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PR ld/5692
[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
25dbc73a 1739/* Override the generic function because we store some extras. */
7619e7c7 1740
25dbc73a
AM		 1741static bfd_boolean
1742ppc_elf_mkobject (bfd *abfd)
1743{
0ffa91dd
NC		 1744 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
1745 PPC32_ELF_TDATA);
25dbc73a 1746}
7619e7c7 1747
25dbc73a
AM		 1748/* Fix bad default arch selected for a 32 bit input bfd when the
1749 default is 64 bit. */
7619e7c7 1750
25dbc73a
AM		 1751static bfd_boolean
1752ppc_elf_object_p (bfd *abfd)
1753{
1754 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1755 {
1756 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 1757
25dbc73a
AM		 1758 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1759 {
1760 /* Relies on arch after 64 bit default being 32 bit default. */
1761 abfd->arch_info = abfd->arch_info->next;
1762 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1763 }
1764 }
1765 return TRUE;
1766}
7619e7c7 1767
25dbc73a 1768/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 1769
25dbc73a
AM		 1770static bfd_boolean
1771ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1772{
1773 BFD_ASSERT (!elf_flags_init (abfd)
1774 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 1775
25dbc73a
AM		 1776 elf_elfheader (abfd)->e_flags = flags;
1777 elf_flags_init (abfd) = TRUE;
1778 return TRUE;
1779}
1780
25dbc73a 1781/* Support for core dump NOTE sections. */
deaaf2f3 1782
b34976b6 1783static bfd_boolean
25dbc73a 1784ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 1785{
25dbc73a
AM		 1786 int offset;
1787 unsigned int size;
252b5132 1788
25dbc73a
AM		 1789 switch (note->descsz)
1790 {
1791 default:
1792 return FALSE;
252b5132 1793
25dbc73a
AM		 1794 case 268: /* Linux/PPC. */
1795 /* pr_cursig */
1796 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 1797
25dbc73a
AM		 1798 /* pr_pid */
1799 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 1800
25dbc73a
AM		 1801 /* pr_reg */
1802 offset = 72;
1803 size = 192;
deaaf2f3 1804
25dbc73a
AM		 1805 break;
1806 }
deaaf2f3 1807
25dbc73a
AM		 1808 /* Make a ".reg/999" section. */
1809 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1810 size, note->descpos + offset);
1811}
252b5132 1812
25dbc73a
AM		 1813static bfd_boolean
1814ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1815{
1816 switch (note->descsz)
deaaf2f3 1817 {
25dbc73a
AM		 1818 default:
1819 return FALSE;
deaaf2f3 1820
25dbc73a
AM		 1821 case 128: /* Linux/PPC elf_prpsinfo. */
1822 elf_tdata (abfd)->core_program
1823 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1824 elf_tdata (abfd)->core_command
1825 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1826 }
9abc968f 1827
25dbc73a
AM		 1828 /* Note that for some reason, a spurious space is tacked
1829 onto the end of the args in some (at least one anyway)
1830 implementations, so strip it off if it exists. */
70bccea4 1831
25dbc73a
AM		 1832 {
1833 char *command = elf_tdata (abfd)->core_command;
1834 int n = strlen (command);
70bccea4 1835
25dbc73a
AM		 1836 if (0 < n && command[n - 1] == ' ')
1837 command[n - 1] = '\0';
1838 }
deaaf2f3 1839
25dbc73a
AM		 1840 return TRUE;
1841}
deaaf2f3 1842
183e98be
AM		 1843static char *
1844ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1845{
1846 switch (note_type)
1847 {
1848 default:
1849 return NULL;
1850
1851 case NT_PRPSINFO:
1852 {
1853 char data[128];
1854 va_list ap;
1855
1856 va_start (ap, note_type);
1857 memset (data, 0, 32);
1858 strncpy (data + 32, va_arg (ap, const char *), 16);
1859 strncpy (data + 48, va_arg (ap, const char *), 80);
1860 va_end (ap);
1861 return elfcore_write_note (abfd, buf, bufsiz,
1862 "CORE", note_type, data, sizeof (data));
1863 }
1864
1865 case NT_PRSTATUS:
1866 {
1867 char data[268];
1868 va_list ap;
1869 long pid;
1870 int cursig;
1871 const void *greg;
1872
1873 va_start (ap, note_type);
1874 memset (data, 0, 72);
1875 pid = va_arg (ap, long);
1876 bfd_put_32 (abfd, pid, data + 24);
1877 cursig = va_arg (ap, int);
1878 bfd_put_16 (abfd, cursig, data + 12);
1879 greg = va_arg (ap, const void *);
1880 memcpy (data + 72, greg, 192);
1881 memset (data + 264, 0, 4);
1882 va_end (ap);
1883 return elfcore_write_note (abfd, buf, bufsiz,
1884 "CORE", note_type, data, sizeof (data));
1885 }
1886 }
1887}
1888
25dbc73a
AM		 1889/* Return address for Ith PLT stub in section PLT, for relocation REL
1890 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 1891
25dbc73a
AM		 1892static bfd_vma
1893ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1894 const asection *plt ATTRIBUTE_UNUSED,
1895 const arelent *rel)
1896{
1897 return rel->address;
1898}
deaaf2f3 1899
25dbc73a 1900/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L		 1901 is called when bfd_section_from_shdr finds a section with an unknown
1902 type. */
deaaf2f3 1903
25dbc73a 1904static bfd_boolean
6dc132d9
L		 1905ppc_elf_section_from_shdr (bfd *abfd,
1906 Elf_Internal_Shdr *hdr,
1907 const char *name,
1908 int shindex)
25dbc73a
AM		 1909{
1910 asection *newsect;
1911 flagword flags;
d1c6de6f 1912
6dc132d9 1913 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 1914 return FALSE;
deaaf2f3 1915
25dbc73a
AM		 1916 newsect = hdr->bfd_section;
1917 flags = bfd_get_section_flags (abfd, newsect);
1918 if (hdr->sh_flags & SHF_EXCLUDE)
1919 flags |= SEC_EXCLUDE;
9abc968f 1920
25dbc73a
AM		 1921 if (hdr->sh_type == SHT_ORDERED)
1922 flags |= SEC_SORT_ENTRIES;
d1c6de6f 1923
25dbc73a
AM		 1924 bfd_set_section_flags (abfd, newsect, flags);
1925 return TRUE;
1926}
1927
1928/* Set up any other section flags and such that may be necessary. */
1929
1930static bfd_boolean
1931ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1932 Elf_Internal_Shdr *shdr,
1933 asection *asect)
1934{
d30e8e7c 1935 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
25dbc73a
AM		 1936 shdr->sh_flags |= SHF_EXCLUDE;
1937
1938 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1939 shdr->sh_type = SHT_ORDERED;
1940
1941 return TRUE;
1942}
1943
1944/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1945 need to bump up the number of section headers. */
1946
1947static int
a6b96beb
AM		 1948ppc_elf_additional_program_headers (bfd *abfd,
1949 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM		 1950{
1951 asection *s;
1952 int ret = 0;
d1c6de6f 1953
25dbc73a
AM		 1954 s = bfd_get_section_by_name (abfd, ".sbss2");
1955 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1956 ++ret;
d1c6de6f 1957
25dbc73a
AM		 1958 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1959 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1960 ++ret;
deaaf2f3 1961
25dbc73a
AM		 1962 return ret;
1963}
deaaf2f3 1964
25dbc73a
AM		 1965/* Add extra PPC sections -- Note, for now, make .sbss2 and
1966 .PPC.EMB.sbss0 a normal section, and not a bss section so
1967 that the linker doesn't crater when trying to make more than
1968 2 sections. */
e656e369 1969
b35d266b 1970static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 1971{
0112cd26
NC		 1972 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
1973 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
1974 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
1975 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1976 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
1977 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
1978 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
1979 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
1980 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
1981 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 1982};
1983
551b43fd
AM		 1984/* This is what we want for new plt/got. */
1985static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 1986 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM		 1987
1988static const struct bfd_elf_special_section *
1989ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 1990{
b35d266b 1991 const struct bfd_elf_special_section *ssect;
551b43fd
AM		 1992
1993 /* See if this is one of the special sections. */
1994 if (sec->name == NULL)
1995 return NULL;
1996
1997 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
1998 sec->use_rela_p);
1999 if (ssect != NULL)
2000 {
2001 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2002 ssect = &ppc_alt_plt;
2003 return ssect;
2004 }
2005
2006 return _bfd_elf_get_sec_type_attr (abfd, sec);
2007}
25dbc73a
AM		 2008\f
2009/* Very simple linked list structure for recording apuinfo values. */
2010typedef struct apuinfo_list
2011{
2012 struct apuinfo_list *next;
2013 unsigned long value;
2014}
2015apuinfo_list;
e656e369 2016
25dbc73a 2017static apuinfo_list *head;
deaaf2f3 2018
deaaf2f3 2019
25dbc73a
AM		 2020static void
2021apuinfo_list_init (void)
2022{
2023 head = NULL;
2024}
9abc968f 2025
25dbc73a
AM		 2026static void
2027apuinfo_list_add (unsigned long value)
2028{
2029 apuinfo_list *entry = head;
deaaf2f3 2030
25dbc73a
AM		 2031 while (entry != NULL)
2032 {
2033 if (entry->value == value)
2034 return;
2035 entry = entry->next;
2036 }
b4a38de6 2037
25dbc73a
AM		 2038 entry = bfd_malloc (sizeof (* entry));
2039 if (entry == NULL)
2040 return;
e656e369 2041
25dbc73a
AM		 2042 entry->value = value;
2043 entry->next = head;
2044 head = entry;
2045}
9abc968f 2046
25dbc73a
AM		 2047static unsigned
2048apuinfo_list_length (void)
2049{
2050 apuinfo_list *entry;
2051 unsigned long count;
9abc968f 2052
25dbc73a
AM		 2053 for (entry = head, count = 0;
2054 entry;
2055 entry = entry->next)
2056 ++ count;
e656e369 2057
25dbc73a
AM		 2058 return count;
2059}
eea6121a 2060
25dbc73a
AM		 2061static inline unsigned long
2062apuinfo_list_element (unsigned long number)
2063{
2064 apuinfo_list * entry;
e656e369 2065
25dbc73a
AM		 2066 for (entry = head;
2067 entry && number --;
2068 entry = entry->next)
2069 ;
252b5132 2070
25dbc73a
AM		 2071 return entry ? entry->value : 0;
2072}
2073
2074static void
2075apuinfo_list_finish (void)
2076{
2077 apuinfo_list *entry;
2078
2079 for (entry = head; entry;)
252b5132 2080 {
25dbc73a
AM		 2081 apuinfo_list *next = entry->next;
2082 free (entry);
2083 entry = next;
2084 }
9abc968f 2085
25dbc73a
AM		 2086 head = NULL;
2087}
9abc968f 2088
25dbc73a
AM		 2089#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2090#define APUINFO_LABEL "APUinfo"
9abc968f 2091
25dbc73a
AM		 2092/* Scan the input BFDs and create a linked list of
2093 the APUinfo values that will need to be emitted. */
9abc968f 2094
25dbc73a
AM		 2095static void
2096ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2097{
2098 bfd *ibfd;
2099 asection *asec;
2100 char *buffer;
2101 unsigned num_input_sections;
2102 bfd_size_type output_section_size;
2103 unsigned i;
2104 unsigned num_entries;
2105 unsigned long offset;
2106 unsigned long length;
2107 const char *error_message = NULL;
9abc968f 2108
25dbc73a
AM		 2109 if (link_info == NULL)
2110 return;
9abc968f 2111
25dbc73a
AM		 2112 /* Scan the input bfds, looking for apuinfo sections. */
2113 num_input_sections = 0;
2114 output_section_size = 0;
252b5132 2115
25dbc73a 2116 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2117 {
25dbc73a
AM		 2118 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2119 if (asec)
252b5132 2120 {
25dbc73a
AM		 2121 ++ num_input_sections;
2122 output_section_size += asec->size;
252b5132 2123 }
252b5132
RH		 2124 }
2125
25dbc73a
AM		 2126 /* We need at least one input sections
2127 in order to make merging worthwhile. */
2128 if (num_input_sections < 1)
2129 return;
deaaf2f3 2130
25dbc73a
AM		 2131 /* Just make sure that the output section exists as well. */
2132 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2133 if (asec == NULL)
2134 return;
252b5132 2135
25dbc73a
AM		 2136 /* Allocate a buffer for the contents of the input sections. */
2137 buffer = bfd_malloc (output_section_size);
2138 if (buffer == NULL)
2139 return;
252b5132 2140
25dbc73a
AM		 2141 offset = 0;
2142 apuinfo_list_init ();
252b5132 2143
25dbc73a
AM		 2144 /* Read in the input sections contents. */
2145 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2146 {
25dbc73a
AM		 2147 unsigned long datum;
2148 char *ptr;
252b5132 2149
25dbc73a
AM		 2150 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2151 if (asec == NULL)
2152 continue;
252b5132 2153
25dbc73a
AM		 2154 length = asec->size;
2155 if (length < 24)
2156 {
2157 error_message = _("corrupt or empty %s section in %B");
2158 goto fail;
2159 }
252b5132 2160
25dbc73a
AM		 2161 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2162 || (bfd_bread (buffer + offset, length, ibfd) != length))
2163 {
2164 error_message = _("unable to read in %s section from %B");
2165 goto fail;
2166 }
252b5132 2167
25dbc73a
AM		 2168 /* Process the contents of the section. */
2169 ptr = buffer + offset;
2170 error_message = _("corrupt %s section in %B");
252b5132 2171
25dbc73a
AM		 2172 /* Verify the contents of the header. Note - we have to
2173 extract the values this way in order to allow for a
2174 host whose endian-ness is different from the target. */
2175 datum = bfd_get_32 (ibfd, ptr);
2176 if (datum != sizeof APUINFO_LABEL)
2177 goto fail;
252b5132 2178
25dbc73a
AM		 2179 datum = bfd_get_32 (ibfd, ptr + 8);
2180 if (datum != 0x2)
2181 goto fail;
252b5132 2182
25dbc73a
AM		 2183 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2184 goto fail;
252b5132 2185
25dbc73a
AM		 2186 /* Get the number of bytes used for apuinfo entries. */
2187 datum = bfd_get_32 (ibfd, ptr + 4);
2188 if (datum + 20 != length)
2189 goto fail;
2190
2191 /* Make sure that we do not run off the end of the section. */
2192 if (offset + length > output_section_size)
2193 goto fail;
2194
2195 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2196 for (i = 0; i < datum; i += 4)
2197 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2198
2199 /* Update the offset. */
2200 offset += length;
252b5132
RH		 2201 }
2202
25dbc73a 2203 error_message = NULL;
252b5132 2204
25dbc73a
AM		 2205 /* Compute the size of the output section. */
2206 num_entries = apuinfo_list_length ();
2207 output_section_size = 20 + num_entries * 4;
252b5132 2208
25dbc73a
AM		 2209 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2210
2211 if (! bfd_set_section_size (abfd, asec, output_section_size))
2212 ibfd = abfd,
2213 error_message = _("warning: unable to set size of %s section in %B");
2214
2215 fail:
2216 free (buffer);
2217
2218 if (error_message)
2219 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2220}
252b5132 2221
25dbc73a
AM		 2222/* Prevent the output section from accumulating the input sections'
2223 contents. We have already stored this in our linked list structure. */
252b5132 2224
25dbc73a
AM		 2225static bfd_boolean
2226ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2227 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM		 2228 asection *asec,
2229 bfd_byte *contents ATTRIBUTE_UNUSED)
2230{
2231 return (apuinfo_list_length ()
2232 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
252b5132
RH		 2233}
2234
25dbc73a
AM		 2235/* Finally we can generate the output section. */
2236
2237static void
2238ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2239{
25dbc73a
AM		 2240 bfd_byte *buffer;
2241 asection *asec;
2242 unsigned i;
2243 unsigned num_entries;
2244 bfd_size_type length;
7619e7c7 2245
25dbc73a
AM		 2246 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2247 if (asec == NULL)
2248 return;
2249
2250 if (apuinfo_list_length () == 0)
2251 return;
2252
2253 length = asec->size;
2254 if (length < 20)
2255 return;
2256
2257 buffer = bfd_malloc (length);
2258 if (buffer == NULL)
7619e7c7 2259 {
25dbc73a
AM		 2260 (*_bfd_error_handler)
2261 (_("failed to allocate space for new APUinfo section."));
2262 return;
7619e7c7 2263 }
7619e7c7 2264
25dbc73a
AM		 2265 /* Create the apuinfo header. */
2266 num_entries = apuinfo_list_length ();
2267 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2268 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2269 bfd_put_32 (abfd, 0x2, buffer + 8);
2270 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2271
25dbc73a
AM		 2272 length = 20;
2273 for (i = 0; i < num_entries; i++)
feee612b 2274 {
25dbc73a
AM		 2275 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2276 length += 4;
feee612b 2277 }
feee612b 2278
25dbc73a
AM		 2279 if (length != asec->size)
2280 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2281
25dbc73a
AM		 2282 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2283 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2284
25dbc73a
AM		 2285 free (buffer);
2286
2287 apuinfo_list_finish ();
252b5132 2288}
25dbc73a
AM		 2289\f
2290/* The following functions are specific to the ELF linker, while
2291 functions above are used generally. They appear in this file more
2292 or less in the order in which they are called. eg.
2293 ppc_elf_check_relocs is called early in the link process,
2294 ppc_elf_finish_dynamic_sections is one of the last functions
2295 called. */
252b5132 2296
25dbc73a
AM		 2297/* The PPC linker needs to keep track of the number of relocs that it
2298 decides to copy as dynamic relocs in check_relocs for each symbol.
2299 This is so that it can later discard them if they are found to be
2300 unnecessary. We store the information in a field extending the
2301 regular ELF linker hash table. */
ae9a127f 2302
25dbc73a 2303struct ppc_elf_dyn_relocs
252b5132 2304{
25dbc73a 2305 struct ppc_elf_dyn_relocs *next;
252b5132 2306
25dbc73a
AM		 2307 /* The input section of the reloc. */
2308 asection *sec;
252b5132 2309
25dbc73a
AM		 2310 /* Total number of relocs copied for the input section. */
2311 bfd_size_type count;
252b5132 2312
25dbc73a
AM		 2313 /* Number of pc-relative relocs copied for the input section. */
2314 bfd_size_type pc_count;
2315};
252b5132 2316
a6aa5195
AM		 2317/* Track PLT entries needed for a given symbol. We might need more
2318 than one glink entry per symbol. */
2319struct plt_entry
2320{
2321 struct plt_entry *next;
2322
2323 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2324 This field stores the offset into .got2 used to initialise the
2325 GOT pointer reg. It will always be at least 32768 (and for
2326 current gcc this is the only offset used). */
2327 bfd_vma addend;
2328
2329 /* The .got2 section. */
2330 asection *sec;
2331
2332 /* PLT refcount or offset. */
2333 union
2334 {
2335 bfd_signed_vma refcount;
2336 bfd_vma offset;
2337 } plt;
2338
2339 /* .glink stub offset. */
2340 bfd_vma glink_offset;
2341};
2342
25dbc73a
AM		 2343/* Of those relocs that might be copied as dynamic relocs, this macro
2344 selects those that must be copied when linking a shared library,
2345 even when the symbol is local. */
252b5132 2346
25dbc73a
AM		 2347#define MUST_BE_DYN_RELOC(RTYPE) \
2348 ((RTYPE) != R_PPC_REL24 \
2349 && (RTYPE) != R_PPC_REL14 \
2350 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2351 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2352 && (RTYPE) != R_PPC_REL32)
252b5132 2353
25dbc73a
AM		 2354/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2355 copying dynamic variables from a shared lib into an app's dynbss
2356 section, and instead use a dynamic relocation to point into the
2357 shared lib. */
2358#define ELIMINATE_COPY_RELOCS 1
252b5132 2359
25dbc73a 2360/* PPC ELF linker hash entry. */
252b5132 2361
25dbc73a
AM		 2362struct ppc_elf_link_hash_entry
2363{
2364 struct elf_link_hash_entry elf;
252b5132 2365
25dbc73a
AM		 2366 /* If this symbol is used in the linker created sections, the processor
2367 specific backend uses this field to map the field into the offset
2368 from the beginning of the section. */
2369 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2370
25dbc73a
AM		 2371 /* Track dynamic relocs copied for this symbol. */
2372 struct ppc_elf_dyn_relocs *dyn_relocs;
252b5132 2373
25dbc73a
AM		 2374 /* Contexts in which symbol is used in the GOT (or TOC).
2375 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2376 corresponding relocs are encountered during check_relocs.
2377 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2378 indicate the corresponding GOT entry type is not needed. */
2379#define TLS_GD 1 /* GD reloc. */
2380#define TLS_LD 2 /* LD reloc. */
2381#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2382#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2383#define TLS_TLS 16 /* Any TLS reloc. */
2384#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2385 char tls_mask;
4dc4a9a5
DJ		 2386
2387 /* Nonzero if we have seen a small data relocation referring to this
2388 symbol. */
2389 unsigned char has_sda_refs;
25dbc73a 2390};
252b5132 2391
25dbc73a
AM		 2392#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2393
2394/* PPC ELF linker hash table. */
2395
2396struct ppc_elf_link_hash_table
2397{
2398 struct elf_link_hash_table elf;
2399
2400 /* Short-cuts to get to dynamic linker sections. */
2401 asection *got;
2402 asection *relgot;
d7128ce4 2403 asection *glink;
25dbc73a
AM		 2404 asection *plt;
2405 asection *relplt;
2406 asection *dynbss;
2407 asection *relbss;
2408 asection *dynsbss;
2409 asection *relsbss;
c9a2f333 2410 elf_linker_section_t sdata[2];
25dbc73a
AM		 2411 asection *sbss;
2412
016687f8
AM		 2413 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2414 asection *srelplt2;
2415
2416 /* The .got.plt section (VxWorks only)*/
2417 asection *sgotplt;
2418
25dbc73a
AM		 2419 /* Shortcut to .__tls_get_addr. */
2420 struct elf_link_hash_entry *tls_get_addr;
252b5132 2421
016687f8
AM		 2422 /* The bfd that forced an old-style PLT. */
2423 bfd *old_bfd;
2424
25dbc73a
AM		 2425 /* TLS local dynamic got entry handling. */
2426 union {
2427 bfd_signed_vma refcount;
2428 bfd_vma offset;
2429 } tlsld_got;
252b5132 2430
d7128ce4
AM		 2431 /* Offset of PltResolve function in glink. */
2432 bfd_vma glink_pltresolve;
2433
3b36f7e6
AM		 2434 /* Size of reserved GOT entries. */
2435 unsigned int got_header_size;
2436 /* Non-zero if allocating the header left a gap. */
2437 unsigned int got_gap;
2438
4a3dc543
RS		 2439 /* The type of PLT we have chosen to use. */
2440 enum ppc_elf_plt_type plt_type;
2441
0ba07910
AM		 2442 /* Set if we should emit symbols for stubs. */
2443 unsigned int emit_stub_syms:1;
2444
9d8504b1 2445 /* True if the target system is VxWorks. */
016687f8 2446 unsigned int is_vxworks:1;
9d8504b1
PB		 2447
2448 /* The size of PLT entries. */
2449 int plt_entry_size;
2450 /* The distance between adjacent PLT slots. */
2451 int plt_slot_size;
2452 /* The size of the first PLT entry. */
2453 int plt_initial_entry_size;
016687f8
AM		 2454
2455 /* Small local sym to section mapping cache. */
2456 struct sym_sec_cache sym_sec;
25dbc73a 2457};
252b5132 2458
25dbc73a 2459/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2460
25dbc73a
AM		 2461#define ppc_elf_hash_table(p) \
2462 ((struct ppc_elf_link_hash_table *) (p)->hash)
252b5132 2463
25dbc73a 2464/* Create an entry in a PPC ELF linker hash table. */
252b5132 2465
25dbc73a
AM		 2466static struct bfd_hash_entry *
2467ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2468 struct bfd_hash_table *table,
2469 const char *string)
252b5132 2470{
25dbc73a
AM		 2471 /* Allocate the structure if it has not already been allocated by a
2472 subclass. */
2473 if (entry == NULL)
2474 {
2475 entry = bfd_hash_allocate (table,
2476 sizeof (struct ppc_elf_link_hash_entry));
2477 if (entry == NULL)
2478 return entry;
2479 }
252b5132 2480
25dbc73a
AM		 2481 /* Call the allocation method of the superclass. */
2482 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2483 if (entry != NULL)
2484 {
2485 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2486 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2487 ppc_elf_hash_entry (entry)->tls_mask = 0;
2488 }
252b5132 2489
25dbc73a 2490 return entry;
252b5132 2491}
3dab13f6 2492
25dbc73a 2493/* Create a PPC ELF linker hash table. */
3dab13f6 2494
25dbc73a
AM		 2495static struct bfd_link_hash_table *
2496ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2497{
25dbc73a 2498 struct ppc_elf_link_hash_table *ret;
3dab13f6 2499
25dbc73a
AM		 2500 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2501 if (ret == NULL)
2502 return NULL;
3dab13f6 2503
66eb6687
AM		 2504 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2505 ppc_elf_link_hash_newfunc,
2506 sizeof (struct ppc_elf_link_hash_entry)))
3dab13f6 2507 {
25dbc73a
AM		 2508 free (ret);
2509 return NULL;
2510 }
58111eb7 2511
a6aa5195
AM		 2512 ret->elf.init_plt_refcount.refcount = 0;
2513 ret->elf.init_plt_refcount.glist = NULL;
2514 ret->elf.init_plt_offset.offset = 0;
2515 ret->elf.init_plt_offset.glist = NULL;
2516
c9a2f333
AM		 2517 ret->sdata[0].name = ".sdata";
2518 ret->sdata[0].sym_name = "_SDA_BASE_";
2519 ret->sdata[0].bss_name = ".sbss";
2520
2521 ret->sdata[1].name = ".sdata2";
2522 ret->sdata[1].sym_name = "_SDA2_BASE_";
2523 ret->sdata[1].bss_name = ".sbss2";
2524
9d8504b1
PB		 2525 ret->plt_entry_size = 12;
2526 ret->plt_slot_size = 8;
2527 ret->plt_initial_entry_size = 72;
9d8504b1 2528
25dbc73a
AM		 2529 return &ret->elf.root;
2530}
3dab13f6 2531
9d8504b1 2532/* Create .got and the related sections. */
3dab13f6 2533
25dbc73a
AM		 2534static bfd_boolean
2535ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2536{
2537 struct ppc_elf_link_hash_table *htab;
2538 asection *s;
2539 flagword flags;
3dab13f6 2540
25dbc73a
AM		 2541 if (!_bfd_elf_create_got_section (abfd, info))
2542 return FALSE;
3dab13f6 2543
25dbc73a
AM		 2544 htab = ppc_elf_hash_table (info);
2545 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2546 if (s == NULL)
2547 abort ();
3dab13f6 2548
9d8504b1
PB		 2549 if (htab->is_vxworks)
2550 {
2551 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2552 if (!htab->sgotplt)
2553 abort ();
2554 }
2555 else
2556 {
2557 /* The powerpc .got has a blrl instruction in it. Mark it
2558 executable. */
2559 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2560 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2561 if (!bfd_set_section_flags (abfd, s, flags))
2562 return FALSE;
2563 }
3dab13f6 2564
3b36f7e6
AM		 2565 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2566 | SEC_LINKER_CREATED | SEC_READONLY);
2567 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
25dbc73a 2568 if (!htab->relgot
25dbc73a
AM		 2569 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2570 return FALSE;
3dab13f6 2571
25dbc73a
AM		 2572 return TRUE;
2573}
3dab13f6 2574
25dbc73a
AM		 2575/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2576 to output sections (just like _bfd_elf_create_dynamic_sections has
2577 to create .dynbss and .rela.bss). */
3dab13f6 2578
25dbc73a
AM		 2579static bfd_boolean
2580ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2581{
2582 struct ppc_elf_link_hash_table *htab;
2583 asection *s;
2584 flagword flags;
3dab13f6 2585
25dbc73a 2586 htab = ppc_elf_hash_table (info);
3dab13f6 2587
25dbc73a
AM		 2588 if (htab->got == NULL
2589 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM		 2590 return FALSE;
2591
25dbc73a
AM		 2592 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2593 return FALSE;
3dab13f6 2594
d7128ce4
AM		 2595 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2596 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2597
2598 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2599 htab->glink = s;
2600 if (s == NULL
2601 || !bfd_set_section_alignment (abfd, s, 4))
2602 return FALSE;
3dab13f6 2603
25dbc73a 2604 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM		 2605 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2606 SEC_ALLOC | SEC_LINKER_CREATED);
2607 htab->dynsbss = s;
3496cb2a 2608 if (s == NULL)
25dbc73a 2609 return FALSE;
3dab13f6 2610
25dbc73a
AM		 2611 if (! info->shared)
2612 {
2613 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
d7128ce4 2614 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2615 htab->relsbss = s;
25dbc73a 2616 if (s == NULL
25dbc73a
AM		 2617 || ! bfd_set_section_alignment (abfd, s, 2))
2618 return FALSE;
2619 }
3dab13f6 2620
711de32c
RS		 2621 if (htab->is_vxworks
2622 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2623 return FALSE;
9d8504b1 2624
25dbc73a
AM		 2625 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2626 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2627 if (s == NULL)
2628 abort ();
3dab13f6 2629
3b36f7e6 2630 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS		 2631 if (htab->plt_type == PLT_VXWORKS)
2632 /* The VxWorks PLT is a loaded section with contents. */
2633 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM		 2634 return bfd_set_section_flags (abfd, s, flags);
2635}
3dab13f6 2636
25dbc73a 2637/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2638
25dbc73a 2639static void
fcfa13d2 2640ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM		 2641 struct elf_link_hash_entry *dir,
2642 struct elf_link_hash_entry *ind)
2643{
2644 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2645
25dbc73a
AM		 2646 edir = (struct ppc_elf_link_hash_entry *) dir;
2647 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2648
25dbc73a
AM		 2649 if (eind->dyn_relocs != NULL)
2650 {
2651 if (edir->dyn_relocs != NULL)
3dab13f6 2652 {
25dbc73a
AM		 2653 struct ppc_elf_dyn_relocs **pp;
2654 struct ppc_elf_dyn_relocs *p;
3dab13f6 2655
fcfa13d2 2656 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM		 2657 list. Merge any entries against the same section. */
2658 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2659 {
25dbc73a
AM		 2660 struct ppc_elf_dyn_relocs *q;
2661
2662 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2663 if (q->sec == p->sec)
2664 {
2665 q->pc_count += p->pc_count;
2666 q->count += p->count;
2667 *pp = p->next;
2668 break;
2669 }
2670 if (q == NULL)
2671 pp = &p->next;
3dab13f6 2672 }
25dbc73a 2673 *pp = edir->dyn_relocs;
3dab13f6 2674 }
25dbc73a
AM		 2675
2676 edir->dyn_relocs = eind->dyn_relocs;
2677 eind->dyn_relocs = NULL;
3dab13f6 2678 }
3dab13f6 2679
25dbc73a 2680 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2681 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2682
a6aa5195
AM		 2683 /* If called to transfer flags for a weakdef during processing
2684 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2685 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2686 if (!(ELIMINATE_COPY_RELOCS
2687 && eind->elf.root.type != bfd_link_hash_indirect
2688 && edir->elf.dynamic_adjusted))
2689 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2690
2691 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2692 edir->elf.ref_regular |= eind->elf.ref_regular;
2693 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2694 edir->elf.needs_plt |= eind->elf.needs_plt;
2695
2696 /* If we were called to copy over info for a weak sym, that's all. */
2697 if (eind->elf.root.type != bfd_link_hash_indirect)
2698 return;
2699
2700 /* Copy over the GOT refcount entries that we may have already seen to
2701 the symbol which just became indirect. */
fcfa13d2
AM		 2702 edir->elf.got.refcount += eind->elf.got.refcount;
2703 eind->elf.got.refcount = 0;
a6aa5195
AM		 2704
2705 /* And plt entries. */
2706 if (eind->elf.plt.plist != NULL)
2707 {
2708 if (edir->elf.plt.plist != NULL)
2709 {
2710 struct plt_entry **entp;
2711 struct plt_entry *ent;
2712
2713 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2714 {
2715 struct plt_entry *dent;
2716
2717 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2718 if (dent->sec == ent->sec && dent->addend == ent->addend)
2719 {
2720 dent->plt.refcount += ent->plt.refcount;
2721 *entp = ent->next;
2722 break;
2723 }
2724 if (dent == NULL)
2725 entp = &ent->next;
2726 }
2727 *entp = edir->elf.plt.plist;
2728 }
2729
2730 edir->elf.plt.plist = eind->elf.plt.plist;
2731 eind->elf.plt.plist = NULL;
2732 }
2733
fcfa13d2 2734 if (eind->elf.dynindx != -1)
25dbc73a 2735 {
fcfa13d2
AM		 2736 if (edir->elf.dynindx != -1)
2737 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2738 edir->elf.dynstr_index);
a6aa5195
AM		 2739 edir->elf.dynindx = eind->elf.dynindx;
2740 edir->elf.dynstr_index = eind->elf.dynstr_index;
2741 eind->elf.dynindx = -1;
2742 eind->elf.dynstr_index = 0;
25dbc73a 2743 }
25dbc73a 2744}
3dab13f6 2745
8853c3d3
AM		 2746/* Return 1 if target is one of ours. */
2747
2748static bfd_boolean
2749is_ppc_elf_target (const struct bfd_target *targ)
2750{
2751 extern const bfd_target bfd_elf32_powerpc_vec;
7c492719 2752 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
8853c3d3
AM		 2753 extern const bfd_target bfd_elf32_powerpcle_vec;
2754
7c492719
RS		 2755 return (targ == &bfd_elf32_powerpc_vec
2756 || targ == &bfd_elf32_powerpc_vxworks_vec
2757 || targ == &bfd_elf32_powerpcle_vec);
8853c3d3
AM		 2758}
2759
25dbc73a
AM		 2760/* Hook called by the linker routine which adds symbols from an object
2761 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 2762
25dbc73a
AM		 2763static bfd_boolean
2764ppc_elf_add_symbol_hook (bfd *abfd,
2765 struct bfd_link_info *info,
2766 Elf_Internal_Sym *sym,
2767 const char **namep ATTRIBUTE_UNUSED,
2768 flagword *flagsp ATTRIBUTE_UNUSED,
2769 asection **secp,
2770 bfd_vma *valp)
2771{
2772 if (sym->st_shndx == SHN_COMMON
2773 && !info->relocatable
2774 && sym->st_size <= elf_gp_size (abfd)
d2663f46 2775 && is_ppc_elf_target (info->hash->creator))
25dbc73a
AM		 2776 {
2777 /* Common symbols less than or equal to -G nn bytes are automatically
2778 put into .sbss. */
2779 struct ppc_elf_link_hash_table *htab;
3dab13f6 2780
25dbc73a
AM		 2781 htab = ppc_elf_hash_table (info);
2782 if (htab->sbss == NULL)
2783 {
644285ef 2784 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 2785
644285ef
AM		 2786 if (!htab->elf.dynobj)
2787 htab->elf.dynobj = abfd;
2788
3496cb2a
L		 2789 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2790 ".sbss",
2791 flags);
2792 if (htab->sbss == NULL)
25dbc73a 2793 return FALSE;
3dab13f6 2794 }
3dab13f6 2795
25dbc73a
AM		 2796 *secp = htab->sbss;
2797 *valp = sym->st_size;
2798 }
3dab13f6 2799
25dbc73a 2800 return TRUE;
3dab13f6
AM		 2801}
2802\f
046183de
AM		 2803static bfd_boolean
2804create_sdata_sym (struct ppc_elf_link_hash_table *htab,
2805 elf_linker_section_t *lsect)
2806{
2807 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
2808 TRUE, FALSE, TRUE);
2809 if (lsect->sym == NULL)
2810 return FALSE;
2811 if (lsect->sym->root.type == bfd_link_hash_new)
2812 lsect->sym->non_elf = 0;
2813 lsect->sym->ref_regular = 1;
2814 return TRUE;
2815}
2816
c9a2f333 2817/* Create a special linker section. */
25dbc73a 2818
c9a2f333 2819static bfd_boolean
55fd94b0
AM		 2820ppc_elf_create_linker_section (bfd *abfd,
2821 struct bfd_link_info *info,
c9a2f333
AM		 2822 flagword flags,
2823 elf_linker_section_t *lsect)
252b5132 2824{
58111eb7 2825 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 2826 asection *s;
58111eb7 2827
c9a2f333
AM		 2828 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2829 | SEC_LINKER_CREATED);
58111eb7
AM		 2830
2831 /* Record the first bfd that needs the special sections. */
2832 if (!htab->elf.dynobj)
2833 htab->elf.dynobj = abfd;
2834
3496cb2a
L		 2835 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2836 lsect->name,
2837 flags);
76750a2f 2838 if (s == NULL
76750a2f 2839 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 2840 return FALSE;
76750a2f 2841 lsect->section = s;
58111eb7 2842
046183de 2843 return create_sdata_sym (htab, lsect);
252b5132 2844}
252b5132 2845
25dbc73a
AM		 2846/* Find a linker generated pointer with a given addend and type. */
2847
2848static elf_linker_section_pointers_t *
2849elf_find_pointer_linker_section
2850 (elf_linker_section_pointers_t *linker_pointers,
2851 bfd_vma addend,
2852 elf_linker_section_t *lsect)
252b5132 2853{
25dbc73a
AM		 2854 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2855 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2856 return linker_pointers;
252b5132 2857
25dbc73a
AM		 2858 return NULL;
2859}
2860
2861/* Allocate a pointer to live in a linker created section. */
2862
2863static bfd_boolean
2864elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM		 2865 elf_linker_section_t *lsect,
2866 struct elf_link_hash_entry *h,
2867 const Elf_Internal_Rela *rel)
2868{
2869 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2870 elf_linker_section_pointers_t *linker_section_ptr;
2871 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2872 bfd_size_type amt;
2873
2874 BFD_ASSERT (lsect != NULL);
2875
2876 /* Is this a global symbol? */
2877 if (h != NULL)
2878 {
2879 struct ppc_elf_link_hash_entry *eh;
2880
2881 /* Has this symbol already been allocated? If so, our work is done. */
2882 eh = (struct ppc_elf_link_hash_entry *) h;
2883 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2884 rel->r_addend,
2885 lsect))
2886 return TRUE;
2887
2888 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM		 2889 }
2890 else
2891 {
0ffa91dd
NC		 2892 BFD_ASSERT (is_ppc_elf_target (abfd->xvec));
2893
25dbc73a
AM		 2894 /* Allocation of a pointer to a local symbol. */
2895 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2896
2897 /* Allocate a table to hold the local symbols if first time. */
2898 if (!ptr)
2899 {
0ffa91dd 2900 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM		 2901
2902 amt = num_symbols;
2903 amt *= sizeof (elf_linker_section_pointers_t *);
2904 ptr = bfd_zalloc (abfd, amt);
2905
2906 if (!ptr)
2907 return FALSE;
2908
2909 elf_local_ptr_offsets (abfd) = ptr;
2910 }
2911
2912 /* Has this symbol already been allocated? If so, our work is done. */
2913 if (elf_find_pointer_linker_section (ptr[r_symndx],
2914 rel->r_addend,
2915 lsect))
2916 return TRUE;
252b5132 2917
25dbc73a 2918 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 2919 }
41fcb14e 2920
25dbc73a
AM		 2921 /* Allocate space for a pointer in the linker section, and allocate
2922 a new pointer record from internal memory. */
2923 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2924 amt = sizeof (elf_linker_section_pointers_t);
2925 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 2926
25dbc73a 2927 if (!linker_section_ptr)
7619e7c7 2928 return FALSE;
41fcb14e 2929
25dbc73a
AM		 2930 linker_section_ptr->next = *ptr_linker_section_ptr;
2931 linker_section_ptr->addend = rel->r_addend;
2932 linker_section_ptr->lsect = lsect;
25dbc73a 2933 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 2934
25dbc73a
AM		 2935 linker_section_ptr->offset = lsect->section->size;
2936 lsect->section->size += 4;
7619e7c7 2937
25dbc73a
AM		 2938#ifdef DEBUG
2939 fprintf (stderr,
2940 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2941 lsect->name, (long) linker_section_ptr->offset,
2942 (long) lsect->section->size);
2943#endif
7619e7c7
AM		 2944
2945 return TRUE;
41fcb14e
AM		 2946}
2947
b34976b6 2948static bfd_boolean
25dbc73a
AM		 2949update_local_sym_info (bfd *abfd,
2950 Elf_Internal_Shdr *symtab_hdr,
2951 unsigned long r_symndx,
2952 int tls_type)
252b5132 2953{
25dbc73a
AM		 2954 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
2955 char *local_got_tls_masks;
252b5132 2956
25dbc73a 2957 if (local_got_refcounts == NULL)
252b5132 2958 {
25dbc73a
AM		 2959 bfd_size_type size = symtab_hdr->sh_info;
2960
2961 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
2962 local_got_refcounts = bfd_zalloc (abfd, size);
2963 if (local_got_refcounts == NULL)
b34976b6 2964 return FALSE;
25dbc73a 2965 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 2966 }
41fcb14e 2967
25dbc73a
AM		 2968 local_got_refcounts[r_symndx] += 1;
2969 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
2970 local_got_tls_masks[r_symndx] |= tls_type;
2971 return TRUE;
2972}
41fcb14e 2973
a6aa5195
AM		 2974static bfd_boolean
2975update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
2976 asection *sec, bfd_vma addend)
2977{
2978 struct plt_entry *ent;
2979
2980 if (addend < 32768)
2981 sec = NULL;
2982 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2983 if (ent->sec == sec && ent->addend == addend)
2984 break;
2985 if (ent == NULL)
2986 {
2987 bfd_size_type amt = sizeof (*ent);
2988 ent = bfd_alloc (abfd, amt);
2989 if (ent == NULL)
2990 return FALSE;
2991 ent->next = h->plt.plist;
2992 ent->sec = sec;
2993 ent->addend = addend;
2994 ent->plt.refcount = 0;
2995 h->plt.plist = ent;
2996 }
2997 ent->plt.refcount += 1;
2998 return TRUE;
2999}
3000
3001static struct plt_entry *
3002find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3003{
3004 struct plt_entry *ent;
3005
3006 if (addend < 32768)
3007 sec = NULL;
3008 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3009 if (ent->sec == sec && ent->addend == addend)
3010 break;
3011 return ent;
3012}
3013
25dbc73a
AM		 3014static void
3015bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3016{
3017 (*_bfd_error_handler)
3018 (_("%B: relocation %s cannot be used when making a shared object"),
3019 abfd,
3020 ppc_elf_howto_table[r_type]->name);
3021 bfd_set_error (bfd_error_bad_value);
252b5132
RH		 3022}
3023
25dbc73a
AM		 3024/* Look through the relocs for a section during the first phase, and
3025 allocate space in the global offset table or procedure linkage
3026 table. */
252b5132 3027
b34976b6 3028static bfd_boolean
25dbc73a
AM		 3029ppc_elf_check_relocs (bfd *abfd,
3030 struct bfd_link_info *info,
3031 asection *sec,
3032 const Elf_Internal_Rela *relocs)
252b5132 3033{
7619e7c7 3034 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM		 3035 Elf_Internal_Shdr *symtab_hdr;
3036 struct elf_link_hash_entry **sym_hashes;
3037 const Elf_Internal_Rela *rel;
3038 const Elf_Internal_Rela *rel_end;
a6aa5195 3039 asection *got2, *sreloc;
25dbc73a
AM		 3040
3041 if (info->relocatable)
3042 return TRUE;
252b5132 3043
c87b5a93
AM		 3044 /* Don't do anything special with non-loaded, non-alloced sections.
3045 In particular, any relocs in such sections should not affect GOT
3046 and PLT reference counting (ie. we don't allow them to create GOT
3047 or PLT entries), there's no possibility or desire to optimize TLS
3048 relocs, and there's not much point in propagating relocs to shared
3049 libs that the dynamic linker won't relocate. */
3050 if ((sec->flags & SEC_ALLOC) == 0)
3051 return TRUE;
3052
252b5132 3053#ifdef DEBUG
25dbc73a
AM		 3054 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3055 sec, abfd);
252b5132
RH		 3056#endif
3057
0ffa91dd
NC		 3058 BFD_ASSERT (is_ppc_elf_target (abfd->xvec));
3059
25dbc73a
AM		 3060 /* Initialize howto table if not already done. */
3061 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3062 ppc_elf_howto_init ();
3063
7619e7c7 3064 htab = ppc_elf_hash_table (info);
0ffa91dd 3065 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3066 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3067 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3068 sreloc = NULL;
3069
3070 rel_end = relocs + sec->reloc_count;
3071 for (rel = relocs; rel < rel_end; rel++)
3072 {
3073 unsigned long r_symndx;
3074 enum elf_ppc_reloc_type r_type;
3075 struct elf_link_hash_entry *h;
3076 int tls_type = 0;
3077
3078 r_symndx = ELF32_R_SYM (rel->r_info);
3079 if (r_symndx < symtab_hdr->sh_info)
3080 h = NULL;
3081 else
973a3492
L		 3082 {
3083 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3084 while (h->root.type == bfd_link_hash_indirect
3085 || h->root.type == bfd_link_hash_warning)
3086 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3087 }
25dbc73a
AM		 3088
3089 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3090 This shows up in particular in an R_PPC_ADDR32 in the eabi
3091 startup code. */
3b36f7e6
AM		 3092 if (h != NULL
3093 && htab->got == NULL
3094 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3095 {
3b36f7e6
AM		 3096 if (htab->elf.dynobj == NULL)
3097 htab->elf.dynobj = abfd;
3098 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3099 return FALSE;
3100 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3101 }
252b5132 3102
25dbc73a
AM		 3103 r_type = ELF32_R_TYPE (rel->r_info);
3104 switch (r_type)
3105 {
3106 case R_PPC_GOT_TLSLD16:
3107 case R_PPC_GOT_TLSLD16_LO:
3108 case R_PPC_GOT_TLSLD16_HI:
3109 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 3110 tls_type = TLS_TLS | TLS_LD;
3111 goto dogottls;
252b5132 3112
25dbc73a
AM		 3113 case R_PPC_GOT_TLSGD16:
3114 case R_PPC_GOT_TLSGD16_LO:
3115 case R_PPC_GOT_TLSGD16_HI:
3116 case R_PPC_GOT_TLSGD16_HA:
3117 tls_type = TLS_TLS | TLS_GD;
3118 goto dogottls;
3119
3120 case R_PPC_GOT_TPREL16:
3121 case R_PPC_GOT_TPREL16_LO:
3122 case R_PPC_GOT_TPREL16_HI:
3123 case R_PPC_GOT_TPREL16_HA:
3124 if (info->shared)
3125 info->flags |= DF_STATIC_TLS;
3126 tls_type = TLS_TLS | TLS_TPREL;
3127 goto dogottls;
3128
3129 case R_PPC_GOT_DTPREL16:
3130 case R_PPC_GOT_DTPREL16_LO:
3131 case R_PPC_GOT_DTPREL16_HI:
3132 case R_PPC_GOT_DTPREL16_HA:
3133 tls_type = TLS_TLS | TLS_DTPREL;
3134 dogottls:
3135 sec->has_tls_reloc = 1;
3136 /* Fall thru */
252b5132 3137
25dbc73a
AM		 3138 /* GOT16 relocations */
3139 case R_PPC_GOT16:
3140 case R_PPC_GOT16_LO:
3141 case R_PPC_GOT16_HI:
3142 case R_PPC_GOT16_HA:
3143 /* This symbol requires a global offset table entry. */
3144 if (htab->got == NULL)
3145 {
3146 if (htab->elf.dynobj == NULL)
3147 htab->elf.dynobj = abfd;
3148 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3149 return FALSE;
3150 }
3151 if (h != NULL)
3152 {
3153 h->got.refcount += 1;
3154 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3155 }
3156 else
3157 /* This is a global offset table entry for a local symbol. */
3158 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3159 return FALSE;
3160 break;
252b5132 3161
25dbc73a
AM		 3162 /* Indirect .sdata relocation. */
3163 case R_PPC_EMB_SDAI16:
3164 if (info->shared)
3165 {
3166 bad_shared_reloc (abfd, r_type);
3167 return FALSE;
3168 }
c9a2f333
AM		 3169 if (htab->sdata[0].section == NULL
3170 && !ppc_elf_create_linker_section (abfd, info, 0,
3171 &htab->sdata[0]))
3172 return FALSE;
76750a2f
AM		 3173 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3174 h, rel))
25dbc73a 3175 return FALSE;
046183de
AM		 3176 if (h != NULL)
3177 {
3178 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3179 h->non_got_ref = TRUE;
3180 }
25dbc73a 3181 break;
252b5132 3182
25dbc73a
AM		 3183 /* Indirect .sdata2 relocation. */
3184 case R_PPC_EMB_SDA2I16:
3185 if (info->shared)
3186 {
3187 bad_shared_reloc (abfd, r_type);
3188 return FALSE;
3189 }
c9a2f333
AM		 3190 if (htab->sdata[1].section == NULL
3191 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3192 &htab->sdata[1]))
3193 return FALSE;
76750a2f
AM		 3194 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3195 h, rel))
25dbc73a 3196 return FALSE;
046183de
AM		 3197 if (h != NULL)
3198 {
3199 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3200 h->non_got_ref = TRUE;
3201 }
25dbc73a 3202 break;
252b5132 3203
25dbc73a 3204 case R_PPC_SDAREL16:
046183de
AM		 3205 if (info->shared)
3206 {
3207 bad_shared_reloc (abfd, r_type);
3208 return FALSE;
3209 }
3210 if (htab->sdata[0].sym == NULL
3211 && !create_sdata_sym (htab, &htab->sdata[0]))
3212 return FALSE;
3213 if (h != NULL)
3214 {
3215 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3216 h->non_got_ref = TRUE;
3217 }
3218 break;
3219
25dbc73a 3220 case R_PPC_EMB_SDA2REL:
046183de
AM		 3221 if (info->shared)
3222 {
3223 bad_shared_reloc (abfd, r_type);
3224 return FALSE;
3225 }
3226 if (htab->sdata[1].sym == NULL
3227 && !create_sdata_sym (htab, &htab->sdata[1]))
3228 return FALSE;
3229 if (h != NULL)
3230 {
3231 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3232 h->non_got_ref = TRUE;
3233 }
3234 break;
3235
25dbc73a
AM		 3236 case R_PPC_EMB_SDA21:
3237 case R_PPC_EMB_RELSDA:
046183de
AM		 3238 if (info->shared)
3239 {
3240 bad_shared_reloc (abfd, r_type);
3241 return FALSE;
3242 }
3243 if (htab->sdata[0].sym == NULL
3244 && !create_sdata_sym (htab, &htab->sdata[0]))
3245 return FALSE;
3246 if (htab->sdata[1].sym == NULL
3247 && !create_sdata_sym (htab, &htab->sdata[1]))
3248 return FALSE;
3249 if (h != NULL)
3250 {
3251 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3252 h->non_got_ref = TRUE;
3253 }
3254 break;
3255
25dbc73a
AM		 3256 case R_PPC_EMB_NADDR32:
3257 case R_PPC_EMB_NADDR16:
3258 case R_PPC_EMB_NADDR16_LO:
3259 case R_PPC_EMB_NADDR16_HI:
3260 case R_PPC_EMB_NADDR16_HA:
3261 if (info->shared)
3262 {
3263 bad_shared_reloc (abfd, r_type);
3264 return FALSE;
3265 }
4dc4a9a5 3266 if (h != NULL)
046183de 3267 h->non_got_ref = TRUE;
25dbc73a 3268 break;
252b5132 3269
25dbc73a
AM		 3270 case R_PPC_PLT32:
3271 case R_PPC_PLTREL24:
3272 case R_PPC_PLTREL32:
3273 case R_PPC_PLT16_LO:
3274 case R_PPC_PLT16_HI:
3275 case R_PPC_PLT16_HA:
3276#ifdef DEBUG
3277 fprintf (stderr, "Reloc requires a PLT entry\n");
3278#endif
3279 /* This symbol requires a procedure linkage table entry. We
3280 actually build the entry in finish_dynamic_symbol,
3281 because this might be a case of linking PIC code without
3282 linking in any dynamic objects, in which case we don't
3283 need to generate a procedure linkage table after all. */
7619e7c7 3284
25dbc73a
AM		 3285 if (h == NULL)
3286 {
3287 /* It does not make sense to have a procedure linkage
3288 table entry for a local symbol. */
3289 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3290 "local symbol"),
3291 abfd,
3292 sec,
3293 (long) rel->r_offset,
3294 ppc_elf_howto_table[r_type]->name);
3295 bfd_set_error (bfd_error_bad_value);
3296 return FALSE;
3297 }
a6aa5195
AM		 3298 else
3299 {
016687f8 3300 bfd_vma addend = 0;
ee05f2fe 3301
016687f8
AM		 3302 if (r_type == R_PPC_PLTREL24)
3303 {
3304 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3305 addend = rel->r_addend;
3306 }
a6aa5195
AM		 3307 h->needs_plt = 1;
3308 if (!update_plt_info (abfd, h, got2, addend))
3309 return FALSE;
3310 }
25dbc73a 3311 break;
ee05f2fe 3312
25dbc73a
AM		 3313 /* The following relocations don't need to propagate the
3314 relocation if linking a shared object since they are
3315 section relative. */
3316 case R_PPC_SECTOFF:
3317 case R_PPC_SECTOFF_LO:
3318 case R_PPC_SECTOFF_HI:
3319 case R_PPC_SECTOFF_HA:
3320 case R_PPC_DTPREL16:
3321 case R_PPC_DTPREL16_LO:
3322 case R_PPC_DTPREL16_HI:
3323 case R_PPC_DTPREL16_HA:
3324 case R_PPC_TOC16:
3325 break;
252b5132 3326
d7128ce4
AM		 3327 case R_PPC_REL16:
3328 case R_PPC_REL16_LO:
3329 case R_PPC_REL16_HI:
3330 case R_PPC_REL16_HA:
016687f8 3331 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM		 3332 break;
3333
a6aa5195 3334 /* These are just markers. */
25dbc73a
AM		 3335 case R_PPC_TLS:
3336 case R_PPC_EMB_MRKREF:
3337 case R_PPC_NONE:
3338 case R_PPC_max:
3339 break;
252b5132 3340
25dbc73a
AM		 3341 /* These should only appear in dynamic objects. */
3342 case R_PPC_COPY:
3343 case R_PPC_GLOB_DAT:
3344 case R_PPC_JMP_SLOT:
3345 case R_PPC_RELATIVE:
3346 break;
252b5132 3347
25dbc73a
AM		 3348 /* These aren't handled yet. We'll report an error later. */
3349 case R_PPC_ADDR30:
3350 case R_PPC_EMB_RELSEC16:
3351 case R_PPC_EMB_RELST_LO:
3352 case R_PPC_EMB_RELST_HI:
3353 case R_PPC_EMB_RELST_HA:
3354 case R_PPC_EMB_BIT_FLD:
3355 break;
252b5132 3356
25dbc73a
AM		 3357 /* This refers only to functions defined in the shared library. */
3358 case R_PPC_LOCAL24PC:
4a3dc543 3359 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM		 3360 {
3361 htab->plt_type = PLT_OLD;
3362 htab->old_bfd = abfd;
3363 }
25dbc73a 3364 break;
252b5132 3365
25dbc73a
AM		 3366 /* This relocation describes the C++ object vtable hierarchy.
3367 Reconstruct it for later use during GC. */
3368 case R_PPC_GNU_VTINHERIT:
3369 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3370 return FALSE;
3371 break;
252b5132 3372
25dbc73a
AM		 3373 /* This relocation describes which C++ vtable entries are actually
3374 used. Record for later use during GC. */
3375 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB		 3376 BFD_ASSERT (h != NULL);
3377 if (h != NULL
3378 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM		 3379 return FALSE;
3380 break;
252b5132 3381
25dbc73a
AM		 3382 /* We shouldn't really be seeing these. */
3383 case R_PPC_TPREL32:
3384 if (info->shared)
3385 info->flags |= DF_STATIC_TLS;
3386 goto dodyn;
252b5132 3387
25dbc73a
AM		 3388 /* Nor these. */
3389 case R_PPC_DTPMOD32:
3390 case R_PPC_DTPREL32:
3391 goto dodyn;
252b5132 3392
25dbc73a
AM		 3393 case R_PPC_TPREL16:
3394 case R_PPC_TPREL16_LO:
3395 case R_PPC_TPREL16_HI:
3396 case R_PPC_TPREL16_HA:
3397 if (info->shared)
3398 info->flags |= DF_STATIC_TLS;
3399 goto dodyn;
ee05f2fe 3400
9edfd1af
AM		 3401 case R_PPC_REL32:
3402 if (h == NULL
3403 && got2 != NULL
3404 && (sec->flags & SEC_CODE) != 0
3405 && (info->shared || info->pie)
4a3dc543 3406 && htab->plt_type == PLT_UNSET)
9edfd1af
AM		 3407 {
3408 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3409 the start of a function, which assembles to a REL32
3410 reference to .got2. If we detect one of these, then
3411 force the old PLT layout because the linker cannot
3412 reliably deduce the GOT pointer value needed for
3413 PLT call stubs. */
3414 asection *s;
3415
3416 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3417 r_symndx);
3418 if (s == got2)
016687f8
AM		 3419 {
3420 htab->plt_type = PLT_OLD;
3421 htab->old_bfd = abfd;
3422 }
9edfd1af 3423 }
7123df0e 3424 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3425 break;
7123df0e 3426 goto dodyn1;
9edfd1af 3427
25dbc73a
AM		 3428 case R_PPC_REL24:
3429 case R_PPC_REL14:
3430 case R_PPC_REL14_BRTAKEN:
3431 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3432 if (h == NULL)
25dbc73a 3433 break;
7123df0e 3434 if (h == htab->elf.hgot)
d7128ce4 3435 {
7123df0e 3436 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3437 {
3438 htab->plt_type = PLT_OLD;
3439 htab->old_bfd = abfd;
3440 }
d7128ce4
AM		 3441 break;
3442 }
25dbc73a 3443 /* fall through */
ee05f2fe 3444
25dbc73a
AM		 3445 case R_PPC_ADDR32:
3446 case R_PPC_ADDR24:
3447 case R_PPC_ADDR16:
3448 case R_PPC_ADDR16_LO:
3449 case R_PPC_ADDR16_HI:
3450 case R_PPC_ADDR16_HA:
3451 case R_PPC_ADDR14:
3452 case R_PPC_ADDR14_BRTAKEN:
3453 case R_PPC_ADDR14_BRNTAKEN:
3454 case R_PPC_UADDR32:
3455 case R_PPC_UADDR16:
7123df0e 3456 dodyn1:
25dbc73a
AM		 3457 if (h != NULL && !info->shared)
3458 {
3459 /* We may need a plt entry if the symbol turns out to be
3460 a function defined in a dynamic object. */
a6aa5195
AM		 3461 if (!update_plt_info (abfd, h, NULL, 0))
3462 return FALSE;
7fce784e 3463
25dbc73a
AM		 3464 /* We may need a copy reloc too. */
3465 h->non_got_ref = 1;
3466 }
7619e7c7 3467
25dbc73a
AM		 3468 dodyn:
3469 /* If we are creating a shared library, and this is a reloc
3470 against a global symbol, or a non PC relative reloc
3471 against a local symbol, then we need to copy the reloc
3472 into the shared library. However, if we are linking with
3473 -Bsymbolic, we do not need to copy a reloc against a
3474 global symbol which is defined in an object we are
3475 including in the link (i.e., DEF_REGULAR is set). At
3476 this point we have not seen all the input files, so it is
3477 possible that DEF_REGULAR is not set now but will be set
3478 later (it is never cleared). In case of a weak definition,
3479 DEF_REGULAR may be cleared later by a strong definition in
3480 a shared library. We account for that possibility below by
3481 storing information in the dyn_relocs field of the hash
3482 table entry. A similar situation occurs when creating
3483 shared libraries and symbol visibility changes render the
3484 symbol local.
7619e7c7 3485
25dbc73a
AM		 3486 If on the other hand, we are creating an executable, we
3487 may need to keep relocations for symbols satisfied by a
3488 dynamic library if we manage to avoid copy relocs for the
3489 symbol. */
3490 if ((info->shared
3491 && (MUST_BE_DYN_RELOC (r_type)
3492 || (h != NULL
3493 && (! info->symbolic
3494 || h->root.type == bfd_link_hash_defweak
3495 || !h->def_regular))))
3496 || (ELIMINATE_COPY_RELOCS
3497 && !info->shared
25dbc73a
AM		 3498 && h != NULL
3499 && (h->root.type == bfd_link_hash_defweak
3500 || !h->def_regular)))
3501 {
3502 struct ppc_elf_dyn_relocs *p;
3503 struct ppc_elf_dyn_relocs **head;
7619e7c7 3504
25dbc73a
AM		 3505#ifdef DEBUG
3506 fprintf (stderr,
3507 "ppc_elf_check_relocs needs to "
3508 "create relocation for %s\n",
3509 (h && h->root.root.string
3510 ? h->root.root.string : "<unknown>"));
3511#endif
3512 if (sreloc == NULL)
3513 {
3514 const char *name;
7619e7c7 3515
25dbc73a
AM		 3516 name = (bfd_elf_string_from_elf_section
3517 (abfd,
3518 elf_elfheader (abfd)->e_shstrndx,
3519 elf_section_data (sec)->rel_hdr.sh_name));
3520 if (name == NULL)
3521 return FALSE;
7619e7c7 3522
0112cd26 3523 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
25dbc73a
AM		 3524 && strcmp (bfd_get_section_name (abfd, sec),
3525 name + 5) == 0);
7619e7c7 3526
c9a2f333
AM		 3527 if (htab->elf.dynobj == NULL)
3528 htab->elf.dynobj = abfd;
25dbc73a
AM		 3529 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3530 if (sreloc == NULL)
3531 {
3532 flagword flags;
7619e7c7 3533
25dbc73a 3534 flags = (SEC_HAS_CONTENTS | SEC_READONLY
c87b5a93
AM		 3535 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3536 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 3537 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3538 name,
3539 flags);
25dbc73a 3540 if (sreloc == NULL
25dbc73a
AM		 3541 || ! bfd_set_section_alignment (htab->elf.dynobj,
3542 sreloc, 2))
3543 return FALSE;
3544 }
3545 elf_section_data (sec)->sreloc = sreloc;
3546 }
7619e7c7 3547
25dbc73a
AM		 3548 /* If this is a global symbol, we count the number of
3549 relocations we need for this symbol. */
3550 if (h != NULL)
3551 {
3552 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3553 }
3554 else
3555 {
3556 /* Track dynamic relocs needed for local syms too.
3557 We really need local syms available to do this
3558 easily. Oh well. */
7619e7c7 3559
25dbc73a 3560 asection *s;
6edfbbad
DJ		 3561 void *vpp;
3562
25dbc73a
AM		 3563 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3564 sec, r_symndx);
3565 if (s == NULL)
3566 return FALSE;
7fce784e 3567
6edfbbad
DJ		 3568 vpp = &elf_section_data (s)->local_dynrel;
3569 head = (struct ppc_elf_dyn_relocs **) vpp;
25dbc73a 3570 }
7fce784e 3571
25dbc73a
AM		 3572 p = *head;
3573 if (p == NULL || p->sec != sec)
3574 {
3575 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3576 if (p == NULL)
3577 return FALSE;
3578 p->next = *head;
3579 *head = p;
3580 p->sec = sec;
3581 p->count = 0;
3582 p->pc_count = 0;
3583 }
3584
3585 p->count += 1;
3586 if (!MUST_BE_DYN_RELOC (r_type))
3587 p->pc_count += 1;
7619e7c7 3588 }
25dbc73a
AM		 3589
3590 break;
7619e7c7
AM		 3591 }
3592 }
ee05f2fe 3593
25dbc73a
AM		 3594 return TRUE;
3595}
3596\f
34c8bcba
JM		 3597
3598/* Merge object attributes from IBFD into OBFD. Raise an error if
3599 there are conflicting attributes. */
3600static bfd_boolean
3601ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3602{
c6e65352
DJ		 3603 obj_attribute *in_attr, *in_attrs;
3604 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM		 3605
3606 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3607 {
3608 /* This is the first object. Copy the attributes. */
3609 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3610
3611 /* Use the Tag_null value to indicate the attributes have been
3612 initialized. */
3613 elf_known_obj_attributes_proc (obfd)[0].i = 1;
3614
3615 return TRUE;
3616 }
3617
c6e65352
DJ		 3618 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3619 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3620
34c8bcba
JM		 3621 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3622 non-conflicting ones. */
c6e65352
DJ		 3623 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
3624 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
3625 if (in_attr->i != out_attr->i)
34c8bcba 3626 {
c6e65352
DJ		 3627 out_attr->type = 1;
3628 if (out_attr->i == 0)
3629 out_attr->i = in_attr->i;
3630 else if (in_attr->i == 0)
34c8bcba 3631 ;
c6e65352 3632 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM		 3633 _bfd_error_handler
3634 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
c6e65352 3635 else if (out_attr->i == 2 && in_attr->i == 1)
34c8bcba
JM		 3636 _bfd_error_handler
3637 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
c6e65352 3638 else if (in_attr->i > 2)
34c8bcba
JM		 3639 _bfd_error_handler
3640 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 3641 in_attr->i);
34c8bcba
JM		 3642 else
3643 _bfd_error_handler
3644 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ		 3645 out_attr->i);
3646 }
3647
3648 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
3649 merge non-conflicting ones. */
3650 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
3651 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
3652 if (in_attr->i != out_attr->i)
3653 {
3654 const char *in_abi = NULL, *out_abi = NULL;
3655
3656 switch (in_attr->i)
3657 {
3658 case 1: in_abi = "generic"; break;
3659 case 2: in_abi = "AltiVec"; break;
3660 case 3: in_abi = "SPE"; break;
3661 }
3662
3663 switch (out_attr->i)
3664 {
3665 case 1: out_abi = "generic"; break;
3666 case 2: out_abi = "AltiVec"; break;
3667 case 3: out_abi = "SPE"; break;
3668 }
3669
3670 out_attr->type = 1;
3671 if (out_attr->i == 0)
3672 out_attr->i = in_attr->i;
3673 else if (in_attr->i == 0)
3674 ;
3675 /* For now, allow generic to transition to AltiVec or SPE
3676 without a warning. If GCC marked files with their stack
3677 alignment and used don't-care markings for files which are
3678 not affected by the vector ABI, we could warn about this
3679 case too. */
3680 else if (out_attr->i == 1)
3681 out_attr->i = in_attr->i;
3682 else if (in_attr->i == 1)
3683 ;
3684 else if (in_abi == NULL)
3685 _bfd_error_handler
3686 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
3687 in_attr->i);
3688 else if (out_abi == NULL)
3689 _bfd_error_handler
3690 (_("Warning: %B uses unknown vector ABI %d"), obfd,
3691 in_attr->i);
3692 else
3693 _bfd_error_handler
3694 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
3695 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM		 3696 }
3697
3698 /* Merge Tag_compatibility attributes and any common GNU ones. */
3699 _bfd_elf_merge_object_attributes (ibfd, obfd);
3700
3701 return TRUE;
3702}
3703
8853c3d3
AM		 3704/* Merge backend specific data from an object file to the output
3705 object file when linking. */
3706
3707static bfd_boolean
3708ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3709{
3710 flagword old_flags;
3711 flagword new_flags;
3712 bfd_boolean error;
3713
3714 if (!is_ppc_elf_target (ibfd->xvec)
3715 || !is_ppc_elf_target (obfd->xvec))
3716 return TRUE;
3717
3718 /* Check if we have the same endianess. */
3719 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3720 return FALSE;
3721
34c8bcba
JM		 3722 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3723 return FALSE;
3724
8853c3d3
AM		 3725 new_flags = elf_elfheader (ibfd)->e_flags;
3726 old_flags = elf_elfheader (obfd)->e_flags;
3727 if (!elf_flags_init (obfd))
3728 {
3729 /* First call, no flags set. */
3730 elf_flags_init (obfd) = TRUE;
3731 elf_elfheader (obfd)->e_flags = new_flags;
3732 }
3733
3734 /* Compatible flags are ok. */
3735 else if (new_flags == old_flags)
3736 ;
3737
3738 /* Incompatible flags. */
3739 else
3740 {
3741 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3742 to be linked with either. */
3743 error = FALSE;
3744 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3745 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3746 {
3747 error = TRUE;
3748 (*_bfd_error_handler)
3749 (_("%B: compiled with -mrelocatable and linked with "
3750 "modules compiled normally"), ibfd);
3751 }
3752 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3753 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3754 {
3755 error = TRUE;
3756 (*_bfd_error_handler)
3757 (_("%B: compiled normally and linked with "
3758 "modules compiled with -mrelocatable"), ibfd);
3759 }
3760
3761 /* The output is -mrelocatable-lib iff both the input files are. */
3762 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3763 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3764
3765 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3766 but each input file is either -mrelocatable or -mrelocatable-lib. */
3767 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3768 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3769 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3770 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3771
3772 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3773 any module uses it. */
3774 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3775
3776 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3777 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3778
3779 /* Warn about any other mismatches. */
3780 if (new_flags != old_flags)
3781 {
3782 error = TRUE;
3783 (*_bfd_error_handler)
3784 (_("%B: uses different e_flags (0x%lx) fields "
3785 "than previous modules (0x%lx)"),
3786 ibfd, (long) new_flags, (long) old_flags);
3787 }
3788
3789 if (error)
3790 {
3791 bfd_set_error (bfd_error_bad_value);
3792 return FALSE;
3793 }
3794 }
3795
3796 return TRUE;
3797}
3798\f
d7128ce4
AM		 3799/* Choose which PLT scheme to use, and set .plt flags appropriately.
3800 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
3801int
3802ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
3803 struct bfd_link_info *info,
016687f8 3804 enum ppc_elf_plt_type plt_style,
0ba07910 3805 int emit_stub_syms)
d7128ce4
AM		 3806{
3807 struct ppc_elf_link_hash_table *htab;
9d8504b1 3808 flagword flags;
d7128ce4
AM		 3809
3810 htab = ppc_elf_hash_table (info);
4a3dc543
RS		 3811
3812 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3813 {
3814 if (plt_style == PLT_OLD)
3815 htab->plt_type = PLT_OLD;
3816 else
3817 {
3818 bfd *ibfd;
3819 enum ppc_elf_plt_type plt_type = plt_style;
3820
3821 /* Look through the reloc flags left by ppc_elf_check_relocs.
3822 Use the old style bss plt if a file makes plt calls
3823 without using the new relocs, and if ld isn't given
3824 --secure-plt and we never see REL16 relocs. */
3825 if (plt_type == PLT_UNSET)
3826 plt_type = PLT_OLD;
60b31e8d 3827 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
016687f8
AM		 3828 if (is_ppc_elf_target (ibfd->xvec))
3829 {
3830 if (ppc_elf_tdata (ibfd)->has_rel16)
3831 plt_type = PLT_NEW;
3832 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
3833 {
3834 plt_type = PLT_OLD;
3835 htab->old_bfd = ibfd;
3836 break;
3837 }
3838 }
3839 htab->plt_type = plt_type;
3840 }
3841 }
3842 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
3843 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
d7128ce4 3844
0ba07910
AM		 3845 htab->emit_stub_syms = emit_stub_syms;
3846
4a3dc543 3847 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 3848
4a3dc543 3849 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 3850 {
3851 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3852 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM		 3853
3854 /* The new PLT is a loaded section. */
3855 if (htab->plt != NULL
3856 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
3857 return -1;
3858
3859 /* The new GOT is not executable. */
3860 if (htab->got != NULL
3861 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
3862 return -1;
d7128ce4
AM		 3863 }
3864 else
3865 {
3866 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM		 3867 if (htab->glink != NULL
3868 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
3869 return -1;
d7128ce4 3870 }
4a3dc543 3871 return htab->plt_type == PLT_NEW;
d7128ce4
AM		 3872}
3873\f
25dbc73a
AM		 3874/* Return the section that should be marked against GC for a given
3875 relocation. */
586119b3 3876
25dbc73a
AM		 3877static asection *
3878ppc_elf_gc_mark_hook (asection *sec,
07adf181 3879 struct bfd_link_info *info,
25dbc73a
AM		 3880 Elf_Internal_Rela *rel,
3881 struct elf_link_hash_entry *h,
3882 Elf_Internal_Sym *sym)
3883{
3884 if (h != NULL)
07adf181
AM		 3885 switch (ELF32_R_TYPE (rel->r_info))
3886 {
3887 case R_PPC_GNU_VTINHERIT:
3888 case R_PPC_GNU_VTENTRY:
3889 return NULL;
3890 }
3891
3892 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 3893}
a876ecf9 3894
25dbc73a
AM		 3895/* Update the got, plt and dynamic reloc reference counts for the
3896 section being removed. */
3897
3898static bfd_boolean
3899ppc_elf_gc_sweep_hook (bfd *abfd,
3900 struct bfd_link_info *info,
3901 asection *sec,
3902 const Elf_Internal_Rela *relocs)
3903{
3904 struct ppc_elf_link_hash_table *htab;
3905 Elf_Internal_Shdr *symtab_hdr;
3906 struct elf_link_hash_entry **sym_hashes;
3907 bfd_signed_vma *local_got_refcounts;
3908 const Elf_Internal_Rela *rel, *relend;
a6aa5195 3909 asection *got2;
25dbc73a 3910
7dda2462
TG		 3911 if (info->relocatable)
3912 return TRUE;
3913
c87b5a93
AM		 3914 if ((sec->flags & SEC_ALLOC) == 0)
3915 return TRUE;
3916
25dbc73a
AM		 3917 elf_section_data (sec)->local_dynrel = NULL;
3918
3919 htab = ppc_elf_hash_table (info);
0ffa91dd 3920 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM		 3921 sym_hashes = elf_sym_hashes (abfd);
3922 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 3923 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3924
3925 relend = relocs + sec->reloc_count;
3926 for (rel = relocs; rel < relend; rel++)
3927 {
3928 unsigned long r_symndx;
3929 enum elf_ppc_reloc_type r_type;
3930 struct elf_link_hash_entry *h = NULL;
3931
3932 r_symndx = ELF32_R_SYM (rel->r_info);
3933 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 3934 {
25dbc73a
AM		 3935 struct ppc_elf_dyn_relocs **pp, *p;
3936 struct ppc_elf_link_hash_entry *eh;
3937
3938 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3939 while (h->root.type == bfd_link_hash_indirect
3940 || h->root.type == bfd_link_hash_warning)
3941 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3942 eh = (struct ppc_elf_link_hash_entry *) h;
3943
3944 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3945 if (p->sec == sec)
3946 {
3947 /* Everything must go for SEC. */
3948 *pp = p->next;
3949 break;
3950 }
a876ecf9 3951 }
ee05f2fe 3952
25dbc73a
AM		 3953 r_type = ELF32_R_TYPE (rel->r_info);
3954 switch (r_type)
ee05f2fe 3955 {
25dbc73a
AM		 3956 case R_PPC_GOT_TLSLD16:
3957 case R_PPC_GOT_TLSLD16_LO:
3958 case R_PPC_GOT_TLSLD16_HI:
3959 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 3960 case R_PPC_GOT_TLSGD16:
3961 case R_PPC_GOT_TLSGD16_LO:
3962 case R_PPC_GOT_TLSGD16_HI:
3963 case R_PPC_GOT_TLSGD16_HA:
3964 case R_PPC_GOT_TPREL16:
3965 case R_PPC_GOT_TPREL16_LO:
3966 case R_PPC_GOT_TPREL16_HI:
3967 case R_PPC_GOT_TPREL16_HA:
3968 case R_PPC_GOT_DTPREL16:
3969 case R_PPC_GOT_DTPREL16_LO:
3970 case R_PPC_GOT_DTPREL16_HI:
3971 case R_PPC_GOT_DTPREL16_HA:
3972 case R_PPC_GOT16:
3973 case R_PPC_GOT16_LO:
3974 case R_PPC_GOT16_HI:
3975 case R_PPC_GOT16_HA:
3976 if (h != NULL)
ee05f2fe 3977 {
25dbc73a
AM		 3978 if (h->got.refcount > 0)
3979 h->got.refcount--;
ee05f2fe 3980 }
25dbc73a
AM		 3981 else if (local_got_refcounts != NULL)
3982 {
3983 if (local_got_refcounts[r_symndx] > 0)
3984 local_got_refcounts[r_symndx]--;
3985 }
3986 break;
ee05f2fe 3987
25dbc73a
AM		 3988 case R_PPC_REL24:
3989 case R_PPC_REL14:
3990 case R_PPC_REL14_BRTAKEN:
3991 case R_PPC_REL14_BRNTAKEN:
3992 case R_PPC_REL32:
3b36f7e6 3993 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM		 3994 break;
3995 /* Fall thru */
ee05f2fe 3996
25dbc73a
AM		 3997 case R_PPC_ADDR32:
3998 case R_PPC_ADDR24:
3999 case R_PPC_ADDR16:
4000 case R_PPC_ADDR16_LO:
4001 case R_PPC_ADDR16_HI:
4002 case R_PPC_ADDR16_HA:
4003 case R_PPC_ADDR14:
4004 case R_PPC_ADDR14_BRTAKEN:
4005 case R_PPC_ADDR14_BRNTAKEN:
4006 case R_PPC_UADDR32:
4007 case R_PPC_UADDR16:
87538722
AM		 4008 if (info->shared)
4009 break;
4010
25dbc73a
AM		 4011 case R_PPC_PLT32:
4012 case R_PPC_PLTREL24:
87538722 4013 case R_PPC_PLTREL32:
25dbc73a
AM		 4014 case R_PPC_PLT16_LO:
4015 case R_PPC_PLT16_HI:
4016 case R_PPC_PLT16_HA:
4017 if (h != NULL)
4018 {
a6aa5195
AM		 4019 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
4020 struct plt_entry *ent = find_plt_ent (h, got2, addend);
4021 if (ent->plt.refcount > 0)
4022 ent->plt.refcount -= 1;
25dbc73a
AM		 4023 }
4024 break;
ee05f2fe 4025
25dbc73a
AM		 4026 default:
4027 break;
4028 }
7fce784e 4029 }
7fce784e
AS		 4030 return TRUE;
4031}
25dbc73a
AM		 4032\f
4033/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7fce784e 4034
25dbc73a
AM		 4035asection *
4036ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 4037{
25dbc73a 4038 struct ppc_elf_link_hash_table *htab;
7fce784e 4039
25dbc73a 4040 htab = ppc_elf_hash_table (info);
4a3dc543 4041 if (htab->plt_type == PLT_NEW
d7128ce4
AM		 4042 && htab->plt != NULL
4043 && htab->plt->output_section != NULL)
4044 {
4045 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4046 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4047 }
4048
25dbc73a
AM		 4049 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4050 FALSE, FALSE, TRUE);
25dbc73a 4051 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS		 4052}
4053
25dbc73a
AM		 4054/* Run through all the TLS relocs looking for optimization
4055 opportunities. */
252b5132 4056
25dbc73a
AM		 4057bfd_boolean
4058ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4059 struct bfd_link_info *info)
252b5132 4060{
7fce784e 4061 bfd *ibfd;
25dbc73a
AM		 4062 asection *sec;
4063 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 4064 int pass;
252b5132 4065
25dbc73a
AM		 4066 if (info->relocatable || info->shared)
4067 return TRUE;
252b5132 4068
7619e7c7 4069 htab = ppc_elf_hash_table (info);
b7fcf6f6
AM		 4070 /* Make two passes through the relocs. First time check that tls
4071 relocs involved in setting up a tls_get_addr call are indeed
4072 followed by such a call. If they are not, exclude them from
4073 the optimizations done on the second pass. */
4074 for (pass = 0; pass < 2; ++pass)
4075 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4076 {
4077 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 4078 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7619e7c7 4079
b7fcf6f6
AM		 4080 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4081 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4082 {
4083 Elf_Internal_Rela *relstart, *rel, *relend;
252b5132 4084
b7fcf6f6
AM		 4085 /* Read the relocations. */
4086 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4087 info->keep_memory);
4088 if (relstart == NULL)
4089 return FALSE;
7619e7c7 4090
b7fcf6f6
AM		 4091 relend = relstart + sec->reloc_count;
4092 for (rel = relstart; rel < relend; rel++)
4093 {
4094 enum elf_ppc_reloc_type r_type;
4095 unsigned long r_symndx;
4096 struct elf_link_hash_entry *h = NULL;
4097 char *tls_mask;
4098 char tls_set, tls_clear;
4099 bfd_boolean is_local;
4100 int expecting_tls_get_addr;
4101 bfd_signed_vma *got_count;
4102
4103 r_symndx = ELF32_R_SYM (rel->r_info);
4104 if (r_symndx >= symtab_hdr->sh_info)
4105 {
4106 struct elf_link_hash_entry **sym_hashes;
7fce784e 4107
b7fcf6f6
AM		 4108 sym_hashes = elf_sym_hashes (ibfd);
4109 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4110 while (h->root.type == bfd_link_hash_indirect
4111 || h->root.type == bfd_link_hash_warning)
4112 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4113 }
7619e7c7 4114
b7fcf6f6
AM		 4115 expecting_tls_get_addr = 0;
4116 is_local = FALSE;
4117 if (h == NULL
4118 || !h->def_dynamic)
4119 is_local = TRUE;
7619e7c7 4120
b7fcf6f6
AM		 4121 r_type = ELF32_R_TYPE (rel->r_info);
4122 switch (r_type)
4123 {
4124 case R_PPC_GOT_TLSLD16:
4125 case R_PPC_GOT_TLSLD16_LO:
4126 expecting_tls_get_addr = 1;
4127 /* Fall thru */
4128
4129 case R_PPC_GOT_TLSLD16_HI:
4130 case R_PPC_GOT_TLSLD16_HA:
4131 /* These relocs should never be against a symbol
4132 defined in a shared lib. Leave them alone if
4133 that turns out to be the case. */
4134 if (!is_local)
4135 continue;
4136
4137 /* LD -> LE */
4138 tls_set = 0;
4139 tls_clear = TLS_LD;
4140 break;
4141
4142 case R_PPC_GOT_TLSGD16:
4143 case R_PPC_GOT_TLSGD16_LO:
4144 expecting_tls_get_addr = 1;
4145 /* Fall thru */
4146
4147 case R_PPC_GOT_TLSGD16_HI:
4148 case R_PPC_GOT_TLSGD16_HA:
4149 if (is_local)
4150 /* GD -> LE */
4151 tls_set = 0;
4152 else
4153 /* GD -> IE */
4154 tls_set = TLS_TLS | TLS_TPRELGD;
4155 tls_clear = TLS_GD;
4156 break;
4157
4158 case R_PPC_GOT_TPREL16:
4159 case R_PPC_GOT_TPREL16_LO:
4160 case R_PPC_GOT_TPREL16_HI:
4161 case R_PPC_GOT_TPREL16_HA:
4162 if (is_local)
4163 {
4164 /* IE -> LE */
4165 tls_set = 0;
4166 tls_clear = TLS_TPREL;
4167 break;
4168 }
4169 else
4170 continue;
4171
4172 default:
25dbc73a 4173 continue;
b7fcf6f6 4174 }
25dbc73a 4175
b7fcf6f6
AM		 4176 if (pass == 0)
4177 {
4178 if (!expecting_tls_get_addr)
4179 continue;
25dbc73a 4180
b7fcf6f6
AM		 4181 if (rel + 1 < relend)
4182 {
4183 enum elf_ppc_reloc_type r_type2;
4184 unsigned long r_symndx2;
4185 struct elf_link_hash_entry *h2;
4186
4187 /* The next instruction should be a call to
4188 __tls_get_addr. Peek at the reloc to be sure. */
4189 r_type2 = ELF32_R_TYPE (rel[1].r_info);
4190 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
4191 if (r_symndx2 >= symtab_hdr->sh_info
4192 && (r_type2 == R_PPC_REL14
4193 || r_type2 == R_PPC_REL14_BRTAKEN
4194 || r_type2 == R_PPC_REL14_BRNTAKEN
4195 || r_type2 == R_PPC_REL24
4196 || r_type2 == R_PPC_PLTREL24))
4197 {
4198 struct elf_link_hash_entry **sym_hashes;
4199
4200 sym_hashes = elf_sym_hashes (ibfd);
4201 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
4202 while (h2->root.type == bfd_link_hash_indirect
4203 || h2->root.type == bfd_link_hash_warning)
4204 h2 = ((struct elf_link_hash_entry *)
4205 h2->root.u.i.link);
4206 if (h2 == htab->tls_get_addr)
4207 continue;
4208 }
4209 }
25dbc73a 4210
b7fcf6f6
AM		 4211 /* Uh oh, we didn't find the expected call. We
4212 could just mark this symbol to exclude it
4213 from tls optimization but it's safer to skip
4214 the entire section. */
4215 sec->has_tls_reloc = 0;
4216 break;
4217 }
25dbc73a 4218
b7fcf6f6
AM		 4219 if (h != NULL)
4220 {
4221 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4222 got_count = &h->got.refcount;
4223 }
4224 else
4225 {
4226 Elf_Internal_Sym *sym;
4227 bfd_signed_vma *lgot_refs;
4228 char *lgot_masks;
25dbc73a 4229
b7fcf6f6
AM		 4230 if (locsyms == NULL)
4231 {
4232 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4233 if (locsyms == NULL)
4234 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4235 symtab_hdr->sh_info,
4236 0, NULL, NULL, NULL);
4237 if (locsyms == NULL)
4238 {
4239 if (elf_section_data (sec)->relocs != relstart)
4240 free (relstart);
4241 return FALSE;
4242 }
4243 }
4244 sym = locsyms + r_symndx;
4245 lgot_refs = elf_local_got_refcounts (ibfd);
4246 if (lgot_refs == NULL)
4247 abort ();
4248 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4249 tls_mask = &lgot_masks[r_symndx];
4250 got_count = &lgot_refs[r_symndx];
4251 }
25dbc73a 4252
b7fcf6f6
AM		 4253 if (tls_set == 0)
4254 {
4255 /* We managed to get rid of a got entry. */
4256 if (*got_count > 0)
4257 *got_count -= 1;
4258 }
25dbc73a 4259
b7fcf6f6
AM		 4260 if (expecting_tls_get_addr)
4261 {
4262 struct plt_entry *ent;
25dbc73a 4263
b7fcf6f6
AM		 4264 ent = find_plt_ent (htab->tls_get_addr, NULL, 0);
4265 if (ent != NULL && ent->plt.refcount > 0)
4266 ent->plt.refcount -= 1;
4267 }
25dbc73a 4268
b7fcf6f6
AM		 4269 *tls_mask |= tls_set;
4270 *tls_mask &= ~tls_clear;
4271 }
25dbc73a 4272
b7fcf6f6
AM		 4273 if (elf_section_data (sec)->relocs != relstart)
4274 free (relstart);
4275 }
4276
4277 if (locsyms != NULL
4278 && (symtab_hdr->contents != (unsigned char *) locsyms))
4279 {
4280 if (!info->keep_memory)
4281 free (locsyms);
4282 else
4283 symtab_hdr->contents = (unsigned char *) locsyms;
4284 }
4285 }
25dbc73a
AM		 4286 return TRUE;
4287}
4288\f
4289/* Adjust a symbol defined by a dynamic object and referenced by a
4290 regular object. The current definition is in some section of the
4291 dynamic object, but we're not including those sections. We have to
4292 change the definition to something the rest of the link can
4293 understand. */
7fce784e 4294
25dbc73a
AM		 4295static bfd_boolean
4296ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4297 struct elf_link_hash_entry *h)
4298{
4299 struct ppc_elf_link_hash_table *htab;
4300 asection *s;
7fce784e 4301
25dbc73a
AM		 4302#ifdef DEBUG
4303 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4304 h->root.root.string);
4305#endif
252b5132 4306
25dbc73a
AM		 4307 /* Make sure we know what is going on here. */
4308 htab = ppc_elf_hash_table (info);
4309 BFD_ASSERT (htab->elf.dynobj != NULL
4310 && (h->needs_plt
4311 || h->u.weakdef != NULL
4312 || (h->def_dynamic
4313 && h->ref_regular
4314 && !h->def_regular)));
252b5132 4315
25dbc73a
AM		 4316 /* Deal with function syms. */
4317 if (h->type == STT_FUNC
4318 || h->needs_plt)
4319 {
4320 /* Clear procedure linkage table information for any symbol that
4321 won't need a .plt entry. */
a6aa5195
AM		 4322 struct plt_entry *ent;
4323 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4324 if (ent->plt.refcount > 0)
4325 break;
4326 if (ent == NULL
25dbc73a
AM		 4327 || SYMBOL_CALLS_LOCAL (info, h)
4328 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4329 && h->root.type == bfd_link_hash_undefweak))
252b5132 4330 {
25dbc73a 4331 /* A PLT entry is not required/allowed when:
252b5132 4332
25dbc73a
AM		 4333 1. We are not using ld.so; because then the PLT entry
4334 can't be set up, so we can't use one. In this case,
4335 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4336
25dbc73a
AM		 4337 2. GC has rendered the entry unused.
4338
4339 3. We know for certain that a call to this symbol
4340 will go to this object, or will remain undefined. */
a6aa5195 4341 h->plt.plist = NULL;
25dbc73a
AM		 4342 h->needs_plt = 0;
4343 }
4344 return TRUE;
252b5132 4345 }
25dbc73a 4346 else
a6aa5195 4347 h->plt.plist = NULL;
252b5132 4348
25dbc73a
AM		 4349 /* If this is a weak symbol, and there is a real definition, the
4350 processor independent code will have arranged for us to see the
4351 real definition first, and we can just use the same value. */
4352 if (h->u.weakdef != NULL)
252b5132 4353 {
25dbc73a
AM		 4354 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4355 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4356 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4357 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4358 if (ELIMINATE_COPY_RELOCS)
4359 h->non_got_ref = h->u.weakdef->non_got_ref;
4360 return TRUE;
4361 }
dc810e39 4362
25dbc73a
AM		 4363 /* This is a reference to a symbol defined by a dynamic object which
4364 is not a function. */
252b5132 4365
25dbc73a
AM		 4366 /* If we are creating a shared library, we must presume that the
4367 only references to the symbol are via the global offset table.
4368 For such cases we need not do anything here; the relocations will
4369 be handled correctly by relocate_section. */
4370 if (info->shared)
4371 return TRUE;
252b5132 4372
25dbc73a
AM		 4373 /* If there are no references to this symbol that do not use the
4374 GOT, we don't need to generate a copy reloc. */
4375 if (!h->non_got_ref)
4376 return TRUE;
4377
cfd2c773
NS		 4378 /* If we didn't find any dynamic relocs in read-only sections, then
4379 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4380 We can't do this if there are any small data relocations. This
4381 doesn't work on VxWorks, where we can not have dynamic
4382 relocations (other than copy and jump slot relocations) in an
4383 executable. */
4dc4a9a5 4384 if (ELIMINATE_COPY_RELOCS
cfd2c773
NS		 4385 && !ppc_elf_hash_entry (h)->has_sda_refs
4386 && !htab->is_vxworks)
25dbc73a
AM		 4387 {
4388 struct ppc_elf_dyn_relocs *p;
4389 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
252b5132 4390 {
25dbc73a
AM		 4391 s = p->sec->output_section;
4392 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4393 break;
252b5132
RH		 4394 }
4395
25dbc73a 4396 if (p == NULL)
252b5132 4397 {
25dbc73a
AM		 4398 h->non_got_ref = 0;
4399 return TRUE;
252b5132
RH		 4400 }
4401 }
4402
909272ee
AM		 4403 if (h->size == 0)
4404 {
4405 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4406 h->root.root.string);
4407 return TRUE;
4408 }
4409
25dbc73a
AM		 4410 /* We must allocate the symbol in our .dynbss section, which will
4411 become part of the .bss section of the executable. There will be
4412 an entry for this symbol in the .dynsym section. The dynamic
4413 object will contain position independent code, so all references
4414 from the dynamic object to this symbol will go through the global
4415 offset table. The dynamic linker will use the .dynsym entry to
4416 determine the address it must put in the global offset table, so
4417 both the dynamic object and the regular object will refer to the
4418 same memory location for the variable.
4419
4dc4a9a5
DJ		 4420 Of course, if the symbol is referenced using SDAREL relocs, we
4421 must instead allocate it in .sbss. */
25dbc73a 4422
4dc4a9a5 4423 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4424 s = htab->dynsbss;
4425 else
4426 s = htab->dynbss;
4427 BFD_ASSERT (s != NULL);
4428
4429 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4430 copy the initial value out of the dynamic object and into the
4431 runtime process image. We need to remember the offset into the
4432 .rela.bss section we are going to use. */
4433 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4434 {
4435 asection *srel;
4436
4dc4a9a5 4437 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4438 srel = htab->relsbss;
4439 else
4440 srel = htab->relbss;
4441 BFD_ASSERT (srel != NULL);
4442 srel->size += sizeof (Elf32_External_Rela);
4443 h->needs_copy = 1;
4444 }
7619e7c7 4445
027297b7 4446 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM		 4447}
4448\f
ac39eb42
AM		 4449/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4450 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4451 specifying the addend on the plt relocation. For -fpic code, the sym
4452 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4453 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM		 4454
4455static bfd_boolean
4456add_stub_sym (struct plt_entry *ent,
4457 struct elf_link_hash_entry *h,
ac39eb42 4458 struct bfd_link_info *info)
0ba07910
AM		 4459{
4460 struct elf_link_hash_entry *sh;
4461 size_t len1, len2, len3;
4462 char *name;
ac39eb42
AM		 4463 const char *stub;
4464 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4465
4466 if (info->shared || info->pie)
4467 stub = ".plt_pic32.";
4468 else
4469 stub = ".plt_call32.";
0ba07910
AM		 4470
4471 len1 = strlen (h->root.root.string);
ac39eb42 4472 len2 = strlen (stub);
0ba07910
AM		 4473 len3 = 0;
4474 if (ent->sec)
4475 len3 = strlen (ent->sec->name);
ac39eb42 4476 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM		 4477 if (name == NULL)
4478 return FALSE;
4479 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4480 if (ent->sec)
4481 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM		 4482 memcpy (name + 8 + len3, stub, len2);
4483 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM		 4484 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4485 if (sh == NULL)
4486 return FALSE;
4487 if (sh->root.type == bfd_link_hash_new)
4488 {
4489 sh->root.type = bfd_link_hash_defined;
4490 sh->root.u.def.section = htab->glink;
4491 sh->root.u.def.value = ent->glink_offset;
4492 sh->ref_regular = 1;
4493 sh->def_regular = 1;
4494 sh->ref_regular_nonweak = 1;
4495 sh->forced_local = 1;
4496 sh->non_elf = 0;
4497 }
4498 return TRUE;
4499}
4500
3b36f7e6
AM		 4501/* Allocate NEED contiguous space in .got, and return the offset.
4502 Handles allocation of the got header when crossing 32k. */
4503
4504static bfd_vma
4505allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4506{
4507 bfd_vma where;
4a3dc543 4508 unsigned int max_before_header;
3b36f7e6 4509
4a3dc543 4510 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4511 {
4512 where = htab->got->size;
4513 htab->got->size += need;
4514 }
3b36f7e6
AM		 4515 else
4516 {
4a3dc543
RS		 4517 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4518 if (need <= htab->got_gap)
3b36f7e6 4519 {
4a3dc543
RS		 4520 where = max_before_header - htab->got_gap;
4521 htab->got_gap -= need;
4522 }
4523 else
4524 {
4525 if (htab->got->size + need > max_before_header
4526 && htab->got->size <= max_before_header)
4527 {
4528 htab->got_gap = max_before_header - htab->got->size;
4529 htab->got->size = max_before_header + htab->got_header_size;
4530 }
4531 where = htab->got->size;
4532 htab->got->size += need;
3b36f7e6 4533 }
3b36f7e6
AM		 4534 }
4535 return where;
4536}
4537
25dbc73a 4538/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 4539
b34976b6 4540static bfd_boolean
25dbc73a 4541allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 4542{
25dbc73a
AM		 4543 struct bfd_link_info *info = inf;
4544 struct ppc_elf_link_hash_entry *eh;
7619e7c7 4545 struct ppc_elf_link_hash_table *htab;
25dbc73a 4546 struct ppc_elf_dyn_relocs *p;
252b5132 4547
25dbc73a 4548 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4549 return TRUE;
252b5132 4550
25dbc73a
AM		 4551 if (h->root.type == bfd_link_hash_warning)
4552 /* When warning symbols are created, they **replace** the "real"
4553 entry in the hash table, thus we never get to see the real
4554 symbol in a hash traversal. So look at it now. */
4555 h = (struct elf_link_hash_entry *) h->root.u.i.link;
e47cd125 4556
7619e7c7 4557 htab = ppc_elf_hash_table (info);
a6aa5195 4558 if (htab->elf.dynamic_sections_created)
252b5132 4559 {
a6aa5195
AM		 4560 struct plt_entry *ent;
4561 bfd_boolean doneone = FALSE;
28e99bb6
AM		 4562 bfd_vma plt_offset = 0, glink_offset = 0;
4563
a6aa5195
AM		 4564 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4565 if (ent->plt.refcount > 0)
4566 {
4567 /* Make sure this symbol is output as a dynamic symbol. */
4568 if (h->dynindx == -1
4569 && !h->forced_local)
4570 {
4571 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4572 return FALSE;
4573 }
252b5132 4574
a6aa5195
AM		 4575 if (info->shared
4576 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4577 {
4578 asection *s = htab->plt;
7619e7c7 4579
4a3dc543 4580 if (htab->plt_type == PLT_NEW)
a6aa5195 4581 {
a6aa5195 4582 if (!doneone)
28e99bb6
AM		 4583 {
4584 plt_offset = s->size;
4585 s->size += 4;
4586 }
4587 ent->plt.offset = plt_offset;
d7128ce4 4588
a6aa5195 4589 s = htab->glink;
28e99bb6
AM		 4590 if (!doneone || info->shared || info->pie)
4591 {
4592 glink_offset = s->size;
4593 s->size += GLINK_ENTRY_SIZE;
4594 }
4595 if (!doneone
4596 && !info->shared
a6aa5195
AM		 4597 && !h->def_regular)
4598 {
4599 h->root.u.def.section = s;
28e99bb6 4600 h->root.u.def.value = glink_offset;
a6aa5195 4601 }
28e99bb6 4602 ent->glink_offset = glink_offset;
0ba07910
AM		 4603
4604 if (htab->emit_stub_syms
ac39eb42 4605 && !add_stub_sym (ent, h, info))
0ba07910 4606 return FALSE;
a6aa5195
AM		 4607 }
4608 else
4609 {
a6aa5195
AM		 4610 if (!doneone)
4611 {
28e99bb6
AM		 4612 /* If this is the first .plt entry, make room
4613 for the special first entry. */
4614 if (s->size == 0)
9d8504b1 4615 s->size += htab->plt_initial_entry_size;
28e99bb6
AM		 4616
4617 /* The PowerPC PLT is actually composed of two
4618 parts, the first part is 2 words (for a load
4619 and a jump), and then there is a remaining
4620 word available at the end. */
9d8504b1
PB		 4621 plt_offset = (htab->plt_initial_entry_size
4622 + (htab->plt_slot_size
4623 * ((s->size
4624 - htab->plt_initial_entry_size)
4625 / htab->plt_entry_size)));
28e99bb6
AM		 4626
4627 /* If this symbol is not defined in a regular
4628 file, and we are not generating a shared
4629 library, then set the symbol to this location
4630 in the .plt. This is required to make
4631 function pointers compare as equal between
4632 the normal executable and the shared library. */
4633 if (! info->shared
4634 && !h->def_regular)
4635 {
4636 h->root.u.def.section = s;
4637 h->root.u.def.value = plt_offset;
4638 }
4639
9d8504b1
PB		 4640 /* Make room for this entry. */
4641 s->size += htab->plt_entry_size;
4642 /* After the 8192nd entry, room for two entries
4643 is allocated. */
4a3dc543 4644 if (htab->plt_type == PLT_OLD
9d8504b1
PB		 4645 && (s->size - htab->plt_initial_entry_size)
4646 / htab->plt_entry_size
4647 > PLT_NUM_SINGLE_ENTRIES)
4648 s->size += htab->plt_entry_size;
a6aa5195 4649 }
28e99bb6 4650 ent->plt.offset = plt_offset;
a6aa5195 4651 }
25dbc73a 4652
a6aa5195
AM		 4653 /* We also need to make an entry in the .rela.plt section. */
4654 if (!doneone)
4655 {
4656 htab->relplt->size += sizeof (Elf32_External_Rela);
9d8504b1 4657
4a3dc543 4658 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4659 {
4660 /* Allocate space for the unloaded relocations. */
4661 if (!info->shared)
4662 {
4663 if (ent->plt.offset
4664 == (bfd_vma) htab->plt_initial_entry_size)
4665 {
4666 htab->srelplt2->size
4667 += sizeof (Elf32_External_Rela)
4668 * VXWORKS_PLTRESOLVE_RELOCS;
4669 }
4670
4671 htab->srelplt2->size
4672 += sizeof (Elf32_External_Rela)
4673 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4674 }
4675
4676 /* Every PLT entry has an associated GOT entry in
4677 .got.plt. */
4678 htab->sgotplt->size += 4;
4679 }
a6aa5195
AM		 4680 doneone = TRUE;
4681 }
4682 }
4683 else
4684 ent->plt.offset = (bfd_vma) -1;
a6aa5195 4685 }
2ce859a1
AM		 4686 else
4687 ent->plt.offset = (bfd_vma) -1;
4688
4689 if (!doneone)
4690 {
4691 h->plt.plist = NULL;
4692 h->needs_plt = 0;
4693 }
25dbc73a
AM		 4694 }
4695 else
4696 {
a6aa5195 4697 h->plt.plist = NULL;
25dbc73a
AM		 4698 h->needs_plt = 0;
4699 }
4700
4701 eh = (struct ppc_elf_link_hash_entry *) h;
4702 if (eh->elf.got.refcount > 0)
4703 {
4704 /* Make sure this symbol is output as a dynamic symbol. */
4705 if (eh->elf.dynindx == -1
4706 && !eh->elf.forced_local)
4707 {
4708 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 4709 return FALSE;
25dbc73a 4710 }
252b5132 4711
25dbc73a
AM		 4712 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4713 && !eh->elf.def_dynamic)
b7fcf6f6
AM		 4714 {
4715 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4716 htab->tlsld_got.refcount += 1;
4717 eh->elf.got.offset = (bfd_vma) -1;
4718 }
25dbc73a
AM		 4719 else
4720 {
4721 bfd_boolean dyn;
3b36f7e6 4722 unsigned int need = 0;
25dbc73a 4723 if ((eh->tls_mask & TLS_TLS) != 0)
252b5132 4724 {
25dbc73a 4725 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6 4726 need += 8;
25dbc73a 4727 if ((eh->tls_mask & TLS_GD) != 0)
3b36f7e6 4728 need += 8;
25dbc73a 4729 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4730 need += 4;
25dbc73a 4731 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 4732 need += 4;
252b5132 4733 }
25dbc73a 4734 else
3b36f7e6
AM		 4735 need += 4;
4736 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM		 4737 dyn = htab->elf.dynamic_sections_created;
4738 if ((info->shared
4739 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4740 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4741 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 4742 {
3b36f7e6
AM		 4743 /* All the entries we allocated need relocs.
4744 Except LD only needs one. */
25dbc73a 4745 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6
AM		 4746 need -= 4;
4747 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 4748 }
25dbc73a
AM		 4749 }
4750 }
4751 else
4752 eh->elf.got.offset = (bfd_vma) -1;
252b5132 4753
25dbc73a
AM		 4754 if (eh->dyn_relocs == NULL)
4755 return TRUE;
252b5132 4756
25dbc73a
AM		 4757 /* In the shared -Bsymbolic case, discard space allocated for
4758 dynamic pc-relative relocs against symbols which turn out to be
4759 defined in regular objects. For the normal shared case, discard
4760 space for relocs that have become local due to symbol visibility
4761 changes. */
4762
4763 if (info->shared)
4764 {
4765 /* Relocs that use pc_count are those that appear on a call insn,
4766 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
4767 generated via assembly. We want calls to protected symbols to
4768 resolve directly to the function rather than going via the plt.
4769 If people want function pointer comparisons to work as expected
4770 then they should avoid writing weird assembly. */
4771 if (SYMBOL_CALLS_LOCAL (info, h))
4772 {
4773 struct ppc_elf_dyn_relocs **pp;
4774
4775 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 4776 {
25dbc73a
AM		 4777 p->count -= p->pc_count;
4778 p->pc_count = 0;
4779 if (p->count == 0)
4780 *pp = p->next;
4781 else
4782 pp = &p->next;
252b5132 4783 }
25dbc73a 4784 }
252b5132 4785
25dbc73a
AM		 4786 /* Also discard relocs on undefined weak syms with non-default
4787 visibility. */
cab87ef9
AM		 4788 if (eh->dyn_relocs != NULL
4789 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 4790 {
dfbb6ac9
AM		 4791 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4792 eh->dyn_relocs = NULL;
4793
4794 /* Make sure undefined weak symbols are output as a dynamic
4795 symbol in PIEs. */
4796 else if (h->dynindx == -1
4797 && !h->forced_local)
4798 {
4799 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4800 return FALSE;
4801 }
25dbc73a
AM		 4802 }
4803 }
4804 else if (ELIMINATE_COPY_RELOCS)
4805 {
4806 /* For the non-shared case, discard space for relocs against
4807 symbols which turn out to need copy relocs or are not
4808 dynamic. */
7619e7c7 4809
25dbc73a
AM		 4810 if (!h->non_got_ref
4811 && h->def_dynamic
4812 && !h->def_regular)
4813 {
4814 /* Make sure this symbol is output as a dynamic symbol.
4815 Undefined weak syms won't yet be marked as dynamic. */
4816 if (h->dynindx == -1
4817 && !h->forced_local)
4818 {
4819 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4820 return FALSE;
4821 }
7619e7c7 4822
25dbc73a
AM		 4823 /* If that succeeded, we know we'll be keeping all the
4824 relocs. */
4825 if (h->dynindx != -1)
4826 goto keep;
4827 }
252b5132 4828
25dbc73a 4829 eh->dyn_relocs = NULL;
252b5132 4830
25dbc73a
AM		 4831 keep: ;
4832 }
252b5132 4833
25dbc73a
AM		 4834 /* Finally, allocate space. */
4835 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4836 {
4837 asection *sreloc = elf_section_data (p->sec)->sreloc;
4838 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4839 }
252b5132 4840
25dbc73a
AM		 4841 return TRUE;
4842}
7619e7c7 4843
25dbc73a 4844/* Find any dynamic relocs that apply to read-only sections. */
7619e7c7 4845
25dbc73a
AM		 4846static bfd_boolean
4847readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
4848{
4849 struct ppc_elf_dyn_relocs *p;
7619e7c7 4850
25dbc73a
AM		 4851 if (h->root.type == bfd_link_hash_indirect)
4852 return TRUE;
252b5132 4853
25dbc73a
AM		 4854 if (h->root.type == bfd_link_hash_warning)
4855 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 4856
25dbc73a
AM		 4857 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4858 {
4859 asection *s = p->sec->output_section;
ee05f2fe 4860
25dbc73a
AM		 4861 if (s != NULL
4862 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4863 == (SEC_READONLY | SEC_ALLOC)))
4864 {
4865 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 4866
25dbc73a
AM		 4867 /* Not an error, just cut short the traversal. */
4868 return FALSE;
4869 }
4870 }
4871 return TRUE;
4872}
4873
4874/* Set the sizes of the dynamic sections. */
4875
4876static bfd_boolean
4877ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4878 struct bfd_link_info *info)
4879{
4880 struct ppc_elf_link_hash_table *htab;
4881 asection *s;
4882 bfd_boolean relocs;
4883 bfd *ibfd;
7fce784e 4884
252b5132 4885#ifdef DEBUG
25dbc73a 4886 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 4887#endif
252b5132 4888
25dbc73a
AM		 4889 htab = ppc_elf_hash_table (info);
4890 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 4891
25dbc73a
AM		 4892 if (elf_hash_table (info)->dynamic_sections_created)
4893 {
4894 /* Set the contents of the .interp section to the interpreter. */
4895 if (info->executable)
4896 {
4897 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
4898 BFD_ASSERT (s != NULL);
4899 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4900 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4901 }
4902 }
252b5132 4903
4a3dc543 4904 if (htab->plt_type == PLT_OLD)
d7128ce4 4905 htab->got_header_size = 16;
4a3dc543 4906 else if (htab->plt_type == PLT_NEW)
d7128ce4 4907 htab->got_header_size = 12;
252b5132 4908
25dbc73a
AM		 4909 /* Set up .got offsets for local syms, and space for local dynamic
4910 relocs. */
4911 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4912 {
4913 bfd_signed_vma *local_got;
4914 bfd_signed_vma *end_local_got;
4915 char *lgot_masks;
4916 bfd_size_type locsymcount;
4917 Elf_Internal_Shdr *symtab_hdr;
7fce784e 4918
d2663f46 4919 if (!is_ppc_elf_target (ibfd->xvec))
25dbc73a 4920 continue;
7fce784e 4921
25dbc73a
AM		 4922 for (s = ibfd->sections; s != NULL; s = s->next)
4923 {
4924 struct ppc_elf_dyn_relocs *p;
252b5132 4925
25dbc73a
AM		 4926 for (p = ((struct ppc_elf_dyn_relocs *)
4927 elf_section_data (s)->local_dynrel);
4928 p != NULL;
4929 p = p->next)
4930 {
4931 if (!bfd_is_abs_section (p->sec)
4932 && bfd_is_abs_section (p->sec->output_section))
4933 {
4934 /* Input section has been discarded, either because
4935 it is a copy of a linkonce section or due to
4936 linker script /DISCARD/, so we'll be discarding
4937 the relocs too. */
7fce784e 4938 }
25dbc73a 4939 else if (p->count != 0)
7fce784e 4940 {
25dbc73a
AM		 4941 elf_section_data (p->sec)->sreloc->size
4942 += p->count * sizeof (Elf32_External_Rela);
4943 if ((p->sec->output_section->flags
4944 & (SEC_READONLY | SEC_ALLOC))
4945 == (SEC_READONLY | SEC_ALLOC))
4946 info->flags |= DF_TEXTREL;
7fce784e 4947 }
252b5132 4948 }
252b5132 4949 }
252b5132 4950
25dbc73a
AM		 4951 local_got = elf_local_got_refcounts (ibfd);
4952 if (!local_got)
4953 continue;
252b5132 4954
0ffa91dd 4955 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM		 4956 locsymcount = symtab_hdr->sh_info;
4957 end_local_got = local_got + locsymcount;
4958 lgot_masks = (char *) end_local_got;
25dbc73a
AM		 4959 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
4960 if (*local_got > 0)
4961 {
4962 if (*lgot_masks == (TLS_TLS | TLS_LD))
4963 {
4964 /* If just an LD reloc, we'll just use
4965 htab->tlsld_got.offset. */
3b36f7e6 4966 htab->tlsld_got.refcount += 1;
25dbc73a
AM		 4967 *local_got = (bfd_vma) -1;
4968 }
4969 else
4970 {
3b36f7e6 4971 unsigned int need = 0;
25dbc73a
AM		 4972 if ((*lgot_masks & TLS_TLS) != 0)
4973 {
4974 if ((*lgot_masks & TLS_GD) != 0)
3b36f7e6 4975 need += 8;
25dbc73a 4976 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4977 need += 4;
25dbc73a 4978 if ((*lgot_masks & TLS_DTPREL) != 0)
3b36f7e6 4979 need += 4;
25dbc73a
AM		 4980 }
4981 else
3b36f7e6
AM		 4982 need += 4;
4983 *local_got = allocate_got (htab, need);
25dbc73a 4984 if (info->shared)
3b36f7e6
AM		 4985 htab->relgot->size += (need
4986 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM		 4987 }
4988 }
4989 else
4990 *local_got = (bfd_vma) -1;
4991 }
252b5132 4992
b7fcf6f6
AM		 4993 /* Allocate space for global sym dynamic relocs. */
4994 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
4995
3b36f7e6
AM		 4996 if (htab->tlsld_got.refcount > 0)
4997 {
4998 htab->tlsld_got.offset = allocate_got (htab, 8);
4999 if (info->shared)
5000 htab->relgot->size += sizeof (Elf32_External_Rela);
5001 }
5002 else
5003 htab->tlsld_got.offset = (bfd_vma) -1;
5004
4a3dc543 5005 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM		 5006 {
5007 unsigned int g_o_t = 32768;
5008
4d962050
AM		 5009 /* If we haven't allocated the header, do so now. When we get here,
5010 for old plt/got the got size will be 0 to 32764 (not allocated),
5011 or 32780 to 65536 (header allocated). For new plt/got, the
5012 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM		 5013 if (htab->got->size <= 32768)
5014 {
5015 g_o_t = htab->got->size;
4a3dc543 5016 if (htab->plt_type == PLT_OLD)
4d962050 5017 g_o_t += 4;
3b36f7e6
AM		 5018 htab->got->size += htab->got_header_size;
5019 }
3b36f7e6
AM		 5020
5021 htab->elf.hgot->root.u.def.value = g_o_t;
5022 }
5023
d7128ce4
AM		 5024 if (htab->glink != NULL && htab->glink->size != 0)
5025 {
5026 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM		 5027 /* Space for the branch table. */
5028 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
5029 /* Pad out to align the start of PLTresolve. */
5030 htab->glink->size += -htab->glink->size & 15;
d7128ce4 5031 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM		 5032
5033 if (htab->emit_stub_syms)
5034 {
5035 struct elf_link_hash_entry *sh;
5036 sh = elf_link_hash_lookup (&htab->elf, "__glink",
5037 TRUE, FALSE, FALSE);
5038 if (sh == NULL)
5039 return FALSE;
5040 if (sh->root.type == bfd_link_hash_new)
5041 {
5042 sh->root.type = bfd_link_hash_defined;
5043 sh->root.u.def.section = htab->glink;
5044 sh->root.u.def.value = htab->glink_pltresolve;
5045 sh->ref_regular = 1;
5046 sh->def_regular = 1;
5047 sh->ref_regular_nonweak = 1;
5048 sh->forced_local = 1;
5049 sh->non_elf = 0;
5050 }
5051 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5052 TRUE, FALSE, FALSE);
5053 if (sh == NULL)
5054 return FALSE;
5055 if (sh->root.type == bfd_link_hash_new)
5056 {
5057 sh->root.type = bfd_link_hash_defined;
5058 sh->root.u.def.section = htab->glink;
5059 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5060 sh->ref_regular = 1;
5061 sh->def_regular = 1;
5062 sh->ref_regular_nonweak = 1;
5063 sh->forced_local = 1;
5064 sh->non_elf = 0;
5065 }
5066 }
d7128ce4
AM		 5067 }
5068
25dbc73a
AM		 5069 /* We've now determined the sizes of the various dynamic sections.
5070 Allocate memory for them. */
5071 relocs = FALSE;
5072 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 5073 {
9d8504b1
PB		 5074 bfd_boolean strip_section = TRUE;
5075
25dbc73a
AM		 5076 if ((s->flags & SEC_LINKER_CREATED) == 0)
5077 continue;
252b5132 5078
25dbc73a 5079 if (s == htab->plt
d7128ce4 5080 || s == htab->glink
644285ef 5081 || s == htab->got
9d8504b1 5082 || s == htab->sgotplt
c456f082
AM		 5083 || s == htab->sbss
5084 || s == htab->dynbss
5085 || s == htab->dynsbss)
25dbc73a 5086 {
9d8504b1
PB		 5087 /* We'd like to strip these sections if they aren't needed, but if
5088 we've exported dynamic symbols from them we must leave them.
5089 It's too late to tell BFD to get rid of the symbols. */
7325306f 5090 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
9d8504b1 5091 strip_section = FALSE;
25dbc73a
AM		 5092 /* Strip this section if we don't need it; see the
5093 comment below. */
5094 }
c9a2f333
AM		 5095 else if (s == htab->sdata[0].section
5096 || s == htab->sdata[1].section)
25dbc73a 5097 {
c9a2f333 5098 /* Strip these too. */
25dbc73a 5099 }
0112cd26 5100 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
25dbc73a 5101 {
c456f082 5102 if (s->size != 0)
25dbc73a
AM		 5103 {
5104 /* Remember whether there are any relocation sections. */
5105 relocs = TRUE;
252b5132 5106
25dbc73a
AM		 5107 /* We use the reloc_count field as a counter if we need
5108 to copy relocs into the output file. */
5109 s->reloc_count = 0;
252b5132
RH		 5110 }
5111 }
25dbc73a
AM		 5112 else
5113 {
5114 /* It's not one of our sections, so don't allocate space. */
5115 continue;
5116 }
252b5132 5117
9d8504b1 5118 if (s->size == 0 && strip_section)
25dbc73a 5119 {
c456f082
AM		 5120 /* If we don't need this section, strip it from the
5121 output file. This is mostly to handle .rela.bss and
5122 .rela.plt. We must create both sections in
5123 create_dynamic_sections, because they must be created
5124 before the linker maps input sections to output
5125 sections. The linker does that before
5126 adjust_dynamic_symbol is called, and it is that
5127 function which decides whether anything needs to go
5128 into these sections. */
8423293d 5129 s->flags |= SEC_EXCLUDE;
25dbc73a
AM		 5130 continue;
5131 }
7fce784e 5132
d7128ce4 5133 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM		 5134 continue;
5135
25dbc73a
AM		 5136 /* Allocate memory for the section contents. */
5137 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5138 if (s->contents == NULL)
5139 return FALSE;
5140 }
252b5132 5141
25dbc73a 5142 if (htab->elf.dynamic_sections_created)
7619e7c7 5143 {
25dbc73a
AM		 5144 /* Add some entries to the .dynamic section. We fill in the
5145 values later, in ppc_elf_finish_dynamic_sections, but we
5146 must add the entries now so that we get the correct size for
5147 the .dynamic section. The DT_DEBUG entry is filled in by the
5148 dynamic linker and used by the debugger. */
5149#define add_dynamic_entry(TAG, VAL) \
5150 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 5151
25dbc73a 5152 if (info->executable)
7619e7c7 5153 {
25dbc73a
AM		 5154 if (!add_dynamic_entry (DT_DEBUG, 0))
5155 return FALSE;
7619e7c7
AM		 5156 }
5157
25dbc73a 5158 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 5159 {
25dbc73a
AM		 5160 if (!add_dynamic_entry (DT_PLTGOT, 0)
5161 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5162 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5163 || !add_dynamic_entry (DT_JMPREL, 0))
5164 return FALSE;
5165 }
7619e7c7 5166
d7128ce4
AM		 5167 if (htab->glink != NULL && htab->glink->size != 0)
5168 {
1fe44d79 5169 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4
AM		 5170 return FALSE;
5171 }
5172
25dbc73a
AM		 5173 if (relocs)
5174 {
5175 if (!add_dynamic_entry (DT_RELA, 0)
5176 || !add_dynamic_entry (DT_RELASZ, 0)
5177 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5178 return FALSE;
5179 }
7619e7c7 5180
25dbc73a
AM		 5181 /* If any dynamic relocs apply to a read-only section, then we
5182 need a DT_TEXTREL entry. */
5183 if ((info->flags & DF_TEXTREL) == 0)
5184 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
5185 info);
7619e7c7 5186
25dbc73a
AM		 5187 if ((info->flags & DF_TEXTREL) != 0)
5188 {
5189 if (!add_dynamic_entry (DT_TEXTREL, 0))
5190 return FALSE;
7619e7c7 5191 }
7a2b07ff
NS		 5192 if (htab->is_vxworks
5193 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
5194 return FALSE;
5195 }
25dbc73a
AM		 5196#undef add_dynamic_entry
5197
7619e7c7
AM		 5198 return TRUE;
5199}
25dbc73a
AM		 5200\f
5201#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5202
5203static const int shared_stub_entry[] =
5204 {
5205 0x7c0802a6, /* mflr 0 */
5206 0x429f0005, /* bcl 20, 31, .Lxxx */
5207 0x7d6802a6, /* mflr 11 */
5208 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5209 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5210 0x7c0803a6, /* mtlr 0 */
5211 0x7d6903a6, /* mtctr 11 */
5212 0x4e800420, /* bctr */
5213 };
5214
5215static const int stub_entry[] =
5216 {
5217 0x3d600000, /* lis 11,xxx@ha */
5218 0x396b0000, /* addi 11,11,xxx@l */
5219 0x7d6903a6, /* mtctr 11 */
5220 0x4e800420, /* bctr */
5221 };
5222
5223static bfd_boolean
5224ppc_elf_relax_section (bfd *abfd,
5225 asection *isec,
5226 struct bfd_link_info *link_info,
5227 bfd_boolean *again)
5228{
5229 struct one_fixup
5230 {
5231 struct one_fixup *next;
5232 asection *tsec;
5233 bfd_vma toff;
5234 bfd_vma trampoff;
5235 };
7619e7c7 5236
25dbc73a
AM		 5237 Elf_Internal_Shdr *symtab_hdr;
5238 bfd_byte *contents = NULL;
5239 Elf_Internal_Sym *isymbuf = NULL;
5240 Elf_Internal_Rela *internal_relocs = NULL;
5241 Elf_Internal_Rela *irel, *irelend;
5242 struct one_fixup *fixups = NULL;
5243 bfd_boolean changed;
d7128ce4 5244 struct ppc_elf_link_hash_table *htab;
25dbc73a 5245 bfd_size_type trampoff;
a6aa5195 5246 asection *got2;
7619e7c7 5247
25dbc73a 5248 *again = FALSE;
7619e7c7 5249
c87b5a93
AM		 5250 /* Nothing to do if there are no relocations, and no need to do
5251 anything with non-alloc sections. */
5252 if ((isec->flags & SEC_ALLOC) == 0
5253 || (isec->flags & SEC_RELOC) == 0
5254 || isec->reloc_count == 0)
25dbc73a 5255 return TRUE;
7619e7c7 5256
25dbc73a
AM		 5257 trampoff = (isec->size + 3) & (bfd_vma) -4;
5258 /* Space for a branch around any trampolines. */
5259 trampoff += 4;
7619e7c7 5260
0ffa91dd 5261 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 5262
25dbc73a
AM		 5263 /* Get a copy of the native relocations. */
5264 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5265 link_info->keep_memory);
5266 if (internal_relocs == NULL)
5267 goto error_return;
7619e7c7 5268
d7128ce4 5269 htab = ppc_elf_hash_table (link_info);
a6aa5195 5270 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 5271
a6aa5195 5272 irelend = internal_relocs + isec->reloc_count;
25dbc73a 5273 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 5274 {
25dbc73a
AM		 5275 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5276 bfd_vma symaddr, reladdr, toff, roff;
5277 asection *tsec;
5278 struct one_fixup *f;
5279 size_t insn_offset = 0;
5280 bfd_vma max_branch_offset, val;
5281 bfd_byte *hit_addr;
5282 unsigned long t0;
5283 unsigned char sym_type;
7619e7c7 5284
25dbc73a
AM		 5285 switch (r_type)
5286 {
5287 case R_PPC_REL24:
5288 case R_PPC_LOCAL24PC:
5289 case R_PPC_PLTREL24:
5290 max_branch_offset = 1 << 25;
5291 break;
7619e7c7 5292
25dbc73a
AM		 5293 case R_PPC_REL14:
5294 case R_PPC_REL14_BRTAKEN:
5295 case R_PPC_REL14_BRNTAKEN:
5296 max_branch_offset = 1 << 15;
5297 break;
7619e7c7 5298
25dbc73a
AM		 5299 default:
5300 continue;
5301 }
7619e7c7 5302
25dbc73a
AM		 5303 /* Get the value of the symbol referred to by the reloc. */
5304 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5305 {
5306 /* A local symbol. */
5307 Elf_Internal_Sym *isym;
7fce784e 5308
25dbc73a
AM		 5309 /* Read this BFD's local symbols. */
5310 if (isymbuf == NULL)
5311 {
5312 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5313 if (isymbuf == NULL)
5314 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5315 symtab_hdr->sh_info, 0,
5316 NULL, NULL, NULL);
5317 if (isymbuf == 0)
5318 goto error_return;
5319 }
5320 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5321 if (isym->st_shndx == SHN_UNDEF)
5322 continue; /* We can't do anything with undefined symbols. */
5323 else if (isym->st_shndx == SHN_ABS)
5324 tsec = bfd_abs_section_ptr;
5325 else if (isym->st_shndx == SHN_COMMON)
5326 tsec = bfd_com_section_ptr;
5327 else
5328 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 5329
25dbc73a
AM		 5330 toff = isym->st_value;
5331 sym_type = ELF_ST_TYPE (isym->st_info);
5332 }
5333 else
5334 {
5335 /* Global symbol handling. */
5336 unsigned long indx;
5337 struct elf_link_hash_entry *h;
7619e7c7 5338
25dbc73a
AM		 5339 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5340 h = elf_sym_hashes (abfd)[indx];
7619e7c7 5341
25dbc73a
AM		 5342 while (h->root.type == bfd_link_hash_indirect
5343 || h->root.type == bfd_link_hash_warning)
5344 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5345
a6aa5195
AM		 5346 tsec = NULL;
5347 toff = 0;
25dbc73a 5348 if (r_type == R_PPC_PLTREL24
a6aa5195 5349 && htab->plt != NULL)
25dbc73a 5350 {
a6aa5195
AM		 5351 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5352
5353 if (ent != NULL)
d7128ce4 5354 {
4a3dc543 5355 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 5356 {
5357 tsec = htab->glink;
5358 toff = ent->glink_offset;
5359 }
5360 else
5361 {
5362 tsec = htab->plt;
5363 toff = ent->plt.offset;
5364 }
d7128ce4 5365 }
25dbc73a 5366 }
a6aa5195
AM		 5367 if (tsec != NULL)
5368 ;
25dbc73a
AM		 5369 else if (h->root.type == bfd_link_hash_defined
5370 || h->root.type == bfd_link_hash_defweak)
5371 {
5372 tsec = h->root.u.def.section;
5373 toff = h->root.u.def.value;
5374 }
5375 else
5376 continue;
7619e7c7 5377
25dbc73a
AM		 5378 sym_type = h->type;
5379 }
7619e7c7 5380
25dbc73a
AM		 5381 /* If the branch and target are in the same section, you have
5382 no hope of adding stubs. We'll error out later should the
5383 branch overflow. */
5384 if (tsec == isec)
5385 continue;
5386
5387 /* There probably isn't any reason to handle symbols in
5388 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5389 attribute for a code section, and we are only looking at
5390 branches. However, implement it correctly here as a
5391 reference for other target relax_section functions. */
5392 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5393 {
5394 /* At this stage in linking, no SEC_MERGE symbol has been
5395 adjusted, so all references to such symbols need to be
5396 passed through _bfd_merged_section_offset. (Later, in
5397 relocate_section, all SEC_MERGE symbols *except* for
5398 section symbols have been adjusted.)
5399
5400 gas may reduce relocations against symbols in SEC_MERGE
5401 sections to a relocation against the section symbol when
5402 the original addend was zero. When the reloc is against
5403 a section symbol we should include the addend in the
5404 offset passed to _bfd_merged_section_offset, since the
5405 location of interest is the original symbol. On the
5406 other hand, an access to "sym+addend" where "sym" is not
5407 a section symbol should not include the addend; Such an
5408 access is presumed to be an offset from "sym"; The
5409 location of interest is just "sym". */
5410 if (sym_type == STT_SECTION)
5411 toff += irel->r_addend;
7619e7c7 5412
25dbc73a
AM		 5413 toff = _bfd_merged_section_offset (abfd, &tsec,
5414 elf_section_data (tsec)->sec_info,
5415 toff);
7619e7c7 5416
25dbc73a
AM		 5417 if (sym_type != STT_SECTION)
5418 toff += irel->r_addend;
5419 }
a6aa5195
AM		 5420 /* PLTREL24 addends are special. */
5421 else if (r_type != R_PPC_PLTREL24)
25dbc73a 5422 toff += irel->r_addend;
7619e7c7 5423
7de713b9
AM		 5424 /* Attempted -shared link of non-pic code loses. */
5425 if (tsec->output_section == NULL)
5426 continue;
5427
25dbc73a 5428 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7619e7c7 5429
25dbc73a
AM		 5430 roff = irel->r_offset;
5431 reladdr = isec->output_section->vma + isec->output_offset + roff;
7619e7c7 5432
25dbc73a
AM		 5433 /* If the branch is in range, no need to do anything. */
5434 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5435 continue;
252b5132 5436
25dbc73a
AM		 5437 /* Look for an existing fixup to this address. */
5438 for (f = fixups; f ; f = f->next)
5439 if (f->tsec == tsec && f->toff == toff)
5440 break;
5441
5442 if (f == NULL)
7619e7c7 5443 {
25dbc73a
AM		 5444 size_t size;
5445 unsigned long stub_rtype;
252b5132 5446
25dbc73a
AM		 5447 val = trampoff - roff;
5448 if (val >= max_branch_offset)
5449 /* Oh dear, we can't reach a trampoline. Don't try to add
5450 one. We'll report an error later. */
5451 continue;
252b5132 5452
25dbc73a
AM		 5453 if (link_info->shared)
5454 {
5455 size = 4 * ARRAY_SIZE (shared_stub_entry);
5456 insn_offset = 12;
5457 stub_rtype = R_PPC_RELAX32PC;
5458 }
5459 else
5460 {
5461 size = 4 * ARRAY_SIZE (stub_entry);
5462 insn_offset = 0;
5463 stub_rtype = R_PPC_RELAX32;
5464 }
dc810e39 5465
25dbc73a
AM		 5466 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5467 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5468 abort ();
d7128ce4
AM		 5469 if (tsec == htab->plt
5470 || tsec == htab->glink)
25dbc73a 5471 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
252b5132 5472
25dbc73a
AM		 5473 /* Hijack the old relocation. Since we need two
5474 relocations for this use a "composite" reloc. */
5475 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5476 stub_rtype);
5477 irel->r_offset = trampoff + insn_offset;
252b5132 5478
25dbc73a
AM		 5479 /* Record the fixup so we don't do it again this section. */
5480 f = bfd_malloc (sizeof (*f));
5481 f->next = fixups;
5482 f->tsec = tsec;
5483 f->toff = toff;
5484 f->trampoff = trampoff;
5485 fixups = f;
252b5132 5486
25dbc73a
AM		 5487 trampoff += size;
5488 }
5489 else
5490 {
5491 val = f->trampoff - roff;
5492 if (val >= max_branch_offset)
5493 continue;
252b5132 5494
25dbc73a
AM		 5495 /* Nop out the reloc, since we're finalizing things here. */
5496 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5497 }
252b5132 5498
25dbc73a
AM		 5499 /* Get the section contents. */
5500 if (contents == NULL)
5501 {
5502 /* Get cached copy if it exists. */
5503 if (elf_section_data (isec)->this_hdr.contents != NULL)
5504 contents = elf_section_data (isec)->this_hdr.contents;
5505 else
5506 {
5507 /* Go get them off disk. */
5508 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5509 goto error_return;
5510 }
5511 }
252b5132 5512
25dbc73a
AM		 5513 /* Fix up the existing branch to hit the trampoline. */
5514 hit_addr = contents + roff;
5515 switch (r_type)
5516 {
5517 case R_PPC_REL24:
5518 case R_PPC_LOCAL24PC:
5519 case R_PPC_PLTREL24:
5520 t0 = bfd_get_32 (abfd, hit_addr);
5521 t0 &= ~0x3fffffc;
5522 t0 |= val & 0x3fffffc;
5523 bfd_put_32 (abfd, t0, hit_addr);
5524 break;
252b5132 5525
25dbc73a
AM		 5526 case R_PPC_REL14:
5527 case R_PPC_REL14_BRTAKEN:
5528 case R_PPC_REL14_BRNTAKEN:
5529 t0 = bfd_get_32 (abfd, hit_addr);
5530 t0 &= ~0xfffc;
5531 t0 |= val & 0xfffc;
5532 bfd_put_32 (abfd, t0, hit_addr);
5533 break;
5534 }
5535 }
252b5132 5536
25dbc73a
AM		 5537 /* Write out the trampolines. */
5538 changed = fixups != NULL;
5539 if (fixups != NULL)
5540 {
5541 const int *stub;
5542 bfd_byte *dest;
5543 bfd_vma val;
5544 int i, size;
252b5132 5545
25dbc73a
AM		 5546 do
5547 {
5548 struct one_fixup *f = fixups;
5549 fixups = fixups->next;
5550 free (f);
5551 }
5552 while (fixups);
252b5132 5553
25dbc73a
AM		 5554 contents = bfd_realloc (contents, trampoff);
5555 if (contents == NULL)
5556 goto error_return;
252b5132 5557
25dbc73a
AM		 5558 isec->size = (isec->size + 3) & (bfd_vma) -4;
5559 /* Branch around the trampolines. */
5560 val = trampoff - isec->size + 0x48000000;
5561 dest = contents + isec->size;
5562 isec->size = trampoff;
5563 bfd_put_32 (abfd, val, dest);
5564 dest += 4;
252b5132 5565
25dbc73a
AM		 5566 if (link_info->shared)
5567 {
5568 stub = shared_stub_entry;
5569 size = ARRAY_SIZE (shared_stub_entry);
5570 }
5571 else
5572 {
5573 stub = stub_entry;
5574 size = ARRAY_SIZE (stub_entry);
5575 }
252b5132 5576
25dbc73a
AM		 5577 i = 0;
5578 while (dest < contents + trampoff)
252b5132 5579 {
25dbc73a
AM		 5580 bfd_put_32 (abfd, stub[i], dest);
5581 i++;
5582 if (i == size)
5583 i = 0;
5584 dest += 4;
252b5132 5585 }
25dbc73a 5586 BFD_ASSERT (i == 0);
252b5132
RH		 5587 }
5588
25dbc73a
AM		 5589 if (isymbuf != NULL
5590 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 5591 {
25dbc73a
AM		 5592 if (! link_info->keep_memory)
5593 free (isymbuf);
252b5132 5594 else
25dbc73a
AM		 5595 {
5596 /* Cache the symbols for elf_link_input_bfd. */
5597 symtab_hdr->contents = (unsigned char *) isymbuf;
5598 }
252b5132
RH		 5599 }
5600
25dbc73a
AM		 5601 if (contents != NULL
5602 && elf_section_data (isec)->this_hdr.contents != contents)
5603 {
5604 if (!changed && !link_info->keep_memory)
5605 free (contents);
5606 else
5607 {
5608 /* Cache the section contents for elf_link_input_bfd. */
5609 elf_section_data (isec)->this_hdr.contents = contents;
5610 }
5611 }
252b5132 5612
25dbc73a
AM		 5613 if (elf_section_data (isec)->relocs != internal_relocs)
5614 {
5615 if (!changed)
5616 free (internal_relocs);
5617 else
5618 elf_section_data (isec)->relocs = internal_relocs;
5619 }
252b5132 5620
25dbc73a 5621 *again = changed;
b34976b6 5622 return TRUE;
25dbc73a
AM		 5623
5624 error_return:
5625 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5626 free (isymbuf);
5627 if (contents != NULL
5628 && elf_section_data (isec)->this_hdr.contents != contents)
5629 free (contents);
5630 if (internal_relocs != NULL
5631 && elf_section_data (isec)->relocs != internal_relocs)
5632 free (internal_relocs);
5633 return FALSE;
252b5132 5634}
252b5132 5635\f
8a696751
AM		 5636/* What to do when ld finds relocations against symbols defined in
5637 discarded sections. */
5638
5639static unsigned int
5640ppc_elf_action_discarded (asection *sec)
5641{
5642 if (strcmp (".fixup", sec->name) == 0)
5643 return 0;
5644
5645 if (strcmp (".got2", sec->name) == 0)
5646 return 0;
5647
5648 return _bfd_elf_default_action_discarded (sec);
5649}
c9a2f333 5650\f
25dbc73a 5651/* Fill in the address for a pointer generated in a linker section. */
252b5132 5652
25dbc73a 5653static bfd_vma
76750a2f 5654elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM		 5655 elf_linker_section_t *lsect,
5656 struct elf_link_hash_entry *h,
5657 bfd_vma relocation,
2bb04cf2 5658 const Elf_Internal_Rela *rel)
25dbc73a
AM		 5659{
5660 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 5661
25dbc73a 5662 BFD_ASSERT (lsect != NULL);
252b5132 5663
25dbc73a 5664 if (h != NULL)
252b5132 5665 {
25dbc73a
AM		 5666 /* Handle global symbol. */
5667 struct ppc_elf_link_hash_entry *eh;
252b5132 5668
25dbc73a 5669 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM		 5670 BFD_ASSERT (eh->elf.def_regular);
5671 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM		 5672 }
5673 else
5674 {
5675 /* Handle local symbol. */
5676 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 5677
0ffa91dd 5678 BFD_ASSERT (is_ppc_elf_target (input_bfd->xvec));
25dbc73a 5679 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM		 5680 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5681 }
252b5132 5682
76750a2f
AM		 5683 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5684 rel->r_addend,
5685 lsect);
5686 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 5687
76750a2f
AM		 5688 /* Offset will always be a multiple of four, so use the bottom bit
5689 as a "written" flag. */
5690 if ((linker_section_ptr->offset & 1) == 0)
5691 {
5692 bfd_put_32 (lsect->section->owner,
5693 relocation + linker_section_ptr->addend,
5694 lsect->section->contents + linker_section_ptr->offset);
5695 linker_section_ptr->offset += 1;
252b5132
RH		 5696 }
5697
25dbc73a 5698 relocation = (lsect->section->output_offset
76750a2f 5699 + linker_section_ptr->offset - 1
c9a2f333 5700 - 0x8000);
252b5132 5701
25dbc73a
AM		 5702#ifdef DEBUG
5703 fprintf (stderr,
5704 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5705 lsect->name, (long) relocation, (long) relocation);
5706#endif
252b5132 5707
25dbc73a
AM		 5708 /* Subtract out the addend, because it will get added back in by the normal
5709 processing. */
5710 return relocation - linker_section_ptr->addend;
252b5132 5711}
25dbc73a 5712
252b5132
RH		 5713/* The RELOCATE_SECTION function is called by the ELF backend linker
5714 to handle the relocations for a section.
5715
5716 The relocs are always passed as Rela structures; if the section
5717 actually uses Rel structures, the r_addend field will always be
5718 zero.
5719
5720 This function is responsible for adjust the section contents as
5721 necessary, and (if using Rela relocs and generating a
1049f94e 5722 relocatable output file) adjusting the reloc addend as
252b5132
RH		 5723 necessary.
5724
5725 This function does not have to worry about setting the reloc
5726 address or the reloc symbol index.
5727
5728 LOCAL_SYMS is a pointer to the swapped in local symbols.
5729
5730 LOCAL_SECTIONS is an array giving the section in the input file
5731 corresponding to the st_shndx field of each local symbol.
5732
5733 The global hash table entry for the global symbols can be found
5734 via elf_sym_hashes (input_bfd).
5735
1049f94e 5736 When generating relocatable output, this function must handle
252b5132
RH		 5737 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
5738 going to be the section symbol corresponding to the output
5739 section, which means that the addend must be adjusted
5740 accordingly. */
5741
b34976b6 5742static bfd_boolean
55fd94b0
AM		 5743ppc_elf_relocate_section (bfd *output_bfd,
5744 struct bfd_link_info *info,
5745 bfd *input_bfd,
5746 asection *input_section,
5747 bfd_byte *contents,
5748 Elf_Internal_Rela *relocs,
5749 Elf_Internal_Sym *local_syms,
5750 asection **local_sections)
252b5132 5751{
7619e7c7
AM		 5752 Elf_Internal_Shdr *symtab_hdr;
5753 struct elf_link_hash_entry **sym_hashes;
5754 struct ppc_elf_link_hash_table *htab;
5755 Elf_Internal_Rela *rel;
5756 Elf_Internal_Rela *relend;
5757 Elf_Internal_Rela outrel;
5758 bfd_byte *loc;
a6aa5195 5759 asection *got2, *sreloc = NULL;
252b5132 5760 bfd_vma *local_got_offsets;
b34976b6 5761 bfd_boolean ret = TRUE;
4fe5ca5b 5762 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
b34976b6 5763
252b5132 5764#ifdef DEBUG
d003868e
AM		 5765 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
5766 "%ld relocations%s",
5767 input_bfd, input_section,
5768 (long) input_section->reloc_count,
5769 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH		 5770#endif
5771
a6aa5195
AM		 5772 got2 = bfd_get_section_by_name (input_bfd, ".got2");
5773
e47cd125 5774 /* Initialize howto table if not already done. */
8da6118f 5775 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH		 5776 ppc_elf_howto_init ();
5777
7619e7c7 5778 htab = ppc_elf_hash_table (info);
252b5132 5779 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 5780 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7
AM		 5781 sym_hashes = elf_sym_hashes (input_bfd);
5782 rel = relocs;
5783 relend = relocs + input_section->reloc_count;
252b5132
RH		 5784 for (; rel < relend; rel++)
5785 {
7619e7c7
AM		 5786 enum elf_ppc_reloc_type r_type;
5787 bfd_vma addend;
5788 bfd_reloc_status_type r;
5789 Elf_Internal_Sym *sym;
5790 asection *sec;
5791 struct elf_link_hash_entry *h;
5792 const char *sym_name;
252b5132
RH		 5793 reloc_howto_type *howto;
5794 unsigned long r_symndx;
5795 bfd_vma relocation;
7619e7c7 5796 bfd_vma branch_bit, insn, from;
7619e7c7
AM		 5797 bfd_boolean unresolved_reloc;
5798 bfd_boolean warned;
5799 unsigned int tls_type, tls_mask, tls_gd;
5800
55fd94b0
AM		 5801 r_type = ELF32_R_TYPE (rel->r_info);
5802 sym = NULL;
5803 sec = NULL;
5804 h = NULL;
7619e7c7
AM		 5805 unresolved_reloc = FALSE;
5806 warned = FALSE;
252b5132 5807 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 5808
252b5132
RH		 5809 if (r_symndx < symtab_hdr->sh_info)
5810 {
5811 sym = local_syms + r_symndx;
5812 sec = local_sections[r_symndx];
26c61ae5 5813 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 5814
8517fae7 5815 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH		 5816 }
5817 else
5818 {
b2a8e766
AM		 5819 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
5820 r_symndx, symtab_hdr, sym_hashes,
5821 h, sec, relocation,
5822 unresolved_reloc, warned);
9abc968f 5823
252b5132 5824 sym_name = h->root.root.string;
7619e7c7
AM		 5825 }
5826
ab96bf03
AM		 5827 if (sec != NULL && elf_discarded_section (sec))
5828 {
5829 /* For relocs against symbols from removed linkonce sections,
5830 or sections discarded by a linker script, we just want the
5831 section contents zeroed. Avoid any special processing. */
5832 howto = NULL;
5833 if (r_type < R_PPC_max)
5834 howto = ppc_elf_howto_table[r_type];
5835 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
5836 rel->r_info = 0;
5837 rel->r_addend = 0;
5838 continue;
5839 }
5840
5841 if (info->relocatable)
5842 {
5843 if (got2 != NULL
5844 && r_type == R_PPC_PLTREL24
5845 && rel->r_addend >= 32768)
5846 {
5847 /* R_PPC_PLTREL24 is rather special. If non-zero, the
5848 addend specifies the GOT pointer offset within .got2. */
5849 rel->r_addend += got2->output_offset;
5850 }
5851 continue;
5852 }
5853
7619e7c7
AM		 5854 /* TLS optimizations. Replace instruction sequences and relocs
5855 based on information we collected in tls_optimize. We edit
5856 RELOCS so that --emit-relocs will output something sensible
5857 for the final instruction stream. */
5858 tls_mask = 0;
5859 tls_gd = 0;
5860 if (IS_PPC_TLS_RELOC (r_type))
5861 {
5862 if (h != NULL)
5863 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
5864 else if (local_got_offsets != NULL)
5865 {
5866 char *lgot_masks;
5867 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
5868 tls_mask = lgot_masks[r_symndx];
5869 }
5870 }
5871
5872 /* Ensure reloc mapping code below stays sane. */
5873 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
5874 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
5875 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
5876 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
5877 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
5878 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
5879 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
5880 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
5881 abort ();
5882 switch (r_type)
5883 {
5884 default:
5885 break;
5886
5887 case R_PPC_GOT_TPREL16:
5888 case R_PPC_GOT_TPREL16_LO:
5889 if (tls_mask != 0
5890 && (tls_mask & TLS_TPREL) == 0)
5891 {
5892 bfd_vma insn;
4fe5ca5b 5893 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM		 5894 insn &= 31 << 21;
5895 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 5896 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM		 5897 r_type = R_PPC_TPREL16_HA;
5898 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5899 }
5900 break;
5901
5902 case R_PPC_TLS:
5903 if (tls_mask != 0
5904 && (tls_mask & TLS_TPREL) == 0)
5905 {
5906 bfd_vma insn, rtra;
5907 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5908 if ((insn & ((31 << 26) | (31 << 11)))
5909 == ((31 << 26) | (2 << 11)))
5910 rtra = insn & ((1 << 26) - (1 << 16));
5911 else if ((insn & ((31 << 26) | (31 << 16)))
5912 == ((31 << 26) | (2 << 16)))
5913 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
5914 else
5915 abort ();
5916 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
5917 /* add -> addi. */
5918 insn = 14 << 26;
5919 else if ((insn & (31 << 1)) == 23 << 1
5920 && ((insn & (31 << 6)) < 14 << 6
5921 || ((insn & (31 << 6)) >= 16 << 6
5922 && (insn & (31 << 6)) < 24 << 6)))
5923 /* load and store indexed -> dform. */
5924 insn = (32 | ((insn >> 6) & 31)) << 26;
5925 else if ((insn & (31 << 1)) == 21 << 1
5926 && (insn & (0x1a << 6)) == 0)
5927 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
5928 insn = (((58 | ((insn >> 6) & 4)) << 26)
5929 | ((insn >> 6) & 1));
5930 else if ((insn & (31 << 1)) == 21 << 1
5931 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
5932 /* lwax -> lwa. */
5933 insn = (58 << 26) | 2;
5934 else
5935 abort ();
5936 insn |= rtra;
5937 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5938 r_type = R_PPC_TPREL16_LO;
5939 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 5940
7619e7c7 5941 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM		 5942 PPC_TPREL16_LO which is at low-order half-word. */
5943 rel->r_offset += d_offset;
7619e7c7
AM		 5944 }
5945 break;
5946
5947 case R_PPC_GOT_TLSGD16_HI:
5948 case R_PPC_GOT_TLSGD16_HA:
5949 tls_gd = TLS_TPRELGD;
5950 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5951 goto tls_gdld_hi;
5952 break;
5953
5954 case R_PPC_GOT_TLSLD16_HI:
5955 case R_PPC_GOT_TLSLD16_HA:
5956 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5957 {
5958 tls_gdld_hi:
5959 if ((tls_mask & tls_gd) != 0)
5960 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5961 + R_PPC_GOT_TPREL16);
5962 else
5963 {
5964 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 5965 rel->r_offset -= d_offset;
7619e7c7
AM		 5966 r_type = R_PPC_NONE;
5967 }
5968 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5969 }
5970 break;
5971
5972 case R_PPC_GOT_TLSGD16:
5973 case R_PPC_GOT_TLSGD16_LO:
5974 tls_gd = TLS_TPRELGD;
5975 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 5976 goto tls_ldgd_opt;
7619e7c7
AM		 5977 break;
5978
5979 case R_PPC_GOT_TLSLD16:
5980 case R_PPC_GOT_TLSLD16_LO:
5981 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5982 {
b7fcf6f6
AM		 5983 bfd_vma insn1, insn2;
5984 bfd_vma offset;
7619e7c7 5985
b7fcf6f6
AM		 5986 tls_ldgd_opt:
5987 offset = rel[1].r_offset;
5988 insn1 = bfd_get_32 (output_bfd,
5989 contents + rel->r_offset - d_offset);
5990 if ((tls_mask & tls_gd) != 0)
5991 {
5992 /* IE */
5993 insn1 &= (1 << 26) - 1;
5994 insn1 |= 32 << 26; /* lwz */
5995 insn2 = 0x7c631214; /* add 3,3,2 */
5996 rel[1].r_info
5997 = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), R_PPC_NONE);
5998 rel[1].r_addend = 0;
5999 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6000 + R_PPC_GOT_TPREL16);
6001 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6002 }
6003 else
6004 {
6005 /* LE */
6006 insn1 = 0x3c620000; /* addis 3,2,0 */
6007 insn2 = 0x38630000; /* addi 3,3,0 */
7619e7c7
AM		 6008 if (tls_gd == 0)
6009 {
b7fcf6f6
AM		 6010 /* Was an LD reloc. */
6011 r_symndx = 0;
6012 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7 6013 }
b7fcf6f6
AM		 6014 r_type = R_PPC_TPREL16_HA;
6015 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6016 rel[1].r_info = ELF32_R_INFO (r_symndx,
6017 R_PPC_TPREL16_LO);
6018 rel[1].r_offset += d_offset;
6019 rel[1].r_addend = rel->r_addend;
6020 }
6021 bfd_put_32 (output_bfd, insn1,
6022 contents + rel->r_offset - d_offset);
6023 bfd_put_32 (output_bfd, insn2, contents + offset);
6024 if (tls_gd == 0)
6025 {
6026 /* We changed the symbol on an LD reloc. Start over
6027 in order to get h, sym, sec etc. right. */
6028 rel--;
6029 continue;
7619e7c7 6030 }
252b5132 6031 }
7619e7c7
AM		 6032 break;
6033 }
6034
6035 /* Handle other relocations that tweak non-addend part of insn. */
6036 branch_bit = 0;
6037 switch (r_type)
6038 {
6039 default:
6040 break;
6041
6042 /* Branch taken prediction relocations. */
6043 case R_PPC_ADDR14_BRTAKEN:
6044 case R_PPC_REL14_BRTAKEN:
6045 branch_bit = BRANCH_PREDICT_BIT;
6046 /* Fall thru */
6047
4cc11e76 6048 /* Branch not taken prediction relocations. */
7619e7c7
AM		 6049 case R_PPC_ADDR14_BRNTAKEN:
6050 case R_PPC_REL14_BRNTAKEN:
6051 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6052 insn &= ~BRANCH_PREDICT_BIT;
6053 insn |= branch_bit;
6054
6055 from = (rel->r_offset
6056 + input_section->output_offset
6057 + input_section->output_section->vma);
6058
6059 /* Invert 'y' bit if not the default. */
6060 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
6061 insn ^= BRANCH_PREDICT_BIT;
6062
6063 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6064 break;
252b5132
RH		 6065 }
6066
7619e7c7
AM		 6067 addend = rel->r_addend;
6068 tls_type = 0;
6069 howto = NULL;
55fd94b0
AM		 6070 if (r_type < R_PPC_max)
6071 howto = ppc_elf_howto_table[r_type];
7619e7c7 6072 switch (r_type)
252b5132
RH		 6073 {
6074 default:
7619e7c7 6075 (*_bfd_error_handler)
d003868e
AM		 6076 (_("%B: unknown relocation type %d for symbol %s"),
6077 input_bfd, (int) r_type, sym_name);
252b5132
RH		 6078
6079 bfd_set_error (bfd_error_bad_value);
b34976b6 6080 ret = FALSE;
252b5132
RH		 6081 continue;
6082
7619e7c7
AM		 6083 case R_PPC_NONE:
6084 case R_PPC_TLS:
6085 case R_PPC_EMB_MRKREF:
6086 case R_PPC_GNU_VTINHERIT:
6087 case R_PPC_GNU_VTENTRY:
7595d193
L		 6088 continue;
6089
7619e7c7
AM		 6090 /* GOT16 relocations. Like an ADDR16 using the symbol's
6091 address in the GOT as relocation value instead of the
6092 symbol's value itself. Also, create a GOT entry for the
6093 symbol and put the symbol value there. */
6094 case R_PPC_GOT_TLSGD16:
6095 case R_PPC_GOT_TLSGD16_LO:
6096 case R_PPC_GOT_TLSGD16_HI:
6097 case R_PPC_GOT_TLSGD16_HA:
6098 tls_type = TLS_TLS | TLS_GD;
6099 goto dogot;
6100
6101 case R_PPC_GOT_TLSLD16:
6102 case R_PPC_GOT_TLSLD16_LO:
6103 case R_PPC_GOT_TLSLD16_HI:
6104 case R_PPC_GOT_TLSLD16_HA:
6105 tls_type = TLS_TLS | TLS_LD;
6106 goto dogot;
6107
6108 case R_PPC_GOT_TPREL16:
6109 case R_PPC_GOT_TPREL16_LO:
6110 case R_PPC_GOT_TPREL16_HI:
6111 case R_PPC_GOT_TPREL16_HA:
6112 tls_type = TLS_TLS | TLS_TPREL;
6113 goto dogot;
6114
6115 case R_PPC_GOT_DTPREL16:
6116 case R_PPC_GOT_DTPREL16_LO:
6117 case R_PPC_GOT_DTPREL16_HI:
6118 case R_PPC_GOT_DTPREL16_HA:
6119 tls_type = TLS_TLS | TLS_DTPREL;
6120 goto dogot;
6121
6122 case R_PPC_GOT16:
6123 case R_PPC_GOT16_LO:
6124 case R_PPC_GOT16_HI:
6125 case R_PPC_GOT16_HA:
6126 dogot:
6127 {
6128 /* Relocation is to the entry for this symbol in the global
6129 offset table. */
6130 bfd_vma off;
6131 bfd_vma *offp;
6132 unsigned long indx;
6133
6134 if (htab->got == NULL)
6135 abort ();
6136
6137 indx = 0;
6138 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 6139 && (h == NULL
f5385ebf 6140 || !h->def_dynamic))
7619e7c7
AM		 6141 offp = &htab->tlsld_got.offset;
6142 else if (h != NULL)
6143 {
6144 bfd_boolean dyn;
6145 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 6146 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM		 6147 || (info->shared
6148 && SYMBOL_REFERENCES_LOCAL (info, h)))
6149 /* This is actually a static link, or it is a
6150 -Bsymbolic link and the symbol is defined
6151 locally, or the symbol was forced to be local
6152 because of a version file. */
6153 ;
6154 else
6155 {
6156 indx = h->dynindx;
6157 unresolved_reloc = FALSE;
6158 }
6159 offp = &h->got.offset;
6160 }
6161 else
6162 {
6163 if (local_got_offsets == NULL)
6164 abort ();
6165 offp = &local_got_offsets[r_symndx];
6166 }
6167
6168 /* The offset must always be a multiple of 4. We use the
6169 least significant bit to record whether we have already
6170 processed this entry. */
6171 off = *offp;
6172 if ((off & 1) != 0)
6173 off &= ~1;
6174 else
6175 {
70bccea4
AM		 6176 unsigned int tls_m = (tls_mask
6177 & (TLS_LD | TLS_GD | TLS_DTPREL
6178 | TLS_TPREL | TLS_TPRELGD));
6179
6180 if (offp == &htab->tlsld_got.offset)
6181 tls_m = TLS_LD;
6182 else if (h == NULL
f5385ebf 6183 || !h->def_dynamic)
70bccea4
AM		 6184 tls_m &= ~TLS_LD;
6185
6186 /* We might have multiple got entries for this sym.
6187 Initialize them all. */
6188 do
7619e7c7 6189 {
70bccea4
AM		 6190 int tls_ty = 0;
6191
6192 if ((tls_m & TLS_LD) != 0)
7619e7c7 6193 {
70bccea4
AM		 6194 tls_ty = TLS_TLS | TLS_LD;
6195 tls_m &= ~TLS_LD;
6196 }
6197 else if ((tls_m & TLS_GD) != 0)
6198 {
6199 tls_ty = TLS_TLS | TLS_GD;
6200 tls_m &= ~TLS_GD;
6201 }
6202 else if ((tls_m & TLS_DTPREL) != 0)
6203 {
6204 tls_ty = TLS_TLS | TLS_DTPREL;
6205 tls_m &= ~TLS_DTPREL;
6206 }
6207 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6208 {
6209 tls_ty = TLS_TLS | TLS_TPREL;
6210 tls_m = 0;
7619e7c7 6211 }
7619e7c7 6212
70bccea4 6213 /* Generate relocs for the dynamic linker. */
4e795f50
AM		 6214 if ((info->shared || indx != 0)
6215 && (h == NULL
6216 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6217 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 6218 {
70bccea4
AM		 6219 outrel.r_offset = (htab->got->output_section->vma
6220 + htab->got->output_offset
6221 + off);
e515b051 6222 outrel.r_addend = 0;
70bccea4
AM		 6223 if (tls_ty & (TLS_LD | TLS_GD))
6224 {
6225 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM		 6226 if (tls_ty == (TLS_TLS | TLS_GD))
6227 {
6228 loc = htab->relgot->contents;
6229 loc += (htab->relgot->reloc_count++
6230 * sizeof (Elf32_External_Rela));
6231 bfd_elf32_swap_reloca_out (output_bfd,
6232 &outrel, loc);
e515b051 6233 outrel.r_offset += 4;
70bccea4
AM		 6234 outrel.r_info
6235 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM		 6236 }
6237 }
6238 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6239 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6240 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6241 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6242 else if (indx == 0)
6243 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6244 else
6245 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
70bccea4 6246 if (indx == 0)
e515b051
AM		 6247 {
6248 outrel.r_addend += relocation;
6249 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 6250 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 6251 }
70bccea4
AM		 6252 loc = htab->relgot->contents;
6253 loc += (htab->relgot->reloc_count++
6254 * sizeof (Elf32_External_Rela));
6255 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM		 6256 }
6257
70bccea4
AM		 6258 /* Init the .got section contents if we're not
6259 emitting a reloc. */
6260 else
7619e7c7 6261 {
70bccea4
AM		 6262 bfd_vma value = relocation;
6263
7b609f53
AM		 6264 if (tls_ty == (TLS_TLS | TLS_LD))
6265 value = 1;
6266 else if (tls_ty != 0)
70bccea4 6267 {
e1918d23 6268 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 6269 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 6270 value += DTP_OFFSET - TP_OFFSET;
70bccea4 6271
7b609f53
AM		 6272 if (tls_ty == (TLS_TLS | TLS_GD))
6273 {
6274 bfd_put_32 (output_bfd, value,
6275 htab->got->contents + off + 4);
6276 value = 1;
6277 }
70bccea4 6278 }
70bccea4
AM		 6279 bfd_put_32 (output_bfd, value,
6280 htab->got->contents + off);
7619e7c7 6281 }
70bccea4
AM		 6282
6283 off += 4;
6284 if (tls_ty & (TLS_LD | TLS_GD))
6285 off += 4;
7619e7c7 6286 }
70bccea4
AM		 6287 while (tls_m != 0);
6288
6289 off = *offp;
6290 *offp = off | 1;
7619e7c7
AM		 6291 }
6292
6293 if (off >= (bfd_vma) -2)
6294 abort ();
6295
70bccea4
AM		 6296 if ((tls_type & TLS_TLS) != 0)
6297 {
6298 if (tls_type != (TLS_TLS | TLS_LD))
6299 {
6300 if ((tls_mask & TLS_LD) != 0
6301 && !(h == NULL
f5385ebf 6302 || !h->def_dynamic))
70bccea4
AM		 6303 off += 8;
6304 if (tls_type != (TLS_TLS | TLS_GD))
6305 {
6306 if ((tls_mask & TLS_GD) != 0)
6307 off += 8;
6308 if (tls_type != (TLS_TLS | TLS_DTPREL))
6309 {
6310 if ((tls_mask & TLS_DTPREL) != 0)
6311 off += 4;
6312 }
6313 }
6314 }
6315 }
6316
3b36f7e6
AM		 6317 relocation = htab->got->output_offset + off;
6318 relocation -= htab->elf.hgot->root.u.def.value;
7619e7c7
AM		 6319
6320 /* Addends on got relocations don't make much sense.
6321 x+off@got is actually x@got+off, and since the got is
6322 generated by a hash table traversal, the value in the
6323 got at entry m+n bears little relation to the entry m. */
6324 if (addend != 0)
6325 (*_bfd_error_handler)
d003868e
AM		 6326 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6327 input_bfd,
6328 input_section,
7619e7c7 6329 (long) rel->r_offset,
7b609f53 6330 howto->name,
7619e7c7
AM		 6331 sym_name);
6332 }
70bccea4 6333 break;
7619e7c7 6334
252b5132 6335 /* Relocations that need no special processing. */
7619e7c7 6336 case R_PPC_LOCAL24PC:
252b5132
RH		 6337 /* It makes no sense to point a local relocation
6338 at a symbol not in this object. */
7b609f53 6339 if (unresolved_reloc)
252b5132 6340 {
464e1740
ILT		 6341 if (! (*info->callbacks->undefined_symbol) (info,
6342 h->root.root.string,
6343 input_bfd,
6344 input_section,
5cc7c785 6345 rel->r_offset,
b34976b6
AM		 6346 TRUE))
6347 return FALSE;
252b5132
RH		 6348 continue;
6349 }
6350 break;
6351
7619e7c7
AM		 6352 case R_PPC_DTPREL16:
6353 case R_PPC_DTPREL16_LO:
6354 case R_PPC_DTPREL16_HI:
6355 case R_PPC_DTPREL16_HA:
e1918d23 6356 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6357 break;
6358
70bccea4
AM		 6359 /* Relocations that may need to be propagated if this is a shared
6360 object. */
7619e7c7
AM		 6361 case R_PPC_TPREL16:
6362 case R_PPC_TPREL16_LO:
6363 case R_PPC_TPREL16_HI:
6364 case R_PPC_TPREL16_HA:
e1918d23 6365 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6366 /* The TPREL16 relocs shouldn't really be used in shared
6367 libs as they will result in DT_TEXTREL being set, but
6368 support them anyway. */
6369 goto dodyn;
6370
6371 case R_PPC_TPREL32:
e1918d23 6372 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6373 goto dodyn;
6374
6375 case R_PPC_DTPREL32:
e1918d23 6376 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6377 goto dodyn;
6378
e515b051
AM		 6379 case R_PPC_DTPMOD32:
6380 relocation = 1;
6381 addend = 0;
6382 goto dodyn;
6383
d7128ce4
AM		 6384 case R_PPC_REL16:
6385 case R_PPC_REL16_LO:
6386 case R_PPC_REL16_HI:
6387 case R_PPC_REL16_HA:
6388 break;
6389
7619e7c7
AM		 6390 case R_PPC_REL24:
6391 case R_PPC_REL32:
6392 case R_PPC_REL14:
6393 case R_PPC_REL14_BRTAKEN:
6394 case R_PPC_REL14_BRNTAKEN:
252b5132
RH		 6395 /* If these relocations are not to a named symbol, they can be
6396 handled right here, no need to bother the dynamic linker. */
f6c52c13 6397 if (SYMBOL_REFERENCES_LOCAL (info, h)
3b36f7e6 6398 || h == htab->elf.hgot)
252b5132 6399 break;
70bccea4 6400 /* fall through */
252b5132 6401
70bccea4
AM		 6402 /* Relocations that always need to be propagated if this is a shared
6403 object. */
7619e7c7
AM		 6404 case R_PPC_ADDR32:
6405 case R_PPC_ADDR24:
6406 case R_PPC_ADDR16:
6407 case R_PPC_ADDR16_LO:
6408 case R_PPC_ADDR16_HI:
6409 case R_PPC_ADDR16_HA:
6410 case R_PPC_ADDR14:
6411 case R_PPC_ADDR14_BRTAKEN:
6412 case R_PPC_ADDR14_BRNTAKEN:
6413 case R_PPC_UADDR32:
6414 case R_PPC_UADDR16:
7619e7c7 6415 dodyn:
c87b5a93
AM		 6416 if ((input_section->flags & SEC_ALLOC) == 0)
6417 break;
6418 /* Fall thru. */
6419
ee05f2fe 6420 if ((info->shared
4e795f50
AM		 6421 && (h == NULL
6422 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6423 || h->root.type != bfd_link_hash_undefweak)
ee05f2fe 6424 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 6425 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM		 6426 || (ELIMINATE_COPY_RELOCS
6427 && !info->shared
ee05f2fe
AM		 6428 && h != NULL
6429 && h->dynindx != -1
f5385ebf
AM		 6430 && !h->non_got_ref
6431 && h->def_dynamic
6432 && !h->def_regular))
252b5132 6433 {
0bb2d96a 6434 int skip;
252b5132
RH		 6435
6436#ifdef DEBUG
55fd94b0
AM		 6437 fprintf (stderr, "ppc_elf_relocate_section needs to "
6438 "create relocation for %s\n",
70bccea4
AM		 6439 (h && h->root.root.string
6440 ? h->root.root.string : "<unknown>"));
252b5132
RH		 6441#endif
6442
6443 /* When generating a shared object, these relocations
70bccea4
AM		 6444 are copied into the output file to be resolved at run
6445 time. */
252b5132
RH		 6446 if (sreloc == NULL)
6447 {
6448 const char *name;
6449
6450 name = (bfd_elf_string_from_elf_section
6451 (input_bfd,
6452 elf_elfheader (input_bfd)->e_shstrndx,
6453 elf_section_data (input_section)->rel_hdr.sh_name));
6454 if (name == NULL)
b34976b6 6455 return FALSE;
252b5132 6456
0112cd26 6457 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
252b5132
RH		 6458 && strcmp (bfd_get_section_name (input_bfd,
6459 input_section),
6460 name + 5) == 0);
6461
7619e7c7 6462 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
252b5132
RH		 6463 BFD_ASSERT (sreloc != NULL);
6464 }
6465
0bb2d96a 6466 skip = 0;
252b5132 6467
c629eae0
JJ		 6468 outrel.r_offset =
6469 _bfd_elf_section_offset (output_bfd, info, input_section,
6470 rel->r_offset);
0bb2d96a
JJ		 6471 if (outrel.r_offset == (bfd_vma) -1
6472 || outrel.r_offset == (bfd_vma) -2)
6473 skip = (int) outrel.r_offset;
252b5132
RH		 6474 outrel.r_offset += (input_section->output_section->vma
6475 + input_section->output_offset);
6476
6477 if (skip)
6478 memset (&outrel, 0, sizeof outrel);
f6c52c13 6479 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 6480 {
7619e7c7 6481 unresolved_reloc = FALSE;
252b5132
RH		 6482 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6483 outrel.r_addend = rel->r_addend;
6484 }
6485 else
6486 {
47388f4c
AM		 6487 outrel.r_addend = relocation + rel->r_addend;
6488
252b5132 6489 if (r_type == R_PPC_ADDR32)
47388f4c 6490 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH		 6491 else
6492 {
6493 long indx;
6494
47388f4c 6495 if (bfd_is_abs_section (sec))
252b5132
RH		 6496 indx = 0;
6497 else if (sec == NULL || sec->owner == NULL)
6498 {
6499 bfd_set_error (bfd_error_bad_value);
b34976b6 6500 return FALSE;
252b5132
RH		 6501 }
6502 else
6503 {
6504 asection *osec;
6505
47388f4c
AM		 6506 /* We are turning this relocation into one
6507 against a section symbol. It would be
6508 proper to subtract the symbol's value,
6509 osec->vma, from the emitted reloc addend,
6510 but ld.so expects buggy relocs. */
252b5132
RH		 6511 osec = sec->output_section;
6512 indx = elf_section_data (osec)->dynindx;
74541ad4
AM		 6513 if (indx == 0)
6514 {
6515 osec = htab->elf.text_index_section;
6516 indx = elf_section_data (osec)->dynindx;
6517 }
6518 BFD_ASSERT (indx != 0);
252b5132 6519#ifdef DEBUG
74541ad4 6520 if (indx == 0)
e460dd0d 6521 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM		 6522 indx, osec->name, osec->flags,
6523 h->root.root.string);
252b5132
RH		 6524#endif
6525 }
6526
6527 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH		 6528 }
6529 }
6530
947216bf
AM		 6531 loc = sreloc->contents;
6532 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6533 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 6534
2243deae 6535 if (skip == -1)
252b5132 6536 continue;
2243deae
L		 6537
6538 /* This reloc will be computed at runtime. We clear the memory
6539 so that it contains predictable value. */
6540 if (! skip
6541 && ((input_section->flags & SEC_ALLOC) != 0
6542 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6543 {
6544 relocation = howto->pc_relative ? outrel.r_offset : 0;
6545 addend = 0;
6546 break;
6547 }
252b5132 6548 }
252b5132
RH		 6549 break;
6550
b4a38de6
AM		 6551 case R_PPC_RELAX32PC_PLT:
6552 case R_PPC_RELAX32_PLT:
a6aa5195
AM		 6553 {
6554 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6555
4a3dc543 6556 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6557 relocation = (htab->glink->output_section->vma
6558 + htab->glink->output_offset
6559 + ent->glink_offset);
6560 else
6561 relocation = (htab->plt->output_section->vma
6562 + htab->plt->output_offset
6563 + ent->plt.offset);
6564 addend = 0;
6565 }
b4a38de6
AM		 6566 if (r_type == R_PPC_RELAX32_PLT)
6567 goto relax32;
6568 /* Fall thru */
6569
f31a141e
AM		 6570 case R_PPC_RELAX32PC:
6571 relocation -= (input_section->output_section->vma
6572 + input_section->output_offset
6573 + rel->r_offset - 4);
6574 /* Fall thru */
b4a38de6 6575
deaaf2f3 6576 case R_PPC_RELAX32:
b4a38de6 6577 relax32:
9abc968f
AM		 6578 {
6579 unsigned long t0;
6580 unsigned long t1;
6581
6582 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6583 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6584
6585 /* We're clearing the bits for R_PPC_ADDR16_HA
6586 and R_PPC_ADDR16_LO here. */
6587 t0 &= ~0xffff;
6588 t1 &= ~0xffff;
6589
6590 /* t0 is HA, t1 is LO */
6591 relocation += addend;
6592 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6593 t1 |= relocation & 0xffff;
6594
6595 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6596 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6597 }
8517fae7 6598 continue;
deaaf2f3 6599
70bccea4 6600 /* Indirect .sdata relocation. */
7619e7c7 6601 case R_PPC_EMB_SDAI16:
c9a2f333 6602 BFD_ASSERT (htab->sdata[0].section != NULL);
7619e7c7 6603 relocation
76750a2f
AM		 6604 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6605 h, relocation, rel);
252b5132
RH		 6606 break;
6607
70bccea4 6608 /* Indirect .sdata2 relocation. */
7619e7c7 6609 case R_PPC_EMB_SDA2I16:
c9a2f333 6610 BFD_ASSERT (htab->sdata[1].section != NULL);
7619e7c7 6611 relocation
76750a2f
AM		 6612 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6613 h, relocation, rel);
252b5132
RH		 6614 break;
6615
70bccea4
AM		 6616 /* Handle the TOC16 reloc. We want to use the offset within the .got
6617 section, not the actual VMA. This is appropriate when generating
6618 an embedded ELF object, for which the .got section acts like the
6619 AIX .toc section. */
7619e7c7 6620 case R_PPC_TOC16: /* phony GOT16 relocations */
55fd94b0 6621 BFD_ASSERT (sec != NULL);
252b5132
RH		 6622 BFD_ASSERT (bfd_is_und_section (sec)
6623 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 6624 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 6625
70bccea4 6626 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH		 6627 break;
6628
7619e7c7 6629 case R_PPC_PLTREL24:
252b5132 6630 /* Relocation is to the entry for this symbol in the
70bccea4 6631 procedure linkage table. */
a6aa5195
AM		 6632 {
6633 struct plt_entry *ent = find_plt_ent (h, got2, addend);
252b5132 6634
a6aa5195
AM		 6635 addend = 0;
6636 if (ent == NULL
6637 || htab->plt == NULL)
6638 {
6639 /* We didn't make a PLT entry for this symbol. This
6640 happens when statically linking PIC code, or when
6641 using -Bsymbolic. */
6642 break;
6643 }
252b5132 6644
a6aa5195 6645 unresolved_reloc = FALSE;
4a3dc543 6646 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6647 relocation = (htab->glink->output_section->vma
6648 + htab->glink->output_offset
6649 + ent->glink_offset);
6650 else
6651 relocation = (htab->plt->output_section->vma
6652 + htab->plt->output_offset
6653 + ent->plt.offset);
6654 }
8da6118f 6655 break;
252b5132 6656
70bccea4 6657 /* Relocate against _SDA_BASE_. */
7619e7c7 6658 case R_PPC_SDAREL16:
252b5132
RH		 6659 {
6660 const char *name;
046183de 6661 struct elf_link_hash_entry *sh;
252b5132 6662
55fd94b0 6663 BFD_ASSERT (sec != NULL);
252b5132 6664 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 6665 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 6666 && (name[6] == 0 || name[6] == '.'))
0112cd26 6667 || (CONST_STRNEQ (name, ".sbss")
5f819128 6668 && (name[5] == 0 || name[5] == '.'))))
252b5132 6669 {
55fd94b0 6670 (*_bfd_error_handler)
d003868e 6671 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6672 "in the wrong output section (%s)"),
d003868e 6673 input_bfd,
55fd94b0
AM		 6674 sym_name,
6675 howto->name,
6676 name);
252b5132 6677 }
046183de
AM		 6678 sh = htab->sdata[0].sym;
6679 addend -= (sh->root.u.def.value
6680 + sh->root.u.def.section->output_offset
6681 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6682 }
6683 break;
6684
70bccea4 6685 /* Relocate against _SDA2_BASE_. */
7619e7c7 6686 case R_PPC_EMB_SDA2REL:
252b5132
RH		 6687 {
6688 const char *name;
046183de 6689 struct elf_link_hash_entry *sh;
252b5132 6690
55fd94b0 6691 BFD_ASSERT (sec != NULL);
252b5132 6692 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26
NC		 6693 if (! (CONST_STRNEQ (name, ".sdata2")
6694 || CONST_STRNEQ (name, ".sbss2")))
252b5132 6695 {
55fd94b0 6696 (*_bfd_error_handler)
d003868e 6697 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6698 "in the wrong output section (%s)"),
d003868e 6699 input_bfd,
55fd94b0
AM		 6700 sym_name,
6701 howto->name,
6702 name);
c3668558 6703
252b5132 6704 bfd_set_error (bfd_error_bad_value);
b34976b6 6705 ret = FALSE;
252b5132
RH		 6706 continue;
6707 }
046183de
AM		 6708 sh = htab->sdata[1].sym;
6709 addend -= (sh->root.u.def.value
6710 + sh->root.u.def.section->output_offset
6711 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6712 }
6713 break;
6714
70bccea4 6715 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM		 6716 case R_PPC_EMB_SDA21:
6717 case R_PPC_EMB_RELSDA:
252b5132
RH		 6718 {
6719 const char *name;
6720 int reg;
046183de 6721 struct elf_link_hash_entry *sh;
252b5132 6722
55fd94b0 6723 BFD_ASSERT (sec != NULL);
252b5132 6724 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 6725 if (((CONST_STRNEQ (name, ".sdata")
5f819128 6726 && (name[6] == 0 || name[6] == '.'))
0112cd26 6727 || (CONST_STRNEQ (name, ".sbss")
5f819128 6728 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH		 6729 {
6730 reg = 13;
046183de
AM		 6731 sh = htab->sdata[0].sym;
6732 addend -= (sh->root.u.def.value
6733 + sh->root.u.def.section->output_offset
6734 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6735 }
6736
0112cd26
NC		 6737 else if (CONST_STRNEQ (name, ".sdata2")
6738 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH		 6739 {
6740 reg = 2;
046183de
AM		 6741 sh = htab->sdata[1].sym;
6742 addend -= (sh->root.u.def.value
6743 + sh->root.u.def.section->output_offset
6744 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6745 }
6746
8da6118f
KH		 6747 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
6748 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH		 6749 {
6750 reg = 0;
6751 }
6752
6753 else
6754 {
55fd94b0 6755 (*_bfd_error_handler)
d003868e 6756 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6757 "in the wrong output section (%s)"),
d003868e 6758 input_bfd,
55fd94b0
AM		 6759 sym_name,
6760 howto->name,
6761 name);
252b5132
RH		 6762
6763 bfd_set_error (bfd_error_bad_value);
b34976b6 6764 ret = FALSE;
252b5132
RH		 6765 continue;
6766 }
6767
6768 if (r_type == R_PPC_EMB_SDA21)
6769 { /* fill in register field */
7619e7c7 6770 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 6771 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 6772 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH		 6773 }
6774 }
6775 break;
6776
70bccea4 6777 /* Relocate against the beginning of the section. */
7619e7c7
AM		 6778 case R_PPC_SECTOFF:
6779 case R_PPC_SECTOFF_LO:
6780 case R_PPC_SECTOFF_HI:
6781 case R_PPC_SECTOFF_HA:
55fd94b0 6782 BFD_ASSERT (sec != NULL);
252b5132 6783 addend -= sec->output_section->vma;
252b5132
RH		 6784 break;
6785
70bccea4 6786 /* Negative relocations. */
7619e7c7
AM		 6787 case R_PPC_EMB_NADDR32:
6788 case R_PPC_EMB_NADDR16:
6789 case R_PPC_EMB_NADDR16_LO:
6790 case R_PPC_EMB_NADDR16_HI:
6791 case R_PPC_EMB_NADDR16_HA:
8da6118f 6792 addend -= 2 * relocation;
252b5132
RH		 6793 break;
6794
7619e7c7
AM		 6795 case R_PPC_COPY:
6796 case R_PPC_GLOB_DAT:
6797 case R_PPC_JMP_SLOT:
6798 case R_PPC_RELATIVE:
6799 case R_PPC_PLT32:
6800 case R_PPC_PLTREL32:
6801 case R_PPC_PLT16_LO:
6802 case R_PPC_PLT16_HI:
6803 case R_PPC_PLT16_HA:
6804 case R_PPC_ADDR30:
6805 case R_PPC_EMB_RELSEC16:
6806 case R_PPC_EMB_RELST_LO:
6807 case R_PPC_EMB_RELST_HI:
6808 case R_PPC_EMB_RELST_HA:
6809 case R_PPC_EMB_BIT_FLD:
6810 (*_bfd_error_handler)
d003868e
AM		 6811 (_("%B: relocation %s is not yet supported for symbol %s."),
6812 input_bfd,
7619e7c7
AM		 6813 howto->name,
6814 sym_name);
252b5132
RH		 6815
6816 bfd_set_error (bfd_error_invalid_operation);
b34976b6 6817 ret = FALSE;
252b5132 6818 continue;
7619e7c7 6819 }
252b5132 6820
7619e7c7
AM		 6821 /* Do any further special processing. */
6822 switch (r_type)
6823 {
6824 default:
6825 break;
6826
6827 case R_PPC_ADDR16_HA:
d7128ce4 6828 case R_PPC_REL16_HA:
7619e7c7
AM		 6829 case R_PPC_SECTOFF_HA:
6830 case R_PPC_TPREL16_HA:
6831 case R_PPC_DTPREL16_HA:
7619e7c7
AM		 6832 case R_PPC_EMB_NADDR16_HA:
6833 case R_PPC_EMB_RELST_HA:
6834 /* It's just possible that this symbol is a weak symbol
7b609f53 6835 that's not actually defined anywhere. In that case,
7619e7c7
AM		 6836 'sec' would be NULL, and we should leave the symbol
6837 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 6838 if (sec == NULL)
6839 break;
6840 /* Fall thru */
6841
6842 case R_PPC_PLT16_HA:
6843 case R_PPC_GOT16_HA:
6844 case R_PPC_GOT_TLSGD16_HA:
6845 case R_PPC_GOT_TLSLD16_HA:
6846 case R_PPC_GOT_TPREL16_HA:
6847 case R_PPC_GOT_DTPREL16_HA:
6848 /* Add 0x10000 if sign bit in 0:15 is set.
6849 Bits 0:15 are not used. */
6850 addend += 0x8000;
7619e7c7 6851 break;
252b5132
RH		 6852 }
6853
252b5132 6854#ifdef DEBUG
55fd94b0
AM		 6855 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
6856 "offset = %ld, addend = %ld\n",
252b5132 6857 howto->name,
8da6118f 6858 (int) r_type,
252b5132
RH		 6859 sym_name,
6860 r_symndx,
7619e7c7 6861 (long) rel->r_offset,
8da6118f 6862 (long) addend);
252b5132
RH		 6863#endif
6864
7619e7c7
AM		 6865 if (unresolved_reloc
6866 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 6867 && h->def_dynamic))
7619e7c7
AM		 6868 {
6869 (*_bfd_error_handler)
d003868e
AM		 6870 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
6871 input_bfd,
6872 input_section,
7619e7c7 6873 (long) rel->r_offset,
7b609f53 6874 howto->name,
7619e7c7
AM		 6875 sym_name);
6876 ret = FALSE;
6877 }
6878
252b5132
RH		 6879 r = _bfd_final_link_relocate (howto,
6880 input_bfd,
6881 input_section,
6882 contents,
7619e7c7 6883 rel->r_offset,
252b5132
RH		 6884 relocation,
6885 addend);
6886
7619e7c7 6887 if (r != bfd_reloc_ok)
252b5132 6888 {
7619e7c7 6889 if (r == bfd_reloc_overflow)
252b5132 6890 {
7619e7c7
AM		 6891 if (warned)
6892 continue;
6893 if (h != NULL
6894 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH		 6895 && howto->pc_relative)
6896 {
6897 /* Assume this is a call protected by other code that
6898 detect the symbol is undefined. If this is the case,
6899 we can safely ignore the overflow. If not, the
6900 program is hosed anyway, and a little warning isn't
6901 going to help. */
252b5132 6902
dc1bc0c9
RH		 6903 continue;
6904 }
252b5132 6905
7619e7c7 6906 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 6907 (h ? &h->root : NULL),
7619e7c7
AM		 6908 sym_name,
6909 howto->name,
6910 rel->r_addend,
6911 input_bfd,
6912 input_section,
6913 rel->r_offset))
6914 return FALSE;
dc1bc0c9
RH		 6915 }
6916 else
6917 {
7619e7c7 6918 (*_bfd_error_handler)
d003868e
AM		 6919 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
6920 input_bfd, input_section,
7b609f53 6921 (long) rel->r_offset, howto->name, sym_name, (int) r);
7619e7c7 6922 ret = FALSE;
252b5132
RH		 6923 }
6924 }
6925 }
6926
252b5132
RH		 6927#ifdef DEBUG
6928 fprintf (stderr, "\n");
6929#endif
6930
6931 return ret;
6932}
252b5132 6933\f
a6aa5195
AM		 6934#define PPC_LO(v) ((v) & 0xffff)
6935#define PPC_HI(v) (((v) >> 16) & 0xffff)
6936#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6937
25dbc73a
AM		 6938/* Finish up dynamic symbol handling. We set the contents of various
6939 dynamic sections here. */
c5fccbec 6940
b34976b6 6941static bfd_boolean
25dbc73a
AM		 6942ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
6943 struct bfd_link_info *info,
6944 struct elf_link_hash_entry *h,
6945 Elf_Internal_Sym *sym)
e1a9cb8e 6946{
25dbc73a 6947 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM		 6948 struct plt_entry *ent;
6949 bfd_boolean doneone;
e1a9cb8e 6950
25dbc73a
AM		 6951#ifdef DEBUG
6952 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
6953 h->root.root.string);
6954#endif
e1a9cb8e 6955
25dbc73a
AM		 6956 htab = ppc_elf_hash_table (info);
6957 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 6958
a6aa5195
AM		 6959 doneone = FALSE;
6960 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6961 if (ent->plt.offset != (bfd_vma) -1)
6962 {
6963 if (!doneone)
6964 {
6965 Elf_Internal_Rela rela;
6966 bfd_byte *loc;
6967 bfd_vma reloc_index;
e1a9cb8e 6968
4a3dc543 6969 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 6970 reloc_index = ent->plt.offset / 4;
6971 else
6972 {
6973 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
6974 / htab->plt_slot_size);
6975 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 6976 && htab->plt_type == PLT_OLD)
9d8504b1
PB		 6977 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
6978 }
6979
a6aa5195
AM		 6980 /* This symbol has an entry in the procedure linkage table.
6981 Set it up. */
4a3dc543 6982 if (htab->plt_type == PLT_VXWORKS)
a6aa5195 6983 {
9d8504b1
PB		 6984 bfd_vma got_offset;
6985 const bfd_vma *plt_entry;
6986
6987 /* The first three entries in .got.plt are reserved. */
6988 got_offset = (reloc_index + 3) * 4;
6989
6990 /* Use the right PLT. */
6991 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
6992 : ppc_elf_vxworks_plt_entry;
6993
6994 /* Fill in the .plt on VxWorks. */
6995 if (info->shared)
6996 {
6997 bfd_vma got_offset_hi = (got_offset >> 16)
6998 + ((got_offset & 0x8000) >> 15);
6999
7000 bfd_put_32 (output_bfd,
7001 plt_entry[0] | (got_offset_hi & 0xffff),
7002 htab->plt->contents + ent->plt.offset + 0);
7003 bfd_put_32 (output_bfd,
7004 plt_entry[1] | (got_offset & 0xffff),
7005 htab->plt->contents + ent->plt.offset + 4);
7006 }
7007 else
7008 {
636ce3f5
AM		 7009 bfd_vma got_loc
7010 = (got_offset
7011 + htab->elf.hgot->root.u.def.value
7012 + htab->elf.hgot->root.u.def.section->output_offset
7013 + htab->elf.hgot->root.u.def.section->output_section->vma);
9d8504b1
PB		 7014 bfd_vma got_loc_hi = (got_loc >> 16)
7015 + ((got_loc & 0x8000) >> 15);
7016
7017 bfd_put_32 (output_bfd,
7018 plt_entry[0] | (got_loc_hi & 0xffff),
7019 htab->plt->contents + ent->plt.offset + 0);
7020 bfd_put_32 (output_bfd,
7021 plt_entry[1] | (got_loc & 0xffff),
7022 htab->plt->contents + ent->plt.offset + 4);
7023 }
7024
7025 bfd_put_32 (output_bfd, plt_entry[2],
7026 htab->plt->contents + ent->plt.offset + 8);
7027 bfd_put_32 (output_bfd, plt_entry[3],
7028 htab->plt->contents + ent->plt.offset + 12);
7029
7030 /* This instruction is an immediate load. The value loaded is
7031 the byte offset of the R_PPC_JMP_SLOT relocation from the
7032 start of the .rela.plt section. The value is stored in the
7033 low-order 16 bits of the load instruction. */
7034 /* NOTE: It appears that this is now an index rather than a
7035 prescaled offset. */
7036 bfd_put_32 (output_bfd,
7037 plt_entry[4] | reloc_index,
7038 htab->plt->contents + ent->plt.offset + 16);
7039 /* This instruction is a PC-relative branch whose target is
7040 the start of the PLT section. The address of this branch
7041 instruction is 20 bytes beyond the start of this PLT entry.
7042 The address is encoded in bits 6-29, inclusive. The value
7043 stored is right-shifted by two bits, permitting a 26-bit
7044 offset. */
7045 bfd_put_32 (output_bfd,
7046 (plt_entry[5]
7047 | (-(ent->plt.offset + 20) & 0x03fffffc)),
7048 htab->plt->contents + ent->plt.offset + 20);
7049 bfd_put_32 (output_bfd, plt_entry[6],
7050 htab->plt->contents + ent->plt.offset + 24);
7051 bfd_put_32 (output_bfd, plt_entry[7],
7052 htab->plt->contents + ent->plt.offset + 28);
7053
7054 /* Fill in the GOT entry corresponding to this PLT slot with
7055 the address immediately after the the "bctr" instruction
7056 in this PLT entry. */
7057 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
7058 + htab->plt->output_offset
7059 + ent->plt.offset + 16),
7060 htab->sgotplt->contents + got_offset);
7061
7062 if (!info->shared)
7063 {
7064 /* Fill in a couple of entries in .rela.plt.unloaded. */
7065 loc = htab->srelplt2->contents
7066 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
7067 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
7068 * sizeof (Elf32_External_Rela));
7069
7070 /* Provide the @ha relocation for the first instruction. */
7071 rela.r_offset = (htab->plt->output_section->vma
7072 + htab->plt->output_offset
7073 + ent->plt.offset + 2);
636ce3f5 7074 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7075 R_PPC_ADDR16_HA);
7076 rela.r_addend = got_offset;
7077 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7078 loc += sizeof (Elf32_External_Rela);
7079
7080 /* Provide the @l relocation for the second instruction. */
7081 rela.r_offset = (htab->plt->output_section->vma
7082 + htab->plt->output_offset
7083 + ent->plt.offset + 6);
636ce3f5 7084 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7085 R_PPC_ADDR16_LO);
7086 rela.r_addend = got_offset;
7087 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7088 loc += sizeof (Elf32_External_Rela);
7089
7090 /* Provide a relocation for the GOT entry corresponding to this
7091 PLT slot. Point it at the middle of the .plt entry. */
7092 rela.r_offset = (htab->sgotplt->output_section->vma
7093 + htab->sgotplt->output_offset
7094 + got_offset);
7325306f 7095 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB		 7096 R_PPC_ADDR32);
7097 rela.r_addend = ent->plt.offset + 16;
7098 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7099 }
7100
7101 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7102 In particular, the offset for the relocation is not the
7103 address of the PLT entry for this function, as specified
7104 by the ABI. Instead, the offset is set to the address of
7105 the GOT slot for this function. See EABI 4.4.4.1. */
7106 rela.r_offset = (htab->sgotplt->output_section->vma
7107 + htab->sgotplt->output_offset
7108 + got_offset);
7109
a6aa5195
AM		 7110 }
7111 else
7112 {
9d8504b1
PB		 7113 rela.r_offset = (htab->plt->output_section->vma
7114 + htab->plt->output_offset
7115 + ent->plt.offset);
4a3dc543 7116 if (htab->plt_type == PLT_OLD)
9d8504b1
PB		 7117 {
7118 /* We don't need to fill in the .plt. The ppc dynamic
7119 linker will fill it in. */
7120 }
7121 else
7122 {
7123 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7124 + htab->glink->output_section->vma
7125 + htab->glink->output_offset);
7126 bfd_put_32 (output_bfd, val,
7127 htab->plt->contents + ent->plt.offset);
7128 }
a6aa5195 7129 }
e1a9cb8e 7130
a6aa5195 7131 /* Fill in the entry in the .rela.plt section. */
a6aa5195
AM		 7132 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7133 rela.r_addend = 0;
e1a9cb8e 7134
a6aa5195
AM		 7135 loc = (htab->relplt->contents
7136 + reloc_index * sizeof (Elf32_External_Rela));
7137 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 7138
a6aa5195
AM		 7139 if (!h->def_regular)
7140 {
7141 /* Mark the symbol as undefined, rather than as defined in
7142 the .plt section. Leave the value alone. */
7143 sym->st_shndx = SHN_UNDEF;
7144 /* If the symbol is weak, we do need to clear the value.
7145 Otherwise, the PLT entry would provide a definition for
7146 the symbol even if the symbol wasn't defined anywhere,
7147 and so the symbol would never be NULL. */
7148 if (!h->ref_regular_nonweak)
7149 sym->st_value = 0;
7150 }
7151 doneone = TRUE;
7152 }
e1a9cb8e 7153
4a3dc543 7154 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 7155 {
7156 bfd_vma plt;
7157 unsigned char *p;
e1a9cb8e 7158
a6aa5195
AM		 7159 plt = (ent->plt.offset
7160 + htab->plt->output_section->vma
7161 + htab->plt->output_offset);
7162 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
e1a9cb8e 7163
a6aa5195
AM		 7164 if (info->shared || info->pie)
7165 {
7166 bfd_vma got = 0;
7167
7168 if (ent->addend >= 32768)
7169 got = (ent->addend
7170 + ent->sec->output_section->vma
7171 + ent->sec->output_offset);
7172 else if (htab->elf.hgot != NULL)
7173 got = (htab->elf.hgot->root.u.def.value
7174 + htab->elf.hgot->root.u.def.section->output_section->vma
7175 + htab->elf.hgot->root.u.def.section->output_offset);
7176
7177 plt -= got;
7178
7179 if (plt + 0x8000 < 0x10000)
7180 {
7181 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7182 p += 4;
7183 bfd_put_32 (output_bfd, MTCTR_11, p);
7184 p += 4;
7185 bfd_put_32 (output_bfd, BCTR, p);
7186 p += 4;
7187 bfd_put_32 (output_bfd, NOP, p);
7188 p += 4;
7189 }
7190 else
7191 {
7192 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7193 p += 4;
7194 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7195 p += 4;
7196 bfd_put_32 (output_bfd, MTCTR_11, p);
7197 p += 4;
7198 bfd_put_32 (output_bfd, BCTR, p);
7199 p += 4;
7200 }
7201 }
7202 else
7203 {
7204 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7205 p += 4;
7206 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7207 p += 4;
7208 bfd_put_32 (output_bfd, MTCTR_11, p);
7209 p += 4;
7210 bfd_put_32 (output_bfd, BCTR, p);
7211 p += 4;
28e99bb6
AM		 7212
7213 /* We only need one non-PIC glink stub. */
7214 break;
a6aa5195
AM		 7215 }
7216 }
7217 else
7218 break;
7219 }
e1a9cb8e 7220
25dbc73a
AM		 7221 if (h->needs_copy)
7222 {
7223 asection *s;
7224 Elf_Internal_Rela rela;
7225 bfd_byte *loc;
e1a9cb8e 7226
25dbc73a 7227 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 7228
25dbc73a
AM		 7229#ifdef DEBUG
7230 fprintf (stderr, ", copy");
7231#endif
e1a9cb8e 7232
25dbc73a 7233 BFD_ASSERT (h->dynindx != -1);
86bbe32f 7234
4dc4a9a5 7235 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 7236 s = htab->relsbss;
7237 else
7238 s = htab->relbss;
7239 BFD_ASSERT (s != NULL);
e1a9cb8e 7240
25dbc73a
AM		 7241 rela.r_offset = (h->root.u.def.value
7242 + h->root.u.def.section->output_section->vma
7243 + h->root.u.def.section->output_offset);
7244 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7245 rela.r_addend = 0;
7246 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7247 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7248 }
e1a9cb8e 7249
25dbc73a
AM		 7250#ifdef DEBUG
7251 fprintf (stderr, "\n");
7252#endif
e1a9cb8e 7253
25dbc73a 7254 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB		 7255 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7256 || (!htab->is_vxworks
7257 && (h == htab->elf.hgot
7258 || strcmp (h->root.root.string,
7259 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 7260 sym->st_shndx = SHN_ABS;
e1a9cb8e 7261
25dbc73a
AM		 7262 return TRUE;
7263}
7264\f
7265static enum elf_reloc_type_class
7266ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 7267{
25dbc73a
AM		 7268 switch (ELF32_R_TYPE (rela->r_info))
7269 {
7270 case R_PPC_RELATIVE:
7271 return reloc_class_relative;
7272 case R_PPC_REL24:
7273 case R_PPC_ADDR24:
7274 case R_PPC_JMP_SLOT:
7275 return reloc_class_plt;
7276 case R_PPC_COPY:
7277 return reloc_class_copy;
7278 default:
7279 return reloc_class_normal;
7280 }
e1a9cb8e 7281}
25dbc73a
AM		 7282\f
7283/* Finish up the dynamic sections. */
e1a9cb8e 7284
25dbc73a
AM		 7285static bfd_boolean
7286ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7287 struct bfd_link_info *info)
e1a9cb8e 7288{
25dbc73a 7289 asection *sdyn;
9d8504b1 7290 asection *splt;
25dbc73a 7291 struct ppc_elf_link_hash_table *htab;
1fe44d79 7292 bfd_vma got;
9d8504b1 7293 bfd * dynobj;
e1a9cb8e 7294
25dbc73a
AM		 7295#ifdef DEBUG
7296 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7297#endif
6b0817e5 7298
25dbc73a 7299 htab = ppc_elf_hash_table (info);
9d8504b1
PB		 7300 dynobj = elf_hash_table (info)->dynobj;
7301 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7302 if (htab->is_vxworks)
7303 splt = bfd_get_section_by_name (dynobj, ".plt");
7304 else
7305 splt = NULL;
e1a9cb8e 7306
1fe44d79
AM		 7307 got = 0;
7308 if (htab->elf.hgot != NULL)
7309 got = (htab->elf.hgot->root.u.def.value
7310 + htab->elf.hgot->root.u.def.section->output_section->vma
7311 + htab->elf.hgot->root.u.def.section->output_offset);
7312
25dbc73a 7313 if (htab->elf.dynamic_sections_created)
e1a9cb8e 7314 {
25dbc73a 7315 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 7316
25dbc73a 7317 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 7318
25dbc73a
AM		 7319 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7320 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7321 for (; dyncon < dynconend; dyncon++)
7322 {
7323 Elf_Internal_Dyn dyn;
7324 asection *s;
e1a9cb8e 7325
9d8504b1 7326 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 7327
25dbc73a
AM		 7328 switch (dyn.d_tag)
7329 {
7330 case DT_PLTGOT:
9d8504b1
PB		 7331 if (htab->is_vxworks)
7332 s = htab->sgotplt;
7333 else
7334 s = htab->plt;
25dbc73a
AM		 7335 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7336 break;
86bbe32f 7337
25dbc73a
AM		 7338 case DT_PLTRELSZ:
7339 dyn.d_un.d_val = htab->relplt->size;
7340 break;
e1a9cb8e 7341
25dbc73a
AM		 7342 case DT_JMPREL:
7343 s = htab->relplt;
7344 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7345 break;
2f89ff8d 7346
1fe44d79
AM		 7347 case DT_PPC_GOT:
7348 dyn.d_un.d_ptr = got;
d7128ce4
AM		 7349 break;
7350
9d8504b1
PB		 7351 case DT_RELASZ:
7352 if (htab->is_vxworks)
7353 {
7354 if (htab->relplt)
7355 dyn.d_un.d_ptr -= htab->relplt->size;
7356 break;
7357 }
7358 continue;
7359
25dbc73a 7360 default:
7a2b07ff
NS		 7361 if (htab->is_vxworks
7362 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
7363 break;
25dbc73a
AM		 7364 continue;
7365 }
4c45e5c9 7366
25dbc73a
AM		 7367 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7368 }
7369 }
4c45e5c9 7370
25dbc73a
AM		 7371 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7372 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
3b36f7e6 7373 if (htab->got != NULL)
25dbc73a 7374 {
3b36f7e6
AM		 7375 unsigned char *p = htab->got->contents;
7376 bfd_vma val;
2f89ff8d 7377
636ce3f5 7378 p += htab->elf.hgot->root.u.def.value;
4a3dc543 7379 if (htab->plt_type == PLT_OLD)
d7128ce4 7380 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
3b36f7e6
AM		 7381
7382 val = 0;
7383 if (sdyn != NULL)
7384 val = sdyn->output_section->vma + sdyn->output_offset;
7385 bfd_put_32 (output_bfd, val, p);
25dbc73a
AM		 7386
7387 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7388 }
7389
9d8504b1
PB		 7390 /* Fill in the first entry in the VxWorks procedure linkage table. */
7391 if (splt && splt->size > 0)
7392 {
7393 /* Use the right PLT. */
7394 static const bfd_vma *plt_entry = NULL;
7395 plt_entry = info->shared ?
7396 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7397
7398 if (!info->shared)
7399 {
7400 bfd_vma got_value =
636ce3f5
AM		 7401 (htab->elf.hgot->root.u.def.section->output_section->vma
7402 + htab->elf.hgot->root.u.def.section->output_offset
7403 + htab->elf.hgot->root.u.def.value);
9d8504b1
PB		 7404 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7405
7406 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7407 splt->contents + 0);
7408 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7409 splt->contents + 4);
7410 }
7411 else
7412 {
7413 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7414 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7415 }
7416 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7417 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7418 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7419 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7420 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7421 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7422
7423 if (! info->shared)
7424 {
7425 Elf_Internal_Rela rela;
7426 bfd_byte *loc;
7427
7428 loc = htab->srelplt2->contents;
7429
7430 /* Output the @ha relocation for the first instruction. */
7431 rela.r_offset = (htab->plt->output_section->vma
7432 + htab->plt->output_offset
7433 + 2);
636ce3f5 7434 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7435 rela.r_addend = 0;
7436 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7437 loc += sizeof (Elf32_External_Rela);
7438
7439 /* Output the @l relocation for the second instruction. */
7440 rela.r_offset = (htab->plt->output_section->vma
7441 + htab->plt->output_offset
7442 + 6);
636ce3f5 7443 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7444 rela.r_addend = 0;
7445 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7446 loc += sizeof (Elf32_External_Rela);
7447
7448 /* Fix up the remaining relocations. They may have the wrong
7449 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7450 in which symbols were output. */
7451 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7452 {
7453 Elf_Internal_Rela rel;
7454
7455 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7456 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7457 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7458 loc += sizeof (Elf32_External_Rela);
7459
7460 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7461 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7462 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7463 loc += sizeof (Elf32_External_Rela);
7464
7465 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 7466 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB		 7467 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7468 loc += sizeof (Elf32_External_Rela);
7469 }
7470 }
7471 }
7472
d7128ce4
AM		 7473 if (htab->glink != NULL && htab->glink->contents != NULL)
7474 {
7475 unsigned char *p;
7476 unsigned char *endp;
a6aa5195 7477 bfd_vma res0;
d7128ce4 7478 unsigned int i;
a6aa5195
AM		 7479
7480 /*
7481 * PIC glink code is the following:
7482 *
7483 * # ith PLT code stub.
7484 * addis 11,30,(plt+(i-1)*4-got)@ha
7485 * lwz 11,(plt+(i-1)*4-got)@l(11)
7486 * mtctr 11
7487 * bctr
7488 *
7489 * # A table of branches, one for each plt entry.
7490 * # The idea is that the plt call stub loads ctr (and r11) with these
7491 * # addresses, so (r11 - res_0) gives the plt index * 4.
7492 * res_0: b PLTresolve
7493 * res_1: b PLTresolve
7494 * .
7495 * # Some number of entries towards the end can be nops
7496 * res_n_m3: nop
7497 * res_n_m2: nop
7498 * res_n_m1:
7499 *
7500 * PLTresolve:
7501 * addis 11,11,(1f-res_0)@ha
7502 * mflr 0
7503 * bcl 20,31,1f
7504 * 1: addi 11,11,(1b-res_0)@l
7505 * mflr 12
7506 * mtlr 0
7507 * sub 11,11,12 # r11 = index * 4
7508 * addis 12,12,(got+4-1b)@ha
7509 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7510 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7511 * mtctr 0
7512 * add 0,11,11
7513 * add 11,0,11 # r11 = index * 12 = reloc offset.
7514 * bctr
7515 */
7516 static const unsigned int pic_plt_resolve[] =
7517 {
7518 ADDIS_11_11,
7519 MFLR_0,
7520 BCL_20_31,
7521 ADDI_11_11,
7522 MFLR_12,
7523 MTLR_0,
7524 SUB_11_11_12,
7525 ADDIS_12_12,
7526 LWZ_0_12,
7527 LWZ_12_12,
7528 MTCTR_0,
7529 ADD_0_11_11,
7530 ADD_11_0_11,
7531 BCTR,
7532 NOP,
7533 NOP
7534 };
7535
d7128ce4
AM		 7536 static const unsigned int plt_resolve[] =
7537 {
a6aa5195
AM		 7538 LIS_12,
7539 ADDIS_11_11,
7540 LWZ_0_12,
7541 ADDI_11_11,
d7128ce4 7542 MTCTR_0,
7e8aeb9a 7543 ADD_0_11_11,
a6aa5195 7544 LWZ_12_12,
7e8aeb9a 7545 ADD_11_0_11,
d7128ce4
AM		 7546 BCTR,
7547 NOP,
7548 NOP,
a6aa5195
AM		 7549 NOP,
7550 NOP,
7551 NOP,
7552 NOP,
d7128ce4
AM		 7553 NOP
7554 };
7555
a6aa5195
AM		 7556 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7557 abort ();
7558 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM		 7559 abort ();
7560
a6aa5195 7561 /* Build the branch table, one for each plt entry (less one),
86b9da88 7562 and perhaps some padding. */
a6aa5195
AM		 7563 p = htab->glink->contents;
7564 p += htab->glink_pltresolve;
86b9da88
AM		 7565 endp = htab->glink->contents;
7566 endp += htab->glink->size - GLINK_PLTRESOLVE;
7567 while (p < endp - 8 * 4)
7568 {
7569 bfd_put_32 (output_bfd, B + endp - p, p);
7570 p += 4;
7571 }
7572 while (p < endp)
7573 {
7574 bfd_put_32 (output_bfd, NOP, p);
7575 p += 4;
7576 }
7577
7e8aeb9a 7578 res0 = (htab->glink_pltresolve
86b9da88
AM		 7579 + htab->glink->output_section->vma
7580 + htab->glink->output_offset);
7581
7582 /* Last comes the PLTresolve stub. */
7e8aeb9a
AM		 7583 if (info->shared || info->pie)
7584 {
a6aa5195 7585 bfd_vma bcl;
d7128ce4 7586
a6aa5195 7587 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 7588 {
a6aa5195 7589 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM		 7590 p += 4;
7591 }
a6aa5195
AM		 7592 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7593
7594 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7595 + htab->glink->output_section->vma
7596 + htab->glink->output_offset);
7597
7598 bfd_put_32 (output_bfd,
7599 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7600 bfd_put_32 (output_bfd,
7601 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7602 bfd_put_32 (output_bfd,
7603 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7604 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7605 {
7606 bfd_put_32 (output_bfd,
7607 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7608 bfd_put_32 (output_bfd,
7609 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7610 }
7611 else
7612 {
7613 bfd_put_32 (output_bfd,
7614 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7615 bfd_put_32 (output_bfd,
7616 LWZ_12_12 + 4, p + 9*4);
7617 }
7e8aeb9a
AM		 7618 }
7619 else
d7128ce4 7620 {
a6aa5195 7621 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM		 7622 {
7623 bfd_put_32 (output_bfd, plt_resolve[i], p);
7624 p += 4;
7625 }
a6aa5195
AM		 7626 p -= 4 * ARRAY_SIZE (plt_resolve);
7627
7628 bfd_put_32 (output_bfd,
7629 LIS_12 + PPC_HA (got + 4), p + 0*4);
7630 bfd_put_32 (output_bfd,
7631 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7632 bfd_put_32 (output_bfd,
7633 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7634 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7635 {
7636 bfd_put_32 (output_bfd,
7637 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7638 bfd_put_32 (output_bfd,
7639 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7640 }
7641 else
7642 {
7643 bfd_put_32 (output_bfd,
7644 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7645 bfd_put_32 (output_bfd,
7646 LWZ_12_12 + 4, p + 6*4);
7647 }
d7128ce4 7648 }
d7128ce4
AM		 7649 }
7650
25dbc73a
AM		 7651 return TRUE;
7652}
e1a9cb8e 7653\f
252b5132
RH		 7654#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7655#define TARGET_LITTLE_NAME "elf32-powerpcle"
7656#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7657#define TARGET_BIG_NAME "elf32-powerpc"
7658#define ELF_ARCH bfd_arch_powerpc
7659#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC		 7660#ifdef __QNXTARGET__
7661#define ELF_MAXPAGESIZE 0x1000
7662#else
252b5132 7663#define ELF_MAXPAGESIZE 0x10000
d0facd1b 7664#endif
b1342370 7665#define ELF_MINPAGESIZE 0x1000
24718e3b 7666#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH		 7667#define elf_info_to_howto ppc_elf_info_to_howto
7668
7669#ifdef EM_CYGNUS_POWERPC
7670#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
7671#endif
7672
7673#ifdef EM_PPC_OLD
7674#define ELF_MACHINE_ALT2 EM_PPC_OLD
7675#endif
7676
7677#define elf_backend_plt_not_loaded 1
252b5132 7678#define elf_backend_can_gc_sections 1
51b64d56 7679#define elf_backend_can_refcount 1
b491616a 7680#define elf_backend_rela_normal 1
252b5132 7681
43c40ab2 7682#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 7683#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 7684#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 7685#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
157090f7 7686#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 7687#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 7688#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
252b5132 7689
feee612b 7690#define elf_backend_object_p ppc_elf_object_p
252b5132
RH		 7691#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
7692#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
7693#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
7694#define elf_backend_relocate_section ppc_elf_relocate_section
7695#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
7696#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 7697#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH		 7698#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
7699#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
7700#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
7701#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
7702#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
7703#define elf_backend_fake_sections ppc_elf_fake_sections
7704#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ		 7705#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
7706#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 7707#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 7708#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM		 7709#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
7710#define elf_backend_final_write_processing ppc_elf_final_write_processing
7711#define elf_backend_write_section ppc_elf_write_section
551b43fd 7712#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 7713#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 7714#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 7715#define elf_backend_init_index_section _bfd_elf_init_1_index_section
252b5132
RH		 7716
7717#include "elf32-target.h"
9d8504b1
PB		 7718
7719/* VxWorks Target */
7720
7721#undef TARGET_LITTLE_SYM
7722#undef TARGET_LITTLE_NAME
7723
7724#undef TARGET_BIG_SYM
7725#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
7726#undef TARGET_BIG_NAME
7727#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
7728
d5e3d971
PB		 7729/* VxWorks uses the elf default section flags for .plt. */
7730static const struct bfd_elf_special_section *
7731ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 7732{
d5e3d971
PB		 7733 if (sec->name == NULL)
7734 return NULL;
7735
7736 if (strcmp (sec->name, ".plt") == 0)
7737 return _bfd_elf_get_sec_type_attr (abfd, sec);
7738
7739 return ppc_elf_get_sec_type_attr (abfd, sec);
7740}
9d8504b1
PB		 7741
7742/* Like ppc_elf_link_hash_table_create, but overrides
7743 appropriately for VxWorks. */
7744static struct bfd_link_hash_table *
7745ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
7746{
7747 struct bfd_link_hash_table *ret;
7748
7749 ret = ppc_elf_link_hash_table_create (abfd);
7750 if (ret)
7751 {
7752 struct ppc_elf_link_hash_table *htab
7753 = (struct ppc_elf_link_hash_table *)ret;
7754 htab->is_vxworks = 1;
4a3dc543 7755 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB		 7756 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
7757 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
7758 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
7759 }
7760 return ret;
7761}
7762
7763/* Tweak magic VxWorks symbols as they are loaded. */
7764static bfd_boolean
7765ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
7766 struct bfd_link_info *info,
7767 Elf_Internal_Sym *sym,
7768 const char **namep ATTRIBUTE_UNUSED,
7769 flagword *flagsp ATTRIBUTE_UNUSED,
7770 asection **secp,
7771 bfd_vma *valp)
7772{
7773 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
7774 valp))
7775 return FALSE;
7776
7777 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
7778}
7779
9d8504b1
PB		 7780static void
7781ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
7782{
7783 ppc_elf_final_write_processing(abfd, linker);
7784 elf_vxworks_final_write_processing(abfd, linker);
7785}
7786
7787/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
7788 define it. */
7789#undef elf_backend_want_plt_sym
7790#define elf_backend_want_plt_sym 1
7791#undef elf_backend_want_got_plt
7792#define elf_backend_want_got_plt 1
7793#undef elf_backend_got_symbol_offset
7794#define elf_backend_got_symbol_offset 0
7795#undef elf_backend_plt_not_loaded
7796#define elf_backend_plt_not_loaded 0
7797#undef elf_backend_plt_readonly
7798#define elf_backend_plt_readonly 1
7799#undef elf_backend_got_header_size
7800#define elf_backend_got_header_size 12
7801
7802#undef bfd_elf32_bfd_link_hash_table_create
7803#define bfd_elf32_bfd_link_hash_table_create \
7804 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB		 7805#undef elf_backend_add_symbol_hook
7806#define elf_backend_add_symbol_hook \
7807 ppc_elf_vxworks_add_symbol_hook
7808#undef elf_backend_link_output_symbol_hook
7809#define elf_backend_link_output_symbol_hook \
9c72ff84 7810 elf_vxworks_link_output_symbol_hook
9d8504b1
PB		 7811#undef elf_backend_final_write_processing
7812#define elf_backend_final_write_processing \
7813 ppc_elf_vxworks_final_write_processing
d5e3d971
PB		 7814#undef elf_backend_get_sec_type_attr
7815#define elf_backend_get_sec_type_attr \
7816 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB		 7817#undef elf_backend_emit_relocs
7818#define elf_backend_emit_relocs \
7819 elf_vxworks_emit_relocs
7820
7821#undef elf32_bed
7822#define elf32_bed ppc_elf_vxworks_bed
7823
7824#include "elf32-target.h"
GDB Binutils - Deliverables
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