* configure.ac: Put old value of $LIBS after -lbfd -liberty $intl
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
051d5130 2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
0ffa91dd 3 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
252b5132
RH
4 Written by Ian Lance Taylor, Cygnus Support.
5
ae9a127f 6 This file is part of BFD, the Binary File Descriptor library.
252b5132 7
ae9a127f
NC
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
cd123cb7 10 the Free Software Foundation; either version 3 of the License, or
ae9a127f 11 (at your option) any later version.
252b5132 12
ae9a127f
NC
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
252b5132 17
ae9a127f 18 You should have received a copy of the GNU General Public License
fc0bffd6 19 along with this program; if not, write to the
3e110533 20 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
53e09e0a 21 Boston, MA 02110-1301, USA. */
252b5132 22
cd123cb7 23
252b5132
RH
24/* This file is based on a preliminary PowerPC ELF ABI. The
25 information may not match the final PowerPC ELF ABI. It includes
26 suggestions from the in-progress Embedded PowerPC ABI, and that
27 information may also not match. */
28
3db64b00 29#include "sysdep.h"
183e98be 30#include <stdarg.h>
252b5132 31#include "bfd.h"
252b5132
RH
32#include "bfdlink.h"
33#include "libbfd.h"
34#include "elf-bfd.h"
35#include "elf/ppc.h"
7619e7c7 36#include "elf32-ppc.h"
9d8504b1 37#include "elf-vxworks.h"
252b5132 38
f0fe0e16 39/* RELA relocations are used here. */
252b5132 40
252b5132 41static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 43static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 44 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 45
70bccea4
AM
46/* Branch prediction bit for branch taken relocs. */
47#define BRANCH_PREDICT_BIT 0x200000
48/* Mask to set RA in memory instructions. */
49#define RA_REGISTER_MASK 0x001f0000
50/* Value to shift register by to insert RA. */
51#define RA_REGISTER_SHIFT 16
252b5132
RH
52
53/* The name of the dynamic interpreter. This is put in the .interp
54 section. */
252b5132
RH
55#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
56
d7128ce4 57/* For old-style PLT. */
252b5132
RH
58/* The number of single-slot PLT entries (the rest use two slots). */
59#define PLT_NUM_SINGLE_ENTRIES 8192
60
d7128ce4 61/* For new-style .glink and .plt. */
a6aa5195 62#define GLINK_PLTRESOLVE 16*4
d7128ce4
AM
63#define GLINK_ENTRY_SIZE 4*4
64
9d8504b1
PB
65/* VxWorks uses its own plt layout, filled in by the static linker. */
66
67/* The standard VxWorks PLT entry. */
68#define VXWORKS_PLT_ENTRY_SIZE 32
69static const bfd_vma ppc_elf_vxworks_plt_entry
70 [VXWORKS_PLT_ENTRY_SIZE / 4] =
71 {
72 0x3d800000, /* lis r12,0 */
73 0x818c0000, /* lwz r12,0(r12) */
74 0x7d8903a6, /* mtctr r12 */
75 0x4e800420, /* bctr */
76 0x39600000, /* li r11,0 */
77 0x48000000, /* b 14 <.PLT0resolve+0x4> */
78 0x60000000, /* nop */
79 0x60000000, /* nop */
80 };
81static const bfd_vma ppc_elf_vxworks_pic_plt_entry
82 [VXWORKS_PLT_ENTRY_SIZE / 4] =
83 {
84 0x3d9e0000, /* addis r12,r30,0 */
85 0x818c0000, /* lwz r12,0(r12) */
86 0x7d8903a6, /* mtctr r12 */
87 0x4e800420, /* bctr */
88 0x39600000, /* li r11,0 */
89 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
90 0x60000000, /* nop */
91 0x60000000, /* nop */
92 };
93
94/* The initial VxWorks PLT entry. */
95#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
96static const bfd_vma ppc_elf_vxworks_plt0_entry
97 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
98 {
99 0x3d800000, /* lis r12,0 */
100 0x398c0000, /* addi r12,r12,0 */
101 0x800c0008, /* lwz r0,8(r12) */
102 0x7c0903a6, /* mtctr r0 */
103 0x818c0004, /* lwz r12,4(r12) */
104 0x4e800420, /* bctr */
105 0x60000000, /* nop */
106 0x60000000, /* nop */
107 };
108static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
109 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
110 {
111 0x819e0008, /* lwz r12,8(r30) */
112 0x7d8903a6, /* mtctr r12 */
113 0x819e0004, /* lwz r12,4(r30) */
114 0x4e800420, /* bctr */
115 0x60000000, /* nop */
116 0x60000000, /* nop */
117 0x60000000, /* nop */
118 0x60000000, /* nop */
119 };
120
121/* For executables, we have some additional relocations in
122 .rela.plt.unloaded, for the kernel loader. */
123
124/* The number of non-JMP_SLOT relocations per PLT0 slot. */
125#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
126/* The number of relocations in the PLTResolve slot. */
127#define VXWORKS_PLTRESOLVE_RELOCS 2
128/* The number of relocations in the PLTResolve slot when when creating
129 a shared library. */
130#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
131
d7128ce4 132/* Some instructions. */
d7128ce4 133#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
134#define ADDIS_11_30 0x3d7e0000
135#define ADDIS_12_12 0x3d8c0000
d7128ce4 136#define ADDI_11_11 0x396b0000
d7128ce4
AM
137#define ADD_0_11_11 0x7c0b5a14
138#define ADD_11_0_11 0x7d605a14
a6aa5195
AM
139#define B 0x48000000
140#define BCL_20_31 0x429f0005
d7128ce4 141#define BCTR 0x4e800420
7e8aeb9a
AM
142#define LIS_11 0x3d600000
143#define LIS_12 0x3d800000
a6aa5195
AM
144#define LWZU_0_12 0x840c0000
145#define LWZ_0_12 0x800c0000
146#define LWZ_11_11 0x816b0000
147#define LWZ_11_30 0x817e0000
148#define LWZ_12_12 0x818c0000
149#define MFLR_0 0x7c0802a6
150#define MFLR_12 0x7d8802a6
151#define MTCTR_0 0x7c0903a6
152#define MTCTR_11 0x7d6903a6
153#define MTLR_0 0x7c0803a6
154#define NOP 0x60000000
155#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
156
157/* Offset of tp and dtp pointers from start of TLS block. */
158#define TP_OFFSET 0x7000
159#define DTP_OFFSET 0x8000
7fce784e 160\f
e47cd125 161static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 162
8da6118f 163static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
164 /* This reloc does nothing. */
165 HOWTO (R_PPC_NONE, /* type */
166 0, /* rightshift */
167 2, /* size (0 = byte, 1 = short, 2 = long) */
168 32, /* bitsize */
b34976b6 169 FALSE, /* pc_relative */
252b5132
RH
170 0, /* bitpos */
171 complain_overflow_bitfield, /* complain_on_overflow */
172 bfd_elf_generic_reloc, /* special_function */
173 "R_PPC_NONE", /* name */
b34976b6 174 FALSE, /* partial_inplace */
252b5132
RH
175 0, /* src_mask */
176 0, /* dst_mask */
b34976b6 177 FALSE), /* pcrel_offset */
252b5132
RH
178
179 /* A standard 32 bit relocation. */
180 HOWTO (R_PPC_ADDR32, /* type */
181 0, /* rightshift */
182 2, /* size (0 = byte, 1 = short, 2 = long) */
183 32, /* bitsize */
b34976b6 184 FALSE, /* pc_relative */
252b5132
RH
185 0, /* bitpos */
186 complain_overflow_bitfield, /* complain_on_overflow */
187 bfd_elf_generic_reloc, /* special_function */
188 "R_PPC_ADDR32", /* name */
b34976b6 189 FALSE, /* partial_inplace */
252b5132
RH
190 0, /* src_mask */
191 0xffffffff, /* dst_mask */
b34976b6 192 FALSE), /* pcrel_offset */
252b5132
RH
193
194 /* An absolute 26 bit branch; the lower two bits must be zero.
195 FIXME: we don't check that, we just clear them. */
196 HOWTO (R_PPC_ADDR24, /* type */
197 0, /* rightshift */
198 2, /* size (0 = byte, 1 = short, 2 = long) */
199 26, /* bitsize */
b34976b6 200 FALSE, /* pc_relative */
252b5132
RH
201 0, /* bitpos */
202 complain_overflow_bitfield, /* complain_on_overflow */
203 bfd_elf_generic_reloc, /* special_function */
204 "R_PPC_ADDR24", /* name */
b34976b6 205 FALSE, /* partial_inplace */
252b5132
RH
206 0, /* src_mask */
207 0x3fffffc, /* dst_mask */
b34976b6 208 FALSE), /* pcrel_offset */
252b5132
RH
209
210 /* A standard 16 bit relocation. */
211 HOWTO (R_PPC_ADDR16, /* type */
212 0, /* rightshift */
213 1, /* size (0 = byte, 1 = short, 2 = long) */
214 16, /* bitsize */
b34976b6 215 FALSE, /* pc_relative */
252b5132
RH
216 0, /* bitpos */
217 complain_overflow_bitfield, /* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_PPC_ADDR16", /* name */
b34976b6 220 FALSE, /* partial_inplace */
252b5132
RH
221 0, /* src_mask */
222 0xffff, /* dst_mask */
b34976b6 223 FALSE), /* pcrel_offset */
252b5132
RH
224
225 /* A 16 bit relocation without overflow. */
226 HOWTO (R_PPC_ADDR16_LO, /* type */
227 0, /* rightshift */
228 1, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
b34976b6 230 FALSE, /* pc_relative */
252b5132
RH
231 0, /* bitpos */
232 complain_overflow_dont,/* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_PPC_ADDR16_LO", /* name */
b34976b6 235 FALSE, /* partial_inplace */
252b5132
RH
236 0, /* src_mask */
237 0xffff, /* dst_mask */
b34976b6 238 FALSE), /* pcrel_offset */
252b5132
RH
239
240 /* The high order 16 bits of an address. */
241 HOWTO (R_PPC_ADDR16_HI, /* type */
242 16, /* rightshift */
243 1, /* size (0 = byte, 1 = short, 2 = long) */
244 16, /* bitsize */
b34976b6 245 FALSE, /* pc_relative */
252b5132
RH
246 0, /* bitpos */
247 complain_overflow_dont, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_PPC_ADDR16_HI", /* name */
b34976b6 250 FALSE, /* partial_inplace */
252b5132
RH
251 0, /* src_mask */
252 0xffff, /* dst_mask */
b34976b6 253 FALSE), /* pcrel_offset */
252b5132
RH
254
255 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 256 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
257 HOWTO (R_PPC_ADDR16_HA, /* type */
258 16, /* rightshift */
259 1, /* size (0 = byte, 1 = short, 2 = long) */
260 16, /* bitsize */
b34976b6 261 FALSE, /* pc_relative */
252b5132
RH
262 0, /* bitpos */
263 complain_overflow_dont, /* complain_on_overflow */
264 ppc_elf_addr16_ha_reloc, /* special_function */
265 "R_PPC_ADDR16_HA", /* name */
b34976b6 266 FALSE, /* partial_inplace */
252b5132
RH
267 0, /* src_mask */
268 0xffff, /* dst_mask */
b34976b6 269 FALSE), /* pcrel_offset */
252b5132
RH
270
271 /* An absolute 16 bit branch; the lower two bits must be zero.
272 FIXME: we don't check that, we just clear them. */
273 HOWTO (R_PPC_ADDR14, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
b34976b6 277 FALSE, /* pc_relative */
252b5132
RH
278 0, /* bitpos */
279 complain_overflow_bitfield, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_PPC_ADDR14", /* name */
b34976b6 282 FALSE, /* partial_inplace */
252b5132
RH
283 0, /* src_mask */
284 0xfffc, /* dst_mask */
b34976b6 285 FALSE), /* pcrel_offset */
252b5132
RH
286
287 /* An absolute 16 bit branch, for which bit 10 should be set to
288 indicate that the branch is expected to be taken. The lower two
8da6118f 289 bits must be zero. */
252b5132
RH
290 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 16, /* bitsize */
b34976b6 294 FALSE, /* pc_relative */
252b5132
RH
295 0, /* bitpos */
296 complain_overflow_bitfield, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 299 FALSE, /* partial_inplace */
252b5132
RH
300 0, /* src_mask */
301 0xfffc, /* dst_mask */
b34976b6 302 FALSE), /* pcrel_offset */
252b5132
RH
303
304 /* An absolute 16 bit branch, for which bit 10 should be set to
305 indicate that the branch is not expected to be taken. The lower
306 two bits must be zero. */
307 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 16, /* bitsize */
b34976b6 311 FALSE, /* pc_relative */
252b5132
RH
312 0, /* bitpos */
313 complain_overflow_bitfield, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 316 FALSE, /* partial_inplace */
252b5132
RH
317 0, /* src_mask */
318 0xfffc, /* dst_mask */
b34976b6 319 FALSE), /* pcrel_offset */
252b5132 320
8da6118f 321 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
322 HOWTO (R_PPC_REL24, /* type */
323 0, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 26, /* bitsize */
b34976b6 326 TRUE, /* pc_relative */
252b5132
RH
327 0, /* bitpos */
328 complain_overflow_signed, /* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_PPC_REL24", /* name */
b34976b6 331 FALSE, /* partial_inplace */
252b5132
RH
332 0, /* src_mask */
333 0x3fffffc, /* dst_mask */
b34976b6 334 TRUE), /* pcrel_offset */
252b5132 335
8da6118f 336 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
337 HOWTO (R_PPC_REL14, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 16, /* bitsize */
b34976b6 341 TRUE, /* pc_relative */
252b5132
RH
342 0, /* bitpos */
343 complain_overflow_signed, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_PPC_REL14", /* name */
b34976b6 346 FALSE, /* partial_inplace */
252b5132
RH
347 0, /* src_mask */
348 0xfffc, /* dst_mask */
b34976b6 349 TRUE), /* pcrel_offset */
252b5132 350
8da6118f 351 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
352 the branch is expected to be taken. The lower two bits must be
353 zero. */
354 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 16, /* bitsize */
b34976b6 358 TRUE, /* pc_relative */
252b5132
RH
359 0, /* bitpos */
360 complain_overflow_signed, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 363 FALSE, /* partial_inplace */
252b5132
RH
364 0, /* src_mask */
365 0xfffc, /* dst_mask */
b34976b6 366 TRUE), /* pcrel_offset */
252b5132 367
8da6118f 368 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
369 the branch is not expected to be taken. The lower two bits must
370 be zero. */
371 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
372 0, /* rightshift */
373 2, /* size (0 = byte, 1 = short, 2 = long) */
374 16, /* bitsize */
b34976b6 375 TRUE, /* pc_relative */
252b5132
RH
376 0, /* bitpos */
377 complain_overflow_signed, /* complain_on_overflow */
378 bfd_elf_generic_reloc, /* special_function */
379 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 380 FALSE, /* partial_inplace */
252b5132
RH
381 0, /* src_mask */
382 0xfffc, /* dst_mask */
b34976b6 383 TRUE), /* pcrel_offset */
252b5132
RH
384
385 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
386 symbol. */
387 HOWTO (R_PPC_GOT16, /* type */
388 0, /* rightshift */
389 1, /* size (0 = byte, 1 = short, 2 = long) */
390 16, /* bitsize */
b34976b6 391 FALSE, /* pc_relative */
252b5132
RH
392 0, /* bitpos */
393 complain_overflow_signed, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_PPC_GOT16", /* name */
b34976b6 396 FALSE, /* partial_inplace */
252b5132
RH
397 0, /* src_mask */
398 0xffff, /* dst_mask */
b34976b6 399 FALSE), /* pcrel_offset */
252b5132
RH
400
401 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
402 the symbol. */
403 HOWTO (R_PPC_GOT16_LO, /* type */
404 0, /* rightshift */
405 1, /* size (0 = byte, 1 = short, 2 = long) */
406 16, /* bitsize */
b34976b6 407 FALSE, /* pc_relative */
252b5132
RH
408 0, /* bitpos */
409 complain_overflow_dont, /* complain_on_overflow */
410 bfd_elf_generic_reloc, /* special_function */
411 "R_PPC_GOT16_LO", /* name */
b34976b6 412 FALSE, /* partial_inplace */
252b5132
RH
413 0, /* src_mask */
414 0xffff, /* dst_mask */
b34976b6 415 FALSE), /* pcrel_offset */
252b5132
RH
416
417 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
418 the symbol. */
419 HOWTO (R_PPC_GOT16_HI, /* type */
420 16, /* rightshift */
421 1, /* size (0 = byte, 1 = short, 2 = long) */
422 16, /* bitsize */
b34976b6 423 FALSE, /* pc_relative */
252b5132
RH
424 0, /* bitpos */
425 complain_overflow_bitfield, /* complain_on_overflow */
426 bfd_elf_generic_reloc, /* special_function */
427 "R_PPC_GOT16_HI", /* name */
b34976b6 428 FALSE, /* partial_inplace */
252b5132
RH
429 0, /* src_mask */
430 0xffff, /* dst_mask */
b34976b6 431 FALSE), /* pcrel_offset */
252b5132
RH
432
433 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
434 the symbol. */
435 HOWTO (R_PPC_GOT16_HA, /* type */
436 16, /* rightshift */
437 1, /* size (0 = byte, 1 = short, 2 = long) */
438 16, /* bitsize */
b34976b6 439 FALSE, /* pc_relative */
252b5132
RH
440 0, /* bitpos */
441 complain_overflow_bitfield, /* complain_on_overflow */
442 ppc_elf_addr16_ha_reloc, /* special_function */
443 "R_PPC_GOT16_HA", /* name */
b34976b6 444 FALSE, /* partial_inplace */
252b5132
RH
445 0, /* src_mask */
446 0xffff, /* dst_mask */
b34976b6 447 FALSE), /* pcrel_offset */
252b5132
RH
448
449 /* Like R_PPC_REL24, but referring to the procedure linkage table
450 entry for the symbol. */
451 HOWTO (R_PPC_PLTREL24, /* type */
452 0, /* rightshift */
453 2, /* size (0 = byte, 1 = short, 2 = long) */
454 26, /* bitsize */
b34976b6 455 TRUE, /* pc_relative */
252b5132
RH
456 0, /* bitpos */
457 complain_overflow_signed, /* complain_on_overflow */
458 bfd_elf_generic_reloc, /* special_function */
459 "R_PPC_PLTREL24", /* name */
b34976b6 460 FALSE, /* partial_inplace */
252b5132
RH
461 0, /* src_mask */
462 0x3fffffc, /* dst_mask */
b34976b6 463 TRUE), /* pcrel_offset */
252b5132
RH
464
465 /* This is used only by the dynamic linker. The symbol should exist
466 both in the object being run and in some shared library. The
467 dynamic linker copies the data addressed by the symbol from the
468 shared library into the object, because the object being
469 run has to have the data at some particular address. */
470 HOWTO (R_PPC_COPY, /* type */
471 0, /* rightshift */
472 2, /* size (0 = byte, 1 = short, 2 = long) */
473 32, /* bitsize */
b34976b6 474 FALSE, /* pc_relative */
252b5132
RH
475 0, /* bitpos */
476 complain_overflow_bitfield, /* complain_on_overflow */
477 bfd_elf_generic_reloc, /* special_function */
478 "R_PPC_COPY", /* name */
b34976b6 479 FALSE, /* partial_inplace */
252b5132
RH
480 0, /* src_mask */
481 0, /* dst_mask */
b34976b6 482 FALSE), /* pcrel_offset */
252b5132
RH
483
484 /* Like R_PPC_ADDR32, but used when setting global offset table
485 entries. */
486 HOWTO (R_PPC_GLOB_DAT, /* type */
487 0, /* rightshift */
488 2, /* size (0 = byte, 1 = short, 2 = long) */
489 32, /* bitsize */
b34976b6 490 FALSE, /* pc_relative */
252b5132
RH
491 0, /* bitpos */
492 complain_overflow_bitfield, /* complain_on_overflow */
493 bfd_elf_generic_reloc, /* special_function */
494 "R_PPC_GLOB_DAT", /* name */
b34976b6 495 FALSE, /* partial_inplace */
252b5132
RH
496 0, /* src_mask */
497 0xffffffff, /* dst_mask */
b34976b6 498 FALSE), /* pcrel_offset */
252b5132
RH
499
500 /* Marks a procedure linkage table entry for a symbol. */
501 HOWTO (R_PPC_JMP_SLOT, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 32, /* bitsize */
b34976b6 505 FALSE, /* pc_relative */
252b5132
RH
506 0, /* bitpos */
507 complain_overflow_bitfield, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_PPC_JMP_SLOT", /* name */
b34976b6 510 FALSE, /* partial_inplace */
252b5132
RH
511 0, /* src_mask */
512 0, /* dst_mask */
b34976b6 513 FALSE), /* pcrel_offset */
252b5132
RH
514
515 /* Used only by the dynamic linker. When the object is run, this
516 longword is set to the load address of the object, plus the
517 addend. */
518 HOWTO (R_PPC_RELATIVE, /* type */
519 0, /* rightshift */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
521 32, /* bitsize */
b34976b6 522 FALSE, /* pc_relative */
252b5132
RH
523 0, /* bitpos */
524 complain_overflow_bitfield, /* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_PPC_RELATIVE", /* name */
b34976b6 527 FALSE, /* partial_inplace */
252b5132
RH
528 0, /* src_mask */
529 0xffffffff, /* dst_mask */
b34976b6 530 FALSE), /* pcrel_offset */
252b5132
RH
531
532 /* Like R_PPC_REL24, but uses the value of the symbol within the
533 object rather than the final value. Normally used for
534 _GLOBAL_OFFSET_TABLE_. */
535 HOWTO (R_PPC_LOCAL24PC, /* type */
536 0, /* rightshift */
537 2, /* size (0 = byte, 1 = short, 2 = long) */
538 26, /* bitsize */
b34976b6 539 TRUE, /* pc_relative */
252b5132
RH
540 0, /* bitpos */
541 complain_overflow_signed, /* complain_on_overflow */
542 bfd_elf_generic_reloc, /* special_function */
543 "R_PPC_LOCAL24PC", /* name */
b34976b6 544 FALSE, /* partial_inplace */
252b5132
RH
545 0, /* src_mask */
546 0x3fffffc, /* dst_mask */
b34976b6 547 TRUE), /* pcrel_offset */
252b5132
RH
548
549 /* Like R_PPC_ADDR32, but may be unaligned. */
550 HOWTO (R_PPC_UADDR32, /* type */
551 0, /* rightshift */
552 2, /* size (0 = byte, 1 = short, 2 = long) */
553 32, /* bitsize */
b34976b6 554 FALSE, /* pc_relative */
252b5132
RH
555 0, /* bitpos */
556 complain_overflow_bitfield, /* complain_on_overflow */
557 bfd_elf_generic_reloc, /* special_function */
558 "R_PPC_UADDR32", /* name */
b34976b6 559 FALSE, /* partial_inplace */
252b5132
RH
560 0, /* src_mask */
561 0xffffffff, /* dst_mask */
b34976b6 562 FALSE), /* pcrel_offset */
252b5132
RH
563
564 /* Like R_PPC_ADDR16, but may be unaligned. */
565 HOWTO (R_PPC_UADDR16, /* type */
566 0, /* rightshift */
567 1, /* size (0 = byte, 1 = short, 2 = long) */
568 16, /* bitsize */
b34976b6 569 FALSE, /* pc_relative */
252b5132
RH
570 0, /* bitpos */
571 complain_overflow_bitfield, /* complain_on_overflow */
572 bfd_elf_generic_reloc, /* special_function */
573 "R_PPC_UADDR16", /* name */
b34976b6 574 FALSE, /* partial_inplace */
252b5132
RH
575 0, /* src_mask */
576 0xffff, /* dst_mask */
b34976b6 577 FALSE), /* pcrel_offset */
252b5132
RH
578
579 /* 32-bit PC relative */
580 HOWTO (R_PPC_REL32, /* type */
581 0, /* rightshift */
582 2, /* size (0 = byte, 1 = short, 2 = long) */
583 32, /* bitsize */
b34976b6 584 TRUE, /* pc_relative */
252b5132
RH
585 0, /* bitpos */
586 complain_overflow_bitfield, /* complain_on_overflow */
587 bfd_elf_generic_reloc, /* special_function */
588 "R_PPC_REL32", /* name */
b34976b6 589 FALSE, /* partial_inplace */
252b5132
RH
590 0, /* src_mask */
591 0xffffffff, /* dst_mask */
b34976b6 592 TRUE), /* pcrel_offset */
252b5132
RH
593
594 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 595 FIXME: not supported. */
252b5132
RH
596 HOWTO (R_PPC_PLT32, /* type */
597 0, /* rightshift */
598 2, /* size (0 = byte, 1 = short, 2 = long) */
599 32, /* bitsize */
b34976b6 600 FALSE, /* pc_relative */
252b5132
RH
601 0, /* bitpos */
602 complain_overflow_bitfield, /* complain_on_overflow */
603 bfd_elf_generic_reloc, /* special_function */
604 "R_PPC_PLT32", /* name */
b34976b6 605 FALSE, /* partial_inplace */
252b5132
RH
606 0, /* src_mask */
607 0, /* dst_mask */
b34976b6 608 FALSE), /* pcrel_offset */
252b5132
RH
609
610 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 611 FIXME: not supported. */
252b5132
RH
612 HOWTO (R_PPC_PLTREL32, /* type */
613 0, /* rightshift */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
615 32, /* bitsize */
b34976b6 616 TRUE, /* pc_relative */
252b5132
RH
617 0, /* bitpos */
618 complain_overflow_bitfield, /* complain_on_overflow */
619 bfd_elf_generic_reloc, /* special_function */
620 "R_PPC_PLTREL32", /* name */
b34976b6 621 FALSE, /* partial_inplace */
252b5132
RH
622 0, /* src_mask */
623 0, /* dst_mask */
b34976b6 624 TRUE), /* pcrel_offset */
252b5132
RH
625
626 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
627 the symbol. */
628 HOWTO (R_PPC_PLT16_LO, /* type */
629 0, /* rightshift */
630 1, /* size (0 = byte, 1 = short, 2 = long) */
631 16, /* bitsize */
b34976b6 632 FALSE, /* pc_relative */
252b5132
RH
633 0, /* bitpos */
634 complain_overflow_dont, /* complain_on_overflow */
635 bfd_elf_generic_reloc, /* special_function */
636 "R_PPC_PLT16_LO", /* name */
b34976b6 637 FALSE, /* partial_inplace */
252b5132
RH
638 0, /* src_mask */
639 0xffff, /* dst_mask */
b34976b6 640 FALSE), /* pcrel_offset */
252b5132
RH
641
642 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
643 the symbol. */
644 HOWTO (R_PPC_PLT16_HI, /* type */
645 16, /* rightshift */
646 1, /* size (0 = byte, 1 = short, 2 = long) */
647 16, /* bitsize */
b34976b6 648 FALSE, /* pc_relative */
252b5132
RH
649 0, /* bitpos */
650 complain_overflow_bitfield, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_PPC_PLT16_HI", /* name */
b34976b6 653 FALSE, /* partial_inplace */
252b5132
RH
654 0, /* src_mask */
655 0xffff, /* dst_mask */
b34976b6 656 FALSE), /* pcrel_offset */
252b5132
RH
657
658 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
659 the symbol. */
660 HOWTO (R_PPC_PLT16_HA, /* type */
661 16, /* rightshift */
662 1, /* size (0 = byte, 1 = short, 2 = long) */
663 16, /* bitsize */
b34976b6 664 FALSE, /* pc_relative */
252b5132
RH
665 0, /* bitpos */
666 complain_overflow_bitfield, /* complain_on_overflow */
667 ppc_elf_addr16_ha_reloc, /* special_function */
668 "R_PPC_PLT16_HA", /* name */
b34976b6 669 FALSE, /* partial_inplace */
252b5132
RH
670 0, /* src_mask */
671 0xffff, /* dst_mask */
b34976b6 672 FALSE), /* pcrel_offset */
252b5132
RH
673
674 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
675 small data items. */
676 HOWTO (R_PPC_SDAREL16, /* type */
677 0, /* rightshift */
678 1, /* size (0 = byte, 1 = short, 2 = long) */
679 16, /* bitsize */
b34976b6 680 FALSE, /* pc_relative */
252b5132
RH
681 0, /* bitpos */
682 complain_overflow_signed, /* complain_on_overflow */
683 bfd_elf_generic_reloc, /* special_function */
684 "R_PPC_SDAREL16", /* name */
b34976b6 685 FALSE, /* partial_inplace */
252b5132
RH
686 0, /* src_mask */
687 0xffff, /* dst_mask */
b34976b6 688 FALSE), /* pcrel_offset */
252b5132 689
c061c2d8 690 /* 16-bit section relative relocation. */
252b5132
RH
691 HOWTO (R_PPC_SECTOFF, /* type */
692 0, /* rightshift */
c061c2d8
AM
693 1, /* size (0 = byte, 1 = short, 2 = long) */
694 16, /* bitsize */
b34976b6 695 FALSE, /* pc_relative */
252b5132
RH
696 0, /* bitpos */
697 complain_overflow_bitfield, /* complain_on_overflow */
698 bfd_elf_generic_reloc, /* special_function */
699 "R_PPC_SECTOFF", /* name */
b34976b6 700 FALSE, /* partial_inplace */
252b5132 701 0, /* src_mask */
c061c2d8 702 0xffff, /* dst_mask */
b34976b6 703 FALSE), /* pcrel_offset */
252b5132 704
c3668558 705 /* 16-bit lower half section relative relocation. */
252b5132
RH
706 HOWTO (R_PPC_SECTOFF_LO, /* type */
707 0, /* rightshift */
708 1, /* size (0 = byte, 1 = short, 2 = long) */
709 16, /* bitsize */
b34976b6 710 FALSE, /* pc_relative */
252b5132
RH
711 0, /* bitpos */
712 complain_overflow_dont, /* complain_on_overflow */
713 bfd_elf_generic_reloc, /* special_function */
714 "R_PPC_SECTOFF_LO", /* name */
b34976b6 715 FALSE, /* partial_inplace */
252b5132
RH
716 0, /* src_mask */
717 0xffff, /* dst_mask */
b34976b6 718 FALSE), /* pcrel_offset */
252b5132 719
c3668558 720 /* 16-bit upper half section relative relocation. */
252b5132
RH
721 HOWTO (R_PPC_SECTOFF_HI, /* type */
722 16, /* rightshift */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
724 16, /* bitsize */
b34976b6 725 FALSE, /* pc_relative */
252b5132
RH
726 0, /* bitpos */
727 complain_overflow_bitfield, /* complain_on_overflow */
728 bfd_elf_generic_reloc, /* special_function */
729 "R_PPC_SECTOFF_HI", /* name */
b34976b6 730 FALSE, /* partial_inplace */
252b5132
RH
731 0, /* src_mask */
732 0xffff, /* dst_mask */
b34976b6 733 FALSE), /* pcrel_offset */
252b5132 734
c3668558 735 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
736 HOWTO (R_PPC_SECTOFF_HA, /* type */
737 16, /* rightshift */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
739 16, /* bitsize */
b34976b6 740 FALSE, /* pc_relative */
252b5132
RH
741 0, /* bitpos */
742 complain_overflow_bitfield, /* complain_on_overflow */
743 ppc_elf_addr16_ha_reloc, /* special_function */
744 "R_PPC_SECTOFF_HA", /* name */
b34976b6 745 FALSE, /* partial_inplace */
252b5132
RH
746 0, /* src_mask */
747 0xffff, /* dst_mask */
b34976b6 748 FALSE), /* pcrel_offset */
252b5132 749
7619e7c7
AM
750 /* Marker reloc for TLS. */
751 HOWTO (R_PPC_TLS,
252b5132
RH
752 0, /* rightshift */
753 2, /* size (0 = byte, 1 = short, 2 = long) */
754 32, /* bitsize */
b34976b6 755 FALSE, /* pc_relative */
252b5132 756 0, /* bitpos */
7619e7c7 757 complain_overflow_dont, /* complain_on_overflow */
252b5132 758 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
759 "R_PPC_TLS", /* name */
760 FALSE, /* partial_inplace */
761 0, /* src_mask */
762 0, /* dst_mask */
763 FALSE), /* pcrel_offset */
764
765 /* Computes the load module index of the load module that contains the
766 definition of its TLS sym. */
767 HOWTO (R_PPC_DTPMOD32,
768 0, /* rightshift */
769 2, /* size (0 = byte, 1 = short, 2 = long) */
770 32, /* bitsize */
771 FALSE, /* pc_relative */
772 0, /* bitpos */
773 complain_overflow_dont, /* complain_on_overflow */
774 ppc_elf_unhandled_reloc, /* special_function */
775 "R_PPC_DTPMOD32", /* name */
b34976b6 776 FALSE, /* partial_inplace */
252b5132
RH
777 0, /* src_mask */
778 0xffffffff, /* dst_mask */
b34976b6 779 FALSE), /* pcrel_offset */
252b5132 780
7619e7c7
AM
781 /* Computes a dtv-relative displacement, the difference between the value
782 of sym+add and the base address of the thread-local storage block that
783 contains the definition of sym, minus 0x8000. */
784 HOWTO (R_PPC_DTPREL32,
785 0, /* rightshift */
786 2, /* size (0 = byte, 1 = short, 2 = long) */
787 32, /* bitsize */
788 FALSE, /* pc_relative */
789 0, /* bitpos */
790 complain_overflow_dont, /* complain_on_overflow */
791 ppc_elf_unhandled_reloc, /* special_function */
792 "R_PPC_DTPREL32", /* name */
793 FALSE, /* partial_inplace */
794 0, /* src_mask */
795 0xffffffff, /* dst_mask */
796 FALSE), /* pcrel_offset */
797
798 /* A 16 bit dtprel reloc. */
799 HOWTO (R_PPC_DTPREL16,
252b5132
RH
800 0, /* rightshift */
801 1, /* size (0 = byte, 1 = short, 2 = long) */
802 16, /* bitsize */
b34976b6 803 FALSE, /* pc_relative */
252b5132 804 0, /* bitpos */
7619e7c7
AM
805 complain_overflow_signed, /* complain_on_overflow */
806 ppc_elf_unhandled_reloc, /* special_function */
807 "R_PPC_DTPREL16", /* name */
b34976b6 808 FALSE, /* partial_inplace */
252b5132
RH
809 0, /* src_mask */
810 0xffff, /* dst_mask */
b34976b6 811 FALSE), /* pcrel_offset */
252b5132 812
7619e7c7
AM
813 /* Like DTPREL16, but no overflow. */
814 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
815 0, /* rightshift */
816 1, /* size (0 = byte, 1 = short, 2 = long) */
817 16, /* bitsize */
b34976b6 818 FALSE, /* pc_relative */
252b5132 819 0, /* bitpos */
7619e7c7
AM
820 complain_overflow_dont, /* complain_on_overflow */
821 ppc_elf_unhandled_reloc, /* special_function */
822 "R_PPC_DTPREL16_LO", /* name */
b34976b6 823 FALSE, /* partial_inplace */
252b5132
RH
824 0, /* src_mask */
825 0xffff, /* dst_mask */
b34976b6 826 FALSE), /* pcrel_offset */
252b5132 827
7619e7c7
AM
828 /* Like DTPREL16_LO, but next higher group of 16 bits. */
829 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
830 16, /* rightshift */
831 1, /* size (0 = byte, 1 = short, 2 = long) */
832 16, /* bitsize */
b34976b6 833 FALSE, /* pc_relative */
252b5132
RH
834 0, /* bitpos */
835 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
836 ppc_elf_unhandled_reloc, /* special_function */
837 "R_PPC_DTPREL16_HI", /* name */
b34976b6 838 FALSE, /* partial_inplace */
252b5132
RH
839 0, /* src_mask */
840 0xffff, /* dst_mask */
b34976b6 841 FALSE), /* pcrel_offset */
252b5132 842
7619e7c7
AM
843 /* Like DTPREL16_HI, but adjust for low 16 bits. */
844 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
845 16, /* rightshift */
846 1, /* size (0 = byte, 1 = short, 2 = long) */
847 16, /* bitsize */
b34976b6 848 FALSE, /* pc_relative */
252b5132
RH
849 0, /* bitpos */
850 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
851 ppc_elf_unhandled_reloc, /* special_function */
852 "R_PPC_DTPREL16_HA", /* name */
b34976b6 853 FALSE, /* partial_inplace */
252b5132
RH
854 0, /* src_mask */
855 0xffff, /* dst_mask */
b34976b6 856 FALSE), /* pcrel_offset */
252b5132 857
7619e7c7
AM
858 /* Computes a tp-relative displacement, the difference between the value of
859 sym+add and the value of the thread pointer (r13). */
860 HOWTO (R_PPC_TPREL32,
861 0, /* rightshift */
862 2, /* size (0 = byte, 1 = short, 2 = long) */
863 32, /* bitsize */
864 FALSE, /* pc_relative */
865 0, /* bitpos */
866 complain_overflow_dont, /* complain_on_overflow */
867 ppc_elf_unhandled_reloc, /* special_function */
868 "R_PPC_TPREL32", /* name */
869 FALSE, /* partial_inplace */
870 0, /* src_mask */
871 0xffffffff, /* dst_mask */
872 FALSE), /* pcrel_offset */
873
874 /* A 16 bit tprel reloc. */
875 HOWTO (R_PPC_TPREL16,
252b5132
RH
876 0, /* rightshift */
877 1, /* size (0 = byte, 1 = short, 2 = long) */
878 16, /* bitsize */
b34976b6 879 FALSE, /* pc_relative */
252b5132 880 0, /* bitpos */
7619e7c7
AM
881 complain_overflow_signed, /* complain_on_overflow */
882 ppc_elf_unhandled_reloc, /* special_function */
883 "R_PPC_TPREL16", /* name */
b34976b6 884 FALSE, /* partial_inplace */
252b5132
RH
885 0, /* src_mask */
886 0xffff, /* dst_mask */
b34976b6 887 FALSE), /* pcrel_offset */
252b5132 888
7619e7c7
AM
889 /* Like TPREL16, but no overflow. */
890 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
891 0, /* rightshift */
892 1, /* size (0 = byte, 1 = short, 2 = long) */
893 16, /* bitsize */
b34976b6 894 FALSE, /* pc_relative */
252b5132 895 0, /* bitpos */
7619e7c7
AM
896 complain_overflow_dont, /* complain_on_overflow */
897 ppc_elf_unhandled_reloc, /* special_function */
898 "R_PPC_TPREL16_LO", /* name */
b34976b6 899 FALSE, /* partial_inplace */
252b5132
RH
900 0, /* src_mask */
901 0xffff, /* dst_mask */
b34976b6 902 FALSE), /* pcrel_offset */
252b5132 903
7619e7c7
AM
904 /* Like TPREL16_LO, but next higher group of 16 bits. */
905 HOWTO (R_PPC_TPREL16_HI,
906 16, /* rightshift */
907 1, /* size (0 = byte, 1 = short, 2 = long) */
908 16, /* bitsize */
909 FALSE, /* pc_relative */
910 0, /* bitpos */
911 complain_overflow_dont, /* complain_on_overflow */
912 ppc_elf_unhandled_reloc, /* special_function */
913 "R_PPC_TPREL16_HI", /* name */
914 FALSE, /* partial_inplace */
915 0, /* src_mask */
916 0xffff, /* dst_mask */
917 FALSE), /* pcrel_offset */
918
919 /* Like TPREL16_HI, but adjust for low 16 bits. */
920 HOWTO (R_PPC_TPREL16_HA,
921 16, /* rightshift */
922 1, /* size (0 = byte, 1 = short, 2 = long) */
923 16, /* bitsize */
924 FALSE, /* pc_relative */
925 0, /* bitpos */
926 complain_overflow_dont, /* complain_on_overflow */
927 ppc_elf_unhandled_reloc, /* special_function */
928 "R_PPC_TPREL16_HA", /* name */
929 FALSE, /* partial_inplace */
930 0, /* src_mask */
931 0xffff, /* dst_mask */
932 FALSE), /* pcrel_offset */
933
934 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
935 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
936 to the first entry. */
937 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
938 0, /* rightshift */
939 1, /* size (0 = byte, 1 = short, 2 = long) */
940 16, /* bitsize */
b34976b6 941 FALSE, /* pc_relative */
252b5132
RH
942 0, /* bitpos */
943 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
944 ppc_elf_unhandled_reloc, /* special_function */
945 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 946 FALSE, /* partial_inplace */
252b5132
RH
947 0, /* src_mask */
948 0xffff, /* dst_mask */
b34976b6 949 FALSE), /* pcrel_offset */
252b5132 950
7619e7c7
AM
951 /* Like GOT_TLSGD16, but no overflow. */
952 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 953 0, /* rightshift */
7619e7c7 954 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 955 16, /* bitsize */
b34976b6 956 FALSE, /* pc_relative */
252b5132 957 0, /* bitpos */
7619e7c7
AM
958 complain_overflow_dont, /* complain_on_overflow */
959 ppc_elf_unhandled_reloc, /* special_function */
960 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 961 FALSE, /* partial_inplace */
252b5132
RH
962 0, /* src_mask */
963 0xffff, /* dst_mask */
b34976b6 964 FALSE), /* pcrel_offset */
252b5132 965
7619e7c7
AM
966 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
967 HOWTO (R_PPC_GOT_TLSGD16_HI,
968 16, /* rightshift */
969 1, /* size (0 = byte, 1 = short, 2 = long) */
970 16, /* bitsize */
971 FALSE, /* pc_relative */
972 0, /* bitpos */
973 complain_overflow_dont, /* complain_on_overflow */
974 ppc_elf_unhandled_reloc, /* special_function */
975 "R_PPC_GOT_TLSGD16_HI", /* name */
976 FALSE, /* partial_inplace */
977 0, /* src_mask */
978 0xffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
252b5132 980
7619e7c7
AM
981 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
982 HOWTO (R_PPC_GOT_TLSGD16_HA,
983 16, /* rightshift */
984 1, /* size (0 = byte, 1 = short, 2 = long) */
985 16, /* bitsize */
986 FALSE, /* pc_relative */
987 0, /* bitpos */
988 complain_overflow_dont, /* complain_on_overflow */
989 ppc_elf_unhandled_reloc, /* special_function */
990 "R_PPC_GOT_TLSGD16_HA", /* name */
991 FALSE, /* partial_inplace */
992 0, /* src_mask */
993 0xffff, /* dst_mask */
994 FALSE), /* pcrel_offset */
995
996 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
997 with values (sym+add)@dtpmod and zero, and computes the offset to the
998 first entry. */
999 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1000 0, /* rightshift */
1001 1, /* size (0 = byte, 1 = short, 2 = long) */
1002 16, /* bitsize */
7619e7c7 1003 FALSE, /* pc_relative */
252b5132
RH
1004 0, /* bitpos */
1005 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1006 ppc_elf_unhandled_reloc, /* special_function */
1007 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1008 FALSE, /* partial_inplace */
252b5132
RH
1009 0, /* src_mask */
1010 0xffff, /* dst_mask */
b34976b6 1011 FALSE), /* pcrel_offset */
252b5132 1012
7619e7c7
AM
1013 /* Like GOT_TLSLD16, but no overflow. */
1014 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1015 0, /* rightshift */
7619e7c7
AM
1016 1, /* size (0 = byte, 1 = short, 2 = long) */
1017 16, /* bitsize */
b34976b6 1018 FALSE, /* pc_relative */
252b5132
RH
1019 0, /* bitpos */
1020 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1021 ppc_elf_unhandled_reloc, /* special_function */
1022 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1023 FALSE, /* partial_inplace */
252b5132 1024 0, /* src_mask */
7619e7c7 1025 0xffff, /* dst_mask */
b34976b6 1026 FALSE), /* pcrel_offset */
252b5132 1027
7619e7c7
AM
1028 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1029 HOWTO (R_PPC_GOT_TLSLD16_HI,
1030 16, /* rightshift */
1031 1, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
b34976b6 1033 FALSE, /* pc_relative */
252b5132
RH
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1036 ppc_elf_unhandled_reloc, /* special_function */
1037 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1038 FALSE, /* partial_inplace */
252b5132 1039 0, /* src_mask */
7619e7c7 1040 0xffff, /* dst_mask */
b34976b6 1041 FALSE), /* pcrel_offset */
252b5132 1042
7619e7c7
AM
1043 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1044 HOWTO (R_PPC_GOT_TLSLD16_HA,
1045 16, /* rightshift */
1046 1, /* size (0 = byte, 1 = short, 2 = long) */
1047 16, /* bitsize */
1048 FALSE, /* pc_relative */
1049 0, /* bitpos */
1050 complain_overflow_dont, /* complain_on_overflow */
1051 ppc_elf_unhandled_reloc, /* special_function */
1052 "R_PPC_GOT_TLSLD16_HA", /* name */
1053 FALSE, /* partial_inplace */
1054 0, /* src_mask */
1055 0xffff, /* dst_mask */
1056 FALSE), /* pcrel_offset */
1057
1058 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1059 the offset to the entry. */
1060 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1061 0, /* rightshift */
1062 1, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
b34976b6 1064 FALSE, /* pc_relative */
252b5132
RH
1065 0, /* bitpos */
1066 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1067 ppc_elf_unhandled_reloc, /* special_function */
1068 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1069 FALSE, /* partial_inplace */
252b5132
RH
1070 0, /* src_mask */
1071 0xffff, /* dst_mask */
b34976b6 1072 FALSE), /* pcrel_offset */
252b5132 1073
7619e7c7
AM
1074 /* Like GOT_DTPREL16, but no overflow. */
1075 HOWTO (R_PPC_GOT_DTPREL16_LO,
1076 0, /* rightshift */
1077 1, /* size (0 = byte, 1 = short, 2 = long) */
1078 16, /* bitsize */
1079 FALSE, /* pc_relative */
1080 0, /* bitpos */
1081 complain_overflow_dont, /* complain_on_overflow */
1082 ppc_elf_unhandled_reloc, /* special_function */
1083 "R_PPC_GOT_DTPREL16_LO", /* name */
1084 FALSE, /* partial_inplace */
1085 0, /* src_mask */
1086 0xffff, /* dst_mask */
1087 FALSE), /* pcrel_offset */
252b5132 1088
7619e7c7
AM
1089 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1090 HOWTO (R_PPC_GOT_DTPREL16_HI,
1091 16, /* rightshift */
1092 1, /* size (0 = byte, 1 = short, 2 = long) */
1093 16, /* bitsize */
1094 FALSE, /* pc_relative */
1095 0, /* bitpos */
1096 complain_overflow_dont, /* complain_on_overflow */
1097 ppc_elf_unhandled_reloc, /* special_function */
1098 "R_PPC_GOT_DTPREL16_HI", /* name */
1099 FALSE, /* partial_inplace */
1100 0, /* src_mask */
1101 0xffff, /* dst_mask */
1102 FALSE), /* pcrel_offset */
252b5132 1103
7619e7c7
AM
1104 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1105 HOWTO (R_PPC_GOT_DTPREL16_HA,
1106 16, /* rightshift */
1107 1, /* size (0 = byte, 1 = short, 2 = long) */
1108 16, /* bitsize */
1109 FALSE, /* pc_relative */
1110 0, /* bitpos */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 ppc_elf_unhandled_reloc, /* special_function */
1113 "R_PPC_GOT_DTPREL16_HA", /* name */
1114 FALSE, /* partial_inplace */
1115 0, /* src_mask */
1116 0xffff, /* dst_mask */
1117 FALSE), /* pcrel_offset */
c3668558 1118
7619e7c7
AM
1119 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1120 offset to the entry. */
1121 HOWTO (R_PPC_GOT_TPREL16,
1122 0, /* rightshift */
1123 1, /* size (0 = byte, 1 = short, 2 = long) */
1124 16, /* bitsize */
1125 FALSE, /* pc_relative */
1126 0, /* bitpos */
1127 complain_overflow_signed, /* complain_on_overflow */
1128 ppc_elf_unhandled_reloc, /* special_function */
1129 "R_PPC_GOT_TPREL16", /* name */
1130 FALSE, /* partial_inplace */
1131 0, /* src_mask */
1132 0xffff, /* dst_mask */
1133 FALSE), /* pcrel_offset */
1134
1135 /* Like GOT_TPREL16, but no overflow. */
1136 HOWTO (R_PPC_GOT_TPREL16_LO,
1137 0, /* rightshift */
1138 1, /* size (0 = byte, 1 = short, 2 = long) */
1139 16, /* bitsize */
1140 FALSE, /* pc_relative */
1141 0, /* bitpos */
1142 complain_overflow_dont, /* complain_on_overflow */
1143 ppc_elf_unhandled_reloc, /* special_function */
1144 "R_PPC_GOT_TPREL16_LO", /* name */
1145 FALSE, /* partial_inplace */
1146 0, /* src_mask */
1147 0xffff, /* dst_mask */
1148 FALSE), /* pcrel_offset */
1149
1150 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1151 HOWTO (R_PPC_GOT_TPREL16_HI,
1152 16, /* rightshift */
1153 1, /* size (0 = byte, 1 = short, 2 = long) */
1154 16, /* bitsize */
1155 FALSE, /* pc_relative */
1156 0, /* bitpos */
1157 complain_overflow_dont, /* complain_on_overflow */
1158 ppc_elf_unhandled_reloc, /* special_function */
1159 "R_PPC_GOT_TPREL16_HI", /* name */
1160 FALSE, /* partial_inplace */
1161 0, /* src_mask */
1162 0xffff, /* dst_mask */
1163 FALSE), /* pcrel_offset */
1164
1165 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1166 HOWTO (R_PPC_GOT_TPREL16_HA,
1167 16, /* rightshift */
1168 1, /* size (0 = byte, 1 = short, 2 = long) */
1169 16, /* bitsize */
1170 FALSE, /* pc_relative */
1171 0, /* bitpos */
1172 complain_overflow_dont, /* complain_on_overflow */
1173 ppc_elf_unhandled_reloc, /* special_function */
1174 "R_PPC_GOT_TPREL16_HA", /* name */
1175 FALSE, /* partial_inplace */
1176 0, /* src_mask */
1177 0xffff, /* dst_mask */
1178 FALSE), /* pcrel_offset */
1179
1180 /* The remaining relocs are from the Embedded ELF ABI, and are not
1181 in the SVR4 ELF ABI. */
1182
1183 /* 32 bit value resulting from the addend minus the symbol. */
1184 HOWTO (R_PPC_EMB_NADDR32, /* type */
1185 0, /* rightshift */
1186 2, /* size (0 = byte, 1 = short, 2 = long) */
1187 32, /* bitsize */
1188 FALSE, /* pc_relative */
1189 0, /* bitpos */
1190 complain_overflow_bitfield, /* complain_on_overflow */
1191 bfd_elf_generic_reloc, /* special_function */
1192 "R_PPC_EMB_NADDR32", /* name */
1193 FALSE, /* partial_inplace */
1194 0, /* src_mask */
1195 0xffffffff, /* dst_mask */
1196 FALSE), /* pcrel_offset */
1197
1198 /* 16 bit value resulting from the addend minus the symbol. */
1199 HOWTO (R_PPC_EMB_NADDR16, /* type */
1200 0, /* rightshift */
1201 1, /* size (0 = byte, 1 = short, 2 = long) */
1202 16, /* bitsize */
1203 FALSE, /* pc_relative */
1204 0, /* bitpos */
1205 complain_overflow_bitfield, /* complain_on_overflow */
1206 bfd_elf_generic_reloc, /* special_function */
1207 "R_PPC_EMB_NADDR16", /* name */
1208 FALSE, /* partial_inplace */
1209 0, /* src_mask */
1210 0xffff, /* dst_mask */
1211 FALSE), /* pcrel_offset */
1212
1213 /* 16 bit value resulting from the addend minus the symbol. */
1214 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1215 0, /* rightshift */
1216 1, /* size (0 = byte, 1 = short, 2 = long) */
1217 16, /* bitsize */
1218 FALSE, /* pc_relative */
1219 0, /* bitpos */
1220 complain_overflow_dont,/* complain_on_overflow */
1221 bfd_elf_generic_reloc, /* special_function */
1222 "R_PPC_EMB_ADDR16_LO", /* name */
1223 FALSE, /* partial_inplace */
1224 0, /* src_mask */
1225 0xffff, /* dst_mask */
1226 FALSE), /* pcrel_offset */
1227
1228 /* The high order 16 bits of the addend minus the symbol. */
1229 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1230 16, /* rightshift */
1231 1, /* size (0 = byte, 1 = short, 2 = long) */
1232 16, /* bitsize */
1233 FALSE, /* pc_relative */
1234 0, /* bitpos */
1235 complain_overflow_dont, /* complain_on_overflow */
1236 bfd_elf_generic_reloc, /* special_function */
1237 "R_PPC_EMB_NADDR16_HI", /* name */
1238 FALSE, /* partial_inplace */
1239 0, /* src_mask */
1240 0xffff, /* dst_mask */
1241 FALSE), /* pcrel_offset */
1242
1243 /* The high order 16 bits of the result of the addend minus the address,
1244 plus 1 if the contents of the low 16 bits, treated as a signed number,
1245 is negative. */
1246 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1247 16, /* rightshift */
1248 1, /* size (0 = byte, 1 = short, 2 = long) */
1249 16, /* bitsize */
1250 FALSE, /* pc_relative */
1251 0, /* bitpos */
1252 complain_overflow_dont, /* complain_on_overflow */
25dbc73a
AM
1253 ppc_elf_addr16_ha_reloc, /* special_function */
1254 "R_PPC_EMB_NADDR16_HA", /* name */
1255 FALSE, /* partial_inplace */
1256 0, /* src_mask */
1257 0xffff, /* dst_mask */
1258 FALSE), /* pcrel_offset */
1259
1260 /* 16 bit value resulting from allocating a 4 byte word to hold an
1261 address in the .sdata section, and returning the offset from
1262 _SDA_BASE_ for that relocation. */
1263 HOWTO (R_PPC_EMB_SDAI16, /* type */
1264 0, /* rightshift */
1265 1, /* size (0 = byte, 1 = short, 2 = long) */
1266 16, /* bitsize */
1267 FALSE, /* pc_relative */
1268 0, /* bitpos */
1269 complain_overflow_bitfield, /* complain_on_overflow */
1270 bfd_elf_generic_reloc, /* special_function */
1271 "R_PPC_EMB_SDAI16", /* name */
1272 FALSE, /* partial_inplace */
1273 0, /* src_mask */
1274 0xffff, /* dst_mask */
1275 FALSE), /* pcrel_offset */
1276
1277 /* 16 bit value resulting from allocating a 4 byte word to hold an
1278 address in the .sdata2 section, and returning the offset from
1279 _SDA2_BASE_ for that relocation. */
1280 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1281 0, /* rightshift */
1282 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 16, /* bitsize */
1284 FALSE, /* pc_relative */
1285 0, /* bitpos */
1286 complain_overflow_bitfield, /* complain_on_overflow */
1287 bfd_elf_generic_reloc, /* special_function */
1288 "R_PPC_EMB_SDA2I16", /* name */
1289 FALSE, /* partial_inplace */
1290 0, /* src_mask */
1291 0xffff, /* dst_mask */
1292 FALSE), /* pcrel_offset */
1293
1294 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1295 small data items. */
1296 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1297 0, /* rightshift */
1298 1, /* size (0 = byte, 1 = short, 2 = long) */
1299 16, /* bitsize */
1300 FALSE, /* pc_relative */
1301 0, /* bitpos */
1302 complain_overflow_signed, /* complain_on_overflow */
1303 bfd_elf_generic_reloc, /* special_function */
1304 "R_PPC_EMB_SDA2REL", /* name */
1305 FALSE, /* partial_inplace */
1306 0, /* src_mask */
1307 0xffff, /* dst_mask */
1308 FALSE), /* pcrel_offset */
1309
1310 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1311 signed offset from the appropriate base, and filling in the register
1312 field with the appropriate register (0, 2, or 13). */
1313 HOWTO (R_PPC_EMB_SDA21, /* type */
1314 0, /* rightshift */
1315 2, /* size (0 = byte, 1 = short, 2 = long) */
1316 16, /* bitsize */
1317 FALSE, /* pc_relative */
1318 0, /* bitpos */
1319 complain_overflow_signed, /* complain_on_overflow */
1320 bfd_elf_generic_reloc, /* special_function */
1321 "R_PPC_EMB_SDA21", /* name */
1322 FALSE, /* partial_inplace */
1323 0, /* src_mask */
1324 0xffff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1326
1327 /* Relocation not handled: R_PPC_EMB_MRKREF */
1328 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1329 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1330 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1331 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1332 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1333
1334 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1335 in the 16 bit signed offset from the appropriate base, and filling in the
1336 register field with the appropriate register (0, 2, or 13). */
1337 HOWTO (R_PPC_EMB_RELSDA, /* type */
1338 0, /* rightshift */
1339 1, /* size (0 = byte, 1 = short, 2 = long) */
1340 16, /* bitsize */
1341 TRUE, /* pc_relative */
1342 0, /* bitpos */
1343 complain_overflow_signed, /* complain_on_overflow */
1344 bfd_elf_generic_reloc, /* special_function */
1345 "R_PPC_EMB_RELSDA", /* name */
1346 FALSE, /* partial_inplace */
1347 0, /* src_mask */
1348 0xffff, /* dst_mask */
1349 FALSE), /* pcrel_offset */
1350
d7128ce4
AM
1351 /* A 16 bit relative relocation. */
1352 HOWTO (R_PPC_REL16, /* type */
1353 0, /* rightshift */
1354 1, /* size (0 = byte, 1 = short, 2 = long) */
1355 16, /* bitsize */
1356 TRUE, /* pc_relative */
1357 0, /* bitpos */
1358 complain_overflow_bitfield, /* complain_on_overflow */
1359 bfd_elf_generic_reloc, /* special_function */
1360 "R_PPC_REL16", /* name */
1361 FALSE, /* partial_inplace */
1362 0, /* src_mask */
1363 0xffff, /* dst_mask */
1364 TRUE), /* pcrel_offset */
1365
1366 /* A 16 bit relative relocation without overflow. */
1367 HOWTO (R_PPC_REL16_LO, /* type */
1368 0, /* rightshift */
1369 1, /* size (0 = byte, 1 = short, 2 = long) */
1370 16, /* bitsize */
1371 TRUE, /* pc_relative */
1372 0, /* bitpos */
1373 complain_overflow_dont,/* complain_on_overflow */
1374 bfd_elf_generic_reloc, /* special_function */
1375 "R_PPC_REL16_LO", /* name */
1376 FALSE, /* partial_inplace */
1377 0, /* src_mask */
1378 0xffff, /* dst_mask */
1379 TRUE), /* pcrel_offset */
1380
1381 /* The high order 16 bits of a relative address. */
1382 HOWTO (R_PPC_REL16_HI, /* type */
1383 16, /* rightshift */
1384 1, /* size (0 = byte, 1 = short, 2 = long) */
1385 16, /* bitsize */
1386 TRUE, /* pc_relative */
1387 0, /* bitpos */
1388 complain_overflow_dont, /* complain_on_overflow */
1389 bfd_elf_generic_reloc, /* special_function */
1390 "R_PPC_REL16_HI", /* name */
1391 FALSE, /* partial_inplace */
1392 0, /* src_mask */
1393 0xffff, /* dst_mask */
1394 TRUE), /* pcrel_offset */
1395
1396 /* The high order 16 bits of a relative address, plus 1 if the contents of
1397 the low 16 bits, treated as a signed number, is negative. */
1398 HOWTO (R_PPC_REL16_HA, /* type */
1399 16, /* rightshift */
1400 1, /* size (0 = byte, 1 = short, 2 = long) */
1401 16, /* bitsize */
1402 TRUE, /* pc_relative */
1403 0, /* bitpos */
1404 complain_overflow_dont, /* complain_on_overflow */
1405 ppc_elf_addr16_ha_reloc, /* special_function */
1406 "R_PPC_REL16_HA", /* name */
1407 FALSE, /* partial_inplace */
1408 0, /* src_mask */
1409 0xffff, /* dst_mask */
1410 TRUE), /* pcrel_offset */
1411
25dbc73a
AM
1412 /* GNU extension to record C++ vtable hierarchy. */
1413 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1414 0, /* rightshift */
1415 0, /* size (0 = byte, 1 = short, 2 = long) */
1416 0, /* bitsize */
1417 FALSE, /* pc_relative */
1418 0, /* bitpos */
1419 complain_overflow_dont, /* complain_on_overflow */
1420 NULL, /* special_function */
1421 "R_PPC_GNU_VTINHERIT", /* name */
1422 FALSE, /* partial_inplace */
1423 0, /* src_mask */
1424 0, /* dst_mask */
1425 FALSE), /* pcrel_offset */
1426
1427 /* GNU extension to record C++ vtable member usage. */
1428 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1429 0, /* rightshift */
1430 0, /* size (0 = byte, 1 = short, 2 = long) */
1431 0, /* bitsize */
1432 FALSE, /* pc_relative */
1433 0, /* bitpos */
1434 complain_overflow_dont, /* complain_on_overflow */
1435 NULL, /* special_function */
1436 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1437 FALSE, /* partial_inplace */
1438 0, /* src_mask */
25dbc73a 1439 0, /* dst_mask */
7619e7c7
AM
1440 FALSE), /* pcrel_offset */
1441
25dbc73a
AM
1442 /* Phony reloc to handle AIX style TOC entries. */
1443 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1444 0, /* rightshift */
1445 1, /* size (0 = byte, 1 = short, 2 = long) */
1446 16, /* bitsize */
1447 FALSE, /* pc_relative */
1448 0, /* bitpos */
25dbc73a 1449 complain_overflow_signed, /* complain_on_overflow */
7619e7c7 1450 bfd_elf_generic_reloc, /* special_function */
25dbc73a 1451 "R_PPC_TOC16", /* name */
7619e7c7
AM
1452 FALSE, /* partial_inplace */
1453 0, /* src_mask */
1454 0xffff, /* dst_mask */
1455 FALSE), /* pcrel_offset */
25dbc73a
AM
1456};
1457\f
1458/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1459
1460static void
1461ppc_elf_howto_init (void)
1462{
1463 unsigned int i, type;
1464
1465 for (i = 0;
1466 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1467 i++)
1468 {
1469 type = ppc_elf_howto_raw[i].type;
1470 if (type >= (sizeof (ppc_elf_howto_table)
1471 / sizeof (ppc_elf_howto_table[0])))
1472 abort ();
1473 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1474 }
1475}
1476
1477static reloc_howto_type *
1478ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1479 bfd_reloc_code_real_type code)
1480{
1481 enum elf_ppc_reloc_type r;
1482
1483 /* Initialize howto table if not already done. */
1484 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1485 ppc_elf_howto_init ();
1486
1487 switch (code)
1488 {
1489 default:
1490 return NULL;
1491
1492 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1493 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1494 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1495 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1496 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1497 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1498 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1499 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1500 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1501 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1502 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1503 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1504 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1505 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1506 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1507 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1508 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1509 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1510 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1511 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1512 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1513 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1514 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1515 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1516 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1517 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1518 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1519 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1520 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1521 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1522 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1523 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1524 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1525 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1526 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1527 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1528 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1529 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1530 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1531 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1532 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1533 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1534 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1535 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1536 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1537 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1538 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1539 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1540 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1541 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1542 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1543 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1544 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1545 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1546 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1547 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1548 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1549 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1550 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1551 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1552 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1553 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1554 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1555 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1556 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1557 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1558 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1559 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1560 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1561 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1562 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1563 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1564 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1565 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1566 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1567 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1568 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1569 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1570 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
d7128ce4
AM
1571 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1572 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1573 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1574 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
25dbc73a
AM
1575 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1576 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1577 }
1578
1579 return ppc_elf_howto_table[r];
1580};
1581
157090f7
AM
1582static reloc_howto_type *
1583ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1584 const char *r_name)
1585{
1586 unsigned int i;
1587
1588 for (i = 0;
1589 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1590 i++)
1591 if (ppc_elf_howto_raw[i].name != NULL
1592 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
1593 return &ppc_elf_howto_raw[i];
1594
1595 return NULL;
1596}
1597
25dbc73a
AM
1598/* Set the howto pointer for a PowerPC ELF reloc. */
1599
1600static void
1601ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1602 arelent *cache_ptr,
1603 Elf_Internal_Rela *dst)
1604{
1605 /* Initialize howto table if not already done. */
1606 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1607 ppc_elf_howto_init ();
1608
1609 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1610 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
375de94a
AM
1611
1612 /* Just because the above assert didn't trigger doesn't mean that
1613 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
1614 if (!cache_ptr->howto)
1615 {
1616 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
1617 abfd, ELF32_R_TYPE (dst->r_info));
1618 bfd_set_error (bfd_error_bad_value);
1619
1620 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
1621 }
25dbc73a
AM
1622}
1623
d7128ce4 1624/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
1625
1626static bfd_reloc_status_type
1627ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1628 arelent *reloc_entry,
1629 asymbol *symbol,
1630 void *data ATTRIBUTE_UNUSED,
1631 asection *input_section,
1632 bfd *output_bfd,
1633 char **error_message ATTRIBUTE_UNUSED)
1634{
1635 bfd_vma relocation;
1636
1637 if (output_bfd != NULL)
1638 {
1639 reloc_entry->address += input_section->output_offset;
1640 return bfd_reloc_ok;
1641 }
1642
1643 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1644 return bfd_reloc_outofrange;
1645
1646 if (bfd_is_com_section (symbol->section))
1647 relocation = 0;
1648 else
1649 relocation = symbol->value;
1650
1651 relocation += symbol->section->output_section->vma;
1652 relocation += symbol->section->output_offset;
1653 relocation += reloc_entry->addend;
d7128ce4
AM
1654 if (reloc_entry->howto->pc_relative)
1655 relocation -= reloc_entry->address;
25dbc73a
AM
1656
1657 reloc_entry->addend += (relocation & 0x8000) << 1;
1658
1659 return bfd_reloc_continue;
1660}
1661
1662static bfd_reloc_status_type
1663ppc_elf_unhandled_reloc (bfd *abfd,
1664 arelent *reloc_entry,
1665 asymbol *symbol,
1666 void *data,
1667 asection *input_section,
1668 bfd *output_bfd,
1669 char **error_message)
1670{
1671 /* If this is a relocatable link (output_bfd test tells us), just
1672 call the generic function. Any adjustment will be done at final
1673 link time. */
1674 if (output_bfd != NULL)
1675 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1676 input_section, output_bfd, error_message);
1677
1678 if (error_message != NULL)
1679 {
1680 static char buf[60];
1681 sprintf (buf, _("generic linker can't handle %s"),
1682 reloc_entry->howto->name);
1683 *error_message = buf;
1684 }
1685 return bfd_reloc_dangerous;
1686}
1687\f
1688/* Sections created by the linker. */
1689
1690typedef struct elf_linker_section
1691{
c9a2f333 1692 /* Pointer to the bfd section. */
25dbc73a 1693 asection *section;
c9a2f333
AM
1694 /* Section name. */
1695 const char *name;
1696 /* Associated bss section name. */
1697 const char *bss_name;
1698 /* Associated symbol name. */
1699 const char *sym_name;
046183de
AM
1700 /* Associated symbol. */
1701 struct elf_link_hash_entry *sym;
25dbc73a
AM
1702} elf_linker_section_t;
1703
1704/* Linked list of allocated pointer entries. This hangs off of the
1705 symbol lists, and provides allows us to return different pointers,
1706 based on different addend's. */
1707
1708typedef struct elf_linker_section_pointers
1709{
1710 /* next allocated pointer for this symbol */
1711 struct elf_linker_section_pointers *next;
1712 /* offset of pointer from beginning of section */
1713 bfd_vma offset;
1714 /* addend used */
1715 bfd_vma addend;
1716 /* which linker section this is */
1717 elf_linker_section_t *lsect;
25dbc73a
AM
1718} elf_linker_section_pointers_t;
1719
1720struct ppc_elf_obj_tdata
1721{
1722 struct elf_obj_tdata elf;
1723
1724 /* A mapping from local symbols to offsets into the various linker
1725 sections added. This is index by the symbol index. */
1726 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
1727
1728 /* Flags used to auto-detect plt type. */
1729 unsigned int makes_plt_call : 1;
1730 unsigned int has_rel16 : 1;
25dbc73a
AM
1731};
1732
1733#define ppc_elf_tdata(bfd) \
1734 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 1735
25dbc73a
AM
1736#define elf_local_ptr_offsets(bfd) \
1737 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 1738
0c8d6e5c
AM
1739#define is_ppc_elf(bfd) \
1740 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
1741 && elf_object_id (bfd) == PPC32_ELF_TDATA)
1742
25dbc73a 1743/* Override the generic function because we store some extras. */
7619e7c7 1744
25dbc73a
AM
1745static bfd_boolean
1746ppc_elf_mkobject (bfd *abfd)
1747{
0ffa91dd
NC
1748 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
1749 PPC32_ELF_TDATA);
25dbc73a 1750}
7619e7c7 1751
25dbc73a
AM
1752/* Fix bad default arch selected for a 32 bit input bfd when the
1753 default is 64 bit. */
7619e7c7 1754
25dbc73a
AM
1755static bfd_boolean
1756ppc_elf_object_p (bfd *abfd)
1757{
1758 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1759 {
1760 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 1761
25dbc73a
AM
1762 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1763 {
1764 /* Relies on arch after 64 bit default being 32 bit default. */
1765 abfd->arch_info = abfd->arch_info->next;
1766 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1767 }
1768 }
1769 return TRUE;
1770}
7619e7c7 1771
25dbc73a 1772/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 1773
25dbc73a
AM
1774static bfd_boolean
1775ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1776{
1777 BFD_ASSERT (!elf_flags_init (abfd)
1778 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 1779
25dbc73a
AM
1780 elf_elfheader (abfd)->e_flags = flags;
1781 elf_flags_init (abfd) = TRUE;
1782 return TRUE;
1783}
1784
25dbc73a 1785/* Support for core dump NOTE sections. */
deaaf2f3 1786
b34976b6 1787static bfd_boolean
25dbc73a 1788ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 1789{
25dbc73a
AM
1790 int offset;
1791 unsigned int size;
252b5132 1792
25dbc73a
AM
1793 switch (note->descsz)
1794 {
1795 default:
1796 return FALSE;
252b5132 1797
25dbc73a
AM
1798 case 268: /* Linux/PPC. */
1799 /* pr_cursig */
1800 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 1801
25dbc73a
AM
1802 /* pr_pid */
1803 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 1804
25dbc73a
AM
1805 /* pr_reg */
1806 offset = 72;
1807 size = 192;
deaaf2f3 1808
25dbc73a
AM
1809 break;
1810 }
deaaf2f3 1811
25dbc73a
AM
1812 /* Make a ".reg/999" section. */
1813 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1814 size, note->descpos + offset);
1815}
252b5132 1816
25dbc73a
AM
1817static bfd_boolean
1818ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1819{
1820 switch (note->descsz)
deaaf2f3 1821 {
25dbc73a
AM
1822 default:
1823 return FALSE;
deaaf2f3 1824
25dbc73a
AM
1825 case 128: /* Linux/PPC elf_prpsinfo. */
1826 elf_tdata (abfd)->core_program
1827 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1828 elf_tdata (abfd)->core_command
1829 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1830 }
9abc968f 1831
25dbc73a
AM
1832 /* Note that for some reason, a spurious space is tacked
1833 onto the end of the args in some (at least one anyway)
1834 implementations, so strip it off if it exists. */
70bccea4 1835
25dbc73a
AM
1836 {
1837 char *command = elf_tdata (abfd)->core_command;
1838 int n = strlen (command);
70bccea4 1839
25dbc73a
AM
1840 if (0 < n && command[n - 1] == ' ')
1841 command[n - 1] = '\0';
1842 }
deaaf2f3 1843
25dbc73a
AM
1844 return TRUE;
1845}
deaaf2f3 1846
183e98be
AM
1847static char *
1848ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1849{
1850 switch (note_type)
1851 {
1852 default:
1853 return NULL;
1854
1855 case NT_PRPSINFO:
1856 {
1857 char data[128];
1858 va_list ap;
1859
1860 va_start (ap, note_type);
1861 memset (data, 0, 32);
1862 strncpy (data + 32, va_arg (ap, const char *), 16);
1863 strncpy (data + 48, va_arg (ap, const char *), 80);
1864 va_end (ap);
1865 return elfcore_write_note (abfd, buf, bufsiz,
1866 "CORE", note_type, data, sizeof (data));
1867 }
1868
1869 case NT_PRSTATUS:
1870 {
1871 char data[268];
1872 va_list ap;
1873 long pid;
1874 int cursig;
1875 const void *greg;
1876
1877 va_start (ap, note_type);
1878 memset (data, 0, 72);
1879 pid = va_arg (ap, long);
1880 bfd_put_32 (abfd, pid, data + 24);
1881 cursig = va_arg (ap, int);
1882 bfd_put_16 (abfd, cursig, data + 12);
1883 greg = va_arg (ap, const void *);
1884 memcpy (data + 72, greg, 192);
1885 memset (data + 264, 0, 4);
1886 va_end (ap);
1887 return elfcore_write_note (abfd, buf, bufsiz,
1888 "CORE", note_type, data, sizeof (data));
1889 }
1890 }
1891}
1892
25dbc73a
AM
1893/* Return address for Ith PLT stub in section PLT, for relocation REL
1894 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 1895
25dbc73a
AM
1896static bfd_vma
1897ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1898 const asection *plt ATTRIBUTE_UNUSED,
1899 const arelent *rel)
1900{
1901 return rel->address;
1902}
deaaf2f3 1903
25dbc73a 1904/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
1905 is called when bfd_section_from_shdr finds a section with an unknown
1906 type. */
deaaf2f3 1907
25dbc73a 1908static bfd_boolean
6dc132d9
L
1909ppc_elf_section_from_shdr (bfd *abfd,
1910 Elf_Internal_Shdr *hdr,
1911 const char *name,
1912 int shindex)
25dbc73a
AM
1913{
1914 asection *newsect;
1915 flagword flags;
d1c6de6f 1916
6dc132d9 1917 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 1918 return FALSE;
deaaf2f3 1919
25dbc73a
AM
1920 newsect = hdr->bfd_section;
1921 flags = bfd_get_section_flags (abfd, newsect);
1922 if (hdr->sh_flags & SHF_EXCLUDE)
1923 flags |= SEC_EXCLUDE;
9abc968f 1924
25dbc73a
AM
1925 if (hdr->sh_type == SHT_ORDERED)
1926 flags |= SEC_SORT_ENTRIES;
d1c6de6f 1927
25dbc73a
AM
1928 bfd_set_section_flags (abfd, newsect, flags);
1929 return TRUE;
1930}
1931
1932/* Set up any other section flags and such that may be necessary. */
1933
1934static bfd_boolean
1935ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1936 Elf_Internal_Shdr *shdr,
1937 asection *asect)
1938{
d30e8e7c 1939 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
25dbc73a
AM
1940 shdr->sh_flags |= SHF_EXCLUDE;
1941
1942 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1943 shdr->sh_type = SHT_ORDERED;
1944
1945 return TRUE;
1946}
1947
1948/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1949 need to bump up the number of section headers. */
1950
1951static int
a6b96beb
AM
1952ppc_elf_additional_program_headers (bfd *abfd,
1953 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
1954{
1955 asection *s;
1956 int ret = 0;
d1c6de6f 1957
25dbc73a
AM
1958 s = bfd_get_section_by_name (abfd, ".sbss2");
1959 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1960 ++ret;
d1c6de6f 1961
25dbc73a
AM
1962 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1963 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1964 ++ret;
deaaf2f3 1965
25dbc73a
AM
1966 return ret;
1967}
deaaf2f3 1968
25dbc73a
AM
1969/* Add extra PPC sections -- Note, for now, make .sbss2 and
1970 .PPC.EMB.sbss0 a normal section, and not a bss section so
1971 that the linker doesn't crater when trying to make more than
1972 2 sections. */
e656e369 1973
b35d266b 1974static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 1975{
0112cd26
NC
1976 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
1977 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
1978 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
1979 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1980 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
1981 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
1982 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
1983 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
1984 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
1985 { NULL, 0, 0, 0, 0 }
7f4d3958
L
1986};
1987
551b43fd
AM
1988/* This is what we want for new plt/got. */
1989static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 1990 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
1991
1992static const struct bfd_elf_special_section *
1993ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 1994{
b35d266b 1995 const struct bfd_elf_special_section *ssect;
551b43fd
AM
1996
1997 /* See if this is one of the special sections. */
1998 if (sec->name == NULL)
1999 return NULL;
2000
2001 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2002 sec->use_rela_p);
2003 if (ssect != NULL)
2004 {
2005 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2006 ssect = &ppc_alt_plt;
2007 return ssect;
2008 }
2009
2010 return _bfd_elf_get_sec_type_attr (abfd, sec);
2011}
25dbc73a
AM
2012\f
2013/* Very simple linked list structure for recording apuinfo values. */
2014typedef struct apuinfo_list
2015{
2016 struct apuinfo_list *next;
2017 unsigned long value;
2018}
2019apuinfo_list;
e656e369 2020
25dbc73a 2021static apuinfo_list *head;
deaaf2f3 2022
deaaf2f3 2023
25dbc73a
AM
2024static void
2025apuinfo_list_init (void)
2026{
2027 head = NULL;
2028}
9abc968f 2029
25dbc73a
AM
2030static void
2031apuinfo_list_add (unsigned long value)
2032{
2033 apuinfo_list *entry = head;
deaaf2f3 2034
25dbc73a
AM
2035 while (entry != NULL)
2036 {
2037 if (entry->value == value)
2038 return;
2039 entry = entry->next;
2040 }
b4a38de6 2041
25dbc73a
AM
2042 entry = bfd_malloc (sizeof (* entry));
2043 if (entry == NULL)
2044 return;
e656e369 2045
25dbc73a
AM
2046 entry->value = value;
2047 entry->next = head;
2048 head = entry;
2049}
9abc968f 2050
25dbc73a
AM
2051static unsigned
2052apuinfo_list_length (void)
2053{
2054 apuinfo_list *entry;
2055 unsigned long count;
9abc968f 2056
25dbc73a
AM
2057 for (entry = head, count = 0;
2058 entry;
2059 entry = entry->next)
2060 ++ count;
e656e369 2061
25dbc73a
AM
2062 return count;
2063}
eea6121a 2064
25dbc73a
AM
2065static inline unsigned long
2066apuinfo_list_element (unsigned long number)
2067{
2068 apuinfo_list * entry;
e656e369 2069
25dbc73a
AM
2070 for (entry = head;
2071 entry && number --;
2072 entry = entry->next)
2073 ;
252b5132 2074
25dbc73a
AM
2075 return entry ? entry->value : 0;
2076}
2077
2078static void
2079apuinfo_list_finish (void)
2080{
2081 apuinfo_list *entry;
2082
2083 for (entry = head; entry;)
252b5132 2084 {
25dbc73a
AM
2085 apuinfo_list *next = entry->next;
2086 free (entry);
2087 entry = next;
2088 }
9abc968f 2089
25dbc73a
AM
2090 head = NULL;
2091}
9abc968f 2092
25dbc73a
AM
2093#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2094#define APUINFO_LABEL "APUinfo"
9abc968f 2095
25dbc73a
AM
2096/* Scan the input BFDs and create a linked list of
2097 the APUinfo values that will need to be emitted. */
9abc968f 2098
25dbc73a
AM
2099static void
2100ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2101{
2102 bfd *ibfd;
2103 asection *asec;
2104 char *buffer;
2105 unsigned num_input_sections;
2106 bfd_size_type output_section_size;
2107 unsigned i;
2108 unsigned num_entries;
2109 unsigned long offset;
2110 unsigned long length;
2111 const char *error_message = NULL;
9abc968f 2112
25dbc73a
AM
2113 if (link_info == NULL)
2114 return;
9abc968f 2115
25dbc73a
AM
2116 /* Scan the input bfds, looking for apuinfo sections. */
2117 num_input_sections = 0;
2118 output_section_size = 0;
252b5132 2119
25dbc73a 2120 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2121 {
25dbc73a
AM
2122 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2123 if (asec)
252b5132 2124 {
25dbc73a
AM
2125 ++ num_input_sections;
2126 output_section_size += asec->size;
252b5132 2127 }
252b5132
RH
2128 }
2129
25dbc73a
AM
2130 /* We need at least one input sections
2131 in order to make merging worthwhile. */
2132 if (num_input_sections < 1)
2133 return;
deaaf2f3 2134
25dbc73a
AM
2135 /* Just make sure that the output section exists as well. */
2136 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2137 if (asec == NULL)
2138 return;
252b5132 2139
25dbc73a
AM
2140 /* Allocate a buffer for the contents of the input sections. */
2141 buffer = bfd_malloc (output_section_size);
2142 if (buffer == NULL)
2143 return;
252b5132 2144
25dbc73a
AM
2145 offset = 0;
2146 apuinfo_list_init ();
252b5132 2147
25dbc73a
AM
2148 /* Read in the input sections contents. */
2149 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2150 {
25dbc73a
AM
2151 unsigned long datum;
2152 char *ptr;
252b5132 2153
25dbc73a
AM
2154 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2155 if (asec == NULL)
2156 continue;
252b5132 2157
25dbc73a
AM
2158 length = asec->size;
2159 if (length < 24)
2160 {
2161 error_message = _("corrupt or empty %s section in %B");
2162 goto fail;
2163 }
252b5132 2164
25dbc73a
AM
2165 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2166 || (bfd_bread (buffer + offset, length, ibfd) != length))
2167 {
2168 error_message = _("unable to read in %s section from %B");
2169 goto fail;
2170 }
252b5132 2171
25dbc73a
AM
2172 /* Process the contents of the section. */
2173 ptr = buffer + offset;
2174 error_message = _("corrupt %s section in %B");
252b5132 2175
25dbc73a
AM
2176 /* Verify the contents of the header. Note - we have to
2177 extract the values this way in order to allow for a
2178 host whose endian-ness is different from the target. */
2179 datum = bfd_get_32 (ibfd, ptr);
2180 if (datum != sizeof APUINFO_LABEL)
2181 goto fail;
252b5132 2182
25dbc73a
AM
2183 datum = bfd_get_32 (ibfd, ptr + 8);
2184 if (datum != 0x2)
2185 goto fail;
252b5132 2186
25dbc73a
AM
2187 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2188 goto fail;
252b5132 2189
25dbc73a
AM
2190 /* Get the number of bytes used for apuinfo entries. */
2191 datum = bfd_get_32 (ibfd, ptr + 4);
2192 if (datum + 20 != length)
2193 goto fail;
2194
2195 /* Make sure that we do not run off the end of the section. */
2196 if (offset + length > output_section_size)
2197 goto fail;
2198
2199 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2200 for (i = 0; i < datum; i += 4)
2201 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2202
2203 /* Update the offset. */
2204 offset += length;
252b5132
RH
2205 }
2206
25dbc73a 2207 error_message = NULL;
252b5132 2208
25dbc73a
AM
2209 /* Compute the size of the output section. */
2210 num_entries = apuinfo_list_length ();
2211 output_section_size = 20 + num_entries * 4;
252b5132 2212
25dbc73a
AM
2213 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2214
2215 if (! bfd_set_section_size (abfd, asec, output_section_size))
2216 ibfd = abfd,
2217 error_message = _("warning: unable to set size of %s section in %B");
2218
2219 fail:
2220 free (buffer);
2221
2222 if (error_message)
2223 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2224}
252b5132 2225
25dbc73a
AM
2226/* Prevent the output section from accumulating the input sections'
2227 contents. We have already stored this in our linked list structure. */
252b5132 2228
25dbc73a
AM
2229static bfd_boolean
2230ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2231 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2232 asection *asec,
2233 bfd_byte *contents ATTRIBUTE_UNUSED)
2234{
2235 return (apuinfo_list_length ()
2236 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
252b5132
RH
2237}
2238
25dbc73a
AM
2239/* Finally we can generate the output section. */
2240
2241static void
2242ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2243{
25dbc73a
AM
2244 bfd_byte *buffer;
2245 asection *asec;
2246 unsigned i;
2247 unsigned num_entries;
2248 bfd_size_type length;
7619e7c7 2249
25dbc73a
AM
2250 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2251 if (asec == NULL)
2252 return;
2253
2254 if (apuinfo_list_length () == 0)
2255 return;
2256
2257 length = asec->size;
2258 if (length < 20)
2259 return;
2260
2261 buffer = bfd_malloc (length);
2262 if (buffer == NULL)
7619e7c7 2263 {
25dbc73a
AM
2264 (*_bfd_error_handler)
2265 (_("failed to allocate space for new APUinfo section."));
2266 return;
7619e7c7 2267 }
7619e7c7 2268
25dbc73a
AM
2269 /* Create the apuinfo header. */
2270 num_entries = apuinfo_list_length ();
2271 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2272 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2273 bfd_put_32 (abfd, 0x2, buffer + 8);
2274 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2275
25dbc73a
AM
2276 length = 20;
2277 for (i = 0; i < num_entries; i++)
feee612b 2278 {
25dbc73a
AM
2279 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2280 length += 4;
feee612b 2281 }
feee612b 2282
25dbc73a
AM
2283 if (length != asec->size)
2284 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2285
25dbc73a
AM
2286 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2287 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2288
25dbc73a
AM
2289 free (buffer);
2290
2291 apuinfo_list_finish ();
252b5132 2292}
25dbc73a 2293\f
7382d32a
AM
2294static bfd_boolean
2295is_pic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
2296{
2297 bfd_byte buf[16];
2298 unsigned int insn;
2299
2300 if (!bfd_get_section_contents (abfd, glink, buf, off, 16))
2301 return FALSE;
2302
2303 insn = bfd_get_32 (abfd, buf);
2304 if ((insn & 0xffff0000) == LWZ_11_30
2305 && bfd_get_32 (abfd, buf + 4) == MTCTR_11
2306 && bfd_get_32 (abfd, buf + 8) == BCTR)
2307 return TRUE;
2308
2309 if ((insn & 0xffff0000) == ADDIS_11_30
2310 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2311 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2312 && bfd_get_32 (abfd, buf + 12) == BCTR)
2313 return TRUE;
2314 return FALSE;
2315}
2316
468392fb
AM
2317static bfd_boolean
2318section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2319{
2320 bfd_vma vma = *(bfd_vma *) ptr;
2321 return ((section->flags & SEC_ALLOC) != 0
2322 && section->vma <= vma
2323 && vma < section->vma + section->size);
2324}
2325
2326static long
2327ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2328 long dynsymcount, asymbol **dynsyms,
2329 asymbol **ret)
2330{
2331 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2332 asection *plt, *relplt, *dynamic, *glink;
2333 bfd_vma glink_vma = 0;
2334 bfd_vma resolv_vma = 0;
2335 bfd_vma stub_vma;
2336 asymbol *s;
2337 arelent *p;
2338 long count, i;
2339 size_t size;
2340 char *names;
2341 bfd_byte buf[4];
2342
2343 *ret = NULL;
2344
2345 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2346 return 0;
2347
2348 if (dynsymcount <= 0)
2349 return 0;
2350
2351 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2352 if (relplt == NULL)
2353 return 0;
2354
2355 plt = bfd_get_section_by_name (abfd, ".plt");
2356 if (plt == NULL)
2357 return 0;
2358
2359 /* Call common code to handle old-style executable PLTs. */
2360 if (elf_section_flags (plt) & SHF_EXECINSTR)
2361 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2362 dynsymcount, dynsyms, ret);
2363
2364 /* If this object was prelinked, the prelinker stored the address
2365 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2366 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2367 if (dynamic != NULL)
2368 {
2369 bfd_byte *dynbuf, *extdyn, *extdynend;
2370 size_t extdynsize;
2371 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2372
2373 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2374 return -1;
2375
2376 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2377 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2378
2379 extdyn = dynbuf;
2380 extdynend = extdyn + dynamic->size;
2381 for (; extdyn < extdynend; extdyn += extdynsize)
2382 {
2383 Elf_Internal_Dyn dyn;
2384 (*swap_dyn_in) (abfd, extdyn, &dyn);
2385
2386 if (dyn.d_tag == DT_NULL)
2387 break;
2388
2389 if (dyn.d_tag == DT_PPC_GOT)
2390 {
2391 unsigned int g_o_t = dyn.d_un.d_val;
2392 asection *got = bfd_get_section_by_name (abfd, ".got");
2393 if (got != NULL
2394 && bfd_get_section_contents (abfd, got, buf,
2395 g_o_t - got->vma + 4, 4))
2396 glink_vma = bfd_get_32 (abfd, buf);
2397 break;
2398 }
2399 }
2400 free (dynbuf);
2401 }
2402
2403 /* Otherwise we read the first plt entry. */
2404 if (glink_vma == 0)
2405 {
2406 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2407 glink_vma = bfd_get_32 (abfd, buf);
2408 }
2409
2410 if (glink_vma == 0)
2411 return 0;
2412
2413 /* The .glink section usually does not survive the final
2414 link; search for the section (usually .text) where the
2415 glink stubs now reside. */
2416 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2417 if (glink == NULL)
2418 return 0;
2419
2420 /* Determine glink PLT resolver by reading the relative branch
2421 from the first glink stub. */
2422 if (bfd_get_section_contents (abfd, glink, buf,
2423 glink_vma - glink->vma, 4))
2424 {
2425 unsigned int insn = bfd_get_32 (abfd, buf);
2426
2427 /* The first glink stub may either branch to the resolver ... */
2428 insn ^= B;
2429 if ((insn & ~0x3fffffc) == 0)
2430 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2431
2432 /* ... or fall through a bunch of NOPs. */
2433 else if ((insn ^ B ^ NOP) == 0)
2434 for (i = 4;
2435 bfd_get_section_contents (abfd, glink, buf,
2436 glink_vma - glink->vma + i, 4);
2437 i += 4)
2438 if (bfd_get_32 (abfd, buf) != NOP)
2439 {
2440 resolv_vma = glink_vma + i;
2441 break;
2442 }
2443 }
2444
7382d32a
AM
2445 count = relplt->size / sizeof (Elf32_External_Rela);
2446 stub_vma = glink_vma - (bfd_vma) count * 16;
2447 /* If the stubs are those for -shared/-pie then we might have
2448 multiple stubs for each plt entry. If that is the case then
2449 there is no way to associate stubs with their plt entries short
2450 of figuring out the GOT pointer value used in the stub. */
2451 if (!bfd_get_section_contents (abfd, glink, buf,
2452 stub_vma - glink->vma, 4)
2453 || ((bfd_get_32 (abfd, buf) & 0xffff0000) != LIS_11
2454 && is_pic_glink_stub (abfd, glink, stub_vma - glink->vma - 16)))
2455 return 0;
2456
468392fb
AM
2457 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2458 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2459 return -1;
2460
468392fb
AM
2461 size = count * sizeof (asymbol);
2462 p = relplt->relocation;
2463 for (i = 0; i < count; i++, p++)
2464 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2465
2466 size += sizeof (asymbol) + sizeof ("__glink");
2467
2468 if (resolv_vma)
2469 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2470
2471 s = *ret = bfd_malloc (size);
2472 if (s == NULL)
2473 return -1;
2474
2475 names = (char *) (s + count + 1 + (resolv_vma != 0));
2476 p = relplt->relocation;
2477 for (i = 0; i < count; i++, p++)
2478 {
2479 size_t len;
2480
2481 *s = **p->sym_ptr_ptr;
2482 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2483 we are defining a symbol, ensure one of them is set. */
2484 if ((s->flags & BSF_LOCAL) == 0)
2485 s->flags |= BSF_GLOBAL;
6ba2a415 2486 s->flags |= BSF_SYNTHETIC;
468392fb
AM
2487 s->section = glink;
2488 s->value = stub_vma - glink->vma;
2489 s->name = names;
2490 s->udata.p = NULL;
2491 len = strlen ((*p->sym_ptr_ptr)->name);
2492 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2493 names += len;
2494 memcpy (names, "@plt", sizeof ("@plt"));
2495 names += sizeof ("@plt");
2496 ++s;
2497 stub_vma += 16;
2498 }
2499
2500 /* Add a symbol at the start of the glink branch table. */
86a4952b 2501 memset (s, 0, sizeof *s);
468392fb 2502 s->the_bfd = abfd;
6ba2a415 2503 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
2504 s->section = glink;
2505 s->value = glink_vma - glink->vma;
2506 s->name = names;
2507 memcpy (names, "__glink", sizeof ("__glink"));
2508 names += sizeof ("__glink");
2509 s++;
2510 count++;
2511
2512 if (resolv_vma)
2513 {
2514 /* Add a symbol for the glink PLT resolver. */
86a4952b 2515 memset (s, 0, sizeof *s);
468392fb 2516 s->the_bfd = abfd;
6ba2a415 2517 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
2518 s->section = glink;
2519 s->value = resolv_vma - glink->vma;
2520 s->name = names;
2521 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
2522 names += sizeof ("__glink_PLTresolve");
2523 s++;
2524 count++;
2525 }
2526
2527 return count;
2528}
2529\f
25dbc73a
AM
2530/* The following functions are specific to the ELF linker, while
2531 functions above are used generally. They appear in this file more
2532 or less in the order in which they are called. eg.
2533 ppc_elf_check_relocs is called early in the link process,
2534 ppc_elf_finish_dynamic_sections is one of the last functions
2535 called. */
252b5132 2536
25dbc73a
AM
2537/* The PPC linker needs to keep track of the number of relocs that it
2538 decides to copy as dynamic relocs in check_relocs for each symbol.
2539 This is so that it can later discard them if they are found to be
2540 unnecessary. We store the information in a field extending the
2541 regular ELF linker hash table. */
ae9a127f 2542
25dbc73a 2543struct ppc_elf_dyn_relocs
252b5132 2544{
25dbc73a 2545 struct ppc_elf_dyn_relocs *next;
252b5132 2546
25dbc73a
AM
2547 /* The input section of the reloc. */
2548 asection *sec;
252b5132 2549
25dbc73a
AM
2550 /* Total number of relocs copied for the input section. */
2551 bfd_size_type count;
252b5132 2552
25dbc73a
AM
2553 /* Number of pc-relative relocs copied for the input section. */
2554 bfd_size_type pc_count;
2555};
252b5132 2556
a6aa5195
AM
2557/* Track PLT entries needed for a given symbol. We might need more
2558 than one glink entry per symbol. */
2559struct plt_entry
2560{
2561 struct plt_entry *next;
2562
2563 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2564 This field stores the offset into .got2 used to initialise the
2565 GOT pointer reg. It will always be at least 32768 (and for
2566 current gcc this is the only offset used). */
2567 bfd_vma addend;
2568
2569 /* The .got2 section. */
2570 asection *sec;
2571
2572 /* PLT refcount or offset. */
2573 union
2574 {
2575 bfd_signed_vma refcount;
2576 bfd_vma offset;
2577 } plt;
2578
2579 /* .glink stub offset. */
2580 bfd_vma glink_offset;
2581};
2582
1d483afe 2583/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
2584 selects those that must be copied when linking a shared library,
2585 even when the symbol is local. */
252b5132 2586
1d483afe
AM
2587static int
2588must_be_dyn_reloc (struct bfd_link_info *info,
2589 enum elf_ppc_reloc_type r_type)
2590{
2591 switch (r_type)
2592 {
2593 default:
2594 return 1;
2595
2596 case R_PPC_REL24:
2597 case R_PPC_REL14:
2598 case R_PPC_REL14_BRTAKEN:
2599 case R_PPC_REL14_BRNTAKEN:
2600 case R_PPC_REL32:
2601 return 0;
2602
2603 case R_PPC_TPREL32:
2604 case R_PPC_TPREL16:
2605 case R_PPC_TPREL16_LO:
2606 case R_PPC_TPREL16_HI:
2607 case R_PPC_TPREL16_HA:
2608 return !info->executable;
2609 }
2610}
252b5132 2611
25dbc73a
AM
2612/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2613 copying dynamic variables from a shared lib into an app's dynbss
2614 section, and instead use a dynamic relocation to point into the
2615 shared lib. */
2616#define ELIMINATE_COPY_RELOCS 1
252b5132 2617
25dbc73a 2618/* PPC ELF linker hash entry. */
252b5132 2619
25dbc73a
AM
2620struct ppc_elf_link_hash_entry
2621{
2622 struct elf_link_hash_entry elf;
252b5132 2623
25dbc73a
AM
2624 /* If this symbol is used in the linker created sections, the processor
2625 specific backend uses this field to map the field into the offset
2626 from the beginning of the section. */
2627 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2628
25dbc73a
AM
2629 /* Track dynamic relocs copied for this symbol. */
2630 struct ppc_elf_dyn_relocs *dyn_relocs;
252b5132 2631
25dbc73a
AM
2632 /* Contexts in which symbol is used in the GOT (or TOC).
2633 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2634 corresponding relocs are encountered during check_relocs.
2635 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2636 indicate the corresponding GOT entry type is not needed. */
2637#define TLS_GD 1 /* GD reloc. */
2638#define TLS_LD 2 /* LD reloc. */
2639#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2640#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2641#define TLS_TLS 16 /* Any TLS reloc. */
2642#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2643 char tls_mask;
4dc4a9a5
DJ
2644
2645 /* Nonzero if we have seen a small data relocation referring to this
2646 symbol. */
2647 unsigned char has_sda_refs;
25dbc73a 2648};
252b5132 2649
25dbc73a
AM
2650#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2651
2652/* PPC ELF linker hash table. */
2653
2654struct ppc_elf_link_hash_table
2655{
2656 struct elf_link_hash_table elf;
2657
2658 /* Short-cuts to get to dynamic linker sections. */
2659 asection *got;
2660 asection *relgot;
d7128ce4 2661 asection *glink;
25dbc73a
AM
2662 asection *plt;
2663 asection *relplt;
2664 asection *dynbss;
2665 asection *relbss;
2666 asection *dynsbss;
2667 asection *relsbss;
c9a2f333 2668 elf_linker_section_t sdata[2];
25dbc73a
AM
2669 asection *sbss;
2670
016687f8
AM
2671 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2672 asection *srelplt2;
2673
2674 /* The .got.plt section (VxWorks only)*/
2675 asection *sgotplt;
2676
1d483afe 2677 /* Shortcut to __tls_get_addr. */
25dbc73a 2678 struct elf_link_hash_entry *tls_get_addr;
252b5132 2679
016687f8
AM
2680 /* The bfd that forced an old-style PLT. */
2681 bfd *old_bfd;
2682
25dbc73a
AM
2683 /* TLS local dynamic got entry handling. */
2684 union {
2685 bfd_signed_vma refcount;
2686 bfd_vma offset;
2687 } tlsld_got;
252b5132 2688
d7128ce4
AM
2689 /* Offset of PltResolve function in glink. */
2690 bfd_vma glink_pltresolve;
2691
3b36f7e6
AM
2692 /* Size of reserved GOT entries. */
2693 unsigned int got_header_size;
2694 /* Non-zero if allocating the header left a gap. */
2695 unsigned int got_gap;
2696
4a3dc543
RS
2697 /* The type of PLT we have chosen to use. */
2698 enum ppc_elf_plt_type plt_type;
2699
0ba07910
AM
2700 /* Set if we should emit symbols for stubs. */
2701 unsigned int emit_stub_syms:1;
2702
9d8504b1 2703 /* True if the target system is VxWorks. */
016687f8 2704 unsigned int is_vxworks:1;
9d8504b1
PB
2705
2706 /* The size of PLT entries. */
2707 int plt_entry_size;
2708 /* The distance between adjacent PLT slots. */
2709 int plt_slot_size;
2710 /* The size of the first PLT entry. */
2711 int plt_initial_entry_size;
016687f8
AM
2712
2713 /* Small local sym to section mapping cache. */
2714 struct sym_sec_cache sym_sec;
25dbc73a 2715};
252b5132 2716
25dbc73a 2717/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2718
25dbc73a
AM
2719#define ppc_elf_hash_table(p) \
2720 ((struct ppc_elf_link_hash_table *) (p)->hash)
252b5132 2721
25dbc73a 2722/* Create an entry in a PPC ELF linker hash table. */
252b5132 2723
25dbc73a
AM
2724static struct bfd_hash_entry *
2725ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2726 struct bfd_hash_table *table,
2727 const char *string)
252b5132 2728{
25dbc73a
AM
2729 /* Allocate the structure if it has not already been allocated by a
2730 subclass. */
2731 if (entry == NULL)
2732 {
2733 entry = bfd_hash_allocate (table,
2734 sizeof (struct ppc_elf_link_hash_entry));
2735 if (entry == NULL)
2736 return entry;
2737 }
252b5132 2738
25dbc73a
AM
2739 /* Call the allocation method of the superclass. */
2740 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2741 if (entry != NULL)
2742 {
2743 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2744 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2745 ppc_elf_hash_entry (entry)->tls_mask = 0;
2746 }
252b5132 2747
25dbc73a 2748 return entry;
252b5132 2749}
3dab13f6 2750
25dbc73a 2751/* Create a PPC ELF linker hash table. */
3dab13f6 2752
25dbc73a
AM
2753static struct bfd_link_hash_table *
2754ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2755{
25dbc73a 2756 struct ppc_elf_link_hash_table *ret;
3dab13f6 2757
25dbc73a
AM
2758 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2759 if (ret == NULL)
2760 return NULL;
3dab13f6 2761
66eb6687
AM
2762 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2763 ppc_elf_link_hash_newfunc,
2764 sizeof (struct ppc_elf_link_hash_entry)))
3dab13f6 2765 {
25dbc73a
AM
2766 free (ret);
2767 return NULL;
2768 }
58111eb7 2769
a6aa5195
AM
2770 ret->elf.init_plt_refcount.refcount = 0;
2771 ret->elf.init_plt_refcount.glist = NULL;
2772 ret->elf.init_plt_offset.offset = 0;
2773 ret->elf.init_plt_offset.glist = NULL;
2774
c9a2f333
AM
2775 ret->sdata[0].name = ".sdata";
2776 ret->sdata[0].sym_name = "_SDA_BASE_";
2777 ret->sdata[0].bss_name = ".sbss";
2778
2779 ret->sdata[1].name = ".sdata2";
2780 ret->sdata[1].sym_name = "_SDA2_BASE_";
2781 ret->sdata[1].bss_name = ".sbss2";
2782
9d8504b1
PB
2783 ret->plt_entry_size = 12;
2784 ret->plt_slot_size = 8;
2785 ret->plt_initial_entry_size = 72;
9d8504b1 2786
25dbc73a
AM
2787 return &ret->elf.root;
2788}
3dab13f6 2789
9d8504b1 2790/* Create .got and the related sections. */
3dab13f6 2791
25dbc73a
AM
2792static bfd_boolean
2793ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2794{
2795 struct ppc_elf_link_hash_table *htab;
2796 asection *s;
2797 flagword flags;
3dab13f6 2798
25dbc73a
AM
2799 if (!_bfd_elf_create_got_section (abfd, info))
2800 return FALSE;
3dab13f6 2801
25dbc73a
AM
2802 htab = ppc_elf_hash_table (info);
2803 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2804 if (s == NULL)
2805 abort ();
3dab13f6 2806
9d8504b1
PB
2807 if (htab->is_vxworks)
2808 {
2809 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2810 if (!htab->sgotplt)
2811 abort ();
2812 }
2813 else
2814 {
2815 /* The powerpc .got has a blrl instruction in it. Mark it
2816 executable. */
2817 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2818 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2819 if (!bfd_set_section_flags (abfd, s, flags))
2820 return FALSE;
2821 }
3dab13f6 2822
3b36f7e6
AM
2823 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2824 | SEC_LINKER_CREATED | SEC_READONLY);
2825 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
25dbc73a 2826 if (!htab->relgot
25dbc73a
AM
2827 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2828 return FALSE;
3dab13f6 2829
25dbc73a
AM
2830 return TRUE;
2831}
3dab13f6 2832
25dbc73a
AM
2833/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2834 to output sections (just like _bfd_elf_create_dynamic_sections has
2835 to create .dynbss and .rela.bss). */
3dab13f6 2836
25dbc73a
AM
2837static bfd_boolean
2838ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2839{
2840 struct ppc_elf_link_hash_table *htab;
2841 asection *s;
2842 flagword flags;
3dab13f6 2843
25dbc73a 2844 htab = ppc_elf_hash_table (info);
3dab13f6 2845
25dbc73a
AM
2846 if (htab->got == NULL
2847 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
2848 return FALSE;
2849
25dbc73a
AM
2850 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2851 return FALSE;
3dab13f6 2852
d7128ce4
AM
2853 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2854 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2855
2856 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2857 htab->glink = s;
2858 if (s == NULL
2859 || !bfd_set_section_alignment (abfd, s, 4))
2860 return FALSE;
3dab13f6 2861
25dbc73a 2862 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM
2863 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2864 SEC_ALLOC | SEC_LINKER_CREATED);
2865 htab->dynsbss = s;
3496cb2a 2866 if (s == NULL)
25dbc73a 2867 return FALSE;
3dab13f6 2868
25dbc73a
AM
2869 if (! info->shared)
2870 {
2871 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
d7128ce4 2872 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2873 htab->relsbss = s;
25dbc73a 2874 if (s == NULL
25dbc73a
AM
2875 || ! bfd_set_section_alignment (abfd, s, 2))
2876 return FALSE;
2877 }
3dab13f6 2878
711de32c
RS
2879 if (htab->is_vxworks
2880 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2881 return FALSE;
9d8504b1 2882
25dbc73a
AM
2883 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2884 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2885 if (s == NULL)
2886 abort ();
3dab13f6 2887
3b36f7e6 2888 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
2889 if (htab->plt_type == PLT_VXWORKS)
2890 /* The VxWorks PLT is a loaded section with contents. */
2891 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
2892 return bfd_set_section_flags (abfd, s, flags);
2893}
3dab13f6 2894
25dbc73a 2895/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2896
25dbc73a 2897static void
fcfa13d2 2898ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
2899 struct elf_link_hash_entry *dir,
2900 struct elf_link_hash_entry *ind)
2901{
2902 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2903
25dbc73a
AM
2904 edir = (struct ppc_elf_link_hash_entry *) dir;
2905 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2906
25dbc73a
AM
2907 if (eind->dyn_relocs != NULL)
2908 {
2909 if (edir->dyn_relocs != NULL)
3dab13f6 2910 {
25dbc73a
AM
2911 struct ppc_elf_dyn_relocs **pp;
2912 struct ppc_elf_dyn_relocs *p;
3dab13f6 2913
fcfa13d2 2914 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
2915 list. Merge any entries against the same section. */
2916 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2917 {
25dbc73a
AM
2918 struct ppc_elf_dyn_relocs *q;
2919
2920 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2921 if (q->sec == p->sec)
2922 {
2923 q->pc_count += p->pc_count;
2924 q->count += p->count;
2925 *pp = p->next;
2926 break;
2927 }
2928 if (q == NULL)
2929 pp = &p->next;
3dab13f6 2930 }
25dbc73a 2931 *pp = edir->dyn_relocs;
3dab13f6 2932 }
25dbc73a
AM
2933
2934 edir->dyn_relocs = eind->dyn_relocs;
2935 eind->dyn_relocs = NULL;
3dab13f6 2936 }
3dab13f6 2937
25dbc73a 2938 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2939 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2940
a6aa5195
AM
2941 /* If called to transfer flags for a weakdef during processing
2942 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2943 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2944 if (!(ELIMINATE_COPY_RELOCS
2945 && eind->elf.root.type != bfd_link_hash_indirect
2946 && edir->elf.dynamic_adjusted))
2947 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2948
2949 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2950 edir->elf.ref_regular |= eind->elf.ref_regular;
2951 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2952 edir->elf.needs_plt |= eind->elf.needs_plt;
0eb4a168 2953 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
a6aa5195
AM
2954
2955 /* If we were called to copy over info for a weak sym, that's all. */
2956 if (eind->elf.root.type != bfd_link_hash_indirect)
2957 return;
2958
2959 /* Copy over the GOT refcount entries that we may have already seen to
2960 the symbol which just became indirect. */
fcfa13d2
AM
2961 edir->elf.got.refcount += eind->elf.got.refcount;
2962 eind->elf.got.refcount = 0;
a6aa5195
AM
2963
2964 /* And plt entries. */
2965 if (eind->elf.plt.plist != NULL)
2966 {
2967 if (edir->elf.plt.plist != NULL)
2968 {
2969 struct plt_entry **entp;
2970 struct plt_entry *ent;
2971
2972 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2973 {
2974 struct plt_entry *dent;
2975
2976 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2977 if (dent->sec == ent->sec && dent->addend == ent->addend)
2978 {
2979 dent->plt.refcount += ent->plt.refcount;
2980 *entp = ent->next;
2981 break;
2982 }
2983 if (dent == NULL)
2984 entp = &ent->next;
2985 }
2986 *entp = edir->elf.plt.plist;
2987 }
2988
2989 edir->elf.plt.plist = eind->elf.plt.plist;
2990 eind->elf.plt.plist = NULL;
2991 }
2992
fcfa13d2 2993 if (eind->elf.dynindx != -1)
25dbc73a 2994 {
fcfa13d2
AM
2995 if (edir->elf.dynindx != -1)
2996 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2997 edir->elf.dynstr_index);
a6aa5195
AM
2998 edir->elf.dynindx = eind->elf.dynindx;
2999 edir->elf.dynstr_index = eind->elf.dynstr_index;
3000 eind->elf.dynindx = -1;
3001 eind->elf.dynstr_index = 0;
25dbc73a 3002 }
25dbc73a 3003}
3dab13f6 3004
25dbc73a
AM
3005/* Hook called by the linker routine which adds symbols from an object
3006 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3007
25dbc73a
AM
3008static bfd_boolean
3009ppc_elf_add_symbol_hook (bfd *abfd,
3010 struct bfd_link_info *info,
3011 Elf_Internal_Sym *sym,
3012 const char **namep ATTRIBUTE_UNUSED,
3013 flagword *flagsp ATTRIBUTE_UNUSED,
3014 asection **secp,
3015 bfd_vma *valp)
3016{
3017 if (sym->st_shndx == SHN_COMMON
3018 && !info->relocatable
0c8d6e5c
AM
3019 && is_ppc_elf (info->output_bfd)
3020 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3021 {
3022 /* Common symbols less than or equal to -G nn bytes are automatically
3023 put into .sbss. */
3024 struct ppc_elf_link_hash_table *htab;
3dab13f6 3025
25dbc73a
AM
3026 htab = ppc_elf_hash_table (info);
3027 if (htab->sbss == NULL)
3028 {
644285ef 3029 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3030
644285ef
AM
3031 if (!htab->elf.dynobj)
3032 htab->elf.dynobj = abfd;
3033
3496cb2a
L
3034 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3035 ".sbss",
3036 flags);
3037 if (htab->sbss == NULL)
25dbc73a 3038 return FALSE;
3dab13f6 3039 }
3dab13f6 3040
25dbc73a
AM
3041 *secp = htab->sbss;
3042 *valp = sym->st_size;
3043 }
3dab13f6 3044
25dbc73a 3045 return TRUE;
3dab13f6
AM
3046}
3047\f
046183de
AM
3048static bfd_boolean
3049create_sdata_sym (struct ppc_elf_link_hash_table *htab,
3050 elf_linker_section_t *lsect)
3051{
3052 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3053 TRUE, FALSE, TRUE);
3054 if (lsect->sym == NULL)
3055 return FALSE;
3056 if (lsect->sym->root.type == bfd_link_hash_new)
3057 lsect->sym->non_elf = 0;
3058 lsect->sym->ref_regular = 1;
3059 return TRUE;
3060}
3061
c9a2f333 3062/* Create a special linker section. */
25dbc73a 3063
c9a2f333 3064static bfd_boolean
55fd94b0
AM
3065ppc_elf_create_linker_section (bfd *abfd,
3066 struct bfd_link_info *info,
c9a2f333
AM
3067 flagword flags,
3068 elf_linker_section_t *lsect)
252b5132 3069{
58111eb7 3070 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 3071 asection *s;
58111eb7 3072
c9a2f333
AM
3073 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3074 | SEC_LINKER_CREATED);
58111eb7
AM
3075
3076 /* Record the first bfd that needs the special sections. */
3077 if (!htab->elf.dynobj)
3078 htab->elf.dynobj = abfd;
3079
3496cb2a
L
3080 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3081 lsect->name,
3082 flags);
76750a2f 3083 if (s == NULL
76750a2f 3084 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 3085 return FALSE;
76750a2f 3086 lsect->section = s;
58111eb7 3087
046183de 3088 return create_sdata_sym (htab, lsect);
252b5132 3089}
252b5132 3090
25dbc73a
AM
3091/* Find a linker generated pointer with a given addend and type. */
3092
3093static elf_linker_section_pointers_t *
3094elf_find_pointer_linker_section
3095 (elf_linker_section_pointers_t *linker_pointers,
3096 bfd_vma addend,
3097 elf_linker_section_t *lsect)
252b5132 3098{
25dbc73a
AM
3099 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3100 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3101 return linker_pointers;
252b5132 3102
25dbc73a
AM
3103 return NULL;
3104}
3105
3106/* Allocate a pointer to live in a linker created section. */
3107
3108static bfd_boolean
3109elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM
3110 elf_linker_section_t *lsect,
3111 struct elf_link_hash_entry *h,
3112 const Elf_Internal_Rela *rel)
3113{
3114 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3115 elf_linker_section_pointers_t *linker_section_ptr;
3116 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3117 bfd_size_type amt;
3118
3119 BFD_ASSERT (lsect != NULL);
3120
3121 /* Is this a global symbol? */
3122 if (h != NULL)
3123 {
3124 struct ppc_elf_link_hash_entry *eh;
3125
3126 /* Has this symbol already been allocated? If so, our work is done. */
3127 eh = (struct ppc_elf_link_hash_entry *) h;
3128 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3129 rel->r_addend,
3130 lsect))
3131 return TRUE;
3132
3133 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3134 }
3135 else
3136 {
0c8d6e5c 3137 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3138
25dbc73a
AM
3139 /* Allocation of a pointer to a local symbol. */
3140 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3141
3142 /* Allocate a table to hold the local symbols if first time. */
3143 if (!ptr)
3144 {
0ffa91dd 3145 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3146
3147 amt = num_symbols;
3148 amt *= sizeof (elf_linker_section_pointers_t *);
3149 ptr = bfd_zalloc (abfd, amt);
3150
3151 if (!ptr)
3152 return FALSE;
3153
3154 elf_local_ptr_offsets (abfd) = ptr;
3155 }
3156
3157 /* Has this symbol already been allocated? If so, our work is done. */
3158 if (elf_find_pointer_linker_section (ptr[r_symndx],
3159 rel->r_addend,
3160 lsect))
3161 return TRUE;
252b5132 3162
25dbc73a 3163 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3164 }
41fcb14e 3165
25dbc73a
AM
3166 /* Allocate space for a pointer in the linker section, and allocate
3167 a new pointer record from internal memory. */
3168 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3169 amt = sizeof (elf_linker_section_pointers_t);
3170 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3171
25dbc73a 3172 if (!linker_section_ptr)
7619e7c7 3173 return FALSE;
41fcb14e 3174
25dbc73a
AM
3175 linker_section_ptr->next = *ptr_linker_section_ptr;
3176 linker_section_ptr->addend = rel->r_addend;
3177 linker_section_ptr->lsect = lsect;
25dbc73a 3178 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3179
25dbc73a
AM
3180 linker_section_ptr->offset = lsect->section->size;
3181 lsect->section->size += 4;
7619e7c7 3182
25dbc73a
AM
3183#ifdef DEBUG
3184 fprintf (stderr,
3185 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3186 lsect->name, (long) linker_section_ptr->offset,
3187 (long) lsect->section->size);
3188#endif
7619e7c7
AM
3189
3190 return TRUE;
41fcb14e
AM
3191}
3192
b34976b6 3193static bfd_boolean
25dbc73a
AM
3194update_local_sym_info (bfd *abfd,
3195 Elf_Internal_Shdr *symtab_hdr,
3196 unsigned long r_symndx,
3197 int tls_type)
252b5132 3198{
25dbc73a
AM
3199 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3200 char *local_got_tls_masks;
252b5132 3201
25dbc73a 3202 if (local_got_refcounts == NULL)
252b5132 3203 {
25dbc73a
AM
3204 bfd_size_type size = symtab_hdr->sh_info;
3205
3206 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
3207 local_got_refcounts = bfd_zalloc (abfd, size);
3208 if (local_got_refcounts == NULL)
b34976b6 3209 return FALSE;
25dbc73a 3210 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3211 }
41fcb14e 3212
25dbc73a
AM
3213 local_got_refcounts[r_symndx] += 1;
3214 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
3215 local_got_tls_masks[r_symndx] |= tls_type;
3216 return TRUE;
3217}
41fcb14e 3218
a6aa5195
AM
3219static bfd_boolean
3220update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
3221 asection *sec, bfd_vma addend)
3222{
3223 struct plt_entry *ent;
3224
3225 if (addend < 32768)
3226 sec = NULL;
3227 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3228 if (ent->sec == sec && ent->addend == addend)
3229 break;
3230 if (ent == NULL)
3231 {
3232 bfd_size_type amt = sizeof (*ent);
3233 ent = bfd_alloc (abfd, amt);
3234 if (ent == NULL)
3235 return FALSE;
3236 ent->next = h->plt.plist;
3237 ent->sec = sec;
3238 ent->addend = addend;
3239 ent->plt.refcount = 0;
3240 h->plt.plist = ent;
3241 }
3242 ent->plt.refcount += 1;
3243 return TRUE;
3244}
3245
3246static struct plt_entry *
3247find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3248{
3249 struct plt_entry *ent;
3250
3251 if (addend < 32768)
3252 sec = NULL;
3253 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3254 if (ent->sec == sec && ent->addend == addend)
3255 break;
3256 return ent;
3257}
3258
25dbc73a
AM
3259static void
3260bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3261{
3262 (*_bfd_error_handler)
3263 (_("%B: relocation %s cannot be used when making a shared object"),
3264 abfd,
3265 ppc_elf_howto_table[r_type]->name);
3266 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3267}
3268
25dbc73a
AM
3269/* Look through the relocs for a section during the first phase, and
3270 allocate space in the global offset table or procedure linkage
3271 table. */
252b5132 3272
b34976b6 3273static bfd_boolean
25dbc73a
AM
3274ppc_elf_check_relocs (bfd *abfd,
3275 struct bfd_link_info *info,
3276 asection *sec,
3277 const Elf_Internal_Rela *relocs)
252b5132 3278{
7619e7c7 3279 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3280 Elf_Internal_Shdr *symtab_hdr;
3281 struct elf_link_hash_entry **sym_hashes;
3282 const Elf_Internal_Rela *rel;
3283 const Elf_Internal_Rela *rel_end;
a6aa5195 3284 asection *got2, *sreloc;
25dbc73a
AM
3285
3286 if (info->relocatable)
3287 return TRUE;
252b5132 3288
c87b5a93
AM
3289 /* Don't do anything special with non-loaded, non-alloced sections.
3290 In particular, any relocs in such sections should not affect GOT
3291 and PLT reference counting (ie. we don't allow them to create GOT
3292 or PLT entries), there's no possibility or desire to optimize TLS
3293 relocs, and there's not much point in propagating relocs to shared
3294 libs that the dynamic linker won't relocate. */
3295 if ((sec->flags & SEC_ALLOC) == 0)
3296 return TRUE;
3297
252b5132 3298#ifdef DEBUG
25dbc73a
AM
3299 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3300 sec, abfd);
252b5132
RH
3301#endif
3302
0c8d6e5c 3303 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3304
25dbc73a
AM
3305 /* Initialize howto table if not already done. */
3306 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3307 ppc_elf_howto_init ();
3308
7619e7c7 3309 htab = ppc_elf_hash_table (info);
0ffa91dd 3310 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3311 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3312 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3313 sreloc = NULL;
3314
3315 rel_end = relocs + sec->reloc_count;
3316 for (rel = relocs; rel < rel_end; rel++)
3317 {
3318 unsigned long r_symndx;
3319 enum elf_ppc_reloc_type r_type;
3320 struct elf_link_hash_entry *h;
3321 int tls_type = 0;
3322
3323 r_symndx = ELF32_R_SYM (rel->r_info);
3324 if (r_symndx < symtab_hdr->sh_info)
3325 h = NULL;
3326 else
973a3492
L
3327 {
3328 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3329 while (h->root.type == bfd_link_hash_indirect
3330 || h->root.type == bfd_link_hash_warning)
3331 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3332 }
25dbc73a
AM
3333
3334 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3335 This shows up in particular in an R_PPC_ADDR32 in the eabi
3336 startup code. */
3b36f7e6
AM
3337 if (h != NULL
3338 && htab->got == NULL
3339 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3340 {
3b36f7e6
AM
3341 if (htab->elf.dynobj == NULL)
3342 htab->elf.dynobj = abfd;
3343 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3344 return FALSE;
3345 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3346 }
252b5132 3347
25dbc73a
AM
3348 r_type = ELF32_R_TYPE (rel->r_info);
3349 switch (r_type)
3350 {
3351 case R_PPC_GOT_TLSLD16:
3352 case R_PPC_GOT_TLSLD16_LO:
3353 case R_PPC_GOT_TLSLD16_HI:
3354 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
3355 tls_type = TLS_TLS | TLS_LD;
3356 goto dogottls;
252b5132 3357
25dbc73a
AM
3358 case R_PPC_GOT_TLSGD16:
3359 case R_PPC_GOT_TLSGD16_LO:
3360 case R_PPC_GOT_TLSGD16_HI:
3361 case R_PPC_GOT_TLSGD16_HA:
3362 tls_type = TLS_TLS | TLS_GD;
3363 goto dogottls;
3364
3365 case R_PPC_GOT_TPREL16:
3366 case R_PPC_GOT_TPREL16_LO:
3367 case R_PPC_GOT_TPREL16_HI:
3368 case R_PPC_GOT_TPREL16_HA:
1d483afe 3369 if (!info->executable)
25dbc73a
AM
3370 info->flags |= DF_STATIC_TLS;
3371 tls_type = TLS_TLS | TLS_TPREL;
3372 goto dogottls;
3373
3374 case R_PPC_GOT_DTPREL16:
3375 case R_PPC_GOT_DTPREL16_LO:
3376 case R_PPC_GOT_DTPREL16_HI:
3377 case R_PPC_GOT_DTPREL16_HA:
3378 tls_type = TLS_TLS | TLS_DTPREL;
3379 dogottls:
3380 sec->has_tls_reloc = 1;
3381 /* Fall thru */
252b5132 3382
25dbc73a
AM
3383 /* GOT16 relocations */
3384 case R_PPC_GOT16:
3385 case R_PPC_GOT16_LO:
3386 case R_PPC_GOT16_HI:
3387 case R_PPC_GOT16_HA:
3388 /* This symbol requires a global offset table entry. */
3389 if (htab->got == NULL)
3390 {
3391 if (htab->elf.dynobj == NULL)
3392 htab->elf.dynobj = abfd;
3393 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3394 return FALSE;
3395 }
3396 if (h != NULL)
3397 {
3398 h->got.refcount += 1;
3399 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3400 }
3401 else
3402 /* This is a global offset table entry for a local symbol. */
3403 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3404 return FALSE;
3405 break;
252b5132 3406
25dbc73a
AM
3407 /* Indirect .sdata relocation. */
3408 case R_PPC_EMB_SDAI16:
3409 if (info->shared)
3410 {
3411 bad_shared_reloc (abfd, r_type);
3412 return FALSE;
3413 }
c9a2f333
AM
3414 if (htab->sdata[0].section == NULL
3415 && !ppc_elf_create_linker_section (abfd, info, 0,
3416 &htab->sdata[0]))
3417 return FALSE;
76750a2f
AM
3418 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3419 h, rel))
25dbc73a 3420 return FALSE;
046183de
AM
3421 if (h != NULL)
3422 {
3423 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3424 h->non_got_ref = TRUE;
3425 }
25dbc73a 3426 break;
252b5132 3427
25dbc73a
AM
3428 /* Indirect .sdata2 relocation. */
3429 case R_PPC_EMB_SDA2I16:
3430 if (info->shared)
3431 {
3432 bad_shared_reloc (abfd, r_type);
3433 return FALSE;
3434 }
c9a2f333
AM
3435 if (htab->sdata[1].section == NULL
3436 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3437 &htab->sdata[1]))
3438 return FALSE;
76750a2f
AM
3439 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3440 h, rel))
25dbc73a 3441 return FALSE;
046183de
AM
3442 if (h != NULL)
3443 {
3444 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3445 h->non_got_ref = TRUE;
3446 }
25dbc73a 3447 break;
252b5132 3448
25dbc73a 3449 case R_PPC_SDAREL16:
046183de
AM
3450 if (info->shared)
3451 {
3452 bad_shared_reloc (abfd, r_type);
3453 return FALSE;
3454 }
3455 if (htab->sdata[0].sym == NULL
3456 && !create_sdata_sym (htab, &htab->sdata[0]))
3457 return FALSE;
3458 if (h != NULL)
3459 {
3460 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3461 h->non_got_ref = TRUE;
3462 }
3463 break;
3464
25dbc73a 3465 case R_PPC_EMB_SDA2REL:
046183de
AM
3466 if (info->shared)
3467 {
3468 bad_shared_reloc (abfd, r_type);
3469 return FALSE;
3470 }
3471 if (htab->sdata[1].sym == NULL
3472 && !create_sdata_sym (htab, &htab->sdata[1]))
3473 return FALSE;
3474 if (h != NULL)
3475 {
3476 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3477 h->non_got_ref = TRUE;
3478 }
3479 break;
3480
25dbc73a
AM
3481 case R_PPC_EMB_SDA21:
3482 case R_PPC_EMB_RELSDA:
046183de
AM
3483 if (info->shared)
3484 {
3485 bad_shared_reloc (abfd, r_type);
3486 return FALSE;
3487 }
3488 if (htab->sdata[0].sym == NULL
3489 && !create_sdata_sym (htab, &htab->sdata[0]))
3490 return FALSE;
3491 if (htab->sdata[1].sym == NULL
3492 && !create_sdata_sym (htab, &htab->sdata[1]))
3493 return FALSE;
3494 if (h != NULL)
3495 {
3496 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3497 h->non_got_ref = TRUE;
3498 }
3499 break;
3500
25dbc73a
AM
3501 case R_PPC_EMB_NADDR32:
3502 case R_PPC_EMB_NADDR16:
3503 case R_PPC_EMB_NADDR16_LO:
3504 case R_PPC_EMB_NADDR16_HI:
3505 case R_PPC_EMB_NADDR16_HA:
3506 if (info->shared)
3507 {
3508 bad_shared_reloc (abfd, r_type);
3509 return FALSE;
3510 }
4dc4a9a5 3511 if (h != NULL)
046183de 3512 h->non_got_ref = TRUE;
25dbc73a 3513 break;
252b5132 3514
25dbc73a
AM
3515 case R_PPC_PLT32:
3516 case R_PPC_PLTREL24:
3517 case R_PPC_PLTREL32:
3518 case R_PPC_PLT16_LO:
3519 case R_PPC_PLT16_HI:
3520 case R_PPC_PLT16_HA:
3521#ifdef DEBUG
3522 fprintf (stderr, "Reloc requires a PLT entry\n");
3523#endif
3524 /* This symbol requires a procedure linkage table entry. We
3525 actually build the entry in finish_dynamic_symbol,
3526 because this might be a case of linking PIC code without
3527 linking in any dynamic objects, in which case we don't
3528 need to generate a procedure linkage table after all. */
7619e7c7 3529
25dbc73a
AM
3530 if (h == NULL)
3531 {
3532 /* It does not make sense to have a procedure linkage
3533 table entry for a local symbol. */
3534 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3535 "local symbol"),
3536 abfd,
3537 sec,
3538 (long) rel->r_offset,
3539 ppc_elf_howto_table[r_type]->name);
3540 bfd_set_error (bfd_error_bad_value);
3541 return FALSE;
3542 }
a6aa5195
AM
3543 else
3544 {
016687f8 3545 bfd_vma addend = 0;
ee05f2fe 3546
016687f8
AM
3547 if (r_type == R_PPC_PLTREL24)
3548 {
3549 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3550 addend = rel->r_addend;
3551 }
a6aa5195
AM
3552 h->needs_plt = 1;
3553 if (!update_plt_info (abfd, h, got2, addend))
3554 return FALSE;
3555 }
25dbc73a 3556 break;
ee05f2fe 3557
25dbc73a
AM
3558 /* The following relocations don't need to propagate the
3559 relocation if linking a shared object since they are
3560 section relative. */
3561 case R_PPC_SECTOFF:
3562 case R_PPC_SECTOFF_LO:
3563 case R_PPC_SECTOFF_HI:
3564 case R_PPC_SECTOFF_HA:
3565 case R_PPC_DTPREL16:
3566 case R_PPC_DTPREL16_LO:
3567 case R_PPC_DTPREL16_HI:
3568 case R_PPC_DTPREL16_HA:
3569 case R_PPC_TOC16:
3570 break;
252b5132 3571
d7128ce4
AM
3572 case R_PPC_REL16:
3573 case R_PPC_REL16_LO:
3574 case R_PPC_REL16_HI:
3575 case R_PPC_REL16_HA:
016687f8 3576 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
3577 break;
3578
a6aa5195 3579 /* These are just markers. */
25dbc73a
AM
3580 case R_PPC_TLS:
3581 case R_PPC_EMB_MRKREF:
3582 case R_PPC_NONE:
3583 case R_PPC_max:
3584 break;
252b5132 3585
25dbc73a
AM
3586 /* These should only appear in dynamic objects. */
3587 case R_PPC_COPY:
3588 case R_PPC_GLOB_DAT:
3589 case R_PPC_JMP_SLOT:
3590 case R_PPC_RELATIVE:
3591 break;
252b5132 3592
25dbc73a
AM
3593 /* These aren't handled yet. We'll report an error later. */
3594 case R_PPC_ADDR30:
3595 case R_PPC_EMB_RELSEC16:
3596 case R_PPC_EMB_RELST_LO:
3597 case R_PPC_EMB_RELST_HI:
3598 case R_PPC_EMB_RELST_HA:
3599 case R_PPC_EMB_BIT_FLD:
3600 break;
252b5132 3601
25dbc73a
AM
3602 /* This refers only to functions defined in the shared library. */
3603 case R_PPC_LOCAL24PC:
4a3dc543 3604 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
3605 {
3606 htab->plt_type = PLT_OLD;
3607 htab->old_bfd = abfd;
3608 }
25dbc73a 3609 break;
252b5132 3610
25dbc73a
AM
3611 /* This relocation describes the C++ object vtable hierarchy.
3612 Reconstruct it for later use during GC. */
3613 case R_PPC_GNU_VTINHERIT:
3614 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3615 return FALSE;
3616 break;
252b5132 3617
25dbc73a
AM
3618 /* This relocation describes which C++ vtable entries are actually
3619 used. Record for later use during GC. */
3620 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
3621 BFD_ASSERT (h != NULL);
3622 if (h != NULL
3623 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
3624 return FALSE;
3625 break;
252b5132 3626
25dbc73a
AM
3627 /* We shouldn't really be seeing these. */
3628 case R_PPC_TPREL32:
1d483afe
AM
3629 case R_PPC_TPREL16:
3630 case R_PPC_TPREL16_LO:
3631 case R_PPC_TPREL16_HI:
3632 case R_PPC_TPREL16_HA:
3633 if (!info->executable)
25dbc73a
AM
3634 info->flags |= DF_STATIC_TLS;
3635 goto dodyn;
252b5132 3636
25dbc73a
AM
3637 /* Nor these. */
3638 case R_PPC_DTPMOD32:
3639 case R_PPC_DTPREL32:
3640 goto dodyn;
252b5132 3641
9edfd1af
AM
3642 case R_PPC_REL32:
3643 if (h == NULL
3644 && got2 != NULL
3645 && (sec->flags & SEC_CODE) != 0
3646 && (info->shared || info->pie)
4a3dc543 3647 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
3648 {
3649 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3650 the start of a function, which assembles to a REL32
3651 reference to .got2. If we detect one of these, then
3652 force the old PLT layout because the linker cannot
3653 reliably deduce the GOT pointer value needed for
3654 PLT call stubs. */
3655 asection *s;
3656
3657 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3658 r_symndx);
3659 if (s == got2)
016687f8
AM
3660 {
3661 htab->plt_type = PLT_OLD;
3662 htab->old_bfd = abfd;
3663 }
9edfd1af 3664 }
7123df0e 3665 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3666 break;
625af618
AM
3667 /* fall through */
3668
3669 case R_PPC_ADDR32:
3670 case R_PPC_ADDR16:
3671 case R_PPC_ADDR16_LO:
3672 case R_PPC_ADDR16_HI:
3673 case R_PPC_ADDR16_HA:
3674 case R_PPC_UADDR32:
3675 case R_PPC_UADDR16:
3676 if (h != NULL && !info->shared)
3677 {
3678 /* We may need a plt entry if the symbol turns out to be
3679 a function defined in a dynamic object. */
3680 if (!update_plt_info (abfd, h, NULL, 0))
3681 return FALSE;
3682
3683 /* We may need a copy reloc too. */
3684 h->non_got_ref = 1;
3685 h->pointer_equality_needed = 1;
3686 }
3687 goto dodyn;
9edfd1af 3688
25dbc73a
AM
3689 case R_PPC_REL24:
3690 case R_PPC_REL14:
3691 case R_PPC_REL14_BRTAKEN:
3692 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3693 if (h == NULL)
25dbc73a 3694 break;
7123df0e 3695 if (h == htab->elf.hgot)
d7128ce4 3696 {
7123df0e 3697 if (htab->plt_type == PLT_UNSET)
016687f8
AM
3698 {
3699 htab->plt_type = PLT_OLD;
3700 htab->old_bfd = abfd;
3701 }
d7128ce4
AM
3702 break;
3703 }
25dbc73a 3704 /* fall through */
ee05f2fe 3705
25dbc73a 3706 case R_PPC_ADDR24:
25dbc73a
AM
3707 case R_PPC_ADDR14:
3708 case R_PPC_ADDR14_BRTAKEN:
3709 case R_PPC_ADDR14_BRNTAKEN:
25dbc73a
AM
3710 if (h != NULL && !info->shared)
3711 {
3712 /* We may need a plt entry if the symbol turns out to be
3713 a function defined in a dynamic object. */
a6aa5195
AM
3714 if (!update_plt_info (abfd, h, NULL, 0))
3715 return FALSE;
625af618 3716 break;
25dbc73a 3717 }
7619e7c7 3718
25dbc73a
AM
3719 dodyn:
3720 /* If we are creating a shared library, and this is a reloc
3721 against a global symbol, or a non PC relative reloc
3722 against a local symbol, then we need to copy the reloc
3723 into the shared library. However, if we are linking with
3724 -Bsymbolic, we do not need to copy a reloc against a
3725 global symbol which is defined in an object we are
3726 including in the link (i.e., DEF_REGULAR is set). At
3727 this point we have not seen all the input files, so it is
3728 possible that DEF_REGULAR is not set now but will be set
3729 later (it is never cleared). In case of a weak definition,
3730 DEF_REGULAR may be cleared later by a strong definition in
3731 a shared library. We account for that possibility below by
3732 storing information in the dyn_relocs field of the hash
3733 table entry. A similar situation occurs when creating
3734 shared libraries and symbol visibility changes render the
3735 symbol local.
7619e7c7 3736
25dbc73a
AM
3737 If on the other hand, we are creating an executable, we
3738 may need to keep relocations for symbols satisfied by a
3739 dynamic library if we manage to avoid copy relocs for the
3740 symbol. */
3741 if ((info->shared
1d483afe 3742 && (must_be_dyn_reloc (info, r_type)
25dbc73a
AM
3743 || (h != NULL
3744 && (! info->symbolic
3745 || h->root.type == bfd_link_hash_defweak
3746 || !h->def_regular))))
3747 || (ELIMINATE_COPY_RELOCS
3748 && !info->shared
25dbc73a
AM
3749 && h != NULL
3750 && (h->root.type == bfd_link_hash_defweak
3751 || !h->def_regular)))
3752 {
3753 struct ppc_elf_dyn_relocs *p;
3754 struct ppc_elf_dyn_relocs **head;
7619e7c7 3755
25dbc73a
AM
3756#ifdef DEBUG
3757 fprintf (stderr,
3758 "ppc_elf_check_relocs needs to "
3759 "create relocation for %s\n",
3760 (h && h->root.root.string
3761 ? h->root.root.string : "<unknown>"));
3762#endif
3763 if (sreloc == NULL)
3764 {
3765 const char *name;
7619e7c7 3766
25dbc73a
AM
3767 name = (bfd_elf_string_from_elf_section
3768 (abfd,
3769 elf_elfheader (abfd)->e_shstrndx,
3770 elf_section_data (sec)->rel_hdr.sh_name));
3771 if (name == NULL)
3772 return FALSE;
7619e7c7 3773
0112cd26 3774 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
25dbc73a
AM
3775 && strcmp (bfd_get_section_name (abfd, sec),
3776 name + 5) == 0);
7619e7c7 3777
c9a2f333
AM
3778 if (htab->elf.dynobj == NULL)
3779 htab->elf.dynobj = abfd;
25dbc73a
AM
3780 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3781 if (sreloc == NULL)
3782 {
3783 flagword flags;
7619e7c7 3784
25dbc73a 3785 flags = (SEC_HAS_CONTENTS | SEC_READONLY
c87b5a93
AM
3786 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3787 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L
3788 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3789 name,
3790 flags);
25dbc73a 3791 if (sreloc == NULL
25dbc73a
AM
3792 || ! bfd_set_section_alignment (htab->elf.dynobj,
3793 sreloc, 2))
3794 return FALSE;
3795 }
3796 elf_section_data (sec)->sreloc = sreloc;
3797 }
7619e7c7 3798
25dbc73a
AM
3799 /* If this is a global symbol, we count the number of
3800 relocations we need for this symbol. */
3801 if (h != NULL)
3802 {
3803 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3804 }
3805 else
3806 {
3807 /* Track dynamic relocs needed for local syms too.
3808 We really need local syms available to do this
3809 easily. Oh well. */
7619e7c7 3810
25dbc73a 3811 asection *s;
6edfbbad
DJ
3812 void *vpp;
3813
25dbc73a
AM
3814 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3815 sec, r_symndx);
3816 if (s == NULL)
3817 return FALSE;
7fce784e 3818
6edfbbad
DJ
3819 vpp = &elf_section_data (s)->local_dynrel;
3820 head = (struct ppc_elf_dyn_relocs **) vpp;
25dbc73a 3821 }
7fce784e 3822
25dbc73a
AM
3823 p = *head;
3824 if (p == NULL || p->sec != sec)
3825 {
3826 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3827 if (p == NULL)
3828 return FALSE;
3829 p->next = *head;
3830 *head = p;
3831 p->sec = sec;
3832 p->count = 0;
3833 p->pc_count = 0;
3834 }
3835
3836 p->count += 1;
1d483afe 3837 if (!must_be_dyn_reloc (info, r_type))
25dbc73a 3838 p->pc_count += 1;
7619e7c7 3839 }
25dbc73a
AM
3840
3841 break;
7619e7c7
AM
3842 }
3843 }
ee05f2fe 3844
25dbc73a
AM
3845 return TRUE;
3846}
3847\f
34c8bcba
JM
3848
3849/* Merge object attributes from IBFD into OBFD. Raise an error if
3850 there are conflicting attributes. */
3851static bfd_boolean
3852ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3853{
c6e65352
DJ
3854 obj_attribute *in_attr, *in_attrs;
3855 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM
3856
3857 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3858 {
3859 /* This is the first object. Copy the attributes. */
3860 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3861
3862 /* Use the Tag_null value to indicate the attributes have been
3863 initialized. */
3864 elf_known_obj_attributes_proc (obfd)[0].i = 1;
3865
3866 return TRUE;
3867 }
3868
c6e65352
DJ
3869 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3870 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3871
34c8bcba
JM
3872 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3873 non-conflicting ones. */
c6e65352
DJ
3874 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
3875 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
3876 if (in_attr->i != out_attr->i)
34c8bcba 3877 {
c6e65352
DJ
3878 out_attr->type = 1;
3879 if (out_attr->i == 0)
3880 out_attr->i = in_attr->i;
3881 else if (in_attr->i == 0)
34c8bcba 3882 ;
c6e65352 3883 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM
3884 _bfd_error_handler
3885 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
c6e65352 3886 else if (out_attr->i == 2 && in_attr->i == 1)
34c8bcba
JM
3887 _bfd_error_handler
3888 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
c6e65352 3889 else if (in_attr->i > 2)
34c8bcba
JM
3890 _bfd_error_handler
3891 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 3892 in_attr->i);
34c8bcba
JM
3893 else
3894 _bfd_error_handler
3895 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ
3896 out_attr->i);
3897 }
3898
3899 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
3900 merge non-conflicting ones. */
3901 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
3902 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
3903 if (in_attr->i != out_attr->i)
3904 {
3905 const char *in_abi = NULL, *out_abi = NULL;
3906
3907 switch (in_attr->i)
3908 {
3909 case 1: in_abi = "generic"; break;
3910 case 2: in_abi = "AltiVec"; break;
3911 case 3: in_abi = "SPE"; break;
3912 }
3913
3914 switch (out_attr->i)
3915 {
3916 case 1: out_abi = "generic"; break;
3917 case 2: out_abi = "AltiVec"; break;
3918 case 3: out_abi = "SPE"; break;
3919 }
3920
3921 out_attr->type = 1;
3922 if (out_attr->i == 0)
3923 out_attr->i = in_attr->i;
3924 else if (in_attr->i == 0)
3925 ;
3926 /* For now, allow generic to transition to AltiVec or SPE
3927 without a warning. If GCC marked files with their stack
3928 alignment and used don't-care markings for files which are
3929 not affected by the vector ABI, we could warn about this
3930 case too. */
3931 else if (out_attr->i == 1)
3932 out_attr->i = in_attr->i;
3933 else if (in_attr->i == 1)
3934 ;
3935 else if (in_abi == NULL)
3936 _bfd_error_handler
3937 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
3938 in_attr->i);
3939 else if (out_abi == NULL)
3940 _bfd_error_handler
3941 (_("Warning: %B uses unknown vector ABI %d"), obfd,
3942 in_attr->i);
3943 else
3944 _bfd_error_handler
3945 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
3946 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM
3947 }
3948
3949 /* Merge Tag_compatibility attributes and any common GNU ones. */
3950 _bfd_elf_merge_object_attributes (ibfd, obfd);
3951
3952 return TRUE;
3953}
3954
8853c3d3
AM
3955/* Merge backend specific data from an object file to the output
3956 object file when linking. */
3957
3958static bfd_boolean
3959ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3960{
3961 flagword old_flags;
3962 flagword new_flags;
3963 bfd_boolean error;
3964
0c8d6e5c 3965 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
3966 return TRUE;
3967
3968 /* Check if we have the same endianess. */
3969 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3970 return FALSE;
3971
34c8bcba
JM
3972 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3973 return FALSE;
3974
8853c3d3
AM
3975 new_flags = elf_elfheader (ibfd)->e_flags;
3976 old_flags = elf_elfheader (obfd)->e_flags;
3977 if (!elf_flags_init (obfd))
3978 {
3979 /* First call, no flags set. */
3980 elf_flags_init (obfd) = TRUE;
3981 elf_elfheader (obfd)->e_flags = new_flags;
3982 }
3983
3984 /* Compatible flags are ok. */
3985 else if (new_flags == old_flags)
3986 ;
3987
3988 /* Incompatible flags. */
3989 else
3990 {
3991 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3992 to be linked with either. */
3993 error = FALSE;
3994 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3995 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3996 {
3997 error = TRUE;
3998 (*_bfd_error_handler)
3999 (_("%B: compiled with -mrelocatable and linked with "
4000 "modules compiled normally"), ibfd);
4001 }
4002 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4003 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4004 {
4005 error = TRUE;
4006 (*_bfd_error_handler)
4007 (_("%B: compiled normally and linked with "
4008 "modules compiled with -mrelocatable"), ibfd);
4009 }
4010
4011 /* The output is -mrelocatable-lib iff both the input files are. */
4012 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4013 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4014
4015 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4016 but each input file is either -mrelocatable or -mrelocatable-lib. */
4017 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4018 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4019 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4020 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4021
4022 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4023 any module uses it. */
4024 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4025
4026 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4027 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4028
4029 /* Warn about any other mismatches. */
4030 if (new_flags != old_flags)
4031 {
4032 error = TRUE;
4033 (*_bfd_error_handler)
4034 (_("%B: uses different e_flags (0x%lx) fields "
4035 "than previous modules (0x%lx)"),
4036 ibfd, (long) new_flags, (long) old_flags);
4037 }
4038
4039 if (error)
4040 {
4041 bfd_set_error (bfd_error_bad_value);
4042 return FALSE;
4043 }
4044 }
4045
4046 return TRUE;
4047}
4048\f
d7128ce4
AM
4049/* Choose which PLT scheme to use, and set .plt flags appropriately.
4050 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4051int
4052ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4053 struct bfd_link_info *info,
016687f8 4054 enum ppc_elf_plt_type plt_style,
0ba07910 4055 int emit_stub_syms)
d7128ce4
AM
4056{
4057 struct ppc_elf_link_hash_table *htab;
9d8504b1 4058 flagword flags;
d7128ce4
AM
4059
4060 htab = ppc_elf_hash_table (info);
4a3dc543
RS
4061
4062 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4063 {
4064 if (plt_style == PLT_OLD)
4065 htab->plt_type = PLT_OLD;
4066 else
4067 {
4068 bfd *ibfd;
4069 enum ppc_elf_plt_type plt_type = plt_style;
4070
4071 /* Look through the reloc flags left by ppc_elf_check_relocs.
4072 Use the old style bss plt if a file makes plt calls
4073 without using the new relocs, and if ld isn't given
4074 --secure-plt and we never see REL16 relocs. */
4075 if (plt_type == PLT_UNSET)
4076 plt_type = PLT_OLD;
60b31e8d 4077 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
0c8d6e5c 4078 if (is_ppc_elf (ibfd))
016687f8
AM
4079 {
4080 if (ppc_elf_tdata (ibfd)->has_rel16)
4081 plt_type = PLT_NEW;
4082 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4083 {
4084 plt_type = PLT_OLD;
4085 htab->old_bfd = ibfd;
4086 break;
4087 }
4088 }
4089 htab->plt_type = plt_type;
4090 }
4091 }
4092 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4093 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
d7128ce4 4094
0ba07910
AM
4095 htab->emit_stub_syms = emit_stub_syms;
4096
4a3dc543 4097 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 4098
4a3dc543 4099 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
4100 {
4101 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4102 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
4103
4104 /* The new PLT is a loaded section. */
4105 if (htab->plt != NULL
4106 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4107 return -1;
4108
4109 /* The new GOT is not executable. */
4110 if (htab->got != NULL
4111 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4112 return -1;
d7128ce4
AM
4113 }
4114 else
4115 {
4116 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
4117 if (htab->glink != NULL
4118 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4119 return -1;
d7128ce4 4120 }
4a3dc543 4121 return htab->plt_type == PLT_NEW;
d7128ce4
AM
4122}
4123\f
25dbc73a
AM
4124/* Return the section that should be marked against GC for a given
4125 relocation. */
586119b3 4126
25dbc73a
AM
4127static asection *
4128ppc_elf_gc_mark_hook (asection *sec,
07adf181 4129 struct bfd_link_info *info,
25dbc73a
AM
4130 Elf_Internal_Rela *rel,
4131 struct elf_link_hash_entry *h,
4132 Elf_Internal_Sym *sym)
4133{
4134 if (h != NULL)
07adf181
AM
4135 switch (ELF32_R_TYPE (rel->r_info))
4136 {
4137 case R_PPC_GNU_VTINHERIT:
4138 case R_PPC_GNU_VTENTRY:
4139 return NULL;
4140 }
4141
4142 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 4143}
a876ecf9 4144
25dbc73a
AM
4145/* Update the got, plt and dynamic reloc reference counts for the
4146 section being removed. */
4147
4148static bfd_boolean
4149ppc_elf_gc_sweep_hook (bfd *abfd,
4150 struct bfd_link_info *info,
4151 asection *sec,
4152 const Elf_Internal_Rela *relocs)
4153{
4154 struct ppc_elf_link_hash_table *htab;
4155 Elf_Internal_Shdr *symtab_hdr;
4156 struct elf_link_hash_entry **sym_hashes;
4157 bfd_signed_vma *local_got_refcounts;
4158 const Elf_Internal_Rela *rel, *relend;
a6aa5195 4159 asection *got2;
25dbc73a 4160
7dda2462
TG
4161 if (info->relocatable)
4162 return TRUE;
4163
c87b5a93
AM
4164 if ((sec->flags & SEC_ALLOC) == 0)
4165 return TRUE;
4166
25dbc73a
AM
4167 elf_section_data (sec)->local_dynrel = NULL;
4168
4169 htab = ppc_elf_hash_table (info);
0ffa91dd 4170 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
4171 sym_hashes = elf_sym_hashes (abfd);
4172 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 4173 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4174
4175 relend = relocs + sec->reloc_count;
4176 for (rel = relocs; rel < relend; rel++)
4177 {
4178 unsigned long r_symndx;
4179 enum elf_ppc_reloc_type r_type;
4180 struct elf_link_hash_entry *h = NULL;
4181
4182 r_symndx = ELF32_R_SYM (rel->r_info);
4183 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 4184 {
25dbc73a
AM
4185 struct ppc_elf_dyn_relocs **pp, *p;
4186 struct ppc_elf_link_hash_entry *eh;
4187
4188 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4189 while (h->root.type == bfd_link_hash_indirect
4190 || h->root.type == bfd_link_hash_warning)
4191 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4192 eh = (struct ppc_elf_link_hash_entry *) h;
4193
4194 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4195 if (p->sec == sec)
4196 {
4197 /* Everything must go for SEC. */
4198 *pp = p->next;
4199 break;
4200 }
a876ecf9 4201 }
ee05f2fe 4202
25dbc73a
AM
4203 r_type = ELF32_R_TYPE (rel->r_info);
4204 switch (r_type)
ee05f2fe 4205 {
25dbc73a
AM
4206 case R_PPC_GOT_TLSLD16:
4207 case R_PPC_GOT_TLSLD16_LO:
4208 case R_PPC_GOT_TLSLD16_HI:
4209 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4210 case R_PPC_GOT_TLSGD16:
4211 case R_PPC_GOT_TLSGD16_LO:
4212 case R_PPC_GOT_TLSGD16_HI:
4213 case R_PPC_GOT_TLSGD16_HA:
4214 case R_PPC_GOT_TPREL16:
4215 case R_PPC_GOT_TPREL16_LO:
4216 case R_PPC_GOT_TPREL16_HI:
4217 case R_PPC_GOT_TPREL16_HA:
4218 case R_PPC_GOT_DTPREL16:
4219 case R_PPC_GOT_DTPREL16_LO:
4220 case R_PPC_GOT_DTPREL16_HI:
4221 case R_PPC_GOT_DTPREL16_HA:
4222 case R_PPC_GOT16:
4223 case R_PPC_GOT16_LO:
4224 case R_PPC_GOT16_HI:
4225 case R_PPC_GOT16_HA:
4226 if (h != NULL)
ee05f2fe 4227 {
25dbc73a
AM
4228 if (h->got.refcount > 0)
4229 h->got.refcount--;
ee05f2fe 4230 }
25dbc73a
AM
4231 else if (local_got_refcounts != NULL)
4232 {
4233 if (local_got_refcounts[r_symndx] > 0)
4234 local_got_refcounts[r_symndx]--;
4235 }
4236 break;
ee05f2fe 4237
25dbc73a
AM
4238 case R_PPC_REL24:
4239 case R_PPC_REL14:
4240 case R_PPC_REL14_BRTAKEN:
4241 case R_PPC_REL14_BRNTAKEN:
4242 case R_PPC_REL32:
3b36f7e6 4243 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM
4244 break;
4245 /* Fall thru */
ee05f2fe 4246
25dbc73a
AM
4247 case R_PPC_ADDR32:
4248 case R_PPC_ADDR24:
4249 case R_PPC_ADDR16:
4250 case R_PPC_ADDR16_LO:
4251 case R_PPC_ADDR16_HI:
4252 case R_PPC_ADDR16_HA:
4253 case R_PPC_ADDR14:
4254 case R_PPC_ADDR14_BRTAKEN:
4255 case R_PPC_ADDR14_BRNTAKEN:
4256 case R_PPC_UADDR32:
4257 case R_PPC_UADDR16:
87538722
AM
4258 if (info->shared)
4259 break;
4260
25dbc73a
AM
4261 case R_PPC_PLT32:
4262 case R_PPC_PLTREL24:
87538722 4263 case R_PPC_PLTREL32:
25dbc73a
AM
4264 case R_PPC_PLT16_LO:
4265 case R_PPC_PLT16_HI:
4266 case R_PPC_PLT16_HA:
4267 if (h != NULL)
4268 {
a6aa5195
AM
4269 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
4270 struct plt_entry *ent = find_plt_ent (h, got2, addend);
4271 if (ent->plt.refcount > 0)
4272 ent->plt.refcount -= 1;
25dbc73a
AM
4273 }
4274 break;
ee05f2fe 4275
25dbc73a
AM
4276 default:
4277 break;
4278 }
7fce784e 4279 }
7fce784e
AS
4280 return TRUE;
4281}
25dbc73a
AM
4282\f
4283/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7fce784e 4284
25dbc73a
AM
4285asection *
4286ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 4287{
25dbc73a 4288 struct ppc_elf_link_hash_table *htab;
7fce784e 4289
25dbc73a 4290 htab = ppc_elf_hash_table (info);
4a3dc543 4291 if (htab->plt_type == PLT_NEW
d7128ce4
AM
4292 && htab->plt != NULL
4293 && htab->plt->output_section != NULL)
4294 {
4295 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4296 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4297 }
4298
25dbc73a
AM
4299 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4300 FALSE, FALSE, TRUE);
25dbc73a 4301 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
4302}
4303
25dbc73a
AM
4304/* Run through all the TLS relocs looking for optimization
4305 opportunities. */
252b5132 4306
25dbc73a
AM
4307bfd_boolean
4308ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4309 struct bfd_link_info *info)
252b5132 4310{
7fce784e 4311 bfd *ibfd;
25dbc73a
AM
4312 asection *sec;
4313 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 4314 int pass;
252b5132 4315
1d483afe 4316 if (info->relocatable || !info->executable)
25dbc73a 4317 return TRUE;
252b5132 4318
7619e7c7 4319 htab = ppc_elf_hash_table (info);
b7fcf6f6
AM
4320 /* Make two passes through the relocs. First time check that tls
4321 relocs involved in setting up a tls_get_addr call are indeed
4322 followed by such a call. If they are not, exclude them from
4323 the optimizations done on the second pass. */
4324 for (pass = 0; pass < 2; ++pass)
4325 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4326 {
4327 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 4328 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7619e7c7 4329
b7fcf6f6
AM
4330 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4331 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4332 {
4333 Elf_Internal_Rela *relstart, *rel, *relend;
252b5132 4334
b7fcf6f6
AM
4335 /* Read the relocations. */
4336 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4337 info->keep_memory);
4338 if (relstart == NULL)
4339 return FALSE;
7619e7c7 4340
b7fcf6f6
AM
4341 relend = relstart + sec->reloc_count;
4342 for (rel = relstart; rel < relend; rel++)
4343 {
4344 enum elf_ppc_reloc_type r_type;
4345 unsigned long r_symndx;
4346 struct elf_link_hash_entry *h = NULL;
4347 char *tls_mask;
4348 char tls_set, tls_clear;
4349 bfd_boolean is_local;
4350 int expecting_tls_get_addr;
4351 bfd_signed_vma *got_count;
4352
4353 r_symndx = ELF32_R_SYM (rel->r_info);
4354 if (r_symndx >= symtab_hdr->sh_info)
4355 {
4356 struct elf_link_hash_entry **sym_hashes;
7fce784e 4357
b7fcf6f6
AM
4358 sym_hashes = elf_sym_hashes (ibfd);
4359 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4360 while (h->root.type == bfd_link_hash_indirect
4361 || h->root.type == bfd_link_hash_warning)
4362 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4363 }
7619e7c7 4364
b7fcf6f6
AM
4365 expecting_tls_get_addr = 0;
4366 is_local = FALSE;
4367 if (h == NULL
4368 || !h->def_dynamic)
4369 is_local = TRUE;
7619e7c7 4370
b7fcf6f6
AM
4371 r_type = ELF32_R_TYPE (rel->r_info);
4372 switch (r_type)
4373 {
4374 case R_PPC_GOT_TLSLD16:
4375 case R_PPC_GOT_TLSLD16_LO:
4376 expecting_tls_get_addr = 1;
4377 /* Fall thru */
4378
4379 case R_PPC_GOT_TLSLD16_HI:
4380 case R_PPC_GOT_TLSLD16_HA:
4381 /* These relocs should never be against a symbol
4382 defined in a shared lib. Leave them alone if
4383 that turns out to be the case. */
4384 if (!is_local)
4385 continue;
4386
4387 /* LD -> LE */
4388 tls_set = 0;
4389 tls_clear = TLS_LD;
4390 break;
4391
4392 case R_PPC_GOT_TLSGD16:
4393 case R_PPC_GOT_TLSGD16_LO:
4394 expecting_tls_get_addr = 1;
4395 /* Fall thru */
4396
4397 case R_PPC_GOT_TLSGD16_HI:
4398 case R_PPC_GOT_TLSGD16_HA:
4399 if (is_local)
4400 /* GD -> LE */
4401 tls_set = 0;
4402 else
4403 /* GD -> IE */
4404 tls_set = TLS_TLS | TLS_TPRELGD;
4405 tls_clear = TLS_GD;
4406 break;
4407
4408 case R_PPC_GOT_TPREL16:
4409 case R_PPC_GOT_TPREL16_LO:
4410 case R_PPC_GOT_TPREL16_HI:
4411 case R_PPC_GOT_TPREL16_HA:
4412 if (is_local)
4413 {
4414 /* IE -> LE */
4415 tls_set = 0;
4416 tls_clear = TLS_TPREL;
4417 break;
4418 }
4419 else
4420 continue;
4421
4422 default:
25dbc73a 4423 continue;
b7fcf6f6 4424 }
25dbc73a 4425
b7fcf6f6
AM
4426 if (pass == 0)
4427 {
4428 if (!expecting_tls_get_addr)
4429 continue;
25dbc73a 4430
b7fcf6f6
AM
4431 if (rel + 1 < relend)
4432 {
4433 enum elf_ppc_reloc_type r_type2;
4434 unsigned long r_symndx2;
4435 struct elf_link_hash_entry *h2;
4436
4437 /* The next instruction should be a call to
4438 __tls_get_addr. Peek at the reloc to be sure. */
4439 r_type2 = ELF32_R_TYPE (rel[1].r_info);
4440 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
4441 if (r_symndx2 >= symtab_hdr->sh_info
4442 && (r_type2 == R_PPC_REL14
4443 || r_type2 == R_PPC_REL14_BRTAKEN
4444 || r_type2 == R_PPC_REL14_BRNTAKEN
4445 || r_type2 == R_PPC_REL24
4446 || r_type2 == R_PPC_PLTREL24))
4447 {
4448 struct elf_link_hash_entry **sym_hashes;
4449
4450 sym_hashes = elf_sym_hashes (ibfd);
4451 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
4452 while (h2->root.type == bfd_link_hash_indirect
4453 || h2->root.type == bfd_link_hash_warning)
4454 h2 = ((struct elf_link_hash_entry *)
4455 h2->root.u.i.link);
4456 if (h2 == htab->tls_get_addr)
4457 continue;
4458 }
4459 }
25dbc73a 4460
b7fcf6f6
AM
4461 /* Uh oh, we didn't find the expected call. We
4462 could just mark this symbol to exclude it
4463 from tls optimization but it's safer to skip
4464 the entire section. */
4465 sec->has_tls_reloc = 0;
4466 break;
4467 }
25dbc73a 4468
b7fcf6f6
AM
4469 if (h != NULL)
4470 {
4471 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4472 got_count = &h->got.refcount;
4473 }
4474 else
4475 {
4476 Elf_Internal_Sym *sym;
4477 bfd_signed_vma *lgot_refs;
4478 char *lgot_masks;
25dbc73a 4479
b7fcf6f6
AM
4480 if (locsyms == NULL)
4481 {
4482 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4483 if (locsyms == NULL)
4484 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4485 symtab_hdr->sh_info,
4486 0, NULL, NULL, NULL);
4487 if (locsyms == NULL)
4488 {
4489 if (elf_section_data (sec)->relocs != relstart)
4490 free (relstart);
4491 return FALSE;
4492 }
4493 }
4494 sym = locsyms + r_symndx;
4495 lgot_refs = elf_local_got_refcounts (ibfd);
4496 if (lgot_refs == NULL)
4497 abort ();
4498 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4499 tls_mask = &lgot_masks[r_symndx];
4500 got_count = &lgot_refs[r_symndx];
4501 }
25dbc73a 4502
b7fcf6f6
AM
4503 if (tls_set == 0)
4504 {
4505 /* We managed to get rid of a got entry. */
4506 if (*got_count > 0)
4507 *got_count -= 1;
4508 }
25dbc73a 4509
b7fcf6f6
AM
4510 if (expecting_tls_get_addr)
4511 {
4512 struct plt_entry *ent;
25dbc73a 4513
b7fcf6f6
AM
4514 ent = find_plt_ent (htab->tls_get_addr, NULL, 0);
4515 if (ent != NULL && ent->plt.refcount > 0)
4516 ent->plt.refcount -= 1;
4517 }
25dbc73a 4518
b7fcf6f6
AM
4519 *tls_mask |= tls_set;
4520 *tls_mask &= ~tls_clear;
4521 }
25dbc73a 4522
b7fcf6f6
AM
4523 if (elf_section_data (sec)->relocs != relstart)
4524 free (relstart);
4525 }
4526
4527 if (locsyms != NULL
4528 && (symtab_hdr->contents != (unsigned char *) locsyms))
4529 {
4530 if (!info->keep_memory)
4531 free (locsyms);
4532 else
4533 symtab_hdr->contents = (unsigned char *) locsyms;
4534 }
4535 }
25dbc73a
AM
4536 return TRUE;
4537}
4538\f
625af618
AM
4539/* Return true if we have dynamic relocs that apply to read-only sections. */
4540
4541static bfd_boolean
4542readonly_dynrelocs (struct elf_link_hash_entry *h)
4543{
4544 struct ppc_elf_dyn_relocs *p;
4545
4546 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4547 {
4548 asection *s = p->sec->output_section;
4549
4550 if (s != NULL
4551 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4552 == (SEC_READONLY | SEC_ALLOC)))
4553 return TRUE;
4554 }
4555 return FALSE;
4556}
4557
25dbc73a
AM
4558/* Adjust a symbol defined by a dynamic object and referenced by a
4559 regular object. The current definition is in some section of the
4560 dynamic object, but we're not including those sections. We have to
4561 change the definition to something the rest of the link can
4562 understand. */
7fce784e 4563
25dbc73a
AM
4564static bfd_boolean
4565ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4566 struct elf_link_hash_entry *h)
4567{
4568 struct ppc_elf_link_hash_table *htab;
4569 asection *s;
7fce784e 4570
25dbc73a
AM
4571#ifdef DEBUG
4572 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4573 h->root.root.string);
4574#endif
252b5132 4575
25dbc73a
AM
4576 /* Make sure we know what is going on here. */
4577 htab = ppc_elf_hash_table (info);
4578 BFD_ASSERT (htab->elf.dynobj != NULL
4579 && (h->needs_plt
4580 || h->u.weakdef != NULL
4581 || (h->def_dynamic
4582 && h->ref_regular
4583 && !h->def_regular)));
252b5132 4584
25dbc73a
AM
4585 /* Deal with function syms. */
4586 if (h->type == STT_FUNC
4587 || h->needs_plt)
4588 {
4589 /* Clear procedure linkage table information for any symbol that
4590 won't need a .plt entry. */
a6aa5195
AM
4591 struct plt_entry *ent;
4592 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4593 if (ent->plt.refcount > 0)
4594 break;
4595 if (ent == NULL
25dbc73a
AM
4596 || SYMBOL_CALLS_LOCAL (info, h)
4597 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4598 && h->root.type == bfd_link_hash_undefweak))
252b5132 4599 {
25dbc73a 4600 /* A PLT entry is not required/allowed when:
252b5132 4601
25dbc73a
AM
4602 1. We are not using ld.so; because then the PLT entry
4603 can't be set up, so we can't use one. In this case,
4604 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4605
25dbc73a
AM
4606 2. GC has rendered the entry unused.
4607
4608 3. We know for certain that a call to this symbol
4609 will go to this object, or will remain undefined. */
a6aa5195 4610 h->plt.plist = NULL;
25dbc73a
AM
4611 h->needs_plt = 0;
4612 }
625af618
AM
4613 else
4614 {
4615 /* After adjust_dynamic_symbol, non_got_ref set means that
4616 dyn_relocs for this symbol should be discarded.
4617 If we get here we know we are making a PLT entry for this
4618 symbol, and in an executable we'd normally resolve
4619 relocations against this symbol to the PLT entry. Allow
4620 dynamic relocs if the reference is weak, and the dynamic
4621 relocs will not cause text relocation. */
4622 if (!h->ref_regular_nonweak
4623 && h->non_got_ref
4624 && !htab->is_vxworks
4625 && !ppc_elf_hash_entry (h)->has_sda_refs
4626 && !readonly_dynrelocs (h))
4627 h->non_got_ref = 0;
4628 }
25dbc73a 4629 return TRUE;
252b5132 4630 }
25dbc73a 4631 else
a6aa5195 4632 h->plt.plist = NULL;
252b5132 4633
25dbc73a
AM
4634 /* If this is a weak symbol, and there is a real definition, the
4635 processor independent code will have arranged for us to see the
4636 real definition first, and we can just use the same value. */
4637 if (h->u.weakdef != NULL)
252b5132 4638 {
25dbc73a
AM
4639 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4640 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4641 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4642 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4643 if (ELIMINATE_COPY_RELOCS)
4644 h->non_got_ref = h->u.weakdef->non_got_ref;
4645 return TRUE;
4646 }
dc810e39 4647
25dbc73a
AM
4648 /* This is a reference to a symbol defined by a dynamic object which
4649 is not a function. */
252b5132 4650
25dbc73a
AM
4651 /* If we are creating a shared library, we must presume that the
4652 only references to the symbol are via the global offset table.
4653 For such cases we need not do anything here; the relocations will
4654 be handled correctly by relocate_section. */
4655 if (info->shared)
4656 return TRUE;
252b5132 4657
25dbc73a
AM
4658 /* If there are no references to this symbol that do not use the
4659 GOT, we don't need to generate a copy reloc. */
4660 if (!h->non_got_ref)
4661 return TRUE;
4662
cfd2c773
NS
4663 /* If we didn't find any dynamic relocs in read-only sections, then
4664 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4665 We can't do this if there are any small data relocations. This
4666 doesn't work on VxWorks, where we can not have dynamic
4667 relocations (other than copy and jump slot relocations) in an
4668 executable. */
4dc4a9a5 4669 if (ELIMINATE_COPY_RELOCS
cfd2c773 4670 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
4671 && !htab->is_vxworks
4672 && !h->def_regular
4673 && !readonly_dynrelocs (h))
25dbc73a 4674 {
625af618
AM
4675 h->non_got_ref = 0;
4676 return TRUE;
252b5132
RH
4677 }
4678
909272ee
AM
4679 if (h->size == 0)
4680 {
4681 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4682 h->root.root.string);
4683 return TRUE;
4684 }
4685
25dbc73a
AM
4686 /* We must allocate the symbol in our .dynbss section, which will
4687 become part of the .bss section of the executable. There will be
4688 an entry for this symbol in the .dynsym section. The dynamic
4689 object will contain position independent code, so all references
4690 from the dynamic object to this symbol will go through the global
4691 offset table. The dynamic linker will use the .dynsym entry to
4692 determine the address it must put in the global offset table, so
4693 both the dynamic object and the regular object will refer to the
4694 same memory location for the variable.
4695
4dc4a9a5
DJ
4696 Of course, if the symbol is referenced using SDAREL relocs, we
4697 must instead allocate it in .sbss. */
25dbc73a 4698
4dc4a9a5 4699 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
4700 s = htab->dynsbss;
4701 else
4702 s = htab->dynbss;
4703 BFD_ASSERT (s != NULL);
4704
4705 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4706 copy the initial value out of the dynamic object and into the
4707 runtime process image. We need to remember the offset into the
4708 .rela.bss section we are going to use. */
4709 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4710 {
4711 asection *srel;
4712
4dc4a9a5 4713 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
4714 srel = htab->relsbss;
4715 else
4716 srel = htab->relbss;
4717 BFD_ASSERT (srel != NULL);
4718 srel->size += sizeof (Elf32_External_Rela);
4719 h->needs_copy = 1;
4720 }
7619e7c7 4721
027297b7 4722 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM
4723}
4724\f
ac39eb42
AM
4725/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4726 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4727 specifying the addend on the plt relocation. For -fpic code, the sym
4728 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4729 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
4730
4731static bfd_boolean
4732add_stub_sym (struct plt_entry *ent,
4733 struct elf_link_hash_entry *h,
ac39eb42 4734 struct bfd_link_info *info)
0ba07910
AM
4735{
4736 struct elf_link_hash_entry *sh;
4737 size_t len1, len2, len3;
4738 char *name;
ac39eb42
AM
4739 const char *stub;
4740 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4741
4742 if (info->shared || info->pie)
4743 stub = ".plt_pic32.";
4744 else
4745 stub = ".plt_call32.";
0ba07910
AM
4746
4747 len1 = strlen (h->root.root.string);
ac39eb42 4748 len2 = strlen (stub);
0ba07910
AM
4749 len3 = 0;
4750 if (ent->sec)
4751 len3 = strlen (ent->sec->name);
ac39eb42 4752 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
4753 if (name == NULL)
4754 return FALSE;
4755 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4756 if (ent->sec)
4757 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
4758 memcpy (name + 8 + len3, stub, len2);
4759 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
4760 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4761 if (sh == NULL)
4762 return FALSE;
4763 if (sh->root.type == bfd_link_hash_new)
4764 {
4765 sh->root.type = bfd_link_hash_defined;
4766 sh->root.u.def.section = htab->glink;
4767 sh->root.u.def.value = ent->glink_offset;
4768 sh->ref_regular = 1;
4769 sh->def_regular = 1;
4770 sh->ref_regular_nonweak = 1;
4771 sh->forced_local = 1;
4772 sh->non_elf = 0;
4773 }
4774 return TRUE;
4775}
4776
3b36f7e6
AM
4777/* Allocate NEED contiguous space in .got, and return the offset.
4778 Handles allocation of the got header when crossing 32k. */
4779
4780static bfd_vma
4781allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4782{
4783 bfd_vma where;
4a3dc543 4784 unsigned int max_before_header;
3b36f7e6 4785
4a3dc543 4786 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB
4787 {
4788 where = htab->got->size;
4789 htab->got->size += need;
4790 }
3b36f7e6
AM
4791 else
4792 {
4a3dc543
RS
4793 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4794 if (need <= htab->got_gap)
3b36f7e6 4795 {
4a3dc543
RS
4796 where = max_before_header - htab->got_gap;
4797 htab->got_gap -= need;
4798 }
4799 else
4800 {
4801 if (htab->got->size + need > max_before_header
4802 && htab->got->size <= max_before_header)
4803 {
4804 htab->got_gap = max_before_header - htab->got->size;
4805 htab->got->size = max_before_header + htab->got_header_size;
4806 }
4807 where = htab->got->size;
4808 htab->got->size += need;
3b36f7e6 4809 }
3b36f7e6
AM
4810 }
4811 return where;
4812}
4813
25dbc73a 4814/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 4815
b34976b6 4816static bfd_boolean
25dbc73a 4817allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 4818{
25dbc73a
AM
4819 struct bfd_link_info *info = inf;
4820 struct ppc_elf_link_hash_entry *eh;
7619e7c7 4821 struct ppc_elf_link_hash_table *htab;
25dbc73a 4822 struct ppc_elf_dyn_relocs *p;
252b5132 4823
25dbc73a 4824 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4825 return TRUE;
252b5132 4826
25dbc73a
AM
4827 if (h->root.type == bfd_link_hash_warning)
4828 /* When warning symbols are created, they **replace** the "real"
4829 entry in the hash table, thus we never get to see the real
4830 symbol in a hash traversal. So look at it now. */
4831 h = (struct elf_link_hash_entry *) h->root.u.i.link;
e47cd125 4832
7619e7c7 4833 htab = ppc_elf_hash_table (info);
a6aa5195 4834 if (htab->elf.dynamic_sections_created)
252b5132 4835 {
a6aa5195
AM
4836 struct plt_entry *ent;
4837 bfd_boolean doneone = FALSE;
28e99bb6
AM
4838 bfd_vma plt_offset = 0, glink_offset = 0;
4839
a6aa5195
AM
4840 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4841 if (ent->plt.refcount > 0)
4842 {
4843 /* Make sure this symbol is output as a dynamic symbol. */
4844 if (h->dynindx == -1
4845 && !h->forced_local)
4846 {
4847 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4848 return FALSE;
4849 }
252b5132 4850
a6aa5195
AM
4851 if (info->shared
4852 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4853 {
4854 asection *s = htab->plt;
7619e7c7 4855
4a3dc543 4856 if (htab->plt_type == PLT_NEW)
a6aa5195 4857 {
a6aa5195 4858 if (!doneone)
28e99bb6
AM
4859 {
4860 plt_offset = s->size;
4861 s->size += 4;
4862 }
4863 ent->plt.offset = plt_offset;
d7128ce4 4864
a6aa5195 4865 s = htab->glink;
28e99bb6
AM
4866 if (!doneone || info->shared || info->pie)
4867 {
4868 glink_offset = s->size;
4869 s->size += GLINK_ENTRY_SIZE;
4870 }
4871 if (!doneone
4872 && !info->shared
625af618 4873 && h->def_dynamic
a6aa5195
AM
4874 && !h->def_regular)
4875 {
4876 h->root.u.def.section = s;
28e99bb6 4877 h->root.u.def.value = glink_offset;
a6aa5195 4878 }
28e99bb6 4879 ent->glink_offset = glink_offset;
0ba07910
AM
4880
4881 if (htab->emit_stub_syms
ac39eb42 4882 && !add_stub_sym (ent, h, info))
0ba07910 4883 return FALSE;
a6aa5195
AM
4884 }
4885 else
4886 {
a6aa5195
AM
4887 if (!doneone)
4888 {
28e99bb6
AM
4889 /* If this is the first .plt entry, make room
4890 for the special first entry. */
4891 if (s->size == 0)
9d8504b1 4892 s->size += htab->plt_initial_entry_size;
28e99bb6
AM
4893
4894 /* The PowerPC PLT is actually composed of two
4895 parts, the first part is 2 words (for a load
4896 and a jump), and then there is a remaining
4897 word available at the end. */
9d8504b1
PB
4898 plt_offset = (htab->plt_initial_entry_size
4899 + (htab->plt_slot_size
4900 * ((s->size
4901 - htab->plt_initial_entry_size)
4902 / htab->plt_entry_size)));
28e99bb6
AM
4903
4904 /* If this symbol is not defined in a regular
4905 file, and we are not generating a shared
4906 library, then set the symbol to this location
4907 in the .plt. This is required to make
4908 function pointers compare as equal between
4909 the normal executable and the shared library. */
4910 if (! info->shared
625af618 4911 && h->def_dynamic
28e99bb6
AM
4912 && !h->def_regular)
4913 {
4914 h->root.u.def.section = s;
4915 h->root.u.def.value = plt_offset;
4916 }
4917
9d8504b1
PB
4918 /* Make room for this entry. */
4919 s->size += htab->plt_entry_size;
4920 /* After the 8192nd entry, room for two entries
4921 is allocated. */
4a3dc543 4922 if (htab->plt_type == PLT_OLD
9d8504b1
PB
4923 && (s->size - htab->plt_initial_entry_size)
4924 / htab->plt_entry_size
4925 > PLT_NUM_SINGLE_ENTRIES)
4926 s->size += htab->plt_entry_size;
a6aa5195 4927 }
28e99bb6 4928 ent->plt.offset = plt_offset;
a6aa5195 4929 }
25dbc73a 4930
a6aa5195
AM
4931 /* We also need to make an entry in the .rela.plt section. */
4932 if (!doneone)
4933 {
4934 htab->relplt->size += sizeof (Elf32_External_Rela);
9d8504b1 4935
4a3dc543 4936 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB
4937 {
4938 /* Allocate space for the unloaded relocations. */
4939 if (!info->shared)
4940 {
4941 if (ent->plt.offset
4942 == (bfd_vma) htab->plt_initial_entry_size)
4943 {
4944 htab->srelplt2->size
4945 += sizeof (Elf32_External_Rela)
4946 * VXWORKS_PLTRESOLVE_RELOCS;
4947 }
4948
4949 htab->srelplt2->size
4950 += sizeof (Elf32_External_Rela)
4951 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4952 }
4953
4954 /* Every PLT entry has an associated GOT entry in
4955 .got.plt. */
4956 htab->sgotplt->size += 4;
4957 }
a6aa5195
AM
4958 doneone = TRUE;
4959 }
4960 }
4961 else
4962 ent->plt.offset = (bfd_vma) -1;
a6aa5195 4963 }
2ce859a1
AM
4964 else
4965 ent->plt.offset = (bfd_vma) -1;
4966
4967 if (!doneone)
4968 {
4969 h->plt.plist = NULL;
4970 h->needs_plt = 0;
4971 }
25dbc73a
AM
4972 }
4973 else
4974 {
a6aa5195 4975 h->plt.plist = NULL;
25dbc73a
AM
4976 h->needs_plt = 0;
4977 }
4978
4979 eh = (struct ppc_elf_link_hash_entry *) h;
4980 if (eh->elf.got.refcount > 0)
4981 {
4982 /* Make sure this symbol is output as a dynamic symbol. */
4983 if (eh->elf.dynindx == -1
4984 && !eh->elf.forced_local)
4985 {
4986 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 4987 return FALSE;
25dbc73a 4988 }
252b5132 4989
25dbc73a
AM
4990 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4991 && !eh->elf.def_dynamic)
b7fcf6f6
AM
4992 {
4993 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4994 htab->tlsld_got.refcount += 1;
4995 eh->elf.got.offset = (bfd_vma) -1;
4996 }
25dbc73a
AM
4997 else
4998 {
4999 bfd_boolean dyn;
3b36f7e6 5000 unsigned int need = 0;
25dbc73a 5001 if ((eh->tls_mask & TLS_TLS) != 0)
252b5132 5002 {
25dbc73a 5003 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6 5004 need += 8;
25dbc73a 5005 if ((eh->tls_mask & TLS_GD) != 0)
3b36f7e6 5006 need += 8;
25dbc73a 5007 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 5008 need += 4;
25dbc73a 5009 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5010 need += 4;
252b5132 5011 }
25dbc73a 5012 else
3b36f7e6
AM
5013 need += 4;
5014 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM
5015 dyn = htab->elf.dynamic_sections_created;
5016 if ((info->shared
5017 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5018 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5019 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 5020 {
3b36f7e6
AM
5021 /* All the entries we allocated need relocs.
5022 Except LD only needs one. */
25dbc73a 5023 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6
AM
5024 need -= 4;
5025 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 5026 }
25dbc73a
AM
5027 }
5028 }
5029 else
5030 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5031
25dbc73a
AM
5032 if (eh->dyn_relocs == NULL)
5033 return TRUE;
252b5132 5034
25dbc73a
AM
5035 /* In the shared -Bsymbolic case, discard space allocated for
5036 dynamic pc-relative relocs against symbols which turn out to be
5037 defined in regular objects. For the normal shared case, discard
5038 space for relocs that have become local due to symbol visibility
5039 changes. */
5040
5041 if (info->shared)
5042 {
5043 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5044 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
5045 generated via assembly. We want calls to protected symbols to
5046 resolve directly to the function rather than going via the plt.
5047 If people want function pointer comparisons to work as expected
5048 then they should avoid writing weird assembly. */
5049 if (SYMBOL_CALLS_LOCAL (info, h))
5050 {
5051 struct ppc_elf_dyn_relocs **pp;
5052
5053 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5054 {
25dbc73a
AM
5055 p->count -= p->pc_count;
5056 p->pc_count = 0;
5057 if (p->count == 0)
5058 *pp = p->next;
5059 else
5060 pp = &p->next;
252b5132 5061 }
25dbc73a 5062 }
252b5132 5063
3348747a
NS
5064 if (htab->is_vxworks)
5065 {
5066 struct ppc_elf_dyn_relocs **pp;
5067
5068 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5069 {
5070 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5071 *pp = p->next;
5072 else
5073 pp = &p->next;
5074 }
5075 }
5076
89200bf8
AM
5077 /* Discard relocs on undefined symbols that must be local. */
5078 if (eh->dyn_relocs != NULL
5079 && h->root.type == bfd_link_hash_undefined
5080 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5081 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5082 eh->dyn_relocs = NULL;
5083
25dbc73a
AM
5084 /* Also discard relocs on undefined weak syms with non-default
5085 visibility. */
cab87ef9
AM
5086 if (eh->dyn_relocs != NULL
5087 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 5088 {
dfbb6ac9
AM
5089 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5090 eh->dyn_relocs = NULL;
5091
5092 /* Make sure undefined weak symbols are output as a dynamic
5093 symbol in PIEs. */
5094 else if (h->dynindx == -1
5095 && !h->forced_local)
5096 {
5097 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5098 return FALSE;
5099 }
25dbc73a
AM
5100 }
5101 }
5102 else if (ELIMINATE_COPY_RELOCS)
5103 {
5104 /* For the non-shared case, discard space for relocs against
5105 symbols which turn out to need copy relocs or are not
5106 dynamic. */
7619e7c7 5107
25dbc73a 5108 if (!h->non_got_ref
25dbc73a
AM
5109 && !h->def_regular)
5110 {
5111 /* Make sure this symbol is output as a dynamic symbol.
5112 Undefined weak syms won't yet be marked as dynamic. */
5113 if (h->dynindx == -1
5114 && !h->forced_local)
5115 {
5116 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5117 return FALSE;
5118 }
7619e7c7 5119
25dbc73a
AM
5120 /* If that succeeded, we know we'll be keeping all the
5121 relocs. */
5122 if (h->dynindx != -1)
5123 goto keep;
5124 }
252b5132 5125
25dbc73a 5126 eh->dyn_relocs = NULL;
252b5132 5127
25dbc73a
AM
5128 keep: ;
5129 }
252b5132 5130
25dbc73a
AM
5131 /* Finally, allocate space. */
5132 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5133 {
5134 asection *sreloc = elf_section_data (p->sec)->sreloc;
5135 sreloc->size += p->count * sizeof (Elf32_External_Rela);
5136 }
252b5132 5137
25dbc73a
AM
5138 return TRUE;
5139}
7619e7c7 5140
625af618
AM
5141/* Set DF_TEXTREL if we find any dynamic relocs that apply to
5142 read-only sections. */
7619e7c7 5143
25dbc73a 5144static bfd_boolean
625af618 5145maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 5146{
25dbc73a
AM
5147 if (h->root.type == bfd_link_hash_indirect)
5148 return TRUE;
252b5132 5149
25dbc73a
AM
5150 if (h->root.type == bfd_link_hash_warning)
5151 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5152
625af618 5153 if (readonly_dynrelocs (h))
25dbc73a 5154 {
625af618 5155 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 5156
625af618
AM
5157 /* Not an error, just cut short the traversal. */
5158 return FALSE;
25dbc73a
AM
5159 }
5160 return TRUE;
5161}
5162
5163/* Set the sizes of the dynamic sections. */
5164
5165static bfd_boolean
5166ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5167 struct bfd_link_info *info)
5168{
5169 struct ppc_elf_link_hash_table *htab;
5170 asection *s;
5171 bfd_boolean relocs;
5172 bfd *ibfd;
7fce784e 5173
252b5132 5174#ifdef DEBUG
25dbc73a 5175 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 5176#endif
252b5132 5177
25dbc73a
AM
5178 htab = ppc_elf_hash_table (info);
5179 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 5180
25dbc73a
AM
5181 if (elf_hash_table (info)->dynamic_sections_created)
5182 {
5183 /* Set the contents of the .interp section to the interpreter. */
5184 if (info->executable)
5185 {
5186 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
5187 BFD_ASSERT (s != NULL);
5188 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5189 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5190 }
5191 }
252b5132 5192
4a3dc543 5193 if (htab->plt_type == PLT_OLD)
d7128ce4 5194 htab->got_header_size = 16;
4a3dc543 5195 else if (htab->plt_type == PLT_NEW)
d7128ce4 5196 htab->got_header_size = 12;
252b5132 5197
25dbc73a
AM
5198 /* Set up .got offsets for local syms, and space for local dynamic
5199 relocs. */
5200 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5201 {
5202 bfd_signed_vma *local_got;
5203 bfd_signed_vma *end_local_got;
5204 char *lgot_masks;
5205 bfd_size_type locsymcount;
5206 Elf_Internal_Shdr *symtab_hdr;
7fce784e 5207
0c8d6e5c 5208 if (!is_ppc_elf (ibfd))
25dbc73a 5209 continue;
7fce784e 5210
25dbc73a
AM
5211 for (s = ibfd->sections; s != NULL; s = s->next)
5212 {
5213 struct ppc_elf_dyn_relocs *p;
252b5132 5214
25dbc73a
AM
5215 for (p = ((struct ppc_elf_dyn_relocs *)
5216 elf_section_data (s)->local_dynrel);
5217 p != NULL;
5218 p = p->next)
5219 {
5220 if (!bfd_is_abs_section (p->sec)
5221 && bfd_is_abs_section (p->sec->output_section))
5222 {
5223 /* Input section has been discarded, either because
5224 it is a copy of a linkonce section or due to
5225 linker script /DISCARD/, so we'll be discarding
5226 the relocs too. */
7fce784e 5227 }
3348747a
NS
5228 else if (htab->is_vxworks
5229 && strcmp (p->sec->output_section->name,
5230 ".tls_vars") == 0)
5231 {
5232 /* Relocations in vxworks .tls_vars sections are
5233 handled specially by the loader. */
5234 }
25dbc73a 5235 else if (p->count != 0)
7fce784e 5236 {
25dbc73a
AM
5237 elf_section_data (p->sec)->sreloc->size
5238 += p->count * sizeof (Elf32_External_Rela);
5239 if ((p->sec->output_section->flags
5240 & (SEC_READONLY | SEC_ALLOC))
5241 == (SEC_READONLY | SEC_ALLOC))
5242 info->flags |= DF_TEXTREL;
7fce784e 5243 }
252b5132 5244 }
252b5132 5245 }
252b5132 5246
25dbc73a
AM
5247 local_got = elf_local_got_refcounts (ibfd);
5248 if (!local_got)
5249 continue;
252b5132 5250
0ffa91dd 5251 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
5252 locsymcount = symtab_hdr->sh_info;
5253 end_local_got = local_got + locsymcount;
5254 lgot_masks = (char *) end_local_got;
25dbc73a
AM
5255 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
5256 if (*local_got > 0)
5257 {
5258 if (*lgot_masks == (TLS_TLS | TLS_LD))
5259 {
5260 /* If just an LD reloc, we'll just use
5261 htab->tlsld_got.offset. */
3b36f7e6 5262 htab->tlsld_got.refcount += 1;
25dbc73a
AM
5263 *local_got = (bfd_vma) -1;
5264 }
5265 else
5266 {
3b36f7e6 5267 unsigned int need = 0;
25dbc73a
AM
5268 if ((*lgot_masks & TLS_TLS) != 0)
5269 {
5270 if ((*lgot_masks & TLS_GD) != 0)
3b36f7e6 5271 need += 8;
25dbc73a 5272 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 5273 need += 4;
25dbc73a 5274 if ((*lgot_masks & TLS_DTPREL) != 0)
3b36f7e6 5275 need += 4;
25dbc73a
AM
5276 }
5277 else
3b36f7e6
AM
5278 need += 4;
5279 *local_got = allocate_got (htab, need);
25dbc73a 5280 if (info->shared)
3b36f7e6
AM
5281 htab->relgot->size += (need
5282 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM
5283 }
5284 }
5285 else
5286 *local_got = (bfd_vma) -1;
5287 }
252b5132 5288
b7fcf6f6
AM
5289 /* Allocate space for global sym dynamic relocs. */
5290 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
5291
3b36f7e6
AM
5292 if (htab->tlsld_got.refcount > 0)
5293 {
5294 htab->tlsld_got.offset = allocate_got (htab, 8);
5295 if (info->shared)
5296 htab->relgot->size += sizeof (Elf32_External_Rela);
5297 }
5298 else
5299 htab->tlsld_got.offset = (bfd_vma) -1;
5300
4a3dc543 5301 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
5302 {
5303 unsigned int g_o_t = 32768;
5304
4d962050
AM
5305 /* If we haven't allocated the header, do so now. When we get here,
5306 for old plt/got the got size will be 0 to 32764 (not allocated),
5307 or 32780 to 65536 (header allocated). For new plt/got, the
5308 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM
5309 if (htab->got->size <= 32768)
5310 {
5311 g_o_t = htab->got->size;
4a3dc543 5312 if (htab->plt_type == PLT_OLD)
4d962050 5313 g_o_t += 4;
3b36f7e6
AM
5314 htab->got->size += htab->got_header_size;
5315 }
3b36f7e6
AM
5316
5317 htab->elf.hgot->root.u.def.value = g_o_t;
5318 }
5319
d7128ce4
AM
5320 if (htab->glink != NULL && htab->glink->size != 0)
5321 {
5322 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM
5323 /* Space for the branch table. */
5324 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
5325 /* Pad out to align the start of PLTresolve. */
5326 htab->glink->size += -htab->glink->size & 15;
d7128ce4 5327 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM
5328
5329 if (htab->emit_stub_syms)
5330 {
5331 struct elf_link_hash_entry *sh;
5332 sh = elf_link_hash_lookup (&htab->elf, "__glink",
5333 TRUE, FALSE, FALSE);
5334 if (sh == NULL)
5335 return FALSE;
5336 if (sh->root.type == bfd_link_hash_new)
5337 {
5338 sh->root.type = bfd_link_hash_defined;
5339 sh->root.u.def.section = htab->glink;
5340 sh->root.u.def.value = htab->glink_pltresolve;
5341 sh->ref_regular = 1;
5342 sh->def_regular = 1;
5343 sh->ref_regular_nonweak = 1;
5344 sh->forced_local = 1;
5345 sh->non_elf = 0;
5346 }
5347 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5348 TRUE, FALSE, FALSE);
5349 if (sh == NULL)
5350 return FALSE;
5351 if (sh->root.type == bfd_link_hash_new)
5352 {
5353 sh->root.type = bfd_link_hash_defined;
5354 sh->root.u.def.section = htab->glink;
5355 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5356 sh->ref_regular = 1;
5357 sh->def_regular = 1;
5358 sh->ref_regular_nonweak = 1;
5359 sh->forced_local = 1;
5360 sh->non_elf = 0;
5361 }
5362 }
d7128ce4
AM
5363 }
5364
25dbc73a
AM
5365 /* We've now determined the sizes of the various dynamic sections.
5366 Allocate memory for them. */
5367 relocs = FALSE;
5368 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 5369 {
9d8504b1
PB
5370 bfd_boolean strip_section = TRUE;
5371
25dbc73a
AM
5372 if ((s->flags & SEC_LINKER_CREATED) == 0)
5373 continue;
252b5132 5374
25dbc73a 5375 if (s == htab->plt
d7128ce4 5376 || s == htab->glink
644285ef 5377 || s == htab->got
9d8504b1 5378 || s == htab->sgotplt
c456f082
AM
5379 || s == htab->sbss
5380 || s == htab->dynbss
5381 || s == htab->dynsbss)
25dbc73a 5382 {
9d8504b1
PB
5383 /* We'd like to strip these sections if they aren't needed, but if
5384 we've exported dynamic symbols from them we must leave them.
5385 It's too late to tell BFD to get rid of the symbols. */
7325306f 5386 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
9d8504b1 5387 strip_section = FALSE;
25dbc73a
AM
5388 /* Strip this section if we don't need it; see the
5389 comment below. */
5390 }
c9a2f333
AM
5391 else if (s == htab->sdata[0].section
5392 || s == htab->sdata[1].section)
25dbc73a 5393 {
c9a2f333 5394 /* Strip these too. */
25dbc73a 5395 }
0112cd26 5396 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
25dbc73a 5397 {
c456f082 5398 if (s->size != 0)
25dbc73a
AM
5399 {
5400 /* Remember whether there are any relocation sections. */
5401 relocs = TRUE;
252b5132 5402
25dbc73a
AM
5403 /* We use the reloc_count field as a counter if we need
5404 to copy relocs into the output file. */
5405 s->reloc_count = 0;
252b5132
RH
5406 }
5407 }
25dbc73a
AM
5408 else
5409 {
5410 /* It's not one of our sections, so don't allocate space. */
5411 continue;
5412 }
252b5132 5413
9d8504b1 5414 if (s->size == 0 && strip_section)
25dbc73a 5415 {
c456f082
AM
5416 /* If we don't need this section, strip it from the
5417 output file. This is mostly to handle .rela.bss and
5418 .rela.plt. We must create both sections in
5419 create_dynamic_sections, because they must be created
5420 before the linker maps input sections to output
5421 sections. The linker does that before
5422 adjust_dynamic_symbol is called, and it is that
5423 function which decides whether anything needs to go
5424 into these sections. */
8423293d 5425 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
5426 continue;
5427 }
7fce784e 5428
d7128ce4 5429 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
5430 continue;
5431
25dbc73a
AM
5432 /* Allocate memory for the section contents. */
5433 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5434 if (s->contents == NULL)
5435 return FALSE;
5436 }
252b5132 5437
25dbc73a 5438 if (htab->elf.dynamic_sections_created)
7619e7c7 5439 {
25dbc73a
AM
5440 /* Add some entries to the .dynamic section. We fill in the
5441 values later, in ppc_elf_finish_dynamic_sections, but we
5442 must add the entries now so that we get the correct size for
5443 the .dynamic section. The DT_DEBUG entry is filled in by the
5444 dynamic linker and used by the debugger. */
5445#define add_dynamic_entry(TAG, VAL) \
5446 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 5447
25dbc73a 5448 if (info->executable)
7619e7c7 5449 {
25dbc73a
AM
5450 if (!add_dynamic_entry (DT_DEBUG, 0))
5451 return FALSE;
7619e7c7
AM
5452 }
5453
25dbc73a 5454 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 5455 {
25dbc73a
AM
5456 if (!add_dynamic_entry (DT_PLTGOT, 0)
5457 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5458 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5459 || !add_dynamic_entry (DT_JMPREL, 0))
5460 return FALSE;
5461 }
7619e7c7 5462
d7128ce4
AM
5463 if (htab->glink != NULL && htab->glink->size != 0)
5464 {
1fe44d79 5465 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4
AM
5466 return FALSE;
5467 }
5468
25dbc73a
AM
5469 if (relocs)
5470 {
5471 if (!add_dynamic_entry (DT_RELA, 0)
5472 || !add_dynamic_entry (DT_RELASZ, 0)
5473 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5474 return FALSE;
5475 }
7619e7c7 5476
25dbc73a
AM
5477 /* If any dynamic relocs apply to a read-only section, then we
5478 need a DT_TEXTREL entry. */
5479 if ((info->flags & DF_TEXTREL) == 0)
625af618 5480 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 5481 info);
7619e7c7 5482
25dbc73a
AM
5483 if ((info->flags & DF_TEXTREL) != 0)
5484 {
5485 if (!add_dynamic_entry (DT_TEXTREL, 0))
5486 return FALSE;
7619e7c7 5487 }
7a2b07ff
NS
5488 if (htab->is_vxworks
5489 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
5490 return FALSE;
5491 }
25dbc73a
AM
5492#undef add_dynamic_entry
5493
7619e7c7
AM
5494 return TRUE;
5495}
0eb4a168
AM
5496
5497/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
5498
5499static bfd_boolean
5500ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
5501{
5502 if (h->plt.plist != NULL
5503 && !h->def_regular
5504 && (!h->pointer_equality_needed
5505 || !h->ref_regular_nonweak))
5506 return FALSE;
5507
5508 return _bfd_elf_hash_symbol (h);
5509}
25dbc73a
AM
5510\f
5511#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5512
5513static const int shared_stub_entry[] =
5514 {
5515 0x7c0802a6, /* mflr 0 */
5516 0x429f0005, /* bcl 20, 31, .Lxxx */
5517 0x7d6802a6, /* mflr 11 */
5518 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5519 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5520 0x7c0803a6, /* mtlr 0 */
5521 0x7d6903a6, /* mtctr 11 */
5522 0x4e800420, /* bctr */
5523 };
5524
5525static const int stub_entry[] =
5526 {
5527 0x3d600000, /* lis 11,xxx@ha */
5528 0x396b0000, /* addi 11,11,xxx@l */
5529 0x7d6903a6, /* mtctr 11 */
5530 0x4e800420, /* bctr */
5531 };
5532
5533static bfd_boolean
5534ppc_elf_relax_section (bfd *abfd,
5535 asection *isec,
5536 struct bfd_link_info *link_info,
5537 bfd_boolean *again)
5538{
5539 struct one_fixup
5540 {
5541 struct one_fixup *next;
5542 asection *tsec;
5543 bfd_vma toff;
5544 bfd_vma trampoff;
5545 };
7619e7c7 5546
25dbc73a
AM
5547 Elf_Internal_Shdr *symtab_hdr;
5548 bfd_byte *contents = NULL;
5549 Elf_Internal_Sym *isymbuf = NULL;
5550 Elf_Internal_Rela *internal_relocs = NULL;
5551 Elf_Internal_Rela *irel, *irelend;
5552 struct one_fixup *fixups = NULL;
5553 bfd_boolean changed;
d7128ce4 5554 struct ppc_elf_link_hash_table *htab;
25dbc73a 5555 bfd_size_type trampoff;
a6aa5195 5556 asection *got2;
7619e7c7 5557
25dbc73a 5558 *again = FALSE;
7619e7c7 5559
c87b5a93
AM
5560 /* Nothing to do if there are no relocations, and no need to do
5561 anything with non-alloc sections. */
5562 if ((isec->flags & SEC_ALLOC) == 0
5563 || (isec->flags & SEC_RELOC) == 0
5564 || isec->reloc_count == 0)
25dbc73a 5565 return TRUE;
7619e7c7 5566
25dbc73a
AM
5567 trampoff = (isec->size + 3) & (bfd_vma) -4;
5568 /* Space for a branch around any trampolines. */
5569 trampoff += 4;
7619e7c7 5570
0ffa91dd 5571 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 5572
25dbc73a
AM
5573 /* Get a copy of the native relocations. */
5574 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5575 link_info->keep_memory);
5576 if (internal_relocs == NULL)
5577 goto error_return;
7619e7c7 5578
d7128ce4 5579 htab = ppc_elf_hash_table (link_info);
a6aa5195 5580 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 5581
a6aa5195 5582 irelend = internal_relocs + isec->reloc_count;
25dbc73a 5583 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 5584 {
25dbc73a
AM
5585 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5586 bfd_vma symaddr, reladdr, toff, roff;
5587 asection *tsec;
5588 struct one_fixup *f;
5589 size_t insn_offset = 0;
5590 bfd_vma max_branch_offset, val;
5591 bfd_byte *hit_addr;
5592 unsigned long t0;
5593 unsigned char sym_type;
7619e7c7 5594
25dbc73a
AM
5595 switch (r_type)
5596 {
5597 case R_PPC_REL24:
5598 case R_PPC_LOCAL24PC:
5599 case R_PPC_PLTREL24:
5600 max_branch_offset = 1 << 25;
5601 break;
7619e7c7 5602
25dbc73a
AM
5603 case R_PPC_REL14:
5604 case R_PPC_REL14_BRTAKEN:
5605 case R_PPC_REL14_BRNTAKEN:
5606 max_branch_offset = 1 << 15;
5607 break;
7619e7c7 5608
25dbc73a
AM
5609 default:
5610 continue;
5611 }
7619e7c7 5612
25dbc73a
AM
5613 /* Get the value of the symbol referred to by the reloc. */
5614 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5615 {
5616 /* A local symbol. */
5617 Elf_Internal_Sym *isym;
7fce784e 5618
25dbc73a
AM
5619 /* Read this BFD's local symbols. */
5620 if (isymbuf == NULL)
5621 {
5622 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5623 if (isymbuf == NULL)
5624 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5625 symtab_hdr->sh_info, 0,
5626 NULL, NULL, NULL);
5627 if (isymbuf == 0)
5628 goto error_return;
5629 }
5630 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5631 if (isym->st_shndx == SHN_UNDEF)
5632 continue; /* We can't do anything with undefined symbols. */
5633 else if (isym->st_shndx == SHN_ABS)
5634 tsec = bfd_abs_section_ptr;
5635 else if (isym->st_shndx == SHN_COMMON)
5636 tsec = bfd_com_section_ptr;
5637 else
5638 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 5639
25dbc73a
AM
5640 toff = isym->st_value;
5641 sym_type = ELF_ST_TYPE (isym->st_info);
5642 }
5643 else
5644 {
5645 /* Global symbol handling. */
5646 unsigned long indx;
5647 struct elf_link_hash_entry *h;
7619e7c7 5648
25dbc73a
AM
5649 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5650 h = elf_sym_hashes (abfd)[indx];
7619e7c7 5651
25dbc73a
AM
5652 while (h->root.type == bfd_link_hash_indirect
5653 || h->root.type == bfd_link_hash_warning)
5654 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5655
a6aa5195
AM
5656 tsec = NULL;
5657 toff = 0;
25dbc73a 5658 if (r_type == R_PPC_PLTREL24
a6aa5195 5659 && htab->plt != NULL)
25dbc73a 5660 {
a6aa5195
AM
5661 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5662
5663 if (ent != NULL)
d7128ce4 5664 {
4a3dc543 5665 if (htab->plt_type == PLT_NEW)
a6aa5195
AM
5666 {
5667 tsec = htab->glink;
5668 toff = ent->glink_offset;
5669 }
5670 else
5671 {
5672 tsec = htab->plt;
5673 toff = ent->plt.offset;
5674 }
d7128ce4 5675 }
25dbc73a 5676 }
a6aa5195
AM
5677 if (tsec != NULL)
5678 ;
25dbc73a
AM
5679 else if (h->root.type == bfd_link_hash_defined
5680 || h->root.type == bfd_link_hash_defweak)
5681 {
5682 tsec = h->root.u.def.section;
5683 toff = h->root.u.def.value;
5684 }
5685 else
5686 continue;
7619e7c7 5687
25dbc73a
AM
5688 sym_type = h->type;
5689 }
7619e7c7 5690
25dbc73a
AM
5691 /* If the branch and target are in the same section, you have
5692 no hope of adding stubs. We'll error out later should the
5693 branch overflow. */
5694 if (tsec == isec)
5695 continue;
5696
5697 /* There probably isn't any reason to handle symbols in
5698 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5699 attribute for a code section, and we are only looking at
5700 branches. However, implement it correctly here as a
5701 reference for other target relax_section functions. */
5702 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5703 {
5704 /* At this stage in linking, no SEC_MERGE symbol has been
5705 adjusted, so all references to such symbols need to be
5706 passed through _bfd_merged_section_offset. (Later, in
5707 relocate_section, all SEC_MERGE symbols *except* for
5708 section symbols have been adjusted.)
5709
5710 gas may reduce relocations against symbols in SEC_MERGE
5711 sections to a relocation against the section symbol when
5712 the original addend was zero. When the reloc is against
5713 a section symbol we should include the addend in the
5714 offset passed to _bfd_merged_section_offset, since the
5715 location of interest is the original symbol. On the
5716 other hand, an access to "sym+addend" where "sym" is not
5717 a section symbol should not include the addend; Such an
5718 access is presumed to be an offset from "sym"; The
5719 location of interest is just "sym". */
5720 if (sym_type == STT_SECTION)
5721 toff += irel->r_addend;
7619e7c7 5722
25dbc73a
AM
5723 toff = _bfd_merged_section_offset (abfd, &tsec,
5724 elf_section_data (tsec)->sec_info,
5725 toff);
7619e7c7 5726
25dbc73a
AM
5727 if (sym_type != STT_SECTION)
5728 toff += irel->r_addend;
5729 }
a6aa5195
AM
5730 /* PLTREL24 addends are special. */
5731 else if (r_type != R_PPC_PLTREL24)
25dbc73a 5732 toff += irel->r_addend;
7619e7c7 5733
7de713b9
AM
5734 /* Attempted -shared link of non-pic code loses. */
5735 if (tsec->output_section == NULL)
5736 continue;
5737
25dbc73a 5738 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7619e7c7 5739
25dbc73a
AM
5740 roff = irel->r_offset;
5741 reladdr = isec->output_section->vma + isec->output_offset + roff;
7619e7c7 5742
25dbc73a
AM
5743 /* If the branch is in range, no need to do anything. */
5744 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5745 continue;
252b5132 5746
25dbc73a
AM
5747 /* Look for an existing fixup to this address. */
5748 for (f = fixups; f ; f = f->next)
5749 if (f->tsec == tsec && f->toff == toff)
5750 break;
5751
5752 if (f == NULL)
7619e7c7 5753 {
25dbc73a
AM
5754 size_t size;
5755 unsigned long stub_rtype;
252b5132 5756
25dbc73a
AM
5757 val = trampoff - roff;
5758 if (val >= max_branch_offset)
5759 /* Oh dear, we can't reach a trampoline. Don't try to add
5760 one. We'll report an error later. */
5761 continue;
252b5132 5762
25dbc73a
AM
5763 if (link_info->shared)
5764 {
5765 size = 4 * ARRAY_SIZE (shared_stub_entry);
5766 insn_offset = 12;
5767 stub_rtype = R_PPC_RELAX32PC;
5768 }
5769 else
5770 {
5771 size = 4 * ARRAY_SIZE (stub_entry);
5772 insn_offset = 0;
5773 stub_rtype = R_PPC_RELAX32;
5774 }
dc810e39 5775
25dbc73a
AM
5776 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5777 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5778 abort ();
d7128ce4
AM
5779 if (tsec == htab->plt
5780 || tsec == htab->glink)
25dbc73a 5781 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
252b5132 5782
25dbc73a
AM
5783 /* Hijack the old relocation. Since we need two
5784 relocations for this use a "composite" reloc. */
5785 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5786 stub_rtype);
5787 irel->r_offset = trampoff + insn_offset;
252b5132 5788
25dbc73a
AM
5789 /* Record the fixup so we don't do it again this section. */
5790 f = bfd_malloc (sizeof (*f));
5791 f->next = fixups;
5792 f->tsec = tsec;
5793 f->toff = toff;
5794 f->trampoff = trampoff;
5795 fixups = f;
252b5132 5796
25dbc73a
AM
5797 trampoff += size;
5798 }
5799 else
5800 {
5801 val = f->trampoff - roff;
5802 if (val >= max_branch_offset)
5803 continue;
252b5132 5804
25dbc73a
AM
5805 /* Nop out the reloc, since we're finalizing things here. */
5806 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5807 }
252b5132 5808
25dbc73a
AM
5809 /* Get the section contents. */
5810 if (contents == NULL)
5811 {
5812 /* Get cached copy if it exists. */
5813 if (elf_section_data (isec)->this_hdr.contents != NULL)
5814 contents = elf_section_data (isec)->this_hdr.contents;
5815 else
5816 {
5817 /* Go get them off disk. */
5818 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5819 goto error_return;
5820 }
5821 }
252b5132 5822
25dbc73a
AM
5823 /* Fix up the existing branch to hit the trampoline. */
5824 hit_addr = contents + roff;
5825 switch (r_type)
5826 {
5827 case R_PPC_REL24:
5828 case R_PPC_LOCAL24PC:
5829 case R_PPC_PLTREL24:
5830 t0 = bfd_get_32 (abfd, hit_addr);
5831 t0 &= ~0x3fffffc;
5832 t0 |= val & 0x3fffffc;
5833 bfd_put_32 (abfd, t0, hit_addr);
5834 break;
252b5132 5835
25dbc73a
AM
5836 case R_PPC_REL14:
5837 case R_PPC_REL14_BRTAKEN:
5838 case R_PPC_REL14_BRNTAKEN:
5839 t0 = bfd_get_32 (abfd, hit_addr);
5840 t0 &= ~0xfffc;
5841 t0 |= val & 0xfffc;
5842 bfd_put_32 (abfd, t0, hit_addr);
5843 break;
5844 }
5845 }
252b5132 5846
25dbc73a
AM
5847 /* Write out the trampolines. */
5848 changed = fixups != NULL;
5849 if (fixups != NULL)
5850 {
5851 const int *stub;
5852 bfd_byte *dest;
5853 bfd_vma val;
5854 int i, size;
252b5132 5855
25dbc73a
AM
5856 do
5857 {
5858 struct one_fixup *f = fixups;
5859 fixups = fixups->next;
5860 free (f);
5861 }
5862 while (fixups);
252b5132 5863
515ef31d 5864 contents = bfd_realloc_or_free (contents, trampoff);
25dbc73a
AM
5865 if (contents == NULL)
5866 goto error_return;
252b5132 5867
25dbc73a
AM
5868 isec->size = (isec->size + 3) & (bfd_vma) -4;
5869 /* Branch around the trampolines. */
5870 val = trampoff - isec->size + 0x48000000;
5871 dest = contents + isec->size;
5872 isec->size = trampoff;
5873 bfd_put_32 (abfd, val, dest);
5874 dest += 4;
252b5132 5875
25dbc73a
AM
5876 if (link_info->shared)
5877 {
5878 stub = shared_stub_entry;
5879 size = ARRAY_SIZE (shared_stub_entry);
5880 }
5881 else
5882 {
5883 stub = stub_entry;
5884 size = ARRAY_SIZE (stub_entry);
5885 }
252b5132 5886
25dbc73a
AM
5887 i = 0;
5888 while (dest < contents + trampoff)
252b5132 5889 {
25dbc73a
AM
5890 bfd_put_32 (abfd, stub[i], dest);
5891 i++;
5892 if (i == size)
5893 i = 0;
5894 dest += 4;
252b5132 5895 }
25dbc73a 5896 BFD_ASSERT (i == 0);
252b5132
RH
5897 }
5898
25dbc73a
AM
5899 if (isymbuf != NULL
5900 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 5901 {
25dbc73a
AM
5902 if (! link_info->keep_memory)
5903 free (isymbuf);
252b5132 5904 else
25dbc73a
AM
5905 {
5906 /* Cache the symbols for elf_link_input_bfd. */
5907 symtab_hdr->contents = (unsigned char *) isymbuf;
5908 }
252b5132
RH
5909 }
5910
25dbc73a
AM
5911 if (contents != NULL
5912 && elf_section_data (isec)->this_hdr.contents != contents)
5913 {
5914 if (!changed && !link_info->keep_memory)
5915 free (contents);
5916 else
5917 {
5918 /* Cache the section contents for elf_link_input_bfd. */
5919 elf_section_data (isec)->this_hdr.contents = contents;
5920 }
5921 }
252b5132 5922
25dbc73a
AM
5923 if (elf_section_data (isec)->relocs != internal_relocs)
5924 {
5925 if (!changed)
5926 free (internal_relocs);
5927 else
5928 elf_section_data (isec)->relocs = internal_relocs;
5929 }
252b5132 5930
25dbc73a 5931 *again = changed;
b34976b6 5932 return TRUE;
25dbc73a
AM
5933
5934 error_return:
5935 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5936 free (isymbuf);
5937 if (contents != NULL
5938 && elf_section_data (isec)->this_hdr.contents != contents)
5939 free (contents);
5940 if (internal_relocs != NULL
5941 && elf_section_data (isec)->relocs != internal_relocs)
5942 free (internal_relocs);
5943 return FALSE;
252b5132 5944}
252b5132 5945\f
8a696751
AM
5946/* What to do when ld finds relocations against symbols defined in
5947 discarded sections. */
5948
5949static unsigned int
5950ppc_elf_action_discarded (asection *sec)
5951{
5952 if (strcmp (".fixup", sec->name) == 0)
5953 return 0;
5954
5955 if (strcmp (".got2", sec->name) == 0)
5956 return 0;
5957
5958 return _bfd_elf_default_action_discarded (sec);
5959}
c9a2f333 5960\f
25dbc73a 5961/* Fill in the address for a pointer generated in a linker section. */
252b5132 5962
25dbc73a 5963static bfd_vma
76750a2f 5964elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
5965 elf_linker_section_t *lsect,
5966 struct elf_link_hash_entry *h,
5967 bfd_vma relocation,
2bb04cf2 5968 const Elf_Internal_Rela *rel)
25dbc73a
AM
5969{
5970 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 5971
25dbc73a 5972 BFD_ASSERT (lsect != NULL);
252b5132 5973
25dbc73a 5974 if (h != NULL)
252b5132 5975 {
25dbc73a
AM
5976 /* Handle global symbol. */
5977 struct ppc_elf_link_hash_entry *eh;
252b5132 5978
25dbc73a 5979 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
5980 BFD_ASSERT (eh->elf.def_regular);
5981 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
5982 }
5983 else
5984 {
5985 /* Handle local symbol. */
5986 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 5987
0c8d6e5c 5988 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 5989 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
5990 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5991 }
252b5132 5992
76750a2f
AM
5993 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5994 rel->r_addend,
5995 lsect);
5996 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 5997
76750a2f
AM
5998 /* Offset will always be a multiple of four, so use the bottom bit
5999 as a "written" flag. */
6000 if ((linker_section_ptr->offset & 1) == 0)
6001 {
6002 bfd_put_32 (lsect->section->owner,
6003 relocation + linker_section_ptr->addend,
6004 lsect->section->contents + linker_section_ptr->offset);
6005 linker_section_ptr->offset += 1;
252b5132
RH
6006 }
6007
25dbc73a 6008 relocation = (lsect->section->output_offset
76750a2f 6009 + linker_section_ptr->offset - 1
c9a2f333 6010 - 0x8000);
252b5132 6011
25dbc73a
AM
6012#ifdef DEBUG
6013 fprintf (stderr,
6014 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
6015 lsect->name, (long) relocation, (long) relocation);
6016#endif
252b5132 6017
25dbc73a
AM
6018 /* Subtract out the addend, because it will get added back in by the normal
6019 processing. */
6020 return relocation - linker_section_ptr->addend;
252b5132 6021}
25dbc73a 6022
252b5132
RH
6023/* The RELOCATE_SECTION function is called by the ELF backend linker
6024 to handle the relocations for a section.
6025
6026 The relocs are always passed as Rela structures; if the section
6027 actually uses Rel structures, the r_addend field will always be
6028 zero.
6029
6030 This function is responsible for adjust the section contents as
6031 necessary, and (if using Rela relocs and generating a
1049f94e 6032 relocatable output file) adjusting the reloc addend as
252b5132
RH
6033 necessary.
6034
6035 This function does not have to worry about setting the reloc
6036 address or the reloc symbol index.
6037
6038 LOCAL_SYMS is a pointer to the swapped in local symbols.
6039
6040 LOCAL_SECTIONS is an array giving the section in the input file
6041 corresponding to the st_shndx field of each local symbol.
6042
6043 The global hash table entry for the global symbols can be found
6044 via elf_sym_hashes (input_bfd).
6045
1049f94e 6046 When generating relocatable output, this function must handle
252b5132
RH
6047 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6048 going to be the section symbol corresponding to the output
6049 section, which means that the addend must be adjusted
6050 accordingly. */
6051
b34976b6 6052static bfd_boolean
55fd94b0
AM
6053ppc_elf_relocate_section (bfd *output_bfd,
6054 struct bfd_link_info *info,
6055 bfd *input_bfd,
6056 asection *input_section,
6057 bfd_byte *contents,
6058 Elf_Internal_Rela *relocs,
6059 Elf_Internal_Sym *local_syms,
6060 asection **local_sections)
252b5132 6061{
7619e7c7
AM
6062 Elf_Internal_Shdr *symtab_hdr;
6063 struct elf_link_hash_entry **sym_hashes;
6064 struct ppc_elf_link_hash_table *htab;
6065 Elf_Internal_Rela *rel;
6066 Elf_Internal_Rela *relend;
6067 Elf_Internal_Rela outrel;
6068 bfd_byte *loc;
a6aa5195 6069 asection *got2, *sreloc = NULL;
252b5132 6070 bfd_vma *local_got_offsets;
b34976b6 6071 bfd_boolean ret = TRUE;
4fe5ca5b 6072 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 6073 bfd_boolean is_vxworks_tls;
b34976b6 6074
252b5132 6075#ifdef DEBUG
d003868e
AM
6076 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
6077 "%ld relocations%s",
6078 input_bfd, input_section,
6079 (long) input_section->reloc_count,
6080 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH
6081#endif
6082
a6aa5195
AM
6083 got2 = bfd_get_section_by_name (input_bfd, ".got2");
6084
e47cd125 6085 /* Initialize howto table if not already done. */
8da6118f 6086 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
6087 ppc_elf_howto_init ();
6088
7619e7c7 6089 htab = ppc_elf_hash_table (info);
252b5132 6090 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 6091 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 6092 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
6093 /* We have to handle relocations in vxworks .tls_vars sections
6094 specially, because the dynamic loader is 'weird'. */
6095 is_vxworks_tls = (htab->is_vxworks && info->shared
6096 && !strcmp (input_section->output_section->name,
6097 ".tls_vars"));
7619e7c7
AM
6098 rel = relocs;
6099 relend = relocs + input_section->reloc_count;
252b5132
RH
6100 for (; rel < relend; rel++)
6101 {
7619e7c7
AM
6102 enum elf_ppc_reloc_type r_type;
6103 bfd_vma addend;
6104 bfd_reloc_status_type r;
6105 Elf_Internal_Sym *sym;
6106 asection *sec;
6107 struct elf_link_hash_entry *h;
6108 const char *sym_name;
252b5132
RH
6109 reloc_howto_type *howto;
6110 unsigned long r_symndx;
6111 bfd_vma relocation;
7619e7c7 6112 bfd_vma branch_bit, insn, from;
7619e7c7
AM
6113 bfd_boolean unresolved_reloc;
6114 bfd_boolean warned;
6115 unsigned int tls_type, tls_mask, tls_gd;
6116
55fd94b0
AM
6117 r_type = ELF32_R_TYPE (rel->r_info);
6118 sym = NULL;
6119 sec = NULL;
6120 h = NULL;
7619e7c7
AM
6121 unresolved_reloc = FALSE;
6122 warned = FALSE;
252b5132 6123 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 6124
252b5132
RH
6125 if (r_symndx < symtab_hdr->sh_info)
6126 {
6127 sym = local_syms + r_symndx;
6128 sec = local_sections[r_symndx];
26c61ae5 6129 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 6130
8517fae7 6131 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
6132 }
6133 else
6134 {
b2a8e766
AM
6135 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
6136 r_symndx, symtab_hdr, sym_hashes,
6137 h, sec, relocation,
6138 unresolved_reloc, warned);
9abc968f 6139
252b5132 6140 sym_name = h->root.root.string;
7619e7c7
AM
6141 }
6142
ab96bf03
AM
6143 if (sec != NULL && elf_discarded_section (sec))
6144 {
6145 /* For relocs against symbols from removed linkonce sections,
6146 or sections discarded by a linker script, we just want the
6147 section contents zeroed. Avoid any special processing. */
6148 howto = NULL;
6149 if (r_type < R_PPC_max)
6150 howto = ppc_elf_howto_table[r_type];
6151 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
6152 rel->r_info = 0;
6153 rel->r_addend = 0;
6154 continue;
6155 }
6156
6157 if (info->relocatable)
6158 {
6159 if (got2 != NULL
6160 && r_type == R_PPC_PLTREL24
6161 && rel->r_addend >= 32768)
6162 {
6163 /* R_PPC_PLTREL24 is rather special. If non-zero, the
6164 addend specifies the GOT pointer offset within .got2. */
6165 rel->r_addend += got2->output_offset;
6166 }
6167 continue;
6168 }
6169
7619e7c7
AM
6170 /* TLS optimizations. Replace instruction sequences and relocs
6171 based on information we collected in tls_optimize. We edit
6172 RELOCS so that --emit-relocs will output something sensible
6173 for the final instruction stream. */
6174 tls_mask = 0;
6175 tls_gd = 0;
6176 if (IS_PPC_TLS_RELOC (r_type))
6177 {
6178 if (h != NULL)
6179 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
6180 else if (local_got_offsets != NULL)
6181 {
6182 char *lgot_masks;
6183 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
6184 tls_mask = lgot_masks[r_symndx];
6185 }
6186 }
6187
6188 /* Ensure reloc mapping code below stays sane. */
6189 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
6190 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
6191 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
6192 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
6193 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
6194 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
6195 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
6196 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
6197 abort ();
6198 switch (r_type)
6199 {
6200 default:
6201 break;
6202
6203 case R_PPC_GOT_TPREL16:
6204 case R_PPC_GOT_TPREL16_LO:
6205 if (tls_mask != 0
6206 && (tls_mask & TLS_TPREL) == 0)
6207 {
6208 bfd_vma insn;
4fe5ca5b 6209 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM
6210 insn &= 31 << 21;
6211 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 6212 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM
6213 r_type = R_PPC_TPREL16_HA;
6214 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6215 }
6216 break;
6217
6218 case R_PPC_TLS:
6219 if (tls_mask != 0
6220 && (tls_mask & TLS_TPREL) == 0)
6221 {
6222 bfd_vma insn, rtra;
6223 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6224 if ((insn & ((31 << 26) | (31 << 11)))
6225 == ((31 << 26) | (2 << 11)))
6226 rtra = insn & ((1 << 26) - (1 << 16));
6227 else if ((insn & ((31 << 26) | (31 << 16)))
6228 == ((31 << 26) | (2 << 16)))
6229 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
6230 else
6231 abort ();
6232 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
6233 /* add -> addi. */
6234 insn = 14 << 26;
6235 else if ((insn & (31 << 1)) == 23 << 1
6236 && ((insn & (31 << 6)) < 14 << 6
6237 || ((insn & (31 << 6)) >= 16 << 6
6238 && (insn & (31 << 6)) < 24 << 6)))
6239 /* load and store indexed -> dform. */
6240 insn = (32 | ((insn >> 6) & 31)) << 26;
6241 else if ((insn & (31 << 1)) == 21 << 1
6242 && (insn & (0x1a << 6)) == 0)
6243 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
6244 insn = (((58 | ((insn >> 6) & 4)) << 26)
6245 | ((insn >> 6) & 1));
6246 else if ((insn & (31 << 1)) == 21 << 1
6247 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
6248 /* lwax -> lwa. */
6249 insn = (58 << 26) | 2;
6250 else
6251 abort ();
6252 insn |= rtra;
6253 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6254 r_type = R_PPC_TPREL16_LO;
6255 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 6256
7619e7c7 6257 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
6258 PPC_TPREL16_LO which is at low-order half-word. */
6259 rel->r_offset += d_offset;
7619e7c7
AM
6260 }
6261 break;
6262
6263 case R_PPC_GOT_TLSGD16_HI:
6264 case R_PPC_GOT_TLSGD16_HA:
6265 tls_gd = TLS_TPRELGD;
6266 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
6267 goto tls_gdld_hi;
6268 break;
6269
6270 case R_PPC_GOT_TLSLD16_HI:
6271 case R_PPC_GOT_TLSLD16_HA:
6272 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
6273 {
6274 tls_gdld_hi:
6275 if ((tls_mask & tls_gd) != 0)
6276 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6277 + R_PPC_GOT_TPREL16);
6278 else
6279 {
6280 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 6281 rel->r_offset -= d_offset;
7619e7c7
AM
6282 r_type = R_PPC_NONE;
6283 }
6284 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6285 }
6286 break;
6287
6288 case R_PPC_GOT_TLSGD16:
6289 case R_PPC_GOT_TLSGD16_LO:
6290 tls_gd = TLS_TPRELGD;
6291 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 6292 goto tls_ldgd_opt;
7619e7c7
AM
6293 break;
6294
6295 case R_PPC_GOT_TLSLD16:
6296 case R_PPC_GOT_TLSLD16_LO:
6297 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
6298 {
b7fcf6f6
AM
6299 bfd_vma insn1, insn2;
6300 bfd_vma offset;
7619e7c7 6301
b7fcf6f6
AM
6302 tls_ldgd_opt:
6303 offset = rel[1].r_offset;
6304 insn1 = bfd_get_32 (output_bfd,
6305 contents + rel->r_offset - d_offset);
6306 if ((tls_mask & tls_gd) != 0)
6307 {
6308 /* IE */
6309 insn1 &= (1 << 26) - 1;
6310 insn1 |= 32 << 26; /* lwz */
6311 insn2 = 0x7c631214; /* add 3,3,2 */
6312 rel[1].r_info
6313 = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), R_PPC_NONE);
6314 rel[1].r_addend = 0;
6315 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6316 + R_PPC_GOT_TPREL16);
6317 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6318 }
6319 else
6320 {
6321 /* LE */
6322 insn1 = 0x3c620000; /* addis 3,2,0 */
6323 insn2 = 0x38630000; /* addi 3,3,0 */
7619e7c7
AM
6324 if (tls_gd == 0)
6325 {
b7fcf6f6 6326 /* Was an LD reloc. */
1d483afe
AM
6327 for (r_symndx = 0;
6328 r_symndx < symtab_hdr->sh_info;
6329 r_symndx++)
6330 if (local_sections[r_symndx] == sec)
6331 break;
6332 if (r_symndx >= symtab_hdr->sh_info)
6333 r_symndx = 0;
b7fcf6f6 6334 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
1d483afe
AM
6335 if (r_symndx != 0)
6336 rel->r_addend -= (local_syms[r_symndx].st_value
6337 + sec->output_offset
6338 + sec->output_section->vma);
7619e7c7 6339 }
b7fcf6f6
AM
6340 r_type = R_PPC_TPREL16_HA;
6341 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6342 rel[1].r_info = ELF32_R_INFO (r_symndx,
6343 R_PPC_TPREL16_LO);
6344 rel[1].r_offset += d_offset;
6345 rel[1].r_addend = rel->r_addend;
6346 }
6347 bfd_put_32 (output_bfd, insn1,
6348 contents + rel->r_offset - d_offset);
6349 bfd_put_32 (output_bfd, insn2, contents + offset);
6350 if (tls_gd == 0)
6351 {
6352 /* We changed the symbol on an LD reloc. Start over
6353 in order to get h, sym, sec etc. right. */
6354 rel--;
6355 continue;
7619e7c7 6356 }
252b5132 6357 }
7619e7c7
AM
6358 break;
6359 }
6360
6361 /* Handle other relocations that tweak non-addend part of insn. */
6362 branch_bit = 0;
6363 switch (r_type)
6364 {
6365 default:
6366 break;
6367
6368 /* Branch taken prediction relocations. */
6369 case R_PPC_ADDR14_BRTAKEN:
6370 case R_PPC_REL14_BRTAKEN:
6371 branch_bit = BRANCH_PREDICT_BIT;
6372 /* Fall thru */
6373
4cc11e76 6374 /* Branch not taken prediction relocations. */
7619e7c7
AM
6375 case R_PPC_ADDR14_BRNTAKEN:
6376 case R_PPC_REL14_BRNTAKEN:
6377 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6378 insn &= ~BRANCH_PREDICT_BIT;
6379 insn |= branch_bit;
6380
6381 from = (rel->r_offset
6382 + input_section->output_offset
6383 + input_section->output_section->vma);
6384
6385 /* Invert 'y' bit if not the default. */
6386 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
6387 insn ^= BRANCH_PREDICT_BIT;
6388
6389 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6390 break;
252b5132
RH
6391 }
6392
7619e7c7
AM
6393 addend = rel->r_addend;
6394 tls_type = 0;
6395 howto = NULL;
55fd94b0
AM
6396 if (r_type < R_PPC_max)
6397 howto = ppc_elf_howto_table[r_type];
7619e7c7 6398 switch (r_type)
252b5132
RH
6399 {
6400 default:
7619e7c7 6401 (*_bfd_error_handler)
d003868e
AM
6402 (_("%B: unknown relocation type %d for symbol %s"),
6403 input_bfd, (int) r_type, sym_name);
252b5132
RH
6404
6405 bfd_set_error (bfd_error_bad_value);
b34976b6 6406 ret = FALSE;
252b5132
RH
6407 continue;
6408
7619e7c7
AM
6409 case R_PPC_NONE:
6410 case R_PPC_TLS:
6411 case R_PPC_EMB_MRKREF:
6412 case R_PPC_GNU_VTINHERIT:
6413 case R_PPC_GNU_VTENTRY:
7595d193
L
6414 continue;
6415
7619e7c7
AM
6416 /* GOT16 relocations. Like an ADDR16 using the symbol's
6417 address in the GOT as relocation value instead of the
6418 symbol's value itself. Also, create a GOT entry for the
6419 symbol and put the symbol value there. */
6420 case R_PPC_GOT_TLSGD16:
6421 case R_PPC_GOT_TLSGD16_LO:
6422 case R_PPC_GOT_TLSGD16_HI:
6423 case R_PPC_GOT_TLSGD16_HA:
6424 tls_type = TLS_TLS | TLS_GD;
6425 goto dogot;
6426
6427 case R_PPC_GOT_TLSLD16:
6428 case R_PPC_GOT_TLSLD16_LO:
6429 case R_PPC_GOT_TLSLD16_HI:
6430 case R_PPC_GOT_TLSLD16_HA:
6431 tls_type = TLS_TLS | TLS_LD;
6432 goto dogot;
6433
6434 case R_PPC_GOT_TPREL16:
6435 case R_PPC_GOT_TPREL16_LO:
6436 case R_PPC_GOT_TPREL16_HI:
6437 case R_PPC_GOT_TPREL16_HA:
6438 tls_type = TLS_TLS | TLS_TPREL;
6439 goto dogot;
6440
6441 case R_PPC_GOT_DTPREL16:
6442 case R_PPC_GOT_DTPREL16_LO:
6443 case R_PPC_GOT_DTPREL16_HI:
6444 case R_PPC_GOT_DTPREL16_HA:
6445 tls_type = TLS_TLS | TLS_DTPREL;
6446 goto dogot;
6447
6448 case R_PPC_GOT16:
6449 case R_PPC_GOT16_LO:
6450 case R_PPC_GOT16_HI:
6451 case R_PPC_GOT16_HA:
6452 dogot:
6453 {
6454 /* Relocation is to the entry for this symbol in the global
6455 offset table. */
6456 bfd_vma off;
6457 bfd_vma *offp;
6458 unsigned long indx;
6459
6460 if (htab->got == NULL)
6461 abort ();
6462
6463 indx = 0;
6464 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 6465 && (h == NULL
f5385ebf 6466 || !h->def_dynamic))
7619e7c7
AM
6467 offp = &htab->tlsld_got.offset;
6468 else if (h != NULL)
6469 {
6470 bfd_boolean dyn;
6471 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 6472 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM
6473 || (info->shared
6474 && SYMBOL_REFERENCES_LOCAL (info, h)))
6475 /* This is actually a static link, or it is a
6476 -Bsymbolic link and the symbol is defined
6477 locally, or the symbol was forced to be local
6478 because of a version file. */
6479 ;
6480 else
6481 {
6482 indx = h->dynindx;
6483 unresolved_reloc = FALSE;
6484 }
6485 offp = &h->got.offset;
6486 }
6487 else
6488 {
6489 if (local_got_offsets == NULL)
6490 abort ();
6491 offp = &local_got_offsets[r_symndx];
6492 }
6493
6494 /* The offset must always be a multiple of 4. We use the
6495 least significant bit to record whether we have already
6496 processed this entry. */
6497 off = *offp;
6498 if ((off & 1) != 0)
6499 off &= ~1;
6500 else
6501 {
70bccea4
AM
6502 unsigned int tls_m = (tls_mask
6503 & (TLS_LD | TLS_GD | TLS_DTPREL
6504 | TLS_TPREL | TLS_TPRELGD));
6505
6506 if (offp == &htab->tlsld_got.offset)
6507 tls_m = TLS_LD;
6508 else if (h == NULL
f5385ebf 6509 || !h->def_dynamic)
70bccea4
AM
6510 tls_m &= ~TLS_LD;
6511
6512 /* We might have multiple got entries for this sym.
6513 Initialize them all. */
6514 do
7619e7c7 6515 {
70bccea4
AM
6516 int tls_ty = 0;
6517
6518 if ((tls_m & TLS_LD) != 0)
7619e7c7 6519 {
70bccea4
AM
6520 tls_ty = TLS_TLS | TLS_LD;
6521 tls_m &= ~TLS_LD;
6522 }
6523 else if ((tls_m & TLS_GD) != 0)
6524 {
6525 tls_ty = TLS_TLS | TLS_GD;
6526 tls_m &= ~TLS_GD;
6527 }
6528 else if ((tls_m & TLS_DTPREL) != 0)
6529 {
6530 tls_ty = TLS_TLS | TLS_DTPREL;
6531 tls_m &= ~TLS_DTPREL;
6532 }
6533 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6534 {
6535 tls_ty = TLS_TLS | TLS_TPREL;
6536 tls_m = 0;
7619e7c7 6537 }
7619e7c7 6538
70bccea4 6539 /* Generate relocs for the dynamic linker. */
4e795f50
AM
6540 if ((info->shared || indx != 0)
6541 && (h == NULL
6542 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6543 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 6544 {
70bccea4
AM
6545 outrel.r_offset = (htab->got->output_section->vma
6546 + htab->got->output_offset
6547 + off);
e515b051 6548 outrel.r_addend = 0;
70bccea4
AM
6549 if (tls_ty & (TLS_LD | TLS_GD))
6550 {
6551 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
6552 if (tls_ty == (TLS_TLS | TLS_GD))
6553 {
6554 loc = htab->relgot->contents;
6555 loc += (htab->relgot->reloc_count++
6556 * sizeof (Elf32_External_Rela));
6557 bfd_elf32_swap_reloca_out (output_bfd,
6558 &outrel, loc);
e515b051 6559 outrel.r_offset += 4;
70bccea4
AM
6560 outrel.r_info
6561 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
6562 }
6563 }
6564 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6565 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6566 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6567 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6568 else if (indx == 0)
6569 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6570 else
6571 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
70bccea4 6572 if (indx == 0)
e515b051
AM
6573 {
6574 outrel.r_addend += relocation;
6575 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 6576 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 6577 }
70bccea4
AM
6578 loc = htab->relgot->contents;
6579 loc += (htab->relgot->reloc_count++
6580 * sizeof (Elf32_External_Rela));
6581 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
6582 }
6583
70bccea4
AM
6584 /* Init the .got section contents if we're not
6585 emitting a reloc. */
6586 else
7619e7c7 6587 {
70bccea4
AM
6588 bfd_vma value = relocation;
6589
7b609f53
AM
6590 if (tls_ty == (TLS_TLS | TLS_LD))
6591 value = 1;
6592 else if (tls_ty != 0)
70bccea4 6593 {
e1918d23 6594 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 6595 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 6596 value += DTP_OFFSET - TP_OFFSET;
70bccea4 6597
7b609f53
AM
6598 if (tls_ty == (TLS_TLS | TLS_GD))
6599 {
6600 bfd_put_32 (output_bfd, value,
6601 htab->got->contents + off + 4);
6602 value = 1;
6603 }
70bccea4 6604 }
70bccea4
AM
6605 bfd_put_32 (output_bfd, value,
6606 htab->got->contents + off);
7619e7c7 6607 }
70bccea4
AM
6608
6609 off += 4;
6610 if (tls_ty & (TLS_LD | TLS_GD))
6611 off += 4;
7619e7c7 6612 }
70bccea4
AM
6613 while (tls_m != 0);
6614
6615 off = *offp;
6616 *offp = off | 1;
7619e7c7
AM
6617 }
6618
6619 if (off >= (bfd_vma) -2)
6620 abort ();
6621
70bccea4
AM
6622 if ((tls_type & TLS_TLS) != 0)
6623 {
6624 if (tls_type != (TLS_TLS | TLS_LD))
6625 {
6626 if ((tls_mask & TLS_LD) != 0
6627 && !(h == NULL
f5385ebf 6628 || !h->def_dynamic))
70bccea4
AM
6629 off += 8;
6630 if (tls_type != (TLS_TLS | TLS_GD))
6631 {
6632 if ((tls_mask & TLS_GD) != 0)
6633 off += 8;
6634 if (tls_type != (TLS_TLS | TLS_DTPREL))
6635 {
6636 if ((tls_mask & TLS_DTPREL) != 0)
6637 off += 4;
6638 }
6639 }
6640 }
6641 }
6642
3b36f7e6
AM
6643 relocation = htab->got->output_offset + off;
6644 relocation -= htab->elf.hgot->root.u.def.value;
7619e7c7
AM
6645
6646 /* Addends on got relocations don't make much sense.
6647 x+off@got is actually x@got+off, and since the got is
6648 generated by a hash table traversal, the value in the
6649 got at entry m+n bears little relation to the entry m. */
6650 if (addend != 0)
6651 (*_bfd_error_handler)
d003868e
AM
6652 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6653 input_bfd,
6654 input_section,
7619e7c7 6655 (long) rel->r_offset,
7b609f53 6656 howto->name,
7619e7c7
AM
6657 sym_name);
6658 }
70bccea4 6659 break;
7619e7c7 6660
252b5132 6661 /* Relocations that need no special processing. */
7619e7c7 6662 case R_PPC_LOCAL24PC:
252b5132
RH
6663 /* It makes no sense to point a local relocation
6664 at a symbol not in this object. */
7b609f53 6665 if (unresolved_reloc)
252b5132 6666 {
464e1740
ILT
6667 if (! (*info->callbacks->undefined_symbol) (info,
6668 h->root.root.string,
6669 input_bfd,
6670 input_section,
5cc7c785 6671 rel->r_offset,
b34976b6
AM
6672 TRUE))
6673 return FALSE;
252b5132
RH
6674 continue;
6675 }
6676 break;
6677
7619e7c7
AM
6678 case R_PPC_DTPREL16:
6679 case R_PPC_DTPREL16_LO:
6680 case R_PPC_DTPREL16_HI:
6681 case R_PPC_DTPREL16_HA:
e1918d23 6682 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
6683 break;
6684
70bccea4
AM
6685 /* Relocations that may need to be propagated if this is a shared
6686 object. */
7619e7c7
AM
6687 case R_PPC_TPREL16:
6688 case R_PPC_TPREL16_LO:
6689 case R_PPC_TPREL16_HI:
6690 case R_PPC_TPREL16_HA:
e1918d23 6691 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
6692 /* The TPREL16 relocs shouldn't really be used in shared
6693 libs as they will result in DT_TEXTREL being set, but
6694 support them anyway. */
6695 goto dodyn;
6696
6697 case R_PPC_TPREL32:
e1918d23 6698 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
6699 goto dodyn;
6700
6701 case R_PPC_DTPREL32:
e1918d23 6702 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
6703 goto dodyn;
6704
e515b051
AM
6705 case R_PPC_DTPMOD32:
6706 relocation = 1;
6707 addend = 0;
6708 goto dodyn;
6709
d7128ce4
AM
6710 case R_PPC_REL16:
6711 case R_PPC_REL16_LO:
6712 case R_PPC_REL16_HI:
6713 case R_PPC_REL16_HA:
6714 break;
6715
7619e7c7 6716 case R_PPC_REL32:
625af618
AM
6717 if (h == NULL || h == htab->elf.hgot)
6718 break;
6719 /* fall through */
6720
6721 case R_PPC_ADDR32:
6722 case R_PPC_ADDR16:
6723 case R_PPC_ADDR16_LO:
6724 case R_PPC_ADDR16_HI:
6725 case R_PPC_ADDR16_HA:
6726 case R_PPC_UADDR32:
6727 case R_PPC_UADDR16:
6728 goto dodyn;
6729
6730 case R_PPC_REL24:
7619e7c7
AM
6731 case R_PPC_REL14:
6732 case R_PPC_REL14_BRTAKEN:
6733 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
6734 /* If these relocations are not to a named symbol, they can be
6735 handled right here, no need to bother the dynamic linker. */
89200bf8 6736 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 6737 || h == htab->elf.hgot)
252b5132 6738 break;
70bccea4 6739 /* fall through */
252b5132 6740
7619e7c7 6741 case R_PPC_ADDR24:
7619e7c7
AM
6742 case R_PPC_ADDR14:
6743 case R_PPC_ADDR14_BRTAKEN:
6744 case R_PPC_ADDR14_BRNTAKEN:
625af618
AM
6745 if (h != NULL && !info->shared)
6746 break;
6747 /* fall through */
6748
7619e7c7 6749 dodyn:
3348747a
NS
6750 if ((input_section->flags & SEC_ALLOC) == 0
6751 || is_vxworks_tls)
c87b5a93 6752 break;
c87b5a93 6753
ee05f2fe 6754 if ((info->shared
89200bf8
AM
6755 && !(h != NULL
6756 && ((h->root.type == bfd_link_hash_undefined
6757 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6758 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6759 || (h->root.type == bfd_link_hash_undefweak
6760 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 6761 && (must_be_dyn_reloc (info, r_type)
f6c52c13 6762 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM
6763 || (ELIMINATE_COPY_RELOCS
6764 && !info->shared
ee05f2fe
AM
6765 && h != NULL
6766 && h->dynindx != -1
f5385ebf 6767 && !h->non_got_ref
f5385ebf 6768 && !h->def_regular))
252b5132 6769 {
0bb2d96a 6770 int skip;
252b5132
RH
6771
6772#ifdef DEBUG
55fd94b0
AM
6773 fprintf (stderr, "ppc_elf_relocate_section needs to "
6774 "create relocation for %s\n",
70bccea4
AM
6775 (h && h->root.root.string
6776 ? h->root.root.string : "<unknown>"));
252b5132
RH
6777#endif
6778
6779 /* When generating a shared object, these relocations
70bccea4
AM
6780 are copied into the output file to be resolved at run
6781 time. */
252b5132
RH
6782 if (sreloc == NULL)
6783 {
6784 const char *name;
6785
6786 name = (bfd_elf_string_from_elf_section
6787 (input_bfd,
6788 elf_elfheader (input_bfd)->e_shstrndx,
6789 elf_section_data (input_section)->rel_hdr.sh_name));
6790 if (name == NULL)
b34976b6 6791 return FALSE;
252b5132 6792
0112cd26 6793 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
252b5132
RH
6794 && strcmp (bfd_get_section_name (input_bfd,
6795 input_section),
6796 name + 5) == 0);
6797
7619e7c7 6798 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
252b5132
RH
6799 BFD_ASSERT (sreloc != NULL);
6800 }
6801
0bb2d96a 6802 skip = 0;
c629eae0
JJ
6803 outrel.r_offset =
6804 _bfd_elf_section_offset (output_bfd, info, input_section,
6805 rel->r_offset);
0bb2d96a
JJ
6806 if (outrel.r_offset == (bfd_vma) -1
6807 || outrel.r_offset == (bfd_vma) -2)
6808 skip = (int) outrel.r_offset;
252b5132
RH
6809 outrel.r_offset += (input_section->output_section->vma
6810 + input_section->output_offset);
6811
6812 if (skip)
6813 memset (&outrel, 0, sizeof outrel);
89200bf8
AM
6814 else if ((h != NULL
6815 && (h->root.type == bfd_link_hash_undefined
6816 || h->root.type == bfd_link_hash_undefweak))
6817 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 6818 {
7619e7c7 6819 unresolved_reloc = FALSE;
252b5132
RH
6820 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6821 outrel.r_addend = rel->r_addend;
6822 }
6823 else
6824 {
47388f4c
AM
6825 outrel.r_addend = relocation + rel->r_addend;
6826
252b5132 6827 if (r_type == R_PPC_ADDR32)
47388f4c 6828 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
6829 else
6830 {
89200bf8 6831 long indx = 0;
252b5132 6832
1d483afe 6833 if (r_symndx == 0 || bfd_is_abs_section (sec))
89200bf8 6834 ;
252b5132
RH
6835 else if (sec == NULL || sec->owner == NULL)
6836 {
6837 bfd_set_error (bfd_error_bad_value);
89200bf8 6838 ret = FALSE;
252b5132
RH
6839 }
6840 else
6841 {
6842 asection *osec;
6843
47388f4c
AM
6844 /* We are turning this relocation into one
6845 against a section symbol. It would be
6846 proper to subtract the symbol's value,
6847 osec->vma, from the emitted reloc addend,
6848 but ld.so expects buggy relocs. */
252b5132
RH
6849 osec = sec->output_section;
6850 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
6851 if (indx == 0)
6852 {
6853 osec = htab->elf.text_index_section;
6854 indx = elf_section_data (osec)->dynindx;
6855 }
6856 BFD_ASSERT (indx != 0);
252b5132 6857#ifdef DEBUG
74541ad4 6858 if (indx == 0)
e460dd0d 6859 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
6860 indx, osec->name, osec->flags,
6861 h->root.root.string);
252b5132
RH
6862#endif
6863 }
6864
6865 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH
6866 }
6867 }
6868
947216bf
AM
6869 loc = sreloc->contents;
6870 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6871 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 6872
2243deae 6873 if (skip == -1)
252b5132 6874 continue;
2243deae
L
6875
6876 /* This reloc will be computed at runtime. We clear the memory
6877 so that it contains predictable value. */
6878 if (! skip
6879 && ((input_section->flags & SEC_ALLOC) != 0
6880 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6881 {
6882 relocation = howto->pc_relative ? outrel.r_offset : 0;
6883 addend = 0;
6884 break;
6885 }
252b5132 6886 }
252b5132
RH
6887 break;
6888
b4a38de6
AM
6889 case R_PPC_RELAX32PC_PLT:
6890 case R_PPC_RELAX32_PLT:
a6aa5195
AM
6891 {
6892 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6893
4a3dc543 6894 if (htab->plt_type == PLT_NEW)
a6aa5195
AM
6895 relocation = (htab->glink->output_section->vma
6896 + htab->glink->output_offset
6897 + ent->glink_offset);
6898 else
6899 relocation = (htab->plt->output_section->vma
6900 + htab->plt->output_offset
6901 + ent->plt.offset);
6902 addend = 0;
6903 }
b4a38de6
AM
6904 if (r_type == R_PPC_RELAX32_PLT)
6905 goto relax32;
6906 /* Fall thru */
6907
f31a141e
AM
6908 case R_PPC_RELAX32PC:
6909 relocation -= (input_section->output_section->vma
6910 + input_section->output_offset
6911 + rel->r_offset - 4);
6912 /* Fall thru */
b4a38de6 6913
deaaf2f3 6914 case R_PPC_RELAX32:
b4a38de6 6915 relax32:
9abc968f
AM
6916 {
6917 unsigned long t0;
6918 unsigned long t1;
6919
6920 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6921 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6922
6923 /* We're clearing the bits for R_PPC_ADDR16_HA
6924 and R_PPC_ADDR16_LO here. */
6925 t0 &= ~0xffff;
6926 t1 &= ~0xffff;
6927
6928 /* t0 is HA, t1 is LO */
6929 relocation += addend;
6930 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6931 t1 |= relocation & 0xffff;
6932
6933 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6934 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6935 }
8517fae7 6936 continue;
deaaf2f3 6937
70bccea4 6938 /* Indirect .sdata relocation. */
7619e7c7 6939 case R_PPC_EMB_SDAI16:
c9a2f333 6940 BFD_ASSERT (htab->sdata[0].section != NULL);
7619e7c7 6941 relocation
76750a2f
AM
6942 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6943 h, relocation, rel);
252b5132
RH
6944 break;
6945
70bccea4 6946 /* Indirect .sdata2 relocation. */
7619e7c7 6947 case R_PPC_EMB_SDA2I16:
c9a2f333 6948 BFD_ASSERT (htab->sdata[1].section != NULL);
7619e7c7 6949 relocation
76750a2f
AM
6950 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6951 h, relocation, rel);
252b5132
RH
6952 break;
6953
70bccea4
AM
6954 /* Handle the TOC16 reloc. We want to use the offset within the .got
6955 section, not the actual VMA. This is appropriate when generating
6956 an embedded ELF object, for which the .got section acts like the
6957 AIX .toc section. */
7619e7c7 6958 case R_PPC_TOC16: /* phony GOT16 relocations */
55fd94b0 6959 BFD_ASSERT (sec != NULL);
252b5132
RH
6960 BFD_ASSERT (bfd_is_und_section (sec)
6961 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 6962 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 6963
70bccea4 6964 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
6965 break;
6966
7619e7c7 6967 case R_PPC_PLTREL24:
252b5132 6968 /* Relocation is to the entry for this symbol in the
70bccea4 6969 procedure linkage table. */
a6aa5195
AM
6970 {
6971 struct plt_entry *ent = find_plt_ent (h, got2, addend);
252b5132 6972
a6aa5195
AM
6973 addend = 0;
6974 if (ent == NULL
6975 || htab->plt == NULL)
6976 {
6977 /* We didn't make a PLT entry for this symbol. This
6978 happens when statically linking PIC code, or when
6979 using -Bsymbolic. */
6980 break;
6981 }
252b5132 6982
a6aa5195 6983 unresolved_reloc = FALSE;
4a3dc543 6984 if (htab->plt_type == PLT_NEW)
a6aa5195
AM
6985 relocation = (htab->glink->output_section->vma
6986 + htab->glink->output_offset
6987 + ent->glink_offset);
6988 else
6989 relocation = (htab->plt->output_section->vma
6990 + htab->plt->output_offset
6991 + ent->plt.offset);
6992 }
8da6118f 6993 break;
252b5132 6994
70bccea4 6995 /* Relocate against _SDA_BASE_. */
7619e7c7 6996 case R_PPC_SDAREL16:
252b5132
RH
6997 {
6998 const char *name;
046183de 6999 struct elf_link_hash_entry *sh;
252b5132 7000
55fd94b0 7001 BFD_ASSERT (sec != NULL);
252b5132 7002 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 7003 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 7004 && (name[6] == 0 || name[6] == '.'))
0112cd26 7005 || (CONST_STRNEQ (name, ".sbss")
5f819128 7006 && (name[5] == 0 || name[5] == '.'))))
252b5132 7007 {
55fd94b0 7008 (*_bfd_error_handler)
d003868e 7009 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 7010 "in the wrong output section (%s)"),
d003868e 7011 input_bfd,
55fd94b0
AM
7012 sym_name,
7013 howto->name,
7014 name);
252b5132 7015 }
046183de
AM
7016 sh = htab->sdata[0].sym;
7017 addend -= (sh->root.u.def.value
7018 + sh->root.u.def.section->output_offset
7019 + sh->root.u.def.section->output_section->vma);
252b5132
RH
7020 }
7021 break;
7022
70bccea4 7023 /* Relocate against _SDA2_BASE_. */
7619e7c7 7024 case R_PPC_EMB_SDA2REL:
252b5132
RH
7025 {
7026 const char *name;
046183de 7027 struct elf_link_hash_entry *sh;
252b5132 7028
55fd94b0 7029 BFD_ASSERT (sec != NULL);
252b5132 7030 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26
NC
7031 if (! (CONST_STRNEQ (name, ".sdata2")
7032 || CONST_STRNEQ (name, ".sbss2")))
252b5132 7033 {
55fd94b0 7034 (*_bfd_error_handler)
d003868e 7035 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 7036 "in the wrong output section (%s)"),
d003868e 7037 input_bfd,
55fd94b0
AM
7038 sym_name,
7039 howto->name,
7040 name);
c3668558 7041
252b5132 7042 bfd_set_error (bfd_error_bad_value);
b34976b6 7043 ret = FALSE;
252b5132
RH
7044 continue;
7045 }
046183de
AM
7046 sh = htab->sdata[1].sym;
7047 addend -= (sh->root.u.def.value
7048 + sh->root.u.def.section->output_offset
7049 + sh->root.u.def.section->output_section->vma);
252b5132
RH
7050 }
7051 break;
7052
70bccea4 7053 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM
7054 case R_PPC_EMB_SDA21:
7055 case R_PPC_EMB_RELSDA:
252b5132
RH
7056 {
7057 const char *name;
7058 int reg;
046183de 7059 struct elf_link_hash_entry *sh;
252b5132 7060
55fd94b0 7061 BFD_ASSERT (sec != NULL);
252b5132 7062 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 7063 if (((CONST_STRNEQ (name, ".sdata")
5f819128 7064 && (name[6] == 0 || name[6] == '.'))
0112cd26 7065 || (CONST_STRNEQ (name, ".sbss")
5f819128 7066 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH
7067 {
7068 reg = 13;
046183de
AM
7069 sh = htab->sdata[0].sym;
7070 addend -= (sh->root.u.def.value
7071 + sh->root.u.def.section->output_offset
7072 + sh->root.u.def.section->output_section->vma);
252b5132
RH
7073 }
7074
0112cd26
NC
7075 else if (CONST_STRNEQ (name, ".sdata2")
7076 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH
7077 {
7078 reg = 2;
046183de
AM
7079 sh = htab->sdata[1].sym;
7080 addend -= (sh->root.u.def.value
7081 + sh->root.u.def.section->output_offset
7082 + sh->root.u.def.section->output_section->vma);
252b5132
RH
7083 }
7084
8da6118f
KH
7085 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
7086 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
7087 {
7088 reg = 0;
7089 }
7090
7091 else
7092 {
55fd94b0 7093 (*_bfd_error_handler)
d003868e 7094 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 7095 "in the wrong output section (%s)"),
d003868e 7096 input_bfd,
55fd94b0
AM
7097 sym_name,
7098 howto->name,
7099 name);
252b5132
RH
7100
7101 bfd_set_error (bfd_error_bad_value);
b34976b6 7102 ret = FALSE;
252b5132
RH
7103 continue;
7104 }
7105
7106 if (r_type == R_PPC_EMB_SDA21)
7107 { /* fill in register field */
7619e7c7 7108 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 7109 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 7110 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH
7111 }
7112 }
7113 break;
7114
70bccea4 7115 /* Relocate against the beginning of the section. */
7619e7c7
AM
7116 case R_PPC_SECTOFF:
7117 case R_PPC_SECTOFF_LO:
7118 case R_PPC_SECTOFF_HI:
7119 case R_PPC_SECTOFF_HA:
55fd94b0 7120 BFD_ASSERT (sec != NULL);
252b5132 7121 addend -= sec->output_section->vma;
252b5132
RH
7122 break;
7123
70bccea4 7124 /* Negative relocations. */
7619e7c7
AM
7125 case R_PPC_EMB_NADDR32:
7126 case R_PPC_EMB_NADDR16:
7127 case R_PPC_EMB_NADDR16_LO:
7128 case R_PPC_EMB_NADDR16_HI:
7129 case R_PPC_EMB_NADDR16_HA:
8da6118f 7130 addend -= 2 * relocation;
252b5132
RH
7131 break;
7132
7619e7c7
AM
7133 case R_PPC_COPY:
7134 case R_PPC_GLOB_DAT:
7135 case R_PPC_JMP_SLOT:
7136 case R_PPC_RELATIVE:
7137 case R_PPC_PLT32:
7138 case R_PPC_PLTREL32:
7139 case R_PPC_PLT16_LO:
7140 case R_PPC_PLT16_HI:
7141 case R_PPC_PLT16_HA:
7142 case R_PPC_ADDR30:
7143 case R_PPC_EMB_RELSEC16:
7144 case R_PPC_EMB_RELST_LO:
7145 case R_PPC_EMB_RELST_HI:
7146 case R_PPC_EMB_RELST_HA:
7147 case R_PPC_EMB_BIT_FLD:
7148 (*_bfd_error_handler)
d003868e
AM
7149 (_("%B: relocation %s is not yet supported for symbol %s."),
7150 input_bfd,
7619e7c7
AM
7151 howto->name,
7152 sym_name);
252b5132
RH
7153
7154 bfd_set_error (bfd_error_invalid_operation);
b34976b6 7155 ret = FALSE;
252b5132 7156 continue;
7619e7c7 7157 }
252b5132 7158
7619e7c7
AM
7159 /* Do any further special processing. */
7160 switch (r_type)
7161 {
7162 default:
7163 break;
7164
7165 case R_PPC_ADDR16_HA:
d7128ce4 7166 case R_PPC_REL16_HA:
7619e7c7
AM
7167 case R_PPC_SECTOFF_HA:
7168 case R_PPC_TPREL16_HA:
7169 case R_PPC_DTPREL16_HA:
7619e7c7
AM
7170 case R_PPC_EMB_NADDR16_HA:
7171 case R_PPC_EMB_RELST_HA:
7172 /* It's just possible that this symbol is a weak symbol
7b609f53 7173 that's not actually defined anywhere. In that case,
7619e7c7
AM
7174 'sec' would be NULL, and we should leave the symbol
7175 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
7176 if (sec == NULL)
7177 break;
7178 /* Fall thru */
7179
7180 case R_PPC_PLT16_HA:
7181 case R_PPC_GOT16_HA:
7182 case R_PPC_GOT_TLSGD16_HA:
7183 case R_PPC_GOT_TLSLD16_HA:
7184 case R_PPC_GOT_TPREL16_HA:
7185 case R_PPC_GOT_DTPREL16_HA:
7186 /* Add 0x10000 if sign bit in 0:15 is set.
7187 Bits 0:15 are not used. */
7188 addend += 0x8000;
7619e7c7 7189 break;
252b5132
RH
7190 }
7191
252b5132 7192#ifdef DEBUG
55fd94b0
AM
7193 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
7194 "offset = %ld, addend = %ld\n",
252b5132 7195 howto->name,
8da6118f 7196 (int) r_type,
252b5132
RH
7197 sym_name,
7198 r_symndx,
7619e7c7 7199 (long) rel->r_offset,
8da6118f 7200 (long) addend);
252b5132
RH
7201#endif
7202
7619e7c7
AM
7203 if (unresolved_reloc
7204 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 7205 && h->def_dynamic))
7619e7c7
AM
7206 {
7207 (*_bfd_error_handler)
d003868e
AM
7208 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
7209 input_bfd,
7210 input_section,
7619e7c7 7211 (long) rel->r_offset,
7b609f53 7212 howto->name,
7619e7c7
AM
7213 sym_name);
7214 ret = FALSE;
7215 }
7216
252b5132
RH
7217 r = _bfd_final_link_relocate (howto,
7218 input_bfd,
7219 input_section,
7220 contents,
7619e7c7 7221 rel->r_offset,
252b5132
RH
7222 relocation,
7223 addend);
7224
7619e7c7 7225 if (r != bfd_reloc_ok)
252b5132 7226 {
7619e7c7 7227 if (r == bfd_reloc_overflow)
252b5132 7228 {
7619e7c7
AM
7229 if (warned)
7230 continue;
7231 if (h != NULL
7232 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH
7233 && howto->pc_relative)
7234 {
7235 /* Assume this is a call protected by other code that
7236 detect the symbol is undefined. If this is the case,
7237 we can safely ignore the overflow. If not, the
7238 program is hosed anyway, and a little warning isn't
7239 going to help. */
252b5132 7240
dc1bc0c9
RH
7241 continue;
7242 }
252b5132 7243
7619e7c7 7244 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 7245 (h ? &h->root : NULL),
7619e7c7
AM
7246 sym_name,
7247 howto->name,
7248 rel->r_addend,
7249 input_bfd,
7250 input_section,
7251 rel->r_offset))
7252 return FALSE;
dc1bc0c9
RH
7253 }
7254 else
7255 {
7619e7c7 7256 (*_bfd_error_handler)
d003868e
AM
7257 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
7258 input_bfd, input_section,
7b609f53 7259 (long) rel->r_offset, howto->name, sym_name, (int) r);
7619e7c7 7260 ret = FALSE;
252b5132
RH
7261 }
7262 }
7263 }
7264
252b5132
RH
7265#ifdef DEBUG
7266 fprintf (stderr, "\n");
7267#endif
7268
7269 return ret;
7270}
252b5132 7271\f
a6aa5195
AM
7272#define PPC_LO(v) ((v) & 0xffff)
7273#define PPC_HI(v) (((v) >> 16) & 0xffff)
7274#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7275
25dbc73a
AM
7276/* Finish up dynamic symbol handling. We set the contents of various
7277 dynamic sections here. */
c5fccbec 7278
b34976b6 7279static bfd_boolean
25dbc73a
AM
7280ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
7281 struct bfd_link_info *info,
7282 struct elf_link_hash_entry *h,
7283 Elf_Internal_Sym *sym)
e1a9cb8e 7284{
25dbc73a 7285 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
7286 struct plt_entry *ent;
7287 bfd_boolean doneone;
e1a9cb8e 7288
25dbc73a
AM
7289#ifdef DEBUG
7290 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
7291 h->root.root.string);
7292#endif
e1a9cb8e 7293
25dbc73a
AM
7294 htab = ppc_elf_hash_table (info);
7295 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 7296
a6aa5195
AM
7297 doneone = FALSE;
7298 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7299 if (ent->plt.offset != (bfd_vma) -1)
7300 {
7301 if (!doneone)
7302 {
7303 Elf_Internal_Rela rela;
7304 bfd_byte *loc;
7305 bfd_vma reloc_index;
e1a9cb8e 7306
4a3dc543 7307 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
7308 reloc_index = ent->plt.offset / 4;
7309 else
7310 {
7311 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
7312 / htab->plt_slot_size);
7313 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 7314 && htab->plt_type == PLT_OLD)
9d8504b1
PB
7315 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
7316 }
7317
a6aa5195
AM
7318 /* This symbol has an entry in the procedure linkage table.
7319 Set it up. */
4a3dc543 7320 if (htab->plt_type == PLT_VXWORKS)
a6aa5195 7321 {
9d8504b1
PB
7322 bfd_vma got_offset;
7323 const bfd_vma *plt_entry;
7324
7325 /* The first three entries in .got.plt are reserved. */
7326 got_offset = (reloc_index + 3) * 4;
7327
7328 /* Use the right PLT. */
7329 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
7330 : ppc_elf_vxworks_plt_entry;
7331
7332 /* Fill in the .plt on VxWorks. */
7333 if (info->shared)
7334 {
7335 bfd_vma got_offset_hi = (got_offset >> 16)
7336 + ((got_offset & 0x8000) >> 15);
7337
7338 bfd_put_32 (output_bfd,
7339 plt_entry[0] | (got_offset_hi & 0xffff),
7340 htab->plt->contents + ent->plt.offset + 0);
7341 bfd_put_32 (output_bfd,
7342 plt_entry[1] | (got_offset & 0xffff),
7343 htab->plt->contents + ent->plt.offset + 4);
7344 }
7345 else
7346 {
636ce3f5
AM
7347 bfd_vma got_loc
7348 = (got_offset
7349 + htab->elf.hgot->root.u.def.value
7350 + htab->elf.hgot->root.u.def.section->output_offset
7351 + htab->elf.hgot->root.u.def.section->output_section->vma);
9d8504b1
PB
7352 bfd_vma got_loc_hi = (got_loc >> 16)
7353 + ((got_loc & 0x8000) >> 15);
7354
7355 bfd_put_32 (output_bfd,
7356 plt_entry[0] | (got_loc_hi & 0xffff),
7357 htab->plt->contents + ent->plt.offset + 0);
7358 bfd_put_32 (output_bfd,
7359 plt_entry[1] | (got_loc & 0xffff),
7360 htab->plt->contents + ent->plt.offset + 4);
7361 }
7362
7363 bfd_put_32 (output_bfd, plt_entry[2],
7364 htab->plt->contents + ent->plt.offset + 8);
7365 bfd_put_32 (output_bfd, plt_entry[3],
7366 htab->plt->contents + ent->plt.offset + 12);
7367
7368 /* This instruction is an immediate load. The value loaded is
7369 the byte offset of the R_PPC_JMP_SLOT relocation from the
7370 start of the .rela.plt section. The value is stored in the
7371 low-order 16 bits of the load instruction. */
7372 /* NOTE: It appears that this is now an index rather than a
7373 prescaled offset. */
7374 bfd_put_32 (output_bfd,
7375 plt_entry[4] | reloc_index,
7376 htab->plt->contents + ent->plt.offset + 16);
7377 /* This instruction is a PC-relative branch whose target is
7378 the start of the PLT section. The address of this branch
7379 instruction is 20 bytes beyond the start of this PLT entry.
7380 The address is encoded in bits 6-29, inclusive. The value
7381 stored is right-shifted by two bits, permitting a 26-bit
7382 offset. */
7383 bfd_put_32 (output_bfd,
7384 (plt_entry[5]
7385 | (-(ent->plt.offset + 20) & 0x03fffffc)),
7386 htab->plt->contents + ent->plt.offset + 20);
7387 bfd_put_32 (output_bfd, plt_entry[6],
7388 htab->plt->contents + ent->plt.offset + 24);
7389 bfd_put_32 (output_bfd, plt_entry[7],
7390 htab->plt->contents + ent->plt.offset + 28);
7391
7392 /* Fill in the GOT entry corresponding to this PLT slot with
7393 the address immediately after the the "bctr" instruction
7394 in this PLT entry. */
7395 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
7396 + htab->plt->output_offset
7397 + ent->plt.offset + 16),
7398 htab->sgotplt->contents + got_offset);
7399
7400 if (!info->shared)
7401 {
7402 /* Fill in a couple of entries in .rela.plt.unloaded. */
7403 loc = htab->srelplt2->contents
7404 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
7405 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
7406 * sizeof (Elf32_External_Rela));
7407
7408 /* Provide the @ha relocation for the first instruction. */
7409 rela.r_offset = (htab->plt->output_section->vma
7410 + htab->plt->output_offset
7411 + ent->plt.offset + 2);
636ce3f5 7412 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
7413 R_PPC_ADDR16_HA);
7414 rela.r_addend = got_offset;
7415 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7416 loc += sizeof (Elf32_External_Rela);
7417
7418 /* Provide the @l relocation for the second instruction. */
7419 rela.r_offset = (htab->plt->output_section->vma
7420 + htab->plt->output_offset
7421 + ent->plt.offset + 6);
636ce3f5 7422 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
7423 R_PPC_ADDR16_LO);
7424 rela.r_addend = got_offset;
7425 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7426 loc += sizeof (Elf32_External_Rela);
7427
7428 /* Provide a relocation for the GOT entry corresponding to this
7429 PLT slot. Point it at the middle of the .plt entry. */
7430 rela.r_offset = (htab->sgotplt->output_section->vma
7431 + htab->sgotplt->output_offset
7432 + got_offset);
7325306f 7433 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
7434 R_PPC_ADDR32);
7435 rela.r_addend = ent->plt.offset + 16;
7436 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7437 }
7438
7439 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7440 In particular, the offset for the relocation is not the
7441 address of the PLT entry for this function, as specified
7442 by the ABI. Instead, the offset is set to the address of
7443 the GOT slot for this function. See EABI 4.4.4.1. */
7444 rela.r_offset = (htab->sgotplt->output_section->vma
7445 + htab->sgotplt->output_offset
7446 + got_offset);
7447
a6aa5195
AM
7448 }
7449 else
7450 {
9d8504b1
PB
7451 rela.r_offset = (htab->plt->output_section->vma
7452 + htab->plt->output_offset
7453 + ent->plt.offset);
4a3dc543 7454 if (htab->plt_type == PLT_OLD)
9d8504b1
PB
7455 {
7456 /* We don't need to fill in the .plt. The ppc dynamic
7457 linker will fill it in. */
7458 }
7459 else
7460 {
7461 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7462 + htab->glink->output_section->vma
7463 + htab->glink->output_offset);
7464 bfd_put_32 (output_bfd, val,
7465 htab->plt->contents + ent->plt.offset);
7466 }
a6aa5195 7467 }
e1a9cb8e 7468
a6aa5195 7469 /* Fill in the entry in the .rela.plt section. */
a6aa5195
AM
7470 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7471 rela.r_addend = 0;
e1a9cb8e 7472
a6aa5195
AM
7473 loc = (htab->relplt->contents
7474 + reloc_index * sizeof (Elf32_External_Rela));
7475 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 7476
a6aa5195
AM
7477 if (!h->def_regular)
7478 {
0eb4a168
AM
7479 /* Mark the symbol as undefined, rather than as
7480 defined in the .plt section. Leave the value if
7481 there were any relocations where pointer equality
7482 matters (this is a clue for the dynamic linker, to
7483 make function pointer comparisons work between an
7484 application and shared library), otherwise set it
7485 to zero. */
a6aa5195 7486 sym->st_shndx = SHN_UNDEF;
0eb4a168 7487 if (!h->pointer_equality_needed)
a6aa5195 7488 sym->st_value = 0;
0eb4a168
AM
7489 else if (!h->ref_regular_nonweak)
7490 {
625af618
AM
7491 /* This breaks function pointer comparisons, but
7492 that is better than breaking tests for a NULL
0eb4a168 7493 function pointer. */
0eb4a168
AM
7494 sym->st_value = 0;
7495 }
a6aa5195
AM
7496 }
7497 doneone = TRUE;
7498 }
e1a9cb8e 7499
4a3dc543 7500 if (htab->plt_type == PLT_NEW)
a6aa5195
AM
7501 {
7502 bfd_vma plt;
7503 unsigned char *p;
e1a9cb8e 7504
a6aa5195
AM
7505 plt = (ent->plt.offset
7506 + htab->plt->output_section->vma
7507 + htab->plt->output_offset);
7508 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
e1a9cb8e 7509
a6aa5195
AM
7510 if (info->shared || info->pie)
7511 {
7512 bfd_vma got = 0;
7513
7514 if (ent->addend >= 32768)
7515 got = (ent->addend
7516 + ent->sec->output_section->vma
7517 + ent->sec->output_offset);
7518 else if (htab->elf.hgot != NULL)
7519 got = (htab->elf.hgot->root.u.def.value
7520 + htab->elf.hgot->root.u.def.section->output_section->vma
7521 + htab->elf.hgot->root.u.def.section->output_offset);
7522
7523 plt -= got;
7524
7525 if (plt + 0x8000 < 0x10000)
7526 {
7527 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7528 p += 4;
7529 bfd_put_32 (output_bfd, MTCTR_11, p);
7530 p += 4;
7531 bfd_put_32 (output_bfd, BCTR, p);
7532 p += 4;
7533 bfd_put_32 (output_bfd, NOP, p);
7534 p += 4;
7535 }
7536 else
7537 {
7538 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7539 p += 4;
7540 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7541 p += 4;
7542 bfd_put_32 (output_bfd, MTCTR_11, p);
7543 p += 4;
7544 bfd_put_32 (output_bfd, BCTR, p);
7545 p += 4;
7546 }
7547 }
7548 else
7549 {
7550 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7551 p += 4;
7552 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7553 p += 4;
7554 bfd_put_32 (output_bfd, MTCTR_11, p);
7555 p += 4;
7556 bfd_put_32 (output_bfd, BCTR, p);
7557 p += 4;
28e99bb6
AM
7558
7559 /* We only need one non-PIC glink stub. */
7560 break;
a6aa5195
AM
7561 }
7562 }
7563 else
7564 break;
7565 }
e1a9cb8e 7566
25dbc73a
AM
7567 if (h->needs_copy)
7568 {
7569 asection *s;
7570 Elf_Internal_Rela rela;
7571 bfd_byte *loc;
e1a9cb8e 7572
25dbc73a 7573 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 7574
25dbc73a
AM
7575#ifdef DEBUG
7576 fprintf (stderr, ", copy");
7577#endif
e1a9cb8e 7578
25dbc73a 7579 BFD_ASSERT (h->dynindx != -1);
86bbe32f 7580
4dc4a9a5 7581 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
7582 s = htab->relsbss;
7583 else
7584 s = htab->relbss;
7585 BFD_ASSERT (s != NULL);
e1a9cb8e 7586
25dbc73a
AM
7587 rela.r_offset = (h->root.u.def.value
7588 + h->root.u.def.section->output_section->vma
7589 + h->root.u.def.section->output_offset);
7590 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7591 rela.r_addend = 0;
7592 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7593 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7594 }
e1a9cb8e 7595
25dbc73a
AM
7596#ifdef DEBUG
7597 fprintf (stderr, "\n");
7598#endif
e1a9cb8e 7599
25dbc73a 7600 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB
7601 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7602 || (!htab->is_vxworks
7603 && (h == htab->elf.hgot
7604 || strcmp (h->root.root.string,
7605 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 7606 sym->st_shndx = SHN_ABS;
e1a9cb8e 7607
25dbc73a
AM
7608 return TRUE;
7609}
7610\f
7611static enum elf_reloc_type_class
7612ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 7613{
25dbc73a
AM
7614 switch (ELF32_R_TYPE (rela->r_info))
7615 {
7616 case R_PPC_RELATIVE:
7617 return reloc_class_relative;
7618 case R_PPC_REL24:
7619 case R_PPC_ADDR24:
7620 case R_PPC_JMP_SLOT:
7621 return reloc_class_plt;
7622 case R_PPC_COPY:
7623 return reloc_class_copy;
7624 default:
7625 return reloc_class_normal;
7626 }
e1a9cb8e 7627}
25dbc73a
AM
7628\f
7629/* Finish up the dynamic sections. */
e1a9cb8e 7630
25dbc73a
AM
7631static bfd_boolean
7632ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7633 struct bfd_link_info *info)
e1a9cb8e 7634{
25dbc73a 7635 asection *sdyn;
9d8504b1 7636 asection *splt;
25dbc73a 7637 struct ppc_elf_link_hash_table *htab;
1fe44d79 7638 bfd_vma got;
9d8504b1 7639 bfd * dynobj;
e1a9cb8e 7640
25dbc73a
AM
7641#ifdef DEBUG
7642 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7643#endif
6b0817e5 7644
25dbc73a 7645 htab = ppc_elf_hash_table (info);
9d8504b1
PB
7646 dynobj = elf_hash_table (info)->dynobj;
7647 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7648 if (htab->is_vxworks)
7649 splt = bfd_get_section_by_name (dynobj, ".plt");
7650 else
7651 splt = NULL;
e1a9cb8e 7652
1fe44d79
AM
7653 got = 0;
7654 if (htab->elf.hgot != NULL)
7655 got = (htab->elf.hgot->root.u.def.value
7656 + htab->elf.hgot->root.u.def.section->output_section->vma
7657 + htab->elf.hgot->root.u.def.section->output_offset);
7658
25dbc73a 7659 if (htab->elf.dynamic_sections_created)
e1a9cb8e 7660 {
25dbc73a 7661 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 7662
25dbc73a 7663 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 7664
25dbc73a
AM
7665 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7666 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7667 for (; dyncon < dynconend; dyncon++)
7668 {
7669 Elf_Internal_Dyn dyn;
7670 asection *s;
e1a9cb8e 7671
9d8504b1 7672 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 7673
25dbc73a
AM
7674 switch (dyn.d_tag)
7675 {
7676 case DT_PLTGOT:
9d8504b1
PB
7677 if (htab->is_vxworks)
7678 s = htab->sgotplt;
7679 else
7680 s = htab->plt;
25dbc73a
AM
7681 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7682 break;
86bbe32f 7683
25dbc73a
AM
7684 case DT_PLTRELSZ:
7685 dyn.d_un.d_val = htab->relplt->size;
7686 break;
e1a9cb8e 7687
25dbc73a
AM
7688 case DT_JMPREL:
7689 s = htab->relplt;
7690 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7691 break;
2f89ff8d 7692
1fe44d79
AM
7693 case DT_PPC_GOT:
7694 dyn.d_un.d_ptr = got;
d7128ce4
AM
7695 break;
7696
9d8504b1
PB
7697 case DT_RELASZ:
7698 if (htab->is_vxworks)
7699 {
7700 if (htab->relplt)
7701 dyn.d_un.d_ptr -= htab->relplt->size;
7702 break;
7703 }
7704 continue;
7705
25dbc73a 7706 default:
7a2b07ff
NS
7707 if (htab->is_vxworks
7708 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
7709 break;
25dbc73a
AM
7710 continue;
7711 }
4c45e5c9 7712
25dbc73a
AM
7713 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7714 }
7715 }
4c45e5c9 7716
25dbc73a
AM
7717 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7718 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
3b36f7e6 7719 if (htab->got != NULL)
25dbc73a 7720 {
3b36f7e6
AM
7721 unsigned char *p = htab->got->contents;
7722 bfd_vma val;
2f89ff8d 7723
636ce3f5 7724 p += htab->elf.hgot->root.u.def.value;
4a3dc543 7725 if (htab->plt_type == PLT_OLD)
d7128ce4 7726 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
3b36f7e6
AM
7727
7728 val = 0;
7729 if (sdyn != NULL)
7730 val = sdyn->output_section->vma + sdyn->output_offset;
7731 bfd_put_32 (output_bfd, val, p);
25dbc73a
AM
7732
7733 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7734 }
7735
9d8504b1
PB
7736 /* Fill in the first entry in the VxWorks procedure linkage table. */
7737 if (splt && splt->size > 0)
7738 {
7739 /* Use the right PLT. */
7740 static const bfd_vma *plt_entry = NULL;
7741 plt_entry = info->shared ?
7742 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7743
7744 if (!info->shared)
7745 {
7746 bfd_vma got_value =
636ce3f5
AM
7747 (htab->elf.hgot->root.u.def.section->output_section->vma
7748 + htab->elf.hgot->root.u.def.section->output_offset
7749 + htab->elf.hgot->root.u.def.value);
9d8504b1
PB
7750 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7751
7752 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7753 splt->contents + 0);
7754 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7755 splt->contents + 4);
7756 }
7757 else
7758 {
7759 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7760 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7761 }
7762 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7763 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7764 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7765 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7766 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7767 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7768
7769 if (! info->shared)
7770 {
7771 Elf_Internal_Rela rela;
7772 bfd_byte *loc;
7773
7774 loc = htab->srelplt2->contents;
7775
7776 /* Output the @ha relocation for the first instruction. */
7777 rela.r_offset = (htab->plt->output_section->vma
7778 + htab->plt->output_offset
7779 + 2);
636ce3f5 7780 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
7781 rela.r_addend = 0;
7782 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7783 loc += sizeof (Elf32_External_Rela);
7784
7785 /* Output the @l relocation for the second instruction. */
7786 rela.r_offset = (htab->plt->output_section->vma
7787 + htab->plt->output_offset
7788 + 6);
636ce3f5 7789 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
7790 rela.r_addend = 0;
7791 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7792 loc += sizeof (Elf32_External_Rela);
7793
7794 /* Fix up the remaining relocations. They may have the wrong
7795 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7796 in which symbols were output. */
7797 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7798 {
7799 Elf_Internal_Rela rel;
7800
7801 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7802 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
7803 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7804 loc += sizeof (Elf32_External_Rela);
7805
7806 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7807 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
7808 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7809 loc += sizeof (Elf32_External_Rela);
7810
7811 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 7812 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
7813 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7814 loc += sizeof (Elf32_External_Rela);
7815 }
7816 }
7817 }
7818
d7128ce4
AM
7819 if (htab->glink != NULL && htab->glink->contents != NULL)
7820 {
7821 unsigned char *p;
7822 unsigned char *endp;
a6aa5195 7823 bfd_vma res0;
d7128ce4 7824 unsigned int i;
a6aa5195
AM
7825
7826 /*
7827 * PIC glink code is the following:
7828 *
7829 * # ith PLT code stub.
7830 * addis 11,30,(plt+(i-1)*4-got)@ha
7831 * lwz 11,(plt+(i-1)*4-got)@l(11)
7832 * mtctr 11
7833 * bctr
7834 *
7835 * # A table of branches, one for each plt entry.
176a0d42 7836 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
7837 * # addresses, so (r11 - res_0) gives the plt index * 4.
7838 * res_0: b PLTresolve
7839 * res_1: b PLTresolve
7840 * .
7841 * # Some number of entries towards the end can be nops
7842 * res_n_m3: nop
7843 * res_n_m2: nop
7844 * res_n_m1:
7845 *
7846 * PLTresolve:
7847 * addis 11,11,(1f-res_0)@ha
7848 * mflr 0
7849 * bcl 20,31,1f
7850 * 1: addi 11,11,(1b-res_0)@l
7851 * mflr 12
7852 * mtlr 0
7853 * sub 11,11,12 # r11 = index * 4
7854 * addis 12,12,(got+4-1b)@ha
7855 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7856 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7857 * mtctr 0
7858 * add 0,11,11
7859 * add 11,0,11 # r11 = index * 12 = reloc offset.
7860 * bctr
7861 */
7862 static const unsigned int pic_plt_resolve[] =
7863 {
7864 ADDIS_11_11,
7865 MFLR_0,
7866 BCL_20_31,
7867 ADDI_11_11,
7868 MFLR_12,
7869 MTLR_0,
7870 SUB_11_11_12,
7871 ADDIS_12_12,
7872 LWZ_0_12,
7873 LWZ_12_12,
7874 MTCTR_0,
7875 ADD_0_11_11,
7876 ADD_11_0_11,
7877 BCTR,
7878 NOP,
7879 NOP
7880 };
7881
176a0d42
AM
7882 /*
7883 * Non-PIC glink code is a little simpler.
7884 *
7885 * # ith PLT code stub.
7886 * lis 11,(plt+(i-1)*4)@ha
7887 * lwz 11,(plt+(i-1)*4)@l(11)
7888 * mtctr 11
7889 * bctr
7890 *
7891 * The branch table is the same, then comes
7892 *
7893 * PLTresolve:
7894 * lis 12,(got+4)@ha
7895 * addis 11,11,(-res_0)@ha
7896 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
7897 * addi 11,11,(-res_0)@l # r11 = index * 4
7898 * mtctr 0
7899 * add 0,11,11
7900 * lwz 12,(got+8)@l(12) # got[2] contains the map address
7901 * add 11,0,11 # r11 = index * 12 = reloc offset.
7902 * bctr
7903 */
d7128ce4
AM
7904 static const unsigned int plt_resolve[] =
7905 {
a6aa5195
AM
7906 LIS_12,
7907 ADDIS_11_11,
7908 LWZ_0_12,
7909 ADDI_11_11,
d7128ce4 7910 MTCTR_0,
7e8aeb9a 7911 ADD_0_11_11,
a6aa5195 7912 LWZ_12_12,
7e8aeb9a 7913 ADD_11_0_11,
d7128ce4
AM
7914 BCTR,
7915 NOP,
7916 NOP,
a6aa5195
AM
7917 NOP,
7918 NOP,
7919 NOP,
7920 NOP,
d7128ce4
AM
7921 NOP
7922 };
7923
a6aa5195
AM
7924 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7925 abort ();
7926 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
7927 abort ();
7928
a6aa5195 7929 /* Build the branch table, one for each plt entry (less one),
86b9da88 7930 and perhaps some padding. */
a6aa5195
AM
7931 p = htab->glink->contents;
7932 p += htab->glink_pltresolve;
86b9da88
AM
7933 endp = htab->glink->contents;
7934 endp += htab->glink->size - GLINK_PLTRESOLVE;
7935 while (p < endp - 8 * 4)
7936 {
7937 bfd_put_32 (output_bfd, B + endp - p, p);
7938 p += 4;
7939 }
7940 while (p < endp)
7941 {
7942 bfd_put_32 (output_bfd, NOP, p);
7943 p += 4;
7944 }
7945
7e8aeb9a 7946 res0 = (htab->glink_pltresolve
86b9da88
AM
7947 + htab->glink->output_section->vma
7948 + htab->glink->output_offset);
7949
7950 /* Last comes the PLTresolve stub. */
7e8aeb9a
AM
7951 if (info->shared || info->pie)
7952 {
a6aa5195 7953 bfd_vma bcl;
d7128ce4 7954
a6aa5195 7955 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 7956 {
a6aa5195 7957 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM
7958 p += 4;
7959 }
a6aa5195
AM
7960 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7961
7962 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7963 + htab->glink->output_section->vma
7964 + htab->glink->output_offset);
7965
7966 bfd_put_32 (output_bfd,
7967 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7968 bfd_put_32 (output_bfd,
7969 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7970 bfd_put_32 (output_bfd,
7971 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7972 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7973 {
7974 bfd_put_32 (output_bfd,
7975 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7976 bfd_put_32 (output_bfd,
7977 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7978 }
7979 else
7980 {
7981 bfd_put_32 (output_bfd,
7982 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7983 bfd_put_32 (output_bfd,
7984 LWZ_12_12 + 4, p + 9*4);
7985 }
7e8aeb9a
AM
7986 }
7987 else
d7128ce4 7988 {
a6aa5195 7989 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM
7990 {
7991 bfd_put_32 (output_bfd, plt_resolve[i], p);
7992 p += 4;
7993 }
a6aa5195
AM
7994 p -= 4 * ARRAY_SIZE (plt_resolve);
7995
7996 bfd_put_32 (output_bfd,
7997 LIS_12 + PPC_HA (got + 4), p + 0*4);
7998 bfd_put_32 (output_bfd,
7999 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
8000 bfd_put_32 (output_bfd,
8001 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
8002 if (PPC_HA (got + 4) == PPC_HA (got + 8))
8003 {
8004 bfd_put_32 (output_bfd,
8005 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
8006 bfd_put_32 (output_bfd,
8007 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
8008 }
8009 else
8010 {
8011 bfd_put_32 (output_bfd,
8012 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
8013 bfd_put_32 (output_bfd,
8014 LWZ_12_12 + 4, p + 6*4);
8015 }
d7128ce4 8016 }
d7128ce4
AM
8017 }
8018
25dbc73a
AM
8019 return TRUE;
8020}
e1a9cb8e 8021\f
252b5132
RH
8022#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
8023#define TARGET_LITTLE_NAME "elf32-powerpcle"
8024#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
8025#define TARGET_BIG_NAME "elf32-powerpc"
8026#define ELF_ARCH bfd_arch_powerpc
8027#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
8028#ifdef __QNXTARGET__
8029#define ELF_MAXPAGESIZE 0x1000
8030#else
252b5132 8031#define ELF_MAXPAGESIZE 0x10000
d0facd1b 8032#endif
b1342370 8033#define ELF_MINPAGESIZE 0x1000
24718e3b 8034#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH
8035#define elf_info_to_howto ppc_elf_info_to_howto
8036
8037#ifdef EM_CYGNUS_POWERPC
8038#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8039#endif
8040
8041#ifdef EM_PPC_OLD
8042#define ELF_MACHINE_ALT2 EM_PPC_OLD
8043#endif
8044
8045#define elf_backend_plt_not_loaded 1
252b5132 8046#define elf_backend_can_gc_sections 1
51b64d56 8047#define elf_backend_can_refcount 1
b491616a 8048#define elf_backend_rela_normal 1
252b5132 8049
43c40ab2 8050#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 8051#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 8052#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 8053#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
157090f7 8054#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 8055#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 8056#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 8057#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 8058
feee612b 8059#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
8060#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
8061#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
8062#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
8063#define elf_backend_relocate_section ppc_elf_relocate_section
8064#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
8065#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 8066#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
8067#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
8068#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
8069#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 8070#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
8071#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
8072#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
8073#define elf_backend_fake_sections ppc_elf_fake_sections
8074#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ
8075#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
8076#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 8077#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 8078#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
8079#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
8080#define elf_backend_final_write_processing ppc_elf_final_write_processing
8081#define elf_backend_write_section ppc_elf_write_section
551b43fd 8082#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 8083#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 8084#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 8085#define elf_backend_init_index_section _bfd_elf_init_1_index_section
252b5132
RH
8086
8087#include "elf32-target.h"
9d8504b1
PB
8088
8089/* VxWorks Target */
8090
8091#undef TARGET_LITTLE_SYM
8092#undef TARGET_LITTLE_NAME
8093
8094#undef TARGET_BIG_SYM
8095#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
8096#undef TARGET_BIG_NAME
8097#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
8098
d5e3d971
PB
8099/* VxWorks uses the elf default section flags for .plt. */
8100static const struct bfd_elf_special_section *
8101ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 8102{
d5e3d971
PB
8103 if (sec->name == NULL)
8104 return NULL;
8105
8106 if (strcmp (sec->name, ".plt") == 0)
8107 return _bfd_elf_get_sec_type_attr (abfd, sec);
8108
8109 return ppc_elf_get_sec_type_attr (abfd, sec);
8110}
9d8504b1
PB
8111
8112/* Like ppc_elf_link_hash_table_create, but overrides
8113 appropriately for VxWorks. */
8114static struct bfd_link_hash_table *
8115ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
8116{
8117 struct bfd_link_hash_table *ret;
8118
8119 ret = ppc_elf_link_hash_table_create (abfd);
8120 if (ret)
8121 {
8122 struct ppc_elf_link_hash_table *htab
8123 = (struct ppc_elf_link_hash_table *)ret;
8124 htab->is_vxworks = 1;
4a3dc543 8125 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
8126 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
8127 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
8128 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
8129 }
8130 return ret;
8131}
8132
8133/* Tweak magic VxWorks symbols as they are loaded. */
8134static bfd_boolean
8135ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
8136 struct bfd_link_info *info,
8137 Elf_Internal_Sym *sym,
8138 const char **namep ATTRIBUTE_UNUSED,
8139 flagword *flagsp ATTRIBUTE_UNUSED,
8140 asection **secp,
8141 bfd_vma *valp)
8142{
8143 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
8144 valp))
8145 return FALSE;
8146
8147 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
8148}
8149
9d8504b1
PB
8150static void
8151ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
8152{
8153 ppc_elf_final_write_processing(abfd, linker);
8154 elf_vxworks_final_write_processing(abfd, linker);
8155}
8156
8157/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
8158 define it. */
8159#undef elf_backend_want_plt_sym
8160#define elf_backend_want_plt_sym 1
8161#undef elf_backend_want_got_plt
8162#define elf_backend_want_got_plt 1
8163#undef elf_backend_got_symbol_offset
8164#define elf_backend_got_symbol_offset 0
8165#undef elf_backend_plt_not_loaded
8166#define elf_backend_plt_not_loaded 0
8167#undef elf_backend_plt_readonly
8168#define elf_backend_plt_readonly 1
8169#undef elf_backend_got_header_size
8170#define elf_backend_got_header_size 12
8171
468392fb
AM
8172#undef bfd_elf32_get_synthetic_symtab
8173
9d8504b1
PB
8174#undef bfd_elf32_bfd_link_hash_table_create
8175#define bfd_elf32_bfd_link_hash_table_create \
8176 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
8177#undef elf_backend_add_symbol_hook
8178#define elf_backend_add_symbol_hook \
8179 ppc_elf_vxworks_add_symbol_hook
8180#undef elf_backend_link_output_symbol_hook
8181#define elf_backend_link_output_symbol_hook \
9c72ff84 8182 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
8183#undef elf_backend_final_write_processing
8184#define elf_backend_final_write_processing \
8185 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
8186#undef elf_backend_get_sec_type_attr
8187#define elf_backend_get_sec_type_attr \
8188 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
8189#undef elf_backend_emit_relocs
8190#define elf_backend_emit_relocs \
8191 elf_vxworks_emit_relocs
8192
8193#undef elf32_bed
8194#define elf32_bed ppc_elf_vxworks_bed
8195
8196#include "elf32-target.h"
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