PR22374 testcase, function pointer references in .data
[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
25dbc73a
AM
3181/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3182 copying dynamic variables from a shared lib into an app's dynbss
3183 section, and instead use a dynamic relocation to point into the
3184 shared lib. */
3185#define ELIMINATE_COPY_RELOCS 1
252b5132 3186
f95f8542
AM
3187/* Used to track dynamic relocations for local symbols. */
3188struct ppc_dyn_relocs
3189{
3190 struct ppc_dyn_relocs *next;
3191
3192 /* The input section of the reloc. */
3193 asection *sec;
3194
3195 /* Total number of relocs copied for the input section. */
3196 unsigned int count : 31;
3197
3198 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3199 unsigned int ifunc : 1;
3200};
3201
25dbc73a 3202/* PPC ELF linker hash entry. */
252b5132 3203
25dbc73a
AM
3204struct ppc_elf_link_hash_entry
3205{
3206 struct elf_link_hash_entry elf;
252b5132 3207
25dbc73a
AM
3208 /* If this symbol is used in the linker created sections, the processor
3209 specific backend uses this field to map the field into the offset
3210 from the beginning of the section. */
3211 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3212
25dbc73a 3213 /* Track dynamic relocs copied for this symbol. */
6061a67d 3214 struct elf_dyn_relocs *dyn_relocs;
252b5132 3215
25dbc73a
AM
3216 /* Contexts in which symbol is used in the GOT (or TOC).
3217 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3218 corresponding relocs are encountered during check_relocs.
3219 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3220 indicate the corresponding GOT entry type is not needed. */
3221#define TLS_GD 1 /* GD reloc. */
3222#define TLS_LD 2 /* LD reloc. */
3223#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3224#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3225#define TLS_TLS 16 /* Any TLS reloc. */
3226#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3227#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3228 char tls_mask;
4dc4a9a5
DJ
3229
3230 /* Nonzero if we have seen a small data relocation referring to this
3231 symbol. */
d3e454b9
AM
3232 unsigned char has_sda_refs : 1;
3233
3234 /* Flag use of given relocations. */
3235 unsigned char has_addr16_ha : 1;
3236 unsigned char has_addr16_lo : 1;
25dbc73a 3237};
252b5132 3238
25dbc73a
AM
3239#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3240
3241/* PPC ELF linker hash table. */
3242
3243struct ppc_elf_link_hash_table
3244{
3245 struct elf_link_hash_table elf;
3246
5446cbdf
AM
3247 /* Various options passed from the linker. */
3248 struct ppc_elf_params *params;
3249
25dbc73a 3250 /* Short-cuts to get to dynamic linker sections. */
d7128ce4 3251 asection *glink;
25dbc73a
AM
3252 asection *dynsbss;
3253 asection *relsbss;
c9a2f333 3254 elf_linker_section_t sdata[2];
25dbc73a 3255 asection *sbss;
6177242a 3256 asection *glink_eh_frame;
25dbc73a 3257
016687f8
AM
3258 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3259 asection *srelplt2;
3260
1d483afe 3261 /* Shortcut to __tls_get_addr. */
25dbc73a 3262 struct elf_link_hash_entry *tls_get_addr;
252b5132 3263
016687f8
AM
3264 /* The bfd that forced an old-style PLT. */
3265 bfd *old_bfd;
5b914448 3266
25dbc73a
AM
3267 /* TLS local dynamic got entry handling. */
3268 union {
3269 bfd_signed_vma refcount;
3270 bfd_vma offset;
3271 } tlsld_got;
252b5132 3272
c6dd29ce 3273 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3274 bfd_vma glink_pltresolve;
3275
3b36f7e6
AM
3276 /* Size of reserved GOT entries. */
3277 unsigned int got_header_size;
3278 /* Non-zero if allocating the header left a gap. */
3279 unsigned int got_gap;
3280
4a3dc543
RS
3281 /* The type of PLT we have chosen to use. */
3282 enum ppc_elf_plt_type plt_type;
3283
9d8504b1 3284 /* True if the target system is VxWorks. */
016687f8 3285 unsigned int is_vxworks:1;
9d8504b1 3286
82e66161
AM
3287 /* Whether there exist local gnu indirect function resolvers,
3288 referenced by dynamic relocations. */
3289 unsigned int local_ifunc_resolver:1;
3290 unsigned int maybe_local_ifunc_resolver:1;
3291
9a23f96e
AM
3292 /* Set if tls optimization is enabled. */
3293 unsigned int do_tls_opt:1;
3294
9d8504b1
PB
3295 /* The size of PLT entries. */
3296 int plt_entry_size;
3297 /* The distance between adjacent PLT slots. */
3298 int plt_slot_size;
3299 /* The size of the first PLT entry. */
3300 int plt_initial_entry_size;
016687f8 3301
87d72d41
AM
3302 /* Small local sym cache. */
3303 struct sym_cache sym_cache;
25dbc73a 3304};
252b5132 3305
94caa966
AM
3306/* Rename some of the generic section flags to better document how they
3307 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3308
3309/* Nonzero if this section has TLS related relocations. */
3310#define has_tls_reloc sec_flg0
3311
3312/* Nonzero if this section has a call to __tls_get_addr. */
3313#define has_tls_get_addr_call sec_flg1
3314
25dbc73a 3315/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3316
25dbc73a 3317#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3318 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3319 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3320
25dbc73a 3321/* Create an entry in a PPC ELF linker hash table. */
252b5132 3322
25dbc73a
AM
3323static struct bfd_hash_entry *
3324ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3325 struct bfd_hash_table *table,
3326 const char *string)
252b5132 3327{
25dbc73a
AM
3328 /* Allocate the structure if it has not already been allocated by a
3329 subclass. */
3330 if (entry == NULL)
3331 {
3332 entry = bfd_hash_allocate (table,
3333 sizeof (struct ppc_elf_link_hash_entry));
3334 if (entry == NULL)
3335 return entry;
3336 }
252b5132 3337
25dbc73a
AM
3338 /* Call the allocation method of the superclass. */
3339 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3340 if (entry != NULL)
3341 {
3342 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3343 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3344 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3345 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3346 }
252b5132 3347
25dbc73a 3348 return entry;
252b5132 3349}
3dab13f6 3350
25dbc73a 3351/* Create a PPC ELF linker hash table. */
3dab13f6 3352
25dbc73a
AM
3353static struct bfd_link_hash_table *
3354ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3355{
25dbc73a 3356 struct ppc_elf_link_hash_table *ret;
76e7a751 3357 static struct ppc_elf_params default_params
08dc996f 3358 = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
3dab13f6 3359
25dbc73a
AM
3360 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3361 if (ret == NULL)
3362 return NULL;
3dab13f6 3363
66eb6687
AM
3364 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3365 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3366 sizeof (struct ppc_elf_link_hash_entry),
3367 PPC32_ELF_DATA))
3dab13f6 3368 {
25dbc73a
AM
3369 free (ret);
3370 return NULL;
3371 }
58111eb7 3372
a6aa5195
AM
3373 ret->elf.init_plt_refcount.refcount = 0;
3374 ret->elf.init_plt_refcount.glist = NULL;
3375 ret->elf.init_plt_offset.offset = 0;
3376 ret->elf.init_plt_offset.glist = NULL;
3377
db434ba0
AM
3378 ret->params = &default_params;
3379
c9a2f333
AM
3380 ret->sdata[0].name = ".sdata";
3381 ret->sdata[0].sym_name = "_SDA_BASE_";
3382 ret->sdata[0].bss_name = ".sbss";
3383
3384 ret->sdata[1].name = ".sdata2";
3385 ret->sdata[1].sym_name = "_SDA2_BASE_";
3386 ret->sdata[1].bss_name = ".sbss2";
3387
9d8504b1
PB
3388 ret->plt_entry_size = 12;
3389 ret->plt_slot_size = 8;
3390 ret->plt_initial_entry_size = 72;
9d8504b1 3391
25dbc73a
AM
3392 return &ret->elf.root;
3393}
3dab13f6 3394
5446cbdf
AM
3395/* Hook linker params into hash table. */
3396
3397void
3398ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
3399{
3400 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3401
3402 if (htab)
3403 htab->params = params;
76e7a751 3404 params->pagesize_p2 = bfd_log2 (params->pagesize);
5446cbdf
AM
3405}
3406
9d8504b1 3407/* Create .got and the related sections. */
3dab13f6 3408
25dbc73a
AM
3409static bfd_boolean
3410ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3411{
3412 struct ppc_elf_link_hash_table *htab;
3dab13f6 3413
25dbc73a
AM
3414 if (!_bfd_elf_create_got_section (abfd, info))
3415 return FALSE;
3dab13f6 3416
25dbc73a 3417 htab = ppc_elf_hash_table (info);
ce558b89 3418 if (!htab->is_vxworks)
9d8504b1
PB
3419 {
3420 /* The powerpc .got has a blrl instruction in it. Mark it
3421 executable. */
ce558b89
AM
3422 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3423 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3424 if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
9d8504b1
PB
3425 return FALSE;
3426 }
3dab13f6 3427
25dbc73a
AM
3428 return TRUE;
3429}
3dab13f6 3430
93d1b056
AM
3431/* Create a special linker section, used for R_PPC_EMB_SDAI16 and
3432 R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata
3433 and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */
3434
3435static bfd_boolean
3436ppc_elf_create_linker_section (bfd *abfd,
3437 struct bfd_link_info *info,
3438 flagword flags,
3439 elf_linker_section_t *lsect)
3440{
3441 asection *s;
3442
3443 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3444 | SEC_LINKER_CREATED);
3445
3446 s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
3447 if (s == NULL)
3448 return FALSE;
3449 lsect->section = s;
3450
3451 /* Define the sym on the first section of this name. */
3452 s = bfd_get_section_by_name (abfd, lsect->name);
3453
3454 lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
3455 if (lsect->sym == NULL)
3456 return FALSE;
3457 lsect->sym->root.u.def.value = 0x8000;
3458 return TRUE;
3459}
3460
e054468f
AM
3461static bfd_boolean
3462ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3463{
3464 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3465 asection *s;
3466 flagword flags;
3467
3468 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3469 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3470 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3471 htab->glink = s;
3472 if (s == NULL
5446cbdf
AM
3473 || !bfd_set_section_alignment (abfd, s,
3474 htab->params->ppc476_workaround ? 6 : 4))
e054468f
AM
3475 return FALSE;
3476
6177242a
AM
3477 if (!info->no_ld_generated_unwind_info)
3478 {
3479 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3480 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3481 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3482 htab->glink_eh_frame = s;
3483 if (s == NULL
3484 || !bfd_set_section_alignment (abfd, s, 2))
3485 return FALSE;
3486 }
3487
e054468f
AM
3488 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3489 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
ce558b89 3490 htab->elf.iplt = s;
e054468f
AM
3491 if (s == NULL
3492 || !bfd_set_section_alignment (abfd, s, 4))
3493 return FALSE;
3494
3495 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3496 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3497 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
ce558b89 3498 htab->elf.irelplt = s;
e054468f
AM
3499 if (s == NULL
3500 || ! bfd_set_section_alignment (abfd, s, 2))
3501 return FALSE;
93d1b056
AM
3502
3503 if (!ppc_elf_create_linker_section (abfd, info, 0,
3504 &htab->sdata[0]))
3505 return FALSE;
3506
3507 if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3508 &htab->sdata[1]))
3509 return FALSE;
3510
e054468f
AM
3511 return TRUE;
3512}
3513
25dbc73a
AM
3514/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3515 to output sections (just like _bfd_elf_create_dynamic_sections has
3516 to create .dynbss and .rela.bss). */
3dab13f6 3517
25dbc73a
AM
3518static bfd_boolean
3519ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3520{
3521 struct ppc_elf_link_hash_table *htab;
3522 asection *s;
3523 flagword flags;
3dab13f6 3524
25dbc73a 3525 htab = ppc_elf_hash_table (info);
3dab13f6 3526
ce558b89 3527 if (htab->elf.sgot == NULL
25dbc73a 3528 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3529 return FALSE;
3530
25dbc73a
AM
3531 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3532 return FALSE;
3dab13f6 3533
e054468f
AM
3534 if (htab->glink == NULL
3535 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3536 return FALSE;
3dab13f6 3537
14b2f831
AM
3538 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3539 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3540 htab->dynsbss = s;
3496cb2a 3541 if (s == NULL)
25dbc73a 3542 return FALSE;
3dab13f6 3543
0e1862bb 3544 if (! bfd_link_pic (info))
25dbc73a 3545 {
e054468f
AM
3546 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3547 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3548 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3549 htab->relsbss = s;
25dbc73a 3550 if (s == NULL
25dbc73a
AM
3551 || ! bfd_set_section_alignment (abfd, s, 2))
3552 return FALSE;
3553 }
3dab13f6 3554
711de32c
RS
3555 if (htab->is_vxworks
3556 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3557 return FALSE;
9d8504b1 3558
ce558b89 3559 s = htab->elf.splt;
3b36f7e6 3560 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3561 if (htab->plt_type == PLT_VXWORKS)
3562 /* The VxWorks PLT is a loaded section with contents. */
3563 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3564 return bfd_set_section_flags (abfd, s, flags);
3565}
3dab13f6 3566
25dbc73a 3567/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3568
25dbc73a 3569static void
fcfa13d2 3570ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3571 struct elf_link_hash_entry *dir,
3572 struct elf_link_hash_entry *ind)
3573{
3574 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3575
25dbc73a
AM
3576 edir = (struct ppc_elf_link_hash_entry *) dir;
3577 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3578
c79d6685
AM
3579 edir->tls_mask |= eind->tls_mask;
3580 edir->has_sda_refs |= eind->has_sda_refs;
3581
3582 /* If called to transfer flags for a weakdef during processing
3583 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3584 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3585 if (!(ELIMINATE_COPY_RELOCS
3586 && eind->elf.root.type != bfd_link_hash_indirect
3587 && edir->elf.dynamic_adjusted))
3588 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3589
e81830c5
AM
3590 if (edir->elf.versioned != versioned_hidden)
3591 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
c79d6685
AM
3592 edir->elf.ref_regular |= eind->elf.ref_regular;
3593 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3594 edir->elf.needs_plt |= eind->elf.needs_plt;
3595 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3596
25dbc73a
AM
3597 if (eind->dyn_relocs != NULL)
3598 {
3599 if (edir->dyn_relocs != NULL)
3dab13f6 3600 {
6061a67d
AM
3601 struct elf_dyn_relocs **pp;
3602 struct elf_dyn_relocs *p;
3dab13f6 3603
fcfa13d2 3604 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3605 list. Merge any entries against the same section. */
3606 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3607 {
6061a67d 3608 struct elf_dyn_relocs *q;
25dbc73a
AM
3609
3610 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3611 if (q->sec == p->sec)
3612 {
3613 q->pc_count += p->pc_count;
3614 q->count += p->count;
3615 *pp = p->next;
3616 break;
3617 }
3618 if (q == NULL)
3619 pp = &p->next;
3dab13f6 3620 }
25dbc73a 3621 *pp = edir->dyn_relocs;
3dab13f6 3622 }
25dbc73a
AM
3623
3624 edir->dyn_relocs = eind->dyn_relocs;
3625 eind->dyn_relocs = NULL;
3dab13f6 3626 }
3dab13f6 3627
68ba6d40
AM
3628 /* If we were called to copy over info for a weak sym, that's all.
3629 You might think dyn_relocs need not be copied over; After all,
3630 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3631 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3632 code in ppc_elf_adjust_dynamic_symbol needs to check for
3633 dyn_relocs in read-only sections, and it does so on what is the
3634 DIR sym here. */
3635 if (eind->elf.root.type != bfd_link_hash_indirect)
3636 return;
3637
a6aa5195
AM
3638 /* Copy over the GOT refcount entries that we may have already seen to
3639 the symbol which just became indirect. */
fcfa13d2
AM
3640 edir->elf.got.refcount += eind->elf.got.refcount;
3641 eind->elf.got.refcount = 0;
a6aa5195
AM
3642
3643 /* And plt entries. */
3644 if (eind->elf.plt.plist != NULL)
3645 {
3646 if (edir->elf.plt.plist != NULL)
3647 {
3648 struct plt_entry **entp;
3649 struct plt_entry *ent;
3650
3651 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3652 {
3653 struct plt_entry *dent;
3654
3655 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3656 if (dent->sec == ent->sec && dent->addend == ent->addend)
3657 {
3658 dent->plt.refcount += ent->plt.refcount;
3659 *entp = ent->next;
3660 break;
3661 }
3662 if (dent == NULL)
3663 entp = &ent->next;
3664 }
3665 *entp = edir->elf.plt.plist;
3666 }
3667
3668 edir->elf.plt.plist = eind->elf.plt.plist;
3669 eind->elf.plt.plist = NULL;
3670 }
3671
fcfa13d2 3672 if (eind->elf.dynindx != -1)
25dbc73a 3673 {
fcfa13d2
AM
3674 if (edir->elf.dynindx != -1)
3675 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3676 edir->elf.dynstr_index);
a6aa5195
AM
3677 edir->elf.dynindx = eind->elf.dynindx;
3678 edir->elf.dynstr_index = eind->elf.dynstr_index;
3679 eind->elf.dynindx = -1;
3680 eind->elf.dynstr_index = 0;
25dbc73a 3681 }
25dbc73a 3682}
3dab13f6 3683
25dbc73a
AM
3684/* Hook called by the linker routine which adds symbols from an object
3685 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3686
25dbc73a
AM
3687static bfd_boolean
3688ppc_elf_add_symbol_hook (bfd *abfd,
3689 struct bfd_link_info *info,
3690 Elf_Internal_Sym *sym,
3691 const char **namep ATTRIBUTE_UNUSED,
3692 flagword *flagsp ATTRIBUTE_UNUSED,
3693 asection **secp,
3694 bfd_vma *valp)
3695{
3696 if (sym->st_shndx == SHN_COMMON
0e1862bb 3697 && !bfd_link_relocatable (info)
0c8d6e5c
AM
3698 && is_ppc_elf (info->output_bfd)
3699 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3700 {
3701 /* Common symbols less than or equal to -G nn bytes are automatically
3702 put into .sbss. */
3703 struct ppc_elf_link_hash_table *htab;
3dab13f6 3704
25dbc73a
AM
3705 htab = ppc_elf_hash_table (info);
3706 if (htab->sbss == NULL)
3707 {
644285ef 3708 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3709
644285ef
AM
3710 if (!htab->elf.dynobj)
3711 htab->elf.dynobj = abfd;
3712
3496cb2a
L
3713 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3714 ".sbss",
3715 flags);
3716 if (htab->sbss == NULL)
25dbc73a 3717 return FALSE;
3dab13f6 3718 }
3dab13f6 3719
25dbc73a
AM
3720 *secp = htab->sbss;
3721 *valp = sym->st_size;
3722 }
3dab13f6 3723
a43942db 3724 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
f1885d1e
AM
3725 && (abfd->flags & DYNAMIC) == 0
3726 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
a43942db 3727 elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
e054468f 3728
25dbc73a 3729 return TRUE;
3dab13f6
AM
3730}
3731\f
25dbc73a
AM
3732/* Find a linker generated pointer with a given addend and type. */
3733
3734static elf_linker_section_pointers_t *
3735elf_find_pointer_linker_section
3736 (elf_linker_section_pointers_t *linker_pointers,
3737 bfd_vma addend,
3738 elf_linker_section_t *lsect)
252b5132 3739{
25dbc73a
AM
3740 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3741 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3742 return linker_pointers;
252b5132 3743
25dbc73a
AM
3744 return NULL;
3745}
3746
3747/* Allocate a pointer to live in a linker created section. */
3748
3749static bfd_boolean
93d1b056
AM
3750elf_allocate_pointer_linker_section (bfd *abfd,
3751 elf_linker_section_t *lsect,
3752 struct elf_link_hash_entry *h,
3753 const Elf_Internal_Rela *rel)
25dbc73a
AM
3754{
3755 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3756 elf_linker_section_pointers_t *linker_section_ptr;
3757 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3758 bfd_size_type amt;
3759
3760 BFD_ASSERT (lsect != NULL);
3761
3762 /* Is this a global symbol? */
3763 if (h != NULL)
3764 {
3765 struct ppc_elf_link_hash_entry *eh;
3766
3767 /* Has this symbol already been allocated? If so, our work is done. */
3768 eh = (struct ppc_elf_link_hash_entry *) h;
3769 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3770 rel->r_addend,
3771 lsect))
3772 return TRUE;
3773
3774 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3775 }
3776 else
3777 {
0c8d6e5c 3778 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3779
25dbc73a
AM
3780 /* Allocation of a pointer to a local symbol. */
3781 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3782
3783 /* Allocate a table to hold the local symbols if first time. */
3784 if (!ptr)
3785 {
0ffa91dd 3786 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3787
3788 amt = num_symbols;
3789 amt *= sizeof (elf_linker_section_pointers_t *);
3790 ptr = bfd_zalloc (abfd, amt);
3791
3792 if (!ptr)
3793 return FALSE;
3794
3795 elf_local_ptr_offsets (abfd) = ptr;
3796 }
3797
3798 /* Has this symbol already been allocated? If so, our work is done. */
3799 if (elf_find_pointer_linker_section (ptr[r_symndx],
3800 rel->r_addend,
3801 lsect))
3802 return TRUE;
252b5132 3803
25dbc73a 3804 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3805 }
41fcb14e 3806
25dbc73a
AM
3807 /* Allocate space for a pointer in the linker section, and allocate
3808 a new pointer record from internal memory. */
3809 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3810 amt = sizeof (elf_linker_section_pointers_t);
3811 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3812
25dbc73a 3813 if (!linker_section_ptr)
7619e7c7 3814 return FALSE;
41fcb14e 3815
25dbc73a
AM
3816 linker_section_ptr->next = *ptr_linker_section_ptr;
3817 linker_section_ptr->addend = rel->r_addend;
3818 linker_section_ptr->lsect = lsect;
25dbc73a 3819 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3820
93d1b056
AM
3821 if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
3822 return FALSE;
25dbc73a
AM
3823 linker_section_ptr->offset = lsect->section->size;
3824 lsect->section->size += 4;
7619e7c7 3825
25dbc73a
AM
3826#ifdef DEBUG
3827 fprintf (stderr,
3828 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3829 lsect->name, (long) linker_section_ptr->offset,
3830 (long) lsect->section->size);
3831#endif
7619e7c7
AM
3832
3833 return TRUE;
41fcb14e
AM
3834}
3835
e054468f 3836static struct plt_entry **
25dbc73a
AM
3837update_local_sym_info (bfd *abfd,
3838 Elf_Internal_Shdr *symtab_hdr,
3839 unsigned long r_symndx,
3840 int tls_type)
252b5132 3841{
25dbc73a 3842 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3843 struct plt_entry **local_plt;
25dbc73a 3844 char *local_got_tls_masks;
252b5132 3845
25dbc73a 3846 if (local_got_refcounts == NULL)
252b5132 3847 {
25dbc73a
AM
3848 bfd_size_type size = symtab_hdr->sh_info;
3849
e054468f
AM
3850 size *= (sizeof (*local_got_refcounts)
3851 + sizeof (*local_plt)
3852 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3853 local_got_refcounts = bfd_zalloc (abfd, size);
3854 if (local_got_refcounts == NULL)
e054468f 3855 return NULL;
25dbc73a 3856 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3857 }
41fcb14e 3858
e054468f
AM
3859 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3860 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3861 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3862 if (tls_type != PLT_IFUNC)
3863 local_got_refcounts[r_symndx] += 1;
3864 return local_plt + r_symndx;
25dbc73a 3865}
41fcb14e 3866
a6aa5195 3867static bfd_boolean
3ec01793 3868update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3869 asection *sec, bfd_vma addend)
3870{
3871 struct plt_entry *ent;
3872
32af9f6e
AM
3873 if (addend < 32768)
3874 sec = NULL;
3ec01793 3875 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3876 if (ent->sec == sec && ent->addend == addend)
3877 break;
3878 if (ent == NULL)
3879 {
3880 bfd_size_type amt = sizeof (*ent);
3881 ent = bfd_alloc (abfd, amt);
3882 if (ent == NULL)
3883 return FALSE;
3ec01793 3884 ent->next = *plist;
a6aa5195
AM
3885 ent->sec = sec;
3886 ent->addend = addend;
3887 ent->plt.refcount = 0;
3ec01793 3888 *plist = ent;
a6aa5195
AM
3889 }
3890 ent->plt.refcount += 1;
3891 return TRUE;
3892}
3893
3894static struct plt_entry *
3ec01793 3895find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3896{
3897 struct plt_entry *ent;
3898
3899 if (addend < 32768)
3900 sec = NULL;
3ec01793 3901 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3902 if (ent->sec == sec && ent->addend == addend)
3903 break;
3904 return ent;
3905}
3906
e054468f
AM
3907static bfd_boolean
3908is_branch_reloc (enum elf_ppc_reloc_type r_type)
3909{
3910 return (r_type == R_PPC_PLTREL24
3911 || r_type == R_PPC_LOCAL24PC
3912 || r_type == R_PPC_REL24
3913 || r_type == R_PPC_REL14
3914 || r_type == R_PPC_REL14_BRTAKEN
3915 || r_type == R_PPC_REL14_BRNTAKEN
3916 || r_type == R_PPC_ADDR24
3917 || r_type == R_PPC_ADDR14
3918 || r_type == R_PPC_ADDR14_BRTAKEN
dfdaec14
AJ
3919 || r_type == R_PPC_ADDR14_BRNTAKEN
3920 || r_type == R_PPC_VLE_REL24);
e054468f
AM
3921}
3922
25dbc73a
AM
3923static void
3924bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3925{
4eca0228 3926 _bfd_error_handler
695344c0 3927 /* xgettext:c-format */
25dbc73a
AM
3928 (_("%B: relocation %s cannot be used when making a shared object"),
3929 abfd,
3930 ppc_elf_howto_table[r_type]->name);
3931 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3932}
3933
25dbc73a
AM
3934/* Look through the relocs for a section during the first phase, and
3935 allocate space in the global offset table or procedure linkage
3936 table. */
252b5132 3937
b34976b6 3938static bfd_boolean
25dbc73a
AM
3939ppc_elf_check_relocs (bfd *abfd,
3940 struct bfd_link_info *info,
3941 asection *sec,
3942 const Elf_Internal_Rela *relocs)
252b5132 3943{
7619e7c7 3944 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3945 Elf_Internal_Shdr *symtab_hdr;
3946 struct elf_link_hash_entry **sym_hashes;
3947 const Elf_Internal_Rela *rel;
3948 const Elf_Internal_Rela *rel_end;
a6aa5195 3949 asection *got2, *sreloc;
727fc41e 3950 struct elf_link_hash_entry *tga;
25dbc73a 3951
0e1862bb 3952 if (bfd_link_relocatable (info))
25dbc73a 3953 return TRUE;
252b5132 3954
c87b5a93
AM
3955 /* Don't do anything special with non-loaded, non-alloced sections.
3956 In particular, any relocs in such sections should not affect GOT
3957 and PLT reference counting (ie. we don't allow them to create GOT
3958 or PLT entries), there's no possibility or desire to optimize TLS
3959 relocs, and there's not much point in propagating relocs to shared
3960 libs that the dynamic linker won't relocate. */
3961 if ((sec->flags & SEC_ALLOC) == 0)
3962 return TRUE;
3963
252b5132 3964#ifdef DEBUG
25dbc73a
AM
3965 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3966 sec, abfd);
252b5132
RH
3967#endif
3968
0c8d6e5c 3969 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3970
25dbc73a
AM
3971 /* Initialize howto table if not already done. */
3972 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3973 ppc_elf_howto_init ();
3974
7619e7c7 3975 htab = ppc_elf_hash_table (info);
25f23106
AM
3976 if (htab->glink == NULL)
3977 {
3978 if (htab->elf.dynobj == NULL)
3979 htab->elf.dynobj = abfd;
3980 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3981 return FALSE;
3982 }
727fc41e
AM
3983 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3984 FALSE, FALSE, TRUE);
0ffa91dd 3985 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3986 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3987 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3988 sreloc = NULL;
3989
3990 rel_end = relocs + sec->reloc_count;
3991 for (rel = relocs; rel < rel_end; rel++)
3992 {
3993 unsigned long r_symndx;
3994 enum elf_ppc_reloc_type r_type;
3995 struct elf_link_hash_entry *h;
727fc41e 3996 int tls_type;
cbf95972 3997 struct plt_entry **ifunc;
25dbc73a
AM
3998
3999 r_symndx = ELF32_R_SYM (rel->r_info);
4000 if (r_symndx < symtab_hdr->sh_info)
4001 h = NULL;
4002 else
973a3492
L
4003 {
4004 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4005 while (h->root.type == bfd_link_hash_indirect
4006 || h->root.type == bfd_link_hash_warning)
4007 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
4008
4009 /* PR15323, ref flags aren't set for references in the same
4010 object. */
bc4e12de 4011 h->root.non_ir_ref_regular = 1;
973a3492 4012 }
25dbc73a
AM
4013
4014 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
4015 This shows up in particular in an R_PPC_ADDR32 in the eabi
4016 startup code. */
3b36f7e6 4017 if (h != NULL
ce558b89 4018 && htab->elf.sgot == NULL
3b36f7e6 4019 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 4020 {
3b36f7e6
AM
4021 if (htab->elf.dynobj == NULL)
4022 htab->elf.dynobj = abfd;
4023 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4024 return FALSE;
4025 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 4026 }
252b5132 4027
727fc41e 4028 tls_type = 0;
de972ffa 4029 r_type = ELF32_R_TYPE (rel->r_info);
cbf95972 4030 ifunc = NULL;
06a162cf 4031 if (h == NULL && !htab->is_vxworks)
e054468f 4032 {
06a162cf
AM
4033 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4034 abfd, r_symndx);
4035 if (isym == NULL)
4036 return FALSE;
4037
0bed072f 4038 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
e054468f 4039 {
0bed072f 4040 /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */
06a162cf
AM
4041 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4042 PLT_IFUNC);
4043 if (ifunc == NULL)
e054468f
AM
4044 return FALSE;
4045
06a162cf
AM
4046 /* STT_GNU_IFUNC symbols must have a PLT entry;
4047 In a non-pie executable even when there are
4048 no plt calls. */
0e1862bb 4049 if (!bfd_link_pic (info)
0bed072f 4050 || is_branch_reloc (r_type))
e054468f 4051 {
0bed072f
AM
4052 bfd_vma addend = 0;
4053 if (r_type == R_PPC_PLTREL24)
4054 {
4055 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4056 if (bfd_link_pic (info))
0bed072f
AM
4057 addend = rel->r_addend;
4058 }
4059 if (!update_plt_info (abfd, ifunc, got2, addend))
4060 return FALSE;
e054468f
AM
4061 }
4062 }
25f23106
AM
4063 }
4064
de972ffa
AM
4065 if (!htab->is_vxworks
4066 && is_branch_reloc (r_type)
4067 && h != NULL
4068 && h == tga)
25f23106 4069 {
de972ffa
AM
4070 if (rel != relocs
4071 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
4072 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
4073 /* We have a new-style __tls_get_addr call with a marker
4074 reloc. */
4075 ;
4076 else
4077 /* Mark this section as having an old-style call. */
4078 sec->has_tls_get_addr_call = 1;
e054468f 4079 }
727fc41e 4080
25dbc73a
AM
4081 switch (r_type)
4082 {
727fc41e
AM
4083 case R_PPC_TLSGD:
4084 case R_PPC_TLSLD:
4085 /* These special tls relocs tie a call to __tls_get_addr with
4086 its parameter symbol. */
4087 break;
4088
25dbc73a
AM
4089 case R_PPC_GOT_TLSLD16:
4090 case R_PPC_GOT_TLSLD16_LO:
4091 case R_PPC_GOT_TLSLD16_HI:
4092 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4093 tls_type = TLS_TLS | TLS_LD;
4094 goto dogottls;
252b5132 4095
25dbc73a
AM
4096 case R_PPC_GOT_TLSGD16:
4097 case R_PPC_GOT_TLSGD16_LO:
4098 case R_PPC_GOT_TLSGD16_HI:
4099 case R_PPC_GOT_TLSGD16_HA:
4100 tls_type = TLS_TLS | TLS_GD;
4101 goto dogottls;
4102
4103 case R_PPC_GOT_TPREL16:
4104 case R_PPC_GOT_TPREL16_LO:
4105 case R_PPC_GOT_TPREL16_HI:
4106 case R_PPC_GOT_TPREL16_HA:
7c8bbca5 4107 if (bfd_link_dll (info))
25dbc73a
AM
4108 info->flags |= DF_STATIC_TLS;
4109 tls_type = TLS_TLS | TLS_TPREL;
4110 goto dogottls;
4111
4112 case R_PPC_GOT_DTPREL16:
4113 case R_PPC_GOT_DTPREL16_LO:
4114 case R_PPC_GOT_DTPREL16_HI:
4115 case R_PPC_GOT_DTPREL16_HA:
4116 tls_type = TLS_TLS | TLS_DTPREL;
4117 dogottls:
4118 sec->has_tls_reloc = 1;
1a0670f3 4119 /* Fall through. */
252b5132 4120
25dbc73a
AM
4121 /* GOT16 relocations */
4122 case R_PPC_GOT16:
4123 case R_PPC_GOT16_LO:
4124 case R_PPC_GOT16_HI:
4125 case R_PPC_GOT16_HA:
4126 /* This symbol requires a global offset table entry. */
ce558b89 4127 if (htab->elf.sgot == NULL)
25dbc73a
AM
4128 {
4129 if (htab->elf.dynobj == NULL)
4130 htab->elf.dynobj = abfd;
4131 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4132 return FALSE;
4133 }
4134 if (h != NULL)
4135 {
4136 h->got.refcount += 1;
4137 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4138 }
4139 else
4140 /* This is a global offset table entry for a local symbol. */
4141 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4142 return FALSE;
91e21fb7
AM
4143
4144 /* We may also need a plt entry if the symbol turns out to be
4145 an ifunc. */
0e1862bb 4146 if (h != NULL && !bfd_link_pic (info))
91e21fb7
AM
4147 {
4148 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4149 return FALSE;
4150 }
25dbc73a 4151 break;
252b5132 4152
25dbc73a
AM
4153 /* Indirect .sdata relocation. */
4154 case R_PPC_EMB_SDAI16:
0e1862bb 4155 if (bfd_link_pic (info))
25dbc73a
AM
4156 {
4157 bad_shared_reloc (abfd, r_type);
4158 return FALSE;
4159 }
93d1b056
AM
4160 htab->sdata[0].sym->ref_regular = 1;
4161 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
4162 h, rel))
25dbc73a 4163 return FALSE;
046183de
AM
4164 if (h != NULL)
4165 {
4166 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4167 h->non_got_ref = TRUE;
4168 }
25dbc73a 4169 break;
252b5132 4170
25dbc73a
AM
4171 /* Indirect .sdata2 relocation. */
4172 case R_PPC_EMB_SDA2I16:
0e1862bb 4173 if (bfd_link_pic (info))
25dbc73a
AM
4174 {
4175 bad_shared_reloc (abfd, r_type);
4176 return FALSE;
4177 }
93d1b056
AM
4178 htab->sdata[1].sym->ref_regular = 1;
4179 if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
4180 h, rel))
25dbc73a 4181 return FALSE;
046183de
AM
4182 if (h != NULL)
4183 {
4184 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4185 h->non_got_ref = TRUE;
4186 }
25dbc73a 4187 break;
252b5132 4188
93d1b056
AM
4189 case R_PPC_SDAREL16:
4190 htab->sdata[0].sym->ref_regular = 1;
1a0670f3 4191 /* Fall through. */
93d1b056 4192
b9c361e0
JL
4193 case R_PPC_VLE_SDAREL_LO16A:
4194 case R_PPC_VLE_SDAREL_LO16D:
4195 case R_PPC_VLE_SDAREL_HI16A:
4196 case R_PPC_VLE_SDAREL_HI16D:
4197 case R_PPC_VLE_SDAREL_HA16A:
4198 case R_PPC_VLE_SDAREL_HA16D:
046183de
AM
4199 if (h != NULL)
4200 {
4201 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4202 h->non_got_ref = TRUE;
4203 }
4204 break;
4205
b9c361e0
JL
4206 case R_PPC_VLE_REL8:
4207 case R_PPC_VLE_REL15:
4208 case R_PPC_VLE_REL24:
4209 case R_PPC_VLE_LO16A:
4210 case R_PPC_VLE_LO16D:
4211 case R_PPC_VLE_HI16A:
4212 case R_PPC_VLE_HI16D:
4213 case R_PPC_VLE_HA16A:
4214 case R_PPC_VLE_HA16D:
83eef883 4215 case R_PPC_VLE_ADDR20:
b9c361e0
JL
4216 break;
4217
25dbc73a 4218 case R_PPC_EMB_SDA2REL:
0e1862bb 4219 if (bfd_link_pic (info))
046183de
AM
4220 {
4221 bad_shared_reloc (abfd, r_type);
4222 return FALSE;
4223 }
93d1b056 4224 htab->sdata[1].sym->ref_regular = 1;
046183de
AM
4225 if (h != NULL)
4226 {
4227 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4228 h->non_got_ref = TRUE;
4229 }
4230 break;
4231
b9c361e0
JL
4232 case R_PPC_VLE_SDA21_LO:
4233 case R_PPC_VLE_SDA21:
25dbc73a
AM
4234 case R_PPC_EMB_SDA21:
4235 case R_PPC_EMB_RELSDA:
0e1862bb 4236 if (bfd_link_pic (info))
046183de
AM
4237 {
4238 bad_shared_reloc (abfd, r_type);
4239 return FALSE;
4240 }
046183de
AM
4241 if (h != NULL)
4242 {
4243 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4244 h->non_got_ref = TRUE;
4245 }
4246 break;
4247
25dbc73a
AM
4248 case R_PPC_EMB_NADDR32:
4249 case R_PPC_EMB_NADDR16:
4250 case R_PPC_EMB_NADDR16_LO:
4251 case R_PPC_EMB_NADDR16_HI:
4252 case R_PPC_EMB_NADDR16_HA:
0e1862bb 4253 if (bfd_link_pic (info))
25dbc73a
AM
4254 {
4255 bad_shared_reloc (abfd, r_type);
4256 return FALSE;
4257 }
4dc4a9a5 4258 if (h != NULL)
046183de 4259 h->non_got_ref = TRUE;
25dbc73a 4260 break;
252b5132 4261
25dbc73a 4262 case R_PPC_PLTREL24:
de972ffa 4263 if (h == NULL)
6d78d0b9
AM
4264 break;
4265 /* Fall through */
4266 case R_PPC_PLT32:
25dbc73a
AM
4267 case R_PPC_PLTREL32:
4268 case R_PPC_PLT16_LO:
4269 case R_PPC_PLT16_HI:
4270 case R_PPC_PLT16_HA:
4271#ifdef DEBUG
4272 fprintf (stderr, "Reloc requires a PLT entry\n");
4273#endif
cbf95972 4274 /* This symbol requires a procedure linkage table entry. */
25dbc73a
AM
4275 if (h == NULL)
4276 {
cbf95972
AM
4277 if (ifunc == NULL)
4278 {
4279 /* It does not make sense to have a procedure linkage
4280 table entry for a non-ifunc local symbol. */
4281 info->callbacks->einfo
695344c0 4282 /* xgettext:c-format */
174d0a74 4283 (_("%H: %s reloc against local symbol\n"),
cbf95972
AM
4284 abfd, sec, rel->r_offset,
4285 ppc_elf_howto_table[r_type]->name);
4286 bfd_set_error (bfd_error_bad_value);
4287 return FALSE;
4288 }
25dbc73a 4289 }
a6aa5195
AM
4290 else
4291 {
016687f8 4292 bfd_vma addend = 0;
ee05f2fe 4293
016687f8
AM
4294 if (r_type == R_PPC_PLTREL24)
4295 {
4296 ppc_elf_tdata (abfd)->makes_plt_call = 1;
0e1862bb 4297 if (bfd_link_pic (info))
a877a2b6 4298 addend = rel->r_addend;
016687f8 4299 }
a6aa5195 4300 h->needs_plt = 1;
32af9f6e 4301 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4302 return FALSE;
4303 }
25dbc73a 4304 break;
ee05f2fe 4305
25dbc73a
AM
4306 /* The following relocations don't need to propagate the
4307 relocation if linking a shared object since they are
4308 section relative. */
4309 case R_PPC_SECTOFF:
4310 case R_PPC_SECTOFF_LO:
4311 case R_PPC_SECTOFF_HI:
4312 case R_PPC_SECTOFF_HA:
4313 case R_PPC_DTPREL16:
4314 case R_PPC_DTPREL16_LO:
4315 case R_PPC_DTPREL16_HI:
4316 case R_PPC_DTPREL16_HA:
4317 case R_PPC_TOC16:
4318 break;
252b5132 4319
d7128ce4
AM
4320 case R_PPC_REL16:
4321 case R_PPC_REL16_LO:
4322 case R_PPC_REL16_HI:
4323 case R_PPC_REL16_HA:
a680de9a 4324 case R_PPC_REL16DX_HA:
016687f8 4325 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4326 break;
4327
a6aa5195 4328 /* These are just markers. */
25dbc73a
AM
4329 case R_PPC_TLS:
4330 case R_PPC_EMB_MRKREF:
4331 case R_PPC_NONE:
4332 case R_PPC_max:
32af9f6e
AM
4333 case R_PPC_RELAX:
4334 case R_PPC_RELAX_PLT:
4335 case R_PPC_RELAX_PLTREL24:
7ba71655 4336 case R_PPC_16DX_HA:
25dbc73a 4337 break;
252b5132 4338
25dbc73a
AM
4339 /* These should only appear in dynamic objects. */
4340 case R_PPC_COPY:
4341 case R_PPC_GLOB_DAT:
4342 case R_PPC_JMP_SLOT:
4343 case R_PPC_RELATIVE:
e054468f 4344 case R_PPC_IRELATIVE:
25dbc73a 4345 break;
252b5132 4346
25dbc73a
AM
4347 /* These aren't handled yet. We'll report an error later. */
4348 case R_PPC_ADDR30:
4349 case R_PPC_EMB_RELSEC16:
4350 case R_PPC_EMB_RELST_LO:
4351 case R_PPC_EMB_RELST_HI:
4352 case R_PPC_EMB_RELST_HA:
4353 case R_PPC_EMB_BIT_FLD:
4354 break;
252b5132 4355
25dbc73a
AM
4356 /* This refers only to functions defined in the shared library. */
4357 case R_PPC_LOCAL24PC:
727fc41e 4358 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4359 {
4360 htab->plt_type = PLT_OLD;
4361 htab->old_bfd = abfd;
4362 }
c7e17e05
AM
4363 if (h != NULL && h->type == STT_GNU_IFUNC)
4364 {
c7e17e05
AM
4365 h->needs_plt = 1;
4366 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4367 return FALSE;
4368 }
25dbc73a 4369 break;
252b5132 4370
25dbc73a
AM
4371 /* This relocation describes the C++ object vtable hierarchy.
4372 Reconstruct it for later use during GC. */
4373 case R_PPC_GNU_VTINHERIT:
4374 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4375 return FALSE;
4376 break;
252b5132 4377
25dbc73a
AM
4378 /* This relocation describes which C++ vtable entries are actually
4379 used. Record for later use during GC. */
4380 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4381 BFD_ASSERT (h != NULL);
4382 if (h != NULL
4383 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4384 return FALSE;
4385 break;
252b5132 4386
7c8bbca5 4387 /* We shouldn't really be seeing TPREL32. */
25dbc73a 4388 case R_PPC_TPREL32:
1d483afe
AM
4389 case R_PPC_TPREL16:
4390 case R_PPC_TPREL16_LO:
4391 case R_PPC_TPREL16_HI:
4392 case R_PPC_TPREL16_HA:
7c8bbca5 4393 if (bfd_link_dll (info))
25dbc73a
AM
4394 info->flags |= DF_STATIC_TLS;
4395 goto dodyn;
252b5132 4396
25dbc73a
AM
4397 /* Nor these. */
4398 case R_PPC_DTPMOD32:
4399 case R_PPC_DTPREL32:
4400 goto dodyn;
252b5132 4401
9edfd1af
AM
4402 case R_PPC_REL32:
4403 if (h == NULL
4404 && got2 != NULL
4405 && (sec->flags & SEC_CODE) != 0
0e1862bb 4406 && bfd_link_pic (info)
4a3dc543 4407 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4408 {
4409 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4410 the start of a function, which assembles to a REL32
4411 reference to .got2. If we detect one of these, then
4412 force the old PLT layout because the linker cannot
4413 reliably deduce the GOT pointer value needed for
4414 PLT call stubs. */
4415 asection *s;
87d72d41 4416 Elf_Internal_Sym *isym;
9edfd1af 4417
87d72d41
AM
4418 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4419 abfd, r_symndx);
4420 if (isym == NULL)
4421 return FALSE;
4422
4423 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4424 if (s == got2)
016687f8
AM
4425 {
4426 htab->plt_type = PLT_OLD;
4427 htab->old_bfd = abfd;
4428 }
9edfd1af 4429 }
7123df0e 4430 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4431 break;
625af618
AM
4432 /* fall through */
4433
4434 case R_PPC_ADDR32:
4435 case R_PPC_ADDR16:
4436 case R_PPC_ADDR16_LO:
4437 case R_PPC_ADDR16_HI:
4438 case R_PPC_ADDR16_HA:
4439 case R_PPC_UADDR32:
4440 case R_PPC_UADDR16:
0e1862bb 4441 if (h != NULL && !bfd_link_pic (info))
625af618
AM
4442 {
4443 /* We may need a plt entry if the symbol turns out to be
4444 a function defined in a dynamic object. */
3ec01793 4445 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4446 return FALSE;
4447
4448 /* We may need a copy reloc too. */
4449 h->non_got_ref = 1;
4450 h->pointer_equality_needed = 1;
d3e454b9
AM
4451 if (r_type == R_PPC_ADDR16_HA)
4452 ppc_elf_hash_entry (h)->has_addr16_ha = 1;
4453 if (r_type == R_PPC_ADDR16_LO)
4454 ppc_elf_hash_entry (h)->has_addr16_lo = 1;
625af618
AM
4455 }
4456 goto dodyn;
9edfd1af 4457
25dbc73a
AM
4458 case R_PPC_REL24:
4459 case R_PPC_REL14:
4460 case R_PPC_REL14_BRTAKEN:
4461 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4462 if (h == NULL)
25dbc73a 4463 break;
7123df0e 4464 if (h == htab->elf.hgot)
d7128ce4 4465 {
7123df0e 4466 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4467 {
4468 htab->plt_type = PLT_OLD;
4469 htab->old_bfd = abfd;
4470 }
d7128ce4
AM
4471 break;
4472 }
25dbc73a 4473 /* fall through */
ee05f2fe 4474
25dbc73a 4475 case R_PPC_ADDR24:
25dbc73a
AM
4476 case R_PPC_ADDR14:
4477 case R_PPC_ADDR14_BRTAKEN:
4478 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 4479 if (h != NULL && !bfd_link_pic (info))
25dbc73a
AM
4480 {
4481 /* We may need a plt entry if the symbol turns out to be
4482 a function defined in a dynamic object. */
e054468f 4483 h->needs_plt = 1;
de972ffa 4484 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4485 return FALSE;
625af618 4486 break;
25dbc73a 4487 }
7619e7c7 4488
25dbc73a
AM
4489 dodyn:
4490 /* If we are creating a shared library, and this is a reloc
4491 against a global symbol, or a non PC relative reloc
4492 against a local symbol, then we need to copy the reloc
4493 into the shared library. However, if we are linking with
4494 -Bsymbolic, we do not need to copy a reloc against a
4495 global symbol which is defined in an object we are
4496 including in the link (i.e., DEF_REGULAR is set). At
4497 this point we have not seen all the input files, so it is
4498 possible that DEF_REGULAR is not set now but will be set
4499 later (it is never cleared). In case of a weak definition,
4500 DEF_REGULAR may be cleared later by a strong definition in
4501 a shared library. We account for that possibility below by
4502 storing information in the dyn_relocs field of the hash
4503 table entry. A similar situation occurs when creating
4504 shared libraries and symbol visibility changes render the
4505 symbol local.
7619e7c7 4506
25dbc73a
AM
4507 If on the other hand, we are creating an executable, we
4508 may need to keep relocations for symbols satisfied by a
4509 dynamic library if we manage to avoid copy relocs for the
4510 symbol. */
0e1862bb 4511 if ((bfd_link_pic (info)
1d483afe 4512 && (must_be_dyn_reloc (info, r_type)
25dbc73a 4513 || (h != NULL
198f1157 4514 && (!SYMBOLIC_BIND (info, h)
25dbc73a
AM
4515 || h->root.type == bfd_link_hash_defweak
4516 || !h->def_regular))))
4517 || (ELIMINATE_COPY_RELOCS
0e1862bb 4518 && !bfd_link_pic (info)
25dbc73a
AM
4519 && h != NULL
4520 && (h->root.type == bfd_link_hash_defweak
de972ffa 4521 || !h->def_regular)))
25dbc73a 4522 {
25dbc73a
AM
4523#ifdef DEBUG
4524 fprintf (stderr,
4525 "ppc_elf_check_relocs needs to "
4526 "create relocation for %s\n",
4527 (h && h->root.root.string
4528 ? h->root.root.string : "<unknown>"));
4529#endif
4530 if (sreloc == NULL)
4531 {
c9a2f333
AM
4532 if (htab->elf.dynobj == NULL)
4533 htab->elf.dynobj = abfd;
83bac4b0
NC
4534
4535 sreloc = _bfd_elf_make_dynamic_reloc_section
4536 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4537
25dbc73a 4538 if (sreloc == NULL)
83bac4b0 4539 return FALSE;
25dbc73a 4540 }
7619e7c7 4541
25dbc73a
AM
4542 /* If this is a global symbol, we count the number of
4543 relocations we need for this symbol. */
4544 if (h != NULL)
4545 {
f95f8542
AM
4546 struct elf_dyn_relocs *p;
4547 struct elf_dyn_relocs **rel_head;
4548
91d6fa6a 4549 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
f95f8542
AM
4550 p = *rel_head;
4551 if (p == NULL || p->sec != sec)
4552 {
4553 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4554 if (p == NULL)
4555 return FALSE;
4556 p->next = *rel_head;
4557 *rel_head = p;
4558 p->sec = sec;
4559 p->count = 0;
4560 p->pc_count = 0;
4561 }
4562 p->count += 1;
4563 if (!must_be_dyn_reloc (info, r_type))
4564 p->pc_count += 1;
25dbc73a
AM
4565 }
4566 else
4567 {
4568 /* Track dynamic relocs needed for local syms too.
4569 We really need local syms available to do this
4570 easily. Oh well. */
f95f8542
AM
4571 struct ppc_dyn_relocs *p;
4572 struct ppc_dyn_relocs **rel_head;
4573 bfd_boolean is_ifunc;
25dbc73a 4574 asection *s;
6edfbbad 4575 void *vpp;
87d72d41 4576 Elf_Internal_Sym *isym;
6edfbbad 4577
87d72d41
AM
4578 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4579 abfd, r_symndx);
4580 if (isym == NULL)
25dbc73a 4581 return FALSE;
7fce784e 4582
87d72d41
AM
4583 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4584 if (s == NULL)
4585 s = sec;
4586
6edfbbad 4587 vpp = &elf_section_data (s)->local_dynrel;
f95f8542
AM
4588 rel_head = (struct ppc_dyn_relocs **) vpp;
4589 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
4590 p = *rel_head;
4591 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
4592 p = p->next;
4593 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
4594 {
4595 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4596 if (p == NULL)
4597 return FALSE;
4598 p->next = *rel_head;
4599 *rel_head = p;
4600 p->sec = sec;
4601 p->ifunc = is_ifunc;
4602 p->count = 0;
4603 }
4604 p->count += 1;
25dbc73a 4605 }
7619e7c7 4606 }
25dbc73a
AM
4607
4608 break;
7619e7c7
AM
4609 }
4610 }
ee05f2fe 4611
25dbc73a
AM
4612 return TRUE;
4613}
4614\f
005d79fd
AM
4615/* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
4616 and OBFD, and merge non-conflicting ones. */
4617void
50e03d47 4618_bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
34c8bcba 4619{
50e03d47 4620 bfd *obfd = info->output_bfd;
c6e65352
DJ
4621 obj_attribute *in_attr, *in_attrs;
4622 obj_attribute *out_attr, *out_attrs;
34c8bcba 4623
c6e65352
DJ
4624 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4625 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4626
c6e65352
DJ
4627 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4628 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
005d79fd 4629
c6e65352 4630 if (in_attr->i != out_attr->i)
34c8bcba 4631 {
005d79fd
AM
4632 int in_fp = in_attr->i & 3;
4633 int out_fp = out_attr->i & 3;
4634
4635 if (in_fp == 0)
34c8bcba 4636 ;
005d79fd
AM
4637 else if (out_fp == 0)
4638 {
4639 out_attr->type = 1;
4640 out_attr->i ^= in_fp;
4641 }
4642 else if (out_fp != 2 && in_fp == 2)
34c8bcba 4643 _bfd_error_handler
695344c0 4644 /* xgettext:c-format */
34c8bcba 4645 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
005d79fd
AM
4646 else if (out_fp == 2 && in_fp != 2)
4647 _bfd_error_handler
695344c0 4648 /* xgettext:c-format */
005d79fd
AM
4649 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
4650 else if (out_fp == 1 && in_fp == 3)
3c7b9897 4651 _bfd_error_handler
695344c0 4652 /* xgettext:c-format */
005d79fd
AM
4653 (_("Warning: %B uses double-precision hard float, "
4654 "%B uses single-precision hard float"), obfd, ibfd);
4655 else if (out_fp == 3 && in_fp == 1)
3c7b9897 4656 _bfd_error_handler
695344c0 4657 /* xgettext:c-format */
005d79fd
AM
4658 (_("Warning: %B uses double-precision hard float, "
4659 "%B uses single-precision hard float"), ibfd, obfd);
4660
4661 in_fp = in_attr->i & 0xc;
4662 out_fp = out_attr->i & 0xc;
4663 if (in_fp == 0)
4664 ;
4665 else if (out_fp == 0)
4666 {
4667 out_attr->type = 1;
4668 out_attr->i ^= in_fp;
4669 }
4670 else if (out_fp != 2 * 4 && in_fp == 2 * 4)
3c7b9897 4671 _bfd_error_handler
695344c0 4672 /* xgettext:c-format */
005d79fd
AM
4673 (_("Warning: %B uses 64-bit long double, "
4674 "%B uses 128-bit long double"), ibfd, obfd);
4675 else if (in_fp != 2 * 4 && out_fp == 2 * 4)
34c8bcba 4676 _bfd_error_handler
695344c0 4677 /* xgettext:c-format */
005d79fd
AM
4678 (_("Warning: %B uses 64-bit long double, "
4679 "%B uses 128-bit long double"), obfd, ibfd);
4680 else if (out_fp == 1 * 4 && in_fp == 3 * 4)
34c8bcba 4681 _bfd_error_handler
695344c0 4682 /* xgettext:c-format */
005d79fd
AM
4683 (_("Warning: %B uses IBM long double, "
4684 "%B uses IEEE long double"), ibfd, obfd);
4685 else if (out_fp == 3 * 4 && in_fp == 1 * 4)
34c8bcba 4686 _bfd_error_handler
695344c0 4687 /* xgettext:c-format */
005d79fd
AM
4688 (_("Warning: %B uses IBM long double, "
4689 "%B uses IEEE long double"), obfd, ibfd);
c6e65352 4690 }
005d79fd
AM
4691}
4692
4693/* Merge object attributes from IBFD into OBFD. Warn if
4694 there are conflicting attributes. */
4695static bfd_boolean
50e03d47 4696ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
005d79fd 4697{
50e03d47 4698 bfd *obfd;
005d79fd
AM
4699 obj_attribute *in_attr, *in_attrs;
4700 obj_attribute *out_attr, *out_attrs;
4701
50e03d47 4702 _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
005d79fd 4703
50e03d47 4704 obfd = info->output_bfd;
005d79fd
AM
4705 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4706 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
c6e65352
DJ
4707
4708 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4709 merge non-conflicting ones. */
4710 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4711 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4712 if (in_attr->i != out_attr->i)
4713 {
005d79fd
AM
4714 int in_vec = in_attr->i & 3;
4715 int out_vec = out_attr->i & 3;
c6e65352 4716
005d79fd
AM
4717 if (in_vec == 0)
4718 ;
4719 else if (out_vec == 0)
c6e65352 4720 {
005d79fd
AM
4721 out_attr->type = 1;
4722 out_attr->i = in_vec;
c6e65352 4723 }
c6e65352
DJ
4724 /* For now, allow generic to transition to AltiVec or SPE
4725 without a warning. If GCC marked files with their stack
4726 alignment and used don't-care markings for files which are
4727 not affected by the vector ABI, we could warn about this
4728 case too. */
005d79fd 4729 else if (in_vec == 1)
c6e65352 4730 ;
005d79fd
AM
4731 else if (out_vec == 1)
4732 {
4733 out_attr->type = 1;
4734 out_attr->i = in_vec;
4735 }
4736 else if (out_vec < in_vec)
c6e65352 4737 _bfd_error_handler
695344c0 4738 /* xgettext:c-format */
005d79fd
AM
4739 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4740 obfd, ibfd);
4741 else if (out_vec > in_vec)
c6e65352 4742 _bfd_error_handler
695344c0 4743 /* xgettext:c-format */
005d79fd
AM
4744 (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
4745 ibfd, obfd);
34c8bcba
JM
4746 }
4747
f82e0623
NF
4748 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4749 and merge non-conflicting ones. */
4750 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4751 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4752 if (in_attr->i != out_attr->i)
4753 {
005d79fd
AM
4754 int in_struct = in_attr->i & 3;
4755 int out_struct = out_attr->i & 3;
4756
4757 if (in_struct == 0 || in_struct == 3)
f82e0623 4758 ;
005d79fd
AM
4759 else if (out_struct == 0)
4760 {
4761 out_attr->type = 1;
4762 out_attr->i = in_struct;
4763 }
4764 else if (out_struct < in_struct)
4765 _bfd_error_handler
695344c0 4766 /* xgettext:c-format */
005d79fd
AM
4767 (_("Warning: %B uses r3/r4 for small structure returns, "
4768 "%B uses memory"), obfd, ibfd);
4769 else if (out_struct > in_struct)
4770 _bfd_error_handler
695344c0 4771 /* xgettext:c-format */
005d79fd
AM
4772 (_("Warning: %B uses r3/r4 for small structure returns, "
4773 "%B uses memory"), ibfd, obfd);
f82e0623
NF
4774 }
4775
34c8bcba 4776 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4777 _bfd_elf_merge_object_attributes (ibfd, info);
34c8bcba
JM
4778
4779 return TRUE;
4780}
4781
8853c3d3
AM
4782/* Merge backend specific data from an object file to the output
4783 object file when linking. */
4784
4785static bfd_boolean
50e03d47 4786ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
8853c3d3 4787{
50e03d47 4788 bfd *obfd = info->output_bfd;
8853c3d3
AM
4789 flagword old_flags;
4790 flagword new_flags;
4791 bfd_boolean error;
4792
0c8d6e5c 4793 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4794 return TRUE;
4795
cc643b88 4796 /* Check if we have the same endianness. */
50e03d47 4797 if (! _bfd_generic_verify_endian_match (ibfd, info))
8853c3d3
AM
4798 return FALSE;
4799
50e03d47 4800 if (!ppc_elf_merge_obj_attributes (ibfd, info))
34c8bcba
JM
4801 return FALSE;
4802
8853c3d3
AM
4803 new_flags = elf_elfheader (ibfd)->e_flags;
4804 old_flags = elf_elfheader (obfd)->e_flags;
4805 if (!elf_flags_init (obfd))
4806 {
4807 /* First call, no flags set. */
4808 elf_flags_init (obfd) = TRUE;
4809 elf_elfheader (obfd)->e_flags = new_flags;
4810 }
4811
4812 /* Compatible flags are ok. */
4813 else if (new_flags == old_flags)
4814 ;
4815
4816 /* Incompatible flags. */
4817 else
4818 {
4819 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4820 to be linked with either. */
4821 error = FALSE;
4822 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4823 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4824 {
4825 error = TRUE;
4eca0228 4826 _bfd_error_handler
8853c3d3
AM
4827 (_("%B: compiled with -mrelocatable and linked with "
4828 "modules compiled normally"), ibfd);
4829 }
4830 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4831 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4832 {
4833 error = TRUE;
4eca0228 4834 _bfd_error_handler
8853c3d3
AM
4835 (_("%B: compiled normally and linked with "
4836 "modules compiled with -mrelocatable"), ibfd);
4837 }
4838
4839 /* The output is -mrelocatable-lib iff both the input files are. */
4840 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4841 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4842
4843 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4844 but each input file is either -mrelocatable or -mrelocatable-lib. */
4845 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4846 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4847 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4848 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4849
4850 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4851 any module uses it. */
4852 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4853
4854 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4855 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4856
4857 /* Warn about any other mismatches. */
4858 if (new_flags != old_flags)
4859 {
4860 error = TRUE;
4eca0228 4861 _bfd_error_handler
695344c0 4862 /* xgettext:c-format */
cd9af601
AM
4863 (_("%B: uses different e_flags (%#x) fields "
4864 "than previous modules (%#x)"),
4865 ibfd, new_flags, old_flags);
8853c3d3
AM
4866 }
4867
4868 if (error)
4869 {
4870 bfd_set_error (bfd_error_bad_value);
4871 return FALSE;
4872 }
4873 }
4874
4875 return TRUE;
4876}
b9c361e0
JL
4877
4878static void
95f0d0d2 4879ppc_elf_vle_split16 (bfd *input_bfd,
08dc996f
AM
4880 asection *input_section,
4881 unsigned long offset,
95f0d0d2 4882 bfd_byte *loc,
86c95733 4883 bfd_vma value,
08dc996f
AM
4884 split16_format_type split16_format,
4885 bfd_boolean fixup)
b9c361e0 4886{
08dc996f 4887 unsigned int insn, opcode, top5;
b9c361e0 4888
95f0d0d2 4889 insn = bfd_get_32 (input_bfd, loc);
673cff9b 4890 opcode = insn & 0xfc00f800;
08dc996f
AM
4891 if (opcode == E_OR2I_INSN
4892 || opcode == E_AND2I_DOT_INSN
4893 || opcode == E_OR2IS_INSN
4894 || opcode == E_LIS_INSN
4895 || opcode == E_AND2IS_DOT_INSN)
4896 {
4897 if (split16_format != split16a_type)
4898 {
4899 if (fixup)
4900 split16_format = split16a_type;
4901 else
4902 _bfd_error_handler
4903 /* xgettext:c-format */
4904 (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
4905 input_bfd, input_section, offset, opcode);
4906 }
4907 }
4908 else if (opcode == E_ADD2I_DOT_INSN
4909 || opcode == E_ADD2IS_INSN
4910 || opcode == E_CMP16I_INSN
4911 || opcode == E_MULL2I_INSN
4912 || opcode == E_CMPL16I_INSN
4913 || opcode == E_CMPH16I_INSN
4914 || opcode == E_CMPHL16I_INSN)
4915 {
4916 if (split16_format != split16d_type)
4917 {
4918 if (fixup)
4919 split16_format = split16d_type;
4920 else
4921 _bfd_error_handler
4922 /* xgettext:c-format */
4923 (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
4924 input_bfd, input_section, offset, opcode);
4925 }
4926 }
86c95733 4927 top5 = value & 0xf800;
5499c7c7
AM
4928 top5 = top5 << (split16_format == split16a_type ? 5 : 10);
4929 insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
b9c361e0 4930 insn |= top5;
86c95733 4931 insn |= value & 0x7ff;
95f0d0d2 4932 bfd_put_32 (input_bfd, insn, loc);
b9c361e0 4933}
83eef883
AFB
4934
4935static void
4936ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
4937{
4938 unsigned int insn;
4939
4940 insn = bfd_get_32 (output_bfd, loc);
4941 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
4942 /* Top 4 bits of value to 17..20. */
4943 insn |= (value & 0xf0000) >> 5;
4944 /* Next 5 bits of the value to 11..15. */
4945 insn |= (value & 0xf800) << 5;
4946 /* And the final 11 bits of the value to bits 21 to 31. */
4947 insn |= value & 0x7ff;
4948 bfd_put_32 (output_bfd, insn, loc);
4949}
4950
8853c3d3 4951\f
d7128ce4
AM
4952/* Choose which PLT scheme to use, and set .plt flags appropriately.
4953 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4954int
4955ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
5446cbdf 4956 struct bfd_link_info *info)
d7128ce4
AM
4957{
4958 struct ppc_elf_link_hash_table *htab;
9d8504b1 4959 flagword flags;
d7128ce4
AM
4960
4961 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4962
4963 if (htab->plt_type == PLT_UNSET)
016687f8 4964 {
b3874e1a
AM
4965 struct elf_link_hash_entry *h;
4966
5446cbdf 4967 if (htab->params->plt_style == PLT_OLD)
016687f8 4968 htab->plt_type = PLT_OLD;
0e1862bb 4969 else if (bfd_link_pic (info)
b3874e1a
AM
4970 && htab->elf.dynamic_sections_created
4971 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4972 FALSE, FALSE, TRUE)) != NULL
4973 && (h->type == STT_FUNC
4974 || h->needs_plt)
4975 && h->ref_regular
4976 && !(SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 4977 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
b3874e1a
AM
4978 {
4979 /* Profiling of shared libs (and pies) is not supported with
4980 secure plt, because ppc32 does profiling before a
4981 function prologue and a secure plt pic call stubs needs
4982 r30 to be set up. */
4983 htab->plt_type = PLT_OLD;
4984 }
016687f8
AM
4985 else
4986 {
4987 bfd *ibfd;
5446cbdf 4988 enum ppc_elf_plt_type plt_type = htab->params->plt_style;
016687f8
AM
4989
4990 /* Look through the reloc flags left by ppc_elf_check_relocs.
4991 Use the old style bss plt if a file makes plt calls
4992 without using the new relocs, and if ld isn't given
4993 --secure-plt and we never see REL16 relocs. */
4994 if (plt_type == PLT_UNSET)
4995 plt_type = PLT_OLD;
c72f2fb2 4996 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
0c8d6e5c 4997 if (is_ppc_elf (ibfd))
016687f8
AM
4998 {
4999 if (ppc_elf_tdata (ibfd)->has_rel16)
5000 plt_type = PLT_NEW;
5001 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
5002 {
5003 plt_type = PLT_OLD;
5004 htab->old_bfd = ibfd;
5005 break;
5006 }
5007 }
5008 htab->plt_type = plt_type;
5009 }
5010 }
5446cbdf 5011 if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
b3874e1a
AM
5012 {
5013 if (htab->old_bfd != NULL)
5014 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
5015 htab->old_bfd);
5016 else
5017 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
5018 }
d7128ce4 5019
4a3dc543 5020 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 5021
4a3dc543 5022 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
5023 {
5024 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
5025 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
5026
5027 /* The new PLT is a loaded section. */
ce558b89
AM
5028 if (htab->elf.splt != NULL
5029 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
86b9da88
AM
5030 return -1;
5031
5032 /* The new GOT is not executable. */
ce558b89
AM
5033 if (htab->elf.sgot != NULL
5034 && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
86b9da88 5035 return -1;
d7128ce4
AM
5036 }
5037 else
5038 {
5039 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
5040 if (htab->glink != NULL
5041 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
5042 return -1;
d7128ce4 5043 }
4a3dc543 5044 return htab->plt_type == PLT_NEW;
d7128ce4
AM
5045}
5046\f
25dbc73a
AM
5047/* Return the section that should be marked against GC for a given
5048 relocation. */
586119b3 5049
25dbc73a
AM
5050static asection *
5051ppc_elf_gc_mark_hook (asection *sec,
07adf181 5052 struct bfd_link_info *info,
25dbc73a
AM
5053 Elf_Internal_Rela *rel,
5054 struct elf_link_hash_entry *h,
5055 Elf_Internal_Sym *sym)
5056{
5057 if (h != NULL)
07adf181
AM
5058 switch (ELF32_R_TYPE (rel->r_info))
5059 {
5060 case R_PPC_GNU_VTINHERIT:
5061 case R_PPC_GNU_VTENTRY:
5062 return NULL;
5063 }
5064
5065 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 5066}
25dbc73a 5067\f
3a71aa26
AM
5068/* Set plt output section type, htab->tls_get_addr, and call the
5069 generic ELF tls_setup function. */
7fce784e 5070
25dbc73a 5071asection *
5446cbdf 5072ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 5073{
25dbc73a 5074 struct ppc_elf_link_hash_table *htab;
7fce784e 5075
25dbc73a 5076 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5077 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5078 FALSE, FALSE, TRUE);
f01f1741
AM
5079 if (htab->plt_type != PLT_NEW)
5080 htab->params->no_tls_get_addr_opt = TRUE;
5081
5446cbdf 5082 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM
5083 {
5084 struct elf_link_hash_entry *opt, *tga;
5085 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5086 FALSE, FALSE, TRUE);
5087 if (opt != NULL
5088 && (opt->root.type == bfd_link_hash_defined
5089 || opt->root.type == bfd_link_hash_defweak))
5090 {
5091 /* If glibc supports an optimized __tls_get_addr call stub,
5092 signalled by the presence of __tls_get_addr_opt, and we'll
5093 be calling __tls_get_addr via a plt call stub, then
5094 make __tls_get_addr point to __tls_get_addr_opt. */
5095 tga = htab->tls_get_addr;
5096 if (htab->elf.dynamic_sections_created
5097 && tga != NULL
5098 && (tga->type == STT_FUNC
5099 || tga->needs_plt)
5100 && !(SYMBOL_CALLS_LOCAL (info, tga)
21d68fcd 5101 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
a7f2871e
AM
5102 {
5103 struct plt_entry *ent;
32af9f6e
AM
5104 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5105 if (ent->plt.refcount > 0)
5106 break;
5107 if (ent != NULL)
a7f2871e
AM
5108 {
5109 tga->root.type = bfd_link_hash_indirect;
5110 tga->root.u.i.link = &opt->root;
5111 ppc_elf_copy_indirect_symbol (info, opt, tga);
b531344c 5112 opt->mark = 1;
a7f2871e
AM
5113 if (opt->dynindx != -1)
5114 {
5115 /* Use __tls_get_addr_opt in dynamic relocations. */
5116 opt->dynindx = -1;
5117 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5118 opt->dynstr_index);
5119 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5120 return FALSE;
5121 }
5122 htab->tls_get_addr = opt;
5123 }
5124 }
5125 }
5126 else
5446cbdf 5127 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 5128 }
4a3dc543 5129 if (htab->plt_type == PLT_NEW
ce558b89
AM
5130 && htab->elf.splt != NULL
5131 && htab->elf.splt->output_section != NULL)
d7128ce4 5132 {
ce558b89
AM
5133 elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
5134 elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
d7128ce4
AM
5135 }
5136
25dbc73a 5137 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5138}
5139
3a71aa26
AM
5140/* Return TRUE iff REL is a branch reloc with a global symbol matching
5141 HASH. */
5142
5143static bfd_boolean
5144branch_reloc_hash_match (const bfd *ibfd,
5145 const Elf_Internal_Rela *rel,
5146 const struct elf_link_hash_entry *hash)
5147{
5148 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5149 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5150 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5151
e054468f 5152 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5153 {
5154 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5155 struct elf_link_hash_entry *h;
5156
5157 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5158 while (h->root.type == bfd_link_hash_indirect
5159 || h->root.type == bfd_link_hash_warning)
5160 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5161 if (h == hash)
5162 return TRUE;
5163 }
5164 return FALSE;
5165}
5166
25dbc73a
AM
5167/* Run through all the TLS relocs looking for optimization
5168 opportunities. */
252b5132 5169
25dbc73a
AM
5170bfd_boolean
5171ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5172 struct bfd_link_info *info)
252b5132 5173{
7fce784e 5174 bfd *ibfd;
25dbc73a
AM
5175 asection *sec;
5176 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5177 int pass;
252b5132 5178
3cbc1e5e 5179 if (!bfd_link_executable (info))
25dbc73a 5180 return TRUE;
252b5132 5181
7619e7c7 5182 htab = ppc_elf_hash_table (info);
663a1470
AM
5183 if (htab == NULL)
5184 return FALSE;
5185
b7fcf6f6
AM
5186 /* Make two passes through the relocs. First time check that tls
5187 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5188 followed by such a call. If they are not, don't do any tls
5189 optimization. On the second pass twiddle tls_mask flags to
5190 notify relocate_section that optimization can be done, and
5191 adjust got and plt refcounts. */
b7fcf6f6 5192 for (pass = 0; pass < 2; ++pass)
c72f2fb2 5193 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
b7fcf6f6
AM
5194 {
5195 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5196 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5197 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5198
b7fcf6f6
AM
5199 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5200 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5201 {
5202 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5203 int expecting_tls_get_addr = 0;
252b5132 5204
b7fcf6f6
AM
5205 /* Read the relocations. */
5206 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5207 info->keep_memory);
5208 if (relstart == NULL)
5209 return FALSE;
7619e7c7 5210
b7fcf6f6
AM
5211 relend = relstart + sec->reloc_count;
5212 for (rel = relstart; rel < relend; rel++)
5213 {
5214 enum elf_ppc_reloc_type r_type;
5215 unsigned long r_symndx;
5216 struct elf_link_hash_entry *h = NULL;
5217 char *tls_mask;
5218 char tls_set, tls_clear;
5219 bfd_boolean is_local;
b7fcf6f6
AM
5220 bfd_signed_vma *got_count;
5221
5222 r_symndx = ELF32_R_SYM (rel->r_info);
5223 if (r_symndx >= symtab_hdr->sh_info)
5224 {
5225 struct elf_link_hash_entry **sym_hashes;
7fce784e 5226
b7fcf6f6
AM
5227 sym_hashes = elf_sym_hashes (ibfd);
5228 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5229 while (h->root.type == bfd_link_hash_indirect
5230 || h->root.type == bfd_link_hash_warning)
5231 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5232 }
7619e7c7 5233
b7fcf6f6
AM
5234 is_local = FALSE;
5235 if (h == NULL
5236 || !h->def_dynamic)
5237 is_local = TRUE;
7619e7c7 5238
b7fcf6f6 5239 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5240 /* If this section has old-style __tls_get_addr calls
5241 without marker relocs, then check that each
5242 __tls_get_addr call reloc is preceded by a reloc
5243 that conceivably belongs to the __tls_get_addr arg
5244 setup insn. If we don't find matching arg setup
5245 relocs, don't do any tls optimization. */
5246 if (pass == 0
5247 && sec->has_tls_get_addr_call
5248 && h != NULL
5249 && h == htab->tls_get_addr
5250 && !expecting_tls_get_addr
5251 && is_branch_reloc (r_type))
5252 {
25f53a85 5253 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5254 "TLS optimization disabled\n",
5255 ibfd, sec, rel->r_offset);
5256 if (elf_section_data (sec)->relocs != relstart)
5257 free (relstart);
5258 return TRUE;
5259 }
5260
5261 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5262 switch (r_type)
5263 {
5264 case R_PPC_GOT_TLSLD16:
5265 case R_PPC_GOT_TLSLD16_LO:
5266 expecting_tls_get_addr = 1;
1a0670f3 5267 /* Fall through. */
b7fcf6f6
AM
5268
5269 case R_PPC_GOT_TLSLD16_HI:
5270 case R_PPC_GOT_TLSLD16_HA:
5271 /* These relocs should never be against a symbol
5272 defined in a shared lib. Leave them alone if
5273 that turns out to be the case. */
5274 if (!is_local)
5275 continue;
5276
5277 /* LD -> LE */
5278 tls_set = 0;
5279 tls_clear = TLS_LD;
5280 break;
5281
5282 case R_PPC_GOT_TLSGD16:
5283 case R_PPC_GOT_TLSGD16_LO:
5284 expecting_tls_get_addr = 1;
1a0670f3 5285 /* Fall through. */
b7fcf6f6
AM
5286
5287 case R_PPC_GOT_TLSGD16_HI:
5288 case R_PPC_GOT_TLSGD16_HA:
5289 if (is_local)
5290 /* GD -> LE */
5291 tls_set = 0;
5292 else
5293 /* GD -> IE */
5294 tls_set = TLS_TLS | TLS_TPRELGD;
5295 tls_clear = TLS_GD;
5296 break;
5297
5298 case R_PPC_GOT_TPREL16:
5299 case R_PPC_GOT_TPREL16_LO:
5300 case R_PPC_GOT_TPREL16_HI:
5301 case R_PPC_GOT_TPREL16_HA:
5302 if (is_local)
5303 {
5304 /* IE -> LE */
5305 tls_set = 0;
5306 tls_clear = TLS_TPREL;
5307 break;
5308 }
5309 else
5310 continue;
5311
32af9f6e
AM
5312 case R_PPC_TLSGD:
5313 case R_PPC_TLSLD:
5314 expecting_tls_get_addr = 2;
5315 tls_set = 0;
5316 tls_clear = 0;
5317 break;
5318
b7fcf6f6 5319 default:
25dbc73a 5320 continue;
b7fcf6f6 5321 }
25dbc73a 5322
b7fcf6f6
AM
5323 if (pass == 0)
5324 {
727fc41e 5325 if (!expecting_tls_get_addr
32af9f6e
AM
5326 || (expecting_tls_get_addr == 1
5327 && !sec->has_tls_get_addr_call))
b7fcf6f6 5328 continue;
25dbc73a 5329
3a71aa26
AM
5330 if (rel + 1 < relend
5331 && branch_reloc_hash_match (ibfd, rel + 1,
5332 htab->tls_get_addr))
5333 continue;
25dbc73a 5334
b7fcf6f6
AM
5335 /* Uh oh, we didn't find the expected call. We
5336 could just mark this symbol to exclude it
5337 from tls optimization but it's safer to skip
663a1470 5338 the entire optimization. */
25f53a85 5339 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5340 "TLS optimization disabled\n"),
5341 ibfd, sec, rel->r_offset);
5342 if (elf_section_data (sec)->relocs != relstart)
5343 free (relstart);
5344 return TRUE;
b7fcf6f6 5345 }
25dbc73a 5346
32af9f6e
AM
5347 if (expecting_tls_get_addr)
5348 {
5349 struct plt_entry *ent;
5350 bfd_vma addend = 0;
5351
0e1862bb 5352 if (bfd_link_pic (info)
32af9f6e
AM
5353 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5354 addend = rel[1].r_addend;
5355 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5356 got2, addend);
5357 if (ent != NULL && ent->plt.refcount > 0)
5358 ent->plt.refcount -= 1;
5359
5360 if (expecting_tls_get_addr == 2)
5361 continue;
5362 }
5363
b7fcf6f6
AM
5364 if (h != NULL)
5365 {
5366 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5367 got_count = &h->got.refcount;
5368 }
5369 else
5370 {
b7fcf6f6 5371 bfd_signed_vma *lgot_refs;
e054468f 5372 struct plt_entry **local_plt;
b7fcf6f6 5373 char *lgot_masks;
25dbc73a 5374
b7fcf6f6
AM
5375 if (locsyms == NULL)
5376 {
5377 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5378 if (locsyms == NULL)
5379 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5380 symtab_hdr->sh_info,
5381 0, NULL, NULL, NULL);
5382 if (locsyms == NULL)
5383 {
5384 if (elf_section_data (sec)->relocs != relstart)
5385 free (relstart);
5386 return FALSE;
5387 }
5388 }
b7fcf6f6
AM
5389 lgot_refs = elf_local_got_refcounts (ibfd);
5390 if (lgot_refs == NULL)
5391 abort ();
e054468f
AM
5392 local_plt = (struct plt_entry **)
5393 (lgot_refs + symtab_hdr->sh_info);
5394 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5395 tls_mask = &lgot_masks[r_symndx];
5396 got_count = &lgot_refs[r_symndx];
5397 }
25dbc73a 5398
b7fcf6f6
AM
5399 if (tls_set == 0)
5400 {
5401 /* We managed to get rid of a got entry. */
5402 if (*got_count > 0)
5403 *got_count -= 1;
5404 }
25dbc73a 5405
b7fcf6f6
AM
5406 *tls_mask |= tls_set;
5407 *tls_mask &= ~tls_clear;
5408 }
25dbc73a 5409
b7fcf6f6
AM
5410 if (elf_section_data (sec)->relocs != relstart)
5411 free (relstart);
5412 }
5413
5414 if (locsyms != NULL
5415 && (symtab_hdr->contents != (unsigned char *) locsyms))
5416 {
5417 if (!info->keep_memory)
5418 free (locsyms);
5419 else
5420 symtab_hdr->contents = (unsigned char *) locsyms;
5421 }
5422 }
9a23f96e 5423 htab->do_tls_opt = 1;
25dbc73a
AM
5424 return TRUE;
5425}
5426\f
625af618
AM
5427/* Return true if we have dynamic relocs that apply to read-only sections. */
5428
5429static bfd_boolean
0caf6c82
L
5430readonly_dynrelocs (struct elf_link_hash_entry *h,
5431 struct bfd_link_info *info)
625af618 5432{
6061a67d 5433 struct elf_dyn_relocs *p;
625af618
AM
5434
5435 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5436 {
5437 asection *s = p->sec->output_section;
5438
5439 if (s != NULL
5440 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5441 == (SEC_READONLY | SEC_ALLOC)))
0caf6c82
L
5442 {
5443 if (info)
5444 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
5445 p->sec->owner, p->sec);
5446
5447 return TRUE;
5448 }
625af618
AM
5449 }
5450 return FALSE;
5451}
5452
25dbc73a
AM
5453/* Adjust a symbol defined by a dynamic object and referenced by a
5454 regular object. The current definition is in some section of the
5455 dynamic object, but we're not including those sections. We have to
5456 change the definition to something the rest of the link can
5457 understand. */
7fce784e 5458
25dbc73a
AM
5459static bfd_boolean
5460ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5461 struct elf_link_hash_entry *h)
5462{
5463 struct ppc_elf_link_hash_table *htab;
5464 asection *s;
7fce784e 5465
25dbc73a
AM
5466#ifdef DEBUG
5467 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5468 h->root.root.string);
5469#endif
252b5132 5470
25dbc73a
AM
5471 /* Make sure we know what is going on here. */
5472 htab = ppc_elf_hash_table (info);
5473 BFD_ASSERT (htab->elf.dynobj != NULL
5474 && (h->needs_plt
91e21fb7 5475 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5476 || h->u.weakdef != NULL
5477 || (h->def_dynamic
5478 && h->ref_regular
5479 && !h->def_regular)));
252b5132 5480
25dbc73a
AM
5481 /* Deal with function syms. */
5482 if (h->type == STT_FUNC
e054468f 5483 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5484 || h->needs_plt)
5485 {
5486 /* Clear procedure linkage table information for any symbol that
5487 won't need a .plt entry. */
a6aa5195
AM
5488 struct plt_entry *ent;
5489 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5490 if (ent->plt.refcount > 0)
5491 break;
5492 if (ent == NULL
e054468f
AM
5493 || (h->type != STT_GNU_IFUNC
5494 && (SYMBOL_CALLS_LOCAL (info, h)
21d68fcd 5495 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))))
252b5132 5496 {
25dbc73a 5497 /* A PLT entry is not required/allowed when:
252b5132 5498
25dbc73a
AM
5499 1. We are not using ld.so; because then the PLT entry
5500 can't be set up, so we can't use one. In this case,
5501 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5502
25dbc73a
AM
5503 2. GC has rendered the entry unused.
5504
5505 3. We know for certain that a call to this symbol
5506 will go to this object, or will remain undefined. */
a6aa5195 5507 h->plt.plist = NULL;
25dbc73a 5508 h->needs_plt = 0;
d1eca1e4 5509 h->pointer_equality_needed = 0;
25dbc73a 5510 }
625af618
AM
5511 else
5512 {
d1eca1e4
AM
5513 /* Taking a function's address in a read/write section
5514 doesn't require us to define the function symbol in the
1009ef28 5515 executable on a plt call stub. A dynamic reloc can
f0158f44
AM
5516 be used instead, giving better runtime performance.
5517 (Calls via that function pointer don't need to bounce
5518 through the plt call stub.) Similarly, use a dynamic
5519 reloc for a weak reference when possible, allowing the
5520 resolution of the symbol to be set at load time rather
5521 than link time. */
5522 if ((h->pointer_equality_needed
5523 || (!h->ref_regular_nonweak && h->non_got_ref))
1009ef28
AM
5524 && !htab->is_vxworks
5525 && !ppc_elf_hash_entry (h)->has_sda_refs
0caf6c82 5526 && !readonly_dynrelocs (h, NULL))
d1eca1e4
AM
5527 {
5528 h->pointer_equality_needed = 0;
f0158f44
AM
5529 /* After adjust_dynamic_symbol, non_got_ref set in the
5530 non-pic case means that dyn_relocs for this symbol
5531 should be discarded. */
d1eca1e4
AM
5532 h->non_got_ref = 0;
5533 }
625af618 5534 }
d3e454b9 5535 h->protected_def = 0;
25dbc73a 5536 return TRUE;
252b5132 5537 }
25dbc73a 5538 else
a6aa5195 5539 h->plt.plist = NULL;
252b5132 5540
25dbc73a
AM
5541 /* If this is a weak symbol, and there is a real definition, the
5542 processor independent code will have arranged for us to see the
5543 real definition first, and we can just use the same value. */
5544 if (h->u.weakdef != NULL)
252b5132 5545 {
25dbc73a
AM
5546 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5547 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5548 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5549 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5550 if (ELIMINATE_COPY_RELOCS)
5551 h->non_got_ref = h->u.weakdef->non_got_ref;
5552 return TRUE;
5553 }
dc810e39 5554
25dbc73a
AM
5555 /* This is a reference to a symbol defined by a dynamic object which
5556 is not a function. */
252b5132 5557
25dbc73a
AM
5558 /* If we are creating a shared library, we must presume that the
5559 only references to the symbol are via the global offset table.
5560 For such cases we need not do anything here; the relocations will
5561 be handled correctly by relocate_section. */
0e1862bb 5562 if (bfd_link_pic (info))
d3e454b9
AM
5563 {
5564 h->protected_def = 0;
5565 return TRUE;
5566 }
252b5132 5567
25dbc73a
AM
5568 /* If there are no references to this symbol that do not use the
5569 GOT, we don't need to generate a copy reloc. */
5570 if (!h->non_got_ref)
d3e454b9
AM
5571 {
5572 h->protected_def = 0;
5573 return TRUE;
5574 }
5575
5576 /* Protected variables do not work with .dynbss. The copy in
5577 .dynbss won't be used by the shared library with the protected
5578 definition for the variable. Editing to PIC, or text relocations
5579 are preferable to an incorrect program. */
5580 if (h->protected_def)
5581 {
5582 if (ELIMINATE_COPY_RELOCS
5583 && ppc_elf_hash_entry (h)->has_addr16_ha
5584 && ppc_elf_hash_entry (h)->has_addr16_lo
5585 && htab->params->pic_fixup == 0
5586 && info->disable_target_specific_optimizations <= 1)
5587 htab->params->pic_fixup = 1;
5588 h->non_got_ref = 0;
5589 return TRUE;
5590 }
25dbc73a 5591
a127494f
AM
5592 /* If -z nocopyreloc was given, we won't generate them either. */
5593 if (info->nocopyreloc)
5594 {
5595 h->non_got_ref = 0;
5596 return TRUE;
5597 }
5598
cfd2c773
NS
5599 /* If we didn't find any dynamic relocs in read-only sections, then
5600 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5601 We can't do this if there are any small data relocations. This
5602 doesn't work on VxWorks, where we can not have dynamic
5603 relocations (other than copy and jump slot relocations) in an
5604 executable. */
4dc4a9a5 5605 if (ELIMINATE_COPY_RELOCS
cfd2c773 5606 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5607 && !htab->is_vxworks
5608 && !h->def_regular
0caf6c82 5609 && !readonly_dynrelocs (h, NULL))
25dbc73a 5610 {
625af618
AM
5611 h->non_got_ref = 0;
5612 return TRUE;
252b5132
RH
5613 }
5614
25dbc73a
AM
5615 /* We must allocate the symbol in our .dynbss section, which will
5616 become part of the .bss section of the executable. There will be
5617 an entry for this symbol in the .dynsym section. The dynamic
5618 object will contain position independent code, so all references
5619 from the dynamic object to this symbol will go through the global
5620 offset table. The dynamic linker will use the .dynsym entry to
5621 determine the address it must put in the global offset table, so
5622 both the dynamic object and the regular object will refer to the
5623 same memory location for the variable.
5624
4dc4a9a5
DJ
5625 Of course, if the symbol is referenced using SDAREL relocs, we
5626 must instead allocate it in .sbss. */
25dbc73a 5627
4dc4a9a5 5628 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5629 s = htab->dynsbss;
5474d94f
AM
5630 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5631 s = htab->elf.sdynrelro;
25dbc73a 5632 else
9d19e4fd 5633 s = htab->elf.sdynbss;
25dbc73a
AM
5634 BFD_ASSERT (s != NULL);
5635
5636 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5637 copy the initial value out of the dynamic object and into the
5638 runtime process image. We need to remember the offset into the
5639 .rela.bss section we are going to use. */
1d7e9d18 5640 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5641 {
5642 asection *srel;
5643
4dc4a9a5 5644 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 5645 srel = htab->relsbss;
5474d94f
AM
5646 else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
5647 srel = htab->elf.sreldynrelro;
25dbc73a 5648 else
9d19e4fd 5649 srel = htab->elf.srelbss;
25dbc73a
AM
5650 BFD_ASSERT (srel != NULL);
5651 srel->size += sizeof (Elf32_External_Rela);
5652 h->needs_copy = 1;
5653 }
7619e7c7 5654
6cabe1ea 5655 return _bfd_elf_adjust_dynamic_copy (info, h, s);
25dbc73a
AM
5656}
5657\f
ac39eb42
AM
5658/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5659 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5660 specifying the addend on the plt relocation. For -fpic code, the sym
5661 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5662 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5663
5664static bfd_boolean
5665add_stub_sym (struct plt_entry *ent,
5666 struct elf_link_hash_entry *h,
ac39eb42 5667 struct bfd_link_info *info)
0ba07910
AM
5668{
5669 struct elf_link_hash_entry *sh;
5670 size_t len1, len2, len3;
5671 char *name;
ac39eb42
AM
5672 const char *stub;
5673 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5674
0e1862bb 5675 if (bfd_link_pic (info))
ac39eb42
AM
5676 stub = ".plt_pic32.";
5677 else
5678 stub = ".plt_call32.";
0ba07910
AM
5679
5680 len1 = strlen (h->root.root.string);
ac39eb42 5681 len2 = strlen (stub);
0ba07910
AM
5682 len3 = 0;
5683 if (ent->sec)
5684 len3 = strlen (ent->sec->name);
ac39eb42 5685 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5686 if (name == NULL)
5687 return FALSE;
5688 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5689 if (ent->sec)
5690 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5691 memcpy (name + 8 + len3, stub, len2);
5692 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5693 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5694 if (sh == NULL)
5695 return FALSE;
5696 if (sh->root.type == bfd_link_hash_new)
5697 {
5698 sh->root.type = bfd_link_hash_defined;
5699 sh->root.u.def.section = htab->glink;
5700 sh->root.u.def.value = ent->glink_offset;
5701 sh->ref_regular = 1;
5702 sh->def_regular = 1;
5703 sh->ref_regular_nonweak = 1;
5704 sh->forced_local = 1;
5705 sh->non_elf = 0;
2ec55de3 5706 sh->root.linker_def = 1;
0ba07910
AM
5707 }
5708 return TRUE;
5709}
5710
3b36f7e6
AM
5711/* Allocate NEED contiguous space in .got, and return the offset.
5712 Handles allocation of the got header when crossing 32k. */
5713
5714static bfd_vma
5715allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5716{
5717 bfd_vma where;
4a3dc543 5718 unsigned int max_before_header;
3b36f7e6 5719
4a3dc543 5720 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5721 {
ce558b89
AM
5722 where = htab->elf.sgot->size;
5723 htab->elf.sgot->size += need;
9d8504b1 5724 }
3b36f7e6
AM
5725 else
5726 {
4a3dc543
RS
5727 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5728 if (need <= htab->got_gap)
3b36f7e6 5729 {
4a3dc543
RS
5730 where = max_before_header - htab->got_gap;
5731 htab->got_gap -= need;
5732 }
5733 else
5734 {
ce558b89
AM
5735 if (htab->elf.sgot->size + need > max_before_header
5736 && htab->elf.sgot->size <= max_before_header)
4a3dc543 5737 {
ce558b89
AM
5738 htab->got_gap = max_before_header - htab->elf.sgot->size;
5739 htab->elf.sgot->size = max_before_header + htab->got_header_size;
4a3dc543 5740 }
ce558b89
AM
5741 where = htab->elf.sgot->size;
5742 htab->elf.sgot->size += need;
3b36f7e6 5743 }
3b36f7e6
AM
5744 }
5745 return where;
5746}
5747
46434633 5748/* If H is undefined, make it dynamic if that makes sense. */
f0158f44
AM
5749
5750static bfd_boolean
46434633
AM
5751ensure_undef_dynamic (struct bfd_link_info *info,
5752 struct elf_link_hash_entry *h)
f0158f44
AM
5753{
5754 struct elf_link_hash_table *htab = elf_hash_table (info);
5755
5756 if (htab->dynamic_sections_created
46434633
AM
5757 && ((info->dynamic_undefined_weak != 0
5758 && h->root.type == bfd_link_hash_undefweak)
5759 || h->root.type == bfd_link_hash_undefined)
f0158f44
AM
5760 && h->dynindx == -1
5761 && !h->forced_local
5762 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
5763 return bfd_elf_link_record_dynamic_symbol (info, h);
5764 return TRUE;
5765}
5766
25dbc73a 5767/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5768
b34976b6 5769static bfd_boolean
25dbc73a 5770allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5771{
25dbc73a
AM
5772 struct bfd_link_info *info = inf;
5773 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5774 struct ppc_elf_link_hash_table *htab;
6061a67d 5775 struct elf_dyn_relocs *p;
f0158f44 5776 bfd_boolean dyn;
252b5132 5777
25dbc73a 5778 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5779 return TRUE;
252b5132 5780
7619e7c7 5781 htab = ppc_elf_hash_table (info);
25dbc73a 5782 eh = (struct ppc_elf_link_hash_entry *) h;
d3e454b9
AM
5783 if (eh->elf.got.refcount > 0
5784 || (ELIMINATE_COPY_RELOCS
5785 && !eh->elf.def_regular
5786 && eh->elf.protected_def
5787 && eh->has_addr16_ha
5788 && eh->has_addr16_lo
5789 && htab->params->pic_fixup > 0))
25dbc73a 5790 {
d6e14abc
AM
5791 unsigned int need;
5792
46434633
AM
5793 /* Make sure this symbol is output as a dynamic symbol. */
5794 if (!ensure_undef_dynamic (info, &eh->elf))
f0158f44 5795 return FALSE;
252b5132 5796
d6e14abc
AM
5797 need = 0;
5798 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5799 {
d6e14abc 5800 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5801 {
d6e14abc
AM
5802 if (!eh->elf.def_dynamic)
5803 /* We'll just use htab->tlsld_got.offset. This should
5804 always be the case. It's a little odd if we have
5805 a local dynamic reloc against a non-local symbol. */
5806 htab->tlsld_got.refcount += 1;
5807 else
3b36f7e6 5808 need += 8;
252b5132 5809 }
d6e14abc
AM
5810 if ((eh->tls_mask & TLS_GD) != 0)
5811 need += 8;
5812 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5813 need += 4;
5814 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5815 need += 4;
d6e14abc
AM
5816 }
5817 else
5818 need += 4;
5819 if (need == 0)
5820 eh->elf.got.offset = (bfd_vma) -1;
5821 else
5822 {
3b36f7e6 5823 eh->elf.got.offset = allocate_got (htab, need);
0e1862bb 5824 if ((bfd_link_pic (info)
f0158f44
AM
5825 || (htab->elf.dynamic_sections_created
5826 && eh->elf.dynindx != -1
5827 && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
21d68fcd 5828 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
252b5132 5829 {
ce558b89 5830 asection *rsec = htab->elf.srelgot;
0bed072f
AM
5831
5832 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 5833 rsec = htab->elf.irelplt;
3b36f7e6
AM
5834 /* All the entries we allocated need relocs.
5835 Except LD only needs one. */
d6e14abc
AM
5836 if ((eh->tls_mask & TLS_LD) != 0
5837 && eh->elf.def_dynamic)
3b36f7e6 5838 need -= 4;
25f23106 5839 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 5840 }
25dbc73a
AM
5841 }
5842 }
5843 else
5844 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5845
954b63d4
AM
5846 /* If no dynamic sections we can't have dynamic relocs, except for
5847 IFUNCs which are handled even in static executables. */
f0158f44
AM
5848 if (!htab->elf.dynamic_sections_created
5849 && h->type != STT_GNU_IFUNC)
5850 eh->dyn_relocs = NULL;
5851
5852 if (eh->dyn_relocs == NULL)
5853 ;
252b5132 5854
25dbc73a
AM
5855 /* In the shared -Bsymbolic case, discard space allocated for
5856 dynamic pc-relative relocs against symbols which turn out to be
5857 defined in regular objects. For the normal shared case, discard
5858 space for relocs that have become local due to symbol visibility
5859 changes. */
f0158f44 5860 else if (bfd_link_pic (info))
25dbc73a 5861 {
954b63d4
AM
5862 /* Discard relocs on undefined symbols that must be local. */
5863 if (h->root.type == bfd_link_hash_undefined
5864 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5865 eh->dyn_relocs = NULL;
5866
5867 /* Also discard relocs on undefined weak syms with non-default
5868 visibility, or when dynamic_undefined_weak says so. */
21d68fcd 5869 else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
954b63d4
AM
5870 eh->dyn_relocs = NULL;
5871
25dbc73a 5872 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5873 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
5874 generated via assembly. We want calls to protected symbols to
5875 resolve directly to the function rather than going via the plt.
5876 If people want function pointer comparisons to work as expected
5877 then they should avoid writing weird assembly. */
954b63d4 5878 else if (SYMBOL_CALLS_LOCAL (info, h))
25dbc73a 5879 {
6061a67d 5880 struct elf_dyn_relocs **pp;
25dbc73a
AM
5881
5882 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5883 {
25dbc73a
AM
5884 p->count -= p->pc_count;
5885 p->pc_count = 0;
5886 if (p->count == 0)
5887 *pp = p->next;
5888 else
5889 pp = &p->next;
252b5132 5890 }
25dbc73a 5891 }
252b5132 5892
3348747a
NS
5893 if (htab->is_vxworks)
5894 {
6061a67d 5895 struct elf_dyn_relocs **pp;
3348747a
NS
5896
5897 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5898 {
5899 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5900 *pp = p->next;
5901 else
5902 pp = &p->next;
5903 }
5904 }
5905
954b63d4 5906 if (eh->dyn_relocs != NULL)
25dbc73a 5907 {
46434633
AM
5908 /* Make sure this symbol is output as a dynamic symbol. */
5909 if (!ensure_undef_dynamic (info, h))
f0158f44 5910 return FALSE;
25dbc73a
AM
5911 }
5912 }
5913 else if (ELIMINATE_COPY_RELOCS)
5914 {
f0158f44 5915 /* For the non-pic case, discard space for relocs against
25dbc73a
AM
5916 symbols which turn out to need copy relocs or are not
5917 dynamic. */
25dbc73a 5918 if (!h->non_got_ref
d3e454b9
AM
5919 && !h->def_regular
5920 && !(h->protected_def
5921 && eh->has_addr16_ha
5922 && eh->has_addr16_lo
5923 && htab->params->pic_fixup > 0))
25dbc73a 5924 {
46434633
AM
5925 /* Make sure this symbol is output as a dynamic symbol. */
5926 if (!ensure_undef_dynamic (info, h))
f0158f44 5927 return FALSE;
7619e7c7 5928
f0158f44
AM
5929 if (h->dynindx == -1)
5930 eh->dyn_relocs = NULL;
25dbc73a 5931 }
f0158f44
AM
5932 else
5933 eh->dyn_relocs = NULL;
25dbc73a 5934 }
252b5132 5935
f0158f44 5936 /* Allocate space. */
25dbc73a
AM
5937 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5938 {
5939 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 5940 if (eh->elf.type == STT_GNU_IFUNC)
ce558b89 5941 sreloc = htab->elf.irelplt;
25dbc73a
AM
5942 sreloc->size += p->count * sizeof (Elf32_External_Rela);
5943 }
252b5132 5944
f0158f44
AM
5945 /* Handle PLT relocs. Done last, after dynindx has settled. */
5946 dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
5947 if (dyn || h->type == STT_GNU_IFUNC)
5948 {
5949 struct plt_entry *ent;
5950 bfd_boolean doneone = FALSE;
5951 bfd_vma plt_offset = 0, glink_offset = 0;
5952
5953 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5954 if (ent->plt.refcount > 0)
5955 {
5956 asection *s = htab->elf.splt;
5957
5958 if (!dyn)
5959 s = htab->elf.iplt;
5960
5961 if (htab->plt_type == PLT_NEW || !dyn)
5962 {
5963 if (!doneone)
5964 {
5965 plt_offset = s->size;
5966 s->size += 4;
5967 }
5968 ent->plt.offset = plt_offset;
5969
5970 s = htab->glink;
5971 if (!doneone || bfd_link_pic (info))
5972 {
5973 glink_offset = s->size;
5974 s->size += GLINK_ENTRY_SIZE;
5975 if (h == htab->tls_get_addr
5976 && !htab->params->no_tls_get_addr_opt)
5977 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
5978 }
5979 if (!doneone
5980 && !bfd_link_pic (info)
5981 && h->def_dynamic
5982 && !h->def_regular)
5983 {
5984 h->root.u.def.section = s;
5985 h->root.u.def.value = glink_offset;
5986 }
5987 ent->glink_offset = glink_offset;
5988
5989 if (htab->params->emit_stub_syms
5990 && !add_stub_sym (ent, h, info))
5991 return FALSE;
5992 }
5993 else
5994 {
5995 if (!doneone)
5996 {
5997 /* If this is the first .plt entry, make room
5998 for the special first entry. */
5999 if (s->size == 0)
6000 s->size += htab->plt_initial_entry_size;
6001
6002 /* The PowerPC PLT is actually composed of two
6003 parts, the first part is 2 words (for a load
6004 and a jump), and then there is a remaining
6005 word available at the end. */
6006 plt_offset = (htab->plt_initial_entry_size
6007 + (htab->plt_slot_size
6008 * ((s->size
6009 - htab->plt_initial_entry_size)
6010 / htab->plt_entry_size)));
6011
6012 /* If this symbol is not defined in a regular
6013 file, and we are not generating a shared
6014 library, then set the symbol to this location
6015 in the .plt. This is to avoid text
6016 relocations, and is required to make
6017 function pointers compare as equal between
6018 the normal executable and the shared library. */
6019 if (! bfd_link_pic (info)
6020 && h->def_dynamic
6021 && !h->def_regular)
6022 {
6023 h->root.u.def.section = s;
6024 h->root.u.def.value = plt_offset;
6025 }
6026
6027 /* Make room for this entry. */
6028 s->size += htab->plt_entry_size;
6029 /* After the 8192nd entry, room for two entries
6030 is allocated. */
6031 if (htab->plt_type == PLT_OLD
6032 && (s->size - htab->plt_initial_entry_size)
6033 / htab->plt_entry_size
6034 > PLT_NUM_SINGLE_ENTRIES)
6035 s->size += htab->plt_entry_size;
6036 }
6037 ent->plt.offset = plt_offset;
6038 }
6039
6040 /* We also need to make an entry in the .rela.plt section. */
6041 if (!doneone)
6042 {
6043 if (!dyn)
6044 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
6045 else
6046 {
6047 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
6048
6049 if (htab->plt_type == PLT_VXWORKS)
6050 {
6051 /* Allocate space for the unloaded relocations. */
6052 if (!bfd_link_pic (info)
6053 && htab->elf.dynamic_sections_created)
6054 {
6055 if (ent->plt.offset
6056 == (bfd_vma) htab->plt_initial_entry_size)
6057 {
6058 htab->srelplt2->size
6059 += (sizeof (Elf32_External_Rela)
6060 * VXWORKS_PLTRESOLVE_RELOCS);
6061 }
6062
6063 htab->srelplt2->size
6064 += (sizeof (Elf32_External_Rela)
6065 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
6066 }
6067
6068 /* Every PLT entry has an associated GOT entry in
6069 .got.plt. */
6070 htab->elf.sgotplt->size += 4;
6071 }
6072 }
6073 doneone = TRUE;
6074 }
6075 }
6076 else
6077 ent->plt.offset = (bfd_vma) -1;
6078
6079 if (!doneone)
6080 {
6081 h->plt.plist = NULL;
6082 h->needs_plt = 0;
6083 }
6084 }
6085 else
6086 {
6087 h->plt.plist = NULL;
6088 h->needs_plt = 0;
6089 }
6090
25dbc73a
AM
6091 return TRUE;
6092}
7619e7c7 6093
625af618
AM
6094/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6095 read-only sections. */
7619e7c7 6096
25dbc73a 6097static bfd_boolean
0caf6c82 6098maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
25dbc73a 6099{
0caf6c82
L
6100 struct bfd_link_info *info;
6101
25dbc73a
AM
6102 if (h->root.type == bfd_link_hash_indirect)
6103 return TRUE;
252b5132 6104
0caf6c82
L
6105 info = (struct bfd_link_info *) info_p;
6106 if (readonly_dynrelocs (h, info))
25dbc73a 6107 {
0caf6c82 6108 info->flags |= DF_TEXTREL;
ee05f2fe 6109
625af618
AM
6110 /* Not an error, just cut short the traversal. */
6111 return FALSE;
25dbc73a
AM
6112 }
6113 return TRUE;
6114}
6115
6177242a
AM
6116static const unsigned char glink_eh_frame_cie[] =
6117{
6118 0, 0, 0, 16, /* length. */
6119 0, 0, 0, 0, /* id. */
6120 1, /* CIE version. */
6121 'z', 'R', 0, /* Augmentation string. */
6122 4, /* Code alignment. */
6123 0x7c, /* Data alignment. */
6124 65, /* RA reg. */
6125 1, /* Augmentation size. */
6126 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6127 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6128};
6129
25dbc73a
AM
6130/* Set the sizes of the dynamic sections. */
6131
6132static bfd_boolean
93d1b056 6133ppc_elf_size_dynamic_sections (bfd *output_bfd,
25dbc73a
AM
6134 struct bfd_link_info *info)
6135{
6136 struct ppc_elf_link_hash_table *htab;
6137 asection *s;
6138 bfd_boolean relocs;
6139 bfd *ibfd;
7fce784e 6140
252b5132 6141#ifdef DEBUG
25dbc73a 6142 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6143#endif
252b5132 6144
25dbc73a
AM
6145 htab = ppc_elf_hash_table (info);
6146 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6147
25dbc73a
AM
6148 if (elf_hash_table (info)->dynamic_sections_created)
6149 {
6150 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 6151 if (bfd_link_executable (info) && !info->nointerp)
25dbc73a 6152 {
3d4d4302 6153 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6154 BFD_ASSERT (s != NULL);
6155 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6156 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6157 }
6158 }
252b5132 6159
4a3dc543 6160 if (htab->plt_type == PLT_OLD)
d7128ce4 6161 htab->got_header_size = 16;
4a3dc543 6162 else if (htab->plt_type == PLT_NEW)
d7128ce4 6163 htab->got_header_size = 12;
252b5132 6164
25dbc73a
AM
6165 /* Set up .got offsets for local syms, and space for local dynamic
6166 relocs. */
c72f2fb2 6167 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
25dbc73a
AM
6168 {
6169 bfd_signed_vma *local_got;
6170 bfd_signed_vma *end_local_got;
e054468f
AM
6171 struct plt_entry **local_plt;
6172 struct plt_entry **end_local_plt;
25dbc73a
AM
6173 char *lgot_masks;
6174 bfd_size_type locsymcount;
6175 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6176
0c8d6e5c 6177 if (!is_ppc_elf (ibfd))
25dbc73a 6178 continue;
7fce784e 6179
25dbc73a
AM
6180 for (s = ibfd->sections; s != NULL; s = s->next)
6181 {
f95f8542 6182 struct ppc_dyn_relocs *p;
252b5132 6183
f95f8542 6184 for (p = ((struct ppc_dyn_relocs *)
25dbc73a
AM
6185 elf_section_data (s)->local_dynrel);
6186 p != NULL;
6187 p = p->next)
6188 {
6189 if (!bfd_is_abs_section (p->sec)
6190 && bfd_is_abs_section (p->sec->output_section))
6191 {
6192 /* Input section has been discarded, either because
6193 it is a copy of a linkonce section or due to
6194 linker script /DISCARD/, so we'll be discarding
6195 the relocs too. */
7fce784e 6196 }
3348747a
NS
6197 else if (htab->is_vxworks
6198 && strcmp (p->sec->output_section->name,
6199 ".tls_vars") == 0)
6200 {
6201 /* Relocations in vxworks .tls_vars sections are
6202 handled specially by the loader. */
6203 }
25dbc73a 6204 else if (p->count != 0)
7fce784e 6205 {
25f23106 6206 asection *sreloc = elf_section_data (p->sec)->sreloc;
f95f8542 6207 if (p->ifunc)
ce558b89 6208 sreloc = htab->elf.irelplt;
25f23106 6209 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6210 if ((p->sec->output_section->flags
6211 & (SEC_READONLY | SEC_ALLOC))
6212 == (SEC_READONLY | SEC_ALLOC))
0caf6c82
L
6213 {
6214 info->flags |= DF_TEXTREL;
6215 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
6216 p->sec->owner, p->sec);
6217 }
7fce784e 6218 }
252b5132 6219 }
252b5132 6220 }
252b5132 6221
25dbc73a
AM
6222 local_got = elf_local_got_refcounts (ibfd);
6223 if (!local_got)
6224 continue;
252b5132 6225
0ffa91dd 6226 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6227 locsymcount = symtab_hdr->sh_info;
6228 end_local_got = local_got + locsymcount;
e054468f
AM
6229 local_plt = (struct plt_entry **) end_local_got;
6230 end_local_plt = local_plt + locsymcount;
6231 lgot_masks = (char *) end_local_plt;
91d6fa6a 6232
25dbc73a
AM
6233 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6234 if (*local_got > 0)
6235 {
d6e14abc
AM
6236 unsigned int need = 0;
6237 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6238 {
d6e14abc
AM
6239 if ((*lgot_masks & TLS_GD) != 0)
6240 need += 8;
6241 if ((*lgot_masks & TLS_LD) != 0)
6242 htab->tlsld_got.refcount += 1;
6243 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6244 need += 4;
6245 if ((*lgot_masks & TLS_DTPREL) != 0)
6246 need += 4;
25dbc73a 6247 }
d6e14abc
AM
6248 else
6249 need += 4;
6250 if (need == 0)
6251 *local_got = (bfd_vma) -1;
25dbc73a
AM
6252 else
6253 {
3b36f7e6 6254 *local_got = allocate_got (htab, need);
0e1862bb 6255 if (bfd_link_pic (info))
0bed072f 6256 {
ce558b89 6257 asection *srel = htab->elf.srelgot;
0bed072f 6258 if ((*lgot_masks & PLT_IFUNC) != 0)
ce558b89 6259 srel = htab->elf.irelplt;
0bed072f
AM
6260 srel->size += need * (sizeof (Elf32_External_Rela) / 4);
6261 }
25dbc73a
AM
6262 }
6263 }
6264 else
6265 *local_got = (bfd_vma) -1;
e054468f
AM
6266
6267 if (htab->is_vxworks)
6268 continue;
6269
6270 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6271 for (; local_plt < end_local_plt; ++local_plt)
6272 {
6273 struct plt_entry *ent;
6274 bfd_boolean doneone = FALSE;
6275 bfd_vma plt_offset = 0, glink_offset = 0;
6276
6277 for (ent = *local_plt; ent != NULL; ent = ent->next)
6278 if (ent->plt.refcount > 0)
6279 {
ce558b89 6280 s = htab->elf.iplt;
e054468f
AM
6281
6282 if (!doneone)
6283 {
6284 plt_offset = s->size;
6285 s->size += 4;
6286 }
6287 ent->plt.offset = plt_offset;
6288
6289 s = htab->glink;
0e1862bb 6290 if (!doneone || bfd_link_pic (info))
e054468f
AM
6291 {
6292 glink_offset = s->size;
6293 s->size += GLINK_ENTRY_SIZE;
6294 }
6295 ent->glink_offset = glink_offset;
6296
6297 if (!doneone)
6298 {
ce558b89 6299 htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6300 doneone = TRUE;
6301 }
6302 }
6303 else
6304 ent->plt.offset = (bfd_vma) -1;
6305 }
25dbc73a 6306 }
252b5132 6307
b7fcf6f6
AM
6308 /* Allocate space for global sym dynamic relocs. */
6309 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6310
3b36f7e6
AM
6311 if (htab->tlsld_got.refcount > 0)
6312 {
6313 htab->tlsld_got.offset = allocate_got (htab, 8);
0e1862bb 6314 if (bfd_link_pic (info))
ce558b89 6315 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3b36f7e6
AM
6316 }
6317 else
6318 htab->tlsld_got.offset = (bfd_vma) -1;
6319
ce558b89 6320 if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6321 {
6322 unsigned int g_o_t = 32768;
6323
4d962050
AM
6324 /* If we haven't allocated the header, do so now. When we get here,
6325 for old plt/got the got size will be 0 to 32764 (not allocated),
6326 or 32780 to 65536 (header allocated). For new plt/got, the
6327 corresponding ranges are 0 to 32768 and 32780 to 65536. */
ce558b89 6328 if (htab->elf.sgot->size <= 32768)
3b36f7e6 6329 {
ce558b89 6330 g_o_t = htab->elf.sgot->size;
4a3dc543 6331 if (htab->plt_type == PLT_OLD)
4d962050 6332 g_o_t += 4;
ce558b89 6333 htab->elf.sgot->size += htab->got_header_size;
3b36f7e6 6334 }
3b36f7e6
AM
6335
6336 htab->elf.hgot->root.u.def.value = g_o_t;
6337 }
0e1862bb 6338 if (bfd_link_pic (info))
bd6c6e2b
AM
6339 {
6340 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
93d1b056
AM
6341
6342 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6343 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
bd6c6e2b 6344 }
15bfcc77
AM
6345 if (info->emitrelocations)
6346 {
6347 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6348
6349 if (sda != NULL && sda->ref_regular)
6350 sda->root.u.def.section->flags |= SEC_KEEP;
6351 sda = htab->sdata[1].sym;
6352 if (sda != NULL && sda->ref_regular)
6353 sda->root.u.def.section->flags |= SEC_KEEP;
6354 }
3b36f7e6 6355
e054468f
AM
6356 if (htab->glink != NULL
6357 && htab->glink->size != 0
6358 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6359 {
6360 htab->glink_pltresolve = htab->glink->size;
888a7fc3
AM
6361 /* Space for the branch table. ??? We don't need entries for
6362 non-dynamic symbols in this table. This case can arise with
6363 static ifuncs or forced local ifuncs. */
86b9da88
AM
6364 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6365 /* Pad out to align the start of PLTresolve. */
5446cbdf
AM
6366 htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
6367 ? 63 : 15);
d7128ce4 6368 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910 6369
5446cbdf 6370 if (htab->params->emit_stub_syms)
0ba07910
AM
6371 {
6372 struct elf_link_hash_entry *sh;
6373 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6374 TRUE, FALSE, FALSE);
6375 if (sh == NULL)
6376 return FALSE;
6377 if (sh->root.type == bfd_link_hash_new)
6378 {
6379 sh->root.type = bfd_link_hash_defined;
6380 sh->root.u.def.section = htab->glink;
6381 sh->root.u.def.value = htab->glink_pltresolve;
6382 sh->ref_regular = 1;
6383 sh->def_regular = 1;
6384 sh->ref_regular_nonweak = 1;
6385 sh->forced_local = 1;
6386 sh->non_elf = 0;
2ec55de3 6387 sh->root.linker_def = 1;
0ba07910
AM
6388 }
6389 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6390 TRUE, FALSE, FALSE);
6391 if (sh == NULL)
6392 return FALSE;
6393 if (sh->root.type == bfd_link_hash_new)
6394 {
6395 sh->root.type = bfd_link_hash_defined;
6396 sh->root.u.def.section = htab->glink;
6397 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6398 sh->ref_regular = 1;
6399 sh->def_regular = 1;
6400 sh->ref_regular_nonweak = 1;
6401 sh->forced_local = 1;
6402 sh->non_elf = 0;
2ec55de3 6403 sh->root.linker_def = 1;
0ba07910
AM
6404 }
6405 }
d7128ce4
AM
6406 }
6407
6177242a
AM
6408 if (htab->glink != NULL
6409 && htab->glink->size != 0
6410 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6411 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6412 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6413 {
6414 s = htab->glink_eh_frame;
6415 s->size = sizeof (glink_eh_frame_cie) + 20;
0e1862bb 6416 if (bfd_link_pic (info))
6177242a
AM
6417 {
6418 s->size += 4;
6419 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6420 s->size += 4;
6421 }
6422 }
6423
25dbc73a
AM
6424 /* We've now determined the sizes of the various dynamic sections.
6425 Allocate memory for them. */
6426 relocs = FALSE;
6427 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6428 {
9d8504b1
PB
6429 bfd_boolean strip_section = TRUE;
6430
25dbc73a
AM
6431 if ((s->flags & SEC_LINKER_CREATED) == 0)
6432 continue;
252b5132 6433
ce558b89
AM
6434 if (s == htab->elf.splt
6435 || s == htab->elf.sgot)
25dbc73a 6436 {
9d8504b1
PB
6437 /* We'd like to strip these sections if they aren't needed, but if
6438 we've exported dynamic symbols from them we must leave them.
6439 It's too late to tell BFD to get rid of the symbols. */
e054468f 6440 if (htab->elf.hplt != NULL)
9d8504b1 6441 strip_section = FALSE;
25dbc73a
AM
6442 /* Strip this section if we don't need it; see the
6443 comment below. */
6444 }
ce558b89 6445 else if (s == htab->elf.iplt
e054468f 6446 || s == htab->glink
6177242a 6447 || s == htab->glink_eh_frame
ce558b89 6448 || s == htab->elf.sgotplt
e054468f 6449 || s == htab->sbss
9d19e4fd 6450 || s == htab->elf.sdynbss
5474d94f 6451 || s == htab->elf.sdynrelro
15bfcc77 6452 || s == htab->dynsbss)
25dbc73a 6453 {
c9a2f333 6454 /* Strip these too. */
25dbc73a 6455 }
15bfcc77
AM
6456 else if (s == htab->sdata[0].section
6457 || s == htab->sdata[1].section)
6458 {
6459 strip_section = (s->flags & SEC_KEEP) == 0;
6460 }
a0f49396
NC
6461 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6462 ".rela"))
25dbc73a 6463 {
c456f082 6464 if (s->size != 0)
25dbc73a
AM
6465 {
6466 /* Remember whether there are any relocation sections. */
6467 relocs = TRUE;
252b5132 6468
25dbc73a
AM
6469 /* We use the reloc_count field as a counter if we need
6470 to copy relocs into the output file. */
6471 s->reloc_count = 0;
252b5132
RH
6472 }
6473 }
25dbc73a
AM
6474 else
6475 {
6476 /* It's not one of our sections, so don't allocate space. */
6477 continue;
6478 }
252b5132 6479
9d8504b1 6480 if (s->size == 0 && strip_section)
25dbc73a 6481 {
c456f082
AM
6482 /* If we don't need this section, strip it from the
6483 output file. This is mostly to handle .rela.bss and
6484 .rela.plt. We must create both sections in
6485 create_dynamic_sections, because they must be created
6486 before the linker maps input sections to output
6487 sections. The linker does that before
6488 adjust_dynamic_symbol is called, and it is that
6489 function which decides whether anything needs to go
6490 into these sections. */
8423293d 6491 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6492 continue;
6493 }
7fce784e 6494
d7128ce4 6495 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6496 continue;
6497
25dbc73a
AM
6498 /* Allocate memory for the section contents. */
6499 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6500 if (s->contents == NULL)
6501 return FALSE;
6502 }
252b5132 6503
25dbc73a 6504 if (htab->elf.dynamic_sections_created)
7619e7c7 6505 {
25dbc73a
AM
6506 /* Add some entries to the .dynamic section. We fill in the
6507 values later, in ppc_elf_finish_dynamic_sections, but we
6508 must add the entries now so that we get the correct size for
6509 the .dynamic section. The DT_DEBUG entry is filled in by the
6510 dynamic linker and used by the debugger. */
6511#define add_dynamic_entry(TAG, VAL) \
6512 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6513
0e1862bb 6514 if (bfd_link_executable (info))
7619e7c7 6515 {
25dbc73a
AM
6516 if (!add_dynamic_entry (DT_DEBUG, 0))
6517 return FALSE;
7619e7c7
AM
6518 }
6519
ce558b89 6520 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
7619e7c7 6521 {
25dbc73a
AM
6522 if (!add_dynamic_entry (DT_PLTGOT, 0)
6523 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6524 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6525 || !add_dynamic_entry (DT_JMPREL, 0))
6526 return FALSE;
6527 }
7619e7c7 6528
c7e17e05
AM
6529 if (htab->plt_type == PLT_NEW
6530 && htab->glink != NULL
6531 && htab->glink->size != 0)
d7128ce4 6532 {
1fe44d79 6533 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6534 return FALSE;
5446cbdf 6535 if (!htab->params->no_tls_get_addr_opt
a7f2871e
AM
6536 && htab->tls_get_addr != NULL
6537 && htab->tls_get_addr->plt.plist != NULL
e8910a83 6538 && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
a7f2871e 6539 return FALSE;
d7128ce4
AM
6540 }
6541
25dbc73a
AM
6542 if (relocs)
6543 {
6544 if (!add_dynamic_entry (DT_RELA, 0)
6545 || !add_dynamic_entry (DT_RELASZ, 0)
6546 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6547 return FALSE;
6548 }
7619e7c7 6549
25dbc73a
AM
6550 /* If any dynamic relocs apply to a read-only section, then we
6551 need a DT_TEXTREL entry. */
6552 if ((info->flags & DF_TEXTREL) == 0)
625af618 6553 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6554 info);
7619e7c7 6555
25dbc73a
AM
6556 if ((info->flags & DF_TEXTREL) != 0)
6557 {
6558 if (!add_dynamic_entry (DT_TEXTREL, 0))
6559 return FALSE;
7619e7c7 6560 }
7a2b07ff
NS
6561 if (htab->is_vxworks
6562 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6563 return FALSE;
6564 }
25dbc73a
AM
6565#undef add_dynamic_entry
6566
7e01508c
AM
6567 if (htab->glink_eh_frame != NULL
6568 && htab->glink_eh_frame->contents != NULL)
6569 {
6570 unsigned char *p = htab->glink_eh_frame->contents;
6571 bfd_vma val;
6572
6573 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6574 /* CIE length (rewrite in case little-endian). */
6575 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6576 p += sizeof (glink_eh_frame_cie);
6577 /* FDE length. */
6578 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6579 bfd_put_32 (htab->elf.dynobj, val, p);
6580 p += 4;
6581 /* CIE pointer. */
6582 val = p - htab->glink_eh_frame->contents;
6583 bfd_put_32 (htab->elf.dynobj, val, p);
6584 p += 4;
6585 /* Offset to .glink. Set later. */
6586 p += 4;
6587 /* .glink size. */
6588 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6589 p += 4;
6590 /* Augmentation. */
6591 p += 1;
6592
0e1862bb 6593 if (bfd_link_pic (info)
7e01508c
AM
6594 && htab->elf.dynamic_sections_created)
6595 {
6596 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6597 if (adv < 64)
6598 *p++ = DW_CFA_advance_loc + adv;
6599 else if (adv < 256)
6600 {
6601 *p++ = DW_CFA_advance_loc1;
6602 *p++ = adv;
6603 }
6604 else if (adv < 65536)
6605 {
6606 *p++ = DW_CFA_advance_loc2;
6607 bfd_put_16 (htab->elf.dynobj, adv, p);
6608 p += 2;
6609 }
6610 else
6611 {
6612 *p++ = DW_CFA_advance_loc4;
6613 bfd_put_32 (htab->elf.dynobj, adv, p);
6614 p += 4;
6615 }
6616 *p++ = DW_CFA_register;
6617 *p++ = 65;
6618 p++;
6619 *p++ = DW_CFA_advance_loc + 4;
6620 *p++ = DW_CFA_restore_extended;
6621 *p++ = 65;
6622 }
6623 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6624 == htab->glink_eh_frame->size);
6625 }
6626
7619e7c7
AM
6627 return TRUE;
6628}
0eb4a168 6629
93d1b056
AM
6630/* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
6631 if it looks like nothing is using them. */
6632
6633static void
6634maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
6635{
6636 struct elf_link_hash_entry *sda = lsect->sym;
6637
6638 if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
6639 {
6640 asection *s;
6641
6642 s = bfd_get_section_by_name (output_bfd, lsect->name);
6643 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6644 {
6645 s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
6646 if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
6647 {
6648 sda->def_regular = 0;
6649 /* This is somewhat magic. See elf_link_output_extsym. */
6650 sda->ref_dynamic = 1;
6651 sda->forced_local = 0;
6652 }
6653 }
6654 }
6655}
6656
6657void
6658ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
6659{
6660 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6661
6662 if (htab != NULL)
6663 {
6664 maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
6665 maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
6666 }
6667}
6668
6669
0eb4a168
AM
6670/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6671
6672static bfd_boolean
6673ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6674{
6675 if (h->plt.plist != NULL
6676 && !h->def_regular
6677 && (!h->pointer_equality_needed
6678 || !h->ref_regular_nonweak))
6679 return FALSE;
6680
6681 return _bfd_elf_hash_symbol (h);
6682}
25dbc73a
AM
6683\f
6684#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6685
01017ef8
NS
6686/* Relaxation trampolines. r12 is available for clobbering (r11, is
6687 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6688static const int shared_stub_entry[] =
6689 {
6690 0x7c0802a6, /* mflr 0 */
6691 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6692 0x7d8802a6, /* mflr 12 */
6693 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
53291d1f 6694 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6695 0x7c0803a6, /* mtlr 0 */
01017ef8 6696 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6697 0x4e800420, /* bctr */
6698 };
6699
6700static const int stub_entry[] =
6701 {
01017ef8
NS
6702 0x3d800000, /* lis 12,xxx@ha */
6703 0x398c0000, /* addi 12,12,xxx@l */
6704 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6705 0x4e800420, /* bctr */
6706 };
6707
5446cbdf
AM
6708struct ppc_elf_relax_info
6709{
6710 unsigned int workaround_size;
d3e454b9 6711 unsigned int picfixup_size;
5446cbdf
AM
6712};
6713
6714/* This function implements long branch trampolines, and the ppc476
6715 icache bug workaround. Any section needing trampolines or patch
6716 space for the workaround has its size extended so that we can
53291d1f 6717 add trampolines at the end of the section. */
5446cbdf 6718
25dbc73a
AM
6719static bfd_boolean
6720ppc_elf_relax_section (bfd *abfd,
6721 asection *isec,
6722 struct bfd_link_info *link_info,
6723 bfd_boolean *again)
6724{
d3e454b9 6725 struct one_branch_fixup
25dbc73a 6726 {
d3e454b9 6727 struct one_branch_fixup *next;
25dbc73a 6728 asection *tsec;
01017ef8
NS
6729 /* Final link, can use the symbol offset. For a
6730 relocatable link we use the symbol's index. */
25dbc73a
AM
6731 bfd_vma toff;
6732 bfd_vma trampoff;
6733 };
7619e7c7 6734
25dbc73a
AM
6735 Elf_Internal_Shdr *symtab_hdr;
6736 bfd_byte *contents = NULL;
6737 Elf_Internal_Sym *isymbuf = NULL;
6738 Elf_Internal_Rela *internal_relocs = NULL;
5446cbdf 6739 Elf_Internal_Rela *irel, *irelend = NULL;
d3e454b9 6740 struct one_branch_fixup *branch_fixups = NULL;
5446cbdf 6741 struct ppc_elf_relax_info *relax_info = NULL;
9bc4e62b 6742 unsigned changes = 0;
5446cbdf 6743 bfd_boolean workaround_change;
d7128ce4 6744 struct ppc_elf_link_hash_table *htab;
d3e454b9 6745 bfd_size_type trampbase, trampoff, newsize, picfixup_size;
a6aa5195 6746 asection *got2;
50248c89 6747 bfd_boolean maybe_pasted;
7619e7c7 6748
25dbc73a 6749 *again = FALSE;
7619e7c7 6750
5446cbdf 6751 /* No need to do anything with non-alloc or non-code sections. */
c87b5a93 6752 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6753 || (isec->flags & SEC_CODE) == 0
5446cbdf
AM
6754 || (isec->flags & SEC_LINKER_CREATED) != 0
6755 || isec->size < 4)
25dbc73a 6756 return TRUE;
7619e7c7 6757
c8a1f254
NS
6758 /* We cannot represent the required PIC relocs in the output, so don't
6759 do anything. The linker doesn't support mixing -shared and -r
6760 anyway. */
0e1862bb 6761 if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
795bc6b3 6762 return TRUE;
5b914448 6763
5446cbdf
AM
6764 htab = ppc_elf_hash_table (link_info);
6765 if (htab == NULL)
6766 return TRUE;
6767
6768 isec->size = (isec->size + 3) & -4;
6769 if (isec->rawsize == 0)
6770 isec->rawsize = isec->size;
6771 trampbase = isec->size;
6772
53291d1f
AM
6773 BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
6774 || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
6775 isec->sec_info_type = SEC_INFO_TYPE_TARGET;
6776
d3e454b9
AM
6777 if (htab->params->ppc476_workaround
6778 || htab->params->pic_fixup > 0)
5446cbdf
AM
6779 {
6780 if (elf_section_data (isec)->sec_info == NULL)
6781 {
5446cbdf
AM
6782 elf_section_data (isec)->sec_info
6783 = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
6784 if (elf_section_data (isec)->sec_info == NULL)
6785 return FALSE;
6786 }
6787 relax_info = elf_section_data (isec)->sec_info;
6788 trampbase -= relax_info->workaround_size;
6789 }
6790
50248c89
AM
6791 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6792 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6793 /* Space for a branch around any trampolines. */
5446cbdf
AM
6794 trampoff = trampbase;
6795 if (maybe_pasted && trampbase == isec->rawsize)
50248c89 6796 trampoff += 4;
7619e7c7 6797
0ffa91dd 6798 symtab_hdr = &elf_symtab_hdr (abfd);
d3e454b9
AM
6799 picfixup_size = 0;
6800 if (htab->params->branch_trampolines
6801 || htab->params->pic_fixup > 0)
7619e7c7 6802 {
5446cbdf
AM
6803 /* Get a copy of the native relocations. */
6804 if (isec->reloc_count != 0)
25dbc73a 6805 {
5446cbdf
AM
6806 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6807 link_info->keep_memory);
6808 if (internal_relocs == NULL)
6809 goto error_return;
25dbc73a 6810 }
7619e7c7 6811
5446cbdf
AM
6812 got2 = bfd_get_section_by_name (abfd, ".got2");
6813
6814 irelend = internal_relocs + isec->reloc_count;
6815 for (irel = internal_relocs; irel < irelend; irel++)
25dbc73a 6816 {
5446cbdf
AM
6817 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
6818 bfd_vma toff, roff;
6819 asection *tsec;
d3e454b9 6820 struct one_branch_fixup *f;
5446cbdf 6821 size_t insn_offset = 0;
d3e454b9 6822 bfd_vma max_branch_offset = 0, val;
5446cbdf
AM
6823 bfd_byte *hit_addr;
6824 unsigned long t0;
6825 struct elf_link_hash_entry *h;
6826 struct plt_entry **plist;
6827 unsigned char sym_type;
6828
6829 switch (r_type)
6830 {
6831 case R_PPC_REL24:
6832 case R_PPC_LOCAL24PC:
6833 case R_PPC_PLTREL24:
6834 max_branch_offset = 1 << 25;
6835 break;
6836
6837 case R_PPC_REL14:
6838 case R_PPC_REL14_BRTAKEN:
6839 case R_PPC_REL14_BRNTAKEN:
6840 max_branch_offset = 1 << 15;
6841 break;
7fce784e 6842
d3e454b9
AM
6843 case R_PPC_ADDR16_HA:
6844 if (htab->params->pic_fixup > 0)
6845 break;
6846 continue;
6847
5446cbdf
AM
6848 default:
6849 continue;
6850 }
6851
6852 /* Get the value of the symbol referred to by the reloc. */
6853 h = NULL;
6854 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
25dbc73a 6855 {
5446cbdf
AM
6856 /* A local symbol. */
6857 Elf_Internal_Sym *isym;
6858
6859 /* Read this BFD's local symbols. */
25dbc73a 6860 if (isymbuf == NULL)
5446cbdf
AM
6861 {
6862 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6863 if (isymbuf == NULL)
6864 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6865 symtab_hdr->sh_info, 0,
6866 NULL, NULL, NULL);
6867 if (isymbuf == 0)
6868 goto error_return;
6869 }
6870 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6871 if (isym->st_shndx == SHN_UNDEF)
6872 tsec = bfd_und_section_ptr;
6873 else if (isym->st_shndx == SHN_ABS)
6874 tsec = bfd_abs_section_ptr;
6875 else if (isym->st_shndx == SHN_COMMON)
6876 tsec = bfd_com_section_ptr;
6877 else
6878 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
6879
6880 toff = isym->st_value;
6881 sym_type = ELF_ST_TYPE (isym->st_info);
25dbc73a 6882 }
25dbc73a 6883 else
5446cbdf
AM
6884 {
6885 /* Global symbol handling. */
6886 unsigned long indx;
7fce784e 6887
5446cbdf
AM
6888 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6889 h = elf_sym_hashes (abfd)[indx];
7619e7c7 6890
5446cbdf
AM
6891 while (h->root.type == bfd_link_hash_indirect
6892 || h->root.type == bfd_link_hash_warning)
6893 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 6894
5446cbdf
AM
6895 if (h->root.type == bfd_link_hash_defined
6896 || h->root.type == bfd_link_hash_defweak)
6897 {
6898 tsec = h->root.u.def.section;
6899 toff = h->root.u.def.value;
6900 }
6901 else if (h->root.type == bfd_link_hash_undefined
6902 || h->root.type == bfd_link_hash_undefweak)
6903 {
6904 tsec = bfd_und_section_ptr;
0e1862bb 6905 toff = bfd_link_relocatable (link_info) ? indx : 0;
5446cbdf
AM
6906 }
6907 else
6908 continue;
6909
9f7552cf
AM
6910 /* If this branch is to __tls_get_addr then we may later
6911 optimise away the call. We won't be needing a long-
6912 branch stub in that case. */
0e1862bb 6913 if (bfd_link_executable (link_info)
9f7552cf
AM
6914 && h == htab->tls_get_addr
6915 && irel != internal_relocs)
6916 {
6917 unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
6918 unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
6919 unsigned int tls_mask = 0;
6920
6921 /* The previous reloc should be one of R_PPC_TLSGD or
6922 R_PPC_TLSLD, or for older object files, a reloc
6923 on the __tls_get_addr arg setup insn. Get tls
6924 mask bits from the symbol on that reloc. */
6925 if (t_symndx < symtab_hdr->sh_info)
6926 {
6927 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6928
6929 if (local_got_offsets != NULL)
6930 {
6931 struct plt_entry **local_plt = (struct plt_entry **)
6932 (local_got_offsets + symtab_hdr->sh_info);
6933 char *lgot_masks = (char *)
6934 (local_plt + symtab_hdr->sh_info);
6935 tls_mask = lgot_masks[t_symndx];
6936 }
6937 }
6938 else
6939 {
6940 struct elf_link_hash_entry *th
6941 = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
6942
6943 while (th->root.type == bfd_link_hash_indirect
6944 || th->root.type == bfd_link_hash_warning)
6945 th = (struct elf_link_hash_entry *) th->root.u.i.link;
6946
6947 tls_mask
6948 = ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
6949 }
6950
6951 /* The mask bits tell us if the call will be
6952 optimised away. */
6953 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
6954 && (t_rtype == R_PPC_TLSGD
6955 || t_rtype == R_PPC_GOT_TLSGD16
6956 || t_rtype == R_PPC_GOT_TLSGD16_LO))
6957 continue;
6958 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
6959 && (t_rtype == R_PPC_TLSLD
6960 || t_rtype == R_PPC_GOT_TLSLD16
6961 || t_rtype == R_PPC_GOT_TLSLD16_LO))
6962 continue;
6963 }
6964
5446cbdf
AM
6965 sym_type = h->type;
6966 }
7619e7c7 6967
d3e454b9
AM
6968 if (r_type == R_PPC_ADDR16_HA)
6969 {
6970 if (h != NULL
6971 && !h->def_regular
6972 && h->protected_def
6973 && ppc_elf_hash_entry (h)->has_addr16_ha
6974 && ppc_elf_hash_entry (h)->has_addr16_lo)
6975 picfixup_size += 12;
6976 continue;
6977 }
6978
5446cbdf
AM
6979 /* The condition here under which we call find_plt_ent must
6980 match that in relocate_section. If we call find_plt_ent here
6981 but not in relocate_section, or vice versa, then the branch
6982 destination used here may be incorrect. */
6983 plist = NULL;
6984 if (h != NULL)
25dbc73a 6985 {
5446cbdf
AM
6986 /* We know is_branch_reloc (r_type) is true. */
6987 if (h->type == STT_GNU_IFUNC
6988 || r_type == R_PPC_PLTREL24)
6989 plist = &h->plt.plist;
25dbc73a 6990 }
5446cbdf
AM
6991 else if (sym_type == STT_GNU_IFUNC
6992 && elf_local_got_offsets (abfd) != NULL)
c8a1f254 6993 {
5446cbdf
AM
6994 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6995 struct plt_entry **local_plt = (struct plt_entry **)
6996 (local_got_offsets + symtab_hdr->sh_info);
6997 plist = local_plt + ELF32_R_SYM (irel->r_info);
c8a1f254 6998 }
5446cbdf 6999 if (plist != NULL)
a9585d22 7000 {
5446cbdf
AM
7001 bfd_vma addend = 0;
7002 struct plt_entry *ent;
7003
0e1862bb 7004 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
5446cbdf
AM
7005 addend = irel->r_addend;
7006 ent = find_plt_ent (plist, got2, addend);
7007 if (ent != NULL)
a9585d22 7008 {
5446cbdf
AM
7009 if (htab->plt_type == PLT_NEW
7010 || h == NULL
7011 || !htab->elf.dynamic_sections_created
7012 || h->dynindx == -1)
7013 {
7014 tsec = htab->glink;
7015 toff = ent->glink_offset;
7016 }
7017 else
7018 {
ce558b89 7019 tsec = htab->elf.splt;
5446cbdf
AM
7020 toff = ent->plt.offset;
7021 }
de972ffa
AM
7022 }
7023 }
de972ffa 7024
5446cbdf
AM
7025 /* If the branch and target are in the same section, you have
7026 no hope of adding stubs. We'll error out later should the
7027 branch overflow. */
7028 if (tsec == isec)
7029 continue;
25dbc73a 7030
5446cbdf
AM
7031 /* There probably isn't any reason to handle symbols in
7032 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
7033 attribute for a code section, and we are only looking at
7034 branches. However, implement it correctly here as a
7035 reference for other target relax_section functions. */
7036 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
7037 {
7038 /* At this stage in linking, no SEC_MERGE symbol has been
7039 adjusted, so all references to such symbols need to be
7040 passed through _bfd_merged_section_offset. (Later, in
7041 relocate_section, all SEC_MERGE symbols *except* for
7042 section symbols have been adjusted.)
7043
7044 gas may reduce relocations against symbols in SEC_MERGE
7045 sections to a relocation against the section symbol when
7046 the original addend was zero. When the reloc is against
7047 a section symbol we should include the addend in the
7048 offset passed to _bfd_merged_section_offset, since the
7049 location of interest is the original symbol. On the
7050 other hand, an access to "sym+addend" where "sym" is not
7051 a section symbol should not include the addend; Such an
7052 access is presumed to be an offset from "sym"; The
7053 location of interest is just "sym". */
7054 if (sym_type == STT_SECTION)
7055 toff += irel->r_addend;
7056
7057 toff
7058 = _bfd_merged_section_offset (abfd, &tsec,
7059 elf_section_data (tsec)->sec_info,
7060 toff);
7061
7062 if (sym_type != STT_SECTION)
7063 toff += irel->r_addend;
7064 }
7065 /* PLTREL24 addends are special. */
7066 else if (r_type != R_PPC_PLTREL24)
25dbc73a 7067 toff += irel->r_addend;
7619e7c7 7068
5446cbdf 7069 /* Attempted -shared link of non-pic code loses. */
0e1862bb 7070 if ((!bfd_link_relocatable (link_info)
5446cbdf
AM
7071 && tsec == bfd_und_section_ptr)
7072 || tsec->output_section == NULL
7073 || (tsec->owner != NULL
7074 && (tsec->owner->flags & BFD_PLUGIN) != 0))
7075 continue;
7619e7c7 7076
5446cbdf 7077 roff = irel->r_offset;
7de713b9 7078
5446cbdf
AM
7079 /* If the branch is in range, no need to do anything. */
7080 if (tsec != bfd_und_section_ptr
0e1862bb 7081 && (!bfd_link_relocatable (link_info)
5446cbdf
AM
7082 /* A relocatable link may have sections moved during
7083 final link, so do not presume they remain in range. */
7084 || tsec->output_section == isec->output_section))
7085 {
7086 bfd_vma symaddr, reladdr;
7619e7c7 7087
5446cbdf
AM
7088 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7089 reladdr = isec->output_section->vma + isec->output_offset + roff;
7090 if (symaddr - reladdr + max_branch_offset
7091 < 2 * max_branch_offset)
7092 continue;
7093 }
01017ef8 7094
5446cbdf 7095 /* Look for an existing fixup to this address. */
d3e454b9 7096 for (f = branch_fixups; f ; f = f->next)
5446cbdf
AM
7097 if (f->tsec == tsec && f->toff == toff)
7098 break;
252b5132 7099
5446cbdf
AM
7100 if (f == NULL)
7101 {
7102 size_t size;
7103 unsigned long stub_rtype;
25dbc73a 7104
5446cbdf
AM
7105 val = trampoff - roff;
7106 if (val >= max_branch_offset)
7107 /* Oh dear, we can't reach a trampoline. Don't try to add
7108 one. We'll report an error later. */
7109 continue;
252b5132 7110
0e1862bb 7111 if (bfd_link_pic (link_info))
5446cbdf
AM
7112 {
7113 size = 4 * ARRAY_SIZE (shared_stub_entry);
7114 insn_offset = 12;
7115 }
7116 else
7117 {
7118 size = 4 * ARRAY_SIZE (stub_entry);
7119 insn_offset = 0;
7120 }
7121 stub_rtype = R_PPC_RELAX;
ce558b89 7122 if (tsec == htab->elf.splt
5446cbdf
AM
7123 || tsec == htab->glink)
7124 {
7125 stub_rtype = R_PPC_RELAX_PLT;
7126 if (r_type == R_PPC_PLTREL24)
7127 stub_rtype = R_PPC_RELAX_PLTREL24;
7128 }
252b5132 7129
5446cbdf
AM
7130 /* Hijack the old relocation. Since we need two
7131 relocations for this use a "composite" reloc. */
7132 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
7133 stub_rtype);
7134 irel->r_offset = trampoff + insn_offset;
7135 if (r_type == R_PPC_PLTREL24
7136 && stub_rtype != R_PPC_RELAX_PLTREL24)
7137 irel->r_addend = 0;
7138
7139 /* Record the fixup so we don't do it again this section. */
7140 f = bfd_malloc (sizeof (*f));
d3e454b9 7141 f->next = branch_fixups;
5446cbdf
AM
7142 f->tsec = tsec;
7143 f->toff = toff;
7144 f->trampoff = trampoff;
d3e454b9 7145 branch_fixups = f;
5446cbdf
AM
7146
7147 trampoff += size;
7148 changes++;
25dbc73a
AM
7149 }
7150 else
7151 {
5446cbdf
AM
7152 val = f->trampoff - roff;
7153 if (val >= max_branch_offset)
7154 continue;
252b5132 7155
5446cbdf
AM
7156 /* Nop out the reloc, since we're finalizing things here. */
7157 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7158 }
252b5132 7159
5446cbdf
AM
7160 /* Get the section contents. */
7161 if (contents == NULL)
25dbc73a 7162 {
5446cbdf
AM
7163 /* Get cached copy if it exists. */
7164 if (elf_section_data (isec)->this_hdr.contents != NULL)
7165 contents = elf_section_data (isec)->this_hdr.contents;
25dbc73a 7166 /* Go get them off disk. */
5446cbdf 7167 else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
25dbc73a
AM
7168 goto error_return;
7169 }
252b5132 7170
5446cbdf
AM
7171 /* Fix up the existing branch to hit the trampoline. */
7172 hit_addr = contents + roff;
7173 switch (r_type)
7174 {
7175 case R_PPC_REL24:
7176 case R_PPC_LOCAL24PC:
7177 case R_PPC_PLTREL24:
7178 t0 = bfd_get_32 (abfd, hit_addr);
7179 t0 &= ~0x3fffffc;
7180 t0 |= val & 0x3fffffc;
7181 bfd_put_32 (abfd, t0, hit_addr);
7182 break;
252b5132 7183
5446cbdf
AM
7184 case R_PPC_REL14:
7185 case R_PPC_REL14_BRTAKEN:
7186 case R_PPC_REL14_BRNTAKEN:
7187 t0 = bfd_get_32 (abfd, hit_addr);
7188 t0 &= ~0xfffc;
7189 t0 |= val & 0xfffc;
7190 bfd_put_32 (abfd, t0, hit_addr);
7191 break;
7192 }
25dbc73a 7193 }
252b5132 7194
d3e454b9 7195 while (branch_fixups != NULL)
25dbc73a 7196 {
d3e454b9
AM
7197 struct one_branch_fixup *f = branch_fixups;
7198 branch_fixups = branch_fixups->next;
25dbc73a
AM
7199 free (f);
7200 }
5446cbdf 7201 }
252b5132 7202
5446cbdf
AM
7203 workaround_change = FALSE;
7204 newsize = trampoff;
795bc6b3 7205 if (htab->params->ppc476_workaround
0e1862bb 7206 && (!bfd_link_relocatable (link_info)
795bc6b3 7207 || isec->output_section->alignment_power >= htab->params->pagesize_p2))
5446cbdf
AM
7208 {
7209 bfd_vma addr, end_addr;
7210 unsigned int crossings;
795bc6b3 7211 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf
AM
7212
7213 addr = isec->output_section->vma + isec->output_offset;
6128f9cf 7214 end_addr = addr + trampoff;
5446cbdf 7215 addr &= -pagesize;
795bc6b3 7216 crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
5446cbdf
AM
7217 if (crossings != 0)
7218 {
7219 /* Keep space aligned, to ensure the patch code itself does
7220 not cross a page. Don't decrease size calculated on a
7221 previous pass as otherwise we might never settle on a layout. */
1e269e9b 7222 newsize = 15 - ((end_addr - 1) & 15);
5446cbdf
AM
7223 newsize += crossings * 16;
7224 if (relax_info->workaround_size < newsize)
7225 {
7226 relax_info->workaround_size = newsize;
7227 workaround_change = TRUE;
5446cbdf
AM
7228 }
7229 /* Ensure relocate_section is called. */
7230 isec->flags |= SEC_RELOC;
7231 }
7232 newsize = trampoff + relax_info->workaround_size;
7233 }
7234
d3e454b9
AM
7235 if (htab->params->pic_fixup > 0)
7236 {
7237 picfixup_size -= relax_info->picfixup_size;
7238 if (picfixup_size != 0)
7239 relax_info->picfixup_size += picfixup_size;
7240 newsize += relax_info->picfixup_size;
7241 }
7242
7243 if (changes != 0 || picfixup_size != 0 || workaround_change)
5446cbdf
AM
7244 isec->size = newsize;
7245
25dbc73a
AM
7246 if (isymbuf != NULL
7247 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7248 {
25dbc73a
AM
7249 if (! link_info->keep_memory)
7250 free (isymbuf);
252b5132 7251 else
25dbc73a
AM
7252 {
7253 /* Cache the symbols for elf_link_input_bfd. */
7254 symtab_hdr->contents = (unsigned char *) isymbuf;
7255 }
252b5132
RH
7256 }
7257
25dbc73a
AM
7258 if (contents != NULL
7259 && elf_section_data (isec)->this_hdr.contents != contents)
7260 {
53291d1f 7261 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7262 free (contents);
7263 else
7264 {
7265 /* Cache the section contents for elf_link_input_bfd. */
7266 elf_section_data (isec)->this_hdr.contents = contents;
7267 }
7268 }
252b5132 7269
d3e454b9 7270 changes += picfixup_size;
9bc4e62b 7271 if (changes != 0)
25dbc73a 7272 {
9bc4e62b
NS
7273 /* Append sufficient NOP relocs so we can write out relocation
7274 information for the trampolines. */
d4730f92 7275 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7276 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7277 * sizeof (*new_relocs));
7278 unsigned ix;
5b914448 7279
9bc4e62b
NS
7280 if (!new_relocs)
7281 goto error_return;
7282 memcpy (new_relocs, internal_relocs,
7283 isec->reloc_count * sizeof (*new_relocs));
7284 for (ix = changes; ix--;)
7285 {
7286 irel = new_relocs + ix + isec->reloc_count;
7287
7288 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7289 }
7290 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7291 free (internal_relocs);
9bc4e62b
NS
7292 elf_section_data (isec)->relocs = new_relocs;
7293 isec->reloc_count += changes;
d4730f92
BS
7294 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7295 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7296 }
5446cbdf
AM
7297 else if (internal_relocs != NULL
7298 && elf_section_data (isec)->relocs != internal_relocs)
9bc4e62b 7299 free (internal_relocs);
252b5132 7300
5446cbdf 7301 *again = changes != 0 || workaround_change;
b34976b6 7302 return TRUE;
25dbc73a
AM
7303
7304 error_return:
d3e454b9 7305 while (branch_fixups != NULL)
5446cbdf 7306 {
d3e454b9
AM
7307 struct one_branch_fixup *f = branch_fixups;
7308 branch_fixups = branch_fixups->next;
5446cbdf
AM
7309 free (f);
7310 }
25dbc73a
AM
7311 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7312 free (isymbuf);
7313 if (contents != NULL
7314 && elf_section_data (isec)->this_hdr.contents != contents)
7315 free (contents);
7316 if (internal_relocs != NULL
7317 && elf_section_data (isec)->relocs != internal_relocs)
7318 free (internal_relocs);
7319 return FALSE;
252b5132 7320}
252b5132 7321\f
8a696751
AM
7322/* What to do when ld finds relocations against symbols defined in
7323 discarded sections. */
7324
7325static unsigned int
7326ppc_elf_action_discarded (asection *sec)
7327{
7328 if (strcmp (".fixup", sec->name) == 0)
7329 return 0;
7330
7331 if (strcmp (".got2", sec->name) == 0)
7332 return 0;
7333
7334 return _bfd_elf_default_action_discarded (sec);
7335}
c9a2f333 7336\f
25dbc73a 7337/* Fill in the address for a pointer generated in a linker section. */
252b5132 7338
25dbc73a 7339static bfd_vma
76750a2f 7340elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7341 elf_linker_section_t *lsect,
7342 struct elf_link_hash_entry *h,
7343 bfd_vma relocation,
2bb04cf2 7344 const Elf_Internal_Rela *rel)
25dbc73a
AM
7345{
7346 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7347
25dbc73a 7348 BFD_ASSERT (lsect != NULL);
252b5132 7349
25dbc73a 7350 if (h != NULL)
252b5132 7351 {
25dbc73a
AM
7352 /* Handle global symbol. */
7353 struct ppc_elf_link_hash_entry *eh;
252b5132 7354
25dbc73a 7355 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7356 BFD_ASSERT (eh->elf.def_regular);
7357 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7358 }
7359 else
7360 {
7361 /* Handle local symbol. */
7362 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7363
0c8d6e5c 7364 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7365 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7366 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7367 }
252b5132 7368
76750a2f
AM
7369 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7370 rel->r_addend,
7371 lsect);
7372 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7373
76750a2f
AM
7374 /* Offset will always be a multiple of four, so use the bottom bit
7375 as a "written" flag. */
7376 if ((linker_section_ptr->offset & 1) == 0)
7377 {
7378 bfd_put_32 (lsect->section->owner,
7379 relocation + linker_section_ptr->addend,
7380 lsect->section->contents + linker_section_ptr->offset);
7381 linker_section_ptr->offset += 1;
252b5132
RH
7382 }
7383
bd6c6e2b
AM
7384 relocation = (lsect->section->output_section->vma
7385 + lsect->section->output_offset
76750a2f 7386 + linker_section_ptr->offset - 1
bd6c6e2b 7387 - SYM_VAL (lsect->sym));
252b5132 7388
25dbc73a
AM
7389#ifdef DEBUG
7390 fprintf (stderr,
7391 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7392 lsect->name, (long) relocation, (long) relocation);
7393#endif
252b5132 7394
bd6c6e2b 7395 return relocation;
252b5132 7396}
25dbc73a 7397
e054468f
AM
7398#define PPC_LO(v) ((v) & 0xffff)
7399#define PPC_HI(v) (((v) >> 16) & 0xffff)
7400#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7401
7402static void
a7f2871e 7403write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7404 struct bfd_link_info *info)
7405{
7406 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7407 bfd *output_bfd = info->output_bfd;
7408 bfd_vma plt;
e054468f
AM
7409
7410 plt = ((ent->plt.offset & ~1)
7411 + plt_sec->output_section->vma
7412 + plt_sec->output_offset);
e054468f 7413
0e1862bb 7414 if (bfd_link_pic (info))
e054468f
AM
7415 {
7416 bfd_vma got = 0;
7417
7418 if (ent->addend >= 32768)
7419 got = (ent->addend
7420 + ent->sec->output_section->vma
7421 + ent->sec->output_offset);
7422 else if (htab->elf.hgot != NULL)
7423 got = SYM_VAL (htab->elf.hgot);
7424
7425 plt -= got;
7426
7427 if (plt + 0x8000 < 0x10000)
7428 {
7429 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7430 p += 4;
7431 bfd_put_32 (output_bfd, MTCTR_11, p);
7432 p += 4;
7433 bfd_put_32 (output_bfd, BCTR, p);
7434 p += 4;
da3a2088 7435 bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
e054468f
AM
7436 p += 4;
7437 }
7438 else
7439 {
7440 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7441 p += 4;
7442 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7443 p += 4;
7444 bfd_put_32 (output_bfd, MTCTR_11, p);
7445 p += 4;
7446 bfd_put_32 (output_bfd, BCTR, p);
7447 p += 4;
7448 }
7449 }
7450 else
7451 {
7452 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7453 p += 4;
7454 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7455 p += 4;
7456 bfd_put_32 (output_bfd, MTCTR_11, p);
7457 p += 4;
7458 bfd_put_32 (output_bfd, BCTR, p);
7459 p += 4;
7460 }
7461}
7462
bd6c6e2b
AM
7463/* Return true if symbol is defined statically. */
7464
7465static bfd_boolean
7466is_static_defined (struct elf_link_hash_entry *h)
7467{
7468 return ((h->root.type == bfd_link_hash_defined
7469 || h->root.type == bfd_link_hash_defweak)
7470 && h->root.u.def.section != NULL
7471 && h->root.u.def.section->output_section != NULL);
7472}
7473
2d0f3896
AM
7474/* If INSN is an opcode that may be used with an @tls operand, return
7475 the transformed insn for TLS optimisation, otherwise return 0. If
7476 REG is non-zero only match an insn with RB or RA equal to REG. */
7477
7478unsigned int
7479_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7480{
7481 unsigned int rtra;
7482
7483 if ((insn & (0x3f << 26)) != 31 << 26)
7484 return 0;
7485
7486 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7487 rtra = insn & ((1 << 26) - (1 << 16));
7488 else if (((insn >> 16) & 0x1f) == reg)
7489 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7490 else
7491 return 0;
7492
7493 if ((insn & (0x3ff << 1)) == 266 << 1)
7494 /* add -> addi. */
7495 insn = 14 << 26;
7496 else if ((insn & (0x1f << 1)) == 23 << 1
7497 && ((insn & (0x1f << 6)) < 14 << 6
7498 || ((insn & (0x1f << 6)) >= 16 << 6
7499 && (insn & (0x1f << 6)) < 24 << 6)))
7500 /* load and store indexed -> dform. */
7501 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7502 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7503 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7504 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7505 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7506 /* lwax -> lwa. */
7507 insn = (58 << 26) | 2;
7508 else
7509 return 0;
7510 insn |= rtra;
7511 return insn;
7512}
7513
766bc656
AM
7514/* If INSN is an opcode that may be used with an @tprel operand, return
7515 the transformed insn for an undefined weak symbol, ie. with the
7516 thread pointer REG operand removed. Otherwise return 0. */
7517
7518unsigned int
7519_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7520{
7521 if ((insn & (0x1f << 16)) == reg << 16
7522 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7523 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7524 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7525 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7526 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7527 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7528 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7529 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7530 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7531 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7532 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7533 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7534 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7535 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7536 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7537 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7538 && (insn & 3) != 1)
7539 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7540 && ((insn & 3) == 0 || (insn & 3) == 3))))
7541 {
7542 insn &= ~(0x1f << 16);
7543 }
7544 else if ((insn & (0x1f << 21)) == reg << 21
7545 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7546 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7547 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7548 {
7549 insn &= ~(0x1f << 21);
7550 insn |= (insn & (0x1f << 16)) << 5;
7551 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7552 insn -= 2 >> 26; /* convert to ori,oris */
7553 }
7554 else
7555 insn = 0;
7556 return insn;
7557}
7558
1fe532cf
AM
7559static bfd_boolean
7560is_insn_ds_form (unsigned int insn)
7561{
7562 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7563 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7564 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7565 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7566}
7567
7568static bfd_boolean
7569is_insn_dq_form (unsigned int insn)
7570{
a680de9a
PB
7571 return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
7572 || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
7573 && (insn & 3) == 1));
1fe532cf
AM
7574}
7575
252b5132
RH
7576/* The RELOCATE_SECTION function is called by the ELF backend linker
7577 to handle the relocations for a section.
7578
7579 The relocs are always passed as Rela structures; if the section
7580 actually uses Rel structures, the r_addend field will always be
7581 zero.
7582
7583 This function is responsible for adjust the section contents as
7584 necessary, and (if using Rela relocs and generating a
1049f94e 7585 relocatable output file) adjusting the reloc addend as
252b5132
RH
7586 necessary.
7587
7588 This function does not have to worry about setting the reloc
7589 address or the reloc symbol index.
7590
7591 LOCAL_SYMS is a pointer to the swapped in local symbols.
7592
7593 LOCAL_SECTIONS is an array giving the section in the input file
7594 corresponding to the st_shndx field of each local symbol.
7595
7596 The global hash table entry for the global symbols can be found
7597 via elf_sym_hashes (input_bfd).
7598
1049f94e 7599 When generating relocatable output, this function must handle
252b5132
RH
7600 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7601 going to be the section symbol corresponding to the output
7602 section, which means that the addend must be adjusted
7603 accordingly. */
7604
b34976b6 7605static bfd_boolean
55fd94b0
AM
7606ppc_elf_relocate_section (bfd *output_bfd,
7607 struct bfd_link_info *info,
7608 bfd *input_bfd,
7609 asection *input_section,
7610 bfd_byte *contents,
7611 Elf_Internal_Rela *relocs,
7612 Elf_Internal_Sym *local_syms,
7613 asection **local_sections)
252b5132 7614{
7619e7c7
AM
7615 Elf_Internal_Shdr *symtab_hdr;
7616 struct elf_link_hash_entry **sym_hashes;
7617 struct ppc_elf_link_hash_table *htab;
7618 Elf_Internal_Rela *rel;
c316a17c 7619 Elf_Internal_Rela *wrel;
7619e7c7
AM
7620 Elf_Internal_Rela *relend;
7621 Elf_Internal_Rela outrel;
f95f8542 7622 asection *got2;
252b5132 7623 bfd_vma *local_got_offsets;
b34976b6 7624 bfd_boolean ret = TRUE;
95f0d0d2 7625 bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
3348747a 7626 bfd_boolean is_vxworks_tls;
d3e454b9
AM
7627 unsigned int picfixup_size = 0;
7628 struct ppc_elf_relax_info *relax_info = NULL;
b34976b6 7629
252b5132 7630#ifdef DEBUG
d003868e
AM
7631 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7632 "%ld relocations%s",
7633 input_bfd, input_section,
7634 (long) input_section->reloc_count,
0e1862bb 7635 (bfd_link_relocatable (info)) ? " (relocatable)" : "");
252b5132
RH
7636#endif
7637
a6aa5195
AM
7638 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7639
e47cd125 7640 /* Initialize howto table if not already done. */
8da6118f 7641 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7642 ppc_elf_howto_init ();
7643
7619e7c7 7644 htab = ppc_elf_hash_table (info);
252b5132 7645 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7646 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7647 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7648 /* We have to handle relocations in vxworks .tls_vars sections
7649 specially, because the dynamic loader is 'weird'. */
0e1862bb 7650 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS
7651 && !strcmp (input_section->output_section->name,
7652 ".tls_vars"));
d3e454b9
AM
7653 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
7654 relax_info = elf_section_data (input_section)->sec_info;
c316a17c 7655 rel = wrel = relocs;
7619e7c7 7656 relend = relocs + input_section->reloc_count;
c316a17c 7657 for (; rel < relend; wrel++, rel++)
252b5132 7658 {
7619e7c7
AM
7659 enum elf_ppc_reloc_type r_type;
7660 bfd_vma addend;
7661 bfd_reloc_status_type r;
7662 Elf_Internal_Sym *sym;
7663 asection *sec;
7664 struct elf_link_hash_entry *h;
7665 const char *sym_name;
252b5132
RH
7666 reloc_howto_type *howto;
7667 unsigned long r_symndx;
7668 bfd_vma relocation;
91d6fa6a 7669 bfd_vma branch_bit, from;
7619e7c7
AM
7670 bfd_boolean unresolved_reloc;
7671 bfd_boolean warned;
7672 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7673 struct plt_entry **ifunc;
86c95733 7674 struct reloc_howto_struct alt_howto;
7619e7c7 7675
c316a17c 7676 again:
55fd94b0
AM
7677 r_type = ELF32_R_TYPE (rel->r_info);
7678 sym = NULL;
7679 sec = NULL;
7680 h = NULL;
7619e7c7
AM
7681 unresolved_reloc = FALSE;
7682 warned = FALSE;
252b5132 7683 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7684
252b5132
RH
7685 if (r_symndx < symtab_hdr->sh_info)
7686 {
7687 sym = local_syms + r_symndx;
7688 sec = local_sections[r_symndx];
26c61ae5 7689 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7690
8517fae7 7691 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7692 }
7693 else
7694 {
62d887d4
L
7695 bfd_boolean ignored;
7696
b2a8e766
AM
7697 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7698 r_symndx, symtab_hdr, sym_hashes,
7699 h, sec, relocation,
62d887d4 7700 unresolved_reloc, warned, ignored);
9abc968f 7701
252b5132 7702 sym_name = h->root.root.string;
7619e7c7
AM
7703 }
7704
dbaa2011 7705 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7706 {
7707 /* For relocs against symbols from removed linkonce sections,
7708 or sections discarded by a linker script, we just want the
7709 section contents zeroed. Avoid any special processing. */
7710 howto = NULL;
7711 if (r_type < R_PPC_max)
7712 howto = ppc_elf_howto_table[r_type];
c316a17c
AM
7713
7714 _bfd_clear_contents (howto, input_bfd, input_section,
7715 contents + rel->r_offset);
7716 wrel->r_offset = rel->r_offset;
7717 wrel->r_info = 0;
7718 wrel->r_addend = 0;
7719
7720 /* For ld -r, remove relocations in debug sections against
dcd2b8a0 7721 symbols defined in discarded sections. Not done for
c316a17c
AM
7722 non-debug to preserve relocs in .eh_frame which the
7723 eh_frame editing code expects to be present. */
7724 if (bfd_link_relocatable (info)
7725 && (input_section->flags & SEC_DEBUGGING))
7726 wrel--;
7727
7728 continue;
ab96bf03
AM
7729 }
7730
0e1862bb 7731 if (bfd_link_relocatable (info))
ab96bf03
AM
7732 {
7733 if (got2 != NULL
7734 && r_type == R_PPC_PLTREL24
f75e0e33 7735 && rel->r_addend != 0)
ab96bf03
AM
7736 {
7737 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7738 addend specifies the GOT pointer offset within .got2. */
7739 rel->r_addend += got2->output_offset;
7740 }
53291d1f
AM
7741 if (r_type != R_PPC_RELAX_PLT
7742 && r_type != R_PPC_RELAX_PLTREL24
7743 && r_type != R_PPC_RELAX)
c316a17c 7744 goto copy_reloc;
ab96bf03
AM
7745 }
7746
7619e7c7
AM
7747 /* TLS optimizations. Replace instruction sequences and relocs
7748 based on information we collected in tls_optimize. We edit
7749 RELOCS so that --emit-relocs will output something sensible
7750 for the final instruction stream. */
7751 tls_mask = 0;
7752 tls_gd = 0;
727fc41e
AM
7753 if (h != NULL)
7754 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7755 else if (local_got_offsets != NULL)
7619e7c7 7756 {
e054468f 7757 struct plt_entry **local_plt;
727fc41e 7758 char *lgot_masks;
e054468f
AM
7759 local_plt
7760 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7761 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7762 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7763 }
7764
7765 /* Ensure reloc mapping code below stays sane. */
7766 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7767 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7768 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7769 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7770 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7771 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7772 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7773 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7774 abort ();
7775 switch (r_type)
7776 {
7777 default:
7778 break;
7779
7780 case R_PPC_GOT_TPREL16:
7781 case R_PPC_GOT_TPREL16_LO:
e054468f 7782 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7783 && (tls_mask & TLS_TPREL) == 0)
7784 {
7785 bfd_vma insn;
91d6fa6a 7786
95f0d0d2 7787 insn = bfd_get_32 (input_bfd,
c316a17c 7788 contents + rel->r_offset - d_offset);
7619e7c7
AM
7789 insn &= 31 << 21;
7790 insn |= 0x3c020000; /* addis 0,2,0 */
95f0d0d2 7791 bfd_put_32 (input_bfd, insn,
c316a17c 7792 contents + rel->r_offset - d_offset);
7619e7c7
AM
7793 r_type = R_PPC_TPREL16_HA;
7794 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7795 }
7796 break;
7797
7798 case R_PPC_TLS:
e054468f 7799 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7800 && (tls_mask & TLS_TPREL) == 0)
7801 {
2d0f3896
AM
7802 bfd_vma insn;
7803
95f0d0d2 7804 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2d0f3896
AM
7805 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7806 if (insn == 0)
7619e7c7 7807 abort ();
95f0d0d2 7808 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
7619e7c7
AM
7809 r_type = R_PPC_TPREL16_LO;
7810 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7811
7619e7c7 7812 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7813 PPC_TPREL16_LO which is at low-order half-word. */
7814 rel->r_offset += d_offset;
7619e7c7
AM
7815 }
7816 break;
7817
7818 case R_PPC_GOT_TLSGD16_HI:
7819 case R_PPC_GOT_TLSGD16_HA:
7820 tls_gd = TLS_TPRELGD;
e054468f 7821 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
7822 goto tls_gdld_hi;
7823 break;
7824
7825 case R_PPC_GOT_TLSLD16_HI:
7826 case R_PPC_GOT_TLSLD16_HA:
e054468f 7827 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
7828 {
7829 tls_gdld_hi:
7830 if ((tls_mask & tls_gd) != 0)
7831 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7832 + R_PPC_GOT_TPREL16);
7833 else
7834 {
4fe5ca5b 7835 rel->r_offset -= d_offset;
95f0d0d2 7836 bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
7619e7c7
AM
7837 r_type = R_PPC_NONE;
7838 }
7839 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7840 }
7841 break;
7842
7843 case R_PPC_GOT_TLSGD16:
7844 case R_PPC_GOT_TLSGD16_LO:
7845 tls_gd = TLS_TPRELGD;
e054468f 7846 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 7847 goto tls_ldgd_opt;
7619e7c7
AM
7848 break;
7849
7850 case R_PPC_GOT_TLSLD16:
7851 case R_PPC_GOT_TLSLD16_LO:
e054468f 7852 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 7853 {
3a71aa26 7854 unsigned int insn1, insn2;
b7fcf6f6 7855 bfd_vma offset;
7619e7c7 7856
b7fcf6f6 7857 tls_ldgd_opt:
727fc41e
AM
7858 offset = (bfd_vma) -1;
7859 /* If not using the newer R_PPC_TLSGD/LD to mark
7860 __tls_get_addr calls, we must trust that the call
7861 stays with its arg setup insns, ie. that the next
7862 reloc is the __tls_get_addr call associated with
7863 the current reloc. Edit both insns. */
7864 if (input_section->has_tls_get_addr_call
7865 && rel + 1 < relend
7866 && branch_reloc_hash_match (input_bfd, rel + 1,
7867 htab->tls_get_addr))
7868 offset = rel[1].r_offset;
b86ac8e3
AM
7869 /* We read the low GOT_TLS insn because we need to keep
7870 the destination reg. It may be something other than
7871 the usual r3, and moved to r3 before the call by
7872 intervening code. */
95f0d0d2 7873 insn1 = bfd_get_32 (input_bfd,
b86ac8e3 7874 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7875 if ((tls_mask & tls_gd) != 0)
7876 {
7877 /* IE */
b86ac8e3 7878 insn1 &= (0x1f << 21) | (0x1f << 16);
b7fcf6f6 7879 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
7880 if (offset != (bfd_vma) -1)
7881 {
f58d5a2d 7882 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e 7883 insn2 = 0x7c631214; /* add 3,3,2 */
95f0d0d2 7884 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 7885 }
b7fcf6f6
AM
7886 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7887 + R_PPC_GOT_TPREL16);
7888 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7889 }
7890 else
7891 {
7892 /* LE */
b86ac8e3
AM
7893 insn1 &= 0x1f << 21;
7894 insn1 |= 0x3c020000; /* addis r,2,0 */
7619e7c7
AM
7895 if (tls_gd == 0)
7896 {
b7fcf6f6 7897 /* Was an LD reloc. */
1d483afe
AM
7898 for (r_symndx = 0;
7899 r_symndx < symtab_hdr->sh_info;
7900 r_symndx++)
7901 if (local_sections[r_symndx] == sec)
7902 break;
7903 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7904 r_symndx = STN_UNDEF;
b7fcf6f6 7905 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7906 if (r_symndx != STN_UNDEF)
1d483afe
AM
7907 rel->r_addend -= (local_syms[r_symndx].st_value
7908 + sec->output_offset
7909 + sec->output_section->vma);
7619e7c7 7910 }
b7fcf6f6
AM
7911 r_type = R_PPC_TPREL16_HA;
7912 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
7913 if (offset != (bfd_vma) -1)
7914 {
7915 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7916 rel[1].r_offset = offset + d_offset;
7917 rel[1].r_addend = rel->r_addend;
7918 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 7919 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e 7920 }
b7fcf6f6 7921 }
95f0d0d2 7922 bfd_put_32 (input_bfd, insn1,
b7fcf6f6 7923 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7924 if (tls_gd == 0)
7925 {
7926 /* We changed the symbol on an LD reloc. Start over
7927 in order to get h, sym, sec etc. right. */
c316a17c 7928 goto again;
7619e7c7 7929 }
252b5132 7930 }
7619e7c7 7931 break;
727fc41e
AM
7932
7933 case R_PPC_TLSGD:
e054468f 7934 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
7935 {
7936 unsigned int insn2;
7937 bfd_vma offset = rel->r_offset;
7938
7939 if ((tls_mask & TLS_TPRELGD) != 0)
7940 {
7941 /* IE */
7942 r_type = R_PPC_NONE;
7943 insn2 = 0x7c631214; /* add 3,3,2 */
7944 }
7945 else
7946 {
7947 /* LE */
7948 r_type = R_PPC_TPREL16_LO;
7949 rel->r_offset += d_offset;
7950 insn2 = 0x38630000; /* addi 3,3,0 */
7951 }
7952 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
95f0d0d2 7953 bfd_put_32 (input_bfd, insn2, contents + offset);
727fc41e
AM
7954 /* Zap the reloc on the _tls_get_addr call too. */
7955 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 7956 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7957 }
7958 break;
7959
7960 case R_PPC_TLSLD:
e054468f 7961 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
7962 {
7963 unsigned int insn2;
7964
7965 for (r_symndx = 0;
7966 r_symndx < symtab_hdr->sh_info;
7967 r_symndx++)
7968 if (local_sections[r_symndx] == sec)
7969 break;
7970 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7971 r_symndx = STN_UNDEF;
727fc41e 7972 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7973 if (r_symndx != STN_UNDEF)
727fc41e
AM
7974 rel->r_addend -= (local_syms[r_symndx].st_value
7975 + sec->output_offset
7976 + sec->output_section->vma);
7977
7978 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7979 rel->r_offset += d_offset;
7980 insn2 = 0x38630000; /* addi 3,3,0 */
95f0d0d2 7981 bfd_put_32 (input_bfd, insn2,
727fc41e
AM
7982 contents + rel->r_offset - d_offset);
7983 /* Zap the reloc on the _tls_get_addr call too. */
7984 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 7985 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
c316a17c 7986 goto again;
727fc41e
AM
7987 }
7988 break;
7619e7c7
AM
7989 }
7990
7991 /* Handle other relocations that tweak non-addend part of insn. */
7992 branch_bit = 0;
7993 switch (r_type)
7994 {
7995 default:
7996 break;
7997
7998 /* Branch taken prediction relocations. */
7999 case R_PPC_ADDR14_BRTAKEN:
8000 case R_PPC_REL14_BRTAKEN:
8001 branch_bit = BRANCH_PREDICT_BIT;
1a0670f3 8002 /* Fall through. */
7619e7c7 8003
4cc11e76 8004 /* Branch not taken prediction relocations. */
7619e7c7
AM
8005 case R_PPC_ADDR14_BRNTAKEN:
8006 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
8007 {
8008 bfd_vma insn;
7619e7c7 8009
95f0d0d2 8010 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
91d6fa6a
NC
8011 insn &= ~BRANCH_PREDICT_BIT;
8012 insn |= branch_bit;
7619e7c7 8013
91d6fa6a
NC
8014 from = (rel->r_offset
8015 + input_section->output_offset
8016 + input_section->output_section->vma);
7619e7c7 8017
91d6fa6a
NC
8018 /* Invert 'y' bit if not the default. */
8019 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8020 insn ^= BRANCH_PREDICT_BIT;
8021
95f0d0d2 8022 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
91d6fa6a
NC
8023 break;
8024 }
252b5132
RH
8025 }
8026
d3e454b9
AM
8027 if (ELIMINATE_COPY_RELOCS
8028 && h != NULL
8029 && !h->def_regular
8030 && h->protected_def
8031 && ppc_elf_hash_entry (h)->has_addr16_ha
8032 && ppc_elf_hash_entry (h)->has_addr16_lo
8033 && htab->params->pic_fixup > 0)
8034 {
8035 /* Convert lis;addi or lis;load/store accessing a protected
8036 variable defined in a shared library to PIC. */
8037 unsigned int insn;
8038
8039 if (r_type == R_PPC_ADDR16_HA)
8040 {
95f0d0d2 8041 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8042 contents + rel->r_offset - d_offset);
8043 if ((insn & (0x3f << 26)) == (15u << 26)
8044 && (insn & (0x1f << 16)) == 0 /* lis */)
8045 {
8046 bfd_byte *p;
8047 bfd_vma off;
8048 bfd_vma got_addr;
8049
8050 p = (contents + input_section->size
8051 - relax_info->workaround_size
8052 - relax_info->picfixup_size
8053 + picfixup_size);
8054 off = (p - contents) - (rel->r_offset - d_offset);
8055 if (off > 0x1fffffc || (off & 3) != 0)
8056 info->callbacks->einfo
174d0a74 8057 (_("%H: fixup branch overflow\n"),
d3e454b9
AM
8058 input_bfd, input_section, rel->r_offset);
8059
95f0d0d2 8060 bfd_put_32 (input_bfd, B | off,
d3e454b9 8061 contents + rel->r_offset - d_offset);
ce558b89
AM
8062 got_addr = (htab->elf.sgot->output_section->vma
8063 + htab->elf.sgot->output_offset
d3e454b9 8064 + (h->got.offset & ~1));
c316a17c
AM
8065 wrel->r_offset = (p - contents) + d_offset;
8066 wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
8067 wrel->r_addend = got_addr;
d3e454b9 8068 insn &= ~0xffff;
4aef7643 8069 insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
95f0d0d2 8070 bfd_put_32 (input_bfd, insn, p);
d3e454b9
AM
8071
8072 /* Convert lis to lwz, loading address from GOT. */
8073 insn &= ~0xffff;
8074 insn ^= (32u ^ 15u) << 26;
8075 insn |= (insn & (0x1f << 21)) >> 5;
8076 insn |= got_addr & 0xffff;
95f0d0d2 8077 bfd_put_32 (input_bfd, insn, p + 4);
d3e454b9 8078
95f0d0d2 8079 bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
d3e454b9
AM
8080 picfixup_size += 12;
8081
8082 /* Use one of the spare relocs, so --emit-relocs
8083 output is reasonable. */
8084 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
c316a17c
AM
8085 wrel++, rel++;
8086 rel->r_offset = wrel[-1].r_offset + 4;
d3e454b9 8087 rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
c316a17c 8088 rel->r_addend = wrel[-1].r_addend;
d3e454b9
AM
8089
8090 /* Continue on as if we had a got reloc, to output
8091 dynamic reloc. */
8092 r_type = R_PPC_GOT16_LO;
8093 }
8094 else
2c4d9cbe 8095 _bfd_error_handler
695344c0 8096 /* xgettext:c-format */
e3fbc3da 8097 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8098 input_bfd, input_section, rel->r_offset,
8099 "R_PPC_ADDR16_HA", insn);
8100 }
8101 else if (r_type == R_PPC_ADDR16_LO)
8102 {
95f0d0d2 8103 insn = bfd_get_32 (input_bfd,
d3e454b9
AM
8104 contents + rel->r_offset - d_offset);
8105 if ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8106 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8107 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8108 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8109 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8110 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8111 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8112 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8113 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8114 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8115 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8116 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8117 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8118 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8119 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8120 && (insn & 3) != 1)
8121 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8122 && ((insn & 3) == 0 || (insn & 3) == 3)))
8123 {
8124 /* Arrange to apply the reloc addend, if any. */
8125 relocation = 0;
8126 unresolved_reloc = FALSE;
8127 rel->r_info = ELF32_R_INFO (0, r_type);
8128 }
8129 else
2c4d9cbe 8130 _bfd_error_handler
695344c0 8131 /* xgettext:c-format */
e3fbc3da 8132 (_("%B(%A+%#Lx): error: %s with unexpected instruction %#x"),
d3e454b9
AM
8133 input_bfd, input_section, rel->r_offset,
8134 "R_PPC_ADDR16_LO", insn);
8135 }
8136 }
8137
e054468f 8138 ifunc = NULL;
25f23106 8139 if (!htab->is_vxworks)
e054468f 8140 {
de972ffa
AM
8141 struct plt_entry *ent;
8142
e054468f
AM
8143 if (h != NULL)
8144 {
8145 if (h->type == STT_GNU_IFUNC)
8146 ifunc = &h->plt.plist;
8147 }
de972ffa
AM
8148 else if (local_got_offsets != NULL
8149 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 8150 {
de972ffa 8151 struct plt_entry **local_plt;
e054468f 8152
de972ffa
AM
8153 local_plt = (struct plt_entry **) (local_got_offsets
8154 + symtab_hdr->sh_info);
8155 ifunc = local_plt + r_symndx;
e054468f 8156 }
e054468f 8157
de972ffa
AM
8158 ent = NULL;
8159 if (ifunc != NULL
0e1862bb 8160 && (!bfd_link_pic (info)
de972ffa
AM
8161 || is_branch_reloc (r_type)))
8162 {
8163 addend = 0;
0e1862bb 8164 if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
de972ffa
AM
8165 addend = rel->r_addend;
8166 ent = find_plt_ent (ifunc, got2, addend);
8167 }
8168 if (ent != NULL)
8169 {
888a7fc3
AM
8170 if (bfd_link_pic (info)
8171 && ent->sec != got2
8172 && htab->plt_type != PLT_NEW
8173 && (!htab->elf.dynamic_sections_created
8174 || h == NULL
8175 || h->dynindx == -1))
8176 {
8177 /* Uh oh, we are going to create a pic glink stub
8178 for an ifunc (here for h == NULL and later in
8179 finish_dynamic_symbol for h != NULL), and
8180 apparently are using code compiled with
8181 -mbss-plt. The difficulty is that -mbss-plt code
8182 gives no indication via a magic PLTREL24 addend
8183 whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
8184 is pointing into a .got2 section (and how far
8185 into .got2). */
8186 info->callbacks->einfo
695344c0 8187 /* xgettext:c-format */
174d0a74 8188 (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
888a7fc3
AM
8189 input_bfd, input_section, rel->r_offset, sym_name);
8190 }
e054468f
AM
8191 if (h == NULL && (ent->plt.offset & 1) == 0)
8192 {
8193 Elf_Internal_Rela rela;
8194 bfd_byte *loc;
8195
ce558b89
AM
8196 rela.r_offset = (htab->elf.iplt->output_section->vma
8197 + htab->elf.iplt->output_offset
e054468f
AM
8198 + ent->plt.offset);
8199 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8200 rela.r_addend = relocation;
ce558b89
AM
8201 loc = htab->elf.irelplt->contents;
8202 loc += (htab->elf.irelplt->reloc_count++
25f23106 8203 * sizeof (Elf32_External_Rela));
e054468f 8204 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
82e66161 8205 htab->local_ifunc_resolver = 1;
e054468f
AM
8206
8207 ent->plt.offset |= 1;
8208 }
8209 if (h == NULL && (ent->glink_offset & 1) == 0)
8210 {
a7f2871e
AM
8211 unsigned char *p = ((unsigned char *) htab->glink->contents
8212 + ent->glink_offset);
ce558b89 8213 write_glink_stub (ent, htab->elf.iplt, p, info);
e054468f
AM
8214 ent->glink_offset |= 1;
8215 }
8216
8217 unresolved_reloc = FALSE;
8218 if (htab->plt_type == PLT_NEW
8219 || !htab->elf.dynamic_sections_created
c7e17e05
AM
8220 || h == NULL
8221 || h->dynindx == -1)
e054468f
AM
8222 relocation = (htab->glink->output_section->vma
8223 + htab->glink->output_offset
8224 + (ent->glink_offset & ~1));
8225 else
ce558b89
AM
8226 relocation = (htab->elf.splt->output_section->vma
8227 + htab->elf.splt->output_offset
e054468f
AM
8228 + ent->plt.offset);
8229 }
8230 }
8231
7619e7c7 8232 addend = rel->r_addend;
7619e7c7 8233 howto = NULL;
55fd94b0
AM
8234 if (r_type < R_PPC_max)
8235 howto = ppc_elf_howto_table[r_type];
9a23f96e
AM
8236
8237 switch (r_type)
8238 {
8239 default:
8240 break;
8241
8242 case R_PPC_TPREL16_HA:
8243 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8244 {
8245 bfd_byte *p = contents + (rel->r_offset & ~3);
8246 unsigned int insn = bfd_get_32 (input_bfd, p);
8247 if ((insn & ((0x3f << 26) | 0x1f << 16))
8248 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
8249 /* xgettext:c-format */
8250 info->callbacks->minfo
8251 (_("%H: warning: %s unexpected insn %#x.\n"),
8252 input_bfd, input_section, rel->r_offset, howto->name, insn);
8253 else
8254 bfd_put_32 (input_bfd, NOP, p);
8255 }
8256 break;
8257
8258 case R_PPC_TPREL16_LO:
8259 if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
8260 {
8261 bfd_byte *p = contents + (rel->r_offset & ~3);
8262 unsigned int insn = bfd_get_32 (input_bfd, p);
8263 insn &= ~(0x1f << 16);
8264 insn |= 2 << 16;
8265 bfd_put_32 (input_bfd, insn, p);
8266 }
8267 break;
8268 }
8269
8270 tls_type = 0;
7619e7c7 8271 switch (r_type)
252b5132
RH
8272 {
8273 default:
25f53a85 8274 info->callbacks->einfo
695344c0 8275 /* xgettext:c-format */
8de848d8 8276 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 8277 input_bfd, (int) r_type, sym_name);
252b5132
RH
8278
8279 bfd_set_error (bfd_error_bad_value);
b34976b6 8280 ret = FALSE;
c316a17c 8281 goto copy_reloc;
252b5132 8282
7619e7c7
AM
8283 case R_PPC_NONE:
8284 case R_PPC_TLS:
727fc41e
AM
8285 case R_PPC_TLSGD:
8286 case R_PPC_TLSLD:
7619e7c7
AM
8287 case R_PPC_EMB_MRKREF:
8288 case R_PPC_GNU_VTINHERIT:
8289 case R_PPC_GNU_VTENTRY:
c316a17c 8290 goto copy_reloc;
7595d193 8291
7619e7c7
AM
8292 /* GOT16 relocations. Like an ADDR16 using the symbol's
8293 address in the GOT as relocation value instead of the
8294 symbol's value itself. Also, create a GOT entry for the
8295 symbol and put the symbol value there. */
8296 case R_PPC_GOT_TLSGD16:
8297 case R_PPC_GOT_TLSGD16_LO:
8298 case R_PPC_GOT_TLSGD16_HI:
8299 case R_PPC_GOT_TLSGD16_HA:
8300 tls_type = TLS_TLS | TLS_GD;
8301 goto dogot;
8302
8303 case R_PPC_GOT_TLSLD16:
8304 case R_PPC_GOT_TLSLD16_LO:
8305 case R_PPC_GOT_TLSLD16_HI:
8306 case R_PPC_GOT_TLSLD16_HA:
8307 tls_type = TLS_TLS | TLS_LD;
8308 goto dogot;
8309
8310 case R_PPC_GOT_TPREL16:
8311 case R_PPC_GOT_TPREL16_LO:
8312 case R_PPC_GOT_TPREL16_HI:
8313 case R_PPC_GOT_TPREL16_HA:
8314 tls_type = TLS_TLS | TLS_TPREL;
8315 goto dogot;
8316
8317 case R_PPC_GOT_DTPREL16:
8318 case R_PPC_GOT_DTPREL16_LO:
8319 case R_PPC_GOT_DTPREL16_HI:
8320 case R_PPC_GOT_DTPREL16_HA:
8321 tls_type = TLS_TLS | TLS_DTPREL;
8322 goto dogot;
8323
8324 case R_PPC_GOT16:
8325 case R_PPC_GOT16_LO:
8326 case R_PPC_GOT16_HI:
8327 case R_PPC_GOT16_HA:
727fc41e 8328 tls_mask = 0;
7619e7c7
AM
8329 dogot:
8330 {
8331 /* Relocation is to the entry for this symbol in the global
8332 offset table. */
8333 bfd_vma off;
8334 bfd_vma *offp;
8335 unsigned long indx;
8336
ce558b89 8337 if (htab->elf.sgot == NULL)
7619e7c7
AM
8338 abort ();
8339
8340 indx = 0;
8341 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 8342 && (h == NULL
f5385ebf 8343 || !h->def_dynamic))
7619e7c7
AM
8344 offp = &htab->tlsld_got.offset;
8345 else if (h != NULL)
8346 {
f0158f44
AM
8347 if (!htab->elf.dynamic_sections_created
8348 || h->dynindx == -1
8349 || SYMBOL_REFERENCES_LOCAL (info, h)
21d68fcd 8350 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
7619e7c7
AM
8351 /* This is actually a static link, or it is a
8352 -Bsymbolic link and the symbol is defined
8353 locally, or the symbol was forced to be local
8354 because of a version file. */
8355 ;
8356 else
8357 {
8358 indx = h->dynindx;
8359 unresolved_reloc = FALSE;
8360 }
8361 offp = &h->got.offset;
8362 }
8363 else
8364 {
8365 if (local_got_offsets == NULL)
8366 abort ();
8367 offp = &local_got_offsets[r_symndx];
8368 }
8369
8370 /* The offset must always be a multiple of 4. We use the
8371 least significant bit to record whether we have already
8372 processed this entry. */
8373 off = *offp;
8374 if ((off & 1) != 0)
8375 off &= ~1;
8376 else
8377 {
70bccea4
AM
8378 unsigned int tls_m = (tls_mask
8379 & (TLS_LD | TLS_GD | TLS_DTPREL
8380 | TLS_TPREL | TLS_TPRELGD));
8381
8382 if (offp == &htab->tlsld_got.offset)
8383 tls_m = TLS_LD;
8384 else if (h == NULL
f5385ebf 8385 || !h->def_dynamic)
70bccea4
AM
8386 tls_m &= ~TLS_LD;
8387
8388 /* We might have multiple got entries for this sym.
8389 Initialize them all. */
8390 do
7619e7c7 8391 {
70bccea4
AM
8392 int tls_ty = 0;
8393
8394 if ((tls_m & TLS_LD) != 0)
7619e7c7 8395 {
70bccea4
AM
8396 tls_ty = TLS_TLS | TLS_LD;
8397 tls_m &= ~TLS_LD;
8398 }
8399 else if ((tls_m & TLS_GD) != 0)
8400 {
8401 tls_ty = TLS_TLS | TLS_GD;
8402 tls_m &= ~TLS_GD;
8403 }
8404 else if ((tls_m & TLS_DTPREL) != 0)
8405 {
8406 tls_ty = TLS_TLS | TLS_DTPREL;
8407 tls_m &= ~TLS_DTPREL;
8408 }
8409 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
8410 {
8411 tls_ty = TLS_TLS | TLS_TPREL;
8412 tls_m = 0;
7619e7c7 8413 }
7619e7c7 8414
70bccea4 8415 /* Generate relocs for the dynamic linker. */
f0158f44
AM
8416 if (indx != 0
8417 || (bfd_link_pic (info)
8418 && (h == NULL
21d68fcd 8419 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
f0158f44 8420 || offp == &htab->tlsld_got.offset)))
7619e7c7 8421 {
ce558b89 8422 asection *rsec = htab->elf.srelgot;
91d6fa6a 8423 bfd_byte * loc;
91e21fb7 8424
0bed072f 8425 if (ifunc != NULL)
82e66161
AM
8426 {
8427 rsec = htab->elf.irelplt;
8428 if (indx == 0)
8429 htab->local_ifunc_resolver = 1;
8430 else if (is_static_defined (h))
8431 htab->maybe_local_ifunc_resolver = 1;
8432 }
ce558b89
AM
8433 outrel.r_offset = (htab->elf.sgot->output_section->vma
8434 + htab->elf.sgot->output_offset
70bccea4 8435 + off);
e515b051 8436 outrel.r_addend = 0;
70bccea4
AM
8437 if (tls_ty & (TLS_LD | TLS_GD))
8438 {
8439 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
8440 if (tls_ty == (TLS_TLS | TLS_GD))
8441 {
25f23106
AM
8442 loc = rsec->contents;
8443 loc += (rsec->reloc_count++
70bccea4
AM
8444 * sizeof (Elf32_External_Rela));
8445 bfd_elf32_swap_reloca_out (output_bfd,
8446 &outrel, loc);
e515b051 8447 outrel.r_offset += 4;
70bccea4
AM
8448 outrel.r_info
8449 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8450 }
8451 }
8452 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8453 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8454 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8455 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8456 else if (indx != 0)
70bccea4 8457 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8458 else if (ifunc != NULL)
8459 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8460 else
8461 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8462 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8463 {
8464 outrel.r_addend += relocation;
8465 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM
8466 {
8467 if (htab->elf.tls_sec == NULL)
8468 outrel.r_addend = 0;
8469 else
8470 outrel.r_addend -= htab->elf.tls_sec->vma;
8471 }
e515b051 8472 }
25f23106
AM
8473 loc = rsec->contents;
8474 loc += (rsec->reloc_count++
70bccea4
AM
8475 * sizeof (Elf32_External_Rela));
8476 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8477 }
8478
70bccea4
AM
8479 /* Init the .got section contents if we're not
8480 emitting a reloc. */
8481 else
7619e7c7 8482 {
70bccea4
AM
8483 bfd_vma value = relocation;
8484
f0158f44 8485 if (tls_ty != 0)
70bccea4 8486 {
989f9879
AM
8487 if (htab->elf.tls_sec == NULL)
8488 value = 0;
8489 else
8490 {
f0158f44
AM
8491 if (tls_ty & TLS_LD)
8492 value = 0;
8493 else
8494 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
676ee2b5 8495 if (tls_ty & TLS_TPREL)
989f9879
AM
8496 value += DTP_OFFSET - TP_OFFSET;
8497 }
70bccea4 8498
f0158f44 8499 if (tls_ty & (TLS_LD | TLS_GD))
7b609f53 8500 {
95f0d0d2 8501 bfd_put_32 (input_bfd, value,
ce558b89 8502 htab->elf.sgot->contents + off + 4);
676ee2b5 8503 value = 1;
7b609f53 8504 }
70bccea4 8505 }
95f0d0d2 8506 bfd_put_32 (input_bfd, value,
ce558b89 8507 htab->elf.sgot->contents + off);
7619e7c7 8508 }
70bccea4
AM
8509
8510 off += 4;
8511 if (tls_ty & (TLS_LD | TLS_GD))
8512 off += 4;
7619e7c7 8513 }
70bccea4
AM
8514 while (tls_m != 0);
8515
8516 off = *offp;
8517 *offp = off | 1;
7619e7c7
AM
8518 }
8519
8520 if (off >= (bfd_vma) -2)
8521 abort ();
8522
70bccea4
AM
8523 if ((tls_type & TLS_TLS) != 0)
8524 {
8525 if (tls_type != (TLS_TLS | TLS_LD))
8526 {
8527 if ((tls_mask & TLS_LD) != 0
8528 && !(h == NULL
f5385ebf 8529 || !h->def_dynamic))
70bccea4
AM
8530 off += 8;
8531 if (tls_type != (TLS_TLS | TLS_GD))
8532 {
8533 if ((tls_mask & TLS_GD) != 0)
8534 off += 8;
8535 if (tls_type != (TLS_TLS | TLS_DTPREL))
8536 {
8537 if ((tls_mask & TLS_DTPREL) != 0)
8538 off += 4;
8539 }
8540 }
8541 }
8542 }
8543
d3e454b9
AM
8544 /* If here for a picfixup, we're done. */
8545 if (r_type != ELF32_R_TYPE (rel->r_info))
c316a17c 8546 goto copy_reloc;
d3e454b9 8547
ce558b89
AM
8548 relocation = (htab->elf.sgot->output_section->vma
8549 + htab->elf.sgot->output_offset
e87d4038
AM
8550 + off
8551 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8552
8553 /* Addends on got relocations don't make much sense.
8554 x+off@got is actually x@got+off, and since the got is
8555 generated by a hash table traversal, the value in the
8556 got at entry m+n bears little relation to the entry m. */
8557 if (addend != 0)
25f53a85 8558 info->callbacks->einfo
695344c0 8559 /* xgettext:c-format */
174d0a74 8560 (_("%H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8561 input_bfd, input_section, rel->r_offset,
7b609f53 8562 howto->name,
7619e7c7
AM
8563 sym_name);
8564 }
86c95733 8565 break;
7619e7c7 8566
86c95733 8567 /* Relocations that need no special processing. */
7619e7c7 8568 case R_PPC_LOCAL24PC:
252b5132
RH
8569 /* It makes no sense to point a local relocation
8570 at a symbol not in this object. */
7b609f53 8571 if (unresolved_reloc)
252b5132 8572 {
1a72702b
AM
8573 (*info->callbacks->undefined_symbol) (info,
8574 h->root.root.string,
8575 input_bfd,
8576 input_section,
8577 rel->r_offset,
8578 TRUE);
c316a17c 8579 goto copy_reloc;
252b5132 8580 }
888a7fc3
AM
8581 if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
8582 {
8583 /* @local on an ifunc does not really make sense since
8584 the ifunc resolver can take you anywhere. More
8585 seriously, calls to ifuncs must go through a plt call
8586 stub, and for pic the plt call stubs uses r30 to
8587 access the PLT. The problem is that a call that is
8588 local won't have the +32k reloc addend trick marking
8589 -fPIC code, so the linker won't know whether r30 is
8590 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */
695344c0 8591 /* xgettext:c-format */
174d0a74 8592 info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
888a7fc3
AM
8593 input_bfd, input_section, rel->r_offset,
8594 h->root.root.string);
8595 }
252b5132
RH
8596 break;
8597
7619e7c7
AM
8598 case R_PPC_DTPREL16:
8599 case R_PPC_DTPREL16_LO:
8600 case R_PPC_DTPREL16_HI:
8601 case R_PPC_DTPREL16_HA:
989f9879
AM
8602 if (htab->elf.tls_sec != NULL)
8603 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8604 break;
8605
70bccea4
AM
8606 /* Relocations that may need to be propagated if this is a shared
8607 object. */
7619e7c7
AM
8608 case R_PPC_TPREL16:
8609 case R_PPC_TPREL16_LO:
8610 case R_PPC_TPREL16_HI:
8611 case R_PPC_TPREL16_HA:
766bc656
AM
8612 if (h != NULL
8613 && h->root.type == bfd_link_hash_undefweak
8614 && h->dynindx == -1)
8615 {
8616 /* Make this relocation against an undefined weak symbol
8617 resolve to zero. This is really just a tweak, since
8618 code using weak externs ought to check that they are
8619 defined before using them. */
8620 bfd_byte *p = contents + rel->r_offset - d_offset;
95f0d0d2 8621 unsigned int insn = bfd_get_32 (input_bfd, p);
766bc656
AM
8622 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8623 if (insn != 0)
95f0d0d2 8624 bfd_put_32 (input_bfd, insn, p);
766bc656
AM
8625 break;
8626 }
989f9879
AM
8627 if (htab->elf.tls_sec != NULL)
8628 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7 8629 /* The TPREL16 relocs shouldn't really be used in shared
7c8bbca5
AM
8630 libs or with non-local symbols as that will result in
8631 DT_TEXTREL being set, but support them anyway. */
7619e7c7
AM
8632 goto dodyn;
8633
8634 case R_PPC_TPREL32:
989f9879
AM
8635 if (htab->elf.tls_sec != NULL)
8636 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8637 goto dodyn;
8638
8639 case R_PPC_DTPREL32:
989f9879
AM
8640 if (htab->elf.tls_sec != NULL)
8641 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8642 goto dodyn;
8643
e515b051
AM
8644 case R_PPC_DTPMOD32:
8645 relocation = 1;
8646 addend = 0;
8647 goto dodyn;
8648
d7128ce4
AM
8649 case R_PPC_REL16:
8650 case R_PPC_REL16_LO:
8651 case R_PPC_REL16_HI:
8652 case R_PPC_REL16_HA:
a680de9a 8653 case R_PPC_REL16DX_HA:
d7128ce4
AM
8654 break;
8655
7619e7c7 8656 case R_PPC_REL32:
625af618
AM
8657 if (h == NULL || h == htab->elf.hgot)
8658 break;
8659 /* fall through */
8660
8661 case R_PPC_ADDR32:
8662 case R_PPC_ADDR16:
8663 case R_PPC_ADDR16_LO:
8664 case R_PPC_ADDR16_HI:
8665 case R_PPC_ADDR16_HA:
8666 case R_PPC_UADDR32:
8667 case R_PPC_UADDR16:
8668 goto dodyn;
8669
b9c361e0
JL
8670 case R_PPC_VLE_REL8:
8671 case R_PPC_VLE_REL15:
8672 case R_PPC_VLE_REL24:
625af618 8673 case R_PPC_REL24:
7619e7c7
AM
8674 case R_PPC_REL14:
8675 case R_PPC_REL14_BRTAKEN:
8676 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8677 /* If these relocations are not to a named symbol, they can be
8678 handled right here, no need to bother the dynamic linker. */
89200bf8 8679 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8680 || h == htab->elf.hgot)
252b5132 8681 break;
70bccea4 8682 /* fall through */
252b5132 8683
7619e7c7 8684 case R_PPC_ADDR24:
7619e7c7
AM
8685 case R_PPC_ADDR14:
8686 case R_PPC_ADDR14_BRTAKEN:
8687 case R_PPC_ADDR14_BRNTAKEN:
0e1862bb 8688 if (h != NULL && !bfd_link_pic (info))
625af618
AM
8689 break;
8690 /* fall through */
8691
7619e7c7 8692 dodyn:
3348747a
NS
8693 if ((input_section->flags & SEC_ALLOC) == 0
8694 || is_vxworks_tls)
c87b5a93 8695 break;
c87b5a93 8696
0e1862bb 8697 if ((bfd_link_pic (info)
89200bf8
AM
8698 && !(h != NULL
8699 && ((h->root.type == bfd_link_hash_undefined
954b63d4 8700 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
21d68fcd 8701 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
1d483afe 8702 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8703 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe 8704 || (ELIMINATE_COPY_RELOCS
0e1862bb 8705 && !bfd_link_pic (info)
ee05f2fe
AM
8706 && h != NULL
8707 && h->dynindx != -1
f5385ebf 8708 && !h->non_got_ref
d3e454b9
AM
8709 && !h->def_regular
8710 && !(h->protected_def
8711 && ppc_elf_hash_entry (h)->has_addr16_ha
8712 && ppc_elf_hash_entry (h)->has_addr16_lo
8713 && htab->params->pic_fixup > 0)))
252b5132 8714 {
0bb2d96a 8715 int skip;
f95f8542
AM
8716 bfd_byte *loc;
8717 asection *sreloc;
82e66161
AM
8718 long indx = 0;
8719
252b5132 8720#ifdef DEBUG
55fd94b0
AM
8721 fprintf (stderr, "ppc_elf_relocate_section needs to "
8722 "create relocation for %s\n",
70bccea4
AM
8723 (h && h->root.root.string
8724 ? h->root.root.string : "<unknown>"));
252b5132
RH
8725#endif
8726
8727 /* When generating a shared object, these relocations
70bccea4
AM
8728 are copied into the output file to be resolved at run
8729 time. */
0bb2d96a 8730 skip = 0;
5b914448
AM
8731 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8732 input_section,
8733 rel->r_offset);
0bb2d96a
JJ
8734 if (outrel.r_offset == (bfd_vma) -1
8735 || outrel.r_offset == (bfd_vma) -2)
8736 skip = (int) outrel.r_offset;
252b5132
RH
8737 outrel.r_offset += (input_section->output_section->vma
8738 + input_section->output_offset);
8739
8740 if (skip)
8741 memset (&outrel, 0, sizeof outrel);
21d68fcd 8742 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8743 {
82e66161
AM
8744 indx = h->dynindx;
8745 BFD_ASSERT (indx != -1);
7619e7c7 8746 unresolved_reloc = FALSE;
82e66161 8747 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
8748 outrel.r_addend = rel->r_addend;
8749 }
8750 else
8751 {
47388f4c
AM
8752 outrel.r_addend = relocation + rel->r_addend;
8753
25f23106 8754 if (r_type != R_PPC_ADDR32)
252b5132 8755 {
25f23106
AM
8756 if (ifunc != NULL)
8757 {
8758 /* If we get here when building a static
8759 executable, then the libc startup function
8760 responsible for applying indirect function
8761 relocations is going to complain about
8762 the reloc type.
8763 If we get here when building a dynamic
8764 executable, it will be because we have
8765 a text relocation. The dynamic loader
8766 will set the text segment writable and
8767 non-executable to apply text relocations.
8768 So we'll segfault when trying to run the
8769 indirection function to resolve the reloc. */
25f53a85 8770 info->callbacks->einfo
695344c0 8771 /* xgettext:c-format */
174d0a74 8772 (_("%H: relocation %s for indirect "
25f53a85
AM
8773 "function %s unsupported\n"),
8774 input_bfd, input_section, rel->r_offset,
25f23106
AM
8775 howto->name,
8776 sym_name);
8777 ret = FALSE;
8778 }
cf35638d 8779 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8780 ;
252b5132
RH
8781 else if (sec == NULL || sec->owner == NULL)
8782 {
8783 bfd_set_error (bfd_error_bad_value);
89200bf8 8784 ret = FALSE;
252b5132
RH
8785 }
8786 else
8787 {
8788 asection *osec;
8789
47388f4c
AM
8790 /* We are turning this relocation into one
8791 against a section symbol. It would be
8792 proper to subtract the symbol's value,
8793 osec->vma, from the emitted reloc addend,
25f23106
AM
8794 but ld.so expects buggy relocs.
8795 FIXME: Why not always use a zero index? */
252b5132
RH
8796 osec = sec->output_section;
8797 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8798 if (indx == 0)
8799 {
8800 osec = htab->elf.text_index_section;
8801 indx = elf_section_data (osec)->dynindx;
8802 }
8803 BFD_ASSERT (indx != 0);
252b5132 8804#ifdef DEBUG
74541ad4 8805 if (indx == 0)
e460dd0d 8806 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8807 indx, osec->name, osec->flags,
8808 h->root.root.string);
252b5132
RH
8809#endif
8810 }
8811
8812 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8813 }
25f23106
AM
8814 else if (ifunc != NULL)
8815 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8816 else
8817 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8818 }
8819
82e66161
AM
8820 sreloc = elf_section_data (input_section)->sreloc;
8821 if (ifunc)
8822 {
8823 sreloc = htab->elf.irelplt;
8824 if (indx == 0)
8825 htab->local_ifunc_resolver = 1;
8826 else if (is_static_defined (h))
8827 htab->maybe_local_ifunc_resolver = 1;
8828 }
8829 if (sreloc == NULL)
8830 return FALSE;
8831
947216bf
AM
8832 loc = sreloc->contents;
8833 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8834 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8835
2243deae 8836 if (skip == -1)
c316a17c 8837 goto copy_reloc;
2243deae 8838
f0158f44
AM
8839 /* This reloc will be computed at runtime. Clear the memory
8840 so that it contains a predictable value for prelink. */
8841 if (!skip)
2243deae
L
8842 {
8843 relocation = howto->pc_relative ? outrel.r_offset : 0;
8844 addend = 0;
8845 break;
8846 }
252b5132 8847 }
252b5132
RH
8848 break;
8849
32af9f6e
AM
8850 case R_PPC_RELAX_PLT:
8851 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
8852 if (h != NULL)
8853 {
32af9f6e
AM
8854 struct plt_entry *ent;
8855 bfd_vma got2_addend = 0;
8856
8857 if (r_type == R_PPC_RELAX_PLTREL24)
8858 {
0e1862bb 8859 if (bfd_link_pic (info))
32af9f6e
AM
8860 got2_addend = addend;
8861 addend = 0;
8862 }
8863 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
8864 if (htab->plt_type == PLT_NEW)
8865 relocation = (htab->glink->output_section->vma
8866 + htab->glink->output_offset
8867 + ent->glink_offset);
8868 else
ce558b89
AM
8869 relocation = (htab->elf.splt->output_section->vma
8870 + htab->elf.splt->output_offset
de972ffa
AM
8871 + ent->plt.offset);
8872 }
1a0670f3 8873 /* Fall through. */
b4a38de6 8874
32af9f6e 8875 case R_PPC_RELAX:
9abc968f 8876 {
53291d1f
AM
8877 const int *stub;
8878 size_t size;
8879 size_t insn_offset = rel->r_offset;
8880 unsigned int insn;
9abc968f 8881
0e1862bb 8882 if (bfd_link_pic (info))
53291d1f
AM
8883 {
8884 relocation -= (input_section->output_section->vma
8885 + input_section->output_offset
8886 + rel->r_offset - 4);
8887 stub = shared_stub_entry;
95f0d0d2
AM
8888 bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
8889 bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
8890 bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
53291d1f
AM
8891 stub += 3;
8892 size = ARRAY_SIZE (shared_stub_entry) - 3;
8893 }
8894 else
8895 {
8896 stub = stub_entry;
8897 size = ARRAY_SIZE (stub_entry);
8898 }
9abc968f 8899
9abc968f 8900 relocation += addend;
0e1862bb 8901 if (bfd_link_relocatable (info))
53291d1f
AM
8902 relocation = 0;
8903
8904 /* First insn is HA, second is LO. */
8905 insn = *stub++;
8906 insn |= ((relocation + 0x8000) >> 16) & 0xffff;
95f0d0d2 8907 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8908 insn_offset += 4;
8909
8910 insn = *stub++;
8911 insn |= relocation & 0xffff;
95f0d0d2 8912 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8913 insn_offset += 4;
8914 size -= 2;
8915
8916 while (size != 0)
8917 {
8918 insn = *stub++;
8919 --size;
95f0d0d2 8920 bfd_put_32 (input_bfd, insn, contents + insn_offset);
53291d1f
AM
8921 insn_offset += 4;
8922 }
9bc4e62b
NS
8923
8924 /* Rewrite the reloc and convert one of the trailing nop
8925 relocs to describe this relocation. */
8926 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8927 /* The relocs are at the bottom 2 bytes */
c316a17c
AM
8928 wrel->r_offset = rel->r_offset + d_offset;
8929 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8930 wrel->r_addend = rel->r_addend;
8931 memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
8932 wrel++, rel++;
8933 wrel->r_offset += 4;
8934 wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
9abc968f 8935 }
8517fae7 8936 continue;
deaaf2f3 8937
70bccea4 8938 /* Indirect .sdata relocation. */
7619e7c7 8939 case R_PPC_EMB_SDAI16:
c9a2f333 8940 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
8941 if (!is_static_defined (htab->sdata[0].sym))
8942 {
8943 unresolved_reloc = TRUE;
8944 break;
8945 }
7619e7c7 8946 relocation
76750a2f
AM
8947 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8948 h, relocation, rel);
bd6c6e2b 8949 addend = 0;
252b5132
RH
8950 break;
8951
70bccea4 8952 /* Indirect .sdata2 relocation. */
7619e7c7 8953 case R_PPC_EMB_SDA2I16:
c9a2f333 8954 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
8955 if (!is_static_defined (htab->sdata[1].sym))
8956 {
8957 unresolved_reloc = TRUE;
8958 break;
8959 }
7619e7c7 8960 relocation
76750a2f
AM
8961 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8962 h, relocation, rel);
bd6c6e2b 8963 addend = 0;
252b5132
RH
8964 break;
8965
70bccea4
AM
8966 /* Handle the TOC16 reloc. We want to use the offset within the .got
8967 section, not the actual VMA. This is appropriate when generating
8968 an embedded ELF object, for which the .got section acts like the
8969 AIX .toc section. */
7619e7c7 8970 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
8971 if (sec == NULL || sec->output_section == NULL)
8972 {
8973 unresolved_reloc = TRUE;
8974 break;
8975 }
a0f49396
NC
8976 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8977 ".got") == 0
8978 || strcmp (bfd_get_section_name (sec->owner, sec),
8979 ".cgot") == 0);
252b5132 8980
3b4f3a11 8981 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
8982 break;
8983
7619e7c7 8984 case R_PPC_PLTREL24:
f75e0e33
AM
8985 if (h != NULL && ifunc == NULL)
8986 {
cbf95972
AM
8987 struct plt_entry *ent;
8988
8989 ent = find_plt_ent (&h->plt.plist, got2,
8990 bfd_link_pic (info) ? addend : 0);
f75e0e33 8991 if (ent == NULL
ce558b89 8992 || htab->elf.splt == NULL)
f75e0e33
AM
8993 {
8994 /* We didn't make a PLT entry for this symbol. This
8995 happens when statically linking PIC code, or when
8996 using -Bsymbolic. */
8997 }
8998 else
8999 {
9000 /* Relocation is to the entry for this symbol in the
9001 procedure linkage table. */
9002 unresolved_reloc = FALSE;
9003 if (htab->plt_type == PLT_NEW)
9004 relocation = (htab->glink->output_section->vma
9005 + htab->glink->output_offset
9006 + ent->glink_offset);
9007 else
ce558b89
AM
9008 relocation = (htab->elf.splt->output_section->vma
9009 + htab->elf.splt->output_offset
f75e0e33
AM
9010 + ent->plt.offset);
9011 }
9012 }
252b5132 9013
f75e0e33
AM
9014 /* R_PPC_PLTREL24 is rather special. If non-zero, the
9015 addend specifies the GOT pointer offset within .got2.
9016 Don't apply it to the relocation field. */
9017 addend = 0;
8da6118f 9018 break;
252b5132 9019
70bccea4 9020 /* Relocate against _SDA_BASE_. */
7619e7c7 9021 case R_PPC_SDAREL16:
252b5132
RH
9022 {
9023 const char *name;
bd6c6e2b 9024 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 9025
bd6c6e2b
AM
9026 if (sec == NULL
9027 || sec->output_section == NULL
9028 || !is_static_defined (sda))
3b4f3a11
AM
9029 {
9030 unresolved_reloc = TRUE;
9031 break;
9032 }
bd6c6e2b 9033 addend -= SYM_VAL (sda);
3b4f3a11 9034
a0f49396 9035 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9036 if (!(strcmp (name, ".sdata") == 0
9037 || strcmp (name, ".sbss") == 0))
252b5132 9038 {
25f53a85 9039 info->callbacks->einfo
695344c0 9040 /* xgettext:c-format */
8de848d8 9041 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9042 "in the wrong output section (%s)\n"),
d003868e 9043 input_bfd,
55fd94b0
AM
9044 sym_name,
9045 howto->name,
9046 name);
252b5132 9047 }
252b5132
RH
9048 }
9049 break;
9050
70bccea4 9051 /* Relocate against _SDA2_BASE_. */
7619e7c7 9052 case R_PPC_EMB_SDA2REL:
252b5132
RH
9053 {
9054 const char *name;
bd6c6e2b 9055 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 9056
bd6c6e2b
AM
9057 if (sec == NULL
9058 || sec->output_section == NULL
9059 || !is_static_defined (sda))
3b4f3a11
AM
9060 {
9061 unresolved_reloc = TRUE;
9062 break;
9063 }
bd6c6e2b 9064 addend -= SYM_VAL (sda);
3b4f3a11 9065
a0f49396 9066 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9067 if (!(strcmp (name, ".sdata2") == 0
9068 || strcmp (name, ".sbss2") == 0))
252b5132 9069 {
25f53a85 9070 info->callbacks->einfo
695344c0 9071 /* xgettext:c-format */
8de848d8 9072 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9073 "in the wrong output section (%s)\n"),
d003868e 9074 input_bfd,
55fd94b0
AM
9075 sym_name,
9076 howto->name,
9077 name);
252b5132 9078 }
252b5132
RH
9079 }
9080 break;
9081
b9c361e0 9082 case R_PPC_VLE_LO16A:
86c95733 9083 relocation = relocation + addend;
08dc996f
AM
9084 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9085 contents + rel->r_offset, relocation,
9086 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9087 goto copy_reloc;
b9c361e0
JL
9088
9089 case R_PPC_VLE_LO16D:
86c95733 9090 relocation = relocation + addend;
08dc996f
AM
9091 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9092 contents + rel->r_offset, relocation,
9093 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9094 goto copy_reloc;
b9c361e0
JL
9095
9096 case R_PPC_VLE_HI16A:
86c95733 9097 relocation = (relocation + addend) >> 16;
08dc996f
AM
9098 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9099 contents + rel->r_offset, relocation,
9100 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9101 goto copy_reloc;
b9c361e0
JL
9102
9103 case R_PPC_VLE_HI16D:
86c95733 9104 relocation = (relocation + addend) >> 16;
08dc996f
AM
9105 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9106 contents + rel->r_offset, relocation,
9107 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9108 goto copy_reloc;
b9c361e0
JL
9109
9110 case R_PPC_VLE_HA16A:
86c95733 9111 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9112 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9113 contents + rel->r_offset, relocation,
9114 split16a_type, htab->params->vle_reloc_fixup);
c316a17c 9115 goto copy_reloc;
b9c361e0
JL
9116
9117 case R_PPC_VLE_HA16D:
86c95733 9118 relocation = (relocation + addend + 0x8000) >> 16;
08dc996f
AM
9119 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9120 contents + rel->r_offset, relocation,
9121 split16d_type, htab->params->vle_reloc_fixup);
c316a17c 9122 goto copy_reloc;
b9c361e0 9123
70bccea4 9124 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 9125 case R_PPC_EMB_SDA21:
b9c361e0 9126 case R_PPC_VLE_SDA21:
7619e7c7 9127 case R_PPC_EMB_RELSDA:
b9c361e0 9128 case R_PPC_VLE_SDA21_LO:
252b5132
RH
9129 {
9130 const char *name;
9131 int reg;
86c95733 9132 unsigned int insn;
bd6c6e2b 9133 struct elf_link_hash_entry *sda = NULL;
252b5132 9134
3b4f3a11
AM
9135 if (sec == NULL || sec->output_section == NULL)
9136 {
9137 unresolved_reloc = TRUE;
9138 break;
9139 }
9140
a0f49396 9141 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9142 if (strcmp (name, ".sdata") == 0
9143 || strcmp (name, ".sbss") == 0)
252b5132
RH
9144 {
9145 reg = 13;
bd6c6e2b 9146 sda = htab->sdata[0].sym;
252b5132 9147 }
93d1b056
AM
9148 else if (strcmp (name, ".sdata2") == 0
9149 || strcmp (name, ".sbss2") == 0)
252b5132
RH
9150 {
9151 reg = 2;
bd6c6e2b 9152 sda = htab->sdata[1].sym;
252b5132 9153 }
8da6118f
KH
9154 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
9155 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
9156 {
9157 reg = 0;
9158 }
252b5132
RH
9159 else
9160 {
25f53a85 9161 info->callbacks->einfo
695344c0 9162 /* xgettext:c-format */
8de848d8 9163 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 9164 "in the wrong output section (%s)\n"),
d003868e 9165 input_bfd,
55fd94b0
AM
9166 sym_name,
9167 howto->name,
9168 name);
252b5132
RH
9169
9170 bfd_set_error (bfd_error_bad_value);
b34976b6 9171 ret = FALSE;
c316a17c 9172 goto copy_reloc;
252b5132
RH
9173 }
9174
bd6c6e2b
AM
9175 if (sda != NULL)
9176 {
9177 if (!is_static_defined (sda))
9178 {
9179 unresolved_reloc = TRUE;
9180 break;
9181 }
9182 addend -= SYM_VAL (sda);
9183 }
9184
95f0d0d2 9185 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
b9c361e0
JL
9186 if (reg == 0
9187 && (r_type == R_PPC_VLE_SDA21
9188 || r_type == R_PPC_VLE_SDA21_LO))
9189 {
86c95733
AM
9190 relocation = relocation + addend;
9191 addend = 0;
9192
9193 /* Force e_li insn, keeping RT from original insn. */
9194 insn &= 0x1f << 21;
9195 insn |= 28u << 26;
9196
9197 /* We have an li20 field, bits 17..20, 11..15, 21..31. */
9198 /* Top 4 bits of value to 17..20. */
9199 insn |= (relocation & 0xf0000) >> 5;
9200 /* Next 5 bits of the value to 11..15. */
9201 insn |= (relocation & 0xf800) << 5;
9202 /* And the final 11 bits of the value to bits 21 to 31. */
9203 insn |= relocation & 0x7ff;
9204
95f0d0d2 9205 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
c3301df1
AM
9206
9207 if (r_type == R_PPC_VLE_SDA21
9208 && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
9209 goto overflow;
c316a17c 9210 goto copy_reloc;
b9c361e0
JL
9211 }
9212 else if (r_type == R_PPC_EMB_SDA21
9213 || r_type == R_PPC_VLE_SDA21
9214 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a 9215 {
86c95733 9216 /* Fill in register field. */
252b5132 9217 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
252b5132 9218 }
95f0d0d2 9219 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
252b5132
RH
9220 }
9221 break;
9222
b9c361e0
JL
9223 case R_PPC_VLE_SDAREL_LO16A:
9224 case R_PPC_VLE_SDAREL_LO16D:
9225 case R_PPC_VLE_SDAREL_HI16A:
9226 case R_PPC_VLE_SDAREL_HI16D:
9227 case R_PPC_VLE_SDAREL_HA16A:
9228 case R_PPC_VLE_SDAREL_HA16D:
9229 {
9230 bfd_vma value;
9231 const char *name;
b9c361e0
JL
9232 struct elf_link_hash_entry *sda = NULL;
9233
9234 if (sec == NULL || sec->output_section == NULL)
9235 {
9236 unresolved_reloc = TRUE;
9237 break;
9238 }
9239
a0f49396 9240 name = bfd_get_section_name (output_bfd, sec->output_section);
93d1b056
AM
9241 if (strcmp (name, ".sdata") == 0
9242 || strcmp (name, ".sbss") == 0)
5499c7c7 9243 sda = htab->sdata[0].sym;
93d1b056
AM
9244 else if (strcmp (name, ".sdata2") == 0
9245 || strcmp (name, ".sbss2") == 0)
5499c7c7 9246 sda = htab->sdata[1].sym;
b9c361e0
JL
9247 else
9248 {
4eca0228 9249 _bfd_error_handler
695344c0 9250 /* xgettext:c-format */
b9c361e0
JL
9251 (_("%B: the target (%s) of a %s relocation is "
9252 "in the wrong output section (%s)"),
9253 input_bfd,
9254 sym_name,
9255 howto->name,
9256 name);
9257
9258 bfd_set_error (bfd_error_bad_value);
9259 ret = FALSE;
c316a17c 9260 goto copy_reloc;
b9c361e0
JL
9261 }
9262
5499c7c7 9263 if (sda == NULL || !is_static_defined (sda))
b9c361e0 9264 {
5499c7c7
AM
9265 unresolved_reloc = TRUE;
9266 break;
b9c361e0 9267 }
5499c7c7 9268 value = relocation + addend - SYM_VAL (sda);
86c95733
AM
9269
9270 if (r_type == R_PPC_VLE_SDAREL_LO16A)
08dc996f
AM
9271 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9272 contents + rel->r_offset, value,
9273 split16a_type,
9274 htab->params->vle_reloc_fixup);
86c95733 9275 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
08dc996f
AM
9276 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9277 contents + rel->r_offset, value,
9278 split16d_type,
9279 htab->params->vle_reloc_fixup);
86c95733 9280 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
b9c361e0 9281 {
86c95733 9282 value = value >> 16;
08dc996f
AM
9283 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9284 contents + rel->r_offset, value,
9285 split16a_type,
9286 htab->params->vle_reloc_fixup);
b9c361e0 9287 }
86c95733 9288 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
b9c361e0 9289 {
86c95733 9290 value = value >> 16;
08dc996f
AM
9291 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9292 contents + rel->r_offset, value,
9293 split16d_type,
9294 htab->params->vle_reloc_fixup);
b9c361e0 9295 }
86c95733 9296 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
b9c361e0 9297 {
86c95733 9298 value = (value + 0x8000) >> 16;
08dc996f
AM
9299 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9300 contents + rel->r_offset, value,
9301 split16a_type,
9302 htab->params->vle_reloc_fixup);
b9c361e0 9303 }
86c95733 9304 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
b9c361e0 9305 {
86c95733 9306 value = (value + 0x8000) >> 16;
08dc996f
AM
9307 ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
9308 contents + rel->r_offset, value,
9309 split16d_type,
9310 htab->params->vle_reloc_fixup);
b9c361e0
JL
9311 }
9312 }
c316a17c 9313 goto copy_reloc;
b9c361e0 9314
83eef883
AFB
9315 case R_PPC_VLE_ADDR20:
9316 ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
9317 continue;
9318
70bccea4 9319 /* Relocate against the beginning of the section. */
7619e7c7
AM
9320 case R_PPC_SECTOFF:
9321 case R_PPC_SECTOFF_LO:
9322 case R_PPC_SECTOFF_HI:
9323 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
9324 if (sec == NULL || sec->output_section == NULL)
9325 {
9326 unresolved_reloc = TRUE;
9327 break;
9328 }
252b5132 9329 addend -= sec->output_section->vma;
252b5132
RH
9330 break;
9331
70bccea4 9332 /* Negative relocations. */
7619e7c7
AM
9333 case R_PPC_EMB_NADDR32:
9334 case R_PPC_EMB_NADDR16:
9335 case R_PPC_EMB_NADDR16_LO:
9336 case R_PPC_EMB_NADDR16_HI:
9337 case R_PPC_EMB_NADDR16_HA:
8da6118f 9338 addend -= 2 * relocation;
252b5132
RH
9339 break;
9340
7619e7c7
AM
9341 case R_PPC_COPY:
9342 case R_PPC_GLOB_DAT:
9343 case R_PPC_JMP_SLOT:
9344 case R_PPC_RELATIVE:
e054468f 9345 case R_PPC_IRELATIVE:
7619e7c7
AM
9346 case R_PPC_PLT32:
9347 case R_PPC_PLTREL32:
9348 case R_PPC_PLT16_LO:
9349 case R_PPC_PLT16_HI:
9350 case R_PPC_PLT16_HA:
9351 case R_PPC_ADDR30:
9352 case R_PPC_EMB_RELSEC16:
9353 case R_PPC_EMB_RELST_LO:
9354 case R_PPC_EMB_RELST_HI:
9355 case R_PPC_EMB_RELST_HA:
9356 case R_PPC_EMB_BIT_FLD:
25f53a85 9357 info->callbacks->einfo
695344c0 9358 /* xgettext:c-format */
8de848d8 9359 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 9360 input_bfd,
7619e7c7
AM
9361 howto->name,
9362 sym_name);
252b5132
RH
9363
9364 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9365 ret = FALSE;
c316a17c 9366 goto copy_reloc;
7619e7c7 9367 }
252b5132 9368
7619e7c7
AM
9369 /* Do any further special processing. */
9370 switch (r_type)
9371 {
9372 default:
9373 break;
9374
9375 case R_PPC_ADDR16_HA:
d7128ce4 9376 case R_PPC_REL16_HA:
a680de9a 9377 case R_PPC_REL16DX_HA:
7619e7c7
AM
9378 case R_PPC_SECTOFF_HA:
9379 case R_PPC_TPREL16_HA:
9380 case R_PPC_DTPREL16_HA:
7619e7c7
AM
9381 case R_PPC_EMB_NADDR16_HA:
9382 case R_PPC_EMB_RELST_HA:
9383 /* It's just possible that this symbol is a weak symbol
7b609f53 9384 that's not actually defined anywhere. In that case,
7619e7c7
AM
9385 'sec' would be NULL, and we should leave the symbol
9386 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
9387 if (sec == NULL)
9388 break;
1a0670f3 9389 /* Fall through. */
5c5f6e17
AM
9390
9391 case R_PPC_PLT16_HA:
9392 case R_PPC_GOT16_HA:
9393 case R_PPC_GOT_TLSGD16_HA:
9394 case R_PPC_GOT_TLSLD16_HA:
9395 case R_PPC_GOT_TPREL16_HA:
9396 case R_PPC_GOT_DTPREL16_HA:
9397 /* Add 0x10000 if sign bit in 0:15 is set.
9398 Bits 0:15 are not used. */
9399 addend += 0x8000;
7619e7c7 9400 break;
1fe532cf
AM
9401
9402 case R_PPC_ADDR16:
9403 case R_PPC_ADDR16_LO:
9404 case R_PPC_GOT16:
9405 case R_PPC_GOT16_LO:
9406 case R_PPC_SDAREL16:
9407 case R_PPC_SECTOFF:
9408 case R_PPC_SECTOFF_LO:
9409 case R_PPC_DTPREL16:
9410 case R_PPC_DTPREL16_LO:
9411 case R_PPC_TPREL16:
9412 case R_PPC_TPREL16_LO:
9413 case R_PPC_GOT_TLSGD16:
9414 case R_PPC_GOT_TLSGD16_LO:
9415 case R_PPC_GOT_TLSLD16:
9416 case R_PPC_GOT_TLSLD16_LO:
9417 case R_PPC_GOT_DTPREL16:
9418 case R_PPC_GOT_DTPREL16_LO:
9419 case R_PPC_GOT_TPREL16:
9420 case R_PPC_GOT_TPREL16_LO:
9421 {
9422 /* The 32-bit ABI lacks proper relocations to deal with
9423 certain 64-bit instructions. Prevent damage to bits
9424 that make up part of the insn opcode. */
9425 unsigned int insn, mask, lobit;
9426
95f0d0d2 9427 insn = bfd_get_32 (input_bfd,
c316a17c 9428 contents + rel->r_offset - d_offset);
1fe532cf
AM
9429 mask = 0;
9430 if (is_insn_ds_form (insn))
9431 mask = 3;
9432 else if (is_insn_dq_form (insn))
9433 mask = 15;
9434 else
9435 break;
a680de9a
PB
9436 relocation += addend;
9437 addend = insn & mask;
9438 lobit = mask & relocation;
1fe532cf
AM
9439 if (lobit != 0)
9440 {
a680de9a 9441 relocation ^= lobit;
1fe532cf 9442 info->callbacks->einfo
695344c0 9443 /* xgettext:c-format */
174d0a74 9444 (_("%H: error: %s against `%s' not a multiple of %u\n"),
1fe532cf
AM
9445 input_bfd, input_section, rel->r_offset,
9446 howto->name, sym_name, mask + 1);
9447 bfd_set_error (bfd_error_bad_value);
9448 ret = FALSE;
9449 }
1fe532cf
AM
9450 }
9451 break;
252b5132
RH
9452 }
9453
252b5132 9454#ifdef DEBUG
55fd94b0
AM
9455 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
9456 "offset = %ld, addend = %ld\n",
252b5132 9457 howto->name,
8da6118f 9458 (int) r_type,
252b5132
RH
9459 sym_name,
9460 r_symndx,
7619e7c7 9461 (long) rel->r_offset,
8da6118f 9462 (long) addend);
252b5132
RH
9463#endif
9464
7619e7c7
AM
9465 if (unresolved_reloc
9466 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
9467 && h->def_dynamic)
9468 && _bfd_elf_section_offset (output_bfd, info, input_section,
9469 rel->r_offset) != (bfd_vma) -1)
7619e7c7 9470 {
25f53a85 9471 info->callbacks->einfo
695344c0 9472 /* xgettext:c-format */
174d0a74 9473 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 9474 input_bfd, input_section, rel->r_offset,
7b609f53 9475 howto->name,
7619e7c7
AM
9476 sym_name);
9477 ret = FALSE;
9478 }
9479
86c95733
AM
9480 /* 16-bit fields in insns mostly have signed values, but a
9481 few insns have 16-bit unsigned values. Really, we should
9482 have different reloc types. */
9483 if (howto->complain_on_overflow != complain_overflow_dont
9484 && howto->dst_mask == 0xffff
9485 && (input_section->flags & SEC_CODE) != 0)
9486 {
9487 enum complain_overflow complain = complain_overflow_signed;
9488
9489 if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
9490 {
9491 unsigned int insn;
9492
9493 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM
9494 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
9495 complain = complain_overflow_bitfield;
9496 else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
9497 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
9498 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
86c95733
AM
9499 complain = complain_overflow_unsigned;
9500 }
9501 if (howto->complain_on_overflow != complain)
9502 {
9503 alt_howto = *howto;
9504 alt_howto.complain_on_overflow = complain;
9505 howto = &alt_howto;
9506 }
9507 }
9508
a680de9a
PB
9509 if (r_type == R_PPC_REL16DX_HA)
9510 {
9511 /* Split field reloc isn't handled by _bfd_final_link_relocate. */
9512 if (rel->r_offset + 4 > input_section->size)
9513 r = bfd_reloc_outofrange;
9514 else
9515 {
9516 unsigned int insn;
9517
9518 relocation += addend;
9519 relocation -= (rel->r_offset
9520 + input_section->output_offset
9521 + input_section->output_section->vma);
9522 relocation >>= 16;
9523 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
9524 insn &= ~0x1fffc1;
9525 insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
9526 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
9527 r = bfd_reloc_ok;
9528 }
9529 }
9530 else
9531 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
9532 rel->r_offset, relocation, addend);
252b5132 9533
7619e7c7 9534 if (r != bfd_reloc_ok)
252b5132 9535 {
7619e7c7 9536 if (r == bfd_reloc_overflow)
252b5132 9537 {
c3301df1 9538 overflow:
8131c122
AM
9539 /* On code like "if (foo) foo();" don't report overflow
9540 on a branch to zero when foo is undefined. */
9541 if (!warned
9542 && !(h != NULL
9543 && (h->root.type == bfd_link_hash_undefweak
9544 || h->root.type == bfd_link_hash_undefined)
9545 && is_branch_reloc (r_type)))
1a72702b
AM
9546 info->callbacks->reloc_overflow
9547 (info, (h ? &h->root : NULL), sym_name, howto->name,
9548 rel->r_addend, input_bfd, input_section, rel->r_offset);
dc1bc0c9
RH
9549 }
9550 else
9551 {
25f53a85 9552 info->callbacks->einfo
695344c0 9553 /* xgettext:c-format */
174d0a74 9554 (_("%H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9555 input_bfd, input_section, rel->r_offset,
9556 howto->name, sym_name, (int) r);
7619e7c7 9557 ret = FALSE;
252b5132
RH
9558 }
9559 }
c316a17c
AM
9560 copy_reloc:
9561 if (wrel != rel)
9562 *wrel = *rel;
9563 }
9564
9565 if (wrel != rel)
9566 {
9567 Elf_Internal_Shdr *rel_hdr;
9568 size_t deleted = rel - wrel;
9569
9570 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
9571 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9572 if (rel_hdr->sh_size == 0)
9573 {
9574 /* It is too late to remove an empty reloc section. Leave
9575 one NONE reloc.
9576 ??? What is wrong with an empty section??? */
9577 rel_hdr->sh_size = rel_hdr->sh_entsize;
9578 deleted -= 1;
9579 wrel++;
9580 }
9581 relend = wrel;
9582 rel_hdr = _bfd_elf_single_rel_hdr (input_section);
9583 rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
9584 input_section->reloc_count -= deleted;
252b5132
RH
9585 }
9586
252b5132
RH
9587#ifdef DEBUG
9588 fprintf (stderr, "\n");
9589#endif
9590
53291d1f
AM
9591 if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
9592 && input_section->size != input_section->rawsize
9593 && (strcmp (input_section->output_section->name, ".init") == 0
9594 || strcmp (input_section->output_section->name, ".fini") == 0))
9595 {
9596 /* Branch around the trampolines. */
9597 unsigned int insn = B + input_section->size - input_section->rawsize;
9598 bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
9599 }
9600
5446cbdf 9601 if (htab->params->ppc476_workaround
795bc6b3 9602 && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
0e1862bb 9603 && (!bfd_link_relocatable (info)
795bc6b3
AM
9604 || (input_section->output_section->alignment_power
9605 >= htab->params->pagesize_p2)))
5446cbdf 9606 {
5446cbdf 9607 bfd_vma start_addr, end_addr, addr;
795bc6b3 9608 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
5446cbdf 9609
5446cbdf 9610 if (relax_info->workaround_size != 0)
40fd06d1
AM
9611 {
9612 bfd_byte *p;
9613 unsigned int n;
9614 bfd_byte fill[4];
9615
9616 bfd_put_32 (input_bfd, BA, fill);
9617 p = contents + input_section->size - relax_info->workaround_size;
9618 n = relax_info->workaround_size >> 2;
9619 while (n--)
9620 {
9621 memcpy (p, fill, 4);
9622 p += 4;
9623 }
9624 }
5446cbdf
AM
9625
9626 /* The idea is: Replace the last instruction on a page with a
9627 branch to a patch area. Put the insn there followed by a
9628 branch back to the next page. Complicated a little by
9629 needing to handle moved conditional branches, and by not
9630 wanting to touch data-in-text. */
9631
9632 start_addr = (input_section->output_section->vma
9633 + input_section->output_offset);
9634 end_addr = (start_addr + input_section->size
9635 - relax_info->workaround_size);
9636 for (addr = ((start_addr & -pagesize) + pagesize - 4);
9637 addr < end_addr;
9638 addr += pagesize)
9639 {
9640 bfd_vma offset = addr - start_addr;
9641 Elf_Internal_Rela *lo, *hi;
9642 bfd_boolean is_data;
9643 bfd_vma patch_off, patch_addr;
9644 unsigned int insn;
9645
9646 /* Do we have a data reloc at this offset? If so, leave
9647 the word alone. */
9648 is_data = FALSE;
9649 lo = relocs;
668e22e5
AM
9650 hi = relend;
9651 rel = NULL;
5446cbdf
AM
9652 while (lo < hi)
9653 {
9654 rel = lo + (hi - lo) / 2;
9655 if (rel->r_offset < offset)
9656 lo = rel + 1;
668e22e5 9657 else if (rel->r_offset > offset + 3)
5446cbdf
AM
9658 hi = rel;
9659 else
9660 {
9661 switch (ELF32_R_TYPE (rel->r_info))
9662 {
9663 case R_PPC_ADDR32:
9664 case R_PPC_UADDR32:
9665 case R_PPC_REL32:
9666 case R_PPC_ADDR30:
9667 is_data = TRUE;
9668 break;
9669 default:
9670 break;
9671 }
9672 break;
9673 }
9674 }
9675 if (is_data)
9676 continue;
9677
b4ab4364
AM
9678 /* Some instructions can be left alone too. Unconditional
9679 branches, except for bcctr with BO=0x14 (bctr, bctrl),
9680 avoid the icache failure.
9681
9682 The problem occurs due to prefetch across a page boundary
9683 where stale instructions can be fetched from the next
9684 page, and the mechanism for flushing these bad
9685 instructions fails under certain circumstances. The
9686 unconditional branches:
9687 1) Branch: b, bl, ba, bla,
9688 2) Branch Conditional: bc, bca, bcl, bcla,
9689 3) Branch Conditional to Link Register: bclr, bclrl,
9690 where (2) and (3) have BO=0x14 making them unconditional,
9691 prevent the bad prefetch because the prefetch itself is
9692 affected by these instructions. This happens even if the
9693 instruction is not executed.
9694
9695 A bctr example:
9696 .
9697 . lis 9,new_page@ha
9698 . addi 9,9,new_page@l
9699 . mtctr 9
9700 . bctr
9701 . nop
9702 . nop
9703 . new_page:
9704 .
9705 The bctr is not predicted taken due to ctr not being
9706 ready, so prefetch continues on past the bctr into the
9707 new page which might have stale instructions. If they
9708 fail to be flushed, then they will be executed after the
9709 bctr executes. Either of the following modifications
9710 prevent the bad prefetch from happening in the first
9711 place:
9712 .
1b786873
L
9713 . lis 9,new_page@ha lis 9,new_page@ha
9714 . addi 9,9,new_page@l addi 9,9,new_page@l
9715 . mtctr 9 mtctr 9
9716 . bctr bctr
b4ab4364 9717 . nop b somewhere_else
1b786873
L
9718 . b somewhere_else nop
9719 . new_page: new_page:
b4ab4364 9720 . */
5446cbdf 9721 insn = bfd_get_32 (input_bfd, contents + offset);
b4ab4364
AM
9722 if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */
9723 || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/
9724 && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */
5446cbdf 9725 || ((insn & (0x3f << 26)) == (19u << 26)
b4ab4364
AM
9726 && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */
9727 && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */
5446cbdf
AM
9728 continue;
9729
9730 patch_addr = (start_addr + input_section->size
9731 - relax_info->workaround_size);
9732 patch_addr = (patch_addr + 15) & -16;
9733 patch_off = patch_addr - start_addr;
9734 bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
668e22e5
AM
9735
9736 if (rel != NULL
9737 && rel->r_offset >= offset
9738 && rel->r_offset < offset + 4)
9739 {
f8b44781
AM
9740 asection *sreloc;
9741
668e22e5
AM
9742 /* If the insn we are patching had a reloc, adjust the
9743 reloc r_offset so that the reloc applies to the moved
9744 location. This matters for -r and --emit-relocs. */
9745 if (rel + 1 != relend)
9746 {
9747 Elf_Internal_Rela tmp = *rel;
9748
9749 /* Keep the relocs sorted by r_offset. */
9750 memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
9751 relend[-1] = tmp;
9752 }
9753 relend[-1].r_offset += patch_off - offset;
f8b44781
AM
9754
9755 /* Adjust REL16 addends too. */
9756 switch (ELF32_R_TYPE (relend[-1].r_info))
9757 {
9758 case R_PPC_REL16:
9759 case R_PPC_REL16_LO:
9760 case R_PPC_REL16_HI:
9761 case R_PPC_REL16_HA:
9762 relend[-1].r_addend += patch_off - offset;
9763 break;
9764 default:
9765 break;
9766 }
9767
9768 /* If we are building a PIE or shared library with
9769 non-PIC objects, perhaps we had a dynamic reloc too?
9770 If so, the dynamic reloc must move with the insn. */
9771 sreloc = elf_section_data (input_section)->sreloc;
9772 if (sreloc != NULL)
9773 {
1d5c94cb 9774 Elf32_External_Rela *slo, *shi, *srelend;
f8b44781
AM
9775 bfd_vma soffset;
9776
1d5c94cb
AM
9777 slo = (Elf32_External_Rela *) sreloc->contents;
9778 shi = srelend = slo + sreloc->reloc_count;
f8b44781
AM
9779 soffset = (offset + input_section->output_section->vma
9780 + input_section->output_offset);
9781 while (slo < shi)
9782 {
1d5c94cb
AM
9783 Elf32_External_Rela *srel = slo + (shi - slo) / 2;
9784 bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
9785 &outrel);
f8b44781
AM
9786 if (outrel.r_offset < soffset)
9787 slo = srel + 1;
9788 else if (outrel.r_offset > soffset + 3)
9789 shi = srel;
9790 else
9791 {
1d5c94cb 9792 if (srel + 1 != srelend)
f8b44781 9793 {
1d5c94cb
AM
9794 memmove (srel, srel + 1,
9795 (srelend - (srel + 1)) * sizeof (*srel));
9796 srel = srelend - 1;
f8b44781
AM
9797 }
9798 outrel.r_offset += patch_off - offset;
1d5c94cb
AM
9799 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
9800 (bfd_byte *) srel);
f8b44781
AM
9801 break;
9802 }
9803 }
9804 }
668e22e5
AM
9805 }
9806 else
9807 rel = NULL;
9808
5446cbdf
AM
9809 if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
9810 && (insn & 2) == 0 /* relative */)
9811 {
9812 bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
9813
9814 delta += offset - patch_off;
0e1862bb 9815 if (bfd_link_relocatable (info) && rel != NULL)
668e22e5 9816 delta = 0;
0e1862bb 9817 if (!bfd_link_relocatable (info) && rel != NULL)
668e22e5
AM
9818 {
9819 enum elf_ppc_reloc_type r_type;
9820
9821 r_type = ELF32_R_TYPE (relend[-1].r_info);
9822 if (r_type == R_PPC_REL14_BRTAKEN)
9823 insn |= BRANCH_PREDICT_BIT;
9824 else if (r_type == R_PPC_REL14_BRNTAKEN)
9825 insn &= ~BRANCH_PREDICT_BIT;
9826 else
9827 BFD_ASSERT (r_type == R_PPC_REL14);
9828
9829 if ((r_type == R_PPC_REL14_BRTAKEN
9830 || r_type == R_PPC_REL14_BRNTAKEN)
9831 && delta + 0x8000 < 0x10000
9832 && (bfd_signed_vma) delta < 0)
9833 insn ^= BRANCH_PREDICT_BIT;
9834 }
5446cbdf
AM
9835 if (delta + 0x8000 < 0x10000)
9836 {
9837 bfd_put_32 (input_bfd,
9838 (insn & ~0xfffc) | (delta & 0xfffc),
9839 contents + patch_off);
9840 patch_off += 4;
9841 bfd_put_32 (input_bfd,
9842 B | ((offset + 4 - patch_off) & 0x3fffffc),
9843 contents + patch_off);
9844 patch_off += 4;
9845 }
9846 else
9847 {
668e22e5
AM
9848 if (rel != NULL)
9849 {
9850 unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
9851
9852 relend[-1].r_offset += 8;
9853 relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
9854 }
5446cbdf
AM
9855 bfd_put_32 (input_bfd,
9856 (insn & ~0xfffc) | 8,
9857 contents + patch_off);
9858 patch_off += 4;
9859 bfd_put_32 (input_bfd,
9860 B | ((offset + 4 - patch_off) & 0x3fffffc),
9861 contents + patch_off);
9862 patch_off += 4;
9863 bfd_put_32 (input_bfd,
9864 B | ((delta - 8) & 0x3fffffc),
9865 contents + patch_off);
9866 patch_off += 4;
9867 }
9868 }
9869 else
9870 {
9871 bfd_put_32 (input_bfd, insn, contents + patch_off);
9872 patch_off += 4;
9873 bfd_put_32 (input_bfd,
9874 B | ((offset + 4 - patch_off) & 0x3fffffc),
9875 contents + patch_off);
9876 patch_off += 4;
9877 }
9878 BFD_ASSERT (patch_off <= input_section->size);
9879 relax_info->workaround_size = input_section->size - patch_off;
9880 }
9881 }
9882
252b5132
RH
9883 return ret;
9884}
252b5132 9885\f
25dbc73a
AM
9886/* Finish up dynamic symbol handling. We set the contents of various
9887 dynamic sections here. */
c5fccbec 9888
b34976b6 9889static bfd_boolean
25dbc73a
AM
9890ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9891 struct bfd_link_info *info,
9892 struct elf_link_hash_entry *h,
9893 Elf_Internal_Sym *sym)
e1a9cb8e 9894{
25dbc73a 9895 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
9896 struct plt_entry *ent;
9897 bfd_boolean doneone;
e1a9cb8e 9898
25dbc73a
AM
9899#ifdef DEBUG
9900 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9901 h->root.root.string);
9902#endif
e1a9cb8e 9903
25dbc73a
AM
9904 htab = ppc_elf_hash_table (info);
9905 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 9906
a6aa5195
AM
9907 doneone = FALSE;
9908 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9909 if (ent->plt.offset != (bfd_vma) -1)
9910 {
9911 if (!doneone)
9912 {
9913 Elf_Internal_Rela rela;
9914 bfd_byte *loc;
9915 bfd_vma reloc_index;
e1a9cb8e 9916
e054468f 9917 if (htab->plt_type == PLT_NEW
25f23106
AM
9918 || !htab->elf.dynamic_sections_created
9919 || h->dynindx == -1)
9d8504b1
PB
9920 reloc_index = ent->plt.offset / 4;
9921 else
9922 {
9923 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9924 / htab->plt_slot_size);
9925 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 9926 && htab->plt_type == PLT_OLD)
9d8504b1
PB
9927 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9928 }
9929
a6aa5195
AM
9930 /* This symbol has an entry in the procedure linkage table.
9931 Set it up. */
e054468f 9932 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
9933 && htab->elf.dynamic_sections_created
9934 && h->dynindx != -1)
a6aa5195 9935 {
9d8504b1
PB
9936 bfd_vma got_offset;
9937 const bfd_vma *plt_entry;
5b914448 9938
9d8504b1
PB
9939 /* The first three entries in .got.plt are reserved. */
9940 got_offset = (reloc_index + 3) * 4;
9941
9942 /* Use the right PLT. */
0e1862bb 9943 plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
9d8504b1
PB
9944 : ppc_elf_vxworks_plt_entry;
9945
9946 /* Fill in the .plt on VxWorks. */
0e1862bb 9947 if (bfd_link_pic (info))
9d8504b1 9948 {
9d8504b1 9949 bfd_put_32 (output_bfd,
e87d4038 9950 plt_entry[0] | PPC_HA (got_offset),
ce558b89 9951 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 9952 bfd_put_32 (output_bfd,
e87d4038 9953 plt_entry[1] | PPC_LO (got_offset),
ce558b89 9954 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
9955 }
9956 else
9957 {
e87d4038 9958 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
9959
9960 bfd_put_32 (output_bfd,
e87d4038 9961 plt_entry[0] | PPC_HA (got_loc),
ce558b89 9962 htab->elf.splt->contents + ent->plt.offset + 0);
9d8504b1 9963 bfd_put_32 (output_bfd,
e87d4038 9964 plt_entry[1] | PPC_LO (got_loc),
ce558b89 9965 htab->elf.splt->contents + ent->plt.offset + 4);
9d8504b1
PB
9966 }
9967
9968 bfd_put_32 (output_bfd, plt_entry[2],
ce558b89 9969 htab->elf.splt->contents + ent->plt.offset + 8);
9d8504b1 9970 bfd_put_32 (output_bfd, plt_entry[3],
ce558b89 9971 htab->elf.splt->contents + ent->plt.offset + 12);
9d8504b1
PB
9972
9973 /* This instruction is an immediate load. The value loaded is
9974 the byte offset of the R_PPC_JMP_SLOT relocation from the
9975 start of the .rela.plt section. The value is stored in the
9976 low-order 16 bits of the load instruction. */
9977 /* NOTE: It appears that this is now an index rather than a
9978 prescaled offset. */
5b914448 9979 bfd_put_32 (output_bfd,
9d8504b1 9980 plt_entry[4] | reloc_index,
ce558b89 9981 htab->elf.splt->contents + ent->plt.offset + 16);
9d8504b1
PB
9982 /* This instruction is a PC-relative branch whose target is
9983 the start of the PLT section. The address of this branch
9984 instruction is 20 bytes beyond the start of this PLT entry.
9985 The address is encoded in bits 6-29, inclusive. The value
9986 stored is right-shifted by two bits, permitting a 26-bit
9987 offset. */
5b914448
AM
9988 bfd_put_32 (output_bfd,
9989 (plt_entry[5]
9d8504b1 9990 | (-(ent->plt.offset + 20) & 0x03fffffc)),
ce558b89 9991 htab->elf.splt->contents + ent->plt.offset + 20);
9d8504b1 9992 bfd_put_32 (output_bfd, plt_entry[6],
ce558b89 9993 htab->elf.splt->contents + ent->plt.offset + 24);
9d8504b1 9994 bfd_put_32 (output_bfd, plt_entry[7],
ce558b89 9995 htab->elf.splt->contents + ent->plt.offset + 28);
9d8504b1
PB
9996
9997 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 9998 the address immediately after the "bctr" instruction
9d8504b1 9999 in this PLT entry. */
ce558b89
AM
10000 bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
10001 + htab->elf.splt->output_offset
9d8504b1 10002 + ent->plt.offset + 16),
ce558b89 10003 htab->elf.sgotplt->contents + got_offset);
9d8504b1 10004
0e1862bb 10005 if (!bfd_link_pic (info))
9d8504b1
PB
10006 {
10007 /* Fill in a couple of entries in .rela.plt.unloaded. */
10008 loc = htab->srelplt2->contents
10009 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
10010 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
10011 * sizeof (Elf32_External_Rela));
10012
10013 /* Provide the @ha relocation for the first instruction. */
ce558b89
AM
10014 rela.r_offset = (htab->elf.splt->output_section->vma
10015 + htab->elf.splt->output_offset
9d8504b1 10016 + ent->plt.offset + 2);
636ce3f5 10017 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10018 R_PPC_ADDR16_HA);
10019 rela.r_addend = got_offset;
10020 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10021 loc += sizeof (Elf32_External_Rela);
10022
10023 /* Provide the @l relocation for the second instruction. */
ce558b89
AM
10024 rela.r_offset = (htab->elf.splt->output_section->vma
10025 + htab->elf.splt->output_offset
9d8504b1 10026 + ent->plt.offset + 6);
636ce3f5 10027 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
10028 R_PPC_ADDR16_LO);
10029 rela.r_addend = got_offset;
10030 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10031 loc += sizeof (Elf32_External_Rela);
10032
10033 /* Provide a relocation for the GOT entry corresponding to this
10034 PLT slot. Point it at the middle of the .plt entry. */
ce558b89
AM
10035 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10036 + htab->elf.sgotplt->output_offset
9d8504b1 10037 + got_offset);
7325306f 10038 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
10039 R_PPC_ADDR32);
10040 rela.r_addend = ent->plt.offset + 16;
10041 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10042 }
10043
10044 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
10045 In particular, the offset for the relocation is not the
10046 address of the PLT entry for this function, as specified
10047 by the ABI. Instead, the offset is set to the address of
10048 the GOT slot for this function. See EABI 4.4.4.1. */
ce558b89
AM
10049 rela.r_offset = (htab->elf.sgotplt->output_section->vma
10050 + htab->elf.sgotplt->output_offset
9d8504b1
PB
10051 + got_offset);
10052
a6aa5195
AM
10053 }
10054 else
10055 {
ce558b89 10056 asection *splt = htab->elf.splt;
25f23106
AM
10057 if (!htab->elf.dynamic_sections_created
10058 || h->dynindx == -1)
ce558b89 10059 splt = htab->elf.iplt;
e054468f
AM
10060
10061 rela.r_offset = (splt->output_section->vma
10062 + splt->output_offset
9d8504b1 10063 + ent->plt.offset);
e054468f 10064 if (htab->plt_type == PLT_OLD
25f23106
AM
10065 || !htab->elf.dynamic_sections_created
10066 || h->dynindx == -1)
9d8504b1
PB
10067 {
10068 /* We don't need to fill in the .plt. The ppc dynamic
10069 linker will fill it in. */
10070 }
10071 else
10072 {
10073 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
10074 + htab->glink->output_section->vma
10075 + htab->glink->output_offset);
10076 bfd_put_32 (output_bfd, val,
e054468f 10077 splt->contents + ent->plt.offset);
9d8504b1 10078 }
a6aa5195 10079 }
e1a9cb8e 10080
a6aa5195 10081 /* Fill in the entry in the .rela.plt section. */
a6aa5195 10082 rela.r_addend = 0;
e054468f
AM
10083 if (!htab->elf.dynamic_sections_created
10084 || h->dynindx == -1)
10085 {
10086 BFD_ASSERT (h->type == STT_GNU_IFUNC
10087 && h->def_regular
10088 && (h->root.type == bfd_link_hash_defined
10089 || h->root.type == bfd_link_hash_defweak));
10090 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
10091 rela.r_addend = SYM_VAL (h);
10092 }
10093 else
10094 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 10095
25f23106
AM
10096 if (!htab->elf.dynamic_sections_created
10097 || h->dynindx == -1)
82e66161
AM
10098 {
10099 loc = (htab->elf.irelplt->contents
10100 + (htab->elf.irelplt->reloc_count++
10101 * sizeof (Elf32_External_Rela)));
10102 htab->local_ifunc_resolver = 1;
10103 }
e054468f 10104 else
82e66161
AM
10105 {
10106 loc = (htab->elf.srelplt->contents
10107 + reloc_index * sizeof (Elf32_External_Rela));
10108 if (h->type == STT_GNU_IFUNC && is_static_defined (h))
10109 htab->maybe_local_ifunc_resolver = 1;
10110 }
a6aa5195 10111 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 10112
a6aa5195
AM
10113 if (!h->def_regular)
10114 {
0eb4a168
AM
10115 /* Mark the symbol as undefined, rather than as
10116 defined in the .plt section. Leave the value if
10117 there were any relocations where pointer equality
10118 matters (this is a clue for the dynamic linker, to
10119 make function pointer comparisons work between an
10120 application and shared library), otherwise set it
10121 to zero. */
a6aa5195 10122 sym->st_shndx = SHN_UNDEF;
0eb4a168 10123 if (!h->pointer_equality_needed)
a6aa5195 10124 sym->st_value = 0;
0eb4a168
AM
10125 else if (!h->ref_regular_nonweak)
10126 {
625af618
AM
10127 /* This breaks function pointer comparisons, but
10128 that is better than breaking tests for a NULL
0eb4a168 10129 function pointer. */
0eb4a168
AM
10130 sym->st_value = 0;
10131 }
a6aa5195 10132 }
de972ffa 10133 else if (h->type == STT_GNU_IFUNC
0e1862bb 10134 && !bfd_link_pic (info))
de972ffa
AM
10135 {
10136 /* Set the value of ifunc symbols in a non-pie
10137 executable to the glink entry. This is to avoid
10138 text relocations. We can't do this for ifunc in
10139 allocate_dynrelocs, as we do for normal dynamic
10140 function symbols with plt entries, because we need
10141 to keep the original value around for the ifunc
10142 relocation. */
10143 sym->st_shndx = (_bfd_elf_section_from_bfd_section
10144 (output_bfd, htab->glink->output_section));
5b914448
AM
10145 sym->st_value = (ent->glink_offset
10146 + htab->glink->output_offset
de972ffa
AM
10147 + htab->glink->output_section->vma);
10148 }
a6aa5195
AM
10149 doneone = TRUE;
10150 }
e1a9cb8e 10151
e054468f 10152 if (htab->plt_type == PLT_NEW
25f23106
AM
10153 || !htab->elf.dynamic_sections_created
10154 || h->dynindx == -1)
a6aa5195 10155 {
a7f2871e 10156 unsigned char *p;
ce558b89 10157 asection *splt = htab->elf.splt;
25f23106
AM
10158 if (!htab->elf.dynamic_sections_created
10159 || h->dynindx == -1)
ce558b89 10160 splt = htab->elf.iplt;
e1a9cb8e 10161
a7f2871e
AM
10162 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
10163
5446cbdf 10164 if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
a7f2871e
AM
10165 {
10166 bfd_put_32 (output_bfd, LWZ_11_3, p);
10167 p += 4;
10168 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
10169 p += 4;
10170 bfd_put_32 (output_bfd, MR_0_3, p);
10171 p += 4;
10172 bfd_put_32 (output_bfd, CMPWI_11_0, p);
10173 p += 4;
10174 bfd_put_32 (output_bfd, ADD_3_12_2, p);
10175 p += 4;
10176 bfd_put_32 (output_bfd, BEQLR, p);
10177 p += 4;
10178 bfd_put_32 (output_bfd, MR_3_0, p);
10179 p += 4;
10180 bfd_put_32 (output_bfd, NOP, p);
10181 p += 4;
10182 }
10183
10184 write_glink_stub (ent, splt, p, info);
e1a9cb8e 10185
0e1862bb 10186 if (!bfd_link_pic (info))
e054468f
AM
10187 /* We only need one non-PIC glink stub. */
10188 break;
a6aa5195
AM
10189 }
10190 else
10191 break;
10192 }
e1a9cb8e 10193
25dbc73a
AM
10194 if (h->needs_copy)
10195 {
10196 asection *s;
10197 Elf_Internal_Rela rela;
10198 bfd_byte *loc;
e1a9cb8e 10199
25dbc73a 10200 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 10201
25dbc73a
AM
10202#ifdef DEBUG
10203 fprintf (stderr, ", copy");
10204#endif
e1a9cb8e 10205
25dbc73a 10206 BFD_ASSERT (h->dynindx != -1);
86bbe32f 10207
4dc4a9a5 10208 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a 10209 s = htab->relsbss;
afbf7e8e 10210 else if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f 10211 s = htab->elf.sreldynrelro;
25dbc73a 10212 else
9d19e4fd 10213 s = htab->elf.srelbss;
25dbc73a 10214 BFD_ASSERT (s != NULL);
e1a9cb8e 10215
e87d4038 10216 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
10217 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
10218 rela.r_addend = 0;
10219 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
10220 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10221 }
e1a9cb8e 10222
25dbc73a
AM
10223#ifdef DEBUG
10224 fprintf (stderr, "\n");
10225#endif
e1a9cb8e 10226
25dbc73a
AM
10227 return TRUE;
10228}
10229\f
10230static enum elf_reloc_type_class
7e612e98
AM
10231ppc_elf_reloc_type_class (const struct bfd_link_info *info,
10232 const asection *rel_sec,
10233 const Elf_Internal_Rela *rela)
e1a9cb8e 10234{
7e612e98
AM
10235 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
10236
ce558b89 10237 if (rel_sec == htab->elf.irelplt)
7e612e98
AM
10238 return reloc_class_ifunc;
10239
25dbc73a
AM
10240 switch (ELF32_R_TYPE (rela->r_info))
10241 {
10242 case R_PPC_RELATIVE:
10243 return reloc_class_relative;
25dbc73a
AM
10244 case R_PPC_JMP_SLOT:
10245 return reloc_class_plt;
10246 case R_PPC_COPY:
10247 return reloc_class_copy;
10248 default:
10249 return reloc_class_normal;
10250 }
e1a9cb8e 10251}
25dbc73a
AM
10252\f
10253/* Finish up the dynamic sections. */
e1a9cb8e 10254
25dbc73a
AM
10255static bfd_boolean
10256ppc_elf_finish_dynamic_sections (bfd *output_bfd,
10257 struct bfd_link_info *info)
e1a9cb8e 10258{
25dbc73a
AM
10259 asection *sdyn;
10260 struct ppc_elf_link_hash_table *htab;
1fe44d79 10261 bfd_vma got;
e87d4038
AM
10262 bfd *dynobj;
10263 bfd_boolean ret = TRUE;
e1a9cb8e 10264
25dbc73a
AM
10265#ifdef DEBUG
10266 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
10267#endif
6b0817e5 10268
25dbc73a 10269 htab = ppc_elf_hash_table (info);
ce558b89 10270 dynobj = htab->elf.dynobj;
3d4d4302 10271 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
e1a9cb8e 10272
1fe44d79
AM
10273 got = 0;
10274 if (htab->elf.hgot != NULL)
e87d4038 10275 got = SYM_VAL (htab->elf.hgot);
1fe44d79 10276
25dbc73a 10277 if (htab->elf.dynamic_sections_created)
e1a9cb8e 10278 {
25dbc73a 10279 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 10280
ce558b89 10281 BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
86bbe32f 10282
25dbc73a
AM
10283 dyncon = (Elf32_External_Dyn *) sdyn->contents;
10284 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
10285 for (; dyncon < dynconend; dyncon++)
10286 {
10287 Elf_Internal_Dyn dyn;
10288 asection *s;
e1a9cb8e 10289
9d8504b1 10290 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 10291
25dbc73a
AM
10292 switch (dyn.d_tag)
10293 {
10294 case DT_PLTGOT:
9d8504b1 10295 if (htab->is_vxworks)
ce558b89 10296 s = htab->elf.sgotplt;
9d8504b1 10297 else
ce558b89 10298 s = htab->elf.splt;
25dbc73a
AM
10299 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10300 break;
86bbe32f 10301
25dbc73a 10302 case DT_PLTRELSZ:
ce558b89 10303 dyn.d_un.d_val = htab->elf.srelplt->size;
25dbc73a 10304 break;
e1a9cb8e 10305
25dbc73a 10306 case DT_JMPREL:
ce558b89 10307 s = htab->elf.srelplt;
25dbc73a
AM
10308 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
10309 break;
2f89ff8d 10310
1fe44d79
AM
10311 case DT_PPC_GOT:
10312 dyn.d_un.d_ptr = got;
d7128ce4
AM
10313 break;
10314
82e66161
AM
10315 case DT_TEXTREL:
10316 if (htab->local_ifunc_resolver)
10317 info->callbacks->einfo
10318 (_("%X%P: text relocations and GNU indirect "
10319 "functions will result in a segfault at runtime\n"));
10320 else if (htab->maybe_local_ifunc_resolver)
10321 info->callbacks->einfo
10322 (_("%P: warning: text relocations and GNU indirect "
10323 "functions may result in a segfault at runtime\n"));
10324 continue;
10325
25dbc73a 10326 default:
7a2b07ff
NS
10327 if (htab->is_vxworks
10328 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
10329 break;
25dbc73a
AM
10330 continue;
10331 }
4c45e5c9 10332
25dbc73a
AM
10333 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
10334 }
10335 }
4c45e5c9 10336
6528b6eb
AM
10337 if (htab->elf.sgot != NULL
10338 && htab->elf.sgot->output_section != bfd_abs_section_ptr)
25dbc73a 10339 {
ce558b89
AM
10340 if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
10341 || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
e87d4038 10342 {
e79f5955 10343 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 10344
e87d4038
AM
10345 p += htab->elf.hgot->root.u.def.value;
10346 if (htab->plt_type == PLT_OLD)
e79f5955
AM
10347 {
10348 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
10349 so that a function can easily find the address of
10350 _GLOBAL_OFFSET_TABLE_. */
10351 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
10352 < htab->elf.hgot->root.u.def.section->size);
10353 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
10354 }
3b36f7e6 10355
e87d4038 10356 if (sdyn != NULL)
e79f5955
AM
10357 {
10358 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
10359 BFD_ASSERT (htab->elf.hgot->root.u.def.value
10360 < htab->elf.hgot->root.u.def.section->size);
10361 bfd_put_32 (output_bfd, val, p);
10362 }
e87d4038
AM
10363 }
10364 else
10365 {
695344c0 10366 /* xgettext:c-format */
8de848d8 10367 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85 10368 htab->elf.hgot->root.root.string,
ce558b89
AM
10369 (htab->elf.sgotplt != NULL
10370 ? htab->elf.sgotplt->name
10371 : htab->elf.sgot->name));
e87d4038
AM
10372 bfd_set_error (bfd_error_bad_value);
10373 ret = FALSE;
10374 }
25dbc73a 10375
ce558b89 10376 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
25dbc73a
AM
10377 }
10378
9d8504b1 10379 /* Fill in the first entry in the VxWorks procedure linkage table. */
6528b6eb
AM
10380 if (htab->is_vxworks
10381 && htab->elf.splt != NULL
10382 && htab->elf.splt->size != 0
10383 && htab->elf.splt->output_section != bfd_abs_section_ptr)
9d8504b1 10384 {
6528b6eb 10385 asection *splt = htab->elf.splt;
9d8504b1 10386 /* Use the right PLT. */
0e1862bb 10387 const bfd_vma *plt_entry = (bfd_link_pic (info)
5b914448
AM
10388 ? ppc_elf_vxworks_pic_plt0_entry
10389 : ppc_elf_vxworks_plt0_entry);
9d8504b1 10390
0e1862bb 10391 if (!bfd_link_pic (info))
9d8504b1 10392 {
e87d4038 10393 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 10394
e87d4038 10395 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 10396 splt->contents + 0);
e87d4038 10397 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
10398 splt->contents + 4);
10399 }
10400 else
10401 {
10402 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
10403 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
10404 }
10405 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
10406 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
10407 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
10408 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
10409 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
10410 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
10411
0e1862bb 10412 if (! bfd_link_pic (info))
9d8504b1
PB
10413 {
10414 Elf_Internal_Rela rela;
10415 bfd_byte *loc;
10416
10417 loc = htab->srelplt2->contents;
10418
10419 /* Output the @ha relocation for the first instruction. */
ce558b89
AM
10420 rela.r_offset = (htab->elf.splt->output_section->vma
10421 + htab->elf.splt->output_offset
9d8504b1 10422 + 2);
636ce3f5 10423 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10424 rela.r_addend = 0;
10425 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10426 loc += sizeof (Elf32_External_Rela);
5b914448 10427
9d8504b1 10428 /* Output the @l relocation for the second instruction. */
ce558b89
AM
10429 rela.r_offset = (htab->elf.splt->output_section->vma
10430 + htab->elf.splt->output_offset
9d8504b1 10431 + 6);
636ce3f5 10432 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10433 rela.r_addend = 0;
10434 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
10435 loc += sizeof (Elf32_External_Rela);
10436
10437 /* Fix up the remaining relocations. They may have the wrong
10438 symbol index for _G_O_T_ or _P_L_T_ depending on the order
10439 in which symbols were output. */
10440 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
10441 {
10442 Elf_Internal_Rela rel;
10443
10444 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10445 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
10446 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10447 loc += sizeof (Elf32_External_Rela);
10448
10449 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 10450 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
10451 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10452 loc += sizeof (Elf32_External_Rela);
10453
10454 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 10455 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
10456 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
10457 loc += sizeof (Elf32_External_Rela);
10458 }
10459 }
10460 }
10461
e054468f
AM
10462 if (htab->glink != NULL
10463 && htab->glink->contents != NULL
10464 && htab->elf.dynamic_sections_created)
d7128ce4
AM
10465 {
10466 unsigned char *p;
10467 unsigned char *endp;
a6aa5195 10468 bfd_vma res0;
d7128ce4 10469 unsigned int i;
a6aa5195
AM
10470
10471 /*
10472 * PIC glink code is the following:
10473 *
10474 * # ith PLT code stub.
10475 * addis 11,30,(plt+(i-1)*4-got)@ha
10476 * lwz 11,(plt+(i-1)*4-got)@l(11)
10477 * mtctr 11
10478 * bctr
10479 *
10480 * # A table of branches, one for each plt entry.
176a0d42 10481 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
10482 * # addresses, so (r11 - res_0) gives the plt index * 4.
10483 * res_0: b PLTresolve
10484 * res_1: b PLTresolve
10485 * .
10486 * # Some number of entries towards the end can be nops
10487 * res_n_m3: nop
10488 * res_n_m2: nop
10489 * res_n_m1:
10490 *
10491 * PLTresolve:
10492 * addis 11,11,(1f-res_0)@ha
10493 * mflr 0
10494 * bcl 20,31,1f
10495 * 1: addi 11,11,(1b-res_0)@l
10496 * mflr 12
10497 * mtlr 0
10498 * sub 11,11,12 # r11 = index * 4
10499 * addis 12,12,(got+4-1b)@ha
10500 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
10501 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
10502 * mtctr 0
10503 * add 0,11,11
10504 * add 11,0,11 # r11 = index * 12 = reloc offset.
10505 * bctr
10506 */
10507 static const unsigned int pic_plt_resolve[] =
10508 {
10509 ADDIS_11_11,
10510 MFLR_0,
10511 BCL_20_31,
10512 ADDI_11_11,
10513 MFLR_12,
10514 MTLR_0,
10515 SUB_11_11_12,
10516 ADDIS_12_12,
10517 LWZ_0_12,
10518 LWZ_12_12,
10519 MTCTR_0,
10520 ADD_0_11_11,
10521 ADD_11_0_11,
10522 BCTR,
10523 NOP,
10524 NOP
10525 };
10526
176a0d42
AM
10527 /*
10528 * Non-PIC glink code is a little simpler.
10529 *
10530 * # ith PLT code stub.
10531 * lis 11,(plt+(i-1)*4)@ha
10532 * lwz 11,(plt+(i-1)*4)@l(11)
10533 * mtctr 11
10534 * bctr
10535 *
10536 * The branch table is the same, then comes
10537 *
10538 * PLTresolve:
10539 * lis 12,(got+4)@ha
10540 * addis 11,11,(-res_0)@ha
10541 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
10542 * addi 11,11,(-res_0)@l # r11 = index * 4
10543 * mtctr 0
10544 * add 0,11,11
10545 * lwz 12,(got+8)@l(12) # got[2] contains the map address
10546 * add 11,0,11 # r11 = index * 12 = reloc offset.
10547 * bctr
10548 */
d7128ce4
AM
10549 static const unsigned int plt_resolve[] =
10550 {
a6aa5195
AM
10551 LIS_12,
10552 ADDIS_11_11,
10553 LWZ_0_12,
10554 ADDI_11_11,
d7128ce4 10555 MTCTR_0,
7e8aeb9a 10556 ADD_0_11_11,
a6aa5195 10557 LWZ_12_12,
7e8aeb9a 10558 ADD_11_0_11,
d7128ce4
AM
10559 BCTR,
10560 NOP,
10561 NOP,
a6aa5195
AM
10562 NOP,
10563 NOP,
10564 NOP,
10565 NOP,
d7128ce4
AM
10566 NOP
10567 };
10568
a6aa5195
AM
10569 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
10570 abort ();
10571 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
10572 abort ();
10573
a6aa5195 10574 /* Build the branch table, one for each plt entry (less one),
86b9da88 10575 and perhaps some padding. */
a6aa5195
AM
10576 p = htab->glink->contents;
10577 p += htab->glink_pltresolve;
86b9da88
AM
10578 endp = htab->glink->contents;
10579 endp += htab->glink->size - GLINK_PLTRESOLVE;
da3a2088 10580 while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
86b9da88
AM
10581 {
10582 bfd_put_32 (output_bfd, B + endp - p, p);
10583 p += 4;
10584 }
10585 while (p < endp)
10586 {
10587 bfd_put_32 (output_bfd, NOP, p);
10588 p += 4;
10589 }
10590
7e8aeb9a 10591 res0 = (htab->glink_pltresolve
86b9da88
AM
10592 + htab->glink->output_section->vma
10593 + htab->glink->output_offset);
10594
da3a2088
AM
10595 if (htab->params->ppc476_workaround)
10596 {
10597 /* Ensure that a call stub at the end of a page doesn't
10598 result in prefetch over the end of the page into the
10599 glink branch table. */
10600 bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
10601 bfd_vma page_addr;
10602 bfd_vma glink_start = (htab->glink->output_section->vma
10603 + htab->glink->output_offset);
10604
10605 for (page_addr = res0 & -pagesize;
10606 page_addr > glink_start;
10607 page_addr -= pagesize)
10608 {
10609 /* We have a plt call stub that may need fixing. */
10610 bfd_byte *loc;
10611 unsigned int insn;
10612
10613 loc = htab->glink->contents + page_addr - 4 - glink_start;
10614 insn = bfd_get_32 (output_bfd, loc);
10615 if (insn == BCTR)
10616 {
10617 /* By alignment, we know that there must be at least
10618 one other call stub before this one. */
10619 insn = bfd_get_32 (output_bfd, loc - 16);
10620 if (insn == BCTR)
10621 bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
10622 else
10623 bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
10624 }
10625 }
10626 }
10627
86b9da88 10628 /* Last comes the PLTresolve stub. */
0e1862bb 10629 if (bfd_link_pic (info))
7e8aeb9a 10630 {
a6aa5195 10631 bfd_vma bcl;
d7128ce4 10632
a6aa5195 10633 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 10634 {
da3a2088
AM
10635 unsigned int insn = pic_plt_resolve[i];
10636
10637 if (htab->params->ppc476_workaround && insn == NOP)
10638 insn = BA + 0;
10639 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10640 p += 4;
10641 }
a6aa5195
AM
10642 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
10643
10644 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
10645 + htab->glink->output_section->vma
10646 + htab->glink->output_offset);
10647
10648 bfd_put_32 (output_bfd,
10649 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
10650 bfd_put_32 (output_bfd,
10651 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
10652 bfd_put_32 (output_bfd,
10653 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
10654 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
10655 {
10656 bfd_put_32 (output_bfd,
10657 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10658 bfd_put_32 (output_bfd,
10659 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
10660 }
10661 else
10662 {
10663 bfd_put_32 (output_bfd,
10664 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
10665 bfd_put_32 (output_bfd,
10666 LWZ_12_12 + 4, p + 9*4);
10667 }
7e8aeb9a
AM
10668 }
10669 else
d7128ce4 10670 {
a6aa5195 10671 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a 10672 {
da3a2088
AM
10673 unsigned int insn = plt_resolve[i];
10674
10675 if (htab->params->ppc476_workaround && insn == NOP)
10676 insn = BA + 0;
10677 bfd_put_32 (output_bfd, insn, p);
7e8aeb9a
AM
10678 p += 4;
10679 }
a6aa5195
AM
10680 p -= 4 * ARRAY_SIZE (plt_resolve);
10681
10682 bfd_put_32 (output_bfd,
10683 LIS_12 + PPC_HA (got + 4), p + 0*4);
10684 bfd_put_32 (output_bfd,
10685 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
10686 bfd_put_32 (output_bfd,
10687 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
10688 if (PPC_HA (got + 4) == PPC_HA (got + 8))
10689 {
10690 bfd_put_32 (output_bfd,
10691 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
10692 bfd_put_32 (output_bfd,
10693 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
10694 }
10695 else
10696 {
10697 bfd_put_32 (output_bfd,
10698 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
10699 bfd_put_32 (output_bfd,
10700 LWZ_12_12 + 4, p + 6*4);
10701 }
d7128ce4 10702 }
d7128ce4
AM
10703 }
10704
6177242a
AM
10705 if (htab->glink_eh_frame != NULL
10706 && htab->glink_eh_frame->contents != NULL)
10707 {
10708 unsigned char *p = htab->glink_eh_frame->contents;
10709 bfd_vma val;
10710
6177242a
AM
10711 p += sizeof (glink_eh_frame_cie);
10712 /* FDE length. */
6177242a
AM
10713 p += 4;
10714 /* CIE pointer. */
6177242a
AM
10715 p += 4;
10716 /* Offset to .glink. */
10717 val = (htab->glink->output_section->vma
10718 + htab->glink->output_offset);
10719 val -= (htab->glink_eh_frame->output_section->vma
10720 + htab->glink_eh_frame->output_offset);
10721 val -= p - htab->glink_eh_frame->contents;
10722 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 10723
dbaa2011 10724 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
10725 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
10726 htab->glink_eh_frame,
10727 htab->glink_eh_frame->contents))
10728 return FALSE;
10729 }
10730
e87d4038 10731 return ret;
25dbc73a 10732}
e1a9cb8e 10733\f
6d00b590 10734#define TARGET_LITTLE_SYM powerpc_elf32_le_vec
252b5132 10735#define TARGET_LITTLE_NAME "elf32-powerpcle"
6d00b590 10736#define TARGET_BIG_SYM powerpc_elf32_vec
252b5132
RH
10737#define TARGET_BIG_NAME "elf32-powerpc"
10738#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 10739#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 10740#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
10741#ifdef __QNXTARGET__
10742#define ELF_MAXPAGESIZE 0x1000
04c6a44c 10743#define ELF_COMMONPAGESIZE 0x1000
d0facd1b 10744#else
252b5132 10745#define ELF_MAXPAGESIZE 0x10000
04c6a44c 10746#define ELF_COMMONPAGESIZE 0x10000
d0facd1b 10747#endif
b1342370 10748#define ELF_MINPAGESIZE 0x1000
252b5132
RH
10749#define elf_info_to_howto ppc_elf_info_to_howto
10750
10751#ifdef EM_CYGNUS_POWERPC
10752#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
10753#endif
10754
10755#ifdef EM_PPC_OLD
10756#define ELF_MACHINE_ALT2 EM_PPC_OLD
10757#endif
10758
10759#define elf_backend_plt_not_loaded 1
5474d94f 10760#define elf_backend_want_dynrelro 1
252b5132 10761#define elf_backend_can_gc_sections 1
51b64d56 10762#define elf_backend_can_refcount 1
b491616a 10763#define elf_backend_rela_normal 1
53291d1f 10764#define elf_backend_caches_rawsize 1
252b5132 10765
43c40ab2 10766#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 10767#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 10768#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 10769#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 10770#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 10771#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 10772#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 10773#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 10774
feee612b 10775#define elf_backend_object_p ppc_elf_object_p
252b5132 10776#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
252b5132
RH
10777#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
10778#define elf_backend_relocate_section ppc_elf_relocate_section
10779#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
10780#define elf_backend_check_relocs ppc_elf_check_relocs
c0e331c7 10781#define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
7fce784e 10782#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
10783#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
10784#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
10785#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 10786#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
10787#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
10788#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
10789#define elf_backend_fake_sections ppc_elf_fake_sections
10790#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
954b63d4 10791#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
10792#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
10793#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 10794#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 10795#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
10796#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
10797#define elf_backend_final_write_processing ppc_elf_final_write_processing
10798#define elf_backend_write_section ppc_elf_write_section
551b43fd 10799#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 10800#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 10801#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 10802#define elf_backend_init_index_section _bfd_elf_init_1_index_section
b9c361e0 10803#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
252b5132
RH
10804
10805#include "elf32-target.h"
9d8504b1 10806
7b8e7dad
AM
10807/* FreeBSD Target */
10808
10809#undef TARGET_LITTLE_SYM
10810#undef TARGET_LITTLE_NAME
10811
10812#undef TARGET_BIG_SYM
6d00b590 10813#define TARGET_BIG_SYM powerpc_elf32_fbsd_vec
7b8e7dad
AM
10814#undef TARGET_BIG_NAME
10815#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
10816
10817#undef ELF_OSABI
10818#define ELF_OSABI ELFOSABI_FREEBSD
10819
10820#undef elf32_bed
10821#define elf32_bed elf32_powerpc_fbsd_bed
10822
10823#include "elf32-target.h"
10824
9d8504b1
PB
10825/* VxWorks Target */
10826
10827#undef TARGET_LITTLE_SYM
10828#undef TARGET_LITTLE_NAME
10829
10830#undef TARGET_BIG_SYM
6d00b590 10831#define TARGET_BIG_SYM powerpc_elf32_vxworks_vec
9d8504b1
PB
10832#undef TARGET_BIG_NAME
10833#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
10834
7b8e7dad
AM
10835#undef ELF_OSABI
10836
d5e3d971
PB
10837/* VxWorks uses the elf default section flags for .plt. */
10838static const struct bfd_elf_special_section *
4aef7643 10839ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
9d8504b1 10840{
d5e3d971
PB
10841 if (sec->name == NULL)
10842 return NULL;
10843
10844 if (strcmp (sec->name, ".plt") == 0)
10845 return _bfd_elf_get_sec_type_attr (abfd, sec);
10846
10847 return ppc_elf_get_sec_type_attr (abfd, sec);
10848}
9d8504b1
PB
10849
10850/* Like ppc_elf_link_hash_table_create, but overrides
10851 appropriately for VxWorks. */
10852static struct bfd_link_hash_table *
10853ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
10854{
10855 struct bfd_link_hash_table *ret;
10856
10857 ret = ppc_elf_link_hash_table_create (abfd);
10858 if (ret)
10859 {
10860 struct ppc_elf_link_hash_table *htab
954b63d4 10861 = (struct ppc_elf_link_hash_table *)ret;
9d8504b1 10862 htab->is_vxworks = 1;
4a3dc543 10863 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
10864 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
10865 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
10866 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
10867 }
10868 return ret;
10869}
10870
10871/* Tweak magic VxWorks symbols as they are loaded. */
10872static bfd_boolean
10873ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
10874 struct bfd_link_info *info,
10875 Elf_Internal_Sym *sym,
4aef7643
AM
10876 const char **namep,
10877 flagword *flagsp,
9d8504b1
PB
10878 asection **secp,
10879 bfd_vma *valp)
10880{
4aef7643
AM
10881 if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
10882 valp))
9d8504b1
PB
10883 return FALSE;
10884
4aef7643 10885 return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
9d8504b1
PB
10886}
10887
9d8504b1
PB
10888static void
10889ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
10890{
4aef7643
AM
10891 ppc_elf_final_write_processing (abfd, linker);
10892 elf_vxworks_final_write_processing (abfd, linker);
9d8504b1
PB
10893}
10894
10895/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
10896 define it. */
10897#undef elf_backend_want_plt_sym
10898#define elf_backend_want_plt_sym 1
10899#undef elf_backend_want_got_plt
10900#define elf_backend_want_got_plt 1
10901#undef elf_backend_got_symbol_offset
10902#define elf_backend_got_symbol_offset 0
10903#undef elf_backend_plt_not_loaded
10904#define elf_backend_plt_not_loaded 0
10905#undef elf_backend_plt_readonly
10906#define elf_backend_plt_readonly 1
10907#undef elf_backend_got_header_size
10908#define elf_backend_got_header_size 12
64f52338
AM
10909#undef elf_backend_dtrel_excludes_plt
10910#define elf_backend_dtrel_excludes_plt 1
9d8504b1 10911
468392fb
AM
10912#undef bfd_elf32_get_synthetic_symtab
10913
9d8504b1
PB
10914#undef bfd_elf32_bfd_link_hash_table_create
10915#define bfd_elf32_bfd_link_hash_table_create \
10916 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
10917#undef elf_backend_add_symbol_hook
10918#define elf_backend_add_symbol_hook \
10919 ppc_elf_vxworks_add_symbol_hook
10920#undef elf_backend_link_output_symbol_hook
10921#define elf_backend_link_output_symbol_hook \
9c72ff84 10922 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
10923#undef elf_backend_final_write_processing
10924#define elf_backend_final_write_processing \
10925 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
10926#undef elf_backend_get_sec_type_attr
10927#define elf_backend_get_sec_type_attr \
10928 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
10929#undef elf_backend_emit_relocs
10930#define elf_backend_emit_relocs \
10931 elf_vxworks_emit_relocs
10932
10933#undef elf32_bed
10934#define elf32_bed ppc_elf_vxworks_bed
e054468f 10935#undef elf_backend_post_process_headers
9d8504b1
PB
10936
10937#include "elf32-target.h"
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