Fix erroneous backtrace on avrxmega architectures.
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
db434ba0 2 Copyright (C) 1994-2014 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"
70a38d42 38#include "elf-linux-psinfo.h"
252b5132 39
b9c361e0
JL
40typedef enum split16_format_type
41{
42 split16a_type = 0,
43 split16d_type
44}
45split16_format_type;
46
f0fe0e16 47/* RELA relocations are used here. */
252b5132 48
252b5132 49static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 51static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 53
70bccea4
AM
54/* Branch prediction bit for branch taken relocs. */
55#define BRANCH_PREDICT_BIT 0x200000
56/* Mask to set RA in memory instructions. */
57#define RA_REGISTER_MASK 0x001f0000
58/* Value to shift register by to insert RA. */
59#define RA_REGISTER_SHIFT 16
252b5132
RH
60
61/* The name of the dynamic interpreter. This is put in the .interp
62 section. */
252b5132
RH
63#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
64
d7128ce4 65/* For old-style PLT. */
252b5132
RH
66/* The number of single-slot PLT entries (the rest use two slots). */
67#define PLT_NUM_SINGLE_ENTRIES 8192
68
d7128ce4 69/* For new-style .glink and .plt. */
a6aa5195 70#define GLINK_PLTRESOLVE 16*4
d7128ce4 71#define GLINK_ENTRY_SIZE 4*4
a7f2871e 72#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 73
9d8504b1
PB
74/* VxWorks uses its own plt layout, filled in by the static linker. */
75
76/* The standard VxWorks PLT entry. */
77#define VXWORKS_PLT_ENTRY_SIZE 32
78static const bfd_vma ppc_elf_vxworks_plt_entry
79 [VXWORKS_PLT_ENTRY_SIZE / 4] =
80 {
81 0x3d800000, /* lis r12,0 */
82 0x818c0000, /* lwz r12,0(r12) */
83 0x7d8903a6, /* mtctr r12 */
84 0x4e800420, /* bctr */
85 0x39600000, /* li r11,0 */
86 0x48000000, /* b 14 <.PLT0resolve+0x4> */
87 0x60000000, /* nop */
88 0x60000000, /* nop */
89 };
90static const bfd_vma ppc_elf_vxworks_pic_plt_entry
91 [VXWORKS_PLT_ENTRY_SIZE / 4] =
92 {
93 0x3d9e0000, /* addis r12,r30,0 */
94 0x818c0000, /* lwz r12,0(r12) */
95 0x7d8903a6, /* mtctr r12 */
96 0x4e800420, /* bctr */
97 0x39600000, /* li r11,0 */
98 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
99 0x60000000, /* nop */
100 0x60000000, /* nop */
101 };
102
103/* The initial VxWorks PLT entry. */
104#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
105static const bfd_vma ppc_elf_vxworks_plt0_entry
106 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
107 {
108 0x3d800000, /* lis r12,0 */
109 0x398c0000, /* addi r12,r12,0 */
110 0x800c0008, /* lwz r0,8(r12) */
111 0x7c0903a6, /* mtctr r0 */
112 0x818c0004, /* lwz r12,4(r12) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
116 };
117static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
118 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
119 {
120 0x819e0008, /* lwz r12,8(r30) */
121 0x7d8903a6, /* mtctr r12 */
122 0x819e0004, /* lwz r12,4(r30) */
123 0x4e800420, /* bctr */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 0x60000000, /* nop */
128 };
129
130/* For executables, we have some additional relocations in
131 .rela.plt.unloaded, for the kernel loader. */
132
133/* The number of non-JMP_SLOT relocations per PLT0 slot. */
134#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
135/* The number of relocations in the PLTResolve slot. */
136#define VXWORKS_PLTRESOLVE_RELOCS 2
137/* The number of relocations in the PLTResolve slot when when creating
138 a shared library. */
139#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
140
d7128ce4 141/* Some instructions. */
d7128ce4 142#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
143#define ADDIS_11_30 0x3d7e0000
144#define ADDIS_12_12 0x3d8c0000
d7128ce4 145#define ADDI_11_11 0x396b0000
d7128ce4 146#define ADD_0_11_11 0x7c0b5a14
a7f2871e 147#define ADD_3_12_2 0x7c6c1214
d7128ce4 148#define ADD_11_0_11 0x7d605a14
a6aa5195
AM
149#define B 0x48000000
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 */
189 2, /* size (0 = byte, 1 = short, 2 = long) */
190 32, /* 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 */
416 bfd_elf_generic_reloc, /* special_function */
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 */
432 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
448 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
464 ppc_elf_addr16_ha_reloc, /* special_function */
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
RH
478 0, /* bitpos */
479 complain_overflow_signed, /* complain_on_overflow */
480 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
499 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
515 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
530 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
625 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
641 bfd_elf_generic_reloc, /* special_function */
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 */
657 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
673 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
689 ppc_elf_addr16_ha_reloc, /* special_function */
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 */
705 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
720 bfd_elf_generic_reloc, /* special_function */
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 */
735 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
750 bfd_elf_generic_reloc, /* special_function */
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 */
252b5132
RH
765 ppc_elf_addr16_ha_reloc, /* special_function */
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 */
7619e7c7
AM
1241 bfd_elf_generic_reloc, /* special_function */
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 */
7619e7c7
AM
1256 bfd_elf_generic_reloc, /* special_function */
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 */
1271 bfd_elf_generic_reloc, /* special_function */
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 */
1286 bfd_elf_generic_reloc, /* special_function */
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 */
25dbc73a
AM
1303 ppc_elf_addr16_ha_reloc, /* special_function */
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 */
25dbc73a
AM
1320 bfd_elf_generic_reloc, /* special_function */
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 */
25dbc73a
AM
1337 bfd_elf_generic_reloc, /* special_function */
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 */
1353 bfd_elf_generic_reloc, /* special_function */
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 */
1370 bfd_elf_generic_reloc, /* special_function */
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 */
1394 bfd_elf_generic_reloc, /* special_function */
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 */
1428 0xfe, /* dst_mask */
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 */
b9c361e0
JL
1454 bfd_elf_generic_reloc, /* special_function */
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 */
b9c361e0
JL
1469 bfd_elf_generic_reloc, /* special_function */
1470 "R_PPC_VLE_LO16D", /* name */
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 */
b9c361e0
JL
1484 bfd_elf_generic_reloc, /* special_function */
1485 "R_PPC_VLE_HI16A", /* name */
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 */
b9c361e0
JL
1499 bfd_elf_generic_reloc, /* special_function */
1500 "R_PPC_VLE_HI16D", /* name */
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 */
b9c361e0
JL
1514 bfd_elf_generic_reloc, /* special_function */
1515 "R_PPC_VLE_HA16A", /* name */
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 */
b9c361e0
JL
1529 bfd_elf_generic_reloc, /* special_function */
1530 "R_PPC_VLE_HA16D", /* name */
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 */
b9c361e0
JL
1546 bfd_elf_generic_reloc, /* special_function */
1547 "R_PPC_VLE_SDA21", /* name */
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 */
b9c361e0
JL
1561 bfd_elf_generic_reloc, /* special_function */
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 */
86c95733 1575 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1576 bfd_elf_generic_reloc, /* special_function */
1577 "R_PPC_VLE_SDAREL_LO16A", /* name */
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 */
86c95733 1590 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1591 bfd_elf_generic_reloc, /* special_function */
1592 "R_PPC_VLE_SDAREL_LO16D", /* name */
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. */
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 */
86c95733 1605 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1606 bfd_elf_generic_reloc, /* special_function */
1607 "R_PPC_VLE_SDAREL_HI16A", /* name */
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. */
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 */
86c95733 1620 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1621 bfd_elf_generic_reloc, /* special_function */
1622 "R_PPC_VLE_SDAREL_HI16D", /* name */
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. */
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 */
86c95733 1635 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1636 bfd_elf_generic_reloc, /* special_function */
1637 "R_PPC_VLE_SDAREL_HA16A", /* name */
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. */
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 */
86c95733 1650 complain_overflow_dont, /* complain_on_overflow */
b9c361e0
JL
1651 bfd_elf_generic_reloc, /* special_function */
1652 "R_PPC_VLE_SDAREL_HA16D", /* name */
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 */
e054468f
AM
1665 bfd_elf_generic_reloc, /* special_function */
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
25dbc73a
AM
1733 /* GNU extension to record C++ vtable hierarchy. */
1734 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1735 0, /* rightshift */
1736 0, /* size (0 = byte, 1 = short, 2 = long) */
1737 0, /* bitsize */
1738 FALSE, /* pc_relative */
1739 0, /* bitpos */
1740 complain_overflow_dont, /* complain_on_overflow */
1741 NULL, /* special_function */
1742 "R_PPC_GNU_VTINHERIT", /* name */
1743 FALSE, /* partial_inplace */
1744 0, /* src_mask */
1745 0, /* dst_mask */
1746 FALSE), /* pcrel_offset */
1747
1748 /* GNU extension to record C++ vtable member usage. */
1749 HOWTO (R_PPC_GNU_VTENTRY, /* 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_VTENTRY", /* name */
7619e7c7
AM
1758 FALSE, /* partial_inplace */
1759 0, /* src_mask */
25dbc73a 1760 0, /* dst_mask */
7619e7c7
AM
1761 FALSE), /* pcrel_offset */
1762
25dbc73a
AM
1763 /* Phony reloc to handle AIX style TOC entries. */
1764 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1765 0, /* rightshift */
1766 1, /* size (0 = byte, 1 = short, 2 = long) */
1767 16, /* bitsize */
1768 FALSE, /* pc_relative */
1769 0, /* bitpos */
25dbc73a 1770 complain_overflow_signed, /* complain_on_overflow */
7619e7c7 1771 bfd_elf_generic_reloc, /* special_function */
25dbc73a 1772 "R_PPC_TOC16", /* name */
7619e7c7
AM
1773 FALSE, /* partial_inplace */
1774 0, /* src_mask */
1775 0xffff, /* dst_mask */
1776 FALSE), /* pcrel_offset */
25dbc73a 1777};
70a38d42
SDJ
1778
1779/* External 32-bit PPC structure for PRPSINFO. This structure is
1780 ABI-defined, thus we choose to use char arrays here in order to
1781 avoid dealing with different types in different architectures.
1782
1783 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1784 most non-PPC architectures use `short int'.
1785
1786 This structure will ultimately be written in the corefile's note
1787 section, as the PRPSINFO. */
1788
1789struct elf_external_ppc_linux_prpsinfo32
1790 {
1791 char pr_state; /* Numeric process state. */
1792 char pr_sname; /* Char for pr_state. */
1793 char pr_zomb; /* Zombie. */
1794 char pr_nice; /* Nice val. */
1795 char pr_flag[4]; /* Flags. */
1796 char pr_uid[4];
1797 char pr_gid[4];
1798 char pr_pid[4];
1799 char pr_ppid[4];
1800 char pr_pgrp[4];
1801 char pr_sid[4];
1802 char pr_fname[16]; /* Filename of executable. */
1803 char pr_psargs[80]; /* Initial part of arg list. */
1804 };
1805
1806/* Helper macro to swap (properly handling endianess) things from the
1807 `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
1808 structure.
1809
1810 Note that FROM should be a pointer, and TO should be the explicit type. */
1811
1812#define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \
1813 do \
1814 { \
1815 H_PUT_8 (abfd, from->pr_state, &to.pr_state); \
1816 H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \
1817 H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \
1818 H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \
1819 H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \
1820 H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \
1821 H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \
1822 H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \
1823 H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \
1824 H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \
1825 H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \
1826 strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \
1827 strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
1828 } while (0)
1829
25dbc73a
AM
1830\f
1831/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1832
1833static void
1834ppc_elf_howto_init (void)
1835{
1836 unsigned int i, type;
1837
1838 for (i = 0;
1839 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1840 i++)
1841 {
1842 type = ppc_elf_howto_raw[i].type;
1843 if (type >= (sizeof (ppc_elf_howto_table)
1844 / sizeof (ppc_elf_howto_table[0])))
1845 abort ();
1846 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1847 }
1848}
1849
1850static reloc_howto_type *
1851ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1852 bfd_reloc_code_real_type code)
1853{
1854 enum elf_ppc_reloc_type r;
1855
1856 /* Initialize howto table if not already done. */
1857 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1858 ppc_elf_howto_init ();
1859
1860 switch (code)
1861 {
1862 default:
1863 return NULL;
1864
1865 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1866 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1867 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1868 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1869 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1870 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1871 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1872 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1873 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1874 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1875 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1876 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1877 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1878 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1879 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1880 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1881 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1882 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1883 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1884 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1885 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1886 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1887 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1888 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1889 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1890 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1891 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1892 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1893 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1894 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1895 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1896 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1897 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1898 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1899 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1900 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1901 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1902 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1903 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1904 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1905 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1906 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1907 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1908 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1909 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1910 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1911 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1912 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1913 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1914 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1915 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1916 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1917 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1918 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1919 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1920 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1921 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1922 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1923 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1924 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1925 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1926 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1927 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1928 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1929 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1930 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1931 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1932 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1933 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1934 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1935 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1936 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1937 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1938 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1939 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1940 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1941 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1942 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1943 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1944 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1945 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1946 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1947 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1948 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1949 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1950 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1951 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1952 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1953 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1954 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1955 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1956 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1957 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1958 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1959 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1960 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1961 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1962 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1963 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1964 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1965 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1966 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1967 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1968 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1969 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1970 r = R_PPC_VLE_SDAREL_LO16A;
1971 break;
1972 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1973 r = R_PPC_VLE_SDAREL_LO16D;
1974 break;
1975 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1976 r = R_PPC_VLE_SDAREL_HI16A;
1977 break;
1978 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1979 r = R_PPC_VLE_SDAREL_HI16D;
1980 break;
1981 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1982 r = R_PPC_VLE_SDAREL_HA16A;
1983 break;
1984 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1985 r = R_PPC_VLE_SDAREL_HA16D;
1986 break;
d7128ce4
AM
1987 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1988 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1989 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1990 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
25dbc73a
AM
1991 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1992 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1993 }
1994
1995 return ppc_elf_howto_table[r];
1996};
1997
157090f7
AM
1998static reloc_howto_type *
1999ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2000 const char *r_name)
2001{
2002 unsigned int i;
2003
2004 for (i = 0;
2005 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2006 i++)
2007 if (ppc_elf_howto_raw[i].name != NULL
2008 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2009 return &ppc_elf_howto_raw[i];
2010
2011 return NULL;
2012}
2013
25dbc73a
AM
2014/* Set the howto pointer for a PowerPC ELF reloc. */
2015
2016static void
2017ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2018 arelent *cache_ptr,
2019 Elf_Internal_Rela *dst)
2020{
2021 /* Initialize howto table if not already done. */
2022 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2023 ppc_elf_howto_init ();
2024
2025 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
2026 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
375de94a
AM
2027
2028 /* Just because the above assert didn't trigger doesn't mean that
2029 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2030 if (!cache_ptr->howto)
2031 {
2032 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2033 abfd, ELF32_R_TYPE (dst->r_info));
2034 bfd_set_error (bfd_error_bad_value);
2035
2036 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2037 }
25dbc73a
AM
2038}
2039
d7128ce4 2040/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2041
2042static bfd_reloc_status_type
2043ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2044 arelent *reloc_entry,
2045 asymbol *symbol,
2046 void *data ATTRIBUTE_UNUSED,
2047 asection *input_section,
2048 bfd *output_bfd,
2049 char **error_message ATTRIBUTE_UNUSED)
2050{
2051 bfd_vma relocation;
2052
2053 if (output_bfd != NULL)
2054 {
2055 reloc_entry->address += input_section->output_offset;
2056 return bfd_reloc_ok;
2057 }
2058
2059 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2060 return bfd_reloc_outofrange;
2061
2062 if (bfd_is_com_section (symbol->section))
2063 relocation = 0;
2064 else
2065 relocation = symbol->value;
2066
2067 relocation += symbol->section->output_section->vma;
2068 relocation += symbol->section->output_offset;
2069 relocation += reloc_entry->addend;
d7128ce4
AM
2070 if (reloc_entry->howto->pc_relative)
2071 relocation -= reloc_entry->address;
25dbc73a
AM
2072
2073 reloc_entry->addend += (relocation & 0x8000) << 1;
2074
2075 return bfd_reloc_continue;
2076}
2077
2078static bfd_reloc_status_type
2079ppc_elf_unhandled_reloc (bfd *abfd,
2080 arelent *reloc_entry,
2081 asymbol *symbol,
2082 void *data,
2083 asection *input_section,
2084 bfd *output_bfd,
2085 char **error_message)
2086{
2087 /* If this is a relocatable link (output_bfd test tells us), just
2088 call the generic function. Any adjustment will be done at final
2089 link time. */
2090 if (output_bfd != NULL)
2091 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2092 input_section, output_bfd, error_message);
2093
2094 if (error_message != NULL)
2095 {
2096 static char buf[60];
2097 sprintf (buf, _("generic linker can't handle %s"),
2098 reloc_entry->howto->name);
2099 *error_message = buf;
2100 }
2101 return bfd_reloc_dangerous;
2102}
2103\f
2104/* Sections created by the linker. */
2105
2106typedef struct elf_linker_section
2107{
c9a2f333 2108 /* Pointer to the bfd section. */
25dbc73a 2109 asection *section;
c9a2f333
AM
2110 /* Section name. */
2111 const char *name;
2112 /* Associated bss section name. */
2113 const char *bss_name;
2114 /* Associated symbol name. */
2115 const char *sym_name;
046183de
AM
2116 /* Associated symbol. */
2117 struct elf_link_hash_entry *sym;
25dbc73a
AM
2118} elf_linker_section_t;
2119
2120/* Linked list of allocated pointer entries. This hangs off of the
2121 symbol lists, and provides allows us to return different pointers,
2122 based on different addend's. */
2123
2124typedef struct elf_linker_section_pointers
2125{
2126 /* next allocated pointer for this symbol */
2127 struct elf_linker_section_pointers *next;
2128 /* offset of pointer from beginning of section */
2129 bfd_vma offset;
2130 /* addend used */
2131 bfd_vma addend;
2132 /* which linker section this is */
2133 elf_linker_section_t *lsect;
25dbc73a
AM
2134} elf_linker_section_pointers_t;
2135
2136struct ppc_elf_obj_tdata
2137{
2138 struct elf_obj_tdata elf;
2139
2140 /* A mapping from local symbols to offsets into the various linker
2141 sections added. This is index by the symbol index. */
2142 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2143
2144 /* Flags used to auto-detect plt type. */
2145 unsigned int makes_plt_call : 1;
2146 unsigned int has_rel16 : 1;
25dbc73a
AM
2147};
2148
2149#define ppc_elf_tdata(bfd) \
2150 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2151
25dbc73a
AM
2152#define elf_local_ptr_offsets(bfd) \
2153 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2154
0c8d6e5c
AM
2155#define is_ppc_elf(bfd) \
2156 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2157 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2158
25dbc73a 2159/* Override the generic function because we store some extras. */
7619e7c7 2160
25dbc73a
AM
2161static bfd_boolean
2162ppc_elf_mkobject (bfd *abfd)
2163{
0ffa91dd 2164 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2165 PPC32_ELF_DATA);
25dbc73a 2166}
7619e7c7 2167
25dbc73a
AM
2168/* Fix bad default arch selected for a 32 bit input bfd when the
2169 default is 64 bit. */
7619e7c7 2170
25dbc73a
AM
2171static bfd_boolean
2172ppc_elf_object_p (bfd *abfd)
2173{
2174 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2175 {
2176 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2177
25dbc73a
AM
2178 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2179 {
2180 /* Relies on arch after 64 bit default being 32 bit default. */
2181 abfd->arch_info = abfd->arch_info->next;
2182 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2183 }
2184 }
2185 return TRUE;
2186}
7619e7c7 2187
25dbc73a 2188/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2189
25dbc73a
AM
2190static bfd_boolean
2191ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2192{
2193 BFD_ASSERT (!elf_flags_init (abfd)
2194 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2195
25dbc73a
AM
2196 elf_elfheader (abfd)->e_flags = flags;
2197 elf_flags_init (abfd) = TRUE;
2198 return TRUE;
2199}
2200
25dbc73a 2201/* Support for core dump NOTE sections. */
deaaf2f3 2202
b34976b6 2203static bfd_boolean
25dbc73a 2204ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2205{
25dbc73a
AM
2206 int offset;
2207 unsigned int size;
252b5132 2208
25dbc73a
AM
2209 switch (note->descsz)
2210 {
2211 default:
2212 return FALSE;
252b5132 2213
25dbc73a
AM
2214 case 268: /* Linux/PPC. */
2215 /* pr_cursig */
228e534f 2216 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2217
25dbc73a 2218 /* pr_pid */
228e534f 2219 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2220
25dbc73a
AM
2221 /* pr_reg */
2222 offset = 72;
2223 size = 192;
deaaf2f3 2224
25dbc73a
AM
2225 break;
2226 }
deaaf2f3 2227
25dbc73a
AM
2228 /* Make a ".reg/999" section. */
2229 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2230 size, note->descpos + offset);
2231}
252b5132 2232
25dbc73a
AM
2233static bfd_boolean
2234ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2235{
2236 switch (note->descsz)
deaaf2f3 2237 {
25dbc73a
AM
2238 default:
2239 return FALSE;
deaaf2f3 2240
25dbc73a 2241 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2242 elf_tdata (abfd)->core->pid
bc989cdc 2243 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2244 elf_tdata (abfd)->core->program
25dbc73a 2245 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2246 elf_tdata (abfd)->core->command
25dbc73a
AM
2247 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2248 }
9abc968f 2249
25dbc73a
AM
2250 /* Note that for some reason, a spurious space is tacked
2251 onto the end of the args in some (at least one anyway)
2252 implementations, so strip it off if it exists. */
70bccea4 2253
25dbc73a 2254 {
228e534f 2255 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2256 int n = strlen (command);
70bccea4 2257
25dbc73a
AM
2258 if (0 < n && command[n - 1] == ' ')
2259 command[n - 1] = '\0';
2260 }
deaaf2f3 2261
25dbc73a
AM
2262 return TRUE;
2263}
deaaf2f3 2264
70a38d42
SDJ
2265char *
2266elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
2267 const struct elf_internal_linux_prpsinfo *prpsinfo)
2268{
2269 struct elf_external_ppc_linux_prpsinfo32 data;
2270
2271 memset (&data, 0, sizeof (data));
2272 PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
2273
2274 return elfcore_write_note (abfd, buf, bufsiz,
2275 "CORE", NT_PRPSINFO, &data, sizeof (data));
2276}
2277
183e98be
AM
2278static char *
2279ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2280{
2281 switch (note_type)
2282 {
2283 default:
2284 return NULL;
2285
2286 case NT_PRPSINFO:
2287 {
2288 char data[128];
2289 va_list ap;
2290
2291 va_start (ap, note_type);
75cd47ed 2292 memset (data, 0, sizeof (data));
183e98be
AM
2293 strncpy (data + 32, va_arg (ap, const char *), 16);
2294 strncpy (data + 48, va_arg (ap, const char *), 80);
2295 va_end (ap);
2296 return elfcore_write_note (abfd, buf, bufsiz,
2297 "CORE", note_type, data, sizeof (data));
2298 }
2299
2300 case NT_PRSTATUS:
2301 {
2302 char data[268];
2303 va_list ap;
2304 long pid;
2305 int cursig;
2306 const void *greg;
2307
2308 va_start (ap, note_type);
2309 memset (data, 0, 72);
2310 pid = va_arg (ap, long);
2311 bfd_put_32 (abfd, pid, data + 24);
2312 cursig = va_arg (ap, int);
2313 bfd_put_16 (abfd, cursig, data + 12);
2314 greg = va_arg (ap, const void *);
2315 memcpy (data + 72, greg, 192);
2316 memset (data + 264, 0, 4);
2317 va_end (ap);
2318 return elfcore_write_note (abfd, buf, bufsiz,
2319 "CORE", note_type, data, sizeof (data));
2320 }
2321 }
2322}
2323
b9c361e0 2324static flagword
68ffbac6 2325ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2326{
2327
2328 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2329 return SHF_PPC_VLE;
2330
2331 return 0;
2332}
2333
2334/* Add the VLE flag if required. */
2335
2336bfd_boolean
2337ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
2338{
2339 if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
2340 && (shdr->sh_flags & SHF_EXECINSTR) != 0)
2341 shdr->sh_flags |= SHF_PPC_VLE;
2342
2343 return TRUE;
2344}
2345
25dbc73a
AM
2346/* Return address for Ith PLT stub in section PLT, for relocation REL
2347 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2348
25dbc73a
AM
2349static bfd_vma
2350ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2351 const asection *plt ATTRIBUTE_UNUSED,
2352 const arelent *rel)
2353{
2354 return rel->address;
2355}
deaaf2f3 2356
25dbc73a 2357/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2358 is called when bfd_section_from_shdr finds a section with an unknown
2359 type. */
deaaf2f3 2360
25dbc73a 2361static bfd_boolean
6dc132d9
L
2362ppc_elf_section_from_shdr (bfd *abfd,
2363 Elf_Internal_Shdr *hdr,
2364 const char *name,
2365 int shindex)
25dbc73a
AM
2366{
2367 asection *newsect;
2368 flagword flags;
d1c6de6f 2369
6dc132d9 2370 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2371 return FALSE;
deaaf2f3 2372
25dbc73a
AM
2373 newsect = hdr->bfd_section;
2374 flags = bfd_get_section_flags (abfd, newsect);
2375 if (hdr->sh_flags & SHF_EXCLUDE)
2376 flags |= SEC_EXCLUDE;
9abc968f 2377
25dbc73a
AM
2378 if (hdr->sh_type == SHT_ORDERED)
2379 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2380
25dbc73a
AM
2381 bfd_set_section_flags (abfd, newsect, flags);
2382 return TRUE;
2383}
2384
2385/* Set up any other section flags and such that may be necessary. */
2386
2387static bfd_boolean
2388ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2389 Elf_Internal_Shdr *shdr,
2390 asection *asect)
2391{
25dbc73a
AM
2392 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2393 shdr->sh_type = SHT_ORDERED;
2394
2395 return TRUE;
2396}
2397
2398/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2399 need to bump up the number of section headers. */
2400
2401static int
a6b96beb
AM
2402ppc_elf_additional_program_headers (bfd *abfd,
2403 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2404{
2405 asection *s;
2406 int ret = 0;
d1c6de6f 2407
25dbc73a
AM
2408 s = bfd_get_section_by_name (abfd, ".sbss2");
2409 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2410 ++ret;
d1c6de6f 2411
25dbc73a
AM
2412 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2413 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2414 ++ret;
deaaf2f3 2415
25dbc73a
AM
2416 return ret;
2417}
deaaf2f3 2418
68ffbac6 2419/* Modify the segment map for VLE executables. */
b9c361e0
JL
2420
2421bfd_boolean
2422ppc_elf_modify_segment_map (bfd *abfd,
2423 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2424{
2425 struct elf_segment_map *m, *n;
2426 bfd_size_type amt;
2427 unsigned int j, k;
2428 bfd_boolean sect0_vle, sectj_vle;
2429
2430 /* At this point in the link, output sections have already been sorted by
2431 LMA and assigned to segments. All that is left to do is to ensure
2432 there is no mixing of VLE & non-VLE sections in a text segment.
2433 If we find that case, we split the segment.
2434 We maintain the original output section order. */
2435
12bd6957 2436 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0
JL
2437 {
2438 if (m->count == 0)
2439 continue;
2440
94caa966 2441 sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
b9c361e0
JL
2442 for (j = 1; j < m->count; ++j)
2443 {
94caa966
AM
2444 sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
2445
2446 if (sectj_vle != sect0_vle)
b9c361e0
JL
2447 break;
2448 }
2449 if (j >= m->count)
2450 continue;
2451
b9c361e0
JL
2452 /* sections 0..j-1 stay in this (current) segment,
2453 the remainder are put in a new segment.
2454 The scan resumes with the new segment. */
2455
2456 /* Fix the new segment. */
2457 amt = sizeof (struct elf_segment_map);
2458 amt += (m->count - j - 1) * sizeof (asection *);
2459 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2460 if (n == NULL)
2461 return FALSE;
2462
2463 n->p_type = PT_LOAD;
2464 n->p_flags = PF_X | PF_R;
2465 if (sectj_vle)
2466 n->p_flags |= PF_PPC_VLE;
2467 n->count = m->count - j;
2468 for (k = 0; k < n->count; ++k)
2469 {
2470 n->sections[k] = m->sections[j+k];
2471 m->sections[j+k] = NULL;
2472 }
2473 n->next = m->next;
2474 m->next = n;
2475
2476 /* Fix the current segment */
2477 m->count = j;
2478 }
2479
2480 return TRUE;
2481}
2482
25dbc73a
AM
2483/* Add extra PPC sections -- Note, for now, make .sbss2 and
2484 .PPC.EMB.sbss0 a normal section, and not a bss section so
2485 that the linker doesn't crater when trying to make more than
2486 2 sections. */
e656e369 2487
b35d266b 2488static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2489{
0112cd26
NC
2490 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2491 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2492 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2493 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2494 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2495 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2496 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2497 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2498 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2499 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2500};
2501
551b43fd
AM
2502/* This is what we want for new plt/got. */
2503static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2504 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2505
2506static const struct bfd_elf_special_section *
2507ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 2508{
b35d266b 2509 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2510
2511 /* See if this is one of the special sections. */
2512 if (sec->name == NULL)
2513 return NULL;
2514
2515 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2516 sec->use_rela_p);
2517 if (ssect != NULL)
2518 {
2519 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2520 ssect = &ppc_alt_plt;
2521 return ssect;
2522 }
2523
2524 return _bfd_elf_get_sec_type_attr (abfd, sec);
2525}
25dbc73a
AM
2526\f
2527/* Very simple linked list structure for recording apuinfo values. */
2528typedef struct apuinfo_list
2529{
2530 struct apuinfo_list *next;
2531 unsigned long value;
2532}
2533apuinfo_list;
e656e369 2534
25dbc73a 2535static apuinfo_list *head;
f2faa800 2536static bfd_boolean apuinfo_set;
deaaf2f3 2537
25dbc73a
AM
2538static void
2539apuinfo_list_init (void)
2540{
2541 head = NULL;
f2faa800 2542 apuinfo_set = FALSE;
25dbc73a 2543}
9abc968f 2544
25dbc73a
AM
2545static void
2546apuinfo_list_add (unsigned long value)
2547{
2548 apuinfo_list *entry = head;
deaaf2f3 2549
25dbc73a
AM
2550 while (entry != NULL)
2551 {
2552 if (entry->value == value)
2553 return;
2554 entry = entry->next;
2555 }
b4a38de6 2556
25dbc73a
AM
2557 entry = bfd_malloc (sizeof (* entry));
2558 if (entry == NULL)
2559 return;
e656e369 2560
25dbc73a
AM
2561 entry->value = value;
2562 entry->next = head;
2563 head = entry;
2564}
9abc968f 2565
25dbc73a
AM
2566static unsigned
2567apuinfo_list_length (void)
2568{
2569 apuinfo_list *entry;
2570 unsigned long count;
9abc968f 2571
25dbc73a
AM
2572 for (entry = head, count = 0;
2573 entry;
2574 entry = entry->next)
2575 ++ count;
e656e369 2576
25dbc73a
AM
2577 return count;
2578}
eea6121a 2579
25dbc73a
AM
2580static inline unsigned long
2581apuinfo_list_element (unsigned long number)
2582{
2583 apuinfo_list * entry;
e656e369 2584
25dbc73a
AM
2585 for (entry = head;
2586 entry && number --;
2587 entry = entry->next)
2588 ;
252b5132 2589
25dbc73a
AM
2590 return entry ? entry->value : 0;
2591}
2592
2593static void
2594apuinfo_list_finish (void)
2595{
2596 apuinfo_list *entry;
2597
2598 for (entry = head; entry;)
252b5132 2599 {
25dbc73a
AM
2600 apuinfo_list *next = entry->next;
2601 free (entry);
2602 entry = next;
2603 }
9abc968f 2604
25dbc73a
AM
2605 head = NULL;
2606}
9abc968f 2607
25dbc73a
AM
2608#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2609#define APUINFO_LABEL "APUinfo"
9abc968f 2610
25dbc73a
AM
2611/* Scan the input BFDs and create a linked list of
2612 the APUinfo values that will need to be emitted. */
9abc968f 2613
25dbc73a
AM
2614static void
2615ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2616{
2617 bfd *ibfd;
2618 asection *asec;
deddc40b
NS
2619 char *buffer = NULL;
2620 bfd_size_type largest_input_size = 0;
25dbc73a 2621 unsigned i;
25dbc73a
AM
2622 unsigned long length;
2623 const char *error_message = NULL;
9abc968f 2624
25dbc73a
AM
2625 if (link_info == NULL)
2626 return;
9abc968f 2627
25dbc73a 2628 apuinfo_list_init ();
252b5132 2629
25dbc73a
AM
2630 /* Read in the input sections contents. */
2631 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2632 {
25dbc73a 2633 unsigned long datum;
252b5132 2634
25dbc73a
AM
2635 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2636 if (asec == NULL)
2637 continue;
252b5132 2638
deddc40b 2639 error_message = _("corrupt %s section in %B");
25dbc73a 2640 length = asec->size;
deddc40b
NS
2641 if (length < 20)
2642 goto fail;
2643
f2faa800 2644 apuinfo_set = TRUE;
deddc40b 2645 if (largest_input_size < asec->size)
25dbc73a 2646 {
deddc40b
NS
2647 if (buffer)
2648 free (buffer);
2649 largest_input_size = asec->size;
2650 buffer = bfd_malloc (largest_input_size);
2651 if (!buffer)
2652 return;
25dbc73a 2653 }
5b914448 2654
25dbc73a 2655 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2656 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a
AM
2657 {
2658 error_message = _("unable to read in %s section from %B");
2659 goto fail;
2660 }
252b5132 2661
25dbc73a
AM
2662 /* Verify the contents of the header. Note - we have to
2663 extract the values this way in order to allow for a
2664 host whose endian-ness is different from the target. */
deddc40b 2665 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2666 if (datum != sizeof APUINFO_LABEL)
2667 goto fail;
252b5132 2668
deddc40b 2669 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2670 if (datum != 0x2)
2671 goto fail;
252b5132 2672
deddc40b 2673 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2674 goto fail;
252b5132 2675
25dbc73a 2676 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2677 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2678 if (datum + 20 != length)
2679 goto fail;
2680
25dbc73a
AM
2681 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2682 for (i = 0; i < datum; i += 4)
deddc40b 2683 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2684 }
2685
25dbc73a 2686 error_message = NULL;
252b5132 2687
f2faa800 2688 if (apuinfo_set)
deddc40b 2689 {
f2faa800
NS
2690 /* Compute the size of the output section. */
2691 unsigned num_entries = apuinfo_list_length ();
5b914448 2692
deddc40b
NS
2693 /* Set the output section size, if it exists. */
2694 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2695
deddc40b
NS
2696 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2697 {
2698 ibfd = abfd;
2699 error_message = _("warning: unable to set size of %s section in %B");
2700 }
2701 }
25dbc73a
AM
2702
2703 fail:
deddc40b
NS
2704 if (buffer)
2705 free (buffer);
25dbc73a
AM
2706
2707 if (error_message)
2708 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2709}
252b5132 2710
25dbc73a
AM
2711/* Prevent the output section from accumulating the input sections'
2712 contents. We have already stored this in our linked list structure. */
252b5132 2713
25dbc73a
AM
2714static bfd_boolean
2715ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2716 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2717 asection *asec,
2718 bfd_byte *contents ATTRIBUTE_UNUSED)
2719{
f2faa800 2720 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2721}
2722
25dbc73a
AM
2723/* Finally we can generate the output section. */
2724
2725static void
2726ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2727{
25dbc73a
AM
2728 bfd_byte *buffer;
2729 asection *asec;
2730 unsigned i;
2731 unsigned num_entries;
2732 bfd_size_type length;
7619e7c7 2733
25dbc73a
AM
2734 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2735 if (asec == NULL)
2736 return;
2737
f2faa800 2738 if (!apuinfo_set)
25dbc73a
AM
2739 return;
2740
2741 length = asec->size;
2742 if (length < 20)
2743 return;
2744
2745 buffer = bfd_malloc (length);
2746 if (buffer == NULL)
7619e7c7 2747 {
25dbc73a
AM
2748 (*_bfd_error_handler)
2749 (_("failed to allocate space for new APUinfo section."));
2750 return;
7619e7c7 2751 }
7619e7c7 2752
25dbc73a
AM
2753 /* Create the apuinfo header. */
2754 num_entries = apuinfo_list_length ();
2755 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2756 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2757 bfd_put_32 (abfd, 0x2, buffer + 8);
2758 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2759
25dbc73a
AM
2760 length = 20;
2761 for (i = 0; i < num_entries; i++)
feee612b 2762 {
25dbc73a
AM
2763 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2764 length += 4;
feee612b 2765 }
feee612b 2766
25dbc73a
AM
2767 if (length != asec->size)
2768 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2769
25dbc73a
AM
2770 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2771 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2772
25dbc73a
AM
2773 free (buffer);
2774
2775 apuinfo_list_finish ();
252b5132 2776}
25dbc73a 2777\f
7382d32a 2778static bfd_boolean
c6dd29ce 2779is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2780{
c6dd29ce 2781 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2782
c6dd29ce 2783 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2784 return FALSE;
2785
c6dd29ce
AM
2786 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2787 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2788 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2789 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2790}
2791
468392fb
AM
2792static bfd_boolean
2793section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2794{
2795 bfd_vma vma = *(bfd_vma *) ptr;
2796 return ((section->flags & SEC_ALLOC) != 0
2797 && section->vma <= vma
2798 && vma < section->vma + section->size);
2799}
2800
2801static long
2802ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2803 long dynsymcount, asymbol **dynsyms,
2804 asymbol **ret)
2805{
2806 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2807 asection *plt, *relplt, *dynamic, *glink;
2808 bfd_vma glink_vma = 0;
2809 bfd_vma resolv_vma = 0;
2810 bfd_vma stub_vma;
2811 asymbol *s;
2812 arelent *p;
2813 long count, i;
2814 size_t size;
2815 char *names;
2816 bfd_byte buf[4];
2817
2818 *ret = NULL;
2819
2820 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2821 return 0;
2822
2823 if (dynsymcount <= 0)
2824 return 0;
2825
2826 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2827 if (relplt == NULL)
2828 return 0;
2829
2830 plt = bfd_get_section_by_name (abfd, ".plt");
2831 if (plt == NULL)
2832 return 0;
2833
2834 /* Call common code to handle old-style executable PLTs. */
2835 if (elf_section_flags (plt) & SHF_EXECINSTR)
2836 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2837 dynsymcount, dynsyms, ret);
2838
2839 /* If this object was prelinked, the prelinker stored the address
2840 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2841 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2842 if (dynamic != NULL)
2843 {
2844 bfd_byte *dynbuf, *extdyn, *extdynend;
2845 size_t extdynsize;
2846 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2847
2848 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2849 return -1;
2850
2851 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2852 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2853
2854 extdyn = dynbuf;
2855 extdynend = extdyn + dynamic->size;
2856 for (; extdyn < extdynend; extdyn += extdynsize)
2857 {
2858 Elf_Internal_Dyn dyn;
2859 (*swap_dyn_in) (abfd, extdyn, &dyn);
2860
2861 if (dyn.d_tag == DT_NULL)
2862 break;
2863
2864 if (dyn.d_tag == DT_PPC_GOT)
2865 {
2866 unsigned int g_o_t = dyn.d_un.d_val;
2867 asection *got = bfd_get_section_by_name (abfd, ".got");
2868 if (got != NULL
2869 && bfd_get_section_contents (abfd, got, buf,
2870 g_o_t - got->vma + 4, 4))
2871 glink_vma = bfd_get_32 (abfd, buf);
2872 break;
2873 }
2874 }
2875 free (dynbuf);
2876 }
2877
2878 /* Otherwise we read the first plt entry. */
2879 if (glink_vma == 0)
2880 {
2881 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2882 glink_vma = bfd_get_32 (abfd, buf);
2883 }
2884
2885 if (glink_vma == 0)
2886 return 0;
2887
2888 /* The .glink section usually does not survive the final
2889 link; search for the section (usually .text) where the
2890 glink stubs now reside. */
2891 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2892 if (glink == NULL)
2893 return 0;
2894
2895 /* Determine glink PLT resolver by reading the relative branch
2896 from the first glink stub. */
2897 if (bfd_get_section_contents (abfd, glink, buf,
2898 glink_vma - glink->vma, 4))
2899 {
2900 unsigned int insn = bfd_get_32 (abfd, buf);
2901
2902 /* The first glink stub may either branch to the resolver ... */
2903 insn ^= B;
2904 if ((insn & ~0x3fffffc) == 0)
2905 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2906
2907 /* ... or fall through a bunch of NOPs. */
2908 else if ((insn ^ B ^ NOP) == 0)
2909 for (i = 4;
2910 bfd_get_section_contents (abfd, glink, buf,
2911 glink_vma - glink->vma + i, 4);
2912 i += 4)
2913 if (bfd_get_32 (abfd, buf) != NOP)
2914 {
2915 resolv_vma = glink_vma + i;
2916 break;
2917 }
2918 }
2919
7382d32a
AM
2920 count = relplt->size / sizeof (Elf32_External_Rela);
2921 stub_vma = glink_vma - (bfd_vma) count * 16;
2922 /* If the stubs are those for -shared/-pie then we might have
2923 multiple stubs for each plt entry. If that is the case then
2924 there is no way to associate stubs with their plt entries short
2925 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
2926 if (!is_nonpic_glink_stub (abfd, glink,
2927 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
2928 return 0;
2929
468392fb
AM
2930 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2931 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2932 return -1;
2933
468392fb
AM
2934 size = count * sizeof (asymbol);
2935 p = relplt->relocation;
2936 for (i = 0; i < count; i++, p++)
e054468f
AM
2937 {
2938 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2939 if (p->addend != 0)
2940 size += sizeof ("+0x") - 1 + 8;
2941 }
468392fb
AM
2942
2943 size += sizeof (asymbol) + sizeof ("__glink");
2944
2945 if (resolv_vma)
2946 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2947
2948 s = *ret = bfd_malloc (size);
2949 if (s == NULL)
2950 return -1;
2951
2952 names = (char *) (s + count + 1 + (resolv_vma != 0));
2953 p = relplt->relocation;
2954 for (i = 0; i < count; i++, p++)
2955 {
2956 size_t len;
2957
2958 *s = **p->sym_ptr_ptr;
2959 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2960 we are defining a symbol, ensure one of them is set. */
2961 if ((s->flags & BSF_LOCAL) == 0)
2962 s->flags |= BSF_GLOBAL;
6ba2a415 2963 s->flags |= BSF_SYNTHETIC;
468392fb
AM
2964 s->section = glink;
2965 s->value = stub_vma - glink->vma;
2966 s->name = names;
2967 s->udata.p = NULL;
2968 len = strlen ((*p->sym_ptr_ptr)->name);
2969 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2970 names += len;
e054468f
AM
2971 if (p->addend != 0)
2972 {
2973 memcpy (names, "+0x", sizeof ("+0x") - 1);
2974 names += sizeof ("+0x") - 1;
2975 bfd_sprintf_vma (abfd, names, p->addend);
2976 names += strlen (names);
2977 }
468392fb
AM
2978 memcpy (names, "@plt", sizeof ("@plt"));
2979 names += sizeof ("@plt");
2980 ++s;
2981 stub_vma += 16;
2982 }
2983
2984 /* Add a symbol at the start of the glink branch table. */
86a4952b 2985 memset (s, 0, sizeof *s);
468392fb 2986 s->the_bfd = abfd;
6ba2a415 2987 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
2988 s->section = glink;
2989 s->value = glink_vma - glink->vma;
2990 s->name = names;
2991 memcpy (names, "__glink", sizeof ("__glink"));
2992 names += sizeof ("__glink");
2993 s++;
2994 count++;
2995
2996 if (resolv_vma)
2997 {
2998 /* Add a symbol for the glink PLT resolver. */
86a4952b 2999 memset (s, 0, sizeof *s);
468392fb 3000 s->the_bfd = abfd;
6ba2a415 3001 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3002 s->section = glink;
3003 s->value = resolv_vma - glink->vma;
3004 s->name = names;
3005 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3006 names += sizeof ("__glink_PLTresolve");
3007 s++;
3008 count++;
3009 }
3010
3011 return count;
3012}
3013\f
25dbc73a
AM
3014/* The following functions are specific to the ELF linker, while
3015 functions above are used generally. They appear in this file more
3016 or less in the order in which they are called. eg.
3017 ppc_elf_check_relocs is called early in the link process,
3018 ppc_elf_finish_dynamic_sections is one of the last functions
3019 called. */
252b5132 3020
a6aa5195 3021/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3022 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3023struct plt_entry
3024{
3025 struct plt_entry *next;
3026
3027 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3028 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3029 GOT pointer reg. It will always be at least 32768. (Current
3030 gcc always uses an offset of 32768, but ld -r will pack .got2
3031 sections together resulting in larger offsets). */
a6aa5195
AM
3032 bfd_vma addend;
3033
3034 /* The .got2 section. */
3035 asection *sec;
3036
3037 /* PLT refcount or offset. */
3038 union
3039 {
3040 bfd_signed_vma refcount;
3041 bfd_vma offset;
3042 } plt;
3043
3044 /* .glink stub offset. */
3045 bfd_vma glink_offset;
3046};
3047
1d483afe 3048/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
3049 selects those that must be copied when linking a shared library,
3050 even when the symbol is local. */
252b5132 3051
1d483afe
AM
3052static int
3053must_be_dyn_reloc (struct bfd_link_info *info,
3054 enum elf_ppc_reloc_type r_type)
3055{
3056 switch (r_type)
3057 {
3058 default:
3059 return 1;
3060
3061 case R_PPC_REL24:
3062 case R_PPC_REL14:
3063 case R_PPC_REL14_BRTAKEN:
3064 case R_PPC_REL14_BRNTAKEN:
3065 case R_PPC_REL32:
3066 return 0;
3067
3068 case R_PPC_TPREL32:
3069 case R_PPC_TPREL16:
3070 case R_PPC_TPREL16_LO:
3071 case R_PPC_TPREL16_HI:
3072 case R_PPC_TPREL16_HA:
3073 return !info->executable;
3074 }
3075}
252b5132 3076
25dbc73a
AM
3077/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3078 copying dynamic variables from a shared lib into an app's dynbss
3079 section, and instead use a dynamic relocation to point into the
3080 shared lib. */
3081#define ELIMINATE_COPY_RELOCS 1
252b5132 3082
f95f8542
AM
3083/* Used to track dynamic relocations for local symbols. */
3084struct ppc_dyn_relocs
3085{
3086 struct ppc_dyn_relocs *next;
3087
3088 /* The input section of the reloc. */
3089 asection *sec;
3090
3091 /* Total number of relocs copied for the input section. */
3092 unsigned int count : 31;
3093
3094 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3095 unsigned int ifunc : 1;
3096};
3097
25dbc73a 3098/* PPC ELF linker hash entry. */
252b5132 3099
25dbc73a
AM
3100struct ppc_elf_link_hash_entry
3101{
3102 struct elf_link_hash_entry elf;
252b5132 3103
25dbc73a
AM
3104 /* If this symbol is used in the linker created sections, the processor
3105 specific backend uses this field to map the field into the offset
3106 from the beginning of the section. */
3107 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3108
25dbc73a 3109 /* Track dynamic relocs copied for this symbol. */
6061a67d 3110 struct elf_dyn_relocs *dyn_relocs;
252b5132 3111
25dbc73a
AM
3112 /* Contexts in which symbol is used in the GOT (or TOC).
3113 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3114 corresponding relocs are encountered during check_relocs.
3115 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3116 indicate the corresponding GOT entry type is not needed. */
3117#define TLS_GD 1 /* GD reloc. */
3118#define TLS_LD 2 /* LD reloc. */
3119#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3120#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3121#define TLS_TLS 16 /* Any TLS reloc. */
3122#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3123#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3124 char tls_mask;
4dc4a9a5
DJ
3125
3126 /* Nonzero if we have seen a small data relocation referring to this
3127 symbol. */
3128 unsigned char has_sda_refs;
25dbc73a 3129};
252b5132 3130
25dbc73a
AM
3131#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3132
3133/* PPC ELF linker hash table. */
3134
3135struct ppc_elf_link_hash_table
3136{
3137 struct elf_link_hash_table elf;
3138
5446cbdf
AM
3139 /* Various options passed from the linker. */
3140 struct ppc_elf_params *params;
3141
25dbc73a
AM
3142 /* Short-cuts to get to dynamic linker sections. */
3143 asection *got;
3144 asection *relgot;
d7128ce4 3145 asection *glink;
25dbc73a
AM
3146 asection *plt;
3147 asection *relplt;
e054468f
AM
3148 asection *iplt;
3149 asection *reliplt;
25dbc73a
AM
3150 asection *dynbss;
3151 asection *relbss;
3152 asection *dynsbss;
3153 asection *relsbss;
c9a2f333 3154 elf_linker_section_t sdata[2];
25dbc73a 3155 asection *sbss;
6177242a 3156 asection *glink_eh_frame;
25dbc73a 3157
016687f8
AM
3158 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3159 asection *srelplt2;
3160
3161 /* The .got.plt section (VxWorks only)*/
3162 asection *sgotplt;
3163
1d483afe 3164 /* Shortcut to __tls_get_addr. */
25dbc73a 3165 struct elf_link_hash_entry *tls_get_addr;
252b5132 3166
016687f8
AM
3167 /* The bfd that forced an old-style PLT. */
3168 bfd *old_bfd;
5b914448 3169
25dbc73a
AM
3170 /* TLS local dynamic got entry handling. */
3171 union {
3172 bfd_signed_vma refcount;
3173 bfd_vma offset;
3174 } tlsld_got;
252b5132 3175
c6dd29ce 3176 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3177 bfd_vma glink_pltresolve;
3178
3b36f7e6
AM
3179 /* Size of reserved GOT entries. */
3180 unsigned int got_header_size;
3181 /* Non-zero if allocating the header left a gap. */
3182 unsigned int got_gap;
3183
4a3dc543
RS
3184 /* The type of PLT we have chosen to use. */
3185 enum ppc_elf_plt_type plt_type;
3186
9d8504b1 3187 /* True if the target system is VxWorks. */
016687f8 3188 unsigned int is_vxworks:1;
9d8504b1
PB
3189
3190 /* The size of PLT entries. */
3191 int plt_entry_size;
3192 /* The distance between adjacent PLT slots. */
3193 int plt_slot_size;
3194 /* The size of the first PLT entry. */
3195 int plt_initial_entry_size;
016687f8 3196
87d72d41
AM
3197 /* Small local sym cache. */
3198 struct sym_cache sym_cache;
25dbc73a 3199};
252b5132 3200
94caa966
AM
3201/* Rename some of the generic section flags to better document how they
3202 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3203
3204/* Nonzero if this section has TLS related relocations. */
3205#define has_tls_reloc sec_flg0
3206
3207/* Nonzero if this section has a call to __tls_get_addr. */
3208#define has_tls_get_addr_call sec_flg1
3209
25dbc73a 3210/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3211
25dbc73a 3212#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3213 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3214 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3215
25dbc73a 3216/* Create an entry in a PPC ELF linker hash table. */
252b5132 3217
25dbc73a
AM
3218static struct bfd_hash_entry *
3219ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3220 struct bfd_hash_table *table,
3221 const char *string)
252b5132 3222{
25dbc73a
AM
3223 /* Allocate the structure if it has not already been allocated by a
3224 subclass. */
3225 if (entry == NULL)
3226 {
3227 entry = bfd_hash_allocate (table,
3228 sizeof (struct ppc_elf_link_hash_entry));
3229 if (entry == NULL)
3230 return entry;
3231 }
252b5132 3232
25dbc73a
AM
3233 /* Call the allocation method of the superclass. */
3234 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3235 if (entry != NULL)
3236 {
3237 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3238 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3239 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3240 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3241 }
252b5132 3242
25dbc73a 3243 return entry;
252b5132 3244}
3dab13f6 3245
25dbc73a 3246/* Create a PPC ELF linker hash table. */
3dab13f6 3247
25dbc73a
AM
3248static struct bfd_link_hash_table *
3249ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3250{
25dbc73a 3251 struct ppc_elf_link_hash_table *ret;
db434ba0 3252 static struct ppc_elf_params default_params = { PLT_OLD, 0, 1, 0, 0, 4096 };
3dab13f6 3253
25dbc73a
AM
3254 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3255 if (ret == NULL)
3256 return NULL;
3dab13f6 3257
66eb6687
AM
3258 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3259 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3260 sizeof (struct ppc_elf_link_hash_entry),
3261 PPC32_ELF_DATA))
3dab13f6 3262 {
25dbc73a
AM
3263 free (ret);
3264 return NULL;
3265 }
58111eb7 3266
a6aa5195
AM
3267 ret->elf.init_plt_refcount.refcount = 0;
3268 ret->elf.init_plt_refcount.glist = NULL;
3269 ret->elf.init_plt_offset.offset = 0;
3270 ret->elf.init_plt_offset.glist = NULL;
3271
db434ba0
AM
3272 ret->params = &default_params;
3273
c9a2f333
AM
3274 ret->sdata[0].name = ".sdata";
3275 ret->sdata[0].sym_name = "_SDA_BASE_";
3276 ret->sdata[0].bss_name = ".sbss";
3277
3278 ret->sdata[1].name = ".sdata2";
3279 ret->sdata[1].sym_name = "_SDA2_BASE_";
3280 ret->sdata[1].bss_name = ".sbss2";
3281
9d8504b1
PB
3282 ret->plt_entry_size = 12;
3283 ret->plt_slot_size = 8;
3284 ret->plt_initial_entry_size = 72;
9d8504b1 3285
25dbc73a
AM
3286 return &ret->elf.root;
3287}
3dab13f6 3288
5446cbdf
AM
3289/* Hook linker params into hash table. */
3290
3291void
3292ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3293{
3294 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3295
3296 if (htab)
3297 htab->params = params;
3298}
3299
9d8504b1 3300/* Create .got and the related sections. */
3dab13f6 3301
25dbc73a
AM
3302static bfd_boolean
3303ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3304{
3305 struct ppc_elf_link_hash_table *htab;
3306 asection *s;
3307 flagword flags;
3dab13f6 3308
25dbc73a
AM
3309 if (!_bfd_elf_create_got_section (abfd, info))
3310 return FALSE;
3dab13f6 3311
25dbc73a 3312 htab = ppc_elf_hash_table (info);
3d4d4302 3313 htab->got = s = bfd_get_linker_section (abfd, ".got");
25dbc73a
AM
3314 if (s == NULL)
3315 abort ();
3dab13f6 3316
9d8504b1
PB
3317 if (htab->is_vxworks)
3318 {
3d4d4302 3319 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
9d8504b1
PB
3320 if (!htab->sgotplt)
3321 abort ();
3322 }
3323 else
3324 {
3325 /* The powerpc .got has a blrl instruction in it. Mark it
3326 executable. */
3327 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3328 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3329 if (!bfd_set_section_flags (abfd, s, flags))
3330 return FALSE;
3331 }
3dab13f6 3332
3d4d4302 3333 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
64e77c6d
L
3334 if (!htab->relgot)
3335 abort ();
3dab13f6 3336
25dbc73a
AM
3337 return TRUE;
3338}
3dab13f6 3339
e054468f
AM
3340static bfd_boolean
3341ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3342{
3343 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3344 asection *s;
3345 flagword flags;
3346
3347 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3348 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3349 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3350 htab->glink = s;
3351 if (s == NULL
5446cbdf
AM
3352 || !bfd_set_section_alignment (abfd, s,
3353 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3354 return FALSE;
3355
6177242a
AM
3356 if (!info->no_ld_generated_unwind_info)
3357 {
3358 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3359 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3360 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3361 htab->glink_eh_frame = s;
3362 if (s == NULL
3363 || !bfd_set_section_alignment (abfd, s, 2))
3364 return FALSE;
3365 }
3366
e054468f
AM
3367 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3368 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3369 htab->iplt = s;
3370 if (s == NULL
3371 || !bfd_set_section_alignment (abfd, s, 4))
3372 return FALSE;
3373
3374 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3375 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3376 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
e054468f
AM
3377 htab->reliplt = s;
3378 if (s == NULL
3379 || ! bfd_set_section_alignment (abfd, s, 2))
3380 return FALSE;
3381 return TRUE;
3382}
3383
25dbc73a
AM
3384/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3385 to output sections (just like _bfd_elf_create_dynamic_sections has
3386 to create .dynbss and .rela.bss). */
3dab13f6 3387
25dbc73a
AM
3388static bfd_boolean
3389ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3390{
3391 struct ppc_elf_link_hash_table *htab;
3392 asection *s;
3393 flagword flags;
3dab13f6 3394
25dbc73a 3395 htab = ppc_elf_hash_table (info);
3dab13f6 3396
25dbc73a
AM
3397 if (htab->got == NULL
3398 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3399 return FALSE;
3400
25dbc73a
AM
3401 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3402 return FALSE;
3dab13f6 3403
e054468f
AM
3404 if (htab->glink == NULL
3405 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3406 return FALSE;
3dab13f6 3407
3d4d4302 3408 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
14b2f831
AM
3409 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3410 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3411 htab->dynsbss = s;
3496cb2a 3412 if (s == NULL)
25dbc73a 3413 return FALSE;
3dab13f6 3414
25dbc73a
AM
3415 if (! info->shared)
3416 {
3d4d4302 3417 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
e054468f
AM
3418 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3419 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3420 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3421 htab->relsbss = s;
25dbc73a 3422 if (s == NULL
25dbc73a
AM
3423 || ! bfd_set_section_alignment (abfd, s, 2))
3424 return FALSE;
3425 }
3dab13f6 3426
711de32c
RS
3427 if (htab->is_vxworks
3428 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3429 return FALSE;
9d8504b1 3430
3d4d4302
AM
3431 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3432 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
25dbc73a
AM
3433 if (s == NULL)
3434 abort ();
3dab13f6 3435
3b36f7e6 3436 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3437 if (htab->plt_type == PLT_VXWORKS)
3438 /* The VxWorks PLT is a loaded section with contents. */
3439 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3440 return bfd_set_section_flags (abfd, s, flags);
3441}
3dab13f6 3442
25dbc73a 3443/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3444
25dbc73a 3445static void
fcfa13d2 3446ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3447 struct elf_link_hash_entry *dir,
3448 struct elf_link_hash_entry *ind)
3449{
3450 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3451
25dbc73a
AM
3452 edir = (struct ppc_elf_link_hash_entry *) dir;
3453 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3454
c79d6685
AM
3455 edir->tls_mask |= eind->tls_mask;
3456 edir->has_sda_refs |= eind->has_sda_refs;
3457
3458 /* If called to transfer flags for a weakdef during processing
3459 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3460 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3461 if (!(ELIMINATE_COPY_RELOCS
3462 && eind->elf.root.type != bfd_link_hash_indirect
3463 && edir->elf.dynamic_adjusted))
3464 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3465
3466 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3467 edir->elf.ref_regular |= eind->elf.ref_regular;
3468 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3469 edir->elf.needs_plt |= eind->elf.needs_plt;
3470 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3471
25dbc73a
AM
3472 if (eind->dyn_relocs != NULL)
3473 {
3474 if (edir->dyn_relocs != NULL)
3dab13f6 3475 {
6061a67d
AM
3476 struct elf_dyn_relocs **pp;
3477 struct elf_dyn_relocs *p;
3dab13f6 3478
fcfa13d2 3479 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3480 list. Merge any entries against the same section. */
3481 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3482 {
6061a67d 3483 struct elf_dyn_relocs *q;
25dbc73a
AM
3484
3485 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3486 if (q->sec == p->sec)
3487 {
3488 q->pc_count += p->pc_count;
3489 q->count += p->count;
3490 *pp = p->next;
3491 break;
3492 }
3493 if (q == NULL)
3494 pp = &p->next;
3dab13f6 3495 }
25dbc73a 3496 *pp = edir->dyn_relocs;
3dab13f6 3497 }
25dbc73a
AM
3498
3499 edir->dyn_relocs = eind->dyn_relocs;
3500 eind->dyn_relocs = NULL;
3dab13f6 3501 }
3dab13f6 3502
68ba6d40
AM
3503 /* If we were called to copy over info for a weak sym, that's all.
3504 You might think dyn_relocs need not be copied over; After all,
3505 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3506 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3507 code in ppc_elf_adjust_dynamic_symbol needs to check for
3508 dyn_relocs in read-only sections, and it does so on what is the
3509 DIR sym here. */
3510 if (eind->elf.root.type != bfd_link_hash_indirect)
3511 return;
3512
a6aa5195
AM
3513 /* Copy over the GOT refcount entries that we may have already seen to
3514 the symbol which just became indirect. */
fcfa13d2
AM
3515 edir->elf.got.refcount += eind->elf.got.refcount;
3516 eind->elf.got.refcount = 0;
a6aa5195
AM
3517
3518 /* And plt entries. */
3519 if (eind->elf.plt.plist != NULL)
3520 {
3521 if (edir->elf.plt.plist != NULL)
3522 {
3523 struct plt_entry **entp;
3524 struct plt_entry *ent;
3525
3526 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3527 {
3528 struct plt_entry *dent;
3529
3530 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3531 if (dent->sec == ent->sec && dent->addend == ent->addend)
3532 {
3533 dent->plt.refcount += ent->plt.refcount;
3534 *entp = ent->next;
3535 break;
3536 }
3537 if (dent == NULL)
3538 entp = &ent->next;
3539 }
3540 *entp = edir->elf.plt.plist;
3541 }
3542
3543 edir->elf.plt.plist = eind->elf.plt.plist;
3544 eind->elf.plt.plist = NULL;
3545 }
3546
fcfa13d2 3547 if (eind->elf.dynindx != -1)
25dbc73a 3548 {
fcfa13d2
AM
3549 if (edir->elf.dynindx != -1)
3550 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3551 edir->elf.dynstr_index);
a6aa5195
AM
3552 edir->elf.dynindx = eind->elf.dynindx;
3553 edir->elf.dynstr_index = eind->elf.dynstr_index;
3554 eind->elf.dynindx = -1;
3555 eind->elf.dynstr_index = 0;
25dbc73a 3556 }
25dbc73a 3557}
3dab13f6 3558
25dbc73a
AM
3559/* Hook called by the linker routine which adds symbols from an object
3560 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3561
25dbc73a
AM
3562static bfd_boolean
3563ppc_elf_add_symbol_hook (bfd *abfd,
3564 struct bfd_link_info *info,
3565 Elf_Internal_Sym *sym,
3566 const char **namep ATTRIBUTE_UNUSED,
3567 flagword *flagsp ATTRIBUTE_UNUSED,
3568 asection **secp,
3569 bfd_vma *valp)
3570{
3571 if (sym->st_shndx == SHN_COMMON
3572 && !info->relocatable
0c8d6e5c
AM
3573 && is_ppc_elf (info->output_bfd)
3574 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3575 {
3576 /* Common symbols less than or equal to -G nn bytes are automatically
3577 put into .sbss. */
3578 struct ppc_elf_link_hash_table *htab;
3dab13f6 3579
25dbc73a
AM
3580 htab = ppc_elf_hash_table (info);
3581 if (htab->sbss == NULL)
3582 {
644285ef 3583 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3584
644285ef
AM
3585 if (!htab->elf.dynobj)
3586 htab->elf.dynobj = abfd;
3587
3496cb2a
L
3588 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3589 ".sbss",
3590 flags);
3591 if (htab->sbss == NULL)
25dbc73a 3592 return FALSE;
3dab13f6 3593 }
3dab13f6 3594
25dbc73a
AM
3595 *secp = htab->sbss;
3596 *valp = sym->st_size;
3597 }
3dab13f6 3598
c16153ae 3599 if ((abfd->flags & DYNAMIC) == 0
f64b2e8d
NC
3600 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3601 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3602 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
e054468f 3603
25dbc73a 3604 return TRUE;
3dab13f6
AM
3605}
3606\f
046183de 3607static bfd_boolean
bd6c6e2b 3608create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
046183de 3609{
bd6c6e2b
AM
3610 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3611
046183de
AM
3612 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3613 TRUE, FALSE, TRUE);
3614 if (lsect->sym == NULL)
3615 return FALSE;
3616 if (lsect->sym->root.type == bfd_link_hash_new)
3617 lsect->sym->non_elf = 0;
3618 lsect->sym->ref_regular = 1;
bd6c6e2b 3619 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
046183de
AM
3620 return TRUE;
3621}
3622
c9a2f333 3623/* Create a special linker section. */
25dbc73a 3624
c9a2f333 3625static bfd_boolean
55fd94b0
AM
3626ppc_elf_create_linker_section (bfd *abfd,
3627 struct bfd_link_info *info,
c9a2f333
AM
3628 flagword flags,
3629 elf_linker_section_t *lsect)
252b5132 3630{
58111eb7 3631 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 3632 asection *s;
58111eb7 3633
c9a2f333
AM
3634 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3635 | SEC_LINKER_CREATED);
58111eb7
AM
3636
3637 /* Record the first bfd that needs the special sections. */
3638 if (!htab->elf.dynobj)
3639 htab->elf.dynobj = abfd;
3640
3496cb2a
L
3641 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3642 lsect->name,
3643 flags);
76750a2f 3644 if (s == NULL
76750a2f 3645 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 3646 return FALSE;
76750a2f 3647 lsect->section = s;
58111eb7 3648
bd6c6e2b 3649 return create_sdata_sym (info, lsect);
252b5132 3650}
252b5132 3651
25dbc73a
AM
3652/* Find a linker generated pointer with a given addend and type. */
3653
3654static elf_linker_section_pointers_t *
3655elf_find_pointer_linker_section
3656 (elf_linker_section_pointers_t *linker_pointers,
3657 bfd_vma addend,
3658 elf_linker_section_t *lsect)
252b5132 3659{
25dbc73a
AM
3660 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3661 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3662 return linker_pointers;
252b5132 3663
25dbc73a
AM
3664 return NULL;
3665}
3666
3667/* Allocate a pointer to live in a linker created section. */
3668
3669static bfd_boolean
3670elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM
3671 elf_linker_section_t *lsect,
3672 struct elf_link_hash_entry *h,
3673 const Elf_Internal_Rela *rel)
3674{
3675 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3676 elf_linker_section_pointers_t *linker_section_ptr;
3677 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3678 bfd_size_type amt;
3679
3680 BFD_ASSERT (lsect != NULL);
3681
3682 /* Is this a global symbol? */
3683 if (h != NULL)
3684 {
3685 struct ppc_elf_link_hash_entry *eh;
3686
3687 /* Has this symbol already been allocated? If so, our work is done. */
3688 eh = (struct ppc_elf_link_hash_entry *) h;
3689 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3690 rel->r_addend,
3691 lsect))
3692 return TRUE;
3693
3694 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3695 }
3696 else
3697 {
0c8d6e5c 3698 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3699
25dbc73a
AM
3700 /* Allocation of a pointer to a local symbol. */
3701 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3702
3703 /* Allocate a table to hold the local symbols if first time. */
3704 if (!ptr)
3705 {
0ffa91dd 3706 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3707
3708 amt = num_symbols;
3709 amt *= sizeof (elf_linker_section_pointers_t *);
3710 ptr = bfd_zalloc (abfd, amt);
3711
3712 if (!ptr)
3713 return FALSE;
3714
3715 elf_local_ptr_offsets (abfd) = ptr;
3716 }
3717
3718 /* Has this symbol already been allocated? If so, our work is done. */
3719 if (elf_find_pointer_linker_section (ptr[r_symndx],
3720 rel->r_addend,
3721 lsect))
3722 return TRUE;
252b5132 3723
25dbc73a 3724 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3725 }
41fcb14e 3726
25dbc73a
AM
3727 /* Allocate space for a pointer in the linker section, and allocate
3728 a new pointer record from internal memory. */
3729 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3730 amt = sizeof (elf_linker_section_pointers_t);
3731 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3732
25dbc73a 3733 if (!linker_section_ptr)
7619e7c7 3734 return FALSE;
41fcb14e 3735
25dbc73a
AM
3736 linker_section_ptr->next = *ptr_linker_section_ptr;
3737 linker_section_ptr->addend = rel->r_addend;
3738 linker_section_ptr->lsect = lsect;
25dbc73a 3739 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3740
25dbc73a
AM
3741 linker_section_ptr->offset = lsect->section->size;
3742 lsect->section->size += 4;
7619e7c7 3743
25dbc73a
AM
3744#ifdef DEBUG
3745 fprintf (stderr,
3746 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3747 lsect->name, (long) linker_section_ptr->offset,
3748 (long) lsect->section->size);
3749#endif
7619e7c7
AM
3750
3751 return TRUE;
41fcb14e
AM
3752}
3753
e054468f 3754static struct plt_entry **
25dbc73a
AM
3755update_local_sym_info (bfd *abfd,
3756 Elf_Internal_Shdr *symtab_hdr,
3757 unsigned long r_symndx,
3758 int tls_type)
252b5132 3759{
25dbc73a 3760 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3761 struct plt_entry **local_plt;
25dbc73a 3762 char *local_got_tls_masks;
252b5132 3763
25dbc73a 3764 if (local_got_refcounts == NULL)
252b5132 3765 {
25dbc73a
AM
3766 bfd_size_type size = symtab_hdr->sh_info;
3767
e054468f
AM
3768 size *= (sizeof (*local_got_refcounts)
3769 + sizeof (*local_plt)
3770 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3771 local_got_refcounts = bfd_zalloc (abfd, size);
3772 if (local_got_refcounts == NULL)
e054468f 3773 return NULL;
25dbc73a 3774 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3775 }
41fcb14e 3776
e054468f
AM
3777 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3778 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3779 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3780 if (tls_type != PLT_IFUNC)
3781 local_got_refcounts[r_symndx] += 1;
3782 return local_plt + r_symndx;
25dbc73a 3783}
41fcb14e 3784
a6aa5195 3785static bfd_boolean
3ec01793 3786update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3787 asection *sec, bfd_vma addend)
3788{
3789 struct plt_entry *ent;
3790
32af9f6e
AM
3791 if (addend < 32768)
3792 sec = NULL;
3ec01793 3793 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3794 if (ent->sec == sec && ent->addend == addend)
3795 break;
3796 if (ent == NULL)
3797 {
3798 bfd_size_type amt = sizeof (*ent);
3799 ent = bfd_alloc (abfd, amt);
3800 if (ent == NULL)
3801 return FALSE;
3ec01793 3802 ent->next = *plist;
a6aa5195
AM
3803 ent->sec = sec;
3804 ent->addend = addend;
3805 ent->plt.refcount = 0;
3ec01793 3806 *plist = ent;
a6aa5195
AM
3807 }
3808 ent->plt.refcount += 1;
3809 return TRUE;
3810}
3811
3812static struct plt_entry *
3ec01793 3813find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3814{
3815 struct plt_entry *ent;
3816
3817 if (addend < 32768)
3818 sec = NULL;
3ec01793 3819 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3820 if (ent->sec == sec && ent->addend == addend)
3821 break;
3822 return ent;
3823}
3824
e054468f
AM
3825static bfd_boolean
3826is_branch_reloc (enum elf_ppc_reloc_type r_type)
3827{
3828 return (r_type == R_PPC_PLTREL24
3829 || r_type == R_PPC_LOCAL24PC
3830 || r_type == R_PPC_REL24
3831 || r_type == R_PPC_REL14
3832 || r_type == R_PPC_REL14_BRTAKEN
3833 || r_type == R_PPC_REL14_BRNTAKEN
3834 || r_type == R_PPC_ADDR24
3835 || r_type == R_PPC_ADDR14
3836 || r_type == R_PPC_ADDR14_BRTAKEN
3837 || r_type == R_PPC_ADDR14_BRNTAKEN);
3838}
3839
25dbc73a
AM
3840static void
3841bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3842{
3843 (*_bfd_error_handler)
3844 (_("%B: relocation %s cannot be used when making a shared object"),
3845 abfd,
3846 ppc_elf_howto_table[r_type]->name);
3847 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3848}
3849
25dbc73a
AM
3850/* Look through the relocs for a section during the first phase, and
3851 allocate space in the global offset table or procedure linkage
3852 table. */
252b5132 3853
b34976b6 3854static bfd_boolean
25dbc73a
AM
3855ppc_elf_check_relocs (bfd *abfd,
3856 struct bfd_link_info *info,
3857 asection *sec,
3858 const Elf_Internal_Rela *relocs)
252b5132 3859{
7619e7c7 3860 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3861 Elf_Internal_Shdr *symtab_hdr;
3862 struct elf_link_hash_entry **sym_hashes;
3863 const Elf_Internal_Rela *rel;
3864 const Elf_Internal_Rela *rel_end;
a6aa5195 3865 asection *got2, *sreloc;
727fc41e 3866 struct elf_link_hash_entry *tga;
25dbc73a
AM
3867
3868 if (info->relocatable)
3869 return TRUE;
252b5132 3870
c87b5a93
AM
3871 /* Don't do anything special with non-loaded, non-alloced sections.
3872 In particular, any relocs in such sections should not affect GOT
3873 and PLT reference counting (ie. we don't allow them to create GOT
3874 or PLT entries), there's no possibility or desire to optimize TLS
3875 relocs, and there's not much point in propagating relocs to shared
3876 libs that the dynamic linker won't relocate. */
3877 if ((sec->flags & SEC_ALLOC) == 0)
3878 return TRUE;
3879
252b5132 3880#ifdef DEBUG
25dbc73a
AM
3881 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3882 sec, abfd);
252b5132
RH
3883#endif
3884
0c8d6e5c 3885 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3886
25dbc73a
AM
3887 /* Initialize howto table if not already done. */
3888 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3889 ppc_elf_howto_init ();
3890
7619e7c7 3891 htab = ppc_elf_hash_table (info);
25f23106
AM
3892 if (htab->glink == NULL)
3893 {
3894 if (htab->elf.dynobj == NULL)
3895 htab->elf.dynobj = abfd;
3896 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3897 return FALSE;
3898 }
727fc41e
AM
3899 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3900 FALSE, FALSE, TRUE);
0ffa91dd 3901 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3902 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3903 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3904 sreloc = NULL;
3905
3906 rel_end = relocs + sec->reloc_count;
3907 for (rel = relocs; rel < rel_end; rel++)
3908 {
3909 unsigned long r_symndx;
3910 enum elf_ppc_reloc_type r_type;
3911 struct elf_link_hash_entry *h;
727fc41e 3912 int tls_type;
25dbc73a
AM
3913
3914 r_symndx = ELF32_R_SYM (rel->r_info);
3915 if (r_symndx < symtab_hdr->sh_info)
3916 h = NULL;
3917 else
973a3492
L
3918 {
3919 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3920 while (h->root.type == bfd_link_hash_indirect
3921 || h->root.type == bfd_link_hash_warning)
3922 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
3923
3924 /* PR15323, ref flags aren't set for references in the same
3925 object. */
3926 h->root.non_ir_ref = 1;
973a3492 3927 }
25dbc73a
AM
3928
3929 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3930 This shows up in particular in an R_PPC_ADDR32 in the eabi
3931 startup code. */
3b36f7e6
AM
3932 if (h != NULL
3933 && htab->got == NULL
3934 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3935 {
3b36f7e6
AM
3936 if (htab->elf.dynobj == NULL)
3937 htab->elf.dynobj = abfd;
3938 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3939 return FALSE;
3940 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3941 }
252b5132 3942
727fc41e 3943 tls_type = 0;
de972ffa 3944 r_type = ELF32_R_TYPE (rel->r_info);
06a162cf 3945 if (h == NULL && !htab->is_vxworks)
e054468f 3946 {
06a162cf
AM
3947 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3948 abfd, r_symndx);
3949 if (isym == NULL)
3950 return FALSE;
3951
0bed072f 3952 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 3953 {
06a162cf 3954 struct plt_entry **ifunc;
06a162cf 3955
0bed072f 3956 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
3957 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3958 PLT_IFUNC);
3959 if (ifunc == NULL)
e054468f
AM
3960 return FALSE;
3961
06a162cf
AM
3962 /* STT_GNU_IFUNC symbols must have a PLT entry;
3963 In a non-pie executable even when there are
3964 no plt calls. */
0bed072f
AM
3965 if (!info->shared
3966 || is_branch_reloc (r_type))
e054468f 3967 {
0bed072f
AM
3968 bfd_vma addend = 0;
3969 if (r_type == R_PPC_PLTREL24)
3970 {
3971 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3972 if (info->shared)
3973 addend = rel->r_addend;
3974 }
3975 if (!update_plt_info (abfd, ifunc, got2, addend))
3976 return FALSE;
e054468f
AM
3977 }
3978 }
25f23106
AM
3979 }
3980
de972ffa
AM
3981 if (!htab->is_vxworks
3982 && is_branch_reloc (r_type)
3983 && h != NULL
3984 && h == tga)
25f23106 3985 {
de972ffa
AM
3986 if (rel != relocs
3987 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3988 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3989 /* We have a new-style __tls_get_addr call with a marker
3990 reloc. */
3991 ;
3992 else
3993 /* Mark this section as having an old-style call. */
3994 sec->has_tls_get_addr_call = 1;
e054468f 3995 }
727fc41e 3996
25dbc73a
AM
3997 switch (r_type)
3998 {
727fc41e
AM
3999 case R_PPC_TLSGD:
4000 case R_PPC_TLSLD:
4001 /* These special tls relocs tie a call to __tls_get_addr with
4002 its parameter symbol. */
4003 break;
4004
25dbc73a
AM
4005 case R_PPC_GOT_TLSLD16:
4006 case R_PPC_GOT_TLSLD16_LO:
4007 case R_PPC_GOT_TLSLD16_HI:
4008 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4009 tls_type = TLS_TLS | TLS_LD;
4010 goto dogottls;
252b5132 4011
25dbc73a
AM
4012 case R_PPC_GOT_TLSGD16:
4013 case R_PPC_GOT_TLSGD16_LO:
4014 case R_PPC_GOT_TLSGD16_HI:
4015 case R_PPC_GOT_TLSGD16_HA:
4016 tls_type = TLS_TLS | TLS_GD;
4017 goto dogottls;
4018
4019 case R_PPC_GOT_TPREL16:
4020 case R_PPC_GOT_TPREL16_LO:
4021 case R_PPC_GOT_TPREL16_HI:
4022 case R_PPC_GOT_TPREL16_HA:
1d483afe 4023 if (!info->executable)
25dbc73a
AM
4024 info->flags |= DF_STATIC_TLS;
4025 tls_type = TLS_TLS | TLS_TPREL;
4026 goto dogottls;
4027
4028 case R_PPC_GOT_DTPREL16:
4029 case R_PPC_GOT_DTPREL16_LO:
4030 case R_PPC_GOT_DTPREL16_HI:
4031 case R_PPC_GOT_DTPREL16_HA:
4032 tls_type = TLS_TLS | TLS_DTPREL;
4033 dogottls:
4034 sec->has_tls_reloc = 1;
4035 /* Fall thru */
252b5132 4036
25dbc73a
AM
4037 /* GOT16 relocations */
4038 case R_PPC_GOT16:
4039 case R_PPC_GOT16_LO:
4040 case R_PPC_GOT16_HI:
4041 case R_PPC_GOT16_HA:
4042 /* This symbol requires a global offset table entry. */
4043 if (htab->got == NULL)
4044 {
4045 if (htab->elf.dynobj == NULL)
4046 htab->elf.dynobj = abfd;
4047 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4048 return FALSE;
4049 }
4050 if (h != NULL)
4051 {
4052 h->got.refcount += 1;
4053 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4054 }
4055 else
4056 /* This is a global offset table entry for a local symbol. */
4057 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4058 return FALSE;
91e21fb7
AM
4059
4060 /* We may also need a plt entry if the symbol turns out to be
4061 an ifunc. */
4062 if (h != NULL && !info->shared)
4063 {
4064 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4065 return FALSE;
4066 }
25dbc73a 4067 break;
252b5132 4068
25dbc73a
AM
4069 /* Indirect .sdata relocation. */
4070 case R_PPC_EMB_SDAI16:
4071 if (info->shared)
4072 {
4073 bad_shared_reloc (abfd, r_type);
4074 return FALSE;
4075 }
c9a2f333
AM
4076 if (htab->sdata[0].section == NULL
4077 && !ppc_elf_create_linker_section (abfd, info, 0,
4078 &htab->sdata[0]))
4079 return FALSE;
76750a2f
AM
4080 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4081 h, rel))
25dbc73a 4082 return FALSE;
046183de
AM
4083 if (h != NULL)
4084 {
4085 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4086 h->non_got_ref = TRUE;
4087 }
25dbc73a 4088 break;
252b5132 4089
25dbc73a
AM
4090 /* Indirect .sdata2 relocation. */
4091 case R_PPC_EMB_SDA2I16:
4092 if (info->shared)
4093 {
4094 bad_shared_reloc (abfd, r_type);
4095 return FALSE;
4096 }
c9a2f333
AM
4097 if (htab->sdata[1].section == NULL
4098 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4099 &htab->sdata[1]))
4100 return FALSE;
76750a2f
AM
4101 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4102 h, rel))
25dbc73a 4103 return FALSE;
046183de
AM
4104 if (h != NULL)
4105 {
4106 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4107 h->non_got_ref = TRUE;
4108 }
25dbc73a 4109 break;
252b5132 4110
b9c361e0
JL
4111 case R_PPC_VLE_SDAREL_LO16A:
4112 case R_PPC_VLE_SDAREL_LO16D:
4113 case R_PPC_VLE_SDAREL_HI16A:
4114 case R_PPC_VLE_SDAREL_HI16D:
4115 case R_PPC_VLE_SDAREL_HA16A:
4116 case R_PPC_VLE_SDAREL_HA16D:
25dbc73a 4117 case R_PPC_SDAREL16:
046183de 4118 if (htab->sdata[0].sym == NULL
bd6c6e2b 4119 && !create_sdata_sym (info, &htab->sdata[0]))
046183de 4120 return FALSE;
b9c361e0
JL
4121
4122 if (htab->sdata[1].sym == NULL
4123 && !create_sdata_sym (info, &htab->sdata[1]))
4124 return FALSE;
4125
046183de
AM
4126 if (h != NULL)
4127 {
4128 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4129 h->non_got_ref = TRUE;
4130 }
4131 break;
4132
b9c361e0
JL
4133 case R_PPC_VLE_REL8:
4134 case R_PPC_VLE_REL15:
4135 case R_PPC_VLE_REL24:
4136 case R_PPC_VLE_LO16A:
4137 case R_PPC_VLE_LO16D:
4138 case R_PPC_VLE_HI16A:
4139 case R_PPC_VLE_HI16D:
4140 case R_PPC_VLE_HA16A:
4141 case R_PPC_VLE_HA16D:
4142 break;
4143
25dbc73a 4144 case R_PPC_EMB_SDA2REL:
046183de
AM
4145 if (info->shared)
4146 {
4147 bad_shared_reloc (abfd, r_type);
4148 return FALSE;
4149 }
4150 if (htab->sdata[1].sym == NULL
bd6c6e2b 4151 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM
4152 return FALSE;
4153 if (h != NULL)
4154 {
4155 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4156 h->non_got_ref = TRUE;
4157 }
4158 break;
4159
b9c361e0
JL
4160 case R_PPC_VLE_SDA21_LO:
4161 case R_PPC_VLE_SDA21:
25dbc73a
AM
4162 case R_PPC_EMB_SDA21:
4163 case R_PPC_EMB_RELSDA:
046183de
AM
4164 if (info->shared)
4165 {
4166 bad_shared_reloc (abfd, r_type);
4167 return FALSE;
4168 }
4169 if (htab->sdata[0].sym == NULL
bd6c6e2b 4170 && !create_sdata_sym (info, &htab->sdata[0]))
046183de
AM
4171 return FALSE;
4172 if (htab->sdata[1].sym == NULL
bd6c6e2b 4173 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM
4174 return FALSE;
4175 if (h != NULL)
4176 {
4177 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4178 h->non_got_ref = TRUE;
4179 }
4180 break;
4181
25dbc73a
AM
4182 case R_PPC_EMB_NADDR32:
4183 case R_PPC_EMB_NADDR16:
4184 case R_PPC_EMB_NADDR16_LO:
4185 case R_PPC_EMB_NADDR16_HI:
4186 case R_PPC_EMB_NADDR16_HA:
4187 if (info->shared)
4188 {
4189 bad_shared_reloc (abfd, r_type);
4190 return FALSE;
4191 }
4dc4a9a5 4192 if (h != NULL)
046183de 4193 h->non_got_ref = TRUE;
25dbc73a 4194 break;
252b5132 4195
25dbc73a 4196 case R_PPC_PLTREL24:
de972ffa 4197 if (h == NULL)
6d78d0b9
AM
4198 break;
4199 /* Fall through */
4200 case R_PPC_PLT32:
25dbc73a
AM
4201 case R_PPC_PLTREL32:
4202 case R_PPC_PLT16_LO:
4203 case R_PPC_PLT16_HI:
4204 case R_PPC_PLT16_HA:
4205#ifdef DEBUG
4206 fprintf (stderr, "Reloc requires a PLT entry\n");
4207#endif
4208 /* This symbol requires a procedure linkage table entry. We
4209 actually build the entry in finish_dynamic_symbol,
4210 because this might be a case of linking PIC code without
4211 linking in any dynamic objects, in which case we don't
4212 need to generate a procedure linkage table after all. */
7619e7c7 4213
25dbc73a
AM
4214 if (h == NULL)
4215 {
4216 /* It does not make sense to have a procedure linkage
4217 table entry for a local symbol. */
8de848d8 4218 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
25f53a85
AM
4219 abfd, sec, rel->r_offset,
4220 ppc_elf_howto_table[r_type]->name);
25dbc73a
AM
4221 bfd_set_error (bfd_error_bad_value);
4222 return FALSE;
4223 }
a6aa5195
AM
4224 else
4225 {
016687f8 4226 bfd_vma addend = 0;
ee05f2fe 4227
016687f8
AM
4228 if (r_type == R_PPC_PLTREL24)
4229 {
4230 ppc_elf_tdata (abfd)->makes_plt_call = 1;
a877a2b6
AM
4231 if (info->shared)
4232 addend = rel->r_addend;
016687f8 4233 }
a6aa5195 4234 h->needs_plt = 1;
32af9f6e 4235 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4236 return FALSE;
4237 }
25dbc73a 4238 break;
ee05f2fe 4239
25dbc73a
AM
4240 /* The following relocations don't need to propagate the
4241 relocation if linking a shared object since they are
4242 section relative. */
4243 case R_PPC_SECTOFF:
4244 case R_PPC_SECTOFF_LO:
4245 case R_PPC_SECTOFF_HI:
4246 case R_PPC_SECTOFF_HA:
4247 case R_PPC_DTPREL16:
4248 case R_PPC_DTPREL16_LO:
4249 case R_PPC_DTPREL16_HI:
4250 case R_PPC_DTPREL16_HA:
4251 case R_PPC_TOC16:
4252 break;
252b5132 4253
d7128ce4
AM
4254 case R_PPC_REL16:
4255 case R_PPC_REL16_LO:
4256 case R_PPC_REL16_HI:
4257 case R_PPC_REL16_HA:
016687f8 4258 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4259 break;
4260
a6aa5195 4261 /* These are just markers. */
25dbc73a
AM
4262 case R_PPC_TLS:
4263 case R_PPC_EMB_MRKREF:
4264 case R_PPC_NONE:
4265 case R_PPC_max:
32af9f6e
AM
4266 case R_PPC_RELAX:
4267 case R_PPC_RELAX_PLT:
4268 case R_PPC_RELAX_PLTREL24:
25dbc73a 4269 break;
252b5132 4270
25dbc73a
AM
4271 /* These should only appear in dynamic objects. */
4272 case R_PPC_COPY:
4273 case R_PPC_GLOB_DAT:
4274 case R_PPC_JMP_SLOT:
4275 case R_PPC_RELATIVE:
e054468f 4276 case R_PPC_IRELATIVE:
25dbc73a 4277 break;
252b5132 4278
25dbc73a
AM
4279 /* These aren't handled yet. We'll report an error later. */
4280 case R_PPC_ADDR30:
4281 case R_PPC_EMB_RELSEC16:
4282 case R_PPC_EMB_RELST_LO:
4283 case R_PPC_EMB_RELST_HI:
4284 case R_PPC_EMB_RELST_HA:
4285 case R_PPC_EMB_BIT_FLD:
4286 break;
252b5132 4287
25dbc73a
AM
4288 /* This refers only to functions defined in the shared library. */
4289 case R_PPC_LOCAL24PC:
727fc41e 4290 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4291 {
4292 htab->plt_type = PLT_OLD;
4293 htab->old_bfd = abfd;
4294 }
c7e17e05
AM
4295 if (h != NULL && h->type == STT_GNU_IFUNC)
4296 {
4297 if (info->shared)
4298 {
4299 info->callbacks->einfo (_("%P: %H: @local call to ifunc %s\n"),
4300 abfd, sec, rel->r_offset,
4301 h->root.root.string);
4302 bfd_set_error (bfd_error_bad_value);
4303 return FALSE;
4304 }
4305 h->needs_plt = 1;
4306 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4307 return FALSE;
4308 }
25dbc73a 4309 break;
252b5132 4310
25dbc73a
AM
4311 /* This relocation describes the C++ object vtable hierarchy.
4312 Reconstruct it for later use during GC. */
4313 case R_PPC_GNU_VTINHERIT:
4314 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4315 return FALSE;
4316 break;
252b5132 4317
25dbc73a
AM
4318 /* This relocation describes which C++ vtable entries are actually
4319 used. Record for later use during GC. */
4320 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4321 BFD_ASSERT (h != NULL);
4322 if (h != NULL
4323 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4324 return FALSE;
4325 break;
252b5132 4326
25dbc73a
AM
4327 /* We shouldn't really be seeing these. */
4328 case R_PPC_TPREL32:
1d483afe
AM
4329 case R_PPC_TPREL16:
4330 case R_PPC_TPREL16_LO:
4331 case R_PPC_TPREL16_HI:
4332 case R_PPC_TPREL16_HA:
4333 if (!info->executable)
25dbc73a
AM
4334 info->flags |= DF_STATIC_TLS;
4335 goto dodyn;
252b5132 4336
25dbc73a
AM
4337 /* Nor these. */
4338 case R_PPC_DTPMOD32:
4339 case R_PPC_DTPREL32:
4340 goto dodyn;
252b5132 4341
9edfd1af
AM
4342 case R_PPC_REL32:
4343 if (h == NULL
4344 && got2 != NULL
4345 && (sec->flags & SEC_CODE) != 0
a877a2b6 4346 && info->shared
4a3dc543 4347 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4348 {
4349 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4350 the start of a function, which assembles to a REL32
4351 reference to .got2. If we detect one of these, then
4352 force the old PLT layout because the linker cannot
4353 reliably deduce the GOT pointer value needed for
4354 PLT call stubs. */
4355 asection *s;
87d72d41 4356 Elf_Internal_Sym *isym;
9edfd1af 4357
87d72d41
AM
4358 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4359 abfd, r_symndx);
4360 if (isym == NULL)
4361 return FALSE;
4362
4363 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4364 if (s == got2)
016687f8
AM
4365 {
4366 htab->plt_type = PLT_OLD;
4367 htab->old_bfd = abfd;
4368 }
9edfd1af 4369 }
7123df0e 4370 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4371 break;
625af618
AM
4372 /* fall through */
4373
4374 case R_PPC_ADDR32:
4375 case R_PPC_ADDR16:
4376 case R_PPC_ADDR16_LO:
4377 case R_PPC_ADDR16_HI:
4378 case R_PPC_ADDR16_HA:
4379 case R_PPC_UADDR32:
4380 case R_PPC_UADDR16:
4381 if (h != NULL && !info->shared)
4382 {
4383 /* We may need a plt entry if the symbol turns out to be
4384 a function defined in a dynamic object. */
3ec01793 4385 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4386 return FALSE;
4387
4388 /* We may need a copy reloc too. */
4389 h->non_got_ref = 1;
4390 h->pointer_equality_needed = 1;
4391 }
4392 goto dodyn;
9edfd1af 4393
25dbc73a
AM
4394 case R_PPC_REL24:
4395 case R_PPC_REL14:
4396 case R_PPC_REL14_BRTAKEN:
4397 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4398 if (h == NULL)
25dbc73a 4399 break;
7123df0e 4400 if (h == htab->elf.hgot)
d7128ce4 4401 {
7123df0e 4402 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4403 {
4404 htab->plt_type = PLT_OLD;
4405 htab->old_bfd = abfd;
4406 }
d7128ce4
AM
4407 break;
4408 }
25dbc73a 4409 /* fall through */
ee05f2fe 4410
25dbc73a 4411 case R_PPC_ADDR24:
25dbc73a
AM
4412 case R_PPC_ADDR14:
4413 case R_PPC_ADDR14_BRTAKEN:
4414 case R_PPC_ADDR14_BRNTAKEN:
25dbc73a
AM
4415 if (h != NULL && !info->shared)
4416 {
4417 /* We may need a plt entry if the symbol turns out to be
4418 a function defined in a dynamic object. */
e054468f 4419 h->needs_plt = 1;
de972ffa 4420 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4421 return FALSE;
625af618 4422 break;
25dbc73a 4423 }
7619e7c7 4424
25dbc73a
AM
4425 dodyn:
4426 /* If we are creating a shared library, and this is a reloc
4427 against a global symbol, or a non PC relative reloc
4428 against a local symbol, then we need to copy the reloc
4429 into the shared library. However, if we are linking with
4430 -Bsymbolic, we do not need to copy a reloc against a
4431 global symbol which is defined in an object we are
4432 including in the link (i.e., DEF_REGULAR is set). At
4433 this point we have not seen all the input files, so it is
4434 possible that DEF_REGULAR is not set now but will be set
4435 later (it is never cleared). In case of a weak definition,
4436 DEF_REGULAR may be cleared later by a strong definition in
4437 a shared library. We account for that possibility below by
4438 storing information in the dyn_relocs field of the hash
4439 table entry. A similar situation occurs when creating
4440 shared libraries and symbol visibility changes render the
4441 symbol local.
7619e7c7 4442
25dbc73a
AM
4443 If on the other hand, we are creating an executable, we
4444 may need to keep relocations for symbols satisfied by a
4445 dynamic library if we manage to avoid copy relocs for the
4446 symbol. */
4447 if ((info->shared
1d483afe 4448 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4449 || (h != NULL
198f1157 4450 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4451 || h->root.type == bfd_link_hash_defweak
4452 || !h->def_regular))))
4453 || (ELIMINATE_COPY_RELOCS
4454 && !info->shared
25dbc73a
AM
4455 && h != NULL
4456 && (h->root.type == bfd_link_hash_defweak
de972ffa 4457 || !h->def_regular)))
25dbc73a 4458 {
25dbc73a
AM
4459#ifdef DEBUG
4460 fprintf (stderr,
4461 "ppc_elf_check_relocs needs to "
4462 "create relocation for %s\n",
4463 (h && h->root.root.string
4464 ? h->root.root.string : "<unknown>"));
4465#endif
4466 if (sreloc == NULL)
4467 {
c9a2f333
AM
4468 if (htab->elf.dynobj == NULL)
4469 htab->elf.dynobj = abfd;
83bac4b0
NC
4470
4471 sreloc = _bfd_elf_make_dynamic_reloc_section
4472 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4473
25dbc73a 4474 if (sreloc == NULL)
83bac4b0 4475 return FALSE;
25dbc73a 4476 }
7619e7c7 4477
25dbc73a
AM
4478 /* If this is a global symbol, we count the number of
4479 relocations we need for this symbol. */
4480 if (h != NULL)
4481 {
f95f8542
AM
4482 struct elf_dyn_relocs *p;
4483 struct elf_dyn_relocs **rel_head;
4484
91d6fa6a 4485 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4486 p = *rel_head;
4487 if (p == NULL || p->sec != sec)
4488 {
4489 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4490 if (p == NULL)
4491 return FALSE;
4492 p->next = *rel_head;
4493 *rel_head = p;
4494 p->sec = sec;
4495 p->count = 0;
4496 p->pc_count = 0;
4497 }
4498 p->count += 1;
4499 if (!must_be_dyn_reloc (info, r_type))
4500 p->pc_count += 1;
25dbc73a
AM
4501 }
4502 else
4503 {
4504 /* Track dynamic relocs needed for local syms too.
4505 We really need local syms available to do this
4506 easily. Oh well. */
f95f8542
AM
4507 struct ppc_dyn_relocs *p;
4508 struct ppc_dyn_relocs **rel_head;
4509 bfd_boolean is_ifunc;
25dbc73a 4510 asection *s;
6edfbbad 4511 void *vpp;
87d72d41 4512 Elf_Internal_Sym *isym;
6edfbbad 4513
87d72d41
AM
4514 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4515 abfd, r_symndx);
4516 if (isym == NULL)
25dbc73a 4517 return FALSE;
7fce784e 4518
87d72d41
AM
4519 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4520 if (s == NULL)
4521 s = sec;
4522
6edfbbad 4523 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4524 rel_head = (struct ppc_dyn_relocs **) vpp;
4525 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4526 p = *rel_head;
4527 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4528 p = p->next;
4529 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4530 {
4531 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4532 if (p == NULL)
4533 return FALSE;
4534 p->next = *rel_head;
4535 *rel_head = p;
4536 p->sec = sec;
4537 p->ifunc = is_ifunc;
4538 p->count = 0;
4539 }
4540 p->count += 1;
25dbc73a 4541 }
7619e7c7 4542 }
25dbc73a
AM
4543
4544 break;
7619e7c7
AM
4545 }
4546 }
ee05f2fe 4547
25dbc73a
AM
4548 return TRUE;
4549}
4550\f
34c8bcba
JM
4551
4552/* Merge object attributes from IBFD into OBFD. Raise an error if
4553 there are conflicting attributes. */
4554static bfd_boolean
4555ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4556{
c6e65352
DJ
4557 obj_attribute *in_attr, *in_attrs;
4558 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM
4559
4560 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4561 {
4562 /* This is the first object. Copy the attributes. */
4563 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4564
4565 /* Use the Tag_null value to indicate the attributes have been
4566 initialized. */
4567 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4568
4569 return TRUE;
4570 }
4571
c6e65352
DJ
4572 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4573 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4574
34c8bcba
JM
4575 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4576 non-conflicting ones. */
c6e65352
DJ
4577 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4578 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4579 if (in_attr->i != out_attr->i)
34c8bcba 4580 {
c6e65352
DJ
4581 out_attr->type = 1;
4582 if (out_attr->i == 0)
4583 out_attr->i = in_attr->i;
4584 else if (in_attr->i == 0)
34c8bcba 4585 ;
c6e65352 4586 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM
4587 _bfd_error_handler
4588 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
3c7b9897
AM
4589 else if (out_attr->i == 1 && in_attr->i == 3)
4590 _bfd_error_handler
5b914448 4591 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM
4592 obfd, ibfd);
4593 else if (out_attr->i == 3 && in_attr->i == 1)
4594 _bfd_error_handler
5b914448 4595 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM
4596 ibfd, obfd);
4597 else if (out_attr->i == 3 && in_attr->i == 2)
4598 _bfd_error_handler
5b914448 4599 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
3c7b9897
AM
4600 ibfd, obfd);
4601 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
34c8bcba
JM
4602 _bfd_error_handler
4603 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
3c7b9897 4604 else if (in_attr->i > 3)
34c8bcba
JM
4605 _bfd_error_handler
4606 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 4607 in_attr->i);
34c8bcba
JM
4608 else
4609 _bfd_error_handler
4610 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ
4611 out_attr->i);
4612 }
4613
4614 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4615 merge non-conflicting ones. */
4616 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4617 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4618 if (in_attr->i != out_attr->i)
4619 {
4620 const char *in_abi = NULL, *out_abi = NULL;
4621
4622 switch (in_attr->i)
4623 {
4624 case 1: in_abi = "generic"; break;
4625 case 2: in_abi = "AltiVec"; break;
4626 case 3: in_abi = "SPE"; break;
4627 }
4628
4629 switch (out_attr->i)
4630 {
4631 case 1: out_abi = "generic"; break;
4632 case 2: out_abi = "AltiVec"; break;
4633 case 3: out_abi = "SPE"; break;
4634 }
4635
4636 out_attr->type = 1;
4637 if (out_attr->i == 0)
4638 out_attr->i = in_attr->i;
4639 else if (in_attr->i == 0)
4640 ;
4641 /* For now, allow generic to transition to AltiVec or SPE
4642 without a warning. If GCC marked files with their stack
4643 alignment and used don't-care markings for files which are
4644 not affected by the vector ABI, we could warn about this
4645 case too. */
4646 else if (out_attr->i == 1)
4647 out_attr->i = in_attr->i;
4648 else if (in_attr->i == 1)
4649 ;
4650 else if (in_abi == NULL)
4651 _bfd_error_handler
4652 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4653 in_attr->i);
4654 else if (out_abi == NULL)
4655 _bfd_error_handler
4656 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4657 in_attr->i);
4658 else
4659 _bfd_error_handler
4660 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4661 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM
4662 }
4663
f82e0623
NF
4664 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4665 and merge non-conflicting ones. */
4666 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4667 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4668 if (in_attr->i != out_attr->i)
4669 {
4670 out_attr->type = 1;
4671 if (out_attr->i == 0)
4672 out_attr->i = in_attr->i;
4673 else if (in_attr->i == 0)
4674 ;
4675 else if (out_attr->i == 1 && in_attr->i == 2)
4676 _bfd_error_handler
4677 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4678 else if (out_attr->i == 2 && in_attr->i == 1)
4679 _bfd_error_handler
4680 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4681 else if (in_attr->i > 2)
4682 _bfd_error_handler
4683 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4684 in_attr->i);
4685 else
4686 _bfd_error_handler
4687 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4688 out_attr->i);
4689 }
4690
34c8bcba
JM
4691 /* Merge Tag_compatibility attributes and any common GNU ones. */
4692 _bfd_elf_merge_object_attributes (ibfd, obfd);
4693
4694 return TRUE;
4695}
4696
8853c3d3
AM
4697/* Merge backend specific data from an object file to the output
4698 object file when linking. */
4699
4700static bfd_boolean
4701ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4702{
4703 flagword old_flags;
4704 flagword new_flags;
4705 bfd_boolean error;
4706
0c8d6e5c 4707 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4708 return TRUE;
4709
cc643b88 4710 /* Check if we have the same endianness. */
8853c3d3
AM
4711 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4712 return FALSE;
4713
34c8bcba
JM
4714 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4715 return FALSE;
4716
8853c3d3
AM
4717 new_flags = elf_elfheader (ibfd)->e_flags;
4718 old_flags = elf_elfheader (obfd)->e_flags;
4719 if (!elf_flags_init (obfd))
4720 {
4721 /* First call, no flags set. */
4722 elf_flags_init (obfd) = TRUE;
4723 elf_elfheader (obfd)->e_flags = new_flags;
4724 }
4725
4726 /* Compatible flags are ok. */
4727 else if (new_flags == old_flags)
4728 ;
4729
4730 /* Incompatible flags. */
4731 else
4732 {
4733 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4734 to be linked with either. */
4735 error = FALSE;
4736 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4737 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4738 {
4739 error = TRUE;
4740 (*_bfd_error_handler)
4741 (_("%B: compiled with -mrelocatable and linked with "
4742 "modules compiled normally"), ibfd);
4743 }
4744 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4745 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4746 {
4747 error = TRUE;
4748 (*_bfd_error_handler)
4749 (_("%B: compiled normally and linked with "
4750 "modules compiled with -mrelocatable"), ibfd);
4751 }
4752
4753 /* The output is -mrelocatable-lib iff both the input files are. */
4754 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4755 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4756
4757 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4758 but each input file is either -mrelocatable or -mrelocatable-lib. */
4759 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4760 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4761 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4762 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4763
4764 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4765 any module uses it. */
4766 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4767
4768 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4769 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4770
4771 /* Warn about any other mismatches. */
4772 if (new_flags != old_flags)
4773 {
4774 error = TRUE;
4775 (*_bfd_error_handler)
4776 (_("%B: uses different e_flags (0x%lx) fields "
4777 "than previous modules (0x%lx)"),
4778 ibfd, (long) new_flags, (long) old_flags);
4779 }
4780
4781 if (error)
4782 {
4783 bfd_set_error (bfd_error_bad_value);
4784 return FALSE;
4785 }
4786 }
4787
4788 return TRUE;
4789}
b9c361e0
JL
4790
4791static void
86c95733
AM
4792ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
4793 bfd_vma value,
4794 split16_format_type split16_format)
b9c361e0
JL
4795
4796{
86c95733 4797 unsigned int insn, top5;
b9c361e0 4798
86c95733
AM
4799 insn = bfd_get_32 (output_bfd, loc);
4800 top5 = value & 0xf800;
4801 top5 = top5 << (split16_format == split16a_type ? 9 : 5);
b9c361e0 4802 insn |= top5;
86c95733
AM
4803 insn |= value & 0x7ff;
4804 bfd_put_32 (output_bfd, insn, loc);
b9c361e0
JL
4805}
4806
8853c3d3 4807\f
d7128ce4
AM
4808/* Choose which PLT scheme to use, and set .plt flags appropriately.
4809 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4810int
4811ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4812 struct bfd_link_info *info)
d7128ce4
AM
4813{
4814 struct ppc_elf_link_hash_table *htab;
9d8504b1 4815 flagword flags;
d7128ce4
AM
4816
4817 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4818
4819 if (htab->plt_type == PLT_UNSET)
016687f8 4820 {
b3874e1a
AM
4821 struct elf_link_hash_entry *h;
4822
5446cbdf 4823 if (htab->params->plt_style == PLT_OLD)
016687f8 4824 htab->plt_type = PLT_OLD;
b3874e1a
AM
4825 else if (info->shared
4826 && htab->elf.dynamic_sections_created
4827 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4828 FALSE, FALSE, TRUE)) != NULL
4829 && (h->type == STT_FUNC
4830 || h->needs_plt)
4831 && h->ref_regular
4832 && !(SYMBOL_CALLS_LOCAL (info, h)
4833 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4834 && h->root.type == bfd_link_hash_undefweak)))
4835 {
4836 /* Profiling of shared libs (and pies) is not supported with
4837 secure plt, because ppc32 does profiling before a
4838 function prologue and a secure plt pic call stubs needs
4839 r30 to be set up. */
4840 htab->plt_type = PLT_OLD;
4841 }
016687f8
AM
4842 else
4843 {
4844 bfd *ibfd;
5446cbdf 4845 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4846
4847 /* Look through the reloc flags left by ppc_elf_check_relocs.
4848 Use the old style bss plt if a file makes plt calls
4849 without using the new relocs, and if ld isn't given
4850 --secure-plt and we never see REL16 relocs. */
4851 if (plt_type == PLT_UNSET)
4852 plt_type = PLT_OLD;
60b31e8d 4853 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
0c8d6e5c 4854 if (is_ppc_elf (ibfd))
016687f8
AM
4855 {
4856 if (ppc_elf_tdata (ibfd)->has_rel16)
4857 plt_type = PLT_NEW;
4858 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4859 {
4860 plt_type = PLT_OLD;
4861 htab->old_bfd = ibfd;
4862 break;
4863 }
4864 }
4865 htab->plt_type = plt_type;
4866 }
4867 }
5446cbdf 4868 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
4869 {
4870 if (htab->old_bfd != NULL)
4871 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4872 htab->old_bfd);
4873 else
4874 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4875 }
d7128ce4 4876
4a3dc543 4877 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 4878
4a3dc543 4879 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
4880 {
4881 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4882 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
4883
4884 /* The new PLT is a loaded section. */
4885 if (htab->plt != NULL
4886 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4887 return -1;
4888
4889 /* The new GOT is not executable. */
4890 if (htab->got != NULL
4891 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4892 return -1;
d7128ce4
AM
4893 }
4894 else
4895 {
4896 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
4897 if (htab->glink != NULL
4898 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4899 return -1;
d7128ce4 4900 }
4a3dc543 4901 return htab->plt_type == PLT_NEW;
d7128ce4
AM
4902}
4903\f
25dbc73a
AM
4904/* Return the section that should be marked against GC for a given
4905 relocation. */
586119b3 4906
25dbc73a
AM
4907static asection *
4908ppc_elf_gc_mark_hook (asection *sec,
07adf181 4909 struct bfd_link_info *info,
25dbc73a
AM
4910 Elf_Internal_Rela *rel,
4911 struct elf_link_hash_entry *h,
4912 Elf_Internal_Sym *sym)
4913{
4914 if (h != NULL)
07adf181
AM
4915 switch (ELF32_R_TYPE (rel->r_info))
4916 {
4917 case R_PPC_GNU_VTINHERIT:
4918 case R_PPC_GNU_VTENTRY:
4919 return NULL;
4920 }
4921
4922 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 4923}
a876ecf9 4924
25dbc73a
AM
4925/* Update the got, plt and dynamic reloc reference counts for the
4926 section being removed. */
4927
4928static bfd_boolean
4929ppc_elf_gc_sweep_hook (bfd *abfd,
4930 struct bfd_link_info *info,
4931 asection *sec,
4932 const Elf_Internal_Rela *relocs)
4933{
4934 struct ppc_elf_link_hash_table *htab;
4935 Elf_Internal_Shdr *symtab_hdr;
4936 struct elf_link_hash_entry **sym_hashes;
4937 bfd_signed_vma *local_got_refcounts;
4938 const Elf_Internal_Rela *rel, *relend;
a6aa5195 4939 asection *got2;
25dbc73a 4940
7dda2462
TG
4941 if (info->relocatable)
4942 return TRUE;
4943
c87b5a93
AM
4944 if ((sec->flags & SEC_ALLOC) == 0)
4945 return TRUE;
4946
25dbc73a
AM
4947 elf_section_data (sec)->local_dynrel = NULL;
4948
4949 htab = ppc_elf_hash_table (info);
0ffa91dd 4950 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
4951 sym_hashes = elf_sym_hashes (abfd);
4952 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 4953 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4954
4955 relend = relocs + sec->reloc_count;
4956 for (rel = relocs; rel < relend; rel++)
4957 {
4958 unsigned long r_symndx;
4959 enum elf_ppc_reloc_type r_type;
4960 struct elf_link_hash_entry *h = NULL;
4961
4962 r_symndx = ELF32_R_SYM (rel->r_info);
4963 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 4964 {
6061a67d 4965 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
4966 struct ppc_elf_link_hash_entry *eh;
4967
4968 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4969 while (h->root.type == bfd_link_hash_indirect
4970 || h->root.type == bfd_link_hash_warning)
4971 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4972 eh = (struct ppc_elf_link_hash_entry *) h;
4973
4974 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4975 if (p->sec == sec)
4976 {
4977 /* Everything must go for SEC. */
4978 *pp = p->next;
4979 break;
4980 }
a876ecf9 4981 }
ee05f2fe 4982
25dbc73a 4983 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
4984 if (!htab->is_vxworks
4985 && h == NULL
4986 && local_got_refcounts != NULL
4987 && (!info->shared
4988 || is_branch_reloc (r_type)))
e054468f 4989 {
de972ffa
AM
4990 struct plt_entry **local_plt = (struct plt_entry **)
4991 (local_got_refcounts + symtab_hdr->sh_info);
4992 char *local_got_tls_masks = (char *)
4993 (local_plt + symtab_hdr->sh_info);
4994 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 4995 {
de972ffa 4996 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
4997 bfd_vma addend = 0;
4998 struct plt_entry *ent;
4999
5000 if (r_type == R_PPC_PLTREL24 && info->shared)
5001 addend = rel->r_addend;
5002 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
5003 if (ent->plt.refcount > 0)
5004 ent->plt.refcount -= 1;
5005 continue;
5006 }
5007 }
5008
25dbc73a 5009 switch (r_type)
ee05f2fe 5010 {
25dbc73a
AM
5011 case R_PPC_GOT_TLSLD16:
5012 case R_PPC_GOT_TLSLD16_LO:
5013 case R_PPC_GOT_TLSLD16_HI:
5014 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
5015 case R_PPC_GOT_TLSGD16:
5016 case R_PPC_GOT_TLSGD16_LO:
5017 case R_PPC_GOT_TLSGD16_HI:
5018 case R_PPC_GOT_TLSGD16_HA:
5019 case R_PPC_GOT_TPREL16:
5020 case R_PPC_GOT_TPREL16_LO:
5021 case R_PPC_GOT_TPREL16_HI:
5022 case R_PPC_GOT_TPREL16_HA:
5023 case R_PPC_GOT_DTPREL16:
5024 case R_PPC_GOT_DTPREL16_LO:
5025 case R_PPC_GOT_DTPREL16_HI:
5026 case R_PPC_GOT_DTPREL16_HA:
5027 case R_PPC_GOT16:
5028 case R_PPC_GOT16_LO:
5029 case R_PPC_GOT16_HI:
5030 case R_PPC_GOT16_HA:
5031 if (h != NULL)
ee05f2fe 5032 {
25dbc73a
AM
5033 if (h->got.refcount > 0)
5034 h->got.refcount--;
91e21fb7
AM
5035 if (!info->shared)
5036 {
5037 struct plt_entry *ent;
5038
5039 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 5040 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
5041 ent->plt.refcount -= 1;
5042 }
ee05f2fe 5043 }
25dbc73a
AM
5044 else if (local_got_refcounts != NULL)
5045 {
5046 if (local_got_refcounts[r_symndx] > 0)
5047 local_got_refcounts[r_symndx]--;
5048 }
5049 break;
ee05f2fe 5050
25dbc73a
AM
5051 case R_PPC_REL24:
5052 case R_PPC_REL14:
5053 case R_PPC_REL14_BRTAKEN:
5054 case R_PPC_REL14_BRNTAKEN:
5055 case R_PPC_REL32:
3b36f7e6 5056 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM
5057 break;
5058 /* Fall thru */
ee05f2fe 5059
25dbc73a
AM
5060 case R_PPC_ADDR32:
5061 case R_PPC_ADDR24:
5062 case R_PPC_ADDR16:
5063 case R_PPC_ADDR16_LO:
5064 case R_PPC_ADDR16_HI:
5065 case R_PPC_ADDR16_HA:
5066 case R_PPC_ADDR14:
5067 case R_PPC_ADDR14_BRTAKEN:
5068 case R_PPC_ADDR14_BRNTAKEN:
5069 case R_PPC_UADDR32:
5070 case R_PPC_UADDR16:
87538722
AM
5071 if (info->shared)
5072 break;
5073
25dbc73a
AM
5074 case R_PPC_PLT32:
5075 case R_PPC_PLTREL24:
87538722 5076 case R_PPC_PLTREL32:
25dbc73a
AM
5077 case R_PPC_PLT16_LO:
5078 case R_PPC_PLT16_HI:
5079 case R_PPC_PLT16_HA:
5080 if (h != NULL)
5081 {
a877a2b6
AM
5082 bfd_vma addend = 0;
5083 struct plt_entry *ent;
5084
5085 if (r_type == R_PPC_PLTREL24 && info->shared)
5086 addend = rel->r_addend;
5087 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5088 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5089 ent->plt.refcount -= 1;
25dbc73a
AM
5090 }
5091 break;
ee05f2fe 5092
25dbc73a
AM
5093 default:
5094 break;
5095 }
7fce784e 5096 }
7fce784e
AS
5097 return TRUE;
5098}
25dbc73a 5099\f
3a71aa26
AM
5100/* Set plt output section type, htab->tls_get_addr, and call the
5101 generic ELF tls_setup function. */
7fce784e 5102
25dbc73a 5103asection *
5446cbdf 5104ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5105{
25dbc73a 5106 struct ppc_elf_link_hash_table *htab;
7fce784e 5107
25dbc73a 5108 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5109 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5110 FALSE, FALSE, TRUE);
5446cbdf 5111 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5112 {
5113 struct elf_link_hash_entry *opt, *tga;
5114 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5115 FALSE, FALSE, TRUE);
5116 if (opt != NULL
5117 && (opt->root.type == bfd_link_hash_defined
5118 || opt->root.type == bfd_link_hash_defweak))
5119 {
5120 /* If glibc supports an optimized __tls_get_addr call stub,
5121 signalled by the presence of __tls_get_addr_opt, and we'll
5122 be calling __tls_get_addr via a plt call stub, then
5123 make __tls_get_addr point to __tls_get_addr_opt. */
5124 tga = htab->tls_get_addr;
5125 if (htab->elf.dynamic_sections_created
5126 && tga != NULL
5127 && (tga->type == STT_FUNC
5128 || tga->needs_plt)
5129 && !(SYMBOL_CALLS_LOCAL (info, tga)
5130 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5131 && tga->root.type == bfd_link_hash_undefweak)))
5132 {
5133 struct plt_entry *ent;
32af9f6e
AM
5134 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5135 if (ent->plt.refcount > 0)
5136 break;
5137 if (ent != NULL)
a7f2871e
AM
5138 {
5139 tga->root.type = bfd_link_hash_indirect;
5140 tga->root.u.i.link = &opt->root;
5141 ppc_elf_copy_indirect_symbol (info, opt, tga);
5142 if (opt->dynindx != -1)
5143 {
5144 /* Use __tls_get_addr_opt in dynamic relocations. */
5145 opt->dynindx = -1;
5146 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5147 opt->dynstr_index);
5148 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5149 return FALSE;
5150 }
5151 htab->tls_get_addr = opt;
5152 }
5153 }
5154 }
5155 else
5446cbdf 5156 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5157 }
4a3dc543 5158 if (htab->plt_type == PLT_NEW
d7128ce4
AM
5159 && htab->plt != NULL
5160 && htab->plt->output_section != NULL)
5161 {
5162 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5163 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5164 }
5165
25dbc73a 5166 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5167}
5168
3a71aa26
AM
5169/* Return TRUE iff REL is a branch reloc with a global symbol matching
5170 HASH. */
5171
5172static bfd_boolean
5173branch_reloc_hash_match (const bfd *ibfd,
5174 const Elf_Internal_Rela *rel,
5175 const struct elf_link_hash_entry *hash)
5176{
5177 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5178 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5179 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5180
e054468f 5181 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5182 {
5183 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5184 struct elf_link_hash_entry *h;
5185
5186 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5187 while (h->root.type == bfd_link_hash_indirect
5188 || h->root.type == bfd_link_hash_warning)
5189 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5190 if (h == hash)
5191 return TRUE;
5192 }
5193 return FALSE;
5194}
5195
25dbc73a
AM
5196/* Run through all the TLS relocs looking for optimization
5197 opportunities. */
252b5132 5198
25dbc73a
AM
5199bfd_boolean
5200ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5201 struct bfd_link_info *info)
252b5132 5202{
7fce784e 5203 bfd *ibfd;
25dbc73a
AM
5204 asection *sec;
5205 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5206 int pass;
252b5132 5207
1d483afe 5208 if (info->relocatable || !info->executable)
25dbc73a 5209 return TRUE;
252b5132 5210
7619e7c7 5211 htab = ppc_elf_hash_table (info);
663a1470
AM
5212 if (htab == NULL)
5213 return FALSE;
5214
b7fcf6f6
AM
5215 /* Make two passes through the relocs. First time check that tls
5216 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5217 followed by such a call. If they are not, don't do any tls
5218 optimization. On the second pass twiddle tls_mask flags to
5219 notify relocate_section that optimization can be done, and
5220 adjust got and plt refcounts. */
b7fcf6f6
AM
5221 for (pass = 0; pass < 2; ++pass)
5222 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5223 {
5224 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5225 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5226 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5227
b7fcf6f6
AM
5228 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5229 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5230 {
5231 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5232 int expecting_tls_get_addr = 0;
252b5132 5233
b7fcf6f6
AM
5234 /* Read the relocations. */
5235 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5236 info->keep_memory);
5237 if (relstart == NULL)
5238 return FALSE;
7619e7c7 5239
b7fcf6f6
AM
5240 relend = relstart + sec->reloc_count;
5241 for (rel = relstart; rel < relend; rel++)
5242 {
5243 enum elf_ppc_reloc_type r_type;
5244 unsigned long r_symndx;
5245 struct elf_link_hash_entry *h = NULL;
5246 char *tls_mask;
5247 char tls_set, tls_clear;
5248 bfd_boolean is_local;
b7fcf6f6
AM
5249 bfd_signed_vma *got_count;
5250
5251 r_symndx = ELF32_R_SYM (rel->r_info);
5252 if (r_symndx >= symtab_hdr->sh_info)
5253 {
5254 struct elf_link_hash_entry **sym_hashes;
7fce784e 5255
b7fcf6f6
AM
5256 sym_hashes = elf_sym_hashes (ibfd);
5257 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5258 while (h->root.type == bfd_link_hash_indirect
5259 || h->root.type == bfd_link_hash_warning)
5260 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5261 }
7619e7c7 5262
b7fcf6f6
AM
5263 is_local = FALSE;
5264 if (h == NULL
5265 || !h->def_dynamic)
5266 is_local = TRUE;
7619e7c7 5267
b7fcf6f6 5268 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5269 /* If this section has old-style __tls_get_addr calls
5270 without marker relocs, then check that each
5271 __tls_get_addr call reloc is preceded by a reloc
5272 that conceivably belongs to the __tls_get_addr arg
5273 setup insn. If we don't find matching arg setup
5274 relocs, don't do any tls optimization. */
5275 if (pass == 0
5276 && sec->has_tls_get_addr_call
5277 && h != NULL
5278 && h == htab->tls_get_addr
5279 && !expecting_tls_get_addr
5280 && is_branch_reloc (r_type))
5281 {
25f53a85 5282 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5283 "TLS optimization disabled\n",
5284 ibfd, sec, rel->r_offset);
5285 if (elf_section_data (sec)->relocs != relstart)
5286 free (relstart);
5287 return TRUE;
5288 }
5289
5290 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5291 switch (r_type)
5292 {
5293 case R_PPC_GOT_TLSLD16:
5294 case R_PPC_GOT_TLSLD16_LO:
5295 expecting_tls_get_addr = 1;
5296 /* Fall thru */
5297
5298 case R_PPC_GOT_TLSLD16_HI:
5299 case R_PPC_GOT_TLSLD16_HA:
5300 /* These relocs should never be against a symbol
5301 defined in a shared lib. Leave them alone if
5302 that turns out to be the case. */
5303 if (!is_local)
5304 continue;
5305
5306 /* LD -> LE */
5307 tls_set = 0;
5308 tls_clear = TLS_LD;
5309 break;
5310
5311 case R_PPC_GOT_TLSGD16:
5312 case R_PPC_GOT_TLSGD16_LO:
5313 expecting_tls_get_addr = 1;
5314 /* Fall thru */
5315
5316 case R_PPC_GOT_TLSGD16_HI:
5317 case R_PPC_GOT_TLSGD16_HA:
5318 if (is_local)
5319 /* GD -> LE */
5320 tls_set = 0;
5321 else
5322 /* GD -> IE */
5323 tls_set = TLS_TLS | TLS_TPRELGD;
5324 tls_clear = TLS_GD;
5325 break;
5326
5327 case R_PPC_GOT_TPREL16:
5328 case R_PPC_GOT_TPREL16_LO:
5329 case R_PPC_GOT_TPREL16_HI:
5330 case R_PPC_GOT_TPREL16_HA:
5331 if (is_local)
5332 {
5333 /* IE -> LE */
5334 tls_set = 0;
5335 tls_clear = TLS_TPREL;
5336 break;
5337 }
5338 else
5339 continue;
5340
32af9f6e
AM
5341 case R_PPC_TLSGD:
5342 case R_PPC_TLSLD:
5343 expecting_tls_get_addr = 2;
5344 tls_set = 0;
5345 tls_clear = 0;
5346 break;
5347
b7fcf6f6 5348 default:
25dbc73a 5349 continue;
b7fcf6f6 5350 }
25dbc73a 5351
b7fcf6f6
AM
5352 if (pass == 0)
5353 {
727fc41e 5354 if (!expecting_tls_get_addr
32af9f6e
AM
5355 || (expecting_tls_get_addr == 1
5356 && !sec->has_tls_get_addr_call))
b7fcf6f6 5357 continue;
25dbc73a 5358
3a71aa26
AM
5359 if (rel + 1 < relend
5360 && branch_reloc_hash_match (ibfd, rel + 1,
5361 htab->tls_get_addr))
5362 continue;
25dbc73a 5363
b7fcf6f6
AM
5364 /* Uh oh, we didn't find the expected call. We
5365 could just mark this symbol to exclude it
5366 from tls optimization but it's safer to skip
663a1470 5367 the entire optimization. */
25f53a85 5368 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5369 "TLS optimization disabled\n"),
5370 ibfd, sec, rel->r_offset);
5371 if (elf_section_data (sec)->relocs != relstart)
5372 free (relstart);
5373 return TRUE;
b7fcf6f6 5374 }
25dbc73a 5375
32af9f6e
AM
5376 if (expecting_tls_get_addr)
5377 {
5378 struct plt_entry *ent;
5379 bfd_vma addend = 0;
5380
5381 if (info->shared
5382 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5383 addend = rel[1].r_addend;
5384 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5385 got2, addend);
5386 if (ent != NULL && ent->plt.refcount > 0)
5387 ent->plt.refcount -= 1;
5388
5389 if (expecting_tls_get_addr == 2)
5390 continue;
5391 }
5392
b7fcf6f6
AM
5393 if (h != NULL)
5394 {
5395 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5396 got_count = &h->got.refcount;
5397 }
5398 else
5399 {
b7fcf6f6 5400 bfd_signed_vma *lgot_refs;
e054468f 5401 struct plt_entry **local_plt;
b7fcf6f6 5402 char *lgot_masks;
25dbc73a 5403
b7fcf6f6
AM
5404 if (locsyms == NULL)
5405 {
5406 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5407 if (locsyms == NULL)
5408 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5409 symtab_hdr->sh_info,
5410 0, NULL, NULL, NULL);
5411 if (locsyms == NULL)
5412 {
5413 if (elf_section_data (sec)->relocs != relstart)
5414 free (relstart);
5415 return FALSE;
5416 }
5417 }
b7fcf6f6
AM
5418 lgot_refs = elf_local_got_refcounts (ibfd);
5419 if (lgot_refs == NULL)
5420 abort ();
e054468f
AM
5421 local_plt = (struct plt_entry **)
5422 (lgot_refs + symtab_hdr->sh_info);
5423 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5424 tls_mask = &lgot_masks[r_symndx];
5425 got_count = &lgot_refs[r_symndx];
5426 }
25dbc73a 5427
b7fcf6f6
AM
5428 if (tls_set == 0)
5429 {
5430 /* We managed to get rid of a got entry. */
5431 if (*got_count > 0)
5432 *got_count -= 1;
5433 }
25dbc73a 5434
b7fcf6f6
AM
5435 *tls_mask |= tls_set;
5436 *tls_mask &= ~tls_clear;
5437 }
25dbc73a 5438
b7fcf6f6
AM
5439 if (elf_section_data (sec)->relocs != relstart)
5440 free (relstart);
5441 }
5442
5443 if (locsyms != NULL
5444 && (symtab_hdr->contents != (unsigned char *) locsyms))
5445 {
5446 if (!info->keep_memory)
5447 free (locsyms);
5448 else
5449 symtab_hdr->contents = (unsigned char *) locsyms;
5450 }
5451 }
25dbc73a
AM
5452 return TRUE;
5453}
5454\f
625af618
AM
5455/* Return true if we have dynamic relocs that apply to read-only sections. */
5456
5457static bfd_boolean
5458readonly_dynrelocs (struct elf_link_hash_entry *h)
5459{
6061a67d 5460 struct elf_dyn_relocs *p;
625af618
AM
5461
5462 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5463 {
5464 asection *s = p->sec->output_section;
5465
5466 if (s != NULL
5467 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5468 == (SEC_READONLY | SEC_ALLOC)))
5469 return TRUE;
5470 }
5471 return FALSE;
5472}
5473
25dbc73a
AM
5474/* Adjust a symbol defined by a dynamic object and referenced by a
5475 regular object. The current definition is in some section of the
5476 dynamic object, but we're not including those sections. We have to
5477 change the definition to something the rest of the link can
5478 understand. */
7fce784e 5479
25dbc73a
AM
5480static bfd_boolean
5481ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5482 struct elf_link_hash_entry *h)
5483{
5484 struct ppc_elf_link_hash_table *htab;
5485 asection *s;
7fce784e 5486
25dbc73a
AM
5487#ifdef DEBUG
5488 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5489 h->root.root.string);
5490#endif
252b5132 5491
25dbc73a
AM
5492 /* Make sure we know what is going on here. */
5493 htab = ppc_elf_hash_table (info);
5494 BFD_ASSERT (htab->elf.dynobj != NULL
5495 && (h->needs_plt
91e21fb7 5496 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5497 || h->u.weakdef != NULL
5498 || (h->def_dynamic
5499 && h->ref_regular
5500 && !h->def_regular)));
252b5132 5501
25dbc73a
AM
5502 /* Deal with function syms. */
5503 if (h->type == STT_FUNC
e054468f 5504 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5505 || h->needs_plt)
5506 {
5507 /* Clear procedure linkage table information for any symbol that
5508 won't need a .plt entry. */
a6aa5195
AM
5509 struct plt_entry *ent;
5510 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5511 if (ent->plt.refcount > 0)
5512 break;
5513 if (ent == NULL
e054468f
AM
5514 || (h->type != STT_GNU_IFUNC
5515 && (SYMBOL_CALLS_LOCAL (info, h)
5516 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5517 && h->root.type == bfd_link_hash_undefweak))))
252b5132 5518 {
25dbc73a 5519 /* A PLT entry is not required/allowed when:
252b5132 5520
25dbc73a
AM
5521 1. We are not using ld.so; because then the PLT entry
5522 can't be set up, so we can't use one. In this case,
5523 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5524
25dbc73a
AM
5525 2. GC has rendered the entry unused.
5526
5527 3. We know for certain that a call to this symbol
5528 will go to this object, or will remain undefined. */
a6aa5195 5529 h->plt.plist = NULL;
25dbc73a
AM
5530 h->needs_plt = 0;
5531 }
625af618
AM
5532 else
5533 {
25f23106
AM
5534 /* After adjust_dynamic_symbol, non_got_ref set in the
5535 non-shared case means that we have allocated space in
5536 .dynbss for the symbol and thus dyn_relocs for this
5537 symbol should be discarded.
625af618
AM
5538 If we get here we know we are making a PLT entry for this
5539 symbol, and in an executable we'd normally resolve
5540 relocations against this symbol to the PLT entry. Allow
5541 dynamic relocs if the reference is weak, and the dynamic
5542 relocs will not cause text relocation. */
5543 if (!h->ref_regular_nonweak
5544 && h->non_got_ref
25f23106 5545 && h->type != STT_GNU_IFUNC
625af618
AM
5546 && !htab->is_vxworks
5547 && !ppc_elf_hash_entry (h)->has_sda_refs
5548 && !readonly_dynrelocs (h))
5549 h->non_got_ref = 0;
5550 }
25dbc73a 5551 return TRUE;
252b5132 5552 }
25dbc73a 5553 else
a6aa5195 5554 h->plt.plist = NULL;
252b5132 5555
25dbc73a
AM
5556 /* If this is a weak symbol, and there is a real definition, the
5557 processor independent code will have arranged for us to see the
5558 real definition first, and we can just use the same value. */
5559 if (h->u.weakdef != NULL)
252b5132 5560 {
25dbc73a
AM
5561 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5562 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5563 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5564 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5565 if (ELIMINATE_COPY_RELOCS)
5566 h->non_got_ref = h->u.weakdef->non_got_ref;
5567 return TRUE;
5568 }
dc810e39 5569
25dbc73a
AM
5570 /* This is a reference to a symbol defined by a dynamic object which
5571 is not a function. */
252b5132 5572
25dbc73a
AM
5573 /* If we are creating a shared library, we must presume that the
5574 only references to the symbol are via the global offset table.
5575 For such cases we need not do anything here; the relocations will
5576 be handled correctly by relocate_section. */
5577 if (info->shared)
5578 return TRUE;
252b5132 5579
25dbc73a
AM
5580 /* If there are no references to this symbol that do not use the
5581 GOT, we don't need to generate a copy reloc. */
5582 if (!h->non_got_ref)
5583 return TRUE;
5584
cfd2c773
NS
5585 /* If we didn't find any dynamic relocs in read-only sections, then
5586 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5587 We can't do this if there are any small data relocations. This
5588 doesn't work on VxWorks, where we can not have dynamic
5589 relocations (other than copy and jump slot relocations) in an
5590 executable. */
4dc4a9a5 5591 if (ELIMINATE_COPY_RELOCS
cfd2c773 5592 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5593 && !htab->is_vxworks
5594 && !h->def_regular
5595 && !readonly_dynrelocs (h))
25dbc73a 5596 {
625af618
AM
5597 h->non_got_ref = 0;
5598 return TRUE;
252b5132
RH
5599 }
5600
25dbc73a
AM
5601 /* We must allocate the symbol in our .dynbss section, which will
5602 become part of the .bss section of the executable. There will be
5603 an entry for this symbol in the .dynsym section. The dynamic
5604 object will contain position independent code, so all references
5605 from the dynamic object to this symbol will go through the global
5606 offset table. The dynamic linker will use the .dynsym entry to
5607 determine the address it must put in the global offset table, so
5608 both the dynamic object and the regular object will refer to the
5609 same memory location for the variable.
5610
4dc4a9a5
DJ
5611 Of course, if the symbol is referenced using SDAREL relocs, we
5612 must instead allocate it in .sbss. */
25dbc73a 5613
4dc4a9a5 5614 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5615 s = htab->dynsbss;
5616 else
5617 s = htab->dynbss;
5618 BFD_ASSERT (s != NULL);
5619
5620 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5621 copy the initial value out of the dynamic object and into the
5622 runtime process image. We need to remember the offset into the
5623 .rela.bss section we are going to use. */
1d7e9d18 5624 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5625 {
5626 asection *srel;
5627
4dc4a9a5 5628 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5629 srel = htab->relsbss;
5630 else
5631 srel = htab->relbss;
5632 BFD_ASSERT (srel != NULL);
5633 srel->size += sizeof (Elf32_External_Rela);
5634 h->needs_copy = 1;
5635 }
7619e7c7 5636
027297b7 5637 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM
5638}
5639\f
ac39eb42
AM
5640/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5641 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5642 specifying the addend on the plt relocation. For -fpic code, the sym
5643 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5644 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5645
5646static bfd_boolean
5647add_stub_sym (struct plt_entry *ent,
5648 struct elf_link_hash_entry *h,
ac39eb42 5649 struct bfd_link_info *info)
0ba07910
AM
5650{
5651 struct elf_link_hash_entry *sh;
5652 size_t len1, len2, len3;
5653 char *name;
ac39eb42
AM
5654 const char *stub;
5655 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5656
a877a2b6 5657 if (info->shared)
ac39eb42
AM
5658 stub = ".plt_pic32.";
5659 else
5660 stub = ".plt_call32.";
0ba07910
AM
5661
5662 len1 = strlen (h->root.root.string);
ac39eb42 5663 len2 = strlen (stub);
0ba07910
AM
5664 len3 = 0;
5665 if (ent->sec)
5666 len3 = strlen (ent->sec->name);
ac39eb42 5667 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5668 if (name == NULL)
5669 return FALSE;
5670 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5671 if (ent->sec)
5672 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5673 memcpy (name + 8 + len3, stub, len2);
5674 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5675 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5676 if (sh == NULL)
5677 return FALSE;
5678 if (sh->root.type == bfd_link_hash_new)
5679 {
5680 sh->root.type = bfd_link_hash_defined;
5681 sh->root.u.def.section = htab->glink;
5682 sh->root.u.def.value = ent->glink_offset;
5683 sh->ref_regular = 1;
5684 sh->def_regular = 1;
5685 sh->ref_regular_nonweak = 1;
5686 sh->forced_local = 1;
5687 sh->non_elf = 0;
5688 }
5689 return TRUE;
5690}
5691
3b36f7e6
AM
5692/* Allocate NEED contiguous space in .got, and return the offset.
5693 Handles allocation of the got header when crossing 32k. */
5694
5695static bfd_vma
5696allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5697{
5698 bfd_vma where;
4a3dc543 5699 unsigned int max_before_header;
3b36f7e6 5700
4a3dc543 5701 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB
5702 {
5703 where = htab->got->size;
5704 htab->got->size += need;
5705 }
3b36f7e6
AM
5706 else
5707 {
4a3dc543
RS
5708 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5709 if (need <= htab->got_gap)
3b36f7e6 5710 {
4a3dc543
RS
5711 where = max_before_header - htab->got_gap;
5712 htab->got_gap -= need;
5713 }
5714 else
5715 {
5716 if (htab->got->size + need > max_before_header
5717 && htab->got->size <= max_before_header)
5718 {
5719 htab->got_gap = max_before_header - htab->got->size;
5720 htab->got->size = max_before_header + htab->got_header_size;
5721 }
5722 where = htab->got->size;
5723 htab->got->size += need;
3b36f7e6 5724 }
3b36f7e6
AM
5725 }
5726 return where;
5727}
5728
25dbc73a 5729/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5730
b34976b6 5731static bfd_boolean
25dbc73a 5732allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5733{
25dbc73a
AM
5734 struct bfd_link_info *info = inf;
5735 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5736 struct ppc_elf_link_hash_table *htab;
6061a67d 5737 struct elf_dyn_relocs *p;
252b5132 5738
25dbc73a 5739 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5740 return TRUE;
252b5132 5741
7619e7c7 5742 htab = ppc_elf_hash_table (info);
e054468f
AM
5743 if (htab->elf.dynamic_sections_created
5744 || h->type == STT_GNU_IFUNC)
252b5132 5745 {
a6aa5195
AM
5746 struct plt_entry *ent;
5747 bfd_boolean doneone = FALSE;
28e99bb6 5748 bfd_vma plt_offset = 0, glink_offset = 0;
e054468f 5749 bfd_boolean dyn;
28e99bb6 5750
a6aa5195
AM
5751 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5752 if (ent->plt.refcount > 0)
5753 {
5754 /* Make sure this symbol is output as a dynamic symbol. */
5755 if (h->dynindx == -1
e054468f
AM
5756 && !h->forced_local
5757 && !h->def_regular
5758 && htab->elf.dynamic_sections_created)
a6aa5195
AM
5759 {
5760 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5761 return FALSE;
5762 }
252b5132 5763
e054468f 5764 dyn = htab->elf.dynamic_sections_created;
a6aa5195 5765 if (info->shared
e054468f
AM
5766 || h->type == STT_GNU_IFUNC
5767 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
a6aa5195
AM
5768 {
5769 asection *s = htab->plt;
25f23106 5770 if (!dyn || h->dynindx == -1)
e054468f 5771 s = htab->iplt;
7619e7c7 5772
25f23106 5773 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
a6aa5195 5774 {
a6aa5195 5775 if (!doneone)
28e99bb6
AM
5776 {
5777 plt_offset = s->size;
5778 s->size += 4;
5779 }
5780 ent->plt.offset = plt_offset;
d7128ce4 5781
a6aa5195 5782 s = htab->glink;
a877a2b6 5783 if (!doneone || info->shared)
28e99bb6
AM
5784 {
5785 glink_offset = s->size;
5786 s->size += GLINK_ENTRY_SIZE;
a7f2871e 5787 if (h == htab->tls_get_addr
5446cbdf 5788 && !htab->params->no_tls_get_addr_opt)
a7f2871e 5789 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
28e99bb6
AM
5790 }
5791 if (!doneone
5792 && !info->shared
625af618 5793 && h->def_dynamic
a6aa5195
AM
5794 && !h->def_regular)
5795 {
5796 h->root.u.def.section = s;
28e99bb6 5797 h->root.u.def.value = glink_offset;
a6aa5195 5798 }
28e99bb6 5799 ent->glink_offset = glink_offset;
0ba07910 5800
5446cbdf 5801 if (htab->params->emit_stub_syms
ac39eb42 5802 && !add_stub_sym (ent, h, info))
0ba07910 5803 return FALSE;
a6aa5195
AM
5804 }
5805 else
5806 {
a6aa5195
AM
5807 if (!doneone)
5808 {
28e99bb6
AM
5809 /* If this is the first .plt entry, make room
5810 for the special first entry. */
5811 if (s->size == 0)
9d8504b1 5812 s->size += htab->plt_initial_entry_size;
28e99bb6
AM
5813
5814 /* The PowerPC PLT is actually composed of two
5815 parts, the first part is 2 words (for a load
5816 and a jump), and then there is a remaining
5817 word available at the end. */
9d8504b1
PB
5818 plt_offset = (htab->plt_initial_entry_size
5819 + (htab->plt_slot_size
5820 * ((s->size
5821 - htab->plt_initial_entry_size)
5822 / htab->plt_entry_size)));
28e99bb6
AM
5823
5824 /* If this symbol is not defined in a regular
5825 file, and we are not generating a shared
5b914448 5826 library, then set the symbol to this location
de972ffa
AM
5827 in the .plt. This is to avoid text
5828 relocations, and is required to make
28e99bb6
AM
5829 function pointers compare as equal between
5830 the normal executable and the shared library. */
5831 if (! info->shared
625af618 5832 && h->def_dynamic
28e99bb6
AM
5833 && !h->def_regular)
5834 {
5835 h->root.u.def.section = s;
5836 h->root.u.def.value = plt_offset;
5837 }
5838
9d8504b1
PB
5839 /* Make room for this entry. */
5840 s->size += htab->plt_entry_size;
5841 /* After the 8192nd entry, room for two entries
5842 is allocated. */
4a3dc543 5843 if (htab->plt_type == PLT_OLD
9d8504b1
PB
5844 && (s->size - htab->plt_initial_entry_size)
5845 / htab->plt_entry_size
5846 > PLT_NUM_SINGLE_ENTRIES)
5847 s->size += htab->plt_entry_size;
a6aa5195 5848 }
28e99bb6 5849 ent->plt.offset = plt_offset;
a6aa5195 5850 }
25dbc73a 5851
a6aa5195
AM
5852 /* We also need to make an entry in the .rela.plt section. */
5853 if (!doneone)
5854 {
25f23106
AM
5855 if (!htab->elf.dynamic_sections_created
5856 || h->dynindx == -1)
e054468f
AM
5857 htab->reliplt->size += sizeof (Elf32_External_Rela);
5858 else
9d8504b1 5859 {
e054468f
AM
5860 htab->relplt->size += sizeof (Elf32_External_Rela);
5861
5862 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5863 {
e054468f
AM
5864 /* Allocate space for the unloaded relocations. */
5865 if (!info->shared
5866 && htab->elf.dynamic_sections_created)
9d8504b1 5867 {
e054468f
AM
5868 if (ent->plt.offset
5869 == (bfd_vma) htab->plt_initial_entry_size)
5870 {
5871 htab->srelplt2->size
5872 += (sizeof (Elf32_External_Rela)
5873 * VXWORKS_PLTRESOLVE_RELOCS);
5874 }
5875
9d8504b1 5876 htab->srelplt2->size
e054468f
AM
5877 += (sizeof (Elf32_External_Rela)
5878 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
9d8504b1
PB
5879 }
5880
e054468f
AM
5881 /* Every PLT entry has an associated GOT entry in
5882 .got.plt. */
5883 htab->sgotplt->size += 4;
9d8504b1 5884 }
9d8504b1 5885 }
a6aa5195
AM
5886 doneone = TRUE;
5887 }
5888 }
5889 else
5890 ent->plt.offset = (bfd_vma) -1;
a6aa5195 5891 }
2ce859a1
AM
5892 else
5893 ent->plt.offset = (bfd_vma) -1;
5894
5895 if (!doneone)
5896 {
5897 h->plt.plist = NULL;
5898 h->needs_plt = 0;
5899 }
25dbc73a
AM
5900 }
5901 else
5902 {
a6aa5195 5903 h->plt.plist = NULL;
25dbc73a
AM
5904 h->needs_plt = 0;
5905 }
5906
5907 eh = (struct ppc_elf_link_hash_entry *) h;
5908 if (eh->elf.got.refcount > 0)
5909 {
d6e14abc
AM
5910 bfd_boolean dyn;
5911 unsigned int need;
5912
25dbc73a
AM
5913 /* Make sure this symbol is output as a dynamic symbol. */
5914 if (eh->elf.dynindx == -1
b099ab9f 5915 && !eh->elf.forced_local
25f23106 5916 && eh->elf.type != STT_GNU_IFUNC
b099ab9f 5917 && htab->elf.dynamic_sections_created)
25dbc73a
AM
5918 {
5919 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 5920 return FALSE;
25dbc73a 5921 }
252b5132 5922
d6e14abc
AM
5923 need = 0;
5924 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5925 {
d6e14abc 5926 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5927 {
d6e14abc
AM
5928 if (!eh->elf.def_dynamic)
5929 /* We'll just use htab->tlsld_got.offset. This should
5930 always be the case. It's a little odd if we have
5931 a local dynamic reloc against a non-local symbol. */
5932 htab->tlsld_got.refcount += 1;
5933 else
3b36f7e6 5934 need += 8;
252b5132 5935 }
d6e14abc
AM
5936 if ((eh->tls_mask & TLS_GD) != 0)
5937 need += 8;
5938 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5939 need += 4;
5940 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5941 need += 4;
d6e14abc
AM
5942 }
5943 else
5944 need += 4;
5945 if (need == 0)
5946 eh->elf.got.offset = (bfd_vma) -1;
5947 else
5948 {
3b36f7e6 5949 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM
5950 dyn = htab->elf.dynamic_sections_created;
5951 if ((info->shared
5952 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5953 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5954 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 5955 {
91e21fb7 5956 asection *rsec = htab->relgot;
0bed072f
AM
5957
5958 if (eh->elf.type == STT_GNU_IFUNC)
5959 rsec = htab->reliplt;
3b36f7e6
AM
5960 /* All the entries we allocated need relocs.
5961 Except LD only needs one. */
d6e14abc
AM
5962 if ((eh->tls_mask & TLS_LD) != 0
5963 && eh->elf.def_dynamic)
3b36f7e6 5964 need -= 4;
25f23106 5965 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 5966 }
25dbc73a
AM
5967 }
5968 }
5969 else
5970 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5971
b099ab9f 5972 if (eh->dyn_relocs == NULL
de972ffa 5973 || !htab->elf.dynamic_sections_created)
25dbc73a 5974 return TRUE;
252b5132 5975
25dbc73a
AM
5976 /* In the shared -Bsymbolic case, discard space allocated for
5977 dynamic pc-relative relocs against symbols which turn out to be
5978 defined in regular objects. For the normal shared case, discard
5979 space for relocs that have become local due to symbol visibility
5980 changes. */
5981
5982 if (info->shared)
5983 {
5984 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5985 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
5986 generated via assembly. We want calls to protected symbols to
5987 resolve directly to the function rather than going via the plt.
5988 If people want function pointer comparisons to work as expected
5989 then they should avoid writing weird assembly. */
5990 if (SYMBOL_CALLS_LOCAL (info, h))
5991 {
6061a67d 5992 struct elf_dyn_relocs **pp;
25dbc73a
AM
5993
5994 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5995 {
25dbc73a
AM
5996 p->count -= p->pc_count;
5997 p->pc_count = 0;
5998 if (p->count == 0)
5999 *pp = p->next;
6000 else
6001 pp = &p->next;
252b5132 6002 }
25dbc73a 6003 }
252b5132 6004
3348747a
NS
6005 if (htab->is_vxworks)
6006 {
6061a67d 6007 struct elf_dyn_relocs **pp;
3348747a
NS
6008
6009 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6010 {
6011 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6012 *pp = p->next;
6013 else
6014 pp = &p->next;
6015 }
6016 }
6017
89200bf8
AM
6018 /* Discard relocs on undefined symbols that must be local. */
6019 if (eh->dyn_relocs != NULL
6020 && h->root.type == bfd_link_hash_undefined
6021 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6022 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6023 eh->dyn_relocs = NULL;
6024
25dbc73a
AM
6025 /* Also discard relocs on undefined weak syms with non-default
6026 visibility. */
cab87ef9
AM
6027 if (eh->dyn_relocs != NULL
6028 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 6029 {
dfbb6ac9
AM
6030 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6031 eh->dyn_relocs = NULL;
6032
6033 /* Make sure undefined weak symbols are output as a dynamic
6034 symbol in PIEs. */
6035 else if (h->dynindx == -1
e054468f
AM
6036 && !h->forced_local
6037 && !h->def_regular)
dfbb6ac9
AM
6038 {
6039 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6040 return FALSE;
6041 }
25dbc73a
AM
6042 }
6043 }
6044 else if (ELIMINATE_COPY_RELOCS)
6045 {
6046 /* For the non-shared case, discard space for relocs against
6047 symbols which turn out to need copy relocs or are not
6048 dynamic. */
7619e7c7 6049
25dbc73a 6050 if (!h->non_got_ref
25dbc73a
AM
6051 && !h->def_regular)
6052 {
6053 /* Make sure this symbol is output as a dynamic symbol.
6054 Undefined weak syms won't yet be marked as dynamic. */
6055 if (h->dynindx == -1
25f23106 6056 && !h->forced_local)
25dbc73a
AM
6057 {
6058 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6059 return FALSE;
6060 }
7619e7c7 6061
25dbc73a
AM
6062 /* If that succeeded, we know we'll be keeping all the
6063 relocs. */
6064 if (h->dynindx != -1)
6065 goto keep;
6066 }
252b5132 6067
25dbc73a 6068 eh->dyn_relocs = NULL;
252b5132 6069
25dbc73a
AM
6070 keep: ;
6071 }
252b5132 6072
25dbc73a
AM
6073 /* Finally, allocate space. */
6074 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6075 {
6076 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6077 if (eh->elf.type == STT_GNU_IFUNC)
25f23106 6078 sreloc = htab->reliplt;
25dbc73a
AM
6079 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6080 }
252b5132 6081
25dbc73a
AM
6082 return TRUE;
6083}
7619e7c7 6084
625af618
AM
6085/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6086 read-only sections. */
7619e7c7 6087
25dbc73a 6088static bfd_boolean
625af618 6089maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 6090{
25dbc73a
AM
6091 if (h->root.type == bfd_link_hash_indirect)
6092 return TRUE;
252b5132 6093
625af618 6094 if (readonly_dynrelocs (h))
25dbc73a 6095 {
625af618 6096 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 6097
625af618
AM
6098 /* Not an error, just cut short the traversal. */
6099 return FALSE;
25dbc73a
AM
6100 }
6101 return TRUE;
6102}
6103
6177242a
AM
6104static const unsigned char glink_eh_frame_cie[] =
6105{
6106 0, 0, 0, 16, /* length. */
6107 0, 0, 0, 0, /* id. */
6108 1, /* CIE version. */
6109 'z', 'R', 0, /* Augmentation string. */
6110 4, /* Code alignment. */
6111 0x7c, /* Data alignment. */
6112 65, /* RA reg. */
6113 1, /* Augmentation size. */
6114 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6115 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6116};
6117
25dbc73a
AM
6118/* Set the sizes of the dynamic sections. */
6119
6120static bfd_boolean
6121ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6122 struct bfd_link_info *info)
6123{
6124 struct ppc_elf_link_hash_table *htab;
6125 asection *s;
6126 bfd_boolean relocs;
6127 bfd *ibfd;
7fce784e 6128
252b5132 6129#ifdef DEBUG
25dbc73a 6130 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6131#endif
252b5132 6132
25dbc73a
AM
6133 htab = ppc_elf_hash_table (info);
6134 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6135
25dbc73a
AM
6136 if (elf_hash_table (info)->dynamic_sections_created)
6137 {
6138 /* Set the contents of the .interp section to the interpreter. */
6139 if (info->executable)
6140 {
3d4d4302 6141 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6142 BFD_ASSERT (s != NULL);
6143 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6144 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6145 }
6146 }
252b5132 6147
4a3dc543 6148 if (htab->plt_type == PLT_OLD)
d7128ce4 6149 htab->got_header_size = 16;
4a3dc543 6150 else if (htab->plt_type == PLT_NEW)
d7128ce4 6151 htab->got_header_size = 12;
252b5132 6152
25dbc73a
AM
6153 /* Set up .got offsets for local syms, and space for local dynamic
6154 relocs. */
6155 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6156 {
6157 bfd_signed_vma *local_got;
6158 bfd_signed_vma *end_local_got;
e054468f
AM
6159 struct plt_entry **local_plt;
6160 struct plt_entry **end_local_plt;
25dbc73a
AM
6161 char *lgot_masks;
6162 bfd_size_type locsymcount;
6163 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6164
0c8d6e5c 6165 if (!is_ppc_elf (ibfd))
25dbc73a 6166 continue;
7fce784e 6167
25dbc73a
AM
6168 for (s = ibfd->sections; s != NULL; s = s->next)
6169 {
f95f8542 6170 struct ppc_dyn_relocs *p;
252b5132 6171
f95f8542 6172 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6173 elf_section_data (s)->local_dynrel);
6174 p != NULL;
6175 p = p->next)
6176 {
6177 if (!bfd_is_abs_section (p->sec)
6178 && bfd_is_abs_section (p->sec->output_section))
6179 {
6180 /* Input section has been discarded, either because
6181 it is a copy of a linkonce section or due to
6182 linker script /DISCARD/, so we'll be discarding
6183 the relocs too. */
7fce784e 6184 }
3348747a
NS
6185 else if (htab->is_vxworks
6186 && strcmp (p->sec->output_section->name,
6187 ".tls_vars") == 0)
6188 {
6189 /* Relocations in vxworks .tls_vars sections are
6190 handled specially by the loader. */
6191 }
25dbc73a 6192 else if (p->count != 0)
7fce784e 6193 {
25f23106 6194 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6195 if (p->ifunc)
25f23106
AM
6196 sreloc = htab->reliplt;
6197 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6198 if ((p->sec->output_section->flags
6199 & (SEC_READONLY | SEC_ALLOC))
6200 == (SEC_READONLY | SEC_ALLOC))
6201 info->flags |= DF_TEXTREL;
7fce784e 6202 }
252b5132 6203 }
252b5132 6204 }
252b5132 6205
25dbc73a
AM
6206 local_got = elf_local_got_refcounts (ibfd);
6207 if (!local_got)
6208 continue;
252b5132 6209
0ffa91dd 6210 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6211 locsymcount = symtab_hdr->sh_info;
6212 end_local_got = local_got + locsymcount;
e054468f
AM
6213 local_plt = (struct plt_entry **) end_local_got;
6214 end_local_plt = local_plt + locsymcount;
6215 lgot_masks = (char *) end_local_plt;
91d6fa6a 6216
25dbc73a
AM
6217 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6218 if (*local_got > 0)
6219 {
d6e14abc
AM
6220 unsigned int need = 0;
6221 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6222 {
d6e14abc
AM
6223 if ((*lgot_masks & TLS_GD) != 0)
6224 need += 8;
6225 if ((*lgot_masks & TLS_LD) != 0)
6226 htab->tlsld_got.refcount += 1;
6227 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6228 need += 4;
6229 if ((*lgot_masks & TLS_DTPREL) != 0)
6230 need += 4;
25dbc73a 6231 }
d6e14abc
AM
6232 else
6233 need += 4;
6234 if (need == 0)
6235 *local_got = (bfd_vma) -1;
25dbc73a
AM
6236 else
6237 {
3b36f7e6 6238 *local_got = allocate_got (htab, need);
25dbc73a 6239 if (info->shared)
0bed072f
AM
6240 {
6241 asection *srel = htab->relgot;
6242 if ((*lgot_masks & PLT_IFUNC) != 0)
6243 srel = htab->reliplt;
6244 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6245 }
25dbc73a
AM
6246 }
6247 }
6248 else
6249 *local_got = (bfd_vma) -1;
e054468f
AM
6250
6251 if (htab->is_vxworks)
6252 continue;
6253
6254 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6255 for (; local_plt < end_local_plt; ++local_plt)
6256 {
6257 struct plt_entry *ent;
6258 bfd_boolean doneone = FALSE;
6259 bfd_vma plt_offset = 0, glink_offset = 0;
6260
6261 for (ent = *local_plt; ent != NULL; ent = ent->next)
6262 if (ent->plt.refcount > 0)
6263 {
91d6fa6a 6264 s = htab->iplt;
e054468f
AM
6265
6266 if (!doneone)
6267 {
6268 plt_offset = s->size;
6269 s->size += 4;
6270 }
6271 ent->plt.offset = plt_offset;
6272
6273 s = htab->glink;
a877a2b6 6274 if (!doneone || info->shared)
e054468f
AM
6275 {
6276 glink_offset = s->size;
6277 s->size += GLINK_ENTRY_SIZE;
6278 }
6279 ent->glink_offset = glink_offset;
6280
6281 if (!doneone)
6282 {
25f23106 6283 htab->reliplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6284 doneone = TRUE;
6285 }
6286 }
6287 else
6288 ent->plt.offset = (bfd_vma) -1;
6289 }
25dbc73a 6290 }
252b5132 6291
b7fcf6f6
AM
6292 /* Allocate space for global sym dynamic relocs. */
6293 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6294
3b36f7e6
AM
6295 if (htab->tlsld_got.refcount > 0)
6296 {
6297 htab->tlsld_got.offset = allocate_got (htab, 8);
6298 if (info->shared)
6299 htab->relgot->size += sizeof (Elf32_External_Rela);
6300 }
6301 else
6302 htab->tlsld_got.offset = (bfd_vma) -1;
6303
4a3dc543 6304 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6305 {
6306 unsigned int g_o_t = 32768;
6307
4d962050
AM
6308 /* If we haven't allocated the header, do so now. When we get here,
6309 for old plt/got the got size will be 0 to 32764 (not allocated),
6310 or 32780 to 65536 (header allocated). For new plt/got, the
6311 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM
6312 if (htab->got->size <= 32768)
6313 {
6314 g_o_t = htab->got->size;
4a3dc543 6315 if (htab->plt_type == PLT_OLD)
4d962050 6316 g_o_t += 4;
3b36f7e6
AM
6317 htab->got->size += htab->got_header_size;
6318 }
3b36f7e6
AM
6319
6320 htab->elf.hgot->root.u.def.value = g_o_t;
6321 }
bd6c6e2b
AM
6322 if (info->shared)
6323 {
6324 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6325 if (sda != NULL
6326 && !(sda->root.type == bfd_link_hash_defined
6327 || sda->root.type == bfd_link_hash_defweak))
6328 {
6329 sda->root.type = bfd_link_hash_defined;
6330 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6331 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6332 }
6333 }
3b36f7e6 6334
e054468f
AM
6335 if (htab->glink != NULL
6336 && htab->glink->size != 0
6337 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6338 {
6339 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM
6340 /* Space for the branch table. */
6341 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6342 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6343 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6344 ? 63 : 15);
d7128ce4 6345 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6346
5446cbdf 6347 if (htab->params->emit_stub_syms)
0ba07910
AM
6348 {
6349 struct elf_link_hash_entry *sh;
6350 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6351 TRUE, FALSE, FALSE);
6352 if (sh == NULL)
6353 return FALSE;
6354 if (sh->root.type == bfd_link_hash_new)
6355 {
6356 sh->root.type = bfd_link_hash_defined;
6357 sh->root.u.def.section = htab->glink;
6358 sh->root.u.def.value = htab->glink_pltresolve;
6359 sh->ref_regular = 1;
6360 sh->def_regular = 1;
6361 sh->ref_regular_nonweak = 1;
6362 sh->forced_local = 1;
6363 sh->non_elf = 0;
6364 }
6365 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6366 TRUE, FALSE, FALSE);
6367 if (sh == NULL)
6368 return FALSE;
6369 if (sh->root.type == bfd_link_hash_new)
6370 {
6371 sh->root.type = bfd_link_hash_defined;
6372 sh->root.u.def.section = htab->glink;
6373 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6374 sh->ref_regular = 1;
6375 sh->def_regular = 1;
6376 sh->ref_regular_nonweak = 1;
6377 sh->forced_local = 1;
6378 sh->non_elf = 0;
6379 }
6380 }
d7128ce4
AM
6381 }
6382
6177242a
AM
6383 if (htab->glink != NULL
6384 && htab->glink->size != 0
6385 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6386 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6387 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6388 {
6389 s = htab->glink_eh_frame;
6390 s->size = sizeof (glink_eh_frame_cie) + 20;
6391 if (info->shared)
6392 {
6393 s->size += 4;
6394 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6395 s->size += 4;
6396 }
6397 }
6398
25dbc73a
AM
6399 /* We've now determined the sizes of the various dynamic sections.
6400 Allocate memory for them. */
6401 relocs = FALSE;
6402 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6403 {
9d8504b1
PB
6404 bfd_boolean strip_section = TRUE;
6405
25dbc73a
AM
6406 if ((s->flags & SEC_LINKER_CREATED) == 0)
6407 continue;
252b5132 6408
25dbc73a 6409 if (s == htab->plt
e054468f 6410 || s == htab->got)
25dbc73a 6411 {
9d8504b1
PB
6412 /* We'd like to strip these sections if they aren't needed, but if
6413 we've exported dynamic symbols from them we must leave them.
6414 It's too late to tell BFD to get rid of the symbols. */
e054468f 6415 if (htab->elf.hplt != NULL)
9d8504b1 6416 strip_section = FALSE;
25dbc73a
AM
6417 /* Strip this section if we don't need it; see the
6418 comment below. */
6419 }
e054468f
AM
6420 else if (s == htab->iplt
6421 || s == htab->glink
6177242a 6422 || s == htab->glink_eh_frame
e054468f
AM
6423 || s == htab->sgotplt
6424 || s == htab->sbss
6425 || s == htab->dynbss
6426 || s == htab->dynsbss
6427 || s == htab->sdata[0].section
c9a2f333 6428 || s == htab->sdata[1].section)
25dbc73a 6429 {
c9a2f333 6430 /* Strip these too. */
25dbc73a 6431 }
a0f49396
NC
6432 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6433 ".rela"))
25dbc73a 6434 {
c456f082 6435 if (s->size != 0)
25dbc73a
AM
6436 {
6437 /* Remember whether there are any relocation sections. */
6438 relocs = TRUE;
252b5132 6439
25dbc73a
AM
6440 /* We use the reloc_count field as a counter if we need
6441 to copy relocs into the output file. */
6442 s->reloc_count = 0;
252b5132
RH
6443 }
6444 }
25dbc73a
AM
6445 else
6446 {
6447 /* It's not one of our sections, so don't allocate space. */
6448 continue;
6449 }
252b5132 6450
9d8504b1 6451 if (s->size == 0 && strip_section)
25dbc73a 6452 {
c456f082
AM
6453 /* If we don't need this section, strip it from the
6454 output file. This is mostly to handle .rela.bss and
6455 .rela.plt. We must create both sections in
6456 create_dynamic_sections, because they must be created
6457 before the linker maps input sections to output
6458 sections. The linker does that before
6459 adjust_dynamic_symbol is called, and it is that
6460 function which decides whether anything needs to go
6461 into these sections. */
8423293d 6462 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6463 continue;
6464 }
7fce784e 6465
d7128ce4 6466 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6467 continue;
6468
25dbc73a
AM
6469 /* Allocate memory for the section contents. */
6470 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6471 if (s->contents == NULL)
6472 return FALSE;
6473 }
252b5132 6474
25dbc73a 6475 if (htab->elf.dynamic_sections_created)
7619e7c7 6476 {
25dbc73a
AM
6477 /* Add some entries to the .dynamic section. We fill in the
6478 values later, in ppc_elf_finish_dynamic_sections, but we
6479 must add the entries now so that we get the correct size for
6480 the .dynamic section. The DT_DEBUG entry is filled in by the
6481 dynamic linker and used by the debugger. */
6482#define add_dynamic_entry(TAG, VAL) \
6483 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6484
25dbc73a 6485 if (info->executable)
7619e7c7 6486 {
25dbc73a
AM
6487 if (!add_dynamic_entry (DT_DEBUG, 0))
6488 return FALSE;
7619e7c7
AM
6489 }
6490
25dbc73a 6491 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 6492 {
25dbc73a
AM
6493 if (!add_dynamic_entry (DT_PLTGOT, 0)
6494 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6495 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6496 || !add_dynamic_entry (DT_JMPREL, 0))
6497 return FALSE;
6498 }
7619e7c7 6499
c7e17e05
AM
6500 if (htab->plt_type == PLT_NEW
6501 && htab->glink != NULL
6502 && htab->glink->size != 0)
d7128ce4 6503 {
1fe44d79 6504 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6505 return FALSE;
5446cbdf 6506 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6507 && htab->tls_get_addr != NULL
6508 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6509 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6510 return FALSE;
d7128ce4
AM
6511 }
6512
25dbc73a
AM
6513 if (relocs)
6514 {
6515 if (!add_dynamic_entry (DT_RELA, 0)
6516 || !add_dynamic_entry (DT_RELASZ, 0)
6517 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6518 return FALSE;
6519 }
7619e7c7 6520
25dbc73a
AM
6521 /* If any dynamic relocs apply to a read-only section, then we
6522 need a DT_TEXTREL entry. */
6523 if ((info->flags & DF_TEXTREL) == 0)
625af618 6524 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6525 info);
7619e7c7 6526
25dbc73a
AM
6527 if ((info->flags & DF_TEXTREL) != 0)
6528 {
6529 if (!add_dynamic_entry (DT_TEXTREL, 0))
6530 return FALSE;
7619e7c7 6531 }
7a2b07ff
NS
6532 if (htab->is_vxworks
6533 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6534 return FALSE;
6535 }
25dbc73a
AM
6536#undef add_dynamic_entry
6537
7e01508c
AM
6538 if (htab->glink_eh_frame != NULL
6539 && htab->glink_eh_frame->contents != NULL)
6540 {
6541 unsigned char *p = htab->glink_eh_frame->contents;
6542 bfd_vma val;
6543
6544 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6545 /* CIE length (rewrite in case little-endian). */
6546 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6547 p += sizeof (glink_eh_frame_cie);
6548 /* FDE length. */
6549 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6550 bfd_put_32 (htab->elf.dynobj, val, p);
6551 p += 4;
6552 /* CIE pointer. */
6553 val = p - htab->glink_eh_frame->contents;
6554 bfd_put_32 (htab->elf.dynobj, val, p);
6555 p += 4;
6556 /* Offset to .glink. Set later. */
6557 p += 4;
6558 /* .glink size. */
6559 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6560 p += 4;
6561 /* Augmentation. */
6562 p += 1;
6563
6564 if (info->shared
6565 && htab->elf.dynamic_sections_created)
6566 {
6567 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6568 if (adv < 64)
6569 *p++ = DW_CFA_advance_loc + adv;
6570 else if (adv < 256)
6571 {
6572 *p++ = DW_CFA_advance_loc1;
6573 *p++ = adv;
6574 }
6575 else if (adv < 65536)
6576 {
6577 *p++ = DW_CFA_advance_loc2;
6578 bfd_put_16 (htab->elf.dynobj, adv, p);
6579 p += 2;
6580 }
6581 else
6582 {
6583 *p++ = DW_CFA_advance_loc4;
6584 bfd_put_32 (htab->elf.dynobj, adv, p);
6585 p += 4;
6586 }
6587 *p++ = DW_CFA_register;
6588 *p++ = 65;
6589 p++;
6590 *p++ = DW_CFA_advance_loc + 4;
6591 *p++ = DW_CFA_restore_extended;
6592 *p++ = 65;
6593 }
6594 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6595 == htab->glink_eh_frame->size);
6596 }
6597
7619e7c7
AM
6598 return TRUE;
6599}
0eb4a168
AM
6600
6601/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6602
6603static bfd_boolean
6604ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6605{
6606 if (h->plt.plist != NULL
6607 && !h->def_regular
6608 && (!h->pointer_equality_needed
6609 || !h->ref_regular_nonweak))
6610 return FALSE;
6611
6612 return _bfd_elf_hash_symbol (h);
6613}
25dbc73a
AM
6614\f
6615#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6616
01017ef8
NS
6617/* Relaxation trampolines. r12 is available for clobbering (r11, is
6618 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6619static const int shared_stub_entry[] =
6620 {
6621 0x7c0802a6, /* mflr 0 */
6622 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6623 0x7d8802a6, /* mflr 12 */
6624 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6625 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6626 0x7c0803a6, /* mtlr 0 */
01017ef8 6627 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6628 0x4e800420, /* bctr */
6629 };
6630
6631static const int stub_entry[] =
6632 {
01017ef8
NS
6633 0x3d800000, /* lis 12,xxx@ha */
6634 0x398c0000, /* addi 12,12,xxx@l */
6635 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6636 0x4e800420, /* bctr */
6637 };
6638
5446cbdf
AM
6639struct ppc_elf_relax_info
6640{
6641 unsigned int workaround_size;
6642};
6643
6644/* This function implements long branch trampolines, and the ppc476
6645 icache bug workaround. Any section needing trampolines or patch
6646 space for the workaround has its size extended so that we can
53291d1f 6647 add trampolines at the end of the section. */
5446cbdf 6648
25dbc73a
AM
6649static bfd_boolean
6650ppc_elf_relax_section (bfd *abfd,
6651 asection *isec,
6652 struct bfd_link_info *link_info,
6653 bfd_boolean *again)
6654{
6655 struct one_fixup
6656 {
6657 struct one_fixup *next;
6658 asection *tsec;
01017ef8
NS
6659 /* Final link, can use the symbol offset. For a
6660 relocatable link we use the symbol's index. */
25dbc73a
AM
6661 bfd_vma toff;
6662 bfd_vma trampoff;
6663 };
7619e7c7 6664
25dbc73a
AM
6665 Elf_Internal_Shdr *symtab_hdr;
6666 bfd_byte *contents = NULL;
6667 Elf_Internal_Sym *isymbuf = NULL;
6668 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6669 Elf_Internal_Rela *irel, *irelend = NULL;
25dbc73a 6670 struct one_fixup *fixups = NULL;
5446cbdf 6671 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6672 unsigned changes = 0;
5446cbdf 6673 bfd_boolean workaround_change;
d7128ce4 6674 struct ppc_elf_link_hash_table *htab;
5446cbdf 6675 bfd_size_type trampbase, trampoff, newsize;
a6aa5195 6676 asection *got2;
50248c89 6677 bfd_boolean maybe_pasted;
7619e7c7 6678
25dbc73a 6679 *again = FALSE;
7619e7c7 6680
5446cbdf 6681 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6682 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6683 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6684 || (isec->flags & SEC_LINKER_CREATED) != 0
6685 || isec->size < 4)
25dbc73a 6686 return TRUE;
7619e7c7 6687
c8a1f254
NS
6688 /* We cannot represent the required PIC relocs in the output, so don't
6689 do anything. The linker doesn't support mixing -shared and -r
6690 anyway. */
6691 if (link_info->relocatable && link_info->shared)
795bc6b3 6692 return TRUE;
5b914448 6693
5446cbdf
AM
6694 htab = ppc_elf_hash_table (link_info);
6695 if (htab == NULL)
6696 return TRUE;
6697
6698 isec->size = (isec->size + 3) & -4;
6699 if (isec->rawsize == 0)
6700 isec->rawsize = isec->size;
6701 trampbase = isec->size;
6702
53291d1f
AM
6703 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6704 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6705 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6706
5446cbdf
AM
6707 if (htab->params->ppc476_workaround)
6708 {
6709 if (elf_section_data (isec)->sec_info == NULL)
6710 {
5446cbdf
AM
6711 elf_section_data (isec)->sec_info
6712 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6713 if (elf_section_data (isec)->sec_info == NULL)
6714 return FALSE;
6715 }
6716 relax_info = elf_section_data (isec)->sec_info;
6717 trampbase -= relax_info->workaround_size;
6718 }
6719
50248c89
AM
6720 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6721 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6722 /* Space for a branch around any trampolines. */
5446cbdf
AM
6723 trampoff = trampbase;
6724 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6725 trampoff += 4;
7619e7c7 6726
0ffa91dd 6727 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 6728
5446cbdf 6729 if (htab->params->branch_trampolines)
7619e7c7 6730 {
5446cbdf
AM
6731 /* Get a copy of the native relocations. */
6732 if (isec->reloc_count != 0)
25dbc73a 6733 {
5446cbdf
AM
6734 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6735 link_info->keep_memory);
6736 if (internal_relocs == NULL)
6737 goto error_return;
25dbc73a 6738 }
7619e7c7 6739
5446cbdf
AM
6740 got2 = bfd_get_section_by_name (abfd, ".got2");
6741
6742 irelend = internal_relocs + isec->reloc_count;
6743 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 6744 {
5446cbdf
AM
6745 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6746 bfd_vma toff, roff;
6747 asection *tsec;
6748 struct one_fixup *f;
6749 size_t insn_offset = 0;
6750 bfd_vma max_branch_offset, val;
6751 bfd_byte *hit_addr;
6752 unsigned long t0;
6753 struct elf_link_hash_entry *h;
6754 struct plt_entry **plist;
6755 unsigned char sym_type;
6756
6757 switch (r_type)
6758 {
6759 case R_PPC_REL24:
6760 case R_PPC_LOCAL24PC:
6761 case R_PPC_PLTREL24:
6762 max_branch_offset = 1 << 25;
6763 break;
6764
6765 case R_PPC_REL14:
6766 case R_PPC_REL14_BRTAKEN:
6767 case R_PPC_REL14_BRNTAKEN:
6768 max_branch_offset = 1 << 15;
6769 break;
7fce784e 6770
5446cbdf
AM
6771 default:
6772 continue;
6773 }
6774
6775 /* Get the value of the symbol referred to by the reloc. */
6776 h = NULL;
6777 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 6778 {
5446cbdf
AM
6779 /* A local symbol. */
6780 Elf_Internal_Sym *isym;
6781
6782 /* Read this BFD's local symbols. */
25dbc73a 6783 if (isymbuf == NULL)
5446cbdf
AM
6784 {
6785 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6786 if (isymbuf == NULL)
6787 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6788 symtab_hdr->sh_info, 0,
6789 NULL, NULL, NULL);
6790 if (isymbuf == 0)
6791 goto error_return;
6792 }
6793 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6794 if (isym->st_shndx == SHN_UNDEF)
6795 tsec = bfd_und_section_ptr;
6796 else if (isym->st_shndx == SHN_ABS)
6797 tsec = bfd_abs_section_ptr;
6798 else if (isym->st_shndx == SHN_COMMON)
6799 tsec = bfd_com_section_ptr;
6800 else
6801 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6802
6803 toff = isym->st_value;
6804 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 6805 }
25dbc73a 6806 else
5446cbdf
AM
6807 {
6808 /* Global symbol handling. */
6809 unsigned long indx;
7fce784e 6810
5446cbdf
AM
6811 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6812 h = elf_sym_hashes (abfd)[indx];
7619e7c7 6813
5446cbdf
AM
6814 while (h->root.type == bfd_link_hash_indirect
6815 || h->root.type == bfd_link_hash_warning)
6816 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 6817
5446cbdf
AM
6818 if (h->root.type == bfd_link_hash_defined
6819 || h->root.type == bfd_link_hash_defweak)
6820 {
6821 tsec = h->root.u.def.section;
6822 toff = h->root.u.def.value;
6823 }
6824 else if (h->root.type == bfd_link_hash_undefined
6825 || h->root.type == bfd_link_hash_undefweak)
6826 {
6827 tsec = bfd_und_section_ptr;
6828 toff = link_info->relocatable ? indx : 0;
6829 }
6830 else
6831 continue;
6832
9f7552cf
AM
6833 /* If this branch is to __tls_get_addr then we may later
6834 optimise away the call. We won't be needing a long-
6835 branch stub in that case. */
6836 if (link_info->executable
6837 && !link_info->relocatable
6838 && h == htab->tls_get_addr
6839 && irel != internal_relocs)
6840 {
6841 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
6842 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
6843 unsigned int tls_mask = 0;
6844
6845 /* The previous reloc should be one of R_PPC_TLSGD or
6846 R_PPC_TLSLD, or for older object files, a reloc
6847 on the __tls_get_addr arg setup insn. Get tls
6848 mask bits from the symbol on that reloc. */
6849 if (t_symndx < symtab_hdr->sh_info)
6850 {
6851 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6852
6853 if (local_got_offsets != NULL)
6854 {
6855 struct plt_entry **local_plt = (struct plt_entry **)
6856 (local_got_offsets + symtab_hdr->sh_info);
6857 char *lgot_masks = (char *)
6858 (local_plt + symtab_hdr->sh_info);
6859 tls_mask = lgot_masks[t_symndx];
6860 }
6861 }
6862 else
6863 {
6864 struct elf_link_hash_entry *th
6865 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
6866
6867 while (th->root.type == bfd_link_hash_indirect
6868 || th->root.type == bfd_link_hash_warning)
6869 th = (struct elf_link_hash_entry *) th->root.u.i.link;
6870
6871 tls_mask
6872 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
6873 }
6874
6875 /* The mask bits tell us if the call will be
6876 optimised away. */
6877 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
6878 && (t_rtype == R_PPC_TLSGD
6879 || t_rtype == R_PPC_GOT_TLSGD16
6880 || t_rtype == R_PPC_GOT_TLSGD16_LO))
6881 continue;
6882 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
6883 && (t_rtype == R_PPC_TLSLD
6884 || t_rtype == R_PPC_GOT_TLSLD16
6885 || t_rtype == R_PPC_GOT_TLSLD16_LO))
6886 continue;
6887 }
6888
5446cbdf
AM
6889 sym_type = h->type;
6890 }
7619e7c7 6891
5446cbdf
AM
6892 /* The condition here under which we call find_plt_ent must
6893 match that in relocate_section. If we call find_plt_ent here
6894 but not in relocate_section, or vice versa, then the branch
6895 destination used here may be incorrect. */
6896 plist = NULL;
6897 if (h != NULL)
25dbc73a 6898 {
5446cbdf
AM
6899 /* We know is_branch_reloc (r_type) is true. */
6900 if (h->type == STT_GNU_IFUNC
6901 || r_type == R_PPC_PLTREL24)
6902 plist = &h->plt.plist;
25dbc73a 6903 }
5446cbdf
AM
6904 else if (sym_type == STT_GNU_IFUNC
6905 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 6906 {
5446cbdf
AM
6907 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6908 struct plt_entry **local_plt = (struct plt_entry **)
6909 (local_got_offsets + symtab_hdr->sh_info);
6910 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 6911 }
5446cbdf 6912 if (plist != NULL)
a9585d22 6913 {
5446cbdf
AM
6914 bfd_vma addend = 0;
6915 struct plt_entry *ent;
6916
6917 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6918 addend = irel->r_addend;
6919 ent = find_plt_ent (plist, got2, addend);
6920 if (ent != NULL)
a9585d22 6921 {
5446cbdf
AM
6922 if (htab->plt_type == PLT_NEW
6923 || h == NULL
6924 || !htab->elf.dynamic_sections_created
6925 || h->dynindx == -1)
6926 {
6927 tsec = htab->glink;
6928 toff = ent->glink_offset;
6929 }
6930 else
6931 {
6932 tsec = htab->plt;
6933 toff = ent->plt.offset;
6934 }
de972ffa
AM
6935 }
6936 }
de972ffa 6937
5446cbdf
AM
6938 /* If the branch and target are in the same section, you have
6939 no hope of adding stubs. We'll error out later should the
6940 branch overflow. */
6941 if (tsec == isec)
6942 continue;
25dbc73a 6943
5446cbdf
AM
6944 /* There probably isn't any reason to handle symbols in
6945 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6946 attribute for a code section, and we are only looking at
6947 branches. However, implement it correctly here as a
6948 reference for other target relax_section functions. */
6949 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
6950 {
6951 /* At this stage in linking, no SEC_MERGE symbol has been
6952 adjusted, so all references to such symbols need to be
6953 passed through _bfd_merged_section_offset. (Later, in
6954 relocate_section, all SEC_MERGE symbols *except* for
6955 section symbols have been adjusted.)
6956
6957 gas may reduce relocations against symbols in SEC_MERGE
6958 sections to a relocation against the section symbol when
6959 the original addend was zero. When the reloc is against
6960 a section symbol we should include the addend in the
6961 offset passed to _bfd_merged_section_offset, since the
6962 location of interest is the original symbol. On the
6963 other hand, an access to "sym+addend" where "sym" is not
6964 a section symbol should not include the addend; Such an
6965 access is presumed to be an offset from "sym"; The
6966 location of interest is just "sym". */
6967 if (sym_type == STT_SECTION)
6968 toff += irel->r_addend;
6969
6970 toff
6971 = _bfd_merged_section_offset (abfd, &tsec,
6972 elf_section_data (tsec)->sec_info,
6973 toff);
6974
6975 if (sym_type != STT_SECTION)
6976 toff += irel->r_addend;
6977 }
6978 /* PLTREL24 addends are special. */
6979 else if (r_type != R_PPC_PLTREL24)
25dbc73a 6980 toff += irel->r_addend;
7619e7c7 6981
5446cbdf
AM
6982 /* Attempted -shared link of non-pic code loses. */
6983 if ((!link_info->relocatable
6984 && tsec == bfd_und_section_ptr)
6985 || tsec->output_section == NULL
6986 || (tsec->owner != NULL
6987 && (tsec->owner->flags & BFD_PLUGIN) != 0))
6988 continue;
7619e7c7 6989
5446cbdf 6990 roff = irel->r_offset;
7de713b9 6991
5446cbdf
AM
6992 /* If the branch is in range, no need to do anything. */
6993 if (tsec != bfd_und_section_ptr
6994 && (!link_info->relocatable
6995 /* A relocatable link may have sections moved during
6996 final link, so do not presume they remain in range. */
6997 || tsec->output_section == isec->output_section))
6998 {
6999 bfd_vma symaddr, reladdr;
7619e7c7 7000
5446cbdf
AM
7001 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7002 reladdr = isec->output_section->vma + isec->output_offset + roff;
7003 if (symaddr - reladdr + max_branch_offset
7004 < 2 * max_branch_offset)
7005 continue;
7006 }
01017ef8 7007
5446cbdf
AM
7008 /* Look for an existing fixup to this address. */
7009 for (f = fixups; f ; f = f->next)
7010 if (f->tsec == tsec && f->toff == toff)
7011 break;
252b5132 7012
5446cbdf
AM
7013 if (f == NULL)
7014 {
7015 size_t size;
7016 unsigned long stub_rtype;
25dbc73a 7017
5446cbdf
AM
7018 val = trampoff - roff;
7019 if (val >= max_branch_offset)
7020 /* Oh dear, we can't reach a trampoline. Don't try to add
7021 one. We'll report an error later. */
7022 continue;
252b5132 7023
5446cbdf
AM
7024 if (link_info->shared)
7025 {
7026 size = 4 * ARRAY_SIZE (shared_stub_entry);
7027 insn_offset = 12;
7028 }
7029 else
7030 {
7031 size = 4 * ARRAY_SIZE (stub_entry);
7032 insn_offset = 0;
7033 }
7034 stub_rtype = R_PPC_RELAX;
7035 if (tsec == htab->plt
7036 || tsec == htab->glink)
7037 {
7038 stub_rtype = R_PPC_RELAX_PLT;
7039 if (r_type == R_PPC_PLTREL24)
7040 stub_rtype = R_PPC_RELAX_PLTREL24;
7041 }
252b5132 7042
5446cbdf
AM
7043 /* Hijack the old relocation. Since we need two
7044 relocations for this use a "composite" reloc. */
7045 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7046 stub_rtype);
7047 irel->r_offset = trampoff + insn_offset;
7048 if (r_type == R_PPC_PLTREL24
7049 && stub_rtype != R_PPC_RELAX_PLTREL24)
7050 irel->r_addend = 0;
7051
7052 /* Record the fixup so we don't do it again this section. */
7053 f = bfd_malloc (sizeof (*f));
7054 f->next = fixups;
7055 f->tsec = tsec;
7056 f->toff = toff;
7057 f->trampoff = trampoff;
7058 fixups = f;
7059
7060 trampoff += size;
7061 changes++;
25dbc73a
AM
7062 }
7063 else
7064 {
5446cbdf
AM
7065 val = f->trampoff - roff;
7066 if (val >= max_branch_offset)
7067 continue;
252b5132 7068
5446cbdf
AM
7069 /* Nop out the reloc, since we're finalizing things here. */
7070 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7071 }
252b5132 7072
5446cbdf
AM
7073 /* Get the section contents. */
7074 if (contents == NULL)
25dbc73a 7075 {
5446cbdf
AM
7076 /* Get cached copy if it exists. */
7077 if (elf_section_data (isec)->this_hdr.contents != NULL)
7078 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7079 /* Go get them off disk. */
5446cbdf 7080 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7081 goto error_return;
7082 }
252b5132 7083
5446cbdf
AM
7084 /* Fix up the existing branch to hit the trampoline. */
7085 hit_addr = contents + roff;
7086 switch (r_type)
7087 {
7088 case R_PPC_REL24:
7089 case R_PPC_LOCAL24PC:
7090 case R_PPC_PLTREL24:
7091 t0 = bfd_get_32 (abfd, hit_addr);
7092 t0 &= ~0x3fffffc;
7093 t0 |= val & 0x3fffffc;
7094 bfd_put_32 (abfd, t0, hit_addr);
7095 break;
252b5132 7096
5446cbdf
AM
7097 case R_PPC_REL14:
7098 case R_PPC_REL14_BRTAKEN:
7099 case R_PPC_REL14_BRNTAKEN:
7100 t0 = bfd_get_32 (abfd, hit_addr);
7101 t0 &= ~0xfffc;
7102 t0 |= val & 0xfffc;
7103 bfd_put_32 (abfd, t0, hit_addr);
7104 break;
7105 }
25dbc73a 7106 }
252b5132 7107
5446cbdf 7108 while (fixups != NULL)
25dbc73a
AM
7109 {
7110 struct one_fixup *f = fixups;
7111 fixups = fixups->next;
7112 free (f);
7113 }
5446cbdf 7114 }
252b5132 7115
5446cbdf
AM
7116 workaround_change = FALSE;
7117 newsize = trampoff;
795bc6b3
AM
7118 if (htab->params->ppc476_workaround
7119 && (!link_info->relocatable
7120 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7121 {
7122 bfd_vma addr, end_addr;
7123 unsigned int crossings;
795bc6b3 7124 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7125
7126 addr = isec->output_section->vma + isec->output_offset;
7127 end_addr = addr + trampoff - 1;
7128 addr &= -pagesize;
795bc6b3 7129 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7130 if (crossings != 0)
7131 {
7132 /* Keep space aligned, to ensure the patch code itself does
7133 not cross a page. Don't decrease size calculated on a
7134 previous pass as otherwise we might never settle on a layout. */
7135 newsize = 15 - (end_addr & 15);
7136 newsize += crossings * 16;
7137 if (relax_info->workaround_size < newsize)
7138 {
7139 relax_info->workaround_size = newsize;
7140 workaround_change = TRUE;
5446cbdf
AM
7141 }
7142 /* Ensure relocate_section is called. */
7143 isec->flags |= SEC_RELOC;
7144 }
7145 newsize = trampoff + relax_info->workaround_size;
7146 }
7147
5446cbdf
AM
7148 if (changes || workaround_change)
7149 isec->size = newsize;
7150
25dbc73a
AM
7151 if (isymbuf != NULL
7152 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7153 {
25dbc73a
AM
7154 if (! link_info->keep_memory)
7155 free (isymbuf);
252b5132 7156 else
25dbc73a
AM
7157 {
7158 /* Cache the symbols for elf_link_input_bfd. */
7159 symtab_hdr->contents = (unsigned char *) isymbuf;
7160 }
252b5132
RH
7161 }
7162
25dbc73a
AM
7163 if (contents != NULL
7164 && elf_section_data (isec)->this_hdr.contents != contents)
7165 {
53291d1f 7166 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7167 free (contents);
7168 else
7169 {
7170 /* Cache the section contents for elf_link_input_bfd. */
7171 elf_section_data (isec)->this_hdr.contents = contents;
7172 }
7173 }
252b5132 7174
9bc4e62b 7175 if (changes != 0)
25dbc73a 7176 {
9bc4e62b
NS
7177 /* Append sufficient NOP relocs so we can write out relocation
7178 information for the trampolines. */
d4730f92 7179 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7180 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7181 * sizeof (*new_relocs));
7182 unsigned ix;
5b914448 7183
9bc4e62b
NS
7184 if (!new_relocs)
7185 goto error_return;
7186 memcpy (new_relocs, internal_relocs,
7187 isec->reloc_count * sizeof (*new_relocs));
7188 for (ix = changes; ix--;)
7189 {
7190 irel = new_relocs + ix + isec->reloc_count;
7191
7192 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7193 }
7194 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7195 free (internal_relocs);
9bc4e62b
NS
7196 elf_section_data (isec)->relocs = new_relocs;
7197 isec->reloc_count += changes;
d4730f92
BS
7198 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7199 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7200 }
5446cbdf
AM
7201 else if (internal_relocs != NULL
7202 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7203 free (internal_relocs);
252b5132 7204
5446cbdf 7205 *again = changes != 0 || workaround_change;
b34976b6 7206 return TRUE;
25dbc73a
AM
7207
7208 error_return:
5446cbdf
AM
7209 while (fixups != NULL)
7210 {
7211 struct one_fixup *f = fixups;
7212 fixups = fixups->next;
7213 free (f);
7214 }
25dbc73a
AM
7215 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7216 free (isymbuf);
7217 if (contents != NULL
7218 && elf_section_data (isec)->this_hdr.contents != contents)
7219 free (contents);
7220 if (internal_relocs != NULL
7221 && elf_section_data (isec)->relocs != internal_relocs)
7222 free (internal_relocs);
7223 return FALSE;
252b5132 7224}
252b5132 7225\f
8a696751
AM
7226/* What to do when ld finds relocations against symbols defined in
7227 discarded sections. */
7228
7229static unsigned int
7230ppc_elf_action_discarded (asection *sec)
7231{
7232 if (strcmp (".fixup", sec->name) == 0)
7233 return 0;
7234
7235 if (strcmp (".got2", sec->name) == 0)
7236 return 0;
7237
7238 return _bfd_elf_default_action_discarded (sec);
7239}
c9a2f333 7240\f
25dbc73a 7241/* Fill in the address for a pointer generated in a linker section. */
252b5132 7242
25dbc73a 7243static bfd_vma
76750a2f 7244elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7245 elf_linker_section_t *lsect,
7246 struct elf_link_hash_entry *h,
7247 bfd_vma relocation,
2bb04cf2 7248 const Elf_Internal_Rela *rel)
25dbc73a
AM
7249{
7250 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7251
25dbc73a 7252 BFD_ASSERT (lsect != NULL);
252b5132 7253
25dbc73a 7254 if (h != NULL)
252b5132 7255 {
25dbc73a
AM
7256 /* Handle global symbol. */
7257 struct ppc_elf_link_hash_entry *eh;
252b5132 7258
25dbc73a 7259 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7260 BFD_ASSERT (eh->elf.def_regular);
7261 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7262 }
7263 else
7264 {
7265 /* Handle local symbol. */
7266 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7267
0c8d6e5c 7268 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7269 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7270 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7271 }
252b5132 7272
76750a2f
AM
7273 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7274 rel->r_addend,
7275 lsect);
7276 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7277
76750a2f
AM
7278 /* Offset will always be a multiple of four, so use the bottom bit
7279 as a "written" flag. */
7280 if ((linker_section_ptr->offset & 1) == 0)
7281 {
7282 bfd_put_32 (lsect->section->owner,
7283 relocation + linker_section_ptr->addend,
7284 lsect->section->contents + linker_section_ptr->offset);
7285 linker_section_ptr->offset += 1;
252b5132
RH
7286 }
7287
bd6c6e2b
AM
7288 relocation = (lsect->section->output_section->vma
7289 + lsect->section->output_offset
76750a2f 7290 + linker_section_ptr->offset - 1
bd6c6e2b 7291 - SYM_VAL (lsect->sym));
252b5132 7292
25dbc73a
AM
7293#ifdef DEBUG
7294 fprintf (stderr,
7295 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7296 lsect->name, (long) relocation, (long) relocation);
7297#endif
252b5132 7298
bd6c6e2b 7299 return relocation;
252b5132 7300}
25dbc73a 7301
e054468f
AM
7302#define PPC_LO(v) ((v) & 0xffff)
7303#define PPC_HI(v) (((v) >> 16) & 0xffff)
7304#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7305
7306static void
a7f2871e 7307write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7308 struct bfd_link_info *info)
7309{
7310 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7311 bfd *output_bfd = info->output_bfd;
7312 bfd_vma plt;
e054468f
AM
7313
7314 plt = ((ent->plt.offset & ~1)
7315 + plt_sec->output_section->vma
7316 + plt_sec->output_offset);
e054468f 7317
a877a2b6 7318 if (info->shared)
e054468f
AM
7319 {
7320 bfd_vma got = 0;
7321
7322 if (ent->addend >= 32768)
7323 got = (ent->addend
7324 + ent->sec->output_section->vma
7325 + ent->sec->output_offset);
7326 else if (htab->elf.hgot != NULL)
7327 got = SYM_VAL (htab->elf.hgot);
7328
7329 plt -= got;
7330
7331 if (plt + 0x8000 < 0x10000)
7332 {
7333 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7334 p += 4;
7335 bfd_put_32 (output_bfd, MTCTR_11, p);
7336 p += 4;
7337 bfd_put_32 (output_bfd, BCTR, p);
7338 p += 4;
7339 bfd_put_32 (output_bfd, NOP, p);
7340 p += 4;
7341 }
7342 else
7343 {
7344 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7345 p += 4;
7346 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7347 p += 4;
7348 bfd_put_32 (output_bfd, MTCTR_11, p);
7349 p += 4;
7350 bfd_put_32 (output_bfd, BCTR, p);
7351 p += 4;
7352 }
7353 }
7354 else
7355 {
7356 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7357 p += 4;
7358 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7359 p += 4;
7360 bfd_put_32 (output_bfd, MTCTR_11, p);
7361 p += 4;
7362 bfd_put_32 (output_bfd, BCTR, p);
7363 p += 4;
7364 }
7365}
7366
bd6c6e2b
AM
7367/* Return true if symbol is defined statically. */
7368
7369static bfd_boolean
7370is_static_defined (struct elf_link_hash_entry *h)
7371{
7372 return ((h->root.type == bfd_link_hash_defined
7373 || h->root.type == bfd_link_hash_defweak)
7374 && h->root.u.def.section != NULL
7375 && h->root.u.def.section->output_section != NULL);
7376}
7377
2d0f3896
AM
7378/* If INSN is an opcode that may be used with an @tls operand, return
7379 the transformed insn for TLS optimisation, otherwise return 0. If
7380 REG is non-zero only match an insn with RB or RA equal to REG. */
7381
7382unsigned int
7383_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7384{
7385 unsigned int rtra;
7386
7387 if ((insn & (0x3f << 26)) != 31 << 26)
7388 return 0;
7389
7390 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7391 rtra = insn & ((1 << 26) - (1 << 16));
7392 else if (((insn >> 16) & 0x1f) == reg)
7393 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7394 else
7395 return 0;
7396
7397 if ((insn & (0x3ff << 1)) == 266 << 1)
7398 /* add -> addi. */
7399 insn = 14 << 26;
7400 else if ((insn & (0x1f << 1)) == 23 << 1
7401 && ((insn & (0x1f << 6)) < 14 << 6
7402 || ((insn & (0x1f << 6)) >= 16 << 6
7403 && (insn & (0x1f << 6)) < 24 << 6)))
7404 /* load and store indexed -> dform. */
7405 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7406 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7407 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7408 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7409 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7410 /* lwax -> lwa. */
7411 insn = (58 << 26) | 2;
7412 else
7413 return 0;
7414 insn |= rtra;
7415 return insn;
7416}
7417
766bc656
AM
7418/* If INSN is an opcode that may be used with an @tprel operand, return
7419 the transformed insn for an undefined weak symbol, ie. with the
7420 thread pointer REG operand removed. Otherwise return 0. */
7421
7422unsigned int
7423_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7424{
7425 if ((insn & (0x1f << 16)) == reg << 16
7426 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7427 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7428 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7429 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7430 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7431 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7432 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7433 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7434 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7435 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7436 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7437 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7438 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7439 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7440 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7441 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7442 && (insn & 3) != 1)
7443 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7444 && ((insn & 3) == 0 || (insn & 3) == 3))))
7445 {
7446 insn &= ~(0x1f << 16);
7447 }
7448 else if ((insn & (0x1f << 21)) == reg << 21
7449 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7450 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7451 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7452 {
7453 insn &= ~(0x1f << 21);
7454 insn |= (insn & (0x1f << 16)) << 5;
7455 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7456 insn -= 2 >> 26; /* convert to ori,oris */
7457 }
7458 else
7459 insn = 0;
7460 return insn;
7461}
7462
1fe532cf
AM
7463static bfd_boolean
7464is_insn_ds_form (unsigned int insn)
7465{
7466 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7467 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7468 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7469 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7470}
7471
7472static bfd_boolean
7473is_insn_dq_form (unsigned int insn)
7474{
7475 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7476}
7477
252b5132
RH
7478/* The RELOCATE_SECTION function is called by the ELF backend linker
7479 to handle the relocations for a section.
7480
7481 The relocs are always passed as Rela structures; if the section
7482 actually uses Rel structures, the r_addend field will always be
7483 zero.
7484
7485 This function is responsible for adjust the section contents as
7486 necessary, and (if using Rela relocs and generating a
1049f94e 7487 relocatable output file) adjusting the reloc addend as
252b5132
RH
7488 necessary.
7489
7490 This function does not have to worry about setting the reloc
7491 address or the reloc symbol index.
7492
7493 LOCAL_SYMS is a pointer to the swapped in local symbols.
7494
7495 LOCAL_SECTIONS is an array giving the section in the input file
7496 corresponding to the st_shndx field of each local symbol.
7497
7498 The global hash table entry for the global symbols can be found
7499 via elf_sym_hashes (input_bfd).
7500
1049f94e 7501 When generating relocatable output, this function must handle
252b5132
RH
7502 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7503 going to be the section symbol corresponding to the output
7504 section, which means that the addend must be adjusted
7505 accordingly. */
7506
b34976b6 7507static bfd_boolean
55fd94b0
AM
7508ppc_elf_relocate_section (bfd *output_bfd,
7509 struct bfd_link_info *info,
7510 bfd *input_bfd,
7511 asection *input_section,
7512 bfd_byte *contents,
7513 Elf_Internal_Rela *relocs,
7514 Elf_Internal_Sym *local_syms,
7515 asection **local_sections)
252b5132 7516{
7619e7c7
AM
7517 Elf_Internal_Shdr *symtab_hdr;
7518 struct elf_link_hash_entry **sym_hashes;
7519 struct ppc_elf_link_hash_table *htab;
7520 Elf_Internal_Rela *rel;
7521 Elf_Internal_Rela *relend;
7522 Elf_Internal_Rela outrel;
f95f8542 7523 asection *got2;
252b5132 7524 bfd_vma *local_got_offsets;
b34976b6 7525 bfd_boolean ret = TRUE;
4fe5ca5b 7526 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 7527 bfd_boolean is_vxworks_tls;
b34976b6 7528
252b5132 7529#ifdef DEBUG
d003868e
AM
7530 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7531 "%ld relocations%s",
7532 input_bfd, input_section,
7533 (long) input_section->reloc_count,
7534 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH
7535#endif
7536
a6aa5195
AM
7537 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7538
e47cd125 7539 /* Initialize howto table if not already done. */
8da6118f 7540 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7541 ppc_elf_howto_init ();
7542
7619e7c7 7543 htab = ppc_elf_hash_table (info);
252b5132 7544 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7545 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7546 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7547 /* We have to handle relocations in vxworks .tls_vars sections
7548 specially, because the dynamic loader is 'weird'. */
7549 is_vxworks_tls = (htab->is_vxworks && info->shared
7550 && !strcmp (input_section->output_section->name,
7551 ".tls_vars"));
7619e7c7
AM
7552 rel = relocs;
7553 relend = relocs + input_section->reloc_count;
252b5132
RH
7554 for (; rel < relend; rel++)
7555 {
7619e7c7
AM
7556 enum elf_ppc_reloc_type r_type;
7557 bfd_vma addend;
7558 bfd_reloc_status_type r;
7559 Elf_Internal_Sym *sym;
7560 asection *sec;
7561 struct elf_link_hash_entry *h;
7562 const char *sym_name;
252b5132
RH
7563 reloc_howto_type *howto;
7564 unsigned long r_symndx;
7565 bfd_vma relocation;
91d6fa6a 7566 bfd_vma branch_bit, from;
7619e7c7
AM
7567 bfd_boolean unresolved_reloc;
7568 bfd_boolean warned;
7569 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7570 struct plt_entry **ifunc;
86c95733 7571 struct reloc_howto_struct alt_howto;
7619e7c7 7572
55fd94b0
AM
7573 r_type = ELF32_R_TYPE (rel->r_info);
7574 sym = NULL;
7575 sec = NULL;
7576 h = NULL;
7619e7c7
AM
7577 unresolved_reloc = FALSE;
7578 warned = FALSE;
252b5132 7579 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7580
252b5132
RH
7581 if (r_symndx < symtab_hdr->sh_info)
7582 {
7583 sym = local_syms + r_symndx;
7584 sec = local_sections[r_symndx];
26c61ae5 7585 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7586
8517fae7 7587 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7588 }
7589 else
7590 {
62d887d4
L
7591 bfd_boolean ignored;
7592
b2a8e766
AM
7593 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7594 r_symndx, symtab_hdr, sym_hashes,
7595 h, sec, relocation,
62d887d4 7596 unresolved_reloc, warned, ignored);
9abc968f 7597
252b5132 7598 sym_name = h->root.root.string;
7619e7c7
AM
7599 }
7600
dbaa2011 7601 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7602 {
7603 /* For relocs against symbols from removed linkonce sections,
7604 or sections discarded by a linker script, we just want the
7605 section contents zeroed. Avoid any special processing. */
7606 howto = NULL;
7607 if (r_type < R_PPC_max)
7608 howto = ppc_elf_howto_table[r_type];
e4067dbb 7609 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 7610 rel, 1, relend, howto, 0, contents);
ab96bf03
AM
7611 }
7612
7613 if (info->relocatable)
7614 {
7615 if (got2 != NULL
7616 && r_type == R_PPC_PLTREL24
f75e0e33 7617 && rel->r_addend != 0)
ab96bf03
AM
7618 {
7619 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7620 addend specifies the GOT pointer offset within .got2. */
7621 rel->r_addend += got2->output_offset;
7622 }
53291d1f
AM
7623 if (r_type != R_PPC_RELAX_PLT
7624 && r_type != R_PPC_RELAX_PLTREL24
7625 && r_type != R_PPC_RELAX)
7626 continue;
ab96bf03
AM
7627 }
7628
7619e7c7
AM
7629 /* TLS optimizations. Replace instruction sequences and relocs
7630 based on information we collected in tls_optimize. We edit
7631 RELOCS so that --emit-relocs will output something sensible
7632 for the final instruction stream. */
7633 tls_mask = 0;
7634 tls_gd = 0;
727fc41e
AM
7635 if (h != NULL)
7636 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7637 else if (local_got_offsets != NULL)
7619e7c7 7638 {
e054468f 7639 struct plt_entry **local_plt;
727fc41e 7640 char *lgot_masks;
e054468f
AM
7641 local_plt
7642 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7643 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7644 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7645 }
7646
7647 /* Ensure reloc mapping code below stays sane. */
7648 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7649 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7650 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7651 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7652 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7653 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7654 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7655 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7656 abort ();
7657 switch (r_type)
7658 {
7659 default:
7660 break;
7661
7662 case R_PPC_GOT_TPREL16:
7663 case R_PPC_GOT_TPREL16_LO:
e054468f 7664 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7665 && (tls_mask & TLS_TPREL) == 0)
7666 {
7667 bfd_vma insn;
91d6fa6a 7668
4fe5ca5b 7669 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM
7670 insn &= 31 << 21;
7671 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 7672 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM
7673 r_type = R_PPC_TPREL16_HA;
7674 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7675 }
7676 break;
7677
7678 case R_PPC_TLS:
e054468f 7679 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7680 && (tls_mask & TLS_TPREL) == 0)
7681 {
2d0f3896
AM
7682 bfd_vma insn;
7683
7619e7c7 7684 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM
7685 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7686 if (insn == 0)
7619e7c7 7687 abort ();
7619e7c7
AM
7688 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7689 r_type = R_PPC_TPREL16_LO;
7690 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7691
7619e7c7 7692 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7693 PPC_TPREL16_LO which is at low-order half-word. */
7694 rel->r_offset += d_offset;
7619e7c7
AM
7695 }
7696 break;
7697
7698 case R_PPC_GOT_TLSGD16_HI:
7699 case R_PPC_GOT_TLSGD16_HA:
7700 tls_gd = TLS_TPRELGD;
e054468f 7701 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
7702 goto tls_gdld_hi;
7703 break;
7704
7705 case R_PPC_GOT_TLSLD16_HI:
7706 case R_PPC_GOT_TLSLD16_HA:
e054468f 7707 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
7708 {
7709 tls_gdld_hi:
7710 if ((tls_mask & tls_gd) != 0)
7711 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7712 + R_PPC_GOT_TPREL16);
7713 else
7714 {
7715 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 7716 rel->r_offset -= d_offset;
7619e7c7
AM
7717 r_type = R_PPC_NONE;
7718 }
7719 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7720 }
7721 break;
7722
7723 case R_PPC_GOT_TLSGD16:
7724 case R_PPC_GOT_TLSGD16_LO:
7725 tls_gd = TLS_TPRELGD;
e054468f 7726 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 7727 goto tls_ldgd_opt;
7619e7c7
AM
7728 break;
7729
7730 case R_PPC_GOT_TLSLD16:
7731 case R_PPC_GOT_TLSLD16_LO:
e054468f 7732 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 7733 {
3a71aa26 7734 unsigned int insn1, insn2;
b7fcf6f6 7735 bfd_vma offset;
7619e7c7 7736
b7fcf6f6 7737 tls_ldgd_opt:
727fc41e
AM
7738 offset = (bfd_vma) -1;
7739 /* If not using the newer R_PPC_TLSGD/LD to mark
7740 __tls_get_addr calls, we must trust that the call
7741 stays with its arg setup insns, ie. that the next
7742 reloc is the __tls_get_addr call associated with
7743 the current reloc. Edit both insns. */
7744 if (input_section->has_tls_get_addr_call
7745 && rel + 1 < relend
7746 && branch_reloc_hash_match (input_bfd, rel + 1,
7747 htab->tls_get_addr))
7748 offset = rel[1].r_offset;
b7fcf6f6
AM
7749 if ((tls_mask & tls_gd) != 0)
7750 {
7751 /* IE */
3a71aa26
AM
7752 insn1 = bfd_get_32 (output_bfd,
7753 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7754 insn1 &= (1 << 26) - 1;
7755 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
7756 if (offset != (bfd_vma) -1)
7757 {
f58d5a2d 7758 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7759 insn2 = 0x7c631214; /* add 3,3,2 */
7760 bfd_put_32 (output_bfd, insn2, contents + offset);
7761 }
b7fcf6f6
AM
7762 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7763 + R_PPC_GOT_TPREL16);
7764 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7765 }
7766 else
7767 {
7768 /* LE */
7769 insn1 = 0x3c620000; /* addis 3,2,0 */
7619e7c7
AM
7770 if (tls_gd == 0)
7771 {
b7fcf6f6 7772 /* Was an LD reloc. */
1d483afe
AM
7773 for (r_symndx = 0;
7774 r_symndx < symtab_hdr->sh_info;
7775 r_symndx++)
7776 if (local_sections[r_symndx] == sec)
7777 break;
7778 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7779 r_symndx = STN_UNDEF;
b7fcf6f6 7780 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7781 if (r_symndx != STN_UNDEF)
1d483afe
AM
7782 rel->r_addend -= (local_syms[r_symndx].st_value
7783 + sec->output_offset
7784 + sec->output_section->vma);
7619e7c7 7785 }
b7fcf6f6
AM
7786 r_type = R_PPC_TPREL16_HA;
7787 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
7788 if (offset != (bfd_vma) -1)
7789 {
7790 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7791 rel[1].r_offset = offset + d_offset;
7792 rel[1].r_addend = rel->r_addend;
7793 insn2 = 0x38630000; /* addi 3,3,0 */
7794 bfd_put_32 (output_bfd, insn2, contents + offset);
7795 }
b7fcf6f6
AM
7796 }
7797 bfd_put_32 (output_bfd, insn1,
7798 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7799 if (tls_gd == 0)
7800 {
7801 /* We changed the symbol on an LD reloc. Start over
7802 in order to get h, sym, sec etc. right. */
7803 rel--;
7804 continue;
7619e7c7 7805 }
252b5132 7806 }
7619e7c7 7807 break;
727fc41e
AM
7808
7809 case R_PPC_TLSGD:
e054468f 7810 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
7811 {
7812 unsigned int insn2;
7813 bfd_vma offset = rel->r_offset;
7814
7815 if ((tls_mask & TLS_TPRELGD) != 0)
7816 {
7817 /* IE */
7818 r_type = R_PPC_NONE;
7819 insn2 = 0x7c631214; /* add 3,3,2 */
7820 }
7821 else
7822 {
7823 /* LE */
7824 r_type = R_PPC_TPREL16_LO;
7825 rel->r_offset += d_offset;
7826 insn2 = 0x38630000; /* addi 3,3,0 */
7827 }
7828 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7829 bfd_put_32 (output_bfd, insn2, contents + offset);
7830 /* Zap the reloc on the _tls_get_addr call too. */
7831 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 7832 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7833 }
7834 break;
7835
7836 case R_PPC_TLSLD:
e054468f 7837 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
7838 {
7839 unsigned int insn2;
7840
7841 for (r_symndx = 0;
7842 r_symndx < symtab_hdr->sh_info;
7843 r_symndx++)
7844 if (local_sections[r_symndx] == sec)
7845 break;
7846 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7847 r_symndx = STN_UNDEF;
727fc41e 7848 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7849 if (r_symndx != STN_UNDEF)
727fc41e
AM
7850 rel->r_addend -= (local_syms[r_symndx].st_value
7851 + sec->output_offset
7852 + sec->output_section->vma);
7853
7854 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7855 rel->r_offset += d_offset;
7856 insn2 = 0x38630000; /* addi 3,3,0 */
7857 bfd_put_32 (output_bfd, insn2,
7858 contents + rel->r_offset - d_offset);
7859 /* Zap the reloc on the _tls_get_addr call too. */
7860 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 7861 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7862 rel--;
7863 continue;
7864 }
7865 break;
7619e7c7
AM
7866 }
7867
7868 /* Handle other relocations that tweak non-addend part of insn. */
7869 branch_bit = 0;
7870 switch (r_type)
7871 {
7872 default:
7873 break;
7874
7875 /* Branch taken prediction relocations. */
7876 case R_PPC_ADDR14_BRTAKEN:
7877 case R_PPC_REL14_BRTAKEN:
7878 branch_bit = BRANCH_PREDICT_BIT;
7879 /* Fall thru */
7880
4cc11e76 7881 /* Branch not taken prediction relocations. */
7619e7c7
AM
7882 case R_PPC_ADDR14_BRNTAKEN:
7883 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
7884 {
7885 bfd_vma insn;
7619e7c7 7886
91d6fa6a
NC
7887 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7888 insn &= ~BRANCH_PREDICT_BIT;
7889 insn |= branch_bit;
7619e7c7 7890
91d6fa6a
NC
7891 from = (rel->r_offset
7892 + input_section->output_offset
7893 + input_section->output_section->vma);
7619e7c7 7894
91d6fa6a
NC
7895 /* Invert 'y' bit if not the default. */
7896 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7897 insn ^= BRANCH_PREDICT_BIT;
7898
7899 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7900 break;
7901 }
252b5132
RH
7902 }
7903
e054468f 7904 ifunc = NULL;
25f23106 7905 if (!htab->is_vxworks)
e054468f 7906 {
de972ffa
AM
7907 struct plt_entry *ent;
7908
e054468f
AM
7909 if (h != NULL)
7910 {
7911 if (h->type == STT_GNU_IFUNC)
7912 ifunc = &h->plt.plist;
7913 }
de972ffa
AM
7914 else if (local_got_offsets != NULL
7915 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 7916 {
de972ffa 7917 struct plt_entry **local_plt;
e054468f 7918
de972ffa
AM
7919 local_plt = (struct plt_entry **) (local_got_offsets
7920 + symtab_hdr->sh_info);
7921 ifunc = local_plt + r_symndx;
e054468f 7922 }
e054468f 7923
de972ffa
AM
7924 ent = NULL;
7925 if (ifunc != NULL
7926 && (!info->shared
7927 || is_branch_reloc (r_type)))
7928 {
7929 addend = 0;
a877a2b6 7930 if (r_type == R_PPC_PLTREL24 && info->shared)
de972ffa
AM
7931 addend = rel->r_addend;
7932 ent = find_plt_ent (ifunc, got2, addend);
7933 }
7934 if (ent != NULL)
7935 {
e054468f
AM
7936 if (h == NULL && (ent->plt.offset & 1) == 0)
7937 {
7938 Elf_Internal_Rela rela;
7939 bfd_byte *loc;
7940
7941 rela.r_offset = (htab->iplt->output_section->vma
7942 + htab->iplt->output_offset
7943 + ent->plt.offset);
7944 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7945 rela.r_addend = relocation;
25f23106
AM
7946 loc = htab->reliplt->contents;
7947 loc += (htab->reliplt->reloc_count++
7948 * sizeof (Elf32_External_Rela));
e054468f
AM
7949 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7950
7951 ent->plt.offset |= 1;
7952 }
7953 if (h == NULL && (ent->glink_offset & 1) == 0)
7954 {
a7f2871e
AM
7955 unsigned char *p = ((unsigned char *) htab->glink->contents
7956 + ent->glink_offset);
7957 write_glink_stub (ent, htab->iplt, p, info);
e054468f
AM
7958 ent->glink_offset |= 1;
7959 }
7960
7961 unresolved_reloc = FALSE;
7962 if (htab->plt_type == PLT_NEW
7963 || !htab->elf.dynamic_sections_created
c7e17e05
AM
7964 || h == NULL
7965 || h->dynindx == -1)
e054468f
AM
7966 relocation = (htab->glink->output_section->vma
7967 + htab->glink->output_offset
7968 + (ent->glink_offset & ~1));
7969 else
7970 relocation = (htab->plt->output_section->vma
7971 + htab->plt->output_offset
7972 + ent->plt.offset);
7973 }
7974 }
7975
7619e7c7
AM
7976 addend = rel->r_addend;
7977 tls_type = 0;
7978 howto = NULL;
55fd94b0
AM
7979 if (r_type < R_PPC_max)
7980 howto = ppc_elf_howto_table[r_type];
7619e7c7 7981 switch (r_type)
252b5132
RH
7982 {
7983 default:
25f53a85 7984 info->callbacks->einfo
8de848d8 7985 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 7986 input_bfd, (int) r_type, sym_name);
252b5132
RH
7987
7988 bfd_set_error (bfd_error_bad_value);
b34976b6 7989 ret = FALSE;
252b5132
RH
7990 continue;
7991
7619e7c7
AM
7992 case R_PPC_NONE:
7993 case R_PPC_TLS:
727fc41e
AM
7994 case R_PPC_TLSGD:
7995 case R_PPC_TLSLD:
7619e7c7
AM
7996 case R_PPC_EMB_MRKREF:
7997 case R_PPC_GNU_VTINHERIT:
7998 case R_PPC_GNU_VTENTRY:
7595d193
L
7999 continue;
8000
7619e7c7
AM
8001 /* GOT16 relocations. Like an ADDR16 using the symbol's
8002 address in the GOT as relocation value instead of the
8003 symbol's value itself. Also, create a GOT entry for the
8004 symbol and put the symbol value there. */
8005 case R_PPC_GOT_TLSGD16:
8006 case R_PPC_GOT_TLSGD16_LO:
8007 case R_PPC_GOT_TLSGD16_HI:
8008 case R_PPC_GOT_TLSGD16_HA:
8009 tls_type = TLS_TLS | TLS_GD;
8010 goto dogot;
8011
8012 case R_PPC_GOT_TLSLD16:
8013 case R_PPC_GOT_TLSLD16_LO:
8014 case R_PPC_GOT_TLSLD16_HI:
8015 case R_PPC_GOT_TLSLD16_HA:
8016 tls_type = TLS_TLS | TLS_LD;
8017 goto dogot;
8018
8019 case R_PPC_GOT_TPREL16:
8020 case R_PPC_GOT_TPREL16_LO:
8021 case R_PPC_GOT_TPREL16_HI:
8022 case R_PPC_GOT_TPREL16_HA:
8023 tls_type = TLS_TLS | TLS_TPREL;
8024 goto dogot;
8025
8026 case R_PPC_GOT_DTPREL16:
8027 case R_PPC_GOT_DTPREL16_LO:
8028 case R_PPC_GOT_DTPREL16_HI:
8029 case R_PPC_GOT_DTPREL16_HA:
8030 tls_type = TLS_TLS | TLS_DTPREL;
8031 goto dogot;
8032
8033 case R_PPC_GOT16:
8034 case R_PPC_GOT16_LO:
8035 case R_PPC_GOT16_HI:
8036 case R_PPC_GOT16_HA:
727fc41e 8037 tls_mask = 0;
7619e7c7
AM
8038 dogot:
8039 {
8040 /* Relocation is to the entry for this symbol in the global
8041 offset table. */
8042 bfd_vma off;
8043 bfd_vma *offp;
8044 unsigned long indx;
8045
8046 if (htab->got == NULL)
8047 abort ();
8048
8049 indx = 0;
8050 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8051 && (h == NULL
f5385ebf 8052 || !h->def_dynamic))
7619e7c7
AM
8053 offp = &htab->tlsld_got.offset;
8054 else if (h != NULL)
8055 {
8056 bfd_boolean dyn;
8057 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 8058 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM
8059 || (info->shared
8060 && SYMBOL_REFERENCES_LOCAL (info, h)))
8061 /* This is actually a static link, or it is a
8062 -Bsymbolic link and the symbol is defined
8063 locally, or the symbol was forced to be local
8064 because of a version file. */
8065 ;
8066 else
8067 {
14acf4dc 8068 BFD_ASSERT (h->dynindx != -1);
7619e7c7
AM
8069 indx = h->dynindx;
8070 unresolved_reloc = FALSE;
8071 }
8072 offp = &h->got.offset;
8073 }
8074 else
8075 {
8076 if (local_got_offsets == NULL)
8077 abort ();
8078 offp = &local_got_offsets[r_symndx];
8079 }
8080
8081 /* The offset must always be a multiple of 4. We use the
8082 least significant bit to record whether we have already
8083 processed this entry. */
8084 off = *offp;
8085 if ((off & 1) != 0)
8086 off &= ~1;
8087 else
8088 {
70bccea4
AM
8089 unsigned int tls_m = (tls_mask
8090 & (TLS_LD | TLS_GD | TLS_DTPREL
8091 | TLS_TPREL | TLS_TPRELGD));
8092
8093 if (offp == &htab->tlsld_got.offset)
8094 tls_m = TLS_LD;
8095 else if (h == NULL
f5385ebf 8096 || !h->def_dynamic)
70bccea4
AM
8097 tls_m &= ~TLS_LD;
8098
8099 /* We might have multiple got entries for this sym.
8100 Initialize them all. */
8101 do
7619e7c7 8102 {
70bccea4
AM
8103 int tls_ty = 0;
8104
8105 if ((tls_m & TLS_LD) != 0)
7619e7c7 8106 {
70bccea4
AM
8107 tls_ty = TLS_TLS | TLS_LD;
8108 tls_m &= ~TLS_LD;
8109 }
8110 else if ((tls_m & TLS_GD) != 0)
8111 {
8112 tls_ty = TLS_TLS | TLS_GD;
8113 tls_m &= ~TLS_GD;
8114 }
8115 else if ((tls_m & TLS_DTPREL) != 0)
8116 {
8117 tls_ty = TLS_TLS | TLS_DTPREL;
8118 tls_m &= ~TLS_DTPREL;
8119 }
8120 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8121 {
8122 tls_ty = TLS_TLS | TLS_TPREL;
8123 tls_m = 0;
7619e7c7 8124 }
7619e7c7 8125
70bccea4 8126 /* Generate relocs for the dynamic linker. */
4e795f50 8127 if ((info->shared || indx != 0)
d6e14abc
AM
8128 && (offp == &htab->tlsld_got.offset
8129 || h == NULL
4e795f50
AM
8130 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8131 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 8132 {
91e21fb7 8133 asection *rsec = htab->relgot;
91d6fa6a 8134 bfd_byte * loc;
91e21fb7 8135
0bed072f
AM
8136 if (ifunc != NULL)
8137 rsec = htab->reliplt;
70bccea4
AM
8138 outrel.r_offset = (htab->got->output_section->vma
8139 + htab->got->output_offset
8140 + off);
e515b051 8141 outrel.r_addend = 0;
70bccea4
AM
8142 if (tls_ty & (TLS_LD | TLS_GD))
8143 {
8144 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8145 if (tls_ty == (TLS_TLS | TLS_GD))
8146 {
25f23106
AM
8147 loc = rsec->contents;
8148 loc += (rsec->reloc_count++
70bccea4
AM
8149 * sizeof (Elf32_External_Rela));
8150 bfd_elf32_swap_reloca_out (output_bfd,
8151 &outrel, loc);
e515b051 8152 outrel.r_offset += 4;
70bccea4
AM
8153 outrel.r_info
8154 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8155 }
8156 }
8157 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8158 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8159 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8160 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8161 else if (indx != 0)
70bccea4 8162 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8163 else if (ifunc != NULL)
8164 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8165 else
8166 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8167 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8168 {
8169 outrel.r_addend += relocation;
8170 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 8171 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 8172 }
25f23106
AM
8173 loc = rsec->contents;
8174 loc += (rsec->reloc_count++
70bccea4
AM
8175 * sizeof (Elf32_External_Rela));
8176 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8177 }
8178
70bccea4
AM
8179 /* Init the .got section contents if we're not
8180 emitting a reloc. */
8181 else
7619e7c7 8182 {
70bccea4
AM
8183 bfd_vma value = relocation;
8184
7b609f53
AM
8185 if (tls_ty == (TLS_TLS | TLS_LD))
8186 value = 1;
8187 else if (tls_ty != 0)
70bccea4 8188 {
e1918d23 8189 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 8190 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 8191 value += DTP_OFFSET - TP_OFFSET;
70bccea4 8192
7b609f53
AM
8193 if (tls_ty == (TLS_TLS | TLS_GD))
8194 {
8195 bfd_put_32 (output_bfd, value,
8196 htab->got->contents + off + 4);
8197 value = 1;
8198 }
70bccea4 8199 }
70bccea4
AM
8200 bfd_put_32 (output_bfd, value,
8201 htab->got->contents + off);
7619e7c7 8202 }
70bccea4
AM
8203
8204 off += 4;
8205 if (tls_ty & (TLS_LD | TLS_GD))
8206 off += 4;
7619e7c7 8207 }
70bccea4
AM
8208 while (tls_m != 0);
8209
8210 off = *offp;
8211 *offp = off | 1;
7619e7c7
AM
8212 }
8213
8214 if (off >= (bfd_vma) -2)
8215 abort ();
8216
70bccea4
AM
8217 if ((tls_type & TLS_TLS) != 0)
8218 {
8219 if (tls_type != (TLS_TLS | TLS_LD))
8220 {
8221 if ((tls_mask & TLS_LD) != 0
8222 && !(h == NULL
f5385ebf 8223 || !h->def_dynamic))
70bccea4
AM
8224 off += 8;
8225 if (tls_type != (TLS_TLS | TLS_GD))
8226 {
8227 if ((tls_mask & TLS_GD) != 0)
8228 off += 8;
8229 if (tls_type != (TLS_TLS | TLS_DTPREL))
8230 {
8231 if ((tls_mask & TLS_DTPREL) != 0)
8232 off += 4;
8233 }
8234 }
8235 }
8236 }
8237
e87d4038
AM
8238 relocation = (htab->got->output_section->vma
8239 + htab->got->output_offset
8240 + off
8241 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8242
8243 /* Addends on got relocations don't make much sense.
8244 x+off@got is actually x@got+off, and since the got is
8245 generated by a hash table traversal, the value in the
8246 got at entry m+n bears little relation to the entry m. */
8247 if (addend != 0)
25f53a85 8248 info->callbacks->einfo
8de848d8 8249 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8250 input_bfd, input_section, rel->r_offset,
7b609f53 8251 howto->name,
7619e7c7
AM
8252 sym_name);
8253 }
86c95733 8254 break;
7619e7c7 8255
86c95733 8256 /* Relocations that need no special processing. */
7619e7c7 8257 case R_PPC_LOCAL24PC:
252b5132
RH
8258 /* It makes no sense to point a local relocation
8259 at a symbol not in this object. */
7b609f53 8260 if (unresolved_reloc)
252b5132 8261 {
464e1740
ILT
8262 if (! (*info->callbacks->undefined_symbol) (info,
8263 h->root.root.string,
8264 input_bfd,
8265 input_section,
5cc7c785 8266 rel->r_offset,
b34976b6
AM
8267 TRUE))
8268 return FALSE;
252b5132
RH
8269 continue;
8270 }
8271 break;
8272
7619e7c7
AM
8273 case R_PPC_DTPREL16:
8274 case R_PPC_DTPREL16_LO:
8275 case R_PPC_DTPREL16_HI:
8276 case R_PPC_DTPREL16_HA:
e1918d23 8277 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8278 break;
8279
70bccea4
AM
8280 /* Relocations that may need to be propagated if this is a shared
8281 object. */
7619e7c7
AM
8282 case R_PPC_TPREL16:
8283 case R_PPC_TPREL16_LO:
8284 case R_PPC_TPREL16_HI:
8285 case R_PPC_TPREL16_HA:
766bc656
AM
8286 if (h != NULL
8287 && h->root.type == bfd_link_hash_undefweak
8288 && h->dynindx == -1)
8289 {
8290 /* Make this relocation against an undefined weak symbol
8291 resolve to zero. This is really just a tweak, since
8292 code using weak externs ought to check that they are
8293 defined before using them. */
8294 bfd_byte *p = contents + rel->r_offset - d_offset;
8295 unsigned int insn = bfd_get_32 (output_bfd, p);
8296 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8297 if (insn != 0)
8298 bfd_put_32 (output_bfd, insn, p);
8299 break;
8300 }
e1918d23 8301 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8302 /* The TPREL16 relocs shouldn't really be used in shared
8303 libs as they will result in DT_TEXTREL being set, but
8304 support them anyway. */
8305 goto dodyn;
8306
8307 case R_PPC_TPREL32:
e1918d23 8308 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8309 goto dodyn;
8310
8311 case R_PPC_DTPREL32:
e1918d23 8312 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8313 goto dodyn;
8314
e515b051
AM
8315 case R_PPC_DTPMOD32:
8316 relocation = 1;
8317 addend = 0;
8318 goto dodyn;
8319
d7128ce4
AM
8320 case R_PPC_REL16:
8321 case R_PPC_REL16_LO:
8322 case R_PPC_REL16_HI:
8323 case R_PPC_REL16_HA:
8324 break;
8325
7619e7c7 8326 case R_PPC_REL32:
625af618
AM
8327 if (h == NULL || h == htab->elf.hgot)
8328 break;
8329 /* fall through */
8330
8331 case R_PPC_ADDR32:
8332 case R_PPC_ADDR16:
8333 case R_PPC_ADDR16_LO:
8334 case R_PPC_ADDR16_HI:
8335 case R_PPC_ADDR16_HA:
8336 case R_PPC_UADDR32:
8337 case R_PPC_UADDR16:
8338 goto dodyn;
8339
b9c361e0
JL
8340 case R_PPC_VLE_REL8:
8341 case R_PPC_VLE_REL15:
8342 case R_PPC_VLE_REL24:
625af618 8343 case R_PPC_REL24:
7619e7c7
AM
8344 case R_PPC_REL14:
8345 case R_PPC_REL14_BRTAKEN:
8346 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8347 /* If these relocations are not to a named symbol, they can be
8348 handled right here, no need to bother the dynamic linker. */
89200bf8 8349 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8350 || h == htab->elf.hgot)
252b5132 8351 break;
70bccea4 8352 /* fall through */
252b5132 8353
7619e7c7 8354 case R_PPC_ADDR24:
7619e7c7
AM
8355 case R_PPC_ADDR14:
8356 case R_PPC_ADDR14_BRTAKEN:
8357 case R_PPC_ADDR14_BRNTAKEN:
625af618
AM
8358 if (h != NULL && !info->shared)
8359 break;
8360 /* fall through */
8361
7619e7c7 8362 dodyn:
3348747a
NS
8363 if ((input_section->flags & SEC_ALLOC) == 0
8364 || is_vxworks_tls)
c87b5a93 8365 break;
c87b5a93 8366
ee05f2fe 8367 if ((info->shared
89200bf8
AM
8368 && !(h != NULL
8369 && ((h->root.type == bfd_link_hash_undefined
8370 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8371 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8372 || (h->root.type == bfd_link_hash_undefweak
8373 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 8374 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8375 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM
8376 || (ELIMINATE_COPY_RELOCS
8377 && !info->shared
ee05f2fe
AM
8378 && h != NULL
8379 && h->dynindx != -1
f5385ebf 8380 && !h->non_got_ref
de972ffa 8381 && !h->def_regular))
252b5132 8382 {
0bb2d96a 8383 int skip;
f95f8542
AM
8384 bfd_byte *loc;
8385 asection *sreloc;
252b5132 8386#ifdef DEBUG
55fd94b0
AM
8387 fprintf (stderr, "ppc_elf_relocate_section needs to "
8388 "create relocation for %s\n",
70bccea4
AM
8389 (h && h->root.root.string
8390 ? h->root.root.string : "<unknown>"));
252b5132
RH
8391#endif
8392
8393 /* When generating a shared object, these relocations
70bccea4
AM
8394 are copied into the output file to be resolved at run
8395 time. */
f95f8542
AM
8396 sreloc = elf_section_data (input_section)->sreloc;
8397 if (ifunc)
8398 sreloc = htab->reliplt;
252b5132 8399 if (sreloc == NULL)
f95f8542 8400 return FALSE;
252b5132 8401
0bb2d96a 8402 skip = 0;
5b914448
AM
8403 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8404 input_section,
8405 rel->r_offset);
0bb2d96a
JJ
8406 if (outrel.r_offset == (bfd_vma) -1
8407 || outrel.r_offset == (bfd_vma) -2)
8408 skip = (int) outrel.r_offset;
252b5132
RH
8409 outrel.r_offset += (input_section->output_section->vma
8410 + input_section->output_offset);
8411
8412 if (skip)
8413 memset (&outrel, 0, sizeof outrel);
89200bf8
AM
8414 else if ((h != NULL
8415 && (h->root.type == bfd_link_hash_undefined
8416 || h->root.type == bfd_link_hash_undefweak))
8417 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8418 {
14acf4dc 8419 BFD_ASSERT (h->dynindx != -1);
7619e7c7 8420 unresolved_reloc = FALSE;
252b5132
RH
8421 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8422 outrel.r_addend = rel->r_addend;
8423 }
8424 else
8425 {
47388f4c
AM
8426 outrel.r_addend = relocation + rel->r_addend;
8427
25f23106 8428 if (r_type != R_PPC_ADDR32)
252b5132 8429 {
89200bf8 8430 long indx = 0;
252b5132 8431
25f23106
AM
8432 if (ifunc != NULL)
8433 {
8434 /* If we get here when building a static
8435 executable, then the libc startup function
8436 responsible for applying indirect function
8437 relocations is going to complain about
8438 the reloc type.
8439 If we get here when building a dynamic
8440 executable, it will be because we have
8441 a text relocation. The dynamic loader
8442 will set the text segment writable and
8443 non-executable to apply text relocations.
8444 So we'll segfault when trying to run the
8445 indirection function to resolve the reloc. */
25f53a85 8446 info->callbacks->einfo
8de848d8 8447 (_("%P: %H: relocation %s for indirect "
25f53a85
AM
8448 "function %s unsupported\n"),
8449 input_bfd, input_section, rel->r_offset,
25f23106
AM
8450 howto->name,
8451 sym_name);
8452 ret = FALSE;
8453 }
cf35638d 8454 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8455 ;
252b5132
RH
8456 else if (sec == NULL || sec->owner == NULL)
8457 {
8458 bfd_set_error (bfd_error_bad_value);
89200bf8 8459 ret = FALSE;
252b5132
RH
8460 }
8461 else
8462 {
8463 asection *osec;
8464
47388f4c
AM
8465 /* We are turning this relocation into one
8466 against a section symbol. It would be
8467 proper to subtract the symbol's value,
8468 osec->vma, from the emitted reloc addend,
25f23106
AM
8469 but ld.so expects buggy relocs.
8470 FIXME: Why not always use a zero index? */
252b5132
RH
8471 osec = sec->output_section;
8472 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8473 if (indx == 0)
8474 {
8475 osec = htab->elf.text_index_section;
8476 indx = elf_section_data (osec)->dynindx;
8477 }
8478 BFD_ASSERT (indx != 0);
252b5132 8479#ifdef DEBUG
74541ad4 8480 if (indx == 0)
e460dd0d 8481 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8482 indx, osec->name, osec->flags,
8483 h->root.root.string);
252b5132
RH
8484#endif
8485 }
8486
8487 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8488 }
25f23106
AM
8489 else if (ifunc != NULL)
8490 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8491 else
8492 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8493 }
8494
947216bf
AM
8495 loc = sreloc->contents;
8496 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8497 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8498
2243deae 8499 if (skip == -1)
252b5132 8500 continue;
2243deae
L
8501
8502 /* This reloc will be computed at runtime. We clear the memory
8503 so that it contains predictable value. */
8504 if (! skip
8505 && ((input_section->flags & SEC_ALLOC) != 0
8506 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8507 {
8508 relocation = howto->pc_relative ? outrel.r_offset : 0;
8509 addend = 0;
8510 break;
8511 }
252b5132 8512 }
252b5132
RH
8513 break;
8514
32af9f6e
AM
8515 case R_PPC_RELAX_PLT:
8516 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
8517 if (h != NULL)
8518 {
32af9f6e
AM
8519 struct plt_entry *ent;
8520 bfd_vma got2_addend = 0;
8521
8522 if (r_type == R_PPC_RELAX_PLTREL24)
8523 {
8524 if (info->shared)
8525 got2_addend = addend;
8526 addend = 0;
8527 }
8528 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
8529 if (htab->plt_type == PLT_NEW)
8530 relocation = (htab->glink->output_section->vma
8531 + htab->glink->output_offset
8532 + ent->glink_offset);
8533 else
8534 relocation = (htab->plt->output_section->vma
8535 + htab->plt->output_offset
8536 + ent->plt.offset);
8537 }
b4a38de6
AM
8538 /* Fall thru */
8539
32af9f6e 8540 case R_PPC_RELAX:
9abc968f 8541 {
53291d1f
AM
8542 const int *stub;
8543 size_t size;
8544 size_t insn_offset = rel->r_offset;
8545 unsigned int insn;
9abc968f 8546
53291d1f
AM
8547 if (info->shared)
8548 {
8549 relocation -= (input_section->output_section->vma
8550 + input_section->output_offset
8551 + rel->r_offset - 4);
8552 stub = shared_stub_entry;
8553 bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
8554 bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
8555 bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
8556 stub += 3;
8557 size = ARRAY_SIZE (shared_stub_entry) - 3;
8558 }
8559 else
8560 {
8561 stub = stub_entry;
8562 size = ARRAY_SIZE (stub_entry);
8563 }
9abc968f 8564
9abc968f 8565 relocation += addend;
53291d1f
AM
8566 if (info->relocatable)
8567 relocation = 0;
8568
8569 /* First insn is HA, second is LO. */
8570 insn = *stub++;
8571 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
8572 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8573 insn_offset += 4;
8574
8575 insn = *stub++;
8576 insn |= relocation & 0xffff;
8577 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8578 insn_offset += 4;
8579 size -= 2;
8580
8581 while (size != 0)
8582 {
8583 insn = *stub++;
8584 --size;
8585 bfd_put_32 (output_bfd, insn, contents + insn_offset);
8586 insn_offset += 4;
8587 }
9bc4e62b
NS
8588
8589 /* Rewrite the reloc and convert one of the trailing nop
8590 relocs to describe this relocation. */
8591 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8592 /* The relocs are at the bottom 2 bytes */
53291d1f 8593 rel[0].r_offset += d_offset;
9bc4e62b
NS
8594 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8595 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8596 rel[1].r_offset += 4;
8597 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8598 rel++;
9abc968f 8599 }
8517fae7 8600 continue;
deaaf2f3 8601
70bccea4 8602 /* Indirect .sdata relocation. */
7619e7c7 8603 case R_PPC_EMB_SDAI16:
c9a2f333 8604 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
8605 if (!is_static_defined (htab->sdata[0].sym))
8606 {
8607 unresolved_reloc = TRUE;
8608 break;
8609 }
7619e7c7 8610 relocation
76750a2f
AM
8611 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8612 h, relocation, rel);
bd6c6e2b 8613 addend = 0;
252b5132
RH
8614 break;
8615
70bccea4 8616 /* Indirect .sdata2 relocation. */
7619e7c7 8617 case R_PPC_EMB_SDA2I16:
c9a2f333 8618 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
8619 if (!is_static_defined (htab->sdata[1].sym))
8620 {
8621 unresolved_reloc = TRUE;
8622 break;
8623 }
7619e7c7 8624 relocation
76750a2f
AM
8625 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8626 h, relocation, rel);
bd6c6e2b 8627 addend = 0;
252b5132
RH
8628 break;
8629
70bccea4
AM
8630 /* Handle the TOC16 reloc. We want to use the offset within the .got
8631 section, not the actual VMA. This is appropriate when generating
8632 an embedded ELF object, for which the .got section acts like the
8633 AIX .toc section. */
7619e7c7 8634 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
8635 if (sec == NULL || sec->output_section == NULL)
8636 {
8637 unresolved_reloc = TRUE;
8638 break;
8639 }
a0f49396
NC
8640 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8641 ".got") == 0
8642 || strcmp (bfd_get_section_name (sec->owner, sec),
8643 ".cgot") == 0);
252b5132 8644
3b4f3a11 8645 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
8646 break;
8647
7619e7c7 8648 case R_PPC_PLTREL24:
f75e0e33
AM
8649 if (h != NULL && ifunc == NULL)
8650 {
8651 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8652 info->shared ? addend : 0);
8653 if (ent == NULL
8654 || htab->plt == NULL)
8655 {
8656 /* We didn't make a PLT entry for this symbol. This
8657 happens when statically linking PIC code, or when
8658 using -Bsymbolic. */
8659 }
8660 else
8661 {
8662 /* Relocation is to the entry for this symbol in the
8663 procedure linkage table. */
8664 unresolved_reloc = FALSE;
8665 if (htab->plt_type == PLT_NEW)
8666 relocation = (htab->glink->output_section->vma
8667 + htab->glink->output_offset
8668 + ent->glink_offset);
8669 else
8670 relocation = (htab->plt->output_section->vma
8671 + htab->plt->output_offset
8672 + ent->plt.offset);
8673 }
8674 }
252b5132 8675
f75e0e33
AM
8676 /* R_PPC_PLTREL24 is rather special. If non-zero, the
8677 addend specifies the GOT pointer offset within .got2.
8678 Don't apply it to the relocation field. */
8679 addend = 0;
8da6118f 8680 break;
252b5132 8681
70bccea4 8682 /* Relocate against _SDA_BASE_. */
7619e7c7 8683 case R_PPC_SDAREL16:
252b5132
RH
8684 {
8685 const char *name;
bd6c6e2b 8686 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 8687
bd6c6e2b
AM
8688 if (sec == NULL
8689 || sec->output_section == NULL
8690 || !is_static_defined (sda))
3b4f3a11
AM
8691 {
8692 unresolved_reloc = TRUE;
8693 break;
8694 }
bd6c6e2b 8695 addend -= SYM_VAL (sda);
3b4f3a11 8696
a0f49396 8697 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26 8698 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 8699 && (name[6] == 0 || name[6] == '.'))
0112cd26 8700 || (CONST_STRNEQ (name, ".sbss")
5f819128 8701 && (name[5] == 0 || name[5] == '.'))))
252b5132 8702 {
25f53a85 8703 info->callbacks->einfo
8de848d8 8704 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8705 "in the wrong output section (%s)\n"),
d003868e 8706 input_bfd,
55fd94b0
AM
8707 sym_name,
8708 howto->name,
8709 name);
252b5132 8710 }
252b5132
RH
8711 }
8712 break;
8713
70bccea4 8714 /* Relocate against _SDA2_BASE_. */
7619e7c7 8715 case R_PPC_EMB_SDA2REL:
252b5132
RH
8716 {
8717 const char *name;
bd6c6e2b 8718 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 8719
bd6c6e2b
AM
8720 if (sec == NULL
8721 || sec->output_section == NULL
8722 || !is_static_defined (sda))
3b4f3a11
AM
8723 {
8724 unresolved_reloc = TRUE;
8725 break;
8726 }
bd6c6e2b 8727 addend -= SYM_VAL (sda);
3b4f3a11 8728
a0f49396 8729 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26
NC
8730 if (! (CONST_STRNEQ (name, ".sdata2")
8731 || CONST_STRNEQ (name, ".sbss2")))
252b5132 8732 {
25f53a85 8733 info->callbacks->einfo
8de848d8 8734 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8735 "in the wrong output section (%s)\n"),
d003868e 8736 input_bfd,
55fd94b0
AM
8737 sym_name,
8738 howto->name,
8739 name);
252b5132 8740 }
252b5132
RH
8741 }
8742 break;
8743
b9c361e0 8744 case R_PPC_VLE_LO16A:
86c95733
AM
8745 relocation = relocation + addend;
8746 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8747 relocation, split16a_type);
b9c361e0
JL
8748 continue;
8749
8750 case R_PPC_VLE_LO16D:
86c95733
AM
8751 relocation = relocation + addend;
8752 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8753 relocation, split16d_type);
b9c361e0
JL
8754 continue;
8755
8756 case R_PPC_VLE_HI16A:
86c95733
AM
8757 relocation = (relocation + addend) >> 16;
8758 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8759 relocation, split16a_type);
b9c361e0
JL
8760 continue;
8761
8762 case R_PPC_VLE_HI16D:
86c95733
AM
8763 relocation = (relocation + addend) >> 16;
8764 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8765 relocation, split16d_type);
b9c361e0
JL
8766 continue;
8767
8768 case R_PPC_VLE_HA16A:
86c95733
AM
8769 relocation = (relocation + addend + 0x8000) >> 16;
8770 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8771 relocation, split16a_type);
b9c361e0
JL
8772 continue;
8773
8774 case R_PPC_VLE_HA16D:
86c95733
AM
8775 relocation = (relocation + addend + 0x8000) >> 16;
8776 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8777 relocation, split16d_type);
b9c361e0
JL
8778 continue;
8779
70bccea4 8780 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 8781 case R_PPC_EMB_SDA21:
b9c361e0 8782 case R_PPC_VLE_SDA21:
7619e7c7 8783 case R_PPC_EMB_RELSDA:
b9c361e0 8784 case R_PPC_VLE_SDA21_LO:
252b5132
RH
8785 {
8786 const char *name;
8787 int reg;
86c95733 8788 unsigned int insn;
bd6c6e2b 8789 struct elf_link_hash_entry *sda = NULL;
252b5132 8790
3b4f3a11
AM
8791 if (sec == NULL || sec->output_section == NULL)
8792 {
8793 unresolved_reloc = TRUE;
8794 break;
8795 }
8796
a0f49396 8797 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26 8798 if (((CONST_STRNEQ (name, ".sdata")
5f819128 8799 && (name[6] == 0 || name[6] == '.'))
0112cd26 8800 || (CONST_STRNEQ (name, ".sbss")
5f819128 8801 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH
8802 {
8803 reg = 13;
bd6c6e2b 8804 sda = htab->sdata[0].sym;
252b5132 8805 }
0112cd26
NC
8806 else if (CONST_STRNEQ (name, ".sdata2")
8807 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH
8808 {
8809 reg = 2;
bd6c6e2b 8810 sda = htab->sdata[1].sym;
252b5132 8811 }
8da6118f
KH
8812 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8813 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
8814 {
8815 reg = 0;
8816 }
252b5132
RH
8817 else
8818 {
25f53a85 8819 info->callbacks->einfo
8de848d8 8820 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8821 "in the wrong output section (%s)\n"),
d003868e 8822 input_bfd,
55fd94b0
AM
8823 sym_name,
8824 howto->name,
8825 name);
252b5132
RH
8826
8827 bfd_set_error (bfd_error_bad_value);
b34976b6 8828 ret = FALSE;
252b5132
RH
8829 continue;
8830 }
8831
bd6c6e2b
AM
8832 if (sda != NULL)
8833 {
8834 if (!is_static_defined (sda))
8835 {
8836 unresolved_reloc = TRUE;
8837 break;
8838 }
8839 addend -= SYM_VAL (sda);
8840 }
8841
86c95733 8842 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
b9c361e0
JL
8843 if (reg == 0
8844 && (r_type == R_PPC_VLE_SDA21
8845 || r_type == R_PPC_VLE_SDA21_LO))
8846 {
86c95733
AM
8847 relocation = relocation + addend;
8848 addend = 0;
8849
8850 /* Force e_li insn, keeping RT from original insn. */
8851 insn &= 0x1f << 21;
8852 insn |= 28u << 26;
8853
8854 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
8855 /* Top 4 bits of value to 17..20. */
8856 insn |= (relocation & 0xf0000) >> 5;
8857 /* Next 5 bits of the value to 11..15. */
8858 insn |= (relocation & 0xf800) << 5;
8859 /* And the final 11 bits of the value to bits 21 to 31. */
8860 insn |= relocation & 0x7ff;
8861
c3301df1
AM
8862 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8863
8864 if (r_type == R_PPC_VLE_SDA21
8865 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
8866 goto overflow;
8867 continue;
b9c361e0
JL
8868 }
8869 else if (r_type == R_PPC_EMB_SDA21
8870 || r_type == R_PPC_VLE_SDA21
8871 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 8872 {
86c95733 8873 /* Fill in register field. */
252b5132 8874 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 8875 }
86c95733 8876 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH
8877 }
8878 break;
8879
b9c361e0
JL
8880 case R_PPC_VLE_SDAREL_LO16A:
8881 case R_PPC_VLE_SDAREL_LO16D:
8882 case R_PPC_VLE_SDAREL_HI16A:
8883 case R_PPC_VLE_SDAREL_HI16D:
8884 case R_PPC_VLE_SDAREL_HA16A:
8885 case R_PPC_VLE_SDAREL_HA16D:
8886 {
8887 bfd_vma value;
8888 const char *name;
8889 //int reg;
8890 struct elf_link_hash_entry *sda = NULL;
8891
8892 if (sec == NULL || sec->output_section == NULL)
8893 {
8894 unresolved_reloc = TRUE;
8895 break;
8896 }
8897
a0f49396 8898 name = bfd_get_section_name (output_bfd, sec->output_section);
b9c361e0
JL
8899 if (((CONST_STRNEQ (name, ".sdata")
8900 && (name[6] == 0 || name[6] == '.'))
8901 || (CONST_STRNEQ (name, ".sbss")
8902 && (name[5] == 0 || name[5] == '.'))))
8903 {
8904 //reg = 13;
8905 sda = htab->sdata[0].sym;
8906 }
8907 else if (CONST_STRNEQ (name, ".sdata2")
8908 || CONST_STRNEQ (name, ".sbss2"))
8909 {
8910 //reg = 2;
8911 sda = htab->sdata[1].sym;
8912 }
8913 else
8914 {
8915 (*_bfd_error_handler)
8916 (_("%B: the target (%s) of a %s relocation is "
8917 "in the wrong output section (%s)"),
8918 input_bfd,
8919 sym_name,
8920 howto->name,
8921 name);
8922
8923 bfd_set_error (bfd_error_bad_value);
8924 ret = FALSE;
8925 continue;
8926 }
8927
8928 if (sda != NULL)
8929 {
8930 if (!is_static_defined (sda))
8931 {
8932 unresolved_reloc = TRUE;
8933 break;
8934 }
8935 }
8936
86c95733
AM
8937 value = (sda->root.u.def.section->output_section->vma
8938 + sda->root.u.def.section->output_offset
8939 + addend);
8940
8941 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8942 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8943 value, split16a_type);
8944 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8945 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8946 value, split16d_type);
8947 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 8948 {
86c95733
AM
8949 value = value >> 16;
8950 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8951 value, split16a_type);
b9c361e0 8952 }
86c95733 8953 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 8954 {
86c95733
AM
8955 value = value >> 16;
8956 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8957 value, split16d_type);
b9c361e0 8958 }
86c95733 8959 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 8960 {
86c95733
AM
8961 value = (value + 0x8000) >> 16;
8962 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8963 value, split16a_type);
b9c361e0 8964 }
86c95733 8965 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 8966 {
86c95733
AM
8967 value = (value + 0x8000) >> 16;
8968 ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
8969 value, split16d_type);
b9c361e0
JL
8970 }
8971 }
8972 continue;
8973
70bccea4 8974 /* Relocate against the beginning of the section. */
7619e7c7
AM
8975 case R_PPC_SECTOFF:
8976 case R_PPC_SECTOFF_LO:
8977 case R_PPC_SECTOFF_HI:
8978 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
8979 if (sec == NULL || sec->output_section == NULL)
8980 {
8981 unresolved_reloc = TRUE;
8982 break;
8983 }
252b5132 8984 addend -= sec->output_section->vma;
252b5132
RH
8985 break;
8986
70bccea4 8987 /* Negative relocations. */
7619e7c7
AM
8988 case R_PPC_EMB_NADDR32:
8989 case R_PPC_EMB_NADDR16:
8990 case R_PPC_EMB_NADDR16_LO:
8991 case R_PPC_EMB_NADDR16_HI:
8992 case R_PPC_EMB_NADDR16_HA:
8da6118f 8993 addend -= 2 * relocation;
252b5132
RH
8994 break;
8995
7619e7c7
AM
8996 case R_PPC_COPY:
8997 case R_PPC_GLOB_DAT:
8998 case R_PPC_JMP_SLOT:
8999 case R_PPC_RELATIVE:
e054468f 9000 case R_PPC_IRELATIVE:
7619e7c7
AM
9001 case R_PPC_PLT32:
9002 case R_PPC_PLTREL32:
9003 case R_PPC_PLT16_LO:
9004 case R_PPC_PLT16_HI:
9005 case R_PPC_PLT16_HA:
9006 case R_PPC_ADDR30:
9007 case R_PPC_EMB_RELSEC16:
9008 case R_PPC_EMB_RELST_LO:
9009 case R_PPC_EMB_RELST_HI:
9010 case R_PPC_EMB_RELST_HA:
9011 case R_PPC_EMB_BIT_FLD:
25f53a85 9012 info->callbacks->einfo
8de848d8 9013 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9014 input_bfd,
7619e7c7
AM
9015 howto->name,
9016 sym_name);
252b5132
RH
9017
9018 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9019 ret = FALSE;
252b5132 9020 continue;
7619e7c7 9021 }
252b5132 9022
7619e7c7
AM
9023 /* Do any further special processing. */
9024 switch (r_type)
9025 {
9026 default:
9027 break;
9028
9029 case R_PPC_ADDR16_HA:
d7128ce4 9030 case R_PPC_REL16_HA:
7619e7c7
AM
9031 case R_PPC_SECTOFF_HA:
9032 case R_PPC_TPREL16_HA:
9033 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9034 case R_PPC_EMB_NADDR16_HA:
9035 case R_PPC_EMB_RELST_HA:
9036 /* It's just possible that this symbol is a weak symbol
7b609f53 9037 that's not actually defined anywhere. In that case,
7619e7c7
AM
9038 'sec' would be NULL, and we should leave the symbol
9039 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9040 if (sec == NULL)
9041 break;
9042 /* Fall thru */
9043
9044 case R_PPC_PLT16_HA:
9045 case R_PPC_GOT16_HA:
9046 case R_PPC_GOT_TLSGD16_HA:
9047 case R_PPC_GOT_TLSLD16_HA:
9048 case R_PPC_GOT_TPREL16_HA:
9049 case R_PPC_GOT_DTPREL16_HA:
9050 /* Add 0x10000 if sign bit in 0:15 is set.
9051 Bits 0:15 are not used. */
9052 addend += 0x8000;
7619e7c7 9053 break;
1fe532cf
AM
9054
9055 case R_PPC_ADDR16:
9056 case R_PPC_ADDR16_LO:
9057 case R_PPC_GOT16:
9058 case R_PPC_GOT16_LO:
9059 case R_PPC_SDAREL16:
9060 case R_PPC_SECTOFF:
9061 case R_PPC_SECTOFF_LO:
9062 case R_PPC_DTPREL16:
9063 case R_PPC_DTPREL16_LO:
9064 case R_PPC_TPREL16:
9065 case R_PPC_TPREL16_LO:
9066 case R_PPC_GOT_TLSGD16:
9067 case R_PPC_GOT_TLSGD16_LO:
9068 case R_PPC_GOT_TLSLD16:
9069 case R_PPC_GOT_TLSLD16_LO:
9070 case R_PPC_GOT_DTPREL16:
9071 case R_PPC_GOT_DTPREL16_LO:
9072 case R_PPC_GOT_TPREL16:
9073 case R_PPC_GOT_TPREL16_LO:
9074 {
9075 /* The 32-bit ABI lacks proper relocations to deal with
9076 certain 64-bit instructions. Prevent damage to bits
9077 that make up part of the insn opcode. */
9078 unsigned int insn, mask, lobit;
9079
9080 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
9081 mask = 0;
9082 if (is_insn_ds_form (insn))
9083 mask = 3;
9084 else if (is_insn_dq_form (insn))
9085 mask = 15;
9086 else
9087 break;
9088 lobit = mask & (relocation + addend);
9089 if (lobit != 0)
9090 {
9091 addend -= lobit;
9092 info->callbacks->einfo
9093 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
9094 input_bfd, input_section, rel->r_offset,
9095 howto->name, sym_name, mask + 1);
9096 bfd_set_error (bfd_error_bad_value);
9097 ret = FALSE;
9098 }
9099 addend += insn & mask;
9100 }
9101 break;
252b5132
RH
9102 }
9103
252b5132 9104#ifdef DEBUG
55fd94b0
AM
9105 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9106 "offset = %ld, addend = %ld\n",
252b5132 9107 howto->name,
8da6118f 9108 (int) r_type,
252b5132
RH
9109 sym_name,
9110 r_symndx,
7619e7c7 9111 (long) rel->r_offset,
8da6118f 9112 (long) addend);
252b5132
RH
9113#endif
9114
7619e7c7
AM
9115 if (unresolved_reloc
9116 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9117 && h->def_dynamic)
9118 && _bfd_elf_section_offset (output_bfd, info, input_section,
9119 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9120 {
25f53a85 9121 info->callbacks->einfo
8de848d8 9122 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9123 input_bfd, input_section, rel->r_offset,
7b609f53 9124 howto->name,
7619e7c7
AM
9125 sym_name);
9126 ret = FALSE;
9127 }
9128
86c95733
AM
9129 /* 16-bit fields in insns mostly have signed values, but a
9130 few insns have 16-bit unsigned values. Really, we should
9131 have different reloc types. */
9132 if (howto->complain_on_overflow != complain_overflow_dont
9133 && howto->dst_mask == 0xffff
9134 && (input_section->flags & SEC_CODE) != 0)
9135 {
9136 enum complain_overflow complain = complain_overflow_signed;
9137
9138 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9139 {
9140 unsigned int insn;
9141
9142 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
9143 if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9144 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9145 || (insn & (0x3f << 26)) == 26u << 26 /* xori */
9146 || (insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9147 complain = complain_overflow_unsigned;
9148 }
9149 if (howto->complain_on_overflow != complain)
9150 {
9151 alt_howto = *howto;
9152 alt_howto.complain_on_overflow = complain;
9153 howto = &alt_howto;
9154 }
9155 }
9156
9157 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9158 rel->r_offset, relocation, addend);
252b5132 9159
7619e7c7 9160 if (r != bfd_reloc_ok)
252b5132 9161 {
7619e7c7 9162 if (r == bfd_reloc_overflow)
252b5132 9163 {
c3301df1 9164 overflow:
7619e7c7
AM
9165 if (warned)
9166 continue;
9167 if (h != NULL
9168 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH
9169 && howto->pc_relative)
9170 {
9171 /* Assume this is a call protected by other code that
9172 detect the symbol is undefined. If this is the case,
9173 we can safely ignore the overflow. If not, the
9174 program is hosed anyway, and a little warning isn't
9175 going to help. */
252b5132 9176
dc1bc0c9
RH
9177 continue;
9178 }
252b5132 9179
7619e7c7 9180 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 9181 (h ? &h->root : NULL),
7619e7c7
AM
9182 sym_name,
9183 howto->name,
9184 rel->r_addend,
9185 input_bfd,
9186 input_section,
9187 rel->r_offset))
9188 return FALSE;
dc1bc0c9
RH
9189 }
9190 else
9191 {
25f53a85 9192 info->callbacks->einfo
8de848d8 9193 (_("%P: %H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9194 input_bfd, input_section, rel->r_offset,
9195 howto->name, sym_name, (int) r);
7619e7c7 9196 ret = FALSE;
252b5132
RH
9197 }
9198 }
9199 }
9200
252b5132
RH
9201#ifdef DEBUG
9202 fprintf (stderr, "\n");
9203#endif
9204
53291d1f
AM
9205 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9206 && input_section->size != input_section->rawsize
9207 && (strcmp (input_section->output_section->name, ".init") == 0
9208 || strcmp (input_section->output_section->name, ".fini") == 0))
9209 {
9210 /* Branch around the trampolines. */
9211 unsigned int insn = B + input_section->size - input_section->rawsize;
9212 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9213 }
9214
5446cbdf 9215 if (htab->params->ppc476_workaround
795bc6b3
AM
9216 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9217 && (!info->relocatable
9218 || (input_section->output_section->alignment_power
9219 >= htab->params->pagesize_p2)))
5446cbdf
AM
9220 {
9221 struct ppc_elf_relax_info *relax_info;
9222 bfd_vma start_addr, end_addr, addr;
795bc6b3 9223 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
9224
9225 relax_info = elf_section_data (input_section)->sec_info;
9226 if (relax_info->workaround_size != 0)
9227 memset (contents + input_section->size - relax_info->workaround_size,
9228 0, relax_info->workaround_size);
9229
9230 /* The idea is: Replace the last instruction on a page with a
9231 branch to a patch area. Put the insn there followed by a
9232 branch back to the next page. Complicated a little by
9233 needing to handle moved conditional branches, and by not
9234 wanting to touch data-in-text. */
9235
9236 start_addr = (input_section->output_section->vma
9237 + input_section->output_offset);
9238 end_addr = (start_addr + input_section->size
9239 - relax_info->workaround_size);
9240 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9241 addr < end_addr;
9242 addr += pagesize)
9243 {
9244 bfd_vma offset = addr - start_addr;
9245 Elf_Internal_Rela *lo, *hi;
9246 bfd_boolean is_data;
9247 bfd_vma patch_off, patch_addr;
9248 unsigned int insn;
9249
9250 /* Do we have a data reloc at this offset? If so, leave
9251 the word alone. */
9252 is_data = FALSE;
9253 lo = relocs;
668e22e5
AM
9254 hi = relend;
9255 rel = NULL;
5446cbdf
AM
9256 while (lo < hi)
9257 {
9258 rel = lo + (hi - lo) / 2;
9259 if (rel->r_offset < offset)
9260 lo = rel + 1;
668e22e5 9261 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9262 hi = rel;
9263 else
9264 {
9265 switch (ELF32_R_TYPE (rel->r_info))
9266 {
9267 case R_PPC_ADDR32:
9268 case R_PPC_UADDR32:
9269 case R_PPC_REL32:
9270 case R_PPC_ADDR30:
9271 is_data = TRUE;
9272 break;
9273 default:
9274 break;
9275 }
9276 break;
9277 }
9278 }
9279 if (is_data)
9280 continue;
9281
9282 /* Some instructions can be left alone too. In this
9283 category are most insns that unconditionally change
9284 control flow, and isync. Of these, some *must* be left
9285 alone, for example, the "bcl 20, 31, label" used in pic
9286 sequences to give the address of the next insn. twui
9287 and twu apparently are not safe. */
9288 insn = bfd_get_32 (input_bfd, contents + offset);
9289 if (insn == 0
9290 || (insn & (0x3f << 26)) == (18u << 26) /* b */
9291 || ((insn & (0x3f << 26)) == (16u << 26) /* bc always */
9292 && (insn & (0x14 << 21)) == (0x14 << 21))
9293 || ((insn & (0x3f << 26)) == (19u << 26) /* blr, bctr */
9294 && (insn & (0x14 << 21)) == (0x14 << 21)
9295 && (insn & (0x1ff << 1)) == (16u << 1))
9296 || (insn & (0x3f << 26)) == (17u << 26) /* sc */
9297 || ((insn & (0x3f << 26)) == (19u << 26)
9298 && ((insn & (0x3ff << 1)) == (38u << 1) /* rfmci */
9299 || (insn & (0x3ff << 1)) == (50u << 1) /* rfi */
9300 || (insn & (0x3ff << 1)) == (51u << 1) /* rfci */
9301 || (insn & (0x3ff << 1)) == (82u << 1) /* rfsvc */
9302 || (insn & (0x3ff << 1)) == (150u << 1))) /* isync */)
9303 continue;
9304
9305 patch_addr = (start_addr + input_section->size
9306 - relax_info->workaround_size);
9307 patch_addr = (patch_addr + 15) & -16;
9308 patch_off = patch_addr - start_addr;
9309 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9310
9311 if (rel != NULL
9312 && rel->r_offset >= offset
9313 && rel->r_offset < offset + 4)
9314 {
9315 /* If the insn we are patching had a reloc, adjust the
9316 reloc r_offset so that the reloc applies to the moved
9317 location. This matters for -r and --emit-relocs. */
9318 if (rel + 1 != relend)
9319 {
9320 Elf_Internal_Rela tmp = *rel;
9321
9322 /* Keep the relocs sorted by r_offset. */
9323 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9324 relend[-1] = tmp;
9325 }
9326 relend[-1].r_offset += patch_off - offset;
9327 }
9328 else
9329 rel = NULL;
9330
5446cbdf
AM
9331 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9332 && (insn & 2) == 0 /* relative */)
9333 {
9334 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9335
9336 delta += offset - patch_off;
668e22e5
AM
9337 if (info->relocatable && rel != NULL)
9338 delta = 0;
9339 if (!info->relocatable && rel != NULL)
9340 {
9341 enum elf_ppc_reloc_type r_type;
9342
9343 r_type = ELF32_R_TYPE (relend[-1].r_info);
9344 if (r_type == R_PPC_REL14_BRTAKEN)
9345 insn |= BRANCH_PREDICT_BIT;
9346 else if (r_type == R_PPC_REL14_BRNTAKEN)
9347 insn &= ~BRANCH_PREDICT_BIT;
9348 else
9349 BFD_ASSERT (r_type == R_PPC_REL14);
9350
9351 if ((r_type == R_PPC_REL14_BRTAKEN
9352 || r_type == R_PPC_REL14_BRNTAKEN)
9353 && delta + 0x8000 < 0x10000
9354 && (bfd_signed_vma) delta < 0)
9355 insn ^= BRANCH_PREDICT_BIT;
9356 }
5446cbdf
AM
9357 if (delta + 0x8000 < 0x10000)
9358 {
9359 bfd_put_32 (input_bfd,
9360 (insn & ~0xfffc) | (delta & 0xfffc),
9361 contents + patch_off);
9362 patch_off += 4;
9363 bfd_put_32 (input_bfd,
9364 B | ((offset + 4 - patch_off) & 0x3fffffc),
9365 contents + patch_off);
9366 patch_off += 4;
9367 }
9368 else
9369 {
668e22e5
AM
9370 if (rel != NULL)
9371 {
9372 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
9373
9374 relend[-1].r_offset += 8;
9375 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
9376 }
5446cbdf
AM
9377 bfd_put_32 (input_bfd,
9378 (insn & ~0xfffc) | 8,
9379 contents + patch_off);
9380 patch_off += 4;
9381 bfd_put_32 (input_bfd,
9382 B | ((offset + 4 - patch_off) & 0x3fffffc),
9383 contents + patch_off);
9384 patch_off += 4;
9385 bfd_put_32 (input_bfd,
9386 B | ((delta - 8) & 0x3fffffc),
9387 contents + patch_off);
9388 patch_off += 4;
9389 }
9390 }
9391 else
9392 {
9393 bfd_put_32 (input_bfd, insn, contents + patch_off);
9394 patch_off += 4;
9395 bfd_put_32 (input_bfd,
9396 B | ((offset + 4 - patch_off) & 0x3fffffc),
9397 contents + patch_off);
9398 patch_off += 4;
9399 }
9400 BFD_ASSERT (patch_off <= input_section->size);
9401 relax_info->workaround_size = input_section->size - patch_off;
9402 }
9403 }
9404
252b5132
RH
9405 return ret;
9406}
252b5132 9407\f
25dbc73a
AM
9408/* Finish up dynamic symbol handling. We set the contents of various
9409 dynamic sections here. */
c5fccbec 9410
b34976b6 9411static bfd_boolean
25dbc73a
AM
9412ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9413 struct bfd_link_info *info,
9414 struct elf_link_hash_entry *h,
9415 Elf_Internal_Sym *sym)
e1a9cb8e 9416{
25dbc73a 9417 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
9418 struct plt_entry *ent;
9419 bfd_boolean doneone;
e1a9cb8e 9420
25dbc73a
AM
9421#ifdef DEBUG
9422 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9423 h->root.root.string);
9424#endif
e1a9cb8e 9425
25dbc73a
AM
9426 htab = ppc_elf_hash_table (info);
9427 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 9428
a6aa5195
AM
9429 doneone = FALSE;
9430 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9431 if (ent->plt.offset != (bfd_vma) -1)
9432 {
9433 if (!doneone)
9434 {
9435 Elf_Internal_Rela rela;
9436 bfd_byte *loc;
9437 bfd_vma reloc_index;
e1a9cb8e 9438
e054468f 9439 if (htab->plt_type == PLT_NEW
25f23106
AM
9440 || !htab->elf.dynamic_sections_created
9441 || h->dynindx == -1)
9d8504b1
PB
9442 reloc_index = ent->plt.offset / 4;
9443 else
9444 {
9445 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9446 / htab->plt_slot_size);
9447 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 9448 && htab->plt_type == PLT_OLD)
9d8504b1
PB
9449 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9450 }
9451
a6aa5195
AM
9452 /* This symbol has an entry in the procedure linkage table.
9453 Set it up. */
e054468f 9454 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
9455 && htab->elf.dynamic_sections_created
9456 && h->dynindx != -1)
a6aa5195 9457 {
9d8504b1
PB
9458 bfd_vma got_offset;
9459 const bfd_vma *plt_entry;
5b914448 9460
9d8504b1
PB
9461 /* The first three entries in .got.plt are reserved. */
9462 got_offset = (reloc_index + 3) * 4;
9463
9464 /* Use the right PLT. */
9465 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9466 : ppc_elf_vxworks_plt_entry;
9467
9468 /* Fill in the .plt on VxWorks. */
9469 if (info->shared)
9470 {
9d8504b1 9471 bfd_put_32 (output_bfd,
e87d4038 9472 plt_entry[0] | PPC_HA (got_offset),
9d8504b1
PB
9473 htab->plt->contents + ent->plt.offset + 0);
9474 bfd_put_32 (output_bfd,
e87d4038 9475 plt_entry[1] | PPC_LO (got_offset),
9d8504b1
PB
9476 htab->plt->contents + ent->plt.offset + 4);
9477 }
9478 else
9479 {
e87d4038 9480 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
9481
9482 bfd_put_32 (output_bfd,
e87d4038 9483 plt_entry[0] | PPC_HA (got_loc),
9d8504b1
PB
9484 htab->plt->contents + ent->plt.offset + 0);
9485 bfd_put_32 (output_bfd,
e87d4038 9486 plt_entry[1] | PPC_LO (got_loc),
9d8504b1
PB
9487 htab->plt->contents + ent->plt.offset + 4);
9488 }
9489
9490 bfd_put_32 (output_bfd, plt_entry[2],
9491 htab->plt->contents + ent->plt.offset + 8);
9492 bfd_put_32 (output_bfd, plt_entry[3],
9493 htab->plt->contents + ent->plt.offset + 12);
9494
9495 /* This instruction is an immediate load. The value loaded is
9496 the byte offset of the R_PPC_JMP_SLOT relocation from the
9497 start of the .rela.plt section. The value is stored in the
9498 low-order 16 bits of the load instruction. */
9499 /* NOTE: It appears that this is now an index rather than a
9500 prescaled offset. */
5b914448 9501 bfd_put_32 (output_bfd,
9d8504b1
PB
9502 plt_entry[4] | reloc_index,
9503 htab->plt->contents + ent->plt.offset + 16);
9504 /* This instruction is a PC-relative branch whose target is
9505 the start of the PLT section. The address of this branch
9506 instruction is 20 bytes beyond the start of this PLT entry.
9507 The address is encoded in bits 6-29, inclusive. The value
9508 stored is right-shifted by two bits, permitting a 26-bit
9509 offset. */
5b914448
AM
9510 bfd_put_32 (output_bfd,
9511 (plt_entry[5]
9d8504b1
PB
9512 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9513 htab->plt->contents + ent->plt.offset + 20);
9514 bfd_put_32 (output_bfd, plt_entry[6],
9515 htab->plt->contents + ent->plt.offset + 24);
9516 bfd_put_32 (output_bfd, plt_entry[7],
9517 htab->plt->contents + ent->plt.offset + 28);
9518
9519 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 9520 the address immediately after the "bctr" instruction
9d8504b1
PB
9521 in this PLT entry. */
9522 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9523 + htab->plt->output_offset
9524 + ent->plt.offset + 16),
9525 htab->sgotplt->contents + got_offset);
9526
9527 if (!info->shared)
9528 {
9529 /* Fill in a couple of entries in .rela.plt.unloaded. */
9530 loc = htab->srelplt2->contents
9531 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9532 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9533 * sizeof (Elf32_External_Rela));
9534
9535 /* Provide the @ha relocation for the first instruction. */
9536 rela.r_offset = (htab->plt->output_section->vma
9537 + htab->plt->output_offset
9538 + ent->plt.offset + 2);
636ce3f5 9539 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
9540 R_PPC_ADDR16_HA);
9541 rela.r_addend = got_offset;
9542 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9543 loc += sizeof (Elf32_External_Rela);
9544
9545 /* Provide the @l relocation for the second instruction. */
9546 rela.r_offset = (htab->plt->output_section->vma
9547 + htab->plt->output_offset
9548 + ent->plt.offset + 6);
636ce3f5 9549 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
9550 R_PPC_ADDR16_LO);
9551 rela.r_addend = got_offset;
9552 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9553 loc += sizeof (Elf32_External_Rela);
9554
9555 /* Provide a relocation for the GOT entry corresponding to this
9556 PLT slot. Point it at the middle of the .plt entry. */
9557 rela.r_offset = (htab->sgotplt->output_section->vma
9558 + htab->sgotplt->output_offset
9559 + got_offset);
7325306f 9560 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
9561 R_PPC_ADDR32);
9562 rela.r_addend = ent->plt.offset + 16;
9563 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9564 }
9565
9566 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9567 In particular, the offset for the relocation is not the
9568 address of the PLT entry for this function, as specified
9569 by the ABI. Instead, the offset is set to the address of
9570 the GOT slot for this function. See EABI 4.4.4.1. */
9571 rela.r_offset = (htab->sgotplt->output_section->vma
9572 + htab->sgotplt->output_offset
9573 + got_offset);
9574
a6aa5195
AM
9575 }
9576 else
9577 {
e054468f 9578 asection *splt = htab->plt;
25f23106
AM
9579 if (!htab->elf.dynamic_sections_created
9580 || h->dynindx == -1)
e054468f
AM
9581 splt = htab->iplt;
9582
9583 rela.r_offset = (splt->output_section->vma
9584 + splt->output_offset
9d8504b1 9585 + ent->plt.offset);
e054468f 9586 if (htab->plt_type == PLT_OLD
25f23106
AM
9587 || !htab->elf.dynamic_sections_created
9588 || h->dynindx == -1)
9d8504b1
PB
9589 {
9590 /* We don't need to fill in the .plt. The ppc dynamic
9591 linker will fill it in. */
9592 }
9593 else
9594 {
9595 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9596 + htab->glink->output_section->vma
9597 + htab->glink->output_offset);
9598 bfd_put_32 (output_bfd, val,
e054468f 9599 splt->contents + ent->plt.offset);
9d8504b1 9600 }
a6aa5195 9601 }
e1a9cb8e 9602
a6aa5195 9603 /* Fill in the entry in the .rela.plt section. */
a6aa5195 9604 rela.r_addend = 0;
e054468f
AM
9605 if (!htab->elf.dynamic_sections_created
9606 || h->dynindx == -1)
9607 {
9608 BFD_ASSERT (h->type == STT_GNU_IFUNC
9609 && h->def_regular
9610 && (h->root.type == bfd_link_hash_defined
9611 || h->root.type == bfd_link_hash_defweak));
9612 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9613 rela.r_addend = SYM_VAL (h);
9614 }
9615 else
9616 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 9617
25f23106
AM
9618 if (!htab->elf.dynamic_sections_created
9619 || h->dynindx == -1)
9620 loc = (htab->reliplt->contents
9621 + (htab->reliplt->reloc_count++
9622 * sizeof (Elf32_External_Rela)));
e054468f 9623 else
25f23106
AM
9624 loc = (htab->relplt->contents
9625 + reloc_index * sizeof (Elf32_External_Rela));
a6aa5195 9626 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 9627
a6aa5195
AM
9628 if (!h->def_regular)
9629 {
0eb4a168
AM
9630 /* Mark the symbol as undefined, rather than as
9631 defined in the .plt section. Leave the value if
9632 there were any relocations where pointer equality
9633 matters (this is a clue for the dynamic linker, to
9634 make function pointer comparisons work between an
9635 application and shared library), otherwise set it
9636 to zero. */
a6aa5195 9637 sym->st_shndx = SHN_UNDEF;
0eb4a168 9638 if (!h->pointer_equality_needed)
a6aa5195 9639 sym->st_value = 0;
0eb4a168
AM
9640 else if (!h->ref_regular_nonweak)
9641 {
625af618
AM
9642 /* This breaks function pointer comparisons, but
9643 that is better than breaking tests for a NULL
0eb4a168 9644 function pointer. */
0eb4a168
AM
9645 sym->st_value = 0;
9646 }
a6aa5195 9647 }
de972ffa
AM
9648 else if (h->type == STT_GNU_IFUNC
9649 && !info->shared)
9650 {
9651 /* Set the value of ifunc symbols in a non-pie
9652 executable to the glink entry. This is to avoid
9653 text relocations. We can't do this for ifunc in
9654 allocate_dynrelocs, as we do for normal dynamic
9655 function symbols with plt entries, because we need
9656 to keep the original value around for the ifunc
9657 relocation. */
9658 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9659 (output_bfd, htab->glink->output_section));
5b914448
AM
9660 sym->st_value = (ent->glink_offset
9661 + htab->glink->output_offset
de972ffa
AM
9662 + htab->glink->output_section->vma);
9663 }
a6aa5195
AM
9664 doneone = TRUE;
9665 }
e1a9cb8e 9666
e054468f 9667 if (htab->plt_type == PLT_NEW
25f23106
AM
9668 || !htab->elf.dynamic_sections_created
9669 || h->dynindx == -1)
a6aa5195 9670 {
a7f2871e 9671 unsigned char *p;
e054468f 9672 asection *splt = htab->plt;
25f23106
AM
9673 if (!htab->elf.dynamic_sections_created
9674 || h->dynindx == -1)
e054468f 9675 splt = htab->iplt;
e1a9cb8e 9676
a7f2871e
AM
9677 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9678
5446cbdf 9679 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
9680 {
9681 bfd_put_32 (output_bfd, LWZ_11_3, p);
9682 p += 4;
9683 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9684 p += 4;
9685 bfd_put_32 (output_bfd, MR_0_3, p);
9686 p += 4;
9687 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9688 p += 4;
9689 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9690 p += 4;
9691 bfd_put_32 (output_bfd, BEQLR, p);
9692 p += 4;
9693 bfd_put_32 (output_bfd, MR_3_0, p);
9694 p += 4;
9695 bfd_put_32 (output_bfd, NOP, p);
9696 p += 4;
9697 }
9698
9699 write_glink_stub (ent, splt, p, info);
e1a9cb8e 9700
a877a2b6 9701 if (!info->shared)
e054468f
AM
9702 /* We only need one non-PIC glink stub. */
9703 break;
a6aa5195
AM
9704 }
9705 else
9706 break;
9707 }
e1a9cb8e 9708
25dbc73a
AM
9709 if (h->needs_copy)
9710 {
9711 asection *s;
9712 Elf_Internal_Rela rela;
9713 bfd_byte *loc;
e1a9cb8e 9714
25dbc73a 9715 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 9716
25dbc73a
AM
9717#ifdef DEBUG
9718 fprintf (stderr, ", copy");
9719#endif
e1a9cb8e 9720
25dbc73a 9721 BFD_ASSERT (h->dynindx != -1);
86bbe32f 9722
4dc4a9a5 9723 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
9724 s = htab->relsbss;
9725 else
9726 s = htab->relbss;
9727 BFD_ASSERT (s != NULL);
e1a9cb8e 9728
e87d4038 9729 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
9730 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9731 rela.r_addend = 0;
9732 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9733 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9734 }
e1a9cb8e 9735
25dbc73a
AM
9736#ifdef DEBUG
9737 fprintf (stderr, "\n");
9738#endif
e1a9cb8e 9739
25dbc73a
AM
9740 return TRUE;
9741}
9742\f
9743static enum elf_reloc_type_class
7e612e98
AM
9744ppc_elf_reloc_type_class (const struct bfd_link_info *info,
9745 const asection *rel_sec,
9746 const Elf_Internal_Rela *rela)
e1a9cb8e 9747{
7e612e98
AM
9748 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
9749
9750 if (rel_sec == htab->reliplt)
9751 return reloc_class_ifunc;
9752
25dbc73a
AM
9753 switch (ELF32_R_TYPE (rela->r_info))
9754 {
9755 case R_PPC_RELATIVE:
9756 return reloc_class_relative;
25dbc73a
AM
9757 case R_PPC_JMP_SLOT:
9758 return reloc_class_plt;
9759 case R_PPC_COPY:
9760 return reloc_class_copy;
9761 default:
9762 return reloc_class_normal;
9763 }
e1a9cb8e 9764}
25dbc73a
AM
9765\f
9766/* Finish up the dynamic sections. */
e1a9cb8e 9767
25dbc73a
AM
9768static bfd_boolean
9769ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9770 struct bfd_link_info *info)
e1a9cb8e 9771{
25dbc73a 9772 asection *sdyn;
9d8504b1 9773 asection *splt;
25dbc73a 9774 struct ppc_elf_link_hash_table *htab;
1fe44d79 9775 bfd_vma got;
e87d4038
AM
9776 bfd *dynobj;
9777 bfd_boolean ret = TRUE;
e1a9cb8e 9778
25dbc73a
AM
9779#ifdef DEBUG
9780 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9781#endif
6b0817e5 9782
25dbc73a 9783 htab = ppc_elf_hash_table (info);
9d8504b1 9784 dynobj = elf_hash_table (info)->dynobj;
3d4d4302 9785 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9d8504b1 9786 if (htab->is_vxworks)
3d4d4302 9787 splt = bfd_get_linker_section (dynobj, ".plt");
9d8504b1
PB
9788 else
9789 splt = NULL;
e1a9cb8e 9790
1fe44d79
AM
9791 got = 0;
9792 if (htab->elf.hgot != NULL)
e87d4038 9793 got = SYM_VAL (htab->elf.hgot);
1fe44d79 9794
25dbc73a 9795 if (htab->elf.dynamic_sections_created)
e1a9cb8e 9796 {
25dbc73a 9797 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 9798
25dbc73a 9799 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 9800
25dbc73a
AM
9801 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9802 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9803 for (; dyncon < dynconend; dyncon++)
9804 {
9805 Elf_Internal_Dyn dyn;
9806 asection *s;
e1a9cb8e 9807
9d8504b1 9808 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 9809
25dbc73a
AM
9810 switch (dyn.d_tag)
9811 {
9812 case DT_PLTGOT:
9d8504b1
PB
9813 if (htab->is_vxworks)
9814 s = htab->sgotplt;
9815 else
9816 s = htab->plt;
25dbc73a
AM
9817 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9818 break;
86bbe32f 9819
25dbc73a
AM
9820 case DT_PLTRELSZ:
9821 dyn.d_un.d_val = htab->relplt->size;
9822 break;
e1a9cb8e 9823
25dbc73a
AM
9824 case DT_JMPREL:
9825 s = htab->relplt;
9826 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9827 break;
2f89ff8d 9828
1fe44d79
AM
9829 case DT_PPC_GOT:
9830 dyn.d_un.d_ptr = got;
d7128ce4
AM
9831 break;
9832
9d8504b1
PB
9833 case DT_RELASZ:
9834 if (htab->is_vxworks)
9835 {
9836 if (htab->relplt)
9837 dyn.d_un.d_ptr -= htab->relplt->size;
9838 break;
9839 }
9840 continue;
9841
25dbc73a 9842 default:
7a2b07ff
NS
9843 if (htab->is_vxworks
9844 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9845 break;
25dbc73a
AM
9846 continue;
9847 }
4c45e5c9 9848
25dbc73a
AM
9849 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9850 }
9851 }
4c45e5c9 9852
3b36f7e6 9853 if (htab->got != NULL)
25dbc73a 9854 {
e79f5955
AM
9855 if (htab->elf.hgot->root.u.def.section == htab->got
9856 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
e87d4038 9857 {
e79f5955 9858 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 9859
e87d4038
AM
9860 p += htab->elf.hgot->root.u.def.value;
9861 if (htab->plt_type == PLT_OLD)
e79f5955
AM
9862 {
9863 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9864 so that a function can easily find the address of
9865 _GLOBAL_OFFSET_TABLE_. */
9866 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9867 < htab->elf.hgot->root.u.def.section->size);
9868 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9869 }
3b36f7e6 9870
e87d4038 9871 if (sdyn != NULL)
e79f5955
AM
9872 {
9873 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9874 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9875 < htab->elf.hgot->root.u.def.section->size);
9876 bfd_put_32 (output_bfd, val, p);
9877 }
e87d4038
AM
9878 }
9879 else
9880 {
8de848d8 9881 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85
AM
9882 htab->elf.hgot->root.root.string,
9883 (htab->sgotplt != NULL
9884 ? htab->sgotplt->name : htab->got->name));
e87d4038
AM
9885 bfd_set_error (bfd_error_bad_value);
9886 ret = FALSE;
9887 }
25dbc73a
AM
9888
9889 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9890 }
9891
9d8504b1
PB
9892 /* Fill in the first entry in the VxWorks procedure linkage table. */
9893 if (splt && splt->size > 0)
9894 {
9895 /* Use the right PLT. */
5b914448
AM
9896 const bfd_vma *plt_entry = (info->shared
9897 ? ppc_elf_vxworks_pic_plt0_entry
9898 : ppc_elf_vxworks_plt0_entry);
9d8504b1
PB
9899
9900 if (!info->shared)
9901 {
e87d4038 9902 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 9903
e87d4038 9904 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 9905 splt->contents + 0);
e87d4038 9906 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
9907 splt->contents + 4);
9908 }
9909 else
9910 {
9911 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9912 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9913 }
9914 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9915 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9916 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9917 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9918 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9919 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9920
9921 if (! info->shared)
9922 {
9923 Elf_Internal_Rela rela;
9924 bfd_byte *loc;
9925
9926 loc = htab->srelplt2->contents;
9927
9928 /* Output the @ha relocation for the first instruction. */
9929 rela.r_offset = (htab->plt->output_section->vma
9930 + htab->plt->output_offset
9931 + 2);
636ce3f5 9932 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
9933 rela.r_addend = 0;
9934 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9935 loc += sizeof (Elf32_External_Rela);
5b914448 9936
9d8504b1
PB
9937 /* Output the @l relocation for the second instruction. */
9938 rela.r_offset = (htab->plt->output_section->vma
9939 + htab->plt->output_offset
9940 + 6);
636ce3f5 9941 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
9942 rela.r_addend = 0;
9943 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9944 loc += sizeof (Elf32_External_Rela);
9945
9946 /* Fix up the remaining relocations. They may have the wrong
9947 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9948 in which symbols were output. */
9949 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9950 {
9951 Elf_Internal_Rela rel;
9952
9953 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 9954 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
9955 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9956 loc += sizeof (Elf32_External_Rela);
9957
9958 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 9959 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
9960 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9961 loc += sizeof (Elf32_External_Rela);
9962
9963 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 9964 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
9965 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9966 loc += sizeof (Elf32_External_Rela);
9967 }
9968 }
9969 }
9970
e054468f
AM
9971 if (htab->glink != NULL
9972 && htab->glink->contents != NULL
9973 && htab->elf.dynamic_sections_created)
d7128ce4
AM
9974 {
9975 unsigned char *p;
9976 unsigned char *endp;
a6aa5195 9977 bfd_vma res0;
d7128ce4 9978 unsigned int i;
a6aa5195
AM
9979
9980 /*
9981 * PIC glink code is the following:
9982 *
9983 * # ith PLT code stub.
9984 * addis 11,30,(plt+(i-1)*4-got)@ha
9985 * lwz 11,(plt+(i-1)*4-got)@l(11)
9986 * mtctr 11
9987 * bctr
9988 *
9989 * # A table of branches, one for each plt entry.
176a0d42 9990 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
9991 * # addresses, so (r11 - res_0) gives the plt index * 4.
9992 * res_0: b PLTresolve
9993 * res_1: b PLTresolve
9994 * .
9995 * # Some number of entries towards the end can be nops
9996 * res_n_m3: nop
9997 * res_n_m2: nop
9998 * res_n_m1:
9999 *
10000 * PLTresolve:
10001 * addis 11,11,(1f-res_0)@ha
10002 * mflr 0
10003 * bcl 20,31,1f
10004 * 1: addi 11,11,(1b-res_0)@l
10005 * mflr 12
10006 * mtlr 0
10007 * sub 11,11,12 # r11 = index * 4
10008 * addis 12,12,(got+4-1b)@ha
10009 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10010 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10011 * mtctr 0
10012 * add 0,11,11
10013 * add 11,0,11 # r11 = index * 12 = reloc offset.
10014 * bctr
10015 */
10016 static const unsigned int pic_plt_resolve[] =
10017 {
10018 ADDIS_11_11,
10019 MFLR_0,
10020 BCL_20_31,
10021 ADDI_11_11,
10022 MFLR_12,
10023 MTLR_0,
10024 SUB_11_11_12,
10025 ADDIS_12_12,
10026 LWZ_0_12,
10027 LWZ_12_12,
10028 MTCTR_0,
10029 ADD_0_11_11,
10030 ADD_11_0_11,
10031 BCTR,
10032 NOP,
10033 NOP
10034 };
10035
176a0d42
AM
10036 /*
10037 * Non-PIC glink code is a little simpler.
10038 *
10039 * # ith PLT code stub.
10040 * lis 11,(plt+(i-1)*4)@ha
10041 * lwz 11,(plt+(i-1)*4)@l(11)
10042 * mtctr 11
10043 * bctr
10044 *
10045 * The branch table is the same, then comes
10046 *
10047 * PLTresolve:
10048 * lis 12,(got+4)@ha
10049 * addis 11,11,(-res_0)@ha
10050 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10051 * addi 11,11,(-res_0)@l # r11 = index * 4
10052 * mtctr 0
10053 * add 0,11,11
10054 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10055 * add 11,0,11 # r11 = index * 12 = reloc offset.
10056 * bctr
10057 */
d7128ce4
AM
10058 static const unsigned int plt_resolve[] =
10059 {
a6aa5195
AM
10060 LIS_12,
10061 ADDIS_11_11,
10062 LWZ_0_12,
10063 ADDI_11_11,
d7128ce4 10064 MTCTR_0,
7e8aeb9a 10065 ADD_0_11_11,
a6aa5195 10066 LWZ_12_12,
7e8aeb9a 10067 ADD_11_0_11,
d7128ce4
AM
10068 BCTR,
10069 NOP,
10070 NOP,
a6aa5195
AM
10071 NOP,
10072 NOP,
10073 NOP,
10074 NOP,
d7128ce4
AM
10075 NOP
10076 };
10077
a6aa5195
AM
10078 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10079 abort ();
10080 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10081 abort ();
10082
a6aa5195 10083 /* Build the branch table, one for each plt entry (less one),
86b9da88 10084 and perhaps some padding. */
a6aa5195
AM
10085 p = htab->glink->contents;
10086 p += htab->glink_pltresolve;
86b9da88
AM
10087 endp = htab->glink->contents;
10088 endp += htab->glink->size - GLINK_PLTRESOLVE;
10089 while (p < endp - 8 * 4)
10090 {
10091 bfd_put_32 (output_bfd, B + endp - p, p);
10092 p += 4;
10093 }
10094 while (p < endp)
10095 {
10096 bfd_put_32 (output_bfd, NOP, p);
10097 p += 4;
10098 }
10099
7e8aeb9a 10100 res0 = (htab->glink_pltresolve
86b9da88
AM
10101 + htab->glink->output_section->vma
10102 + htab->glink->output_offset);
10103
10104 /* Last comes the PLTresolve stub. */
a877a2b6 10105 if (info->shared)
7e8aeb9a 10106 {
a6aa5195 10107 bfd_vma bcl;
d7128ce4 10108
a6aa5195 10109 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10110 {
a6aa5195 10111 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM
10112 p += 4;
10113 }
a6aa5195
AM
10114 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10115
10116 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10117 + htab->glink->output_section->vma
10118 + htab->glink->output_offset);
10119
10120 bfd_put_32 (output_bfd,
10121 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10122 bfd_put_32 (output_bfd,
10123 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10124 bfd_put_32 (output_bfd,
10125 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10126 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10127 {
10128 bfd_put_32 (output_bfd,
10129 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10130 bfd_put_32 (output_bfd,
10131 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10132 }
10133 else
10134 {
10135 bfd_put_32 (output_bfd,
10136 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10137 bfd_put_32 (output_bfd,
10138 LWZ_12_12 + 4, p + 9*4);
10139 }
7e8aeb9a
AM
10140 }
10141 else
d7128ce4 10142 {
a6aa5195 10143 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM
10144 {
10145 bfd_put_32 (output_bfd, plt_resolve[i], p);
10146 p += 4;
10147 }
a6aa5195
AM
10148 p -= 4 * ARRAY_SIZE (plt_resolve);
10149
10150 bfd_put_32 (output_bfd,
10151 LIS_12 + PPC_HA (got + 4), p + 0*4);
10152 bfd_put_32 (output_bfd,
10153 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10154 bfd_put_32 (output_bfd,
10155 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10156 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10157 {
10158 bfd_put_32 (output_bfd,
10159 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10160 bfd_put_32 (output_bfd,
10161 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10162 }
10163 else
10164 {
10165 bfd_put_32 (output_bfd,
10166 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10167 bfd_put_32 (output_bfd,
10168 LWZ_12_12 + 4, p + 6*4);
10169 }
d7128ce4 10170 }
d7128ce4
AM
10171 }
10172
6177242a
AM
10173 if (htab->glink_eh_frame != NULL
10174 && htab->glink_eh_frame->contents != NULL)
10175 {
10176 unsigned char *p = htab->glink_eh_frame->contents;
10177 bfd_vma val;
10178
6177242a
AM
10179 p += sizeof (glink_eh_frame_cie);
10180 /* FDE length. */
6177242a
AM
10181 p += 4;
10182 /* CIE pointer. */
6177242a
AM
10183 p += 4;
10184 /* Offset to .glink. */
10185 val = (htab->glink->output_section->vma
10186 + htab->glink->output_offset);
10187 val -= (htab->glink_eh_frame->output_section->vma
10188 + htab->glink_eh_frame->output_offset);
10189 val -= p - htab->glink_eh_frame->contents;
10190 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10191
dbaa2011 10192 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10193 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10194 htab->glink_eh_frame,
10195 htab->glink_eh_frame->contents))
10196 return FALSE;
10197 }
10198
e87d4038 10199 return ret;
25dbc73a 10200}
e1a9cb8e 10201\f
252b5132
RH
10202#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
10203#define TARGET_LITTLE_NAME "elf32-powerpcle"
10204#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
10205#define TARGET_BIG_NAME "elf32-powerpc"
10206#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10207#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10208#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10209#ifdef __QNXTARGET__
10210#define ELF_MAXPAGESIZE 0x1000
10211#else
252b5132 10212#define ELF_MAXPAGESIZE 0x10000
d0facd1b 10213#endif
b1342370 10214#define ELF_MINPAGESIZE 0x1000
24718e3b 10215#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH
10216#define elf_info_to_howto ppc_elf_info_to_howto
10217
10218#ifdef EM_CYGNUS_POWERPC
10219#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10220#endif
10221
10222#ifdef EM_PPC_OLD
10223#define ELF_MACHINE_ALT2 EM_PPC_OLD
10224#endif
10225
10226#define elf_backend_plt_not_loaded 1
252b5132 10227#define elf_backend_can_gc_sections 1
51b64d56 10228#define elf_backend_can_refcount 1
b491616a 10229#define elf_backend_rela_normal 1
53291d1f 10230#define elf_backend_caches_rawsize 1
252b5132 10231
43c40ab2 10232#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10233#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10234#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10235#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10236#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10237#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10238#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10239#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10240
feee612b 10241#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
10242#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10243#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10244#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10245#define elf_backend_relocate_section ppc_elf_relocate_section
10246#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10247#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 10248#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10249#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10250#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10251#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10252#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10253#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10254#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10255#define elf_backend_fake_sections ppc_elf_fake_sections
10256#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
b9c361e0 10257#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10258#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10259#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10260#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10261#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10262#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10263#define elf_backend_final_write_processing ppc_elf_final_write_processing
10264#define elf_backend_write_section ppc_elf_write_section
551b43fd 10265#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10266#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10267#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10268#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10269#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
b9c361e0 10270#define elf_backend_section_processing ppc_elf_section_processing
252b5132
RH
10271
10272#include "elf32-target.h"
9d8504b1 10273
7b8e7dad
AM
10274/* FreeBSD Target */
10275
10276#undef TARGET_LITTLE_SYM
10277#undef TARGET_LITTLE_NAME
10278
10279#undef TARGET_BIG_SYM
10280#define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
10281#undef TARGET_BIG_NAME
10282#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10283
10284#undef ELF_OSABI
10285#define ELF_OSABI ELFOSABI_FREEBSD
10286
10287#undef elf32_bed
10288#define elf32_bed elf32_powerpc_fbsd_bed
10289
10290#include "elf32-target.h"
10291
9d8504b1
PB
10292/* VxWorks Target */
10293
10294#undef TARGET_LITTLE_SYM
10295#undef TARGET_LITTLE_NAME
10296
10297#undef TARGET_BIG_SYM
10298#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
10299#undef TARGET_BIG_NAME
10300#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10301
7b8e7dad
AM
10302#undef ELF_OSABI
10303
d5e3d971
PB
10304/* VxWorks uses the elf default section flags for .plt. */
10305static const struct bfd_elf_special_section *
10306ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 10307{
d5e3d971
PB
10308 if (sec->name == NULL)
10309 return NULL;
10310
10311 if (strcmp (sec->name, ".plt") == 0)
10312 return _bfd_elf_get_sec_type_attr (abfd, sec);
10313
10314 return ppc_elf_get_sec_type_attr (abfd, sec);
10315}
9d8504b1
PB
10316
10317/* Like ppc_elf_link_hash_table_create, but overrides
10318 appropriately for VxWorks. */
10319static struct bfd_link_hash_table *
10320ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10321{
10322 struct bfd_link_hash_table *ret;
10323
10324 ret = ppc_elf_link_hash_table_create (abfd);
10325 if (ret)
10326 {
10327 struct ppc_elf_link_hash_table *htab
10328 = (struct ppc_elf_link_hash_table *)ret;
10329 htab->is_vxworks = 1;
4a3dc543 10330 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
10331 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10332 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10333 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10334 }
10335 return ret;
10336}
10337
10338/* Tweak magic VxWorks symbols as they are loaded. */
10339static bfd_boolean
10340ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10341 struct bfd_link_info *info,
10342 Elf_Internal_Sym *sym,
10343 const char **namep ATTRIBUTE_UNUSED,
10344 flagword *flagsp ATTRIBUTE_UNUSED,
10345 asection **secp,
10346 bfd_vma *valp)
10347{
10348 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
10349 valp))
10350 return FALSE;
10351
10352 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
10353}
10354
9d8504b1
PB
10355static void
10356ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10357{
10358 ppc_elf_final_write_processing(abfd, linker);
10359 elf_vxworks_final_write_processing(abfd, linker);
10360}
10361
10362/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10363 define it. */
10364#undef elf_backend_want_plt_sym
10365#define elf_backend_want_plt_sym 1
10366#undef elf_backend_want_got_plt
10367#define elf_backend_want_got_plt 1
10368#undef elf_backend_got_symbol_offset
10369#define elf_backend_got_symbol_offset 0
10370#undef elf_backend_plt_not_loaded
10371#define elf_backend_plt_not_loaded 0
10372#undef elf_backend_plt_readonly
10373#define elf_backend_plt_readonly 1
10374#undef elf_backend_got_header_size
10375#define elf_backend_got_header_size 12
10376
468392fb
AM
10377#undef bfd_elf32_get_synthetic_symtab
10378
9d8504b1
PB
10379#undef bfd_elf32_bfd_link_hash_table_create
10380#define bfd_elf32_bfd_link_hash_table_create \
10381 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
10382#undef elf_backend_add_symbol_hook
10383#define elf_backend_add_symbol_hook \
10384 ppc_elf_vxworks_add_symbol_hook
10385#undef elf_backend_link_output_symbol_hook
10386#define elf_backend_link_output_symbol_hook \
9c72ff84 10387 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
10388#undef elf_backend_final_write_processing
10389#define elf_backend_final_write_processing \
10390 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
10391#undef elf_backend_get_sec_type_attr
10392#define elf_backend_get_sec_type_attr \
10393 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
10394#undef elf_backend_emit_relocs
10395#define elf_backend_emit_relocs \
10396 elf_vxworks_emit_relocs
10397
10398#undef elf32_bed
10399#define elf32_bed ppc_elf_vxworks_bed
e054468f 10400#undef elf_backend_post_process_headers
9d8504b1
PB
10401
10402#include "elf32-target.h"
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