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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,
25f53a85
AM		 3 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
252b5132
RH		 5 Written by Ian Lance Taylor, Cygnus Support.
6
ae9a127f 7 This file is part of BFD, the Binary File Descriptor library.
252b5132 8
ae9a127f
NC		 9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
ae9a127f 12 (at your option) any later version.
252b5132 13
ae9a127f
NC		 14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
252b5132 18
ae9a127f 19 You should have received a copy of the GNU General Public License
fc0bffd6 20 along with this program; if not, write to the
3e110533 21 Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
53e09e0a 22 Boston, MA 02110-1301, USA. */
252b5132 23
cd123cb7 24
252b5132
RH		 25/* This file is based on a preliminary PowerPC ELF ABI. The
26 information may not match the final PowerPC ELF ABI. It includes
27 suggestions from the in-progress Embedded PowerPC ABI, and that
28 information may also not match. */
29
3db64b00 30#include "sysdep.h"
183e98be 31#include <stdarg.h>
252b5132 32#include "bfd.h"
252b5132
RH		 33#include "bfdlink.h"
34#include "libbfd.h"
35#include "elf-bfd.h"
36#include "elf/ppc.h"
7619e7c7 37#include "elf32-ppc.h"
9d8504b1 38#include "elf-vxworks.h"
252b5132 39
f0fe0e16 40/* RELA relocations are used here. */
252b5132 41
252b5132 42static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 44static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 46
70bccea4
AM		 47/* Branch prediction bit for branch taken relocs. */
48#define BRANCH_PREDICT_BIT 0x200000
49/* Mask to set RA in memory instructions. */
50#define RA_REGISTER_MASK 0x001f0000
51/* Value to shift register by to insert RA. */
52#define RA_REGISTER_SHIFT 16
252b5132
RH		 53
54/* The name of the dynamic interpreter. This is put in the .interp
55 section. */
252b5132
RH		 56#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
57
d7128ce4 58/* For old-style PLT. */
252b5132
RH		 59/* The number of single-slot PLT entries (the rest use two slots). */
60#define PLT_NUM_SINGLE_ENTRIES 8192
61
d7128ce4 62/* For new-style .glink and .plt. */
a6aa5195 63#define GLINK_PLTRESOLVE 16*4
d7128ce4 64#define GLINK_ENTRY_SIZE 4*4
a7f2871e 65#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 66
9d8504b1
PB		 67/* VxWorks uses its own plt layout, filled in by the static linker. */
68
69/* The standard VxWorks PLT entry. */
70#define VXWORKS_PLT_ENTRY_SIZE 32
71static const bfd_vma ppc_elf_vxworks_plt_entry
72 [VXWORKS_PLT_ENTRY_SIZE / 4] =
73 {
74 0x3d800000, /* lis r12,0 */
75 0x818c0000, /* lwz r12,0(r12) */
76 0x7d8903a6, /* mtctr r12 */
77 0x4e800420, /* bctr */
78 0x39600000, /* li r11,0 */
79 0x48000000, /* b 14 <.PLT0resolve+0x4> */
80 0x60000000, /* nop */
81 0x60000000, /* nop */
82 };
83static const bfd_vma ppc_elf_vxworks_pic_plt_entry
84 [VXWORKS_PLT_ENTRY_SIZE / 4] =
85 {
86 0x3d9e0000, /* addis r12,r30,0 */
87 0x818c0000, /* lwz r12,0(r12) */
88 0x7d8903a6, /* mtctr r12 */
89 0x4e800420, /* bctr */
90 0x39600000, /* li r11,0 */
91 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
92 0x60000000, /* nop */
93 0x60000000, /* nop */
94 };
95
96/* The initial VxWorks PLT entry. */
97#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
98static const bfd_vma ppc_elf_vxworks_plt0_entry
99 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
100 {
101 0x3d800000, /* lis r12,0 */
102 0x398c0000, /* addi r12,r12,0 */
103 0x800c0008, /* lwz r0,8(r12) */
104 0x7c0903a6, /* mtctr r0 */
105 0x818c0004, /* lwz r12,4(r12) */
106 0x4e800420, /* bctr */
107 0x60000000, /* nop */
108 0x60000000, /* nop */
109 };
110static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
111 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
112 {
113 0x819e0008, /* lwz r12,8(r30) */
114 0x7d8903a6, /* mtctr r12 */
115 0x819e0004, /* lwz r12,4(r30) */
116 0x4e800420, /* bctr */
117 0x60000000, /* nop */
118 0x60000000, /* nop */
119 0x60000000, /* nop */
120 0x60000000, /* nop */
121 };
122
123/* For executables, we have some additional relocations in
124 .rela.plt.unloaded, for the kernel loader. */
125
126/* The number of non-JMP_SLOT relocations per PLT0 slot. */
127#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
128/* The number of relocations in the PLTResolve slot. */
129#define VXWORKS_PLTRESOLVE_RELOCS 2
130/* The number of relocations in the PLTResolve slot when when creating
131 a shared library. */
132#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
133
d7128ce4 134/* Some instructions. */
d7128ce4 135#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM		 136#define ADDIS_11_30 0x3d7e0000
137#define ADDIS_12_12 0x3d8c0000
d7128ce4 138#define ADDI_11_11 0x396b0000
d7128ce4 139#define ADD_0_11_11 0x7c0b5a14
a7f2871e 140#define ADD_3_12_2 0x7c6c1214
d7128ce4 141#define ADD_11_0_11 0x7d605a14
a6aa5195
AM		 142#define B 0x48000000
143#define BCL_20_31 0x429f0005
d7128ce4 144#define BCTR 0x4e800420
a7f2871e
AM		 145#define BEQLR 0x4d820020
146#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM		 147#define LIS_11 0x3d600000
148#define LIS_12 0x3d800000
a6aa5195
AM		 149#define LWZU_0_12 0x840c0000
150#define LWZ_0_12 0x800c0000
a7f2871e 151#define LWZ_11_3 0x81630000
a6aa5195
AM		 152#define LWZ_11_11 0x816b0000
153#define LWZ_11_30 0x817e0000
a7f2871e 154#define LWZ_12_3 0x81830000
a6aa5195 155#define LWZ_12_12 0x818c0000
a7f2871e
AM		 156#define MR_0_3 0x7c601b78
157#define MR_3_0 0x7c030378
a6aa5195
AM		 158#define MFLR_0 0x7c0802a6
159#define MFLR_12 0x7d8802a6
160#define MTCTR_0 0x7c0903a6
161#define MTCTR_11 0x7d6903a6
162#define MTLR_0 0x7c0803a6
163#define NOP 0x60000000
164#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM		 165
166/* Offset of tp and dtp pointers from start of TLS block. */
167#define TP_OFFSET 0x7000
168#define DTP_OFFSET 0x8000
e87d4038
AM		 169
170/* The value of a defined global symbol. */
171#define SYM_VAL(SYM) \
172 ((SYM)->root.u.def.section->output_section->vma \
173 + (SYM)->root.u.def.section->output_offset \
174 + (SYM)->root.u.def.value)
7fce784e 175\f
e47cd125 176static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 177
8da6118f 178static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH		 179 /* This reloc does nothing. */
180 HOWTO (R_PPC_NONE, /* type */
181 0, /* rightshift */
182 2, /* size (0 = byte, 1 = short, 2 = long) */
183 32, /* bitsize */
b34976b6 184 FALSE, /* pc_relative */
252b5132
RH		 185 0, /* bitpos */
186 complain_overflow_bitfield, /* complain_on_overflow */
187 bfd_elf_generic_reloc, /* special_function */
188 "R_PPC_NONE", /* name */
b34976b6 189 FALSE, /* partial_inplace */
252b5132
RH		 190 0, /* src_mask */
191 0, /* dst_mask */
b34976b6 192 FALSE), /* pcrel_offset */
252b5132
RH		 193
194 /* A standard 32 bit relocation. */
195 HOWTO (R_PPC_ADDR32, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 32, /* bitsize */
b34976b6 199 FALSE, /* pc_relative */
252b5132
RH		 200 0, /* bitpos */
201 complain_overflow_bitfield, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_PPC_ADDR32", /* name */
b34976b6 204 FALSE, /* partial_inplace */
252b5132
RH		 205 0, /* src_mask */
206 0xffffffff, /* dst_mask */
b34976b6 207 FALSE), /* pcrel_offset */
252b5132
RH		 208
209 /* An absolute 26 bit branch; the lower two bits must be zero.
210 FIXME: we don't check that, we just clear them. */
211 HOWTO (R_PPC_ADDR24, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 26, /* bitsize */
b34976b6 215 FALSE, /* pc_relative */
252b5132
RH		 216 0, /* bitpos */
217 complain_overflow_bitfield, /* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_PPC_ADDR24", /* name */
b34976b6 220 FALSE, /* partial_inplace */
252b5132
RH		 221 0, /* src_mask */
222 0x3fffffc, /* dst_mask */
b34976b6 223 FALSE), /* pcrel_offset */
252b5132
RH		 224
225 /* A standard 16 bit relocation. */
226 HOWTO (R_PPC_ADDR16, /* type */
227 0, /* rightshift */
228 1, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
b34976b6 230 FALSE, /* pc_relative */
252b5132
RH		 231 0, /* bitpos */
232 complain_overflow_bitfield, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_PPC_ADDR16", /* name */
b34976b6 235 FALSE, /* partial_inplace */
252b5132
RH		 236 0, /* src_mask */
237 0xffff, /* dst_mask */
b34976b6 238 FALSE), /* pcrel_offset */
252b5132
RH		 239
240 /* A 16 bit relocation without overflow. */
241 HOWTO (R_PPC_ADDR16_LO, /* type */
242 0, /* rightshift */
243 1, /* size (0 = byte, 1 = short, 2 = long) */
244 16, /* bitsize */
b34976b6 245 FALSE, /* pc_relative */
252b5132
RH		 246 0, /* bitpos */
247 complain_overflow_dont,/* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_PPC_ADDR16_LO", /* name */
b34976b6 250 FALSE, /* partial_inplace */
252b5132
RH		 251 0, /* src_mask */
252 0xffff, /* dst_mask */
b34976b6 253 FALSE), /* pcrel_offset */
252b5132
RH		 254
255 /* The high order 16 bits of an address. */
256 HOWTO (R_PPC_ADDR16_HI, /* type */
257 16, /* rightshift */
258 1, /* size (0 = byte, 1 = short, 2 = long) */
259 16, /* bitsize */
b34976b6 260 FALSE, /* pc_relative */
252b5132
RH		 261 0, /* bitpos */
262 complain_overflow_dont, /* complain_on_overflow */
263 bfd_elf_generic_reloc, /* special_function */
264 "R_PPC_ADDR16_HI", /* name */
b34976b6 265 FALSE, /* partial_inplace */
252b5132
RH		 266 0, /* src_mask */
267 0xffff, /* dst_mask */
b34976b6 268 FALSE), /* pcrel_offset */
252b5132
RH		 269
270 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 271 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH		 272 HOWTO (R_PPC_ADDR16_HA, /* type */
273 16, /* rightshift */
274 1, /* size (0 = byte, 1 = short, 2 = long) */
275 16, /* bitsize */
b34976b6 276 FALSE, /* pc_relative */
252b5132
RH		 277 0, /* bitpos */
278 complain_overflow_dont, /* complain_on_overflow */
279 ppc_elf_addr16_ha_reloc, /* special_function */
280 "R_PPC_ADDR16_HA", /* name */
b34976b6 281 FALSE, /* partial_inplace */
252b5132
RH		 282 0, /* src_mask */
283 0xffff, /* dst_mask */
b34976b6 284 FALSE), /* pcrel_offset */
252b5132
RH		 285
286 /* An absolute 16 bit branch; the lower two bits must be zero.
287 FIXME: we don't check that, we just clear them. */
288 HOWTO (R_PPC_ADDR14, /* 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", /* 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 expected to be taken. The lower two
8da6118f 304 bits must be zero. */
252b5132
RH		 305 HOWTO (R_PPC_ADDR14_BRTAKEN, /* 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_BRTAKEN",/* name */
b34976b6 314 FALSE, /* partial_inplace */
252b5132
RH		 315 0, /* src_mask */
316 0xfffc, /* dst_mask */
b34976b6 317 FALSE), /* pcrel_offset */
252b5132
RH		 318
319 /* An absolute 16 bit branch, for which bit 10 should be set to
320 indicate that the branch is not expected to be taken. The lower
321 two bits must be zero. */
322 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
323 0, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 16, /* bitsize */
b34976b6 326 FALSE, /* pc_relative */
252b5132
RH		 327 0, /* bitpos */
328 complain_overflow_bitfield, /* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 331 FALSE, /* partial_inplace */
252b5132
RH		 332 0, /* src_mask */
333 0xfffc, /* dst_mask */
b34976b6 334 FALSE), /* pcrel_offset */
252b5132 335
8da6118f 336 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH		 337 HOWTO (R_PPC_REL24, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 26, /* bitsize */
b34976b6 341 TRUE, /* pc_relative */
252b5132
RH		 342 0, /* bitpos */
343 complain_overflow_signed, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_PPC_REL24", /* name */
b34976b6 346 FALSE, /* partial_inplace */
252b5132
RH		 347 0, /* src_mask */
348 0x3fffffc, /* dst_mask */
b34976b6 349 TRUE), /* pcrel_offset */
252b5132 350
8da6118f 351 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH		 352 HOWTO (R_PPC_REL14, /* 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", /* 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 expected to be taken. The lower two bits must be
368 zero. */
369 HOWTO (R_PPC_REL14_BRTAKEN, /* 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_BRTAKEN", /* name */
b34976b6 378 FALSE, /* partial_inplace */
252b5132
RH		 379 0, /* src_mask */
380 0xfffc, /* dst_mask */
b34976b6 381 TRUE), /* pcrel_offset */
252b5132 382
8da6118f 383 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH		 384 the branch is not expected to be taken. The lower two bits must
385 be zero. */
386 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
b34976b6 390 TRUE, /* pc_relative */
252b5132
RH		 391 0, /* bitpos */
392 complain_overflow_signed, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 395 FALSE, /* partial_inplace */
252b5132
RH		 396 0, /* src_mask */
397 0xfffc, /* dst_mask */
b34976b6 398 TRUE), /* pcrel_offset */
252b5132
RH		 399
400 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
401 symbol. */
402 HOWTO (R_PPC_GOT16, /* type */
403 0, /* rightshift */
404 1, /* size (0 = byte, 1 = short, 2 = long) */
405 16, /* bitsize */
b34976b6 406 FALSE, /* pc_relative */
252b5132
RH		 407 0, /* bitpos */
408 complain_overflow_signed, /* complain_on_overflow */
409 bfd_elf_generic_reloc, /* special_function */
410 "R_PPC_GOT16", /* name */
b34976b6 411 FALSE, /* partial_inplace */
252b5132
RH		 412 0, /* src_mask */
413 0xffff, /* dst_mask */
b34976b6 414 FALSE), /* pcrel_offset */
252b5132
RH		 415
416 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
417 the symbol. */
418 HOWTO (R_PPC_GOT16_LO, /* type */
419 0, /* rightshift */
420 1, /* size (0 = byte, 1 = short, 2 = long) */
421 16, /* bitsize */
b34976b6 422 FALSE, /* pc_relative */
252b5132
RH		 423 0, /* bitpos */
424 complain_overflow_dont, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_PPC_GOT16_LO", /* name */
b34976b6 427 FALSE, /* partial_inplace */
252b5132
RH		 428 0, /* src_mask */
429 0xffff, /* dst_mask */
b34976b6 430 FALSE), /* pcrel_offset */
252b5132
RH		 431
432 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
433 the symbol. */
434 HOWTO (R_PPC_GOT16_HI, /* type */
435 16, /* rightshift */
436 1, /* size (0 = byte, 1 = short, 2 = long) */
437 16, /* bitsize */
b34976b6 438 FALSE, /* pc_relative */
252b5132
RH		 439 0, /* bitpos */
440 complain_overflow_bitfield, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_PPC_GOT16_HI", /* name */
b34976b6 443 FALSE, /* partial_inplace */
252b5132
RH		 444 0, /* src_mask */
445 0xffff, /* dst_mask */
b34976b6 446 FALSE), /* pcrel_offset */
252b5132
RH		 447
448 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
449 the symbol. */
450 HOWTO (R_PPC_GOT16_HA, /* type */
451 16, /* rightshift */
452 1, /* size (0 = byte, 1 = short, 2 = long) */
453 16, /* bitsize */
b34976b6 454 FALSE, /* pc_relative */
252b5132
RH		 455 0, /* bitpos */
456 complain_overflow_bitfield, /* complain_on_overflow */
457 ppc_elf_addr16_ha_reloc, /* special_function */
458 "R_PPC_GOT16_HA", /* name */
b34976b6 459 FALSE, /* partial_inplace */
252b5132
RH		 460 0, /* src_mask */
461 0xffff, /* dst_mask */
b34976b6 462 FALSE), /* pcrel_offset */
252b5132
RH		 463
464 /* Like R_PPC_REL24, but referring to the procedure linkage table
465 entry for the symbol. */
466 HOWTO (R_PPC_PLTREL24, /* type */
467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 26, /* bitsize */
b34976b6 470 TRUE, /* pc_relative */
252b5132
RH		 471 0, /* bitpos */
472 complain_overflow_signed, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_PPC_PLTREL24", /* name */
b34976b6 475 FALSE, /* partial_inplace */
252b5132
RH		 476 0, /* src_mask */
477 0x3fffffc, /* dst_mask */
b34976b6 478 TRUE), /* pcrel_offset */
252b5132
RH		 479
480 /* This is used only by the dynamic linker. The symbol should exist
481 both in the object being run and in some shared library. The
482 dynamic linker copies the data addressed by the symbol from the
483 shared library into the object, because the object being
484 run has to have the data at some particular address. */
485 HOWTO (R_PPC_COPY, /* type */
486 0, /* rightshift */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
488 32, /* bitsize */
b34976b6 489 FALSE, /* pc_relative */
252b5132
RH		 490 0, /* bitpos */
491 complain_overflow_bitfield, /* complain_on_overflow */
492 bfd_elf_generic_reloc, /* special_function */
493 "R_PPC_COPY", /* name */
b34976b6 494 FALSE, /* partial_inplace */
252b5132
RH		 495 0, /* src_mask */
496 0, /* dst_mask */
b34976b6 497 FALSE), /* pcrel_offset */
252b5132
RH		 498
499 /* Like R_PPC_ADDR32, but used when setting global offset table
500 entries. */
501 HOWTO (R_PPC_GLOB_DAT, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 32, /* bitsize */
b34976b6 505 FALSE, /* pc_relative */
252b5132
RH		 506 0, /* bitpos */
507 complain_overflow_bitfield, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_PPC_GLOB_DAT", /* name */
b34976b6 510 FALSE, /* partial_inplace */
252b5132
RH		 511 0, /* src_mask */
512 0xffffffff, /* dst_mask */
b34976b6 513 FALSE), /* pcrel_offset */
252b5132
RH		 514
515 /* Marks a procedure linkage table entry for a symbol. */
516 HOWTO (R_PPC_JMP_SLOT, /* 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_JMP_SLOT", /* name */
b34976b6 525 FALSE, /* partial_inplace */
252b5132
RH		 526 0, /* src_mask */
527 0, /* dst_mask */
b34976b6 528 FALSE), /* pcrel_offset */
252b5132
RH		 529
530 /* Used only by the dynamic linker. When the object is run, this
531 longword is set to the load address of the object, plus the
532 addend. */
533 HOWTO (R_PPC_RELATIVE, /* type */
534 0, /* rightshift */
535 2, /* size (0 = byte, 1 = short, 2 = long) */
536 32, /* bitsize */
b34976b6 537 FALSE, /* pc_relative */
252b5132
RH		 538 0, /* bitpos */
539 complain_overflow_bitfield, /* complain_on_overflow */
540 bfd_elf_generic_reloc, /* special_function */
541 "R_PPC_RELATIVE", /* name */
b34976b6 542 FALSE, /* partial_inplace */
252b5132
RH		 543 0, /* src_mask */
544 0xffffffff, /* dst_mask */
b34976b6 545 FALSE), /* pcrel_offset */
252b5132
RH		 546
547 /* Like R_PPC_REL24, but uses the value of the symbol within the
548 object rather than the final value. Normally used for
549 _GLOBAL_OFFSET_TABLE_. */
550 HOWTO (R_PPC_LOCAL24PC, /* type */
551 0, /* rightshift */
552 2, /* size (0 = byte, 1 = short, 2 = long) */
553 26, /* bitsize */
b34976b6 554 TRUE, /* pc_relative */
252b5132
RH		 555 0, /* bitpos */
556 complain_overflow_signed, /* complain_on_overflow */
557 bfd_elf_generic_reloc, /* special_function */
558 "R_PPC_LOCAL24PC", /* name */
b34976b6 559 FALSE, /* partial_inplace */
252b5132
RH		 560 0, /* src_mask */
561 0x3fffffc, /* dst_mask */
b34976b6 562 TRUE), /* pcrel_offset */
252b5132
RH		 563
564 /* Like R_PPC_ADDR32, but may be unaligned. */
565 HOWTO (R_PPC_UADDR32, /* type */
566 0, /* rightshift */
567 2, /* size (0 = byte, 1 = short, 2 = long) */
568 32, /* bitsize */
b34976b6 569 FALSE, /* pc_relative */
252b5132
RH		 570 0, /* bitpos */
571 complain_overflow_bitfield, /* complain_on_overflow */
572 bfd_elf_generic_reloc, /* special_function */
573 "R_PPC_UADDR32", /* name */
b34976b6 574 FALSE, /* partial_inplace */
252b5132
RH		 575 0, /* src_mask */
576 0xffffffff, /* dst_mask */
b34976b6 577 FALSE), /* pcrel_offset */
252b5132
RH		 578
579 /* Like R_PPC_ADDR16, but may be unaligned. */
580 HOWTO (R_PPC_UADDR16, /* type */
581 0, /* rightshift */
582 1, /* size (0 = byte, 1 = short, 2 = long) */
583 16, /* bitsize */
b34976b6 584 FALSE, /* pc_relative */
252b5132
RH		 585 0, /* bitpos */
586 complain_overflow_bitfield, /* complain_on_overflow */
587 bfd_elf_generic_reloc, /* special_function */
588 "R_PPC_UADDR16", /* name */
b34976b6 589 FALSE, /* partial_inplace */
252b5132
RH		 590 0, /* src_mask */
591 0xffff, /* dst_mask */
b34976b6 592 FALSE), /* pcrel_offset */
252b5132
RH		 593
594 /* 32-bit PC relative */
595 HOWTO (R_PPC_REL32, /* type */
596 0, /* rightshift */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
598 32, /* bitsize */
b34976b6 599 TRUE, /* pc_relative */
252b5132
RH		 600 0, /* bitpos */
601 complain_overflow_bitfield, /* complain_on_overflow */
602 bfd_elf_generic_reloc, /* special_function */
603 "R_PPC_REL32", /* name */
b34976b6 604 FALSE, /* partial_inplace */
252b5132
RH		 605 0, /* src_mask */
606 0xffffffff, /* dst_mask */
b34976b6 607 TRUE), /* pcrel_offset */
252b5132
RH		 608
609 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 610 FIXME: not supported. */
252b5132
RH		 611 HOWTO (R_PPC_PLT32, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 32, /* bitsize */
b34976b6 615 FALSE, /* pc_relative */
252b5132
RH		 616 0, /* bitpos */
617 complain_overflow_bitfield, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_PPC_PLT32", /* name */
b34976b6 620 FALSE, /* partial_inplace */
252b5132
RH		 621 0, /* src_mask */
622 0, /* dst_mask */
b34976b6 623 FALSE), /* pcrel_offset */
252b5132
RH		 624
625 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 626 FIXME: not supported. */
252b5132
RH		 627 HOWTO (R_PPC_PLTREL32, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 32, /* bitsize */
b34976b6 631 TRUE, /* pc_relative */
252b5132
RH		 632 0, /* bitpos */
633 complain_overflow_bitfield, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_PPC_PLTREL32", /* name */
b34976b6 636 FALSE, /* partial_inplace */
252b5132
RH		 637 0, /* src_mask */
638 0, /* dst_mask */
b34976b6 639 TRUE), /* pcrel_offset */
252b5132
RH		 640
641 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
642 the symbol. */
643 HOWTO (R_PPC_PLT16_LO, /* type */
644 0, /* rightshift */
645 1, /* size (0 = byte, 1 = short, 2 = long) */
646 16, /* bitsize */
b34976b6 647 FALSE, /* pc_relative */
252b5132
RH		 648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 bfd_elf_generic_reloc, /* special_function */
651 "R_PPC_PLT16_LO", /* name */
b34976b6 652 FALSE, /* partial_inplace */
252b5132
RH		 653 0, /* src_mask */
654 0xffff, /* dst_mask */
b34976b6 655 FALSE), /* pcrel_offset */
252b5132
RH		 656
657 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
658 the symbol. */
659 HOWTO (R_PPC_PLT16_HI, /* type */
660 16, /* rightshift */
661 1, /* size (0 = byte, 1 = short, 2 = long) */
662 16, /* bitsize */
b34976b6 663 FALSE, /* pc_relative */
252b5132
RH		 664 0, /* bitpos */
665 complain_overflow_bitfield, /* complain_on_overflow */
666 bfd_elf_generic_reloc, /* special_function */
667 "R_PPC_PLT16_HI", /* name */
b34976b6 668 FALSE, /* partial_inplace */
252b5132
RH		 669 0, /* src_mask */
670 0xffff, /* dst_mask */
b34976b6 671 FALSE), /* pcrel_offset */
252b5132
RH		 672
673 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
674 the symbol. */
675 HOWTO (R_PPC_PLT16_HA, /* type */
676 16, /* rightshift */
677 1, /* size (0 = byte, 1 = short, 2 = long) */
678 16, /* bitsize */
b34976b6 679 FALSE, /* pc_relative */
252b5132
RH		 680 0, /* bitpos */
681 complain_overflow_bitfield, /* complain_on_overflow */
682 ppc_elf_addr16_ha_reloc, /* special_function */
683 "R_PPC_PLT16_HA", /* name */
b34976b6 684 FALSE, /* partial_inplace */
252b5132
RH		 685 0, /* src_mask */
686 0xffff, /* dst_mask */
b34976b6 687 FALSE), /* pcrel_offset */
252b5132
RH		 688
689 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
690 small data items. */
691 HOWTO (R_PPC_SDAREL16, /* type */
692 0, /* rightshift */
693 1, /* size (0 = byte, 1 = short, 2 = long) */
694 16, /* bitsize */
b34976b6 695 FALSE, /* pc_relative */
252b5132
RH		 696 0, /* bitpos */
697 complain_overflow_signed, /* complain_on_overflow */
698 bfd_elf_generic_reloc, /* special_function */
699 "R_PPC_SDAREL16", /* name */
b34976b6 700 FALSE, /* partial_inplace */
252b5132
RH		 701 0, /* src_mask */
702 0xffff, /* dst_mask */
b34976b6 703 FALSE), /* pcrel_offset */
252b5132 704
c061c2d8 705 /* 16-bit section relative relocation. */
252b5132
RH		 706 HOWTO (R_PPC_SECTOFF, /* type */
707 0, /* rightshift */
c061c2d8
AM		 708 1, /* size (0 = byte, 1 = short, 2 = long) */
709 16, /* bitsize */
b34976b6 710 FALSE, /* pc_relative */
252b5132
RH		 711 0, /* bitpos */
712 complain_overflow_bitfield, /* complain_on_overflow */
713 bfd_elf_generic_reloc, /* special_function */
714 "R_PPC_SECTOFF", /* name */
b34976b6 715 FALSE, /* partial_inplace */
252b5132 716 0, /* src_mask */
c061c2d8 717 0xffff, /* dst_mask */
b34976b6 718 FALSE), /* pcrel_offset */
252b5132 719
c3668558 720 /* 16-bit lower half section relative relocation. */
252b5132
RH		 721 HOWTO (R_PPC_SECTOFF_LO, /* type */
722 0, /* rightshift */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
724 16, /* bitsize */
b34976b6 725 FALSE, /* pc_relative */
252b5132
RH		 726 0, /* bitpos */
727 complain_overflow_dont, /* complain_on_overflow */
728 bfd_elf_generic_reloc, /* special_function */
729 "R_PPC_SECTOFF_LO", /* name */
b34976b6 730 FALSE, /* partial_inplace */
252b5132
RH		 731 0, /* src_mask */
732 0xffff, /* dst_mask */
b34976b6 733 FALSE), /* pcrel_offset */
252b5132 734
c3668558 735 /* 16-bit upper half section relative relocation. */
252b5132
RH		 736 HOWTO (R_PPC_SECTOFF_HI, /* type */
737 16, /* rightshift */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
739 16, /* bitsize */
b34976b6 740 FALSE, /* pc_relative */
252b5132
RH		 741 0, /* bitpos */
742 complain_overflow_bitfield, /* complain_on_overflow */
743 bfd_elf_generic_reloc, /* special_function */
744 "R_PPC_SECTOFF_HI", /* name */
b34976b6 745 FALSE, /* partial_inplace */
252b5132
RH		 746 0, /* src_mask */
747 0xffff, /* dst_mask */
b34976b6 748 FALSE), /* pcrel_offset */
252b5132 749
c3668558 750 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH		 751 HOWTO (R_PPC_SECTOFF_HA, /* type */
752 16, /* rightshift */
753 1, /* size (0 = byte, 1 = short, 2 = long) */
754 16, /* bitsize */
b34976b6 755 FALSE, /* pc_relative */
252b5132
RH		 756 0, /* bitpos */
757 complain_overflow_bitfield, /* complain_on_overflow */
758 ppc_elf_addr16_ha_reloc, /* special_function */
759 "R_PPC_SECTOFF_HA", /* name */
b34976b6 760 FALSE, /* partial_inplace */
252b5132
RH		 761 0, /* src_mask */
762 0xffff, /* dst_mask */
b34976b6 763 FALSE), /* pcrel_offset */
252b5132 764
727fc41e 765 /* Marker relocs for TLS. */
7619e7c7 766 HOWTO (R_PPC_TLS,
252b5132
RH		 767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 32, /* bitsize */
b34976b6 770 FALSE, /* pc_relative */
252b5132 771 0, /* bitpos */
7619e7c7 772 complain_overflow_dont, /* complain_on_overflow */
252b5132 773 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM		 774 "R_PPC_TLS", /* name */
775 FALSE, /* partial_inplace */
776 0, /* src_mask */
777 0, /* dst_mask */
778 FALSE), /* pcrel_offset */
779
727fc41e
AM		 780 HOWTO (R_PPC_TLSGD,
781 0, /* rightshift */
782 2, /* size (0 = byte, 1 = short, 2 = long) */
783 32, /* bitsize */
784 FALSE, /* pc_relative */
785 0, /* bitpos */
786 complain_overflow_dont, /* complain_on_overflow */
787 bfd_elf_generic_reloc, /* special_function */
788 "R_PPC_TLSGD", /* name */
789 FALSE, /* partial_inplace */
790 0, /* src_mask */
791 0, /* dst_mask */
792 FALSE), /* pcrel_offset */
793
794 HOWTO (R_PPC_TLSLD,
795 0, /* rightshift */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
797 32, /* bitsize */
798 FALSE, /* pc_relative */
799 0, /* bitpos */
800 complain_overflow_dont, /* complain_on_overflow */
801 bfd_elf_generic_reloc, /* special_function */
802 "R_PPC_TLSLD", /* name */
803 FALSE, /* partial_inplace */
804 0, /* src_mask */
805 0, /* dst_mask */
806 FALSE), /* pcrel_offset */
807
7619e7c7
AM		 808 /* Computes the load module index of the load module that contains the
809 definition of its TLS sym. */
810 HOWTO (R_PPC_DTPMOD32,
811 0, /* rightshift */
812 2, /* size (0 = byte, 1 = short, 2 = long) */
813 32, /* bitsize */
814 FALSE, /* pc_relative */
815 0, /* bitpos */
816 complain_overflow_dont, /* complain_on_overflow */
817 ppc_elf_unhandled_reloc, /* special_function */
818 "R_PPC_DTPMOD32", /* name */
b34976b6 819 FALSE, /* partial_inplace */
252b5132
RH		 820 0, /* src_mask */
821 0xffffffff, /* dst_mask */
b34976b6 822 FALSE), /* pcrel_offset */
252b5132 823
7619e7c7
AM		 824 /* Computes a dtv-relative displacement, the difference between the value
825 of sym+add and the base address of the thread-local storage block that
826 contains the definition of sym, minus 0x8000. */
827 HOWTO (R_PPC_DTPREL32,
828 0, /* rightshift */
829 2, /* size (0 = byte, 1 = short, 2 = long) */
830 32, /* bitsize */
831 FALSE, /* pc_relative */
832 0, /* bitpos */
833 complain_overflow_dont, /* complain_on_overflow */
834 ppc_elf_unhandled_reloc, /* special_function */
835 "R_PPC_DTPREL32", /* name */
836 FALSE, /* partial_inplace */
837 0, /* src_mask */
838 0xffffffff, /* dst_mask */
839 FALSE), /* pcrel_offset */
840
841 /* A 16 bit dtprel reloc. */
842 HOWTO (R_PPC_DTPREL16,
252b5132
RH		 843 0, /* rightshift */
844 1, /* size (0 = byte, 1 = short, 2 = long) */
845 16, /* bitsize */
b34976b6 846 FALSE, /* pc_relative */
252b5132 847 0, /* bitpos */
7619e7c7
AM		 848 complain_overflow_signed, /* complain_on_overflow */
849 ppc_elf_unhandled_reloc, /* special_function */
850 "R_PPC_DTPREL16", /* 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 /* Like DTPREL16, but no overflow. */
857 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH		 858 0, /* rightshift */
859 1, /* size (0 = byte, 1 = short, 2 = long) */
860 16, /* bitsize */
b34976b6 861 FALSE, /* pc_relative */
252b5132 862 0, /* bitpos */
7619e7c7
AM		 863 complain_overflow_dont, /* complain_on_overflow */
864 ppc_elf_unhandled_reloc, /* special_function */
865 "R_PPC_DTPREL16_LO", /* name */
b34976b6 866 FALSE, /* partial_inplace */
252b5132
RH		 867 0, /* src_mask */
868 0xffff, /* dst_mask */
b34976b6 869 FALSE), /* pcrel_offset */
252b5132 870
7619e7c7
AM		 871 /* Like DTPREL16_LO, but next higher group of 16 bits. */
872 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH		 873 16, /* rightshift */
874 1, /* size (0 = byte, 1 = short, 2 = long) */
875 16, /* bitsize */
b34976b6 876 FALSE, /* pc_relative */
252b5132
RH		 877 0, /* bitpos */
878 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 879 ppc_elf_unhandled_reloc, /* special_function */
880 "R_PPC_DTPREL16_HI", /* name */
b34976b6 881 FALSE, /* partial_inplace */
252b5132
RH		 882 0, /* src_mask */
883 0xffff, /* dst_mask */
b34976b6 884 FALSE), /* pcrel_offset */
252b5132 885
7619e7c7
AM		 886 /* Like DTPREL16_HI, but adjust for low 16 bits. */
887 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH		 888 16, /* rightshift */
889 1, /* size (0 = byte, 1 = short, 2 = long) */
890 16, /* bitsize */
b34976b6 891 FALSE, /* pc_relative */
252b5132
RH		 892 0, /* bitpos */
893 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 894 ppc_elf_unhandled_reloc, /* special_function */
895 "R_PPC_DTPREL16_HA", /* name */
b34976b6 896 FALSE, /* partial_inplace */
252b5132
RH		 897 0, /* src_mask */
898 0xffff, /* dst_mask */
b34976b6 899 FALSE), /* pcrel_offset */
252b5132 900
7619e7c7
AM		 901 /* Computes a tp-relative displacement, the difference between the value of
902 sym+add and the value of the thread pointer (r13). */
903 HOWTO (R_PPC_TPREL32,
904 0, /* rightshift */
905 2, /* size (0 = byte, 1 = short, 2 = long) */
906 32, /* 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_TPREL32", /* name */
912 FALSE, /* partial_inplace */
913 0, /* src_mask */
914 0xffffffff, /* dst_mask */
915 FALSE), /* pcrel_offset */
916
917 /* A 16 bit tprel reloc. */
918 HOWTO (R_PPC_TPREL16,
252b5132
RH		 919 0, /* rightshift */
920 1, /* size (0 = byte, 1 = short, 2 = long) */
921 16, /* bitsize */
b34976b6 922 FALSE, /* pc_relative */
252b5132 923 0, /* bitpos */
7619e7c7
AM		 924 complain_overflow_signed, /* complain_on_overflow */
925 ppc_elf_unhandled_reloc, /* special_function */
926 "R_PPC_TPREL16", /* name */
b34976b6 927 FALSE, /* partial_inplace */
252b5132
RH		 928 0, /* src_mask */
929 0xffff, /* dst_mask */
b34976b6 930 FALSE), /* pcrel_offset */
252b5132 931
7619e7c7
AM		 932 /* Like TPREL16, but no overflow. */
933 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH		 934 0, /* rightshift */
935 1, /* size (0 = byte, 1 = short, 2 = long) */
936 16, /* bitsize */
b34976b6 937 FALSE, /* pc_relative */
252b5132 938 0, /* bitpos */
7619e7c7
AM		 939 complain_overflow_dont, /* complain_on_overflow */
940 ppc_elf_unhandled_reloc, /* special_function */
941 "R_PPC_TPREL16_LO", /* name */
b34976b6 942 FALSE, /* partial_inplace */
252b5132
RH		 943 0, /* src_mask */
944 0xffff, /* dst_mask */
b34976b6 945 FALSE), /* pcrel_offset */
252b5132 946
7619e7c7
AM		 947 /* Like TPREL16_LO, but next higher group of 16 bits. */
948 HOWTO (R_PPC_TPREL16_HI,
949 16, /* rightshift */
950 1, /* size (0 = byte, 1 = short, 2 = long) */
951 16, /* bitsize */
952 FALSE, /* pc_relative */
953 0, /* bitpos */
954 complain_overflow_dont, /* complain_on_overflow */
955 ppc_elf_unhandled_reloc, /* special_function */
956 "R_PPC_TPREL16_HI", /* name */
957 FALSE, /* partial_inplace */
958 0, /* src_mask */
959 0xffff, /* dst_mask */
960 FALSE), /* pcrel_offset */
961
962 /* Like TPREL16_HI, but adjust for low 16 bits. */
963 HOWTO (R_PPC_TPREL16_HA,
964 16, /* rightshift */
965 1, /* size (0 = byte, 1 = short, 2 = long) */
966 16, /* bitsize */
967 FALSE, /* pc_relative */
968 0, /* bitpos */
969 complain_overflow_dont, /* complain_on_overflow */
970 ppc_elf_unhandled_reloc, /* special_function */
971 "R_PPC_TPREL16_HA", /* name */
972 FALSE, /* partial_inplace */
973 0, /* src_mask */
974 0xffff, /* dst_mask */
975 FALSE), /* pcrel_offset */
976
977 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
978 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
979 to the first entry. */
980 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH		 981 0, /* rightshift */
982 1, /* size (0 = byte, 1 = short, 2 = long) */
983 16, /* bitsize */
b34976b6 984 FALSE, /* pc_relative */
252b5132
RH		 985 0, /* bitpos */
986 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 987 ppc_elf_unhandled_reloc, /* special_function */
988 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 989 FALSE, /* partial_inplace */
252b5132
RH		 990 0, /* src_mask */
991 0xffff, /* dst_mask */
b34976b6 992 FALSE), /* pcrel_offset */
252b5132 993
7619e7c7
AM		 994 /* Like GOT_TLSGD16, but no overflow. */
995 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 996 0, /* rightshift */
7619e7c7 997 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 998 16, /* bitsize */
b34976b6 999 FALSE, /* pc_relative */
252b5132 1000 0, /* bitpos */
7619e7c7
AM		 1001 complain_overflow_dont, /* complain_on_overflow */
1002 ppc_elf_unhandled_reloc, /* special_function */
1003 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1004 FALSE, /* partial_inplace */
252b5132
RH		 1005 0, /* src_mask */
1006 0xffff, /* dst_mask */
b34976b6 1007 FALSE), /* pcrel_offset */
252b5132 1008
7619e7c7
AM		 1009 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1010 HOWTO (R_PPC_GOT_TLSGD16_HI,
1011 16, /* rightshift */
1012 1, /* size (0 = byte, 1 = short, 2 = long) */
1013 16, /* bitsize */
1014 FALSE, /* pc_relative */
1015 0, /* bitpos */
1016 complain_overflow_dont, /* complain_on_overflow */
1017 ppc_elf_unhandled_reloc, /* special_function */
1018 "R_PPC_GOT_TLSGD16_HI", /* name */
1019 FALSE, /* partial_inplace */
1020 0, /* src_mask */
1021 0xffff, /* dst_mask */
1022 FALSE), /* pcrel_offset */
252b5132 1023
7619e7c7
AM		 1024 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1025 HOWTO (R_PPC_GOT_TLSGD16_HA,
1026 16, /* rightshift */
1027 1, /* size (0 = byte, 1 = short, 2 = long) */
1028 16, /* bitsize */
1029 FALSE, /* pc_relative */
1030 0, /* bitpos */
1031 complain_overflow_dont, /* complain_on_overflow */
1032 ppc_elf_unhandled_reloc, /* special_function */
1033 "R_PPC_GOT_TLSGD16_HA", /* name */
1034 FALSE, /* partial_inplace */
1035 0, /* src_mask */
1036 0xffff, /* dst_mask */
1037 FALSE), /* pcrel_offset */
1038
1039 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1040 with values (sym+add)@dtpmod and zero, and computes the offset to the
1041 first entry. */
1042 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH		 1043 0, /* rightshift */
1044 1, /* size (0 = byte, 1 = short, 2 = long) */
1045 16, /* bitsize */
7619e7c7 1046 FALSE, /* pc_relative */
252b5132
RH		 1047 0, /* bitpos */
1048 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 1049 ppc_elf_unhandled_reloc, /* special_function */
1050 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1051 FALSE, /* partial_inplace */
252b5132
RH		 1052 0, /* src_mask */
1053 0xffff, /* dst_mask */
b34976b6 1054 FALSE), /* pcrel_offset */
252b5132 1055
7619e7c7
AM		 1056 /* Like GOT_TLSLD16, but no overflow. */
1057 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1058 0, /* rightshift */
7619e7c7
AM		 1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1060 16, /* bitsize */
b34976b6 1061 FALSE, /* pc_relative */
252b5132
RH		 1062 0, /* bitpos */
1063 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 1064 ppc_elf_unhandled_reloc, /* special_function */
1065 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1066 FALSE, /* partial_inplace */
252b5132 1067 0, /* src_mask */
7619e7c7 1068 0xffff, /* dst_mask */
b34976b6 1069 FALSE), /* pcrel_offset */
252b5132 1070
7619e7c7
AM		 1071 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1072 HOWTO (R_PPC_GOT_TLSLD16_HI,
1073 16, /* rightshift */
1074 1, /* size (0 = byte, 1 = short, 2 = long) */
1075 16, /* bitsize */
b34976b6 1076 FALSE, /* pc_relative */
252b5132
RH		 1077 0, /* bitpos */
1078 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM		 1079 ppc_elf_unhandled_reloc, /* special_function */
1080 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1081 FALSE, /* partial_inplace */
252b5132 1082 0, /* src_mask */
7619e7c7 1083 0xffff, /* dst_mask */
b34976b6 1084 FALSE), /* pcrel_offset */
252b5132 1085
7619e7c7
AM		 1086 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1087 HOWTO (R_PPC_GOT_TLSLD16_HA,
1088 16, /* rightshift */
1089 1, /* size (0 = byte, 1 = short, 2 = long) */
1090 16, /* bitsize */
1091 FALSE, /* pc_relative */
1092 0, /* bitpos */
1093 complain_overflow_dont, /* complain_on_overflow */
1094 ppc_elf_unhandled_reloc, /* special_function */
1095 "R_PPC_GOT_TLSLD16_HA", /* name */
1096 FALSE, /* partial_inplace */
1097 0, /* src_mask */
1098 0xffff, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1100
1101 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1102 the offset to the entry. */
1103 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH		 1104 0, /* rightshift */
1105 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 16, /* bitsize */
b34976b6 1107 FALSE, /* pc_relative */
252b5132
RH		 1108 0, /* bitpos */
1109 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM		 1110 ppc_elf_unhandled_reloc, /* special_function */
1111 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1112 FALSE, /* partial_inplace */
252b5132
RH		 1113 0, /* src_mask */
1114 0xffff, /* dst_mask */
b34976b6 1115 FALSE), /* pcrel_offset */
252b5132 1116
7619e7c7
AM		 1117 /* Like GOT_DTPREL16, but no overflow. */
1118 HOWTO (R_PPC_GOT_DTPREL16_LO,
1119 0, /* rightshift */
1120 1, /* size (0 = byte, 1 = short, 2 = long) */
1121 16, /* bitsize */
1122 FALSE, /* pc_relative */
1123 0, /* bitpos */
1124 complain_overflow_dont, /* complain_on_overflow */
1125 ppc_elf_unhandled_reloc, /* special_function */
1126 "R_PPC_GOT_DTPREL16_LO", /* name */
1127 FALSE, /* partial_inplace */
1128 0, /* src_mask */
1129 0xffff, /* dst_mask */
1130 FALSE), /* pcrel_offset */
252b5132 1131
7619e7c7
AM		 1132 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1133 HOWTO (R_PPC_GOT_DTPREL16_HI,
1134 16, /* rightshift */
1135 1, /* size (0 = byte, 1 = short, 2 = long) */
1136 16, /* bitsize */
1137 FALSE, /* pc_relative */
1138 0, /* bitpos */
1139 complain_overflow_dont, /* complain_on_overflow */
1140 ppc_elf_unhandled_reloc, /* special_function */
1141 "R_PPC_GOT_DTPREL16_HI", /* name */
1142 FALSE, /* partial_inplace */
1143 0, /* src_mask */
1144 0xffff, /* dst_mask */
1145 FALSE), /* pcrel_offset */
252b5132 1146
7619e7c7
AM		 1147 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1148 HOWTO (R_PPC_GOT_DTPREL16_HA,
1149 16, /* rightshift */
1150 1, /* size (0 = byte, 1 = short, 2 = long) */
1151 16, /* bitsize */
1152 FALSE, /* pc_relative */
1153 0, /* bitpos */
1154 complain_overflow_dont, /* complain_on_overflow */
1155 ppc_elf_unhandled_reloc, /* special_function */
1156 "R_PPC_GOT_DTPREL16_HA", /* name */
1157 FALSE, /* partial_inplace */
1158 0, /* src_mask */
1159 0xffff, /* dst_mask */
1160 FALSE), /* pcrel_offset */
c3668558 1161
7619e7c7
AM		 1162 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1163 offset to the entry. */
1164 HOWTO (R_PPC_GOT_TPREL16,
1165 0, /* rightshift */
1166 1, /* size (0 = byte, 1 = short, 2 = long) */
1167 16, /* bitsize */
1168 FALSE, /* pc_relative */
1169 0, /* bitpos */
1170 complain_overflow_signed, /* complain_on_overflow */
1171 ppc_elf_unhandled_reloc, /* special_function */
1172 "R_PPC_GOT_TPREL16", /* name */
1173 FALSE, /* partial_inplace */
1174 0, /* src_mask */
1175 0xffff, /* dst_mask */
1176 FALSE), /* pcrel_offset */
1177
1178 /* Like GOT_TPREL16, but no overflow. */
1179 HOWTO (R_PPC_GOT_TPREL16_LO,
1180 0, /* rightshift */
1181 1, /* size (0 = byte, 1 = short, 2 = long) */
1182 16, /* bitsize */
1183 FALSE, /* pc_relative */
1184 0, /* bitpos */
1185 complain_overflow_dont, /* complain_on_overflow */
1186 ppc_elf_unhandled_reloc, /* special_function */
1187 "R_PPC_GOT_TPREL16_LO", /* name */
1188 FALSE, /* partial_inplace */
1189 0, /* src_mask */
1190 0xffff, /* dst_mask */
1191 FALSE), /* pcrel_offset */
1192
1193 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1194 HOWTO (R_PPC_GOT_TPREL16_HI,
1195 16, /* rightshift */
1196 1, /* size (0 = byte, 1 = short, 2 = long) */
1197 16, /* bitsize */
1198 FALSE, /* pc_relative */
1199 0, /* bitpos */
1200 complain_overflow_dont, /* complain_on_overflow */
1201 ppc_elf_unhandled_reloc, /* special_function */
1202 "R_PPC_GOT_TPREL16_HI", /* name */
1203 FALSE, /* partial_inplace */
1204 0, /* src_mask */
1205 0xffff, /* dst_mask */
1206 FALSE), /* pcrel_offset */
1207
1208 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1209 HOWTO (R_PPC_GOT_TPREL16_HA,
1210 16, /* rightshift */
1211 1, /* size (0 = byte, 1 = short, 2 = long) */
1212 16, /* bitsize */
1213 FALSE, /* pc_relative */
1214 0, /* bitpos */
1215 complain_overflow_dont, /* complain_on_overflow */
1216 ppc_elf_unhandled_reloc, /* special_function */
1217 "R_PPC_GOT_TPREL16_HA", /* name */
1218 FALSE, /* partial_inplace */
1219 0, /* src_mask */
1220 0xffff, /* dst_mask */
1221 FALSE), /* pcrel_offset */
1222
1223 /* The remaining relocs are from the Embedded ELF ABI, and are not
1224 in the SVR4 ELF ABI. */
1225
1226 /* 32 bit value resulting from the addend minus the symbol. */
1227 HOWTO (R_PPC_EMB_NADDR32, /* type */
1228 0, /* rightshift */
1229 2, /* size (0 = byte, 1 = short, 2 = long) */
1230 32, /* bitsize */
1231 FALSE, /* pc_relative */
1232 0, /* bitpos */
1233 complain_overflow_bitfield, /* complain_on_overflow */
1234 bfd_elf_generic_reloc, /* special_function */
1235 "R_PPC_EMB_NADDR32", /* name */
1236 FALSE, /* partial_inplace */
1237 0, /* src_mask */
1238 0xffffffff, /* dst_mask */
1239 FALSE), /* pcrel_offset */
1240
1241 /* 16 bit value resulting from the addend minus the symbol. */
1242 HOWTO (R_PPC_EMB_NADDR16, /* type */
1243 0, /* rightshift */
1244 1, /* size (0 = byte, 1 = short, 2 = long) */
1245 16, /* bitsize */
1246 FALSE, /* pc_relative */
1247 0, /* bitpos */
1248 complain_overflow_bitfield, /* complain_on_overflow */
1249 bfd_elf_generic_reloc, /* special_function */
1250 "R_PPC_EMB_NADDR16", /* name */
1251 FALSE, /* partial_inplace */
1252 0, /* src_mask */
1253 0xffff, /* dst_mask */
1254 FALSE), /* pcrel_offset */
1255
1256 /* 16 bit value resulting from the addend minus the symbol. */
1257 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1258 0, /* rightshift */
1259 1, /* size (0 = byte, 1 = short, 2 = long) */
1260 16, /* bitsize */
1261 FALSE, /* pc_relative */
1262 0, /* bitpos */
1263 complain_overflow_dont,/* complain_on_overflow */
1264 bfd_elf_generic_reloc, /* special_function */
1265 "R_PPC_EMB_ADDR16_LO", /* name */
1266 FALSE, /* partial_inplace */
1267 0, /* src_mask */
1268 0xffff, /* dst_mask */
1269 FALSE), /* pcrel_offset */
1270
1271 /* The high order 16 bits of the addend minus the symbol. */
1272 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1273 16, /* rightshift */
1274 1, /* size (0 = byte, 1 = short, 2 = long) */
1275 16, /* bitsize */
1276 FALSE, /* pc_relative */
1277 0, /* bitpos */
1278 complain_overflow_dont, /* complain_on_overflow */
1279 bfd_elf_generic_reloc, /* special_function */
1280 "R_PPC_EMB_NADDR16_HI", /* name */
1281 FALSE, /* partial_inplace */
1282 0, /* src_mask */
1283 0xffff, /* dst_mask */
1284 FALSE), /* pcrel_offset */
1285
1286 /* The high order 16 bits of the result of the addend minus the address,
1287 plus 1 if the contents of the low 16 bits, treated as a signed number,
1288 is negative. */
1289 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1290 16, /* rightshift */
1291 1, /* size (0 = byte, 1 = short, 2 = long) */
1292 16, /* bitsize */
1293 FALSE, /* pc_relative */
1294 0, /* bitpos */
1295 complain_overflow_dont, /* complain_on_overflow */
25dbc73a
AM		 1296 ppc_elf_addr16_ha_reloc, /* special_function */
1297 "R_PPC_EMB_NADDR16_HA", /* name */
1298 FALSE, /* partial_inplace */
1299 0, /* src_mask */
1300 0xffff, /* dst_mask */
1301 FALSE), /* pcrel_offset */
1302
1303 /* 16 bit value resulting from allocating a 4 byte word to hold an
1304 address in the .sdata section, and returning the offset from
1305 _SDA_BASE_ for that relocation. */
1306 HOWTO (R_PPC_EMB_SDAI16, /* type */
1307 0, /* rightshift */
1308 1, /* size (0 = byte, 1 = short, 2 = long) */
1309 16, /* bitsize */
1310 FALSE, /* pc_relative */
1311 0, /* bitpos */
bd6c6e2b 1312 complain_overflow_signed, /* complain_on_overflow */
25dbc73a
AM		 1313 bfd_elf_generic_reloc, /* special_function */
1314 "R_PPC_EMB_SDAI16", /* name */
1315 FALSE, /* partial_inplace */
1316 0, /* src_mask */
1317 0xffff, /* dst_mask */
1318 FALSE), /* pcrel_offset */
1319
1320 /* 16 bit value resulting from allocating a 4 byte word to hold an
1321 address in the .sdata2 section, and returning the offset from
1322 _SDA2_BASE_ for that relocation. */
1323 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1324 0, /* rightshift */
1325 1, /* size (0 = byte, 1 = short, 2 = long) */
1326 16, /* bitsize */
1327 FALSE, /* pc_relative */
1328 0, /* bitpos */
bd6c6e2b 1329 complain_overflow_signed, /* complain_on_overflow */
25dbc73a
AM		 1330 bfd_elf_generic_reloc, /* special_function */
1331 "R_PPC_EMB_SDA2I16", /* name */
1332 FALSE, /* partial_inplace */
1333 0, /* src_mask */
1334 0xffff, /* dst_mask */
1335 FALSE), /* pcrel_offset */
1336
1337 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1338 small data items. */
1339 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1340 0, /* rightshift */
1341 1, /* size (0 = byte, 1 = short, 2 = long) */
1342 16, /* bitsize */
1343 FALSE, /* pc_relative */
1344 0, /* bitpos */
1345 complain_overflow_signed, /* complain_on_overflow */
1346 bfd_elf_generic_reloc, /* special_function */
1347 "R_PPC_EMB_SDA2REL", /* name */
1348 FALSE, /* partial_inplace */
1349 0, /* src_mask */
1350 0xffff, /* dst_mask */
1351 FALSE), /* pcrel_offset */
1352
1353 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1354 signed offset from the appropriate base, and filling in the register
1355 field with the appropriate register (0, 2, or 13). */
1356 HOWTO (R_PPC_EMB_SDA21, /* type */
1357 0, /* rightshift */
1358 2, /* size (0 = byte, 1 = short, 2 = long) */
1359 16, /* bitsize */
1360 FALSE, /* pc_relative */
1361 0, /* bitpos */
1362 complain_overflow_signed, /* complain_on_overflow */
1363 bfd_elf_generic_reloc, /* special_function */
1364 "R_PPC_EMB_SDA21", /* name */
1365 FALSE, /* partial_inplace */
1366 0, /* src_mask */
1367 0xffff, /* dst_mask */
1368 FALSE), /* pcrel_offset */
1369
1370 /* Relocation not handled: R_PPC_EMB_MRKREF */
1371 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1372 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1373 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1374 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1375 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1376
1377 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1378 in the 16 bit signed offset from the appropriate base, and filling in the
1379 register field with the appropriate register (0, 2, or 13). */
1380 HOWTO (R_PPC_EMB_RELSDA, /* type */
1381 0, /* rightshift */
1382 1, /* size (0 = byte, 1 = short, 2 = long) */
1383 16, /* bitsize */
ddfd6795 1384 FALSE, /* pc_relative */
25dbc73a
AM		 1385 0, /* bitpos */
1386 complain_overflow_signed, /* complain_on_overflow */
1387 bfd_elf_generic_reloc, /* special_function */
1388 "R_PPC_EMB_RELSDA", /* name */
1389 FALSE, /* partial_inplace */
1390 0, /* src_mask */
1391 0xffff, /* dst_mask */
1392 FALSE), /* pcrel_offset */
1393
e054468f
AM		 1394 HOWTO (R_PPC_IRELATIVE, /* type */
1395 0, /* rightshift */
1396 2, /* size (0 = byte, 1 = short, 2 = long) */
1397 32, /* bitsize */
1398 FALSE, /* pc_relative */
1399 0, /* bitpos */
1400 complain_overflow_bitfield, /* complain_on_overflow */
1401 bfd_elf_generic_reloc, /* special_function */
1402 "R_PPC_IRELATIVE", /* name */
1403 FALSE, /* partial_inplace */
1404 0, /* src_mask */
1405 0xffffffff, /* dst_mask */
1406 FALSE), /* pcrel_offset */
1407
d7128ce4
AM		 1408 /* A 16 bit relative relocation. */
1409 HOWTO (R_PPC_REL16, /* type */
1410 0, /* rightshift */
1411 1, /* size (0 = byte, 1 = short, 2 = long) */
1412 16, /* bitsize */
1413 TRUE, /* pc_relative */
1414 0, /* bitpos */
1415 complain_overflow_bitfield, /* complain_on_overflow */
1416 bfd_elf_generic_reloc, /* special_function */
1417 "R_PPC_REL16", /* name */
1418 FALSE, /* partial_inplace */
1419 0, /* src_mask */
1420 0xffff, /* dst_mask */
1421 TRUE), /* pcrel_offset */
1422
1423 /* A 16 bit relative relocation without overflow. */
1424 HOWTO (R_PPC_REL16_LO, /* type */
1425 0, /* rightshift */
1426 1, /* size (0 = byte, 1 = short, 2 = long) */
1427 16, /* bitsize */
1428 TRUE, /* pc_relative */
1429 0, /* bitpos */
1430 complain_overflow_dont,/* complain_on_overflow */
1431 bfd_elf_generic_reloc, /* special_function */
1432 "R_PPC_REL16_LO", /* name */
1433 FALSE, /* partial_inplace */
1434 0, /* src_mask */
1435 0xffff, /* dst_mask */
1436 TRUE), /* pcrel_offset */
1437
1438 /* The high order 16 bits of a relative address. */
1439 HOWTO (R_PPC_REL16_HI, /* type */
1440 16, /* rightshift */
1441 1, /* size (0 = byte, 1 = short, 2 = long) */
1442 16, /* bitsize */
1443 TRUE, /* pc_relative */
1444 0, /* bitpos */
1445 complain_overflow_dont, /* complain_on_overflow */
1446 bfd_elf_generic_reloc, /* special_function */
1447 "R_PPC_REL16_HI", /* name */
1448 FALSE, /* partial_inplace */
1449 0, /* src_mask */
1450 0xffff, /* dst_mask */
1451 TRUE), /* pcrel_offset */
1452
1453 /* The high order 16 bits of a relative address, plus 1 if the contents of
1454 the low 16 bits, treated as a signed number, is negative. */
1455 HOWTO (R_PPC_REL16_HA, /* type */
1456 16, /* rightshift */
1457 1, /* size (0 = byte, 1 = short, 2 = long) */
1458 16, /* bitsize */
1459 TRUE, /* pc_relative */
1460 0, /* bitpos */
1461 complain_overflow_dont, /* complain_on_overflow */
1462 ppc_elf_addr16_ha_reloc, /* special_function */
1463 "R_PPC_REL16_HA", /* name */
1464 FALSE, /* partial_inplace */
1465 0, /* src_mask */
1466 0xffff, /* dst_mask */
1467 TRUE), /* pcrel_offset */
1468
25dbc73a
AM		 1469 /* GNU extension to record C++ vtable hierarchy. */
1470 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1471 0, /* rightshift */
1472 0, /* size (0 = byte, 1 = short, 2 = long) */
1473 0, /* bitsize */
1474 FALSE, /* pc_relative */
1475 0, /* bitpos */
1476 complain_overflow_dont, /* complain_on_overflow */
1477 NULL, /* special_function */
1478 "R_PPC_GNU_VTINHERIT", /* name */
1479 FALSE, /* partial_inplace */
1480 0, /* src_mask */
1481 0, /* dst_mask */
1482 FALSE), /* pcrel_offset */
1483
1484 /* GNU extension to record C++ vtable member usage. */
1485 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1486 0, /* rightshift */
1487 0, /* size (0 = byte, 1 = short, 2 = long) */
1488 0, /* bitsize */
1489 FALSE, /* pc_relative */
1490 0, /* bitpos */
1491 complain_overflow_dont, /* complain_on_overflow */
1492 NULL, /* special_function */
1493 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM		 1494 FALSE, /* partial_inplace */
1495 0, /* src_mask */
25dbc73a 1496 0, /* dst_mask */
7619e7c7
AM		 1497 FALSE), /* pcrel_offset */
1498
25dbc73a
AM		 1499 /* Phony reloc to handle AIX style TOC entries. */
1500 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM		 1501 0, /* rightshift */
1502 1, /* size (0 = byte, 1 = short, 2 = long) */
1503 16, /* bitsize */
1504 FALSE, /* pc_relative */
1505 0, /* bitpos */
25dbc73a 1506 complain_overflow_signed, /* complain_on_overflow */
7619e7c7 1507 bfd_elf_generic_reloc, /* special_function */
25dbc73a 1508 "R_PPC_TOC16", /* name */
7619e7c7
AM		 1509 FALSE, /* partial_inplace */
1510 0, /* src_mask */
1511 0xffff, /* dst_mask */
1512 FALSE), /* pcrel_offset */
25dbc73a
AM		 1513};
1514\f
1515/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1516
1517static void
1518ppc_elf_howto_init (void)
1519{
1520 unsigned int i, type;
1521
1522 for (i = 0;
1523 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1524 i++)
1525 {
1526 type = ppc_elf_howto_raw[i].type;
1527 if (type >= (sizeof (ppc_elf_howto_table)
1528 / sizeof (ppc_elf_howto_table[0])))
1529 abort ();
1530 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1531 }
1532}
1533
1534static reloc_howto_type *
1535ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1536 bfd_reloc_code_real_type code)
1537{
1538 enum elf_ppc_reloc_type r;
1539
1540 /* Initialize howto table if not already done. */
1541 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1542 ppc_elf_howto_init ();
1543
1544 switch (code)
1545 {
1546 default:
1547 return NULL;
1548
1549 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1550 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1551 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1552 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1553 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1554 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1555 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1556 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1557 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1558 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1559 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1560 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1561 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1562 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1563 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1564 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1565 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1566 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1567 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1568 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1569 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1570 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1571 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1572 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1573 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1574 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1575 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1576 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1577 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1578 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1579 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1580 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1581 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1582 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1583 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1584 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM		 1585 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1586 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a
AM		 1587 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1588 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1589 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1590 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1591 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1592 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1593 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1594 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1595 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1596 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1597 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1598 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1599 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1600 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1601 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1602 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1603 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1604 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1605 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1606 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1607 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1608 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1609 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1610 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1611 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1612 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1613 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1614 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1615 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1616 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1617 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1618 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1619 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1620 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1621 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1622 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1623 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1624 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1625 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1626 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1627 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1628 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1629 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
d7128ce4
AM		 1630 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1631 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1632 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1633 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
25dbc73a
AM		 1634 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1635 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1636 }
1637
1638 return ppc_elf_howto_table[r];
1639};
1640
157090f7
AM		 1641static reloc_howto_type *
1642ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1643 const char *r_name)
1644{
1645 unsigned int i;
1646
1647 for (i = 0;
1648 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1649 i++)
1650 if (ppc_elf_howto_raw[i].name != NULL
1651 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
1652 return &ppc_elf_howto_raw[i];
1653
1654 return NULL;
1655}
1656
25dbc73a
AM		 1657/* Set the howto pointer for a PowerPC ELF reloc. */
1658
1659static void
1660ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1661 arelent *cache_ptr,
1662 Elf_Internal_Rela *dst)
1663{
1664 /* Initialize howto table if not already done. */
1665 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1666 ppc_elf_howto_init ();
1667
1668 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1669 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
375de94a
AM		 1670
1671 /* Just because the above assert didn't trigger doesn't mean that
1672 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
1673 if (!cache_ptr->howto)
1674 {
1675 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
1676 abfd, ELF32_R_TYPE (dst->r_info));
1677 bfd_set_error (bfd_error_bad_value);
1678
1679 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
1680 }
25dbc73a
AM		 1681}
1682
d7128ce4 1683/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM		 1684
1685static bfd_reloc_status_type
1686ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1687 arelent *reloc_entry,
1688 asymbol *symbol,
1689 void *data ATTRIBUTE_UNUSED,
1690 asection *input_section,
1691 bfd *output_bfd,
1692 char **error_message ATTRIBUTE_UNUSED)
1693{
1694 bfd_vma relocation;
1695
1696 if (output_bfd != NULL)
1697 {
1698 reloc_entry->address += input_section->output_offset;
1699 return bfd_reloc_ok;
1700 }
1701
1702 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1703 return bfd_reloc_outofrange;
1704
1705 if (bfd_is_com_section (symbol->section))
1706 relocation = 0;
1707 else
1708 relocation = symbol->value;
1709
1710 relocation += symbol->section->output_section->vma;
1711 relocation += symbol->section->output_offset;
1712 relocation += reloc_entry->addend;
d7128ce4
AM		 1713 if (reloc_entry->howto->pc_relative)
1714 relocation -= reloc_entry->address;
25dbc73a
AM		 1715
1716 reloc_entry->addend += (relocation & 0x8000) << 1;
1717
1718 return bfd_reloc_continue;
1719}
1720
1721static bfd_reloc_status_type
1722ppc_elf_unhandled_reloc (bfd *abfd,
1723 arelent *reloc_entry,
1724 asymbol *symbol,
1725 void *data,
1726 asection *input_section,
1727 bfd *output_bfd,
1728 char **error_message)
1729{
1730 /* If this is a relocatable link (output_bfd test tells us), just
1731 call the generic function. Any adjustment will be done at final
1732 link time. */
1733 if (output_bfd != NULL)
1734 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
1735 input_section, output_bfd, error_message);
1736
1737 if (error_message != NULL)
1738 {
1739 static char buf[60];
1740 sprintf (buf, _("generic linker can't handle %s"),
1741 reloc_entry->howto->name);
1742 *error_message = buf;
1743 }
1744 return bfd_reloc_dangerous;
1745}
1746\f
1747/* Sections created by the linker. */
1748
1749typedef struct elf_linker_section
1750{
c9a2f333 1751 /* Pointer to the bfd section. */
25dbc73a 1752 asection *section;
c9a2f333
AM		 1753 /* Section name. */
1754 const char *name;
1755 /* Associated bss section name. */
1756 const char *bss_name;
1757 /* Associated symbol name. */
1758 const char *sym_name;
046183de
AM		 1759 /* Associated symbol. */
1760 struct elf_link_hash_entry *sym;
25dbc73a
AM		 1761} elf_linker_section_t;
1762
1763/* Linked list of allocated pointer entries. This hangs off of the
1764 symbol lists, and provides allows us to return different pointers,
1765 based on different addend's. */
1766
1767typedef struct elf_linker_section_pointers
1768{
1769 /* next allocated pointer for this symbol */
1770 struct elf_linker_section_pointers *next;
1771 /* offset of pointer from beginning of section */
1772 bfd_vma offset;
1773 /* addend used */
1774 bfd_vma addend;
1775 /* which linker section this is */
1776 elf_linker_section_t *lsect;
25dbc73a
AM		 1777} elf_linker_section_pointers_t;
1778
1779struct ppc_elf_obj_tdata
1780{
1781 struct elf_obj_tdata elf;
1782
1783 /* A mapping from local symbols to offsets into the various linker
1784 sections added. This is index by the symbol index. */
1785 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM		 1786
1787 /* Flags used to auto-detect plt type. */
1788 unsigned int makes_plt_call : 1;
1789 unsigned int has_rel16 : 1;
25dbc73a
AM		 1790};
1791
1792#define ppc_elf_tdata(bfd) \
1793 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 1794
25dbc73a
AM		 1795#define elf_local_ptr_offsets(bfd) \
1796 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 1797
0c8d6e5c
AM		 1798#define is_ppc_elf(bfd) \
1799 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 1800 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 1801
25dbc73a 1802/* Override the generic function because we store some extras. */
7619e7c7 1803
25dbc73a
AM		 1804static bfd_boolean
1805ppc_elf_mkobject (bfd *abfd)
1806{
0ffa91dd 1807 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 1808 PPC32_ELF_DATA);
25dbc73a 1809}
7619e7c7 1810
25dbc73a
AM		 1811/* Fix bad default arch selected for a 32 bit input bfd when the
1812 default is 64 bit. */
7619e7c7 1813
25dbc73a
AM		 1814static bfd_boolean
1815ppc_elf_object_p (bfd *abfd)
1816{
1817 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
1818 {
1819 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 1820
25dbc73a
AM		 1821 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
1822 {
1823 /* Relies on arch after 64 bit default being 32 bit default. */
1824 abfd->arch_info = abfd->arch_info->next;
1825 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
1826 }
1827 }
1828 return TRUE;
1829}
7619e7c7 1830
25dbc73a 1831/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 1832
25dbc73a
AM		 1833static bfd_boolean
1834ppc_elf_set_private_flags (bfd *abfd, flagword flags)
1835{
1836 BFD_ASSERT (!elf_flags_init (abfd)
1837 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 1838
25dbc73a
AM		 1839 elf_elfheader (abfd)->e_flags = flags;
1840 elf_flags_init (abfd) = TRUE;
1841 return TRUE;
1842}
1843
25dbc73a 1844/* Support for core dump NOTE sections. */
deaaf2f3 1845
b34976b6 1846static bfd_boolean
25dbc73a 1847ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 1848{
25dbc73a
AM		 1849 int offset;
1850 unsigned int size;
252b5132 1851
25dbc73a
AM		 1852 switch (note->descsz)
1853 {
1854 default:
1855 return FALSE;
252b5132 1856
25dbc73a
AM		 1857 case 268: /* Linux/PPC. */
1858 /* pr_cursig */
1859 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 1860
25dbc73a 1861 /* pr_pid */
261b8d08 1862 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 1863
25dbc73a
AM		 1864 /* pr_reg */
1865 offset = 72;
1866 size = 192;
deaaf2f3 1867
25dbc73a
AM		 1868 break;
1869 }
deaaf2f3 1870
25dbc73a
AM		 1871 /* Make a ".reg/999" section. */
1872 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1873 size, note->descpos + offset);
1874}
252b5132 1875
25dbc73a
AM		 1876static bfd_boolean
1877ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1878{
1879 switch (note->descsz)
deaaf2f3 1880 {
25dbc73a
AM		 1881 default:
1882 return FALSE;
deaaf2f3 1883
25dbc73a 1884 case 128: /* Linux/PPC elf_prpsinfo. */
bc989cdc
JK		 1885 elf_tdata (abfd)->core_pid
1886 = bfd_get_32 (abfd, note->descdata + 16);
25dbc73a
AM		 1887 elf_tdata (abfd)->core_program
1888 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1889 elf_tdata (abfd)->core_command
1890 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1891 }
9abc968f 1892
25dbc73a
AM		 1893 /* Note that for some reason, a spurious space is tacked
1894 onto the end of the args in some (at least one anyway)
1895 implementations, so strip it off if it exists. */
70bccea4 1896
25dbc73a
AM		 1897 {
1898 char *command = elf_tdata (abfd)->core_command;
1899 int n = strlen (command);
70bccea4 1900
25dbc73a
AM		 1901 if (0 < n && command[n - 1] == ' ')
1902 command[n - 1] = '\0';
1903 }
deaaf2f3 1904
25dbc73a
AM		 1905 return TRUE;
1906}
deaaf2f3 1907
183e98be
AM		 1908static char *
1909ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
1910{
1911 switch (note_type)
1912 {
1913 default:
1914 return NULL;
1915
1916 case NT_PRPSINFO:
1917 {
1918 char data[128];
1919 va_list ap;
1920
1921 va_start (ap, note_type);
1922 memset (data, 0, 32);
1923 strncpy (data + 32, va_arg (ap, const char *), 16);
1924 strncpy (data + 48, va_arg (ap, const char *), 80);
1925 va_end (ap);
1926 return elfcore_write_note (abfd, buf, bufsiz,
1927 "CORE", note_type, data, sizeof (data));
1928 }
1929
1930 case NT_PRSTATUS:
1931 {
1932 char data[268];
1933 va_list ap;
1934 long pid;
1935 int cursig;
1936 const void *greg;
1937
1938 va_start (ap, note_type);
1939 memset (data, 0, 72);
1940 pid = va_arg (ap, long);
1941 bfd_put_32 (abfd, pid, data + 24);
1942 cursig = va_arg (ap, int);
1943 bfd_put_16 (abfd, cursig, data + 12);
1944 greg = va_arg (ap, const void *);
1945 memcpy (data + 72, greg, 192);
1946 memset (data + 264, 0, 4);
1947 va_end (ap);
1948 return elfcore_write_note (abfd, buf, bufsiz,
1949 "CORE", note_type, data, sizeof (data));
1950 }
1951 }
1952}
1953
25dbc73a
AM		 1954/* Return address for Ith PLT stub in section PLT, for relocation REL
1955 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 1956
25dbc73a
AM		 1957static bfd_vma
1958ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
1959 const asection *plt ATTRIBUTE_UNUSED,
1960 const arelent *rel)
1961{
1962 return rel->address;
1963}
deaaf2f3 1964
25dbc73a 1965/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L		 1966 is called when bfd_section_from_shdr finds a section with an unknown
1967 type. */
deaaf2f3 1968
25dbc73a 1969static bfd_boolean
6dc132d9
L		 1970ppc_elf_section_from_shdr (bfd *abfd,
1971 Elf_Internal_Shdr *hdr,
1972 const char *name,
1973 int shindex)
25dbc73a
AM		 1974{
1975 asection *newsect;
1976 flagword flags;
d1c6de6f 1977
6dc132d9 1978 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 1979 return FALSE;
deaaf2f3 1980
25dbc73a
AM		 1981 newsect = hdr->bfd_section;
1982 flags = bfd_get_section_flags (abfd, newsect);
1983 if (hdr->sh_flags & SHF_EXCLUDE)
1984 flags |= SEC_EXCLUDE;
9abc968f 1985
25dbc73a
AM		 1986 if (hdr->sh_type == SHT_ORDERED)
1987 flags |= SEC_SORT_ENTRIES;
d1c6de6f 1988
25dbc73a
AM		 1989 bfd_set_section_flags (abfd, newsect, flags);
1990 return TRUE;
1991}
1992
1993/* Set up any other section flags and such that may be necessary. */
1994
1995static bfd_boolean
1996ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1997 Elf_Internal_Shdr *shdr,
1998 asection *asect)
1999{
25dbc73a
AM		 2000 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2001 shdr->sh_type = SHT_ORDERED;
2002
2003 return TRUE;
2004}
2005
2006/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2007 need to bump up the number of section headers. */
2008
2009static int
a6b96beb
AM		 2010ppc_elf_additional_program_headers (bfd *abfd,
2011 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM		 2012{
2013 asection *s;
2014 int ret = 0;
d1c6de6f 2015
25dbc73a
AM		 2016 s = bfd_get_section_by_name (abfd, ".sbss2");
2017 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2018 ++ret;
d1c6de6f 2019
25dbc73a
AM		 2020 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2021 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2022 ++ret;
deaaf2f3 2023
25dbc73a
AM		 2024 return ret;
2025}
deaaf2f3 2026
25dbc73a
AM		 2027/* Add extra PPC sections -- Note, for now, make .sbss2 and
2028 .PPC.EMB.sbss0 a normal section, and not a bss section so
2029 that the linker doesn't crater when trying to make more than
2030 2 sections. */
e656e369 2031
b35d266b 2032static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2033{
0112cd26
NC		 2034 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2035 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2036 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2037 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2038 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2039 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2040 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2041 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2042 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2043 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 2044};
2045
551b43fd
AM		 2046/* This is what we want for new plt/got. */
2047static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2048 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM		 2049
2050static const struct bfd_elf_special_section *
2051ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 2052{
b35d266b 2053 const struct bfd_elf_special_section *ssect;
551b43fd
AM		 2054
2055 /* See if this is one of the special sections. */
2056 if (sec->name == NULL)
2057 return NULL;
2058
2059 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2060 sec->use_rela_p);
2061 if (ssect != NULL)
2062 {
2063 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2064 ssect = &ppc_alt_plt;
2065 return ssect;
2066 }
2067
2068 return _bfd_elf_get_sec_type_attr (abfd, sec);
2069}
25dbc73a
AM		 2070\f
2071/* Very simple linked list structure for recording apuinfo values. */
2072typedef struct apuinfo_list
2073{
2074 struct apuinfo_list *next;
2075 unsigned long value;
2076}
2077apuinfo_list;
e656e369 2078
25dbc73a 2079static apuinfo_list *head;
f2faa800 2080static bfd_boolean apuinfo_set;
deaaf2f3 2081
25dbc73a
AM		 2082static void
2083apuinfo_list_init (void)
2084{
2085 head = NULL;
f2faa800 2086 apuinfo_set = FALSE;
25dbc73a 2087}
9abc968f 2088
25dbc73a
AM		 2089static void
2090apuinfo_list_add (unsigned long value)
2091{
2092 apuinfo_list *entry = head;
deaaf2f3 2093
25dbc73a
AM		 2094 while (entry != NULL)
2095 {
2096 if (entry->value == value)
2097 return;
2098 entry = entry->next;
2099 }
b4a38de6 2100
25dbc73a
AM		 2101 entry = bfd_malloc (sizeof (* entry));
2102 if (entry == NULL)
2103 return;
e656e369 2104
25dbc73a
AM		 2105 entry->value = value;
2106 entry->next = head;
2107 head = entry;
2108}
9abc968f 2109
25dbc73a
AM		 2110static unsigned
2111apuinfo_list_length (void)
2112{
2113 apuinfo_list *entry;
2114 unsigned long count;
9abc968f 2115
25dbc73a
AM		 2116 for (entry = head, count = 0;
2117 entry;
2118 entry = entry->next)
2119 ++ count;
e656e369 2120
25dbc73a
AM		 2121 return count;
2122}
eea6121a 2123
25dbc73a
AM		 2124static inline unsigned long
2125apuinfo_list_element (unsigned long number)
2126{
2127 apuinfo_list * entry;
e656e369 2128
25dbc73a
AM		 2129 for (entry = head;
2130 entry && number --;
2131 entry = entry->next)
2132 ;
252b5132 2133
25dbc73a
AM		 2134 return entry ? entry->value : 0;
2135}
2136
2137static void
2138apuinfo_list_finish (void)
2139{
2140 apuinfo_list *entry;
2141
2142 for (entry = head; entry;)
252b5132 2143 {
25dbc73a
AM		 2144 apuinfo_list *next = entry->next;
2145 free (entry);
2146 entry = next;
2147 }
9abc968f 2148
25dbc73a
AM		 2149 head = NULL;
2150}
9abc968f 2151
25dbc73a
AM		 2152#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2153#define APUINFO_LABEL "APUinfo"
9abc968f 2154
25dbc73a
AM		 2155/* Scan the input BFDs and create a linked list of
2156 the APUinfo values that will need to be emitted. */
9abc968f 2157
25dbc73a
AM		 2158static void
2159ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2160{
2161 bfd *ibfd;
2162 asection *asec;
deddc40b
NS		 2163 char *buffer = NULL;
2164 bfd_size_type largest_input_size = 0;
25dbc73a 2165 unsigned i;
25dbc73a
AM		 2166 unsigned long length;
2167 const char *error_message = NULL;
9abc968f 2168
25dbc73a
AM		 2169 if (link_info == NULL)
2170 return;
9abc968f 2171
25dbc73a 2172 apuinfo_list_init ();
252b5132 2173
25dbc73a
AM		 2174 /* Read in the input sections contents. */
2175 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2176 {
25dbc73a 2177 unsigned long datum;
252b5132 2178
25dbc73a
AM		 2179 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2180 if (asec == NULL)
2181 continue;
252b5132 2182
deddc40b 2183 error_message = _("corrupt %s section in %B");
25dbc73a 2184 length = asec->size;
deddc40b
NS		 2185 if (length < 20)
2186 goto fail;
2187
f2faa800 2188 apuinfo_set = TRUE;
deddc40b 2189 if (largest_input_size < asec->size)
25dbc73a 2190 {
deddc40b
NS		 2191 if (buffer)
2192 free (buffer);
2193 largest_input_size = asec->size;
2194 buffer = bfd_malloc (largest_input_size);
2195 if (!buffer)
2196 return;
25dbc73a 2197 }
5b914448 2198
25dbc73a 2199 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2200 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a
AM		 2201 {
2202 error_message = _("unable to read in %s section from %B");
2203 goto fail;
2204 }
252b5132 2205
25dbc73a
AM		 2206 /* Verify the contents of the header. Note - we have to
2207 extract the values this way in order to allow for a
2208 host whose endian-ness is different from the target. */
deddc40b 2209 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM		 2210 if (datum != sizeof APUINFO_LABEL)
2211 goto fail;
252b5132 2212
deddc40b 2213 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM		 2214 if (datum != 0x2)
2215 goto fail;
252b5132 2216
deddc40b 2217 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2218 goto fail;
252b5132 2219
25dbc73a 2220 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2221 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM		 2222 if (datum + 20 != length)
2223 goto fail;
2224
25dbc73a
AM		 2225 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2226 for (i = 0; i < datum; i += 4)
deddc40b 2227 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH		 2228 }
2229
25dbc73a 2230 error_message = NULL;
252b5132 2231
f2faa800 2232 if (apuinfo_set)
deddc40b 2233 {
f2faa800
NS		 2234 /* Compute the size of the output section. */
2235 unsigned num_entries = apuinfo_list_length ();
5b914448 2236
deddc40b
NS		 2237 /* Set the output section size, if it exists. */
2238 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2239
deddc40b
NS		 2240 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2241 {
2242 ibfd = abfd;
2243 error_message = _("warning: unable to set size of %s section in %B");
2244 }
2245 }
25dbc73a
AM		 2246
2247 fail:
deddc40b
NS		 2248 if (buffer)
2249 free (buffer);
25dbc73a
AM		 2250
2251 if (error_message)
2252 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2253}
252b5132 2254
25dbc73a
AM		 2255/* Prevent the output section from accumulating the input sections'
2256 contents. We have already stored this in our linked list structure. */
252b5132 2257
25dbc73a
AM		 2258static bfd_boolean
2259ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2260 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM		 2261 asection *asec,
2262 bfd_byte *contents ATTRIBUTE_UNUSED)
2263{
f2faa800 2264 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH		 2265}
2266
25dbc73a
AM		 2267/* Finally we can generate the output section. */
2268
2269static void
2270ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2271{
25dbc73a
AM		 2272 bfd_byte *buffer;
2273 asection *asec;
2274 unsigned i;
2275 unsigned num_entries;
2276 bfd_size_type length;
7619e7c7 2277
25dbc73a
AM		 2278 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2279 if (asec == NULL)
2280 return;
2281
f2faa800 2282 if (!apuinfo_set)
25dbc73a
AM		 2283 return;
2284
2285 length = asec->size;
2286 if (length < 20)
2287 return;
2288
2289 buffer = bfd_malloc (length);
2290 if (buffer == NULL)
7619e7c7 2291 {
25dbc73a
AM		 2292 (*_bfd_error_handler)
2293 (_("failed to allocate space for new APUinfo section."));
2294 return;
7619e7c7 2295 }
7619e7c7 2296
25dbc73a
AM		 2297 /* Create the apuinfo header. */
2298 num_entries = apuinfo_list_length ();
2299 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2300 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2301 bfd_put_32 (abfd, 0x2, buffer + 8);
2302 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2303
25dbc73a
AM		 2304 length = 20;
2305 for (i = 0; i < num_entries; i++)
feee612b 2306 {
25dbc73a
AM		 2307 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2308 length += 4;
feee612b 2309 }
feee612b 2310
25dbc73a
AM		 2311 if (length != asec->size)
2312 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2313
25dbc73a
AM		 2314 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2315 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2316
25dbc73a
AM		 2317 free (buffer);
2318
2319 apuinfo_list_finish ();
252b5132 2320}
25dbc73a 2321\f
7382d32a 2322static bfd_boolean
c6dd29ce 2323is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2324{
c6dd29ce 2325 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2326
c6dd29ce 2327 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM		 2328 return FALSE;
2329
c6dd29ce
AM		 2330 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2331 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2332 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2333 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM		 2334}
2335
468392fb
AM		 2336static bfd_boolean
2337section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2338{
2339 bfd_vma vma = *(bfd_vma *) ptr;
2340 return ((section->flags & SEC_ALLOC) != 0
2341 && section->vma <= vma
2342 && vma < section->vma + section->size);
2343}
2344
2345static long
2346ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2347 long dynsymcount, asymbol **dynsyms,
2348 asymbol **ret)
2349{
2350 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2351 asection *plt, *relplt, *dynamic, *glink;
2352 bfd_vma glink_vma = 0;
2353 bfd_vma resolv_vma = 0;
2354 bfd_vma stub_vma;
2355 asymbol *s;
2356 arelent *p;
2357 long count, i;
2358 size_t size;
2359 char *names;
2360 bfd_byte buf[4];
2361
2362 *ret = NULL;
2363
2364 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2365 return 0;
2366
2367 if (dynsymcount <= 0)
2368 return 0;
2369
2370 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2371 if (relplt == NULL)
2372 return 0;
2373
2374 plt = bfd_get_section_by_name (abfd, ".plt");
2375 if (plt == NULL)
2376 return 0;
2377
2378 /* Call common code to handle old-style executable PLTs. */
2379 if (elf_section_flags (plt) & SHF_EXECINSTR)
2380 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2381 dynsymcount, dynsyms, ret);
2382
2383 /* If this object was prelinked, the prelinker stored the address
2384 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2385 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2386 if (dynamic != NULL)
2387 {
2388 bfd_byte *dynbuf, *extdyn, *extdynend;
2389 size_t extdynsize;
2390 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2391
2392 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2393 return -1;
2394
2395 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2396 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2397
2398 extdyn = dynbuf;
2399 extdynend = extdyn + dynamic->size;
2400 for (; extdyn < extdynend; extdyn += extdynsize)
2401 {
2402 Elf_Internal_Dyn dyn;
2403 (*swap_dyn_in) (abfd, extdyn, &dyn);
2404
2405 if (dyn.d_tag == DT_NULL)
2406 break;
2407
2408 if (dyn.d_tag == DT_PPC_GOT)
2409 {
2410 unsigned int g_o_t = dyn.d_un.d_val;
2411 asection *got = bfd_get_section_by_name (abfd, ".got");
2412 if (got != NULL
2413 && bfd_get_section_contents (abfd, got, buf,
2414 g_o_t - got->vma + 4, 4))
2415 glink_vma = bfd_get_32 (abfd, buf);
2416 break;
2417 }
2418 }
2419 free (dynbuf);
2420 }
2421
2422 /* Otherwise we read the first plt entry. */
2423 if (glink_vma == 0)
2424 {
2425 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2426 glink_vma = bfd_get_32 (abfd, buf);
2427 }
2428
2429 if (glink_vma == 0)
2430 return 0;
2431
2432 /* The .glink section usually does not survive the final
2433 link; search for the section (usually .text) where the
2434 glink stubs now reside. */
2435 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2436 if (glink == NULL)
2437 return 0;
2438
2439 /* Determine glink PLT resolver by reading the relative branch
2440 from the first glink stub. */
2441 if (bfd_get_section_contents (abfd, glink, buf,
2442 glink_vma - glink->vma, 4))
2443 {
2444 unsigned int insn = bfd_get_32 (abfd, buf);
2445
2446 /* The first glink stub may either branch to the resolver ... */
2447 insn ^= B;
2448 if ((insn & ~0x3fffffc) == 0)
2449 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2450
2451 /* ... or fall through a bunch of NOPs. */
2452 else if ((insn ^ B ^ NOP) == 0)
2453 for (i = 4;
2454 bfd_get_section_contents (abfd, glink, buf,
2455 glink_vma - glink->vma + i, 4);
2456 i += 4)
2457 if (bfd_get_32 (abfd, buf) != NOP)
2458 {
2459 resolv_vma = glink_vma + i;
2460 break;
2461 }
2462 }
2463
7382d32a
AM		 2464 count = relplt->size / sizeof (Elf32_External_Rela);
2465 stub_vma = glink_vma - (bfd_vma) count * 16;
2466 /* If the stubs are those for -shared/-pie then we might have
2467 multiple stubs for each plt entry. If that is the case then
2468 there is no way to associate stubs with their plt entries short
2469 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM		 2470 if (!is_nonpic_glink_stub (abfd, glink,
2471 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM		 2472 return 0;
2473
468392fb
AM		 2474 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2475 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2476 return -1;
2477
468392fb
AM		 2478 size = count * sizeof (asymbol);
2479 p = relplt->relocation;
2480 for (i = 0; i < count; i++, p++)
e054468f
AM		 2481 {
2482 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2483 if (p->addend != 0)
2484 size += sizeof ("+0x") - 1 + 8;
2485 }
468392fb
AM		 2486
2487 size += sizeof (asymbol) + sizeof ("__glink");
2488
2489 if (resolv_vma)
2490 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2491
2492 s = *ret = bfd_malloc (size);
2493 if (s == NULL)
2494 return -1;
2495
2496 names = (char *) (s + count + 1 + (resolv_vma != 0));
2497 p = relplt->relocation;
2498 for (i = 0; i < count; i++, p++)
2499 {
2500 size_t len;
2501
2502 *s = **p->sym_ptr_ptr;
2503 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2504 we are defining a symbol, ensure one of them is set. */
2505 if ((s->flags & BSF_LOCAL) == 0)
2506 s->flags |= BSF_GLOBAL;
6ba2a415 2507 s->flags |= BSF_SYNTHETIC;
468392fb
AM		 2508 s->section = glink;
2509 s->value = stub_vma - glink->vma;
2510 s->name = names;
2511 s->udata.p = NULL;
2512 len = strlen ((*p->sym_ptr_ptr)->name);
2513 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2514 names += len;
e054468f
AM		 2515 if (p->addend != 0)
2516 {
2517 memcpy (names, "+0x", sizeof ("+0x") - 1);
2518 names += sizeof ("+0x") - 1;
2519 bfd_sprintf_vma (abfd, names, p->addend);
2520 names += strlen (names);
2521 }
468392fb
AM		 2522 memcpy (names, "@plt", sizeof ("@plt"));
2523 names += sizeof ("@plt");
2524 ++s;
2525 stub_vma += 16;
2526 }
2527
2528 /* Add a symbol at the start of the glink branch table. */
86a4952b 2529 memset (s, 0, sizeof *s);
468392fb 2530 s->the_bfd = abfd;
6ba2a415 2531 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 2532 s->section = glink;
2533 s->value = glink_vma - glink->vma;
2534 s->name = names;
2535 memcpy (names, "__glink", sizeof ("__glink"));
2536 names += sizeof ("__glink");
2537 s++;
2538 count++;
2539
2540 if (resolv_vma)
2541 {
2542 /* Add a symbol for the glink PLT resolver. */
86a4952b 2543 memset (s, 0, sizeof *s);
468392fb 2544 s->the_bfd = abfd;
6ba2a415 2545 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 2546 s->section = glink;
2547 s->value = resolv_vma - glink->vma;
2548 s->name = names;
2549 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
2550 names += sizeof ("__glink_PLTresolve");
2551 s++;
2552 count++;
2553 }
2554
2555 return count;
2556}
2557\f
25dbc73a
AM		 2558/* The following functions are specific to the ELF linker, while
2559 functions above are used generally. They appear in this file more
2560 or less in the order in which they are called. eg.
2561 ppc_elf_check_relocs is called early in the link process,
2562 ppc_elf_finish_dynamic_sections is one of the last functions
2563 called. */
252b5132 2564
a6aa5195 2565/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 2566 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM		 2567struct plt_entry
2568{
2569 struct plt_entry *next;
2570
2571 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
2572 This field stores the offset into .got2 used to initialise the
a877a2b6
AM		 2573 GOT pointer reg. It will always be at least 32768. (Current
2574 gcc always uses an offset of 32768, but ld -r will pack .got2
2575 sections together resulting in larger offsets). */
a6aa5195
AM		 2576 bfd_vma addend;
2577
2578 /* The .got2 section. */
2579 asection *sec;
2580
2581 /* PLT refcount or offset. */
2582 union
2583 {
2584 bfd_signed_vma refcount;
2585 bfd_vma offset;
2586 } plt;
2587
2588 /* .glink stub offset. */
2589 bfd_vma glink_offset;
2590};
2591
1d483afe 2592/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM		 2593 selects those that must be copied when linking a shared library,
2594 even when the symbol is local. */
252b5132 2595
1d483afe
AM		 2596static int
2597must_be_dyn_reloc (struct bfd_link_info *info,
2598 enum elf_ppc_reloc_type r_type)
2599{
2600 switch (r_type)
2601 {
2602 default:
2603 return 1;
2604
2605 case R_PPC_REL24:
2606 case R_PPC_REL14:
2607 case R_PPC_REL14_BRTAKEN:
2608 case R_PPC_REL14_BRNTAKEN:
2609 case R_PPC_REL32:
2610 return 0;
2611
2612 case R_PPC_TPREL32:
2613 case R_PPC_TPREL16:
2614 case R_PPC_TPREL16_LO:
2615 case R_PPC_TPREL16_HI:
2616 case R_PPC_TPREL16_HA:
2617 return !info->executable;
2618 }
2619}
252b5132 2620
25dbc73a
AM		 2621/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2622 copying dynamic variables from a shared lib into an app's dynbss
2623 section, and instead use a dynamic relocation to point into the
2624 shared lib. */
2625#define ELIMINATE_COPY_RELOCS 1
252b5132 2626
25dbc73a 2627/* PPC ELF linker hash entry. */
252b5132 2628
25dbc73a
AM		 2629struct ppc_elf_link_hash_entry
2630{
2631 struct elf_link_hash_entry elf;
252b5132 2632
25dbc73a
AM		 2633 /* If this symbol is used in the linker created sections, the processor
2634 specific backend uses this field to map the field into the offset
2635 from the beginning of the section. */
2636 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 2637
25dbc73a 2638 /* Track dynamic relocs copied for this symbol. */
6061a67d 2639 struct elf_dyn_relocs *dyn_relocs;
252b5132 2640
25dbc73a
AM		 2641 /* Contexts in which symbol is used in the GOT (or TOC).
2642 TLS_GD .. TLS_TLS bits are or'd into the mask as the
2643 corresponding relocs are encountered during check_relocs.
2644 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2645 indicate the corresponding GOT entry type is not needed. */
2646#define TLS_GD 1 /* GD reloc. */
2647#define TLS_LD 2 /* LD reloc. */
2648#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2649#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2650#define TLS_TLS 16 /* Any TLS reloc. */
2651#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 2652#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 2653 char tls_mask;
4dc4a9a5
DJ		 2654
2655 /* Nonzero if we have seen a small data relocation referring to this
2656 symbol. */
2657 unsigned char has_sda_refs;
25dbc73a 2658};
252b5132 2659
25dbc73a
AM		 2660#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
2661
2662/* PPC ELF linker hash table. */
2663
2664struct ppc_elf_link_hash_table
2665{
2666 struct elf_link_hash_table elf;
2667
2668 /* Short-cuts to get to dynamic linker sections. */
2669 asection *got;
2670 asection *relgot;
d7128ce4 2671 asection *glink;
25dbc73a
AM		 2672 asection *plt;
2673 asection *relplt;
e054468f
AM		 2674 asection *iplt;
2675 asection *reliplt;
25dbc73a
AM		 2676 asection *dynbss;
2677 asection *relbss;
2678 asection *dynsbss;
2679 asection *relsbss;
c9a2f333 2680 elf_linker_section_t sdata[2];
25dbc73a
AM		 2681 asection *sbss;
2682
016687f8
AM		 2683 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
2684 asection *srelplt2;
2685
2686 /* The .got.plt section (VxWorks only)*/
2687 asection *sgotplt;
2688
1d483afe 2689 /* Shortcut to __tls_get_addr. */
25dbc73a 2690 struct elf_link_hash_entry *tls_get_addr;
252b5132 2691
016687f8
AM		 2692 /* The bfd that forced an old-style PLT. */
2693 bfd *old_bfd;
5b914448 2694
25dbc73a
AM		 2695 /* TLS local dynamic got entry handling. */
2696 union {
2697 bfd_signed_vma refcount;
2698 bfd_vma offset;
2699 } tlsld_got;
252b5132 2700
c6dd29ce 2701 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM		 2702 bfd_vma glink_pltresolve;
2703
3b36f7e6
AM		 2704 /* Size of reserved GOT entries. */
2705 unsigned int got_header_size;
2706 /* Non-zero if allocating the header left a gap. */
2707 unsigned int got_gap;
2708
4a3dc543
RS		 2709 /* The type of PLT we have chosen to use. */
2710 enum ppc_elf_plt_type plt_type;
2711
0ba07910
AM		 2712 /* Set if we should emit symbols for stubs. */
2713 unsigned int emit_stub_syms:1;
2714
a7f2871e
AM		 2715 /* Set if __tls_get_addr optimization should not be done. */
2716 unsigned int no_tls_get_addr_opt:1;
2717
9d8504b1 2718 /* True if the target system is VxWorks. */
016687f8 2719 unsigned int is_vxworks:1;
9d8504b1
PB		 2720
2721 /* The size of PLT entries. */
2722 int plt_entry_size;
2723 /* The distance between adjacent PLT slots. */
2724 int plt_slot_size;
2725 /* The size of the first PLT entry. */
2726 int plt_initial_entry_size;
016687f8 2727
87d72d41
AM		 2728 /* Small local sym cache. */
2729 struct sym_cache sym_cache;
25dbc73a 2730};
252b5132 2731
b0dddeec
AM		 2732/* Rename some of the generic section flags to better document how they
2733 are used here. */
2734
2735/* Nonzero if this section has TLS related relocations. */
2736#define has_tls_reloc sec_flg0
2737
2738/* Nonzero if this section has a call to __tls_get_addr. */
2739#define has_tls_get_addr_call sec_flg1
2740
25dbc73a 2741/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 2742
25dbc73a 2743#define ppc_elf_hash_table(p) \
4dfe6ac6
NC		 2744 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2745 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 2746
25dbc73a 2747/* Create an entry in a PPC ELF linker hash table. */
252b5132 2748
25dbc73a
AM		 2749static struct bfd_hash_entry *
2750ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2751 struct bfd_hash_table *table,
2752 const char *string)
252b5132 2753{
25dbc73a
AM		 2754 /* Allocate the structure if it has not already been allocated by a
2755 subclass. */
2756 if (entry == NULL)
2757 {
2758 entry = bfd_hash_allocate (table,
2759 sizeof (struct ppc_elf_link_hash_entry));
2760 if (entry == NULL)
2761 return entry;
2762 }
252b5132 2763
25dbc73a
AM		 2764 /* Call the allocation method of the superclass. */
2765 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2766 if (entry != NULL)
2767 {
2768 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
2769 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
2770 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 2771 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 2772 }
252b5132 2773
25dbc73a 2774 return entry;
252b5132 2775}
3dab13f6 2776
25dbc73a 2777/* Create a PPC ELF linker hash table. */
3dab13f6 2778
25dbc73a
AM		 2779static struct bfd_link_hash_table *
2780ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 2781{
25dbc73a 2782 struct ppc_elf_link_hash_table *ret;
3dab13f6 2783
25dbc73a
AM		 2784 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
2785 if (ret == NULL)
2786 return NULL;
3dab13f6 2787
66eb6687
AM		 2788 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
2789 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC		 2790 sizeof (struct ppc_elf_link_hash_entry),
2791 PPC32_ELF_DATA))
3dab13f6 2792 {
25dbc73a
AM		 2793 free (ret);
2794 return NULL;
2795 }
58111eb7 2796
a6aa5195
AM		 2797 ret->elf.init_plt_refcount.refcount = 0;
2798 ret->elf.init_plt_refcount.glist = NULL;
2799 ret->elf.init_plt_offset.offset = 0;
2800 ret->elf.init_plt_offset.glist = NULL;
2801
c9a2f333
AM		 2802 ret->sdata[0].name = ".sdata";
2803 ret->sdata[0].sym_name = "_SDA_BASE_";
2804 ret->sdata[0].bss_name = ".sbss";
2805
2806 ret->sdata[1].name = ".sdata2";
2807 ret->sdata[1].sym_name = "_SDA2_BASE_";
2808 ret->sdata[1].bss_name = ".sbss2";
2809
9d8504b1
PB		 2810 ret->plt_entry_size = 12;
2811 ret->plt_slot_size = 8;
2812 ret->plt_initial_entry_size = 72;
9d8504b1 2813
25dbc73a
AM		 2814 return &ret->elf.root;
2815}
3dab13f6 2816
9d8504b1 2817/* Create .got and the related sections. */
3dab13f6 2818
25dbc73a
AM		 2819static bfd_boolean
2820ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2821{
2822 struct ppc_elf_link_hash_table *htab;
2823 asection *s;
2824 flagword flags;
3dab13f6 2825
25dbc73a
AM		 2826 if (!_bfd_elf_create_got_section (abfd, info))
2827 return FALSE;
3dab13f6 2828
25dbc73a
AM		 2829 htab = ppc_elf_hash_table (info);
2830 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2831 if (s == NULL)
2832 abort ();
3dab13f6 2833
9d8504b1
PB		 2834 if (htab->is_vxworks)
2835 {
2836 htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt");
2837 if (!htab->sgotplt)
2838 abort ();
2839 }
2840 else
2841 {
2842 /* The powerpc .got has a blrl instruction in it. Mark it
2843 executable. */
2844 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
2845 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2846 if (!bfd_set_section_flags (abfd, s, flags))
2847 return FALSE;
2848 }
3dab13f6 2849
64e77c6d
L		 2850 htab->relgot = bfd_get_section_by_name (abfd, ".rela.got");
2851 if (!htab->relgot)
2852 abort ();
3dab13f6 2853
25dbc73a
AM		 2854 return TRUE;
2855}
3dab13f6 2856
e054468f
AM		 2857static bfd_boolean
2858ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
2859{
2860 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
2861 asection *s;
2862 flagword flags;
2863
2864 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
2865 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2866 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
2867 htab->glink = s;
2868 if (s == NULL
2869 || !bfd_set_section_alignment (abfd, s, 4))
2870 return FALSE;
2871
2872 flags = SEC_ALLOC | SEC_LINKER_CREATED;
2873 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
2874 htab->iplt = s;
2875 if (s == NULL
2876 || !bfd_set_section_alignment (abfd, s, 4))
2877 return FALSE;
2878
2879 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2880 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2881 s = bfd_make_section_with_flags (abfd, ".rela.iplt", flags);
2882 htab->reliplt = s;
2883 if (s == NULL
2884 || ! bfd_set_section_alignment (abfd, s, 2))
2885 return FALSE;
2886 return TRUE;
2887}
2888
25dbc73a
AM		 2889/* We have to create .dynsbss and .rela.sbss here so that they get mapped
2890 to output sections (just like _bfd_elf_create_dynamic_sections has
2891 to create .dynbss and .rela.bss). */
3dab13f6 2892
25dbc73a
AM		 2893static bfd_boolean
2894ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2895{
2896 struct ppc_elf_link_hash_table *htab;
2897 asection *s;
2898 flagword flags;
3dab13f6 2899
25dbc73a 2900 htab = ppc_elf_hash_table (info);
3dab13f6 2901
25dbc73a
AM		 2902 if (htab->got == NULL
2903 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM		 2904 return FALSE;
2905
25dbc73a
AM		 2906 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2907 return FALSE;
3dab13f6 2908
e054468f
AM		 2909 if (htab->glink == NULL
2910 && !ppc_elf_create_glink (abfd, info))
d7128ce4 2911 return FALSE;
3dab13f6 2912
25dbc73a 2913 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
3b36f7e6
AM		 2914 s = bfd_make_section_with_flags (abfd, ".dynsbss",
2915 SEC_ALLOC | SEC_LINKER_CREATED);
2916 htab->dynsbss = s;
3496cb2a 2917 if (s == NULL)
25dbc73a 2918 return FALSE;
3dab13f6 2919
25dbc73a
AM		 2920 if (! info->shared)
2921 {
2922 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
e054468f
AM		 2923 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
2924 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
d7128ce4 2925 s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 2926 htab->relsbss = s;
25dbc73a 2927 if (s == NULL
25dbc73a
AM		 2928 || ! bfd_set_section_alignment (abfd, s, 2))
2929 return FALSE;
2930 }
3dab13f6 2931
711de32c
RS		 2932 if (htab->is_vxworks
2933 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2934 return FALSE;
9d8504b1 2935
25dbc73a
AM		 2936 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2937 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2938 if (s == NULL)
2939 abort ();
3dab13f6 2940
3b36f7e6 2941 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS		 2942 if (htab->plt_type == PLT_VXWORKS)
2943 /* The VxWorks PLT is a loaded section with contents. */
2944 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM		 2945 return bfd_set_section_flags (abfd, s, flags);
2946}
3dab13f6 2947
25dbc73a 2948/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 2949
25dbc73a 2950static void
fcfa13d2 2951ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM		 2952 struct elf_link_hash_entry *dir,
2953 struct elf_link_hash_entry *ind)
2954{
2955 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 2956
25dbc73a
AM		 2957 edir = (struct ppc_elf_link_hash_entry *) dir;
2958 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 2959
25dbc73a
AM		 2960 if (eind->dyn_relocs != NULL)
2961 {
2962 if (edir->dyn_relocs != NULL)
3dab13f6 2963 {
6061a67d
AM		 2964 struct elf_dyn_relocs **pp;
2965 struct elf_dyn_relocs *p;
3dab13f6 2966
fcfa13d2 2967 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM		 2968 list. Merge any entries against the same section. */
2969 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 2970 {
6061a67d 2971 struct elf_dyn_relocs *q;
25dbc73a
AM		 2972
2973 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2974 if (q->sec == p->sec)
2975 {
2976 q->pc_count += p->pc_count;
2977 q->count += p->count;
2978 *pp = p->next;
2979 break;
2980 }
2981 if (q == NULL)
2982 pp = &p->next;
3dab13f6 2983 }
25dbc73a 2984 *pp = edir->dyn_relocs;
3dab13f6 2985 }
25dbc73a
AM		 2986
2987 edir->dyn_relocs = eind->dyn_relocs;
2988 eind->dyn_relocs = NULL;
3dab13f6 2989 }
3dab13f6 2990
25dbc73a 2991 edir->tls_mask |= eind->tls_mask;
4dc4a9a5 2992 edir->has_sda_refs |= eind->has_sda_refs;
3dab13f6 2993
a6aa5195
AM		 2994 /* If called to transfer flags for a weakdef during processing
2995 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
2996 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
2997 if (!(ELIMINATE_COPY_RELOCS
2998 && eind->elf.root.type != bfd_link_hash_indirect
2999 && edir->elf.dynamic_adjusted))
3000 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3001
3002 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3003 edir->elf.ref_regular |= eind->elf.ref_regular;
3004 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3005 edir->elf.needs_plt |= eind->elf.needs_plt;
0eb4a168 3006 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
a6aa5195
AM		 3007
3008 /* If we were called to copy over info for a weak sym, that's all. */
3009 if (eind->elf.root.type != bfd_link_hash_indirect)
3010 return;
3011
3012 /* Copy over the GOT refcount entries that we may have already seen to
3013 the symbol which just became indirect. */
fcfa13d2
AM		 3014 edir->elf.got.refcount += eind->elf.got.refcount;
3015 eind->elf.got.refcount = 0;
a6aa5195
AM		 3016
3017 /* And plt entries. */
3018 if (eind->elf.plt.plist != NULL)
3019 {
3020 if (edir->elf.plt.plist != NULL)
3021 {
3022 struct plt_entry **entp;
3023 struct plt_entry *ent;
3024
3025 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3026 {
3027 struct plt_entry *dent;
3028
3029 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3030 if (dent->sec == ent->sec && dent->addend == ent->addend)
3031 {
3032 dent->plt.refcount += ent->plt.refcount;
3033 *entp = ent->next;
3034 break;
3035 }
3036 if (dent == NULL)
3037 entp = &ent->next;
3038 }
3039 *entp = edir->elf.plt.plist;
3040 }
3041
3042 edir->elf.plt.plist = eind->elf.plt.plist;
3043 eind->elf.plt.plist = NULL;
3044 }
3045
fcfa13d2 3046 if (eind->elf.dynindx != -1)
25dbc73a 3047 {
fcfa13d2
AM		 3048 if (edir->elf.dynindx != -1)
3049 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3050 edir->elf.dynstr_index);
a6aa5195
AM		 3051 edir->elf.dynindx = eind->elf.dynindx;
3052 edir->elf.dynstr_index = eind->elf.dynstr_index;
3053 eind->elf.dynindx = -1;
3054 eind->elf.dynstr_index = 0;
25dbc73a 3055 }
25dbc73a 3056}
3dab13f6 3057
25dbc73a
AM		 3058/* Hook called by the linker routine which adds symbols from an object
3059 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3060
25dbc73a
AM		 3061static bfd_boolean
3062ppc_elf_add_symbol_hook (bfd *abfd,
3063 struct bfd_link_info *info,
3064 Elf_Internal_Sym *sym,
3065 const char **namep ATTRIBUTE_UNUSED,
3066 flagword *flagsp ATTRIBUTE_UNUSED,
3067 asection **secp,
3068 bfd_vma *valp)
3069{
3070 if (sym->st_shndx == SHN_COMMON
3071 && !info->relocatable
0c8d6e5c
AM		 3072 && is_ppc_elf (info->output_bfd)
3073 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM		 3074 {
3075 /* Common symbols less than or equal to -G nn bytes are automatically
3076 put into .sbss. */
3077 struct ppc_elf_link_hash_table *htab;
3dab13f6 3078
25dbc73a
AM		 3079 htab = ppc_elf_hash_table (info);
3080 if (htab->sbss == NULL)
3081 {
644285ef 3082 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3083
644285ef
AM		 3084 if (!htab->elf.dynobj)
3085 htab->elf.dynobj = abfd;
3086
3496cb2a
L		 3087 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3088 ".sbss",
3089 flags);
3090 if (htab->sbss == NULL)
25dbc73a 3091 return FALSE;
3dab13f6 3092 }
3dab13f6 3093
25dbc73a
AM		 3094 *secp = htab->sbss;
3095 *valp = sym->st_size;
3096 }
3dab13f6 3097
c16153ae 3098 if ((abfd->flags & DYNAMIC) == 0
f64b2e8d
NC		 3099 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3100 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3101 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
e054468f 3102
25dbc73a 3103 return TRUE;
3dab13f6
AM		 3104}
3105\f
046183de 3106static bfd_boolean
bd6c6e2b 3107create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
046183de 3108{
bd6c6e2b
AM		 3109 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3110
046183de
AM		 3111 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3112 TRUE, FALSE, TRUE);
3113 if (lsect->sym == NULL)
3114 return FALSE;
3115 if (lsect->sym->root.type == bfd_link_hash_new)
3116 lsect->sym->non_elf = 0;
3117 lsect->sym->ref_regular = 1;
bd6c6e2b 3118 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
046183de
AM		 3119 return TRUE;
3120}
3121
c9a2f333 3122/* Create a special linker section. */
25dbc73a 3123
c9a2f333 3124static bfd_boolean
55fd94b0
AM		 3125ppc_elf_create_linker_section (bfd *abfd,
3126 struct bfd_link_info *info,
c9a2f333
AM		 3127 flagword flags,
3128 elf_linker_section_t *lsect)
252b5132 3129{
58111eb7 3130 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 3131 asection *s;
58111eb7 3132
c9a2f333
AM		 3133 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3134 | SEC_LINKER_CREATED);
58111eb7
AM		 3135
3136 /* Record the first bfd that needs the special sections. */
3137 if (!htab->elf.dynobj)
3138 htab->elf.dynobj = abfd;
3139
3496cb2a
L		 3140 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3141 lsect->name,
3142 flags);
76750a2f 3143 if (s == NULL
76750a2f 3144 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 3145 return FALSE;
76750a2f 3146 lsect->section = s;
58111eb7 3147
bd6c6e2b 3148 return create_sdata_sym (info, lsect);
252b5132 3149}
252b5132 3150
25dbc73a
AM		 3151/* Find a linker generated pointer with a given addend and type. */
3152
3153static elf_linker_section_pointers_t *
3154elf_find_pointer_linker_section
3155 (elf_linker_section_pointers_t *linker_pointers,
3156 bfd_vma addend,
3157 elf_linker_section_t *lsect)
252b5132 3158{
25dbc73a
AM		 3159 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3160 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3161 return linker_pointers;
252b5132 3162
25dbc73a
AM		 3163 return NULL;
3164}
3165
3166/* Allocate a pointer to live in a linker created section. */
3167
3168static bfd_boolean
3169elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM		 3170 elf_linker_section_t *lsect,
3171 struct elf_link_hash_entry *h,
3172 const Elf_Internal_Rela *rel)
3173{
3174 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3175 elf_linker_section_pointers_t *linker_section_ptr;
3176 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3177 bfd_size_type amt;
3178
3179 BFD_ASSERT (lsect != NULL);
3180
3181 /* Is this a global symbol? */
3182 if (h != NULL)
3183 {
3184 struct ppc_elf_link_hash_entry *eh;
3185
3186 /* Has this symbol already been allocated? If so, our work is done. */
3187 eh = (struct ppc_elf_link_hash_entry *) h;
3188 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3189 rel->r_addend,
3190 lsect))
3191 return TRUE;
3192
3193 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM		 3194 }
3195 else
3196 {
0c8d6e5c 3197 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3198
25dbc73a
AM		 3199 /* Allocation of a pointer to a local symbol. */
3200 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3201
3202 /* Allocate a table to hold the local symbols if first time. */
3203 if (!ptr)
3204 {
0ffa91dd 3205 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM		 3206
3207 amt = num_symbols;
3208 amt *= sizeof (elf_linker_section_pointers_t *);
3209 ptr = bfd_zalloc (abfd, amt);
3210
3211 if (!ptr)
3212 return FALSE;
3213
3214 elf_local_ptr_offsets (abfd) = ptr;
3215 }
3216
3217 /* Has this symbol already been allocated? If so, our work is done. */
3218 if (elf_find_pointer_linker_section (ptr[r_symndx],
3219 rel->r_addend,
3220 lsect))
3221 return TRUE;
252b5132 3222
25dbc73a 3223 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3224 }
41fcb14e 3225
25dbc73a
AM		 3226 /* Allocate space for a pointer in the linker section, and allocate
3227 a new pointer record from internal memory. */
3228 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3229 amt = sizeof (elf_linker_section_pointers_t);
3230 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3231
25dbc73a 3232 if (!linker_section_ptr)
7619e7c7 3233 return FALSE;
41fcb14e 3234
25dbc73a
AM		 3235 linker_section_ptr->next = *ptr_linker_section_ptr;
3236 linker_section_ptr->addend = rel->r_addend;
3237 linker_section_ptr->lsect = lsect;
25dbc73a 3238 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3239
25dbc73a
AM		 3240 linker_section_ptr->offset = lsect->section->size;
3241 lsect->section->size += 4;
7619e7c7 3242
25dbc73a
AM		 3243#ifdef DEBUG
3244 fprintf (stderr,
3245 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3246 lsect->name, (long) linker_section_ptr->offset,
3247 (long) lsect->section->size);
3248#endif
7619e7c7
AM		 3249
3250 return TRUE;
41fcb14e
AM		 3251}
3252
e054468f 3253static struct plt_entry **
25dbc73a
AM		 3254update_local_sym_info (bfd *abfd,
3255 Elf_Internal_Shdr *symtab_hdr,
3256 unsigned long r_symndx,
3257 int tls_type)
252b5132 3258{
25dbc73a 3259 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3260 struct plt_entry **local_plt;
25dbc73a 3261 char *local_got_tls_masks;
252b5132 3262
25dbc73a 3263 if (local_got_refcounts == NULL)
252b5132 3264 {
25dbc73a
AM		 3265 bfd_size_type size = symtab_hdr->sh_info;
3266
e054468f
AM		 3267 size *= (sizeof (*local_got_refcounts)
3268 + sizeof (*local_plt)
3269 + sizeof (*local_got_tls_masks));
25dbc73a
AM		 3270 local_got_refcounts = bfd_zalloc (abfd, size);
3271 if (local_got_refcounts == NULL)
e054468f 3272 return NULL;
25dbc73a 3273 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3274 }
41fcb14e 3275
e054468f
AM		 3276 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3277 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3278 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM		 3279 if (tls_type != PLT_IFUNC)
3280 local_got_refcounts[r_symndx] += 1;
3281 return local_plt + r_symndx;
25dbc73a 3282}
41fcb14e 3283
a6aa5195 3284static bfd_boolean
3ec01793 3285update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM		 3286 asection *sec, bfd_vma addend)
3287{
3288 struct plt_entry *ent;
3289
32af9f6e
AM		 3290 if (addend < 32768)
3291 sec = NULL;
3ec01793 3292 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM		 3293 if (ent->sec == sec && ent->addend == addend)
3294 break;
3295 if (ent == NULL)
3296 {
3297 bfd_size_type amt = sizeof (*ent);
3298 ent = bfd_alloc (abfd, amt);
3299 if (ent == NULL)
3300 return FALSE;
3ec01793 3301 ent->next = *plist;
a6aa5195
AM		 3302 ent->sec = sec;
3303 ent->addend = addend;
3304 ent->plt.refcount = 0;
3ec01793 3305 *plist = ent;
a6aa5195
AM		 3306 }
3307 ent->plt.refcount += 1;
3308 return TRUE;
3309}
3310
3311static struct plt_entry *
3ec01793 3312find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM		 3313{
3314 struct plt_entry *ent;
3315
3316 if (addend < 32768)
3317 sec = NULL;
3ec01793 3318 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM		 3319 if (ent->sec == sec && ent->addend == addend)
3320 break;
3321 return ent;
3322}
3323
e054468f
AM		 3324static bfd_boolean
3325is_branch_reloc (enum elf_ppc_reloc_type r_type)
3326{
3327 return (r_type == R_PPC_PLTREL24
3328 || r_type == R_PPC_LOCAL24PC
3329 || r_type == R_PPC_REL24
3330 || r_type == R_PPC_REL14
3331 || r_type == R_PPC_REL14_BRTAKEN
3332 || r_type == R_PPC_REL14_BRNTAKEN
3333 || r_type == R_PPC_ADDR24
3334 || r_type == R_PPC_ADDR14
3335 || r_type == R_PPC_ADDR14_BRTAKEN
3336 || r_type == R_PPC_ADDR14_BRNTAKEN);
3337}
3338
25dbc73a
AM		 3339static void
3340bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3341{
3342 (*_bfd_error_handler)
3343 (_("%B: relocation %s cannot be used when making a shared object"),
3344 abfd,
3345 ppc_elf_howto_table[r_type]->name);
3346 bfd_set_error (bfd_error_bad_value);
252b5132
RH		 3347}
3348
25dbc73a
AM		 3349/* Look through the relocs for a section during the first phase, and
3350 allocate space in the global offset table or procedure linkage
3351 table. */
252b5132 3352
b34976b6 3353static bfd_boolean
25dbc73a
AM		 3354ppc_elf_check_relocs (bfd *abfd,
3355 struct bfd_link_info *info,
3356 asection *sec,
3357 const Elf_Internal_Rela *relocs)
252b5132 3358{
7619e7c7 3359 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM		 3360 Elf_Internal_Shdr *symtab_hdr;
3361 struct elf_link_hash_entry **sym_hashes;
3362 const Elf_Internal_Rela *rel;
3363 const Elf_Internal_Rela *rel_end;
a6aa5195 3364 asection *got2, *sreloc;
727fc41e 3365 struct elf_link_hash_entry *tga;
25dbc73a
AM		 3366
3367 if (info->relocatable)
3368 return TRUE;
252b5132 3369
c87b5a93
AM		 3370 /* Don't do anything special with non-loaded, non-alloced sections.
3371 In particular, any relocs in such sections should not affect GOT
3372 and PLT reference counting (ie. we don't allow them to create GOT
3373 or PLT entries), there's no possibility or desire to optimize TLS
3374 relocs, and there's not much point in propagating relocs to shared
3375 libs that the dynamic linker won't relocate. */
3376 if ((sec->flags & SEC_ALLOC) == 0)
3377 return TRUE;
3378
252b5132 3379#ifdef DEBUG
25dbc73a
AM		 3380 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3381 sec, abfd);
252b5132
RH		 3382#endif
3383
0c8d6e5c 3384 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3385
25dbc73a
AM		 3386 /* Initialize howto table if not already done. */
3387 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3388 ppc_elf_howto_init ();
3389
7619e7c7 3390 htab = ppc_elf_hash_table (info);
25f23106
AM		 3391 if (htab->glink == NULL)
3392 {
3393 if (htab->elf.dynobj == NULL)
3394 htab->elf.dynobj = abfd;
3395 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3396 return FALSE;
3397 }
727fc41e
AM		 3398 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3399 FALSE, FALSE, TRUE);
0ffa91dd 3400 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3401 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3402 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 3403 sreloc = NULL;
3404
3405 rel_end = relocs + sec->reloc_count;
3406 for (rel = relocs; rel < rel_end; rel++)
3407 {
3408 unsigned long r_symndx;
3409 enum elf_ppc_reloc_type r_type;
3410 struct elf_link_hash_entry *h;
727fc41e 3411 int tls_type;
25dbc73a
AM		 3412
3413 r_symndx = ELF32_R_SYM (rel->r_info);
3414 if (r_symndx < symtab_hdr->sh_info)
3415 h = NULL;
3416 else
973a3492
L		 3417 {
3418 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3419 while (h->root.type == bfd_link_hash_indirect
3420 || h->root.type == bfd_link_hash_warning)
3421 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3422 }
25dbc73a
AM		 3423
3424 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3425 This shows up in particular in an R_PPC_ADDR32 in the eabi
3426 startup code. */
3b36f7e6
AM		 3427 if (h != NULL
3428 && htab->got == NULL
3429 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3430 {
3b36f7e6
AM		 3431 if (htab->elf.dynobj == NULL)
3432 htab->elf.dynobj = abfd;
3433 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3434 return FALSE;
3435 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3436 }
252b5132 3437
727fc41e 3438 tls_type = 0;
de972ffa 3439 r_type = ELF32_R_TYPE (rel->r_info);
06a162cf 3440 if (h == NULL && !htab->is_vxworks)
e054468f 3441 {
06a162cf
AM		 3442 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3443 abfd, r_symndx);
3444 if (isym == NULL)
3445 return FALSE;
3446
3447 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
3448 && (!info->shared
3449 || is_branch_reloc (r_type)))
e054468f 3450 {
06a162cf
AM		 3451 struct plt_entry **ifunc;
3452 bfd_vma addend;
3453
3454 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3455 PLT_IFUNC);
3456 if (ifunc == NULL)
e054468f
AM		 3457 return FALSE;
3458
06a162cf
AM		 3459 /* STT_GNU_IFUNC symbols must have a PLT entry;
3460 In a non-pie executable even when there are
3461 no plt calls. */
3462 addend = 0;
3463 if (r_type == R_PPC_PLTREL24)
e054468f 3464 {
06a162cf
AM		 3465 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3466 if (info->shared)
3467 addend = rel->r_addend;
e054468f 3468 }
06a162cf
AM		 3469 if (!update_plt_info (abfd, ifunc, got2, addend))
3470 return FALSE;
e054468f 3471 }
25f23106
AM		 3472 }
3473
de972ffa
AM		 3474 if (!htab->is_vxworks
3475 && is_branch_reloc (r_type)
3476 && h != NULL
3477 && h == tga)
25f23106 3478 {
de972ffa
AM		 3479 if (rel != relocs
3480 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3481 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3482 /* We have a new-style __tls_get_addr call with a marker
3483 reloc. */
3484 ;
3485 else
3486 /* Mark this section as having an old-style call. */
3487 sec->has_tls_get_addr_call = 1;
e054468f 3488 }
727fc41e 3489
25dbc73a
AM		 3490 switch (r_type)
3491 {
727fc41e
AM		 3492 case R_PPC_TLSGD:
3493 case R_PPC_TLSLD:
3494 /* These special tls relocs tie a call to __tls_get_addr with
3495 its parameter symbol. */
3496 break;
3497
25dbc73a
AM		 3498 case R_PPC_GOT_TLSLD16:
3499 case R_PPC_GOT_TLSLD16_LO:
3500 case R_PPC_GOT_TLSLD16_HI:
3501 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 3502 tls_type = TLS_TLS | TLS_LD;
3503 goto dogottls;
252b5132 3504
25dbc73a
AM		 3505 case R_PPC_GOT_TLSGD16:
3506 case R_PPC_GOT_TLSGD16_LO:
3507 case R_PPC_GOT_TLSGD16_HI:
3508 case R_PPC_GOT_TLSGD16_HA:
3509 tls_type = TLS_TLS | TLS_GD;
3510 goto dogottls;
3511
3512 case R_PPC_GOT_TPREL16:
3513 case R_PPC_GOT_TPREL16_LO:
3514 case R_PPC_GOT_TPREL16_HI:
3515 case R_PPC_GOT_TPREL16_HA:
1d483afe 3516 if (!info->executable)
25dbc73a
AM		 3517 info->flags |= DF_STATIC_TLS;
3518 tls_type = TLS_TLS | TLS_TPREL;
3519 goto dogottls;
3520
3521 case R_PPC_GOT_DTPREL16:
3522 case R_PPC_GOT_DTPREL16_LO:
3523 case R_PPC_GOT_DTPREL16_HI:
3524 case R_PPC_GOT_DTPREL16_HA:
3525 tls_type = TLS_TLS | TLS_DTPREL;
3526 dogottls:
3527 sec->has_tls_reloc = 1;
3528 /* Fall thru */
252b5132 3529
25dbc73a
AM		 3530 /* GOT16 relocations */
3531 case R_PPC_GOT16:
3532 case R_PPC_GOT16_LO:
3533 case R_PPC_GOT16_HI:
3534 case R_PPC_GOT16_HA:
3535 /* This symbol requires a global offset table entry. */
3536 if (htab->got == NULL)
3537 {
3538 if (htab->elf.dynobj == NULL)
3539 htab->elf.dynobj = abfd;
3540 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3541 return FALSE;
3542 }
3543 if (h != NULL)
3544 {
3545 h->got.refcount += 1;
3546 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3547 }
3548 else
3549 /* This is a global offset table entry for a local symbol. */
3550 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3551 return FALSE;
91e21fb7
AM		 3552
3553 /* We may also need a plt entry if the symbol turns out to be
3554 an ifunc. */
3555 if (h != NULL && !info->shared)
3556 {
3557 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
3558 return FALSE;
3559 }
25dbc73a 3560 break;
252b5132 3561
25dbc73a
AM		 3562 /* Indirect .sdata relocation. */
3563 case R_PPC_EMB_SDAI16:
3564 if (info->shared)
3565 {
3566 bad_shared_reloc (abfd, r_type);
3567 return FALSE;
3568 }
c9a2f333
AM		 3569 if (htab->sdata[0].section == NULL
3570 && !ppc_elf_create_linker_section (abfd, info, 0,
3571 &htab->sdata[0]))
3572 return FALSE;
76750a2f
AM		 3573 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
3574 h, rel))
25dbc73a 3575 return FALSE;
046183de
AM		 3576 if (h != NULL)
3577 {
3578 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3579 h->non_got_ref = TRUE;
3580 }
25dbc73a 3581 break;
252b5132 3582
25dbc73a
AM		 3583 /* Indirect .sdata2 relocation. */
3584 case R_PPC_EMB_SDA2I16:
3585 if (info->shared)
3586 {
3587 bad_shared_reloc (abfd, r_type);
3588 return FALSE;
3589 }
c9a2f333
AM		 3590 if (htab->sdata[1].section == NULL
3591 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
3592 &htab->sdata[1]))
3593 return FALSE;
76750a2f
AM		 3594 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
3595 h, rel))
25dbc73a 3596 return FALSE;
046183de
AM		 3597 if (h != NULL)
3598 {
3599 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3600 h->non_got_ref = TRUE;
3601 }
25dbc73a 3602 break;
252b5132 3603
25dbc73a 3604 case R_PPC_SDAREL16:
046183de 3605 if (htab->sdata[0].sym == NULL
bd6c6e2b 3606 && !create_sdata_sym (info, &htab->sdata[0]))
046183de
AM		 3607 return FALSE;
3608 if (h != NULL)
3609 {
3610 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3611 h->non_got_ref = TRUE;
3612 }
3613 break;
3614
25dbc73a 3615 case R_PPC_EMB_SDA2REL:
046183de
AM		 3616 if (info->shared)
3617 {
3618 bad_shared_reloc (abfd, r_type);
3619 return FALSE;
3620 }
3621 if (htab->sdata[1].sym == NULL
bd6c6e2b 3622 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM		 3623 return FALSE;
3624 if (h != NULL)
3625 {
3626 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3627 h->non_got_ref = TRUE;
3628 }
3629 break;
3630
25dbc73a
AM		 3631 case R_PPC_EMB_SDA21:
3632 case R_PPC_EMB_RELSDA:
046183de
AM		 3633 if (info->shared)
3634 {
3635 bad_shared_reloc (abfd, r_type);
3636 return FALSE;
3637 }
3638 if (htab->sdata[0].sym == NULL
bd6c6e2b 3639 && !create_sdata_sym (info, &htab->sdata[0]))
046183de
AM		 3640 return FALSE;
3641 if (htab->sdata[1].sym == NULL
bd6c6e2b 3642 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM		 3643 return FALSE;
3644 if (h != NULL)
3645 {
3646 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
3647 h->non_got_ref = TRUE;
3648 }
3649 break;
3650
25dbc73a
AM		 3651 case R_PPC_EMB_NADDR32:
3652 case R_PPC_EMB_NADDR16:
3653 case R_PPC_EMB_NADDR16_LO:
3654 case R_PPC_EMB_NADDR16_HI:
3655 case R_PPC_EMB_NADDR16_HA:
3656 if (info->shared)
3657 {
3658 bad_shared_reloc (abfd, r_type);
3659 return FALSE;
3660 }
4dc4a9a5 3661 if (h != NULL)
046183de 3662 h->non_got_ref = TRUE;
25dbc73a 3663 break;
252b5132 3664
25dbc73a 3665 case R_PPC_PLTREL24:
de972ffa 3666 if (h == NULL)
6d78d0b9
AM		 3667 break;
3668 /* Fall through */
3669 case R_PPC_PLT32:
25dbc73a
AM		 3670 case R_PPC_PLTREL32:
3671 case R_PPC_PLT16_LO:
3672 case R_PPC_PLT16_HI:
3673 case R_PPC_PLT16_HA:
3674#ifdef DEBUG
3675 fprintf (stderr, "Reloc requires a PLT entry\n");
3676#endif
3677 /* This symbol requires a procedure linkage table entry. We
3678 actually build the entry in finish_dynamic_symbol,
3679 because this might be a case of linking PIC code without
3680 linking in any dynamic objects, in which case we don't
3681 need to generate a procedure linkage table after all. */
7619e7c7 3682
25dbc73a
AM		 3683 if (h == NULL)
3684 {
3685 /* It does not make sense to have a procedure linkage
3686 table entry for a local symbol. */
25f53a85
AM		 3687 info->callbacks->einfo (_("%H: %s reloc against local symbol\n"),
3688 abfd, sec, rel->r_offset,
3689 ppc_elf_howto_table[r_type]->name);
25dbc73a
AM		 3690 bfd_set_error (bfd_error_bad_value);
3691 return FALSE;
3692 }
a6aa5195
AM		 3693 else
3694 {
016687f8 3695 bfd_vma addend = 0;
ee05f2fe 3696
016687f8
AM		 3697 if (r_type == R_PPC_PLTREL24)
3698 {
3699 ppc_elf_tdata (abfd)->makes_plt_call = 1;
a877a2b6
AM		 3700 if (info->shared)
3701 addend = rel->r_addend;
016687f8 3702 }
a6aa5195 3703 h->needs_plt = 1;
32af9f6e 3704 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM		 3705 return FALSE;
3706 }
25dbc73a 3707 break;
ee05f2fe 3708
25dbc73a
AM		 3709 /* The following relocations don't need to propagate the
3710 relocation if linking a shared object since they are
3711 section relative. */
3712 case R_PPC_SECTOFF:
3713 case R_PPC_SECTOFF_LO:
3714 case R_PPC_SECTOFF_HI:
3715 case R_PPC_SECTOFF_HA:
3716 case R_PPC_DTPREL16:
3717 case R_PPC_DTPREL16_LO:
3718 case R_PPC_DTPREL16_HI:
3719 case R_PPC_DTPREL16_HA:
3720 case R_PPC_TOC16:
3721 break;
252b5132 3722
d7128ce4
AM		 3723 case R_PPC_REL16:
3724 case R_PPC_REL16_LO:
3725 case R_PPC_REL16_HI:
3726 case R_PPC_REL16_HA:
016687f8 3727 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM		 3728 break;
3729
a6aa5195 3730 /* These are just markers. */
25dbc73a
AM		 3731 case R_PPC_TLS:
3732 case R_PPC_EMB_MRKREF:
3733 case R_PPC_NONE:
3734 case R_PPC_max:
32af9f6e
AM		 3735 case R_PPC_RELAX:
3736 case R_PPC_RELAX_PLT:
3737 case R_PPC_RELAX_PLTREL24:
25dbc73a 3738 break;
252b5132 3739
25dbc73a
AM		 3740 /* These should only appear in dynamic objects. */
3741 case R_PPC_COPY:
3742 case R_PPC_GLOB_DAT:
3743 case R_PPC_JMP_SLOT:
3744 case R_PPC_RELATIVE:
e054468f 3745 case R_PPC_IRELATIVE:
25dbc73a 3746 break;
252b5132 3747
25dbc73a
AM		 3748 /* These aren't handled yet. We'll report an error later. */
3749 case R_PPC_ADDR30:
3750 case R_PPC_EMB_RELSEC16:
3751 case R_PPC_EMB_RELST_LO:
3752 case R_PPC_EMB_RELST_HI:
3753 case R_PPC_EMB_RELST_HA:
3754 case R_PPC_EMB_BIT_FLD:
3755 break;
252b5132 3756
25dbc73a
AM		 3757 /* This refers only to functions defined in the shared library. */
3758 case R_PPC_LOCAL24PC:
727fc41e 3759 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM		 3760 {
3761 htab->plt_type = PLT_OLD;
3762 htab->old_bfd = abfd;
3763 }
25dbc73a 3764 break;
252b5132 3765
25dbc73a
AM		 3766 /* This relocation describes the C++ object vtable hierarchy.
3767 Reconstruct it for later use during GC. */
3768 case R_PPC_GNU_VTINHERIT:
3769 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3770 return FALSE;
3771 break;
252b5132 3772
25dbc73a
AM		 3773 /* This relocation describes which C++ vtable entries are actually
3774 used. Record for later use during GC. */
3775 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB		 3776 BFD_ASSERT (h != NULL);
3777 if (h != NULL
3778 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM		 3779 return FALSE;
3780 break;
252b5132 3781
25dbc73a
AM		 3782 /* We shouldn't really be seeing these. */
3783 case R_PPC_TPREL32:
1d483afe
AM		 3784 case R_PPC_TPREL16:
3785 case R_PPC_TPREL16_LO:
3786 case R_PPC_TPREL16_HI:
3787 case R_PPC_TPREL16_HA:
3788 if (!info->executable)
25dbc73a
AM		 3789 info->flags |= DF_STATIC_TLS;
3790 goto dodyn;
252b5132 3791
25dbc73a
AM		 3792 /* Nor these. */
3793 case R_PPC_DTPMOD32:
3794 case R_PPC_DTPREL32:
3795 goto dodyn;
252b5132 3796
9edfd1af
AM		 3797 case R_PPC_REL32:
3798 if (h == NULL
3799 && got2 != NULL
3800 && (sec->flags & SEC_CODE) != 0
a877a2b6 3801 && info->shared
4a3dc543 3802 && htab->plt_type == PLT_UNSET)
9edfd1af
AM		 3803 {
3804 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
3805 the start of a function, which assembles to a REL32
3806 reference to .got2. If we detect one of these, then
3807 force the old PLT layout because the linker cannot
3808 reliably deduce the GOT pointer value needed for
3809 PLT call stubs. */
3810 asection *s;
87d72d41 3811 Elf_Internal_Sym *isym;
9edfd1af 3812
87d72d41
AM		 3813 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3814 abfd, r_symndx);
3815 if (isym == NULL)
3816 return FALSE;
3817
3818 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 3819 if (s == got2)
016687f8
AM		 3820 {
3821 htab->plt_type = PLT_OLD;
3822 htab->old_bfd = abfd;
3823 }
9edfd1af 3824 }
7123df0e 3825 if (h == NULL || h == htab->elf.hgot)
fd38b44c 3826 break;
625af618
AM		 3827 /* fall through */
3828
3829 case R_PPC_ADDR32:
3830 case R_PPC_ADDR16:
3831 case R_PPC_ADDR16_LO:
3832 case R_PPC_ADDR16_HI:
3833 case R_PPC_ADDR16_HA:
3834 case R_PPC_UADDR32:
3835 case R_PPC_UADDR16:
3836 if (h != NULL && !info->shared)
3837 {
3838 /* We may need a plt entry if the symbol turns out to be
3839 a function defined in a dynamic object. */
3ec01793 3840 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM		 3841 return FALSE;
3842
3843 /* We may need a copy reloc too. */
3844 h->non_got_ref = 1;
3845 h->pointer_equality_needed = 1;
3846 }
3847 goto dodyn;
9edfd1af 3848
25dbc73a
AM		 3849 case R_PPC_REL24:
3850 case R_PPC_REL14:
3851 case R_PPC_REL14_BRTAKEN:
3852 case R_PPC_REL14_BRNTAKEN:
d7128ce4 3853 if (h == NULL)
25dbc73a 3854 break;
7123df0e 3855 if (h == htab->elf.hgot)
d7128ce4 3856 {
7123df0e 3857 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 3858 {
3859 htab->plt_type = PLT_OLD;
3860 htab->old_bfd = abfd;
3861 }
d7128ce4
AM		 3862 break;
3863 }
25dbc73a 3864 /* fall through */
ee05f2fe 3865
25dbc73a 3866 case R_PPC_ADDR24:
25dbc73a
AM		 3867 case R_PPC_ADDR14:
3868 case R_PPC_ADDR14_BRTAKEN:
3869 case R_PPC_ADDR14_BRNTAKEN:
25dbc73a
AM		 3870 if (h != NULL && !info->shared)
3871 {
3872 /* We may need a plt entry if the symbol turns out to be
3873 a function defined in a dynamic object. */
e054468f 3874 h->needs_plt = 1;
de972ffa 3875 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 3876 return FALSE;
625af618 3877 break;
25dbc73a 3878 }
7619e7c7 3879
25dbc73a
AM		 3880 dodyn:
3881 /* If we are creating a shared library, and this is a reloc
3882 against a global symbol, or a non PC relative reloc
3883 against a local symbol, then we need to copy the reloc
3884 into the shared library. However, if we are linking with
3885 -Bsymbolic, we do not need to copy a reloc against a
3886 global symbol which is defined in an object we are
3887 including in the link (i.e., DEF_REGULAR is set). At
3888 this point we have not seen all the input files, so it is
3889 possible that DEF_REGULAR is not set now but will be set
3890 later (it is never cleared). In case of a weak definition,
3891 DEF_REGULAR may be cleared later by a strong definition in
3892 a shared library. We account for that possibility below by
3893 storing information in the dyn_relocs field of the hash
3894 table entry. A similar situation occurs when creating
3895 shared libraries and symbol visibility changes render the
3896 symbol local.
7619e7c7 3897
25dbc73a
AM		 3898 If on the other hand, we are creating an executable, we
3899 may need to keep relocations for symbols satisfied by a
3900 dynamic library if we manage to avoid copy relocs for the
3901 symbol. */
3902 if ((info->shared
1d483afe 3903 && (must_be_dyn_reloc (info, r_type)
25dbc73a
AM		 3904 || (h != NULL
3905 && (! info->symbolic
3906 || h->root.type == bfd_link_hash_defweak
3907 || !h->def_regular))))
3908 || (ELIMINATE_COPY_RELOCS
3909 && !info->shared
25dbc73a
AM		 3910 && h != NULL
3911 && (h->root.type == bfd_link_hash_defweak
de972ffa 3912 || !h->def_regular)))
25dbc73a 3913 {
6061a67d
AM		 3914 struct elf_dyn_relocs *p;
3915 struct elf_dyn_relocs **rel_head;
7619e7c7 3916
25dbc73a
AM		 3917#ifdef DEBUG
3918 fprintf (stderr,
3919 "ppc_elf_check_relocs needs to "
3920 "create relocation for %s\n",
3921 (h && h->root.root.string
3922 ? h->root.root.string : "<unknown>"));
3923#endif
3924 if (sreloc == NULL)
3925 {
c9a2f333
AM		 3926 if (htab->elf.dynobj == NULL)
3927 htab->elf.dynobj = abfd;
83bac4b0
NC		 3928
3929 sreloc = _bfd_elf_make_dynamic_reloc_section
3930 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
3931
25dbc73a 3932 if (sreloc == NULL)
83bac4b0 3933 return FALSE;
25dbc73a 3934 }
7619e7c7 3935
25dbc73a
AM		 3936 /* If this is a global symbol, we count the number of
3937 relocations we need for this symbol. */
3938 if (h != NULL)
3939 {
91d6fa6a 3940 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
25dbc73a
AM		 3941 }
3942 else
3943 {
3944 /* Track dynamic relocs needed for local syms too.
3945 We really need local syms available to do this
3946 easily. Oh well. */
25dbc73a 3947 asection *s;
6edfbbad 3948 void *vpp;
87d72d41 3949 Elf_Internal_Sym *isym;
6edfbbad 3950
87d72d41
AM		 3951 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3952 abfd, r_symndx);
3953 if (isym == NULL)
25dbc73a 3954 return FALSE;
7fce784e 3955
87d72d41
AM		 3956 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3957 if (s == NULL)
3958 s = sec;
3959
6edfbbad 3960 vpp = &elf_section_data (s)->local_dynrel;
6061a67d 3961 rel_head = (struct elf_dyn_relocs **) vpp;
25dbc73a 3962 }
7fce784e 3963
91d6fa6a 3964 p = *rel_head;
25dbc73a
AM		 3965 if (p == NULL || p->sec != sec)
3966 {
3967 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3968 if (p == NULL)
3969 return FALSE;
91d6fa6a
NC		 3970 p->next = *rel_head;
3971 *rel_head = p;
25dbc73a
AM		 3972 p->sec = sec;
3973 p->count = 0;
3974 p->pc_count = 0;
3975 }
3976
3977 p->count += 1;
1d483afe 3978 if (!must_be_dyn_reloc (info, r_type))
25dbc73a 3979 p->pc_count += 1;
7619e7c7 3980 }
25dbc73a
AM		 3981
3982 break;
7619e7c7
AM		 3983 }
3984 }
ee05f2fe 3985
25dbc73a
AM		 3986 return TRUE;
3987}
3988\f
34c8bcba
JM		 3989
3990/* Merge object attributes from IBFD into OBFD. Raise an error if
3991 there are conflicting attributes. */
3992static bfd_boolean
3993ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
3994{
c6e65352
DJ		 3995 obj_attribute *in_attr, *in_attrs;
3996 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM		 3997
3998 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3999 {
4000 /* This is the first object. Copy the attributes. */
4001 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4002
4003 /* Use the Tag_null value to indicate the attributes have been
4004 initialized. */
4005 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4006
4007 return TRUE;
4008 }
4009
c6e65352
DJ		 4010 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4011 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4012
34c8bcba
JM		 4013 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4014 non-conflicting ones. */
c6e65352
DJ		 4015 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4016 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4017 if (in_attr->i != out_attr->i)
34c8bcba 4018 {
c6e65352
DJ		 4019 out_attr->type = 1;
4020 if (out_attr->i == 0)
4021 out_attr->i = in_attr->i;
4022 else if (in_attr->i == 0)
34c8bcba 4023 ;
c6e65352 4024 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM		 4025 _bfd_error_handler
4026 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
3c7b9897
AM		 4027 else if (out_attr->i == 1 && in_attr->i == 3)
4028 _bfd_error_handler
5b914448 4029 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM		 4030 obfd, ibfd);
4031 else if (out_attr->i == 3 && in_attr->i == 1)
4032 _bfd_error_handler
5b914448 4033 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM		 4034 ibfd, obfd);
4035 else if (out_attr->i == 3 && in_attr->i == 2)
4036 _bfd_error_handler
5b914448 4037 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
3c7b9897
AM		 4038 ibfd, obfd);
4039 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
34c8bcba
JM		 4040 _bfd_error_handler
4041 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
3c7b9897 4042 else if (in_attr->i > 3)
34c8bcba
JM		 4043 _bfd_error_handler
4044 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 4045 in_attr->i);
34c8bcba
JM		 4046 else
4047 _bfd_error_handler
4048 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ		 4049 out_attr->i);
4050 }
4051
4052 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4053 merge non-conflicting ones. */
4054 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4055 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4056 if (in_attr->i != out_attr->i)
4057 {
4058 const char *in_abi = NULL, *out_abi = NULL;
4059
4060 switch (in_attr->i)
4061 {
4062 case 1: in_abi = "generic"; break;
4063 case 2: in_abi = "AltiVec"; break;
4064 case 3: in_abi = "SPE"; break;
4065 }
4066
4067 switch (out_attr->i)
4068 {
4069 case 1: out_abi = "generic"; break;
4070 case 2: out_abi = "AltiVec"; break;
4071 case 3: out_abi = "SPE"; break;
4072 }
4073
4074 out_attr->type = 1;
4075 if (out_attr->i == 0)
4076 out_attr->i = in_attr->i;
4077 else if (in_attr->i == 0)
4078 ;
4079 /* For now, allow generic to transition to AltiVec or SPE
4080 without a warning. If GCC marked files with their stack
4081 alignment and used don't-care markings for files which are
4082 not affected by the vector ABI, we could warn about this
4083 case too. */
4084 else if (out_attr->i == 1)
4085 out_attr->i = in_attr->i;
4086 else if (in_attr->i == 1)
4087 ;
4088 else if (in_abi == NULL)
4089 _bfd_error_handler
4090 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4091 in_attr->i);
4092 else if (out_abi == NULL)
4093 _bfd_error_handler
4094 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4095 in_attr->i);
4096 else
4097 _bfd_error_handler
4098 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4099 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM		 4100 }
4101
f82e0623
NF		 4102 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4103 and merge non-conflicting ones. */
4104 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4105 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4106 if (in_attr->i != out_attr->i)
4107 {
4108 out_attr->type = 1;
4109 if (out_attr->i == 0)
4110 out_attr->i = in_attr->i;
4111 else if (in_attr->i == 0)
4112 ;
4113 else if (out_attr->i == 1 && in_attr->i == 2)
4114 _bfd_error_handler
4115 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4116 else if (out_attr->i == 2 && in_attr->i == 1)
4117 _bfd_error_handler
4118 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4119 else if (in_attr->i > 2)
4120 _bfd_error_handler
4121 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4122 in_attr->i);
4123 else
4124 _bfd_error_handler
4125 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4126 out_attr->i);
4127 }
4128
34c8bcba
JM		 4129 /* Merge Tag_compatibility attributes and any common GNU ones. */
4130 _bfd_elf_merge_object_attributes (ibfd, obfd);
4131
4132 return TRUE;
4133}
4134
8853c3d3
AM		 4135/* Merge backend specific data from an object file to the output
4136 object file when linking. */
4137
4138static bfd_boolean
4139ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4140{
4141 flagword old_flags;
4142 flagword new_flags;
4143 bfd_boolean error;
4144
0c8d6e5c 4145 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM		 4146 return TRUE;
4147
cc643b88 4148 /* Check if we have the same endianness. */
8853c3d3
AM		 4149 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4150 return FALSE;
4151
34c8bcba
JM		 4152 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4153 return FALSE;
4154
8853c3d3
AM		 4155 new_flags = elf_elfheader (ibfd)->e_flags;
4156 old_flags = elf_elfheader (obfd)->e_flags;
4157 if (!elf_flags_init (obfd))
4158 {
4159 /* First call, no flags set. */
4160 elf_flags_init (obfd) = TRUE;
4161 elf_elfheader (obfd)->e_flags = new_flags;
4162 }
4163
4164 /* Compatible flags are ok. */
4165 else if (new_flags == old_flags)
4166 ;
4167
4168 /* Incompatible flags. */
4169 else
4170 {
4171 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4172 to be linked with either. */
4173 error = FALSE;
4174 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4175 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4176 {
4177 error = TRUE;
4178 (*_bfd_error_handler)
4179 (_("%B: compiled with -mrelocatable and linked with "
4180 "modules compiled normally"), ibfd);
4181 }
4182 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4183 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4184 {
4185 error = TRUE;
4186 (*_bfd_error_handler)
4187 (_("%B: compiled normally and linked with "
4188 "modules compiled with -mrelocatable"), ibfd);
4189 }
4190
4191 /* The output is -mrelocatable-lib iff both the input files are. */
4192 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4193 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4194
4195 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4196 but each input file is either -mrelocatable or -mrelocatable-lib. */
4197 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4198 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4199 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4200 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4201
4202 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4203 any module uses it. */
4204 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4205
4206 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4207 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4208
4209 /* Warn about any other mismatches. */
4210 if (new_flags != old_flags)
4211 {
4212 error = TRUE;
4213 (*_bfd_error_handler)
4214 (_("%B: uses different e_flags (0x%lx) fields "
4215 "than previous modules (0x%lx)"),
4216 ibfd, (long) new_flags, (long) old_flags);
4217 }
4218
4219 if (error)
4220 {
4221 bfd_set_error (bfd_error_bad_value);
4222 return FALSE;
4223 }
4224 }
4225
4226 return TRUE;
4227}
4228\f
d7128ce4
AM		 4229/* Choose which PLT scheme to use, and set .plt flags appropriately.
4230 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4231int
4232ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4233 struct bfd_link_info *info,
016687f8 4234 enum ppc_elf_plt_type plt_style,
0ba07910 4235 int emit_stub_syms)
d7128ce4
AM		 4236{
4237 struct ppc_elf_link_hash_table *htab;
9d8504b1 4238 flagword flags;
d7128ce4
AM		 4239
4240 htab = ppc_elf_hash_table (info);
4a3dc543 4241
a7f2871e
AM		 4242 htab->emit_stub_syms = emit_stub_syms;
4243
4a3dc543 4244 if (htab->plt_type == PLT_UNSET)
016687f8
AM		 4245 {
4246 if (plt_style == PLT_OLD)
4247 htab->plt_type = PLT_OLD;
4248 else
4249 {
4250 bfd *ibfd;
4251 enum ppc_elf_plt_type plt_type = plt_style;
4252
4253 /* Look through the reloc flags left by ppc_elf_check_relocs.
4254 Use the old style bss plt if a file makes plt calls
4255 without using the new relocs, and if ld isn't given
4256 --secure-plt and we never see REL16 relocs. */
4257 if (plt_type == PLT_UNSET)
4258 plt_type = PLT_OLD;
60b31e8d 4259 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
0c8d6e5c 4260 if (is_ppc_elf (ibfd))
016687f8
AM		 4261 {
4262 if (ppc_elf_tdata (ibfd)->has_rel16)
4263 plt_type = PLT_NEW;
4264 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4265 {
4266 plt_type = PLT_OLD;
4267 htab->old_bfd = ibfd;
4268 break;
4269 }
4270 }
4271 htab->plt_type = plt_type;
4272 }
4273 }
4274 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
4275 info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd);
d7128ce4 4276
4a3dc543 4277 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 4278
4a3dc543 4279 if (htab->plt_type == PLT_NEW)
9d8504b1
PB		 4280 {
4281 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4282 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM		 4283
4284 /* The new PLT is a loaded section. */
4285 if (htab->plt != NULL
4286 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4287 return -1;
4288
4289 /* The new GOT is not executable. */
4290 if (htab->got != NULL
4291 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4292 return -1;
d7128ce4
AM		 4293 }
4294 else
4295 {
4296 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM		 4297 if (htab->glink != NULL
4298 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4299 return -1;
d7128ce4 4300 }
4a3dc543 4301 return htab->plt_type == PLT_NEW;
d7128ce4
AM		 4302}
4303\f
25dbc73a
AM		 4304/* Return the section that should be marked against GC for a given
4305 relocation. */
586119b3 4306
25dbc73a
AM		 4307static asection *
4308ppc_elf_gc_mark_hook (asection *sec,
07adf181 4309 struct bfd_link_info *info,
25dbc73a
AM		 4310 Elf_Internal_Rela *rel,
4311 struct elf_link_hash_entry *h,
4312 Elf_Internal_Sym *sym)
4313{
4314 if (h != NULL)
07adf181
AM		 4315 switch (ELF32_R_TYPE (rel->r_info))
4316 {
4317 case R_PPC_GNU_VTINHERIT:
4318 case R_PPC_GNU_VTENTRY:
4319 return NULL;
4320 }
4321
4322 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 4323}
a876ecf9 4324
25dbc73a
AM		 4325/* Update the got, plt and dynamic reloc reference counts for the
4326 section being removed. */
4327
4328static bfd_boolean
4329ppc_elf_gc_sweep_hook (bfd *abfd,
4330 struct bfd_link_info *info,
4331 asection *sec,
4332 const Elf_Internal_Rela *relocs)
4333{
4334 struct ppc_elf_link_hash_table *htab;
4335 Elf_Internal_Shdr *symtab_hdr;
4336 struct elf_link_hash_entry **sym_hashes;
4337 bfd_signed_vma *local_got_refcounts;
4338 const Elf_Internal_Rela *rel, *relend;
a6aa5195 4339 asection *got2;
25dbc73a 4340
7dda2462
TG		 4341 if (info->relocatable)
4342 return TRUE;
4343
c87b5a93
AM		 4344 if ((sec->flags & SEC_ALLOC) == 0)
4345 return TRUE;
4346
25dbc73a
AM		 4347 elf_section_data (sec)->local_dynrel = NULL;
4348
4349 htab = ppc_elf_hash_table (info);
0ffa91dd 4350 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM		 4351 sym_hashes = elf_sym_hashes (abfd);
4352 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 4353 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM		 4354
4355 relend = relocs + sec->reloc_count;
4356 for (rel = relocs; rel < relend; rel++)
4357 {
4358 unsigned long r_symndx;
4359 enum elf_ppc_reloc_type r_type;
4360 struct elf_link_hash_entry *h = NULL;
4361
4362 r_symndx = ELF32_R_SYM (rel->r_info);
4363 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 4364 {
6061a67d 4365 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM		 4366 struct ppc_elf_link_hash_entry *eh;
4367
4368 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4369 while (h->root.type == bfd_link_hash_indirect
4370 || h->root.type == bfd_link_hash_warning)
4371 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4372 eh = (struct ppc_elf_link_hash_entry *) h;
4373
4374 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4375 if (p->sec == sec)
4376 {
4377 /* Everything must go for SEC. */
4378 *pp = p->next;
4379 break;
4380 }
a876ecf9 4381 }
ee05f2fe 4382
25dbc73a 4383 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM		 4384 if (!htab->is_vxworks
4385 && h == NULL
4386 && local_got_refcounts != NULL
4387 && (!info->shared
4388 || is_branch_reloc (r_type)))
e054468f 4389 {
de972ffa
AM		 4390 struct plt_entry **local_plt = (struct plt_entry **)
4391 (local_got_refcounts + symtab_hdr->sh_info);
4392 char *local_got_tls_masks = (char *)
4393 (local_plt + symtab_hdr->sh_info);
4394 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 4395 {
de972ffa 4396 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM		 4397 bfd_vma addend = 0;
4398 struct plt_entry *ent;
4399
4400 if (r_type == R_PPC_PLTREL24 && info->shared)
4401 addend = rel->r_addend;
4402 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM		 4403 if (ent->plt.refcount > 0)
4404 ent->plt.refcount -= 1;
4405 continue;
4406 }
4407 }
4408
25dbc73a 4409 switch (r_type)
ee05f2fe 4410 {
25dbc73a
AM		 4411 case R_PPC_GOT_TLSLD16:
4412 case R_PPC_GOT_TLSLD16_LO:
4413 case R_PPC_GOT_TLSLD16_HI:
4414 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM		 4415 case R_PPC_GOT_TLSGD16:
4416 case R_PPC_GOT_TLSGD16_LO:
4417 case R_PPC_GOT_TLSGD16_HI:
4418 case R_PPC_GOT_TLSGD16_HA:
4419 case R_PPC_GOT_TPREL16:
4420 case R_PPC_GOT_TPREL16_LO:
4421 case R_PPC_GOT_TPREL16_HI:
4422 case R_PPC_GOT_TPREL16_HA:
4423 case R_PPC_GOT_DTPREL16:
4424 case R_PPC_GOT_DTPREL16_LO:
4425 case R_PPC_GOT_DTPREL16_HI:
4426 case R_PPC_GOT_DTPREL16_HA:
4427 case R_PPC_GOT16:
4428 case R_PPC_GOT16_LO:
4429 case R_PPC_GOT16_HI:
4430 case R_PPC_GOT16_HA:
4431 if (h != NULL)
ee05f2fe 4432 {
25dbc73a
AM		 4433 if (h->got.refcount > 0)
4434 h->got.refcount--;
91e21fb7
AM		 4435 if (!info->shared)
4436 {
4437 struct plt_entry *ent;
4438
4439 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 4440 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM		 4441 ent->plt.refcount -= 1;
4442 }
ee05f2fe 4443 }
25dbc73a
AM		 4444 else if (local_got_refcounts != NULL)
4445 {
4446 if (local_got_refcounts[r_symndx] > 0)
4447 local_got_refcounts[r_symndx]--;
4448 }
4449 break;
ee05f2fe 4450
25dbc73a
AM		 4451 case R_PPC_REL24:
4452 case R_PPC_REL14:
4453 case R_PPC_REL14_BRTAKEN:
4454 case R_PPC_REL14_BRNTAKEN:
4455 case R_PPC_REL32:
3b36f7e6 4456 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM		 4457 break;
4458 /* Fall thru */
ee05f2fe 4459
25dbc73a
AM		 4460 case R_PPC_ADDR32:
4461 case R_PPC_ADDR24:
4462 case R_PPC_ADDR16:
4463 case R_PPC_ADDR16_LO:
4464 case R_PPC_ADDR16_HI:
4465 case R_PPC_ADDR16_HA:
4466 case R_PPC_ADDR14:
4467 case R_PPC_ADDR14_BRTAKEN:
4468 case R_PPC_ADDR14_BRNTAKEN:
4469 case R_PPC_UADDR32:
4470 case R_PPC_UADDR16:
87538722
AM		 4471 if (info->shared)
4472 break;
4473
25dbc73a
AM		 4474 case R_PPC_PLT32:
4475 case R_PPC_PLTREL24:
87538722 4476 case R_PPC_PLTREL32:
25dbc73a
AM		 4477 case R_PPC_PLT16_LO:
4478 case R_PPC_PLT16_HI:
4479 case R_PPC_PLT16_HA:
4480 if (h != NULL)
4481 {
a877a2b6
AM		 4482 bfd_vma addend = 0;
4483 struct plt_entry *ent;
4484
4485 if (r_type == R_PPC_PLTREL24 && info->shared)
4486 addend = rel->r_addend;
4487 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 4488 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 4489 ent->plt.refcount -= 1;
25dbc73a
AM		 4490 }
4491 break;
ee05f2fe 4492
25dbc73a
AM		 4493 default:
4494 break;
4495 }
7fce784e 4496 }
7fce784e
AS		 4497 return TRUE;
4498}
25dbc73a 4499\f
3a71aa26
AM		 4500/* Set plt output section type, htab->tls_get_addr, and call the
4501 generic ELF tls_setup function. */
7fce784e 4502
25dbc73a 4503asection *
a7f2871e
AM		 4504ppc_elf_tls_setup (bfd *obfd,
4505 struct bfd_link_info *info,
4506 int no_tls_get_addr_opt)
7fce784e 4507{
25dbc73a 4508 struct ppc_elf_link_hash_table *htab;
7fce784e 4509
25dbc73a 4510 htab = ppc_elf_hash_table (info);
a7f2871e
AM		 4511 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4512 FALSE, FALSE, TRUE);
4513 if (!no_tls_get_addr_opt)
4514 {
4515 struct elf_link_hash_entry *opt, *tga;
4516 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
4517 FALSE, FALSE, TRUE);
4518 if (opt != NULL
4519 && (opt->root.type == bfd_link_hash_defined
4520 || opt->root.type == bfd_link_hash_defweak))
4521 {
4522 /* If glibc supports an optimized __tls_get_addr call stub,
4523 signalled by the presence of __tls_get_addr_opt, and we'll
4524 be calling __tls_get_addr via a plt call stub, then
4525 make __tls_get_addr point to __tls_get_addr_opt. */
4526 tga = htab->tls_get_addr;
4527 if (htab->elf.dynamic_sections_created
4528 && tga != NULL
4529 && (tga->type == STT_FUNC
4530 || tga->needs_plt)
4531 && !(SYMBOL_CALLS_LOCAL (info, tga)
4532 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
4533 && tga->root.type == bfd_link_hash_undefweak)))
4534 {
4535 struct plt_entry *ent;
32af9f6e
AM		 4536 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
4537 if (ent->plt.refcount > 0)
4538 break;
4539 if (ent != NULL)
a7f2871e
AM		 4540 {
4541 tga->root.type = bfd_link_hash_indirect;
4542 tga->root.u.i.link = &opt->root;
4543 ppc_elf_copy_indirect_symbol (info, opt, tga);
4544 if (opt->dynindx != -1)
4545 {
4546 /* Use __tls_get_addr_opt in dynamic relocations. */
4547 opt->dynindx = -1;
4548 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4549 opt->dynstr_index);
4550 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
4551 return FALSE;
4552 }
4553 htab->tls_get_addr = opt;
4554 }
4555 }
4556 }
4557 else
4558 no_tls_get_addr_opt = TRUE;
4559 }
4560 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
4a3dc543 4561 if (htab->plt_type == PLT_NEW
d7128ce4
AM		 4562 && htab->plt != NULL
4563 && htab->plt->output_section != NULL)
4564 {
4565 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
4566 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
4567 }
4568
25dbc73a 4569 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS		 4570}
4571
3a71aa26
AM		 4572/* Return TRUE iff REL is a branch reloc with a global symbol matching
4573 HASH. */
4574
4575static bfd_boolean
4576branch_reloc_hash_match (const bfd *ibfd,
4577 const Elf_Internal_Rela *rel,
4578 const struct elf_link_hash_entry *hash)
4579{
4580 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
4581 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
4582 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
4583
e054468f 4584 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM		 4585 {
4586 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4587 struct elf_link_hash_entry *h;
4588
4589 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4590 while (h->root.type == bfd_link_hash_indirect
4591 || h->root.type == bfd_link_hash_warning)
4592 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4593 if (h == hash)
4594 return TRUE;
4595 }
4596 return FALSE;
4597}
4598
25dbc73a
AM		 4599/* Run through all the TLS relocs looking for optimization
4600 opportunities. */
252b5132 4601
25dbc73a
AM		 4602bfd_boolean
4603ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4604 struct bfd_link_info *info)
252b5132 4605{
7fce784e 4606 bfd *ibfd;
25dbc73a
AM		 4607 asection *sec;
4608 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 4609 int pass;
252b5132 4610
1d483afe 4611 if (info->relocatable || !info->executable)
25dbc73a 4612 return TRUE;
252b5132 4613
7619e7c7 4614 htab = ppc_elf_hash_table (info);
663a1470
AM		 4615 if (htab == NULL)
4616 return FALSE;
4617
b7fcf6f6
AM		 4618 /* Make two passes through the relocs. First time check that tls
4619 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM		 4620 followed by such a call. If they are not, don't do any tls
4621 optimization. On the second pass twiddle tls_mask flags to
4622 notify relocate_section that optimization can be done, and
4623 adjust got and plt refcounts. */
b7fcf6f6
AM		 4624 for (pass = 0; pass < 2; ++pass)
4625 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4626 {
4627 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 4628 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 4629 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 4630
b7fcf6f6
AM		 4631 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4632 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4633 {
4634 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 4635 int expecting_tls_get_addr = 0;
252b5132 4636
b7fcf6f6
AM		 4637 /* Read the relocations. */
4638 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4639 info->keep_memory);
4640 if (relstart == NULL)
4641 return FALSE;
7619e7c7 4642
b7fcf6f6
AM		 4643 relend = relstart + sec->reloc_count;
4644 for (rel = relstart; rel < relend; rel++)
4645 {
4646 enum elf_ppc_reloc_type r_type;
4647 unsigned long r_symndx;
4648 struct elf_link_hash_entry *h = NULL;
4649 char *tls_mask;
4650 char tls_set, tls_clear;
4651 bfd_boolean is_local;
b7fcf6f6
AM		 4652 bfd_signed_vma *got_count;
4653
4654 r_symndx = ELF32_R_SYM (rel->r_info);
4655 if (r_symndx >= symtab_hdr->sh_info)
4656 {
4657 struct elf_link_hash_entry **sym_hashes;
7fce784e 4658
b7fcf6f6
AM		 4659 sym_hashes = elf_sym_hashes (ibfd);
4660 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4661 while (h->root.type == bfd_link_hash_indirect
4662 || h->root.type == bfd_link_hash_warning)
4663 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4664 }
7619e7c7 4665
b7fcf6f6
AM		 4666 is_local = FALSE;
4667 if (h == NULL
4668 || !h->def_dynamic)
4669 is_local = TRUE;
7619e7c7 4670
b7fcf6f6 4671 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM		 4672 /* If this section has old-style __tls_get_addr calls
4673 without marker relocs, then check that each
4674 __tls_get_addr call reloc is preceded by a reloc
4675 that conceivably belongs to the __tls_get_addr arg
4676 setup insn. If we don't find matching arg setup
4677 relocs, don't do any tls optimization. */
4678 if (pass == 0
4679 && sec->has_tls_get_addr_call
4680 && h != NULL
4681 && h == htab->tls_get_addr
4682 && !expecting_tls_get_addr
4683 && is_branch_reloc (r_type))
4684 {
25f53a85 4685 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM		 4686 "TLS optimization disabled\n",
4687 ibfd, sec, rel->r_offset);
4688 if (elf_section_data (sec)->relocs != relstart)
4689 free (relstart);
4690 return TRUE;
4691 }
4692
4693 expecting_tls_get_addr = 0;
b7fcf6f6
AM		 4694 switch (r_type)
4695 {
4696 case R_PPC_GOT_TLSLD16:
4697 case R_PPC_GOT_TLSLD16_LO:
4698 expecting_tls_get_addr = 1;
4699 /* Fall thru */
4700
4701 case R_PPC_GOT_TLSLD16_HI:
4702 case R_PPC_GOT_TLSLD16_HA:
4703 /* These relocs should never be against a symbol
4704 defined in a shared lib. Leave them alone if
4705 that turns out to be the case. */
4706 if (!is_local)
4707 continue;
4708
4709 /* LD -> LE */
4710 tls_set = 0;
4711 tls_clear = TLS_LD;
4712 break;
4713
4714 case R_PPC_GOT_TLSGD16:
4715 case R_PPC_GOT_TLSGD16_LO:
4716 expecting_tls_get_addr = 1;
4717 /* Fall thru */
4718
4719 case R_PPC_GOT_TLSGD16_HI:
4720 case R_PPC_GOT_TLSGD16_HA:
4721 if (is_local)
4722 /* GD -> LE */
4723 tls_set = 0;
4724 else
4725 /* GD -> IE */
4726 tls_set = TLS_TLS | TLS_TPRELGD;
4727 tls_clear = TLS_GD;
4728 break;
4729
4730 case R_PPC_GOT_TPREL16:
4731 case R_PPC_GOT_TPREL16_LO:
4732 case R_PPC_GOT_TPREL16_HI:
4733 case R_PPC_GOT_TPREL16_HA:
4734 if (is_local)
4735 {
4736 /* IE -> LE */
4737 tls_set = 0;
4738 tls_clear = TLS_TPREL;
4739 break;
4740 }
4741 else
4742 continue;
4743
32af9f6e
AM		 4744 case R_PPC_TLSGD:
4745 case R_PPC_TLSLD:
4746 expecting_tls_get_addr = 2;
4747 tls_set = 0;
4748 tls_clear = 0;
4749 break;
4750
b7fcf6f6 4751 default:
25dbc73a 4752 continue;
b7fcf6f6 4753 }
25dbc73a 4754
b7fcf6f6
AM		 4755 if (pass == 0)
4756 {
727fc41e 4757 if (!expecting_tls_get_addr
32af9f6e
AM		 4758 || (expecting_tls_get_addr == 1
4759 && !sec->has_tls_get_addr_call))
b7fcf6f6 4760 continue;
25dbc73a 4761
3a71aa26
AM		 4762 if (rel + 1 < relend
4763 && branch_reloc_hash_match (ibfd, rel + 1,
4764 htab->tls_get_addr))
4765 continue;
25dbc73a 4766
b7fcf6f6
AM		 4767 /* Uh oh, we didn't find the expected call. We
4768 could just mark this symbol to exclude it
4769 from tls optimization but it's safer to skip
663a1470 4770 the entire optimization. */
25f53a85 4771 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM		 4772 "TLS optimization disabled\n"),
4773 ibfd, sec, rel->r_offset);
4774 if (elf_section_data (sec)->relocs != relstart)
4775 free (relstart);
4776 return TRUE;
b7fcf6f6 4777 }
25dbc73a 4778
32af9f6e
AM		 4779 if (expecting_tls_get_addr)
4780 {
4781 struct plt_entry *ent;
4782 bfd_vma addend = 0;
4783
4784 if (info->shared
4785 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
4786 addend = rel[1].r_addend;
4787 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
4788 got2, addend);
4789 if (ent != NULL && ent->plt.refcount > 0)
4790 ent->plt.refcount -= 1;
4791
4792 if (expecting_tls_get_addr == 2)
4793 continue;
4794 }
4795
b7fcf6f6
AM		 4796 if (h != NULL)
4797 {
4798 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4799 got_count = &h->got.refcount;
4800 }
4801 else
4802 {
b7fcf6f6 4803 bfd_signed_vma *lgot_refs;
e054468f 4804 struct plt_entry **local_plt;
b7fcf6f6 4805 char *lgot_masks;
25dbc73a 4806
b7fcf6f6
AM		 4807 if (locsyms == NULL)
4808 {
4809 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4810 if (locsyms == NULL)
4811 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4812 symtab_hdr->sh_info,
4813 0, NULL, NULL, NULL);
4814 if (locsyms == NULL)
4815 {
4816 if (elf_section_data (sec)->relocs != relstart)
4817 free (relstart);
4818 return FALSE;
4819 }
4820 }
b7fcf6f6
AM		 4821 lgot_refs = elf_local_got_refcounts (ibfd);
4822 if (lgot_refs == NULL)
4823 abort ();
e054468f
AM		 4824 local_plt = (struct plt_entry **)
4825 (lgot_refs + symtab_hdr->sh_info);
4826 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM		 4827 tls_mask = &lgot_masks[r_symndx];
4828 got_count = &lgot_refs[r_symndx];
4829 }
25dbc73a 4830
b7fcf6f6
AM		 4831 if (tls_set == 0)
4832 {
4833 /* We managed to get rid of a got entry. */
4834 if (*got_count > 0)
4835 *got_count -= 1;
4836 }
25dbc73a 4837
b7fcf6f6
AM		 4838 *tls_mask |= tls_set;
4839 *tls_mask &= ~tls_clear;
4840 }
25dbc73a 4841
b7fcf6f6
AM		 4842 if (elf_section_data (sec)->relocs != relstart)
4843 free (relstart);
4844 }
4845
4846 if (locsyms != NULL
4847 && (symtab_hdr->contents != (unsigned char *) locsyms))
4848 {
4849 if (!info->keep_memory)
4850 free (locsyms);
4851 else
4852 symtab_hdr->contents = (unsigned char *) locsyms;
4853 }
4854 }
25dbc73a
AM		 4855 return TRUE;
4856}
4857\f
625af618
AM		 4858/* Return true if we have dynamic relocs that apply to read-only sections. */
4859
4860static bfd_boolean
4861readonly_dynrelocs (struct elf_link_hash_entry *h)
4862{
6061a67d 4863 struct elf_dyn_relocs *p;
625af618
AM		 4864
4865 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
4866 {
4867 asection *s = p->sec->output_section;
4868
4869 if (s != NULL
4870 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
4871 == (SEC_READONLY | SEC_ALLOC)))
4872 return TRUE;
4873 }
4874 return FALSE;
4875}
4876
25dbc73a
AM		 4877/* Adjust a symbol defined by a dynamic object and referenced by a
4878 regular object. The current definition is in some section of the
4879 dynamic object, but we're not including those sections. We have to
4880 change the definition to something the rest of the link can
4881 understand. */
7fce784e 4882
25dbc73a
AM		 4883static bfd_boolean
4884ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4885 struct elf_link_hash_entry *h)
4886{
4887 struct ppc_elf_link_hash_table *htab;
4888 asection *s;
7fce784e 4889
25dbc73a
AM		 4890#ifdef DEBUG
4891 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
4892 h->root.root.string);
4893#endif
252b5132 4894
25dbc73a
AM		 4895 /* Make sure we know what is going on here. */
4896 htab = ppc_elf_hash_table (info);
4897 BFD_ASSERT (htab->elf.dynobj != NULL
4898 && (h->needs_plt
91e21fb7 4899 || h->type == STT_GNU_IFUNC
25dbc73a
AM		 4900 || h->u.weakdef != NULL
4901 || (h->def_dynamic
4902 && h->ref_regular
4903 && !h->def_regular)));
252b5132 4904
25dbc73a
AM		 4905 /* Deal with function syms. */
4906 if (h->type == STT_FUNC
e054468f 4907 || h->type == STT_GNU_IFUNC
25dbc73a
AM		 4908 || h->needs_plt)
4909 {
4910 /* Clear procedure linkage table information for any symbol that
4911 won't need a .plt entry. */
a6aa5195
AM		 4912 struct plt_entry *ent;
4913 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4914 if (ent->plt.refcount > 0)
4915 break;
4916 if (ent == NULL
e054468f
AM		 4917 || (h->type != STT_GNU_IFUNC
4918 && (SYMBOL_CALLS_LOCAL (info, h)
4919 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4920 && h->root.type == bfd_link_hash_undefweak))))
252b5132 4921 {
25dbc73a 4922 /* A PLT entry is not required/allowed when:
252b5132 4923
25dbc73a
AM		 4924 1. We are not using ld.so; because then the PLT entry
4925 can't be set up, so we can't use one. In this case,
4926 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 4927
25dbc73a
AM		 4928 2. GC has rendered the entry unused.
4929
4930 3. We know for certain that a call to this symbol
4931 will go to this object, or will remain undefined. */
a6aa5195 4932 h->plt.plist = NULL;
25dbc73a
AM		 4933 h->needs_plt = 0;
4934 }
625af618
AM		 4935 else
4936 {
25f23106
AM		 4937 /* After adjust_dynamic_symbol, non_got_ref set in the
4938 non-shared case means that we have allocated space in
4939 .dynbss for the symbol and thus dyn_relocs for this
4940 symbol should be discarded.
625af618
AM		 4941 If we get here we know we are making a PLT entry for this
4942 symbol, and in an executable we'd normally resolve
4943 relocations against this symbol to the PLT entry. Allow
4944 dynamic relocs if the reference is weak, and the dynamic
4945 relocs will not cause text relocation. */
4946 if (!h->ref_regular_nonweak
4947 && h->non_got_ref
25f23106 4948 && h->type != STT_GNU_IFUNC
625af618
AM		 4949 && !htab->is_vxworks
4950 && !ppc_elf_hash_entry (h)->has_sda_refs
4951 && !readonly_dynrelocs (h))
4952 h->non_got_ref = 0;
4953 }
25dbc73a 4954 return TRUE;
252b5132 4955 }
25dbc73a 4956 else
a6aa5195 4957 h->plt.plist = NULL;
252b5132 4958
25dbc73a
AM		 4959 /* If this is a weak symbol, and there is a real definition, the
4960 processor independent code will have arranged for us to see the
4961 real definition first, and we can just use the same value. */
4962 if (h->u.weakdef != NULL)
252b5132 4963 {
25dbc73a
AM		 4964 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
4965 || h->u.weakdef->root.type == bfd_link_hash_defweak);
4966 h->root.u.def.section = h->u.weakdef->root.u.def.section;
4967 h->root.u.def.value = h->u.weakdef->root.u.def.value;
4968 if (ELIMINATE_COPY_RELOCS)
4969 h->non_got_ref = h->u.weakdef->non_got_ref;
4970 return TRUE;
4971 }
dc810e39 4972
25dbc73a
AM		 4973 /* This is a reference to a symbol defined by a dynamic object which
4974 is not a function. */
252b5132 4975
25dbc73a
AM		 4976 /* If we are creating a shared library, we must presume that the
4977 only references to the symbol are via the global offset table.
4978 For such cases we need not do anything here; the relocations will
4979 be handled correctly by relocate_section. */
4980 if (info->shared)
4981 return TRUE;
252b5132 4982
25dbc73a
AM		 4983 /* If there are no references to this symbol that do not use the
4984 GOT, we don't need to generate a copy reloc. */
4985 if (!h->non_got_ref)
4986 return TRUE;
4987
cfd2c773
NS		 4988 /* If we didn't find any dynamic relocs in read-only sections, then
4989 we'll be keeping the dynamic relocs and avoiding the copy reloc.
4990 We can't do this if there are any small data relocations. This
4991 doesn't work on VxWorks, where we can not have dynamic
4992 relocations (other than copy and jump slot relocations) in an
4993 executable. */
4dc4a9a5 4994 if (ELIMINATE_COPY_RELOCS
cfd2c773 4995 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM		 4996 && !htab->is_vxworks
4997 && !h->def_regular
4998 && !readonly_dynrelocs (h))
25dbc73a 4999 {
625af618
AM		 5000 h->non_got_ref = 0;
5001 return TRUE;
252b5132
RH		 5002 }
5003
909272ee
AM		 5004 if (h->size == 0)
5005 {
25f53a85
AM		 5006 info->callbacks->einfo (_("dynamic variable `%s' is zero size\n"),
5007 h->root.root.string);
909272ee
AM		 5008 return TRUE;
5009 }
5010
25dbc73a
AM		 5011 /* We must allocate the symbol in our .dynbss section, which will
5012 become part of the .bss section of the executable. There will be
5013 an entry for this symbol in the .dynsym section. The dynamic
5014 object will contain position independent code, so all references
5015 from the dynamic object to this symbol will go through the global
5016 offset table. The dynamic linker will use the .dynsym entry to
5017 determine the address it must put in the global offset table, so
5018 both the dynamic object and the regular object will refer to the
5019 same memory location for the variable.
5020
4dc4a9a5
DJ		 5021 Of course, if the symbol is referenced using SDAREL relocs, we
5022 must instead allocate it in .sbss. */
25dbc73a 5023
4dc4a9a5 5024 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 5025 s = htab->dynsbss;
5026 else
5027 s = htab->dynbss;
5028 BFD_ASSERT (s != NULL);
5029
5030 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5031 copy the initial value out of the dynamic object and into the
5032 runtime process image. We need to remember the offset into the
5033 .rela.bss section we are going to use. */
5034 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5035 {
5036 asection *srel;
5037
4dc4a9a5 5038 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 5039 srel = htab->relsbss;
5040 else
5041 srel = htab->relbss;
5042 BFD_ASSERT (srel != NULL);
5043 srel->size += sizeof (Elf32_External_Rela);
5044 h->needs_copy = 1;
5045 }
7619e7c7 5046
027297b7 5047 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM		 5048}
5049\f
ac39eb42
AM		 5050/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5051 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5052 specifying the addend on the plt relocation. For -fpic code, the sym
5053 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5054 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM		 5055
5056static bfd_boolean
5057add_stub_sym (struct plt_entry *ent,
5058 struct elf_link_hash_entry *h,
ac39eb42 5059 struct bfd_link_info *info)
0ba07910
AM		 5060{
5061 struct elf_link_hash_entry *sh;
5062 size_t len1, len2, len3;
5063 char *name;
ac39eb42
AM		 5064 const char *stub;
5065 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5066
a877a2b6 5067 if (info->shared)
ac39eb42
AM		 5068 stub = ".plt_pic32.";
5069 else
5070 stub = ".plt_call32.";
0ba07910
AM		 5071
5072 len1 = strlen (h->root.root.string);
ac39eb42 5073 len2 = strlen (stub);
0ba07910
AM		 5074 len3 = 0;
5075 if (ent->sec)
5076 len3 = strlen (ent->sec->name);
ac39eb42 5077 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM		 5078 if (name == NULL)
5079 return FALSE;
5080 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5081 if (ent->sec)
5082 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM		 5083 memcpy (name + 8 + len3, stub, len2);
5084 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM		 5085 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5086 if (sh == NULL)
5087 return FALSE;
5088 if (sh->root.type == bfd_link_hash_new)
5089 {
5090 sh->root.type = bfd_link_hash_defined;
5091 sh->root.u.def.section = htab->glink;
5092 sh->root.u.def.value = ent->glink_offset;
5093 sh->ref_regular = 1;
5094 sh->def_regular = 1;
5095 sh->ref_regular_nonweak = 1;
5096 sh->forced_local = 1;
5097 sh->non_elf = 0;
5098 }
5099 return TRUE;
5100}
5101
3b36f7e6
AM		 5102/* Allocate NEED contiguous space in .got, and return the offset.
5103 Handles allocation of the got header when crossing 32k. */
5104
5105static bfd_vma
5106allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5107{
5108 bfd_vma where;
4a3dc543 5109 unsigned int max_before_header;
3b36f7e6 5110
4a3dc543 5111 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB		 5112 {
5113 where = htab->got->size;
5114 htab->got->size += need;
5115 }
3b36f7e6
AM		 5116 else
5117 {
4a3dc543
RS		 5118 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5119 if (need <= htab->got_gap)
3b36f7e6 5120 {
4a3dc543
RS		 5121 where = max_before_header - htab->got_gap;
5122 htab->got_gap -= need;
5123 }
5124 else
5125 {
5126 if (htab->got->size + need > max_before_header
5127 && htab->got->size <= max_before_header)
5128 {
5129 htab->got_gap = max_before_header - htab->got->size;
5130 htab->got->size = max_before_header + htab->got_header_size;
5131 }
5132 where = htab->got->size;
5133 htab->got->size += need;
3b36f7e6 5134 }
3b36f7e6
AM		 5135 }
5136 return where;
5137}
5138
25dbc73a 5139/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5140
b34976b6 5141static bfd_boolean
25dbc73a 5142allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5143{
25dbc73a
AM		 5144 struct bfd_link_info *info = inf;
5145 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5146 struct ppc_elf_link_hash_table *htab;
6061a67d 5147 struct elf_dyn_relocs *p;
252b5132 5148
25dbc73a 5149 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5150 return TRUE;
252b5132 5151
7619e7c7 5152 htab = ppc_elf_hash_table (info);
e054468f
AM		 5153 if (htab->elf.dynamic_sections_created
5154 || h->type == STT_GNU_IFUNC)
252b5132 5155 {
a6aa5195
AM		 5156 struct plt_entry *ent;
5157 bfd_boolean doneone = FALSE;
28e99bb6 5158 bfd_vma plt_offset = 0, glink_offset = 0;
e054468f 5159 bfd_boolean dyn;
28e99bb6 5160
a6aa5195
AM		 5161 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5162 if (ent->plt.refcount > 0)
5163 {
5164 /* Make sure this symbol is output as a dynamic symbol. */
5165 if (h->dynindx == -1
e054468f
AM		 5166 && !h->forced_local
5167 && !h->def_regular
5168 && htab->elf.dynamic_sections_created)
a6aa5195
AM		 5169 {
5170 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5171 return FALSE;
5172 }
252b5132 5173
e054468f 5174 dyn = htab->elf.dynamic_sections_created;
a6aa5195 5175 if (info->shared
e054468f
AM		 5176 || h->type == STT_GNU_IFUNC
5177 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
a6aa5195
AM		 5178 {
5179 asection *s = htab->plt;
25f23106 5180 if (!dyn || h->dynindx == -1)
e054468f 5181 s = htab->iplt;
7619e7c7 5182
25f23106 5183 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
a6aa5195 5184 {
a6aa5195 5185 if (!doneone)
28e99bb6
AM		 5186 {
5187 plt_offset = s->size;
5188 s->size += 4;
5189 }
5190 ent->plt.offset = plt_offset;
d7128ce4 5191
a6aa5195 5192 s = htab->glink;
a877a2b6 5193 if (!doneone || info->shared)
28e99bb6
AM		 5194 {
5195 glink_offset = s->size;
5196 s->size += GLINK_ENTRY_SIZE;
a7f2871e
AM		 5197 if (h == htab->tls_get_addr
5198 && !htab->no_tls_get_addr_opt)
5199 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
28e99bb6
AM		 5200 }
5201 if (!doneone
5202 && !info->shared
625af618 5203 && h->def_dynamic
a6aa5195
AM		 5204 && !h->def_regular)
5205 {
5206 h->root.u.def.section = s;
28e99bb6 5207 h->root.u.def.value = glink_offset;
a6aa5195 5208 }
28e99bb6 5209 ent->glink_offset = glink_offset;
0ba07910
AM		 5210
5211 if (htab->emit_stub_syms
ac39eb42 5212 && !add_stub_sym (ent, h, info))
0ba07910 5213 return FALSE;
a6aa5195
AM		 5214 }
5215 else
5216 {
a6aa5195
AM		 5217 if (!doneone)
5218 {
28e99bb6
AM		 5219 /* If this is the first .plt entry, make room
5220 for the special first entry. */
5221 if (s->size == 0)
9d8504b1 5222 s->size += htab->plt_initial_entry_size;
28e99bb6
AM		 5223
5224 /* The PowerPC PLT is actually composed of two
5225 parts, the first part is 2 words (for a load
5226 and a jump), and then there is a remaining
5227 word available at the end. */
9d8504b1
PB		 5228 plt_offset = (htab->plt_initial_entry_size
5229 + (htab->plt_slot_size
5230 * ((s->size
5231 - htab->plt_initial_entry_size)
5232 / htab->plt_entry_size)));
28e99bb6
AM		 5233
5234 /* If this symbol is not defined in a regular
5235 file, and we are not generating a shared
5b914448 5236 library, then set the symbol to this location
de972ffa
AM		 5237 in the .plt. This is to avoid text
5238 relocations, and is required to make
28e99bb6
AM		 5239 function pointers compare as equal between
5240 the normal executable and the shared library. */
5241 if (! info->shared
625af618 5242 && h->def_dynamic
28e99bb6
AM		 5243 && !h->def_regular)
5244 {
5245 h->root.u.def.section = s;
5246 h->root.u.def.value = plt_offset;
5247 }
5248
9d8504b1
PB		 5249 /* Make room for this entry. */
5250 s->size += htab->plt_entry_size;
5251 /* After the 8192nd entry, room for two entries
5252 is allocated. */
4a3dc543 5253 if (htab->plt_type == PLT_OLD
9d8504b1
PB		 5254 && (s->size - htab->plt_initial_entry_size)
5255 / htab->plt_entry_size
5256 > PLT_NUM_SINGLE_ENTRIES)
5257 s->size += htab->plt_entry_size;
a6aa5195 5258 }
28e99bb6 5259 ent->plt.offset = plt_offset;
a6aa5195 5260 }
25dbc73a 5261
a6aa5195
AM		 5262 /* We also need to make an entry in the .rela.plt section. */
5263 if (!doneone)
5264 {
25f23106
AM		 5265 if (!htab->elf.dynamic_sections_created
5266 || h->dynindx == -1)
e054468f
AM		 5267 htab->reliplt->size += sizeof (Elf32_External_Rela);
5268 else
9d8504b1 5269 {
e054468f
AM		 5270 htab->relplt->size += sizeof (Elf32_External_Rela);
5271
5272 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5273 {
e054468f
AM		 5274 /* Allocate space for the unloaded relocations. */
5275 if (!info->shared
5276 && htab->elf.dynamic_sections_created)
9d8504b1 5277 {
e054468f
AM		 5278 if (ent->plt.offset
5279 == (bfd_vma) htab->plt_initial_entry_size)
5280 {
5281 htab->srelplt2->size
5282 += (sizeof (Elf32_External_Rela)
5283 * VXWORKS_PLTRESOLVE_RELOCS);
5284 }
5285
9d8504b1 5286 htab->srelplt2->size
e054468f
AM		 5287 += (sizeof (Elf32_External_Rela)
5288 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
9d8504b1
PB		 5289 }
5290
e054468f
AM		 5291 /* Every PLT entry has an associated GOT entry in
5292 .got.plt. */
5293 htab->sgotplt->size += 4;
9d8504b1 5294 }
9d8504b1 5295 }
a6aa5195
AM		 5296 doneone = TRUE;
5297 }
5298 }
5299 else
5300 ent->plt.offset = (bfd_vma) -1;
a6aa5195 5301 }
2ce859a1
AM		 5302 else
5303 ent->plt.offset = (bfd_vma) -1;
5304
5305 if (!doneone)
5306 {
5307 h->plt.plist = NULL;
5308 h->needs_plt = 0;
5309 }
25dbc73a
AM		 5310 }
5311 else
5312 {
a6aa5195 5313 h->plt.plist = NULL;
25dbc73a
AM		 5314 h->needs_plt = 0;
5315 }
5316
5317 eh = (struct ppc_elf_link_hash_entry *) h;
5318 if (eh->elf.got.refcount > 0)
5319 {
d6e14abc
AM		 5320 bfd_boolean dyn;
5321 unsigned int need;
5322
25dbc73a
AM		 5323 /* Make sure this symbol is output as a dynamic symbol. */
5324 if (eh->elf.dynindx == -1
b099ab9f 5325 && !eh->elf.forced_local
25f23106 5326 && eh->elf.type != STT_GNU_IFUNC
b099ab9f 5327 && htab->elf.dynamic_sections_created)
25dbc73a
AM		 5328 {
5329 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 5330 return FALSE;
25dbc73a 5331 }
252b5132 5332
d6e14abc
AM		 5333 need = 0;
5334 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5335 {
d6e14abc 5336 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5337 {
d6e14abc
AM		 5338 if (!eh->elf.def_dynamic)
5339 /* We'll just use htab->tlsld_got.offset. This should
5340 always be the case. It's a little odd if we have
5341 a local dynamic reloc against a non-local symbol. */
5342 htab->tlsld_got.refcount += 1;
5343 else
3b36f7e6 5344 need += 8;
252b5132 5345 }
d6e14abc
AM		 5346 if ((eh->tls_mask & TLS_GD) != 0)
5347 need += 8;
5348 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5349 need += 4;
5350 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5351 need += 4;
d6e14abc
AM		 5352 }
5353 else
5354 need += 4;
5355 if (need == 0)
5356 eh->elf.got.offset = (bfd_vma) -1;
5357 else
5358 {
3b36f7e6 5359 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM		 5360 dyn = htab->elf.dynamic_sections_created;
5361 if ((info->shared
5362 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5363 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5364 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 5365 {
91e21fb7 5366 asection *rsec = htab->relgot;
3b36f7e6
AM		 5367 /* All the entries we allocated need relocs.
5368 Except LD only needs one. */
d6e14abc
AM		 5369 if ((eh->tls_mask & TLS_LD) != 0
5370 && eh->elf.def_dynamic)
3b36f7e6 5371 need -= 4;
25f23106 5372 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 5373 }
25dbc73a
AM		 5374 }
5375 }
5376 else
5377 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5378
b099ab9f 5379 if (eh->dyn_relocs == NULL
de972ffa 5380 || !htab->elf.dynamic_sections_created)
25dbc73a 5381 return TRUE;
252b5132 5382
25dbc73a
AM		 5383 /* In the shared -Bsymbolic case, discard space allocated for
5384 dynamic pc-relative relocs against symbols which turn out to be
5385 defined in regular objects. For the normal shared case, discard
5386 space for relocs that have become local due to symbol visibility
5387 changes. */
5388
5389 if (info->shared)
5390 {
5391 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5392 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM		 5393 generated via assembly. We want calls to protected symbols to
5394 resolve directly to the function rather than going via the plt.
5395 If people want function pointer comparisons to work as expected
5396 then they should avoid writing weird assembly. */
5397 if (SYMBOL_CALLS_LOCAL (info, h))
5398 {
6061a67d 5399 struct elf_dyn_relocs **pp;
25dbc73a
AM		 5400
5401 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5402 {
25dbc73a
AM		 5403 p->count -= p->pc_count;
5404 p->pc_count = 0;
5405 if (p->count == 0)
5406 *pp = p->next;
5407 else
5408 pp = &p->next;
252b5132 5409 }
25dbc73a 5410 }
252b5132 5411
3348747a
NS		 5412 if (htab->is_vxworks)
5413 {
6061a67d 5414 struct elf_dyn_relocs **pp;
3348747a
NS		 5415
5416 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5417 {
5418 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5419 *pp = p->next;
5420 else
5421 pp = &p->next;
5422 }
5423 }
5424
89200bf8
AM		 5425 /* Discard relocs on undefined symbols that must be local. */
5426 if (eh->dyn_relocs != NULL
5427 && h->root.type == bfd_link_hash_undefined
5428 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5429 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5430 eh->dyn_relocs = NULL;
5431
25dbc73a
AM		 5432 /* Also discard relocs on undefined weak syms with non-default
5433 visibility. */
cab87ef9
AM		 5434 if (eh->dyn_relocs != NULL
5435 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 5436 {
dfbb6ac9
AM		 5437 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5438 eh->dyn_relocs = NULL;
5439
5440 /* Make sure undefined weak symbols are output as a dynamic
5441 symbol in PIEs. */
5442 else if (h->dynindx == -1
e054468f
AM		 5443 && !h->forced_local
5444 && !h->def_regular)
dfbb6ac9
AM		 5445 {
5446 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5447 return FALSE;
5448 }
25dbc73a
AM		 5449 }
5450 }
5451 else if (ELIMINATE_COPY_RELOCS)
5452 {
5453 /* For the non-shared case, discard space for relocs against
5454 symbols which turn out to need copy relocs or are not
5455 dynamic. */
7619e7c7 5456
25dbc73a 5457 if (!h->non_got_ref
25dbc73a
AM		 5458 && !h->def_regular)
5459 {
5460 /* Make sure this symbol is output as a dynamic symbol.
5461 Undefined weak syms won't yet be marked as dynamic. */
5462 if (h->dynindx == -1
25f23106 5463 && !h->forced_local)
25dbc73a
AM		 5464 {
5465 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5466 return FALSE;
5467 }
7619e7c7 5468
25dbc73a
AM		 5469 /* If that succeeded, we know we'll be keeping all the
5470 relocs. */
5471 if (h->dynindx != -1)
5472 goto keep;
5473 }
252b5132 5474
25dbc73a 5475 eh->dyn_relocs = NULL;
252b5132 5476
25dbc73a
AM		 5477 keep: ;
5478 }
252b5132 5479
25dbc73a
AM		 5480 /* Finally, allocate space. */
5481 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5482 {
5483 asection *sreloc = elf_section_data (p->sec)->sreloc;
25f23106
AM		 5484 if (!htab->elf.dynamic_sections_created)
5485 sreloc = htab->reliplt;
25dbc73a
AM		 5486 sreloc->size += p->count * sizeof (Elf32_External_Rela);
5487 }
252b5132 5488
25dbc73a
AM		 5489 return TRUE;
5490}
7619e7c7 5491
625af618
AM		 5492/* Set DF_TEXTREL if we find any dynamic relocs that apply to
5493 read-only sections. */
7619e7c7 5494
25dbc73a 5495static bfd_boolean
625af618 5496maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 5497{
25dbc73a
AM		 5498 if (h->root.type == bfd_link_hash_indirect)
5499 return TRUE;
252b5132 5500
625af618 5501 if (readonly_dynrelocs (h))
25dbc73a 5502 {
625af618 5503 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 5504
625af618
AM		 5505 /* Not an error, just cut short the traversal. */
5506 return FALSE;
25dbc73a
AM		 5507 }
5508 return TRUE;
5509}
5510
5511/* Set the sizes of the dynamic sections. */
5512
5513static bfd_boolean
5514ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5515 struct bfd_link_info *info)
5516{
5517 struct ppc_elf_link_hash_table *htab;
5518 asection *s;
5519 bfd_boolean relocs;
5520 bfd *ibfd;
7fce784e 5521
252b5132 5522#ifdef DEBUG
25dbc73a 5523 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 5524#endif
252b5132 5525
25dbc73a
AM		 5526 htab = ppc_elf_hash_table (info);
5527 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 5528
25dbc73a
AM		 5529 if (elf_hash_table (info)->dynamic_sections_created)
5530 {
5531 /* Set the contents of the .interp section to the interpreter. */
5532 if (info->executable)
5533 {
5534 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
5535 BFD_ASSERT (s != NULL);
5536 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5537 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5538 }
5539 }
252b5132 5540
4a3dc543 5541 if (htab->plt_type == PLT_OLD)
d7128ce4 5542 htab->got_header_size = 16;
4a3dc543 5543 else if (htab->plt_type == PLT_NEW)
d7128ce4 5544 htab->got_header_size = 12;
252b5132 5545
25dbc73a
AM		 5546 /* Set up .got offsets for local syms, and space for local dynamic
5547 relocs. */
5548 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5549 {
5550 bfd_signed_vma *local_got;
5551 bfd_signed_vma *end_local_got;
e054468f
AM		 5552 struct plt_entry **local_plt;
5553 struct plt_entry **end_local_plt;
25dbc73a
AM		 5554 char *lgot_masks;
5555 bfd_size_type locsymcount;
5556 Elf_Internal_Shdr *symtab_hdr;
7fce784e 5557
0c8d6e5c 5558 if (!is_ppc_elf (ibfd))
25dbc73a 5559 continue;
7fce784e 5560
25dbc73a
AM		 5561 for (s = ibfd->sections; s != NULL; s = s->next)
5562 {
6061a67d 5563 struct elf_dyn_relocs *p;
252b5132 5564
6061a67d 5565 for (p = ((struct elf_dyn_relocs *)
25dbc73a
AM		 5566 elf_section_data (s)->local_dynrel);
5567 p != NULL;
5568 p = p->next)
5569 {
5570 if (!bfd_is_abs_section (p->sec)
5571 && bfd_is_abs_section (p->sec->output_section))
5572 {
5573 /* Input section has been discarded, either because
5574 it is a copy of a linkonce section or due to
5575 linker script /DISCARD/, so we'll be discarding
5576 the relocs too. */
7fce784e 5577 }
3348747a
NS		 5578 else if (htab->is_vxworks
5579 && strcmp (p->sec->output_section->name,
5580 ".tls_vars") == 0)
5581 {
5582 /* Relocations in vxworks .tls_vars sections are
5583 handled specially by the loader. */
5584 }
25dbc73a 5585 else if (p->count != 0)
7fce784e 5586 {
25f23106
AM		 5587 asection *sreloc = elf_section_data (p->sec)->sreloc;
5588 if (!htab->elf.dynamic_sections_created)
5589 sreloc = htab->reliplt;
5590 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM		 5591 if ((p->sec->output_section->flags
5592 & (SEC_READONLY | SEC_ALLOC))
5593 == (SEC_READONLY | SEC_ALLOC))
5594 info->flags |= DF_TEXTREL;
7fce784e 5595 }
252b5132 5596 }
252b5132 5597 }
252b5132 5598
25dbc73a
AM		 5599 local_got = elf_local_got_refcounts (ibfd);
5600 if (!local_got)
5601 continue;
252b5132 5602
0ffa91dd 5603 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM		 5604 locsymcount = symtab_hdr->sh_info;
5605 end_local_got = local_got + locsymcount;
e054468f
AM		 5606 local_plt = (struct plt_entry **) end_local_got;
5607 end_local_plt = local_plt + locsymcount;
5608 lgot_masks = (char *) end_local_plt;
91d6fa6a 5609
25dbc73a
AM		 5610 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
5611 if (*local_got > 0)
5612 {
d6e14abc
AM		 5613 unsigned int need = 0;
5614 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 5615 {
d6e14abc
AM		 5616 if ((*lgot_masks & TLS_GD) != 0)
5617 need += 8;
5618 if ((*lgot_masks & TLS_LD) != 0)
5619 htab->tlsld_got.refcount += 1;
5620 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
5621 need += 4;
5622 if ((*lgot_masks & TLS_DTPREL) != 0)
5623 need += 4;
25dbc73a 5624 }
d6e14abc
AM		 5625 else
5626 need += 4;
5627 if (need == 0)
5628 *local_got = (bfd_vma) -1;
25dbc73a
AM		 5629 else
5630 {
3b36f7e6 5631 *local_got = allocate_got (htab, need);
25dbc73a 5632 if (info->shared)
3b36f7e6
AM		 5633 htab->relgot->size += (need
5634 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM		 5635 }
5636 }
5637 else
5638 *local_got = (bfd_vma) -1;
e054468f
AM		 5639
5640 if (htab->is_vxworks)
5641 continue;
5642
5643 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
5644 for (; local_plt < end_local_plt; ++local_plt)
5645 {
5646 struct plt_entry *ent;
5647 bfd_boolean doneone = FALSE;
5648 bfd_vma plt_offset = 0, glink_offset = 0;
5649
5650 for (ent = *local_plt; ent != NULL; ent = ent->next)
5651 if (ent->plt.refcount > 0)
5652 {
91d6fa6a 5653 s = htab->iplt;
e054468f
AM		 5654
5655 if (!doneone)
5656 {
5657 plt_offset = s->size;
5658 s->size += 4;
5659 }
5660 ent->plt.offset = plt_offset;
5661
5662 s = htab->glink;
a877a2b6 5663 if (!doneone || info->shared)
e054468f
AM		 5664 {
5665 glink_offset = s->size;
5666 s->size += GLINK_ENTRY_SIZE;
5667 }
5668 ent->glink_offset = glink_offset;
5669
5670 if (!doneone)
5671 {
25f23106 5672 htab->reliplt->size += sizeof (Elf32_External_Rela);
e054468f
AM		 5673 doneone = TRUE;
5674 }
5675 }
5676 else
5677 ent->plt.offset = (bfd_vma) -1;
5678 }
25dbc73a 5679 }
252b5132 5680
b7fcf6f6
AM		 5681 /* Allocate space for global sym dynamic relocs. */
5682 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
5683
3b36f7e6
AM		 5684 if (htab->tlsld_got.refcount > 0)
5685 {
5686 htab->tlsld_got.offset = allocate_got (htab, 8);
5687 if (info->shared)
5688 htab->relgot->size += sizeof (Elf32_External_Rela);
5689 }
5690 else
5691 htab->tlsld_got.offset = (bfd_vma) -1;
5692
4a3dc543 5693 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM		 5694 {
5695 unsigned int g_o_t = 32768;
5696
4d962050
AM		 5697 /* If we haven't allocated the header, do so now. When we get here,
5698 for old plt/got the got size will be 0 to 32764 (not allocated),
5699 or 32780 to 65536 (header allocated). For new plt/got, the
5700 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM		 5701 if (htab->got->size <= 32768)
5702 {
5703 g_o_t = htab->got->size;
4a3dc543 5704 if (htab->plt_type == PLT_OLD)
4d962050 5705 g_o_t += 4;
3b36f7e6
AM		 5706 htab->got->size += htab->got_header_size;
5707 }
3b36f7e6
AM		 5708
5709 htab->elf.hgot->root.u.def.value = g_o_t;
5710 }
bd6c6e2b
AM		 5711 if (info->shared)
5712 {
5713 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
5714 if (sda != NULL
5715 && !(sda->root.type == bfd_link_hash_defined
5716 || sda->root.type == bfd_link_hash_defweak))
5717 {
5718 sda->root.type = bfd_link_hash_defined;
5719 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
5720 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
5721 }
5722 }
3b36f7e6 5723
e054468f
AM		 5724 if (htab->glink != NULL
5725 && htab->glink->size != 0
5726 && htab->elf.dynamic_sections_created)
d7128ce4
AM		 5727 {
5728 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM		 5729 /* Space for the branch table. */
5730 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
5731 /* Pad out to align the start of PLTresolve. */
5732 htab->glink->size += -htab->glink->size & 15;
d7128ce4 5733 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM		 5734
5735 if (htab->emit_stub_syms)
5736 {
5737 struct elf_link_hash_entry *sh;
5738 sh = elf_link_hash_lookup (&htab->elf, "__glink",
5739 TRUE, FALSE, FALSE);
5740 if (sh == NULL)
5741 return FALSE;
5742 if (sh->root.type == bfd_link_hash_new)
5743 {
5744 sh->root.type = bfd_link_hash_defined;
5745 sh->root.u.def.section = htab->glink;
5746 sh->root.u.def.value = htab->glink_pltresolve;
5747 sh->ref_regular = 1;
5748 sh->def_regular = 1;
5749 sh->ref_regular_nonweak = 1;
5750 sh->forced_local = 1;
5751 sh->non_elf = 0;
5752 }
5753 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
5754 TRUE, FALSE, FALSE);
5755 if (sh == NULL)
5756 return FALSE;
5757 if (sh->root.type == bfd_link_hash_new)
5758 {
5759 sh->root.type = bfd_link_hash_defined;
5760 sh->root.u.def.section = htab->glink;
5761 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
5762 sh->ref_regular = 1;
5763 sh->def_regular = 1;
5764 sh->ref_regular_nonweak = 1;
5765 sh->forced_local = 1;
5766 sh->non_elf = 0;
5767 }
5768 }
d7128ce4
AM		 5769 }
5770
25dbc73a
AM		 5771 /* We've now determined the sizes of the various dynamic sections.
5772 Allocate memory for them. */
5773 relocs = FALSE;
5774 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 5775 {
9d8504b1
PB		 5776 bfd_boolean strip_section = TRUE;
5777
25dbc73a
AM		 5778 if ((s->flags & SEC_LINKER_CREATED) == 0)
5779 continue;
252b5132 5780
25dbc73a 5781 if (s == htab->plt
e054468f 5782 || s == htab->got)
25dbc73a 5783 {
9d8504b1
PB		 5784 /* We'd like to strip these sections if they aren't needed, but if
5785 we've exported dynamic symbols from them we must leave them.
5786 It's too late to tell BFD to get rid of the symbols. */
e054468f 5787 if (htab->elf.hplt != NULL)
9d8504b1 5788 strip_section = FALSE;
25dbc73a
AM		 5789 /* Strip this section if we don't need it; see the
5790 comment below. */
5791 }
e054468f
AM		 5792 else if (s == htab->iplt
5793 || s == htab->glink
5794 || s == htab->sgotplt
5795 || s == htab->sbss
5796 || s == htab->dynbss
5797 || s == htab->dynsbss
5798 || s == htab->sdata[0].section
c9a2f333 5799 || s == htab->sdata[1].section)
25dbc73a 5800 {
c9a2f333 5801 /* Strip these too. */
25dbc73a 5802 }
0112cd26 5803 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
25dbc73a 5804 {
c456f082 5805 if (s->size != 0)
25dbc73a
AM		 5806 {
5807 /* Remember whether there are any relocation sections. */
5808 relocs = TRUE;
252b5132 5809
25dbc73a
AM		 5810 /* We use the reloc_count field as a counter if we need
5811 to copy relocs into the output file. */
5812 s->reloc_count = 0;
252b5132
RH		 5813 }
5814 }
25dbc73a
AM		 5815 else
5816 {
5817 /* It's not one of our sections, so don't allocate space. */
5818 continue;
5819 }
252b5132 5820
9d8504b1 5821 if (s->size == 0 && strip_section)
25dbc73a 5822 {
c456f082
AM		 5823 /* If we don't need this section, strip it from the
5824 output file. This is mostly to handle .rela.bss and
5825 .rela.plt. We must create both sections in
5826 create_dynamic_sections, because they must be created
5827 before the linker maps input sections to output
5828 sections. The linker does that before
5829 adjust_dynamic_symbol is called, and it is that
5830 function which decides whether anything needs to go
5831 into these sections. */
8423293d 5832 s->flags |= SEC_EXCLUDE;
25dbc73a
AM		 5833 continue;
5834 }
7fce784e 5835
d7128ce4 5836 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM		 5837 continue;
5838
25dbc73a
AM		 5839 /* Allocate memory for the section contents. */
5840 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
5841 if (s->contents == NULL)
5842 return FALSE;
5843 }
252b5132 5844
25dbc73a 5845 if (htab->elf.dynamic_sections_created)
7619e7c7 5846 {
25dbc73a
AM		 5847 /* Add some entries to the .dynamic section. We fill in the
5848 values later, in ppc_elf_finish_dynamic_sections, but we
5849 must add the entries now so that we get the correct size for
5850 the .dynamic section. The DT_DEBUG entry is filled in by the
5851 dynamic linker and used by the debugger. */
5852#define add_dynamic_entry(TAG, VAL) \
5853 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 5854
25dbc73a 5855 if (info->executable)
7619e7c7 5856 {
25dbc73a
AM		 5857 if (!add_dynamic_entry (DT_DEBUG, 0))
5858 return FALSE;
7619e7c7
AM		 5859 }
5860
25dbc73a 5861 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 5862 {
25dbc73a
AM		 5863 if (!add_dynamic_entry (DT_PLTGOT, 0)
5864 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5865 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5866 || !add_dynamic_entry (DT_JMPREL, 0))
5867 return FALSE;
5868 }
7619e7c7 5869
d7128ce4
AM		 5870 if (htab->glink != NULL && htab->glink->size != 0)
5871 {
1fe44d79 5872 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 5873 return FALSE;
a7f2871e
AM		 5874 if (!htab->no_tls_get_addr_opt
5875 && htab->tls_get_addr != NULL
5876 && htab->tls_get_addr->plt.plist != NULL
5877 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
5878 return FALSE;
d7128ce4
AM		 5879 }
5880
25dbc73a
AM		 5881 if (relocs)
5882 {
5883 if (!add_dynamic_entry (DT_RELA, 0)
5884 || !add_dynamic_entry (DT_RELASZ, 0)
5885 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
5886 return FALSE;
5887 }
7619e7c7 5888
25dbc73a
AM		 5889 /* If any dynamic relocs apply to a read-only section, then we
5890 need a DT_TEXTREL entry. */
5891 if ((info->flags & DF_TEXTREL) == 0)
625af618 5892 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 5893 info);
7619e7c7 5894
25dbc73a
AM		 5895 if ((info->flags & DF_TEXTREL) != 0)
5896 {
5897 if (!add_dynamic_entry (DT_TEXTREL, 0))
5898 return FALSE;
7619e7c7 5899 }
7a2b07ff
NS		 5900 if (htab->is_vxworks
5901 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
5902 return FALSE;
5903 }
25dbc73a
AM		 5904#undef add_dynamic_entry
5905
7619e7c7
AM		 5906 return TRUE;
5907}
0eb4a168
AM		 5908
5909/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
5910
5911static bfd_boolean
5912ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
5913{
5914 if (h->plt.plist != NULL
5915 && !h->def_regular
5916 && (!h->pointer_equality_needed
5917 || !h->ref_regular_nonweak))
5918 return FALSE;
5919
5920 return _bfd_elf_hash_symbol (h);
5921}
25dbc73a
AM		 5922\f
5923#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
5924
01017ef8
NS		 5925/* Relaxation trampolines. r12 is available for clobbering (r11, is
5926 used for some functions that are allowed to break the ABI). */
25dbc73a
AM		 5927static const int shared_stub_entry[] =
5928 {
5929 0x7c0802a6, /* mflr 0 */
5930 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS		 5931 0x7d8802a6, /* mflr 12 */
5932 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
5933 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 5934 0x7c0803a6, /* mtlr 0 */
01017ef8 5935 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM		 5936 0x4e800420, /* bctr */
5937 };
5938
5939static const int stub_entry[] =
5940 {
01017ef8
NS		 5941 0x3d800000, /* lis 12,xxx@ha */
5942 0x398c0000, /* addi 12,12,xxx@l */
5943 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM		 5944 0x4e800420, /* bctr */
5945 };
5946
5947static bfd_boolean
5948ppc_elf_relax_section (bfd *abfd,
5949 asection *isec,
5950 struct bfd_link_info *link_info,
5951 bfd_boolean *again)
5952{
5953 struct one_fixup
5954 {
5955 struct one_fixup *next;
5956 asection *tsec;
01017ef8
NS		 5957 /* Final link, can use the symbol offset. For a
5958 relocatable link we use the symbol's index. */
25dbc73a
AM		 5959 bfd_vma toff;
5960 bfd_vma trampoff;
5961 };
7619e7c7 5962
25dbc73a
AM		 5963 Elf_Internal_Shdr *symtab_hdr;
5964 bfd_byte *contents = NULL;
5965 Elf_Internal_Sym *isymbuf = NULL;
5966 Elf_Internal_Rela *internal_relocs = NULL;
5967 Elf_Internal_Rela *irel, *irelend;
5968 struct one_fixup *fixups = NULL;
9bc4e62b 5969 unsigned changes = 0;
d7128ce4 5970 struct ppc_elf_link_hash_table *htab;
25dbc73a 5971 bfd_size_type trampoff;
a6aa5195 5972 asection *got2;
50248c89 5973 bfd_boolean maybe_pasted;
7619e7c7 5974
25dbc73a 5975 *again = FALSE;
7619e7c7 5976
c87b5a93 5977 /* Nothing to do if there are no relocations, and no need to do
a8ad78a7 5978 anything with non-alloc or non-code sections. */
c87b5a93 5979 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 5980 || (isec->flags & SEC_CODE) == 0
c87b5a93
AM		 5981 || (isec->flags & SEC_RELOC) == 0
5982 || isec->reloc_count == 0)
25dbc73a 5983 return TRUE;
7619e7c7 5984
c8a1f254
NS		 5985 /* We cannot represent the required PIC relocs in the output, so don't
5986 do anything. The linker doesn't support mixing -shared and -r
5987 anyway. */
5988 if (link_info->relocatable && link_info->shared)
5989 return TRUE;
5b914448 5990
25dbc73a 5991 trampoff = (isec->size + 3) & (bfd_vma) -4;
50248c89
AM		 5992 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
5993 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 5994 /* Space for a branch around any trampolines. */
50248c89
AM		 5995 if (maybe_pasted)
5996 trampoff += 4;
7619e7c7 5997
0ffa91dd 5998 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 5999
25dbc73a
AM		 6000 /* Get a copy of the native relocations. */
6001 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6002 link_info->keep_memory);
6003 if (internal_relocs == NULL)
6004 goto error_return;
7619e7c7 6005
d7128ce4 6006 htab = ppc_elf_hash_table (link_info);
a6aa5195 6007 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 6008
a6aa5195 6009 irelend = internal_relocs + isec->reloc_count;
25dbc73a 6010 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 6011 {
25dbc73a 6012 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
91d6fa6a 6013 bfd_vma toff, roff;
25dbc73a
AM		 6014 asection *tsec;
6015 struct one_fixup *f;
6016 size_t insn_offset = 0;
6017 bfd_vma max_branch_offset, val;
6018 bfd_byte *hit_addr;
6019 unsigned long t0;
de972ffa 6020 struct elf_link_hash_entry *h;
a9585d22 6021 struct plt_entry **plist;
25dbc73a 6022 unsigned char sym_type;
7619e7c7 6023
25dbc73a
AM		 6024 switch (r_type)
6025 {
6026 case R_PPC_REL24:
6027 case R_PPC_LOCAL24PC:
6028 case R_PPC_PLTREL24:
6029 max_branch_offset = 1 << 25;
6030 break;
7619e7c7 6031
25dbc73a
AM		 6032 case R_PPC_REL14:
6033 case R_PPC_REL14_BRTAKEN:
6034 case R_PPC_REL14_BRNTAKEN:
6035 max_branch_offset = 1 << 15;
6036 break;
7619e7c7 6037
25dbc73a
AM		 6038 default:
6039 continue;
6040 }
7619e7c7 6041
25dbc73a 6042 /* Get the value of the symbol referred to by the reloc. */
de972ffa 6043 h = NULL;
25dbc73a
AM		 6044 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6045 {
6046 /* A local symbol. */
6047 Elf_Internal_Sym *isym;
7fce784e 6048
25dbc73a
AM		 6049 /* Read this BFD's local symbols. */
6050 if (isymbuf == NULL)
6051 {
6052 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6053 if (isymbuf == NULL)
6054 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6055 symtab_hdr->sh_info, 0,
6056 NULL, NULL, NULL);
6057 if (isymbuf == 0)
6058 goto error_return;
6059 }
6060 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6061 if (isym->st_shndx == SHN_UNDEF)
c8a1f254 6062 tsec = bfd_und_section_ptr;
25dbc73a
AM		 6063 else if (isym->st_shndx == SHN_ABS)
6064 tsec = bfd_abs_section_ptr;
6065 else if (isym->st_shndx == SHN_COMMON)
6066 tsec = bfd_com_section_ptr;
6067 else
6068 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 6069
25dbc73a
AM		 6070 toff = isym->st_value;
6071 sym_type = ELF_ST_TYPE (isym->st_info);
6072 }
6073 else
6074 {
6075 /* Global symbol handling. */
6076 unsigned long indx;
7619e7c7 6077
25dbc73a
AM		 6078 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6079 h = elf_sym_hashes (abfd)[indx];
7619e7c7 6080
25dbc73a
AM		 6081 while (h->root.type == bfd_link_hash_indirect
6082 || h->root.type == bfd_link_hash_warning)
6083 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 6084
a9585d22
AM		 6085 if (h->root.type == bfd_link_hash_defined
6086 || h->root.type == bfd_link_hash_defweak)
25dbc73a
AM		 6087 {
6088 tsec = h->root.u.def.section;
6089 toff = h->root.u.def.value;
6090 }
c8a1f254
NS		 6091 else if (h->root.type == bfd_link_hash_undefined
6092 || h->root.type == bfd_link_hash_undefweak)
6093 {
6094 tsec = bfd_und_section_ptr;
01017ef8 6095 toff = link_info->relocatable ? indx : 0;
c8a1f254 6096 }
25dbc73a
AM		 6097 else
6098 continue;
7619e7c7 6099
25dbc73a
AM		 6100 sym_type = h->type;
6101 }
7619e7c7 6102
a9585d22
AM		 6103 /* The condition here under which we call find_plt_ent must
6104 match that in relocate_section. If we call find_plt_ent here
6105 but not in relocate_section, or vice versa, then the branch
6106 destination used here may be incorrect. */
6107 plist = NULL;
6108 if (h != NULL)
de972ffa 6109 {
a9585d22
AM		 6110 /* We know is_branch_reloc (r_type) is true. */
6111 if (h->type == STT_GNU_IFUNC
6112 || r_type == R_PPC_PLTREL24)
de972ffa 6113 plist = &h->plt.plist;
a9585d22
AM		 6114 }
6115 else if (sym_type == STT_GNU_IFUNC
6116 && elf_local_got_offsets (abfd) != NULL)
6117 {
6118 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6119 struct plt_entry **local_plt = (struct plt_entry **)
6120 (local_got_offsets + symtab_hdr->sh_info);
6121 plist = local_plt + ELF32_R_SYM (irel->r_info);
6122 }
6123 if (plist != NULL)
6124 {
6125 bfd_vma addend = 0;
6126 struct plt_entry *ent;
de972ffa 6127
a9585d22
AM		 6128 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6129 addend = irel->r_addend;
6130 ent = find_plt_ent (plist, got2, addend);
6131 if (ent != NULL)
6132 {
6133 if (htab->plt_type == PLT_NEW
6134 || h == NULL
6135 || !htab->elf.dynamic_sections_created
6136 || h->dynindx == -1)
de972ffa 6137 {
a9585d22
AM		 6138 tsec = htab->glink;
6139 toff = ent->glink_offset;
6140 }
6141 else
6142 {
6143 tsec = htab->plt;
6144 toff = ent->plt.offset;
de972ffa
AM		 6145 }
6146 }
6147 }
6148
25dbc73a
AM		 6149 /* If the branch and target are in the same section, you have
6150 no hope of adding stubs. We'll error out later should the
6151 branch overflow. */
6152 if (tsec == isec)
6153 continue;
6154
6155 /* There probably isn't any reason to handle symbols in
6156 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6157 attribute for a code section, and we are only looking at
6158 branches. However, implement it correctly here as a
6159 reference for other target relax_section functions. */
6160 if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
6161 {
6162 /* At this stage in linking, no SEC_MERGE symbol has been
6163 adjusted, so all references to such symbols need to be
6164 passed through _bfd_merged_section_offset. (Later, in
6165 relocate_section, all SEC_MERGE symbols *except* for
6166 section symbols have been adjusted.)
6167
6168 gas may reduce relocations against symbols in SEC_MERGE
6169 sections to a relocation against the section symbol when
6170 the original addend was zero. When the reloc is against
6171 a section symbol we should include the addend in the
6172 offset passed to _bfd_merged_section_offset, since the
6173 location of interest is the original symbol. On the
6174 other hand, an access to "sym+addend" where "sym" is not
6175 a section symbol should not include the addend; Such an
6176 access is presumed to be an offset from "sym"; The
6177 location of interest is just "sym". */
6178 if (sym_type == STT_SECTION)
6179 toff += irel->r_addend;
7619e7c7 6180
25dbc73a
AM		 6181 toff = _bfd_merged_section_offset (abfd, &tsec,
6182 elf_section_data (tsec)->sec_info,
6183 toff);
7619e7c7 6184
25dbc73a
AM		 6185 if (sym_type != STT_SECTION)
6186 toff += irel->r_addend;
6187 }
a6aa5195
AM		 6188 /* PLTREL24 addends are special. */
6189 else if (r_type != R_PPC_PLTREL24)
25dbc73a 6190 toff += irel->r_addend;
7619e7c7 6191
7de713b9
AM		 6192 /* Attempted -shared link of non-pic code loses. */
6193 if (tsec->output_section == NULL)
6194 continue;
6195
25dbc73a 6196 roff = irel->r_offset;
7619e7c7 6197
25dbc73a 6198 /* If the branch is in range, no need to do anything. */
c8a1f254
NS		 6199 if (tsec != bfd_und_section_ptr
6200 && (!link_info->relocatable
6201 /* A relocatable link may have sections moved during
6202 final link, so do not presume they remain in range. */
01017ef8
NS		 6203 || tsec->output_section == isec->output_section))
6204 {
6205 bfd_vma symaddr, reladdr;
6206
6207 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6208 reladdr = isec->output_section->vma + isec->output_offset + roff;
6209 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6210 continue;
6211 }
252b5132 6212
25dbc73a
AM		 6213 /* Look for an existing fixup to this address. */
6214 for (f = fixups; f ; f = f->next)
6215 if (f->tsec == tsec && f->toff == toff)
6216 break;
6217
6218 if (f == NULL)
7619e7c7 6219 {
25dbc73a
AM		 6220 size_t size;
6221 unsigned long stub_rtype;
252b5132 6222
25dbc73a
AM		 6223 val = trampoff - roff;
6224 if (val >= max_branch_offset)
6225 /* Oh dear, we can't reach a trampoline. Don't try to add
6226 one. We'll report an error later. */
6227 continue;
252b5132 6228
25dbc73a
AM		 6229 if (link_info->shared)
6230 {
6231 size = 4 * ARRAY_SIZE (shared_stub_entry);
6232 insn_offset = 12;
25dbc73a
AM		 6233 }
6234 else
6235 {
6236 size = 4 * ARRAY_SIZE (stub_entry);
6237 insn_offset = 0;
25dbc73a 6238 }
32af9f6e 6239 stub_rtype = R_PPC_RELAX;
d7128ce4
AM		 6240 if (tsec == htab->plt
6241 || tsec == htab->glink)
32af9f6e
AM		 6242 {
6243 stub_rtype = R_PPC_RELAX_PLT;
6244 if (r_type == R_PPC_PLTREL24)
6245 stub_rtype = R_PPC_RELAX_PLTREL24;
6246 }
252b5132 6247
25dbc73a
AM		 6248 /* Hijack the old relocation. Since we need two
6249 relocations for this use a "composite" reloc. */
6250 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6251 stub_rtype);
6252 irel->r_offset = trampoff + insn_offset;
32af9f6e
AM		 6253 if (r_type == R_PPC_PLTREL24
6254 && stub_rtype != R_PPC_RELAX_PLTREL24)
e7d92e2e 6255 irel->r_addend = 0;
252b5132 6256
25dbc73a
AM		 6257 /* Record the fixup so we don't do it again this section. */
6258 f = bfd_malloc (sizeof (*f));
6259 f->next = fixups;
6260 f->tsec = tsec;
6261 f->toff = toff;
6262 f->trampoff = trampoff;
6263 fixups = f;
252b5132 6264
25dbc73a 6265 trampoff += size;
9bc4e62b 6266 changes++;
25dbc73a
AM		 6267 }
6268 else
6269 {
6270 val = f->trampoff - roff;
6271 if (val >= max_branch_offset)
6272 continue;
252b5132 6273
25dbc73a
AM		 6274 /* Nop out the reloc, since we're finalizing things here. */
6275 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6276 }
252b5132 6277
25dbc73a
AM		 6278 /* Get the section contents. */
6279 if (contents == NULL)
6280 {
6281 /* Get cached copy if it exists. */
6282 if (elf_section_data (isec)->this_hdr.contents != NULL)
6283 contents = elf_section_data (isec)->this_hdr.contents;
6284 else
6285 {
6286 /* Go get them off disk. */
6287 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6288 goto error_return;
6289 }
6290 }
252b5132 6291
25dbc73a
AM		 6292 /* Fix up the existing branch to hit the trampoline. */
6293 hit_addr = contents + roff;
6294 switch (r_type)
6295 {
6296 case R_PPC_REL24:
6297 case R_PPC_LOCAL24PC:
6298 case R_PPC_PLTREL24:
6299 t0 = bfd_get_32 (abfd, hit_addr);
6300 t0 &= ~0x3fffffc;
6301 t0 |= val & 0x3fffffc;
6302 bfd_put_32 (abfd, t0, hit_addr);
6303 break;
252b5132 6304
25dbc73a
AM		 6305 case R_PPC_REL14:
6306 case R_PPC_REL14_BRTAKEN:
6307 case R_PPC_REL14_BRNTAKEN:
6308 t0 = bfd_get_32 (abfd, hit_addr);
6309 t0 &= ~0xfffc;
6310 t0 |= val & 0xfffc;
6311 bfd_put_32 (abfd, t0, hit_addr);
6312 break;
6313 }
6314 }
252b5132 6315
25dbc73a 6316 /* Write out the trampolines. */
25dbc73a
AM		 6317 if (fixups != NULL)
6318 {
6319 const int *stub;
6320 bfd_byte *dest;
25dbc73a 6321 int i, size;
252b5132 6322
25dbc73a
AM		 6323 do
6324 {
6325 struct one_fixup *f = fixups;
6326 fixups = fixups->next;
6327 free (f);
6328 }
6329 while (fixups);
252b5132 6330
515ef31d 6331 contents = bfd_realloc_or_free (contents, trampoff);
25dbc73a
AM		 6332 if (contents == NULL)
6333 goto error_return;
252b5132 6334
25dbc73a 6335 isec->size = (isec->size + 3) & (bfd_vma) -4;
25dbc73a 6336 dest = contents + isec->size;
50248c89
AM		 6337 /* Branch around the trampolines. */
6338 if (maybe_pasted)
6339 {
6340 bfd_vma val = B + trampoff - isec->size;
6341 bfd_put_32 (abfd, val, dest);
6342 dest += 4;
6343 }
25dbc73a 6344 isec->size = trampoff;
252b5132 6345
25dbc73a
AM		 6346 if (link_info->shared)
6347 {
6348 stub = shared_stub_entry;
6349 size = ARRAY_SIZE (shared_stub_entry);
6350 }
6351 else
6352 {
6353 stub = stub_entry;
6354 size = ARRAY_SIZE (stub_entry);
6355 }
252b5132 6356
25dbc73a
AM		 6357 i = 0;
6358 while (dest < contents + trampoff)
252b5132 6359 {
25dbc73a
AM		 6360 bfd_put_32 (abfd, stub[i], dest);
6361 i++;
6362 if (i == size)
6363 i = 0;
6364 dest += 4;
252b5132 6365 }
25dbc73a 6366 BFD_ASSERT (i == 0);
252b5132
RH		 6367 }
6368
25dbc73a
AM		 6369 if (isymbuf != NULL
6370 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 6371 {
25dbc73a
AM		 6372 if (! link_info->keep_memory)
6373 free (isymbuf);
252b5132 6374 else
25dbc73a
AM		 6375 {
6376 /* Cache the symbols for elf_link_input_bfd. */
6377 symtab_hdr->contents = (unsigned char *) isymbuf;
6378 }
252b5132
RH		 6379 }
6380
25dbc73a
AM		 6381 if (contents != NULL
6382 && elf_section_data (isec)->this_hdr.contents != contents)
6383 {
9bc4e62b 6384 if (!changes && !link_info->keep_memory)
25dbc73a
AM		 6385 free (contents);
6386 else
6387 {
6388 /* Cache the section contents for elf_link_input_bfd. */
6389 elf_section_data (isec)->this_hdr.contents = contents;
6390 }
6391 }
252b5132 6392
9bc4e62b 6393 if (changes != 0)
25dbc73a 6394 {
9bc4e62b
NS		 6395 /* Append sufficient NOP relocs so we can write out relocation
6396 information for the trampolines. */
d4730f92 6397 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS		 6398 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
6399 * sizeof (*new_relocs));
6400 unsigned ix;
5b914448 6401
9bc4e62b
NS		 6402 if (!new_relocs)
6403 goto error_return;
6404 memcpy (new_relocs, internal_relocs,
6405 isec->reloc_count * sizeof (*new_relocs));
6406 for (ix = changes; ix--;)
6407 {
6408 irel = new_relocs + ix + isec->reloc_count;
6409
6410 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6411 }
6412 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 6413 free (internal_relocs);
9bc4e62b
NS		 6414 elf_section_data (isec)->relocs = new_relocs;
6415 isec->reloc_count += changes;
d4730f92
BS		 6416 rel_hdr = _bfd_elf_single_rel_hdr (isec);
6417 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 6418 }
9bc4e62b
NS		 6419 else if (elf_section_data (isec)->relocs != internal_relocs)
6420 free (internal_relocs);
252b5132 6421
9bc4e62b 6422 *again = changes != 0;
c8a1f254
NS		 6423 if (!*again && link_info->relocatable)
6424 {
6425 /* Convert the internal relax relocs to external form. */
6426 for (irel = internal_relocs; irel < irelend; irel++)
32af9f6e 6427 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
c8a1f254
NS		 6428 {
6429 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
6430
6431 /* Rewrite the reloc and convert one of the trailing nop
6432 relocs to describe this relocation. */
6433 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
6434 /* The relocs are at the bottom 2 bytes */
6435 irel[0].r_offset += 2;
6436 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
6437 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
6438 irel[1].r_offset += 4;
6439 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
6440 irel++;
6441 }
6442 }
5b914448 6443
b34976b6 6444 return TRUE;
25dbc73a
AM		 6445
6446 error_return:
6447 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
6448 free (isymbuf);
6449 if (contents != NULL
6450 && elf_section_data (isec)->this_hdr.contents != contents)
6451 free (contents);
6452 if (internal_relocs != NULL
6453 && elf_section_data (isec)->relocs != internal_relocs)
6454 free (internal_relocs);
6455 return FALSE;
252b5132 6456}
252b5132 6457\f
8a696751
AM		 6458/* What to do when ld finds relocations against symbols defined in
6459 discarded sections. */
6460
6461static unsigned int
6462ppc_elf_action_discarded (asection *sec)
6463{
6464 if (strcmp (".fixup", sec->name) == 0)
6465 return 0;
6466
6467 if (strcmp (".got2", sec->name) == 0)
6468 return 0;
6469
6470 return _bfd_elf_default_action_discarded (sec);
6471}
c9a2f333 6472\f
25dbc73a 6473/* Fill in the address for a pointer generated in a linker section. */
252b5132 6474
25dbc73a 6475static bfd_vma
76750a2f 6476elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM		 6477 elf_linker_section_t *lsect,
6478 struct elf_link_hash_entry *h,
6479 bfd_vma relocation,
2bb04cf2 6480 const Elf_Internal_Rela *rel)
25dbc73a
AM		 6481{
6482 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 6483
25dbc73a 6484 BFD_ASSERT (lsect != NULL);
252b5132 6485
25dbc73a 6486 if (h != NULL)
252b5132 6487 {
25dbc73a
AM		 6488 /* Handle global symbol. */
6489 struct ppc_elf_link_hash_entry *eh;
252b5132 6490
25dbc73a 6491 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM		 6492 BFD_ASSERT (eh->elf.def_regular);
6493 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM		 6494 }
6495 else
6496 {
6497 /* Handle local symbol. */
6498 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 6499
0c8d6e5c 6500 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 6501 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM		 6502 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
6503 }
252b5132 6504
76750a2f
AM		 6505 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
6506 rel->r_addend,
6507 lsect);
6508 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 6509
76750a2f
AM		 6510 /* Offset will always be a multiple of four, so use the bottom bit
6511 as a "written" flag. */
6512 if ((linker_section_ptr->offset & 1) == 0)
6513 {
6514 bfd_put_32 (lsect->section->owner,
6515 relocation + linker_section_ptr->addend,
6516 lsect->section->contents + linker_section_ptr->offset);
6517 linker_section_ptr->offset += 1;
252b5132
RH		 6518 }
6519
bd6c6e2b
AM		 6520 relocation = (lsect->section->output_section->vma
6521 + lsect->section->output_offset
76750a2f 6522 + linker_section_ptr->offset - 1
bd6c6e2b 6523 - SYM_VAL (lsect->sym));
252b5132 6524
25dbc73a
AM		 6525#ifdef DEBUG
6526 fprintf (stderr,
6527 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
6528 lsect->name, (long) relocation, (long) relocation);
6529#endif
252b5132 6530
bd6c6e2b 6531 return relocation;
252b5132 6532}
25dbc73a 6533
e054468f
AM		 6534#define PPC_LO(v) ((v) & 0xffff)
6535#define PPC_HI(v) (((v) >> 16) & 0xffff)
6536#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6537
6538static void
a7f2871e 6539write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM		 6540 struct bfd_link_info *info)
6541{
6542 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
6543 bfd *output_bfd = info->output_bfd;
6544 bfd_vma plt;
e054468f
AM		 6545
6546 plt = ((ent->plt.offset & ~1)
6547 + plt_sec->output_section->vma
6548 + plt_sec->output_offset);
e054468f 6549
a877a2b6 6550 if (info->shared)
e054468f
AM		 6551 {
6552 bfd_vma got = 0;
6553
6554 if (ent->addend >= 32768)
6555 got = (ent->addend
6556 + ent->sec->output_section->vma
6557 + ent->sec->output_offset);
6558 else if (htab->elf.hgot != NULL)
6559 got = SYM_VAL (htab->elf.hgot);
6560
6561 plt -= got;
6562
6563 if (plt + 0x8000 < 0x10000)
6564 {
6565 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
6566 p += 4;
6567 bfd_put_32 (output_bfd, MTCTR_11, p);
6568 p += 4;
6569 bfd_put_32 (output_bfd, BCTR, p);
6570 p += 4;
6571 bfd_put_32 (output_bfd, NOP, p);
6572 p += 4;
6573 }
6574 else
6575 {
6576 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
6577 p += 4;
6578 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
6579 p += 4;
6580 bfd_put_32 (output_bfd, MTCTR_11, p);
6581 p += 4;
6582 bfd_put_32 (output_bfd, BCTR, p);
6583 p += 4;
6584 }
6585 }
6586 else
6587 {
6588 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
6589 p += 4;
6590 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
6591 p += 4;
6592 bfd_put_32 (output_bfd, MTCTR_11, p);
6593 p += 4;
6594 bfd_put_32 (output_bfd, BCTR, p);
6595 p += 4;
6596 }
6597}
6598
bd6c6e2b
AM		 6599/* Return true if symbol is defined statically. */
6600
6601static bfd_boolean
6602is_static_defined (struct elf_link_hash_entry *h)
6603{
6604 return ((h->root.type == bfd_link_hash_defined
6605 || h->root.type == bfd_link_hash_defweak)
6606 && h->root.u.def.section != NULL
6607 && h->root.u.def.section->output_section != NULL);
6608}
6609
2d0f3896
AM		 6610/* If INSN is an opcode that may be used with an @tls operand, return
6611 the transformed insn for TLS optimisation, otherwise return 0. If
6612 REG is non-zero only match an insn with RB or RA equal to REG. */
6613
6614unsigned int
6615_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
6616{
6617 unsigned int rtra;
6618
6619 if ((insn & (0x3f << 26)) != 31 << 26)
6620 return 0;
6621
6622 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
6623 rtra = insn & ((1 << 26) - (1 << 16));
6624 else if (((insn >> 16) & 0x1f) == reg)
6625 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
6626 else
6627 return 0;
6628
6629 if ((insn & (0x3ff << 1)) == 266 << 1)
6630 /* add -> addi. */
6631 insn = 14 << 26;
6632 else if ((insn & (0x1f << 1)) == 23 << 1
6633 && ((insn & (0x1f << 6)) < 14 << 6
6634 || ((insn & (0x1f << 6)) >= 16 << 6
6635 && (insn & (0x1f << 6)) < 24 << 6)))
6636 /* load and store indexed -> dform. */
6637 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
6638 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
6639 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
6640 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
6641 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
6642 /* lwax -> lwa. */
6643 insn = (58 << 26) | 2;
6644 else
6645 return 0;
6646 insn |= rtra;
6647 return insn;
6648}
6649
766bc656
AM		 6650/* If INSN is an opcode that may be used with an @tprel operand, return
6651 the transformed insn for an undefined weak symbol, ie. with the
6652 thread pointer REG operand removed. Otherwise return 0. */
6653
6654unsigned int
6655_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
6656{
6657 if ((insn & (0x1f << 16)) == reg << 16
6658 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
6659 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
6660 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
6661 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
6662 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
6663 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
6664 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
6665 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
6666 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
6667 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
6668 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
6669 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
6670 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
6671 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
6672 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
6673 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
6674 && (insn & 3) != 1)
6675 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
6676 && ((insn & 3) == 0 || (insn & 3) == 3))))
6677 {
6678 insn &= ~(0x1f << 16);
6679 }
6680 else if ((insn & (0x1f << 21)) == reg << 21
6681 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
6682 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
6683 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
6684 {
6685 insn &= ~(0x1f << 21);
6686 insn |= (insn & (0x1f << 16)) << 5;
6687 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
6688 insn -= 2 >> 26; /* convert to ori,oris */
6689 }
6690 else
6691 insn = 0;
6692 return insn;
6693}
6694
252b5132
RH		 6695/* The RELOCATE_SECTION function is called by the ELF backend linker
6696 to handle the relocations for a section.
6697
6698 The relocs are always passed as Rela structures; if the section
6699 actually uses Rel structures, the r_addend field will always be
6700 zero.
6701
6702 This function is responsible for adjust the section contents as
6703 necessary, and (if using Rela relocs and generating a
1049f94e 6704 relocatable output file) adjusting the reloc addend as
252b5132
RH		 6705 necessary.
6706
6707 This function does not have to worry about setting the reloc
6708 address or the reloc symbol index.
6709
6710 LOCAL_SYMS is a pointer to the swapped in local symbols.
6711
6712 LOCAL_SECTIONS is an array giving the section in the input file
6713 corresponding to the st_shndx field of each local symbol.
6714
6715 The global hash table entry for the global symbols can be found
6716 via elf_sym_hashes (input_bfd).
6717
1049f94e 6718 When generating relocatable output, this function must handle
252b5132
RH		 6719 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6720 going to be the section symbol corresponding to the output
6721 section, which means that the addend must be adjusted
6722 accordingly. */
6723
b34976b6 6724static bfd_boolean
55fd94b0
AM		 6725ppc_elf_relocate_section (bfd *output_bfd,
6726 struct bfd_link_info *info,
6727 bfd *input_bfd,
6728 asection *input_section,
6729 bfd_byte *contents,
6730 Elf_Internal_Rela *relocs,
6731 Elf_Internal_Sym *local_syms,
6732 asection **local_sections)
252b5132 6733{
7619e7c7
AM		 6734 Elf_Internal_Shdr *symtab_hdr;
6735 struct elf_link_hash_entry **sym_hashes;
6736 struct ppc_elf_link_hash_table *htab;
6737 Elf_Internal_Rela *rel;
6738 Elf_Internal_Rela *relend;
6739 Elf_Internal_Rela outrel;
a6aa5195 6740 asection *got2, *sreloc = NULL;
252b5132 6741 bfd_vma *local_got_offsets;
b34976b6 6742 bfd_boolean ret = TRUE;
4fe5ca5b 6743 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 6744 bfd_boolean is_vxworks_tls;
b34976b6 6745
252b5132 6746#ifdef DEBUG
d003868e
AM		 6747 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
6748 "%ld relocations%s",
6749 input_bfd, input_section,
6750 (long) input_section->reloc_count,
6751 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH		 6752#endif
6753
a6aa5195
AM		 6754 got2 = bfd_get_section_by_name (input_bfd, ".got2");
6755
e47cd125 6756 /* Initialize howto table if not already done. */
8da6118f 6757 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH		 6758 ppc_elf_howto_init ();
6759
7619e7c7 6760 htab = ppc_elf_hash_table (info);
252b5132 6761 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 6762 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 6763 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS		 6764 /* We have to handle relocations in vxworks .tls_vars sections
6765 specially, because the dynamic loader is 'weird'. */
6766 is_vxworks_tls = (htab->is_vxworks && info->shared
6767 && !strcmp (input_section->output_section->name,
6768 ".tls_vars"));
7619e7c7
AM		 6769 rel = relocs;
6770 relend = relocs + input_section->reloc_count;
252b5132
RH		 6771 for (; rel < relend; rel++)
6772 {
7619e7c7
AM		 6773 enum elf_ppc_reloc_type r_type;
6774 bfd_vma addend;
6775 bfd_reloc_status_type r;
6776 Elf_Internal_Sym *sym;
6777 asection *sec;
6778 struct elf_link_hash_entry *h;
6779 const char *sym_name;
252b5132
RH		 6780 reloc_howto_type *howto;
6781 unsigned long r_symndx;
6782 bfd_vma relocation;
91d6fa6a 6783 bfd_vma branch_bit, from;
7619e7c7
AM		 6784 bfd_boolean unresolved_reloc;
6785 bfd_boolean warned;
6786 unsigned int tls_type, tls_mask, tls_gd;
e054468f 6787 struct plt_entry **ifunc;
7619e7c7 6788
55fd94b0
AM		 6789 r_type = ELF32_R_TYPE (rel->r_info);
6790 sym = NULL;
6791 sec = NULL;
6792 h = NULL;
7619e7c7
AM		 6793 unresolved_reloc = FALSE;
6794 warned = FALSE;
252b5132 6795 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 6796
252b5132
RH		 6797 if (r_symndx < symtab_hdr->sh_info)
6798 {
6799 sym = local_syms + r_symndx;
6800 sec = local_sections[r_symndx];
26c61ae5 6801 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 6802
8517fae7 6803 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH		 6804 }
6805 else
6806 {
b2a8e766
AM		 6807 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
6808 r_symndx, symtab_hdr, sym_hashes,
6809 h, sec, relocation,
6810 unresolved_reloc, warned);
9abc968f 6811
252b5132 6812 sym_name = h->root.root.string;
7619e7c7
AM		 6813 }
6814
ab96bf03
AM		 6815 if (sec != NULL && elf_discarded_section (sec))
6816 {
6817 /* For relocs against symbols from removed linkonce sections,
6818 or sections discarded by a linker script, we just want the
6819 section contents zeroed. Avoid any special processing. */
6820 howto = NULL;
6821 if (r_type < R_PPC_max)
6822 howto = ppc_elf_howto_table[r_type];
e4067dbb
DJ		 6823 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
6824 rel, relend, howto, contents);
ab96bf03
AM		 6825 }
6826
6827 if (info->relocatable)
6828 {
6829 if (got2 != NULL
6830 && r_type == R_PPC_PLTREL24
6831 && rel->r_addend >= 32768)
6832 {
6833 /* R_PPC_PLTREL24 is rather special. If non-zero, the
6834 addend specifies the GOT pointer offset within .got2. */
6835 rel->r_addend += got2->output_offset;
6836 }
6837 continue;
6838 }
6839
7619e7c7
AM		 6840 /* TLS optimizations. Replace instruction sequences and relocs
6841 based on information we collected in tls_optimize. We edit
6842 RELOCS so that --emit-relocs will output something sensible
6843 for the final instruction stream. */
6844 tls_mask = 0;
6845 tls_gd = 0;
727fc41e
AM		 6846 if (h != NULL)
6847 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
6848 else if (local_got_offsets != NULL)
7619e7c7 6849 {
e054468f 6850 struct plt_entry **local_plt;
727fc41e 6851 char *lgot_masks;
e054468f
AM		 6852 local_plt
6853 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
6854 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 6855 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM		 6856 }
6857
6858 /* Ensure reloc mapping code below stays sane. */
6859 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
6860 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
6861 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
6862 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
6863 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
6864 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
6865 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
6866 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
6867 abort ();
6868 switch (r_type)
6869 {
6870 default:
6871 break;
6872
6873 case R_PPC_GOT_TPREL16:
6874 case R_PPC_GOT_TPREL16_LO:
e054468f 6875 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM		 6876 && (tls_mask & TLS_TPREL) == 0)
6877 {
6878 bfd_vma insn;
91d6fa6a 6879
4fe5ca5b 6880 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM		 6881 insn &= 31 << 21;
6882 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 6883 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM		 6884 r_type = R_PPC_TPREL16_HA;
6885 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6886 }
6887 break;
6888
6889 case R_PPC_TLS:
e054468f 6890 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM		 6891 && (tls_mask & TLS_TPREL) == 0)
6892 {
2d0f3896
AM		 6893 bfd_vma insn;
6894
7619e7c7 6895 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM		 6896 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
6897 if (insn == 0)
7619e7c7 6898 abort ();
7619e7c7
AM		 6899 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
6900 r_type = R_PPC_TPREL16_LO;
6901 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 6902
7619e7c7 6903 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM		 6904 PPC_TPREL16_LO which is at low-order half-word. */
6905 rel->r_offset += d_offset;
7619e7c7
AM		 6906 }
6907 break;
6908
6909 case R_PPC_GOT_TLSGD16_HI:
6910 case R_PPC_GOT_TLSGD16_HA:
6911 tls_gd = TLS_TPRELGD;
e054468f 6912 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM		 6913 goto tls_gdld_hi;
6914 break;
6915
6916 case R_PPC_GOT_TLSLD16_HI:
6917 case R_PPC_GOT_TLSLD16_HA:
e054468f 6918 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM		 6919 {
6920 tls_gdld_hi:
6921 if ((tls_mask & tls_gd) != 0)
6922 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6923 + R_PPC_GOT_TPREL16);
6924 else
6925 {
6926 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 6927 rel->r_offset -= d_offset;
7619e7c7
AM		 6928 r_type = R_PPC_NONE;
6929 }
6930 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6931 }
6932 break;
6933
6934 case R_PPC_GOT_TLSGD16:
6935 case R_PPC_GOT_TLSGD16_LO:
6936 tls_gd = TLS_TPRELGD;
e054468f 6937 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 6938 goto tls_ldgd_opt;
7619e7c7
AM		 6939 break;
6940
6941 case R_PPC_GOT_TLSLD16:
6942 case R_PPC_GOT_TLSLD16_LO:
e054468f 6943 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 6944 {
3a71aa26 6945 unsigned int insn1, insn2;
b7fcf6f6 6946 bfd_vma offset;
7619e7c7 6947
b7fcf6f6 6948 tls_ldgd_opt:
727fc41e
AM		 6949 offset = (bfd_vma) -1;
6950 /* If not using the newer R_PPC_TLSGD/LD to mark
6951 __tls_get_addr calls, we must trust that the call
6952 stays with its arg setup insns, ie. that the next
6953 reloc is the __tls_get_addr call associated with
6954 the current reloc. Edit both insns. */
6955 if (input_section->has_tls_get_addr_call
6956 && rel + 1 < relend
6957 && branch_reloc_hash_match (input_bfd, rel + 1,
6958 htab->tls_get_addr))
6959 offset = rel[1].r_offset;
b7fcf6f6
AM		 6960 if ((tls_mask & tls_gd) != 0)
6961 {
6962 /* IE */
3a71aa26
AM		 6963 insn1 = bfd_get_32 (output_bfd,
6964 contents + rel->r_offset - d_offset);
b7fcf6f6
AM		 6965 insn1 &= (1 << 26) - 1;
6966 insn1 |= 32 << 26; /* lwz */
727fc41e
AM		 6967 if (offset != (bfd_vma) -1)
6968 {
f58d5a2d 6969 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM		 6970 insn2 = 0x7c631214; /* add 3,3,2 */
6971 bfd_put_32 (output_bfd, insn2, contents + offset);
6972 }
b7fcf6f6
AM		 6973 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
6974 + R_PPC_GOT_TPREL16);
6975 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
6976 }
6977 else
6978 {
6979 /* LE */
6980 insn1 = 0x3c620000; /* addis 3,2,0 */
7619e7c7
AM		 6981 if (tls_gd == 0)
6982 {
b7fcf6f6 6983 /* Was an LD reloc. */
1d483afe
AM		 6984 for (r_symndx = 0;
6985 r_symndx < symtab_hdr->sh_info;
6986 r_symndx++)
6987 if (local_sections[r_symndx] == sec)
6988 break;
6989 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 6990 r_symndx = STN_UNDEF;
b7fcf6f6 6991 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 6992 if (r_symndx != STN_UNDEF)
1d483afe
AM		 6993 rel->r_addend -= (local_syms[r_symndx].st_value
6994 + sec->output_offset
6995 + sec->output_section->vma);
7619e7c7 6996 }
b7fcf6f6
AM		 6997 r_type = R_PPC_TPREL16_HA;
6998 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM		 6999 if (offset != (bfd_vma) -1)
7000 {
7001 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7002 rel[1].r_offset = offset + d_offset;
7003 rel[1].r_addend = rel->r_addend;
7004 insn2 = 0x38630000; /* addi 3,3,0 */
7005 bfd_put_32 (output_bfd, insn2, contents + offset);
7006 }
b7fcf6f6
AM		 7007 }
7008 bfd_put_32 (output_bfd, insn1,
7009 contents + rel->r_offset - d_offset);
b7fcf6f6
AM		 7010 if (tls_gd == 0)
7011 {
7012 /* We changed the symbol on an LD reloc. Start over
7013 in order to get h, sym, sec etc. right. */
7014 rel--;
7015 continue;
7619e7c7 7016 }
252b5132 7017 }
7619e7c7 7018 break;
727fc41e
AM		 7019
7020 case R_PPC_TLSGD:
e054468f 7021 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM		 7022 {
7023 unsigned int insn2;
7024 bfd_vma offset = rel->r_offset;
7025
7026 if ((tls_mask & TLS_TPRELGD) != 0)
7027 {
7028 /* IE */
7029 r_type = R_PPC_NONE;
7030 insn2 = 0x7c631214; /* add 3,3,2 */
7031 }
7032 else
7033 {
7034 /* LE */
7035 r_type = R_PPC_TPREL16_LO;
7036 rel->r_offset += d_offset;
7037 insn2 = 0x38630000; /* addi 3,3,0 */
7038 }
7039 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7040 bfd_put_32 (output_bfd, insn2, contents + offset);
7041 /* Zap the reloc on the _tls_get_addr call too. */
7042 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 7043 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM		 7044 }
7045 break;
7046
7047 case R_PPC_TLSLD:
e054468f 7048 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM		 7049 {
7050 unsigned int insn2;
7051
7052 for (r_symndx = 0;
7053 r_symndx < symtab_hdr->sh_info;
7054 r_symndx++)
7055 if (local_sections[r_symndx] == sec)
7056 break;
7057 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7058 r_symndx = STN_UNDEF;
727fc41e 7059 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7060 if (r_symndx != STN_UNDEF)
727fc41e
AM		 7061 rel->r_addend -= (local_syms[r_symndx].st_value
7062 + sec->output_offset
7063 + sec->output_section->vma);
7064
7065 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7066 rel->r_offset += d_offset;
7067 insn2 = 0x38630000; /* addi 3,3,0 */
7068 bfd_put_32 (output_bfd, insn2,
7069 contents + rel->r_offset - d_offset);
7070 /* Zap the reloc on the _tls_get_addr call too. */
7071 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 7072 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM		 7073 rel--;
7074 continue;
7075 }
7076 break;
7619e7c7
AM		 7077 }
7078
7079 /* Handle other relocations that tweak non-addend part of insn. */
7080 branch_bit = 0;
7081 switch (r_type)
7082 {
7083 default:
7084 break;
7085
7086 /* Branch taken prediction relocations. */
7087 case R_PPC_ADDR14_BRTAKEN:
7088 case R_PPC_REL14_BRTAKEN:
7089 branch_bit = BRANCH_PREDICT_BIT;
7090 /* Fall thru */
7091
4cc11e76 7092 /* Branch not taken prediction relocations. */
7619e7c7
AM		 7093 case R_PPC_ADDR14_BRNTAKEN:
7094 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC		 7095 {
7096 bfd_vma insn;
7619e7c7 7097
91d6fa6a
NC		 7098 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7099 insn &= ~BRANCH_PREDICT_BIT;
7100 insn |= branch_bit;
7619e7c7 7101
91d6fa6a
NC		 7102 from = (rel->r_offset
7103 + input_section->output_offset
7104 + input_section->output_section->vma);
7619e7c7 7105
91d6fa6a
NC		 7106 /* Invert 'y' bit if not the default. */
7107 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7108 insn ^= BRANCH_PREDICT_BIT;
7109
7110 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7111 break;
7112 }
252b5132
RH		 7113 }
7114
e054468f 7115 ifunc = NULL;
25f23106 7116 if (!htab->is_vxworks)
e054468f 7117 {
de972ffa
AM		 7118 struct plt_entry *ent;
7119
e054468f
AM		 7120 if (h != NULL)
7121 {
7122 if (h->type == STT_GNU_IFUNC)
7123 ifunc = &h->plt.plist;
7124 }
de972ffa
AM		 7125 else if (local_got_offsets != NULL
7126 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 7127 {
de972ffa 7128 struct plt_entry **local_plt;
e054468f 7129
de972ffa
AM		 7130 local_plt = (struct plt_entry **) (local_got_offsets
7131 + symtab_hdr->sh_info);
7132 ifunc = local_plt + r_symndx;
e054468f 7133 }
e054468f 7134
de972ffa
AM		 7135 ent = NULL;
7136 if (ifunc != NULL
7137 && (!info->shared
7138 || is_branch_reloc (r_type)))
7139 {
7140 addend = 0;
a877a2b6 7141 if (r_type == R_PPC_PLTREL24 && info->shared)
de972ffa
AM		 7142 addend = rel->r_addend;
7143 ent = find_plt_ent (ifunc, got2, addend);
7144 }
7145 if (ent != NULL)
7146 {
e054468f
AM		 7147 if (h == NULL && (ent->plt.offset & 1) == 0)
7148 {
7149 Elf_Internal_Rela rela;
7150 bfd_byte *loc;
7151
7152 rela.r_offset = (htab->iplt->output_section->vma
7153 + htab->iplt->output_offset
7154 + ent->plt.offset);
7155 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7156 rela.r_addend = relocation;
25f23106
AM		 7157 loc = htab->reliplt->contents;
7158 loc += (htab->reliplt->reloc_count++
7159 * sizeof (Elf32_External_Rela));
e054468f
AM		 7160 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7161
7162 ent->plt.offset |= 1;
7163 }
7164 if (h == NULL && (ent->glink_offset & 1) == 0)
7165 {
a7f2871e
AM		 7166 unsigned char *p = ((unsigned char *) htab->glink->contents
7167 + ent->glink_offset);
7168 write_glink_stub (ent, htab->iplt, p, info);
e054468f
AM		 7169 ent->glink_offset |= 1;
7170 }
7171
7172 unresolved_reloc = FALSE;
7173 if (htab->plt_type == PLT_NEW
7174 || !htab->elf.dynamic_sections_created
7175 || h == NULL)
7176 relocation = (htab->glink->output_section->vma
7177 + htab->glink->output_offset
7178 + (ent->glink_offset & ~1));
7179 else
7180 relocation = (htab->plt->output_section->vma
7181 + htab->plt->output_offset
7182 + ent->plt.offset);
7183 }
7184 }
7185
7619e7c7
AM		 7186 addend = rel->r_addend;
7187 tls_type = 0;
7188 howto = NULL;
55fd94b0
AM		 7189 if (r_type < R_PPC_max)
7190 howto = ppc_elf_howto_table[r_type];
7619e7c7 7191 switch (r_type)
252b5132
RH		 7192 {
7193 default:
25f53a85
AM		 7194 info->callbacks->einfo
7195 (_("%B: unknown relocation type %d for symbol %s\n"),
d003868e 7196 input_bfd, (int) r_type, sym_name);
252b5132
RH		 7197
7198 bfd_set_error (bfd_error_bad_value);
b34976b6 7199 ret = FALSE;
252b5132
RH		 7200 continue;
7201
7619e7c7
AM		 7202 case R_PPC_NONE:
7203 case R_PPC_TLS:
727fc41e
AM		 7204 case R_PPC_TLSGD:
7205 case R_PPC_TLSLD:
7619e7c7
AM		 7206 case R_PPC_EMB_MRKREF:
7207 case R_PPC_GNU_VTINHERIT:
7208 case R_PPC_GNU_VTENTRY:
7595d193
L		 7209 continue;
7210
7619e7c7
AM		 7211 /* GOT16 relocations. Like an ADDR16 using the symbol's
7212 address in the GOT as relocation value instead of the
7213 symbol's value itself. Also, create a GOT entry for the
7214 symbol and put the symbol value there. */
7215 case R_PPC_GOT_TLSGD16:
7216 case R_PPC_GOT_TLSGD16_LO:
7217 case R_PPC_GOT_TLSGD16_HI:
7218 case R_PPC_GOT_TLSGD16_HA:
7219 tls_type = TLS_TLS | TLS_GD;
7220 goto dogot;
7221
7222 case R_PPC_GOT_TLSLD16:
7223 case R_PPC_GOT_TLSLD16_LO:
7224 case R_PPC_GOT_TLSLD16_HI:
7225 case R_PPC_GOT_TLSLD16_HA:
7226 tls_type = TLS_TLS | TLS_LD;
7227 goto dogot;
7228
7229 case R_PPC_GOT_TPREL16:
7230 case R_PPC_GOT_TPREL16_LO:
7231 case R_PPC_GOT_TPREL16_HI:
7232 case R_PPC_GOT_TPREL16_HA:
7233 tls_type = TLS_TLS | TLS_TPREL;
7234 goto dogot;
7235
7236 case R_PPC_GOT_DTPREL16:
7237 case R_PPC_GOT_DTPREL16_LO:
7238 case R_PPC_GOT_DTPREL16_HI:
7239 case R_PPC_GOT_DTPREL16_HA:
7240 tls_type = TLS_TLS | TLS_DTPREL;
7241 goto dogot;
7242
7243 case R_PPC_GOT16:
7244 case R_PPC_GOT16_LO:
7245 case R_PPC_GOT16_HI:
7246 case R_PPC_GOT16_HA:
727fc41e 7247 tls_mask = 0;
7619e7c7
AM		 7248 dogot:
7249 {
7250 /* Relocation is to the entry for this symbol in the global
7251 offset table. */
7252 bfd_vma off;
7253 bfd_vma *offp;
7254 unsigned long indx;
7255
7256 if (htab->got == NULL)
7257 abort ();
7258
7259 indx = 0;
7260 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 7261 && (h == NULL
f5385ebf 7262 || !h->def_dynamic))
7619e7c7
AM		 7263 offp = &htab->tlsld_got.offset;
7264 else if (h != NULL)
7265 {
7266 bfd_boolean dyn;
7267 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 7268 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM		 7269 || (info->shared
7270 && SYMBOL_REFERENCES_LOCAL (info, h)))
7271 /* This is actually a static link, or it is a
7272 -Bsymbolic link and the symbol is defined
7273 locally, or the symbol was forced to be local
7274 because of a version file. */
7275 ;
7276 else
7277 {
7278 indx = h->dynindx;
7279 unresolved_reloc = FALSE;
7280 }
7281 offp = &h->got.offset;
7282 }
7283 else
7284 {
7285 if (local_got_offsets == NULL)
7286 abort ();
7287 offp = &local_got_offsets[r_symndx];
7288 }
7289
7290 /* The offset must always be a multiple of 4. We use the
7291 least significant bit to record whether we have already
7292 processed this entry. */
7293 off = *offp;
7294 if ((off & 1) != 0)
7295 off &= ~1;
7296 else
7297 {
70bccea4
AM		 7298 unsigned int tls_m = (tls_mask
7299 & (TLS_LD | TLS_GD | TLS_DTPREL
7300 | TLS_TPREL | TLS_TPRELGD));
7301
7302 if (offp == &htab->tlsld_got.offset)
7303 tls_m = TLS_LD;
7304 else if (h == NULL
f5385ebf 7305 || !h->def_dynamic)
70bccea4
AM		 7306 tls_m &= ~TLS_LD;
7307
7308 /* We might have multiple got entries for this sym.
7309 Initialize them all. */
7310 do
7619e7c7 7311 {
70bccea4
AM		 7312 int tls_ty = 0;
7313
7314 if ((tls_m & TLS_LD) != 0)
7619e7c7 7315 {
70bccea4
AM		 7316 tls_ty = TLS_TLS | TLS_LD;
7317 tls_m &= ~TLS_LD;
7318 }
7319 else if ((tls_m & TLS_GD) != 0)
7320 {
7321 tls_ty = TLS_TLS | TLS_GD;
7322 tls_m &= ~TLS_GD;
7323 }
7324 else if ((tls_m & TLS_DTPREL) != 0)
7325 {
7326 tls_ty = TLS_TLS | TLS_DTPREL;
7327 tls_m &= ~TLS_DTPREL;
7328 }
7329 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
7330 {
7331 tls_ty = TLS_TLS | TLS_TPREL;
7332 tls_m = 0;
7619e7c7 7333 }
7619e7c7 7334
70bccea4 7335 /* Generate relocs for the dynamic linker. */
4e795f50 7336 if ((info->shared || indx != 0)
d6e14abc
AM		 7337 && (offp == &htab->tlsld_got.offset
7338 || h == NULL
4e795f50
AM		 7339 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7340 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 7341 {
91e21fb7 7342 asection *rsec = htab->relgot;
91d6fa6a 7343 bfd_byte * loc;
91e21fb7 7344
70bccea4
AM		 7345 outrel.r_offset = (htab->got->output_section->vma
7346 + htab->got->output_offset
7347 + off);
e515b051 7348 outrel.r_addend = 0;
70bccea4
AM		 7349 if (tls_ty & (TLS_LD | TLS_GD))
7350 {
7351 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM		 7352 if (tls_ty == (TLS_TLS | TLS_GD))
7353 {
25f23106
AM		 7354 loc = rsec->contents;
7355 loc += (rsec->reloc_count++
70bccea4
AM		 7356 * sizeof (Elf32_External_Rela));
7357 bfd_elf32_swap_reloca_out (output_bfd,
7358 &outrel, loc);
e515b051 7359 outrel.r_offset += 4;
70bccea4
AM		 7360 outrel.r_info
7361 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM		 7362 }
7363 }
7364 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
7365 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
7366 else if (tls_ty == (TLS_TLS | TLS_TPREL))
7367 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 7368 else if (indx != 0)
70bccea4 7369 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM		 7370 else if (ifunc != NULL)
7371 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7372 else
7373 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 7374 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM		 7375 {
7376 outrel.r_addend += relocation;
7377 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 7378 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 7379 }
25f23106
AM		 7380 loc = rsec->contents;
7381 loc += (rsec->reloc_count++
70bccea4
AM		 7382 * sizeof (Elf32_External_Rela));
7383 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM		 7384 }
7385
70bccea4
AM		 7386 /* Init the .got section contents if we're not
7387 emitting a reloc. */
7388 else
7619e7c7 7389 {
70bccea4
AM		 7390 bfd_vma value = relocation;
7391
7b609f53
AM		 7392 if (tls_ty == (TLS_TLS | TLS_LD))
7393 value = 1;
7394 else if (tls_ty != 0)
70bccea4 7395 {
e1918d23 7396 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 7397 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 7398 value += DTP_OFFSET - TP_OFFSET;
70bccea4 7399
7b609f53
AM		 7400 if (tls_ty == (TLS_TLS | TLS_GD))
7401 {
7402 bfd_put_32 (output_bfd, value,
7403 htab->got->contents + off + 4);
7404 value = 1;
7405 }
70bccea4 7406 }
70bccea4
AM		 7407 bfd_put_32 (output_bfd, value,
7408 htab->got->contents + off);
7619e7c7 7409 }
70bccea4
AM		 7410
7411 off += 4;
7412 if (tls_ty & (TLS_LD | TLS_GD))
7413 off += 4;
7619e7c7 7414 }
70bccea4
AM		 7415 while (tls_m != 0);
7416
7417 off = *offp;
7418 *offp = off | 1;
7619e7c7
AM		 7419 }
7420
7421 if (off >= (bfd_vma) -2)
7422 abort ();
7423
70bccea4
AM		 7424 if ((tls_type & TLS_TLS) != 0)
7425 {
7426 if (tls_type != (TLS_TLS | TLS_LD))
7427 {
7428 if ((tls_mask & TLS_LD) != 0
7429 && !(h == NULL
f5385ebf 7430 || !h->def_dynamic))
70bccea4
AM		 7431 off += 8;
7432 if (tls_type != (TLS_TLS | TLS_GD))
7433 {
7434 if ((tls_mask & TLS_GD) != 0)
7435 off += 8;
7436 if (tls_type != (TLS_TLS | TLS_DTPREL))
7437 {
7438 if ((tls_mask & TLS_DTPREL) != 0)
7439 off += 4;
7440 }
7441 }
7442 }
7443 }
7444
e87d4038
AM		 7445 relocation = (htab->got->output_section->vma
7446 + htab->got->output_offset
7447 + off
7448 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM		 7449
7450 /* Addends on got relocations don't make much sense.
7451 x+off@got is actually x@got+off, and since the got is
7452 generated by a hash table traversal, the value in the
7453 got at entry m+n bears little relation to the entry m. */
7454 if (addend != 0)
25f53a85
AM		 7455 info->callbacks->einfo
7456 (_("%H: non-zero addend on %s reloc against `%s'\n"),
7457 input_bfd, input_section, rel->r_offset,
7b609f53 7458 howto->name,
7619e7c7
AM		 7459 sym_name);
7460 }
70bccea4 7461 break;
7619e7c7 7462
252b5132 7463 /* Relocations that need no special processing. */
7619e7c7 7464 case R_PPC_LOCAL24PC:
252b5132
RH		 7465 /* It makes no sense to point a local relocation
7466 at a symbol not in this object. */
7b609f53 7467 if (unresolved_reloc)
252b5132 7468 {
464e1740
ILT		 7469 if (! (*info->callbacks->undefined_symbol) (info,
7470 h->root.root.string,
7471 input_bfd,
7472 input_section,
5cc7c785 7473 rel->r_offset,
b34976b6
AM		 7474 TRUE))
7475 return FALSE;
252b5132
RH		 7476 continue;
7477 }
7478 break;
7479
7619e7c7
AM		 7480 case R_PPC_DTPREL16:
7481 case R_PPC_DTPREL16_LO:
7482 case R_PPC_DTPREL16_HI:
7483 case R_PPC_DTPREL16_HA:
e1918d23 7484 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 7485 break;
7486
70bccea4
AM		 7487 /* Relocations that may need to be propagated if this is a shared
7488 object. */
7619e7c7
AM		 7489 case R_PPC_TPREL16:
7490 case R_PPC_TPREL16_LO:
7491 case R_PPC_TPREL16_HI:
7492 case R_PPC_TPREL16_HA:
766bc656
AM		 7493 if (h != NULL
7494 && h->root.type == bfd_link_hash_undefweak
7495 && h->dynindx == -1)
7496 {
7497 /* Make this relocation against an undefined weak symbol
7498 resolve to zero. This is really just a tweak, since
7499 code using weak externs ought to check that they are
7500 defined before using them. */
7501 bfd_byte *p = contents + rel->r_offset - d_offset;
7502 unsigned int insn = bfd_get_32 (output_bfd, p);
7503 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
7504 if (insn != 0)
7505 bfd_put_32 (output_bfd, insn, p);
7506 break;
7507 }
e1918d23 7508 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 7509 /* The TPREL16 relocs shouldn't really be used in shared
7510 libs as they will result in DT_TEXTREL being set, but
7511 support them anyway. */
7512 goto dodyn;
7513
7514 case R_PPC_TPREL32:
e1918d23 7515 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM		 7516 goto dodyn;
7517
7518 case R_PPC_DTPREL32:
e1918d23 7519 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM		 7520 goto dodyn;
7521
e515b051
AM		 7522 case R_PPC_DTPMOD32:
7523 relocation = 1;
7524 addend = 0;
7525 goto dodyn;
7526
d7128ce4
AM		 7527 case R_PPC_REL16:
7528 case R_PPC_REL16_LO:
7529 case R_PPC_REL16_HI:
7530 case R_PPC_REL16_HA:
7531 break;
7532
7619e7c7 7533 case R_PPC_REL32:
625af618
AM		 7534 if (h == NULL || h == htab->elf.hgot)
7535 break;
7536 /* fall through */
7537
7538 case R_PPC_ADDR32:
7539 case R_PPC_ADDR16:
7540 case R_PPC_ADDR16_LO:
7541 case R_PPC_ADDR16_HI:
7542 case R_PPC_ADDR16_HA:
7543 case R_PPC_UADDR32:
7544 case R_PPC_UADDR16:
7545 goto dodyn;
7546
7547 case R_PPC_REL24:
7619e7c7
AM		 7548 case R_PPC_REL14:
7549 case R_PPC_REL14_BRTAKEN:
7550 case R_PPC_REL14_BRNTAKEN:
252b5132
RH		 7551 /* If these relocations are not to a named symbol, they can be
7552 handled right here, no need to bother the dynamic linker. */
89200bf8 7553 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 7554 || h == htab->elf.hgot)
252b5132 7555 break;
70bccea4 7556 /* fall through */
252b5132 7557
7619e7c7 7558 case R_PPC_ADDR24:
7619e7c7
AM		 7559 case R_PPC_ADDR14:
7560 case R_PPC_ADDR14_BRTAKEN:
7561 case R_PPC_ADDR14_BRNTAKEN:
625af618
AM		 7562 if (h != NULL && !info->shared)
7563 break;
7564 /* fall through */
7565
7619e7c7 7566 dodyn:
3348747a
NS		 7567 if ((input_section->flags & SEC_ALLOC) == 0
7568 || is_vxworks_tls)
c87b5a93 7569 break;
c87b5a93 7570
ee05f2fe 7571 if ((info->shared
89200bf8
AM		 7572 && !(h != NULL
7573 && ((h->root.type == bfd_link_hash_undefined
7574 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
7575 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
7576 || (h->root.type == bfd_link_hash_undefweak
7577 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 7578 && (must_be_dyn_reloc (info, r_type)
f6c52c13 7579 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM		 7580 || (ELIMINATE_COPY_RELOCS
7581 && !info->shared
ee05f2fe
AM		 7582 && h != NULL
7583 && h->dynindx != -1
f5385ebf 7584 && !h->non_got_ref
de972ffa 7585 && !h->def_regular))
252b5132 7586 {
0bb2d96a 7587 int skip;
91d6fa6a 7588 bfd_byte * loc;
252b5132 7589#ifdef DEBUG
55fd94b0
AM		 7590 fprintf (stderr, "ppc_elf_relocate_section needs to "
7591 "create relocation for %s\n",
70bccea4
AM		 7592 (h && h->root.root.string
7593 ? h->root.root.string : "<unknown>"));
252b5132
RH		 7594#endif
7595
7596 /* When generating a shared object, these relocations
70bccea4
AM		 7597 are copied into the output file to be resolved at run
7598 time. */
252b5132
RH		 7599 if (sreloc == NULL)
7600 {
25f23106
AM		 7601 sreloc = elf_section_data (input_section)->sreloc;
7602 if (!htab->elf.dynamic_sections_created)
7603 sreloc = htab->reliplt;
83bac4b0 7604 if (sreloc == NULL)
b34976b6 7605 return FALSE;
252b5132
RH		 7606 }
7607
0bb2d96a 7608 skip = 0;
5b914448
AM		 7609 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
7610 input_section,
7611 rel->r_offset);
0bb2d96a
JJ		 7612 if (outrel.r_offset == (bfd_vma) -1
7613 || outrel.r_offset == (bfd_vma) -2)
7614 skip = (int) outrel.r_offset;
252b5132
RH		 7615 outrel.r_offset += (input_section->output_section->vma
7616 + input_section->output_offset);
7617
7618 if (skip)
7619 memset (&outrel, 0, sizeof outrel);
89200bf8
AM		 7620 else if ((h != NULL
7621 && (h->root.type == bfd_link_hash_undefined
7622 || h->root.type == bfd_link_hash_undefweak))
7623 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 7624 {
7619e7c7 7625 unresolved_reloc = FALSE;
252b5132
RH		 7626 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
7627 outrel.r_addend = rel->r_addend;
7628 }
7629 else
7630 {
47388f4c
AM		 7631 outrel.r_addend = relocation + rel->r_addend;
7632
25f23106 7633 if (r_type != R_PPC_ADDR32)
252b5132 7634 {
89200bf8 7635 long indx = 0;
252b5132 7636
25f23106
AM		 7637 if (ifunc != NULL)
7638 {
7639 /* If we get here when building a static
7640 executable, then the libc startup function
7641 responsible for applying indirect function
7642 relocations is going to complain about
7643 the reloc type.
7644 If we get here when building a dynamic
7645 executable, it will be because we have
7646 a text relocation. The dynamic loader
7647 will set the text segment writable and
7648 non-executable to apply text relocations.
7649 So we'll segfault when trying to run the
7650 indirection function to resolve the reloc. */
25f53a85
AM		 7651 info->callbacks->einfo
7652 (_("%H: relocation %s for indirect "
7653 "function %s unsupported\n"),
7654 input_bfd, input_section, rel->r_offset,
25f23106
AM		 7655 howto->name,
7656 sym_name);
7657 ret = FALSE;
7658 }
cf35638d 7659 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 7660 ;
252b5132
RH		 7661 else if (sec == NULL || sec->owner == NULL)
7662 {
7663 bfd_set_error (bfd_error_bad_value);
89200bf8 7664 ret = FALSE;
252b5132
RH		 7665 }
7666 else
7667 {
7668 asection *osec;
7669
47388f4c
AM		 7670 /* We are turning this relocation into one
7671 against a section symbol. It would be
7672 proper to subtract the symbol's value,
7673 osec->vma, from the emitted reloc addend,
25f23106
AM		 7674 but ld.so expects buggy relocs.
7675 FIXME: Why not always use a zero index? */
252b5132
RH		 7676 osec = sec->output_section;
7677 indx = elf_section_data (osec)->dynindx;
74541ad4
AM		 7678 if (indx == 0)
7679 {
7680 osec = htab->elf.text_index_section;
7681 indx = elf_section_data (osec)->dynindx;
7682 }
7683 BFD_ASSERT (indx != 0);
252b5132 7684#ifdef DEBUG
74541ad4 7685 if (indx == 0)
e460dd0d 7686 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM		 7687 indx, osec->name, osec->flags,
7688 h->root.root.string);
252b5132
RH		 7689#endif
7690 }
7691
7692 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 7693 }
25f23106
AM		 7694 else if (ifunc != NULL)
7695 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7696 else
7697 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH		 7698 }
7699
947216bf
AM		 7700 loc = sreloc->contents;
7701 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
7702 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 7703
2243deae 7704 if (skip == -1)
252b5132 7705 continue;
2243deae
L		 7706
7707 /* This reloc will be computed at runtime. We clear the memory
7708 so that it contains predictable value. */
7709 if (! skip
7710 && ((input_section->flags & SEC_ALLOC) != 0
7711 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
7712 {
7713 relocation = howto->pc_relative ? outrel.r_offset : 0;
7714 addend = 0;
7715 break;
7716 }
252b5132 7717 }
252b5132
RH		 7718 break;
7719
32af9f6e
AM		 7720 case R_PPC_RELAX_PLT:
7721 case R_PPC_RELAX_PLTREL24:
de972ffa
AM		 7722 if (h != NULL)
7723 {
32af9f6e
AM		 7724 struct plt_entry *ent;
7725 bfd_vma got2_addend = 0;
7726
7727 if (r_type == R_PPC_RELAX_PLTREL24)
7728 {
7729 if (info->shared)
7730 got2_addend = addend;
7731 addend = 0;
7732 }
7733 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM		 7734 if (htab->plt_type == PLT_NEW)
7735 relocation = (htab->glink->output_section->vma
7736 + htab->glink->output_offset
7737 + ent->glink_offset);
7738 else
7739 relocation = (htab->plt->output_section->vma
7740 + htab->plt->output_offset
7741 + ent->plt.offset);
7742 }
b4a38de6
AM		 7743 /* Fall thru */
7744
32af9f6e
AM		 7745 case R_PPC_RELAX:
7746 if (info->shared)
7747 relocation -= (input_section->output_section->vma
7748 + input_section->output_offset
7749 + rel->r_offset - 4);
b4a38de6 7750
9abc968f
AM		 7751 {
7752 unsigned long t0;
7753 unsigned long t1;
7754
7755 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
7756 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
7757
7758 /* We're clearing the bits for R_PPC_ADDR16_HA
7759 and R_PPC_ADDR16_LO here. */
7760 t0 &= ~0xffff;
7761 t1 &= ~0xffff;
7762
7763 /* t0 is HA, t1 is LO */
7764 relocation += addend;
7765 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
7766 t1 |= relocation & 0xffff;
7767
7768 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
7769 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
9bc4e62b
NS		 7770
7771 /* Rewrite the reloc and convert one of the trailing nop
7772 relocs to describe this relocation. */
7773 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
7774 /* The relocs are at the bottom 2 bytes */
7775 rel[0].r_offset += 2;
7776 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
7777 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7778 rel[1].r_offset += 4;
7779 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7780 rel++;
9abc968f 7781 }
8517fae7 7782 continue;
deaaf2f3 7783
70bccea4 7784 /* Indirect .sdata relocation. */
7619e7c7 7785 case R_PPC_EMB_SDAI16:
c9a2f333 7786 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM		 7787 if (!is_static_defined (htab->sdata[0].sym))
7788 {
7789 unresolved_reloc = TRUE;
7790 break;
7791 }
7619e7c7 7792 relocation
76750a2f
AM		 7793 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
7794 h, relocation, rel);
bd6c6e2b 7795 addend = 0;
252b5132
RH		 7796 break;
7797
70bccea4 7798 /* Indirect .sdata2 relocation. */
7619e7c7 7799 case R_PPC_EMB_SDA2I16:
c9a2f333 7800 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM		 7801 if (!is_static_defined (htab->sdata[1].sym))
7802 {
7803 unresolved_reloc = TRUE;
7804 break;
7805 }
7619e7c7 7806 relocation
76750a2f
AM		 7807 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
7808 h, relocation, rel);
bd6c6e2b 7809 addend = 0;
252b5132
RH		 7810 break;
7811
70bccea4
AM		 7812 /* Handle the TOC16 reloc. We want to use the offset within the .got
7813 section, not the actual VMA. This is appropriate when generating
7814 an embedded ELF object, for which the .got section acts like the
7815 AIX .toc section. */
7619e7c7 7816 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM		 7817 if (sec == NULL || sec->output_section == NULL)
7818 {
7819 unresolved_reloc = TRUE;
7820 break;
7821 }
7822 BFD_ASSERT (strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
f12123c0 7823 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
252b5132 7824
3b4f3a11 7825 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH		 7826 break;
7827
7619e7c7 7828 case R_PPC_PLTREL24:
e054468f 7829 if (h == NULL || ifunc != NULL)
6d78d0b9 7830 break;
252b5132 7831 /* Relocation is to the entry for this symbol in the
70bccea4 7832 procedure linkage table. */
a6aa5195 7833 {
a877a2b6
AM		 7834 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
7835 info->shared ? addend : 0);
a6aa5195
AM		 7836 addend = 0;
7837 if (ent == NULL
7838 || htab->plt == NULL)
7839 {
7840 /* We didn't make a PLT entry for this symbol. This
7841 happens when statically linking PIC code, or when
7842 using -Bsymbolic. */
7843 break;
7844 }
252b5132 7845
a6aa5195 7846 unresolved_reloc = FALSE;
4a3dc543 7847 if (htab->plt_type == PLT_NEW)
a6aa5195
AM		 7848 relocation = (htab->glink->output_section->vma
7849 + htab->glink->output_offset
7850 + ent->glink_offset);
7851 else
7852 relocation = (htab->plt->output_section->vma
7853 + htab->plt->output_offset
7854 + ent->plt.offset);
7855 }
8da6118f 7856 break;
252b5132 7857
70bccea4 7858 /* Relocate against _SDA_BASE_. */
7619e7c7 7859 case R_PPC_SDAREL16:
252b5132
RH		 7860 {
7861 const char *name;
bd6c6e2b 7862 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 7863
bd6c6e2b
AM		 7864 if (sec == NULL
7865 || sec->output_section == NULL
7866 || !is_static_defined (sda))
3b4f3a11
AM		 7867 {
7868 unresolved_reloc = TRUE;
7869 break;
7870 }
bd6c6e2b 7871 addend -= SYM_VAL (sda);
3b4f3a11 7872
252b5132 7873 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 7874 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 7875 && (name[6] == 0 || name[6] == '.'))
0112cd26 7876 || (CONST_STRNEQ (name, ".sbss")
5f819128 7877 && (name[5] == 0 || name[5] == '.'))))
252b5132 7878 {
25f53a85 7879 info->callbacks->einfo
d003868e 7880 (_("%B: the target (%s) of a %s relocation is "
25f53a85 7881 "in the wrong output section (%s)\n"),
d003868e 7882 input_bfd,
55fd94b0
AM		 7883 sym_name,
7884 howto->name,
7885 name);
252b5132 7886 }
252b5132
RH		 7887 }
7888 break;
7889
70bccea4 7890 /* Relocate against _SDA2_BASE_. */
7619e7c7 7891 case R_PPC_EMB_SDA2REL:
252b5132
RH		 7892 {
7893 const char *name;
bd6c6e2b 7894 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 7895
bd6c6e2b
AM		 7896 if (sec == NULL
7897 || sec->output_section == NULL
7898 || !is_static_defined (sda))
3b4f3a11
AM		 7899 {
7900 unresolved_reloc = TRUE;
7901 break;
7902 }
bd6c6e2b 7903 addend -= SYM_VAL (sda);
3b4f3a11 7904
252b5132 7905 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26
NC		 7906 if (! (CONST_STRNEQ (name, ".sdata2")
7907 || CONST_STRNEQ (name, ".sbss2")))
252b5132 7908 {
25f53a85 7909 info->callbacks->einfo
d003868e 7910 (_("%B: the target (%s) of a %s relocation is "
25f53a85 7911 "in the wrong output section (%s)\n"),
d003868e 7912 input_bfd,
55fd94b0
AM		 7913 sym_name,
7914 howto->name,
7915 name);
252b5132 7916 }
252b5132
RH		 7917 }
7918 break;
7919
70bccea4 7920 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7
AM		 7921 case R_PPC_EMB_SDA21:
7922 case R_PPC_EMB_RELSDA:
252b5132
RH		 7923 {
7924 const char *name;
7925 int reg;
bd6c6e2b 7926 struct elf_link_hash_entry *sda = NULL;
252b5132 7927
3b4f3a11
AM		 7928 if (sec == NULL || sec->output_section == NULL)
7929 {
7930 unresolved_reloc = TRUE;
7931 break;
7932 }
7933
252b5132 7934 name = bfd_get_section_name (abfd, sec->output_section);
0112cd26 7935 if (((CONST_STRNEQ (name, ".sdata")
5f819128 7936 && (name[6] == 0 || name[6] == '.'))
0112cd26 7937 || (CONST_STRNEQ (name, ".sbss")
5f819128 7938 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH		 7939 {
7940 reg = 13;
bd6c6e2b 7941 sda = htab->sdata[0].sym;
252b5132 7942 }
0112cd26
NC		 7943 else if (CONST_STRNEQ (name, ".sdata2")
7944 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH		 7945 {
7946 reg = 2;
bd6c6e2b 7947 sda = htab->sdata[1].sym;
252b5132 7948 }
8da6118f
KH		 7949 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
7950 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH		 7951 {
7952 reg = 0;
7953 }
252b5132
RH		 7954 else
7955 {
25f53a85 7956 info->callbacks->einfo
d003868e 7957 (_("%B: the target (%s) of a %s relocation is "
25f53a85 7958 "in the wrong output section (%s)\n"),
d003868e 7959 input_bfd,
55fd94b0
AM		 7960 sym_name,
7961 howto->name,
7962 name);
252b5132
RH		 7963
7964 bfd_set_error (bfd_error_bad_value);
b34976b6 7965 ret = FALSE;
252b5132
RH		 7966 continue;
7967 }
7968
bd6c6e2b
AM		 7969 if (sda != NULL)
7970 {
7971 if (!is_static_defined (sda))
7972 {
7973 unresolved_reloc = TRUE;
7974 break;
7975 }
7976 addend -= SYM_VAL (sda);
7977 }
7978
252b5132 7979 if (r_type == R_PPC_EMB_SDA21)
91d6fa6a
NC		 7980 {
7981 bfd_vma insn; /* Fill in register field. */
7982
7619e7c7 7983 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 7984 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 7985 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH		 7986 }
7987 }
7988 break;
7989
70bccea4 7990 /* Relocate against the beginning of the section. */
7619e7c7
AM		 7991 case R_PPC_SECTOFF:
7992 case R_PPC_SECTOFF_LO:
7993 case R_PPC_SECTOFF_HI:
7994 case R_PPC_SECTOFF_HA:
3b4f3a11
AM		 7995 if (sec == NULL || sec->output_section == NULL)
7996 {
7997 unresolved_reloc = TRUE;
7998 break;
7999 }
252b5132 8000 addend -= sec->output_section->vma;
252b5132
RH		 8001 break;
8002
70bccea4 8003 /* Negative relocations. */
7619e7c7
AM		 8004 case R_PPC_EMB_NADDR32:
8005 case R_PPC_EMB_NADDR16:
8006 case R_PPC_EMB_NADDR16_LO:
8007 case R_PPC_EMB_NADDR16_HI:
8008 case R_PPC_EMB_NADDR16_HA:
8da6118f 8009 addend -= 2 * relocation;
252b5132
RH		 8010 break;
8011
7619e7c7
AM		 8012 case R_PPC_COPY:
8013 case R_PPC_GLOB_DAT:
8014 case R_PPC_JMP_SLOT:
8015 case R_PPC_RELATIVE:
e054468f 8016 case R_PPC_IRELATIVE:
7619e7c7
AM		 8017 case R_PPC_PLT32:
8018 case R_PPC_PLTREL32:
8019 case R_PPC_PLT16_LO:
8020 case R_PPC_PLT16_HI:
8021 case R_PPC_PLT16_HA:
8022 case R_PPC_ADDR30:
8023 case R_PPC_EMB_RELSEC16:
8024 case R_PPC_EMB_RELST_LO:
8025 case R_PPC_EMB_RELST_HI:
8026 case R_PPC_EMB_RELST_HA:
8027 case R_PPC_EMB_BIT_FLD:
25f53a85
AM		 8028 info->callbacks->einfo
8029 (_("%B: relocation %s is not yet supported for symbol %s\n"),
d003868e 8030 input_bfd,
7619e7c7
AM		 8031 howto->name,
8032 sym_name);
252b5132
RH		 8033
8034 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8035 ret = FALSE;
252b5132 8036 continue;
7619e7c7 8037 }
252b5132 8038
7619e7c7
AM		 8039 /* Do any further special processing. */
8040 switch (r_type)
8041 {
8042 default:
8043 break;
8044
8045 case R_PPC_ADDR16_HA:
d7128ce4 8046 case R_PPC_REL16_HA:
7619e7c7
AM		 8047 case R_PPC_SECTOFF_HA:
8048 case R_PPC_TPREL16_HA:
8049 case R_PPC_DTPREL16_HA:
7619e7c7
AM		 8050 case R_PPC_EMB_NADDR16_HA:
8051 case R_PPC_EMB_RELST_HA:
8052 /* It's just possible that this symbol is a weak symbol
7b609f53 8053 that's not actually defined anywhere. In that case,
7619e7c7
AM		 8054 'sec' would be NULL, and we should leave the symbol
8055 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 8056 if (sec == NULL)
8057 break;
8058 /* Fall thru */
8059
8060 case R_PPC_PLT16_HA:
8061 case R_PPC_GOT16_HA:
8062 case R_PPC_GOT_TLSGD16_HA:
8063 case R_PPC_GOT_TLSLD16_HA:
8064 case R_PPC_GOT_TPREL16_HA:
8065 case R_PPC_GOT_DTPREL16_HA:
8066 /* Add 0x10000 if sign bit in 0:15 is set.
8067 Bits 0:15 are not used. */
8068 addend += 0x8000;
7619e7c7 8069 break;
252b5132
RH		 8070 }
8071
252b5132 8072#ifdef DEBUG
55fd94b0
AM		 8073 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8074 "offset = %ld, addend = %ld\n",
252b5132 8075 howto->name,
8da6118f 8076 (int) r_type,
252b5132
RH		 8077 sym_name,
8078 r_symndx,
7619e7c7 8079 (long) rel->r_offset,
8da6118f 8080 (long) addend);
252b5132
RH		 8081#endif
8082
7619e7c7
AM		 8083 if (unresolved_reloc
8084 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 8085 && h->def_dynamic))
7619e7c7 8086 {
25f53a85
AM		 8087 info->callbacks->einfo
8088 (_("%H: unresolvable %s relocation against symbol `%s'\n"),
8089 input_bfd, input_section, rel->r_offset,
7b609f53 8090 howto->name,
7619e7c7
AM		 8091 sym_name);
8092 ret = FALSE;
8093 }
8094
252b5132
RH		 8095 r = _bfd_final_link_relocate (howto,
8096 input_bfd,
8097 input_section,
8098 contents,
7619e7c7 8099 rel->r_offset,
252b5132
RH		 8100 relocation,
8101 addend);
8102
7619e7c7 8103 if (r != bfd_reloc_ok)
252b5132 8104 {
7619e7c7 8105 if (r == bfd_reloc_overflow)
252b5132 8106 {
7619e7c7
AM		 8107 if (warned)
8108 continue;
8109 if (h != NULL
8110 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH		 8111 && howto->pc_relative)
8112 {
8113 /* Assume this is a call protected by other code that
8114 detect the symbol is undefined. If this is the case,
8115 we can safely ignore the overflow. If not, the
8116 program is hosed anyway, and a little warning isn't
8117 going to help. */
252b5132 8118
dc1bc0c9
RH		 8119 continue;
8120 }
252b5132 8121
7619e7c7 8122 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 8123 (h ? &h->root : NULL),
7619e7c7
AM		 8124 sym_name,
8125 howto->name,
8126 rel->r_addend,
8127 input_bfd,
8128 input_section,
8129 rel->r_offset))
8130 return FALSE;
dc1bc0c9
RH		 8131 }
8132 else
8133 {
25f53a85
AM		 8134 info->callbacks->einfo
8135 (_("%H: %s reloc against `%s': error %d\n"),
8136 input_bfd, input_section, rel->r_offset,
8137 howto->name, sym_name, (int) r);
7619e7c7 8138 ret = FALSE;
252b5132
RH		 8139 }
8140 }
8141 }
8142
252b5132
RH		 8143#ifdef DEBUG
8144 fprintf (stderr, "\n");
8145#endif
8146
8147 return ret;
8148}
252b5132 8149\f
25dbc73a
AM		 8150/* Finish up dynamic symbol handling. We set the contents of various
8151 dynamic sections here. */
c5fccbec 8152
b34976b6 8153static bfd_boolean
25dbc73a
AM		 8154ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
8155 struct bfd_link_info *info,
8156 struct elf_link_hash_entry *h,
8157 Elf_Internal_Sym *sym)
e1a9cb8e 8158{
25dbc73a 8159 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM		 8160 struct plt_entry *ent;
8161 bfd_boolean doneone;
e1a9cb8e 8162
25dbc73a
AM		 8163#ifdef DEBUG
8164 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
8165 h->root.root.string);
8166#endif
e1a9cb8e 8167
25dbc73a
AM		 8168 htab = ppc_elf_hash_table (info);
8169 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 8170
a6aa5195
AM		 8171 doneone = FALSE;
8172 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8173 if (ent->plt.offset != (bfd_vma) -1)
8174 {
8175 if (!doneone)
8176 {
8177 Elf_Internal_Rela rela;
8178 bfd_byte *loc;
8179 bfd_vma reloc_index;
e1a9cb8e 8180
e054468f 8181 if (htab->plt_type == PLT_NEW
25f23106
AM		 8182 || !htab->elf.dynamic_sections_created
8183 || h->dynindx == -1)
9d8504b1
PB		 8184 reloc_index = ent->plt.offset / 4;
8185 else
8186 {
8187 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
8188 / htab->plt_slot_size);
8189 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 8190 && htab->plt_type == PLT_OLD)
9d8504b1
PB		 8191 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
8192 }
8193
a6aa5195
AM		 8194 /* This symbol has an entry in the procedure linkage table.
8195 Set it up. */
e054468f 8196 if (htab->plt_type == PLT_VXWORKS
25f23106
AM		 8197 && htab->elf.dynamic_sections_created
8198 && h->dynindx != -1)
a6aa5195 8199 {
9d8504b1
PB		 8200 bfd_vma got_offset;
8201 const bfd_vma *plt_entry;
5b914448 8202
9d8504b1
PB		 8203 /* The first three entries in .got.plt are reserved. */
8204 got_offset = (reloc_index + 3) * 4;
8205
8206 /* Use the right PLT. */
8207 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
8208 : ppc_elf_vxworks_plt_entry;
8209
8210 /* Fill in the .plt on VxWorks. */
8211 if (info->shared)
8212 {
9d8504b1 8213 bfd_put_32 (output_bfd,
e87d4038 8214 plt_entry[0] | PPC_HA (got_offset),
9d8504b1
PB		 8215 htab->plt->contents + ent->plt.offset + 0);
8216 bfd_put_32 (output_bfd,
e87d4038 8217 plt_entry[1] | PPC_LO (got_offset),
9d8504b1
PB		 8218 htab->plt->contents + ent->plt.offset + 4);
8219 }
8220 else
8221 {
e87d4038 8222 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB		 8223
8224 bfd_put_32 (output_bfd,
e87d4038 8225 plt_entry[0] | PPC_HA (got_loc),
9d8504b1
PB		 8226 htab->plt->contents + ent->plt.offset + 0);
8227 bfd_put_32 (output_bfd,
e87d4038 8228 plt_entry[1] | PPC_LO (got_loc),
9d8504b1
PB		 8229 htab->plt->contents + ent->plt.offset + 4);
8230 }
8231
8232 bfd_put_32 (output_bfd, plt_entry[2],
8233 htab->plt->contents + ent->plt.offset + 8);
8234 bfd_put_32 (output_bfd, plt_entry[3],
8235 htab->plt->contents + ent->plt.offset + 12);
8236
8237 /* This instruction is an immediate load. The value loaded is
8238 the byte offset of the R_PPC_JMP_SLOT relocation from the
8239 start of the .rela.plt section. The value is stored in the
8240 low-order 16 bits of the load instruction. */
8241 /* NOTE: It appears that this is now an index rather than a
8242 prescaled offset. */
5b914448 8243 bfd_put_32 (output_bfd,
9d8504b1
PB		 8244 plt_entry[4] | reloc_index,
8245 htab->plt->contents + ent->plt.offset + 16);
8246 /* This instruction is a PC-relative branch whose target is
8247 the start of the PLT section. The address of this branch
8248 instruction is 20 bytes beyond the start of this PLT entry.
8249 The address is encoded in bits 6-29, inclusive. The value
8250 stored is right-shifted by two bits, permitting a 26-bit
8251 offset. */
5b914448
AM		 8252 bfd_put_32 (output_bfd,
8253 (plt_entry[5]
9d8504b1
PB		 8254 | (-(ent->plt.offset + 20) & 0x03fffffc)),
8255 htab->plt->contents + ent->plt.offset + 20);
8256 bfd_put_32 (output_bfd, plt_entry[6],
8257 htab->plt->contents + ent->plt.offset + 24);
8258 bfd_put_32 (output_bfd, plt_entry[7],
8259 htab->plt->contents + ent->plt.offset + 28);
8260
8261 /* Fill in the GOT entry corresponding to this PLT slot with
8262 the address immediately after the the "bctr" instruction
8263 in this PLT entry. */
8264 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
8265 + htab->plt->output_offset
8266 + ent->plt.offset + 16),
8267 htab->sgotplt->contents + got_offset);
8268
8269 if (!info->shared)
8270 {
8271 /* Fill in a couple of entries in .rela.plt.unloaded. */
8272 loc = htab->srelplt2->contents
8273 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
8274 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
8275 * sizeof (Elf32_External_Rela));
8276
8277 /* Provide the @ha relocation for the first instruction. */
8278 rela.r_offset = (htab->plt->output_section->vma
8279 + htab->plt->output_offset
8280 + ent->plt.offset + 2);
636ce3f5 8281 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 8282 R_PPC_ADDR16_HA);
8283 rela.r_addend = got_offset;
8284 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8285 loc += sizeof (Elf32_External_Rela);
8286
8287 /* Provide the @l relocation for the second instruction. */
8288 rela.r_offset = (htab->plt->output_section->vma
8289 + htab->plt->output_offset
8290 + ent->plt.offset + 6);
636ce3f5 8291 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB		 8292 R_PPC_ADDR16_LO);
8293 rela.r_addend = got_offset;
8294 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8295 loc += sizeof (Elf32_External_Rela);
8296
8297 /* Provide a relocation for the GOT entry corresponding to this
8298 PLT slot. Point it at the middle of the .plt entry. */
8299 rela.r_offset = (htab->sgotplt->output_section->vma
8300 + htab->sgotplt->output_offset
8301 + got_offset);
7325306f 8302 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB		 8303 R_PPC_ADDR32);
8304 rela.r_addend = ent->plt.offset + 16;
8305 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8306 }
8307
8308 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
8309 In particular, the offset for the relocation is not the
8310 address of the PLT entry for this function, as specified
8311 by the ABI. Instead, the offset is set to the address of
8312 the GOT slot for this function. See EABI 4.4.4.1. */
8313 rela.r_offset = (htab->sgotplt->output_section->vma
8314 + htab->sgotplt->output_offset
8315 + got_offset);
8316
a6aa5195
AM		 8317 }
8318 else
8319 {
e054468f 8320 asection *splt = htab->plt;
25f23106
AM		 8321 if (!htab->elf.dynamic_sections_created
8322 || h->dynindx == -1)
e054468f
AM		 8323 splt = htab->iplt;
8324
8325 rela.r_offset = (splt->output_section->vma
8326 + splt->output_offset
9d8504b1 8327 + ent->plt.offset);
e054468f 8328 if (htab->plt_type == PLT_OLD
25f23106
AM		 8329 || !htab->elf.dynamic_sections_created
8330 || h->dynindx == -1)
9d8504b1
PB		 8331 {
8332 /* We don't need to fill in the .plt. The ppc dynamic
8333 linker will fill it in. */
8334 }
8335 else
8336 {
8337 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
8338 + htab->glink->output_section->vma
8339 + htab->glink->output_offset);
8340 bfd_put_32 (output_bfd, val,
e054468f 8341 splt->contents + ent->plt.offset);
9d8504b1 8342 }
a6aa5195 8343 }
e1a9cb8e 8344
a6aa5195 8345 /* Fill in the entry in the .rela.plt section. */
a6aa5195 8346 rela.r_addend = 0;
e054468f
AM		 8347 if (!htab->elf.dynamic_sections_created
8348 || h->dynindx == -1)
8349 {
8350 BFD_ASSERT (h->type == STT_GNU_IFUNC
8351 && h->def_regular
8352 && (h->root.type == bfd_link_hash_defined
8353 || h->root.type == bfd_link_hash_defweak));
8354 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8355 rela.r_addend = SYM_VAL (h);
8356 }
8357 else
8358 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 8359
25f23106
AM		 8360 if (!htab->elf.dynamic_sections_created
8361 || h->dynindx == -1)
8362 loc = (htab->reliplt->contents
8363 + (htab->reliplt->reloc_count++
8364 * sizeof (Elf32_External_Rela)));
e054468f 8365 else
25f23106
AM		 8366 loc = (htab->relplt->contents
8367 + reloc_index * sizeof (Elf32_External_Rela));
a6aa5195 8368 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 8369
a6aa5195
AM		 8370 if (!h->def_regular)
8371 {
0eb4a168
AM		 8372 /* Mark the symbol as undefined, rather than as
8373 defined in the .plt section. Leave the value if
8374 there were any relocations where pointer equality
8375 matters (this is a clue for the dynamic linker, to
8376 make function pointer comparisons work between an
8377 application and shared library), otherwise set it
8378 to zero. */
a6aa5195 8379 sym->st_shndx = SHN_UNDEF;
0eb4a168 8380 if (!h->pointer_equality_needed)
a6aa5195 8381 sym->st_value = 0;
0eb4a168
AM		 8382 else if (!h->ref_regular_nonweak)
8383 {
625af618
AM		 8384 /* This breaks function pointer comparisons, but
8385 that is better than breaking tests for a NULL
0eb4a168 8386 function pointer. */
0eb4a168
AM		 8387 sym->st_value = 0;
8388 }
a6aa5195 8389 }
de972ffa
AM		 8390 else if (h->type == STT_GNU_IFUNC
8391 && !info->shared)
8392 {
8393 /* Set the value of ifunc symbols in a non-pie
8394 executable to the glink entry. This is to avoid
8395 text relocations. We can't do this for ifunc in
8396 allocate_dynrelocs, as we do for normal dynamic
8397 function symbols with plt entries, because we need
8398 to keep the original value around for the ifunc
8399 relocation. */
8400 sym->st_shndx = (_bfd_elf_section_from_bfd_section
8401 (output_bfd, htab->glink->output_section));
5b914448
AM		 8402 sym->st_value = (ent->glink_offset
8403 + htab->glink->output_offset
de972ffa
AM		 8404 + htab->glink->output_section->vma);
8405 }
a6aa5195
AM		 8406 doneone = TRUE;
8407 }
e1a9cb8e 8408
e054468f 8409 if (htab->plt_type == PLT_NEW
25f23106
AM		 8410 || !htab->elf.dynamic_sections_created
8411 || h->dynindx == -1)
a6aa5195 8412 {
a7f2871e 8413 unsigned char *p;
e054468f 8414 asection *splt = htab->plt;
25f23106
AM		 8415 if (!htab->elf.dynamic_sections_created
8416 || h->dynindx == -1)
e054468f 8417 splt = htab->iplt;
e1a9cb8e 8418
a7f2871e
AM		 8419 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
8420
8421 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
8422 {
8423 bfd_put_32 (output_bfd, LWZ_11_3, p);
8424 p += 4;
8425 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
8426 p += 4;
8427 bfd_put_32 (output_bfd, MR_0_3, p);
8428 p += 4;
8429 bfd_put_32 (output_bfd, CMPWI_11_0, p);
8430 p += 4;
8431 bfd_put_32 (output_bfd, ADD_3_12_2, p);
8432 p += 4;
8433 bfd_put_32 (output_bfd, BEQLR, p);
8434 p += 4;
8435 bfd_put_32 (output_bfd, MR_3_0, p);
8436 p += 4;
8437 bfd_put_32 (output_bfd, NOP, p);
8438 p += 4;
8439 }
8440
8441 write_glink_stub (ent, splt, p, info);
e1a9cb8e 8442
a877a2b6 8443 if (!info->shared)
e054468f
AM		 8444 /* We only need one non-PIC glink stub. */
8445 break;
a6aa5195
AM		 8446 }
8447 else
8448 break;
8449 }
e1a9cb8e 8450
25dbc73a
AM		 8451 if (h->needs_copy)
8452 {
8453 asection *s;
8454 Elf_Internal_Rela rela;
8455 bfd_byte *loc;
e1a9cb8e 8456
25dbc73a 8457 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 8458
25dbc73a
AM		 8459#ifdef DEBUG
8460 fprintf (stderr, ", copy");
8461#endif
e1a9cb8e 8462
25dbc73a 8463 BFD_ASSERT (h->dynindx != -1);
86bbe32f 8464
4dc4a9a5 8465 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM		 8466 s = htab->relsbss;
8467 else
8468 s = htab->relbss;
8469 BFD_ASSERT (s != NULL);
e1a9cb8e 8470
e87d4038 8471 rela.r_offset = SYM_VAL (h);
25dbc73a
AM		 8472 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
8473 rela.r_addend = 0;
8474 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
8475 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8476 }
e1a9cb8e 8477
25dbc73a
AM		 8478#ifdef DEBUG
8479 fprintf (stderr, "\n");
8480#endif
e1a9cb8e 8481
25dbc73a 8482 /* Mark some specially defined symbols as absolute. */
9d8504b1
PB		 8483 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
8484 || (!htab->is_vxworks
8485 && (h == htab->elf.hgot
8486 || strcmp (h->root.root.string,
8487 "_PROCEDURE_LINKAGE_TABLE_") == 0)))
25dbc73a 8488 sym->st_shndx = SHN_ABS;
e1a9cb8e 8489
25dbc73a
AM		 8490 return TRUE;
8491}
8492\f
8493static enum elf_reloc_type_class
8494ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 8495{
25dbc73a
AM		 8496 switch (ELF32_R_TYPE (rela->r_info))
8497 {
8498 case R_PPC_RELATIVE:
8499 return reloc_class_relative;
8500 case R_PPC_REL24:
8501 case R_PPC_ADDR24:
8502 case R_PPC_JMP_SLOT:
8503 return reloc_class_plt;
8504 case R_PPC_COPY:
8505 return reloc_class_copy;
8506 default:
8507 return reloc_class_normal;
8508 }
e1a9cb8e 8509}
25dbc73a
AM		 8510\f
8511/* Finish up the dynamic sections. */
e1a9cb8e 8512
25dbc73a
AM		 8513static bfd_boolean
8514ppc_elf_finish_dynamic_sections (bfd *output_bfd,
8515 struct bfd_link_info *info)
e1a9cb8e 8516{
25dbc73a 8517 asection *sdyn;
9d8504b1 8518 asection *splt;
25dbc73a 8519 struct ppc_elf_link_hash_table *htab;
1fe44d79 8520 bfd_vma got;
e87d4038
AM		 8521 bfd *dynobj;
8522 bfd_boolean ret = TRUE;
e1a9cb8e 8523
25dbc73a
AM		 8524#ifdef DEBUG
8525 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
8526#endif
6b0817e5 8527
25dbc73a 8528 htab = ppc_elf_hash_table (info);
9d8504b1
PB		 8529 dynobj = elf_hash_table (info)->dynobj;
8530 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8531 if (htab->is_vxworks)
5b914448 8532 splt = bfd_get_section_by_name (dynobj, ".plt");
9d8504b1
PB		 8533 else
8534 splt = NULL;
e1a9cb8e 8535
1fe44d79
AM		 8536 got = 0;
8537 if (htab->elf.hgot != NULL)
e87d4038 8538 got = SYM_VAL (htab->elf.hgot);
1fe44d79 8539
25dbc73a 8540 if (htab->elf.dynamic_sections_created)
e1a9cb8e 8541 {
25dbc73a 8542 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 8543
25dbc73a 8544 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 8545
25dbc73a
AM		 8546 dyncon = (Elf32_External_Dyn *) sdyn->contents;
8547 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
8548 for (; dyncon < dynconend; dyncon++)
8549 {
8550 Elf_Internal_Dyn dyn;
8551 asection *s;
e1a9cb8e 8552
9d8504b1 8553 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 8554
25dbc73a
AM		 8555 switch (dyn.d_tag)
8556 {
8557 case DT_PLTGOT:
9d8504b1
PB		 8558 if (htab->is_vxworks)
8559 s = htab->sgotplt;
8560 else
8561 s = htab->plt;
25dbc73a
AM		 8562 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8563 break;
86bbe32f 8564
25dbc73a
AM		 8565 case DT_PLTRELSZ:
8566 dyn.d_un.d_val = htab->relplt->size;
8567 break;
e1a9cb8e 8568
25dbc73a
AM		 8569 case DT_JMPREL:
8570 s = htab->relplt;
8571 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8572 break;
2f89ff8d 8573
1fe44d79
AM		 8574 case DT_PPC_GOT:
8575 dyn.d_un.d_ptr = got;
d7128ce4
AM		 8576 break;
8577
9d8504b1
PB		 8578 case DT_RELASZ:
8579 if (htab->is_vxworks)
8580 {
8581 if (htab->relplt)
8582 dyn.d_un.d_ptr -= htab->relplt->size;
8583 break;
8584 }
8585 continue;
8586
25dbc73a 8587 default:
7a2b07ff
NS		 8588 if (htab->is_vxworks
8589 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
8590 break;
25dbc73a
AM		 8591 continue;
8592 }
4c45e5c9 8593
25dbc73a
AM		 8594 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
8595 }
8596 }
4c45e5c9 8597
3b36f7e6 8598 if (htab->got != NULL)
25dbc73a 8599 {
e79f5955
AM		 8600 if (htab->elf.hgot->root.u.def.section == htab->got
8601 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
e87d4038 8602 {
e79f5955 8603 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 8604
e87d4038
AM		 8605 p += htab->elf.hgot->root.u.def.value;
8606 if (htab->plt_type == PLT_OLD)
e79f5955
AM		 8607 {
8608 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
8609 so that a function can easily find the address of
8610 _GLOBAL_OFFSET_TABLE_. */
8611 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
8612 < htab->elf.hgot->root.u.def.section->size);
8613 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
8614 }
3b36f7e6 8615
e87d4038 8616 if (sdyn != NULL)
e79f5955
AM		 8617 {
8618 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
8619 BFD_ASSERT (htab->elf.hgot->root.u.def.value
8620 < htab->elf.hgot->root.u.def.section->size);
8621 bfd_put_32 (output_bfd, val, p);
8622 }
e87d4038
AM		 8623 }
8624 else
8625 {
25f53a85
AM		 8626 info->callbacks->einfo (_("%s not defined in linker created %s\n"),
8627 htab->elf.hgot->root.root.string,
8628 (htab->sgotplt != NULL
8629 ? htab->sgotplt->name : htab->got->name));
e87d4038
AM		 8630 bfd_set_error (bfd_error_bad_value);
8631 ret = FALSE;
8632 }
25dbc73a
AM		 8633
8634 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
8635 }
8636
9d8504b1
PB		 8637 /* Fill in the first entry in the VxWorks procedure linkage table. */
8638 if (splt && splt->size > 0)
8639 {
8640 /* Use the right PLT. */
5b914448
AM		 8641 const bfd_vma *plt_entry = (info->shared
8642 ? ppc_elf_vxworks_pic_plt0_entry
8643 : ppc_elf_vxworks_plt0_entry);
9d8504b1
PB		 8644
8645 if (!info->shared)
8646 {
e87d4038 8647 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 8648
e87d4038 8649 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 8650 splt->contents + 0);
e87d4038 8651 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB		 8652 splt->contents + 4);
8653 }
8654 else
8655 {
8656 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
8657 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
8658 }
8659 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
8660 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
8661 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
8662 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
8663 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
8664 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
8665
8666 if (! info->shared)
8667 {
8668 Elf_Internal_Rela rela;
8669 bfd_byte *loc;
8670
8671 loc = htab->srelplt2->contents;
8672
8673 /* Output the @ha relocation for the first instruction. */
8674 rela.r_offset = (htab->plt->output_section->vma
8675 + htab->plt->output_offset
8676 + 2);
636ce3f5 8677 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 8678 rela.r_addend = 0;
8679 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8680 loc += sizeof (Elf32_External_Rela);
5b914448 8681
9d8504b1
PB		 8682 /* Output the @l relocation for the second instruction. */
8683 rela.r_offset = (htab->plt->output_section->vma
8684 + htab->plt->output_offset
8685 + 6);
636ce3f5 8686 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 8687 rela.r_addend = 0;
8688 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
8689 loc += sizeof (Elf32_External_Rela);
8690
8691 /* Fix up the remaining relocations. They may have the wrong
8692 symbol index for _G_O_T_ or _P_L_T_ depending on the order
8693 in which symbols were output. */
8694 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
8695 {
8696 Elf_Internal_Rela rel;
8697
8698 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 8699 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB		 8700 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
8701 loc += sizeof (Elf32_External_Rela);
8702
8703 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 8704 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB		 8705 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
8706 loc += sizeof (Elf32_External_Rela);
8707
8708 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 8709 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB		 8710 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
8711 loc += sizeof (Elf32_External_Rela);
8712 }
8713 }
8714 }
8715
e054468f
AM		 8716 if (htab->glink != NULL
8717 && htab->glink->contents != NULL
8718 && htab->elf.dynamic_sections_created)
d7128ce4
AM		 8719 {
8720 unsigned char *p;
8721 unsigned char *endp;
a6aa5195 8722 bfd_vma res0;
d7128ce4 8723 unsigned int i;
a6aa5195
AM		 8724
8725 /*
8726 * PIC glink code is the following:
8727 *
8728 * # ith PLT code stub.
8729 * addis 11,30,(plt+(i-1)*4-got)@ha
8730 * lwz 11,(plt+(i-1)*4-got)@l(11)
8731 * mtctr 11
8732 * bctr
8733 *
8734 * # A table of branches, one for each plt entry.
176a0d42 8735 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM		 8736 * # addresses, so (r11 - res_0) gives the plt index * 4.
8737 * res_0: b PLTresolve
8738 * res_1: b PLTresolve
8739 * .
8740 * # Some number of entries towards the end can be nops
8741 * res_n_m3: nop
8742 * res_n_m2: nop
8743 * res_n_m1:
8744 *
8745 * PLTresolve:
8746 * addis 11,11,(1f-res_0)@ha
8747 * mflr 0
8748 * bcl 20,31,1f
8749 * 1: addi 11,11,(1b-res_0)@l
8750 * mflr 12
8751 * mtlr 0
8752 * sub 11,11,12 # r11 = index * 4
8753 * addis 12,12,(got+4-1b)@ha
8754 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
8755 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
8756 * mtctr 0
8757 * add 0,11,11
8758 * add 11,0,11 # r11 = index * 12 = reloc offset.
8759 * bctr
8760 */
8761 static const unsigned int pic_plt_resolve[] =
8762 {
8763 ADDIS_11_11,
8764 MFLR_0,
8765 BCL_20_31,
8766 ADDI_11_11,
8767 MFLR_12,
8768 MTLR_0,
8769 SUB_11_11_12,
8770 ADDIS_12_12,
8771 LWZ_0_12,
8772 LWZ_12_12,
8773 MTCTR_0,
8774 ADD_0_11_11,
8775 ADD_11_0_11,
8776 BCTR,
8777 NOP,
8778 NOP
8779 };
8780
176a0d42
AM		 8781 /*
8782 * Non-PIC glink code is a little simpler.
8783 *
8784 * # ith PLT code stub.
8785 * lis 11,(plt+(i-1)*4)@ha
8786 * lwz 11,(plt+(i-1)*4)@l(11)
8787 * mtctr 11
8788 * bctr
8789 *
8790 * The branch table is the same, then comes
8791 *
8792 * PLTresolve:
8793 * lis 12,(got+4)@ha
8794 * addis 11,11,(-res_0)@ha
8795 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
8796 * addi 11,11,(-res_0)@l # r11 = index * 4
8797 * mtctr 0
8798 * add 0,11,11
8799 * lwz 12,(got+8)@l(12) # got[2] contains the map address
8800 * add 11,0,11 # r11 = index * 12 = reloc offset.
8801 * bctr
8802 */
d7128ce4
AM		 8803 static const unsigned int plt_resolve[] =
8804 {
a6aa5195
AM		 8805 LIS_12,
8806 ADDIS_11_11,
8807 LWZ_0_12,
8808 ADDI_11_11,
d7128ce4 8809 MTCTR_0,
7e8aeb9a 8810 ADD_0_11_11,
a6aa5195 8811 LWZ_12_12,
7e8aeb9a 8812 ADD_11_0_11,
d7128ce4
AM		 8813 BCTR,
8814 NOP,
8815 NOP,
a6aa5195
AM		 8816 NOP,
8817 NOP,
8818 NOP,
8819 NOP,
d7128ce4
AM		 8820 NOP
8821 };
8822
a6aa5195
AM		 8823 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
8824 abort ();
8825 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM		 8826 abort ();
8827
a6aa5195 8828 /* Build the branch table, one for each plt entry (less one),
86b9da88 8829 and perhaps some padding. */
a6aa5195
AM		 8830 p = htab->glink->contents;
8831 p += htab->glink_pltresolve;
86b9da88
AM		 8832 endp = htab->glink->contents;
8833 endp += htab->glink->size - GLINK_PLTRESOLVE;
8834 while (p < endp - 8 * 4)
8835 {
8836 bfd_put_32 (output_bfd, B + endp - p, p);
8837 p += 4;
8838 }
8839 while (p < endp)
8840 {
8841 bfd_put_32 (output_bfd, NOP, p);
8842 p += 4;
8843 }
8844
7e8aeb9a 8845 res0 = (htab->glink_pltresolve
86b9da88
AM		 8846 + htab->glink->output_section->vma
8847 + htab->glink->output_offset);
8848
8849 /* Last comes the PLTresolve stub. */
a877a2b6 8850 if (info->shared)
7e8aeb9a 8851 {
a6aa5195 8852 bfd_vma bcl;
d7128ce4 8853
a6aa5195 8854 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 8855 {
a6aa5195 8856 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM		 8857 p += 4;
8858 }
a6aa5195
AM		 8859 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
8860
8861 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
8862 + htab->glink->output_section->vma
8863 + htab->glink->output_offset);
8864
8865 bfd_put_32 (output_bfd,
8866 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
8867 bfd_put_32 (output_bfd,
8868 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
8869 bfd_put_32 (output_bfd,
8870 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
8871 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
8872 {
8873 bfd_put_32 (output_bfd,
8874 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
8875 bfd_put_32 (output_bfd,
8876 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
8877 }
8878 else
8879 {
8880 bfd_put_32 (output_bfd,
8881 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
8882 bfd_put_32 (output_bfd,
8883 LWZ_12_12 + 4, p + 9*4);
8884 }
7e8aeb9a
AM		 8885 }
8886 else
d7128ce4 8887 {
a6aa5195 8888 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM		 8889 {
8890 bfd_put_32 (output_bfd, plt_resolve[i], p);
8891 p += 4;
8892 }
a6aa5195
AM		 8893 p -= 4 * ARRAY_SIZE (plt_resolve);
8894
8895 bfd_put_32 (output_bfd,
8896 LIS_12 + PPC_HA (got + 4), p + 0*4);
8897 bfd_put_32 (output_bfd,
8898 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
8899 bfd_put_32 (output_bfd,
8900 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
8901 if (PPC_HA (got + 4) == PPC_HA (got + 8))
8902 {
8903 bfd_put_32 (output_bfd,
8904 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
8905 bfd_put_32 (output_bfd,
8906 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
8907 }
8908 else
8909 {
8910 bfd_put_32 (output_bfd,
8911 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
8912 bfd_put_32 (output_bfd,
8913 LWZ_12_12 + 4, p + 6*4);
8914 }
d7128ce4 8915 }
d7128ce4
AM		 8916 }
8917
e87d4038 8918 return ret;
25dbc73a 8919}
e1a9cb8e 8920\f
252b5132
RH		 8921#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
8922#define TARGET_LITTLE_NAME "elf32-powerpcle"
8923#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
8924#define TARGET_BIG_NAME "elf32-powerpc"
8925#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 8926#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 8927#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC		 8928#ifdef __QNXTARGET__
8929#define ELF_MAXPAGESIZE 0x1000
8930#else
252b5132 8931#define ELF_MAXPAGESIZE 0x10000
d0facd1b 8932#endif
b1342370 8933#define ELF_MINPAGESIZE 0x1000
24718e3b 8934#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH		 8935#define elf_info_to_howto ppc_elf_info_to_howto
8936
8937#ifdef EM_CYGNUS_POWERPC
8938#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8939#endif
8940
8941#ifdef EM_PPC_OLD
8942#define ELF_MACHINE_ALT2 EM_PPC_OLD
8943#endif
8944
8945#define elf_backend_plt_not_loaded 1
252b5132 8946#define elf_backend_can_gc_sections 1
51b64d56 8947#define elf_backend_can_refcount 1
b491616a 8948#define elf_backend_rela_normal 1
252b5132 8949
43c40ab2 8950#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 8951#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 8952#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 8953#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
157090f7 8954#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 8955#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 8956#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 8957#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 8958
feee612b 8959#define elf_backend_object_p ppc_elf_object_p
252b5132
RH		 8960#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
8961#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
8962#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
8963#define elf_backend_relocate_section ppc_elf_relocate_section
8964#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
8965#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 8966#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH		 8967#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
8968#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
8969#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 8970#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH		 8971#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
8972#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
8973#define elf_backend_fake_sections ppc_elf_fake_sections
8974#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
c5fccbec
DJ		 8975#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
8976#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 8977#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 8978#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM		 8979#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
8980#define elf_backend_final_write_processing ppc_elf_final_write_processing
8981#define elf_backend_write_section ppc_elf_write_section
551b43fd 8982#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 8983#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 8984#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 8985#define elf_backend_init_index_section _bfd_elf_init_1_index_section
e054468f 8986#define elf_backend_post_process_headers _bfd_elf_set_osabi
252b5132
RH		 8987
8988#include "elf32-target.h"
9d8504b1
PB		 8989
8990/* VxWorks Target */
8991
8992#undef TARGET_LITTLE_SYM
8993#undef TARGET_LITTLE_NAME
8994
8995#undef TARGET_BIG_SYM
8996#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
8997#undef TARGET_BIG_NAME
8998#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
8999
d5e3d971
PB		 9000/* VxWorks uses the elf default section flags for .plt. */
9001static const struct bfd_elf_special_section *
9002ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 9003{
d5e3d971
PB		 9004 if (sec->name == NULL)
9005 return NULL;
9006
9007 if (strcmp (sec->name, ".plt") == 0)
9008 return _bfd_elf_get_sec_type_attr (abfd, sec);
9009
9010 return ppc_elf_get_sec_type_attr (abfd, sec);
9011}
9d8504b1
PB		 9012
9013/* Like ppc_elf_link_hash_table_create, but overrides
9014 appropriately for VxWorks. */
9015static struct bfd_link_hash_table *
9016ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9017{
9018 struct bfd_link_hash_table *ret;
9019
9020 ret = ppc_elf_link_hash_table_create (abfd);
9021 if (ret)
9022 {
9023 struct ppc_elf_link_hash_table *htab
9024 = (struct ppc_elf_link_hash_table *)ret;
9025 htab->is_vxworks = 1;
4a3dc543 9026 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB		 9027 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9028 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9029 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9030 }
9031 return ret;
9032}
9033
9034/* Tweak magic VxWorks symbols as they are loaded. */
9035static bfd_boolean
9036ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9037 struct bfd_link_info *info,
9038 Elf_Internal_Sym *sym,
9039 const char **namep ATTRIBUTE_UNUSED,
9040 flagword *flagsp ATTRIBUTE_UNUSED,
9041 asection **secp,
9042 bfd_vma *valp)
9043{
9044 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
9045 valp))
9046 return FALSE;
9047
9048 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
9049}
9050
9d8504b1
PB		 9051static void
9052ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
9053{
9054 ppc_elf_final_write_processing(abfd, linker);
9055 elf_vxworks_final_write_processing(abfd, linker);
9056}
9057
9058/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
9059 define it. */
9060#undef elf_backend_want_plt_sym
9061#define elf_backend_want_plt_sym 1
9062#undef elf_backend_want_got_plt
9063#define elf_backend_want_got_plt 1
9064#undef elf_backend_got_symbol_offset
9065#define elf_backend_got_symbol_offset 0
9066#undef elf_backend_plt_not_loaded
9067#define elf_backend_plt_not_loaded 0
9068#undef elf_backend_plt_readonly
9069#define elf_backend_plt_readonly 1
9070#undef elf_backend_got_header_size
9071#define elf_backend_got_header_size 12
9072
468392fb
AM		 9073#undef bfd_elf32_get_synthetic_symtab
9074
9d8504b1
PB		 9075#undef bfd_elf32_bfd_link_hash_table_create
9076#define bfd_elf32_bfd_link_hash_table_create \
9077 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB		 9078#undef elf_backend_add_symbol_hook
9079#define elf_backend_add_symbol_hook \
9080 ppc_elf_vxworks_add_symbol_hook
9081#undef elf_backend_link_output_symbol_hook
9082#define elf_backend_link_output_symbol_hook \
9c72ff84 9083 elf_vxworks_link_output_symbol_hook
9d8504b1
PB		 9084#undef elf_backend_final_write_processing
9085#define elf_backend_final_write_processing \
9086 ppc_elf_vxworks_final_write_processing
d5e3d971
PB		 9087#undef elf_backend_get_sec_type_attr
9088#define elf_backend_get_sec_type_attr \
9089 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB		 9090#undef elf_backend_emit_relocs
9091#define elf_backend_emit_relocs \
9092 elf_vxworks_emit_relocs
9093
9094#undef elf32_bed
9095#define elf32_bed ppc_elf_vxworks_bed
e054468f 9096#undef elf_backend_post_process_headers
9d8504b1
PB		 9097
9098#include "elf32-target.h"
GDB Binutils - Deliverables
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