Add native target for FreeBSD/arm.
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
2571583a 2 Copyright (C) 1994-2017 Free Software Foundation, Inc.
252b5132
RH
3 Written by Ian Lance Taylor, Cygnus Support.
4
ae9a127f 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
ae9a127f
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
ae9a127f 10 (at your option) any later version.
252b5132 11
ae9a127f
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
ae9a127f 17 You should have received a copy of the GNU General Public License
fc0bffd6 18 along with this program; if not, write to the
3e110533 19 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
53e09e0a 20 Boston, MA 02110-1301, USA. */
252b5132 21
cd123cb7 22
252b5132
RH
23/* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
27
3db64b00 28#include "sysdep.h"
183e98be 29#include <stdarg.h>
252b5132 30#include "bfd.h"
252b5132
RH
31#include "bfdlink.h"
32#include "libbfd.h"
33#include "elf-bfd.h"
34#include "elf/ppc.h"
7619e7c7 35#include "elf32-ppc.h"
9d8504b1 36#include "elf-vxworks.h"
6177242a 37#include "dwarf2.h"
08dc996f 38#include "opcode/ppc.h"
252b5132 39
b9c361e0
JL
40typedef enum split16_format_type
41{
42 split16a_type = 0,
43 split16d_type
44}
45split16_format_type;
46
f0fe0e16 47/* RELA relocations are used here. */
252b5132 48
252b5132 49static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 51static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 53
70bccea4
AM
54/* Branch prediction bit for branch taken relocs. */
55#define BRANCH_PREDICT_BIT 0x200000
56/* Mask to set RA in memory instructions. */
57#define RA_REGISTER_MASK 0x001f0000
58/* Value to shift register by to insert RA. */
59#define RA_REGISTER_SHIFT 16
252b5132
RH
60
61/* The name of the dynamic interpreter. This is put in the .interp
62 section. */
252b5132
RH
63#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
64
d7128ce4 65/* For old-style PLT. */
252b5132
RH
66/* The number of single-slot PLT entries (the rest use two slots). */
67#define PLT_NUM_SINGLE_ENTRIES 8192
68
d7128ce4 69/* For new-style .glink and .plt. */
a6aa5195 70#define GLINK_PLTRESOLVE 16*4
d7128ce4 71#define GLINK_ENTRY_SIZE 4*4
a7f2871e 72#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 73
9d8504b1
PB
74/* VxWorks uses its own plt layout, filled in by the static linker. */
75
76/* The standard VxWorks PLT entry. */
77#define VXWORKS_PLT_ENTRY_SIZE 32
78static const bfd_vma ppc_elf_vxworks_plt_entry
79 [VXWORKS_PLT_ENTRY_SIZE / 4] =
80 {
81 0x3d800000, /* lis r12,0 */
82 0x818c0000, /* lwz r12,0(r12) */
83 0x7d8903a6, /* mtctr r12 */
84 0x4e800420, /* bctr */
85 0x39600000, /* li r11,0 */
86 0x48000000, /* b 14 <.PLT0resolve+0x4> */
87 0x60000000, /* nop */
88 0x60000000, /* nop */
89 };
90static const bfd_vma ppc_elf_vxworks_pic_plt_entry
91 [VXWORKS_PLT_ENTRY_SIZE / 4] =
92 {
93 0x3d9e0000, /* addis r12,r30,0 */
94 0x818c0000, /* lwz r12,0(r12) */
95 0x7d8903a6, /* mtctr r12 */
96 0x4e800420, /* bctr */
97 0x39600000, /* li r11,0 */
98 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
99 0x60000000, /* nop */
100 0x60000000, /* nop */
101 };
102
103/* The initial VxWorks PLT entry. */
104#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
105static const bfd_vma ppc_elf_vxworks_plt0_entry
106 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
107 {
108 0x3d800000, /* lis r12,0 */
109 0x398c0000, /* addi r12,r12,0 */
110 0x800c0008, /* lwz r0,8(r12) */
111 0x7c0903a6, /* mtctr r0 */
112 0x818c0004, /* lwz r12,4(r12) */
113 0x4e800420, /* bctr */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
116 };
117static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
118 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
119 {
120 0x819e0008, /* lwz r12,8(r30) */
121 0x7d8903a6, /* mtctr r12 */
122 0x819e0004, /* lwz r12,4(r30) */
123 0x4e800420, /* bctr */
124 0x60000000, /* nop */
125 0x60000000, /* nop */
126 0x60000000, /* nop */
127 0x60000000, /* nop */
128 };
129
130/* For executables, we have some additional relocations in
131 .rela.plt.unloaded, for the kernel loader. */
132
133/* The number of non-JMP_SLOT relocations per PLT0 slot. */
134#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
135/* The number of relocations in the PLTResolve slot. */
136#define VXWORKS_PLTRESOLVE_RELOCS 2
de194d85 137/* The number of relocations in the PLTResolve slot when creating
9d8504b1
PB
138 a shared library. */
139#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
140
d7128ce4 141/* Some instructions. */
d7128ce4 142#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
143#define ADDIS_11_30 0x3d7e0000
144#define ADDIS_12_12 0x3d8c0000
d7128ce4 145#define ADDI_11_11 0x396b0000
d7128ce4 146#define ADD_0_11_11 0x7c0b5a14
a7f2871e 147#define ADD_3_12_2 0x7c6c1214
d7128ce4 148#define ADD_11_0_11 0x7d605a14
a6aa5195 149#define B 0x48000000
da3a2088 150#define BA 0x48000002
a6aa5195 151#define BCL_20_31 0x429f0005
d7128ce4 152#define BCTR 0x4e800420
a7f2871e
AM
153#define BEQLR 0x4d820020
154#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
155#define LIS_11 0x3d600000
156#define LIS_12 0x3d800000
a6aa5195
AM
157#define LWZU_0_12 0x840c0000
158#define LWZ_0_12 0x800c0000
a7f2871e 159#define LWZ_11_3 0x81630000
a6aa5195
AM
160#define LWZ_11_11 0x816b0000
161#define LWZ_11_30 0x817e0000
a7f2871e 162#define LWZ_12_3 0x81830000
a6aa5195 163#define LWZ_12_12 0x818c0000
a7f2871e
AM
164#define MR_0_3 0x7c601b78
165#define MR_3_0 0x7c030378
a6aa5195
AM
166#define MFLR_0 0x7c0802a6
167#define MFLR_12 0x7d8802a6
168#define MTCTR_0 0x7c0903a6
169#define MTCTR_11 0x7d6903a6
170#define MTLR_0 0x7c0803a6
171#define NOP 0x60000000
172#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
173
174/* Offset of tp and dtp pointers from start of TLS block. */
175#define TP_OFFSET 0x7000
176#define DTP_OFFSET 0x8000
e87d4038
AM
177
178/* The value of a defined global symbol. */
179#define SYM_VAL(SYM) \
180 ((SYM)->root.u.def.section->output_section->vma \
181 + (SYM)->root.u.def.section->output_offset \
182 + (SYM)->root.u.def.value)
7fce784e 183\f
e47cd125 184static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 185
8da6118f 186static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
187 /* This reloc does nothing. */
188 HOWTO (R_PPC_NONE, /* type */
189 0, /* rightshift */
6346d5ca
AM
190 3, /* size (0 = byte, 1 = short, 2 = long) */
191 0, /* bitsize */
b34976b6 192 FALSE, /* pc_relative */
252b5132 193 0, /* bitpos */
86c95733 194 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
195 bfd_elf_generic_reloc, /* special_function */
196 "R_PPC_NONE", /* name */
b34976b6 197 FALSE, /* partial_inplace */
252b5132
RH
198 0, /* src_mask */
199 0, /* dst_mask */
b34976b6 200 FALSE), /* pcrel_offset */
252b5132
RH
201
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC_ADDR32, /* type */
204 0, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 32, /* bitsize */
b34976b6 207 FALSE, /* pc_relative */
252b5132 208 0, /* bitpos */
86c95733 209 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
210 bfd_elf_generic_reloc, /* special_function */
211 "R_PPC_ADDR32", /* name */
b34976b6 212 FALSE, /* partial_inplace */
252b5132
RH
213 0, /* src_mask */
214 0xffffffff, /* dst_mask */
b34976b6 215 FALSE), /* pcrel_offset */
252b5132
RH
216
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC_ADDR24, /* type */
220 0, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 26, /* bitsize */
b34976b6 223 FALSE, /* pc_relative */
252b5132 224 0, /* bitpos */
86c95733 225 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC_ADDR24", /* name */
b34976b6 228 FALSE, /* partial_inplace */
252b5132
RH
229 0, /* src_mask */
230 0x3fffffc, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
252b5132
RH
232
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC_ADDR16, /* type */
235 0, /* rightshift */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
237 16, /* bitsize */
b34976b6 238 FALSE, /* pc_relative */
252b5132
RH
239 0, /* bitpos */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC_ADDR16", /* name */
b34976b6 243 FALSE, /* partial_inplace */
252b5132
RH
244 0, /* src_mask */
245 0xffff, /* dst_mask */
b34976b6 246 FALSE), /* pcrel_offset */
252b5132
RH
247
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC_ADDR16_LO, /* type */
250 0, /* rightshift */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
252 16, /* bitsize */
b34976b6 253 FALSE, /* pc_relative */
252b5132
RH
254 0, /* bitpos */
255 complain_overflow_dont,/* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC_ADDR16_LO", /* name */
b34976b6 258 FALSE, /* partial_inplace */
252b5132
RH
259 0, /* src_mask */
260 0xffff, /* dst_mask */
b34976b6 261 FALSE), /* pcrel_offset */
252b5132
RH
262
263 /* The high order 16 bits of an address. */
264 HOWTO (R_PPC_ADDR16_HI, /* type */
265 16, /* rightshift */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
252b5132
RH
269 0, /* bitpos */
270 complain_overflow_dont, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC_ADDR16_HI", /* name */
b34976b6 273 FALSE, /* partial_inplace */
252b5132
RH
274 0, /* src_mask */
275 0xffff, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
252b5132
RH
277
278 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 279 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
280 HOWTO (R_PPC_ADDR16_HA, /* type */
281 16, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
252b5132
RH
285 0, /* bitpos */
286 complain_overflow_dont, /* complain_on_overflow */
287 ppc_elf_addr16_ha_reloc, /* special_function */
288 "R_PPC_ADDR16_HA", /* name */
b34976b6 289 FALSE, /* partial_inplace */
252b5132
RH
290 0, /* src_mask */
291 0xffff, /* dst_mask */
b34976b6 292 FALSE), /* pcrel_offset */
252b5132
RH
293
294 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC_ADDR14, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 16, /* bitsize */
b34976b6 300 FALSE, /* pc_relative */
252b5132 301 0, /* bitpos */
86c95733 302 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC_ADDR14", /* name */
b34976b6 305 FALSE, /* partial_inplace */
252b5132
RH
306 0, /* src_mask */
307 0xfffc, /* dst_mask */
b34976b6 308 FALSE), /* pcrel_offset */
252b5132
RH
309
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
8da6118f 312 bits must be zero. */
252b5132
RH
313 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
314 0, /* rightshift */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
316 16, /* bitsize */
b34976b6 317 FALSE, /* pc_relative */
252b5132 318 0, /* bitpos */
86c95733 319 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
320 bfd_elf_generic_reloc, /* special_function */
321 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 322 FALSE, /* partial_inplace */
252b5132
RH
323 0, /* src_mask */
324 0xfffc, /* dst_mask */
b34976b6 325 FALSE), /* pcrel_offset */
252b5132
RH
326
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
b34976b6 334 FALSE, /* pc_relative */
252b5132 335 0, /* bitpos */
86c95733 336 complain_overflow_signed, /* complain_on_overflow */
252b5132
RH
337 bfd_elf_generic_reloc, /* special_function */
338 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 339 FALSE, /* partial_inplace */
252b5132
RH
340 0, /* src_mask */
341 0xfffc, /* dst_mask */
b34976b6 342 FALSE), /* pcrel_offset */
252b5132 343
8da6118f 344 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
345 HOWTO (R_PPC_REL24, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 26, /* bitsize */
b34976b6 349 TRUE, /* pc_relative */
252b5132
RH
350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC_REL24", /* name */
b34976b6 354 FALSE, /* partial_inplace */
252b5132
RH
355 0, /* src_mask */
356 0x3fffffc, /* dst_mask */
b34976b6 357 TRUE), /* pcrel_offset */
252b5132 358
8da6118f 359 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
360 HOWTO (R_PPC_REL14, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 16, /* bitsize */
b34976b6 364 TRUE, /* pc_relative */
252b5132
RH
365 0, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_PPC_REL14", /* name */
b34976b6 369 FALSE, /* partial_inplace */
252b5132
RH
370 0, /* src_mask */
371 0xfffc, /* dst_mask */
b34976b6 372 TRUE), /* pcrel_offset */
252b5132 373
8da6118f 374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
375 the branch is expected to be taken. The lower two bits must be
376 zero. */
377 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 TRUE, /* pc_relative */
252b5132
RH
382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 386 FALSE, /* partial_inplace */
252b5132
RH
387 0, /* src_mask */
388 0xfffc, /* dst_mask */
b34976b6 389 TRUE), /* pcrel_offset */
252b5132 390
8da6118f 391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
392 the branch is not expected to be taken. The lower two bits must
393 be zero. */
394 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 16, /* bitsize */
b34976b6 398 TRUE, /* pc_relative */
252b5132
RH
399 0, /* bitpos */
400 complain_overflow_signed, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 403 FALSE, /* partial_inplace */
252b5132
RH
404 0, /* src_mask */
405 0xfffc, /* dst_mask */
b34976b6 406 TRUE), /* pcrel_offset */
252b5132
RH
407
408 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
409 symbol. */
410 HOWTO (R_PPC_GOT16, /* type */
411 0, /* rightshift */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
413 16, /* bitsize */
b34976b6 414 FALSE, /* pc_relative */
252b5132
RH
415 0, /* bitpos */
416 complain_overflow_signed, /* complain_on_overflow */
3ce51288 417 ppc_elf_unhandled_reloc, /* special_function */
252b5132 418 "R_PPC_GOT16", /* name */
b34976b6 419 FALSE, /* partial_inplace */
252b5132
RH
420 0, /* src_mask */
421 0xffff, /* dst_mask */
b34976b6 422 FALSE), /* pcrel_offset */
252b5132
RH
423
424 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
425 the symbol. */
426 HOWTO (R_PPC_GOT16_LO, /* type */
427 0, /* rightshift */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
429 16, /* bitsize */
b34976b6 430 FALSE, /* pc_relative */
252b5132
RH
431 0, /* bitpos */
432 complain_overflow_dont, /* complain_on_overflow */
3ce51288 433 ppc_elf_unhandled_reloc, /* special_function */
252b5132 434 "R_PPC_GOT16_LO", /* name */
b34976b6 435 FALSE, /* partial_inplace */
252b5132
RH
436 0, /* src_mask */
437 0xffff, /* dst_mask */
b34976b6 438 FALSE), /* pcrel_offset */
252b5132
RH
439
440 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
441 the symbol. */
442 HOWTO (R_PPC_GOT16_HI, /* type */
443 16, /* rightshift */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
b34976b6 446 FALSE, /* pc_relative */
252b5132 447 0, /* bitpos */
86c95733 448 complain_overflow_dont, /* complain_on_overflow */
3ce51288 449 ppc_elf_unhandled_reloc, /* special_function */
252b5132 450 "R_PPC_GOT16_HI", /* name */
b34976b6 451 FALSE, /* partial_inplace */
252b5132
RH
452 0, /* src_mask */
453 0xffff, /* dst_mask */
b34976b6 454 FALSE), /* pcrel_offset */
252b5132
RH
455
456 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
457 the symbol. */
458 HOWTO (R_PPC_GOT16_HA, /* type */
459 16, /* rightshift */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
461 16, /* bitsize */
b34976b6 462 FALSE, /* pc_relative */
252b5132 463 0, /* bitpos */
86c95733 464 complain_overflow_dont, /* complain_on_overflow */
3ce51288 465 ppc_elf_unhandled_reloc, /* special_function */
252b5132 466 "R_PPC_GOT16_HA", /* name */
b34976b6 467 FALSE, /* partial_inplace */
252b5132
RH
468 0, /* src_mask */
469 0xffff, /* dst_mask */
b34976b6 470 FALSE), /* pcrel_offset */
252b5132
RH
471
472 /* Like R_PPC_REL24, but referring to the procedure linkage table
473 entry for the symbol. */
474 HOWTO (R_PPC_PLTREL24, /* type */
475 0, /* rightshift */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
477 26, /* bitsize */
b34976b6 478 TRUE, /* pc_relative */
252b5132 479 0, /* bitpos */
3ce51288
AM
480 complain_overflow_signed, /* complain_on_overflow */
481 ppc_elf_unhandled_reloc, /* special_function */
252b5132 482 "R_PPC_PLTREL24", /* name */
b34976b6 483 FALSE, /* partial_inplace */
252b5132
RH
484 0, /* src_mask */
485 0x3fffffc, /* dst_mask */
b34976b6 486 TRUE), /* pcrel_offset */
252b5132
RH
487
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC_COPY, /* type */
494 0, /* rightshift */
495 2, /* size (0 = byte, 1 = short, 2 = long) */
496 32, /* bitsize */
b34976b6 497 FALSE, /* pc_relative */
252b5132 498 0, /* bitpos */
86c95733 499 complain_overflow_dont, /* complain_on_overflow */
3ce51288 500 ppc_elf_unhandled_reloc, /* special_function */
252b5132 501 "R_PPC_COPY", /* name */
b34976b6 502 FALSE, /* partial_inplace */
252b5132
RH
503 0, /* src_mask */
504 0, /* dst_mask */
b34976b6 505 FALSE), /* pcrel_offset */
252b5132
RH
506
507 /* Like R_PPC_ADDR32, but used when setting global offset table
508 entries. */
509 HOWTO (R_PPC_GLOB_DAT, /* type */
510 0, /* rightshift */
511 2, /* size (0 = byte, 1 = short, 2 = long) */
512 32, /* bitsize */
b34976b6 513 FALSE, /* pc_relative */
252b5132 514 0, /* bitpos */
86c95733 515 complain_overflow_dont, /* complain_on_overflow */
3ce51288 516 ppc_elf_unhandled_reloc, /* special_function */
252b5132 517 "R_PPC_GLOB_DAT", /* name */
b34976b6 518 FALSE, /* partial_inplace */
252b5132
RH
519 0, /* src_mask */
520 0xffffffff, /* dst_mask */
b34976b6 521 FALSE), /* pcrel_offset */
252b5132
RH
522
523 /* Marks a procedure linkage table entry for a symbol. */
524 HOWTO (R_PPC_JMP_SLOT, /* type */
525 0, /* rightshift */
526 2, /* size (0 = byte, 1 = short, 2 = long) */
527 32, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
252b5132 529 0, /* bitpos */
86c95733 530 complain_overflow_dont, /* complain_on_overflow */
3ce51288 531 ppc_elf_unhandled_reloc, /* special_function */
252b5132 532 "R_PPC_JMP_SLOT", /* name */
b34976b6 533 FALSE, /* partial_inplace */
252b5132
RH
534 0, /* src_mask */
535 0, /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
252b5132
RH
537
538 /* Used only by the dynamic linker. When the object is run, this
539 longword is set to the load address of the object, plus the
540 addend. */
541 HOWTO (R_PPC_RELATIVE, /* type */
542 0, /* rightshift */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
544 32, /* bitsize */
b34976b6 545 FALSE, /* pc_relative */
252b5132 546 0, /* bitpos */
86c95733 547 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
548 bfd_elf_generic_reloc, /* special_function */
549 "R_PPC_RELATIVE", /* name */
b34976b6 550 FALSE, /* partial_inplace */
252b5132
RH
551 0, /* src_mask */
552 0xffffffff, /* dst_mask */
b34976b6 553 FALSE), /* pcrel_offset */
252b5132
RH
554
555 /* Like R_PPC_REL24, but uses the value of the symbol within the
556 object rather than the final value. Normally used for
557 _GLOBAL_OFFSET_TABLE_. */
558 HOWTO (R_PPC_LOCAL24PC, /* type */
559 0, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 26, /* bitsize */
b34976b6 562 TRUE, /* pc_relative */
252b5132
RH
563 0, /* bitpos */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_PPC_LOCAL24PC", /* name */
b34976b6 567 FALSE, /* partial_inplace */
252b5132
RH
568 0, /* src_mask */
569 0x3fffffc, /* dst_mask */
b34976b6 570 TRUE), /* pcrel_offset */
252b5132
RH
571
572 /* Like R_PPC_ADDR32, but may be unaligned. */
573 HOWTO (R_PPC_UADDR32, /* type */
574 0, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 32, /* bitsize */
b34976b6 577 FALSE, /* pc_relative */
252b5132 578 0, /* bitpos */
86c95733 579 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
580 bfd_elf_generic_reloc, /* special_function */
581 "R_PPC_UADDR32", /* name */
b34976b6 582 FALSE, /* partial_inplace */
252b5132
RH
583 0, /* src_mask */
584 0xffffffff, /* dst_mask */
b34976b6 585 FALSE), /* pcrel_offset */
252b5132
RH
586
587 /* Like R_PPC_ADDR16, but may be unaligned. */
588 HOWTO (R_PPC_UADDR16, /* type */
589 0, /* rightshift */
590 1, /* size (0 = byte, 1 = short, 2 = long) */
591 16, /* bitsize */
b34976b6 592 FALSE, /* pc_relative */
252b5132
RH
593 0, /* bitpos */
594 complain_overflow_bitfield, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_PPC_UADDR16", /* name */
b34976b6 597 FALSE, /* partial_inplace */
252b5132
RH
598 0, /* src_mask */
599 0xffff, /* dst_mask */
b34976b6 600 FALSE), /* pcrel_offset */
252b5132
RH
601
602 /* 32-bit PC relative */
603 HOWTO (R_PPC_REL32, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 32, /* bitsize */
b34976b6 607 TRUE, /* pc_relative */
252b5132 608 0, /* bitpos */
86c95733 609 complain_overflow_dont, /* complain_on_overflow */
252b5132
RH
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC_REL32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
252b5132
RH
613 0, /* src_mask */
614 0xffffffff, /* dst_mask */
b34976b6 615 TRUE), /* pcrel_offset */
252b5132
RH
616
617 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 618 FIXME: not supported. */
252b5132
RH
619 HOWTO (R_PPC_PLT32, /* type */
620 0, /* rightshift */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
622 32, /* bitsize */
b34976b6 623 FALSE, /* pc_relative */
252b5132 624 0, /* bitpos */
86c95733 625 complain_overflow_dont, /* complain_on_overflow */
3ce51288 626 ppc_elf_unhandled_reloc, /* special_function */
252b5132 627 "R_PPC_PLT32", /* name */
b34976b6 628 FALSE, /* partial_inplace */
252b5132
RH
629 0, /* src_mask */
630 0, /* dst_mask */
b34976b6 631 FALSE), /* pcrel_offset */
252b5132
RH
632
633 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 634 FIXME: not supported. */
252b5132
RH
635 HOWTO (R_PPC_PLTREL32, /* type */
636 0, /* rightshift */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
638 32, /* bitsize */
b34976b6 639 TRUE, /* pc_relative */
252b5132 640 0, /* bitpos */
86c95733 641 complain_overflow_dont, /* complain_on_overflow */
3ce51288 642 ppc_elf_unhandled_reloc, /* special_function */
252b5132 643 "R_PPC_PLTREL32", /* name */
b34976b6 644 FALSE, /* partial_inplace */
252b5132
RH
645 0, /* src_mask */
646 0, /* dst_mask */
b34976b6 647 TRUE), /* pcrel_offset */
252b5132
RH
648
649 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
650 the symbol. */
651 HOWTO (R_PPC_PLT16_LO, /* type */
652 0, /* rightshift */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
654 16, /* bitsize */
b34976b6 655 FALSE, /* pc_relative */
252b5132
RH
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
3ce51288 658 ppc_elf_unhandled_reloc, /* special_function */
252b5132 659 "R_PPC_PLT16_LO", /* name */
b34976b6 660 FALSE, /* partial_inplace */
252b5132
RH
661 0, /* src_mask */
662 0xffff, /* dst_mask */
b34976b6 663 FALSE), /* pcrel_offset */
252b5132
RH
664
665 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
666 the symbol. */
667 HOWTO (R_PPC_PLT16_HI, /* type */
668 16, /* rightshift */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
670 16, /* bitsize */
b34976b6 671 FALSE, /* pc_relative */
252b5132 672 0, /* bitpos */
86c95733 673 complain_overflow_dont, /* complain_on_overflow */
3ce51288 674 ppc_elf_unhandled_reloc, /* special_function */
252b5132 675 "R_PPC_PLT16_HI", /* name */
b34976b6 676 FALSE, /* partial_inplace */
252b5132
RH
677 0, /* src_mask */
678 0xffff, /* dst_mask */
b34976b6 679 FALSE), /* pcrel_offset */
252b5132
RH
680
681 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
682 the symbol. */
683 HOWTO (R_PPC_PLT16_HA, /* type */
684 16, /* rightshift */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
686 16, /* bitsize */
b34976b6 687 FALSE, /* pc_relative */
252b5132 688 0, /* bitpos */
86c95733 689 complain_overflow_dont, /* complain_on_overflow */
3ce51288 690 ppc_elf_unhandled_reloc, /* special_function */
252b5132 691 "R_PPC_PLT16_HA", /* name */
b34976b6 692 FALSE, /* partial_inplace */
252b5132
RH
693 0, /* src_mask */
694 0xffff, /* dst_mask */
b34976b6 695 FALSE), /* pcrel_offset */
252b5132
RH
696
697 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
698 small data items. */
699 HOWTO (R_PPC_SDAREL16, /* type */
700 0, /* rightshift */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
702 16, /* bitsize */
b34976b6 703 FALSE, /* pc_relative */
252b5132
RH
704 0, /* bitpos */
705 complain_overflow_signed, /* complain_on_overflow */
3ce51288 706 ppc_elf_unhandled_reloc, /* special_function */
252b5132 707 "R_PPC_SDAREL16", /* name */
b34976b6 708 FALSE, /* partial_inplace */
252b5132
RH
709 0, /* src_mask */
710 0xffff, /* dst_mask */
b34976b6 711 FALSE), /* pcrel_offset */
252b5132 712
c061c2d8 713 /* 16-bit section relative relocation. */
252b5132
RH
714 HOWTO (R_PPC_SECTOFF, /* type */
715 0, /* rightshift */
c061c2d8
AM
716 1, /* size (0 = byte, 1 = short, 2 = long) */
717 16, /* bitsize */
b34976b6 718 FALSE, /* pc_relative */
252b5132 719 0, /* bitpos */
86c95733 720 complain_overflow_signed, /* complain_on_overflow */
3ce51288 721 ppc_elf_unhandled_reloc, /* special_function */
252b5132 722 "R_PPC_SECTOFF", /* name */
b34976b6 723 FALSE, /* partial_inplace */
252b5132 724 0, /* src_mask */
c061c2d8 725 0xffff, /* dst_mask */
b34976b6 726 FALSE), /* pcrel_offset */
252b5132 727
c3668558 728 /* 16-bit lower half section relative relocation. */
252b5132
RH
729 HOWTO (R_PPC_SECTOFF_LO, /* type */
730 0, /* rightshift */
731 1, /* size (0 = byte, 1 = short, 2 = long) */
732 16, /* bitsize */
b34976b6 733 FALSE, /* pc_relative */
252b5132
RH
734 0, /* bitpos */
735 complain_overflow_dont, /* complain_on_overflow */
3ce51288 736 ppc_elf_unhandled_reloc, /* special_function */
252b5132 737 "R_PPC_SECTOFF_LO", /* name */
b34976b6 738 FALSE, /* partial_inplace */
252b5132
RH
739 0, /* src_mask */
740 0xffff, /* dst_mask */
b34976b6 741 FALSE), /* pcrel_offset */
252b5132 742
c3668558 743 /* 16-bit upper half section relative relocation. */
252b5132
RH
744 HOWTO (R_PPC_SECTOFF_HI, /* type */
745 16, /* rightshift */
746 1, /* size (0 = byte, 1 = short, 2 = long) */
747 16, /* bitsize */
b34976b6 748 FALSE, /* pc_relative */
252b5132 749 0, /* bitpos */
86c95733 750 complain_overflow_dont, /* complain_on_overflow */
3ce51288 751 ppc_elf_unhandled_reloc, /* special_function */
252b5132 752 "R_PPC_SECTOFF_HI", /* name */
b34976b6 753 FALSE, /* partial_inplace */
252b5132
RH
754 0, /* src_mask */
755 0xffff, /* dst_mask */
b34976b6 756 FALSE), /* pcrel_offset */
252b5132 757
c3668558 758 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
759 HOWTO (R_PPC_SECTOFF_HA, /* type */
760 16, /* rightshift */
761 1, /* size (0 = byte, 1 = short, 2 = long) */
762 16, /* bitsize */
b34976b6 763 FALSE, /* pc_relative */
252b5132 764 0, /* bitpos */
86c95733 765 complain_overflow_dont, /* complain_on_overflow */
3ce51288 766 ppc_elf_unhandled_reloc, /* special_function */
252b5132 767 "R_PPC_SECTOFF_HA", /* name */
b34976b6 768 FALSE, /* partial_inplace */
252b5132
RH
769 0, /* src_mask */
770 0xffff, /* dst_mask */
b34976b6 771 FALSE), /* pcrel_offset */
252b5132 772
727fc41e 773 /* Marker relocs for TLS. */
7619e7c7 774 HOWTO (R_PPC_TLS,
252b5132
RH
775 0, /* rightshift */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
777 32, /* bitsize */
b34976b6 778 FALSE, /* pc_relative */
252b5132 779 0, /* bitpos */
7619e7c7 780 complain_overflow_dont, /* complain_on_overflow */
252b5132 781 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
782 "R_PPC_TLS", /* name */
783 FALSE, /* partial_inplace */
784 0, /* src_mask */
785 0, /* dst_mask */
786 FALSE), /* pcrel_offset */
787
727fc41e
AM
788 HOWTO (R_PPC_TLSGD,
789 0, /* rightshift */
790 2, /* size (0 = byte, 1 = short, 2 = long) */
791 32, /* bitsize */
792 FALSE, /* pc_relative */
793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC_TLSGD", /* name */
797 FALSE, /* partial_inplace */
798 0, /* src_mask */
799 0, /* dst_mask */
800 FALSE), /* pcrel_offset */
801
802 HOWTO (R_PPC_TLSLD,
803 0, /* rightshift */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
805 32, /* bitsize */
806 FALSE, /* pc_relative */
807 0, /* bitpos */
808 complain_overflow_dont, /* complain_on_overflow */
809 bfd_elf_generic_reloc, /* special_function */
810 "R_PPC_TLSLD", /* name */
811 FALSE, /* partial_inplace */
812 0, /* src_mask */
813 0, /* dst_mask */
814 FALSE), /* pcrel_offset */
815
7619e7c7
AM
816 /* Computes the load module index of the load module that contains the
817 definition of its TLS sym. */
818 HOWTO (R_PPC_DTPMOD32,
819 0, /* rightshift */
820 2, /* size (0 = byte, 1 = short, 2 = long) */
821 32, /* bitsize */
822 FALSE, /* pc_relative */
823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
825 ppc_elf_unhandled_reloc, /* special_function */
826 "R_PPC_DTPMOD32", /* name */
b34976b6 827 FALSE, /* partial_inplace */
252b5132
RH
828 0, /* src_mask */
829 0xffffffff, /* dst_mask */
b34976b6 830 FALSE), /* pcrel_offset */
252b5132 831
7619e7c7
AM
832 /* Computes a dtv-relative displacement, the difference between the value
833 of sym+add and the base address of the thread-local storage block that
834 contains the definition of sym, minus 0x8000. */
835 HOWTO (R_PPC_DTPREL32,
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 32, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_dont, /* complain_on_overflow */
842 ppc_elf_unhandled_reloc, /* special_function */
843 "R_PPC_DTPREL32", /* name */
844 FALSE, /* partial_inplace */
845 0, /* src_mask */
846 0xffffffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848
849 /* A 16 bit dtprel reloc. */
850 HOWTO (R_PPC_DTPREL16,
252b5132
RH
851 0, /* rightshift */
852 1, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
b34976b6 854 FALSE, /* pc_relative */
252b5132 855 0, /* bitpos */
7619e7c7
AM
856 complain_overflow_signed, /* complain_on_overflow */
857 ppc_elf_unhandled_reloc, /* special_function */
858 "R_PPC_DTPREL16", /* name */
b34976b6 859 FALSE, /* partial_inplace */
252b5132
RH
860 0, /* src_mask */
861 0xffff, /* dst_mask */
b34976b6 862 FALSE), /* pcrel_offset */
252b5132 863
7619e7c7
AM
864 /* Like DTPREL16, but no overflow. */
865 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
866 0, /* rightshift */
867 1, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
b34976b6 869 FALSE, /* pc_relative */
252b5132 870 0, /* bitpos */
7619e7c7
AM
871 complain_overflow_dont, /* complain_on_overflow */
872 ppc_elf_unhandled_reloc, /* special_function */
873 "R_PPC_DTPREL16_LO", /* name */
b34976b6 874 FALSE, /* partial_inplace */
252b5132
RH
875 0, /* src_mask */
876 0xffff, /* dst_mask */
b34976b6 877 FALSE), /* pcrel_offset */
252b5132 878
7619e7c7
AM
879 /* Like DTPREL16_LO, but next higher group of 16 bits. */
880 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
881 16, /* rightshift */
882 1, /* size (0 = byte, 1 = short, 2 = long) */
883 16, /* bitsize */
b34976b6 884 FALSE, /* pc_relative */
252b5132
RH
885 0, /* bitpos */
886 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
887 ppc_elf_unhandled_reloc, /* special_function */
888 "R_PPC_DTPREL16_HI", /* name */
b34976b6 889 FALSE, /* partial_inplace */
252b5132
RH
890 0, /* src_mask */
891 0xffff, /* dst_mask */
b34976b6 892 FALSE), /* pcrel_offset */
252b5132 893
7619e7c7
AM
894 /* Like DTPREL16_HI, but adjust for low 16 bits. */
895 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
896 16, /* rightshift */
897 1, /* size (0 = byte, 1 = short, 2 = long) */
898 16, /* bitsize */
b34976b6 899 FALSE, /* pc_relative */
252b5132
RH
900 0, /* bitpos */
901 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
902 ppc_elf_unhandled_reloc, /* special_function */
903 "R_PPC_DTPREL16_HA", /* name */
b34976b6 904 FALSE, /* partial_inplace */
252b5132
RH
905 0, /* src_mask */
906 0xffff, /* dst_mask */
b34976b6 907 FALSE), /* pcrel_offset */
252b5132 908
7619e7c7
AM
909 /* Computes a tp-relative displacement, the difference between the value of
910 sym+add and the value of the thread pointer (r13). */
911 HOWTO (R_PPC_TPREL32,
912 0, /* rightshift */
913 2, /* size (0 = byte, 1 = short, 2 = long) */
914 32, /* bitsize */
915 FALSE, /* pc_relative */
916 0, /* bitpos */
917 complain_overflow_dont, /* complain_on_overflow */
918 ppc_elf_unhandled_reloc, /* special_function */
919 "R_PPC_TPREL32", /* name */
920 FALSE, /* partial_inplace */
921 0, /* src_mask */
922 0xffffffff, /* dst_mask */
923 FALSE), /* pcrel_offset */
924
925 /* A 16 bit tprel reloc. */
926 HOWTO (R_PPC_TPREL16,
252b5132
RH
927 0, /* rightshift */
928 1, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
b34976b6 930 FALSE, /* pc_relative */
252b5132 931 0, /* bitpos */
7619e7c7
AM
932 complain_overflow_signed, /* complain_on_overflow */
933 ppc_elf_unhandled_reloc, /* special_function */
934 "R_PPC_TPREL16", /* name */
b34976b6 935 FALSE, /* partial_inplace */
252b5132
RH
936 0, /* src_mask */
937 0xffff, /* dst_mask */
b34976b6 938 FALSE), /* pcrel_offset */
252b5132 939
7619e7c7
AM
940 /* Like TPREL16, but no overflow. */
941 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
942 0, /* rightshift */
943 1, /* size (0 = byte, 1 = short, 2 = long) */
944 16, /* bitsize */
b34976b6 945 FALSE, /* pc_relative */
252b5132 946 0, /* bitpos */
7619e7c7
AM
947 complain_overflow_dont, /* complain_on_overflow */
948 ppc_elf_unhandled_reloc, /* special_function */
949 "R_PPC_TPREL16_LO", /* name */
b34976b6 950 FALSE, /* partial_inplace */
252b5132
RH
951 0, /* src_mask */
952 0xffff, /* dst_mask */
b34976b6 953 FALSE), /* pcrel_offset */
252b5132 954
7619e7c7
AM
955 /* Like TPREL16_LO, but next higher group of 16 bits. */
956 HOWTO (R_PPC_TPREL16_HI,
957 16, /* rightshift */
958 1, /* size (0 = byte, 1 = short, 2 = long) */
959 16, /* bitsize */
960 FALSE, /* pc_relative */
961 0, /* bitpos */
962 complain_overflow_dont, /* complain_on_overflow */
963 ppc_elf_unhandled_reloc, /* special_function */
964 "R_PPC_TPREL16_HI", /* name */
965 FALSE, /* partial_inplace */
966 0, /* src_mask */
967 0xffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
969
970 /* Like TPREL16_HI, but adjust for low 16 bits. */
971 HOWTO (R_PPC_TPREL16_HA,
972 16, /* rightshift */
973 1, /* size (0 = byte, 1 = short, 2 = long) */
974 16, /* bitsize */
975 FALSE, /* pc_relative */
976 0, /* bitpos */
977 complain_overflow_dont, /* complain_on_overflow */
978 ppc_elf_unhandled_reloc, /* special_function */
979 "R_PPC_TPREL16_HA", /* name */
980 FALSE, /* partial_inplace */
981 0, /* src_mask */
982 0xffff, /* dst_mask */
983 FALSE), /* pcrel_offset */
984
985 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
986 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
987 to the first entry. */
988 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
989 0, /* rightshift */
990 1, /* size (0 = byte, 1 = short, 2 = long) */
991 16, /* bitsize */
b34976b6 992 FALSE, /* pc_relative */
252b5132
RH
993 0, /* bitpos */
994 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
995 ppc_elf_unhandled_reloc, /* special_function */
996 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 997 FALSE, /* partial_inplace */
252b5132
RH
998 0, /* src_mask */
999 0xffff, /* dst_mask */
b34976b6 1000 FALSE), /* pcrel_offset */
252b5132 1001
7619e7c7
AM
1002 /* Like GOT_TLSGD16, but no overflow. */
1003 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1004 0, /* rightshift */
7619e7c7 1005 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1006 16, /* bitsize */
b34976b6 1007 FALSE, /* pc_relative */
252b5132 1008 0, /* bitpos */
7619e7c7
AM
1009 complain_overflow_dont, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc, /* special_function */
1011 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1012 FALSE, /* partial_inplace */
252b5132
RH
1013 0, /* src_mask */
1014 0xffff, /* dst_mask */
b34976b6 1015 FALSE), /* pcrel_offset */
252b5132 1016
7619e7c7
AM
1017 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1018 HOWTO (R_PPC_GOT_TLSGD16_HI,
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 0, /* bitpos */
1024 complain_overflow_dont, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc, /* special_function */
1026 "R_PPC_GOT_TLSGD16_HI", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0xffff, /* dst_mask */
1030 FALSE), /* pcrel_offset */
252b5132 1031
7619e7c7
AM
1032 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1033 HOWTO (R_PPC_GOT_TLSGD16_HA,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1036 16, /* bitsize */
1037 FALSE, /* pc_relative */
1038 0, /* bitpos */
1039 complain_overflow_dont, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc, /* special_function */
1041 "R_PPC_GOT_TLSGD16_HA", /* name */
1042 FALSE, /* partial_inplace */
1043 0, /* src_mask */
1044 0xffff, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1046
1047 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1048 with values (sym+add)@dtpmod and zero, and computes the offset to the
1049 first entry. */
1050 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1051 0, /* rightshift */
1052 1, /* size (0 = byte, 1 = short, 2 = long) */
1053 16, /* bitsize */
7619e7c7 1054 FALSE, /* pc_relative */
252b5132
RH
1055 0, /* bitpos */
1056 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1057 ppc_elf_unhandled_reloc, /* special_function */
1058 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1059 FALSE, /* partial_inplace */
252b5132
RH
1060 0, /* src_mask */
1061 0xffff, /* dst_mask */
b34976b6 1062 FALSE), /* pcrel_offset */
252b5132 1063
7619e7c7
AM
1064 /* Like GOT_TLSLD16, but no overflow. */
1065 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1066 0, /* rightshift */
7619e7c7
AM
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1068 16, /* bitsize */
b34976b6 1069 FALSE, /* pc_relative */
252b5132
RH
1070 0, /* bitpos */
1071 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1072 ppc_elf_unhandled_reloc, /* special_function */
1073 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1074 FALSE, /* partial_inplace */
252b5132 1075 0, /* src_mask */
7619e7c7 1076 0xffff, /* dst_mask */
b34976b6 1077 FALSE), /* pcrel_offset */
252b5132 1078
7619e7c7
AM
1079 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1080 HOWTO (R_PPC_GOT_TLSLD16_HI,
1081 16, /* rightshift */
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1083 16, /* bitsize */
b34976b6 1084 FALSE, /* pc_relative */
252b5132
RH
1085 0, /* bitpos */
1086 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1087 ppc_elf_unhandled_reloc, /* special_function */
1088 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1089 FALSE, /* partial_inplace */
252b5132 1090 0, /* src_mask */
7619e7c7 1091 0xffff, /* dst_mask */
b34976b6 1092 FALSE), /* pcrel_offset */
252b5132 1093
7619e7c7
AM
1094 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSLD16_HA,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc, /* special_function */
1103 "R_PPC_GOT_TLSLD16_HA", /* name */
1104 FALSE, /* partial_inplace */
1105 0, /* src_mask */
1106 0xffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1108
1109 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1110 the offset to the entry. */
1111 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1112 0, /* rightshift */
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 16, /* bitsize */
b34976b6 1115 FALSE, /* pc_relative */
252b5132
RH
1116 0, /* bitpos */
1117 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1118 ppc_elf_unhandled_reloc, /* special_function */
1119 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1120 FALSE, /* partial_inplace */
252b5132
RH
1121 0, /* src_mask */
1122 0xffff, /* dst_mask */
b34976b6 1123 FALSE), /* pcrel_offset */
252b5132 1124
7619e7c7
AM
1125 /* Like GOT_DTPREL16, but no overflow. */
1126 HOWTO (R_PPC_GOT_DTPREL16_LO,
1127 0, /* rightshift */
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 ppc_elf_unhandled_reloc, /* special_function */
1134 "R_PPC_GOT_DTPREL16_LO", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
7619e7c7
AM
1140 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1141 HOWTO (R_PPC_GOT_DTPREL16_HI,
1142 16, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1144 16, /* bitsize */
1145 FALSE, /* pc_relative */
1146 0, /* bitpos */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 ppc_elf_unhandled_reloc, /* special_function */
1149 "R_PPC_GOT_DTPREL16_HI", /* name */
1150 FALSE, /* partial_inplace */
1151 0, /* src_mask */
1152 0xffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
252b5132 1154
7619e7c7
AM
1155 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1156 HOWTO (R_PPC_GOT_DTPREL16_HA,
1157 16, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1159 16, /* bitsize */
1160 FALSE, /* pc_relative */
1161 0, /* bitpos */
1162 complain_overflow_dont, /* complain_on_overflow */
1163 ppc_elf_unhandled_reloc, /* special_function */
1164 "R_PPC_GOT_DTPREL16_HA", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
c3668558 1169
7619e7c7
AM
1170 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1171 offset to the entry. */
1172 HOWTO (R_PPC_GOT_TPREL16,
1173 0, /* rightshift */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1175 16, /* bitsize */
1176 FALSE, /* pc_relative */
1177 0, /* bitpos */
1178 complain_overflow_signed, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc, /* special_function */
1180 "R_PPC_GOT_TPREL16", /* name */
1181 FALSE, /* partial_inplace */
1182 0, /* src_mask */
1183 0xffff, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1185
1186 /* Like GOT_TPREL16, but no overflow. */
1187 HOWTO (R_PPC_GOT_TPREL16_LO,
1188 0, /* rightshift */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 ppc_elf_unhandled_reloc, /* special_function */
1195 "R_PPC_GOT_TPREL16_LO", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1202 HOWTO (R_PPC_GOT_TPREL16_HI,
1203 16, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1205 16, /* bitsize */
1206 FALSE, /* pc_relative */
1207 0, /* bitpos */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 ppc_elf_unhandled_reloc, /* special_function */
1210 "R_PPC_GOT_TPREL16_HI", /* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0xffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1217 HOWTO (R_PPC_GOT_TPREL16_HA,
1218 16, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1220 16, /* bitsize */
1221 FALSE, /* pc_relative */
1222 0, /* bitpos */
1223 complain_overflow_dont, /* complain_on_overflow */
1224 ppc_elf_unhandled_reloc, /* special_function */
1225 "R_PPC_GOT_TPREL16_HA", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0xffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* The remaining relocs are from the Embedded ELF ABI, and are not
1232 in the SVR4 ELF ABI. */
1233
1234 /* 32 bit value resulting from the addend minus the symbol. */
1235 HOWTO (R_PPC_EMB_NADDR32, /* type */
1236 0, /* rightshift */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 32, /* bitsize */
1239 FALSE, /* pc_relative */
1240 0, /* bitpos */
86c95733 1241 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1242 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1243 "R_PPC_EMB_NADDR32", /* name */
1244 FALSE, /* partial_inplace */
1245 0, /* src_mask */
1246 0xffffffff, /* dst_mask */
1247 FALSE), /* pcrel_offset */
1248
1249 /* 16 bit value resulting from the addend minus the symbol. */
1250 HOWTO (R_PPC_EMB_NADDR16, /* type */
1251 0, /* rightshift */
1252 1, /* size (0 = byte, 1 = short, 2 = long) */
1253 16, /* bitsize */
1254 FALSE, /* pc_relative */
1255 0, /* bitpos */
86c95733 1256 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1257 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1258 "R_PPC_EMB_NADDR16", /* name */
1259 FALSE, /* partial_inplace */
1260 0, /* src_mask */
1261 0xffff, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1263
1264 /* 16 bit value resulting from the addend minus the symbol. */
1265 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1266 0, /* rightshift */
1267 1, /* size (0 = byte, 1 = short, 2 = long) */
1268 16, /* bitsize */
1269 FALSE, /* pc_relative */
1270 0, /* bitpos */
1271 complain_overflow_dont,/* complain_on_overflow */
3ce51288 1272 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1273 "R_PPC_EMB_ADDR16_LO", /* name */
1274 FALSE, /* partial_inplace */
1275 0, /* src_mask */
1276 0xffff, /* dst_mask */
1277 FALSE), /* pcrel_offset */
1278
1279 /* The high order 16 bits of the addend minus the symbol. */
1280 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1281 16, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 16, /* bitsize */
1284 FALSE, /* pc_relative */
1285 0, /* bitpos */
1286 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1287 ppc_elf_unhandled_reloc, /* special_function */
7619e7c7
AM
1288 "R_PPC_EMB_NADDR16_HI", /* name */
1289 FALSE, /* partial_inplace */
1290 0, /* src_mask */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1293
1294 /* The high order 16 bits of the result of the addend minus the address,
1295 plus 1 if the contents of the low 16 bits, treated as a signed number,
1296 is negative. */
1297 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1298 16, /* rightshift */
1299 1, /* size (0 = byte, 1 = short, 2 = long) */
1300 16, /* bitsize */
1301 FALSE, /* pc_relative */
1302 0, /* bitpos */
1303 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1304 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1305 "R_PPC_EMB_NADDR16_HA", /* name */
1306 FALSE, /* partial_inplace */
1307 0, /* src_mask */
1308 0xffff, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1310
1311 /* 16 bit value resulting from allocating a 4 byte word to hold an
1312 address in the .sdata section, and returning the offset from
1313 _SDA_BASE_ for that relocation. */
1314 HOWTO (R_PPC_EMB_SDAI16, /* type */
1315 0, /* rightshift */
1316 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 16, /* bitsize */
1318 FALSE, /* pc_relative */
1319 0, /* bitpos */
bd6c6e2b 1320 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1321 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1322 "R_PPC_EMB_SDAI16", /* name */
1323 FALSE, /* partial_inplace */
1324 0, /* src_mask */
1325 0xffff, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* 16 bit value resulting from allocating a 4 byte word to hold an
1329 address in the .sdata2 section, and returning the offset from
1330 _SDA2_BASE_ for that relocation. */
1331 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1332 0, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
bd6c6e2b 1337 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1338 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1339 "R_PPC_EMB_SDA2I16", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1346 small data items. */
1347 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1348 0, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1354 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1355 "R_PPC_EMB_SDA2REL", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1362 signed offset from the appropriate base, and filling in the register
1363 field with the appropriate register (0, 2, or 13). */
1364 HOWTO (R_PPC_EMB_SDA21, /* type */
1365 0, /* rightshift */
1366 2, /* size (0 = byte, 1 = short, 2 = long) */
1367 16, /* bitsize */
1368 FALSE, /* pc_relative */
1369 0, /* bitpos */
1370 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1371 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1372 "R_PPC_EMB_SDA21", /* name */
1373 FALSE, /* partial_inplace */
1374 0, /* src_mask */
1375 0xffff, /* dst_mask */
1376 FALSE), /* pcrel_offset */
1377
1378 /* Relocation not handled: R_PPC_EMB_MRKREF */
1379 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1380 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1381 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1382 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1383 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1384
1385 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1386 in the 16 bit signed offset from the appropriate base, and filling in the
1387 register field with the appropriate register (0, 2, or 13). */
1388 HOWTO (R_PPC_EMB_RELSDA, /* type */
1389 0, /* rightshift */
1390 1, /* size (0 = byte, 1 = short, 2 = long) */
1391 16, /* bitsize */
ddfd6795 1392 FALSE, /* pc_relative */
25dbc73a
AM
1393 0, /* bitpos */
1394 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1395 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a
AM
1396 "R_PPC_EMB_RELSDA", /* name */
1397 FALSE, /* partial_inplace */
1398 0, /* src_mask */
1399 0xffff, /* dst_mask */
1400 FALSE), /* pcrel_offset */
1401
b9c361e0
JL
1402 /* A relative 8 bit branch. */
1403 HOWTO (R_PPC_VLE_REL8, /* type */
1404 1, /* rightshift */
1405 1, /* size (0 = byte, 1 = short, 2 = long) */
1406 8, /* bitsize */
1407 TRUE, /* pc_relative */
1408 0, /* bitpos */
1409 complain_overflow_signed, /* complain_on_overflow */
1410 bfd_elf_generic_reloc, /* special_function */
1411 "R_PPC_VLE_REL8", /* name */
1412 FALSE, /* partial_inplace */
1413 0, /* src_mask */
1414 0xff, /* dst_mask */
1415 TRUE), /* pcrel_offset */
68ffbac6 1416
b9c361e0
JL
1417 /* A relative 15 bit branch. */
1418 HOWTO (R_PPC_VLE_REL15, /* type */
1419 1, /* rightshift */
1420 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 15, /* bitsize */
1422 TRUE, /* pc_relative */
1423 1, /* bitpos */
1424 complain_overflow_signed, /* complain_on_overflow */
1425 bfd_elf_generic_reloc, /* special_function */
1426 "R_PPC_VLE_REL15", /* name */
1427 FALSE, /* partial_inplace */
1428 0, /* src_mask */
dfdaec14 1429 0xfffe, /* dst_mask */
b9c361e0
JL
1430 TRUE), /* pcrel_offset */
1431
68ffbac6 1432 /* A relative 24 bit branch. */
b9c361e0
JL
1433 HOWTO (R_PPC_VLE_REL24, /* type */
1434 1, /* rightshift */
1435 2, /* size (0 = byte, 1 = short, 2 = long) */
1436 24, /* bitsize */
1437 TRUE, /* pc_relative */
1438 1, /* bitpos */
1439 complain_overflow_signed, /* complain_on_overflow */
1440 bfd_elf_generic_reloc, /* special_function */
1441 "R_PPC_VLE_REL24", /* name */
1442 FALSE, /* partial_inplace */
1443 0, /* src_mask */
1444 0x1fffffe, /* dst_mask */
1445 TRUE), /* pcrel_offset */
1446
1447 /* The 16 LSBS in split16a format. */
1448 HOWTO (R_PPC_VLE_LO16A, /* type */
1449 0, /* rightshift */
1450 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1451 16, /* bitsize */
bdaacd3a 1452 FALSE, /* pc_relative */
b9c361e0 1453 0, /* bitpos */
86c95733 1454 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1455 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1456 "R_PPC_VLE_LO16A", /* name */
1457 FALSE, /* partial_inplace */
1458 0, /* src_mask */
08dc996f 1459 0x1f07ff, /* dst_mask */
b9c361e0
JL
1460 FALSE), /* pcrel_offset */
1461
1462 /* The 16 LSBS in split16d format. */
1463 HOWTO (R_PPC_VLE_LO16D, /* type */
1464 0, /* rightshift */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1466 16, /* bitsize */
b9c361e0
JL
1467 FALSE, /* pc_relative */
1468 0, /* bitpos */
86c95733 1469 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1470 ppc_elf_unhandled_reloc, /* special_function */
1471 "R_PPC_VLE_LO16D", /* name */
b9c361e0
JL
1472 FALSE, /* partial_inplace */
1473 0, /* src_mask */
5499c7c7 1474 0x3e007ff, /* dst_mask */
b9c361e0
JL
1475 FALSE), /* pcrel_offset */
1476
1477 /* Bits 16-31 split16a format. */
1478 HOWTO (R_PPC_VLE_HI16A, /* type */
86c95733 1479 16, /* rightshift */
b9c361e0 1480 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1481 16, /* bitsize */
b9c361e0
JL
1482 FALSE, /* pc_relative */
1483 0, /* bitpos */
86c95733 1484 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1485 ppc_elf_unhandled_reloc, /* special_function */
1486 "R_PPC_VLE_HI16A", /* name */
b9c361e0
JL
1487 FALSE, /* partial_inplace */
1488 0, /* src_mask */
08dc996f 1489 0x1f07ff, /* dst_mask */
b9c361e0
JL
1490 FALSE), /* pcrel_offset */
1491
1492 /* Bits 16-31 split16d format. */
1493 HOWTO (R_PPC_VLE_HI16D, /* type */
86c95733 1494 16, /* rightshift */
b9c361e0 1495 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1496 16, /* bitsize */
b9c361e0
JL
1497 FALSE, /* pc_relative */
1498 0, /* bitpos */
86c95733 1499 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1500 ppc_elf_unhandled_reloc, /* special_function */
1501 "R_PPC_VLE_HI16D", /* name */
b9c361e0
JL
1502 FALSE, /* partial_inplace */
1503 0, /* src_mask */
5499c7c7 1504 0x3e007ff, /* dst_mask */
b9c361e0
JL
1505 FALSE), /* pcrel_offset */
1506
1507 /* Bits 16-31 (High Adjusted) in split16a format. */
1508 HOWTO (R_PPC_VLE_HA16A, /* type */
86c95733 1509 16, /* rightshift */
b9c361e0 1510 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1511 16, /* bitsize */
b9c361e0
JL
1512 FALSE, /* pc_relative */
1513 0, /* bitpos */
86c95733 1514 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1515 ppc_elf_unhandled_reloc, /* special_function */
1516 "R_PPC_VLE_HA16A", /* name */
b9c361e0
JL
1517 FALSE, /* partial_inplace */
1518 0, /* src_mask */
08dc996f 1519 0x1f07ff, /* dst_mask */
b9c361e0
JL
1520 FALSE), /* pcrel_offset */
1521
1522 /* Bits 16-31 (High Adjusted) in split16d format. */
1523 HOWTO (R_PPC_VLE_HA16D, /* type */
86c95733 1524 16, /* rightshift */
b9c361e0 1525 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1526 16, /* bitsize */
b9c361e0
JL
1527 FALSE, /* pc_relative */
1528 0, /* bitpos */
86c95733 1529 complain_overflow_dont, /* complain_on_overflow */
3ce51288
AM
1530 ppc_elf_unhandled_reloc, /* special_function */
1531 "R_PPC_VLE_HA16D", /* name */
b9c361e0
JL
1532 FALSE, /* partial_inplace */
1533 0, /* src_mask */
5499c7c7 1534 0x3e007ff, /* dst_mask */
b9c361e0
JL
1535 FALSE), /* pcrel_offset */
1536
86c95733
AM
1537 /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
1538 instructions. If the register base is 0 then the linker changes
1539 the e_add16i to an e_li instruction. */
1540 HOWTO (R_PPC_VLE_SDA21, /* type */
b9c361e0
JL
1541 0, /* rightshift */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1543 16, /* bitsize */
b9c361e0
JL
1544 FALSE, /* pc_relative */
1545 0, /* bitpos */
86c95733 1546 complain_overflow_signed, /* complain_on_overflow */
3ce51288
AM
1547 ppc_elf_unhandled_reloc, /* special_function */
1548 "R_PPC_VLE_SDA21", /* name */
b9c361e0
JL
1549 FALSE, /* partial_inplace */
1550 0, /* src_mask */
1551 0xffff, /* dst_mask */
1552 FALSE), /* pcrel_offset */
1553
86c95733 1554 /* Like R_PPC_VLE_SDA21 but ignore overflow. */
b9c361e0
JL
1555 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1556 0, /* rightshift */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1558 16, /* bitsize */
b9c361e0
JL
1559 FALSE, /* pc_relative */
1560 0, /* bitpos */
86c95733 1561 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1562 ppc_elf_unhandled_reloc, /* special_function */
b9c361e0
JL
1563 "R_PPC_VLE_SDA21_LO", /* name */
1564 FALSE, /* partial_inplace */
1565 0, /* src_mask */
86c95733 1566 0xffff, /* dst_mask */
b9c361e0
JL
1567 FALSE), /* pcrel_offset */
1568
1569 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1570 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1571 0, /* rightshift */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1573 16, /* bitsize */
b9c361e0
JL
1574 FALSE, /* pc_relative */
1575 0, /* bitpos */
3ce51288
AM
1576 complain_overflow_dont, /* complain_on_overflow */
1577 ppc_elf_unhandled_reloc, /* special_function */
1578 "R_PPC_VLE_SDAREL_LO16A", /* name */
b9c361e0
JL
1579 FALSE, /* partial_inplace */
1580 0, /* src_mask */
08dc996f 1581 0x1f07ff, /* dst_mask */
b9c361e0
JL
1582 FALSE), /* pcrel_offset */
1583
1584 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
b9c361e0
JL
1585 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1586 0, /* rightshift */
1587 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1588 16, /* bitsize */
b9c361e0
JL
1589 FALSE, /* pc_relative */
1590 0, /* bitpos */
3ce51288
AM
1591 complain_overflow_dont, /* complain_on_overflow */
1592 ppc_elf_unhandled_reloc, /* special_function */
1593 "R_PPC_VLE_SDAREL_LO16D", /* name */
b9c361e0
JL
1594 FALSE, /* partial_inplace */
1595 0, /* src_mask */
5499c7c7 1596 0x3e007ff, /* dst_mask */
b9c361e0
JL
1597 FALSE), /* pcrel_offset */
1598
1599 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
3ce51288 1600 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
86c95733 1601 16, /* rightshift */
b9c361e0 1602 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1603 16, /* bitsize */
b9c361e0
JL
1604 FALSE, /* pc_relative */
1605 0, /* bitpos */
3ce51288
AM
1606 complain_overflow_dont, /* complain_on_overflow */
1607 ppc_elf_unhandled_reloc, /* special_function */
1608 "R_PPC_VLE_SDAREL_HI16A", /* name */
b9c361e0
JL
1609 FALSE, /* partial_inplace */
1610 0, /* src_mask */
08dc996f 1611 0x1f07ff, /* dst_mask */
b9c361e0
JL
1612 FALSE), /* pcrel_offset */
1613
1614 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
3ce51288 1615 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
86c95733 1616 16, /* rightshift */
b9c361e0 1617 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1618 16, /* bitsize */
b9c361e0
JL
1619 FALSE, /* pc_relative */
1620 0, /* bitpos */
3ce51288
AM
1621 complain_overflow_dont, /* complain_on_overflow */
1622 ppc_elf_unhandled_reloc, /* special_function */
1623 "R_PPC_VLE_SDAREL_HI16D", /* name */
b9c361e0
JL
1624 FALSE, /* partial_inplace */
1625 0, /* src_mask */
5499c7c7 1626 0x3e007ff, /* dst_mask */
b9c361e0
JL
1627 FALSE), /* pcrel_offset */
1628
1629 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
3ce51288 1630 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
86c95733 1631 16, /* rightshift */
b9c361e0 1632 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1633 16, /* bitsize */
b9c361e0
JL
1634 FALSE, /* pc_relative */
1635 0, /* bitpos */
3ce51288
AM
1636 complain_overflow_dont, /* complain_on_overflow */
1637 ppc_elf_unhandled_reloc, /* special_function */
1638 "R_PPC_VLE_SDAREL_HA16A", /* name */
b9c361e0
JL
1639 FALSE, /* partial_inplace */
1640 0, /* src_mask */
08dc996f 1641 0x1f07ff, /* dst_mask */
b9c361e0
JL
1642 FALSE), /* pcrel_offset */
1643
1644 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
3ce51288 1645 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
86c95733 1646 16, /* rightshift */
b9c361e0 1647 2, /* size (0 = byte, 1 = short, 2 = long) */
86c95733 1648 16, /* bitsize */
b9c361e0
JL
1649 FALSE, /* pc_relative */
1650 0, /* bitpos */
3ce51288
AM
1651 complain_overflow_dont, /* complain_on_overflow */
1652 ppc_elf_unhandled_reloc, /* special_function */
1653 "R_PPC_VLE_SDAREL_HA16D", /* name */
b9c361e0
JL
1654 FALSE, /* partial_inplace */
1655 0, /* src_mask */
5499c7c7 1656 0x3e007ff, /* dst_mask */
b9c361e0
JL
1657 FALSE), /* pcrel_offset */
1658
83eef883
AFB
1659 /* e_li split20 format. */
1660 HOWTO (R_PPC_VLE_ADDR20, /* type */
1661 16, /* rightshift */
1662 2, /* size (0 = byte, 1 = short, 2 = long) */
1663 20, /* bitsize */
1664 FALSE, /* pc_relative */
1665 0, /* bitpos */
1666 complain_overflow_dont, /* complain_on_overflow */
1667 bfd_elf_generic_reloc, /* special_function */
1668 "R_PPC_VLE_ADDR20", /* name */
1669 FALSE, /* partial_inplace */
1670 0, /* src_mask */
1671 0x1f07ff, /* dst_mask */
1672 FALSE), /* pcrel_offset */
1673
e054468f
AM
1674 HOWTO (R_PPC_IRELATIVE, /* type */
1675 0, /* rightshift */
1676 2, /* size (0 = byte, 1 = short, 2 = long) */
1677 32, /* bitsize */
1678 FALSE, /* pc_relative */
1679 0, /* bitpos */
86c95733 1680 complain_overflow_dont, /* complain_on_overflow */
3ce51288 1681 ppc_elf_unhandled_reloc, /* special_function */
e054468f
AM
1682 "R_PPC_IRELATIVE", /* name */
1683 FALSE, /* partial_inplace */
1684 0, /* src_mask */
1685 0xffffffff, /* dst_mask */
1686 FALSE), /* pcrel_offset */
1687
d7128ce4
AM
1688 /* A 16 bit relative relocation. */
1689 HOWTO (R_PPC_REL16, /* type */
1690 0, /* rightshift */
1691 1, /* size (0 = byte, 1 = short, 2 = long) */
1692 16, /* bitsize */
1693 TRUE, /* pc_relative */
1694 0, /* bitpos */
86c95733 1695 complain_overflow_signed, /* complain_on_overflow */
d7128ce4
AM
1696 bfd_elf_generic_reloc, /* special_function */
1697 "R_PPC_REL16", /* name */
1698 FALSE, /* partial_inplace */
1699 0, /* src_mask */
1700 0xffff, /* dst_mask */
1701 TRUE), /* pcrel_offset */
1702
1703 /* A 16 bit relative relocation without overflow. */
1704 HOWTO (R_PPC_REL16_LO, /* type */
1705 0, /* rightshift */
1706 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 16, /* bitsize */
1708 TRUE, /* pc_relative */
1709 0, /* bitpos */
1710 complain_overflow_dont,/* complain_on_overflow */
1711 bfd_elf_generic_reloc, /* special_function */
1712 "R_PPC_REL16_LO", /* name */
1713 FALSE, /* partial_inplace */
1714 0, /* src_mask */
1715 0xffff, /* dst_mask */
1716 TRUE), /* pcrel_offset */
1717
1718 /* The high order 16 bits of a relative address. */
1719 HOWTO (R_PPC_REL16_HI, /* type */
1720 16, /* rightshift */
1721 1, /* size (0 = byte, 1 = short, 2 = long) */
1722 16, /* bitsize */
1723 TRUE, /* pc_relative */
1724 0, /* bitpos */
1725 complain_overflow_dont, /* complain_on_overflow */
1726 bfd_elf_generic_reloc, /* special_function */
1727 "R_PPC_REL16_HI", /* name */
1728 FALSE, /* partial_inplace */
1729 0, /* src_mask */
1730 0xffff, /* dst_mask */
1731 TRUE), /* pcrel_offset */
1732
1733 /* The high order 16 bits of a relative address, plus 1 if the contents of
1734 the low 16 bits, treated as a signed number, is negative. */
1735 HOWTO (R_PPC_REL16_HA, /* type */
1736 16, /* rightshift */
1737 1, /* size (0 = byte, 1 = short, 2 = long) */
1738 16, /* bitsize */
1739 TRUE, /* pc_relative */
1740 0, /* bitpos */
1741 complain_overflow_dont, /* complain_on_overflow */
1742 ppc_elf_addr16_ha_reloc, /* special_function */
1743 "R_PPC_REL16_HA", /* name */
1744 FALSE, /* partial_inplace */
1745 0, /* src_mask */
1746 0xffff, /* dst_mask */
1747 TRUE), /* pcrel_offset */
1748
a680de9a
PB
1749 /* Like R_PPC_REL16_HA but for split field in addpcis. */
1750 HOWTO (R_PPC_REL16DX_HA, /* type */
1751 16, /* rightshift */
1752 2, /* size (0 = byte, 1 = short, 2 = long) */
1753 16, /* bitsize */
1754 TRUE, /* pc_relative */
1755 0, /* bitpos */
1756 complain_overflow_signed, /* complain_on_overflow */
1757 ppc_elf_addr16_ha_reloc, /* special_function */
1758 "R_PPC_REL16DX_HA", /* name */
1759 FALSE, /* partial_inplace */
1760 0, /* src_mask */
1761 0x1fffc1, /* dst_mask */
1762 TRUE), /* pcrel_offset */
1763
7ba71655
AM
1764 /* A split-field reloc for addpcis, non-relative (gas internal use only). */
1765 HOWTO (R_PPC_16DX_HA, /* type */
1766 16, /* rightshift */
1767 2, /* size (0 = byte, 1 = short, 2 = long) */
1768 16, /* bitsize */
1769 FALSE, /* pc_relative */
1770 0, /* bitpos */
1771 complain_overflow_signed, /* complain_on_overflow */
1772 ppc_elf_addr16_ha_reloc, /* special_function */
1773 "R_PPC_16DX_HA", /* name */
1774 FALSE, /* partial_inplace */
1775 0, /* src_mask */
1776 0x1fffc1, /* dst_mask */
1777 FALSE), /* pcrel_offset */
1778
25dbc73a
AM
1779 /* GNU extension to record C++ vtable hierarchy. */
1780 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1781 0, /* rightshift */
1782 0, /* size (0 = byte, 1 = short, 2 = long) */
1783 0, /* bitsize */
1784 FALSE, /* pc_relative */
1785 0, /* bitpos */
1786 complain_overflow_dont, /* complain_on_overflow */
1787 NULL, /* special_function */
1788 "R_PPC_GNU_VTINHERIT", /* name */
1789 FALSE, /* partial_inplace */
1790 0, /* src_mask */
1791 0, /* dst_mask */
1792 FALSE), /* pcrel_offset */
1793
1794 /* GNU extension to record C++ vtable member usage. */
1795 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1796 0, /* rightshift */
1797 0, /* size (0 = byte, 1 = short, 2 = long) */
1798 0, /* bitsize */
1799 FALSE, /* pc_relative */
1800 0, /* bitpos */
1801 complain_overflow_dont, /* complain_on_overflow */
1802 NULL, /* special_function */
1803 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1804 FALSE, /* partial_inplace */
1805 0, /* src_mask */
25dbc73a 1806 0, /* dst_mask */
7619e7c7
AM
1807 FALSE), /* pcrel_offset */
1808
25dbc73a
AM
1809 /* Phony reloc to handle AIX style TOC entries. */
1810 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1811 0, /* rightshift */
1812 1, /* size (0 = byte, 1 = short, 2 = long) */
1813 16, /* bitsize */
1814 FALSE, /* pc_relative */
1815 0, /* bitpos */
25dbc73a 1816 complain_overflow_signed, /* complain_on_overflow */
3ce51288 1817 ppc_elf_unhandled_reloc, /* special_function */
25dbc73a 1818 "R_PPC_TOC16", /* name */
7619e7c7
AM
1819 FALSE, /* partial_inplace */
1820 0, /* src_mask */
1821 0xffff, /* dst_mask */
1822 FALSE), /* pcrel_offset */
25dbc73a
AM
1823};
1824\f
1825/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1826
1827static void
1828ppc_elf_howto_init (void)
1829{
1830 unsigned int i, type;
1831
1832 for (i = 0;
1833 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1834 i++)
1835 {
1836 type = ppc_elf_howto_raw[i].type;
1837 if (type >= (sizeof (ppc_elf_howto_table)
1838 / sizeof (ppc_elf_howto_table[0])))
1839 abort ();
1840 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1841 }
1842}
1843
1844static reloc_howto_type *
1845ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1846 bfd_reloc_code_real_type code)
1847{
1848 enum elf_ppc_reloc_type r;
1849
1850 /* Initialize howto table if not already done. */
1851 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1852 ppc_elf_howto_init ();
1853
1854 switch (code)
1855 {
1856 default:
1857 return NULL;
1858
1859 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1860 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1861 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1862 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1863 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1864 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1865 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1866 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1867 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1868 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1869 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1870 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1871 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1872 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1873 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1874 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1875 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1876 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1877 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1878 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1879 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1880 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1881 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1882 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1883 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1884 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1885 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1886 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1887 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1888 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1889 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1890 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1891 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1892 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1893 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1894 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1895 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1896 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1897 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1898 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1899 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1900 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1901 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1902 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1903 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1904 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1905 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1906 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1907 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1908 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1909 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1910 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1911 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1912 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1913 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1914 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1915 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1916 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1917 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1918 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1919 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1920 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1921 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1922 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1923 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1924 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1925 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1926 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1927 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1928 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1929 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1930 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1931 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1932 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1933 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1934 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1935 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1936 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1937 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1938 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1939 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1940 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1941 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1942 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1943 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1944 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1945 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1946 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1947 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1948 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1949 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1950 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1951 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1952 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1953 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1954 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1955 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1956 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1957 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1958 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1959 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1960 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1961 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1962 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1963 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1964 r = R_PPC_VLE_SDAREL_LO16A;
1965 break;
1966 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1967 r = R_PPC_VLE_SDAREL_LO16D;
1968 break;
1969 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1970 r = R_PPC_VLE_SDAREL_HI16A;
1971 break;
1972 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1973 r = R_PPC_VLE_SDAREL_HI16D;
1974 break;
1975 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1976 r = R_PPC_VLE_SDAREL_HA16A;
1977 break;
1978 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1979 r = R_PPC_VLE_SDAREL_HA16D;
1980 break;
d7128ce4
AM
1981 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1982 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1983 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1984 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
7ba71655 1985 case BFD_RELOC_PPC_16DX_HA: r = R_PPC_16DX_HA; break;
a680de9a 1986 case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break;
25dbc73a
AM
1987 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1988 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1989 }
1990
1991 return ppc_elf_howto_table[r];
1992};
1993
157090f7
AM
1994static reloc_howto_type *
1995ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1996 const char *r_name)
1997{
1998 unsigned int i;
1999
2000 for (i = 0;
2001 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2002 i++)
2003 if (ppc_elf_howto_raw[i].name != NULL
2004 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2005 return &ppc_elf_howto_raw[i];
2006
2007 return NULL;
2008}
2009
25dbc73a
AM
2010/* Set the howto pointer for a PowerPC ELF reloc. */
2011
2012static void
4aef7643 2013ppc_elf_info_to_howto (bfd *abfd,
25dbc73a
AM
2014 arelent *cache_ptr,
2015 Elf_Internal_Rela *dst)
2016{
cd21f5da
NC
2017 unsigned int r_type;
2018
25dbc73a
AM
2019 /* Initialize howto table if not already done. */
2020 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2021 ppc_elf_howto_init ();
2022
cd21f5da
NC
2023 r_type = ELF32_R_TYPE (dst->r_info);
2024 if (r_type >= R_PPC_max)
2025 {
695344c0 2026 /* xgettext:c-format */
4eca0228
AM
2027 _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
2028 abfd, r_type);
cd21f5da
NC
2029 bfd_set_error (bfd_error_bad_value);
2030 r_type = R_PPC_NONE;
2031 }
2032 cache_ptr->howto = ppc_elf_howto_table[r_type];
375de94a
AM
2033
2034 /* Just because the above assert didn't trigger doesn't mean that
2035 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2036 if (!cache_ptr->howto)
2037 {
695344c0 2038 /* xgettext:c-format */
4eca0228
AM
2039 _bfd_error_handler (_("%B: invalid relocation type %d"),
2040 abfd, r_type);
375de94a
AM
2041 bfd_set_error (bfd_error_bad_value);
2042
2043 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2044 }
25dbc73a
AM
2045}
2046
d7128ce4 2047/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2048
2049static bfd_reloc_status_type
4aef7643 2050ppc_elf_addr16_ha_reloc (bfd *abfd,
25dbc73a
AM
2051 arelent *reloc_entry,
2052 asymbol *symbol,
4aef7643 2053 void *data,
25dbc73a
AM
2054 asection *input_section,
2055 bfd *output_bfd,
2056 char **error_message ATTRIBUTE_UNUSED)
2057{
a680de9a
PB
2058 enum elf_ppc_reloc_type r_type;
2059 long insn;
2060 bfd_size_type octets;
2061 bfd_vma value;
25dbc73a
AM
2062
2063 if (output_bfd != NULL)
2064 {
2065 reloc_entry->address += input_section->output_offset;
2066 return bfd_reloc_ok;
2067 }
2068
a680de9a
PB
2069 reloc_entry->addend += 0x8000;
2070 r_type = reloc_entry->howto->type;
2071 if (r_type != R_PPC_REL16DX_HA)
2072 return bfd_reloc_continue;
2073
2074 value = 0;
2075 if (!bfd_is_com_section (symbol->section))
2076 value = symbol->value;
2077 value += (reloc_entry->addend
2078 + symbol->section->output_offset
2079 + symbol->section->output_section->vma);
2080 value -= (reloc_entry->address
2081 + input_section->output_offset
2082 + input_section->output_section->vma);
2083 value >>= 16;
2084
2085 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2086 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2087 insn &= ~0x1fffc1;
2088 insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
2089 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2090 return bfd_reloc_ok;
25dbc73a
AM
2091}
2092
2093static bfd_reloc_status_type
2094ppc_elf_unhandled_reloc (bfd *abfd,
2095 arelent *reloc_entry,
2096 asymbol *symbol,
2097 void *data,
2098 asection *input_section,
2099 bfd *output_bfd,
2100 char **error_message)
2101{
2102 /* If this is a relocatable link (output_bfd test tells us), just
2103 call the generic function. Any adjustment will be done at final
2104 link time. */
2105 if (output_bfd != NULL)
2106 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2107 input_section, output_bfd, error_message);
2108
2109 if (error_message != NULL)
2110 {
2111 static char buf[60];
2112 sprintf (buf, _("generic linker can't handle %s"),
2113 reloc_entry->howto->name);
2114 *error_message = buf;
2115 }
2116 return bfd_reloc_dangerous;
2117}
2118\f
2119/* Sections created by the linker. */
2120
2121typedef struct elf_linker_section
2122{
c9a2f333 2123 /* Pointer to the bfd section. */
25dbc73a 2124 asection *section;
c9a2f333
AM
2125 /* Section name. */
2126 const char *name;
2127 /* Associated bss section name. */
2128 const char *bss_name;
2129 /* Associated symbol name. */
2130 const char *sym_name;
046183de
AM
2131 /* Associated symbol. */
2132 struct elf_link_hash_entry *sym;
25dbc73a
AM
2133} elf_linker_section_t;
2134
2135/* Linked list of allocated pointer entries. This hangs off of the
2136 symbol lists, and provides allows us to return different pointers,
2137 based on different addend's. */
2138
2139typedef struct elf_linker_section_pointers
2140{
2141 /* next allocated pointer for this symbol */
2142 struct elf_linker_section_pointers *next;
2143 /* offset of pointer from beginning of section */
2144 bfd_vma offset;
2145 /* addend used */
2146 bfd_vma addend;
2147 /* which linker section this is */
2148 elf_linker_section_t *lsect;
25dbc73a
AM
2149} elf_linker_section_pointers_t;
2150
2151struct ppc_elf_obj_tdata
2152{
2153 struct elf_obj_tdata elf;
2154
2155 /* A mapping from local symbols to offsets into the various linker
2156 sections added. This is index by the symbol index. */
2157 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2158
2159 /* Flags used to auto-detect plt type. */
2160 unsigned int makes_plt_call : 1;
2161 unsigned int has_rel16 : 1;
25dbc73a
AM
2162};
2163
2164#define ppc_elf_tdata(bfd) \
2165 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2166
25dbc73a
AM
2167#define elf_local_ptr_offsets(bfd) \
2168 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2169
0c8d6e5c
AM
2170#define is_ppc_elf(bfd) \
2171 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2172 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2173
25dbc73a 2174/* Override the generic function because we store some extras. */
7619e7c7 2175
25dbc73a
AM
2176static bfd_boolean
2177ppc_elf_mkobject (bfd *abfd)
2178{
0ffa91dd 2179 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2180 PPC32_ELF_DATA);
25dbc73a 2181}
7619e7c7 2182
14b57c7c
AM
2183/* When defaulting arch/mach, decode apuinfo to find a better match. */
2184
2185bfd_boolean
2186_bfd_elf_ppc_set_arch (bfd *abfd)
2187{
2188 unsigned long mach = 0;
2189 asection *s;
2190 unsigned char *contents;
2191
2192 if (abfd->arch_info->bits_per_word == 32
2193 && bfd_big_endian (abfd))
2194 {
2195
2196 for (s = abfd->sections; s != NULL; s = s->next)
2197 if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
2198 break;
2199 if (s != NULL)
2200 mach = bfd_mach_ppc_vle;
2201 }
2202
2203 if (mach == 0)
2204 {
2205 s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2206 if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
2207 {
2208 unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
2209 unsigned int i;
2210
2211 for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
2212 {
2213 unsigned int val = bfd_get_32 (abfd, contents + i);
2214 switch (val >> 16)
2215 {
2216 case PPC_APUINFO_PMR:
2217 case PPC_APUINFO_RFMCI:
2218 if (mach == 0)
2219 mach = bfd_mach_ppc_titan;
2220 break;
2221
2222 case PPC_APUINFO_ISEL:
2223 case PPC_APUINFO_CACHELCK:
2224 if (mach == bfd_mach_ppc_titan)
2225 mach = bfd_mach_ppc_e500mc;
2226 break;
2227
2228 case PPC_APUINFO_SPE:
2229 case PPC_APUINFO_EFS:
2230 case PPC_APUINFO_BRLOCK:
2231 if (mach != bfd_mach_ppc_vle)
2232 mach = bfd_mach_ppc_e500;
8941017b 2233 break;
14b57c7c
AM
2234
2235 case PPC_APUINFO_VLE:
2236 mach = bfd_mach_ppc_vle;
2237 break;
2238
2239 default:
2240 mach = -1ul;
2241 }
2242 }
2243 free (contents);
2244 }
2245 }
2246
2247 if (mach != 0 && mach != -1ul)
2248 {
2249 const bfd_arch_info_type *arch;
2250
2251 for (arch = abfd->arch_info->next; arch; arch = arch->next)
2252 if (arch->mach == mach)
2253 {
2254 abfd->arch_info = arch;
2255 break;
2256 }
2257 }
2258 return TRUE;
2259}
2260
25dbc73a 2261/* Fix bad default arch selected for a 32 bit input bfd when the
14b57c7c 2262 default is 64 bit. Also select arch based on apuinfo. */
7619e7c7 2263
25dbc73a
AM
2264static bfd_boolean
2265ppc_elf_object_p (bfd *abfd)
2266{
14b57c7c
AM
2267 if (!abfd->arch_info->the_default)
2268 return TRUE;
2269
2270 if (abfd->arch_info->bits_per_word == 64)
25dbc73a
AM
2271 {
2272 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2273
25dbc73a
AM
2274 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2275 {
2276 /* Relies on arch after 64 bit default being 32 bit default. */
2277 abfd->arch_info = abfd->arch_info->next;
2278 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2279 }
2280 }
14b57c7c 2281 return _bfd_elf_ppc_set_arch (abfd);
25dbc73a 2282}
7619e7c7 2283
25dbc73a 2284/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2285
25dbc73a
AM
2286static bfd_boolean
2287ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2288{
2289 BFD_ASSERT (!elf_flags_init (abfd)
2290 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2291
25dbc73a
AM
2292 elf_elfheader (abfd)->e_flags = flags;
2293 elf_flags_init (abfd) = TRUE;
2294 return TRUE;
2295}
2296
25dbc73a 2297/* Support for core dump NOTE sections. */
deaaf2f3 2298
b34976b6 2299static bfd_boolean
25dbc73a 2300ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2301{
25dbc73a
AM
2302 int offset;
2303 unsigned int size;
252b5132 2304
25dbc73a
AM
2305 switch (note->descsz)
2306 {
2307 default:
2308 return FALSE;
252b5132 2309
25dbc73a
AM
2310 case 268: /* Linux/PPC. */
2311 /* pr_cursig */
228e534f 2312 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2313
25dbc73a 2314 /* pr_pid */
228e534f 2315 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2316
25dbc73a
AM
2317 /* pr_reg */
2318 offset = 72;
2319 size = 192;
deaaf2f3 2320
25dbc73a
AM
2321 break;
2322 }
deaaf2f3 2323
25dbc73a
AM
2324 /* Make a ".reg/999" section. */
2325 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2326 size, note->descpos + offset);
2327}
252b5132 2328
25dbc73a
AM
2329static bfd_boolean
2330ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2331{
2332 switch (note->descsz)
deaaf2f3 2333 {
25dbc73a
AM
2334 default:
2335 return FALSE;
deaaf2f3 2336
25dbc73a 2337 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2338 elf_tdata (abfd)->core->pid
bc989cdc 2339 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2340 elf_tdata (abfd)->core->program
25dbc73a 2341 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2342 elf_tdata (abfd)->core->command
25dbc73a
AM
2343 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2344 }
9abc968f 2345
25dbc73a
AM
2346 /* Note that for some reason, a spurious space is tacked
2347 onto the end of the args in some (at least one anyway)
2348 implementations, so strip it off if it exists. */
70bccea4 2349
25dbc73a 2350 {
228e534f 2351 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2352 int n = strlen (command);
70bccea4 2353
25dbc73a
AM
2354 if (0 < n && command[n - 1] == ' ')
2355 command[n - 1] = '\0';
2356 }
deaaf2f3 2357
25dbc73a
AM
2358 return TRUE;
2359}
deaaf2f3 2360
183e98be
AM
2361static char *
2362ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2363{
2364 switch (note_type)
2365 {
2366 default:
2367 return NULL;
2368
2369 case NT_PRPSINFO:
2370 {
2371 char data[128];
2372 va_list ap;
2373
2374 va_start (ap, note_type);
75cd47ed 2375 memset (data, 0, sizeof (data));
183e98be
AM
2376 strncpy (data + 32, va_arg (ap, const char *), 16);
2377 strncpy (data + 48, va_arg (ap, const char *), 80);
2378 va_end (ap);
2379 return elfcore_write_note (abfd, buf, bufsiz,
2380 "CORE", note_type, data, sizeof (data));
2381 }
2382
2383 case NT_PRSTATUS:
2384 {
2385 char data[268];
2386 va_list ap;
2387 long pid;
2388 int cursig;
2389 const void *greg;
2390
2391 va_start (ap, note_type);
2392 memset (data, 0, 72);
2393 pid = va_arg (ap, long);
2394 bfd_put_32 (abfd, pid, data + 24);
2395 cursig = va_arg (ap, int);
2396 bfd_put_16 (abfd, cursig, data + 12);
2397 greg = va_arg (ap, const void *);
2398 memcpy (data + 72, greg, 192);
2399 memset (data + 264, 0, 4);
2400 va_end (ap);
2401 return elfcore_write_note (abfd, buf, bufsiz,
2402 "CORE", note_type, data, sizeof (data));
2403 }
2404 }
2405}
2406
b9c361e0 2407static flagword
68ffbac6 2408ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2409{
2410
2411 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2412 return SHF_PPC_VLE;
2413
2414 return 0;
2415}
2416
25dbc73a
AM
2417/* Return address for Ith PLT stub in section PLT, for relocation REL
2418 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2419
25dbc73a
AM
2420static bfd_vma
2421ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2422 const asection *plt ATTRIBUTE_UNUSED,
2423 const arelent *rel)
2424{
2425 return rel->address;
2426}
deaaf2f3 2427
25dbc73a 2428/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2429 is called when bfd_section_from_shdr finds a section with an unknown
2430 type. */
deaaf2f3 2431
25dbc73a 2432static bfd_boolean
6dc132d9
L
2433ppc_elf_section_from_shdr (bfd *abfd,
2434 Elf_Internal_Shdr *hdr,
2435 const char *name,
2436 int shindex)
25dbc73a
AM
2437{
2438 asection *newsect;
2439 flagword flags;
d1c6de6f 2440
6dc132d9 2441 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2442 return FALSE;
deaaf2f3 2443
25dbc73a
AM
2444 newsect = hdr->bfd_section;
2445 flags = bfd_get_section_flags (abfd, newsect);
2446 if (hdr->sh_flags & SHF_EXCLUDE)
2447 flags |= SEC_EXCLUDE;
9abc968f 2448
25dbc73a
AM
2449 if (hdr->sh_type == SHT_ORDERED)
2450 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2451
25dbc73a
AM
2452 bfd_set_section_flags (abfd, newsect, flags);
2453 return TRUE;
2454}
2455
2456/* Set up any other section flags and such that may be necessary. */
2457
2458static bfd_boolean
2459ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2460 Elf_Internal_Shdr *shdr,
2461 asection *asect)
2462{
25dbc73a
AM
2463 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2464 shdr->sh_type = SHT_ORDERED;
2465
2466 return TRUE;
2467}
2468
2469/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2470 need to bump up the number of section headers. */
2471
2472static int
a6b96beb
AM
2473ppc_elf_additional_program_headers (bfd *abfd,
2474 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2475{
2476 asection *s;
2477 int ret = 0;
d1c6de6f 2478
25dbc73a
AM
2479 s = bfd_get_section_by_name (abfd, ".sbss2");
2480 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2481 ++ret;
d1c6de6f 2482
25dbc73a
AM
2483 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2484 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2485 ++ret;
deaaf2f3 2486
25dbc73a
AM
2487 return ret;
2488}
deaaf2f3 2489
68ffbac6 2490/* Modify the segment map for VLE executables. */
b9c361e0
JL
2491
2492bfd_boolean
2493ppc_elf_modify_segment_map (bfd *abfd,
2494 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2495{
f7d69005 2496 struct elf_segment_map *m;
b9c361e0
JL
2497
2498 /* At this point in the link, output sections have already been sorted by
2499 LMA and assigned to segments. All that is left to do is to ensure
2500 there is no mixing of VLE & non-VLE sections in a text segment.
2501 If we find that case, we split the segment.
2502 We maintain the original output section order. */
2503
12bd6957 2504 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0 2505 {
f7d69005
AM
2506 struct elf_segment_map *n;
2507 bfd_size_type amt;
2508 unsigned int j, k;
2509 unsigned int p_flags;
2510
2511 if (m->p_type != PT_LOAD || m->count == 0)
b9c361e0
JL
2512 continue;
2513
f7d69005 2514 for (p_flags = PF_R, j = 0; j != m->count; ++j)
b9c361e0 2515 {
f7d69005
AM
2516 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2517 p_flags |= PF_W;
2518 if ((m->sections[j]->flags & SEC_CODE) != 0)
2519 {
2520 p_flags |= PF_X;
2521 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2522 p_flags |= PF_PPC_VLE;
2523 break;
2524 }
2525 }
2526 if (j != m->count)
2527 while (++j != m->count)
2528 {
2529 unsigned int p_flags1 = PF_R;
94caa966 2530
f7d69005
AM
2531 if ((m->sections[j]->flags & SEC_READONLY) == 0)
2532 p_flags1 |= PF_W;
2533 if ((m->sections[j]->flags & SEC_CODE) != 0)
2534 {
2535 p_flags1 |= PF_X;
2536 if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
2537 p_flags1 |= PF_PPC_VLE;
2538 if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
2539 break;
2540 }
2541 p_flags |= p_flags1;
2542 }
2543 /* If we're splitting a segment which originally contained rw
2544 sections then those sections might now only be in one of the
2545 two parts. So always set p_flags if splitting, even if we
2546 are being called for objcopy with p_flags_valid set. */
2547 if (j != m->count || !m->p_flags_valid)
2548 {
2549 m->p_flags_valid = 1;
2550 m->p_flags = p_flags;
2551 }
2552 if (j == m->count)
b9c361e0
JL
2553 continue;
2554
f7d69005 2555 /* Sections 0..j-1 stay in this (current) segment,
b9c361e0
JL
2556 the remainder are put in a new segment.
2557 The scan resumes with the new segment. */
2558
b9c361e0
JL
2559 amt = sizeof (struct elf_segment_map);
2560 amt += (m->count - j - 1) * sizeof (asection *);
2561 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2562 if (n == NULL)
954b63d4 2563 return FALSE;
b9c361e0
JL
2564
2565 n->p_type = PT_LOAD;
b9c361e0
JL
2566 n->count = m->count - j;
2567 for (k = 0; k < n->count; ++k)
f7d69005
AM
2568 n->sections[k] = m->sections[j + k];
2569 m->count = j;
2570 m->p_size_valid = 0;
b9c361e0
JL
2571 n->next = m->next;
2572 m->next = n;
b9c361e0
JL
2573 }
2574
2575 return TRUE;
2576}
2577
25dbc73a
AM
2578/* Add extra PPC sections -- Note, for now, make .sbss2 and
2579 .PPC.EMB.sbss0 a normal section, and not a bss section so
2580 that the linker doesn't crater when trying to make more than
2581 2 sections. */
e656e369 2582
b35d266b 2583static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2584{
14b57c7c
AM
2585 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2586 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2587 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2588 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2589 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2590 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2591 { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
2592 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2593 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2594 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2595};
2596
551b43fd
AM
2597/* This is what we want for new plt/got. */
2598static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2599 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2600
2601static const struct bfd_elf_special_section *
4aef7643 2602ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
7f4d3958 2603{
b35d266b 2604 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2605
2606 /* See if this is one of the special sections. */
2607 if (sec->name == NULL)
2608 return NULL;
2609
2610 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2611 sec->use_rela_p);
2612 if (ssect != NULL)
2613 {
2614 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2615 ssect = &ppc_alt_plt;
2616 return ssect;
2617 }
2618
2619 return _bfd_elf_get_sec_type_attr (abfd, sec);
2620}
25dbc73a
AM
2621\f
2622/* Very simple linked list structure for recording apuinfo values. */
2623typedef struct apuinfo_list
2624{
2625 struct apuinfo_list *next;
2626 unsigned long value;
2627}
2628apuinfo_list;
e656e369 2629
25dbc73a 2630static apuinfo_list *head;
f2faa800 2631static bfd_boolean apuinfo_set;
deaaf2f3 2632
25dbc73a
AM
2633static void
2634apuinfo_list_init (void)
2635{
2636 head = NULL;
f2faa800 2637 apuinfo_set = FALSE;
25dbc73a 2638}
9abc968f 2639
25dbc73a
AM
2640static void
2641apuinfo_list_add (unsigned long value)
2642{
2643 apuinfo_list *entry = head;
deaaf2f3 2644
25dbc73a
AM
2645 while (entry != NULL)
2646 {
2647 if (entry->value == value)
2648 return;
2649 entry = entry->next;
2650 }
b4a38de6 2651
25dbc73a
AM
2652 entry = bfd_malloc (sizeof (* entry));
2653 if (entry == NULL)
2654 return;
e656e369 2655
25dbc73a
AM
2656 entry->value = value;
2657 entry->next = head;
2658 head = entry;
2659}
9abc968f 2660
25dbc73a
AM
2661static unsigned
2662apuinfo_list_length (void)
2663{
2664 apuinfo_list *entry;
2665 unsigned long count;
9abc968f 2666
25dbc73a
AM
2667 for (entry = head, count = 0;
2668 entry;
2669 entry = entry->next)
2670 ++ count;
e656e369 2671
25dbc73a
AM
2672 return count;
2673}
eea6121a 2674
25dbc73a
AM
2675static inline unsigned long
2676apuinfo_list_element (unsigned long number)
2677{
2678 apuinfo_list * entry;
e656e369 2679
25dbc73a
AM
2680 for (entry = head;
2681 entry && number --;
2682 entry = entry->next)
2683 ;
252b5132 2684
25dbc73a
AM
2685 return entry ? entry->value : 0;
2686}
2687
2688static void
2689apuinfo_list_finish (void)
2690{
2691 apuinfo_list *entry;
2692
2693 for (entry = head; entry;)
252b5132 2694 {
25dbc73a
AM
2695 apuinfo_list *next = entry->next;
2696 free (entry);
2697 entry = next;
2698 }
9abc968f 2699
25dbc73a
AM
2700 head = NULL;
2701}
9abc968f 2702
25dbc73a
AM
2703/* Scan the input BFDs and create a linked list of
2704 the APUinfo values that will need to be emitted. */
9abc968f 2705
25dbc73a
AM
2706static void
2707ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2708{
2709 bfd *ibfd;
2710 asection *asec;
deddc40b
NS
2711 char *buffer = NULL;
2712 bfd_size_type largest_input_size = 0;
25dbc73a 2713 unsigned i;
25dbc73a
AM
2714 unsigned long length;
2715 const char *error_message = NULL;
9abc968f 2716
25dbc73a
AM
2717 if (link_info == NULL)
2718 return;
9abc968f 2719
25dbc73a 2720 apuinfo_list_init ();
252b5132 2721
25dbc73a 2722 /* Read in the input sections contents. */
c72f2fb2 2723 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
252b5132 2724 {
25dbc73a 2725 unsigned long datum;
252b5132 2726
25dbc73a
AM
2727 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2728 if (asec == NULL)
2729 continue;
252b5132 2730
695344c0 2731 /* xgettext:c-format */
deddc40b 2732 error_message = _("corrupt %s section in %B");
25dbc73a 2733 length = asec->size;
deddc40b
NS
2734 if (length < 20)
2735 goto fail;
2736
f2faa800 2737 apuinfo_set = TRUE;
deddc40b 2738 if (largest_input_size < asec->size)
25dbc73a 2739 {
deddc40b
NS
2740 if (buffer)
2741 free (buffer);
2742 largest_input_size = asec->size;
2743 buffer = bfd_malloc (largest_input_size);
2744 if (!buffer)
2745 return;
25dbc73a 2746 }
5b914448 2747
25dbc73a 2748 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2749 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a 2750 {
695344c0 2751 /* xgettext:c-format */
25dbc73a
AM
2752 error_message = _("unable to read in %s section from %B");
2753 goto fail;
2754 }
252b5132 2755
25dbc73a
AM
2756 /* Verify the contents of the header. Note - we have to
2757 extract the values this way in order to allow for a
2758 host whose endian-ness is different from the target. */
deddc40b 2759 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2760 if (datum != sizeof APUINFO_LABEL)
2761 goto fail;
252b5132 2762
deddc40b 2763 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2764 if (datum != 0x2)
2765 goto fail;
252b5132 2766
deddc40b 2767 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2768 goto fail;
252b5132 2769
25dbc73a 2770 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2771 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2772 if (datum + 20 != length)
2773 goto fail;
2774
25dbc73a
AM
2775 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2776 for (i = 0; i < datum; i += 4)
deddc40b 2777 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2778 }
2779
25dbc73a 2780 error_message = NULL;
252b5132 2781
f2faa800 2782 if (apuinfo_set)
deddc40b 2783 {
f2faa800
NS
2784 /* Compute the size of the output section. */
2785 unsigned num_entries = apuinfo_list_length ();
5b914448 2786
deddc40b
NS
2787 /* Set the output section size, if it exists. */
2788 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2789
deddc40b
NS
2790 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2791 {
2792 ibfd = abfd;
695344c0 2793 /* xgettext:c-format */
deddc40b
NS
2794 error_message = _("warning: unable to set size of %s section in %B");
2795 }
2796 }
25dbc73a
AM
2797
2798 fail:
deddc40b
NS
2799 if (buffer)
2800 free (buffer);
25dbc73a
AM
2801
2802 if (error_message)
cd9af601 2803 _bfd_error_handler (error_message, APUINFO_SECTION_NAME, ibfd);
25dbc73a 2804}
252b5132 2805
25dbc73a
AM
2806/* Prevent the output section from accumulating the input sections'
2807 contents. We have already stored this in our linked list structure. */
252b5132 2808
25dbc73a
AM
2809static bfd_boolean
2810ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2811 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2812 asection *asec,
2813 bfd_byte *contents ATTRIBUTE_UNUSED)
2814{
f2faa800 2815 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2816}
2817
25dbc73a
AM
2818/* Finally we can generate the output section. */
2819
2820static void
2821ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2822{
25dbc73a
AM
2823 bfd_byte *buffer;
2824 asection *asec;
2825 unsigned i;
2826 unsigned num_entries;
2827 bfd_size_type length;
7619e7c7 2828
25dbc73a
AM
2829 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2830 if (asec == NULL)
2831 return;
2832
f2faa800 2833 if (!apuinfo_set)
25dbc73a
AM
2834 return;
2835
2836 length = asec->size;
2837 if (length < 20)
2838 return;
2839
2840 buffer = bfd_malloc (length);
2841 if (buffer == NULL)
7619e7c7 2842 {
4eca0228 2843 _bfd_error_handler
25dbc73a
AM
2844 (_("failed to allocate space for new APUinfo section."));
2845 return;
7619e7c7 2846 }
7619e7c7 2847
25dbc73a
AM
2848 /* Create the apuinfo header. */
2849 num_entries = apuinfo_list_length ();
2850 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2851 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2852 bfd_put_32 (abfd, 0x2, buffer + 8);
2853 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2854
25dbc73a
AM
2855 length = 20;
2856 for (i = 0; i < num_entries; i++)
feee612b 2857 {
25dbc73a
AM
2858 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2859 length += 4;
feee612b 2860 }
feee612b 2861
25dbc73a 2862 if (length != asec->size)
4eca0228 2863 _bfd_error_handler (_("failed to compute new APUinfo section."));
252b5132 2864
25dbc73a 2865 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
4eca0228 2866 _bfd_error_handler (_("failed to install new APUinfo section."));
252b5132 2867
25dbc73a
AM
2868 free (buffer);
2869
2870 apuinfo_list_finish ();
252b5132 2871}
25dbc73a 2872\f
7382d32a 2873static bfd_boolean
c6dd29ce 2874is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2875{
c6dd29ce 2876 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2877
c6dd29ce 2878 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2879 return FALSE;
2880
c6dd29ce
AM
2881 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2882 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2883 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2884 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2885}
2886
468392fb
AM
2887static bfd_boolean
2888section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2889{
2890 bfd_vma vma = *(bfd_vma *) ptr;
2891 return ((section->flags & SEC_ALLOC) != 0
2892 && section->vma <= vma
2893 && vma < section->vma + section->size);
2894}
2895
2896static long
2897ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2898 long dynsymcount, asymbol **dynsyms,
2899 asymbol **ret)
2900{
2901 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2902 asection *plt, *relplt, *dynamic, *glink;
2903 bfd_vma glink_vma = 0;
2904 bfd_vma resolv_vma = 0;
2905 bfd_vma stub_vma;
2906 asymbol *s;
2907 arelent *p;
2908 long count, i;
2909 size_t size;
2910 char *names;
2911 bfd_byte buf[4];
2912
2913 *ret = NULL;
2914
2915 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2916 return 0;
2917
2918 if (dynsymcount <= 0)
2919 return 0;
2920
2921 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2922 if (relplt == NULL)
2923 return 0;
2924
2925 plt = bfd_get_section_by_name (abfd, ".plt");
2926 if (plt == NULL)
2927 return 0;
2928
2929 /* Call common code to handle old-style executable PLTs. */
2930 if (elf_section_flags (plt) & SHF_EXECINSTR)
2931 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2932 dynsymcount, dynsyms, ret);
2933
2934 /* If this object was prelinked, the prelinker stored the address
2935 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2936 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2937 if (dynamic != NULL)
2938 {
2939 bfd_byte *dynbuf, *extdyn, *extdynend;
2940 size_t extdynsize;
2941 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2942
2943 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2944 return -1;
2945
2946 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2947 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2948
2949 extdyn = dynbuf;
2950 extdynend = extdyn + dynamic->size;
2951 for (; extdyn < extdynend; extdyn += extdynsize)
2952 {
2953 Elf_Internal_Dyn dyn;
2954 (*swap_dyn_in) (abfd, extdyn, &dyn);
2955
2956 if (dyn.d_tag == DT_NULL)
2957 break;
2958
2959 if (dyn.d_tag == DT_PPC_GOT)
2960 {
2961 unsigned int g_o_t = dyn.d_un.d_val;
2962 asection *got = bfd_get_section_by_name (abfd, ".got");
2963 if (got != NULL
2964 && bfd_get_section_contents (abfd, got, buf,
2965 g_o_t - got->vma + 4, 4))
2966 glink_vma = bfd_get_32 (abfd, buf);
2967 break;
2968 }
2969 }
2970 free (dynbuf);
2971 }
2972
2973 /* Otherwise we read the first plt entry. */
2974 if (glink_vma == 0)
2975 {
2976 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2977 glink_vma = bfd_get_32 (abfd, buf);
2978 }
2979
2980 if (glink_vma == 0)
2981 return 0;
2982
2983 /* The .glink section usually does not survive the final
2984 link; search for the section (usually .text) where the
2985 glink stubs now reside. */
2986 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2987 if (glink == NULL)
2988 return 0;
2989
2990 /* Determine glink PLT resolver by reading the relative branch
2991 from the first glink stub. */
2992 if (bfd_get_section_contents (abfd, glink, buf,
2993 glink_vma - glink->vma, 4))
2994 {
2995 unsigned int insn = bfd_get_32 (abfd, buf);
2996
2997 /* The first glink stub may either branch to the resolver ... */
2998 insn ^= B;
2999 if ((insn & ~0x3fffffc) == 0)
3000 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
3001
3002 /* ... or fall through a bunch of NOPs. */
3003 else if ((insn ^ B ^ NOP) == 0)
3004 for (i = 4;
3005 bfd_get_section_contents (abfd, glink, buf,
3006 glink_vma - glink->vma + i, 4);
3007 i += 4)
3008 if (bfd_get_32 (abfd, buf) != NOP)
3009 {
3010 resolv_vma = glink_vma + i;
3011 break;
3012 }
3013 }
3014
7382d32a 3015 count = relplt->size / sizeof (Elf32_External_Rela);
7382d32a
AM
3016 /* If the stubs are those for -shared/-pie then we might have
3017 multiple stubs for each plt entry. If that is the case then
3018 there is no way to associate stubs with their plt entries short
3019 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
3020 if (!is_nonpic_glink_stub (abfd, glink,
3021 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
3022 return 0;
3023
468392fb
AM
3024 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3025 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
3026 return -1;
3027
468392fb
AM
3028 size = count * sizeof (asymbol);
3029 p = relplt->relocation;
3030 for (i = 0; i < count; i++, p++)
e054468f
AM
3031 {
3032 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3033 if (p->addend != 0)
3034 size += sizeof ("+0x") - 1 + 8;
3035 }
468392fb
AM
3036
3037 size += sizeof (asymbol) + sizeof ("__glink");
3038
3039 if (resolv_vma)
3040 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
3041
3042 s = *ret = bfd_malloc (size);
3043 if (s == NULL)
3044 return -1;
3045
1079403c 3046 stub_vma = glink_vma;
468392fb 3047 names = (char *) (s + count + 1 + (resolv_vma != 0));
1079403c
AM
3048 p = relplt->relocation + count - 1;
3049 for (i = 0; i < count; i++)
468392fb
AM
3050 {
3051 size_t len;
3052
3053 *s = **p->sym_ptr_ptr;
3054 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3055 we are defining a symbol, ensure one of them is set. */
3056 if ((s->flags & BSF_LOCAL) == 0)
3057 s->flags |= BSF_GLOBAL;
6ba2a415 3058 s->flags |= BSF_SYNTHETIC;
468392fb 3059 s->section = glink;
1079403c
AM
3060 stub_vma -= 16;
3061 if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
3062 stub_vma -= 32;
468392fb
AM
3063 s->value = stub_vma - glink->vma;
3064 s->name = names;
3065 s->udata.p = NULL;
3066 len = strlen ((*p->sym_ptr_ptr)->name);
3067 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3068 names += len;
e054468f
AM
3069 if (p->addend != 0)
3070 {
3071 memcpy (names, "+0x", sizeof ("+0x") - 1);
3072 names += sizeof ("+0x") - 1;
3073 bfd_sprintf_vma (abfd, names, p->addend);
3074 names += strlen (names);
3075 }
468392fb
AM
3076 memcpy (names, "@plt", sizeof ("@plt"));
3077 names += sizeof ("@plt");
3078 ++s;
1079403c 3079 --p;
468392fb
AM
3080 }
3081
3082 /* Add a symbol at the start of the glink branch table. */
86a4952b 3083 memset (s, 0, sizeof *s);
468392fb 3084 s->the_bfd = abfd;
6ba2a415 3085 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3086 s->section = glink;
3087 s->value = glink_vma - glink->vma;
3088 s->name = names;
3089 memcpy (names, "__glink", sizeof ("__glink"));
3090 names += sizeof ("__glink");
3091 s++;
3092 count++;
3093
3094 if (resolv_vma)
3095 {
3096 /* Add a symbol for the glink PLT resolver. */
86a4952b 3097 memset (s, 0, sizeof *s);
468392fb 3098 s->the_bfd = abfd;
6ba2a415 3099 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3100 s->section = glink;
3101 s->value = resolv_vma - glink->vma;
3102 s->name = names;
3103 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3104 names += sizeof ("__glink_PLTresolve");
3105 s++;
3106 count++;
3107 }
3108
3109 return count;
3110}
3111\f
25dbc73a
AM
3112/* The following functions are specific to the ELF linker, while
3113 functions above are used generally. They appear in this file more
3114 or less in the order in which they are called. eg.
3115 ppc_elf_check_relocs is called early in the link process,
3116 ppc_elf_finish_dynamic_sections is one of the last functions
3117 called. */
252b5132 3118
a6aa5195 3119/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3120 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3121struct plt_entry
3122{
3123 struct plt_entry *next;
3124
3125 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3126 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3127 GOT pointer reg. It will always be at least 32768. (Current
3128 gcc always uses an offset of 32768, but ld -r will pack .got2
3129 sections together resulting in larger offsets). */
a6aa5195
AM
3130 bfd_vma addend;
3131
3132 /* The .got2 section. */
3133 asection *sec;
3134
3135 /* PLT refcount or offset. */
3136 union
3137 {
3138 bfd_signed_vma refcount;
3139 bfd_vma offset;
3140 } plt;
3141
3142 /* .glink stub offset. */
3143 bfd_vma glink_offset;
3144};
3145
7c8bbca5
AM
3146/* Of those relocs that might be copied as dynamic relocs, this
3147 function selects those that must be copied when linking a shared
3148 library or PIE, even when the symbol is local. */
252b5132 3149
1d483afe
AM
3150static int
3151must_be_dyn_reloc (struct bfd_link_info *info,
3152 enum elf_ppc_reloc_type r_type)
3153{
3154 switch (r_type)
3155 {
3156 default:
7c8bbca5
AM
3157 /* Only relative relocs can be resolved when the object load
3158 address isn't fixed. DTPREL32 is excluded because the
3159 dynamic linker needs to differentiate global dynamic from
3160 local dynamic __tls_index pairs when PPC_OPT_TLS is set. */
1d483afe
AM
3161 return 1;
3162
3163 case R_PPC_REL24:
3164 case R_PPC_REL14:
3165 case R_PPC_REL14_BRTAKEN:
3166 case R_PPC_REL14_BRNTAKEN:
3167 case R_PPC_REL32:
3168 return 0;
3169
3170 case R_PPC_TPREL32:
3171 case R_PPC_TPREL16:
3172 case R_PPC_TPREL16_LO:
3173 case R_PPC_TPREL16_HI:
3174 case R_PPC_TPREL16_HA:
7c8bbca5
AM
3175 /* These relocations are relative but in a shared library the
3176 linker doesn't know the thread pointer base. */
3177 return bfd_link_dll (info);
1d483afe
AM
3178 }
3179}
252b5132 3180
21d68fcd
AM
3181/* Whether an undefined weak symbol should resolve to its link-time
3182 value, even in PIC or PIE objects. */
3183#define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
3184 ((H)->root.type == bfd_link_hash_undefweak \
3185 && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
3186 || (INFO)->dynamic_undefined_weak == 0))
3187
25dbc73a
AM
3188/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3189 copying dynamic variables from a shared lib into an app's dynbss
3190 section, and instead use a dynamic relocation to point into the
3191 shared lib. */
3192#define ELIMINATE_COPY_RELOCS 1
252b5132 3193
f95f8542
AM
3194/* Used to track dynamic relocations for local symbols. */
3195struct ppc_dyn_relocs
3196{
3197 struct ppc_dyn_relocs *next;
3198
3199 /* The input section of the reloc. */
3200 asection *sec;
3201
3202 /* Total number of relocs copied for the input section. */
3203 unsigned int count : 31;
3204
3205 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3206 unsigned int ifunc : 1;
3207};
3208
25dbc73a 3209/* PPC ELF linker hash entry. */
252b5132 3210
25dbc73a
AM
3211struct ppc_elf_link_hash_entry
3212{
3213 struct elf_link_hash_entry elf;
252b5132 3214
25dbc73a
AM
3215 /* If this symbol is used in the linker created sections, the processor
3216 specific backend uses this field to map the field into the offset
3217 from the beginning of the section. */
3218 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3219
25dbc73a 3220 /* Track dynamic relocs copied for this symbol. */
6061a67d 3221 struct elf_dyn_relocs *dyn_relocs;
252b5132 3222
25dbc73a
AM
3223 /* Contexts in which symbol is used in the GOT (or TOC).
3224 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3225 corresponding relocs are encountered during check_relocs.
3226 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3227 indicate the corresponding GOT entry type is not needed. */
3228#define TLS_GD 1 /* GD reloc. */
3229#define TLS_LD 2 /* LD reloc. */
3230#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3231#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3232#define TLS_TLS 16 /* Any TLS reloc. */
3233#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3234#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3235 char tls_mask;
4dc4a9a5
DJ
3236
3237 /* Nonzero if we have seen a small data relocation referring to this
3238 symbol. */
d3e454b9
AM
3239 unsigned char has_sda_refs : 1;
3240
3241 /* Flag use of given relocations. */
3242 unsigned char has_addr16_ha : 1;
3243 unsigned char has_addr16_lo : 1;
25dbc73a 3244};
252b5132 3245
25dbc73a
AM
3246#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3247
3248/* PPC ELF linker hash table. */
3249
3250struct ppc_elf_link_hash_table
3251{
3252 struct elf_link_hash_table elf;
3253
5446cbdf
AM
3254 /* Various options passed from the linker. */
3255 struct ppc_elf_params *params;
3256
25dbc73a 3257 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3258 asection *glink;
25dbc73a
AM
3259 asection *dynsbss;
3260 asection *relsbss;
c9a2f333 3261 elf_linker_section_t sdata[2];
25dbc73a 3262 asection *sbss;
6177242a 3263 asection *glink_eh_frame;
25dbc73a 3264
016687f8
AM
3265 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3266 asection *srelplt2;
3267
1d483afe 3268 /* Shortcut to __tls_get_addr. */
25dbc73a 3269 struct elf_link_hash_entry *tls_get_addr;
252b5132 3270
016687f8
AM
3271 /* The bfd that forced an old-style PLT. */
3272 bfd *old_bfd;
5b914448 3273
25dbc73a
AM
3274 /* TLS local dynamic got entry handling. */
3275 union {
3276 bfd_signed_vma refcount;
3277 bfd_vma offset;
3278 } tlsld_got;
252b5132 3279
c6dd29ce 3280 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3281 bfd_vma glink_pltresolve;
3282
3b36f7e6
AM
3283 /* Size of reserved GOT entries. */
3284 unsigned int got_header_size;
3285 /* Non-zero if allocating the header left a gap. */
3286 unsigned int got_gap;
3287
4a3dc543
RS
3288 /* The type of PLT we have chosen to use. */
3289 enum ppc_elf_plt_type plt_type;
3290
9d8504b1 3291 /* True if the target system is VxWorks. */
016687f8 3292 unsigned int is_vxworks:1;
9d8504b1 3293
82e66161
AM
3294 /* Whether there exist local gnu indirect function resolvers,
3295 referenced by dynamic relocations. */
3296 unsigned int local_ifunc_resolver:1;
3297 unsigned int maybe_local_ifunc_resolver:1;
3298
9a23f96e
AM
3299 /* Set if tls optimization is enabled. */
3300 unsigned int do_tls_opt:1;
3301
9d8504b1
PB
3302 /* The size of PLT entries. */
3303 int plt_entry_size;
3304 /* The distance between adjacent PLT slots. */
3305 int plt_slot_size;
3306 /* The size of the first PLT entry. */
3307 int plt_initial_entry_size;
016687f8 3308
87d72d41
AM
3309 /* Small local sym cache. */
3310 struct sym_cache sym_cache;
25dbc73a 3311};
252b5132 3312
94caa966
AM
3313/* Rename some of the generic section flags to better document how they
3314 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3315
3316/* Nonzero if this section has TLS related relocations. */
3317#define has_tls_reloc sec_flg0
3318
3319/* Nonzero if this section has a call to __tls_get_addr. */
3320#define has_tls_get_addr_call sec_flg1
3321
25dbc73a 3322/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3323
25dbc73a 3324#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3325 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3326 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3327
25dbc73a 3328/* Create an entry in a PPC ELF linker hash table. */
252b5132 3329
25dbc73a
AM
3330static struct bfd_hash_entry *
3331ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3332 struct bfd_hash_table *table,
3333 const char *string)
252b5132 3334{
25dbc73a
AM
3335 /* Allocate the structure if it has not already been allocated by a
3336 subclass. */
3337 if (entry == NULL)
3338 {
3339 entry = bfd_hash_allocate (table,
3340 sizeof (struct ppc_elf_link_hash_entry));
3341 if (entry == NULL)
3342 return entry;
3343 }
252b5132 3344
25dbc73a
AM
3345 /* Call the allocation method of the superclass. */
3346 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3347 if (entry != NULL)
3348 {
3349 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3350 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3351 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3352 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3353 }
252b5132 3354
25dbc73a 3355 return entry;
252b5132 3356}
3dab13f6 3357
25dbc73a 3358/* Create a PPC ELF linker hash table. */
3dab13f6 3359
25dbc73a
AM
3360static struct bfd_link_hash_table *
3361ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3362{
25dbc73a 3363 struct ppc_elf_link_hash_table *ret;
76e7a751 3364 static struct ppc_elf_params default_params
08dc996f 3365 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3366
25dbc73a
AM
3367 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3368 if (ret == NULL)
3369 return NULL;
3dab13f6 3370
66eb6687
AM
3371 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3372 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3373 sizeof (struct ppc_elf_link_hash_entry),
3374 PPC32_ELF_DATA))
3dab13f6 3375 {
25dbc73a
AM
3376 free (ret);
3377 return NULL;
3378 }
58111eb7 3379
a6aa5195
AM
3380 ret->elf.init_plt_refcount.refcount = 0;
3381 ret->elf.init_plt_refcount.glist = NULL;
3382 ret->elf.init_plt_offset.offset = 0;
3383 ret->elf.init_plt_offset.glist = NULL;
3384
db434ba0
AM
3385 ret->params = &default_params;
3386
c9a2f333
AM
3387 ret->sdata[0].name = ".sdata";
3388 ret->sdata[0].sym_name = "_SDA_BASE_";
3389 ret->sdata[0].bss_name = ".sbss";
3390
3391 ret->sdata[1].name = ".sdata2";
3392 ret->sdata[1].sym_name = "_SDA2_BASE_";
3393 ret->sdata[1].bss_name = ".sbss2";
3394
9d8504b1
PB
3395 ret->plt_entry_size = 12;
3396 ret->plt_slot_size = 8;
3397 ret->plt_initial_entry_size = 72;
9d8504b1 3398
25dbc73a
AM
3399 return &ret->elf.root;
3400}
3dab13f6 3401
5446cbdf
AM
3402/* Hook linker params into hash table. */
3403
3404void
3405ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3406{
3407 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3408
3409 if (htab)
3410 htab->params = params;
76e7a751 3411 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3412}
3413
9d8504b1 3414/* Create .got and the related sections. */
3dab13f6 3415
25dbc73a
AM
3416static bfd_boolean
3417ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3418{
3419 struct ppc_elf_link_hash_table *htab;
3dab13f6 3420
25dbc73a
AM
3421 if (!_bfd_elf_create_got_section (abfd, info))
3422 return FALSE;
3dab13f6 3423
25dbc73a 3424 htab = ppc_elf_hash_table (info);
ce558b89 3425 if (!htab->is_vxworks)
9d8504b1
PB
3426 {
3427 /* The powerpc .got has a blrl instruction in it. Mark it
3428 executable. */
ce558b89
AM
3429 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3430 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3431 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3432 return FALSE;
3433 }
3dab13f6 3434
25dbc73a
AM
3435 return TRUE;
3436}
3dab13f6 3437
93d1b056
AM
3438/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3439 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3440 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3441
3442static bfd_boolean
3443ppc_elf_create_linker_section (bfd *abfd,
3444 struct bfd_link_info *info,
3445 flagword flags,
3446 elf_linker_section_t *lsect)
3447{
3448 asection *s;
3449
3450 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3451 | SEC_LINKER_CREATED);
3452
3453 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3454 if (s == NULL)
3455 return FALSE;
3456 lsect->section = s;
3457
3458 /* Define the sym on the first section of this name. */
3459 s = bfd_get_section_by_name (abfd, lsect->name);
3460
3461 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3462 if (lsect->sym == NULL)
3463 return FALSE;
3464 lsect->sym->root.u.def.value = 0x8000;
3465 return TRUE;
3466}
3467
e054468f
AM
3468static bfd_boolean
3469ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3470{
3471 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3472 asection *s;
3473 flagword flags;
3474
3475 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3476 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3477 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3478 htab->glink = s;
3479 if (s == NULL
5446cbdf
AM
3480 || !bfd_set_section_alignment (abfd, s,
3481 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3482 return FALSE;
3483
6177242a
AM
3484 if (!info->no_ld_generated_unwind_info)
3485 {
3486 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3487 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3488 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3489 htab->glink_eh_frame = s;
3490 if (s == NULL
3491 || !bfd_set_section_alignment (abfd, s, 2))
3492 return FALSE;
3493 }
3494
e054468f
AM
3495 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3496 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3497 htab->elf.iplt = s;
e054468f
AM
3498 if (s == NULL
3499 || !bfd_set_section_alignment (abfd, s, 4))
3500 return FALSE;
3501
3502 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3503 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3504 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3505 htab->elf.irelplt = s;
e054468f
AM
3506 if (s == NULL
3507 || ! bfd_set_section_alignment (abfd, s, 2))
3508 return FALSE;
93d1b056
AM
3509
3510 if (!ppc_elf_create_linker_section (abfd, info, 0,
3511 &htab->sdata[0]))
3512 return FALSE;
3513
3514 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3515 &htab->sdata[1]))
3516 return FALSE;
3517
e054468f
AM
3518 return TRUE;
3519}
3520
25dbc73a
AM
3521/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3522 to output sections (just like _bfd_elf_create_dynamic_sections has
3523 to create .dynbss and .rela.bss). */
3dab13f6 3524
25dbc73a
AM
3525static bfd_boolean
3526ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3527{
3528 struct ppc_elf_link_hash_table *htab;
3529 asection *s;
3530 flagword flags;
3dab13f6 3531
25dbc73a 3532 htab = ppc_elf_hash_table (info);
3dab13f6 3533
ce558b89 3534 if (htab->elf.sgot == NULL
25dbc73a 3535 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3536 return FALSE;
3537
25dbc73a
AM
3538 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3539 return FALSE;
3dab13f6 3540
e054468f
AM
3541 if (htab->glink == NULL
3542 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3543 return FALSE;
3dab13f6 3544
14b2f831
AM
3545 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3546 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3547 htab->dynsbss = s;
3496cb2a 3548 if (s == NULL)
25dbc73a 3549 return FALSE;
3dab13f6 3550
0e1862bb 3551 if (! bfd_link_pic (info))
25dbc73a 3552 {
e054468f
AM
3553 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3554 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3555 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3556 htab->relsbss = s;
25dbc73a 3557 if (s == NULL
25dbc73a
AM
3558 || ! bfd_set_section_alignment (abfd, s, 2))
3559 return FALSE;
3560 }
3dab13f6 3561
711de32c
RS
3562 if (htab->is_vxworks
3563 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3564 return FALSE;
9d8504b1 3565
ce558b89 3566 s = htab->elf.splt;
3b36f7e6 3567 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3568 if (htab->plt_type == PLT_VXWORKS)
3569 /* The VxWorks PLT is a loaded section with contents. */
3570 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3571 return bfd_set_section_flags (abfd, s, flags);
3572}
3dab13f6 3573
25dbc73a 3574/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3575
25dbc73a 3576static void
fcfa13d2 3577ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3578 struct elf_link_hash_entry *dir,
3579 struct elf_link_hash_entry *ind)
3580{
3581 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3582
25dbc73a
AM
3583 edir = (struct ppc_elf_link_hash_entry *) dir;
3584 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3585
c79d6685
AM
3586 edir->tls_mask |= eind->tls_mask;
3587 edir->has_sda_refs |= eind->has_sda_refs;
3588
3589 /* If called to transfer flags for a weakdef during processing
3590 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3591 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3592 if (!(ELIMINATE_COPY_RELOCS
3593 && eind->elf.root.type != bfd_link_hash_indirect
3594 && edir->elf.dynamic_adjusted))
3595 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3596
e81830c5
AM
3597 if (edir->elf.versioned != versioned_hidden)
3598 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3599 edir->elf.ref_regular |= eind->elf.ref_regular;
3600 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3601 edir->elf.needs_plt |= eind->elf.needs_plt;
3602 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3603
25dbc73a
AM
3604 if (eind->dyn_relocs != NULL)
3605 {
3606 if (edir->dyn_relocs != NULL)
3dab13f6 3607 {
6061a67d
AM
3608 struct elf_dyn_relocs **pp;
3609 struct elf_dyn_relocs *p;
3dab13f6 3610
fcfa13d2 3611 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3612 list. Merge any entries against the same section. */
3613 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3614 {
6061a67d 3615 struct elf_dyn_relocs *q;
25dbc73a
AM
3616
3617 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3618 if (q->sec == p->sec)
3619 {
3620 q->pc_count += p->pc_count;
3621 q->count += p->count;
3622 *pp = p->next;
3623 break;
3624 }
3625 if (q == NULL)
3626 pp = &p->next;
3dab13f6 3627 }
25dbc73a 3628 *pp = edir->dyn_relocs;
3dab13f6 3629 }
25dbc73a
AM
3630
3631 edir->dyn_relocs = eind->dyn_relocs;
3632 eind->dyn_relocs = NULL;
3dab13f6 3633 }
3dab13f6 3634
68ba6d40
AM
3635 /* If we were called to copy over info for a weak sym, that's all.
3636 You might think dyn_relocs need not be copied over; After all,
3637 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3638 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3639 code in ppc_elf_adjust_dynamic_symbol needs to check for
3640 dyn_relocs in read-only sections, and it does so on what is the
3641 DIR sym here. */
3642 if (eind->elf.root.type != bfd_link_hash_indirect)
3643 return;
3644
a6aa5195
AM
3645 /* Copy over the GOT refcount entries that we may have already seen to
3646 the symbol which just became indirect. */
fcfa13d2
AM
3647 edir->elf.got.refcount += eind->elf.got.refcount;
3648 eind->elf.got.refcount = 0;
a6aa5195
AM
3649
3650 /* And plt entries. */
3651 if (eind->elf.plt.plist != NULL)
3652 {
3653 if (edir->elf.plt.plist != NULL)
3654 {
3655 struct plt_entry **entp;
3656 struct plt_entry *ent;
3657
3658 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3659 {
3660 struct plt_entry *dent;
3661
3662 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3663 if (dent->sec == ent->sec && dent->addend == ent->addend)
3664 {
3665 dent->plt.refcount += ent->plt.refcount;
3666 *entp = ent->next;
3667 break;
3668 }
3669 if (dent == NULL)
3670 entp = &ent->next;
3671 }
3672 *entp = edir->elf.plt.plist;
3673 }
3674
3675 edir->elf.plt.plist = eind->elf.plt.plist;
3676 eind->elf.plt.plist = NULL;
3677 }
3678
fcfa13d2 3679 if (eind->elf.dynindx != -1)
25dbc73a 3680 {
fcfa13d2
AM
3681 if (edir->elf.dynindx != -1)
3682 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3683 edir->elf.dynstr_index);
a6aa5195
AM
3684 edir->elf.dynindx = eind->elf.dynindx;
3685 edir->elf.dynstr_index = eind->elf.dynstr_index;
3686 eind->elf.dynindx = -1;
3687 eind->elf.dynstr_index = 0;
25dbc73a 3688 }
25dbc73a 3689}
3dab13f6 3690
25dbc73a
AM
3691/* Hook called by the linker routine which adds symbols from an object
3692 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3693
25dbc73a
AM
3694static bfd_boolean
3695ppc_elf_add_symbol_hook (bfd *abfd,
3696 struct bfd_link_info *info,
3697 Elf_Internal_Sym *sym,
3698 const char **namep ATTRIBUTE_UNUSED,
3699 flagword *flagsp ATTRIBUTE_UNUSED,
3700 asection **secp,
3701 bfd_vma *valp)
3702{
3703 if (sym->st_shndx == SHN_COMMON
0e1862bb 3704 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3705 && is_ppc_elf (info->output_bfd)
3706 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3707 {
3708 /* Common symbols less than or equal to -G nn bytes are automatically
3709 put into .sbss. */
3710 struct ppc_elf_link_hash_table *htab;
3dab13f6 3711
25dbc73a
AM
3712 htab = ppc_elf_hash_table (info);
3713 if (htab->sbss == NULL)
3714 {
644285ef 3715 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3716
644285ef
AM
3717 if (!htab->elf.dynobj)
3718 htab->elf.dynobj = abfd;
3719
3496cb2a
L
3720 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3721 ".sbss",
3722 flags);
3723 if (htab->sbss == NULL)
25dbc73a 3724 return FALSE;
3dab13f6 3725 }
3dab13f6 3726
25dbc73a
AM
3727 *secp = htab->sbss;
3728 *valp = sym->st_size;
3729 }
3dab13f6 3730
a43942db 3731 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3732 && (abfd->flags & DYNAMIC) == 0
3733 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3734 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3735
25dbc73a 3736 return TRUE;
3dab13f6
AM
3737}
3738\f
25dbc73a
AM
3739/* Find a linker generated pointer with a given addend and type. */
3740
3741static elf_linker_section_pointers_t *
3742elf_find_pointer_linker_section
3743 (elf_linker_section_pointers_t *linker_pointers,
3744 bfd_vma addend,
3745 elf_linker_section_t *lsect)
252b5132 3746{
25dbc73a
AM
3747 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3748 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3749 return linker_pointers;
252b5132 3750
25dbc73a
AM
3751 return NULL;
3752}
3753
3754/* Allocate a pointer to live in a linker created section. */
3755
3756static bfd_boolean
93d1b056
AM
3757elf_allocate_pointer_linker_section (bfd *abfd,
3758 elf_linker_section_t *lsect,
3759 struct elf_link_hash_entry *h,
3760 const Elf_Internal_Rela *rel)
25dbc73a
AM
3761{
3762 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3763 elf_linker_section_pointers_t *linker_section_ptr;
3764 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3765 bfd_size_type amt;
3766
3767 BFD_ASSERT (lsect != NULL);
3768
3769 /* Is this a global symbol? */
3770 if (h != NULL)
3771 {
3772 struct ppc_elf_link_hash_entry *eh;
3773
3774 /* Has this symbol already been allocated? If so, our work is done. */
3775 eh = (struct ppc_elf_link_hash_entry *) h;
3776 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3777 rel->r_addend,
3778 lsect))
3779 return TRUE;
3780
3781 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3782 }
3783 else
3784 {
0c8d6e5c 3785 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3786
25dbc73a
AM
3787 /* Allocation of a pointer to a local symbol. */
3788 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3789
3790 /* Allocate a table to hold the local symbols if first time. */
3791 if (!ptr)
3792 {
0ffa91dd 3793 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3794
3795 amt = num_symbols;
3796 amt *= sizeof (elf_linker_section_pointers_t *);
3797 ptr = bfd_zalloc (abfd, amt);
3798
3799 if (!ptr)
3800 return FALSE;
3801
3802 elf_local_ptr_offsets (abfd) = ptr;
3803 }
3804
3805 /* Has this symbol already been allocated? If so, our work is done. */
3806 if (elf_find_pointer_linker_section (ptr[r_symndx],
3807 rel->r_addend,
3808 lsect))
3809 return TRUE;
252b5132 3810
25dbc73a 3811 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3812 }
41fcb14e 3813
25dbc73a
AM
3814 /* Allocate space for a pointer in the linker section, and allocate
3815 a new pointer record from internal memory. */
3816 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3817 amt = sizeof (elf_linker_section_pointers_t);
3818 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3819
25dbc73a 3820 if (!linker_section_ptr)
7619e7c7 3821 return FALSE;
41fcb14e 3822
25dbc73a
AM
3823 linker_section_ptr->next = *ptr_linker_section_ptr;
3824 linker_section_ptr->addend = rel->r_addend;
3825 linker_section_ptr->lsect = lsect;
25dbc73a 3826 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3827
93d1b056
AM
3828 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3829 return FALSE;
25dbc73a
AM
3830 linker_section_ptr->offset = lsect->section->size;
3831 lsect->section->size += 4;
7619e7c7 3832
25dbc73a
AM
3833#ifdef DEBUG
3834 fprintf (stderr,
3835 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3836 lsect->name, (long) linker_section_ptr->offset,
3837 (long) lsect->section->size);
3838#endif
7619e7c7
AM
3839
3840 return TRUE;
41fcb14e
AM
3841}
3842
e054468f 3843static struct plt_entry **
25dbc73a
AM
3844update_local_sym_info (bfd *abfd,
3845 Elf_Internal_Shdr *symtab_hdr,
3846 unsigned long r_symndx,
3847 int tls_type)
252b5132 3848{
25dbc73a 3849 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3850 struct plt_entry **local_plt;
25dbc73a 3851 char *local_got_tls_masks;
252b5132 3852
25dbc73a 3853 if (local_got_refcounts == NULL)
252b5132 3854 {
25dbc73a
AM
3855 bfd_size_type size = symtab_hdr->sh_info;
3856
e054468f
AM
3857 size *= (sizeof (*local_got_refcounts)
3858 + sizeof (*local_plt)
3859 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3860 local_got_refcounts = bfd_zalloc (abfd, size);
3861 if (local_got_refcounts == NULL)
e054468f 3862 return NULL;
25dbc73a 3863 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3864 }
41fcb14e 3865
e054468f
AM
3866 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3867 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3868 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3869 if (tls_type != PLT_IFUNC)
3870 local_got_refcounts[r_symndx] += 1;
3871 return local_plt + r_symndx;
25dbc73a 3872}
41fcb14e 3873
a6aa5195 3874static bfd_boolean
3ec01793 3875update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3876 asection *sec, bfd_vma addend)
3877{
3878 struct plt_entry *ent;
3879
32af9f6e
AM
3880 if (addend < 32768)
3881 sec = NULL;
3ec01793 3882 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3883 if (ent->sec == sec && ent->addend == addend)
3884 break;
3885 if (ent == NULL)
3886 {
3887 bfd_size_type amt = sizeof (*ent);
3888 ent = bfd_alloc (abfd, amt);
3889 if (ent == NULL)
3890 return FALSE;
3ec01793 3891 ent->next = *plist;
a6aa5195
AM
3892 ent->sec = sec;
3893 ent->addend = addend;
3894 ent->plt.refcount = 0;
3ec01793 3895 *plist = ent;
a6aa5195
AM
3896 }
3897 ent->plt.refcount += 1;
3898 return TRUE;
3899}
3900
3901static struct plt_entry *
3ec01793 3902find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3903{
3904 struct plt_entry *ent;
3905
3906 if (addend < 32768)
3907 sec = NULL;
3ec01793 3908 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3909 if (ent->sec == sec && ent->addend == addend)
3910 break;
3911 return ent;
3912}
3913
e054468f
AM
3914static bfd_boolean
3915is_branch_reloc (enum elf_ppc_reloc_type r_type)
3916{
3917 return (r_type == R_PPC_PLTREL24
3918 || r_type == R_PPC_LOCAL24PC
3919 || r_type == R_PPC_REL24
3920 || r_type == R_PPC_REL14
3921 || r_type == R_PPC_REL14_BRTAKEN
3922 || r_type == R_PPC_REL14_BRNTAKEN
3923 || r_type == R_PPC_ADDR24
3924 || r_type == R_PPC_ADDR14
3925 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3926 || r_type == R_PPC_ADDR14_BRNTAKEN
3927 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3928}
3929
25dbc73a
AM
3930static void
3931bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3932{
4eca0228 3933 _bfd_error_handler
695344c0 3934 /* xgettext:c-format */
25dbc73a
AM
3935 (_("%B: relocation %s cannot be used when making a shared object"),
3936 abfd,
3937 ppc_elf_howto_table[r_type]->name);
3938 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3939}
3940
25dbc73a
AM
3941/* Look through the relocs for a section during the first phase, and
3942 allocate space in the global offset table or procedure linkage
3943 table. */
252b5132 3944
b34976b6 3945static bfd_boolean
25dbc73a
AM
3946ppc_elf_check_relocs (bfd *abfd,
3947 struct bfd_link_info *info,
3948 asection *sec,
3949 const Elf_Internal_Rela *relocs)
252b5132 3950{
7619e7c7 3951 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3952 Elf_Internal_Shdr *symtab_hdr;
3953 struct elf_link_hash_entry **sym_hashes;
3954 const Elf_Internal_Rela *rel;
3955 const Elf_Internal_Rela *rel_end;
a6aa5195 3956 asection *got2, *sreloc;
727fc41e 3957 struct elf_link_hash_entry *tga;
25dbc73a 3958
0e1862bb 3959 if (bfd_link_relocatable (info))
25dbc73a 3960 return TRUE;
252b5132 3961
c87b5a93
AM
3962 /* Don't do anything special with non-loaded, non-alloced sections.
3963 In particular, any relocs in such sections should not affect GOT
3964 and PLT reference counting (ie. we don't allow them to create GOT
3965 or PLT entries), there's no possibility or desire to optimize TLS
3966 relocs, and there's not much point in propagating relocs to shared
3967 libs that the dynamic linker won't relocate. */
3968 if ((sec->flags & SEC_ALLOC) == 0)
3969 return TRUE;
3970
252b5132 3971#ifdef DEBUG
25dbc73a
AM
3972 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3973 sec, abfd);
252b5132
RH
3974#endif
3975
0c8d6e5c 3976 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3977
25dbc73a
AM
3978 /* Initialize howto table if not already done. */
3979 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3980 ppc_elf_howto_init ();
3981
7619e7c7 3982 htab = ppc_elf_hash_table (info);
25f23106
AM
3983 if (htab->glink == NULL)
3984 {
3985 if (htab->elf.dynobj == NULL)
3986 htab->elf.dynobj = abfd;
3987 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3988 return FALSE;
3989 }
727fc41e
AM
3990 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3991 FALSE, FALSE, TRUE);
0ffa91dd 3992 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3993 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3994 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3995 sreloc = NULL;
3996
3997 rel_end = relocs + sec->reloc_count;
3998 for (rel = relocs; rel < rel_end; rel++)
3999 {
4000 unsigned long r_symndx;
4001 enum elf_ppc_reloc_type r_type;
4002 struct elf_link_hash_entry *h;
727fc41e 4003 int tls_type;
cbf95972 4004 struct plt_entry **ifunc;
25dbc73a
AM
4005
4006 r_symndx = ELF32_R_SYM (rel->r_info);
4007 if (r_symndx < symtab_hdr->sh_info)
4008 h = NULL;
4009 else
973a3492
L
4010 {
4011 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4012 while (h->root.type == bfd_link_hash_indirect
4013 || h->root.type == bfd_link_hash_warning)
4014 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4015
4016 /* PR15323, ref flags aren't set for references in the same
4017 object. */
bc4e12de 4018 h->root.non_ir_ref_regular = 1;
973a3492 4019 }
25dbc73a
AM
4020
4021 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4022 This shows up in particular in an R_PPC_ADDR32 in the eabi
4023 startup code. */
3b36f7e6 4024 if (h != NULL
ce558b89 4025 && htab->elf.sgot == NULL
3b36f7e6 4026 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4027 {
3b36f7e6
AM
4028 if (htab->elf.dynobj == NULL)
4029 htab->elf.dynobj = abfd;
4030 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4031 return FALSE;
4032 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4033 }
252b5132 4034
727fc41e 4035 tls_type = 0;
de972ffa 4036 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4037 ifunc = NULL;
06a162cf 4038 if (h == NULL && !htab->is_vxworks)
e054468f 4039 {
06a162cf
AM
4040 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4041 abfd, r_symndx);
4042 if (isym == NULL)
4043 return FALSE;
4044
0bed072f 4045 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4046 {
0bed072f 4047 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4048 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4049 PLT_IFUNC);
4050 if (ifunc == NULL)
e054468f
AM
4051 return FALSE;
4052
06a162cf
AM
4053 /* STT_GNU_IFUNC symbols must have a PLT entry;
4054 In a non-pie executable even when there are
4055 no plt calls. */
0e1862bb 4056 if (!bfd_link_pic (info)
0bed072f 4057 || is_branch_reloc (r_type))
e054468f 4058 {
0bed072f
AM
4059 bfd_vma addend = 0;
4060 if (r_type == R_PPC_PLTREL24)
4061 {
4062 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4063 if (bfd_link_pic (info))
0bed072f
AM
4064 addend = rel->r_addend;
4065 }
4066 if (!update_plt_info (abfd, ifunc, got2, addend))
4067 return FALSE;
e054468f
AM
4068 }
4069 }
25f23106
AM
4070 }
4071
de972ffa
AM
4072 if (!htab->is_vxworks
4073 && is_branch_reloc (r_type)
4074 && h != NULL
4075 && h == tga)
25f23106 4076 {
de972ffa
AM
4077 if (rel != relocs
4078 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4079 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4080 /* We have a new-style __tls_get_addr call with a marker
4081 reloc. */
4082 ;
4083 else
4084 /* Mark this section as having an old-style call. */
4085 sec->has_tls_get_addr_call = 1;
e054468f 4086 }
727fc41e 4087
25dbc73a
AM
4088 switch (r_type)
4089 {
727fc41e
AM
4090 case R_PPC_TLSGD:
4091 case R_PPC_TLSLD:
4092 /* These special tls relocs tie a call to __tls_get_addr with
4093 its parameter symbol. */
4094 break;
4095
25dbc73a
AM
4096 case R_PPC_GOT_TLSLD16:
4097 case R_PPC_GOT_TLSLD16_LO:
4098 case R_PPC_GOT_TLSLD16_HI:
4099 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4100 tls_type = TLS_TLS | TLS_LD;
4101 goto dogottls;
252b5132 4102
25dbc73a
AM
4103 case R_PPC_GOT_TLSGD16:
4104 case R_PPC_GOT_TLSGD16_LO:
4105 case R_PPC_GOT_TLSGD16_HI:
4106 case R_PPC_GOT_TLSGD16_HA:
4107 tls_type = TLS_TLS | TLS_GD;
4108 goto dogottls;
4109
4110 case R_PPC_GOT_TPREL16:
4111 case R_PPC_GOT_TPREL16_LO:
4112 case R_PPC_GOT_TPREL16_HI:
4113 case R_PPC_GOT_TPREL16_HA:
7c8bbca5 4114 if (bfd_link_dll (info))
25dbc73a
AM
4115 info->flags |= DF_STATIC_TLS;
4116 tls_type = TLS_TLS | TLS_TPREL;
4117 goto dogottls;
4118
4119 case R_PPC_GOT_DTPREL16:
4120 case R_PPC_GOT_DTPREL16_LO:
4121 case R_PPC_GOT_DTPREL16_HI:
4122 case R_PPC_GOT_DTPREL16_HA:
4123 tls_type = TLS_TLS | TLS_DTPREL;
4124 dogottls:
4125 sec->has_tls_reloc = 1;
1a0670f3 4126 /* Fall through. */
252b5132 4127
25dbc73a
AM
4128 /* GOT16 relocations */
4129 case R_PPC_GOT16:
4130 case R_PPC_GOT16_LO:
4131 case R_PPC_GOT16_HI:
4132 case R_PPC_GOT16_HA:
4133 /* This symbol requires a global offset table entry. */
ce558b89 4134 if (htab->elf.sgot == NULL)
25dbc73a
AM
4135 {
4136 if (htab->elf.dynobj == NULL)
4137 htab->elf.dynobj = abfd;
4138 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4139 return FALSE;
4140 }
4141 if (h != NULL)
4142 {
4143 h->got.refcount += 1;
4144 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4145 }
4146 else
4147 /* This is a global offset table entry for a local symbol. */
4148 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4149 return FALSE;
91e21fb7
AM
4150
4151 /* We may also need a plt entry if the symbol turns out to be
4152 an ifunc. */
0e1862bb 4153 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4154 {
4155 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4156 return FALSE;
4157 }
25dbc73a 4158 break;
252b5132 4159
25dbc73a
AM
4160 /* Indirect .sdata relocation. */
4161 case R_PPC_EMB_SDAI16:
0e1862bb 4162 if (bfd_link_pic (info))
25dbc73a
AM
4163 {
4164 bad_shared_reloc (abfd, r_type);
4165 return FALSE;
4166 }
93d1b056
AM
4167 htab->sdata[0].sym->ref_regular = 1;
4168 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4169 h, rel))
25dbc73a 4170 return FALSE;
046183de
AM
4171 if (h != NULL)
4172 {
4173 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4174 h->non_got_ref = TRUE;
4175 }
25dbc73a 4176 break;
252b5132 4177
25dbc73a
AM
4178 /* Indirect .sdata2 relocation. */
4179 case R_PPC_EMB_SDA2I16:
0e1862bb 4180 if (bfd_link_pic (info))
25dbc73a
AM
4181 {
4182 bad_shared_reloc (abfd, r_type);
4183 return FALSE;
4184 }
93d1b056
AM
4185 htab->sdata[1].sym->ref_regular = 1;
4186 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4187 h, rel))
25dbc73a 4188 return FALSE;
046183de
AM
4189 if (h != NULL)
4190 {
4191 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4192 h->non_got_ref = TRUE;
4193 }
25dbc73a 4194 break;
252b5132 4195
93d1b056
AM
4196 case R_PPC_SDAREL16:
4197 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4198 /* Fall through. */
93d1b056 4199
b9c361e0
JL
4200 case R_PPC_VLE_SDAREL_LO16A:
4201 case R_PPC_VLE_SDAREL_LO16D:
4202 case R_PPC_VLE_SDAREL_HI16A:
4203 case R_PPC_VLE_SDAREL_HI16D:
4204 case R_PPC_VLE_SDAREL_HA16A:
4205 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4206 if (h != NULL)
4207 {
4208 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4209 h->non_got_ref = TRUE;
4210 }
4211 break;
4212
b9c361e0
JL
4213 case R_PPC_VLE_REL8:
4214 case R_PPC_VLE_REL15:
4215 case R_PPC_VLE_REL24:
4216 case R_PPC_VLE_LO16A:
4217 case R_PPC_VLE_LO16D:
4218 case R_PPC_VLE_HI16A:
4219 case R_PPC_VLE_HI16D:
4220 case R_PPC_VLE_HA16A:
4221 case R_PPC_VLE_HA16D:
83eef883 4222 case R_PPC_VLE_ADDR20:
b9c361e0
JL
4223 break;
4224
25dbc73a 4225 case R_PPC_EMB_SDA2REL:
0e1862bb 4226 if (bfd_link_pic (info))
046183de
AM
4227 {
4228 bad_shared_reloc (abfd, r_type);
4229 return FALSE;
4230 }
93d1b056 4231 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4232 if (h != NULL)
4233 {
4234 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4235 h->non_got_ref = TRUE;
4236 }
4237 break;
4238
b9c361e0
JL
4239 case R_PPC_VLE_SDA21_LO:
4240 case R_PPC_VLE_SDA21:
25dbc73a
AM
4241 case R_PPC_EMB_SDA21:
4242 case R_PPC_EMB_RELSDA:
0e1862bb 4243 if (bfd_link_pic (info))
046183de
AM
4244 {
4245 bad_shared_reloc (abfd, r_type);
4246 return FALSE;
4247 }
046183de
AM
4248 if (h != NULL)
4249 {
4250 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4251 h->non_got_ref = TRUE;
4252 }
4253 break;
4254
25dbc73a
AM
4255 case R_PPC_EMB_NADDR32:
4256 case R_PPC_EMB_NADDR16:
4257 case R_PPC_EMB_NADDR16_LO:
4258 case R_PPC_EMB_NADDR16_HI:
4259 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4260 if (bfd_link_pic (info))
25dbc73a
AM
4261 {
4262 bad_shared_reloc (abfd, r_type);
4263 return FALSE;
4264 }
4dc4a9a5 4265 if (h != NULL)
046183de 4266 h->non_got_ref = TRUE;
25dbc73a 4267 break;
252b5132 4268
25dbc73a 4269 case R_PPC_PLTREL24:
de972ffa 4270 if (h == NULL)
6d78d0b9
AM
4271 break;
4272 /* Fall through */
4273 case R_PPC_PLT32:
25dbc73a
AM
4274 case R_PPC_PLTREL32:
4275 case R_PPC_PLT16_LO:
4276 case R_PPC_PLT16_HI:
4277 case R_PPC_PLT16_HA:
4278#ifdef DEBUG
4279 fprintf (stderr, "Reloc requires a PLT entry\n");
4280#endif
cbf95972 4281 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4282 if (h == NULL)
4283 {
cbf95972
AM
4284 if (ifunc == NULL)
4285 {
4286 /* It does not make sense to have a procedure linkage
4287 table entry for a non-ifunc local symbol. */
4288 info->callbacks->einfo
695344c0 4289 /* xgettext:c-format */
174d0a74 4290 (_("%H: %s reloc against local symbol\n"),
cbf95972
AM
4291 abfd, sec, rel->r_offset,
4292 ppc_elf_howto_table[r_type]->name);
4293 bfd_set_error (bfd_error_bad_value);
4294 return FALSE;
4295 }
25dbc73a 4296 }
a6aa5195
AM
4297 else
4298 {
016687f8 4299 bfd_vma addend = 0;
ee05f2fe 4300
016687f8
AM
4301 if (r_type == R_PPC_PLTREL24)
4302 {
4303 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4304 if (bfd_link_pic (info))
a877a2b6 4305 addend = rel->r_addend;
016687f8 4306 }
a6aa5195 4307 h->needs_plt = 1;
32af9f6e 4308 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4309 return FALSE;
4310 }
25dbc73a 4311 break;
ee05f2fe 4312
25dbc73a
AM
4313 /* The following relocations don't need to propagate the
4314 relocation if linking a shared object since they are
4315 section relative. */
4316 case R_PPC_SECTOFF:
4317 case R_PPC_SECTOFF_LO:
4318 case R_PPC_SECTOFF_HI:
4319 case R_PPC_SECTOFF_HA:
4320 case R_PPC_DTPREL16:
4321 case R_PPC_DTPREL16_LO:
4322 case R_PPC_DTPREL16_HI:
4323 case R_PPC_DTPREL16_HA:
4324 case R_PPC_TOC16:
4325 break;
252b5132 4326
d7128ce4
AM
4327 case R_PPC_REL16:
4328 case R_PPC_REL16_LO:
4329 case R_PPC_REL16_HI:
4330 case R_PPC_REL16_HA:
a680de9a 4331 case R_PPC_REL16DX_HA:
016687f8 4332 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4333 break;
4334
a6aa5195 4335 /* These are just markers. */
25dbc73a
AM
4336 case R_PPC_TLS:
4337 case R_PPC_EMB_MRKREF:
4338 case R_PPC_NONE:
4339 case R_PPC_max:
32af9f6e
AM
4340 case R_PPC_RELAX:
4341 case R_PPC_RELAX_PLT:
4342 case R_PPC_RELAX_PLTREL24:
7ba71655 4343 case R_PPC_16DX_HA:
25dbc73a 4344 break;
252b5132 4345
25dbc73a
AM
4346 /* These should only appear in dynamic objects. */
4347 case R_PPC_COPY:
4348 case R_PPC_GLOB_DAT:
4349 case R_PPC_JMP_SLOT:
4350 case R_PPC_RELATIVE:
e054468f 4351 case R_PPC_IRELATIVE:
25dbc73a 4352 break;
252b5132 4353
25dbc73a
AM
4354 /* These aren't handled yet. We'll report an error later. */
4355 case R_PPC_ADDR30:
4356 case R_PPC_EMB_RELSEC16:
4357 case R_PPC_EMB_RELST_LO:
4358 case R_PPC_EMB_RELST_HI:
4359 case R_PPC_EMB_RELST_HA:
4360 case R_PPC_EMB_BIT_FLD:
4361 break;
252b5132 4362
25dbc73a
AM
4363 /* This refers only to functions defined in the shared library. */
4364 case R_PPC_LOCAL24PC:
727fc41e 4365 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4366 {
4367 htab->plt_type = PLT_OLD;
4368 htab->old_bfd = abfd;
4369 }
c7e17e05
AM
4370 if (h != NULL && h->type == STT_GNU_IFUNC)
4371 {
c7e17e05
AM
4372 h->needs_plt = 1;
4373 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4374 return FALSE;
4375 }
25dbc73a 4376 break;
252b5132 4377
25dbc73a
AM
4378 /* This relocation describes the C++ object vtable hierarchy.
4379 Reconstruct it for later use during GC. */
4380 case R_PPC_GNU_VTINHERIT:
4381 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4382 return FALSE;
4383 break;
252b5132 4384
25dbc73a
AM
4385 /* This relocation describes which C++ vtable entries are actually
4386 used. Record for later use during GC. */
4387 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4388 BFD_ASSERT (h != NULL);
4389 if (h != NULL
4390 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4391 return FALSE;
4392 break;
252b5132 4393
7c8bbca5 4394 /* We shouldn't really be seeing TPREL32. */
25dbc73a 4395 case R_PPC_TPREL32:
1d483afe
AM
4396 case R_PPC_TPREL16:
4397 case R_PPC_TPREL16_LO:
4398 case R_PPC_TPREL16_HI:
4399 case R_PPC_TPREL16_HA:
7c8bbca5 4400 if (bfd_link_dll (info))
25dbc73a
AM
4401 info->flags |= DF_STATIC_TLS;
4402 goto dodyn;
252b5132 4403
25dbc73a
AM
4404 /* Nor these. */
4405 case R_PPC_DTPMOD32:
4406 case R_PPC_DTPREL32:
4407 goto dodyn;
252b5132 4408
9edfd1af
AM
4409 case R_PPC_REL32:
4410 if (h == NULL
4411 && got2 != NULL
4412 && (sec->flags & SEC_CODE) != 0
0e1862bb 4413 && bfd_link_pic (info)
4a3dc543 4414 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4415 {
4416 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4417 the start of a function, which assembles to a REL32
4418 reference to .got2. If we detect one of these, then
4419 force the old PLT layout because the linker cannot
4420 reliably deduce the GOT pointer value needed for
4421 PLT call stubs. */
4422 asection *s;
87d72d41 4423 Elf_Internal_Sym *isym;
9edfd1af 4424
87d72d41
AM
4425 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4426 abfd, r_symndx);
4427 if (isym == NULL)
4428 return FALSE;
4429
4430 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4431 if (s == got2)
016687f8
AM
4432 {
4433 htab->plt_type = PLT_OLD;
4434 htab->old_bfd = abfd;
4435 }
9edfd1af 4436 }
7123df0e 4437 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4438 break;
625af618
AM
4439 /* fall through */
4440
4441 case R_PPC_ADDR32:
4442 case R_PPC_ADDR16:
4443 case R_PPC_ADDR16_LO:
4444 case R_PPC_ADDR16_HI:
4445 case R_PPC_ADDR16_HA:
4446 case R_PPC_UADDR32:
4447 case R_PPC_UADDR16:
0e1862bb 4448 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4449 {
4450 /* We may need a plt entry if the symbol turns out to be
4451 a function defined in a dynamic object. */
3ec01793 4452 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4453 return FALSE;
4454
4455 /* We may need a copy reloc too. */
4456 h->non_got_ref = 1;
4457 h->pointer_equality_needed = 1;
d3e454b9
AM
4458 if (r_type == R_PPC_ADDR16_HA)
4459 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4460 if (r_type == R_PPC_ADDR16_LO)
4461 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4462 }
4463 goto dodyn;
9edfd1af 4464
25dbc73a
AM
4465 case R_PPC_REL24:
4466 case R_PPC_REL14:
4467 case R_PPC_REL14_BRTAKEN:
4468 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4469 if (h == NULL)
25dbc73a 4470 break;
7123df0e 4471 if (h == htab->elf.hgot)
d7128ce4 4472 {
7123df0e 4473 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4474 {
4475 htab->plt_type = PLT_OLD;
4476 htab->old_bfd = abfd;
4477 }
d7128ce4
AM
4478 break;
4479 }
25dbc73a 4480 /* fall through */
ee05f2fe 4481
25dbc73a 4482 case R_PPC_ADDR24:
25dbc73a
AM
4483 case R_PPC_ADDR14:
4484 case R_PPC_ADDR14_BRTAKEN:
4485 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4486 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4487 {
4488 /* We may need a plt entry if the symbol turns out to be
4489 a function defined in a dynamic object. */
e054468f 4490 h->needs_plt = 1;
de972ffa 4491 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4492 return FALSE;
625af618 4493 break;
25dbc73a 4494 }
7619e7c7 4495
25dbc73a
AM
4496 dodyn:
4497 /* If we are creating a shared library, and this is a reloc
4498 against a global symbol, or a non PC relative reloc
4499 against a local symbol, then we need to copy the reloc
4500 into the shared library. However, if we are linking with
4501 -Bsymbolic, we do not need to copy a reloc against a
4502 global symbol which is defined in an object we are
4503 including in the link (i.e., DEF_REGULAR is set). At
4504 this point we have not seen all the input files, so it is
4505 possible that DEF_REGULAR is not set now but will be set
4506 later (it is never cleared). In case of a weak definition,
4507 DEF_REGULAR may be cleared later by a strong definition in
4508 a shared library. We account for that possibility below by
4509 storing information in the dyn_relocs field of the hash
4510 table entry. A similar situation occurs when creating
4511 shared libraries and symbol visibility changes render the
4512 symbol local.
7619e7c7 4513
25dbc73a
AM
4514 If on the other hand, we are creating an executable, we
4515 may need to keep relocations for symbols satisfied by a
4516 dynamic library if we manage to avoid copy relocs for the
4517 symbol. */
0e1862bb 4518 if ((bfd_link_pic (info)
1d483afe 4519 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4520 || (h != NULL
198f1157 4521 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4522 || h->root.type == bfd_link_hash_defweak
4523 || !h->def_regular))))
4524 || (ELIMINATE_COPY_RELOCS
0e1862bb 4525 && !bfd_link_pic (info)
25dbc73a
AM
4526 && h != NULL
4527 && (h->root.type == bfd_link_hash_defweak
de972ffa 4528 || !h->def_regular)))
25dbc73a 4529 {
25dbc73a
AM
4530#ifdef DEBUG
4531 fprintf (stderr,
4532 "ppc_elf_check_relocs needs to "
4533 "create relocation for %s\n",
4534 (h && h->root.root.string
4535 ? h->root.root.string : "<unknown>"));
4536#endif
4537 if (sreloc == NULL)
4538 {
c9a2f333
AM
4539 if (htab->elf.dynobj == NULL)
4540 htab->elf.dynobj = abfd;
83bac4b0
NC
4541
4542 sreloc = _bfd_elf_make_dynamic_reloc_section
4543 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4544
25dbc73a 4545 if (sreloc == NULL)
83bac4b0 4546 return FALSE;
25dbc73a 4547 }
7619e7c7 4548
25dbc73a
AM
4549 /* If this is a global symbol, we count the number of
4550 relocations we need for this symbol. */
4551 if (h != NULL)
4552 {
f95f8542
AM
4553 struct elf_dyn_relocs *p;
4554 struct elf_dyn_relocs **rel_head;
4555
91d6fa6a 4556 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4557 p = *rel_head;
4558 if (p == NULL || p->sec != sec)
4559 {
4560 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4561 if (p == NULL)
4562 return FALSE;
4563 p->next = *rel_head;
4564 *rel_head = p;
4565 p->sec = sec;
4566 p->count = 0;
4567 p->pc_count = 0;
4568 }
4569 p->count += 1;
4570 if (!must_be_dyn_reloc (info, r_type))
4571 p->pc_count += 1;
25dbc73a
AM
4572 }
4573 else
4574 {
4575 /* Track dynamic relocs needed for local syms too.
4576 We really need local syms available to do this
4577 easily. Oh well. */
f95f8542
AM
4578 struct ppc_dyn_relocs *p;
4579 struct ppc_dyn_relocs **rel_head;
4580 bfd_boolean is_ifunc;
25dbc73a 4581 asection *s;
6edfbbad 4582 void *vpp;
87d72d41 4583 Elf_Internal_Sym *isym;
6edfbbad 4584
87d72d41
AM
4585 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4586 abfd, r_symndx);
4587 if (isym == NULL)
25dbc73a 4588 return FALSE;
7fce784e 4589
87d72d41
AM
4590 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4591 if (s == NULL)
4592 s = sec;
4593
6edfbbad 4594 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4595 rel_head = (struct ppc_dyn_relocs **) vpp;
4596 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4597 p = *rel_head;
4598 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4599 p = p->next;
4600 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4601 {
4602 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4603 if (p == NULL)
4604 return FALSE;
4605 p->next = *rel_head;
4606 *rel_head = p;
4607 p->sec = sec;
4608 p->ifunc = is_ifunc;
4609 p->count = 0;
4610 }
4611 p->count += 1;
25dbc73a 4612 }
7619e7c7 4613 }
25dbc73a
AM
4614
4615 break;
7619e7c7
AM
4616 }
4617 }
ee05f2fe 4618
25dbc73a
AM
4619 return TRUE;
4620}
4621\f
005d79fd
AM
4622/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4623 and OBFD, and merge non-conflicting ones. */
4624void
50e03d47 4625_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4626{
50e03d47 4627 bfd *obfd = info->output_bfd;
c6e65352
DJ
4628 obj_attribute *in_attr, *in_attrs;
4629 obj_attribute *out_attr, *out_attrs;
34c8bcba 4630
c6e65352
DJ
4631 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4632 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4633
c6e65352
DJ
4634 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4635 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4636
c6e65352 4637 if (in_attr->i != out_attr->i)
34c8bcba 4638 {
005d79fd
AM
4639 int in_fp = in_attr->i & 3;
4640 int out_fp = out_attr->i & 3;
4641
4642 if (in_fp == 0)
34c8bcba 4643 ;
005d79fd
AM
4644 else if (out_fp == 0)
4645 {
4646 out_attr->type = 1;
4647 out_attr->i ^= in_fp;
4648 }
4649 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4650 _bfd_error_handler
695344c0 4651 /* xgettext:c-format */
34c8bcba 4652 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4653 else if (out_fp == 2 && in_fp != 2)
4654 _bfd_error_handler
695344c0 4655 /* xgettext:c-format */
005d79fd
AM
4656 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4657 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4658 _bfd_error_handler
695344c0 4659 /* xgettext:c-format */
005d79fd
AM
4660 (_("Warning: %B uses double-precision hard float, "
4661 "%B uses single-precision hard float"), obfd, ibfd);
4662 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4663 _bfd_error_handler
695344c0 4664 /* xgettext:c-format */
005d79fd
AM
4665 (_("Warning: %B uses double-precision hard float, "
4666 "%B uses single-precision hard float"), ibfd, obfd);
4667
4668 in_fp = in_attr->i & 0xc;
4669 out_fp = out_attr->i & 0xc;
4670 if (in_fp == 0)
4671 ;
4672 else if (out_fp == 0)
4673 {
4674 out_attr->type = 1;
4675 out_attr->i ^= in_fp;
4676 }
4677 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4678 _bfd_error_handler
695344c0 4679 /* xgettext:c-format */
005d79fd
AM
4680 (_("Warning: %B uses 64-bit long double, "
4681 "%B uses 128-bit long double"), ibfd, obfd);
4682 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4683 _bfd_error_handler
695344c0 4684 /* xgettext:c-format */
005d79fd
AM
4685 (_("Warning: %B uses 64-bit long double, "
4686 "%B uses 128-bit long double"), obfd, ibfd);
4687 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4688 _bfd_error_handler
695344c0 4689 /* xgettext:c-format */
005d79fd
AM
4690 (_("Warning: %B uses IBM long double, "
4691 "%B uses IEEE long double"), ibfd, obfd);
4692 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4693 _bfd_error_handler
695344c0 4694 /* xgettext:c-format */
005d79fd
AM
4695 (_("Warning: %B uses IBM long double, "
4696 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4697 }
005d79fd
AM
4698}
4699
4700/* Merge object attributes from IBFD into OBFD. Warn if
4701 there are conflicting attributes. */
4702static bfd_boolean
50e03d47 4703ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4704{
50e03d47 4705 bfd *obfd;
005d79fd
AM
4706 obj_attribute *in_attr, *in_attrs;
4707 obj_attribute *out_attr, *out_attrs;
4708
50e03d47 4709 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4710
50e03d47 4711 obfd = info->output_bfd;
005d79fd
AM
4712 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4713 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4714
4715 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4716 merge non-conflicting ones. */
4717 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4718 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4719 if (in_attr->i != out_attr->i)
4720 {
005d79fd
AM
4721 int in_vec = in_attr->i & 3;
4722 int out_vec = out_attr->i & 3;
c6e65352 4723
005d79fd
AM
4724 if (in_vec == 0)
4725 ;
4726 else if (out_vec == 0)
c6e65352 4727 {
005d79fd
AM
4728 out_attr->type = 1;
4729 out_attr->i = in_vec;
c6e65352 4730 }
c6e65352
DJ
4731 /* For now, allow generic to transition to AltiVec or SPE
4732 without a warning. If GCC marked files with their stack
4733 alignment and used don't-care markings for files which are
4734 not affected by the vector ABI, we could warn about this
4735 case too. */
005d79fd 4736 else if (in_vec == 1)
c6e65352 4737 ;
005d79fd
AM
4738 else if (out_vec == 1)
4739 {
4740 out_attr->type = 1;
4741 out_attr->i = in_vec;
4742 }
4743 else if (out_vec < in_vec)
c6e65352 4744 _bfd_error_handler
695344c0 4745 /* xgettext:c-format */
005d79fd
AM
4746 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4747 obfd, ibfd);
4748 else if (out_vec > in_vec)
c6e65352 4749 _bfd_error_handler
695344c0 4750 /* xgettext:c-format */
005d79fd
AM
4751 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4752 ibfd, obfd);
34c8bcba
JM
4753 }
4754
f82e0623
NF
4755 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4756 and merge non-conflicting ones. */
4757 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4758 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4759 if (in_attr->i != out_attr->i)
4760 {
005d79fd
AM
4761 int in_struct = in_attr->i & 3;
4762 int out_struct = out_attr->i & 3;
4763
4764 if (in_struct == 0 || in_struct == 3)
f82e0623 4765 ;
005d79fd
AM
4766 else if (out_struct == 0)
4767 {
4768 out_attr->type = 1;
4769 out_attr->i = in_struct;
4770 }
4771 else if (out_struct < in_struct)
4772 _bfd_error_handler
695344c0 4773 /* xgettext:c-format */
005d79fd
AM
4774 (_("Warning: %B uses r3/r4 for small structure returns, "
4775 "%B uses memory"), obfd, ibfd);
4776 else if (out_struct > in_struct)
4777 _bfd_error_handler
695344c0 4778 /* xgettext:c-format */
005d79fd
AM
4779 (_("Warning: %B uses r3/r4 for small structure returns, "
4780 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4781 }
4782
34c8bcba 4783 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4784 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4785
4786 return TRUE;
4787}
4788
8853c3d3
AM
4789/* Merge backend specific data from an object file to the output
4790 object file when linking. */
4791
4792static bfd_boolean
50e03d47 4793ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4794{
50e03d47 4795 bfd *obfd = info->output_bfd;
8853c3d3
AM
4796 flagword old_flags;
4797 flagword new_flags;
4798 bfd_boolean error;
4799
0c8d6e5c 4800 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4801 return TRUE;
4802
cc643b88 4803 /* Check if we have the same endianness. */
50e03d47 4804 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4805 return FALSE;
4806
50e03d47 4807 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4808 return FALSE;
4809
8853c3d3
AM
4810 new_flags = elf_elfheader (ibfd)->e_flags;
4811 old_flags = elf_elfheader (obfd)->e_flags;
4812 if (!elf_flags_init (obfd))
4813 {
4814 /* First call, no flags set. */
4815 elf_flags_init (obfd) = TRUE;
4816 elf_elfheader (obfd)->e_flags = new_flags;
4817 }
4818
4819 /* Compatible flags are ok. */
4820 else if (new_flags == old_flags)
4821 ;
4822
4823 /* Incompatible flags. */
4824 else
4825 {
4826 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4827 to be linked with either. */
4828 error = FALSE;
4829 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4830 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4831 {
4832 error = TRUE;
4eca0228 4833 _bfd_error_handler
8853c3d3
AM
4834 (_("%B: compiled with -mrelocatable and linked with "
4835 "modules compiled normally"), ibfd);
4836 }
4837 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4838 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4839 {
4840 error = TRUE;
4eca0228 4841 _bfd_error_handler
8853c3d3
AM
4842 (_("%B: compiled normally and linked with "
4843 "modules compiled with -mrelocatable"), ibfd);
4844 }
4845
4846 /* The output is -mrelocatable-lib iff both the input files are. */
4847 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4848 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4849
4850 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4851 but each input file is either -mrelocatable or -mrelocatable-lib. */
4852 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4853 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4854 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4855 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4856
4857 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4858 any module uses it. */
4859 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4860
4861 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4862 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4863
4864 /* Warn about any other mismatches. */
4865 if (new_flags != old_flags)
4866 {
4867 error = TRUE;
4eca0228 4868 _bfd_error_handler
695344c0 4869 /* xgettext:c-format */
cd9af601
AM
4870 (_("%B: uses different e_flags (%#x) fields "
4871 "than previous modules (%#x)"),
4872 ibfd, new_flags, old_flags);
8853c3d3
AM
4873 }
4874
4875 if (error)
4876 {
4877 bfd_set_error (bfd_error_bad_value);
4878 return FALSE;
4879 }
4880 }
4881
4882 return TRUE;
4883}
b9c361e0
JL
4884
4885static void
95f0d0d2 4886ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
4887 asection *input_section,
4888 unsigned long offset,
95f0d0d2 4889 bfd_byte *loc,
86c95733 4890 bfd_vma value,
08dc996f
AM
4891 split16_format_type split16_format,
4892 bfd_boolean fixup)
b9c361e0 4893{
08dc996f 4894 unsigned int insn, opcode, top5;
b9c361e0 4895
95f0d0d2 4896 insn = bfd_get_32 (input_bfd, loc);
673cff9b 4897 opcode = insn & 0xfc00f800;
08dc996f
AM
4898 if (opcode == E_OR2I_INSN
4899 || opcode == E_AND2I_DOT_INSN
4900 || opcode == E_OR2IS_INSN
4901 || opcode == E_LIS_INSN
4902 || opcode == E_AND2IS_DOT_INSN)
4903 {
4904 if (split16_format != split16a_type)
4905 {
4906 if (fixup)
4907 split16_format = split16a_type;
4908 else
4909 _bfd_error_handler
4910 /* xgettext:c-format */
4911 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4912 input_bfd, input_section, offset, opcode);
4913 }
4914 }
4915 else if (opcode == E_ADD2I_DOT_INSN
4916 || opcode == E_ADD2IS_INSN
4917 || opcode == E_CMP16I_INSN
4918 || opcode == E_MULL2I_INSN
4919 || opcode == E_CMPL16I_INSN
4920 || opcode == E_CMPH16I_INSN
4921 || opcode == E_CMPHL16I_INSN)
4922 {
4923 if (split16_format != split16d_type)
4924 {
4925 if (fixup)
4926 split16_format = split16d_type;
4927 else
4928 _bfd_error_handler
4929 /* xgettext:c-format */
4930 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4931 input_bfd, input_section, offset, opcode);
4932 }
4933 }
86c95733 4934 top5 = value & 0xf800;
5499c7c7
AM
4935 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
4936 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
b9c361e0 4937 insn |= top5;
86c95733 4938 insn |= value & 0x7ff;
95f0d0d2 4939 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 4940}
83eef883
AFB
4941
4942static void
4943ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
4944{
4945 unsigned int insn;
4946
4947 insn = bfd_get_32 (output_bfd, loc);
4948 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
4949 /* Top 4 bits of value to 17..20. */
4950 insn |= (value & 0xf0000) >> 5;
4951 /* Next 5 bits of the value to 11..15. */
4952 insn |= (value & 0xf800) << 5;
4953 /* And the final 11 bits of the value to bits 21 to 31. */
4954 insn |= value & 0x7ff;
4955 bfd_put_32 (output_bfd, insn, loc);
4956}
4957
8853c3d3 4958\f
d7128ce4
AM
4959/* Choose which PLT scheme to use, and set .plt flags appropriately.
4960 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4961int
4962ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4963 struct bfd_link_info *info)
d7128ce4
AM
4964{
4965 struct ppc_elf_link_hash_table *htab;
9d8504b1 4966 flagword flags;
d7128ce4
AM
4967
4968 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4969
4970 if (htab->plt_type == PLT_UNSET)
016687f8 4971 {
b3874e1a
AM
4972 struct elf_link_hash_entry *h;
4973
5446cbdf 4974 if (htab->params->plt_style == PLT_OLD)
016687f8 4975 htab->plt_type = PLT_OLD;
0e1862bb 4976 else if (bfd_link_pic (info)
b3874e1a
AM
4977 && htab->elf.dynamic_sections_created
4978 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4979 FALSE, FALSE, TRUE)) != NULL
4980 && (h->type == STT_FUNC
4981 || h->needs_plt)
4982 && h->ref_regular
4983 && !(SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 4984 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
b3874e1a
AM
4985 {
4986 /* Profiling of shared libs (and pies) is not supported with
4987 secure plt, because ppc32 does profiling before a
4988 function prologue and a secure plt pic call stubs needs
4989 r30 to be set up. */
4990 htab->plt_type = PLT_OLD;
4991 }
016687f8
AM
4992 else
4993 {
4994 bfd *ibfd;
5446cbdf 4995 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4996
4997 /* Look through the reloc flags left by ppc_elf_check_relocs.
4998 Use the old style bss plt if a file makes plt calls
4999 without using the new relocs, and if ld isn't given
5000 --secure-plt and we never see REL16 relocs. */
5001 if (plt_type == PLT_UNSET)
5002 plt_type = PLT_OLD;
c72f2fb2 5003 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 5004 if (is_ppc_elf (ibfd))
016687f8
AM
5005 {
5006 if (ppc_elf_tdata (ibfd)->has_rel16)
5007 plt_type = PLT_NEW;
5008 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5009 {
5010 plt_type = PLT_OLD;
5011 htab->old_bfd = ibfd;
5012 break;
5013 }
5014 }
5015 htab->plt_type = plt_type;
5016 }
5017 }
5446cbdf 5018 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5019 {
5020 if (htab->old_bfd != NULL)
5021 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5022 htab->old_bfd);
5023 else
5024 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5025 }
d7128ce4 5026
4a3dc543 5027 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5028
4a3dc543 5029 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5030 {
5031 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5032 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5033
5034 /* The new PLT is a loaded section. */
ce558b89
AM
5035 if (htab->elf.splt != NULL
5036 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5037 return -1;
5038
5039 /* The new GOT is not executable. */
ce558b89
AM
5040 if (htab->elf.sgot != NULL
5041 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5042 return -1;
d7128ce4
AM
5043 }
5044 else
5045 {
5046 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5047 if (htab->glink != NULL
5048 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5049 return -1;
d7128ce4 5050 }
4a3dc543 5051 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5052}
5053\f
25dbc73a
AM
5054/* Return the section that should be marked against GC for a given
5055 relocation. */
586119b3 5056
25dbc73a
AM
5057static asection *
5058ppc_elf_gc_mark_hook (asection *sec,
07adf181 5059 struct bfd_link_info *info,
25dbc73a
AM
5060 Elf_Internal_Rela *rel,
5061 struct elf_link_hash_entry *h,
5062 Elf_Internal_Sym *sym)
5063{
5064 if (h != NULL)
07adf181
AM
5065 switch (ELF32_R_TYPE (rel->r_info))
5066 {
5067 case R_PPC_GNU_VTINHERIT:
5068 case R_PPC_GNU_VTENTRY:
5069 return NULL;
5070 }
5071
5072 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5073}
a876ecf9 5074
25dbc73a
AM
5075/* Update the got, plt and dynamic reloc reference counts for the
5076 section being removed. */
5077
5078static bfd_boolean
5079ppc_elf_gc_sweep_hook (bfd *abfd,
5080 struct bfd_link_info *info,
5081 asection *sec,
5082 const Elf_Internal_Rela *relocs)
5083{
5084 struct ppc_elf_link_hash_table *htab;
5085 Elf_Internal_Shdr *symtab_hdr;
5086 struct elf_link_hash_entry **sym_hashes;
5087 bfd_signed_vma *local_got_refcounts;
5088 const Elf_Internal_Rela *rel, *relend;
a6aa5195 5089 asection *got2;
25dbc73a 5090
0e1862bb 5091 if (bfd_link_relocatable (info))
7dda2462
TG
5092 return TRUE;
5093
c87b5a93
AM
5094 if ((sec->flags & SEC_ALLOC) == 0)
5095 return TRUE;
5096
25dbc73a
AM
5097 elf_section_data (sec)->local_dynrel = NULL;
5098
5099 htab = ppc_elf_hash_table (info);
0ffa91dd 5100 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
5101 sym_hashes = elf_sym_hashes (abfd);
5102 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 5103 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
5104
5105 relend = relocs + sec->reloc_count;
5106 for (rel = relocs; rel < relend; rel++)
5107 {
5108 unsigned long r_symndx;
5109 enum elf_ppc_reloc_type r_type;
5110 struct elf_link_hash_entry *h = NULL;
5111
5112 r_symndx = ELF32_R_SYM (rel->r_info);
5113 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 5114 {
6061a67d 5115 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
5116 struct ppc_elf_link_hash_entry *eh;
5117
5118 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5119 while (h->root.type == bfd_link_hash_indirect
5120 || h->root.type == bfd_link_hash_warning)
5121 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5122 eh = (struct ppc_elf_link_hash_entry *) h;
5123
5124 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5125 if (p->sec == sec)
5126 {
5127 /* Everything must go for SEC. */
5128 *pp = p->next;
5129 break;
5130 }
a876ecf9 5131 }
ee05f2fe 5132
25dbc73a 5133 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
5134 if (!htab->is_vxworks
5135 && h == NULL
5136 && local_got_refcounts != NULL
0e1862bb 5137 && (!bfd_link_pic (info)
de972ffa 5138 || is_branch_reloc (r_type)))
e054468f 5139 {
de972ffa
AM
5140 struct plt_entry **local_plt = (struct plt_entry **)
5141 (local_got_refcounts + symtab_hdr->sh_info);
5142 char *local_got_tls_masks = (char *)
5143 (local_plt + symtab_hdr->sh_info);
5144 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 5145 {
de972ffa 5146 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
5147 bfd_vma addend = 0;
5148 struct plt_entry *ent;
5149
0e1862bb 5150 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5151 addend = rel->r_addend;
5152 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
5153 if (ent->plt.refcount > 0)
5154 ent->plt.refcount -= 1;
5155 continue;
5156 }
5157 }
5158
25dbc73a 5159 switch (r_type)
ee05f2fe 5160 {
25dbc73a
AM
5161 case R_PPC_GOT_TLSLD16:
5162 case R_PPC_GOT_TLSLD16_LO:
5163 case R_PPC_GOT_TLSLD16_HI:
5164 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
5165 case R_PPC_GOT_TLSGD16:
5166 case R_PPC_GOT_TLSGD16_LO:
5167 case R_PPC_GOT_TLSGD16_HI:
5168 case R_PPC_GOT_TLSGD16_HA:
5169 case R_PPC_GOT_TPREL16:
5170 case R_PPC_GOT_TPREL16_LO:
5171 case R_PPC_GOT_TPREL16_HI:
5172 case R_PPC_GOT_TPREL16_HA:
5173 case R_PPC_GOT_DTPREL16:
5174 case R_PPC_GOT_DTPREL16_LO:
5175 case R_PPC_GOT_DTPREL16_HI:
5176 case R_PPC_GOT_DTPREL16_HA:
5177 case R_PPC_GOT16:
5178 case R_PPC_GOT16_LO:
5179 case R_PPC_GOT16_HI:
5180 case R_PPC_GOT16_HA:
5181 if (h != NULL)
ee05f2fe 5182 {
25dbc73a
AM
5183 if (h->got.refcount > 0)
5184 h->got.refcount--;
0e1862bb 5185 if (!bfd_link_pic (info))
91e21fb7
AM
5186 {
5187 struct plt_entry *ent;
5188
5189 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 5190 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
5191 ent->plt.refcount -= 1;
5192 }
ee05f2fe 5193 }
25dbc73a
AM
5194 else if (local_got_refcounts != NULL)
5195 {
5196 if (local_got_refcounts[r_symndx] > 0)
5197 local_got_refcounts[r_symndx]--;
5198 }
5199 break;
ee05f2fe 5200
25dbc73a
AM
5201 case R_PPC_REL24:
5202 case R_PPC_REL14:
5203 case R_PPC_REL14_BRTAKEN:
5204 case R_PPC_REL14_BRNTAKEN:
5205 case R_PPC_REL32:
3b36f7e6 5206 if (h == NULL || h == htab->elf.hgot)
25dbc73a 5207 break;
1a0670f3 5208 /* Fall through. */
ee05f2fe 5209
25dbc73a
AM
5210 case R_PPC_ADDR32:
5211 case R_PPC_ADDR24:
5212 case R_PPC_ADDR16:
5213 case R_PPC_ADDR16_LO:
5214 case R_PPC_ADDR16_HI:
5215 case R_PPC_ADDR16_HA:
5216 case R_PPC_ADDR14:
5217 case R_PPC_ADDR14_BRTAKEN:
5218 case R_PPC_ADDR14_BRNTAKEN:
5219 case R_PPC_UADDR32:
5220 case R_PPC_UADDR16:
0e1862bb 5221 if (bfd_link_pic (info))
87538722 5222 break;
1a0670f3 5223 /* Fall through. */
87538722 5224
25dbc73a
AM
5225 case R_PPC_PLT32:
5226 case R_PPC_PLTREL24:
87538722 5227 case R_PPC_PLTREL32:
25dbc73a
AM
5228 case R_PPC_PLT16_LO:
5229 case R_PPC_PLT16_HI:
5230 case R_PPC_PLT16_HA:
5231 if (h != NULL)
5232 {
a877a2b6
AM
5233 bfd_vma addend = 0;
5234 struct plt_entry *ent;
5235
0e1862bb 5236 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
a877a2b6
AM
5237 addend = rel->r_addend;
5238 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5239 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5240 ent->plt.refcount -= 1;
25dbc73a
AM
5241 }
5242 break;
ee05f2fe 5243
25dbc73a
AM
5244 default:
5245 break;
5246 }
7fce784e 5247 }
7fce784e
AS
5248 return TRUE;
5249}
25dbc73a 5250\f
3a71aa26
AM
5251/* Set plt output section type, htab->tls_get_addr, and call the
5252 generic ELF tls_setup function. */
7fce784e 5253
25dbc73a 5254asection *
5446cbdf 5255ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5256{
25dbc73a 5257 struct ppc_elf_link_hash_table *htab;
7fce784e 5258
25dbc73a 5259 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5260 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5261 FALSE, FALSE, TRUE);
f01f1741
AM
5262 if (htab->plt_type != PLT_NEW)
5263 htab->params->no_tls_get_addr_opt = TRUE;
5264
5446cbdf 5265 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5266 {
5267 struct elf_link_hash_entry *opt, *tga;
5268 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5269 FALSE, FALSE, TRUE);
5270 if (opt != NULL
5271 && (opt->root.type == bfd_link_hash_defined
5272 || opt->root.type == bfd_link_hash_defweak))
5273 {
5274 /* If glibc supports an optimized __tls_get_addr call stub,
5275 signalled by the presence of __tls_get_addr_opt, and we'll
5276 be calling __tls_get_addr via a plt call stub, then
5277 make __tls_get_addr point to __tls_get_addr_opt. */
5278 tga = htab->tls_get_addr;
5279 if (htab->elf.dynamic_sections_created
5280 && tga != NULL
5281 && (tga->type == STT_FUNC
5282 || tga->needs_plt)
5283 && !(SYMBOL_CALLS_LOCAL (info, tga)
21d68fcd 5284 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
a7f2871e
AM
5285 {
5286 struct plt_entry *ent;
32af9f6e
AM
5287 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5288 if (ent->plt.refcount > 0)
5289 break;
5290 if (ent != NULL)
a7f2871e
AM
5291 {
5292 tga->root.type = bfd_link_hash_indirect;
5293 tga->root.u.i.link = &opt->root;
5294 ppc_elf_copy_indirect_symbol (info, opt, tga);
b531344c 5295 opt->mark = 1;
a7f2871e
AM
5296 if (opt->dynindx != -1)
5297 {
5298 /* Use __tls_get_addr_opt in dynamic relocations. */
5299 opt->dynindx = -1;
5300 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5301 opt->dynstr_index);
5302 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5303 return FALSE;
5304 }
5305 htab->tls_get_addr = opt;
5306 }
5307 }
5308 }
5309 else
5446cbdf 5310 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5311 }
4a3dc543 5312 if (htab->plt_type == PLT_NEW
ce558b89
AM
5313 && htab->elf.splt != NULL
5314 && htab->elf.splt->output_section != NULL)
d7128ce4 5315 {
ce558b89
AM
5316 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5317 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5318 }
5319
25dbc73a 5320 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5321}
5322
3a71aa26
AM
5323/* Return TRUE iff REL is a branch reloc with a global symbol matching
5324 HASH. */
5325
5326static bfd_boolean
5327branch_reloc_hash_match (const bfd *ibfd,
5328 const Elf_Internal_Rela *rel,
5329 const struct elf_link_hash_entry *hash)
5330{
5331 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5332 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5333 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5334
e054468f 5335 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5336 {
5337 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5338 struct elf_link_hash_entry *h;
5339
5340 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5341 while (h->root.type == bfd_link_hash_indirect
5342 || h->root.type == bfd_link_hash_warning)
5343 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5344 if (h == hash)
5345 return TRUE;
5346 }
5347 return FALSE;
5348}
5349
25dbc73a
AM
5350/* Run through all the TLS relocs looking for optimization
5351 opportunities. */
252b5132 5352
25dbc73a
AM
5353bfd_boolean
5354ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5355 struct bfd_link_info *info)
252b5132 5356{
7fce784e 5357 bfd *ibfd;
25dbc73a
AM
5358 asection *sec;
5359 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5360 int pass;
252b5132 5361
3cbc1e5e 5362 if (!bfd_link_executable (info))
25dbc73a 5363 return TRUE;
252b5132 5364
7619e7c7 5365 htab = ppc_elf_hash_table (info);
663a1470
AM
5366 if (htab == NULL)
5367 return FALSE;
5368
b7fcf6f6
AM
5369 /* Make two passes through the relocs. First time check that tls
5370 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5371 followed by such a call. If they are not, don't do any tls
5372 optimization. On the second pass twiddle tls_mask flags to
5373 notify relocate_section that optimization can be done, and
5374 adjust got and plt refcounts. */
b7fcf6f6 5375 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5376 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5377 {
5378 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5379 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5380 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5381
b7fcf6f6
AM
5382 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5383 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5384 {
5385 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5386 int expecting_tls_get_addr = 0;
252b5132 5387
b7fcf6f6
AM
5388 /* Read the relocations. */
5389 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5390 info->keep_memory);
5391 if (relstart == NULL)
5392 return FALSE;
7619e7c7 5393
b7fcf6f6
AM
5394 relend = relstart + sec->reloc_count;
5395 for (rel = relstart; rel < relend; rel++)
5396 {
5397 enum elf_ppc_reloc_type r_type;
5398 unsigned long r_symndx;
5399 struct elf_link_hash_entry *h = NULL;
5400 char *tls_mask;
5401 char tls_set, tls_clear;
5402 bfd_boolean is_local;
b7fcf6f6
AM
5403 bfd_signed_vma *got_count;
5404
5405 r_symndx = ELF32_R_SYM (rel->r_info);
5406 if (r_symndx >= symtab_hdr->sh_info)
5407 {
5408 struct elf_link_hash_entry **sym_hashes;
7fce784e 5409
b7fcf6f6
AM
5410 sym_hashes = elf_sym_hashes (ibfd);
5411 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5412 while (h->root.type == bfd_link_hash_indirect
5413 || h->root.type == bfd_link_hash_warning)
5414 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5415 }
7619e7c7 5416
b7fcf6f6
AM
5417 is_local = FALSE;
5418 if (h == NULL
5419 || !h->def_dynamic)
5420 is_local = TRUE;
7619e7c7 5421
b7fcf6f6 5422 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5423 /* If this section has old-style __tls_get_addr calls
5424 without marker relocs, then check that each
5425 __tls_get_addr call reloc is preceded by a reloc
5426 that conceivably belongs to the __tls_get_addr arg
5427 setup insn. If we don't find matching arg setup
5428 relocs, don't do any tls optimization. */
5429 if (pass == 0
5430 && sec->has_tls_get_addr_call
5431 && h != NULL
5432 && h == htab->tls_get_addr
5433 && !expecting_tls_get_addr
5434 && is_branch_reloc (r_type))
5435 {
25f53a85 5436 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5437 "TLS optimization disabled\n",
5438 ibfd, sec, rel->r_offset);
5439 if (elf_section_data (sec)->relocs != relstart)
5440 free (relstart);
5441 return TRUE;
5442 }
5443
5444 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5445 switch (r_type)
5446 {
5447 case R_PPC_GOT_TLSLD16:
5448 case R_PPC_GOT_TLSLD16_LO:
5449 expecting_tls_get_addr = 1;
1a0670f3 5450 /* Fall through. */
b7fcf6f6
AM
5451
5452 case R_PPC_GOT_TLSLD16_HI:
5453 case R_PPC_GOT_TLSLD16_HA:
5454 /* These relocs should never be against a symbol
5455 defined in a shared lib. Leave them alone if
5456 that turns out to be the case. */
5457 if (!is_local)
5458 continue;
5459
5460 /* LD -> LE */
5461 tls_set = 0;
5462 tls_clear = TLS_LD;
5463 break;
5464
5465 case R_PPC_GOT_TLSGD16:
5466 case R_PPC_GOT_TLSGD16_LO:
5467 expecting_tls_get_addr = 1;
1a0670f3 5468 /* Fall through. */
b7fcf6f6
AM
5469
5470 case R_PPC_GOT_TLSGD16_HI:
5471 case R_PPC_GOT_TLSGD16_HA:
5472 if (is_local)
5473 /* GD -> LE */
5474 tls_set = 0;
5475 else
5476 /* GD -> IE */
5477 tls_set = TLS_TLS | TLS_TPRELGD;
5478 tls_clear = TLS_GD;
5479 break;
5480
5481 case R_PPC_GOT_TPREL16:
5482 case R_PPC_GOT_TPREL16_LO:
5483 case R_PPC_GOT_TPREL16_HI:
5484 case R_PPC_GOT_TPREL16_HA:
5485 if (is_local)
5486 {
5487 /* IE -> LE */
5488 tls_set = 0;
5489 tls_clear = TLS_TPREL;
5490 break;
5491 }
5492 else
5493 continue;
5494
32af9f6e
AM
5495 case R_PPC_TLSGD:
5496 case R_PPC_TLSLD:
5497 expecting_tls_get_addr = 2;
5498 tls_set = 0;
5499 tls_clear = 0;
5500 break;
5501
b7fcf6f6 5502 default:
25dbc73a 5503 continue;
b7fcf6f6 5504 }
25dbc73a 5505
b7fcf6f6
AM
5506 if (pass == 0)
5507 {
727fc41e 5508 if (!expecting_tls_get_addr
32af9f6e
AM
5509 || (expecting_tls_get_addr == 1
5510 && !sec->has_tls_get_addr_call))
b7fcf6f6 5511 continue;
25dbc73a 5512
3a71aa26
AM
5513 if (rel + 1 < relend
5514 && branch_reloc_hash_match (ibfd, rel + 1,
5515 htab->tls_get_addr))
5516 continue;
25dbc73a 5517
b7fcf6f6
AM
5518 /* Uh oh, we didn't find the expected call. We
5519 could just mark this symbol to exclude it
5520 from tls optimization but it's safer to skip
663a1470 5521 the entire optimization. */
25f53a85 5522 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5523 "TLS optimization disabled\n"),
5524 ibfd, sec, rel->r_offset);
5525 if (elf_section_data (sec)->relocs != relstart)
5526 free (relstart);
5527 return TRUE;
b7fcf6f6 5528 }
25dbc73a 5529
32af9f6e
AM
5530 if (expecting_tls_get_addr)
5531 {
5532 struct plt_entry *ent;
5533 bfd_vma addend = 0;
5534
0e1862bb 5535 if (bfd_link_pic (info)
32af9f6e
AM
5536 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5537 addend = rel[1].r_addend;
5538 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5539 got2, addend);
5540 if (ent != NULL && ent->plt.refcount > 0)
5541 ent->plt.refcount -= 1;
5542
5543 if (expecting_tls_get_addr == 2)
5544 continue;
5545 }
5546
b7fcf6f6
AM
5547 if (h != NULL)
5548 {
5549 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5550 got_count = &h->got.refcount;
5551 }
5552 else
5553 {
b7fcf6f6 5554 bfd_signed_vma *lgot_refs;
e054468f 5555 struct plt_entry **local_plt;
b7fcf6f6 5556 char *lgot_masks;
25dbc73a 5557
b7fcf6f6
AM
5558 if (locsyms == NULL)
5559 {
5560 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5561 if (locsyms == NULL)
5562 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5563 symtab_hdr->sh_info,
5564 0, NULL, NULL, NULL);
5565 if (locsyms == NULL)
5566 {
5567 if (elf_section_data (sec)->relocs != relstart)
5568 free (relstart);
5569 return FALSE;
5570 }
5571 }
b7fcf6f6
AM
5572 lgot_refs = elf_local_got_refcounts (ibfd);
5573 if (lgot_refs == NULL)
5574 abort ();
e054468f
AM
5575 local_plt = (struct plt_entry **)
5576 (lgot_refs + symtab_hdr->sh_info);
5577 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5578 tls_mask = &lgot_masks[r_symndx];
5579 got_count = &lgot_refs[r_symndx];
5580 }
25dbc73a 5581
b7fcf6f6
AM
5582 if (tls_set == 0)
5583 {
5584 /* We managed to get rid of a got entry. */
5585 if (*got_count > 0)
5586 *got_count -= 1;
5587 }
25dbc73a 5588
b7fcf6f6
AM
5589 *tls_mask |= tls_set;
5590 *tls_mask &= ~tls_clear;
5591 }
25dbc73a 5592
b7fcf6f6
AM
5593 if (elf_section_data (sec)->relocs != relstart)
5594 free (relstart);
5595 }
5596
5597 if (locsyms != NULL
5598 && (symtab_hdr->contents != (unsigned char *) locsyms))
5599 {
5600 if (!info->keep_memory)
5601 free (locsyms);
5602 else
5603 symtab_hdr->contents = (unsigned char *) locsyms;
5604 }
5605 }
9a23f96e 5606 htab->do_tls_opt = 1;
25dbc73a
AM
5607 return TRUE;
5608}
5609\f
625af618
AM
5610/* Return true if we have dynamic relocs that apply to read-only sections. */
5611
5612static bfd_boolean
0caf6c82
L
5613readonly_dynrelocs (struct elf_link_hash_entry *h,
5614 struct bfd_link_info *info)
625af618 5615{
6061a67d 5616 struct elf_dyn_relocs *p;
625af618
AM
5617
5618 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5619 {
5620 asection *s = p->sec->output_section;
5621
5622 if (s != NULL
5623 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5624 == (SEC_READONLY | SEC_ALLOC)))
0caf6c82
L
5625 {
5626 if (info)
5627 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
5628 p->sec->owner, p->sec);
5629
5630 return TRUE;
5631 }
625af618
AM
5632 }
5633 return FALSE;
5634}
5635
25dbc73a
AM
5636/* Adjust a symbol defined by a dynamic object and referenced by a
5637 regular object. The current definition is in some section of the
5638 dynamic object, but we're not including those sections. We have to
5639 change the definition to something the rest of the link can
5640 understand. */
7fce784e 5641
25dbc73a
AM
5642static bfd_boolean
5643ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5644 struct elf_link_hash_entry *h)
5645{
5646 struct ppc_elf_link_hash_table *htab;
5647 asection *s;
7fce784e 5648
25dbc73a
AM
5649#ifdef DEBUG
5650 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5651 h->root.root.string);
5652#endif
252b5132 5653
25dbc73a
AM
5654 /* Make sure we know what is going on here. */
5655 htab = ppc_elf_hash_table (info);
5656 BFD_ASSERT (htab->elf.dynobj != NULL
5657 && (h->needs_plt
91e21fb7 5658 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5659 || h->u.weakdef != NULL
5660 || (h->def_dynamic
5661 && h->ref_regular
5662 && !h->def_regular)));
252b5132 5663
25dbc73a
AM
5664 /* Deal with function syms. */
5665 if (h->type == STT_FUNC
e054468f 5666 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5667 || h->needs_plt)
5668 {
5669 /* Clear procedure linkage table information for any symbol that
5670 won't need a .plt entry. */
a6aa5195
AM
5671 struct plt_entry *ent;
5672 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5673 if (ent->plt.refcount > 0)
5674 break;
5675 if (ent == NULL
e054468f
AM
5676 || (h->type != STT_GNU_IFUNC
5677 && (SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 5678 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))))
252b5132 5679 {
25dbc73a 5680 /* A PLT entry is not required/allowed when:
252b5132 5681
25dbc73a
AM
5682 1. We are not using ld.so; because then the PLT entry
5683 can't be set up, so we can't use one. In this case,
5684 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5685
25dbc73a
AM
5686 2. GC has rendered the entry unused.
5687
5688 3. We know for certain that a call to this symbol
5689 will go to this object, or will remain undefined. */
a6aa5195 5690 h->plt.plist = NULL;
25dbc73a 5691 h->needs_plt = 0;
d1eca1e4 5692 h->pointer_equality_needed = 0;
25dbc73a 5693 }
625af618
AM
5694 else
5695 {
d1eca1e4
AM
5696 /* Taking a function's address in a read/write section
5697 doesn't require us to define the function symbol in the
1009ef28 5698 executable on a plt call stub. A dynamic reloc can
f0158f44
AM
5699 be used instead, giving better runtime performance.
5700 (Calls via that function pointer don't need to bounce
5701 through the plt call stub.) Similarly, use a dynamic
5702 reloc for a weak reference when possible, allowing the
5703 resolution of the symbol to be set at load time rather
5704 than link time. */
5705 if ((h->pointer_equality_needed
5706 || (!h->ref_regular_nonweak && h->non_got_ref))
1009ef28
AM
5707 && !htab->is_vxworks
5708 && !ppc_elf_hash_entry (h)->has_sda_refs
0caf6c82 5709 && !readonly_dynrelocs (h, NULL))
d1eca1e4
AM
5710 {
5711 h->pointer_equality_needed = 0;
f0158f44
AM
5712 /* After adjust_dynamic_symbol, non_got_ref set in the
5713 non-pic case means that dyn_relocs for this symbol
5714 should be discarded. */
d1eca1e4
AM
5715 h->non_got_ref = 0;
5716 }
625af618 5717 }
d3e454b9 5718 h->protected_def = 0;
25dbc73a 5719 return TRUE;
252b5132 5720 }
25dbc73a 5721 else
a6aa5195 5722 h->plt.plist = NULL;
252b5132 5723
25dbc73a
AM
5724 /* If this is a weak symbol, and there is a real definition, the
5725 processor independent code will have arranged for us to see the
5726 real definition first, and we can just use the same value. */
5727 if (h->u.weakdef != NULL)
252b5132 5728 {
25dbc73a
AM
5729 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5730 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5731 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5732 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5733 if (ELIMINATE_COPY_RELOCS)
5734 h->non_got_ref = h->u.weakdef->non_got_ref;
5735 return TRUE;
5736 }
dc810e39 5737
25dbc73a
AM
5738 /* This is a reference to a symbol defined by a dynamic object which
5739 is not a function. */
252b5132 5740
25dbc73a
AM
5741 /* If we are creating a shared library, we must presume that the
5742 only references to the symbol are via the global offset table.
5743 For such cases we need not do anything here; the relocations will
5744 be handled correctly by relocate_section. */
0e1862bb 5745 if (bfd_link_pic (info))
d3e454b9
AM
5746 {
5747 h->protected_def = 0;
5748 return TRUE;
5749 }
252b5132 5750
25dbc73a
AM
5751 /* If there are no references to this symbol that do not use the
5752 GOT, we don't need to generate a copy reloc. */
5753 if (!h->non_got_ref)
d3e454b9
AM
5754 {
5755 h->protected_def = 0;
5756 return TRUE;
5757 }
5758
5759 /* Protected variables do not work with .dynbss. The copy in
5760 .dynbss won't be used by the shared library with the protected
5761 definition for the variable. Editing to PIC, or text relocations
5762 are preferable to an incorrect program. */
5763 if (h->protected_def)
5764 {
5765 if (ELIMINATE_COPY_RELOCS
5766 && ppc_elf_hash_entry (h)->has_addr16_ha
5767 && ppc_elf_hash_entry (h)->has_addr16_lo
5768 && htab->params->pic_fixup == 0
5769 && info->disable_target_specific_optimizations <= 1)
5770 htab->params->pic_fixup = 1;
5771 h->non_got_ref = 0;
5772 return TRUE;
5773 }
25dbc73a 5774
a127494f
AM
5775 /* If -z nocopyreloc was given, we won't generate them either. */
5776 if (info->nocopyreloc)
5777 {
5778 h->non_got_ref = 0;
5779 return TRUE;
5780 }
5781
cfd2c773
NS
5782 /* If we didn't find any dynamic relocs in read-only sections, then
5783 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5784 We can't do this if there are any small data relocations. This
5785 doesn't work on VxWorks, where we can not have dynamic
5786 relocations (other than copy and jump slot relocations) in an
5787 executable. */
4dc4a9a5 5788 if (ELIMINATE_COPY_RELOCS
cfd2c773 5789 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5790 && !htab->is_vxworks
5791 && !h->def_regular
0caf6c82 5792 && !readonly_dynrelocs (h, NULL))
25dbc73a 5793 {
625af618
AM
5794 h->non_got_ref = 0;
5795 return TRUE;
252b5132
RH
5796 }
5797
25dbc73a
AM
5798 /* We must allocate the symbol in our .dynbss section, which will
5799 become part of the .bss section of the executable. There will be
5800 an entry for this symbol in the .dynsym section. The dynamic
5801 object will contain position independent code, so all references
5802 from the dynamic object to this symbol will go through the global
5803 offset table. The dynamic linker will use the .dynsym entry to
5804 determine the address it must put in the global offset table, so
5805 both the dynamic object and the regular object will refer to the
5806 same memory location for the variable.
5807
4dc4a9a5
DJ
5808 Of course, if the symbol is referenced using SDAREL relocs, we
5809 must instead allocate it in .sbss. */
25dbc73a 5810
4dc4a9a5 5811 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5812 s = htab->dynsbss;
5474d94f
AM
5813 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5814 s = htab->elf.sdynrelro;
25dbc73a 5815 else
9d19e4fd 5816 s = htab->elf.sdynbss;
25dbc73a
AM
5817 BFD_ASSERT (s != NULL);
5818
5819 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5820 copy the initial value out of the dynamic object and into the
5821 runtime process image. We need to remember the offset into the
5822 .rela.bss section we are going to use. */
1d7e9d18 5823 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5824 {
5825 asection *srel;
5826
4dc4a9a5 5827 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5828 srel = htab->relsbss;
5474d94f
AM
5829 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5830 srel = htab->elf.sreldynrelro;
25dbc73a 5831 else
9d19e4fd 5832 srel = htab->elf.srelbss;
25dbc73a
AM
5833 BFD_ASSERT (srel != NULL);
5834 srel->size += sizeof (Elf32_External_Rela);
5835 h->needs_copy = 1;
5836 }
7619e7c7 5837
6cabe1ea 5838 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5839}
5840\f
ac39eb42
AM
5841/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5842 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5843 specifying the addend on the plt relocation. For -fpic code, the sym
5844 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5845 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5846
5847static bfd_boolean
5848add_stub_sym (struct plt_entry *ent,
5849 struct elf_link_hash_entry *h,
ac39eb42 5850 struct bfd_link_info *info)
0ba07910
AM
5851{
5852 struct elf_link_hash_entry *sh;
5853 size_t len1, len2, len3;
5854 char *name;
ac39eb42
AM
5855 const char *stub;
5856 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5857
0e1862bb 5858 if (bfd_link_pic (info))
ac39eb42
AM
5859 stub = ".plt_pic32.";
5860 else
5861 stub = ".plt_call32.";
0ba07910
AM
5862
5863 len1 = strlen (h->root.root.string);
ac39eb42 5864 len2 = strlen (stub);
0ba07910
AM
5865 len3 = 0;
5866 if (ent->sec)
5867 len3 = strlen (ent->sec->name);
ac39eb42 5868 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5869 if (name == NULL)
5870 return FALSE;
5871 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5872 if (ent->sec)
5873 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5874 memcpy (name + 8 + len3, stub, len2);
5875 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5876 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5877 if (sh == NULL)
5878 return FALSE;
5879 if (sh->root.type == bfd_link_hash_new)
5880 {
5881 sh->root.type = bfd_link_hash_defined;
5882 sh->root.u.def.section = htab->glink;
5883 sh->root.u.def.value = ent->glink_offset;
5884 sh->ref_regular = 1;
5885 sh->def_regular = 1;
5886 sh->ref_regular_nonweak = 1;
5887 sh->forced_local = 1;
5888 sh->non_elf = 0;
2ec55de3 5889 sh->root.linker_def = 1;
0ba07910
AM
5890 }
5891 return TRUE;
5892}
5893
3b36f7e6
AM
5894/* Allocate NEED contiguous space in .got, and return the offset.
5895 Handles allocation of the got header when crossing 32k. */
5896
5897static bfd_vma
5898allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5899{
5900 bfd_vma where;
4a3dc543 5901 unsigned int max_before_header;
3b36f7e6 5902
4a3dc543 5903 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5904 {
ce558b89
AM
5905 where = htab->elf.sgot->size;
5906 htab->elf.sgot->size += need;
9d8504b1 5907 }
3b36f7e6
AM
5908 else
5909 {
4a3dc543
RS
5910 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5911 if (need <= htab->got_gap)
3b36f7e6 5912 {
4a3dc543
RS
5913 where = max_before_header - htab->got_gap;
5914 htab->got_gap -= need;
5915 }
5916 else
5917 {
ce558b89
AM
5918 if (htab->elf.sgot->size + need > max_before_header
5919 && htab->elf.sgot->size <= max_before_header)
4a3dc543 5920 {
ce558b89
AM
5921 htab->got_gap = max_before_header - htab->elf.sgot->size;
5922 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 5923 }
ce558b89
AM
5924 where = htab->elf.sgot->size;
5925 htab->elf.sgot->size += need;
3b36f7e6 5926 }
3b36f7e6
AM
5927 }
5928 return where;
5929}
5930
46434633 5931/* If H is undefined, make it dynamic if that makes sense. */
f0158f44
AM
5932
5933static bfd_boolean
46434633
AM
5934ensure_undef_dynamic (struct bfd_link_info *info,
5935 struct elf_link_hash_entry *h)
f0158f44
AM
5936{
5937 struct elf_link_hash_table *htab = elf_hash_table (info);
5938
5939 if (htab->dynamic_sections_created
46434633
AM
5940 && ((info->dynamic_undefined_weak != 0
5941 && h->root.type == bfd_link_hash_undefweak)
5942 || h->root.type == bfd_link_hash_undefined)
f0158f44
AM
5943 && h->dynindx == -1
5944 && !h->forced_local
5945 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
5946 return bfd_elf_link_record_dynamic_symbol (info, h);
5947 return TRUE;
5948}
5949
25dbc73a 5950/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5951
b34976b6 5952static bfd_boolean
25dbc73a 5953allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5954{
25dbc73a
AM
5955 struct bfd_link_info *info = inf;
5956 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5957 struct ppc_elf_link_hash_table *htab;
6061a67d 5958 struct elf_dyn_relocs *p;
f0158f44 5959 bfd_boolean dyn;
252b5132 5960
25dbc73a 5961 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5962 return TRUE;
252b5132 5963
7619e7c7 5964 htab = ppc_elf_hash_table (info);
25dbc73a 5965 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
5966 if (eh->elf.got.refcount > 0
5967 || (ELIMINATE_COPY_RELOCS
5968 && !eh->elf.def_regular
5969 && eh->elf.protected_def
5970 && eh->has_addr16_ha
5971 && eh->has_addr16_lo
5972 && htab->params->pic_fixup > 0))
25dbc73a 5973 {
d6e14abc
AM
5974 unsigned int need;
5975
46434633
AM
5976 /* Make sure this symbol is output as a dynamic symbol. */
5977 if (!ensure_undef_dynamic (info, &eh->elf))
f0158f44 5978 return FALSE;
252b5132 5979
d6e14abc
AM
5980 need = 0;
5981 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5982 {
d6e14abc 5983 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5984 {
d6e14abc
AM
5985 if (!eh->elf.def_dynamic)
5986 /* We'll just use htab->tlsld_got.offset. This should
5987 always be the case. It's a little odd if we have
5988 a local dynamic reloc against a non-local symbol. */
5989 htab->tlsld_got.refcount += 1;
5990 else
3b36f7e6 5991 need += 8;
252b5132 5992 }
d6e14abc
AM
5993 if ((eh->tls_mask & TLS_GD) != 0)
5994 need += 8;
5995 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5996 need += 4;
5997 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5998 need += 4;
d6e14abc
AM
5999 }
6000 else
6001 need += 4;
6002 if (need == 0)
6003 eh->elf.got.offset = (bfd_vma) -1;
6004 else
6005 {
3b36f7e6 6006 eh->elf.got.offset = allocate_got (htab, need);
0e1862bb 6007 if ((bfd_link_pic (info)
f0158f44
AM
6008 || (htab->elf.dynamic_sections_created
6009 && eh->elf.dynindx != -1
6010 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
21d68fcd 6011 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
252b5132 6012 {
ce558b89 6013 asection *rsec = htab->elf.srelgot;
0bed072f
AM
6014
6015 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6016 rsec = htab->elf.irelplt;
3b36f7e6
AM
6017 /* All the entries we allocated need relocs.
6018 Except LD only needs one. */
d6e14abc
AM
6019 if ((eh->tls_mask & TLS_LD) != 0
6020 && eh->elf.def_dynamic)
3b36f7e6 6021 need -= 4;
25f23106 6022 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 6023 }
25dbc73a
AM
6024 }
6025 }
6026 else
6027 eh->elf.got.offset = (bfd_vma) -1;
252b5132 6028
954b63d4
AM
6029 /* If no dynamic sections we can't have dynamic relocs, except for
6030 IFUNCs which are handled even in static executables. */
f0158f44
AM
6031 if (!htab->elf.dynamic_sections_created
6032 && h->type != STT_GNU_IFUNC)
6033 eh->dyn_relocs = NULL;
6034
6035 if (eh->dyn_relocs == NULL)
6036 ;
252b5132 6037
25dbc73a
AM
6038 /* In the shared -Bsymbolic case, discard space allocated for
6039 dynamic pc-relative relocs against symbols which turn out to be
6040 defined in regular objects. For the normal shared case, discard
6041 space for relocs that have become local due to symbol visibility
6042 changes. */
f0158f44 6043 else if (bfd_link_pic (info))
25dbc73a 6044 {
954b63d4
AM
6045 /* Discard relocs on undefined symbols that must be local. */
6046 if (h->root.type == bfd_link_hash_undefined
6047 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
6048 eh->dyn_relocs = NULL;
6049
6050 /* Also discard relocs on undefined weak syms with non-default
6051 visibility, or when dynamic_undefined_weak says so. */
21d68fcd 6052 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
954b63d4
AM
6053 eh->dyn_relocs = NULL;
6054
25dbc73a 6055 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 6056 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
6057 generated via assembly. We want calls to protected symbols to
6058 resolve directly to the function rather than going via the plt.
6059 If people want function pointer comparisons to work as expected
6060 then they should avoid writing weird assembly. */
954b63d4 6061 else if (SYMBOL_CALLS_LOCAL (info, h))
25dbc73a 6062 {
6061a67d 6063 struct elf_dyn_relocs **pp;
25dbc73a
AM
6064
6065 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 6066 {
25dbc73a
AM
6067 p->count -= p->pc_count;
6068 p->pc_count = 0;
6069 if (p->count == 0)
6070 *pp = p->next;
6071 else
6072 pp = &p->next;
252b5132 6073 }
25dbc73a 6074 }
252b5132 6075
3348747a
NS
6076 if (htab->is_vxworks)
6077 {
6061a67d 6078 struct elf_dyn_relocs **pp;
3348747a
NS
6079
6080 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
6081 {
6082 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
6083 *pp = p->next;
6084 else
6085 pp = &p->next;
6086 }
6087 }
6088
954b63d4 6089 if (eh->dyn_relocs != NULL)
25dbc73a 6090 {
46434633
AM
6091 /* Make sure this symbol is output as a dynamic symbol. */
6092 if (!ensure_undef_dynamic (info, h))
f0158f44 6093 return FALSE;
25dbc73a
AM
6094 }
6095 }
6096 else if (ELIMINATE_COPY_RELOCS)
6097 {
f0158f44 6098 /* For the non-pic case, discard space for relocs against
25dbc73a
AM
6099 symbols which turn out to need copy relocs or are not
6100 dynamic. */
25dbc73a 6101 if (!h->non_got_ref
d3e454b9
AM
6102 && !h->def_regular
6103 && !(h->protected_def
6104 && eh->has_addr16_ha
6105 && eh->has_addr16_lo
6106 && htab->params->pic_fixup > 0))
25dbc73a 6107 {
46434633
AM
6108 /* Make sure this symbol is output as a dynamic symbol. */
6109 if (!ensure_undef_dynamic (info, h))
f0158f44 6110 return FALSE;
7619e7c7 6111
f0158f44
AM
6112 if (h->dynindx == -1)
6113 eh->dyn_relocs = NULL;
25dbc73a 6114 }
f0158f44
AM
6115 else
6116 eh->dyn_relocs = NULL;
25dbc73a 6117 }
252b5132 6118
f0158f44 6119 /* Allocate space. */
25dbc73a
AM
6120 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6121 {
6122 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6123 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 6124 sreloc = htab->elf.irelplt;
25dbc73a
AM
6125 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6126 }
252b5132 6127
f0158f44
AM
6128 /* Handle PLT relocs. Done last, after dynindx has settled. */
6129 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
6130 if (dyn || h->type == STT_GNU_IFUNC)
6131 {
6132 struct plt_entry *ent;
6133 bfd_boolean doneone = FALSE;
6134 bfd_vma plt_offset = 0, glink_offset = 0;
6135
6136 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6137 if (ent->plt.refcount > 0)
6138 {
6139 asection *s = htab->elf.splt;
6140
6141 if (!dyn)
6142 s = htab->elf.iplt;
6143
6144 if (htab->plt_type == PLT_NEW || !dyn)
6145 {
6146 if (!doneone)
6147 {
6148 plt_offset = s->size;
6149 s->size += 4;
6150 }
6151 ent->plt.offset = plt_offset;
6152
6153 s = htab->glink;
6154 if (!doneone || bfd_link_pic (info))
6155 {
6156 glink_offset = s->size;
6157 s->size += GLINK_ENTRY_SIZE;
6158 if (h == htab->tls_get_addr
6159 && !htab->params->no_tls_get_addr_opt)
6160 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
6161 }
6162 if (!doneone
6163 && !bfd_link_pic (info)
6164 && h->def_dynamic
6165 && !h->def_regular)
6166 {
6167 h->root.u.def.section = s;
6168 h->root.u.def.value = glink_offset;
6169 }
6170 ent->glink_offset = glink_offset;
6171
6172 if (htab->params->emit_stub_syms
6173 && !add_stub_sym (ent, h, info))
6174 return FALSE;
6175 }
6176 else
6177 {
6178 if (!doneone)
6179 {
6180 /* If this is the first .plt entry, make room
6181 for the special first entry. */
6182 if (s->size == 0)
6183 s->size += htab->plt_initial_entry_size;
6184
6185 /* The PowerPC PLT is actually composed of two
6186 parts, the first part is 2 words (for a load
6187 and a jump), and then there is a remaining
6188 word available at the end. */
6189 plt_offset = (htab->plt_initial_entry_size
6190 + (htab->plt_slot_size
6191 * ((s->size
6192 - htab->plt_initial_entry_size)
6193 / htab->plt_entry_size)));
6194
6195 /* If this symbol is not defined in a regular
6196 file, and we are not generating a shared
6197 library, then set the symbol to this location
6198 in the .plt. This is to avoid text
6199 relocations, and is required to make
6200 function pointers compare as equal between
6201 the normal executable and the shared library. */
6202 if (! bfd_link_pic (info)
6203 && h->def_dynamic
6204 && !h->def_regular)
6205 {
6206 h->root.u.def.section = s;
6207 h->root.u.def.value = plt_offset;
6208 }
6209
6210 /* Make room for this entry. */
6211 s->size += htab->plt_entry_size;
6212 /* After the 8192nd entry, room for two entries
6213 is allocated. */
6214 if (htab->plt_type == PLT_OLD
6215 && (s->size - htab->plt_initial_entry_size)
6216 / htab->plt_entry_size
6217 > PLT_NUM_SINGLE_ENTRIES)
6218 s->size += htab->plt_entry_size;
6219 }
6220 ent->plt.offset = plt_offset;
6221 }
6222
6223 /* We also need to make an entry in the .rela.plt section. */
6224 if (!doneone)
6225 {
6226 if (!dyn)
6227 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
6228 else
6229 {
6230 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6231
6232 if (htab->plt_type == PLT_VXWORKS)
6233 {
6234 /* Allocate space for the unloaded relocations. */
6235 if (!bfd_link_pic (info)
6236 && htab->elf.dynamic_sections_created)
6237 {
6238 if (ent->plt.offset
6239 == (bfd_vma) htab->plt_initial_entry_size)
6240 {
6241 htab->srelplt2->size
6242 += (sizeof (Elf32_External_Rela)
6243 * VXWORKS_PLTRESOLVE_RELOCS);
6244 }
6245
6246 htab->srelplt2->size
6247 += (sizeof (Elf32_External_Rela)
6248 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6249 }
6250
6251 /* Every PLT entry has an associated GOT entry in
6252 .got.plt. */
6253 htab->elf.sgotplt->size += 4;
6254 }
6255 }
6256 doneone = TRUE;
6257 }
6258 }
6259 else
6260 ent->plt.offset = (bfd_vma) -1;
6261
6262 if (!doneone)
6263 {
6264 h->plt.plist = NULL;
6265 h->needs_plt = 0;
6266 }
6267 }
6268 else
6269 {
6270 h->plt.plist = NULL;
6271 h->needs_plt = 0;
6272 }
6273
25dbc73a
AM
6274 return TRUE;
6275}
7619e7c7 6276
625af618
AM
6277/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6278 read-only sections. */
7619e7c7 6279
25dbc73a 6280static bfd_boolean
0caf6c82 6281maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
25dbc73a 6282{
0caf6c82
L
6283 struct bfd_link_info *info;
6284
25dbc73a
AM
6285 if (h->root.type == bfd_link_hash_indirect)
6286 return TRUE;
252b5132 6287
0caf6c82
L
6288 info = (struct bfd_link_info *) info_p;
6289 if (readonly_dynrelocs (h, info))
25dbc73a 6290 {
0caf6c82 6291 info->flags |= DF_TEXTREL;
ee05f2fe 6292
625af618
AM
6293 /* Not an error, just cut short the traversal. */
6294 return FALSE;
25dbc73a
AM
6295 }
6296 return TRUE;
6297}
6298
6177242a
AM
6299static const unsigned char glink_eh_frame_cie[] =
6300{
6301 0, 0, 0, 16, /* length. */
6302 0, 0, 0, 0, /* id. */
6303 1, /* CIE version. */
6304 'z', 'R', 0, /* Augmentation string. */
6305 4, /* Code alignment. */
6306 0x7c, /* Data alignment. */
6307 65, /* RA reg. */
6308 1, /* Augmentation size. */
6309 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6310 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6311};
6312
25dbc73a
AM
6313/* Set the sizes of the dynamic sections. */
6314
6315static bfd_boolean
93d1b056 6316ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6317 struct bfd_link_info *info)
6318{
6319 struct ppc_elf_link_hash_table *htab;
6320 asection *s;
6321 bfd_boolean relocs;
6322 bfd *ibfd;
7fce784e 6323
252b5132 6324#ifdef DEBUG
25dbc73a 6325 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6326#endif
252b5132 6327
25dbc73a
AM
6328 htab = ppc_elf_hash_table (info);
6329 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6330
25dbc73a
AM
6331 if (elf_hash_table (info)->dynamic_sections_created)
6332 {
6333 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6334 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6335 {
3d4d4302 6336 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6337 BFD_ASSERT (s != NULL);
6338 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6339 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6340 }
6341 }
252b5132 6342
4a3dc543 6343 if (htab->plt_type == PLT_OLD)
d7128ce4 6344 htab->got_header_size = 16;
4a3dc543 6345 else if (htab->plt_type == PLT_NEW)
d7128ce4 6346 htab->got_header_size = 12;
252b5132 6347
25dbc73a
AM
6348 /* Set up .got offsets for local syms, and space for local dynamic
6349 relocs. */
c72f2fb2 6350 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6351 {
6352 bfd_signed_vma *local_got;
6353 bfd_signed_vma *end_local_got;
e054468f
AM
6354 struct plt_entry **local_plt;
6355 struct plt_entry **end_local_plt;
25dbc73a
AM
6356 char *lgot_masks;
6357 bfd_size_type locsymcount;
6358 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6359
0c8d6e5c 6360 if (!is_ppc_elf (ibfd))
25dbc73a 6361 continue;
7fce784e 6362
25dbc73a
AM
6363 for (s = ibfd->sections; s != NULL; s = s->next)
6364 {
f95f8542 6365 struct ppc_dyn_relocs *p;
252b5132 6366
f95f8542 6367 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6368 elf_section_data (s)->local_dynrel);
6369 p != NULL;
6370 p = p->next)
6371 {
6372 if (!bfd_is_abs_section (p->sec)
6373 && bfd_is_abs_section (p->sec->output_section))
6374 {
6375 /* Input section has been discarded, either because
6376 it is a copy of a linkonce section or due to
6377 linker script /DISCARD/, so we'll be discarding
6378 the relocs too. */
7fce784e 6379 }
3348747a
NS
6380 else if (htab->is_vxworks
6381 && strcmp (p->sec->output_section->name,
6382 ".tls_vars") == 0)
6383 {
6384 /* Relocations in vxworks .tls_vars sections are
6385 handled specially by the loader. */
6386 }
25dbc73a 6387 else if (p->count != 0)
7fce784e 6388 {
25f23106 6389 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6390 if (p->ifunc)
ce558b89 6391 sreloc = htab->elf.irelplt;
25f23106 6392 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6393 if ((p->sec->output_section->flags
6394 & (SEC_READONLY | SEC_ALLOC))
6395 == (SEC_READONLY | SEC_ALLOC))
0caf6c82
L
6396 {
6397 info->flags |= DF_TEXTREL;
6398 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
6399 p->sec->owner, p->sec);
6400 }
7fce784e 6401 }
252b5132 6402 }
252b5132 6403 }
252b5132 6404
25dbc73a
AM
6405 local_got = elf_local_got_refcounts (ibfd);
6406 if (!local_got)
6407 continue;
252b5132 6408
0ffa91dd 6409 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6410 locsymcount = symtab_hdr->sh_info;
6411 end_local_got = local_got + locsymcount;
e054468f
AM
6412 local_plt = (struct plt_entry **) end_local_got;
6413 end_local_plt = local_plt + locsymcount;
6414 lgot_masks = (char *) end_local_plt;
91d6fa6a 6415
25dbc73a
AM
6416 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6417 if (*local_got > 0)
6418 {
d6e14abc
AM
6419 unsigned int need = 0;
6420 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6421 {
d6e14abc
AM
6422 if ((*lgot_masks & TLS_GD) != 0)
6423 need += 8;
6424 if ((*lgot_masks & TLS_LD) != 0)
6425 htab->tlsld_got.refcount += 1;
6426 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6427 need += 4;
6428 if ((*lgot_masks & TLS_DTPREL) != 0)
6429 need += 4;
25dbc73a 6430 }
d6e14abc
AM
6431 else
6432 need += 4;
6433 if (need == 0)
6434 *local_got = (bfd_vma) -1;
25dbc73a
AM
6435 else
6436 {
3b36f7e6 6437 *local_got = allocate_got (htab, need);
0e1862bb 6438 if (bfd_link_pic (info))
0bed072f 6439 {
ce558b89 6440 asection *srel = htab->elf.srelgot;
0bed072f 6441 if ((*lgot_masks & PLT_IFUNC) != 0)
ce558b89 6442 srel = htab->elf.irelplt;
0bed072f
AM
6443 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6444 }
25dbc73a
AM
6445 }
6446 }
6447 else
6448 *local_got = (bfd_vma) -1;
e054468f
AM
6449
6450 if (htab->is_vxworks)
6451 continue;
6452
6453 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6454 for (; local_plt < end_local_plt; ++local_plt)
6455 {
6456 struct plt_entry *ent;
6457 bfd_boolean doneone = FALSE;
6458 bfd_vma plt_offset = 0, glink_offset = 0;
6459
6460 for (ent = *local_plt; ent != NULL; ent = ent->next)
6461 if (ent->plt.refcount > 0)
6462 {
ce558b89 6463 s = htab->elf.iplt;
e054468f
AM
6464
6465 if (!doneone)
6466 {
6467 plt_offset = s->size;
6468 s->size += 4;
6469 }
6470 ent->plt.offset = plt_offset;
6471
6472 s = htab->glink;
0e1862bb 6473 if (!doneone || bfd_link_pic (info))
e054468f
AM
6474 {
6475 glink_offset = s->size;
6476 s->size += GLINK_ENTRY_SIZE;
6477 }
6478 ent->glink_offset = glink_offset;
6479
6480 if (!doneone)
6481 {
ce558b89 6482 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6483 doneone = TRUE;
6484 }
6485 }
6486 else
6487 ent->plt.offset = (bfd_vma) -1;
6488 }
25dbc73a 6489 }
252b5132 6490
b7fcf6f6
AM
6491 /* Allocate space for global sym dynamic relocs. */
6492 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6493
3b36f7e6
AM
6494 if (htab->tlsld_got.refcount > 0)
6495 {
6496 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6497 if (bfd_link_pic (info))
ce558b89 6498 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6499 }
6500 else
6501 htab->tlsld_got.offset = (bfd_vma) -1;
6502
ce558b89 6503 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6504 {
6505 unsigned int g_o_t = 32768;
6506
4d962050
AM
6507 /* If we haven't allocated the header, do so now. When we get here,
6508 for old plt/got the got size will be 0 to 32764 (not allocated),
6509 or 32780 to 65536 (header allocated). For new plt/got, the
6510 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6511 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6512 {
ce558b89 6513 g_o_t = htab->elf.sgot->size;
4a3dc543 6514 if (htab->plt_type == PLT_OLD)
4d962050 6515 g_o_t += 4;
ce558b89 6516 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6517 }
3b36f7e6
AM
6518
6519 htab->elf.hgot->root.u.def.value = g_o_t;
6520 }
0e1862bb 6521 if (bfd_link_pic (info))
bd6c6e2b
AM
6522 {
6523 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6524
6525 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6526 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6527 }
15bfcc77
AM
6528 if (info->emitrelocations)
6529 {
6530 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6531
6532 if (sda != NULL && sda->ref_regular)
6533 sda->root.u.def.section->flags |= SEC_KEEP;
6534 sda = htab->sdata[1].sym;
6535 if (sda != NULL && sda->ref_regular)
6536 sda->root.u.def.section->flags |= SEC_KEEP;
6537 }
3b36f7e6 6538
e054468f
AM
6539 if (htab->glink != NULL
6540 && htab->glink->size != 0
6541 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6542 {
6543 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6544 /* Space for the branch table. ??? We don't need entries for
6545 non-dynamic symbols in this table. This case can arise with
6546 static ifuncs or forced local ifuncs. */
86b9da88
AM
6547 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6548 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6549 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6550 ? 63 : 15);
d7128ce4 6551 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6552
5446cbdf 6553 if (htab->params->emit_stub_syms)
0ba07910
AM
6554 {
6555 struct elf_link_hash_entry *sh;
6556 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6557 TRUE, FALSE, FALSE);
6558 if (sh == NULL)
6559 return FALSE;
6560 if (sh->root.type == bfd_link_hash_new)
6561 {
6562 sh->root.type = bfd_link_hash_defined;
6563 sh->root.u.def.section = htab->glink;
6564 sh->root.u.def.value = htab->glink_pltresolve;
6565 sh->ref_regular = 1;
6566 sh->def_regular = 1;
6567 sh->ref_regular_nonweak = 1;
6568 sh->forced_local = 1;
6569 sh->non_elf = 0;
2ec55de3 6570 sh->root.linker_def = 1;
0ba07910
AM
6571 }
6572 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6573 TRUE, FALSE, FALSE);
6574 if (sh == NULL)
6575 return FALSE;
6576 if (sh->root.type == bfd_link_hash_new)
6577 {
6578 sh->root.type = bfd_link_hash_defined;
6579 sh->root.u.def.section = htab->glink;
6580 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6581 sh->ref_regular = 1;
6582 sh->def_regular = 1;
6583 sh->ref_regular_nonweak = 1;
6584 sh->forced_local = 1;
6585 sh->non_elf = 0;
2ec55de3 6586 sh->root.linker_def = 1;
0ba07910
AM
6587 }
6588 }
d7128ce4
AM
6589 }
6590
6177242a
AM
6591 if (htab->glink != NULL
6592 && htab->glink->size != 0
6593 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6594 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6595 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6596 {
6597 s = htab->glink_eh_frame;
6598 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6599 if (bfd_link_pic (info))
6177242a
AM
6600 {
6601 s->size += 4;
6602 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6603 s->size += 4;
6604 }
6605 }
6606
25dbc73a
AM
6607 /* We've now determined the sizes of the various dynamic sections.
6608 Allocate memory for them. */
6609 relocs = FALSE;
6610 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6611 {
9d8504b1
PB
6612 bfd_boolean strip_section = TRUE;
6613
25dbc73a
AM
6614 if ((s->flags & SEC_LINKER_CREATED) == 0)
6615 continue;
252b5132 6616
ce558b89
AM
6617 if (s == htab->elf.splt
6618 || s == htab->elf.sgot)
25dbc73a 6619 {
9d8504b1
PB
6620 /* We'd like to strip these sections if they aren't needed, but if
6621 we've exported dynamic symbols from them we must leave them.
6622 It's too late to tell BFD to get rid of the symbols. */
e054468f 6623 if (htab->elf.hplt != NULL)
9d8504b1 6624 strip_section = FALSE;
25dbc73a
AM
6625 /* Strip this section if we don't need it; see the
6626 comment below. */
6627 }
ce558b89 6628 else if (s == htab->elf.iplt
e054468f 6629 || s == htab->glink
6177242a 6630 || s == htab->glink_eh_frame
ce558b89 6631 || s == htab->elf.sgotplt
e054468f 6632 || s == htab->sbss
9d19e4fd 6633 || s == htab->elf.sdynbss
5474d94f 6634 || s == htab->elf.sdynrelro
15bfcc77 6635 || s == htab->dynsbss)
25dbc73a 6636 {
c9a2f333 6637 /* Strip these too. */
25dbc73a 6638 }
15bfcc77
AM
6639 else if (s == htab->sdata[0].section
6640 || s == htab->sdata[1].section)
6641 {
6642 strip_section = (s->flags & SEC_KEEP) == 0;
6643 }
a0f49396
NC
6644 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6645 ".rela"))
25dbc73a 6646 {
c456f082 6647 if (s->size != 0)
25dbc73a
AM
6648 {
6649 /* Remember whether there are any relocation sections. */
6650 relocs = TRUE;
252b5132 6651
25dbc73a
AM
6652 /* We use the reloc_count field as a counter if we need
6653 to copy relocs into the output file. */
6654 s->reloc_count = 0;
252b5132
RH
6655 }
6656 }
25dbc73a
AM
6657 else
6658 {
6659 /* It's not one of our sections, so don't allocate space. */
6660 continue;
6661 }
252b5132 6662
9d8504b1 6663 if (s->size == 0 && strip_section)
25dbc73a 6664 {
c456f082
AM
6665 /* If we don't need this section, strip it from the
6666 output file. This is mostly to handle .rela.bss and
6667 .rela.plt. We must create both sections in
6668 create_dynamic_sections, because they must be created
6669 before the linker maps input sections to output
6670 sections. The linker does that before
6671 adjust_dynamic_symbol is called, and it is that
6672 function which decides whether anything needs to go
6673 into these sections. */
8423293d 6674 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6675 continue;
6676 }
7fce784e 6677
d7128ce4 6678 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6679 continue;
6680
25dbc73a
AM
6681 /* Allocate memory for the section contents. */
6682 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6683 if (s->contents == NULL)
6684 return FALSE;
6685 }
252b5132 6686
25dbc73a 6687 if (htab->elf.dynamic_sections_created)
7619e7c7 6688 {
25dbc73a
AM
6689 /* Add some entries to the .dynamic section. We fill in the
6690 values later, in ppc_elf_finish_dynamic_sections, but we
6691 must add the entries now so that we get the correct size for
6692 the .dynamic section. The DT_DEBUG entry is filled in by the
6693 dynamic linker and used by the debugger. */
6694#define add_dynamic_entry(TAG, VAL) \
6695 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6696
0e1862bb 6697 if (bfd_link_executable (info))
7619e7c7 6698 {
25dbc73a
AM
6699 if (!add_dynamic_entry (DT_DEBUG, 0))
6700 return FALSE;
7619e7c7
AM
6701 }
6702
ce558b89 6703 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 6704 {
25dbc73a
AM
6705 if (!add_dynamic_entry (DT_PLTGOT, 0)
6706 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6707 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6708 || !add_dynamic_entry (DT_JMPREL, 0))
6709 return FALSE;
6710 }
7619e7c7 6711
c7e17e05
AM
6712 if (htab->plt_type == PLT_NEW
6713 && htab->glink != NULL
6714 && htab->glink->size != 0)
d7128ce4 6715 {
1fe44d79 6716 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6717 return FALSE;
5446cbdf 6718 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6719 && htab->tls_get_addr != NULL
6720 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6721 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6722 return FALSE;
d7128ce4
AM
6723 }
6724
25dbc73a
AM
6725 if (relocs)
6726 {
6727 if (!add_dynamic_entry (DT_RELA, 0)
6728 || !add_dynamic_entry (DT_RELASZ, 0)
6729 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6730 return FALSE;
6731 }
7619e7c7 6732
25dbc73a
AM
6733 /* If any dynamic relocs apply to a read-only section, then we
6734 need a DT_TEXTREL entry. */
6735 if ((info->flags & DF_TEXTREL) == 0)
625af618 6736 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6737 info);
7619e7c7 6738
25dbc73a
AM
6739 if ((info->flags & DF_TEXTREL) != 0)
6740 {
6741 if (!add_dynamic_entry (DT_TEXTREL, 0))
6742 return FALSE;
7619e7c7 6743 }
7a2b07ff
NS
6744 if (htab->is_vxworks
6745 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6746 return FALSE;
6747 }
25dbc73a
AM
6748#undef add_dynamic_entry
6749
7e01508c
AM
6750 if (htab->glink_eh_frame != NULL
6751 && htab->glink_eh_frame->contents != NULL)
6752 {
6753 unsigned char *p = htab->glink_eh_frame->contents;
6754 bfd_vma val;
6755
6756 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6757 /* CIE length (rewrite in case little-endian). */
6758 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6759 p += sizeof (glink_eh_frame_cie);
6760 /* FDE length. */
6761 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6762 bfd_put_32 (htab->elf.dynobj, val, p);
6763 p += 4;
6764 /* CIE pointer. */
6765 val = p - htab->glink_eh_frame->contents;
6766 bfd_put_32 (htab->elf.dynobj, val, p);
6767 p += 4;
6768 /* Offset to .glink. Set later. */
6769 p += 4;
6770 /* .glink size. */
6771 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6772 p += 4;
6773 /* Augmentation. */
6774 p += 1;
6775
0e1862bb 6776 if (bfd_link_pic (info)
7e01508c
AM
6777 && htab->elf.dynamic_sections_created)
6778 {
6779 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6780 if (adv < 64)
6781 *p++ = DW_CFA_advance_loc + adv;
6782 else if (adv < 256)
6783 {
6784 *p++ = DW_CFA_advance_loc1;
6785 *p++ = adv;
6786 }
6787 else if (adv < 65536)
6788 {
6789 *p++ = DW_CFA_advance_loc2;
6790 bfd_put_16 (htab->elf.dynobj, adv, p);
6791 p += 2;
6792 }
6793 else
6794 {
6795 *p++ = DW_CFA_advance_loc4;
6796 bfd_put_32 (htab->elf.dynobj, adv, p);
6797 p += 4;
6798 }
6799 *p++ = DW_CFA_register;
6800 *p++ = 65;
6801 p++;
6802 *p++ = DW_CFA_advance_loc + 4;
6803 *p++ = DW_CFA_restore_extended;
6804 *p++ = 65;
6805 }
6806 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6807 == htab->glink_eh_frame->size);
6808 }
6809
7619e7c7
AM
6810 return TRUE;
6811}
0eb4a168 6812
93d1b056
AM
6813/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6814 if it looks like nothing is using them. */
6815
6816static void
6817maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6818{
6819 struct elf_link_hash_entry *sda = lsect->sym;
6820
6821 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6822 {
6823 asection *s;
6824
6825 s = bfd_get_section_by_name (output_bfd, lsect->name);
6826 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6827 {
6828 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6829 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6830 {
6831 sda->def_regular = 0;
6832 /* This is somewhat magic. See elf_link_output_extsym. */
6833 sda->ref_dynamic = 1;
6834 sda->forced_local = 0;
6835 }
6836 }
6837 }
6838}
6839
6840void
6841ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6842{
6843 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6844
6845 if (htab != NULL)
6846 {
6847 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6848 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6849 }
6850}
6851
6852
0eb4a168
AM
6853/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6854
6855static bfd_boolean
6856ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6857{
6858 if (h->plt.plist != NULL
6859 && !h->def_regular
6860 && (!h->pointer_equality_needed
6861 || !h->ref_regular_nonweak))
6862 return FALSE;
6863
6864 return _bfd_elf_hash_symbol (h);
6865}
25dbc73a
AM
6866\f
6867#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6868
01017ef8
NS
6869/* Relaxation trampolines. r12 is available for clobbering (r11, is
6870 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6871static const int shared_stub_entry[] =
6872 {
6873 0x7c0802a6, /* mflr 0 */
6874 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6875 0x7d8802a6, /* mflr 12 */
6876 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6877 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6878 0x7c0803a6, /* mtlr 0 */
01017ef8 6879 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6880 0x4e800420, /* bctr */
6881 };
6882
6883static const int stub_entry[] =
6884 {
01017ef8
NS
6885 0x3d800000, /* lis 12,xxx@ha */
6886 0x398c0000, /* addi 12,12,xxx@l */
6887 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6888 0x4e800420, /* bctr */
6889 };
6890
5446cbdf
AM
6891struct ppc_elf_relax_info
6892{
6893 unsigned int workaround_size;
d3e454b9 6894 unsigned int picfixup_size;
5446cbdf
AM
6895};
6896
6897/* This function implements long branch trampolines, and the ppc476
6898 icache bug workaround. Any section needing trampolines or patch
6899 space for the workaround has its size extended so that we can
53291d1f 6900 add trampolines at the end of the section. */
5446cbdf 6901
25dbc73a
AM
6902static bfd_boolean
6903ppc_elf_relax_section (bfd *abfd,
6904 asection *isec,
6905 struct bfd_link_info *link_info,
6906 bfd_boolean *again)
6907{
d3e454b9 6908 struct one_branch_fixup
25dbc73a 6909 {
d3e454b9 6910 struct one_branch_fixup *next;
25dbc73a 6911 asection *tsec;
01017ef8
NS
6912 /* Final link, can use the symbol offset. For a
6913 relocatable link we use the symbol's index. */
25dbc73a
AM
6914 bfd_vma toff;
6915 bfd_vma trampoff;
6916 };
7619e7c7 6917
25dbc73a
AM
6918 Elf_Internal_Shdr *symtab_hdr;
6919 bfd_byte *contents = NULL;
6920 Elf_Internal_Sym *isymbuf = NULL;
6921 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6922 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6923 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6924 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6925 unsigned changes = 0;
5446cbdf 6926 bfd_boolean workaround_change;
d7128ce4 6927 struct ppc_elf_link_hash_table *htab;
d3e454b9 6928 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6929 asection *got2;
50248c89 6930 bfd_boolean maybe_pasted;
7619e7c7 6931
25dbc73a 6932 *again = FALSE;
7619e7c7 6933
5446cbdf 6934 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6935 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6936 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6937 || (isec->flags & SEC_LINKER_CREATED) != 0
6938 || isec->size < 4)
25dbc73a 6939 return TRUE;
7619e7c7 6940
c8a1f254
NS
6941 /* We cannot represent the required PIC relocs in the output, so don't
6942 do anything. The linker doesn't support mixing -shared and -r
6943 anyway. */
0e1862bb 6944 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6945 return TRUE;
5b914448 6946
5446cbdf
AM
6947 htab = ppc_elf_hash_table (link_info);
6948 if (htab == NULL)
6949 return TRUE;
6950
6951 isec->size = (isec->size + 3) & -4;
6952 if (isec->rawsize == 0)
6953 isec->rawsize = isec->size;
6954 trampbase = isec->size;
6955
53291d1f
AM
6956 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6957 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6958 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6959
d3e454b9
AM
6960 if (htab->params->ppc476_workaround
6961 || htab->params->pic_fixup > 0)
5446cbdf
AM
6962 {
6963 if (elf_section_data (isec)->sec_info == NULL)
6964 {
5446cbdf
AM
6965 elf_section_data (isec)->sec_info
6966 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6967 if (elf_section_data (isec)->sec_info == NULL)
6968 return FALSE;
6969 }
6970 relax_info = elf_section_data (isec)->sec_info;
6971 trampbase -= relax_info->workaround_size;
6972 }
6973
50248c89
AM
6974 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6975 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6976 /* Space for a branch around any trampolines. */
5446cbdf
AM
6977 trampoff = trampbase;
6978 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6979 trampoff += 4;
7619e7c7 6980
0ffa91dd 6981 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6982 picfixup_size = 0;
6983 if (htab->params->branch_trampolines
6984 || htab->params->pic_fixup > 0)
7619e7c7 6985 {
5446cbdf
AM
6986 /* Get a copy of the native relocations. */
6987 if (isec->reloc_count != 0)
25dbc73a 6988 {
5446cbdf
AM
6989 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6990 link_info->keep_memory);
6991 if (internal_relocs == NULL)
6992 goto error_return;
25dbc73a 6993 }
7619e7c7 6994
5446cbdf
AM
6995 got2 = bfd_get_section_by_name (abfd, ".got2");
6996
6997 irelend = internal_relocs + isec->reloc_count;
6998 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 6999 {
5446cbdf
AM
7000 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
7001 bfd_vma toff, roff;
7002 asection *tsec;
d3e454b9 7003 struct one_branch_fixup *f;
5446cbdf 7004 size_t insn_offset = 0;
d3e454b9 7005 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
7006 bfd_byte *hit_addr;
7007 unsigned long t0;
7008 struct elf_link_hash_entry *h;
7009 struct plt_entry **plist;
7010 unsigned char sym_type;
7011
7012 switch (r_type)
7013 {
7014 case R_PPC_REL24:
7015 case R_PPC_LOCAL24PC:
7016 case R_PPC_PLTREL24:
7017 max_branch_offset = 1 << 25;
7018 break;
7019
7020 case R_PPC_REL14:
7021 case R_PPC_REL14_BRTAKEN:
7022 case R_PPC_REL14_BRNTAKEN:
7023 max_branch_offset = 1 << 15;
7024 break;
7fce784e 7025
d3e454b9
AM
7026 case R_PPC_ADDR16_HA:
7027 if (htab->params->pic_fixup > 0)
7028 break;
7029 continue;
7030
5446cbdf
AM
7031 default:
7032 continue;
7033 }
7034
7035 /* Get the value of the symbol referred to by the reloc. */
7036 h = NULL;
7037 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 7038 {
5446cbdf
AM
7039 /* A local symbol. */
7040 Elf_Internal_Sym *isym;
7041
7042 /* Read this BFD's local symbols. */
25dbc73a 7043 if (isymbuf == NULL)
5446cbdf
AM
7044 {
7045 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
7046 if (isymbuf == NULL)
7047 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
7048 symtab_hdr->sh_info, 0,
7049 NULL, NULL, NULL);
7050 if (isymbuf == 0)
7051 goto error_return;
7052 }
7053 isym = isymbuf + ELF32_R_SYM (irel->r_info);
7054 if (isym->st_shndx == SHN_UNDEF)
7055 tsec = bfd_und_section_ptr;
7056 else if (isym->st_shndx == SHN_ABS)
7057 tsec = bfd_abs_section_ptr;
7058 else if (isym->st_shndx == SHN_COMMON)
7059 tsec = bfd_com_section_ptr;
7060 else
7061 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7062
7063 toff = isym->st_value;
7064 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 7065 }
25dbc73a 7066 else
5446cbdf
AM
7067 {
7068 /* Global symbol handling. */
7069 unsigned long indx;
7fce784e 7070
5446cbdf
AM
7071 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
7072 h = elf_sym_hashes (abfd)[indx];
7619e7c7 7073
5446cbdf
AM
7074 while (h->root.type == bfd_link_hash_indirect
7075 || h->root.type == bfd_link_hash_warning)
7076 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 7077
5446cbdf
AM
7078 if (h->root.type == bfd_link_hash_defined
7079 || h->root.type == bfd_link_hash_defweak)
7080 {
7081 tsec = h->root.u.def.section;
7082 toff = h->root.u.def.value;
7083 }
7084 else if (h->root.type == bfd_link_hash_undefined
7085 || h->root.type == bfd_link_hash_undefweak)
7086 {
7087 tsec = bfd_und_section_ptr;
0e1862bb 7088 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
7089 }
7090 else
7091 continue;
7092
9f7552cf
AM
7093 /* If this branch is to __tls_get_addr then we may later
7094 optimise away the call. We won't be needing a long-
7095 branch stub in that case. */
0e1862bb 7096 if (bfd_link_executable (link_info)
9f7552cf
AM
7097 && h == htab->tls_get_addr
7098 && irel != internal_relocs)
7099 {
7100 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
7101 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
7102 unsigned int tls_mask = 0;
7103
7104 /* The previous reloc should be one of R_PPC_TLSGD or
7105 R_PPC_TLSLD, or for older object files, a reloc
7106 on the __tls_get_addr arg setup insn. Get tls
7107 mask bits from the symbol on that reloc. */
7108 if (t_symndx < symtab_hdr->sh_info)
7109 {
7110 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7111
7112 if (local_got_offsets != NULL)
7113 {
7114 struct plt_entry **local_plt = (struct plt_entry **)
7115 (local_got_offsets + symtab_hdr->sh_info);
7116 char *lgot_masks = (char *)
7117 (local_plt + symtab_hdr->sh_info);
7118 tls_mask = lgot_masks[t_symndx];
7119 }
7120 }
7121 else
7122 {
7123 struct elf_link_hash_entry *th
7124 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
7125
7126 while (th->root.type == bfd_link_hash_indirect
7127 || th->root.type == bfd_link_hash_warning)
7128 th = (struct elf_link_hash_entry *) th->root.u.i.link;
7129
7130 tls_mask
7131 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
7132 }
7133
7134 /* The mask bits tell us if the call will be
7135 optimised away. */
7136 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
7137 && (t_rtype == R_PPC_TLSGD
7138 || t_rtype == R_PPC_GOT_TLSGD16
7139 || t_rtype == R_PPC_GOT_TLSGD16_LO))
7140 continue;
7141 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
7142 && (t_rtype == R_PPC_TLSLD
7143 || t_rtype == R_PPC_GOT_TLSLD16
7144 || t_rtype == R_PPC_GOT_TLSLD16_LO))
7145 continue;
7146 }
7147
5446cbdf
AM
7148 sym_type = h->type;
7149 }
7619e7c7 7150
d3e454b9
AM
7151 if (r_type == R_PPC_ADDR16_HA)
7152 {
7153 if (h != NULL
7154 && !h->def_regular
7155 && h->protected_def
7156 && ppc_elf_hash_entry (h)->has_addr16_ha
7157 && ppc_elf_hash_entry (h)->has_addr16_lo)
7158 picfixup_size += 12;
7159 continue;
7160 }
7161
5446cbdf
AM
7162 /* The condition here under which we call find_plt_ent must
7163 match that in relocate_section. If we call find_plt_ent here
7164 but not in relocate_section, or vice versa, then the branch
7165 destination used here may be incorrect. */
7166 plist = NULL;
7167 if (h != NULL)
25dbc73a 7168 {
5446cbdf
AM
7169 /* We know is_branch_reloc (r_type) is true. */
7170 if (h->type == STT_GNU_IFUNC
7171 || r_type == R_PPC_PLTREL24)
7172 plist = &h->plt.plist;
25dbc73a 7173 }
5446cbdf
AM
7174 else if (sym_type == STT_GNU_IFUNC
7175 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 7176 {
5446cbdf
AM
7177 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
7178 struct plt_entry **local_plt = (struct plt_entry **)
7179 (local_got_offsets + symtab_hdr->sh_info);
7180 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 7181 }
5446cbdf 7182 if (plist != NULL)
a9585d22 7183 {
5446cbdf
AM
7184 bfd_vma addend = 0;
7185 struct plt_entry *ent;
7186
0e1862bb 7187 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7188 addend = irel->r_addend;
7189 ent = find_plt_ent (plist, got2, addend);
7190 if (ent != NULL)
a9585d22 7191 {
5446cbdf
AM
7192 if (htab->plt_type == PLT_NEW
7193 || h == NULL
7194 || !htab->elf.dynamic_sections_created
7195 || h->dynindx == -1)
7196 {
7197 tsec = htab->glink;
7198 toff = ent->glink_offset;
7199 }
7200 else
7201 {
ce558b89 7202 tsec = htab->elf.splt;
5446cbdf
AM
7203 toff = ent->plt.offset;
7204 }
de972ffa
AM
7205 }
7206 }
de972ffa 7207
5446cbdf
AM
7208 /* If the branch and target are in the same section, you have
7209 no hope of adding stubs. We'll error out later should the
7210 branch overflow. */
7211 if (tsec == isec)
7212 continue;
25dbc73a 7213
5446cbdf
AM
7214 /* There probably isn't any reason to handle symbols in
7215 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7216 attribute for a code section, and we are only looking at
7217 branches. However, implement it correctly here as a
7218 reference for other target relax_section functions. */
7219 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7220 {
7221 /* At this stage in linking, no SEC_MERGE symbol has been
7222 adjusted, so all references to such symbols need to be
7223 passed through _bfd_merged_section_offset. (Later, in
7224 relocate_section, all SEC_MERGE symbols *except* for
7225 section symbols have been adjusted.)
7226
7227 gas may reduce relocations against symbols in SEC_MERGE
7228 sections to a relocation against the section symbol when
7229 the original addend was zero. When the reloc is against
7230 a section symbol we should include the addend in the
7231 offset passed to _bfd_merged_section_offset, since the
7232 location of interest is the original symbol. On the
7233 other hand, an access to "sym+addend" where "sym" is not
7234 a section symbol should not include the addend; Such an
7235 access is presumed to be an offset from "sym"; The
7236 location of interest is just "sym". */
7237 if (sym_type == STT_SECTION)
7238 toff += irel->r_addend;
7239
7240 toff
7241 = _bfd_merged_section_offset (abfd, &tsec,
7242 elf_section_data (tsec)->sec_info,
7243 toff);
7244
7245 if (sym_type != STT_SECTION)
7246 toff += irel->r_addend;
7247 }
7248 /* PLTREL24 addends are special. */
7249 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7250 toff += irel->r_addend;
7619e7c7 7251
5446cbdf 7252 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7253 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7254 && tsec == bfd_und_section_ptr)
7255 || tsec->output_section == NULL
7256 || (tsec->owner != NULL
7257 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7258 continue;
7619e7c7 7259
5446cbdf 7260 roff = irel->r_offset;
7de713b9 7261
5446cbdf
AM
7262 /* If the branch is in range, no need to do anything. */
7263 if (tsec != bfd_und_section_ptr
0e1862bb 7264 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7265 /* A relocatable link may have sections moved during
7266 final link, so do not presume they remain in range. */
7267 || tsec->output_section == isec->output_section))
7268 {
7269 bfd_vma symaddr, reladdr;
7619e7c7 7270
5446cbdf
AM
7271 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7272 reladdr = isec->output_section->vma + isec->output_offset + roff;
7273 if (symaddr - reladdr + max_branch_offset
7274 < 2 * max_branch_offset)
7275 continue;
7276 }
01017ef8 7277
5446cbdf 7278 /* Look for an existing fixup to this address. */
d3e454b9 7279 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7280 if (f->tsec == tsec && f->toff == toff)
7281 break;
252b5132 7282
5446cbdf
AM
7283 if (f == NULL)
7284 {
7285 size_t size;
7286 unsigned long stub_rtype;
25dbc73a 7287
5446cbdf
AM
7288 val = trampoff - roff;
7289 if (val >= max_branch_offset)
7290 /* Oh dear, we can't reach a trampoline. Don't try to add
7291 one. We'll report an error later. */
7292 continue;
252b5132 7293
0e1862bb 7294 if (bfd_link_pic (link_info))
5446cbdf
AM
7295 {
7296 size = 4 * ARRAY_SIZE (shared_stub_entry);
7297 insn_offset = 12;
7298 }
7299 else
7300 {
7301 size = 4 * ARRAY_SIZE (stub_entry);
7302 insn_offset = 0;
7303 }
7304 stub_rtype = R_PPC_RELAX;
ce558b89 7305 if (tsec == htab->elf.splt
5446cbdf
AM
7306 || tsec == htab->glink)
7307 {
7308 stub_rtype = R_PPC_RELAX_PLT;
7309 if (r_type == R_PPC_PLTREL24)
7310 stub_rtype = R_PPC_RELAX_PLTREL24;
7311 }
252b5132 7312
5446cbdf
AM
7313 /* Hijack the old relocation. Since we need two
7314 relocations for this use a "composite" reloc. */
7315 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7316 stub_rtype);
7317 irel->r_offset = trampoff + insn_offset;
7318 if (r_type == R_PPC_PLTREL24
7319 && stub_rtype != R_PPC_RELAX_PLTREL24)
7320 irel->r_addend = 0;
7321
7322 /* Record the fixup so we don't do it again this section. */
7323 f = bfd_malloc (sizeof (*f));
d3e454b9 7324 f->next = branch_fixups;
5446cbdf
AM
7325 f->tsec = tsec;
7326 f->toff = toff;
7327 f->trampoff = trampoff;
d3e454b9 7328 branch_fixups = f;
5446cbdf
AM
7329
7330 trampoff += size;
7331 changes++;
25dbc73a
AM
7332 }
7333 else
7334 {
5446cbdf
AM
7335 val = f->trampoff - roff;
7336 if (val >= max_branch_offset)
7337 continue;
252b5132 7338
5446cbdf
AM
7339 /* Nop out the reloc, since we're finalizing things here. */
7340 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7341 }
252b5132 7342
5446cbdf
AM
7343 /* Get the section contents. */
7344 if (contents == NULL)
25dbc73a 7345 {
5446cbdf
AM
7346 /* Get cached copy if it exists. */
7347 if (elf_section_data (isec)->this_hdr.contents != NULL)
7348 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7349 /* Go get them off disk. */
5446cbdf 7350 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7351 goto error_return;
7352 }
252b5132 7353
5446cbdf
AM
7354 /* Fix up the existing branch to hit the trampoline. */
7355 hit_addr = contents + roff;
7356 switch (r_type)
7357 {
7358 case R_PPC_REL24:
7359 case R_PPC_LOCAL24PC:
7360 case R_PPC_PLTREL24:
7361 t0 = bfd_get_32 (abfd, hit_addr);
7362 t0 &= ~0x3fffffc;
7363 t0 |= val & 0x3fffffc;
7364 bfd_put_32 (abfd, t0, hit_addr);
7365 break;
252b5132 7366
5446cbdf
AM
7367 case R_PPC_REL14:
7368 case R_PPC_REL14_BRTAKEN:
7369 case R_PPC_REL14_BRNTAKEN:
7370 t0 = bfd_get_32 (abfd, hit_addr);
7371 t0 &= ~0xfffc;
7372 t0 |= val & 0xfffc;
7373 bfd_put_32 (abfd, t0, hit_addr);
7374 break;
7375 }
25dbc73a 7376 }
252b5132 7377
d3e454b9 7378 while (branch_fixups != NULL)
25dbc73a 7379 {
d3e454b9
AM
7380 struct one_branch_fixup *f = branch_fixups;
7381 branch_fixups = branch_fixups->next;
25dbc73a
AM
7382 free (f);
7383 }
5446cbdf 7384 }
252b5132 7385
5446cbdf
AM
7386 workaround_change = FALSE;
7387 newsize = trampoff;
795bc6b3 7388 if (htab->params->ppc476_workaround
0e1862bb 7389 && (!bfd_link_relocatable (link_info)
795bc6b3 7390 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7391 {
7392 bfd_vma addr, end_addr;
7393 unsigned int crossings;
795bc6b3 7394 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7395
7396 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7397 end_addr = addr + trampoff;
5446cbdf 7398 addr &= -pagesize;
795bc6b3 7399 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7400 if (crossings != 0)
7401 {
7402 /* Keep space aligned, to ensure the patch code itself does
7403 not cross a page. Don't decrease size calculated on a
7404 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7405 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7406 newsize += crossings * 16;
7407 if (relax_info->workaround_size < newsize)
7408 {
7409 relax_info->workaround_size = newsize;
7410 workaround_change = TRUE;
5446cbdf
AM
7411 }
7412 /* Ensure relocate_section is called. */
7413 isec->flags |= SEC_RELOC;
7414 }
7415 newsize = trampoff + relax_info->workaround_size;
7416 }
7417
d3e454b9
AM
7418 if (htab->params->pic_fixup > 0)
7419 {
7420 picfixup_size -= relax_info->picfixup_size;
7421 if (picfixup_size != 0)
7422 relax_info->picfixup_size += picfixup_size;
7423 newsize += relax_info->picfixup_size;
7424 }
7425
7426 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7427 isec->size = newsize;
7428
25dbc73a
AM
7429 if (isymbuf != NULL
7430 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7431 {
25dbc73a
AM
7432 if (! link_info->keep_memory)
7433 free (isymbuf);
252b5132 7434 else
25dbc73a
AM
7435 {
7436 /* Cache the symbols for elf_link_input_bfd. */
7437 symtab_hdr->contents = (unsigned char *) isymbuf;
7438 }
252b5132
RH
7439 }
7440
25dbc73a
AM
7441 if (contents != NULL
7442 && elf_section_data (isec)->this_hdr.contents != contents)
7443 {
53291d1f 7444 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7445 free (contents);
7446 else
7447 {
7448 /* Cache the section contents for elf_link_input_bfd. */
7449 elf_section_data (isec)->this_hdr.contents = contents;
7450 }
7451 }
252b5132 7452
d3e454b9 7453 changes += picfixup_size;
9bc4e62b 7454 if (changes != 0)
25dbc73a 7455 {
9bc4e62b
NS
7456 /* Append sufficient NOP relocs so we can write out relocation
7457 information for the trampolines. */
d4730f92 7458 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7459 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7460 * sizeof (*new_relocs));
7461 unsigned ix;
5b914448 7462
9bc4e62b
NS
7463 if (!new_relocs)
7464 goto error_return;
7465 memcpy (new_relocs, internal_relocs,
7466 isec->reloc_count * sizeof (*new_relocs));
7467 for (ix = changes; ix--;)
7468 {
7469 irel = new_relocs + ix + isec->reloc_count;
7470
7471 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7472 }
7473 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7474 free (internal_relocs);
9bc4e62b
NS
7475 elf_section_data (isec)->relocs = new_relocs;
7476 isec->reloc_count += changes;
d4730f92
BS
7477 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7478 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7479 }
5446cbdf
AM
7480 else if (internal_relocs != NULL
7481 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7482 free (internal_relocs);
252b5132 7483
5446cbdf 7484 *again = changes != 0 || workaround_change;
b34976b6 7485 return TRUE;
25dbc73a
AM
7486
7487 error_return:
d3e454b9 7488 while (branch_fixups != NULL)
5446cbdf 7489 {
d3e454b9
AM
7490 struct one_branch_fixup *f = branch_fixups;
7491 branch_fixups = branch_fixups->next;
5446cbdf
AM
7492 free (f);
7493 }
25dbc73a
AM
7494 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7495 free (isymbuf);
7496 if (contents != NULL
7497 && elf_section_data (isec)->this_hdr.contents != contents)
7498 free (contents);
7499 if (internal_relocs != NULL
7500 && elf_section_data (isec)->relocs != internal_relocs)
7501 free (internal_relocs);
7502 return FALSE;
252b5132 7503}
252b5132 7504\f
8a696751
AM
7505/* What to do when ld finds relocations against symbols defined in
7506 discarded sections. */
7507
7508static unsigned int
7509ppc_elf_action_discarded (asection *sec)
7510{
7511 if (strcmp (".fixup", sec->name) == 0)
7512 return 0;
7513
7514 if (strcmp (".got2", sec->name) == 0)
7515 return 0;
7516
7517 return _bfd_elf_default_action_discarded (sec);
7518}
c9a2f333 7519\f
25dbc73a 7520/* Fill in the address for a pointer generated in a linker section. */
252b5132 7521
25dbc73a 7522static bfd_vma
76750a2f 7523elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7524 elf_linker_section_t *lsect,
7525 struct elf_link_hash_entry *h,
7526 bfd_vma relocation,
2bb04cf2 7527 const Elf_Internal_Rela *rel)
25dbc73a
AM
7528{
7529 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7530
25dbc73a 7531 BFD_ASSERT (lsect != NULL);
252b5132 7532
25dbc73a 7533 if (h != NULL)
252b5132 7534 {
25dbc73a
AM
7535 /* Handle global symbol. */
7536 struct ppc_elf_link_hash_entry *eh;
252b5132 7537
25dbc73a 7538 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7539 BFD_ASSERT (eh->elf.def_regular);
7540 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7541 }
7542 else
7543 {
7544 /* Handle local symbol. */
7545 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7546
0c8d6e5c 7547 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7548 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7549 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7550 }
252b5132 7551
76750a2f
AM
7552 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7553 rel->r_addend,
7554 lsect);
7555 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7556
76750a2f
AM
7557 /* Offset will always be a multiple of four, so use the bottom bit
7558 as a "written" flag. */
7559 if ((linker_section_ptr->offset & 1) == 0)
7560 {
7561 bfd_put_32 (lsect->section->owner,
7562 relocation + linker_section_ptr->addend,
7563 lsect->section->contents + linker_section_ptr->offset);
7564 linker_section_ptr->offset += 1;
252b5132
RH
7565 }
7566
bd6c6e2b
AM
7567 relocation = (lsect->section->output_section->vma
7568 + lsect->section->output_offset
76750a2f 7569 + linker_section_ptr->offset - 1
bd6c6e2b 7570 - SYM_VAL (lsect->sym));
252b5132 7571
25dbc73a
AM
7572#ifdef DEBUG
7573 fprintf (stderr,
7574 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7575 lsect->name, (long) relocation, (long) relocation);
7576#endif
252b5132 7577
bd6c6e2b 7578 return relocation;
252b5132 7579}
25dbc73a 7580
e054468f
AM
7581#define PPC_LO(v) ((v) & 0xffff)
7582#define PPC_HI(v) (((v) >> 16) & 0xffff)
7583#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7584
7585static void
a7f2871e 7586write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7587 struct bfd_link_info *info)
7588{
7589 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7590 bfd *output_bfd = info->output_bfd;
7591 bfd_vma plt;
e054468f
AM
7592
7593 plt = ((ent->plt.offset & ~1)
7594 + plt_sec->output_section->vma
7595 + plt_sec->output_offset);
e054468f 7596
0e1862bb 7597 if (bfd_link_pic (info))
e054468f
AM
7598 {
7599 bfd_vma got = 0;
7600
7601 if (ent->addend >= 32768)
7602 got = (ent->addend
7603 + ent->sec->output_section->vma
7604 + ent->sec->output_offset);
7605 else if (htab->elf.hgot != NULL)
7606 got = SYM_VAL (htab->elf.hgot);
7607
7608 plt -= got;
7609
7610 if (plt + 0x8000 < 0x10000)
7611 {
7612 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7613 p += 4;
7614 bfd_put_32 (output_bfd, MTCTR_11, p);
7615 p += 4;
7616 bfd_put_32 (output_bfd, BCTR, p);
7617 p += 4;
da3a2088 7618 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7619 p += 4;
7620 }
7621 else
7622 {
7623 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7624 p += 4;
7625 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7626 p += 4;
7627 bfd_put_32 (output_bfd, MTCTR_11, p);
7628 p += 4;
7629 bfd_put_32 (output_bfd, BCTR, p);
7630 p += 4;
7631 }
7632 }
7633 else
7634 {
7635 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7636 p += 4;
7637 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7638 p += 4;
7639 bfd_put_32 (output_bfd, MTCTR_11, p);
7640 p += 4;
7641 bfd_put_32 (output_bfd, BCTR, p);
7642 p += 4;
7643 }
7644}
7645
bd6c6e2b
AM
7646/* Return true if symbol is defined statically. */
7647
7648static bfd_boolean
7649is_static_defined (struct elf_link_hash_entry *h)
7650{
7651 return ((h->root.type == bfd_link_hash_defined
7652 || h->root.type == bfd_link_hash_defweak)
7653 && h->root.u.def.section != NULL
7654 && h->root.u.def.section->output_section != NULL);
7655}
7656
2d0f3896
AM
7657/* If INSN is an opcode that may be used with an @tls operand, return
7658 the transformed insn for TLS optimisation, otherwise return 0. If
7659 REG is non-zero only match an insn with RB or RA equal to REG. */
7660
7661unsigned int
7662_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7663{
7664 unsigned int rtra;
7665
7666 if ((insn & (0x3f << 26)) != 31 << 26)
7667 return 0;
7668
7669 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7670 rtra = insn & ((1 << 26) - (1 << 16));
7671 else if (((insn >> 16) & 0x1f) == reg)
7672 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7673 else
7674 return 0;
7675
7676 if ((insn & (0x3ff << 1)) == 266 << 1)
7677 /* add -> addi. */
7678 insn = 14 << 26;
7679 else if ((insn & (0x1f << 1)) == 23 << 1
7680 && ((insn & (0x1f << 6)) < 14 << 6
7681 || ((insn & (0x1f << 6)) >= 16 << 6
7682 && (insn & (0x1f << 6)) < 24 << 6)))
7683 /* load and store indexed -> dform. */
7684 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7685 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7686 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7687 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7688 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7689 /* lwax -> lwa. */
7690 insn = (58 << 26) | 2;
7691 else
7692 return 0;
7693 insn |= rtra;
7694 return insn;
7695}
7696
766bc656
AM
7697/* If INSN is an opcode that may be used with an @tprel operand, return
7698 the transformed insn for an undefined weak symbol, ie. with the
7699 thread pointer REG operand removed. Otherwise return 0. */
7700
7701unsigned int
7702_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7703{
7704 if ((insn & (0x1f << 16)) == reg << 16
7705 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7706 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7707 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7708 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7709 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7710 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7711 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7712 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7713 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7714 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7715 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7716 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7717 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7718 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7719 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7720 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7721 && (insn & 3) != 1)
7722 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7723 && ((insn & 3) == 0 || (insn & 3) == 3))))
7724 {
7725 insn &= ~(0x1f << 16);
7726 }
7727 else if ((insn & (0x1f << 21)) == reg << 21
7728 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7729 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7730 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7731 {
7732 insn &= ~(0x1f << 21);
7733 insn |= (insn & (0x1f << 16)) << 5;
7734 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7735 insn -= 2 >> 26; /* convert to ori,oris */
7736 }
7737 else
7738 insn = 0;
7739 return insn;
7740}
7741
1fe532cf
AM
7742static bfd_boolean
7743is_insn_ds_form (unsigned int insn)
7744{
7745 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7746 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7747 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7748 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7749}
7750
7751static bfd_boolean
7752is_insn_dq_form (unsigned int insn)
7753{
a680de9a
PB
7754 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7755 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7756 && (insn & 3) == 1));
1fe532cf
AM
7757}
7758
252b5132
RH
7759/* The RELOCATE_SECTION function is called by the ELF backend linker
7760 to handle the relocations for a section.
7761
7762 The relocs are always passed as Rela structures; if the section
7763 actually uses Rel structures, the r_addend field will always be
7764 zero.
7765
7766 This function is responsible for adjust the section contents as
7767 necessary, and (if using Rela relocs and generating a
1049f94e 7768 relocatable output file) adjusting the reloc addend as
252b5132
RH
7769 necessary.
7770
7771 This function does not have to worry about setting the reloc
7772 address or the reloc symbol index.
7773
7774 LOCAL_SYMS is a pointer to the swapped in local symbols.
7775
7776 LOCAL_SECTIONS is an array giving the section in the input file
7777 corresponding to the st_shndx field of each local symbol.
7778
7779 The global hash table entry for the global symbols can be found
7780 via elf_sym_hashes (input_bfd).
7781
1049f94e 7782 When generating relocatable output, this function must handle
252b5132
RH
7783 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7784 going to be the section symbol corresponding to the output
7785 section, which means that the addend must be adjusted
7786 accordingly. */
7787
b34976b6 7788static bfd_boolean
55fd94b0
AM
7789ppc_elf_relocate_section (bfd *output_bfd,
7790 struct bfd_link_info *info,
7791 bfd *input_bfd,
7792 asection *input_section,
7793 bfd_byte *contents,
7794 Elf_Internal_Rela *relocs,
7795 Elf_Internal_Sym *local_syms,
7796 asection **local_sections)
252b5132 7797{
7619e7c7
AM
7798 Elf_Internal_Shdr *symtab_hdr;
7799 struct elf_link_hash_entry **sym_hashes;
7800 struct ppc_elf_link_hash_table *htab;
7801 Elf_Internal_Rela *rel;
c316a17c 7802 Elf_Internal_Rela *wrel;
7619e7c7
AM
7803 Elf_Internal_Rela *relend;
7804 Elf_Internal_Rela outrel;
f95f8542 7805 asection *got2;
252b5132 7806 bfd_vma *local_got_offsets;
b34976b6 7807 bfd_boolean ret = TRUE;
95f0d0d2 7808 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 7809 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7810 unsigned int picfixup_size = 0;
7811 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7812
252b5132 7813#ifdef DEBUG
d003868e
AM
7814 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7815 "%ld relocations%s",
7816 input_bfd, input_section,
7817 (long) input_section->reloc_count,
0e1862bb 7818 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7819#endif
7820
a6aa5195
AM
7821 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7822
e47cd125 7823 /* Initialize howto table if not already done. */
8da6118f 7824 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7825 ppc_elf_howto_init ();
7826
7619e7c7 7827 htab = ppc_elf_hash_table (info);
252b5132 7828 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7829 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7830 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7831 /* We have to handle relocations in vxworks .tls_vars sections
7832 specially, because the dynamic loader is 'weird'. */
0e1862bb 7833 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7834 && !strcmp (input_section->output_section->name,
7835 ".tls_vars"));
d3e454b9
AM
7836 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7837 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7838 rel = wrel = relocs;
7619e7c7 7839 relend = relocs + input_section->reloc_count;
c316a17c 7840 for (; rel < relend; wrel++, rel++)
252b5132 7841 {
7619e7c7
AM
7842 enum elf_ppc_reloc_type r_type;
7843 bfd_vma addend;
7844 bfd_reloc_status_type r;
7845 Elf_Internal_Sym *sym;
7846 asection *sec;
7847 struct elf_link_hash_entry *h;
7848 const char *sym_name;
252b5132
RH
7849 reloc_howto_type *howto;
7850 unsigned long r_symndx;
7851 bfd_vma relocation;
91d6fa6a 7852 bfd_vma branch_bit, from;
7619e7c7
AM
7853 bfd_boolean unresolved_reloc;
7854 bfd_boolean warned;
7855 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7856 struct plt_entry **ifunc;
86c95733 7857 struct reloc_howto_struct alt_howto;
7619e7c7 7858
c316a17c 7859 again:
55fd94b0
AM
7860 r_type = ELF32_R_TYPE (rel->r_info);
7861 sym = NULL;
7862 sec = NULL;
7863 h = NULL;
7619e7c7
AM
7864 unresolved_reloc = FALSE;
7865 warned = FALSE;
252b5132 7866 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7867
252b5132
RH
7868 if (r_symndx < symtab_hdr->sh_info)
7869 {
7870 sym = local_syms + r_symndx;
7871 sec = local_sections[r_symndx];
26c61ae5 7872 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7873
8517fae7 7874 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7875 }
7876 else
7877 {
62d887d4
L
7878 bfd_boolean ignored;
7879
b2a8e766
AM
7880 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7881 r_symndx, symtab_hdr, sym_hashes,
7882 h, sec, relocation,
62d887d4 7883 unresolved_reloc, warned, ignored);
9abc968f 7884
252b5132 7885 sym_name = h->root.root.string;
7619e7c7
AM
7886 }
7887
dbaa2011 7888 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7889 {
7890 /* For relocs against symbols from removed linkonce sections,
7891 or sections discarded by a linker script, we just want the
7892 section contents zeroed. Avoid any special processing. */
7893 howto = NULL;
7894 if (r_type < R_PPC_max)
7895 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7896
7897 _bfd_clear_contents (howto, input_bfd, input_section,
7898 contents + rel->r_offset);
7899 wrel->r_offset = rel->r_offset;
7900 wrel->r_info = 0;
7901 wrel->r_addend = 0;
7902
7903 /* For ld -r, remove relocations in debug sections against
dcd2b8a0 7904 symbols defined in discarded sections. Not done for
c316a17c
AM
7905 non-debug to preserve relocs in .eh_frame which the
7906 eh_frame editing code expects to be present. */
7907 if (bfd_link_relocatable (info)
7908 && (input_section->flags & SEC_DEBUGGING))
7909 wrel--;
7910
7911 continue;
ab96bf03
AM
7912 }
7913
0e1862bb 7914 if (bfd_link_relocatable (info))
ab96bf03
AM
7915 {
7916 if (got2 != NULL
7917 && r_type == R_PPC_PLTREL24
f75e0e33 7918 && rel->r_addend != 0)
ab96bf03
AM
7919 {
7920 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7921 addend specifies the GOT pointer offset within .got2. */
7922 rel->r_addend += got2->output_offset;
7923 }
53291d1f
AM
7924 if (r_type != R_PPC_RELAX_PLT
7925 && r_type != R_PPC_RELAX_PLTREL24
7926 && r_type != R_PPC_RELAX)
c316a17c 7927 goto copy_reloc;
ab96bf03
AM
7928 }
7929
7619e7c7
AM
7930 /* TLS optimizations. Replace instruction sequences and relocs
7931 based on information we collected in tls_optimize. We edit
7932 RELOCS so that --emit-relocs will output something sensible
7933 for the final instruction stream. */
7934 tls_mask = 0;
7935 tls_gd = 0;
727fc41e
AM
7936 if (h != NULL)
7937 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7938 else if (local_got_offsets != NULL)
7619e7c7 7939 {
e054468f 7940 struct plt_entry **local_plt;
727fc41e 7941 char *lgot_masks;
e054468f
AM
7942 local_plt
7943 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7944 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7945 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7946 }
7947
7948 /* Ensure reloc mapping code below stays sane. */
7949 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7950 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7951 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7952 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7953 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7954 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7955 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7956 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7957 abort ();
7958 switch (r_type)
7959 {
7960 default:
7961 break;
7962
7963 case R_PPC_GOT_TPREL16:
7964 case R_PPC_GOT_TPREL16_LO:
e054468f 7965 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7966 && (tls_mask & TLS_TPREL) == 0)
7967 {
7968 bfd_vma insn;
91d6fa6a 7969
95f0d0d2 7970 insn = bfd_get_32 (input_bfd,
c316a17c 7971 contents + rel->r_offset - d_offset);
7619e7c7
AM
7972 insn &= 31 << 21;
7973 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 7974 bfd_put_32 (input_bfd, insn,
c316a17c 7975 contents + rel->r_offset - d_offset);
7619e7c7
AM
7976 r_type = R_PPC_TPREL16_HA;
7977 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7978 }
7979 break;
7980
7981 case R_PPC_TLS:
e054468f 7982 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7983 && (tls_mask & TLS_TPREL) == 0)
7984 {
2d0f3896
AM
7985 bfd_vma insn;
7986
95f0d0d2 7987 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
7988 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7989 if (insn == 0)
7619e7c7 7990 abort ();
95f0d0d2 7991 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
7992 r_type = R_PPC_TPREL16_LO;
7993 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7994
7619e7c7 7995 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7996 PPC_TPREL16_LO which is at low-order half-word. */
7997 rel->r_offset += d_offset;
7619e7c7
AM
7998 }
7999 break;
8000
8001 case R_PPC_GOT_TLSGD16_HI:
8002 case R_PPC_GOT_TLSGD16_HA:
8003 tls_gd = TLS_TPRELGD;
e054468f 8004 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
8005 goto tls_gdld_hi;
8006 break;
8007
8008 case R_PPC_GOT_TLSLD16_HI:
8009 case R_PPC_GOT_TLSLD16_HA:
e054468f 8010 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
8011 {
8012 tls_gdld_hi:
8013 if ((tls_mask & tls_gd) != 0)
8014 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8015 + R_PPC_GOT_TPREL16);
8016 else
8017 {
4fe5ca5b 8018 rel->r_offset -= d_offset;
95f0d0d2 8019 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
8020 r_type = R_PPC_NONE;
8021 }
8022 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8023 }
8024 break;
8025
8026 case R_PPC_GOT_TLSGD16:
8027 case R_PPC_GOT_TLSGD16_LO:
8028 tls_gd = TLS_TPRELGD;
e054468f 8029 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 8030 goto tls_ldgd_opt;
7619e7c7
AM
8031 break;
8032
8033 case R_PPC_GOT_TLSLD16:
8034 case R_PPC_GOT_TLSLD16_LO:
e054468f 8035 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 8036 {
3a71aa26 8037 unsigned int insn1, insn2;
b7fcf6f6 8038 bfd_vma offset;
7619e7c7 8039
b7fcf6f6 8040 tls_ldgd_opt:
727fc41e
AM
8041 offset = (bfd_vma) -1;
8042 /* If not using the newer R_PPC_TLSGD/LD to mark
8043 __tls_get_addr calls, we must trust that the call
8044 stays with its arg setup insns, ie. that the next
8045 reloc is the __tls_get_addr call associated with
8046 the current reloc. Edit both insns. */
8047 if (input_section->has_tls_get_addr_call
8048 && rel + 1 < relend
8049 && branch_reloc_hash_match (input_bfd, rel + 1,
8050 htab->tls_get_addr))
8051 offset = rel[1].r_offset;
b86ac8e3
AM
8052 /* We read the low GOT_TLS insn because we need to keep
8053 the destination reg. It may be something other than
8054 the usual r3, and moved to r3 before the call by
8055 intervening code. */
95f0d0d2 8056 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 8057 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8058 if ((tls_mask & tls_gd) != 0)
8059 {
8060 /* IE */
b86ac8e3 8061 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 8062 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
8063 if (offset != (bfd_vma) -1)
8064 {
f58d5a2d 8065 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 8066 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 8067 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8068 }
b7fcf6f6
AM
8069 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
8070 + R_PPC_GOT_TPREL16);
8071 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
8072 }
8073 else
8074 {
8075 /* LE */
b86ac8e3
AM
8076 insn1 &= 0x1f << 21;
8077 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
8078 if (tls_gd == 0)
8079 {
b7fcf6f6 8080 /* Was an LD reloc. */
1d483afe
AM
8081 for (r_symndx = 0;
8082 r_symndx < symtab_hdr->sh_info;
8083 r_symndx++)
8084 if (local_sections[r_symndx] == sec)
8085 break;
8086 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8087 r_symndx = STN_UNDEF;
b7fcf6f6 8088 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8089 if (r_symndx != STN_UNDEF)
1d483afe
AM
8090 rel->r_addend -= (local_syms[r_symndx].st_value
8091 + sec->output_offset
8092 + sec->output_section->vma);
7619e7c7 8093 }
b7fcf6f6
AM
8094 r_type = R_PPC_TPREL16_HA;
8095 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
8096 if (offset != (bfd_vma) -1)
8097 {
8098 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8099 rel[1].r_offset = offset + d_offset;
8100 rel[1].r_addend = rel->r_addend;
8101 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8102 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 8103 }
b7fcf6f6 8104 }
95f0d0d2 8105 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 8106 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
8107 if (tls_gd == 0)
8108 {
8109 /* We changed the symbol on an LD reloc. Start over
8110 in order to get h, sym, sec etc. right. */
c316a17c 8111 goto again;
7619e7c7 8112 }
252b5132 8113 }
7619e7c7 8114 break;
727fc41e
AM
8115
8116 case R_PPC_TLSGD:
e054468f 8117 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
8118 {
8119 unsigned int insn2;
8120 bfd_vma offset = rel->r_offset;
8121
8122 if ((tls_mask & TLS_TPRELGD) != 0)
8123 {
8124 /* IE */
8125 r_type = R_PPC_NONE;
8126 insn2 = 0x7c631214; /* add 3,3,2 */
8127 }
8128 else
8129 {
8130 /* LE */
8131 r_type = R_PPC_TPREL16_LO;
8132 rel->r_offset += d_offset;
8133 insn2 = 0x38630000; /* addi 3,3,0 */
8134 }
8135 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 8136 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
8137 /* Zap the reloc on the _tls_get_addr call too. */
8138 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 8139 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
8140 }
8141 break;
8142
8143 case R_PPC_TLSLD:
e054468f 8144 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
8145 {
8146 unsigned int insn2;
8147
8148 for (r_symndx = 0;
8149 r_symndx < symtab_hdr->sh_info;
8150 r_symndx++)
8151 if (local_sections[r_symndx] == sec)
8152 break;
8153 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 8154 r_symndx = STN_UNDEF;
727fc41e 8155 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 8156 if (r_symndx != STN_UNDEF)
727fc41e
AM
8157 rel->r_addend -= (local_syms[r_symndx].st_value
8158 + sec->output_offset
8159 + sec->output_section->vma);
8160
8161 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
8162 rel->r_offset += d_offset;
8163 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 8164 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
8165 contents + rel->r_offset - d_offset);
8166 /* Zap the reloc on the _tls_get_addr call too. */
8167 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 8168 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 8169 goto again;
727fc41e
AM
8170 }
8171 break;
7619e7c7
AM
8172 }
8173
8174 /* Handle other relocations that tweak non-addend part of insn. */
8175 branch_bit = 0;
8176 switch (r_type)
8177 {
8178 default:
8179 break;
8180
8181 /* Branch taken prediction relocations. */
8182 case R_PPC_ADDR14_BRTAKEN:
8183 case R_PPC_REL14_BRTAKEN:
8184 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8185 /* Fall through. */
7619e7c7 8186
4cc11e76 8187 /* Branch not taken prediction relocations. */
7619e7c7
AM
8188 case R_PPC_ADDR14_BRNTAKEN:
8189 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8190 {
8191 bfd_vma insn;
7619e7c7 8192
95f0d0d2 8193 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8194 insn &= ~BRANCH_PREDICT_BIT;
8195 insn |= branch_bit;
7619e7c7 8196
91d6fa6a
NC
8197 from = (rel->r_offset
8198 + input_section->output_offset
8199 + input_section->output_section->vma);
7619e7c7 8200
91d6fa6a
NC
8201 /* Invert 'y' bit if not the default. */
8202 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8203 insn ^= BRANCH_PREDICT_BIT;
8204
95f0d0d2 8205 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a
NC
8206 break;
8207 }
252b5132
RH
8208 }
8209
d3e454b9
AM
8210 if (ELIMINATE_COPY_RELOCS
8211 && h != NULL
8212 && !h->def_regular
8213 && h->protected_def
8214 && ppc_elf_hash_entry (h)->has_addr16_ha
8215 && ppc_elf_hash_entry (h)->has_addr16_lo
8216 && htab->params->pic_fixup > 0)
8217 {
8218 /* Convert lis;addi or lis;load/store accessing a protected
8219 variable defined in a shared library to PIC. */
8220 unsigned int insn;
8221
8222 if (r_type == R_PPC_ADDR16_HA)
8223 {
95f0d0d2 8224 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8225 contents + rel->r_offset - d_offset);
8226 if ((insn & (0x3f << 26)) == (15u << 26)
8227 && (insn & (0x1f << 16)) == 0 /* lis */)
8228 {
8229 bfd_byte *p;
8230 bfd_vma off;
8231 bfd_vma got_addr;
8232
8233 p = (contents + input_section->size
8234 - relax_info->workaround_size
8235 - relax_info->picfixup_size
8236 + picfixup_size);
8237 off = (p - contents) - (rel->r_offset - d_offset);
8238 if (off > 0x1fffffc || (off & 3) != 0)
8239 info->callbacks->einfo
174d0a74 8240 (_("%H: fixup branch overflow\n"),
d3e454b9
AM
8241 input_bfd, input_section, rel->r_offset);
8242
95f0d0d2 8243 bfd_put_32 (input_bfd, B | off,
d3e454b9 8244 contents + rel->r_offset - d_offset);
ce558b89
AM
8245 got_addr = (htab->elf.sgot->output_section->vma
8246 + htab->elf.sgot->output_offset
d3e454b9 8247 + (h->got.offset & ~1));
c316a17c
AM
8248 wrel->r_offset = (p - contents) + d_offset;
8249 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8250 wrel->r_addend = got_addr;
d3e454b9 8251 insn &= ~0xffff;
4aef7643 8252 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8253 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8254
8255 /* Convert lis to lwz, loading address from GOT. */
8256 insn &= ~0xffff;
8257 insn ^= (32u ^ 15u) << 26;
8258 insn |= (insn & (0x1f << 21)) >> 5;
8259 insn |= got_addr & 0xffff;
95f0d0d2 8260 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8261
95f0d0d2 8262 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8263 picfixup_size += 12;
8264
8265 /* Use one of the spare relocs, so --emit-relocs
8266 output is reasonable. */
8267 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8268 wrel++, rel++;
8269 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8270 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8271 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8272
8273 /* Continue on as if we had a got reloc, to output
8274 dynamic reloc. */
8275 r_type = R_PPC_GOT16_LO;
8276 }
8277 else
2c4d9cbe 8278 _bfd_error_handler
695344c0 8279 /* xgettext:c-format */
e3fbc3da 8280 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8281 input_bfd, input_section, rel->r_offset,
8282 "R_PPC_ADDR16_HA", insn);
8283 }
8284 else if (r_type == R_PPC_ADDR16_LO)
8285 {
95f0d0d2 8286 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8287 contents + rel->r_offset - d_offset);
8288 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8289 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8290 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8291 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8292 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8293 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8294 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8295 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8296 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8297 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8298 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8299 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8300 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8301 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8302 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8303 && (insn & 3) != 1)
8304 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8305 && ((insn & 3) == 0 || (insn & 3) == 3)))
8306 {
8307 /* Arrange to apply the reloc addend, if any. */
8308 relocation = 0;
8309 unresolved_reloc = FALSE;
8310 rel->r_info = ELF32_R_INFO (0, r_type);
8311 }
8312 else
2c4d9cbe 8313 _bfd_error_handler
695344c0 8314 /* xgettext:c-format */
e3fbc3da 8315 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8316 input_bfd, input_section, rel->r_offset,
8317 "R_PPC_ADDR16_LO", insn);
8318 }
8319 }
8320
e054468f 8321 ifunc = NULL;
25f23106 8322 if (!htab->is_vxworks)
e054468f 8323 {
de972ffa
AM
8324 struct plt_entry *ent;
8325
e054468f
AM
8326 if (h != NULL)
8327 {
8328 if (h->type == STT_GNU_IFUNC)
8329 ifunc = &h->plt.plist;
8330 }
de972ffa
AM
8331 else if (local_got_offsets != NULL
8332 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8333 {
de972ffa 8334 struct plt_entry **local_plt;
e054468f 8335
de972ffa
AM
8336 local_plt = (struct plt_entry **) (local_got_offsets
8337 + symtab_hdr->sh_info);
8338 ifunc = local_plt + r_symndx;
e054468f 8339 }
e054468f 8340
de972ffa
AM
8341 ent = NULL;
8342 if (ifunc != NULL
0e1862bb 8343 && (!bfd_link_pic (info)
de972ffa
AM
8344 || is_branch_reloc (r_type)))
8345 {
8346 addend = 0;
0e1862bb 8347 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8348 addend = rel->r_addend;
8349 ent = find_plt_ent (ifunc, got2, addend);
8350 }
8351 if (ent != NULL)
8352 {
888a7fc3
AM
8353 if (bfd_link_pic (info)
8354 && ent->sec != got2
8355 && htab->plt_type != PLT_NEW
8356 && (!htab->elf.dynamic_sections_created
8357 || h == NULL
8358 || h->dynindx == -1))
8359 {
8360 /* Uh oh, we are going to create a pic glink stub
8361 for an ifunc (here for h == NULL and later in
8362 finish_dynamic_symbol for h != NULL), and
8363 apparently are using code compiled with
8364 -mbss-plt. The difficulty is that -mbss-plt code
8365 gives no indication via a magic PLTREL24 addend
8366 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8367 is pointing into a .got2 section (and how far
8368 into .got2). */
8369 info->callbacks->einfo
695344c0 8370 /* xgettext:c-format */
174d0a74 8371 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
888a7fc3
AM
8372 input_bfd, input_section, rel->r_offset, sym_name);
8373 }
e054468f
AM
8374 if (h == NULL && (ent->plt.offset & 1) == 0)
8375 {
8376 Elf_Internal_Rela rela;
8377 bfd_byte *loc;
8378
ce558b89
AM
8379 rela.r_offset = (htab->elf.iplt->output_section->vma
8380 + htab->elf.iplt->output_offset
e054468f
AM
8381 + ent->plt.offset);
8382 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8383 rela.r_addend = relocation;
ce558b89
AM
8384 loc = htab->elf.irelplt->contents;
8385 loc += (htab->elf.irelplt->reloc_count++
25f23106 8386 * sizeof (Elf32_External_Rela));
e054468f 8387 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
82e66161 8388 htab->local_ifunc_resolver = 1;
e054468f
AM
8389
8390 ent->plt.offset |= 1;
8391 }
8392 if (h == NULL && (ent->glink_offset & 1) == 0)
8393 {
a7f2871e
AM
8394 unsigned char *p = ((unsigned char *) htab->glink->contents
8395 + ent->glink_offset);
ce558b89 8396 write_glink_stub (ent, htab->elf.iplt, p, info);
e054468f
AM
8397 ent->glink_offset |= 1;
8398 }
8399
8400 unresolved_reloc = FALSE;
8401 if (htab->plt_type == PLT_NEW
8402 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8403 || h == NULL
8404 || h->dynindx == -1)
e054468f
AM
8405 relocation = (htab->glink->output_section->vma
8406 + htab->glink->output_offset
8407 + (ent->glink_offset & ~1));
8408 else
ce558b89
AM
8409 relocation = (htab->elf.splt->output_section->vma
8410 + htab->elf.splt->output_offset
e054468f
AM
8411 + ent->plt.offset);
8412 }
8413 }
8414
7619e7c7 8415 addend = rel->r_addend;
7619e7c7 8416 howto = NULL;
55fd94b0
AM
8417 if (r_type < R_PPC_max)
8418 howto = ppc_elf_howto_table[r_type];
9a23f96e
AM
8419
8420 switch (r_type)
8421 {
8422 default:
8423 break;
8424
8425 case R_PPC_TPREL16_HA:
8426 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8427 {
8428 bfd_byte *p = contents + (rel->r_offset & ~3);
8429 unsigned int insn = bfd_get_32 (input_bfd, p);
8430 if ((insn & ((0x3f << 26) | 0x1f << 16))
8431 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
8432 /* xgettext:c-format */
8433 info->callbacks->minfo
8434 (_("%H: warning: %s unexpected insn %#x.\n"),
8435 input_bfd, input_section, rel->r_offset, howto->name, insn);
8436 else
8437 bfd_put_32 (input_bfd, NOP, p);
8438 }
8439 break;
8440
8441 case R_PPC_TPREL16_LO:
8442 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8443 {
8444 bfd_byte *p = contents + (rel->r_offset & ~3);
8445 unsigned int insn = bfd_get_32 (input_bfd, p);
8446 insn &= ~(0x1f << 16);
8447 insn |= 2 << 16;
8448 bfd_put_32 (input_bfd, insn, p);
8449 }
8450 break;
8451 }
8452
8453 tls_type = 0;
7619e7c7 8454 switch (r_type)
252b5132
RH
8455 {
8456 default:
25f53a85 8457 info->callbacks->einfo
695344c0 8458 /* xgettext:c-format */
8de848d8 8459 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8460 input_bfd, (int) r_type, sym_name);
252b5132
RH
8461
8462 bfd_set_error (bfd_error_bad_value);
b34976b6 8463 ret = FALSE;
c316a17c 8464 goto copy_reloc;
252b5132 8465
7619e7c7
AM
8466 case R_PPC_NONE:
8467 case R_PPC_TLS:
727fc41e
AM
8468 case R_PPC_TLSGD:
8469 case R_PPC_TLSLD:
7619e7c7
AM
8470 case R_PPC_EMB_MRKREF:
8471 case R_PPC_GNU_VTINHERIT:
8472 case R_PPC_GNU_VTENTRY:
c316a17c 8473 goto copy_reloc;
7595d193 8474
7619e7c7
AM
8475 /* GOT16 relocations. Like an ADDR16 using the symbol's
8476 address in the GOT as relocation value instead of the
8477 symbol's value itself. Also, create a GOT entry for the
8478 symbol and put the symbol value there. */
8479 case R_PPC_GOT_TLSGD16:
8480 case R_PPC_GOT_TLSGD16_LO:
8481 case R_PPC_GOT_TLSGD16_HI:
8482 case R_PPC_GOT_TLSGD16_HA:
8483 tls_type = TLS_TLS | TLS_GD;
8484 goto dogot;
8485
8486 case R_PPC_GOT_TLSLD16:
8487 case R_PPC_GOT_TLSLD16_LO:
8488 case R_PPC_GOT_TLSLD16_HI:
8489 case R_PPC_GOT_TLSLD16_HA:
8490 tls_type = TLS_TLS | TLS_LD;
8491 goto dogot;
8492
8493 case R_PPC_GOT_TPREL16:
8494 case R_PPC_GOT_TPREL16_LO:
8495 case R_PPC_GOT_TPREL16_HI:
8496 case R_PPC_GOT_TPREL16_HA:
8497 tls_type = TLS_TLS | TLS_TPREL;
8498 goto dogot;
8499
8500 case R_PPC_GOT_DTPREL16:
8501 case R_PPC_GOT_DTPREL16_LO:
8502 case R_PPC_GOT_DTPREL16_HI:
8503 case R_PPC_GOT_DTPREL16_HA:
8504 tls_type = TLS_TLS | TLS_DTPREL;
8505 goto dogot;
8506
8507 case R_PPC_GOT16:
8508 case R_PPC_GOT16_LO:
8509 case R_PPC_GOT16_HI:
8510 case R_PPC_GOT16_HA:
727fc41e 8511 tls_mask = 0;
7619e7c7
AM
8512 dogot:
8513 {
8514 /* Relocation is to the entry for this symbol in the global
8515 offset table. */
8516 bfd_vma off;
8517 bfd_vma *offp;
8518 unsigned long indx;
8519
ce558b89 8520 if (htab->elf.sgot == NULL)
7619e7c7
AM
8521 abort ();
8522
8523 indx = 0;
8524 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8525 && (h == NULL
f5385ebf 8526 || !h->def_dynamic))
7619e7c7
AM
8527 offp = &htab->tlsld_got.offset;
8528 else if (h != NULL)
8529 {
f0158f44
AM
8530 if (!htab->elf.dynamic_sections_created
8531 || h->dynindx == -1
8532 || SYMBOL_REFERENCES_LOCAL (info, h)
21d68fcd 8533 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
7619e7c7
AM
8534 /* This is actually a static link, or it is a
8535 -Bsymbolic link and the symbol is defined
8536 locally, or the symbol was forced to be local
8537 because of a version file. */
8538 ;
8539 else
8540 {
8541 indx = h->dynindx;
8542 unresolved_reloc = FALSE;
8543 }
8544 offp = &h->got.offset;
8545 }
8546 else
8547 {
8548 if (local_got_offsets == NULL)
8549 abort ();
8550 offp = &local_got_offsets[r_symndx];
8551 }
8552
8553 /* The offset must always be a multiple of 4. We use the
8554 least significant bit to record whether we have already
8555 processed this entry. */
8556 off = *offp;
8557 if ((off & 1) != 0)
8558 off &= ~1;
8559 else
8560 {
70bccea4
AM
8561 unsigned int tls_m = (tls_mask
8562 & (TLS_LD | TLS_GD | TLS_DTPREL
8563 | TLS_TPREL | TLS_TPRELGD));
8564
8565 if (offp == &htab->tlsld_got.offset)
8566 tls_m = TLS_LD;
8567 else if (h == NULL
f5385ebf 8568 || !h->def_dynamic)
70bccea4
AM
8569 tls_m &= ~TLS_LD;
8570
8571 /* We might have multiple got entries for this sym.
8572 Initialize them all. */
8573 do
7619e7c7 8574 {
70bccea4
AM
8575 int tls_ty = 0;
8576
8577 if ((tls_m & TLS_LD) != 0)
7619e7c7 8578 {
70bccea4
AM
8579 tls_ty = TLS_TLS | TLS_LD;
8580 tls_m &= ~TLS_LD;
8581 }
8582 else if ((tls_m & TLS_GD) != 0)
8583 {
8584 tls_ty = TLS_TLS | TLS_GD;
8585 tls_m &= ~TLS_GD;
8586 }
8587 else if ((tls_m & TLS_DTPREL) != 0)
8588 {
8589 tls_ty = TLS_TLS | TLS_DTPREL;
8590 tls_m &= ~TLS_DTPREL;
8591 }
8592 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8593 {
8594 tls_ty = TLS_TLS | TLS_TPREL;
8595 tls_m = 0;
7619e7c7 8596 }
7619e7c7 8597
70bccea4 8598 /* Generate relocs for the dynamic linker. */
f0158f44
AM
8599 if (indx != 0
8600 || (bfd_link_pic (info)
8601 && (h == NULL
21d68fcd 8602 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
f0158f44 8603 || offp == &htab->tlsld_got.offset)))
7619e7c7 8604 {
ce558b89 8605 asection *rsec = htab->elf.srelgot;
91d6fa6a 8606 bfd_byte * loc;
91e21fb7 8607
0bed072f 8608 if (ifunc != NULL)
82e66161
AM
8609 {
8610 rsec = htab->elf.irelplt;
8611 if (indx == 0)
8612 htab->local_ifunc_resolver = 1;
8613 else if (is_static_defined (h))
8614 htab->maybe_local_ifunc_resolver = 1;
8615 }
ce558b89
AM
8616 outrel.r_offset = (htab->elf.sgot->output_section->vma
8617 + htab->elf.sgot->output_offset
70bccea4 8618 + off);
e515b051 8619 outrel.r_addend = 0;
70bccea4
AM
8620 if (tls_ty & (TLS_LD | TLS_GD))
8621 {
8622 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8623 if (tls_ty == (TLS_TLS | TLS_GD))
8624 {
25f23106
AM
8625 loc = rsec->contents;
8626 loc += (rsec->reloc_count++
70bccea4
AM
8627 * sizeof (Elf32_External_Rela));
8628 bfd_elf32_swap_reloca_out (output_bfd,
8629 &outrel, loc);
e515b051 8630 outrel.r_offset += 4;
70bccea4
AM
8631 outrel.r_info
8632 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8633 }
8634 }
8635 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8636 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8637 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8638 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8639 else if (indx != 0)
70bccea4 8640 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8641 else if (ifunc != NULL)
8642 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8643 else
8644 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8645 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8646 {
8647 outrel.r_addend += relocation;
8648 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8649 {
8650 if (htab->elf.tls_sec == NULL)
8651 outrel.r_addend = 0;
8652 else
8653 outrel.r_addend -= htab->elf.tls_sec->vma;
8654 }
e515b051 8655 }
25f23106
AM
8656 loc = rsec->contents;
8657 loc += (rsec->reloc_count++
70bccea4
AM
8658 * sizeof (Elf32_External_Rela));
8659 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8660 }
8661
70bccea4
AM
8662 /* Init the .got section contents if we're not
8663 emitting a reloc. */
8664 else
7619e7c7 8665 {
70bccea4
AM
8666 bfd_vma value = relocation;
8667
f0158f44 8668 if (tls_ty != 0)
70bccea4 8669 {
989f9879
AM
8670 if (htab->elf.tls_sec == NULL)
8671 value = 0;
8672 else
8673 {
f0158f44
AM
8674 if (tls_ty & TLS_LD)
8675 value = 0;
8676 else
8677 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
676ee2b5 8678 if (tls_ty & TLS_TPREL)
989f9879
AM
8679 value += DTP_OFFSET - TP_OFFSET;
8680 }
70bccea4 8681
f0158f44 8682 if (tls_ty & (TLS_LD | TLS_GD))
7b609f53 8683 {
95f0d0d2 8684 bfd_put_32 (input_bfd, value,
ce558b89 8685 htab->elf.sgot->contents + off + 4);
676ee2b5 8686 value = 1;
7b609f53 8687 }
70bccea4 8688 }
95f0d0d2 8689 bfd_put_32 (input_bfd, value,
ce558b89 8690 htab->elf.sgot->contents + off);
7619e7c7 8691 }
70bccea4
AM
8692
8693 off += 4;
8694 if (tls_ty & (TLS_LD | TLS_GD))
8695 off += 4;
7619e7c7 8696 }
70bccea4
AM
8697 while (tls_m != 0);
8698
8699 off = *offp;
8700 *offp = off | 1;
7619e7c7
AM
8701 }
8702
8703 if (off >= (bfd_vma) -2)
8704 abort ();
8705
70bccea4
AM
8706 if ((tls_type & TLS_TLS) != 0)
8707 {
8708 if (tls_type != (TLS_TLS | TLS_LD))
8709 {
8710 if ((tls_mask & TLS_LD) != 0
8711 && !(h == NULL
f5385ebf 8712 || !h->def_dynamic))
70bccea4
AM
8713 off += 8;
8714 if (tls_type != (TLS_TLS | TLS_GD))
8715 {
8716 if ((tls_mask & TLS_GD) != 0)
8717 off += 8;
8718 if (tls_type != (TLS_TLS | TLS_DTPREL))
8719 {
8720 if ((tls_mask & TLS_DTPREL) != 0)
8721 off += 4;
8722 }
8723 }
8724 }
8725 }
8726
d3e454b9
AM
8727 /* If here for a picfixup, we're done. */
8728 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8729 goto copy_reloc;
d3e454b9 8730
ce558b89
AM
8731 relocation = (htab->elf.sgot->output_section->vma
8732 + htab->elf.sgot->output_offset
e87d4038
AM
8733 + off
8734 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8735
8736 /* Addends on got relocations don't make much sense.
8737 x+off@got is actually x@got+off, and since the got is
8738 generated by a hash table traversal, the value in the
8739 got at entry m+n bears little relation to the entry m. */
8740 if (addend != 0)
25f53a85 8741 info->callbacks->einfo
695344c0 8742 /* xgettext:c-format */
174d0a74 8743 (_("%H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8744 input_bfd, input_section, rel->r_offset,
7b609f53 8745 howto->name,
7619e7c7
AM
8746 sym_name);
8747 }
86c95733 8748 break;
7619e7c7 8749
86c95733 8750 /* Relocations that need no special processing. */
7619e7c7 8751 case R_PPC_LOCAL24PC:
252b5132
RH
8752 /* It makes no sense to point a local relocation
8753 at a symbol not in this object. */
7b609f53 8754 if (unresolved_reloc)
252b5132 8755 {
1a72702b
AM
8756 (*info->callbacks->undefined_symbol) (info,
8757 h->root.root.string,
8758 input_bfd,
8759 input_section,
8760 rel->r_offset,
8761 TRUE);
c316a17c 8762 goto copy_reloc;
252b5132 8763 }
888a7fc3
AM
8764 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8765 {
8766 /* @local on an ifunc does not really make sense since
8767 the ifunc resolver can take you anywhere. More
8768 seriously, calls to ifuncs must go through a plt call
8769 stub, and for pic the plt call stubs uses r30 to
8770 access the PLT. The problem is that a call that is
8771 local won't have the +32k reloc addend trick marking
8772 -fPIC code, so the linker won't know whether r30 is
8773 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8774 /* xgettext:c-format */
174d0a74 8775 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
888a7fc3
AM
8776 input_bfd, input_section, rel->r_offset,
8777 h->root.root.string);
8778 }
252b5132
RH
8779 break;
8780
7619e7c7
AM
8781 case R_PPC_DTPREL16:
8782 case R_PPC_DTPREL16_LO:
8783 case R_PPC_DTPREL16_HI:
8784 case R_PPC_DTPREL16_HA:
989f9879
AM
8785 if (htab->elf.tls_sec != NULL)
8786 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8787 break;
8788
70bccea4
AM
8789 /* Relocations that may need to be propagated if this is a shared
8790 object. */
7619e7c7
AM
8791 case R_PPC_TPREL16:
8792 case R_PPC_TPREL16_LO:
8793 case R_PPC_TPREL16_HI:
8794 case R_PPC_TPREL16_HA:
766bc656
AM
8795 if (h != NULL
8796 && h->root.type == bfd_link_hash_undefweak
8797 && h->dynindx == -1)
8798 {
8799 /* Make this relocation against an undefined weak symbol
8800 resolve to zero. This is really just a tweak, since
8801 code using weak externs ought to check that they are
8802 defined before using them. */
8803 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 8804 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
8805 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8806 if (insn != 0)
95f0d0d2 8807 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
8808 break;
8809 }
989f9879
AM
8810 if (htab->elf.tls_sec != NULL)
8811 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7 8812 /* The TPREL16 relocs shouldn't really be used in shared
7c8bbca5
AM
8813 libs or with non-local symbols as that will result in
8814 DT_TEXTREL being set, but support them anyway. */
7619e7c7
AM
8815 goto dodyn;
8816
8817 case R_PPC_TPREL32:
989f9879
AM
8818 if (htab->elf.tls_sec != NULL)
8819 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8820 goto dodyn;
8821
8822 case R_PPC_DTPREL32:
989f9879
AM
8823 if (htab->elf.tls_sec != NULL)
8824 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8825 goto dodyn;
8826
e515b051
AM
8827 case R_PPC_DTPMOD32:
8828 relocation = 1;
8829 addend = 0;
8830 goto dodyn;
8831
d7128ce4
AM
8832 case R_PPC_REL16:
8833 case R_PPC_REL16_LO:
8834 case R_PPC_REL16_HI:
8835 case R_PPC_REL16_HA:
a680de9a 8836 case R_PPC_REL16DX_HA:
d7128ce4
AM
8837 break;
8838
7619e7c7 8839 case R_PPC_REL32:
625af618
AM
8840 if (h == NULL || h == htab->elf.hgot)
8841 break;
8842 /* fall through */
8843
8844 case R_PPC_ADDR32:
8845 case R_PPC_ADDR16:
8846 case R_PPC_ADDR16_LO:
8847 case R_PPC_ADDR16_HI:
8848 case R_PPC_ADDR16_HA:
8849 case R_PPC_UADDR32:
8850 case R_PPC_UADDR16:
8851 goto dodyn;
8852
b9c361e0
JL
8853 case R_PPC_VLE_REL8:
8854 case R_PPC_VLE_REL15:
8855 case R_PPC_VLE_REL24:
625af618 8856 case R_PPC_REL24:
7619e7c7
AM
8857 case R_PPC_REL14:
8858 case R_PPC_REL14_BRTAKEN:
8859 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8860 /* If these relocations are not to a named symbol, they can be
8861 handled right here, no need to bother the dynamic linker. */
89200bf8 8862 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8863 || h == htab->elf.hgot)
252b5132 8864 break;
70bccea4 8865 /* fall through */
252b5132 8866
7619e7c7 8867 case R_PPC_ADDR24:
7619e7c7
AM
8868 case R_PPC_ADDR14:
8869 case R_PPC_ADDR14_BRTAKEN:
8870 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8871 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8872 break;
8873 /* fall through */
8874
7619e7c7 8875 dodyn:
3348747a
NS
8876 if ((input_section->flags & SEC_ALLOC) == 0
8877 || is_vxworks_tls)
c87b5a93 8878 break;
c87b5a93 8879
0e1862bb 8880 if ((bfd_link_pic (info)
89200bf8
AM
8881 && !(h != NULL
8882 && ((h->root.type == bfd_link_hash_undefined
954b63d4 8883 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
21d68fcd 8884 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1d483afe 8885 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8886 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8887 || (ELIMINATE_COPY_RELOCS
0e1862bb 8888 && !bfd_link_pic (info)
ee05f2fe
AM
8889 && h != NULL
8890 && h->dynindx != -1
f5385ebf 8891 && !h->non_got_ref
d3e454b9
AM
8892 && !h->def_regular
8893 && !(h->protected_def
8894 && ppc_elf_hash_entry (h)->has_addr16_ha
8895 && ppc_elf_hash_entry (h)->has_addr16_lo
8896 && htab->params->pic_fixup > 0)))
252b5132 8897 {
0bb2d96a 8898 int skip;
f95f8542
AM
8899 bfd_byte *loc;
8900 asection *sreloc;
82e66161
AM
8901 long indx = 0;
8902
252b5132 8903#ifdef DEBUG
55fd94b0
AM
8904 fprintf (stderr, "ppc_elf_relocate_section needs to "
8905 "create relocation for %s\n",
70bccea4
AM
8906 (h && h->root.root.string
8907 ? h->root.root.string : "<unknown>"));
252b5132
RH
8908#endif
8909
8910 /* When generating a shared object, these relocations
70bccea4
AM
8911 are copied into the output file to be resolved at run
8912 time. */
0bb2d96a 8913 skip = 0;
5b914448
AM
8914 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8915 input_section,
8916 rel->r_offset);
0bb2d96a
JJ
8917 if (outrel.r_offset == (bfd_vma) -1
8918 || outrel.r_offset == (bfd_vma) -2)
8919 skip = (int) outrel.r_offset;
252b5132
RH
8920 outrel.r_offset += (input_section->output_section->vma
8921 + input_section->output_offset);
8922
8923 if (skip)
8924 memset (&outrel, 0, sizeof outrel);
21d68fcd 8925 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8926 {
82e66161
AM
8927 indx = h->dynindx;
8928 BFD_ASSERT (indx != -1);
7619e7c7 8929 unresolved_reloc = FALSE;
82e66161 8930 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
8931 outrel.r_addend = rel->r_addend;
8932 }
8933 else
8934 {
47388f4c
AM
8935 outrel.r_addend = relocation + rel->r_addend;
8936
25f23106 8937 if (r_type != R_PPC_ADDR32)
252b5132 8938 {
25f23106
AM
8939 if (ifunc != NULL)
8940 {
8941 /* If we get here when building a static
8942 executable, then the libc startup function
8943 responsible for applying indirect function
8944 relocations is going to complain about
8945 the reloc type.
8946 If we get here when building a dynamic
8947 executable, it will be because we have
8948 a text relocation. The dynamic loader
8949 will set the text segment writable and
8950 non-executable to apply text relocations.
8951 So we'll segfault when trying to run the
8952 indirection function to resolve the reloc. */
25f53a85 8953 info->callbacks->einfo
695344c0 8954 /* xgettext:c-format */
174d0a74 8955 (_("%H: relocation %s for indirect "
25f53a85
AM
8956 "function %s unsupported\n"),
8957 input_bfd, input_section, rel->r_offset,
25f23106
AM
8958 howto->name,
8959 sym_name);
8960 ret = FALSE;
8961 }
cf35638d 8962 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8963 ;
252b5132
RH
8964 else if (sec == NULL || sec->owner == NULL)
8965 {
8966 bfd_set_error (bfd_error_bad_value);
89200bf8 8967 ret = FALSE;
252b5132
RH
8968 }
8969 else
8970 {
8971 asection *osec;
8972
47388f4c
AM
8973 /* We are turning this relocation into one
8974 against a section symbol. It would be
8975 proper to subtract the symbol's value,
8976 osec->vma, from the emitted reloc addend,
25f23106
AM
8977 but ld.so expects buggy relocs.
8978 FIXME: Why not always use a zero index? */
252b5132
RH
8979 osec = sec->output_section;
8980 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8981 if (indx == 0)
8982 {
8983 osec = htab->elf.text_index_section;
8984 indx = elf_section_data (osec)->dynindx;
8985 }
8986 BFD_ASSERT (indx != 0);
252b5132 8987#ifdef DEBUG
74541ad4 8988 if (indx == 0)
e460dd0d 8989 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8990 indx, osec->name, osec->flags,
8991 h->root.root.string);
252b5132
RH
8992#endif
8993 }
8994
8995 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8996 }
25f23106
AM
8997 else if (ifunc != NULL)
8998 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8999 else
9000 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
9001 }
9002
82e66161
AM
9003 sreloc = elf_section_data (input_section)->sreloc;
9004 if (ifunc)
9005 {
9006 sreloc = htab->elf.irelplt;
9007 if (indx == 0)
9008 htab->local_ifunc_resolver = 1;
9009 else if (is_static_defined (h))
9010 htab->maybe_local_ifunc_resolver = 1;
9011 }
9012 if (sreloc == NULL)
9013 return FALSE;
9014
947216bf
AM
9015 loc = sreloc->contents;
9016 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
9017 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 9018
2243deae 9019 if (skip == -1)
c316a17c 9020 goto copy_reloc;
2243deae 9021
f0158f44
AM
9022 /* This reloc will be computed at runtime. Clear the memory
9023 so that it contains a predictable value for prelink. */
9024 if (!skip)
2243deae
L
9025 {
9026 relocation = howto->pc_relative ? outrel.r_offset : 0;
9027 addend = 0;
9028 break;
9029 }
252b5132 9030 }
252b5132
RH
9031 break;
9032
32af9f6e
AM
9033 case R_PPC_RELAX_PLT:
9034 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
9035 if (h != NULL)
9036 {
32af9f6e
AM
9037 struct plt_entry *ent;
9038 bfd_vma got2_addend = 0;
9039
9040 if (r_type == R_PPC_RELAX_PLTREL24)
9041 {
0e1862bb 9042 if (bfd_link_pic (info))
32af9f6e
AM
9043 got2_addend = addend;
9044 addend = 0;
9045 }
9046 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
9047 if (htab->plt_type == PLT_NEW)
9048 relocation = (htab->glink->output_section->vma
9049 + htab->glink->output_offset
9050 + ent->glink_offset);
9051 else
ce558b89
AM
9052 relocation = (htab->elf.splt->output_section->vma
9053 + htab->elf.splt->output_offset
de972ffa
AM
9054 + ent->plt.offset);
9055 }
1a0670f3 9056 /* Fall through. */
b4a38de6 9057
32af9f6e 9058 case R_PPC_RELAX:
9abc968f 9059 {
53291d1f
AM
9060 const int *stub;
9061 size_t size;
9062 size_t insn_offset = rel->r_offset;
9063 unsigned int insn;
9abc968f 9064
0e1862bb 9065 if (bfd_link_pic (info))
53291d1f
AM
9066 {
9067 relocation -= (input_section->output_section->vma
9068 + input_section->output_offset
9069 + rel->r_offset - 4);
9070 stub = shared_stub_entry;
95f0d0d2
AM
9071 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
9072 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
9073 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
9074 stub += 3;
9075 size = ARRAY_SIZE (shared_stub_entry) - 3;
9076 }
9077 else
9078 {
9079 stub = stub_entry;
9080 size = ARRAY_SIZE (stub_entry);
9081 }
9abc968f 9082
9abc968f 9083 relocation += addend;
0e1862bb 9084 if (bfd_link_relocatable (info))
53291d1f
AM
9085 relocation = 0;
9086
9087 /* First insn is HA, second is LO. */
9088 insn = *stub++;
9089 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 9090 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9091 insn_offset += 4;
9092
9093 insn = *stub++;
9094 insn |= relocation & 0xffff;
95f0d0d2 9095 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9096 insn_offset += 4;
9097 size -= 2;
9098
9099 while (size != 0)
9100 {
9101 insn = *stub++;
9102 --size;
95f0d0d2 9103 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
9104 insn_offset += 4;
9105 }
9bc4e62b
NS
9106
9107 /* Rewrite the reloc and convert one of the trailing nop
9108 relocs to describe this relocation. */
9109 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
9110 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
9111 wrel->r_offset = rel->r_offset + d_offset;
9112 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
9113 wrel->r_addend = rel->r_addend;
9114 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
9115 wrel++, rel++;
9116 wrel->r_offset += 4;
9117 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 9118 }
8517fae7 9119 continue;
deaaf2f3 9120
70bccea4 9121 /* Indirect .sdata relocation. */
7619e7c7 9122 case R_PPC_EMB_SDAI16:
c9a2f333 9123 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
9124 if (!is_static_defined (htab->sdata[0].sym))
9125 {
9126 unresolved_reloc = TRUE;
9127 break;
9128 }
7619e7c7 9129 relocation
76750a2f
AM
9130 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
9131 h, relocation, rel);
bd6c6e2b 9132 addend = 0;
252b5132
RH
9133 break;
9134
70bccea4 9135 /* Indirect .sdata2 relocation. */
7619e7c7 9136 case R_PPC_EMB_SDA2I16:
c9a2f333 9137 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
9138 if (!is_static_defined (htab->sdata[1].sym))
9139 {
9140 unresolved_reloc = TRUE;
9141 break;
9142 }
7619e7c7 9143 relocation
76750a2f
AM
9144 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
9145 h, relocation, rel);
bd6c6e2b 9146 addend = 0;
252b5132
RH
9147 break;
9148
70bccea4
AM
9149 /* Handle the TOC16 reloc. We want to use the offset within the .got
9150 section, not the actual VMA. This is appropriate when generating
9151 an embedded ELF object, for which the .got section acts like the
9152 AIX .toc section. */
7619e7c7 9153 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
9154 if (sec == NULL || sec->output_section == NULL)
9155 {
9156 unresolved_reloc = TRUE;
9157 break;
9158 }
a0f49396
NC
9159 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
9160 ".got") == 0
9161 || strcmp (bfd_get_section_name (sec->owner, sec),
9162 ".cgot") == 0);
252b5132 9163
3b4f3a11 9164 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
9165 break;
9166
7619e7c7 9167 case R_PPC_PLTREL24:
f75e0e33
AM
9168 if (h != NULL && ifunc == NULL)
9169 {
cbf95972
AM
9170 struct plt_entry *ent;
9171
9172 ent = find_plt_ent (&h->plt.plist, got2,
9173 bfd_link_pic (info) ? addend : 0);
f75e0e33 9174 if (ent == NULL
ce558b89 9175 || htab->elf.splt == NULL)
f75e0e33
AM
9176 {
9177 /* We didn't make a PLT entry for this symbol. This
9178 happens when statically linking PIC code, or when
9179 using -Bsymbolic. */
9180 }
9181 else
9182 {
9183 /* Relocation is to the entry for this symbol in the
9184 procedure linkage table. */
9185 unresolved_reloc = FALSE;
9186 if (htab->plt_type == PLT_NEW)
9187 relocation = (htab->glink->output_section->vma
9188 + htab->glink->output_offset
9189 + ent->glink_offset);
9190 else
ce558b89
AM
9191 relocation = (htab->elf.splt->output_section->vma
9192 + htab->elf.splt->output_offset
f75e0e33
AM
9193 + ent->plt.offset);
9194 }
9195 }
252b5132 9196
f75e0e33
AM
9197 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9198 addend specifies the GOT pointer offset within .got2.
9199 Don't apply it to the relocation field. */
9200 addend = 0;
8da6118f 9201 break;
252b5132 9202
70bccea4 9203 /* Relocate against _SDA_BASE_. */
7619e7c7 9204 case R_PPC_SDAREL16:
252b5132
RH
9205 {
9206 const char *name;
bd6c6e2b 9207 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9208
bd6c6e2b
AM
9209 if (sec == NULL
9210 || sec->output_section == NULL
9211 || !is_static_defined (sda))
3b4f3a11
AM
9212 {
9213 unresolved_reloc = TRUE;
9214 break;
9215 }
bd6c6e2b 9216 addend -= SYM_VAL (sda);
3b4f3a11 9217
a0f49396 9218 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9219 if (!(strcmp (name, ".sdata") == 0
9220 || strcmp (name, ".sbss") == 0))
252b5132 9221 {
25f53a85 9222 info->callbacks->einfo
695344c0 9223 /* xgettext:c-format */
8de848d8 9224 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9225 "in the wrong output section (%s)\n"),
d003868e 9226 input_bfd,
55fd94b0
AM
9227 sym_name,
9228 howto->name,
9229 name);
252b5132 9230 }
252b5132
RH
9231 }
9232 break;
9233
70bccea4 9234 /* Relocate against _SDA2_BASE_. */
7619e7c7 9235 case R_PPC_EMB_SDA2REL:
252b5132
RH
9236 {
9237 const char *name;
bd6c6e2b 9238 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9239
bd6c6e2b
AM
9240 if (sec == NULL
9241 || sec->output_section == NULL
9242 || !is_static_defined (sda))
3b4f3a11
AM
9243 {
9244 unresolved_reloc = TRUE;
9245 break;
9246 }
bd6c6e2b 9247 addend -= SYM_VAL (sda);
3b4f3a11 9248
a0f49396 9249 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9250 if (!(strcmp (name, ".sdata2") == 0
9251 || strcmp (name, ".sbss2") == 0))
252b5132 9252 {
25f53a85 9253 info->callbacks->einfo
695344c0 9254 /* xgettext:c-format */
8de848d8 9255 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9256 "in the wrong output section (%s)\n"),
d003868e 9257 input_bfd,
55fd94b0
AM
9258 sym_name,
9259 howto->name,
9260 name);
252b5132 9261 }
252b5132
RH
9262 }
9263 break;
9264
b9c361e0 9265 case R_PPC_VLE_LO16A:
86c95733 9266 relocation = relocation + addend;
08dc996f
AM
9267 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9268 contents + rel->r_offset, relocation,
9269 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9270 goto copy_reloc;
b9c361e0
JL
9271
9272 case R_PPC_VLE_LO16D:
86c95733 9273 relocation = relocation + addend;
08dc996f
AM
9274 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9275 contents + rel->r_offset, relocation,
9276 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9277 goto copy_reloc;
b9c361e0
JL
9278
9279 case R_PPC_VLE_HI16A:
86c95733 9280 relocation = (relocation + addend) >> 16;
08dc996f
AM
9281 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9282 contents + rel->r_offset, relocation,
9283 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9284 goto copy_reloc;
b9c361e0
JL
9285
9286 case R_PPC_VLE_HI16D:
86c95733 9287 relocation = (relocation + addend) >> 16;
08dc996f
AM
9288 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9289 contents + rel->r_offset, relocation,
9290 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9291 goto copy_reloc;
b9c361e0
JL
9292
9293 case R_PPC_VLE_HA16A:
86c95733 9294 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9295 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9296 contents + rel->r_offset, relocation,
9297 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9298 goto copy_reloc;
b9c361e0
JL
9299
9300 case R_PPC_VLE_HA16D:
86c95733 9301 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9302 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9303 contents + rel->r_offset, relocation,
9304 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9305 goto copy_reloc;
b9c361e0 9306
70bccea4 9307 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9308 case R_PPC_EMB_SDA21:
b9c361e0 9309 case R_PPC_VLE_SDA21:
7619e7c7 9310 case R_PPC_EMB_RELSDA:
b9c361e0 9311 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9312 {
9313 const char *name;
9314 int reg;
86c95733 9315 unsigned int insn;
bd6c6e2b 9316 struct elf_link_hash_entry *sda = NULL;
252b5132 9317
3b4f3a11
AM
9318 if (sec == NULL || sec->output_section == NULL)
9319 {
9320 unresolved_reloc = TRUE;
9321 break;
9322 }
9323
a0f49396 9324 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9325 if (strcmp (name, ".sdata") == 0
9326 || strcmp (name, ".sbss") == 0)
252b5132
RH
9327 {
9328 reg = 13;
bd6c6e2b 9329 sda = htab->sdata[0].sym;
252b5132 9330 }
93d1b056
AM
9331 else if (strcmp (name, ".sdata2") == 0
9332 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9333 {
9334 reg = 2;
bd6c6e2b 9335 sda = htab->sdata[1].sym;
252b5132 9336 }
8da6118f
KH
9337 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9338 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9339 {
9340 reg = 0;
9341 }
252b5132
RH
9342 else
9343 {
25f53a85 9344 info->callbacks->einfo
695344c0 9345 /* xgettext:c-format */
8de848d8 9346 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9347 "in the wrong output section (%s)\n"),
d003868e 9348 input_bfd,
55fd94b0
AM
9349 sym_name,
9350 howto->name,
9351 name);
252b5132
RH
9352
9353 bfd_set_error (bfd_error_bad_value);
b34976b6 9354 ret = FALSE;
c316a17c 9355 goto copy_reloc;
252b5132
RH
9356 }
9357
bd6c6e2b
AM
9358 if (sda != NULL)
9359 {
9360 if (!is_static_defined (sda))
9361 {
9362 unresolved_reloc = TRUE;
9363 break;
9364 }
9365 addend -= SYM_VAL (sda);
9366 }
9367
95f0d0d2 9368 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9369 if (reg == 0
9370 && (r_type == R_PPC_VLE_SDA21
9371 || r_type == R_PPC_VLE_SDA21_LO))
9372 {
86c95733
AM
9373 relocation = relocation + addend;
9374 addend = 0;
9375
9376 /* Force e_li insn, keeping RT from original insn. */
9377 insn &= 0x1f << 21;
9378 insn |= 28u << 26;
9379
9380 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9381 /* Top 4 bits of value to 17..20. */
9382 insn |= (relocation & 0xf0000) >> 5;
9383 /* Next 5 bits of the value to 11..15. */
9384 insn |= (relocation & 0xf800) << 5;
9385 /* And the final 11 bits of the value to bits 21 to 31. */
9386 insn |= relocation & 0x7ff;
9387
95f0d0d2 9388 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9389
9390 if (r_type == R_PPC_VLE_SDA21
9391 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9392 goto overflow;
c316a17c 9393 goto copy_reloc;
b9c361e0
JL
9394 }
9395 else if (r_type == R_PPC_EMB_SDA21
9396 || r_type == R_PPC_VLE_SDA21
9397 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9398 {
86c95733 9399 /* Fill in register field. */
252b5132 9400 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9401 }
95f0d0d2 9402 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9403 }
9404 break;
9405
b9c361e0
JL
9406 case R_PPC_VLE_SDAREL_LO16A:
9407 case R_PPC_VLE_SDAREL_LO16D:
9408 case R_PPC_VLE_SDAREL_HI16A:
9409 case R_PPC_VLE_SDAREL_HI16D:
9410 case R_PPC_VLE_SDAREL_HA16A:
9411 case R_PPC_VLE_SDAREL_HA16D:
9412 {
9413 bfd_vma value;
9414 const char *name;
b9c361e0
JL
9415 struct elf_link_hash_entry *sda = NULL;
9416
9417 if (sec == NULL || sec->output_section == NULL)
9418 {
9419 unresolved_reloc = TRUE;
9420 break;
9421 }
9422
a0f49396 9423 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9424 if (strcmp (name, ".sdata") == 0
9425 || strcmp (name, ".sbss") == 0)
5499c7c7 9426 sda = htab->sdata[0].sym;
93d1b056
AM
9427 else if (strcmp (name, ".sdata2") == 0
9428 || strcmp (name, ".sbss2") == 0)
5499c7c7 9429 sda = htab->sdata[1].sym;
b9c361e0
JL
9430 else
9431 {
4eca0228 9432 _bfd_error_handler
695344c0 9433 /* xgettext:c-format */
b9c361e0
JL
9434 (_("%B: the target (%s) of a %s relocation is "
9435 "in the wrong output section (%s)"),
9436 input_bfd,
9437 sym_name,
9438 howto->name,
9439 name);
9440
9441 bfd_set_error (bfd_error_bad_value);
9442 ret = FALSE;
c316a17c 9443 goto copy_reloc;
b9c361e0
JL
9444 }
9445
5499c7c7 9446 if (sda == NULL || !is_static_defined (sda))
b9c361e0 9447 {
5499c7c7
AM
9448 unresolved_reloc = TRUE;
9449 break;
b9c361e0 9450 }
5499c7c7 9451 value = relocation + addend - SYM_VAL (sda);
86c95733
AM
9452
9453 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9454 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9455 contents + rel->r_offset, value,
9456 split16a_type,
9457 htab->params->vle_reloc_fixup);
86c95733 9458 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9459 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9460 contents + rel->r_offset, value,
9461 split16d_type,
9462 htab->params->vle_reloc_fixup);
86c95733 9463 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9464 {
86c95733 9465 value = value >> 16;
08dc996f
AM
9466 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9467 contents + rel->r_offset, value,
9468 split16a_type,
9469 htab->params->vle_reloc_fixup);
b9c361e0 9470 }
86c95733 9471 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9472 {
86c95733 9473 value = value >> 16;
08dc996f
AM
9474 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9475 contents + rel->r_offset, value,
9476 split16d_type,
9477 htab->params->vle_reloc_fixup);
b9c361e0 9478 }
86c95733 9479 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9480 {
86c95733 9481 value = (value + 0x8000) >> 16;
08dc996f
AM
9482 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9483 contents + rel->r_offset, value,
9484 split16a_type,
9485 htab->params->vle_reloc_fixup);
b9c361e0 9486 }
86c95733 9487 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9488 {
86c95733 9489 value = (value + 0x8000) >> 16;
08dc996f
AM
9490 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9491 contents + rel->r_offset, value,
9492 split16d_type,
9493 htab->params->vle_reloc_fixup);
b9c361e0
JL
9494 }
9495 }
c316a17c 9496 goto copy_reloc;
b9c361e0 9497
83eef883
AFB
9498 case R_PPC_VLE_ADDR20:
9499 ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
9500 continue;
9501
70bccea4 9502 /* Relocate against the beginning of the section. */
7619e7c7
AM
9503 case R_PPC_SECTOFF:
9504 case R_PPC_SECTOFF_LO:
9505 case R_PPC_SECTOFF_HI:
9506 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9507 if (sec == NULL || sec->output_section == NULL)
9508 {
9509 unresolved_reloc = TRUE;
9510 break;
9511 }
252b5132 9512 addend -= sec->output_section->vma;
252b5132
RH
9513 break;
9514
70bccea4 9515 /* Negative relocations. */
7619e7c7
AM
9516 case R_PPC_EMB_NADDR32:
9517 case R_PPC_EMB_NADDR16:
9518 case R_PPC_EMB_NADDR16_LO:
9519 case R_PPC_EMB_NADDR16_HI:
9520 case R_PPC_EMB_NADDR16_HA:
8da6118f 9521 addend -= 2 * relocation;
252b5132
RH
9522 break;
9523
7619e7c7
AM
9524 case R_PPC_COPY:
9525 case R_PPC_GLOB_DAT:
9526 case R_PPC_JMP_SLOT:
9527 case R_PPC_RELATIVE:
e054468f 9528 case R_PPC_IRELATIVE:
7619e7c7
AM
9529 case R_PPC_PLT32:
9530 case R_PPC_PLTREL32:
9531 case R_PPC_PLT16_LO:
9532 case R_PPC_PLT16_HI:
9533 case R_PPC_PLT16_HA:
9534 case R_PPC_ADDR30:
9535 case R_PPC_EMB_RELSEC16:
9536 case R_PPC_EMB_RELST_LO:
9537 case R_PPC_EMB_RELST_HI:
9538 case R_PPC_EMB_RELST_HA:
9539 case R_PPC_EMB_BIT_FLD:
25f53a85 9540 info->callbacks->einfo
695344c0 9541 /* xgettext:c-format */
8de848d8 9542 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9543 input_bfd,
7619e7c7
AM
9544 howto->name,
9545 sym_name);
252b5132
RH
9546
9547 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9548 ret = FALSE;
c316a17c 9549 goto copy_reloc;
7619e7c7 9550 }
252b5132 9551
7619e7c7
AM
9552 /* Do any further special processing. */
9553 switch (r_type)
9554 {
9555 default:
9556 break;
9557
9558 case R_PPC_ADDR16_HA:
d7128ce4 9559 case R_PPC_REL16_HA:
a680de9a 9560 case R_PPC_REL16DX_HA:
7619e7c7
AM
9561 case R_PPC_SECTOFF_HA:
9562 case R_PPC_TPREL16_HA:
9563 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9564 case R_PPC_EMB_NADDR16_HA:
9565 case R_PPC_EMB_RELST_HA:
9566 /* It's just possible that this symbol is a weak symbol
7b609f53 9567 that's not actually defined anywhere. In that case,
7619e7c7
AM
9568 'sec' would be NULL, and we should leave the symbol
9569 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9570 if (sec == NULL)
9571 break;
1a0670f3 9572 /* Fall through. */
5c5f6e17
AM
9573
9574 case R_PPC_PLT16_HA:
9575 case R_PPC_GOT16_HA:
9576 case R_PPC_GOT_TLSGD16_HA:
9577 case R_PPC_GOT_TLSLD16_HA:
9578 case R_PPC_GOT_TPREL16_HA:
9579 case R_PPC_GOT_DTPREL16_HA:
9580 /* Add 0x10000 if sign bit in 0:15 is set.
9581 Bits 0:15 are not used. */
9582 addend += 0x8000;
7619e7c7 9583 break;
1fe532cf
AM
9584
9585 case R_PPC_ADDR16:
9586 case R_PPC_ADDR16_LO:
9587 case R_PPC_GOT16:
9588 case R_PPC_GOT16_LO:
9589 case R_PPC_SDAREL16:
9590 case R_PPC_SECTOFF:
9591 case R_PPC_SECTOFF_LO:
9592 case R_PPC_DTPREL16:
9593 case R_PPC_DTPREL16_LO:
9594 case R_PPC_TPREL16:
9595 case R_PPC_TPREL16_LO:
9596 case R_PPC_GOT_TLSGD16:
9597 case R_PPC_GOT_TLSGD16_LO:
9598 case R_PPC_GOT_TLSLD16:
9599 case R_PPC_GOT_TLSLD16_LO:
9600 case R_PPC_GOT_DTPREL16:
9601 case R_PPC_GOT_DTPREL16_LO:
9602 case R_PPC_GOT_TPREL16:
9603 case R_PPC_GOT_TPREL16_LO:
9604 {
9605 /* The 32-bit ABI lacks proper relocations to deal with
9606 certain 64-bit instructions. Prevent damage to bits
9607 that make up part of the insn opcode. */
9608 unsigned int insn, mask, lobit;
9609
95f0d0d2 9610 insn = bfd_get_32 (input_bfd,
c316a17c 9611 contents + rel->r_offset - d_offset);
1fe532cf
AM
9612 mask = 0;
9613 if (is_insn_ds_form (insn))
9614 mask = 3;
9615 else if (is_insn_dq_form (insn))
9616 mask = 15;
9617 else
9618 break;
a680de9a
PB
9619 relocation += addend;
9620 addend = insn & mask;
9621 lobit = mask & relocation;
1fe532cf
AM
9622 if (lobit != 0)
9623 {
a680de9a 9624 relocation ^= lobit;
1fe532cf 9625 info->callbacks->einfo
695344c0 9626 /* xgettext:c-format */
174d0a74 9627 (_("%H: error: %s against `%s' not a multiple of %u\n"),
1fe532cf
AM
9628 input_bfd, input_section, rel->r_offset,
9629 howto->name, sym_name, mask + 1);
9630 bfd_set_error (bfd_error_bad_value);
9631 ret = FALSE;
9632 }
1fe532cf
AM
9633 }
9634 break;
252b5132
RH
9635 }
9636
252b5132 9637#ifdef DEBUG
55fd94b0
AM
9638 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9639 "offset = %ld, addend = %ld\n",
252b5132 9640 howto->name,
8da6118f 9641 (int) r_type,
252b5132
RH
9642 sym_name,
9643 r_symndx,
7619e7c7 9644 (long) rel->r_offset,
8da6118f 9645 (long) addend);
252b5132
RH
9646#endif
9647
7619e7c7
AM
9648 if (unresolved_reloc
9649 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9650 && h->def_dynamic)
9651 && _bfd_elf_section_offset (output_bfd, info, input_section,
9652 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9653 {
25f53a85 9654 info->callbacks->einfo
695344c0 9655 /* xgettext:c-format */
174d0a74 9656 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9657 input_bfd, input_section, rel->r_offset,
7b609f53 9658 howto->name,
7619e7c7
AM
9659 sym_name);
9660 ret = FALSE;
9661 }
9662
86c95733
AM
9663 /* 16-bit fields in insns mostly have signed values, but a
9664 few insns have 16-bit unsigned values. Really, we should
9665 have different reloc types. */
9666 if (howto->complain_on_overflow != complain_overflow_dont
9667 && howto->dst_mask == 0xffff
9668 && (input_section->flags & SEC_CODE) != 0)
9669 {
9670 enum complain_overflow complain = complain_overflow_signed;
9671
9672 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9673 {
9674 unsigned int insn;
9675
9676 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9677 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9678 complain = complain_overflow_bitfield;
9679 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9680 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9681 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9682 complain = complain_overflow_unsigned;
9683 }
9684 if (howto->complain_on_overflow != complain)
9685 {
9686 alt_howto = *howto;
9687 alt_howto.complain_on_overflow = complain;
9688 howto = &alt_howto;
9689 }
9690 }
9691
a680de9a
PB
9692 if (r_type == R_PPC_REL16DX_HA)
9693 {
9694 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9695 if (rel->r_offset + 4 > input_section->size)
9696 r = bfd_reloc_outofrange;
9697 else
9698 {
9699 unsigned int insn;
9700
9701 relocation += addend;
9702 relocation -= (rel->r_offset
9703 + input_section->output_offset
9704 + input_section->output_section->vma);
9705 relocation >>= 16;
9706 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9707 insn &= ~0x1fffc1;
9708 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9709 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9710 r = bfd_reloc_ok;
9711 }
9712 }
9713 else
9714 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9715 rel->r_offset, relocation, addend);
252b5132 9716
7619e7c7 9717 if (r != bfd_reloc_ok)
252b5132 9718 {
7619e7c7 9719 if (r == bfd_reloc_overflow)
252b5132 9720 {
c3301df1 9721 overflow:
8131c122
AM
9722 /* On code like "if (foo) foo();" don't report overflow
9723 on a branch to zero when foo is undefined. */
9724 if (!warned
9725 && !(h != NULL
9726 && (h->root.type == bfd_link_hash_undefweak
9727 || h->root.type == bfd_link_hash_undefined)
9728 && is_branch_reloc (r_type)))
1a72702b
AM
9729 info->callbacks->reloc_overflow
9730 (info, (h ? &h->root : NULL), sym_name, howto->name,
9731 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9732 }
9733 else
9734 {
25f53a85 9735 info->callbacks->einfo
695344c0 9736 /* xgettext:c-format */
174d0a74 9737 (_("%H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9738 input_bfd, input_section, rel->r_offset,
9739 howto->name, sym_name, (int) r);
7619e7c7 9740 ret = FALSE;
252b5132
RH
9741 }
9742 }
c316a17c
AM
9743 copy_reloc:
9744 if (wrel != rel)
9745 *wrel = *rel;
9746 }
9747
9748 if (wrel != rel)
9749 {
9750 Elf_Internal_Shdr *rel_hdr;
9751 size_t deleted = rel - wrel;
9752
9753 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9754 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9755 if (rel_hdr->sh_size == 0)
9756 {
9757 /* It is too late to remove an empty reloc section. Leave
9758 one NONE reloc.
9759 ??? What is wrong with an empty section??? */
9760 rel_hdr->sh_size = rel_hdr->sh_entsize;
9761 deleted -= 1;
9762 wrel++;
9763 }
9764 relend = wrel;
9765 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9766 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9767 input_section->reloc_count -= deleted;
252b5132
RH
9768 }
9769
252b5132
RH
9770#ifdef DEBUG
9771 fprintf (stderr, "\n");
9772#endif
9773
53291d1f
AM
9774 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9775 && input_section->size != input_section->rawsize
9776 && (strcmp (input_section->output_section->name, ".init") == 0
9777 || strcmp (input_section->output_section->name, ".fini") == 0))
9778 {
9779 /* Branch around the trampolines. */
9780 unsigned int insn = B + input_section->size - input_section->rawsize;
9781 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9782 }
9783
5446cbdf 9784 if (htab->params->ppc476_workaround
795bc6b3 9785 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9786 && (!bfd_link_relocatable (info)
795bc6b3
AM
9787 || (input_section->output_section->alignment_power
9788 >= htab->params->pagesize_p2)))
5446cbdf 9789 {
5446cbdf 9790 bfd_vma start_addr, end_addr, addr;
795bc6b3 9791 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9792
5446cbdf 9793 if (relax_info->workaround_size != 0)
40fd06d1
AM
9794 {
9795 bfd_byte *p;
9796 unsigned int n;
9797 bfd_byte fill[4];
9798
9799 bfd_put_32 (input_bfd, BA, fill);
9800 p = contents + input_section->size - relax_info->workaround_size;
9801 n = relax_info->workaround_size >> 2;
9802 while (n--)
9803 {
9804 memcpy (p, fill, 4);
9805 p += 4;
9806 }
9807 }
5446cbdf
AM
9808
9809 /* The idea is: Replace the last instruction on a page with a
9810 branch to a patch area. Put the insn there followed by a
9811 branch back to the next page. Complicated a little by
9812 needing to handle moved conditional branches, and by not
9813 wanting to touch data-in-text. */
9814
9815 start_addr = (input_section->output_section->vma
9816 + input_section->output_offset);
9817 end_addr = (start_addr + input_section->size
9818 - relax_info->workaround_size);
9819 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9820 addr < end_addr;
9821 addr += pagesize)
9822 {
9823 bfd_vma offset = addr - start_addr;
9824 Elf_Internal_Rela *lo, *hi;
9825 bfd_boolean is_data;
9826 bfd_vma patch_off, patch_addr;
9827 unsigned int insn;
9828
9829 /* Do we have a data reloc at this offset? If so, leave
9830 the word alone. */
9831 is_data = FALSE;
9832 lo = relocs;
668e22e5
AM
9833 hi = relend;
9834 rel = NULL;
5446cbdf
AM
9835 while (lo < hi)
9836 {
9837 rel = lo + (hi - lo) / 2;
9838 if (rel->r_offset < offset)
9839 lo = rel + 1;
668e22e5 9840 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9841 hi = rel;
9842 else
9843 {
9844 switch (ELF32_R_TYPE (rel->r_info))
9845 {
9846 case R_PPC_ADDR32:
9847 case R_PPC_UADDR32:
9848 case R_PPC_REL32:
9849 case R_PPC_ADDR30:
9850 is_data = TRUE;
9851 break;
9852 default:
9853 break;
9854 }
9855 break;
9856 }
9857 }
9858 if (is_data)
9859 continue;
9860
b4ab4364
AM
9861 /* Some instructions can be left alone too. Unconditional
9862 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9863 avoid the icache failure.
9864
9865 The problem occurs due to prefetch across a page boundary
9866 where stale instructions can be fetched from the next
9867 page, and the mechanism for flushing these bad
9868 instructions fails under certain circumstances. The
9869 unconditional branches:
9870 1) Branch: b, bl, ba, bla,
9871 2) Branch Conditional: bc, bca, bcl, bcla,
9872 3) Branch Conditional to Link Register: bclr, bclrl,
9873 where (2) and (3) have BO=0x14 making them unconditional,
9874 prevent the bad prefetch because the prefetch itself is
9875 affected by these instructions. This happens even if the
9876 instruction is not executed.
9877
9878 A bctr example:
9879 .
9880 . lis 9,new_page@ha
9881 . addi 9,9,new_page@l
9882 . mtctr 9
9883 . bctr
9884 . nop
9885 . nop
9886 . new_page:
9887 .
9888 The bctr is not predicted taken due to ctr not being
9889 ready, so prefetch continues on past the bctr into the
9890 new page which might have stale instructions. If they
9891 fail to be flushed, then they will be executed after the
9892 bctr executes. Either of the following modifications
9893 prevent the bad prefetch from happening in the first
9894 place:
9895 .
1b786873
L
9896 . lis 9,new_page@ha lis 9,new_page@ha
9897 . addi 9,9,new_page@l addi 9,9,new_page@l
9898 . mtctr 9 mtctr 9
9899 . bctr bctr
b4ab4364 9900 . nop b somewhere_else
1b786873
L
9901 . b somewhere_else nop
9902 . new_page: new_page:
b4ab4364 9903 . */
5446cbdf 9904 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9905 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9906 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9907 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9908 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9909 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9910 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9911 continue;
9912
9913 patch_addr = (start_addr + input_section->size
9914 - relax_info->workaround_size);
9915 patch_addr = (patch_addr + 15) & -16;
9916 patch_off = patch_addr - start_addr;
9917 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9918
9919 if (rel != NULL
9920 && rel->r_offset >= offset
9921 && rel->r_offset < offset + 4)
9922 {
f8b44781
AM
9923 asection *sreloc;
9924
668e22e5
AM
9925 /* If the insn we are patching had a reloc, adjust the
9926 reloc r_offset so that the reloc applies to the moved
9927 location. This matters for -r and --emit-relocs. */
9928 if (rel + 1 != relend)
9929 {
9930 Elf_Internal_Rela tmp = *rel;
9931
9932 /* Keep the relocs sorted by r_offset. */
9933 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9934 relend[-1] = tmp;
9935 }
9936 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9937
9938 /* Adjust REL16 addends too. */
9939 switch (ELF32_R_TYPE (relend[-1].r_info))
9940 {
9941 case R_PPC_REL16:
9942 case R_PPC_REL16_LO:
9943 case R_PPC_REL16_HI:
9944 case R_PPC_REL16_HA:
9945 relend[-1].r_addend += patch_off - offset;
9946 break;
9947 default:
9948 break;
9949 }
9950
9951 /* If we are building a PIE or shared library with
9952 non-PIC objects, perhaps we had a dynamic reloc too?
9953 If so, the dynamic reloc must move with the insn. */
9954 sreloc = elf_section_data (input_section)->sreloc;
9955 if (sreloc != NULL)
9956 {
1d5c94cb 9957 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9958 bfd_vma soffset;
9959
1d5c94cb
AM
9960 slo = (Elf32_External_Rela *) sreloc->contents;
9961 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9962 soffset = (offset + input_section->output_section->vma
9963 + input_section->output_offset);
9964 while (slo < shi)
9965 {
1d5c94cb
AM
9966 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9967 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9968 &outrel);
f8b44781
AM
9969 if (outrel.r_offset < soffset)
9970 slo = srel + 1;
9971 else if (outrel.r_offset > soffset + 3)
9972 shi = srel;
9973 else
9974 {
1d5c94cb 9975 if (srel + 1 != srelend)
f8b44781 9976 {
1d5c94cb
AM
9977 memmove (srel, srel + 1,
9978 (srelend - (srel + 1)) * sizeof (*srel));
9979 srel = srelend - 1;
f8b44781
AM
9980 }
9981 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9982 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9983 (bfd_byte *) srel);
f8b44781
AM
9984 break;
9985 }
9986 }
9987 }
668e22e5
AM
9988 }
9989 else
9990 rel = NULL;
9991
5446cbdf
AM
9992 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9993 && (insn & 2) == 0 /* relative */)
9994 {
9995 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9996
9997 delta += offset - patch_off;
0e1862bb 9998 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 9999 delta = 0;
0e1862bb 10000 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
10001 {
10002 enum elf_ppc_reloc_type r_type;
10003
10004 r_type = ELF32_R_TYPE (relend[-1].r_info);
10005 if (r_type == R_PPC_REL14_BRTAKEN)
10006 insn |= BRANCH_PREDICT_BIT;
10007 else if (r_type == R_PPC_REL14_BRNTAKEN)
10008 insn &= ~BRANCH_PREDICT_BIT;
10009 else
10010 BFD_ASSERT (r_type == R_PPC_REL14);
10011
10012 if ((r_type == R_PPC_REL14_BRTAKEN
10013 || r_type == R_PPC_REL14_BRNTAKEN)
10014 && delta + 0x8000 < 0x10000
10015 && (bfd_signed_vma) delta < 0)
10016 insn ^= BRANCH_PREDICT_BIT;
10017 }
5446cbdf
AM
10018 if (delta + 0x8000 < 0x10000)
10019 {
10020 bfd_put_32 (input_bfd,
10021 (insn & ~0xfffc) | (delta & 0xfffc),
10022 contents + patch_off);
10023 patch_off += 4;
10024 bfd_put_32 (input_bfd,
10025 B | ((offset + 4 - patch_off) & 0x3fffffc),
10026 contents + patch_off);
10027 patch_off += 4;
10028 }
10029 else
10030 {
668e22e5
AM
10031 if (rel != NULL)
10032 {
10033 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
10034
10035 relend[-1].r_offset += 8;
10036 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
10037 }
5446cbdf
AM
10038 bfd_put_32 (input_bfd,
10039 (insn & ~0xfffc) | 8,
10040 contents + patch_off);
10041 patch_off += 4;
10042 bfd_put_32 (input_bfd,
10043 B | ((offset + 4 - patch_off) & 0x3fffffc),
10044 contents + patch_off);
10045 patch_off += 4;
10046 bfd_put_32 (input_bfd,
10047 B | ((delta - 8) & 0x3fffffc),
10048 contents + patch_off);
10049 patch_off += 4;
10050 }
10051 }
10052 else
10053 {
10054 bfd_put_32 (input_bfd, insn, contents + patch_off);
10055 patch_off += 4;
10056 bfd_put_32 (input_bfd,
10057 B | ((offset + 4 - patch_off) & 0x3fffffc),
10058 contents + patch_off);
10059 patch_off += 4;
10060 }
10061 BFD_ASSERT (patch_off <= input_section->size);
10062 relax_info->workaround_size = input_section->size - patch_off;
10063 }
10064 }
10065
252b5132
RH
10066 return ret;
10067}
252b5132 10068\f
25dbc73a
AM
10069/* Finish up dynamic symbol handling. We set the contents of various
10070 dynamic sections here. */
c5fccbec 10071
b34976b6 10072static bfd_boolean
25dbc73a
AM
10073ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
10074 struct bfd_link_info *info,
10075 struct elf_link_hash_entry *h,
10076 Elf_Internal_Sym *sym)
e1a9cb8e 10077{
25dbc73a 10078 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
10079 struct plt_entry *ent;
10080 bfd_boolean doneone;
e1a9cb8e 10081
25dbc73a
AM
10082#ifdef DEBUG
10083 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
10084 h->root.root.string);
10085#endif
e1a9cb8e 10086
25dbc73a
AM
10087 htab = ppc_elf_hash_table (info);
10088 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 10089
a6aa5195
AM
10090 doneone = FALSE;
10091 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10092 if (ent->plt.offset != (bfd_vma) -1)
10093 {
10094 if (!doneone)
10095 {
10096 Elf_Internal_Rela rela;
10097 bfd_byte *loc;
10098 bfd_vma reloc_index;
e1a9cb8e 10099
e054468f 10100 if (htab->plt_type == PLT_NEW
25f23106
AM
10101 || !htab->elf.dynamic_sections_created
10102 || h->dynindx == -1)
9d8504b1
PB
10103 reloc_index = ent->plt.offset / 4;
10104 else
10105 {
10106 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
10107 / htab->plt_slot_size);
10108 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 10109 && htab->plt_type == PLT_OLD)
9d8504b1
PB
10110 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
10111 }
10112
a6aa5195
AM
10113 /* This symbol has an entry in the procedure linkage table.
10114 Set it up. */
e054468f 10115 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
10116 && htab->elf.dynamic_sections_created
10117 && h->dynindx != -1)
a6aa5195 10118 {
9d8504b1
PB
10119 bfd_vma got_offset;
10120 const bfd_vma *plt_entry;
5b914448 10121
9d8504b1
PB
10122 /* The first three entries in .got.plt are reserved. */
10123 got_offset = (reloc_index + 3) * 4;
10124
10125 /* Use the right PLT. */
0e1862bb 10126 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
10127 : ppc_elf_vxworks_plt_entry;
10128
10129 /* Fill in the .plt on VxWorks. */
0e1862bb 10130 if (bfd_link_pic (info))
9d8504b1 10131 {
9d8504b1 10132 bfd_put_32 (output_bfd,
e87d4038 10133 plt_entry[0] | PPC_HA (got_offset),
ce558b89 10134 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10135 bfd_put_32 (output_bfd,
e87d4038 10136 plt_entry[1] | PPC_LO (got_offset),
ce558b89 10137 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10138 }
10139 else
10140 {
e87d4038 10141 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
10142
10143 bfd_put_32 (output_bfd,
e87d4038 10144 plt_entry[0] | PPC_HA (got_loc),
ce558b89 10145 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 10146 bfd_put_32 (output_bfd,
e87d4038 10147 plt_entry[1] | PPC_LO (got_loc),
ce558b89 10148 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
10149 }
10150
10151 bfd_put_32 (output_bfd, plt_entry[2],
ce558b89 10152 htab->elf.splt->contents + ent->plt.offset + 8);
9d8504b1 10153 bfd_put_32 (output_bfd, plt_entry[3],
ce558b89 10154 htab->elf.splt->contents + ent->plt.offset + 12);
9d8504b1
PB
10155
10156 /* This instruction is an immediate load. The value loaded is
10157 the byte offset of the R_PPC_JMP_SLOT relocation from the
10158 start of the .rela.plt section. The value is stored in the
10159 low-order 16 bits of the load instruction. */
10160 /* NOTE: It appears that this is now an index rather than a
10161 prescaled offset. */
5b914448 10162 bfd_put_32 (output_bfd,
9d8504b1 10163 plt_entry[4] | reloc_index,
ce558b89 10164 htab->elf.splt->contents + ent->plt.offset + 16);
9d8504b1
PB
10165 /* This instruction is a PC-relative branch whose target is
10166 the start of the PLT section. The address of this branch
10167 instruction is 20 bytes beyond the start of this PLT entry.
10168 The address is encoded in bits 6-29, inclusive. The value
10169 stored is right-shifted by two bits, permitting a 26-bit
10170 offset. */
5b914448
AM
10171 bfd_put_32 (output_bfd,
10172 (plt_entry[5]
9d8504b1 10173 | (-(ent->plt.offset + 20) & 0x03fffffc)),
ce558b89 10174 htab->elf.splt->contents + ent->plt.offset + 20);
9d8504b1 10175 bfd_put_32 (output_bfd, plt_entry[6],
ce558b89 10176 htab->elf.splt->contents + ent->plt.offset + 24);
9d8504b1 10177 bfd_put_32 (output_bfd, plt_entry[7],
ce558b89 10178 htab->elf.splt->contents + ent->plt.offset + 28);
9d8504b1
PB
10179
10180 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 10181 the address immediately after the "bctr" instruction
9d8504b1 10182 in this PLT entry. */
ce558b89
AM
10183 bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
10184 + htab->elf.splt->output_offset
9d8504b1 10185 + ent->plt.offset + 16),
ce558b89 10186 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10187
0e1862bb 10188 if (!bfd_link_pic (info))
9d8504b1
PB
10189 {
10190 /* Fill in a couple of entries in .rela.plt.unloaded. */
10191 loc = htab->srelplt2->contents
10192 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10193 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10194 * sizeof (Elf32_External_Rela));
10195
10196 /* Provide the @ha relocation for the first instruction. */
ce558b89
AM
10197 rela.r_offset = (htab->elf.splt->output_section->vma
10198 + htab->elf.splt->output_offset
9d8504b1 10199 + ent->plt.offset + 2);
636ce3f5 10200 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10201 R_PPC_ADDR16_HA);
10202 rela.r_addend = got_offset;
10203 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10204 loc += sizeof (Elf32_External_Rela);
10205
10206 /* Provide the @l relocation for the second instruction. */
ce558b89
AM
10207 rela.r_offset = (htab->elf.splt->output_section->vma
10208 + htab->elf.splt->output_offset
9d8504b1 10209 + ent->plt.offset + 6);
636ce3f5 10210 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10211 R_PPC_ADDR16_LO);
10212 rela.r_addend = got_offset;
10213 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10214 loc += sizeof (Elf32_External_Rela);
10215
10216 /* Provide a relocation for the GOT entry corresponding to this
10217 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10218 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10219 + htab->elf.sgotplt->output_offset
9d8504b1 10220 + got_offset);
7325306f 10221 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10222 R_PPC_ADDR32);
10223 rela.r_addend = ent->plt.offset + 16;
10224 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10225 }
10226
10227 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10228 In particular, the offset for the relocation is not the
10229 address of the PLT entry for this function, as specified
10230 by the ABI. Instead, the offset is set to the address of
10231 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10232 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10233 + htab->elf.sgotplt->output_offset
9d8504b1
PB
10234 + got_offset);
10235
a6aa5195
AM
10236 }
10237 else
10238 {
ce558b89 10239 asection *splt = htab->elf.splt;
25f23106
AM
10240 if (!htab->elf.dynamic_sections_created
10241 || h->dynindx == -1)
ce558b89 10242 splt = htab->elf.iplt;
e054468f
AM
10243
10244 rela.r_offset = (splt->output_section->vma
10245 + splt->output_offset
9d8504b1 10246 + ent->plt.offset);
e054468f 10247 if (htab->plt_type == PLT_OLD
25f23106
AM
10248 || !htab->elf.dynamic_sections_created
10249 || h->dynindx == -1)
9d8504b1
PB
10250 {
10251 /* We don't need to fill in the .plt. The ppc dynamic
10252 linker will fill it in. */
10253 }
10254 else
10255 {
10256 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10257 + htab->glink->output_section->vma
10258 + htab->glink->output_offset);
10259 bfd_put_32 (output_bfd, val,
e054468f 10260 splt->contents + ent->plt.offset);
9d8504b1 10261 }
a6aa5195 10262 }
e1a9cb8e 10263
a6aa5195 10264 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10265 rela.r_addend = 0;
e054468f
AM
10266 if (!htab->elf.dynamic_sections_created
10267 || h->dynindx == -1)
10268 {
10269 BFD_ASSERT (h->type == STT_GNU_IFUNC
10270 && h->def_regular
10271 && (h->root.type == bfd_link_hash_defined
10272 || h->root.type == bfd_link_hash_defweak));
10273 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10274 rela.r_addend = SYM_VAL (h);
10275 }
10276 else
10277 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10278
25f23106
AM
10279 if (!htab->elf.dynamic_sections_created
10280 || h->dynindx == -1)
82e66161
AM
10281 {
10282 loc = (htab->elf.irelplt->contents
10283 + (htab->elf.irelplt->reloc_count++
10284 * sizeof (Elf32_External_Rela)));
10285 htab->local_ifunc_resolver = 1;
10286 }
e054468f 10287 else
82e66161
AM
10288 {
10289 loc = (htab->elf.srelplt->contents
10290 + reloc_index * sizeof (Elf32_External_Rela));
10291 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10292 htab->maybe_local_ifunc_resolver = 1;
10293 }
a6aa5195 10294 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10295
a6aa5195
AM
10296 if (!h->def_regular)
10297 {
0eb4a168
AM
10298 /* Mark the symbol as undefined, rather than as
10299 defined in the .plt section. Leave the value if
10300 there were any relocations where pointer equality
10301 matters (this is a clue for the dynamic linker, to
10302 make function pointer comparisons work between an
10303 application and shared library), otherwise set it
10304 to zero. */
a6aa5195 10305 sym->st_shndx = SHN_UNDEF;
0eb4a168 10306 if (!h->pointer_equality_needed)
a6aa5195 10307 sym->st_value = 0;
0eb4a168
AM
10308 else if (!h->ref_regular_nonweak)
10309 {
625af618
AM
10310 /* This breaks function pointer comparisons, but
10311 that is better than breaking tests for a NULL
0eb4a168 10312 function pointer. */
0eb4a168
AM
10313 sym->st_value = 0;
10314 }
a6aa5195 10315 }
de972ffa 10316 else if (h->type == STT_GNU_IFUNC
0e1862bb 10317 && !bfd_link_pic (info))
de972ffa
AM
10318 {
10319 /* Set the value of ifunc symbols in a non-pie
10320 executable to the glink entry. This is to avoid
10321 text relocations. We can't do this for ifunc in
10322 allocate_dynrelocs, as we do for normal dynamic
10323 function symbols with plt entries, because we need
10324 to keep the original value around for the ifunc
10325 relocation. */
10326 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10327 (output_bfd, htab->glink->output_section));
5b914448
AM
10328 sym->st_value = (ent->glink_offset
10329 + htab->glink->output_offset
de972ffa
AM
10330 + htab->glink->output_section->vma);
10331 }
a6aa5195
AM
10332 doneone = TRUE;
10333 }
e1a9cb8e 10334
e054468f 10335 if (htab->plt_type == PLT_NEW
25f23106
AM
10336 || !htab->elf.dynamic_sections_created
10337 || h->dynindx == -1)
a6aa5195 10338 {
a7f2871e 10339 unsigned char *p;
ce558b89 10340 asection *splt = htab->elf.splt;
25f23106
AM
10341 if (!htab->elf.dynamic_sections_created
10342 || h->dynindx == -1)
ce558b89 10343 splt = htab->elf.iplt;
e1a9cb8e 10344
a7f2871e
AM
10345 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10346
5446cbdf 10347 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10348 {
10349 bfd_put_32 (output_bfd, LWZ_11_3, p);
10350 p += 4;
10351 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10352 p += 4;
10353 bfd_put_32 (output_bfd, MR_0_3, p);
10354 p += 4;
10355 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10356 p += 4;
10357 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10358 p += 4;
10359 bfd_put_32 (output_bfd, BEQLR, p);
10360 p += 4;
10361 bfd_put_32 (output_bfd, MR_3_0, p);
10362 p += 4;
10363 bfd_put_32 (output_bfd, NOP, p);
10364 p += 4;
10365 }
10366
10367 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10368
0e1862bb 10369 if (!bfd_link_pic (info))
e054468f
AM
10370 /* We only need one non-PIC glink stub. */
10371 break;
a6aa5195
AM
10372 }
10373 else
10374 break;
10375 }
e1a9cb8e 10376
25dbc73a
AM
10377 if (h->needs_copy)
10378 {
10379 asection *s;
10380 Elf_Internal_Rela rela;
10381 bfd_byte *loc;
e1a9cb8e 10382
25dbc73a 10383 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10384
25dbc73a
AM
10385#ifdef DEBUG
10386 fprintf (stderr, ", copy");
10387#endif
e1a9cb8e 10388
25dbc73a 10389 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10390
4dc4a9a5 10391 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10392 s = htab->relsbss;
afbf7e8e 10393 else if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f 10394 s = htab->elf.sreldynrelro;
25dbc73a 10395 else
9d19e4fd 10396 s = htab->elf.srelbss;
25dbc73a 10397 BFD_ASSERT (s != NULL);
e1a9cb8e 10398
e87d4038 10399 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10400 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10401 rela.r_addend = 0;
10402 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10403 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10404 }
e1a9cb8e 10405
25dbc73a
AM
10406#ifdef DEBUG
10407 fprintf (stderr, "\n");
10408#endif
e1a9cb8e 10409
25dbc73a
AM
10410 return TRUE;
10411}
10412\f
10413static enum elf_reloc_type_class
7e612e98
AM
10414ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10415 const asection *rel_sec,
10416 const Elf_Internal_Rela *rela)
e1a9cb8e 10417{
7e612e98
AM
10418 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10419
ce558b89 10420 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
10421 return reloc_class_ifunc;
10422
25dbc73a
AM
10423 switch (ELF32_R_TYPE (rela->r_info))
10424 {
10425 case R_PPC_RELATIVE:
10426 return reloc_class_relative;
25dbc73a
AM
10427 case R_PPC_JMP_SLOT:
10428 return reloc_class_plt;
10429 case R_PPC_COPY:
10430 return reloc_class_copy;
10431 default:
10432 return reloc_class_normal;
10433 }
e1a9cb8e 10434}
25dbc73a
AM
10435\f
10436/* Finish up the dynamic sections. */
e1a9cb8e 10437
25dbc73a
AM
10438static bfd_boolean
10439ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10440 struct bfd_link_info *info)
e1a9cb8e 10441{
25dbc73a
AM
10442 asection *sdyn;
10443 struct ppc_elf_link_hash_table *htab;
1fe44d79 10444 bfd_vma got;
e87d4038
AM
10445 bfd *dynobj;
10446 bfd_boolean ret = TRUE;
e1a9cb8e 10447
25dbc73a
AM
10448#ifdef DEBUG
10449 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10450#endif
6b0817e5 10451
25dbc73a 10452 htab = ppc_elf_hash_table (info);
ce558b89 10453 dynobj = htab->elf.dynobj;
3d4d4302 10454 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
e1a9cb8e 10455
1fe44d79
AM
10456 got = 0;
10457 if (htab->elf.hgot != NULL)
e87d4038 10458 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10459
25dbc73a 10460 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10461 {
25dbc73a 10462 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10463
ce558b89 10464 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 10465
25dbc73a
AM
10466 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10467 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10468 for (; dyncon < dynconend; dyncon++)
10469 {
10470 Elf_Internal_Dyn dyn;
10471 asection *s;
e1a9cb8e 10472
9d8504b1 10473 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10474
25dbc73a
AM
10475 switch (dyn.d_tag)
10476 {
10477 case DT_PLTGOT:
9d8504b1 10478 if (htab->is_vxworks)
ce558b89 10479 s = htab->elf.sgotplt;
9d8504b1 10480 else
ce558b89 10481 s = htab->elf.splt;
25dbc73a
AM
10482 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10483 break;
86bbe32f 10484
25dbc73a 10485 case DT_PLTRELSZ:
ce558b89 10486 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 10487 break;
e1a9cb8e 10488
25dbc73a 10489 case DT_JMPREL:
ce558b89 10490 s = htab->elf.srelplt;
25dbc73a
AM
10491 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10492 break;
2f89ff8d 10493
1fe44d79
AM
10494 case DT_PPC_GOT:
10495 dyn.d_un.d_ptr = got;
d7128ce4
AM
10496 break;
10497
82e66161
AM
10498 case DT_TEXTREL:
10499 if (htab->local_ifunc_resolver)
10500 info->callbacks->einfo
10501 (_("%X%P: text relocations and GNU indirect "
10502 "functions will result in a segfault at runtime\n"));
10503 else if (htab->maybe_local_ifunc_resolver)
10504 info->callbacks->einfo
10505 (_("%P: warning: text relocations and GNU indirect "
10506 "functions may result in a segfault at runtime\n"));
10507 continue;
10508
25dbc73a 10509 default:
7a2b07ff
NS
10510 if (htab->is_vxworks
10511 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10512 break;
25dbc73a
AM
10513 continue;
10514 }
4c45e5c9 10515
25dbc73a
AM
10516 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10517 }
10518 }
4c45e5c9 10519
6528b6eb
AM
10520 if (htab->elf.sgot != NULL
10521 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
25dbc73a 10522 {
ce558b89
AM
10523 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10524 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 10525 {
e79f5955 10526 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10527
e87d4038
AM
10528 p += htab->elf.hgot->root.u.def.value;
10529 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10530 {
10531 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10532 so that a function can easily find the address of
10533 _GLOBAL_OFFSET_TABLE_. */
10534 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10535 < htab->elf.hgot->root.u.def.section->size);
10536 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10537 }
3b36f7e6 10538
e87d4038 10539 if (sdyn != NULL)
e79f5955
AM
10540 {
10541 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10542 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10543 < htab->elf.hgot->root.u.def.section->size);
10544 bfd_put_32 (output_bfd, val, p);
10545 }
e87d4038
AM
10546 }
10547 else
10548 {
695344c0 10549 /* xgettext:c-format */
8de848d8 10550 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85 10551 htab->elf.hgot->root.root.string,
ce558b89
AM
10552 (htab->elf.sgotplt != NULL
10553 ? htab->elf.sgotplt->name
10554 : htab->elf.sgot->name));
e87d4038
AM
10555 bfd_set_error (bfd_error_bad_value);
10556 ret = FALSE;
10557 }
25dbc73a 10558
ce558b89 10559 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
10560 }
10561
9d8504b1 10562 /* Fill in the first entry in the VxWorks procedure linkage table. */
6528b6eb
AM
10563 if (htab->is_vxworks
10564 && htab->elf.splt != NULL
10565 && htab->elf.splt->size != 0
10566 && htab->elf.splt->output_section != bfd_abs_section_ptr)
9d8504b1 10567 {
6528b6eb 10568 asection *splt = htab->elf.splt;
9d8504b1 10569 /* Use the right PLT. */
0e1862bb 10570 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10571 ? ppc_elf_vxworks_pic_plt0_entry
10572 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10573
0e1862bb 10574 if (!bfd_link_pic (info))
9d8504b1 10575 {
e87d4038 10576 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10577
e87d4038 10578 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10579 splt->contents + 0);
e87d4038 10580 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10581 splt->contents + 4);
10582 }
10583 else
10584 {
10585 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10586 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10587 }
10588 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10589 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10590 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10591 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10592 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10593 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10594
0e1862bb 10595 if (! bfd_link_pic (info))
9d8504b1
PB
10596 {
10597 Elf_Internal_Rela rela;
10598 bfd_byte *loc;
10599
10600 loc = htab->srelplt2->contents;
10601
10602 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
10603 rela.r_offset = (htab->elf.splt->output_section->vma
10604 + htab->elf.splt->output_offset
9d8504b1 10605 + 2);
636ce3f5 10606 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10607 rela.r_addend = 0;
10608 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10609 loc += sizeof (Elf32_External_Rela);
5b914448 10610
9d8504b1 10611 /* Output the @l relocation for the second instruction. */
ce558b89
AM
10612 rela.r_offset = (htab->elf.splt->output_section->vma
10613 + htab->elf.splt->output_offset
9d8504b1 10614 + 6);
636ce3f5 10615 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10616 rela.r_addend = 0;
10617 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10618 loc += sizeof (Elf32_External_Rela);
10619
10620 /* Fix up the remaining relocations. They may have the wrong
10621 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10622 in which symbols were output. */
10623 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10624 {
10625 Elf_Internal_Rela rel;
10626
10627 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10628 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10629 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10630 loc += sizeof (Elf32_External_Rela);
10631
10632 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10633 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10634 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10635 loc += sizeof (Elf32_External_Rela);
10636
10637 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10638 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10639 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10640 loc += sizeof (Elf32_External_Rela);
10641 }
10642 }
10643 }
10644
e054468f
AM
10645 if (htab->glink != NULL
10646 && htab->glink->contents != NULL
10647 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10648 {
10649 unsigned char *p;
10650 unsigned char *endp;
a6aa5195 10651 bfd_vma res0;
d7128ce4 10652 unsigned int i;
a6aa5195
AM
10653
10654 /*
10655 * PIC glink code is the following:
10656 *
10657 * # ith PLT code stub.
10658 * addis 11,30,(plt+(i-1)*4-got)@ha
10659 * lwz 11,(plt+(i-1)*4-got)@l(11)
10660 * mtctr 11
10661 * bctr
10662 *
10663 * # A table of branches, one for each plt entry.
176a0d42 10664 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10665 * # addresses, so (r11 - res_0) gives the plt index * 4.
10666 * res_0: b PLTresolve
10667 * res_1: b PLTresolve
10668 * .
10669 * # Some number of entries towards the end can be nops
10670 * res_n_m3: nop
10671 * res_n_m2: nop
10672 * res_n_m1:
10673 *
10674 * PLTresolve:
10675 * addis 11,11,(1f-res_0)@ha
10676 * mflr 0
10677 * bcl 20,31,1f
10678 * 1: addi 11,11,(1b-res_0)@l
10679 * mflr 12
10680 * mtlr 0
10681 * sub 11,11,12 # r11 = index * 4
10682 * addis 12,12,(got+4-1b)@ha
10683 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10684 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10685 * mtctr 0
10686 * add 0,11,11
10687 * add 11,0,11 # r11 = index * 12 = reloc offset.
10688 * bctr
10689 */
10690 static const unsigned int pic_plt_resolve[] =
10691 {
10692 ADDIS_11_11,
10693 MFLR_0,
10694 BCL_20_31,
10695 ADDI_11_11,
10696 MFLR_12,
10697 MTLR_0,
10698 SUB_11_11_12,
10699 ADDIS_12_12,
10700 LWZ_0_12,
10701 LWZ_12_12,
10702 MTCTR_0,
10703 ADD_0_11_11,
10704 ADD_11_0_11,
10705 BCTR,
10706 NOP,
10707 NOP
10708 };
10709
176a0d42
AM
10710 /*
10711 * Non-PIC glink code is a little simpler.
10712 *
10713 * # ith PLT code stub.
10714 * lis 11,(plt+(i-1)*4)@ha
10715 * lwz 11,(plt+(i-1)*4)@l(11)
10716 * mtctr 11
10717 * bctr
10718 *
10719 * The branch table is the same, then comes
10720 *
10721 * PLTresolve:
10722 * lis 12,(got+4)@ha
10723 * addis 11,11,(-res_0)@ha
10724 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10725 * addi 11,11,(-res_0)@l # r11 = index * 4
10726 * mtctr 0
10727 * add 0,11,11
10728 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10729 * add 11,0,11 # r11 = index * 12 = reloc offset.
10730 * bctr
10731 */
d7128ce4
AM
10732 static const unsigned int plt_resolve[] =
10733 {
a6aa5195
AM
10734 LIS_12,
10735 ADDIS_11_11,
10736 LWZ_0_12,
10737 ADDI_11_11,
d7128ce4 10738 MTCTR_0,
7e8aeb9a 10739 ADD_0_11_11,
a6aa5195 10740 LWZ_12_12,
7e8aeb9a 10741 ADD_11_0_11,
d7128ce4
AM
10742 BCTR,
10743 NOP,
10744 NOP,
a6aa5195
AM
10745 NOP,
10746 NOP,
10747 NOP,
10748 NOP,
d7128ce4
AM
10749 NOP
10750 };
10751
a6aa5195
AM
10752 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10753 abort ();
10754 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10755 abort ();
10756
a6aa5195 10757 /* Build the branch table, one for each plt entry (less one),
86b9da88 10758 and perhaps some padding. */
a6aa5195
AM
10759 p = htab->glink->contents;
10760 p += htab->glink_pltresolve;
86b9da88
AM
10761 endp = htab->glink->contents;
10762 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10763 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10764 {
10765 bfd_put_32 (output_bfd, B + endp - p, p);
10766 p += 4;
10767 }
10768 while (p < endp)
10769 {
10770 bfd_put_32 (output_bfd, NOP, p);
10771 p += 4;
10772 }
10773
7e8aeb9a 10774 res0 = (htab->glink_pltresolve
86b9da88
AM
10775 + htab->glink->output_section->vma
10776 + htab->glink->output_offset);
10777
da3a2088
AM
10778 if (htab->params->ppc476_workaround)
10779 {
10780 /* Ensure that a call stub at the end of a page doesn't
10781 result in prefetch over the end of the page into the
10782 glink branch table. */
10783 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10784 bfd_vma page_addr;
10785 bfd_vma glink_start = (htab->glink->output_section->vma
10786 + htab->glink->output_offset);
10787
10788 for (page_addr = res0 & -pagesize;
10789 page_addr > glink_start;
10790 page_addr -= pagesize)
10791 {
10792 /* We have a plt call stub that may need fixing. */
10793 bfd_byte *loc;
10794 unsigned int insn;
10795
10796 loc = htab->glink->contents + page_addr - 4 - glink_start;
10797 insn = bfd_get_32 (output_bfd, loc);
10798 if (insn == BCTR)
10799 {
10800 /* By alignment, we know that there must be at least
10801 one other call stub before this one. */
10802 insn = bfd_get_32 (output_bfd, loc - 16);
10803 if (insn == BCTR)
10804 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10805 else
10806 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10807 }
10808 }
10809 }
10810
86b9da88 10811 /* Last comes the PLTresolve stub. */
0e1862bb 10812 if (bfd_link_pic (info))
7e8aeb9a 10813 {
a6aa5195 10814 bfd_vma bcl;
d7128ce4 10815
a6aa5195 10816 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10817 {
da3a2088
AM
10818 unsigned int insn = pic_plt_resolve[i];
10819
10820 if (htab->params->ppc476_workaround && insn == NOP)
10821 insn = BA + 0;
10822 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10823 p += 4;
10824 }
a6aa5195
AM
10825 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10826
10827 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10828 + htab->glink->output_section->vma
10829 + htab->glink->output_offset);
10830
10831 bfd_put_32 (output_bfd,
10832 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10833 bfd_put_32 (output_bfd,
10834 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10835 bfd_put_32 (output_bfd,
10836 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10837 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10838 {
10839 bfd_put_32 (output_bfd,
10840 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10841 bfd_put_32 (output_bfd,
10842 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10843 }
10844 else
10845 {
10846 bfd_put_32 (output_bfd,
10847 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10848 bfd_put_32 (output_bfd,
10849 LWZ_12_12 + 4, p + 9*4);
10850 }
7e8aeb9a
AM
10851 }
10852 else
d7128ce4 10853 {
a6aa5195 10854 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10855 {
da3a2088
AM
10856 unsigned int insn = plt_resolve[i];
10857
10858 if (htab->params->ppc476_workaround && insn == NOP)
10859 insn = BA + 0;
10860 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10861 p += 4;
10862 }
a6aa5195
AM
10863 p -= 4 * ARRAY_SIZE (plt_resolve);
10864
10865 bfd_put_32 (output_bfd,
10866 LIS_12 + PPC_HA (got + 4), p + 0*4);
10867 bfd_put_32 (output_bfd,
10868 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10869 bfd_put_32 (output_bfd,
10870 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10871 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10872 {
10873 bfd_put_32 (output_bfd,
10874 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10875 bfd_put_32 (output_bfd,
10876 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10877 }
10878 else
10879 {
10880 bfd_put_32 (output_bfd,
10881 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10882 bfd_put_32 (output_bfd,
10883 LWZ_12_12 + 4, p + 6*4);
10884 }
d7128ce4 10885 }
d7128ce4
AM
10886 }
10887
6177242a
AM
10888 if (htab->glink_eh_frame != NULL
10889 && htab->glink_eh_frame->contents != NULL)
10890 {
10891 unsigned char *p = htab->glink_eh_frame->contents;
10892 bfd_vma val;
10893
6177242a
AM
10894 p += sizeof (glink_eh_frame_cie);
10895 /* FDE length. */
6177242a
AM
10896 p += 4;
10897 /* CIE pointer. */
6177242a
AM
10898 p += 4;
10899 /* Offset to .glink. */
10900 val = (htab->glink->output_section->vma
10901 + htab->glink->output_offset);
10902 val -= (htab->glink_eh_frame->output_section->vma
10903 + htab->glink_eh_frame->output_offset);
10904 val -= p - htab->glink_eh_frame->contents;
10905 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10906
dbaa2011 10907 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10908 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10909 htab->glink_eh_frame,
10910 htab->glink_eh_frame->contents))
10911 return FALSE;
10912 }
10913
e87d4038 10914 return ret;
25dbc73a 10915}
e1a9cb8e 10916\f
6d00b590 10917#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10918#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10919#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10920#define TARGET_BIG_NAME "elf32-powerpc"
10921#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10922#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10923#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10924#ifdef __QNXTARGET__
10925#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10926#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10927#else
252b5132 10928#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10929#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10930#endif
b1342370 10931#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10932#define elf_info_to_howto ppc_elf_info_to_howto
10933
10934#ifdef EM_CYGNUS_POWERPC
10935#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10936#endif
10937
10938#ifdef EM_PPC_OLD
10939#define ELF_MACHINE_ALT2 EM_PPC_OLD
10940#endif
10941
10942#define elf_backend_plt_not_loaded 1
5474d94f 10943#define elf_backend_want_dynrelro 1
252b5132 10944#define elf_backend_can_gc_sections 1
51b64d56 10945#define elf_backend_can_refcount 1
b491616a 10946#define elf_backend_rela_normal 1
53291d1f 10947#define elf_backend_caches_rawsize 1
252b5132 10948
43c40ab2 10949#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10950#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10951#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10952#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10953#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10954#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10955#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10956#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10957
feee612b 10958#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
10959#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
10960#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
10961#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10962#define elf_backend_relocate_section ppc_elf_relocate_section
10963#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10964#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 10965#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10966#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10967#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10968#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10969#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10970#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10971#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10972#define elf_backend_fake_sections ppc_elf_fake_sections
10973#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
954b63d4 10974#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10975#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10976#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10977#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10978#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10979#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10980#define elf_backend_final_write_processing ppc_elf_final_write_processing
10981#define elf_backend_write_section ppc_elf_write_section
551b43fd 10982#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10983#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10984#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10985#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10986#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10987
10988#include "elf32-target.h"
9d8504b1 10989
7b8e7dad
AM
10990/* FreeBSD Target */
10991
10992#undef TARGET_LITTLE_SYM
10993#undef TARGET_LITTLE_NAME
10994
10995#undef TARGET_BIG_SYM
6d00b590 10996#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
10997#undef TARGET_BIG_NAME
10998#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10999
11000#undef ELF_OSABI
11001#define ELF_OSABI ELFOSABI_FREEBSD
11002
11003#undef elf32_bed
11004#define elf32_bed elf32_powerpc_fbsd_bed
11005
11006#include "elf32-target.h"
11007
9d8504b1
PB
11008/* VxWorks Target */
11009
11010#undef TARGET_LITTLE_SYM
11011#undef TARGET_LITTLE_NAME
11012
11013#undef TARGET_BIG_SYM
6d00b590 11014#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
11015#undef TARGET_BIG_NAME
11016#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
11017
7b8e7dad
AM
11018#undef ELF_OSABI
11019
d5e3d971
PB
11020/* VxWorks uses the elf default section flags for .plt. */
11021static const struct bfd_elf_special_section *
4aef7643 11022ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
9d8504b1 11023{
d5e3d971
PB
11024 if (sec->name == NULL)
11025 return NULL;
11026
11027 if (strcmp (sec->name, ".plt") == 0)
11028 return _bfd_elf_get_sec_type_attr (abfd, sec);
11029
11030 return ppc_elf_get_sec_type_attr (abfd, sec);
11031}
9d8504b1
PB
11032
11033/* Like ppc_elf_link_hash_table_create, but overrides
11034 appropriately for VxWorks. */
11035static struct bfd_link_hash_table *
11036ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
11037{
11038 struct bfd_link_hash_table *ret;
11039
11040 ret = ppc_elf_link_hash_table_create (abfd);
11041 if (ret)
11042 {
11043 struct ppc_elf_link_hash_table *htab
954b63d4 11044 = (struct ppc_elf_link_hash_table *)ret;
9d8504b1 11045 htab->is_vxworks = 1;
4a3dc543 11046 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
11047 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
11048 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
11049 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
11050 }
11051 return ret;
11052}
11053
11054/* Tweak magic VxWorks symbols as they are loaded. */
11055static bfd_boolean
11056ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
11057 struct bfd_link_info *info,
11058 Elf_Internal_Sym *sym,
4aef7643
AM
11059 const char **namep,
11060 flagword *flagsp,
9d8504b1
PB
11061 asection **secp,
11062 bfd_vma *valp)
11063{
4aef7643
AM
11064 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
11065 valp))
9d8504b1
PB
11066 return FALSE;
11067
4aef7643 11068 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
9d8504b1
PB
11069}
11070
9d8504b1
PB
11071static void
11072ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
11073{
4aef7643
AM
11074 ppc_elf_final_write_processing (abfd, linker);
11075 elf_vxworks_final_write_processing (abfd, linker);
9d8504b1
PB
11076}
11077
11078/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
11079 define it. */
11080#undef elf_backend_want_plt_sym
11081#define elf_backend_want_plt_sym 1
11082#undef elf_backend_want_got_plt
11083#define elf_backend_want_got_plt 1
11084#undef elf_backend_got_symbol_offset
11085#define elf_backend_got_symbol_offset 0
11086#undef elf_backend_plt_not_loaded
11087#define elf_backend_plt_not_loaded 0
11088#undef elf_backend_plt_readonly
11089#define elf_backend_plt_readonly 1
11090#undef elf_backend_got_header_size
11091#define elf_backend_got_header_size 12
64f52338
AM
11092#undef elf_backend_dtrel_excludes_plt
11093#define elf_backend_dtrel_excludes_plt 1
9d8504b1 11094
468392fb
AM
11095#undef bfd_elf32_get_synthetic_symtab
11096
9d8504b1
PB
11097#undef bfd_elf32_bfd_link_hash_table_create
11098#define bfd_elf32_bfd_link_hash_table_create \
11099 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
11100#undef elf_backend_add_symbol_hook
11101#define elf_backend_add_symbol_hook \
11102 ppc_elf_vxworks_add_symbol_hook
11103#undef elf_backend_link_output_symbol_hook
11104#define elf_backend_link_output_symbol_hook \
9c72ff84 11105 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
11106#undef elf_backend_final_write_processing
11107#define elf_backend_final_write_processing \
11108 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
11109#undef elf_backend_get_sec_type_attr
11110#define elf_backend_get_sec_type_attr \
11111 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
11112#undef elf_backend_emit_relocs
11113#define elf_backend_emit_relocs \
11114 elf_vxworks_emit_relocs
11115
11116#undef elf32_bed
11117#define elf32_bed ppc_elf_vxworks_bed
e054468f 11118#undef elf_backend_post_process_headers
9d8504b1
PB
11119
11120#include "elf32-target.h"
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