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[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
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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
468392fb
AM		 2294static bfd_boolean
2295section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2296{
2297 bfd_vma vma = *(bfd_vma *) ptr;
2298 return ((section->flags & SEC_ALLOC) != 0
2299 && section->vma <= vma
2300 && vma < section->vma + section->size);
2301}
2302
2303static long
2304ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2305 long dynsymcount, asymbol **dynsyms,
2306 asymbol **ret)
2307{
2308 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2309 asection *plt, *relplt, *dynamic, *glink;
2310 bfd_vma glink_vma = 0;
2311 bfd_vma resolv_vma = 0;
2312 bfd_vma stub_vma;
2313 asymbol *s;
2314 arelent *p;
2315 long count, i;
2316 size_t size;
2317 char *names;
2318 bfd_byte buf[4];
2319
2320 *ret = NULL;
2321
2322 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2323 return 0;
2324
2325 if (dynsymcount <= 0)
2326 return 0;
2327
2328 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2329 if (relplt == NULL)
2330 return 0;
2331
2332 plt = bfd_get_section_by_name (abfd, ".plt");
2333 if (plt == NULL)
2334 return 0;
2335
2336 /* Call common code to handle old-style executable PLTs. */
2337 if (elf_section_flags (plt) & SHF_EXECINSTR)
2338 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2339 dynsymcount, dynsyms, ret);
2340
2341 /* If this object was prelinked, the prelinker stored the address
2342 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2343 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2344 if (dynamic != NULL)
2345 {
2346 bfd_byte *dynbuf, *extdyn, *extdynend;
2347 size_t extdynsize;
2348 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2349
2350 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2351 return -1;
2352
2353 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2354 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2355
2356 extdyn = dynbuf;
2357 extdynend = extdyn + dynamic->size;
2358 for (; extdyn < extdynend; extdyn += extdynsize)
2359 {
2360 Elf_Internal_Dyn dyn;
2361 (*swap_dyn_in) (abfd, extdyn, &dyn);
2362
2363 if (dyn.d_tag == DT_NULL)
2364 break;
2365
2366 if (dyn.d_tag == DT_PPC_GOT)
2367 {
2368 unsigned int g_o_t = dyn.d_un.d_val;
2369 asection *got = bfd_get_section_by_name (abfd, ".got");
2370 if (got != NULL
2371 && bfd_get_section_contents (abfd, got, buf,
2372 g_o_t - got->vma + 4, 4))
2373 glink_vma = bfd_get_32 (abfd, buf);
2374 break;
2375 }
2376 }
2377 free (dynbuf);
2378 }
2379
2380 /* Otherwise we read the first plt entry. */
2381 if (glink_vma == 0)
2382 {
2383 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2384 glink_vma = bfd_get_32 (abfd, buf);
2385 }
2386
2387 if (glink_vma == 0)
2388 return 0;
2389
2390 /* The .glink section usually does not survive the final
2391 link; search for the section (usually .text) where the
2392 glink stubs now reside. */
2393 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2394 if (glink == NULL)
2395 return 0;
2396
2397 /* Determine glink PLT resolver by reading the relative branch
2398 from the first glink stub. */
2399 if (bfd_get_section_contents (abfd, glink, buf,
2400 glink_vma - glink->vma, 4))
2401 {
2402 unsigned int insn = bfd_get_32 (abfd, buf);
2403
2404 /* The first glink stub may either branch to the resolver ... */
2405 insn ^= B;
2406 if ((insn & ~0x3fffffc) == 0)
2407 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2408
2409 /* ... or fall through a bunch of NOPs. */
2410 else if ((insn ^ B ^ NOP) == 0)
2411 for (i = 4;
2412 bfd_get_section_contents (abfd, glink, buf,
2413 glink_vma - glink->vma + i, 4);
2414 i += 4)
2415 if (bfd_get_32 (abfd, buf) != NOP)
2416 {
2417 resolv_vma = glink_vma + i;
2418 break;
2419 }
2420 }
2421
2422 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2423 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2424 return -1;
2425
2426 count = relplt->size / sizeof (Elf32_External_Rela);
2427 stub_vma = glink_vma - (bfd_vma) count * 16;
2428 size = count * sizeof (asymbol);
2429 p = relplt->relocation;
2430 for (i = 0; i < count; i++, p++)
2431 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2432
2433 size += sizeof (asymbol) + sizeof ("__glink");
2434
2435 if (resolv_vma)
2436 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2437
2438 s = *ret = bfd_malloc (size);
2439 if (s == NULL)
2440 return -1;
2441
2442 names = (char *) (s + count + 1 + (resolv_vma != 0));
2443 p = relplt->relocation;
2444 for (i = 0; i < count; i++, p++)
2445 {
2446 size_t len;
2447
2448 *s = **p->sym_ptr_ptr;
2449 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2450 we are defining a symbol, ensure one of them is set. */
2451 if ((s->flags & BSF_LOCAL) == 0)
2452 s->flags |= BSF_GLOBAL;
6ba2a415 2453 s->flags |= BSF_SYNTHETIC;
468392fb
AM		 2454 s->section = glink;
2455 s->value = stub_vma - glink->vma;
2456 s->name = names;
2457 s->udata.p = NULL;
2458 len = strlen ((*p->sym_ptr_ptr)->name);
2459 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2460 names += len;
2461 memcpy (names, "@plt", sizeof ("@plt"));
2462 names += sizeof ("@plt");
2463 ++s;
2464 stub_vma += 16;
2465 }
2466
2467 /* Add a symbol at the start of the glink branch table. */
86a4952b 2468 memset (s, 0, sizeof *s);
468392fb 2469 s->the_bfd = abfd;
6ba2a415 2470 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 2471 s->section = glink;
2472 s->value = glink_vma - glink->vma;
2473 s->name = names;
2474 memcpy (names, "__glink", sizeof ("__glink"));
2475 names += sizeof ("__glink");
2476 s++;
2477 count++;
2478
2479 if (resolv_vma)
2480 {
2481 /* Add a symbol for the glink PLT resolver. */
86a4952b 2482 memset (s, 0, sizeof *s);
468392fb 2483 s->the_bfd = abfd;
6ba2a415 2484 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 2485 s->section = glink;
2486 s->value = resolv_vma - glink->vma;
2487 s->name = names;
2488 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
2489 names += sizeof ("__glink_PLTresolve");
2490 s++;
2491 count++;
2492 }
2493
2494 return count;
2495}
2496\f
25dbc73a
AM		 2497/* The following functions are specific to the ELF linker, while
2498 functions above are used generally. They appear in this file more
2499 or less in the order in which they are called. eg.
2500 ppc_elf_check_relocs is called early in the link process,
2501 ppc_elf_finish_dynamic_sections is one of the last functions
2502 called. */
252b5132 2503
25dbc73a
AM		 2504/* The PPC linker needs to keep track of the number of relocs that it
2505 decides to copy as dynamic relocs in check_relocs for each symbol.
2506 This is so that it can later discard them if they are found to be
2507 unnecessary. We store the information in a field extending the
2508 regular ELF linker hash table. */
ae9a127f 2509
25dbc73a 2510struct ppc_elf_dyn_relocs
252b5132 2511{
25dbc73a 2512 struct ppc_elf_dyn_relocs *next;
252b5132 2513
25dbc73a
AM		 2514 /* The input section of the reloc. */
2515 asection *sec;
252b5132 2516
25dbc73a
AM		 2517 /* Total number of relocs copied for the input section. */
2518 bfd_size_type count;
252b5132 2519
25dbc73a
AM		 2520 /* Number of pc-relative relocs copied for the input section. */
2521 bfd_size_type pc_count;
2522};
252b5132 2523
a6aa5195
AM		 2524/* Track PLT entries needed for a given symbol. We might need more
2525 than one glink entry per symbol. */
2526struct plt_entry
2527{
2528 struct plt_entry *next;
2529
2530 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2531 This field stores the offset into .got2 used to initialise the
2532 GOT pointer reg. It will always be at least 32768 (and for
2533 current gcc this is the only offset used). */
2534 bfd_vma addend;
2535
2536 /* The .got2 section. */
2537 asection *sec;
2538
2539 /* PLT refcount or offset. */
2540 union
2541 {
2542 bfd_signed_vma refcount;
2543 bfd_vma offset;
2544 } plt;
2545
2546 /* .glink stub offset. */
2547 bfd_vma glink_offset;
2548};
2549
1d483afe 2550/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM		 2551 selects those that must be copied when linking a shared library,
2552 even when the symbol is local. */
252b5132 2553
1d483afe
AM		 2554static int
2555must_be_dyn_reloc (struct bfd_link_info *info,
2556 enum elf_ppc_reloc_type r_type)
2557{
2558 switch (r_type)
2559 {
2560 default:
2561 return 1;
2562
2563 case R_PPC_REL24:
2564 case R_PPC_REL14:
2565 case R_PPC_REL14_BRTAKEN:
2566 case R_PPC_REL14_BRNTAKEN:
2567 case R_PPC_REL32:
2568 return 0;
2569
2570 case R_PPC_TPREL32:
2571 case R_PPC_TPREL16:
2572 case R_PPC_TPREL16_LO:
2573 case R_PPC_TPREL16_HI:
2574 case R_PPC_TPREL16_HA:
2575 return !info->executable;
2576 }
2577}
252b5132 2578
25dbc73a
AM		 2579/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2580 copying dynamic variables from a shared lib into an app's dynbss
2581 section, and instead use a dynamic relocation to point into the
2582 shared lib. */
2583#define ELIMINATE_COPY_RELOCS 1
252b5132 2584
25dbc73a 2585/* PPC ELF linker hash entry. */
252b5132 2586
25dbc73a
AM		 2587struct ppc_elf_link_hash_entry
2588{
2589 struct elf_link_hash_entry elf;
252b5132 2590
25dbc73a
AM		 2591 /* If this symbol is used in the linker created sections, the processor
2592 specific backend uses this field to map the field into the offset
2593 from the beginning of the section. */
2594 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2595
25dbc73a
AM		 2596 /* Track dynamic relocs copied for this symbol. */
2597 struct ppc_elf_dyn_relocs *dyn_relocs;
252b5132 2598
25dbc73a
AM		 2599 /* Contexts in which symbol is used in the GOT (or TOC).
2600 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2601 corresponding relocs are encountered during check_relocs.
2602 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2603 indicate the corresponding GOT entry type is not needed. */
2604#define TLS_GD 1 /* GD reloc. */
2605#define TLS_LD 2 /* LD reloc. */
2606#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2607#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2608#define TLS_TLS 16 /* Any TLS reloc. */
2609#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2610 char tls_mask;
4dc4a9a5
DJ		 2611
2612 /* Nonzero if we have seen a small data relocation referring to this
2613 symbol. */
2614 unsigned char has_sda_refs;
25dbc73a 2615};
252b5132 2616
25dbc73a
AM		 2617#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2618
2619/* PPC ELF linker hash table. */
2620
2621struct ppc_elf_link_hash_table
2622{
2623 struct elf_link_hash_table elf;
2624
2625 /* Short-cuts to get to dynamic linker sections. */
2626 asection *got;
2627 asection *relgot;
d7128ce4 2628 asection *glink;
25dbc73a
AM		 2629 asection *plt;
2630 asection *relplt;
2631 asection *dynbss;
2632 asection *relbss;
2633 asection *dynsbss;
2634 asection *relsbss;
c9a2f333 2635 elf_linker_section_t sdata[2];
25dbc73a
AM		 2636 asection *sbss;
2637
016687f8
AM		 2638 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2639 asection *srelplt2;
2640
2641 /* The .got.plt section (VxWorks only)*/
2642 asection *sgotplt;
2643
1d483afe 2644 /* Shortcut to __tls_get_addr. */
25dbc73a 2645 struct elf_link_hash_entry *tls_get_addr;
252b5132 2646
016687f8
AM		 2647 /* The bfd that forced an old-style PLT. */
2648 bfd *old_bfd;
2649
25dbc73a
AM		 2650 /* TLS local dynamic got entry handling. */
2651 union {
2652 bfd_signed_vma refcount;
2653 bfd_vma offset;
2654 } tlsld_got;
252b5132 2655
d7128ce4
AM		 2656 /* Offset of PltResolve function in glink. */
2657 bfd_vma glink_pltresolve;
2658
3b36f7e6
AM		 2659 /* Size of reserved GOT entries. */
2660 unsigned int got_header_size;
2661 /* Non-zero if allocating the header left a gap. */
2662 unsigned int got_gap;
2663
4a3dc543
RS		 2664 /* The type of PLT we have chosen to use. */
2665 enum ppc_elf_plt_type plt_type;
2666
0ba07910
AM		 2667 /* Set if we should emit symbols for stubs. */
2668 unsigned int emit_stub_syms:1;
2669
9d8504b1 2670 /* True if the target system is VxWorks. */
016687f8 2671 unsigned int is_vxworks:1;
9d8504b1
PB		 2672
2673 /* The size of PLT entries. */
2674 int plt_entry_size;
2675 /* The distance between adjacent PLT slots. */
2676 int plt_slot_size;
2677 /* The size of the first PLT entry. */
2678 int plt_initial_entry_size;
016687f8
AM		 2679
2680 /* Small local sym to section mapping cache. */
2681 struct sym_sec_cache sym_sec;
25dbc73a 2682};
252b5132 2683
25dbc73a 2684/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2685
25dbc73a
AM		 2686#define ppc_elf_hash_table(p) \
2687 ((struct ppc_elf_link_hash_table *) (p)->hash)
252b5132 2688
25dbc73a 2689/* Create an entry in a PPC ELF linker hash table. */
252b5132 2690
25dbc73a
AM		 2691static struct bfd_hash_entry *
2692ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2693 struct bfd_hash_table *table,
2694 const char *string)
252b5132 2695{
25dbc73a
AM		 2696 /* Allocate the structure if it has not already been allocated by a
2697 subclass. */
2698 if (entry == NULL)
2699 {
2700 entry = bfd_hash_allocate (table,
2701 sizeof (struct ppc_elf_link_hash_entry));
2702 if (entry == NULL)
2703 return entry;
2704 }
252b5132 2705
25dbc73a
AM		 2706 /* Call the allocation method of the superclass. */
2707 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2708 if (entry != NULL)
2709 {
2710 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2711 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2712 ppc_elf_hash_entry (entry)->tls_mask = 0;
2713 }
252b5132 2714
25dbc73a 2715 return entry;
252b5132 2716}
3dab13f6 2717
25dbc73a 2718/* Create a PPC ELF linker hash table. */
3dab13f6 2719
25dbc73a
AM		 2720static struct bfd_link_hash_table *
2721ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2722{
25dbc73a 2723 struct ppc_elf_link_hash_table *ret;
3dab13f6 2724
25dbc73a
AM		 2725 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2726 if (ret == NULL)
2727 return NULL;
3dab13f6 2728
66eb6687
AM		 2729 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2730 ppc_elf_link_hash_newfunc,
2731 sizeof (struct ppc_elf_link_hash_entry)))
3dab13f6 2732 {
25dbc73a
AM		 2733 free (ret);
2734 return NULL;
2735 }
58111eb7 2736
a6aa5195
AM		 2737 ret->elf.init_plt_refcount.refcount = 0;
2738 ret->elf.init_plt_refcount.glist = NULL;
2739 ret->elf.init_plt_offset.offset = 0;
2740 ret->elf.init_plt_offset.glist = NULL;
2741
c9a2f333
AM		 2742 ret->sdata[0].name = ".sdata";
2743 ret->sdata[0].sym_name = "_SDA_BASE_";
2744 ret->sdata[0].bss_name = ".sbss";
2745
2746 ret->sdata[1].name = ".sdata2";
2747 ret->sdata[1].sym_name = "_SDA2_BASE_";
2748 ret->sdata[1].bss_name = ".sbss2";
2749
9d8504b1
PB		 2750 ret->plt_entry_size = 12;
2751 ret->plt_slot_size = 8;
2752 ret->plt_initial_entry_size = 72;
9d8504b1 2753
25dbc73a
AM		 2754 return &ret->elf.root;
2755}
3dab13f6 2756
9d8504b1 2757/* Create .got and the related sections. */
3dab13f6 2758
25dbc73a
AM		 2759static bfd_boolean
2760ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2761{
2762 struct ppc_elf_link_hash_table *htab;
2763 asection *s;
2764 flagword flags;
3dab13f6 2765
25dbc73a
AM		 2766 if (!_bfd_elf_create_got_section (abfd, info))
2767 return FALSE;
3dab13f6 2768
25dbc73a
AM		 2769 htab = ppc_elf_hash_table (info);
2770 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2771 if (s == NULL)
2772 abort ();
3dab13f6 2773
9d8504b1
PB		 2774 if (htab->is_vxworks)
2775 {
2776 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2777 if (!htab->sgotplt)
2778 abort ();
2779 }
2780 else
2781 {
2782 /* The powerpc .got has a blrl instruction in it. Mark it
2783 executable. */
2784 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2785 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2786 if (!bfd_set_section_flags (abfd, s, flags))
2787 return FALSE;
2788 }
3dab13f6 2789
3b36f7e6
AM		 2790 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2791 | SEC_LINKER_CREATED | SEC_READONLY);
2792 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
25dbc73a 2793 if (!htab->relgot
25dbc73a
AM		 2794 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2795 return FALSE;
3dab13f6 2796
25dbc73a
AM		 2797 return TRUE;
2798}
3dab13f6 2799
25dbc73a
AM		 2800/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2801 to output sections (just like _bfd_elf_create_dynamic_sections has
2802 to create .dynbss and .rela.bss). */
3dab13f6 2803
25dbc73a
AM		 2804static bfd_boolean
2805ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2806{
2807 struct ppc_elf_link_hash_table *htab;
2808 asection *s;
2809 flagword flags;
3dab13f6 2810
25dbc73a 2811 htab = ppc_elf_hash_table (info);
3dab13f6 2812
25dbc73a
AM		 2813 if (htab->got == NULL
2814 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM		 2815 return FALSE;
2816
25dbc73a
AM		 2817 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2818 return FALSE;
3dab13f6 2819
d7128ce4
AM		 2820 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2821 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2822
2823 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2824 htab->glink = s;
2825 if (s == NULL
2826 || !bfd_set_section_alignment (abfd, s, 4))
2827 return FALSE;
3dab13f6 2828
25dbc73a 2829 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM		 2830 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2831 SEC_ALLOC | SEC_LINKER_CREATED);
2832 htab->dynsbss = s;
3496cb2a 2833 if (s == NULL)
25dbc73a 2834 return FALSE;
3dab13f6 2835
25dbc73a
AM		 2836 if (! info->shared)
2837 {
2838 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
d7128ce4 2839 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2840 htab->relsbss = s;
25dbc73a 2841 if (s == NULL
25dbc73a
AM		 2842 || ! bfd_set_section_alignment (abfd, s, 2))
2843 return FALSE;
2844 }
3dab13f6 2845
711de32c
RS		 2846 if (htab->is_vxworks
2847 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2848 return FALSE;
9d8504b1 2849
25dbc73a
AM		 2850 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2851 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2852 if (s == NULL)
2853 abort ();
3dab13f6 2854
3b36f7e6 2855 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS		 2856 if (htab->plt_type == PLT_VXWORKS)
2857 /* The VxWorks PLT is a loaded section with contents. */
2858 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM		 2859 return bfd_set_section_flags (abfd, s, flags);
2860}
3dab13f6 2861
25dbc73a 2862/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2863
25dbc73a 2864static void
fcfa13d2 2865ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM		 2866 struct elf_link_hash_entry *dir,
2867 struct elf_link_hash_entry *ind)
2868{
2869 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2870
25dbc73a
AM		 2871 edir = (struct ppc_elf_link_hash_entry *) dir;
2872 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2873
25dbc73a
AM		 2874 if (eind->dyn_relocs != NULL)
2875 {
2876 if (edir->dyn_relocs != NULL)
3dab13f6 2877 {
25dbc73a
AM		 2878 struct ppc_elf_dyn_relocs **pp;
2879 struct ppc_elf_dyn_relocs *p;
3dab13f6 2880
fcfa13d2 2881 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM		 2882 list. Merge any entries against the same section. */
2883 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2884 {
25dbc73a
AM		 2885 struct ppc_elf_dyn_relocs *q;
2886
2887 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2888 if (q->sec == p->sec)
2889 {
2890 q->pc_count += p->pc_count;
2891 q->count += p->count;
2892 *pp = p->next;
2893 break;
2894 }
2895 if (q == NULL)
2896 pp = &p->next;
3dab13f6 2897 }
25dbc73a 2898 *pp = edir->dyn_relocs;
3dab13f6 2899 }
25dbc73a
AM		 2900
2901 edir->dyn_relocs = eind->dyn_relocs;
2902 eind->dyn_relocs = NULL;
3dab13f6 2903 }
3dab13f6 2904
25dbc73a 2905 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2906 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2907
a6aa5195
AM		 2908 /* If called to transfer flags for a weakdef during processing
2909 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2910 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2911 if (!(ELIMINATE_COPY_RELOCS
2912 && eind->elf.root.type != bfd_link_hash_indirect
2913 && edir->elf.dynamic_adjusted))
2914 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2915
2916 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2917 edir->elf.ref_regular |= eind->elf.ref_regular;
2918 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2919 edir->elf.needs_plt |= eind->elf.needs_plt;
0eb4a168 2920 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
a6aa5195
AM		 2921
2922 /* If we were called to copy over info for a weak sym, that's all. */
2923 if (eind->elf.root.type != bfd_link_hash_indirect)
2924 return;
2925
2926 /* Copy over the GOT refcount entries that we may have already seen to
2927 the symbol which just became indirect. */
fcfa13d2
AM		 2928 edir->elf.got.refcount += eind->elf.got.refcount;
2929 eind->elf.got.refcount = 0;
a6aa5195
AM		 2930
2931 /* And plt entries. */
2932 if (eind->elf.plt.plist != NULL)
2933 {
2934 if (edir->elf.plt.plist != NULL)
2935 {
2936 struct plt_entry **entp;
2937 struct plt_entry *ent;
2938
2939 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2940 {
2941 struct plt_entry *dent;
2942
2943 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2944 if (dent->sec == ent->sec && dent->addend == ent->addend)
2945 {
2946 dent->plt.refcount += ent->plt.refcount;
2947 *entp = ent->next;
2948 break;
2949 }
2950 if (dent == NULL)
2951 entp = &ent->next;
2952 }
2953 *entp = edir->elf.plt.plist;
2954 }
2955
2956 edir->elf.plt.plist = eind->elf.plt.plist;
2957 eind->elf.plt.plist = NULL;
2958 }
2959
fcfa13d2 2960 if (eind->elf.dynindx != -1)
25dbc73a 2961 {
fcfa13d2
AM		 2962 if (edir->elf.dynindx != -1)
2963 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2964 edir->elf.dynstr_index);
a6aa5195
AM		 2965 edir->elf.dynindx = eind->elf.dynindx;
2966 edir->elf.dynstr_index = eind->elf.dynstr_index;
2967 eind->elf.dynindx = -1;
2968 eind->elf.dynstr_index = 0;
25dbc73a 2969 }
25dbc73a 2970}
3dab13f6 2971
25dbc73a
AM		 2972/* Hook called by the linker routine which adds symbols from an object
2973 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 2974
25dbc73a
AM		 2975static bfd_boolean
2976ppc_elf_add_symbol_hook (bfd *abfd,
2977 struct bfd_link_info *info,
2978 Elf_Internal_Sym *sym,
2979 const char **namep ATTRIBUTE_UNUSED,
2980 flagword *flagsp ATTRIBUTE_UNUSED,
2981 asection **secp,
2982 bfd_vma *valp)
2983{
2984 if (sym->st_shndx == SHN_COMMON
2985 && !info->relocatable
0c8d6e5c
AM		 2986 && is_ppc_elf (info->output_bfd)
2987 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM		 2988 {
2989 /* Common symbols less than or equal to -G nn bytes are automatically
2990 put into .sbss. */
2991 struct ppc_elf_link_hash_table *htab;
3dab13f6 2992
25dbc73a
AM		 2993 htab = ppc_elf_hash_table (info);
2994 if (htab->sbss == NULL)
2995 {
644285ef 2996 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 2997
644285ef
AM		 2998 if (!htab->elf.dynobj)
2999 htab->elf.dynobj = abfd;
3000
3496cb2a
L		 3001 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3002 ".sbss",
3003 flags);
3004 if (htab->sbss == NULL)
25dbc73a 3005 return FALSE;
3dab13f6 3006 }
3dab13f6 3007
25dbc73a
AM		 3008 *secp = htab->sbss;
3009 *valp = sym->st_size;
3010 }
3dab13f6 3011
25dbc73a 3012 return TRUE;
3dab13f6
AM		 3013}
3014\f
046183de
AM		 3015static bfd_boolean
3016create_sdata_sym (struct ppc_elf_link_hash_table *htab,
3017 elf_linker_section_t *lsect)
3018{
3019 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3020 TRUE, FALSE, TRUE);
3021 if (lsect->sym == NULL)
3022 return FALSE;
3023 if (lsect->sym->root.type == bfd_link_hash_new)
3024 lsect->sym->non_elf = 0;
3025 lsect->sym->ref_regular = 1;
3026 return TRUE;
3027}
3028
c9a2f333 3029/* Create a special linker section. */
25dbc73a 3030
c9a2f333 3031static bfd_boolean
55fd94b0
AM		 3032ppc_elf_create_linker_section (bfd *abfd,
3033 struct bfd_link_info *info,
c9a2f333
AM		 3034 flagword flags,
3035 elf_linker_section_t *lsect)
252b5132 3036{
58111eb7 3037 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 3038 asection *s;
58111eb7 3039
c9a2f333
AM		 3040 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3041 | SEC_LINKER_CREATED);
58111eb7
AM		 3042
3043 /* Record the first bfd that needs the special sections. */
3044 if (!htab->elf.dynobj)
3045 htab->elf.dynobj = abfd;
3046
3496cb2a
L		 3047 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3048 lsect->name,
3049 flags);
76750a2f 3050 if (s == NULL
76750a2f 3051 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 3052 return FALSE;
76750a2f 3053 lsect->section = s;
58111eb7 3054
046183de 3055 return create_sdata_sym (htab, lsect);
252b5132 3056}
252b5132 3057
25dbc73a
AM		 3058/* Find a linker generated pointer with a given addend and type. */
3059
3060static elf_linker_section_pointers_t *
3061elf_find_pointer_linker_section
3062 (elf_linker_section_pointers_t *linker_pointers,
3063 bfd_vma addend,
3064 elf_linker_section_t *lsect)
252b5132 3065{
25dbc73a
AM		 3066 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3067 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3068 return linker_pointers;
252b5132 3069
25dbc73a
AM		 3070 return NULL;
3071}
3072
3073/* Allocate a pointer to live in a linker created section. */
3074
3075static bfd_boolean
3076elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM		 3077 elf_linker_section_t *lsect,
3078 struct elf_link_hash_entry *h,
3079 const Elf_Internal_Rela *rel)
3080{
3081 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3082 elf_linker_section_pointers_t *linker_section_ptr;
3083 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3084 bfd_size_type amt;
3085
3086 BFD_ASSERT (lsect != NULL);
3087
3088 /* Is this a global symbol? */
3089 if (h != NULL)
3090 {
3091 struct ppc_elf_link_hash_entry *eh;
3092
3093 /* Has this symbol already been allocated? If so, our work is done. */
3094 eh = (struct ppc_elf_link_hash_entry *) h;
3095 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3096 rel->r_addend,
3097 lsect))
3098 return TRUE;
3099
3100 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM		 3101 }
3102 else
3103 {
0c8d6e5c 3104 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3105
25dbc73a
AM		 3106 /* Allocation of a pointer to a local symbol. */
3107 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3108
3109 /* Allocate a table to hold the local symbols if first time. */
3110 if (!ptr)
3111 {
0ffa91dd 3112 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM		 3113
3114 amt = num_symbols;
3115 amt *= sizeof (elf_linker_section_pointers_t *);
3116 ptr = bfd_zalloc (abfd, amt);
3117
3118 if (!ptr)
3119 return FALSE;
3120
3121 elf_local_ptr_offsets (abfd) = ptr;
3122 }
3123
3124 /* Has this symbol already been allocated? If so, our work is done. */
3125 if (elf_find_pointer_linker_section (ptr[r_symndx],
3126 rel->r_addend,
3127 lsect))
3128 return TRUE;
252b5132 3129
25dbc73a 3130 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3131 }
41fcb14e 3132
25dbc73a
AM		 3133 /* Allocate space for a pointer in the linker section, and allocate
3134 a new pointer record from internal memory. */
3135 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3136 amt = sizeof (elf_linker_section_pointers_t);
3137 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3138
25dbc73a 3139 if (!linker_section_ptr)
7619e7c7 3140 return FALSE;
41fcb14e 3141
25dbc73a
AM		 3142 linker_section_ptr->next = *ptr_linker_section_ptr;
3143 linker_section_ptr->addend = rel->r_addend;
3144 linker_section_ptr->lsect = lsect;
25dbc73a 3145 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3146
25dbc73a
AM		 3147 linker_section_ptr->offset = lsect->section->size;
3148 lsect->section->size += 4;
7619e7c7 3149
25dbc73a
AM		 3150#ifdef DEBUG
3151 fprintf (stderr,
3152 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3153 lsect->name, (long) linker_section_ptr->offset,
3154 (long) lsect->section->size);
3155#endif
7619e7c7
AM		 3156
3157 return TRUE;
41fcb14e
AM		 3158}
3159
b34976b6 3160static bfd_boolean
25dbc73a
AM		 3161update_local_sym_info (bfd *abfd,
3162 Elf_Internal_Shdr *symtab_hdr,
3163 unsigned long r_symndx,
3164 int tls_type)
252b5132 3165{
25dbc73a
AM		 3166 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3167 char *local_got_tls_masks;
252b5132 3168
25dbc73a 3169 if (local_got_refcounts == NULL)
252b5132 3170 {
25dbc73a
AM		 3171 bfd_size_type size = symtab_hdr->sh_info;
3172
3173 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
3174 local_got_refcounts = bfd_zalloc (abfd, size);
3175 if (local_got_refcounts == NULL)
b34976b6 3176 return FALSE;
25dbc73a 3177 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3178 }
41fcb14e 3179
25dbc73a
AM		 3180 local_got_refcounts[r_symndx] += 1;
3181 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
3182 local_got_tls_masks[r_symndx] |= tls_type;
3183 return TRUE;
3184}
41fcb14e 3185
a6aa5195
AM		 3186static bfd_boolean
3187update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
3188 asection *sec, bfd_vma addend)
3189{
3190 struct plt_entry *ent;
3191
3192 if (addend < 32768)
3193 sec = NULL;
3194 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3195 if (ent->sec == sec && ent->addend == addend)
3196 break;
3197 if (ent == NULL)
3198 {
3199 bfd_size_type amt = sizeof (*ent);
3200 ent = bfd_alloc (abfd, amt);
3201 if (ent == NULL)
3202 return FALSE;
3203 ent->next = h->plt.plist;
3204 ent->sec = sec;
3205 ent->addend = addend;
3206 ent->plt.refcount = 0;
3207 h->plt.plist = ent;
3208 }
3209 ent->plt.refcount += 1;
3210 return TRUE;
3211}
3212
3213static struct plt_entry *
3214find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3215{
3216 struct plt_entry *ent;
3217
3218 if (addend < 32768)
3219 sec = NULL;
3220 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3221 if (ent->sec == sec && ent->addend == addend)
3222 break;
3223 return ent;
3224}
3225
25dbc73a
AM		 3226static void
3227bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3228{
3229 (*_bfd_error_handler)
3230 (_("%B: relocation %s cannot be used when making a shared object"),
3231 abfd,
3232 ppc_elf_howto_table[r_type]->name);
3233 bfd_set_error (bfd_error_bad_value);
252b5132
RH		 3234}
3235
25dbc73a
AM		 3236/* Look through the relocs for a section during the first phase, and
3237 allocate space in the global offset table or procedure linkage
3238 table. */
252b5132 3239
b34976b6 3240static bfd_boolean
25dbc73a
AM		 3241ppc_elf_check_relocs (bfd *abfd,
3242 struct bfd_link_info *info,
3243 asection *sec,
3244 const Elf_Internal_Rela *relocs)
252b5132 3245{
7619e7c7 3246 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM		 3247 Elf_Internal_Shdr *symtab_hdr;
3248 struct elf_link_hash_entry **sym_hashes;
3249 const Elf_Internal_Rela *rel;
3250 const Elf_Internal_Rela *rel_end;
a6aa5195 3251 asection *got2, *sreloc;
25dbc73a
AM		 3252
3253 if (info->relocatable)
3254 return TRUE;
252b5132 3255
c87b5a93
AM		 3256 /* Don't do anything special with non-loaded, non-alloced sections.
3257 In particular, any relocs in such sections should not affect GOT
3258 and PLT reference counting (ie. we don't allow them to create GOT
3259 or PLT entries), there's no possibility or desire to optimize TLS
3260 relocs, and there's not much point in propagating relocs to shared
3261 libs that the dynamic linker won't relocate. */
3262 if ((sec->flags & SEC_ALLOC) == 0)
3263 return TRUE;
3264
252b5132 3265#ifdef DEBUG
25dbc73a
AM		 3266 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3267 sec, abfd);
252b5132
RH		 3268#endif
3269
0c8d6e5c 3270 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3271
25dbc73a
AM		 3272 /* Initialize howto table if not already done. */
3273 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3274 ppc_elf_howto_init ();
3275
7619e7c7 3276 htab = ppc_elf_hash_table (info);
0ffa91dd 3277 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3278 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3279 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3280 sreloc = NULL;
3281
3282 rel_end = relocs + sec->reloc_count;
3283 for (rel = relocs; rel < rel_end; rel++)
3284 {
3285 unsigned long r_symndx;
3286 enum elf_ppc_reloc_type r_type;
3287 struct elf_link_hash_entry *h;
3288 int tls_type = 0;
3289
3290 r_symndx = ELF32_R_SYM (rel->r_info);
3291 if (r_symndx < symtab_hdr->sh_info)
3292 h = NULL;
3293 else
973a3492
L		 3294 {
3295 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3296 while (h->root.type == bfd_link_hash_indirect
3297 || h->root.type == bfd_link_hash_warning)
3298 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3299 }
25dbc73a
AM		 3300
3301 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3302 This shows up in particular in an R_PPC_ADDR32 in the eabi
3303 startup code. */
3b36f7e6
AM		 3304 if (h != NULL
3305 && htab->got == NULL
3306 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3307 {
3b36f7e6
AM		 3308 if (htab->elf.dynobj == NULL)
3309 htab->elf.dynobj = abfd;
3310 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3311 return FALSE;
3312 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3313 }
252b5132 3314
25dbc73a
AM		 3315 r_type = ELF32_R_TYPE (rel->r_info);
3316 switch (r_type)
3317 {
3318 case R_PPC_GOT_TLSLD16:
3319 case R_PPC_GOT_TLSLD16_LO:
3320 case R_PPC_GOT_TLSLD16_HI:
3321 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 3322 tls_type = TLS_TLS | TLS_LD;
3323 goto dogottls;
252b5132 3324
25dbc73a
AM		 3325 case R_PPC_GOT_TLSGD16:
3326 case R_PPC_GOT_TLSGD16_LO:
3327 case R_PPC_GOT_TLSGD16_HI:
3328 case R_PPC_GOT_TLSGD16_HA:
3329 tls_type = TLS_TLS | TLS_GD;
3330 goto dogottls;
3331
3332 case R_PPC_GOT_TPREL16:
3333 case R_PPC_GOT_TPREL16_LO:
3334 case R_PPC_GOT_TPREL16_HI:
3335 case R_PPC_GOT_TPREL16_HA:
1d483afe 3336 if (!info->executable)
25dbc73a
AM		 3337 info->flags |= DF_STATIC_TLS;
3338 tls_type = TLS_TLS | TLS_TPREL;
3339 goto dogottls;
3340
3341 case R_PPC_GOT_DTPREL16:
3342 case R_PPC_GOT_DTPREL16_LO:
3343 case R_PPC_GOT_DTPREL16_HI:
3344 case R_PPC_GOT_DTPREL16_HA:
3345 tls_type = TLS_TLS | TLS_DTPREL;
3346 dogottls:
3347 sec->has_tls_reloc = 1;
3348 /* Fall thru */
252b5132 3349
25dbc73a
AM		 3350 /* GOT16 relocations */
3351 case R_PPC_GOT16:
3352 case R_PPC_GOT16_LO:
3353 case R_PPC_GOT16_HI:
3354 case R_PPC_GOT16_HA:
3355 /* This symbol requires a global offset table entry. */
3356 if (htab->got == NULL)
3357 {
3358 if (htab->elf.dynobj == NULL)
3359 htab->elf.dynobj = abfd;
3360 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3361 return FALSE;
3362 }
3363 if (h != NULL)
3364 {
3365 h->got.refcount += 1;
3366 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3367 }
3368 else
3369 /* This is a global offset table entry for a local symbol. */
3370 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3371 return FALSE;
3372 break;
252b5132 3373
25dbc73a
AM		 3374 /* Indirect .sdata relocation. */
3375 case R_PPC_EMB_SDAI16:
3376 if (info->shared)
3377 {
3378 bad_shared_reloc (abfd, r_type);
3379 return FALSE;
3380 }
c9a2f333
AM		 3381 if (htab->sdata[0].section == NULL
3382 && !ppc_elf_create_linker_section (abfd, info, 0,
3383 &htab->sdata[0]))
3384 return FALSE;
76750a2f
AM		 3385 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3386 h, rel))
25dbc73a 3387 return FALSE;
046183de
AM		 3388 if (h != NULL)
3389 {
3390 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3391 h->non_got_ref = TRUE;
3392 }
25dbc73a 3393 break;
252b5132 3394
25dbc73a
AM		 3395 /* Indirect .sdata2 relocation. */
3396 case R_PPC_EMB_SDA2I16:
3397 if (info->shared)
3398 {
3399 bad_shared_reloc (abfd, r_type);
3400 return FALSE;
3401 }
c9a2f333
AM		 3402 if (htab->sdata[1].section == NULL
3403 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3404 &htab->sdata[1]))
3405 return FALSE;
76750a2f
AM		 3406 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3407 h, rel))
25dbc73a 3408 return FALSE;
046183de
AM		 3409 if (h != NULL)
3410 {
3411 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3412 h->non_got_ref = TRUE;
3413 }
25dbc73a 3414 break;
252b5132 3415
25dbc73a 3416 case R_PPC_SDAREL16:
046183de
AM		 3417 if (info->shared)
3418 {
3419 bad_shared_reloc (abfd, r_type);
3420 return FALSE;
3421 }
3422 if (htab->sdata[0].sym == NULL
3423 && !create_sdata_sym (htab, &htab->sdata[0]))
3424 return FALSE;
3425 if (h != NULL)
3426 {
3427 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3428 h->non_got_ref = TRUE;
3429 }
3430 break;
3431
25dbc73a 3432 case R_PPC_EMB_SDA2REL:
046183de
AM		 3433 if (info->shared)
3434 {
3435 bad_shared_reloc (abfd, r_type);
3436 return FALSE;
3437 }
3438 if (htab->sdata[1].sym == NULL
3439 && !create_sdata_sym (htab, &htab->sdata[1]))
3440 return FALSE;
3441 if (h != NULL)
3442 {
3443 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3444 h->non_got_ref = TRUE;
3445 }
3446 break;
3447
25dbc73a
AM		 3448 case R_PPC_EMB_SDA21:
3449 case R_PPC_EMB_RELSDA:
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 (htab->sdata[1].sym == NULL
3459 && !create_sdata_sym (htab, &htab->sdata[1]))
3460 return FALSE;
3461 if (h != NULL)
3462 {
3463 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3464 h->non_got_ref = TRUE;
3465 }
3466 break;
3467
25dbc73a
AM		 3468 case R_PPC_EMB_NADDR32:
3469 case R_PPC_EMB_NADDR16:
3470 case R_PPC_EMB_NADDR16_LO:
3471 case R_PPC_EMB_NADDR16_HI:
3472 case R_PPC_EMB_NADDR16_HA:
3473 if (info->shared)
3474 {
3475 bad_shared_reloc (abfd, r_type);
3476 return FALSE;
3477 }
4dc4a9a5 3478 if (h != NULL)
046183de 3479 h->non_got_ref = TRUE;
25dbc73a 3480 break;
252b5132 3481
25dbc73a
AM		 3482 case R_PPC_PLT32:
3483 case R_PPC_PLTREL24:
3484 case R_PPC_PLTREL32:
3485 case R_PPC_PLT16_LO:
3486 case R_PPC_PLT16_HI:
3487 case R_PPC_PLT16_HA:
3488#ifdef DEBUG
3489 fprintf (stderr, "Reloc requires a PLT entry\n");
3490#endif
3491 /* This symbol requires a procedure linkage table entry. We
3492 actually build the entry in finish_dynamic_symbol,
3493 because this might be a case of linking PIC code without
3494 linking in any dynamic objects, in which case we don't
3495 need to generate a procedure linkage table after all. */
7619e7c7 3496
25dbc73a
AM		 3497 if (h == NULL)
3498 {
3499 /* It does not make sense to have a procedure linkage
3500 table entry for a local symbol. */
3501 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3502 "local symbol"),
3503 abfd,
3504 sec,
3505 (long) rel->r_offset,
3506 ppc_elf_howto_table[r_type]->name);
3507 bfd_set_error (bfd_error_bad_value);
3508 return FALSE;
3509 }
a6aa5195
AM		 3510 else
3511 {
016687f8 3512 bfd_vma addend = 0;
ee05f2fe 3513
016687f8
AM		 3514 if (r_type == R_PPC_PLTREL24)
3515 {
3516 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3517 addend = rel->r_addend;
3518 }
a6aa5195
AM		 3519 h->needs_plt = 1;
3520 if (!update_plt_info (abfd, h, got2, addend))
3521 return FALSE;
3522 }
25dbc73a 3523 break;
ee05f2fe 3524
25dbc73a
AM		 3525 /* The following relocations don't need to propagate the
3526 relocation if linking a shared object since they are
3527 section relative. */
3528 case R_PPC_SECTOFF:
3529 case R_PPC_SECTOFF_LO:
3530 case R_PPC_SECTOFF_HI:
3531 case R_PPC_SECTOFF_HA:
3532 case R_PPC_DTPREL16:
3533 case R_PPC_DTPREL16_LO:
3534 case R_PPC_DTPREL16_HI:
3535 case R_PPC_DTPREL16_HA:
3536 case R_PPC_TOC16:
3537 break;
252b5132 3538
d7128ce4
AM		 3539 case R_PPC_REL16:
3540 case R_PPC_REL16_LO:
3541 case R_PPC_REL16_HI:
3542 case R_PPC_REL16_HA:
016687f8 3543 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM		 3544 break;
3545
a6aa5195 3546 /* These are just markers. */
25dbc73a
AM		 3547 case R_PPC_TLS:
3548 case R_PPC_EMB_MRKREF:
3549 case R_PPC_NONE:
3550 case R_PPC_max:
3551 break;
252b5132 3552
25dbc73a
AM		 3553 /* These should only appear in dynamic objects. */
3554 case R_PPC_COPY:
3555 case R_PPC_GLOB_DAT:
3556 case R_PPC_JMP_SLOT:
3557 case R_PPC_RELATIVE:
3558 break;
252b5132 3559
25dbc73a
AM		 3560 /* These aren't handled yet. We'll report an error later. */
3561 case R_PPC_ADDR30:
3562 case R_PPC_EMB_RELSEC16:
3563 case R_PPC_EMB_RELST_LO:
3564 case R_PPC_EMB_RELST_HI:
3565 case R_PPC_EMB_RELST_HA:
3566 case R_PPC_EMB_BIT_FLD:
3567 break;
252b5132 3568
25dbc73a
AM		 3569 /* This refers only to functions defined in the shared library. */
3570 case R_PPC_LOCAL24PC:
4a3dc543 3571 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM		 3572 {
3573 htab->plt_type = PLT_OLD;
3574 htab->old_bfd = abfd;
3575 }
25dbc73a 3576 break;
252b5132 3577
25dbc73a
AM		 3578 /* This relocation describes the C++ object vtable hierarchy.
3579 Reconstruct it for later use during GC. */
3580 case R_PPC_GNU_VTINHERIT:
3581 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3582 return FALSE;
3583 break;
252b5132 3584
25dbc73a
AM		 3585 /* This relocation describes which C++ vtable entries are actually
3586 used. Record for later use during GC. */
3587 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB		 3588 BFD_ASSERT (h != NULL);
3589 if (h != NULL
3590 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM		 3591 return FALSE;
3592 break;
252b5132 3593
25dbc73a
AM		 3594 /* We shouldn't really be seeing these. */
3595 case R_PPC_TPREL32:
1d483afe
AM		 3596 case R_PPC_TPREL16:
3597 case R_PPC_TPREL16_LO:
3598 case R_PPC_TPREL16_HI:
3599 case R_PPC_TPREL16_HA:
3600 if (!info->executable)
25dbc73a
AM		 3601 info->flags |= DF_STATIC_TLS;
3602 goto dodyn;
252b5132 3603
25dbc73a
AM		 3604 /* Nor these. */
3605 case R_PPC_DTPMOD32:
3606 case R_PPC_DTPREL32:
3607 goto dodyn;
252b5132 3608
9edfd1af
AM		 3609 case R_PPC_REL32:
3610 if (h == NULL
3611 && got2 != NULL
3612 && (sec->flags & SEC_CODE) != 0
3613 && (info->shared || info->pie)
4a3dc543 3614 && htab->plt_type == PLT_UNSET)
9edfd1af
AM		 3615 {
3616 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3617 the start of a function, which assembles to a REL32
3618 reference to .got2. If we detect one of these, then
3619 force the old PLT layout because the linker cannot
3620 reliably deduce the GOT pointer value needed for
3621 PLT call stubs. */
3622 asection *s;
3623
3624 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3625 r_symndx);
3626 if (s == got2)
016687f8
AM		 3627 {
3628 htab->plt_type = PLT_OLD;
3629 htab->old_bfd = abfd;
3630 }
9edfd1af 3631 }
7123df0e 3632 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3633 break;
625af618
AM		 3634 /* fall through */
3635
3636 case R_PPC_ADDR32:
3637 case R_PPC_ADDR16:
3638 case R_PPC_ADDR16_LO:
3639 case R_PPC_ADDR16_HI:
3640 case R_PPC_ADDR16_HA:
3641 case R_PPC_UADDR32:
3642 case R_PPC_UADDR16:
3643 if (h != NULL && !info->shared)
3644 {
3645 /* We may need a plt entry if the symbol turns out to be
3646 a function defined in a dynamic object. */
3647 if (!update_plt_info (abfd, h, NULL, 0))
3648 return FALSE;
3649
3650 /* We may need a copy reloc too. */
3651 h->non_got_ref = 1;
3652 h->pointer_equality_needed = 1;
3653 }
3654 goto dodyn;
9edfd1af 3655
25dbc73a
AM		 3656 case R_PPC_REL24:
3657 case R_PPC_REL14:
3658 case R_PPC_REL14_BRTAKEN:
3659 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3660 if (h == NULL)
25dbc73a 3661 break;
7123df0e 3662 if (h == htab->elf.hgot)
d7128ce4 3663 {
7123df0e 3664 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3665 {
3666 htab->plt_type = PLT_OLD;
3667 htab->old_bfd = abfd;
3668 }
d7128ce4
AM		 3669 break;
3670 }
25dbc73a 3671 /* fall through */
ee05f2fe 3672
25dbc73a 3673 case R_PPC_ADDR24:
25dbc73a
AM		 3674 case R_PPC_ADDR14:
3675 case R_PPC_ADDR14_BRTAKEN:
3676 case R_PPC_ADDR14_BRNTAKEN:
25dbc73a
AM		 3677 if (h != NULL && !info->shared)
3678 {
3679 /* We may need a plt entry if the symbol turns out to be
3680 a function defined in a dynamic object. */
a6aa5195
AM		 3681 if (!update_plt_info (abfd, h, NULL, 0))
3682 return FALSE;
625af618 3683 break;
25dbc73a 3684 }
7619e7c7 3685
25dbc73a
AM		 3686 dodyn:
3687 /* If we are creating a shared library, and this is a reloc
3688 against a global symbol, or a non PC relative reloc
3689 against a local symbol, then we need to copy the reloc
3690 into the shared library. However, if we are linking with
3691 -Bsymbolic, we do not need to copy a reloc against a
3692 global symbol which is defined in an object we are
3693 including in the link (i.e., DEF_REGULAR is set). At
3694 this point we have not seen all the input files, so it is
3695 possible that DEF_REGULAR is not set now but will be set
3696 later (it is never cleared). In case of a weak definition,
3697 DEF_REGULAR may be cleared later by a strong definition in
3698 a shared library. We account for that possibility below by
3699 storing information in the dyn_relocs field of the hash
3700 table entry. A similar situation occurs when creating
3701 shared libraries and symbol visibility changes render the
3702 symbol local.
7619e7c7 3703
25dbc73a
AM		 3704 If on the other hand, we are creating an executable, we
3705 may need to keep relocations for symbols satisfied by a
3706 dynamic library if we manage to avoid copy relocs for the
3707 symbol. */
3708 if ((info->shared
1d483afe 3709 && (must_be_dyn_reloc (info, r_type)
25dbc73a
AM		 3710 || (h != NULL
3711 && (! info->symbolic
3712 || h->root.type == bfd_link_hash_defweak
3713 || !h->def_regular))))
3714 || (ELIMINATE_COPY_RELOCS
3715 && !info->shared
25dbc73a
AM		 3716 && h != NULL
3717 && (h->root.type == bfd_link_hash_defweak
3718 || !h->def_regular)))
3719 {
3720 struct ppc_elf_dyn_relocs *p;
3721 struct ppc_elf_dyn_relocs **head;
7619e7c7 3722
25dbc73a
AM		 3723#ifdef DEBUG
3724 fprintf (stderr,
3725 "ppc_elf_check_relocs needs to "
3726 "create relocation for %s\n",
3727 (h && h->root.root.string
3728 ? h->root.root.string : "<unknown>"));
3729#endif
3730 if (sreloc == NULL)
3731 {
3732 const char *name;
7619e7c7 3733
25dbc73a
AM		 3734 name = (bfd_elf_string_from_elf_section
3735 (abfd,
3736 elf_elfheader (abfd)->e_shstrndx,
3737 elf_section_data (sec)->rel_hdr.sh_name));
3738 if (name == NULL)
3739 return FALSE;
7619e7c7 3740
0112cd26 3741 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
25dbc73a
AM		 3742 && strcmp (bfd_get_section_name (abfd, sec),
3743 name + 5) == 0);
7619e7c7 3744
c9a2f333
AM		 3745 if (htab->elf.dynobj == NULL)
3746 htab->elf.dynobj = abfd;
25dbc73a
AM		 3747 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3748 if (sreloc == NULL)
3749 {
3750 flagword flags;
7619e7c7 3751
25dbc73a 3752 flags = (SEC_HAS_CONTENTS | SEC_READONLY
c87b5a93
AM		 3753 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3754 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 3755 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3756 name,
3757 flags);
25dbc73a 3758 if (sreloc == NULL
25dbc73a
AM		 3759 || ! bfd_set_section_alignment (htab->elf.dynobj,
3760 sreloc, 2))
3761 return FALSE;
3762 }
3763 elf_section_data (sec)->sreloc = sreloc;
3764 }
7619e7c7 3765
25dbc73a
AM		 3766 /* If this is a global symbol, we count the number of
3767 relocations we need for this symbol. */
3768 if (h != NULL)
3769 {
3770 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3771 }
3772 else
3773 {
3774 /* Track dynamic relocs needed for local syms too.
3775 We really need local syms available to do this
3776 easily. Oh well. */
7619e7c7 3777
25dbc73a 3778 asection *s;
6edfbbad
DJ		 3779 void *vpp;
3780
25dbc73a
AM		 3781 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3782 sec, r_symndx);
3783 if (s == NULL)
3784 return FALSE;
7fce784e 3785
6edfbbad
DJ		 3786 vpp = &elf_section_data (s)->local_dynrel;
3787 head = (struct ppc_elf_dyn_relocs **) vpp;
25dbc73a 3788 }
7fce784e 3789
25dbc73a
AM		 3790 p = *head;
3791 if (p == NULL || p->sec != sec)
3792 {
3793 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3794 if (p == NULL)
3795 return FALSE;
3796 p->next = *head;
3797 *head = p;
3798 p->sec = sec;
3799 p->count = 0;
3800 p->pc_count = 0;
3801 }
3802
3803 p->count += 1;
1d483afe 3804 if (!must_be_dyn_reloc (info, r_type))
25dbc73a 3805 p->pc_count += 1;
7619e7c7 3806 }
25dbc73a
AM		 3807
3808 break;
7619e7c7
AM		 3809 }
3810 }
ee05f2fe 3811
25dbc73a
AM		 3812 return TRUE;
3813}
3814\f
34c8bcba
JM		 3815
3816/* Merge object attributes from IBFD into OBFD. Raise an error if
3817 there are conflicting attributes. */
3818static bfd_boolean
3819ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3820{
c6e65352
DJ		 3821 obj_attribute *in_attr, *in_attrs;
3822 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM		 3823
3824 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3825 {
3826 /* This is the first object. Copy the attributes. */
3827 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3828
3829 /* Use the Tag_null value to indicate the attributes have been
3830 initialized. */
3831 elf_known_obj_attributes_proc (obfd)[0].i = 1;
3832
3833 return TRUE;
3834 }
3835
c6e65352
DJ		 3836 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3837 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3838
34c8bcba
JM		 3839 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3840 non-conflicting ones. */
c6e65352
DJ		 3841 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
3842 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
3843 if (in_attr->i != out_attr->i)
34c8bcba 3844 {
c6e65352
DJ		 3845 out_attr->type = 1;
3846 if (out_attr->i == 0)
3847 out_attr->i = in_attr->i;
3848 else if (in_attr->i == 0)
34c8bcba 3849 ;
c6e65352 3850 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM		 3851 _bfd_error_handler
3852 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
c6e65352 3853 else if (out_attr->i == 2 && in_attr->i == 1)
34c8bcba
JM		 3854 _bfd_error_handler
3855 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
c6e65352 3856 else if (in_attr->i > 2)
34c8bcba
JM		 3857 _bfd_error_handler
3858 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 3859 in_attr->i);
34c8bcba
JM		 3860 else
3861 _bfd_error_handler
3862 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ		 3863 out_attr->i);
3864 }
3865
3866 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
3867 merge non-conflicting ones. */
3868 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
3869 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
3870 if (in_attr->i != out_attr->i)
3871 {
3872 const char *in_abi = NULL, *out_abi = NULL;
3873
3874 switch (in_attr->i)
3875 {
3876 case 1: in_abi = "generic"; break;
3877 case 2: in_abi = "AltiVec"; break;
3878 case 3: in_abi = "SPE"; break;
3879 }
3880
3881 switch (out_attr->i)
3882 {
3883 case 1: out_abi = "generic"; break;
3884 case 2: out_abi = "AltiVec"; break;
3885 case 3: out_abi = "SPE"; break;
3886 }
3887
3888 out_attr->type = 1;
3889 if (out_attr->i == 0)
3890 out_attr->i = in_attr->i;
3891 else if (in_attr->i == 0)
3892 ;
3893 /* For now, allow generic to transition to AltiVec or SPE
3894 without a warning. If GCC marked files with their stack
3895 alignment and used don't-care markings for files which are
3896 not affected by the vector ABI, we could warn about this
3897 case too. */
3898 else if (out_attr->i == 1)
3899 out_attr->i = in_attr->i;
3900 else if (in_attr->i == 1)
3901 ;
3902 else if (in_abi == NULL)
3903 _bfd_error_handler
3904 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
3905 in_attr->i);
3906 else if (out_abi == NULL)
3907 _bfd_error_handler
3908 (_("Warning: %B uses unknown vector ABI %d"), obfd,
3909 in_attr->i);
3910 else
3911 _bfd_error_handler
3912 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
3913 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM		 3914 }
3915
3916 /* Merge Tag_compatibility attributes and any common GNU ones. */
3917 _bfd_elf_merge_object_attributes (ibfd, obfd);
3918
3919 return TRUE;
3920}
3921
8853c3d3
AM		 3922/* Merge backend specific data from an object file to the output
3923 object file when linking. */
3924
3925static bfd_boolean
3926ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3927{
3928 flagword old_flags;
3929 flagword new_flags;
3930 bfd_boolean error;
3931
0c8d6e5c 3932 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM		 3933 return TRUE;
3934
3935 /* Check if we have the same endianess. */
3936 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3937 return FALSE;
3938
34c8bcba
JM		 3939 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3940 return FALSE;
3941
8853c3d3
AM		 3942 new_flags = elf_elfheader (ibfd)->e_flags;
3943 old_flags = elf_elfheader (obfd)->e_flags;
3944 if (!elf_flags_init (obfd))
3945 {
3946 /* First call, no flags set. */
3947 elf_flags_init (obfd) = TRUE;
3948 elf_elfheader (obfd)->e_flags = new_flags;
3949 }
3950
3951 /* Compatible flags are ok. */
3952 else if (new_flags == old_flags)
3953 ;
3954
3955 /* Incompatible flags. */
3956 else
3957 {
3958 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3959 to be linked with either. */
3960 error = FALSE;
3961 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3962 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3963 {
3964 error = TRUE;
3965 (*_bfd_error_handler)
3966 (_("%B: compiled with -mrelocatable and linked with "
3967 "modules compiled normally"), ibfd);
3968 }
3969 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3970 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3971 {
3972 error = TRUE;
3973 (*_bfd_error_handler)
3974 (_("%B: compiled normally and linked with "
3975 "modules compiled with -mrelocatable"), ibfd);
3976 }
3977
3978 /* The output is -mrelocatable-lib iff both the input files are. */
3979 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3980 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3981
3982 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3983 but each input file is either -mrelocatable or -mrelocatable-lib. */
3984 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3985 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3986 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3987 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3988
3989 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3990 any module uses it. */
3991 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3992
3993 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3994 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3995
3996 /* Warn about any other mismatches. */
3997 if (new_flags != old_flags)
3998 {
3999 error = TRUE;
4000 (*_bfd_error_handler)
4001 (_("%B: uses different e_flags (0x%lx) fields "
4002 "than previous modules (0x%lx)"),
4003 ibfd, (long) new_flags, (long) old_flags);
4004 }
4005
4006 if (error)
4007 {
4008 bfd_set_error (bfd_error_bad_value);
4009 return FALSE;
4010 }
4011 }
4012
4013 return TRUE;
4014}
4015\f
d7128ce4
AM		 4016/* Choose which PLT scheme to use, and set .plt flags appropriately.
4017 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4018int
4019ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4020 struct bfd_link_info *info,
016687f8 4021 enum ppc_elf_plt_type plt_style,
0ba07910 4022 int emit_stub_syms)
d7128ce4
AM		 4023{
4024 struct ppc_elf_link_hash_table *htab;
9d8504b1 4025 flagword flags;
d7128ce4
AM		 4026
4027 htab = ppc_elf_hash_table (info);
4a3dc543
RS		 4028
4029 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 4030 {
4031 if (plt_style == PLT_OLD)
4032 htab->plt_type = PLT_OLD;
4033 else
4034 {
4035 bfd *ibfd;
4036 enum ppc_elf_plt_type plt_type = plt_style;
4037
4038 /* Look through the reloc flags left by ppc_elf_check_relocs.
4039 Use the old style bss plt if a file makes plt calls
4040 without using the new relocs, and if ld isn't given
4041 --secure-plt and we never see REL16 relocs. */
4042 if (plt_type == PLT_UNSET)
4043 plt_type = PLT_OLD;
60b31e8d 4044 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
0c8d6e5c 4045 if (is_ppc_elf (ibfd))
016687f8
AM		 4046 {
4047 if (ppc_elf_tdata (ibfd)->has_rel16)
4048 plt_type = PLT_NEW;
4049 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4050 {
4051 plt_type = PLT_OLD;
4052 htab->old_bfd = ibfd;
4053 break;
4054 }
4055 }
4056 htab->plt_type = plt_type;
4057 }
4058 }
4059 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4060 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
d7128ce4 4061
0ba07910
AM		 4062 htab->emit_stub_syms = emit_stub_syms;
4063
4a3dc543 4064 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 4065
4a3dc543 4066 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 4067 {
4068 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4069 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM		 4070
4071 /* The new PLT is a loaded section. */
4072 if (htab->plt != NULL
4073 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4074 return -1;
4075
4076 /* The new GOT is not executable. */
4077 if (htab->got != NULL
4078 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4079 return -1;
d7128ce4
AM		 4080 }
4081 else
4082 {
4083 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM		 4084 if (htab->glink != NULL
4085 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4086 return -1;
d7128ce4 4087 }
4a3dc543 4088 return htab->plt_type == PLT_NEW;
d7128ce4
AM		 4089}
4090\f
25dbc73a
AM		 4091/* Return the section that should be marked against GC for a given
4092 relocation. */
586119b3 4093
25dbc73a
AM		 4094static asection *
4095ppc_elf_gc_mark_hook (asection *sec,
07adf181 4096 struct bfd_link_info *info,
25dbc73a
AM		 4097 Elf_Internal_Rela *rel,
4098 struct elf_link_hash_entry *h,
4099 Elf_Internal_Sym *sym)
4100{
4101 if (h != NULL)
07adf181
AM		 4102 switch (ELF32_R_TYPE (rel->r_info))
4103 {
4104 case R_PPC_GNU_VTINHERIT:
4105 case R_PPC_GNU_VTENTRY:
4106 return NULL;
4107 }
4108
4109 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 4110}
a876ecf9 4111
25dbc73a
AM		 4112/* Update the got, plt and dynamic reloc reference counts for the
4113 section being removed. */
4114
4115static bfd_boolean
4116ppc_elf_gc_sweep_hook (bfd *abfd,
4117 struct bfd_link_info *info,
4118 asection *sec,
4119 const Elf_Internal_Rela *relocs)
4120{
4121 struct ppc_elf_link_hash_table *htab;
4122 Elf_Internal_Shdr *symtab_hdr;
4123 struct elf_link_hash_entry **sym_hashes;
4124 bfd_signed_vma *local_got_refcounts;
4125 const Elf_Internal_Rela *rel, *relend;
a6aa5195 4126 asection *got2;
25dbc73a 4127
7dda2462
TG		 4128 if (info->relocatable)
4129 return TRUE;
4130
c87b5a93
AM		 4131 if ((sec->flags & SEC_ALLOC) == 0)
4132 return TRUE;
4133
25dbc73a
AM		 4134 elf_section_data (sec)->local_dynrel = NULL;
4135
4136 htab = ppc_elf_hash_table (info);
0ffa91dd 4137 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM		 4138 sym_hashes = elf_sym_hashes (abfd);
4139 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 4140 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 4141
4142 relend = relocs + sec->reloc_count;
4143 for (rel = relocs; rel < relend; rel++)
4144 {
4145 unsigned long r_symndx;
4146 enum elf_ppc_reloc_type r_type;
4147 struct elf_link_hash_entry *h = NULL;
4148
4149 r_symndx = ELF32_R_SYM (rel->r_info);
4150 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 4151 {
25dbc73a
AM		 4152 struct ppc_elf_dyn_relocs **pp, *p;
4153 struct ppc_elf_link_hash_entry *eh;
4154
4155 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4156 while (h->root.type == bfd_link_hash_indirect
4157 || h->root.type == bfd_link_hash_warning)
4158 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4159 eh = (struct ppc_elf_link_hash_entry *) h;
4160
4161 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4162 if (p->sec == sec)
4163 {
4164 /* Everything must go for SEC. */
4165 *pp = p->next;
4166 break;
4167 }
a876ecf9 4168 }
ee05f2fe 4169
25dbc73a
AM		 4170 r_type = ELF32_R_TYPE (rel->r_info);
4171 switch (r_type)
ee05f2fe 4172 {
25dbc73a
AM		 4173 case R_PPC_GOT_TLSLD16:
4174 case R_PPC_GOT_TLSLD16_LO:
4175 case R_PPC_GOT_TLSLD16_HI:
4176 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 4177 case R_PPC_GOT_TLSGD16:
4178 case R_PPC_GOT_TLSGD16_LO:
4179 case R_PPC_GOT_TLSGD16_HI:
4180 case R_PPC_GOT_TLSGD16_HA:
4181 case R_PPC_GOT_TPREL16:
4182 case R_PPC_GOT_TPREL16_LO:
4183 case R_PPC_GOT_TPREL16_HI:
4184 case R_PPC_GOT_TPREL16_HA:
4185 case R_PPC_GOT_DTPREL16:
4186 case R_PPC_GOT_DTPREL16_LO:
4187 case R_PPC_GOT_DTPREL16_HI:
4188 case R_PPC_GOT_DTPREL16_HA:
4189 case R_PPC_GOT16:
4190 case R_PPC_GOT16_LO:
4191 case R_PPC_GOT16_HI:
4192 case R_PPC_GOT16_HA:
4193 if (h != NULL)
ee05f2fe 4194 {
25dbc73a
AM		 4195 if (h->got.refcount > 0)
4196 h->got.refcount--;
ee05f2fe 4197 }
25dbc73a
AM		 4198 else if (local_got_refcounts != NULL)
4199 {
4200 if (local_got_refcounts[r_symndx] > 0)
4201 local_got_refcounts[r_symndx]--;
4202 }
4203 break;
ee05f2fe 4204
25dbc73a
AM		 4205 case R_PPC_REL24:
4206 case R_PPC_REL14:
4207 case R_PPC_REL14_BRTAKEN:
4208 case R_PPC_REL14_BRNTAKEN:
4209 case R_PPC_REL32:
3b36f7e6 4210 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM		 4211 break;
4212 /* Fall thru */
ee05f2fe 4213
25dbc73a
AM		 4214 case R_PPC_ADDR32:
4215 case R_PPC_ADDR24:
4216 case R_PPC_ADDR16:
4217 case R_PPC_ADDR16_LO:
4218 case R_PPC_ADDR16_HI:
4219 case R_PPC_ADDR16_HA:
4220 case R_PPC_ADDR14:
4221 case R_PPC_ADDR14_BRTAKEN:
4222 case R_PPC_ADDR14_BRNTAKEN:
4223 case R_PPC_UADDR32:
4224 case R_PPC_UADDR16:
87538722
AM		 4225 if (info->shared)
4226 break;
4227
25dbc73a
AM		 4228 case R_PPC_PLT32:
4229 case R_PPC_PLTREL24:
87538722 4230 case R_PPC_PLTREL32:
25dbc73a
AM		 4231 case R_PPC_PLT16_LO:
4232 case R_PPC_PLT16_HI:
4233 case R_PPC_PLT16_HA:
4234 if (h != NULL)
4235 {
a6aa5195
AM		 4236 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
4237 struct plt_entry *ent = find_plt_ent (h, got2, addend);
4238 if (ent->plt.refcount > 0)
4239 ent->plt.refcount -= 1;
25dbc73a
AM		 4240 }
4241 break;
ee05f2fe 4242
25dbc73a
AM		 4243 default:
4244 break;
4245 }
7fce784e 4246 }
7fce784e
AS		 4247 return TRUE;
4248}
25dbc73a
AM		 4249\f
4250/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7fce784e 4251
25dbc73a
AM		 4252asection *
4253ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 4254{
25dbc73a 4255 struct ppc_elf_link_hash_table *htab;
7fce784e 4256
25dbc73a 4257 htab = ppc_elf_hash_table (info);
4a3dc543 4258 if (htab->plt_type == PLT_NEW
d7128ce4
AM		 4259 && htab->plt != NULL
4260 && htab->plt->output_section != NULL)
4261 {
4262 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4263 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4264 }
4265
25dbc73a
AM		 4266 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4267 FALSE, FALSE, TRUE);
25dbc73a 4268 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS		 4269}
4270
25dbc73a
AM		 4271/* Run through all the TLS relocs looking for optimization
4272 opportunities. */
252b5132 4273
25dbc73a
AM		 4274bfd_boolean
4275ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4276 struct bfd_link_info *info)
252b5132 4277{
7fce784e 4278 bfd *ibfd;
25dbc73a
AM		 4279 asection *sec;
4280 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 4281 int pass;
252b5132 4282
1d483afe 4283 if (info->relocatable || !info->executable)
25dbc73a 4284 return TRUE;
252b5132 4285
7619e7c7 4286 htab = ppc_elf_hash_table (info);
b7fcf6f6
AM		 4287 /* Make two passes through the relocs. First time check that tls
4288 relocs involved in setting up a tls_get_addr call are indeed
4289 followed by such a call. If they are not, exclude them from
4290 the optimizations done on the second pass. */
4291 for (pass = 0; pass < 2; ++pass)
4292 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4293 {
4294 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 4295 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7619e7c7 4296
b7fcf6f6
AM		 4297 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4298 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4299 {
4300 Elf_Internal_Rela *relstart, *rel, *relend;
252b5132 4301
b7fcf6f6
AM		 4302 /* Read the relocations. */
4303 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4304 info->keep_memory);
4305 if (relstart == NULL)
4306 return FALSE;
7619e7c7 4307
b7fcf6f6
AM		 4308 relend = relstart + sec->reloc_count;
4309 for (rel = relstart; rel < relend; rel++)
4310 {
4311 enum elf_ppc_reloc_type r_type;
4312 unsigned long r_symndx;
4313 struct elf_link_hash_entry *h = NULL;
4314 char *tls_mask;
4315 char tls_set, tls_clear;
4316 bfd_boolean is_local;
4317 int expecting_tls_get_addr;
4318 bfd_signed_vma *got_count;
4319
4320 r_symndx = ELF32_R_SYM (rel->r_info);
4321 if (r_symndx >= symtab_hdr->sh_info)
4322 {
4323 struct elf_link_hash_entry **sym_hashes;
7fce784e 4324
b7fcf6f6
AM		 4325 sym_hashes = elf_sym_hashes (ibfd);
4326 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4327 while (h->root.type == bfd_link_hash_indirect
4328 || h->root.type == bfd_link_hash_warning)
4329 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4330 }
7619e7c7 4331
b7fcf6f6
AM		 4332 expecting_tls_get_addr = 0;
4333 is_local = FALSE;
4334 if (h == NULL
4335 || !h->def_dynamic)
4336 is_local = TRUE;
7619e7c7 4337
b7fcf6f6
AM		 4338 r_type = ELF32_R_TYPE (rel->r_info);
4339 switch (r_type)
4340 {
4341 case R_PPC_GOT_TLSLD16:
4342 case R_PPC_GOT_TLSLD16_LO:
4343 expecting_tls_get_addr = 1;
4344 /* Fall thru */
4345
4346 case R_PPC_GOT_TLSLD16_HI:
4347 case R_PPC_GOT_TLSLD16_HA:
4348 /* These relocs should never be against a symbol
4349 defined in a shared lib. Leave them alone if
4350 that turns out to be the case. */
4351 if (!is_local)
4352 continue;
4353
4354 /* LD -> LE */
4355 tls_set = 0;
4356 tls_clear = TLS_LD;
4357 break;
4358
4359 case R_PPC_GOT_TLSGD16:
4360 case R_PPC_GOT_TLSGD16_LO:
4361 expecting_tls_get_addr = 1;
4362 /* Fall thru */
4363
4364 case R_PPC_GOT_TLSGD16_HI:
4365 case R_PPC_GOT_TLSGD16_HA:
4366 if (is_local)
4367 /* GD -> LE */
4368 tls_set = 0;
4369 else
4370 /* GD -> IE */
4371 tls_set = TLS_TLS | TLS_TPRELGD;
4372 tls_clear = TLS_GD;
4373 break;
4374
4375 case R_PPC_GOT_TPREL16:
4376 case R_PPC_GOT_TPREL16_LO:
4377 case R_PPC_GOT_TPREL16_HI:
4378 case R_PPC_GOT_TPREL16_HA:
4379 if (is_local)
4380 {
4381 /* IE -> LE */
4382 tls_set = 0;
4383 tls_clear = TLS_TPREL;
4384 break;
4385 }
4386 else
4387 continue;
4388
4389 default:
25dbc73a 4390 continue;
b7fcf6f6 4391 }
25dbc73a 4392
b7fcf6f6
AM		 4393 if (pass == 0)
4394 {
4395 if (!expecting_tls_get_addr)
4396 continue;
25dbc73a 4397
b7fcf6f6
AM		 4398 if (rel + 1 < relend)
4399 {
4400 enum elf_ppc_reloc_type r_type2;
4401 unsigned long r_symndx2;
4402 struct elf_link_hash_entry *h2;
4403
4404 /* The next instruction should be a call to
4405 __tls_get_addr. Peek at the reloc to be sure. */
4406 r_type2 = ELF32_R_TYPE (rel[1].r_info);
4407 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
4408 if (r_symndx2 >= symtab_hdr->sh_info
4409 && (r_type2 == R_PPC_REL14
4410 || r_type2 == R_PPC_REL14_BRTAKEN
4411 || r_type2 == R_PPC_REL14_BRNTAKEN
4412 || r_type2 == R_PPC_REL24
4413 || r_type2 == R_PPC_PLTREL24))
4414 {
4415 struct elf_link_hash_entry **sym_hashes;
4416
4417 sym_hashes = elf_sym_hashes (ibfd);
4418 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
4419 while (h2->root.type == bfd_link_hash_indirect
4420 || h2->root.type == bfd_link_hash_warning)
4421 h2 = ((struct elf_link_hash_entry *)
4422 h2->root.u.i.link);
4423 if (h2 == htab->tls_get_addr)
4424 continue;
4425 }
4426 }
25dbc73a 4427
b7fcf6f6
AM		 4428 /* Uh oh, we didn't find the expected call. We
4429 could just mark this symbol to exclude it
4430 from tls optimization but it's safer to skip
4431 the entire section. */
4432 sec->has_tls_reloc = 0;
4433 break;
4434 }
25dbc73a 4435
b7fcf6f6
AM		 4436 if (h != NULL)
4437 {
4438 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4439 got_count = &h->got.refcount;
4440 }
4441 else
4442 {
4443 Elf_Internal_Sym *sym;
4444 bfd_signed_vma *lgot_refs;
4445 char *lgot_masks;
25dbc73a 4446
b7fcf6f6
AM		 4447 if (locsyms == NULL)
4448 {
4449 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4450 if (locsyms == NULL)
4451 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4452 symtab_hdr->sh_info,
4453 0, NULL, NULL, NULL);
4454 if (locsyms == NULL)
4455 {
4456 if (elf_section_data (sec)->relocs != relstart)
4457 free (relstart);
4458 return FALSE;
4459 }
4460 }
4461 sym = locsyms + r_symndx;
4462 lgot_refs = elf_local_got_refcounts (ibfd);
4463 if (lgot_refs == NULL)
4464 abort ();
4465 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4466 tls_mask = &lgot_masks[r_symndx];
4467 got_count = &lgot_refs[r_symndx];
4468 }
25dbc73a 4469
b7fcf6f6
AM		 4470 if (tls_set == 0)
4471 {
4472 /* We managed to get rid of a got entry. */
4473 if (*got_count > 0)
4474 *got_count -= 1;
4475 }
25dbc73a 4476
b7fcf6f6
AM		 4477 if (expecting_tls_get_addr)
4478 {
4479 struct plt_entry *ent;
25dbc73a 4480
b7fcf6f6
AM		 4481 ent = find_plt_ent (htab->tls_get_addr, NULL, 0);
4482 if (ent != NULL && ent->plt.refcount > 0)
4483 ent->plt.refcount -= 1;
4484 }
25dbc73a 4485
b7fcf6f6
AM		 4486 *tls_mask |= tls_set;
4487 *tls_mask &= ~tls_clear;
4488 }
25dbc73a 4489
b7fcf6f6
AM		 4490 if (elf_section_data (sec)->relocs != relstart)
4491 free (relstart);
4492 }
4493
4494 if (locsyms != NULL
4495 && (symtab_hdr->contents != (unsigned char *) locsyms))
4496 {
4497 if (!info->keep_memory)
4498 free (locsyms);
4499 else
4500 symtab_hdr->contents = (unsigned char *) locsyms;
4501 }
4502 }
25dbc73a
AM		 4503 return TRUE;
4504}
4505\f
625af618
AM		 4506/* Return true if we have dynamic relocs that apply to read-only sections. */
4507
4508static bfd_boolean
4509readonly_dynrelocs (struct elf_link_hash_entry *h)
4510{
4511 struct ppc_elf_dyn_relocs *p;
4512
4513 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4514 {
4515 asection *s = p->sec->output_section;
4516
4517 if (s != NULL
4518 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4519 == (SEC_READONLY | SEC_ALLOC)))
4520 return TRUE;
4521 }
4522 return FALSE;
4523}
4524
25dbc73a
AM		 4525/* Adjust a symbol defined by a dynamic object and referenced by a
4526 regular object. The current definition is in some section of the
4527 dynamic object, but we're not including those sections. We have to
4528 change the definition to something the rest of the link can
4529 understand. */
7fce784e 4530
25dbc73a
AM		 4531static bfd_boolean
4532ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4533 struct elf_link_hash_entry *h)
4534{
4535 struct ppc_elf_link_hash_table *htab;
4536 asection *s;
7fce784e 4537
25dbc73a
AM		 4538#ifdef DEBUG
4539 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4540 h->root.root.string);
4541#endif
252b5132 4542
25dbc73a
AM		 4543 /* Make sure we know what is going on here. */
4544 htab = ppc_elf_hash_table (info);
4545 BFD_ASSERT (htab->elf.dynobj != NULL
4546 && (h->needs_plt
4547 || h->u.weakdef != NULL
4548 || (h->def_dynamic
4549 && h->ref_regular
4550 && !h->def_regular)));
252b5132 4551
25dbc73a
AM		 4552 /* Deal with function syms. */
4553 if (h->type == STT_FUNC
4554 || h->needs_plt)
4555 {
4556 /* Clear procedure linkage table information for any symbol that
4557 won't need a .plt entry. */
a6aa5195
AM		 4558 struct plt_entry *ent;
4559 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4560 if (ent->plt.refcount > 0)
4561 break;
4562 if (ent == NULL
25dbc73a
AM		 4563 || SYMBOL_CALLS_LOCAL (info, h)
4564 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4565 && h->root.type == bfd_link_hash_undefweak))
252b5132 4566 {
25dbc73a 4567 /* A PLT entry is not required/allowed when:
252b5132 4568
25dbc73a
AM		 4569 1. We are not using ld.so; because then the PLT entry
4570 can't be set up, so we can't use one. In this case,
4571 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4572
25dbc73a
AM		 4573 2. GC has rendered the entry unused.
4574
4575 3. We know for certain that a call to this symbol
4576 will go to this object, or will remain undefined. */
a6aa5195 4577 h->plt.plist = NULL;
25dbc73a
AM		 4578 h->needs_plt = 0;
4579 }
625af618
AM		 4580 else
4581 {
4582 /* After adjust_dynamic_symbol, non_got_ref set means that
4583 dyn_relocs for this symbol should be discarded.
4584 If we get here we know we are making a PLT entry for this
4585 symbol, and in an executable we'd normally resolve
4586 relocations against this symbol to the PLT entry. Allow
4587 dynamic relocs if the reference is weak, and the dynamic
4588 relocs will not cause text relocation. */
4589 if (!h->ref_regular_nonweak
4590 && h->non_got_ref
4591 && !htab->is_vxworks
4592 && !ppc_elf_hash_entry (h)->has_sda_refs
4593 && !readonly_dynrelocs (h))
4594 h->non_got_ref = 0;
4595 }
25dbc73a 4596 return TRUE;
252b5132 4597 }
25dbc73a 4598 else
a6aa5195 4599 h->plt.plist = NULL;
252b5132 4600
25dbc73a
AM		 4601 /* If this is a weak symbol, and there is a real definition, the
4602 processor independent code will have arranged for us to see the
4603 real definition first, and we can just use the same value. */
4604 if (h->u.weakdef != NULL)
252b5132 4605 {
25dbc73a
AM		 4606 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4607 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4608 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4609 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4610 if (ELIMINATE_COPY_RELOCS)
4611 h->non_got_ref = h->u.weakdef->non_got_ref;
4612 return TRUE;
4613 }
dc810e39 4614
25dbc73a
AM		 4615 /* This is a reference to a symbol defined by a dynamic object which
4616 is not a function. */
252b5132 4617
25dbc73a
AM		 4618 /* If we are creating a shared library, we must presume that the
4619 only references to the symbol are via the global offset table.
4620 For such cases we need not do anything here; the relocations will
4621 be handled correctly by relocate_section. */
4622 if (info->shared)
4623 return TRUE;
252b5132 4624
25dbc73a
AM		 4625 /* If there are no references to this symbol that do not use the
4626 GOT, we don't need to generate a copy reloc. */
4627 if (!h->non_got_ref)
4628 return TRUE;
4629
cfd2c773
NS		 4630 /* If we didn't find any dynamic relocs in read-only sections, then
4631 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4632 We can't do this if there are any small data relocations. This
4633 doesn't work on VxWorks, where we can not have dynamic
4634 relocations (other than copy and jump slot relocations) in an
4635 executable. */
4dc4a9a5 4636 if (ELIMINATE_COPY_RELOCS
cfd2c773 4637 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM		 4638 && !htab->is_vxworks
4639 && !h->def_regular
4640 && !readonly_dynrelocs (h))
25dbc73a 4641 {
625af618
AM		 4642 h->non_got_ref = 0;
4643 return TRUE;
252b5132
RH		 4644 }
4645
909272ee
AM		 4646 if (h->size == 0)
4647 {
4648 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4649 h->root.root.string);
4650 return TRUE;
4651 }
4652
25dbc73a
AM		 4653 /* We must allocate the symbol in our .dynbss section, which will
4654 become part of the .bss section of the executable. There will be
4655 an entry for this symbol in the .dynsym section. The dynamic
4656 object will contain position independent code, so all references
4657 from the dynamic object to this symbol will go through the global
4658 offset table. The dynamic linker will use the .dynsym entry to
4659 determine the address it must put in the global offset table, so
4660 both the dynamic object and the regular object will refer to the
4661 same memory location for the variable.
4662
4dc4a9a5
DJ		 4663 Of course, if the symbol is referenced using SDAREL relocs, we
4664 must instead allocate it in .sbss. */
25dbc73a 4665
4dc4a9a5 4666 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4667 s = htab->dynsbss;
4668 else
4669 s = htab->dynbss;
4670 BFD_ASSERT (s != NULL);
4671
4672 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4673 copy the initial value out of the dynamic object and into the
4674 runtime process image. We need to remember the offset into the
4675 .rela.bss section we are going to use. */
4676 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4677 {
4678 asection *srel;
4679
4dc4a9a5 4680 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4681 srel = htab->relsbss;
4682 else
4683 srel = htab->relbss;
4684 BFD_ASSERT (srel != NULL);
4685 srel->size += sizeof (Elf32_External_Rela);
4686 h->needs_copy = 1;
4687 }
7619e7c7 4688
027297b7 4689 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM		 4690}
4691\f
ac39eb42
AM		 4692/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4693 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4694 specifying the addend on the plt relocation. For -fpic code, the sym
4695 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4696 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM		 4697
4698static bfd_boolean
4699add_stub_sym (struct plt_entry *ent,
4700 struct elf_link_hash_entry *h,
ac39eb42 4701 struct bfd_link_info *info)
0ba07910
AM		 4702{
4703 struct elf_link_hash_entry *sh;
4704 size_t len1, len2, len3;
4705 char *name;
ac39eb42
AM		 4706 const char *stub;
4707 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4708
4709 if (info->shared || info->pie)
4710 stub = ".plt_pic32.";
4711 else
4712 stub = ".plt_call32.";
0ba07910
AM		 4713
4714 len1 = strlen (h->root.root.string);
ac39eb42 4715 len2 = strlen (stub);
0ba07910
AM		 4716 len3 = 0;
4717 if (ent->sec)
4718 len3 = strlen (ent->sec->name);
ac39eb42 4719 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM		 4720 if (name == NULL)
4721 return FALSE;
4722 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4723 if (ent->sec)
4724 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM		 4725 memcpy (name + 8 + len3, stub, len2);
4726 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM		 4727 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4728 if (sh == NULL)
4729 return FALSE;
4730 if (sh->root.type == bfd_link_hash_new)
4731 {
4732 sh->root.type = bfd_link_hash_defined;
4733 sh->root.u.def.section = htab->glink;
4734 sh->root.u.def.value = ent->glink_offset;
4735 sh->ref_regular = 1;
4736 sh->def_regular = 1;
4737 sh->ref_regular_nonweak = 1;
4738 sh->forced_local = 1;
4739 sh->non_elf = 0;
4740 }
4741 return TRUE;
4742}
4743
3b36f7e6
AM		 4744/* Allocate NEED contiguous space in .got, and return the offset.
4745 Handles allocation of the got header when crossing 32k. */
4746
4747static bfd_vma
4748allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4749{
4750 bfd_vma where;
4a3dc543 4751 unsigned int max_before_header;
3b36f7e6 4752
4a3dc543 4753 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4754 {
4755 where = htab->got->size;
4756 htab->got->size += need;
4757 }
3b36f7e6
AM		 4758 else
4759 {
4a3dc543
RS		 4760 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4761 if (need <= htab->got_gap)
3b36f7e6 4762 {
4a3dc543
RS		 4763 where = max_before_header - htab->got_gap;
4764 htab->got_gap -= need;
4765 }
4766 else
4767 {
4768 if (htab->got->size + need > max_before_header
4769 && htab->got->size <= max_before_header)
4770 {
4771 htab->got_gap = max_before_header - htab->got->size;
4772 htab->got->size = max_before_header + htab->got_header_size;
4773 }
4774 where = htab->got->size;
4775 htab->got->size += need;
3b36f7e6 4776 }
3b36f7e6
AM		 4777 }
4778 return where;
4779}
4780
25dbc73a 4781/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 4782
b34976b6 4783static bfd_boolean
25dbc73a 4784allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 4785{
25dbc73a
AM		 4786 struct bfd_link_info *info = inf;
4787 struct ppc_elf_link_hash_entry *eh;
7619e7c7 4788 struct ppc_elf_link_hash_table *htab;
25dbc73a 4789 struct ppc_elf_dyn_relocs *p;
252b5132 4790
25dbc73a 4791 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4792 return TRUE;
252b5132 4793
25dbc73a
AM		 4794 if (h->root.type == bfd_link_hash_warning)
4795 /* When warning symbols are created, they **replace** the "real"
4796 entry in the hash table, thus we never get to see the real
4797 symbol in a hash traversal. So look at it now. */
4798 h = (struct elf_link_hash_entry *) h->root.u.i.link;
e47cd125 4799
7619e7c7 4800 htab = ppc_elf_hash_table (info);
a6aa5195 4801 if (htab->elf.dynamic_sections_created)
252b5132 4802 {
a6aa5195
AM		 4803 struct plt_entry *ent;
4804 bfd_boolean doneone = FALSE;
28e99bb6
AM		 4805 bfd_vma plt_offset = 0, glink_offset = 0;
4806
a6aa5195
AM		 4807 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4808 if (ent->plt.refcount > 0)
4809 {
4810 /* Make sure this symbol is output as a dynamic symbol. */
4811 if (h->dynindx == -1
4812 && !h->forced_local)
4813 {
4814 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4815 return FALSE;
4816 }
252b5132 4817
a6aa5195
AM		 4818 if (info->shared
4819 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4820 {
4821 asection *s = htab->plt;
7619e7c7 4822
4a3dc543 4823 if (htab->plt_type == PLT_NEW)
a6aa5195 4824 {
a6aa5195 4825 if (!doneone)
28e99bb6
AM		 4826 {
4827 plt_offset = s->size;
4828 s->size += 4;
4829 }
4830 ent->plt.offset = plt_offset;
d7128ce4 4831
a6aa5195 4832 s = htab->glink;
28e99bb6
AM		 4833 if (!doneone || info->shared || info->pie)
4834 {
4835 glink_offset = s->size;
4836 s->size += GLINK_ENTRY_SIZE;
4837 }
4838 if (!doneone
4839 && !info->shared
625af618 4840 && h->def_dynamic
a6aa5195
AM		 4841 && !h->def_regular)
4842 {
4843 h->root.u.def.section = s;
28e99bb6 4844 h->root.u.def.value = glink_offset;
a6aa5195 4845 }
28e99bb6 4846 ent->glink_offset = glink_offset;
0ba07910
AM		 4847
4848 if (htab->emit_stub_syms
ac39eb42 4849 && !add_stub_sym (ent, h, info))
0ba07910 4850 return FALSE;
a6aa5195
AM		 4851 }
4852 else
4853 {
a6aa5195
AM		 4854 if (!doneone)
4855 {
28e99bb6
AM		 4856 /* If this is the first .plt entry, make room
4857 for the special first entry. */
4858 if (s->size == 0)
9d8504b1 4859 s->size += htab->plt_initial_entry_size;
28e99bb6
AM		 4860
4861 /* The PowerPC PLT is actually composed of two
4862 parts, the first part is 2 words (for a load
4863 and a jump), and then there is a remaining
4864 word available at the end. */
9d8504b1
PB		 4865 plt_offset = (htab->plt_initial_entry_size
4866 + (htab->plt_slot_size
4867 * ((s->size
4868 - htab->plt_initial_entry_size)
4869 / htab->plt_entry_size)));
28e99bb6
AM		 4870
4871 /* If this symbol is not defined in a regular
4872 file, and we are not generating a shared
4873 library, then set the symbol to this location
4874 in the .plt. This is required to make
4875 function pointers compare as equal between
4876 the normal executable and the shared library. */
4877 if (! info->shared
625af618 4878 && h->def_dynamic
28e99bb6
AM		 4879 && !h->def_regular)
4880 {
4881 h->root.u.def.section = s;
4882 h->root.u.def.value = plt_offset;
4883 }
4884
9d8504b1
PB		 4885 /* Make room for this entry. */
4886 s->size += htab->plt_entry_size;
4887 /* After the 8192nd entry, room for two entries
4888 is allocated. */
4a3dc543 4889 if (htab->plt_type == PLT_OLD
9d8504b1
PB		 4890 && (s->size - htab->plt_initial_entry_size)
4891 / htab->plt_entry_size
4892 > PLT_NUM_SINGLE_ENTRIES)
4893 s->size += htab->plt_entry_size;
a6aa5195 4894 }
28e99bb6 4895 ent->plt.offset = plt_offset;
a6aa5195 4896 }
25dbc73a 4897
a6aa5195
AM		 4898 /* We also need to make an entry in the .rela.plt section. */
4899 if (!doneone)
4900 {
4901 htab->relplt->size += sizeof (Elf32_External_Rela);
9d8504b1 4902
4a3dc543 4903 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4904 {
4905 /* Allocate space for the unloaded relocations. */
4906 if (!info->shared)
4907 {
4908 if (ent->plt.offset
4909 == (bfd_vma) htab->plt_initial_entry_size)
4910 {
4911 htab->srelplt2->size
4912 += sizeof (Elf32_External_Rela)
4913 * VXWORKS_PLTRESOLVE_RELOCS;
4914 }
4915
4916 htab->srelplt2->size
4917 += sizeof (Elf32_External_Rela)
4918 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4919 }
4920
4921 /* Every PLT entry has an associated GOT entry in
4922 .got.plt. */
4923 htab->sgotplt->size += 4;
4924 }
a6aa5195
AM		 4925 doneone = TRUE;
4926 }
4927 }
4928 else
4929 ent->plt.offset = (bfd_vma) -1;
a6aa5195 4930 }
2ce859a1
AM		 4931 else
4932 ent->plt.offset = (bfd_vma) -1;
4933
4934 if (!doneone)
4935 {
4936 h->plt.plist = NULL;
4937 h->needs_plt = 0;
4938 }
25dbc73a
AM		 4939 }
4940 else
4941 {
a6aa5195 4942 h->plt.plist = NULL;
25dbc73a
AM		 4943 h->needs_plt = 0;
4944 }
4945
4946 eh = (struct ppc_elf_link_hash_entry *) h;
4947 if (eh->elf.got.refcount > 0)
4948 {
4949 /* Make sure this symbol is output as a dynamic symbol. */
4950 if (eh->elf.dynindx == -1
4951 && !eh->elf.forced_local)
4952 {
4953 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 4954 return FALSE;
25dbc73a 4955 }
252b5132 4956
25dbc73a
AM		 4957 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4958 && !eh->elf.def_dynamic)
b7fcf6f6
AM		 4959 {
4960 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4961 htab->tlsld_got.refcount += 1;
4962 eh->elf.got.offset = (bfd_vma) -1;
4963 }
25dbc73a
AM		 4964 else
4965 {
4966 bfd_boolean dyn;
3b36f7e6 4967 unsigned int need = 0;
25dbc73a 4968 if ((eh->tls_mask & TLS_TLS) != 0)
252b5132 4969 {
25dbc73a 4970 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6 4971 need += 8;
25dbc73a 4972 if ((eh->tls_mask & TLS_GD) != 0)
3b36f7e6 4973 need += 8;
25dbc73a 4974 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4975 need += 4;
25dbc73a 4976 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 4977 need += 4;
252b5132 4978 }
25dbc73a 4979 else
3b36f7e6
AM		 4980 need += 4;
4981 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM		 4982 dyn = htab->elf.dynamic_sections_created;
4983 if ((info->shared
4984 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4985 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4986 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 4987 {
3b36f7e6
AM		 4988 /* All the entries we allocated need relocs.
4989 Except LD only needs one. */
25dbc73a 4990 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6
AM		 4991 need -= 4;
4992 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 4993 }
25dbc73a
AM		 4994 }
4995 }
4996 else
4997 eh->elf.got.offset = (bfd_vma) -1;
252b5132 4998
25dbc73a
AM		 4999 if (eh->dyn_relocs == NULL)
5000 return TRUE;
252b5132 5001
25dbc73a
AM		 5002 /* In the shared -Bsymbolic case, discard space allocated for
5003 dynamic pc-relative relocs against symbols which turn out to be
5004 defined in regular objects. For the normal shared case, discard
5005 space for relocs that have become local due to symbol visibility
5006 changes. */
5007
5008 if (info->shared)
5009 {
5010 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5011 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM		 5012 generated via assembly. We want calls to protected symbols to
5013 resolve directly to the function rather than going via the plt.
5014 If people want function pointer comparisons to work as expected
5015 then they should avoid writing weird assembly. */
5016 if (SYMBOL_CALLS_LOCAL (info, h))
5017 {
5018 struct ppc_elf_dyn_relocs **pp;
5019
5020 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5021 {
25dbc73a
AM		 5022 p->count -= p->pc_count;
5023 p->pc_count = 0;
5024 if (p->count == 0)
5025 *pp = p->next;
5026 else
5027 pp = &p->next;
252b5132 5028 }
25dbc73a 5029 }
252b5132 5030
3348747a
NS		 5031 if (htab->is_vxworks)
5032 {
5033 struct ppc_elf_dyn_relocs **pp;
5034
5035 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5036 {
5037 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5038 *pp = p->next;
5039 else
5040 pp = &p->next;
5041 }
5042 }
5043
89200bf8
AM		 5044 /* Discard relocs on undefined symbols that must be local. */
5045 if (eh->dyn_relocs != NULL
5046 && h->root.type == bfd_link_hash_undefined
5047 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5048 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5049 eh->dyn_relocs = NULL;
5050
25dbc73a
AM		 5051 /* Also discard relocs on undefined weak syms with non-default
5052 visibility. */
cab87ef9
AM		 5053 if (eh->dyn_relocs != NULL
5054 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 5055 {
dfbb6ac9
AM		 5056 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5057 eh->dyn_relocs = NULL;
5058
5059 /* Make sure undefined weak symbols are output as a dynamic
5060 symbol in PIEs. */
5061 else if (h->dynindx == -1
5062 && !h->forced_local)
5063 {
5064 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5065 return FALSE;
5066 }
25dbc73a
AM		 5067 }
5068 }
5069 else if (ELIMINATE_COPY_RELOCS)
5070 {
5071 /* For the non-shared case, discard space for relocs against
5072 symbols which turn out to need copy relocs or are not
5073 dynamic. */
7619e7c7 5074
25dbc73a 5075 if (!h->non_got_ref
25dbc73a
AM		 5076 && !h->def_regular)
5077 {
5078 /* Make sure this symbol is output as a dynamic symbol.
5079 Undefined weak syms won't yet be marked as dynamic. */
5080 if (h->dynindx == -1
5081 && !h->forced_local)
5082 {
5083 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5084 return FALSE;
5085 }
7619e7c7 5086
25dbc73a
AM		 5087 /* If that succeeded, we know we'll be keeping all the
5088 relocs. */
5089 if (h->dynindx != -1)
5090 goto keep;
5091 }
252b5132 5092
25dbc73a 5093 eh->dyn_relocs = NULL;
252b5132 5094
25dbc73a
AM		 5095 keep: ;
5096 }
252b5132 5097
25dbc73a
AM		 5098 /* Finally, allocate space. */
5099 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5100 {
5101 asection *sreloc = elf_section_data (p->sec)->sreloc;
5102 sreloc->size += p->count * sizeof (Elf32_External_Rela);
5103 }
252b5132 5104
25dbc73a
AM		 5105 return TRUE;
5106}
7619e7c7 5107
625af618
AM		 5108/* Set DF_TEXTREL if we find any dynamic relocs that apply to
5109 read-only sections. */
7619e7c7 5110
25dbc73a 5111static bfd_boolean
625af618 5112maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 5113{
25dbc73a
AM		 5114 if (h->root.type == bfd_link_hash_indirect)
5115 return TRUE;
252b5132 5116
25dbc73a
AM		 5117 if (h->root.type == bfd_link_hash_warning)
5118 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5119
625af618 5120 if (readonly_dynrelocs (h))
25dbc73a 5121 {
625af618 5122 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 5123
625af618
AM		 5124 /* Not an error, just cut short the traversal. */
5125 return FALSE;
25dbc73a
AM		 5126 }
5127 return TRUE;
5128}
5129
5130/* Set the sizes of the dynamic sections. */
5131
5132static bfd_boolean
5133ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5134 struct bfd_link_info *info)
5135{
5136 struct ppc_elf_link_hash_table *htab;
5137 asection *s;
5138 bfd_boolean relocs;
5139 bfd *ibfd;
7fce784e 5140
252b5132 5141#ifdef DEBUG
25dbc73a 5142 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 5143#endif
252b5132 5144
25dbc73a
AM		 5145 htab = ppc_elf_hash_table (info);
5146 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 5147
25dbc73a
AM		 5148 if (elf_hash_table (info)->dynamic_sections_created)
5149 {
5150 /* Set the contents of the .interp section to the interpreter. */
5151 if (info->executable)
5152 {
5153 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
5154 BFD_ASSERT (s != NULL);
5155 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5156 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5157 }
5158 }
252b5132 5159
4a3dc543 5160 if (htab->plt_type == PLT_OLD)
d7128ce4 5161 htab->got_header_size = 16;
4a3dc543 5162 else if (htab->plt_type == PLT_NEW)
d7128ce4 5163 htab->got_header_size = 12;
252b5132 5164
25dbc73a
AM		 5165 /* Set up .got offsets for local syms, and space for local dynamic
5166 relocs. */
5167 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5168 {
5169 bfd_signed_vma *local_got;
5170 bfd_signed_vma *end_local_got;
5171 char *lgot_masks;
5172 bfd_size_type locsymcount;
5173 Elf_Internal_Shdr *symtab_hdr;
7fce784e 5174
0c8d6e5c 5175 if (!is_ppc_elf (ibfd))
25dbc73a 5176 continue;
7fce784e 5177
25dbc73a
AM		 5178 for (s = ibfd->sections; s != NULL; s = s->next)
5179 {
5180 struct ppc_elf_dyn_relocs *p;
252b5132 5181
25dbc73a
AM		 5182 for (p = ((struct ppc_elf_dyn_relocs *)
5183 elf_section_data (s)->local_dynrel);
5184 p != NULL;
5185 p = p->next)
5186 {
5187 if (!bfd_is_abs_section (p->sec)
5188 && bfd_is_abs_section (p->sec->output_section))
5189 {
5190 /* Input section has been discarded, either because
5191 it is a copy of a linkonce section or due to
5192 linker script /DISCARD/, so we'll be discarding
5193 the relocs too. */
7fce784e 5194 }
3348747a
NS		 5195 else if (htab->is_vxworks
5196 && strcmp (p->sec->output_section->name,
5197 ".tls_vars") == 0)
5198 {
5199 /* Relocations in vxworks .tls_vars sections are
5200 handled specially by the loader. */
5201 }
25dbc73a 5202 else if (p->count != 0)
7fce784e 5203 {
25dbc73a
AM		 5204 elf_section_data (p->sec)->sreloc->size
5205 += p->count * sizeof (Elf32_External_Rela);
5206 if ((p->sec->output_section->flags
5207 & (SEC_READONLY | SEC_ALLOC))
5208 == (SEC_READONLY | SEC_ALLOC))
5209 info->flags |= DF_TEXTREL;
7fce784e 5210 }
252b5132 5211 }
252b5132 5212 }
252b5132 5213
25dbc73a
AM		 5214 local_got = elf_local_got_refcounts (ibfd);
5215 if (!local_got)
5216 continue;
252b5132 5217
0ffa91dd 5218 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM		 5219 locsymcount = symtab_hdr->sh_info;
5220 end_local_got = local_got + locsymcount;
5221 lgot_masks = (char *) end_local_got;
25dbc73a
AM		 5222 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
5223 if (*local_got > 0)
5224 {
5225 if (*lgot_masks == (TLS_TLS | TLS_LD))
5226 {
5227 /* If just an LD reloc, we'll just use
5228 htab->tlsld_got.offset. */
3b36f7e6 5229 htab->tlsld_got.refcount += 1;
25dbc73a
AM		 5230 *local_got = (bfd_vma) -1;
5231 }
5232 else
5233 {
3b36f7e6 5234 unsigned int need = 0;
25dbc73a
AM		 5235 if ((*lgot_masks & TLS_TLS) != 0)
5236 {
5237 if ((*lgot_masks & TLS_GD) != 0)
3b36f7e6 5238 need += 8;
25dbc73a 5239 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 5240 need += 4;
25dbc73a 5241 if ((*lgot_masks & TLS_DTPREL) != 0)
3b36f7e6 5242 need += 4;
25dbc73a
AM		 5243 }
5244 else
3b36f7e6
AM		 5245 need += 4;
5246 *local_got = allocate_got (htab, need);
25dbc73a 5247 if (info->shared)
3b36f7e6
AM		 5248 htab->relgot->size += (need
5249 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM		 5250 }
5251 }
5252 else
5253 *local_got = (bfd_vma) -1;
5254 }
252b5132 5255
b7fcf6f6
AM		 5256 /* Allocate space for global sym dynamic relocs. */
5257 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
5258
3b36f7e6
AM		 5259 if (htab->tlsld_got.refcount > 0)
5260 {
5261 htab->tlsld_got.offset = allocate_got (htab, 8);
5262 if (info->shared)
5263 htab->relgot->size += sizeof (Elf32_External_Rela);
5264 }
5265 else
5266 htab->tlsld_got.offset = (bfd_vma) -1;
5267
4a3dc543 5268 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM		 5269 {
5270 unsigned int g_o_t = 32768;
5271
4d962050
AM		 5272 /* If we haven't allocated the header, do so now. When we get here,
5273 for old plt/got the got size will be 0 to 32764 (not allocated),
5274 or 32780 to 65536 (header allocated). For new plt/got, the
5275 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM		 5276 if (htab->got->size <= 32768)
5277 {
5278 g_o_t = htab->got->size;
4a3dc543 5279 if (htab->plt_type == PLT_OLD)
4d962050 5280 g_o_t += 4;
3b36f7e6
AM		 5281 htab->got->size += htab->got_header_size;
5282 }
3b36f7e6
AM		 5283
5284 htab->elf.hgot->root.u.def.value = g_o_t;
5285 }
5286
d7128ce4
AM		 5287 if (htab->glink != NULL && htab->glink->size != 0)
5288 {
5289 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM		 5290 /* Space for the branch table. */
5291 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
5292 /* Pad out to align the start of PLTresolve. */
5293 htab->glink->size += -htab->glink->size & 15;
d7128ce4 5294 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM		 5295
5296 if (htab->emit_stub_syms)
5297 {
5298 struct elf_link_hash_entry *sh;
5299 sh = elf_link_hash_lookup (&htab->elf, "__glink",
5300 TRUE, FALSE, FALSE);
5301 if (sh == NULL)
5302 return FALSE;
5303 if (sh->root.type == bfd_link_hash_new)
5304 {
5305 sh->root.type = bfd_link_hash_defined;
5306 sh->root.u.def.section = htab->glink;
5307 sh->root.u.def.value = htab->glink_pltresolve;
5308 sh->ref_regular = 1;
5309 sh->def_regular = 1;
5310 sh->ref_regular_nonweak = 1;
5311 sh->forced_local = 1;
5312 sh->non_elf = 0;
5313 }
5314 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5315 TRUE, FALSE, FALSE);
5316 if (sh == NULL)
5317 return FALSE;
5318 if (sh->root.type == bfd_link_hash_new)
5319 {
5320 sh->root.type = bfd_link_hash_defined;
5321 sh->root.u.def.section = htab->glink;
5322 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5323 sh->ref_regular = 1;
5324 sh->def_regular = 1;
5325 sh->ref_regular_nonweak = 1;
5326 sh->forced_local = 1;
5327 sh->non_elf = 0;
5328 }
5329 }
d7128ce4
AM		 5330 }
5331
25dbc73a
AM		 5332 /* We've now determined the sizes of the various dynamic sections.
5333 Allocate memory for them. */
5334 relocs = FALSE;
5335 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 5336 {
9d8504b1
PB		 5337 bfd_boolean strip_section = TRUE;
5338
25dbc73a
AM		 5339 if ((s->flags & SEC_LINKER_CREATED) == 0)
5340 continue;
252b5132 5341
25dbc73a 5342 if (s == htab->plt
d7128ce4 5343 || s == htab->glink
644285ef 5344 || s == htab->got
9d8504b1 5345 || s == htab->sgotplt
c456f082
AM		 5346 || s == htab->sbss
5347 || s == htab->dynbss
5348 || s == htab->dynsbss)
25dbc73a 5349 {
9d8504b1
PB		 5350 /* We'd like to strip these sections if they aren't needed, but if
5351 we've exported dynamic symbols from them we must leave them.
5352 It's too late to tell BFD to get rid of the symbols. */
7325306f 5353 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
9d8504b1 5354 strip_section = FALSE;
25dbc73a
AM		 5355 /* Strip this section if we don't need it; see the
5356 comment below. */
5357 }
c9a2f333
AM		 5358 else if (s == htab->sdata[0].section
5359 || s == htab->sdata[1].section)
25dbc73a 5360 {
c9a2f333 5361 /* Strip these too. */
25dbc73a 5362 }
0112cd26 5363 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
25dbc73a 5364 {
c456f082 5365 if (s->size != 0)
25dbc73a
AM		 5366 {
5367 /* Remember whether there are any relocation sections. */
5368 relocs = TRUE;
252b5132 5369
25dbc73a
AM		 5370 /* We use the reloc_count field as a counter if we need
5371 to copy relocs into the output file. */
5372 s->reloc_count = 0;
252b5132
RH		 5373 }
5374 }
25dbc73a
AM		 5375 else
5376 {
5377 /* It's not one of our sections, so don't allocate space. */
5378 continue;
5379 }
252b5132 5380
9d8504b1 5381 if (s->size == 0 && strip_section)
25dbc73a 5382 {
c456f082
AM		 5383 /* If we don't need this section, strip it from the
5384 output file. This is mostly to handle .rela.bss and
5385 .rela.plt. We must create both sections in
5386 create_dynamic_sections, because they must be created
5387 before the linker maps input sections to output
5388 sections. The linker does that before
5389 adjust_dynamic_symbol is called, and it is that
5390 function which decides whether anything needs to go
5391 into these sections. */
8423293d 5392 s->flags |= SEC_EXCLUDE;
25dbc73a
AM		 5393 continue;
5394 }
7fce784e 5395
d7128ce4 5396 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM		 5397 continue;
5398
25dbc73a
AM		 5399 /* Allocate memory for the section contents. */
5400 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5401 if (s->contents == NULL)
5402 return FALSE;
5403 }
252b5132 5404
25dbc73a 5405 if (htab->elf.dynamic_sections_created)
7619e7c7 5406 {
25dbc73a
AM		 5407 /* Add some entries to the .dynamic section. We fill in the
5408 values later, in ppc_elf_finish_dynamic_sections, but we
5409 must add the entries now so that we get the correct size for
5410 the .dynamic section. The DT_DEBUG entry is filled in by the
5411 dynamic linker and used by the debugger. */
5412#define add_dynamic_entry(TAG, VAL) \
5413 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 5414
25dbc73a 5415 if (info->executable)
7619e7c7 5416 {
25dbc73a
AM		 5417 if (!add_dynamic_entry (DT_DEBUG, 0))
5418 return FALSE;
7619e7c7
AM		 5419 }
5420
25dbc73a 5421 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 5422 {
25dbc73a
AM		 5423 if (!add_dynamic_entry (DT_PLTGOT, 0)
5424 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5425 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5426 || !add_dynamic_entry (DT_JMPREL, 0))
5427 return FALSE;
5428 }
7619e7c7 5429
d7128ce4
AM		 5430 if (htab->glink != NULL && htab->glink->size != 0)
5431 {
1fe44d79 5432 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4
AM		 5433 return FALSE;
5434 }
5435
25dbc73a
AM		 5436 if (relocs)
5437 {
5438 if (!add_dynamic_entry (DT_RELA, 0)
5439 || !add_dynamic_entry (DT_RELASZ, 0)
5440 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5441 return FALSE;
5442 }
7619e7c7 5443
25dbc73a
AM		 5444 /* If any dynamic relocs apply to a read-only section, then we
5445 need a DT_TEXTREL entry. */
5446 if ((info->flags & DF_TEXTREL) == 0)
625af618 5447 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 5448 info);
7619e7c7 5449
25dbc73a
AM		 5450 if ((info->flags & DF_TEXTREL) != 0)
5451 {
5452 if (!add_dynamic_entry (DT_TEXTREL, 0))
5453 return FALSE;
7619e7c7 5454 }
7a2b07ff
NS		 5455 if (htab->is_vxworks
5456 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
5457 return FALSE;
5458 }
25dbc73a
AM		 5459#undef add_dynamic_entry
5460
7619e7c7
AM		 5461 return TRUE;
5462}
0eb4a168
AM		 5463
5464/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
5465
5466static bfd_boolean
5467ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
5468{
5469 if (h->plt.plist != NULL
5470 && !h->def_regular
5471 && (!h->pointer_equality_needed
5472 || !h->ref_regular_nonweak))
5473 return FALSE;
5474
5475 return _bfd_elf_hash_symbol (h);
5476}
25dbc73a
AM		 5477\f
5478#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5479
5480static const int shared_stub_entry[] =
5481 {
5482 0x7c0802a6, /* mflr 0 */
5483 0x429f0005, /* bcl 20, 31, .Lxxx */
5484 0x7d6802a6, /* mflr 11 */
5485 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5486 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5487 0x7c0803a6, /* mtlr 0 */
5488 0x7d6903a6, /* mtctr 11 */
5489 0x4e800420, /* bctr */
5490 };
5491
5492static const int stub_entry[] =
5493 {
5494 0x3d600000, /* lis 11,xxx@ha */
5495 0x396b0000, /* addi 11,11,xxx@l */
5496 0x7d6903a6, /* mtctr 11 */
5497 0x4e800420, /* bctr */
5498 };
5499
5500static bfd_boolean
5501ppc_elf_relax_section (bfd *abfd,
5502 asection *isec,
5503 struct bfd_link_info *link_info,
5504 bfd_boolean *again)
5505{
5506 struct one_fixup
5507 {
5508 struct one_fixup *next;
5509 asection *tsec;
5510 bfd_vma toff;
5511 bfd_vma trampoff;
5512 };
7619e7c7 5513
25dbc73a
AM		 5514 Elf_Internal_Shdr *symtab_hdr;
5515 bfd_byte *contents = NULL;
5516 Elf_Internal_Sym *isymbuf = NULL;
5517 Elf_Internal_Rela *internal_relocs = NULL;
5518 Elf_Internal_Rela *irel, *irelend;
5519 struct one_fixup *fixups = NULL;
5520 bfd_boolean changed;
d7128ce4 5521 struct ppc_elf_link_hash_table *htab;
25dbc73a 5522 bfd_size_type trampoff;
a6aa5195 5523 asection *got2;
7619e7c7 5524
25dbc73a 5525 *again = FALSE;
7619e7c7 5526
c87b5a93
AM		 5527 /* Nothing to do if there are no relocations, and no need to do
5528 anything with non-alloc sections. */
5529 if ((isec->flags & SEC_ALLOC) == 0
5530 || (isec->flags & SEC_RELOC) == 0
5531 || isec->reloc_count == 0)
25dbc73a 5532 return TRUE;
7619e7c7 5533
25dbc73a
AM		 5534 trampoff = (isec->size + 3) & (bfd_vma) -4;
5535 /* Space for a branch around any trampolines. */
5536 trampoff += 4;
7619e7c7 5537
0ffa91dd 5538 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 5539
25dbc73a
AM		 5540 /* Get a copy of the native relocations. */
5541 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5542 link_info->keep_memory);
5543 if (internal_relocs == NULL)
5544 goto error_return;
7619e7c7 5545
d7128ce4 5546 htab = ppc_elf_hash_table (link_info);
a6aa5195 5547 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 5548
a6aa5195 5549 irelend = internal_relocs + isec->reloc_count;
25dbc73a 5550 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 5551 {
25dbc73a
AM		 5552 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5553 bfd_vma symaddr, reladdr, toff, roff;
5554 asection *tsec;
5555 struct one_fixup *f;
5556 size_t insn_offset = 0;
5557 bfd_vma max_branch_offset, val;
5558 bfd_byte *hit_addr;
5559 unsigned long t0;
5560 unsigned char sym_type;
7619e7c7 5561
25dbc73a
AM		 5562 switch (r_type)
5563 {
5564 case R_PPC_REL24:
5565 case R_PPC_LOCAL24PC:
5566 case R_PPC_PLTREL24:
5567 max_branch_offset = 1 << 25;
5568 break;
7619e7c7 5569
25dbc73a
AM		 5570 case R_PPC_REL14:
5571 case R_PPC_REL14_BRTAKEN:
5572 case R_PPC_REL14_BRNTAKEN:
5573 max_branch_offset = 1 << 15;
5574 break;
7619e7c7 5575
25dbc73a
AM		 5576 default:
5577 continue;
5578 }
7619e7c7 5579
25dbc73a
AM		 5580 /* Get the value of the symbol referred to by the reloc. */
5581 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5582 {
5583 /* A local symbol. */
5584 Elf_Internal_Sym *isym;
7fce784e 5585
25dbc73a
AM		 5586 /* Read this BFD's local symbols. */
5587 if (isymbuf == NULL)
5588 {
5589 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5590 if (isymbuf == NULL)
5591 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5592 symtab_hdr->sh_info, 0,
5593 NULL, NULL, NULL);
5594 if (isymbuf == 0)
5595 goto error_return;
5596 }
5597 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5598 if (isym->st_shndx == SHN_UNDEF)
5599 continue; /* We can't do anything with undefined symbols. */
5600 else if (isym->st_shndx == SHN_ABS)
5601 tsec = bfd_abs_section_ptr;
5602 else if (isym->st_shndx == SHN_COMMON)
5603 tsec = bfd_com_section_ptr;
5604 else
5605 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 5606
25dbc73a
AM		 5607 toff = isym->st_value;
5608 sym_type = ELF_ST_TYPE (isym->st_info);
5609 }
5610 else
5611 {
5612 /* Global symbol handling. */
5613 unsigned long indx;
5614 struct elf_link_hash_entry *h;
7619e7c7 5615
25dbc73a
AM		 5616 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5617 h = elf_sym_hashes (abfd)[indx];
7619e7c7 5618
25dbc73a
AM		 5619 while (h->root.type == bfd_link_hash_indirect
5620 || h->root.type == bfd_link_hash_warning)
5621 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5622
a6aa5195
AM		 5623 tsec = NULL;
5624 toff = 0;
25dbc73a 5625 if (r_type == R_PPC_PLTREL24
a6aa5195 5626 && htab->plt != NULL)
25dbc73a 5627 {
a6aa5195
AM		 5628 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5629
5630 if (ent != NULL)
d7128ce4 5631 {
4a3dc543 5632 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 5633 {
5634 tsec = htab->glink;
5635 toff = ent->glink_offset;
5636 }
5637 else
5638 {
5639 tsec = htab->plt;
5640 toff = ent->plt.offset;
5641 }
d7128ce4 5642 }
25dbc73a 5643 }
a6aa5195
AM		 5644 if (tsec != NULL)
5645 ;
25dbc73a
AM		 5646 else if (h->root.type == bfd_link_hash_defined
5647 || h->root.type == bfd_link_hash_defweak)
5648 {
5649 tsec = h->root.u.def.section;
5650 toff = h->root.u.def.value;
5651 }
5652 else
5653 continue;
7619e7c7 5654
25dbc73a
AM		 5655 sym_type = h->type;
5656 }
7619e7c7 5657
25dbc73a
AM		 5658 /* If the branch and target are in the same section, you have
5659 no hope of adding stubs. We'll error out later should the
5660 branch overflow. */
5661 if (tsec == isec)
5662 continue;
5663
5664 /* There probably isn't any reason to handle symbols in
5665 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5666 attribute for a code section, and we are only looking at
5667 branches. However, implement it correctly here as a
5668 reference for other target relax_section functions. */
5669 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5670 {
5671 /* At this stage in linking, no SEC_MERGE symbol has been
5672 adjusted, so all references to such symbols need to be
5673 passed through _bfd_merged_section_offset. (Later, in
5674 relocate_section, all SEC_MERGE symbols *except* for
5675 section symbols have been adjusted.)
5676
5677 gas may reduce relocations against symbols in SEC_MERGE
5678 sections to a relocation against the section symbol when
5679 the original addend was zero. When the reloc is against
5680 a section symbol we should include the addend in the
5681 offset passed to _bfd_merged_section_offset, since the
5682 location of interest is the original symbol. On the
5683 other hand, an access to "sym+addend" where "sym" is not
5684 a section symbol should not include the addend; Such an
5685 access is presumed to be an offset from "sym"; The
5686 location of interest is just "sym". */
5687 if (sym_type == STT_SECTION)
5688 toff += irel->r_addend;
7619e7c7 5689
25dbc73a
AM		 5690 toff = _bfd_merged_section_offset (abfd, &tsec,
5691 elf_section_data (tsec)->sec_info,
5692 toff);
7619e7c7 5693
25dbc73a
AM		 5694 if (sym_type != STT_SECTION)
5695 toff += irel->r_addend;
5696 }
a6aa5195
AM		 5697 /* PLTREL24 addends are special. */
5698 else if (r_type != R_PPC_PLTREL24)
25dbc73a 5699 toff += irel->r_addend;
7619e7c7 5700
7de713b9
AM		 5701 /* Attempted -shared link of non-pic code loses. */
5702 if (tsec->output_section == NULL)
5703 continue;
5704
25dbc73a 5705 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7619e7c7 5706
25dbc73a
AM		 5707 roff = irel->r_offset;
5708 reladdr = isec->output_section->vma + isec->output_offset + roff;
7619e7c7 5709
25dbc73a
AM		 5710 /* If the branch is in range, no need to do anything. */
5711 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5712 continue;
252b5132 5713
25dbc73a
AM		 5714 /* Look for an existing fixup to this address. */
5715 for (f = fixups; f ; f = f->next)
5716 if (f->tsec == tsec && f->toff == toff)
5717 break;
5718
5719 if (f == NULL)
7619e7c7 5720 {
25dbc73a
AM		 5721 size_t size;
5722 unsigned long stub_rtype;
252b5132 5723
25dbc73a
AM		 5724 val = trampoff - roff;
5725 if (val >= max_branch_offset)
5726 /* Oh dear, we can't reach a trampoline. Don't try to add
5727 one. We'll report an error later. */
5728 continue;
252b5132 5729
25dbc73a
AM		 5730 if (link_info->shared)
5731 {
5732 size = 4 * ARRAY_SIZE (shared_stub_entry);
5733 insn_offset = 12;
5734 stub_rtype = R_PPC_RELAX32PC;
5735 }
5736 else
5737 {
5738 size = 4 * ARRAY_SIZE (stub_entry);
5739 insn_offset = 0;
5740 stub_rtype = R_PPC_RELAX32;
5741 }
dc810e39 5742
25dbc73a
AM		 5743 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5744 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5745 abort ();
d7128ce4
AM		 5746 if (tsec == htab->plt
5747 || tsec == htab->glink)
25dbc73a 5748 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
252b5132 5749
25dbc73a
AM		 5750 /* Hijack the old relocation. Since we need two
5751 relocations for this use a "composite" reloc. */
5752 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5753 stub_rtype);
5754 irel->r_offset = trampoff + insn_offset;
252b5132 5755
25dbc73a
AM		 5756 /* Record the fixup so we don't do it again this section. */
5757 f = bfd_malloc (sizeof (*f));
5758 f->next = fixups;
5759 f->tsec = tsec;
5760 f->toff = toff;
5761 f->trampoff = trampoff;
5762 fixups = f;
252b5132 5763
25dbc73a
AM		 5764 trampoff += size;
5765 }
5766 else
5767 {
5768 val = f->trampoff - roff;
5769 if (val >= max_branch_offset)
5770 continue;
252b5132 5771
25dbc73a
AM		 5772 /* Nop out the reloc, since we're finalizing things here. */
5773 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5774 }
252b5132 5775
25dbc73a
AM		 5776 /* Get the section contents. */
5777 if (contents == NULL)
5778 {
5779 /* Get cached copy if it exists. */
5780 if (elf_section_data (isec)->this_hdr.contents != NULL)
5781 contents = elf_section_data (isec)->this_hdr.contents;
5782 else
5783 {
5784 /* Go get them off disk. */
5785 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5786 goto error_return;
5787 }
5788 }
252b5132 5789
25dbc73a
AM		 5790 /* Fix up the existing branch to hit the trampoline. */
5791 hit_addr = contents + roff;
5792 switch (r_type)
5793 {
5794 case R_PPC_REL24:
5795 case R_PPC_LOCAL24PC:
5796 case R_PPC_PLTREL24:
5797 t0 = bfd_get_32 (abfd, hit_addr);
5798 t0 &= ~0x3fffffc;
5799 t0 |= val & 0x3fffffc;
5800 bfd_put_32 (abfd, t0, hit_addr);
5801 break;
252b5132 5802
25dbc73a
AM		 5803 case R_PPC_REL14:
5804 case R_PPC_REL14_BRTAKEN:
5805 case R_PPC_REL14_BRNTAKEN:
5806 t0 = bfd_get_32 (abfd, hit_addr);
5807 t0 &= ~0xfffc;
5808 t0 |= val & 0xfffc;
5809 bfd_put_32 (abfd, t0, hit_addr);
5810 break;
5811 }
5812 }
252b5132 5813
25dbc73a
AM		 5814 /* Write out the trampolines. */
5815 changed = fixups != NULL;
5816 if (fixups != NULL)
5817 {
5818 const int *stub;
5819 bfd_byte *dest;
5820 bfd_vma val;
5821 int i, size;
252b5132 5822
25dbc73a
AM		 5823 do
5824 {
5825 struct one_fixup *f = fixups;
5826 fixups = fixups->next;
5827 free (f);
5828 }
5829 while (fixups);
252b5132 5830
515ef31d 5831 contents = bfd_realloc_or_free (contents, trampoff);
25dbc73a
AM		 5832 if (contents == NULL)
5833 goto error_return;
252b5132 5834
25dbc73a
AM		 5835 isec->size = (isec->size + 3) & (bfd_vma) -4;
5836 /* Branch around the trampolines. */
5837 val = trampoff - isec->size + 0x48000000;
5838 dest = contents + isec->size;
5839 isec->size = trampoff;
5840 bfd_put_32 (abfd, val, dest);
5841 dest += 4;
252b5132 5842
25dbc73a
AM		 5843 if (link_info->shared)
5844 {
5845 stub = shared_stub_entry;
5846 size = ARRAY_SIZE (shared_stub_entry);
5847 }
5848 else
5849 {
5850 stub = stub_entry;
5851 size = ARRAY_SIZE (stub_entry);
5852 }
252b5132 5853
25dbc73a
AM		 5854 i = 0;
5855 while (dest < contents + trampoff)
252b5132 5856 {
25dbc73a
AM		 5857 bfd_put_32 (abfd, stub[i], dest);
5858 i++;
5859 if (i == size)
5860 i = 0;
5861 dest += 4;
252b5132 5862 }
25dbc73a 5863 BFD_ASSERT (i == 0);
252b5132
RH		 5864 }
5865
25dbc73a
AM		 5866 if (isymbuf != NULL
5867 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 5868 {
25dbc73a
AM		 5869 if (! link_info->keep_memory)
5870 free (isymbuf);
252b5132 5871 else
25dbc73a
AM		 5872 {
5873 /* Cache the symbols for elf_link_input_bfd. */
5874 symtab_hdr->contents = (unsigned char *) isymbuf;
5875 }
252b5132
RH		 5876 }
5877
25dbc73a
AM		 5878 if (contents != NULL
5879 && elf_section_data (isec)->this_hdr.contents != contents)
5880 {
5881 if (!changed && !link_info->keep_memory)
5882 free (contents);
5883 else
5884 {
5885 /* Cache the section contents for elf_link_input_bfd. */
5886 elf_section_data (isec)->this_hdr.contents = contents;
5887 }
5888 }
252b5132 5889
25dbc73a
AM		 5890 if (elf_section_data (isec)->relocs != internal_relocs)
5891 {
5892 if (!changed)
5893 free (internal_relocs);
5894 else
5895 elf_section_data (isec)->relocs = internal_relocs;
5896 }
252b5132 5897
25dbc73a 5898 *again = changed;
b34976b6 5899 return TRUE;
25dbc73a
AM		 5900
5901 error_return:
5902 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5903 free (isymbuf);
5904 if (contents != NULL
5905 && elf_section_data (isec)->this_hdr.contents != contents)
5906 free (contents);
5907 if (internal_relocs != NULL
5908 && elf_section_data (isec)->relocs != internal_relocs)
5909 free (internal_relocs);
5910 return FALSE;
252b5132 5911}
252b5132 5912\f
8a696751
AM		 5913/* What to do when ld finds relocations against symbols defined in
5914 discarded sections. */
5915
5916static unsigned int
5917ppc_elf_action_discarded (asection *sec)
5918{
5919 if (strcmp (".fixup", sec->name) == 0)
5920 return 0;
5921
5922 if (strcmp (".got2", sec->name) == 0)
5923 return 0;
5924
5925 return _bfd_elf_default_action_discarded (sec);
5926}
c9a2f333 5927\f
25dbc73a 5928/* Fill in the address for a pointer generated in a linker section. */
252b5132 5929
25dbc73a 5930static bfd_vma
76750a2f 5931elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM		 5932 elf_linker_section_t *lsect,
5933 struct elf_link_hash_entry *h,
5934 bfd_vma relocation,
2bb04cf2 5935 const Elf_Internal_Rela *rel)
25dbc73a
AM		 5936{
5937 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 5938
25dbc73a 5939 BFD_ASSERT (lsect != NULL);
252b5132 5940
25dbc73a 5941 if (h != NULL)
252b5132 5942 {
25dbc73a
AM		 5943 /* Handle global symbol. */
5944 struct ppc_elf_link_hash_entry *eh;
252b5132 5945
25dbc73a 5946 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM		 5947 BFD_ASSERT (eh->elf.def_regular);
5948 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM		 5949 }
5950 else
5951 {
5952 /* Handle local symbol. */
5953 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 5954
0c8d6e5c 5955 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 5956 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM		 5957 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5958 }
252b5132 5959
76750a2f
AM		 5960 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5961 rel->r_addend,
5962 lsect);
5963 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 5964
76750a2f
AM		 5965 /* Offset will always be a multiple of four, so use the bottom bit
5966 as a "written" flag. */
5967 if ((linker_section_ptr->offset & 1) == 0)
5968 {
5969 bfd_put_32 (lsect->section->owner,
5970 relocation + linker_section_ptr->addend,
5971 lsect->section->contents + linker_section_ptr->offset);
5972 linker_section_ptr->offset += 1;
252b5132
RH		 5973 }
5974
25dbc73a 5975 relocation = (lsect->section->output_offset
76750a2f 5976 + linker_section_ptr->offset - 1
c9a2f333 5977 - 0x8000);
252b5132 5978
25dbc73a
AM		 5979#ifdef DEBUG
5980 fprintf (stderr,
5981 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5982 lsect->name, (long) relocation, (long) relocation);
5983#endif
252b5132 5984
25dbc73a
AM		 5985 /* Subtract out the addend, because it will get added back in by the normal
5986 processing. */
5987 return relocation - linker_section_ptr->addend;
252b5132 5988}
25dbc73a 5989
252b5132
RH		 5990/* The RELOCATE_SECTION function is called by the ELF backend linker
5991 to handle the relocations for a section.
5992
5993 The relocs are always passed as Rela structures; if the section
5994 actually uses Rel structures, the r_addend field will always be
5995 zero.
5996
5997 This function is responsible for adjust the section contents as
5998 necessary, and (if using Rela relocs and generating a
1049f94e 5999 relocatable output file) adjusting the reloc addend as
252b5132
RH		 6000 necessary.
6001
6002 This function does not have to worry about setting the reloc
6003 address or the reloc symbol index.
6004
6005 LOCAL_SYMS is a pointer to the swapped in local symbols.
6006
6007 LOCAL_SECTIONS is an array giving the section in the input file
6008 corresponding to the st_shndx field of each local symbol.
6009
6010 The global hash table entry for the global symbols can be found
6011 via elf_sym_hashes (input_bfd).
6012
1049f94e 6013 When generating relocatable output, this function must handle
252b5132
RH		 6014 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6015 going to be the section symbol corresponding to the output
6016 section, which means that the addend must be adjusted
6017 accordingly. */
6018
b34976b6 6019static bfd_boolean
55fd94b0
AM		 6020ppc_elf_relocate_section (bfd *output_bfd,
6021 struct bfd_link_info *info,
6022 bfd *input_bfd,
6023 asection *input_section,
6024 bfd_byte *contents,
6025 Elf_Internal_Rela *relocs,
6026 Elf_Internal_Sym *local_syms,
6027 asection **local_sections)
252b5132 6028{
7619e7c7
AM		 6029 Elf_Internal_Shdr *symtab_hdr;
6030 struct elf_link_hash_entry **sym_hashes;
6031 struct ppc_elf_link_hash_table *htab;
6032 Elf_Internal_Rela *rel;
6033 Elf_Internal_Rela *relend;
6034 Elf_Internal_Rela outrel;
6035 bfd_byte *loc;
a6aa5195 6036 asection *got2, *sreloc = NULL;
252b5132 6037 bfd_vma *local_got_offsets;
b34976b6 6038 bfd_boolean ret = TRUE;
4fe5ca5b 6039 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 6040 bfd_boolean is_vxworks_tls;
b34976b6 6041
252b5132 6042#ifdef DEBUG
d003868e
AM		 6043 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
6044 "%ld relocations%s",
6045 input_bfd, input_section,
6046 (long) input_section->reloc_count,
6047 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH		 6048#endif
6049
a6aa5195
AM		 6050 got2 = bfd_get_section_by_name (input_bfd, ".got2");
6051
e47cd125 6052 /* Initialize howto table if not already done. */
8da6118f 6053 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH		 6054 ppc_elf_howto_init ();
6055
7619e7c7 6056 htab = ppc_elf_hash_table (info);
252b5132 6057 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 6058 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 6059 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS		 6060 /* We have to handle relocations in vxworks .tls_vars sections
6061 specially, because the dynamic loader is 'weird'. */
6062 is_vxworks_tls = (htab->is_vxworks && info->shared
6063 && !strcmp (input_section->output_section->name,
6064 ".tls_vars"));
7619e7c7
AM		 6065 rel = relocs;
6066 relend = relocs + input_section->reloc_count;
252b5132
RH		 6067 for (; rel < relend; rel++)
6068 {
7619e7c7
AM		 6069 enum elf_ppc_reloc_type r_type;
6070 bfd_vma addend;
6071 bfd_reloc_status_type r;
6072 Elf_Internal_Sym *sym;
6073 asection *sec;
6074 struct elf_link_hash_entry *h;
6075 const char *sym_name;
252b5132
RH		 6076 reloc_howto_type *howto;
6077 unsigned long r_symndx;
6078 bfd_vma relocation;
7619e7c7 6079 bfd_vma branch_bit, insn, from;
7619e7c7
AM		 6080 bfd_boolean unresolved_reloc;
6081 bfd_boolean warned;
6082 unsigned int tls_type, tls_mask, tls_gd;
6083
55fd94b0
AM		 6084 r_type = ELF32_R_TYPE (rel->r_info);
6085 sym = NULL;
6086 sec = NULL;
6087 h = NULL;
7619e7c7
AM		 6088 unresolved_reloc = FALSE;
6089 warned = FALSE;
252b5132 6090 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 6091
252b5132
RH		 6092 if (r_symndx < symtab_hdr->sh_info)
6093 {
6094 sym = local_syms + r_symndx;
6095 sec = local_sections[r_symndx];
26c61ae5 6096 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 6097
8517fae7 6098 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH		 6099 }
6100 else
6101 {
b2a8e766
AM		 6102 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
6103 r_symndx, symtab_hdr, sym_hashes,
6104 h, sec, relocation,
6105 unresolved_reloc, warned);
9abc968f 6106
252b5132 6107 sym_name = h->root.root.string;
7619e7c7
AM		 6108 }
6109
ab96bf03
AM		 6110 if (sec != NULL && elf_discarded_section (sec))
6111 {
6112 /* For relocs against symbols from removed linkonce sections,
6113 or sections discarded by a linker script, we just want the
6114 section contents zeroed. Avoid any special processing. */
6115 howto = NULL;
6116 if (r_type < R_PPC_max)
6117 howto = ppc_elf_howto_table[r_type];
6118 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
6119 rel->r_info = 0;
6120 rel->r_addend = 0;
6121 continue;
6122 }
6123
6124 if (info->relocatable)
6125 {
6126 if (got2 != NULL
6127 && r_type == R_PPC_PLTREL24
6128 && rel->r_addend >= 32768)
6129 {
6130 /* R_PPC_PLTREL24 is rather special. If non-zero, the
6131 addend specifies the GOT pointer offset within .got2. */
6132 rel->r_addend += got2->output_offset;
6133 }
6134 continue;
6135 }
6136
7619e7c7
AM		 6137 /* TLS optimizations. Replace instruction sequences and relocs
6138 based on information we collected in tls_optimize. We edit
6139 RELOCS so that --emit-relocs will output something sensible
6140 for the final instruction stream. */
6141 tls_mask = 0;
6142 tls_gd = 0;
6143 if (IS_PPC_TLS_RELOC (r_type))
6144 {
6145 if (h != NULL)
6146 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
6147 else if (local_got_offsets != NULL)
6148 {
6149 char *lgot_masks;
6150 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
6151 tls_mask = lgot_masks[r_symndx];
6152 }
6153 }
6154
6155 /* Ensure reloc mapping code below stays sane. */
6156 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
6157 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
6158 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
6159 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
6160 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
6161 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
6162 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
6163 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
6164 abort ();
6165 switch (r_type)
6166 {
6167 default:
6168 break;
6169
6170 case R_PPC_GOT_TPREL16:
6171 case R_PPC_GOT_TPREL16_LO:
6172 if (tls_mask != 0
6173 && (tls_mask & TLS_TPREL) == 0)
6174 {
6175 bfd_vma insn;
4fe5ca5b 6176 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM		 6177 insn &= 31 << 21;
6178 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 6179 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM		 6180 r_type = R_PPC_TPREL16_HA;
6181 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6182 }
6183 break;
6184
6185 case R_PPC_TLS:
6186 if (tls_mask != 0
6187 && (tls_mask & TLS_TPREL) == 0)
6188 {
6189 bfd_vma insn, rtra;
6190 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6191 if ((insn & ((31 << 26) | (31 << 11)))
6192 == ((31 << 26) | (2 << 11)))
6193 rtra = insn & ((1 << 26) - (1 << 16));
6194 else if ((insn & ((31 << 26) | (31 << 16)))
6195 == ((31 << 26) | (2 << 16)))
6196 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
6197 else
6198 abort ();
6199 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
6200 /* add -> addi. */
6201 insn = 14 << 26;
6202 else if ((insn & (31 << 1)) == 23 << 1
6203 && ((insn & (31 << 6)) < 14 << 6
6204 || ((insn & (31 << 6)) >= 16 << 6
6205 && (insn & (31 << 6)) < 24 << 6)))
6206 /* load and store indexed -> dform. */
6207 insn = (32 | ((insn >> 6) & 31)) << 26;
6208 else if ((insn & (31 << 1)) == 21 << 1
6209 && (insn & (0x1a << 6)) == 0)
6210 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
6211 insn = (((58 | ((insn >> 6) & 4)) << 26)
6212 | ((insn >> 6) & 1));
6213 else if ((insn & (31 << 1)) == 21 << 1
6214 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
6215 /* lwax -> lwa. */
6216 insn = (58 << 26) | 2;
6217 else
6218 abort ();
6219 insn |= rtra;
6220 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6221 r_type = R_PPC_TPREL16_LO;
6222 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 6223
7619e7c7 6224 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM		 6225 PPC_TPREL16_LO which is at low-order half-word. */
6226 rel->r_offset += d_offset;
7619e7c7
AM		 6227 }
6228 break;
6229
6230 case R_PPC_GOT_TLSGD16_HI:
6231 case R_PPC_GOT_TLSGD16_HA:
6232 tls_gd = TLS_TPRELGD;
6233 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
6234 goto tls_gdld_hi;
6235 break;
6236
6237 case R_PPC_GOT_TLSLD16_HI:
6238 case R_PPC_GOT_TLSLD16_HA:
6239 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
6240 {
6241 tls_gdld_hi:
6242 if ((tls_mask & tls_gd) != 0)
6243 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6244 + R_PPC_GOT_TPREL16);
6245 else
6246 {
6247 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 6248 rel->r_offset -= d_offset;
7619e7c7
AM		 6249 r_type = R_PPC_NONE;
6250 }
6251 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6252 }
6253 break;
6254
6255 case R_PPC_GOT_TLSGD16:
6256 case R_PPC_GOT_TLSGD16_LO:
6257 tls_gd = TLS_TPRELGD;
6258 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 6259 goto tls_ldgd_opt;
7619e7c7
AM		 6260 break;
6261
6262 case R_PPC_GOT_TLSLD16:
6263 case R_PPC_GOT_TLSLD16_LO:
6264 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
6265 {
b7fcf6f6
AM		 6266 bfd_vma insn1, insn2;
6267 bfd_vma offset;
7619e7c7 6268
b7fcf6f6
AM		 6269 tls_ldgd_opt:
6270 offset = rel[1].r_offset;
6271 insn1 = bfd_get_32 (output_bfd,
6272 contents + rel->r_offset - d_offset);
6273 if ((tls_mask & tls_gd) != 0)
6274 {
6275 /* IE */
6276 insn1 &= (1 << 26) - 1;
6277 insn1 |= 32 << 26; /* lwz */
6278 insn2 = 0x7c631214; /* add 3,3,2 */
6279 rel[1].r_info
6280 = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), R_PPC_NONE);
6281 rel[1].r_addend = 0;
6282 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6283 + R_PPC_GOT_TPREL16);
6284 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6285 }
6286 else
6287 {
6288 /* LE */
6289 insn1 = 0x3c620000; /* addis 3,2,0 */
6290 insn2 = 0x38630000; /* addi 3,3,0 */
7619e7c7
AM		 6291 if (tls_gd == 0)
6292 {
b7fcf6f6 6293 /* Was an LD reloc. */
1d483afe
AM		 6294 for (r_symndx = 0;
6295 r_symndx < symtab_hdr->sh_info;
6296 r_symndx++)
6297 if (local_sections[r_symndx] == sec)
6298 break;
6299 if (r_symndx >= symtab_hdr->sh_info)
6300 r_symndx = 0;
b7fcf6f6 6301 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
1d483afe
AM		 6302 if (r_symndx != 0)
6303 rel->r_addend -= (local_syms[r_symndx].st_value
6304 + sec->output_offset
6305 + sec->output_section->vma);
7619e7c7 6306 }
b7fcf6f6
AM		 6307 r_type = R_PPC_TPREL16_HA;
6308 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6309 rel[1].r_info = ELF32_R_INFO (r_symndx,
6310 R_PPC_TPREL16_LO);
6311 rel[1].r_offset += d_offset;
6312 rel[1].r_addend = rel->r_addend;
6313 }
6314 bfd_put_32 (output_bfd, insn1,
6315 contents + rel->r_offset - d_offset);
6316 bfd_put_32 (output_bfd, insn2, contents + offset);
6317 if (tls_gd == 0)
6318 {
6319 /* We changed the symbol on an LD reloc. Start over
6320 in order to get h, sym, sec etc. right. */
6321 rel--;
6322 continue;
7619e7c7 6323 }
252b5132 6324 }
7619e7c7
AM		 6325 break;
6326 }
6327
6328 /* Handle other relocations that tweak non-addend part of insn. */
6329 branch_bit = 0;
6330 switch (r_type)
6331 {
6332 default:
6333 break;
6334
6335 /* Branch taken prediction relocations. */
6336 case R_PPC_ADDR14_BRTAKEN:
6337 case R_PPC_REL14_BRTAKEN:
6338 branch_bit = BRANCH_PREDICT_BIT;
6339 /* Fall thru */
6340
4cc11e76 6341 /* Branch not taken prediction relocations. */
7619e7c7
AM		 6342 case R_PPC_ADDR14_BRNTAKEN:
6343 case R_PPC_REL14_BRNTAKEN:
6344 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6345 insn &= ~BRANCH_PREDICT_BIT;
6346 insn |= branch_bit;
6347
6348 from = (rel->r_offset
6349 + input_section->output_offset
6350 + input_section->output_section->vma);
6351
6352 /* Invert 'y' bit if not the default. */
6353 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
6354 insn ^= BRANCH_PREDICT_BIT;
6355
6356 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6357 break;
252b5132
RH		 6358 }
6359
7619e7c7
AM		 6360 addend = rel->r_addend;
6361 tls_type = 0;
6362 howto = NULL;
55fd94b0
AM		 6363 if (r_type < R_PPC_max)
6364 howto = ppc_elf_howto_table[r_type];
7619e7c7 6365 switch (r_type)
252b5132
RH		 6366 {
6367 default:
7619e7c7 6368 (*_bfd_error_handler)
d003868e
AM		 6369 (_("%B: unknown relocation type %d for symbol %s"),
6370 input_bfd, (int) r_type, sym_name);
252b5132
RH		 6371
6372 bfd_set_error (bfd_error_bad_value);
b34976b6 6373 ret = FALSE;
252b5132
RH		 6374 continue;
6375
7619e7c7
AM		 6376 case R_PPC_NONE:
6377 case R_PPC_TLS:
6378 case R_PPC_EMB_MRKREF:
6379 case R_PPC_GNU_VTINHERIT:
6380 case R_PPC_GNU_VTENTRY:
7595d193
L		 6381 continue;
6382
7619e7c7
AM		 6383 /* GOT16 relocations. Like an ADDR16 using the symbol's
6384 address in the GOT as relocation value instead of the
6385 symbol's value itself. Also, create a GOT entry for the
6386 symbol and put the symbol value there. */
6387 case R_PPC_GOT_TLSGD16:
6388 case R_PPC_GOT_TLSGD16_LO:
6389 case R_PPC_GOT_TLSGD16_HI:
6390 case R_PPC_GOT_TLSGD16_HA:
6391 tls_type = TLS_TLS | TLS_GD;
6392 goto dogot;
6393
6394 case R_PPC_GOT_TLSLD16:
6395 case R_PPC_GOT_TLSLD16_LO:
6396 case R_PPC_GOT_TLSLD16_HI:
6397 case R_PPC_GOT_TLSLD16_HA:
6398 tls_type = TLS_TLS | TLS_LD;
6399 goto dogot;
6400
6401 case R_PPC_GOT_TPREL16:
6402 case R_PPC_GOT_TPREL16_LO:
6403 case R_PPC_GOT_TPREL16_HI:
6404 case R_PPC_GOT_TPREL16_HA:
6405 tls_type = TLS_TLS | TLS_TPREL;
6406 goto dogot;
6407
6408 case R_PPC_GOT_DTPREL16:
6409 case R_PPC_GOT_DTPREL16_LO:
6410 case R_PPC_GOT_DTPREL16_HI:
6411 case R_PPC_GOT_DTPREL16_HA:
6412 tls_type = TLS_TLS | TLS_DTPREL;
6413 goto dogot;
6414
6415 case R_PPC_GOT16:
6416 case R_PPC_GOT16_LO:
6417 case R_PPC_GOT16_HI:
6418 case R_PPC_GOT16_HA:
6419 dogot:
6420 {
6421 /* Relocation is to the entry for this symbol in the global
6422 offset table. */
6423 bfd_vma off;
6424 bfd_vma *offp;
6425 unsigned long indx;
6426
6427 if (htab->got == NULL)
6428 abort ();
6429
6430 indx = 0;
6431 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 6432 && (h == NULL
f5385ebf 6433 || !h->def_dynamic))
7619e7c7
AM		 6434 offp = &htab->tlsld_got.offset;
6435 else if (h != NULL)
6436 {
6437 bfd_boolean dyn;
6438 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 6439 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM		 6440 || (info->shared
6441 && SYMBOL_REFERENCES_LOCAL (info, h)))
6442 /* This is actually a static link, or it is a
6443 -Bsymbolic link and the symbol is defined
6444 locally, or the symbol was forced to be local
6445 because of a version file. */
6446 ;
6447 else
6448 {
6449 indx = h->dynindx;
6450 unresolved_reloc = FALSE;
6451 }
6452 offp = &h->got.offset;
6453 }
6454 else
6455 {
6456 if (local_got_offsets == NULL)
6457 abort ();
6458 offp = &local_got_offsets[r_symndx];
6459 }
6460
6461 /* The offset must always be a multiple of 4. We use the
6462 least significant bit to record whether we have already
6463 processed this entry. */
6464 off = *offp;
6465 if ((off & 1) != 0)
6466 off &= ~1;
6467 else
6468 {
70bccea4
AM		 6469 unsigned int tls_m = (tls_mask
6470 & (TLS_LD | TLS_GD | TLS_DTPREL
6471 | TLS_TPREL | TLS_TPRELGD));
6472
6473 if (offp == &htab->tlsld_got.offset)
6474 tls_m = TLS_LD;
6475 else if (h == NULL
f5385ebf 6476 || !h->def_dynamic)
70bccea4
AM		 6477 tls_m &= ~TLS_LD;
6478
6479 /* We might have multiple got entries for this sym.
6480 Initialize them all. */
6481 do
7619e7c7 6482 {
70bccea4
AM		 6483 int tls_ty = 0;
6484
6485 if ((tls_m & TLS_LD) != 0)
7619e7c7 6486 {
70bccea4
AM		 6487 tls_ty = TLS_TLS | TLS_LD;
6488 tls_m &= ~TLS_LD;
6489 }
6490 else if ((tls_m & TLS_GD) != 0)
6491 {
6492 tls_ty = TLS_TLS | TLS_GD;
6493 tls_m &= ~TLS_GD;
6494 }
6495 else if ((tls_m & TLS_DTPREL) != 0)
6496 {
6497 tls_ty = TLS_TLS | TLS_DTPREL;
6498 tls_m &= ~TLS_DTPREL;
6499 }
6500 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6501 {
6502 tls_ty = TLS_TLS | TLS_TPREL;
6503 tls_m = 0;
7619e7c7 6504 }
7619e7c7 6505
70bccea4 6506 /* Generate relocs for the dynamic linker. */
4e795f50
AM		 6507 if ((info->shared || indx != 0)
6508 && (h == NULL
6509 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6510 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 6511 {
70bccea4
AM		 6512 outrel.r_offset = (htab->got->output_section->vma
6513 + htab->got->output_offset
6514 + off);
e515b051 6515 outrel.r_addend = 0;
70bccea4
AM		 6516 if (tls_ty & (TLS_LD | TLS_GD))
6517 {
6518 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM		 6519 if (tls_ty == (TLS_TLS | TLS_GD))
6520 {
6521 loc = htab->relgot->contents;
6522 loc += (htab->relgot->reloc_count++
6523 * sizeof (Elf32_External_Rela));
6524 bfd_elf32_swap_reloca_out (output_bfd,
6525 &outrel, loc);
e515b051 6526 outrel.r_offset += 4;
70bccea4
AM		 6527 outrel.r_info
6528 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM		 6529 }
6530 }
6531 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6532 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6533 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6534 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6535 else if (indx == 0)
6536 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6537 else
6538 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
70bccea4 6539 if (indx == 0)
e515b051
AM		 6540 {
6541 outrel.r_addend += relocation;
6542 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 6543 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 6544 }
70bccea4
AM		 6545 loc = htab->relgot->contents;
6546 loc += (htab->relgot->reloc_count++
6547 * sizeof (Elf32_External_Rela));
6548 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM		 6549 }
6550
70bccea4
AM		 6551 /* Init the .got section contents if we're not
6552 emitting a reloc. */
6553 else
7619e7c7 6554 {
70bccea4
AM		 6555 bfd_vma value = relocation;
6556
7b609f53
AM		 6557 if (tls_ty == (TLS_TLS | TLS_LD))
6558 value = 1;
6559 else if (tls_ty != 0)
70bccea4 6560 {
e1918d23 6561 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 6562 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 6563 value += DTP_OFFSET - TP_OFFSET;
70bccea4 6564
7b609f53
AM		 6565 if (tls_ty == (TLS_TLS | TLS_GD))
6566 {
6567 bfd_put_32 (output_bfd, value,
6568 htab->got->contents + off + 4);
6569 value = 1;
6570 }
70bccea4 6571 }
70bccea4
AM		 6572 bfd_put_32 (output_bfd, value,
6573 htab->got->contents + off);
7619e7c7 6574 }
70bccea4
AM		 6575
6576 off += 4;
6577 if (tls_ty & (TLS_LD | TLS_GD))
6578 off += 4;
7619e7c7 6579 }
70bccea4
AM		 6580 while (tls_m != 0);
6581
6582 off = *offp;
6583 *offp = off | 1;
7619e7c7
AM		 6584 }
6585
6586 if (off >= (bfd_vma) -2)
6587 abort ();
6588
70bccea4
AM		 6589 if ((tls_type & TLS_TLS) != 0)
6590 {
6591 if (tls_type != (TLS_TLS | TLS_LD))
6592 {
6593 if ((tls_mask & TLS_LD) != 0
6594 && !(h == NULL
f5385ebf 6595 || !h->def_dynamic))
70bccea4
AM		 6596 off += 8;
6597 if (tls_type != (TLS_TLS | TLS_GD))
6598 {
6599 if ((tls_mask & TLS_GD) != 0)
6600 off += 8;
6601 if (tls_type != (TLS_TLS | TLS_DTPREL))
6602 {
6603 if ((tls_mask & TLS_DTPREL) != 0)
6604 off += 4;
6605 }
6606 }
6607 }
6608 }
6609
3b36f7e6
AM		 6610 relocation = htab->got->output_offset + off;
6611 relocation -= htab->elf.hgot->root.u.def.value;
7619e7c7
AM		 6612
6613 /* Addends on got relocations don't make much sense.
6614 x+off@got is actually x@got+off, and since the got is
6615 generated by a hash table traversal, the value in the
6616 got at entry m+n bears little relation to the entry m. */
6617 if (addend != 0)
6618 (*_bfd_error_handler)
d003868e
AM		 6619 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6620 input_bfd,
6621 input_section,
7619e7c7 6622 (long) rel->r_offset,
7b609f53 6623 howto->name,
7619e7c7
AM		 6624 sym_name);
6625 }
70bccea4 6626 break;
7619e7c7 6627
252b5132 6628 /* Relocations that need no special processing. */
7619e7c7 6629 case R_PPC_LOCAL24PC:
252b5132
RH		 6630 /* It makes no sense to point a local relocation
6631 at a symbol not in this object. */
7b609f53 6632 if (unresolved_reloc)
252b5132 6633 {
464e1740
ILT		 6634 if (! (*info->callbacks->undefined_symbol) (info,
6635 h->root.root.string,
6636 input_bfd,
6637 input_section,
5cc7c785 6638 rel->r_offset,
b34976b6
AM		 6639 TRUE))
6640 return FALSE;
252b5132
RH		 6641 continue;
6642 }
6643 break;
6644
7619e7c7
AM		 6645 case R_PPC_DTPREL16:
6646 case R_PPC_DTPREL16_LO:
6647 case R_PPC_DTPREL16_HI:
6648 case R_PPC_DTPREL16_HA:
e1918d23 6649 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6650 break;
6651
70bccea4
AM		 6652 /* Relocations that may need to be propagated if this is a shared
6653 object. */
7619e7c7
AM		 6654 case R_PPC_TPREL16:
6655 case R_PPC_TPREL16_LO:
6656 case R_PPC_TPREL16_HI:
6657 case R_PPC_TPREL16_HA:
e1918d23 6658 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6659 /* The TPREL16 relocs shouldn't really be used in shared
6660 libs as they will result in DT_TEXTREL being set, but
6661 support them anyway. */
6662 goto dodyn;
6663
6664 case R_PPC_TPREL32:
e1918d23 6665 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6666 goto dodyn;
6667
6668 case R_PPC_DTPREL32:
e1918d23 6669 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6670 goto dodyn;
6671
e515b051
AM		 6672 case R_PPC_DTPMOD32:
6673 relocation = 1;
6674 addend = 0;
6675 goto dodyn;
6676
d7128ce4
AM		 6677 case R_PPC_REL16:
6678 case R_PPC_REL16_LO:
6679 case R_PPC_REL16_HI:
6680 case R_PPC_REL16_HA:
6681 break;
6682
7619e7c7 6683 case R_PPC_REL32:
625af618
AM		 6684 if (h == NULL || h == htab->elf.hgot)
6685 break;
6686 /* fall through */
6687
6688 case R_PPC_ADDR32:
6689 case R_PPC_ADDR16:
6690 case R_PPC_ADDR16_LO:
6691 case R_PPC_ADDR16_HI:
6692 case R_PPC_ADDR16_HA:
6693 case R_PPC_UADDR32:
6694 case R_PPC_UADDR16:
6695 goto dodyn;
6696
6697 case R_PPC_REL24:
7619e7c7
AM		 6698 case R_PPC_REL14:
6699 case R_PPC_REL14_BRTAKEN:
6700 case R_PPC_REL14_BRNTAKEN:
252b5132
RH		 6701 /* If these relocations are not to a named symbol, they can be
6702 handled right here, no need to bother the dynamic linker. */
89200bf8 6703 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 6704 || h == htab->elf.hgot)
252b5132 6705 break;
70bccea4 6706 /* fall through */
252b5132 6707
7619e7c7 6708 case R_PPC_ADDR24:
7619e7c7
AM		 6709 case R_PPC_ADDR14:
6710 case R_PPC_ADDR14_BRTAKEN:
6711 case R_PPC_ADDR14_BRNTAKEN:
625af618
AM		 6712 if (h != NULL && !info->shared)
6713 break;
6714 /* fall through */
6715
7619e7c7 6716 dodyn:
3348747a
NS		 6717 if ((input_section->flags & SEC_ALLOC) == 0
6718 || is_vxworks_tls)
c87b5a93 6719 break;
c87b5a93 6720
ee05f2fe 6721 if ((info->shared
89200bf8
AM		 6722 && !(h != NULL
6723 && ((h->root.type == bfd_link_hash_undefined
6724 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
6725 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
6726 || (h->root.type == bfd_link_hash_undefweak
6727 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 6728 && (must_be_dyn_reloc (info, r_type)
f6c52c13 6729 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM		 6730 || (ELIMINATE_COPY_RELOCS
6731 && !info->shared
ee05f2fe
AM		 6732 && h != NULL
6733 && h->dynindx != -1
f5385ebf 6734 && !h->non_got_ref
f5385ebf 6735 && !h->def_regular))
252b5132 6736 {
0bb2d96a 6737 int skip;
252b5132
RH		 6738
6739#ifdef DEBUG
55fd94b0
AM		 6740 fprintf (stderr, "ppc_elf_relocate_section needs to "
6741 "create relocation for %s\n",
70bccea4
AM		 6742 (h && h->root.root.string
6743 ? h->root.root.string : "<unknown>"));
252b5132
RH		 6744#endif
6745
6746 /* When generating a shared object, these relocations
70bccea4
AM		 6747 are copied into the output file to be resolved at run
6748 time. */
252b5132
RH		 6749 if (sreloc == NULL)
6750 {
6751 const char *name;
6752
6753 name = (bfd_elf_string_from_elf_section
6754 (input_bfd,
6755 elf_elfheader (input_bfd)->e_shstrndx,
6756 elf_section_data (input_section)->rel_hdr.sh_name));
6757 if (name == NULL)
b34976b6 6758 return FALSE;
252b5132 6759
0112cd26 6760 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
252b5132
RH		 6761 && strcmp (bfd_get_section_name (input_bfd,
6762 input_section),
6763 name + 5) == 0);
6764
7619e7c7 6765 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
252b5132
RH		 6766 BFD_ASSERT (sreloc != NULL);
6767 }
6768
0bb2d96a 6769 skip = 0;
c629eae0
JJ		 6770 outrel.r_offset =
6771 _bfd_elf_section_offset (output_bfd, info, input_section,
6772 rel->r_offset);
0bb2d96a
JJ		 6773 if (outrel.r_offset == (bfd_vma) -1
6774 || outrel.r_offset == (bfd_vma) -2)
6775 skip = (int) outrel.r_offset;
252b5132
RH		 6776 outrel.r_offset += (input_section->output_section->vma
6777 + input_section->output_offset);
6778
6779 if (skip)
6780 memset (&outrel, 0, sizeof outrel);
89200bf8
AM		 6781 else if ((h != NULL
6782 && (h->root.type == bfd_link_hash_undefined
6783 || h->root.type == bfd_link_hash_undefweak))
6784 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 6785 {
7619e7c7 6786 unresolved_reloc = FALSE;
252b5132
RH		 6787 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6788 outrel.r_addend = rel->r_addend;
6789 }
6790 else
6791 {
47388f4c
AM		 6792 outrel.r_addend = relocation + rel->r_addend;
6793
252b5132 6794 if (r_type == R_PPC_ADDR32)
47388f4c 6795 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH		 6796 else
6797 {
89200bf8 6798 long indx = 0;
252b5132 6799
1d483afe 6800 if (r_symndx == 0 || bfd_is_abs_section (sec))
89200bf8 6801 ;
252b5132
RH		 6802 else if (sec == NULL || sec->owner == NULL)
6803 {
6804 bfd_set_error (bfd_error_bad_value);
89200bf8 6805 ret = FALSE;
252b5132
RH		 6806 }
6807 else
6808 {
6809 asection *osec;
6810
47388f4c
AM		 6811 /* We are turning this relocation into one
6812 against a section symbol. It would be
6813 proper to subtract the symbol's value,
6814 osec->vma, from the emitted reloc addend,
6815 but ld.so expects buggy relocs. */
252b5132
RH		 6816 osec = sec->output_section;
6817 indx = elf_section_data (osec)->dynindx;
74541ad4
AM		 6818 if (indx == 0)
6819 {
6820 osec = htab->elf.text_index_section;
6821 indx = elf_section_data (osec)->dynindx;
6822 }
6823 BFD_ASSERT (indx != 0);
252b5132 6824#ifdef DEBUG
74541ad4 6825 if (indx == 0)
e460dd0d 6826 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM		 6827 indx, osec->name, osec->flags,
6828 h->root.root.string);
252b5132
RH		 6829#endif
6830 }
6831
6832 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH		 6833 }
6834 }
6835
947216bf
AM		 6836 loc = sreloc->contents;
6837 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6838 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 6839
2243deae 6840 if (skip == -1)
252b5132 6841 continue;
2243deae
L		 6842
6843 /* This reloc will be computed at runtime. We clear the memory
6844 so that it contains predictable value. */
6845 if (! skip
6846 && ((input_section->flags & SEC_ALLOC) != 0
6847 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6848 {
6849 relocation = howto->pc_relative ? outrel.r_offset : 0;
6850 addend = 0;
6851 break;
6852 }
252b5132 6853 }
252b5132
RH		 6854 break;
6855
b4a38de6
AM		 6856 case R_PPC_RELAX32PC_PLT:
6857 case R_PPC_RELAX32_PLT:
a6aa5195
AM		 6858 {
6859 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6860
4a3dc543 6861 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6862 relocation = (htab->glink->output_section->vma
6863 + htab->glink->output_offset
6864 + ent->glink_offset);
6865 else
6866 relocation = (htab->plt->output_section->vma
6867 + htab->plt->output_offset
6868 + ent->plt.offset);
6869 addend = 0;
6870 }
b4a38de6
AM		 6871 if (r_type == R_PPC_RELAX32_PLT)
6872 goto relax32;
6873 /* Fall thru */
6874
f31a141e
AM		 6875 case R_PPC_RELAX32PC:
6876 relocation -= (input_section->output_section->vma
6877 + input_section->output_offset
6878 + rel->r_offset - 4);
6879 /* Fall thru */
b4a38de6 6880
deaaf2f3 6881 case R_PPC_RELAX32:
b4a38de6 6882 relax32:
9abc968f
AM		 6883 {
6884 unsigned long t0;
6885 unsigned long t1;
6886
6887 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6888 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6889
6890 /* We're clearing the bits for R_PPC_ADDR16_HA
6891 and R_PPC_ADDR16_LO here. */
6892 t0 &= ~0xffff;
6893 t1 &= ~0xffff;
6894
6895 /* t0 is HA, t1 is LO */
6896 relocation += addend;
6897 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6898 t1 |= relocation & 0xffff;
6899
6900 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6901 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6902 }
8517fae7 6903 continue;
deaaf2f3 6904
70bccea4 6905 /* Indirect .sdata relocation. */
7619e7c7 6906 case R_PPC_EMB_SDAI16:
c9a2f333 6907 BFD_ASSERT (htab->sdata[0].section != NULL);
7619e7c7 6908 relocation
76750a2f
AM		 6909 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6910 h, relocation, rel);
252b5132
RH		 6911 break;
6912
70bccea4 6913 /* Indirect .sdata2 relocation. */
7619e7c7 6914 case R_PPC_EMB_SDA2I16:
c9a2f333 6915 BFD_ASSERT (htab->sdata[1].section != NULL);
7619e7c7 6916 relocation
76750a2f
AM		 6917 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6918 h, relocation, rel);
252b5132
RH		 6919 break;
6920
70bccea4
AM		 6921 /* Handle the TOC16 reloc. We want to use the offset within the .got
6922 section, not the actual VMA. This is appropriate when generating
6923 an embedded ELF object, for which the .got section acts like the
6924 AIX .toc section. */
7619e7c7 6925 case R_PPC_TOC16: /* phony GOT16 relocations */
55fd94b0 6926 BFD_ASSERT (sec != NULL);
252b5132
RH		 6927 BFD_ASSERT (bfd_is_und_section (sec)
6928 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 6929 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 6930
70bccea4 6931 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH		 6932 break;
6933
7619e7c7 6934 case R_PPC_PLTREL24:
252b5132 6935 /* Relocation is to the entry for this symbol in the
70bccea4 6936 procedure linkage table. */
a6aa5195
AM		 6937 {
6938 struct plt_entry *ent = find_plt_ent (h, got2, addend);
252b5132 6939
a6aa5195
AM		 6940 addend = 0;
6941 if (ent == NULL
6942 || htab->plt == NULL)
6943 {
6944 /* We didn't make a PLT entry for this symbol. This
6945 happens when statically linking PIC code, or when
6946 using -Bsymbolic. */
6947 break;
6948 }
252b5132 6949
a6aa5195 6950 unresolved_reloc = FALSE;
4a3dc543 6951 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6952 relocation = (htab->glink->output_section->vma
6953 + htab->glink->output_offset
6954 + ent->glink_offset);
6955 else
6956 relocation = (htab->plt->output_section->vma
6957 + htab->plt->output_offset
6958 + ent->plt.offset);
6959 }
8da6118f 6960 break;
252b5132 6961
70bccea4 6962 /* Relocate against _SDA_BASE_. */
7619e7c7 6963 case R_PPC_SDAREL16:
252b5132
RH		 6964 {
6965 const char *name;
046183de 6966 struct elf_link_hash_entry *sh;
252b5132 6967
55fd94b0 6968 BFD_ASSERT (sec != NULL);
252b5132 6969 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 6970 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 6971 && (name[6] == 0 || name[6] == '.'))
0112cd26 6972 || (CONST_STRNEQ (name, ".sbss")
5f819128 6973 && (name[5] == 0 || name[5] == '.'))))
252b5132 6974 {
55fd94b0 6975 (*_bfd_error_handler)
d003868e 6976 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6977 "in the wrong output section (%s)"),
d003868e 6978 input_bfd,
55fd94b0
AM		 6979 sym_name,
6980 howto->name,
6981 name);
252b5132 6982 }
046183de
AM		 6983 sh = htab->sdata[0].sym;
6984 addend -= (sh->root.u.def.value
6985 + sh->root.u.def.section->output_offset
6986 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6987 }
6988 break;
6989
70bccea4 6990 /* Relocate against _SDA2_BASE_. */
7619e7c7 6991 case R_PPC_EMB_SDA2REL:
252b5132
RH		 6992 {
6993 const char *name;
046183de 6994 struct elf_link_hash_entry *sh;
252b5132 6995
55fd94b0 6996 BFD_ASSERT (sec != NULL);
252b5132 6997 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26
NC		 6998 if (! (CONST_STRNEQ (name, ".sdata2")
6999 || CONST_STRNEQ (name, ".sbss2")))
252b5132 7000 {
55fd94b0 7001 (*_bfd_error_handler)
d003868e 7002 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 7003 "in the wrong output section (%s)"),
d003868e 7004 input_bfd,
55fd94b0
AM		 7005 sym_name,
7006 howto->name,
7007 name);
c3668558 7008
252b5132 7009 bfd_set_error (bfd_error_bad_value);
b34976b6 7010 ret = FALSE;
252b5132
RH		 7011 continue;
7012 }
046183de
AM		 7013 sh = htab->sdata[1].sym;
7014 addend -= (sh->root.u.def.value
7015 + sh->root.u.def.section->output_offset
7016 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 7017 }
7018 break;
7019
70bccea4 7020 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM		 7021 case R_PPC_EMB_SDA21:
7022 case R_PPC_EMB_RELSDA:
252b5132
RH		 7023 {
7024 const char *name;
7025 int reg;
046183de 7026 struct elf_link_hash_entry *sh;
252b5132 7027
55fd94b0 7028 BFD_ASSERT (sec != NULL);
252b5132 7029 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 7030 if (((CONST_STRNEQ (name, ".sdata")
5f819128 7031 && (name[6] == 0 || name[6] == '.'))
0112cd26 7032 || (CONST_STRNEQ (name, ".sbss")
5f819128 7033 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH		 7034 {
7035 reg = 13;
046183de
AM		 7036 sh = htab->sdata[0].sym;
7037 addend -= (sh->root.u.def.value
7038 + sh->root.u.def.section->output_offset
7039 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 7040 }
7041
0112cd26
NC		 7042 else if (CONST_STRNEQ (name, ".sdata2")
7043 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH		 7044 {
7045 reg = 2;
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
8da6118f
KH		 7052 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
7053 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH		 7054 {
7055 reg = 0;
7056 }
7057
7058 else
7059 {
55fd94b0 7060 (*_bfd_error_handler)
d003868e 7061 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 7062 "in the wrong output section (%s)"),
d003868e 7063 input_bfd,
55fd94b0
AM		 7064 sym_name,
7065 howto->name,
7066 name);
252b5132
RH		 7067
7068 bfd_set_error (bfd_error_bad_value);
b34976b6 7069 ret = FALSE;
252b5132
RH		 7070 continue;
7071 }
7072
7073 if (r_type == R_PPC_EMB_SDA21)
7074 { /* fill in register field */
7619e7c7 7075 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 7076 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 7077 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH		 7078 }
7079 }
7080 break;
7081
70bccea4 7082 /* Relocate against the beginning of the section. */
7619e7c7
AM		 7083 case R_PPC_SECTOFF:
7084 case R_PPC_SECTOFF_LO:
7085 case R_PPC_SECTOFF_HI:
7086 case R_PPC_SECTOFF_HA:
55fd94b0 7087 BFD_ASSERT (sec != NULL);
252b5132 7088 addend -= sec->output_section->vma;
252b5132
RH		 7089 break;
7090
70bccea4 7091 /* Negative relocations. */
7619e7c7
AM		 7092 case R_PPC_EMB_NADDR32:
7093 case R_PPC_EMB_NADDR16:
7094 case R_PPC_EMB_NADDR16_LO:
7095 case R_PPC_EMB_NADDR16_HI:
7096 case R_PPC_EMB_NADDR16_HA:
8da6118f 7097 addend -= 2 * relocation;
252b5132
RH		 7098 break;
7099
7619e7c7
AM		 7100 case R_PPC_COPY:
7101 case R_PPC_GLOB_DAT:
7102 case R_PPC_JMP_SLOT:
7103 case R_PPC_RELATIVE:
7104 case R_PPC_PLT32:
7105 case R_PPC_PLTREL32:
7106 case R_PPC_PLT16_LO:
7107 case R_PPC_PLT16_HI:
7108 case R_PPC_PLT16_HA:
7109 case R_PPC_ADDR30:
7110 case R_PPC_EMB_RELSEC16:
7111 case R_PPC_EMB_RELST_LO:
7112 case R_PPC_EMB_RELST_HI:
7113 case R_PPC_EMB_RELST_HA:
7114 case R_PPC_EMB_BIT_FLD:
7115 (*_bfd_error_handler)
d003868e
AM		 7116 (_("%B: relocation %s is not yet supported for symbol %s."),
7117 input_bfd,
7619e7c7
AM		 7118 howto->name,
7119 sym_name);
252b5132
RH		 7120
7121 bfd_set_error (bfd_error_invalid_operation);
b34976b6 7122 ret = FALSE;
252b5132 7123 continue;
7619e7c7 7124 }
252b5132 7125
7619e7c7
AM		 7126 /* Do any further special processing. */
7127 switch (r_type)
7128 {
7129 default:
7130 break;
7131
7132 case R_PPC_ADDR16_HA:
d7128ce4 7133 case R_PPC_REL16_HA:
7619e7c7
AM		 7134 case R_PPC_SECTOFF_HA:
7135 case R_PPC_TPREL16_HA:
7136 case R_PPC_DTPREL16_HA:
7619e7c7
AM		 7137 case R_PPC_EMB_NADDR16_HA:
7138 case R_PPC_EMB_RELST_HA:
7139 /* It's just possible that this symbol is a weak symbol
7b609f53 7140 that's not actually defined anywhere. In that case,
7619e7c7
AM		 7141 'sec' would be NULL, and we should leave the symbol
7142 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 7143 if (sec == NULL)
7144 break;
7145 /* Fall thru */
7146
7147 case R_PPC_PLT16_HA:
7148 case R_PPC_GOT16_HA:
7149 case R_PPC_GOT_TLSGD16_HA:
7150 case R_PPC_GOT_TLSLD16_HA:
7151 case R_PPC_GOT_TPREL16_HA:
7152 case R_PPC_GOT_DTPREL16_HA:
7153 /* Add 0x10000 if sign bit in 0:15 is set.
7154 Bits 0:15 are not used. */
7155 addend += 0x8000;
7619e7c7 7156 break;
252b5132
RH		 7157 }
7158
252b5132 7159#ifdef DEBUG
55fd94b0
AM		 7160 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
7161 "offset = %ld, addend = %ld\n",
252b5132 7162 howto->name,
8da6118f 7163 (int) r_type,
252b5132
RH		 7164 sym_name,
7165 r_symndx,
7619e7c7 7166 (long) rel->r_offset,
8da6118f 7167 (long) addend);
252b5132
RH		 7168#endif
7169
7619e7c7
AM		 7170 if (unresolved_reloc
7171 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 7172 && h->def_dynamic))
7619e7c7
AM		 7173 {
7174 (*_bfd_error_handler)
d003868e
AM		 7175 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
7176 input_bfd,
7177 input_section,
7619e7c7 7178 (long) rel->r_offset,
7b609f53 7179 howto->name,
7619e7c7
AM		 7180 sym_name);
7181 ret = FALSE;
7182 }
7183
252b5132
RH		 7184 r = _bfd_final_link_relocate (howto,
7185 input_bfd,
7186 input_section,
7187 contents,
7619e7c7 7188 rel->r_offset,
252b5132
RH		 7189 relocation,
7190 addend);
7191
7619e7c7 7192 if (r != bfd_reloc_ok)
252b5132 7193 {
7619e7c7 7194 if (r == bfd_reloc_overflow)
252b5132 7195 {
7619e7c7
AM		 7196 if (warned)
7197 continue;
7198 if (h != NULL
7199 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH		 7200 && howto->pc_relative)
7201 {
7202 /* Assume this is a call protected by other code that
7203 detect the symbol is undefined. If this is the case,
7204 we can safely ignore the overflow. If not, the
7205 program is hosed anyway, and a little warning isn't
7206 going to help. */
252b5132 7207
dc1bc0c9
RH		 7208 continue;
7209 }
252b5132 7210
7619e7c7 7211 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 7212 (h ? &h->root : NULL),
7619e7c7
AM		 7213 sym_name,
7214 howto->name,
7215 rel->r_addend,
7216 input_bfd,
7217 input_section,
7218 rel->r_offset))
7219 return FALSE;
dc1bc0c9
RH		 7220 }
7221 else
7222 {
7619e7c7 7223 (*_bfd_error_handler)
d003868e
AM		 7224 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
7225 input_bfd, input_section,
7b609f53 7226 (long) rel->r_offset, howto->name, sym_name, (int) r);
7619e7c7 7227 ret = FALSE;
252b5132
RH		 7228 }
7229 }
7230 }
7231
252b5132
RH		 7232#ifdef DEBUG
7233 fprintf (stderr, "\n");
7234#endif
7235
7236 return ret;
7237}
252b5132 7238\f
a6aa5195
AM		 7239#define PPC_LO(v) ((v) & 0xffff)
7240#define PPC_HI(v) (((v) >> 16) & 0xffff)
7241#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7242
25dbc73a
AM		 7243/* Finish up dynamic symbol handling. We set the contents of various
7244 dynamic sections here. */
c5fccbec 7245
b34976b6 7246static bfd_boolean
25dbc73a
AM		 7247ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
7248 struct bfd_link_info *info,
7249 struct elf_link_hash_entry *h,
7250 Elf_Internal_Sym *sym)
e1a9cb8e 7251{
25dbc73a 7252 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM		 7253 struct plt_entry *ent;
7254 bfd_boolean doneone;
e1a9cb8e 7255
25dbc73a
AM		 7256#ifdef DEBUG
7257 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
7258 h->root.root.string);
7259#endif
e1a9cb8e 7260
25dbc73a
AM		 7261 htab = ppc_elf_hash_table (info);
7262 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 7263
a6aa5195
AM		 7264 doneone = FALSE;
7265 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7266 if (ent->plt.offset != (bfd_vma) -1)
7267 {
7268 if (!doneone)
7269 {
7270 Elf_Internal_Rela rela;
7271 bfd_byte *loc;
7272 bfd_vma reloc_index;
e1a9cb8e 7273
4a3dc543 7274 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 7275 reloc_index = ent->plt.offset / 4;
7276 else
7277 {
7278 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
7279 / htab->plt_slot_size);
7280 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 7281 && htab->plt_type == PLT_OLD)
9d8504b1
PB		 7282 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
7283 }
7284
a6aa5195
AM		 7285 /* This symbol has an entry in the procedure linkage table.
7286 Set it up. */
4a3dc543 7287 if (htab->plt_type == PLT_VXWORKS)
a6aa5195 7288 {
9d8504b1
PB		 7289 bfd_vma got_offset;
7290 const bfd_vma *plt_entry;
7291
7292 /* The first three entries in .got.plt are reserved. */
7293 got_offset = (reloc_index + 3) * 4;
7294
7295 /* Use the right PLT. */
7296 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
7297 : ppc_elf_vxworks_plt_entry;
7298
7299 /* Fill in the .plt on VxWorks. */
7300 if (info->shared)
7301 {
7302 bfd_vma got_offset_hi = (got_offset >> 16)
7303 + ((got_offset & 0x8000) >> 15);
7304
7305 bfd_put_32 (output_bfd,
7306 plt_entry[0] | (got_offset_hi & 0xffff),
7307 htab->plt->contents + ent->plt.offset + 0);
7308 bfd_put_32 (output_bfd,
7309 plt_entry[1] | (got_offset & 0xffff),
7310 htab->plt->contents + ent->plt.offset + 4);
7311 }
7312 else
7313 {
636ce3f5
AM		 7314 bfd_vma got_loc
7315 = (got_offset
7316 + htab->elf.hgot->root.u.def.value
7317 + htab->elf.hgot->root.u.def.section->output_offset
7318 + htab->elf.hgot->root.u.def.section->output_section->vma);
9d8504b1
PB		 7319 bfd_vma got_loc_hi = (got_loc >> 16)
7320 + ((got_loc & 0x8000) >> 15);
7321
7322 bfd_put_32 (output_bfd,
7323 plt_entry[0] | (got_loc_hi & 0xffff),
7324 htab->plt->contents + ent->plt.offset + 0);
7325 bfd_put_32 (output_bfd,
7326 plt_entry[1] | (got_loc & 0xffff),
7327 htab->plt->contents + ent->plt.offset + 4);
7328 }
7329
7330 bfd_put_32 (output_bfd, plt_entry[2],
7331 htab->plt->contents + ent->plt.offset + 8);
7332 bfd_put_32 (output_bfd, plt_entry[3],
7333 htab->plt->contents + ent->plt.offset + 12);
7334
7335 /* This instruction is an immediate load. The value loaded is
7336 the byte offset of the R_PPC_JMP_SLOT relocation from the
7337 start of the .rela.plt section. The value is stored in the
7338 low-order 16 bits of the load instruction. */
7339 /* NOTE: It appears that this is now an index rather than a
7340 prescaled offset. */
7341 bfd_put_32 (output_bfd,
7342 plt_entry[4] | reloc_index,
7343 htab->plt->contents + ent->plt.offset + 16);
7344 /* This instruction is a PC-relative branch whose target is
7345 the start of the PLT section. The address of this branch
7346 instruction is 20 bytes beyond the start of this PLT entry.
7347 The address is encoded in bits 6-29, inclusive. The value
7348 stored is right-shifted by two bits, permitting a 26-bit
7349 offset. */
7350 bfd_put_32 (output_bfd,
7351 (plt_entry[5]
7352 | (-(ent->plt.offset + 20) & 0x03fffffc)),
7353 htab->plt->contents + ent->plt.offset + 20);
7354 bfd_put_32 (output_bfd, plt_entry[6],
7355 htab->plt->contents + ent->plt.offset + 24);
7356 bfd_put_32 (output_bfd, plt_entry[7],
7357 htab->plt->contents + ent->plt.offset + 28);
7358
7359 /* Fill in the GOT entry corresponding to this PLT slot with
7360 the address immediately after the the "bctr" instruction
7361 in this PLT entry. */
7362 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
7363 + htab->plt->output_offset
7364 + ent->plt.offset + 16),
7365 htab->sgotplt->contents + got_offset);
7366
7367 if (!info->shared)
7368 {
7369 /* Fill in a couple of entries in .rela.plt.unloaded. */
7370 loc = htab->srelplt2->contents
7371 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
7372 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
7373 * sizeof (Elf32_External_Rela));
7374
7375 /* Provide the @ha relocation for the first instruction. */
7376 rela.r_offset = (htab->plt->output_section->vma
7377 + htab->plt->output_offset
7378 + ent->plt.offset + 2);
636ce3f5 7379 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7380 R_PPC_ADDR16_HA);
7381 rela.r_addend = got_offset;
7382 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7383 loc += sizeof (Elf32_External_Rela);
7384
7385 /* Provide the @l relocation for the second instruction. */
7386 rela.r_offset = (htab->plt->output_section->vma
7387 + htab->plt->output_offset
7388 + ent->plt.offset + 6);
636ce3f5 7389 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7390 R_PPC_ADDR16_LO);
7391 rela.r_addend = got_offset;
7392 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7393 loc += sizeof (Elf32_External_Rela);
7394
7395 /* Provide a relocation for the GOT entry corresponding to this
7396 PLT slot. Point it at the middle of the .plt entry. */
7397 rela.r_offset = (htab->sgotplt->output_section->vma
7398 + htab->sgotplt->output_offset
7399 + got_offset);
7325306f 7400 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB		 7401 R_PPC_ADDR32);
7402 rela.r_addend = ent->plt.offset + 16;
7403 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7404 }
7405
7406 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7407 In particular, the offset for the relocation is not the
7408 address of the PLT entry for this function, as specified
7409 by the ABI. Instead, the offset is set to the address of
7410 the GOT slot for this function. See EABI 4.4.4.1. */
7411 rela.r_offset = (htab->sgotplt->output_section->vma
7412 + htab->sgotplt->output_offset
7413 + got_offset);
7414
a6aa5195
AM		 7415 }
7416 else
7417 {
9d8504b1
PB		 7418 rela.r_offset = (htab->plt->output_section->vma
7419 + htab->plt->output_offset
7420 + ent->plt.offset);
4a3dc543 7421 if (htab->plt_type == PLT_OLD)
9d8504b1
PB		 7422 {
7423 /* We don't need to fill in the .plt. The ppc dynamic
7424 linker will fill it in. */
7425 }
7426 else
7427 {
7428 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7429 + htab->glink->output_section->vma
7430 + htab->glink->output_offset);
7431 bfd_put_32 (output_bfd, val,
7432 htab->plt->contents + ent->plt.offset);
7433 }
a6aa5195 7434 }
e1a9cb8e 7435
a6aa5195 7436 /* Fill in the entry in the .rela.plt section. */
a6aa5195
AM		 7437 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7438 rela.r_addend = 0;
e1a9cb8e 7439
a6aa5195
AM		 7440 loc = (htab->relplt->contents
7441 + reloc_index * sizeof (Elf32_External_Rela));
7442 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 7443
a6aa5195
AM		 7444 if (!h->def_regular)
7445 {
0eb4a168
AM		 7446 /* Mark the symbol as undefined, rather than as
7447 defined in the .plt section. Leave the value if
7448 there were any relocations where pointer equality
7449 matters (this is a clue for the dynamic linker, to
7450 make function pointer comparisons work between an
7451 application and shared library), otherwise set it
7452 to zero. */
a6aa5195 7453 sym->st_shndx = SHN_UNDEF;
0eb4a168 7454 if (!h->pointer_equality_needed)
a6aa5195 7455 sym->st_value = 0;
0eb4a168
AM		 7456 else if (!h->ref_regular_nonweak)
7457 {
625af618
AM		 7458 /* This breaks function pointer comparisons, but
7459 that is better than breaking tests for a NULL
0eb4a168 7460 function pointer. */
0eb4a168
AM		 7461 sym->st_value = 0;
7462 }
a6aa5195
AM		 7463 }
7464 doneone = TRUE;
7465 }
e1a9cb8e 7466
4a3dc543 7467 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 7468 {
7469 bfd_vma plt;
7470 unsigned char *p;
e1a9cb8e 7471
a6aa5195
AM		 7472 plt = (ent->plt.offset
7473 + htab->plt->output_section->vma
7474 + htab->plt->output_offset);
7475 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
e1a9cb8e 7476
a6aa5195
AM		 7477 if (info->shared || info->pie)
7478 {
7479 bfd_vma got = 0;
7480
7481 if (ent->addend >= 32768)
7482 got = (ent->addend
7483 + ent->sec->output_section->vma
7484 + ent->sec->output_offset);
7485 else if (htab->elf.hgot != NULL)
7486 got = (htab->elf.hgot->root.u.def.value
7487 + htab->elf.hgot->root.u.def.section->output_section->vma
7488 + htab->elf.hgot->root.u.def.section->output_offset);
7489
7490 plt -= got;
7491
7492 if (plt + 0x8000 < 0x10000)
7493 {
7494 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7495 p += 4;
7496 bfd_put_32 (output_bfd, MTCTR_11, p);
7497 p += 4;
7498 bfd_put_32 (output_bfd, BCTR, p);
7499 p += 4;
7500 bfd_put_32 (output_bfd, NOP, p);
7501 p += 4;
7502 }
7503 else
7504 {
7505 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7506 p += 4;
7507 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7508 p += 4;
7509 bfd_put_32 (output_bfd, MTCTR_11, p);
7510 p += 4;
7511 bfd_put_32 (output_bfd, BCTR, p);
7512 p += 4;
7513 }
7514 }
7515 else
7516 {
7517 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7518 p += 4;
7519 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7520 p += 4;
7521 bfd_put_32 (output_bfd, MTCTR_11, p);
7522 p += 4;
7523 bfd_put_32 (output_bfd, BCTR, p);
7524 p += 4;
28e99bb6
AM		 7525
7526 /* We only need one non-PIC glink stub. */
7527 break;
a6aa5195
AM		 7528 }
7529 }
7530 else
7531 break;
7532 }
e1a9cb8e 7533
25dbc73a
AM		 7534 if (h->needs_copy)
7535 {
7536 asection *s;
7537 Elf_Internal_Rela rela;
7538 bfd_byte *loc;
e1a9cb8e 7539
25dbc73a 7540 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 7541
25dbc73a
AM		 7542#ifdef DEBUG
7543 fprintf (stderr, ", copy");
7544#endif
e1a9cb8e 7545
25dbc73a 7546 BFD_ASSERT (h->dynindx != -1);
86bbe32f 7547
4dc4a9a5 7548 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 7549 s = htab->relsbss;
7550 else
7551 s = htab->relbss;
7552 BFD_ASSERT (s != NULL);
e1a9cb8e 7553
25dbc73a
AM		 7554 rela.r_offset = (h->root.u.def.value
7555 + h->root.u.def.section->output_section->vma
7556 + h->root.u.def.section->output_offset);
7557 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7558 rela.r_addend = 0;
7559 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7560 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7561 }
e1a9cb8e 7562
25dbc73a
AM		 7563#ifdef DEBUG
7564 fprintf (stderr, "\n");
7565#endif
e1a9cb8e 7566
25dbc73a 7567 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB		 7568 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7569 || (!htab->is_vxworks
7570 && (h == htab->elf.hgot
7571 || strcmp (h->root.root.string,
7572 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 7573 sym->st_shndx = SHN_ABS;
e1a9cb8e 7574
25dbc73a
AM		 7575 return TRUE;
7576}
7577\f
7578static enum elf_reloc_type_class
7579ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 7580{
25dbc73a
AM		 7581 switch (ELF32_R_TYPE (rela->r_info))
7582 {
7583 case R_PPC_RELATIVE:
7584 return reloc_class_relative;
7585 case R_PPC_REL24:
7586 case R_PPC_ADDR24:
7587 case R_PPC_JMP_SLOT:
7588 return reloc_class_plt;
7589 case R_PPC_COPY:
7590 return reloc_class_copy;
7591 default:
7592 return reloc_class_normal;
7593 }
e1a9cb8e 7594}
25dbc73a
AM		 7595\f
7596/* Finish up the dynamic sections. */
e1a9cb8e 7597
25dbc73a
AM		 7598static bfd_boolean
7599ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7600 struct bfd_link_info *info)
e1a9cb8e 7601{
25dbc73a 7602 asection *sdyn;
9d8504b1 7603 asection *splt;
25dbc73a 7604 struct ppc_elf_link_hash_table *htab;
1fe44d79 7605 bfd_vma got;
9d8504b1 7606 bfd * dynobj;
e1a9cb8e 7607
25dbc73a
AM		 7608#ifdef DEBUG
7609 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7610#endif
6b0817e5 7611
25dbc73a 7612 htab = ppc_elf_hash_table (info);
9d8504b1
PB		 7613 dynobj = elf_hash_table (info)->dynobj;
7614 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7615 if (htab->is_vxworks)
7616 splt = bfd_get_section_by_name (dynobj, ".plt");
7617 else
7618 splt = NULL;
e1a9cb8e 7619
1fe44d79
AM		 7620 got = 0;
7621 if (htab->elf.hgot != NULL)
7622 got = (htab->elf.hgot->root.u.def.value
7623 + htab->elf.hgot->root.u.def.section->output_section->vma
7624 + htab->elf.hgot->root.u.def.section->output_offset);
7625
25dbc73a 7626 if (htab->elf.dynamic_sections_created)
e1a9cb8e 7627 {
25dbc73a 7628 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 7629
25dbc73a 7630 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 7631
25dbc73a
AM		 7632 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7633 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7634 for (; dyncon < dynconend; dyncon++)
7635 {
7636 Elf_Internal_Dyn dyn;
7637 asection *s;
e1a9cb8e 7638
9d8504b1 7639 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 7640
25dbc73a
AM		 7641 switch (dyn.d_tag)
7642 {
7643 case DT_PLTGOT:
9d8504b1
PB		 7644 if (htab->is_vxworks)
7645 s = htab->sgotplt;
7646 else
7647 s = htab->plt;
25dbc73a
AM		 7648 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7649 break;
86bbe32f 7650
25dbc73a
AM		 7651 case DT_PLTRELSZ:
7652 dyn.d_un.d_val = htab->relplt->size;
7653 break;
e1a9cb8e 7654
25dbc73a
AM		 7655 case DT_JMPREL:
7656 s = htab->relplt;
7657 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7658 break;
2f89ff8d 7659
1fe44d79
AM		 7660 case DT_PPC_GOT:
7661 dyn.d_un.d_ptr = got;
d7128ce4
AM		 7662 break;
7663
9d8504b1
PB		 7664 case DT_RELASZ:
7665 if (htab->is_vxworks)
7666 {
7667 if (htab->relplt)
7668 dyn.d_un.d_ptr -= htab->relplt->size;
7669 break;
7670 }
7671 continue;
7672
25dbc73a 7673 default:
7a2b07ff
NS		 7674 if (htab->is_vxworks
7675 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
7676 break;
25dbc73a
AM		 7677 continue;
7678 }
4c45e5c9 7679
25dbc73a
AM		 7680 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7681 }
7682 }
4c45e5c9 7683
25dbc73a
AM		 7684 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7685 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
3b36f7e6 7686 if (htab->got != NULL)
25dbc73a 7687 {
3b36f7e6
AM		 7688 unsigned char *p = htab->got->contents;
7689 bfd_vma val;
2f89ff8d 7690
636ce3f5 7691 p += htab->elf.hgot->root.u.def.value;
4a3dc543 7692 if (htab->plt_type == PLT_OLD)
d7128ce4 7693 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
3b36f7e6
AM		 7694
7695 val = 0;
7696 if (sdyn != NULL)
7697 val = sdyn->output_section->vma + sdyn->output_offset;
7698 bfd_put_32 (output_bfd, val, p);
25dbc73a
AM		 7699
7700 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7701 }
7702
9d8504b1
PB		 7703 /* Fill in the first entry in the VxWorks procedure linkage table. */
7704 if (splt && splt->size > 0)
7705 {
7706 /* Use the right PLT. */
7707 static const bfd_vma *plt_entry = NULL;
7708 plt_entry = info->shared ?
7709 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7710
7711 if (!info->shared)
7712 {
7713 bfd_vma got_value =
636ce3f5
AM		 7714 (htab->elf.hgot->root.u.def.section->output_section->vma
7715 + htab->elf.hgot->root.u.def.section->output_offset
7716 + htab->elf.hgot->root.u.def.value);
9d8504b1
PB		 7717 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7718
7719 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7720 splt->contents + 0);
7721 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7722 splt->contents + 4);
7723 }
7724 else
7725 {
7726 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7727 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7728 }
7729 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7730 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7731 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7732 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7733 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7734 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7735
7736 if (! info->shared)
7737 {
7738 Elf_Internal_Rela rela;
7739 bfd_byte *loc;
7740
7741 loc = htab->srelplt2->contents;
7742
7743 /* Output the @ha relocation for the first instruction. */
7744 rela.r_offset = (htab->plt->output_section->vma
7745 + htab->plt->output_offset
7746 + 2);
636ce3f5 7747 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7748 rela.r_addend = 0;
7749 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7750 loc += sizeof (Elf32_External_Rela);
7751
7752 /* Output the @l relocation for the second instruction. */
7753 rela.r_offset = (htab->plt->output_section->vma
7754 + htab->plt->output_offset
7755 + 6);
636ce3f5 7756 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7757 rela.r_addend = 0;
7758 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7759 loc += sizeof (Elf32_External_Rela);
7760
7761 /* Fix up the remaining relocations. They may have the wrong
7762 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7763 in which symbols were output. */
7764 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7765 {
7766 Elf_Internal_Rela rel;
7767
7768 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7769 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7770 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7771 loc += sizeof (Elf32_External_Rela);
7772
7773 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7774 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7775 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7776 loc += sizeof (Elf32_External_Rela);
7777
7778 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 7779 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB		 7780 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7781 loc += sizeof (Elf32_External_Rela);
7782 }
7783 }
7784 }
7785
d7128ce4
AM		 7786 if (htab->glink != NULL && htab->glink->contents != NULL)
7787 {
7788 unsigned char *p;
7789 unsigned char *endp;
a6aa5195 7790 bfd_vma res0;
d7128ce4 7791 unsigned int i;
a6aa5195
AM		 7792
7793 /*
7794 * PIC glink code is the following:
7795 *
7796 * # ith PLT code stub.
7797 * addis 11,30,(plt+(i-1)*4-got)@ha
7798 * lwz 11,(plt+(i-1)*4-got)@l(11)
7799 * mtctr 11
7800 * bctr
7801 *
7802 * # A table of branches, one for each plt entry.
176a0d42 7803 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM		 7804 * # addresses, so (r11 - res_0) gives the plt index * 4.
7805 * res_0: b PLTresolve
7806 * res_1: b PLTresolve
7807 * .
7808 * # Some number of entries towards the end can be nops
7809 * res_n_m3: nop
7810 * res_n_m2: nop
7811 * res_n_m1:
7812 *
7813 * PLTresolve:
7814 * addis 11,11,(1f-res_0)@ha
7815 * mflr 0
7816 * bcl 20,31,1f
7817 * 1: addi 11,11,(1b-res_0)@l
7818 * mflr 12
7819 * mtlr 0
7820 * sub 11,11,12 # r11 = index * 4
7821 * addis 12,12,(got+4-1b)@ha
7822 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7823 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7824 * mtctr 0
7825 * add 0,11,11
7826 * add 11,0,11 # r11 = index * 12 = reloc offset.
7827 * bctr
7828 */
7829 static const unsigned int pic_plt_resolve[] =
7830 {
7831 ADDIS_11_11,
7832 MFLR_0,
7833 BCL_20_31,
7834 ADDI_11_11,
7835 MFLR_12,
7836 MTLR_0,
7837 SUB_11_11_12,
7838 ADDIS_12_12,
7839 LWZ_0_12,
7840 LWZ_12_12,
7841 MTCTR_0,
7842 ADD_0_11_11,
7843 ADD_11_0_11,
7844 BCTR,
7845 NOP,
7846 NOP
7847 };
7848
176a0d42
AM		 7849 /*
7850 * Non-PIC glink code is a little simpler.
7851 *
7852 * # ith PLT code stub.
7853 * lis 11,(plt+(i-1)*4)@ha
7854 * lwz 11,(plt+(i-1)*4)@l(11)
7855 * mtctr 11
7856 * bctr
7857 *
7858 * The branch table is the same, then comes
7859 *
7860 * PLTresolve:
7861 * lis 12,(got+4)@ha
7862 * addis 11,11,(-res_0)@ha
7863 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
7864 * addi 11,11,(-res_0)@l # r11 = index * 4
7865 * mtctr 0
7866 * add 0,11,11
7867 * lwz 12,(got+8)@l(12) # got[2] contains the map address
7868 * add 11,0,11 # r11 = index * 12 = reloc offset.
7869 * bctr
7870 */
d7128ce4
AM		 7871 static const unsigned int plt_resolve[] =
7872 {
a6aa5195
AM		 7873 LIS_12,
7874 ADDIS_11_11,
7875 LWZ_0_12,
7876 ADDI_11_11,
d7128ce4 7877 MTCTR_0,
7e8aeb9a 7878 ADD_0_11_11,
a6aa5195 7879 LWZ_12_12,
7e8aeb9a 7880 ADD_11_0_11,
d7128ce4
AM		 7881 BCTR,
7882 NOP,
7883 NOP,
a6aa5195
AM		 7884 NOP,
7885 NOP,
7886 NOP,
7887 NOP,
d7128ce4
AM		 7888 NOP
7889 };
7890
a6aa5195
AM		 7891 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7892 abort ();
7893 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM		 7894 abort ();
7895
a6aa5195 7896 /* Build the branch table, one for each plt entry (less one),
86b9da88 7897 and perhaps some padding. */
a6aa5195
AM		 7898 p = htab->glink->contents;
7899 p += htab->glink_pltresolve;
86b9da88
AM		 7900 endp = htab->glink->contents;
7901 endp += htab->glink->size - GLINK_PLTRESOLVE;
7902 while (p < endp - 8 * 4)
7903 {
7904 bfd_put_32 (output_bfd, B + endp - p, p);
7905 p += 4;
7906 }
7907 while (p < endp)
7908 {
7909 bfd_put_32 (output_bfd, NOP, p);
7910 p += 4;
7911 }
7912
7e8aeb9a 7913 res0 = (htab->glink_pltresolve
86b9da88
AM		 7914 + htab->glink->output_section->vma
7915 + htab->glink->output_offset);
7916
7917 /* Last comes the PLTresolve stub. */
7e8aeb9a
AM		 7918 if (info->shared || info->pie)
7919 {
a6aa5195 7920 bfd_vma bcl;
d7128ce4 7921
a6aa5195 7922 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 7923 {
a6aa5195 7924 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM		 7925 p += 4;
7926 }
a6aa5195
AM		 7927 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7928
7929 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7930 + htab->glink->output_section->vma
7931 + htab->glink->output_offset);
7932
7933 bfd_put_32 (output_bfd,
7934 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7935 bfd_put_32 (output_bfd,
7936 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7937 bfd_put_32 (output_bfd,
7938 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7939 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7940 {
7941 bfd_put_32 (output_bfd,
7942 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7943 bfd_put_32 (output_bfd,
7944 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7945 }
7946 else
7947 {
7948 bfd_put_32 (output_bfd,
7949 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7950 bfd_put_32 (output_bfd,
7951 LWZ_12_12 + 4, p + 9*4);
7952 }
7e8aeb9a
AM		 7953 }
7954 else
d7128ce4 7955 {
a6aa5195 7956 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM		 7957 {
7958 bfd_put_32 (output_bfd, plt_resolve[i], p);
7959 p += 4;
7960 }
a6aa5195
AM		 7961 p -= 4 * ARRAY_SIZE (plt_resolve);
7962
7963 bfd_put_32 (output_bfd,
7964 LIS_12 + PPC_HA (got + 4), p + 0*4);
7965 bfd_put_32 (output_bfd,
7966 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7967 bfd_put_32 (output_bfd,
7968 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7969 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7970 {
7971 bfd_put_32 (output_bfd,
7972 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7973 bfd_put_32 (output_bfd,
7974 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7975 }
7976 else
7977 {
7978 bfd_put_32 (output_bfd,
7979 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7980 bfd_put_32 (output_bfd,
7981 LWZ_12_12 + 4, p + 6*4);
7982 }
d7128ce4 7983 }
d7128ce4
AM		 7984 }
7985
25dbc73a
AM		 7986 return TRUE;
7987}
e1a9cb8e 7988\f
252b5132
RH		 7989#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7990#define TARGET_LITTLE_NAME "elf32-powerpcle"
7991#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7992#define TARGET_BIG_NAME "elf32-powerpc"
7993#define ELF_ARCH bfd_arch_powerpc
7994#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC		 7995#ifdef __QNXTARGET__
7996#define ELF_MAXPAGESIZE 0x1000
7997#else
252b5132 7998#define ELF_MAXPAGESIZE 0x10000
d0facd1b 7999#endif
b1342370 8000#define ELF_MINPAGESIZE 0x1000
24718e3b 8001#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH		 8002#define elf_info_to_howto ppc_elf_info_to_howto
8003
8004#ifdef EM_CYGNUS_POWERPC
8005#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8006#endif
8007
8008#ifdef EM_PPC_OLD
8009#define ELF_MACHINE_ALT2 EM_PPC_OLD
8010#endif
8011
8012#define elf_backend_plt_not_loaded 1
252b5132 8013#define elf_backend_can_gc_sections 1
51b64d56 8014#define elf_backend_can_refcount 1
b491616a 8015#define elf_backend_rela_normal 1
252b5132 8016
43c40ab2 8017#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 8018#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 8019#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 8020#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
157090f7 8021#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 8022#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 8023#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 8024#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 8025
feee612b 8026#define elf_backend_object_p ppc_elf_object_p
252b5132
RH		 8027#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
8028#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
8029#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
8030#define elf_backend_relocate_section ppc_elf_relocate_section
8031#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
8032#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 8033#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH		 8034#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
8035#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
8036#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 8037#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH		 8038#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
8039#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
8040#define elf_backend_fake_sections ppc_elf_fake_sections
8041#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ		 8042#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
8043#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 8044#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 8045#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM		 8046#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
8047#define elf_backend_final_write_processing ppc_elf_final_write_processing
8048#define elf_backend_write_section ppc_elf_write_section
551b43fd 8049#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 8050#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 8051#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 8052#define elf_backend_init_index_section _bfd_elf_init_1_index_section
252b5132
RH		 8053
8054#include "elf32-target.h"
9d8504b1
PB		 8055
8056/* VxWorks Target */
8057
8058#undef TARGET_LITTLE_SYM
8059#undef TARGET_LITTLE_NAME
8060
8061#undef TARGET_BIG_SYM
8062#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
8063#undef TARGET_BIG_NAME
8064#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
8065
d5e3d971
PB		 8066/* VxWorks uses the elf default section flags for .plt. */
8067static const struct bfd_elf_special_section *
8068ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 8069{
d5e3d971
PB		 8070 if (sec->name == NULL)
8071 return NULL;
8072
8073 if (strcmp (sec->name, ".plt") == 0)
8074 return _bfd_elf_get_sec_type_attr (abfd, sec);
8075
8076 return ppc_elf_get_sec_type_attr (abfd, sec);
8077}
9d8504b1
PB		 8078
8079/* Like ppc_elf_link_hash_table_create, but overrides
8080 appropriately for VxWorks. */
8081static struct bfd_link_hash_table *
8082ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
8083{
8084 struct bfd_link_hash_table *ret;
8085
8086 ret = ppc_elf_link_hash_table_create (abfd);
8087 if (ret)
8088 {
8089 struct ppc_elf_link_hash_table *htab
8090 = (struct ppc_elf_link_hash_table *)ret;
8091 htab->is_vxworks = 1;
4a3dc543 8092 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB		 8093 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
8094 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
8095 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
8096 }
8097 return ret;
8098}
8099
8100/* Tweak magic VxWorks symbols as they are loaded. */
8101static bfd_boolean
8102ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
8103 struct bfd_link_info *info,
8104 Elf_Internal_Sym *sym,
8105 const char **namep ATTRIBUTE_UNUSED,
8106 flagword *flagsp ATTRIBUTE_UNUSED,
8107 asection **secp,
8108 bfd_vma *valp)
8109{
8110 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
8111 valp))
8112 return FALSE;
8113
8114 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
8115}
8116
9d8504b1
PB		 8117static void
8118ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
8119{
8120 ppc_elf_final_write_processing(abfd, linker);
8121 elf_vxworks_final_write_processing(abfd, linker);
8122}
8123
8124/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
8125 define it. */
8126#undef elf_backend_want_plt_sym
8127#define elf_backend_want_plt_sym 1
8128#undef elf_backend_want_got_plt
8129#define elf_backend_want_got_plt 1
8130#undef elf_backend_got_symbol_offset
8131#define elf_backend_got_symbol_offset 0
8132#undef elf_backend_plt_not_loaded
8133#define elf_backend_plt_not_loaded 0
8134#undef elf_backend_plt_readonly
8135#define elf_backend_plt_readonly 1
8136#undef elf_backend_got_header_size
8137#define elf_backend_got_header_size 12
8138
468392fb
AM		 8139#undef bfd_elf32_get_synthetic_symtab
8140
9d8504b1
PB		 8141#undef bfd_elf32_bfd_link_hash_table_create
8142#define bfd_elf32_bfd_link_hash_table_create \
8143 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB		 8144#undef elf_backend_add_symbol_hook
8145#define elf_backend_add_symbol_hook \
8146 ppc_elf_vxworks_add_symbol_hook
8147#undef elf_backend_link_output_symbol_hook
8148#define elf_backend_link_output_symbol_hook \
9c72ff84 8149 elf_vxworks_link_output_symbol_hook
9d8504b1
PB		 8150#undef elf_backend_final_write_processing
8151#define elf_backend_final_write_processing \
8152 ppc_elf_vxworks_final_write_processing
d5e3d971
PB		 8153#undef elf_backend_get_sec_type_attr
8154#define elf_backend_get_sec_type_attr \
8155 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB		 8156#undef elf_backend_emit_relocs
8157#define elf_backend_emit_relocs \
8158 elf_vxworks_emit_relocs
8159
8160#undef elf32_bed
8161#define elf32_bed ppc_elf_vxworks_bed
8162
8163#include "elf32-target.h"
GDB Binutils - Deliverables
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