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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,
66eb6687 3 2004, 2005, 2006 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
10 the Free Software Foundation; either version 2 of the License, or
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
RH		 22
23/* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
27
28#include "bfd.h"
29#include "sysdep.h"
30#include "bfdlink.h"
31#include "libbfd.h"
32#include "elf-bfd.h"
33#include "elf/ppc.h"
7619e7c7 34#include "elf32-ppc.h"
9d8504b1 35#include "elf-vxworks.h"
252b5132 36
f0fe0e16 37/* RELA relocations are used here. */
252b5132 38
252b5132 39static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 40 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 41static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 43
70bccea4
AM		 44/* Branch prediction bit for branch taken relocs. */
45#define BRANCH_PREDICT_BIT 0x200000
46/* Mask to set RA in memory instructions. */
47#define RA_REGISTER_MASK 0x001f0000
48/* Value to shift register by to insert RA. */
49#define RA_REGISTER_SHIFT 16
252b5132
RH		 50
51/* The name of the dynamic interpreter. This is put in the .interp
52 section. */
252b5132
RH		 53#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
54
d7128ce4 55/* For old-style PLT. */
252b5132
RH		 56/* The number of single-slot PLT entries (the rest use two slots). */
57#define PLT_NUM_SINGLE_ENTRIES 8192
58
d7128ce4 59/* For new-style .glink and .plt. */
a6aa5195 60#define GLINK_PLTRESOLVE 16*4
d7128ce4
AM		 61#define GLINK_ENTRY_SIZE 4*4
62
9d8504b1
PB		 63/* VxWorks uses its own plt layout, filled in by the static linker. */
64
65/* The standard VxWorks PLT entry. */
66#define VXWORKS_PLT_ENTRY_SIZE 32
67static const bfd_vma ppc_elf_vxworks_plt_entry
68 [VXWORKS_PLT_ENTRY_SIZE / 4] =
69 {
70 0x3d800000, /* lis r12,0 */
71 0x818c0000, /* lwz r12,0(r12) */
72 0x7d8903a6, /* mtctr r12 */
73 0x4e800420, /* bctr */
74 0x39600000, /* li r11,0 */
75 0x48000000, /* b 14 <.PLT0resolve+0x4> */
76 0x60000000, /* nop */
77 0x60000000, /* nop */
78 };
79static const bfd_vma ppc_elf_vxworks_pic_plt_entry
80 [VXWORKS_PLT_ENTRY_SIZE / 4] =
81 {
82 0x3d9e0000, /* addis r12,r30,0 */
83 0x818c0000, /* lwz r12,0(r12) */
84 0x7d8903a6, /* mtctr r12 */
85 0x4e800420, /* bctr */
86 0x39600000, /* li r11,0 */
87 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
88 0x60000000, /* nop */
89 0x60000000, /* nop */
90 };
91
92/* The initial VxWorks PLT entry. */
93#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
94static const bfd_vma ppc_elf_vxworks_plt0_entry
95 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
96 {
97 0x3d800000, /* lis r12,0 */
98 0x398c0000, /* addi r12,r12,0 */
99 0x800c0008, /* lwz r0,8(r12) */
100 0x7c0903a6, /* mtctr r0 */
101 0x818c0004, /* lwz r12,4(r12) */
102 0x4e800420, /* bctr */
103 0x60000000, /* nop */
104 0x60000000, /* nop */
105 };
106static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
107 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
108 {
109 0x819e0008, /* lwz r12,8(r30) */
110 0x7d8903a6, /* mtctr r12 */
111 0x819e0004, /* lwz r12,4(r30) */
112 0x4e800420, /* bctr */
113 0x60000000, /* nop */
114 0x60000000, /* nop */
115 0x60000000, /* nop */
116 0x60000000, /* nop */
117 };
118
119/* For executables, we have some additional relocations in
120 .rela.plt.unloaded, for the kernel loader. */
121
122/* The number of non-JMP_SLOT relocations per PLT0 slot. */
123#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
124/* The number of relocations in the PLTResolve slot. */
125#define VXWORKS_PLTRESOLVE_RELOCS 2
126/* The number of relocations in the PLTResolve slot when when creating
127 a shared library. */
128#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
129
d7128ce4 130/* Some instructions. */
d7128ce4 131#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM		 132#define ADDIS_11_30 0x3d7e0000
133#define ADDIS_12_12 0x3d8c0000
d7128ce4 134#define ADDI_11_11 0x396b0000
d7128ce4
AM		 135#define ADD_0_11_11 0x7c0b5a14
136#define ADD_11_0_11 0x7d605a14
a6aa5195
AM		 137#define B 0x48000000
138#define BCL_20_31 0x429f0005
d7128ce4 139#define BCTR 0x4e800420
7e8aeb9a
AM		 140#define LIS_11 0x3d600000
141#define LIS_12 0x3d800000
a6aa5195
AM		 142#define LWZU_0_12 0x840c0000
143#define LWZ_0_12 0x800c0000
144#define LWZ_11_11 0x816b0000
145#define LWZ_11_30 0x817e0000
146#define LWZ_12_12 0x818c0000
147#define MFLR_0 0x7c0802a6
148#define MFLR_12 0x7d8802a6
149#define MTCTR_0 0x7c0903a6
150#define MTCTR_11 0x7d6903a6
151#define MTLR_0 0x7c0803a6
152#define NOP 0x60000000
153#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM		 154
155/* Offset of tp and dtp pointers from start of TLS block. */
156#define TP_OFFSET 0x7000
157#define DTP_OFFSET 0x8000
7fce784e 158\f
e47cd125 159static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 160
8da6118f 161static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH		 162 /* This reloc does nothing. */
163 HOWTO (R_PPC_NONE, /* type */
164 0, /* rightshift */
165 2, /* size (0 = byte, 1 = short, 2 = long) */
166 32, /* bitsize */
b34976b6 167 FALSE, /* pc_relative */
252b5132
RH		 168 0, /* bitpos */
169 complain_overflow_bitfield, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_PPC_NONE", /* name */
b34976b6 172 FALSE, /* partial_inplace */
252b5132
RH		 173 0, /* src_mask */
174 0, /* dst_mask */
b34976b6 175 FALSE), /* pcrel_offset */
252b5132
RH		 176
177 /* A standard 32 bit relocation. */
178 HOWTO (R_PPC_ADDR32, /* type */
179 0, /* rightshift */
180 2, /* size (0 = byte, 1 = short, 2 = long) */
181 32, /* bitsize */
b34976b6 182 FALSE, /* pc_relative */
252b5132
RH		 183 0, /* bitpos */
184 complain_overflow_bitfield, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_PPC_ADDR32", /* name */
b34976b6 187 FALSE, /* partial_inplace */
252b5132
RH		 188 0, /* src_mask */
189 0xffffffff, /* dst_mask */
b34976b6 190 FALSE), /* pcrel_offset */
252b5132
RH		 191
192 /* An absolute 26 bit branch; the lower two bits must be zero.
193 FIXME: we don't check that, we just clear them. */
194 HOWTO (R_PPC_ADDR24, /* type */
195 0, /* rightshift */
196 2, /* size (0 = byte, 1 = short, 2 = long) */
197 26, /* bitsize */
b34976b6 198 FALSE, /* pc_relative */
252b5132
RH		 199 0, /* bitpos */
200 complain_overflow_bitfield, /* complain_on_overflow */
201 bfd_elf_generic_reloc, /* special_function */
202 "R_PPC_ADDR24", /* name */
b34976b6 203 FALSE, /* partial_inplace */
252b5132
RH		 204 0, /* src_mask */
205 0x3fffffc, /* dst_mask */
b34976b6 206 FALSE), /* pcrel_offset */
252b5132
RH		 207
208 /* A standard 16 bit relocation. */
209 HOWTO (R_PPC_ADDR16, /* type */
210 0, /* rightshift */
211 1, /* size (0 = byte, 1 = short, 2 = long) */
212 16, /* bitsize */
b34976b6 213 FALSE, /* pc_relative */
252b5132
RH		 214 0, /* bitpos */
215 complain_overflow_bitfield, /* complain_on_overflow */
216 bfd_elf_generic_reloc, /* special_function */
217 "R_PPC_ADDR16", /* name */
b34976b6 218 FALSE, /* partial_inplace */
252b5132
RH		 219 0, /* src_mask */
220 0xffff, /* dst_mask */
b34976b6 221 FALSE), /* pcrel_offset */
252b5132
RH		 222
223 /* A 16 bit relocation without overflow. */
224 HOWTO (R_PPC_ADDR16_LO, /* type */
225 0, /* rightshift */
226 1, /* size (0 = byte, 1 = short, 2 = long) */
227 16, /* bitsize */
b34976b6 228 FALSE, /* pc_relative */
252b5132
RH		 229 0, /* bitpos */
230 complain_overflow_dont,/* complain_on_overflow */
231 bfd_elf_generic_reloc, /* special_function */
232 "R_PPC_ADDR16_LO", /* name */
b34976b6 233 FALSE, /* partial_inplace */
252b5132
RH		 234 0, /* src_mask */
235 0xffff, /* dst_mask */
b34976b6 236 FALSE), /* pcrel_offset */
252b5132
RH		 237
238 /* The high order 16 bits of an address. */
239 HOWTO (R_PPC_ADDR16_HI, /* type */
240 16, /* rightshift */
241 1, /* size (0 = byte, 1 = short, 2 = long) */
242 16, /* bitsize */
b34976b6 243 FALSE, /* pc_relative */
252b5132
RH		 244 0, /* bitpos */
245 complain_overflow_dont, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_PPC_ADDR16_HI", /* name */
b34976b6 248 FALSE, /* partial_inplace */
252b5132
RH		 249 0, /* src_mask */
250 0xffff, /* dst_mask */
b34976b6 251 FALSE), /* pcrel_offset */
252b5132
RH		 252
253 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 254 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH		 255 HOWTO (R_PPC_ADDR16_HA, /* type */
256 16, /* rightshift */
257 1, /* size (0 = byte, 1 = short, 2 = long) */
258 16, /* bitsize */
b34976b6 259 FALSE, /* pc_relative */
252b5132
RH		 260 0, /* bitpos */
261 complain_overflow_dont, /* complain_on_overflow */
262 ppc_elf_addr16_ha_reloc, /* special_function */
263 "R_PPC_ADDR16_HA", /* name */
b34976b6 264 FALSE, /* partial_inplace */
252b5132
RH		 265 0, /* src_mask */
266 0xffff, /* dst_mask */
b34976b6 267 FALSE), /* pcrel_offset */
252b5132
RH		 268
269 /* An absolute 16 bit branch; the lower two bits must be zero.
270 FIXME: we don't check that, we just clear them. */
271 HOWTO (R_PPC_ADDR14, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 16, /* bitsize */
b34976b6 275 FALSE, /* pc_relative */
252b5132
RH		 276 0, /* bitpos */
277 complain_overflow_bitfield, /* complain_on_overflow */
278 bfd_elf_generic_reloc, /* special_function */
279 "R_PPC_ADDR14", /* name */
b34976b6 280 FALSE, /* partial_inplace */
252b5132
RH		 281 0, /* src_mask */
282 0xfffc, /* dst_mask */
b34976b6 283 FALSE), /* pcrel_offset */
252b5132
RH		 284
285 /* An absolute 16 bit branch, for which bit 10 should be set to
286 indicate that the branch is expected to be taken. The lower two
8da6118f 287 bits must be zero. */
252b5132
RH		 288 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
289 0, /* rightshift */
290 2, /* size (0 = byte, 1 = short, 2 = long) */
291 16, /* bitsize */
b34976b6 292 FALSE, /* pc_relative */
252b5132
RH		 293 0, /* bitpos */
294 complain_overflow_bitfield, /* complain_on_overflow */
295 bfd_elf_generic_reloc, /* special_function */
296 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 297 FALSE, /* partial_inplace */
252b5132
RH		 298 0, /* src_mask */
299 0xfffc, /* dst_mask */
b34976b6 300 FALSE), /* pcrel_offset */
252b5132
RH		 301
302 /* An absolute 16 bit branch, for which bit 10 should be set to
303 indicate that the branch is not expected to be taken. The lower
304 two bits must be zero. */
305 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
306 0, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 16, /* bitsize */
b34976b6 309 FALSE, /* pc_relative */
252b5132
RH		 310 0, /* bitpos */
311 complain_overflow_bitfield, /* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 314 FALSE, /* partial_inplace */
252b5132
RH		 315 0, /* src_mask */
316 0xfffc, /* dst_mask */
b34976b6 317 FALSE), /* pcrel_offset */
252b5132 318
8da6118f 319 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH		 320 HOWTO (R_PPC_REL24, /* type */
321 0, /* rightshift */
322 2, /* size (0 = byte, 1 = short, 2 = long) */
323 26, /* bitsize */
b34976b6 324 TRUE, /* pc_relative */
252b5132
RH		 325 0, /* bitpos */
326 complain_overflow_signed, /* complain_on_overflow */
327 bfd_elf_generic_reloc, /* special_function */
328 "R_PPC_REL24", /* name */
b34976b6 329 FALSE, /* partial_inplace */
252b5132
RH		 330 0, /* src_mask */
331 0x3fffffc, /* dst_mask */
b34976b6 332 TRUE), /* pcrel_offset */
252b5132 333
8da6118f 334 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH		 335 HOWTO (R_PPC_REL14, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
b34976b6 339 TRUE, /* pc_relative */
252b5132
RH		 340 0, /* bitpos */
341 complain_overflow_signed, /* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_PPC_REL14", /* name */
b34976b6 344 FALSE, /* partial_inplace */
252b5132
RH		 345 0, /* src_mask */
346 0xfffc, /* dst_mask */
b34976b6 347 TRUE), /* pcrel_offset */
252b5132 348
8da6118f 349 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH		 350 the branch is expected to be taken. The lower two bits must be
351 zero. */
352 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 16, /* bitsize */
b34976b6 356 TRUE, /* pc_relative */
252b5132
RH		 357 0, /* bitpos */
358 complain_overflow_signed, /* complain_on_overflow */
359 bfd_elf_generic_reloc, /* special_function */
360 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 361 FALSE, /* partial_inplace */
252b5132
RH		 362 0, /* src_mask */
363 0xfffc, /* dst_mask */
b34976b6 364 TRUE), /* pcrel_offset */
252b5132 365
8da6118f 366 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH		 367 the branch is not expected to be taken. The lower two bits must
368 be zero. */
369 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 16, /* bitsize */
b34976b6 373 TRUE, /* pc_relative */
252b5132
RH		 374 0, /* bitpos */
375 complain_overflow_signed, /* complain_on_overflow */
376 bfd_elf_generic_reloc, /* special_function */
377 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 378 FALSE, /* partial_inplace */
252b5132
RH		 379 0, /* src_mask */
380 0xfffc, /* dst_mask */
b34976b6 381 TRUE), /* pcrel_offset */
252b5132
RH		 382
383 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
384 symbol. */
385 HOWTO (R_PPC_GOT16, /* type */
386 0, /* rightshift */
387 1, /* size (0 = byte, 1 = short, 2 = long) */
388 16, /* bitsize */
b34976b6 389 FALSE, /* pc_relative */
252b5132
RH		 390 0, /* bitpos */
391 complain_overflow_signed, /* complain_on_overflow */
392 bfd_elf_generic_reloc, /* special_function */
393 "R_PPC_GOT16", /* name */
b34976b6 394 FALSE, /* partial_inplace */
252b5132
RH		 395 0, /* src_mask */
396 0xffff, /* dst_mask */
b34976b6 397 FALSE), /* pcrel_offset */
252b5132
RH		 398
399 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
400 the symbol. */
401 HOWTO (R_PPC_GOT16_LO, /* type */
402 0, /* rightshift */
403 1, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
b34976b6 405 FALSE, /* pc_relative */
252b5132
RH		 406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_PPC_GOT16_LO", /* name */
b34976b6 410 FALSE, /* partial_inplace */
252b5132
RH		 411 0, /* src_mask */
412 0xffff, /* dst_mask */
b34976b6 413 FALSE), /* pcrel_offset */
252b5132
RH		 414
415 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
416 the symbol. */
417 HOWTO (R_PPC_GOT16_HI, /* type */
418 16, /* rightshift */
419 1, /* size (0 = byte, 1 = short, 2 = long) */
420 16, /* bitsize */
b34976b6 421 FALSE, /* pc_relative */
252b5132
RH		 422 0, /* bitpos */
423 complain_overflow_bitfield, /* complain_on_overflow */
424 bfd_elf_generic_reloc, /* special_function */
425 "R_PPC_GOT16_HI", /* name */
b34976b6 426 FALSE, /* partial_inplace */
252b5132
RH		 427 0, /* src_mask */
428 0xffff, /* dst_mask */
b34976b6 429 FALSE), /* pcrel_offset */
252b5132
RH		 430
431 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
432 the symbol. */
433 HOWTO (R_PPC_GOT16_HA, /* type */
434 16, /* rightshift */
435 1, /* size (0 = byte, 1 = short, 2 = long) */
436 16, /* bitsize */
b34976b6 437 FALSE, /* pc_relative */
252b5132
RH		 438 0, /* bitpos */
439 complain_overflow_bitfield, /* complain_on_overflow */
440 ppc_elf_addr16_ha_reloc, /* special_function */
441 "R_PPC_GOT16_HA", /* name */
b34976b6 442 FALSE, /* partial_inplace */
252b5132
RH		 443 0, /* src_mask */
444 0xffff, /* dst_mask */
b34976b6 445 FALSE), /* pcrel_offset */
252b5132
RH		 446
447 /* Like R_PPC_REL24, but referring to the procedure linkage table
448 entry for the symbol. */
449 HOWTO (R_PPC_PLTREL24, /* type */
450 0, /* rightshift */
451 2, /* size (0 = byte, 1 = short, 2 = long) */
452 26, /* bitsize */
b34976b6 453 TRUE, /* pc_relative */
252b5132
RH		 454 0, /* bitpos */
455 complain_overflow_signed, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
457 "R_PPC_PLTREL24", /* name */
b34976b6 458 FALSE, /* partial_inplace */
252b5132
RH		 459 0, /* src_mask */
460 0x3fffffc, /* dst_mask */
b34976b6 461 TRUE), /* pcrel_offset */
252b5132
RH		 462
463 /* This is used only by the dynamic linker. The symbol should exist
464 both in the object being run and in some shared library. The
465 dynamic linker copies the data addressed by the symbol from the
466 shared library into the object, because the object being
467 run has to have the data at some particular address. */
468 HOWTO (R_PPC_COPY, /* type */
469 0, /* rightshift */
470 2, /* size (0 = byte, 1 = short, 2 = long) */
471 32, /* bitsize */
b34976b6 472 FALSE, /* pc_relative */
252b5132
RH		 473 0, /* bitpos */
474 complain_overflow_bitfield, /* complain_on_overflow */
475 bfd_elf_generic_reloc, /* special_function */
476 "R_PPC_COPY", /* name */
b34976b6 477 FALSE, /* partial_inplace */
252b5132
RH		 478 0, /* src_mask */
479 0, /* dst_mask */
b34976b6 480 FALSE), /* pcrel_offset */
252b5132
RH		 481
482 /* Like R_PPC_ADDR32, but used when setting global offset table
483 entries. */
484 HOWTO (R_PPC_GLOB_DAT, /* type */
485 0, /* rightshift */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
487 32, /* bitsize */
b34976b6 488 FALSE, /* pc_relative */
252b5132
RH		 489 0, /* bitpos */
490 complain_overflow_bitfield, /* complain_on_overflow */
491 bfd_elf_generic_reloc, /* special_function */
492 "R_PPC_GLOB_DAT", /* name */
b34976b6 493 FALSE, /* partial_inplace */
252b5132
RH		 494 0, /* src_mask */
495 0xffffffff, /* dst_mask */
b34976b6 496 FALSE), /* pcrel_offset */
252b5132
RH		 497
498 /* Marks a procedure linkage table entry for a symbol. */
499 HOWTO (R_PPC_JMP_SLOT, /* type */
500 0, /* rightshift */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
502 32, /* bitsize */
b34976b6 503 FALSE, /* pc_relative */
252b5132
RH		 504 0, /* bitpos */
505 complain_overflow_bitfield, /* complain_on_overflow */
506 bfd_elf_generic_reloc, /* special_function */
507 "R_PPC_JMP_SLOT", /* name */
b34976b6 508 FALSE, /* partial_inplace */
252b5132
RH		 509 0, /* src_mask */
510 0, /* dst_mask */
b34976b6 511 FALSE), /* pcrel_offset */
252b5132
RH		 512
513 /* Used only by the dynamic linker. When the object is run, this
514 longword is set to the load address of the object, plus the
515 addend. */
516 HOWTO (R_PPC_RELATIVE, /* type */
517 0, /* rightshift */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
519 32, /* bitsize */
b34976b6 520 FALSE, /* pc_relative */
252b5132
RH		 521 0, /* bitpos */
522 complain_overflow_bitfield, /* complain_on_overflow */
523 bfd_elf_generic_reloc, /* special_function */
524 "R_PPC_RELATIVE", /* name */
b34976b6 525 FALSE, /* partial_inplace */
252b5132
RH		 526 0, /* src_mask */
527 0xffffffff, /* dst_mask */
b34976b6 528 FALSE), /* pcrel_offset */
252b5132
RH		 529
530 /* Like R_PPC_REL24, but uses the value of the symbol within the
531 object rather than the final value. Normally used for
532 _GLOBAL_OFFSET_TABLE_. */
533 HOWTO (R_PPC_LOCAL24PC, /* type */
534 0, /* rightshift */
535 2, /* size (0 = byte, 1 = short, 2 = long) */
536 26, /* bitsize */
b34976b6 537 TRUE, /* pc_relative */
252b5132
RH		 538 0, /* bitpos */
539 complain_overflow_signed, /* complain_on_overflow */
540 bfd_elf_generic_reloc, /* special_function */
541 "R_PPC_LOCAL24PC", /* name */
b34976b6 542 FALSE, /* partial_inplace */
252b5132
RH		 543 0, /* src_mask */
544 0x3fffffc, /* dst_mask */
b34976b6 545 TRUE), /* pcrel_offset */
252b5132
RH		 546
547 /* Like R_PPC_ADDR32, but may be unaligned. */
548 HOWTO (R_PPC_UADDR32, /* type */
549 0, /* rightshift */
550 2, /* size (0 = byte, 1 = short, 2 = long) */
551 32, /* bitsize */
b34976b6 552 FALSE, /* pc_relative */
252b5132
RH		 553 0, /* bitpos */
554 complain_overflow_bitfield, /* complain_on_overflow */
555 bfd_elf_generic_reloc, /* special_function */
556 "R_PPC_UADDR32", /* name */
b34976b6 557 FALSE, /* partial_inplace */
252b5132
RH		 558 0, /* src_mask */
559 0xffffffff, /* dst_mask */
b34976b6 560 FALSE), /* pcrel_offset */
252b5132
RH		 561
562 /* Like R_PPC_ADDR16, but may be unaligned. */
563 HOWTO (R_PPC_UADDR16, /* type */
564 0, /* rightshift */
565 1, /* size (0 = byte, 1 = short, 2 = long) */
566 16, /* bitsize */
b34976b6 567 FALSE, /* pc_relative */
252b5132
RH		 568 0, /* bitpos */
569 complain_overflow_bitfield, /* complain_on_overflow */
570 bfd_elf_generic_reloc, /* special_function */
571 "R_PPC_UADDR16", /* name */
b34976b6 572 FALSE, /* partial_inplace */
252b5132
RH		 573 0, /* src_mask */
574 0xffff, /* dst_mask */
b34976b6 575 FALSE), /* pcrel_offset */
252b5132
RH		 576
577 /* 32-bit PC relative */
578 HOWTO (R_PPC_REL32, /* type */
579 0, /* rightshift */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
581 32, /* bitsize */
b34976b6 582 TRUE, /* pc_relative */
252b5132
RH		 583 0, /* bitpos */
584 complain_overflow_bitfield, /* complain_on_overflow */
585 bfd_elf_generic_reloc, /* special_function */
586 "R_PPC_REL32", /* name */
b34976b6 587 FALSE, /* partial_inplace */
252b5132
RH		 588 0, /* src_mask */
589 0xffffffff, /* dst_mask */
b34976b6 590 TRUE), /* pcrel_offset */
252b5132
RH		 591
592 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 593 FIXME: not supported. */
252b5132
RH		 594 HOWTO (R_PPC_PLT32, /* type */
595 0, /* rightshift */
596 2, /* size (0 = byte, 1 = short, 2 = long) */
597 32, /* bitsize */
b34976b6 598 FALSE, /* pc_relative */
252b5132
RH		 599 0, /* bitpos */
600 complain_overflow_bitfield, /* complain_on_overflow */
601 bfd_elf_generic_reloc, /* special_function */
602 "R_PPC_PLT32", /* name */
b34976b6 603 FALSE, /* partial_inplace */
252b5132
RH		 604 0, /* src_mask */
605 0, /* dst_mask */
b34976b6 606 FALSE), /* pcrel_offset */
252b5132
RH		 607
608 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 609 FIXME: not supported. */
252b5132
RH		 610 HOWTO (R_PPC_PLTREL32, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 32, /* bitsize */
b34976b6 614 TRUE, /* pc_relative */
252b5132
RH		 615 0, /* bitpos */
616 complain_overflow_bitfield, /* complain_on_overflow */
617 bfd_elf_generic_reloc, /* special_function */
618 "R_PPC_PLTREL32", /* name */
b34976b6 619 FALSE, /* partial_inplace */
252b5132
RH		 620 0, /* src_mask */
621 0, /* dst_mask */
b34976b6 622 TRUE), /* pcrel_offset */
252b5132
RH		 623
624 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
625 the symbol. */
626 HOWTO (R_PPC_PLT16_LO, /* type */
627 0, /* rightshift */
628 1, /* size (0 = byte, 1 = short, 2 = long) */
629 16, /* bitsize */
b34976b6 630 FALSE, /* pc_relative */
252b5132
RH		 631 0, /* bitpos */
632 complain_overflow_dont, /* complain_on_overflow */
633 bfd_elf_generic_reloc, /* special_function */
634 "R_PPC_PLT16_LO", /* name */
b34976b6 635 FALSE, /* partial_inplace */
252b5132
RH		 636 0, /* src_mask */
637 0xffff, /* dst_mask */
b34976b6 638 FALSE), /* pcrel_offset */
252b5132
RH		 639
640 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
641 the symbol. */
642 HOWTO (R_PPC_PLT16_HI, /* type */
643 16, /* rightshift */
644 1, /* size (0 = byte, 1 = short, 2 = long) */
645 16, /* bitsize */
b34976b6 646 FALSE, /* pc_relative */
252b5132
RH		 647 0, /* bitpos */
648 complain_overflow_bitfield, /* complain_on_overflow */
649 bfd_elf_generic_reloc, /* special_function */
650 "R_PPC_PLT16_HI", /* name */
b34976b6 651 FALSE, /* partial_inplace */
252b5132
RH		 652 0, /* src_mask */
653 0xffff, /* dst_mask */
b34976b6 654 FALSE), /* pcrel_offset */
252b5132
RH		 655
656 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
657 the symbol. */
658 HOWTO (R_PPC_PLT16_HA, /* type */
659 16, /* rightshift */
660 1, /* size (0 = byte, 1 = short, 2 = long) */
661 16, /* bitsize */
b34976b6 662 FALSE, /* pc_relative */
252b5132
RH		 663 0, /* bitpos */
664 complain_overflow_bitfield, /* complain_on_overflow */
665 ppc_elf_addr16_ha_reloc, /* special_function */
666 "R_PPC_PLT16_HA", /* name */
b34976b6 667 FALSE, /* partial_inplace */
252b5132
RH		 668 0, /* src_mask */
669 0xffff, /* dst_mask */
b34976b6 670 FALSE), /* pcrel_offset */
252b5132
RH		 671
672 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
673 small data items. */
674 HOWTO (R_PPC_SDAREL16, /* type */
675 0, /* rightshift */
676 1, /* size (0 = byte, 1 = short, 2 = long) */
677 16, /* bitsize */
b34976b6 678 FALSE, /* pc_relative */
252b5132
RH		 679 0, /* bitpos */
680 complain_overflow_signed, /* complain_on_overflow */
681 bfd_elf_generic_reloc, /* special_function */
682 "R_PPC_SDAREL16", /* name */
b34976b6 683 FALSE, /* partial_inplace */
252b5132
RH		 684 0, /* src_mask */
685 0xffff, /* dst_mask */
b34976b6 686 FALSE), /* pcrel_offset */
252b5132 687
c061c2d8 688 /* 16-bit section relative relocation. */
252b5132
RH		 689 HOWTO (R_PPC_SECTOFF, /* type */
690 0, /* rightshift */
c061c2d8
AM		 691 1, /* size (0 = byte, 1 = short, 2 = long) */
692 16, /* bitsize */
b34976b6 693 FALSE, /* pc_relative */
252b5132
RH		 694 0, /* bitpos */
695 complain_overflow_bitfield, /* complain_on_overflow */
696 bfd_elf_generic_reloc, /* special_function */
697 "R_PPC_SECTOFF", /* name */
b34976b6 698 FALSE, /* partial_inplace */
252b5132 699 0, /* src_mask */
c061c2d8 700 0xffff, /* dst_mask */
b34976b6 701 FALSE), /* pcrel_offset */
252b5132 702
c3668558 703 /* 16-bit lower half section relative relocation. */
252b5132
RH		 704 HOWTO (R_PPC_SECTOFF_LO, /* type */
705 0, /* rightshift */
706 1, /* size (0 = byte, 1 = short, 2 = long) */
707 16, /* bitsize */
b34976b6 708 FALSE, /* pc_relative */
252b5132
RH		 709 0, /* bitpos */
710 complain_overflow_dont, /* complain_on_overflow */
711 bfd_elf_generic_reloc, /* special_function */
712 "R_PPC_SECTOFF_LO", /* name */
b34976b6 713 FALSE, /* partial_inplace */
252b5132
RH		 714 0, /* src_mask */
715 0xffff, /* dst_mask */
b34976b6 716 FALSE), /* pcrel_offset */
252b5132 717
c3668558 718 /* 16-bit upper half section relative relocation. */
252b5132
RH		 719 HOWTO (R_PPC_SECTOFF_HI, /* type */
720 16, /* rightshift */
721 1, /* size (0 = byte, 1 = short, 2 = long) */
722 16, /* bitsize */
b34976b6 723 FALSE, /* pc_relative */
252b5132
RH		 724 0, /* bitpos */
725 complain_overflow_bitfield, /* complain_on_overflow */
726 bfd_elf_generic_reloc, /* special_function */
727 "R_PPC_SECTOFF_HI", /* name */
b34976b6 728 FALSE, /* partial_inplace */
252b5132
RH		 729 0, /* src_mask */
730 0xffff, /* dst_mask */
b34976b6 731 FALSE), /* pcrel_offset */
252b5132 732
c3668558 733 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH		 734 HOWTO (R_PPC_SECTOFF_HA, /* type */
735 16, /* rightshift */
736 1, /* size (0 = byte, 1 = short, 2 = long) */
737 16, /* bitsize */
b34976b6 738 FALSE, /* pc_relative */
252b5132
RH		 739 0, /* bitpos */
740 complain_overflow_bitfield, /* complain_on_overflow */
741 ppc_elf_addr16_ha_reloc, /* special_function */
742 "R_PPC_SECTOFF_HA", /* name */
b34976b6 743 FALSE, /* partial_inplace */
252b5132
RH		 744 0, /* src_mask */
745 0xffff, /* dst_mask */
b34976b6 746 FALSE), /* pcrel_offset */
252b5132 747
7619e7c7
AM		 748 /* Marker reloc for TLS. */
749 HOWTO (R_PPC_TLS,
252b5132
RH		 750 0, /* rightshift */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
752 32, /* bitsize */
b34976b6 753 FALSE, /* pc_relative */
252b5132 754 0, /* bitpos */
7619e7c7 755 complain_overflow_dont, /* complain_on_overflow */
252b5132 756 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM		 757 "R_PPC_TLS", /* name */
758 FALSE, /* partial_inplace */
759 0, /* src_mask */
760 0, /* dst_mask */
761 FALSE), /* pcrel_offset */
762
763 /* Computes the load module index of the load module that contains the
764 definition of its TLS sym. */
765 HOWTO (R_PPC_DTPMOD32,
766 0, /* rightshift */
767 2, /* size (0 = byte, 1 = short, 2 = long) */
768 32, /* bitsize */
769 FALSE, /* pc_relative */
770 0, /* bitpos */
771 complain_overflow_dont, /* complain_on_overflow */
772 ppc_elf_unhandled_reloc, /* special_function */
773 "R_PPC_DTPMOD32", /* name */
b34976b6 774 FALSE, /* partial_inplace */
252b5132
RH		 775 0, /* src_mask */
776 0xffffffff, /* dst_mask */
b34976b6 777 FALSE), /* pcrel_offset */
252b5132 778
7619e7c7
AM		 779 /* Computes a dtv-relative displacement, the difference between the value
780 of sym+add and the base address of the thread-local storage block that
781 contains the definition of sym, minus 0x8000. */
782 HOWTO (R_PPC_DTPREL32,
783 0, /* rightshift */
784 2, /* size (0 = byte, 1 = short, 2 = long) */
785 32, /* bitsize */
786 FALSE, /* pc_relative */
787 0, /* bitpos */
788 complain_overflow_dont, /* complain_on_overflow */
789 ppc_elf_unhandled_reloc, /* special_function */
790 "R_PPC_DTPREL32", /* name */
791 FALSE, /* partial_inplace */
792 0, /* src_mask */
793 0xffffffff, /* dst_mask */
794 FALSE), /* pcrel_offset */
795
796 /* A 16 bit dtprel reloc. */
797 HOWTO (R_PPC_DTPREL16,
252b5132
RH		 798 0, /* rightshift */
799 1, /* size (0 = byte, 1 = short, 2 = long) */
800 16, /* bitsize */
b34976b6 801 FALSE, /* pc_relative */
252b5132 802 0, /* bitpos */
7619e7c7
AM		 803 complain_overflow_signed, /* complain_on_overflow */
804 ppc_elf_unhandled_reloc, /* special_function */
805 "R_PPC_DTPREL16", /* name */
b34976b6 806 FALSE, /* partial_inplace */
252b5132
RH		 807 0, /* src_mask */
808 0xffff, /* dst_mask */
b34976b6 809 FALSE), /* pcrel_offset */
252b5132 810
7619e7c7
AM		 811 /* Like DTPREL16, but no overflow. */
812 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH		 813 0, /* rightshift */
814 1, /* size (0 = byte, 1 = short, 2 = long) */
815 16, /* bitsize */
b34976b6 816 FALSE, /* pc_relative */
252b5132 817 0, /* bitpos */
7619e7c7
AM		 818 complain_overflow_dont, /* complain_on_overflow */
819 ppc_elf_unhandled_reloc, /* special_function */
820 "R_PPC_DTPREL16_LO", /* name */
b34976b6 821 FALSE, /* partial_inplace */
252b5132
RH		 822 0, /* src_mask */
823 0xffff, /* dst_mask */
b34976b6 824 FALSE), /* pcrel_offset */
252b5132 825
7619e7c7
AM		 826 /* Like DTPREL16_LO, but next higher group of 16 bits. */
827 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH		 828 16, /* rightshift */
829 1, /* size (0 = byte, 1 = short, 2 = long) */
830 16, /* bitsize */
b34976b6 831 FALSE, /* pc_relative */
252b5132
RH		 832 0, /* bitpos */
833 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 834 ppc_elf_unhandled_reloc, /* special_function */
835 "R_PPC_DTPREL16_HI", /* name */
b34976b6 836 FALSE, /* partial_inplace */
252b5132
RH		 837 0, /* src_mask */
838 0xffff, /* dst_mask */
b34976b6 839 FALSE), /* pcrel_offset */
252b5132 840
7619e7c7
AM		 841 /* Like DTPREL16_HI, but adjust for low 16 bits. */
842 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH		 843 16, /* rightshift */
844 1, /* size (0 = byte, 1 = short, 2 = long) */
845 16, /* bitsize */
b34976b6 846 FALSE, /* pc_relative */
252b5132
RH		 847 0, /* bitpos */
848 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 849 ppc_elf_unhandled_reloc, /* special_function */
850 "R_PPC_DTPREL16_HA", /* name */
b34976b6 851 FALSE, /* partial_inplace */
252b5132
RH		 852 0, /* src_mask */
853 0xffff, /* dst_mask */
b34976b6 854 FALSE), /* pcrel_offset */
252b5132 855
7619e7c7
AM		 856 /* Computes a tp-relative displacement, the difference between the value of
857 sym+add and the value of the thread pointer (r13). */
858 HOWTO (R_PPC_TPREL32,
859 0, /* rightshift */
860 2, /* size (0 = byte, 1 = short, 2 = long) */
861 32, /* bitsize */
862 FALSE, /* pc_relative */
863 0, /* bitpos */
864 complain_overflow_dont, /* complain_on_overflow */
865 ppc_elf_unhandled_reloc, /* special_function */
866 "R_PPC_TPREL32", /* name */
867 FALSE, /* partial_inplace */
868 0, /* src_mask */
869 0xffffffff, /* dst_mask */
870 FALSE), /* pcrel_offset */
871
872 /* A 16 bit tprel reloc. */
873 HOWTO (R_PPC_TPREL16,
252b5132
RH		 874 0, /* rightshift */
875 1, /* size (0 = byte, 1 = short, 2 = long) */
876 16, /* bitsize */
b34976b6 877 FALSE, /* pc_relative */
252b5132 878 0, /* bitpos */
7619e7c7
AM		 879 complain_overflow_signed, /* complain_on_overflow */
880 ppc_elf_unhandled_reloc, /* special_function */
881 "R_PPC_TPREL16", /* name */
b34976b6 882 FALSE, /* partial_inplace */
252b5132
RH		 883 0, /* src_mask */
884 0xffff, /* dst_mask */
b34976b6 885 FALSE), /* pcrel_offset */
252b5132 886
7619e7c7
AM		 887 /* Like TPREL16, but no overflow. */
888 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH		 889 0, /* rightshift */
890 1, /* size (0 = byte, 1 = short, 2 = long) */
891 16, /* bitsize */
b34976b6 892 FALSE, /* pc_relative */
252b5132 893 0, /* bitpos */
7619e7c7
AM		 894 complain_overflow_dont, /* complain_on_overflow */
895 ppc_elf_unhandled_reloc, /* special_function */
896 "R_PPC_TPREL16_LO", /* name */
b34976b6 897 FALSE, /* partial_inplace */
252b5132
RH		 898 0, /* src_mask */
899 0xffff, /* dst_mask */
b34976b6 900 FALSE), /* pcrel_offset */
252b5132 901
7619e7c7
AM		 902 /* Like TPREL16_LO, but next higher group of 16 bits. */
903 HOWTO (R_PPC_TPREL16_HI,
904 16, /* rightshift */
905 1, /* size (0 = byte, 1 = short, 2 = long) */
906 16, /* bitsize */
907 FALSE, /* pc_relative */
908 0, /* bitpos */
909 complain_overflow_dont, /* complain_on_overflow */
910 ppc_elf_unhandled_reloc, /* special_function */
911 "R_PPC_TPREL16_HI", /* name */
912 FALSE, /* partial_inplace */
913 0, /* src_mask */
914 0xffff, /* dst_mask */
915 FALSE), /* pcrel_offset */
916
917 /* Like TPREL16_HI, but adjust for low 16 bits. */
918 HOWTO (R_PPC_TPREL16_HA,
919 16, /* rightshift */
920 1, /* size (0 = byte, 1 = short, 2 = long) */
921 16, /* bitsize */
922 FALSE, /* pc_relative */
923 0, /* bitpos */
924 complain_overflow_dont, /* complain_on_overflow */
925 ppc_elf_unhandled_reloc, /* special_function */
926 "R_PPC_TPREL16_HA", /* name */
927 FALSE, /* partial_inplace */
928 0, /* src_mask */
929 0xffff, /* dst_mask */
930 FALSE), /* pcrel_offset */
931
932 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
933 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
934 to the first entry. */
935 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH		 936 0, /* rightshift */
937 1, /* size (0 = byte, 1 = short, 2 = long) */
938 16, /* bitsize */
b34976b6 939 FALSE, /* pc_relative */
252b5132
RH		 940 0, /* bitpos */
941 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 942 ppc_elf_unhandled_reloc, /* special_function */
943 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 944 FALSE, /* partial_inplace */
252b5132
RH		 945 0, /* src_mask */
946 0xffff, /* dst_mask */
b34976b6 947 FALSE), /* pcrel_offset */
252b5132 948
7619e7c7
AM		 949 /* Like GOT_TLSGD16, but no overflow. */
950 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 951 0, /* rightshift */
7619e7c7 952 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 953 16, /* bitsize */
b34976b6 954 FALSE, /* pc_relative */
252b5132 955 0, /* bitpos */
7619e7c7
AM		 956 complain_overflow_dont, /* complain_on_overflow */
957 ppc_elf_unhandled_reloc, /* special_function */
958 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 959 FALSE, /* partial_inplace */
252b5132
RH		 960 0, /* src_mask */
961 0xffff, /* dst_mask */
b34976b6 962 FALSE), /* pcrel_offset */
252b5132 963
7619e7c7
AM		 964 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
965 HOWTO (R_PPC_GOT_TLSGD16_HI,
966 16, /* rightshift */
967 1, /* size (0 = byte, 1 = short, 2 = long) */
968 16, /* bitsize */
969 FALSE, /* pc_relative */
970 0, /* bitpos */
971 complain_overflow_dont, /* complain_on_overflow */
972 ppc_elf_unhandled_reloc, /* special_function */
973 "R_PPC_GOT_TLSGD16_HI", /* name */
974 FALSE, /* partial_inplace */
975 0, /* src_mask */
976 0xffff, /* dst_mask */
977 FALSE), /* pcrel_offset */
252b5132 978
7619e7c7
AM		 979 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
980 HOWTO (R_PPC_GOT_TLSGD16_HA,
981 16, /* rightshift */
982 1, /* size (0 = byte, 1 = short, 2 = long) */
983 16, /* bitsize */
984 FALSE, /* pc_relative */
985 0, /* bitpos */
986 complain_overflow_dont, /* complain_on_overflow */
987 ppc_elf_unhandled_reloc, /* special_function */
988 "R_PPC_GOT_TLSGD16_HA", /* name */
989 FALSE, /* partial_inplace */
990 0, /* src_mask */
991 0xffff, /* dst_mask */
992 FALSE), /* pcrel_offset */
993
994 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
995 with values (sym+add)@dtpmod and zero, and computes the offset to the
996 first entry. */
997 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH		 998 0, /* rightshift */
999 1, /* size (0 = byte, 1 = short, 2 = long) */
1000 16, /* bitsize */
7619e7c7 1001 FALSE, /* pc_relative */
252b5132
RH		 1002 0, /* bitpos */
1003 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 1004 ppc_elf_unhandled_reloc, /* special_function */
1005 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1006 FALSE, /* partial_inplace */
252b5132
RH		 1007 0, /* src_mask */
1008 0xffff, /* dst_mask */
b34976b6 1009 FALSE), /* pcrel_offset */
252b5132 1010
7619e7c7
AM		 1011 /* Like GOT_TLSLD16, but no overflow. */
1012 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1013 0, /* rightshift */
7619e7c7
AM		 1014 1, /* size (0 = byte, 1 = short, 2 = long) */
1015 16, /* bitsize */
b34976b6 1016 FALSE, /* pc_relative */
252b5132
RH		 1017 0, /* bitpos */
1018 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 1019 ppc_elf_unhandled_reloc, /* special_function */
1020 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1021 FALSE, /* partial_inplace */
252b5132 1022 0, /* src_mask */
7619e7c7 1023 0xffff, /* dst_mask */
b34976b6 1024 FALSE), /* pcrel_offset */
252b5132 1025
7619e7c7
AM		 1026 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1027 HOWTO (R_PPC_GOT_TLSLD16_HI,
1028 16, /* rightshift */
1029 1, /* size (0 = byte, 1 = short, 2 = long) */
1030 16, /* bitsize */
b34976b6 1031 FALSE, /* pc_relative */
252b5132
RH		 1032 0, /* bitpos */
1033 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 1034 ppc_elf_unhandled_reloc, /* special_function */
1035 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1036 FALSE, /* partial_inplace */
252b5132 1037 0, /* src_mask */
7619e7c7 1038 0xffff, /* dst_mask */
b34976b6 1039 FALSE), /* pcrel_offset */
252b5132 1040
7619e7c7
AM		 1041 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1042 HOWTO (R_PPC_GOT_TLSLD16_HA,
1043 16, /* rightshift */
1044 1, /* size (0 = byte, 1 = short, 2 = long) */
1045 16, /* bitsize */
1046 FALSE, /* pc_relative */
1047 0, /* bitpos */
1048 complain_overflow_dont, /* complain_on_overflow */
1049 ppc_elf_unhandled_reloc, /* special_function */
1050 "R_PPC_GOT_TLSLD16_HA", /* name */
1051 FALSE, /* partial_inplace */
1052 0, /* src_mask */
1053 0xffff, /* dst_mask */
1054 FALSE), /* pcrel_offset */
1055
1056 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1057 the offset to the entry. */
1058 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH		 1059 0, /* rightshift */
1060 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 16, /* bitsize */
b34976b6 1062 FALSE, /* pc_relative */
252b5132
RH		 1063 0, /* bitpos */
1064 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 1065 ppc_elf_unhandled_reloc, /* special_function */
1066 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1067 FALSE, /* partial_inplace */
252b5132
RH		 1068 0, /* src_mask */
1069 0xffff, /* dst_mask */
b34976b6 1070 FALSE), /* pcrel_offset */
252b5132 1071
7619e7c7
AM		 1072 /* Like GOT_DTPREL16, but no overflow. */
1073 HOWTO (R_PPC_GOT_DTPREL16_LO,
1074 0, /* rightshift */
1075 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 16, /* bitsize */
1077 FALSE, /* pc_relative */
1078 0, /* bitpos */
1079 complain_overflow_dont, /* complain_on_overflow */
1080 ppc_elf_unhandled_reloc, /* special_function */
1081 "R_PPC_GOT_DTPREL16_LO", /* name */
1082 FALSE, /* partial_inplace */
1083 0, /* src_mask */
1084 0xffff, /* dst_mask */
1085 FALSE), /* pcrel_offset */
252b5132 1086
7619e7c7
AM		 1087 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1088 HOWTO (R_PPC_GOT_DTPREL16_HI,
1089 16, /* rightshift */
1090 1, /* size (0 = byte, 1 = short, 2 = long) */
1091 16, /* bitsize */
1092 FALSE, /* pc_relative */
1093 0, /* bitpos */
1094 complain_overflow_dont, /* complain_on_overflow */
1095 ppc_elf_unhandled_reloc, /* special_function */
1096 "R_PPC_GOT_DTPREL16_HI", /* name */
1097 FALSE, /* partial_inplace */
1098 0, /* src_mask */
1099 0xffff, /* dst_mask */
1100 FALSE), /* pcrel_offset */
252b5132 1101
7619e7c7
AM		 1102 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1103 HOWTO (R_PPC_GOT_DTPREL16_HA,
1104 16, /* rightshift */
1105 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 16, /* bitsize */
1107 FALSE, /* pc_relative */
1108 0, /* bitpos */
1109 complain_overflow_dont, /* complain_on_overflow */
1110 ppc_elf_unhandled_reloc, /* special_function */
1111 "R_PPC_GOT_DTPREL16_HA", /* name */
1112 FALSE, /* partial_inplace */
1113 0, /* src_mask */
1114 0xffff, /* dst_mask */
1115 FALSE), /* pcrel_offset */
c3668558 1116
7619e7c7
AM		 1117 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1118 offset to the entry. */
1119 HOWTO (R_PPC_GOT_TPREL16,
1120 0, /* rightshift */
1121 1, /* size (0 = byte, 1 = short, 2 = long) */
1122 16, /* bitsize */
1123 FALSE, /* pc_relative */
1124 0, /* bitpos */
1125 complain_overflow_signed, /* complain_on_overflow */
1126 ppc_elf_unhandled_reloc, /* special_function */
1127 "R_PPC_GOT_TPREL16", /* name */
1128 FALSE, /* partial_inplace */
1129 0, /* src_mask */
1130 0xffff, /* dst_mask */
1131 FALSE), /* pcrel_offset */
1132
1133 /* Like GOT_TPREL16, but no overflow. */
1134 HOWTO (R_PPC_GOT_TPREL16_LO,
1135 0, /* rightshift */
1136 1, /* size (0 = byte, 1 = short, 2 = long) */
1137 16, /* bitsize */
1138 FALSE, /* pc_relative */
1139 0, /* bitpos */
1140 complain_overflow_dont, /* complain_on_overflow */
1141 ppc_elf_unhandled_reloc, /* special_function */
1142 "R_PPC_GOT_TPREL16_LO", /* name */
1143 FALSE, /* partial_inplace */
1144 0, /* src_mask */
1145 0xffff, /* dst_mask */
1146 FALSE), /* pcrel_offset */
1147
1148 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1149 HOWTO (R_PPC_GOT_TPREL16_HI,
1150 16, /* rightshift */
1151 1, /* size (0 = byte, 1 = short, 2 = long) */
1152 16, /* bitsize */
1153 FALSE, /* pc_relative */
1154 0, /* bitpos */
1155 complain_overflow_dont, /* complain_on_overflow */
1156 ppc_elf_unhandled_reloc, /* special_function */
1157 "R_PPC_GOT_TPREL16_HI", /* name */
1158 FALSE, /* partial_inplace */
1159 0, /* src_mask */
1160 0xffff, /* dst_mask */
1161 FALSE), /* pcrel_offset */
1162
1163 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1164 HOWTO (R_PPC_GOT_TPREL16_HA,
1165 16, /* rightshift */
1166 1, /* size (0 = byte, 1 = short, 2 = long) */
1167 16, /* bitsize */
1168 FALSE, /* pc_relative */
1169 0, /* bitpos */
1170 complain_overflow_dont, /* complain_on_overflow */
1171 ppc_elf_unhandled_reloc, /* special_function */
1172 "R_PPC_GOT_TPREL16_HA", /* name */
1173 FALSE, /* partial_inplace */
1174 0, /* src_mask */
1175 0xffff, /* dst_mask */
1176 FALSE), /* pcrel_offset */
1177
1178 /* The remaining relocs are from the Embedded ELF ABI, and are not
1179 in the SVR4 ELF ABI. */
1180
1181 /* 32 bit value resulting from the addend minus the symbol. */
1182 HOWTO (R_PPC_EMB_NADDR32, /* type */
1183 0, /* rightshift */
1184 2, /* size (0 = byte, 1 = short, 2 = long) */
1185 32, /* bitsize */
1186 FALSE, /* pc_relative */
1187 0, /* bitpos */
1188 complain_overflow_bitfield, /* complain_on_overflow */
1189 bfd_elf_generic_reloc, /* special_function */
1190 "R_PPC_EMB_NADDR32", /* name */
1191 FALSE, /* partial_inplace */
1192 0, /* src_mask */
1193 0xffffffff, /* dst_mask */
1194 FALSE), /* pcrel_offset */
1195
1196 /* 16 bit value resulting from the addend minus the symbol. */
1197 HOWTO (R_PPC_EMB_NADDR16, /* type */
1198 0, /* rightshift */
1199 1, /* size (0 = byte, 1 = short, 2 = long) */
1200 16, /* bitsize */
1201 FALSE, /* pc_relative */
1202 0, /* bitpos */
1203 complain_overflow_bitfield, /* complain_on_overflow */
1204 bfd_elf_generic_reloc, /* special_function */
1205 "R_PPC_EMB_NADDR16", /* name */
1206 FALSE, /* partial_inplace */
1207 0, /* src_mask */
1208 0xffff, /* dst_mask */
1209 FALSE), /* pcrel_offset */
1210
1211 /* 16 bit value resulting from the addend minus the symbol. */
1212 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1213 0, /* rightshift */
1214 1, /* size (0 = byte, 1 = short, 2 = long) */
1215 16, /* bitsize */
1216 FALSE, /* pc_relative */
1217 0, /* bitpos */
1218 complain_overflow_dont,/* complain_on_overflow */
1219 bfd_elf_generic_reloc, /* special_function */
1220 "R_PPC_EMB_ADDR16_LO", /* name */
1221 FALSE, /* partial_inplace */
1222 0, /* src_mask */
1223 0xffff, /* dst_mask */
1224 FALSE), /* pcrel_offset */
1225
1226 /* The high order 16 bits of the addend minus the symbol. */
1227 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1228 16, /* rightshift */
1229 1, /* size (0 = byte, 1 = short, 2 = long) */
1230 16, /* bitsize */
1231 FALSE, /* pc_relative */
1232 0, /* bitpos */
1233 complain_overflow_dont, /* complain_on_overflow */
1234 bfd_elf_generic_reloc, /* special_function */
1235 "R_PPC_EMB_NADDR16_HI", /* name */
1236 FALSE, /* partial_inplace */
1237 0, /* src_mask */
1238 0xffff, /* dst_mask */
1239 FALSE), /* pcrel_offset */
1240
1241 /* The high order 16 bits of the result of the addend minus the address,
1242 plus 1 if the contents of the low 16 bits, treated as a signed number,
1243 is negative. */
1244 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1245 16, /* rightshift */
1246 1, /* size (0 = byte, 1 = short, 2 = long) */
1247 16, /* bitsize */
1248 FALSE, /* pc_relative */
1249 0, /* bitpos */
1250 complain_overflow_dont, /* complain_on_overflow */
25dbc73a
AM		 1251 ppc_elf_addr16_ha_reloc, /* special_function */
1252 "R_PPC_EMB_NADDR16_HA", /* name */
1253 FALSE, /* partial_inplace */
1254 0, /* src_mask */
1255 0xffff, /* dst_mask */
1256 FALSE), /* pcrel_offset */
1257
1258 /* 16 bit value resulting from allocating a 4 byte word to hold an
1259 address in the .sdata section, and returning the offset from
1260 _SDA_BASE_ for that relocation. */
1261 HOWTO (R_PPC_EMB_SDAI16, /* type */
1262 0, /* rightshift */
1263 1, /* size (0 = byte, 1 = short, 2 = long) */
1264 16, /* bitsize */
1265 FALSE, /* pc_relative */
1266 0, /* bitpos */
1267 complain_overflow_bitfield, /* complain_on_overflow */
1268 bfd_elf_generic_reloc, /* special_function */
1269 "R_PPC_EMB_SDAI16", /* name */
1270 FALSE, /* partial_inplace */
1271 0, /* src_mask */
1272 0xffff, /* dst_mask */
1273 FALSE), /* pcrel_offset */
1274
1275 /* 16 bit value resulting from allocating a 4 byte word to hold an
1276 address in the .sdata2 section, and returning the offset from
1277 _SDA2_BASE_ for that relocation. */
1278 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1279 0, /* rightshift */
1280 1, /* size (0 = byte, 1 = short, 2 = long) */
1281 16, /* bitsize */
1282 FALSE, /* pc_relative */
1283 0, /* bitpos */
1284 complain_overflow_bitfield, /* complain_on_overflow */
1285 bfd_elf_generic_reloc, /* special_function */
1286 "R_PPC_EMB_SDA2I16", /* name */
1287 FALSE, /* partial_inplace */
1288 0, /* src_mask */
1289 0xffff, /* dst_mask */
1290 FALSE), /* pcrel_offset */
1291
1292 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1293 small data items. */
1294 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1295 0, /* rightshift */
1296 1, /* size (0 = byte, 1 = short, 2 = long) */
1297 16, /* bitsize */
1298 FALSE, /* pc_relative */
1299 0, /* bitpos */
1300 complain_overflow_signed, /* complain_on_overflow */
1301 bfd_elf_generic_reloc, /* special_function */
1302 "R_PPC_EMB_SDA2REL", /* name */
1303 FALSE, /* partial_inplace */
1304 0, /* src_mask */
1305 0xffff, /* dst_mask */
1306 FALSE), /* pcrel_offset */
1307
1308 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1309 signed offset from the appropriate base, and filling in the register
1310 field with the appropriate register (0, 2, or 13). */
1311 HOWTO (R_PPC_EMB_SDA21, /* type */
1312 0, /* rightshift */
1313 2, /* size (0 = byte, 1 = short, 2 = long) */
1314 16, /* bitsize */
1315 FALSE, /* pc_relative */
1316 0, /* bitpos */
1317 complain_overflow_signed, /* complain_on_overflow */
1318 bfd_elf_generic_reloc, /* special_function */
1319 "R_PPC_EMB_SDA21", /* name */
1320 FALSE, /* partial_inplace */
1321 0, /* src_mask */
1322 0xffff, /* dst_mask */
1323 FALSE), /* pcrel_offset */
1324
1325 /* Relocation not handled: R_PPC_EMB_MRKREF */
1326 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1327 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1328 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1329 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1330 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1331
1332 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1333 in the 16 bit signed offset from the appropriate base, and filling in the
1334 register field with the appropriate register (0, 2, or 13). */
1335 HOWTO (R_PPC_EMB_RELSDA, /* type */
1336 0, /* rightshift */
1337 1, /* size (0 = byte, 1 = short, 2 = long) */
1338 16, /* bitsize */
1339 TRUE, /* pc_relative */
1340 0, /* bitpos */
1341 complain_overflow_signed, /* complain_on_overflow */
1342 bfd_elf_generic_reloc, /* special_function */
1343 "R_PPC_EMB_RELSDA", /* name */
1344 FALSE, /* partial_inplace */
1345 0, /* src_mask */
1346 0xffff, /* dst_mask */
1347 FALSE), /* pcrel_offset */
1348
d7128ce4
AM		 1349 /* A 16 bit relative relocation. */
1350 HOWTO (R_PPC_REL16, /* type */
1351 0, /* rightshift */
1352 1, /* size (0 = byte, 1 = short, 2 = long) */
1353 16, /* bitsize */
1354 TRUE, /* pc_relative */
1355 0, /* bitpos */
1356 complain_overflow_bitfield, /* complain_on_overflow */
1357 bfd_elf_generic_reloc, /* special_function */
1358 "R_PPC_REL16", /* name */
1359 FALSE, /* partial_inplace */
1360 0, /* src_mask */
1361 0xffff, /* dst_mask */
1362 TRUE), /* pcrel_offset */
1363
1364 /* A 16 bit relative relocation without overflow. */
1365 HOWTO (R_PPC_REL16_LO, /* type */
1366 0, /* rightshift */
1367 1, /* size (0 = byte, 1 = short, 2 = long) */
1368 16, /* bitsize */
1369 TRUE, /* pc_relative */
1370 0, /* bitpos */
1371 complain_overflow_dont,/* complain_on_overflow */
1372 bfd_elf_generic_reloc, /* special_function */
1373 "R_PPC_REL16_LO", /* name */
1374 FALSE, /* partial_inplace */
1375 0, /* src_mask */
1376 0xffff, /* dst_mask */
1377 TRUE), /* pcrel_offset */
1378
1379 /* The high order 16 bits of a relative address. */
1380 HOWTO (R_PPC_REL16_HI, /* type */
1381 16, /* rightshift */
1382 1, /* size (0 = byte, 1 = short, 2 = long) */
1383 16, /* bitsize */
1384 TRUE, /* pc_relative */
1385 0, /* bitpos */
1386 complain_overflow_dont, /* complain_on_overflow */
1387 bfd_elf_generic_reloc, /* special_function */
1388 "R_PPC_REL16_HI", /* name */
1389 FALSE, /* partial_inplace */
1390 0, /* src_mask */
1391 0xffff, /* dst_mask */
1392 TRUE), /* pcrel_offset */
1393
1394 /* The high order 16 bits of a relative address, plus 1 if the contents of
1395 the low 16 bits, treated as a signed number, is negative. */
1396 HOWTO (R_PPC_REL16_HA, /* type */
1397 16, /* rightshift */
1398 1, /* size (0 = byte, 1 = short, 2 = long) */
1399 16, /* bitsize */
1400 TRUE, /* pc_relative */
1401 0, /* bitpos */
1402 complain_overflow_dont, /* complain_on_overflow */
1403 ppc_elf_addr16_ha_reloc, /* special_function */
1404 "R_PPC_REL16_HA", /* name */
1405 FALSE, /* partial_inplace */
1406 0, /* src_mask */
1407 0xffff, /* dst_mask */
1408 TRUE), /* pcrel_offset */
1409
25dbc73a
AM		 1410 /* GNU extension to record C++ vtable hierarchy. */
1411 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1412 0, /* rightshift */
1413 0, /* size (0 = byte, 1 = short, 2 = long) */
1414 0, /* bitsize */
1415 FALSE, /* pc_relative */
1416 0, /* bitpos */
1417 complain_overflow_dont, /* complain_on_overflow */
1418 NULL, /* special_function */
1419 "R_PPC_GNU_VTINHERIT", /* name */
1420 FALSE, /* partial_inplace */
1421 0, /* src_mask */
1422 0, /* dst_mask */
1423 FALSE), /* pcrel_offset */
1424
1425 /* GNU extension to record C++ vtable member usage. */
1426 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1427 0, /* rightshift */
1428 0, /* size (0 = byte, 1 = short, 2 = long) */
1429 0, /* bitsize */
1430 FALSE, /* pc_relative */
1431 0, /* bitpos */
1432 complain_overflow_dont, /* complain_on_overflow */
1433 NULL, /* special_function */
1434 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM		 1435 FALSE, /* partial_inplace */
1436 0, /* src_mask */
25dbc73a 1437 0, /* dst_mask */
7619e7c7
AM		 1438 FALSE), /* pcrel_offset */
1439
25dbc73a
AM		 1440 /* Phony reloc to handle AIX style TOC entries. */
1441 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM		 1442 0, /* rightshift */
1443 1, /* size (0 = byte, 1 = short, 2 = long) */
1444 16, /* bitsize */
1445 FALSE, /* pc_relative */
1446 0, /* bitpos */
25dbc73a 1447 complain_overflow_signed, /* complain_on_overflow */
7619e7c7 1448 bfd_elf_generic_reloc, /* special_function */
25dbc73a 1449 "R_PPC_TOC16", /* name */
7619e7c7
AM		 1450 FALSE, /* partial_inplace */
1451 0, /* src_mask */
1452 0xffff, /* dst_mask */
1453 FALSE), /* pcrel_offset */
25dbc73a
AM		 1454};
1455\f
1456/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1457
1458static void
1459ppc_elf_howto_init (void)
1460{
1461 unsigned int i, type;
1462
1463 for (i = 0;
1464 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1465 i++)
1466 {
1467 type = ppc_elf_howto_raw[i].type;
1468 if (type >= (sizeof (ppc_elf_howto_table)
1469 / sizeof (ppc_elf_howto_table[0])))
1470 abort ();
1471 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1472 }
1473}
1474
1475static reloc_howto_type *
1476ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1477 bfd_reloc_code_real_type code)
1478{
1479 enum elf_ppc_reloc_type r;
1480
1481 /* Initialize howto table if not already done. */
1482 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1483 ppc_elf_howto_init ();
1484
1485 switch (code)
1486 {
1487 default:
1488 return NULL;
1489
1490 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1491 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1492 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1493 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1494 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1495 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1496 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1497 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1498 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1499 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1500 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1501 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1502 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1503 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1504 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1505 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1506 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1507 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1508 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1509 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1510 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1511 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1512 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1513 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1514 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1515 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1516 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1517 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1518 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1519 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1520 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1521 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1522 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1523 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1524 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1525 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
1526 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1527 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1528 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1529 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1530 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1531 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1532 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1533 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1534 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1535 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1536 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1537 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1538 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1539 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1540 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1541 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1542 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1543 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1544 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1545 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1546 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1547 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1548 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1549 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1550 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1551 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1552 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1553 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1554 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1555 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1556 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1557 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1558 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1559 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1560 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1561 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1562 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1563 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1564 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1565 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1566 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1567 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1568 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
d7128ce4
AM		 1569 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1570 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1571 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1572 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
25dbc73a
AM		 1573 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1574 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1575 }
1576
1577 return ppc_elf_howto_table[r];
1578};
1579
1580/* Set the howto pointer for a PowerPC ELF reloc. */
1581
1582static void
1583ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1584 arelent *cache_ptr,
1585 Elf_Internal_Rela *dst)
1586{
1587 /* Initialize howto table if not already done. */
1588 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1589 ppc_elf_howto_init ();
1590
1591 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1592 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1593}
1594
d7128ce4 1595/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM		 1596
1597static bfd_reloc_status_type
1598ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1599 arelent *reloc_entry,
1600 asymbol *symbol,
1601 void *data ATTRIBUTE_UNUSED,
1602 asection *input_section,
1603 bfd *output_bfd,
1604 char **error_message ATTRIBUTE_UNUSED)
1605{
1606 bfd_vma relocation;
1607
1608 if (output_bfd != NULL)
1609 {
1610 reloc_entry->address += input_section->output_offset;
1611 return bfd_reloc_ok;
1612 }
1613
1614 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1615 return bfd_reloc_outofrange;
1616
1617 if (bfd_is_com_section (symbol->section))
1618 relocation = 0;
1619 else
1620 relocation = symbol->value;
1621
1622 relocation += symbol->section->output_section->vma;
1623 relocation += symbol->section->output_offset;
1624 relocation += reloc_entry->addend;
d7128ce4
AM		 1625 if (reloc_entry->howto->pc_relative)
1626 relocation -= reloc_entry->address;
25dbc73a
AM		 1627
1628 reloc_entry->addend += (relocation & 0x8000) << 1;
1629
1630 return bfd_reloc_continue;
1631}
1632
1633static bfd_reloc_status_type
1634ppc_elf_unhandled_reloc (bfd *abfd,
1635 arelent *reloc_entry,
1636 asymbol *symbol,
1637 void *data,
1638 asection *input_section,
1639 bfd *output_bfd,
1640 char **error_message)
1641{
1642 /* If this is a relocatable link (output_bfd test tells us), just
1643 call the generic function. Any adjustment will be done at final
1644 link time. */
1645 if (output_bfd != NULL)
1646 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1647 input_section, output_bfd, error_message);
1648
1649 if (error_message != NULL)
1650 {
1651 static char buf[60];
1652 sprintf (buf, _("generic linker can't handle %s"),
1653 reloc_entry->howto->name);
1654 *error_message = buf;
1655 }
1656 return bfd_reloc_dangerous;
1657}
1658\f
1659/* Sections created by the linker. */
1660
1661typedef struct elf_linker_section
1662{
c9a2f333 1663 /* Pointer to the bfd section. */
25dbc73a 1664 asection *section;
c9a2f333
AM		 1665 /* Section name. */
1666 const char *name;
1667 /* Associated bss section name. */
1668 const char *bss_name;
1669 /* Associated symbol name. */
1670 const char *sym_name;
046183de
AM		 1671 /* Associated symbol. */
1672 struct elf_link_hash_entry *sym;
25dbc73a
AM		 1673} elf_linker_section_t;
1674
1675/* Linked list of allocated pointer entries. This hangs off of the
1676 symbol lists, and provides allows us to return different pointers,
1677 based on different addend's. */
1678
1679typedef struct elf_linker_section_pointers
1680{
1681 /* next allocated pointer for this symbol */
1682 struct elf_linker_section_pointers *next;
1683 /* offset of pointer from beginning of section */
1684 bfd_vma offset;
1685 /* addend used */
1686 bfd_vma addend;
1687 /* which linker section this is */
1688 elf_linker_section_t *lsect;
25dbc73a
AM		 1689} elf_linker_section_pointers_t;
1690
1691struct ppc_elf_obj_tdata
1692{
1693 struct elf_obj_tdata elf;
1694
1695 /* A mapping from local symbols to offsets into the various linker
1696 sections added. This is index by the symbol index. */
1697 elf_linker_section_pointers_t **linker_section_pointers;
1698};
1699
1700#define ppc_elf_tdata(bfd) \
1701 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 1702
25dbc73a
AM		 1703#define elf_local_ptr_offsets(bfd) \
1704 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 1705
25dbc73a 1706/* Override the generic function because we store some extras. */
7619e7c7 1707
25dbc73a
AM		 1708static bfd_boolean
1709ppc_elf_mkobject (bfd *abfd)
1710{
1711 bfd_size_type amt = sizeof (struct ppc_elf_obj_tdata);
1712 abfd->tdata.any = bfd_zalloc (abfd, amt);
1713 if (abfd->tdata.any == NULL)
1714 return FALSE;
1715 return TRUE;
1716}
7619e7c7 1717
25dbc73a
AM		 1718/* Fix bad default arch selected for a 32 bit input bfd when the
1719 default is 64 bit. */
7619e7c7 1720
25dbc73a
AM		 1721static bfd_boolean
1722ppc_elf_object_p (bfd *abfd)
1723{
1724 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1725 {
1726 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 1727
25dbc73a
AM		 1728 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1729 {
1730 /* Relies on arch after 64 bit default being 32 bit default. */
1731 abfd->arch_info = abfd->arch_info->next;
1732 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1733 }
1734 }
1735 return TRUE;
1736}
7619e7c7 1737
25dbc73a 1738/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 1739
25dbc73a
AM		 1740static bfd_boolean
1741ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1742{
1743 BFD_ASSERT (!elf_flags_init (abfd)
1744 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 1745
25dbc73a
AM		 1746 elf_elfheader (abfd)->e_flags = flags;
1747 elf_flags_init (abfd) = TRUE;
1748 return TRUE;
1749}
1750
25dbc73a 1751/* Support for core dump NOTE sections. */
deaaf2f3 1752
b34976b6 1753static bfd_boolean
25dbc73a 1754ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 1755{
25dbc73a
AM		 1756 int offset;
1757 unsigned int size;
252b5132 1758
25dbc73a
AM		 1759 switch (note->descsz)
1760 {
1761 default:
1762 return FALSE;
252b5132 1763
25dbc73a
AM		 1764 case 268: /* Linux/PPC. */
1765 /* pr_cursig */
1766 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 1767
25dbc73a
AM		 1768 /* pr_pid */
1769 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 1770
25dbc73a
AM		 1771 /* pr_reg */
1772 offset = 72;
1773 size = 192;
deaaf2f3 1774
25dbc73a
AM		 1775 break;
1776 }
deaaf2f3 1777
25dbc73a
AM		 1778 /* Make a ".reg/999" section. */
1779 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1780 size, note->descpos + offset);
1781}
252b5132 1782
25dbc73a
AM		 1783static bfd_boolean
1784ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1785{
1786 switch (note->descsz)
deaaf2f3 1787 {
25dbc73a
AM		 1788 default:
1789 return FALSE;
deaaf2f3 1790
25dbc73a
AM		 1791 case 128: /* Linux/PPC elf_prpsinfo. */
1792 elf_tdata (abfd)->core_program
1793 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1794 elf_tdata (abfd)->core_command
1795 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1796 }
9abc968f 1797
25dbc73a
AM		 1798 /* Note that for some reason, a spurious space is tacked
1799 onto the end of the args in some (at least one anyway)
1800 implementations, so strip it off if it exists. */
70bccea4 1801
25dbc73a
AM		 1802 {
1803 char *command = elf_tdata (abfd)->core_command;
1804 int n = strlen (command);
70bccea4 1805
25dbc73a
AM		 1806 if (0 < n && command[n - 1] == ' ')
1807 command[n - 1] = '\0';
1808 }
deaaf2f3 1809
25dbc73a
AM		 1810 return TRUE;
1811}
deaaf2f3 1812
25dbc73a
AM		 1813/* Return address for Ith PLT stub in section PLT, for relocation REL
1814 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 1815
25dbc73a
AM		 1816static bfd_vma
1817ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1818 const asection *plt ATTRIBUTE_UNUSED,
1819 const arelent *rel)
1820{
1821 return rel->address;
1822}
deaaf2f3 1823
25dbc73a 1824/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L		 1825 is called when bfd_section_from_shdr finds a section with an unknown
1826 type. */
deaaf2f3 1827
25dbc73a 1828static bfd_boolean
6dc132d9
L		 1829ppc_elf_section_from_shdr (bfd *abfd,
1830 Elf_Internal_Shdr *hdr,
1831 const char *name,
1832 int shindex)
25dbc73a
AM		 1833{
1834 asection *newsect;
1835 flagword flags;
d1c6de6f 1836
6dc132d9 1837 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 1838 return FALSE;
deaaf2f3 1839
25dbc73a
AM		 1840 newsect = hdr->bfd_section;
1841 flags = bfd_get_section_flags (abfd, newsect);
1842 if (hdr->sh_flags & SHF_EXCLUDE)
1843 flags |= SEC_EXCLUDE;
9abc968f 1844
25dbc73a
AM		 1845 if (hdr->sh_type == SHT_ORDERED)
1846 flags |= SEC_SORT_ENTRIES;
d1c6de6f 1847
25dbc73a
AM		 1848 bfd_set_section_flags (abfd, newsect, flags);
1849 return TRUE;
1850}
1851
1852/* Set up any other section flags and such that may be necessary. */
1853
1854static bfd_boolean
1855ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1856 Elf_Internal_Shdr *shdr,
1857 asection *asect)
1858{
d30e8e7c 1859 if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
25dbc73a
AM		 1860 shdr->sh_flags |= SHF_EXCLUDE;
1861
1862 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1863 shdr->sh_type = SHT_ORDERED;
1864
1865 return TRUE;
1866}
1867
1868/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
1869 need to bump up the number of section headers. */
1870
1871static int
a6b96beb
AM		 1872ppc_elf_additional_program_headers (bfd *abfd,
1873 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM		 1874{
1875 asection *s;
1876 int ret = 0;
d1c6de6f 1877
25dbc73a
AM		 1878 s = bfd_get_section_by_name (abfd, ".sbss2");
1879 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1880 ++ret;
d1c6de6f 1881
25dbc73a
AM		 1882 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1883 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
1884 ++ret;
deaaf2f3 1885
25dbc73a
AM		 1886 return ret;
1887}
deaaf2f3 1888
25dbc73a
AM		 1889/* Add extra PPC sections -- Note, for now, make .sbss2 and
1890 .PPC.EMB.sbss0 a normal section, and not a bss section so
1891 that the linker doesn't crater when trying to make more than
1892 2 sections. */
e656e369 1893
b35d266b 1894static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958
L		 1895{
1896 { ".plt", 4, 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
25dbc73a 1897 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
25dbc73a 1898 { ".sbss2", 6, -2, SHT_PROGBITS, SHF_ALLOC },
551b43fd
AM		 1899 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
1900 { ".sdata2", 7, -2, SHT_PROGBITS, SHF_ALLOC },
7f4d3958 1901 { ".tags", 5, 0, SHT_ORDERED, SHF_ALLOC },
25dbc73a 1902 { ".PPC.EMB.apuinfo", 16, 0, SHT_NOTE, 0 },
25dbc73a 1903 { ".PPC.EMB.sbss0", 14, 0, SHT_PROGBITS, SHF_ALLOC },
551b43fd
AM		 1904 { ".PPC.EMB.sdata0", 15, 0, SHT_PROGBITS, SHF_ALLOC },
1905 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 1906};
1907
551b43fd
AM		 1908/* This is what we want for new plt/got. */
1909static struct bfd_elf_special_section ppc_alt_plt =
1910 { ".plt", 4, 0, SHT_PROGBITS, SHF_ALLOC };
1911
1912static const struct bfd_elf_special_section *
1913ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 1914{
b35d266b 1915 const struct bfd_elf_special_section *ssect;
551b43fd
AM		 1916
1917 /* See if this is one of the special sections. */
1918 if (sec->name == NULL)
1919 return NULL;
1920
1921 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
1922 sec->use_rela_p);
1923 if (ssect != NULL)
1924 {
1925 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
1926 ssect = &ppc_alt_plt;
1927 return ssect;
1928 }
1929
1930 return _bfd_elf_get_sec_type_attr (abfd, sec);
1931}
25dbc73a
AM		 1932\f
1933/* Very simple linked list structure for recording apuinfo values. */
1934typedef struct apuinfo_list
1935{
1936 struct apuinfo_list *next;
1937 unsigned long value;
1938}
1939apuinfo_list;
e656e369 1940
25dbc73a 1941static apuinfo_list *head;
deaaf2f3 1942
deaaf2f3 1943
25dbc73a
AM		 1944static void
1945apuinfo_list_init (void)
1946{
1947 head = NULL;
1948}
9abc968f 1949
25dbc73a
AM		 1950static void
1951apuinfo_list_add (unsigned long value)
1952{
1953 apuinfo_list *entry = head;
deaaf2f3 1954
25dbc73a
AM		 1955 while (entry != NULL)
1956 {
1957 if (entry->value == value)
1958 return;
1959 entry = entry->next;
1960 }
b4a38de6 1961
25dbc73a
AM		 1962 entry = bfd_malloc (sizeof (* entry));
1963 if (entry == NULL)
1964 return;
e656e369 1965
25dbc73a
AM		 1966 entry->value = value;
1967 entry->next = head;
1968 head = entry;
1969}
9abc968f 1970
25dbc73a
AM		 1971static unsigned
1972apuinfo_list_length (void)
1973{
1974 apuinfo_list *entry;
1975 unsigned long count;
9abc968f 1976
25dbc73a
AM		 1977 for (entry = head, count = 0;
1978 entry;
1979 entry = entry->next)
1980 ++ count;
e656e369 1981
25dbc73a
AM		 1982 return count;
1983}
eea6121a 1984
25dbc73a
AM		 1985static inline unsigned long
1986apuinfo_list_element (unsigned long number)
1987{
1988 apuinfo_list * entry;
e656e369 1989
25dbc73a
AM		 1990 for (entry = head;
1991 entry && number --;
1992 entry = entry->next)
1993 ;
252b5132 1994
25dbc73a
AM		 1995 return entry ? entry->value : 0;
1996}
1997
1998static void
1999apuinfo_list_finish (void)
2000{
2001 apuinfo_list *entry;
2002
2003 for (entry = head; entry;)
252b5132 2004 {
25dbc73a
AM		 2005 apuinfo_list *next = entry->next;
2006 free (entry);
2007 entry = next;
2008 }
9abc968f 2009
25dbc73a
AM		 2010 head = NULL;
2011}
9abc968f 2012
25dbc73a
AM		 2013#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2014#define APUINFO_LABEL "APUinfo"
9abc968f 2015
25dbc73a
AM		 2016/* Scan the input BFDs and create a linked list of
2017 the APUinfo values that will need to be emitted. */
9abc968f 2018
25dbc73a
AM		 2019static void
2020ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2021{
2022 bfd *ibfd;
2023 asection *asec;
2024 char *buffer;
2025 unsigned num_input_sections;
2026 bfd_size_type output_section_size;
2027 unsigned i;
2028 unsigned num_entries;
2029 unsigned long offset;
2030 unsigned long length;
2031 const char *error_message = NULL;
9abc968f 2032
25dbc73a
AM		 2033 if (link_info == NULL)
2034 return;
9abc968f 2035
25dbc73a
AM		 2036 /* Scan the input bfds, looking for apuinfo sections. */
2037 num_input_sections = 0;
2038 output_section_size = 0;
252b5132 2039
25dbc73a 2040 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2041 {
25dbc73a
AM		 2042 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2043 if (asec)
252b5132 2044 {
25dbc73a
AM		 2045 ++ num_input_sections;
2046 output_section_size += asec->size;
252b5132 2047 }
252b5132
RH		 2048 }
2049
25dbc73a
AM		 2050 /* We need at least one input sections
2051 in order to make merging worthwhile. */
2052 if (num_input_sections < 1)
2053 return;
deaaf2f3 2054
25dbc73a
AM		 2055 /* Just make sure that the output section exists as well. */
2056 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2057 if (asec == NULL)
2058 return;
252b5132 2059
25dbc73a
AM		 2060 /* Allocate a buffer for the contents of the input sections. */
2061 buffer = bfd_malloc (output_section_size);
2062 if (buffer == NULL)
2063 return;
252b5132 2064
25dbc73a
AM		 2065 offset = 0;
2066 apuinfo_list_init ();
252b5132 2067
25dbc73a
AM		 2068 /* Read in the input sections contents. */
2069 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2070 {
25dbc73a
AM		 2071 unsigned long datum;
2072 char *ptr;
252b5132 2073
25dbc73a
AM		 2074 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2075 if (asec == NULL)
2076 continue;
252b5132 2077
25dbc73a
AM		 2078 length = asec->size;
2079 if (length < 24)
2080 {
2081 error_message = _("corrupt or empty %s section in %B");
2082 goto fail;
2083 }
252b5132 2084
25dbc73a
AM		 2085 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
2086 || (bfd_bread (buffer + offset, length, ibfd) != length))
2087 {
2088 error_message = _("unable to read in %s section from %B");
2089 goto fail;
2090 }
252b5132 2091
25dbc73a
AM		 2092 /* Process the contents of the section. */
2093 ptr = buffer + offset;
2094 error_message = _("corrupt %s section in %B");
252b5132 2095
25dbc73a
AM		 2096 /* Verify the contents of the header. Note - we have to
2097 extract the values this way in order to allow for a
2098 host whose endian-ness is different from the target. */
2099 datum = bfd_get_32 (ibfd, ptr);
2100 if (datum != sizeof APUINFO_LABEL)
2101 goto fail;
252b5132 2102
25dbc73a
AM		 2103 datum = bfd_get_32 (ibfd, ptr + 8);
2104 if (datum != 0x2)
2105 goto fail;
252b5132 2106
25dbc73a
AM		 2107 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
2108 goto fail;
252b5132 2109
25dbc73a
AM		 2110 /* Get the number of bytes used for apuinfo entries. */
2111 datum = bfd_get_32 (ibfd, ptr + 4);
2112 if (datum + 20 != length)
2113 goto fail;
2114
2115 /* Make sure that we do not run off the end of the section. */
2116 if (offset + length > output_section_size)
2117 goto fail;
2118
2119 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2120 for (i = 0; i < datum; i += 4)
2121 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
2122
2123 /* Update the offset. */
2124 offset += length;
252b5132
RH		 2125 }
2126
25dbc73a 2127 error_message = NULL;
252b5132 2128
25dbc73a
AM		 2129 /* Compute the size of the output section. */
2130 num_entries = apuinfo_list_length ();
2131 output_section_size = 20 + num_entries * 4;
252b5132 2132
25dbc73a
AM		 2133 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2134
2135 if (! bfd_set_section_size (abfd, asec, output_section_size))
2136 ibfd = abfd,
2137 error_message = _("warning: unable to set size of %s section in %B");
2138
2139 fail:
2140 free (buffer);
2141
2142 if (error_message)
2143 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2144}
252b5132 2145
25dbc73a
AM		 2146/* Prevent the output section from accumulating the input sections'
2147 contents. We have already stored this in our linked list structure. */
252b5132 2148
25dbc73a
AM		 2149static bfd_boolean
2150ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
2151 asection *asec,
2152 bfd_byte *contents ATTRIBUTE_UNUSED)
2153{
2154 return (apuinfo_list_length ()
2155 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
252b5132
RH		 2156}
2157
25dbc73a
AM		 2158/* Finally we can generate the output section. */
2159
2160static void
2161ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2162{
25dbc73a
AM		 2163 bfd_byte *buffer;
2164 asection *asec;
2165 unsigned i;
2166 unsigned num_entries;
2167 bfd_size_type length;
7619e7c7 2168
25dbc73a
AM		 2169 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2170 if (asec == NULL)
2171 return;
2172
2173 if (apuinfo_list_length () == 0)
2174 return;
2175
2176 length = asec->size;
2177 if (length < 20)
2178 return;
2179
2180 buffer = bfd_malloc (length);
2181 if (buffer == NULL)
7619e7c7 2182 {
25dbc73a
AM		 2183 (*_bfd_error_handler)
2184 (_("failed to allocate space for new APUinfo section."));
2185 return;
7619e7c7 2186 }
7619e7c7 2187
25dbc73a
AM		 2188 /* Create the apuinfo header. */
2189 num_entries = apuinfo_list_length ();
2190 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2191 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2192 bfd_put_32 (abfd, 0x2, buffer + 8);
2193 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2194
25dbc73a
AM		 2195 length = 20;
2196 for (i = 0; i < num_entries; i++)
feee612b 2197 {
25dbc73a
AM		 2198 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2199 length += 4;
feee612b 2200 }
feee612b 2201
25dbc73a
AM		 2202 if (length != asec->size)
2203 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2204
25dbc73a
AM		 2205 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2206 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2207
25dbc73a
AM		 2208 free (buffer);
2209
2210 apuinfo_list_finish ();
252b5132 2211}
25dbc73a
AM		 2212\f
2213/* The following functions are specific to the ELF linker, while
2214 functions above are used generally. They appear in this file more
2215 or less in the order in which they are called. eg.
2216 ppc_elf_check_relocs is called early in the link process,
2217 ppc_elf_finish_dynamic_sections is one of the last functions
2218 called. */
252b5132 2219
25dbc73a
AM		 2220/* The PPC linker needs to keep track of the number of relocs that it
2221 decides to copy as dynamic relocs in check_relocs for each symbol.
2222 This is so that it can later discard them if they are found to be
2223 unnecessary. We store the information in a field extending the
2224 regular ELF linker hash table. */
ae9a127f 2225
25dbc73a 2226struct ppc_elf_dyn_relocs
252b5132 2227{
25dbc73a 2228 struct ppc_elf_dyn_relocs *next;
252b5132 2229
25dbc73a
AM		 2230 /* The input section of the reloc. */
2231 asection *sec;
252b5132 2232
25dbc73a
AM		 2233 /* Total number of relocs copied for the input section. */
2234 bfd_size_type count;
252b5132 2235
25dbc73a
AM		 2236 /* Number of pc-relative relocs copied for the input section. */
2237 bfd_size_type pc_count;
2238};
252b5132 2239
a6aa5195
AM		 2240/* Track PLT entries needed for a given symbol. We might need more
2241 than one glink entry per symbol. */
2242struct plt_entry
2243{
2244 struct plt_entry *next;
2245
2246 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2247 This field stores the offset into .got2 used to initialise the
2248 GOT pointer reg. It will always be at least 32768 (and for
2249 current gcc this is the only offset used). */
2250 bfd_vma addend;
2251
2252 /* The .got2 section. */
2253 asection *sec;
2254
2255 /* PLT refcount or offset. */
2256 union
2257 {
2258 bfd_signed_vma refcount;
2259 bfd_vma offset;
2260 } plt;
2261
2262 /* .glink stub offset. */
2263 bfd_vma glink_offset;
2264};
2265
25dbc73a
AM		 2266/* Of those relocs that might be copied as dynamic relocs, this macro
2267 selects those that must be copied when linking a shared library,
2268 even when the symbol is local. */
252b5132 2269
25dbc73a
AM		 2270#define MUST_BE_DYN_RELOC(RTYPE) \
2271 ((RTYPE) != R_PPC_REL24 \
2272 && (RTYPE) != R_PPC_REL14 \
2273 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2274 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2275 && (RTYPE) != R_PPC_REL32)
252b5132 2276
25dbc73a
AM		 2277/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2278 copying dynamic variables from a shared lib into an app's dynbss
2279 section, and instead use a dynamic relocation to point into the
2280 shared lib. */
2281#define ELIMINATE_COPY_RELOCS 1
252b5132 2282
25dbc73a 2283/* PPC ELF linker hash entry. */
252b5132 2284
25dbc73a
AM		 2285struct ppc_elf_link_hash_entry
2286{
2287 struct elf_link_hash_entry elf;
252b5132 2288
25dbc73a
AM		 2289 /* If this symbol is used in the linker created sections, the processor
2290 specific backend uses this field to map the field into the offset
2291 from the beginning of the section. */
2292 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2293
25dbc73a
AM		 2294 /* Track dynamic relocs copied for this symbol. */
2295 struct ppc_elf_dyn_relocs *dyn_relocs;
252b5132 2296
25dbc73a
AM		 2297 /* Contexts in which symbol is used in the GOT (or TOC).
2298 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2299 corresponding relocs are encountered during check_relocs.
2300 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2301 indicate the corresponding GOT entry type is not needed. */
2302#define TLS_GD 1 /* GD reloc. */
2303#define TLS_LD 2 /* LD reloc. */
2304#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2305#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2306#define TLS_TLS 16 /* Any TLS reloc. */
2307#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
2308 char tls_mask;
4dc4a9a5
DJ		 2309
2310 /* Nonzero if we have seen a small data relocation referring to this
2311 symbol. */
2312 unsigned char has_sda_refs;
25dbc73a 2313};
252b5132 2314
25dbc73a
AM		 2315#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2316
4a3dc543
RS		 2317enum ppc_elf_plt_type {
2318 PLT_UNSET,
2319 PLT_OLD,
2320 PLT_NEW,
2321 PLT_VXWORKS
2322};
2323
25dbc73a
AM		 2324/* PPC ELF linker hash table. */
2325
2326struct ppc_elf_link_hash_table
2327{
2328 struct elf_link_hash_table elf;
2329
2330 /* Short-cuts to get to dynamic linker sections. */
2331 asection *got;
2332 asection *relgot;
d7128ce4 2333 asection *glink;
25dbc73a
AM		 2334 asection *plt;
2335 asection *relplt;
2336 asection *dynbss;
2337 asection *relbss;
2338 asection *dynsbss;
2339 asection *relsbss;
c9a2f333 2340 elf_linker_section_t sdata[2];
25dbc73a
AM		 2341 asection *sbss;
2342
2343 /* Shortcut to .__tls_get_addr. */
2344 struct elf_link_hash_entry *tls_get_addr;
252b5132 2345
25dbc73a
AM		 2346 /* TLS local dynamic got entry handling. */
2347 union {
2348 bfd_signed_vma refcount;
2349 bfd_vma offset;
2350 } tlsld_got;
252b5132 2351
d7128ce4
AM		 2352 /* Offset of PltResolve function in glink. */
2353 bfd_vma glink_pltresolve;
2354
3b36f7e6
AM		 2355 /* Size of reserved GOT entries. */
2356 unsigned int got_header_size;
2357 /* Non-zero if allocating the header left a gap. */
2358 unsigned int got_gap;
2359
4a3dc543
RS		 2360 /* The type of PLT we have chosen to use. */
2361 enum ppc_elf_plt_type plt_type;
2362
2363 /* Whether we can use the new PLT layout. */
2364 unsigned int can_use_new_plt:1;
d7128ce4 2365
0ba07910
AM		 2366 /* Set if we should emit symbols for stubs. */
2367 unsigned int emit_stub_syms:1;
2368
25dbc73a
AM		 2369 /* Small local sym to section mapping cache. */
2370 struct sym_sec_cache sym_sec;
9d8504b1
PB		 2371
2372 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2373 asection *srelplt2;
2374
2375 /* The .got.plt section (VxWorks only)*/
2376 asection *sgotplt;
2377
9d8504b1
PB		 2378 /* True if the target system is VxWorks. */
2379 int is_vxworks;
2380
2381 /* The size of PLT entries. */
2382 int plt_entry_size;
2383 /* The distance between adjacent PLT slots. */
2384 int plt_slot_size;
2385 /* The size of the first PLT entry. */
2386 int plt_initial_entry_size;
25dbc73a 2387};
252b5132 2388
25dbc73a 2389/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2390
25dbc73a
AM		 2391#define ppc_elf_hash_table(p) \
2392 ((struct ppc_elf_link_hash_table *) (p)->hash)
252b5132 2393
25dbc73a 2394/* Create an entry in a PPC ELF linker hash table. */
252b5132 2395
25dbc73a
AM		 2396static struct bfd_hash_entry *
2397ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2398 struct bfd_hash_table *table,
2399 const char *string)
252b5132 2400{
25dbc73a
AM		 2401 /* Allocate the structure if it has not already been allocated by a
2402 subclass. */
2403 if (entry == NULL)
2404 {
2405 entry = bfd_hash_allocate (table,
2406 sizeof (struct ppc_elf_link_hash_entry));
2407 if (entry == NULL)
2408 return entry;
2409 }
252b5132 2410
25dbc73a
AM		 2411 /* Call the allocation method of the superclass. */
2412 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2413 if (entry != NULL)
2414 {
2415 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2416 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2417 ppc_elf_hash_entry (entry)->tls_mask = 0;
2418 }
252b5132 2419
25dbc73a 2420 return entry;
252b5132 2421}
3dab13f6 2422
25dbc73a 2423/* Create a PPC ELF linker hash table. */
3dab13f6 2424
25dbc73a
AM		 2425static struct bfd_link_hash_table *
2426ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2427{
25dbc73a 2428 struct ppc_elf_link_hash_table *ret;
3dab13f6 2429
25dbc73a
AM		 2430 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2431 if (ret == NULL)
2432 return NULL;
3dab13f6 2433
66eb6687
AM		 2434 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2435 ppc_elf_link_hash_newfunc,
2436 sizeof (struct ppc_elf_link_hash_entry)))
3dab13f6 2437 {
25dbc73a
AM		 2438 free (ret);
2439 return NULL;
2440 }
58111eb7 2441
a6aa5195
AM		 2442 ret->elf.init_plt_refcount.refcount = 0;
2443 ret->elf.init_plt_refcount.glist = NULL;
2444 ret->elf.init_plt_offset.offset = 0;
2445 ret->elf.init_plt_offset.glist = NULL;
2446
c9a2f333
AM		 2447 ret->sdata[0].name = ".sdata";
2448 ret->sdata[0].sym_name = "_SDA_BASE_";
2449 ret->sdata[0].bss_name = ".sbss";
2450
2451 ret->sdata[1].name = ".sdata2";
2452 ret->sdata[1].sym_name = "_SDA2_BASE_";
2453 ret->sdata[1].bss_name = ".sbss2";
2454
9d8504b1
PB		 2455 ret->plt_entry_size = 12;
2456 ret->plt_slot_size = 8;
2457 ret->plt_initial_entry_size = 72;
2458
2459 ret->is_vxworks = 0;
2460
25dbc73a
AM		 2461 return &ret->elf.root;
2462}
3dab13f6 2463
9d8504b1 2464/* Create .got and the related sections. */
3dab13f6 2465
25dbc73a
AM		 2466static bfd_boolean
2467ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2468{
2469 struct ppc_elf_link_hash_table *htab;
2470 asection *s;
2471 flagword flags;
3dab13f6 2472
25dbc73a
AM		 2473 if (!_bfd_elf_create_got_section (abfd, info))
2474 return FALSE;
3dab13f6 2475
25dbc73a
AM		 2476 htab = ppc_elf_hash_table (info);
2477 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2478 if (s == NULL)
2479 abort ();
3dab13f6 2480
9d8504b1
PB		 2481 if (htab->is_vxworks)
2482 {
2483 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2484 if (!htab->sgotplt)
2485 abort ();
2486 }
2487 else
2488 {
2489 /* The powerpc .got has a blrl instruction in it. Mark it
2490 executable. */
2491 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2492 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2493 if (!bfd_set_section_flags (abfd, s, flags))
2494 return FALSE;
2495 }
3dab13f6 2496
3b36f7e6
AM		 2497 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2498 | SEC_LINKER_CREATED | SEC_READONLY);
2499 htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags);
25dbc73a 2500 if (!htab->relgot
25dbc73a
AM		 2501 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2502 return FALSE;
3dab13f6 2503
25dbc73a
AM		 2504 return TRUE;
2505}
3dab13f6 2506
25dbc73a
AM		 2507/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2508 to output sections (just like _bfd_elf_create_dynamic_sections has
2509 to create .dynbss and .rela.bss). */
3dab13f6 2510
25dbc73a
AM		 2511static bfd_boolean
2512ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2513{
2514 struct ppc_elf_link_hash_table *htab;
2515 asection *s;
2516 flagword flags;
3dab13f6 2517
25dbc73a 2518 htab = ppc_elf_hash_table (info);
3dab13f6 2519
25dbc73a
AM		 2520 if (htab->got == NULL
2521 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM		 2522 return FALSE;
2523
25dbc73a
AM		 2524 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2525 return FALSE;
3dab13f6 2526
d7128ce4
AM		 2527 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2528 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2529
2530 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE);
2531 htab->glink = s;
2532 if (s == NULL
2533 || !bfd_set_section_alignment (abfd, s, 4))
2534 return FALSE;
3dab13f6 2535
25dbc73a 2536 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM		 2537 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2538 SEC_ALLOC | SEC_LINKER_CREATED);
2539 htab->dynsbss = s;
3496cb2a 2540 if (s == NULL)
25dbc73a 2541 return FALSE;
3dab13f6 2542
25dbc73a
AM		 2543 if (! info->shared)
2544 {
2545 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
d7128ce4 2546 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2547 htab->relsbss = s;
25dbc73a 2548 if (s == NULL
25dbc73a
AM		 2549 || ! bfd_set_section_alignment (abfd, s, 2))
2550 return FALSE;
2551 }
3dab13f6 2552
711de32c
RS		 2553 if (htab->is_vxworks
2554 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2555 return FALSE;
9d8504b1 2556
25dbc73a
AM		 2557 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2558 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2559 if (s == NULL)
2560 abort ();
3dab13f6 2561
3b36f7e6 2562 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS		 2563 if (htab->plt_type == PLT_VXWORKS)
2564 /* The VxWorks PLT is a loaded section with contents. */
2565 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM		 2566 return bfd_set_section_flags (abfd, s, flags);
2567}
3dab13f6 2568
25dbc73a 2569/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2570
25dbc73a 2571static void
fcfa13d2 2572ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM		 2573 struct elf_link_hash_entry *dir,
2574 struct elf_link_hash_entry *ind)
2575{
2576 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2577
25dbc73a
AM		 2578 edir = (struct ppc_elf_link_hash_entry *) dir;
2579 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2580
25dbc73a
AM		 2581 if (eind->dyn_relocs != NULL)
2582 {
2583 if (edir->dyn_relocs != NULL)
3dab13f6 2584 {
25dbc73a
AM		 2585 struct ppc_elf_dyn_relocs **pp;
2586 struct ppc_elf_dyn_relocs *p;
3dab13f6 2587
fcfa13d2 2588 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM		 2589 list. Merge any entries against the same section. */
2590 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2591 {
25dbc73a
AM		 2592 struct ppc_elf_dyn_relocs *q;
2593
2594 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2595 if (q->sec == p->sec)
2596 {
2597 q->pc_count += p->pc_count;
2598 q->count += p->count;
2599 *pp = p->next;
2600 break;
2601 }
2602 if (q == NULL)
2603 pp = &p->next;
3dab13f6 2604 }
25dbc73a 2605 *pp = edir->dyn_relocs;
3dab13f6 2606 }
25dbc73a
AM		 2607
2608 edir->dyn_relocs = eind->dyn_relocs;
2609 eind->dyn_relocs = NULL;
3dab13f6 2610 }
3dab13f6 2611
25dbc73a 2612 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2613 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2614
a6aa5195
AM		 2615 /* If called to transfer flags for a weakdef during processing
2616 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2617 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2618 if (!(ELIMINATE_COPY_RELOCS
2619 && eind->elf.root.type != bfd_link_hash_indirect
2620 && edir->elf.dynamic_adjusted))
2621 edir->elf.non_got_ref |= eind->elf.non_got_ref;
2622
2623 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
2624 edir->elf.ref_regular |= eind->elf.ref_regular;
2625 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
2626 edir->elf.needs_plt |= eind->elf.needs_plt;
2627
2628 /* If we were called to copy over info for a weak sym, that's all. */
2629 if (eind->elf.root.type != bfd_link_hash_indirect)
2630 return;
2631
2632 /* Copy over the GOT refcount entries that we may have already seen to
2633 the symbol which just became indirect. */
fcfa13d2
AM		 2634 edir->elf.got.refcount += eind->elf.got.refcount;
2635 eind->elf.got.refcount = 0;
a6aa5195
AM		 2636
2637 /* And plt entries. */
2638 if (eind->elf.plt.plist != NULL)
2639 {
2640 if (edir->elf.plt.plist != NULL)
2641 {
2642 struct plt_entry **entp;
2643 struct plt_entry *ent;
2644
2645 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
2646 {
2647 struct plt_entry *dent;
2648
2649 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
2650 if (dent->sec == ent->sec && dent->addend == ent->addend)
2651 {
2652 dent->plt.refcount += ent->plt.refcount;
2653 *entp = ent->next;
2654 break;
2655 }
2656 if (dent == NULL)
2657 entp = &ent->next;
2658 }
2659 *entp = edir->elf.plt.plist;
2660 }
2661
2662 edir->elf.plt.plist = eind->elf.plt.plist;
2663 eind->elf.plt.plist = NULL;
2664 }
2665
fcfa13d2 2666 if (eind->elf.dynindx != -1)
25dbc73a 2667 {
fcfa13d2
AM		 2668 if (edir->elf.dynindx != -1)
2669 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2670 edir->elf.dynstr_index);
a6aa5195
AM		 2671 edir->elf.dynindx = eind->elf.dynindx;
2672 edir->elf.dynstr_index = eind->elf.dynstr_index;
2673 eind->elf.dynindx = -1;
2674 eind->elf.dynstr_index = 0;
25dbc73a 2675 }
25dbc73a 2676}
3dab13f6 2677
8853c3d3
AM		 2678/* Return 1 if target is one of ours. */
2679
2680static bfd_boolean
2681is_ppc_elf_target (const struct bfd_target *targ)
2682{
2683 extern const bfd_target bfd_elf32_powerpc_vec;
7c492719 2684 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
8853c3d3
AM		 2685 extern const bfd_target bfd_elf32_powerpcle_vec;
2686
7c492719
RS		 2687 return (targ == &bfd_elf32_powerpc_vec
2688 || targ == &bfd_elf32_powerpc_vxworks_vec
2689 || targ == &bfd_elf32_powerpcle_vec);
8853c3d3
AM		 2690}
2691
25dbc73a
AM		 2692/* Hook called by the linker routine which adds symbols from an object
2693 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 2694
25dbc73a
AM		 2695static bfd_boolean
2696ppc_elf_add_symbol_hook (bfd *abfd,
2697 struct bfd_link_info *info,
2698 Elf_Internal_Sym *sym,
2699 const char **namep ATTRIBUTE_UNUSED,
2700 flagword *flagsp ATTRIBUTE_UNUSED,
2701 asection **secp,
2702 bfd_vma *valp)
2703{
2704 if (sym->st_shndx == SHN_COMMON
2705 && !info->relocatable
2706 && sym->st_size <= elf_gp_size (abfd)
d2663f46 2707 && is_ppc_elf_target (info->hash->creator))
25dbc73a
AM		 2708 {
2709 /* Common symbols less than or equal to -G nn bytes are automatically
2710 put into .sbss. */
2711 struct ppc_elf_link_hash_table *htab;
3dab13f6 2712
25dbc73a
AM		 2713 htab = ppc_elf_hash_table (info);
2714 if (htab->sbss == NULL)
2715 {
644285ef 2716 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 2717
644285ef
AM		 2718 if (!htab->elf.dynobj)
2719 htab->elf.dynobj = abfd;
2720
3496cb2a
L		 2721 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2722 ".sbss",
2723 flags);
2724 if (htab->sbss == NULL)
25dbc73a 2725 return FALSE;
3dab13f6 2726 }
3dab13f6 2727
25dbc73a
AM		 2728 *secp = htab->sbss;
2729 *valp = sym->st_size;
2730 }
3dab13f6 2731
25dbc73a 2732 return TRUE;
3dab13f6
AM		 2733}
2734\f
046183de
AM		 2735static bfd_boolean
2736create_sdata_sym (struct ppc_elf_link_hash_table *htab,
2737 elf_linker_section_t *lsect)
2738{
2739 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
2740 TRUE, FALSE, TRUE);
2741 if (lsect->sym == NULL)
2742 return FALSE;
2743 if (lsect->sym->root.type == bfd_link_hash_new)
2744 lsect->sym->non_elf = 0;
2745 lsect->sym->ref_regular = 1;
2746 return TRUE;
2747}
2748
c9a2f333 2749/* Create a special linker section. */
25dbc73a 2750
c9a2f333 2751static bfd_boolean
55fd94b0
AM		 2752ppc_elf_create_linker_section (bfd *abfd,
2753 struct bfd_link_info *info,
c9a2f333
AM		 2754 flagword flags,
2755 elf_linker_section_t *lsect)
252b5132 2756{
58111eb7 2757 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 2758 asection *s;
58111eb7 2759
c9a2f333
AM		 2760 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2761 | SEC_LINKER_CREATED);
58111eb7
AM		 2762
2763 /* Record the first bfd that needs the special sections. */
2764 if (!htab->elf.dynobj)
2765 htab->elf.dynobj = abfd;
2766
3496cb2a
L		 2767 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
2768 lsect->name,
2769 flags);
76750a2f 2770 if (s == NULL
76750a2f 2771 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 2772 return FALSE;
76750a2f 2773 lsect->section = s;
58111eb7 2774
046183de 2775 return create_sdata_sym (htab, lsect);
252b5132 2776}
252b5132 2777
25dbc73a
AM		 2778/* Find a linker generated pointer with a given addend and type. */
2779
2780static elf_linker_section_pointers_t *
2781elf_find_pointer_linker_section
2782 (elf_linker_section_pointers_t *linker_pointers,
2783 bfd_vma addend,
2784 elf_linker_section_t *lsect)
252b5132 2785{
25dbc73a
AM		 2786 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2787 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2788 return linker_pointers;
252b5132 2789
25dbc73a
AM		 2790 return NULL;
2791}
2792
2793/* Allocate a pointer to live in a linker created section. */
2794
2795static bfd_boolean
2796elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM		 2797 elf_linker_section_t *lsect,
2798 struct elf_link_hash_entry *h,
2799 const Elf_Internal_Rela *rel)
2800{
2801 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2802 elf_linker_section_pointers_t *linker_section_ptr;
2803 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2804 bfd_size_type amt;
2805
2806 BFD_ASSERT (lsect != NULL);
2807
2808 /* Is this a global symbol? */
2809 if (h != NULL)
2810 {
2811 struct ppc_elf_link_hash_entry *eh;
2812
2813 /* Has this symbol already been allocated? If so, our work is done. */
2814 eh = (struct ppc_elf_link_hash_entry *) h;
2815 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2816 rel->r_addend,
2817 lsect))
2818 return TRUE;
2819
2820 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM		 2821 }
2822 else
2823 {
2824 /* Allocation of a pointer to a local symbol. */
2825 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2826
2827 /* Allocate a table to hold the local symbols if first time. */
2828 if (!ptr)
2829 {
2830 unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
2831
2832 amt = num_symbols;
2833 amt *= sizeof (elf_linker_section_pointers_t *);
2834 ptr = bfd_zalloc (abfd, amt);
2835
2836 if (!ptr)
2837 return FALSE;
2838
2839 elf_local_ptr_offsets (abfd) = ptr;
2840 }
2841
2842 /* Has this symbol already been allocated? If so, our work is done. */
2843 if (elf_find_pointer_linker_section (ptr[r_symndx],
2844 rel->r_addend,
2845 lsect))
2846 return TRUE;
252b5132 2847
25dbc73a 2848 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 2849 }
41fcb14e 2850
25dbc73a
AM		 2851 /* Allocate space for a pointer in the linker section, and allocate
2852 a new pointer record from internal memory. */
2853 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2854 amt = sizeof (elf_linker_section_pointers_t);
2855 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 2856
25dbc73a 2857 if (!linker_section_ptr)
7619e7c7 2858 return FALSE;
41fcb14e 2859
25dbc73a
AM		 2860 linker_section_ptr->next = *ptr_linker_section_ptr;
2861 linker_section_ptr->addend = rel->r_addend;
2862 linker_section_ptr->lsect = lsect;
25dbc73a 2863 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 2864
25dbc73a
AM		 2865 linker_section_ptr->offset = lsect->section->size;
2866 lsect->section->size += 4;
7619e7c7 2867
25dbc73a
AM		 2868#ifdef DEBUG
2869 fprintf (stderr,
2870 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2871 lsect->name, (long) linker_section_ptr->offset,
2872 (long) lsect->section->size);
2873#endif
7619e7c7
AM		 2874
2875 return TRUE;
41fcb14e
AM		 2876}
2877
b34976b6 2878static bfd_boolean
25dbc73a
AM		 2879update_local_sym_info (bfd *abfd,
2880 Elf_Internal_Shdr *symtab_hdr,
2881 unsigned long r_symndx,
2882 int tls_type)
252b5132 2883{
25dbc73a
AM		 2884 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
2885 char *local_got_tls_masks;
252b5132 2886
25dbc73a 2887 if (local_got_refcounts == NULL)
252b5132 2888 {
25dbc73a
AM		 2889 bfd_size_type size = symtab_hdr->sh_info;
2890
2891 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
2892 local_got_refcounts = bfd_zalloc (abfd, size);
2893 if (local_got_refcounts == NULL)
b34976b6 2894 return FALSE;
25dbc73a 2895 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 2896 }
41fcb14e 2897
25dbc73a
AM		 2898 local_got_refcounts[r_symndx] += 1;
2899 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
2900 local_got_tls_masks[r_symndx] |= tls_type;
2901 return TRUE;
2902}
41fcb14e 2903
a6aa5195
AM		 2904static bfd_boolean
2905update_plt_info (bfd *abfd, struct elf_link_hash_entry *h,
2906 asection *sec, bfd_vma addend)
2907{
2908 struct plt_entry *ent;
2909
2910 if (addend < 32768)
2911 sec = NULL;
2912 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2913 if (ent->sec == sec && ent->addend == addend)
2914 break;
2915 if (ent == NULL)
2916 {
2917 bfd_size_type amt = sizeof (*ent);
2918 ent = bfd_alloc (abfd, amt);
2919 if (ent == NULL)
2920 return FALSE;
2921 ent->next = h->plt.plist;
2922 ent->sec = sec;
2923 ent->addend = addend;
2924 ent->plt.refcount = 0;
2925 h->plt.plist = ent;
2926 }
2927 ent->plt.refcount += 1;
2928 return TRUE;
2929}
2930
2931static struct plt_entry *
2932find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend)
2933{
2934 struct plt_entry *ent;
2935
2936 if (addend < 32768)
2937 sec = NULL;
2938 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
2939 if (ent->sec == sec && ent->addend == addend)
2940 break;
2941 return ent;
2942}
2943
25dbc73a
AM		 2944static void
2945bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
2946{
2947 (*_bfd_error_handler)
2948 (_("%B: relocation %s cannot be used when making a shared object"),
2949 abfd,
2950 ppc_elf_howto_table[r_type]->name);
2951 bfd_set_error (bfd_error_bad_value);
252b5132
RH		 2952}
2953
25dbc73a
AM		 2954/* Look through the relocs for a section during the first phase, and
2955 allocate space in the global offset table or procedure linkage
2956 table. */
252b5132 2957
b34976b6 2958static bfd_boolean
25dbc73a
AM		 2959ppc_elf_check_relocs (bfd *abfd,
2960 struct bfd_link_info *info,
2961 asection *sec,
2962 const Elf_Internal_Rela *relocs)
252b5132 2963{
7619e7c7 2964 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM		 2965 Elf_Internal_Shdr *symtab_hdr;
2966 struct elf_link_hash_entry **sym_hashes;
2967 const Elf_Internal_Rela *rel;
2968 const Elf_Internal_Rela *rel_end;
a6aa5195 2969 asection *got2, *sreloc;
25dbc73a
AM		 2970
2971 if (info->relocatable)
2972 return TRUE;
252b5132 2973
c87b5a93
AM		 2974 /* Don't do anything special with non-loaded, non-alloced sections.
2975 In particular, any relocs in such sections should not affect GOT
2976 and PLT reference counting (ie. we don't allow them to create GOT
2977 or PLT entries), there's no possibility or desire to optimize TLS
2978 relocs, and there's not much point in propagating relocs to shared
2979 libs that the dynamic linker won't relocate. */
2980 if ((sec->flags & SEC_ALLOC) == 0)
2981 return TRUE;
2982
252b5132 2983#ifdef DEBUG
25dbc73a
AM		 2984 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
2985 sec, abfd);
252b5132
RH		 2986#endif
2987
25dbc73a
AM		 2988 /* Initialize howto table if not already done. */
2989 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2990 ppc_elf_howto_init ();
2991
7619e7c7 2992 htab = ppc_elf_hash_table (info);
25dbc73a
AM		 2993 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2994 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 2995 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 2996 sreloc = NULL;
2997
2998 rel_end = relocs + sec->reloc_count;
2999 for (rel = relocs; rel < rel_end; rel++)
3000 {
3001 unsigned long r_symndx;
3002 enum elf_ppc_reloc_type r_type;
3003 struct elf_link_hash_entry *h;
3004 int tls_type = 0;
3005
3006 r_symndx = ELF32_R_SYM (rel->r_info);
3007 if (r_symndx < symtab_hdr->sh_info)
3008 h = NULL;
3009 else
973a3492
L		 3010 {
3011 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3012 while (h->root.type == bfd_link_hash_indirect
3013 || h->root.type == bfd_link_hash_warning)
3014 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3015 }
25dbc73a
AM		 3016
3017 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3018 This shows up in particular in an R_PPC_ADDR32 in the eabi
3019 startup code. */
3b36f7e6
AM		 3020 if (h != NULL
3021 && htab->got == NULL
3022 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3023 {
3b36f7e6
AM		 3024 if (htab->elf.dynobj == NULL)
3025 htab->elf.dynobj = abfd;
3026 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3027 return FALSE;
3028 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3029 }
252b5132 3030
25dbc73a
AM		 3031 r_type = ELF32_R_TYPE (rel->r_info);
3032 switch (r_type)
3033 {
3034 case R_PPC_GOT_TLSLD16:
3035 case R_PPC_GOT_TLSLD16_LO:
3036 case R_PPC_GOT_TLSLD16_HI:
3037 case R_PPC_GOT_TLSLD16_HA:
3038 htab->tlsld_got.refcount += 1;
3039 tls_type = TLS_TLS | TLS_LD;
3040 goto dogottls;
252b5132 3041
25dbc73a
AM		 3042 case R_PPC_GOT_TLSGD16:
3043 case R_PPC_GOT_TLSGD16_LO:
3044 case R_PPC_GOT_TLSGD16_HI:
3045 case R_PPC_GOT_TLSGD16_HA:
3046 tls_type = TLS_TLS | TLS_GD;
3047 goto dogottls;
3048
3049 case R_PPC_GOT_TPREL16:
3050 case R_PPC_GOT_TPREL16_LO:
3051 case R_PPC_GOT_TPREL16_HI:
3052 case R_PPC_GOT_TPREL16_HA:
3053 if (info->shared)
3054 info->flags |= DF_STATIC_TLS;
3055 tls_type = TLS_TLS | TLS_TPREL;
3056 goto dogottls;
3057
3058 case R_PPC_GOT_DTPREL16:
3059 case R_PPC_GOT_DTPREL16_LO:
3060 case R_PPC_GOT_DTPREL16_HI:
3061 case R_PPC_GOT_DTPREL16_HA:
3062 tls_type = TLS_TLS | TLS_DTPREL;
3063 dogottls:
3064 sec->has_tls_reloc = 1;
3065 /* Fall thru */
252b5132 3066
25dbc73a
AM		 3067 /* GOT16 relocations */
3068 case R_PPC_GOT16:
3069 case R_PPC_GOT16_LO:
3070 case R_PPC_GOT16_HI:
3071 case R_PPC_GOT16_HA:
3072 /* This symbol requires a global offset table entry. */
3073 if (htab->got == NULL)
3074 {
3075 if (htab->elf.dynobj == NULL)
3076 htab->elf.dynobj = abfd;
3077 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3078 return FALSE;
3079 }
3080 if (h != NULL)
3081 {
3082 h->got.refcount += 1;
3083 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3084 }
3085 else
3086 /* This is a global offset table entry for a local symbol. */
3087 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3088 return FALSE;
3089 break;
252b5132 3090
25dbc73a
AM		 3091 /* Indirect .sdata relocation. */
3092 case R_PPC_EMB_SDAI16:
3093 if (info->shared)
3094 {
3095 bad_shared_reloc (abfd, r_type);
3096 return FALSE;
3097 }
c9a2f333
AM		 3098 if (htab->sdata[0].section == NULL
3099 && !ppc_elf_create_linker_section (abfd, info, 0,
3100 &htab->sdata[0]))
3101 return FALSE;
76750a2f
AM		 3102 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3103 h, rel))
25dbc73a 3104 return FALSE;
046183de
AM		 3105 if (h != NULL)
3106 {
3107 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3108 h->non_got_ref = TRUE;
3109 }
25dbc73a 3110 break;
252b5132 3111
25dbc73a
AM		 3112 /* Indirect .sdata2 relocation. */
3113 case R_PPC_EMB_SDA2I16:
3114 if (info->shared)
3115 {
3116 bad_shared_reloc (abfd, r_type);
3117 return FALSE;
3118 }
c9a2f333
AM		 3119 if (htab->sdata[1].section == NULL
3120 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3121 &htab->sdata[1]))
3122 return FALSE;
76750a2f
AM		 3123 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3124 h, rel))
25dbc73a 3125 return FALSE;
046183de
AM		 3126 if (h != NULL)
3127 {
3128 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3129 h->non_got_ref = TRUE;
3130 }
25dbc73a 3131 break;
252b5132 3132
25dbc73a 3133 case R_PPC_SDAREL16:
046183de
AM		 3134 if (info->shared)
3135 {
3136 bad_shared_reloc (abfd, r_type);
3137 return FALSE;
3138 }
3139 if (htab->sdata[0].sym == NULL
3140 && !create_sdata_sym (htab, &htab->sdata[0]))
3141 return FALSE;
3142 if (h != NULL)
3143 {
3144 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3145 h->non_got_ref = TRUE;
3146 }
3147 break;
3148
25dbc73a 3149 case R_PPC_EMB_SDA2REL:
046183de
AM		 3150 if (info->shared)
3151 {
3152 bad_shared_reloc (abfd, r_type);
3153 return FALSE;
3154 }
3155 if (htab->sdata[1].sym == NULL
3156 && !create_sdata_sym (htab, &htab->sdata[1]))
3157 return FALSE;
3158 if (h != NULL)
3159 {
3160 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3161 h->non_got_ref = TRUE;
3162 }
3163 break;
3164
25dbc73a
AM		 3165 case R_PPC_EMB_SDA21:
3166 case R_PPC_EMB_RELSDA:
046183de
AM		 3167 if (info->shared)
3168 {
3169 bad_shared_reloc (abfd, r_type);
3170 return FALSE;
3171 }
3172 if (htab->sdata[0].sym == NULL
3173 && !create_sdata_sym (htab, &htab->sdata[0]))
3174 return FALSE;
3175 if (htab->sdata[1].sym == NULL
3176 && !create_sdata_sym (htab, &htab->sdata[1]))
3177 return FALSE;
3178 if (h != NULL)
3179 {
3180 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3181 h->non_got_ref = TRUE;
3182 }
3183 break;
3184
25dbc73a
AM		 3185 case R_PPC_EMB_NADDR32:
3186 case R_PPC_EMB_NADDR16:
3187 case R_PPC_EMB_NADDR16_LO:
3188 case R_PPC_EMB_NADDR16_HI:
3189 case R_PPC_EMB_NADDR16_HA:
3190 if (info->shared)
3191 {
3192 bad_shared_reloc (abfd, r_type);
3193 return FALSE;
3194 }
4dc4a9a5 3195 if (h != NULL)
046183de 3196 h->non_got_ref = TRUE;
25dbc73a 3197 break;
252b5132 3198
25dbc73a
AM		 3199 case R_PPC_PLT32:
3200 case R_PPC_PLTREL24:
3201 case R_PPC_PLTREL32:
3202 case R_PPC_PLT16_LO:
3203 case R_PPC_PLT16_HI:
3204 case R_PPC_PLT16_HA:
3205#ifdef DEBUG
3206 fprintf (stderr, "Reloc requires a PLT entry\n");
3207#endif
3208 /* This symbol requires a procedure linkage table entry. We
3209 actually build the entry in finish_dynamic_symbol,
3210 because this might be a case of linking PIC code without
3211 linking in any dynamic objects, in which case we don't
3212 need to generate a procedure linkage table after all. */
7619e7c7 3213
25dbc73a
AM		 3214 if (h == NULL)
3215 {
3216 /* It does not make sense to have a procedure linkage
3217 table entry for a local symbol. */
3218 (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against "
3219 "local symbol"),
3220 abfd,
3221 sec,
3222 (long) rel->r_offset,
3223 ppc_elf_howto_table[r_type]->name);
3224 bfd_set_error (bfd_error_bad_value);
3225 return FALSE;
3226 }
a6aa5195
AM		 3227 else
3228 {
3229 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
ee05f2fe 3230
a6aa5195
AM		 3231 h->needs_plt = 1;
3232 if (!update_plt_info (abfd, h, got2, addend))
3233 return FALSE;
3234 }
25dbc73a 3235 break;
ee05f2fe 3236
25dbc73a
AM		 3237 /* The following relocations don't need to propagate the
3238 relocation if linking a shared object since they are
3239 section relative. */
3240 case R_PPC_SECTOFF:
3241 case R_PPC_SECTOFF_LO:
3242 case R_PPC_SECTOFF_HI:
3243 case R_PPC_SECTOFF_HA:
3244 case R_PPC_DTPREL16:
3245 case R_PPC_DTPREL16_LO:
3246 case R_PPC_DTPREL16_HI:
3247 case R_PPC_DTPREL16_HA:
3248 case R_PPC_TOC16:
3249 break;
252b5132 3250
d7128ce4
AM		 3251 case R_PPC_REL16:
3252 case R_PPC_REL16_LO:
3253 case R_PPC_REL16_HI:
3254 case R_PPC_REL16_HA:
4a3dc543 3255 htab->can_use_new_plt = 1;
d7128ce4
AM		 3256 break;
3257
a6aa5195 3258 /* These are just markers. */
25dbc73a
AM		 3259 case R_PPC_TLS:
3260 case R_PPC_EMB_MRKREF:
3261 case R_PPC_NONE:
3262 case R_PPC_max:
3263 break;
252b5132 3264
25dbc73a
AM		 3265 /* These should only appear in dynamic objects. */
3266 case R_PPC_COPY:
3267 case R_PPC_GLOB_DAT:
3268 case R_PPC_JMP_SLOT:
3269 case R_PPC_RELATIVE:
3270 break;
252b5132 3271
25dbc73a
AM		 3272 /* These aren't handled yet. We'll report an error later. */
3273 case R_PPC_ADDR30:
3274 case R_PPC_EMB_RELSEC16:
3275 case R_PPC_EMB_RELST_LO:
3276 case R_PPC_EMB_RELST_HI:
3277 case R_PPC_EMB_RELST_HA:
3278 case R_PPC_EMB_BIT_FLD:
3279 break;
252b5132 3280
25dbc73a
AM		 3281 /* This refers only to functions defined in the shared library. */
3282 case R_PPC_LOCAL24PC:
4a3dc543
RS		 3283 if (h && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
3284 htab->plt_type = PLT_OLD;
25dbc73a 3285 break;
252b5132 3286
25dbc73a
AM		 3287 /* This relocation describes the C++ object vtable hierarchy.
3288 Reconstruct it for later use during GC. */
3289 case R_PPC_GNU_VTINHERIT:
3290 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3291 return FALSE;
3292 break;
252b5132 3293
25dbc73a
AM		 3294 /* This relocation describes which C++ vtable entries are actually
3295 used. Record for later use during GC. */
3296 case R_PPC_GNU_VTENTRY:
3297 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3298 return FALSE;
3299 break;
252b5132 3300
25dbc73a
AM		 3301 /* We shouldn't really be seeing these. */
3302 case R_PPC_TPREL32:
3303 if (info->shared)
3304 info->flags |= DF_STATIC_TLS;
3305 goto dodyn;
252b5132 3306
25dbc73a
AM		 3307 /* Nor these. */
3308 case R_PPC_DTPMOD32:
3309 case R_PPC_DTPREL32:
3310 goto dodyn;
252b5132 3311
25dbc73a
AM		 3312 case R_PPC_TPREL16:
3313 case R_PPC_TPREL16_LO:
3314 case R_PPC_TPREL16_HI:
3315 case R_PPC_TPREL16_HA:
3316 if (info->shared)
3317 info->flags |= DF_STATIC_TLS;
3318 goto dodyn;
ee05f2fe 3319
9edfd1af
AM		 3320 case R_PPC_REL32:
3321 if (h == NULL
3322 && got2 != NULL
3323 && (sec->flags & SEC_CODE) != 0
3324 && (info->shared || info->pie)
4a3dc543 3325 && htab->plt_type == PLT_UNSET)
9edfd1af
AM		 3326 {
3327 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3328 the start of a function, which assembles to a REL32
3329 reference to .got2. If we detect one of these, then
3330 force the old PLT layout because the linker cannot
3331 reliably deduce the GOT pointer value needed for
3332 PLT call stubs. */
3333 asection *s;
3334
3335 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3336 r_symndx);
3337 if (s == got2)
4a3dc543 3338 htab->plt_type = PLT_OLD;
9edfd1af 3339 }
7123df0e 3340 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3341 break;
7123df0e 3342 goto dodyn1;
9edfd1af 3343
25dbc73a
AM		 3344 case R_PPC_REL24:
3345 case R_PPC_REL14:
3346 case R_PPC_REL14_BRTAKEN:
3347 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3348 if (h == NULL)
25dbc73a 3349 break;
7123df0e 3350 if (h == htab->elf.hgot)
d7128ce4 3351 {
7123df0e
AM		 3352 if (htab->plt_type == PLT_UNSET)
3353 htab->plt_type = PLT_OLD;
d7128ce4
AM		 3354 break;
3355 }
25dbc73a 3356 /* fall through */
ee05f2fe 3357
25dbc73a
AM		 3358 case R_PPC_ADDR32:
3359 case R_PPC_ADDR24:
3360 case R_PPC_ADDR16:
3361 case R_PPC_ADDR16_LO:
3362 case R_PPC_ADDR16_HI:
3363 case R_PPC_ADDR16_HA:
3364 case R_PPC_ADDR14:
3365 case R_PPC_ADDR14_BRTAKEN:
3366 case R_PPC_ADDR14_BRNTAKEN:
3367 case R_PPC_UADDR32:
3368 case R_PPC_UADDR16:
7123df0e 3369 dodyn1:
25dbc73a
AM		 3370 if (h != NULL && !info->shared)
3371 {
3372 /* We may need a plt entry if the symbol turns out to be
3373 a function defined in a dynamic object. */
a6aa5195
AM		 3374 if (!update_plt_info (abfd, h, NULL, 0))
3375 return FALSE;
7fce784e 3376
25dbc73a
AM		 3377 /* We may need a copy reloc too. */
3378 h->non_got_ref = 1;
3379 }
7619e7c7 3380
25dbc73a
AM		 3381 dodyn:
3382 /* If we are creating a shared library, and this is a reloc
3383 against a global symbol, or a non PC relative reloc
3384 against a local symbol, then we need to copy the reloc
3385 into the shared library. However, if we are linking with
3386 -Bsymbolic, we do not need to copy a reloc against a
3387 global symbol which is defined in an object we are
3388 including in the link (i.e., DEF_REGULAR is set). At
3389 this point we have not seen all the input files, so it is
3390 possible that DEF_REGULAR is not set now but will be set
3391 later (it is never cleared). In case of a weak definition,
3392 DEF_REGULAR may be cleared later by a strong definition in
3393 a shared library. We account for that possibility below by
3394 storing information in the dyn_relocs field of the hash
3395 table entry. A similar situation occurs when creating
3396 shared libraries and symbol visibility changes render the
3397 symbol local.
7619e7c7 3398
25dbc73a
AM		 3399 If on the other hand, we are creating an executable, we
3400 may need to keep relocations for symbols satisfied by a
3401 dynamic library if we manage to avoid copy relocs for the
3402 symbol. */
3403 if ((info->shared
3404 && (MUST_BE_DYN_RELOC (r_type)
3405 || (h != NULL
3406 && (! info->symbolic
3407 || h->root.type == bfd_link_hash_defweak
3408 || !h->def_regular))))
3409 || (ELIMINATE_COPY_RELOCS
3410 && !info->shared
25dbc73a
AM		 3411 && h != NULL
3412 && (h->root.type == bfd_link_hash_defweak
3413 || !h->def_regular)))
3414 {
3415 struct ppc_elf_dyn_relocs *p;
3416 struct ppc_elf_dyn_relocs **head;
7619e7c7 3417
25dbc73a
AM		 3418#ifdef DEBUG
3419 fprintf (stderr,
3420 "ppc_elf_check_relocs needs to "
3421 "create relocation for %s\n",
3422 (h && h->root.root.string
3423 ? h->root.root.string : "<unknown>"));
3424#endif
3425 if (sreloc == NULL)
3426 {
3427 const char *name;
7619e7c7 3428
25dbc73a
AM		 3429 name = (bfd_elf_string_from_elf_section
3430 (abfd,
3431 elf_elfheader (abfd)->e_shstrndx,
3432 elf_section_data (sec)->rel_hdr.sh_name));
3433 if (name == NULL)
3434 return FALSE;
7619e7c7 3435
25dbc73a
AM		 3436 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
3437 && strcmp (bfd_get_section_name (abfd, sec),
3438 name + 5) == 0);
7619e7c7 3439
c9a2f333
AM		 3440 if (htab->elf.dynobj == NULL)
3441 htab->elf.dynobj = abfd;
25dbc73a
AM		 3442 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3443 if (sreloc == NULL)
3444 {
3445 flagword flags;
7619e7c7 3446
25dbc73a 3447 flags = (SEC_HAS_CONTENTS | SEC_READONLY
c87b5a93
AM		 3448 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3449 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 3450 sreloc = bfd_make_section_with_flags (htab->elf.dynobj,
3451 name,
3452 flags);
25dbc73a 3453 if (sreloc == NULL
25dbc73a
AM		 3454 || ! bfd_set_section_alignment (htab->elf.dynobj,
3455 sreloc, 2))
3456 return FALSE;
3457 }
3458 elf_section_data (sec)->sreloc = sreloc;
3459 }
7619e7c7 3460
25dbc73a
AM		 3461 /* If this is a global symbol, we count the number of
3462 relocations we need for this symbol. */
3463 if (h != NULL)
3464 {
3465 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3466 }
3467 else
3468 {
3469 /* Track dynamic relocs needed for local syms too.
3470 We really need local syms available to do this
3471 easily. Oh well. */
7619e7c7 3472
25dbc73a 3473 asection *s;
6edfbbad
DJ		 3474 void *vpp;
3475
25dbc73a
AM		 3476 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3477 sec, r_symndx);
3478 if (s == NULL)
3479 return FALSE;
7fce784e 3480
6edfbbad
DJ		 3481 vpp = &elf_section_data (s)->local_dynrel;
3482 head = (struct ppc_elf_dyn_relocs **) vpp;
25dbc73a 3483 }
7fce784e 3484
25dbc73a
AM		 3485 p = *head;
3486 if (p == NULL || p->sec != sec)
3487 {
3488 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3489 if (p == NULL)
3490 return FALSE;
3491 p->next = *head;
3492 *head = p;
3493 p->sec = sec;
3494 p->count = 0;
3495 p->pc_count = 0;
3496 }
3497
3498 p->count += 1;
3499 if (!MUST_BE_DYN_RELOC (r_type))
3500 p->pc_count += 1;
7619e7c7 3501 }
25dbc73a
AM		 3502
3503 break;
7619e7c7
AM		 3504 }
3505 }
ee05f2fe 3506
25dbc73a
AM		 3507 return TRUE;
3508}
3509\f
8853c3d3
AM		 3510/* Merge backend specific data from an object file to the output
3511 object file when linking. */
3512
3513static bfd_boolean
3514ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3515{
3516 flagword old_flags;
3517 flagword new_flags;
3518 bfd_boolean error;
3519
3520 if (!is_ppc_elf_target (ibfd->xvec)
3521 || !is_ppc_elf_target (obfd->xvec))
3522 return TRUE;
3523
3524 /* Check if we have the same endianess. */
3525 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
3526 return FALSE;
3527
3528 new_flags = elf_elfheader (ibfd)->e_flags;
3529 old_flags = elf_elfheader (obfd)->e_flags;
3530 if (!elf_flags_init (obfd))
3531 {
3532 /* First call, no flags set. */
3533 elf_flags_init (obfd) = TRUE;
3534 elf_elfheader (obfd)->e_flags = new_flags;
3535 }
3536
3537 /* Compatible flags are ok. */
3538 else if (new_flags == old_flags)
3539 ;
3540
3541 /* Incompatible flags. */
3542 else
3543 {
3544 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
3545 to be linked with either. */
3546 error = FALSE;
3547 if ((new_flags & EF_PPC_RELOCATABLE) != 0
3548 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
3549 {
3550 error = TRUE;
3551 (*_bfd_error_handler)
3552 (_("%B: compiled with -mrelocatable and linked with "
3553 "modules compiled normally"), ibfd);
3554 }
3555 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
3556 && (old_flags & EF_PPC_RELOCATABLE) != 0)
3557 {
3558 error = TRUE;
3559 (*_bfd_error_handler)
3560 (_("%B: compiled normally and linked with "
3561 "modules compiled with -mrelocatable"), ibfd);
3562 }
3563
3564 /* The output is -mrelocatable-lib iff both the input files are. */
3565 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
3566 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
3567
3568 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
3569 but each input file is either -mrelocatable or -mrelocatable-lib. */
3570 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
3571 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
3572 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
3573 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
3574
3575 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
3576 any module uses it. */
3577 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
3578
3579 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3580 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
3581
3582 /* Warn about any other mismatches. */
3583 if (new_flags != old_flags)
3584 {
3585 error = TRUE;
3586 (*_bfd_error_handler)
3587 (_("%B: uses different e_flags (0x%lx) fields "
3588 "than previous modules (0x%lx)"),
3589 ibfd, (long) new_flags, (long) old_flags);
3590 }
3591
3592 if (error)
3593 {
3594 bfd_set_error (bfd_error_bad_value);
3595 return FALSE;
3596 }
3597 }
3598
3599 return TRUE;
3600}
3601\f
d7128ce4
AM		 3602/* Choose which PLT scheme to use, and set .plt flags appropriately.
3603 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
3604int
3605ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
3606 struct bfd_link_info *info,
0ba07910
AM		 3607 int force_old_plt,
3608 int emit_stub_syms)
d7128ce4
AM		 3609{
3610 struct ppc_elf_link_hash_table *htab;
9d8504b1 3611 flagword flags;
d7128ce4
AM		 3612
3613 htab = ppc_elf_hash_table (info);
4a3dc543
RS		 3614
3615 if (htab->plt_type == PLT_UNSET)
3616 htab->plt_type = (force_old_plt || !htab->can_use_new_plt
3617 ? PLT_OLD : PLT_NEW);
d7128ce4 3618
0ba07910
AM		 3619 htab->emit_stub_syms = emit_stub_syms;
3620
4a3dc543 3621 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 3622
4a3dc543 3623 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 3624 {
3625 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3626 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM		 3627
3628 /* The new PLT is a loaded section. */
3629 if (htab->plt != NULL
3630 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
3631 return -1;
3632
3633 /* The new GOT is not executable. */
3634 if (htab->got != NULL
3635 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
3636 return -1;
d7128ce4
AM		 3637 }
3638 else
3639 {
3640 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM		 3641 if (htab->glink != NULL
3642 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
3643 return -1;
d7128ce4 3644 }
4a3dc543 3645 return htab->plt_type == PLT_NEW;
d7128ce4
AM		 3646}
3647\f
25dbc73a
AM		 3648/* Return the section that should be marked against GC for a given
3649 relocation. */
586119b3 3650
25dbc73a
AM		 3651static asection *
3652ppc_elf_gc_mark_hook (asection *sec,
3653 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3654 Elf_Internal_Rela *rel,
3655 struct elf_link_hash_entry *h,
3656 Elf_Internal_Sym *sym)
3657{
3658 if (h != NULL)
ee05f2fe 3659 {
25dbc73a 3660 switch (ELF32_R_TYPE (rel->r_info))
ee05f2fe 3661 {
25dbc73a
AM		 3662 case R_PPC_GNU_VTINHERIT:
3663 case R_PPC_GNU_VTENTRY:
3664 break;
ee05f2fe 3665
25dbc73a
AM		 3666 default:
3667 switch (h->root.type)
ee05f2fe 3668 {
25dbc73a
AM		 3669 case bfd_link_hash_defined:
3670 case bfd_link_hash_defweak:
3671 return h->root.u.def.section;
3672
3673 case bfd_link_hash_common:
3674 return h->root.u.c.p->section;
3675
3676 default:
3677 break;
ee05f2fe
AM		 3678 }
3679 }
25dbc73a
AM		 3680 }
3681 else
3682 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4e795f50 3683
25dbc73a
AM		 3684 return NULL;
3685}
a876ecf9 3686
25dbc73a
AM		 3687/* Update the got, plt and dynamic reloc reference counts for the
3688 section being removed. */
3689
3690static bfd_boolean
3691ppc_elf_gc_sweep_hook (bfd *abfd,
3692 struct bfd_link_info *info,
3693 asection *sec,
3694 const Elf_Internal_Rela *relocs)
3695{
3696 struct ppc_elf_link_hash_table *htab;
3697 Elf_Internal_Shdr *symtab_hdr;
3698 struct elf_link_hash_entry **sym_hashes;
3699 bfd_signed_vma *local_got_refcounts;
3700 const Elf_Internal_Rela *rel, *relend;
a6aa5195 3701 asection *got2;
25dbc73a 3702
c87b5a93
AM		 3703 if ((sec->flags & SEC_ALLOC) == 0)
3704 return TRUE;
3705
25dbc73a
AM		 3706 elf_section_data (sec)->local_dynrel = NULL;
3707
3708 htab = ppc_elf_hash_table (info);
3709 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3710 sym_hashes = elf_sym_hashes (abfd);
3711 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 3712 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3713
3714 relend = relocs + sec->reloc_count;
3715 for (rel = relocs; rel < relend; rel++)
3716 {
3717 unsigned long r_symndx;
3718 enum elf_ppc_reloc_type r_type;
3719 struct elf_link_hash_entry *h = NULL;
3720
3721 r_symndx = ELF32_R_SYM (rel->r_info);
3722 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 3723 {
25dbc73a
AM		 3724 struct ppc_elf_dyn_relocs **pp, *p;
3725 struct ppc_elf_link_hash_entry *eh;
3726
3727 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3728 while (h->root.type == bfd_link_hash_indirect
3729 || h->root.type == bfd_link_hash_warning)
3730 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3731 eh = (struct ppc_elf_link_hash_entry *) h;
3732
3733 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3734 if (p->sec == sec)
3735 {
3736 /* Everything must go for SEC. */
3737 *pp = p->next;
3738 break;
3739 }
a876ecf9 3740 }
ee05f2fe 3741
25dbc73a
AM		 3742 r_type = ELF32_R_TYPE (rel->r_info);
3743 switch (r_type)
ee05f2fe 3744 {
25dbc73a
AM		 3745 case R_PPC_GOT_TLSLD16:
3746 case R_PPC_GOT_TLSLD16_LO:
3747 case R_PPC_GOT_TLSLD16_HI:
3748 case R_PPC_GOT_TLSLD16_HA:
3749 htab->tlsld_got.refcount -= 1;
3750 /* Fall thru */
3751
3752 case R_PPC_GOT_TLSGD16:
3753 case R_PPC_GOT_TLSGD16_LO:
3754 case R_PPC_GOT_TLSGD16_HI:
3755 case R_PPC_GOT_TLSGD16_HA:
3756 case R_PPC_GOT_TPREL16:
3757 case R_PPC_GOT_TPREL16_LO:
3758 case R_PPC_GOT_TPREL16_HI:
3759 case R_PPC_GOT_TPREL16_HA:
3760 case R_PPC_GOT_DTPREL16:
3761 case R_PPC_GOT_DTPREL16_LO:
3762 case R_PPC_GOT_DTPREL16_HI:
3763 case R_PPC_GOT_DTPREL16_HA:
3764 case R_PPC_GOT16:
3765 case R_PPC_GOT16_LO:
3766 case R_PPC_GOT16_HI:
3767 case R_PPC_GOT16_HA:
3768 if (h != NULL)
ee05f2fe 3769 {
25dbc73a
AM		 3770 if (h->got.refcount > 0)
3771 h->got.refcount--;
ee05f2fe 3772 }
25dbc73a
AM		 3773 else if (local_got_refcounts != NULL)
3774 {
3775 if (local_got_refcounts[r_symndx] > 0)
3776 local_got_refcounts[r_symndx]--;
3777 }
3778 break;
ee05f2fe 3779
25dbc73a
AM		 3780 case R_PPC_REL24:
3781 case R_PPC_REL14:
3782 case R_PPC_REL14_BRTAKEN:
3783 case R_PPC_REL14_BRNTAKEN:
3784 case R_PPC_REL32:
3b36f7e6 3785 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM		 3786 break;
3787 /* Fall thru */
ee05f2fe 3788
25dbc73a
AM		 3789 case R_PPC_ADDR32:
3790 case R_PPC_ADDR24:
3791 case R_PPC_ADDR16:
3792 case R_PPC_ADDR16_LO:
3793 case R_PPC_ADDR16_HI:
3794 case R_PPC_ADDR16_HA:
3795 case R_PPC_ADDR14:
3796 case R_PPC_ADDR14_BRTAKEN:
3797 case R_PPC_ADDR14_BRNTAKEN:
3798 case R_PPC_UADDR32:
3799 case R_PPC_UADDR16:
87538722
AM		 3800 if (info->shared)
3801 break;
3802
25dbc73a
AM		 3803 case R_PPC_PLT32:
3804 case R_PPC_PLTREL24:
87538722 3805 case R_PPC_PLTREL32:
25dbc73a
AM		 3806 case R_PPC_PLT16_LO:
3807 case R_PPC_PLT16_HI:
3808 case R_PPC_PLT16_HA:
3809 if (h != NULL)
3810 {
a6aa5195
AM		 3811 bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0;
3812 struct plt_entry *ent = find_plt_ent (h, got2, addend);
3813 if (ent->plt.refcount > 0)
3814 ent->plt.refcount -= 1;
25dbc73a
AM		 3815 }
3816 break;
ee05f2fe 3817
25dbc73a
AM		 3818 default:
3819 break;
3820 }
7fce784e 3821 }
7fce784e
AS		 3822 return TRUE;
3823}
25dbc73a
AM		 3824\f
3825/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
7fce784e 3826
25dbc73a
AM		 3827asection *
3828ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
7fce784e 3829{
25dbc73a 3830 struct ppc_elf_link_hash_table *htab;
7fce784e 3831
25dbc73a 3832 htab = ppc_elf_hash_table (info);
4a3dc543 3833 if (htab->plt_type == PLT_NEW
d7128ce4
AM		 3834 && htab->plt != NULL
3835 && htab->plt->output_section != NULL)
3836 {
3837 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
3838 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
3839 }
3840
25dbc73a
AM		 3841 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3842 FALSE, FALSE, TRUE);
25dbc73a 3843 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS		 3844}
3845
25dbc73a
AM		 3846/* Run through all the TLS relocs looking for optimization
3847 opportunities. */
252b5132 3848
25dbc73a
AM		 3849bfd_boolean
3850ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
3851 struct bfd_link_info *info)
252b5132 3852{
7fce784e 3853 bfd *ibfd;
25dbc73a
AM		 3854 asection *sec;
3855 struct ppc_elf_link_hash_table *htab;
252b5132 3856
25dbc73a
AM		 3857 if (info->relocatable || info->shared)
3858 return TRUE;
252b5132 3859
7619e7c7 3860 htab = ppc_elf_hash_table (info);
25dbc73a 3861 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
252b5132 3862 {
25dbc73a
AM		 3863 Elf_Internal_Sym *locsyms = NULL;
3864 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7619e7c7 3865
25dbc73a
AM		 3866 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
3867 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
3868 {
3869 Elf_Internal_Rela *relstart, *rel, *relend;
3870 int expecting_tls_get_addr;
252b5132 3871
25dbc73a
AM		 3872 /* Read the relocations. */
3873 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
3874 info->keep_memory);
3875 if (relstart == NULL)
3876 return FALSE;
7619e7c7 3877
25dbc73a
AM		 3878 expecting_tls_get_addr = 0;
3879 relend = relstart + sec->reloc_count;
3880 for (rel = relstart; rel < relend; rel++)
3881 {
3882 enum elf_ppc_reloc_type r_type;
3883 unsigned long r_symndx;
3884 struct elf_link_hash_entry *h = NULL;
3885 char *tls_mask;
3886 char tls_set, tls_clear;
3887 bfd_boolean is_local;
7fce784e 3888
25dbc73a
AM		 3889 r_symndx = ELF32_R_SYM (rel->r_info);
3890 if (r_symndx >= symtab_hdr->sh_info)
3891 {
3892 struct elf_link_hash_entry **sym_hashes;
7fce784e 3893
25dbc73a
AM		 3894 sym_hashes = elf_sym_hashes (ibfd);
3895 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3896 while (h->root.type == bfd_link_hash_indirect
3897 || h->root.type == bfd_link_hash_warning)
3898 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3899 }
7619e7c7 3900
25dbc73a
AM		 3901 is_local = FALSE;
3902 if (h == NULL
3903 || !h->def_dynamic)
3904 is_local = TRUE;
7619e7c7 3905
25dbc73a
AM		 3906 r_type = ELF32_R_TYPE (rel->r_info);
3907 switch (r_type)
7619e7c7 3908 {
25dbc73a
AM		 3909 case R_PPC_GOT_TLSLD16:
3910 case R_PPC_GOT_TLSLD16_LO:
3911 case R_PPC_GOT_TLSLD16_HI:
3912 case R_PPC_GOT_TLSLD16_HA:
3913 /* These relocs should never be against a symbol
3914 defined in a shared lib. Leave them alone if
3915 that turns out to be the case. */
3916 expecting_tls_get_addr = 0;
3917 htab->tlsld_got.refcount -= 1;
3918 if (!is_local)
3919 continue;
3920
3921 /* LD -> LE */
3922 tls_set = 0;
3923 tls_clear = TLS_LD;
3924 expecting_tls_get_addr = 1;
3925 break;
3926
3927 case R_PPC_GOT_TLSGD16:
3928 case R_PPC_GOT_TLSGD16_LO:
3929 case R_PPC_GOT_TLSGD16_HI:
3930 case R_PPC_GOT_TLSGD16_HA:
3931 if (is_local)
3932 /* GD -> LE */
3933 tls_set = 0;
3934 else
3935 /* GD -> IE */
3936 tls_set = TLS_TLS | TLS_TPRELGD;
3937 tls_clear = TLS_GD;
3938 expecting_tls_get_addr = 1;
3939 break;
3940
3941 case R_PPC_GOT_TPREL16:
3942 case R_PPC_GOT_TPREL16_LO:
3943 case R_PPC_GOT_TPREL16_HI:
3944 case R_PPC_GOT_TPREL16_HA:
3945 expecting_tls_get_addr = 0;
3946 if (is_local)
3947 {
3948 /* IE -> LE */
3949 tls_set = 0;
3950 tls_clear = TLS_TPREL;
3951 break;
3952 }
3953 else
3954 continue;
3955
3956 case R_PPC_REL14:
3957 case R_PPC_REL14_BRTAKEN:
3958 case R_PPC_REL14_BRNTAKEN:
3959 case R_PPC_REL24:
3960 if (expecting_tls_get_addr
3961 && h != NULL
3962 && h == htab->tls_get_addr)
3963 {
a6aa5195
AM		 3964 struct plt_entry *ent = find_plt_ent (h, NULL, 0);
3965 if (ent != NULL && ent->plt.refcount > 0)
3966 ent->plt.refcount -= 1;
25dbc73a
AM		 3967 }
3968 expecting_tls_get_addr = 0;
3969 continue;
3970
3971 default:
3972 expecting_tls_get_addr = 0;
3973 continue;
7619e7c7 3974 }
25dbc73a
AM		 3975
3976 if (h != NULL)
7619e7c7 3977 {
25dbc73a
AM		 3978 if (tls_set == 0)
3979 {
3980 /* We managed to get rid of a got entry. */
3981 if (h->got.refcount > 0)
3982 h->got.refcount -= 1;
3983 }
3984 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
3985 }
3986 else
3987 {
3988 Elf_Internal_Sym *sym;
3989 bfd_signed_vma *lgot_refs;
3990 char *lgot_masks;
3991
3992 if (locsyms == NULL)
3993 {
3994 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
3995 if (locsyms == NULL)
3996 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
3997 symtab_hdr->sh_info,
3998 0, NULL, NULL, NULL);
3999 if (locsyms == NULL)
4000 {
4001 if (elf_section_data (sec)->relocs != relstart)
4002 free (relstart);
4003 return FALSE;
4004 }
4005 }
4006 sym = locsyms + r_symndx;
4007 lgot_refs = elf_local_got_refcounts (ibfd);
4008 if (lgot_refs == NULL)
4009 abort ();
4010 if (tls_set == 0)
4011 {
4012 /* We managed to get rid of a got entry. */
4013 if (lgot_refs[r_symndx] > 0)
4014 lgot_refs[r_symndx] -= 1;
4015 }
4016 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4017 tls_mask = &lgot_masks[r_symndx];
7619e7c7 4018 }
25dbc73a
AM		 4019
4020 *tls_mask |= tls_set;
4021 *tls_mask &= ~tls_clear;
7619e7c7 4022 }
25dbc73a
AM		 4023
4024 if (elf_section_data (sec)->relocs != relstart)
4025 free (relstart);
7619e7c7 4026 }
25dbc73a
AM		 4027
4028 if (locsyms != NULL
4029 && (symtab_hdr->contents != (unsigned char *) locsyms))
4030 {
4031 if (!info->keep_memory)
4032 free (locsyms);
4033 else
4034 symtab_hdr->contents = (unsigned char *) locsyms;
4035 }
7fce784e 4036 }
25dbc73a
AM		 4037 return TRUE;
4038}
4039\f
4040/* Adjust a symbol defined by a dynamic object and referenced by a
4041 regular object. The current definition is in some section of the
4042 dynamic object, but we're not including those sections. We have to
4043 change the definition to something the rest of the link can
4044 understand. */
7fce784e 4045
25dbc73a
AM		 4046static bfd_boolean
4047ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4048 struct elf_link_hash_entry *h)
4049{
4050 struct ppc_elf_link_hash_table *htab;
4051 asection *s;
4052 unsigned int power_of_two;
7fce784e 4053
25dbc73a
AM		 4054#ifdef DEBUG
4055 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4056 h->root.root.string);
4057#endif
252b5132 4058
25dbc73a
AM		 4059 /* Make sure we know what is going on here. */
4060 htab = ppc_elf_hash_table (info);
4061 BFD_ASSERT (htab->elf.dynobj != NULL
4062 && (h->needs_plt
4063 || h->u.weakdef != NULL
4064 || (h->def_dynamic
4065 && h->ref_regular
4066 && !h->def_regular)));
252b5132 4067
25dbc73a
AM		 4068 /* Deal with function syms. */
4069 if (h->type == STT_FUNC
4070 || h->needs_plt)
4071 {
4072 /* Clear procedure linkage table information for any symbol that
4073 won't need a .plt entry. */
a6aa5195
AM		 4074 struct plt_entry *ent;
4075 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4076 if (ent->plt.refcount > 0)
4077 break;
4078 if (ent == NULL
25dbc73a
AM		 4079 || SYMBOL_CALLS_LOCAL (info, h)
4080 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4081 && h->root.type == bfd_link_hash_undefweak))
252b5132 4082 {
25dbc73a 4083 /* A PLT entry is not required/allowed when:
252b5132 4084
25dbc73a
AM		 4085 1. We are not using ld.so; because then the PLT entry
4086 can't be set up, so we can't use one. In this case,
4087 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4088
25dbc73a
AM		 4089 2. GC has rendered the entry unused.
4090
4091 3. We know for certain that a call to this symbol
4092 will go to this object, or will remain undefined. */
a6aa5195 4093 h->plt.plist = NULL;
25dbc73a
AM		 4094 h->needs_plt = 0;
4095 }
4096 return TRUE;
252b5132 4097 }
25dbc73a 4098 else
a6aa5195 4099 h->plt.plist = NULL;
252b5132 4100
25dbc73a
AM		 4101 /* If this is a weak symbol, and there is a real definition, the
4102 processor independent code will have arranged for us to see the
4103 real definition first, and we can just use the same value. */
4104 if (h->u.weakdef != NULL)
252b5132 4105 {
25dbc73a
AM		 4106 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4107 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4108 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4109 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4110 if (ELIMINATE_COPY_RELOCS)
4111 h->non_got_ref = h->u.weakdef->non_got_ref;
4112 return TRUE;
4113 }
dc810e39 4114
25dbc73a
AM		 4115 /* This is a reference to a symbol defined by a dynamic object which
4116 is not a function. */
252b5132 4117
25dbc73a
AM		 4118 /* If we are creating a shared library, we must presume that the
4119 only references to the symbol are via the global offset table.
4120 For such cases we need not do anything here; the relocations will
4121 be handled correctly by relocate_section. */
4122 if (info->shared)
4123 return TRUE;
252b5132 4124
25dbc73a
AM		 4125 /* If there are no references to this symbol that do not use the
4126 GOT, we don't need to generate a copy reloc. */
4127 if (!h->non_got_ref)
4128 return TRUE;
4129
4dc4a9a5
DJ		 4130 /* If we didn't find any dynamic relocs in read-only sections, then we'll
4131 be keeping the dynamic relocs and avoiding the copy reloc. We can't
4132 do this if there are any small data relocations. */
4133 if (ELIMINATE_COPY_RELOCS
4134 && !ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4135 {
4136 struct ppc_elf_dyn_relocs *p;
4137 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
252b5132 4138 {
25dbc73a
AM		 4139 s = p->sec->output_section;
4140 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4141 break;
252b5132
RH		 4142 }
4143
25dbc73a 4144 if (p == NULL)
252b5132 4145 {
25dbc73a
AM		 4146 h->non_got_ref = 0;
4147 return TRUE;
252b5132
RH		 4148 }
4149 }
4150
909272ee
AM		 4151 if (h->size == 0)
4152 {
4153 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
4154 h->root.root.string);
4155 return TRUE;
4156 }
4157
25dbc73a
AM		 4158 /* We must allocate the symbol in our .dynbss section, which will
4159 become part of the .bss section of the executable. There will be
4160 an entry for this symbol in the .dynsym section. The dynamic
4161 object will contain position independent code, so all references
4162 from the dynamic object to this symbol will go through the global
4163 offset table. The dynamic linker will use the .dynsym entry to
4164 determine the address it must put in the global offset table, so
4165 both the dynamic object and the regular object will refer to the
4166 same memory location for the variable.
4167
4dc4a9a5
DJ		 4168 Of course, if the symbol is referenced using SDAREL relocs, we
4169 must instead allocate it in .sbss. */
25dbc73a 4170
4dc4a9a5 4171 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4172 s = htab->dynsbss;
4173 else
4174 s = htab->dynbss;
4175 BFD_ASSERT (s != NULL);
4176
4177 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
4178 copy the initial value out of the dynamic object and into the
4179 runtime process image. We need to remember the offset into the
4180 .rela.bss section we are going to use. */
4181 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4182 {
4183 asection *srel;
4184
4dc4a9a5 4185 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 4186 srel = htab->relsbss;
4187 else
4188 srel = htab->relbss;
4189 BFD_ASSERT (srel != NULL);
4190 srel->size += sizeof (Elf32_External_Rela);
4191 h->needs_copy = 1;
4192 }
7619e7c7 4193
25dbc73a
AM		 4194 /* We need to figure out the alignment required for this symbol. I
4195 have no idea how ELF linkers handle this. */
4196 power_of_two = bfd_log2 (h->size);
4197 if (power_of_two > 4)
4198 power_of_two = 4;
7619e7c7 4199
25dbc73a
AM		 4200 /* Apply the required alignment. */
4201 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
4202 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
4203 {
4204 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
7619e7c7 4205 return FALSE;
7619e7c7
AM		 4206 }
4207
25dbc73a
AM		 4208 /* Define the symbol as being at this point in the section. */
4209 h->root.u.def.section = s;
4210 h->root.u.def.value = s->size;
7619e7c7 4211
25dbc73a
AM		 4212 /* Increment the section size to make room for the symbol. */
4213 s->size += h->size;
7619e7c7 4214
25dbc73a
AM		 4215 return TRUE;
4216}
4217\f
ac39eb42
AM		 4218/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
4219 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
4220 specifying the addend on the plt relocation. For -fpic code, the sym
4221 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
4222 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM		 4223
4224static bfd_boolean
4225add_stub_sym (struct plt_entry *ent,
4226 struct elf_link_hash_entry *h,
ac39eb42 4227 struct bfd_link_info *info)
0ba07910
AM		 4228{
4229 struct elf_link_hash_entry *sh;
4230 size_t len1, len2, len3;
4231 char *name;
ac39eb42
AM		 4232 const char *stub;
4233 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
4234
4235 if (info->shared || info->pie)
4236 stub = ".plt_pic32.";
4237 else
4238 stub = ".plt_call32.";
0ba07910
AM		 4239
4240 len1 = strlen (h->root.root.string);
ac39eb42 4241 len2 = strlen (stub);
0ba07910
AM		 4242 len3 = 0;
4243 if (ent->sec)
4244 len3 = strlen (ent->sec->name);
ac39eb42 4245 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM		 4246 if (name == NULL)
4247 return FALSE;
4248 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
4249 if (ent->sec)
4250 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM		 4251 memcpy (name + 8 + len3, stub, len2);
4252 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM		 4253 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
4254 if (sh == NULL)
4255 return FALSE;
4256 if (sh->root.type == bfd_link_hash_new)
4257 {
4258 sh->root.type = bfd_link_hash_defined;
4259 sh->root.u.def.section = htab->glink;
4260 sh->root.u.def.value = ent->glink_offset;
4261 sh->ref_regular = 1;
4262 sh->def_regular = 1;
4263 sh->ref_regular_nonweak = 1;
4264 sh->forced_local = 1;
4265 sh->non_elf = 0;
4266 }
4267 return TRUE;
4268}
4269
3b36f7e6
AM		 4270/* Allocate NEED contiguous space in .got, and return the offset.
4271 Handles allocation of the got header when crossing 32k. */
4272
4273static bfd_vma
4274allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
4275{
4276 bfd_vma where;
4a3dc543 4277 unsigned int max_before_header;
3b36f7e6 4278
4a3dc543 4279 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4280 {
4281 where = htab->got->size;
4282 htab->got->size += need;
4283 }
3b36f7e6
AM		 4284 else
4285 {
4a3dc543
RS		 4286 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
4287 if (need <= htab->got_gap)
3b36f7e6 4288 {
4a3dc543
RS		 4289 where = max_before_header - htab->got_gap;
4290 htab->got_gap -= need;
4291 }
4292 else
4293 {
4294 if (htab->got->size + need > max_before_header
4295 && htab->got->size <= max_before_header)
4296 {
4297 htab->got_gap = max_before_header - htab->got->size;
4298 htab->got->size = max_before_header + htab->got_header_size;
4299 }
4300 where = htab->got->size;
4301 htab->got->size += need;
3b36f7e6 4302 }
3b36f7e6
AM		 4303 }
4304 return where;
4305}
4306
25dbc73a 4307/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 4308
b34976b6 4309static bfd_boolean
25dbc73a 4310allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 4311{
25dbc73a
AM		 4312 struct bfd_link_info *info = inf;
4313 struct ppc_elf_link_hash_entry *eh;
7619e7c7 4314 struct ppc_elf_link_hash_table *htab;
25dbc73a 4315 struct ppc_elf_dyn_relocs *p;
252b5132 4316
25dbc73a 4317 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4318 return TRUE;
252b5132 4319
25dbc73a
AM		 4320 if (h->root.type == bfd_link_hash_warning)
4321 /* When warning symbols are created, they **replace** the "real"
4322 entry in the hash table, thus we never get to see the real
4323 symbol in a hash traversal. So look at it now. */
4324 h = (struct elf_link_hash_entry *) h->root.u.i.link;
e47cd125 4325
7619e7c7 4326 htab = ppc_elf_hash_table (info);
a6aa5195 4327 if (htab->elf.dynamic_sections_created)
252b5132 4328 {
a6aa5195
AM		 4329 struct plt_entry *ent;
4330 bfd_boolean doneone = FALSE;
28e99bb6
AM		 4331 bfd_vma plt_offset = 0, glink_offset = 0;
4332
a6aa5195
AM		 4333 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4334 if (ent->plt.refcount > 0)
4335 {
4336 /* Make sure this symbol is output as a dynamic symbol. */
4337 if (h->dynindx == -1
4338 && !h->forced_local)
4339 {
4340 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4341 return FALSE;
4342 }
252b5132 4343
a6aa5195
AM		 4344 if (info->shared
4345 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
4346 {
4347 asection *s = htab->plt;
7619e7c7 4348
4a3dc543 4349 if (htab->plt_type == PLT_NEW)
a6aa5195 4350 {
a6aa5195 4351 if (!doneone)
28e99bb6
AM		 4352 {
4353 plt_offset = s->size;
4354 s->size += 4;
4355 }
4356 ent->plt.offset = plt_offset;
d7128ce4 4357
a6aa5195 4358 s = htab->glink;
28e99bb6
AM		 4359 if (!doneone || info->shared || info->pie)
4360 {
4361 glink_offset = s->size;
4362 s->size += GLINK_ENTRY_SIZE;
4363 }
4364 if (!doneone
4365 && !info->shared
a6aa5195
AM		 4366 && !h->def_regular)
4367 {
4368 h->root.u.def.section = s;
28e99bb6 4369 h->root.u.def.value = glink_offset;
a6aa5195 4370 }
28e99bb6 4371 ent->glink_offset = glink_offset;
0ba07910
AM		 4372
4373 if (htab->emit_stub_syms
ac39eb42 4374 && !add_stub_sym (ent, h, info))
0ba07910 4375 return FALSE;
a6aa5195
AM		 4376 }
4377 else
4378 {
a6aa5195
AM		 4379 if (!doneone)
4380 {
28e99bb6
AM		 4381 /* If this is the first .plt entry, make room
4382 for the special first entry. */
4383 if (s->size == 0)
9d8504b1 4384 s->size += htab->plt_initial_entry_size;
28e99bb6
AM		 4385
4386 /* The PowerPC PLT is actually composed of two
4387 parts, the first part is 2 words (for a load
4388 and a jump), and then there is a remaining
4389 word available at the end. */
9d8504b1
PB		 4390 plt_offset = (htab->plt_initial_entry_size
4391 + (htab->plt_slot_size
4392 * ((s->size
4393 - htab->plt_initial_entry_size)
4394 / htab->plt_entry_size)));
28e99bb6
AM		 4395
4396 /* If this symbol is not defined in a regular
4397 file, and we are not generating a shared
4398 library, then set the symbol to this location
4399 in the .plt. This is required to make
4400 function pointers compare as equal between
4401 the normal executable and the shared library. */
4402 if (! info->shared
4403 && !h->def_regular)
4404 {
4405 h->root.u.def.section = s;
4406 h->root.u.def.value = plt_offset;
4407 }
4408
9d8504b1
PB		 4409 /* Make room for this entry. */
4410 s->size += htab->plt_entry_size;
4411 /* After the 8192nd entry, room for two entries
4412 is allocated. */
4a3dc543 4413 if (htab->plt_type == PLT_OLD
9d8504b1
PB		 4414 && (s->size - htab->plt_initial_entry_size)
4415 / htab->plt_entry_size
4416 > PLT_NUM_SINGLE_ENTRIES)
4417 s->size += htab->plt_entry_size;
a6aa5195 4418 }
28e99bb6 4419 ent->plt.offset = plt_offset;
a6aa5195 4420 }
25dbc73a 4421
a6aa5195
AM		 4422 /* We also need to make an entry in the .rela.plt section. */
4423 if (!doneone)
4424 {
4425 htab->relplt->size += sizeof (Elf32_External_Rela);
9d8504b1 4426
4a3dc543 4427 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 4428 {
4429 /* Allocate space for the unloaded relocations. */
4430 if (!info->shared)
4431 {
4432 if (ent->plt.offset
4433 == (bfd_vma) htab->plt_initial_entry_size)
4434 {
4435 htab->srelplt2->size
4436 += sizeof (Elf32_External_Rela)
4437 * VXWORKS_PLTRESOLVE_RELOCS;
4438 }
4439
4440 htab->srelplt2->size
4441 += sizeof (Elf32_External_Rela)
4442 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS;
4443 }
4444
4445 /* Every PLT entry has an associated GOT entry in
4446 .got.plt. */
4447 htab->sgotplt->size += 4;
4448 }
a6aa5195
AM		 4449 doneone = TRUE;
4450 }
4451 }
4452 else
4453 ent->plt.offset = (bfd_vma) -1;
4454
4455 if (!doneone)
4456 {
4457 h->plt.plist = NULL;
4458 h->needs_plt = 0;
4459 }
4460 }
25dbc73a
AM		 4461 }
4462 else
4463 {
a6aa5195 4464 h->plt.plist = NULL;
25dbc73a
AM		 4465 h->needs_plt = 0;
4466 }
4467
4468 eh = (struct ppc_elf_link_hash_entry *) h;
4469 if (eh->elf.got.refcount > 0)
4470 {
4471 /* Make sure this symbol is output as a dynamic symbol. */
4472 if (eh->elf.dynindx == -1
4473 && !eh->elf.forced_local)
4474 {
4475 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 4476 return FALSE;
25dbc73a 4477 }
252b5132 4478
25dbc73a
AM		 4479 if (eh->tls_mask == (TLS_TLS | TLS_LD)
4480 && !eh->elf.def_dynamic)
4481 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
4482 eh->elf.got.offset = (bfd_vma) -1;
4483 else
4484 {
4485 bfd_boolean dyn;
3b36f7e6 4486 unsigned int need = 0;
25dbc73a 4487 if ((eh->tls_mask & TLS_TLS) != 0)
252b5132 4488 {
25dbc73a 4489 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6 4490 need += 8;
25dbc73a 4491 if ((eh->tls_mask & TLS_GD) != 0)
3b36f7e6 4492 need += 8;
25dbc73a 4493 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4494 need += 4;
25dbc73a 4495 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 4496 need += 4;
252b5132 4497 }
25dbc73a 4498 else
3b36f7e6
AM		 4499 need += 4;
4500 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM		 4501 dyn = htab->elf.dynamic_sections_created;
4502 if ((info->shared
4503 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
4504 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
4505 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 4506 {
3b36f7e6
AM		 4507 /* All the entries we allocated need relocs.
4508 Except LD only needs one. */
25dbc73a 4509 if ((eh->tls_mask & TLS_LD) != 0)
3b36f7e6
AM		 4510 need -= 4;
4511 htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 4512 }
25dbc73a
AM		 4513 }
4514 }
4515 else
4516 eh->elf.got.offset = (bfd_vma) -1;
252b5132 4517
25dbc73a
AM		 4518 if (eh->dyn_relocs == NULL)
4519 return TRUE;
252b5132 4520
25dbc73a
AM		 4521 /* In the shared -Bsymbolic case, discard space allocated for
4522 dynamic pc-relative relocs against symbols which turn out to be
4523 defined in regular objects. For the normal shared case, discard
4524 space for relocs that have become local due to symbol visibility
4525 changes. */
4526
4527 if (info->shared)
4528 {
4529 /* Relocs that use pc_count are those that appear on a call insn,
4530 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
4531 generated via assembly. We want calls to protected symbols to
4532 resolve directly to the function rather than going via the plt.
4533 If people want function pointer comparisons to work as expected
4534 then they should avoid writing weird assembly. */
4535 if (SYMBOL_CALLS_LOCAL (info, h))
4536 {
4537 struct ppc_elf_dyn_relocs **pp;
4538
4539 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 4540 {
25dbc73a
AM		 4541 p->count -= p->pc_count;
4542 p->pc_count = 0;
4543 if (p->count == 0)
4544 *pp = p->next;
4545 else
4546 pp = &p->next;
252b5132 4547 }
25dbc73a 4548 }
252b5132 4549
25dbc73a
AM		 4550 /* Also discard relocs on undefined weak syms with non-default
4551 visibility. */
cab87ef9
AM		 4552 if (eh->dyn_relocs != NULL
4553 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 4554 {
dfbb6ac9
AM		 4555 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4556 eh->dyn_relocs = NULL;
4557
4558 /* Make sure undefined weak symbols are output as a dynamic
4559 symbol in PIEs. */
4560 else if (h->dynindx == -1
4561 && !h->forced_local)
4562 {
4563 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4564 return FALSE;
4565 }
25dbc73a
AM		 4566 }
4567 }
4568 else if (ELIMINATE_COPY_RELOCS)
4569 {
4570 /* For the non-shared case, discard space for relocs against
4571 symbols which turn out to need copy relocs or are not
4572 dynamic. */
7619e7c7 4573
25dbc73a
AM		 4574 if (!h->non_got_ref
4575 && h->def_dynamic
4576 && !h->def_regular)
4577 {
4578 /* Make sure this symbol is output as a dynamic symbol.
4579 Undefined weak syms won't yet be marked as dynamic. */
4580 if (h->dynindx == -1
4581 && !h->forced_local)
4582 {
4583 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4584 return FALSE;
4585 }
7619e7c7 4586
25dbc73a
AM		 4587 /* If that succeeded, we know we'll be keeping all the
4588 relocs. */
4589 if (h->dynindx != -1)
4590 goto keep;
4591 }
252b5132 4592
25dbc73a 4593 eh->dyn_relocs = NULL;
252b5132 4594
25dbc73a
AM		 4595 keep: ;
4596 }
252b5132 4597
25dbc73a
AM		 4598 /* Finally, allocate space. */
4599 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4600 {
4601 asection *sreloc = elf_section_data (p->sec)->sreloc;
4602 sreloc->size += p->count * sizeof (Elf32_External_Rela);
4603 }
252b5132 4604
25dbc73a
AM		 4605 return TRUE;
4606}
7619e7c7 4607
25dbc73a 4608/* Find any dynamic relocs that apply to read-only sections. */
7619e7c7 4609
25dbc73a
AM		 4610static bfd_boolean
4611readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
4612{
4613 struct ppc_elf_dyn_relocs *p;
7619e7c7 4614
25dbc73a
AM		 4615 if (h->root.type == bfd_link_hash_indirect)
4616 return TRUE;
252b5132 4617
25dbc73a
AM		 4618 if (h->root.type == bfd_link_hash_warning)
4619 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 4620
25dbc73a
AM		 4621 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4622 {
4623 asection *s = p->sec->output_section;
ee05f2fe 4624
25dbc73a
AM		 4625 if (s != NULL
4626 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4627 == (SEC_READONLY | SEC_ALLOC)))
4628 {
4629 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 4630
25dbc73a
AM		 4631 /* Not an error, just cut short the traversal. */
4632 return FALSE;
4633 }
4634 }
4635 return TRUE;
4636}
4637
4638/* Set the sizes of the dynamic sections. */
4639
4640static bfd_boolean
4641ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
4642 struct bfd_link_info *info)
4643{
4644 struct ppc_elf_link_hash_table *htab;
4645 asection *s;
4646 bfd_boolean relocs;
4647 bfd *ibfd;
7fce784e 4648
252b5132 4649#ifdef DEBUG
25dbc73a 4650 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 4651#endif
252b5132 4652
25dbc73a
AM		 4653 htab = ppc_elf_hash_table (info);
4654 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 4655
25dbc73a
AM		 4656 if (elf_hash_table (info)->dynamic_sections_created)
4657 {
4658 /* Set the contents of the .interp section to the interpreter. */
4659 if (info->executable)
4660 {
4661 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
4662 BFD_ASSERT (s != NULL);
4663 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
4664 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
4665 }
4666 }
252b5132 4667
4a3dc543 4668 if (htab->plt_type == PLT_OLD)
d7128ce4 4669 htab->got_header_size = 16;
4a3dc543 4670 else if (htab->plt_type == PLT_NEW)
d7128ce4 4671 htab->got_header_size = 12;
252b5132 4672
25dbc73a
AM		 4673 /* Set up .got offsets for local syms, and space for local dynamic
4674 relocs. */
4675 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4676 {
4677 bfd_signed_vma *local_got;
4678 bfd_signed_vma *end_local_got;
4679 char *lgot_masks;
4680 bfd_size_type locsymcount;
4681 Elf_Internal_Shdr *symtab_hdr;
7fce784e 4682
d2663f46 4683 if (!is_ppc_elf_target (ibfd->xvec))
25dbc73a 4684 continue;
7fce784e 4685
25dbc73a
AM		 4686 for (s = ibfd->sections; s != NULL; s = s->next)
4687 {
4688 struct ppc_elf_dyn_relocs *p;
252b5132 4689
25dbc73a
AM		 4690 for (p = ((struct ppc_elf_dyn_relocs *)
4691 elf_section_data (s)->local_dynrel);
4692 p != NULL;
4693 p = p->next)
4694 {
4695 if (!bfd_is_abs_section (p->sec)
4696 && bfd_is_abs_section (p->sec->output_section))
4697 {
4698 /* Input section has been discarded, either because
4699 it is a copy of a linkonce section or due to
4700 linker script /DISCARD/, so we'll be discarding
4701 the relocs too. */
7fce784e 4702 }
25dbc73a 4703 else if (p->count != 0)
7fce784e 4704 {
25dbc73a
AM		 4705 elf_section_data (p->sec)->sreloc->size
4706 += p->count * sizeof (Elf32_External_Rela);
4707 if ((p->sec->output_section->flags
4708 & (SEC_READONLY | SEC_ALLOC))
4709 == (SEC_READONLY | SEC_ALLOC))
4710 info->flags |= DF_TEXTREL;
7fce784e 4711 }
252b5132 4712 }
252b5132 4713 }
252b5132 4714
25dbc73a
AM		 4715 local_got = elf_local_got_refcounts (ibfd);
4716 if (!local_got)
4717 continue;
252b5132 4718
25dbc73a
AM		 4719 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4720 locsymcount = symtab_hdr->sh_info;
4721 end_local_got = local_got + locsymcount;
4722 lgot_masks = (char *) end_local_got;
25dbc73a
AM		 4723 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
4724 if (*local_got > 0)
4725 {
4726 if (*lgot_masks == (TLS_TLS | TLS_LD))
4727 {
4728 /* If just an LD reloc, we'll just use
4729 htab->tlsld_got.offset. */
3b36f7e6 4730 htab->tlsld_got.refcount += 1;
25dbc73a
AM		 4731 *local_got = (bfd_vma) -1;
4732 }
4733 else
4734 {
3b36f7e6 4735 unsigned int need = 0;
25dbc73a
AM		 4736 if ((*lgot_masks & TLS_TLS) != 0)
4737 {
4738 if ((*lgot_masks & TLS_GD) != 0)
3b36f7e6 4739 need += 8;
25dbc73a 4740 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3b36f7e6 4741 need += 4;
25dbc73a 4742 if ((*lgot_masks & TLS_DTPREL) != 0)
3b36f7e6 4743 need += 4;
25dbc73a
AM		 4744 }
4745 else
3b36f7e6
AM		 4746 need += 4;
4747 *local_got = allocate_got (htab, need);
25dbc73a 4748 if (info->shared)
3b36f7e6
AM		 4749 htab->relgot->size += (need
4750 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM		 4751 }
4752 }
4753 else
4754 *local_got = (bfd_vma) -1;
4755 }
252b5132 4756
3b36f7e6
AM		 4757 if (htab->tlsld_got.refcount > 0)
4758 {
4759 htab->tlsld_got.offset = allocate_got (htab, 8);
4760 if (info->shared)
4761 htab->relgot->size += sizeof (Elf32_External_Rela);
4762 }
4763 else
4764 htab->tlsld_got.offset = (bfd_vma) -1;
4765
25dbc73a
AM		 4766 /* Allocate space for global sym dynamic relocs. */
4767 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
4768
4a3dc543 4769 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM		 4770 {
4771 unsigned int g_o_t = 32768;
4772
4d962050
AM		 4773 /* If we haven't allocated the header, do so now. When we get here,
4774 for old plt/got the got size will be 0 to 32764 (not allocated),
4775 or 32780 to 65536 (header allocated). For new plt/got, the
4776 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM		 4777 if (htab->got->size <= 32768)
4778 {
4779 g_o_t = htab->got->size;
4a3dc543 4780 if (htab->plt_type == PLT_OLD)
4d962050 4781 g_o_t += 4;
3b36f7e6
AM		 4782 htab->got->size += htab->got_header_size;
4783 }
3b36f7e6
AM		 4784
4785 htab->elf.hgot->root.u.def.value = g_o_t;
4786 }
4787
d7128ce4
AM		 4788 if (htab->glink != NULL && htab->glink->size != 0)
4789 {
4790 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM		 4791 /* Space for the branch table. */
4792 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
4793 /* Pad out to align the start of PLTresolve. */
4794 htab->glink->size += -htab->glink->size & 15;
d7128ce4 4795 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM		 4796
4797 if (htab->emit_stub_syms)
4798 {
4799 struct elf_link_hash_entry *sh;
4800 sh = elf_link_hash_lookup (&htab->elf, "__glink",
4801 TRUE, FALSE, FALSE);
4802 if (sh == NULL)
4803 return FALSE;
4804 if (sh->root.type == bfd_link_hash_new)
4805 {
4806 sh->root.type = bfd_link_hash_defined;
4807 sh->root.u.def.section = htab->glink;
4808 sh->root.u.def.value = htab->glink_pltresolve;
4809 sh->ref_regular = 1;
4810 sh->def_regular = 1;
4811 sh->ref_regular_nonweak = 1;
4812 sh->forced_local = 1;
4813 sh->non_elf = 0;
4814 }
4815 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
4816 TRUE, FALSE, FALSE);
4817 if (sh == NULL)
4818 return FALSE;
4819 if (sh->root.type == bfd_link_hash_new)
4820 {
4821 sh->root.type = bfd_link_hash_defined;
4822 sh->root.u.def.section = htab->glink;
4823 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
4824 sh->ref_regular = 1;
4825 sh->def_regular = 1;
4826 sh->ref_regular_nonweak = 1;
4827 sh->forced_local = 1;
4828 sh->non_elf = 0;
4829 }
4830 }
d7128ce4
AM		 4831 }
4832
25dbc73a
AM		 4833 /* We've now determined the sizes of the various dynamic sections.
4834 Allocate memory for them. */
4835 relocs = FALSE;
4836 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 4837 {
9d8504b1
PB		 4838 bfd_boolean strip_section = TRUE;
4839
25dbc73a
AM		 4840 if ((s->flags & SEC_LINKER_CREATED) == 0)
4841 continue;
252b5132 4842
25dbc73a 4843 if (s == htab->plt
d7128ce4 4844 || s == htab->glink
644285ef 4845 || s == htab->got
9d8504b1 4846 || s == htab->sgotplt
c456f082
AM		 4847 || s == htab->sbss
4848 || s == htab->dynbss
4849 || s == htab->dynsbss)
25dbc73a 4850 {
9d8504b1
PB		 4851 /* We'd like to strip these sections if they aren't needed, but if
4852 we've exported dynamic symbols from them we must leave them.
4853 It's too late to tell BFD to get rid of the symbols. */
7325306f 4854 if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL)
9d8504b1 4855 strip_section = FALSE;
25dbc73a
AM		 4856 /* Strip this section if we don't need it; see the
4857 comment below. */
4858 }
c9a2f333
AM		 4859 else if (s == htab->sdata[0].section
4860 || s == htab->sdata[1].section)
25dbc73a 4861 {
c9a2f333 4862 /* Strip these too. */
25dbc73a
AM		 4863 }
4864 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
4865 {
c456f082 4866 if (s->size != 0)
25dbc73a
AM		 4867 {
4868 /* Remember whether there are any relocation sections. */
4869 relocs = TRUE;
252b5132 4870
25dbc73a
AM		 4871 /* We use the reloc_count field as a counter if we need
4872 to copy relocs into the output file. */
4873 s->reloc_count = 0;
252b5132
RH		 4874 }
4875 }
25dbc73a
AM		 4876 else
4877 {
4878 /* It's not one of our sections, so don't allocate space. */
4879 continue;
4880 }
252b5132 4881
9d8504b1 4882 if (s->size == 0 && strip_section)
25dbc73a 4883 {
c456f082
AM		 4884 /* If we don't need this section, strip it from the
4885 output file. This is mostly to handle .rela.bss and
4886 .rela.plt. We must create both sections in
4887 create_dynamic_sections, because they must be created
4888 before the linker maps input sections to output
4889 sections. The linker does that before
4890 adjust_dynamic_symbol is called, and it is that
4891 function which decides whether anything needs to go
4892 into these sections. */
8423293d 4893 s->flags |= SEC_EXCLUDE;
25dbc73a
AM		 4894 continue;
4895 }
7fce784e 4896
d7128ce4 4897 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM		 4898 continue;
4899
25dbc73a
AM		 4900 /* Allocate memory for the section contents. */
4901 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
4902 if (s->contents == NULL)
4903 return FALSE;
4904 }
252b5132 4905
25dbc73a 4906 if (htab->elf.dynamic_sections_created)
7619e7c7 4907 {
25dbc73a
AM		 4908 /* Add some entries to the .dynamic section. We fill in the
4909 values later, in ppc_elf_finish_dynamic_sections, but we
4910 must add the entries now so that we get the correct size for
4911 the .dynamic section. The DT_DEBUG entry is filled in by the
4912 dynamic linker and used by the debugger. */
4913#define add_dynamic_entry(TAG, VAL) \
4914 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 4915
25dbc73a 4916 if (info->executable)
7619e7c7 4917 {
25dbc73a
AM		 4918 if (!add_dynamic_entry (DT_DEBUG, 0))
4919 return FALSE;
7619e7c7
AM		 4920 }
4921
25dbc73a 4922 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 4923 {
25dbc73a
AM		 4924 if (!add_dynamic_entry (DT_PLTGOT, 0)
4925 || !add_dynamic_entry (DT_PLTRELSZ, 0)
4926 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
4927 || !add_dynamic_entry (DT_JMPREL, 0))
4928 return FALSE;
4929 }
7619e7c7 4930
d7128ce4
AM		 4931 if (htab->glink != NULL && htab->glink->size != 0)
4932 {
1fe44d79 4933 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4
AM		 4934 return FALSE;
4935 }
4936
25dbc73a
AM		 4937 if (relocs)
4938 {
4939 if (!add_dynamic_entry (DT_RELA, 0)
4940 || !add_dynamic_entry (DT_RELASZ, 0)
4941 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
4942 return FALSE;
4943 }
7619e7c7 4944
25dbc73a
AM		 4945 /* If any dynamic relocs apply to a read-only section, then we
4946 need a DT_TEXTREL entry. */
4947 if ((info->flags & DF_TEXTREL) == 0)
4948 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
4949 info);
7619e7c7 4950
25dbc73a
AM		 4951 if ((info->flags & DF_TEXTREL) != 0)
4952 {
4953 if (!add_dynamic_entry (DT_TEXTREL, 0))
4954 return FALSE;
7619e7c7
AM		 4955 }
4956 }
25dbc73a
AM		 4957#undef add_dynamic_entry
4958
7619e7c7
AM		 4959 return TRUE;
4960}
25dbc73a
AM		 4961\f
4962#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
4963
4964static const int shared_stub_entry[] =
4965 {
4966 0x7c0802a6, /* mflr 0 */
4967 0x429f0005, /* bcl 20, 31, .Lxxx */
4968 0x7d6802a6, /* mflr 11 */
4969 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
4970 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
4971 0x7c0803a6, /* mtlr 0 */
4972 0x7d6903a6, /* mtctr 11 */
4973 0x4e800420, /* bctr */
4974 };
4975
4976static const int stub_entry[] =
4977 {
4978 0x3d600000, /* lis 11,xxx@ha */
4979 0x396b0000, /* addi 11,11,xxx@l */
4980 0x7d6903a6, /* mtctr 11 */
4981 0x4e800420, /* bctr */
4982 };
4983
4984static bfd_boolean
4985ppc_elf_relax_section (bfd *abfd,
4986 asection *isec,
4987 struct bfd_link_info *link_info,
4988 bfd_boolean *again)
4989{
4990 struct one_fixup
4991 {
4992 struct one_fixup *next;
4993 asection *tsec;
4994 bfd_vma toff;
4995 bfd_vma trampoff;
4996 };
7619e7c7 4997
25dbc73a
AM		 4998 Elf_Internal_Shdr *symtab_hdr;
4999 bfd_byte *contents = NULL;
5000 Elf_Internal_Sym *isymbuf = NULL;
5001 Elf_Internal_Rela *internal_relocs = NULL;
5002 Elf_Internal_Rela *irel, *irelend;
5003 struct one_fixup *fixups = NULL;
5004 bfd_boolean changed;
d7128ce4 5005 struct ppc_elf_link_hash_table *htab;
25dbc73a 5006 bfd_size_type trampoff;
a6aa5195 5007 asection *got2;
7619e7c7 5008
25dbc73a 5009 *again = FALSE;
7619e7c7 5010
c87b5a93
AM		 5011 /* Nothing to do if there are no relocations, and no need to do
5012 anything with non-alloc sections. */
5013 if ((isec->flags & SEC_ALLOC) == 0
5014 || (isec->flags & SEC_RELOC) == 0
5015 || isec->reloc_count == 0)
25dbc73a 5016 return TRUE;
7619e7c7 5017
25dbc73a
AM		 5018 trampoff = (isec->size + 3) & (bfd_vma) -4;
5019 /* Space for a branch around any trampolines. */
5020 trampoff += 4;
7619e7c7 5021
25dbc73a 5022 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
7619e7c7 5023
25dbc73a
AM		 5024 /* Get a copy of the native relocations. */
5025 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
5026 link_info->keep_memory);
5027 if (internal_relocs == NULL)
5028 goto error_return;
7619e7c7 5029
d7128ce4 5030 htab = ppc_elf_hash_table (link_info);
a6aa5195 5031 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 5032
a6aa5195 5033 irelend = internal_relocs + isec->reloc_count;
25dbc73a 5034 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 5035 {
25dbc73a
AM		 5036 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
5037 bfd_vma symaddr, reladdr, toff, roff;
5038 asection *tsec;
5039 struct one_fixup *f;
5040 size_t insn_offset = 0;
5041 bfd_vma max_branch_offset, val;
5042 bfd_byte *hit_addr;
5043 unsigned long t0;
5044 unsigned char sym_type;
7619e7c7 5045
25dbc73a
AM		 5046 switch (r_type)
5047 {
5048 case R_PPC_REL24:
5049 case R_PPC_LOCAL24PC:
5050 case R_PPC_PLTREL24:
5051 max_branch_offset = 1 << 25;
5052 break;
7619e7c7 5053
25dbc73a
AM		 5054 case R_PPC_REL14:
5055 case R_PPC_REL14_BRTAKEN:
5056 case R_PPC_REL14_BRNTAKEN:
5057 max_branch_offset = 1 << 15;
5058 break;
7619e7c7 5059
25dbc73a
AM		 5060 default:
5061 continue;
5062 }
7619e7c7 5063
25dbc73a
AM		 5064 /* Get the value of the symbol referred to by the reloc. */
5065 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
5066 {
5067 /* A local symbol. */
5068 Elf_Internal_Sym *isym;
7fce784e 5069
25dbc73a
AM		 5070 /* Read this BFD's local symbols. */
5071 if (isymbuf == NULL)
5072 {
5073 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5074 if (isymbuf == NULL)
5075 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
5076 symtab_hdr->sh_info, 0,
5077 NULL, NULL, NULL);
5078 if (isymbuf == 0)
5079 goto error_return;
5080 }
5081 isym = isymbuf + ELF32_R_SYM (irel->r_info);
5082 if (isym->st_shndx == SHN_UNDEF)
5083 continue; /* We can't do anything with undefined symbols. */
5084 else if (isym->st_shndx == SHN_ABS)
5085 tsec = bfd_abs_section_ptr;
5086 else if (isym->st_shndx == SHN_COMMON)
5087 tsec = bfd_com_section_ptr;
5088 else
5089 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 5090
25dbc73a
AM		 5091 toff = isym->st_value;
5092 sym_type = ELF_ST_TYPE (isym->st_info);
5093 }
5094 else
5095 {
5096 /* Global symbol handling. */
5097 unsigned long indx;
5098 struct elf_link_hash_entry *h;
7619e7c7 5099
25dbc73a
AM		 5100 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
5101 h = elf_sym_hashes (abfd)[indx];
7619e7c7 5102
25dbc73a
AM		 5103 while (h->root.type == bfd_link_hash_indirect
5104 || h->root.type == bfd_link_hash_warning)
5105 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 5106
a6aa5195
AM		 5107 tsec = NULL;
5108 toff = 0;
25dbc73a 5109 if (r_type == R_PPC_PLTREL24
a6aa5195 5110 && htab->plt != NULL)
25dbc73a 5111 {
a6aa5195
AM		 5112 struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend);
5113
5114 if (ent != NULL)
d7128ce4 5115 {
4a3dc543 5116 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 5117 {
5118 tsec = htab->glink;
5119 toff = ent->glink_offset;
5120 }
5121 else
5122 {
5123 tsec = htab->plt;
5124 toff = ent->plt.offset;
5125 }
d7128ce4 5126 }
25dbc73a 5127 }
a6aa5195
AM		 5128 if (tsec != NULL)
5129 ;
25dbc73a
AM		 5130 else if (h->root.type == bfd_link_hash_defined
5131 || h->root.type == bfd_link_hash_defweak)
5132 {
5133 tsec = h->root.u.def.section;
5134 toff = h->root.u.def.value;
5135 }
5136 else
5137 continue;
7619e7c7 5138
25dbc73a
AM		 5139 sym_type = h->type;
5140 }
7619e7c7 5141
25dbc73a
AM		 5142 /* If the branch and target are in the same section, you have
5143 no hope of adding stubs. We'll error out later should the
5144 branch overflow. */
5145 if (tsec == isec)
5146 continue;
5147
5148 /* There probably isn't any reason to handle symbols in
5149 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
5150 attribute for a code section, and we are only looking at
5151 branches. However, implement it correctly here as a
5152 reference for other target relax_section functions. */
5153 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
5154 {
5155 /* At this stage in linking, no SEC_MERGE symbol has been
5156 adjusted, so all references to such symbols need to be
5157 passed through _bfd_merged_section_offset. (Later, in
5158 relocate_section, all SEC_MERGE symbols *except* for
5159 section symbols have been adjusted.)
5160
5161 gas may reduce relocations against symbols in SEC_MERGE
5162 sections to a relocation against the section symbol when
5163 the original addend was zero. When the reloc is against
5164 a section symbol we should include the addend in the
5165 offset passed to _bfd_merged_section_offset, since the
5166 location of interest is the original symbol. On the
5167 other hand, an access to "sym+addend" where "sym" is not
5168 a section symbol should not include the addend; Such an
5169 access is presumed to be an offset from "sym"; The
5170 location of interest is just "sym". */
5171 if (sym_type == STT_SECTION)
5172 toff += irel->r_addend;
7619e7c7 5173
25dbc73a
AM		 5174 toff = _bfd_merged_section_offset (abfd, &tsec,
5175 elf_section_data (tsec)->sec_info,
5176 toff);
7619e7c7 5177
25dbc73a
AM		 5178 if (sym_type != STT_SECTION)
5179 toff += irel->r_addend;
5180 }
a6aa5195
AM		 5181 /* PLTREL24 addends are special. */
5182 else if (r_type != R_PPC_PLTREL24)
25dbc73a 5183 toff += irel->r_addend;
7619e7c7 5184
7de713b9
AM		 5185 /* Attempted -shared link of non-pic code loses. */
5186 if (tsec->output_section == NULL)
5187 continue;
5188
25dbc73a 5189 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
7619e7c7 5190
25dbc73a
AM		 5191 roff = irel->r_offset;
5192 reladdr = isec->output_section->vma + isec->output_offset + roff;
7619e7c7 5193
25dbc73a
AM		 5194 /* If the branch is in range, no need to do anything. */
5195 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
5196 continue;
252b5132 5197
25dbc73a
AM		 5198 /* Look for an existing fixup to this address. */
5199 for (f = fixups; f ; f = f->next)
5200 if (f->tsec == tsec && f->toff == toff)
5201 break;
5202
5203 if (f == NULL)
7619e7c7 5204 {
25dbc73a
AM		 5205 size_t size;
5206 unsigned long stub_rtype;
252b5132 5207
25dbc73a
AM		 5208 val = trampoff - roff;
5209 if (val >= max_branch_offset)
5210 /* Oh dear, we can't reach a trampoline. Don't try to add
5211 one. We'll report an error later. */
5212 continue;
252b5132 5213
25dbc73a
AM		 5214 if (link_info->shared)
5215 {
5216 size = 4 * ARRAY_SIZE (shared_stub_entry);
5217 insn_offset = 12;
5218 stub_rtype = R_PPC_RELAX32PC;
5219 }
5220 else
5221 {
5222 size = 4 * ARRAY_SIZE (stub_entry);
5223 insn_offset = 0;
5224 stub_rtype = R_PPC_RELAX32;
5225 }
dc810e39 5226
25dbc73a
AM		 5227 if (R_PPC_RELAX32_PLT - R_PPC_RELAX32
5228 != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC)
5229 abort ();
d7128ce4
AM		 5230 if (tsec == htab->plt
5231 || tsec == htab->glink)
25dbc73a 5232 stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32;
252b5132 5233
25dbc73a
AM		 5234 /* Hijack the old relocation. Since we need two
5235 relocations for this use a "composite" reloc. */
5236 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
5237 stub_rtype);
5238 irel->r_offset = trampoff + insn_offset;
252b5132 5239
25dbc73a
AM		 5240 /* Record the fixup so we don't do it again this section. */
5241 f = bfd_malloc (sizeof (*f));
5242 f->next = fixups;
5243 f->tsec = tsec;
5244 f->toff = toff;
5245 f->trampoff = trampoff;
5246 fixups = f;
252b5132 5247
25dbc73a
AM		 5248 trampoff += size;
5249 }
5250 else
5251 {
5252 val = f->trampoff - roff;
5253 if (val >= max_branch_offset)
5254 continue;
252b5132 5255
25dbc73a
AM		 5256 /* Nop out the reloc, since we're finalizing things here. */
5257 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
5258 }
252b5132 5259
25dbc73a
AM		 5260 /* Get the section contents. */
5261 if (contents == NULL)
5262 {
5263 /* Get cached copy if it exists. */
5264 if (elf_section_data (isec)->this_hdr.contents != NULL)
5265 contents = elf_section_data (isec)->this_hdr.contents;
5266 else
5267 {
5268 /* Go get them off disk. */
5269 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
5270 goto error_return;
5271 }
5272 }
252b5132 5273
25dbc73a
AM		 5274 /* Fix up the existing branch to hit the trampoline. */
5275 hit_addr = contents + roff;
5276 switch (r_type)
5277 {
5278 case R_PPC_REL24:
5279 case R_PPC_LOCAL24PC:
5280 case R_PPC_PLTREL24:
5281 t0 = bfd_get_32 (abfd, hit_addr);
5282 t0 &= ~0x3fffffc;
5283 t0 |= val & 0x3fffffc;
5284 bfd_put_32 (abfd, t0, hit_addr);
5285 break;
252b5132 5286
25dbc73a
AM		 5287 case R_PPC_REL14:
5288 case R_PPC_REL14_BRTAKEN:
5289 case R_PPC_REL14_BRNTAKEN:
5290 t0 = bfd_get_32 (abfd, hit_addr);
5291 t0 &= ~0xfffc;
5292 t0 |= val & 0xfffc;
5293 bfd_put_32 (abfd, t0, hit_addr);
5294 break;
5295 }
5296 }
252b5132 5297
25dbc73a
AM		 5298 /* Write out the trampolines. */
5299 changed = fixups != NULL;
5300 if (fixups != NULL)
5301 {
5302 const int *stub;
5303 bfd_byte *dest;
5304 bfd_vma val;
5305 int i, size;
252b5132 5306
25dbc73a
AM		 5307 do
5308 {
5309 struct one_fixup *f = fixups;
5310 fixups = fixups->next;
5311 free (f);
5312 }
5313 while (fixups);
252b5132 5314
25dbc73a
AM		 5315 contents = bfd_realloc (contents, trampoff);
5316 if (contents == NULL)
5317 goto error_return;
252b5132 5318
25dbc73a
AM		 5319 isec->size = (isec->size + 3) & (bfd_vma) -4;
5320 /* Branch around the trampolines. */
5321 val = trampoff - isec->size + 0x48000000;
5322 dest = contents + isec->size;
5323 isec->size = trampoff;
5324 bfd_put_32 (abfd, val, dest);
5325 dest += 4;
252b5132 5326
25dbc73a
AM		 5327 if (link_info->shared)
5328 {
5329 stub = shared_stub_entry;
5330 size = ARRAY_SIZE (shared_stub_entry);
5331 }
5332 else
5333 {
5334 stub = stub_entry;
5335 size = ARRAY_SIZE (stub_entry);
5336 }
252b5132 5337
25dbc73a
AM		 5338 i = 0;
5339 while (dest < contents + trampoff)
252b5132 5340 {
25dbc73a
AM		 5341 bfd_put_32 (abfd, stub[i], dest);
5342 i++;
5343 if (i == size)
5344 i = 0;
5345 dest += 4;
252b5132 5346 }
25dbc73a 5347 BFD_ASSERT (i == 0);
252b5132
RH		 5348 }
5349
25dbc73a
AM		 5350 if (isymbuf != NULL
5351 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 5352 {
25dbc73a
AM		 5353 if (! link_info->keep_memory)
5354 free (isymbuf);
252b5132 5355 else
25dbc73a
AM		 5356 {
5357 /* Cache the symbols for elf_link_input_bfd. */
5358 symtab_hdr->contents = (unsigned char *) isymbuf;
5359 }
252b5132
RH		 5360 }
5361
25dbc73a
AM		 5362 if (contents != NULL
5363 && elf_section_data (isec)->this_hdr.contents != contents)
5364 {
5365 if (!changed && !link_info->keep_memory)
5366 free (contents);
5367 else
5368 {
5369 /* Cache the section contents for elf_link_input_bfd. */
5370 elf_section_data (isec)->this_hdr.contents = contents;
5371 }
5372 }
252b5132 5373
25dbc73a
AM		 5374 if (elf_section_data (isec)->relocs != internal_relocs)
5375 {
5376 if (!changed)
5377 free (internal_relocs);
5378 else
5379 elf_section_data (isec)->relocs = internal_relocs;
5380 }
252b5132 5381
25dbc73a 5382 *again = changed;
b34976b6 5383 return TRUE;
25dbc73a
AM		 5384
5385 error_return:
5386 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
5387 free (isymbuf);
5388 if (contents != NULL
5389 && elf_section_data (isec)->this_hdr.contents != contents)
5390 free (contents);
5391 if (internal_relocs != NULL
5392 && elf_section_data (isec)->relocs != internal_relocs)
5393 free (internal_relocs);
5394 return FALSE;
252b5132 5395}
252b5132 5396\f
8a696751
AM		 5397/* What to do when ld finds relocations against symbols defined in
5398 discarded sections. */
5399
5400static unsigned int
5401ppc_elf_action_discarded (asection *sec)
5402{
5403 if (strcmp (".fixup", sec->name) == 0)
5404 return 0;
5405
5406 if (strcmp (".got2", sec->name) == 0)
5407 return 0;
5408
5409 return _bfd_elf_default_action_discarded (sec);
5410}
c9a2f333 5411\f
25dbc73a 5412/* Fill in the address for a pointer generated in a linker section. */
252b5132 5413
25dbc73a 5414static bfd_vma
76750a2f 5415elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM		 5416 elf_linker_section_t *lsect,
5417 struct elf_link_hash_entry *h,
5418 bfd_vma relocation,
2bb04cf2 5419 const Elf_Internal_Rela *rel)
25dbc73a
AM		 5420{
5421 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 5422
25dbc73a 5423 BFD_ASSERT (lsect != NULL);
252b5132 5424
25dbc73a 5425 if (h != NULL)
252b5132 5426 {
25dbc73a
AM		 5427 /* Handle global symbol. */
5428 struct ppc_elf_link_hash_entry *eh;
252b5132 5429
25dbc73a 5430 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM		 5431 BFD_ASSERT (eh->elf.def_regular);
5432 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM		 5433 }
5434 else
5435 {
5436 /* Handle local symbol. */
5437 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 5438
25dbc73a 5439 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM		 5440 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
5441 }
252b5132 5442
76750a2f
AM		 5443 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
5444 rel->r_addend,
5445 lsect);
5446 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 5447
76750a2f
AM		 5448 /* Offset will always be a multiple of four, so use the bottom bit
5449 as a "written" flag. */
5450 if ((linker_section_ptr->offset & 1) == 0)
5451 {
5452 bfd_put_32 (lsect->section->owner,
5453 relocation + linker_section_ptr->addend,
5454 lsect->section->contents + linker_section_ptr->offset);
5455 linker_section_ptr->offset += 1;
252b5132
RH		 5456 }
5457
25dbc73a 5458 relocation = (lsect->section->output_offset
76750a2f 5459 + linker_section_ptr->offset - 1
c9a2f333 5460 - 0x8000);
252b5132 5461
25dbc73a
AM		 5462#ifdef DEBUG
5463 fprintf (stderr,
5464 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
5465 lsect->name, (long) relocation, (long) relocation);
5466#endif
252b5132 5467
25dbc73a
AM		 5468 /* Subtract out the addend, because it will get added back in by the normal
5469 processing. */
5470 return relocation - linker_section_ptr->addend;
252b5132 5471}
25dbc73a 5472
252b5132
RH		 5473/* The RELOCATE_SECTION function is called by the ELF backend linker
5474 to handle the relocations for a section.
5475
5476 The relocs are always passed as Rela structures; if the section
5477 actually uses Rel structures, the r_addend field will always be
5478 zero.
5479
5480 This function is responsible for adjust the section contents as
5481 necessary, and (if using Rela relocs and generating a
1049f94e 5482 relocatable output file) adjusting the reloc addend as
252b5132
RH		 5483 necessary.
5484
5485 This function does not have to worry about setting the reloc
5486 address or the reloc symbol index.
5487
5488 LOCAL_SYMS is a pointer to the swapped in local symbols.
5489
5490 LOCAL_SECTIONS is an array giving the section in the input file
5491 corresponding to the st_shndx field of each local symbol.
5492
5493 The global hash table entry for the global symbols can be found
5494 via elf_sym_hashes (input_bfd).
5495
1049f94e 5496 When generating relocatable output, this function must handle
252b5132
RH		 5497 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
5498 going to be the section symbol corresponding to the output
5499 section, which means that the addend must be adjusted
5500 accordingly. */
5501
b34976b6 5502static bfd_boolean
55fd94b0
AM		 5503ppc_elf_relocate_section (bfd *output_bfd,
5504 struct bfd_link_info *info,
5505 bfd *input_bfd,
5506 asection *input_section,
5507 bfd_byte *contents,
5508 Elf_Internal_Rela *relocs,
5509 Elf_Internal_Sym *local_syms,
5510 asection **local_sections)
252b5132 5511{
7619e7c7
AM		 5512 Elf_Internal_Shdr *symtab_hdr;
5513 struct elf_link_hash_entry **sym_hashes;
5514 struct ppc_elf_link_hash_table *htab;
5515 Elf_Internal_Rela *rel;
5516 Elf_Internal_Rela *relend;
5517 Elf_Internal_Rela outrel;
5518 bfd_byte *loc;
a6aa5195 5519 asection *got2, *sreloc = NULL;
252b5132 5520 bfd_vma *local_got_offsets;
b34976b6 5521 bfd_boolean ret = TRUE;
b34976b6 5522
252b5132 5523#ifdef DEBUG
d003868e
AM		 5524 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
5525 "%ld relocations%s",
5526 input_bfd, input_section,
5527 (long) input_section->reloc_count,
5528 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH		 5529#endif
5530
a6aa5195
AM		 5531 got2 = bfd_get_section_by_name (input_bfd, ".got2");
5532
1049f94e 5533 if (info->relocatable)
a6aa5195
AM		 5534 {
5535 if (got2 == NULL)
5536 return TRUE;
5537
5538 rel = relocs;
5539 relend = relocs + input_section->reloc_count;
5540 for (; rel < relend; rel++)
5541 {
5542 enum elf_ppc_reloc_type r_type;
5543
5544 r_type = ELF32_R_TYPE (rel->r_info);
5545 if (r_type == R_PPC_PLTREL24
5546 && rel->r_addend >= 32768)
5547 {
5548 /* R_PPC_PLTREL24 is rather special. If non-zero, the
5549 addend specifies the GOT pointer offset within .got2. */
5550 rel->r_addend += got2->output_offset;
5551 }
5552 }
5553 return TRUE;
5554 }
b491616a 5555
e47cd125 5556 /* Initialize howto table if not already done. */
8da6118f 5557 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH		 5558 ppc_elf_howto_init ();
5559
7619e7c7 5560 htab = ppc_elf_hash_table (info);
252b5132 5561 local_got_offsets = elf_local_got_offsets (input_bfd);
7619e7c7
AM		 5562 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
5563 sym_hashes = elf_sym_hashes (input_bfd);
5564 rel = relocs;
5565 relend = relocs + input_section->reloc_count;
252b5132
RH		 5566 for (; rel < relend; rel++)
5567 {
7619e7c7
AM		 5568 enum elf_ppc_reloc_type r_type;
5569 bfd_vma addend;
5570 bfd_reloc_status_type r;
5571 Elf_Internal_Sym *sym;
5572 asection *sec;
5573 struct elf_link_hash_entry *h;
5574 const char *sym_name;
252b5132
RH		 5575 reloc_howto_type *howto;
5576 unsigned long r_symndx;
5577 bfd_vma relocation;
7619e7c7 5578 bfd_vma branch_bit, insn, from;
7619e7c7
AM		 5579 bfd_boolean unresolved_reloc;
5580 bfd_boolean warned;
5581 unsigned int tls_type, tls_mask, tls_gd;
5582
55fd94b0
AM		 5583 r_type = ELF32_R_TYPE (rel->r_info);
5584 sym = NULL;
5585 sec = NULL;
5586 h = NULL;
7619e7c7
AM		 5587 unresolved_reloc = FALSE;
5588 warned = FALSE;
252b5132 5589 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 5590
252b5132
RH		 5591 if (r_symndx < symtab_hdr->sh_info)
5592 {
5593 sym = local_syms + r_symndx;
5594 sec = local_sections[r_symndx];
26c61ae5 5595 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 5596
8517fae7 5597 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH		 5598 }
5599 else
5600 {
b2a8e766
AM		 5601 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
5602 r_symndx, symtab_hdr, sym_hashes,
5603 h, sec, relocation,
5604 unresolved_reloc, warned);
9abc968f 5605
252b5132 5606 sym_name = h->root.root.string;
7619e7c7
AM		 5607 }
5608
5609 /* TLS optimizations. Replace instruction sequences and relocs
5610 based on information we collected in tls_optimize. We edit
5611 RELOCS so that --emit-relocs will output something sensible
5612 for the final instruction stream. */
5613 tls_mask = 0;
5614 tls_gd = 0;
5615 if (IS_PPC_TLS_RELOC (r_type))
5616 {
5617 if (h != NULL)
5618 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
5619 else if (local_got_offsets != NULL)
5620 {
5621 char *lgot_masks;
5622 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
5623 tls_mask = lgot_masks[r_symndx];
5624 }
5625 }
5626
5627 /* Ensure reloc mapping code below stays sane. */
5628 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
5629 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
5630 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
5631 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
5632 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
5633 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
5634 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
5635 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
5636 abort ();
5637 switch (r_type)
5638 {
5639 default:
5640 break;
5641
5642 case R_PPC_GOT_TPREL16:
5643 case R_PPC_GOT_TPREL16_LO:
5644 if (tls_mask != 0
5645 && (tls_mask & TLS_TPREL) == 0)
5646 {
5647 bfd_vma insn;
5648 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
5649 insn &= 31 << 21;
5650 insn |= 0x3c020000; /* addis 0,2,0 */
5651 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
5652 r_type = R_PPC_TPREL16_HA;
5653 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5654 }
5655 break;
5656
5657 case R_PPC_TLS:
5658 if (tls_mask != 0
5659 && (tls_mask & TLS_TPREL) == 0)
5660 {
5661 bfd_vma insn, rtra;
5662 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5663 if ((insn & ((31 << 26) | (31 << 11)))
5664 == ((31 << 26) | (2 << 11)))
5665 rtra = insn & ((1 << 26) - (1 << 16));
5666 else if ((insn & ((31 << 26) | (31 << 16)))
5667 == ((31 << 26) | (2 << 16)))
5668 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
5669 else
5670 abort ();
5671 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
5672 /* add -> addi. */
5673 insn = 14 << 26;
5674 else if ((insn & (31 << 1)) == 23 << 1
5675 && ((insn & (31 << 6)) < 14 << 6
5676 || ((insn & (31 << 6)) >= 16 << 6
5677 && (insn & (31 << 6)) < 24 << 6)))
5678 /* load and store indexed -> dform. */
5679 insn = (32 | ((insn >> 6) & 31)) << 26;
5680 else if ((insn & (31 << 1)) == 21 << 1
5681 && (insn & (0x1a << 6)) == 0)
5682 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
5683 insn = (((58 | ((insn >> 6) & 4)) << 26)
5684 | ((insn >> 6) & 1));
5685 else if ((insn & (31 << 1)) == 21 << 1
5686 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
5687 /* lwax -> lwa. */
5688 insn = (58 << 26) | 2;
5689 else
5690 abort ();
5691 insn |= rtra;
5692 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5693 r_type = R_PPC_TPREL16_LO;
5694 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5695 /* Was PPC_TLS which sits on insn boundary, now
5696 PPC_TPREL16_LO which is at insn+2. */
5697 rel->r_offset += 2;
5698 }
5699 break;
5700
5701 case R_PPC_GOT_TLSGD16_HI:
5702 case R_PPC_GOT_TLSGD16_HA:
5703 tls_gd = TLS_TPRELGD;
5704 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5705 goto tls_gdld_hi;
5706 break;
5707
5708 case R_PPC_GOT_TLSLD16_HI:
5709 case R_PPC_GOT_TLSLD16_HA:
5710 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5711 {
5712 tls_gdld_hi:
5713 if ((tls_mask & tls_gd) != 0)
5714 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5715 + R_PPC_GOT_TPREL16);
5716 else
5717 {
5718 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
5719 rel->r_offset -= 2;
5720 r_type = R_PPC_NONE;
5721 }
5722 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5723 }
5724 break;
5725
5726 case R_PPC_GOT_TLSGD16:
5727 case R_PPC_GOT_TLSGD16_LO:
5728 tls_gd = TLS_TPRELGD;
5729 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
5730 goto tls_get_addr_check;
5731 break;
5732
5733 case R_PPC_GOT_TLSLD16:
5734 case R_PPC_GOT_TLSLD16_LO:
5735 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
5736 {
5737 tls_get_addr_check:
5738 if (rel + 1 < relend)
5739 {
5740 enum elf_ppc_reloc_type r_type2;
5741 unsigned long r_symndx2;
5742 struct elf_link_hash_entry *h2;
87d243f1 5743 bfd_vma insn1, insn2;
7619e7c7
AM		 5744 bfd_vma offset;
5745
5746 /* The next instruction should be a call to
5747 __tls_get_addr. Peek at the reloc to be sure. */
55fd94b0 5748 r_type2 = ELF32_R_TYPE (rel[1].r_info);
7619e7c7
AM		 5749 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
5750 if (r_symndx2 < symtab_hdr->sh_info
5751 || (r_type2 != R_PPC_REL14
5752 && r_type2 != R_PPC_REL14_BRTAKEN
5753 && r_type2 != R_PPC_REL14_BRNTAKEN
5754 && r_type2 != R_PPC_REL24
5755 && r_type2 != R_PPC_PLTREL24))
5756 break;
5757
5758 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
5759 while (h2->root.type == bfd_link_hash_indirect
5760 || h2->root.type == bfd_link_hash_warning)
5761 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
5762 if (h2 == NULL || h2 != htab->tls_get_addr)
5763 break;
5764
5765 /* OK, it checks out. Replace the call. */
5766 offset = rel[1].r_offset;
5767 insn1 = bfd_get_32 (output_bfd,
5768 contents + rel->r_offset - 2);
7619e7c7
AM		 5769 if ((tls_mask & tls_gd) != 0)
5770 {
5771 /* IE */
5772 insn1 &= (1 << 26) - 1;
5773 insn1 |= 32 << 26; /* lwz */
5774 insn2 = 0x7c631214; /* add 3,3,2 */
5775 rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE);
e1710606 5776 rel[1].r_addend = 0;
7619e7c7
AM		 5777 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
5778 + R_PPC_GOT_TPREL16);
5779 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5780 }
5781 else
5782 {
5783 /* LE */
5784 insn1 = 0x3c620000; /* addis 3,2,0 */
5785 insn2 = 0x38630000; /* addi 3,3,0 */
5786 if (tls_gd == 0)
5787 {
5788 /* Was an LD reloc. */
5789 r_symndx = 0;
e1918d23 5790 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 5791 }
5792 r_type = R_PPC_TPREL16_HA;
5793 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
5794 rel[1].r_info = ELF32_R_INFO (r_symndx,
5795 R_PPC_TPREL16_LO);
5796 rel[1].r_offset += 2;
e1710606 5797 rel[1].r_addend = rel->r_addend;
7619e7c7 5798 }
7619e7c7
AM		 5799 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
5800 bfd_put_32 (output_bfd, insn2, contents + offset);
7619e7c7
AM		 5801 if (tls_gd == 0)
5802 {
5803 /* We changed the symbol on an LD reloc. Start over
70bccea4 5804 in order to get h, sym, sec etc. right. */
7619e7c7
AM		 5805 rel--;
5806 continue;
5807 }
5808 }
252b5132 5809 }
7619e7c7
AM		 5810 break;
5811 }
5812
5813 /* Handle other relocations that tweak non-addend part of insn. */
5814 branch_bit = 0;
5815 switch (r_type)
5816 {
5817 default:
5818 break;
5819
5820 /* Branch taken prediction relocations. */
5821 case R_PPC_ADDR14_BRTAKEN:
5822 case R_PPC_REL14_BRTAKEN:
5823 branch_bit = BRANCH_PREDICT_BIT;
5824 /* Fall thru */
5825
4cc11e76 5826 /* Branch not taken prediction relocations. */
7619e7c7
AM		 5827 case R_PPC_ADDR14_BRNTAKEN:
5828 case R_PPC_REL14_BRNTAKEN:
5829 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5830 insn &= ~BRANCH_PREDICT_BIT;
5831 insn |= branch_bit;
5832
5833 from = (rel->r_offset
5834 + input_section->output_offset
5835 + input_section->output_section->vma);
5836
5837 /* Invert 'y' bit if not the default. */
5838 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
5839 insn ^= BRANCH_PREDICT_BIT;
5840
5841 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5842 break;
252b5132
RH		 5843 }
5844
7619e7c7
AM		 5845 addend = rel->r_addend;
5846 tls_type = 0;
5847 howto = NULL;
55fd94b0
AM		 5848 if (r_type < R_PPC_max)
5849 howto = ppc_elf_howto_table[r_type];
7619e7c7 5850 switch (r_type)
252b5132
RH		 5851 {
5852 default:
7619e7c7 5853 (*_bfd_error_handler)
d003868e
AM		 5854 (_("%B: unknown relocation type %d for symbol %s"),
5855 input_bfd, (int) r_type, sym_name);
252b5132
RH		 5856
5857 bfd_set_error (bfd_error_bad_value);
b34976b6 5858 ret = FALSE;
252b5132
RH		 5859 continue;
5860
7619e7c7
AM		 5861 case R_PPC_NONE:
5862 case R_PPC_TLS:
5863 case R_PPC_EMB_MRKREF:
5864 case R_PPC_GNU_VTINHERIT:
5865 case R_PPC_GNU_VTENTRY:
7595d193
L		 5866 continue;
5867
7619e7c7
AM		 5868 /* GOT16 relocations. Like an ADDR16 using the symbol's
5869 address in the GOT as relocation value instead of the
5870 symbol's value itself. Also, create a GOT entry for the
5871 symbol and put the symbol value there. */
5872 case R_PPC_GOT_TLSGD16:
5873 case R_PPC_GOT_TLSGD16_LO:
5874 case R_PPC_GOT_TLSGD16_HI:
5875 case R_PPC_GOT_TLSGD16_HA:
5876 tls_type = TLS_TLS | TLS_GD;
5877 goto dogot;
5878
5879 case R_PPC_GOT_TLSLD16:
5880 case R_PPC_GOT_TLSLD16_LO:
5881 case R_PPC_GOT_TLSLD16_HI:
5882 case R_PPC_GOT_TLSLD16_HA:
5883 tls_type = TLS_TLS | TLS_LD;
5884 goto dogot;
5885
5886 case R_PPC_GOT_TPREL16:
5887 case R_PPC_GOT_TPREL16_LO:
5888 case R_PPC_GOT_TPREL16_HI:
5889 case R_PPC_GOT_TPREL16_HA:
5890 tls_type = TLS_TLS | TLS_TPREL;
5891 goto dogot;
5892
5893 case R_PPC_GOT_DTPREL16:
5894 case R_PPC_GOT_DTPREL16_LO:
5895 case R_PPC_GOT_DTPREL16_HI:
5896 case R_PPC_GOT_DTPREL16_HA:
5897 tls_type = TLS_TLS | TLS_DTPREL;
5898 goto dogot;
5899
5900 case R_PPC_GOT16:
5901 case R_PPC_GOT16_LO:
5902 case R_PPC_GOT16_HI:
5903 case R_PPC_GOT16_HA:
5904 dogot:
5905 {
5906 /* Relocation is to the entry for this symbol in the global
5907 offset table. */
5908 bfd_vma off;
5909 bfd_vma *offp;
5910 unsigned long indx;
5911
5912 if (htab->got == NULL)
5913 abort ();
5914
5915 indx = 0;
5916 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 5917 && (h == NULL
f5385ebf 5918 || !h->def_dynamic))
7619e7c7
AM		 5919 offp = &htab->tlsld_got.offset;
5920 else if (h != NULL)
5921 {
5922 bfd_boolean dyn;
5923 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 5924 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM		 5925 || (info->shared
5926 && SYMBOL_REFERENCES_LOCAL (info, h)))
5927 /* This is actually a static link, or it is a
5928 -Bsymbolic link and the symbol is defined
5929 locally, or the symbol was forced to be local
5930 because of a version file. */
5931 ;
5932 else
5933 {
5934 indx = h->dynindx;
5935 unresolved_reloc = FALSE;
5936 }
5937 offp = &h->got.offset;
5938 }
5939 else
5940 {
5941 if (local_got_offsets == NULL)
5942 abort ();
5943 offp = &local_got_offsets[r_symndx];
5944 }
5945
5946 /* The offset must always be a multiple of 4. We use the
5947 least significant bit to record whether we have already
5948 processed this entry. */
5949 off = *offp;
5950 if ((off & 1) != 0)
5951 off &= ~1;
5952 else
5953 {
70bccea4
AM		 5954 unsigned int tls_m = (tls_mask
5955 & (TLS_LD | TLS_GD | TLS_DTPREL
5956 | TLS_TPREL | TLS_TPRELGD));
5957
5958 if (offp == &htab->tlsld_got.offset)
5959 tls_m = TLS_LD;
5960 else if (h == NULL
f5385ebf 5961 || !h->def_dynamic)
70bccea4
AM		 5962 tls_m &= ~TLS_LD;
5963
5964 /* We might have multiple got entries for this sym.
5965 Initialize them all. */
5966 do
7619e7c7 5967 {
70bccea4
AM		 5968 int tls_ty = 0;
5969
5970 if ((tls_m & TLS_LD) != 0)
7619e7c7 5971 {
70bccea4
AM		 5972 tls_ty = TLS_TLS | TLS_LD;
5973 tls_m &= ~TLS_LD;
5974 }
5975 else if ((tls_m & TLS_GD) != 0)
5976 {
5977 tls_ty = TLS_TLS | TLS_GD;
5978 tls_m &= ~TLS_GD;
5979 }
5980 else if ((tls_m & TLS_DTPREL) != 0)
5981 {
5982 tls_ty = TLS_TLS | TLS_DTPREL;
5983 tls_m &= ~TLS_DTPREL;
5984 }
5985 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
5986 {
5987 tls_ty = TLS_TLS | TLS_TPREL;
5988 tls_m = 0;
7619e7c7 5989 }
7619e7c7 5990
70bccea4 5991 /* Generate relocs for the dynamic linker. */
4e795f50
AM		 5992 if ((info->shared || indx != 0)
5993 && (h == NULL
5994 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5995 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 5996 {
70bccea4
AM		 5997 outrel.r_offset = (htab->got->output_section->vma
5998 + htab->got->output_offset
5999 + off);
e515b051 6000 outrel.r_addend = 0;
70bccea4
AM		 6001 if (tls_ty & (TLS_LD | TLS_GD))
6002 {
6003 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM		 6004 if (tls_ty == (TLS_TLS | TLS_GD))
6005 {
6006 loc = htab->relgot->contents;
6007 loc += (htab->relgot->reloc_count++
6008 * sizeof (Elf32_External_Rela));
6009 bfd_elf32_swap_reloca_out (output_bfd,
6010 &outrel, loc);
e515b051 6011 outrel.r_offset += 4;
70bccea4
AM		 6012 outrel.r_info
6013 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM		 6014 }
6015 }
6016 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
6017 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
6018 else if (tls_ty == (TLS_TLS | TLS_TPREL))
6019 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
6020 else if (indx == 0)
6021 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
6022 else
6023 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
70bccea4 6024 if (indx == 0)
e515b051
AM		 6025 {
6026 outrel.r_addend += relocation;
6027 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 6028 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 6029 }
70bccea4
AM		 6030 loc = htab->relgot->contents;
6031 loc += (htab->relgot->reloc_count++
6032 * sizeof (Elf32_External_Rela));
6033 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM		 6034 }
6035
70bccea4
AM		 6036 /* Init the .got section contents if we're not
6037 emitting a reloc. */
6038 else
7619e7c7 6039 {
70bccea4
AM		 6040 bfd_vma value = relocation;
6041
7b609f53
AM		 6042 if (tls_ty == (TLS_TLS | TLS_LD))
6043 value = 1;
6044 else if (tls_ty != 0)
70bccea4 6045 {
e1918d23 6046 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 6047 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 6048 value += DTP_OFFSET - TP_OFFSET;
70bccea4 6049
7b609f53
AM		 6050 if (tls_ty == (TLS_TLS | TLS_GD))
6051 {
6052 bfd_put_32 (output_bfd, value,
6053 htab->got->contents + off + 4);
6054 value = 1;
6055 }
70bccea4 6056 }
70bccea4
AM		 6057 bfd_put_32 (output_bfd, value,
6058 htab->got->contents + off);
7619e7c7 6059 }
70bccea4
AM		 6060
6061 off += 4;
6062 if (tls_ty & (TLS_LD | TLS_GD))
6063 off += 4;
7619e7c7 6064 }
70bccea4
AM		 6065 while (tls_m != 0);
6066
6067 off = *offp;
6068 *offp = off | 1;
7619e7c7
AM		 6069 }
6070
6071 if (off >= (bfd_vma) -2)
6072 abort ();
6073
70bccea4
AM		 6074 if ((tls_type & TLS_TLS) != 0)
6075 {
6076 if (tls_type != (TLS_TLS | TLS_LD))
6077 {
6078 if ((tls_mask & TLS_LD) != 0
6079 && !(h == NULL
f5385ebf 6080 || !h->def_dynamic))
70bccea4
AM		 6081 off += 8;
6082 if (tls_type != (TLS_TLS | TLS_GD))
6083 {
6084 if ((tls_mask & TLS_GD) != 0)
6085 off += 8;
6086 if (tls_type != (TLS_TLS | TLS_DTPREL))
6087 {
6088 if ((tls_mask & TLS_DTPREL) != 0)
6089 off += 4;
6090 }
6091 }
6092 }
6093 }
6094
3b36f7e6
AM		 6095 relocation = htab->got->output_offset + off;
6096 relocation -= htab->elf.hgot->root.u.def.value;
7619e7c7
AM		 6097
6098 /* Addends on got relocations don't make much sense.
6099 x+off@got is actually x@got+off, and since the got is
6100 generated by a hash table traversal, the value in the
6101 got at entry m+n bears little relation to the entry m. */
6102 if (addend != 0)
6103 (*_bfd_error_handler)
d003868e
AM		 6104 (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"),
6105 input_bfd,
6106 input_section,
7619e7c7 6107 (long) rel->r_offset,
7b609f53 6108 howto->name,
7619e7c7
AM		 6109 sym_name);
6110 }
70bccea4 6111 break;
7619e7c7 6112
252b5132 6113 /* Relocations that need no special processing. */
7619e7c7 6114 case R_PPC_LOCAL24PC:
252b5132
RH		 6115 /* It makes no sense to point a local relocation
6116 at a symbol not in this object. */
7b609f53 6117 if (unresolved_reloc)
252b5132 6118 {
464e1740
ILT		 6119 if (! (*info->callbacks->undefined_symbol) (info,
6120 h->root.root.string,
6121 input_bfd,
6122 input_section,
5cc7c785 6123 rel->r_offset,
b34976b6
AM		 6124 TRUE))
6125 return FALSE;
252b5132
RH		 6126 continue;
6127 }
6128 break;
6129
7619e7c7
AM		 6130 case R_PPC_DTPREL16:
6131 case R_PPC_DTPREL16_LO:
6132 case R_PPC_DTPREL16_HI:
6133 case R_PPC_DTPREL16_HA:
e1918d23 6134 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6135 break;
6136
70bccea4
AM		 6137 /* Relocations that may need to be propagated if this is a shared
6138 object. */
7619e7c7
AM		 6139 case R_PPC_TPREL16:
6140 case R_PPC_TPREL16_LO:
6141 case R_PPC_TPREL16_HI:
6142 case R_PPC_TPREL16_HA:
e1918d23 6143 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6144 /* The TPREL16 relocs shouldn't really be used in shared
6145 libs as they will result in DT_TEXTREL being set, but
6146 support them anyway. */
6147 goto dodyn;
6148
6149 case R_PPC_TPREL32:
e1918d23 6150 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 6151 goto dodyn;
6152
6153 case R_PPC_DTPREL32:
e1918d23 6154 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 6155 goto dodyn;
6156
e515b051
AM		 6157 case R_PPC_DTPMOD32:
6158 relocation = 1;
6159 addend = 0;
6160 goto dodyn;
6161
d7128ce4
AM		 6162 case R_PPC_REL16:
6163 case R_PPC_REL16_LO:
6164 case R_PPC_REL16_HI:
6165 case R_PPC_REL16_HA:
6166 break;
6167
7619e7c7
AM		 6168 case R_PPC_REL24:
6169 case R_PPC_REL32:
6170 case R_PPC_REL14:
6171 case R_PPC_REL14_BRTAKEN:
6172 case R_PPC_REL14_BRNTAKEN:
252b5132
RH		 6173 /* If these relocations are not to a named symbol, they can be
6174 handled right here, no need to bother the dynamic linker. */
f6c52c13 6175 if (SYMBOL_REFERENCES_LOCAL (info, h)
3b36f7e6 6176 || h == htab->elf.hgot)
252b5132 6177 break;
70bccea4 6178 /* fall through */
252b5132 6179
70bccea4
AM		 6180 /* Relocations that always need to be propagated if this is a shared
6181 object. */
7619e7c7
AM		 6182 case R_PPC_ADDR32:
6183 case R_PPC_ADDR24:
6184 case R_PPC_ADDR16:
6185 case R_PPC_ADDR16_LO:
6186 case R_PPC_ADDR16_HI:
6187 case R_PPC_ADDR16_HA:
6188 case R_PPC_ADDR14:
6189 case R_PPC_ADDR14_BRTAKEN:
6190 case R_PPC_ADDR14_BRNTAKEN:
6191 case R_PPC_UADDR32:
6192 case R_PPC_UADDR16:
ee05f2fe
AM		 6193 /* r_symndx will be zero only for relocs against symbols
6194 from removed linkonce sections, or sections discarded by
6195 a linker script. */
7619e7c7 6196 dodyn:
ee05f2fe
AM		 6197 if (r_symndx == 0)
6198 break;
6199 /* Fall thru. */
6200
c87b5a93
AM		 6201 if ((input_section->flags & SEC_ALLOC) == 0)
6202 break;
6203 /* Fall thru. */
6204
ee05f2fe 6205 if ((info->shared
4e795f50
AM		 6206 && (h == NULL
6207 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6208 || h->root.type != bfd_link_hash_undefweak)
ee05f2fe 6209 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 6210 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM		 6211 || (ELIMINATE_COPY_RELOCS
6212 && !info->shared
ee05f2fe
AM		 6213 && h != NULL
6214 && h->dynindx != -1
f5385ebf
AM		 6215 && !h->non_got_ref
6216 && h->def_dynamic
6217 && !h->def_regular))
252b5132 6218 {
0bb2d96a 6219 int skip;
252b5132
RH		 6220
6221#ifdef DEBUG
55fd94b0
AM		 6222 fprintf (stderr, "ppc_elf_relocate_section needs to "
6223 "create relocation for %s\n",
70bccea4
AM		 6224 (h && h->root.root.string
6225 ? h->root.root.string : "<unknown>"));
252b5132
RH		 6226#endif
6227
6228 /* When generating a shared object, these relocations
70bccea4
AM		 6229 are copied into the output file to be resolved at run
6230 time. */
252b5132
RH		 6231 if (sreloc == NULL)
6232 {
6233 const char *name;
6234
6235 name = (bfd_elf_string_from_elf_section
6236 (input_bfd,
6237 elf_elfheader (input_bfd)->e_shstrndx,
6238 elf_section_data (input_section)->rel_hdr.sh_name));
6239 if (name == NULL)
b34976b6 6240 return FALSE;
252b5132
RH		 6241
6242 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
6243 && strcmp (bfd_get_section_name (input_bfd,
6244 input_section),
6245 name + 5) == 0);
6246
7619e7c7 6247 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
252b5132
RH		 6248 BFD_ASSERT (sreloc != NULL);
6249 }
6250
0bb2d96a 6251 skip = 0;
252b5132 6252
c629eae0
JJ		 6253 outrel.r_offset =
6254 _bfd_elf_section_offset (output_bfd, info, input_section,
6255 rel->r_offset);
0bb2d96a
JJ		 6256 if (outrel.r_offset == (bfd_vma) -1
6257 || outrel.r_offset == (bfd_vma) -2)
6258 skip = (int) outrel.r_offset;
252b5132
RH		 6259 outrel.r_offset += (input_section->output_section->vma
6260 + input_section->output_offset);
6261
6262 if (skip)
6263 memset (&outrel, 0, sizeof outrel);
f6c52c13 6264 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 6265 {
7619e7c7 6266 unresolved_reloc = FALSE;
252b5132
RH		 6267 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
6268 outrel.r_addend = rel->r_addend;
6269 }
6270 else
6271 {
47388f4c
AM		 6272 outrel.r_addend = relocation + rel->r_addend;
6273
252b5132 6274 if (r_type == R_PPC_ADDR32)
47388f4c 6275 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH		 6276 else
6277 {
6278 long indx;
6279
47388f4c 6280 if (bfd_is_abs_section (sec))
252b5132
RH		 6281 indx = 0;
6282 else if (sec == NULL || sec->owner == NULL)
6283 {
6284 bfd_set_error (bfd_error_bad_value);
b34976b6 6285 return FALSE;
252b5132
RH		 6286 }
6287 else
6288 {
6289 asection *osec;
6290
47388f4c
AM		 6291 /* We are turning this relocation into one
6292 against a section symbol. It would be
6293 proper to subtract the symbol's value,
6294 osec->vma, from the emitted reloc addend,
6295 but ld.so expects buggy relocs. */
252b5132
RH		 6296 osec = sec->output_section;
6297 indx = elf_section_data (osec)->dynindx;
8da6118f 6298 BFD_ASSERT (indx > 0);
252b5132
RH		 6299#ifdef DEBUG
6300 if (indx <= 0)
e460dd0d 6301 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM		 6302 indx, osec->name, osec->flags,
6303 h->root.root.string);
252b5132
RH		 6304#endif
6305 }
6306
6307 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132
RH		 6308 }
6309 }
6310
947216bf
AM		 6311 loc = sreloc->contents;
6312 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
6313 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 6314
2243deae 6315 if (skip == -1)
252b5132 6316 continue;
2243deae
L		 6317
6318 /* This reloc will be computed at runtime. We clear the memory
6319 so that it contains predictable value. */
6320 if (! skip
6321 && ((input_section->flags & SEC_ALLOC) != 0
6322 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
6323 {
6324 relocation = howto->pc_relative ? outrel.r_offset : 0;
6325 addend = 0;
6326 break;
6327 }
252b5132 6328 }
252b5132
RH		 6329 break;
6330
b4a38de6
AM		 6331 case R_PPC_RELAX32PC_PLT:
6332 case R_PPC_RELAX32_PLT:
a6aa5195
AM		 6333 {
6334 struct plt_entry *ent = find_plt_ent (h, got2, addend);
6335
4a3dc543 6336 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6337 relocation = (htab->glink->output_section->vma
6338 + htab->glink->output_offset
6339 + ent->glink_offset);
6340 else
6341 relocation = (htab->plt->output_section->vma
6342 + htab->plt->output_offset
6343 + ent->plt.offset);
6344 addend = 0;
6345 }
b4a38de6
AM		 6346 if (r_type == R_PPC_RELAX32_PLT)
6347 goto relax32;
6348 /* Fall thru */
6349
f31a141e
AM		 6350 case R_PPC_RELAX32PC:
6351 relocation -= (input_section->output_section->vma
6352 + input_section->output_offset
6353 + rel->r_offset - 4);
6354 /* Fall thru */
b4a38de6 6355
deaaf2f3 6356 case R_PPC_RELAX32:
b4a38de6 6357 relax32:
9abc968f
AM		 6358 {
6359 unsigned long t0;
6360 unsigned long t1;
6361
6362 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
6363 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
6364
6365 /* We're clearing the bits for R_PPC_ADDR16_HA
6366 and R_PPC_ADDR16_LO here. */
6367 t0 &= ~0xffff;
6368 t1 &= ~0xffff;
6369
6370 /* t0 is HA, t1 is LO */
6371 relocation += addend;
6372 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
6373 t1 |= relocation & 0xffff;
6374
6375 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
6376 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
6377 }
8517fae7 6378 continue;
deaaf2f3 6379
70bccea4 6380 /* Indirect .sdata relocation. */
7619e7c7 6381 case R_PPC_EMB_SDAI16:
c9a2f333 6382 BFD_ASSERT (htab->sdata[0].section != NULL);
7619e7c7 6383 relocation
76750a2f
AM		 6384 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
6385 h, relocation, rel);
252b5132
RH		 6386 break;
6387
70bccea4 6388 /* Indirect .sdata2 relocation. */
7619e7c7 6389 case R_PPC_EMB_SDA2I16:
c9a2f333 6390 BFD_ASSERT (htab->sdata[1].section != NULL);
7619e7c7 6391 relocation
76750a2f
AM		 6392 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
6393 h, relocation, rel);
252b5132
RH		 6394 break;
6395
70bccea4
AM		 6396 /* Handle the TOC16 reloc. We want to use the offset within the .got
6397 section, not the actual VMA. This is appropriate when generating
6398 an embedded ELF object, for which the .got section acts like the
6399 AIX .toc section. */
7619e7c7 6400 case R_PPC_TOC16: /* phony GOT16 relocations */
55fd94b0 6401 BFD_ASSERT (sec != NULL);
252b5132
RH		 6402 BFD_ASSERT (bfd_is_und_section (sec)
6403 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 6404 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 6405
70bccea4 6406 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH		 6407 break;
6408
7619e7c7 6409 case R_PPC_PLTREL24:
252b5132 6410 /* Relocation is to the entry for this symbol in the
70bccea4 6411 procedure linkage table. */
a6aa5195
AM		 6412 {
6413 struct plt_entry *ent = find_plt_ent (h, got2, addend);
252b5132 6414
a6aa5195
AM		 6415 addend = 0;
6416 if (ent == NULL
6417 || htab->plt == NULL)
6418 {
6419 /* We didn't make a PLT entry for this symbol. This
6420 happens when statically linking PIC code, or when
6421 using -Bsymbolic. */
6422 break;
6423 }
252b5132 6424
a6aa5195 6425 unresolved_reloc = FALSE;
4a3dc543 6426 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6427 relocation = (htab->glink->output_section->vma
6428 + htab->glink->output_offset
6429 + ent->glink_offset);
6430 else
6431 relocation = (htab->plt->output_section->vma
6432 + htab->plt->output_offset
6433 + ent->plt.offset);
6434 }
8da6118f 6435 break;
252b5132 6436
70bccea4 6437 /* Relocate against _SDA_BASE_. */
7619e7c7 6438 case R_PPC_SDAREL16:
252b5132
RH		 6439 {
6440 const char *name;
046183de 6441 struct elf_link_hash_entry *sh;
252b5132 6442
55fd94b0 6443 BFD_ASSERT (sec != NULL);
252b5132 6444 name = bfd_get_section_name (abfd, sec->output_section);
5f819128
AM		 6445 if (! ((strncmp (name, ".sdata", 6) == 0
6446 && (name[6] == 0 || name[6] == '.'))
6447 || (strncmp (name, ".sbss", 5) == 0
6448 && (name[5] == 0 || name[5] == '.'))))
252b5132 6449 {
55fd94b0 6450 (*_bfd_error_handler)
d003868e 6451 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6452 "in the wrong output section (%s)"),
d003868e 6453 input_bfd,
55fd94b0
AM		 6454 sym_name,
6455 howto->name,
6456 name);
252b5132 6457 }
046183de
AM		 6458 sh = htab->sdata[0].sym;
6459 addend -= (sh->root.u.def.value
6460 + sh->root.u.def.section->output_offset
6461 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6462 }
6463 break;
6464
70bccea4 6465 /* Relocate against _SDA2_BASE_. */
7619e7c7 6466 case R_PPC_EMB_SDA2REL:
252b5132
RH		 6467 {
6468 const char *name;
046183de 6469 struct elf_link_hash_entry *sh;
252b5132 6470
55fd94b0 6471 BFD_ASSERT (sec != NULL);
252b5132 6472 name = bfd_get_section_name (abfd, sec->output_section);
5f819128
AM		 6473 if (! (strncmp (name, ".sdata2", 7) == 0
6474 || strncmp (name, ".sbss2", 6) == 0))
252b5132 6475 {
55fd94b0 6476 (*_bfd_error_handler)
d003868e 6477 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6478 "in the wrong output section (%s)"),
d003868e 6479 input_bfd,
55fd94b0
AM		 6480 sym_name,
6481 howto->name,
6482 name);
c3668558 6483
252b5132 6484 bfd_set_error (bfd_error_bad_value);
b34976b6 6485 ret = FALSE;
252b5132
RH		 6486 continue;
6487 }
046183de
AM		 6488 sh = htab->sdata[1].sym;
6489 addend -= (sh->root.u.def.value
6490 + sh->root.u.def.section->output_offset
6491 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6492 }
6493 break;
6494
70bccea4 6495 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM		 6496 case R_PPC_EMB_SDA21:
6497 case R_PPC_EMB_RELSDA:
252b5132
RH		 6498 {
6499 const char *name;
6500 int reg;
046183de 6501 struct elf_link_hash_entry *sh;
252b5132 6502
55fd94b0 6503 BFD_ASSERT (sec != NULL);
252b5132 6504 name = bfd_get_section_name (abfd, sec->output_section);
b34976b6 6505 if (((strncmp (name, ".sdata", 6) == 0
5f819128
AM		 6506 && (name[6] == 0 || name[6] == '.'))
6507 || (strncmp (name, ".sbss", 5) == 0
6508 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH		 6509 {
6510 reg = 13;
046183de
AM		 6511 sh = htab->sdata[0].sym;
6512 addend -= (sh->root.u.def.value
6513 + sh->root.u.def.section->output_offset
6514 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6515 }
6516
5f819128
AM		 6517 else if (strncmp (name, ".sdata2", 7) == 0
6518 || strncmp (name, ".sbss2", 6) == 0)
252b5132
RH		 6519 {
6520 reg = 2;
046183de
AM		 6521 sh = htab->sdata[1].sym;
6522 addend -= (sh->root.u.def.value
6523 + sh->root.u.def.section->output_offset
6524 + sh->root.u.def.section->output_section->vma);
252b5132
RH		 6525 }
6526
8da6118f
KH		 6527 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
6528 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH		 6529 {
6530 reg = 0;
6531 }
6532
6533 else
6534 {
55fd94b0 6535 (*_bfd_error_handler)
d003868e 6536 (_("%B: the target (%s) of a %s relocation is "
55fd94b0 6537 "in the wrong output section (%s)"),
d003868e 6538 input_bfd,
55fd94b0
AM		 6539 sym_name,
6540 howto->name,
6541 name);
252b5132
RH		 6542
6543 bfd_set_error (bfd_error_bad_value);
b34976b6 6544 ret = FALSE;
252b5132
RH		 6545 continue;
6546 }
6547
6548 if (r_type == R_PPC_EMB_SDA21)
6549 { /* fill in register field */
7619e7c7 6550 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 6551 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 6552 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH		 6553 }
6554 }
6555 break;
6556
70bccea4 6557 /* Relocate against the beginning of the section. */
7619e7c7
AM		 6558 case R_PPC_SECTOFF:
6559 case R_PPC_SECTOFF_LO:
6560 case R_PPC_SECTOFF_HI:
6561 case R_PPC_SECTOFF_HA:
55fd94b0 6562 BFD_ASSERT (sec != NULL);
252b5132 6563 addend -= sec->output_section->vma;
252b5132
RH		 6564 break;
6565
70bccea4 6566 /* Negative relocations. */
7619e7c7
AM		 6567 case R_PPC_EMB_NADDR32:
6568 case R_PPC_EMB_NADDR16:
6569 case R_PPC_EMB_NADDR16_LO:
6570 case R_PPC_EMB_NADDR16_HI:
6571 case R_PPC_EMB_NADDR16_HA:
8da6118f 6572 addend -= 2 * relocation;
252b5132
RH		 6573 break;
6574
7619e7c7
AM		 6575 case R_PPC_COPY:
6576 case R_PPC_GLOB_DAT:
6577 case R_PPC_JMP_SLOT:
6578 case R_PPC_RELATIVE:
6579 case R_PPC_PLT32:
6580 case R_PPC_PLTREL32:
6581 case R_PPC_PLT16_LO:
6582 case R_PPC_PLT16_HI:
6583 case R_PPC_PLT16_HA:
6584 case R_PPC_ADDR30:
6585 case R_PPC_EMB_RELSEC16:
6586 case R_PPC_EMB_RELST_LO:
6587 case R_PPC_EMB_RELST_HI:
6588 case R_PPC_EMB_RELST_HA:
6589 case R_PPC_EMB_BIT_FLD:
6590 (*_bfd_error_handler)
d003868e
AM		 6591 (_("%B: relocation %s is not yet supported for symbol %s."),
6592 input_bfd,
7619e7c7
AM		 6593 howto->name,
6594 sym_name);
252b5132
RH		 6595
6596 bfd_set_error (bfd_error_invalid_operation);
b34976b6 6597 ret = FALSE;
252b5132 6598 continue;
7619e7c7 6599 }
252b5132 6600
7619e7c7
AM		 6601 /* Do any further special processing. */
6602 switch (r_type)
6603 {
6604 default:
6605 break;
6606
6607 case R_PPC_ADDR16_HA:
d7128ce4 6608 case R_PPC_REL16_HA:
7619e7c7
AM		 6609 case R_PPC_GOT16_HA:
6610 case R_PPC_PLT16_HA:
6611 case R_PPC_SECTOFF_HA:
6612 case R_PPC_TPREL16_HA:
6613 case R_PPC_DTPREL16_HA:
6614 case R_PPC_GOT_TLSGD16_HA:
6615 case R_PPC_GOT_TLSLD16_HA:
6616 case R_PPC_GOT_TPREL16_HA:
6617 case R_PPC_GOT_DTPREL16_HA:
6618 case R_PPC_EMB_NADDR16_HA:
6619 case R_PPC_EMB_RELST_HA:
6620 /* It's just possible that this symbol is a weak symbol
7b609f53 6621 that's not actually defined anywhere. In that case,
7619e7c7
AM		 6622 'sec' would be NULL, and we should leave the symbol
6623 alone (it will be set to zero elsewhere in the link). */
6624 if (sec != NULL)
e515b051
AM		 6625 /* Add 0x10000 if sign bit in 0:15 is set.
6626 Bits 0:15 are not used. */
6627 addend += 0x8000;
7619e7c7 6628 break;
252b5132
RH		 6629 }
6630
252b5132 6631#ifdef DEBUG
55fd94b0
AM		 6632 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
6633 "offset = %ld, addend = %ld\n",
252b5132 6634 howto->name,
8da6118f 6635 (int) r_type,
252b5132
RH		 6636 sym_name,
6637 r_symndx,
7619e7c7 6638 (long) rel->r_offset,
8da6118f 6639 (long) addend);
252b5132
RH		 6640#endif
6641
7619e7c7
AM		 6642 if (unresolved_reloc
6643 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 6644 && h->def_dynamic))
7619e7c7
AM		 6645 {
6646 (*_bfd_error_handler)
d003868e
AM		 6647 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
6648 input_bfd,
6649 input_section,
7619e7c7 6650 (long) rel->r_offset,
7b609f53 6651 howto->name,
7619e7c7
AM		 6652 sym_name);
6653 ret = FALSE;
6654 }
6655
252b5132
RH		 6656 r = _bfd_final_link_relocate (howto,
6657 input_bfd,
6658 input_section,
6659 contents,
7619e7c7 6660 rel->r_offset,
252b5132
RH		 6661 relocation,
6662 addend);
6663
7619e7c7 6664 if (r != bfd_reloc_ok)
252b5132 6665 {
7619e7c7 6666 if (r == bfd_reloc_overflow)
252b5132 6667 {
7619e7c7
AM		 6668 if (warned)
6669 continue;
6670 if (h != NULL
6671 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH		 6672 && howto->pc_relative)
6673 {
6674 /* Assume this is a call protected by other code that
6675 detect the symbol is undefined. If this is the case,
6676 we can safely ignore the overflow. If not, the
6677 program is hosed anyway, and a little warning isn't
6678 going to help. */
252b5132 6679
dc1bc0c9
RH		 6680 continue;
6681 }
252b5132 6682
7619e7c7 6683 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 6684 (h ? &h->root : NULL),
7619e7c7
AM		 6685 sym_name,
6686 howto->name,
6687 rel->r_addend,
6688 input_bfd,
6689 input_section,
6690 rel->r_offset))
6691 return FALSE;
dc1bc0c9
RH		 6692 }
6693 else
6694 {
7619e7c7 6695 (*_bfd_error_handler)
d003868e
AM		 6696 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
6697 input_bfd, input_section,
7b609f53 6698 (long) rel->r_offset, howto->name, sym_name, (int) r);
7619e7c7 6699 ret = FALSE;
252b5132
RH		 6700 }
6701 }
6702 }
6703
252b5132
RH		 6704#ifdef DEBUG
6705 fprintf (stderr, "\n");
6706#endif
6707
6708 return ret;
6709}
252b5132 6710\f
a6aa5195
AM		 6711#define PPC_LO(v) ((v) & 0xffff)
6712#define PPC_HI(v) (((v) >> 16) & 0xffff)
6713#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6714
25dbc73a
AM		 6715/* Finish up dynamic symbol handling. We set the contents of various
6716 dynamic sections here. */
c5fccbec 6717
b34976b6 6718static bfd_boolean
25dbc73a
AM		 6719ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
6720 struct bfd_link_info *info,
6721 struct elf_link_hash_entry *h,
6722 Elf_Internal_Sym *sym)
e1a9cb8e 6723{
25dbc73a 6724 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM		 6725 struct plt_entry *ent;
6726 bfd_boolean doneone;
e1a9cb8e 6727
25dbc73a
AM		 6728#ifdef DEBUG
6729 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
6730 h->root.root.string);
6731#endif
e1a9cb8e 6732
25dbc73a
AM		 6733 htab = ppc_elf_hash_table (info);
6734 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 6735
a6aa5195
AM		 6736 doneone = FALSE;
6737 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6738 if (ent->plt.offset != (bfd_vma) -1)
6739 {
6740 if (!doneone)
6741 {
6742 Elf_Internal_Rela rela;
6743 bfd_byte *loc;
6744 bfd_vma reloc_index;
e1a9cb8e 6745
4a3dc543 6746 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 6747 reloc_index = ent->plt.offset / 4;
6748 else
6749 {
6750 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
6751 / htab->plt_slot_size);
6752 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 6753 && htab->plt_type == PLT_OLD)
9d8504b1
PB		 6754 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
6755 }
6756
a6aa5195
AM		 6757 /* This symbol has an entry in the procedure linkage table.
6758 Set it up. */
4a3dc543 6759 if (htab->plt_type == PLT_VXWORKS)
a6aa5195 6760 {
9d8504b1
PB		 6761 bfd_vma got_offset;
6762 const bfd_vma *plt_entry;
6763
6764 /* The first three entries in .got.plt are reserved. */
6765 got_offset = (reloc_index + 3) * 4;
6766
6767 /* Use the right PLT. */
6768 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
6769 : ppc_elf_vxworks_plt_entry;
6770
6771 /* Fill in the .plt on VxWorks. */
6772 if (info->shared)
6773 {
6774 bfd_vma got_offset_hi = (got_offset >> 16)
6775 + ((got_offset & 0x8000) >> 15);
6776
6777 bfd_put_32 (output_bfd,
6778 plt_entry[0] | (got_offset_hi & 0xffff),
6779 htab->plt->contents + ent->plt.offset + 0);
6780 bfd_put_32 (output_bfd,
6781 plt_entry[1] | (got_offset & 0xffff),
6782 htab->plt->contents + ent->plt.offset + 4);
6783 }
6784 else
6785 {
636ce3f5
AM		 6786 bfd_vma got_loc
6787 = (got_offset
6788 + htab->elf.hgot->root.u.def.value
6789 + htab->elf.hgot->root.u.def.section->output_offset
6790 + htab->elf.hgot->root.u.def.section->output_section->vma);
9d8504b1
PB		 6791 bfd_vma got_loc_hi = (got_loc >> 16)
6792 + ((got_loc & 0x8000) >> 15);
6793
6794 bfd_put_32 (output_bfd,
6795 plt_entry[0] | (got_loc_hi & 0xffff),
6796 htab->plt->contents + ent->plt.offset + 0);
6797 bfd_put_32 (output_bfd,
6798 plt_entry[1] | (got_loc & 0xffff),
6799 htab->plt->contents + ent->plt.offset + 4);
6800 }
6801
6802 bfd_put_32 (output_bfd, plt_entry[2],
6803 htab->plt->contents + ent->plt.offset + 8);
6804 bfd_put_32 (output_bfd, plt_entry[3],
6805 htab->plt->contents + ent->plt.offset + 12);
6806
6807 /* This instruction is an immediate load. The value loaded is
6808 the byte offset of the R_PPC_JMP_SLOT relocation from the
6809 start of the .rela.plt section. The value is stored in the
6810 low-order 16 bits of the load instruction. */
6811 /* NOTE: It appears that this is now an index rather than a
6812 prescaled offset. */
6813 bfd_put_32 (output_bfd,
6814 plt_entry[4] | reloc_index,
6815 htab->plt->contents + ent->plt.offset + 16);
6816 /* This instruction is a PC-relative branch whose target is
6817 the start of the PLT section. The address of this branch
6818 instruction is 20 bytes beyond the start of this PLT entry.
6819 The address is encoded in bits 6-29, inclusive. The value
6820 stored is right-shifted by two bits, permitting a 26-bit
6821 offset. */
6822 bfd_put_32 (output_bfd,
6823 (plt_entry[5]
6824 | (-(ent->plt.offset + 20) & 0x03fffffc)),
6825 htab->plt->contents + ent->plt.offset + 20);
6826 bfd_put_32 (output_bfd, plt_entry[6],
6827 htab->plt->contents + ent->plt.offset + 24);
6828 bfd_put_32 (output_bfd, plt_entry[7],
6829 htab->plt->contents + ent->plt.offset + 28);
6830
6831 /* Fill in the GOT entry corresponding to this PLT slot with
6832 the address immediately after the the "bctr" instruction
6833 in this PLT entry. */
6834 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
6835 + htab->plt->output_offset
6836 + ent->plt.offset + 16),
6837 htab->sgotplt->contents + got_offset);
6838
6839 if (!info->shared)
6840 {
6841 /* Fill in a couple of entries in .rela.plt.unloaded. */
6842 loc = htab->srelplt2->contents
6843 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
6844 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
6845 * sizeof (Elf32_External_Rela));
6846
6847 /* Provide the @ha relocation for the first instruction. */
6848 rela.r_offset = (htab->plt->output_section->vma
6849 + htab->plt->output_offset
6850 + ent->plt.offset + 2);
636ce3f5 6851 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 6852 R_PPC_ADDR16_HA);
6853 rela.r_addend = got_offset;
6854 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
6855 loc += sizeof (Elf32_External_Rela);
6856
6857 /* Provide the @l relocation for the second instruction. */
6858 rela.r_offset = (htab->plt->output_section->vma
6859 + htab->plt->output_offset
6860 + ent->plt.offset + 6);
636ce3f5 6861 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 6862 R_PPC_ADDR16_LO);
6863 rela.r_addend = got_offset;
6864 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
6865 loc += sizeof (Elf32_External_Rela);
6866
6867 /* Provide a relocation for the GOT entry corresponding to this
6868 PLT slot. Point it at the middle of the .plt entry. */
6869 rela.r_offset = (htab->sgotplt->output_section->vma
6870 + htab->sgotplt->output_offset
6871 + got_offset);
7325306f 6872 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB		 6873 R_PPC_ADDR32);
6874 rela.r_addend = ent->plt.offset + 16;
6875 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
6876 }
6877
6878 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
6879 In particular, the offset for the relocation is not the
6880 address of the PLT entry for this function, as specified
6881 by the ABI. Instead, the offset is set to the address of
6882 the GOT slot for this function. See EABI 4.4.4.1. */
6883 rela.r_offset = (htab->sgotplt->output_section->vma
6884 + htab->sgotplt->output_offset
6885 + got_offset);
6886
a6aa5195
AM		 6887 }
6888 else
6889 {
9d8504b1
PB		 6890 rela.r_offset = (htab->plt->output_section->vma
6891 + htab->plt->output_offset
6892 + ent->plt.offset);
4a3dc543 6893 if (htab->plt_type == PLT_OLD)
9d8504b1
PB		 6894 {
6895 /* We don't need to fill in the .plt. The ppc dynamic
6896 linker will fill it in. */
6897 }
6898 else
6899 {
6900 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
6901 + htab->glink->output_section->vma
6902 + htab->glink->output_offset);
6903 bfd_put_32 (output_bfd, val,
6904 htab->plt->contents + ent->plt.offset);
6905 }
a6aa5195 6906 }
e1a9cb8e 6907
a6aa5195 6908 /* Fill in the entry in the .rela.plt section. */
a6aa5195
AM		 6909 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
6910 rela.r_addend = 0;
e1a9cb8e 6911
a6aa5195
AM		 6912 loc = (htab->relplt->contents
6913 + reloc_index * sizeof (Elf32_External_Rela));
6914 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 6915
a6aa5195
AM		 6916 if (!h->def_regular)
6917 {
6918 /* Mark the symbol as undefined, rather than as defined in
6919 the .plt section. Leave the value alone. */
6920 sym->st_shndx = SHN_UNDEF;
6921 /* If the symbol is weak, we do need to clear the value.
6922 Otherwise, the PLT entry would provide a definition for
6923 the symbol even if the symbol wasn't defined anywhere,
6924 and so the symbol would never be NULL. */
6925 if (!h->ref_regular_nonweak)
6926 sym->st_value = 0;
6927 }
6928 doneone = TRUE;
6929 }
e1a9cb8e 6930
4a3dc543 6931 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 6932 {
6933 bfd_vma plt;
6934 unsigned char *p;
e1a9cb8e 6935
a6aa5195
AM		 6936 plt = (ent->plt.offset
6937 + htab->plt->output_section->vma
6938 + htab->plt->output_offset);
6939 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
e1a9cb8e 6940
a6aa5195
AM		 6941 if (info->shared || info->pie)
6942 {
6943 bfd_vma got = 0;
6944
6945 if (ent->addend >= 32768)
6946 got = (ent->addend
6947 + ent->sec->output_section->vma
6948 + ent->sec->output_offset);
6949 else if (htab->elf.hgot != NULL)
6950 got = (htab->elf.hgot->root.u.def.value
6951 + htab->elf.hgot->root.u.def.section->output_section->vma
6952 + htab->elf.hgot->root.u.def.section->output_offset);
6953
6954 plt -= got;
6955
6956 if (plt + 0x8000 < 0x10000)
6957 {
6958 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
6959 p += 4;
6960 bfd_put_32 (output_bfd, MTCTR_11, p);
6961 p += 4;
6962 bfd_put_32 (output_bfd, BCTR, p);
6963 p += 4;
6964 bfd_put_32 (output_bfd, NOP, p);
6965 p += 4;
6966 }
6967 else
6968 {
6969 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
6970 p += 4;
6971 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
6972 p += 4;
6973 bfd_put_32 (output_bfd, MTCTR_11, p);
6974 p += 4;
6975 bfd_put_32 (output_bfd, BCTR, p);
6976 p += 4;
6977 }
6978 }
6979 else
6980 {
6981 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
6982 p += 4;
6983 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
6984 p += 4;
6985 bfd_put_32 (output_bfd, MTCTR_11, p);
6986 p += 4;
6987 bfd_put_32 (output_bfd, BCTR, p);
6988 p += 4;
28e99bb6
AM		 6989
6990 /* We only need one non-PIC glink stub. */
6991 break;
a6aa5195
AM		 6992 }
6993 }
6994 else
6995 break;
6996 }
e1a9cb8e 6997
25dbc73a
AM		 6998 if (h->needs_copy)
6999 {
7000 asection *s;
7001 Elf_Internal_Rela rela;
7002 bfd_byte *loc;
e1a9cb8e 7003
25dbc73a 7004 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 7005
25dbc73a
AM		 7006#ifdef DEBUG
7007 fprintf (stderr, ", copy");
7008#endif
e1a9cb8e 7009
25dbc73a 7010 BFD_ASSERT (h->dynindx != -1);
86bbe32f 7011
4dc4a9a5 7012 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 7013 s = htab->relsbss;
7014 else
7015 s = htab->relbss;
7016 BFD_ASSERT (s != NULL);
e1a9cb8e 7017
25dbc73a
AM		 7018 rela.r_offset = (h->root.u.def.value
7019 + h->root.u.def.section->output_section->vma
7020 + h->root.u.def.section->output_offset);
7021 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
7022 rela.r_addend = 0;
7023 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7024 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7025 }
e1a9cb8e 7026
25dbc73a
AM		 7027#ifdef DEBUG
7028 fprintf (stderr, "\n");
7029#endif
e1a9cb8e 7030
25dbc73a 7031 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB		 7032 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7033 || (!htab->is_vxworks
7034 && (h == htab->elf.hgot
7035 || strcmp (h->root.root.string,
7036 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 7037 sym->st_shndx = SHN_ABS;
e1a9cb8e 7038
25dbc73a
AM		 7039 return TRUE;
7040}
7041\f
7042static enum elf_reloc_type_class
7043ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 7044{
25dbc73a
AM		 7045 switch (ELF32_R_TYPE (rela->r_info))
7046 {
7047 case R_PPC_RELATIVE:
7048 return reloc_class_relative;
7049 case R_PPC_REL24:
7050 case R_PPC_ADDR24:
7051 case R_PPC_JMP_SLOT:
7052 return reloc_class_plt;
7053 case R_PPC_COPY:
7054 return reloc_class_copy;
7055 default:
7056 return reloc_class_normal;
7057 }
e1a9cb8e 7058}
25dbc73a
AM		 7059\f
7060/* Finish up the dynamic sections. */
e1a9cb8e 7061
25dbc73a
AM		 7062static bfd_boolean
7063ppc_elf_finish_dynamic_sections (bfd *output_bfd,
7064 struct bfd_link_info *info)
e1a9cb8e 7065{
25dbc73a 7066 asection *sdyn;
9d8504b1 7067 asection *splt;
25dbc73a 7068 struct ppc_elf_link_hash_table *htab;
1fe44d79 7069 bfd_vma got;
9d8504b1 7070 bfd * dynobj;
e1a9cb8e 7071
25dbc73a
AM		 7072#ifdef DEBUG
7073 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
7074#endif
6b0817e5 7075
25dbc73a 7076 htab = ppc_elf_hash_table (info);
9d8504b1
PB		 7077 dynobj = elf_hash_table (info)->dynobj;
7078 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
7079 if (htab->is_vxworks)
7080 splt = bfd_get_section_by_name (dynobj, ".plt");
7081 else
7082 splt = NULL;
e1a9cb8e 7083
1fe44d79
AM		 7084 got = 0;
7085 if (htab->elf.hgot != NULL)
7086 got = (htab->elf.hgot->root.u.def.value
7087 + htab->elf.hgot->root.u.def.section->output_section->vma
7088 + htab->elf.hgot->root.u.def.section->output_offset);
7089
25dbc73a 7090 if (htab->elf.dynamic_sections_created)
e1a9cb8e 7091 {
25dbc73a 7092 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 7093
25dbc73a 7094 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 7095
25dbc73a
AM		 7096 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7097 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7098 for (; dyncon < dynconend; dyncon++)
7099 {
7100 Elf_Internal_Dyn dyn;
7101 asection *s;
e1a9cb8e 7102
9d8504b1 7103 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 7104
25dbc73a
AM		 7105 switch (dyn.d_tag)
7106 {
7107 case DT_PLTGOT:
9d8504b1
PB		 7108 if (htab->is_vxworks)
7109 s = htab->sgotplt;
7110 else
7111 s = htab->plt;
25dbc73a
AM		 7112 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7113 break;
86bbe32f 7114
25dbc73a
AM		 7115 case DT_PLTRELSZ:
7116 dyn.d_un.d_val = htab->relplt->size;
7117 break;
e1a9cb8e 7118
25dbc73a
AM		 7119 case DT_JMPREL:
7120 s = htab->relplt;
7121 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
7122 break;
2f89ff8d 7123
1fe44d79
AM		 7124 case DT_PPC_GOT:
7125 dyn.d_un.d_ptr = got;
d7128ce4
AM		 7126 break;
7127
9d8504b1
PB		 7128 case DT_RELASZ:
7129 if (htab->is_vxworks)
7130 {
7131 if (htab->relplt)
7132 dyn.d_un.d_ptr -= htab->relplt->size;
7133 break;
7134 }
7135 continue;
7136
25dbc73a
AM		 7137 default:
7138 continue;
7139 }
4c45e5c9 7140
25dbc73a
AM		 7141 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7142 }
7143 }
4c45e5c9 7144
25dbc73a
AM		 7145 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
7146 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
3b36f7e6 7147 if (htab->got != NULL)
25dbc73a 7148 {
3b36f7e6
AM		 7149 unsigned char *p = htab->got->contents;
7150 bfd_vma val;
2f89ff8d 7151
636ce3f5 7152 p += htab->elf.hgot->root.u.def.value;
4a3dc543 7153 if (htab->plt_type == PLT_OLD)
d7128ce4 7154 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, p - 4);
3b36f7e6
AM		 7155
7156 val = 0;
7157 if (sdyn != NULL)
7158 val = sdyn->output_section->vma + sdyn->output_offset;
7159 bfd_put_32 (output_bfd, val, p);
25dbc73a
AM		 7160
7161 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
7162 }
7163
9d8504b1
PB		 7164 /* Fill in the first entry in the VxWorks procedure linkage table. */
7165 if (splt && splt->size > 0)
7166 {
7167 /* Use the right PLT. */
7168 static const bfd_vma *plt_entry = NULL;
7169 plt_entry = info->shared ?
7170 ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry;
7171
7172 if (!info->shared)
7173 {
7174 bfd_vma got_value =
636ce3f5
AM		 7175 (htab->elf.hgot->root.u.def.section->output_section->vma
7176 + htab->elf.hgot->root.u.def.section->output_offset
7177 + htab->elf.hgot->root.u.def.value);
9d8504b1
PB		 7178 bfd_vma got_hi = (got_value >> 16) + ((got_value & 0x8000) >> 15);
7179
7180 bfd_put_32 (output_bfd, plt_entry[0] | (got_hi & 0xffff),
7181 splt->contents + 0);
7182 bfd_put_32 (output_bfd, plt_entry[1] | (got_value & 0xffff),
7183 splt->contents + 4);
7184 }
7185 else
7186 {
7187 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
7188 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
7189 }
7190 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
7191 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
7192 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
7193 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
7194 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
7195 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
7196
7197 if (! info->shared)
7198 {
7199 Elf_Internal_Rela rela;
7200 bfd_byte *loc;
7201
7202 loc = htab->srelplt2->contents;
7203
7204 /* Output the @ha relocation for the first instruction. */
7205 rela.r_offset = (htab->plt->output_section->vma
7206 + htab->plt->output_offset
7207 + 2);
636ce3f5 7208 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7209 rela.r_addend = 0;
7210 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7211 loc += sizeof (Elf32_External_Rela);
7212
7213 /* Output the @l relocation for the second instruction. */
7214 rela.r_offset = (htab->plt->output_section->vma
7215 + htab->plt->output_offset
7216 + 6);
636ce3f5 7217 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7218 rela.r_addend = 0;
7219 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7220 loc += sizeof (Elf32_External_Rela);
7221
7222 /* Fix up the remaining relocations. They may have the wrong
7223 symbol index for _G_O_T_ or _P_L_T_ depending on the order
7224 in which symbols were output. */
7225 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7226 {
7227 Elf_Internal_Rela rel;
7228
7229 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7230 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 7231 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7232 loc += sizeof (Elf32_External_Rela);
7233
7234 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 7235 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 7236 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7237 loc += sizeof (Elf32_External_Rela);
7238
7239 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 7240 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB		 7241 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7242 loc += sizeof (Elf32_External_Rela);
7243 }
7244 }
7245 }
7246
d7128ce4
AM		 7247 if (htab->glink != NULL && htab->glink->contents != NULL)
7248 {
7249 unsigned char *p;
7250 unsigned char *endp;
a6aa5195 7251 bfd_vma res0;
d7128ce4 7252 unsigned int i;
a6aa5195
AM		 7253
7254 /*
7255 * PIC glink code is the following:
7256 *
7257 * # ith PLT code stub.
7258 * addis 11,30,(plt+(i-1)*4-got)@ha
7259 * lwz 11,(plt+(i-1)*4-got)@l(11)
7260 * mtctr 11
7261 * bctr
7262 *
7263 * # A table of branches, one for each plt entry.
7264 * # The idea is that the plt call stub loads ctr (and r11) with these
7265 * # addresses, so (r11 - res_0) gives the plt index * 4.
7266 * res_0: b PLTresolve
7267 * res_1: b PLTresolve
7268 * .
7269 * # Some number of entries towards the end can be nops
7270 * res_n_m3: nop
7271 * res_n_m2: nop
7272 * res_n_m1:
7273 *
7274 * PLTresolve:
7275 * addis 11,11,(1f-res_0)@ha
7276 * mflr 0
7277 * bcl 20,31,1f
7278 * 1: addi 11,11,(1b-res_0)@l
7279 * mflr 12
7280 * mtlr 0
7281 * sub 11,11,12 # r11 = index * 4
7282 * addis 12,12,(got+4-1b)@ha
7283 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
7284 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
7285 * mtctr 0
7286 * add 0,11,11
7287 * add 11,0,11 # r11 = index * 12 = reloc offset.
7288 * bctr
7289 */
7290 static const unsigned int pic_plt_resolve[] =
7291 {
7292 ADDIS_11_11,
7293 MFLR_0,
7294 BCL_20_31,
7295 ADDI_11_11,
7296 MFLR_12,
7297 MTLR_0,
7298 SUB_11_11_12,
7299 ADDIS_12_12,
7300 LWZ_0_12,
7301 LWZ_12_12,
7302 MTCTR_0,
7303 ADD_0_11_11,
7304 ADD_11_0_11,
7305 BCTR,
7306 NOP,
7307 NOP
7308 };
7309
d7128ce4
AM		 7310 static const unsigned int plt_resolve[] =
7311 {
a6aa5195
AM		 7312 LIS_12,
7313 ADDIS_11_11,
7314 LWZ_0_12,
7315 ADDI_11_11,
d7128ce4 7316 MTCTR_0,
7e8aeb9a 7317 ADD_0_11_11,
a6aa5195 7318 LWZ_12_12,
7e8aeb9a 7319 ADD_11_0_11,
d7128ce4
AM		 7320 BCTR,
7321 NOP,
7322 NOP,
a6aa5195
AM		 7323 NOP,
7324 NOP,
7325 NOP,
7326 NOP,
d7128ce4
AM		 7327 NOP
7328 };
7329
a6aa5195
AM		 7330 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
7331 abort ();
7332 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM		 7333 abort ();
7334
a6aa5195 7335 /* Build the branch table, one for each plt entry (less one),
86b9da88 7336 and perhaps some padding. */
a6aa5195
AM		 7337 p = htab->glink->contents;
7338 p += htab->glink_pltresolve;
86b9da88
AM		 7339 endp = htab->glink->contents;
7340 endp += htab->glink->size - GLINK_PLTRESOLVE;
7341 while (p < endp - 8 * 4)
7342 {
7343 bfd_put_32 (output_bfd, B + endp - p, p);
7344 p += 4;
7345 }
7346 while (p < endp)
7347 {
7348 bfd_put_32 (output_bfd, NOP, p);
7349 p += 4;
7350 }
7351
7e8aeb9a 7352 res0 = (htab->glink_pltresolve
86b9da88
AM		 7353 + htab->glink->output_section->vma
7354 + htab->glink->output_offset);
7355
7356 /* Last comes the PLTresolve stub. */
7e8aeb9a
AM		 7357 if (info->shared || info->pie)
7358 {
a6aa5195 7359 bfd_vma bcl;
d7128ce4 7360
a6aa5195 7361 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 7362 {
a6aa5195 7363 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM		 7364 p += 4;
7365 }
a6aa5195
AM		 7366 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
7367
7368 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
7369 + htab->glink->output_section->vma
7370 + htab->glink->output_offset);
7371
7372 bfd_put_32 (output_bfd,
7373 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
7374 bfd_put_32 (output_bfd,
7375 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
7376 bfd_put_32 (output_bfd,
7377 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
7378 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
7379 {
7380 bfd_put_32 (output_bfd,
7381 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7382 bfd_put_32 (output_bfd,
7383 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
7384 }
7385 else
7386 {
7387 bfd_put_32 (output_bfd,
7388 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
7389 bfd_put_32 (output_bfd,
7390 LWZ_12_12 + 4, p + 9*4);
7391 }
7e8aeb9a
AM		 7392 }
7393 else
d7128ce4 7394 {
a6aa5195 7395 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM		 7396 {
7397 bfd_put_32 (output_bfd, plt_resolve[i], p);
7398 p += 4;
7399 }
a6aa5195
AM		 7400 p -= 4 * ARRAY_SIZE (plt_resolve);
7401
7402 bfd_put_32 (output_bfd,
7403 LIS_12 + PPC_HA (got + 4), p + 0*4);
7404 bfd_put_32 (output_bfd,
7405 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
7406 bfd_put_32 (output_bfd,
7407 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
7408 if (PPC_HA (got + 4) == PPC_HA (got + 8))
7409 {
7410 bfd_put_32 (output_bfd,
7411 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
7412 bfd_put_32 (output_bfd,
7413 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
7414 }
7415 else
7416 {
7417 bfd_put_32 (output_bfd,
7418 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
7419 bfd_put_32 (output_bfd,
7420 LWZ_12_12 + 4, p + 6*4);
7421 }
d7128ce4 7422 }
d7128ce4
AM		 7423 }
7424
25dbc73a
AM		 7425 return TRUE;
7426}
e1a9cb8e 7427\f
252b5132
RH		 7428#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
7429#define TARGET_LITTLE_NAME "elf32-powerpcle"
7430#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
7431#define TARGET_BIG_NAME "elf32-powerpc"
7432#define ELF_ARCH bfd_arch_powerpc
7433#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC		 7434#ifdef __QNXTARGET__
7435#define ELF_MAXPAGESIZE 0x1000
7436#else
252b5132 7437#define ELF_MAXPAGESIZE 0x10000
d0facd1b 7438#endif
b1342370 7439#define ELF_MINPAGESIZE 0x1000
24718e3b 7440#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH		 7441#define elf_info_to_howto ppc_elf_info_to_howto
7442
7443#ifdef EM_CYGNUS_POWERPC
7444#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
7445#endif
7446
7447#ifdef EM_PPC_OLD
7448#define ELF_MACHINE_ALT2 EM_PPC_OLD
7449#endif
7450
7451#define elf_backend_plt_not_loaded 1
252b5132 7452#define elf_backend_can_gc_sections 1
51b64d56 7453#define elf_backend_can_refcount 1
b491616a 7454#define elf_backend_rela_normal 1
252b5132 7455
43c40ab2 7456#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 7457#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 7458#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132
RH		 7459#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
7460#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 7461#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
252b5132 7462
feee612b 7463#define elf_backend_object_p ppc_elf_object_p
252b5132
RH		 7464#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
7465#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
7466#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
7467#define elf_backend_relocate_section ppc_elf_relocate_section
7468#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
7469#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 7470#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH		 7471#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
7472#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
7473#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
7474#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
7475#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
7476#define elf_backend_fake_sections ppc_elf_fake_sections
7477#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ		 7478#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
7479#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
29c2fb7c 7480#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM		 7481#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
7482#define elf_backend_final_write_processing ppc_elf_final_write_processing
7483#define elf_backend_write_section ppc_elf_write_section
551b43fd 7484#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 7485#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 7486#define elf_backend_action_discarded ppc_elf_action_discarded
252b5132
RH		 7487
7488#include "elf32-target.h"
9d8504b1
PB		 7489
7490/* VxWorks Target */
7491
7492#undef TARGET_LITTLE_SYM
7493#undef TARGET_LITTLE_NAME
7494
7495#undef TARGET_BIG_SYM
7496#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
7497#undef TARGET_BIG_NAME
7498#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
7499
d5e3d971
PB		 7500/* VxWorks uses the elf default section flags for .plt. */
7501static const struct bfd_elf_special_section *
7502ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 7503{
d5e3d971
PB		 7504 if (sec->name == NULL)
7505 return NULL;
7506
7507 if (strcmp (sec->name, ".plt") == 0)
7508 return _bfd_elf_get_sec_type_attr (abfd, sec);
7509
7510 return ppc_elf_get_sec_type_attr (abfd, sec);
7511}
9d8504b1
PB		 7512
7513/* Like ppc_elf_link_hash_table_create, but overrides
7514 appropriately for VxWorks. */
7515static struct bfd_link_hash_table *
7516ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
7517{
7518 struct bfd_link_hash_table *ret;
7519
7520 ret = ppc_elf_link_hash_table_create (abfd);
7521 if (ret)
7522 {
7523 struct ppc_elf_link_hash_table *htab
7524 = (struct ppc_elf_link_hash_table *)ret;
7525 htab->is_vxworks = 1;
4a3dc543 7526 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB		 7527 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
7528 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
7529 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
7530 }
7531 return ret;
7532}
7533
7534/* Tweak magic VxWorks symbols as they are loaded. */
7535static bfd_boolean
7536ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
7537 struct bfd_link_info *info,
7538 Elf_Internal_Sym *sym,
7539 const char **namep ATTRIBUTE_UNUSED,
7540 flagword *flagsp ATTRIBUTE_UNUSED,
7541 asection **secp,
7542 bfd_vma *valp)
7543{
7544 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
7545 valp))
7546 return FALSE;
7547
7548 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
7549}
7550
9d8504b1
PB		 7551static void
7552ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
7553{
7554 ppc_elf_final_write_processing(abfd, linker);
7555 elf_vxworks_final_write_processing(abfd, linker);
7556}
7557
7558/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
7559 define it. */
7560#undef elf_backend_want_plt_sym
7561#define elf_backend_want_plt_sym 1
7562#undef elf_backend_want_got_plt
7563#define elf_backend_want_got_plt 1
7564#undef elf_backend_got_symbol_offset
7565#define elf_backend_got_symbol_offset 0
7566#undef elf_backend_plt_not_loaded
7567#define elf_backend_plt_not_loaded 0
7568#undef elf_backend_plt_readonly
7569#define elf_backend_plt_readonly 1
7570#undef elf_backend_got_header_size
7571#define elf_backend_got_header_size 12
7572
7573#undef bfd_elf32_bfd_link_hash_table_create
7574#define bfd_elf32_bfd_link_hash_table_create \
7575 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB		 7576#undef elf_backend_add_symbol_hook
7577#define elf_backend_add_symbol_hook \
7578 ppc_elf_vxworks_add_symbol_hook
7579#undef elf_backend_link_output_symbol_hook
7580#define elf_backend_link_output_symbol_hook \
9c72ff84 7581 elf_vxworks_link_output_symbol_hook
9d8504b1
PB		 7582#undef elf_backend_final_write_processing
7583#define elf_backend_final_write_processing \
7584 ppc_elf_vxworks_final_write_processing
d5e3d971
PB		 7585#undef elf_backend_get_sec_type_attr
7586#define elf_backend_get_sec_type_attr \
7587 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB		 7588#undef elf_backend_emit_relocs
7589#define elf_backend_emit_relocs \
7590 elf_vxworks_emit_relocs
7591
7592#undef elf32_bed
7593#define elf32_bed ppc_elf_vxworks_bed
7594
7595#include "elf32-target.h"
GDB Binutils - Deliverables
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