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[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
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252b5132 1/* PowerPC-specific support for 32-bit ELF
051d5130 2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
ab96bf03 3 2004, 2005, 2006, 2007 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{
25dbc73a 1744 if (abfd->tdata.any == NULL)
62d7a5f6
AM		 1745 {
1746 bfd_size_type amt = sizeof (struct ppc_elf_obj_tdata);
1747 abfd->tdata.any = bfd_zalloc (abfd, amt);
1748 if (abfd->tdata.any == NULL)
1749 return FALSE;
1750 }
1751 return bfd_elf_mkobject (abfd);
25dbc73a 1752}
7619e7c7 1753
25dbc73a
AM		 1754/* Fix bad default arch selected for a 32 bit input bfd when the
1755 default is 64 bit. */
7619e7c7 1756
25dbc73a
AM		 1757static bfd_boolean
1758ppc_elf_object_p (bfd *abfd)
1759{
1760 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1761 {
1762 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 1763
25dbc73a
AM		 1764 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1765 {
1766 /* Relies on arch after 64 bit default being 32 bit default. */
1767 abfd->arch_info = abfd->arch_info->next;
1768 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1769 }
1770 }
1771 return TRUE;
1772}
7619e7c7 1773
25dbc73a 1774/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 1775
25dbc73a
AM		 1776static bfd_boolean
1777ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1778{
1779 BFD_ASSERT (!elf_flags_init (abfd)
1780 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 1781
25dbc73a
AM		 1782 elf_elfheader (abfd)->e_flags = flags;
1783 elf_flags_init (abfd) = TRUE;
1784 return TRUE;
1785}
1786
25dbc73a 1787/* Support for core dump NOTE sections. */
deaaf2f3 1788
b34976b6 1789static bfd_boolean
25dbc73a 1790ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 1791{
25dbc73a
AM		 1792 int offset;
1793 unsigned int size;
252b5132 1794
25dbc73a
AM		 1795 switch (note->descsz)
1796 {
1797 default:
1798 return FALSE;
252b5132 1799
25dbc73a
AM		 1800 case 268: /* Linux/PPC. */
1801 /* pr_cursig */
1802 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 1803
25dbc73a
AM		 1804 /* pr_pid */
1805 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 1806
25dbc73a
AM		 1807 /* pr_reg */
1808 offset = 72;
1809 size = 192;
deaaf2f3 1810
25dbc73a
AM		 1811 break;
1812 }
deaaf2f3 1813
25dbc73a
AM		 1814 /* Make a ".reg/999" section. */
1815 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1816 size, note->descpos + offset);
1817}
252b5132 1818
25dbc73a
AM		 1819static bfd_boolean
1820ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1821{
1822 switch (note->descsz)
deaaf2f3 1823 {
25dbc73a
AM		 1824 default:
1825 return FALSE;
deaaf2f3 1826
25dbc73a
AM		 1827 case 128: /* Linux/PPC elf_prpsinfo. */
1828 elf_tdata (abfd)->core_program
1829 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1830 elf_tdata (abfd)->core_command
1831 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1832 }
9abc968f 1833
25dbc73a
AM		 1834 /* Note that for some reason, a spurious space is tacked
1835 onto the end of the args in some (at least one anyway)
1836 implementations, so strip it off if it exists. */
70bccea4 1837
25dbc73a
AM		 1838 {
1839 char *command = elf_tdata (abfd)->core_command;
1840 int n = strlen (command);
70bccea4 1841
25dbc73a
AM		 1842 if (0 < n && command[n - 1] == ' ')
1843 command[n - 1] = '\0';
1844 }
deaaf2f3 1845
25dbc73a
AM		 1846 return TRUE;
1847}
deaaf2f3 1848
183e98be
AM		 1849static char *
1850ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1851{
1852 switch (note_type)
1853 {
1854 default:
1855 return NULL;
1856
1857 case NT_PRPSINFO:
1858 {
1859 char data[128];
1860 va_list ap;
1861
1862 va_start (ap, note_type);
1863 memset (data, 0, 32);
1864 strncpy (data + 32, va_arg (ap, const char *), 16);
1865 strncpy (data + 48, va_arg (ap, const char *), 80);
1866 va_end (ap);
1867 return elfcore_write_note (abfd, buf, bufsiz,
1868 "CORE", note_type, data, sizeof (data));
1869 }
1870
1871 case NT_PRSTATUS:
1872 {
1873 char data[268];
1874 va_list ap;
1875 long pid;
1876 int cursig;
1877 const void *greg;
1878
1879 va_start (ap, note_type);
1880 memset (data, 0, 72);
1881 pid = va_arg (ap, long);
1882 bfd_put_32 (abfd, pid, data + 24);
1883 cursig = va_arg (ap, int);
1884 bfd_put_16 (abfd, cursig, data + 12);
1885 greg = va_arg (ap, const void *);
1886 memcpy (data + 72, greg, 192);
1887 memset (data + 264, 0, 4);
1888 va_end (ap);
1889 return elfcore_write_note (abfd, buf, bufsiz,
1890 "CORE", note_type, data, sizeof (data));
1891 }
1892 }
1893}
1894
25dbc73a
AM		 1895/* Return address for Ith PLT stub in section PLT, for relocation REL
1896 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 1897
25dbc73a
AM		 1898static bfd_vma
1899ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1900 const asection *plt ATTRIBUTE_UNUSED,
1901 const arelent *rel)
1902{
1903 return rel->address;
1904}
deaaf2f3 1905
25dbc73a 1906/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L		 1907 is called when bfd_section_from_shdr finds a section with an unknown
1908 type. */
deaaf2f3 1909
25dbc73a 1910static bfd_boolean
6dc132d9
L		 1911ppc_elf_section_from_shdr (bfd *abfd,
1912 Elf_Internal_Shdr *hdr,
1913 const char *name,
1914 int shindex)
25dbc73a
AM		 1915{
1916 asection *newsect;
1917 flagword flags;
d1c6de6f 1918
6dc132d9 1919 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 1920 return FALSE;
deaaf2f3 1921
25dbc73a
AM		 1922 newsect = hdr->bfd_section;
1923 flags = bfd_get_section_flags (abfd, newsect);
1924 if (hdr->sh_flags & SHF_EXCLUDE)
1925 flags |= SEC_EXCLUDE;
9abc968f 1926
25dbc73a
AM		 1927 if (hdr->sh_type == SHT_ORDERED)
1928 flags |= SEC_SORT_ENTRIES;
d1c6de6f 1929
25dbc73a
AM		 1930 bfd_set_section_flags (abfd, newsect, flags);
1931 return TRUE;
1932}
1933
1934/* Set up any other section flags and such that may be necessary. */
1935
1936static bfd_boolean
1937ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1938 Elf_Internal_Shdr *shdr,
1939 asection *asect)
1940{
d30e8e7c 1941 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
25dbc73a
AM		 1942 shdr->sh_flags |= SHF_EXCLUDE;
1943
1944 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1945 shdr->sh_type = SHT_ORDERED;
1946
1947 return TRUE;
1948}
1949
1950/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1951 need to bump up the number of section headers. */
1952
1953static int
a6b96beb
AM		 1954ppc_elf_additional_program_headers (bfd *abfd,
1955 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM		 1956{
1957 asection *s;
1958 int ret = 0;
d1c6de6f 1959
25dbc73a
AM		 1960 s = bfd_get_section_by_name (abfd, ".sbss2");
1961 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1962 ++ret;
d1c6de6f 1963
25dbc73a
AM		 1964 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1965 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1966 ++ret;
deaaf2f3 1967
25dbc73a
AM		 1968 return ret;
1969}
deaaf2f3 1970
25dbc73a
AM		 1971/* Add extra PPC sections -- Note, for now, make .sbss2 and
1972 .PPC.EMB.sbss0 a normal section, and not a bss section so
1973 that the linker doesn't crater when trying to make more than
1974 2 sections. */
e656e369 1975
b35d266b 1976static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 1977{
0112cd26
NC		 1978 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
1979 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
1980 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
1981 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1982 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
1983 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
1984 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
1985 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
1986 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
1987 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 1988};
1989
551b43fd
AM		 1990/* This is what we want for new plt/got. */
1991static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 1992 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM		 1993
1994static const struct bfd_elf_special_section *
1995ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 1996{
b35d266b 1997 const struct bfd_elf_special_section *ssect;
551b43fd
AM		 1998
1999 /* See if this is one of the special sections. */
2000 if (sec->name == NULL)
2001 return NULL;
2002
2003 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2004 sec->use_rela_p);
2005 if (ssect != NULL)
2006 {
2007 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2008 ssect = &ppc_alt_plt;
2009 return ssect;
2010 }
2011
2012 return _bfd_elf_get_sec_type_attr (abfd, sec);
2013}
25dbc73a
AM		 2014\f
2015/* Very simple linked list structure for recording apuinfo values. */
2016typedef struct apuinfo_list
2017{
2018 struct apuinfo_list *next;
2019 unsigned long value;
2020}
2021apuinfo_list;
e656e369 2022
25dbc73a 2023static apuinfo_list *head;
deaaf2f3 2024
deaaf2f3 2025
25dbc73a
AM		 2026static void
2027apuinfo_list_init (void)
2028{
2029 head = NULL;
2030}
9abc968f 2031
25dbc73a
AM		 2032static void
2033apuinfo_list_add (unsigned long value)
2034{
2035 apuinfo_list *entry = head;
deaaf2f3 2036
25dbc73a
AM		 2037 while (entry != NULL)
2038 {
2039 if (entry->value == value)
2040 return;
2041 entry = entry->next;
2042 }
b4a38de6 2043
25dbc73a
AM		 2044 entry = bfd_malloc (sizeof (* entry));
2045 if (entry == NULL)
2046 return;
e656e369 2047
25dbc73a
AM		 2048 entry->value = value;
2049 entry->next = head;
2050 head = entry;
2051}
9abc968f 2052
25dbc73a
AM		 2053static unsigned
2054apuinfo_list_length (void)
2055{
2056 apuinfo_list *entry;
2057 unsigned long count;
9abc968f 2058
25dbc73a
AM		 2059 for (entry = head, count = 0;
2060 entry;
2061 entry = entry->next)
2062 ++ count;
e656e369 2063
25dbc73a
AM		 2064 return count;
2065}
eea6121a 2066
25dbc73a
AM		 2067static inline unsigned long
2068apuinfo_list_element (unsigned long number)
2069{
2070 apuinfo_list * entry;
e656e369 2071
25dbc73a
AM		 2072 for (entry = head;
2073 entry && number --;
2074 entry = entry->next)
2075 ;
252b5132 2076
25dbc73a
AM		 2077 return entry ? entry->value : 0;
2078}
2079
2080static void
2081apuinfo_list_finish (void)
2082{
2083 apuinfo_list *entry;
2084
2085 for (entry = head; entry;)
252b5132 2086 {
25dbc73a
AM		 2087 apuinfo_list *next = entry->next;
2088 free (entry);
2089 entry = next;
2090 }
9abc968f 2091
25dbc73a
AM		 2092 head = NULL;
2093}
9abc968f 2094
25dbc73a
AM		 2095#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2096#define APUINFO_LABEL "APUinfo"
9abc968f 2097
25dbc73a
AM		 2098/* Scan the input BFDs and create a linked list of
2099 the APUinfo values that will need to be emitted. */
9abc968f 2100
25dbc73a
AM		 2101static void
2102ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2103{
2104 bfd *ibfd;
2105 asection *asec;
2106 char *buffer;
2107 unsigned num_input_sections;
2108 bfd_size_type output_section_size;
2109 unsigned i;
2110 unsigned num_entries;
2111 unsigned long offset;
2112 unsigned long length;
2113 const char *error_message = NULL;
9abc968f 2114
25dbc73a
AM		 2115 if (link_info == NULL)
2116 return;
9abc968f 2117
25dbc73a
AM		 2118 /* Scan the input bfds, looking for apuinfo sections. */
2119 num_input_sections = 0;
2120 output_section_size = 0;
252b5132 2121
25dbc73a 2122 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2123 {
25dbc73a
AM		 2124 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2125 if (asec)
252b5132 2126 {
25dbc73a
AM		 2127 ++ num_input_sections;
2128 output_section_size += asec->size;
252b5132 2129 }
252b5132
RH		 2130 }
2131
25dbc73a
AM		 2132 /* We need at least one input sections
2133 in order to make merging worthwhile. */
2134 if (num_input_sections < 1)
2135 return;
deaaf2f3 2136
25dbc73a
AM		 2137 /* Just make sure that the output section exists as well. */
2138 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2139 if (asec == NULL)
2140 return;
252b5132 2141
25dbc73a
AM		 2142 /* Allocate a buffer for the contents of the input sections. */
2143 buffer = bfd_malloc (output_section_size);
2144 if (buffer == NULL)
2145 return;
252b5132 2146
25dbc73a
AM		 2147 offset = 0;
2148 apuinfo_list_init ();
252b5132 2149
25dbc73a
AM		 2150 /* Read in the input sections contents. */
2151 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2152 {
25dbc73a
AM		 2153 unsigned long datum;
2154 char *ptr;
252b5132 2155
25dbc73a
AM		 2156 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2157 if (asec == NULL)
2158 continue;
252b5132 2159
25dbc73a
AM		 2160 length = asec->size;
2161 if (length < 24)
2162 {
2163 error_message = _("corrupt or empty %s section in %B");
2164 goto fail;
2165 }
252b5132 2166
25dbc73a
AM		 2167 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2168 || (bfd_bread (buffer + offset, length, ibfd) != length))
2169 {
2170 error_message = _("unable to read in %s section from %B");
2171 goto fail;
2172 }
252b5132 2173
25dbc73a
AM		 2174 /* Process the contents of the section. */
2175 ptr = buffer + offset;
2176 error_message = _("corrupt %s section in %B");
252b5132 2177
25dbc73a
AM		 2178 /* Verify the contents of the header. Note - we have to
2179 extract the values this way in order to allow for a
2180 host whose endian-ness is different from the target. */
2181 datum = bfd_get_32 (ibfd, ptr);
2182 if (datum != sizeof APUINFO_LABEL)
2183 goto fail;
252b5132 2184
25dbc73a
AM		 2185 datum = bfd_get_32 (ibfd, ptr + 8);
2186 if (datum != 0x2)
2187 goto fail;
252b5132 2188
25dbc73a
AM		 2189 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2190 goto fail;
252b5132 2191
25dbc73a
AM		 2192 /* Get the number of bytes used for apuinfo entries. */
2193 datum = bfd_get_32 (ibfd, ptr + 4);
2194 if (datum + 20 != length)
2195 goto fail;
2196
2197 /* Make sure that we do not run off the end of the section. */
2198 if (offset + length > output_section_size)
2199 goto fail;
2200
2201 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2202 for (i = 0; i < datum; i += 4)
2203 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2204
2205 /* Update the offset. */
2206 offset += length;
252b5132
RH		 2207 }
2208
25dbc73a 2209 error_message = NULL;
252b5132 2210
25dbc73a
AM		 2211 /* Compute the size of the output section. */
2212 num_entries = apuinfo_list_length ();
2213 output_section_size = 20 + num_entries * 4;
252b5132 2214
25dbc73a
AM		 2215 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2216
2217 if (! bfd_set_section_size (abfd, asec, output_section_size))
2218 ibfd = abfd,
2219 error_message = _("warning: unable to set size of %s section in %B");
2220
2221 fail:
2222 free (buffer);
2223
2224 if (error_message)
2225 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2226}
252b5132 2227
25dbc73a
AM		 2228/* Prevent the output section from accumulating the input sections'
2229 contents. We have already stored this in our linked list structure. */
252b5132 2230
25dbc73a
AM		 2231static bfd_boolean
2232ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2233 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM		 2234 asection *asec,
2235 bfd_byte *contents ATTRIBUTE_UNUSED)
2236{
2237 return (apuinfo_list_length ()
2238 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
252b5132
RH		 2239}
2240
25dbc73a
AM		 2241/* Finally we can generate the output section. */
2242
2243static void
2244ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2245{
25dbc73a
AM		 2246 bfd_byte *buffer;
2247 asection *asec;
2248 unsigned i;
2249 unsigned num_entries;
2250 bfd_size_type length;
7619e7c7 2251
25dbc73a
AM		 2252 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2253 if (asec == NULL)
2254 return;
2255
2256 if (apuinfo_list_length () == 0)
2257 return;
2258
2259 length = asec->size;
2260 if (length < 20)
2261 return;
2262
2263 buffer = bfd_malloc (length);
2264 if (buffer == NULL)
7619e7c7 2265 {
25dbc73a
AM		 2266 (*_bfd_error_handler)
2267 (_("failed to allocate space for new APUinfo section."));
2268 return;
7619e7c7 2269 }
7619e7c7 2270
25dbc73a
AM		 2271 /* Create the apuinfo header. */
2272 num_entries = apuinfo_list_length ();
2273 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2274 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2275 bfd_put_32 (abfd, 0x2, buffer + 8);
2276 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2277
25dbc73a
AM		 2278 length = 20;
2279 for (i = 0; i < num_entries; i++)
feee612b 2280 {
25dbc73a
AM		 2281 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2282 length += 4;
feee612b 2283 }
feee612b 2284
25dbc73a
AM		 2285 if (length != asec->size)
2286 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2287
25dbc73a
AM		 2288 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2289 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2290
25dbc73a
AM		 2291 free (buffer);
2292
2293 apuinfo_list_finish ();
252b5132 2294}
25dbc73a
AM		 2295\f
2296/* The following functions are specific to the ELF linker, while
2297 functions above are used generally. They appear in this file more
2298 or less in the order in which they are called. eg.
2299 ppc_elf_check_relocs is called early in the link process,
2300 ppc_elf_finish_dynamic_sections is one of the last functions
2301 called. */
252b5132 2302
25dbc73a
AM		 2303/* The PPC linker needs to keep track of the number of relocs that it
2304 decides to copy as dynamic relocs in check_relocs for each symbol.
2305 This is so that it can later discard them if they are found to be
2306 unnecessary. We store the information in a field extending the
2307 regular ELF linker hash table. */
ae9a127f 2308
25dbc73a 2309struct ppc_elf_dyn_relocs
252b5132 2310{
25dbc73a 2311 struct ppc_elf_dyn_relocs *next;
252b5132 2312
25dbc73a
AM		 2313 /* The input section of the reloc. */
2314 asection *sec;
252b5132 2315
25dbc73a
AM		 2316 /* Total number of relocs copied for the input section. */
2317 bfd_size_type count;
252b5132 2318
25dbc73a
AM		 2319 /* Number of pc-relative relocs copied for the input section. */
2320 bfd_size_type pc_count;
2321};
252b5132 2322
a6aa5195
AM		 2323/* Track PLT entries needed for a given symbol. We might need more
2324 than one glink entry per symbol. */
2325struct plt_entry
2326{
2327 struct plt_entry *next;
2328
2329 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2330 This field stores the offset into .got2 used to initialise the
2331 GOT pointer reg. It will always be at least 32768 (and for
2332 current gcc this is the only offset used). */
2333 bfd_vma addend;
2334
2335 /* The .got2 section. */
2336 asection *sec;
2337
2338 /* PLT refcount or offset. */
2339 union
2340 {
2341 bfd_signed_vma refcount;
2342 bfd_vma offset;
2343 } plt;
2344
2345 /* .glink stub offset. */
2346 bfd_vma glink_offset;
2347};
2348
25dbc73a
AM		 2349/* Of those relocs that might be copied as dynamic relocs, this macro
2350 selects those that must be copied when linking a shared library,
2351 even when the symbol is local. */
252b5132 2352
25dbc73a
AM		 2353#define MUST_BE_DYN_RELOC(RTYPE) \
2354 ((RTYPE) != R_PPC_REL24 \
2355 && (RTYPE) != R_PPC_REL14 \
2356 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2357 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2358 && (RTYPE) != R_PPC_REL32)
252b5132 2359
25dbc73a
AM		 2360/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2361 copying dynamic variables from a shared lib into an app's dynbss
2362 section, and instead use a dynamic relocation to point into the
2363 shared lib. */
2364#define ELIMINATE_COPY_RELOCS 1
252b5132 2365
25dbc73a 2366/* PPC ELF linker hash entry. */
252b5132 2367
25dbc73a
AM		 2368struct ppc_elf_link_hash_entry
2369{
2370 struct elf_link_hash_entry elf;
252b5132 2371
25dbc73a
AM		 2372 /* If this symbol is used in the linker created sections, the processor
2373 specific backend uses this field to map the field into the offset
2374 from the beginning of the section. */
2375 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2376
25dbc73a
AM		 2377 /* Track dynamic relocs copied for this symbol. */
2378 struct ppc_elf_dyn_relocs *dyn_relocs;
252b5132 2379
25dbc73a
AM		 2380 /* Contexts in which symbol is used in the GOT (or TOC).
2381 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2382 corresponding relocs are encountered during check_relocs.
2383 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2384 indicate the corresponding GOT entry type is not needed. */
2385#define TLS_GD 1 /* GD reloc. */
2386#define TLS_LD 2 /* LD reloc. */
2387#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2388#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2389#define TLS_TLS 16 /* Any TLS reloc. */
2390#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2391 char tls_mask;
4dc4a9a5
DJ		 2392
2393 /* Nonzero if we have seen a small data relocation referring to this
2394 symbol. */
2395 unsigned char has_sda_refs;
25dbc73a 2396};
252b5132 2397
25dbc73a
AM		 2398#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2399
2400/* PPC ELF linker hash table. */
2401
2402struct ppc_elf_link_hash_table
2403{
2404 struct elf_link_hash_table elf;
2405
2406 /* Short-cuts to get to dynamic linker sections. */
2407 asection *got;
2408 asection *relgot;
d7128ce4 2409 asection *glink;
25dbc73a
AM		 2410 asection *plt;
2411 asection *relplt;
2412 asection *dynbss;
2413 asection *relbss;
2414 asection *dynsbss;
2415 asection *relsbss;
c9a2f333 2416 elf_linker_section_t sdata[2];
25dbc73a
AM		 2417 asection *sbss;
2418
016687f8
AM		 2419 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2420 asection *srelplt2;
2421
2422 /* The .got.plt section (VxWorks only)*/
2423 asection *sgotplt;
2424
25dbc73a
AM		 2425 /* Shortcut to .__tls_get_addr. */
2426 struct elf_link_hash_entry *tls_get_addr;
252b5132 2427
016687f8
AM		 2428 /* The bfd that forced an old-style PLT. */
2429 bfd *old_bfd;
2430
25dbc73a
AM		 2431 /* TLS local dynamic got entry handling. */
2432 union {
2433 bfd_signed_vma refcount;
2434 bfd_vma offset;
2435 } tlsld_got;
252b5132 2436
d7128ce4
AM		 2437 /* Offset of PltResolve function in glink. */
2438 bfd_vma glink_pltresolve;
2439
3b36f7e6
AM		 2440 /* Size of reserved GOT entries. */
2441 unsigned int got_header_size;
2442 /* Non-zero if allocating the header left a gap. */
2443 unsigned int got_gap;
2444
4a3dc543
RS		 2445 /* The type of PLT we have chosen to use. */
2446 enum ppc_elf_plt_type plt_type;
2447
0ba07910
AM		 2448 /* Set if we should emit symbols for stubs. */
2449 unsigned int emit_stub_syms:1;
2450
9d8504b1 2451 /* True if the target system is VxWorks. */
016687f8 2452 unsigned int is_vxworks:1;
9d8504b1
PB		 2453
2454 /* The size of PLT entries. */
2455 int plt_entry_size;
2456 /* The distance between adjacent PLT slots. */
2457 int plt_slot_size;
2458 /* The size of the first PLT entry. */
2459 int plt_initial_entry_size;
016687f8
AM		 2460
2461 /* Small local sym to section mapping cache. */
2462 struct sym_sec_cache sym_sec;
25dbc73a 2463};
252b5132 2464
25dbc73a 2465/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2466
25dbc73a
AM		 2467#define ppc_elf_hash_table(p) \
2468 ((struct ppc_elf_link_hash_table *) (p)->hash)
252b5132 2469
25dbc73a 2470/* Create an entry in a PPC ELF linker hash table. */
252b5132 2471
25dbc73a
AM		 2472static struct bfd_hash_entry *
2473ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2474 struct bfd_hash_table *table,
2475 const char *string)
252b5132 2476{
25dbc73a
AM		 2477 /* Allocate the structure if it has not already been allocated by a
2478 subclass. */
2479 if (entry == NULL)
2480 {
2481 entry = bfd_hash_allocate (table,
2482 sizeof (struct ppc_elf_link_hash_entry));
2483 if (entry == NULL)
2484 return entry;
2485 }
252b5132 2486
25dbc73a
AM		 2487 /* Call the allocation method of the superclass. */
2488 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2489 if (entry != NULL)
2490 {
2491 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2492 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2493 ppc_elf_hash_entry (entry)->tls_mask = 0;
2494 }
252b5132 2495
25dbc73a 2496 return entry;
252b5132 2497}
3dab13f6 2498
25dbc73a 2499/* Create a PPC ELF linker hash table. */
3dab13f6 2500
25dbc73a
AM		 2501static struct bfd_link_hash_table *
2502ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2503{
25dbc73a 2504 struct ppc_elf_link_hash_table *ret;
3dab13f6 2505
25dbc73a
AM		 2506 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2507 if (ret == NULL)
2508 return NULL;
3dab13f6 2509
66eb6687
AM		 2510 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2511 ppc_elf_link_hash_newfunc,
2512 sizeof (struct ppc_elf_link_hash_entry)))
3dab13f6 2513 {
25dbc73a
AM		 2514 free (ret);
2515 return NULL;
2516 }
58111eb7 2517
a6aa5195
AM		 2518 ret->elf.init_plt_refcount.refcount = 0;
2519 ret->elf.init_plt_refcount.glist = NULL;
2520 ret->elf.init_plt_offset.offset = 0;
2521 ret->elf.init_plt_offset.glist = NULL;
2522
c9a2f333
AM		 2523 ret->sdata[0].name = ".sdata";
2524 ret->sdata[0].sym_name = "_SDA_BASE_";
2525 ret->sdata[0].bss_name = ".sbss";
2526
2527 ret->sdata[1].name = ".sdata2";
2528 ret->sdata[1].sym_name = "_SDA2_BASE_";
2529 ret->sdata[1].bss_name = ".sbss2";
2530
9d8504b1
PB		 2531 ret->plt_entry_size = 12;
2532 ret->plt_slot_size = 8;
2533 ret->plt_initial_entry_size = 72;
9d8504b1 2534
25dbc73a
AM		 2535 return &ret->elf.root;
2536}
3dab13f6 2537
9d8504b1 2538/* Create .got and the related sections. */
3dab13f6 2539
25dbc73a
AM		 2540static bfd_boolean
2541ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2542{
2543 struct ppc_elf_link_hash_table *htab;
2544 asection *s;
2545 flagword flags;
3dab13f6 2546
25dbc73a
AM		 2547 if (!_bfd_elf_create_got_section (abfd, info))
2548 return FALSE;
3dab13f6 2549
25dbc73a
AM		 2550 htab = ppc_elf_hash_table (info);
2551 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2552 if (s == NULL)
2553 abort ();
3dab13f6 2554
9d8504b1
PB		 2555 if (htab->is_vxworks)
2556 {
2557 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2558 if (!htab->sgotplt)
2559 abort ();
2560 }
2561 else
2562 {
2563 /* The powerpc .got has a blrl instruction in it. Mark it
2564 executable. */
2565 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2566 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2567 if (!bfd_set_section_flags (abfd, s, flags))
2568 return FALSE;
2569 }
3dab13f6 2570
3b36f7e6
AM		 2571 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2572 | SEC_LINKER_CREATED | SEC_READONLY);
2573 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
25dbc73a 2574 if (!htab->relgot
25dbc73a
AM		 2575 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2576 return FALSE;
3dab13f6 2577
25dbc73a
AM		 2578 return TRUE;
2579}
3dab13f6 2580
25dbc73a
AM		 2581/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2582 to output sections (just like _bfd_elf_create_dynamic_sections has
2583 to create .dynbss and .rela.bss). */
3dab13f6 2584
25dbc73a
AM		 2585static bfd_boolean
2586ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2587{
2588 struct ppc_elf_link_hash_table *htab;
2589 asection *s;
2590 flagword flags;
3dab13f6 2591
25dbc73a 2592 htab = ppc_elf_hash_table (info);
3dab13f6 2593
25dbc73a
AM		 2594 if (htab->got == NULL
2595 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM		 2596 return FALSE;
2597
25dbc73a
AM		 2598 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2599 return FALSE;
3dab13f6 2600
d7128ce4
AM		 2601 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2602 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2603
2604 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2605 htab->glink = s;
2606 if (s == NULL
2607 || !bfd_set_section_alignment (abfd, s, 4))
2608 return FALSE;
3dab13f6 2609
25dbc73a 2610 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM		 2611 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2612 SEC_ALLOC | SEC_LINKER_CREATED);
2613 htab->dynsbss = s;
3496cb2a 2614 if (s == NULL)
25dbc73a 2615 return FALSE;
3dab13f6 2616
25dbc73a
AM		 2617 if (! info->shared)
2618 {
2619 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
d7128ce4 2620 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2621 htab->relsbss = s;
25dbc73a 2622 if (s == NULL
25dbc73a
AM		 2623 || ! bfd_set_section_alignment (abfd, s, 2))
2624 return FALSE;
2625 }
3dab13f6 2626
711de32c
RS		 2627 if (htab->is_vxworks
2628 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2629 return FALSE;
9d8504b1 2630
25dbc73a
AM		 2631 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2632 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2633 if (s == NULL)
2634 abort ();
3dab13f6 2635
3b36f7e6 2636 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS		 2637 if (htab->plt_type == PLT_VXWORKS)
2638 /* The VxWorks PLT is a loaded section with contents. */
2639 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM		 2640 return bfd_set_section_flags (abfd, s, flags);
2641}
3dab13f6 2642
25dbc73a 2643/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2644
25dbc73a 2645static void
fcfa13d2 2646ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM		 2647 struct elf_link_hash_entry *dir,
2648 struct elf_link_hash_entry *ind)
2649{
2650 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2651
25dbc73a
AM		 2652 edir = (struct ppc_elf_link_hash_entry *) dir;
2653 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2654
25dbc73a
AM		 2655 if (eind->dyn_relocs != NULL)
2656 {
2657 if (edir->dyn_relocs != NULL)
3dab13f6 2658 {
25dbc73a
AM		 2659 struct ppc_elf_dyn_relocs **pp;
2660 struct ppc_elf_dyn_relocs *p;
3dab13f6 2661
fcfa13d2 2662 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM		 2663 list. Merge any entries against the same section. */
2664 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2665 {
25dbc73a
AM		 2666 struct ppc_elf_dyn_relocs *q;
2667
2668 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2669 if (q->sec == p->sec)
2670 {
2671 q->pc_count += p->pc_count;
2672 q->count += p->count;
2673 *pp = p->next;
2674 break;
2675 }
2676 if (q == NULL)
2677 pp = &p->next;
3dab13f6 2678 }
25dbc73a 2679 *pp = edir->dyn_relocs;
3dab13f6 2680 }
25dbc73a
AM		 2681
2682 edir->dyn_relocs = eind->dyn_relocs;
2683 eind->dyn_relocs = NULL;
3dab13f6 2684 }
3dab13f6 2685
25dbc73a 2686 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2687 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2688
a6aa5195
AM		 2689 /* If called to transfer flags for a weakdef during processing
2690 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2691 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2692 if (!(ELIMINATE_COPY_RELOCS
2693 && eind->elf.root.type != bfd_link_hash_indirect
2694 && edir->elf.dynamic_adjusted))
2695 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2696
2697 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2698 edir->elf.ref_regular |= eind->elf.ref_regular;
2699 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2700 edir->elf.needs_plt |= eind->elf.needs_plt;
2701
2702 /* If we were called to copy over info for a weak sym, that's all. */
2703 if (eind->elf.root.type != bfd_link_hash_indirect)
2704 return;
2705
2706 /* Copy over the GOT refcount entries that we may have already seen to
2707 the symbol which just became indirect. */
fcfa13d2
AM		 2708 edir->elf.got.refcount += eind->elf.got.refcount;
2709 eind->elf.got.refcount = 0;
a6aa5195
AM		 2710
2711 /* And plt entries. */
2712 if (eind->elf.plt.plist != NULL)
2713 {
2714 if (edir->elf.plt.plist != NULL)
2715 {
2716 struct plt_entry **entp;
2717 struct plt_entry *ent;
2718
2719 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2720 {
2721 struct plt_entry *dent;
2722
2723 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2724 if (dent->sec == ent->sec && dent->addend == ent->addend)
2725 {
2726 dent->plt.refcount += ent->plt.refcount;
2727 *entp = ent->next;
2728 break;
2729 }
2730 if (dent == NULL)
2731 entp = &ent->next;
2732 }
2733 *entp = edir->elf.plt.plist;
2734 }
2735
2736 edir->elf.plt.plist = eind->elf.plt.plist;
2737 eind->elf.plt.plist = NULL;
2738 }
2739
fcfa13d2 2740 if (eind->elf.dynindx != -1)
25dbc73a 2741 {
fcfa13d2
AM		 2742 if (edir->elf.dynindx != -1)
2743 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2744 edir->elf.dynstr_index);
a6aa5195
AM		 2745 edir->elf.dynindx = eind->elf.dynindx;
2746 edir->elf.dynstr_index = eind->elf.dynstr_index;
2747 eind->elf.dynindx = -1;
2748 eind->elf.dynstr_index = 0;
25dbc73a 2749 }
25dbc73a 2750}
3dab13f6 2751
8853c3d3
AM		 2752/* Return 1 if target is one of ours. */
2753
2754static bfd_boolean
2755is_ppc_elf_target (const struct bfd_target *targ)
2756{
2757 extern const bfd_target bfd_elf32_powerpc_vec;
7c492719 2758 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
8853c3d3
AM		 2759 extern const bfd_target bfd_elf32_powerpcle_vec;
2760
7c492719
RS		 2761 return (targ == &bfd_elf32_powerpc_vec
2762 || targ == &bfd_elf32_powerpc_vxworks_vec
2763 || targ == &bfd_elf32_powerpcle_vec);
8853c3d3
AM		 2764}
2765
25dbc73a
AM		 2766/* Hook called by the linker routine which adds symbols from an object
2767 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 2768
25dbc73a
AM		 2769static bfd_boolean
2770ppc_elf_add_symbol_hook (bfd *abfd,
2771 struct bfd_link_info *info,
2772 Elf_Internal_Sym *sym,
2773 const char **namep ATTRIBUTE_UNUSED,
2774 flagword *flagsp ATTRIBUTE_UNUSED,
2775 asection **secp,
2776 bfd_vma *valp)
2777{
2778 if (sym->st_shndx == SHN_COMMON
2779 && !info->relocatable
2780 && sym->st_size <= elf_gp_size (abfd)
d2663f46 2781 && is_ppc_elf_target (info->hash->creator))
25dbc73a
AM		 2782 {
2783 /* Common symbols less than or equal to -G nn bytes are automatically
2784 put into .sbss. */
2785 struct ppc_elf_link_hash_table *htab;
3dab13f6 2786
25dbc73a
AM		 2787 htab = ppc_elf_hash_table (info);
2788 if (htab->sbss == NULL)
2789 {
644285ef 2790 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 2791
644285ef
AM		 2792 if (!htab->elf.dynobj)
2793 htab->elf.dynobj = abfd;
2794
3496cb2a
L		 2795 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2796 ".sbss",
2797 flags);
2798 if (htab->sbss == NULL)
25dbc73a 2799 return FALSE;
3dab13f6 2800 }
3dab13f6 2801
25dbc73a
AM		 2802 *secp = htab->sbss;
2803 *valp = sym->st_size;
2804 }
3dab13f6 2805
25dbc73a 2806 return TRUE;
3dab13f6
AM		 2807}
2808\f
046183de
AM		 2809static bfd_boolean
2810create_sdata_sym (struct ppc_elf_link_hash_table *htab,
2811 elf_linker_section_t *lsect)
2812{
2813 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
2814 TRUE, FALSE, TRUE);
2815 if (lsect->sym == NULL)
2816 return FALSE;
2817 if (lsect->sym->root.type == bfd_link_hash_new)
2818 lsect->sym->non_elf = 0;
2819 lsect->sym->ref_regular = 1;
2820 return TRUE;
2821}
2822
c9a2f333 2823/* Create a special linker section. */
25dbc73a 2824
c9a2f333 2825static bfd_boolean
55fd94b0
AM		 2826ppc_elf_create_linker_section (bfd *abfd,
2827 struct bfd_link_info *info,
c9a2f333
AM		 2828 flagword flags,
2829 elf_linker_section_t *lsect)
252b5132 2830{
58111eb7 2831 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 2832 asection *s;
58111eb7 2833
c9a2f333
AM		 2834 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2835 | SEC_LINKER_CREATED);
58111eb7
AM		 2836
2837 /* Record the first bfd that needs the special sections. */
2838 if (!htab->elf.dynobj)
2839 htab->elf.dynobj = abfd;
2840
3496cb2a
L		 2841 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2842 lsect->name,
2843 flags);
76750a2f 2844 if (s == NULL
76750a2f 2845 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 2846 return FALSE;
76750a2f 2847 lsect->section = s;
58111eb7 2848
046183de 2849 return create_sdata_sym (htab, lsect);
252b5132 2850}
252b5132 2851
25dbc73a
AM		 2852/* Find a linker generated pointer with a given addend and type. */
2853
2854static elf_linker_section_pointers_t *
2855elf_find_pointer_linker_section
2856 (elf_linker_section_pointers_t *linker_pointers,
2857 bfd_vma addend,
2858 elf_linker_section_t *lsect)
252b5132 2859{
25dbc73a
AM		 2860 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2861 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2862 return linker_pointers;
252b5132 2863
25dbc73a
AM		 2864 return NULL;
2865}
2866
2867/* Allocate a pointer to live in a linker created section. */
2868
2869static bfd_boolean
2870elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM		 2871 elf_linker_section_t *lsect,
2872 struct elf_link_hash_entry *h,
2873 const Elf_Internal_Rela *rel)
2874{
2875 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2876 elf_linker_section_pointers_t *linker_section_ptr;
2877 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2878 bfd_size_type amt;
2879
2880 BFD_ASSERT (lsect != NULL);
2881
2882 /* Is this a global symbol? */
2883 if (h != NULL)
2884 {
2885 struct ppc_elf_link_hash_entry *eh;
2886
2887 /* Has this symbol already been allocated? If so, our work is done. */
2888 eh = (struct ppc_elf_link_hash_entry *) h;
2889 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2890 rel->r_addend,
2891 lsect))
2892 return TRUE;
2893
2894 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM		 2895 }
2896 else
2897 {
2898 /* Allocation of a pointer to a local symbol. */
2899 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2900
2901 /* Allocate a table to hold the local symbols if first time. */
2902 if (!ptr)
2903 {
2904 unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
2905
2906 amt = num_symbols;
2907 amt *= sizeof (elf_linker_section_pointers_t *);
2908 ptr = bfd_zalloc (abfd, amt);
2909
2910 if (!ptr)
2911 return FALSE;
2912
2913 elf_local_ptr_offsets (abfd) = ptr;
2914 }
2915
2916 /* Has this symbol already been allocated? If so, our work is done. */
2917 if (elf_find_pointer_linker_section (ptr[r_symndx],
2918 rel->r_addend,
2919 lsect))
2920 return TRUE;
252b5132 2921
25dbc73a 2922 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 2923 }
41fcb14e 2924
25dbc73a
AM		 2925 /* Allocate space for a pointer in the linker section, and allocate
2926 a new pointer record from internal memory. */
2927 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2928 amt = sizeof (elf_linker_section_pointers_t);
2929 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 2930
25dbc73a 2931 if (!linker_section_ptr)
7619e7c7 2932 return FALSE;
41fcb14e 2933
25dbc73a
AM		 2934 linker_section_ptr->next = *ptr_linker_section_ptr;
2935 linker_section_ptr->addend = rel->r_addend;
2936 linker_section_ptr->lsect = lsect;
25dbc73a 2937 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 2938
25dbc73a
AM		 2939 linker_section_ptr->offset = lsect->section->size;
2940 lsect->section->size += 4;
7619e7c7 2941
25dbc73a
AM		 2942#ifdef DEBUG
2943 fprintf (stderr,
2944 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2945 lsect->name, (long) linker_section_ptr->offset,
2946 (long) lsect->section->size);
2947#endif
7619e7c7
AM		 2948
2949 return TRUE;
41fcb14e
AM		 2950}
2951
b34976b6 2952static bfd_boolean
25dbc73a
AM		 2953update_local_sym_info (bfd *abfd,
2954 Elf_Internal_Shdr *symtab_hdr,
2955 unsigned long r_symndx,
2956 int tls_type)
252b5132 2957{
25dbc73a
AM		 2958 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
2959 char *local_got_tls_masks;
252b5132 2960
25dbc73a 2961 if (local_got_refcounts == NULL)
252b5132 2962 {
25dbc73a
AM		 2963 bfd_size_type size = symtab_hdr->sh_info;
2964
2965 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
2966 local_got_refcounts = bfd_zalloc (abfd, size);
2967 if (local_got_refcounts == NULL)
b34976b6 2968 return FALSE;
25dbc73a 2969 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 2970 }
41fcb14e 2971
25dbc73a
AM		 2972 local_got_refcounts[r_symndx] += 1;
2973 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
2974 local_got_tls_masks[r_symndx] |= tls_type;
2975 return TRUE;
2976}
41fcb14e 2977
a6aa5195
AM		 2978static bfd_boolean
2979update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
2980 asection *sec, bfd_vma addend)
2981{
2982 struct plt_entry *ent;
2983
2984 if (addend < 32768)
2985 sec = NULL;
2986 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2987 if (ent->sec == sec && ent->addend == addend)
2988 break;
2989 if (ent == NULL)
2990 {
2991 bfd_size_type amt = sizeof (*ent);
2992 ent = bfd_alloc (abfd, amt);
2993 if (ent == NULL)
2994 return FALSE;
2995 ent->next = h->plt.plist;
2996 ent->sec = sec;
2997 ent->addend = addend;
2998 ent->plt.refcount = 0;
2999 h->plt.plist = ent;
3000 }
3001 ent->plt.refcount += 1;
3002 return TRUE;
3003}
3004
3005static struct plt_entry *
3006find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
3007{
3008 struct plt_entry *ent;
3009
3010 if (addend < 32768)
3011 sec = NULL;
3012 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
3013 if (ent->sec == sec && ent->addend == addend)
3014 break;
3015 return ent;
3016}
3017
25dbc73a
AM		 3018static void
3019bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3020{
3021 (*_bfd_error_handler)
3022 (_("%B: relocation %s cannot be used when making a shared object"),
3023 abfd,
3024 ppc_elf_howto_table[r_type]->name);
3025 bfd_set_error (bfd_error_bad_value);
252b5132
RH		 3026}
3027
25dbc73a
AM		 3028/* Look through the relocs for a section during the first phase, and
3029 allocate space in the global offset table or procedure linkage
3030 table. */
252b5132 3031
b34976b6 3032static bfd_boolean
25dbc73a
AM		 3033ppc_elf_check_relocs (bfd *abfd,
3034 struct bfd_link_info *info,
3035 asection *sec,
3036 const Elf_Internal_Rela *relocs)
252b5132 3037{
7619e7c7 3038 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM		 3039 Elf_Internal_Shdr *symtab_hdr;
3040 struct elf_link_hash_entry **sym_hashes;
3041 const Elf_Internal_Rela *rel;
3042 const Elf_Internal_Rela *rel_end;
a6aa5195 3043 asection *got2, *sreloc;
25dbc73a
AM		 3044
3045 if (info->relocatable)
3046 return TRUE;
252b5132 3047
c87b5a93
AM		 3048 /* Don't do anything special with non-loaded, non-alloced sections.
3049 In particular, any relocs in such sections should not affect GOT
3050 and PLT reference counting (ie. we don't allow them to create GOT
3051 or PLT entries), there's no possibility or desire to optimize TLS
3052 relocs, and there's not much point in propagating relocs to shared
3053 libs that the dynamic linker won't relocate. */
3054 if ((sec->flags & SEC_ALLOC) == 0)
3055 return TRUE;
3056
252b5132 3057#ifdef DEBUG
25dbc73a
AM		 3058 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3059 sec, abfd);
252b5132
RH		 3060#endif
3061
25dbc73a
AM		 3062 /* Initialize howto table if not already done. */
3063 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3064 ppc_elf_howto_init ();
3065
7619e7c7 3066 htab = ppc_elf_hash_table (info);
25dbc73a
AM		 3067 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3068 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3069 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3070 sreloc = NULL;
3071
3072 rel_end = relocs + sec->reloc_count;
3073 for (rel = relocs; rel < rel_end; rel++)
3074 {
3075 unsigned long r_symndx;
3076 enum elf_ppc_reloc_type r_type;
3077 struct elf_link_hash_entry *h;
3078 int tls_type = 0;
3079
3080 r_symndx = ELF32_R_SYM (rel->r_info);
3081 if (r_symndx < symtab_hdr->sh_info)
3082 h = NULL;
3083 else
973a3492
L		 3084 {
3085 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3086 while (h->root.type == bfd_link_hash_indirect
3087 || h->root.type == bfd_link_hash_warning)
3088 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3089 }
25dbc73a
AM		 3090
3091 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3092 This shows up in particular in an R_PPC_ADDR32 in the eabi
3093 startup code. */
3b36f7e6
AM		 3094 if (h != NULL
3095 && htab->got == NULL
3096 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3097 {
3b36f7e6
AM		 3098 if (htab->elf.dynobj == NULL)
3099 htab->elf.dynobj = abfd;
3100 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3101 return FALSE;
3102 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3103 }
252b5132 3104
25dbc73a
AM		 3105 r_type = ELF32_R_TYPE (rel->r_info);
3106 switch (r_type)
3107 {
3108 case R_PPC_GOT_TLSLD16:
3109 case R_PPC_GOT_TLSLD16_LO:
3110 case R_PPC_GOT_TLSLD16_HI:
3111 case R_PPC_GOT_TLSLD16_HA:
3112 htab->tlsld_got.refcount += 1;
3113 tls_type = TLS_TLS | TLS_LD;
3114 goto dogottls;
252b5132 3115
25dbc73a
AM		 3116 case R_PPC_GOT_TLSGD16:
3117 case R_PPC_GOT_TLSGD16_LO:
3118 case R_PPC_GOT_TLSGD16_HI:
3119 case R_PPC_GOT_TLSGD16_HA:
3120 tls_type = TLS_TLS | TLS_GD;
3121 goto dogottls;
3122
3123 case R_PPC_GOT_TPREL16:
3124 case R_PPC_GOT_TPREL16_LO:
3125 case R_PPC_GOT_TPREL16_HI:
3126 case R_PPC_GOT_TPREL16_HA:
3127 if (info->shared)
3128 info->flags |= DF_STATIC_TLS;
3129 tls_type = TLS_TLS | TLS_TPREL;
3130 goto dogottls;
3131
3132 case R_PPC_GOT_DTPREL16:
3133 case R_PPC_GOT_DTPREL16_LO:
3134 case R_PPC_GOT_DTPREL16_HI:
3135 case R_PPC_GOT_DTPREL16_HA:
3136 tls_type = TLS_TLS | TLS_DTPREL;
3137 dogottls:
3138 sec->has_tls_reloc = 1;
3139 /* Fall thru */
252b5132 3140
25dbc73a
AM		 3141 /* GOT16 relocations */
3142 case R_PPC_GOT16:
3143 case R_PPC_GOT16_LO:
3144 case R_PPC_GOT16_HI:
3145 case R_PPC_GOT16_HA:
3146 /* This symbol requires a global offset table entry. */
3147 if (htab->got == NULL)
3148 {
3149 if (htab->elf.dynobj == NULL)
3150 htab->elf.dynobj = abfd;
3151 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3152 return FALSE;
3153 }
3154 if (h != NULL)
3155 {
3156 h->got.refcount += 1;
3157 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3158 }
3159 else
3160 /* This is a global offset table entry for a local symbol. */
3161 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3162 return FALSE;
3163 break;
252b5132 3164
25dbc73a
AM		 3165 /* Indirect .sdata relocation. */
3166 case R_PPC_EMB_SDAI16:
3167 if (info->shared)
3168 {
3169 bad_shared_reloc (abfd, r_type);
3170 return FALSE;
3171 }
c9a2f333
AM		 3172 if (htab->sdata[0].section == NULL
3173 && !ppc_elf_create_linker_section (abfd, info, 0,
3174 &htab->sdata[0]))
3175 return FALSE;
76750a2f
AM		 3176 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3177 h, rel))
25dbc73a 3178 return FALSE;
046183de
AM		 3179 if (h != NULL)
3180 {
3181 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3182 h->non_got_ref = TRUE;
3183 }
25dbc73a 3184 break;
252b5132 3185
25dbc73a
AM		 3186 /* Indirect .sdata2 relocation. */
3187 case R_PPC_EMB_SDA2I16:
3188 if (info->shared)
3189 {
3190 bad_shared_reloc (abfd, r_type);
3191 return FALSE;
3192 }
c9a2f333
AM		 3193 if (htab->sdata[1].section == NULL
3194 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3195 &htab->sdata[1]))
3196 return FALSE;
76750a2f
AM		 3197 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3198 h, rel))
25dbc73a 3199 return FALSE;
046183de
AM		 3200 if (h != NULL)
3201 {
3202 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3203 h->non_got_ref = TRUE;
3204 }
25dbc73a 3205 break;
252b5132 3206
25dbc73a 3207 case R_PPC_SDAREL16:
046183de
AM		 3208 if (info->shared)
3209 {
3210 bad_shared_reloc (abfd, r_type);
3211 return FALSE;
3212 }
3213 if (htab->sdata[0].sym == NULL
3214 && !create_sdata_sym (htab, &htab->sdata[0]))
3215 return FALSE;
3216 if (h != NULL)
3217 {
3218 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3219 h->non_got_ref = TRUE;
3220 }
3221 break;
3222
25dbc73a 3223 case R_PPC_EMB_SDA2REL:
046183de
AM		 3224 if (info->shared)
3225 {
3226 bad_shared_reloc (abfd, r_type);
3227 return FALSE;
3228 }
3229 if (htab->sdata[1].sym == NULL
3230 && !create_sdata_sym (htab, &htab->sdata[1]))
3231 return FALSE;
3232 if (h != NULL)
3233 {
3234 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3235 h->non_got_ref = TRUE;
3236 }
3237 break;
3238
25dbc73a
AM		 3239 case R_PPC_EMB_SDA21:
3240 case R_PPC_EMB_RELSDA:
046183de
AM		 3241 if (info->shared)
3242 {
3243 bad_shared_reloc (abfd, r_type);
3244 return FALSE;
3245 }
3246 if (htab->sdata[0].sym == NULL
3247 && !create_sdata_sym (htab, &htab->sdata[0]))
3248 return FALSE;
3249 if (htab->sdata[1].sym == NULL
3250 && !create_sdata_sym (htab, &htab->sdata[1]))
3251 return FALSE;
3252 if (h != NULL)
3253 {
3254 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3255 h->non_got_ref = TRUE;
3256 }
3257 break;
3258
25dbc73a
AM		 3259 case R_PPC_EMB_NADDR32:
3260 case R_PPC_EMB_NADDR16:
3261 case R_PPC_EMB_NADDR16_LO:
3262 case R_PPC_EMB_NADDR16_HI:
3263 case R_PPC_EMB_NADDR16_HA:
3264 if (info->shared)
3265 {
3266 bad_shared_reloc (abfd, r_type);
3267 return FALSE;
3268 }
4dc4a9a5 3269 if (h != NULL)
046183de 3270 h->non_got_ref = TRUE;
25dbc73a 3271 break;
252b5132 3272
25dbc73a
AM		 3273 case R_PPC_PLT32:
3274 case R_PPC_PLTREL24:
3275 case R_PPC_PLTREL32:
3276 case R_PPC_PLT16_LO:
3277 case R_PPC_PLT16_HI:
3278 case R_PPC_PLT16_HA:
3279#ifdef DEBUG
3280 fprintf (stderr, "Reloc requires a PLT entry\n");
3281#endif
3282 /* This symbol requires a procedure linkage table entry. We
3283 actually build the entry in finish_dynamic_symbol,
3284 because this might be a case of linking PIC code without
3285 linking in any dynamic objects, in which case we don't
3286 need to generate a procedure linkage table after all. */
7619e7c7 3287
25dbc73a
AM		 3288 if (h == NULL)
3289 {
3290 /* It does not make sense to have a procedure linkage
3291 table entry for a local symbol. */
3292 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3293 "local symbol"),
3294 abfd,
3295 sec,
3296 (long) rel->r_offset,
3297 ppc_elf_howto_table[r_type]->name);
3298 bfd_set_error (bfd_error_bad_value);
3299 return FALSE;
3300 }
a6aa5195
AM		 3301 else
3302 {
016687f8 3303 bfd_vma addend = 0;
ee05f2fe 3304
016687f8
AM		 3305 if (r_type == R_PPC_PLTREL24)
3306 {
3307 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3308 addend = rel->r_addend;
3309 }
a6aa5195
AM		 3310 h->needs_plt = 1;
3311 if (!update_plt_info (abfd, h, got2, addend))
3312 return FALSE;
3313 }
25dbc73a 3314 break;
ee05f2fe 3315
25dbc73a
AM		 3316 /* The following relocations don't need to propagate the
3317 relocation if linking a shared object since they are
3318 section relative. */
3319 case R_PPC_SECTOFF:
3320 case R_PPC_SECTOFF_LO:
3321 case R_PPC_SECTOFF_HI:
3322 case R_PPC_SECTOFF_HA:
3323 case R_PPC_DTPREL16:
3324 case R_PPC_DTPREL16_LO:
3325 case R_PPC_DTPREL16_HI:
3326 case R_PPC_DTPREL16_HA:
3327 case R_PPC_TOC16:
3328 break;
252b5132 3329
d7128ce4
AM		 3330 case R_PPC_REL16:
3331 case R_PPC_REL16_LO:
3332 case R_PPC_REL16_HI:
3333 case R_PPC_REL16_HA:
016687f8 3334 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM		 3335 break;
3336
a6aa5195 3337 /* These are just markers. */
25dbc73a
AM		 3338 case R_PPC_TLS:
3339 case R_PPC_EMB_MRKREF:
3340 case R_PPC_NONE:
3341 case R_PPC_max:
3342 break;
252b5132 3343
25dbc73a
AM		 3344 /* These should only appear in dynamic objects. */
3345 case R_PPC_COPY:
3346 case R_PPC_GLOB_DAT:
3347 case R_PPC_JMP_SLOT:
3348 case R_PPC_RELATIVE:
3349 break;
252b5132 3350
25dbc73a
AM		 3351 /* These aren't handled yet. We'll report an error later. */
3352 case R_PPC_ADDR30:
3353 case R_PPC_EMB_RELSEC16:
3354 case R_PPC_EMB_RELST_LO:
3355 case R_PPC_EMB_RELST_HI:
3356 case R_PPC_EMB_RELST_HA:
3357 case R_PPC_EMB_BIT_FLD:
3358 break;
252b5132 3359
25dbc73a
AM		 3360 /* This refers only to functions defined in the shared library. */
3361 case R_PPC_LOCAL24PC:
4a3dc543 3362 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM		 3363 {
3364 htab->plt_type = PLT_OLD;
3365 htab->old_bfd = abfd;
3366 }
25dbc73a 3367 break;
252b5132 3368
25dbc73a
AM		 3369 /* This relocation describes the C++ object vtable hierarchy.
3370 Reconstruct it for later use during GC. */
3371 case R_PPC_GNU_VTINHERIT:
3372 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3373 return FALSE;
3374 break;
252b5132 3375
25dbc73a
AM		 3376 /* This relocation describes which C++ vtable entries are actually
3377 used. Record for later use during GC. */
3378 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB		 3379 BFD_ASSERT (h != NULL);
3380 if (h != NULL
3381 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM		 3382 return FALSE;
3383 break;
252b5132 3384
25dbc73a
AM		 3385 /* We shouldn't really be seeing these. */
3386 case R_PPC_TPREL32:
3387 if (info->shared)
3388 info->flags |= DF_STATIC_TLS;
3389 goto dodyn;
252b5132 3390
25dbc73a
AM		 3391 /* Nor these. */
3392 case R_PPC_DTPMOD32:
3393 case R_PPC_DTPREL32:
3394 goto dodyn;
252b5132 3395
25dbc73a
AM		 3396 case R_PPC_TPREL16:
3397 case R_PPC_TPREL16_LO:
3398 case R_PPC_TPREL16_HI:
3399 case R_PPC_TPREL16_HA:
3400 if (info->shared)
3401 info->flags |= DF_STATIC_TLS;
3402 goto dodyn;
ee05f2fe 3403
9edfd1af
AM		 3404 case R_PPC_REL32:
3405 if (h == NULL
3406 && got2 != NULL
3407 && (sec->flags & SEC_CODE) != 0
3408 && (info->shared || info->pie)
4a3dc543 3409 && htab->plt_type == PLT_UNSET)
9edfd1af
AM		 3410 {
3411 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3412 the start of a function, which assembles to a REL32
3413 reference to .got2. If we detect one of these, then
3414 force the old PLT layout because the linker cannot
3415 reliably deduce the GOT pointer value needed for
3416 PLT call stubs. */
3417 asection *s;
3418
3419 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3420 r_symndx);
3421 if (s == got2)
016687f8
AM		 3422 {
3423 htab->plt_type = PLT_OLD;
3424 htab->old_bfd = abfd;
3425 }
9edfd1af 3426 }
7123df0e 3427 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3428 break;
7123df0e 3429 goto dodyn1;
9edfd1af 3430
25dbc73a
AM		 3431 case R_PPC_REL24:
3432 case R_PPC_REL14:
3433 case R_PPC_REL14_BRTAKEN:
3434 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3435 if (h == NULL)
25dbc73a 3436 break;
7123df0e 3437 if (h == htab->elf.hgot)
d7128ce4 3438 {
7123df0e 3439 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3440 {
3441 htab->plt_type = PLT_OLD;
3442 htab->old_bfd = abfd;
3443 }
d7128ce4
AM		 3444 break;
3445 }
25dbc73a 3446 /* fall through */
ee05f2fe 3447
25dbc73a
AM		 3448 case R_PPC_ADDR32:
3449 case R_PPC_ADDR24:
3450 case R_PPC_ADDR16:
3451 case R_PPC_ADDR16_LO:
3452 case R_PPC_ADDR16_HI:
3453 case R_PPC_ADDR16_HA:
3454 case R_PPC_ADDR14:
3455 case R_PPC_ADDR14_BRTAKEN:
3456 case R_PPC_ADDR14_BRNTAKEN:
3457 case R_PPC_UADDR32:
3458 case R_PPC_UADDR16:
7123df0e 3459 dodyn1:
25dbc73a
AM		 3460 if (h != NULL && !info->shared)
3461 {
3462 /* We may need a plt entry if the symbol turns out to be
3463 a function defined in a dynamic object. */
a6aa5195
AM		 3464 if (!update_plt_info (abfd, h, NULL, 0))
3465 return FALSE;
7fce784e 3466
25dbc73a
AM		 3467 /* We may need a copy reloc too. */
3468 h->non_got_ref = 1;
3469 }
7619e7c7 3470
25dbc73a
AM		 3471 dodyn:
3472 /* If we are creating a shared library, and this is a reloc
3473 against a global symbol, or a non PC relative reloc
3474 against a local symbol, then we need to copy the reloc
3475 into the shared library. However, if we are linking with
3476 -Bsymbolic, we do not need to copy a reloc against a
3477 global symbol which is defined in an object we are
3478 including in the link (i.e., DEF_REGULAR is set). At
3479 this point we have not seen all the input files, so it is
3480 possible that DEF_REGULAR is not set now but will be set
3481 later (it is never cleared). In case of a weak definition,
3482 DEF_REGULAR may be cleared later by a strong definition in
3483 a shared library. We account for that possibility below by
3484 storing information in the dyn_relocs field of the hash
3485 table entry. A similar situation occurs when creating
3486 shared libraries and symbol visibility changes render the
3487 symbol local.
7619e7c7 3488
25dbc73a
AM		 3489 If on the other hand, we are creating an executable, we
3490 may need to keep relocations for symbols satisfied by a
3491 dynamic library if we manage to avoid copy relocs for the
3492 symbol. */
3493 if ((info->shared
3494 && (MUST_BE_DYN_RELOC (r_type)
3495 || (h != NULL
3496 && (! info->symbolic
3497 || h->root.type == bfd_link_hash_defweak
3498 || !h->def_regular))))
3499 || (ELIMINATE_COPY_RELOCS
3500 && !info->shared
25dbc73a
AM		 3501 && h != NULL
3502 && (h->root.type == bfd_link_hash_defweak
3503 || !h->def_regular)))
3504 {
3505 struct ppc_elf_dyn_relocs *p;
3506 struct ppc_elf_dyn_relocs **head;
7619e7c7 3507
25dbc73a
AM		 3508#ifdef DEBUG
3509 fprintf (stderr,
3510 "ppc_elf_check_relocs needs to "
3511 "create relocation for %s\n",
3512 (h && h->root.root.string
3513 ? h->root.root.string : "<unknown>"));
3514#endif
3515 if (sreloc == NULL)
3516 {
3517 const char *name;
7619e7c7 3518
25dbc73a
AM		 3519 name = (bfd_elf_string_from_elf_section
3520 (abfd,
3521 elf_elfheader (abfd)->e_shstrndx,
3522 elf_section_data (sec)->rel_hdr.sh_name));
3523 if (name == NULL)
3524 return FALSE;
7619e7c7 3525
0112cd26 3526 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
25dbc73a
AM		 3527 && strcmp (bfd_get_section_name (abfd, sec),
3528 name + 5) == 0);
7619e7c7 3529
c9a2f333
AM		 3530 if (htab->elf.dynobj == NULL)
3531 htab->elf.dynobj = abfd;
25dbc73a
AM		 3532 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3533 if (sreloc == NULL)
3534 {
3535 flagword flags;
7619e7c7 3536
25dbc73a 3537 flags = (SEC_HAS_CONTENTS | SEC_READONLY
c87b5a93
AM		 3538 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3539 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 3540 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3541 name,
3542 flags);
25dbc73a 3543 if (sreloc == NULL
25dbc73a
AM		 3544 || ! bfd_set_section_alignment (htab->elf.dynobj,
3545 sreloc, 2))
3546 return FALSE;
3547 }
3548 elf_section_data (sec)->sreloc = sreloc;
3549 }
7619e7c7 3550
25dbc73a
AM		 3551 /* If this is a global symbol, we count the number of
3552 relocations we need for this symbol. */
3553 if (h != NULL)
3554 {
3555 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3556 }
3557 else
3558 {
3559 /* Track dynamic relocs needed for local syms too.
3560 We really need local syms available to do this
3561 easily. Oh well. */
7619e7c7 3562
25dbc73a 3563 asection *s;
6edfbbad
DJ		 3564 void *vpp;
3565
25dbc73a
AM		 3566 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3567 sec, r_symndx);
3568 if (s == NULL)
3569 return FALSE;
7fce784e 3570
6edfbbad
DJ		 3571 vpp = &elf_section_data (s)->local_dynrel;
3572 head = (struct ppc_elf_dyn_relocs **) vpp;
25dbc73a 3573 }
7fce784e 3574
25dbc73a
AM		 3575 p = *head;
3576 if (p == NULL || p->sec != sec)
3577 {
3578 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3579 if (p == NULL)
3580 return FALSE;
3581 p->next = *head;
3582 *head = p;
3583 p->sec = sec;
3584 p->count = 0;
3585 p->pc_count = 0;
3586 }
3587
3588 p->count += 1;
3589 if (!MUST_BE_DYN_RELOC (r_type))
3590 p->pc_count += 1;
7619e7c7 3591 }
25dbc73a
AM		 3592
3593 break;
7619e7c7
AM		 3594 }
3595 }
ee05f2fe 3596
25dbc73a
AM		 3597 return TRUE;
3598}
3599\f
34c8bcba
JM		 3600
3601/* Merge object attributes from IBFD into OBFD. Raise an error if
3602 there are conflicting attributes. */
3603static bfd_boolean
3604ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3605{
c6e65352
DJ		 3606 obj_attribute *in_attr, *in_attrs;
3607 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM		 3608
3609 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3610 {
3611 /* This is the first object. Copy the attributes. */
3612 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3613
3614 /* Use the Tag_null value to indicate the attributes have been
3615 initialized. */
3616 elf_known_obj_attributes_proc (obfd)[0].i = 1;
3617
3618 return TRUE;
3619 }
3620
c6e65352
DJ		 3621 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
3622 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
3623
34c8bcba
JM		 3624 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
3625 non-conflicting ones. */
c6e65352
DJ		 3626 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
3627 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
3628 if (in_attr->i != out_attr->i)
34c8bcba 3629 {
c6e65352
DJ		 3630 out_attr->type = 1;
3631 if (out_attr->i == 0)
3632 out_attr->i = in_attr->i;
3633 else if (in_attr->i == 0)
34c8bcba 3634 ;
c6e65352 3635 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM		 3636 _bfd_error_handler
3637 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
c6e65352 3638 else if (out_attr->i == 2 && in_attr->i == 1)
34c8bcba
JM		 3639 _bfd_error_handler
3640 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
c6e65352 3641 else if (in_attr->i > 2)
34c8bcba
JM		 3642 _bfd_error_handler
3643 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 3644 in_attr->i);
34c8bcba
JM		 3645 else
3646 _bfd_error_handler
3647 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ		 3648 out_attr->i);
3649 }
3650
3651 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
3652 merge non-conflicting ones. */
3653 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
3654 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
3655 if (in_attr->i != out_attr->i)
3656 {
3657 const char *in_abi = NULL, *out_abi = NULL;
3658
3659 switch (in_attr->i)
3660 {
3661 case 1: in_abi = "generic"; break;
3662 case 2: in_abi = "AltiVec"; break;
3663 case 3: in_abi = "SPE"; break;
3664 }
3665
3666 switch (out_attr->i)
3667 {
3668 case 1: out_abi = "generic"; break;
3669 case 2: out_abi = "AltiVec"; break;
3670 case 3: out_abi = "SPE"; break;
3671 }
3672
3673 out_attr->type = 1;
3674 if (out_attr->i == 0)
3675 out_attr->i = in_attr->i;
3676 else if (in_attr->i == 0)
3677 ;
3678 /* For now, allow generic to transition to AltiVec or SPE
3679 without a warning. If GCC marked files with their stack
3680 alignment and used don't-care markings for files which are
3681 not affected by the vector ABI, we could warn about this
3682 case too. */
3683 else if (out_attr->i == 1)
3684 out_attr->i = in_attr->i;
3685 else if (in_attr->i == 1)
3686 ;
3687 else if (in_abi == NULL)
3688 _bfd_error_handler
3689 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
3690 in_attr->i);
3691 else if (out_abi == NULL)
3692 _bfd_error_handler
3693 (_("Warning: %B uses unknown vector ABI %d"), obfd,
3694 in_attr->i);
3695 else
3696 _bfd_error_handler
3697 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
3698 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM		 3699 }
3700
3701 /* Merge Tag_compatibility attributes and any common GNU ones. */
3702 _bfd_elf_merge_object_attributes (ibfd, obfd);
3703
3704 return TRUE;
3705}
3706
8853c3d3
AM		 3707/* Merge backend specific data from an object file to the output
3708 object file when linking. */
3709
3710static bfd_boolean
3711ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3712{
3713 flagword old_flags;
3714 flagword new_flags;
3715 bfd_boolean error;
3716
3717 if (!is_ppc_elf_target (ibfd->xvec)
3718 || !is_ppc_elf_target (obfd->xvec))
3719 return TRUE;
3720
3721 /* Check if we have the same endianess. */
3722 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3723 return FALSE;
3724
34c8bcba
JM		 3725 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
3726 return FALSE;
3727
8853c3d3
AM		 3728 new_flags = elf_elfheader (ibfd)->e_flags;
3729 old_flags = elf_elfheader (obfd)->e_flags;
3730 if (!elf_flags_init (obfd))
3731 {
3732 /* First call, no flags set. */
3733 elf_flags_init (obfd) = TRUE;
3734 elf_elfheader (obfd)->e_flags = new_flags;
3735 }
3736
3737 /* Compatible flags are ok. */
3738 else if (new_flags == old_flags)
3739 ;
3740
3741 /* Incompatible flags. */
3742 else
3743 {
3744 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3745 to be linked with either. */
3746 error = FALSE;
3747 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3748 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3749 {
3750 error = TRUE;
3751 (*_bfd_error_handler)
3752 (_("%B: compiled with -mrelocatable and linked with "
3753 "modules compiled normally"), ibfd);
3754 }
3755 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3756 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3757 {
3758 error = TRUE;
3759 (*_bfd_error_handler)
3760 (_("%B: compiled normally and linked with "
3761 "modules compiled with -mrelocatable"), ibfd);
3762 }
3763
3764 /* The output is -mrelocatable-lib iff both the input files are. */
3765 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3766 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3767
3768 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3769 but each input file is either -mrelocatable or -mrelocatable-lib. */
3770 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3771 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3772 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3773 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3774
3775 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3776 any module uses it. */
3777 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3778
3779 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3780 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3781
3782 /* Warn about any other mismatches. */
3783 if (new_flags != old_flags)
3784 {
3785 error = TRUE;
3786 (*_bfd_error_handler)
3787 (_("%B: uses different e_flags (0x%lx) fields "
3788 "than previous modules (0x%lx)"),
3789 ibfd, (long) new_flags, (long) old_flags);
3790 }
3791
3792 if (error)
3793 {
3794 bfd_set_error (bfd_error_bad_value);
3795 return FALSE;
3796 }
3797 }
3798
3799 return TRUE;
3800}
3801\f
d7128ce4
AM		 3802/* Choose which PLT scheme to use, and set .plt flags appropriately.
3803 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
3804int
3805ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
3806 struct bfd_link_info *info,
016687f8 3807 enum ppc_elf_plt_type plt_style,
0ba07910 3808 int emit_stub_syms)
d7128ce4
AM		 3809{
3810 struct ppc_elf_link_hash_table *htab;
9d8504b1 3811 flagword flags;
d7128ce4
AM		 3812
3813 htab = ppc_elf_hash_table (info);
4a3dc543
RS		 3814
3815 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3816 {
3817 if (plt_style == PLT_OLD)
3818 htab->plt_type = PLT_OLD;
3819 else
3820 {
3821 bfd *ibfd;
3822 enum ppc_elf_plt_type plt_type = plt_style;
3823
3824 /* Look through the reloc flags left by ppc_elf_check_relocs.
3825 Use the old style bss plt if a file makes plt calls
3826 without using the new relocs, and if ld isn't given
3827 --secure-plt and we never see REL16 relocs. */
3828 if (plt_type == PLT_UNSET)
3829 plt_type = PLT_OLD;
60b31e8d 3830 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
016687f8
AM		 3831 if (is_ppc_elf_target (ibfd->xvec))
3832 {
3833 if (ppc_elf_tdata (ibfd)->has_rel16)
3834 plt_type = PLT_NEW;
3835 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
3836 {
3837 plt_type = PLT_OLD;
3838 htab->old_bfd = ibfd;
3839 break;
3840 }
3841 }
3842 htab->plt_type = plt_type;
3843 }
3844 }
3845 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
3846 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
d7128ce4 3847
0ba07910
AM		 3848 htab->emit_stub_syms = emit_stub_syms;
3849
4a3dc543 3850 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 3851
4a3dc543 3852 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 3853 {
3854 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3855 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM		 3856
3857 /* The new PLT is a loaded section. */
3858 if (htab->plt != NULL
3859 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
3860 return -1;
3861
3862 /* The new GOT is not executable. */
3863 if (htab->got != NULL
3864 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
3865 return -1;
d7128ce4
AM		 3866 }
3867 else
3868 {
3869 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM		 3870 if (htab->glink != NULL
3871 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
3872 return -1;
d7128ce4 3873 }
4a3dc543 3874 return htab->plt_type == PLT_NEW;
d7128ce4
AM		 3875}
3876\f
25dbc73a
AM		 3877/* Return the section that should be marked against GC for a given
3878 relocation. */
586119b3 3879
25dbc73a
AM		 3880static asection *
3881ppc_elf_gc_mark_hook (asection *sec,
07adf181 3882 struct bfd_link_info *info,
25dbc73a
AM		 3883 Elf_Internal_Rela *rel,
3884 struct elf_link_hash_entry *h,
3885 Elf_Internal_Sym *sym)
3886{
3887 if (h != NULL)
07adf181
AM		 3888 switch (ELF32_R_TYPE (rel->r_info))
3889 {
3890 case R_PPC_GNU_VTINHERIT:
3891 case R_PPC_GNU_VTENTRY:
3892 return NULL;
3893 }
3894
3895 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 3896}
a876ecf9 3897
25dbc73a
AM		 3898/* Update the got, plt and dynamic reloc reference counts for the
3899 section being removed. */
3900
3901static bfd_boolean
3902ppc_elf_gc_sweep_hook (bfd *abfd,
3903 struct bfd_link_info *info,
3904 asection *sec,
3905 const Elf_Internal_Rela *relocs)
3906{
3907 struct ppc_elf_link_hash_table *htab;
3908 Elf_Internal_Shdr *symtab_hdr;
3909 struct elf_link_hash_entry **sym_hashes;
3910 bfd_signed_vma *local_got_refcounts;
3911 const Elf_Internal_Rela *rel, *relend;
a6aa5195 3912 asection *got2;
25dbc73a 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);
3920 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
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:
3960 htab->tlsld_got.refcount -= 1;
3961 /* Fall thru */
3962
3963 case R_PPC_GOT_TLSGD16:
3964 case R_PPC_GOT_TLSGD16_LO:
3965 case R_PPC_GOT_TLSGD16_HI:
3966 case R_PPC_GOT_TLSGD16_HA:
3967 case R_PPC_GOT_TPREL16:
3968 case R_PPC_GOT_TPREL16_LO:
3969 case R_PPC_GOT_TPREL16_HI:
3970 case R_PPC_GOT_TPREL16_HA:
3971 case R_PPC_GOT_DTPREL16:
3972 case R_PPC_GOT_DTPREL16_LO:
3973 case R_PPC_GOT_DTPREL16_HI:
3974 case R_PPC_GOT_DTPREL16_HA:
3975 case R_PPC_GOT16:
3976 case R_PPC_GOT16_LO:
3977 case R_PPC_GOT16_HI:
3978 case R_PPC_GOT16_HA:
3979 if (h != NULL)
ee05f2fe 3980 {
25dbc73a
AM		 3981 if (h->got.refcount > 0)
3982 h->got.refcount--;
ee05f2fe 3983 }
25dbc73a
AM		 3984 else if (local_got_refcounts != NULL)
3985 {
3986 if (local_got_refcounts[r_symndx] > 0)
3987 local_got_refcounts[r_symndx]--;
3988 }
3989 break;
ee05f2fe 3990
25dbc73a
AM		 3991 case R_PPC_REL24:
3992 case R_PPC_REL14:
3993 case R_PPC_REL14_BRTAKEN:
3994 case R_PPC_REL14_BRNTAKEN:
3995 case R_PPC_REL32:
3b36f7e6 3996 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM		 3997 break;
3998 /* Fall thru */
ee05f2fe 3999
25dbc73a
AM		 4000 case R_PPC_ADDR32:
4001 case R_PPC_ADDR24:
4002 case R_PPC_ADDR16:
4003 case R_PPC_ADDR16_LO:
4004 case R_PPC_ADDR16_HI:
4005 case R_PPC_ADDR16_HA:
4006 case R_PPC_ADDR14:
4007 case R_PPC_ADDR14_BRTAKEN:
4008 case R_PPC_ADDR14_BRNTAKEN:
4009 case R_PPC_UADDR32:
4010 case R_PPC_UADDR16:
87538722
AM		 4011 if (info->shared)
4012 break;
4013
25dbc73a
AM		 4014 case R_PPC_PLT32:
4015 case R_PPC_PLTREL24:
87538722 4016 case R_PPC_PLTREL32:
25dbc73a
AM		 4017 case R_PPC_PLT16_LO:
4018 case R_PPC_PLT16_HI:
4019 case R_PPC_PLT16_HA:
4020 if (h != NULL)
4021 {
a6aa5195
AM		 4022 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
4023 struct plt_entry *ent = find_plt_ent (h, got2, addend);
4024 if (ent->plt.refcount > 0)
4025 ent->plt.refcount -= 1;
25dbc73a
AM		 4026 }
4027 break;
ee05f2fe 4028
25dbc73a
AM		 4029 default:
4030 break;
4031 }
7fce784e 4032 }
7fce784e
AS		 4033 return TRUE;
4034}
25dbc73a
AM		 4035\f
4036/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7fce784e 4037
25dbc73a
AM		 4038asection *
4039ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 4040{
25dbc73a 4041 struct ppc_elf_link_hash_table *htab;
7fce784e 4042
25dbc73a 4043 htab = ppc_elf_hash_table (info);
4a3dc543 4044 if (htab->plt_type == PLT_NEW
d7128ce4
AM		 4045 && htab->plt != NULL
4046 && htab->plt->output_section != NULL)
4047 {
4048 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4049 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4050 }
4051
25dbc73a
AM		 4052 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4053 FALSE, FALSE, TRUE);
25dbc73a 4054 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS		 4055}
4056
25dbc73a
AM		 4057/* Run through all the TLS relocs looking for optimization
4058 opportunities. */
252b5132 4059
25dbc73a
AM		 4060bfd_boolean
4061ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4062 struct bfd_link_info *info)
252b5132 4063{
7fce784e 4064 bfd *ibfd;
25dbc73a
AM		 4065 asection *sec;
4066 struct ppc_elf_link_hash_table *htab;
252b5132 4067
25dbc73a
AM		 4068 if (info->relocatable || info->shared)
4069 return TRUE;
252b5132 4070
7619e7c7 4071 htab = ppc_elf_hash_table (info);
25dbc73a 4072 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
252b5132 4073 {
25dbc73a
AM		 4074 Elf_Internal_Sym *locsyms = NULL;
4075 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7619e7c7 4076
25dbc73a
AM		 4077 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4078 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4079 {
4080 Elf_Internal_Rela *relstart, *rel, *relend;
4081 int expecting_tls_get_addr;
252b5132 4082
25dbc73a
AM		 4083 /* Read the relocations. */
4084 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4085 info->keep_memory);
4086 if (relstart == NULL)
4087 return FALSE;
7619e7c7 4088
25dbc73a
AM		 4089 expecting_tls_get_addr = 0;
4090 relend = relstart + sec->reloc_count;
4091 for (rel = relstart; rel < relend; rel++)
4092 {
4093 enum elf_ppc_reloc_type r_type;
4094 unsigned long r_symndx;
4095 struct elf_link_hash_entry *h = NULL;
4096 char *tls_mask;
4097 char tls_set, tls_clear;
4098 bfd_boolean is_local;
7fce784e 4099
25dbc73a
AM		 4100 r_symndx = ELF32_R_SYM (rel->r_info);
4101 if (r_symndx >= symtab_hdr->sh_info)
4102 {
4103 struct elf_link_hash_entry **sym_hashes;
7fce784e 4104
25dbc73a
AM		 4105 sym_hashes = elf_sym_hashes (ibfd);
4106 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4107 while (h->root.type == bfd_link_hash_indirect
4108 || h->root.type == bfd_link_hash_warning)
4109 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4110 }
7619e7c7 4111
25dbc73a
AM		 4112 is_local = FALSE;
4113 if (h == NULL
4114 || !h->def_dynamic)
4115 is_local = TRUE;
7619e7c7 4116
25dbc73a
AM		 4117 r_type = ELF32_R_TYPE (rel->r_info);
4118 switch (r_type)
7619e7c7 4119 {
25dbc73a
AM		 4120 case R_PPC_GOT_TLSLD16:
4121 case R_PPC_GOT_TLSLD16_LO:
4122 case R_PPC_GOT_TLSLD16_HI:
4123 case R_PPC_GOT_TLSLD16_HA:
4124 /* These relocs should never be against a symbol
4125 defined in a shared lib. Leave them alone if
4126 that turns out to be the case. */
4127 expecting_tls_get_addr = 0;
4128 htab->tlsld_got.refcount -= 1;
4129 if (!is_local)
4130 continue;
4131
4132 /* LD -> LE */
4133 tls_set = 0;
4134 tls_clear = TLS_LD;
4135 expecting_tls_get_addr = 1;
4136 break;
4137
4138 case R_PPC_GOT_TLSGD16:
4139 case R_PPC_GOT_TLSGD16_LO:
4140 case R_PPC_GOT_TLSGD16_HI:
4141 case R_PPC_GOT_TLSGD16_HA:
4142 if (is_local)
4143 /* GD -> LE */
4144 tls_set = 0;
4145 else
4146 /* GD -> IE */
4147 tls_set = TLS_TLS | TLS_TPRELGD;
4148 tls_clear = TLS_GD;
4149 expecting_tls_get_addr = 1;
4150 break;
4151
4152 case R_PPC_GOT_TPREL16:
4153 case R_PPC_GOT_TPREL16_LO:
4154 case R_PPC_GOT_TPREL16_HI:
4155 case R_PPC_GOT_TPREL16_HA:
4156 expecting_tls_get_addr = 0;
4157 if (is_local)
4158 {
4159 /* IE -> LE */
4160 tls_set = 0;
4161 tls_clear = TLS_TPREL;
4162 break;
4163 }
4164 else
4165 continue;
4166
4167 case R_PPC_REL14:
4168 case R_PPC_REL14_BRTAKEN:
4169 case R_PPC_REL14_BRNTAKEN:
4170 case R_PPC_REL24:
4171 if (expecting_tls_get_addr
4172 && h != NULL
4173 && h == htab->tls_get_addr)
4174 {
a6aa5195
AM		 4175 struct plt_entry *ent = find_plt_ent (h, NULL, 0);
4176 if (ent != NULL && ent->plt.refcount > 0)
4177 ent->plt.refcount -= 1;
25dbc73a
AM		 4178 }
4179 expecting_tls_get_addr = 0;
4180 continue;
4181
4182 default:
4183 expecting_tls_get_addr = 0;
4184 continue;
7619e7c7 4185 }
25dbc73a
AM		 4186
4187 if (h != NULL)
7619e7c7 4188 {
25dbc73a
AM		 4189 if (tls_set == 0)
4190 {
4191 /* We managed to get rid of a got entry. */
4192 if (h->got.refcount > 0)
4193 h->got.refcount -= 1;
4194 }
4195 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4196 }
4197 else
4198 {
4199 Elf_Internal_Sym *sym;
4200 bfd_signed_vma *lgot_refs;
4201 char *lgot_masks;
4202
4203 if (locsyms == NULL)
4204 {
4205 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4206 if (locsyms == NULL)
4207 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4208 symtab_hdr->sh_info,
4209 0, NULL, NULL, NULL);
4210 if (locsyms == NULL)
4211 {
4212 if (elf_section_data (sec)->relocs != relstart)
4213 free (relstart);
4214 return FALSE;
4215 }
4216 }
4217 sym = locsyms + r_symndx;
4218 lgot_refs = elf_local_got_refcounts (ibfd);
4219 if (lgot_refs == NULL)
4220 abort ();
4221 if (tls_set == 0)
4222 {
4223 /* We managed to get rid of a got entry. */
4224 if (lgot_refs[r_symndx] > 0)
4225 lgot_refs[r_symndx] -= 1;
4226 }
4227 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4228 tls_mask = &lgot_masks[r_symndx];
7619e7c7 4229 }
25dbc73a
AM		 4230
4231 *tls_mask |= tls_set;
4232 *tls_mask &= ~tls_clear;
7619e7c7 4233 }
25dbc73a
AM		 4234
4235 if (elf_section_data (sec)->relocs != relstart)
4236 free (relstart);
7619e7c7 4237 }
25dbc73a
AM		 4238
4239 if (locsyms != NULL
4240 && (symtab_hdr->contents != (unsigned char *) locsyms))
4241 {
4242 if (!info->keep_memory)
4243 free (locsyms);
4244 else
4245 symtab_hdr->contents = (unsigned char *) locsyms;
4246 }
7fce784e 4247 }
25dbc73a
AM		 4248 return TRUE;
4249}
4250\f
4251/* Adjust a symbol defined by a dynamic object and referenced by a
4252 regular object. The current definition is in some section of the
4253 dynamic object, but we're not including those sections. We have to
4254 change the definition to something the rest of the link can
4255 understand. */
7fce784e 4256
25dbc73a
AM		 4257static bfd_boolean
4258ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4259 struct elf_link_hash_entry *h)
4260{
4261 struct ppc_elf_link_hash_table *htab;
4262 asection *s;
7fce784e 4263
25dbc73a
AM		 4264#ifdef DEBUG
4265 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4266 h->root.root.string);
4267#endif
252b5132 4268
25dbc73a
AM		 4269 /* Make sure we know what is going on here. */
4270 htab = ppc_elf_hash_table (info);
4271 BFD_ASSERT (htab->elf.dynobj != NULL
4272 && (h->needs_plt
4273 || h->u.weakdef != NULL
4274 || (h->def_dynamic
4275 && h->ref_regular
4276 && !h->def_regular)));
252b5132 4277
25dbc73a
AM		 4278 /* Deal with function syms. */
4279 if (h->type == STT_FUNC
4280 || h->needs_plt)
4281 {
4282 /* Clear procedure linkage table information for any symbol that
4283 won't need a .plt entry. */
a6aa5195
AM		 4284 struct plt_entry *ent;
4285 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4286 if (ent->plt.refcount > 0)
4287 break;
4288 if (ent == NULL
25dbc73a
AM		 4289 || SYMBOL_CALLS_LOCAL (info, h)
4290 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4291 && h->root.type == bfd_link_hash_undefweak))
252b5132 4292 {
25dbc73a 4293 /* A PLT entry is not required/allowed when:
252b5132 4294
25dbc73a
AM		 4295 1. We are not using ld.so; because then the PLT entry
4296 can't be set up, so we can't use one. In this case,
4297 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4298
25dbc73a
AM		 4299 2. GC has rendered the entry unused.
4300
4301 3. We know for certain that a call to this symbol
4302 will go to this object, or will remain undefined. */
a6aa5195 4303 h->plt.plist = NULL;
25dbc73a
AM		 4304 h->needs_plt = 0;
4305 }
4306 return TRUE;
252b5132 4307 }
25dbc73a 4308 else
a6aa5195 4309 h->plt.plist = NULL;
252b5132 4310
25dbc73a
AM		 4311 /* If this is a weak symbol, and there is a real definition, the
4312 processor independent code will have arranged for us to see the
4313 real definition first, and we can just use the same value. */
4314 if (h->u.weakdef != NULL)
252b5132 4315 {
25dbc73a
AM		 4316 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4317 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4318 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4319 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4320 if (ELIMINATE_COPY_RELOCS)
4321 h->non_got_ref = h->u.weakdef->non_got_ref;
4322 return TRUE;
4323 }
dc810e39 4324
25dbc73a
AM		 4325 /* This is a reference to a symbol defined by a dynamic object which
4326 is not a function. */
252b5132 4327
25dbc73a
AM		 4328 /* If we are creating a shared library, we must presume that the
4329 only references to the symbol are via the global offset table.
4330 For such cases we need not do anything here; the relocations will
4331 be handled correctly by relocate_section. */
4332 if (info->shared)
4333 return TRUE;
252b5132 4334
25dbc73a
AM		 4335 /* If there are no references to this symbol that do not use the
4336 GOT, we don't need to generate a copy reloc. */
4337 if (!h->non_got_ref)
4338 return TRUE;
4339
cfd2c773
NS		 4340 /* If we didn't find any dynamic relocs in read-only sections, then
4341 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4342 We can't do this if there are any small data relocations. This
4343 doesn't work on VxWorks, where we can not have dynamic
4344 relocations (other than copy and jump slot relocations) in an
4345 executable. */
4dc4a9a5 4346 if (ELIMINATE_COPY_RELOCS
cfd2c773
NS		 4347 && !ppc_elf_hash_entry (h)->has_sda_refs
4348 && !htab->is_vxworks)
25dbc73a
AM		 4349 {
4350 struct ppc_elf_dyn_relocs *p;
4351 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
252b5132 4352 {
25dbc73a
AM		 4353 s = p->sec->output_section;
4354 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4355 break;
252b5132
RH		 4356 }
4357
25dbc73a 4358 if (p == NULL)
252b5132 4359 {
25dbc73a
AM		 4360 h->non_got_ref = 0;
4361 return TRUE;
252b5132
RH		 4362 }
4363 }
4364
909272ee
AM		 4365 if (h->size == 0)
4366 {
4367 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4368 h->root.root.string);
4369 return TRUE;
4370 }
4371
25dbc73a
AM		 4372 /* We must allocate the symbol in our .dynbss section, which will
4373 become part of the .bss section of the executable. There will be
4374 an entry for this symbol in the .dynsym section. The dynamic
4375 object will contain position independent code, so all references
4376 from the dynamic object to this symbol will go through the global
4377 offset table. The dynamic linker will use the .dynsym entry to
4378 determine the address it must put in the global offset table, so
4379 both the dynamic object and the regular object will refer to the
4380 same memory location for the variable.
4381
4dc4a9a5
DJ		 4382 Of course, if the symbol is referenced using SDAREL relocs, we
4383 must instead allocate it in .sbss. */
25dbc73a 4384
4dc4a9a5 4385 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4386 s = htab->dynsbss;
4387 else
4388 s = htab->dynbss;
4389 BFD_ASSERT (s != NULL);
4390
4391 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4392 copy the initial value out of the dynamic object and into the
4393 runtime process image. We need to remember the offset into the
4394 .rela.bss section we are going to use. */
4395 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4396 {
4397 asection *srel;
4398
4dc4a9a5 4399 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4400 srel = htab->relsbss;
4401 else
4402 srel = htab->relbss;
4403 BFD_ASSERT (srel != NULL);
4404 srel->size += sizeof (Elf32_External_Rela);
4405 h->needs_copy = 1;
4406 }
7619e7c7 4407
027297b7 4408 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM		 4409}
4410\f
ac39eb42
AM		 4411/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4412 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4413 specifying the addend on the plt relocation. For -fpic code, the sym
4414 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4415 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM		 4416
4417static bfd_boolean
4418add_stub_sym (struct plt_entry *ent,
4419 struct elf_link_hash_entry *h,
ac39eb42 4420 struct bfd_link_info *info)
0ba07910
AM		 4421{
4422 struct elf_link_hash_entry *sh;
4423 size_t len1, len2, len3;
4424 char *name;
ac39eb42
AM		 4425 const char *stub;
4426 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4427
4428 if (info->shared || info->pie)
4429 stub = ".plt_pic32.";
4430 else
4431 stub = ".plt_call32.";
0ba07910
AM		 4432
4433 len1 = strlen (h->root.root.string);
ac39eb42 4434 len2 = strlen (stub);
0ba07910
AM		 4435 len3 = 0;
4436 if (ent->sec)
4437 len3 = strlen (ent->sec->name);
ac39eb42 4438 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM		 4439 if (name == NULL)
4440 return FALSE;
4441 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4442 if (ent->sec)
4443 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM		 4444 memcpy (name + 8 + len3, stub, len2);
4445 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM		 4446 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4447 if (sh == NULL)
4448 return FALSE;
4449 if (sh->root.type == bfd_link_hash_new)
4450 {
4451 sh->root.type = bfd_link_hash_defined;
4452 sh->root.u.def.section = htab->glink;
4453 sh->root.u.def.value = ent->glink_offset;
4454 sh->ref_regular = 1;
4455 sh->def_regular = 1;
4456 sh->ref_regular_nonweak = 1;
4457 sh->forced_local = 1;
4458 sh->non_elf = 0;
4459 }
4460 return TRUE;
4461}
4462
3b36f7e6
AM		 4463/* Allocate NEED contiguous space in .got, and return the offset.
4464 Handles allocation of the got header when crossing 32k. */
4465
4466static bfd_vma
4467allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4468{
4469 bfd_vma where;
4a3dc543 4470 unsigned int max_before_header;
3b36f7e6 4471
4a3dc543 4472 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4473 {
4474 where = htab->got->size;
4475 htab->got->size += need;
4476 }
3b36f7e6
AM		 4477 else
4478 {
4a3dc543
RS		 4479 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4480 if (need <= htab->got_gap)
3b36f7e6 4481 {
4a3dc543
RS		 4482 where = max_before_header - htab->got_gap;
4483 htab->got_gap -= need;
4484 }
4485 else
4486 {
4487 if (htab->got->size + need > max_before_header
4488 && htab->got->size <= max_before_header)
4489 {
4490 htab->got_gap = max_before_header - htab->got->size;
4491 htab->got->size = max_before_header + htab->got_header_size;
4492 }
4493 where = htab->got->size;
4494 htab->got->size += need;
3b36f7e6 4495 }
3b36f7e6
AM		 4496 }
4497 return where;
4498}
4499
25dbc73a 4500/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 4501
b34976b6 4502static bfd_boolean
25dbc73a 4503allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 4504{
25dbc73a
AM		 4505 struct bfd_link_info *info = inf;
4506 struct ppc_elf_link_hash_entry *eh;
7619e7c7 4507 struct ppc_elf_link_hash_table *htab;
25dbc73a 4508 struct ppc_elf_dyn_relocs *p;
252b5132 4509
25dbc73a 4510 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4511 return TRUE;
252b5132 4512
25dbc73a
AM		 4513 if (h->root.type == bfd_link_hash_warning)
4514 /* When warning symbols are created, they **replace** the "real"
4515 entry in the hash table, thus we never get to see the real
4516 symbol in a hash traversal. So look at it now. */
4517 h = (struct elf_link_hash_entry *) h->root.u.i.link;
e47cd125 4518
7619e7c7 4519 htab = ppc_elf_hash_table (info);
a6aa5195 4520 if (htab->elf.dynamic_sections_created)
252b5132 4521 {
a6aa5195
AM		 4522 struct plt_entry *ent;
4523 bfd_boolean doneone = FALSE;
28e99bb6
AM		 4524 bfd_vma plt_offset = 0, glink_offset = 0;
4525
a6aa5195
AM		 4526 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4527 if (ent->plt.refcount > 0)
4528 {
4529 /* Make sure this symbol is output as a dynamic symbol. */
4530 if (h->dynindx == -1
4531 && !h->forced_local)
4532 {
4533 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4534 return FALSE;
4535 }
252b5132 4536
a6aa5195
AM		 4537 if (info->shared
4538 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4539 {
4540 asection *s = htab->plt;
7619e7c7 4541
4a3dc543 4542 if (htab->plt_type == PLT_NEW)
a6aa5195 4543 {
a6aa5195 4544 if (!doneone)
28e99bb6
AM		 4545 {
4546 plt_offset = s->size;
4547 s->size += 4;
4548 }
4549 ent->plt.offset = plt_offset;
d7128ce4 4550
a6aa5195 4551 s = htab->glink;
28e99bb6
AM		 4552 if (!doneone || info->shared || info->pie)
4553 {
4554 glink_offset = s->size;
4555 s->size += GLINK_ENTRY_SIZE;
4556 }
4557 if (!doneone
4558 && !info->shared
a6aa5195
AM		 4559 && !h->def_regular)
4560 {
4561 h->root.u.def.section = s;
28e99bb6 4562 h->root.u.def.value = glink_offset;
a6aa5195 4563 }
28e99bb6 4564 ent->glink_offset = glink_offset;
0ba07910
AM		 4565
4566 if (htab->emit_stub_syms
ac39eb42 4567 && !add_stub_sym (ent, h, info))
0ba07910 4568 return FALSE;
a6aa5195
AM		 4569 }
4570 else
4571 {
a6aa5195
AM		 4572 if (!doneone)
4573 {
28e99bb6
AM		 4574 /* If this is the first .plt entry, make room
4575 for the special first entry. */
4576 if (s->size == 0)
9d8504b1 4577 s->size += htab->plt_initial_entry_size;
28e99bb6
AM		 4578
4579 /* The PowerPC PLT is actually composed of two
4580 parts, the first part is 2 words (for a load
4581 and a jump), and then there is a remaining
4582 word available at the end. */
9d8504b1
PB		 4583 plt_offset = (htab->plt_initial_entry_size
4584 + (htab->plt_slot_size
4585 * ((s->size
4586 - htab->plt_initial_entry_size)
4587 / htab->plt_entry_size)));
28e99bb6
AM		 4588
4589 /* If this symbol is not defined in a regular
4590 file, and we are not generating a shared
4591 library, then set the symbol to this location
4592 in the .plt. This is required to make
4593 function pointers compare as equal between
4594 the normal executable and the shared library. */
4595 if (! info->shared
4596 && !h->def_regular)
4597 {
4598 h->root.u.def.section = s;
4599 h->root.u.def.value = plt_offset;
4600 }
4601
9d8504b1
PB		 4602 /* Make room for this entry. */
4603 s->size += htab->plt_entry_size;
4604 /* After the 8192nd entry, room for two entries
4605 is allocated. */
4a3dc543 4606 if (htab->plt_type == PLT_OLD
9d8504b1
PB		 4607 && (s->size - htab->plt_initial_entry_size)
4608 / htab->plt_entry_size
4609 > PLT_NUM_SINGLE_ENTRIES)
4610 s->size += htab->plt_entry_size;
a6aa5195 4611 }
28e99bb6 4612 ent->plt.offset = plt_offset;
a6aa5195 4613 }
25dbc73a 4614
a6aa5195
AM		 4615 /* We also need to make an entry in the .rela.plt section. */
4616 if (!doneone)
4617 {
4618 htab->relplt->size += sizeof (Elf32_External_Rela);
9d8504b1 4619
4a3dc543 4620 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4621 {
4622 /* Allocate space for the unloaded relocations. */
4623 if (!info->shared)
4624 {
4625 if (ent->plt.offset
4626 == (bfd_vma) htab->plt_initial_entry_size)
4627 {
4628 htab->srelplt2->size
4629 += sizeof (Elf32_External_Rela)
4630 * VXWORKS_PLTRESOLVE_RELOCS;
4631 }
4632
4633 htab->srelplt2->size
4634 += sizeof (Elf32_External_Rela)
4635 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4636 }
4637
4638 /* Every PLT entry has an associated GOT entry in
4639 .got.plt. */
4640 htab->sgotplt->size += 4;
4641 }
a6aa5195
AM		 4642 doneone = TRUE;
4643 }
4644 }
4645 else
4646 ent->plt.offset = (bfd_vma) -1;
a6aa5195 4647 }
2ce859a1
AM		 4648 else
4649 ent->plt.offset = (bfd_vma) -1;
4650
4651 if (!doneone)
4652 {
4653 h->plt.plist = NULL;
4654 h->needs_plt = 0;
4655 }
25dbc73a
AM		 4656 }
4657 else
4658 {
a6aa5195 4659 h->plt.plist = NULL;
25dbc73a
AM		 4660 h->needs_plt = 0;
4661 }
4662
4663 eh = (struct ppc_elf_link_hash_entry *) h;
4664 if (eh->elf.got.refcount > 0)
4665 {
4666 /* Make sure this symbol is output as a dynamic symbol. */
4667 if (eh->elf.dynindx == -1
4668 && !eh->elf.forced_local)
4669 {
4670 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 4671 return FALSE;
25dbc73a 4672 }
252b5132 4673
25dbc73a
AM		 4674 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4675 && !eh->elf.def_dynamic)
4676 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4677 eh->elf.got.offset = (bfd_vma) -1;
4678 else
4679 {
4680 bfd_boolean dyn;
3b36f7e6 4681 unsigned int need = 0;
25dbc73a 4682 if ((eh->tls_mask & TLS_TLS) != 0)
252b5132 4683 {
25dbc73a 4684 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6 4685 need += 8;
25dbc73a 4686 if ((eh->tls_mask & TLS_GD) != 0)
3b36f7e6 4687 need += 8;
25dbc73a 4688 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4689 need += 4;
25dbc73a 4690 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 4691 need += 4;
252b5132 4692 }
25dbc73a 4693 else
3b36f7e6
AM		 4694 need += 4;
4695 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM		 4696 dyn = htab->elf.dynamic_sections_created;
4697 if ((info->shared
4698 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4699 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4700 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 4701 {
3b36f7e6
AM		 4702 /* All the entries we allocated need relocs.
4703 Except LD only needs one. */
25dbc73a 4704 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6
AM		 4705 need -= 4;
4706 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 4707 }
25dbc73a
AM		 4708 }
4709 }
4710 else
4711 eh->elf.got.offset = (bfd_vma) -1;
252b5132 4712
25dbc73a
AM		 4713 if (eh->dyn_relocs == NULL)
4714 return TRUE;
252b5132 4715
25dbc73a
AM		 4716 /* In the shared -Bsymbolic case, discard space allocated for
4717 dynamic pc-relative relocs against symbols which turn out to be
4718 defined in regular objects. For the normal shared case, discard
4719 space for relocs that have become local due to symbol visibility
4720 changes. */
4721
4722 if (info->shared)
4723 {
4724 /* Relocs that use pc_count are those that appear on a call insn,
4725 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
4726 generated via assembly. We want calls to protected symbols to
4727 resolve directly to the function rather than going via the plt.
4728 If people want function pointer comparisons to work as expected
4729 then they should avoid writing weird assembly. */
4730 if (SYMBOL_CALLS_LOCAL (info, h))
4731 {
4732 struct ppc_elf_dyn_relocs **pp;
4733
4734 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 4735 {
25dbc73a
AM		 4736 p->count -= p->pc_count;
4737 p->pc_count = 0;
4738 if (p->count == 0)
4739 *pp = p->next;
4740 else
4741 pp = &p->next;
252b5132 4742 }
25dbc73a 4743 }
252b5132 4744
25dbc73a
AM		 4745 /* Also discard relocs on undefined weak syms with non-default
4746 visibility. */
cab87ef9
AM		 4747 if (eh->dyn_relocs != NULL
4748 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 4749 {
dfbb6ac9
AM		 4750 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4751 eh->dyn_relocs = NULL;
4752
4753 /* Make sure undefined weak symbols are output as a dynamic
4754 symbol in PIEs. */
4755 else if (h->dynindx == -1
4756 && !h->forced_local)
4757 {
4758 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4759 return FALSE;
4760 }
25dbc73a
AM		 4761 }
4762 }
4763 else if (ELIMINATE_COPY_RELOCS)
4764 {
4765 /* For the non-shared case, discard space for relocs against
4766 symbols which turn out to need copy relocs or are not
4767 dynamic. */
7619e7c7 4768
25dbc73a
AM		 4769 if (!h->non_got_ref
4770 && h->def_dynamic
4771 && !h->def_regular)
4772 {
4773 /* Make sure this symbol is output as a dynamic symbol.
4774 Undefined weak syms won't yet be marked as dynamic. */
4775 if (h->dynindx == -1
4776 && !h->forced_local)
4777 {
4778 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4779 return FALSE;
4780 }
7619e7c7 4781
25dbc73a
AM		 4782 /* If that succeeded, we know we'll be keeping all the
4783 relocs. */
4784 if (h->dynindx != -1)
4785 goto keep;
4786 }
252b5132 4787
25dbc73a 4788 eh->dyn_relocs = NULL;
252b5132 4789
25dbc73a
AM		 4790 keep: ;
4791 }
252b5132 4792
25dbc73a
AM		 4793 /* Finally, allocate space. */
4794 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4795 {
4796 asection *sreloc = elf_section_data (p->sec)->sreloc;
4797 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4798 }
252b5132 4799
25dbc73a
AM		 4800 return TRUE;
4801}
7619e7c7 4802
25dbc73a 4803/* Find any dynamic relocs that apply to read-only sections. */
7619e7c7 4804
25dbc73a
AM		 4805static bfd_boolean
4806readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
4807{
4808 struct ppc_elf_dyn_relocs *p;
7619e7c7 4809
25dbc73a
AM		 4810 if (h->root.type == bfd_link_hash_indirect)
4811 return TRUE;
252b5132 4812
25dbc73a
AM		 4813 if (h->root.type == bfd_link_hash_warning)
4814 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 4815
25dbc73a
AM		 4816 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4817 {
4818 asection *s = p->sec->output_section;
ee05f2fe 4819
25dbc73a
AM		 4820 if (s != NULL
4821 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4822 == (SEC_READONLY | SEC_ALLOC)))
4823 {
4824 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 4825
25dbc73a
AM		 4826 /* Not an error, just cut short the traversal. */
4827 return FALSE;
4828 }
4829 }
4830 return TRUE;
4831}
4832
4833/* Set the sizes of the dynamic sections. */
4834
4835static bfd_boolean
4836ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4837 struct bfd_link_info *info)
4838{
4839 struct ppc_elf_link_hash_table *htab;
4840 asection *s;
4841 bfd_boolean relocs;
4842 bfd *ibfd;
7fce784e 4843
252b5132 4844#ifdef DEBUG
25dbc73a 4845 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 4846#endif
252b5132 4847
25dbc73a
AM		 4848 htab = ppc_elf_hash_table (info);
4849 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 4850
25dbc73a
AM		 4851 if (elf_hash_table (info)->dynamic_sections_created)
4852 {
4853 /* Set the contents of the .interp section to the interpreter. */
4854 if (info->executable)
4855 {
4856 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
4857 BFD_ASSERT (s != NULL);
4858 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4859 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4860 }
4861 }
252b5132 4862
4a3dc543 4863 if (htab->plt_type == PLT_OLD)
d7128ce4 4864 htab->got_header_size = 16;
4a3dc543 4865 else if (htab->plt_type == PLT_NEW)
d7128ce4 4866 htab->got_header_size = 12;
252b5132 4867
25dbc73a
AM		 4868 /* Set up .got offsets for local syms, and space for local dynamic
4869 relocs. */
4870 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4871 {
4872 bfd_signed_vma *local_got;
4873 bfd_signed_vma *end_local_got;
4874 char *lgot_masks;
4875 bfd_size_type locsymcount;
4876 Elf_Internal_Shdr *symtab_hdr;
7fce784e 4877
d2663f46 4878 if (!is_ppc_elf_target (ibfd->xvec))
25dbc73a 4879 continue;
7fce784e 4880
25dbc73a
AM		 4881 for (s = ibfd->sections; s != NULL; s = s->next)
4882 {
4883 struct ppc_elf_dyn_relocs *p;
252b5132 4884
25dbc73a
AM		 4885 for (p = ((struct ppc_elf_dyn_relocs *)
4886 elf_section_data (s)->local_dynrel);
4887 p != NULL;
4888 p = p->next)
4889 {
4890 if (!bfd_is_abs_section (p->sec)
4891 && bfd_is_abs_section (p->sec->output_section))
4892 {
4893 /* Input section has been discarded, either because
4894 it is a copy of a linkonce section or due to
4895 linker script /DISCARD/, so we'll be discarding
4896 the relocs too. */
7fce784e 4897 }
25dbc73a 4898 else if (p->count != 0)
7fce784e 4899 {
25dbc73a
AM		 4900 elf_section_data (p->sec)->sreloc->size
4901 += p->count * sizeof (Elf32_External_Rela);
4902 if ((p->sec->output_section->flags
4903 & (SEC_READONLY | SEC_ALLOC))
4904 == (SEC_READONLY | SEC_ALLOC))
4905 info->flags |= DF_TEXTREL;
7fce784e 4906 }
252b5132 4907 }
252b5132 4908 }
252b5132 4909
25dbc73a
AM		 4910 local_got = elf_local_got_refcounts (ibfd);
4911 if (!local_got)
4912 continue;
252b5132 4913
25dbc73a
AM		 4914 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4915 locsymcount = symtab_hdr->sh_info;
4916 end_local_got = local_got + locsymcount;
4917 lgot_masks = (char *) end_local_got;
25dbc73a
AM		 4918 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
4919 if (*local_got > 0)
4920 {
4921 if (*lgot_masks == (TLS_TLS | TLS_LD))
4922 {
4923 /* If just an LD reloc, we'll just use
4924 htab->tlsld_got.offset. */
3b36f7e6 4925 htab->tlsld_got.refcount += 1;
25dbc73a
AM		 4926 *local_got = (bfd_vma) -1;
4927 }
4928 else
4929 {
3b36f7e6 4930 unsigned int need = 0;
25dbc73a
AM		 4931 if ((*lgot_masks & TLS_TLS) != 0)
4932 {
4933 if ((*lgot_masks & TLS_GD) != 0)
3b36f7e6 4934 need += 8;
25dbc73a 4935 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4936 need += 4;
25dbc73a 4937 if ((*lgot_masks & TLS_DTPREL) != 0)
3b36f7e6 4938 need += 4;
25dbc73a
AM		 4939 }
4940 else
3b36f7e6
AM		 4941 need += 4;
4942 *local_got = allocate_got (htab, need);
25dbc73a 4943 if (info->shared)
3b36f7e6
AM		 4944 htab->relgot->size += (need
4945 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM		 4946 }
4947 }
4948 else
4949 *local_got = (bfd_vma) -1;
4950 }
252b5132 4951
3b36f7e6
AM		 4952 if (htab->tlsld_got.refcount > 0)
4953 {
4954 htab->tlsld_got.offset = allocate_got (htab, 8);
4955 if (info->shared)
4956 htab->relgot->size += sizeof (Elf32_External_Rela);
4957 }
4958 else
4959 htab->tlsld_got.offset = (bfd_vma) -1;
4960
25dbc73a
AM		 4961 /* Allocate space for global sym dynamic relocs. */
4962 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
4963
4a3dc543 4964 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM		 4965 {
4966 unsigned int g_o_t = 32768;
4967
4d962050
AM		 4968 /* If we haven't allocated the header, do so now. When we get here,
4969 for old plt/got the got size will be 0 to 32764 (not allocated),
4970 or 32780 to 65536 (header allocated). For new plt/got, the
4971 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM		 4972 if (htab->got->size <= 32768)
4973 {
4974 g_o_t = htab->got->size;
4a3dc543 4975 if (htab->plt_type == PLT_OLD)
4d962050 4976 g_o_t += 4;
3b36f7e6
AM		 4977 htab->got->size += htab->got_header_size;
4978 }
3b36f7e6
AM		 4979
4980 htab->elf.hgot->root.u.def.value = g_o_t;
4981 }
4982
d7128ce4
AM		 4983 if (htab->glink != NULL && htab->glink->size != 0)
4984 {
4985 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM		 4986 /* Space for the branch table. */
4987 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
4988 /* Pad out to align the start of PLTresolve. */
4989 htab->glink->size += -htab->glink->size & 15;
d7128ce4 4990 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM		 4991
4992 if (htab->emit_stub_syms)
4993 {
4994 struct elf_link_hash_entry *sh;
4995 sh = elf_link_hash_lookup (&htab->elf, "__glink",
4996 TRUE, FALSE, FALSE);
4997 if (sh == NULL)
4998 return FALSE;
4999 if (sh->root.type == bfd_link_hash_new)
5000 {
5001 sh->root.type = bfd_link_hash_defined;
5002 sh->root.u.def.section = htab->glink;
5003 sh->root.u.def.value = htab->glink_pltresolve;
5004 sh->ref_regular = 1;
5005 sh->def_regular = 1;
5006 sh->ref_regular_nonweak = 1;
5007 sh->forced_local = 1;
5008 sh->non_elf = 0;
5009 }
5010 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5011 TRUE, FALSE, FALSE);
5012 if (sh == NULL)
5013 return FALSE;
5014 if (sh->root.type == bfd_link_hash_new)
5015 {
5016 sh->root.type = bfd_link_hash_defined;
5017 sh->root.u.def.section = htab->glink;
5018 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5019 sh->ref_regular = 1;
5020 sh->def_regular = 1;
5021 sh->ref_regular_nonweak = 1;
5022 sh->forced_local = 1;
5023 sh->non_elf = 0;
5024 }
5025 }
d7128ce4
AM		 5026 }
5027
25dbc73a
AM		 5028 /* We've now determined the sizes of the various dynamic sections.
5029 Allocate memory for them. */
5030 relocs = FALSE;
5031 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 5032 {
9d8504b1
PB		 5033 bfd_boolean strip_section = TRUE;
5034
25dbc73a
AM		 5035 if ((s->flags & SEC_LINKER_CREATED) == 0)
5036 continue;
252b5132 5037
25dbc73a 5038 if (s == htab->plt
d7128ce4 5039 || s == htab->glink
644285ef 5040 || s == htab->got
9d8504b1 5041 || s == htab->sgotplt
c456f082
AM		 5042 || s == htab->sbss
5043 || s == htab->dynbss
5044 || s == htab->dynsbss)
25dbc73a 5045 {
9d8504b1
PB		 5046 /* We'd like to strip these sections if they aren't needed, but if
5047 we've exported dynamic symbols from them we must leave them.
5048 It's too late to tell BFD to get rid of the symbols. */
7325306f 5049 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
9d8504b1 5050 strip_section = FALSE;
25dbc73a
AM		 5051 /* Strip this section if we don't need it; see the
5052 comment below. */
5053 }
c9a2f333
AM		 5054 else if (s == htab->sdata[0].section
5055 || s == htab->sdata[1].section)
25dbc73a 5056 {
c9a2f333 5057 /* Strip these too. */
25dbc73a 5058 }
0112cd26 5059 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
25dbc73a 5060 {
c456f082 5061 if (s->size != 0)
25dbc73a
AM		 5062 {
5063 /* Remember whether there are any relocation sections. */
5064 relocs = TRUE;
252b5132 5065
25dbc73a
AM		 5066 /* We use the reloc_count field as a counter if we need
5067 to copy relocs into the output file. */
5068 s->reloc_count = 0;
252b5132
RH		 5069 }
5070 }
25dbc73a
AM		 5071 else
5072 {
5073 /* It's not one of our sections, so don't allocate space. */
5074 continue;
5075 }
252b5132 5076
9d8504b1 5077 if (s->size == 0 && strip_section)
25dbc73a 5078 {
c456f082
AM		 5079 /* If we don't need this section, strip it from the
5080 output file. This is mostly to handle .rela.bss and
5081 .rela.plt. We must create both sections in
5082 create_dynamic_sections, because they must be created
5083 before the linker maps input sections to output
5084 sections. The linker does that before
5085 adjust_dynamic_symbol is called, and it is that
5086 function which decides whether anything needs to go
5087 into these sections. */
8423293d 5088 s->flags |= SEC_EXCLUDE;
25dbc73a
AM		 5089 continue;
5090 }
7fce784e 5091
d7128ce4 5092 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM		 5093 continue;
5094
25dbc73a
AM		 5095 /* Allocate memory for the section contents. */
5096 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5097 if (s->contents == NULL)
5098 return FALSE;
5099 }
252b5132 5100
25dbc73a 5101 if (htab->elf.dynamic_sections_created)
7619e7c7 5102 {
25dbc73a
AM		 5103 /* Add some entries to the .dynamic section. We fill in the
5104 values later, in ppc_elf_finish_dynamic_sections, but we
5105 must add the entries now so that we get the correct size for
5106 the .dynamic section. The DT_DEBUG entry is filled in by the
5107 dynamic linker and used by the debugger. */
5108#define add_dynamic_entry(TAG, VAL) \
5109 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 5110
25dbc73a 5111 if (info->executable)
7619e7c7 5112 {
25dbc73a
AM		 5113 if (!add_dynamic_entry (DT_DEBUG, 0))
5114 return FALSE;
7619e7c7
AM		 5115 }
5116
25dbc73a 5117 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 5118 {
25dbc73a
AM		 5119 if (!add_dynamic_entry (DT_PLTGOT, 0)
5120 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5121 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5122 || !add_dynamic_entry (DT_JMPREL, 0))
5123 return FALSE;
5124 }
7619e7c7 5125
d7128ce4
AM		 5126 if (htab->glink != NULL && htab->glink->size != 0)
5127 {
1fe44d79 5128 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4
AM		 5129 return FALSE;
5130 }
5131
25dbc73a
AM		 5132 if (relocs)
5133 {
5134 if (!add_dynamic_entry (DT_RELA, 0)
5135 || !add_dynamic_entry (DT_RELASZ, 0)
5136 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5137 return FALSE;
5138 }
7619e7c7 5139
25dbc73a
AM		 5140 /* If any dynamic relocs apply to a read-only section, then we
5141 need a DT_TEXTREL entry. */
5142 if ((info->flags & DF_TEXTREL) == 0)
5143 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
5144 info);
7619e7c7 5145
25dbc73a
AM		 5146 if ((info->flags & DF_TEXTREL) != 0)
5147 {
5148 if (!add_dynamic_entry (DT_TEXTREL, 0))
5149 return FALSE;
7619e7c7
AM		 5150 }
5151 }
25dbc73a
AM		 5152#undef add_dynamic_entry
5153
7619e7c7
AM		 5154 return TRUE;
5155}
25dbc73a
AM		 5156\f
5157#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5158
5159static const int shared_stub_entry[] =
5160 {
5161 0x7c0802a6, /* mflr 0 */
5162 0x429f0005, /* bcl 20, 31, .Lxxx */
5163 0x7d6802a6, /* mflr 11 */
5164 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
5165 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
5166 0x7c0803a6, /* mtlr 0 */
5167 0x7d6903a6, /* mtctr 11 */
5168 0x4e800420, /* bctr */
5169 };
5170
5171static const int stub_entry[] =
5172 {
5173 0x3d600000, /* lis 11,xxx@ha */
5174 0x396b0000, /* addi 11,11,xxx@l */
5175 0x7d6903a6, /* mtctr 11 */
5176 0x4e800420, /* bctr */
5177 };
5178
5179static bfd_boolean
5180ppc_elf_relax_section (bfd *abfd,
5181 asection *isec,
5182 struct bfd_link_info *link_info,
5183 bfd_boolean *again)
5184{
5185 struct one_fixup
5186 {
5187 struct one_fixup *next;
5188 asection *tsec;
5189 bfd_vma toff;
5190 bfd_vma trampoff;
5191 };
7619e7c7 5192
25dbc73a
AM		 5193 Elf_Internal_Shdr *symtab_hdr;
5194 bfd_byte *contents = NULL;
5195 Elf_Internal_Sym *isymbuf = NULL;
5196 Elf_Internal_Rela *internal_relocs = NULL;
5197 Elf_Internal_Rela *irel, *irelend;
5198 struct one_fixup *fixups = NULL;
5199 bfd_boolean changed;
d7128ce4 5200 struct ppc_elf_link_hash_table *htab;
25dbc73a 5201 bfd_size_type trampoff;
a6aa5195 5202 asection *got2;
7619e7c7 5203
25dbc73a 5204 *again = FALSE;
7619e7c7 5205
c87b5a93
AM		 5206 /* Nothing to do if there are no relocations, and no need to do
5207 anything with non-alloc sections. */
5208 if ((isec->flags & SEC_ALLOC) == 0
5209 || (isec->flags & SEC_RELOC) == 0
5210 || isec->reloc_count == 0)
25dbc73a 5211 return TRUE;
7619e7c7 5212
25dbc73a
AM		 5213 trampoff = (isec->size + 3) & (bfd_vma) -4;
5214 /* Space for a branch around any trampolines. */
5215 trampoff += 4;
7619e7c7 5216
25dbc73a 5217 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
7619e7c7 5218
25dbc73a
AM		 5219 /* Get a copy of the native relocations. */
5220 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5221 link_info->keep_memory);
5222 if (internal_relocs == NULL)
5223 goto error_return;
7619e7c7 5224
d7128ce4 5225 htab = ppc_elf_hash_table (link_info);
a6aa5195 5226 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 5227
a6aa5195 5228 irelend = internal_relocs + isec->reloc_count;
25dbc73a 5229 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 5230 {
25dbc73a
AM		 5231 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5232 bfd_vma symaddr, reladdr, toff, roff;
5233 asection *tsec;
5234 struct one_fixup *f;
5235 size_t insn_offset = 0;
5236 bfd_vma max_branch_offset, val;
5237 bfd_byte *hit_addr;
5238 unsigned long t0;
5239 unsigned char sym_type;
7619e7c7 5240
25dbc73a
AM		 5241 switch (r_type)
5242 {
5243 case R_PPC_REL24:
5244 case R_PPC_LOCAL24PC:
5245 case R_PPC_PLTREL24:
5246 max_branch_offset = 1 << 25;
5247 break;
7619e7c7 5248
25dbc73a
AM		 5249 case R_PPC_REL14:
5250 case R_PPC_REL14_BRTAKEN:
5251 case R_PPC_REL14_BRNTAKEN:
5252 max_branch_offset = 1 << 15;
5253 break;
7619e7c7 5254
25dbc73a
AM		 5255 default:
5256 continue;
5257 }
7619e7c7 5258
25dbc73a
AM		 5259 /* Get the value of the symbol referred to by the reloc. */
5260 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5261 {
5262 /* A local symbol. */
5263 Elf_Internal_Sym *isym;
7fce784e 5264
25dbc73a
AM		 5265 /* Read this BFD's local symbols. */
5266 if (isymbuf == NULL)
5267 {
5268 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5269 if (isymbuf == NULL)
5270 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5271 symtab_hdr->sh_info, 0,
5272 NULL, NULL, NULL);
5273 if (isymbuf == 0)
5274 goto error_return;
5275 }
5276 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5277 if (isym->st_shndx == SHN_UNDEF)
5278 continue; /* We can't do anything with undefined symbols. */
5279 else if (isym->st_shndx == SHN_ABS)
5280 tsec = bfd_abs_section_ptr;
5281 else if (isym->st_shndx == SHN_COMMON)
5282 tsec = bfd_com_section_ptr;
5283 else
5284 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 5285
25dbc73a
AM		 5286 toff = isym->st_value;
5287 sym_type = ELF_ST_TYPE (isym->st_info);
5288 }
5289 else
5290 {
5291 /* Global symbol handling. */
5292 unsigned long indx;
5293 struct elf_link_hash_entry *h;
7619e7c7 5294
25dbc73a
AM		 5295 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5296 h = elf_sym_hashes (abfd)[indx];
7619e7c7 5297
25dbc73a
AM		 5298 while (h->root.type == bfd_link_hash_indirect
5299 || h->root.type == bfd_link_hash_warning)
5300 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5301
a6aa5195
AM		 5302 tsec = NULL;
5303 toff = 0;
25dbc73a 5304 if (r_type == R_PPC_PLTREL24
a6aa5195 5305 && htab->plt != NULL)
25dbc73a 5306 {
a6aa5195
AM		 5307 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5308
5309 if (ent != NULL)
d7128ce4 5310 {
4a3dc543 5311 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 5312 {
5313 tsec = htab->glink;
5314 toff = ent->glink_offset;
5315 }
5316 else
5317 {
5318 tsec = htab->plt;
5319 toff = ent->plt.offset;
5320 }
d7128ce4 5321 }
25dbc73a 5322 }
a6aa5195
AM		 5323 if (tsec != NULL)
5324 ;
25dbc73a
AM		 5325 else if (h->root.type == bfd_link_hash_defined
5326 || h->root.type == bfd_link_hash_defweak)
5327 {
5328 tsec = h->root.u.def.section;
5329 toff = h->root.u.def.value;
5330 }
5331 else
5332 continue;
7619e7c7 5333
25dbc73a
AM		 5334 sym_type = h->type;
5335 }
7619e7c7 5336
25dbc73a
AM		 5337 /* If the branch and target are in the same section, you have
5338 no hope of adding stubs. We'll error out later should the
5339 branch overflow. */
5340 if (tsec == isec)
5341 continue;
5342
5343 /* There probably isn't any reason to handle symbols in
5344 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5345 attribute for a code section, and we are only looking at
5346 branches. However, implement it correctly here as a
5347 reference for other target relax_section functions. */
5348 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5349 {
5350 /* At this stage in linking, no SEC_MERGE symbol has been
5351 adjusted, so all references to such symbols need to be
5352 passed through _bfd_merged_section_offset. (Later, in
5353 relocate_section, all SEC_MERGE symbols *except* for
5354 section symbols have been adjusted.)
5355
5356 gas may reduce relocations against symbols in SEC_MERGE
5357 sections to a relocation against the section symbol when
5358 the original addend was zero. When the reloc is against
5359 a section symbol we should include the addend in the
5360 offset passed to _bfd_merged_section_offset, since the
5361 location of interest is the original symbol. On the
5362 other hand, an access to "sym+addend" where "sym" is not
5363 a section symbol should not include the addend; Such an
5364 access is presumed to be an offset from "sym"; The
5365 location of interest is just "sym". */
5366 if (sym_type == STT_SECTION)
5367 toff += irel->r_addend;
7619e7c7 5368
25dbc73a
AM		 5369 toff = _bfd_merged_section_offset (abfd, &tsec,
5370 elf_section_data (tsec)->sec_info,
5371 toff);
7619e7c7 5372
25dbc73a
AM		 5373 if (sym_type != STT_SECTION)
5374 toff += irel->r_addend;
5375 }
a6aa5195
AM		 5376 /* PLTREL24 addends are special. */
5377 else if (r_type != R_PPC_PLTREL24)
25dbc73a 5378 toff += irel->r_addend;
7619e7c7 5379
7de713b9
AM		 5380 /* Attempted -shared link of non-pic code loses. */
5381 if (tsec->output_section == NULL)
5382 continue;
5383
25dbc73a 5384 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7619e7c7 5385
25dbc73a
AM		 5386 roff = irel->r_offset;
5387 reladdr = isec->output_section->vma + isec->output_offset + roff;
7619e7c7 5388
25dbc73a
AM		 5389 /* If the branch is in range, no need to do anything. */
5390 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5391 continue;
252b5132 5392
25dbc73a
AM		 5393 /* Look for an existing fixup to this address. */
5394 for (f = fixups; f ; f = f->next)
5395 if (f->tsec == tsec && f->toff == toff)
5396 break;
5397
5398 if (f == NULL)
7619e7c7 5399 {
25dbc73a
AM		 5400 size_t size;
5401 unsigned long stub_rtype;
252b5132 5402
25dbc73a
AM		 5403 val = trampoff - roff;
5404 if (val >= max_branch_offset)
5405 /* Oh dear, we can't reach a trampoline. Don't try to add
5406 one. We'll report an error later. */
5407 continue;
252b5132 5408
25dbc73a
AM		 5409 if (link_info->shared)
5410 {
5411 size = 4 * ARRAY_SIZE (shared_stub_entry);
5412 insn_offset = 12;
5413 stub_rtype = R_PPC_RELAX32PC;
5414 }
5415 else
5416 {
5417 size = 4 * ARRAY_SIZE (stub_entry);
5418 insn_offset = 0;
5419 stub_rtype = R_PPC_RELAX32;
5420 }
dc810e39 5421
25dbc73a
AM		 5422 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5423 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5424 abort ();
d7128ce4
AM		 5425 if (tsec == htab->plt
5426 || tsec == htab->glink)
25dbc73a 5427 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
252b5132 5428
25dbc73a
AM		 5429 /* Hijack the old relocation. Since we need two
5430 relocations for this use a "composite" reloc. */
5431 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5432 stub_rtype);
5433 irel->r_offset = trampoff + insn_offset;
252b5132 5434
25dbc73a
AM		 5435 /* Record the fixup so we don't do it again this section. */
5436 f = bfd_malloc (sizeof (*f));
5437 f->next = fixups;
5438 f->tsec = tsec;
5439 f->toff = toff;
5440 f->trampoff = trampoff;
5441 fixups = f;
252b5132 5442
25dbc73a
AM		 5443 trampoff += size;
5444 }
5445 else
5446 {
5447 val = f->trampoff - roff;
5448 if (val >= max_branch_offset)
5449 continue;
252b5132 5450
25dbc73a
AM		 5451 /* Nop out the reloc, since we're finalizing things here. */
5452 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5453 }
252b5132 5454
25dbc73a
AM		 5455 /* Get the section contents. */
5456 if (contents == NULL)
5457 {
5458 /* Get cached copy if it exists. */
5459 if (elf_section_data (isec)->this_hdr.contents != NULL)
5460 contents = elf_section_data (isec)->this_hdr.contents;
5461 else
5462 {
5463 /* Go get them off disk. */
5464 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5465 goto error_return;
5466 }
5467 }
252b5132 5468
25dbc73a
AM		 5469 /* Fix up the existing branch to hit the trampoline. */
5470 hit_addr = contents + roff;
5471 switch (r_type)
5472 {
5473 case R_PPC_REL24:
5474 case R_PPC_LOCAL24PC:
5475 case R_PPC_PLTREL24:
5476 t0 = bfd_get_32 (abfd, hit_addr);
5477 t0 &= ~0x3fffffc;
5478 t0 |= val & 0x3fffffc;
5479 bfd_put_32 (abfd, t0, hit_addr);
5480 break;
252b5132 5481
25dbc73a
AM		 5482 case R_PPC_REL14:
5483 case R_PPC_REL14_BRTAKEN:
5484 case R_PPC_REL14_BRNTAKEN:
5485 t0 = bfd_get_32 (abfd, hit_addr);
5486 t0 &= ~0xfffc;
5487 t0 |= val & 0xfffc;
5488 bfd_put_32 (abfd, t0, hit_addr);
5489 break;
5490 }
5491 }
252b5132 5492
25dbc73a
AM		 5493 /* Write out the trampolines. */
5494 changed = fixups != NULL;
5495 if (fixups != NULL)
5496 {
5497 const int *stub;
5498 bfd_byte *dest;
5499 bfd_vma val;
5500 int i, size;
252b5132 5501
25dbc73a
AM		 5502 do
5503 {
5504 struct one_fixup *f = fixups;
5505 fixups = fixups->next;
5506 free (f);
5507 }
5508 while (fixups);
252b5132 5509
25dbc73a
AM		 5510 contents = bfd_realloc (contents, trampoff);
5511 if (contents == NULL)
5512 goto error_return;
252b5132 5513
25dbc73a
AM		 5514 isec->size = (isec->size + 3) & (bfd_vma) -4;
5515 /* Branch around the trampolines. */
5516 val = trampoff - isec->size + 0x48000000;
5517 dest = contents + isec->size;
5518 isec->size = trampoff;
5519 bfd_put_32 (abfd, val, dest);
5520 dest += 4;
252b5132 5521
25dbc73a
AM		 5522 if (link_info->shared)
5523 {
5524 stub = shared_stub_entry;
5525 size = ARRAY_SIZE (shared_stub_entry);
5526 }
5527 else
5528 {
5529 stub = stub_entry;
5530 size = ARRAY_SIZE (stub_entry);
5531 }
252b5132 5532
25dbc73a
AM		 5533 i = 0;
5534 while (dest < contents + trampoff)
252b5132 5535 {
25dbc73a
AM		 5536 bfd_put_32 (abfd, stub[i], dest);
5537 i++;
5538 if (i == size)
5539 i = 0;
5540 dest += 4;
252b5132 5541 }
25dbc73a 5542 BFD_ASSERT (i == 0);
252b5132
RH		 5543 }
5544
25dbc73a
AM		 5545 if (isymbuf != NULL
5546 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 5547 {
25dbc73a
AM		 5548 if (! link_info->keep_memory)
5549 free (isymbuf);
252b5132 5550 else
25dbc73a
AM		 5551 {
5552 /* Cache the symbols for elf_link_input_bfd. */
5553 symtab_hdr->contents = (unsigned char *) isymbuf;
5554 }
252b5132
RH		 5555 }
5556
25dbc73a
AM		 5557 if (contents != NULL
5558 && elf_section_data (isec)->this_hdr.contents != contents)
5559 {
5560 if (!changed && !link_info->keep_memory)
5561 free (contents);
5562 else
5563 {
5564 /* Cache the section contents for elf_link_input_bfd. */
5565 elf_section_data (isec)->this_hdr.contents = contents;
5566 }
5567 }
252b5132 5568
25dbc73a
AM		 5569 if (elf_section_data (isec)->relocs != internal_relocs)
5570 {
5571 if (!changed)
5572 free (internal_relocs);
5573 else
5574 elf_section_data (isec)->relocs = internal_relocs;
5575 }
252b5132 5576
25dbc73a 5577 *again = changed;
b34976b6 5578 return TRUE;
25dbc73a
AM		 5579
5580 error_return:
5581 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5582 free (isymbuf);
5583 if (contents != NULL
5584 && elf_section_data (isec)->this_hdr.contents != contents)
5585 free (contents);
5586 if (internal_relocs != NULL
5587 && elf_section_data (isec)->relocs != internal_relocs)
5588 free (internal_relocs);
5589 return FALSE;
252b5132 5590}
252b5132 5591\f
8a696751
AM		 5592/* What to do when ld finds relocations against symbols defined in
5593 discarded sections. */
5594
5595static unsigned int
5596ppc_elf_action_discarded (asection *sec)
5597{
5598 if (strcmp (".fixup", sec->name) == 0)
5599 return 0;
5600
5601 if (strcmp (".got2", sec->name) == 0)
5602 return 0;
5603
5604 return _bfd_elf_default_action_discarded (sec);
5605}
c9a2f333 5606\f
25dbc73a 5607/* Fill in the address for a pointer generated in a linker section. */
252b5132 5608
25dbc73a 5609static bfd_vma
76750a2f 5610elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM		 5611 elf_linker_section_t *lsect,
5612 struct elf_link_hash_entry *h,
5613 bfd_vma relocation,
2bb04cf2 5614 const Elf_Internal_Rela *rel)
25dbc73a
AM		 5615{
5616 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 5617
25dbc73a 5618 BFD_ASSERT (lsect != NULL);
252b5132 5619
25dbc73a 5620 if (h != NULL)
252b5132 5621 {
25dbc73a
AM		 5622 /* Handle global symbol. */
5623 struct ppc_elf_link_hash_entry *eh;
252b5132 5624
25dbc73a 5625 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM		 5626 BFD_ASSERT (eh->elf.def_regular);
5627 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM		 5628 }
5629 else
5630 {
5631 /* Handle local symbol. */
5632 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 5633
25dbc73a 5634 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM		 5635 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5636 }
252b5132 5637
76750a2f
AM		 5638 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5639 rel->r_addend,
5640 lsect);
5641 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 5642
76750a2f
AM		 5643 /* Offset will always be a multiple of four, so use the bottom bit
5644 as a "written" flag. */
5645 if ((linker_section_ptr->offset & 1) == 0)
5646 {
5647 bfd_put_32 (lsect->section->owner,
5648 relocation + linker_section_ptr->addend,
5649 lsect->section->contents + linker_section_ptr->offset);
5650 linker_section_ptr->offset += 1;
252b5132
RH		 5651 }
5652
25dbc73a 5653 relocation = (lsect->section->output_offset
76750a2f 5654 + linker_section_ptr->offset - 1
c9a2f333 5655 - 0x8000);
252b5132 5656
25dbc73a
AM		 5657#ifdef DEBUG
5658 fprintf (stderr,
5659 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5660 lsect->name, (long) relocation, (long) relocation);
5661#endif
252b5132 5662
25dbc73a
AM		 5663 /* Subtract out the addend, because it will get added back in by the normal
5664 processing. */
5665 return relocation - linker_section_ptr->addend;
252b5132 5666}
25dbc73a 5667
252b5132
RH		 5668/* The RELOCATE_SECTION function is called by the ELF backend linker
5669 to handle the relocations for a section.
5670
5671 The relocs are always passed as Rela structures; if the section
5672 actually uses Rel structures, the r_addend field will always be
5673 zero.
5674
5675 This function is responsible for adjust the section contents as
5676 necessary, and (if using Rela relocs and generating a
1049f94e 5677 relocatable output file) adjusting the reloc addend as
252b5132
RH		 5678 necessary.
5679
5680 This function does not have to worry about setting the reloc
5681 address or the reloc symbol index.
5682
5683 LOCAL_SYMS is a pointer to the swapped in local symbols.
5684
5685 LOCAL_SECTIONS is an array giving the section in the input file
5686 corresponding to the st_shndx field of each local symbol.
5687
5688 The global hash table entry for the global symbols can be found
5689 via elf_sym_hashes (input_bfd).
5690
1049f94e 5691 When generating relocatable output, this function must handle
252b5132
RH		 5692 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
5693 going to be the section symbol corresponding to the output
5694 section, which means that the addend must be adjusted
5695 accordingly. */
5696
b34976b6 5697static bfd_boolean
55fd94b0
AM		 5698ppc_elf_relocate_section (bfd *output_bfd,
5699 struct bfd_link_info *info,
5700 bfd *input_bfd,
5701 asection *input_section,
5702 bfd_byte *contents,
5703 Elf_Internal_Rela *relocs,
5704 Elf_Internal_Sym *local_syms,
5705 asection **local_sections)
252b5132 5706{
7619e7c7
AM		 5707 Elf_Internal_Shdr *symtab_hdr;
5708 struct elf_link_hash_entry **sym_hashes;
5709 struct ppc_elf_link_hash_table *htab;
5710 Elf_Internal_Rela *rel;
5711 Elf_Internal_Rela *relend;
5712 Elf_Internal_Rela outrel;
5713 bfd_byte *loc;
a6aa5195 5714 asection *got2, *sreloc = NULL;
252b5132 5715 bfd_vma *local_got_offsets;
b34976b6 5716 bfd_boolean ret = TRUE;
4fe5ca5b 5717 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
b34976b6 5718
252b5132 5719#ifdef DEBUG
d003868e
AM		 5720 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
5721 "%ld relocations%s",
5722 input_bfd, input_section,
5723 (long) input_section->reloc_count,
5724 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH		 5725#endif
5726
a6aa5195
AM		 5727 got2 = bfd_get_section_by_name (input_bfd, ".got2");
5728
e47cd125 5729 /* Initialize howto table if not already done. */
8da6118f 5730 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH		 5731 ppc_elf_howto_init ();
5732
7619e7c7 5733 htab = ppc_elf_hash_table (info);
252b5132 5734 local_got_offsets = elf_local_got_offsets (input_bfd);
7619e7c7
AM		 5735 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5736 sym_hashes = elf_sym_hashes (input_bfd);
5737 rel = relocs;
5738 relend = relocs + input_section->reloc_count;
252b5132
RH		 5739 for (; rel < relend; rel++)
5740 {
7619e7c7
AM		 5741 enum elf_ppc_reloc_type r_type;
5742 bfd_vma addend;
5743 bfd_reloc_status_type r;
5744 Elf_Internal_Sym *sym;
5745 asection *sec;
5746 struct elf_link_hash_entry *h;
5747 const char *sym_name;
252b5132
RH		 5748 reloc_howto_type *howto;
5749 unsigned long r_symndx;
5750 bfd_vma relocation;
7619e7c7 5751 bfd_vma branch_bit, insn, from;
7619e7c7
AM		 5752 bfd_boolean unresolved_reloc;
5753 bfd_boolean warned;
5754 unsigned int tls_type, tls_mask, tls_gd;
5755
55fd94b0
AM		 5756 r_type = ELF32_R_TYPE (rel->r_info);
5757 sym = NULL;
5758 sec = NULL;
5759 h = NULL;
7619e7c7
AM		 5760 unresolved_reloc = FALSE;
5761 warned = FALSE;
252b5132 5762 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 5763
252b5132
RH		 5764 if (r_symndx < symtab_hdr->sh_info)
5765 {
5766 sym = local_syms + r_symndx;
5767 sec = local_sections[r_symndx];
26c61ae5 5768 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 5769
8517fae7 5770 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH		 5771 }
5772 else
5773 {
b2a8e766
AM		 5774 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
5775 r_symndx, symtab_hdr, sym_hashes,
5776 h, sec, relocation,
5777 unresolved_reloc, warned);
9abc968f 5778
252b5132 5779 sym_name = h->root.root.string;
7619e7c7
AM		 5780 }
5781
ab96bf03
AM		 5782 if (sec != NULL && elf_discarded_section (sec))
5783 {
5784 /* For relocs against symbols from removed linkonce sections,
5785 or sections discarded by a linker script, we just want the
5786 section contents zeroed. Avoid any special processing. */
5787 howto = NULL;
5788 if (r_type < R_PPC_max)
5789 howto = ppc_elf_howto_table[r_type];
5790 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
5791 rel->r_info = 0;
5792 rel->r_addend = 0;
5793 continue;
5794 }
5795
5796 if (info->relocatable)
5797 {
5798 if (got2 != NULL
5799 && r_type == R_PPC_PLTREL24
5800 && rel->r_addend >= 32768)
5801 {
5802 /* R_PPC_PLTREL24 is rather special. If non-zero, the
5803 addend specifies the GOT pointer offset within .got2. */
5804 rel->r_addend += got2->output_offset;
5805 }
5806 continue;
5807 }
5808
7619e7c7
AM		 5809 /* TLS optimizations. Replace instruction sequences and relocs
5810 based on information we collected in tls_optimize. We edit
5811 RELOCS so that --emit-relocs will output something sensible
5812 for the final instruction stream. */
5813 tls_mask = 0;
5814 tls_gd = 0;
5815 if (IS_PPC_TLS_RELOC (r_type))
5816 {
5817 if (h != NULL)
5818 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
5819 else if (local_got_offsets != NULL)
5820 {
5821 char *lgot_masks;
5822 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
5823 tls_mask = lgot_masks[r_symndx];
5824 }
5825 }
5826
5827 /* Ensure reloc mapping code below stays sane. */
5828 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
5829 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
5830 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
5831 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
5832 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
5833 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
5834 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
5835 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
5836 abort ();
5837 switch (r_type)
5838 {
5839 default:
5840 break;
5841
5842 case R_PPC_GOT_TPREL16:
5843 case R_PPC_GOT_TPREL16_LO:
5844 if (tls_mask != 0
5845 && (tls_mask & TLS_TPREL) == 0)
5846 {
5847 bfd_vma insn;
4fe5ca5b 5848 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM		 5849 insn &= 31 << 21;
5850 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 5851 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM		 5852 r_type = R_PPC_TPREL16_HA;
5853 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5854 }
5855 break;
5856
5857 case R_PPC_TLS:
5858 if (tls_mask != 0
5859 && (tls_mask & TLS_TPREL) == 0)
5860 {
5861 bfd_vma insn, rtra;
5862 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5863 if ((insn & ((31 << 26) | (31 << 11)))
5864 == ((31 << 26) | (2 << 11)))
5865 rtra = insn & ((1 << 26) - (1 << 16));
5866 else if ((insn & ((31 << 26) | (31 << 16)))
5867 == ((31 << 26) | (2 << 16)))
5868 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
5869 else
5870 abort ();
5871 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
5872 /* add -> addi. */
5873 insn = 14 << 26;
5874 else if ((insn & (31 << 1)) == 23 << 1
5875 && ((insn & (31 << 6)) < 14 << 6
5876 || ((insn & (31 << 6)) >= 16 << 6
5877 && (insn & (31 << 6)) < 24 << 6)))
5878 /* load and store indexed -> dform. */
5879 insn = (32 | ((insn >> 6) & 31)) << 26;
5880 else if ((insn & (31 << 1)) == 21 << 1
5881 && (insn & (0x1a << 6)) == 0)
5882 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
5883 insn = (((58 | ((insn >> 6) & 4)) << 26)
5884 | ((insn >> 6) & 1));
5885 else if ((insn & (31 << 1)) == 21 << 1
5886 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
5887 /* lwax -> lwa. */
5888 insn = (58 << 26) | 2;
5889 else
5890 abort ();
5891 insn |= rtra;
5892 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5893 r_type = R_PPC_TPREL16_LO;
5894 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 5895
7619e7c7 5896 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM		 5897 PPC_TPREL16_LO which is at low-order half-word. */
5898 rel->r_offset += d_offset;
7619e7c7
AM		 5899 }
5900 break;
5901
5902 case R_PPC_GOT_TLSGD16_HI:
5903 case R_PPC_GOT_TLSGD16_HA:
5904 tls_gd = TLS_TPRELGD;
5905 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5906 goto tls_gdld_hi;
5907 break;
5908
5909 case R_PPC_GOT_TLSLD16_HI:
5910 case R_PPC_GOT_TLSLD16_HA:
5911 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5912 {
5913 tls_gdld_hi:
5914 if ((tls_mask & tls_gd) != 0)
5915 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5916 + R_PPC_GOT_TPREL16);
5917 else
5918 {
5919 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 5920 rel->r_offset -= d_offset;
7619e7c7
AM		 5921 r_type = R_PPC_NONE;
5922 }
5923 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5924 }
5925 break;
5926
5927 case R_PPC_GOT_TLSGD16:
5928 case R_PPC_GOT_TLSGD16_LO:
5929 tls_gd = TLS_TPRELGD;
5930 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5931 goto tls_get_addr_check;
5932 break;
5933
5934 case R_PPC_GOT_TLSLD16:
5935 case R_PPC_GOT_TLSLD16_LO:
5936 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5937 {
5938 tls_get_addr_check:
5939 if (rel + 1 < relend)
5940 {
5941 enum elf_ppc_reloc_type r_type2;
5942 unsigned long r_symndx2;
5943 struct elf_link_hash_entry *h2;
87d243f1 5944 bfd_vma insn1, insn2;
7619e7c7
AM		 5945 bfd_vma offset;
5946
5947 /* The next instruction should be a call to
5948 __tls_get_addr. Peek at the reloc to be sure. */
55fd94b0 5949 r_type2 = ELF32_R_TYPE (rel[1].r_info);
7619e7c7
AM		 5950 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
5951 if (r_symndx2 < symtab_hdr->sh_info
5952 || (r_type2 != R_PPC_REL14
5953 && r_type2 != R_PPC_REL14_BRTAKEN
5954 && r_type2 != R_PPC_REL14_BRNTAKEN
5955 && r_type2 != R_PPC_REL24
5956 && r_type2 != R_PPC_PLTREL24))
5957 break;
5958
5959 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
5960 while (h2->root.type == bfd_link_hash_indirect
5961 || h2->root.type == bfd_link_hash_warning)
5962 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
5963 if (h2 == NULL || h2 != htab->tls_get_addr)
5964 break;
5965
5966 /* OK, it checks out. Replace the call. */
5967 offset = rel[1].r_offset;
5968 insn1 = bfd_get_32 (output_bfd,
4fe5ca5b 5969 contents + rel->r_offset - d_offset);
7619e7c7
AM		 5970 if ((tls_mask & tls_gd) != 0)
5971 {
5972 /* IE */
5973 insn1 &= (1 << 26) - 1;
5974 insn1 |= 32 << 26; /* lwz */
5975 insn2 = 0x7c631214; /* add 3,3,2 */
5976 rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE);
e1710606 5977 rel[1].r_addend = 0;
7619e7c7
AM		 5978 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5979 + R_PPC_GOT_TPREL16);
5980 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5981 }
5982 else
5983 {
5984 /* LE */
5985 insn1 = 0x3c620000; /* addis 3,2,0 */
5986 insn2 = 0x38630000; /* addi 3,3,0 */
5987 if (tls_gd == 0)
5988 {
5989 /* Was an LD reloc. */
5990 r_symndx = 0;
e1918d23 5991 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 5992 }
5993 r_type = R_PPC_TPREL16_HA;
5994 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5995 rel[1].r_info = ELF32_R_INFO (r_symndx,
5996 R_PPC_TPREL16_LO);
4fe5ca5b 5997 rel[1].r_offset += d_offset;
e1710606 5998 rel[1].r_addend = rel->r_addend;
7619e7c7 5999 }
4fe5ca5b 6000 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - d_offset);
7619e7c7 6001 bfd_put_32 (output_bfd, insn2, contents + offset);
7619e7c7
AM		 6002 if (tls_gd == 0)
6003 {
6004 /* We changed the symbol on an LD reloc. Start over
70bccea4 6005 in order to get h, sym, sec etc. right. */
7619e7c7
AM		 6006 rel--;
6007 continue;
6008 }
6009 }
252b5132 6010 }
7619e7c7
AM		 6011 break;
6012 }
6013
6014 /* Handle other relocations that tweak non-addend part of insn. */
6015 branch_bit = 0;
6016 switch (r_type)
6017 {
6018 default:
6019 break;
6020
6021 /* Branch taken prediction relocations. */
6022 case R_PPC_ADDR14_BRTAKEN:
6023 case R_PPC_REL14_BRTAKEN:
6024 branch_bit = BRANCH_PREDICT_BIT;
6025 /* Fall thru */
6026
4cc11e76 6027 /* Branch not taken prediction relocations. */
7619e7c7
AM		 6028 case R_PPC_ADDR14_BRNTAKEN:
6029 case R_PPC_REL14_BRNTAKEN:
6030 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
6031 insn &= ~BRANCH_PREDICT_BIT;
6032 insn |= branch_bit;
6033
6034 from = (rel->r_offset
6035 + input_section->output_offset
6036 + input_section->output_section->vma);
6037
6038 /* Invert 'y' bit if not the default. */
6039 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
6040 insn ^= BRANCH_PREDICT_BIT;
6041
6042 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6043 break;
252b5132
RH		 6044 }
6045
7619e7c7
AM		 6046 addend = rel->r_addend;
6047 tls_type = 0;
6048 howto = NULL;
55fd94b0
AM		 6049 if (r_type < R_PPC_max)
6050 howto = ppc_elf_howto_table[r_type];
7619e7c7 6051 switch (r_type)
252b5132
RH		 6052 {
6053 default:
7619e7c7 6054 (*_bfd_error_handler)
d003868e
AM		 6055 (_("%B: unknown relocation type %d for symbol %s"),
6056 input_bfd, (int) r_type, sym_name);
252b5132
RH		 6057
6058 bfd_set_error (bfd_error_bad_value);
b34976b6 6059 ret = FALSE;
252b5132
RH		 6060 continue;
6061
7619e7c7
AM		 6062 case R_PPC_NONE:
6063 case R_PPC_TLS:
6064 case R_PPC_EMB_MRKREF:
6065 case R_PPC_GNU_VTINHERIT:
6066 case R_PPC_GNU_VTENTRY:
7595d193
L		 6067 continue;
6068
7619e7c7
AM		 6069 /* GOT16 relocations. Like an ADDR16 using the symbol's
6070 address in the GOT as relocation value instead of the
6071 symbol's value itself. Also, create a GOT entry for the
6072 symbol and put the symbol value there. */
6073 case R_PPC_GOT_TLSGD16:
6074 case R_PPC_GOT_TLSGD16_LO:
6075 case R_PPC_GOT_TLSGD16_HI:
6076 case R_PPC_GOT_TLSGD16_HA:
6077 tls_type = TLS_TLS | TLS_GD;
6078 goto dogot;
6079
6080 case R_PPC_GOT_TLSLD16:
6081 case R_PPC_GOT_TLSLD16_LO:
6082 case R_PPC_GOT_TLSLD16_HI:
6083 case R_PPC_GOT_TLSLD16_HA:
6084 tls_type = TLS_TLS | TLS_LD;
6085 goto dogot;
6086
6087 case R_PPC_GOT_TPREL16:
6088 case R_PPC_GOT_TPREL16_LO:
6089 case R_PPC_GOT_TPREL16_HI:
6090 case R_PPC_GOT_TPREL16_HA:
6091 tls_type = TLS_TLS | TLS_TPREL;
6092 goto dogot;
6093
6094 case R_PPC_GOT_DTPREL16:
6095 case R_PPC_GOT_DTPREL16_LO:
6096 case R_PPC_GOT_DTPREL16_HI:
6097 case R_PPC_GOT_DTPREL16_HA:
6098 tls_type = TLS_TLS | TLS_DTPREL;
6099 goto dogot;
6100
6101 case R_PPC_GOT16:
6102 case R_PPC_GOT16_LO:
6103 case R_PPC_GOT16_HI:
6104 case R_PPC_GOT16_HA:
6105 dogot:
6106 {
6107 /* Relocation is to the entry for this symbol in the global
6108 offset table. */
6109 bfd_vma off;
6110 bfd_vma *offp;
6111 unsigned long indx;
6112
6113 if (htab->got == NULL)
6114 abort ();
6115
6116 indx = 0;
6117 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 6118 && (h == NULL
f5385ebf 6119 || !h->def_dynamic))
7619e7c7
AM		 6120 offp = &htab->tlsld_got.offset;
6121 else if (h != NULL)
6122 {
6123 bfd_boolean dyn;
6124 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 6125 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM		 6126 || (info->shared
6127 && SYMBOL_REFERENCES_LOCAL (info, h)))
6128 /* This is actually a static link, or it is a
6129 -Bsymbolic link and the symbol is defined
6130 locally, or the symbol was forced to be local
6131 because of a version file. */
6132 ;
6133 else
6134 {
6135 indx = h->dynindx;
6136 unresolved_reloc = FALSE;
6137 }
6138 offp = &h->got.offset;
6139 }
6140 else
6141 {
6142 if (local_got_offsets == NULL)
6143 abort ();
6144 offp = &local_got_offsets[r_symndx];
6145 }
6146
6147 /* The offset must always be a multiple of 4. We use the
6148 least significant bit to record whether we have already
6149 processed this entry. */
6150 off = *offp;
6151 if ((off & 1) != 0)
6152 off &= ~1;
6153 else
6154 {
70bccea4
AM		 6155 unsigned int tls_m = (tls_mask
6156 & (TLS_LD | TLS_GD | TLS_DTPREL
6157 | TLS_TPREL | TLS_TPRELGD));
6158
6159 if (offp == &htab->tlsld_got.offset)
6160 tls_m = TLS_LD;
6161 else if (h == NULL
f5385ebf 6162 || !h->def_dynamic)
70bccea4
AM		 6163 tls_m &= ~TLS_LD;
6164
6165 /* We might have multiple got entries for this sym.
6166 Initialize them all. */
6167 do
7619e7c7 6168 {
70bccea4
AM		 6169 int tls_ty = 0;
6170
6171 if ((tls_m & TLS_LD) != 0)
7619e7c7 6172 {
70bccea4
AM		 6173 tls_ty = TLS_TLS | TLS_LD;
6174 tls_m &= ~TLS_LD;
6175 }
6176 else if ((tls_m & TLS_GD) != 0)
6177 {
6178 tls_ty = TLS_TLS | TLS_GD;
6179 tls_m &= ~TLS_GD;
6180 }
6181 else if ((tls_m & TLS_DTPREL) != 0)
6182 {
6183 tls_ty = TLS_TLS | TLS_DTPREL;
6184 tls_m &= ~TLS_DTPREL;
6185 }
6186 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
6187 {
6188 tls_ty = TLS_TLS | TLS_TPREL;
6189 tls_m = 0;
7619e7c7 6190 }
7619e7c7 6191
70bccea4 6192 /* Generate relocs for the dynamic linker. */
4e795f50
AM		 6193 if ((info->shared || indx != 0)
6194 && (h == NULL
6195 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6196 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 6197 {
70bccea4
AM		 6198 outrel.r_offset = (htab->got->output_section->vma
6199 + htab->got->output_offset
6200 + off);
e515b051 6201 outrel.r_addend = 0;
70bccea4
AM		 6202 if (tls_ty & (TLS_LD | TLS_GD))
6203 {
6204 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM		 6205 if (tls_ty == (TLS_TLS | TLS_GD))
6206 {
6207 loc = htab->relgot->contents;
6208 loc += (htab->relgot->reloc_count++
6209 * sizeof (Elf32_External_Rela));
6210 bfd_elf32_swap_reloca_out (output_bfd,
6211 &outrel, loc);
e515b051 6212 outrel.r_offset += 4;
70bccea4
AM		 6213 outrel.r_info
6214 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM		 6215 }
6216 }
6217 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6218 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6219 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6220 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6221 else if (indx == 0)
6222 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6223 else
6224 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
70bccea4 6225 if (indx == 0)
e515b051
AM		 6226 {
6227 outrel.r_addend += relocation;
6228 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 6229 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 6230 }
70bccea4
AM		 6231 loc = htab->relgot->contents;
6232 loc += (htab->relgot->reloc_count++
6233 * sizeof (Elf32_External_Rela));
6234 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM		 6235 }
6236
70bccea4
AM		 6237 /* Init the .got section contents if we're not
6238 emitting a reloc. */
6239 else
7619e7c7 6240 {
70bccea4
AM		 6241 bfd_vma value = relocation;
6242
7b609f53
AM		 6243 if (tls_ty == (TLS_TLS | TLS_LD))
6244 value = 1;
6245 else if (tls_ty != 0)
70bccea4 6246 {
e1918d23 6247 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 6248 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 6249 value += DTP_OFFSET - TP_OFFSET;
70bccea4 6250
7b609f53
AM		 6251 if (tls_ty == (TLS_TLS | TLS_GD))
6252 {
6253 bfd_put_32 (output_bfd, value,
6254 htab->got->contents + off + 4);
6255 value = 1;
6256 }
70bccea4 6257 }
70bccea4
AM		 6258 bfd_put_32 (output_bfd, value,
6259 htab->got->contents + off);
7619e7c7 6260 }
70bccea4
AM		 6261
6262 off += 4;
6263 if (tls_ty & (TLS_LD | TLS_GD))
6264 off += 4;
7619e7c7 6265 }
70bccea4
AM		 6266 while (tls_m != 0);
6267
6268 off = *offp;
6269 *offp = off | 1;
7619e7c7
AM		 6270 }
6271
6272 if (off >= (bfd_vma) -2)
6273 abort ();
6274
70bccea4
AM		 6275 if ((tls_type & TLS_TLS) != 0)
6276 {
6277 if (tls_type != (TLS_TLS | TLS_LD))
6278 {
6279 if ((tls_mask & TLS_LD) != 0
6280 && !(h == NULL
f5385ebf 6281 || !h->def_dynamic))
70bccea4
AM		 6282 off += 8;
6283 if (tls_type != (TLS_TLS | TLS_GD))
6284 {
6285 if ((tls_mask & TLS_GD) != 0)
6286 off += 8;
6287 if (tls_type != (TLS_TLS | TLS_DTPREL))
6288 {
6289 if ((tls_mask & TLS_DTPREL) != 0)
6290 off += 4;
6291 }
6292 }
6293 }
6294 }
6295
3b36f7e6
AM		 6296 relocation = htab->got->output_offset + off;
6297 relocation -= htab->elf.hgot->root.u.def.value;
7619e7c7
AM		 6298
6299 /* Addends on got relocations don't make much sense.
6300 x+off@got is actually x@got+off, and since the got is
6301 generated by a hash table traversal, the value in the
6302 got at entry m+n bears little relation to the entry m. */
6303 if (addend != 0)
6304 (*_bfd_error_handler)
d003868e
AM		 6305 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6306 input_bfd,
6307 input_section,
7619e7c7 6308 (long) rel->r_offset,
7b609f53 6309 howto->name,
7619e7c7
AM		 6310 sym_name);
6311 }
70bccea4 6312 break;
7619e7c7 6313
252b5132 6314 /* Relocations that need no special processing. */
7619e7c7 6315 case R_PPC_LOCAL24PC:
252b5132
RH		 6316 /* It makes no sense to point a local relocation
6317 at a symbol not in this object. */
7b609f53 6318 if (unresolved_reloc)
252b5132 6319 {
464e1740
ILT		 6320 if (! (*info->callbacks->undefined_symbol) (info,
6321 h->root.root.string,
6322 input_bfd,
6323 input_section,
5cc7c785 6324 rel->r_offset,
b34976b6
AM		 6325 TRUE))
6326 return FALSE;
252b5132
RH		 6327 continue;
6328 }
6329 break;
6330
7619e7c7
AM		 6331 case R_PPC_DTPREL16:
6332 case R_PPC_DTPREL16_LO:
6333 case R_PPC_DTPREL16_HI:
6334 case R_PPC_DTPREL16_HA:
e1918d23 6335 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6336 break;
6337
70bccea4
AM		 6338 /* Relocations that may need to be propagated if this is a shared
6339 object. */
7619e7c7
AM		 6340 case R_PPC_TPREL16:
6341 case R_PPC_TPREL16_LO:
6342 case R_PPC_TPREL16_HI:
6343 case R_PPC_TPREL16_HA:
e1918d23 6344 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6345 /* The TPREL16 relocs shouldn't really be used in shared
6346 libs as they will result in DT_TEXTREL being set, but
6347 support them anyway. */
6348 goto dodyn;
6349
6350 case R_PPC_TPREL32:
e1918d23 6351 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6352 goto dodyn;
6353
6354 case R_PPC_DTPREL32:
e1918d23 6355 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6356 goto dodyn;
6357
e515b051
AM		 6358 case R_PPC_DTPMOD32:
6359 relocation = 1;
6360 addend = 0;
6361 goto dodyn;
6362
d7128ce4
AM		 6363 case R_PPC_REL16:
6364 case R_PPC_REL16_LO:
6365 case R_PPC_REL16_HI:
6366 case R_PPC_REL16_HA:
6367 break;
6368
7619e7c7
AM		 6369 case R_PPC_REL24:
6370 case R_PPC_REL32:
6371 case R_PPC_REL14:
6372 case R_PPC_REL14_BRTAKEN:
6373 case R_PPC_REL14_BRNTAKEN:
252b5132
RH		 6374 /* If these relocations are not to a named symbol, they can be
6375 handled right here, no need to bother the dynamic linker. */
f6c52c13 6376 if (SYMBOL_REFERENCES_LOCAL (info, h)
3b36f7e6 6377 || h == htab->elf.hgot)
252b5132 6378 break;
70bccea4 6379 /* fall through */
252b5132 6380
70bccea4
AM		 6381 /* Relocations that always need to be propagated if this is a shared
6382 object. */
7619e7c7
AM		 6383 case R_PPC_ADDR32:
6384 case R_PPC_ADDR24:
6385 case R_PPC_ADDR16:
6386 case R_PPC_ADDR16_LO:
6387 case R_PPC_ADDR16_HI:
6388 case R_PPC_ADDR16_HA:
6389 case R_PPC_ADDR14:
6390 case R_PPC_ADDR14_BRTAKEN:
6391 case R_PPC_ADDR14_BRNTAKEN:
6392 case R_PPC_UADDR32:
6393 case R_PPC_UADDR16:
7619e7c7 6394 dodyn:
c87b5a93
AM		 6395 if ((input_section->flags & SEC_ALLOC) == 0)
6396 break;
6397 /* Fall thru. */
6398
ee05f2fe 6399 if ((info->shared
4e795f50
AM		 6400 && (h == NULL
6401 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6402 || h->root.type != bfd_link_hash_undefweak)
ee05f2fe 6403 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 6404 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM		 6405 || (ELIMINATE_COPY_RELOCS
6406 && !info->shared
ee05f2fe
AM		 6407 && h != NULL
6408 && h->dynindx != -1
f5385ebf
AM		 6409 && !h->non_got_ref
6410 && h->def_dynamic
6411 && !h->def_regular))
252b5132 6412 {
0bb2d96a 6413 int skip;
252b5132
RH		 6414
6415#ifdef DEBUG
55fd94b0
AM		 6416 fprintf (stderr, "ppc_elf_relocate_section needs to "
6417 "create relocation for %s\n",
70bccea4
AM		 6418 (h && h->root.root.string
6419 ? h->root.root.string : "<unknown>"));
252b5132
RH		 6420#endif
6421
6422 /* When generating a shared object, these relocations
70bccea4
AM		 6423 are copied into the output file to be resolved at run
6424 time. */
252b5132
RH		 6425 if (sreloc == NULL)
6426 {
6427 const char *name;
6428
6429 name = (bfd_elf_string_from_elf_section
6430 (input_bfd,
6431 elf_elfheader (input_bfd)->e_shstrndx,
6432 elf_section_data (input_section)->rel_hdr.sh_name));
6433 if (name == NULL)
b34976b6 6434 return FALSE;
252b5132 6435
0112cd26 6436 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
252b5132
RH		 6437 && strcmp (bfd_get_section_name (input_bfd,
6438 input_section),
6439 name + 5) == 0);
6440
7619e7c7 6441 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
252b5132
RH		 6442 BFD_ASSERT (sreloc != NULL);
6443 }
6444
0bb2d96a 6445 skip = 0;
252b5132 6446
c629eae0
JJ		 6447 outrel.r_offset =
6448 _bfd_elf_section_offset (output_bfd, info, input_section,
6449 rel->r_offset);
0bb2d96a
JJ		 6450 if (outrel.r_offset == (bfd_vma) -1
6451 || outrel.r_offset == (bfd_vma) -2)
6452 skip = (int) outrel.r_offset;
252b5132
RH		 6453 outrel.r_offset += (input_section->output_section->vma
6454 + input_section->output_offset);
6455
6456 if (skip)
6457 memset (&outrel, 0, sizeof outrel);
f6c52c13 6458 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 6459 {
7619e7c7 6460 unresolved_reloc = FALSE;
252b5132
RH		 6461 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6462 outrel.r_addend = rel->r_addend;
6463 }
6464 else
6465 {
47388f4c
AM		 6466 outrel.r_addend = relocation + rel->r_addend;
6467
252b5132 6468 if (r_type == R_PPC_ADDR32)
47388f4c 6469 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH		 6470 else
6471 {
6472 long indx;
6473
47388f4c 6474 if (bfd_is_abs_section (sec))
252b5132
RH		 6475 indx = 0;
6476 else if (sec == NULL || sec->owner == NULL)
6477 {
6478 bfd_set_error (bfd_error_bad_value);
b34976b6 6479 return FALSE;
252b5132
RH		 6480 }
6481 else
6482 {
6483 asection *osec;
6484
47388f4c
AM		 6485 /* We are turning this relocation into one
6486 against a section symbol. It would be
6487 proper to subtract the symbol's value,
6488 osec->vma, from the emitted reloc addend,
6489 but ld.so expects buggy relocs. */
252b5132
RH		 6490 osec = sec->output_section;
6491 indx = elf_section_data (osec)->dynindx;
74541ad4
AM		 6492 if (indx == 0)
6493 {
6494 osec = htab->elf.text_index_section;
6495 indx = elf_section_data (osec)->dynindx;
6496 }
6497 BFD_ASSERT (indx != 0);
252b5132 6498#ifdef DEBUG
74541ad4 6499 if (indx == 0)
e460dd0d 6500 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM		 6501 indx, osec->name, osec->flags,
6502 h->root.root.string);
252b5132
RH		 6503#endif
6504 }
6505
6506 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH		 6507 }
6508 }
6509
947216bf
AM		 6510 loc = sreloc->contents;
6511 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6512 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 6513
2243deae 6514 if (skip == -1)
252b5132 6515 continue;
2243deae
L		 6516
6517 /* This reloc will be computed at runtime. We clear the memory
6518 so that it contains predictable value. */
6519 if (! skip
6520 && ((input_section->flags & SEC_ALLOC) != 0
6521 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6522 {
6523 relocation = howto->pc_relative ? outrel.r_offset : 0;
6524 addend = 0;
6525 break;
6526 }
252b5132 6527 }
252b5132
RH		 6528 break;
6529
b4a38de6
AM		 6530 case R_PPC_RELAX32PC_PLT:
6531 case R_PPC_RELAX32_PLT:
a6aa5195
AM		 6532 {
6533 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6534
4a3dc543 6535 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6536 relocation = (htab->glink->output_section->vma
6537 + htab->glink->output_offset
6538 + ent->glink_offset);
6539 else
6540 relocation = (htab->plt->output_section->vma
6541 + htab->plt->output_offset
6542 + ent->plt.offset);
6543 addend = 0;
6544 }
b4a38de6
AM		 6545 if (r_type == R_PPC_RELAX32_PLT)
6546 goto relax32;
6547 /* Fall thru */
6548
f31a141e
AM		 6549 case R_PPC_RELAX32PC:
6550 relocation -= (input_section->output_section->vma
6551 + input_section->output_offset
6552 + rel->r_offset - 4);
6553 /* Fall thru */
b4a38de6 6554
deaaf2f3 6555 case R_PPC_RELAX32:
b4a38de6 6556 relax32:
9abc968f
AM		 6557 {
6558 unsigned long t0;
6559 unsigned long t1;
6560
6561 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6562 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6563
6564 /* We're clearing the bits for R_PPC_ADDR16_HA
6565 and R_PPC_ADDR16_LO here. */
6566 t0 &= ~0xffff;
6567 t1 &= ~0xffff;
6568
6569 /* t0 is HA, t1 is LO */
6570 relocation += addend;
6571 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6572 t1 |= relocation & 0xffff;
6573
6574 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6575 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6576 }
8517fae7 6577 continue;
deaaf2f3 6578
70bccea4 6579 /* Indirect .sdata relocation. */
7619e7c7 6580 case R_PPC_EMB_SDAI16:
c9a2f333 6581 BFD_ASSERT (htab->sdata[0].section != NULL);
7619e7c7 6582 relocation
76750a2f
AM		 6583 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6584 h, relocation, rel);
252b5132
RH		 6585 break;
6586
70bccea4 6587 /* Indirect .sdata2 relocation. */
7619e7c7 6588 case R_PPC_EMB_SDA2I16:
c9a2f333 6589 BFD_ASSERT (htab->sdata[1].section != NULL);
7619e7c7 6590 relocation
76750a2f
AM		 6591 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6592 h, relocation, rel);
252b5132
RH		 6593 break;
6594
70bccea4
AM		 6595 /* Handle the TOC16 reloc. We want to use the offset within the .got
6596 section, not the actual VMA. This is appropriate when generating
6597 an embedded ELF object, for which the .got section acts like the
6598 AIX .toc section. */
7619e7c7 6599 case R_PPC_TOC16: /* phony GOT16 relocations */
55fd94b0 6600 BFD_ASSERT (sec != NULL);
252b5132
RH		 6601 BFD_ASSERT (bfd_is_und_section (sec)
6602 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 6603 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 6604
70bccea4 6605 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH		 6606 break;
6607
7619e7c7 6608 case R_PPC_PLTREL24:
252b5132 6609 /* Relocation is to the entry for this symbol in the
70bccea4 6610 procedure linkage table. */
a6aa5195
AM		 6611 {
6612 struct plt_entry *ent = find_plt_ent (h, got2, addend);
252b5132 6613
a6aa5195
AM		 6614 addend = 0;
6615 if (ent == NULL
6616 || htab->plt == NULL)
6617 {
6618 /* We didn't make a PLT entry for this symbol. This
6619 happens when statically linking PIC code, or when
6620 using -Bsymbolic. */
6621 break;
6622 }
252b5132 6623
a6aa5195 6624 unresolved_reloc = FALSE;
4a3dc543 6625 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6626 relocation = (htab->glink->output_section->vma
6627 + htab->glink->output_offset
6628 + ent->glink_offset);
6629 else
6630 relocation = (htab->plt->output_section->vma
6631 + htab->plt->output_offset
6632 + ent->plt.offset);
6633 }
8da6118f 6634 break;
252b5132 6635
70bccea4 6636 /* Relocate against _SDA_BASE_. */
7619e7c7 6637 case R_PPC_SDAREL16:
252b5132
RH		 6638 {
6639 const char *name;
046183de 6640 struct elf_link_hash_entry *sh;
252b5132 6641
55fd94b0 6642 BFD_ASSERT (sec != NULL);
252b5132 6643 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 6644 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 6645 && (name[6] == 0 || name[6] == '.'))
0112cd26 6646 || (CONST_STRNEQ (name, ".sbss")
5f819128 6647 && (name[5] == 0 || name[5] == '.'))))
252b5132 6648 {
55fd94b0 6649 (*_bfd_error_handler)
d003868e 6650 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6651 "in the wrong output section (%s)"),
d003868e 6652 input_bfd,
55fd94b0
AM		 6653 sym_name,
6654 howto->name,
6655 name);
252b5132 6656 }
046183de
AM		 6657 sh = htab->sdata[0].sym;
6658 addend -= (sh->root.u.def.value
6659 + sh->root.u.def.section->output_offset
6660 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6661 }
6662 break;
6663
70bccea4 6664 /* Relocate against _SDA2_BASE_. */
7619e7c7 6665 case R_PPC_EMB_SDA2REL:
252b5132
RH		 6666 {
6667 const char *name;
046183de 6668 struct elf_link_hash_entry *sh;
252b5132 6669
55fd94b0 6670 BFD_ASSERT (sec != NULL);
252b5132 6671 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26
NC		 6672 if (! (CONST_STRNEQ (name, ".sdata2")
6673 || CONST_STRNEQ (name, ".sbss2")))
252b5132 6674 {
55fd94b0 6675 (*_bfd_error_handler)
d003868e 6676 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6677 "in the wrong output section (%s)"),
d003868e 6678 input_bfd,
55fd94b0
AM		 6679 sym_name,
6680 howto->name,
6681 name);
c3668558 6682
252b5132 6683 bfd_set_error (bfd_error_bad_value);
b34976b6 6684 ret = FALSE;
252b5132
RH		 6685 continue;
6686 }
046183de
AM		 6687 sh = htab->sdata[1].sym;
6688 addend -= (sh->root.u.def.value
6689 + sh->root.u.def.section->output_offset
6690 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6691 }
6692 break;
6693
70bccea4 6694 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM		 6695 case R_PPC_EMB_SDA21:
6696 case R_PPC_EMB_RELSDA:
252b5132
RH		 6697 {
6698 const char *name;
6699 int reg;
046183de 6700 struct elf_link_hash_entry *sh;
252b5132 6701
55fd94b0 6702 BFD_ASSERT (sec != NULL);
252b5132 6703 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 6704 if (((CONST_STRNEQ (name, ".sdata")
5f819128 6705 && (name[6] == 0 || name[6] == '.'))
0112cd26 6706 || (CONST_STRNEQ (name, ".sbss")
5f819128 6707 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH		 6708 {
6709 reg = 13;
046183de
AM		 6710 sh = htab->sdata[0].sym;
6711 addend -= (sh->root.u.def.value
6712 + sh->root.u.def.section->output_offset
6713 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6714 }
6715
0112cd26
NC		 6716 else if (CONST_STRNEQ (name, ".sdata2")
6717 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH		 6718 {
6719 reg = 2;
046183de
AM		 6720 sh = htab->sdata[1].sym;
6721 addend -= (sh->root.u.def.value
6722 + sh->root.u.def.section->output_offset
6723 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6724 }
6725
8da6118f
KH		 6726 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
6727 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH		 6728 {
6729 reg = 0;
6730 }
6731
6732 else
6733 {
55fd94b0 6734 (*_bfd_error_handler)
d003868e 6735 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6736 "in the wrong output section (%s)"),
d003868e 6737 input_bfd,
55fd94b0
AM		 6738 sym_name,
6739 howto->name,
6740 name);
252b5132
RH		 6741
6742 bfd_set_error (bfd_error_bad_value);
b34976b6 6743 ret = FALSE;
252b5132
RH		 6744 continue;
6745 }
6746
6747 if (r_type == R_PPC_EMB_SDA21)
6748 { /* fill in register field */
7619e7c7 6749 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 6750 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 6751 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH		 6752 }
6753 }
6754 break;
6755
70bccea4 6756 /* Relocate against the beginning of the section. */
7619e7c7
AM		 6757 case R_PPC_SECTOFF:
6758 case R_PPC_SECTOFF_LO:
6759 case R_PPC_SECTOFF_HI:
6760 case R_PPC_SECTOFF_HA:
55fd94b0 6761 BFD_ASSERT (sec != NULL);
252b5132 6762 addend -= sec->output_section->vma;
252b5132
RH		 6763 break;
6764
70bccea4 6765 /* Negative relocations. */
7619e7c7
AM		 6766 case R_PPC_EMB_NADDR32:
6767 case R_PPC_EMB_NADDR16:
6768 case R_PPC_EMB_NADDR16_LO:
6769 case R_PPC_EMB_NADDR16_HI:
6770 case R_PPC_EMB_NADDR16_HA:
8da6118f 6771 addend -= 2 * relocation;
252b5132
RH		 6772 break;
6773
7619e7c7
AM		 6774 case R_PPC_COPY:
6775 case R_PPC_GLOB_DAT:
6776 case R_PPC_JMP_SLOT:
6777 case R_PPC_RELATIVE:
6778 case R_PPC_PLT32:
6779 case R_PPC_PLTREL32:
6780 case R_PPC_PLT16_LO:
6781 case R_PPC_PLT16_HI:
6782 case R_PPC_PLT16_HA:
6783 case R_PPC_ADDR30:
6784 case R_PPC_EMB_RELSEC16:
6785 case R_PPC_EMB_RELST_LO:
6786 case R_PPC_EMB_RELST_HI:
6787 case R_PPC_EMB_RELST_HA:
6788 case R_PPC_EMB_BIT_FLD:
6789 (*_bfd_error_handler)
d003868e
AM		 6790 (_("%B: relocation %s is not yet supported for symbol %s."),
6791 input_bfd,
7619e7c7
AM		 6792 howto->name,
6793 sym_name);
252b5132
RH		 6794
6795 bfd_set_error (bfd_error_invalid_operation);
b34976b6 6796 ret = FALSE;
252b5132 6797 continue;
7619e7c7 6798 }
252b5132 6799
7619e7c7
AM		 6800 /* Do any further special processing. */
6801 switch (r_type)
6802 {
6803 default:
6804 break;
6805
6806 case R_PPC_ADDR16_HA:
d7128ce4 6807 case R_PPC_REL16_HA:
7619e7c7
AM		 6808 case R_PPC_SECTOFF_HA:
6809 case R_PPC_TPREL16_HA:
6810 case R_PPC_DTPREL16_HA:
7619e7c7
AM		 6811 case R_PPC_EMB_NADDR16_HA:
6812 case R_PPC_EMB_RELST_HA:
6813 /* It's just possible that this symbol is a weak symbol
7b609f53 6814 that's not actually defined anywhere. In that case,
7619e7c7
AM		 6815 'sec' would be NULL, and we should leave the symbol
6816 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 6817 if (sec == NULL)
6818 break;
6819 /* Fall thru */
6820
6821 case R_PPC_PLT16_HA:
6822 case R_PPC_GOT16_HA:
6823 case R_PPC_GOT_TLSGD16_HA:
6824 case R_PPC_GOT_TLSLD16_HA:
6825 case R_PPC_GOT_TPREL16_HA:
6826 case R_PPC_GOT_DTPREL16_HA:
6827 /* Add 0x10000 if sign bit in 0:15 is set.
6828 Bits 0:15 are not used. */
6829 addend += 0x8000;
7619e7c7 6830 break;
252b5132
RH		 6831 }
6832
252b5132 6833#ifdef DEBUG
55fd94b0
AM		 6834 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
6835 "offset = %ld, addend = %ld\n",
252b5132 6836 howto->name,
8da6118f 6837 (int) r_type,
252b5132
RH		 6838 sym_name,
6839 r_symndx,
7619e7c7 6840 (long) rel->r_offset,
8da6118f 6841 (long) addend);
252b5132
RH		 6842#endif
6843
7619e7c7
AM		 6844 if (unresolved_reloc
6845 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 6846 && h->def_dynamic))
7619e7c7
AM		 6847 {
6848 (*_bfd_error_handler)
d003868e
AM		 6849 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
6850 input_bfd,
6851 input_section,
7619e7c7 6852 (long) rel->r_offset,
7b609f53 6853 howto->name,
7619e7c7
AM		 6854 sym_name);
6855 ret = FALSE;
6856 }
6857
252b5132
RH		 6858 r = _bfd_final_link_relocate (howto,
6859 input_bfd,
6860 input_section,
6861 contents,
7619e7c7 6862 rel->r_offset,
252b5132
RH		 6863 relocation,
6864 addend);
6865
7619e7c7 6866 if (r != bfd_reloc_ok)
252b5132 6867 {
7619e7c7 6868 if (r == bfd_reloc_overflow)
252b5132 6869 {
7619e7c7
AM		 6870 if (warned)
6871 continue;
6872 if (h != NULL
6873 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH		 6874 && howto->pc_relative)
6875 {
6876 /* Assume this is a call protected by other code that
6877 detect the symbol is undefined. If this is the case,
6878 we can safely ignore the overflow. If not, the
6879 program is hosed anyway, and a little warning isn't
6880 going to help. */
252b5132 6881
dc1bc0c9
RH		 6882 continue;
6883 }
252b5132 6884
7619e7c7 6885 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 6886 (h ? &h->root : NULL),
7619e7c7
AM		 6887 sym_name,
6888 howto->name,
6889 rel->r_addend,
6890 input_bfd,
6891 input_section,
6892 rel->r_offset))
6893 return FALSE;
dc1bc0c9
RH		 6894 }
6895 else
6896 {
7619e7c7 6897 (*_bfd_error_handler)
d003868e
AM		 6898 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
6899 input_bfd, input_section,
7b609f53 6900 (long) rel->r_offset, howto->name, sym_name, (int) r);
7619e7c7 6901 ret = FALSE;
252b5132
RH		 6902 }
6903 }
6904 }
6905
252b5132
RH		 6906#ifdef DEBUG
6907 fprintf (stderr, "\n");
6908#endif
6909
6910 return ret;
6911}
252b5132 6912\f
a6aa5195
AM		 6913#define PPC_LO(v) ((v) & 0xffff)
6914#define PPC_HI(v) (((v) >> 16) & 0xffff)
6915#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6916
25dbc73a
AM		 6917/* Finish up dynamic symbol handling. We set the contents of various
6918 dynamic sections here. */
c5fccbec 6919
b34976b6 6920static bfd_boolean
25dbc73a
AM		 6921ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
6922 struct bfd_link_info *info,
6923 struct elf_link_hash_entry *h,
6924 Elf_Internal_Sym *sym)
e1a9cb8e 6925{
25dbc73a 6926 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM		 6927 struct plt_entry *ent;
6928 bfd_boolean doneone;
e1a9cb8e 6929
25dbc73a
AM		 6930#ifdef DEBUG
6931 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
6932 h->root.root.string);
6933#endif
e1a9cb8e 6934
25dbc73a
AM		 6935 htab = ppc_elf_hash_table (info);
6936 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 6937
a6aa5195
AM		 6938 doneone = FALSE;
6939 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6940 if (ent->plt.offset != (bfd_vma) -1)
6941 {
6942 if (!doneone)
6943 {
6944 Elf_Internal_Rela rela;
6945 bfd_byte *loc;
6946 bfd_vma reloc_index;
e1a9cb8e 6947
4a3dc543 6948 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 6949 reloc_index = ent->plt.offset / 4;
6950 else
6951 {
6952 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
6953 / htab->plt_slot_size);
6954 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 6955 && htab->plt_type == PLT_OLD)
9d8504b1
PB		 6956 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
6957 }
6958
a6aa5195
AM		 6959 /* This symbol has an entry in the procedure linkage table.
6960 Set it up. */
4a3dc543 6961 if (htab->plt_type == PLT_VXWORKS)
a6aa5195 6962 {
9d8504b1
PB		 6963 bfd_vma got_offset;
6964 const bfd_vma *plt_entry;
6965
6966 /* The first three entries in .got.plt are reserved. */
6967 got_offset = (reloc_index + 3) * 4;
6968
6969 /* Use the right PLT. */
6970 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
6971 : ppc_elf_vxworks_plt_entry;
6972
6973 /* Fill in the .plt on VxWorks. */
6974 if (info->shared)
6975 {
6976 bfd_vma got_offset_hi = (got_offset >> 16)
6977 + ((got_offset & 0x8000) >> 15);
6978
6979 bfd_put_32 (output_bfd,
6980 plt_entry[0] | (got_offset_hi & 0xffff),
6981 htab->plt->contents + ent->plt.offset + 0);
6982 bfd_put_32 (output_bfd,
6983 plt_entry[1] | (got_offset & 0xffff),
6984 htab->plt->contents + ent->plt.offset + 4);
6985 }
6986 else
6987 {
636ce3f5
AM		 6988 bfd_vma got_loc
6989 = (got_offset
6990 + htab->elf.hgot->root.u.def.value
6991 + htab->elf.hgot->root.u.def.section->output_offset
6992 + htab->elf.hgot->root.u.def.section->output_section->vma);
9d8504b1
PB		 6993 bfd_vma got_loc_hi = (got_loc >> 16)
6994 + ((got_loc & 0x8000) >> 15);
6995
6996 bfd_put_32 (output_bfd,
6997 plt_entry[0] | (got_loc_hi & 0xffff),
6998 htab->plt->contents + ent->plt.offset + 0);
6999 bfd_put_32 (output_bfd,
7000 plt_entry[1] | (got_loc & 0xffff),
7001 htab->plt->contents + ent->plt.offset + 4);
7002 }
7003
7004 bfd_put_32 (output_bfd, plt_entry[2],
7005 htab->plt->contents + ent->plt.offset + 8);
7006 bfd_put_32 (output_bfd, plt_entry[3],
7007 htab->plt->contents + ent->plt.offset + 12);
7008
7009 /* This instruction is an immediate load. The value loaded is
7010 the byte offset of the R_PPC_JMP_SLOT relocation from the
7011 start of the .rela.plt section. The value is stored in the
7012 low-order 16 bits of the load instruction. */
7013 /* NOTE: It appears that this is now an index rather than a
7014 prescaled offset. */
7015 bfd_put_32 (output_bfd,
7016 plt_entry[4] | reloc_index,
7017 htab->plt->contents + ent->plt.offset + 16);
7018 /* This instruction is a PC-relative branch whose target is
7019 the start of the PLT section. The address of this branch
7020 instruction is 20 bytes beyond the start of this PLT entry.
7021 The address is encoded in bits 6-29, inclusive. The value
7022 stored is right-shifted by two bits, permitting a 26-bit
7023 offset. */
7024 bfd_put_32 (output_bfd,
7025 (plt_entry[5]
7026 | (-(ent->plt.offset + 20) & 0x03fffffc)),
7027 htab->plt->contents + ent->plt.offset + 20);
7028 bfd_put_32 (output_bfd, plt_entry[6],
7029 htab->plt->contents + ent->plt.offset + 24);
7030 bfd_put_32 (output_bfd, plt_entry[7],
7031 htab->plt->contents + ent->plt.offset + 28);
7032
7033 /* Fill in the GOT entry corresponding to this PLT slot with
7034 the address immediately after the the "bctr" instruction
7035 in this PLT entry. */
7036 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
7037 + htab->plt->output_offset
7038 + ent->plt.offset + 16),
7039 htab->sgotplt->contents + got_offset);
7040
7041 if (!info->shared)
7042 {
7043 /* Fill in a couple of entries in .rela.plt.unloaded. */
7044 loc = htab->srelplt2->contents
7045 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
7046 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
7047 * sizeof (Elf32_External_Rela));
7048
7049 /* Provide the @ha relocation for the first instruction. */
7050 rela.r_offset = (htab->plt->output_section->vma
7051 + htab->plt->output_offset
7052 + ent->plt.offset + 2);
636ce3f5 7053 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7054 R_PPC_ADDR16_HA);
7055 rela.r_addend = got_offset;
7056 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7057 loc += sizeof (Elf32_External_Rela);
7058
7059 /* Provide the @l relocation for the second instruction. */
7060 rela.r_offset = (htab->plt->output_section->vma
7061 + htab->plt->output_offset
7062 + ent->plt.offset + 6);
636ce3f5 7063 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 7064 R_PPC_ADDR16_LO);
7065 rela.r_addend = got_offset;
7066 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7067 loc += sizeof (Elf32_External_Rela);
7068
7069 /* Provide a relocation for the GOT entry corresponding to this
7070 PLT slot. Point it at the middle of the .plt entry. */
7071 rela.r_offset = (htab->sgotplt->output_section->vma
7072 + htab->sgotplt->output_offset
7073 + got_offset);
7325306f 7074 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB		 7075 R_PPC_ADDR32);
7076 rela.r_addend = ent->plt.offset + 16;
7077 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7078 }
7079
7080 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
7081 In particular, the offset for the relocation is not the
7082 address of the PLT entry for this function, as specified
7083 by the ABI. Instead, the offset is set to the address of
7084 the GOT slot for this function. See EABI 4.4.4.1. */
7085 rela.r_offset = (htab->sgotplt->output_section->vma
7086 + htab->sgotplt->output_offset
7087 + got_offset);
7088
a6aa5195
AM		 7089 }
7090 else
7091 {
9d8504b1
PB		 7092 rela.r_offset = (htab->plt->output_section->vma
7093 + htab->plt->output_offset
7094 + ent->plt.offset);
4a3dc543 7095 if (htab->plt_type == PLT_OLD)
9d8504b1
PB		 7096 {
7097 /* We don't need to fill in the .plt. The ppc dynamic
7098 linker will fill it in. */
7099 }
7100 else
7101 {
7102 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
7103 + htab->glink->output_section->vma
7104 + htab->glink->output_offset);
7105 bfd_put_32 (output_bfd, val,
7106 htab->plt->contents + ent->plt.offset);
7107 }
a6aa5195 7108 }
e1a9cb8e 7109
a6aa5195 7110 /* Fill in the entry in the .rela.plt section. */
a6aa5195
AM		 7111 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
7112 rela.r_addend = 0;
e1a9cb8e 7113
a6aa5195
AM		 7114 loc = (htab->relplt->contents
7115 + reloc_index * sizeof (Elf32_External_Rela));
7116 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 7117
a6aa5195
AM		 7118 if (!h->def_regular)
7119 {
7120 /* Mark the symbol as undefined, rather than as defined in
7121 the .plt section. Leave the value alone. */
7122 sym->st_shndx = SHN_UNDEF;
7123 /* If the symbol is weak, we do need to clear the value.
7124 Otherwise, the PLT entry would provide a definition for
7125 the symbol even if the symbol wasn't defined anywhere,
7126 and so the symbol would never be NULL. */
7127 if (!h->ref_regular_nonweak)
7128 sym->st_value = 0;
7129 }
7130 doneone = TRUE;
7131 }
e1a9cb8e 7132
4a3dc543 7133 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 7134 {
7135 bfd_vma plt;
7136 unsigned char *p;
e1a9cb8e 7137
a6aa5195
AM		 7138 plt = (ent->plt.offset
7139 + htab->plt->output_section->vma
7140 + htab->plt->output_offset);
7141 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
e1a9cb8e 7142
a6aa5195
AM		 7143 if (info->shared || info->pie)
7144 {
7145 bfd_vma got = 0;
7146
7147 if (ent->addend >= 32768)
7148 got = (ent->addend
7149 + ent->sec->output_section->vma
7150 + ent->sec->output_offset);
7151 else if (htab->elf.hgot != NULL)
7152 got = (htab->elf.hgot->root.u.def.value
7153 + htab->elf.hgot->root.u.def.section->output_section->vma
7154 + htab->elf.hgot->root.u.def.section->output_offset);
7155
7156 plt -= got;
7157
7158 if (plt + 0x8000 < 0x10000)
7159 {
7160 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7161 p += 4;
7162 bfd_put_32 (output_bfd, MTCTR_11, p);
7163 p += 4;
7164 bfd_put_32 (output_bfd, BCTR, p);
7165 p += 4;
7166 bfd_put_32 (output_bfd, NOP, p);
7167 p += 4;
7168 }
7169 else
7170 {
7171 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7172 p += 4;
7173 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7174 p += 4;
7175 bfd_put_32 (output_bfd, MTCTR_11, p);
7176 p += 4;
7177 bfd_put_32 (output_bfd, BCTR, p);
7178 p += 4;
7179 }
7180 }
7181 else
7182 {
7183 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7184 p += 4;
7185 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7186 p += 4;
7187 bfd_put_32 (output_bfd, MTCTR_11, p);
7188 p += 4;
7189 bfd_put_32 (output_bfd, BCTR, p);
7190 p += 4;
28e99bb6
AM		 7191
7192 /* We only need one non-PIC glink stub. */
7193 break;
a6aa5195
AM		 7194 }
7195 }
7196 else
7197 break;
7198 }
e1a9cb8e 7199
25dbc73a
AM		 7200 if (h->needs_copy)
7201 {
7202 asection *s;
7203 Elf_Internal_Rela rela;
7204 bfd_byte *loc;
e1a9cb8e 7205
25dbc73a 7206 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 7207
25dbc73a
AM		 7208#ifdef DEBUG
7209 fprintf (stderr, ", copy");
7210#endif
e1a9cb8e 7211
25dbc73a 7212 BFD_ASSERT (h->dynindx != -1);
86bbe32f 7213
4dc4a9a5 7214 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 7215 s = htab->relsbss;
7216 else
7217 s = htab->relbss;
7218 BFD_ASSERT (s != NULL);
e1a9cb8e 7219
25dbc73a
AM		 7220 rela.r_offset = (h->root.u.def.value
7221 + h->root.u.def.section->output_section->vma
7222 + h->root.u.def.section->output_offset);
7223 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7224 rela.r_addend = 0;
7225 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7226 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7227 }
e1a9cb8e 7228
25dbc73a
AM		 7229#ifdef DEBUG
7230 fprintf (stderr, "\n");
7231#endif
e1a9cb8e 7232
25dbc73a 7233 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB		 7234 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7235 || (!htab->is_vxworks
7236 && (h == htab->elf.hgot
7237 || strcmp (h->root.root.string,
7238 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 7239 sym->st_shndx = SHN_ABS;
e1a9cb8e 7240
25dbc73a
AM		 7241 return TRUE;
7242}
7243\f
7244static enum elf_reloc_type_class
7245ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 7246{
25dbc73a
AM		 7247 switch (ELF32_R_TYPE (rela->r_info))
7248 {
7249 case R_PPC_RELATIVE:
7250 return reloc_class_relative;
7251 case R_PPC_REL24:
7252 case R_PPC_ADDR24:
7253 case R_PPC_JMP_SLOT:
7254 return reloc_class_plt;
7255 case R_PPC_COPY:
7256 return reloc_class_copy;
7257 default:
7258 return reloc_class_normal;
7259 }
e1a9cb8e 7260}
25dbc73a
AM		 7261\f
7262/* Finish up the dynamic sections. */
e1a9cb8e 7263
25dbc73a
AM		 7264static bfd_boolean
7265ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7266 struct bfd_link_info *info)
e1a9cb8e 7267{
25dbc73a 7268 asection *sdyn;
9d8504b1 7269 asection *splt;
25dbc73a 7270 struct ppc_elf_link_hash_table *htab;
1fe44d79 7271 bfd_vma got;
9d8504b1 7272 bfd * dynobj;
e1a9cb8e 7273
25dbc73a
AM		 7274#ifdef DEBUG
7275 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7276#endif
6b0817e5 7277
25dbc73a 7278 htab = ppc_elf_hash_table (info);
9d8504b1
PB		 7279 dynobj = elf_hash_table (info)->dynobj;
7280 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7281 if (htab->is_vxworks)
7282 splt = bfd_get_section_by_name (dynobj, ".plt");
7283 else
7284 splt = NULL;
e1a9cb8e 7285
1fe44d79
AM		 7286 got = 0;
7287 if (htab->elf.hgot != NULL)
7288 got = (htab->elf.hgot->root.u.def.value
7289 + htab->elf.hgot->root.u.def.section->output_section->vma
7290 + htab->elf.hgot->root.u.def.section->output_offset);
7291
25dbc73a 7292 if (htab->elf.dynamic_sections_created)
e1a9cb8e 7293 {
25dbc73a 7294 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 7295
25dbc73a 7296 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 7297
25dbc73a
AM		 7298 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7299 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7300 for (; dyncon < dynconend; dyncon++)
7301 {
7302 Elf_Internal_Dyn dyn;
7303 asection *s;
e1a9cb8e 7304
9d8504b1 7305 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 7306
25dbc73a
AM		 7307 switch (dyn.d_tag)
7308 {
7309 case DT_PLTGOT:
9d8504b1
PB		 7310 if (htab->is_vxworks)
7311 s = htab->sgotplt;
7312 else
7313 s = htab->plt;
25dbc73a
AM		 7314 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7315 break;
86bbe32f 7316
25dbc73a
AM		 7317 case DT_PLTRELSZ:
7318 dyn.d_un.d_val = htab->relplt->size;
7319 break;
e1a9cb8e 7320
25dbc73a
AM		 7321 case DT_JMPREL:
7322 s = htab->relplt;
7323 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7324 break;
2f89ff8d 7325
1fe44d79
AM		 7326 case DT_PPC_GOT:
7327 dyn.d_un.d_ptr = got;
d7128ce4
AM		 7328 break;
7329
9d8504b1
PB		 7330 case DT_RELASZ:
7331 if (htab->is_vxworks)
7332 {
7333 if (htab->relplt)
7334 dyn.d_un.d_ptr -= htab->relplt->size;
7335 break;
7336 }
7337 continue;
7338
25dbc73a
AM		 7339 default:
7340 continue;
7341 }
4c45e5c9 7342
25dbc73a
AM		 7343 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7344 }
7345 }
4c45e5c9 7346
25dbc73a
AM		 7347 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7348 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
3b36f7e6 7349 if (htab->got != NULL)
25dbc73a 7350 {
3b36f7e6
AM		 7351 unsigned char *p = htab->got->contents;
7352 bfd_vma val;
2f89ff8d 7353
636ce3f5 7354 p += htab->elf.hgot->root.u.def.value;
4a3dc543 7355 if (htab->plt_type == PLT_OLD)
d7128ce4 7356 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
3b36f7e6
AM		 7357
7358 val = 0;
7359 if (sdyn != NULL)
7360 val = sdyn->output_section->vma + sdyn->output_offset;
7361 bfd_put_32 (output_bfd, val, p);
25dbc73a
AM		 7362
7363 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7364 }
7365
9d8504b1
PB		 7366 /* Fill in the first entry in the VxWorks procedure linkage table. */
7367 if (splt && splt->size > 0)
7368 {
7369 /* Use the right PLT. */
7370 static const bfd_vma *plt_entry = NULL;
7371 plt_entry = info->shared ?
7372 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7373
7374 if (!info->shared)
7375 {
7376 bfd_vma got_value =
636ce3f5
AM		 7377 (htab->elf.hgot->root.u.def.section->output_section->vma
7378 + htab->elf.hgot->root.u.def.section->output_offset
7379 + htab->elf.hgot->root.u.def.value);
9d8504b1
PB		 7380 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7381
7382 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7383 splt->contents + 0);
7384 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7385 splt->contents + 4);
7386 }
7387 else
7388 {
7389 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7390 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7391 }
7392 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7393 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7394 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7395 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7396 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7397 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7398
7399 if (! info->shared)
7400 {
7401 Elf_Internal_Rela rela;
7402 bfd_byte *loc;
7403
7404 loc = htab->srelplt2->contents;
7405
7406 /* Output the @ha relocation for the first instruction. */
7407 rela.r_offset = (htab->plt->output_section->vma
7408 + htab->plt->output_offset
7409 + 2);
636ce3f5 7410 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7411 rela.r_addend = 0;
7412 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7413 loc += sizeof (Elf32_External_Rela);
7414
7415 /* Output the @l relocation for the second instruction. */
7416 rela.r_offset = (htab->plt->output_section->vma
7417 + htab->plt->output_offset
7418 + 6);
636ce3f5 7419 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7420 rela.r_addend = 0;
7421 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7422 loc += sizeof (Elf32_External_Rela);
7423
7424 /* Fix up the remaining relocations. They may have the wrong
7425 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7426 in which symbols were output. */
7427 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7428 {
7429 Elf_Internal_Rela rel;
7430
7431 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7432 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7433 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7434 loc += sizeof (Elf32_External_Rela);
7435
7436 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7437 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7438 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7439 loc += sizeof (Elf32_External_Rela);
7440
7441 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 7442 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB		 7443 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7444 loc += sizeof (Elf32_External_Rela);
7445 }
7446 }
7447 }
7448
d7128ce4
AM		 7449 if (htab->glink != NULL && htab->glink->contents != NULL)
7450 {
7451 unsigned char *p;
7452 unsigned char *endp;
a6aa5195 7453 bfd_vma res0;
d7128ce4 7454 unsigned int i;
a6aa5195
AM		 7455
7456 /*
7457 * PIC glink code is the following:
7458 *
7459 * # ith PLT code stub.
7460 * addis 11,30,(plt+(i-1)*4-got)@ha
7461 * lwz 11,(plt+(i-1)*4-got)@l(11)
7462 * mtctr 11
7463 * bctr
7464 *
7465 * # A table of branches, one for each plt entry.
7466 * # The idea is that the plt call stub loads ctr (and r11) with these
7467 * # addresses, so (r11 - res_0) gives the plt index * 4.
7468 * res_0: b PLTresolve
7469 * res_1: b PLTresolve
7470 * .
7471 * # Some number of entries towards the end can be nops
7472 * res_n_m3: nop
7473 * res_n_m2: nop
7474 * res_n_m1:
7475 *
7476 * PLTresolve:
7477 * addis 11,11,(1f-res_0)@ha
7478 * mflr 0
7479 * bcl 20,31,1f
7480 * 1: addi 11,11,(1b-res_0)@l
7481 * mflr 12
7482 * mtlr 0
7483 * sub 11,11,12 # r11 = index * 4
7484 * addis 12,12,(got+4-1b)@ha
7485 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7486 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7487 * mtctr 0
7488 * add 0,11,11
7489 * add 11,0,11 # r11 = index * 12 = reloc offset.
7490 * bctr
7491 */
7492 static const unsigned int pic_plt_resolve[] =
7493 {
7494 ADDIS_11_11,
7495 MFLR_0,
7496 BCL_20_31,
7497 ADDI_11_11,
7498 MFLR_12,
7499 MTLR_0,
7500 SUB_11_11_12,
7501 ADDIS_12_12,
7502 LWZ_0_12,
7503 LWZ_12_12,
7504 MTCTR_0,
7505 ADD_0_11_11,
7506 ADD_11_0_11,
7507 BCTR,
7508 NOP,
7509 NOP
7510 };
7511
d7128ce4
AM		 7512 static const unsigned int plt_resolve[] =
7513 {
a6aa5195
AM		 7514 LIS_12,
7515 ADDIS_11_11,
7516 LWZ_0_12,
7517 ADDI_11_11,
d7128ce4 7518 MTCTR_0,
7e8aeb9a 7519 ADD_0_11_11,
a6aa5195 7520 LWZ_12_12,
7e8aeb9a 7521 ADD_11_0_11,
d7128ce4
AM		 7522 BCTR,
7523 NOP,
7524 NOP,
a6aa5195
AM		 7525 NOP,
7526 NOP,
7527 NOP,
7528 NOP,
d7128ce4
AM		 7529 NOP
7530 };
7531
a6aa5195
AM		 7532 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7533 abort ();
7534 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM		 7535 abort ();
7536
a6aa5195 7537 /* Build the branch table, one for each plt entry (less one),
86b9da88 7538 and perhaps some padding. */
a6aa5195
AM		 7539 p = htab->glink->contents;
7540 p += htab->glink_pltresolve;
86b9da88
AM		 7541 endp = htab->glink->contents;
7542 endp += htab->glink->size - GLINK_PLTRESOLVE;
7543 while (p < endp - 8 * 4)
7544 {
7545 bfd_put_32 (output_bfd, B + endp - p, p);
7546 p += 4;
7547 }
7548 while (p < endp)
7549 {
7550 bfd_put_32 (output_bfd, NOP, p);
7551 p += 4;
7552 }
7553
7e8aeb9a 7554 res0 = (htab->glink_pltresolve
86b9da88
AM		 7555 + htab->glink->output_section->vma
7556 + htab->glink->output_offset);
7557
7558 /* Last comes the PLTresolve stub. */
7e8aeb9a
AM		 7559 if (info->shared || info->pie)
7560 {
a6aa5195 7561 bfd_vma bcl;
d7128ce4 7562
a6aa5195 7563 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 7564 {
a6aa5195 7565 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM		 7566 p += 4;
7567 }
a6aa5195
AM		 7568 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7569
7570 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7571 + htab->glink->output_section->vma
7572 + htab->glink->output_offset);
7573
7574 bfd_put_32 (output_bfd,
7575 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7576 bfd_put_32 (output_bfd,
7577 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7578 bfd_put_32 (output_bfd,
7579 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7580 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7581 {
7582 bfd_put_32 (output_bfd,
7583 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7584 bfd_put_32 (output_bfd,
7585 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7586 }
7587 else
7588 {
7589 bfd_put_32 (output_bfd,
7590 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7591 bfd_put_32 (output_bfd,
7592 LWZ_12_12 + 4, p + 9*4);
7593 }
7e8aeb9a
AM		 7594 }
7595 else
d7128ce4 7596 {
a6aa5195 7597 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM		 7598 {
7599 bfd_put_32 (output_bfd, plt_resolve[i], p);
7600 p += 4;
7601 }
a6aa5195
AM		 7602 p -= 4 * ARRAY_SIZE (plt_resolve);
7603
7604 bfd_put_32 (output_bfd,
7605 LIS_12 + PPC_HA (got + 4), p + 0*4);
7606 bfd_put_32 (output_bfd,
7607 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7608 bfd_put_32 (output_bfd,
7609 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7610 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7611 {
7612 bfd_put_32 (output_bfd,
7613 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7614 bfd_put_32 (output_bfd,
7615 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7616 }
7617 else
7618 {
7619 bfd_put_32 (output_bfd,
7620 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7621 bfd_put_32 (output_bfd,
7622 LWZ_12_12 + 4, p + 6*4);
7623 }
d7128ce4 7624 }
d7128ce4
AM		 7625 }
7626
25dbc73a
AM		 7627 return TRUE;
7628}
e1a9cb8e 7629\f
252b5132
RH		 7630#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7631#define TARGET_LITTLE_NAME "elf32-powerpcle"
7632#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7633#define TARGET_BIG_NAME "elf32-powerpc"
7634#define ELF_ARCH bfd_arch_powerpc
7635#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC		 7636#ifdef __QNXTARGET__
7637#define ELF_MAXPAGESIZE 0x1000
7638#else
252b5132 7639#define ELF_MAXPAGESIZE 0x10000
d0facd1b 7640#endif
b1342370 7641#define ELF_MINPAGESIZE 0x1000
24718e3b 7642#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH		 7643#define elf_info_to_howto ppc_elf_info_to_howto
7644
7645#ifdef EM_CYGNUS_POWERPC
7646#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
7647#endif
7648
7649#ifdef EM_PPC_OLD
7650#define ELF_MACHINE_ALT2 EM_PPC_OLD
7651#endif
7652
7653#define elf_backend_plt_not_loaded 1
252b5132 7654#define elf_backend_can_gc_sections 1
51b64d56 7655#define elf_backend_can_refcount 1
b491616a 7656#define elf_backend_rela_normal 1
252b5132 7657
43c40ab2 7658#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 7659#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 7660#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 7661#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
157090f7 7662#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 7663#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 7664#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
252b5132 7665
feee612b 7666#define elf_backend_object_p ppc_elf_object_p
252b5132
RH		 7667#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
7668#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
7669#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
7670#define elf_backend_relocate_section ppc_elf_relocate_section
7671#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
7672#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 7673#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH		 7674#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
7675#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
7676#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
7677#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
7678#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
7679#define elf_backend_fake_sections ppc_elf_fake_sections
7680#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ		 7681#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
7682#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 7683#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 7684#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM		 7685#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
7686#define elf_backend_final_write_processing ppc_elf_final_write_processing
7687#define elf_backend_write_section ppc_elf_write_section
551b43fd 7688#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 7689#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 7690#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 7691#define elf_backend_init_index_section _bfd_elf_init_1_index_section
252b5132
RH		 7692
7693#include "elf32-target.h"
9d8504b1
PB		 7694
7695/* VxWorks Target */
7696
7697#undef TARGET_LITTLE_SYM
7698#undef TARGET_LITTLE_NAME
7699
7700#undef TARGET_BIG_SYM
7701#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
7702#undef TARGET_BIG_NAME
7703#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
7704
d5e3d971
PB		 7705/* VxWorks uses the elf default section flags for .plt. */
7706static const struct bfd_elf_special_section *
7707ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 7708{
d5e3d971
PB		 7709 if (sec->name == NULL)
7710 return NULL;
7711
7712 if (strcmp (sec->name, ".plt") == 0)
7713 return _bfd_elf_get_sec_type_attr (abfd, sec);
7714
7715 return ppc_elf_get_sec_type_attr (abfd, sec);
7716}
9d8504b1
PB		 7717
7718/* Like ppc_elf_link_hash_table_create, but overrides
7719 appropriately for VxWorks. */
7720static struct bfd_link_hash_table *
7721ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
7722{
7723 struct bfd_link_hash_table *ret;
7724
7725 ret = ppc_elf_link_hash_table_create (abfd);
7726 if (ret)
7727 {
7728 struct ppc_elf_link_hash_table *htab
7729 = (struct ppc_elf_link_hash_table *)ret;
7730 htab->is_vxworks = 1;
4a3dc543 7731 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB		 7732 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
7733 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
7734 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
7735 }
7736 return ret;
7737}
7738
7739/* Tweak magic VxWorks symbols as they are loaded. */
7740static bfd_boolean
7741ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
7742 struct bfd_link_info *info,
7743 Elf_Internal_Sym *sym,
7744 const char **namep ATTRIBUTE_UNUSED,
7745 flagword *flagsp ATTRIBUTE_UNUSED,
7746 asection **secp,
7747 bfd_vma *valp)
7748{
7749 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
7750 valp))
7751 return FALSE;
7752
7753 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
7754}
7755
9d8504b1
PB		 7756static void
7757ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
7758{
7759 ppc_elf_final_write_processing(abfd, linker);
7760 elf_vxworks_final_write_processing(abfd, linker);
7761}
7762
7763/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
7764 define it. */
7765#undef elf_backend_want_plt_sym
7766#define elf_backend_want_plt_sym 1
7767#undef elf_backend_want_got_plt
7768#define elf_backend_want_got_plt 1
7769#undef elf_backend_got_symbol_offset
7770#define elf_backend_got_symbol_offset 0
7771#undef elf_backend_plt_not_loaded
7772#define elf_backend_plt_not_loaded 0
7773#undef elf_backend_plt_readonly
7774#define elf_backend_plt_readonly 1
7775#undef elf_backend_got_header_size
7776#define elf_backend_got_header_size 12
7777
7778#undef bfd_elf32_bfd_link_hash_table_create
7779#define bfd_elf32_bfd_link_hash_table_create \
7780 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB		 7781#undef elf_backend_add_symbol_hook
7782#define elf_backend_add_symbol_hook \
7783 ppc_elf_vxworks_add_symbol_hook
7784#undef elf_backend_link_output_symbol_hook
7785#define elf_backend_link_output_symbol_hook \
9c72ff84 7786 elf_vxworks_link_output_symbol_hook
9d8504b1
PB		 7787#undef elf_backend_final_write_processing
7788#define elf_backend_final_write_processing \
7789 ppc_elf_vxworks_final_write_processing
d5e3d971
PB		 7790#undef elf_backend_get_sec_type_attr
7791#define elf_backend_get_sec_type_attr \
7792 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB		 7793#undef elf_backend_emit_relocs
7794#define elf_backend_emit_relocs \
7795 elf_vxworks_emit_relocs
7796
7797#undef elf32_bed
7798#define elf32_bed ppc_elf_vxworks_bed
7799
7800#include "elf32-target.h"
GDB Binutils - Deliverables
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