Fix building binutils for all 32-bit targets by moving riscv32 target into 64-bit...
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
6f2750fe 2 Copyright (C) 1994-2016 Free Software Foundation, Inc.
252b5132
RH
3 Written by Ian Lance Taylor, Cygnus Support.
4
ae9a127f 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
ae9a127f
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
ae9a127f 10 (at your option) any later version.
252b5132 11
ae9a127f
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
ae9a127f 17 You should have received a copy of the GNU General Public License
fc0bffd6 18 along with this program; if not, write to the
3e110533 19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
53e09e0a 20 Boston, MA 02110-1301, USA. */
252b5132 21
cd123cb7 22
252b5132
RH
23/* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
27
3db64b00 28#include "sysdep.h"
183e98be 29#include <stdarg.h>
252b5132 30#include "bfd.h"
252b5132
RH
31#include "bfdlink.h"
32#include "libbfd.h"
33#include "elf-bfd.h"
34#include "elf/ppc.h"
7619e7c7 35#include "elf32-ppc.h"
9d8504b1 36#include "elf-vxworks.h"
6177242a 37#include "dwarf2.h"
252b5132 38
b9c361e0
JL
39typedef enum split16_format_type
40{
41 split16a_type = 0,
42 split16d_type
43}
44split16_format_type;
45
f0fe0e16 46/* RELA relocations are used here. */
252b5132 47
252b5132 48static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 50static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 52
70bccea4
AM
53/* Branch prediction bit for branch taken relocs. */
54#define BRANCH_PREDICT_BIT 0x200000
55/* Mask to set RA in memory instructions. */
56#define RA_REGISTER_MASK 0x001f0000
57/* Value to shift register by to insert RA. */
58#define RA_REGISTER_SHIFT 16
252b5132
RH
59
60/* The name of the dynamic interpreter. This is put in the .interp
61 section. */
252b5132
RH
62#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
63
d7128ce4 64/* For old-style PLT. */
252b5132
RH
65/* The number of single-slot PLT entries (the rest use two slots). */
66#define PLT_NUM_SINGLE_ENTRIES 8192
67
d7128ce4 68/* For new-style .glink and .plt. */
a6aa5195 69#define GLINK_PLTRESOLVE 16*4
d7128ce4 70#define GLINK_ENTRY_SIZE 4*4
a7f2871e 71#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 72
9d8504b1
PB
73/* VxWorks uses its own plt layout, filled in by the static linker. */
74
75/* The standard VxWorks PLT entry. */
76#define VXWORKS_PLT_ENTRY_SIZE 32
77static const bfd_vma ppc_elf_vxworks_plt_entry
78 [VXWORKS_PLT_ENTRY_SIZE / 4] =
79 {
80 0x3d800000, /* lis r12,0 */
81 0x818c0000, /* lwz r12,0(r12) */
82 0x7d8903a6, /* mtctr r12 */
83 0x4e800420, /* bctr */
84 0x39600000, /* li r11,0 */
85 0x48000000, /* b 14 <.PLT0resolve+0x4> */
86 0x60000000, /* nop */
87 0x60000000, /* nop */
88 };
89static const bfd_vma ppc_elf_vxworks_pic_plt_entry
90 [VXWORKS_PLT_ENTRY_SIZE / 4] =
91 {
92 0x3d9e0000, /* addis r12,r30,0 */
93 0x818c0000, /* lwz r12,0(r12) */
94 0x7d8903a6, /* mtctr r12 */
95 0x4e800420, /* bctr */
96 0x39600000, /* li r11,0 */
97 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
98 0x60000000, /* nop */
99 0x60000000, /* nop */
100 };
101
102/* The initial VxWorks PLT entry. */
103#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
104static const bfd_vma ppc_elf_vxworks_plt0_entry
105 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
106 {
107 0x3d800000, /* lis r12,0 */
108 0x398c0000, /* addi r12,r12,0 */
109 0x800c0008, /* lwz r0,8(r12) */
110 0x7c0903a6, /* mtctr r0 */
111 0x818c0004, /* lwz r12,4(r12) */
112 0x4e800420, /* bctr */
113 0x60000000, /* nop */
114 0x60000000, /* nop */
115 };
116static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
117 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
118 {
119 0x819e0008, /* lwz r12,8(r30) */
120 0x7d8903a6, /* mtctr r12 */
121 0x819e0004, /* lwz r12,4(r30) */
122 0x4e800420, /* bctr */
123 0x60000000, /* nop */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 };
128
129/* For executables, we have some additional relocations in
130 .rela.plt.unloaded, for the kernel loader. */
131
132/* The number of non-JMP_SLOT relocations per PLT0 slot. */
133#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
134/* The number of relocations in the PLTResolve slot. */
135#define VXWORKS_PLTRESOLVE_RELOCS 2
136/* The number of relocations in the PLTResolve slot when when creating
137 a shared library. */
138#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
139
d7128ce4 140/* Some instructions. */
d7128ce4 141#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
142#define ADDIS_11_30 0x3d7e0000
143#define ADDIS_12_12 0x3d8c0000
d7128ce4 144#define ADDI_11_11 0x396b0000
d7128ce4 145#define ADD_0_11_11 0x7c0b5a14
a7f2871e 146#define ADD_3_12_2 0x7c6c1214
d7128ce4 147#define ADD_11_0_11 0x7d605a14
a6aa5195 148#define B 0x48000000
da3a2088 149#define BA 0x48000002
a6aa5195 150#define BCL_20_31 0x429f0005
d7128ce4 151#define BCTR 0x4e800420
a7f2871e
AM
152#define BEQLR 0x4d820020
153#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
154#define LIS_11 0x3d600000
155#define LIS_12 0x3d800000
a6aa5195
AM
156#define LWZU_0_12 0x840c0000
157#define LWZ_0_12 0x800c0000
a7f2871e 158#define LWZ_11_3 0x81630000
a6aa5195
AM
159#define LWZ_11_11 0x816b0000
160#define LWZ_11_30 0x817e0000
a7f2871e 161#define LWZ_12_3 0x81830000
a6aa5195 162#define LWZ_12_12 0x818c0000
a7f2871e
AM
163#define MR_0_3 0x7c601b78
164#define MR_3_0 0x7c030378
a6aa5195
AM
165#define MFLR_0 0x7c0802a6
166#define MFLR_12 0x7d8802a6
167#define MTCTR_0 0x7c0903a6
168#define MTCTR_11 0x7d6903a6
169#define MTLR_0 0x7c0803a6
170#define NOP 0x60000000
171#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
172
173/* Offset of tp and dtp pointers from start of TLS block. */
174#define TP_OFFSET 0x7000
175#define DTP_OFFSET 0x8000
e87d4038
AM
176
177/* The value of a defined global symbol. */
178#define SYM_VAL(SYM) \
179 ((SYM)->root.u.def.section->output_section->vma \
180 + (SYM)->root.u.def.section->output_offset \
181 + (SYM)->root.u.def.value)
7fce784e 182\f
e47cd125 183static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 184
8da6118f 185static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
186 /* This reloc does nothing. */
187 HOWTO (R_PPC_NONE, /* type */
188 0, /* rightshift */
6346d5ca
AM
189 3, /* size (0 = byte, 1 = short, 2 = long) */
190 0, /* bitsize */
b34976b6 191 FALSE, /* pc_relative */
252b5132 192 0, /* bitpos */
86c95733 193 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
194 bfd_elf_generic_reloc, /* special_function */
195 "R_PPC_NONE", /* name */
b34976b6 196 FALSE, /* partial_inplace */
252b5132
RH
197 0, /* src_mask */
198 0, /* dst_mask */
b34976b6 199 FALSE), /* pcrel_offset */
252b5132
RH
200
201 /* A standard 32 bit relocation. */
202 HOWTO (R_PPC_ADDR32, /* type */
203 0, /* rightshift */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
205 32, /* bitsize */
b34976b6 206 FALSE, /* pc_relative */
252b5132 207 0, /* bitpos */
86c95733 208 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
209 bfd_elf_generic_reloc, /* special_function */
210 "R_PPC_ADDR32", /* name */
b34976b6 211 FALSE, /* partial_inplace */
252b5132
RH
212 0, /* src_mask */
213 0xffffffff, /* dst_mask */
b34976b6 214 FALSE), /* pcrel_offset */
252b5132
RH
215
216 /* An absolute 26 bit branch; the lower two bits must be zero.
217 FIXME: we don't check that, we just clear them. */
218 HOWTO (R_PPC_ADDR24, /* type */
219 0, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 26, /* bitsize */
b34976b6 222 FALSE, /* pc_relative */
252b5132 223 0, /* bitpos */
86c95733 224 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
225 bfd_elf_generic_reloc, /* special_function */
226 "R_PPC_ADDR24", /* name */
b34976b6 227 FALSE, /* partial_inplace */
252b5132
RH
228 0, /* src_mask */
229 0x3fffffc, /* dst_mask */
b34976b6 230 FALSE), /* pcrel_offset */
252b5132
RH
231
232 /* A standard 16 bit relocation. */
233 HOWTO (R_PPC_ADDR16, /* type */
234 0, /* rightshift */
235 1, /* size (0 = byte, 1 = short, 2 = long) */
236 16, /* bitsize */
b34976b6 237 FALSE, /* pc_relative */
252b5132
RH
238 0, /* bitpos */
239 complain_overflow_bitfield, /* complain_on_overflow */
240 bfd_elf_generic_reloc, /* special_function */
241 "R_PPC_ADDR16", /* name */
b34976b6 242 FALSE, /* partial_inplace */
252b5132
RH
243 0, /* src_mask */
244 0xffff, /* dst_mask */
b34976b6 245 FALSE), /* pcrel_offset */
252b5132
RH
246
247 /* A 16 bit relocation without overflow. */
248 HOWTO (R_PPC_ADDR16_LO, /* type */
249 0, /* rightshift */
250 1, /* size (0 = byte, 1 = short, 2 = long) */
251 16, /* bitsize */
b34976b6 252 FALSE, /* pc_relative */
252b5132
RH
253 0, /* bitpos */
254 complain_overflow_dont,/* complain_on_overflow */
255 bfd_elf_generic_reloc, /* special_function */
256 "R_PPC_ADDR16_LO", /* name */
b34976b6 257 FALSE, /* partial_inplace */
252b5132
RH
258 0, /* src_mask */
259 0xffff, /* dst_mask */
b34976b6 260 FALSE), /* pcrel_offset */
252b5132
RH
261
262 /* The high order 16 bits of an address. */
263 HOWTO (R_PPC_ADDR16_HI, /* type */
264 16, /* rightshift */
265 1, /* size (0 = byte, 1 = short, 2 = long) */
266 16, /* bitsize */
b34976b6 267 FALSE, /* pc_relative */
252b5132
RH
268 0, /* bitpos */
269 complain_overflow_dont, /* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_PPC_ADDR16_HI", /* name */
b34976b6 272 FALSE, /* partial_inplace */
252b5132
RH
273 0, /* src_mask */
274 0xffff, /* dst_mask */
b34976b6 275 FALSE), /* pcrel_offset */
252b5132
RH
276
277 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 278 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
279 HOWTO (R_PPC_ADDR16_HA, /* type */
280 16, /* rightshift */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
b34976b6 283 FALSE, /* pc_relative */
252b5132
RH
284 0, /* bitpos */
285 complain_overflow_dont, /* complain_on_overflow */
286 ppc_elf_addr16_ha_reloc, /* special_function */
287 "R_PPC_ADDR16_HA", /* name */
b34976b6 288 FALSE, /* partial_inplace */
252b5132
RH
289 0, /* src_mask */
290 0xffff, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
252b5132
RH
292
293 /* An absolute 16 bit branch; the lower two bits must be zero.
294 FIXME: we don't check that, we just clear them. */
295 HOWTO (R_PPC_ADDR14, /* type */
296 0, /* rightshift */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
b34976b6 299 FALSE, /* pc_relative */
252b5132 300 0, /* bitpos */
86c95733 301 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
302 bfd_elf_generic_reloc, /* special_function */
303 "R_PPC_ADDR14", /* name */
b34976b6 304 FALSE, /* partial_inplace */
252b5132
RH
305 0, /* src_mask */
306 0xfffc, /* dst_mask */
b34976b6 307 FALSE), /* pcrel_offset */
252b5132
RH
308
309 /* An absolute 16 bit branch, for which bit 10 should be set to
310 indicate that the branch is expected to be taken. The lower two
8da6118f 311 bits must be zero. */
252b5132
RH
312 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
313 0, /* rightshift */
314 2, /* size (0 = byte, 1 = short, 2 = long) */
315 16, /* bitsize */
b34976b6 316 FALSE, /* pc_relative */
252b5132 317 0, /* bitpos */
86c95733 318 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
319 bfd_elf_generic_reloc, /* special_function */
320 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 321 FALSE, /* partial_inplace */
252b5132
RH
322 0, /* src_mask */
323 0xfffc, /* dst_mask */
b34976b6 324 FALSE), /* pcrel_offset */
252b5132
RH
325
326 /* An absolute 16 bit branch, for which bit 10 should be set to
327 indicate that the branch is not expected to be taken. The lower
328 two bits must be zero. */
329 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
330 0, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 16, /* bitsize */
b34976b6 333 FALSE, /* pc_relative */
252b5132 334 0, /* bitpos */
86c95733 335 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
336 bfd_elf_generic_reloc, /* special_function */
337 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 338 FALSE, /* partial_inplace */
252b5132
RH
339 0, /* src_mask */
340 0xfffc, /* dst_mask */
b34976b6 341 FALSE), /* pcrel_offset */
252b5132 342
8da6118f 343 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
344 HOWTO (R_PPC_REL24, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 26, /* bitsize */
b34976b6 348 TRUE, /* pc_relative */
252b5132
RH
349 0, /* bitpos */
350 complain_overflow_signed, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_PPC_REL24", /* name */
b34976b6 353 FALSE, /* partial_inplace */
252b5132
RH
354 0, /* src_mask */
355 0x3fffffc, /* dst_mask */
b34976b6 356 TRUE), /* pcrel_offset */
252b5132 357
8da6118f 358 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
359 HOWTO (R_PPC_REL14, /* type */
360 0, /* rightshift */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
362 16, /* bitsize */
b34976b6 363 TRUE, /* pc_relative */
252b5132
RH
364 0, /* bitpos */
365 complain_overflow_signed, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_PPC_REL14", /* name */
b34976b6 368 FALSE, /* partial_inplace */
252b5132
RH
369 0, /* src_mask */
370 0xfffc, /* dst_mask */
b34976b6 371 TRUE), /* pcrel_offset */
252b5132 372
8da6118f 373 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
374 the branch is expected to be taken. The lower two bits must be
375 zero. */
376 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 16, /* bitsize */
b34976b6 380 TRUE, /* pc_relative */
252b5132
RH
381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
383 bfd_elf_generic_reloc, /* special_function */
384 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 385 FALSE, /* partial_inplace */
252b5132
RH
386 0, /* src_mask */
387 0xfffc, /* dst_mask */
b34976b6 388 TRUE), /* pcrel_offset */
252b5132 389
8da6118f 390 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
391 the branch is not expected to be taken. The lower two bits must
392 be zero. */
393 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
394 0, /* rightshift */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
b34976b6 397 TRUE, /* pc_relative */
252b5132
RH
398 0, /* bitpos */
399 complain_overflow_signed, /* complain_on_overflow */
400 bfd_elf_generic_reloc, /* special_function */
401 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 402 FALSE, /* partial_inplace */
252b5132
RH
403 0, /* src_mask */
404 0xfffc, /* dst_mask */
b34976b6 405 TRUE), /* pcrel_offset */
252b5132
RH
406
407 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
408 symbol. */
409 HOWTO (R_PPC_GOT16, /* type */
410 0, /* rightshift */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
412 16, /* bitsize */
b34976b6 413 FALSE, /* pc_relative */
252b5132
RH
414 0, /* bitpos */
415 complain_overflow_signed, /* complain_on_overflow */
3ce51288 416 ppc_elf_unhandled_reloc, /* special_function */
252b5132 417 "R_PPC_GOT16", /* name */
b34976b6 418 FALSE, /* partial_inplace */
252b5132
RH
419 0, /* src_mask */
420 0xffff, /* dst_mask */
b34976b6 421 FALSE), /* pcrel_offset */
252b5132
RH
422
423 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
424 the symbol. */
425 HOWTO (R_PPC_GOT16_LO, /* type */
426 0, /* rightshift */
427 1, /* size (0 = byte, 1 = short, 2 = long) */
428 16, /* bitsize */
b34976b6 429 FALSE, /* pc_relative */
252b5132
RH
430 0, /* bitpos */
431 complain_overflow_dont, /* complain_on_overflow */
3ce51288 432 ppc_elf_unhandled_reloc, /* special_function */
252b5132 433 "R_PPC_GOT16_LO", /* name */
b34976b6 434 FALSE, /* partial_inplace */
252b5132
RH
435 0, /* src_mask */
436 0xffff, /* dst_mask */
b34976b6 437 FALSE), /* pcrel_offset */
252b5132
RH
438
439 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
440 the symbol. */
441 HOWTO (R_PPC_GOT16_HI, /* type */
442 16, /* rightshift */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
444 16, /* bitsize */
b34976b6 445 FALSE, /* pc_relative */
252b5132 446 0, /* bitpos */
86c95733 447 complain_overflow_dont, /* complain_on_overflow */
3ce51288 448 ppc_elf_unhandled_reloc, /* special_function */
252b5132 449 "R_PPC_GOT16_HI", /* name */
b34976b6 450 FALSE, /* partial_inplace */
252b5132
RH
451 0, /* src_mask */
452 0xffff, /* dst_mask */
b34976b6 453 FALSE), /* pcrel_offset */
252b5132
RH
454
455 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
456 the symbol. */
457 HOWTO (R_PPC_GOT16_HA, /* type */
458 16, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
b34976b6 461 FALSE, /* pc_relative */
252b5132 462 0, /* bitpos */
86c95733 463 complain_overflow_dont, /* complain_on_overflow */
3ce51288 464 ppc_elf_unhandled_reloc, /* special_function */
252b5132 465 "R_PPC_GOT16_HA", /* name */
b34976b6 466 FALSE, /* partial_inplace */
252b5132
RH
467 0, /* src_mask */
468 0xffff, /* dst_mask */
b34976b6 469 FALSE), /* pcrel_offset */
252b5132
RH
470
471 /* Like R_PPC_REL24, but referring to the procedure linkage table
472 entry for the symbol. */
473 HOWTO (R_PPC_PLTREL24, /* type */
474 0, /* rightshift */
475 2, /* size (0 = byte, 1 = short, 2 = long) */
476 26, /* bitsize */
b34976b6 477 TRUE, /* pc_relative */
252b5132 478 0, /* bitpos */
3ce51288
AM
479 complain_overflow_signed, /* complain_on_overflow */
480 ppc_elf_unhandled_reloc, /* special_function */
252b5132 481 "R_PPC_PLTREL24", /* name */
b34976b6 482 FALSE, /* partial_inplace */
252b5132
RH
483 0, /* src_mask */
484 0x3fffffc, /* dst_mask */
b34976b6 485 TRUE), /* pcrel_offset */
252b5132
RH
486
487 /* This is used only by the dynamic linker. The symbol should exist
488 both in the object being run and in some shared library. The
489 dynamic linker copies the data addressed by the symbol from the
490 shared library into the object, because the object being
491 run has to have the data at some particular address. */
492 HOWTO (R_PPC_COPY, /* type */
493 0, /* rightshift */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
495 32, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
252b5132 497 0, /* bitpos */
86c95733 498 complain_overflow_dont, /* complain_on_overflow */
3ce51288 499 ppc_elf_unhandled_reloc, /* special_function */
252b5132 500 "R_PPC_COPY", /* name */
b34976b6 501 FALSE, /* partial_inplace */
252b5132
RH
502 0, /* src_mask */
503 0, /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
252b5132
RH
505
506 /* Like R_PPC_ADDR32, but used when setting global offset table
507 entries. */
508 HOWTO (R_PPC_GLOB_DAT, /* type */
509 0, /* rightshift */
510 2, /* size (0 = byte, 1 = short, 2 = long) */
511 32, /* bitsize */
b34976b6 512 FALSE, /* pc_relative */
252b5132 513 0, /* bitpos */
86c95733 514 complain_overflow_dont, /* complain_on_overflow */
3ce51288 515 ppc_elf_unhandled_reloc, /* special_function */
252b5132 516 "R_PPC_GLOB_DAT", /* name */
b34976b6 517 FALSE, /* partial_inplace */
252b5132
RH
518 0, /* src_mask */
519 0xffffffff, /* dst_mask */
b34976b6 520 FALSE), /* pcrel_offset */
252b5132
RH
521
522 /* Marks a procedure linkage table entry for a symbol. */
523 HOWTO (R_PPC_JMP_SLOT, /* type */
524 0, /* rightshift */
525 2, /* size (0 = byte, 1 = short, 2 = long) */
526 32, /* bitsize */
b34976b6 527 FALSE, /* pc_relative */
252b5132 528 0, /* bitpos */
86c95733 529 complain_overflow_dont, /* complain_on_overflow */
3ce51288 530 ppc_elf_unhandled_reloc, /* special_function */
252b5132 531 "R_PPC_JMP_SLOT", /* name */
b34976b6 532 FALSE, /* partial_inplace */
252b5132
RH
533 0, /* src_mask */
534 0, /* dst_mask */
b34976b6 535 FALSE), /* pcrel_offset */
252b5132
RH
536
537 /* Used only by the dynamic linker. When the object is run, this
538 longword is set to the load address of the object, plus the
539 addend. */
540 HOWTO (R_PPC_RELATIVE, /* type */
541 0, /* rightshift */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
543 32, /* bitsize */
b34976b6 544 FALSE, /* pc_relative */
252b5132 545 0, /* bitpos */
86c95733 546 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
547 bfd_elf_generic_reloc, /* special_function */
548 "R_PPC_RELATIVE", /* name */
b34976b6 549 FALSE, /* partial_inplace */
252b5132
RH
550 0, /* src_mask */
551 0xffffffff, /* dst_mask */
b34976b6 552 FALSE), /* pcrel_offset */
252b5132
RH
553
554 /* Like R_PPC_REL24, but uses the value of the symbol within the
555 object rather than the final value. Normally used for
556 _GLOBAL_OFFSET_TABLE_. */
557 HOWTO (R_PPC_LOCAL24PC, /* type */
558 0, /* rightshift */
559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 26, /* bitsize */
b34976b6 561 TRUE, /* pc_relative */
252b5132
RH
562 0, /* bitpos */
563 complain_overflow_signed, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
565 "R_PPC_LOCAL24PC", /* name */
b34976b6 566 FALSE, /* partial_inplace */
252b5132
RH
567 0, /* src_mask */
568 0x3fffffc, /* dst_mask */
b34976b6 569 TRUE), /* pcrel_offset */
252b5132
RH
570
571 /* Like R_PPC_ADDR32, but may be unaligned. */
572 HOWTO (R_PPC_UADDR32, /* type */
573 0, /* rightshift */
574 2, /* size (0 = byte, 1 = short, 2 = long) */
575 32, /* bitsize */
b34976b6 576 FALSE, /* pc_relative */
252b5132 577 0, /* bitpos */
86c95733 578 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
579 bfd_elf_generic_reloc, /* special_function */
580 "R_PPC_UADDR32", /* name */
b34976b6 581 FALSE, /* partial_inplace */
252b5132
RH
582 0, /* src_mask */
583 0xffffffff, /* dst_mask */
b34976b6 584 FALSE), /* pcrel_offset */
252b5132
RH
585
586 /* Like R_PPC_ADDR16, but may be unaligned. */
587 HOWTO (R_PPC_UADDR16, /* type */
588 0, /* rightshift */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
590 16, /* bitsize */
b34976b6 591 FALSE, /* pc_relative */
252b5132
RH
592 0, /* bitpos */
593 complain_overflow_bitfield, /* complain_on_overflow */
594 bfd_elf_generic_reloc, /* special_function */
595 "R_PPC_UADDR16", /* name */
b34976b6 596 FALSE, /* partial_inplace */
252b5132
RH
597 0, /* src_mask */
598 0xffff, /* dst_mask */
b34976b6 599 FALSE), /* pcrel_offset */
252b5132
RH
600
601 /* 32-bit PC relative */
602 HOWTO (R_PPC_REL32, /* type */
603 0, /* rightshift */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
605 32, /* bitsize */
b34976b6 606 TRUE, /* pc_relative */
252b5132 607 0, /* bitpos */
86c95733 608 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
609 bfd_elf_generic_reloc, /* special_function */
610 "R_PPC_REL32", /* name */
b34976b6 611 FALSE, /* partial_inplace */
252b5132
RH
612 0, /* src_mask */
613 0xffffffff, /* dst_mask */
b34976b6 614 TRUE), /* pcrel_offset */
252b5132
RH
615
616 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 617 FIXME: not supported. */
252b5132
RH
618 HOWTO (R_PPC_PLT32, /* type */
619 0, /* rightshift */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
621 32, /* bitsize */
b34976b6 622 FALSE, /* pc_relative */
252b5132 623 0, /* bitpos */
86c95733 624 complain_overflow_dont, /* complain_on_overflow */
3ce51288 625 ppc_elf_unhandled_reloc, /* special_function */
252b5132 626 "R_PPC_PLT32", /* name */
b34976b6 627 FALSE, /* partial_inplace */
252b5132
RH
628 0, /* src_mask */
629 0, /* dst_mask */
b34976b6 630 FALSE), /* pcrel_offset */
252b5132
RH
631
632 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 633 FIXME: not supported. */
252b5132
RH
634 HOWTO (R_PPC_PLTREL32, /* type */
635 0, /* rightshift */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
637 32, /* bitsize */
b34976b6 638 TRUE, /* pc_relative */
252b5132 639 0, /* bitpos */
86c95733 640 complain_overflow_dont, /* complain_on_overflow */
3ce51288 641 ppc_elf_unhandled_reloc, /* special_function */
252b5132 642 "R_PPC_PLTREL32", /* name */
b34976b6 643 FALSE, /* partial_inplace */
252b5132
RH
644 0, /* src_mask */
645 0, /* dst_mask */
b34976b6 646 TRUE), /* pcrel_offset */
252b5132
RH
647
648 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
649 the symbol. */
650 HOWTO (R_PPC_PLT16_LO, /* type */
651 0, /* rightshift */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
653 16, /* bitsize */
b34976b6 654 FALSE, /* pc_relative */
252b5132
RH
655 0, /* bitpos */
656 complain_overflow_dont, /* complain_on_overflow */
3ce51288 657 ppc_elf_unhandled_reloc, /* special_function */
252b5132 658 "R_PPC_PLT16_LO", /* name */
b34976b6 659 FALSE, /* partial_inplace */
252b5132
RH
660 0, /* src_mask */
661 0xffff, /* dst_mask */
b34976b6 662 FALSE), /* pcrel_offset */
252b5132
RH
663
664 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
665 the symbol. */
666 HOWTO (R_PPC_PLT16_HI, /* type */
667 16, /* rightshift */
668 1, /* size (0 = byte, 1 = short, 2 = long) */
669 16, /* bitsize */
b34976b6 670 FALSE, /* pc_relative */
252b5132 671 0, /* bitpos */
86c95733 672 complain_overflow_dont, /* complain_on_overflow */
3ce51288 673 ppc_elf_unhandled_reloc, /* special_function */
252b5132 674 "R_PPC_PLT16_HI", /* name */
b34976b6 675 FALSE, /* partial_inplace */
252b5132
RH
676 0, /* src_mask */
677 0xffff, /* dst_mask */
b34976b6 678 FALSE), /* pcrel_offset */
252b5132
RH
679
680 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
681 the symbol. */
682 HOWTO (R_PPC_PLT16_HA, /* type */
683 16, /* rightshift */
684 1, /* size (0 = byte, 1 = short, 2 = long) */
685 16, /* bitsize */
b34976b6 686 FALSE, /* pc_relative */
252b5132 687 0, /* bitpos */
86c95733 688 complain_overflow_dont, /* complain_on_overflow */
3ce51288 689 ppc_elf_unhandled_reloc, /* special_function */
252b5132 690 "R_PPC_PLT16_HA", /* name */
b34976b6 691 FALSE, /* partial_inplace */
252b5132
RH
692 0, /* src_mask */
693 0xffff, /* dst_mask */
b34976b6 694 FALSE), /* pcrel_offset */
252b5132
RH
695
696 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
697 small data items. */
698 HOWTO (R_PPC_SDAREL16, /* type */
699 0, /* rightshift */
700 1, /* size (0 = byte, 1 = short, 2 = long) */
701 16, /* bitsize */
b34976b6 702 FALSE, /* pc_relative */
252b5132
RH
703 0, /* bitpos */
704 complain_overflow_signed, /* complain_on_overflow */
3ce51288 705 ppc_elf_unhandled_reloc, /* special_function */
252b5132 706 "R_PPC_SDAREL16", /* name */
b34976b6 707 FALSE, /* partial_inplace */
252b5132
RH
708 0, /* src_mask */
709 0xffff, /* dst_mask */
b34976b6 710 FALSE), /* pcrel_offset */
252b5132 711
c061c2d8 712 /* 16-bit section relative relocation. */
252b5132
RH
713 HOWTO (R_PPC_SECTOFF, /* type */
714 0, /* rightshift */
c061c2d8
AM
715 1, /* size (0 = byte, 1 = short, 2 = long) */
716 16, /* bitsize */
b34976b6 717 FALSE, /* pc_relative */
252b5132 718 0, /* bitpos */
86c95733 719 complain_overflow_signed, /* complain_on_overflow */
3ce51288 720 ppc_elf_unhandled_reloc, /* special_function */
252b5132 721 "R_PPC_SECTOFF", /* name */
b34976b6 722 FALSE, /* partial_inplace */
252b5132 723 0, /* src_mask */
c061c2d8 724 0xffff, /* dst_mask */
b34976b6 725 FALSE), /* pcrel_offset */
252b5132 726
c3668558 727 /* 16-bit lower half section relative relocation. */
252b5132
RH
728 HOWTO (R_PPC_SECTOFF_LO, /* type */
729 0, /* rightshift */
730 1, /* size (0 = byte, 1 = short, 2 = long) */
731 16, /* bitsize */
b34976b6 732 FALSE, /* pc_relative */
252b5132
RH
733 0, /* bitpos */
734 complain_overflow_dont, /* complain_on_overflow */
3ce51288 735 ppc_elf_unhandled_reloc, /* special_function */
252b5132 736 "R_PPC_SECTOFF_LO", /* name */
b34976b6 737 FALSE, /* partial_inplace */
252b5132
RH
738 0, /* src_mask */
739 0xffff, /* dst_mask */
b34976b6 740 FALSE), /* pcrel_offset */
252b5132 741
c3668558 742 /* 16-bit upper half section relative relocation. */
252b5132
RH
743 HOWTO (R_PPC_SECTOFF_HI, /* type */
744 16, /* rightshift */
745 1, /* size (0 = byte, 1 = short, 2 = long) */
746 16, /* bitsize */
b34976b6 747 FALSE, /* pc_relative */
252b5132 748 0, /* bitpos */
86c95733 749 complain_overflow_dont, /* complain_on_overflow */
3ce51288 750 ppc_elf_unhandled_reloc, /* special_function */
252b5132 751 "R_PPC_SECTOFF_HI", /* name */
b34976b6 752 FALSE, /* partial_inplace */
252b5132
RH
753 0, /* src_mask */
754 0xffff, /* dst_mask */
b34976b6 755 FALSE), /* pcrel_offset */
252b5132 756
c3668558 757 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
758 HOWTO (R_PPC_SECTOFF_HA, /* type */
759 16, /* rightshift */
760 1, /* size (0 = byte, 1 = short, 2 = long) */
761 16, /* bitsize */
b34976b6 762 FALSE, /* pc_relative */
252b5132 763 0, /* bitpos */
86c95733 764 complain_overflow_dont, /* complain_on_overflow */
3ce51288 765 ppc_elf_unhandled_reloc, /* special_function */
252b5132 766 "R_PPC_SECTOFF_HA", /* name */
b34976b6 767 FALSE, /* partial_inplace */
252b5132
RH
768 0, /* src_mask */
769 0xffff, /* dst_mask */
b34976b6 770 FALSE), /* pcrel_offset */
252b5132 771
727fc41e 772 /* Marker relocs for TLS. */
7619e7c7 773 HOWTO (R_PPC_TLS,
252b5132
RH
774 0, /* rightshift */
775 2, /* size (0 = byte, 1 = short, 2 = long) */
776 32, /* bitsize */
b34976b6 777 FALSE, /* pc_relative */
252b5132 778 0, /* bitpos */
7619e7c7 779 complain_overflow_dont, /* complain_on_overflow */
252b5132 780 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
781 "R_PPC_TLS", /* name */
782 FALSE, /* partial_inplace */
783 0, /* src_mask */
784 0, /* dst_mask */
785 FALSE), /* pcrel_offset */
786
727fc41e
AM
787 HOWTO (R_PPC_TLSGD,
788 0, /* rightshift */
789 2, /* size (0 = byte, 1 = short, 2 = long) */
790 32, /* bitsize */
791 FALSE, /* pc_relative */
792 0, /* bitpos */
793 complain_overflow_dont, /* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_PPC_TLSGD", /* name */
796 FALSE, /* partial_inplace */
797 0, /* src_mask */
798 0, /* dst_mask */
799 FALSE), /* pcrel_offset */
800
801 HOWTO (R_PPC_TLSLD,
802 0, /* rightshift */
803 2, /* size (0 = byte, 1 = short, 2 = long) */
804 32, /* bitsize */
805 FALSE, /* pc_relative */
806 0, /* bitpos */
807 complain_overflow_dont, /* complain_on_overflow */
808 bfd_elf_generic_reloc, /* special_function */
809 "R_PPC_TLSLD", /* name */
810 FALSE, /* partial_inplace */
811 0, /* src_mask */
812 0, /* dst_mask */
813 FALSE), /* pcrel_offset */
814
7619e7c7
AM
815 /* Computes the load module index of the load module that contains the
816 definition of its TLS sym. */
817 HOWTO (R_PPC_DTPMOD32,
818 0, /* rightshift */
819 2, /* size (0 = byte, 1 = short, 2 = long) */
820 32, /* bitsize */
821 FALSE, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_dont, /* complain_on_overflow */
824 ppc_elf_unhandled_reloc, /* special_function */
825 "R_PPC_DTPMOD32", /* name */
b34976b6 826 FALSE, /* partial_inplace */
252b5132
RH
827 0, /* src_mask */
828 0xffffffff, /* dst_mask */
b34976b6 829 FALSE), /* pcrel_offset */
252b5132 830
7619e7c7
AM
831 /* Computes a dtv-relative displacement, the difference between the value
832 of sym+add and the base address of the thread-local storage block that
833 contains the definition of sym, minus 0x8000. */
834 HOWTO (R_PPC_DTPREL32,
835 0, /* rightshift */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
837 32, /* bitsize */
838 FALSE, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_dont, /* complain_on_overflow */
841 ppc_elf_unhandled_reloc, /* special_function */
842 "R_PPC_DTPREL32", /* name */
843 FALSE, /* partial_inplace */
844 0, /* src_mask */
845 0xffffffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
847
848 /* A 16 bit dtprel reloc. */
849 HOWTO (R_PPC_DTPREL16,
252b5132
RH
850 0, /* rightshift */
851 1, /* size (0 = byte, 1 = short, 2 = long) */
852 16, /* bitsize */
b34976b6 853 FALSE, /* pc_relative */
252b5132 854 0, /* bitpos */
7619e7c7
AM
855 complain_overflow_signed, /* complain_on_overflow */
856 ppc_elf_unhandled_reloc, /* special_function */
857 "R_PPC_DTPREL16", /* name */
b34976b6 858 FALSE, /* partial_inplace */
252b5132
RH
859 0, /* src_mask */
860 0xffff, /* dst_mask */
b34976b6 861 FALSE), /* pcrel_offset */
252b5132 862
7619e7c7
AM
863 /* Like DTPREL16, but no overflow. */
864 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
865 0, /* rightshift */
866 1, /* size (0 = byte, 1 = short, 2 = long) */
867 16, /* bitsize */
b34976b6 868 FALSE, /* pc_relative */
252b5132 869 0, /* bitpos */
7619e7c7
AM
870 complain_overflow_dont, /* complain_on_overflow */
871 ppc_elf_unhandled_reloc, /* special_function */
872 "R_PPC_DTPREL16_LO", /* name */
b34976b6 873 FALSE, /* partial_inplace */
252b5132
RH
874 0, /* src_mask */
875 0xffff, /* dst_mask */
b34976b6 876 FALSE), /* pcrel_offset */
252b5132 877
7619e7c7
AM
878 /* Like DTPREL16_LO, but next higher group of 16 bits. */
879 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
880 16, /* rightshift */
881 1, /* size (0 = byte, 1 = short, 2 = long) */
882 16, /* bitsize */
b34976b6 883 FALSE, /* pc_relative */
252b5132
RH
884 0, /* bitpos */
885 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
886 ppc_elf_unhandled_reloc, /* special_function */
887 "R_PPC_DTPREL16_HI", /* name */
b34976b6 888 FALSE, /* partial_inplace */
252b5132
RH
889 0, /* src_mask */
890 0xffff, /* dst_mask */
b34976b6 891 FALSE), /* pcrel_offset */
252b5132 892
7619e7c7
AM
893 /* Like DTPREL16_HI, but adjust for low 16 bits. */
894 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
895 16, /* rightshift */
896 1, /* size (0 = byte, 1 = short, 2 = long) */
897 16, /* bitsize */
b34976b6 898 FALSE, /* pc_relative */
252b5132
RH
899 0, /* bitpos */
900 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
901 ppc_elf_unhandled_reloc, /* special_function */
902 "R_PPC_DTPREL16_HA", /* name */
b34976b6 903 FALSE, /* partial_inplace */
252b5132
RH
904 0, /* src_mask */
905 0xffff, /* dst_mask */
b34976b6 906 FALSE), /* pcrel_offset */
252b5132 907
7619e7c7
AM
908 /* Computes a tp-relative displacement, the difference between the value of
909 sym+add and the value of the thread pointer (r13). */
910 HOWTO (R_PPC_TPREL32,
911 0, /* rightshift */
912 2, /* size (0 = byte, 1 = short, 2 = long) */
913 32, /* bitsize */
914 FALSE, /* pc_relative */
915 0, /* bitpos */
916 complain_overflow_dont, /* complain_on_overflow */
917 ppc_elf_unhandled_reloc, /* special_function */
918 "R_PPC_TPREL32", /* name */
919 FALSE, /* partial_inplace */
920 0, /* src_mask */
921 0xffffffff, /* dst_mask */
922 FALSE), /* pcrel_offset */
923
924 /* A 16 bit tprel reloc. */
925 HOWTO (R_PPC_TPREL16,
252b5132
RH
926 0, /* rightshift */
927 1, /* size (0 = byte, 1 = short, 2 = long) */
928 16, /* bitsize */
b34976b6 929 FALSE, /* pc_relative */
252b5132 930 0, /* bitpos */
7619e7c7
AM
931 complain_overflow_signed, /* complain_on_overflow */
932 ppc_elf_unhandled_reloc, /* special_function */
933 "R_PPC_TPREL16", /* name */
b34976b6 934 FALSE, /* partial_inplace */
252b5132
RH
935 0, /* src_mask */
936 0xffff, /* dst_mask */
b34976b6 937 FALSE), /* pcrel_offset */
252b5132 938
7619e7c7
AM
939 /* Like TPREL16, but no overflow. */
940 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
941 0, /* rightshift */
942 1, /* size (0 = byte, 1 = short, 2 = long) */
943 16, /* bitsize */
b34976b6 944 FALSE, /* pc_relative */
252b5132 945 0, /* bitpos */
7619e7c7
AM
946 complain_overflow_dont, /* complain_on_overflow */
947 ppc_elf_unhandled_reloc, /* special_function */
948 "R_PPC_TPREL16_LO", /* name */
b34976b6 949 FALSE, /* partial_inplace */
252b5132
RH
950 0, /* src_mask */
951 0xffff, /* dst_mask */
b34976b6 952 FALSE), /* pcrel_offset */
252b5132 953
7619e7c7
AM
954 /* Like TPREL16_LO, but next higher group of 16 bits. */
955 HOWTO (R_PPC_TPREL16_HI,
956 16, /* rightshift */
957 1, /* size (0 = byte, 1 = short, 2 = long) */
958 16, /* bitsize */
959 FALSE, /* pc_relative */
960 0, /* bitpos */
961 complain_overflow_dont, /* complain_on_overflow */
962 ppc_elf_unhandled_reloc, /* special_function */
963 "R_PPC_TPREL16_HI", /* name */
964 FALSE, /* partial_inplace */
965 0, /* src_mask */
966 0xffff, /* dst_mask */
967 FALSE), /* pcrel_offset */
968
969 /* Like TPREL16_HI, but adjust for low 16 bits. */
970 HOWTO (R_PPC_TPREL16_HA,
971 16, /* rightshift */
972 1, /* size (0 = byte, 1 = short, 2 = long) */
973 16, /* bitsize */
974 FALSE, /* pc_relative */
975 0, /* bitpos */
976 complain_overflow_dont, /* complain_on_overflow */
977 ppc_elf_unhandled_reloc, /* special_function */
978 "R_PPC_TPREL16_HA", /* name */
979 FALSE, /* partial_inplace */
980 0, /* src_mask */
981 0xffff, /* dst_mask */
982 FALSE), /* pcrel_offset */
983
984 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
985 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
986 to the first entry. */
987 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
988 0, /* rightshift */
989 1, /* size (0 = byte, 1 = short, 2 = long) */
990 16, /* bitsize */
b34976b6 991 FALSE, /* pc_relative */
252b5132
RH
992 0, /* bitpos */
993 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
994 ppc_elf_unhandled_reloc, /* special_function */
995 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 996 FALSE, /* partial_inplace */
252b5132
RH
997 0, /* src_mask */
998 0xffff, /* dst_mask */
b34976b6 999 FALSE), /* pcrel_offset */
252b5132 1000
7619e7c7
AM
1001 /* Like GOT_TLSGD16, but no overflow. */
1002 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1003 0, /* rightshift */
7619e7c7 1004 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1005 16, /* bitsize */
b34976b6 1006 FALSE, /* pc_relative */
252b5132 1007 0, /* bitpos */
7619e7c7
AM
1008 complain_overflow_dont, /* complain_on_overflow */
1009 ppc_elf_unhandled_reloc, /* special_function */
1010 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1011 FALSE, /* partial_inplace */
252b5132
RH
1012 0, /* src_mask */
1013 0xffff, /* dst_mask */
b34976b6 1014 FALSE), /* pcrel_offset */
252b5132 1015
7619e7c7
AM
1016 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1017 HOWTO (R_PPC_GOT_TLSGD16_HI,
1018 16, /* rightshift */
1019 1, /* size (0 = byte, 1 = short, 2 = long) */
1020 16, /* bitsize */
1021 FALSE, /* pc_relative */
1022 0, /* bitpos */
1023 complain_overflow_dont, /* complain_on_overflow */
1024 ppc_elf_unhandled_reloc, /* special_function */
1025 "R_PPC_GOT_TLSGD16_HI", /* name */
1026 FALSE, /* partial_inplace */
1027 0, /* src_mask */
1028 0xffff, /* dst_mask */
1029 FALSE), /* pcrel_offset */
252b5132 1030
7619e7c7
AM
1031 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1032 HOWTO (R_PPC_GOT_TLSGD16_HA,
1033 16, /* rightshift */
1034 1, /* size (0 = byte, 1 = short, 2 = long) */
1035 16, /* bitsize */
1036 FALSE, /* pc_relative */
1037 0, /* bitpos */
1038 complain_overflow_dont, /* complain_on_overflow */
1039 ppc_elf_unhandled_reloc, /* special_function */
1040 "R_PPC_GOT_TLSGD16_HA", /* name */
1041 FALSE, /* partial_inplace */
1042 0, /* src_mask */
1043 0xffff, /* dst_mask */
1044 FALSE), /* pcrel_offset */
1045
1046 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1047 with values (sym+add)@dtpmod and zero, and computes the offset to the
1048 first entry. */
1049 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1050 0, /* rightshift */
1051 1, /* size (0 = byte, 1 = short, 2 = long) */
1052 16, /* bitsize */
7619e7c7 1053 FALSE, /* pc_relative */
252b5132
RH
1054 0, /* bitpos */
1055 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1056 ppc_elf_unhandled_reloc, /* special_function */
1057 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1058 FALSE, /* partial_inplace */
252b5132
RH
1059 0, /* src_mask */
1060 0xffff, /* dst_mask */
b34976b6 1061 FALSE), /* pcrel_offset */
252b5132 1062
7619e7c7
AM
1063 /* Like GOT_TLSLD16, but no overflow. */
1064 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1065 0, /* rightshift */
7619e7c7
AM
1066 1, /* size (0 = byte, 1 = short, 2 = long) */
1067 16, /* bitsize */
b34976b6 1068 FALSE, /* pc_relative */
252b5132
RH
1069 0, /* bitpos */
1070 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1071 ppc_elf_unhandled_reloc, /* special_function */
1072 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1073 FALSE, /* partial_inplace */
252b5132 1074 0, /* src_mask */
7619e7c7 1075 0xffff, /* dst_mask */
b34976b6 1076 FALSE), /* pcrel_offset */
252b5132 1077
7619e7c7
AM
1078 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1079 HOWTO (R_PPC_GOT_TLSLD16_HI,
1080 16, /* rightshift */
1081 1, /* size (0 = byte, 1 = short, 2 = long) */
1082 16, /* bitsize */
b34976b6 1083 FALSE, /* pc_relative */
252b5132
RH
1084 0, /* bitpos */
1085 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1086 ppc_elf_unhandled_reloc, /* special_function */
1087 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1088 FALSE, /* partial_inplace */
252b5132 1089 0, /* src_mask */
7619e7c7 1090 0xffff, /* dst_mask */
b34976b6 1091 FALSE), /* pcrel_offset */
252b5132 1092
7619e7c7
AM
1093 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1094 HOWTO (R_PPC_GOT_TLSLD16_HA,
1095 16, /* rightshift */
1096 1, /* size (0 = byte, 1 = short, 2 = long) */
1097 16, /* bitsize */
1098 FALSE, /* pc_relative */
1099 0, /* bitpos */
1100 complain_overflow_dont, /* complain_on_overflow */
1101 ppc_elf_unhandled_reloc, /* special_function */
1102 "R_PPC_GOT_TLSLD16_HA", /* name */
1103 FALSE, /* partial_inplace */
1104 0, /* src_mask */
1105 0xffff, /* dst_mask */
1106 FALSE), /* pcrel_offset */
1107
1108 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1109 the offset to the entry. */
1110 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1111 0, /* rightshift */
1112 1, /* size (0 = byte, 1 = short, 2 = long) */
1113 16, /* bitsize */
b34976b6 1114 FALSE, /* pc_relative */
252b5132
RH
1115 0, /* bitpos */
1116 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1117 ppc_elf_unhandled_reloc, /* special_function */
1118 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1119 FALSE, /* partial_inplace */
252b5132
RH
1120 0, /* src_mask */
1121 0xffff, /* dst_mask */
b34976b6 1122 FALSE), /* pcrel_offset */
252b5132 1123
7619e7c7
AM
1124 /* Like GOT_DTPREL16, but no overflow. */
1125 HOWTO (R_PPC_GOT_DTPREL16_LO,
1126 0, /* rightshift */
1127 1, /* size (0 = byte, 1 = short, 2 = long) */
1128 16, /* bitsize */
1129 FALSE, /* pc_relative */
1130 0, /* bitpos */
1131 complain_overflow_dont, /* complain_on_overflow */
1132 ppc_elf_unhandled_reloc, /* special_function */
1133 "R_PPC_GOT_DTPREL16_LO", /* name */
1134 FALSE, /* partial_inplace */
1135 0, /* src_mask */
1136 0xffff, /* dst_mask */
1137 FALSE), /* pcrel_offset */
252b5132 1138
7619e7c7
AM
1139 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1140 HOWTO (R_PPC_GOT_DTPREL16_HI,
1141 16, /* rightshift */
1142 1, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 ppc_elf_unhandled_reloc, /* special_function */
1148 "R_PPC_GOT_DTPREL16_HI", /* name */
1149 FALSE, /* partial_inplace */
1150 0, /* src_mask */
1151 0xffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
7619e7c7
AM
1154 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1155 HOWTO (R_PPC_GOT_DTPREL16_HA,
1156 16, /* rightshift */
1157 1, /* size (0 = byte, 1 = short, 2 = long) */
1158 16, /* bitsize */
1159 FALSE, /* pc_relative */
1160 0, /* bitpos */
1161 complain_overflow_dont, /* complain_on_overflow */
1162 ppc_elf_unhandled_reloc, /* special_function */
1163 "R_PPC_GOT_DTPREL16_HA", /* name */
1164 FALSE, /* partial_inplace */
1165 0, /* src_mask */
1166 0xffff, /* dst_mask */
1167 FALSE), /* pcrel_offset */
c3668558 1168
7619e7c7
AM
1169 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1170 offset to the entry. */
1171 HOWTO (R_PPC_GOT_TPREL16,
1172 0, /* rightshift */
1173 1, /* size (0 = byte, 1 = short, 2 = long) */
1174 16, /* bitsize */
1175 FALSE, /* pc_relative */
1176 0, /* bitpos */
1177 complain_overflow_signed, /* complain_on_overflow */
1178 ppc_elf_unhandled_reloc, /* special_function */
1179 "R_PPC_GOT_TPREL16", /* name */
1180 FALSE, /* partial_inplace */
1181 0, /* src_mask */
1182 0xffff, /* dst_mask */
1183 FALSE), /* pcrel_offset */
1184
1185 /* Like GOT_TPREL16, but no overflow. */
1186 HOWTO (R_PPC_GOT_TPREL16_LO,
1187 0, /* rightshift */
1188 1, /* size (0 = byte, 1 = short, 2 = long) */
1189 16, /* bitsize */
1190 FALSE, /* pc_relative */
1191 0, /* bitpos */
1192 complain_overflow_dont, /* complain_on_overflow */
1193 ppc_elf_unhandled_reloc, /* special_function */
1194 "R_PPC_GOT_TPREL16_LO", /* name */
1195 FALSE, /* partial_inplace */
1196 0, /* src_mask */
1197 0xffff, /* dst_mask */
1198 FALSE), /* pcrel_offset */
1199
1200 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1201 HOWTO (R_PPC_GOT_TPREL16_HI,
1202 16, /* rightshift */
1203 1, /* size (0 = byte, 1 = short, 2 = long) */
1204 16, /* bitsize */
1205 FALSE, /* pc_relative */
1206 0, /* bitpos */
1207 complain_overflow_dont, /* complain_on_overflow */
1208 ppc_elf_unhandled_reloc, /* special_function */
1209 "R_PPC_GOT_TPREL16_HI", /* name */
1210 FALSE, /* partial_inplace */
1211 0, /* src_mask */
1212 0xffff, /* dst_mask */
1213 FALSE), /* pcrel_offset */
1214
1215 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1216 HOWTO (R_PPC_GOT_TPREL16_HA,
1217 16, /* rightshift */
1218 1, /* size (0 = byte, 1 = short, 2 = long) */
1219 16, /* bitsize */
1220 FALSE, /* pc_relative */
1221 0, /* bitpos */
1222 complain_overflow_dont, /* complain_on_overflow */
1223 ppc_elf_unhandled_reloc, /* special_function */
1224 "R_PPC_GOT_TPREL16_HA", /* name */
1225 FALSE, /* partial_inplace */
1226 0, /* src_mask */
1227 0xffff, /* dst_mask */
1228 FALSE), /* pcrel_offset */
1229
1230 /* The remaining relocs are from the Embedded ELF ABI, and are not
1231 in the SVR4 ELF ABI. */
1232
1233 /* 32 bit value resulting from the addend minus the symbol. */
1234 HOWTO (R_PPC_EMB_NADDR32, /* type */
1235 0, /* rightshift */
1236 2, /* size (0 = byte, 1 = short, 2 = long) */
1237 32, /* bitsize */
1238 FALSE, /* pc_relative */
1239 0, /* bitpos */
86c95733 1240 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1241 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1242 "R_PPC_EMB_NADDR32", /* name */
1243 FALSE, /* partial_inplace */
1244 0, /* src_mask */
1245 0xffffffff, /* dst_mask */
1246 FALSE), /* pcrel_offset */
1247
1248 /* 16 bit value resulting from the addend minus the symbol. */
1249 HOWTO (R_PPC_EMB_NADDR16, /* type */
1250 0, /* rightshift */
1251 1, /* size (0 = byte, 1 = short, 2 = long) */
1252 16, /* bitsize */
1253 FALSE, /* pc_relative */
1254 0, /* bitpos */
86c95733 1255 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1256 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1257 "R_PPC_EMB_NADDR16", /* name */
1258 FALSE, /* partial_inplace */
1259 0, /* src_mask */
1260 0xffff, /* dst_mask */
1261 FALSE), /* pcrel_offset */
1262
1263 /* 16 bit value resulting from the addend minus the symbol. */
1264 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1265 0, /* rightshift */
1266 1, /* size (0 = byte, 1 = short, 2 = long) */
1267 16, /* bitsize */
1268 FALSE, /* pc_relative */
1269 0, /* bitpos */
1270 complain_overflow_dont,/* complain_on_overflow */
3ce51288 1271 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1272 "R_PPC_EMB_ADDR16_LO", /* name */
1273 FALSE, /* partial_inplace */
1274 0, /* src_mask */
1275 0xffff, /* dst_mask */
1276 FALSE), /* pcrel_offset */
1277
1278 /* The high order 16 bits of the addend minus the symbol. */
1279 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1280 16, /* rightshift */
1281 1, /* size (0 = byte, 1 = short, 2 = long) */
1282 16, /* bitsize */
1283 FALSE, /* pc_relative */
1284 0, /* bitpos */
1285 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1286 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1287 "R_PPC_EMB_NADDR16_HI", /* name */
1288 FALSE, /* partial_inplace */
1289 0, /* src_mask */
1290 0xffff, /* dst_mask */
1291 FALSE), /* pcrel_offset */
1292
1293 /* The high order 16 bits of the result of the addend minus the address,
1294 plus 1 if the contents of the low 16 bits, treated as a signed number,
1295 is negative. */
1296 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1297 16, /* rightshift */
1298 1, /* size (0 = byte, 1 = short, 2 = long) */
1299 16, /* bitsize */
1300 FALSE, /* pc_relative */
1301 0, /* bitpos */
1302 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1303 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1304 "R_PPC_EMB_NADDR16_HA", /* name */
1305 FALSE, /* partial_inplace */
1306 0, /* src_mask */
1307 0xffff, /* dst_mask */
1308 FALSE), /* pcrel_offset */
1309
1310 /* 16 bit value resulting from allocating a 4 byte word to hold an
1311 address in the .sdata section, and returning the offset from
1312 _SDA_BASE_ for that relocation. */
1313 HOWTO (R_PPC_EMB_SDAI16, /* type */
1314 0, /* rightshift */
1315 1, /* size (0 = byte, 1 = short, 2 = long) */
1316 16, /* bitsize */
1317 FALSE, /* pc_relative */
1318 0, /* bitpos */
bd6c6e2b 1319 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1320 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1321 "R_PPC_EMB_SDAI16", /* name */
1322 FALSE, /* partial_inplace */
1323 0, /* src_mask */
1324 0xffff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1326
1327 /* 16 bit value resulting from allocating a 4 byte word to hold an
1328 address in the .sdata2 section, and returning the offset from
1329 _SDA2_BASE_ for that relocation. */
1330 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1331 0, /* rightshift */
1332 1, /* size (0 = byte, 1 = short, 2 = long) */
1333 16, /* bitsize */
1334 FALSE, /* pc_relative */
1335 0, /* bitpos */
bd6c6e2b 1336 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1337 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1338 "R_PPC_EMB_SDA2I16", /* name */
1339 FALSE, /* partial_inplace */
1340 0, /* src_mask */
1341 0xffff, /* dst_mask */
1342 FALSE), /* pcrel_offset */
1343
1344 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1345 small data items. */
1346 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1347 0, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1349 16, /* bitsize */
1350 FALSE, /* pc_relative */
1351 0, /* bitpos */
1352 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1353 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1354 "R_PPC_EMB_SDA2REL", /* name */
1355 FALSE, /* partial_inplace */
1356 0, /* src_mask */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1359
1360 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1361 signed offset from the appropriate base, and filling in the register
1362 field with the appropriate register (0, 2, or 13). */
1363 HOWTO (R_PPC_EMB_SDA21, /* type */
1364 0, /* rightshift */
1365 2, /* size (0 = byte, 1 = short, 2 = long) */
1366 16, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1370 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1371 "R_PPC_EMB_SDA21", /* name */
1372 FALSE, /* partial_inplace */
1373 0, /* src_mask */
1374 0xffff, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376
1377 /* Relocation not handled: R_PPC_EMB_MRKREF */
1378 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1379 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1380 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1382 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1383
1384 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1385 in the 16 bit signed offset from the appropriate base, and filling in the
1386 register field with the appropriate register (0, 2, or 13). */
1387 HOWTO (R_PPC_EMB_RELSDA, /* type */
1388 0, /* rightshift */
1389 1, /* size (0 = byte, 1 = short, 2 = long) */
1390 16, /* bitsize */
ddfd6795 1391 FALSE, /* pc_relative */
25dbc73a
AM
1392 0, /* bitpos */
1393 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1394 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1395 "R_PPC_EMB_RELSDA", /* name */
1396 FALSE, /* partial_inplace */
1397 0, /* src_mask */
1398 0xffff, /* dst_mask */
1399 FALSE), /* pcrel_offset */
1400
b9c361e0
JL
1401 /* A relative 8 bit branch. */
1402 HOWTO (R_PPC_VLE_REL8, /* type */
1403 1, /* rightshift */
1404 1, /* size (0 = byte, 1 = short, 2 = long) */
1405 8, /* bitsize */
1406 TRUE, /* pc_relative */
1407 0, /* bitpos */
1408 complain_overflow_signed, /* complain_on_overflow */
1409 bfd_elf_generic_reloc, /* special_function */
1410 "R_PPC_VLE_REL8", /* name */
1411 FALSE, /* partial_inplace */
1412 0, /* src_mask */
1413 0xff, /* dst_mask */
1414 TRUE), /* pcrel_offset */
68ffbac6 1415
b9c361e0
JL
1416 /* A relative 15 bit branch. */
1417 HOWTO (R_PPC_VLE_REL15, /* type */
1418 1, /* rightshift */
1419 2, /* size (0 = byte, 1 = short, 2 = long) */
1420 15, /* bitsize */
1421 TRUE, /* pc_relative */
1422 1, /* bitpos */
1423 complain_overflow_signed, /* complain_on_overflow */
1424 bfd_elf_generic_reloc, /* special_function */
1425 "R_PPC_VLE_REL15", /* name */
1426 FALSE, /* partial_inplace */
1427 0, /* src_mask */
dfdaec14 1428 0xfffe, /* dst_mask */
b9c361e0
JL
1429 TRUE), /* pcrel_offset */
1430
68ffbac6 1431 /* A relative 24 bit branch. */
b9c361e0
JL
1432 HOWTO (R_PPC_VLE_REL24, /* type */
1433 1, /* rightshift */
1434 2, /* size (0 = byte, 1 = short, 2 = long) */
1435 24, /* bitsize */
1436 TRUE, /* pc_relative */
1437 1, /* bitpos */
1438 complain_overflow_signed, /* complain_on_overflow */
1439 bfd_elf_generic_reloc, /* special_function */
1440 "R_PPC_VLE_REL24", /* name */
1441 FALSE, /* partial_inplace */
1442 0, /* src_mask */
1443 0x1fffffe, /* dst_mask */
1444 TRUE), /* pcrel_offset */
1445
1446 /* The 16 LSBS in split16a format. */
1447 HOWTO (R_PPC_VLE_LO16A, /* type */
1448 0, /* rightshift */
1449 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1450 16, /* bitsize */
bdaacd3a 1451 FALSE, /* pc_relative */
b9c361e0 1452 0, /* bitpos */
86c95733 1453 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1454 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1455 "R_PPC_VLE_LO16A", /* name */
1456 FALSE, /* partial_inplace */
1457 0, /* src_mask */
bdaacd3a 1458 0x1f007ff, /* dst_mask */
b9c361e0
JL
1459 FALSE), /* pcrel_offset */
1460
1461 /* The 16 LSBS in split16d format. */
1462 HOWTO (R_PPC_VLE_LO16D, /* type */
1463 0, /* rightshift */
1464 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1465 16, /* bitsize */
b9c361e0
JL
1466 FALSE, /* pc_relative */
1467 0, /* bitpos */
86c95733 1468 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1469 ppc_elf_unhandled_reloc, /* special_function */
1470 "R_PPC_VLE_LO16D", /* name */
b9c361e0
JL
1471 FALSE, /* partial_inplace */
1472 0, /* src_mask */
1473 0x1f07ff, /* dst_mask */
1474 FALSE), /* pcrel_offset */
1475
1476 /* Bits 16-31 split16a format. */
1477 HOWTO (R_PPC_VLE_HI16A, /* type */
86c95733 1478 16, /* rightshift */
b9c361e0 1479 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1480 16, /* bitsize */
b9c361e0
JL
1481 FALSE, /* pc_relative */
1482 0, /* bitpos */
86c95733 1483 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1484 ppc_elf_unhandled_reloc, /* special_function */
1485 "R_PPC_VLE_HI16A", /* name */
b9c361e0
JL
1486 FALSE, /* partial_inplace */
1487 0, /* src_mask */
bdaacd3a 1488 0x1f007ff, /* dst_mask */
b9c361e0
JL
1489 FALSE), /* pcrel_offset */
1490
1491 /* Bits 16-31 split16d format. */
1492 HOWTO (R_PPC_VLE_HI16D, /* type */
86c95733 1493 16, /* rightshift */
b9c361e0 1494 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1495 16, /* bitsize */
b9c361e0
JL
1496 FALSE, /* pc_relative */
1497 0, /* bitpos */
86c95733 1498 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1499 ppc_elf_unhandled_reloc, /* special_function */
1500 "R_PPC_VLE_HI16D", /* name */
b9c361e0
JL
1501 FALSE, /* partial_inplace */
1502 0, /* src_mask */
1503 0x1f07ff, /* dst_mask */
1504 FALSE), /* pcrel_offset */
1505
1506 /* Bits 16-31 (High Adjusted) in split16a format. */
1507 HOWTO (R_PPC_VLE_HA16A, /* type */
86c95733 1508 16, /* rightshift */
b9c361e0 1509 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1510 16, /* bitsize */
b9c361e0
JL
1511 FALSE, /* pc_relative */
1512 0, /* bitpos */
86c95733 1513 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1514 ppc_elf_unhandled_reloc, /* special_function */
1515 "R_PPC_VLE_HA16A", /* name */
b9c361e0
JL
1516 FALSE, /* partial_inplace */
1517 0, /* src_mask */
bdaacd3a 1518 0x1f007ff, /* dst_mask */
b9c361e0
JL
1519 FALSE), /* pcrel_offset */
1520
1521 /* Bits 16-31 (High Adjusted) in split16d format. */
1522 HOWTO (R_PPC_VLE_HA16D, /* type */
86c95733 1523 16, /* rightshift */
b9c361e0 1524 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1525 16, /* bitsize */
b9c361e0
JL
1526 FALSE, /* pc_relative */
1527 0, /* bitpos */
86c95733 1528 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1529 ppc_elf_unhandled_reloc, /* special_function */
1530 "R_PPC_VLE_HA16D", /* name */
b9c361e0
JL
1531 FALSE, /* partial_inplace */
1532 0, /* src_mask */
1533 0x1f07ff, /* dst_mask */
1534 FALSE), /* pcrel_offset */
1535
86c95733
AM
1536 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1537 instructions. If the register base is 0 then the linker changes
1538 the e_add16i to an e_li instruction. */
1539 HOWTO (R_PPC_VLE_SDA21, /* type */
b9c361e0
JL
1540 0, /* rightshift */
1541 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1542 16, /* bitsize */
b9c361e0
JL
1543 FALSE, /* pc_relative */
1544 0, /* bitpos */
86c95733 1545 complain_overflow_signed, /* complain_on_overflow */
3ce51288
AM
1546 ppc_elf_unhandled_reloc, /* special_function */
1547 "R_PPC_VLE_SDA21", /* name */
b9c361e0
JL
1548 FALSE, /* partial_inplace */
1549 0, /* src_mask */
1550 0xffff, /* dst_mask */
1551 FALSE), /* pcrel_offset */
1552
86c95733 1553 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
b9c361e0
JL
1554 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1555 0, /* rightshift */
1556 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1557 16, /* bitsize */
b9c361e0
JL
1558 FALSE, /* pc_relative */
1559 0, /* bitpos */
86c95733 1560 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1561 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1562 "R_PPC_VLE_SDA21_LO", /* name */
1563 FALSE, /* partial_inplace */
1564 0, /* src_mask */
86c95733 1565 0xffff, /* dst_mask */
b9c361e0
JL
1566 FALSE), /* pcrel_offset */
1567
1568 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1569 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1570 0, /* rightshift */
1571 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1572 16, /* bitsize */
b9c361e0
JL
1573 FALSE, /* pc_relative */
1574 0, /* bitpos */
3ce51288
AM
1575 complain_overflow_dont, /* complain_on_overflow */
1576 ppc_elf_unhandled_reloc, /* special_function */
1577 "R_PPC_VLE_SDAREL_LO16A", /* name */
b9c361e0
JL
1578 FALSE, /* partial_inplace */
1579 0, /* src_mask */
bdaacd3a 1580 0x1f007ff, /* dst_mask */
b9c361e0
JL
1581 FALSE), /* pcrel_offset */
1582
1583 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
b9c361e0
JL
1584 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1585 0, /* rightshift */
1586 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1587 16, /* bitsize */
b9c361e0
JL
1588 FALSE, /* pc_relative */
1589 0, /* bitpos */
3ce51288
AM
1590 complain_overflow_dont, /* complain_on_overflow */
1591 ppc_elf_unhandled_reloc, /* special_function */
1592 "R_PPC_VLE_SDAREL_LO16D", /* name */
b9c361e0
JL
1593 FALSE, /* partial_inplace */
1594 0, /* src_mask */
1595 0x1f07ff, /* dst_mask */
1596 FALSE), /* pcrel_offset */
1597
1598 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
3ce51288 1599 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
86c95733 1600 16, /* rightshift */
b9c361e0 1601 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1602 16, /* bitsize */
b9c361e0
JL
1603 FALSE, /* pc_relative */
1604 0, /* bitpos */
3ce51288
AM
1605 complain_overflow_dont, /* complain_on_overflow */
1606 ppc_elf_unhandled_reloc, /* special_function */
1607 "R_PPC_VLE_SDAREL_HI16A", /* name */
b9c361e0
JL
1608 FALSE, /* partial_inplace */
1609 0, /* src_mask */
bdaacd3a 1610 0x1f007ff, /* dst_mask */
b9c361e0
JL
1611 FALSE), /* pcrel_offset */
1612
1613 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
3ce51288 1614 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
86c95733 1615 16, /* rightshift */
b9c361e0 1616 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1617 16, /* bitsize */
b9c361e0
JL
1618 FALSE, /* pc_relative */
1619 0, /* bitpos */
3ce51288
AM
1620 complain_overflow_dont, /* complain_on_overflow */
1621 ppc_elf_unhandled_reloc, /* special_function */
1622 "R_PPC_VLE_SDAREL_HI16D", /* name */
b9c361e0
JL
1623 FALSE, /* partial_inplace */
1624 0, /* src_mask */
1625 0x1f07ff, /* dst_mask */
1626 FALSE), /* pcrel_offset */
1627
1628 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
3ce51288 1629 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
86c95733 1630 16, /* rightshift */
b9c361e0 1631 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1632 16, /* bitsize */
b9c361e0
JL
1633 FALSE, /* pc_relative */
1634 0, /* bitpos */
3ce51288
AM
1635 complain_overflow_dont, /* complain_on_overflow */
1636 ppc_elf_unhandled_reloc, /* special_function */
1637 "R_PPC_VLE_SDAREL_HA16A", /* name */
b9c361e0
JL
1638 FALSE, /* partial_inplace */
1639 0, /* src_mask */
bdaacd3a 1640 0x1f007ff, /* dst_mask */
b9c361e0
JL
1641 FALSE), /* pcrel_offset */
1642
1643 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
3ce51288 1644 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
86c95733 1645 16, /* rightshift */
b9c361e0 1646 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1647 16, /* bitsize */
b9c361e0
JL
1648 FALSE, /* pc_relative */
1649 0, /* bitpos */
3ce51288
AM
1650 complain_overflow_dont, /* complain_on_overflow */
1651 ppc_elf_unhandled_reloc, /* special_function */
1652 "R_PPC_VLE_SDAREL_HA16D", /* name */
b9c361e0
JL
1653 FALSE, /* partial_inplace */
1654 0, /* src_mask */
1655 0x1f07ff, /* dst_mask */
1656 FALSE), /* pcrel_offset */
1657
e054468f
AM
1658 HOWTO (R_PPC_IRELATIVE, /* type */
1659 0, /* rightshift */
1660 2, /* size (0 = byte, 1 = short, 2 = long) */
1661 32, /* bitsize */
1662 FALSE, /* pc_relative */
1663 0, /* bitpos */
86c95733 1664 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1665 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1666 "R_PPC_IRELATIVE", /* name */
1667 FALSE, /* partial_inplace */
1668 0, /* src_mask */
1669 0xffffffff, /* dst_mask */
1670 FALSE), /* pcrel_offset */
1671
d7128ce4
AM
1672 /* A 16 bit relative relocation. */
1673 HOWTO (R_PPC_REL16, /* type */
1674 0, /* rightshift */
1675 1, /* size (0 = byte, 1 = short, 2 = long) */
1676 16, /* bitsize */
1677 TRUE, /* pc_relative */
1678 0, /* bitpos */
86c95733 1679 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1680 bfd_elf_generic_reloc, /* special_function */
1681 "R_PPC_REL16", /* name */
1682 FALSE, /* partial_inplace */
1683 0, /* src_mask */
1684 0xffff, /* dst_mask */
1685 TRUE), /* pcrel_offset */
1686
1687 /* A 16 bit relative relocation without overflow. */
1688 HOWTO (R_PPC_REL16_LO, /* type */
1689 0, /* rightshift */
1690 1, /* size (0 = byte, 1 = short, 2 = long) */
1691 16, /* bitsize */
1692 TRUE, /* pc_relative */
1693 0, /* bitpos */
1694 complain_overflow_dont,/* complain_on_overflow */
1695 bfd_elf_generic_reloc, /* special_function */
1696 "R_PPC_REL16_LO", /* name */
1697 FALSE, /* partial_inplace */
1698 0, /* src_mask */
1699 0xffff, /* dst_mask */
1700 TRUE), /* pcrel_offset */
1701
1702 /* The high order 16 bits of a relative address. */
1703 HOWTO (R_PPC_REL16_HI, /* type */
1704 16, /* rightshift */
1705 1, /* size (0 = byte, 1 = short, 2 = long) */
1706 16, /* bitsize */
1707 TRUE, /* pc_relative */
1708 0, /* bitpos */
1709 complain_overflow_dont, /* complain_on_overflow */
1710 bfd_elf_generic_reloc, /* special_function */
1711 "R_PPC_REL16_HI", /* name */
1712 FALSE, /* partial_inplace */
1713 0, /* src_mask */
1714 0xffff, /* dst_mask */
1715 TRUE), /* pcrel_offset */
1716
1717 /* The high order 16 bits of a relative address, plus 1 if the contents of
1718 the low 16 bits, treated as a signed number, is negative. */
1719 HOWTO (R_PPC_REL16_HA, /* type */
1720 16, /* rightshift */
1721 1, /* size (0 = byte, 1 = short, 2 = long) */
1722 16, /* bitsize */
1723 TRUE, /* pc_relative */
1724 0, /* bitpos */
1725 complain_overflow_dont, /* complain_on_overflow */
1726 ppc_elf_addr16_ha_reloc, /* special_function */
1727 "R_PPC_REL16_HA", /* name */
1728 FALSE, /* partial_inplace */
1729 0, /* src_mask */
1730 0xffff, /* dst_mask */
1731 TRUE), /* pcrel_offset */
1732
a680de9a
PB
1733 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1734 HOWTO (R_PPC_REL16DX_HA, /* type */
1735 16, /* rightshift */
1736 2, /* size (0 = byte, 1 = short, 2 = long) */
1737 16, /* bitsize */
1738 TRUE, /* pc_relative */
1739 0, /* bitpos */
1740 complain_overflow_signed, /* complain_on_overflow */
1741 ppc_elf_addr16_ha_reloc, /* special_function */
1742 "R_PPC_REL16DX_HA", /* name */
1743 FALSE, /* partial_inplace */
1744 0, /* src_mask */
1745 0x1fffc1, /* dst_mask */
1746 TRUE), /* pcrel_offset */
1747
25dbc73a
AM
1748 /* GNU extension to record C++ vtable hierarchy. */
1749 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1750 0, /* rightshift */
1751 0, /* size (0 = byte, 1 = short, 2 = long) */
1752 0, /* bitsize */
1753 FALSE, /* pc_relative */
1754 0, /* bitpos */
1755 complain_overflow_dont, /* complain_on_overflow */
1756 NULL, /* special_function */
1757 "R_PPC_GNU_VTINHERIT", /* name */
1758 FALSE, /* partial_inplace */
1759 0, /* src_mask */
1760 0, /* dst_mask */
1761 FALSE), /* pcrel_offset */
1762
1763 /* GNU extension to record C++ vtable member usage. */
1764 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1765 0, /* rightshift */
1766 0, /* size (0 = byte, 1 = short, 2 = long) */
1767 0, /* bitsize */
1768 FALSE, /* pc_relative */
1769 0, /* bitpos */
1770 complain_overflow_dont, /* complain_on_overflow */
1771 NULL, /* special_function */
1772 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1773 FALSE, /* partial_inplace */
1774 0, /* src_mask */
25dbc73a 1775 0, /* dst_mask */
7619e7c7
AM
1776 FALSE), /* pcrel_offset */
1777
25dbc73a
AM
1778 /* Phony reloc to handle AIX style TOC entries. */
1779 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1780 0, /* rightshift */
1781 1, /* size (0 = byte, 1 = short, 2 = long) */
1782 16, /* bitsize */
1783 FALSE, /* pc_relative */
1784 0, /* bitpos */
25dbc73a 1785 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1786 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1787 "R_PPC_TOC16", /* name */
7619e7c7
AM
1788 FALSE, /* partial_inplace */
1789 0, /* src_mask */
1790 0xffff, /* dst_mask */
1791 FALSE), /* pcrel_offset */
25dbc73a 1792};
70a38d42
SDJ
1793
1794/* External 32-bit PPC structure for PRPSINFO. This structure is
1795 ABI-defined, thus we choose to use char arrays here in order to
1796 avoid dealing with different types in different architectures.
1797
1798 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1799 most non-PPC architectures use `short int'.
1800
1801 This structure will ultimately be written in the corefile's note
1802 section, as the PRPSINFO. */
1803
1804struct elf_external_ppc_linux_prpsinfo32
1805 {
1806 char pr_state; /* Numeric process state. */
1807 char pr_sname; /* Char for pr_state. */
1808 char pr_zomb; /* Zombie. */
1809 char pr_nice; /* Nice val. */
1810 char pr_flag[4]; /* Flags. */
1811 char pr_uid[4];
1812 char pr_gid[4];
1813 char pr_pid[4];
1814 char pr_ppid[4];
1815 char pr_pgrp[4];
1816 char pr_sid[4];
1817 char pr_fname[16]; /* Filename of executable. */
1818 char pr_psargs[80]; /* Initial part of arg list. */
1819 };
1820
aeb70569
AM
1821/* Helper function to copy an elf_internal_linux_prpsinfo in host
1822 endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */
70a38d42 1823
aeb70569
AM
1824static inline void
1825swap_ppc_linux_prpsinfo32_out (bfd *obfd,
1826 const struct elf_internal_linux_prpsinfo *from,
1827 struct elf_external_ppc_linux_prpsinfo32 *to)
1828{
1829 bfd_put_8 (obfd, from->pr_state, &to->pr_state);
1830 bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
1831 bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
1832 bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
1833 bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
1834 bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
1835 bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
1836 bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
1837 bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
1838 bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
1839 bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
1840 strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
1841 strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
1842}
25dbc73a
AM
1843\f
1844/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1845
1846static void
1847ppc_elf_howto_init (void)
1848{
1849 unsigned int i, type;
1850
1851 for (i = 0;
1852 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1853 i++)
1854 {
1855 type = ppc_elf_howto_raw[i].type;
1856 if (type >= (sizeof (ppc_elf_howto_table)
1857 / sizeof (ppc_elf_howto_table[0])))
1858 abort ();
1859 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1860 }
1861}
1862
1863static reloc_howto_type *
1864ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1865 bfd_reloc_code_real_type code)
1866{
1867 enum elf_ppc_reloc_type r;
1868
1869 /* Initialize howto table if not already done. */
1870 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1871 ppc_elf_howto_init ();
1872
1873 switch (code)
1874 {
1875 default:
1876 return NULL;
1877
1878 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1879 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1880 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1881 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1882 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1883 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1884 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1885 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1886 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1887 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1888 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1889 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1890 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1891 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1892 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1893 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1894 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1895 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1896 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1897 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1898 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1899 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1900 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1901 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1902 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1903 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1904 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1905 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1906 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1907 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1908 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1909 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1910 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1911 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1912 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1913 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1914 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1915 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1916 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1917 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1918 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1919 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1920 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1921 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1922 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1923 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1924 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1925 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1926 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1927 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1928 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1929 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1930 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1931 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1932 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1933 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1934 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1935 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1936 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1937 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1938 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1939 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1940 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1941 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1942 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1943 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1944 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1945 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1946 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1947 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1948 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1949 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1950 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1951 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1952 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1953 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1954 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1955 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1956 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1957 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1958 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1959 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1960 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1961 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1962 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1963 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1964 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1965 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1966 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1967 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1968 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1969 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1970 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1971 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1972 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1973 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1974 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1975 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1976 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1977 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1978 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1979 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1980 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1981 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1982 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1983 r = R_PPC_VLE_SDAREL_LO16A;
1984 break;
1985 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1986 r = R_PPC_VLE_SDAREL_LO16D;
1987 break;
1988 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1989 r = R_PPC_VLE_SDAREL_HI16A;
1990 break;
1991 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1992 r = R_PPC_VLE_SDAREL_HI16D;
1993 break;
1994 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1995 r = R_PPC_VLE_SDAREL_HA16A;
1996 break;
1997 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1998 r = R_PPC_VLE_SDAREL_HA16D;
1999 break;
d7128ce4
AM
2000 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
2001 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
2002 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
2003 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
a680de9a 2004 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
2005 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2006 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2007 }
2008
2009 return ppc_elf_howto_table[r];
2010};
2011
157090f7
AM
2012static reloc_howto_type *
2013ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2014 const char *r_name)
2015{
2016 unsigned int i;
2017
2018 for (i = 0;
2019 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2020 i++)
2021 if (ppc_elf_howto_raw[i].name != NULL
2022 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2023 return &ppc_elf_howto_raw[i];
2024
2025 return NULL;
2026}
2027
25dbc73a
AM
2028/* Set the howto pointer for a PowerPC ELF reloc. */
2029
2030static void
2031ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2032 arelent *cache_ptr,
2033 Elf_Internal_Rela *dst)
2034{
cd21f5da
NC
2035 unsigned int r_type;
2036
25dbc73a
AM
2037 /* Initialize howto table if not already done. */
2038 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2039 ppc_elf_howto_init ();
2040
cd21f5da
NC
2041 r_type = ELF32_R_TYPE (dst->r_info);
2042 if (r_type >= R_PPC_max)
2043 {
695344c0 2044 /* xgettext:c-format */
4eca0228
AM
2045 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2046 abfd, r_type);
cd21f5da
NC
2047 bfd_set_error (bfd_error_bad_value);
2048 r_type = R_PPC_NONE;
2049 }
2050 cache_ptr->howto = ppc_elf_howto_table[r_type];
375de94a
AM
2051
2052 /* Just because the above assert didn't trigger doesn't mean that
2053 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2054 if (!cache_ptr->howto)
2055 {
695344c0 2056 /* xgettext:c-format */
4eca0228
AM
2057 _bfd_error_handler (_("%B: invalid relocation type %d"),
2058 abfd, r_type);
375de94a
AM
2059 bfd_set_error (bfd_error_bad_value);
2060
2061 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2062 }
25dbc73a
AM
2063}
2064
d7128ce4 2065/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2066
2067static bfd_reloc_status_type
2068ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2069 arelent *reloc_entry,
2070 asymbol *symbol,
2071 void *data ATTRIBUTE_UNUSED,
2072 asection *input_section,
2073 bfd *output_bfd,
2074 char **error_message ATTRIBUTE_UNUSED)
2075{
a680de9a
PB
2076 enum elf_ppc_reloc_type r_type;
2077 long insn;
2078 bfd_size_type octets;
2079 bfd_vma value;
25dbc73a
AM
2080
2081 if (output_bfd != NULL)
2082 {
2083 reloc_entry->address += input_section->output_offset;
2084 return bfd_reloc_ok;
2085 }
2086
a680de9a
PB
2087 reloc_entry->addend += 0x8000;
2088 r_type = reloc_entry->howto->type;
2089 if (r_type != R_PPC_REL16DX_HA)
2090 return bfd_reloc_continue;
2091
2092 value = 0;
2093 if (!bfd_is_com_section (symbol->section))
2094 value = symbol->value;
2095 value += (reloc_entry->addend
2096 + symbol->section->output_offset
2097 + symbol->section->output_section->vma);
2098 value -= (reloc_entry->address
2099 + input_section->output_offset
2100 + input_section->output_section->vma);
2101 value >>= 16;
2102
2103 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2104 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2105 insn &= ~0x1fffc1;
2106 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2107 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2108 return bfd_reloc_ok;
25dbc73a
AM
2109}
2110
2111static bfd_reloc_status_type
2112ppc_elf_unhandled_reloc (bfd *abfd,
2113 arelent *reloc_entry,
2114 asymbol *symbol,
2115 void *data,
2116 asection *input_section,
2117 bfd *output_bfd,
2118 char **error_message)
2119{
2120 /* If this is a relocatable link (output_bfd test tells us), just
2121 call the generic function. Any adjustment will be done at final
2122 link time. */
2123 if (output_bfd != NULL)
2124 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2125 input_section, output_bfd, error_message);
2126
2127 if (error_message != NULL)
2128 {
2129 static char buf[60];
2130 sprintf (buf, _("generic linker can't handle %s"),
2131 reloc_entry->howto->name);
2132 *error_message = buf;
2133 }
2134 return bfd_reloc_dangerous;
2135}
2136\f
2137/* Sections created by the linker. */
2138
2139typedef struct elf_linker_section
2140{
c9a2f333 2141 /* Pointer to the bfd section. */
25dbc73a 2142 asection *section;
c9a2f333
AM
2143 /* Section name. */
2144 const char *name;
2145 /* Associated bss section name. */
2146 const char *bss_name;
2147 /* Associated symbol name. */
2148 const char *sym_name;
046183de
AM
2149 /* Associated symbol. */
2150 struct elf_link_hash_entry *sym;
25dbc73a
AM
2151} elf_linker_section_t;
2152
2153/* Linked list of allocated pointer entries. This hangs off of the
2154 symbol lists, and provides allows us to return different pointers,
2155 based on different addend's. */
2156
2157typedef struct elf_linker_section_pointers
2158{
2159 /* next allocated pointer for this symbol */
2160 struct elf_linker_section_pointers *next;
2161 /* offset of pointer from beginning of section */
2162 bfd_vma offset;
2163 /* addend used */
2164 bfd_vma addend;
2165 /* which linker section this is */
2166 elf_linker_section_t *lsect;
25dbc73a
AM
2167} elf_linker_section_pointers_t;
2168
2169struct ppc_elf_obj_tdata
2170{
2171 struct elf_obj_tdata elf;
2172
2173 /* A mapping from local symbols to offsets into the various linker
2174 sections added. This is index by the symbol index. */
2175 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2176
2177 /* Flags used to auto-detect plt type. */
2178 unsigned int makes_plt_call : 1;
2179 unsigned int has_rel16 : 1;
25dbc73a
AM
2180};
2181
2182#define ppc_elf_tdata(bfd) \
2183 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2184
25dbc73a
AM
2185#define elf_local_ptr_offsets(bfd) \
2186 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2187
0c8d6e5c
AM
2188#define is_ppc_elf(bfd) \
2189 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2190 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2191
25dbc73a 2192/* Override the generic function because we store some extras. */
7619e7c7 2193
25dbc73a
AM
2194static bfd_boolean
2195ppc_elf_mkobject (bfd *abfd)
2196{
0ffa91dd 2197 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2198 PPC32_ELF_DATA);
25dbc73a 2199}
7619e7c7 2200
14b57c7c
AM
2201/* When defaulting arch/mach, decode apuinfo to find a better match. */
2202
2203bfd_boolean
2204_bfd_elf_ppc_set_arch (bfd *abfd)
2205{
2206 unsigned long mach = 0;
2207 asection *s;
2208 unsigned char *contents;
2209
2210 if (abfd->arch_info->bits_per_word == 32
2211 && bfd_big_endian (abfd))
2212 {
2213
2214 for (s = abfd->sections; s != NULL; s = s->next)
2215 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2216 break;
2217 if (s != NULL)
2218 mach = bfd_mach_ppc_vle;
2219 }
2220
2221 if (mach == 0)
2222 {
2223 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2224 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2225 {
2226 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2227 unsigned int i;
2228
2229 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2230 {
2231 unsigned int val = bfd_get_32 (abfd, contents + i);
2232 switch (val >> 16)
2233 {
2234 case PPC_APUINFO_PMR:
2235 case PPC_APUINFO_RFMCI:
2236 if (mach == 0)
2237 mach = bfd_mach_ppc_titan;
2238 break;
2239
2240 case PPC_APUINFO_ISEL:
2241 case PPC_APUINFO_CACHELCK:
2242 if (mach == bfd_mach_ppc_titan)
2243 mach = bfd_mach_ppc_e500mc;
2244 break;
2245
2246 case PPC_APUINFO_SPE:
2247 case PPC_APUINFO_EFS:
2248 case PPC_APUINFO_BRLOCK:
2249 if (mach != bfd_mach_ppc_vle)
2250 mach = bfd_mach_ppc_e500;
8941017b 2251 break;
14b57c7c
AM
2252
2253 case PPC_APUINFO_VLE:
2254 mach = bfd_mach_ppc_vle;
2255 break;
2256
2257 default:
2258 mach = -1ul;
2259 }
2260 }
2261 free (contents);
2262 }
2263 }
2264
2265 if (mach != 0 && mach != -1ul)
2266 {
2267 const bfd_arch_info_type *arch;
2268
2269 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2270 if (arch->mach == mach)
2271 {
2272 abfd->arch_info = arch;
2273 break;
2274 }
2275 }
2276 return TRUE;
2277}
2278
25dbc73a 2279/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2280 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2281
25dbc73a
AM
2282static bfd_boolean
2283ppc_elf_object_p (bfd *abfd)
2284{
14b57c7c
AM
2285 if (!abfd->arch_info->the_default)
2286 return TRUE;
2287
2288 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2289 {
2290 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2291
25dbc73a
AM
2292 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2293 {
2294 /* Relies on arch after 64 bit default being 32 bit default. */
2295 abfd->arch_info = abfd->arch_info->next;
2296 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2297 }
2298 }
14b57c7c 2299 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2300}
7619e7c7 2301
25dbc73a 2302/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2303
25dbc73a
AM
2304static bfd_boolean
2305ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2306{
2307 BFD_ASSERT (!elf_flags_init (abfd)
2308 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2309
25dbc73a
AM
2310 elf_elfheader (abfd)->e_flags = flags;
2311 elf_flags_init (abfd) = TRUE;
2312 return TRUE;
2313}
2314
25dbc73a 2315/* Support for core dump NOTE sections. */
deaaf2f3 2316
b34976b6 2317static bfd_boolean
25dbc73a 2318ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2319{
25dbc73a
AM
2320 int offset;
2321 unsigned int size;
252b5132 2322
25dbc73a
AM
2323 switch (note->descsz)
2324 {
2325 default:
2326 return FALSE;
252b5132 2327
25dbc73a
AM
2328 case 268: /* Linux/PPC. */
2329 /* pr_cursig */
228e534f 2330 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2331
25dbc73a 2332 /* pr_pid */
228e534f 2333 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2334
25dbc73a
AM
2335 /* pr_reg */
2336 offset = 72;
2337 size = 192;
deaaf2f3 2338
25dbc73a
AM
2339 break;
2340 }
deaaf2f3 2341
25dbc73a
AM
2342 /* Make a ".reg/999" section. */
2343 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2344 size, note->descpos + offset);
2345}
252b5132 2346
25dbc73a
AM
2347static bfd_boolean
2348ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2349{
2350 switch (note->descsz)
deaaf2f3 2351 {
25dbc73a
AM
2352 default:
2353 return FALSE;
deaaf2f3 2354
25dbc73a 2355 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2356 elf_tdata (abfd)->core->pid
bc989cdc 2357 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2358 elf_tdata (abfd)->core->program
25dbc73a 2359 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2360 elf_tdata (abfd)->core->command
25dbc73a
AM
2361 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2362 }
9abc968f 2363
25dbc73a
AM
2364 /* Note that for some reason, a spurious space is tacked
2365 onto the end of the args in some (at least one anyway)
2366 implementations, so strip it off if it exists. */
70bccea4 2367
25dbc73a 2368 {
228e534f 2369 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2370 int n = strlen (command);
70bccea4 2371
25dbc73a
AM
2372 if (0 < n && command[n - 1] == ' ')
2373 command[n - 1] = '\0';
2374 }
deaaf2f3 2375
25dbc73a
AM
2376 return TRUE;
2377}
deaaf2f3 2378
70a38d42 2379char *
aeb70569
AM
2380elfcore_write_ppc_linux_prpsinfo32
2381 (bfd *abfd,
2382 char *buf,
2383 int *bufsiz,
2384 const struct elf_internal_linux_prpsinfo *prpsinfo)
70a38d42
SDJ
2385{
2386 struct elf_external_ppc_linux_prpsinfo32 data;
2387
aeb70569 2388 swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data);
70a38d42
SDJ
2389 return elfcore_write_note (abfd, buf, bufsiz,
2390 "CORE", NT_PRPSINFO, &data, sizeof (data));
2391}
2392
183e98be
AM
2393static char *
2394ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2395{
2396 switch (note_type)
2397 {
2398 default:
2399 return NULL;
2400
2401 case NT_PRPSINFO:
2402 {
2403 char data[128];
2404 va_list ap;
2405
2406 va_start (ap, note_type);
75cd47ed 2407 memset (data, 0, sizeof (data));
183e98be
AM
2408 strncpy (data + 32, va_arg (ap, const char *), 16);
2409 strncpy (data + 48, va_arg (ap, const char *), 80);
2410 va_end (ap);
2411 return elfcore_write_note (abfd, buf, bufsiz,
2412 "CORE", note_type, data, sizeof (data));
2413 }
2414
2415 case NT_PRSTATUS:
2416 {
2417 char data[268];
2418 va_list ap;
2419 long pid;
2420 int cursig;
2421 const void *greg;
2422
2423 va_start (ap, note_type);
2424 memset (data, 0, 72);
2425 pid = va_arg (ap, long);
2426 bfd_put_32 (abfd, pid, data + 24);
2427 cursig = va_arg (ap, int);
2428 bfd_put_16 (abfd, cursig, data + 12);
2429 greg = va_arg (ap, const void *);
2430 memcpy (data + 72, greg, 192);
2431 memset (data + 264, 0, 4);
2432 va_end (ap);
2433 return elfcore_write_note (abfd, buf, bufsiz,
2434 "CORE", note_type, data, sizeof (data));
2435 }
2436 }
2437}
2438
b9c361e0 2439static flagword
68ffbac6 2440ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2441{
2442
2443 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2444 return SHF_PPC_VLE;
2445
2446 return 0;
2447}
2448
25dbc73a
AM
2449/* Return address for Ith PLT stub in section PLT, for relocation REL
2450 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2451
25dbc73a
AM
2452static bfd_vma
2453ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2454 const asection *plt ATTRIBUTE_UNUSED,
2455 const arelent *rel)
2456{
2457 return rel->address;
2458}
deaaf2f3 2459
25dbc73a 2460/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2461 is called when bfd_section_from_shdr finds a section with an unknown
2462 type. */
deaaf2f3 2463
25dbc73a 2464static bfd_boolean
6dc132d9
L
2465ppc_elf_section_from_shdr (bfd *abfd,
2466 Elf_Internal_Shdr *hdr,
2467 const char *name,
2468 int shindex)
25dbc73a
AM
2469{
2470 asection *newsect;
2471 flagword flags;
d1c6de6f 2472
6dc132d9 2473 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2474 return FALSE;
deaaf2f3 2475
25dbc73a
AM
2476 newsect = hdr->bfd_section;
2477 flags = bfd_get_section_flags (abfd, newsect);
2478 if (hdr->sh_flags & SHF_EXCLUDE)
2479 flags |= SEC_EXCLUDE;
9abc968f 2480
25dbc73a
AM
2481 if (hdr->sh_type == SHT_ORDERED)
2482 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2483
25dbc73a
AM
2484 bfd_set_section_flags (abfd, newsect, flags);
2485 return TRUE;
2486}
2487
2488/* Set up any other section flags and such that may be necessary. */
2489
2490static bfd_boolean
2491ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2492 Elf_Internal_Shdr *shdr,
2493 asection *asect)
2494{
25dbc73a
AM
2495 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2496 shdr->sh_type = SHT_ORDERED;
2497
2498 return TRUE;
2499}
2500
2501/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2502 need to bump up the number of section headers. */
2503
2504static int
a6b96beb
AM
2505ppc_elf_additional_program_headers (bfd *abfd,
2506 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2507{
2508 asection *s;
2509 int ret = 0;
d1c6de6f 2510
25dbc73a
AM
2511 s = bfd_get_section_by_name (abfd, ".sbss2");
2512 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2513 ++ret;
d1c6de6f 2514
25dbc73a
AM
2515 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2516 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2517 ++ret;
deaaf2f3 2518
25dbc73a
AM
2519 return ret;
2520}
deaaf2f3 2521
68ffbac6 2522/* Modify the segment map for VLE executables. */
b9c361e0
JL
2523
2524bfd_boolean
2525ppc_elf_modify_segment_map (bfd *abfd,
2526 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2527{
f7d69005 2528 struct elf_segment_map *m;
b9c361e0
JL
2529
2530 /* At this point in the link, output sections have already been sorted by
2531 LMA and assigned to segments. All that is left to do is to ensure
2532 there is no mixing of VLE & non-VLE sections in a text segment.
2533 If we find that case, we split the segment.
2534 We maintain the original output section order. */
2535
12bd6957 2536 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2537 {
f7d69005
AM
2538 struct elf_segment_map *n;
2539 bfd_size_type amt;
2540 unsigned int j, k;
2541 unsigned int p_flags;
2542
2543 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2544 continue;
2545
f7d69005 2546 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2547 {
f7d69005
AM
2548 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2549 p_flags |= PF_W;
2550 if ((m->sections[j]->flags & SEC_CODE) != 0)
2551 {
2552 p_flags |= PF_X;
2553 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2554 p_flags |= PF_PPC_VLE;
2555 break;
2556 }
2557 }
2558 if (j != m->count)
2559 while (++j != m->count)
2560 {
2561 unsigned int p_flags1 = PF_R;
94caa966 2562
f7d69005
AM
2563 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2564 p_flags1 |= PF_W;
2565 if ((m->sections[j]->flags & SEC_CODE) != 0)
2566 {
2567 p_flags1 |= PF_X;
2568 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2569 p_flags1 |= PF_PPC_VLE;
2570 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2571 break;
2572 }
2573 p_flags |= p_flags1;
2574 }
2575 /* If we're splitting a segment which originally contained rw
2576 sections then those sections might now only be in one of the
2577 two parts. So always set p_flags if splitting, even if we
2578 are being called for objcopy with p_flags_valid set. */
2579 if (j != m->count || !m->p_flags_valid)
2580 {
2581 m->p_flags_valid = 1;
2582 m->p_flags = p_flags;
2583 }
2584 if (j == m->count)
b9c361e0
JL
2585 continue;
2586
f7d69005 2587 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2588 the remainder are put in a new segment.
2589 The scan resumes with the new segment. */
2590
b9c361e0
JL
2591 amt = sizeof (struct elf_segment_map);
2592 amt += (m->count - j - 1) * sizeof (asection *);
2593 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2594 if (n == NULL)
2595 return FALSE;
2596
2597 n->p_type = PT_LOAD;
b9c361e0
JL
2598 n->count = m->count - j;
2599 for (k = 0; k < n->count; ++k)
f7d69005
AM
2600 n->sections[k] = m->sections[j + k];
2601 m->count = j;
2602 m->p_size_valid = 0;
b9c361e0
JL
2603 n->next = m->next;
2604 m->next = n;
b9c361e0
JL
2605 }
2606
2607 return TRUE;
2608}
2609
25dbc73a
AM
2610/* Add extra PPC sections -- Note, for now, make .sbss2 and
2611 .PPC.EMB.sbss0 a normal section, and not a bss section so
2612 that the linker doesn't crater when trying to make more than
2613 2 sections. */
e656e369 2614
b35d266b 2615static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2616{
14b57c7c
AM
2617 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2618 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2619 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2620 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2621 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2622 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2623 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2624 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2625 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2626 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2627};
2628
551b43fd
AM
2629/* This is what we want for new plt/got. */
2630static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2631 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2632
2633static const struct bfd_elf_special_section *
2634ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 2635{
b35d266b 2636 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2637
2638 /* See if this is one of the special sections. */
2639 if (sec->name == NULL)
2640 return NULL;
2641
2642 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2643 sec->use_rela_p);
2644 if (ssect != NULL)
2645 {
2646 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2647 ssect = &ppc_alt_plt;
2648 return ssect;
2649 }
2650
2651 return _bfd_elf_get_sec_type_attr (abfd, sec);
2652}
25dbc73a
AM
2653\f
2654/* Very simple linked list structure for recording apuinfo values. */
2655typedef struct apuinfo_list
2656{
2657 struct apuinfo_list *next;
2658 unsigned long value;
2659}
2660apuinfo_list;
e656e369 2661
25dbc73a 2662static apuinfo_list *head;
f2faa800 2663static bfd_boolean apuinfo_set;
deaaf2f3 2664
25dbc73a
AM
2665static void
2666apuinfo_list_init (void)
2667{
2668 head = NULL;
f2faa800 2669 apuinfo_set = FALSE;
25dbc73a 2670}
9abc968f 2671
25dbc73a
AM
2672static void
2673apuinfo_list_add (unsigned long value)
2674{
2675 apuinfo_list *entry = head;
deaaf2f3 2676
25dbc73a
AM
2677 while (entry != NULL)
2678 {
2679 if (entry->value == value)
2680 return;
2681 entry = entry->next;
2682 }
b4a38de6 2683
25dbc73a
AM
2684 entry = bfd_malloc (sizeof (* entry));
2685 if (entry == NULL)
2686 return;
e656e369 2687
25dbc73a
AM
2688 entry->value = value;
2689 entry->next = head;
2690 head = entry;
2691}
9abc968f 2692
25dbc73a
AM
2693static unsigned
2694apuinfo_list_length (void)
2695{
2696 apuinfo_list *entry;
2697 unsigned long count;
9abc968f 2698
25dbc73a
AM
2699 for (entry = head, count = 0;
2700 entry;
2701 entry = entry->next)
2702 ++ count;
e656e369 2703
25dbc73a
AM
2704 return count;
2705}
eea6121a 2706
25dbc73a
AM
2707static inline unsigned long
2708apuinfo_list_element (unsigned long number)
2709{
2710 apuinfo_list * entry;
e656e369 2711
25dbc73a
AM
2712 for (entry = head;
2713 entry && number --;
2714 entry = entry->next)
2715 ;
252b5132 2716
25dbc73a
AM
2717 return entry ? entry->value : 0;
2718}
2719
2720static void
2721apuinfo_list_finish (void)
2722{
2723 apuinfo_list *entry;
2724
2725 for (entry = head; entry;)
252b5132 2726 {
25dbc73a
AM
2727 apuinfo_list *next = entry->next;
2728 free (entry);
2729 entry = next;
2730 }
9abc968f 2731
25dbc73a
AM
2732 head = NULL;
2733}
9abc968f 2734
25dbc73a
AM
2735/* Scan the input BFDs and create a linked list of
2736 the APUinfo values that will need to be emitted. */
9abc968f 2737
25dbc73a
AM
2738static void
2739ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2740{
2741 bfd *ibfd;
2742 asection *asec;
deddc40b
NS
2743 char *buffer = NULL;
2744 bfd_size_type largest_input_size = 0;
25dbc73a 2745 unsigned i;
25dbc73a
AM
2746 unsigned long length;
2747 const char *error_message = NULL;
9abc968f 2748
25dbc73a
AM
2749 if (link_info == NULL)
2750 return;
9abc968f 2751
25dbc73a 2752 apuinfo_list_init ();
252b5132 2753
25dbc73a 2754 /* Read in the input sections contents. */
c72f2fb2 2755 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2756 {
25dbc73a 2757 unsigned long datum;
252b5132 2758
25dbc73a
AM
2759 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2760 if (asec == NULL)
2761 continue;
252b5132 2762
695344c0 2763 /* xgettext:c-format */
deddc40b 2764 error_message = _("corrupt %s section in %B");
25dbc73a 2765 length = asec->size;
deddc40b
NS
2766 if (length < 20)
2767 goto fail;
2768
f2faa800 2769 apuinfo_set = TRUE;
deddc40b 2770 if (largest_input_size < asec->size)
25dbc73a 2771 {
deddc40b
NS
2772 if (buffer)
2773 free (buffer);
2774 largest_input_size = asec->size;
2775 buffer = bfd_malloc (largest_input_size);
2776 if (!buffer)
2777 return;
25dbc73a 2778 }
5b914448 2779
25dbc73a 2780 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2781 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2782 {
695344c0 2783 /* xgettext:c-format */
25dbc73a
AM
2784 error_message = _("unable to read in %s section from %B");
2785 goto fail;
2786 }
252b5132 2787
25dbc73a
AM
2788 /* Verify the contents of the header. Note - we have to
2789 extract the values this way in order to allow for a
2790 host whose endian-ness is different from the target. */
deddc40b 2791 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2792 if (datum != sizeof APUINFO_LABEL)
2793 goto fail;
252b5132 2794
deddc40b 2795 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2796 if (datum != 0x2)
2797 goto fail;
252b5132 2798
deddc40b 2799 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2800 goto fail;
252b5132 2801
25dbc73a 2802 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2803 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2804 if (datum + 20 != length)
2805 goto fail;
2806
25dbc73a
AM
2807 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2808 for (i = 0; i < datum; i += 4)
deddc40b 2809 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2810 }
2811
25dbc73a 2812 error_message = NULL;
252b5132 2813
f2faa800 2814 if (apuinfo_set)
deddc40b 2815 {
f2faa800
NS
2816 /* Compute the size of the output section. */
2817 unsigned num_entries = apuinfo_list_length ();
5b914448 2818
deddc40b
NS
2819 /* Set the output section size, if it exists. */
2820 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2821
deddc40b
NS
2822 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2823 {
2824 ibfd = abfd;
695344c0 2825 /* xgettext:c-format */
deddc40b
NS
2826 error_message = _("warning: unable to set size of %s section in %B");
2827 }
2828 }
25dbc73a
AM
2829
2830 fail:
deddc40b
NS
2831 if (buffer)
2832 free (buffer);
25dbc73a
AM
2833
2834 if (error_message)
4eca0228 2835 _bfd_error_handler (error_message, ibfd, APUINFO_SECTION_NAME);
25dbc73a 2836}
252b5132 2837
25dbc73a
AM
2838/* Prevent the output section from accumulating the input sections'
2839 contents. We have already stored this in our linked list structure. */
252b5132 2840
25dbc73a
AM
2841static bfd_boolean
2842ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2843 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2844 asection *asec,
2845 bfd_byte *contents ATTRIBUTE_UNUSED)
2846{
f2faa800 2847 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2848}
2849
25dbc73a
AM
2850/* Finally we can generate the output section. */
2851
2852static void
2853ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2854{
25dbc73a
AM
2855 bfd_byte *buffer;
2856 asection *asec;
2857 unsigned i;
2858 unsigned num_entries;
2859 bfd_size_type length;
7619e7c7 2860
25dbc73a
AM
2861 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2862 if (asec == NULL)
2863 return;
2864
f2faa800 2865 if (!apuinfo_set)
25dbc73a
AM
2866 return;
2867
2868 length = asec->size;
2869 if (length < 20)
2870 return;
2871
2872 buffer = bfd_malloc (length);
2873 if (buffer == NULL)
7619e7c7 2874 {
4eca0228 2875 _bfd_error_handler
25dbc73a
AM
2876 (_("failed to allocate space for new APUinfo section."));
2877 return;
7619e7c7 2878 }
7619e7c7 2879
25dbc73a
AM
2880 /* Create the apuinfo header. */
2881 num_entries = apuinfo_list_length ();
2882 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2883 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2884 bfd_put_32 (abfd, 0x2, buffer + 8);
2885 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2886
25dbc73a
AM
2887 length = 20;
2888 for (i = 0; i < num_entries; i++)
feee612b 2889 {
25dbc73a
AM
2890 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2891 length += 4;
feee612b 2892 }
feee612b 2893
25dbc73a 2894 if (length != asec->size)
4eca0228 2895 _bfd_error_handler (_("failed to compute new APUinfo section."));
252b5132 2896
25dbc73a 2897 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
4eca0228 2898 _bfd_error_handler (_("failed to install new APUinfo section."));
252b5132 2899
25dbc73a
AM
2900 free (buffer);
2901
2902 apuinfo_list_finish ();
252b5132 2903}
25dbc73a 2904\f
7382d32a 2905static bfd_boolean
c6dd29ce 2906is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2907{
c6dd29ce 2908 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2909
c6dd29ce 2910 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2911 return FALSE;
2912
c6dd29ce
AM
2913 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2914 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2915 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2916 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2917}
2918
468392fb
AM
2919static bfd_boolean
2920section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2921{
2922 bfd_vma vma = *(bfd_vma *) ptr;
2923 return ((section->flags & SEC_ALLOC) != 0
2924 && section->vma <= vma
2925 && vma < section->vma + section->size);
2926}
2927
2928static long
2929ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2930 long dynsymcount, asymbol **dynsyms,
2931 asymbol **ret)
2932{
2933 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2934 asection *plt, *relplt, *dynamic, *glink;
2935 bfd_vma glink_vma = 0;
2936 bfd_vma resolv_vma = 0;
2937 bfd_vma stub_vma;
2938 asymbol *s;
2939 arelent *p;
2940 long count, i;
2941 size_t size;
2942 char *names;
2943 bfd_byte buf[4];
2944
2945 *ret = NULL;
2946
2947 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2948 return 0;
2949
2950 if (dynsymcount <= 0)
2951 return 0;
2952
2953 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2954 if (relplt == NULL)
2955 return 0;
2956
2957 plt = bfd_get_section_by_name (abfd, ".plt");
2958 if (plt == NULL)
2959 return 0;
2960
2961 /* Call common code to handle old-style executable PLTs. */
2962 if (elf_section_flags (plt) & SHF_EXECINSTR)
2963 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2964 dynsymcount, dynsyms, ret);
2965
2966 /* If this object was prelinked, the prelinker stored the address
2967 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2968 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2969 if (dynamic != NULL)
2970 {
2971 bfd_byte *dynbuf, *extdyn, *extdynend;
2972 size_t extdynsize;
2973 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2974
2975 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2976 return -1;
2977
2978 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2979 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2980
2981 extdyn = dynbuf;
2982 extdynend = extdyn + dynamic->size;
2983 for (; extdyn < extdynend; extdyn += extdynsize)
2984 {
2985 Elf_Internal_Dyn dyn;
2986 (*swap_dyn_in) (abfd, extdyn, &dyn);
2987
2988 if (dyn.d_tag == DT_NULL)
2989 break;
2990
2991 if (dyn.d_tag == DT_PPC_GOT)
2992 {
2993 unsigned int g_o_t = dyn.d_un.d_val;
2994 asection *got = bfd_get_section_by_name (abfd, ".got");
2995 if (got != NULL
2996 && bfd_get_section_contents (abfd, got, buf,
2997 g_o_t - got->vma + 4, 4))
2998 glink_vma = bfd_get_32 (abfd, buf);
2999 break;
3000 }
3001 }
3002 free (dynbuf);
3003 }
3004
3005 /* Otherwise we read the first plt entry. */
3006 if (glink_vma == 0)
3007 {
3008 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
3009 glink_vma = bfd_get_32 (abfd, buf);
3010 }
3011
3012 if (glink_vma == 0)
3013 return 0;
3014
3015 /* The .glink section usually does not survive the final
3016 link; search for the section (usually .text) where the
3017 glink stubs now reside. */
3018 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
3019 if (glink == NULL)
3020 return 0;
3021
3022 /* Determine glink PLT resolver by reading the relative branch
3023 from the first glink stub. */
3024 if (bfd_get_section_contents (abfd, glink, buf,
3025 glink_vma - glink->vma, 4))
3026 {
3027 unsigned int insn = bfd_get_32 (abfd, buf);
3028
3029 /* The first glink stub may either branch to the resolver ... */
3030 insn ^= B;
3031 if ((insn & ~0x3fffffc) == 0)
3032 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3033
3034 /* ... or fall through a bunch of NOPs. */
3035 else if ((insn ^ B ^ NOP) == 0)
3036 for (i = 4;
3037 bfd_get_section_contents (abfd, glink, buf,
3038 glink_vma - glink->vma + i, 4);
3039 i += 4)
3040 if (bfd_get_32 (abfd, buf) != NOP)
3041 {
3042 resolv_vma = glink_vma + i;
3043 break;
3044 }
3045 }
3046
7382d32a 3047 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3048 /* If the stubs are those for -shared/-pie then we might have
3049 multiple stubs for each plt entry. If that is the case then
3050 there is no way to associate stubs with their plt entries short
3051 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
3052 if (!is_nonpic_glink_stub (abfd, glink,
3053 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
3054 return 0;
3055
468392fb
AM
3056 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3057 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3058 return -1;
3059
468392fb
AM
3060 size = count * sizeof (asymbol);
3061 p = relplt->relocation;
3062 for (i = 0; i < count; i++, p++)
e054468f
AM
3063 {
3064 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3065 if (p->addend != 0)
3066 size += sizeof ("+0x") - 1 + 8;
3067 }
468392fb
AM
3068
3069 size += sizeof (asymbol) + sizeof ("__glink");
3070
3071 if (resolv_vma)
3072 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3073
3074 s = *ret = bfd_malloc (size);
3075 if (s == NULL)
3076 return -1;
3077
1079403c 3078 stub_vma = glink_vma;
468392fb 3079 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3080 p = relplt->relocation + count - 1;
3081 for (i = 0; i < count; i++)
468392fb
AM
3082 {
3083 size_t len;
3084
3085 *s = **p->sym_ptr_ptr;
3086 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3087 we are defining a symbol, ensure one of them is set. */
3088 if ((s->flags & BSF_LOCAL) == 0)
3089 s->flags |= BSF_GLOBAL;
6ba2a415 3090 s->flags |= BSF_SYNTHETIC;
468392fb 3091 s->section = glink;
1079403c
AM
3092 stub_vma -= 16;
3093 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3094 stub_vma -= 32;
468392fb
AM
3095 s->value = stub_vma - glink->vma;
3096 s->name = names;
3097 s->udata.p = NULL;
3098 len = strlen ((*p->sym_ptr_ptr)->name);
3099 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3100 names += len;
e054468f
AM
3101 if (p->addend != 0)
3102 {
3103 memcpy (names, "+0x", sizeof ("+0x") - 1);
3104 names += sizeof ("+0x") - 1;
3105 bfd_sprintf_vma (abfd, names, p->addend);
3106 names += strlen (names);
3107 }
468392fb
AM
3108 memcpy (names, "@plt", sizeof ("@plt"));
3109 names += sizeof ("@plt");
3110 ++s;
1079403c 3111 --p;
468392fb
AM
3112 }
3113
3114 /* Add a symbol at the start of the glink branch table. */
86a4952b 3115 memset (s, 0, sizeof *s);
468392fb 3116 s->the_bfd = abfd;
6ba2a415 3117 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3118 s->section = glink;
3119 s->value = glink_vma - glink->vma;
3120 s->name = names;
3121 memcpy (names, "__glink", sizeof ("__glink"));
3122 names += sizeof ("__glink");
3123 s++;
3124 count++;
3125
3126 if (resolv_vma)
3127 {
3128 /* Add a symbol for the glink PLT resolver. */
86a4952b 3129 memset (s, 0, sizeof *s);
468392fb 3130 s->the_bfd = abfd;
6ba2a415 3131 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3132 s->section = glink;
3133 s->value = resolv_vma - glink->vma;
3134 s->name = names;
3135 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3136 names += sizeof ("__glink_PLTresolve");
3137 s++;
3138 count++;
3139 }
3140
3141 return count;
3142}
3143\f
25dbc73a
AM
3144/* The following functions are specific to the ELF linker, while
3145 functions above are used generally. They appear in this file more
3146 or less in the order in which they are called. eg.
3147 ppc_elf_check_relocs is called early in the link process,
3148 ppc_elf_finish_dynamic_sections is one of the last functions
3149 called. */
252b5132 3150
a6aa5195 3151/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3152 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3153struct plt_entry
3154{
3155 struct plt_entry *next;
3156
3157 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3158 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3159 GOT pointer reg. It will always be at least 32768. (Current
3160 gcc always uses an offset of 32768, but ld -r will pack .got2
3161 sections together resulting in larger offsets). */
a6aa5195
AM
3162 bfd_vma addend;
3163
3164 /* The .got2 section. */
3165 asection *sec;
3166
3167 /* PLT refcount or offset. */
3168 union
3169 {
3170 bfd_signed_vma refcount;
3171 bfd_vma offset;
3172 } plt;
3173
3174 /* .glink stub offset. */
3175 bfd_vma glink_offset;
3176};
3177
1d483afe 3178/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
3179 selects those that must be copied when linking a shared library,
3180 even when the symbol is local. */
252b5132 3181
1d483afe
AM
3182static int
3183must_be_dyn_reloc (struct bfd_link_info *info,
3184 enum elf_ppc_reloc_type r_type)
3185{
3186 switch (r_type)
3187 {
3188 default:
3189 return 1;
3190
3191 case R_PPC_REL24:
3192 case R_PPC_REL14:
3193 case R_PPC_REL14_BRTAKEN:
3194 case R_PPC_REL14_BRNTAKEN:
3195 case R_PPC_REL32:
3196 return 0;
3197
3198 case R_PPC_TPREL32:
3199 case R_PPC_TPREL16:
3200 case R_PPC_TPREL16_LO:
3201 case R_PPC_TPREL16_HI:
3202 case R_PPC_TPREL16_HA:
0e1862bb 3203 return !bfd_link_executable (info);
1d483afe
AM
3204 }
3205}
252b5132 3206
25dbc73a
AM
3207/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3208 copying dynamic variables from a shared lib into an app's dynbss
3209 section, and instead use a dynamic relocation to point into the
3210 shared lib. */
3211#define ELIMINATE_COPY_RELOCS 1
252b5132 3212
f95f8542
AM
3213/* Used to track dynamic relocations for local symbols. */
3214struct ppc_dyn_relocs
3215{
3216 struct ppc_dyn_relocs *next;
3217
3218 /* The input section of the reloc. */
3219 asection *sec;
3220
3221 /* Total number of relocs copied for the input section. */
3222 unsigned int count : 31;
3223
3224 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3225 unsigned int ifunc : 1;
3226};
3227
25dbc73a 3228/* PPC ELF linker hash entry. */
252b5132 3229
25dbc73a
AM
3230struct ppc_elf_link_hash_entry
3231{
3232 struct elf_link_hash_entry elf;
252b5132 3233
25dbc73a
AM
3234 /* If this symbol is used in the linker created sections, the processor
3235 specific backend uses this field to map the field into the offset
3236 from the beginning of the section. */
3237 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3238
25dbc73a 3239 /* Track dynamic relocs copied for this symbol. */
6061a67d 3240 struct elf_dyn_relocs *dyn_relocs;
252b5132 3241
25dbc73a
AM
3242 /* Contexts in which symbol is used in the GOT (or TOC).
3243 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3244 corresponding relocs are encountered during check_relocs.
3245 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3246 indicate the corresponding GOT entry type is not needed. */
3247#define TLS_GD 1 /* GD reloc. */
3248#define TLS_LD 2 /* LD reloc. */
3249#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3250#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3251#define TLS_TLS 16 /* Any TLS reloc. */
3252#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3253#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3254 char tls_mask;
4dc4a9a5
DJ
3255
3256 /* Nonzero if we have seen a small data relocation referring to this
3257 symbol. */
d3e454b9
AM
3258 unsigned char has_sda_refs : 1;
3259
3260 /* Flag use of given relocations. */
3261 unsigned char has_addr16_ha : 1;
3262 unsigned char has_addr16_lo : 1;
25dbc73a 3263};
252b5132 3264
25dbc73a
AM
3265#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3266
3267/* PPC ELF linker hash table. */
3268
3269struct ppc_elf_link_hash_table
3270{
3271 struct elf_link_hash_table elf;
3272
5446cbdf
AM
3273 /* Various options passed from the linker. */
3274 struct ppc_elf_params *params;
3275
25dbc73a
AM
3276 /* Short-cuts to get to dynamic linker sections. */
3277 asection *got;
3278 asection *relgot;
d7128ce4 3279 asection *glink;
25dbc73a
AM
3280 asection *plt;
3281 asection *relplt;
e054468f
AM
3282 asection *iplt;
3283 asection *reliplt;
25dbc73a
AM
3284 asection *dynbss;
3285 asection *relbss;
3286 asection *dynsbss;
3287 asection *relsbss;
c9a2f333 3288 elf_linker_section_t sdata[2];
25dbc73a 3289 asection *sbss;
6177242a 3290 asection *glink_eh_frame;
25dbc73a 3291
016687f8
AM
3292 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3293 asection *srelplt2;
3294
3295 /* The .got.plt section (VxWorks only)*/
3296 asection *sgotplt;
3297
1d483afe 3298 /* Shortcut to __tls_get_addr. */
25dbc73a 3299 struct elf_link_hash_entry *tls_get_addr;
252b5132 3300
016687f8
AM
3301 /* The bfd that forced an old-style PLT. */
3302 bfd *old_bfd;
5b914448 3303
25dbc73a
AM
3304 /* TLS local dynamic got entry handling. */
3305 union {
3306 bfd_signed_vma refcount;
3307 bfd_vma offset;
3308 } tlsld_got;
252b5132 3309
c6dd29ce 3310 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3311 bfd_vma glink_pltresolve;
3312
3b36f7e6
AM
3313 /* Size of reserved GOT entries. */
3314 unsigned int got_header_size;
3315 /* Non-zero if allocating the header left a gap. */
3316 unsigned int got_gap;
3317
4a3dc543
RS
3318 /* The type of PLT we have chosen to use. */
3319 enum ppc_elf_plt_type plt_type;
3320
9d8504b1 3321 /* True if the target system is VxWorks. */
016687f8 3322 unsigned int is_vxworks:1;
9d8504b1
PB
3323
3324 /* The size of PLT entries. */
3325 int plt_entry_size;
3326 /* The distance between adjacent PLT slots. */
3327 int plt_slot_size;
3328 /* The size of the first PLT entry. */
3329 int plt_initial_entry_size;
016687f8 3330
87d72d41
AM
3331 /* Small local sym cache. */
3332 struct sym_cache sym_cache;
25dbc73a 3333};
252b5132 3334
94caa966
AM
3335/* Rename some of the generic section flags to better document how they
3336 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3337
3338/* Nonzero if this section has TLS related relocations. */
3339#define has_tls_reloc sec_flg0
3340
3341/* Nonzero if this section has a call to __tls_get_addr. */
3342#define has_tls_get_addr_call sec_flg1
3343
25dbc73a 3344/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3345
25dbc73a 3346#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3347 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3348 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3349
25dbc73a 3350/* Create an entry in a PPC ELF linker hash table. */
252b5132 3351
25dbc73a
AM
3352static struct bfd_hash_entry *
3353ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3354 struct bfd_hash_table *table,
3355 const char *string)
252b5132 3356{
25dbc73a
AM
3357 /* Allocate the structure if it has not already been allocated by a
3358 subclass. */
3359 if (entry == NULL)
3360 {
3361 entry = bfd_hash_allocate (table,
3362 sizeof (struct ppc_elf_link_hash_entry));
3363 if (entry == NULL)
3364 return entry;
3365 }
252b5132 3366
25dbc73a
AM
3367 /* Call the allocation method of the superclass. */
3368 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3369 if (entry != NULL)
3370 {
3371 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3372 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3373 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3374 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3375 }
252b5132 3376
25dbc73a 3377 return entry;
252b5132 3378}
3dab13f6 3379
25dbc73a 3380/* Create a PPC ELF linker hash table. */
3dab13f6 3381
25dbc73a
AM
3382static struct bfd_link_hash_table *
3383ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3384{
25dbc73a 3385 struct ppc_elf_link_hash_table *ret;
76e7a751
AM
3386 static struct ppc_elf_params default_params
3387 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0 };
3dab13f6 3388
25dbc73a
AM
3389 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3390 if (ret == NULL)
3391 return NULL;
3dab13f6 3392
66eb6687
AM
3393 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3394 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3395 sizeof (struct ppc_elf_link_hash_entry),
3396 PPC32_ELF_DATA))
3dab13f6 3397 {
25dbc73a
AM
3398 free (ret);
3399 return NULL;
3400 }
58111eb7 3401
a6aa5195
AM
3402 ret->elf.init_plt_refcount.refcount = 0;
3403 ret->elf.init_plt_refcount.glist = NULL;
3404 ret->elf.init_plt_offset.offset = 0;
3405 ret->elf.init_plt_offset.glist = NULL;
3406
db434ba0
AM
3407 ret->params = &default_params;
3408
c9a2f333
AM
3409 ret->sdata[0].name = ".sdata";
3410 ret->sdata[0].sym_name = "_SDA_BASE_";
3411 ret->sdata[0].bss_name = ".sbss";
3412
3413 ret->sdata[1].name = ".sdata2";
3414 ret->sdata[1].sym_name = "_SDA2_BASE_";
3415 ret->sdata[1].bss_name = ".sbss2";
3416
9d8504b1
PB
3417 ret->plt_entry_size = 12;
3418 ret->plt_slot_size = 8;
3419 ret->plt_initial_entry_size = 72;
9d8504b1 3420
25dbc73a
AM
3421 return &ret->elf.root;
3422}
3dab13f6 3423
5446cbdf
AM
3424/* Hook linker params into hash table. */
3425
3426void
3427ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3428{
3429 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3430
3431 if (htab)
3432 htab->params = params;
76e7a751 3433 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3434}
3435
9d8504b1 3436/* Create .got and the related sections. */
3dab13f6 3437
25dbc73a
AM
3438static bfd_boolean
3439ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3440{
3441 struct ppc_elf_link_hash_table *htab;
3442 asection *s;
3443 flagword flags;
3dab13f6 3444
25dbc73a
AM
3445 if (!_bfd_elf_create_got_section (abfd, info))
3446 return FALSE;
3dab13f6 3447
25dbc73a 3448 htab = ppc_elf_hash_table (info);
3d4d4302 3449 htab->got = s = bfd_get_linker_section (abfd, ".got");
25dbc73a
AM
3450 if (s == NULL)
3451 abort ();
3dab13f6 3452
9d8504b1
PB
3453 if (htab->is_vxworks)
3454 {
3d4d4302 3455 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
9d8504b1
PB
3456 if (!htab->sgotplt)
3457 abort ();
3458 }
3459 else
3460 {
3461 /* The powerpc .got has a blrl instruction in it. Mark it
3462 executable. */
3463 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3464 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3465 if (!bfd_set_section_flags (abfd, s, flags))
3466 return FALSE;
3467 }
3dab13f6 3468
3d4d4302 3469 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
64e77c6d
L
3470 if (!htab->relgot)
3471 abort ();
3dab13f6 3472
25dbc73a
AM
3473 return TRUE;
3474}
3dab13f6 3475
93d1b056
AM
3476/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3477 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3478 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3479
3480static bfd_boolean
3481ppc_elf_create_linker_section (bfd *abfd,
3482 struct bfd_link_info *info,
3483 flagword flags,
3484 elf_linker_section_t *lsect)
3485{
3486 asection *s;
3487
3488 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3489 | SEC_LINKER_CREATED);
3490
3491 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3492 if (s == NULL)
3493 return FALSE;
3494 lsect->section = s;
3495
3496 /* Define the sym on the first section of this name. */
3497 s = bfd_get_section_by_name (abfd, lsect->name);
3498
3499 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3500 if (lsect->sym == NULL)
3501 return FALSE;
3502 lsect->sym->root.u.def.value = 0x8000;
3503 return TRUE;
3504}
3505
e054468f
AM
3506static bfd_boolean
3507ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3508{
3509 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3510 asection *s;
3511 flagword flags;
3512
3513 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3514 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3515 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3516 htab->glink = s;
3517 if (s == NULL
5446cbdf
AM
3518 || !bfd_set_section_alignment (abfd, s,
3519 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3520 return FALSE;
3521
6177242a
AM
3522 if (!info->no_ld_generated_unwind_info)
3523 {
3524 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3525 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3526 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3527 htab->glink_eh_frame = s;
3528 if (s == NULL
3529 || !bfd_set_section_alignment (abfd, s, 2))
3530 return FALSE;
3531 }
3532
e054468f
AM
3533 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3534 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3535 htab->iplt = s;
3536 if (s == NULL
3537 || !bfd_set_section_alignment (abfd, s, 4))
3538 return FALSE;
3539
3540 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3541 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3542 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
e054468f
AM
3543 htab->reliplt = s;
3544 if (s == NULL
3545 || ! bfd_set_section_alignment (abfd, s, 2))
3546 return FALSE;
93d1b056
AM
3547
3548 if (!ppc_elf_create_linker_section (abfd, info, 0,
3549 &htab->sdata[0]))
3550 return FALSE;
3551
3552 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3553 &htab->sdata[1]))
3554 return FALSE;
3555
e054468f
AM
3556 return TRUE;
3557}
3558
25dbc73a
AM
3559/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3560 to output sections (just like _bfd_elf_create_dynamic_sections has
3561 to create .dynbss and .rela.bss). */
3dab13f6 3562
25dbc73a
AM
3563static bfd_boolean
3564ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3565{
3566 struct ppc_elf_link_hash_table *htab;
3567 asection *s;
3568 flagword flags;
3dab13f6 3569
25dbc73a 3570 htab = ppc_elf_hash_table (info);
3dab13f6 3571
25dbc73a
AM
3572 if (htab->got == NULL
3573 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3574 return FALSE;
3575
25dbc73a
AM
3576 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3577 return FALSE;
3dab13f6 3578
e054468f
AM
3579 if (htab->glink == NULL
3580 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3581 return FALSE;
3dab13f6 3582
3d4d4302 3583 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
14b2f831
AM
3584 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3585 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3586 htab->dynsbss = s;
3496cb2a 3587 if (s == NULL)
25dbc73a 3588 return FALSE;
3dab13f6 3589
0e1862bb 3590 if (! bfd_link_pic (info))
25dbc73a 3591 {
3d4d4302 3592 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
e054468f
AM
3593 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3594 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3595 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3596 htab->relsbss = s;
25dbc73a 3597 if (s == NULL
25dbc73a
AM
3598 || ! bfd_set_section_alignment (abfd, s, 2))
3599 return FALSE;
3600 }
3dab13f6 3601
711de32c
RS
3602 if (htab->is_vxworks
3603 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3604 return FALSE;
9d8504b1 3605
3d4d4302
AM
3606 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3607 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
25dbc73a
AM
3608 if (s == NULL)
3609 abort ();
3dab13f6 3610
3b36f7e6 3611 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3612 if (htab->plt_type == PLT_VXWORKS)
3613 /* The VxWorks PLT is a loaded section with contents. */
3614 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3615 return bfd_set_section_flags (abfd, s, flags);
3616}
3dab13f6 3617
25dbc73a 3618/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3619
25dbc73a 3620static void
fcfa13d2 3621ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3622 struct elf_link_hash_entry *dir,
3623 struct elf_link_hash_entry *ind)
3624{
3625 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3626
25dbc73a
AM
3627 edir = (struct ppc_elf_link_hash_entry *) dir;
3628 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3629
c79d6685
AM
3630 edir->tls_mask |= eind->tls_mask;
3631 edir->has_sda_refs |= eind->has_sda_refs;
3632
3633 /* If called to transfer flags for a weakdef during processing
3634 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3635 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3636 if (!(ELIMINATE_COPY_RELOCS
3637 && eind->elf.root.type != bfd_link_hash_indirect
3638 && edir->elf.dynamic_adjusted))
3639 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3640
3641 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3642 edir->elf.ref_regular |= eind->elf.ref_regular;
3643 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3644 edir->elf.needs_plt |= eind->elf.needs_plt;
3645 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3646
25dbc73a
AM
3647 if (eind->dyn_relocs != NULL)
3648 {
3649 if (edir->dyn_relocs != NULL)
3dab13f6 3650 {
6061a67d
AM
3651 struct elf_dyn_relocs **pp;
3652 struct elf_dyn_relocs *p;
3dab13f6 3653
fcfa13d2 3654 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3655 list. Merge any entries against the same section. */
3656 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3657 {
6061a67d 3658 struct elf_dyn_relocs *q;
25dbc73a
AM
3659
3660 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3661 if (q->sec == p->sec)
3662 {
3663 q->pc_count += p->pc_count;
3664 q->count += p->count;
3665 *pp = p->next;
3666 break;
3667 }
3668 if (q == NULL)
3669 pp = &p->next;
3dab13f6 3670 }
25dbc73a 3671 *pp = edir->dyn_relocs;
3dab13f6 3672 }
25dbc73a
AM
3673
3674 edir->dyn_relocs = eind->dyn_relocs;
3675 eind->dyn_relocs = NULL;
3dab13f6 3676 }
3dab13f6 3677
68ba6d40
AM
3678 /* If we were called to copy over info for a weak sym, that's all.
3679 You might think dyn_relocs need not be copied over; After all,
3680 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3681 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3682 code in ppc_elf_adjust_dynamic_symbol needs to check for
3683 dyn_relocs in read-only sections, and it does so on what is the
3684 DIR sym here. */
3685 if (eind->elf.root.type != bfd_link_hash_indirect)
3686 return;
3687
a6aa5195
AM
3688 /* Copy over the GOT refcount entries that we may have already seen to
3689 the symbol which just became indirect. */
fcfa13d2
AM
3690 edir->elf.got.refcount += eind->elf.got.refcount;
3691 eind->elf.got.refcount = 0;
a6aa5195
AM
3692
3693 /* And plt entries. */
3694 if (eind->elf.plt.plist != NULL)
3695 {
3696 if (edir->elf.plt.plist != NULL)
3697 {
3698 struct plt_entry **entp;
3699 struct plt_entry *ent;
3700
3701 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3702 {
3703 struct plt_entry *dent;
3704
3705 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3706 if (dent->sec == ent->sec && dent->addend == ent->addend)
3707 {
3708 dent->plt.refcount += ent->plt.refcount;
3709 *entp = ent->next;
3710 break;
3711 }
3712 if (dent == NULL)
3713 entp = &ent->next;
3714 }
3715 *entp = edir->elf.plt.plist;
3716 }
3717
3718 edir->elf.plt.plist = eind->elf.plt.plist;
3719 eind->elf.plt.plist = NULL;
3720 }
3721
fcfa13d2 3722 if (eind->elf.dynindx != -1)
25dbc73a 3723 {
fcfa13d2
AM
3724 if (edir->elf.dynindx != -1)
3725 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3726 edir->elf.dynstr_index);
a6aa5195
AM
3727 edir->elf.dynindx = eind->elf.dynindx;
3728 edir->elf.dynstr_index = eind->elf.dynstr_index;
3729 eind->elf.dynindx = -1;
3730 eind->elf.dynstr_index = 0;
25dbc73a 3731 }
25dbc73a 3732}
3dab13f6 3733
25dbc73a
AM
3734/* Hook called by the linker routine which adds symbols from an object
3735 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3736
25dbc73a
AM
3737static bfd_boolean
3738ppc_elf_add_symbol_hook (bfd *abfd,
3739 struct bfd_link_info *info,
3740 Elf_Internal_Sym *sym,
3741 const char **namep ATTRIBUTE_UNUSED,
3742 flagword *flagsp ATTRIBUTE_UNUSED,
3743 asection **secp,
3744 bfd_vma *valp)
3745{
3746 if (sym->st_shndx == SHN_COMMON
0e1862bb 3747 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3748 && is_ppc_elf (info->output_bfd)
3749 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3750 {
3751 /* Common symbols less than or equal to -G nn bytes are automatically
3752 put into .sbss. */
3753 struct ppc_elf_link_hash_table *htab;
3dab13f6 3754
25dbc73a
AM
3755 htab = ppc_elf_hash_table (info);
3756 if (htab->sbss == NULL)
3757 {
644285ef 3758 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3759
644285ef
AM
3760 if (!htab->elf.dynobj)
3761 htab->elf.dynobj = abfd;
3762
3496cb2a
L
3763 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3764 ".sbss",
3765 flags);
3766 if (htab->sbss == NULL)
25dbc73a 3767 return FALSE;
3dab13f6 3768 }
3dab13f6 3769
25dbc73a
AM
3770 *secp = htab->sbss;
3771 *valp = sym->st_size;
3772 }
3dab13f6 3773
a43942db 3774 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3775 && (abfd->flags & DYNAMIC) == 0
3776 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3777 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3778
25dbc73a 3779 return TRUE;
3dab13f6
AM
3780}
3781\f
25dbc73a
AM
3782/* Find a linker generated pointer with a given addend and type. */
3783
3784static elf_linker_section_pointers_t *
3785elf_find_pointer_linker_section
3786 (elf_linker_section_pointers_t *linker_pointers,
3787 bfd_vma addend,
3788 elf_linker_section_t *lsect)
252b5132 3789{
25dbc73a
AM
3790 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3791 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3792 return linker_pointers;
252b5132 3793
25dbc73a
AM
3794 return NULL;
3795}
3796
3797/* Allocate a pointer to live in a linker created section. */
3798
3799static bfd_boolean
93d1b056
AM
3800elf_allocate_pointer_linker_section (bfd *abfd,
3801 elf_linker_section_t *lsect,
3802 struct elf_link_hash_entry *h,
3803 const Elf_Internal_Rela *rel)
25dbc73a
AM
3804{
3805 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3806 elf_linker_section_pointers_t *linker_section_ptr;
3807 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3808 bfd_size_type amt;
3809
3810 BFD_ASSERT (lsect != NULL);
3811
3812 /* Is this a global symbol? */
3813 if (h != NULL)
3814 {
3815 struct ppc_elf_link_hash_entry *eh;
3816
3817 /* Has this symbol already been allocated? If so, our work is done. */
3818 eh = (struct ppc_elf_link_hash_entry *) h;
3819 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3820 rel->r_addend,
3821 lsect))
3822 return TRUE;
3823
3824 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3825 }
3826 else
3827 {
0c8d6e5c 3828 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3829
25dbc73a
AM
3830 /* Allocation of a pointer to a local symbol. */
3831 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3832
3833 /* Allocate a table to hold the local symbols if first time. */
3834 if (!ptr)
3835 {
0ffa91dd 3836 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3837
3838 amt = num_symbols;
3839 amt *= sizeof (elf_linker_section_pointers_t *);
3840 ptr = bfd_zalloc (abfd, amt);
3841
3842 if (!ptr)
3843 return FALSE;
3844
3845 elf_local_ptr_offsets (abfd) = ptr;
3846 }
3847
3848 /* Has this symbol already been allocated? If so, our work is done. */
3849 if (elf_find_pointer_linker_section (ptr[r_symndx],
3850 rel->r_addend,
3851 lsect))
3852 return TRUE;
252b5132 3853
25dbc73a 3854 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3855 }
41fcb14e 3856
25dbc73a
AM
3857 /* Allocate space for a pointer in the linker section, and allocate
3858 a new pointer record from internal memory. */
3859 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3860 amt = sizeof (elf_linker_section_pointers_t);
3861 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3862
25dbc73a 3863 if (!linker_section_ptr)
7619e7c7 3864 return FALSE;
41fcb14e 3865
25dbc73a
AM
3866 linker_section_ptr->next = *ptr_linker_section_ptr;
3867 linker_section_ptr->addend = rel->r_addend;
3868 linker_section_ptr->lsect = lsect;
25dbc73a 3869 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3870
93d1b056
AM
3871 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3872 return FALSE;
25dbc73a
AM
3873 linker_section_ptr->offset = lsect->section->size;
3874 lsect->section->size += 4;
7619e7c7 3875
25dbc73a
AM
3876#ifdef DEBUG
3877 fprintf (stderr,
3878 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3879 lsect->name, (long) linker_section_ptr->offset,
3880 (long) lsect->section->size);
3881#endif
7619e7c7
AM
3882
3883 return TRUE;
41fcb14e
AM
3884}
3885
e054468f 3886static struct plt_entry **
25dbc73a
AM
3887update_local_sym_info (bfd *abfd,
3888 Elf_Internal_Shdr *symtab_hdr,
3889 unsigned long r_symndx,
3890 int tls_type)
252b5132 3891{
25dbc73a 3892 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3893 struct plt_entry **local_plt;
25dbc73a 3894 char *local_got_tls_masks;
252b5132 3895
25dbc73a 3896 if (local_got_refcounts == NULL)
252b5132 3897 {
25dbc73a
AM
3898 bfd_size_type size = symtab_hdr->sh_info;
3899
e054468f
AM
3900 size *= (sizeof (*local_got_refcounts)
3901 + sizeof (*local_plt)
3902 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3903 local_got_refcounts = bfd_zalloc (abfd, size);
3904 if (local_got_refcounts == NULL)
e054468f 3905 return NULL;
25dbc73a 3906 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3907 }
41fcb14e 3908
e054468f
AM
3909 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3910 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3911 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3912 if (tls_type != PLT_IFUNC)
3913 local_got_refcounts[r_symndx] += 1;
3914 return local_plt + r_symndx;
25dbc73a 3915}
41fcb14e 3916
a6aa5195 3917static bfd_boolean
3ec01793 3918update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3919 asection *sec, bfd_vma addend)
3920{
3921 struct plt_entry *ent;
3922
32af9f6e
AM
3923 if (addend < 32768)
3924 sec = NULL;
3ec01793 3925 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3926 if (ent->sec == sec && ent->addend == addend)
3927 break;
3928 if (ent == NULL)
3929 {
3930 bfd_size_type amt = sizeof (*ent);
3931 ent = bfd_alloc (abfd, amt);
3932 if (ent == NULL)
3933 return FALSE;
3ec01793 3934 ent->next = *plist;
a6aa5195
AM
3935 ent->sec = sec;
3936 ent->addend = addend;
3937 ent->plt.refcount = 0;
3ec01793 3938 *plist = ent;
a6aa5195
AM
3939 }
3940 ent->plt.refcount += 1;
3941 return TRUE;
3942}
3943
3944static struct plt_entry *
3ec01793 3945find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3946{
3947 struct plt_entry *ent;
3948
3949 if (addend < 32768)
3950 sec = NULL;
3ec01793 3951 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3952 if (ent->sec == sec && ent->addend == addend)
3953 break;
3954 return ent;
3955}
3956
e054468f
AM
3957static bfd_boolean
3958is_branch_reloc (enum elf_ppc_reloc_type r_type)
3959{
3960 return (r_type == R_PPC_PLTREL24
3961 || r_type == R_PPC_LOCAL24PC
3962 || r_type == R_PPC_REL24
3963 || r_type == R_PPC_REL14
3964 || r_type == R_PPC_REL14_BRTAKEN
3965 || r_type == R_PPC_REL14_BRNTAKEN
3966 || r_type == R_PPC_ADDR24
3967 || r_type == R_PPC_ADDR14
3968 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3969 || r_type == R_PPC_ADDR14_BRNTAKEN
3970 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3971}
3972
25dbc73a
AM
3973static void
3974bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3975{
4eca0228 3976 _bfd_error_handler
695344c0 3977 /* xgettext:c-format */
25dbc73a
AM
3978 (_("%B: relocation %s cannot be used when making a shared object"),
3979 abfd,
3980 ppc_elf_howto_table[r_type]->name);
3981 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3982}
3983
25dbc73a
AM
3984/* Look through the relocs for a section during the first phase, and
3985 allocate space in the global offset table or procedure linkage
3986 table. */
252b5132 3987
b34976b6 3988static bfd_boolean
25dbc73a
AM
3989ppc_elf_check_relocs (bfd *abfd,
3990 struct bfd_link_info *info,
3991 asection *sec,
3992 const Elf_Internal_Rela *relocs)
252b5132 3993{
7619e7c7 3994 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3995 Elf_Internal_Shdr *symtab_hdr;
3996 struct elf_link_hash_entry **sym_hashes;
3997 const Elf_Internal_Rela *rel;
3998 const Elf_Internal_Rela *rel_end;
a6aa5195 3999 asection *got2, *sreloc;
727fc41e 4000 struct elf_link_hash_entry *tga;
25dbc73a 4001
0e1862bb 4002 if (bfd_link_relocatable (info))
25dbc73a 4003 return TRUE;
252b5132 4004
c87b5a93
AM
4005 /* Don't do anything special with non-loaded, non-alloced sections.
4006 In particular, any relocs in such sections should not affect GOT
4007 and PLT reference counting (ie. we don't allow them to create GOT
4008 or PLT entries), there's no possibility or desire to optimize TLS
4009 relocs, and there's not much point in propagating relocs to shared
4010 libs that the dynamic linker won't relocate. */
4011 if ((sec->flags & SEC_ALLOC) == 0)
4012 return TRUE;
4013
252b5132 4014#ifdef DEBUG
25dbc73a
AM
4015 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
4016 sec, abfd);
252b5132
RH
4017#endif
4018
0c8d6e5c 4019 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 4020
25dbc73a
AM
4021 /* Initialize howto table if not already done. */
4022 if (!ppc_elf_howto_table[R_PPC_ADDR32])
4023 ppc_elf_howto_init ();
4024
7619e7c7 4025 htab = ppc_elf_hash_table (info);
25f23106
AM
4026 if (htab->glink == NULL)
4027 {
4028 if (htab->elf.dynobj == NULL)
4029 htab->elf.dynobj = abfd;
4030 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
4031 return FALSE;
4032 }
727fc41e
AM
4033 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4034 FALSE, FALSE, TRUE);
0ffa91dd 4035 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 4036 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 4037 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4038 sreloc = NULL;
4039
4040 rel_end = relocs + sec->reloc_count;
4041 for (rel = relocs; rel < rel_end; rel++)
4042 {
4043 unsigned long r_symndx;
4044 enum elf_ppc_reloc_type r_type;
4045 struct elf_link_hash_entry *h;
727fc41e 4046 int tls_type;
cbf95972 4047 struct plt_entry **ifunc;
25dbc73a
AM
4048
4049 r_symndx = ELF32_R_SYM (rel->r_info);
4050 if (r_symndx < symtab_hdr->sh_info)
4051 h = NULL;
4052 else
973a3492
L
4053 {
4054 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4055 while (h->root.type == bfd_link_hash_indirect
4056 || h->root.type == bfd_link_hash_warning)
4057 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4058
4059 /* PR15323, ref flags aren't set for references in the same
4060 object. */
4061 h->root.non_ir_ref = 1;
973a3492 4062 }
25dbc73a
AM
4063
4064 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4065 This shows up in particular in an R_PPC_ADDR32 in the eabi
4066 startup code. */
3b36f7e6
AM
4067 if (h != NULL
4068 && htab->got == NULL
4069 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4070 {
3b36f7e6
AM
4071 if (htab->elf.dynobj == NULL)
4072 htab->elf.dynobj = abfd;
4073 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4074 return FALSE;
4075 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4076 }
252b5132 4077
727fc41e 4078 tls_type = 0;
de972ffa 4079 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4080 ifunc = NULL;
06a162cf 4081 if (h == NULL && !htab->is_vxworks)
e054468f 4082 {
06a162cf
AM
4083 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4084 abfd, r_symndx);
4085 if (isym == NULL)
4086 return FALSE;
4087
0bed072f 4088 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4089 {
0bed072f 4090 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4091 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4092 PLT_IFUNC);
4093 if (ifunc == NULL)
e054468f
AM
4094 return FALSE;
4095
06a162cf
AM
4096 /* STT_GNU_IFUNC symbols must have a PLT entry;
4097 In a non-pie executable even when there are
4098 no plt calls. */
0e1862bb 4099 if (!bfd_link_pic (info)
0bed072f 4100 || is_branch_reloc (r_type))
e054468f 4101 {
0bed072f
AM
4102 bfd_vma addend = 0;
4103 if (r_type == R_PPC_PLTREL24)
4104 {
4105 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4106 if (bfd_link_pic (info))
0bed072f
AM
4107 addend = rel->r_addend;
4108 }
4109 if (!update_plt_info (abfd, ifunc, got2, addend))
4110 return FALSE;
e054468f
AM
4111 }
4112 }
25f23106
AM
4113 }
4114
de972ffa
AM
4115 if (!htab->is_vxworks
4116 && is_branch_reloc (r_type)
4117 && h != NULL
4118 && h == tga)
25f23106 4119 {
de972ffa
AM
4120 if (rel != relocs
4121 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4122 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4123 /* We have a new-style __tls_get_addr call with a marker
4124 reloc. */
4125 ;
4126 else
4127 /* Mark this section as having an old-style call. */
4128 sec->has_tls_get_addr_call = 1;
e054468f 4129 }
727fc41e 4130
25dbc73a
AM
4131 switch (r_type)
4132 {
727fc41e
AM
4133 case R_PPC_TLSGD:
4134 case R_PPC_TLSLD:
4135 /* These special tls relocs tie a call to __tls_get_addr with
4136 its parameter symbol. */
4137 break;
4138
25dbc73a
AM
4139 case R_PPC_GOT_TLSLD16:
4140 case R_PPC_GOT_TLSLD16_LO:
4141 case R_PPC_GOT_TLSLD16_HI:
4142 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4143 tls_type = TLS_TLS | TLS_LD;
4144 goto dogottls;
252b5132 4145
25dbc73a
AM
4146 case R_PPC_GOT_TLSGD16:
4147 case R_PPC_GOT_TLSGD16_LO:
4148 case R_PPC_GOT_TLSGD16_HI:
4149 case R_PPC_GOT_TLSGD16_HA:
4150 tls_type = TLS_TLS | TLS_GD;
4151 goto dogottls;
4152
4153 case R_PPC_GOT_TPREL16:
4154 case R_PPC_GOT_TPREL16_LO:
4155 case R_PPC_GOT_TPREL16_HI:
4156 case R_PPC_GOT_TPREL16_HA:
0e1862bb 4157 if (bfd_link_pic (info))
25dbc73a
AM
4158 info->flags |= DF_STATIC_TLS;
4159 tls_type = TLS_TLS | TLS_TPREL;
4160 goto dogottls;
4161
4162 case R_PPC_GOT_DTPREL16:
4163 case R_PPC_GOT_DTPREL16_LO:
4164 case R_PPC_GOT_DTPREL16_HI:
4165 case R_PPC_GOT_DTPREL16_HA:
4166 tls_type = TLS_TLS | TLS_DTPREL;
4167 dogottls:
4168 sec->has_tls_reloc = 1;
1a0670f3 4169 /* Fall through. */
252b5132 4170
25dbc73a
AM
4171 /* GOT16 relocations */
4172 case R_PPC_GOT16:
4173 case R_PPC_GOT16_LO:
4174 case R_PPC_GOT16_HI:
4175 case R_PPC_GOT16_HA:
4176 /* This symbol requires a global offset table entry. */
4177 if (htab->got == NULL)
4178 {
4179 if (htab->elf.dynobj == NULL)
4180 htab->elf.dynobj = abfd;
4181 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4182 return FALSE;
4183 }
4184 if (h != NULL)
4185 {
4186 h->got.refcount += 1;
4187 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4188 }
4189 else
4190 /* This is a global offset table entry for a local symbol. */
4191 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4192 return FALSE;
91e21fb7
AM
4193
4194 /* We may also need a plt entry if the symbol turns out to be
4195 an ifunc. */
0e1862bb 4196 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4197 {
4198 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4199 return FALSE;
4200 }
25dbc73a 4201 break;
252b5132 4202
25dbc73a
AM
4203 /* Indirect .sdata relocation. */
4204 case R_PPC_EMB_SDAI16:
0e1862bb 4205 if (bfd_link_pic (info))
25dbc73a
AM
4206 {
4207 bad_shared_reloc (abfd, r_type);
4208 return FALSE;
4209 }
93d1b056
AM
4210 htab->sdata[0].sym->ref_regular = 1;
4211 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4212 h, rel))
25dbc73a 4213 return FALSE;
046183de
AM
4214 if (h != NULL)
4215 {
4216 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4217 h->non_got_ref = TRUE;
4218 }
25dbc73a 4219 break;
252b5132 4220
25dbc73a
AM
4221 /* Indirect .sdata2 relocation. */
4222 case R_PPC_EMB_SDA2I16:
0e1862bb 4223 if (bfd_link_pic (info))
25dbc73a
AM
4224 {
4225 bad_shared_reloc (abfd, r_type);
4226 return FALSE;
4227 }
93d1b056
AM
4228 htab->sdata[1].sym->ref_regular = 1;
4229 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4230 h, rel))
25dbc73a 4231 return FALSE;
046183de
AM
4232 if (h != NULL)
4233 {
4234 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4235 h->non_got_ref = TRUE;
4236 }
25dbc73a 4237 break;
252b5132 4238
93d1b056
AM
4239 case R_PPC_SDAREL16:
4240 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4241 /* Fall through. */
93d1b056 4242
b9c361e0
JL
4243 case R_PPC_VLE_SDAREL_LO16A:
4244 case R_PPC_VLE_SDAREL_LO16D:
4245 case R_PPC_VLE_SDAREL_HI16A:
4246 case R_PPC_VLE_SDAREL_HI16D:
4247 case R_PPC_VLE_SDAREL_HA16A:
4248 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4249 if (h != NULL)
4250 {
4251 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4252 h->non_got_ref = TRUE;
4253 }
4254 break;
4255
b9c361e0
JL
4256 case R_PPC_VLE_REL8:
4257 case R_PPC_VLE_REL15:
4258 case R_PPC_VLE_REL24:
4259 case R_PPC_VLE_LO16A:
4260 case R_PPC_VLE_LO16D:
4261 case R_PPC_VLE_HI16A:
4262 case R_PPC_VLE_HI16D:
4263 case R_PPC_VLE_HA16A:
4264 case R_PPC_VLE_HA16D:
4265 break;
4266
25dbc73a 4267 case R_PPC_EMB_SDA2REL:
0e1862bb 4268 if (bfd_link_pic (info))
046183de
AM
4269 {
4270 bad_shared_reloc (abfd, r_type);
4271 return FALSE;
4272 }
93d1b056 4273 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4274 if (h != NULL)
4275 {
4276 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4277 h->non_got_ref = TRUE;
4278 }
4279 break;
4280
b9c361e0
JL
4281 case R_PPC_VLE_SDA21_LO:
4282 case R_PPC_VLE_SDA21:
25dbc73a
AM
4283 case R_PPC_EMB_SDA21:
4284 case R_PPC_EMB_RELSDA:
0e1862bb 4285 if (bfd_link_pic (info))
046183de
AM
4286 {
4287 bad_shared_reloc (abfd, r_type);
4288 return FALSE;
4289 }
046183de
AM
4290 if (h != NULL)
4291 {
4292 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4293 h->non_got_ref = TRUE;
4294 }
4295 break;
4296
25dbc73a
AM
4297 case R_PPC_EMB_NADDR32:
4298 case R_PPC_EMB_NADDR16:
4299 case R_PPC_EMB_NADDR16_LO:
4300 case R_PPC_EMB_NADDR16_HI:
4301 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4302 if (bfd_link_pic (info))
25dbc73a
AM
4303 {
4304 bad_shared_reloc (abfd, r_type);
4305 return FALSE;
4306 }
4dc4a9a5 4307 if (h != NULL)
046183de 4308 h->non_got_ref = TRUE;
25dbc73a 4309 break;
252b5132 4310
25dbc73a 4311 case R_PPC_PLTREL24:
de972ffa 4312 if (h == NULL)
6d78d0b9
AM
4313 break;
4314 /* Fall through */
4315 case R_PPC_PLT32:
25dbc73a
AM
4316 case R_PPC_PLTREL32:
4317 case R_PPC_PLT16_LO:
4318 case R_PPC_PLT16_HI:
4319 case R_PPC_PLT16_HA:
4320#ifdef DEBUG
4321 fprintf (stderr, "Reloc requires a PLT entry\n");
4322#endif
cbf95972 4323 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4324 if (h == NULL)
4325 {
cbf95972
AM
4326 if (ifunc == NULL)
4327 {
4328 /* It does not make sense to have a procedure linkage
4329 table entry for a non-ifunc local symbol. */
4330 info->callbacks->einfo
695344c0 4331 /* xgettext:c-format */
cbf95972
AM
4332 (_("%P: %H: %s reloc against local symbol\n"),
4333 abfd, sec, rel->r_offset,
4334 ppc_elf_howto_table[r_type]->name);
4335 bfd_set_error (bfd_error_bad_value);
4336 return FALSE;
4337 }
25dbc73a 4338 }
a6aa5195
AM
4339 else
4340 {
016687f8 4341 bfd_vma addend = 0;
ee05f2fe 4342
016687f8
AM
4343 if (r_type == R_PPC_PLTREL24)
4344 {
4345 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4346 if (bfd_link_pic (info))
a877a2b6 4347 addend = rel->r_addend;
016687f8 4348 }
a6aa5195 4349 h->needs_plt = 1;
32af9f6e 4350 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4351 return FALSE;
4352 }
25dbc73a 4353 break;
ee05f2fe 4354
25dbc73a
AM
4355 /* The following relocations don't need to propagate the
4356 relocation if linking a shared object since they are
4357 section relative. */
4358 case R_PPC_SECTOFF:
4359 case R_PPC_SECTOFF_LO:
4360 case R_PPC_SECTOFF_HI:
4361 case R_PPC_SECTOFF_HA:
4362 case R_PPC_DTPREL16:
4363 case R_PPC_DTPREL16_LO:
4364 case R_PPC_DTPREL16_HI:
4365 case R_PPC_DTPREL16_HA:
4366 case R_PPC_TOC16:
4367 break;
252b5132 4368
d7128ce4
AM
4369 case R_PPC_REL16:
4370 case R_PPC_REL16_LO:
4371 case R_PPC_REL16_HI:
4372 case R_PPC_REL16_HA:
a680de9a 4373 case R_PPC_REL16DX_HA:
016687f8 4374 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4375 break;
4376
a6aa5195 4377 /* These are just markers. */
25dbc73a
AM
4378 case R_PPC_TLS:
4379 case R_PPC_EMB_MRKREF:
4380 case R_PPC_NONE:
4381 case R_PPC_max:
32af9f6e
AM
4382 case R_PPC_RELAX:
4383 case R_PPC_RELAX_PLT:
4384 case R_PPC_RELAX_PLTREL24:
25dbc73a 4385 break;
252b5132 4386
25dbc73a
AM
4387 /* These should only appear in dynamic objects. */
4388 case R_PPC_COPY:
4389 case R_PPC_GLOB_DAT:
4390 case R_PPC_JMP_SLOT:
4391 case R_PPC_RELATIVE:
e054468f 4392 case R_PPC_IRELATIVE:
25dbc73a 4393 break;
252b5132 4394
25dbc73a
AM
4395 /* These aren't handled yet. We'll report an error later. */
4396 case R_PPC_ADDR30:
4397 case R_PPC_EMB_RELSEC16:
4398 case R_PPC_EMB_RELST_LO:
4399 case R_PPC_EMB_RELST_HI:
4400 case R_PPC_EMB_RELST_HA:
4401 case R_PPC_EMB_BIT_FLD:
4402 break;
252b5132 4403
25dbc73a
AM
4404 /* This refers only to functions defined in the shared library. */
4405 case R_PPC_LOCAL24PC:
727fc41e 4406 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4407 {
4408 htab->plt_type = PLT_OLD;
4409 htab->old_bfd = abfd;
4410 }
c7e17e05
AM
4411 if (h != NULL && h->type == STT_GNU_IFUNC)
4412 {
c7e17e05
AM
4413 h->needs_plt = 1;
4414 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4415 return FALSE;
4416 }
25dbc73a 4417 break;
252b5132 4418
25dbc73a
AM
4419 /* This relocation describes the C++ object vtable hierarchy.
4420 Reconstruct it for later use during GC. */
4421 case R_PPC_GNU_VTINHERIT:
4422 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4423 return FALSE;
4424 break;
252b5132 4425
25dbc73a
AM
4426 /* This relocation describes which C++ vtable entries are actually
4427 used. Record for later use during GC. */
4428 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4429 BFD_ASSERT (h != NULL);
4430 if (h != NULL
4431 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4432 return FALSE;
4433 break;
252b5132 4434
25dbc73a
AM
4435 /* We shouldn't really be seeing these. */
4436 case R_PPC_TPREL32:
1d483afe
AM
4437 case R_PPC_TPREL16:
4438 case R_PPC_TPREL16_LO:
4439 case R_PPC_TPREL16_HI:
4440 case R_PPC_TPREL16_HA:
0e1862bb 4441 if (bfd_link_pic (info))
25dbc73a
AM
4442 info->flags |= DF_STATIC_TLS;
4443 goto dodyn;
252b5132 4444
25dbc73a
AM
4445 /* Nor these. */
4446 case R_PPC_DTPMOD32:
4447 case R_PPC_DTPREL32:
4448 goto dodyn;
252b5132 4449
9edfd1af
AM
4450 case R_PPC_REL32:
4451 if (h == NULL
4452 && got2 != NULL
4453 && (sec->flags & SEC_CODE) != 0
0e1862bb 4454 && bfd_link_pic (info)
4a3dc543 4455 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4456 {
4457 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4458 the start of a function, which assembles to a REL32
4459 reference to .got2. If we detect one of these, then
4460 force the old PLT layout because the linker cannot
4461 reliably deduce the GOT pointer value needed for
4462 PLT call stubs. */
4463 asection *s;
87d72d41 4464 Elf_Internal_Sym *isym;
9edfd1af 4465
87d72d41
AM
4466 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4467 abfd, r_symndx);
4468 if (isym == NULL)
4469 return FALSE;
4470
4471 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4472 if (s == got2)
016687f8
AM
4473 {
4474 htab->plt_type = PLT_OLD;
4475 htab->old_bfd = abfd;
4476 }
9edfd1af 4477 }
7123df0e 4478 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4479 break;
625af618
AM
4480 /* fall through */
4481
4482 case R_PPC_ADDR32:
4483 case R_PPC_ADDR16:
4484 case R_PPC_ADDR16_LO:
4485 case R_PPC_ADDR16_HI:
4486 case R_PPC_ADDR16_HA:
4487 case R_PPC_UADDR32:
4488 case R_PPC_UADDR16:
0e1862bb 4489 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4490 {
4491 /* We may need a plt entry if the symbol turns out to be
4492 a function defined in a dynamic object. */
3ec01793 4493 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4494 return FALSE;
4495
4496 /* We may need a copy reloc too. */
4497 h->non_got_ref = 1;
4498 h->pointer_equality_needed = 1;
d3e454b9
AM
4499 if (r_type == R_PPC_ADDR16_HA)
4500 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4501 if (r_type == R_PPC_ADDR16_LO)
4502 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4503 }
4504 goto dodyn;
9edfd1af 4505
25dbc73a
AM
4506 case R_PPC_REL24:
4507 case R_PPC_REL14:
4508 case R_PPC_REL14_BRTAKEN:
4509 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4510 if (h == NULL)
25dbc73a 4511 break;
7123df0e 4512 if (h == htab->elf.hgot)
d7128ce4 4513 {
7123df0e 4514 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4515 {
4516 htab->plt_type = PLT_OLD;
4517 htab->old_bfd = abfd;
4518 }
d7128ce4
AM
4519 break;
4520 }
25dbc73a 4521 /* fall through */
ee05f2fe 4522
25dbc73a 4523 case R_PPC_ADDR24:
25dbc73a
AM
4524 case R_PPC_ADDR14:
4525 case R_PPC_ADDR14_BRTAKEN:
4526 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4527 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4528 {
4529 /* We may need a plt entry if the symbol turns out to be
4530 a function defined in a dynamic object. */
e054468f 4531 h->needs_plt = 1;
de972ffa 4532 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4533 return FALSE;
625af618 4534 break;
25dbc73a 4535 }
7619e7c7 4536
25dbc73a
AM
4537 dodyn:
4538 /* If we are creating a shared library, and this is a reloc
4539 against a global symbol, or a non PC relative reloc
4540 against a local symbol, then we need to copy the reloc
4541 into the shared library. However, if we are linking with
4542 -Bsymbolic, we do not need to copy a reloc against a
4543 global symbol which is defined in an object we are
4544 including in the link (i.e., DEF_REGULAR is set). At
4545 this point we have not seen all the input files, so it is
4546 possible that DEF_REGULAR is not set now but will be set
4547 later (it is never cleared). In case of a weak definition,
4548 DEF_REGULAR may be cleared later by a strong definition in
4549 a shared library. We account for that possibility below by
4550 storing information in the dyn_relocs field of the hash
4551 table entry. A similar situation occurs when creating
4552 shared libraries and symbol visibility changes render the
4553 symbol local.
7619e7c7 4554
25dbc73a
AM
4555 If on the other hand, we are creating an executable, we
4556 may need to keep relocations for symbols satisfied by a
4557 dynamic library if we manage to avoid copy relocs for the
4558 symbol. */
0e1862bb 4559 if ((bfd_link_pic (info)
1d483afe 4560 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4561 || (h != NULL
198f1157 4562 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4563 || h->root.type == bfd_link_hash_defweak
4564 || !h->def_regular))))
4565 || (ELIMINATE_COPY_RELOCS
0e1862bb 4566 && !bfd_link_pic (info)
25dbc73a
AM
4567 && h != NULL
4568 && (h->root.type == bfd_link_hash_defweak
de972ffa 4569 || !h->def_regular)))
25dbc73a 4570 {
25dbc73a
AM
4571#ifdef DEBUG
4572 fprintf (stderr,
4573 "ppc_elf_check_relocs needs to "
4574 "create relocation for %s\n",
4575 (h && h->root.root.string
4576 ? h->root.root.string : "<unknown>"));
4577#endif
4578 if (sreloc == NULL)
4579 {
c9a2f333
AM
4580 if (htab->elf.dynobj == NULL)
4581 htab->elf.dynobj = abfd;
83bac4b0
NC
4582
4583 sreloc = _bfd_elf_make_dynamic_reloc_section
4584 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4585
25dbc73a 4586 if (sreloc == NULL)
83bac4b0 4587 return FALSE;
25dbc73a 4588 }
7619e7c7 4589
25dbc73a
AM
4590 /* If this is a global symbol, we count the number of
4591 relocations we need for this symbol. */
4592 if (h != NULL)
4593 {
f95f8542
AM
4594 struct elf_dyn_relocs *p;
4595 struct elf_dyn_relocs **rel_head;
4596
91d6fa6a 4597 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4598 p = *rel_head;
4599 if (p == NULL || p->sec != sec)
4600 {
4601 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4602 if (p == NULL)
4603 return FALSE;
4604 p->next = *rel_head;
4605 *rel_head = p;
4606 p->sec = sec;
4607 p->count = 0;
4608 p->pc_count = 0;
4609 }
4610 p->count += 1;
4611 if (!must_be_dyn_reloc (info, r_type))
4612 p->pc_count += 1;
25dbc73a
AM
4613 }
4614 else
4615 {
4616 /* Track dynamic relocs needed for local syms too.
4617 We really need local syms available to do this
4618 easily. Oh well. */
f95f8542
AM
4619 struct ppc_dyn_relocs *p;
4620 struct ppc_dyn_relocs **rel_head;
4621 bfd_boolean is_ifunc;
25dbc73a 4622 asection *s;
6edfbbad 4623 void *vpp;
87d72d41 4624 Elf_Internal_Sym *isym;
6edfbbad 4625
87d72d41
AM
4626 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4627 abfd, r_symndx);
4628 if (isym == NULL)
25dbc73a 4629 return FALSE;
7fce784e 4630
87d72d41
AM
4631 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4632 if (s == NULL)
4633 s = sec;
4634
6edfbbad 4635 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4636 rel_head = (struct ppc_dyn_relocs **) vpp;
4637 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4638 p = *rel_head;
4639 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4640 p = p->next;
4641 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4642 {
4643 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4644 if (p == NULL)
4645 return FALSE;
4646 p->next = *rel_head;
4647 *rel_head = p;
4648 p->sec = sec;
4649 p->ifunc = is_ifunc;
4650 p->count = 0;
4651 }
4652 p->count += 1;
25dbc73a 4653 }
7619e7c7 4654 }
25dbc73a
AM
4655
4656 break;
7619e7c7
AM
4657 }
4658 }
ee05f2fe 4659
25dbc73a
AM
4660 return TRUE;
4661}
4662\f
005d79fd
AM
4663/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4664 and OBFD, and merge non-conflicting ones. */
4665void
50e03d47 4666_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4667{
50e03d47 4668 bfd *obfd = info->output_bfd;
c6e65352
DJ
4669 obj_attribute *in_attr, *in_attrs;
4670 obj_attribute *out_attr, *out_attrs;
34c8bcba 4671
c6e65352
DJ
4672 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4673 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4674
c6e65352
DJ
4675 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4676 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4677
c6e65352 4678 if (in_attr->i != out_attr->i)
34c8bcba 4679 {
005d79fd
AM
4680 int in_fp = in_attr->i & 3;
4681 int out_fp = out_attr->i & 3;
4682
4683 if (in_fp == 0)
34c8bcba 4684 ;
005d79fd
AM
4685 else if (out_fp == 0)
4686 {
4687 out_attr->type = 1;
4688 out_attr->i ^= in_fp;
4689 }
4690 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4691 _bfd_error_handler
695344c0 4692 /* xgettext:c-format */
34c8bcba 4693 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4694 else if (out_fp == 2 && in_fp != 2)
4695 _bfd_error_handler
695344c0 4696 /* xgettext:c-format */
005d79fd
AM
4697 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4698 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4699 _bfd_error_handler
695344c0 4700 /* xgettext:c-format */
005d79fd
AM
4701 (_("Warning: %B uses double-precision hard float, "
4702 "%B uses single-precision hard float"), obfd, ibfd);
4703 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4704 _bfd_error_handler
695344c0 4705 /* xgettext:c-format */
005d79fd
AM
4706 (_("Warning: %B uses double-precision hard float, "
4707 "%B uses single-precision hard float"), ibfd, obfd);
4708
4709 in_fp = in_attr->i & 0xc;
4710 out_fp = out_attr->i & 0xc;
4711 if (in_fp == 0)
4712 ;
4713 else if (out_fp == 0)
4714 {
4715 out_attr->type = 1;
4716 out_attr->i ^= in_fp;
4717 }
4718 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4719 _bfd_error_handler
695344c0 4720 /* xgettext:c-format */
005d79fd
AM
4721 (_("Warning: %B uses 64-bit long double, "
4722 "%B uses 128-bit long double"), ibfd, obfd);
4723 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4724 _bfd_error_handler
695344c0 4725 /* xgettext:c-format */
005d79fd
AM
4726 (_("Warning: %B uses 64-bit long double, "
4727 "%B uses 128-bit long double"), obfd, ibfd);
4728 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4729 _bfd_error_handler
695344c0 4730 /* xgettext:c-format */
005d79fd
AM
4731 (_("Warning: %B uses IBM long double, "
4732 "%B uses IEEE long double"), ibfd, obfd);
4733 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4734 _bfd_error_handler
695344c0 4735 /* xgettext:c-format */
005d79fd
AM
4736 (_("Warning: %B uses IBM long double, "
4737 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4738 }
005d79fd
AM
4739}
4740
4741/* Merge object attributes from IBFD into OBFD. Warn if
4742 there are conflicting attributes. */
4743static bfd_boolean
50e03d47 4744ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4745{
50e03d47 4746 bfd *obfd;
005d79fd
AM
4747 obj_attribute *in_attr, *in_attrs;
4748 obj_attribute *out_attr, *out_attrs;
4749
50e03d47 4750 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4751
50e03d47 4752 obfd = info->output_bfd;
005d79fd
AM
4753 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4754 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4755
4756 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4757 merge non-conflicting ones. */
4758 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4759 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4760 if (in_attr->i != out_attr->i)
4761 {
005d79fd
AM
4762 int in_vec = in_attr->i & 3;
4763 int out_vec = out_attr->i & 3;
c6e65352 4764
005d79fd
AM
4765 if (in_vec == 0)
4766 ;
4767 else if (out_vec == 0)
c6e65352 4768 {
005d79fd
AM
4769 out_attr->type = 1;
4770 out_attr->i = in_vec;
c6e65352 4771 }
c6e65352
DJ
4772 /* For now, allow generic to transition to AltiVec or SPE
4773 without a warning. If GCC marked files with their stack
4774 alignment and used don't-care markings for files which are
4775 not affected by the vector ABI, we could warn about this
4776 case too. */
005d79fd 4777 else if (in_vec == 1)
c6e65352 4778 ;
005d79fd
AM
4779 else if (out_vec == 1)
4780 {
4781 out_attr->type = 1;
4782 out_attr->i = in_vec;
4783 }
4784 else if (out_vec < in_vec)
c6e65352 4785 _bfd_error_handler
695344c0 4786 /* xgettext:c-format */
005d79fd
AM
4787 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4788 obfd, ibfd);
4789 else if (out_vec > in_vec)
c6e65352 4790 _bfd_error_handler
695344c0 4791 /* xgettext:c-format */
005d79fd
AM
4792 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4793 ibfd, obfd);
34c8bcba
JM
4794 }
4795
f82e0623
NF
4796 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4797 and merge non-conflicting ones. */
4798 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4799 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4800 if (in_attr->i != out_attr->i)
4801 {
005d79fd
AM
4802 int in_struct = in_attr->i & 3;
4803 int out_struct = out_attr->i & 3;
4804
4805 if (in_struct == 0 || in_struct == 3)
f82e0623 4806 ;
005d79fd
AM
4807 else if (out_struct == 0)
4808 {
4809 out_attr->type = 1;
4810 out_attr->i = in_struct;
4811 }
4812 else if (out_struct < in_struct)
4813 _bfd_error_handler
695344c0 4814 /* xgettext:c-format */
005d79fd
AM
4815 (_("Warning: %B uses r3/r4 for small structure returns, "
4816 "%B uses memory"), obfd, ibfd);
4817 else if (out_struct > in_struct)
4818 _bfd_error_handler
695344c0 4819 /* xgettext:c-format */
005d79fd
AM
4820 (_("Warning: %B uses r3/r4 for small structure returns, "
4821 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4822 }
4823
34c8bcba 4824 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4825 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4826
4827 return TRUE;
4828}
4829
8853c3d3
AM
4830/* Merge backend specific data from an object file to the output
4831 object file when linking. */
4832
4833static bfd_boolean
50e03d47 4834ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4835{
50e03d47 4836 bfd *obfd = info->output_bfd;
8853c3d3
AM
4837 flagword old_flags;
4838 flagword new_flags;
4839 bfd_boolean error;
4840
0c8d6e5c 4841 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4842 return TRUE;
4843
cc643b88 4844 /* Check if we have the same endianness. */
50e03d47 4845 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4846 return FALSE;
4847
50e03d47 4848 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4849 return FALSE;
4850
8853c3d3
AM
4851 new_flags = elf_elfheader (ibfd)->e_flags;
4852 old_flags = elf_elfheader (obfd)->e_flags;
4853 if (!elf_flags_init (obfd))
4854 {
4855 /* First call, no flags set. */
4856 elf_flags_init (obfd) = TRUE;
4857 elf_elfheader (obfd)->e_flags = new_flags;
4858 }
4859
4860 /* Compatible flags are ok. */
4861 else if (new_flags == old_flags)
4862 ;
4863
4864 /* Incompatible flags. */
4865 else
4866 {
4867 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4868 to be linked with either. */
4869 error = FALSE;
4870 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4871 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4872 {
4873 error = TRUE;
4eca0228 4874 _bfd_error_handler
8853c3d3
AM
4875 (_("%B: compiled with -mrelocatable and linked with "
4876 "modules compiled normally"), ibfd);
4877 }
4878 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4879 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4880 {
4881 error = TRUE;
4eca0228 4882 _bfd_error_handler
8853c3d3
AM
4883 (_("%B: compiled normally and linked with "
4884 "modules compiled with -mrelocatable"), ibfd);
4885 }
4886
4887 /* The output is -mrelocatable-lib iff both the input files are. */
4888 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4889 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4890
4891 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4892 but each input file is either -mrelocatable or -mrelocatable-lib. */
4893 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4894 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4895 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4896 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4897
4898 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4899 any module uses it. */
4900 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4901
4902 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4903 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4904
4905 /* Warn about any other mismatches. */
4906 if (new_flags != old_flags)
4907 {
4908 error = TRUE;
4eca0228 4909 _bfd_error_handler
695344c0 4910 /* xgettext:c-format */
8853c3d3
AM
4911 (_("%B: uses different e_flags (0x%lx) fields "
4912 "than previous modules (0x%lx)"),
4913 ibfd, (long) new_flags, (long) old_flags);
4914 }
4915
4916 if (error)
4917 {
4918 bfd_set_error (bfd_error_bad_value);
4919 return FALSE;
4920 }
4921 }
4922
4923 return TRUE;
4924}
b9c361e0
JL
4925
4926static void
86c95733
AM
4927ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
4928 bfd_vma value,
4929 split16_format_type split16_format)
b9c361e0
JL
4930
4931{
86c95733 4932 unsigned int insn, top5;
b9c361e0 4933
86c95733
AM
4934 insn = bfd_get_32 (output_bfd, loc);
4935 top5 = value & 0xf800;
4936 top5 = top5 << (split16_format == split16a_type ? 9 : 5);
dfdaec14 4937 insn &= (split16_format == split16a_type ? ~0x1f007ff : ~0x1f07ff);
b9c361e0 4938 insn |= top5;
86c95733
AM
4939 insn |= value & 0x7ff;
4940 bfd_put_32 (output_bfd, insn, loc);
b9c361e0
JL
4941}
4942
8853c3d3 4943\f
d7128ce4
AM
4944/* Choose which PLT scheme to use, and set .plt flags appropriately.
4945 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4946int
4947ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4948 struct bfd_link_info *info)
d7128ce4
AM
4949{
4950 struct ppc_elf_link_hash_table *htab;
9d8504b1 4951 flagword flags;
d7128ce4
AM
4952
4953 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4954
4955 if (htab->plt_type == PLT_UNSET)
016687f8 4956 {
b3874e1a
AM
4957 struct elf_link_hash_entry *h;
4958
5446cbdf 4959 if (htab->params->plt_style == PLT_OLD)
016687f8 4960 htab->plt_type = PLT_OLD;
0e1862bb 4961 else if (bfd_link_pic (info)
b3874e1a
AM
4962 && htab->elf.dynamic_sections_created
4963 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4964 FALSE, FALSE, TRUE)) != NULL
4965 && (h->type == STT_FUNC
4966 || h->needs_plt)
4967 && h->ref_regular
4968 && !(SYMBOL_CALLS_LOCAL (info, h)
4969 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4970 && h->root.type == bfd_link_hash_undefweak)))
4971 {
4972 /* Profiling of shared libs (and pies) is not supported with
4973 secure plt, because ppc32 does profiling before a
4974 function prologue and a secure plt pic call stubs needs
4975 r30 to be set up. */
4976 htab->plt_type = PLT_OLD;
4977 }
016687f8
AM
4978 else
4979 {
4980 bfd *ibfd;
5446cbdf 4981 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4982
4983 /* Look through the reloc flags left by ppc_elf_check_relocs.
4984 Use the old style bss plt if a file makes plt calls
4985 without using the new relocs, and if ld isn't given
4986 --secure-plt and we never see REL16 relocs. */
4987 if (plt_type == PLT_UNSET)
4988 plt_type = PLT_OLD;
c72f2fb2 4989 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 4990 if (is_ppc_elf (ibfd))
016687f8
AM
4991 {
4992 if (ppc_elf_tdata (ibfd)->has_rel16)
4993 plt_type = PLT_NEW;
4994 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4995 {
4996 plt_type = PLT_OLD;
4997 htab->old_bfd = ibfd;
4998 break;
4999 }
5000 }
5001 htab->plt_type = plt_type;
5002 }
5003 }
5446cbdf 5004 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5005 {
5006 if (htab->old_bfd != NULL)
5007 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5008 htab->old_bfd);
5009 else
5010 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5011 }
d7128ce4 5012
4a3dc543 5013 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5014
4a3dc543 5015 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5016 {
5017 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5018 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5019
5020 /* The new PLT is a loaded section. */
5021 if (htab->plt != NULL
5022 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
5023 return -1;
5024
5025 /* The new GOT is not executable. */
5026 if (htab->got != NULL
5027 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
5028 return -1;
d7128ce4
AM
5029 }
5030 else
5031 {
5032 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5033 if (htab->glink != NULL
5034 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5035 return -1;
d7128ce4 5036 }
4a3dc543 5037 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5038}
5039\f
25dbc73a
AM
5040/* Return the section that should be marked against GC for a given
5041 relocation. */
586119b3 5042
25dbc73a
AM
5043static asection *
5044ppc_elf_gc_mark_hook (asection *sec,
07adf181 5045 struct bfd_link_info *info,
25dbc73a
AM
5046 Elf_Internal_Rela *rel,
5047 struct elf_link_hash_entry *h,
5048 Elf_Internal_Sym *sym)
5049{
5050 if (h != NULL)
07adf181
AM
5051 switch (ELF32_R_TYPE (rel->r_info))
5052 {
5053 case R_PPC_GNU_VTINHERIT:
5054 case R_PPC_GNU_VTENTRY:
5055 return NULL;
5056 }
5057
5058 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5059}
a876ecf9 5060
25dbc73a
AM
5061/* Update the got, plt and dynamic reloc reference counts for the
5062 section being removed. */
5063
5064static bfd_boolean
5065ppc_elf_gc_sweep_hook (bfd *abfd,
5066 struct bfd_link_info *info,
5067 asection *sec,
5068 const Elf_Internal_Rela *relocs)
5069{
5070 struct ppc_elf_link_hash_table *htab;
5071 Elf_Internal_Shdr *symtab_hdr;
5072 struct elf_link_hash_entry **sym_hashes;
5073 bfd_signed_vma *local_got_refcounts;
5074 const Elf_Internal_Rela *rel, *relend;
a6aa5195 5075 asection *got2;
25dbc73a 5076
0e1862bb 5077 if (bfd_link_relocatable (info))
7dda2462
TG
5078 return TRUE;
5079
c87b5a93
AM
5080 if ((sec->flags & SEC_ALLOC) == 0)
5081 return TRUE;
5082
25dbc73a
AM
5083 elf_section_data (sec)->local_dynrel = NULL;
5084
5085 htab = ppc_elf_hash_table (info);
0ffa91dd 5086 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
5087 sym_hashes = elf_sym_hashes (abfd);
5088 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 5089 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
5090
5091 relend = relocs + sec->reloc_count;
5092 for (rel = relocs; rel < relend; rel++)
5093 {
5094 unsigned long r_symndx;
5095 enum elf_ppc_reloc_type r_type;
5096 struct elf_link_hash_entry *h = NULL;
5097
5098 r_symndx = ELF32_R_SYM (rel->r_info);
5099 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 5100 {
6061a67d 5101 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
5102 struct ppc_elf_link_hash_entry *eh;
5103
5104 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5105 while (h->root.type == bfd_link_hash_indirect
5106 || h->root.type == bfd_link_hash_warning)
5107 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5108 eh = (struct ppc_elf_link_hash_entry *) h;
5109
5110 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5111 if (p->sec == sec)
5112 {
5113 /* Everything must go for SEC. */
5114 *pp = p->next;
5115 break;
5116 }
a876ecf9 5117 }
ee05f2fe 5118
25dbc73a 5119 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
5120 if (!htab->is_vxworks
5121 && h == NULL
5122 && local_got_refcounts != NULL
0e1862bb 5123 && (!bfd_link_pic (info)
de972ffa 5124 || is_branch_reloc (r_type)))
e054468f 5125 {
de972ffa
AM
5126 struct plt_entry **local_plt = (struct plt_entry **)
5127 (local_got_refcounts + symtab_hdr->sh_info);
5128 char *local_got_tls_masks = (char *)
5129 (local_plt + symtab_hdr->sh_info);
5130 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 5131 {
de972ffa 5132 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
5133 bfd_vma addend = 0;
5134 struct plt_entry *ent;
5135
0e1862bb 5136 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5137 addend = rel->r_addend;
5138 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
5139 if (ent->plt.refcount > 0)
5140 ent->plt.refcount -= 1;
5141 continue;
5142 }
5143 }
5144
25dbc73a 5145 switch (r_type)
ee05f2fe 5146 {
25dbc73a
AM
5147 case R_PPC_GOT_TLSLD16:
5148 case R_PPC_GOT_TLSLD16_LO:
5149 case R_PPC_GOT_TLSLD16_HI:
5150 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
5151 case R_PPC_GOT_TLSGD16:
5152 case R_PPC_GOT_TLSGD16_LO:
5153 case R_PPC_GOT_TLSGD16_HI:
5154 case R_PPC_GOT_TLSGD16_HA:
5155 case R_PPC_GOT_TPREL16:
5156 case R_PPC_GOT_TPREL16_LO:
5157 case R_PPC_GOT_TPREL16_HI:
5158 case R_PPC_GOT_TPREL16_HA:
5159 case R_PPC_GOT_DTPREL16:
5160 case R_PPC_GOT_DTPREL16_LO:
5161 case R_PPC_GOT_DTPREL16_HI:
5162 case R_PPC_GOT_DTPREL16_HA:
5163 case R_PPC_GOT16:
5164 case R_PPC_GOT16_LO:
5165 case R_PPC_GOT16_HI:
5166 case R_PPC_GOT16_HA:
5167 if (h != NULL)
ee05f2fe 5168 {
25dbc73a
AM
5169 if (h->got.refcount > 0)
5170 h->got.refcount--;
0e1862bb 5171 if (!bfd_link_pic (info))
91e21fb7
AM
5172 {
5173 struct plt_entry *ent;
5174
5175 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 5176 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
5177 ent->plt.refcount -= 1;
5178 }
ee05f2fe 5179 }
25dbc73a
AM
5180 else if (local_got_refcounts != NULL)
5181 {
5182 if (local_got_refcounts[r_symndx] > 0)
5183 local_got_refcounts[r_symndx]--;
5184 }
5185 break;
ee05f2fe 5186
25dbc73a
AM
5187 case R_PPC_REL24:
5188 case R_PPC_REL14:
5189 case R_PPC_REL14_BRTAKEN:
5190 case R_PPC_REL14_BRNTAKEN:
5191 case R_PPC_REL32:
3b36f7e6 5192 if (h == NULL || h == htab->elf.hgot)
25dbc73a 5193 break;
1a0670f3 5194 /* Fall through. */
ee05f2fe 5195
25dbc73a
AM
5196 case R_PPC_ADDR32:
5197 case R_PPC_ADDR24:
5198 case R_PPC_ADDR16:
5199 case R_PPC_ADDR16_LO:
5200 case R_PPC_ADDR16_HI:
5201 case R_PPC_ADDR16_HA:
5202 case R_PPC_ADDR14:
5203 case R_PPC_ADDR14_BRTAKEN:
5204 case R_PPC_ADDR14_BRNTAKEN:
5205 case R_PPC_UADDR32:
5206 case R_PPC_UADDR16:
0e1862bb 5207 if (bfd_link_pic (info))
87538722 5208 break;
1a0670f3 5209 /* Fall through. */
87538722 5210
25dbc73a
AM
5211 case R_PPC_PLT32:
5212 case R_PPC_PLTREL24:
87538722 5213 case R_PPC_PLTREL32:
25dbc73a
AM
5214 case R_PPC_PLT16_LO:
5215 case R_PPC_PLT16_HI:
5216 case R_PPC_PLT16_HA:
5217 if (h != NULL)
5218 {
a877a2b6
AM
5219 bfd_vma addend = 0;
5220 struct plt_entry *ent;
5221
0e1862bb 5222 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5223 addend = rel->r_addend;
5224 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5225 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5226 ent->plt.refcount -= 1;
25dbc73a
AM
5227 }
5228 break;
ee05f2fe 5229
25dbc73a
AM
5230 default:
5231 break;
5232 }
7fce784e 5233 }
7fce784e
AS
5234 return TRUE;
5235}
25dbc73a 5236\f
3a71aa26
AM
5237/* Set plt output section type, htab->tls_get_addr, and call the
5238 generic ELF tls_setup function. */
7fce784e 5239
25dbc73a 5240asection *
5446cbdf 5241ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5242{
25dbc73a 5243 struct ppc_elf_link_hash_table *htab;
7fce784e 5244
25dbc73a 5245 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5246 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5247 FALSE, FALSE, TRUE);
f01f1741
AM
5248 if (htab->plt_type != PLT_NEW)
5249 htab->params->no_tls_get_addr_opt = TRUE;
5250
5446cbdf 5251 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5252 {
5253 struct elf_link_hash_entry *opt, *tga;
5254 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5255 FALSE, FALSE, TRUE);
5256 if (opt != NULL
5257 && (opt->root.type == bfd_link_hash_defined
5258 || opt->root.type == bfd_link_hash_defweak))
5259 {
5260 /* If glibc supports an optimized __tls_get_addr call stub,
5261 signalled by the presence of __tls_get_addr_opt, and we'll
5262 be calling __tls_get_addr via a plt call stub, then
5263 make __tls_get_addr point to __tls_get_addr_opt. */
5264 tga = htab->tls_get_addr;
5265 if (htab->elf.dynamic_sections_created
5266 && tga != NULL
5267 && (tga->type == STT_FUNC
5268 || tga->needs_plt)
5269 && !(SYMBOL_CALLS_LOCAL (info, tga)
5270 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5271 && tga->root.type == bfd_link_hash_undefweak)))
5272 {
5273 struct plt_entry *ent;
32af9f6e
AM
5274 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5275 if (ent->plt.refcount > 0)
5276 break;
5277 if (ent != NULL)
a7f2871e
AM
5278 {
5279 tga->root.type = bfd_link_hash_indirect;
5280 tga->root.u.i.link = &opt->root;
5281 ppc_elf_copy_indirect_symbol (info, opt, tga);
3bd43ebc 5282 opt->forced_local = 0;
a7f2871e
AM
5283 if (opt->dynindx != -1)
5284 {
5285 /* Use __tls_get_addr_opt in dynamic relocations. */
5286 opt->dynindx = -1;
5287 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5288 opt->dynstr_index);
5289 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5290 return FALSE;
5291 }
5292 htab->tls_get_addr = opt;
5293 }
5294 }
5295 }
5296 else
5446cbdf 5297 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5298 }
4a3dc543 5299 if (htab->plt_type == PLT_NEW
d7128ce4
AM
5300 && htab->plt != NULL
5301 && htab->plt->output_section != NULL)
5302 {
5303 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5304 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5305 }
5306
25dbc73a 5307 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5308}
5309
3a71aa26
AM
5310/* Return TRUE iff REL is a branch reloc with a global symbol matching
5311 HASH. */
5312
5313static bfd_boolean
5314branch_reloc_hash_match (const bfd *ibfd,
5315 const Elf_Internal_Rela *rel,
5316 const struct elf_link_hash_entry *hash)
5317{
5318 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5319 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5320 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5321
e054468f 5322 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5323 {
5324 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5325 struct elf_link_hash_entry *h;
5326
5327 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5328 while (h->root.type == bfd_link_hash_indirect
5329 || h->root.type == bfd_link_hash_warning)
5330 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5331 if (h == hash)
5332 return TRUE;
5333 }
5334 return FALSE;
5335}
5336
25dbc73a
AM
5337/* Run through all the TLS relocs looking for optimization
5338 opportunities. */
252b5132 5339
25dbc73a
AM
5340bfd_boolean
5341ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5342 struct bfd_link_info *info)
252b5132 5343{
7fce784e 5344 bfd *ibfd;
25dbc73a
AM
5345 asection *sec;
5346 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5347 int pass;
252b5132 5348
3cbc1e5e 5349 if (!bfd_link_executable (info))
25dbc73a 5350 return TRUE;
252b5132 5351
7619e7c7 5352 htab = ppc_elf_hash_table (info);
663a1470
AM
5353 if (htab == NULL)
5354 return FALSE;
5355
b7fcf6f6
AM
5356 /* Make two passes through the relocs. First time check that tls
5357 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5358 followed by such a call. If they are not, don't do any tls
5359 optimization. On the second pass twiddle tls_mask flags to
5360 notify relocate_section that optimization can be done, and
5361 adjust got and plt refcounts. */
b7fcf6f6 5362 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5363 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5364 {
5365 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5366 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5367 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5368
b7fcf6f6
AM
5369 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5370 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5371 {
5372 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5373 int expecting_tls_get_addr = 0;
252b5132 5374
b7fcf6f6
AM
5375 /* Read the relocations. */
5376 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5377 info->keep_memory);
5378 if (relstart == NULL)
5379 return FALSE;
7619e7c7 5380
b7fcf6f6
AM
5381 relend = relstart + sec->reloc_count;
5382 for (rel = relstart; rel < relend; rel++)
5383 {
5384 enum elf_ppc_reloc_type r_type;
5385 unsigned long r_symndx;
5386 struct elf_link_hash_entry *h = NULL;
5387 char *tls_mask;
5388 char tls_set, tls_clear;
5389 bfd_boolean is_local;
b7fcf6f6
AM
5390 bfd_signed_vma *got_count;
5391
5392 r_symndx = ELF32_R_SYM (rel->r_info);
5393 if (r_symndx >= symtab_hdr->sh_info)
5394 {
5395 struct elf_link_hash_entry **sym_hashes;
7fce784e 5396
b7fcf6f6
AM
5397 sym_hashes = elf_sym_hashes (ibfd);
5398 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5399 while (h->root.type == bfd_link_hash_indirect
5400 || h->root.type == bfd_link_hash_warning)
5401 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5402 }
7619e7c7 5403
b7fcf6f6
AM
5404 is_local = FALSE;
5405 if (h == NULL
5406 || !h->def_dynamic)
5407 is_local = TRUE;
7619e7c7 5408
b7fcf6f6 5409 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5410 /* If this section has old-style __tls_get_addr calls
5411 without marker relocs, then check that each
5412 __tls_get_addr call reloc is preceded by a reloc
5413 that conceivably belongs to the __tls_get_addr arg
5414 setup insn. If we don't find matching arg setup
5415 relocs, don't do any tls optimization. */
5416 if (pass == 0
5417 && sec->has_tls_get_addr_call
5418 && h != NULL
5419 && h == htab->tls_get_addr
5420 && !expecting_tls_get_addr
5421 && is_branch_reloc (r_type))
5422 {
25f53a85 5423 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5424 "TLS optimization disabled\n",
5425 ibfd, sec, rel->r_offset);
5426 if (elf_section_data (sec)->relocs != relstart)
5427 free (relstart);
5428 return TRUE;
5429 }
5430
5431 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5432 switch (r_type)
5433 {
5434 case R_PPC_GOT_TLSLD16:
5435 case R_PPC_GOT_TLSLD16_LO:
5436 expecting_tls_get_addr = 1;
1a0670f3 5437 /* Fall through. */
b7fcf6f6
AM
5438
5439 case R_PPC_GOT_TLSLD16_HI:
5440 case R_PPC_GOT_TLSLD16_HA:
5441 /* These relocs should never be against a symbol
5442 defined in a shared lib. Leave them alone if
5443 that turns out to be the case. */
5444 if (!is_local)
5445 continue;
5446
5447 /* LD -> LE */
5448 tls_set = 0;
5449 tls_clear = TLS_LD;
5450 break;
5451
5452 case R_PPC_GOT_TLSGD16:
5453 case R_PPC_GOT_TLSGD16_LO:
5454 expecting_tls_get_addr = 1;
1a0670f3 5455 /* Fall through. */
b7fcf6f6
AM
5456
5457 case R_PPC_GOT_TLSGD16_HI:
5458 case R_PPC_GOT_TLSGD16_HA:
5459 if (is_local)
5460 /* GD -> LE */
5461 tls_set = 0;
5462 else
5463 /* GD -> IE */
5464 tls_set = TLS_TLS | TLS_TPRELGD;
5465 tls_clear = TLS_GD;
5466 break;
5467
5468 case R_PPC_GOT_TPREL16:
5469 case R_PPC_GOT_TPREL16_LO:
5470 case R_PPC_GOT_TPREL16_HI:
5471 case R_PPC_GOT_TPREL16_HA:
5472 if (is_local)
5473 {
5474 /* IE -> LE */
5475 tls_set = 0;
5476 tls_clear = TLS_TPREL;
5477 break;
5478 }
5479 else
5480 continue;
5481
32af9f6e
AM
5482 case R_PPC_TLSGD:
5483 case R_PPC_TLSLD:
5484 expecting_tls_get_addr = 2;
5485 tls_set = 0;
5486 tls_clear = 0;
5487 break;
5488
b7fcf6f6 5489 default:
25dbc73a 5490 continue;
b7fcf6f6 5491 }
25dbc73a 5492
b7fcf6f6
AM
5493 if (pass == 0)
5494 {
727fc41e 5495 if (!expecting_tls_get_addr
32af9f6e
AM
5496 || (expecting_tls_get_addr == 1
5497 && !sec->has_tls_get_addr_call))
b7fcf6f6 5498 continue;
25dbc73a 5499
3a71aa26
AM
5500 if (rel + 1 < relend
5501 && branch_reloc_hash_match (ibfd, rel + 1,
5502 htab->tls_get_addr))
5503 continue;
25dbc73a 5504
b7fcf6f6
AM
5505 /* Uh oh, we didn't find the expected call. We
5506 could just mark this symbol to exclude it
5507 from tls optimization but it's safer to skip
663a1470 5508 the entire optimization. */
25f53a85 5509 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5510 "TLS optimization disabled\n"),
5511 ibfd, sec, rel->r_offset);
5512 if (elf_section_data (sec)->relocs != relstart)
5513 free (relstart);
5514 return TRUE;
b7fcf6f6 5515 }
25dbc73a 5516
32af9f6e
AM
5517 if (expecting_tls_get_addr)
5518 {
5519 struct plt_entry *ent;
5520 bfd_vma addend = 0;
5521
0e1862bb 5522 if (bfd_link_pic (info)
32af9f6e
AM
5523 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5524 addend = rel[1].r_addend;
5525 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5526 got2, addend);
5527 if (ent != NULL && ent->plt.refcount > 0)
5528 ent->plt.refcount -= 1;
5529
5530 if (expecting_tls_get_addr == 2)
5531 continue;
5532 }
5533
b7fcf6f6
AM
5534 if (h != NULL)
5535 {
5536 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5537 got_count = &h->got.refcount;
5538 }
5539 else
5540 {
b7fcf6f6 5541 bfd_signed_vma *lgot_refs;
e054468f 5542 struct plt_entry **local_plt;
b7fcf6f6 5543 char *lgot_masks;
25dbc73a 5544
b7fcf6f6
AM
5545 if (locsyms == NULL)
5546 {
5547 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5548 if (locsyms == NULL)
5549 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5550 symtab_hdr->sh_info,
5551 0, NULL, NULL, NULL);
5552 if (locsyms == NULL)
5553 {
5554 if (elf_section_data (sec)->relocs != relstart)
5555 free (relstart);
5556 return FALSE;
5557 }
5558 }
b7fcf6f6
AM
5559 lgot_refs = elf_local_got_refcounts (ibfd);
5560 if (lgot_refs == NULL)
5561 abort ();
e054468f
AM
5562 local_plt = (struct plt_entry **)
5563 (lgot_refs + symtab_hdr->sh_info);
5564 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5565 tls_mask = &lgot_masks[r_symndx];
5566 got_count = &lgot_refs[r_symndx];
5567 }
25dbc73a 5568
b7fcf6f6
AM
5569 if (tls_set == 0)
5570 {
5571 /* We managed to get rid of a got entry. */
5572 if (*got_count > 0)
5573 *got_count -= 1;
5574 }
25dbc73a 5575
b7fcf6f6
AM
5576 *tls_mask |= tls_set;
5577 *tls_mask &= ~tls_clear;
5578 }
25dbc73a 5579
b7fcf6f6
AM
5580 if (elf_section_data (sec)->relocs != relstart)
5581 free (relstart);
5582 }
5583
5584 if (locsyms != NULL
5585 && (symtab_hdr->contents != (unsigned char *) locsyms))
5586 {
5587 if (!info->keep_memory)
5588 free (locsyms);
5589 else
5590 symtab_hdr->contents = (unsigned char *) locsyms;
5591 }
5592 }
25dbc73a
AM
5593 return TRUE;
5594}
5595\f
625af618
AM
5596/* Return true if we have dynamic relocs that apply to read-only sections. */
5597
5598static bfd_boolean
5599readonly_dynrelocs (struct elf_link_hash_entry *h)
5600{
6061a67d 5601 struct elf_dyn_relocs *p;
625af618
AM
5602
5603 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5604 {
5605 asection *s = p->sec->output_section;
5606
5607 if (s != NULL
5608 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5609 == (SEC_READONLY | SEC_ALLOC)))
5610 return TRUE;
5611 }
5612 return FALSE;
5613}
5614
25dbc73a
AM
5615/* Adjust a symbol defined by a dynamic object and referenced by a
5616 regular object. The current definition is in some section of the
5617 dynamic object, but we're not including those sections. We have to
5618 change the definition to something the rest of the link can
5619 understand. */
7fce784e 5620
25dbc73a
AM
5621static bfd_boolean
5622ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5623 struct elf_link_hash_entry *h)
5624{
5625 struct ppc_elf_link_hash_table *htab;
5626 asection *s;
7fce784e 5627
25dbc73a
AM
5628#ifdef DEBUG
5629 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5630 h->root.root.string);
5631#endif
252b5132 5632
25dbc73a
AM
5633 /* Make sure we know what is going on here. */
5634 htab = ppc_elf_hash_table (info);
5635 BFD_ASSERT (htab->elf.dynobj != NULL
5636 && (h->needs_plt
91e21fb7 5637 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5638 || h->u.weakdef != NULL
5639 || (h->def_dynamic
5640 && h->ref_regular
5641 && !h->def_regular)));
252b5132 5642
25dbc73a
AM
5643 /* Deal with function syms. */
5644 if (h->type == STT_FUNC
e054468f 5645 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5646 || h->needs_plt)
5647 {
5648 /* Clear procedure linkage table information for any symbol that
5649 won't need a .plt entry. */
a6aa5195
AM
5650 struct plt_entry *ent;
5651 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5652 if (ent->plt.refcount > 0)
5653 break;
5654 if (ent == NULL
e054468f
AM
5655 || (h->type != STT_GNU_IFUNC
5656 && (SYMBOL_CALLS_LOCAL (info, h)
5657 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5658 && h->root.type == bfd_link_hash_undefweak))))
252b5132 5659 {
25dbc73a 5660 /* A PLT entry is not required/allowed when:
252b5132 5661
25dbc73a
AM
5662 1. We are not using ld.so; because then the PLT entry
5663 can't be set up, so we can't use one. In this case,
5664 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5665
25dbc73a
AM
5666 2. GC has rendered the entry unused.
5667
5668 3. We know for certain that a call to this symbol
5669 will go to this object, or will remain undefined. */
a6aa5195 5670 h->plt.plist = NULL;
25dbc73a 5671 h->needs_plt = 0;
d1eca1e4 5672 h->pointer_equality_needed = 0;
25dbc73a 5673 }
625af618
AM
5674 else
5675 {
d1eca1e4
AM
5676 /* Taking a function's address in a read/write section
5677 doesn't require us to define the function symbol in the
1009ef28 5678 executable on a plt call stub. A dynamic reloc can
d1eca1e4
AM
5679 be used instead. */
5680 if (h->pointer_equality_needed
1009ef28
AM
5681 && h->type != STT_GNU_IFUNC
5682 && !htab->is_vxworks
5683 && !ppc_elf_hash_entry (h)->has_sda_refs
d1eca1e4
AM
5684 && !readonly_dynrelocs (h))
5685 {
5686 h->pointer_equality_needed = 0;
5687 h->non_got_ref = 0;
5688 }
5689
25f23106
AM
5690 /* After adjust_dynamic_symbol, non_got_ref set in the
5691 non-shared case means that we have allocated space in
5692 .dynbss for the symbol and thus dyn_relocs for this
5693 symbol should be discarded.
625af618
AM
5694 If we get here we know we are making a PLT entry for this
5695 symbol, and in an executable we'd normally resolve
5696 relocations against this symbol to the PLT entry. Allow
5697 dynamic relocs if the reference is weak, and the dynamic
5698 relocs will not cause text relocation. */
d1eca1e4
AM
5699 else if (!h->ref_regular_nonweak
5700 && h->non_got_ref
5701 && h->type != STT_GNU_IFUNC
5702 && !htab->is_vxworks
5703 && !ppc_elf_hash_entry (h)->has_sda_refs
5704 && !readonly_dynrelocs (h))
625af618
AM
5705 h->non_got_ref = 0;
5706 }
d3e454b9 5707 h->protected_def = 0;
25dbc73a 5708 return TRUE;
252b5132 5709 }
25dbc73a 5710 else
a6aa5195 5711 h->plt.plist = NULL;
252b5132 5712
25dbc73a
AM
5713 /* If this is a weak symbol, and there is a real definition, the
5714 processor independent code will have arranged for us to see the
5715 real definition first, and we can just use the same value. */
5716 if (h->u.weakdef != NULL)
252b5132 5717 {
25dbc73a
AM
5718 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5719 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5720 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5721 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5722 if (ELIMINATE_COPY_RELOCS)
5723 h->non_got_ref = h->u.weakdef->non_got_ref;
5724 return TRUE;
5725 }
dc810e39 5726
25dbc73a
AM
5727 /* This is a reference to a symbol defined by a dynamic object which
5728 is not a function. */
252b5132 5729
25dbc73a
AM
5730 /* If we are creating a shared library, we must presume that the
5731 only references to the symbol are via the global offset table.
5732 For such cases we need not do anything here; the relocations will
5733 be handled correctly by relocate_section. */
0e1862bb 5734 if (bfd_link_pic (info))
d3e454b9
AM
5735 {
5736 h->protected_def = 0;
5737 return TRUE;
5738 }
252b5132 5739
25dbc73a
AM
5740 /* If there are no references to this symbol that do not use the
5741 GOT, we don't need to generate a copy reloc. */
5742 if (!h->non_got_ref)
d3e454b9
AM
5743 {
5744 h->protected_def = 0;
5745 return TRUE;
5746 }
5747
5748 /* Protected variables do not work with .dynbss. The copy in
5749 .dynbss won't be used by the shared library with the protected
5750 definition for the variable. Editing to PIC, or text relocations
5751 are preferable to an incorrect program. */
5752 if (h->protected_def)
5753 {
5754 if (ELIMINATE_COPY_RELOCS
5755 && ppc_elf_hash_entry (h)->has_addr16_ha
5756 && ppc_elf_hash_entry (h)->has_addr16_lo
5757 && htab->params->pic_fixup == 0
5758 && info->disable_target_specific_optimizations <= 1)
5759 htab->params->pic_fixup = 1;
5760 h->non_got_ref = 0;
5761 return TRUE;
5762 }
25dbc73a 5763
a127494f
AM
5764 /* If -z nocopyreloc was given, we won't generate them either. */
5765 if (info->nocopyreloc)
5766 {
5767 h->non_got_ref = 0;
5768 return TRUE;
5769 }
5770
cfd2c773
NS
5771 /* If we didn't find any dynamic relocs in read-only sections, then
5772 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5773 We can't do this if there are any small data relocations. This
5774 doesn't work on VxWorks, where we can not have dynamic
5775 relocations (other than copy and jump slot relocations) in an
5776 executable. */
4dc4a9a5 5777 if (ELIMINATE_COPY_RELOCS
cfd2c773 5778 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5779 && !htab->is_vxworks
5780 && !h->def_regular
5781 && !readonly_dynrelocs (h))
25dbc73a 5782 {
625af618
AM
5783 h->non_got_ref = 0;
5784 return TRUE;
252b5132
RH
5785 }
5786
25dbc73a
AM
5787 /* We must allocate the symbol in our .dynbss section, which will
5788 become part of the .bss section of the executable. There will be
5789 an entry for this symbol in the .dynsym section. The dynamic
5790 object will contain position independent code, so all references
5791 from the dynamic object to this symbol will go through the global
5792 offset table. The dynamic linker will use the .dynsym entry to
5793 determine the address it must put in the global offset table, so
5794 both the dynamic object and the regular object will refer to the
5795 same memory location for the variable.
5796
4dc4a9a5
DJ
5797 Of course, if the symbol is referenced using SDAREL relocs, we
5798 must instead allocate it in .sbss. */
25dbc73a 5799
4dc4a9a5 5800 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5801 s = htab->dynsbss;
5802 else
5803 s = htab->dynbss;
5804 BFD_ASSERT (s != NULL);
5805
5806 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5807 copy the initial value out of the dynamic object and into the
5808 runtime process image. We need to remember the offset into the
5809 .rela.bss section we are going to use. */
1d7e9d18 5810 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5811 {
5812 asection *srel;
5813
4dc4a9a5 5814 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5815 srel = htab->relsbss;
5816 else
5817 srel = htab->relbss;
5818 BFD_ASSERT (srel != NULL);
5819 srel->size += sizeof (Elf32_External_Rela);
5820 h->needs_copy = 1;
5821 }
7619e7c7 5822
6cabe1ea 5823 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5824}
5825\f
ac39eb42
AM
5826/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5827 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5828 specifying the addend on the plt relocation. For -fpic code, the sym
5829 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5830 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5831
5832static bfd_boolean
5833add_stub_sym (struct plt_entry *ent,
5834 struct elf_link_hash_entry *h,
ac39eb42 5835 struct bfd_link_info *info)
0ba07910
AM
5836{
5837 struct elf_link_hash_entry *sh;
5838 size_t len1, len2, len3;
5839 char *name;
ac39eb42
AM
5840 const char *stub;
5841 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5842
0e1862bb 5843 if (bfd_link_pic (info))
ac39eb42
AM
5844 stub = ".plt_pic32.";
5845 else
5846 stub = ".plt_call32.";
0ba07910
AM
5847
5848 len1 = strlen (h->root.root.string);
ac39eb42 5849 len2 = strlen (stub);
0ba07910
AM
5850 len3 = 0;
5851 if (ent->sec)
5852 len3 = strlen (ent->sec->name);
ac39eb42 5853 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5854 if (name == NULL)
5855 return FALSE;
5856 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5857 if (ent->sec)
5858 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5859 memcpy (name + 8 + len3, stub, len2);
5860 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5861 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5862 if (sh == NULL)
5863 return FALSE;
5864 if (sh->root.type == bfd_link_hash_new)
5865 {
5866 sh->root.type = bfd_link_hash_defined;
5867 sh->root.u.def.section = htab->glink;
5868 sh->root.u.def.value = ent->glink_offset;
5869 sh->ref_regular = 1;
5870 sh->def_regular = 1;
5871 sh->ref_regular_nonweak = 1;
5872 sh->forced_local = 1;
5873 sh->non_elf = 0;
2ec55de3 5874 sh->root.linker_def = 1;
0ba07910
AM
5875 }
5876 return TRUE;
5877}
5878
3b36f7e6
AM
5879/* Allocate NEED contiguous space in .got, and return the offset.
5880 Handles allocation of the got header when crossing 32k. */
5881
5882static bfd_vma
5883allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5884{
5885 bfd_vma where;
4a3dc543 5886 unsigned int max_before_header;
3b36f7e6 5887
4a3dc543 5888 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB
5889 {
5890 where = htab->got->size;
5891 htab->got->size += need;
5892 }
3b36f7e6
AM
5893 else
5894 {
4a3dc543
RS
5895 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5896 if (need <= htab->got_gap)
3b36f7e6 5897 {
4a3dc543
RS
5898 where = max_before_header - htab->got_gap;
5899 htab->got_gap -= need;
5900 }
5901 else
5902 {
5903 if (htab->got->size + need > max_before_header
5904 && htab->got->size <= max_before_header)
5905 {
5906 htab->got_gap = max_before_header - htab->got->size;
5907 htab->got->size = max_before_header + htab->got_header_size;
5908 }
5909 where = htab->got->size;
5910 htab->got->size += need;
3b36f7e6 5911 }
3b36f7e6
AM
5912 }
5913 return where;
5914}
5915
25dbc73a 5916/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5917
b34976b6 5918static bfd_boolean
25dbc73a 5919allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5920{
25dbc73a
AM
5921 struct bfd_link_info *info = inf;
5922 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5923 struct ppc_elf_link_hash_table *htab;
6061a67d 5924 struct elf_dyn_relocs *p;
252b5132 5925
25dbc73a 5926 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5927 return TRUE;
252b5132 5928
7619e7c7 5929 htab = ppc_elf_hash_table (info);
e054468f
AM
5930 if (htab->elf.dynamic_sections_created
5931 || h->type == STT_GNU_IFUNC)
252b5132 5932 {
a6aa5195
AM
5933 struct plt_entry *ent;
5934 bfd_boolean doneone = FALSE;
28e99bb6 5935 bfd_vma plt_offset = 0, glink_offset = 0;
e054468f 5936 bfd_boolean dyn;
28e99bb6 5937
a6aa5195
AM
5938 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5939 if (ent->plt.refcount > 0)
5940 {
5941 /* Make sure this symbol is output as a dynamic symbol. */
5942 if (h->dynindx == -1
e054468f
AM
5943 && !h->forced_local
5944 && !h->def_regular
5945 && htab->elf.dynamic_sections_created)
a6aa5195
AM
5946 {
5947 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5948 return FALSE;
5949 }
252b5132 5950
e054468f 5951 dyn = htab->elf.dynamic_sections_created;
0e1862bb 5952 if (bfd_link_pic (info)
e054468f
AM
5953 || h->type == STT_GNU_IFUNC
5954 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
a6aa5195
AM
5955 {
5956 asection *s = htab->plt;
25f23106 5957 if (!dyn || h->dynindx == -1)
e054468f 5958 s = htab->iplt;
7619e7c7 5959
25f23106 5960 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
a6aa5195 5961 {
a6aa5195 5962 if (!doneone)
28e99bb6
AM
5963 {
5964 plt_offset = s->size;
5965 s->size += 4;
5966 }
5967 ent->plt.offset = plt_offset;
d7128ce4 5968
a6aa5195 5969 s = htab->glink;
0e1862bb 5970 if (!doneone || bfd_link_pic (info))
28e99bb6
AM
5971 {
5972 glink_offset = s->size;
5973 s->size += GLINK_ENTRY_SIZE;
a7f2871e 5974 if (h == htab->tls_get_addr
5446cbdf 5975 && !htab->params->no_tls_get_addr_opt)
a7f2871e 5976 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
28e99bb6
AM
5977 }
5978 if (!doneone
0e1862bb 5979 && !bfd_link_pic (info)
625af618 5980 && h->def_dynamic
a6aa5195
AM
5981 && !h->def_regular)
5982 {
5983 h->root.u.def.section = s;
28e99bb6 5984 h->root.u.def.value = glink_offset;
a6aa5195 5985 }
28e99bb6 5986 ent->glink_offset = glink_offset;
0ba07910 5987
5446cbdf 5988 if (htab->params->emit_stub_syms
ac39eb42 5989 && !add_stub_sym (ent, h, info))
0ba07910 5990 return FALSE;
a6aa5195
AM
5991 }
5992 else
5993 {
a6aa5195
AM
5994 if (!doneone)
5995 {
28e99bb6
AM
5996 /* If this is the first .plt entry, make room
5997 for the special first entry. */
5998 if (s->size == 0)
9d8504b1 5999 s->size += htab->plt_initial_entry_size;
28e99bb6
AM
6000
6001 /* The PowerPC PLT is actually composed of two
6002 parts, the first part is 2 words (for a load
6003 and a jump), and then there is a remaining
6004 word available at the end. */
9d8504b1
PB
6005 plt_offset = (htab->plt_initial_entry_size
6006 + (htab->plt_slot_size
6007 * ((s->size
6008 - htab->plt_initial_entry_size)
6009 / htab->plt_entry_size)));
28e99bb6
AM
6010
6011 /* If this symbol is not defined in a regular
6012 file, and we are not generating a shared
5b914448 6013 library, then set the symbol to this location
de972ffa
AM
6014 in the .plt. This is to avoid text
6015 relocations, and is required to make
28e99bb6
AM
6016 function pointers compare as equal between
6017 the normal executable and the shared library. */
0e1862bb 6018 if (! bfd_link_pic (info)
625af618 6019 && h->def_dynamic
28e99bb6
AM
6020 && !h->def_regular)
6021 {
6022 h->root.u.def.section = s;
6023 h->root.u.def.value = plt_offset;
6024 }
6025
9d8504b1
PB
6026 /* Make room for this entry. */
6027 s->size += htab->plt_entry_size;
6028 /* After the 8192nd entry, room for two entries
6029 is allocated. */
4a3dc543 6030 if (htab->plt_type == PLT_OLD
9d8504b1
PB
6031 && (s->size - htab->plt_initial_entry_size)
6032 / htab->plt_entry_size
6033 > PLT_NUM_SINGLE_ENTRIES)
6034 s->size += htab->plt_entry_size;
a6aa5195 6035 }
28e99bb6 6036 ent->plt.offset = plt_offset;
a6aa5195 6037 }
25dbc73a 6038
a6aa5195
AM
6039 /* We also need to make an entry in the .rela.plt section. */
6040 if (!doneone)
6041 {
25f23106
AM
6042 if (!htab->elf.dynamic_sections_created
6043 || h->dynindx == -1)
e054468f
AM
6044 htab->reliplt->size += sizeof (Elf32_External_Rela);
6045 else
9d8504b1 6046 {
e054468f
AM
6047 htab->relplt->size += sizeof (Elf32_External_Rela);
6048
6049 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 6050 {
e054468f 6051 /* Allocate space for the unloaded relocations. */
0e1862bb 6052 if (!bfd_link_pic (info)
e054468f 6053 && htab->elf.dynamic_sections_created)
9d8504b1 6054 {
e054468f
AM
6055 if (ent->plt.offset
6056 == (bfd_vma) htab->plt_initial_entry_size)
6057 {
6058 htab->srelplt2->size
6059 += (sizeof (Elf32_External_Rela)
6060 * VXWORKS_PLTRESOLVE_RELOCS);
6061 }
6062
9d8504b1 6063 htab->srelplt2->size
e054468f
AM
6064 += (sizeof (Elf32_External_Rela)
6065 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
9d8504b1
PB
6066 }
6067
e054468f
AM
6068 /* Every PLT entry has an associated GOT entry in
6069 .got.plt. */
6070 htab->sgotplt->size += 4;
9d8504b1 6071 }
9d8504b1 6072 }
a6aa5195
AM
6073 doneone = TRUE;
6074 }
6075 }
6076 else
6077 ent->plt.offset = (bfd_vma) -1;
a6aa5195 6078 }
2ce859a1
AM
6079 else
6080 ent->plt.offset = (bfd_vma) -1;
6081
6082 if (!doneone)
6083 {
6084 h->plt.plist = NULL;
6085 h->needs_plt = 0;
6086 }
25dbc73a
AM
6087 }
6088 else
6089 {
a6aa5195 6090 h->plt.plist = NULL;
25dbc73a
AM
6091 h->needs_plt = 0;
6092 }
6093
6094 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
6095 if (eh->elf.got.refcount > 0
6096 || (ELIMINATE_COPY_RELOCS
6097 && !eh->elf.def_regular
6098 && eh->elf.protected_def
6099 && eh->has_addr16_ha
6100 && eh->has_addr16_lo
6101 && htab->params->pic_fixup > 0))
25dbc73a 6102 {
d6e14abc
AM
6103 bfd_boolean dyn;
6104 unsigned int need;
6105
25dbc73a
AM
6106 /* Make sure this symbol is output as a dynamic symbol. */
6107 if (eh->elf.dynindx == -1
b099ab9f 6108 && !eh->elf.forced_local
25f23106 6109 && eh->elf.type != STT_GNU_IFUNC
b099ab9f 6110 && htab->elf.dynamic_sections_created)
25dbc73a
AM
6111 {
6112 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 6113 return FALSE;
25dbc73a 6114 }
252b5132 6115
d6e14abc
AM
6116 need = 0;
6117 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 6118 {
d6e14abc 6119 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 6120 {
d6e14abc
AM
6121 if (!eh->elf.def_dynamic)
6122 /* We'll just use htab->tlsld_got.offset. This should
6123 always be the case. It's a little odd if we have
6124 a local dynamic reloc against a non-local symbol. */
6125 htab->tlsld_got.refcount += 1;
6126 else
3b36f7e6 6127 need += 8;
252b5132 6128 }
d6e14abc
AM
6129 if ((eh->tls_mask & TLS_GD) != 0)
6130 need += 8;
6131 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
6132 need += 4;
6133 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 6134 need += 4;
d6e14abc
AM
6135 }
6136 else
6137 need += 4;
6138 if (need == 0)
6139 eh->elf.got.offset = (bfd_vma) -1;
6140 else
6141 {
3b36f7e6 6142 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a 6143 dyn = htab->elf.dynamic_sections_created;
0e1862bb 6144 if ((bfd_link_pic (info)
25dbc73a
AM
6145 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
6146 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
6147 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 6148 {
91e21fb7 6149 asection *rsec = htab->relgot;
0bed072f
AM
6150
6151 if (eh->elf.type == STT_GNU_IFUNC)
6152 rsec = htab->reliplt;
3b36f7e6
AM
6153 /* All the entries we allocated need relocs.
6154 Except LD only needs one. */
d6e14abc
AM
6155 if ((eh->tls_mask & TLS_LD) != 0
6156 && eh->elf.def_dynamic)
3b36f7e6 6157 need -= 4;
25f23106 6158 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 6159 }
25dbc73a
AM
6160 }
6161 }
6162 else
6163 eh->elf.got.offset = (bfd_vma) -1;
252b5132 6164
b099ab9f 6165 if (eh->dyn_relocs == NULL
de972ffa 6166 || !htab->elf.dynamic_sections_created)
25dbc73a 6167 return TRUE;
252b5132 6168
25dbc73a
AM
6169 /* In the shared -Bsymbolic case, discard space allocated for
6170 dynamic pc-relative relocs against symbols which turn out to be
6171 defined in regular objects. For the normal shared case, discard
6172 space for relocs that have become local due to symbol visibility
6173 changes. */
6174
0e1862bb 6175 if (bfd_link_pic (info))
25dbc73a
AM
6176 {
6177 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 6178 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
6179 generated via assembly. We want calls to protected symbols to
6180 resolve directly to the function rather than going via the plt.
6181 If people want function pointer comparisons to work as expected
6182 then they should avoid writing weird assembly. */
6183 if (SYMBOL_CALLS_LOCAL (info, h))
6184 {
6061a67d 6185 struct elf_dyn_relocs **pp;
25dbc73a
AM
6186
6187 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 6188 {
25dbc73a
AM
6189 p->count -= p->pc_count;
6190 p->pc_count = 0;
6191 if (p->count == 0)
6192 *pp = p->next;
6193 else
6194 pp = &p->next;
252b5132 6195 }
25dbc73a 6196 }
252b5132 6197
3348747a
NS
6198 if (htab->is_vxworks)
6199 {
6061a67d 6200 struct elf_dyn_relocs **pp;
3348747a
NS
6201
6202 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6203 {
6204 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6205 *pp = p->next;
6206 else
6207 pp = &p->next;
6208 }
6209 }
6210
89200bf8
AM
6211 /* Discard relocs on undefined symbols that must be local. */
6212 if (eh->dyn_relocs != NULL
6213 && h->root.type == bfd_link_hash_undefined
6214 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6215 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6216 eh->dyn_relocs = NULL;
6217
25dbc73a
AM
6218 /* Also discard relocs on undefined weak syms with non-default
6219 visibility. */
cab87ef9
AM
6220 if (eh->dyn_relocs != NULL
6221 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 6222 {
dfbb6ac9
AM
6223 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6224 eh->dyn_relocs = NULL;
6225
6226 /* Make sure undefined weak symbols are output as a dynamic
6227 symbol in PIEs. */
6228 else if (h->dynindx == -1
e054468f
AM
6229 && !h->forced_local
6230 && !h->def_regular)
dfbb6ac9
AM
6231 {
6232 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6233 return FALSE;
6234 }
25dbc73a
AM
6235 }
6236 }
6237 else if (ELIMINATE_COPY_RELOCS)
6238 {
6239 /* For the non-shared case, discard space for relocs against
6240 symbols which turn out to need copy relocs or are not
6241 dynamic. */
7619e7c7 6242
25dbc73a 6243 if (!h->non_got_ref
d3e454b9
AM
6244 && !h->def_regular
6245 && !(h->protected_def
6246 && eh->has_addr16_ha
6247 && eh->has_addr16_lo
6248 && htab->params->pic_fixup > 0))
25dbc73a
AM
6249 {
6250 /* Make sure this symbol is output as a dynamic symbol.
6251 Undefined weak syms won't yet be marked as dynamic. */
6252 if (h->dynindx == -1
25f23106 6253 && !h->forced_local)
25dbc73a
AM
6254 {
6255 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6256 return FALSE;
6257 }
7619e7c7 6258
25dbc73a
AM
6259 /* If that succeeded, we know we'll be keeping all the
6260 relocs. */
6261 if (h->dynindx != -1)
6262 goto keep;
6263 }
252b5132 6264
25dbc73a 6265 eh->dyn_relocs = NULL;
252b5132 6266
25dbc73a
AM
6267 keep: ;
6268 }
252b5132 6269
25dbc73a
AM
6270 /* Finally, allocate space. */
6271 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6272 {
6273 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6274 if (eh->elf.type == STT_GNU_IFUNC)
25f23106 6275 sreloc = htab->reliplt;
25dbc73a
AM
6276 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6277 }
252b5132 6278
25dbc73a
AM
6279 return TRUE;
6280}
7619e7c7 6281
625af618
AM
6282/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6283 read-only sections. */
7619e7c7 6284
25dbc73a 6285static bfd_boolean
625af618 6286maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 6287{
25dbc73a
AM
6288 if (h->root.type == bfd_link_hash_indirect)
6289 return TRUE;
252b5132 6290
625af618 6291 if (readonly_dynrelocs (h))
25dbc73a 6292 {
625af618 6293 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 6294
625af618
AM
6295 /* Not an error, just cut short the traversal. */
6296 return FALSE;
25dbc73a
AM
6297 }
6298 return TRUE;
6299}
6300
6177242a
AM
6301static const unsigned char glink_eh_frame_cie[] =
6302{
6303 0, 0, 0, 16, /* length. */
6304 0, 0, 0, 0, /* id. */
6305 1, /* CIE version. */
6306 'z', 'R', 0, /* Augmentation string. */
6307 4, /* Code alignment. */
6308 0x7c, /* Data alignment. */
6309 65, /* RA reg. */
6310 1, /* Augmentation size. */
6311 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6312 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6313};
6314
25dbc73a
AM
6315/* Set the sizes of the dynamic sections. */
6316
6317static bfd_boolean
93d1b056 6318ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6319 struct bfd_link_info *info)
6320{
6321 struct ppc_elf_link_hash_table *htab;
6322 asection *s;
6323 bfd_boolean relocs;
6324 bfd *ibfd;
7fce784e 6325
252b5132 6326#ifdef DEBUG
25dbc73a 6327 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6328#endif
252b5132 6329
25dbc73a
AM
6330 htab = ppc_elf_hash_table (info);
6331 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6332
25dbc73a
AM
6333 if (elf_hash_table (info)->dynamic_sections_created)
6334 {
6335 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6336 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6337 {
3d4d4302 6338 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6339 BFD_ASSERT (s != NULL);
6340 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6341 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6342 }
6343 }
252b5132 6344
4a3dc543 6345 if (htab->plt_type == PLT_OLD)
d7128ce4 6346 htab->got_header_size = 16;
4a3dc543 6347 else if (htab->plt_type == PLT_NEW)
d7128ce4 6348 htab->got_header_size = 12;
252b5132 6349
25dbc73a
AM
6350 /* Set up .got offsets for local syms, and space for local dynamic
6351 relocs. */
c72f2fb2 6352 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6353 {
6354 bfd_signed_vma *local_got;
6355 bfd_signed_vma *end_local_got;
e054468f
AM
6356 struct plt_entry **local_plt;
6357 struct plt_entry **end_local_plt;
25dbc73a
AM
6358 char *lgot_masks;
6359 bfd_size_type locsymcount;
6360 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6361
0c8d6e5c 6362 if (!is_ppc_elf (ibfd))
25dbc73a 6363 continue;
7fce784e 6364
25dbc73a
AM
6365 for (s = ibfd->sections; s != NULL; s = s->next)
6366 {
f95f8542 6367 struct ppc_dyn_relocs *p;
252b5132 6368
f95f8542 6369 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6370 elf_section_data (s)->local_dynrel);
6371 p != NULL;
6372 p = p->next)
6373 {
6374 if (!bfd_is_abs_section (p->sec)
6375 && bfd_is_abs_section (p->sec->output_section))
6376 {
6377 /* Input section has been discarded, either because
6378 it is a copy of a linkonce section or due to
6379 linker script /DISCARD/, so we'll be discarding
6380 the relocs too. */
7fce784e 6381 }
3348747a
NS
6382 else if (htab->is_vxworks
6383 && strcmp (p->sec->output_section->name,
6384 ".tls_vars") == 0)
6385 {
6386 /* Relocations in vxworks .tls_vars sections are
6387 handled specially by the loader. */
6388 }
25dbc73a 6389 else if (p->count != 0)
7fce784e 6390 {
25f23106 6391 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6392 if (p->ifunc)
25f23106
AM
6393 sreloc = htab->reliplt;
6394 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6395 if ((p->sec->output_section->flags
6396 & (SEC_READONLY | SEC_ALLOC))
6397 == (SEC_READONLY | SEC_ALLOC))
6398 info->flags |= DF_TEXTREL;
7fce784e 6399 }
252b5132 6400 }
252b5132 6401 }
252b5132 6402
25dbc73a
AM
6403 local_got = elf_local_got_refcounts (ibfd);
6404 if (!local_got)
6405 continue;
252b5132 6406
0ffa91dd 6407 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6408 locsymcount = symtab_hdr->sh_info;
6409 end_local_got = local_got + locsymcount;
e054468f
AM
6410 local_plt = (struct plt_entry **) end_local_got;
6411 end_local_plt = local_plt + locsymcount;
6412 lgot_masks = (char *) end_local_plt;
91d6fa6a 6413
25dbc73a
AM
6414 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6415 if (*local_got > 0)
6416 {
d6e14abc
AM
6417 unsigned int need = 0;
6418 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6419 {
d6e14abc
AM
6420 if ((*lgot_masks & TLS_GD) != 0)
6421 need += 8;
6422 if ((*lgot_masks & TLS_LD) != 0)
6423 htab->tlsld_got.refcount += 1;
6424 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6425 need += 4;
6426 if ((*lgot_masks & TLS_DTPREL) != 0)
6427 need += 4;
25dbc73a 6428 }
d6e14abc
AM
6429 else
6430 need += 4;
6431 if (need == 0)
6432 *local_got = (bfd_vma) -1;
25dbc73a
AM
6433 else
6434 {
3b36f7e6 6435 *local_got = allocate_got (htab, need);
0e1862bb 6436 if (bfd_link_pic (info))
0bed072f
AM
6437 {
6438 asection *srel = htab->relgot;
6439 if ((*lgot_masks & PLT_IFUNC) != 0)
6440 srel = htab->reliplt;
6441 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6442 }
25dbc73a
AM
6443 }
6444 }
6445 else
6446 *local_got = (bfd_vma) -1;
e054468f
AM
6447
6448 if (htab->is_vxworks)
6449 continue;
6450
6451 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6452 for (; local_plt < end_local_plt; ++local_plt)
6453 {
6454 struct plt_entry *ent;
6455 bfd_boolean doneone = FALSE;
6456 bfd_vma plt_offset = 0, glink_offset = 0;
6457
6458 for (ent = *local_plt; ent != NULL; ent = ent->next)
6459 if (ent->plt.refcount > 0)
6460 {
91d6fa6a 6461 s = htab->iplt;
e054468f
AM
6462
6463 if (!doneone)
6464 {
6465 plt_offset = s->size;
6466 s->size += 4;
6467 }
6468 ent->plt.offset = plt_offset;
6469
6470 s = htab->glink;
0e1862bb 6471 if (!doneone || bfd_link_pic (info))
e054468f
AM
6472 {
6473 glink_offset = s->size;
6474 s->size += GLINK_ENTRY_SIZE;
6475 }
6476 ent->glink_offset = glink_offset;
6477
6478 if (!doneone)
6479 {
25f23106 6480 htab->reliplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6481 doneone = TRUE;
6482 }
6483 }
6484 else
6485 ent->plt.offset = (bfd_vma) -1;
6486 }
25dbc73a 6487 }
252b5132 6488
b7fcf6f6
AM
6489 /* Allocate space for global sym dynamic relocs. */
6490 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6491
3b36f7e6
AM
6492 if (htab->tlsld_got.refcount > 0)
6493 {
6494 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6495 if (bfd_link_pic (info))
3b36f7e6
AM
6496 htab->relgot->size += sizeof (Elf32_External_Rela);
6497 }
6498 else
6499 htab->tlsld_got.offset = (bfd_vma) -1;
6500
4a3dc543 6501 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6502 {
6503 unsigned int g_o_t = 32768;
6504
4d962050
AM
6505 /* If we haven't allocated the header, do so now. When we get here,
6506 for old plt/got the got size will be 0 to 32764 (not allocated),
6507 or 32780 to 65536 (header allocated). For new plt/got, the
6508 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM
6509 if (htab->got->size <= 32768)
6510 {
6511 g_o_t = htab->got->size;
4a3dc543 6512 if (htab->plt_type == PLT_OLD)
4d962050 6513 g_o_t += 4;
3b36f7e6
AM
6514 htab->got->size += htab->got_header_size;
6515 }
3b36f7e6
AM
6516
6517 htab->elf.hgot->root.u.def.value = g_o_t;
6518 }
0e1862bb 6519 if (bfd_link_pic (info))
bd6c6e2b
AM
6520 {
6521 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6522
6523 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6524 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6525 }
15bfcc77
AM
6526 if (info->emitrelocations)
6527 {
6528 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6529
6530 if (sda != NULL && sda->ref_regular)
6531 sda->root.u.def.section->flags |= SEC_KEEP;
6532 sda = htab->sdata[1].sym;
6533 if (sda != NULL && sda->ref_regular)
6534 sda->root.u.def.section->flags |= SEC_KEEP;
6535 }
3b36f7e6 6536
e054468f
AM
6537 if (htab->glink != NULL
6538 && htab->glink->size != 0
6539 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6540 {
6541 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6542 /* Space for the branch table. ??? We don't need entries for
6543 non-dynamic symbols in this table. This case can arise with
6544 static ifuncs or forced local ifuncs. */
86b9da88
AM
6545 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6546 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6547 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6548 ? 63 : 15);
d7128ce4 6549 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6550
5446cbdf 6551 if (htab->params->emit_stub_syms)
0ba07910
AM
6552 {
6553 struct elf_link_hash_entry *sh;
6554 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6555 TRUE, FALSE, FALSE);
6556 if (sh == NULL)
6557 return FALSE;
6558 if (sh->root.type == bfd_link_hash_new)
6559 {
6560 sh->root.type = bfd_link_hash_defined;
6561 sh->root.u.def.section = htab->glink;
6562 sh->root.u.def.value = htab->glink_pltresolve;
6563 sh->ref_regular = 1;
6564 sh->def_regular = 1;
6565 sh->ref_regular_nonweak = 1;
6566 sh->forced_local = 1;
6567 sh->non_elf = 0;
2ec55de3 6568 sh->root.linker_def = 1;
0ba07910
AM
6569 }
6570 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6571 TRUE, FALSE, FALSE);
6572 if (sh == NULL)
6573 return FALSE;
6574 if (sh->root.type == bfd_link_hash_new)
6575 {
6576 sh->root.type = bfd_link_hash_defined;
6577 sh->root.u.def.section = htab->glink;
6578 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6579 sh->ref_regular = 1;
6580 sh->def_regular = 1;
6581 sh->ref_regular_nonweak = 1;
6582 sh->forced_local = 1;
6583 sh->non_elf = 0;
2ec55de3 6584 sh->root.linker_def = 1;
0ba07910
AM
6585 }
6586 }
d7128ce4
AM
6587 }
6588
6177242a
AM
6589 if (htab->glink != NULL
6590 && htab->glink->size != 0
6591 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6592 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6593 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6594 {
6595 s = htab->glink_eh_frame;
6596 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6597 if (bfd_link_pic (info))
6177242a
AM
6598 {
6599 s->size += 4;
6600 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6601 s->size += 4;
6602 }
6603 }
6604
25dbc73a
AM
6605 /* We've now determined the sizes of the various dynamic sections.
6606 Allocate memory for them. */
6607 relocs = FALSE;
6608 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6609 {
9d8504b1
PB
6610 bfd_boolean strip_section = TRUE;
6611
25dbc73a
AM
6612 if ((s->flags & SEC_LINKER_CREATED) == 0)
6613 continue;
252b5132 6614
25dbc73a 6615 if (s == htab->plt
e054468f 6616 || s == htab->got)
25dbc73a 6617 {
9d8504b1
PB
6618 /* We'd like to strip these sections if they aren't needed, but if
6619 we've exported dynamic symbols from them we must leave them.
6620 It's too late to tell BFD to get rid of the symbols. */
e054468f 6621 if (htab->elf.hplt != NULL)
9d8504b1 6622 strip_section = FALSE;
25dbc73a
AM
6623 /* Strip this section if we don't need it; see the
6624 comment below. */
6625 }
e054468f
AM
6626 else if (s == htab->iplt
6627 || s == htab->glink
6177242a 6628 || s == htab->glink_eh_frame
e054468f
AM
6629 || s == htab->sgotplt
6630 || s == htab->sbss
6631 || s == htab->dynbss
15bfcc77 6632 || s == htab->dynsbss)
25dbc73a 6633 {
c9a2f333 6634 /* Strip these too. */
25dbc73a 6635 }
15bfcc77
AM
6636 else if (s == htab->sdata[0].section
6637 || s == htab->sdata[1].section)
6638 {
6639 strip_section = (s->flags & SEC_KEEP) == 0;
6640 }
a0f49396
NC
6641 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6642 ".rela"))
25dbc73a 6643 {
c456f082 6644 if (s->size != 0)
25dbc73a
AM
6645 {
6646 /* Remember whether there are any relocation sections. */
6647 relocs = TRUE;
252b5132 6648
25dbc73a
AM
6649 /* We use the reloc_count field as a counter if we need
6650 to copy relocs into the output file. */
6651 s->reloc_count = 0;
252b5132
RH
6652 }
6653 }
25dbc73a
AM
6654 else
6655 {
6656 /* It's not one of our sections, so don't allocate space. */
6657 continue;
6658 }
252b5132 6659
9d8504b1 6660 if (s->size == 0 && strip_section)
25dbc73a 6661 {
c456f082
AM
6662 /* If we don't need this section, strip it from the
6663 output file. This is mostly to handle .rela.bss and
6664 .rela.plt. We must create both sections in
6665 create_dynamic_sections, because they must be created
6666 before the linker maps input sections to output
6667 sections. The linker does that before
6668 adjust_dynamic_symbol is called, and it is that
6669 function which decides whether anything needs to go
6670 into these sections. */
8423293d 6671 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6672 continue;
6673 }
7fce784e 6674
d7128ce4 6675 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6676 continue;
6677
25dbc73a
AM
6678 /* Allocate memory for the section contents. */
6679 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6680 if (s->contents == NULL)
6681 return FALSE;
6682 }
252b5132 6683
25dbc73a 6684 if (htab->elf.dynamic_sections_created)
7619e7c7 6685 {
25dbc73a
AM
6686 /* Add some entries to the .dynamic section. We fill in the
6687 values later, in ppc_elf_finish_dynamic_sections, but we
6688 must add the entries now so that we get the correct size for
6689 the .dynamic section. The DT_DEBUG entry is filled in by the
6690 dynamic linker and used by the debugger. */
6691#define add_dynamic_entry(TAG, VAL) \
6692 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6693
0e1862bb 6694 if (bfd_link_executable (info))
7619e7c7 6695 {
25dbc73a
AM
6696 if (!add_dynamic_entry (DT_DEBUG, 0))
6697 return FALSE;
7619e7c7
AM
6698 }
6699
25dbc73a 6700 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 6701 {
25dbc73a
AM
6702 if (!add_dynamic_entry (DT_PLTGOT, 0)
6703 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6704 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6705 || !add_dynamic_entry (DT_JMPREL, 0))
6706 return FALSE;
6707 }
7619e7c7 6708
c7e17e05
AM
6709 if (htab->plt_type == PLT_NEW
6710 && htab->glink != NULL
6711 && htab->glink->size != 0)
d7128ce4 6712 {
1fe44d79 6713 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6714 return FALSE;
5446cbdf 6715 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6716 && htab->tls_get_addr != NULL
6717 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6718 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6719 return FALSE;
d7128ce4
AM
6720 }
6721
25dbc73a
AM
6722 if (relocs)
6723 {
6724 if (!add_dynamic_entry (DT_RELA, 0)
6725 || !add_dynamic_entry (DT_RELASZ, 0)
6726 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6727 return FALSE;
6728 }
7619e7c7 6729
25dbc73a
AM
6730 /* If any dynamic relocs apply to a read-only section, then we
6731 need a DT_TEXTREL entry. */
6732 if ((info->flags & DF_TEXTREL) == 0)
625af618 6733 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6734 info);
7619e7c7 6735
25dbc73a
AM
6736 if ((info->flags & DF_TEXTREL) != 0)
6737 {
6738 if (!add_dynamic_entry (DT_TEXTREL, 0))
6739 return FALSE;
7619e7c7 6740 }
7a2b07ff
NS
6741 if (htab->is_vxworks
6742 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6743 return FALSE;
6744 }
25dbc73a
AM
6745#undef add_dynamic_entry
6746
7e01508c
AM
6747 if (htab->glink_eh_frame != NULL
6748 && htab->glink_eh_frame->contents != NULL)
6749 {
6750 unsigned char *p = htab->glink_eh_frame->contents;
6751 bfd_vma val;
6752
6753 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6754 /* CIE length (rewrite in case little-endian). */
6755 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6756 p += sizeof (glink_eh_frame_cie);
6757 /* FDE length. */
6758 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6759 bfd_put_32 (htab->elf.dynobj, val, p);
6760 p += 4;
6761 /* CIE pointer. */
6762 val = p - htab->glink_eh_frame->contents;
6763 bfd_put_32 (htab->elf.dynobj, val, p);
6764 p += 4;
6765 /* Offset to .glink. Set later. */
6766 p += 4;
6767 /* .glink size. */
6768 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6769 p += 4;
6770 /* Augmentation. */
6771 p += 1;
6772
0e1862bb 6773 if (bfd_link_pic (info)
7e01508c
AM
6774 && htab->elf.dynamic_sections_created)
6775 {
6776 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6777 if (adv < 64)
6778 *p++ = DW_CFA_advance_loc + adv;
6779 else if (adv < 256)
6780 {
6781 *p++ = DW_CFA_advance_loc1;
6782 *p++ = adv;
6783 }
6784 else if (adv < 65536)
6785 {
6786 *p++ = DW_CFA_advance_loc2;
6787 bfd_put_16 (htab->elf.dynobj, adv, p);
6788 p += 2;
6789 }
6790 else
6791 {
6792 *p++ = DW_CFA_advance_loc4;
6793 bfd_put_32 (htab->elf.dynobj, adv, p);
6794 p += 4;
6795 }
6796 *p++ = DW_CFA_register;
6797 *p++ = 65;
6798 p++;
6799 *p++ = DW_CFA_advance_loc + 4;
6800 *p++ = DW_CFA_restore_extended;
6801 *p++ = 65;
6802 }
6803 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6804 == htab->glink_eh_frame->size);
6805 }
6806
7619e7c7
AM
6807 return TRUE;
6808}
0eb4a168 6809
93d1b056
AM
6810/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6811 if it looks like nothing is using them. */
6812
6813static void
6814maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6815{
6816 struct elf_link_hash_entry *sda = lsect->sym;
6817
6818 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6819 {
6820 asection *s;
6821
6822 s = bfd_get_section_by_name (output_bfd, lsect->name);
6823 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6824 {
6825 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6826 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6827 {
6828 sda->def_regular = 0;
6829 /* This is somewhat magic. See elf_link_output_extsym. */
6830 sda->ref_dynamic = 1;
6831 sda->forced_local = 0;
6832 }
6833 }
6834 }
6835}
6836
6837void
6838ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6839{
6840 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6841
6842 if (htab != NULL)
6843 {
6844 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6845 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6846 }
6847}
6848
6849
0eb4a168
AM
6850/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6851
6852static bfd_boolean
6853ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6854{
6855 if (h->plt.plist != NULL
6856 && !h->def_regular
6857 && (!h->pointer_equality_needed
6858 || !h->ref_regular_nonweak))
6859 return FALSE;
6860
6861 return _bfd_elf_hash_symbol (h);
6862}
25dbc73a
AM
6863\f
6864#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6865
01017ef8
NS
6866/* Relaxation trampolines. r12 is available for clobbering (r11, is
6867 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6868static const int shared_stub_entry[] =
6869 {
6870 0x7c0802a6, /* mflr 0 */
6871 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6872 0x7d8802a6, /* mflr 12 */
6873 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6874 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6875 0x7c0803a6, /* mtlr 0 */
01017ef8 6876 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6877 0x4e800420, /* bctr */
6878 };
6879
6880static const int stub_entry[] =
6881 {
01017ef8
NS
6882 0x3d800000, /* lis 12,xxx@ha */
6883 0x398c0000, /* addi 12,12,xxx@l */
6884 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6885 0x4e800420, /* bctr */
6886 };
6887
5446cbdf
AM
6888struct ppc_elf_relax_info
6889{
6890 unsigned int workaround_size;
d3e454b9 6891 unsigned int picfixup_size;
5446cbdf
AM
6892};
6893
6894/* This function implements long branch trampolines, and the ppc476
6895 icache bug workaround. Any section needing trampolines or patch
6896 space for the workaround has its size extended so that we can
53291d1f 6897 add trampolines at the end of the section. */
5446cbdf 6898
25dbc73a
AM
6899static bfd_boolean
6900ppc_elf_relax_section (bfd *abfd,
6901 asection *isec,
6902 struct bfd_link_info *link_info,
6903 bfd_boolean *again)
6904{
d3e454b9 6905 struct one_branch_fixup
25dbc73a 6906 {
d3e454b9 6907 struct one_branch_fixup *next;
25dbc73a 6908 asection *tsec;
01017ef8
NS
6909 /* Final link, can use the symbol offset. For a
6910 relocatable link we use the symbol's index. */
25dbc73a
AM
6911 bfd_vma toff;
6912 bfd_vma trampoff;
6913 };
7619e7c7 6914
25dbc73a
AM
6915 Elf_Internal_Shdr *symtab_hdr;
6916 bfd_byte *contents = NULL;
6917 Elf_Internal_Sym *isymbuf = NULL;
6918 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6919 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6920 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6921 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6922 unsigned changes = 0;
5446cbdf 6923 bfd_boolean workaround_change;
d7128ce4 6924 struct ppc_elf_link_hash_table *htab;
d3e454b9 6925 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6926 asection *got2;
50248c89 6927 bfd_boolean maybe_pasted;
7619e7c7 6928
25dbc73a 6929 *again = FALSE;
7619e7c7 6930
5446cbdf 6931 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6932 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6933 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6934 || (isec->flags & SEC_LINKER_CREATED) != 0
6935 || isec->size < 4)
25dbc73a 6936 return TRUE;
7619e7c7 6937
c8a1f254
NS
6938 /* We cannot represent the required PIC relocs in the output, so don't
6939 do anything. The linker doesn't support mixing -shared and -r
6940 anyway. */
0e1862bb 6941 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6942 return TRUE;
5b914448 6943
5446cbdf
AM
6944 htab = ppc_elf_hash_table (link_info);
6945 if (htab == NULL)
6946 return TRUE;
6947
6948 isec->size = (isec->size + 3) & -4;
6949 if (isec->rawsize == 0)
6950 isec->rawsize = isec->size;
6951 trampbase = isec->size;
6952
53291d1f
AM
6953 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6954 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6955 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6956
d3e454b9
AM
6957 if (htab->params->ppc476_workaround
6958 || htab->params->pic_fixup > 0)
5446cbdf
AM
6959 {
6960 if (elf_section_data (isec)->sec_info == NULL)
6961 {
5446cbdf
AM
6962 elf_section_data (isec)->sec_info
6963 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6964 if (elf_section_data (isec)->sec_info == NULL)
6965 return FALSE;
6966 }
6967 relax_info = elf_section_data (isec)->sec_info;
6968 trampbase -= relax_info->workaround_size;
6969 }
6970
50248c89
AM
6971 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6972 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6973 /* Space for a branch around any trampolines. */
5446cbdf
AM
6974 trampoff = trampbase;
6975 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6976 trampoff += 4;
7619e7c7 6977
0ffa91dd 6978 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6979 picfixup_size = 0;
6980 if (htab->params->branch_trampolines
6981 || htab->params->pic_fixup > 0)
7619e7c7 6982 {
5446cbdf
AM
6983 /* Get a copy of the native relocations. */
6984 if (isec->reloc_count != 0)
25dbc73a 6985 {
5446cbdf
AM
6986 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6987 link_info->keep_memory);
6988 if (internal_relocs == NULL)
6989 goto error_return;
25dbc73a 6990 }
7619e7c7 6991
5446cbdf
AM
6992 got2 = bfd_get_section_by_name (abfd, ".got2");
6993
6994 irelend = internal_relocs + isec->reloc_count;
6995 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 6996 {
5446cbdf
AM
6997 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6998 bfd_vma toff, roff;
6999 asection *tsec;
d3e454b9 7000 struct one_branch_fixup *f;
5446cbdf 7001 size_t insn_offset = 0;
d3e454b9 7002 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
7003 bfd_byte *hit_addr;
7004 unsigned long t0;
7005 struct elf_link_hash_entry *h;
7006 struct plt_entry **plist;
7007 unsigned char sym_type;
7008
7009 switch (r_type)
7010 {
7011 case R_PPC_REL24:
7012 case R_PPC_LOCAL24PC:
7013 case R_PPC_PLTREL24:
7014 max_branch_offset = 1 << 25;
7015 break;
7016
7017 case R_PPC_REL14:
7018 case R_PPC_REL14_BRTAKEN:
7019 case R_PPC_REL14_BRNTAKEN:
7020 max_branch_offset = 1 << 15;
7021 break;
7fce784e 7022
d3e454b9
AM
7023 case R_PPC_ADDR16_HA:
7024 if (htab->params->pic_fixup > 0)
7025 break;
7026 continue;
7027
5446cbdf
AM
7028 default:
7029 continue;
7030 }
7031
7032 /* Get the value of the symbol referred to by the reloc. */
7033 h = NULL;
7034 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 7035 {
5446cbdf
AM
7036 /* A local symbol. */
7037 Elf_Internal_Sym *isym;
7038
7039 /* Read this BFD's local symbols. */
25dbc73a 7040 if (isymbuf == NULL)
5446cbdf
AM
7041 {
7042 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
7043 if (isymbuf == NULL)
7044 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
7045 symtab_hdr->sh_info, 0,
7046 NULL, NULL, NULL);
7047 if (isymbuf == 0)
7048 goto error_return;
7049 }
7050 isym = isymbuf + ELF32_R_SYM (irel->r_info);
7051 if (isym->st_shndx == SHN_UNDEF)
7052 tsec = bfd_und_section_ptr;
7053 else if (isym->st_shndx == SHN_ABS)
7054 tsec = bfd_abs_section_ptr;
7055 else if (isym->st_shndx == SHN_COMMON)
7056 tsec = bfd_com_section_ptr;
7057 else
7058 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7059
7060 toff = isym->st_value;
7061 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 7062 }
25dbc73a 7063 else
5446cbdf
AM
7064 {
7065 /* Global symbol handling. */
7066 unsigned long indx;
7fce784e 7067
5446cbdf
AM
7068 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
7069 h = elf_sym_hashes (abfd)[indx];
7619e7c7 7070
5446cbdf
AM
7071 while (h->root.type == bfd_link_hash_indirect
7072 || h->root.type == bfd_link_hash_warning)
7073 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 7074
5446cbdf
AM
7075 if (h->root.type == bfd_link_hash_defined
7076 || h->root.type == bfd_link_hash_defweak)
7077 {
7078 tsec = h->root.u.def.section;
7079 toff = h->root.u.def.value;
7080 }
7081 else if (h->root.type == bfd_link_hash_undefined
7082 || h->root.type == bfd_link_hash_undefweak)
7083 {
7084 tsec = bfd_und_section_ptr;
0e1862bb 7085 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
7086 }
7087 else
7088 continue;
7089
9f7552cf
AM
7090 /* If this branch is to __tls_get_addr then we may later
7091 optimise away the call. We won't be needing a long-
7092 branch stub in that case. */
0e1862bb 7093 if (bfd_link_executable (link_info)
9f7552cf
AM
7094 && h == htab->tls_get_addr
7095 && irel != internal_relocs)
7096 {
7097 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7098 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7099 unsigned int tls_mask = 0;
7100
7101 /* The previous reloc should be one of R_PPC_TLSGD or
7102 R_PPC_TLSLD, or for older object files, a reloc
7103 on the __tls_get_addr arg setup insn. Get tls
7104 mask bits from the symbol on that reloc. */
7105 if (t_symndx < symtab_hdr->sh_info)
7106 {
7107 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7108
7109 if (local_got_offsets != NULL)
7110 {
7111 struct plt_entry **local_plt = (struct plt_entry **)
7112 (local_got_offsets + symtab_hdr->sh_info);
7113 char *lgot_masks = (char *)
7114 (local_plt + symtab_hdr->sh_info);
7115 tls_mask = lgot_masks[t_symndx];
7116 }
7117 }
7118 else
7119 {
7120 struct elf_link_hash_entry *th
7121 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7122
7123 while (th->root.type == bfd_link_hash_indirect
7124 || th->root.type == bfd_link_hash_warning)
7125 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7126
7127 tls_mask
7128 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7129 }
7130
7131 /* The mask bits tell us if the call will be
7132 optimised away. */
7133 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7134 && (t_rtype == R_PPC_TLSGD
7135 || t_rtype == R_PPC_GOT_TLSGD16
7136 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7137 continue;
7138 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7139 && (t_rtype == R_PPC_TLSLD
7140 || t_rtype == R_PPC_GOT_TLSLD16
7141 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7142 continue;
7143 }
7144
5446cbdf
AM
7145 sym_type = h->type;
7146 }
7619e7c7 7147
d3e454b9
AM
7148 if (r_type == R_PPC_ADDR16_HA)
7149 {
7150 if (h != NULL
7151 && !h->def_regular
7152 && h->protected_def
7153 && ppc_elf_hash_entry (h)->has_addr16_ha
7154 && ppc_elf_hash_entry (h)->has_addr16_lo)
7155 picfixup_size += 12;
7156 continue;
7157 }
7158
5446cbdf
AM
7159 /* The condition here under which we call find_plt_ent must
7160 match that in relocate_section. If we call find_plt_ent here
7161 but not in relocate_section, or vice versa, then the branch
7162 destination used here may be incorrect. */
7163 plist = NULL;
7164 if (h != NULL)
25dbc73a 7165 {
5446cbdf
AM
7166 /* We know is_branch_reloc (r_type) is true. */
7167 if (h->type == STT_GNU_IFUNC
7168 || r_type == R_PPC_PLTREL24)
7169 plist = &h->plt.plist;
25dbc73a 7170 }
5446cbdf
AM
7171 else if (sym_type == STT_GNU_IFUNC
7172 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7173 {
5446cbdf
AM
7174 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7175 struct plt_entry **local_plt = (struct plt_entry **)
7176 (local_got_offsets + symtab_hdr->sh_info);
7177 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7178 }
5446cbdf 7179 if (plist != NULL)
a9585d22 7180 {
5446cbdf
AM
7181 bfd_vma addend = 0;
7182 struct plt_entry *ent;
7183
0e1862bb 7184 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7185 addend = irel->r_addend;
7186 ent = find_plt_ent (plist, got2, addend);
7187 if (ent != NULL)
a9585d22 7188 {
5446cbdf
AM
7189 if (htab->plt_type == PLT_NEW
7190 || h == NULL
7191 || !htab->elf.dynamic_sections_created
7192 || h->dynindx == -1)
7193 {
7194 tsec = htab->glink;
7195 toff = ent->glink_offset;
7196 }
7197 else
7198 {
7199 tsec = htab->plt;
7200 toff = ent->plt.offset;
7201 }
de972ffa
AM
7202 }
7203 }
de972ffa 7204
5446cbdf
AM
7205 /* If the branch and target are in the same section, you have
7206 no hope of adding stubs. We'll error out later should the
7207 branch overflow. */
7208 if (tsec == isec)
7209 continue;
25dbc73a 7210
5446cbdf
AM
7211 /* There probably isn't any reason to handle symbols in
7212 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7213 attribute for a code section, and we are only looking at
7214 branches. However, implement it correctly here as a
7215 reference for other target relax_section functions. */
7216 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7217 {
7218 /* At this stage in linking, no SEC_MERGE symbol has been
7219 adjusted, so all references to such symbols need to be
7220 passed through _bfd_merged_section_offset. (Later, in
7221 relocate_section, all SEC_MERGE symbols *except* for
7222 section symbols have been adjusted.)
7223
7224 gas may reduce relocations against symbols in SEC_MERGE
7225 sections to a relocation against the section symbol when
7226 the original addend was zero. When the reloc is against
7227 a section symbol we should include the addend in the
7228 offset passed to _bfd_merged_section_offset, since the
7229 location of interest is the original symbol. On the
7230 other hand, an access to "sym+addend" where "sym" is not
7231 a section symbol should not include the addend; Such an
7232 access is presumed to be an offset from "sym"; The
7233 location of interest is just "sym". */
7234 if (sym_type == STT_SECTION)
7235 toff += irel->r_addend;
7236
7237 toff
7238 = _bfd_merged_section_offset (abfd, &tsec,
7239 elf_section_data (tsec)->sec_info,
7240 toff);
7241
7242 if (sym_type != STT_SECTION)
7243 toff += irel->r_addend;
7244 }
7245 /* PLTREL24 addends are special. */
7246 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7247 toff += irel->r_addend;
7619e7c7 7248
5446cbdf 7249 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7250 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7251 && tsec == bfd_und_section_ptr)
7252 || tsec->output_section == NULL
7253 || (tsec->owner != NULL
7254 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7255 continue;
7619e7c7 7256
5446cbdf 7257 roff = irel->r_offset;
7de713b9 7258
5446cbdf
AM
7259 /* If the branch is in range, no need to do anything. */
7260 if (tsec != bfd_und_section_ptr
0e1862bb 7261 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7262 /* A relocatable link may have sections moved during
7263 final link, so do not presume they remain in range. */
7264 || tsec->output_section == isec->output_section))
7265 {
7266 bfd_vma symaddr, reladdr;
7619e7c7 7267
5446cbdf
AM
7268 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7269 reladdr = isec->output_section->vma + isec->output_offset + roff;
7270 if (symaddr - reladdr + max_branch_offset
7271 < 2 * max_branch_offset)
7272 continue;
7273 }
01017ef8 7274
5446cbdf 7275 /* Look for an existing fixup to this address. */
d3e454b9 7276 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7277 if (f->tsec == tsec && f->toff == toff)
7278 break;
252b5132 7279
5446cbdf
AM
7280 if (f == NULL)
7281 {
7282 size_t size;
7283 unsigned long stub_rtype;
25dbc73a 7284
5446cbdf
AM
7285 val = trampoff - roff;
7286 if (val >= max_branch_offset)
7287 /* Oh dear, we can't reach a trampoline. Don't try to add
7288 one. We'll report an error later. */
7289 continue;
252b5132 7290
0e1862bb 7291 if (bfd_link_pic (link_info))
5446cbdf
AM
7292 {
7293 size = 4 * ARRAY_SIZE (shared_stub_entry);
7294 insn_offset = 12;
7295 }
7296 else
7297 {
7298 size = 4 * ARRAY_SIZE (stub_entry);
7299 insn_offset = 0;
7300 }
7301 stub_rtype = R_PPC_RELAX;
7302 if (tsec == htab->plt
7303 || tsec == htab->glink)
7304 {
7305 stub_rtype = R_PPC_RELAX_PLT;
7306 if (r_type == R_PPC_PLTREL24)
7307 stub_rtype = R_PPC_RELAX_PLTREL24;
7308 }
252b5132 7309
5446cbdf
AM
7310 /* Hijack the old relocation. Since we need two
7311 relocations for this use a "composite" reloc. */
7312 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7313 stub_rtype);
7314 irel->r_offset = trampoff + insn_offset;
7315 if (r_type == R_PPC_PLTREL24
7316 && stub_rtype != R_PPC_RELAX_PLTREL24)
7317 irel->r_addend = 0;
7318
7319 /* Record the fixup so we don't do it again this section. */
7320 f = bfd_malloc (sizeof (*f));
d3e454b9 7321 f->next = branch_fixups;
5446cbdf
AM
7322 f->tsec = tsec;
7323 f->toff = toff;
7324 f->trampoff = trampoff;
d3e454b9 7325 branch_fixups = f;
5446cbdf
AM
7326
7327 trampoff += size;
7328 changes++;
25dbc73a
AM
7329 }
7330 else
7331 {
5446cbdf
AM
7332 val = f->trampoff - roff;
7333 if (val >= max_branch_offset)
7334 continue;
252b5132 7335
5446cbdf
AM
7336 /* Nop out the reloc, since we're finalizing things here. */
7337 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7338 }
252b5132 7339
5446cbdf
AM
7340 /* Get the section contents. */
7341 if (contents == NULL)
25dbc73a 7342 {
5446cbdf
AM
7343 /* Get cached copy if it exists. */
7344 if (elf_section_data (isec)->this_hdr.contents != NULL)
7345 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7346 /* Go get them off disk. */
5446cbdf 7347 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7348 goto error_return;
7349 }
252b5132 7350
5446cbdf
AM
7351 /* Fix up the existing branch to hit the trampoline. */
7352 hit_addr = contents + roff;
7353 switch (r_type)
7354 {
7355 case R_PPC_REL24:
7356 case R_PPC_LOCAL24PC:
7357 case R_PPC_PLTREL24:
7358 t0 = bfd_get_32 (abfd, hit_addr);
7359 t0 &= ~0x3fffffc;
7360 t0 |= val & 0x3fffffc;
7361 bfd_put_32 (abfd, t0, hit_addr);
7362 break;
252b5132 7363
5446cbdf
AM
7364 case R_PPC_REL14:
7365 case R_PPC_REL14_BRTAKEN:
7366 case R_PPC_REL14_BRNTAKEN:
7367 t0 = bfd_get_32 (abfd, hit_addr);
7368 t0 &= ~0xfffc;
7369 t0 |= val & 0xfffc;
7370 bfd_put_32 (abfd, t0, hit_addr);
7371 break;
7372 }
25dbc73a 7373 }
252b5132 7374
d3e454b9 7375 while (branch_fixups != NULL)
25dbc73a 7376 {
d3e454b9
AM
7377 struct one_branch_fixup *f = branch_fixups;
7378 branch_fixups = branch_fixups->next;
25dbc73a
AM
7379 free (f);
7380 }
5446cbdf 7381 }
252b5132 7382
5446cbdf
AM
7383 workaround_change = FALSE;
7384 newsize = trampoff;
795bc6b3 7385 if (htab->params->ppc476_workaround
0e1862bb 7386 && (!bfd_link_relocatable (link_info)
795bc6b3 7387 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7388 {
7389 bfd_vma addr, end_addr;
7390 unsigned int crossings;
795bc6b3 7391 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7392
7393 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7394 end_addr = addr + trampoff;
5446cbdf 7395 addr &= -pagesize;
795bc6b3 7396 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7397 if (crossings != 0)
7398 {
7399 /* Keep space aligned, to ensure the patch code itself does
7400 not cross a page. Don't decrease size calculated on a
7401 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7402 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7403 newsize += crossings * 16;
7404 if (relax_info->workaround_size < newsize)
7405 {
7406 relax_info->workaround_size = newsize;
7407 workaround_change = TRUE;
5446cbdf
AM
7408 }
7409 /* Ensure relocate_section is called. */
7410 isec->flags |= SEC_RELOC;
7411 }
7412 newsize = trampoff + relax_info->workaround_size;
7413 }
7414
d3e454b9
AM
7415 if (htab->params->pic_fixup > 0)
7416 {
7417 picfixup_size -= relax_info->picfixup_size;
7418 if (picfixup_size != 0)
7419 relax_info->picfixup_size += picfixup_size;
7420 newsize += relax_info->picfixup_size;
7421 }
7422
7423 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7424 isec->size = newsize;
7425
25dbc73a
AM
7426 if (isymbuf != NULL
7427 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7428 {
25dbc73a
AM
7429 if (! link_info->keep_memory)
7430 free (isymbuf);
252b5132 7431 else
25dbc73a
AM
7432 {
7433 /* Cache the symbols for elf_link_input_bfd. */
7434 symtab_hdr->contents = (unsigned char *) isymbuf;
7435 }
252b5132
RH
7436 }
7437
25dbc73a
AM
7438 if (contents != NULL
7439 && elf_section_data (isec)->this_hdr.contents != contents)
7440 {
53291d1f 7441 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7442 free (contents);
7443 else
7444 {
7445 /* Cache the section contents for elf_link_input_bfd. */
7446 elf_section_data (isec)->this_hdr.contents = contents;
7447 }
7448 }
252b5132 7449
d3e454b9 7450 changes += picfixup_size;
9bc4e62b 7451 if (changes != 0)
25dbc73a 7452 {
9bc4e62b
NS
7453 /* Append sufficient NOP relocs so we can write out relocation
7454 information for the trampolines. */
d4730f92 7455 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7456 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7457 * sizeof (*new_relocs));
7458 unsigned ix;
5b914448 7459
9bc4e62b
NS
7460 if (!new_relocs)
7461 goto error_return;
7462 memcpy (new_relocs, internal_relocs,
7463 isec->reloc_count * sizeof (*new_relocs));
7464 for (ix = changes; ix--;)
7465 {
7466 irel = new_relocs + ix + isec->reloc_count;
7467
7468 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7469 }
7470 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7471 free (internal_relocs);
9bc4e62b
NS
7472 elf_section_data (isec)->relocs = new_relocs;
7473 isec->reloc_count += changes;
d4730f92
BS
7474 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7475 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7476 }
5446cbdf
AM
7477 else if (internal_relocs != NULL
7478 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7479 free (internal_relocs);
252b5132 7480
5446cbdf 7481 *again = changes != 0 || workaround_change;
b34976b6 7482 return TRUE;
25dbc73a
AM
7483
7484 error_return:
d3e454b9 7485 while (branch_fixups != NULL)
5446cbdf 7486 {
d3e454b9
AM
7487 struct one_branch_fixup *f = branch_fixups;
7488 branch_fixups = branch_fixups->next;
5446cbdf
AM
7489 free (f);
7490 }
25dbc73a
AM
7491 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7492 free (isymbuf);
7493 if (contents != NULL
7494 && elf_section_data (isec)->this_hdr.contents != contents)
7495 free (contents);
7496 if (internal_relocs != NULL
7497 && elf_section_data (isec)->relocs != internal_relocs)
7498 free (internal_relocs);
7499 return FALSE;
252b5132 7500}
252b5132 7501\f
8a696751
AM
7502/* What to do when ld finds relocations against symbols defined in
7503 discarded sections. */
7504
7505static unsigned int
7506ppc_elf_action_discarded (asection *sec)
7507{
7508 if (strcmp (".fixup", sec->name) == 0)
7509 return 0;
7510
7511 if (strcmp (".got2", sec->name) == 0)
7512 return 0;
7513
7514 return _bfd_elf_default_action_discarded (sec);
7515}
c9a2f333 7516\f
25dbc73a 7517/* Fill in the address for a pointer generated in a linker section. */
252b5132 7518
25dbc73a 7519static bfd_vma
76750a2f 7520elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7521 elf_linker_section_t *lsect,
7522 struct elf_link_hash_entry *h,
7523 bfd_vma relocation,
2bb04cf2 7524 const Elf_Internal_Rela *rel)
25dbc73a
AM
7525{
7526 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7527
25dbc73a 7528 BFD_ASSERT (lsect != NULL);
252b5132 7529
25dbc73a 7530 if (h != NULL)
252b5132 7531 {
25dbc73a
AM
7532 /* Handle global symbol. */
7533 struct ppc_elf_link_hash_entry *eh;
252b5132 7534
25dbc73a 7535 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7536 BFD_ASSERT (eh->elf.def_regular);
7537 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7538 }
7539 else
7540 {
7541 /* Handle local symbol. */
7542 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7543
0c8d6e5c 7544 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7545 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7546 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7547 }
252b5132 7548
76750a2f
AM
7549 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7550 rel->r_addend,
7551 lsect);
7552 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7553
76750a2f
AM
7554 /* Offset will always be a multiple of four, so use the bottom bit
7555 as a "written" flag. */
7556 if ((linker_section_ptr->offset & 1) == 0)
7557 {
7558 bfd_put_32 (lsect->section->owner,
7559 relocation + linker_section_ptr->addend,
7560 lsect->section->contents + linker_section_ptr->offset);
7561 linker_section_ptr->offset += 1;
252b5132
RH
7562 }
7563
bd6c6e2b
AM
7564 relocation = (lsect->section->output_section->vma
7565 + lsect->section->output_offset
76750a2f 7566 + linker_section_ptr->offset - 1
bd6c6e2b 7567 - SYM_VAL (lsect->sym));
252b5132 7568
25dbc73a
AM
7569#ifdef DEBUG
7570 fprintf (stderr,
7571 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7572 lsect->name, (long) relocation, (long) relocation);
7573#endif
252b5132 7574
bd6c6e2b 7575 return relocation;
252b5132 7576}
25dbc73a 7577
e054468f
AM
7578#define PPC_LO(v) ((v) & 0xffff)
7579#define PPC_HI(v) (((v) >> 16) & 0xffff)
7580#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7581
7582static void
a7f2871e 7583write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7584 struct bfd_link_info *info)
7585{
7586 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7587 bfd *output_bfd = info->output_bfd;
7588 bfd_vma plt;
e054468f
AM
7589
7590 plt = ((ent->plt.offset & ~1)
7591 + plt_sec->output_section->vma
7592 + plt_sec->output_offset);
e054468f 7593
0e1862bb 7594 if (bfd_link_pic (info))
e054468f
AM
7595 {
7596 bfd_vma got = 0;
7597
7598 if (ent->addend >= 32768)
7599 got = (ent->addend
7600 + ent->sec->output_section->vma
7601 + ent->sec->output_offset);
7602 else if (htab->elf.hgot != NULL)
7603 got = SYM_VAL (htab->elf.hgot);
7604
7605 plt -= got;
7606
7607 if (plt + 0x8000 < 0x10000)
7608 {
7609 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7610 p += 4;
7611 bfd_put_32 (output_bfd, MTCTR_11, p);
7612 p += 4;
7613 bfd_put_32 (output_bfd, BCTR, p);
7614 p += 4;
da3a2088 7615 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7616 p += 4;
7617 }
7618 else
7619 {
7620 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7621 p += 4;
7622 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7623 p += 4;
7624 bfd_put_32 (output_bfd, MTCTR_11, p);
7625 p += 4;
7626 bfd_put_32 (output_bfd, BCTR, p);
7627 p += 4;
7628 }
7629 }
7630 else
7631 {
7632 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7633 p += 4;
7634 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7635 p += 4;
7636 bfd_put_32 (output_bfd, MTCTR_11, p);
7637 p += 4;
7638 bfd_put_32 (output_bfd, BCTR, p);
7639 p += 4;
7640 }
7641}
7642
bd6c6e2b
AM
7643/* Return true if symbol is defined statically. */
7644
7645static bfd_boolean
7646is_static_defined (struct elf_link_hash_entry *h)
7647{
7648 return ((h->root.type == bfd_link_hash_defined
7649 || h->root.type == bfd_link_hash_defweak)
7650 && h->root.u.def.section != NULL
7651 && h->root.u.def.section->output_section != NULL);
7652}
7653
2d0f3896
AM
7654/* If INSN is an opcode that may be used with an @tls operand, return
7655 the transformed insn for TLS optimisation, otherwise return 0. If
7656 REG is non-zero only match an insn with RB or RA equal to REG. */
7657
7658unsigned int
7659_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7660{
7661 unsigned int rtra;
7662
7663 if ((insn & (0x3f << 26)) != 31 << 26)
7664 return 0;
7665
7666 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7667 rtra = insn & ((1 << 26) - (1 << 16));
7668 else if (((insn >> 16) & 0x1f) == reg)
7669 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7670 else
7671 return 0;
7672
7673 if ((insn & (0x3ff << 1)) == 266 << 1)
7674 /* add -> addi. */
7675 insn = 14 << 26;
7676 else if ((insn & (0x1f << 1)) == 23 << 1
7677 && ((insn & (0x1f << 6)) < 14 << 6
7678 || ((insn & (0x1f << 6)) >= 16 << 6
7679 && (insn & (0x1f << 6)) < 24 << 6)))
7680 /* load and store indexed -> dform. */
7681 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7682 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7683 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7684 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7685 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7686 /* lwax -> lwa. */
7687 insn = (58 << 26) | 2;
7688 else
7689 return 0;
7690 insn |= rtra;
7691 return insn;
7692}
7693
766bc656
AM
7694/* If INSN is an opcode that may be used with an @tprel operand, return
7695 the transformed insn for an undefined weak symbol, ie. with the
7696 thread pointer REG operand removed. Otherwise return 0. */
7697
7698unsigned int
7699_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7700{
7701 if ((insn & (0x1f << 16)) == reg << 16
7702 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7703 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7704 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7705 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7706 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7707 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7708 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7709 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7710 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7711 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7712 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7713 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7714 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7715 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7716 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7717 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7718 && (insn & 3) != 1)
7719 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7720 && ((insn & 3) == 0 || (insn & 3) == 3))))
7721 {
7722 insn &= ~(0x1f << 16);
7723 }
7724 else if ((insn & (0x1f << 21)) == reg << 21
7725 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7726 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7727 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7728 {
7729 insn &= ~(0x1f << 21);
7730 insn |= (insn & (0x1f << 16)) << 5;
7731 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7732 insn -= 2 >> 26; /* convert to ori,oris */
7733 }
7734 else
7735 insn = 0;
7736 return insn;
7737}
7738
1fe532cf
AM
7739static bfd_boolean
7740is_insn_ds_form (unsigned int insn)
7741{
7742 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7743 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7744 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7745 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7746}
7747
7748static bfd_boolean
7749is_insn_dq_form (unsigned int insn)
7750{
a680de9a
PB
7751 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7752 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7753 && (insn & 3) == 1));
1fe532cf
AM
7754}
7755
252b5132
RH
7756/* The RELOCATE_SECTION function is called by the ELF backend linker
7757 to handle the relocations for a section.
7758
7759 The relocs are always passed as Rela structures; if the section
7760 actually uses Rel structures, the r_addend field will always be
7761 zero.
7762
7763 This function is responsible for adjust the section contents as
7764 necessary, and (if using Rela relocs and generating a
1049f94e 7765 relocatable output file) adjusting the reloc addend as
252b5132
RH
7766 necessary.
7767
7768 This function does not have to worry about setting the reloc
7769 address or the reloc symbol index.
7770
7771 LOCAL_SYMS is a pointer to the swapped in local symbols.
7772
7773 LOCAL_SECTIONS is an array giving the section in the input file
7774 corresponding to the st_shndx field of each local symbol.
7775
7776 The global hash table entry for the global symbols can be found
7777 via elf_sym_hashes (input_bfd).
7778
1049f94e 7779 When generating relocatable output, this function must handle
252b5132
RH
7780 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7781 going to be the section symbol corresponding to the output
7782 section, which means that the addend must be adjusted
7783 accordingly. */
7784
b34976b6 7785static bfd_boolean
55fd94b0
AM
7786ppc_elf_relocate_section (bfd *output_bfd,
7787 struct bfd_link_info *info,
7788 bfd *input_bfd,
7789 asection *input_section,
7790 bfd_byte *contents,
7791 Elf_Internal_Rela *relocs,
7792 Elf_Internal_Sym *local_syms,
7793 asection **local_sections)
252b5132 7794{
7619e7c7
AM
7795 Elf_Internal_Shdr *symtab_hdr;
7796 struct elf_link_hash_entry **sym_hashes;
7797 struct ppc_elf_link_hash_table *htab;
7798 Elf_Internal_Rela *rel;
c316a17c 7799 Elf_Internal_Rela *wrel;
7619e7c7
AM
7800 Elf_Internal_Rela *relend;
7801 Elf_Internal_Rela outrel;
f95f8542 7802 asection *got2;
252b5132 7803 bfd_vma *local_got_offsets;
b34976b6 7804 bfd_boolean ret = TRUE;
4fe5ca5b 7805 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 7806 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7807 unsigned int picfixup_size = 0;
7808 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7809
252b5132 7810#ifdef DEBUG
d003868e
AM
7811 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7812 "%ld relocations%s",
7813 input_bfd, input_section,
7814 (long) input_section->reloc_count,
0e1862bb 7815 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7816#endif
7817
a6aa5195
AM
7818 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7819
e47cd125 7820 /* Initialize howto table if not already done. */
8da6118f 7821 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7822 ppc_elf_howto_init ();
7823
7619e7c7 7824 htab = ppc_elf_hash_table (info);
252b5132 7825 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7826 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7827 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7828 /* We have to handle relocations in vxworks .tls_vars sections
7829 specially, because the dynamic loader is 'weird'. */
0e1862bb 7830 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7831 && !strcmp (input_section->output_section->name,
7832 ".tls_vars"));
d3e454b9
AM
7833 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7834 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7835 rel = wrel = relocs;
7619e7c7 7836 relend = relocs + input_section->reloc_count;
c316a17c 7837 for (; rel < relend; wrel++, rel++)
252b5132 7838 {
7619e7c7
AM
7839 enum elf_ppc_reloc_type r_type;
7840 bfd_vma addend;
7841 bfd_reloc_status_type r;
7842 Elf_Internal_Sym *sym;
7843 asection *sec;
7844 struct elf_link_hash_entry *h;
7845 const char *sym_name;
252b5132
RH
7846 reloc_howto_type *howto;
7847 unsigned long r_symndx;
7848 bfd_vma relocation;
91d6fa6a 7849 bfd_vma branch_bit, from;
7619e7c7
AM
7850 bfd_boolean unresolved_reloc;
7851 bfd_boolean warned;
7852 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7853 struct plt_entry **ifunc;
86c95733 7854 struct reloc_howto_struct alt_howto;
7619e7c7 7855
c316a17c 7856 again:
55fd94b0
AM
7857 r_type = ELF32_R_TYPE (rel->r_info);
7858 sym = NULL;
7859 sec = NULL;
7860 h = NULL;
7619e7c7
AM
7861 unresolved_reloc = FALSE;
7862 warned = FALSE;
252b5132 7863 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7864
252b5132
RH
7865 if (r_symndx < symtab_hdr->sh_info)
7866 {
7867 sym = local_syms + r_symndx;
7868 sec = local_sections[r_symndx];
26c61ae5 7869 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7870
8517fae7 7871 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7872 }
7873 else
7874 {
62d887d4
L
7875 bfd_boolean ignored;
7876
b2a8e766
AM
7877 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7878 r_symndx, symtab_hdr, sym_hashes,
7879 h, sec, relocation,
62d887d4 7880 unresolved_reloc, warned, ignored);
9abc968f 7881
252b5132 7882 sym_name = h->root.root.string;
7619e7c7
AM
7883 }
7884
dbaa2011 7885 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7886 {
7887 /* For relocs against symbols from removed linkonce sections,
7888 or sections discarded by a linker script, we just want the
7889 section contents zeroed. Avoid any special processing. */
7890 howto = NULL;
7891 if (r_type < R_PPC_max)
7892 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7893
7894 _bfd_clear_contents (howto, input_bfd, input_section,
7895 contents + rel->r_offset);
7896 wrel->r_offset = rel->r_offset;
7897 wrel->r_info = 0;
7898 wrel->r_addend = 0;
7899
7900 /* For ld -r, remove relocations in debug sections against
7901 sections defined in discarded sections. Not done for
7902 non-debug to preserve relocs in .eh_frame which the
7903 eh_frame editing code expects to be present. */
7904 if (bfd_link_relocatable (info)
7905 && (input_section->flags & SEC_DEBUGGING))
7906 wrel--;
7907
7908 continue;
ab96bf03
AM
7909 }
7910
0e1862bb 7911 if (bfd_link_relocatable (info))
ab96bf03
AM
7912 {
7913 if (got2 != NULL
7914 && r_type == R_PPC_PLTREL24
f75e0e33 7915 && rel->r_addend != 0)
ab96bf03
AM
7916 {
7917 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7918 addend specifies the GOT pointer offset within .got2. */
7919 rel->r_addend += got2->output_offset;
7920 }
53291d1f
AM
7921 if (r_type != R_PPC_RELAX_PLT
7922 && r_type != R_PPC_RELAX_PLTREL24
7923 && r_type != R_PPC_RELAX)
c316a17c 7924 goto copy_reloc;
ab96bf03
AM
7925 }
7926
7619e7c7
AM
7927 /* TLS optimizations. Replace instruction sequences and relocs
7928 based on information we collected in tls_optimize. We edit
7929 RELOCS so that --emit-relocs will output something sensible
7930 for the final instruction stream. */
7931 tls_mask = 0;
7932 tls_gd = 0;
727fc41e
AM
7933 if (h != NULL)
7934 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7935 else if (local_got_offsets != NULL)
7619e7c7 7936 {
e054468f 7937 struct plt_entry **local_plt;
727fc41e 7938 char *lgot_masks;
e054468f
AM
7939 local_plt
7940 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7941 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7942 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7943 }
7944
7945 /* Ensure reloc mapping code below stays sane. */
7946 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7947 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7948 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7949 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7950 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7951 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7952 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7953 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7954 abort ();
7955 switch (r_type)
7956 {
7957 default:
7958 break;
7959
7960 case R_PPC_GOT_TPREL16:
7961 case R_PPC_GOT_TPREL16_LO:
e054468f 7962 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7963 && (tls_mask & TLS_TPREL) == 0)
7964 {
7965 bfd_vma insn;
91d6fa6a 7966
c316a17c
AM
7967 insn = bfd_get_32 (output_bfd,
7968 contents + rel->r_offset - d_offset);
7619e7c7
AM
7969 insn &= 31 << 21;
7970 insn |= 0x3c020000; /* addis 0,2,0 */
c316a17c
AM
7971 bfd_put_32 (output_bfd, insn,
7972 contents + rel->r_offset - d_offset);
7619e7c7
AM
7973 r_type = R_PPC_TPREL16_HA;
7974 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7975 }
7976 break;
7977
7978 case R_PPC_TLS:
e054468f 7979 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7980 && (tls_mask & TLS_TPREL) == 0)
7981 {
2d0f3896
AM
7982 bfd_vma insn;
7983
7619e7c7 7984 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM
7985 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7986 if (insn == 0)
7619e7c7 7987 abort ();
7619e7c7
AM
7988 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7989 r_type = R_PPC_TPREL16_LO;
7990 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7991
7619e7c7 7992 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7993 PPC_TPREL16_LO which is at low-order half-word. */
7994 rel->r_offset += d_offset;
7619e7c7
AM
7995 }
7996 break;
7997
7998 case R_PPC_GOT_TLSGD16_HI:
7999 case R_PPC_GOT_TLSGD16_HA:
8000 tls_gd = TLS_TPRELGD;
e054468f 8001 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
8002 goto tls_gdld_hi;
8003 break;
8004
8005 case R_PPC_GOT_TLSLD16_HI:
8006 case R_PPC_GOT_TLSLD16_HA:
e054468f 8007 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
8008 {
8009 tls_gdld_hi:
8010 if ((tls_mask & tls_gd) != 0)
8011 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8012 + R_PPC_GOT_TPREL16);
8013 else
8014 {
4fe5ca5b 8015 rel->r_offset -= d_offset;
b86ac8e3 8016 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
8017 r_type = R_PPC_NONE;
8018 }
8019 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8020 }
8021 break;
8022
8023 case R_PPC_GOT_TLSGD16:
8024 case R_PPC_GOT_TLSGD16_LO:
8025 tls_gd = TLS_TPRELGD;
e054468f 8026 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 8027 goto tls_ldgd_opt;
7619e7c7
AM
8028 break;
8029
8030 case R_PPC_GOT_TLSLD16:
8031 case R_PPC_GOT_TLSLD16_LO:
e054468f 8032 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 8033 {
3a71aa26 8034 unsigned int insn1, insn2;
b7fcf6f6 8035 bfd_vma offset;
7619e7c7 8036
b7fcf6f6 8037 tls_ldgd_opt:
727fc41e
AM
8038 offset = (bfd_vma) -1;
8039 /* If not using the newer R_PPC_TLSGD/LD to mark
8040 __tls_get_addr calls, we must trust that the call
8041 stays with its arg setup insns, ie. that the next
8042 reloc is the __tls_get_addr call associated with
8043 the current reloc. Edit both insns. */
8044 if (input_section->has_tls_get_addr_call
8045 && rel + 1 < relend
8046 && branch_reloc_hash_match (input_bfd, rel + 1,
8047 htab->tls_get_addr))
8048 offset = rel[1].r_offset;
b86ac8e3
AM
8049 /* We read the low GOT_TLS insn because we need to keep
8050 the destination reg. It may be something other than
8051 the usual r3, and moved to r3 before the call by
8052 intervening code. */
8053 insn1 = bfd_get_32 (output_bfd,
8054 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8055 if ((tls_mask & tls_gd) != 0)
8056 {
8057 /* IE */
b86ac8e3 8058 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 8059 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
8060 if (offset != (bfd_vma) -1)
8061 {
f58d5a2d 8062 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8063 insn2 = 0x7c631214; /* add 3,3,2 */
8064 bfd_put_32 (output_bfd, insn2, contents + offset);
8065 }
b7fcf6f6
AM
8066 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8067 + R_PPC_GOT_TPREL16);
8068 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8069 }
8070 else
8071 {
8072 /* LE */
b86ac8e3
AM
8073 insn1 &= 0x1f << 21;
8074 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
8075 if (tls_gd == 0)
8076 {
b7fcf6f6 8077 /* Was an LD reloc. */
1d483afe
AM
8078 for (r_symndx = 0;
8079 r_symndx < symtab_hdr->sh_info;
8080 r_symndx++)
8081 if (local_sections[r_symndx] == sec)
8082 break;
8083 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8084 r_symndx = STN_UNDEF;
b7fcf6f6 8085 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8086 if (r_symndx != STN_UNDEF)
1d483afe
AM
8087 rel->r_addend -= (local_syms[r_symndx].st_value
8088 + sec->output_offset
8089 + sec->output_section->vma);
7619e7c7 8090 }
b7fcf6f6
AM
8091 r_type = R_PPC_TPREL16_HA;
8092 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
8093 if (offset != (bfd_vma) -1)
8094 {
8095 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8096 rel[1].r_offset = offset + d_offset;
8097 rel[1].r_addend = rel->r_addend;
8098 insn2 = 0x38630000; /* addi 3,3,0 */
8099 bfd_put_32 (output_bfd, insn2, contents + offset);
8100 }
b7fcf6f6
AM
8101 }
8102 bfd_put_32 (output_bfd, insn1,
8103 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8104 if (tls_gd == 0)
8105 {
8106 /* We changed the symbol on an LD reloc. Start over
8107 in order to get h, sym, sec etc. right. */
c316a17c 8108 goto again;
7619e7c7 8109 }
252b5132 8110 }
7619e7c7 8111 break;
727fc41e
AM
8112
8113 case R_PPC_TLSGD:
e054468f 8114 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
8115 {
8116 unsigned int insn2;
8117 bfd_vma offset = rel->r_offset;
8118
8119 if ((tls_mask & TLS_TPRELGD) != 0)
8120 {
8121 /* IE */
8122 r_type = R_PPC_NONE;
8123 insn2 = 0x7c631214; /* add 3,3,2 */
8124 }
8125 else
8126 {
8127 /* LE */
8128 r_type = R_PPC_TPREL16_LO;
8129 rel->r_offset += d_offset;
8130 insn2 = 0x38630000; /* addi 3,3,0 */
8131 }
8132 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8133 bfd_put_32 (output_bfd, insn2, contents + offset);
8134 /* Zap the reloc on the _tls_get_addr call too. */
8135 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8136 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8137 }
8138 break;
8139
8140 case R_PPC_TLSLD:
e054468f 8141 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
8142 {
8143 unsigned int insn2;
8144
8145 for (r_symndx = 0;
8146 r_symndx < symtab_hdr->sh_info;
8147 r_symndx++)
8148 if (local_sections[r_symndx] == sec)
8149 break;
8150 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8151 r_symndx = STN_UNDEF;
727fc41e 8152 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8153 if (r_symndx != STN_UNDEF)
727fc41e
AM
8154 rel->r_addend -= (local_syms[r_symndx].st_value
8155 + sec->output_offset
8156 + sec->output_section->vma);
8157
8158 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8159 rel->r_offset += d_offset;
8160 insn2 = 0x38630000; /* addi 3,3,0 */
8161 bfd_put_32 (output_bfd, insn2,
8162 contents + rel->r_offset - d_offset);
8163 /* Zap the reloc on the _tls_get_addr call too. */
8164 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8165 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8166 goto again;
727fc41e
AM
8167 }
8168 break;
7619e7c7
AM
8169 }
8170
8171 /* Handle other relocations that tweak non-addend part of insn. */
8172 branch_bit = 0;
8173 switch (r_type)
8174 {
8175 default:
8176 break;
8177
8178 /* Branch taken prediction relocations. */
8179 case R_PPC_ADDR14_BRTAKEN:
8180 case R_PPC_REL14_BRTAKEN:
8181 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8182 /* Fall through. */
7619e7c7 8183
4cc11e76 8184 /* Branch not taken prediction relocations. */
7619e7c7
AM
8185 case R_PPC_ADDR14_BRNTAKEN:
8186 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8187 {
8188 bfd_vma insn;
7619e7c7 8189
91d6fa6a
NC
8190 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
8191 insn &= ~BRANCH_PREDICT_BIT;
8192 insn |= branch_bit;
7619e7c7 8193
91d6fa6a
NC
8194 from = (rel->r_offset
8195 + input_section->output_offset
8196 + input_section->output_section->vma);
7619e7c7 8197
91d6fa6a
NC
8198 /* Invert 'y' bit if not the default. */
8199 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8200 insn ^= BRANCH_PREDICT_BIT;
8201
8202 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8203 break;
8204 }
252b5132
RH
8205 }
8206
d3e454b9
AM
8207 if (ELIMINATE_COPY_RELOCS
8208 && h != NULL
8209 && !h->def_regular
8210 && h->protected_def
8211 && ppc_elf_hash_entry (h)->has_addr16_ha
8212 && ppc_elf_hash_entry (h)->has_addr16_lo
8213 && htab->params->pic_fixup > 0)
8214 {
8215 /* Convert lis;addi or lis;load/store accessing a protected
8216 variable defined in a shared library to PIC. */
8217 unsigned int insn;
8218
8219 if (r_type == R_PPC_ADDR16_HA)
8220 {
8221 insn = bfd_get_32 (output_bfd,
8222 contents + rel->r_offset - d_offset);
8223 if ((insn & (0x3f << 26)) == (15u << 26)
8224 && (insn & (0x1f << 16)) == 0 /* lis */)
8225 {
8226 bfd_byte *p;
8227 bfd_vma off;
8228 bfd_vma got_addr;
8229
8230 p = (contents + input_section->size
8231 - relax_info->workaround_size
8232 - relax_info->picfixup_size
8233 + picfixup_size);
8234 off = (p - contents) - (rel->r_offset - d_offset);
8235 if (off > 0x1fffffc || (off & 3) != 0)
8236 info->callbacks->einfo
8237 (_("%P: %H: fixup branch overflow\n"),
8238 input_bfd, input_section, rel->r_offset);
8239
8240 bfd_put_32 (output_bfd, B | off,
8241 contents + rel->r_offset - d_offset);
8242 got_addr = (htab->got->output_section->vma
8243 + htab->got->output_offset
8244 + (h->got.offset & ~1));
c316a17c
AM
8245 wrel->r_offset = (p - contents) + d_offset;
8246 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8247 wrel->r_addend = got_addr;
d3e454b9
AM
8248 insn &= ~0xffff;
8249 insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff;
8250 bfd_put_32 (output_bfd, insn, p);
8251
8252 /* Convert lis to lwz, loading address from GOT. */
8253 insn &= ~0xffff;
8254 insn ^= (32u ^ 15u) << 26;
8255 insn |= (insn & (0x1f << 21)) >> 5;
8256 insn |= got_addr & 0xffff;
8257 bfd_put_32 (output_bfd, insn, p + 4);
8258
8259 bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
8260 picfixup_size += 12;
8261
8262 /* Use one of the spare relocs, so --emit-relocs
8263 output is reasonable. */
8264 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8265 wrel++, rel++;
8266 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8267 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8268 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8269
8270 /* Continue on as if we had a got reloc, to output
8271 dynamic reloc. */
8272 r_type = R_PPC_GOT16_LO;
8273 }
8274 else
8275 info->callbacks->einfo
695344c0 8276 /* xgettext:c-format */
d3e454b9
AM
8277 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8278 input_bfd, input_section, rel->r_offset,
8279 "R_PPC_ADDR16_HA", insn);
8280 }
8281 else if (r_type == R_PPC_ADDR16_LO)
8282 {
8283 insn = bfd_get_32 (output_bfd,
8284 contents + rel->r_offset - d_offset);
8285 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8286 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8287 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8288 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8289 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8290 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8291 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8292 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8293 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8294 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8295 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8296 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8297 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8298 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8299 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8300 && (insn & 3) != 1)
8301 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8302 && ((insn & 3) == 0 || (insn & 3) == 3)))
8303 {
8304 /* Arrange to apply the reloc addend, if any. */
8305 relocation = 0;
8306 unresolved_reloc = FALSE;
8307 rel->r_info = ELF32_R_INFO (0, r_type);
8308 }
8309 else
8310 info->callbacks->einfo
695344c0 8311 /* xgettext:c-format */
d3e454b9
AM
8312 (_("%P: %H: error: %s with unexpected instruction %x\n"),
8313 input_bfd, input_section, rel->r_offset,
8314 "R_PPC_ADDR16_LO", insn);
8315 }
8316 }
8317
e054468f 8318 ifunc = NULL;
25f23106 8319 if (!htab->is_vxworks)
e054468f 8320 {
de972ffa
AM
8321 struct plt_entry *ent;
8322
e054468f
AM
8323 if (h != NULL)
8324 {
8325 if (h->type == STT_GNU_IFUNC)
8326 ifunc = &h->plt.plist;
8327 }
de972ffa
AM
8328 else if (local_got_offsets != NULL
8329 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8330 {
de972ffa 8331 struct plt_entry **local_plt;
e054468f 8332
de972ffa
AM
8333 local_plt = (struct plt_entry **) (local_got_offsets
8334 + symtab_hdr->sh_info);
8335 ifunc = local_plt + r_symndx;
e054468f 8336 }
e054468f 8337
de972ffa
AM
8338 ent = NULL;
8339 if (ifunc != NULL
0e1862bb 8340 && (!bfd_link_pic (info)
de972ffa
AM
8341 || is_branch_reloc (r_type)))
8342 {
8343 addend = 0;
0e1862bb 8344 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8345 addend = rel->r_addend;
8346 ent = find_plt_ent (ifunc, got2, addend);
8347 }
8348 if (ent != NULL)
8349 {
888a7fc3
AM
8350 if (bfd_link_pic (info)
8351 && ent->sec != got2
8352 && htab->plt_type != PLT_NEW
8353 && (!htab->elf.dynamic_sections_created
8354 || h == NULL
8355 || h->dynindx == -1))
8356 {
8357 /* Uh oh, we are going to create a pic glink stub
8358 for an ifunc (here for h == NULL and later in
8359 finish_dynamic_symbol for h != NULL), and
8360 apparently are using code compiled with
8361 -mbss-plt. The difficulty is that -mbss-plt code
8362 gives no indication via a magic PLTREL24 addend
8363 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8364 is pointing into a .got2 section (and how far
8365 into .got2). */
8366 info->callbacks->einfo
695344c0 8367 /* xgettext:c-format */
888a7fc3
AM
8368 (_("%X%P: %H: unsupported bss-plt -fPIC ifunc %s\n"),
8369 input_bfd, input_section, rel->r_offset, sym_name);
8370 }
e054468f
AM
8371 if (h == NULL && (ent->plt.offset & 1) == 0)
8372 {
8373 Elf_Internal_Rela rela;
8374 bfd_byte *loc;
8375
8376 rela.r_offset = (htab->iplt->output_section->vma
8377 + htab->iplt->output_offset
8378 + ent->plt.offset);
8379 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8380 rela.r_addend = relocation;
25f23106
AM
8381 loc = htab->reliplt->contents;
8382 loc += (htab->reliplt->reloc_count++
8383 * sizeof (Elf32_External_Rela));
e054468f
AM
8384 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8385
8386 ent->plt.offset |= 1;
8387 }
8388 if (h == NULL && (ent->glink_offset & 1) == 0)
8389 {
a7f2871e
AM
8390 unsigned char *p = ((unsigned char *) htab->glink->contents
8391 + ent->glink_offset);
8392 write_glink_stub (ent, htab->iplt, p, info);
e054468f
AM
8393 ent->glink_offset |= 1;
8394 }
8395
8396 unresolved_reloc = FALSE;
8397 if (htab->plt_type == PLT_NEW
8398 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8399 || h == NULL
8400 || h->dynindx == -1)
e054468f
AM
8401 relocation = (htab->glink->output_section->vma
8402 + htab->glink->output_offset
8403 + (ent->glink_offset & ~1));
8404 else
8405 relocation = (htab->plt->output_section->vma
8406 + htab->plt->output_offset
8407 + ent->plt.offset);
8408 }
8409 }
8410
7619e7c7
AM
8411 addend = rel->r_addend;
8412 tls_type = 0;
8413 howto = NULL;
55fd94b0
AM
8414 if (r_type < R_PPC_max)
8415 howto = ppc_elf_howto_table[r_type];
7619e7c7 8416 switch (r_type)
252b5132
RH
8417 {
8418 default:
25f53a85 8419 info->callbacks->einfo
695344c0 8420 /* xgettext:c-format */
8de848d8 8421 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8422 input_bfd, (int) r_type, sym_name);
252b5132
RH
8423
8424 bfd_set_error (bfd_error_bad_value);
b34976b6 8425 ret = FALSE;
c316a17c 8426 goto copy_reloc;
252b5132 8427
7619e7c7
AM
8428 case R_PPC_NONE:
8429 case R_PPC_TLS:
727fc41e
AM
8430 case R_PPC_TLSGD:
8431 case R_PPC_TLSLD:
7619e7c7
AM
8432 case R_PPC_EMB_MRKREF:
8433 case R_PPC_GNU_VTINHERIT:
8434 case R_PPC_GNU_VTENTRY:
c316a17c 8435 goto copy_reloc;
7595d193 8436
7619e7c7
AM
8437 /* GOT16 relocations. Like an ADDR16 using the symbol's
8438 address in the GOT as relocation value instead of the
8439 symbol's value itself. Also, create a GOT entry for the
8440 symbol and put the symbol value there. */
8441 case R_PPC_GOT_TLSGD16:
8442 case R_PPC_GOT_TLSGD16_LO:
8443 case R_PPC_GOT_TLSGD16_HI:
8444 case R_PPC_GOT_TLSGD16_HA:
8445 tls_type = TLS_TLS | TLS_GD;
8446 goto dogot;
8447
8448 case R_PPC_GOT_TLSLD16:
8449 case R_PPC_GOT_TLSLD16_LO:
8450 case R_PPC_GOT_TLSLD16_HI:
8451 case R_PPC_GOT_TLSLD16_HA:
8452 tls_type = TLS_TLS | TLS_LD;
8453 goto dogot;
8454
8455 case R_PPC_GOT_TPREL16:
8456 case R_PPC_GOT_TPREL16_LO:
8457 case R_PPC_GOT_TPREL16_HI:
8458 case R_PPC_GOT_TPREL16_HA:
8459 tls_type = TLS_TLS | TLS_TPREL;
8460 goto dogot;
8461
8462 case R_PPC_GOT_DTPREL16:
8463 case R_PPC_GOT_DTPREL16_LO:
8464 case R_PPC_GOT_DTPREL16_HI:
8465 case R_PPC_GOT_DTPREL16_HA:
8466 tls_type = TLS_TLS | TLS_DTPREL;
8467 goto dogot;
8468
8469 case R_PPC_GOT16:
8470 case R_PPC_GOT16_LO:
8471 case R_PPC_GOT16_HI:
8472 case R_PPC_GOT16_HA:
727fc41e 8473 tls_mask = 0;
7619e7c7
AM
8474 dogot:
8475 {
8476 /* Relocation is to the entry for this symbol in the global
8477 offset table. */
8478 bfd_vma off;
8479 bfd_vma *offp;
8480 unsigned long indx;
8481
8482 if (htab->got == NULL)
8483 abort ();
8484
8485 indx = 0;
8486 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8487 && (h == NULL
f5385ebf 8488 || !h->def_dynamic))
7619e7c7
AM
8489 offp = &htab->tlsld_got.offset;
8490 else if (h != NULL)
8491 {
8492 bfd_boolean dyn;
8493 dyn = htab->elf.dynamic_sections_created;
0e1862bb
L
8494 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
8495 || (bfd_link_pic (info)
7619e7c7
AM
8496 && SYMBOL_REFERENCES_LOCAL (info, h)))
8497 /* This is actually a static link, or it is a
8498 -Bsymbolic link and the symbol is defined
8499 locally, or the symbol was forced to be local
8500 because of a version file. */
8501 ;
8502 else
8503 {
14acf4dc 8504 BFD_ASSERT (h->dynindx != -1);
7619e7c7
AM
8505 indx = h->dynindx;
8506 unresolved_reloc = FALSE;
8507 }
8508 offp = &h->got.offset;
8509 }
8510 else
8511 {
8512 if (local_got_offsets == NULL)
8513 abort ();
8514 offp = &local_got_offsets[r_symndx];
8515 }
8516
8517 /* The offset must always be a multiple of 4. We use the
8518 least significant bit to record whether we have already
8519 processed this entry. */
8520 off = *offp;
8521 if ((off & 1) != 0)
8522 off &= ~1;
8523 else
8524 {
70bccea4
AM
8525 unsigned int tls_m = (tls_mask
8526 & (TLS_LD | TLS_GD | TLS_DTPREL
8527 | TLS_TPREL | TLS_TPRELGD));
8528
8529 if (offp == &htab->tlsld_got.offset)
8530 tls_m = TLS_LD;
8531 else if (h == NULL
f5385ebf 8532 || !h->def_dynamic)
70bccea4
AM
8533 tls_m &= ~TLS_LD;
8534
8535 /* We might have multiple got entries for this sym.
8536 Initialize them all. */
8537 do
7619e7c7 8538 {
70bccea4
AM
8539 int tls_ty = 0;
8540
8541 if ((tls_m & TLS_LD) != 0)
7619e7c7 8542 {
70bccea4
AM
8543 tls_ty = TLS_TLS | TLS_LD;
8544 tls_m &= ~TLS_LD;
8545 }
8546 else if ((tls_m & TLS_GD) != 0)
8547 {
8548 tls_ty = TLS_TLS | TLS_GD;
8549 tls_m &= ~TLS_GD;
8550 }
8551 else if ((tls_m & TLS_DTPREL) != 0)
8552 {
8553 tls_ty = TLS_TLS | TLS_DTPREL;
8554 tls_m &= ~TLS_DTPREL;
8555 }
8556 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8557 {
8558 tls_ty = TLS_TLS | TLS_TPREL;
8559 tls_m = 0;
7619e7c7 8560 }
7619e7c7 8561
70bccea4 8562 /* Generate relocs for the dynamic linker. */
0e1862bb 8563 if ((bfd_link_pic (info) || indx != 0)
d6e14abc
AM
8564 && (offp == &htab->tlsld_got.offset
8565 || h == NULL
4e795f50
AM
8566 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8567 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 8568 {
91e21fb7 8569 asection *rsec = htab->relgot;
91d6fa6a 8570 bfd_byte * loc;
91e21fb7 8571
0bed072f
AM
8572 if (ifunc != NULL)
8573 rsec = htab->reliplt;
70bccea4
AM
8574 outrel.r_offset = (htab->got->output_section->vma
8575 + htab->got->output_offset
8576 + off);
e515b051 8577 outrel.r_addend = 0;
70bccea4
AM
8578 if (tls_ty & (TLS_LD | TLS_GD))
8579 {
8580 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8581 if (tls_ty == (TLS_TLS | TLS_GD))
8582 {
25f23106
AM
8583 loc = rsec->contents;
8584 loc += (rsec->reloc_count++
70bccea4
AM
8585 * sizeof (Elf32_External_Rela));
8586 bfd_elf32_swap_reloca_out (output_bfd,
8587 &outrel, loc);
e515b051 8588 outrel.r_offset += 4;
70bccea4
AM
8589 outrel.r_info
8590 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8591 }
8592 }
8593 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8594 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8595 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8596 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8597 else if (indx != 0)
70bccea4 8598 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8599 else if (ifunc != NULL)
8600 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8601 else
8602 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8603 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8604 {
8605 outrel.r_addend += relocation;
8606 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8607 {
8608 if (htab->elf.tls_sec == NULL)
8609 outrel.r_addend = 0;
8610 else
8611 outrel.r_addend -= htab->elf.tls_sec->vma;
8612 }
e515b051 8613 }
25f23106
AM
8614 loc = rsec->contents;
8615 loc += (rsec->reloc_count++
70bccea4
AM
8616 * sizeof (Elf32_External_Rela));
8617 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8618 }
8619
70bccea4
AM
8620 /* Init the .got section contents if we're not
8621 emitting a reloc. */
8622 else
7619e7c7 8623 {
70bccea4
AM
8624 bfd_vma value = relocation;
8625
7b609f53
AM
8626 if (tls_ty == (TLS_TLS | TLS_LD))
8627 value = 1;
8628 else if (tls_ty != 0)
70bccea4 8629 {
989f9879
AM
8630 if (htab->elf.tls_sec == NULL)
8631 value = 0;
8632 else
8633 {
8634 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
8635 if (tls_ty == (TLS_TLS | TLS_TPREL))
8636 value += DTP_OFFSET - TP_OFFSET;
8637 }
70bccea4 8638
7b609f53
AM
8639 if (tls_ty == (TLS_TLS | TLS_GD))
8640 {
8641 bfd_put_32 (output_bfd, value,
8642 htab->got->contents + off + 4);
8643 value = 1;
8644 }
70bccea4 8645 }
70bccea4
AM
8646 bfd_put_32 (output_bfd, value,
8647 htab->got->contents + off);
7619e7c7 8648 }
70bccea4
AM
8649
8650 off += 4;
8651 if (tls_ty & (TLS_LD | TLS_GD))
8652 off += 4;
7619e7c7 8653 }
70bccea4
AM
8654 while (tls_m != 0);
8655
8656 off = *offp;
8657 *offp = off | 1;
7619e7c7
AM
8658 }
8659
8660 if (off >= (bfd_vma) -2)
8661 abort ();
8662
70bccea4
AM
8663 if ((tls_type & TLS_TLS) != 0)
8664 {
8665 if (tls_type != (TLS_TLS | TLS_LD))
8666 {
8667 if ((tls_mask & TLS_LD) != 0
8668 && !(h == NULL
f5385ebf 8669 || !h->def_dynamic))
70bccea4
AM
8670 off += 8;
8671 if (tls_type != (TLS_TLS | TLS_GD))
8672 {
8673 if ((tls_mask & TLS_GD) != 0)
8674 off += 8;
8675 if (tls_type != (TLS_TLS | TLS_DTPREL))
8676 {
8677 if ((tls_mask & TLS_DTPREL) != 0)
8678 off += 4;
8679 }
8680 }
8681 }
8682 }
8683
d3e454b9
AM
8684 /* If here for a picfixup, we're done. */
8685 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8686 goto copy_reloc;
d3e454b9 8687
e87d4038
AM
8688 relocation = (htab->got->output_section->vma
8689 + htab->got->output_offset
8690 + off
8691 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8692
8693 /* Addends on got relocations don't make much sense.
8694 x+off@got is actually x@got+off, and since the got is
8695 generated by a hash table traversal, the value in the
8696 got at entry m+n bears little relation to the entry m. */
8697 if (addend != 0)
25f53a85 8698 info->callbacks->einfo
695344c0 8699 /* xgettext:c-format */
8de848d8 8700 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8701 input_bfd, input_section, rel->r_offset,
7b609f53 8702 howto->name,
7619e7c7
AM
8703 sym_name);
8704 }
86c95733 8705 break;
7619e7c7 8706
86c95733 8707 /* Relocations that need no special processing. */
7619e7c7 8708 case R_PPC_LOCAL24PC:
252b5132
RH
8709 /* It makes no sense to point a local relocation
8710 at a symbol not in this object. */
7b609f53 8711 if (unresolved_reloc)
252b5132 8712 {
1a72702b
AM
8713 (*info->callbacks->undefined_symbol) (info,
8714 h->root.root.string,
8715 input_bfd,
8716 input_section,
8717 rel->r_offset,
8718 TRUE);
c316a17c 8719 goto copy_reloc;
252b5132 8720 }
888a7fc3
AM
8721 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8722 {
8723 /* @local on an ifunc does not really make sense since
8724 the ifunc resolver can take you anywhere. More
8725 seriously, calls to ifuncs must go through a plt call
8726 stub, and for pic the plt call stubs uses r30 to
8727 access the PLT. The problem is that a call that is
8728 local won't have the +32k reloc addend trick marking
8729 -fPIC code, so the linker won't know whether r30 is
8730 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8731 /* xgettext:c-format */
888a7fc3
AM
8732 info->callbacks->einfo (_("%X%P: %H: @local call to ifunc %s\n"),
8733 input_bfd, input_section, rel->r_offset,
8734 h->root.root.string);
8735 }
252b5132
RH
8736 break;
8737
7619e7c7
AM
8738 case R_PPC_DTPREL16:
8739 case R_PPC_DTPREL16_LO:
8740 case R_PPC_DTPREL16_HI:
8741 case R_PPC_DTPREL16_HA:
989f9879
AM
8742 if (htab->elf.tls_sec != NULL)
8743 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8744 break;
8745
70bccea4
AM
8746 /* Relocations that may need to be propagated if this is a shared
8747 object. */
7619e7c7
AM
8748 case R_PPC_TPREL16:
8749 case R_PPC_TPREL16_LO:
8750 case R_PPC_TPREL16_HI:
8751 case R_PPC_TPREL16_HA:
766bc656
AM
8752 if (h != NULL
8753 && h->root.type == bfd_link_hash_undefweak
8754 && h->dynindx == -1)
8755 {
8756 /* Make this relocation against an undefined weak symbol
8757 resolve to zero. This is really just a tweak, since
8758 code using weak externs ought to check that they are
8759 defined before using them. */
8760 bfd_byte *p = contents + rel->r_offset - d_offset;
8761 unsigned int insn = bfd_get_32 (output_bfd, p);
8762 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8763 if (insn != 0)
8764 bfd_put_32 (output_bfd, insn, p);
8765 break;
8766 }
989f9879
AM
8767 if (htab->elf.tls_sec != NULL)
8768 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8769 /* The TPREL16 relocs shouldn't really be used in shared
8770 libs as they will result in DT_TEXTREL being set, but
8771 support them anyway. */
8772 goto dodyn;
8773
8774 case R_PPC_TPREL32:
989f9879
AM
8775 if (htab->elf.tls_sec != NULL)
8776 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8777 goto dodyn;
8778
8779 case R_PPC_DTPREL32:
989f9879
AM
8780 if (htab->elf.tls_sec != NULL)
8781 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8782 goto dodyn;
8783
e515b051
AM
8784 case R_PPC_DTPMOD32:
8785 relocation = 1;
8786 addend = 0;
8787 goto dodyn;
8788
d7128ce4
AM
8789 case R_PPC_REL16:
8790 case R_PPC_REL16_LO:
8791 case R_PPC_REL16_HI:
8792 case R_PPC_REL16_HA:
a680de9a 8793 case R_PPC_REL16DX_HA:
d7128ce4
AM
8794 break;
8795
7619e7c7 8796 case R_PPC_REL32:
625af618
AM
8797 if (h == NULL || h == htab->elf.hgot)
8798 break;
8799 /* fall through */
8800
8801 case R_PPC_ADDR32:
8802 case R_PPC_ADDR16:
8803 case R_PPC_ADDR16_LO:
8804 case R_PPC_ADDR16_HI:
8805 case R_PPC_ADDR16_HA:
8806 case R_PPC_UADDR32:
8807 case R_PPC_UADDR16:
8808 goto dodyn;
8809
b9c361e0
JL
8810 case R_PPC_VLE_REL8:
8811 case R_PPC_VLE_REL15:
8812 case R_PPC_VLE_REL24:
625af618 8813 case R_PPC_REL24:
7619e7c7
AM
8814 case R_PPC_REL14:
8815 case R_PPC_REL14_BRTAKEN:
8816 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8817 /* If these relocations are not to a named symbol, they can be
8818 handled right here, no need to bother the dynamic linker. */
89200bf8 8819 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8820 || h == htab->elf.hgot)
252b5132 8821 break;
70bccea4 8822 /* fall through */
252b5132 8823
7619e7c7 8824 case R_PPC_ADDR24:
7619e7c7
AM
8825 case R_PPC_ADDR14:
8826 case R_PPC_ADDR14_BRTAKEN:
8827 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8828 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8829 break;
8830 /* fall through */
8831
7619e7c7 8832 dodyn:
3348747a
NS
8833 if ((input_section->flags & SEC_ALLOC) == 0
8834 || is_vxworks_tls)
c87b5a93 8835 break;
c87b5a93 8836
0e1862bb 8837 if ((bfd_link_pic (info)
89200bf8
AM
8838 && !(h != NULL
8839 && ((h->root.type == bfd_link_hash_undefined
8840 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8841 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8842 || (h->root.type == bfd_link_hash_undefweak
8843 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 8844 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8845 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8846 || (ELIMINATE_COPY_RELOCS
0e1862bb 8847 && !bfd_link_pic (info)
ee05f2fe
AM
8848 && h != NULL
8849 && h->dynindx != -1
f5385ebf 8850 && !h->non_got_ref
d3e454b9
AM
8851 && !h->def_regular
8852 && !(h->protected_def
8853 && ppc_elf_hash_entry (h)->has_addr16_ha
8854 && ppc_elf_hash_entry (h)->has_addr16_lo
8855 && htab->params->pic_fixup > 0)))
252b5132 8856 {
0bb2d96a 8857 int skip;
f95f8542
AM
8858 bfd_byte *loc;
8859 asection *sreloc;
252b5132 8860#ifdef DEBUG
55fd94b0
AM
8861 fprintf (stderr, "ppc_elf_relocate_section needs to "
8862 "create relocation for %s\n",
70bccea4
AM
8863 (h && h->root.root.string
8864 ? h->root.root.string : "<unknown>"));
252b5132
RH
8865#endif
8866
8867 /* When generating a shared object, these relocations
70bccea4
AM
8868 are copied into the output file to be resolved at run
8869 time. */
f95f8542
AM
8870 sreloc = elf_section_data (input_section)->sreloc;
8871 if (ifunc)
8872 sreloc = htab->reliplt;
252b5132 8873 if (sreloc == NULL)
f95f8542 8874 return FALSE;
252b5132 8875
0bb2d96a 8876 skip = 0;
5b914448
AM
8877 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8878 input_section,
8879 rel->r_offset);
0bb2d96a
JJ
8880 if (outrel.r_offset == (bfd_vma) -1
8881 || outrel.r_offset == (bfd_vma) -2)
8882 skip = (int) outrel.r_offset;
252b5132
RH
8883 outrel.r_offset += (input_section->output_section->vma
8884 + input_section->output_offset);
8885
8886 if (skip)
8887 memset (&outrel, 0, sizeof outrel);
89200bf8
AM
8888 else if ((h != NULL
8889 && (h->root.type == bfd_link_hash_undefined
8890 || h->root.type == bfd_link_hash_undefweak))
8891 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8892 {
14acf4dc 8893 BFD_ASSERT (h->dynindx != -1);
7619e7c7 8894 unresolved_reloc = FALSE;
252b5132
RH
8895 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8896 outrel.r_addend = rel->r_addend;
8897 }
8898 else
8899 {
47388f4c
AM
8900 outrel.r_addend = relocation + rel->r_addend;
8901
25f23106 8902 if (r_type != R_PPC_ADDR32)
252b5132 8903 {
89200bf8 8904 long indx = 0;
252b5132 8905
25f23106
AM
8906 if (ifunc != NULL)
8907 {
8908 /* If we get here when building a static
8909 executable, then the libc startup function
8910 responsible for applying indirect function
8911 relocations is going to complain about
8912 the reloc type.
8913 If we get here when building a dynamic
8914 executable, it will be because we have
8915 a text relocation. The dynamic loader
8916 will set the text segment writable and
8917 non-executable to apply text relocations.
8918 So we'll segfault when trying to run the
8919 indirection function to resolve the reloc. */
25f53a85 8920 info->callbacks->einfo
695344c0 8921 /* xgettext:c-format */
8de848d8 8922 (_("%P: %H: relocation %s for indirect "
25f53a85
AM
8923 "function %s unsupported\n"),
8924 input_bfd, input_section, rel->r_offset,
25f23106
AM
8925 howto->name,
8926 sym_name);
8927 ret = FALSE;
8928 }
cf35638d 8929 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8930 ;
252b5132
RH
8931 else if (sec == NULL || sec->owner == NULL)
8932 {
8933 bfd_set_error (bfd_error_bad_value);
89200bf8 8934 ret = FALSE;
252b5132
RH
8935 }
8936 else
8937 {
8938 asection *osec;
8939
47388f4c
AM
8940 /* We are turning this relocation into one
8941 against a section symbol. It would be
8942 proper to subtract the symbol's value,
8943 osec->vma, from the emitted reloc addend,
25f23106
AM
8944 but ld.so expects buggy relocs.
8945 FIXME: Why not always use a zero index? */
252b5132
RH
8946 osec = sec->output_section;
8947 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8948 if (indx == 0)
8949 {
8950 osec = htab->elf.text_index_section;
8951 indx = elf_section_data (osec)->dynindx;
8952 }
8953 BFD_ASSERT (indx != 0);
252b5132 8954#ifdef DEBUG
74541ad4 8955 if (indx == 0)
e460dd0d 8956 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8957 indx, osec->name, osec->flags,
8958 h->root.root.string);
252b5132
RH
8959#endif
8960 }
8961
8962 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8963 }
25f23106
AM
8964 else if (ifunc != NULL)
8965 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8966 else
8967 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8968 }
8969
947216bf
AM
8970 loc = sreloc->contents;
8971 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8972 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8973
2243deae 8974 if (skip == -1)
c316a17c 8975 goto copy_reloc;
2243deae
L
8976
8977 /* This reloc will be computed at runtime. We clear the memory
8978 so that it contains predictable value. */
8979 if (! skip
8980 && ((input_section->flags & SEC_ALLOC) != 0
8981 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8982 {
8983 relocation = howto->pc_relative ? outrel.r_offset : 0;
8984 addend = 0;
8985 break;
8986 }
252b5132 8987 }
252b5132
RH
8988 break;
8989
32af9f6e
AM
8990 case R_PPC_RELAX_PLT:
8991 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
8992 if (h != NULL)
8993 {
32af9f6e
AM
8994 struct plt_entry *ent;
8995 bfd_vma got2_addend = 0;
8996
8997 if (r_type == R_PPC_RELAX_PLTREL24)
8998 {
0e1862bb 8999 if (bfd_link_pic (info))
32af9f6e
AM
9000 got2_addend = addend;
9001 addend = 0;
9002 }
9003 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
9004 if (htab->plt_type == PLT_NEW)
9005 relocation = (htab->glink->output_section->vma
9006 + htab->glink->output_offset
9007 + ent->glink_offset);
9008 else
9009 relocation = (htab->plt->output_section->vma
9010 + htab->plt->output_offset
9011 + ent->plt.offset);
9012 }
1a0670f3 9013 /* Fall through. */
b4a38de6 9014
32af9f6e 9015 case R_PPC_RELAX:
9abc968f 9016 {
53291d1f
AM
9017 const int *stub;
9018 size_t size;
9019 size_t insn_offset = rel->r_offset;
9020 unsigned int insn;
9abc968f 9021
0e1862bb 9022 if (bfd_link_pic (info))
53291d1f
AM
9023 {
9024 relocation -= (input_section->output_section->vma
9025 + input_section->output_offset
9026 + rel->r_offset - 4);
9027 stub = shared_stub_entry;
9028 bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
9029 bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
9030 bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
9031 stub += 3;
9032 size = ARRAY_SIZE (shared_stub_entry) - 3;
9033 }
9034 else
9035 {
9036 stub = stub_entry;
9037 size = ARRAY_SIZE (stub_entry);
9038 }
9abc968f 9039
9abc968f 9040 relocation += addend;
0e1862bb 9041 if (bfd_link_relocatable (info))
53291d1f
AM
9042 relocation = 0;
9043
9044 /* First insn is HA, second is LO. */
9045 insn = *stub++;
9046 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
9047 bfd_put_32 (output_bfd, insn, contents + insn_offset);
9048 insn_offset += 4;
9049
9050 insn = *stub++;
9051 insn |= relocation & 0xffff;
9052 bfd_put_32 (output_bfd, insn, contents + insn_offset);
9053 insn_offset += 4;
9054 size -= 2;
9055
9056 while (size != 0)
9057 {
9058 insn = *stub++;
9059 --size;
9060 bfd_put_32 (output_bfd, insn, contents + insn_offset);
9061 insn_offset += 4;
9062 }
9bc4e62b
NS
9063
9064 /* Rewrite the reloc and convert one of the trailing nop
9065 relocs to describe this relocation. */
9066 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9067 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
9068 wrel->r_offset = rel->r_offset + d_offset;
9069 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9070 wrel->r_addend = rel->r_addend;
9071 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9072 wrel++, rel++;
9073 wrel->r_offset += 4;
9074 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 9075 }
8517fae7 9076 continue;
deaaf2f3 9077
70bccea4 9078 /* Indirect .sdata relocation. */
7619e7c7 9079 case R_PPC_EMB_SDAI16:
c9a2f333 9080 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
9081 if (!is_static_defined (htab->sdata[0].sym))
9082 {
9083 unresolved_reloc = TRUE;
9084 break;
9085 }
7619e7c7 9086 relocation
76750a2f
AM
9087 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9088 h, relocation, rel);
bd6c6e2b 9089 addend = 0;
252b5132
RH
9090 break;
9091
70bccea4 9092 /* Indirect .sdata2 relocation. */
7619e7c7 9093 case R_PPC_EMB_SDA2I16:
c9a2f333 9094 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9095 if (!is_static_defined (htab->sdata[1].sym))
9096 {
9097 unresolved_reloc = TRUE;
9098 break;
9099 }
7619e7c7 9100 relocation
76750a2f
AM
9101 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9102 h, relocation, rel);
bd6c6e2b 9103 addend = 0;
252b5132
RH
9104 break;
9105
70bccea4
AM
9106 /* Handle the TOC16 reloc. We want to use the offset within the .got
9107 section, not the actual VMA. This is appropriate when generating
9108 an embedded ELF object, for which the .got section acts like the
9109 AIX .toc section. */
7619e7c7 9110 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9111 if (sec == NULL || sec->output_section == NULL)
9112 {
9113 unresolved_reloc = TRUE;
9114 break;
9115 }
a0f49396
NC
9116 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9117 ".got") == 0
9118 || strcmp (bfd_get_section_name (sec->owner, sec),
9119 ".cgot") == 0);
252b5132 9120
3b4f3a11 9121 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9122 break;
9123
7619e7c7 9124 case R_PPC_PLTREL24:
f75e0e33
AM
9125 if (h != NULL && ifunc == NULL)
9126 {
cbf95972
AM
9127 struct plt_entry *ent;
9128
9129 ent = find_plt_ent (&h->plt.plist, got2,
9130 bfd_link_pic (info) ? addend : 0);
f75e0e33
AM
9131 if (ent == NULL
9132 || htab->plt == NULL)
9133 {
9134 /* We didn't make a PLT entry for this symbol. This
9135 happens when statically linking PIC code, or when
9136 using -Bsymbolic. */
9137 }
9138 else
9139 {
9140 /* Relocation is to the entry for this symbol in the
9141 procedure linkage table. */
9142 unresolved_reloc = FALSE;
9143 if (htab->plt_type == PLT_NEW)
9144 relocation = (htab->glink->output_section->vma
9145 + htab->glink->output_offset
9146 + ent->glink_offset);
9147 else
9148 relocation = (htab->plt->output_section->vma
9149 + htab->plt->output_offset
9150 + ent->plt.offset);
9151 }
9152 }
252b5132 9153
f75e0e33
AM
9154 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9155 addend specifies the GOT pointer offset within .got2.
9156 Don't apply it to the relocation field. */
9157 addend = 0;
8da6118f 9158 break;
252b5132 9159
70bccea4 9160 /* Relocate against _SDA_BASE_. */
7619e7c7 9161 case R_PPC_SDAREL16:
252b5132
RH
9162 {
9163 const char *name;
bd6c6e2b 9164 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9165
bd6c6e2b
AM
9166 if (sec == NULL
9167 || sec->output_section == NULL
9168 || !is_static_defined (sda))
3b4f3a11
AM
9169 {
9170 unresolved_reloc = TRUE;
9171 break;
9172 }
bd6c6e2b 9173 addend -= SYM_VAL (sda);
3b4f3a11 9174
a0f49396 9175 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9176 if (!(strcmp (name, ".sdata") == 0
9177 || strcmp (name, ".sbss") == 0))
252b5132 9178 {
25f53a85 9179 info->callbacks->einfo
695344c0 9180 /* xgettext:c-format */
8de848d8 9181 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9182 "in the wrong output section (%s)\n"),
d003868e 9183 input_bfd,
55fd94b0
AM
9184 sym_name,
9185 howto->name,
9186 name);
252b5132 9187 }
252b5132
RH
9188 }
9189 break;
9190
70bccea4 9191 /* Relocate against _SDA2_BASE_. */
7619e7c7 9192 case R_PPC_EMB_SDA2REL:
252b5132
RH
9193 {
9194 const char *name;
bd6c6e2b 9195 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9196
bd6c6e2b
AM
9197 if (sec == NULL
9198 || sec->output_section == NULL
9199 || !is_static_defined (sda))
3b4f3a11
AM
9200 {
9201 unresolved_reloc = TRUE;
9202 break;
9203 }
bd6c6e2b 9204 addend -= SYM_VAL (sda);
3b4f3a11 9205
a0f49396 9206 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9207 if (!(strcmp (name, ".sdata2") == 0
9208 || strcmp (name, ".sbss2") == 0))
252b5132 9209 {
25f53a85 9210 info->callbacks->einfo
695344c0 9211 /* xgettext:c-format */
8de848d8 9212 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9213 "in the wrong output section (%s)\n"),
d003868e 9214 input_bfd,
55fd94b0
AM
9215 sym_name,
9216 howto->name,
9217 name);
252b5132 9218 }
252b5132
RH
9219 }
9220 break;
9221
b9c361e0 9222 case R_PPC_VLE_LO16A:
86c95733
AM
9223 relocation = relocation + addend;
9224 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9225 relocation, split16a_type);
c316a17c 9226 goto copy_reloc;
b9c361e0
JL
9227
9228 case R_PPC_VLE_LO16D:
86c95733
AM
9229 relocation = relocation + addend;
9230 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9231 relocation, split16d_type);
c316a17c 9232 goto copy_reloc;
b9c361e0
JL
9233
9234 case R_PPC_VLE_HI16A:
86c95733
AM
9235 relocation = (relocation + addend) >> 16;
9236 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9237 relocation, split16a_type);
c316a17c 9238 goto copy_reloc;
b9c361e0
JL
9239
9240 case R_PPC_VLE_HI16D:
86c95733
AM
9241 relocation = (relocation + addend) >> 16;
9242 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9243 relocation, split16d_type);
c316a17c 9244 goto copy_reloc;
b9c361e0
JL
9245
9246 case R_PPC_VLE_HA16A:
86c95733
AM
9247 relocation = (relocation + addend + 0x8000) >> 16;
9248 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9249 relocation, split16a_type);
c316a17c 9250 goto copy_reloc;
b9c361e0
JL
9251
9252 case R_PPC_VLE_HA16D:
86c95733
AM
9253 relocation = (relocation + addend + 0x8000) >> 16;
9254 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9255 relocation, split16d_type);
c316a17c 9256 goto copy_reloc;
b9c361e0 9257
70bccea4 9258 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9259 case R_PPC_EMB_SDA21:
b9c361e0 9260 case R_PPC_VLE_SDA21:
7619e7c7 9261 case R_PPC_EMB_RELSDA:
b9c361e0 9262 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9263 {
9264 const char *name;
9265 int reg;
86c95733 9266 unsigned int insn;
bd6c6e2b 9267 struct elf_link_hash_entry *sda = NULL;
252b5132 9268
3b4f3a11
AM
9269 if (sec == NULL || sec->output_section == NULL)
9270 {
9271 unresolved_reloc = TRUE;
9272 break;
9273 }
9274
a0f49396 9275 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9276 if (strcmp (name, ".sdata") == 0
9277 || strcmp (name, ".sbss") == 0)
252b5132
RH
9278 {
9279 reg = 13;
bd6c6e2b 9280 sda = htab->sdata[0].sym;
252b5132 9281 }
93d1b056
AM
9282 else if (strcmp (name, ".sdata2") == 0
9283 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9284 {
9285 reg = 2;
bd6c6e2b 9286 sda = htab->sdata[1].sym;
252b5132 9287 }
8da6118f
KH
9288 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9289 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9290 {
9291 reg = 0;
9292 }
252b5132
RH
9293 else
9294 {
25f53a85 9295 info->callbacks->einfo
695344c0 9296 /* xgettext:c-format */
8de848d8 9297 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9298 "in the wrong output section (%s)\n"),
d003868e 9299 input_bfd,
55fd94b0
AM
9300 sym_name,
9301 howto->name,
9302 name);
252b5132
RH
9303
9304 bfd_set_error (bfd_error_bad_value);
b34976b6 9305 ret = FALSE;
c316a17c 9306 goto copy_reloc;
252b5132
RH
9307 }
9308
bd6c6e2b
AM
9309 if (sda != NULL)
9310 {
9311 if (!is_static_defined (sda))
9312 {
9313 unresolved_reloc = TRUE;
9314 break;
9315 }
9316 addend -= SYM_VAL (sda);
9317 }
9318
86c95733 9319 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
b9c361e0
JL
9320 if (reg == 0
9321 && (r_type == R_PPC_VLE_SDA21
9322 || r_type == R_PPC_VLE_SDA21_LO))
9323 {
86c95733
AM
9324 relocation = relocation + addend;
9325 addend = 0;
9326
9327 /* Force e_li insn, keeping RT from original insn. */
9328 insn &= 0x1f << 21;
9329 insn |= 28u << 26;
9330
9331 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9332 /* Top 4 bits of value to 17..20. */
9333 insn |= (relocation & 0xf0000) >> 5;
9334 /* Next 5 bits of the value to 11..15. */
9335 insn |= (relocation & 0xf800) << 5;
9336 /* And the final 11 bits of the value to bits 21 to 31. */
9337 insn |= relocation & 0x7ff;
9338
c3301df1
AM
9339 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
9340
9341 if (r_type == R_PPC_VLE_SDA21
9342 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9343 goto overflow;
c316a17c 9344 goto copy_reloc;
b9c361e0
JL
9345 }
9346 else if (r_type == R_PPC_EMB_SDA21
9347 || r_type == R_PPC_VLE_SDA21
9348 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9349 {
86c95733 9350 /* Fill in register field. */
252b5132 9351 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9352 }
86c95733 9353 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH
9354 }
9355 break;
9356
b9c361e0
JL
9357 case R_PPC_VLE_SDAREL_LO16A:
9358 case R_PPC_VLE_SDAREL_LO16D:
9359 case R_PPC_VLE_SDAREL_HI16A:
9360 case R_PPC_VLE_SDAREL_HI16D:
9361 case R_PPC_VLE_SDAREL_HA16A:
9362 case R_PPC_VLE_SDAREL_HA16D:
9363 {
9364 bfd_vma value;
9365 const char *name;
9366 //int reg;
9367 struct elf_link_hash_entry *sda = NULL;
9368
9369 if (sec == NULL || sec->output_section == NULL)
9370 {
9371 unresolved_reloc = TRUE;
9372 break;
9373 }
9374
a0f49396 9375 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9376 if (strcmp (name, ".sdata") == 0
9377 || strcmp (name, ".sbss") == 0)
b9c361e0
JL
9378 {
9379 //reg = 13;
9380 sda = htab->sdata[0].sym;
9381 }
93d1b056
AM
9382 else if (strcmp (name, ".sdata2") == 0
9383 || strcmp (name, ".sbss2") == 0)
b9c361e0
JL
9384 {
9385 //reg = 2;
9386 sda = htab->sdata[1].sym;
9387 }
9388 else
9389 {
4eca0228 9390 _bfd_error_handler
695344c0 9391 /* xgettext:c-format */
b9c361e0
JL
9392 (_("%B: the target (%s) of a %s relocation is "
9393 "in the wrong output section (%s)"),
9394 input_bfd,
9395 sym_name,
9396 howto->name,
9397 name);
9398
9399 bfd_set_error (bfd_error_bad_value);
9400 ret = FALSE;
c316a17c 9401 goto copy_reloc;
b9c361e0
JL
9402 }
9403
9404 if (sda != NULL)
9405 {
9406 if (!is_static_defined (sda))
9407 {
9408 unresolved_reloc = TRUE;
9409 break;
9410 }
9411 }
9412
86c95733
AM
9413 value = (sda->root.u.def.section->output_section->vma
9414 + sda->root.u.def.section->output_offset
9415 + addend);
9416
9417 if (r_type == R_PPC_VLE_SDAREL_LO16A)
9418 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9419 value, split16a_type);
9420 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
9421 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9422 value, split16d_type);
9423 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9424 {
86c95733
AM
9425 value = value >> 16;
9426 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9427 value, split16a_type);
b9c361e0 9428 }
86c95733 9429 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9430 {
86c95733
AM
9431 value = value >> 16;
9432 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9433 value, split16d_type);
b9c361e0 9434 }
86c95733 9435 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9436 {
86c95733
AM
9437 value = (value + 0x8000) >> 16;
9438 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9439 value, split16a_type);
b9c361e0 9440 }
86c95733 9441 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9442 {
86c95733
AM
9443 value = (value + 0x8000) >> 16;
9444 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
9445 value, split16d_type);
b9c361e0
JL
9446 }
9447 }
c316a17c 9448 goto copy_reloc;
b9c361e0 9449
70bccea4 9450 /* Relocate against the beginning of the section. */
7619e7c7
AM
9451 case R_PPC_SECTOFF:
9452 case R_PPC_SECTOFF_LO:
9453 case R_PPC_SECTOFF_HI:
9454 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9455 if (sec == NULL || sec->output_section == NULL)
9456 {
9457 unresolved_reloc = TRUE;
9458 break;
9459 }
252b5132 9460 addend -= sec->output_section->vma;
252b5132
RH
9461 break;
9462
70bccea4 9463 /* Negative relocations. */
7619e7c7
AM
9464 case R_PPC_EMB_NADDR32:
9465 case R_PPC_EMB_NADDR16:
9466 case R_PPC_EMB_NADDR16_LO:
9467 case R_PPC_EMB_NADDR16_HI:
9468 case R_PPC_EMB_NADDR16_HA:
8da6118f 9469 addend -= 2 * relocation;
252b5132
RH
9470 break;
9471
7619e7c7
AM
9472 case R_PPC_COPY:
9473 case R_PPC_GLOB_DAT:
9474 case R_PPC_JMP_SLOT:
9475 case R_PPC_RELATIVE:
e054468f 9476 case R_PPC_IRELATIVE:
7619e7c7
AM
9477 case R_PPC_PLT32:
9478 case R_PPC_PLTREL32:
9479 case R_PPC_PLT16_LO:
9480 case R_PPC_PLT16_HI:
9481 case R_PPC_PLT16_HA:
9482 case R_PPC_ADDR30:
9483 case R_PPC_EMB_RELSEC16:
9484 case R_PPC_EMB_RELST_LO:
9485 case R_PPC_EMB_RELST_HI:
9486 case R_PPC_EMB_RELST_HA:
9487 case R_PPC_EMB_BIT_FLD:
25f53a85 9488 info->callbacks->einfo
695344c0 9489 /* xgettext:c-format */
8de848d8 9490 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9491 input_bfd,
7619e7c7
AM
9492 howto->name,
9493 sym_name);
252b5132
RH
9494
9495 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9496 ret = FALSE;
c316a17c 9497 goto copy_reloc;
7619e7c7 9498 }
252b5132 9499
7619e7c7
AM
9500 /* Do any further special processing. */
9501 switch (r_type)
9502 {
9503 default:
9504 break;
9505
9506 case R_PPC_ADDR16_HA:
d7128ce4 9507 case R_PPC_REL16_HA:
a680de9a 9508 case R_PPC_REL16DX_HA:
7619e7c7
AM
9509 case R_PPC_SECTOFF_HA:
9510 case R_PPC_TPREL16_HA:
9511 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9512 case R_PPC_EMB_NADDR16_HA:
9513 case R_PPC_EMB_RELST_HA:
9514 /* It's just possible that this symbol is a weak symbol
7b609f53 9515 that's not actually defined anywhere. In that case,
7619e7c7
AM
9516 'sec' would be NULL, and we should leave the symbol
9517 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9518 if (sec == NULL)
9519 break;
1a0670f3 9520 /* Fall through. */
5c5f6e17
AM
9521
9522 case R_PPC_PLT16_HA:
9523 case R_PPC_GOT16_HA:
9524 case R_PPC_GOT_TLSGD16_HA:
9525 case R_PPC_GOT_TLSLD16_HA:
9526 case R_PPC_GOT_TPREL16_HA:
9527 case R_PPC_GOT_DTPREL16_HA:
9528 /* Add 0x10000 if sign bit in 0:15 is set.
9529 Bits 0:15 are not used. */
9530 addend += 0x8000;
7619e7c7 9531 break;
1fe532cf
AM
9532
9533 case R_PPC_ADDR16:
9534 case R_PPC_ADDR16_LO:
9535 case R_PPC_GOT16:
9536 case R_PPC_GOT16_LO:
9537 case R_PPC_SDAREL16:
9538 case R_PPC_SECTOFF:
9539 case R_PPC_SECTOFF_LO:
9540 case R_PPC_DTPREL16:
9541 case R_PPC_DTPREL16_LO:
9542 case R_PPC_TPREL16:
9543 case R_PPC_TPREL16_LO:
9544 case R_PPC_GOT_TLSGD16:
9545 case R_PPC_GOT_TLSGD16_LO:
9546 case R_PPC_GOT_TLSLD16:
9547 case R_PPC_GOT_TLSLD16_LO:
9548 case R_PPC_GOT_DTPREL16:
9549 case R_PPC_GOT_DTPREL16_LO:
9550 case R_PPC_GOT_TPREL16:
9551 case R_PPC_GOT_TPREL16_LO:
9552 {
9553 /* The 32-bit ABI lacks proper relocations to deal with
9554 certain 64-bit instructions. Prevent damage to bits
9555 that make up part of the insn opcode. */
9556 unsigned int insn, mask, lobit;
9557
c316a17c
AM
9558 insn = bfd_get_32 (output_bfd,
9559 contents + rel->r_offset - d_offset);
1fe532cf
AM
9560 mask = 0;
9561 if (is_insn_ds_form (insn))
9562 mask = 3;
9563 else if (is_insn_dq_form (insn))
9564 mask = 15;
9565 else
9566 break;
a680de9a
PB
9567 relocation += addend;
9568 addend = insn & mask;
9569 lobit = mask & relocation;
1fe532cf
AM
9570 if (lobit != 0)
9571 {
a680de9a 9572 relocation ^= lobit;
1fe532cf 9573 info->callbacks->einfo
695344c0 9574 /* xgettext:c-format */
1fe532cf
AM
9575 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
9576 input_bfd, input_section, rel->r_offset,
9577 howto->name, sym_name, mask + 1);
9578 bfd_set_error (bfd_error_bad_value);
9579 ret = FALSE;
9580 }
1fe532cf
AM
9581 }
9582 break;
252b5132
RH
9583 }
9584
252b5132 9585#ifdef DEBUG
55fd94b0
AM
9586 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9587 "offset = %ld, addend = %ld\n",
252b5132 9588 howto->name,
8da6118f 9589 (int) r_type,
252b5132
RH
9590 sym_name,
9591 r_symndx,
7619e7c7 9592 (long) rel->r_offset,
8da6118f 9593 (long) addend);
252b5132
RH
9594#endif
9595
7619e7c7
AM
9596 if (unresolved_reloc
9597 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9598 && h->def_dynamic)
9599 && _bfd_elf_section_offset (output_bfd, info, input_section,
9600 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9601 {
25f53a85 9602 info->callbacks->einfo
695344c0 9603 /* xgettext:c-format */
8de848d8 9604 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9605 input_bfd, input_section, rel->r_offset,
7b609f53 9606 howto->name,
7619e7c7
AM
9607 sym_name);
9608 ret = FALSE;
9609 }
9610
86c95733
AM
9611 /* 16-bit fields in insns mostly have signed values, but a
9612 few insns have 16-bit unsigned values. Really, we should
9613 have different reloc types. */
9614 if (howto->complain_on_overflow != complain_overflow_dont
9615 && howto->dst_mask == 0xffff
9616 && (input_section->flags & SEC_CODE) != 0)
9617 {
9618 enum complain_overflow complain = complain_overflow_signed;
9619
9620 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9621 {
9622 unsigned int insn;
9623
9624 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9625 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9626 complain = complain_overflow_bitfield;
9627 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9628 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9629 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9630 complain = complain_overflow_unsigned;
9631 }
9632 if (howto->complain_on_overflow != complain)
9633 {
9634 alt_howto = *howto;
9635 alt_howto.complain_on_overflow = complain;
9636 howto = &alt_howto;
9637 }
9638 }
9639
a680de9a
PB
9640 if (r_type == R_PPC_REL16DX_HA)
9641 {
9642 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9643 if (rel->r_offset + 4 > input_section->size)
9644 r = bfd_reloc_outofrange;
9645 else
9646 {
9647 unsigned int insn;
9648
9649 relocation += addend;
9650 relocation -= (rel->r_offset
9651 + input_section->output_offset
9652 + input_section->output_section->vma);
9653 relocation >>= 16;
9654 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9655 insn &= ~0x1fffc1;
9656 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9657 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9658 r = bfd_reloc_ok;
9659 }
9660 }
9661 else
9662 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9663 rel->r_offset, relocation, addend);
252b5132 9664
7619e7c7 9665 if (r != bfd_reloc_ok)
252b5132 9666 {
7619e7c7 9667 if (r == bfd_reloc_overflow)
252b5132 9668 {
c3301df1 9669 overflow:
8131c122
AM
9670 /* On code like "if (foo) foo();" don't report overflow
9671 on a branch to zero when foo is undefined. */
9672 if (!warned
9673 && !(h != NULL
9674 && (h->root.type == bfd_link_hash_undefweak
9675 || h->root.type == bfd_link_hash_undefined)
9676 && is_branch_reloc (r_type)))
1a72702b
AM
9677 info->callbacks->reloc_overflow
9678 (info, (h ? &h->root : NULL), sym_name, howto->name,
9679 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9680 }
9681 else
9682 {
25f53a85 9683 info->callbacks->einfo
695344c0 9684 /* xgettext:c-format */
8de848d8 9685 (_("%P: %H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9686 input_bfd, input_section, rel->r_offset,
9687 howto->name, sym_name, (int) r);
7619e7c7 9688 ret = FALSE;
252b5132
RH
9689 }
9690 }
c316a17c
AM
9691 copy_reloc:
9692 if (wrel != rel)
9693 *wrel = *rel;
9694 }
9695
9696 if (wrel != rel)
9697 {
9698 Elf_Internal_Shdr *rel_hdr;
9699 size_t deleted = rel - wrel;
9700
9701 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9702 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9703 if (rel_hdr->sh_size == 0)
9704 {
9705 /* It is too late to remove an empty reloc section. Leave
9706 one NONE reloc.
9707 ??? What is wrong with an empty section??? */
9708 rel_hdr->sh_size = rel_hdr->sh_entsize;
9709 deleted -= 1;
9710 wrel++;
9711 }
9712 relend = wrel;
9713 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9714 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9715 input_section->reloc_count -= deleted;
252b5132
RH
9716 }
9717
252b5132
RH
9718#ifdef DEBUG
9719 fprintf (stderr, "\n");
9720#endif
9721
53291d1f
AM
9722 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9723 && input_section->size != input_section->rawsize
9724 && (strcmp (input_section->output_section->name, ".init") == 0
9725 || strcmp (input_section->output_section->name, ".fini") == 0))
9726 {
9727 /* Branch around the trampolines. */
9728 unsigned int insn = B + input_section->size - input_section->rawsize;
9729 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9730 }
9731
5446cbdf 9732 if (htab->params->ppc476_workaround
795bc6b3 9733 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9734 && (!bfd_link_relocatable (info)
795bc6b3
AM
9735 || (input_section->output_section->alignment_power
9736 >= htab->params->pagesize_p2)))
5446cbdf 9737 {
5446cbdf 9738 bfd_vma start_addr, end_addr, addr;
795bc6b3 9739 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9740
5446cbdf 9741 if (relax_info->workaround_size != 0)
40fd06d1
AM
9742 {
9743 bfd_byte *p;
9744 unsigned int n;
9745 bfd_byte fill[4];
9746
9747 bfd_put_32 (input_bfd, BA, fill);
9748 p = contents + input_section->size - relax_info->workaround_size;
9749 n = relax_info->workaround_size >> 2;
9750 while (n--)
9751 {
9752 memcpy (p, fill, 4);
9753 p += 4;
9754 }
9755 }
5446cbdf
AM
9756
9757 /* The idea is: Replace the last instruction on a page with a
9758 branch to a patch area. Put the insn there followed by a
9759 branch back to the next page. Complicated a little by
9760 needing to handle moved conditional branches, and by not
9761 wanting to touch data-in-text. */
9762
9763 start_addr = (input_section->output_section->vma
9764 + input_section->output_offset);
9765 end_addr = (start_addr + input_section->size
9766 - relax_info->workaround_size);
9767 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9768 addr < end_addr;
9769 addr += pagesize)
9770 {
9771 bfd_vma offset = addr - start_addr;
9772 Elf_Internal_Rela *lo, *hi;
9773 bfd_boolean is_data;
9774 bfd_vma patch_off, patch_addr;
9775 unsigned int insn;
9776
9777 /* Do we have a data reloc at this offset? If so, leave
9778 the word alone. */
9779 is_data = FALSE;
9780 lo = relocs;
668e22e5
AM
9781 hi = relend;
9782 rel = NULL;
5446cbdf
AM
9783 while (lo < hi)
9784 {
9785 rel = lo + (hi - lo) / 2;
9786 if (rel->r_offset < offset)
9787 lo = rel + 1;
668e22e5 9788 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9789 hi = rel;
9790 else
9791 {
9792 switch (ELF32_R_TYPE (rel->r_info))
9793 {
9794 case R_PPC_ADDR32:
9795 case R_PPC_UADDR32:
9796 case R_PPC_REL32:
9797 case R_PPC_ADDR30:
9798 is_data = TRUE;
9799 break;
9800 default:
9801 break;
9802 }
9803 break;
9804 }
9805 }
9806 if (is_data)
9807 continue;
9808
b4ab4364
AM
9809 /* Some instructions can be left alone too. Unconditional
9810 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9811 avoid the icache failure.
9812
9813 The problem occurs due to prefetch across a page boundary
9814 where stale instructions can be fetched from the next
9815 page, and the mechanism for flushing these bad
9816 instructions fails under certain circumstances. The
9817 unconditional branches:
9818 1) Branch: b, bl, ba, bla,
9819 2) Branch Conditional: bc, bca, bcl, bcla,
9820 3) Branch Conditional to Link Register: bclr, bclrl,
9821 where (2) and (3) have BO=0x14 making them unconditional,
9822 prevent the bad prefetch because the prefetch itself is
9823 affected by these instructions. This happens even if the
9824 instruction is not executed.
9825
9826 A bctr example:
9827 .
9828 . lis 9,new_page@ha
9829 . addi 9,9,new_page@l
9830 . mtctr 9
9831 . bctr
9832 . nop
9833 . nop
9834 . new_page:
9835 .
9836 The bctr is not predicted taken due to ctr not being
9837 ready, so prefetch continues on past the bctr into the
9838 new page which might have stale instructions. If they
9839 fail to be flushed, then they will be executed after the
9840 bctr executes. Either of the following modifications
9841 prevent the bad prefetch from happening in the first
9842 place:
9843 .
1b786873
L
9844 . lis 9,new_page@ha lis 9,new_page@ha
9845 . addi 9,9,new_page@l addi 9,9,new_page@l
9846 . mtctr 9 mtctr 9
9847 . bctr bctr
b4ab4364 9848 . nop b somewhere_else
1b786873
L
9849 . b somewhere_else nop
9850 . new_page: new_page:
b4ab4364 9851 . */
5446cbdf 9852 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9853 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9854 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9855 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9856 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9857 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9858 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9859 continue;
9860
9861 patch_addr = (start_addr + input_section->size
9862 - relax_info->workaround_size);
9863 patch_addr = (patch_addr + 15) & -16;
9864 patch_off = patch_addr - start_addr;
9865 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9866
9867 if (rel != NULL
9868 && rel->r_offset >= offset
9869 && rel->r_offset < offset + 4)
9870 {
f8b44781
AM
9871 asection *sreloc;
9872
668e22e5
AM
9873 /* If the insn we are patching had a reloc, adjust the
9874 reloc r_offset so that the reloc applies to the moved
9875 location. This matters for -r and --emit-relocs. */
9876 if (rel + 1 != relend)
9877 {
9878 Elf_Internal_Rela tmp = *rel;
9879
9880 /* Keep the relocs sorted by r_offset. */
9881 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9882 relend[-1] = tmp;
9883 }
9884 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9885
9886 /* Adjust REL16 addends too. */
9887 switch (ELF32_R_TYPE (relend[-1].r_info))
9888 {
9889 case R_PPC_REL16:
9890 case R_PPC_REL16_LO:
9891 case R_PPC_REL16_HI:
9892 case R_PPC_REL16_HA:
9893 relend[-1].r_addend += patch_off - offset;
9894 break;
9895 default:
9896 break;
9897 }
9898
9899 /* If we are building a PIE or shared library with
9900 non-PIC objects, perhaps we had a dynamic reloc too?
9901 If so, the dynamic reloc must move with the insn. */
9902 sreloc = elf_section_data (input_section)->sreloc;
9903 if (sreloc != NULL)
9904 {
1d5c94cb 9905 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9906 bfd_vma soffset;
9907
1d5c94cb
AM
9908 slo = (Elf32_External_Rela *) sreloc->contents;
9909 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9910 soffset = (offset + input_section->output_section->vma
9911 + input_section->output_offset);
9912 while (slo < shi)
9913 {
1d5c94cb
AM
9914 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9915 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9916 &outrel);
f8b44781
AM
9917 if (outrel.r_offset < soffset)
9918 slo = srel + 1;
9919 else if (outrel.r_offset > soffset + 3)
9920 shi = srel;
9921 else
9922 {
1d5c94cb 9923 if (srel + 1 != srelend)
f8b44781 9924 {
1d5c94cb
AM
9925 memmove (srel, srel + 1,
9926 (srelend - (srel + 1)) * sizeof (*srel));
9927 srel = srelend - 1;
f8b44781
AM
9928 }
9929 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9930 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9931 (bfd_byte *) srel);
f8b44781
AM
9932 break;
9933 }
9934 }
9935 }
668e22e5
AM
9936 }
9937 else
9938 rel = NULL;
9939
5446cbdf
AM
9940 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9941 && (insn & 2) == 0 /* relative */)
9942 {
9943 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9944
9945 delta += offset - patch_off;
0e1862bb 9946 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 9947 delta = 0;
0e1862bb 9948 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
9949 {
9950 enum elf_ppc_reloc_type r_type;
9951
9952 r_type = ELF32_R_TYPE (relend[-1].r_info);
9953 if (r_type == R_PPC_REL14_BRTAKEN)
9954 insn |= BRANCH_PREDICT_BIT;
9955 else if (r_type == R_PPC_REL14_BRNTAKEN)
9956 insn &= ~BRANCH_PREDICT_BIT;
9957 else
9958 BFD_ASSERT (r_type == R_PPC_REL14);
9959
9960 if ((r_type == R_PPC_REL14_BRTAKEN
9961 || r_type == R_PPC_REL14_BRNTAKEN)
9962 && delta + 0x8000 < 0x10000
9963 && (bfd_signed_vma) delta < 0)
9964 insn ^= BRANCH_PREDICT_BIT;
9965 }
5446cbdf
AM
9966 if (delta + 0x8000 < 0x10000)
9967 {
9968 bfd_put_32 (input_bfd,
9969 (insn & ~0xfffc) | (delta & 0xfffc),
9970 contents + patch_off);
9971 patch_off += 4;
9972 bfd_put_32 (input_bfd,
9973 B | ((offset + 4 - patch_off) & 0x3fffffc),
9974 contents + patch_off);
9975 patch_off += 4;
9976 }
9977 else
9978 {
668e22e5
AM
9979 if (rel != NULL)
9980 {
9981 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
9982
9983 relend[-1].r_offset += 8;
9984 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
9985 }
5446cbdf
AM
9986 bfd_put_32 (input_bfd,
9987 (insn & ~0xfffc) | 8,
9988 contents + patch_off);
9989 patch_off += 4;
9990 bfd_put_32 (input_bfd,
9991 B | ((offset + 4 - patch_off) & 0x3fffffc),
9992 contents + patch_off);
9993 patch_off += 4;
9994 bfd_put_32 (input_bfd,
9995 B | ((delta - 8) & 0x3fffffc),
9996 contents + patch_off);
9997 patch_off += 4;
9998 }
9999 }
10000 else
10001 {
10002 bfd_put_32 (input_bfd, insn, contents + patch_off);
10003 patch_off += 4;
10004 bfd_put_32 (input_bfd,
10005 B | ((offset + 4 - patch_off) & 0x3fffffc),
10006 contents + patch_off);
10007 patch_off += 4;
10008 }
10009 BFD_ASSERT (patch_off <= input_section->size);
10010 relax_info->workaround_size = input_section->size - patch_off;
10011 }
10012 }
10013
252b5132
RH
10014 return ret;
10015}
252b5132 10016\f
25dbc73a
AM
10017/* Finish up dynamic symbol handling. We set the contents of various
10018 dynamic sections here. */
c5fccbec 10019
b34976b6 10020static bfd_boolean
25dbc73a
AM
10021ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10022 struct bfd_link_info *info,
10023 struct elf_link_hash_entry *h,
10024 Elf_Internal_Sym *sym)
e1a9cb8e 10025{
25dbc73a 10026 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
10027 struct plt_entry *ent;
10028 bfd_boolean doneone;
e1a9cb8e 10029
25dbc73a
AM
10030#ifdef DEBUG
10031 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10032 h->root.root.string);
10033#endif
e1a9cb8e 10034
25dbc73a
AM
10035 htab = ppc_elf_hash_table (info);
10036 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 10037
a6aa5195
AM
10038 doneone = FALSE;
10039 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10040 if (ent->plt.offset != (bfd_vma) -1)
10041 {
10042 if (!doneone)
10043 {
10044 Elf_Internal_Rela rela;
10045 bfd_byte *loc;
10046 bfd_vma reloc_index;
e1a9cb8e 10047
e054468f 10048 if (htab->plt_type == PLT_NEW
25f23106
AM
10049 || !htab->elf.dynamic_sections_created
10050 || h->dynindx == -1)
9d8504b1
PB
10051 reloc_index = ent->plt.offset / 4;
10052 else
10053 {
10054 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10055 / htab->plt_slot_size);
10056 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 10057 && htab->plt_type == PLT_OLD)
9d8504b1
PB
10058 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10059 }
10060
a6aa5195
AM
10061 /* This symbol has an entry in the procedure linkage table.
10062 Set it up. */
e054468f 10063 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
10064 && htab->elf.dynamic_sections_created
10065 && h->dynindx != -1)
a6aa5195 10066 {
9d8504b1
PB
10067 bfd_vma got_offset;
10068 const bfd_vma *plt_entry;
5b914448 10069
9d8504b1
PB
10070 /* The first three entries in .got.plt are reserved. */
10071 got_offset = (reloc_index + 3) * 4;
10072
10073 /* Use the right PLT. */
0e1862bb 10074 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10075 : ppc_elf_vxworks_plt_entry;
10076
10077 /* Fill in the .plt on VxWorks. */
0e1862bb 10078 if (bfd_link_pic (info))
9d8504b1 10079 {
9d8504b1 10080 bfd_put_32 (output_bfd,
e87d4038 10081 plt_entry[0] | PPC_HA (got_offset),
9d8504b1
PB
10082 htab->plt->contents + ent->plt.offset + 0);
10083 bfd_put_32 (output_bfd,
e87d4038 10084 plt_entry[1] | PPC_LO (got_offset),
9d8504b1
PB
10085 htab->plt->contents + ent->plt.offset + 4);
10086 }
10087 else
10088 {
e87d4038 10089 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
10090
10091 bfd_put_32 (output_bfd,
e87d4038 10092 plt_entry[0] | PPC_HA (got_loc),
9d8504b1
PB
10093 htab->plt->contents + ent->plt.offset + 0);
10094 bfd_put_32 (output_bfd,
e87d4038 10095 plt_entry[1] | PPC_LO (got_loc),
9d8504b1
PB
10096 htab->plt->contents + ent->plt.offset + 4);
10097 }
10098
10099 bfd_put_32 (output_bfd, plt_entry[2],
10100 htab->plt->contents + ent->plt.offset + 8);
10101 bfd_put_32 (output_bfd, plt_entry[3],
10102 htab->plt->contents + ent->plt.offset + 12);
10103
10104 /* This instruction is an immediate load. The value loaded is
10105 the byte offset of the R_PPC_JMP_SLOT relocation from the
10106 start of the .rela.plt section. The value is stored in the
10107 low-order 16 bits of the load instruction. */
10108 /* NOTE: It appears that this is now an index rather than a
10109 prescaled offset. */
5b914448 10110 bfd_put_32 (output_bfd,
9d8504b1
PB
10111 plt_entry[4] | reloc_index,
10112 htab->plt->contents + ent->plt.offset + 16);
10113 /* This instruction is a PC-relative branch whose target is
10114 the start of the PLT section. The address of this branch
10115 instruction is 20 bytes beyond the start of this PLT entry.
10116 The address is encoded in bits 6-29, inclusive. The value
10117 stored is right-shifted by two bits, permitting a 26-bit
10118 offset. */
5b914448
AM
10119 bfd_put_32 (output_bfd,
10120 (plt_entry[5]
9d8504b1
PB
10121 | (-(ent->plt.offset + 20) & 0x03fffffc)),
10122 htab->plt->contents + ent->plt.offset + 20);
10123 bfd_put_32 (output_bfd, plt_entry[6],
10124 htab->plt->contents + ent->plt.offset + 24);
10125 bfd_put_32 (output_bfd, plt_entry[7],
10126 htab->plt->contents + ent->plt.offset + 28);
10127
10128 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10129 the address immediately after the "bctr" instruction
9d8504b1
PB
10130 in this PLT entry. */
10131 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
10132 + htab->plt->output_offset
10133 + ent->plt.offset + 16),
10134 htab->sgotplt->contents + got_offset);
10135
0e1862bb 10136 if (!bfd_link_pic (info))
9d8504b1
PB
10137 {
10138 /* Fill in a couple of entries in .rela.plt.unloaded. */
10139 loc = htab->srelplt2->contents
10140 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10141 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10142 * sizeof (Elf32_External_Rela));
10143
10144 /* Provide the @ha relocation for the first instruction. */
10145 rela.r_offset = (htab->plt->output_section->vma
10146 + htab->plt->output_offset
10147 + ent->plt.offset + 2);
636ce3f5 10148 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10149 R_PPC_ADDR16_HA);
10150 rela.r_addend = got_offset;
10151 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10152 loc += sizeof (Elf32_External_Rela);
10153
10154 /* Provide the @l relocation for the second instruction. */
10155 rela.r_offset = (htab->plt->output_section->vma
10156 + htab->plt->output_offset
10157 + ent->plt.offset + 6);
636ce3f5 10158 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10159 R_PPC_ADDR16_LO);
10160 rela.r_addend = got_offset;
10161 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10162 loc += sizeof (Elf32_External_Rela);
10163
10164 /* Provide a relocation for the GOT entry corresponding to this
10165 PLT slot. Point it at the middle of the .plt entry. */
10166 rela.r_offset = (htab->sgotplt->output_section->vma
10167 + htab->sgotplt->output_offset
10168 + got_offset);
7325306f 10169 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10170 R_PPC_ADDR32);
10171 rela.r_addend = ent->plt.offset + 16;
10172 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10173 }
10174
10175 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10176 In particular, the offset for the relocation is not the
10177 address of the PLT entry for this function, as specified
10178 by the ABI. Instead, the offset is set to the address of
10179 the GOT slot for this function. See EABI 4.4.4.1. */
10180 rela.r_offset = (htab->sgotplt->output_section->vma
10181 + htab->sgotplt->output_offset
10182 + got_offset);
10183
a6aa5195
AM
10184 }
10185 else
10186 {
e054468f 10187 asection *splt = htab->plt;
25f23106
AM
10188 if (!htab->elf.dynamic_sections_created
10189 || h->dynindx == -1)
e054468f
AM
10190 splt = htab->iplt;
10191
10192 rela.r_offset = (splt->output_section->vma
10193 + splt->output_offset
9d8504b1 10194 + ent->plt.offset);
e054468f 10195 if (htab->plt_type == PLT_OLD
25f23106
AM
10196 || !htab->elf.dynamic_sections_created
10197 || h->dynindx == -1)
9d8504b1
PB
10198 {
10199 /* We don't need to fill in the .plt. The ppc dynamic
10200 linker will fill it in. */
10201 }
10202 else
10203 {
10204 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10205 + htab->glink->output_section->vma
10206 + htab->glink->output_offset);
10207 bfd_put_32 (output_bfd, val,
e054468f 10208 splt->contents + ent->plt.offset);
9d8504b1 10209 }
a6aa5195 10210 }
e1a9cb8e 10211
a6aa5195 10212 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10213 rela.r_addend = 0;
e054468f
AM
10214 if (!htab->elf.dynamic_sections_created
10215 || h->dynindx == -1)
10216 {
10217 BFD_ASSERT (h->type == STT_GNU_IFUNC
10218 && h->def_regular
10219 && (h->root.type == bfd_link_hash_defined
10220 || h->root.type == bfd_link_hash_defweak));
10221 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10222 rela.r_addend = SYM_VAL (h);
10223 }
10224 else
10225 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10226
25f23106
AM
10227 if (!htab->elf.dynamic_sections_created
10228 || h->dynindx == -1)
10229 loc = (htab->reliplt->contents
10230 + (htab->reliplt->reloc_count++
10231 * sizeof (Elf32_External_Rela)));
e054468f 10232 else
25f23106
AM
10233 loc = (htab->relplt->contents
10234 + reloc_index * sizeof (Elf32_External_Rela));
a6aa5195 10235 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10236
a6aa5195
AM
10237 if (!h->def_regular)
10238 {
0eb4a168
AM
10239 /* Mark the symbol as undefined, rather than as
10240 defined in the .plt section. Leave the value if
10241 there were any relocations where pointer equality
10242 matters (this is a clue for the dynamic linker, to
10243 make function pointer comparisons work between an
10244 application and shared library), otherwise set it
10245 to zero. */
a6aa5195 10246 sym->st_shndx = SHN_UNDEF;
0eb4a168 10247 if (!h->pointer_equality_needed)
a6aa5195 10248 sym->st_value = 0;
0eb4a168
AM
10249 else if (!h->ref_regular_nonweak)
10250 {
625af618
AM
10251 /* This breaks function pointer comparisons, but
10252 that is better than breaking tests for a NULL
0eb4a168 10253 function pointer. */
0eb4a168
AM
10254 sym->st_value = 0;
10255 }
a6aa5195 10256 }
de972ffa 10257 else if (h->type == STT_GNU_IFUNC
0e1862bb 10258 && !bfd_link_pic (info))
de972ffa
AM
10259 {
10260 /* Set the value of ifunc symbols in a non-pie
10261 executable to the glink entry. This is to avoid
10262 text relocations. We can't do this for ifunc in
10263 allocate_dynrelocs, as we do for normal dynamic
10264 function symbols with plt entries, because we need
10265 to keep the original value around for the ifunc
10266 relocation. */
10267 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10268 (output_bfd, htab->glink->output_section));
5b914448
AM
10269 sym->st_value = (ent->glink_offset
10270 + htab->glink->output_offset
de972ffa
AM
10271 + htab->glink->output_section->vma);
10272 }
a6aa5195
AM
10273 doneone = TRUE;
10274 }
e1a9cb8e 10275
e054468f 10276 if (htab->plt_type == PLT_NEW
25f23106
AM
10277 || !htab->elf.dynamic_sections_created
10278 || h->dynindx == -1)
a6aa5195 10279 {
a7f2871e 10280 unsigned char *p;
e054468f 10281 asection *splt = htab->plt;
25f23106
AM
10282 if (!htab->elf.dynamic_sections_created
10283 || h->dynindx == -1)
e054468f 10284 splt = htab->iplt;
e1a9cb8e 10285
a7f2871e
AM
10286 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10287
5446cbdf 10288 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10289 {
10290 bfd_put_32 (output_bfd, LWZ_11_3, p);
10291 p += 4;
10292 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10293 p += 4;
10294 bfd_put_32 (output_bfd, MR_0_3, p);
10295 p += 4;
10296 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10297 p += 4;
10298 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10299 p += 4;
10300 bfd_put_32 (output_bfd, BEQLR, p);
10301 p += 4;
10302 bfd_put_32 (output_bfd, MR_3_0, p);
10303 p += 4;
10304 bfd_put_32 (output_bfd, NOP, p);
10305 p += 4;
10306 }
10307
10308 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10309
0e1862bb 10310 if (!bfd_link_pic (info))
e054468f
AM
10311 /* We only need one non-PIC glink stub. */
10312 break;
a6aa5195
AM
10313 }
10314 else
10315 break;
10316 }
e1a9cb8e 10317
25dbc73a
AM
10318 if (h->needs_copy)
10319 {
10320 asection *s;
10321 Elf_Internal_Rela rela;
10322 bfd_byte *loc;
e1a9cb8e 10323
25dbc73a 10324 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10325
25dbc73a
AM
10326#ifdef DEBUG
10327 fprintf (stderr, ", copy");
10328#endif
e1a9cb8e 10329
25dbc73a 10330 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10331
4dc4a9a5 10332 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
10333 s = htab->relsbss;
10334 else
10335 s = htab->relbss;
10336 BFD_ASSERT (s != NULL);
e1a9cb8e 10337
e87d4038 10338 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10339 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10340 rela.r_addend = 0;
10341 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10342 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10343 }
e1a9cb8e 10344
25dbc73a
AM
10345#ifdef DEBUG
10346 fprintf (stderr, "\n");
10347#endif
e1a9cb8e 10348
25dbc73a
AM
10349 return TRUE;
10350}
10351\f
10352static enum elf_reloc_type_class
7e612e98
AM
10353ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10354 const asection *rel_sec,
10355 const Elf_Internal_Rela *rela)
e1a9cb8e 10356{
7e612e98
AM
10357 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10358
10359 if (rel_sec == htab->reliplt)
10360 return reloc_class_ifunc;
10361
25dbc73a
AM
10362 switch (ELF32_R_TYPE (rela->r_info))
10363 {
10364 case R_PPC_RELATIVE:
10365 return reloc_class_relative;
25dbc73a
AM
10366 case R_PPC_JMP_SLOT:
10367 return reloc_class_plt;
10368 case R_PPC_COPY:
10369 return reloc_class_copy;
10370 default:
10371 return reloc_class_normal;
10372 }
e1a9cb8e 10373}
25dbc73a
AM
10374\f
10375/* Finish up the dynamic sections. */
e1a9cb8e 10376
25dbc73a
AM
10377static bfd_boolean
10378ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10379 struct bfd_link_info *info)
e1a9cb8e 10380{
25dbc73a 10381 asection *sdyn;
9d8504b1 10382 asection *splt;
25dbc73a 10383 struct ppc_elf_link_hash_table *htab;
1fe44d79 10384 bfd_vma got;
e87d4038
AM
10385 bfd *dynobj;
10386 bfd_boolean ret = TRUE;
e1a9cb8e 10387
25dbc73a
AM
10388#ifdef DEBUG
10389 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10390#endif
6b0817e5 10391
25dbc73a 10392 htab = ppc_elf_hash_table (info);
9d8504b1 10393 dynobj = elf_hash_table (info)->dynobj;
3d4d4302 10394 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9d8504b1 10395 if (htab->is_vxworks)
3d4d4302 10396 splt = bfd_get_linker_section (dynobj, ".plt");
9d8504b1
PB
10397 else
10398 splt = NULL;
e1a9cb8e 10399
1fe44d79
AM
10400 got = 0;
10401 if (htab->elf.hgot != NULL)
e87d4038 10402 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10403
25dbc73a 10404 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10405 {
25dbc73a 10406 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10407
25dbc73a 10408 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 10409
25dbc73a
AM
10410 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10411 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10412 for (; dyncon < dynconend; dyncon++)
10413 {
10414 Elf_Internal_Dyn dyn;
10415 asection *s;
e1a9cb8e 10416
9d8504b1 10417 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10418
25dbc73a
AM
10419 switch (dyn.d_tag)
10420 {
10421 case DT_PLTGOT:
9d8504b1
PB
10422 if (htab->is_vxworks)
10423 s = htab->sgotplt;
10424 else
10425 s = htab->plt;
25dbc73a
AM
10426 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10427 break;
86bbe32f 10428
25dbc73a
AM
10429 case DT_PLTRELSZ:
10430 dyn.d_un.d_val = htab->relplt->size;
10431 break;
e1a9cb8e 10432
25dbc73a
AM
10433 case DT_JMPREL:
10434 s = htab->relplt;
10435 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10436 break;
2f89ff8d 10437
1fe44d79
AM
10438 case DT_PPC_GOT:
10439 dyn.d_un.d_ptr = got;
d7128ce4
AM
10440 break;
10441
9d8504b1
PB
10442 case DT_RELASZ:
10443 if (htab->is_vxworks)
10444 {
10445 if (htab->relplt)
10446 dyn.d_un.d_ptr -= htab->relplt->size;
10447 break;
10448 }
10449 continue;
10450
25dbc73a 10451 default:
7a2b07ff
NS
10452 if (htab->is_vxworks
10453 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10454 break;
25dbc73a
AM
10455 continue;
10456 }
4c45e5c9 10457
25dbc73a
AM
10458 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10459 }
10460 }
4c45e5c9 10461
3b36f7e6 10462 if (htab->got != NULL)
25dbc73a 10463 {
e79f5955
AM
10464 if (htab->elf.hgot->root.u.def.section == htab->got
10465 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
e87d4038 10466 {
e79f5955 10467 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10468
e87d4038
AM
10469 p += htab->elf.hgot->root.u.def.value;
10470 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10471 {
10472 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10473 so that a function can easily find the address of
10474 _GLOBAL_OFFSET_TABLE_. */
10475 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10476 < htab->elf.hgot->root.u.def.section->size);
10477 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10478 }
3b36f7e6 10479
e87d4038 10480 if (sdyn != NULL)
e79f5955
AM
10481 {
10482 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10483 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10484 < htab->elf.hgot->root.u.def.section->size);
10485 bfd_put_32 (output_bfd, val, p);
10486 }
e87d4038
AM
10487 }
10488 else
10489 {
695344c0 10490 /* xgettext:c-format */
8de848d8 10491 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85
AM
10492 htab->elf.hgot->root.root.string,
10493 (htab->sgotplt != NULL
10494 ? htab->sgotplt->name : htab->got->name));
e87d4038
AM
10495 bfd_set_error (bfd_error_bad_value);
10496 ret = FALSE;
10497 }
25dbc73a
AM
10498
10499 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
10500 }
10501
9d8504b1
PB
10502 /* Fill in the first entry in the VxWorks procedure linkage table. */
10503 if (splt && splt->size > 0)
10504 {
10505 /* Use the right PLT. */
0e1862bb 10506 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10507 ? ppc_elf_vxworks_pic_plt0_entry
10508 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10509
0e1862bb 10510 if (!bfd_link_pic (info))
9d8504b1 10511 {
e87d4038 10512 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10513
e87d4038 10514 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10515 splt->contents + 0);
e87d4038 10516 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10517 splt->contents + 4);
10518 }
10519 else
10520 {
10521 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10522 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10523 }
10524 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10525 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10526 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10527 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10528 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10529 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10530
0e1862bb 10531 if (! bfd_link_pic (info))
9d8504b1
PB
10532 {
10533 Elf_Internal_Rela rela;
10534 bfd_byte *loc;
10535
10536 loc = htab->srelplt2->contents;
10537
10538 /* Output the @ha relocation for the first instruction. */
10539 rela.r_offset = (htab->plt->output_section->vma
10540 + htab->plt->output_offset
10541 + 2);
636ce3f5 10542 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10543 rela.r_addend = 0;
10544 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10545 loc += sizeof (Elf32_External_Rela);
5b914448 10546
9d8504b1
PB
10547 /* Output the @l relocation for the second instruction. */
10548 rela.r_offset = (htab->plt->output_section->vma
10549 + htab->plt->output_offset
10550 + 6);
636ce3f5 10551 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10552 rela.r_addend = 0;
10553 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10554 loc += sizeof (Elf32_External_Rela);
10555
10556 /* Fix up the remaining relocations. They may have the wrong
10557 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10558 in which symbols were output. */
10559 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10560 {
10561 Elf_Internal_Rela rel;
10562
10563 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10564 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10565 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10566 loc += sizeof (Elf32_External_Rela);
10567
10568 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10569 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10570 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10571 loc += sizeof (Elf32_External_Rela);
10572
10573 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10574 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10575 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10576 loc += sizeof (Elf32_External_Rela);
10577 }
10578 }
10579 }
10580
e054468f
AM
10581 if (htab->glink != NULL
10582 && htab->glink->contents != NULL
10583 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10584 {
10585 unsigned char *p;
10586 unsigned char *endp;
a6aa5195 10587 bfd_vma res0;
d7128ce4 10588 unsigned int i;
a6aa5195
AM
10589
10590 /*
10591 * PIC glink code is the following:
10592 *
10593 * # ith PLT code stub.
10594 * addis 11,30,(plt+(i-1)*4-got)@ha
10595 * lwz 11,(plt+(i-1)*4-got)@l(11)
10596 * mtctr 11
10597 * bctr
10598 *
10599 * # A table of branches, one for each plt entry.
176a0d42 10600 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10601 * # addresses, so (r11 - res_0) gives the plt index * 4.
10602 * res_0: b PLTresolve
10603 * res_1: b PLTresolve
10604 * .
10605 * # Some number of entries towards the end can be nops
10606 * res_n_m3: nop
10607 * res_n_m2: nop
10608 * res_n_m1:
10609 *
10610 * PLTresolve:
10611 * addis 11,11,(1f-res_0)@ha
10612 * mflr 0
10613 * bcl 20,31,1f
10614 * 1: addi 11,11,(1b-res_0)@l
10615 * mflr 12
10616 * mtlr 0
10617 * sub 11,11,12 # r11 = index * 4
10618 * addis 12,12,(got+4-1b)@ha
10619 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10620 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10621 * mtctr 0
10622 * add 0,11,11
10623 * add 11,0,11 # r11 = index * 12 = reloc offset.
10624 * bctr
10625 */
10626 static const unsigned int pic_plt_resolve[] =
10627 {
10628 ADDIS_11_11,
10629 MFLR_0,
10630 BCL_20_31,
10631 ADDI_11_11,
10632 MFLR_12,
10633 MTLR_0,
10634 SUB_11_11_12,
10635 ADDIS_12_12,
10636 LWZ_0_12,
10637 LWZ_12_12,
10638 MTCTR_0,
10639 ADD_0_11_11,
10640 ADD_11_0_11,
10641 BCTR,
10642 NOP,
10643 NOP
10644 };
10645
176a0d42
AM
10646 /*
10647 * Non-PIC glink code is a little simpler.
10648 *
10649 * # ith PLT code stub.
10650 * lis 11,(plt+(i-1)*4)@ha
10651 * lwz 11,(plt+(i-1)*4)@l(11)
10652 * mtctr 11
10653 * bctr
10654 *
10655 * The branch table is the same, then comes
10656 *
10657 * PLTresolve:
10658 * lis 12,(got+4)@ha
10659 * addis 11,11,(-res_0)@ha
10660 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10661 * addi 11,11,(-res_0)@l # r11 = index * 4
10662 * mtctr 0
10663 * add 0,11,11
10664 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10665 * add 11,0,11 # r11 = index * 12 = reloc offset.
10666 * bctr
10667 */
d7128ce4
AM
10668 static const unsigned int plt_resolve[] =
10669 {
a6aa5195
AM
10670 LIS_12,
10671 ADDIS_11_11,
10672 LWZ_0_12,
10673 ADDI_11_11,
d7128ce4 10674 MTCTR_0,
7e8aeb9a 10675 ADD_0_11_11,
a6aa5195 10676 LWZ_12_12,
7e8aeb9a 10677 ADD_11_0_11,
d7128ce4
AM
10678 BCTR,
10679 NOP,
10680 NOP,
a6aa5195
AM
10681 NOP,
10682 NOP,
10683 NOP,
10684 NOP,
d7128ce4
AM
10685 NOP
10686 };
10687
a6aa5195
AM
10688 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10689 abort ();
10690 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10691 abort ();
10692
a6aa5195 10693 /* Build the branch table, one for each plt entry (less one),
86b9da88 10694 and perhaps some padding. */
a6aa5195
AM
10695 p = htab->glink->contents;
10696 p += htab->glink_pltresolve;
86b9da88
AM
10697 endp = htab->glink->contents;
10698 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10699 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10700 {
10701 bfd_put_32 (output_bfd, B + endp - p, p);
10702 p += 4;
10703 }
10704 while (p < endp)
10705 {
10706 bfd_put_32 (output_bfd, NOP, p);
10707 p += 4;
10708 }
10709
7e8aeb9a 10710 res0 = (htab->glink_pltresolve
86b9da88
AM
10711 + htab->glink->output_section->vma
10712 + htab->glink->output_offset);
10713
da3a2088
AM
10714 if (htab->params->ppc476_workaround)
10715 {
10716 /* Ensure that a call stub at the end of a page doesn't
10717 result in prefetch over the end of the page into the
10718 glink branch table. */
10719 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10720 bfd_vma page_addr;
10721 bfd_vma glink_start = (htab->glink->output_section->vma
10722 + htab->glink->output_offset);
10723
10724 for (page_addr = res0 & -pagesize;
10725 page_addr > glink_start;
10726 page_addr -= pagesize)
10727 {
10728 /* We have a plt call stub that may need fixing. */
10729 bfd_byte *loc;
10730 unsigned int insn;
10731
10732 loc = htab->glink->contents + page_addr - 4 - glink_start;
10733 insn = bfd_get_32 (output_bfd, loc);
10734 if (insn == BCTR)
10735 {
10736 /* By alignment, we know that there must be at least
10737 one other call stub before this one. */
10738 insn = bfd_get_32 (output_bfd, loc - 16);
10739 if (insn == BCTR)
10740 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10741 else
10742 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10743 }
10744 }
10745 }
10746
86b9da88 10747 /* Last comes the PLTresolve stub. */
0e1862bb 10748 if (bfd_link_pic (info))
7e8aeb9a 10749 {
a6aa5195 10750 bfd_vma bcl;
d7128ce4 10751
a6aa5195 10752 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10753 {
da3a2088
AM
10754 unsigned int insn = pic_plt_resolve[i];
10755
10756 if (htab->params->ppc476_workaround && insn == NOP)
10757 insn = BA + 0;
10758 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10759 p += 4;
10760 }
a6aa5195
AM
10761 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10762
10763 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10764 + htab->glink->output_section->vma
10765 + htab->glink->output_offset);
10766
10767 bfd_put_32 (output_bfd,
10768 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10769 bfd_put_32 (output_bfd,
10770 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10771 bfd_put_32 (output_bfd,
10772 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10773 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10774 {
10775 bfd_put_32 (output_bfd,
10776 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10777 bfd_put_32 (output_bfd,
10778 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10779 }
10780 else
10781 {
10782 bfd_put_32 (output_bfd,
10783 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10784 bfd_put_32 (output_bfd,
10785 LWZ_12_12 + 4, p + 9*4);
10786 }
7e8aeb9a
AM
10787 }
10788 else
d7128ce4 10789 {
a6aa5195 10790 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10791 {
da3a2088
AM
10792 unsigned int insn = plt_resolve[i];
10793
10794 if (htab->params->ppc476_workaround && insn == NOP)
10795 insn = BA + 0;
10796 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10797 p += 4;
10798 }
a6aa5195
AM
10799 p -= 4 * ARRAY_SIZE (plt_resolve);
10800
10801 bfd_put_32 (output_bfd,
10802 LIS_12 + PPC_HA (got + 4), p + 0*4);
10803 bfd_put_32 (output_bfd,
10804 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10805 bfd_put_32 (output_bfd,
10806 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10807 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10808 {
10809 bfd_put_32 (output_bfd,
10810 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10811 bfd_put_32 (output_bfd,
10812 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10813 }
10814 else
10815 {
10816 bfd_put_32 (output_bfd,
10817 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10818 bfd_put_32 (output_bfd,
10819 LWZ_12_12 + 4, p + 6*4);
10820 }
d7128ce4 10821 }
d7128ce4
AM
10822 }
10823
6177242a
AM
10824 if (htab->glink_eh_frame != NULL
10825 && htab->glink_eh_frame->contents != NULL)
10826 {
10827 unsigned char *p = htab->glink_eh_frame->contents;
10828 bfd_vma val;
10829
6177242a
AM
10830 p += sizeof (glink_eh_frame_cie);
10831 /* FDE length. */
6177242a
AM
10832 p += 4;
10833 /* CIE pointer. */
6177242a
AM
10834 p += 4;
10835 /* Offset to .glink. */
10836 val = (htab->glink->output_section->vma
10837 + htab->glink->output_offset);
10838 val -= (htab->glink_eh_frame->output_section->vma
10839 + htab->glink_eh_frame->output_offset);
10840 val -= p - htab->glink_eh_frame->contents;
10841 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10842
dbaa2011 10843 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10844 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10845 htab->glink_eh_frame,
10846 htab->glink_eh_frame->contents))
10847 return FALSE;
10848 }
10849
e87d4038 10850 return ret;
25dbc73a 10851}
e1a9cb8e 10852\f
6d00b590 10853#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10854#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10855#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10856#define TARGET_BIG_NAME "elf32-powerpc"
10857#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10858#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10859#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10860#ifdef __QNXTARGET__
10861#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10862#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10863#else
252b5132 10864#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10865#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10866#endif
b1342370 10867#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10868#define elf_info_to_howto ppc_elf_info_to_howto
10869
10870#ifdef EM_CYGNUS_POWERPC
10871#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10872#endif
10873
10874#ifdef EM_PPC_OLD
10875#define ELF_MACHINE_ALT2 EM_PPC_OLD
10876#endif
10877
10878#define elf_backend_plt_not_loaded 1
252b5132 10879#define elf_backend_can_gc_sections 1
51b64d56 10880#define elf_backend_can_refcount 1
b491616a 10881#define elf_backend_rela_normal 1
53291d1f 10882#define elf_backend_caches_rawsize 1
252b5132 10883
43c40ab2 10884#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10885#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10886#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10887#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10888#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10889#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10890#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10891#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10892
feee612b 10893#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
10894#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10895#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10896#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10897#define elf_backend_relocate_section ppc_elf_relocate_section
10898#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10899#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 10900#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10901#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10902#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10903#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10904#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10905#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10906#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10907#define elf_backend_fake_sections ppc_elf_fake_sections
10908#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
b9c361e0 10909#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10910#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10911#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10912#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10913#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10914#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10915#define elf_backend_final_write_processing ppc_elf_final_write_processing
10916#define elf_backend_write_section ppc_elf_write_section
551b43fd 10917#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10918#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10919#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10920#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10921#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10922
10923#include "elf32-target.h"
9d8504b1 10924
7b8e7dad
AM
10925/* FreeBSD Target */
10926
10927#undef TARGET_LITTLE_SYM
10928#undef TARGET_LITTLE_NAME
10929
10930#undef TARGET_BIG_SYM
6d00b590 10931#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
10932#undef TARGET_BIG_NAME
10933#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10934
10935#undef ELF_OSABI
10936#define ELF_OSABI ELFOSABI_FREEBSD
10937
10938#undef elf32_bed
10939#define elf32_bed elf32_powerpc_fbsd_bed
10940
10941#include "elf32-target.h"
10942
9d8504b1
PB
10943/* VxWorks Target */
10944
10945#undef TARGET_LITTLE_SYM
10946#undef TARGET_LITTLE_NAME
10947
10948#undef TARGET_BIG_SYM
6d00b590 10949#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
10950#undef TARGET_BIG_NAME
10951#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10952
7b8e7dad
AM
10953#undef ELF_OSABI
10954
d5e3d971
PB
10955/* VxWorks uses the elf default section flags for .plt. */
10956static const struct bfd_elf_special_section *
10957ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 10958{
d5e3d971
PB
10959 if (sec->name == NULL)
10960 return NULL;
10961
10962 if (strcmp (sec->name, ".plt") == 0)
10963 return _bfd_elf_get_sec_type_attr (abfd, sec);
10964
10965 return ppc_elf_get_sec_type_attr (abfd, sec);
10966}
9d8504b1
PB
10967
10968/* Like ppc_elf_link_hash_table_create, but overrides
10969 appropriately for VxWorks. */
10970static struct bfd_link_hash_table *
10971ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10972{
10973 struct bfd_link_hash_table *ret;
10974
10975 ret = ppc_elf_link_hash_table_create (abfd);
10976 if (ret)
10977 {
10978 struct ppc_elf_link_hash_table *htab
10979 = (struct ppc_elf_link_hash_table *)ret;
10980 htab->is_vxworks = 1;
4a3dc543 10981 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
10982 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10983 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10984 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10985 }
10986 return ret;
10987}
10988
10989/* Tweak magic VxWorks symbols as they are loaded. */
10990static bfd_boolean
10991ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10992 struct bfd_link_info *info,
10993 Elf_Internal_Sym *sym,
10994 const char **namep ATTRIBUTE_UNUSED,
10995 flagword *flagsp ATTRIBUTE_UNUSED,
10996 asection **secp,
10997 bfd_vma *valp)
10998{
10999 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
11000 valp))
11001 return FALSE;
11002
11003 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
11004}
11005
9d8504b1
PB
11006static void
11007ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11008{
11009 ppc_elf_final_write_processing(abfd, linker);
11010 elf_vxworks_final_write_processing(abfd, linker);
11011}
11012
11013/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11014 define it. */
11015#undef elf_backend_want_plt_sym
11016#define elf_backend_want_plt_sym 1
11017#undef elf_backend_want_got_plt
11018#define elf_backend_want_got_plt 1
11019#undef elf_backend_got_symbol_offset
11020#define elf_backend_got_symbol_offset 0
11021#undef elf_backend_plt_not_loaded
11022#define elf_backend_plt_not_loaded 0
11023#undef elf_backend_plt_readonly
11024#define elf_backend_plt_readonly 1
11025#undef elf_backend_got_header_size
11026#define elf_backend_got_header_size 12
11027
468392fb
AM
11028#undef bfd_elf32_get_synthetic_symtab
11029
9d8504b1
PB
11030#undef bfd_elf32_bfd_link_hash_table_create
11031#define bfd_elf32_bfd_link_hash_table_create \
11032 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
11033#undef elf_backend_add_symbol_hook
11034#define elf_backend_add_symbol_hook \
11035 ppc_elf_vxworks_add_symbol_hook
11036#undef elf_backend_link_output_symbol_hook
11037#define elf_backend_link_output_symbol_hook \
9c72ff84 11038 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
11039#undef elf_backend_final_write_processing
11040#define elf_backend_final_write_processing \
11041 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
11042#undef elf_backend_get_sec_type_attr
11043#define elf_backend_get_sec_type_attr \
11044 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
11045#undef elf_backend_emit_relocs
11046#define elf_backend_emit_relocs \
11047 elf_vxworks_emit_relocs
11048
11049#undef elf32_bed
11050#define elf32_bed ppc_elf_vxworks_bed
e054468f 11051#undef elf_backend_post_process_headers
9d8504b1
PB
11052
11053#include "elf32-target.h"
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