {
25dbc73a
AM
7775 if (! link_info->keep_memory)
7776 free (isymbuf);
252b5132 7777 else
25dbc73a
AM
7778 {
7779 /* Cache the symbols for elf_link_input_bfd. */
7780 symtab_hdr->contents = (unsigned char *) isymbuf;
7781 }
252b5132
RH
7782 }
7783
25dbc73a
AM
7784 if (contents != NULL
7785 && elf_section_data (isec)->this_hdr.contents != contents)
7786 {
53291d1f 7787 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7788 free (contents);
7789 else
7790 {
7791 /* Cache the section contents for elf_link_input_bfd. */
7792 elf_section_data (isec)->this_hdr.contents = contents;
7793 }
7794 }
252b5132 7795
d3e454b9 7796 changes += picfixup_size;
9bc4e62b 7797 if (changes != 0)
25dbc73a 7798 {
9bc4e62b
NS
7799 /* Append sufficient NOP relocs so we can write out relocation
7800 information for the trampolines. */
d4730f92 7801 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7802 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7803 * sizeof (*new_relocs));
7804 unsigned ix;
5b914448 7805
9bc4e62b
NS
7806 if (!new_relocs)
7807 goto error_return;
7808 memcpy (new_relocs, internal_relocs,
7809 isec->reloc_count * sizeof (*new_relocs));
7810 for (ix = changes; ix--;)
7811 {
7812 irel = new_relocs + ix + isec->reloc_count;
7813
7814 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7815 }
7816 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7817 free (internal_relocs);
9bc4e62b
NS
7818 elf_section_data (isec)->relocs = new_relocs;
7819 isec->reloc_count += changes;
d4730f92
BS
7820 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7821 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7822 }
5446cbdf
AM
7823 else if (internal_relocs != NULL
7824 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7825 free (internal_relocs);
252b5132 7826
5446cbdf 7827 *again = changes != 0 || workaround_change;
b34976b6 7828 return TRUE;
25dbc73a
AM
7829
7830 error_return:
d3e454b9 7831 while (branch_fixups != NULL)
5446cbdf 7832 {
d3e454b9
AM
7833 struct one_branch_fixup *f = branch_fixups;
7834 branch_fixups = branch_fixups->next;
5446cbdf
AM
7835 free (f);
7836 }
25dbc73a
AM
7837 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7838 free (isymbuf);
7839 if (contents != NULL
7840 && elf_section_data (isec)->this_hdr.contents != contents)
7841 free (contents);
7842 if (internal_relocs != NULL
7843 && elf_section_data (isec)->relocs != internal_relocs)
7844 free (internal_relocs);
7845 return FALSE;
252b5132 7846}
252b5132 7847\f
8a696751
AM
7848/* What to do when ld finds relocations against symbols defined in
7849 discarded sections. */
7850
7851static unsigned int
7852ppc_elf_action_discarded (asection *sec)
7853{
7854 if (strcmp (".fixup", sec->name) == 0)
7855 return 0;
7856
7857 if (strcmp (".got2", sec->name) == 0)
7858 return 0;
7859
7860 return _bfd_elf_default_action_discarded (sec);
7861}
c9a2f333 7862\f
25dbc73a 7863/* Fill in the address for a pointer generated in a linker section. */
252b5132 7864
25dbc73a 7865static bfd_vma
76750a2f 7866elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7867 elf_linker_section_t *lsect,
7868 struct elf_link_hash_entry *h,
7869 bfd_vma relocation,
2bb04cf2 7870 const Elf_Internal_Rela *rel)
25dbc73a
AM
7871{
7872 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7873
25dbc73a 7874 BFD_ASSERT (lsect != NULL);
252b5132 7875
25dbc73a 7876 if (h != NULL)
252b5132 7877 {
25dbc73a
AM
7878 /* Handle global symbol. */
7879 struct ppc_elf_link_hash_entry *eh;
252b5132 7880
25dbc73a 7881 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7882 BFD_ASSERT (eh->elf.def_regular);
7883 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7884 }
7885 else
7886 {
7887 /* Handle local symbol. */
7888 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7889
0c8d6e5c 7890 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7891 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7892 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7893 }
252b5132 7894
76750a2f
AM
7895 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7896 rel->r_addend,
7897 lsect);
7898 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7899
76750a2f
AM
7900 /* Offset will always be a multiple of four, so use the bottom bit
7901 as a "written" flag. */
7902 if ((linker_section_ptr->offset & 1) == 0)
7903 {
7904 bfd_put_32 (lsect->section->owner,
7905 relocation + linker_section_ptr->addend,
7906 lsect->section->contents + linker_section_ptr->offset);
7907 linker_section_ptr->offset += 1;
252b5132
RH
7908 }
7909
bd6c6e2b
AM
7910 relocation = (lsect->section->output_section->vma
7911 + lsect->section->output_offset
76750a2f 7912 + linker_section_ptr->offset - 1
bd6c6e2b 7913 - SYM_VAL (lsect->sym));
252b5132 7914
25dbc73a
AM
7915#ifdef DEBUG
7916 fprintf (stderr,
7917 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7918 lsect->name, (long) relocation, (long) relocation);
7919#endif
252b5132 7920
bd6c6e2b 7921 return relocation;
252b5132 7922}
25dbc73a 7923
e054468f
AM
7924#define PPC_LO(v) ((v) & 0xffff)
7925#define PPC_HI(v) (((v) >> 16) & 0xffff)
7926#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7927
7928static void
9e390558
AM
7929write_glink_stub (struct elf_link_hash_entry *h, struct plt_entry *ent,
7930 asection *plt_sec, unsigned char *p,
e054468f
AM
7931 struct bfd_link_info *info)
7932{
7933 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7934 bfd *output_bfd = info->output_bfd;
7935 bfd_vma plt;
9e390558
AM
7936 unsigned char *end = p + GLINK_ENTRY_SIZE (htab, h);
7937
7938 if (h != NULL
7939 && h == htab->tls_get_addr
7940 && !htab->params->no_tls_get_addr_opt)
7941 {
7942 bfd_put_32 (output_bfd, LWZ_11_3, p);
7943 p += 4;
7944 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
7945 p += 4;
7946 bfd_put_32 (output_bfd, MR_0_3, p);
7947 p += 4;
7948 bfd_put_32 (output_bfd, CMPWI_11_0, p);
7949 p += 4;
7950 bfd_put_32 (output_bfd, ADD_3_12_2, p);
7951 p += 4;
7952 bfd_put_32 (output_bfd, BEQLR, p);
7953 p += 4;
7954 bfd_put_32 (output_bfd, MR_3_0, p);
7955 p += 4;
7956 bfd_put_32 (output_bfd, NOP, p);
7957 p += 4;
7958 }
e054468f
AM
7959
7960 plt = ((ent->plt.offset & ~1)
7961 + plt_sec->output_section->vma
7962 + plt_sec->output_offset);
e054468f 7963
0e1862bb 7964 if (bfd_link_pic (info))
e054468f
AM
7965 {
7966 bfd_vma got = 0;
7967
7968 if (ent->addend >= 32768)
7969 got = (ent->addend
7970 + ent->sec->output_section->vma
7971 + ent->sec->output_offset);
7972 else if (htab->elf.hgot != NULL)
7973 got = SYM_VAL (htab->elf.hgot);
7974
7975 plt -= got;
7976
7977 if (plt + 0x8000 < 0x10000)
9e390558 7978 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
e054468f
AM
7979 else
7980 {
7981 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7982 p += 4;
7983 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
e054468f
AM
7984 }
7985 }
7986 else
7987 {
7988 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7989 p += 4;
7990 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
9e390558
AM
7991 }
7992 p += 4;
7993 bfd_put_32 (output_bfd, MTCTR_11, p);
7994 p += 4;
407aa07c
AM
7995 bfd_put_32 (output_bfd, BCTR, p);
7996 p += 4;
9e390558
AM
7997 while (p < end)
7998 {
7999 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
8000 p += 4;
8001 }
8002}
8003
bd6c6e2b
AM
8004/* Return true if symbol is defined statically. */
8005
8006static bfd_boolean
8007is_static_defined (struct elf_link_hash_entry *h)
8008{
8009 return ((h->root.type == bfd_link_hash_defined
8010 || h->root.type == bfd_link_hash_defweak)
8011 && h->root.u.def.section != NULL
8012 && h->root.u.def.section->output_section != NULL);
8013}
8014
2d0f3896
AM
8015/* If INSN is an opcode that may be used with an @tls operand, return
8016 the transformed insn for TLS optimisation, otherwise return 0. If
8017 REG is non-zero only match an insn with RB or RA equal to REG. */
8018
8019unsigned int
8020_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
8021{
8022 unsigned int rtra;
8023
8024 if ((insn & (0x3f << 26)) != 31 << 26)
8025 return 0;
8026
8027 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
8028 rtra = insn & ((1 << 26) - (1 << 16));
8029 else if (((insn >> 16) & 0x1f) == reg)
8030 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
8031 else
8032 return 0;
8033
8034 if ((insn & (0x3ff << 1)) == 266 << 1)
8035 /* add -> addi. */
8036 insn = 14 << 26;
8037 else if ((insn & (0x1f << 1)) == 23 << 1
8038 && ((insn & (0x1f << 6)) < 14 << 6
8039 || ((insn & (0x1f << 6)) >= 16 << 6
8040 && (insn & (0x1f << 6)) < 24 << 6)))
8041 /* load and store indexed -> dform. */
8042 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
8043 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
8044 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
8045 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
8046 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
8047 /* lwax -> lwa. */
8048 insn = (58 << 26) | 2;
8049 else
8050 return 0;
8051 insn |= rtra;
8052 return insn;
8053}
8054
766bc656
AM
8055/* If INSN is an opcode that may be used with an @tprel operand, return
8056 the transformed insn for an undefined weak symbol, ie. with the
8057 thread pointer REG operand removed. Otherwise return 0. */
8058
8059unsigned int
8060_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
8061{
8062 if ((insn & (0x1f << 16)) == reg << 16
8063 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8064 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
8065 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8066 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8067 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8068 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8069 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8070 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8071 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8072 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8073 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8074 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8075 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8076 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8077 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8078 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8079 && (insn & 3) != 1)
8080 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8081 && ((insn & 3) == 0 || (insn & 3) == 3))))
8082 {
8083 insn &= ~(0x1f << 16);
8084 }
8085 else if ((insn & (0x1f << 21)) == reg << 21
8086 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
8087 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
8088 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
8089 {
8090 insn &= ~(0x1f << 21);
8091 insn |= (insn & (0x1f << 16)) << 5;
8092 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
8093 insn -= 2 >> 26; /* convert to ori,oris */
8094 }
8095 else
8096 insn = 0;
8097 return insn;
8098}
8099
1fe532cf
AM
8100static bfd_boolean
8101is_insn_ds_form (unsigned int insn)
8102{
8103 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
8104 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
8105 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
8106 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
8107}
8108
8109static bfd_boolean
8110is_insn_dq_form (unsigned int insn)
8111{
a680de9a
PB
8112 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
8113 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
8114 && (insn & 3) == 1));
1fe532cf
AM
8115}
8116
252b5132
RH
8117/* The RELOCATE_SECTION function is called by the ELF backend linker
8118 to handle the relocations for a section.
8119
8120 The relocs are always passed as Rela structures; if the section
8121 actually uses Rel structures, the r_addend field will always be
8122 zero.
8123
8124 This function is responsible for adjust the section contents as
8125 necessary, and (if using Rela relocs and generating a
1049f94e 8126 relocatable output file) adjusting the reloc addend as
252b5132
RH
8127 necessary.
8128
8129 This function does not have to worry about setting the reloc
8130 address or the reloc symbol index.
8131
8132 LOCAL_SYMS is a pointer to the swapped in local symbols.
8133
8134 LOCAL_SECTIONS is an array giving the section in the input file
8135 corresponding to the st_shndx field of each local symbol.
8136
8137 The global hash table entry for the global symbols can be found
8138 via elf_sym_hashes (input_bfd).
8139
1049f94e 8140 When generating relocatable output, this function must handle
252b5132
RH
8141 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
8142 going to be the section symbol corresponding to the output
8143 section, which means that the addend must be adjusted
8144 accordingly. */
8145
b34976b6 8146static bfd_boolean
55fd94b0
AM
8147ppc_elf_relocate_section (bfd *output_bfd,
8148 struct bfd_link_info *info,
8149 bfd *input_bfd,
8150 asection *input_section,
8151 bfd_byte *contents,
8152 Elf_Internal_Rela *relocs,
8153 Elf_Internal_Sym *local_syms,
8154 asection **local_sections)
252b5132 8155{
7619e7c7
AM
8156 Elf_Internal_Shdr *symtab_hdr;
8157 struct elf_link_hash_entry **sym_hashes;
8158 struct ppc_elf_link_hash_table *htab;
8159 Elf_Internal_Rela *rel;
c316a17c 8160 Elf_Internal_Rela *wrel;
7619e7c7
AM
8161 Elf_Internal_Rela *relend;
8162 Elf_Internal_Rela outrel;
f95f8542 8163 asection *got2;
252b5132 8164 bfd_vma *local_got_offsets;
b34976b6 8165 bfd_boolean ret = TRUE;
95f0d0d2 8166 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 8167 bfd_boolean is_vxworks_tls;
d3e454b9
AM
8168 unsigned int picfixup_size = 0;
8169 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 8170
252b5132 8171#ifdef DEBUG
871b3ab2 8172 _bfd_error_handler ("ppc_elf_relocate_section called for %pB section %pA, "
d003868e
AM
8173 "%ld relocations%s",
8174 input_bfd, input_section,
8175 (long) input_section->reloc_count,
0e1862bb 8176 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
8177#endif
8178
a6aa5195
AM
8179 got2 = bfd_get_section_by_name (input_bfd, ".got2");
8180
e47cd125 8181 /* Initialize howto table if not already done. */
8da6118f 8182 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
8183 ppc_elf_howto_init ();
8184
7619e7c7 8185 htab = ppc_elf_hash_table (info);
252b5132 8186 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 8187 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 8188 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
8189 /* We have to handle relocations in vxworks .tls_vars sections
8190 specially, because the dynamic loader is 'weird'. */
0e1862bb 8191 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
8192 && !strcmp (input_section->output_section->name,
8193 ".tls_vars"));
d3e454b9
AM
8194 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
8195 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 8196 rel = wrel = relocs;
7619e7c7 8197 relend = relocs + input_section->reloc_count;
c316a17c 8198 for (; rel < relend; wrel++, rel++)
252b5132 8199 {
7619e7c7
AM
8200 enum elf_ppc_reloc_type r_type;
8201 bfd_vma addend;
8202 bfd_reloc_status_type r;
8203 Elf_Internal_Sym *sym;
8204 asection *sec;
8205 struct elf_link_hash_entry *h;
8206 const char *sym_name;
252b5132
RH
8207 reloc_howto_type *howto;
8208 unsigned long r_symndx;
8209 bfd_vma relocation;
91d6fa6a 8210 bfd_vma branch_bit, from;
23cedd1d 8211 bfd_boolean unresolved_reloc, save_unresolved_reloc;
7619e7c7
AM
8212 bfd_boolean warned;
8213 unsigned int tls_type, tls_mask, tls_gd;
08be3224 8214 struct plt_entry **ifunc, **plt_list;
86c95733 8215 struct reloc_howto_struct alt_howto;
7619e7c7 8216
c316a17c 8217 again:
55fd94b0
AM
8218 r_type = ELF32_R_TYPE (rel->r_info);
8219 sym = NULL;
8220 sec = NULL;
8221 h = NULL;
7619e7c7
AM
8222 unresolved_reloc = FALSE;
8223 warned = FALSE;
252b5132 8224 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 8225
252b5132
RH
8226 if (r_symndx < symtab_hdr->sh_info)
8227 {
8228 sym = local_syms + r_symndx;
8229 sec = local_sections[r_symndx];
26c61ae5 8230 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 8231
8517fae7 8232 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
8233 }
8234 else
8235 {
62d887d4
L
8236 bfd_boolean ignored;
8237
b2a8e766
AM
8238 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
8239 r_symndx, symtab_hdr, sym_hashes,
8240 h, sec, relocation,
62d887d4 8241 unresolved_reloc, warned, ignored);
9abc968f 8242
252b5132 8243 sym_name = h->root.root.string;
7619e7c7
AM
8244 }
8245
dbaa2011 8246 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
8247 {
8248 /* For relocs against symbols from removed linkonce sections,
8249 or sections discarded by a linker script, we just want the
8250 section contents zeroed. Avoid any special processing. */
8251 howto = NULL;
8252 if (r_type < R_PPC_max)
8253 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
8254
8255 _bfd_clear_contents (howto, input_bfd, input_section,
8256 contents + rel->r_offset);
8257 wrel->r_offset = rel->r_offset;
8258 wrel->r_info = 0;
8259 wrel->r_addend = 0;
8260
8261 /* For ld -r, remove relocations in debug sections against
dcd2b8a0 8262 symbols defined in discarded sections. Not done for
c316a17c
AM
8263 non-debug to preserve relocs in .eh_frame which the
8264 eh_frame editing code expects to be present. */
8265 if (bfd_link_relocatable (info)
8266 && (input_section->flags & SEC_DEBUGGING))
8267 wrel--;
8268
8269 continue;
ab96bf03
AM
8270 }
8271
0e1862bb 8272 if (bfd_link_relocatable (info))
ab96bf03
AM
8273 {
8274 if (got2 != NULL
8275 && r_type == R_PPC_PLTREL24
f75e0e33 8276 && rel->r_addend != 0)
ab96bf03
AM
8277 {
8278 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8279 addend specifies the GOT pointer offset within .got2. */
8280 rel->r_addend += got2->output_offset;
8281 }
53291d1f
AM
8282 if (r_type != R_PPC_RELAX_PLT
8283 && r_type != R_PPC_RELAX_PLTREL24
8284 && r_type != R_PPC_RELAX)
c316a17c 8285 goto copy_reloc;
ab96bf03
AM
8286 }
8287
7619e7c7
AM
8288 /* TLS optimizations. Replace instruction sequences and relocs
8289 based on information we collected in tls_optimize. We edit
8290 RELOCS so that --emit-relocs will output something sensible
8291 for the final instruction stream. */
8292 tls_mask = 0;
8293 tls_gd = 0;
727fc41e
AM
8294 if (h != NULL)
8295 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
8296 else if (local_got_offsets != NULL)
7619e7c7 8297 {
e054468f 8298 struct plt_entry **local_plt;
727fc41e 8299 char *lgot_masks;
e054468f
AM
8300 local_plt
8301 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
8302 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 8303 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
8304 }
8305
8306 /* Ensure reloc mapping code below stays sane. */
8307 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
8308 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
8309 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
8310 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
8311 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
8312 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
8313 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
8314 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
8315 abort ();
8316 switch (r_type)
8317 {
8318 default:
8319 break;
8320
8321 case R_PPC_GOT_TPREL16:
8322 case R_PPC_GOT_TPREL16_LO:
e054468f 8323 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
8324 && (tls_mask & TLS_TPREL) == 0)
8325 {
8326 bfd_vma insn;
91d6fa6a 8327
95f0d0d2 8328 insn = bfd_get_32 (input_bfd,
c316a17c 8329 contents + rel->r_offset - d_offset);
7619e7c7
AM
8330 insn &= 31 << 21;
8331 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 8332 bfd_put_32 (input_bfd, insn,
c316a17c 8333 contents + rel->r_offset - d_offset);
7619e7c7
AM
8334 r_type = R_PPC_TPREL16_HA;
8335 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8336 }
8337 break;
8338
8339 case R_PPC_TLS:
e054468f 8340 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
8341 && (tls_mask & TLS_TPREL) == 0)
8342 {
2d0f3896
AM
8343 bfd_vma insn;
8344
95f0d0d2 8345 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
8346 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
8347 if (insn == 0)
7619e7c7 8348 abort ();
95f0d0d2 8349 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
8350 r_type = R_PPC_TPREL16_LO;
8351 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 8352
7619e7c7 8353 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
8354 PPC_TPREL16_LO which is at low-order half-word. */
8355 rel->r_offset += d_offset;
7619e7c7
AM
8356 }
8357 break;
8358
8359 case R_PPC_GOT_TLSGD16_HI:
8360 case R_PPC_GOT_TLSGD16_HA:
8361 tls_gd = TLS_TPRELGD;
e054468f 8362 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
8363 goto tls_gdld_hi;
8364 break;
8365
8366 case R_PPC_GOT_TLSLD16_HI:
8367 case R_PPC_GOT_TLSLD16_HA:
e054468f 8368 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
8369 {
8370 tls_gdld_hi:
8371 if ((tls_mask & tls_gd) != 0)
8372 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8373 + R_PPC_GOT_TPREL16);
8374 else
8375 {
4fe5ca5b 8376 rel->r_offset -= d_offset;
95f0d0d2 8377 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
8378 r_type = R_PPC_NONE;
8379 }
8380 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8381 }
8382 break;
8383
8384 case R_PPC_GOT_TLSGD16:
8385 case R_PPC_GOT_TLSGD16_LO:
8386 tls_gd = TLS_TPRELGD;
e054468f 8387 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 8388 goto tls_ldgd_opt;
7619e7c7
AM
8389 break;
8390
8391 case R_PPC_GOT_TLSLD16:
8392 case R_PPC_GOT_TLSLD16_LO:
e054468f 8393 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 8394 {
3a71aa26 8395 unsigned int insn1, insn2;
b7fcf6f6 8396 bfd_vma offset;
7619e7c7 8397
b7fcf6f6 8398 tls_ldgd_opt:
727fc41e
AM
8399 offset = (bfd_vma) -1;
8400 /* If not using the newer R_PPC_TLSGD/LD to mark
8401 __tls_get_addr calls, we must trust that the call
8402 stays with its arg setup insns, ie. that the next
8403 reloc is the __tls_get_addr call associated with
8404 the current reloc. Edit both insns. */
8405 if (input_section->has_tls_get_addr_call
8406 && rel + 1 < relend
8407 && branch_reloc_hash_match (input_bfd, rel + 1,
8408 htab->tls_get_addr))
8409 offset = rel[1].r_offset;
b86ac8e3
AM
8410 /* We read the low GOT_TLS insn because we need to keep
8411 the destination reg. It may be something other than
8412 the usual r3, and moved to r3 before the call by
8413 intervening code. */
95f0d0d2 8414 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 8415 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8416 if ((tls_mask & tls_gd) != 0)
8417 {
8418 /* IE */
b86ac8e3 8419 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 8420 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
8421 if (offset != (bfd_vma) -1)
8422 {
f58d5a2d 8423 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 8424 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 8425 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8426 }
b7fcf6f6
AM
8427 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8428 + R_PPC_GOT_TPREL16);
8429 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8430 }
8431 else
8432 {
8433 /* LE */
b86ac8e3
AM
8434 insn1 &= 0x1f << 21;
8435 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
8436 if (tls_gd == 0)
8437 {
b7fcf6f6 8438 /* Was an LD reloc. */
1d483afe
AM
8439 for (r_symndx = 0;
8440 r_symndx < symtab_hdr->sh_info;
8441 r_symndx++)
8442 if (local_sections[r_symndx] == sec)
8443 break;
8444 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8445 r_symndx = STN_UNDEF;
b7fcf6f6 8446 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8447 if (r_symndx != STN_UNDEF)
1d483afe
AM
8448 rel->r_addend -= (local_syms[r_symndx].st_value
8449 + sec->output_offset
8450 + sec->output_section->vma);
7619e7c7 8451 }
b7fcf6f6
AM
8452 r_type = R_PPC_TPREL16_HA;
8453 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
8454 if (offset != (bfd_vma) -1)
8455 {
8456 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8457 rel[1].r_offset = offset + d_offset;
8458 rel[1].r_addend = rel->r_addend;
8459 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8460 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8461 }
b7fcf6f6 8462 }
95f0d0d2 8463 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 8464 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8465 if (tls_gd == 0)
8466 {
8467 /* We changed the symbol on an LD reloc. Start over
8468 in order to get h, sym, sec etc. right. */
c316a17c 8469 goto again;
7619e7c7 8470 }
252b5132 8471 }
7619e7c7 8472 break;
727fc41e
AM
8473
8474 case R_PPC_TLSGD:
675e2809
AM
8475 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
8476 && rel + 1 < relend)
727fc41e
AM
8477 {
8478 unsigned int insn2;
8479 bfd_vma offset = rel->r_offset;
8480
23cedd1d
AM
8481 if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
8482 {
8483 bfd_put_32 (input_bfd, NOP, contents + offset);
8484 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8485 break;
8486 }
8487
727fc41e
AM
8488 if ((tls_mask & TLS_TPRELGD) != 0)
8489 {
8490 /* IE */
8491 r_type = R_PPC_NONE;
8492 insn2 = 0x7c631214; /* add 3,3,2 */
8493 }
8494 else
8495 {
8496 /* LE */
8497 r_type = R_PPC_TPREL16_LO;
8498 rel->r_offset += d_offset;
8499 insn2 = 0x38630000; /* addi 3,3,0 */
8500 }
8501 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 8502 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
8503 /* Zap the reloc on the _tls_get_addr call too. */
8504 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8505 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8506 }
8507 break;
8508
8509 case R_PPC_TLSLD:
675e2809
AM
8510 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
8511 && rel + 1 < relend)
727fc41e
AM
8512 {
8513 unsigned int insn2;
8514
23cedd1d
AM
8515 if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
8516 {
8517 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
8518 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
8519 break;
8520 }
8521
727fc41e
AM
8522 for (r_symndx = 0;
8523 r_symndx < symtab_hdr->sh_info;
8524 r_symndx++)
8525 if (local_sections[r_symndx] == sec)
8526 break;
8527 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8528 r_symndx = STN_UNDEF;
727fc41e 8529 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8530 if (r_symndx != STN_UNDEF)
727fc41e
AM
8531 rel->r_addend -= (local_syms[r_symndx].st_value
8532 + sec->output_offset
8533 + sec->output_section->vma);
8534
8535 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8536 rel->r_offset += d_offset;
8537 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8538 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
8539 contents + rel->r_offset - d_offset);
8540 /* Zap the reloc on the _tls_get_addr call too. */
8541 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8542 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8543 goto again;
727fc41e
AM
8544 }
8545 break;
7619e7c7
AM
8546 }
8547
8548 /* Handle other relocations that tweak non-addend part of insn. */
8549 branch_bit = 0;
8550 switch (r_type)
8551 {
8552 default:
8553 break;
8554
8555 /* Branch taken prediction relocations. */
8556 case R_PPC_ADDR14_BRTAKEN:
8557 case R_PPC_REL14_BRTAKEN:
8558 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8559 /* Fall through. */
7619e7c7 8560
4cc11e76 8561 /* Branch not taken prediction relocations. */
7619e7c7
AM
8562 case R_PPC_ADDR14_BRNTAKEN:
8563 case R_PPC_REL14_BRNTAKEN:
91d6fa6a 8564 {
23cedd1d 8565 unsigned int insn;
7619e7c7 8566
95f0d0d2 8567 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8568 insn &= ~BRANCH_PREDICT_BIT;
8569 insn |= branch_bit;
7619e7c7 8570
91d6fa6a
NC
8571 from = (rel->r_offset
8572 + input_section->output_offset
8573 + input_section->output_section->vma);
7619e7c7 8574
91d6fa6a
NC
8575 /* Invert 'y' bit if not the default. */
8576 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8577 insn ^= BRANCH_PREDICT_BIT;
8578
95f0d0d2 8579 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a 8580 }
08be3224
AM
8581 break;
8582
8583 case R_PPC_PLT16_HA:
8584 {
8585 unsigned int insn;
8586
8587 insn = bfd_get_32 (input_bfd,
8588 contents + rel->r_offset - d_offset);
8589 if ((insn & (0x3f << 26)) == 15u << 26
8590 && (insn & (0x1f << 16)) != 0)
8591 {
8592 if (!bfd_link_pic (info))
8593 {
8594 /* Convert addis to lis. */
8595 insn &= ~(0x1f << 16);
8596 bfd_put_32 (input_bfd, insn,
8597 contents + rel->r_offset - d_offset);
8598 }
8599 }
8600 else if (bfd_link_pic (info))
8601 info->callbacks->einfo
8602 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8603 input_bfd, input_section, rel->r_offset,
8604 "R_PPC_PLT16_HA", insn);
8605 }
8606 break;
252b5132
RH
8607 }
8608
d3e454b9
AM
8609 if (ELIMINATE_COPY_RELOCS
8610 && h != NULL
8611 && !h->def_regular
8612 && h->protected_def
8613 && ppc_elf_hash_entry (h)->has_addr16_ha
8614 && ppc_elf_hash_entry (h)->has_addr16_lo
8615 && htab->params->pic_fixup > 0)
8616 {
8617 /* Convert lis;addi or lis;load/store accessing a protected
8618 variable defined in a shared library to PIC. */
8619 unsigned int insn;
8620
8621 if (r_type == R_PPC_ADDR16_HA)
8622 {
95f0d0d2 8623 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8624 contents + rel->r_offset - d_offset);
8625 if ((insn & (0x3f << 26)) == (15u << 26)
8626 && (insn & (0x1f << 16)) == 0 /* lis */)
8627 {
8628 bfd_byte *p;
8629 bfd_vma off;
8630 bfd_vma got_addr;
8631
8632 p = (contents + input_section->size
8633 - relax_info->workaround_size
8634 - relax_info->picfixup_size
8635 + picfixup_size);
8636 off = (p - contents) - (rel->r_offset - d_offset);
8637 if (off > 0x1fffffc || (off & 3) != 0)
8638 info->callbacks->einfo
174d0a74 8639 (_("%H: fixup branch overflow\n"),
d3e454b9
AM
8640 input_bfd, input_section, rel->r_offset);
8641
95f0d0d2 8642 bfd_put_32 (input_bfd, B | off,
d3e454b9 8643 contents + rel->r_offset - d_offset);
ce558b89
AM
8644 got_addr = (htab->elf.sgot->output_section->vma
8645 + htab->elf.sgot->output_offset
d3e454b9 8646 + (h->got.offset & ~1));
c316a17c
AM
8647 wrel->r_offset = (p - contents) + d_offset;
8648 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8649 wrel->r_addend = got_addr;
d3e454b9 8650 insn &= ~0xffff;
4aef7643 8651 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8652 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8653
8654 /* Convert lis to lwz, loading address from GOT. */
8655 insn &= ~0xffff;
8656 insn ^= (32u ^ 15u) << 26;
8657 insn |= (insn & (0x1f << 21)) >> 5;
8658 insn |= got_addr & 0xffff;
95f0d0d2 8659 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8660
95f0d0d2 8661 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8662 picfixup_size += 12;
8663
8664 /* Use one of the spare relocs, so --emit-relocs
8665 output is reasonable. */
8666 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8667 wrel++, rel++;
8668 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8669 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8670 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8671
8672 /* Continue on as if we had a got reloc, to output
8673 dynamic reloc. */
8674 r_type = R_PPC_GOT16_LO;
8675 }
8676 else
2c4d9cbe 8677 _bfd_error_handler
695344c0 8678 /* xgettext:c-format */
2dcf00ce
AM
8679 (_("%pB(%pA+%#" PRIx64 "): error: "
8680 "%s with unexpected instruction %#x"),
8681 input_bfd, input_section, (uint64_t) rel->r_offset,
d3e454b9
AM
8682 "R_PPC_ADDR16_HA", insn);
8683 }
8684 else if (r_type == R_PPC_ADDR16_LO)
8685 {
95f0d0d2 8686 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8687 contents + rel->r_offset - d_offset);
8688 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8689 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8690 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8691 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8692 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8693 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8694 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8695 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8696 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8697 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8698 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8699 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8700 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8701 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8702 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8703 && (insn & 3) != 1)
8704 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8705 && ((insn & 3) == 0 || (insn & 3) == 3)))
8706 {
8707 /* Arrange to apply the reloc addend, if any. */
8708 relocation = 0;
8709 unresolved_reloc = FALSE;
8710 rel->r_info = ELF32_R_INFO (0, r_type);
8711 }
8712 else
2c4d9cbe 8713 _bfd_error_handler
695344c0 8714 /* xgettext:c-format */
2dcf00ce
AM
8715 (_("%pB(%pA+%#" PRIx64 "): error: "
8716 "%s with unexpected instruction %#x"),
8717 input_bfd, input_section, (uint64_t) rel->r_offset,
d3e454b9
AM
8718 "R_PPC_ADDR16_LO", insn);
8719 }
8720 }
8721
e054468f 8722 ifunc = NULL;
25f23106 8723 if (!htab->is_vxworks)
e054468f 8724 {
de972ffa
AM
8725 struct plt_entry *ent;
8726
e054468f
AM
8727 if (h != NULL)
8728 {
8729 if (h->type == STT_GNU_IFUNC)
8730 ifunc = &h->plt.plist;
8731 }
de972ffa
AM
8732 else if (local_got_offsets != NULL
8733 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8734 {
de972ffa 8735 struct plt_entry **local_plt;
e054468f 8736
de972ffa
AM
8737 local_plt = (struct plt_entry **) (local_got_offsets
8738 + symtab_hdr->sh_info);
8739 ifunc = local_plt + r_symndx;
e054468f 8740 }
e054468f 8741
de972ffa
AM
8742 ent = NULL;
8743 if (ifunc != NULL
0e1862bb 8744 && (!bfd_link_pic (info)
08be3224
AM
8745 || is_branch_reloc (r_type)
8746 || r_type == R_PPC_PLT16_LO
8747 || r_type == R_PPC_PLT16_HI
8748 || r_type == R_PPC_PLT16_HA))
de972ffa
AM
8749 {
8750 addend = 0;
08be3224
AM
8751 if (bfd_link_pic (info)
8752 && (r_type == R_PPC_PLTREL24
8753 || r_type == R_PPC_PLT16_LO
8754 || r_type == R_PPC_PLT16_HI
8755 || r_type == R_PPC_PLT16_HA))
de972ffa
AM
8756 addend = rel->r_addend;
8757 ent = find_plt_ent (ifunc, got2, addend);
8758 }
8759 if (ent != NULL)
8760 {
888a7fc3
AM
8761 if (bfd_link_pic (info)
8762 && ent->sec != got2
8763 && htab->plt_type != PLT_NEW
8764 && (!htab->elf.dynamic_sections_created
8765 || h == NULL
8766 || h->dynindx == -1))
8767 {
8768 /* Uh oh, we are going to create a pic glink stub
8769 for an ifunc (here for h == NULL and later in
8770 finish_dynamic_symbol for h != NULL), and
8771 apparently are using code compiled with
8772 -mbss-plt. The difficulty is that -mbss-plt code
8773 gives no indication via a magic PLTREL24 addend
8774 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8775 is pointing into a .got2 section (and how far
8776 into .got2). */
8777 info->callbacks->einfo
695344c0 8778 /* xgettext:c-format */
174d0a74 8779 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
888a7fc3
AM
8780 input_bfd, input_section, rel->r_offset, sym_name);
8781 }
e054468f
AM
8782
8783 unresolved_reloc = FALSE;
8784 if (htab->plt_type == PLT_NEW
8785 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8786 || h == NULL
8787 || h->dynindx == -1)
e054468f
AM
8788 relocation = (htab->glink->output_section->vma
8789 + htab->glink->output_offset
8790 + (ent->glink_offset & ~1));
8791 else
ce558b89
AM
8792 relocation = (htab->elf.splt->output_section->vma
8793 + htab->elf.splt->output_offset
e054468f
AM
8794 + ent->plt.offset);
8795 }
8796 }
8797
7619e7c7 8798 addend = rel->r_addend;
23cedd1d 8799 save_unresolved_reloc = unresolved_reloc;
7619e7c7 8800 howto = NULL;
55fd94b0
AM
8801 if (r_type < R_PPC_max)
8802 howto = ppc_elf_howto_table[r_type];
9a23f96e
AM
8803
8804 switch (r_type)
8805 {
8806 default:
8807 break;
8808
8809 case R_PPC_TPREL16_HA:
8810 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8811 {
8812 bfd_byte *p = contents + (rel->r_offset & ~3);
8813 unsigned int insn = bfd_get_32 (input_bfd, p);
8814 if ((insn & ((0x3f << 26) | 0x1f << 16))
8815 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
8816 /* xgettext:c-format */
8817 info->callbacks->minfo
8818 (_("%H: warning: %s unexpected insn %#x.\n"),
8819 input_bfd, input_section, rel->r_offset, howto->name, insn);
8820 else
8821 bfd_put_32 (input_bfd, NOP, p);
8822 }
8823 break;
8824
8825 case R_PPC_TPREL16_LO:
8826 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8827 {
8828 bfd_byte *p = contents + (rel->r_offset & ~3);
8829 unsigned int insn = bfd_get_32 (input_bfd, p);
8830 insn &= ~(0x1f << 16);
8831 insn |= 2 << 16;
8832 bfd_put_32 (input_bfd, insn, p);
8833 }
8834 break;
8835 }
8836
8837 tls_type = 0;
7619e7c7 8838 switch (r_type)
252b5132
RH
8839 {
8840 default:
cf97bcb0
AM
8841 /* xgettext:c-format */
8842 _bfd_error_handler (_("%pB: %s unsupported"),
8843 input_bfd, howto->name);
252b5132
RH
8844
8845 bfd_set_error (bfd_error_bad_value);
b34976b6 8846 ret = FALSE;
c316a17c 8847 goto copy_reloc;
252b5132 8848
7619e7c7
AM
8849 case R_PPC_NONE:
8850 case R_PPC_TLS:
727fc41e
AM
8851 case R_PPC_TLSGD:
8852 case R_PPC_TLSLD:
7619e7c7
AM
8853 case R_PPC_EMB_MRKREF:
8854 case R_PPC_GNU_VTINHERIT:
8855 case R_PPC_GNU_VTENTRY:
c316a17c 8856 goto copy_reloc;
7595d193 8857
7619e7c7
AM
8858 /* GOT16 relocations. Like an ADDR16 using the symbol's
8859 address in the GOT as relocation value instead of the
8860 symbol's value itself. Also, create a GOT entry for the
8861 symbol and put the symbol value there. */
8862 case R_PPC_GOT_TLSGD16:
8863 case R_PPC_GOT_TLSGD16_LO:
8864 case R_PPC_GOT_TLSGD16_HI:
8865 case R_PPC_GOT_TLSGD16_HA:
8866 tls_type = TLS_TLS | TLS_GD;
8867 goto dogot;
8868
8869 case R_PPC_GOT_TLSLD16:
8870 case R_PPC_GOT_TLSLD16_LO:
8871 case R_PPC_GOT_TLSLD16_HI:
8872 case R_PPC_GOT_TLSLD16_HA:
8873 tls_type = TLS_TLS | TLS_LD;
8874 goto dogot;
8875
8876 case R_PPC_GOT_TPREL16:
8877 case R_PPC_GOT_TPREL16_LO:
8878 case R_PPC_GOT_TPREL16_HI:
8879 case R_PPC_GOT_TPREL16_HA:
8880 tls_type = TLS_TLS | TLS_TPREL;
8881 goto dogot;
8882
8883 case R_PPC_GOT_DTPREL16:
8884 case R_PPC_GOT_DTPREL16_LO:
8885 case R_PPC_GOT_DTPREL16_HI:
8886 case R_PPC_GOT_DTPREL16_HA:
8887 tls_type = TLS_TLS | TLS_DTPREL;
8888 goto dogot;
8889
8890 case R_PPC_GOT16:
8891 case R_PPC_GOT16_LO:
8892 case R_PPC_GOT16_HI:
8893 case R_PPC_GOT16_HA:
727fc41e 8894 tls_mask = 0;
7619e7c7
AM
8895 dogot:
8896 {
8897 /* Relocation is to the entry for this symbol in the global
8898 offset table. */
8899 bfd_vma off;
8900 bfd_vma *offp;
8901 unsigned long indx;
8902
ce558b89 8903 if (htab->elf.sgot == NULL)
7619e7c7
AM
8904 abort ();
8905
8906 indx = 0;
8907 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8908 && (h == NULL
f5385ebf 8909 || !h->def_dynamic))
7619e7c7
AM
8910 offp = &htab->tlsld_got.offset;
8911 else if (h != NULL)
8912 {
f0158f44
AM
8913 if (!htab->elf.dynamic_sections_created
8914 || h->dynindx == -1
8915 || SYMBOL_REFERENCES_LOCAL (info, h)
21d68fcd 8916 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
7619e7c7
AM
8917 /* This is actually a static link, or it is a
8918 -Bsymbolic link and the symbol is defined
8919 locally, or the symbol was forced to be local
8920 because of a version file. */
8921 ;
8922 else
8923 {
8924 indx = h->dynindx;
8925 unresolved_reloc = FALSE;
8926 }
8927 offp = &h->got.offset;
8928 }
8929 else
8930 {
8931 if (local_got_offsets == NULL)
8932 abort ();
8933 offp = &local_got_offsets[r_symndx];
8934 }
8935
8936 /* The offset must always be a multiple of 4. We use the
8937 least significant bit to record whether we have already
8938 processed this entry. */
8939 off = *offp;
8940 if ((off & 1) != 0)
8941 off &= ~1;
8942 else
8943 {
37da22e5
AM
8944 unsigned int tls_m = ((tls_mask & TLS_TLS) != 0
8945 ? tls_mask & (TLS_LD | TLS_GD | TLS_DTPREL
8946 | TLS_TPREL | TLS_TPRELGD)
8947 : 0);
70bccea4
AM
8948
8949 if (offp == &htab->tlsld_got.offset)
8950 tls_m = TLS_LD;
8951 else if (h == NULL
f5385ebf 8952 || !h->def_dynamic)
70bccea4
AM
8953 tls_m &= ~TLS_LD;
8954
8955 /* We might have multiple got entries for this sym.
8956 Initialize them all. */
8957 do
7619e7c7 8958 {
70bccea4
AM
8959 int tls_ty = 0;
8960
8961 if ((tls_m & TLS_LD) != 0)
7619e7c7 8962 {
70bccea4
AM
8963 tls_ty = TLS_TLS | TLS_LD;
8964 tls_m &= ~TLS_LD;
8965 }
8966 else if ((tls_m & TLS_GD) != 0)
8967 {
8968 tls_ty = TLS_TLS | TLS_GD;
8969 tls_m &= ~TLS_GD;
8970 }
8971 else if ((tls_m & TLS_DTPREL) != 0)
8972 {
8973 tls_ty = TLS_TLS | TLS_DTPREL;
8974 tls_m &= ~TLS_DTPREL;
8975 }
8976 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8977 {
8978 tls_ty = TLS_TLS | TLS_TPREL;
8979 tls_m = 0;
7619e7c7 8980 }
7619e7c7 8981
70bccea4 8982 /* Generate relocs for the dynamic linker. */
f0158f44
AM
8983 if (indx != 0
8984 || (bfd_link_pic (info)
8985 && (h == NULL
21d68fcd 8986 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
f15d0b54
AM
8987 || offp == &htab->tlsld_got.offset)
8988 && !(tls_ty == (TLS_TLS | TLS_TPREL)
8989 && bfd_link_executable (info)
8990 && SYMBOL_REFERENCES_LOCAL (info, h))))
7619e7c7 8991 {
ce558b89 8992 asection *rsec = htab->elf.srelgot;
91d6fa6a 8993 bfd_byte * loc;
91e21fb7 8994
0bed072f 8995 if (ifunc != NULL)
82e66161
AM
8996 {
8997 rsec = htab->elf.irelplt;
8998 if (indx == 0)
8999 htab->local_ifunc_resolver = 1;
9000 else if (is_static_defined (h))
9001 htab->maybe_local_ifunc_resolver = 1;
9002 }
ce558b89
AM
9003 outrel.r_offset = (htab->elf.sgot->output_section->vma
9004 + htab->elf.sgot->output_offset
70bccea4 9005 + off);
e515b051 9006 outrel.r_addend = 0;
70bccea4
AM
9007 if (tls_ty & (TLS_LD | TLS_GD))
9008 {
9009 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
9010 if (tls_ty == (TLS_TLS | TLS_GD))
9011 {
25f23106
AM
9012 loc = rsec->contents;
9013 loc += (rsec->reloc_count++
70bccea4
AM
9014 * sizeof (Elf32_External_Rela));
9015 bfd_elf32_swap_reloca_out (output_bfd,
9016 &outrel, loc);
e515b051 9017 outrel.r_offset += 4;
70bccea4
AM
9018 outrel.r_info
9019 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
9020 }
9021 }
9022 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
9023 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
9024 else if (tls_ty == (TLS_TLS | TLS_TPREL))
9025 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 9026 else if (indx != 0)
70bccea4 9027 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
9028 else if (ifunc != NULL)
9029 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9030 else
9031 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 9032 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
9033 {
9034 outrel.r_addend += relocation;
9035 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
9036 {
9037 if (htab->elf.tls_sec == NULL)
9038 outrel.r_addend = 0;
9039 else
9040 outrel.r_addend -= htab->elf.tls_sec->vma;
9041 }
e515b051 9042 }
25f23106
AM
9043 loc = rsec->contents;
9044 loc += (rsec->reloc_count++
70bccea4
AM
9045 * sizeof (Elf32_External_Rela));
9046 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
9047 }
9048
70bccea4
AM
9049 /* Init the .got section contents if we're not
9050 emitting a reloc. */
9051 else
7619e7c7 9052 {
70bccea4
AM
9053 bfd_vma value = relocation;
9054
f0158f44 9055 if (tls_ty != 0)
70bccea4 9056 {
989f9879
AM
9057 if (htab->elf.tls_sec == NULL)
9058 value = 0;
9059 else
9060 {
f0158f44
AM
9061 if (tls_ty & TLS_LD)
9062 value = 0;
9063 else
9064 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
676ee2b5 9065 if (tls_ty & TLS_TPREL)
989f9879
AM
9066 value += DTP_OFFSET - TP_OFFSET;
9067 }
70bccea4 9068
f0158f44 9069 if (tls_ty & (TLS_LD | TLS_GD))
7b609f53 9070 {
95f0d0d2 9071 bfd_put_32 (input_bfd, value,
ce558b89 9072 htab->elf.sgot->contents + off + 4);
676ee2b5 9073 value = 1;
7b609f53 9074 }
70bccea4 9075 }
95f0d0d2 9076 bfd_put_32 (input_bfd, value,
ce558b89 9077 htab->elf.sgot->contents + off);
7619e7c7 9078 }
70bccea4
AM
9079
9080 off += 4;
9081 if (tls_ty & (TLS_LD | TLS_GD))
9082 off += 4;
7619e7c7 9083 }
70bccea4
AM
9084 while (tls_m != 0);
9085
9086 off = *offp;
9087 *offp = off | 1;
7619e7c7
AM
9088 }
9089
9090 if (off >= (bfd_vma) -2)
9091 abort ();
9092
70bccea4
AM
9093 if ((tls_type & TLS_TLS) != 0)
9094 {
9095 if (tls_type != (TLS_TLS | TLS_LD))
9096 {
9097 if ((tls_mask & TLS_LD) != 0
9098 && !(h == NULL
f5385ebf 9099 || !h->def_dynamic))
70bccea4
AM
9100 off += 8;
9101 if (tls_type != (TLS_TLS | TLS_GD))
9102 {
9103 if ((tls_mask & TLS_GD) != 0)
9104 off += 8;
9105 if (tls_type != (TLS_TLS | TLS_DTPREL))
9106 {
9107 if ((tls_mask & TLS_DTPREL) != 0)
9108 off += 4;
9109 }
9110 }
9111 }
9112 }
9113
d3e454b9
AM
9114 /* If here for a picfixup, we're done. */
9115 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 9116 goto copy_reloc;
d3e454b9 9117
ce558b89
AM
9118 relocation = (htab->elf.sgot->output_section->vma
9119 + htab->elf.sgot->output_offset
e87d4038
AM
9120 + off
9121 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
9122
9123 /* Addends on got relocations don't make much sense.
9124 x+off@got is actually x@got+off, and since the got is
9125 generated by a hash table traversal, the value in the
9126 got at entry m+n bears little relation to the entry m. */
9127 if (addend != 0)
25f53a85 9128 info->callbacks->einfo
695344c0 9129 /* xgettext:c-format */
174d0a74 9130 (_("%H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 9131 input_bfd, input_section, rel->r_offset,
7b609f53 9132 howto->name,
7619e7c7
AM
9133 sym_name);
9134 }
86c95733 9135 break;
7619e7c7 9136
86c95733 9137 /* Relocations that need no special processing. */
7619e7c7 9138 case R_PPC_LOCAL24PC:
252b5132
RH
9139 /* It makes no sense to point a local relocation
9140 at a symbol not in this object. */
7b609f53 9141 if (unresolved_reloc)
252b5132 9142 {
1a72702b
AM
9143 (*info->callbacks->undefined_symbol) (info,
9144 h->root.root.string,
9145 input_bfd,
9146 input_section,
9147 rel->r_offset,
9148 TRUE);
c316a17c 9149 goto copy_reloc;
252b5132 9150 }
888a7fc3
AM
9151 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
9152 {
9153 /* @local on an ifunc does not really make sense since
9154 the ifunc resolver can take you anywhere. More
9155 seriously, calls to ifuncs must go through a plt call
9156 stub, and for pic the plt call stubs uses r30 to
9157 access the PLT. The problem is that a call that is
9158 local won't have the +32k reloc addend trick marking
9159 -fPIC code, so the linker won't know whether r30 is
9160 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 9161 /* xgettext:c-format */
174d0a74 9162 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
888a7fc3
AM
9163 input_bfd, input_section, rel->r_offset,
9164 h->root.root.string);
9165 }
252b5132
RH
9166 break;
9167
7619e7c7
AM
9168 case R_PPC_DTPREL16:
9169 case R_PPC_DTPREL16_LO:
9170 case R_PPC_DTPREL16_HI:
9171 case R_PPC_DTPREL16_HA:
989f9879
AM
9172 if (htab->elf.tls_sec != NULL)
9173 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
9174 break;
9175
70bccea4
AM
9176 /* Relocations that may need to be propagated if this is a shared
9177 object. */
7619e7c7
AM
9178 case R_PPC_TPREL16:
9179 case R_PPC_TPREL16_LO:
9180 case R_PPC_TPREL16_HI:
9181 case R_PPC_TPREL16_HA:
766bc656
AM
9182 if (h != NULL
9183 && h->root.type == bfd_link_hash_undefweak
9184 && h->dynindx == -1)
9185 {
9186 /* Make this relocation against an undefined weak symbol
9187 resolve to zero. This is really just a tweak, since
9188 code using weak externs ought to check that they are
9189 defined before using them. */
9190 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 9191 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
9192 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
9193 if (insn != 0)
95f0d0d2 9194 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
9195 break;
9196 }
989f9879
AM
9197 if (htab->elf.tls_sec != NULL)
9198 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7 9199 /* The TPREL16 relocs shouldn't really be used in shared
7c8bbca5
AM
9200 libs or with non-local symbols as that will result in
9201 DT_TEXTREL being set, but support them anyway. */
7619e7c7
AM
9202 goto dodyn;
9203
9204 case R_PPC_TPREL32:
989f9879
AM
9205 if (htab->elf.tls_sec != NULL)
9206 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
9207 goto dodyn;
9208
9209 case R_PPC_DTPREL32:
989f9879
AM
9210 if (htab->elf.tls_sec != NULL)
9211 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
9212 goto dodyn;
9213
e515b051
AM
9214 case R_PPC_DTPMOD32:
9215 relocation = 1;
9216 addend = 0;
9217 goto dodyn;
9218
d7128ce4
AM
9219 case R_PPC_REL16:
9220 case R_PPC_REL16_LO:
9221 case R_PPC_REL16_HI:
9222 case R_PPC_REL16_HA:
a680de9a 9223 case R_PPC_REL16DX_HA:
d7128ce4
AM
9224 break;
9225
7619e7c7 9226 case R_PPC_REL32:
625af618
AM
9227 if (h == NULL || h == htab->elf.hgot)
9228 break;
9229 /* fall through */
9230
9231 case R_PPC_ADDR32:
9232 case R_PPC_ADDR16:
9233 case R_PPC_ADDR16_LO:
9234 case R_PPC_ADDR16_HI:
9235 case R_PPC_ADDR16_HA:
9236 case R_PPC_UADDR32:
9237 case R_PPC_UADDR16:
9238 goto dodyn;
9239
b9c361e0
JL
9240 case R_PPC_VLE_REL8:
9241 case R_PPC_VLE_REL15:
9242 case R_PPC_VLE_REL24:
625af618 9243 case R_PPC_REL24:
7619e7c7
AM
9244 case R_PPC_REL14:
9245 case R_PPC_REL14_BRTAKEN:
9246 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
9247 /* If these relocations are not to a named symbol, they can be
9248 handled right here, no need to bother the dynamic linker. */
89200bf8 9249 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 9250 || h == htab->elf.hgot)
252b5132 9251 break;
70bccea4 9252 /* fall through */
252b5132 9253
7619e7c7 9254 case R_PPC_ADDR24:
7619e7c7
AM
9255 case R_PPC_ADDR14:
9256 case R_PPC_ADDR14_BRTAKEN:
9257 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 9258 if (h != NULL && !bfd_link_pic (info))
625af618
AM
9259 break;
9260 /* fall through */
9261
7619e7c7 9262 dodyn:
3348747a
NS
9263 if ((input_section->flags & SEC_ALLOC) == 0
9264 || is_vxworks_tls)
c87b5a93 9265 break;
c87b5a93 9266
287c7eaf
AM
9267 if (bfd_link_pic (info)
9268 ? ((h == NULL
9269 || ppc_elf_hash_entry (h)->dyn_relocs != NULL)
9270 && ((h != NULL && pc_dynrelocs (h))
9271 || must_be_dyn_reloc (info, r_type)))
9272 : (h != NULL
9273 && ppc_elf_hash_entry (h)->dyn_relocs != NULL))
252b5132 9274 {
0bb2d96a 9275 int skip;
f95f8542
AM
9276 bfd_byte *loc;
9277 asection *sreloc;
82e66161
AM
9278 long indx = 0;
9279
252b5132 9280#ifdef DEBUG
55fd94b0
AM
9281 fprintf (stderr, "ppc_elf_relocate_section needs to "
9282 "create relocation for %s\n",
70bccea4
AM
9283 (h && h->root.root.string
9284 ? h->root.root.string : "<unknown>"));
252b5132
RH
9285#endif
9286
9287 /* When generating a shared object, these relocations
70bccea4
AM
9288 are copied into the output file to be resolved at run
9289 time. */
0bb2d96a 9290 skip = 0;
5b914448
AM
9291 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
9292 input_section,
9293 rel->r_offset);
0bb2d96a
JJ
9294 if (outrel.r_offset == (bfd_vma) -1
9295 || outrel.r_offset == (bfd_vma) -2)
9296 skip = (int) outrel.r_offset;
252b5132
RH
9297 outrel.r_offset += (input_section->output_section->vma
9298 + input_section->output_offset);
9299
9300 if (skip)
9301 memset (&outrel, 0, sizeof outrel);
21d68fcd 9302 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 9303 {
82e66161
AM
9304 indx = h->dynindx;
9305 BFD_ASSERT (indx != -1);
7619e7c7 9306 unresolved_reloc = FALSE;
82e66161 9307 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
9308 outrel.r_addend = rel->r_addend;
9309 }
9310 else
9311 {
47388f4c
AM
9312 outrel.r_addend = relocation + rel->r_addend;
9313
25f23106 9314 if (r_type != R_PPC_ADDR32)
252b5132 9315 {
25f23106
AM
9316 if (ifunc != NULL)
9317 {
9318 /* If we get here when building a static
9319 executable, then the libc startup function
9320 responsible for applying indirect function
9321 relocations is going to complain about
9322 the reloc type.
9323 If we get here when building a dynamic
9324 executable, it will be because we have
9325 a text relocation. The dynamic loader
9326 will set the text segment writable and
9327 non-executable to apply text relocations.
9328 So we'll segfault when trying to run the
9329 indirection function to resolve the reloc. */
25f53a85 9330 info->callbacks->einfo
695344c0 9331 /* xgettext:c-format */
174d0a74 9332 (_("%H: relocation %s for indirect "
25f53a85
AM
9333 "function %s unsupported\n"),
9334 input_bfd, input_section, rel->r_offset,
25f23106
AM
9335 howto->name,
9336 sym_name);
9337 ret = FALSE;
9338 }
cf35638d 9339 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 9340 ;
252b5132
RH
9341 else if (sec == NULL || sec->owner == NULL)
9342 {
9343 bfd_set_error (bfd_error_bad_value);
89200bf8 9344 ret = FALSE;
252b5132
RH
9345 }
9346 else
9347 {
9348 asection *osec;
9349
47388f4c
AM
9350 /* We are turning this relocation into one
9351 against a section symbol. It would be
9352 proper to subtract the symbol's value,
9353 osec->vma, from the emitted reloc addend,
25f23106
AM
9354 but ld.so expects buggy relocs.
9355 FIXME: Why not always use a zero index? */
252b5132
RH
9356 osec = sec->output_section;
9357 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
9358 if (indx == 0)
9359 {
9360 osec = htab->elf.text_index_section;
9361 indx = elf_section_data (osec)->dynindx;
9362 }
9363 BFD_ASSERT (indx != 0);
252b5132 9364#ifdef DEBUG
74541ad4 9365 if (indx == 0)
e460dd0d 9366 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
9367 indx, osec->name, osec->flags,
9368 h->root.root.string);
252b5132
RH
9369#endif
9370 }
9371
9372 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 9373 }
25f23106
AM
9374 else if (ifunc != NULL)
9375 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9376 else
9377 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
9378 }
9379
82e66161
AM
9380 sreloc = elf_section_data (input_section)->sreloc;
9381 if (ifunc)
9382 {
9383 sreloc = htab->elf.irelplt;
9384 if (indx == 0)
9385 htab->local_ifunc_resolver = 1;
9386 else if (is_static_defined (h))
9387 htab->maybe_local_ifunc_resolver = 1;
9388 }
9389 if (sreloc == NULL)
9390 return FALSE;
9391
947216bf
AM
9392 loc = sreloc->contents;
9393 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
9394 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 9395
2243deae 9396 if (skip == -1)
c316a17c 9397 goto copy_reloc;
2243deae 9398
f0158f44
AM
9399 /* This reloc will be computed at runtime. Clear the memory
9400 so that it contains a predictable value for prelink. */
9401 if (!skip)
2243deae
L
9402 {
9403 relocation = howto->pc_relative ? outrel.r_offset : 0;
9404 addend = 0;
9405 break;
9406 }
252b5132 9407 }
252b5132
RH
9408 break;
9409
32af9f6e
AM
9410 case R_PPC_RELAX_PLT:
9411 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
9412 if (h != NULL)
9413 {
32af9f6e
AM
9414 struct plt_entry *ent;
9415 bfd_vma got2_addend = 0;
9416
9417 if (r_type == R_PPC_RELAX_PLTREL24)
9418 {
0e1862bb 9419 if (bfd_link_pic (info))
32af9f6e
AM
9420 got2_addend = addend;
9421 addend = 0;
9422 }
9423 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
9424 if (htab->plt_type == PLT_NEW)
9425 relocation = (htab->glink->output_section->vma
9426 + htab->glink->output_offset
9427 + ent->glink_offset);
9428 else
ce558b89
AM
9429 relocation = (htab->elf.splt->output_section->vma
9430 + htab->elf.splt->output_offset
de972ffa
AM
9431 + ent->plt.offset);
9432 }
1a0670f3 9433 /* Fall through. */
b4a38de6 9434
32af9f6e 9435 case R_PPC_RELAX:
9abc968f 9436 {
53291d1f
AM
9437 const int *stub;
9438 size_t size;
9439 size_t insn_offset = rel->r_offset;
9440 unsigned int insn;
9abc968f 9441
0e1862bb 9442 if (bfd_link_pic (info))
53291d1f
AM
9443 {
9444 relocation -= (input_section->output_section->vma
9445 + input_section->output_offset
9446 + rel->r_offset - 4);
9447 stub = shared_stub_entry;
95f0d0d2
AM
9448 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
9449 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
9450 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
9451 stub += 3;
9452 size = ARRAY_SIZE (shared_stub_entry) - 3;
9453 }
9454 else
9455 {
9456 stub = stub_entry;
9457 size = ARRAY_SIZE (stub_entry);
9458 }
9abc968f 9459
9abc968f 9460 relocation += addend;
0e1862bb 9461 if (bfd_link_relocatable (info))
53291d1f
AM
9462 relocation = 0;
9463
9464 /* First insn is HA, second is LO. */
9465 insn = *stub++;
9466 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 9467 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9468 insn_offset += 4;
9469
9470 insn = *stub++;
9471 insn |= relocation & 0xffff;
95f0d0d2 9472 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9473 insn_offset += 4;
9474 size -= 2;
9475
9476 while (size != 0)
9477 {
9478 insn = *stub++;
9479 --size;
95f0d0d2 9480 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9481 insn_offset += 4;
9482 }
9bc4e62b
NS
9483
9484 /* Rewrite the reloc and convert one of the trailing nop
9485 relocs to describe this relocation. */
9486 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9487 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
9488 wrel->r_offset = rel->r_offset + d_offset;
9489 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9490 wrel->r_addend = rel->r_addend;
9491 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9492 wrel++, rel++;
9493 wrel->r_offset += 4;
9494 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 9495 }
8517fae7 9496 continue;
deaaf2f3 9497
70bccea4 9498 /* Indirect .sdata relocation. */
7619e7c7 9499 case R_PPC_EMB_SDAI16:
c9a2f333 9500 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
9501 if (!is_static_defined (htab->sdata[0].sym))
9502 {
9503 unresolved_reloc = TRUE;
9504 break;
9505 }
7619e7c7 9506 relocation
76750a2f
AM
9507 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9508 h, relocation, rel);
bd6c6e2b 9509 addend = 0;
252b5132
RH
9510 break;
9511
70bccea4 9512 /* Indirect .sdata2 relocation. */
7619e7c7 9513 case R_PPC_EMB_SDA2I16:
c9a2f333 9514 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9515 if (!is_static_defined (htab->sdata[1].sym))
9516 {
9517 unresolved_reloc = TRUE;
9518 break;
9519 }
7619e7c7 9520 relocation
76750a2f
AM
9521 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9522 h, relocation, rel);
bd6c6e2b 9523 addend = 0;
252b5132
RH
9524 break;
9525
70bccea4
AM
9526 /* Handle the TOC16 reloc. We want to use the offset within the .got
9527 section, not the actual VMA. This is appropriate when generating
9528 an embedded ELF object, for which the .got section acts like the
9529 AIX .toc section. */
7619e7c7 9530 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9531 if (sec == NULL || sec->output_section == NULL)
9532 {
9533 unresolved_reloc = TRUE;
9534 break;
9535 }
a0f49396
NC
9536 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9537 ".got") == 0
9538 || strcmp (bfd_get_section_name (sec->owner, sec),
9539 ".cgot") == 0);
252b5132 9540
3b4f3a11 9541 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9542 break;
9543
7619e7c7 9544 case R_PPC_PLTREL24:
f75e0e33
AM
9545 if (h != NULL && ifunc == NULL)
9546 {
cbf95972
AM
9547 struct plt_entry *ent;
9548
9549 ent = find_plt_ent (&h->plt.plist, got2,
9550 bfd_link_pic (info) ? addend : 0);
f75e0e33 9551 if (ent == NULL
ce558b89 9552 || htab->elf.splt == NULL)
f75e0e33
AM
9553 {
9554 /* We didn't make a PLT entry for this symbol. This
9555 happens when statically linking PIC code, or when
9556 using -Bsymbolic. */
9557 }
9558 else
9559 {
9560 /* Relocation is to the entry for this symbol in the
9561 procedure linkage table. */
9562 unresolved_reloc = FALSE;
9563 if (htab->plt_type == PLT_NEW)
9564 relocation = (htab->glink->output_section->vma
9565 + htab->glink->output_offset
9566 + ent->glink_offset);
9567 else
ce558b89
AM
9568 relocation = (htab->elf.splt->output_section->vma
9569 + htab->elf.splt->output_offset
f75e0e33
AM
9570 + ent->plt.offset);
9571 }
9572 }
252b5132 9573
f75e0e33
AM
9574 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9575 addend specifies the GOT pointer offset within .got2.
9576 Don't apply it to the relocation field. */
9577 addend = 0;
8da6118f 9578 break;
252b5132 9579
23cedd1d
AM
9580 case R_PPC_PLTSEQ:
9581 case R_PPC_PLTCALL:
08be3224
AM
9582 case R_PPC_PLT16_LO:
9583 case R_PPC_PLT16_HI:
9584 case R_PPC_PLT16_HA:
2d7ad24e 9585 plt_list = NULL;
08be3224
AM
9586 if (h != NULL)
9587 plt_list = &h->plt.plist;
2d7ad24e
AM
9588 else if (ifunc != NULL)
9589 plt_list = ifunc;
9590 else if (local_got_offsets != NULL)
9591 {
9592 struct plt_entry **local_plt;
9593 local_plt = (struct plt_entry **) (local_got_offsets
9594 + symtab_hdr->sh_info);
9595 plt_list = local_plt + r_symndx;
9596 }
08be3224
AM
9597 unresolved_reloc = TRUE;
9598 if (plt_list != NULL)
9599 {
9600 struct plt_entry *ent;
9601
9602 ent = find_plt_ent (plt_list, got2,
9603 bfd_link_pic (info) ? addend : 0);
2d7ad24e 9604 if (ent != NULL && ent->plt.offset != (bfd_vma) -1)
08be3224 9605 {
2d7ad24e
AM
9606 asection *plt;
9607
08be3224 9608 unresolved_reloc = FALSE;
2d7ad24e
AM
9609 plt = htab->elf.splt;
9610 if (!htab->elf.dynamic_sections_created
9611 || h == NULL
9612 || h->dynindx == -1)
9613 {
9614 if (ifunc != NULL)
9615 plt = htab->elf.iplt;
9616 else
9617 plt = htab->pltlocal;
9618 }
9619 relocation = (plt->output_section->vma
9620 + plt->output_offset
08be3224
AM
9621 + ent->plt.offset);
9622 if (bfd_link_pic (info))
9623 {
9624 bfd_vma got = 0;
9625
9626 if (ent->addend >= 32768)
9627 got = (ent->addend
9628 + ent->sec->output_section->vma
9629 + ent->sec->output_offset);
9630 else
9631 got = SYM_VAL (htab->elf.hgot);
9632 relocation -= got;
9633 }
9634 }
9635 }
9636 addend = 0;
9637 break;
9638
70bccea4 9639 /* Relocate against _SDA_BASE_. */
7619e7c7 9640 case R_PPC_SDAREL16:
252b5132
RH
9641 {
9642 const char *name;
bd6c6e2b 9643 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9644
bd6c6e2b
AM
9645 if (sec == NULL
9646 || sec->output_section == NULL
9647 || !is_static_defined (sda))
3b4f3a11
AM
9648 {
9649 unresolved_reloc = TRUE;
9650 break;
9651 }
bd6c6e2b 9652 addend -= SYM_VAL (sda);
3b4f3a11 9653
a0f49396 9654 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9655 if (!(strcmp (name, ".sdata") == 0
9656 || strcmp (name, ".sbss") == 0))
252b5132 9657 {
cf97bcb0 9658 _bfd_error_handler
695344c0 9659 /* xgettext:c-format */
cf97bcb0
AM
9660 (_("%pB: the target (%s) of a %s relocation is "
9661 "in the wrong output section (%s)"),
d003868e 9662 input_bfd,
55fd94b0
AM
9663 sym_name,
9664 howto->name,
9665 name);
252b5132 9666 }
252b5132
RH
9667 }
9668 break;
9669
70bccea4 9670 /* Relocate against _SDA2_BASE_. */
7619e7c7 9671 case R_PPC_EMB_SDA2REL:
252b5132
RH
9672 {
9673 const char *name;
bd6c6e2b 9674 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9675
bd6c6e2b
AM
9676 if (sec == NULL
9677 || sec->output_section == NULL
9678 || !is_static_defined (sda))
3b4f3a11
AM
9679 {
9680 unresolved_reloc = TRUE;
9681 break;
9682 }
bd6c6e2b 9683 addend -= SYM_VAL (sda);
3b4f3a11 9684
a0f49396 9685 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9686 if (!(strcmp (name, ".sdata2") == 0
9687 || strcmp (name, ".sbss2") == 0))
252b5132 9688 {
cf97bcb0 9689 _bfd_error_handler
695344c0 9690 /* xgettext:c-format */
cf97bcb0
AM
9691 (_("%pB: the target (%s) of a %s relocation is "
9692 "in the wrong output section (%s)"),
d003868e 9693 input_bfd,
55fd94b0
AM
9694 sym_name,
9695 howto->name,
9696 name);
252b5132 9697 }
252b5132
RH
9698 }
9699 break;
9700
b9c361e0 9701 case R_PPC_VLE_LO16A:
86c95733 9702 relocation = relocation + addend;
08dc996f
AM
9703 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9704 contents + rel->r_offset, relocation,
9705 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9706 goto copy_reloc;
b9c361e0
JL
9707
9708 case R_PPC_VLE_LO16D:
86c95733 9709 relocation = relocation + addend;
08dc996f
AM
9710 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9711 contents + rel->r_offset, relocation,
9712 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9713 goto copy_reloc;
b9c361e0
JL
9714
9715 case R_PPC_VLE_HI16A:
86c95733 9716 relocation = (relocation + addend) >> 16;
08dc996f
AM
9717 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9718 contents + rel->r_offset, relocation,
9719 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9720 goto copy_reloc;
b9c361e0
JL
9721
9722 case R_PPC_VLE_HI16D:
86c95733 9723 relocation = (relocation + addend) >> 16;
08dc996f
AM
9724 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9725 contents + rel->r_offset, relocation,
9726 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9727 goto copy_reloc;
b9c361e0
JL
9728
9729 case R_PPC_VLE_HA16A:
86c95733 9730 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9731 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9732 contents + rel->r_offset, relocation,
9733 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9734 goto copy_reloc;
b9c361e0
JL
9735
9736 case R_PPC_VLE_HA16D:
86c95733 9737 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9738 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9739 contents + rel->r_offset, relocation,
9740 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9741 goto copy_reloc;
b9c361e0 9742
70bccea4 9743 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9744 case R_PPC_EMB_SDA21:
b9c361e0 9745 case R_PPC_VLE_SDA21:
7619e7c7 9746 case R_PPC_EMB_RELSDA:
b9c361e0 9747 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9748 {
9749 const char *name;
9750 int reg;
86c95733 9751 unsigned int insn;
bd6c6e2b 9752 struct elf_link_hash_entry *sda = NULL;
252b5132 9753
3b4f3a11
AM
9754 if (sec == NULL || sec->output_section == NULL)
9755 {
9756 unresolved_reloc = TRUE;
9757 break;
9758 }
9759
a0f49396 9760 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9761 if (strcmp (name, ".sdata") == 0
9762 || strcmp (name, ".sbss") == 0)
252b5132
RH
9763 {
9764 reg = 13;
bd6c6e2b 9765 sda = htab->sdata[0].sym;
252b5132 9766 }
93d1b056
AM
9767 else if (strcmp (name, ".sdata2") == 0
9768 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9769 {
9770 reg = 2;
bd6c6e2b 9771 sda = htab->sdata[1].sym;
252b5132 9772 }
8da6118f
KH
9773 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9774 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9775 {
9776 reg = 0;
9777 }
252b5132
RH
9778 else
9779 {
cf97bcb0 9780 _bfd_error_handler
695344c0 9781 /* xgettext:c-format */
cf97bcb0
AM
9782 (_("%pB: the target (%s) of a %s relocation is "
9783 "in the wrong output section (%s)"),
d003868e 9784 input_bfd,
55fd94b0
AM
9785 sym_name,
9786 howto->name,
9787 name);
252b5132
RH
9788
9789 bfd_set_error (bfd_error_bad_value);
b34976b6 9790 ret = FALSE;
c316a17c 9791 goto copy_reloc;
252b5132
RH
9792 }
9793
bd6c6e2b
AM
9794 if (sda != NULL)
9795 {
9796 if (!is_static_defined (sda))
9797 {
9798 unresolved_reloc = TRUE;
9799 break;
9800 }
9801 addend -= SYM_VAL (sda);
9802 }
9803
95f0d0d2 9804 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9805 if (reg == 0
9806 && (r_type == R_PPC_VLE_SDA21
9807 || r_type == R_PPC_VLE_SDA21_LO))
9808 {
86c95733
AM
9809 relocation = relocation + addend;
9810 addend = 0;
9811
9812 /* Force e_li insn, keeping RT from original insn. */
9813 insn &= 0x1f << 21;
9814 insn |= 28u << 26;
9815
9816 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9817 /* Top 4 bits of value to 17..20. */
9818 insn |= (relocation & 0xf0000) >> 5;
9819 /* Next 5 bits of the value to 11..15. */
9820 insn |= (relocation & 0xf800) << 5;
9821 /* And the final 11 bits of the value to bits 21 to 31. */
9822 insn |= relocation & 0x7ff;
9823
95f0d0d2 9824 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9825
9826 if (r_type == R_PPC_VLE_SDA21
9827 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9828 goto overflow;
c316a17c 9829 goto copy_reloc;
b9c361e0
JL
9830 }
9831 else if (r_type == R_PPC_EMB_SDA21
9832 || r_type == R_PPC_VLE_SDA21
9833 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9834 {
86c95733 9835 /* Fill in register field. */
252b5132 9836 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9837 }
95f0d0d2 9838 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9839 }
9840 break;
9841
b9c361e0
JL
9842 case R_PPC_VLE_SDAREL_LO16A:
9843 case R_PPC_VLE_SDAREL_LO16D:
9844 case R_PPC_VLE_SDAREL_HI16A:
9845 case R_PPC_VLE_SDAREL_HI16D:
9846 case R_PPC_VLE_SDAREL_HA16A:
9847 case R_PPC_VLE_SDAREL_HA16D:
9848 {
9849 bfd_vma value;
9850 const char *name;
b9c361e0
JL
9851 struct elf_link_hash_entry *sda = NULL;
9852
9853 if (sec == NULL || sec->output_section == NULL)
9854 {
9855 unresolved_reloc = TRUE;
9856 break;
9857 }
9858
a0f49396 9859 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9860 if (strcmp (name, ".sdata") == 0
9861 || strcmp (name, ".sbss") == 0)
5499c7c7 9862 sda = htab->sdata[0].sym;
93d1b056
AM
9863 else if (strcmp (name, ".sdata2") == 0
9864 || strcmp (name, ".sbss2") == 0)
5499c7c7 9865 sda = htab->sdata[1].sym;
b9c361e0
JL
9866 else
9867 {
4eca0228 9868 _bfd_error_handler
695344c0 9869 /* xgettext:c-format */
871b3ab2 9870 (_("%pB: the target (%s) of a %s relocation is "
b9c361e0
JL
9871 "in the wrong output section (%s)"),
9872 input_bfd,
9873 sym_name,
9874 howto->name,
9875 name);
9876
9877 bfd_set_error (bfd_error_bad_value);
9878 ret = FALSE;
c316a17c 9879 goto copy_reloc;
b9c361e0
JL
9880 }
9881
5499c7c7 9882 if (sda == NULL || !is_static_defined (sda))
b9c361e0 9883 {
5499c7c7
AM
9884 unresolved_reloc = TRUE;
9885 break;
b9c361e0 9886 }
5499c7c7 9887 value = relocation + addend - SYM_VAL (sda);
86c95733
AM
9888
9889 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9890 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9891 contents + rel->r_offset, value,
9892 split16a_type,
9893 htab->params->vle_reloc_fixup);
86c95733 9894 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9895 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9896 contents + rel->r_offset, value,
9897 split16d_type,
9898 htab->params->vle_reloc_fixup);
86c95733 9899 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9900 {
86c95733 9901 value = value >> 16;
08dc996f
AM
9902 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9903 contents + rel->r_offset, value,
9904 split16a_type,
9905 htab->params->vle_reloc_fixup);
b9c361e0 9906 }
86c95733 9907 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9908 {
86c95733 9909 value = value >> 16;
08dc996f
AM
9910 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9911 contents + rel->r_offset, value,
9912 split16d_type,
9913 htab->params->vle_reloc_fixup);
b9c361e0 9914 }
86c95733 9915 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9916 {
86c95733 9917 value = (value + 0x8000) >> 16;
08dc996f
AM
9918 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9919 contents + rel->r_offset, value,
9920 split16a_type,
9921 htab->params->vle_reloc_fixup);
b9c361e0 9922 }
86c95733 9923 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9924 {
86c95733 9925 value = (value + 0x8000) >> 16;
08dc996f
AM
9926 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9927 contents + rel->r_offset, value,
9928 split16d_type,
9929 htab->params->vle_reloc_fixup);
b9c361e0
JL
9930 }
9931 }
c316a17c 9932 goto copy_reloc;
b9c361e0 9933
83eef883
AFB
9934 case R_PPC_VLE_ADDR20:
9935 ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
9936 continue;
9937
70bccea4 9938 /* Relocate against the beginning of the section. */
7619e7c7
AM
9939 case R_PPC_SECTOFF:
9940 case R_PPC_SECTOFF_LO:
9941 case R_PPC_SECTOFF_HI:
9942 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9943 if (sec == NULL || sec->output_section == NULL)
9944 {
9945 unresolved_reloc = TRUE;
9946 break;
9947 }
252b5132 9948 addend -= sec->output_section->vma;
252b5132
RH
9949 break;
9950
70bccea4 9951 /* Negative relocations. */
7619e7c7
AM
9952 case R_PPC_EMB_NADDR32:
9953 case R_PPC_EMB_NADDR16:
9954 case R_PPC_EMB_NADDR16_LO:
9955 case R_PPC_EMB_NADDR16_HI:
9956 case R_PPC_EMB_NADDR16_HA:
8da6118f 9957 addend -= 2 * relocation;
252b5132
RH
9958 break;
9959
7619e7c7
AM
9960 case R_PPC_COPY:
9961 case R_PPC_GLOB_DAT:
9962 case R_PPC_JMP_SLOT:
9963 case R_PPC_RELATIVE:
e054468f 9964 case R_PPC_IRELATIVE:
7619e7c7
AM
9965 case R_PPC_PLT32:
9966 case R_PPC_PLTREL32:
7619e7c7
AM
9967 case R_PPC_ADDR30:
9968 case R_PPC_EMB_RELSEC16:
9969 case R_PPC_EMB_RELST_LO:
9970 case R_PPC_EMB_RELST_HI:
9971 case R_PPC_EMB_RELST_HA:
9972 case R_PPC_EMB_BIT_FLD:
cf97bcb0
AM
9973 /* xgettext:c-format */
9974 _bfd_error_handler (_("%pB: %s unsupported"),
9975 input_bfd, howto->name);
252b5132
RH
9976
9977 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9978 ret = FALSE;
c316a17c 9979 goto copy_reloc;
7619e7c7 9980 }
252b5132 9981
23cedd1d
AM
9982 switch (r_type)
9983 {
9984 default:
9985 break;
9986
9987 case R_PPC_PLTCALL:
9988 if (unresolved_reloc)
9989 {
9990 bfd_byte *p = contents + rel->r_offset;
9991 unsigned int insn = bfd_get_32 (input_bfd, p);
9992 insn &= 1;
9993 bfd_put_32 (input_bfd, B | insn, p);
9994 unresolved_reloc = save_unresolved_reloc;
9995 r_type = R_PPC_REL24;
9996 howto = ppc_elf_howto_table[r_type];
9997 }
9998 else if (htab->plt_type != PLT_NEW)
9999 info->callbacks->einfo
10000 (_("%P: %H: %s relocation unsupported for bss-plt\n"),
10001 input_bfd, input_section, rel->r_offset,
10002 howto->name);
10003 break;
10004
10005 case R_PPC_PLTSEQ:
10006 case R_PPC_PLT16_HA:
10007 case R_PPC_PLT16_LO:
10008 if (unresolved_reloc)
10009 {
10010 bfd_byte *p = contents + (rel->r_offset & ~3);
10011 bfd_put_32 (input_bfd, NOP, p);
10012 unresolved_reloc = FALSE;
10013 r_type = R_PPC_NONE;
10014 howto = ppc_elf_howto_table[r_type];
10015 }
10016 else if (htab->plt_type != PLT_NEW)
10017 info->callbacks->einfo
10018 (_("%P: %H: %s relocation unsupported for bss-plt\n"),
10019 input_bfd, input_section, rel->r_offset,
10020 howto->name);
10021 break;
10022 }
10023
7619e7c7
AM
10024 /* Do any further special processing. */
10025 switch (r_type)
10026 {
10027 default:
10028 break;
10029
10030 case R_PPC_ADDR16_HA:
d7128ce4 10031 case R_PPC_REL16_HA:
a680de9a 10032 case R_PPC_REL16DX_HA:
7619e7c7
AM
10033 case R_PPC_SECTOFF_HA:
10034 case R_PPC_TPREL16_HA:
10035 case R_PPC_DTPREL16_HA:
7619e7c7
AM
10036 case R_PPC_EMB_NADDR16_HA:
10037 case R_PPC_EMB_RELST_HA:
10038 /* It's just possible that this symbol is a weak symbol
7b609f53 10039 that's not actually defined anywhere. In that case,
7619e7c7
AM
10040 'sec' would be NULL, and we should leave the symbol
10041 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
10042 if (sec == NULL)
10043 break;
1a0670f3 10044 /* Fall through. */
5c5f6e17
AM
10045
10046 case R_PPC_PLT16_HA:
10047 case R_PPC_GOT16_HA:
10048 case R_PPC_GOT_TLSGD16_HA:
10049 case R_PPC_GOT_TLSLD16_HA:
10050 case R_PPC_GOT_TPREL16_HA:
10051 case R_PPC_GOT_DTPREL16_HA:
10052 /* Add 0x10000 if sign bit in 0:15 is set.
10053 Bits 0:15 are not used. */
10054 addend += 0x8000;
7619e7c7 10055 break;
1fe532cf
AM
10056
10057 case R_PPC_ADDR16:
10058 case R_PPC_ADDR16_LO:
10059 case R_PPC_GOT16:
10060 case R_PPC_GOT16_LO:
10061 case R_PPC_SDAREL16:
10062 case R_PPC_SECTOFF:
10063 case R_PPC_SECTOFF_LO:
10064 case R_PPC_DTPREL16:
10065 case R_PPC_DTPREL16_LO:
10066 case R_PPC_TPREL16:
10067 case R_PPC_TPREL16_LO:
10068 case R_PPC_GOT_TLSGD16:
10069 case R_PPC_GOT_TLSGD16_LO:
10070 case R_PPC_GOT_TLSLD16:
10071 case R_PPC_GOT_TLSLD16_LO:
10072 case R_PPC_GOT_DTPREL16:
10073 case R_PPC_GOT_DTPREL16_LO:
10074 case R_PPC_GOT_TPREL16:
10075 case R_PPC_GOT_TPREL16_LO:
10076 {
10077 /* The 32-bit ABI lacks proper relocations to deal with
10078 certain 64-bit instructions. Prevent damage to bits
10079 that make up part of the insn opcode. */
10080 unsigned int insn, mask, lobit;
10081
95f0d0d2 10082 insn = bfd_get_32 (input_bfd,
c316a17c 10083 contents + rel->r_offset - d_offset);
1fe532cf
AM
10084 mask = 0;
10085 if (is_insn_ds_form (insn))
10086 mask = 3;
10087 else if (is_insn_dq_form (insn))
10088 mask = 15;
10089 else
10090 break;
a680de9a
PB
10091 relocation += addend;
10092 addend = insn & mask;
10093 lobit = mask & relocation;
1fe532cf
AM
10094 if (lobit != 0)
10095 {
a680de9a 10096 relocation ^= lobit;
1fe532cf 10097 info->callbacks->einfo
695344c0 10098 /* xgettext:c-format */
174d0a74 10099 (_("%H: error: %s against `%s' not a multiple of %u\n"),
1fe532cf
AM
10100 input_bfd, input_section, rel->r_offset,
10101 howto->name, sym_name, mask + 1);
10102 bfd_set_error (bfd_error_bad_value);
10103 ret = FALSE;
10104 }
1fe532cf
AM
10105 }
10106 break;
252b5132
RH
10107 }
10108
252b5132 10109#ifdef DEBUG
55fd94b0
AM
10110 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
10111 "offset = %ld, addend = %ld\n",
252b5132 10112 howto->name,
8da6118f 10113 (int) r_type,
252b5132
RH
10114 sym_name,
10115 r_symndx,
7619e7c7 10116 (long) rel->r_offset,
8da6118f 10117 (long) addend);
252b5132
RH
10118#endif
10119
7619e7c7
AM
10120 if (unresolved_reloc
10121 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
10122 && h->def_dynamic)
10123 && _bfd_elf_section_offset (output_bfd, info, input_section,
10124 rel->r_offset) != (bfd_vma) -1)
7619e7c7 10125 {
25f53a85 10126 info->callbacks->einfo
695344c0 10127 /* xgettext:c-format */
174d0a74 10128 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 10129 input_bfd, input_section, rel->r_offset,
7b609f53 10130 howto->name,
7619e7c7
AM
10131 sym_name);
10132 ret = FALSE;
10133 }
10134
86c95733
AM
10135 /* 16-bit fields in insns mostly have signed values, but a
10136 few insns have 16-bit unsigned values. Really, we should
10137 have different reloc types. */
10138 if (howto->complain_on_overflow != complain_overflow_dont
10139 && howto->dst_mask == 0xffff
10140 && (input_section->flags & SEC_CODE) != 0)
10141 {
10142 enum complain_overflow complain = complain_overflow_signed;
10143
10144 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
10145 {
10146 unsigned int insn;
10147
10148 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
10149 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
10150 complain = complain_overflow_bitfield;
10151 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
10152 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
10153 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
10154 complain = complain_overflow_unsigned;
10155 }
10156 if (howto->complain_on_overflow != complain)
10157 {
10158 alt_howto = *howto;
10159 alt_howto.complain_on_overflow = complain;
10160 howto = &alt_howto;
10161 }
10162 }
10163
a680de9a
PB
10164 if (r_type == R_PPC_REL16DX_HA)
10165 {
10166 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
10167 if (rel->r_offset + 4 > input_section->size)
10168 r = bfd_reloc_outofrange;
10169 else
10170 {
10171 unsigned int insn;
10172
10173 relocation += addend;
10174 relocation -= (rel->r_offset
10175 + input_section->output_offset
10176 + input_section->output_section->vma);
10177 relocation >>= 16;
10178 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
10179 insn &= ~0x1fffc1;
10180 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
10181 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
10182 r = bfd_reloc_ok;
10183 }
10184 }
10185 else
10186 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
10187 rel->r_offset, relocation, addend);
252b5132 10188
7619e7c7 10189 if (r != bfd_reloc_ok)
252b5132 10190 {
7619e7c7 10191 if (r == bfd_reloc_overflow)
252b5132 10192 {
c3301df1 10193 overflow:
8131c122
AM
10194 /* On code like "if (foo) foo();" don't report overflow
10195 on a branch to zero when foo is undefined. */
10196 if (!warned
10197 && !(h != NULL
10198 && (h->root.type == bfd_link_hash_undefweak
10199 || h->root.type == bfd_link_hash_undefined)
10200 && is_branch_reloc (r_type)))
1a72702b
AM
10201 info->callbacks->reloc_overflow
10202 (info, (h ? &h->root : NULL), sym_name, howto->name,
10203 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
10204 }
10205 else
10206 {
25f53a85 10207 info->callbacks->einfo
695344c0 10208 /* xgettext:c-format */
174d0a74 10209 (_("%H: %s reloc against `%s': error %d\n"),
25f53a85
AM
10210 input_bfd, input_section, rel->r_offset,
10211 howto->name, sym_name, (int) r);
7619e7c7 10212 ret = FALSE;
252b5132
RH
10213 }
10214 }
c316a17c
AM
10215 copy_reloc:
10216 if (wrel != rel)
10217 *wrel = *rel;
10218 }
10219
10220 if (wrel != rel)
10221 {
10222 Elf_Internal_Shdr *rel_hdr;
10223 size_t deleted = rel - wrel;
10224
10225 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
10226 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
10227 if (rel_hdr->sh_size == 0)
10228 {
10229 /* It is too late to remove an empty reloc section. Leave
10230 one NONE reloc.
10231 ??? What is wrong with an empty section??? */
10232 rel_hdr->sh_size = rel_hdr->sh_entsize;
10233 deleted -= 1;
10234 wrel++;
10235 }
10236 relend = wrel;
10237 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
10238 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
10239 input_section->reloc_count -= deleted;
252b5132
RH
10240 }
10241
252b5132
RH
10242#ifdef DEBUG
10243 fprintf (stderr, "\n");
10244#endif
10245
53291d1f
AM
10246 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
10247 && input_section->size != input_section->rawsize
10248 && (strcmp (input_section->output_section->name, ".init") == 0
10249 || strcmp (input_section->output_section->name, ".fini") == 0))
10250 {
10251 /* Branch around the trampolines. */
10252 unsigned int insn = B + input_section->size - input_section->rawsize;
10253 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
10254 }
10255
5446cbdf 10256 if (htab->params->ppc476_workaround
795bc6b3 10257 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 10258 && (!bfd_link_relocatable (info)
795bc6b3
AM
10259 || (input_section->output_section->alignment_power
10260 >= htab->params->pagesize_p2)))
5446cbdf 10261 {
5446cbdf 10262 bfd_vma start_addr, end_addr, addr;
795bc6b3 10263 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 10264
5446cbdf 10265 if (relax_info->workaround_size != 0)
40fd06d1
AM
10266 {
10267 bfd_byte *p;
10268 unsigned int n;
10269 bfd_byte fill[4];
10270
10271 bfd_put_32 (input_bfd, BA, fill);
10272 p = contents + input_section->size - relax_info->workaround_size;
10273 n = relax_info->workaround_size >> 2;
10274 while (n--)
10275 {
10276 memcpy (p, fill, 4);
10277 p += 4;
10278 }
10279 }
5446cbdf
AM
10280
10281 /* The idea is: Replace the last instruction on a page with a
10282 branch to a patch area. Put the insn there followed by a
10283 branch back to the next page. Complicated a little by
10284 needing to handle moved conditional branches, and by not
10285 wanting to touch data-in-text. */
10286
10287 start_addr = (input_section->output_section->vma
10288 + input_section->output_offset);
10289 end_addr = (start_addr + input_section->size
10290 - relax_info->workaround_size);
10291 for (addr = ((start_addr & -pagesize) + pagesize - 4);
10292 addr < end_addr;
10293 addr += pagesize)
10294 {
10295 bfd_vma offset = addr - start_addr;
10296 Elf_Internal_Rela *lo, *hi;
10297 bfd_boolean is_data;
10298 bfd_vma patch_off, patch_addr;
10299 unsigned int insn;
10300
10301 /* Do we have a data reloc at this offset? If so, leave
10302 the word alone. */
10303 is_data = FALSE;
10304 lo = relocs;
668e22e5
AM
10305 hi = relend;
10306 rel = NULL;
5446cbdf
AM
10307 while (lo < hi)
10308 {
10309 rel = lo + (hi - lo) / 2;
10310 if (rel->r_offset < offset)
10311 lo = rel + 1;
668e22e5 10312 else if (rel->r_offset > offset + 3)
5446cbdf
AM
10313 hi = rel;
10314 else
10315 {
10316 switch (ELF32_R_TYPE (rel->r_info))
10317 {
10318 case R_PPC_ADDR32:
10319 case R_PPC_UADDR32:
10320 case R_PPC_REL32:
10321 case R_PPC_ADDR30:
10322 is_data = TRUE;
10323 break;
10324 default:
10325 break;
10326 }
10327 break;
10328 }
10329 }
10330 if (is_data)
10331 continue;
10332
b4ab4364
AM
10333 /* Some instructions can be left alone too. Unconditional
10334 branches, except for bcctr with BO=0x14 (bctr, bctrl),
10335 avoid the icache failure.
10336
10337 The problem occurs due to prefetch across a page boundary
10338 where stale instructions can be fetched from the next
10339 page, and the mechanism for flushing these bad
10340 instructions fails under certain circumstances. The
10341 unconditional branches:
10342 1) Branch: b, bl, ba, bla,
10343 2) Branch Conditional: bc, bca, bcl, bcla,
10344 3) Branch Conditional to Link Register: bclr, bclrl,
10345 where (2) and (3) have BO=0x14 making them unconditional,
10346 prevent the bad prefetch because the prefetch itself is
10347 affected by these instructions. This happens even if the
10348 instruction is not executed.
10349
10350 A bctr example:
10351 .
10352 . lis 9,new_page@ha
10353 . addi 9,9,new_page@l
10354 . mtctr 9
10355 . bctr
10356 . nop
10357 . nop
10358 . new_page:
10359 .
10360 The bctr is not predicted taken due to ctr not being
10361 ready, so prefetch continues on past the bctr into the
10362 new page which might have stale instructions. If they
10363 fail to be flushed, then they will be executed after the
10364 bctr executes. Either of the following modifications
10365 prevent the bad prefetch from happening in the first
10366 place:
10367 .
1b786873
L
10368 . lis 9,new_page@ha lis 9,new_page@ha
10369 . addi 9,9,new_page@l addi 9,9,new_page@l
10370 . mtctr 9 mtctr 9
10371 . bctr bctr
b4ab4364 10372 . nop b somewhere_else
1b786873
L
10373 . b somewhere_else nop
10374 . new_page: new_page:
b4ab4364 10375 . */
5446cbdf 10376 insn = bfd_get_32 (input_bfd, contents + offset);
07d6d2b8
AM
10377 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
10378 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
10379 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 10380 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364 10381 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
07d6d2b8 10382 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
10383 continue;
10384
10385 patch_addr = (start_addr + input_section->size
10386 - relax_info->workaround_size);
10387 patch_addr = (patch_addr + 15) & -16;
10388 patch_off = patch_addr - start_addr;
10389 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
10390
10391 if (rel != NULL
10392 && rel->r_offset >= offset
10393 && rel->r_offset < offset + 4)
10394 {
f8b44781
AM
10395 asection *sreloc;
10396
668e22e5
AM
10397 /* If the insn we are patching had a reloc, adjust the
10398 reloc r_offset so that the reloc applies to the moved
10399 location. This matters for -r and --emit-relocs. */
10400 if (rel + 1 != relend)
10401 {
10402 Elf_Internal_Rela tmp = *rel;
10403
10404 /* Keep the relocs sorted by r_offset. */
10405 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
10406 relend[-1] = tmp;
10407 }
10408 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
10409
10410 /* Adjust REL16 addends too. */
10411 switch (ELF32_R_TYPE (relend[-1].r_info))
10412 {
10413 case R_PPC_REL16:
10414 case R_PPC_REL16_LO:
10415 case R_PPC_REL16_HI:
10416 case R_PPC_REL16_HA:
10417 relend[-1].r_addend += patch_off - offset;
10418 break;
10419 default:
10420 break;
10421 }
10422
10423 /* If we are building a PIE or shared library with
10424 non-PIC objects, perhaps we had a dynamic reloc too?
10425 If so, the dynamic reloc must move with the insn. */
10426 sreloc = elf_section_data (input_section)->sreloc;
10427 if (sreloc != NULL)
10428 {
1d5c94cb 10429 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
10430 bfd_vma soffset;
10431
1d5c94cb
AM
10432 slo = (Elf32_External_Rela *) sreloc->contents;
10433 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
10434 soffset = (offset + input_section->output_section->vma
10435 + input_section->output_offset);
10436 while (slo < shi)
10437 {
1d5c94cb
AM
10438 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
10439 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
10440 &outrel);
f8b44781
AM
10441 if (outrel.r_offset < soffset)
10442 slo = srel + 1;
10443 else if (outrel.r_offset > soffset + 3)
10444 shi = srel;
10445 else
10446 {
1d5c94cb 10447 if (srel + 1 != srelend)
f8b44781 10448 {
1d5c94cb
AM
10449 memmove (srel, srel + 1,
10450 (srelend - (srel + 1)) * sizeof (*srel));
10451 srel = srelend - 1;
f8b44781
AM
10452 }
10453 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
10454 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
10455 (bfd_byte *) srel);
f8b44781
AM
10456 break;
10457 }
10458 }
10459 }
668e22e5
AM
10460 }
10461 else
10462 rel = NULL;
10463
5446cbdf
AM
10464 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
10465 && (insn & 2) == 0 /* relative */)
10466 {
10467 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
10468
10469 delta += offset - patch_off;
0e1862bb 10470 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 10471 delta = 0;
0e1862bb 10472 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
10473 {
10474 enum elf_ppc_reloc_type r_type;
10475
10476 r_type = ELF32_R_TYPE (relend[-1].r_info);
10477 if (r_type == R_PPC_REL14_BRTAKEN)
10478 insn |= BRANCH_PREDICT_BIT;
10479 else if (r_type == R_PPC_REL14_BRNTAKEN)
10480 insn &= ~BRANCH_PREDICT_BIT;
10481 else
10482 BFD_ASSERT (r_type == R_PPC_REL14);
10483
10484 if ((r_type == R_PPC_REL14_BRTAKEN
10485 || r_type == R_PPC_REL14_BRNTAKEN)
10486 && delta + 0x8000 < 0x10000
10487 && (bfd_signed_vma) delta < 0)
10488 insn ^= BRANCH_PREDICT_BIT;
10489 }
5446cbdf
AM
10490 if (delta + 0x8000 < 0x10000)
10491 {
10492 bfd_put_32 (input_bfd,
10493 (insn & ~0xfffc) | (delta & 0xfffc),
10494 contents + patch_off);
10495 patch_off += 4;
10496 bfd_put_32 (input_bfd,
10497 B | ((offset + 4 - patch_off) & 0x3fffffc),
10498 contents + patch_off);
10499 patch_off += 4;
10500 }
10501 else
10502 {
668e22e5
AM
10503 if (rel != NULL)
10504 {
10505 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
10506
10507 relend[-1].r_offset += 8;
10508 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
10509 }
5446cbdf
AM
10510 bfd_put_32 (input_bfd,
10511 (insn & ~0xfffc) | 8,
10512 contents + patch_off);
10513 patch_off += 4;
10514 bfd_put_32 (input_bfd,
10515 B | ((offset + 4 - patch_off) & 0x3fffffc),
10516 contents + patch_off);
10517 patch_off += 4;
10518 bfd_put_32 (input_bfd,
10519 B | ((delta - 8) & 0x3fffffc),
10520 contents + patch_off);
10521 patch_off += 4;
10522 }
10523 }
10524 else
10525 {
10526 bfd_put_32 (input_bfd, insn, contents + patch_off);
10527 patch_off += 4;
10528 bfd_put_32 (input_bfd,
10529 B | ((offset + 4 - patch_off) & 0x3fffffc),
10530 contents + patch_off);
10531 patch_off += 4;
10532 }
10533 BFD_ASSERT (patch_off <= input_section->size);
10534 relax_info->workaround_size = input_section->size - patch_off;
10535 }
10536 }
10537
252b5132
RH
10538 return ret;
10539}
252b5132 10540\f
49c09209 10541/* Write out the PLT relocs and entries for H. */
c5fccbec 10542
b34976b6 10543static bfd_boolean
49c09209 10544write_global_sym_plt (struct elf_link_hash_entry *h, void *inf)
e1a9cb8e 10545{
49c09209
AM
10546 struct bfd_link_info *info = (struct bfd_link_info *) inf;
10547 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
a6aa5195
AM
10548 struct plt_entry *ent;
10549 bfd_boolean doneone;
e1a9cb8e 10550
a6aa5195
AM
10551 doneone = FALSE;
10552 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10553 if (ent->plt.offset != (bfd_vma) -1)
10554 {
10555 if (!doneone)
10556 {
10557 Elf_Internal_Rela rela;
10558 bfd_byte *loc;
10559 bfd_vma reloc_index;
2d7ad24e
AM
10560 asection *plt = htab->elf.splt;
10561 asection *relplt = htab->elf.srelplt;
e1a9cb8e 10562
e054468f 10563 if (htab->plt_type == PLT_NEW
25f23106
AM
10564 || !htab->elf.dynamic_sections_created
10565 || h->dynindx == -1)
9d8504b1
PB
10566 reloc_index = ent->plt.offset / 4;
10567 else
10568 {
10569 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10570 / htab->plt_slot_size);
10571 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 10572 && htab->plt_type == PLT_OLD)
9d8504b1
PB
10573 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10574 }
10575
a6aa5195
AM
10576 /* This symbol has an entry in the procedure linkage table.
10577 Set it up. */
e054468f 10578 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
10579 && htab->elf.dynamic_sections_created
10580 && h->dynindx != -1)
a6aa5195 10581 {
9d8504b1
PB
10582 bfd_vma got_offset;
10583 const bfd_vma *plt_entry;
5b914448 10584
9d8504b1
PB
10585 /* The first three entries in .got.plt are reserved. */
10586 got_offset = (reloc_index + 3) * 4;
10587
10588 /* Use the right PLT. */
0e1862bb 10589 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10590 : ppc_elf_vxworks_plt_entry;
10591
10592 /* Fill in the .plt on VxWorks. */
0e1862bb 10593 if (bfd_link_pic (info))
9d8504b1 10594 {
49c09209 10595 bfd_put_32 (info->output_bfd,
e87d4038 10596 plt_entry[0] | PPC_HA (got_offset),
2d7ad24e 10597 plt->contents + ent->plt.offset + 0);
49c09209 10598 bfd_put_32 (info->output_bfd,
e87d4038 10599 plt_entry[1] | PPC_LO (got_offset),
2d7ad24e 10600 plt->contents + ent->plt.offset + 4);
9d8504b1
PB
10601 }
10602 else
10603 {
e87d4038 10604 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1 10605
49c09209 10606 bfd_put_32 (info->output_bfd,
e87d4038 10607 plt_entry[0] | PPC_HA (got_loc),
2d7ad24e 10608 plt->contents + ent->plt.offset + 0);
49c09209 10609 bfd_put_32 (info->output_bfd,
e87d4038 10610 plt_entry[1] | PPC_LO (got_loc),
2d7ad24e 10611 plt->contents + ent->plt.offset + 4);
9d8504b1
PB
10612 }
10613
49c09209 10614 bfd_put_32 (info->output_bfd, plt_entry[2],
2d7ad24e 10615 plt->contents + ent->plt.offset + 8);
49c09209 10616 bfd_put_32 (info->output_bfd, plt_entry[3],
2d7ad24e 10617 plt->contents + ent->plt.offset + 12);
9d8504b1
PB
10618
10619 /* This instruction is an immediate load. The value loaded is
10620 the byte offset of the R_PPC_JMP_SLOT relocation from the
10621 start of the .rela.plt section. The value is stored in the
10622 low-order 16 bits of the load instruction. */
10623 /* NOTE: It appears that this is now an index rather than a
10624 prescaled offset. */
49c09209 10625 bfd_put_32 (info->output_bfd,
9d8504b1 10626 plt_entry[4] | reloc_index,
2d7ad24e 10627 plt->contents + ent->plt.offset + 16);
9d8504b1
PB
10628 /* This instruction is a PC-relative branch whose target is
10629 the start of the PLT section. The address of this branch
10630 instruction is 20 bytes beyond the start of this PLT entry.
10631 The address is encoded in bits 6-29, inclusive. The value
10632 stored is right-shifted by two bits, permitting a 26-bit
10633 offset. */
49c09209 10634 bfd_put_32 (info->output_bfd,
5b914448 10635 (plt_entry[5]
9d8504b1 10636 | (-(ent->plt.offset + 20) & 0x03fffffc)),
2d7ad24e 10637 plt->contents + ent->plt.offset + 20);
49c09209 10638 bfd_put_32 (info->output_bfd, plt_entry[6],
2d7ad24e 10639 plt->contents + ent->plt.offset + 24);
49c09209 10640 bfd_put_32 (info->output_bfd, plt_entry[7],
2d7ad24e 10641 plt->contents + ent->plt.offset + 28);
9d8504b1
PB
10642
10643 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10644 the address immediately after the "bctr" instruction
9d8504b1 10645 in this PLT entry. */
2d7ad24e
AM
10646 bfd_put_32 (info->output_bfd, (plt->output_section->vma
10647 + plt->output_offset
10648 + ent->plt.offset + 16),
ce558b89 10649 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10650
0e1862bb 10651 if (!bfd_link_pic (info))
9d8504b1
PB
10652 {
10653 /* Fill in a couple of entries in .rela.plt.unloaded. */
10654 loc = htab->srelplt2->contents
10655 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10656 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10657 * sizeof (Elf32_External_Rela));
10658
10659 /* Provide the @ha relocation for the first instruction. */
2d7ad24e
AM
10660 rela.r_offset = (plt->output_section->vma
10661 + plt->output_offset
9d8504b1 10662 + ent->plt.offset + 2);
636ce3f5 10663 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10664 R_PPC_ADDR16_HA);
10665 rela.r_addend = got_offset;
49c09209 10666 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
9d8504b1
PB
10667 loc += sizeof (Elf32_External_Rela);
10668
10669 /* Provide the @l relocation for the second instruction. */
2d7ad24e
AM
10670 rela.r_offset = (plt->output_section->vma
10671 + plt->output_offset
9d8504b1 10672 + ent->plt.offset + 6);
636ce3f5 10673 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10674 R_PPC_ADDR16_LO);
10675 rela.r_addend = got_offset;
49c09209 10676 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
9d8504b1
PB
10677 loc += sizeof (Elf32_External_Rela);
10678
10679 /* Provide a relocation for the GOT entry corresponding to this
10680 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10681 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10682 + htab->elf.sgotplt->output_offset
9d8504b1 10683 + got_offset);
7325306f 10684 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10685 R_PPC_ADDR32);
10686 rela.r_addend = ent->plt.offset + 16;
49c09209 10687 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
9d8504b1
PB
10688 }
10689
10690 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10691 In particular, the offset for the relocation is not the
10692 address of the PLT entry for this function, as specified
10693 by the ABI. Instead, the offset is set to the address of
10694 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10695 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10696 + htab->elf.sgotplt->output_offset
9d8504b1 10697 + got_offset);
2d7ad24e 10698 rela.r_addend = 0;
a6aa5195
AM
10699 }
10700 else
10701 {
2d7ad24e 10702 rela.r_addend = 0;
25f23106
AM
10703 if (!htab->elf.dynamic_sections_created
10704 || h->dynindx == -1)
2d7ad24e
AM
10705 {
10706 if (h->type == STT_GNU_IFUNC)
10707 {
10708 plt = htab->elf.iplt;
10709 relplt = htab->elf.irelplt;
10710 }
10711 else
10712 {
10713 plt = htab->pltlocal;
10714 relplt = bfd_link_pic (info) ? htab->relpltlocal : NULL;
10715 }
10716 if (h->def_regular
10717 && (h->root.type == bfd_link_hash_defined
10718 || h->root.type == bfd_link_hash_defweak))
10719 rela.r_addend = SYM_VAL (h);
10720 }
e054468f 10721
2d7ad24e 10722 if (relplt == NULL)
9d8504b1 10723 {
2d7ad24e
AM
10724 loc = plt->contents + ent->plt.offset;
10725 bfd_put_32 (info->output_bfd, rela.r_addend, loc);
9d8504b1
PB
10726 }
10727 else
10728 {
2d7ad24e
AM
10729 rela.r_offset = (plt->output_section->vma
10730 + plt->output_offset
10731 + ent->plt.offset);
10732
10733 if (htab->plt_type == PLT_OLD
10734 || !htab->elf.dynamic_sections_created
10735 || h->dynindx == -1)
10736 {
10737 /* We don't need to fill in the .plt. The ppc dynamic
10738 linker will fill it in. */
10739 }
10740 else
10741 {
10742 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10743 + htab->glink->output_section->vma
10744 + htab->glink->output_offset);
10745 bfd_put_32 (info->output_bfd, val,
10746 plt->contents + ent->plt.offset);
10747 }
9d8504b1 10748 }
a6aa5195 10749 }
e1a9cb8e 10750
2d7ad24e 10751 if (relplt != NULL)
e054468f 10752 {
2d7ad24e
AM
10753 /* Fill in the entry in the .rela.plt section. */
10754 if (!htab->elf.dynamic_sections_created
10755 || h->dynindx == -1)
10756 {
10757 if (h->type == STT_GNU_IFUNC)
10758 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10759 else
10760 rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
10761 loc = relplt->contents + (relplt->reloc_count++
10762 * sizeof (Elf32_External_Rela));
10763 htab->local_ifunc_resolver = 1;
10764 }
10765 else
10766 {
10767 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
10768 loc = relplt->contents + (reloc_index
10769 * sizeof (Elf32_External_Rela));
10770 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10771 htab->maybe_local_ifunc_resolver = 1;
10772 }
10773 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
82e66161 10774 }
a6aa5195
AM
10775 doneone = TRUE;
10776 }
e1a9cb8e 10777
e054468f 10778 if (htab->plt_type == PLT_NEW
25f23106
AM
10779 || !htab->elf.dynamic_sections_created
10780 || h->dynindx == -1)
a6aa5195 10781 {
a7f2871e 10782 unsigned char *p;
49c09209 10783 asection *plt = htab->elf.splt;
9e390558 10784
25f23106
AM
10785 if (!htab->elf.dynamic_sections_created
10786 || h->dynindx == -1)
2d7ad24e
AM
10787 {
10788 if (h->type == STT_GNU_IFUNC)
10789 plt = htab->elf.iplt;
10790 else
10791 break;
10792 }
e1a9cb8e 10793
a7f2871e 10794 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
49c09209 10795 write_glink_stub (h, ent, plt, p, info);
e1a9cb8e 10796
0e1862bb 10797 if (!bfd_link_pic (info))
e054468f
AM
10798 /* We only need one non-PIC glink stub. */
10799 break;
a6aa5195
AM
10800 }
10801 else
10802 break;
10803 }
49c09209
AM
10804 return TRUE;
10805}
10806
10807/* Finish up PLT handling. */
10808
10809bfd_boolean
10810ppc_finish_symbols (struct bfd_link_info *info)
10811{
10812 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10813 bfd *ibfd;
10814
10815 if (!htab)
10816 return TRUE;
10817
10818 elf_link_hash_traverse (&htab->elf, write_global_sym_plt, info);
10819
10820 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
10821 {
10822 bfd_vma *local_got, *end_local_got;
10823 struct plt_entry **local_plt, **lplt, **end_local_plt;
10824 Elf_Internal_Shdr *symtab_hdr;
10825 bfd_size_type locsymcount;
10826 Elf_Internal_Sym *local_syms = NULL;
10827 struct plt_entry *ent;
10828
10829 if (!is_ppc_elf (ibfd))
10830 continue;
10831
10832 local_got = elf_local_got_offsets (ibfd);
10833 if (!local_got)
10834 continue;
10835
10836 symtab_hdr = &elf_symtab_hdr (ibfd);
10837 locsymcount = symtab_hdr->sh_info;
10838 end_local_got = local_got + locsymcount;
10839 local_plt = (struct plt_entry **) end_local_got;
10840 end_local_plt = local_plt + locsymcount;
10841 for (lplt = local_plt; lplt < end_local_plt; ++lplt)
10842 for (ent = *lplt; ent != NULL; ent = ent->next)
10843 {
10844 if (ent->plt.offset != (bfd_vma) -1)
10845 {
10846 Elf_Internal_Sym *sym;
10847 asection *sym_sec;
10848 asection *plt, *relplt;
10849 bfd_byte *loc;
10850 bfd_vma val;
10851 Elf_Internal_Rela rela;
10852
10853 if (!get_sym_h (NULL, &sym, &sym_sec, NULL, &local_syms,
10854 lplt - local_plt, ibfd))
10855 {
10856 if (local_syms != NULL
10857 && symtab_hdr->contents != (unsigned char *) local_syms)
10858 free (local_syms);
10859 return FALSE;
10860 }
10861
10862 val = sym->st_value;
10863 if (sym_sec != NULL && sym_sec->output_section != NULL)
10864 val += sym_sec->output_offset + sym_sec->output_section->vma;
10865
2d7ad24e
AM
10866 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
10867 {
10868 htab->local_ifunc_resolver = 1;
10869 plt = htab->elf.iplt;
10870 relplt = htab->elf.irelplt;
10871 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10872 }
10873 else
10874 {
10875 plt = htab->pltlocal;
10876 if (bfd_link_pic (info))
10877 {
10878 relplt = htab->relpltlocal;
10879 rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
10880 }
10881 else
10882 {
10883 loc = plt->contents + ent->plt.offset;
10884 bfd_put_32 (info->output_bfd, val, loc);
10885 continue;
10886 }
10887 }
49c09209
AM
10888
10889 rela.r_offset = (ent->plt.offset
10890 + plt->output_offset
10891 + plt->output_section->vma);
49c09209
AM
10892 rela.r_addend = val;
10893 loc = relplt->contents + (relplt->reloc_count++
10894 * sizeof (Elf32_External_Rela));
10895 bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
10896 }
10897 if ((ent->glink_offset & 1) == 0)
10898 {
10899 unsigned char *p = ((unsigned char *) htab->glink->contents
10900 + ent->glink_offset);
10901
10902 write_glink_stub (NULL, ent, htab->elf.iplt, p, info);
10903 ent->glink_offset |= 1;
10904 }
10905 }
10906
10907 if (local_syms != NULL
10908 && symtab_hdr->contents != (unsigned char *) local_syms)
10909 {
10910 if (!info->keep_memory)
10911 free (local_syms);
10912 else
10913 symtab_hdr->contents = (unsigned char *) local_syms;
10914 }
10915 }
10916 return TRUE;
10917}
10918
10919/* Finish up dynamic symbol handling. We set the contents of various
10920 dynamic sections here. */
10921
10922static bfd_boolean
10923ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10924 struct bfd_link_info *info,
10925 struct elf_link_hash_entry *h,
10926 Elf_Internal_Sym *sym)
10927{
10928 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10929 struct plt_entry *ent;
10930
10931#ifdef DEBUG
10932 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10933 h->root.root.string);
10934#endif
10935
10936 if (!h->def_regular
10937 || (h->type == STT_GNU_IFUNC && !bfd_link_pic (info)))
10938 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10939 if (ent->plt.offset != (bfd_vma) -1)
10940 {
10941 if (!h->def_regular)
10942 {
10943 /* Mark the symbol as undefined, rather than as
10944 defined in the .plt section. Leave the value if
10945 there were any relocations where pointer equality
10946 matters (this is a clue for the dynamic linker, to
10947 make function pointer comparisons work between an
10948 application and shared library), otherwise set it
10949 to zero. */
10950 sym->st_shndx = SHN_UNDEF;
10951 if (!h->pointer_equality_needed)
10952 sym->st_value = 0;
10953 else if (!h->ref_regular_nonweak)
10954 {
10955 /* This breaks function pointer comparisons, but
10956 that is better than breaking tests for a NULL
10957 function pointer. */
10958 sym->st_value = 0;
10959 }
10960 }
10961 else
10962 {
10963 /* Set the value of ifunc symbols in a non-pie
10964 executable to the glink entry. This is to avoid
10965 text relocations. We can't do this for ifunc in
10966 allocate_dynrelocs, as we do for normal dynamic
10967 function symbols with plt entries, because we need
10968 to keep the original value around for the ifunc
10969 relocation. */
10970 sym->st_shndx
10971 = (_bfd_elf_section_from_bfd_section
10972 (info->output_bfd, htab->glink->output_section));
10973 sym->st_value = (ent->glink_offset
10974 + htab->glink->output_offset
10975 + htab->glink->output_section->vma);
10976 }
10977 break;
10978 }
e1a9cb8e 10979
25dbc73a
AM
10980 if (h->needs_copy)
10981 {
10982 asection *s;
10983 Elf_Internal_Rela rela;
10984 bfd_byte *loc;
e1a9cb8e 10985
25dbc73a 10986 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10987
25dbc73a
AM
10988#ifdef DEBUG
10989 fprintf (stderr, ", copy");
10990#endif
e1a9cb8e 10991
25dbc73a 10992 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10993
4dc4a9a5 10994 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10995 s = htab->relsbss;
afbf7e8e 10996 else if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f 10997 s = htab->elf.sreldynrelro;
25dbc73a 10998 else
9d19e4fd 10999 s = htab->elf.srelbss;
25dbc73a 11000 BFD_ASSERT (s != NULL);
e1a9cb8e 11001
e87d4038 11002 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
11003 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
11004 rela.r_addend = 0;
11005 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
11006 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
11007 }
e1a9cb8e 11008
25dbc73a
AM
11009#ifdef DEBUG
11010 fprintf (stderr, "\n");
11011#endif
e1a9cb8e 11012
25dbc73a
AM
11013 return TRUE;
11014}
11015\f
11016static enum elf_reloc_type_class
7e612e98
AM
11017ppc_elf_reloc_type_class (const struct bfd_link_info *info,
11018 const asection *rel_sec,
11019 const Elf_Internal_Rela *rela)
e1a9cb8e 11020{
7e612e98
AM
11021 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
11022
ce558b89 11023 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
11024 return reloc_class_ifunc;
11025
25dbc73a
AM
11026 switch (ELF32_R_TYPE (rela->r_info))
11027 {
11028 case R_PPC_RELATIVE:
11029 return reloc_class_relative;
25dbc73a
AM
11030 case R_PPC_JMP_SLOT:
11031 return reloc_class_plt;
11032 case R_PPC_COPY:
11033 return reloc_class_copy;
11034 default:
11035 return reloc_class_normal;
11036 }
e1a9cb8e 11037}
25dbc73a
AM
11038\f
11039/* Finish up the dynamic sections. */
e1a9cb8e 11040
25dbc73a
AM
11041static bfd_boolean
11042ppc_elf_finish_dynamic_sections (bfd *output_bfd,
11043 struct bfd_link_info *info)
e1a9cb8e 11044{
25dbc73a
AM
11045 asection *sdyn;
11046 struct ppc_elf_link_hash_table *htab;
1fe44d79 11047 bfd_vma got;
e87d4038
AM
11048 bfd *dynobj;
11049 bfd_boolean ret = TRUE;
e1a9cb8e 11050
25dbc73a
AM
11051#ifdef DEBUG
11052 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
11053#endif
6b0817e5 11054
25dbc73a 11055 htab = ppc_elf_hash_table (info);
ce558b89 11056 dynobj = htab->elf.dynobj;
3d4d4302 11057 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
e1a9cb8e 11058
1fe44d79
AM
11059 got = 0;
11060 if (htab->elf.hgot != NULL)
e87d4038 11061 got = SYM_VAL (htab->elf.hgot);
1fe44d79 11062
25dbc73a 11063 if (htab->elf.dynamic_sections_created)
e1a9cb8e 11064 {
25dbc73a 11065 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 11066
ce558b89 11067 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 11068
25dbc73a
AM
11069 dyncon = (Elf32_External_Dyn *) sdyn->contents;
11070 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
11071 for (; dyncon < dynconend; dyncon++)
11072 {
11073 Elf_Internal_Dyn dyn;
11074 asection *s;
e1a9cb8e 11075
9d8504b1 11076 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 11077
25dbc73a
AM
11078 switch (dyn.d_tag)
11079 {
11080 case DT_PLTGOT:
9d8504b1 11081 if (htab->is_vxworks)
ce558b89 11082 s = htab->elf.sgotplt;
9d8504b1 11083 else
ce558b89 11084 s = htab->elf.splt;
25dbc73a
AM
11085 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11086 break;
86bbe32f 11087
25dbc73a 11088 case DT_PLTRELSZ:
ce558b89 11089 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 11090 break;
e1a9cb8e 11091
25dbc73a 11092 case DT_JMPREL:
ce558b89 11093 s = htab->elf.srelplt;
25dbc73a
AM
11094 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
11095 break;
2f89ff8d 11096
1fe44d79
AM
11097 case DT_PPC_GOT:
11098 dyn.d_un.d_ptr = got;
d7128ce4
AM
11099 break;
11100
82e66161
AM
11101 case DT_TEXTREL:
11102 if (htab->local_ifunc_resolver)
11103 info->callbacks->einfo
11104 (_("%X%P: text relocations and GNU indirect "
11105 "functions will result in a segfault at runtime\n"));
11106 else if (htab->maybe_local_ifunc_resolver)
11107 info->callbacks->einfo
11108 (_("%P: warning: text relocations and GNU indirect "
11109 "functions may result in a segfault at runtime\n"));
11110 continue;
11111
25dbc73a 11112 default:
7a2b07ff
NS
11113 if (htab->is_vxworks
11114 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
11115 break;
25dbc73a
AM
11116 continue;
11117 }
4c45e5c9 11118
25dbc73a
AM
11119 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
11120 }
11121 }
4c45e5c9 11122
6528b6eb
AM
11123 if (htab->elf.sgot != NULL
11124 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
25dbc73a 11125 {
ce558b89
AM
11126 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
11127 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 11128 {
e79f5955 11129 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 11130
e87d4038
AM
11131 p += htab->elf.hgot->root.u.def.value;
11132 if (htab->plt_type == PLT_OLD)
e79f5955
AM
11133 {
11134 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
11135 so that a function can easily find the address of
11136 _GLOBAL_OFFSET_TABLE_. */
11137 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
11138 < htab->elf.hgot->root.u.def.section->size);
11139 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
11140 }
3b36f7e6 11141
e87d4038 11142 if (sdyn != NULL)
e79f5955
AM
11143 {
11144 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
11145 BFD_ASSERT (htab->elf.hgot->root.u.def.value
11146 < htab->elf.hgot->root.u.def.section->size);
11147 bfd_put_32 (output_bfd, val, p);
11148 }
e87d4038
AM
11149 }
11150 else
11151 {
695344c0 11152 /* xgettext:c-format */
cf97bcb0
AM
11153 _bfd_error_handler (_("%s not defined in linker created %pA"),
11154 htab->elf.hgot->root.root.string,
11155 (htab->elf.sgotplt != NULL
11156 ? htab->elf.sgotplt : htab->elf.sgot));
e87d4038
AM
11157 bfd_set_error (bfd_error_bad_value);
11158 ret = FALSE;
11159 }
25dbc73a 11160
ce558b89 11161 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
11162 }
11163
9d8504b1 11164 /* Fill in the first entry in the VxWorks procedure linkage table. */
6528b6eb
AM
11165 if (htab->is_vxworks
11166 && htab->elf.splt != NULL
11167 && htab->elf.splt->size != 0
11168 && htab->elf.splt->output_section != bfd_abs_section_ptr)
9d8504b1 11169 {
6528b6eb 11170 asection *splt = htab->elf.splt;
9d8504b1 11171 /* Use the right PLT. */
0e1862bb 11172 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
11173 ? ppc_elf_vxworks_pic_plt0_entry
11174 : ppc_elf_vxworks_plt0_entry);
9d8504b1 11175
0e1862bb 11176 if (!bfd_link_pic (info))
9d8504b1 11177 {
e87d4038 11178 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 11179
e87d4038 11180 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 11181 splt->contents + 0);
e87d4038 11182 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
11183 splt->contents + 4);
11184 }
11185 else
11186 {
11187 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
11188 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
11189 }
11190 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
11191 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
11192 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
11193 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
11194 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
11195 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
11196
0e1862bb 11197 if (! bfd_link_pic (info))
9d8504b1
PB
11198 {
11199 Elf_Internal_Rela rela;
11200 bfd_byte *loc;
11201
11202 loc = htab->srelplt2->contents;
11203
11204 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
11205 rela.r_offset = (htab->elf.splt->output_section->vma
11206 + htab->elf.splt->output_offset
9d8504b1 11207 + 2);
636ce3f5 11208 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
11209 rela.r_addend = 0;
11210 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
11211 loc += sizeof (Elf32_External_Rela);
5b914448 11212
9d8504b1 11213 /* Output the @l relocation for the second instruction. */
ce558b89
AM
11214 rela.r_offset = (htab->elf.splt->output_section->vma
11215 + htab->elf.splt->output_offset
9d8504b1 11216 + 6);
636ce3f5 11217 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
11218 rela.r_addend = 0;
11219 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
11220 loc += sizeof (Elf32_External_Rela);
11221
11222 /* Fix up the remaining relocations. They may have the wrong
11223 symbol index for _G_O_T_ or _P_L_T_ depending on the order
11224 in which symbols were output. */
11225 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
11226 {
11227 Elf_Internal_Rela rel;
11228
11229 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 11230 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
11231 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
11232 loc += sizeof (Elf32_External_Rela);
11233
11234 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 11235 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
11236 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
11237 loc += sizeof (Elf32_External_Rela);
11238
11239 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 11240 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
11241 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
11242 loc += sizeof (Elf32_External_Rela);
11243 }
11244 }
11245 }
11246
e054468f
AM
11247 if (htab->glink != NULL
11248 && htab->glink->contents != NULL
11249 && htab->elf.dynamic_sections_created)
d7128ce4
AM
11250 {
11251 unsigned char *p;
11252 unsigned char *endp;
a6aa5195 11253 bfd_vma res0;
a6aa5195
AM
11254
11255 /*
11256 * PIC glink code is the following:
11257 *
11258 * # ith PLT code stub.
11259 * addis 11,30,(plt+(i-1)*4-got)@ha
11260 * lwz 11,(plt+(i-1)*4-got)@l(11)
11261 * mtctr 11
11262 * bctr
11263 *
11264 * # A table of branches, one for each plt entry.
176a0d42 11265 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
11266 * # addresses, so (r11 - res_0) gives the plt index * 4.
11267 * res_0: b PLTresolve
11268 * res_1: b PLTresolve
11269 * .
11270 * # Some number of entries towards the end can be nops
11271 * res_n_m3: nop
11272 * res_n_m2: nop
11273 * res_n_m1:
11274 *
11275 * PLTresolve:
11276 * addis 11,11,(1f-res_0)@ha
11277 * mflr 0
11278 * bcl 20,31,1f
11279 * 1: addi 11,11,(1b-res_0)@l
11280 * mflr 12
11281 * mtlr 0
07d6d2b8 11282 * sub 11,11,12 # r11 = index * 4
a6aa5195 11283 * addis 12,12,(got+4-1b)@ha
07d6d2b8
AM
11284 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
11285 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
a6aa5195
AM
11286 * mtctr 0
11287 * add 0,11,11
07d6d2b8 11288 * add 11,0,11 # r11 = index * 12 = reloc offset.
a6aa5195 11289 * bctr
9e390558 11290 *
176a0d42
AM
11291 * Non-PIC glink code is a little simpler.
11292 *
11293 * # ith PLT code stub.
11294 * lis 11,(plt+(i-1)*4)@ha
11295 * lwz 11,(plt+(i-1)*4)@l(11)
11296 * mtctr 11
11297 * bctr
11298 *
11299 * The branch table is the same, then comes
11300 *
11301 * PLTresolve:
11302 * lis 12,(got+4)@ha
11303 * addis 11,11,(-res_0)@ha
07d6d2b8
AM
11304 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
11305 * addi 11,11,(-res_0)@l # r11 = index * 4
176a0d42
AM
11306 * mtctr 0
11307 * add 0,11,11
07d6d2b8
AM
11308 * lwz 12,(got+8)@l(12) # got[2] contains the map address
11309 * add 11,0,11 # r11 = index * 12 = reloc offset.
176a0d42
AM
11310 * bctr
11311 */
7e8aeb9a 11312
a6aa5195 11313 /* Build the branch table, one for each plt entry (less one),
86b9da88 11314 and perhaps some padding. */
a6aa5195
AM
11315 p = htab->glink->contents;
11316 p += htab->glink_pltresolve;
86b9da88
AM
11317 endp = htab->glink->contents;
11318 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 11319 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
11320 {
11321 bfd_put_32 (output_bfd, B + endp - p, p);
11322 p += 4;
11323 }
11324 while (p < endp)
11325 {
11326 bfd_put_32 (output_bfd, NOP, p);
11327 p += 4;
11328 }
11329
7e8aeb9a 11330 res0 = (htab->glink_pltresolve
86b9da88
AM
11331 + htab->glink->output_section->vma
11332 + htab->glink->output_offset);
11333
da3a2088
AM
11334 if (htab->params->ppc476_workaround)
11335 {
11336 /* Ensure that a call stub at the end of a page doesn't
11337 result in prefetch over the end of the page into the
11338 glink branch table. */
11339 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
11340 bfd_vma page_addr;
11341 bfd_vma glink_start = (htab->glink->output_section->vma
11342 + htab->glink->output_offset);
11343
11344 for (page_addr = res0 & -pagesize;
11345 page_addr > glink_start;
11346 page_addr -= pagesize)
11347 {
11348 /* We have a plt call stub that may need fixing. */
11349 bfd_byte *loc;
11350 unsigned int insn;
11351
11352 loc = htab->glink->contents + page_addr - 4 - glink_start;
11353 insn = bfd_get_32 (output_bfd, loc);
11354 if (insn == BCTR)
11355 {
11356 /* By alignment, we know that there must be at least
11357 one other call stub before this one. */
11358 insn = bfd_get_32 (output_bfd, loc - 16);
11359 if (insn == BCTR)
11360 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
11361 else
11362 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
11363 }
11364 }
11365 }
11366
86b9da88 11367 /* Last comes the PLTresolve stub. */
9e390558 11368 endp = p + GLINK_PLTRESOLVE;
0e1862bb 11369 if (bfd_link_pic (info))
7e8aeb9a 11370 {
a6aa5195 11371 bfd_vma bcl;
d7128ce4 11372
a6aa5195
AM
11373 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
11374 + htab->glink->output_section->vma
11375 + htab->glink->output_offset);
11376
9e390558
AM
11377 bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (bcl - res0), p);
11378 p += 4;
11379 bfd_put_32 (output_bfd, MFLR_0, p);
11380 p += 4;
11381 bfd_put_32 (output_bfd, BCL_20_31, p);
11382 p += 4;
11383 bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (bcl - res0), p);
11384 p += 4;
11385 bfd_put_32 (output_bfd, MFLR_12, p);
11386 p += 4;
11387 bfd_put_32 (output_bfd, MTLR_0, p);
11388 p += 4;
11389 bfd_put_32 (output_bfd, SUB_11_11_12, p);
11390 p += 4;
11391 bfd_put_32 (output_bfd, ADDIS_12_12 + PPC_HA (got + 4 - bcl), p);
11392 p += 4;
a6aa5195
AM
11393 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
11394 {
9e390558
AM
11395 bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4 - bcl), p);
11396 p += 4;
11397 bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8 - bcl), p);
11398 p += 4;
a6aa5195
AM
11399 }
11400 else
11401 {
9e390558
AM
11402 bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4 - bcl), p);
11403 p += 4;
11404 bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
11405 p += 4;
a6aa5195 11406 }
9e390558
AM
11407 bfd_put_32 (output_bfd, MTCTR_0, p);
11408 p += 4;
11409 bfd_put_32 (output_bfd, ADD_0_11_11, p);
7e8aeb9a
AM
11410 }
11411 else
d7128ce4 11412 {
9e390558
AM
11413 bfd_put_32 (output_bfd, LIS_12 + PPC_HA (got + 4), p);
11414 p += 4;
11415 bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (-res0), p);
11416 p += 4;
a6aa5195 11417 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9e390558 11418 bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4), p);
a6aa5195 11419 else
9e390558
AM
11420 bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4), p);
11421 p += 4;
11422 bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (-res0), p);
11423 p += 4;
11424 bfd_put_32 (output_bfd, MTCTR_0, p);
11425 p += 4;
11426 bfd_put_32 (output_bfd, ADD_0_11_11, p);
11427 p += 4;
11428 if (PPC_HA (got + 4) == PPC_HA (got + 8))
11429 bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8), p);
11430 else
11431 bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
11432 }
11433 p += 4;
11434 bfd_put_32 (output_bfd, ADD_11_0_11, p);
11435 p += 4;
407aa07c
AM
11436 bfd_put_32 (output_bfd, BCTR, p);
11437 p += 4;
9e390558
AM
11438 while (p < endp)
11439 {
11440 bfd_put_32 (output_bfd,
11441 htab->params->ppc476_workaround ? BA : NOP, p);
11442 p += 4;
d7128ce4 11443 }
9e390558 11444 BFD_ASSERT (p == endp);
d7128ce4
AM
11445 }
11446
6177242a
AM
11447 if (htab->glink_eh_frame != NULL
11448 && htab->glink_eh_frame->contents != NULL)
11449 {
11450 unsigned char *p = htab->glink_eh_frame->contents;
11451 bfd_vma val;
11452
6177242a
AM
11453 p += sizeof (glink_eh_frame_cie);
11454 /* FDE length. */
6177242a
AM
11455 p += 4;
11456 /* CIE pointer. */
6177242a
AM
11457 p += 4;
11458 /* Offset to .glink. */
11459 val = (htab->glink->output_section->vma
11460 + htab->glink->output_offset);
11461 val -= (htab->glink_eh_frame->output_section->vma
11462 + htab->glink_eh_frame->output_offset);
11463 val -= p - htab->glink_eh_frame->contents;
11464 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 11465
dbaa2011 11466 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
11467 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
11468 htab->glink_eh_frame,
11469 htab->glink_eh_frame->contents))
11470 return FALSE;
11471 }
11472
e87d4038 11473 return ret;
25dbc73a 11474}
e1a9cb8e 11475\f
6d00b590 11476#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 11477#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 11478#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
11479#define TARGET_BIG_NAME "elf32-powerpc"
11480#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 11481#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132
RH
11482#define ELF_MACHINE_CODE EM_PPC
11483#define ELF_MAXPAGESIZE 0x10000
702d1671
AM
11484#define ELF_COMMONPAGESIZE 0x1000
11485#define ELF_RELROPAGESIZE ELF_MAXPAGESIZE
252b5132
RH
11486#define elf_info_to_howto ppc_elf_info_to_howto
11487
11488#ifdef EM_CYGNUS_POWERPC
11489#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
11490#endif
11491
11492#ifdef EM_PPC_OLD
11493#define ELF_MACHINE_ALT2 EM_PPC_OLD
11494#endif
11495
11496#define elf_backend_plt_not_loaded 1
5474d94f 11497#define elf_backend_want_dynrelro 1
252b5132 11498#define elf_backend_can_gc_sections 1
51b64d56 11499#define elf_backend_can_refcount 1
b491616a 11500#define elf_backend_rela_normal 1
53291d1f 11501#define elf_backend_caches_rawsize 1
252b5132 11502
43c40ab2 11503#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 11504#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 11505#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 11506#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 11507#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 11508#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 11509#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 11510#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 11511
feee612b 11512#define elf_backend_object_p ppc_elf_object_p
252b5132 11513#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
252b5132
RH
11514#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
11515#define elf_backend_relocate_section ppc_elf_relocate_section
11516#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
11517#define elf_backend_check_relocs ppc_elf_check_relocs
c0e331c7 11518#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
7fce784e 11519#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
11520#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
11521#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
11522#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 11523#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
11524#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
11525#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
11526#define elf_backend_fake_sections ppc_elf_fake_sections
11527#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
954b63d4 11528#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
11529#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
11530#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 11531#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 11532#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
11533#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
11534#define elf_backend_final_write_processing ppc_elf_final_write_processing
11535#define elf_backend_write_section ppc_elf_write_section
551b43fd 11536#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 11537#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 11538#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 11539#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 11540#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
11541
11542#include "elf32-target.h"
9d8504b1 11543
7b8e7dad
AM
11544/* FreeBSD Target */
11545
11546#undef TARGET_LITTLE_SYM
11547#undef TARGET_LITTLE_NAME
11548
11549#undef TARGET_BIG_SYM
6d00b590 11550#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
11551#undef TARGET_BIG_NAME
11552#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
11553
11554#undef ELF_OSABI
11555#define ELF_OSABI ELFOSABI_FREEBSD
11556
11557#undef elf32_bed
11558#define elf32_bed elf32_powerpc_fbsd_bed
11559
11560#include "elf32-target.h"
11561
9d8504b1
PB
11562/* VxWorks Target */
11563
11564#undef TARGET_LITTLE_SYM
11565#undef TARGET_LITTLE_NAME
11566
11567#undef TARGET_BIG_SYM
6d00b590 11568#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
11569#undef TARGET_BIG_NAME
11570#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
11571
7b8e7dad
AM
11572#undef ELF_OSABI
11573
d5e3d971
PB
11574/* VxWorks uses the elf default section flags for .plt. */
11575static const struct bfd_elf_special_section *
4aef7643 11576ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
9d8504b1 11577{
d5e3d971
PB
11578 if (sec->name == NULL)
11579 return NULL;
11580
11581 if (strcmp (sec->name, ".plt") == 0)
11582 return _bfd_elf_get_sec_type_attr (abfd, sec);
11583
11584 return ppc_elf_get_sec_type_attr (abfd, sec);
11585}
9d8504b1
PB
11586
11587/* Like ppc_elf_link_hash_table_create, but overrides
11588 appropriately for VxWorks. */
11589static struct bfd_link_hash_table *
11590ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
11591{
11592 struct bfd_link_hash_table *ret;
11593
11594 ret = ppc_elf_link_hash_table_create (abfd);
11595 if (ret)
11596 {
11597 struct ppc_elf_link_hash_table *htab
954b63d4 11598 = (struct ppc_elf_link_hash_table *)ret;
9d8504b1 11599 htab->is_vxworks = 1;
4a3dc543 11600 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
11601 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
11602 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
11603 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
11604 }
11605 return ret;
11606}
11607
11608/* Tweak magic VxWorks symbols as they are loaded. */
11609static bfd_boolean
11610ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
11611 struct bfd_link_info *info,
11612 Elf_Internal_Sym *sym,
4aef7643
AM
11613 const char **namep,
11614 flagword *flagsp,
9d8504b1
PB
11615 asection **secp,
11616 bfd_vma *valp)
11617{
4aef7643
AM
11618 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
11619 valp))
9d8504b1
PB
11620 return FALSE;
11621
4aef7643 11622 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
9d8504b1
PB
11623}
11624
9d8504b1
PB
11625static void
11626ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11627{
4aef7643
AM
11628 ppc_elf_final_write_processing (abfd, linker);
11629 elf_vxworks_final_write_processing (abfd, linker);
9d8504b1
PB
11630}
11631
11632/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11633 define it. */
11634#undef elf_backend_want_plt_sym
11635#define elf_backend_want_plt_sym 1
11636#undef elf_backend_want_got_plt
11637#define elf_backend_want_got_plt 1
11638#undef elf_backend_got_symbol_offset
11639#define elf_backend_got_symbol_offset 0
11640#undef elf_backend_plt_not_loaded
11641#define elf_backend_plt_not_loaded 0
11642#undef elf_backend_plt_readonly
11643#define elf_backend_plt_readonly 1
11644#undef elf_backend_got_header_size
11645#define elf_backend_got_header_size 12
64f52338
AM
11646#undef elf_backend_dtrel_excludes_plt
11647#define elf_backend_dtrel_excludes_plt 1
9d8504b1 11648
468392fb
AM
11649#undef bfd_elf32_get_synthetic_symtab
11650
9d8504b1
PB
11651#undef bfd_elf32_bfd_link_hash_table_create
11652#define bfd_elf32_bfd_link_hash_table_create \
11653 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
11654#undef elf_backend_add_symbol_hook
11655#define elf_backend_add_symbol_hook \
11656 ppc_elf_vxworks_add_symbol_hook
11657#undef elf_backend_link_output_symbol_hook
11658#define elf_backend_link_output_symbol_hook \
9c72ff84 11659 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
11660#undef elf_backend_final_write_processing
11661#define elf_backend_final_write_processing \
11662 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
11663#undef elf_backend_get_sec_type_attr
11664#define elf_backend_get_sec_type_attr \
11665 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
11666#undef elf_backend_emit_relocs
11667#define elf_backend_emit_relocs \
11668 elf_vxworks_emit_relocs
11669
11670#undef elf32_bed
11671#define elf32_bed ppc_elf_vxworks_bed
e054468f 11672#undef elf_backend_post_process_headers
9d8504b1
PB
11673
11674#include "elf32-target.h"