* archive64.c (bfd_elf64_archive_write_armap): Fix calculation of
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
252b5132 1/* PowerPC-specific support for 32-bit ELF
051d5130 2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
75cd47ed 3 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
25f53a85 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"
6177242a 39#include "dwarf2.h"
70a38d42 40#include "elf-linux-psinfo.h"
252b5132 41
b9c361e0
JL
42typedef enum split16_format_type
43{
44 split16a_type = 0,
45 split16d_type
46}
47split16_format_type;
48
f0fe0e16 49/* RELA relocations are used here. */
252b5132 50
252b5132 51static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
55fd94b0 52 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
7619e7c7 53static bfd_reloc_status_type ppc_elf_unhandled_reloc
55fd94b0 54 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
b9c361e0
JL
55static void ppc_elf_vle_split16
56 (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type);
252b5132 57
70bccea4
AM
58/* Branch prediction bit for branch taken relocs. */
59#define BRANCH_PREDICT_BIT 0x200000
60/* Mask to set RA in memory instructions. */
61#define RA_REGISTER_MASK 0x001f0000
62/* Value to shift register by to insert RA. */
63#define RA_REGISTER_SHIFT 16
252b5132
RH
64
65/* The name of the dynamic interpreter. This is put in the .interp
66 section. */
252b5132
RH
67#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
68
d7128ce4 69/* For old-style PLT. */
252b5132
RH
70/* The number of single-slot PLT entries (the rest use two slots). */
71#define PLT_NUM_SINGLE_ENTRIES 8192
72
d7128ce4 73/* For new-style .glink and .plt. */
a6aa5195 74#define GLINK_PLTRESOLVE 16*4
d7128ce4 75#define GLINK_ENTRY_SIZE 4*4
a7f2871e 76#define TLS_GET_ADDR_GLINK_SIZE 12*4
d7128ce4 77
9d8504b1
PB
78/* VxWorks uses its own plt layout, filled in by the static linker. */
79
80/* The standard VxWorks PLT entry. */
81#define VXWORKS_PLT_ENTRY_SIZE 32
82static const bfd_vma ppc_elf_vxworks_plt_entry
83 [VXWORKS_PLT_ENTRY_SIZE / 4] =
84 {
85 0x3d800000, /* lis r12,0 */
86 0x818c0000, /* lwz r12,0(r12) */
87 0x7d8903a6, /* mtctr r12 */
88 0x4e800420, /* bctr */
89 0x39600000, /* li r11,0 */
90 0x48000000, /* b 14 <.PLT0resolve+0x4> */
91 0x60000000, /* nop */
92 0x60000000, /* nop */
93 };
94static const bfd_vma ppc_elf_vxworks_pic_plt_entry
95 [VXWORKS_PLT_ENTRY_SIZE / 4] =
96 {
97 0x3d9e0000, /* addis r12,r30,0 */
98 0x818c0000, /* lwz r12,0(r12) */
99 0x7d8903a6, /* mtctr r12 */
100 0x4e800420, /* bctr */
101 0x39600000, /* li r11,0 */
102 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
103 0x60000000, /* nop */
104 0x60000000, /* nop */
105 };
106
107/* The initial VxWorks PLT entry. */
108#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
109static const bfd_vma ppc_elf_vxworks_plt0_entry
110 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
111 {
112 0x3d800000, /* lis r12,0 */
113 0x398c0000, /* addi r12,r12,0 */
114 0x800c0008, /* lwz r0,8(r12) */
115 0x7c0903a6, /* mtctr r0 */
116 0x818c0004, /* lwz r12,4(r12) */
117 0x4e800420, /* bctr */
118 0x60000000, /* nop */
119 0x60000000, /* nop */
120 };
121static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
122 [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
123 {
124 0x819e0008, /* lwz r12,8(r30) */
125 0x7d8903a6, /* mtctr r12 */
126 0x819e0004, /* lwz r12,4(r30) */
127 0x4e800420, /* bctr */
128 0x60000000, /* nop */
129 0x60000000, /* nop */
130 0x60000000, /* nop */
131 0x60000000, /* nop */
132 };
133
134/* For executables, we have some additional relocations in
135 .rela.plt.unloaded, for the kernel loader. */
136
137/* The number of non-JMP_SLOT relocations per PLT0 slot. */
138#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
139/* The number of relocations in the PLTResolve slot. */
140#define VXWORKS_PLTRESOLVE_RELOCS 2
141/* The number of relocations in the PLTResolve slot when when creating
142 a shared library. */
143#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
144
d7128ce4 145/* Some instructions. */
d7128ce4 146#define ADDIS_11_11 0x3d6b0000
a6aa5195
AM
147#define ADDIS_11_30 0x3d7e0000
148#define ADDIS_12_12 0x3d8c0000
d7128ce4 149#define ADDI_11_11 0x396b0000
d7128ce4 150#define ADD_0_11_11 0x7c0b5a14
a7f2871e 151#define ADD_3_12_2 0x7c6c1214
d7128ce4 152#define ADD_11_0_11 0x7d605a14
a6aa5195
AM
153#define B 0x48000000
154#define BCL_20_31 0x429f0005
d7128ce4 155#define BCTR 0x4e800420
a7f2871e
AM
156#define BEQLR 0x4d820020
157#define CMPWI_11_0 0x2c0b0000
7e8aeb9a
AM
158#define LIS_11 0x3d600000
159#define LIS_12 0x3d800000
a6aa5195
AM
160#define LWZU_0_12 0x840c0000
161#define LWZ_0_12 0x800c0000
a7f2871e 162#define LWZ_11_3 0x81630000
a6aa5195
AM
163#define LWZ_11_11 0x816b0000
164#define LWZ_11_30 0x817e0000
a7f2871e 165#define LWZ_12_3 0x81830000
a6aa5195 166#define LWZ_12_12 0x818c0000
a7f2871e
AM
167#define MR_0_3 0x7c601b78
168#define MR_3_0 0x7c030378
a6aa5195
AM
169#define MFLR_0 0x7c0802a6
170#define MFLR_12 0x7d8802a6
171#define MTCTR_0 0x7c0903a6
172#define MTCTR_11 0x7d6903a6
173#define MTLR_0 0x7c0803a6
174#define NOP 0x60000000
175#define SUB_11_11_12 0x7d6c5850
7619e7c7
AM
176
177/* Offset of tp and dtp pointers from start of TLS block. */
178#define TP_OFFSET 0x7000
179#define DTP_OFFSET 0x8000
e87d4038
AM
180
181/* The value of a defined global symbol. */
182#define SYM_VAL(SYM) \
183 ((SYM)->root.u.def.section->output_section->vma \
184 + (SYM)->root.u.def.section->output_offset \
185 + (SYM)->root.u.def.value)
7fce784e 186\f
e47cd125 187static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
252b5132 188
8da6118f 189static reloc_howto_type ppc_elf_howto_raw[] = {
252b5132
RH
190 /* This reloc does nothing. */
191 HOWTO (R_PPC_NONE, /* type */
192 0, /* rightshift */
193 2, /* size (0 = byte, 1 = short, 2 = long) */
194 32, /* bitsize */
b34976b6 195 FALSE, /* pc_relative */
252b5132
RH
196 0, /* bitpos */
197 complain_overflow_bitfield, /* complain_on_overflow */
198 bfd_elf_generic_reloc, /* special_function */
199 "R_PPC_NONE", /* name */
b34976b6 200 FALSE, /* partial_inplace */
252b5132
RH
201 0, /* src_mask */
202 0, /* dst_mask */
b34976b6 203 FALSE), /* pcrel_offset */
252b5132
RH
204
205 /* A standard 32 bit relocation. */
206 HOWTO (R_PPC_ADDR32, /* type */
207 0, /* rightshift */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
209 32, /* bitsize */
b34976b6 210 FALSE, /* pc_relative */
252b5132
RH
211 0, /* bitpos */
212 complain_overflow_bitfield, /* complain_on_overflow */
213 bfd_elf_generic_reloc, /* special_function */
214 "R_PPC_ADDR32", /* name */
b34976b6 215 FALSE, /* partial_inplace */
252b5132
RH
216 0, /* src_mask */
217 0xffffffff, /* dst_mask */
b34976b6 218 FALSE), /* pcrel_offset */
252b5132
RH
219
220 /* An absolute 26 bit branch; the lower two bits must be zero.
221 FIXME: we don't check that, we just clear them. */
222 HOWTO (R_PPC_ADDR24, /* type */
223 0, /* rightshift */
224 2, /* size (0 = byte, 1 = short, 2 = long) */
225 26, /* bitsize */
b34976b6 226 FALSE, /* pc_relative */
252b5132
RH
227 0, /* bitpos */
228 complain_overflow_bitfield, /* complain_on_overflow */
229 bfd_elf_generic_reloc, /* special_function */
230 "R_PPC_ADDR24", /* name */
b34976b6 231 FALSE, /* partial_inplace */
252b5132
RH
232 0, /* src_mask */
233 0x3fffffc, /* dst_mask */
b34976b6 234 FALSE), /* pcrel_offset */
252b5132
RH
235
236 /* A standard 16 bit relocation. */
237 HOWTO (R_PPC_ADDR16, /* type */
238 0, /* rightshift */
239 1, /* size (0 = byte, 1 = short, 2 = long) */
240 16, /* bitsize */
b34976b6 241 FALSE, /* pc_relative */
252b5132
RH
242 0, /* bitpos */
243 complain_overflow_bitfield, /* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_PPC_ADDR16", /* name */
b34976b6 246 FALSE, /* partial_inplace */
252b5132
RH
247 0, /* src_mask */
248 0xffff, /* dst_mask */
b34976b6 249 FALSE), /* pcrel_offset */
252b5132
RH
250
251 /* A 16 bit relocation without overflow. */
252 HOWTO (R_PPC_ADDR16_LO, /* type */
253 0, /* rightshift */
254 1, /* size (0 = byte, 1 = short, 2 = long) */
255 16, /* bitsize */
b34976b6 256 FALSE, /* pc_relative */
252b5132
RH
257 0, /* bitpos */
258 complain_overflow_dont,/* complain_on_overflow */
259 bfd_elf_generic_reloc, /* special_function */
260 "R_PPC_ADDR16_LO", /* name */
b34976b6 261 FALSE, /* partial_inplace */
252b5132
RH
262 0, /* src_mask */
263 0xffff, /* dst_mask */
b34976b6 264 FALSE), /* pcrel_offset */
252b5132
RH
265
266 /* The high order 16 bits of an address. */
267 HOWTO (R_PPC_ADDR16_HI, /* type */
268 16, /* rightshift */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
270 16, /* bitsize */
b34976b6 271 FALSE, /* pc_relative */
252b5132
RH
272 0, /* bitpos */
273 complain_overflow_dont, /* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_PPC_ADDR16_HI", /* name */
b34976b6 276 FALSE, /* partial_inplace */
252b5132
RH
277 0, /* src_mask */
278 0xffff, /* dst_mask */
b34976b6 279 FALSE), /* pcrel_offset */
252b5132
RH
280
281 /* The high order 16 bits of an address, plus 1 if the contents of
8da6118f 282 the low 16 bits, treated as a signed number, is negative. */
252b5132
RH
283 HOWTO (R_PPC_ADDR16_HA, /* type */
284 16, /* rightshift */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
b34976b6 287 FALSE, /* pc_relative */
252b5132
RH
288 0, /* bitpos */
289 complain_overflow_dont, /* complain_on_overflow */
290 ppc_elf_addr16_ha_reloc, /* special_function */
291 "R_PPC_ADDR16_HA", /* name */
b34976b6 292 FALSE, /* partial_inplace */
252b5132
RH
293 0, /* src_mask */
294 0xffff, /* dst_mask */
b34976b6 295 FALSE), /* pcrel_offset */
252b5132
RH
296
297 /* An absolute 16 bit branch; the lower two bits must be zero.
298 FIXME: we don't check that, we just clear them. */
299 HOWTO (R_PPC_ADDR14, /* type */
300 0, /* rightshift */
301 2, /* size (0 = byte, 1 = short, 2 = long) */
302 16, /* bitsize */
b34976b6 303 FALSE, /* pc_relative */
252b5132
RH
304 0, /* bitpos */
305 complain_overflow_bitfield, /* complain_on_overflow */
306 bfd_elf_generic_reloc, /* special_function */
307 "R_PPC_ADDR14", /* name */
b34976b6 308 FALSE, /* partial_inplace */
252b5132
RH
309 0, /* src_mask */
310 0xfffc, /* dst_mask */
b34976b6 311 FALSE), /* pcrel_offset */
252b5132
RH
312
313 /* An absolute 16 bit branch, for which bit 10 should be set to
314 indicate that the branch is expected to be taken. The lower two
8da6118f 315 bits must be zero. */
252b5132
RH
316 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
317 0, /* rightshift */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
b34976b6 320 FALSE, /* pc_relative */
252b5132
RH
321 0, /* bitpos */
322 complain_overflow_bitfield, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_PPC_ADDR14_BRTAKEN",/* name */
b34976b6 325 FALSE, /* partial_inplace */
252b5132
RH
326 0, /* src_mask */
327 0xfffc, /* dst_mask */
b34976b6 328 FALSE), /* pcrel_offset */
252b5132
RH
329
330 /* An absolute 16 bit branch, for which bit 10 should be set to
331 indicate that the branch is not expected to be taken. The lower
332 two bits must be zero. */
333 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
334 0, /* rightshift */
335 2, /* size (0 = byte, 1 = short, 2 = long) */
336 16, /* bitsize */
b34976b6 337 FALSE, /* pc_relative */
252b5132
RH
338 0, /* bitpos */
339 complain_overflow_bitfield, /* complain_on_overflow */
340 bfd_elf_generic_reloc, /* special_function */
341 "R_PPC_ADDR14_BRNTAKEN",/* name */
b34976b6 342 FALSE, /* partial_inplace */
252b5132
RH
343 0, /* src_mask */
344 0xfffc, /* dst_mask */
b34976b6 345 FALSE), /* pcrel_offset */
252b5132 346
8da6118f 347 /* A relative 26 bit branch; the lower two bits must be zero. */
252b5132
RH
348 HOWTO (R_PPC_REL24, /* type */
349 0, /* rightshift */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
351 26, /* bitsize */
b34976b6 352 TRUE, /* pc_relative */
252b5132
RH
353 0, /* bitpos */
354 complain_overflow_signed, /* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_PPC_REL24", /* name */
b34976b6 357 FALSE, /* partial_inplace */
252b5132
RH
358 0, /* src_mask */
359 0x3fffffc, /* dst_mask */
b34976b6 360 TRUE), /* pcrel_offset */
252b5132 361
8da6118f 362 /* A relative 16 bit branch; the lower two bits must be zero. */
252b5132
RH
363 HOWTO (R_PPC_REL14, /* type */
364 0, /* rightshift */
365 2, /* size (0 = byte, 1 = short, 2 = long) */
366 16, /* bitsize */
b34976b6 367 TRUE, /* pc_relative */
252b5132
RH
368 0, /* bitpos */
369 complain_overflow_signed, /* complain_on_overflow */
370 bfd_elf_generic_reloc, /* special_function */
371 "R_PPC_REL14", /* name */
b34976b6 372 FALSE, /* partial_inplace */
252b5132
RH
373 0, /* src_mask */
374 0xfffc, /* dst_mask */
b34976b6 375 TRUE), /* pcrel_offset */
252b5132 376
8da6118f 377 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
378 the branch is expected to be taken. The lower two bits must be
379 zero. */
380 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
381 0, /* rightshift */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
383 16, /* bitsize */
b34976b6 384 TRUE, /* pc_relative */
252b5132
RH
385 0, /* bitpos */
386 complain_overflow_signed, /* complain_on_overflow */
387 bfd_elf_generic_reloc, /* special_function */
388 "R_PPC_REL14_BRTAKEN", /* name */
b34976b6 389 FALSE, /* partial_inplace */
252b5132
RH
390 0, /* src_mask */
391 0xfffc, /* dst_mask */
b34976b6 392 TRUE), /* pcrel_offset */
252b5132 393
8da6118f 394 /* A relative 16 bit branch. Bit 10 should be set to indicate that
252b5132
RH
395 the branch is not expected to be taken. The lower two bits must
396 be zero. */
397 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
398 0, /* rightshift */
399 2, /* size (0 = byte, 1 = short, 2 = long) */
400 16, /* bitsize */
b34976b6 401 TRUE, /* pc_relative */
252b5132
RH
402 0, /* bitpos */
403 complain_overflow_signed, /* complain_on_overflow */
404 bfd_elf_generic_reloc, /* special_function */
405 "R_PPC_REL14_BRNTAKEN",/* name */
b34976b6 406 FALSE, /* partial_inplace */
252b5132
RH
407 0, /* src_mask */
408 0xfffc, /* dst_mask */
b34976b6 409 TRUE), /* pcrel_offset */
252b5132
RH
410
411 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
412 symbol. */
413 HOWTO (R_PPC_GOT16, /* type */
414 0, /* rightshift */
415 1, /* size (0 = byte, 1 = short, 2 = long) */
416 16, /* bitsize */
b34976b6 417 FALSE, /* pc_relative */
252b5132
RH
418 0, /* bitpos */
419 complain_overflow_signed, /* complain_on_overflow */
420 bfd_elf_generic_reloc, /* special_function */
421 "R_PPC_GOT16", /* name */
b34976b6 422 FALSE, /* partial_inplace */
252b5132
RH
423 0, /* src_mask */
424 0xffff, /* dst_mask */
b34976b6 425 FALSE), /* pcrel_offset */
252b5132
RH
426
427 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
428 the symbol. */
429 HOWTO (R_PPC_GOT16_LO, /* type */
430 0, /* rightshift */
431 1, /* size (0 = byte, 1 = short, 2 = long) */
432 16, /* bitsize */
b34976b6 433 FALSE, /* pc_relative */
252b5132
RH
434 0, /* bitpos */
435 complain_overflow_dont, /* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_PPC_GOT16_LO", /* name */
b34976b6 438 FALSE, /* partial_inplace */
252b5132
RH
439 0, /* src_mask */
440 0xffff, /* dst_mask */
b34976b6 441 FALSE), /* pcrel_offset */
252b5132
RH
442
443 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
444 the symbol. */
445 HOWTO (R_PPC_GOT16_HI, /* type */
446 16, /* rightshift */
447 1, /* size (0 = byte, 1 = short, 2 = long) */
448 16, /* bitsize */
b34976b6 449 FALSE, /* pc_relative */
252b5132
RH
450 0, /* bitpos */
451 complain_overflow_bitfield, /* complain_on_overflow */
452 bfd_elf_generic_reloc, /* special_function */
453 "R_PPC_GOT16_HI", /* name */
b34976b6 454 FALSE, /* partial_inplace */
252b5132
RH
455 0, /* src_mask */
456 0xffff, /* dst_mask */
b34976b6 457 FALSE), /* pcrel_offset */
252b5132
RH
458
459 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
460 the symbol. */
461 HOWTO (R_PPC_GOT16_HA, /* type */
462 16, /* rightshift */
463 1, /* size (0 = byte, 1 = short, 2 = long) */
464 16, /* bitsize */
b34976b6 465 FALSE, /* pc_relative */
252b5132
RH
466 0, /* bitpos */
467 complain_overflow_bitfield, /* complain_on_overflow */
468 ppc_elf_addr16_ha_reloc, /* special_function */
469 "R_PPC_GOT16_HA", /* name */
b34976b6 470 FALSE, /* partial_inplace */
252b5132
RH
471 0, /* src_mask */
472 0xffff, /* dst_mask */
b34976b6 473 FALSE), /* pcrel_offset */
252b5132
RH
474
475 /* Like R_PPC_REL24, but referring to the procedure linkage table
476 entry for the symbol. */
477 HOWTO (R_PPC_PLTREL24, /* type */
478 0, /* rightshift */
479 2, /* size (0 = byte, 1 = short, 2 = long) */
480 26, /* bitsize */
b34976b6 481 TRUE, /* pc_relative */
252b5132
RH
482 0, /* bitpos */
483 complain_overflow_signed, /* complain_on_overflow */
484 bfd_elf_generic_reloc, /* special_function */
485 "R_PPC_PLTREL24", /* name */
b34976b6 486 FALSE, /* partial_inplace */
252b5132
RH
487 0, /* src_mask */
488 0x3fffffc, /* dst_mask */
b34976b6 489 TRUE), /* pcrel_offset */
252b5132
RH
490
491 /* This is used only by the dynamic linker. The symbol should exist
492 both in the object being run and in some shared library. The
493 dynamic linker copies the data addressed by the symbol from the
494 shared library into the object, because the object being
495 run has to have the data at some particular address. */
496 HOWTO (R_PPC_COPY, /* type */
497 0, /* rightshift */
498 2, /* size (0 = byte, 1 = short, 2 = long) */
499 32, /* bitsize */
b34976b6 500 FALSE, /* pc_relative */
252b5132
RH
501 0, /* bitpos */
502 complain_overflow_bitfield, /* complain_on_overflow */
503 bfd_elf_generic_reloc, /* special_function */
504 "R_PPC_COPY", /* name */
b34976b6 505 FALSE, /* partial_inplace */
252b5132
RH
506 0, /* src_mask */
507 0, /* dst_mask */
b34976b6 508 FALSE), /* pcrel_offset */
252b5132
RH
509
510 /* Like R_PPC_ADDR32, but used when setting global offset table
511 entries. */
512 HOWTO (R_PPC_GLOB_DAT, /* type */
513 0, /* rightshift */
514 2, /* size (0 = byte, 1 = short, 2 = long) */
515 32, /* bitsize */
b34976b6 516 FALSE, /* pc_relative */
252b5132
RH
517 0, /* bitpos */
518 complain_overflow_bitfield, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
520 "R_PPC_GLOB_DAT", /* name */
b34976b6 521 FALSE, /* partial_inplace */
252b5132
RH
522 0, /* src_mask */
523 0xffffffff, /* dst_mask */
b34976b6 524 FALSE), /* pcrel_offset */
252b5132
RH
525
526 /* Marks a procedure linkage table entry for a symbol. */
527 HOWTO (R_PPC_JMP_SLOT, /* type */
528 0, /* rightshift */
529 2, /* size (0 = byte, 1 = short, 2 = long) */
530 32, /* bitsize */
b34976b6 531 FALSE, /* pc_relative */
252b5132
RH
532 0, /* bitpos */
533 complain_overflow_bitfield, /* complain_on_overflow */
534 bfd_elf_generic_reloc, /* special_function */
535 "R_PPC_JMP_SLOT", /* name */
b34976b6 536 FALSE, /* partial_inplace */
252b5132
RH
537 0, /* src_mask */
538 0, /* dst_mask */
b34976b6 539 FALSE), /* pcrel_offset */
252b5132
RH
540
541 /* Used only by the dynamic linker. When the object is run, this
542 longword is set to the load address of the object, plus the
543 addend. */
544 HOWTO (R_PPC_RELATIVE, /* type */
545 0, /* rightshift */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
547 32, /* bitsize */
b34976b6 548 FALSE, /* pc_relative */
252b5132
RH
549 0, /* bitpos */
550 complain_overflow_bitfield, /* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_PPC_RELATIVE", /* name */
b34976b6 553 FALSE, /* partial_inplace */
252b5132
RH
554 0, /* src_mask */
555 0xffffffff, /* dst_mask */
b34976b6 556 FALSE), /* pcrel_offset */
252b5132
RH
557
558 /* Like R_PPC_REL24, but uses the value of the symbol within the
559 object rather than the final value. Normally used for
560 _GLOBAL_OFFSET_TABLE_. */
561 HOWTO (R_PPC_LOCAL24PC, /* type */
562 0, /* rightshift */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
564 26, /* bitsize */
b34976b6 565 TRUE, /* pc_relative */
252b5132
RH
566 0, /* bitpos */
567 complain_overflow_signed, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_PPC_LOCAL24PC", /* name */
b34976b6 570 FALSE, /* partial_inplace */
252b5132
RH
571 0, /* src_mask */
572 0x3fffffc, /* dst_mask */
b34976b6 573 TRUE), /* pcrel_offset */
252b5132
RH
574
575 /* Like R_PPC_ADDR32, but may be unaligned. */
576 HOWTO (R_PPC_UADDR32, /* type */
577 0, /* rightshift */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
579 32, /* bitsize */
b34976b6 580 FALSE, /* pc_relative */
252b5132
RH
581 0, /* bitpos */
582 complain_overflow_bitfield, /* complain_on_overflow */
583 bfd_elf_generic_reloc, /* special_function */
584 "R_PPC_UADDR32", /* name */
b34976b6 585 FALSE, /* partial_inplace */
252b5132
RH
586 0, /* src_mask */
587 0xffffffff, /* dst_mask */
b34976b6 588 FALSE), /* pcrel_offset */
252b5132
RH
589
590 /* Like R_PPC_ADDR16, but may be unaligned. */
591 HOWTO (R_PPC_UADDR16, /* type */
592 0, /* rightshift */
593 1, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
b34976b6 595 FALSE, /* pc_relative */
252b5132
RH
596 0, /* bitpos */
597 complain_overflow_bitfield, /* complain_on_overflow */
598 bfd_elf_generic_reloc, /* special_function */
599 "R_PPC_UADDR16", /* name */
b34976b6 600 FALSE, /* partial_inplace */
252b5132
RH
601 0, /* src_mask */
602 0xffff, /* dst_mask */
b34976b6 603 FALSE), /* pcrel_offset */
252b5132
RH
604
605 /* 32-bit PC relative */
606 HOWTO (R_PPC_REL32, /* type */
607 0, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 32, /* bitsize */
b34976b6 610 TRUE, /* pc_relative */
252b5132
RH
611 0, /* bitpos */
612 complain_overflow_bitfield, /* complain_on_overflow */
613 bfd_elf_generic_reloc, /* special_function */
614 "R_PPC_REL32", /* name */
b34976b6 615 FALSE, /* partial_inplace */
252b5132
RH
616 0, /* src_mask */
617 0xffffffff, /* dst_mask */
b34976b6 618 TRUE), /* pcrel_offset */
252b5132
RH
619
620 /* 32-bit relocation to the symbol's procedure linkage table.
c3668558 621 FIXME: not supported. */
252b5132
RH
622 HOWTO (R_PPC_PLT32, /* type */
623 0, /* rightshift */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
625 32, /* bitsize */
b34976b6 626 FALSE, /* pc_relative */
252b5132
RH
627 0, /* bitpos */
628 complain_overflow_bitfield, /* complain_on_overflow */
629 bfd_elf_generic_reloc, /* special_function */
630 "R_PPC_PLT32", /* name */
b34976b6 631 FALSE, /* partial_inplace */
252b5132
RH
632 0, /* src_mask */
633 0, /* dst_mask */
b34976b6 634 FALSE), /* pcrel_offset */
252b5132
RH
635
636 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
c3668558 637 FIXME: not supported. */
252b5132
RH
638 HOWTO (R_PPC_PLTREL32, /* type */
639 0, /* rightshift */
640 2, /* size (0 = byte, 1 = short, 2 = long) */
641 32, /* bitsize */
b34976b6 642 TRUE, /* pc_relative */
252b5132
RH
643 0, /* bitpos */
644 complain_overflow_bitfield, /* complain_on_overflow */
645 bfd_elf_generic_reloc, /* special_function */
646 "R_PPC_PLTREL32", /* name */
b34976b6 647 FALSE, /* partial_inplace */
252b5132
RH
648 0, /* src_mask */
649 0, /* dst_mask */
b34976b6 650 TRUE), /* pcrel_offset */
252b5132
RH
651
652 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
653 the symbol. */
654 HOWTO (R_PPC_PLT16_LO, /* type */
655 0, /* rightshift */
656 1, /* size (0 = byte, 1 = short, 2 = long) */
657 16, /* bitsize */
b34976b6 658 FALSE, /* pc_relative */
252b5132
RH
659 0, /* bitpos */
660 complain_overflow_dont, /* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
662 "R_PPC_PLT16_LO", /* name */
b34976b6 663 FALSE, /* partial_inplace */
252b5132
RH
664 0, /* src_mask */
665 0xffff, /* dst_mask */
b34976b6 666 FALSE), /* pcrel_offset */
252b5132
RH
667
668 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
669 the symbol. */
670 HOWTO (R_PPC_PLT16_HI, /* type */
671 16, /* rightshift */
672 1, /* size (0 = byte, 1 = short, 2 = long) */
673 16, /* bitsize */
b34976b6 674 FALSE, /* pc_relative */
252b5132
RH
675 0, /* bitpos */
676 complain_overflow_bitfield, /* complain_on_overflow */
677 bfd_elf_generic_reloc, /* special_function */
678 "R_PPC_PLT16_HI", /* name */
b34976b6 679 FALSE, /* partial_inplace */
252b5132
RH
680 0, /* src_mask */
681 0xffff, /* dst_mask */
b34976b6 682 FALSE), /* pcrel_offset */
252b5132
RH
683
684 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
685 the symbol. */
686 HOWTO (R_PPC_PLT16_HA, /* type */
687 16, /* rightshift */
688 1, /* size (0 = byte, 1 = short, 2 = long) */
689 16, /* bitsize */
b34976b6 690 FALSE, /* pc_relative */
252b5132
RH
691 0, /* bitpos */
692 complain_overflow_bitfield, /* complain_on_overflow */
693 ppc_elf_addr16_ha_reloc, /* special_function */
694 "R_PPC_PLT16_HA", /* name */
b34976b6 695 FALSE, /* partial_inplace */
252b5132
RH
696 0, /* src_mask */
697 0xffff, /* dst_mask */
b34976b6 698 FALSE), /* pcrel_offset */
252b5132
RH
699
700 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
701 small data items. */
702 HOWTO (R_PPC_SDAREL16, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
705 16, /* bitsize */
b34976b6 706 FALSE, /* pc_relative */
252b5132
RH
707 0, /* bitpos */
708 complain_overflow_signed, /* complain_on_overflow */
709 bfd_elf_generic_reloc, /* special_function */
710 "R_PPC_SDAREL16", /* name */
b34976b6 711 FALSE, /* partial_inplace */
252b5132
RH
712 0, /* src_mask */
713 0xffff, /* dst_mask */
b34976b6 714 FALSE), /* pcrel_offset */
252b5132 715
c061c2d8 716 /* 16-bit section relative relocation. */
252b5132
RH
717 HOWTO (R_PPC_SECTOFF, /* type */
718 0, /* rightshift */
c061c2d8
AM
719 1, /* size (0 = byte, 1 = short, 2 = long) */
720 16, /* bitsize */
b34976b6 721 FALSE, /* pc_relative */
252b5132
RH
722 0, /* bitpos */
723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc, /* special_function */
725 "R_PPC_SECTOFF", /* name */
b34976b6 726 FALSE, /* partial_inplace */
252b5132 727 0, /* src_mask */
c061c2d8 728 0xffff, /* dst_mask */
b34976b6 729 FALSE), /* pcrel_offset */
252b5132 730
c3668558 731 /* 16-bit lower half section relative relocation. */
252b5132
RH
732 HOWTO (R_PPC_SECTOFF_LO, /* type */
733 0, /* rightshift */
734 1, /* size (0 = byte, 1 = short, 2 = long) */
735 16, /* bitsize */
b34976b6 736 FALSE, /* pc_relative */
252b5132
RH
737 0, /* bitpos */
738 complain_overflow_dont, /* complain_on_overflow */
739 bfd_elf_generic_reloc, /* special_function */
740 "R_PPC_SECTOFF_LO", /* name */
b34976b6 741 FALSE, /* partial_inplace */
252b5132
RH
742 0, /* src_mask */
743 0xffff, /* dst_mask */
b34976b6 744 FALSE), /* pcrel_offset */
252b5132 745
c3668558 746 /* 16-bit upper half section relative relocation. */
252b5132
RH
747 HOWTO (R_PPC_SECTOFF_HI, /* type */
748 16, /* rightshift */
749 1, /* size (0 = byte, 1 = short, 2 = long) */
750 16, /* bitsize */
b34976b6 751 FALSE, /* pc_relative */
252b5132
RH
752 0, /* bitpos */
753 complain_overflow_bitfield, /* complain_on_overflow */
754 bfd_elf_generic_reloc, /* special_function */
755 "R_PPC_SECTOFF_HI", /* name */
b34976b6 756 FALSE, /* partial_inplace */
252b5132
RH
757 0, /* src_mask */
758 0xffff, /* dst_mask */
b34976b6 759 FALSE), /* pcrel_offset */
252b5132 760
c3668558 761 /* 16-bit upper half adjusted section relative relocation. */
252b5132
RH
762 HOWTO (R_PPC_SECTOFF_HA, /* type */
763 16, /* rightshift */
764 1, /* size (0 = byte, 1 = short, 2 = long) */
765 16, /* bitsize */
b34976b6 766 FALSE, /* pc_relative */
252b5132
RH
767 0, /* bitpos */
768 complain_overflow_bitfield, /* complain_on_overflow */
769 ppc_elf_addr16_ha_reloc, /* special_function */
770 "R_PPC_SECTOFF_HA", /* name */
b34976b6 771 FALSE, /* partial_inplace */
252b5132
RH
772 0, /* src_mask */
773 0xffff, /* dst_mask */
b34976b6 774 FALSE), /* pcrel_offset */
252b5132 775
727fc41e 776 /* Marker relocs for TLS. */
7619e7c7 777 HOWTO (R_PPC_TLS,
252b5132
RH
778 0, /* rightshift */
779 2, /* size (0 = byte, 1 = short, 2 = long) */
780 32, /* bitsize */
b34976b6 781 FALSE, /* pc_relative */
252b5132 782 0, /* bitpos */
7619e7c7 783 complain_overflow_dont, /* complain_on_overflow */
252b5132 784 bfd_elf_generic_reloc, /* special_function */
7619e7c7
AM
785 "R_PPC_TLS", /* name */
786 FALSE, /* partial_inplace */
787 0, /* src_mask */
788 0, /* dst_mask */
789 FALSE), /* pcrel_offset */
790
727fc41e
AM
791 HOWTO (R_PPC_TLSGD,
792 0, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 32, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_PPC_TLSGD", /* name */
800 FALSE, /* partial_inplace */
801 0, /* src_mask */
802 0, /* dst_mask */
803 FALSE), /* pcrel_offset */
804
805 HOWTO (R_PPC_TLSLD,
806 0, /* rightshift */
807 2, /* size (0 = byte, 1 = short, 2 = long) */
808 32, /* bitsize */
809 FALSE, /* pc_relative */
810 0, /* bitpos */
811 complain_overflow_dont, /* complain_on_overflow */
812 bfd_elf_generic_reloc, /* special_function */
813 "R_PPC_TLSLD", /* name */
814 FALSE, /* partial_inplace */
815 0, /* src_mask */
816 0, /* dst_mask */
817 FALSE), /* pcrel_offset */
818
7619e7c7
AM
819 /* Computes the load module index of the load module that contains the
820 definition of its TLS sym. */
821 HOWTO (R_PPC_DTPMOD32,
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 32, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 ppc_elf_unhandled_reloc, /* special_function */
829 "R_PPC_DTPMOD32", /* name */
b34976b6 830 FALSE, /* partial_inplace */
252b5132
RH
831 0, /* src_mask */
832 0xffffffff, /* dst_mask */
b34976b6 833 FALSE), /* pcrel_offset */
252b5132 834
7619e7c7
AM
835 /* Computes a dtv-relative displacement, the difference between the value
836 of sym+add and the base address of the thread-local storage block that
837 contains the definition of sym, minus 0x8000. */
838 HOWTO (R_PPC_DTPREL32,
839 0, /* rightshift */
840 2, /* size (0 = byte, 1 = short, 2 = long) */
841 32, /* bitsize */
842 FALSE, /* pc_relative */
843 0, /* bitpos */
844 complain_overflow_dont, /* complain_on_overflow */
845 ppc_elf_unhandled_reloc, /* special_function */
846 "R_PPC_DTPREL32", /* name */
847 FALSE, /* partial_inplace */
848 0, /* src_mask */
849 0xffffffff, /* dst_mask */
850 FALSE), /* pcrel_offset */
851
852 /* A 16 bit dtprel reloc. */
853 HOWTO (R_PPC_DTPREL16,
252b5132
RH
854 0, /* rightshift */
855 1, /* size (0 = byte, 1 = short, 2 = long) */
856 16, /* bitsize */
b34976b6 857 FALSE, /* pc_relative */
252b5132 858 0, /* bitpos */
7619e7c7
AM
859 complain_overflow_signed, /* complain_on_overflow */
860 ppc_elf_unhandled_reloc, /* special_function */
861 "R_PPC_DTPREL16", /* name */
b34976b6 862 FALSE, /* partial_inplace */
252b5132
RH
863 0, /* src_mask */
864 0xffff, /* dst_mask */
b34976b6 865 FALSE), /* pcrel_offset */
252b5132 866
7619e7c7
AM
867 /* Like DTPREL16, but no overflow. */
868 HOWTO (R_PPC_DTPREL16_LO,
252b5132
RH
869 0, /* rightshift */
870 1, /* size (0 = byte, 1 = short, 2 = long) */
871 16, /* bitsize */
b34976b6 872 FALSE, /* pc_relative */
252b5132 873 0, /* bitpos */
7619e7c7
AM
874 complain_overflow_dont, /* complain_on_overflow */
875 ppc_elf_unhandled_reloc, /* special_function */
876 "R_PPC_DTPREL16_LO", /* name */
b34976b6 877 FALSE, /* partial_inplace */
252b5132
RH
878 0, /* src_mask */
879 0xffff, /* dst_mask */
b34976b6 880 FALSE), /* pcrel_offset */
252b5132 881
7619e7c7
AM
882 /* Like DTPREL16_LO, but next higher group of 16 bits. */
883 HOWTO (R_PPC_DTPREL16_HI,
252b5132
RH
884 16, /* rightshift */
885 1, /* size (0 = byte, 1 = short, 2 = long) */
886 16, /* bitsize */
b34976b6 887 FALSE, /* pc_relative */
252b5132
RH
888 0, /* bitpos */
889 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
890 ppc_elf_unhandled_reloc, /* special_function */
891 "R_PPC_DTPREL16_HI", /* name */
b34976b6 892 FALSE, /* partial_inplace */
252b5132
RH
893 0, /* src_mask */
894 0xffff, /* dst_mask */
b34976b6 895 FALSE), /* pcrel_offset */
252b5132 896
7619e7c7
AM
897 /* Like DTPREL16_HI, but adjust for low 16 bits. */
898 HOWTO (R_PPC_DTPREL16_HA,
252b5132
RH
899 16, /* rightshift */
900 1, /* size (0 = byte, 1 = short, 2 = long) */
901 16, /* bitsize */
b34976b6 902 FALSE, /* pc_relative */
252b5132
RH
903 0, /* bitpos */
904 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
905 ppc_elf_unhandled_reloc, /* special_function */
906 "R_PPC_DTPREL16_HA", /* name */
b34976b6 907 FALSE, /* partial_inplace */
252b5132
RH
908 0, /* src_mask */
909 0xffff, /* dst_mask */
b34976b6 910 FALSE), /* pcrel_offset */
252b5132 911
7619e7c7
AM
912 /* Computes a tp-relative displacement, the difference between the value of
913 sym+add and the value of the thread pointer (r13). */
914 HOWTO (R_PPC_TPREL32,
915 0, /* rightshift */
916 2, /* size (0 = byte, 1 = short, 2 = long) */
917 32, /* bitsize */
918 FALSE, /* pc_relative */
919 0, /* bitpos */
920 complain_overflow_dont, /* complain_on_overflow */
921 ppc_elf_unhandled_reloc, /* special_function */
922 "R_PPC_TPREL32", /* name */
923 FALSE, /* partial_inplace */
924 0, /* src_mask */
925 0xffffffff, /* dst_mask */
926 FALSE), /* pcrel_offset */
927
928 /* A 16 bit tprel reloc. */
929 HOWTO (R_PPC_TPREL16,
252b5132
RH
930 0, /* rightshift */
931 1, /* size (0 = byte, 1 = short, 2 = long) */
932 16, /* bitsize */
b34976b6 933 FALSE, /* pc_relative */
252b5132 934 0, /* bitpos */
7619e7c7
AM
935 complain_overflow_signed, /* complain_on_overflow */
936 ppc_elf_unhandled_reloc, /* special_function */
937 "R_PPC_TPREL16", /* name */
b34976b6 938 FALSE, /* partial_inplace */
252b5132
RH
939 0, /* src_mask */
940 0xffff, /* dst_mask */
b34976b6 941 FALSE), /* pcrel_offset */
252b5132 942
7619e7c7
AM
943 /* Like TPREL16, but no overflow. */
944 HOWTO (R_PPC_TPREL16_LO,
252b5132
RH
945 0, /* rightshift */
946 1, /* size (0 = byte, 1 = short, 2 = long) */
947 16, /* bitsize */
b34976b6 948 FALSE, /* pc_relative */
252b5132 949 0, /* bitpos */
7619e7c7
AM
950 complain_overflow_dont, /* complain_on_overflow */
951 ppc_elf_unhandled_reloc, /* special_function */
952 "R_PPC_TPREL16_LO", /* name */
b34976b6 953 FALSE, /* partial_inplace */
252b5132
RH
954 0, /* src_mask */
955 0xffff, /* dst_mask */
b34976b6 956 FALSE), /* pcrel_offset */
252b5132 957
7619e7c7
AM
958 /* Like TPREL16_LO, but next higher group of 16 bits. */
959 HOWTO (R_PPC_TPREL16_HI,
960 16, /* rightshift */
961 1, /* size (0 = byte, 1 = short, 2 = long) */
962 16, /* bitsize */
963 FALSE, /* pc_relative */
964 0, /* bitpos */
965 complain_overflow_dont, /* complain_on_overflow */
966 ppc_elf_unhandled_reloc, /* special_function */
967 "R_PPC_TPREL16_HI", /* name */
968 FALSE, /* partial_inplace */
969 0, /* src_mask */
970 0xffff, /* dst_mask */
971 FALSE), /* pcrel_offset */
972
973 /* Like TPREL16_HI, but adjust for low 16 bits. */
974 HOWTO (R_PPC_TPREL16_HA,
975 16, /* rightshift */
976 1, /* size (0 = byte, 1 = short, 2 = long) */
977 16, /* bitsize */
978 FALSE, /* pc_relative */
979 0, /* bitpos */
980 complain_overflow_dont, /* complain_on_overflow */
981 ppc_elf_unhandled_reloc, /* special_function */
982 "R_PPC_TPREL16_HA", /* name */
983 FALSE, /* partial_inplace */
984 0, /* src_mask */
985 0xffff, /* dst_mask */
986 FALSE), /* pcrel_offset */
987
988 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
989 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
990 to the first entry. */
991 HOWTO (R_PPC_GOT_TLSGD16,
252b5132
RH
992 0, /* rightshift */
993 1, /* size (0 = byte, 1 = short, 2 = long) */
994 16, /* bitsize */
b34976b6 995 FALSE, /* pc_relative */
252b5132
RH
996 0, /* bitpos */
997 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
998 ppc_elf_unhandled_reloc, /* special_function */
999 "R_PPC_GOT_TLSGD16", /* name */
b34976b6 1000 FALSE, /* partial_inplace */
252b5132
RH
1001 0, /* src_mask */
1002 0xffff, /* dst_mask */
b34976b6 1003 FALSE), /* pcrel_offset */
252b5132 1004
7619e7c7
AM
1005 /* Like GOT_TLSGD16, but no overflow. */
1006 HOWTO (R_PPC_GOT_TLSGD16_LO,
252b5132 1007 0, /* rightshift */
7619e7c7 1008 1, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 1009 16, /* bitsize */
b34976b6 1010 FALSE, /* pc_relative */
252b5132 1011 0, /* bitpos */
7619e7c7
AM
1012 complain_overflow_dont, /* complain_on_overflow */
1013 ppc_elf_unhandled_reloc, /* special_function */
1014 "R_PPC_GOT_TLSGD16_LO", /* name */
b34976b6 1015 FALSE, /* partial_inplace */
252b5132
RH
1016 0, /* src_mask */
1017 0xffff, /* dst_mask */
b34976b6 1018 FALSE), /* pcrel_offset */
252b5132 1019
7619e7c7
AM
1020 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1021 HOWTO (R_PPC_GOT_TLSGD16_HI,
1022 16, /* rightshift */
1023 1, /* size (0 = byte, 1 = short, 2 = long) */
1024 16, /* bitsize */
1025 FALSE, /* pc_relative */
1026 0, /* bitpos */
1027 complain_overflow_dont, /* complain_on_overflow */
1028 ppc_elf_unhandled_reloc, /* special_function */
1029 "R_PPC_GOT_TLSGD16_HI", /* name */
1030 FALSE, /* partial_inplace */
1031 0, /* src_mask */
1032 0xffff, /* dst_mask */
1033 FALSE), /* pcrel_offset */
252b5132 1034
7619e7c7
AM
1035 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1036 HOWTO (R_PPC_GOT_TLSGD16_HA,
1037 16, /* rightshift */
1038 1, /* size (0 = byte, 1 = short, 2 = long) */
1039 16, /* bitsize */
1040 FALSE, /* pc_relative */
1041 0, /* bitpos */
1042 complain_overflow_dont, /* complain_on_overflow */
1043 ppc_elf_unhandled_reloc, /* special_function */
1044 "R_PPC_GOT_TLSGD16_HA", /* name */
1045 FALSE, /* partial_inplace */
1046 0, /* src_mask */
1047 0xffff, /* dst_mask */
1048 FALSE), /* pcrel_offset */
1049
1050 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1051 with values (sym+add)@dtpmod and zero, and computes the offset to the
1052 first entry. */
1053 HOWTO (R_PPC_GOT_TLSLD16,
252b5132
RH
1054 0, /* rightshift */
1055 1, /* size (0 = byte, 1 = short, 2 = long) */
1056 16, /* bitsize */
7619e7c7 1057 FALSE, /* pc_relative */
252b5132
RH
1058 0, /* bitpos */
1059 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1060 ppc_elf_unhandled_reloc, /* special_function */
1061 "R_PPC_GOT_TLSLD16", /* name */
b34976b6 1062 FALSE, /* partial_inplace */
252b5132
RH
1063 0, /* src_mask */
1064 0xffff, /* dst_mask */
b34976b6 1065 FALSE), /* pcrel_offset */
252b5132 1066
7619e7c7
AM
1067 /* Like GOT_TLSLD16, but no overflow. */
1068 HOWTO (R_PPC_GOT_TLSLD16_LO,
252b5132 1069 0, /* rightshift */
7619e7c7
AM
1070 1, /* size (0 = byte, 1 = short, 2 = long) */
1071 16, /* bitsize */
b34976b6 1072 FALSE, /* pc_relative */
252b5132
RH
1073 0, /* bitpos */
1074 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1075 ppc_elf_unhandled_reloc, /* special_function */
1076 "R_PPC_GOT_TLSLD16_LO", /* name */
b34976b6 1077 FALSE, /* partial_inplace */
252b5132 1078 0, /* src_mask */
7619e7c7 1079 0xffff, /* dst_mask */
b34976b6 1080 FALSE), /* pcrel_offset */
252b5132 1081
7619e7c7
AM
1082 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1083 HOWTO (R_PPC_GOT_TLSLD16_HI,
1084 16, /* rightshift */
1085 1, /* size (0 = byte, 1 = short, 2 = long) */
1086 16, /* bitsize */
b34976b6 1087 FALSE, /* pc_relative */
252b5132
RH
1088 0, /* bitpos */
1089 complain_overflow_dont, /* complain_on_overflow */
7619e7c7
AM
1090 ppc_elf_unhandled_reloc, /* special_function */
1091 "R_PPC_GOT_TLSLD16_HI", /* name */
b34976b6 1092 FALSE, /* partial_inplace */
252b5132 1093 0, /* src_mask */
7619e7c7 1094 0xffff, /* dst_mask */
b34976b6 1095 FALSE), /* pcrel_offset */
252b5132 1096
7619e7c7
AM
1097 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1098 HOWTO (R_PPC_GOT_TLSLD16_HA,
1099 16, /* rightshift */
1100 1, /* size (0 = byte, 1 = short, 2 = long) */
1101 16, /* bitsize */
1102 FALSE, /* pc_relative */
1103 0, /* bitpos */
1104 complain_overflow_dont, /* complain_on_overflow */
1105 ppc_elf_unhandled_reloc, /* special_function */
1106 "R_PPC_GOT_TLSLD16_HA", /* name */
1107 FALSE, /* partial_inplace */
1108 0, /* src_mask */
1109 0xffff, /* dst_mask */
1110 FALSE), /* pcrel_offset */
1111
1112 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1113 the offset to the entry. */
1114 HOWTO (R_PPC_GOT_DTPREL16,
252b5132
RH
1115 0, /* rightshift */
1116 1, /* size (0 = byte, 1 = short, 2 = long) */
1117 16, /* bitsize */
b34976b6 1118 FALSE, /* pc_relative */
252b5132
RH
1119 0, /* bitpos */
1120 complain_overflow_signed, /* complain_on_overflow */
7619e7c7
AM
1121 ppc_elf_unhandled_reloc, /* special_function */
1122 "R_PPC_GOT_DTPREL16", /* name */
b34976b6 1123 FALSE, /* partial_inplace */
252b5132
RH
1124 0, /* src_mask */
1125 0xffff, /* dst_mask */
b34976b6 1126 FALSE), /* pcrel_offset */
252b5132 1127
7619e7c7
AM
1128 /* Like GOT_DTPREL16, but no overflow. */
1129 HOWTO (R_PPC_GOT_DTPREL16_LO,
1130 0, /* rightshift */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1132 16, /* bitsize */
1133 FALSE, /* pc_relative */
1134 0, /* bitpos */
1135 complain_overflow_dont, /* complain_on_overflow */
1136 ppc_elf_unhandled_reloc, /* special_function */
1137 "R_PPC_GOT_DTPREL16_LO", /* name */
1138 FALSE, /* partial_inplace */
1139 0, /* src_mask */
1140 0xffff, /* dst_mask */
1141 FALSE), /* pcrel_offset */
252b5132 1142
7619e7c7
AM
1143 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1144 HOWTO (R_PPC_GOT_DTPREL16_HI,
1145 16, /* rightshift */
1146 1, /* size (0 = byte, 1 = short, 2 = long) */
1147 16, /* bitsize */
1148 FALSE, /* pc_relative */
1149 0, /* bitpos */
1150 complain_overflow_dont, /* complain_on_overflow */
1151 ppc_elf_unhandled_reloc, /* special_function */
1152 "R_PPC_GOT_DTPREL16_HI", /* name */
1153 FALSE, /* partial_inplace */
1154 0, /* src_mask */
1155 0xffff, /* dst_mask */
1156 FALSE), /* pcrel_offset */
252b5132 1157
7619e7c7
AM
1158 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1159 HOWTO (R_PPC_GOT_DTPREL16_HA,
1160 16, /* rightshift */
1161 1, /* size (0 = byte, 1 = short, 2 = long) */
1162 16, /* bitsize */
1163 FALSE, /* pc_relative */
1164 0, /* bitpos */
1165 complain_overflow_dont, /* complain_on_overflow */
1166 ppc_elf_unhandled_reloc, /* special_function */
1167 "R_PPC_GOT_DTPREL16_HA", /* name */
1168 FALSE, /* partial_inplace */
1169 0, /* src_mask */
1170 0xffff, /* dst_mask */
1171 FALSE), /* pcrel_offset */
c3668558 1172
7619e7c7
AM
1173 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1174 offset to the entry. */
1175 HOWTO (R_PPC_GOT_TPREL16,
1176 0, /* rightshift */
1177 1, /* size (0 = byte, 1 = short, 2 = long) */
1178 16, /* bitsize */
1179 FALSE, /* pc_relative */
1180 0, /* bitpos */
1181 complain_overflow_signed, /* complain_on_overflow */
1182 ppc_elf_unhandled_reloc, /* special_function */
1183 "R_PPC_GOT_TPREL16", /* name */
1184 FALSE, /* partial_inplace */
1185 0, /* src_mask */
1186 0xffff, /* dst_mask */
1187 FALSE), /* pcrel_offset */
1188
1189 /* Like GOT_TPREL16, but no overflow. */
1190 HOWTO (R_PPC_GOT_TPREL16_LO,
1191 0, /* rightshift */
1192 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 16, /* bitsize */
1194 FALSE, /* pc_relative */
1195 0, /* bitpos */
1196 complain_overflow_dont, /* complain_on_overflow */
1197 ppc_elf_unhandled_reloc, /* special_function */
1198 "R_PPC_GOT_TPREL16_LO", /* name */
1199 FALSE, /* partial_inplace */
1200 0, /* src_mask */
1201 0xffff, /* dst_mask */
1202 FALSE), /* pcrel_offset */
1203
1204 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1205 HOWTO (R_PPC_GOT_TPREL16_HI,
1206 16, /* rightshift */
1207 1, /* size (0 = byte, 1 = short, 2 = long) */
1208 16, /* bitsize */
1209 FALSE, /* pc_relative */
1210 0, /* bitpos */
1211 complain_overflow_dont, /* complain_on_overflow */
1212 ppc_elf_unhandled_reloc, /* special_function */
1213 "R_PPC_GOT_TPREL16_HI", /* name */
1214 FALSE, /* partial_inplace */
1215 0, /* src_mask */
1216 0xffff, /* dst_mask */
1217 FALSE), /* pcrel_offset */
1218
1219 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1220 HOWTO (R_PPC_GOT_TPREL16_HA,
1221 16, /* rightshift */
1222 1, /* size (0 = byte, 1 = short, 2 = long) */
1223 16, /* bitsize */
1224 FALSE, /* pc_relative */
1225 0, /* bitpos */
1226 complain_overflow_dont, /* complain_on_overflow */
1227 ppc_elf_unhandled_reloc, /* special_function */
1228 "R_PPC_GOT_TPREL16_HA", /* name */
1229 FALSE, /* partial_inplace */
1230 0, /* src_mask */
1231 0xffff, /* dst_mask */
1232 FALSE), /* pcrel_offset */
1233
1234 /* The remaining relocs are from the Embedded ELF ABI, and are not
1235 in the SVR4 ELF ABI. */
1236
1237 /* 32 bit value resulting from the addend minus the symbol. */
1238 HOWTO (R_PPC_EMB_NADDR32, /* type */
1239 0, /* rightshift */
1240 2, /* size (0 = byte, 1 = short, 2 = long) */
1241 32, /* bitsize */
1242 FALSE, /* pc_relative */
1243 0, /* bitpos */
1244 complain_overflow_bitfield, /* complain_on_overflow */
1245 bfd_elf_generic_reloc, /* special_function */
1246 "R_PPC_EMB_NADDR32", /* name */
1247 FALSE, /* partial_inplace */
1248 0, /* src_mask */
1249 0xffffffff, /* dst_mask */
1250 FALSE), /* pcrel_offset */
1251
1252 /* 16 bit value resulting from the addend minus the symbol. */
1253 HOWTO (R_PPC_EMB_NADDR16, /* type */
1254 0, /* rightshift */
1255 1, /* size (0 = byte, 1 = short, 2 = long) */
1256 16, /* bitsize */
1257 FALSE, /* pc_relative */
1258 0, /* bitpos */
1259 complain_overflow_bitfield, /* complain_on_overflow */
1260 bfd_elf_generic_reloc, /* special_function */
1261 "R_PPC_EMB_NADDR16", /* name */
1262 FALSE, /* partial_inplace */
1263 0, /* src_mask */
1264 0xffff, /* dst_mask */
1265 FALSE), /* pcrel_offset */
1266
1267 /* 16 bit value resulting from the addend minus the symbol. */
1268 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1269 0, /* rightshift */
1270 1, /* size (0 = byte, 1 = short, 2 = long) */
1271 16, /* bitsize */
1272 FALSE, /* pc_relative */
1273 0, /* bitpos */
1274 complain_overflow_dont,/* complain_on_overflow */
1275 bfd_elf_generic_reloc, /* special_function */
1276 "R_PPC_EMB_ADDR16_LO", /* name */
1277 FALSE, /* partial_inplace */
1278 0, /* src_mask */
1279 0xffff, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1281
1282 /* The high order 16 bits of the addend minus the symbol. */
1283 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1284 16, /* rightshift */
1285 1, /* size (0 = byte, 1 = short, 2 = long) */
1286 16, /* bitsize */
1287 FALSE, /* pc_relative */
1288 0, /* bitpos */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 bfd_elf_generic_reloc, /* special_function */
1291 "R_PPC_EMB_NADDR16_HI", /* name */
1292 FALSE, /* partial_inplace */
1293 0, /* src_mask */
1294 0xffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1296
1297 /* The high order 16 bits of the result of the addend minus the address,
1298 plus 1 if the contents of the low 16 bits, treated as a signed number,
1299 is negative. */
1300 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1301 16, /* rightshift */
1302 1, /* size (0 = byte, 1 = short, 2 = long) */
1303 16, /* bitsize */
1304 FALSE, /* pc_relative */
1305 0, /* bitpos */
1306 complain_overflow_dont, /* complain_on_overflow */
25dbc73a
AM
1307 ppc_elf_addr16_ha_reloc, /* special_function */
1308 "R_PPC_EMB_NADDR16_HA", /* name */
1309 FALSE, /* partial_inplace */
1310 0, /* src_mask */
1311 0xffff, /* dst_mask */
1312 FALSE), /* pcrel_offset */
1313
1314 /* 16 bit value resulting from allocating a 4 byte word to hold an
1315 address in the .sdata section, and returning the offset from
1316 _SDA_BASE_ for that relocation. */
1317 HOWTO (R_PPC_EMB_SDAI16, /* type */
1318 0, /* rightshift */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 16, /* bitsize */
1321 FALSE, /* pc_relative */
1322 0, /* bitpos */
bd6c6e2b 1323 complain_overflow_signed, /* complain_on_overflow */
25dbc73a
AM
1324 bfd_elf_generic_reloc, /* special_function */
1325 "R_PPC_EMB_SDAI16", /* name */
1326 FALSE, /* partial_inplace */
1327 0, /* src_mask */
1328 0xffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1330
1331 /* 16 bit value resulting from allocating a 4 byte word to hold an
1332 address in the .sdata2 section, and returning the offset from
1333 _SDA2_BASE_ for that relocation. */
1334 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1335 0, /* rightshift */
1336 1, /* size (0 = byte, 1 = short, 2 = long) */
1337 16, /* bitsize */
1338 FALSE, /* pc_relative */
1339 0, /* bitpos */
bd6c6e2b 1340 complain_overflow_signed, /* complain_on_overflow */
25dbc73a
AM
1341 bfd_elf_generic_reloc, /* special_function */
1342 "R_PPC_EMB_SDA2I16", /* name */
1343 FALSE, /* partial_inplace */
1344 0, /* src_mask */
1345 0xffff, /* dst_mask */
1346 FALSE), /* pcrel_offset */
1347
1348 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1349 small data items. */
1350 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1351 0, /* rightshift */
1352 1, /* size (0 = byte, 1 = short, 2 = long) */
1353 16, /* bitsize */
1354 FALSE, /* pc_relative */
1355 0, /* bitpos */
1356 complain_overflow_signed, /* complain_on_overflow */
1357 bfd_elf_generic_reloc, /* special_function */
1358 "R_PPC_EMB_SDA2REL", /* name */
1359 FALSE, /* partial_inplace */
1360 0, /* src_mask */
1361 0xffff, /* dst_mask */
1362 FALSE), /* pcrel_offset */
1363
1364 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1365 signed offset from the appropriate base, and filling in the register
1366 field with the appropriate register (0, 2, or 13). */
1367 HOWTO (R_PPC_EMB_SDA21, /* type */
1368 0, /* rightshift */
1369 2, /* size (0 = byte, 1 = short, 2 = long) */
1370 16, /* bitsize */
1371 FALSE, /* pc_relative */
1372 0, /* bitpos */
1373 complain_overflow_signed, /* complain_on_overflow */
1374 bfd_elf_generic_reloc, /* special_function */
1375 "R_PPC_EMB_SDA21", /* name */
1376 FALSE, /* partial_inplace */
1377 0, /* src_mask */
1378 0xffff, /* dst_mask */
1379 FALSE), /* pcrel_offset */
1380
1381 /* Relocation not handled: R_PPC_EMB_MRKREF */
1382 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1383 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1384 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1385 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1386 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1387
1388 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1389 in the 16 bit signed offset from the appropriate base, and filling in the
1390 register field with the appropriate register (0, 2, or 13). */
1391 HOWTO (R_PPC_EMB_RELSDA, /* type */
1392 0, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 16, /* bitsize */
ddfd6795 1395 FALSE, /* pc_relative */
25dbc73a
AM
1396 0, /* bitpos */
1397 complain_overflow_signed, /* complain_on_overflow */
1398 bfd_elf_generic_reloc, /* special_function */
1399 "R_PPC_EMB_RELSDA", /* name */
1400 FALSE, /* partial_inplace */
1401 0, /* src_mask */
1402 0xffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1404
b9c361e0
JL
1405 /* A relative 8 bit branch. */
1406 HOWTO (R_PPC_VLE_REL8, /* type */
1407 1, /* rightshift */
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1409 8, /* bitsize */
1410 TRUE, /* pc_relative */
1411 0, /* bitpos */
1412 complain_overflow_signed, /* complain_on_overflow */
1413 bfd_elf_generic_reloc, /* special_function */
1414 "R_PPC_VLE_REL8", /* name */
1415 FALSE, /* partial_inplace */
1416 0, /* src_mask */
1417 0xff, /* dst_mask */
1418 TRUE), /* pcrel_offset */
68ffbac6 1419
b9c361e0
JL
1420 /* A relative 15 bit branch. */
1421 HOWTO (R_PPC_VLE_REL15, /* type */
1422 1, /* rightshift */
1423 2, /* size (0 = byte, 1 = short, 2 = long) */
1424 15, /* bitsize */
1425 TRUE, /* pc_relative */
1426 1, /* bitpos */
1427 complain_overflow_signed, /* complain_on_overflow */
1428 bfd_elf_generic_reloc, /* special_function */
1429 "R_PPC_VLE_REL15", /* name */
1430 FALSE, /* partial_inplace */
1431 0, /* src_mask */
1432 0xfe, /* dst_mask */
1433 TRUE), /* pcrel_offset */
1434
68ffbac6 1435 /* A relative 24 bit branch. */
b9c361e0
JL
1436 HOWTO (R_PPC_VLE_REL24, /* type */
1437 1, /* rightshift */
1438 2, /* size (0 = byte, 1 = short, 2 = long) */
1439 24, /* bitsize */
1440 TRUE, /* pc_relative */
1441 1, /* bitpos */
1442 complain_overflow_signed, /* complain_on_overflow */
1443 bfd_elf_generic_reloc, /* special_function */
1444 "R_PPC_VLE_REL24", /* name */
1445 FALSE, /* partial_inplace */
1446 0, /* src_mask */
1447 0x1fffffe, /* dst_mask */
1448 TRUE), /* pcrel_offset */
1449
1450 /* The 16 LSBS in split16a format. */
1451 HOWTO (R_PPC_VLE_LO16A, /* type */
1452 0, /* rightshift */
1453 2, /* size (0 = byte, 1 = short, 2 = long) */
1454 32, /* bitsize */
bdaacd3a 1455 FALSE, /* pc_relative */
b9c361e0
JL
1456 0, /* bitpos */
1457 complain_overflow_bitfield, /* complain_on_overflow */
1458 bfd_elf_generic_reloc, /* special_function */
1459 "R_PPC_VLE_LO16A", /* name */
1460 FALSE, /* partial_inplace */
1461 0, /* src_mask */
bdaacd3a 1462 0x1f007ff, /* dst_mask */
b9c361e0
JL
1463 FALSE), /* pcrel_offset */
1464
1465 /* The 16 LSBS in split16d format. */
1466 HOWTO (R_PPC_VLE_LO16D, /* type */
1467 0, /* rightshift */
1468 2, /* size (0 = byte, 1 = short, 2 = long) */
1469 32, /* bitsize */
1470 FALSE, /* pc_relative */
1471 0, /* bitpos */
1472 complain_overflow_bitfield, /* complain_on_overflow */
1473 bfd_elf_generic_reloc, /* special_function */
1474 "R_PPC_VLE_LO16D", /* name */
1475 FALSE, /* partial_inplace */
1476 0, /* src_mask */
1477 0x1f07ff, /* dst_mask */
1478 FALSE), /* pcrel_offset */
1479
1480 /* Bits 16-31 split16a format. */
1481 HOWTO (R_PPC_VLE_HI16A, /* type */
1482 0, /* rightshift */
1483 2, /* size (0 = byte, 1 = short, 2 = long) */
1484 32, /* bitsize */
1485 FALSE, /* pc_relative */
1486 0, /* bitpos */
1487 complain_overflow_bitfield, /* complain_on_overflow */
1488 bfd_elf_generic_reloc, /* special_function */
1489 "R_PPC_VLE_HI16A", /* name */
1490 FALSE, /* partial_inplace */
1491 0, /* src_mask */
bdaacd3a 1492 0x1f007ff, /* dst_mask */
b9c361e0
JL
1493 FALSE), /* pcrel_offset */
1494
1495 /* Bits 16-31 split16d format. */
1496 HOWTO (R_PPC_VLE_HI16D, /* type */
1497 0, /* rightshift */
1498 2, /* size (0 = byte, 1 = short, 2 = long) */
1499 32, /* bitsize */
1500 FALSE, /* pc_relative */
1501 0, /* bitpos */
1502 complain_overflow_bitfield, /* complain_on_overflow */
1503 bfd_elf_generic_reloc, /* special_function */
1504 "R_PPC_VLE_HI16D", /* name */
1505 FALSE, /* partial_inplace */
1506 0, /* src_mask */
1507 0x1f07ff, /* dst_mask */
1508 FALSE), /* pcrel_offset */
1509
1510 /* Bits 16-31 (High Adjusted) in split16a format. */
1511 HOWTO (R_PPC_VLE_HA16A, /* type */
1512 0, /* rightshift */
1513 2, /* size (0 = byte, 1 = short, 2 = long) */
1514 32, /* bitsize */
1515 FALSE, /* pc_relative */
1516 0, /* bitpos */
1517 complain_overflow_bitfield, /* complain_on_overflow */
1518 bfd_elf_generic_reloc, /* special_function */
1519 "R_PPC_VLE_HA16A", /* name */
1520 FALSE, /* partial_inplace */
1521 0, /* src_mask */
bdaacd3a 1522 0x1f007ff, /* dst_mask */
b9c361e0
JL
1523 FALSE), /* pcrel_offset */
1524
1525 /* Bits 16-31 (High Adjusted) in split16d format. */
1526 HOWTO (R_PPC_VLE_HA16D, /* type */
1527 0, /* rightshift */
1528 2, /* size (0 = byte, 1 = short, 2 = long) */
1529 32, /* bitsize */
1530 FALSE, /* pc_relative */
1531 0, /* bitpos */
1532 complain_overflow_bitfield, /* complain_on_overflow */
1533 bfd_elf_generic_reloc, /* special_function */
1534 "R_PPC_VLE_HA16D", /* name */
1535 FALSE, /* partial_inplace */
1536 0, /* src_mask */
1537 0x1f07ff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1539
1540 /* This reloc does nothing. */
1541 HOWTO (R_PPC_VLE_SDA21, /* type */
1542 0, /* rightshift */
1543 2, /* size (0 = byte, 1 = short, 2 = long) */
1544 32, /* bitsize */
1545 FALSE, /* pc_relative */
1546 0, /* bitpos */
1547 complain_overflow_bitfield, /* complain_on_overflow */
1548 bfd_elf_generic_reloc, /* special_function */
1549 "R_PPC_VLE_SDA21", /* name */
1550 FALSE, /* partial_inplace */
1551 0, /* src_mask */
1552 0xffff, /* dst_mask */
1553 FALSE), /* pcrel_offset */
1554
1555 /* This reloc does nothing. */
1556 HOWTO (R_PPC_VLE_SDA21_LO, /* type */
1557 0, /* rightshift */
1558 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 32, /* bitsize */
1560 FALSE, /* pc_relative */
1561 0, /* bitpos */
1562 complain_overflow_bitfield, /* complain_on_overflow */
1563 bfd_elf_generic_reloc, /* special_function */
1564 "R_PPC_VLE_SDA21_LO", /* name */
1565 FALSE, /* partial_inplace */
1566 0, /* src_mask */
1567 0, /* dst_mask */
1568 FALSE), /* pcrel_offset */
1569
1570 /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */
1571 HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
1572 0, /* rightshift */
1573 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 32, /* bitsize */
1575 FALSE, /* pc_relative */
1576 0, /* bitpos */
1577 complain_overflow_bitfield, /* complain_on_overflow */
1578 bfd_elf_generic_reloc, /* special_function */
1579 "R_PPC_VLE_SDAREL_LO16A", /* name */
1580 FALSE, /* partial_inplace */
1581 0, /* src_mask */
bdaacd3a 1582 0x1f007ff, /* dst_mask */
b9c361e0
JL
1583 FALSE), /* pcrel_offset */
1584
1585 /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */
1586 /* This reloc does nothing. */
1587 HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
1588 0, /* rightshift */
1589 2, /* size (0 = byte, 1 = short, 2 = long) */
1590 32, /* bitsize */
1591 FALSE, /* pc_relative */
1592 0, /* bitpos */
1593 complain_overflow_bitfield, /* complain_on_overflow */
1594 bfd_elf_generic_reloc, /* special_function */
1595 "R_PPC_VLE_SDAREL_LO16D", /* name */
1596 FALSE, /* partial_inplace */
1597 0, /* src_mask */
1598 0x1f07ff, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1600
1601 /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */
1602 HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
1603 0, /* rightshift */
1604 2, /* size (0 = byte, 1 = short, 2 = long) */
1605 32, /* bitsize */
1606 FALSE, /* pc_relative */
1607 0, /* bitpos */
1608 complain_overflow_bitfield, /* complain_on_overflow */
1609 bfd_elf_generic_reloc, /* special_function */
1610 "R_PPC_VLE_SDAREL_HI16A", /* name */
1611 FALSE, /* partial_inplace */
1612 0, /* src_mask */
bdaacd3a 1613 0x1f007ff, /* dst_mask */
b9c361e0
JL
1614 FALSE), /* pcrel_offset */
1615
1616 /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */
1617 HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
1618 0, /* rightshift */
1619 2, /* size (0 = byte, 1 = short, 2 = long) */
1620 32, /* bitsize */
1621 FALSE, /* pc_relative */
1622 0, /* bitpos */
1623 complain_overflow_bitfield, /* complain_on_overflow */
1624 bfd_elf_generic_reloc, /* special_function */
1625 "R_PPC_VLE_SDAREL_HI16D", /* name */
1626 FALSE, /* partial_inplace */
1627 0, /* src_mask */
1628 0x1f07ff, /* dst_mask */
1629 FALSE), /* pcrel_offset */
1630
1631 /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */
1632 HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
1633 0, /* rightshift */
1634 2, /* size (0 = byte, 1 = short, 2 = long) */
1635 32, /* bitsize */
1636 FALSE, /* pc_relative */
1637 0, /* bitpos */
1638 complain_overflow_bitfield, /* complain_on_overflow */
1639 bfd_elf_generic_reloc, /* special_function */
1640 "R_PPC_VLE_SDAREL_HA16A", /* name */
1641 FALSE, /* partial_inplace */
1642 0, /* src_mask */
bdaacd3a 1643 0x1f007ff, /* dst_mask */
b9c361e0
JL
1644 FALSE), /* pcrel_offset */
1645
1646 /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */
1647 HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
1648 0, /* rightshift */
1649 2, /* size (0 = byte, 1 = short, 2 = long) */
1650 32, /* bitsize */
1651 FALSE, /* pc_relative */
1652 0, /* bitpos */
1653 complain_overflow_bitfield, /* complain_on_overflow */
1654 bfd_elf_generic_reloc, /* special_function */
1655 "R_PPC_VLE_SDAREL_HA16D", /* name */
1656 FALSE, /* partial_inplace */
1657 0, /* src_mask */
1658 0x1f07ff, /* dst_mask */
1659 FALSE), /* pcrel_offset */
1660
e054468f
AM
1661 HOWTO (R_PPC_IRELATIVE, /* type */
1662 0, /* rightshift */
1663 2, /* size (0 = byte, 1 = short, 2 = long) */
1664 32, /* bitsize */
1665 FALSE, /* pc_relative */
1666 0, /* bitpos */
1667 complain_overflow_bitfield, /* complain_on_overflow */
1668 bfd_elf_generic_reloc, /* special_function */
1669 "R_PPC_IRELATIVE", /* name */
1670 FALSE, /* partial_inplace */
1671 0, /* src_mask */
1672 0xffffffff, /* dst_mask */
1673 FALSE), /* pcrel_offset */
1674
d7128ce4
AM
1675 /* A 16 bit relative relocation. */
1676 HOWTO (R_PPC_REL16, /* type */
1677 0, /* rightshift */
1678 1, /* size (0 = byte, 1 = short, 2 = long) */
1679 16, /* bitsize */
1680 TRUE, /* pc_relative */
1681 0, /* bitpos */
1682 complain_overflow_bitfield, /* complain_on_overflow */
1683 bfd_elf_generic_reloc, /* special_function */
1684 "R_PPC_REL16", /* name */
1685 FALSE, /* partial_inplace */
1686 0, /* src_mask */
1687 0xffff, /* dst_mask */
1688 TRUE), /* pcrel_offset */
1689
1690 /* A 16 bit relative relocation without overflow. */
1691 HOWTO (R_PPC_REL16_LO, /* type */
1692 0, /* rightshift */
1693 1, /* size (0 = byte, 1 = short, 2 = long) */
1694 16, /* bitsize */
1695 TRUE, /* pc_relative */
1696 0, /* bitpos */
1697 complain_overflow_dont,/* complain_on_overflow */
1698 bfd_elf_generic_reloc, /* special_function */
1699 "R_PPC_REL16_LO", /* name */
1700 FALSE, /* partial_inplace */
1701 0, /* src_mask */
1702 0xffff, /* dst_mask */
1703 TRUE), /* pcrel_offset */
1704
1705 /* The high order 16 bits of a relative address. */
1706 HOWTO (R_PPC_REL16_HI, /* type */
1707 16, /* rightshift */
1708 1, /* size (0 = byte, 1 = short, 2 = long) */
1709 16, /* bitsize */
1710 TRUE, /* pc_relative */
1711 0, /* bitpos */
1712 complain_overflow_dont, /* complain_on_overflow */
1713 bfd_elf_generic_reloc, /* special_function */
1714 "R_PPC_REL16_HI", /* name */
1715 FALSE, /* partial_inplace */
1716 0, /* src_mask */
1717 0xffff, /* dst_mask */
1718 TRUE), /* pcrel_offset */
1719
1720 /* The high order 16 bits of a relative address, plus 1 if the contents of
1721 the low 16 bits, treated as a signed number, is negative. */
1722 HOWTO (R_PPC_REL16_HA, /* type */
1723 16, /* rightshift */
1724 1, /* size (0 = byte, 1 = short, 2 = long) */
1725 16, /* bitsize */
1726 TRUE, /* pc_relative */
1727 0, /* bitpos */
1728 complain_overflow_dont, /* complain_on_overflow */
1729 ppc_elf_addr16_ha_reloc, /* special_function */
1730 "R_PPC_REL16_HA", /* name */
1731 FALSE, /* partial_inplace */
1732 0, /* src_mask */
1733 0xffff, /* dst_mask */
1734 TRUE), /* pcrel_offset */
1735
25dbc73a
AM
1736 /* GNU extension to record C++ vtable hierarchy. */
1737 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1738 0, /* rightshift */
1739 0, /* size (0 = byte, 1 = short, 2 = long) */
1740 0, /* bitsize */
1741 FALSE, /* pc_relative */
1742 0, /* bitpos */
1743 complain_overflow_dont, /* complain_on_overflow */
1744 NULL, /* special_function */
1745 "R_PPC_GNU_VTINHERIT", /* name */
1746 FALSE, /* partial_inplace */
1747 0, /* src_mask */
1748 0, /* dst_mask */
1749 FALSE), /* pcrel_offset */
1750
1751 /* GNU extension to record C++ vtable member usage. */
1752 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1753 0, /* rightshift */
1754 0, /* size (0 = byte, 1 = short, 2 = long) */
1755 0, /* bitsize */
1756 FALSE, /* pc_relative */
1757 0, /* bitpos */
1758 complain_overflow_dont, /* complain_on_overflow */
1759 NULL, /* special_function */
1760 "R_PPC_GNU_VTENTRY", /* name */
7619e7c7
AM
1761 FALSE, /* partial_inplace */
1762 0, /* src_mask */
25dbc73a 1763 0, /* dst_mask */
7619e7c7
AM
1764 FALSE), /* pcrel_offset */
1765
25dbc73a
AM
1766 /* Phony reloc to handle AIX style TOC entries. */
1767 HOWTO (R_PPC_TOC16, /* type */
7619e7c7
AM
1768 0, /* rightshift */
1769 1, /* size (0 = byte, 1 = short, 2 = long) */
1770 16, /* bitsize */
1771 FALSE, /* pc_relative */
1772 0, /* bitpos */
25dbc73a 1773 complain_overflow_signed, /* complain_on_overflow */
7619e7c7 1774 bfd_elf_generic_reloc, /* special_function */
25dbc73a 1775 "R_PPC_TOC16", /* name */
7619e7c7
AM
1776 FALSE, /* partial_inplace */
1777 0, /* src_mask */
1778 0xffff, /* dst_mask */
1779 FALSE), /* pcrel_offset */
25dbc73a 1780};
70a38d42
SDJ
1781
1782/* External 32-bit PPC structure for PRPSINFO. This structure is
1783 ABI-defined, thus we choose to use char arrays here in order to
1784 avoid dealing with different types in different architectures.
1785
1786 The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
1787 most non-PPC architectures use `short int'.
1788
1789 This structure will ultimately be written in the corefile's note
1790 section, as the PRPSINFO. */
1791
1792struct elf_external_ppc_linux_prpsinfo32
1793 {
1794 char pr_state; /* Numeric process state. */
1795 char pr_sname; /* Char for pr_state. */
1796 char pr_zomb; /* Zombie. */
1797 char pr_nice; /* Nice val. */
1798 char pr_flag[4]; /* Flags. */
1799 char pr_uid[4];
1800 char pr_gid[4];
1801 char pr_pid[4];
1802 char pr_ppid[4];
1803 char pr_pgrp[4];
1804 char pr_sid[4];
1805 char pr_fname[16]; /* Filename of executable. */
1806 char pr_psargs[80]; /* Initial part of arg list. */
1807 };
1808
1809/* Helper macro to swap (properly handling endianess) things from the
1810 `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
1811 structure.
1812
1813 Note that FROM should be a pointer, and TO should be the explicit type. */
1814
1815#define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \
1816 do \
1817 { \
1818 H_PUT_8 (abfd, from->pr_state, &to.pr_state); \
1819 H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \
1820 H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \
1821 H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \
1822 H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \
1823 H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \
1824 H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \
1825 H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \
1826 H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \
1827 H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \
1828 H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \
1829 strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \
1830 strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
1831 } while (0)
1832
25dbc73a
AM
1833\f
1834/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1835
1836static void
1837ppc_elf_howto_init (void)
1838{
1839 unsigned int i, type;
1840
1841 for (i = 0;
1842 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1843 i++)
1844 {
1845 type = ppc_elf_howto_raw[i].type;
1846 if (type >= (sizeof (ppc_elf_howto_table)
1847 / sizeof (ppc_elf_howto_table[0])))
1848 abort ();
1849 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1850 }
1851}
1852
1853static reloc_howto_type *
1854ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1855 bfd_reloc_code_real_type code)
1856{
1857 enum elf_ppc_reloc_type r;
1858
1859 /* Initialize howto table if not already done. */
1860 if (!ppc_elf_howto_table[R_PPC_ADDR32])
1861 ppc_elf_howto_init ();
1862
1863 switch (code)
1864 {
1865 default:
1866 return NULL;
1867
1868 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
1869 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
1870 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
1fe532cf 1871 case BFD_RELOC_PPC64_ADDR16_DS:
25dbc73a 1872 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
1fe532cf 1873 case BFD_RELOC_PPC64_ADDR16_LO_DS:
25dbc73a
AM
1874 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
1875 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
1876 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
1877 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
1878 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
1879 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
1880 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
1881 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
1882 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
1883 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
1fe532cf 1884 case BFD_RELOC_PPC64_GOT16_DS:
25dbc73a 1885 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
1fe532cf 1886 case BFD_RELOC_PPC64_GOT16_LO_DS:
25dbc73a
AM
1887 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
1888 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
1889 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
1890 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
1891 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
1892 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
1893 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
1894 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
1895 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
1896 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
1fe532cf 1897 case BFD_RELOC_PPC64_PLT16_LO_DS:
25dbc73a
AM
1898 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
1899 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
1900 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
1901 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
1fe532cf 1902 case BFD_RELOC_PPC64_SECTOFF_DS:
25dbc73a 1903 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
1fe532cf 1904 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
25dbc73a
AM
1905 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
1906 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
1907 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
1908 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
1fe532cf 1909 case BFD_RELOC_PPC64_TOC16_DS:
25dbc73a
AM
1910 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
1911 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
727fc41e
AM
1912 case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break;
1913 case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break;
25dbc73a 1914 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
1fe532cf 1915 case BFD_RELOC_PPC64_TPREL16_DS:
25dbc73a 1916 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
1fe532cf 1917 case BFD_RELOC_PPC64_TPREL16_LO_DS:
25dbc73a
AM
1918 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
1919 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
1920 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
1921 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
1fe532cf 1922 case BFD_RELOC_PPC64_DTPREL16_DS:
25dbc73a 1923 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
1fe532cf 1924 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
25dbc73a
AM
1925 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
1926 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
1927 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
1928 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
1929 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
1930 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
1931 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
1932 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
1933 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
1934 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
1935 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
1936 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
1937 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
1938 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
1939 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
1940 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
1941 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
1942 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
1943 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
1944 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
1945 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
1946 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
1947 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
1948 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
1949 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
1950 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
1951 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
1952 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
1953 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
1954 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
1955 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
1956 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
1957 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
1958 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
1959 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
1960 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
b9c361e0
JL
1961 case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break;
1962 case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break;
1963 case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break;
1964 case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break;
1965 case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break;
1966 case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break;
1967 case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break;
1968 case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break;
1969 case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break;
1970 case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break;
1971 case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break;
1972 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
1973 r = R_PPC_VLE_SDAREL_LO16A;
1974 break;
1975 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
1976 r = R_PPC_VLE_SDAREL_LO16D;
1977 break;
1978 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
1979 r = R_PPC_VLE_SDAREL_HI16A;
1980 break;
1981 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
1982 r = R_PPC_VLE_SDAREL_HI16D;
1983 break;
1984 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
1985 r = R_PPC_VLE_SDAREL_HA16A;
1986 break;
1987 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
1988 r = R_PPC_VLE_SDAREL_HA16D;
1989 break;
d7128ce4
AM
1990 case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break;
1991 case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break;
1992 case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break;
1993 case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break;
25dbc73a
AM
1994 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
1995 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
1996 }
1997
1998 return ppc_elf_howto_table[r];
1999};
2000
157090f7
AM
2001static reloc_howto_type *
2002ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2003 const char *r_name)
2004{
2005 unsigned int i;
2006
2007 for (i = 0;
2008 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
2009 i++)
2010 if (ppc_elf_howto_raw[i].name != NULL
2011 && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
2012 return &ppc_elf_howto_raw[i];
2013
2014 return NULL;
2015}
2016
25dbc73a
AM
2017/* Set the howto pointer for a PowerPC ELF reloc. */
2018
2019static void
2020ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2021 arelent *cache_ptr,
2022 Elf_Internal_Rela *dst)
2023{
2024 /* Initialize howto table if not already done. */
2025 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2026 ppc_elf_howto_init ();
2027
2028 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
2029 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
375de94a
AM
2030
2031 /* Just because the above assert didn't trigger doesn't mean that
2032 ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */
2033 if (!cache_ptr->howto)
2034 {
2035 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2036 abfd, ELF32_R_TYPE (dst->r_info));
2037 bfd_set_error (bfd_error_bad_value);
2038
2039 cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
2040 }
25dbc73a
AM
2041}
2042
d7128ce4 2043/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */
25dbc73a
AM
2044
2045static bfd_reloc_status_type
2046ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2047 arelent *reloc_entry,
2048 asymbol *symbol,
2049 void *data ATTRIBUTE_UNUSED,
2050 asection *input_section,
2051 bfd *output_bfd,
2052 char **error_message ATTRIBUTE_UNUSED)
2053{
2054 bfd_vma relocation;
2055
2056 if (output_bfd != NULL)
2057 {
2058 reloc_entry->address += input_section->output_offset;
2059 return bfd_reloc_ok;
2060 }
2061
2062 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2063 return bfd_reloc_outofrange;
2064
2065 if (bfd_is_com_section (symbol->section))
2066 relocation = 0;
2067 else
2068 relocation = symbol->value;
2069
2070 relocation += symbol->section->output_section->vma;
2071 relocation += symbol->section->output_offset;
2072 relocation += reloc_entry->addend;
d7128ce4
AM
2073 if (reloc_entry->howto->pc_relative)
2074 relocation -= reloc_entry->address;
25dbc73a
AM
2075
2076 reloc_entry->addend += (relocation & 0x8000) << 1;
2077
2078 return bfd_reloc_continue;
2079}
2080
2081static bfd_reloc_status_type
2082ppc_elf_unhandled_reloc (bfd *abfd,
2083 arelent *reloc_entry,
2084 asymbol *symbol,
2085 void *data,
2086 asection *input_section,
2087 bfd *output_bfd,
2088 char **error_message)
2089{
2090 /* If this is a relocatable link (output_bfd test tells us), just
2091 call the generic function. Any adjustment will be done at final
2092 link time. */
2093 if (output_bfd != NULL)
2094 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2095 input_section, output_bfd, error_message);
2096
2097 if (error_message != NULL)
2098 {
2099 static char buf[60];
2100 sprintf (buf, _("generic linker can't handle %s"),
2101 reloc_entry->howto->name);
2102 *error_message = buf;
2103 }
2104 return bfd_reloc_dangerous;
2105}
2106\f
2107/* Sections created by the linker. */
2108
2109typedef struct elf_linker_section
2110{
c9a2f333 2111 /* Pointer to the bfd section. */
25dbc73a 2112 asection *section;
c9a2f333
AM
2113 /* Section name. */
2114 const char *name;
2115 /* Associated bss section name. */
2116 const char *bss_name;
2117 /* Associated symbol name. */
2118 const char *sym_name;
046183de
AM
2119 /* Associated symbol. */
2120 struct elf_link_hash_entry *sym;
25dbc73a
AM
2121} elf_linker_section_t;
2122
2123/* Linked list of allocated pointer entries. This hangs off of the
2124 symbol lists, and provides allows us to return different pointers,
2125 based on different addend's. */
2126
2127typedef struct elf_linker_section_pointers
2128{
2129 /* next allocated pointer for this symbol */
2130 struct elf_linker_section_pointers *next;
2131 /* offset of pointer from beginning of section */
2132 bfd_vma offset;
2133 /* addend used */
2134 bfd_vma addend;
2135 /* which linker section this is */
2136 elf_linker_section_t *lsect;
25dbc73a
AM
2137} elf_linker_section_pointers_t;
2138
2139struct ppc_elf_obj_tdata
2140{
2141 struct elf_obj_tdata elf;
2142
2143 /* A mapping from local symbols to offsets into the various linker
2144 sections added. This is index by the symbol index. */
2145 elf_linker_section_pointers_t **linker_section_pointers;
016687f8
AM
2146
2147 /* Flags used to auto-detect plt type. */
2148 unsigned int makes_plt_call : 1;
2149 unsigned int has_rel16 : 1;
25dbc73a
AM
2150};
2151
2152#define ppc_elf_tdata(bfd) \
2153 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
7619e7c7 2154
25dbc73a
AM
2155#define elf_local_ptr_offsets(bfd) \
2156 (ppc_elf_tdata (bfd)->linker_section_pointers)
7619e7c7 2157
0c8d6e5c
AM
2158#define is_ppc_elf(bfd) \
2159 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2160 && elf_object_id (bfd) == PPC32_ELF_DATA)
0c8d6e5c 2161
25dbc73a 2162/* Override the generic function because we store some extras. */
7619e7c7 2163
25dbc73a
AM
2164static bfd_boolean
2165ppc_elf_mkobject (bfd *abfd)
2166{
0ffa91dd 2167 return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
4dfe6ac6 2168 PPC32_ELF_DATA);
25dbc73a 2169}
7619e7c7 2170
25dbc73a
AM
2171/* Fix bad default arch selected for a 32 bit input bfd when the
2172 default is 64 bit. */
7619e7c7 2173
25dbc73a
AM
2174static bfd_boolean
2175ppc_elf_object_p (bfd *abfd)
2176{
2177 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2178 {
2179 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
7619e7c7 2180
25dbc73a
AM
2181 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2182 {
2183 /* Relies on arch after 64 bit default being 32 bit default. */
2184 abfd->arch_info = abfd->arch_info->next;
2185 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2186 }
2187 }
2188 return TRUE;
2189}
7619e7c7 2190
25dbc73a 2191/* Function to set whether a module needs the -mrelocatable bit set. */
7619e7c7 2192
25dbc73a
AM
2193static bfd_boolean
2194ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2195{
2196 BFD_ASSERT (!elf_flags_init (abfd)
2197 || elf_elfheader (abfd)->e_flags == flags);
7619e7c7 2198
25dbc73a
AM
2199 elf_elfheader (abfd)->e_flags = flags;
2200 elf_flags_init (abfd) = TRUE;
2201 return TRUE;
2202}
2203
25dbc73a 2204/* Support for core dump NOTE sections. */
deaaf2f3 2205
b34976b6 2206static bfd_boolean
25dbc73a 2207ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
252b5132 2208{
25dbc73a
AM
2209 int offset;
2210 unsigned int size;
252b5132 2211
25dbc73a
AM
2212 switch (note->descsz)
2213 {
2214 default:
2215 return FALSE;
252b5132 2216
25dbc73a
AM
2217 case 268: /* Linux/PPC. */
2218 /* pr_cursig */
228e534f 2219 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
deaaf2f3 2220
25dbc73a 2221 /* pr_pid */
228e534f 2222 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
9abc968f 2223
25dbc73a
AM
2224 /* pr_reg */
2225 offset = 72;
2226 size = 192;
deaaf2f3 2227
25dbc73a
AM
2228 break;
2229 }
deaaf2f3 2230
25dbc73a
AM
2231 /* Make a ".reg/999" section. */
2232 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2233 size, note->descpos + offset);
2234}
252b5132 2235
25dbc73a
AM
2236static bfd_boolean
2237ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2238{
2239 switch (note->descsz)
deaaf2f3 2240 {
25dbc73a
AM
2241 default:
2242 return FALSE;
deaaf2f3 2243
25dbc73a 2244 case 128: /* Linux/PPC elf_prpsinfo. */
228e534f 2245 elf_tdata (abfd)->core->pid
bc989cdc 2246 = bfd_get_32 (abfd, note->descdata + 16);
228e534f 2247 elf_tdata (abfd)->core->program
25dbc73a 2248 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
228e534f 2249 elf_tdata (abfd)->core->command
25dbc73a
AM
2250 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2251 }
9abc968f 2252
25dbc73a
AM
2253 /* Note that for some reason, a spurious space is tacked
2254 onto the end of the args in some (at least one anyway)
2255 implementations, so strip it off if it exists. */
70bccea4 2256
25dbc73a 2257 {
228e534f 2258 char *command = elf_tdata (abfd)->core->command;
25dbc73a 2259 int n = strlen (command);
70bccea4 2260
25dbc73a
AM
2261 if (0 < n && command[n - 1] == ' ')
2262 command[n - 1] = '\0';
2263 }
deaaf2f3 2264
25dbc73a
AM
2265 return TRUE;
2266}
deaaf2f3 2267
70a38d42
SDJ
2268char *
2269elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
2270 const struct elf_internal_linux_prpsinfo *prpsinfo)
2271{
2272 struct elf_external_ppc_linux_prpsinfo32 data;
2273
2274 memset (&data, 0, sizeof (data));
2275 PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
2276
2277 return elfcore_write_note (abfd, buf, bufsiz,
2278 "CORE", NT_PRPSINFO, &data, sizeof (data));
2279}
2280
183e98be
AM
2281static char *
2282ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
2283{
2284 switch (note_type)
2285 {
2286 default:
2287 return NULL;
2288
2289 case NT_PRPSINFO:
2290 {
2291 char data[128];
2292 va_list ap;
2293
2294 va_start (ap, note_type);
75cd47ed 2295 memset (data, 0, sizeof (data));
183e98be
AM
2296 strncpy (data + 32, va_arg (ap, const char *), 16);
2297 strncpy (data + 48, va_arg (ap, const char *), 80);
2298 va_end (ap);
2299 return elfcore_write_note (abfd, buf, bufsiz,
2300 "CORE", note_type, data, sizeof (data));
2301 }
2302
2303 case NT_PRSTATUS:
2304 {
2305 char data[268];
2306 va_list ap;
2307 long pid;
2308 int cursig;
2309 const void *greg;
2310
2311 va_start (ap, note_type);
2312 memset (data, 0, 72);
2313 pid = va_arg (ap, long);
2314 bfd_put_32 (abfd, pid, data + 24);
2315 cursig = va_arg (ap, int);
2316 bfd_put_16 (abfd, cursig, data + 12);
2317 greg = va_arg (ap, const void *);
2318 memcpy (data + 72, greg, 192);
2319 memset (data + 264, 0, 4);
2320 va_end (ap);
2321 return elfcore_write_note (abfd, buf, bufsiz,
2322 "CORE", note_type, data, sizeof (data));
2323 }
2324 }
2325}
2326
b9c361e0 2327static flagword
68ffbac6 2328ppc_elf_lookup_section_flags (char *flag_name)
b9c361e0
JL
2329{
2330
2331 if (!strcmp (flag_name, "SHF_PPC_VLE"))
2332 return SHF_PPC_VLE;
2333
2334 return 0;
2335}
2336
2337/* Add the VLE flag if required. */
2338
2339bfd_boolean
2340ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
2341{
2342 if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
2343 && (shdr->sh_flags & SHF_EXECINSTR) != 0)
2344 shdr->sh_flags |= SHF_PPC_VLE;
2345
2346 return TRUE;
2347}
2348
25dbc73a
AM
2349/* Return address for Ith PLT stub in section PLT, for relocation REL
2350 or (bfd_vma) -1 if it should not be included. */
deaaf2f3 2351
25dbc73a
AM
2352static bfd_vma
2353ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
2354 const asection *plt ATTRIBUTE_UNUSED,
2355 const arelent *rel)
2356{
2357 return rel->address;
2358}
deaaf2f3 2359
25dbc73a 2360/* Handle a PowerPC specific section when reading an object file. This
6dc132d9
L
2361 is called when bfd_section_from_shdr finds a section with an unknown
2362 type. */
deaaf2f3 2363
25dbc73a 2364static bfd_boolean
6dc132d9
L
2365ppc_elf_section_from_shdr (bfd *abfd,
2366 Elf_Internal_Shdr *hdr,
2367 const char *name,
2368 int shindex)
25dbc73a
AM
2369{
2370 asection *newsect;
2371 flagword flags;
d1c6de6f 2372
6dc132d9 2373 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
25dbc73a 2374 return FALSE;
deaaf2f3 2375
25dbc73a
AM
2376 newsect = hdr->bfd_section;
2377 flags = bfd_get_section_flags (abfd, newsect);
2378 if (hdr->sh_flags & SHF_EXCLUDE)
2379 flags |= SEC_EXCLUDE;
9abc968f 2380
25dbc73a
AM
2381 if (hdr->sh_type == SHT_ORDERED)
2382 flags |= SEC_SORT_ENTRIES;
d1c6de6f 2383
25dbc73a
AM
2384 bfd_set_section_flags (abfd, newsect, flags);
2385 return TRUE;
2386}
2387
2388/* Set up any other section flags and such that may be necessary. */
2389
2390static bfd_boolean
2391ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2392 Elf_Internal_Shdr *shdr,
2393 asection *asect)
2394{
25dbc73a
AM
2395 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2396 shdr->sh_type = SHT_ORDERED;
2397
2398 return TRUE;
2399}
2400
2401/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
2402 need to bump up the number of section headers. */
2403
2404static int
a6b96beb
AM
2405ppc_elf_additional_program_headers (bfd *abfd,
2406 struct bfd_link_info *info ATTRIBUTE_UNUSED)
25dbc73a
AM
2407{
2408 asection *s;
2409 int ret = 0;
d1c6de6f 2410
25dbc73a
AM
2411 s = bfd_get_section_by_name (abfd, ".sbss2");
2412 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2413 ++ret;
d1c6de6f 2414
25dbc73a
AM
2415 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2416 if (s != NULL && (s->flags & SEC_ALLOC) != 0)
2417 ++ret;
deaaf2f3 2418
25dbc73a
AM
2419 return ret;
2420}
deaaf2f3 2421
68ffbac6 2422/* Modify the segment map for VLE executables. */
b9c361e0
JL
2423
2424bfd_boolean
2425ppc_elf_modify_segment_map (bfd *abfd,
2426 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2427{
2428 struct elf_segment_map *m, *n;
2429 bfd_size_type amt;
2430 unsigned int j, k;
2431 bfd_boolean sect0_vle, sectj_vle;
2432
2433 /* At this point in the link, output sections have already been sorted by
2434 LMA and assigned to segments. All that is left to do is to ensure
2435 there is no mixing of VLE & non-VLE sections in a text segment.
2436 If we find that case, we split the segment.
2437 We maintain the original output section order. */
2438
12bd6957 2439 for (m = elf_seg_map (abfd); m != NULL; m = m->next)
b9c361e0
JL
2440 {
2441 if (m->count == 0)
2442 continue;
2443
94caa966 2444 sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
b9c361e0
JL
2445 for (j = 1; j < m->count; ++j)
2446 {
94caa966
AM
2447 sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
2448
2449 if (sectj_vle != sect0_vle)
b9c361e0
JL
2450 break;
2451 }
2452 if (j >= m->count)
2453 continue;
2454
b9c361e0
JL
2455 /* sections 0..j-1 stay in this (current) segment,
2456 the remainder are put in a new segment.
2457 The scan resumes with the new segment. */
2458
2459 /* Fix the new segment. */
2460 amt = sizeof (struct elf_segment_map);
2461 amt += (m->count - j - 1) * sizeof (asection *);
2462 n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
2463 if (n == NULL)
2464 return FALSE;
2465
2466 n->p_type = PT_LOAD;
2467 n->p_flags = PF_X | PF_R;
2468 if (sectj_vle)
2469 n->p_flags |= PF_PPC_VLE;
2470 n->count = m->count - j;
2471 for (k = 0; k < n->count; ++k)
2472 {
2473 n->sections[k] = m->sections[j+k];
2474 m->sections[j+k] = NULL;
2475 }
2476 n->next = m->next;
2477 m->next = n;
2478
2479 /* Fix the current segment */
2480 m->count = j;
2481 }
2482
2483 return TRUE;
2484}
2485
25dbc73a
AM
2486/* Add extra PPC sections -- Note, for now, make .sbss2 and
2487 .PPC.EMB.sbss0 a normal section, and not a bss section so
2488 that the linker doesn't crater when trying to make more than
2489 2 sections. */
e656e369 2490
b35d266b 2491static const struct bfd_elf_special_section ppc_elf_special_sections[] =
7f4d3958 2492{
0112cd26
NC
2493 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
2494 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2495 { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
2496 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2497 { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
2498 { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
2499 { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 },
2500 { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
2501 { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
2502 { NULL, 0, 0, 0, 0 }
7f4d3958
L
2503};
2504
551b43fd
AM
2505/* This is what we want for new plt/got. */
2506static struct bfd_elf_special_section ppc_alt_plt =
0112cd26 2507 { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC };
551b43fd
AM
2508
2509static const struct bfd_elf_special_section *
2510ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
7f4d3958 2511{
b35d266b 2512 const struct bfd_elf_special_section *ssect;
551b43fd
AM
2513
2514 /* See if this is one of the special sections. */
2515 if (sec->name == NULL)
2516 return NULL;
2517
2518 ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
2519 sec->use_rela_p);
2520 if (ssect != NULL)
2521 {
2522 if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
2523 ssect = &ppc_alt_plt;
2524 return ssect;
2525 }
2526
2527 return _bfd_elf_get_sec_type_attr (abfd, sec);
2528}
25dbc73a
AM
2529\f
2530/* Very simple linked list structure for recording apuinfo values. */
2531typedef struct apuinfo_list
2532{
2533 struct apuinfo_list *next;
2534 unsigned long value;
2535}
2536apuinfo_list;
e656e369 2537
25dbc73a 2538static apuinfo_list *head;
f2faa800 2539static bfd_boolean apuinfo_set;
deaaf2f3 2540
25dbc73a
AM
2541static void
2542apuinfo_list_init (void)
2543{
2544 head = NULL;
f2faa800 2545 apuinfo_set = FALSE;
25dbc73a 2546}
9abc968f 2547
25dbc73a
AM
2548static void
2549apuinfo_list_add (unsigned long value)
2550{
2551 apuinfo_list *entry = head;
deaaf2f3 2552
25dbc73a
AM
2553 while (entry != NULL)
2554 {
2555 if (entry->value == value)
2556 return;
2557 entry = entry->next;
2558 }
b4a38de6 2559
25dbc73a
AM
2560 entry = bfd_malloc (sizeof (* entry));
2561 if (entry == NULL)
2562 return;
e656e369 2563
25dbc73a
AM
2564 entry->value = value;
2565 entry->next = head;
2566 head = entry;
2567}
9abc968f 2568
25dbc73a
AM
2569static unsigned
2570apuinfo_list_length (void)
2571{
2572 apuinfo_list *entry;
2573 unsigned long count;
9abc968f 2574
25dbc73a
AM
2575 for (entry = head, count = 0;
2576 entry;
2577 entry = entry->next)
2578 ++ count;
e656e369 2579
25dbc73a
AM
2580 return count;
2581}
eea6121a 2582
25dbc73a
AM
2583static inline unsigned long
2584apuinfo_list_element (unsigned long number)
2585{
2586 apuinfo_list * entry;
e656e369 2587
25dbc73a
AM
2588 for (entry = head;
2589 entry && number --;
2590 entry = entry->next)
2591 ;
252b5132 2592
25dbc73a
AM
2593 return entry ? entry->value : 0;
2594}
2595
2596static void
2597apuinfo_list_finish (void)
2598{
2599 apuinfo_list *entry;
2600
2601 for (entry = head; entry;)
252b5132 2602 {
25dbc73a
AM
2603 apuinfo_list *next = entry->next;
2604 free (entry);
2605 entry = next;
2606 }
9abc968f 2607
25dbc73a
AM
2608 head = NULL;
2609}
9abc968f 2610
25dbc73a
AM
2611#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
2612#define APUINFO_LABEL "APUinfo"
9abc968f 2613
25dbc73a
AM
2614/* Scan the input BFDs and create a linked list of
2615 the APUinfo values that will need to be emitted. */
9abc968f 2616
25dbc73a
AM
2617static void
2618ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
2619{
2620 bfd *ibfd;
2621 asection *asec;
deddc40b
NS
2622 char *buffer = NULL;
2623 bfd_size_type largest_input_size = 0;
25dbc73a 2624 unsigned i;
25dbc73a
AM
2625 unsigned long length;
2626 const char *error_message = NULL;
9abc968f 2627
25dbc73a
AM
2628 if (link_info == NULL)
2629 return;
9abc968f 2630
25dbc73a 2631 apuinfo_list_init ();
252b5132 2632
25dbc73a
AM
2633 /* Read in the input sections contents. */
2634 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
252b5132 2635 {
25dbc73a 2636 unsigned long datum;
252b5132 2637
25dbc73a
AM
2638 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
2639 if (asec == NULL)
2640 continue;
252b5132 2641
deddc40b 2642 error_message = _("corrupt %s section in %B");
25dbc73a 2643 length = asec->size;
deddc40b
NS
2644 if (length < 20)
2645 goto fail;
2646
f2faa800 2647 apuinfo_set = TRUE;
deddc40b 2648 if (largest_input_size < asec->size)
25dbc73a 2649 {
deddc40b
NS
2650 if (buffer)
2651 free (buffer);
2652 largest_input_size = asec->size;
2653 buffer = bfd_malloc (largest_input_size);
2654 if (!buffer)
2655 return;
25dbc73a 2656 }
5b914448 2657
25dbc73a 2658 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
deddc40b 2659 || (bfd_bread (buffer, length, ibfd) != length))
25dbc73a
AM
2660 {
2661 error_message = _("unable to read in %s section from %B");
2662 goto fail;
2663 }
252b5132 2664
25dbc73a
AM
2665 /* Verify the contents of the header. Note - we have to
2666 extract the values this way in order to allow for a
2667 host whose endian-ness is different from the target. */
deddc40b 2668 datum = bfd_get_32 (ibfd, buffer);
25dbc73a
AM
2669 if (datum != sizeof APUINFO_LABEL)
2670 goto fail;
252b5132 2671
deddc40b 2672 datum = bfd_get_32 (ibfd, buffer + 8);
25dbc73a
AM
2673 if (datum != 0x2)
2674 goto fail;
252b5132 2675
deddc40b 2676 if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
25dbc73a 2677 goto fail;
252b5132 2678
25dbc73a 2679 /* Get the number of bytes used for apuinfo entries. */
deddc40b 2680 datum = bfd_get_32 (ibfd, buffer + 4);
25dbc73a
AM
2681 if (datum + 20 != length)
2682 goto fail;
2683
25dbc73a
AM
2684 /* Scan the apuinfo section, building a list of apuinfo numbers. */
2685 for (i = 0; i < datum; i += 4)
deddc40b 2686 apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
252b5132
RH
2687 }
2688
25dbc73a 2689 error_message = NULL;
252b5132 2690
f2faa800 2691 if (apuinfo_set)
deddc40b 2692 {
f2faa800
NS
2693 /* Compute the size of the output section. */
2694 unsigned num_entries = apuinfo_list_length ();
5b914448 2695
deddc40b
NS
2696 /* Set the output section size, if it exists. */
2697 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
f2faa800 2698
deddc40b
NS
2699 if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
2700 {
2701 ibfd = abfd;
2702 error_message = _("warning: unable to set size of %s section in %B");
2703 }
2704 }
25dbc73a
AM
2705
2706 fail:
deddc40b
NS
2707 if (buffer)
2708 free (buffer);
25dbc73a
AM
2709
2710 if (error_message)
2711 (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
2712}
252b5132 2713
25dbc73a
AM
2714/* Prevent the output section from accumulating the input sections'
2715 contents. We have already stored this in our linked list structure. */
252b5132 2716
25dbc73a
AM
2717static bfd_boolean
2718ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
c7b8f16e 2719 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
25dbc73a
AM
2720 asection *asec,
2721 bfd_byte *contents ATTRIBUTE_UNUSED)
2722{
f2faa800 2723 return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
252b5132
RH
2724}
2725
25dbc73a
AM
2726/* Finally we can generate the output section. */
2727
2728static void
2729ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
7619e7c7 2730{
25dbc73a
AM
2731 bfd_byte *buffer;
2732 asection *asec;
2733 unsigned i;
2734 unsigned num_entries;
2735 bfd_size_type length;
7619e7c7 2736
25dbc73a
AM
2737 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
2738 if (asec == NULL)
2739 return;
2740
f2faa800 2741 if (!apuinfo_set)
25dbc73a
AM
2742 return;
2743
2744 length = asec->size;
2745 if (length < 20)
2746 return;
2747
2748 buffer = bfd_malloc (length);
2749 if (buffer == NULL)
7619e7c7 2750 {
25dbc73a
AM
2751 (*_bfd_error_handler)
2752 (_("failed to allocate space for new APUinfo section."));
2753 return;
7619e7c7 2754 }
7619e7c7 2755
25dbc73a
AM
2756 /* Create the apuinfo header. */
2757 num_entries = apuinfo_list_length ();
2758 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
2759 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
2760 bfd_put_32 (abfd, 0x2, buffer + 8);
2761 strcpy ((char *) buffer + 12, APUINFO_LABEL);
feee612b 2762
25dbc73a
AM
2763 length = 20;
2764 for (i = 0; i < num_entries; i++)
feee612b 2765 {
25dbc73a
AM
2766 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
2767 length += 4;
feee612b 2768 }
feee612b 2769
25dbc73a
AM
2770 if (length != asec->size)
2771 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
252b5132 2772
25dbc73a
AM
2773 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
2774 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
252b5132 2775
25dbc73a
AM
2776 free (buffer);
2777
2778 apuinfo_list_finish ();
252b5132 2779}
25dbc73a 2780\f
7382d32a 2781static bfd_boolean
c6dd29ce 2782is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
7382d32a 2783{
c6dd29ce 2784 bfd_byte buf[GLINK_ENTRY_SIZE];
7382d32a 2785
c6dd29ce 2786 if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
7382d32a
AM
2787 return FALSE;
2788
c6dd29ce
AM
2789 return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
2790 && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
2791 && bfd_get_32 (abfd, buf + 8) == MTCTR_11
2792 && bfd_get_32 (abfd, buf + 12) == BCTR);
7382d32a
AM
2793}
2794
468392fb
AM
2795static bfd_boolean
2796section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2797{
2798 bfd_vma vma = *(bfd_vma *) ptr;
2799 return ((section->flags & SEC_ALLOC) != 0
2800 && section->vma <= vma
2801 && vma < section->vma + section->size);
2802}
2803
2804static long
2805ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
2806 long dynsymcount, asymbol **dynsyms,
2807 asymbol **ret)
2808{
2809 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2810 asection *plt, *relplt, *dynamic, *glink;
2811 bfd_vma glink_vma = 0;
2812 bfd_vma resolv_vma = 0;
2813 bfd_vma stub_vma;
2814 asymbol *s;
2815 arelent *p;
2816 long count, i;
2817 size_t size;
2818 char *names;
2819 bfd_byte buf[4];
2820
2821 *ret = NULL;
2822
2823 if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
2824 return 0;
2825
2826 if (dynsymcount <= 0)
2827 return 0;
2828
2829 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2830 if (relplt == NULL)
2831 return 0;
2832
2833 plt = bfd_get_section_by_name (abfd, ".plt");
2834 if (plt == NULL)
2835 return 0;
2836
2837 /* Call common code to handle old-style executable PLTs. */
2838 if (elf_section_flags (plt) & SHF_EXECINSTR)
2839 return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
2840 dynsymcount, dynsyms, ret);
2841
2842 /* If this object was prelinked, the prelinker stored the address
2843 of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */
2844 dynamic = bfd_get_section_by_name (abfd, ".dynamic");
2845 if (dynamic != NULL)
2846 {
2847 bfd_byte *dynbuf, *extdyn, *extdynend;
2848 size_t extdynsize;
2849 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
2850
2851 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
2852 return -1;
2853
2854 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
2855 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
2856
2857 extdyn = dynbuf;
2858 extdynend = extdyn + dynamic->size;
2859 for (; extdyn < extdynend; extdyn += extdynsize)
2860 {
2861 Elf_Internal_Dyn dyn;
2862 (*swap_dyn_in) (abfd, extdyn, &dyn);
2863
2864 if (dyn.d_tag == DT_NULL)
2865 break;
2866
2867 if (dyn.d_tag == DT_PPC_GOT)
2868 {
2869 unsigned int g_o_t = dyn.d_un.d_val;
2870 asection *got = bfd_get_section_by_name (abfd, ".got");
2871 if (got != NULL
2872 && bfd_get_section_contents (abfd, got, buf,
2873 g_o_t - got->vma + 4, 4))
2874 glink_vma = bfd_get_32 (abfd, buf);
2875 break;
2876 }
2877 }
2878 free (dynbuf);
2879 }
2880
2881 /* Otherwise we read the first plt entry. */
2882 if (glink_vma == 0)
2883 {
2884 if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
2885 glink_vma = bfd_get_32 (abfd, buf);
2886 }
2887
2888 if (glink_vma == 0)
2889 return 0;
2890
2891 /* The .glink section usually does not survive the final
2892 link; search for the section (usually .text) where the
2893 glink stubs now reside. */
2894 glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
2895 if (glink == NULL)
2896 return 0;
2897
2898 /* Determine glink PLT resolver by reading the relative branch
2899 from the first glink stub. */
2900 if (bfd_get_section_contents (abfd, glink, buf,
2901 glink_vma - glink->vma, 4))
2902 {
2903 unsigned int insn = bfd_get_32 (abfd, buf);
2904
2905 /* The first glink stub may either branch to the resolver ... */
2906 insn ^= B;
2907 if ((insn & ~0x3fffffc) == 0)
2908 resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
2909
2910 /* ... or fall through a bunch of NOPs. */
2911 else if ((insn ^ B ^ NOP) == 0)
2912 for (i = 4;
2913 bfd_get_section_contents (abfd, glink, buf,
2914 glink_vma - glink->vma + i, 4);
2915 i += 4)
2916 if (bfd_get_32 (abfd, buf) != NOP)
2917 {
2918 resolv_vma = glink_vma + i;
2919 break;
2920 }
2921 }
2922
7382d32a
AM
2923 count = relplt->size / sizeof (Elf32_External_Rela);
2924 stub_vma = glink_vma - (bfd_vma) count * 16;
2925 /* If the stubs are those for -shared/-pie then we might have
2926 multiple stubs for each plt entry. If that is the case then
2927 there is no way to associate stubs with their plt entries short
2928 of figuring out the GOT pointer value used in the stub. */
c6dd29ce
AM
2929 if (!is_nonpic_glink_stub (abfd, glink,
2930 glink_vma - GLINK_ENTRY_SIZE - glink->vma))
7382d32a
AM
2931 return 0;
2932
468392fb
AM
2933 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2934 if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
2935 return -1;
2936
468392fb
AM
2937 size = count * sizeof (asymbol);
2938 p = relplt->relocation;
2939 for (i = 0; i < count; i++, p++)
e054468f
AM
2940 {
2941 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
2942 if (p->addend != 0)
2943 size += sizeof ("+0x") - 1 + 8;
2944 }
468392fb
AM
2945
2946 size += sizeof (asymbol) + sizeof ("__glink");
2947
2948 if (resolv_vma)
2949 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
2950
2951 s = *ret = bfd_malloc (size);
2952 if (s == NULL)
2953 return -1;
2954
2955 names = (char *) (s + count + 1 + (resolv_vma != 0));
2956 p = relplt->relocation;
2957 for (i = 0; i < count; i++, p++)
2958 {
2959 size_t len;
2960
2961 *s = **p->sym_ptr_ptr;
2962 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
2963 we are defining a symbol, ensure one of them is set. */
2964 if ((s->flags & BSF_LOCAL) == 0)
2965 s->flags |= BSF_GLOBAL;
6ba2a415 2966 s->flags |= BSF_SYNTHETIC;
468392fb
AM
2967 s->section = glink;
2968 s->value = stub_vma - glink->vma;
2969 s->name = names;
2970 s->udata.p = NULL;
2971 len = strlen ((*p->sym_ptr_ptr)->name);
2972 memcpy (names, (*p->sym_ptr_ptr)->name, len);
2973 names += len;
e054468f
AM
2974 if (p->addend != 0)
2975 {
2976 memcpy (names, "+0x", sizeof ("+0x") - 1);
2977 names += sizeof ("+0x") - 1;
2978 bfd_sprintf_vma (abfd, names, p->addend);
2979 names += strlen (names);
2980 }
468392fb
AM
2981 memcpy (names, "@plt", sizeof ("@plt"));
2982 names += sizeof ("@plt");
2983 ++s;
2984 stub_vma += 16;
2985 }
2986
2987 /* Add a symbol at the start of the glink branch table. */
86a4952b 2988 memset (s, 0, sizeof *s);
468392fb 2989 s->the_bfd = abfd;
6ba2a415 2990 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
2991 s->section = glink;
2992 s->value = glink_vma - glink->vma;
2993 s->name = names;
2994 memcpy (names, "__glink", sizeof ("__glink"));
2995 names += sizeof ("__glink");
2996 s++;
2997 count++;
2998
2999 if (resolv_vma)
3000 {
3001 /* Add a symbol for the glink PLT resolver. */
86a4952b 3002 memset (s, 0, sizeof *s);
468392fb 3003 s->the_bfd = abfd;
6ba2a415 3004 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3005 s->section = glink;
3006 s->value = resolv_vma - glink->vma;
3007 s->name = names;
3008 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3009 names += sizeof ("__glink_PLTresolve");
3010 s++;
3011 count++;
3012 }
3013
3014 return count;
3015}
3016\f
25dbc73a
AM
3017/* The following functions are specific to the ELF linker, while
3018 functions above are used generally. They appear in this file more
3019 or less in the order in which they are called. eg.
3020 ppc_elf_check_relocs is called early in the link process,
3021 ppc_elf_finish_dynamic_sections is one of the last functions
3022 called. */
252b5132 3023
a6aa5195 3024/* Track PLT entries needed for a given symbol. We might need more
a877a2b6 3025 than one glink entry per symbol when generating a pic binary. */
a6aa5195
AM
3026struct plt_entry
3027{
3028 struct plt_entry *next;
3029
3030 /* -fPIC uses multiple GOT sections, one per file, called ".got2".
3031 This field stores the offset into .got2 used to initialise the
a877a2b6
AM
3032 GOT pointer reg. It will always be at least 32768. (Current
3033 gcc always uses an offset of 32768, but ld -r will pack .got2
3034 sections together resulting in larger offsets). */
a6aa5195
AM
3035 bfd_vma addend;
3036
3037 /* The .got2 section. */
3038 asection *sec;
3039
3040 /* PLT refcount or offset. */
3041 union
3042 {
3043 bfd_signed_vma refcount;
3044 bfd_vma offset;
3045 } plt;
3046
3047 /* .glink stub offset. */
3048 bfd_vma glink_offset;
3049};
3050
1d483afe 3051/* Of those relocs that might be copied as dynamic relocs, this function
25dbc73a
AM
3052 selects those that must be copied when linking a shared library,
3053 even when the symbol is local. */
252b5132 3054
1d483afe
AM
3055static int
3056must_be_dyn_reloc (struct bfd_link_info *info,
3057 enum elf_ppc_reloc_type r_type)
3058{
3059 switch (r_type)
3060 {
3061 default:
3062 return 1;
3063
3064 case R_PPC_REL24:
3065 case R_PPC_REL14:
3066 case R_PPC_REL14_BRTAKEN:
3067 case R_PPC_REL14_BRNTAKEN:
3068 case R_PPC_REL32:
3069 return 0;
3070
3071 case R_PPC_TPREL32:
3072 case R_PPC_TPREL16:
3073 case R_PPC_TPREL16_LO:
3074 case R_PPC_TPREL16_HI:
3075 case R_PPC_TPREL16_HA:
3076 return !info->executable;
3077 }
3078}
252b5132 3079
25dbc73a
AM
3080/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3081 copying dynamic variables from a shared lib into an app's dynbss
3082 section, and instead use a dynamic relocation to point into the
3083 shared lib. */
3084#define ELIMINATE_COPY_RELOCS 1
252b5132 3085
25dbc73a 3086/* PPC ELF linker hash entry. */
252b5132 3087
25dbc73a
AM
3088struct ppc_elf_link_hash_entry
3089{
3090 struct elf_link_hash_entry elf;
252b5132 3091
25dbc73a
AM
3092 /* If this symbol is used in the linker created sections, the processor
3093 specific backend uses this field to map the field into the offset
3094 from the beginning of the section. */
3095 elf_linker_section_pointers_t *linker_section_pointer;
252b5132 3096
25dbc73a 3097 /* Track dynamic relocs copied for this symbol. */
6061a67d 3098 struct elf_dyn_relocs *dyn_relocs;
252b5132 3099
25dbc73a
AM
3100 /* Contexts in which symbol is used in the GOT (or TOC).
3101 TLS_GD .. TLS_TLS bits are or'd into the mask as the
3102 corresponding relocs are encountered during check_relocs.
3103 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3104 indicate the corresponding GOT entry type is not needed. */
3105#define TLS_GD 1 /* GD reloc. */
3106#define TLS_LD 2 /* LD reloc. */
3107#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3108#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3109#define TLS_TLS 16 /* Any TLS reloc. */
3110#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
e054468f 3111#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */
25dbc73a 3112 char tls_mask;
4dc4a9a5
DJ
3113
3114 /* Nonzero if we have seen a small data relocation referring to this
3115 symbol. */
3116 unsigned char has_sda_refs;
25dbc73a 3117};
252b5132 3118
25dbc73a
AM
3119#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
3120
3121/* PPC ELF linker hash table. */
3122
3123struct ppc_elf_link_hash_table
3124{
3125 struct elf_link_hash_table elf;
3126
3127 /* Short-cuts to get to dynamic linker sections. */
3128 asection *got;
3129 asection *relgot;
d7128ce4 3130 asection *glink;
25dbc73a
AM
3131 asection *plt;
3132 asection *relplt;
e054468f
AM
3133 asection *iplt;
3134 asection *reliplt;
25dbc73a
AM
3135 asection *dynbss;
3136 asection *relbss;
3137 asection *dynsbss;
3138 asection *relsbss;
c9a2f333 3139 elf_linker_section_t sdata[2];
25dbc73a 3140 asection *sbss;
6177242a 3141 asection *glink_eh_frame;
25dbc73a 3142
016687f8
AM
3143 /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */
3144 asection *srelplt2;
3145
3146 /* The .got.plt section (VxWorks only)*/
3147 asection *sgotplt;
3148
1d483afe 3149 /* Shortcut to __tls_get_addr. */
25dbc73a 3150 struct elf_link_hash_entry *tls_get_addr;
252b5132 3151
016687f8
AM
3152 /* The bfd that forced an old-style PLT. */
3153 bfd *old_bfd;
5b914448 3154
25dbc73a
AM
3155 /* TLS local dynamic got entry handling. */
3156 union {
3157 bfd_signed_vma refcount;
3158 bfd_vma offset;
3159 } tlsld_got;
252b5132 3160
c6dd29ce 3161 /* Offset of branch table to PltResolve function in glink. */
d7128ce4
AM
3162 bfd_vma glink_pltresolve;
3163
3b36f7e6
AM
3164 /* Size of reserved GOT entries. */
3165 unsigned int got_header_size;
3166 /* Non-zero if allocating the header left a gap. */
3167 unsigned int got_gap;
3168
4a3dc543
RS
3169 /* The type of PLT we have chosen to use. */
3170 enum ppc_elf_plt_type plt_type;
3171
0ba07910
AM
3172 /* Set if we should emit symbols for stubs. */
3173 unsigned int emit_stub_syms:1;
3174
a7f2871e
AM
3175 /* Set if __tls_get_addr optimization should not be done. */
3176 unsigned int no_tls_get_addr_opt:1;
3177
9d8504b1 3178 /* True if the target system is VxWorks. */
016687f8 3179 unsigned int is_vxworks:1;
9d8504b1
PB
3180
3181 /* The size of PLT entries. */
3182 int plt_entry_size;
3183 /* The distance between adjacent PLT slots. */
3184 int plt_slot_size;
3185 /* The size of the first PLT entry. */
3186 int plt_initial_entry_size;
016687f8 3187
87d72d41
AM
3188 /* Small local sym cache. */
3189 struct sym_cache sym_cache;
25dbc73a 3190};
252b5132 3191
94caa966
AM
3192/* Rename some of the generic section flags to better document how they
3193 are used for ppc32. The flags are only valid for ppc32 elf objects. */
3194
3195/* Nonzero if this section has TLS related relocations. */
3196#define has_tls_reloc sec_flg0
3197
3198/* Nonzero if this section has a call to __tls_get_addr. */
3199#define has_tls_get_addr_call sec_flg1
3200
25dbc73a 3201/* Get the PPC ELF linker hash table from a link_info structure. */
252b5132 3202
25dbc73a 3203#define ppc_elf_hash_table(p) \
4dfe6ac6
NC
3204 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3205 == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
252b5132 3206
25dbc73a 3207/* Create an entry in a PPC ELF linker hash table. */
252b5132 3208
25dbc73a
AM
3209static struct bfd_hash_entry *
3210ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
3211 struct bfd_hash_table *table,
3212 const char *string)
252b5132 3213{
25dbc73a
AM
3214 /* Allocate the structure if it has not already been allocated by a
3215 subclass. */
3216 if (entry == NULL)
3217 {
3218 entry = bfd_hash_allocate (table,
3219 sizeof (struct ppc_elf_link_hash_entry));
3220 if (entry == NULL)
3221 return entry;
3222 }
252b5132 3223
25dbc73a
AM
3224 /* Call the allocation method of the superclass. */
3225 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3226 if (entry != NULL)
3227 {
3228 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
3229 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
3230 ppc_elf_hash_entry (entry)->tls_mask = 0;
5240d94d 3231 ppc_elf_hash_entry (entry)->has_sda_refs = 0;
25dbc73a 3232 }
252b5132 3233
25dbc73a 3234 return entry;
252b5132 3235}
3dab13f6 3236
25dbc73a 3237/* Create a PPC ELF linker hash table. */
3dab13f6 3238
25dbc73a
AM
3239static struct bfd_link_hash_table *
3240ppc_elf_link_hash_table_create (bfd *abfd)
3dab13f6 3241{
25dbc73a 3242 struct ppc_elf_link_hash_table *ret;
3dab13f6 3243
25dbc73a
AM
3244 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
3245 if (ret == NULL)
3246 return NULL;
3dab13f6 3247
66eb6687
AM
3248 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
3249 ppc_elf_link_hash_newfunc,
4dfe6ac6
NC
3250 sizeof (struct ppc_elf_link_hash_entry),
3251 PPC32_ELF_DATA))
3dab13f6 3252 {
25dbc73a
AM
3253 free (ret);
3254 return NULL;
3255 }
58111eb7 3256
a6aa5195
AM
3257 ret->elf.init_plt_refcount.refcount = 0;
3258 ret->elf.init_plt_refcount.glist = NULL;
3259 ret->elf.init_plt_offset.offset = 0;
3260 ret->elf.init_plt_offset.glist = NULL;
3261
c9a2f333
AM
3262 ret->sdata[0].name = ".sdata";
3263 ret->sdata[0].sym_name = "_SDA_BASE_";
3264 ret->sdata[0].bss_name = ".sbss";
3265
3266 ret->sdata[1].name = ".sdata2";
3267 ret->sdata[1].sym_name = "_SDA2_BASE_";
3268 ret->sdata[1].bss_name = ".sbss2";
3269
9d8504b1
PB
3270 ret->plt_entry_size = 12;
3271 ret->plt_slot_size = 8;
3272 ret->plt_initial_entry_size = 72;
9d8504b1 3273
25dbc73a
AM
3274 return &ret->elf.root;
3275}
3dab13f6 3276
9d8504b1 3277/* Create .got and the related sections. */
3dab13f6 3278
25dbc73a
AM
3279static bfd_boolean
3280ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
3281{
3282 struct ppc_elf_link_hash_table *htab;
3283 asection *s;
3284 flagword flags;
3dab13f6 3285
25dbc73a
AM
3286 if (!_bfd_elf_create_got_section (abfd, info))
3287 return FALSE;
3dab13f6 3288
25dbc73a 3289 htab = ppc_elf_hash_table (info);
3d4d4302 3290 htab->got = s = bfd_get_linker_section (abfd, ".got");
25dbc73a
AM
3291 if (s == NULL)
3292 abort ();
3dab13f6 3293
9d8504b1
PB
3294 if (htab->is_vxworks)
3295 {
3d4d4302 3296 htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
9d8504b1
PB
3297 if (!htab->sgotplt)
3298 abort ();
3299 }
3300 else
3301 {
3302 /* The powerpc .got has a blrl instruction in it. Mark it
3303 executable. */
3304 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
3305 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3306 if (!bfd_set_section_flags (abfd, s, flags))
3307 return FALSE;
3308 }
3dab13f6 3309
3d4d4302 3310 htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
64e77c6d
L
3311 if (!htab->relgot)
3312 abort ();
3dab13f6 3313
25dbc73a
AM
3314 return TRUE;
3315}
3dab13f6 3316
e054468f
AM
3317static bfd_boolean
3318ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
3319{
3320 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3321 asection *s;
3322 flagword flags;
3323
3324 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
3325 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3326 s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
3327 htab->glink = s;
3328 if (s == NULL
3329 || !bfd_set_section_alignment (abfd, s, 4))
3330 return FALSE;
3331
6177242a
AM
3332 if (!info->no_ld_generated_unwind_info)
3333 {
3334 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3335 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3336 s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
3337 htab->glink_eh_frame = s;
3338 if (s == NULL
3339 || !bfd_set_section_alignment (abfd, s, 2))
3340 return FALSE;
3341 }
3342
e054468f
AM
3343 flags = SEC_ALLOC | SEC_LINKER_CREATED;
3344 s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
3345 htab->iplt = s;
3346 if (s == NULL
3347 || !bfd_set_section_alignment (abfd, s, 4))
3348 return FALSE;
3349
3350 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3351 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3352 s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
e054468f
AM
3353 htab->reliplt = s;
3354 if (s == NULL
3355 || ! bfd_set_section_alignment (abfd, s, 2))
3356 return FALSE;
3357 return TRUE;
3358}
3359
25dbc73a
AM
3360/* We have to create .dynsbss and .rela.sbss here so that they get mapped
3361 to output sections (just like _bfd_elf_create_dynamic_sections has
3362 to create .dynbss and .rela.bss). */
3dab13f6 3363
25dbc73a
AM
3364static bfd_boolean
3365ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3366{
3367 struct ppc_elf_link_hash_table *htab;
3368 asection *s;
3369 flagword flags;
3dab13f6 3370
25dbc73a 3371 htab = ppc_elf_hash_table (info);
3dab13f6 3372
25dbc73a
AM
3373 if (htab->got == NULL
3374 && !ppc_elf_create_got (abfd, info))
3dab13f6
AM
3375 return FALSE;
3376
25dbc73a
AM
3377 if (!_bfd_elf_create_dynamic_sections (abfd, info))
3378 return FALSE;
3dab13f6 3379
e054468f
AM
3380 if (htab->glink == NULL
3381 && !ppc_elf_create_glink (abfd, info))
d7128ce4 3382 return FALSE;
3dab13f6 3383
3d4d4302 3384 htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
14b2f831
AM
3385 s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
3386 SEC_ALLOC | SEC_LINKER_CREATED);
3b36f7e6 3387 htab->dynsbss = s;
3496cb2a 3388 if (s == NULL)
25dbc73a 3389 return FALSE;
3dab13f6 3390
25dbc73a
AM
3391 if (! info->shared)
3392 {
3d4d4302 3393 htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
e054468f
AM
3394 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
3395 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
14b2f831 3396 s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
3b36f7e6 3397 htab->relsbss = s;
25dbc73a 3398 if (s == NULL
25dbc73a
AM
3399 || ! bfd_set_section_alignment (abfd, s, 2))
3400 return FALSE;
3401 }
3dab13f6 3402
711de32c
RS
3403 if (htab->is_vxworks
3404 && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
3405 return FALSE;
9d8504b1 3406
3d4d4302
AM
3407 htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
3408 htab->plt = s = bfd_get_linker_section (abfd, ".plt");
25dbc73a
AM
3409 if (s == NULL)
3410 abort ();
3dab13f6 3411
3b36f7e6 3412 flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
4a3dc543
RS
3413 if (htab->plt_type == PLT_VXWORKS)
3414 /* The VxWorks PLT is a loaded section with contents. */
3415 flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
25dbc73a
AM
3416 return bfd_set_section_flags (abfd, s, flags);
3417}
3dab13f6 3418
25dbc73a 3419/* Copy the extra info we tack onto an elf_link_hash_entry. */
58111eb7 3420
25dbc73a 3421static void
fcfa13d2 3422ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
25dbc73a
AM
3423 struct elf_link_hash_entry *dir,
3424 struct elf_link_hash_entry *ind)
3425{
3426 struct ppc_elf_link_hash_entry *edir, *eind;
3dab13f6 3427
25dbc73a
AM
3428 edir = (struct ppc_elf_link_hash_entry *) dir;
3429 eind = (struct ppc_elf_link_hash_entry *) ind;
3dab13f6 3430
c79d6685
AM
3431 edir->tls_mask |= eind->tls_mask;
3432 edir->has_sda_refs |= eind->has_sda_refs;
3433
3434 /* If called to transfer flags for a weakdef during processing
3435 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
3436 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3437 if (!(ELIMINATE_COPY_RELOCS
3438 && eind->elf.root.type != bfd_link_hash_indirect
3439 && edir->elf.dynamic_adjusted))
3440 edir->elf.non_got_ref |= eind->elf.non_got_ref;
3441
3442 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3443 edir->elf.ref_regular |= eind->elf.ref_regular;
3444 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3445 edir->elf.needs_plt |= eind->elf.needs_plt;
3446 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
3447
25dbc73a
AM
3448 if (eind->dyn_relocs != NULL)
3449 {
3450 if (edir->dyn_relocs != NULL)
3dab13f6 3451 {
6061a67d
AM
3452 struct elf_dyn_relocs **pp;
3453 struct elf_dyn_relocs *p;
3dab13f6 3454
fcfa13d2 3455 /* Add reloc counts against the indirect sym to the direct sym
25dbc73a
AM
3456 list. Merge any entries against the same section. */
3457 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3dab13f6 3458 {
6061a67d 3459 struct elf_dyn_relocs *q;
25dbc73a
AM
3460
3461 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3462 if (q->sec == p->sec)
3463 {
3464 q->pc_count += p->pc_count;
3465 q->count += p->count;
3466 *pp = p->next;
3467 break;
3468 }
3469 if (q == NULL)
3470 pp = &p->next;
3dab13f6 3471 }
25dbc73a 3472 *pp = edir->dyn_relocs;
3dab13f6 3473 }
25dbc73a
AM
3474
3475 edir->dyn_relocs = eind->dyn_relocs;
3476 eind->dyn_relocs = NULL;
3dab13f6 3477 }
3dab13f6 3478
68ba6d40
AM
3479 /* If we were called to copy over info for a weak sym, that's all.
3480 You might think dyn_relocs need not be copied over; After all,
3481 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 3482 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM
3483 code in ppc_elf_adjust_dynamic_symbol needs to check for
3484 dyn_relocs in read-only sections, and it does so on what is the
3485 DIR sym here. */
3486 if (eind->elf.root.type != bfd_link_hash_indirect)
3487 return;
3488
a6aa5195
AM
3489 /* Copy over the GOT refcount entries that we may have already seen to
3490 the symbol which just became indirect. */
fcfa13d2
AM
3491 edir->elf.got.refcount += eind->elf.got.refcount;
3492 eind->elf.got.refcount = 0;
a6aa5195
AM
3493
3494 /* And plt entries. */
3495 if (eind->elf.plt.plist != NULL)
3496 {
3497 if (edir->elf.plt.plist != NULL)
3498 {
3499 struct plt_entry **entp;
3500 struct plt_entry *ent;
3501
3502 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3503 {
3504 struct plt_entry *dent;
3505
3506 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3507 if (dent->sec == ent->sec && dent->addend == ent->addend)
3508 {
3509 dent->plt.refcount += ent->plt.refcount;
3510 *entp = ent->next;
3511 break;
3512 }
3513 if (dent == NULL)
3514 entp = &ent->next;
3515 }
3516 *entp = edir->elf.plt.plist;
3517 }
3518
3519 edir->elf.plt.plist = eind->elf.plt.plist;
3520 eind->elf.plt.plist = NULL;
3521 }
3522
fcfa13d2 3523 if (eind->elf.dynindx != -1)
25dbc73a 3524 {
fcfa13d2
AM
3525 if (edir->elf.dynindx != -1)
3526 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3527 edir->elf.dynstr_index);
a6aa5195
AM
3528 edir->elf.dynindx = eind->elf.dynindx;
3529 edir->elf.dynstr_index = eind->elf.dynstr_index;
3530 eind->elf.dynindx = -1;
3531 eind->elf.dynstr_index = 0;
25dbc73a 3532 }
25dbc73a 3533}
3dab13f6 3534
25dbc73a
AM
3535/* Hook called by the linker routine which adds symbols from an object
3536 file. We use it to put .comm items in .sbss, and not .bss. */
58111eb7 3537
25dbc73a
AM
3538static bfd_boolean
3539ppc_elf_add_symbol_hook (bfd *abfd,
3540 struct bfd_link_info *info,
3541 Elf_Internal_Sym *sym,
3542 const char **namep ATTRIBUTE_UNUSED,
3543 flagword *flagsp ATTRIBUTE_UNUSED,
3544 asection **secp,
3545 bfd_vma *valp)
3546{
3547 if (sym->st_shndx == SHN_COMMON
3548 && !info->relocatable
0c8d6e5c
AM
3549 && is_ppc_elf (info->output_bfd)
3550 && sym->st_size <= elf_gp_size (abfd))
25dbc73a
AM
3551 {
3552 /* Common symbols less than or equal to -G nn bytes are automatically
3553 put into .sbss. */
3554 struct ppc_elf_link_hash_table *htab;
3dab13f6 3555
25dbc73a
AM
3556 htab = ppc_elf_hash_table (info);
3557 if (htab->sbss == NULL)
3558 {
644285ef 3559 flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
3dab13f6 3560
644285ef
AM
3561 if (!htab->elf.dynobj)
3562 htab->elf.dynobj = abfd;
3563
3496cb2a
L
3564 htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3565 ".sbss",
3566 flags);
3567 if (htab->sbss == NULL)
25dbc73a 3568 return FALSE;
3dab13f6 3569 }
3dab13f6 3570
25dbc73a
AM
3571 *secp = htab->sbss;
3572 *valp = sym->st_size;
3573 }
3dab13f6 3574
c16153ae 3575 if ((abfd->flags & DYNAMIC) == 0
f64b2e8d
NC
3576 && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
3577 || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
3578 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
e054468f 3579
25dbc73a 3580 return TRUE;
3dab13f6
AM
3581}
3582\f
046183de 3583static bfd_boolean
bd6c6e2b 3584create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
046183de 3585{
bd6c6e2b
AM
3586 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
3587
046183de
AM
3588 lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
3589 TRUE, FALSE, TRUE);
3590 if (lsect->sym == NULL)
3591 return FALSE;
3592 if (lsect->sym->root.type == bfd_link_hash_new)
3593 lsect->sym->non_elf = 0;
3594 lsect->sym->ref_regular = 1;
bd6c6e2b 3595 _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
046183de
AM
3596 return TRUE;
3597}
3598
c9a2f333 3599/* Create a special linker section. */
25dbc73a 3600
c9a2f333 3601static bfd_boolean
55fd94b0
AM
3602ppc_elf_create_linker_section (bfd *abfd,
3603 struct bfd_link_info *info,
c9a2f333
AM
3604 flagword flags,
3605 elf_linker_section_t *lsect)
252b5132 3606{
58111eb7 3607 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
c9a2f333 3608 asection *s;
58111eb7 3609
c9a2f333
AM
3610 flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3611 | SEC_LINKER_CREATED);
58111eb7
AM
3612
3613 /* Record the first bfd that needs the special sections. */
3614 if (!htab->elf.dynobj)
3615 htab->elf.dynobj = abfd;
3616
3496cb2a
L
3617 s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
3618 lsect->name,
3619 flags);
76750a2f 3620 if (s == NULL
76750a2f 3621 || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
c9a2f333 3622 return FALSE;
76750a2f 3623 lsect->section = s;
58111eb7 3624
bd6c6e2b 3625 return create_sdata_sym (info, lsect);
252b5132 3626}
252b5132 3627
25dbc73a
AM
3628/* Find a linker generated pointer with a given addend and type. */
3629
3630static elf_linker_section_pointers_t *
3631elf_find_pointer_linker_section
3632 (elf_linker_section_pointers_t *linker_pointers,
3633 bfd_vma addend,
3634 elf_linker_section_t *lsect)
252b5132 3635{
25dbc73a
AM
3636 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
3637 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
3638 return linker_pointers;
252b5132 3639
25dbc73a
AM
3640 return NULL;
3641}
3642
3643/* Allocate a pointer to live in a linker created section. */
3644
3645static bfd_boolean
3646elf_create_pointer_linker_section (bfd *abfd,
25dbc73a
AM
3647 elf_linker_section_t *lsect,
3648 struct elf_link_hash_entry *h,
3649 const Elf_Internal_Rela *rel)
3650{
3651 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
3652 elf_linker_section_pointers_t *linker_section_ptr;
3653 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
3654 bfd_size_type amt;
3655
3656 BFD_ASSERT (lsect != NULL);
3657
3658 /* Is this a global symbol? */
3659 if (h != NULL)
3660 {
3661 struct ppc_elf_link_hash_entry *eh;
3662
3663 /* Has this symbol already been allocated? If so, our work is done. */
3664 eh = (struct ppc_elf_link_hash_entry *) h;
3665 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
3666 rel->r_addend,
3667 lsect))
3668 return TRUE;
3669
3670 ptr_linker_section_ptr = &eh->linker_section_pointer;
25dbc73a
AM
3671 }
3672 else
3673 {
0c8d6e5c 3674 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3675
25dbc73a
AM
3676 /* Allocation of a pointer to a local symbol. */
3677 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
3678
3679 /* Allocate a table to hold the local symbols if first time. */
3680 if (!ptr)
3681 {
0ffa91dd 3682 unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
25dbc73a
AM
3683
3684 amt = num_symbols;
3685 amt *= sizeof (elf_linker_section_pointers_t *);
3686 ptr = bfd_zalloc (abfd, amt);
3687
3688 if (!ptr)
3689 return FALSE;
3690
3691 elf_local_ptr_offsets (abfd) = ptr;
3692 }
3693
3694 /* Has this symbol already been allocated? If so, our work is done. */
3695 if (elf_find_pointer_linker_section (ptr[r_symndx],
3696 rel->r_addend,
3697 lsect))
3698 return TRUE;
252b5132 3699
25dbc73a 3700 ptr_linker_section_ptr = &ptr[r_symndx];
25dbc73a 3701 }
41fcb14e 3702
25dbc73a
AM
3703 /* Allocate space for a pointer in the linker section, and allocate
3704 a new pointer record from internal memory. */
3705 BFD_ASSERT (ptr_linker_section_ptr != NULL);
3706 amt = sizeof (elf_linker_section_pointers_t);
3707 linker_section_ptr = bfd_alloc (abfd, amt);
41fcb14e 3708
25dbc73a 3709 if (!linker_section_ptr)
7619e7c7 3710 return FALSE;
41fcb14e 3711
25dbc73a
AM
3712 linker_section_ptr->next = *ptr_linker_section_ptr;
3713 linker_section_ptr->addend = rel->r_addend;
3714 linker_section_ptr->lsect = lsect;
25dbc73a 3715 *ptr_linker_section_ptr = linker_section_ptr;
41fcb14e 3716
25dbc73a
AM
3717 linker_section_ptr->offset = lsect->section->size;
3718 lsect->section->size += 4;
7619e7c7 3719
25dbc73a
AM
3720#ifdef DEBUG
3721 fprintf (stderr,
3722 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
3723 lsect->name, (long) linker_section_ptr->offset,
3724 (long) lsect->section->size);
3725#endif
7619e7c7
AM
3726
3727 return TRUE;
41fcb14e
AM
3728}
3729
e054468f 3730static struct plt_entry **
25dbc73a
AM
3731update_local_sym_info (bfd *abfd,
3732 Elf_Internal_Shdr *symtab_hdr,
3733 unsigned long r_symndx,
3734 int tls_type)
252b5132 3735{
25dbc73a 3736 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
e054468f 3737 struct plt_entry **local_plt;
25dbc73a 3738 char *local_got_tls_masks;
252b5132 3739
25dbc73a 3740 if (local_got_refcounts == NULL)
252b5132 3741 {
25dbc73a
AM
3742 bfd_size_type size = symtab_hdr->sh_info;
3743
e054468f
AM
3744 size *= (sizeof (*local_got_refcounts)
3745 + sizeof (*local_plt)
3746 + sizeof (*local_got_tls_masks));
25dbc73a
AM
3747 local_got_refcounts = bfd_zalloc (abfd, size);
3748 if (local_got_refcounts == NULL)
e054468f 3749 return NULL;
25dbc73a 3750 elf_local_got_refcounts (abfd) = local_got_refcounts;
252b5132 3751 }
41fcb14e 3752
e054468f
AM
3753 local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
3754 local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
25dbc73a 3755 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
3756 if (tls_type != PLT_IFUNC)
3757 local_got_refcounts[r_symndx] += 1;
3758 return local_plt + r_symndx;
25dbc73a 3759}
41fcb14e 3760
a6aa5195 3761static bfd_boolean
3ec01793 3762update_plt_info (bfd *abfd, struct plt_entry **plist,
a6aa5195
AM
3763 asection *sec, bfd_vma addend)
3764{
3765 struct plt_entry *ent;
3766
32af9f6e
AM
3767 if (addend < 32768)
3768 sec = NULL;
3ec01793 3769 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3770 if (ent->sec == sec && ent->addend == addend)
3771 break;
3772 if (ent == NULL)
3773 {
3774 bfd_size_type amt = sizeof (*ent);
3775 ent = bfd_alloc (abfd, amt);
3776 if (ent == NULL)
3777 return FALSE;
3ec01793 3778 ent->next = *plist;
a6aa5195
AM
3779 ent->sec = sec;
3780 ent->addend = addend;
3781 ent->plt.refcount = 0;
3ec01793 3782 *plist = ent;
a6aa5195
AM
3783 }
3784 ent->plt.refcount += 1;
3785 return TRUE;
3786}
3787
3788static struct plt_entry *
3ec01793 3789find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
a6aa5195
AM
3790{
3791 struct plt_entry *ent;
3792
3793 if (addend < 32768)
3794 sec = NULL;
3ec01793 3795 for (ent = *plist; ent != NULL; ent = ent->next)
a6aa5195
AM
3796 if (ent->sec == sec && ent->addend == addend)
3797 break;
3798 return ent;
3799}
3800
e054468f
AM
3801static bfd_boolean
3802is_branch_reloc (enum elf_ppc_reloc_type r_type)
3803{
3804 return (r_type == R_PPC_PLTREL24
3805 || r_type == R_PPC_LOCAL24PC
3806 || r_type == R_PPC_REL24
3807 || r_type == R_PPC_REL14
3808 || r_type == R_PPC_REL14_BRTAKEN
3809 || r_type == R_PPC_REL14_BRNTAKEN
3810 || r_type == R_PPC_ADDR24
3811 || r_type == R_PPC_ADDR14
3812 || r_type == R_PPC_ADDR14_BRTAKEN
3813 || r_type == R_PPC_ADDR14_BRNTAKEN);
3814}
3815
25dbc73a
AM
3816static void
3817bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3818{
3819 (*_bfd_error_handler)
3820 (_("%B: relocation %s cannot be used when making a shared object"),
3821 abfd,
3822 ppc_elf_howto_table[r_type]->name);
3823 bfd_set_error (bfd_error_bad_value);
252b5132
RH
3824}
3825
25dbc73a
AM
3826/* Look through the relocs for a section during the first phase, and
3827 allocate space in the global offset table or procedure linkage
3828 table. */
252b5132 3829
b34976b6 3830static bfd_boolean
25dbc73a
AM
3831ppc_elf_check_relocs (bfd *abfd,
3832 struct bfd_link_info *info,
3833 asection *sec,
3834 const Elf_Internal_Rela *relocs)
252b5132 3835{
7619e7c7 3836 struct ppc_elf_link_hash_table *htab;
25dbc73a
AM
3837 Elf_Internal_Shdr *symtab_hdr;
3838 struct elf_link_hash_entry **sym_hashes;
3839 const Elf_Internal_Rela *rel;
3840 const Elf_Internal_Rela *rel_end;
a6aa5195 3841 asection *got2, *sreloc;
727fc41e 3842 struct elf_link_hash_entry *tga;
25dbc73a
AM
3843
3844 if (info->relocatable)
3845 return TRUE;
252b5132 3846
c87b5a93
AM
3847 /* Don't do anything special with non-loaded, non-alloced sections.
3848 In particular, any relocs in such sections should not affect GOT
3849 and PLT reference counting (ie. we don't allow them to create GOT
3850 or PLT entries), there's no possibility or desire to optimize TLS
3851 relocs, and there's not much point in propagating relocs to shared
3852 libs that the dynamic linker won't relocate. */
3853 if ((sec->flags & SEC_ALLOC) == 0)
3854 return TRUE;
3855
252b5132 3856#ifdef DEBUG
25dbc73a
AM
3857 _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
3858 sec, abfd);
252b5132
RH
3859#endif
3860
0c8d6e5c 3861 BFD_ASSERT (is_ppc_elf (abfd));
0ffa91dd 3862
25dbc73a
AM
3863 /* Initialize howto table if not already done. */
3864 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3865 ppc_elf_howto_init ();
3866
7619e7c7 3867 htab = ppc_elf_hash_table (info);
25f23106
AM
3868 if (htab->glink == NULL)
3869 {
3870 if (htab->elf.dynobj == NULL)
3871 htab->elf.dynobj = abfd;
3872 if (!ppc_elf_create_glink (htab->elf.dynobj, info))
3873 return FALSE;
3874 }
727fc41e
AM
3875 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
3876 FALSE, FALSE, TRUE);
0ffa91dd 3877 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a 3878 sym_hashes = elf_sym_hashes (abfd);
a6aa5195 3879 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
3880 sreloc = NULL;
3881
3882 rel_end = relocs + sec->reloc_count;
3883 for (rel = relocs; rel < rel_end; rel++)
3884 {
3885 unsigned long r_symndx;
3886 enum elf_ppc_reloc_type r_type;
3887 struct elf_link_hash_entry *h;
727fc41e 3888 int tls_type;
25dbc73a
AM
3889
3890 r_symndx = ELF32_R_SYM (rel->r_info);
3891 if (r_symndx < symtab_hdr->sh_info)
3892 h = NULL;
3893 else
973a3492
L
3894 {
3895 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3896 while (h->root.type == bfd_link_hash_indirect
3897 || h->root.type == bfd_link_hash_warning)
3898 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3899 }
25dbc73a
AM
3900
3901 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3902 This shows up in particular in an R_PPC_ADDR32 in the eabi
3903 startup code. */
3b36f7e6
AM
3904 if (h != NULL
3905 && htab->got == NULL
3906 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
252b5132 3907 {
3b36f7e6
AM
3908 if (htab->elf.dynobj == NULL)
3909 htab->elf.dynobj = abfd;
3910 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3911 return FALSE;
3912 BFD_ASSERT (h == htab->elf.hgot);
25dbc73a 3913 }
252b5132 3914
727fc41e 3915 tls_type = 0;
de972ffa 3916 r_type = ELF32_R_TYPE (rel->r_info);
06a162cf 3917 if (h == NULL && !htab->is_vxworks)
e054468f 3918 {
06a162cf
AM
3919 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3920 abfd, r_symndx);
3921 if (isym == NULL)
3922 return FALSE;
3923
3924 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
3925 && (!info->shared
3926 || is_branch_reloc (r_type)))
e054468f 3927 {
06a162cf
AM
3928 struct plt_entry **ifunc;
3929 bfd_vma addend;
3930
3931 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
3932 PLT_IFUNC);
3933 if (ifunc == NULL)
e054468f
AM
3934 return FALSE;
3935
06a162cf
AM
3936 /* STT_GNU_IFUNC symbols must have a PLT entry;
3937 In a non-pie executable even when there are
3938 no plt calls. */
3939 addend = 0;
3940 if (r_type == R_PPC_PLTREL24)
e054468f 3941 {
06a162cf
AM
3942 ppc_elf_tdata (abfd)->makes_plt_call = 1;
3943 if (info->shared)
3944 addend = rel->r_addend;
e054468f 3945 }
06a162cf
AM
3946 if (!update_plt_info (abfd, ifunc, got2, addend))
3947 return FALSE;
e054468f 3948 }
25f23106
AM
3949 }
3950
de972ffa
AM
3951 if (!htab->is_vxworks
3952 && is_branch_reloc (r_type)
3953 && h != NULL
3954 && h == tga)
25f23106 3955 {
de972ffa
AM
3956 if (rel != relocs
3957 && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
3958 || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
3959 /* We have a new-style __tls_get_addr call with a marker
3960 reloc. */
3961 ;
3962 else
3963 /* Mark this section as having an old-style call. */
3964 sec->has_tls_get_addr_call = 1;
e054468f 3965 }
727fc41e 3966
25dbc73a
AM
3967 switch (r_type)
3968 {
727fc41e
AM
3969 case R_PPC_TLSGD:
3970 case R_PPC_TLSLD:
3971 /* These special tls relocs tie a call to __tls_get_addr with
3972 its parameter symbol. */
3973 break;
3974
25dbc73a
AM
3975 case R_PPC_GOT_TLSLD16:
3976 case R_PPC_GOT_TLSLD16_LO:
3977 case R_PPC_GOT_TLSLD16_HI:
3978 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
3979 tls_type = TLS_TLS | TLS_LD;
3980 goto dogottls;
252b5132 3981
25dbc73a
AM
3982 case R_PPC_GOT_TLSGD16:
3983 case R_PPC_GOT_TLSGD16_LO:
3984 case R_PPC_GOT_TLSGD16_HI:
3985 case R_PPC_GOT_TLSGD16_HA:
3986 tls_type = TLS_TLS | TLS_GD;
3987 goto dogottls;
3988
3989 case R_PPC_GOT_TPREL16:
3990 case R_PPC_GOT_TPREL16_LO:
3991 case R_PPC_GOT_TPREL16_HI:
3992 case R_PPC_GOT_TPREL16_HA:
1d483afe 3993 if (!info->executable)
25dbc73a
AM
3994 info->flags |= DF_STATIC_TLS;
3995 tls_type = TLS_TLS | TLS_TPREL;
3996 goto dogottls;
3997
3998 case R_PPC_GOT_DTPREL16:
3999 case R_PPC_GOT_DTPREL16_LO:
4000 case R_PPC_GOT_DTPREL16_HI:
4001 case R_PPC_GOT_DTPREL16_HA:
4002 tls_type = TLS_TLS | TLS_DTPREL;
4003 dogottls:
4004 sec->has_tls_reloc = 1;
4005 /* Fall thru */
252b5132 4006
25dbc73a
AM
4007 /* GOT16 relocations */
4008 case R_PPC_GOT16:
4009 case R_PPC_GOT16_LO:
4010 case R_PPC_GOT16_HI:
4011 case R_PPC_GOT16_HA:
4012 /* This symbol requires a global offset table entry. */
4013 if (htab->got == NULL)
4014 {
4015 if (htab->elf.dynobj == NULL)
4016 htab->elf.dynobj = abfd;
4017 if (!ppc_elf_create_got (htab->elf.dynobj, info))
4018 return FALSE;
4019 }
4020 if (h != NULL)
4021 {
4022 h->got.refcount += 1;
4023 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
4024 }
4025 else
4026 /* This is a global offset table entry for a local symbol. */
4027 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
4028 return FALSE;
91e21fb7
AM
4029
4030 /* We may also need a plt entry if the symbol turns out to be
4031 an ifunc. */
4032 if (h != NULL && !info->shared)
4033 {
4034 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
4035 return FALSE;
4036 }
25dbc73a 4037 break;
252b5132 4038
25dbc73a
AM
4039 /* Indirect .sdata relocation. */
4040 case R_PPC_EMB_SDAI16:
4041 if (info->shared)
4042 {
4043 bad_shared_reloc (abfd, r_type);
4044 return FALSE;
4045 }
c9a2f333
AM
4046 if (htab->sdata[0].section == NULL
4047 && !ppc_elf_create_linker_section (abfd, info, 0,
4048 &htab->sdata[0]))
4049 return FALSE;
76750a2f
AM
4050 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
4051 h, rel))
25dbc73a 4052 return FALSE;
046183de
AM
4053 if (h != NULL)
4054 {
4055 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4056 h->non_got_ref = TRUE;
4057 }
25dbc73a 4058 break;
252b5132 4059
25dbc73a
AM
4060 /* Indirect .sdata2 relocation. */
4061 case R_PPC_EMB_SDA2I16:
4062 if (info->shared)
4063 {
4064 bad_shared_reloc (abfd, r_type);
4065 return FALSE;
4066 }
c9a2f333
AM
4067 if (htab->sdata[1].section == NULL
4068 && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
4069 &htab->sdata[1]))
4070 return FALSE;
76750a2f
AM
4071 if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
4072 h, rel))
25dbc73a 4073 return FALSE;
046183de
AM
4074 if (h != NULL)
4075 {
4076 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4077 h->non_got_ref = TRUE;
4078 }
25dbc73a 4079 break;
252b5132 4080
b9c361e0
JL
4081 case R_PPC_VLE_SDAREL_LO16A:
4082 case R_PPC_VLE_SDAREL_LO16D:
4083 case R_PPC_VLE_SDAREL_HI16A:
4084 case R_PPC_VLE_SDAREL_HI16D:
4085 case R_PPC_VLE_SDAREL_HA16A:
4086 case R_PPC_VLE_SDAREL_HA16D:
25dbc73a 4087 case R_PPC_SDAREL16:
046183de 4088 if (htab->sdata[0].sym == NULL
bd6c6e2b 4089 && !create_sdata_sym (info, &htab->sdata[0]))
046183de 4090 return FALSE;
b9c361e0
JL
4091
4092 if (htab->sdata[1].sym == NULL
4093 && !create_sdata_sym (info, &htab->sdata[1]))
4094 return FALSE;
4095
046183de
AM
4096 if (h != NULL)
4097 {
4098 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4099 h->non_got_ref = TRUE;
4100 }
4101 break;
4102
b9c361e0
JL
4103 case R_PPC_VLE_REL8:
4104 case R_PPC_VLE_REL15:
4105 case R_PPC_VLE_REL24:
4106 case R_PPC_VLE_LO16A:
4107 case R_PPC_VLE_LO16D:
4108 case R_PPC_VLE_HI16A:
4109 case R_PPC_VLE_HI16D:
4110 case R_PPC_VLE_HA16A:
4111 case R_PPC_VLE_HA16D:
4112 break;
4113
25dbc73a 4114 case R_PPC_EMB_SDA2REL:
046183de
AM
4115 if (info->shared)
4116 {
4117 bad_shared_reloc (abfd, r_type);
4118 return FALSE;
4119 }
4120 if (htab->sdata[1].sym == NULL
bd6c6e2b 4121 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM
4122 return FALSE;
4123 if (h != NULL)
4124 {
4125 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4126 h->non_got_ref = TRUE;
4127 }
4128 break;
4129
b9c361e0
JL
4130 case R_PPC_VLE_SDA21_LO:
4131 case R_PPC_VLE_SDA21:
25dbc73a
AM
4132 case R_PPC_EMB_SDA21:
4133 case R_PPC_EMB_RELSDA:
046183de
AM
4134 if (info->shared)
4135 {
4136 bad_shared_reloc (abfd, r_type);
4137 return FALSE;
4138 }
4139 if (htab->sdata[0].sym == NULL
bd6c6e2b 4140 && !create_sdata_sym (info, &htab->sdata[0]))
046183de
AM
4141 return FALSE;
4142 if (htab->sdata[1].sym == NULL
bd6c6e2b 4143 && !create_sdata_sym (info, &htab->sdata[1]))
046183de
AM
4144 return FALSE;
4145 if (h != NULL)
4146 {
4147 ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
4148 h->non_got_ref = TRUE;
4149 }
4150 break;
4151
25dbc73a
AM
4152 case R_PPC_EMB_NADDR32:
4153 case R_PPC_EMB_NADDR16:
4154 case R_PPC_EMB_NADDR16_LO:
4155 case R_PPC_EMB_NADDR16_HI:
4156 case R_PPC_EMB_NADDR16_HA:
4157 if (info->shared)
4158 {
4159 bad_shared_reloc (abfd, r_type);
4160 return FALSE;
4161 }
4dc4a9a5 4162 if (h != NULL)
046183de 4163 h->non_got_ref = TRUE;
25dbc73a 4164 break;
252b5132 4165
25dbc73a 4166 case R_PPC_PLTREL24:
de972ffa 4167 if (h == NULL)
6d78d0b9
AM
4168 break;
4169 /* Fall through */
4170 case R_PPC_PLT32:
25dbc73a
AM
4171 case R_PPC_PLTREL32:
4172 case R_PPC_PLT16_LO:
4173 case R_PPC_PLT16_HI:
4174 case R_PPC_PLT16_HA:
4175#ifdef DEBUG
4176 fprintf (stderr, "Reloc requires a PLT entry\n");
4177#endif
4178 /* This symbol requires a procedure linkage table entry. We
4179 actually build the entry in finish_dynamic_symbol,
4180 because this might be a case of linking PIC code without
4181 linking in any dynamic objects, in which case we don't
4182 need to generate a procedure linkage table after all. */
7619e7c7 4183
25dbc73a
AM
4184 if (h == NULL)
4185 {
4186 /* It does not make sense to have a procedure linkage
4187 table entry for a local symbol. */
8de848d8 4188 info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
25f53a85
AM
4189 abfd, sec, rel->r_offset,
4190 ppc_elf_howto_table[r_type]->name);
25dbc73a
AM
4191 bfd_set_error (bfd_error_bad_value);
4192 return FALSE;
4193 }
a6aa5195
AM
4194 else
4195 {
016687f8 4196 bfd_vma addend = 0;
ee05f2fe 4197
016687f8
AM
4198 if (r_type == R_PPC_PLTREL24)
4199 {
4200 ppc_elf_tdata (abfd)->makes_plt_call = 1;
a877a2b6
AM
4201 if (info->shared)
4202 addend = rel->r_addend;
016687f8 4203 }
a6aa5195 4204 h->needs_plt = 1;
32af9f6e 4205 if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
a6aa5195
AM
4206 return FALSE;
4207 }
25dbc73a 4208 break;
ee05f2fe 4209
25dbc73a
AM
4210 /* The following relocations don't need to propagate the
4211 relocation if linking a shared object since they are
4212 section relative. */
4213 case R_PPC_SECTOFF:
4214 case R_PPC_SECTOFF_LO:
4215 case R_PPC_SECTOFF_HI:
4216 case R_PPC_SECTOFF_HA:
4217 case R_PPC_DTPREL16:
4218 case R_PPC_DTPREL16_LO:
4219 case R_PPC_DTPREL16_HI:
4220 case R_PPC_DTPREL16_HA:
4221 case R_PPC_TOC16:
4222 break;
252b5132 4223
d7128ce4
AM
4224 case R_PPC_REL16:
4225 case R_PPC_REL16_LO:
4226 case R_PPC_REL16_HI:
4227 case R_PPC_REL16_HA:
016687f8 4228 ppc_elf_tdata (abfd)->has_rel16 = 1;
d7128ce4
AM
4229 break;
4230
a6aa5195 4231 /* These are just markers. */
25dbc73a
AM
4232 case R_PPC_TLS:
4233 case R_PPC_EMB_MRKREF:
4234 case R_PPC_NONE:
4235 case R_PPC_max:
32af9f6e
AM
4236 case R_PPC_RELAX:
4237 case R_PPC_RELAX_PLT:
4238 case R_PPC_RELAX_PLTREL24:
25dbc73a 4239 break;
252b5132 4240
25dbc73a
AM
4241 /* These should only appear in dynamic objects. */
4242 case R_PPC_COPY:
4243 case R_PPC_GLOB_DAT:
4244 case R_PPC_JMP_SLOT:
4245 case R_PPC_RELATIVE:
e054468f 4246 case R_PPC_IRELATIVE:
25dbc73a 4247 break;
252b5132 4248
25dbc73a
AM
4249 /* These aren't handled yet. We'll report an error later. */
4250 case R_PPC_ADDR30:
4251 case R_PPC_EMB_RELSEC16:
4252 case R_PPC_EMB_RELST_LO:
4253 case R_PPC_EMB_RELST_HI:
4254 case R_PPC_EMB_RELST_HA:
4255 case R_PPC_EMB_BIT_FLD:
4256 break;
252b5132 4257
25dbc73a
AM
4258 /* This refers only to functions defined in the shared library. */
4259 case R_PPC_LOCAL24PC:
727fc41e 4260 if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
016687f8
AM
4261 {
4262 htab->plt_type = PLT_OLD;
4263 htab->old_bfd = abfd;
4264 }
25dbc73a 4265 break;
252b5132 4266
25dbc73a
AM
4267 /* This relocation describes the C++ object vtable hierarchy.
4268 Reconstruct it for later use during GC. */
4269 case R_PPC_GNU_VTINHERIT:
4270 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4271 return FALSE;
4272 break;
252b5132 4273
25dbc73a
AM
4274 /* This relocation describes which C++ vtable entries are actually
4275 used. Record for later use during GC. */
4276 case R_PPC_GNU_VTENTRY:
d17e0c6e
JB
4277 BFD_ASSERT (h != NULL);
4278 if (h != NULL
4279 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
25dbc73a
AM
4280 return FALSE;
4281 break;
252b5132 4282
25dbc73a
AM
4283 /* We shouldn't really be seeing these. */
4284 case R_PPC_TPREL32:
1d483afe
AM
4285 case R_PPC_TPREL16:
4286 case R_PPC_TPREL16_LO:
4287 case R_PPC_TPREL16_HI:
4288 case R_PPC_TPREL16_HA:
4289 if (!info->executable)
25dbc73a
AM
4290 info->flags |= DF_STATIC_TLS;
4291 goto dodyn;
252b5132 4292
25dbc73a
AM
4293 /* Nor these. */
4294 case R_PPC_DTPMOD32:
4295 case R_PPC_DTPREL32:
4296 goto dodyn;
252b5132 4297
9edfd1af
AM
4298 case R_PPC_REL32:
4299 if (h == NULL
4300 && got2 != NULL
4301 && (sec->flags & SEC_CODE) != 0
a877a2b6 4302 && info->shared
4a3dc543 4303 && htab->plt_type == PLT_UNSET)
9edfd1af
AM
4304 {
4305 /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
4306 the start of a function, which assembles to a REL32
4307 reference to .got2. If we detect one of these, then
4308 force the old PLT layout because the linker cannot
4309 reliably deduce the GOT pointer value needed for
4310 PLT call stubs. */
4311 asection *s;
87d72d41 4312 Elf_Internal_Sym *isym;
9edfd1af 4313
87d72d41
AM
4314 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4315 abfd, r_symndx);
4316 if (isym == NULL)
4317 return FALSE;
4318
4319 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
9edfd1af 4320 if (s == got2)
016687f8
AM
4321 {
4322 htab->plt_type = PLT_OLD;
4323 htab->old_bfd = abfd;
4324 }
9edfd1af 4325 }
7123df0e 4326 if (h == NULL || h == htab->elf.hgot)
fd38b44c 4327 break;
625af618
AM
4328 /* fall through */
4329
4330 case R_PPC_ADDR32:
4331 case R_PPC_ADDR16:
4332 case R_PPC_ADDR16_LO:
4333 case R_PPC_ADDR16_HI:
4334 case R_PPC_ADDR16_HA:
4335 case R_PPC_UADDR32:
4336 case R_PPC_UADDR16:
4337 if (h != NULL && !info->shared)
4338 {
4339 /* We may need a plt entry if the symbol turns out to be
4340 a function defined in a dynamic object. */
3ec01793 4341 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
625af618
AM
4342 return FALSE;
4343
4344 /* We may need a copy reloc too. */
4345 h->non_got_ref = 1;
4346 h->pointer_equality_needed = 1;
4347 }
4348 goto dodyn;
9edfd1af 4349
25dbc73a
AM
4350 case R_PPC_REL24:
4351 case R_PPC_REL14:
4352 case R_PPC_REL14_BRTAKEN:
4353 case R_PPC_REL14_BRNTAKEN:
d7128ce4 4354 if (h == NULL)
25dbc73a 4355 break;
7123df0e 4356 if (h == htab->elf.hgot)
d7128ce4 4357 {
7123df0e 4358 if (htab->plt_type == PLT_UNSET)
016687f8
AM
4359 {
4360 htab->plt_type = PLT_OLD;
4361 htab->old_bfd = abfd;
4362 }
d7128ce4
AM
4363 break;
4364 }
25dbc73a 4365 /* fall through */
ee05f2fe 4366
25dbc73a 4367 case R_PPC_ADDR24:
25dbc73a
AM
4368 case R_PPC_ADDR14:
4369 case R_PPC_ADDR14_BRTAKEN:
4370 case R_PPC_ADDR14_BRNTAKEN:
25dbc73a
AM
4371 if (h != NULL && !info->shared)
4372 {
4373 /* We may need a plt entry if the symbol turns out to be
4374 a function defined in a dynamic object. */
e054468f 4375 h->needs_plt = 1;
de972ffa 4376 if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
a6aa5195 4377 return FALSE;
625af618 4378 break;
25dbc73a 4379 }
7619e7c7 4380
25dbc73a
AM
4381 dodyn:
4382 /* If we are creating a shared library, and this is a reloc
4383 against a global symbol, or a non PC relative reloc
4384 against a local symbol, then we need to copy the reloc
4385 into the shared library. However, if we are linking with
4386 -Bsymbolic, we do not need to copy a reloc against a
4387 global symbol which is defined in an object we are
4388 including in the link (i.e., DEF_REGULAR is set). At
4389 this point we have not seen all the input files, so it is
4390 possible that DEF_REGULAR is not set now but will be set
4391 later (it is never cleared). In case of a weak definition,
4392 DEF_REGULAR may be cleared later by a strong definition in
4393 a shared library. We account for that possibility below by
4394 storing information in the dyn_relocs field of the hash
4395 table entry. A similar situation occurs when creating
4396 shared libraries and symbol visibility changes render the
4397 symbol local.
7619e7c7 4398
25dbc73a
AM
4399 If on the other hand, we are creating an executable, we
4400 may need to keep relocations for symbols satisfied by a
4401 dynamic library if we manage to avoid copy relocs for the
4402 symbol. */
4403 if ((info->shared
1d483afe 4404 && (must_be_dyn_reloc (info, r_type)
25dbc73a
AM
4405 || (h != NULL
4406 && (! info->symbolic
4407 || h->root.type == bfd_link_hash_defweak
4408 || !h->def_regular))))
4409 || (ELIMINATE_COPY_RELOCS
4410 && !info->shared
25dbc73a
AM
4411 && h != NULL
4412 && (h->root.type == bfd_link_hash_defweak
de972ffa 4413 || !h->def_regular)))
25dbc73a 4414 {
6061a67d
AM
4415 struct elf_dyn_relocs *p;
4416 struct elf_dyn_relocs **rel_head;
7619e7c7 4417
25dbc73a
AM
4418#ifdef DEBUG
4419 fprintf (stderr,
4420 "ppc_elf_check_relocs needs to "
4421 "create relocation for %s\n",
4422 (h && h->root.root.string
4423 ? h->root.root.string : "<unknown>"));
4424#endif
4425 if (sreloc == NULL)
4426 {
c9a2f333
AM
4427 if (htab->elf.dynobj == NULL)
4428 htab->elf.dynobj = abfd;
83bac4b0
NC
4429
4430 sreloc = _bfd_elf_make_dynamic_reloc_section
4431 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
4432
25dbc73a 4433 if (sreloc == NULL)
83bac4b0 4434 return FALSE;
25dbc73a 4435 }
7619e7c7 4436
25dbc73a
AM
4437 /* If this is a global symbol, we count the number of
4438 relocations we need for this symbol. */
4439 if (h != NULL)
4440 {
91d6fa6a 4441 rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
25dbc73a
AM
4442 }
4443 else
4444 {
4445 /* Track dynamic relocs needed for local syms too.
4446 We really need local syms available to do this
4447 easily. Oh well. */
25dbc73a 4448 asection *s;
6edfbbad 4449 void *vpp;
87d72d41 4450 Elf_Internal_Sym *isym;
6edfbbad 4451
87d72d41
AM
4452 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4453 abfd, r_symndx);
4454 if (isym == NULL)
25dbc73a 4455 return FALSE;
7fce784e 4456
87d72d41
AM
4457 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
4458 if (s == NULL)
4459 s = sec;
4460
6edfbbad 4461 vpp = &elf_section_data (s)->local_dynrel;
6061a67d 4462 rel_head = (struct elf_dyn_relocs **) vpp;
25dbc73a 4463 }
7fce784e 4464
91d6fa6a 4465 p = *rel_head;
25dbc73a
AM
4466 if (p == NULL || p->sec != sec)
4467 {
4468 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
4469 if (p == NULL)
4470 return FALSE;
91d6fa6a
NC
4471 p->next = *rel_head;
4472 *rel_head = p;
25dbc73a
AM
4473 p->sec = sec;
4474 p->count = 0;
4475 p->pc_count = 0;
4476 }
4477
4478 p->count += 1;
1d483afe 4479 if (!must_be_dyn_reloc (info, r_type))
25dbc73a 4480 p->pc_count += 1;
7619e7c7 4481 }
25dbc73a
AM
4482
4483 break;
7619e7c7
AM
4484 }
4485 }
ee05f2fe 4486
25dbc73a
AM
4487 return TRUE;
4488}
4489\f
34c8bcba
JM
4490
4491/* Merge object attributes from IBFD into OBFD. Raise an error if
4492 there are conflicting attributes. */
4493static bfd_boolean
4494ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
4495{
c6e65352
DJ
4496 obj_attribute *in_attr, *in_attrs;
4497 obj_attribute *out_attr, *out_attrs;
34c8bcba
JM
4498
4499 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4500 {
4501 /* This is the first object. Copy the attributes. */
4502 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4503
4504 /* Use the Tag_null value to indicate the attributes have been
4505 initialized. */
4506 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4507
4508 return TRUE;
4509 }
4510
c6e65352
DJ
4511 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4512 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4513
34c8bcba
JM
4514 /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
4515 non-conflicting ones. */
c6e65352
DJ
4516 in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
4517 out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
4518 if (in_attr->i != out_attr->i)
34c8bcba 4519 {
c6e65352
DJ
4520 out_attr->type = 1;
4521 if (out_attr->i == 0)
4522 out_attr->i = in_attr->i;
4523 else if (in_attr->i == 0)
34c8bcba 4524 ;
c6e65352 4525 else if (out_attr->i == 1 && in_attr->i == 2)
34c8bcba
JM
4526 _bfd_error_handler
4527 (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
3c7b9897
AM
4528 else if (out_attr->i == 1 && in_attr->i == 3)
4529 _bfd_error_handler
5b914448 4530 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM
4531 obfd, ibfd);
4532 else if (out_attr->i == 3 && in_attr->i == 1)
4533 _bfd_error_handler
5b914448 4534 (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
3c7b9897
AM
4535 ibfd, obfd);
4536 else if (out_attr->i == 3 && in_attr->i == 2)
4537 _bfd_error_handler
5b914448 4538 (_("Warning: %B uses soft float, %B uses single-precision hard float"),
3c7b9897
AM
4539 ibfd, obfd);
4540 else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
34c8bcba
JM
4541 _bfd_error_handler
4542 (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
3c7b9897 4543 else if (in_attr->i > 3)
34c8bcba
JM
4544 _bfd_error_handler
4545 (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
c6e65352 4546 in_attr->i);
34c8bcba
JM
4547 else
4548 _bfd_error_handler
4549 (_("Warning: %B uses unknown floating point ABI %d"), obfd,
c6e65352
DJ
4550 out_attr->i);
4551 }
4552
4553 /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
4554 merge non-conflicting ones. */
4555 in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
4556 out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
4557 if (in_attr->i != out_attr->i)
4558 {
4559 const char *in_abi = NULL, *out_abi = NULL;
4560
4561 switch (in_attr->i)
4562 {
4563 case 1: in_abi = "generic"; break;
4564 case 2: in_abi = "AltiVec"; break;
4565 case 3: in_abi = "SPE"; break;
4566 }
4567
4568 switch (out_attr->i)
4569 {
4570 case 1: out_abi = "generic"; break;
4571 case 2: out_abi = "AltiVec"; break;
4572 case 3: out_abi = "SPE"; break;
4573 }
4574
4575 out_attr->type = 1;
4576 if (out_attr->i == 0)
4577 out_attr->i = in_attr->i;
4578 else if (in_attr->i == 0)
4579 ;
4580 /* For now, allow generic to transition to AltiVec or SPE
4581 without a warning. If GCC marked files with their stack
4582 alignment and used don't-care markings for files which are
4583 not affected by the vector ABI, we could warn about this
4584 case too. */
4585 else if (out_attr->i == 1)
4586 out_attr->i = in_attr->i;
4587 else if (in_attr->i == 1)
4588 ;
4589 else if (in_abi == NULL)
4590 _bfd_error_handler
4591 (_("Warning: %B uses unknown vector ABI %d"), ibfd,
4592 in_attr->i);
4593 else if (out_abi == NULL)
4594 _bfd_error_handler
4595 (_("Warning: %B uses unknown vector ABI %d"), obfd,
4596 in_attr->i);
4597 else
4598 _bfd_error_handler
4599 (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
4600 ibfd, obfd, in_abi, out_abi);
34c8bcba
JM
4601 }
4602
f82e0623
NF
4603 /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
4604 and merge non-conflicting ones. */
4605 in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
4606 out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
4607 if (in_attr->i != out_attr->i)
4608 {
4609 out_attr->type = 1;
4610 if (out_attr->i == 0)
4611 out_attr->i = in_attr->i;
4612 else if (in_attr->i == 0)
4613 ;
4614 else if (out_attr->i == 1 && in_attr->i == 2)
4615 _bfd_error_handler
4616 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
4617 else if (out_attr->i == 2 && in_attr->i == 1)
4618 _bfd_error_handler
4619 (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
4620 else if (in_attr->i > 2)
4621 _bfd_error_handler
4622 (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
4623 in_attr->i);
4624 else
4625 _bfd_error_handler
4626 (_("Warning: %B uses unknown small structure return convention %d"), obfd,
4627 out_attr->i);
4628 }
4629
34c8bcba
JM
4630 /* Merge Tag_compatibility attributes and any common GNU ones. */
4631 _bfd_elf_merge_object_attributes (ibfd, obfd);
4632
4633 return TRUE;
4634}
4635
8853c3d3
AM
4636/* Merge backend specific data from an object file to the output
4637 object file when linking. */
4638
4639static bfd_boolean
4640ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4641{
4642 flagword old_flags;
4643 flagword new_flags;
4644 bfd_boolean error;
4645
0c8d6e5c 4646 if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
8853c3d3
AM
4647 return TRUE;
4648
cc643b88 4649 /* Check if we have the same endianness. */
8853c3d3
AM
4650 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4651 return FALSE;
4652
34c8bcba
JM
4653 if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
4654 return FALSE;
4655
8853c3d3
AM
4656 new_flags = elf_elfheader (ibfd)->e_flags;
4657 old_flags = elf_elfheader (obfd)->e_flags;
4658 if (!elf_flags_init (obfd))
4659 {
4660 /* First call, no flags set. */
4661 elf_flags_init (obfd) = TRUE;
4662 elf_elfheader (obfd)->e_flags = new_flags;
4663 }
4664
4665 /* Compatible flags are ok. */
4666 else if (new_flags == old_flags)
4667 ;
4668
4669 /* Incompatible flags. */
4670 else
4671 {
4672 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
4673 to be linked with either. */
4674 error = FALSE;
4675 if ((new_flags & EF_PPC_RELOCATABLE) != 0
4676 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
4677 {
4678 error = TRUE;
4679 (*_bfd_error_handler)
4680 (_("%B: compiled with -mrelocatable and linked with "
4681 "modules compiled normally"), ibfd);
4682 }
4683 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
4684 && (old_flags & EF_PPC_RELOCATABLE) != 0)
4685 {
4686 error = TRUE;
4687 (*_bfd_error_handler)
4688 (_("%B: compiled normally and linked with "
4689 "modules compiled with -mrelocatable"), ibfd);
4690 }
4691
4692 /* The output is -mrelocatable-lib iff both the input files are. */
4693 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
4694 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
4695
4696 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
4697 but each input file is either -mrelocatable or -mrelocatable-lib. */
4698 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
4699 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
4700 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
4701 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
4702
4703 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
4704 any module uses it. */
4705 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
4706
4707 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4708 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
4709
4710 /* Warn about any other mismatches. */
4711 if (new_flags != old_flags)
4712 {
4713 error = TRUE;
4714 (*_bfd_error_handler)
4715 (_("%B: uses different e_flags (0x%lx) fields "
4716 "than previous modules (0x%lx)"),
4717 ibfd, (long) new_flags, (long) old_flags);
4718 }
4719
4720 if (error)
4721 {
4722 bfd_set_error (bfd_error_bad_value);
4723 return FALSE;
4724 }
4725 }
4726
4727 return TRUE;
4728}
b9c361e0
JL
4729
4730static void
4731ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
4732 bfd_vma offset, bfd_vma relocation,
4733 split16_format_type split16_format)
4734
4735{
4736 bfd_vma insn, top5, bottom11;
4737
4738 insn = bfd_get_32 (output_bfd, contents + offset);
4739 top5 = relocation >> 11;
4740 top5 = top5 << (split16_format == split16a_type ? 20 : 16);
4741 bottom11 = relocation & 0x7ff;
4742 insn |= top5;
4743 insn |= bottom11;
4744 bfd_put_32 (output_bfd, insn, contents + offset);
4745}
4746
8853c3d3 4747\f
d7128ce4
AM
4748/* Choose which PLT scheme to use, and set .plt flags appropriately.
4749 Returns -1 on error, 0 for old PLT, 1 for new PLT. */
4750int
4751ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
4752 struct bfd_link_info *info,
016687f8 4753 enum ppc_elf_plt_type plt_style,
0ba07910 4754 int emit_stub_syms)
d7128ce4
AM
4755{
4756 struct ppc_elf_link_hash_table *htab;
9d8504b1 4757 flagword flags;
d7128ce4
AM
4758
4759 htab = ppc_elf_hash_table (info);
4a3dc543 4760
a7f2871e
AM
4761 htab->emit_stub_syms = emit_stub_syms;
4762
4a3dc543 4763 if (htab->plt_type == PLT_UNSET)
016687f8 4764 {
b3874e1a
AM
4765 struct elf_link_hash_entry *h;
4766
016687f8
AM
4767 if (plt_style == PLT_OLD)
4768 htab->plt_type = PLT_OLD;
b3874e1a
AM
4769 else if (info->shared
4770 && htab->elf.dynamic_sections_created
4771 && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
4772 FALSE, FALSE, TRUE)) != NULL
4773 && (h->type == STT_FUNC
4774 || h->needs_plt)
4775 && h->ref_regular
4776 && !(SYMBOL_CALLS_LOCAL (info, h)
4777 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4778 && h->root.type == bfd_link_hash_undefweak)))
4779 {
4780 /* Profiling of shared libs (and pies) is not supported with
4781 secure plt, because ppc32 does profiling before a
4782 function prologue and a secure plt pic call stubs needs
4783 r30 to be set up. */
4784 htab->plt_type = PLT_OLD;
4785 }
016687f8
AM
4786 else
4787 {
4788 bfd *ibfd;
4789 enum ppc_elf_plt_type plt_type = plt_style;
4790
4791 /* Look through the reloc flags left by ppc_elf_check_relocs.
4792 Use the old style bss plt if a file makes plt calls
4793 without using the new relocs, and if ld isn't given
4794 --secure-plt and we never see REL16 relocs. */
4795 if (plt_type == PLT_UNSET)
4796 plt_type = PLT_OLD;
60b31e8d 4797 for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
0c8d6e5c 4798 if (is_ppc_elf (ibfd))
016687f8
AM
4799 {
4800 if (ppc_elf_tdata (ibfd)->has_rel16)
4801 plt_type = PLT_NEW;
4802 else if (ppc_elf_tdata (ibfd)->makes_plt_call)
4803 {
4804 plt_type = PLT_OLD;
4805 htab->old_bfd = ibfd;
4806 break;
4807 }
4808 }
4809 htab->plt_type = plt_type;
4810 }
4811 }
4812 if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
b3874e1a
AM
4813 {
4814 if (htab->old_bfd != NULL)
4815 info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
4816 htab->old_bfd);
4817 else
4818 info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
4819 }
d7128ce4 4820
4a3dc543 4821 BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
9d8504b1 4822
4a3dc543 4823 if (htab->plt_type == PLT_NEW)
9d8504b1
PB
4824 {
4825 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
4826 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
86b9da88
AM
4827
4828 /* The new PLT is a loaded section. */
4829 if (htab->plt != NULL
4830 && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
4831 return -1;
4832
4833 /* The new GOT is not executable. */
4834 if (htab->got != NULL
4835 && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
4836 return -1;
d7128ce4
AM
4837 }
4838 else
4839 {
4840 /* Stop an unused .glink section from affecting .text alignment. */
86b9da88
AM
4841 if (htab->glink != NULL
4842 && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
4843 return -1;
d7128ce4 4844 }
4a3dc543 4845 return htab->plt_type == PLT_NEW;
d7128ce4
AM
4846}
4847\f
25dbc73a
AM
4848/* Return the section that should be marked against GC for a given
4849 relocation. */
586119b3 4850
25dbc73a
AM
4851static asection *
4852ppc_elf_gc_mark_hook (asection *sec,
07adf181 4853 struct bfd_link_info *info,
25dbc73a
AM
4854 Elf_Internal_Rela *rel,
4855 struct elf_link_hash_entry *h,
4856 Elf_Internal_Sym *sym)
4857{
4858 if (h != NULL)
07adf181
AM
4859 switch (ELF32_R_TYPE (rel->r_info))
4860 {
4861 case R_PPC_GNU_VTINHERIT:
4862 case R_PPC_GNU_VTENTRY:
4863 return NULL;
4864 }
4865
4866 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
25dbc73a 4867}
a876ecf9 4868
25dbc73a
AM
4869/* Update the got, plt and dynamic reloc reference counts for the
4870 section being removed. */
4871
4872static bfd_boolean
4873ppc_elf_gc_sweep_hook (bfd *abfd,
4874 struct bfd_link_info *info,
4875 asection *sec,
4876 const Elf_Internal_Rela *relocs)
4877{
4878 struct ppc_elf_link_hash_table *htab;
4879 Elf_Internal_Shdr *symtab_hdr;
4880 struct elf_link_hash_entry **sym_hashes;
4881 bfd_signed_vma *local_got_refcounts;
4882 const Elf_Internal_Rela *rel, *relend;
a6aa5195 4883 asection *got2;
25dbc73a 4884
7dda2462
TG
4885 if (info->relocatable)
4886 return TRUE;
4887
c87b5a93
AM
4888 if ((sec->flags & SEC_ALLOC) == 0)
4889 return TRUE;
4890
25dbc73a
AM
4891 elf_section_data (sec)->local_dynrel = NULL;
4892
4893 htab = ppc_elf_hash_table (info);
0ffa91dd 4894 symtab_hdr = &elf_symtab_hdr (abfd);
25dbc73a
AM
4895 sym_hashes = elf_sym_hashes (abfd);
4896 local_got_refcounts = elf_local_got_refcounts (abfd);
a6aa5195 4897 got2 = bfd_get_section_by_name (abfd, ".got2");
25dbc73a
AM
4898
4899 relend = relocs + sec->reloc_count;
4900 for (rel = relocs; rel < relend; rel++)
4901 {
4902 unsigned long r_symndx;
4903 enum elf_ppc_reloc_type r_type;
4904 struct elf_link_hash_entry *h = NULL;
4905
4906 r_symndx = ELF32_R_SYM (rel->r_info);
4907 if (r_symndx >= symtab_hdr->sh_info)
a876ecf9 4908 {
6061a67d 4909 struct elf_dyn_relocs **pp, *p;
25dbc73a
AM
4910 struct ppc_elf_link_hash_entry *eh;
4911
4912 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4913 while (h->root.type == bfd_link_hash_indirect
4914 || h->root.type == bfd_link_hash_warning)
4915 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4916 eh = (struct ppc_elf_link_hash_entry *) h;
4917
4918 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4919 if (p->sec == sec)
4920 {
4921 /* Everything must go for SEC. */
4922 *pp = p->next;
4923 break;
4924 }
a876ecf9 4925 }
ee05f2fe 4926
25dbc73a 4927 r_type = ELF32_R_TYPE (rel->r_info);
de972ffa
AM
4928 if (!htab->is_vxworks
4929 && h == NULL
4930 && local_got_refcounts != NULL
4931 && (!info->shared
4932 || is_branch_reloc (r_type)))
e054468f 4933 {
de972ffa
AM
4934 struct plt_entry **local_plt = (struct plt_entry **)
4935 (local_got_refcounts + symtab_hdr->sh_info);
4936 char *local_got_tls_masks = (char *)
4937 (local_plt + symtab_hdr->sh_info);
4938 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
e054468f 4939 {
de972ffa 4940 struct plt_entry **ifunc = local_plt + r_symndx;
a877a2b6
AM
4941 bfd_vma addend = 0;
4942 struct plt_entry *ent;
4943
4944 if (r_type == R_PPC_PLTREL24 && info->shared)
4945 addend = rel->r_addend;
4946 ent = find_plt_ent (ifunc, got2, addend);
e054468f
AM
4947 if (ent->plt.refcount > 0)
4948 ent->plt.refcount -= 1;
4949 continue;
4950 }
4951 }
4952
25dbc73a 4953 switch (r_type)
ee05f2fe 4954 {
25dbc73a
AM
4955 case R_PPC_GOT_TLSLD16:
4956 case R_PPC_GOT_TLSLD16_LO:
4957 case R_PPC_GOT_TLSLD16_HI:
4958 case R_PPC_GOT_TLSLD16_HA:
25dbc73a
AM
4959 case R_PPC_GOT_TLSGD16:
4960 case R_PPC_GOT_TLSGD16_LO:
4961 case R_PPC_GOT_TLSGD16_HI:
4962 case R_PPC_GOT_TLSGD16_HA:
4963 case R_PPC_GOT_TPREL16:
4964 case R_PPC_GOT_TPREL16_LO:
4965 case R_PPC_GOT_TPREL16_HI:
4966 case R_PPC_GOT_TPREL16_HA:
4967 case R_PPC_GOT_DTPREL16:
4968 case R_PPC_GOT_DTPREL16_LO:
4969 case R_PPC_GOT_DTPREL16_HI:
4970 case R_PPC_GOT_DTPREL16_HA:
4971 case R_PPC_GOT16:
4972 case R_PPC_GOT16_LO:
4973 case R_PPC_GOT16_HI:
4974 case R_PPC_GOT16_HA:
4975 if (h != NULL)
ee05f2fe 4976 {
25dbc73a
AM
4977 if (h->got.refcount > 0)
4978 h->got.refcount--;
91e21fb7
AM
4979 if (!info->shared)
4980 {
4981 struct plt_entry *ent;
4982
4983 ent = find_plt_ent (&h->plt.plist, NULL, 0);
32af9f6e 4984 if (ent != NULL && ent->plt.refcount > 0)
91e21fb7
AM
4985 ent->plt.refcount -= 1;
4986 }
ee05f2fe 4987 }
25dbc73a
AM
4988 else if (local_got_refcounts != NULL)
4989 {
4990 if (local_got_refcounts[r_symndx] > 0)
4991 local_got_refcounts[r_symndx]--;
4992 }
4993 break;
ee05f2fe 4994
25dbc73a
AM
4995 case R_PPC_REL24:
4996 case R_PPC_REL14:
4997 case R_PPC_REL14_BRTAKEN:
4998 case R_PPC_REL14_BRNTAKEN:
4999 case R_PPC_REL32:
3b36f7e6 5000 if (h == NULL || h == htab->elf.hgot)
25dbc73a
AM
5001 break;
5002 /* Fall thru */
ee05f2fe 5003
25dbc73a
AM
5004 case R_PPC_ADDR32:
5005 case R_PPC_ADDR24:
5006 case R_PPC_ADDR16:
5007 case R_PPC_ADDR16_LO:
5008 case R_PPC_ADDR16_HI:
5009 case R_PPC_ADDR16_HA:
5010 case R_PPC_ADDR14:
5011 case R_PPC_ADDR14_BRTAKEN:
5012 case R_PPC_ADDR14_BRNTAKEN:
5013 case R_PPC_UADDR32:
5014 case R_PPC_UADDR16:
87538722
AM
5015 if (info->shared)
5016 break;
5017
25dbc73a
AM
5018 case R_PPC_PLT32:
5019 case R_PPC_PLTREL24:
87538722 5020 case R_PPC_PLTREL32:
25dbc73a
AM
5021 case R_PPC_PLT16_LO:
5022 case R_PPC_PLT16_HI:
5023 case R_PPC_PLT16_HA:
5024 if (h != NULL)
5025 {
a877a2b6
AM
5026 bfd_vma addend = 0;
5027 struct plt_entry *ent;
5028
5029 if (r_type == R_PPC_PLTREL24 && info->shared)
5030 addend = rel->r_addend;
5031 ent = find_plt_ent (&h->plt.plist, got2, addend);
32af9f6e 5032 if (ent != NULL && ent->plt.refcount > 0)
a6aa5195 5033 ent->plt.refcount -= 1;
25dbc73a
AM
5034 }
5035 break;
ee05f2fe 5036
25dbc73a
AM
5037 default:
5038 break;
5039 }
7fce784e 5040 }
7fce784e
AS
5041 return TRUE;
5042}
25dbc73a 5043\f
3a71aa26
AM
5044/* Set plt output section type, htab->tls_get_addr, and call the
5045 generic ELF tls_setup function. */
7fce784e 5046
25dbc73a 5047asection *
a7f2871e
AM
5048ppc_elf_tls_setup (bfd *obfd,
5049 struct bfd_link_info *info,
5050 int no_tls_get_addr_opt)
7fce784e 5051{
25dbc73a 5052 struct ppc_elf_link_hash_table *htab;
7fce784e 5053
25dbc73a 5054 htab = ppc_elf_hash_table (info);
a7f2871e
AM
5055 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5056 FALSE, FALSE, TRUE);
5057 if (!no_tls_get_addr_opt)
5058 {
5059 struct elf_link_hash_entry *opt, *tga;
5060 opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
5061 FALSE, FALSE, TRUE);
5062 if (opt != NULL
5063 && (opt->root.type == bfd_link_hash_defined
5064 || opt->root.type == bfd_link_hash_defweak))
5065 {
5066 /* If glibc supports an optimized __tls_get_addr call stub,
5067 signalled by the presence of __tls_get_addr_opt, and we'll
5068 be calling __tls_get_addr via a plt call stub, then
5069 make __tls_get_addr point to __tls_get_addr_opt. */
5070 tga = htab->tls_get_addr;
5071 if (htab->elf.dynamic_sections_created
5072 && tga != NULL
5073 && (tga->type == STT_FUNC
5074 || tga->needs_plt)
5075 && !(SYMBOL_CALLS_LOCAL (info, tga)
5076 || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
5077 && tga->root.type == bfd_link_hash_undefweak)))
5078 {
5079 struct plt_entry *ent;
32af9f6e
AM
5080 for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
5081 if (ent->plt.refcount > 0)
5082 break;
5083 if (ent != NULL)
a7f2871e
AM
5084 {
5085 tga->root.type = bfd_link_hash_indirect;
5086 tga->root.u.i.link = &opt->root;
5087 ppc_elf_copy_indirect_symbol (info, opt, tga);
5088 if (opt->dynindx != -1)
5089 {
5090 /* Use __tls_get_addr_opt in dynamic relocations. */
5091 opt->dynindx = -1;
5092 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
5093 opt->dynstr_index);
5094 if (!bfd_elf_link_record_dynamic_symbol (info, opt))
5095 return FALSE;
5096 }
5097 htab->tls_get_addr = opt;
5098 }
5099 }
5100 }
5101 else
5102 no_tls_get_addr_opt = TRUE;
5103 }
5104 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
4a3dc543 5105 if (htab->plt_type == PLT_NEW
d7128ce4
AM
5106 && htab->plt != NULL
5107 && htab->plt->output_section != NULL)
5108 {
5109 elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
5110 elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
5111 }
5112
25dbc73a 5113 return _bfd_elf_tls_setup (obfd, info);
7fce784e
AS
5114}
5115
3a71aa26
AM
5116/* Return TRUE iff REL is a branch reloc with a global symbol matching
5117 HASH. */
5118
5119static bfd_boolean
5120branch_reloc_hash_match (const bfd *ibfd,
5121 const Elf_Internal_Rela *rel,
5122 const struct elf_link_hash_entry *hash)
5123{
5124 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
5125 enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
5126 unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
5127
e054468f 5128 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
3a71aa26
AM
5129 {
5130 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5131 struct elf_link_hash_entry *h;
5132
5133 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5134 while (h->root.type == bfd_link_hash_indirect
5135 || h->root.type == bfd_link_hash_warning)
5136 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5137 if (h == hash)
5138 return TRUE;
5139 }
5140 return FALSE;
5141}
5142
25dbc73a
AM
5143/* Run through all the TLS relocs looking for optimization
5144 opportunities. */
252b5132 5145
25dbc73a
AM
5146bfd_boolean
5147ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
5148 struct bfd_link_info *info)
252b5132 5149{
7fce784e 5150 bfd *ibfd;
25dbc73a
AM
5151 asection *sec;
5152 struct ppc_elf_link_hash_table *htab;
b7fcf6f6 5153 int pass;
252b5132 5154
1d483afe 5155 if (info->relocatable || !info->executable)
25dbc73a 5156 return TRUE;
252b5132 5157
7619e7c7 5158 htab = ppc_elf_hash_table (info);
663a1470
AM
5159 if (htab == NULL)
5160 return FALSE;
5161
b7fcf6f6
AM
5162 /* Make two passes through the relocs. First time check that tls
5163 relocs involved in setting up a tls_get_addr call are indeed
663a1470
AM
5164 followed by such a call. If they are not, don't do any tls
5165 optimization. On the second pass twiddle tls_mask flags to
5166 notify relocate_section that optimization can be done, and
5167 adjust got and plt refcounts. */
b7fcf6f6
AM
5168 for (pass = 0; pass < 2; ++pass)
5169 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5170 {
5171 Elf_Internal_Sym *locsyms = NULL;
0ffa91dd 5172 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
32af9f6e 5173 asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
7619e7c7 5174
b7fcf6f6
AM
5175 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5176 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5177 {
5178 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 5179 int expecting_tls_get_addr = 0;
252b5132 5180
b7fcf6f6
AM
5181 /* Read the relocations. */
5182 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
5183 info->keep_memory);
5184 if (relstart == NULL)
5185 return FALSE;
7619e7c7 5186
b7fcf6f6
AM
5187 relend = relstart + sec->reloc_count;
5188 for (rel = relstart; rel < relend; rel++)
5189 {
5190 enum elf_ppc_reloc_type r_type;
5191 unsigned long r_symndx;
5192 struct elf_link_hash_entry *h = NULL;
5193 char *tls_mask;
5194 char tls_set, tls_clear;
5195 bfd_boolean is_local;
b7fcf6f6
AM
5196 bfd_signed_vma *got_count;
5197
5198 r_symndx = ELF32_R_SYM (rel->r_info);
5199 if (r_symndx >= symtab_hdr->sh_info)
5200 {
5201 struct elf_link_hash_entry **sym_hashes;
7fce784e 5202
b7fcf6f6
AM
5203 sym_hashes = elf_sym_hashes (ibfd);
5204 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5205 while (h->root.type == bfd_link_hash_indirect
5206 || h->root.type == bfd_link_hash_warning)
5207 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5208 }
7619e7c7 5209
b7fcf6f6
AM
5210 is_local = FALSE;
5211 if (h == NULL
5212 || !h->def_dynamic)
5213 is_local = TRUE;
7619e7c7 5214
b7fcf6f6 5215 r_type = ELF32_R_TYPE (rel->r_info);
663a1470
AM
5216 /* If this section has old-style __tls_get_addr calls
5217 without marker relocs, then check that each
5218 __tls_get_addr call reloc is preceded by a reloc
5219 that conceivably belongs to the __tls_get_addr arg
5220 setup insn. If we don't find matching arg setup
5221 relocs, don't do any tls optimization. */
5222 if (pass == 0
5223 && sec->has_tls_get_addr_call
5224 && h != NULL
5225 && h == htab->tls_get_addr
5226 && !expecting_tls_get_addr
5227 && is_branch_reloc (r_type))
5228 {
25f53a85 5229 info->callbacks->minfo ("%H __tls_get_addr lost arg, "
663a1470
AM
5230 "TLS optimization disabled\n",
5231 ibfd, sec, rel->r_offset);
5232 if (elf_section_data (sec)->relocs != relstart)
5233 free (relstart);
5234 return TRUE;
5235 }
5236
5237 expecting_tls_get_addr = 0;
b7fcf6f6
AM
5238 switch (r_type)
5239 {
5240 case R_PPC_GOT_TLSLD16:
5241 case R_PPC_GOT_TLSLD16_LO:
5242 expecting_tls_get_addr = 1;
5243 /* Fall thru */
5244
5245 case R_PPC_GOT_TLSLD16_HI:
5246 case R_PPC_GOT_TLSLD16_HA:
5247 /* These relocs should never be against a symbol
5248 defined in a shared lib. Leave them alone if
5249 that turns out to be the case. */
5250 if (!is_local)
5251 continue;
5252
5253 /* LD -> LE */
5254 tls_set = 0;
5255 tls_clear = TLS_LD;
5256 break;
5257
5258 case R_PPC_GOT_TLSGD16:
5259 case R_PPC_GOT_TLSGD16_LO:
5260 expecting_tls_get_addr = 1;
5261 /* Fall thru */
5262
5263 case R_PPC_GOT_TLSGD16_HI:
5264 case R_PPC_GOT_TLSGD16_HA:
5265 if (is_local)
5266 /* GD -> LE */
5267 tls_set = 0;
5268 else
5269 /* GD -> IE */
5270 tls_set = TLS_TLS | TLS_TPRELGD;
5271 tls_clear = TLS_GD;
5272 break;
5273
5274 case R_PPC_GOT_TPREL16:
5275 case R_PPC_GOT_TPREL16_LO:
5276 case R_PPC_GOT_TPREL16_HI:
5277 case R_PPC_GOT_TPREL16_HA:
5278 if (is_local)
5279 {
5280 /* IE -> LE */
5281 tls_set = 0;
5282 tls_clear = TLS_TPREL;
5283 break;
5284 }
5285 else
5286 continue;
5287
32af9f6e
AM
5288 case R_PPC_TLSGD:
5289 case R_PPC_TLSLD:
5290 expecting_tls_get_addr = 2;
5291 tls_set = 0;
5292 tls_clear = 0;
5293 break;
5294
b7fcf6f6 5295 default:
25dbc73a 5296 continue;
b7fcf6f6 5297 }
25dbc73a 5298
b7fcf6f6
AM
5299 if (pass == 0)
5300 {
727fc41e 5301 if (!expecting_tls_get_addr
32af9f6e
AM
5302 || (expecting_tls_get_addr == 1
5303 && !sec->has_tls_get_addr_call))
b7fcf6f6 5304 continue;
25dbc73a 5305
3a71aa26
AM
5306 if (rel + 1 < relend
5307 && branch_reloc_hash_match (ibfd, rel + 1,
5308 htab->tls_get_addr))
5309 continue;
25dbc73a 5310
b7fcf6f6
AM
5311 /* Uh oh, we didn't find the expected call. We
5312 could just mark this symbol to exclude it
5313 from tls optimization but it's safer to skip
663a1470 5314 the entire optimization. */
25f53a85 5315 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM
5316 "TLS optimization disabled\n"),
5317 ibfd, sec, rel->r_offset);
5318 if (elf_section_data (sec)->relocs != relstart)
5319 free (relstart);
5320 return TRUE;
b7fcf6f6 5321 }
25dbc73a 5322
32af9f6e
AM
5323 if (expecting_tls_get_addr)
5324 {
5325 struct plt_entry *ent;
5326 bfd_vma addend = 0;
5327
5328 if (info->shared
5329 && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
5330 addend = rel[1].r_addend;
5331 ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
5332 got2, addend);
5333 if (ent != NULL && ent->plt.refcount > 0)
5334 ent->plt.refcount -= 1;
5335
5336 if (expecting_tls_get_addr == 2)
5337 continue;
5338 }
5339
b7fcf6f6
AM
5340 if (h != NULL)
5341 {
5342 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
5343 got_count = &h->got.refcount;
5344 }
5345 else
5346 {
b7fcf6f6 5347 bfd_signed_vma *lgot_refs;
e054468f 5348 struct plt_entry **local_plt;
b7fcf6f6 5349 char *lgot_masks;
25dbc73a 5350
b7fcf6f6
AM
5351 if (locsyms == NULL)
5352 {
5353 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5354 if (locsyms == NULL)
5355 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5356 symtab_hdr->sh_info,
5357 0, NULL, NULL, NULL);
5358 if (locsyms == NULL)
5359 {
5360 if (elf_section_data (sec)->relocs != relstart)
5361 free (relstart);
5362 return FALSE;
5363 }
5364 }
b7fcf6f6
AM
5365 lgot_refs = elf_local_got_refcounts (ibfd);
5366 if (lgot_refs == NULL)
5367 abort ();
e054468f
AM
5368 local_plt = (struct plt_entry **)
5369 (lgot_refs + symtab_hdr->sh_info);
5370 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
b7fcf6f6
AM
5371 tls_mask = &lgot_masks[r_symndx];
5372 got_count = &lgot_refs[r_symndx];
5373 }
25dbc73a 5374
b7fcf6f6
AM
5375 if (tls_set == 0)
5376 {
5377 /* We managed to get rid of a got entry. */
5378 if (*got_count > 0)
5379 *got_count -= 1;
5380 }
25dbc73a 5381
b7fcf6f6
AM
5382 *tls_mask |= tls_set;
5383 *tls_mask &= ~tls_clear;
5384 }
25dbc73a 5385
b7fcf6f6
AM
5386 if (elf_section_data (sec)->relocs != relstart)
5387 free (relstart);
5388 }
5389
5390 if (locsyms != NULL
5391 && (symtab_hdr->contents != (unsigned char *) locsyms))
5392 {
5393 if (!info->keep_memory)
5394 free (locsyms);
5395 else
5396 symtab_hdr->contents = (unsigned char *) locsyms;
5397 }
5398 }
25dbc73a
AM
5399 return TRUE;
5400}
5401\f
625af618
AM
5402/* Return true if we have dynamic relocs that apply to read-only sections. */
5403
5404static bfd_boolean
5405readonly_dynrelocs (struct elf_link_hash_entry *h)
5406{
6061a67d 5407 struct elf_dyn_relocs *p;
625af618
AM
5408
5409 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
5410 {
5411 asection *s = p->sec->output_section;
5412
5413 if (s != NULL
5414 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
5415 == (SEC_READONLY | SEC_ALLOC)))
5416 return TRUE;
5417 }
5418 return FALSE;
5419}
5420
25dbc73a
AM
5421/* Adjust a symbol defined by a dynamic object and referenced by a
5422 regular object. The current definition is in some section of the
5423 dynamic object, but we're not including those sections. We have to
5424 change the definition to something the rest of the link can
5425 understand. */
7fce784e 5426
25dbc73a
AM
5427static bfd_boolean
5428ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5429 struct elf_link_hash_entry *h)
5430{
5431 struct ppc_elf_link_hash_table *htab;
5432 asection *s;
7fce784e 5433
25dbc73a
AM
5434#ifdef DEBUG
5435 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
5436 h->root.root.string);
5437#endif
252b5132 5438
25dbc73a
AM
5439 /* Make sure we know what is going on here. */
5440 htab = ppc_elf_hash_table (info);
5441 BFD_ASSERT (htab->elf.dynobj != NULL
5442 && (h->needs_plt
91e21fb7 5443 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5444 || h->u.weakdef != NULL
5445 || (h->def_dynamic
5446 && h->ref_regular
5447 && !h->def_regular)));
252b5132 5448
25dbc73a
AM
5449 /* Deal with function syms. */
5450 if (h->type == STT_FUNC
e054468f 5451 || h->type == STT_GNU_IFUNC
25dbc73a
AM
5452 || h->needs_plt)
5453 {
5454 /* Clear procedure linkage table information for any symbol that
5455 won't need a .plt entry. */
a6aa5195
AM
5456 struct plt_entry *ent;
5457 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5458 if (ent->plt.refcount > 0)
5459 break;
5460 if (ent == NULL
e054468f
AM
5461 || (h->type != STT_GNU_IFUNC
5462 && (SYMBOL_CALLS_LOCAL (info, h)
5463 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5464 && h->root.type == bfd_link_hash_undefweak))))
252b5132 5465 {
25dbc73a 5466 /* A PLT entry is not required/allowed when:
252b5132 5467
25dbc73a
AM
5468 1. We are not using ld.so; because then the PLT entry
5469 can't be set up, so we can't use one. In this case,
5470 ppc_elf_adjust_dynamic_symbol won't even be called.
252b5132 5471
25dbc73a
AM
5472 2. GC has rendered the entry unused.
5473
5474 3. We know for certain that a call to this symbol
5475 will go to this object, or will remain undefined. */
a6aa5195 5476 h->plt.plist = NULL;
25dbc73a
AM
5477 h->needs_plt = 0;
5478 }
625af618
AM
5479 else
5480 {
25f23106
AM
5481 /* After adjust_dynamic_symbol, non_got_ref set in the
5482 non-shared case means that we have allocated space in
5483 .dynbss for the symbol and thus dyn_relocs for this
5484 symbol should be discarded.
625af618
AM
5485 If we get here we know we are making a PLT entry for this
5486 symbol, and in an executable we'd normally resolve
5487 relocations against this symbol to the PLT entry. Allow
5488 dynamic relocs if the reference is weak, and the dynamic
5489 relocs will not cause text relocation. */
5490 if (!h->ref_regular_nonweak
5491 && h->non_got_ref
25f23106 5492 && h->type != STT_GNU_IFUNC
625af618
AM
5493 && !htab->is_vxworks
5494 && !ppc_elf_hash_entry (h)->has_sda_refs
5495 && !readonly_dynrelocs (h))
5496 h->non_got_ref = 0;
5497 }
25dbc73a 5498 return TRUE;
252b5132 5499 }
25dbc73a 5500 else
a6aa5195 5501 h->plt.plist = NULL;
252b5132 5502
25dbc73a
AM
5503 /* If this is a weak symbol, and there is a real definition, the
5504 processor independent code will have arranged for us to see the
5505 real definition first, and we can just use the same value. */
5506 if (h->u.weakdef != NULL)
252b5132 5507 {
25dbc73a
AM
5508 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5509 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5510 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5511 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5512 if (ELIMINATE_COPY_RELOCS)
5513 h->non_got_ref = h->u.weakdef->non_got_ref;
5514 return TRUE;
5515 }
dc810e39 5516
25dbc73a
AM
5517 /* This is a reference to a symbol defined by a dynamic object which
5518 is not a function. */
252b5132 5519
25dbc73a
AM
5520 /* If we are creating a shared library, we must presume that the
5521 only references to the symbol are via the global offset table.
5522 For such cases we need not do anything here; the relocations will
5523 be handled correctly by relocate_section. */
5524 if (info->shared)
5525 return TRUE;
252b5132 5526
25dbc73a
AM
5527 /* If there are no references to this symbol that do not use the
5528 GOT, we don't need to generate a copy reloc. */
5529 if (!h->non_got_ref)
5530 return TRUE;
5531
cfd2c773
NS
5532 /* If we didn't find any dynamic relocs in read-only sections, then
5533 we'll be keeping the dynamic relocs and avoiding the copy reloc.
5534 We can't do this if there are any small data relocations. This
5535 doesn't work on VxWorks, where we can not have dynamic
5536 relocations (other than copy and jump slot relocations) in an
5537 executable. */
4dc4a9a5 5538 if (ELIMINATE_COPY_RELOCS
cfd2c773 5539 && !ppc_elf_hash_entry (h)->has_sda_refs
625af618
AM
5540 && !htab->is_vxworks
5541 && !h->def_regular
5542 && !readonly_dynrelocs (h))
25dbc73a 5543 {
625af618
AM
5544 h->non_got_ref = 0;
5545 return TRUE;
252b5132
RH
5546 }
5547
25dbc73a
AM
5548 /* We must allocate the symbol in our .dynbss section, which will
5549 become part of the .bss section of the executable. There will be
5550 an entry for this symbol in the .dynsym section. The dynamic
5551 object will contain position independent code, so all references
5552 from the dynamic object to this symbol will go through the global
5553 offset table. The dynamic linker will use the .dynsym entry to
5554 determine the address it must put in the global offset table, so
5555 both the dynamic object and the regular object will refer to the
5556 same memory location for the variable.
5557
4dc4a9a5
DJ
5558 Of course, if the symbol is referenced using SDAREL relocs, we
5559 must instead allocate it in .sbss. */
25dbc73a 5560
4dc4a9a5 5561 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5562 s = htab->dynsbss;
5563 else
5564 s = htab->dynbss;
5565 BFD_ASSERT (s != NULL);
5566
5567 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
5568 copy the initial value out of the dynamic object and into the
5569 runtime process image. We need to remember the offset into the
5570 .rela.bss section we are going to use. */
1d7e9d18 5571 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
25dbc73a
AM
5572 {
5573 asection *srel;
5574
4dc4a9a5 5575 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
5576 srel = htab->relsbss;
5577 else
5578 srel = htab->relbss;
5579 BFD_ASSERT (srel != NULL);
5580 srel->size += sizeof (Elf32_External_Rela);
5581 h->needs_copy = 1;
5582 }
7619e7c7 5583
027297b7 5584 return _bfd_elf_adjust_dynamic_copy (h, s);
25dbc73a
AM
5585}
5586\f
ac39eb42
AM
5587/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is
5588 xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
5589 specifying the addend on the plt relocation. For -fpic code, the sym
5590 is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
5591 xxxxxxxx.got2.plt_pic32.<callee>. */
0ba07910
AM
5592
5593static bfd_boolean
5594add_stub_sym (struct plt_entry *ent,
5595 struct elf_link_hash_entry *h,
ac39eb42 5596 struct bfd_link_info *info)
0ba07910
AM
5597{
5598 struct elf_link_hash_entry *sh;
5599 size_t len1, len2, len3;
5600 char *name;
ac39eb42
AM
5601 const char *stub;
5602 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
5603
a877a2b6 5604 if (info->shared)
ac39eb42
AM
5605 stub = ".plt_pic32.";
5606 else
5607 stub = ".plt_call32.";
0ba07910
AM
5608
5609 len1 = strlen (h->root.root.string);
ac39eb42 5610 len2 = strlen (stub);
0ba07910
AM
5611 len3 = 0;
5612 if (ent->sec)
5613 len3 = strlen (ent->sec->name);
ac39eb42 5614 name = bfd_malloc (len1 + len2 + len3 + 9);
0ba07910
AM
5615 if (name == NULL)
5616 return FALSE;
5617 sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
5618 if (ent->sec)
5619 memcpy (name + 8, ent->sec->name, len3);
ac39eb42
AM
5620 memcpy (name + 8 + len3, stub, len2);
5621 memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
0ba07910
AM
5622 sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
5623 if (sh == NULL)
5624 return FALSE;
5625 if (sh->root.type == bfd_link_hash_new)
5626 {
5627 sh->root.type = bfd_link_hash_defined;
5628 sh->root.u.def.section = htab->glink;
5629 sh->root.u.def.value = ent->glink_offset;
5630 sh->ref_regular = 1;
5631 sh->def_regular = 1;
5632 sh->ref_regular_nonweak = 1;
5633 sh->forced_local = 1;
5634 sh->non_elf = 0;
5635 }
5636 return TRUE;
5637}
5638
3b36f7e6
AM
5639/* Allocate NEED contiguous space in .got, and return the offset.
5640 Handles allocation of the got header when crossing 32k. */
5641
5642static bfd_vma
5643allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
5644{
5645 bfd_vma where;
4a3dc543 5646 unsigned int max_before_header;
3b36f7e6 5647
4a3dc543 5648 if (htab->plt_type == PLT_VXWORKS)
9d8504b1
PB
5649 {
5650 where = htab->got->size;
5651 htab->got->size += need;
5652 }
3b36f7e6
AM
5653 else
5654 {
4a3dc543
RS
5655 max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
5656 if (need <= htab->got_gap)
3b36f7e6 5657 {
4a3dc543
RS
5658 where = max_before_header - htab->got_gap;
5659 htab->got_gap -= need;
5660 }
5661 else
5662 {
5663 if (htab->got->size + need > max_before_header
5664 && htab->got->size <= max_before_header)
5665 {
5666 htab->got_gap = max_before_header - htab->got->size;
5667 htab->got->size = max_before_header + htab->got_header_size;
5668 }
5669 where = htab->got->size;
5670 htab->got->size += need;
3b36f7e6 5671 }
3b36f7e6
AM
5672 }
5673 return where;
5674}
5675
25dbc73a 5676/* Allocate space in associated reloc sections for dynamic relocs. */
252b5132 5677
b34976b6 5678static bfd_boolean
25dbc73a 5679allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
252b5132 5680{
25dbc73a
AM
5681 struct bfd_link_info *info = inf;
5682 struct ppc_elf_link_hash_entry *eh;
7619e7c7 5683 struct ppc_elf_link_hash_table *htab;
6061a67d 5684 struct elf_dyn_relocs *p;
252b5132 5685
25dbc73a 5686 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5687 return TRUE;
252b5132 5688
7619e7c7 5689 htab = ppc_elf_hash_table (info);
e054468f
AM
5690 if (htab->elf.dynamic_sections_created
5691 || h->type == STT_GNU_IFUNC)
252b5132 5692 {
a6aa5195
AM
5693 struct plt_entry *ent;
5694 bfd_boolean doneone = FALSE;
28e99bb6 5695 bfd_vma plt_offset = 0, glink_offset = 0;
e054468f 5696 bfd_boolean dyn;
28e99bb6 5697
a6aa5195
AM
5698 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5699 if (ent->plt.refcount > 0)
5700 {
5701 /* Make sure this symbol is output as a dynamic symbol. */
5702 if (h->dynindx == -1
e054468f
AM
5703 && !h->forced_local
5704 && !h->def_regular
5705 && htab->elf.dynamic_sections_created)
a6aa5195
AM
5706 {
5707 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5708 return FALSE;
5709 }
252b5132 5710
e054468f 5711 dyn = htab->elf.dynamic_sections_created;
a6aa5195 5712 if (info->shared
e054468f
AM
5713 || h->type == STT_GNU_IFUNC
5714 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
a6aa5195
AM
5715 {
5716 asection *s = htab->plt;
25f23106 5717 if (!dyn || h->dynindx == -1)
e054468f 5718 s = htab->iplt;
7619e7c7 5719
25f23106 5720 if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
a6aa5195 5721 {
a6aa5195 5722 if (!doneone)
28e99bb6
AM
5723 {
5724 plt_offset = s->size;
5725 s->size += 4;
5726 }
5727 ent->plt.offset = plt_offset;
d7128ce4 5728
a6aa5195 5729 s = htab->glink;
a877a2b6 5730 if (!doneone || info->shared)
28e99bb6
AM
5731 {
5732 glink_offset = s->size;
5733 s->size += GLINK_ENTRY_SIZE;
a7f2871e
AM
5734 if (h == htab->tls_get_addr
5735 && !htab->no_tls_get_addr_opt)
5736 s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
28e99bb6
AM
5737 }
5738 if (!doneone
5739 && !info->shared
625af618 5740 && h->def_dynamic
a6aa5195
AM
5741 && !h->def_regular)
5742 {
5743 h->root.u.def.section = s;
28e99bb6 5744 h->root.u.def.value = glink_offset;
a6aa5195 5745 }
28e99bb6 5746 ent->glink_offset = glink_offset;
0ba07910
AM
5747
5748 if (htab->emit_stub_syms
ac39eb42 5749 && !add_stub_sym (ent, h, info))
0ba07910 5750 return FALSE;
a6aa5195
AM
5751 }
5752 else
5753 {
a6aa5195
AM
5754 if (!doneone)
5755 {
28e99bb6
AM
5756 /* If this is the first .plt entry, make room
5757 for the special first entry. */
5758 if (s->size == 0)
9d8504b1 5759 s->size += htab->plt_initial_entry_size;
28e99bb6
AM
5760
5761 /* The PowerPC PLT is actually composed of two
5762 parts, the first part is 2 words (for a load
5763 and a jump), and then there is a remaining
5764 word available at the end. */
9d8504b1
PB
5765 plt_offset = (htab->plt_initial_entry_size
5766 + (htab->plt_slot_size
5767 * ((s->size
5768 - htab->plt_initial_entry_size)
5769 / htab->plt_entry_size)));
28e99bb6
AM
5770
5771 /* If this symbol is not defined in a regular
5772 file, and we are not generating a shared
5b914448 5773 library, then set the symbol to this location
de972ffa
AM
5774 in the .plt. This is to avoid text
5775 relocations, and is required to make
28e99bb6
AM
5776 function pointers compare as equal between
5777 the normal executable and the shared library. */
5778 if (! info->shared
625af618 5779 && h->def_dynamic
28e99bb6
AM
5780 && !h->def_regular)
5781 {
5782 h->root.u.def.section = s;
5783 h->root.u.def.value = plt_offset;
5784 }
5785
9d8504b1
PB
5786 /* Make room for this entry. */
5787 s->size += htab->plt_entry_size;
5788 /* After the 8192nd entry, room for two entries
5789 is allocated. */
4a3dc543 5790 if (htab->plt_type == PLT_OLD
9d8504b1
PB
5791 && (s->size - htab->plt_initial_entry_size)
5792 / htab->plt_entry_size
5793 > PLT_NUM_SINGLE_ENTRIES)
5794 s->size += htab->plt_entry_size;
a6aa5195 5795 }
28e99bb6 5796 ent->plt.offset = plt_offset;
a6aa5195 5797 }
25dbc73a 5798
a6aa5195
AM
5799 /* We also need to make an entry in the .rela.plt section. */
5800 if (!doneone)
5801 {
25f23106
AM
5802 if (!htab->elf.dynamic_sections_created
5803 || h->dynindx == -1)
e054468f
AM
5804 htab->reliplt->size += sizeof (Elf32_External_Rela);
5805 else
9d8504b1 5806 {
e054468f
AM
5807 htab->relplt->size += sizeof (Elf32_External_Rela);
5808
5809 if (htab->plt_type == PLT_VXWORKS)
9d8504b1 5810 {
e054468f
AM
5811 /* Allocate space for the unloaded relocations. */
5812 if (!info->shared
5813 && htab->elf.dynamic_sections_created)
9d8504b1 5814 {
e054468f
AM
5815 if (ent->plt.offset
5816 == (bfd_vma) htab->plt_initial_entry_size)
5817 {
5818 htab->srelplt2->size
5819 += (sizeof (Elf32_External_Rela)
5820 * VXWORKS_PLTRESOLVE_RELOCS);
5821 }
5822
9d8504b1 5823 htab->srelplt2->size
e054468f
AM
5824 += (sizeof (Elf32_External_Rela)
5825 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
9d8504b1
PB
5826 }
5827
e054468f
AM
5828 /* Every PLT entry has an associated GOT entry in
5829 .got.plt. */
5830 htab->sgotplt->size += 4;
9d8504b1 5831 }
9d8504b1 5832 }
a6aa5195
AM
5833 doneone = TRUE;
5834 }
5835 }
5836 else
5837 ent->plt.offset = (bfd_vma) -1;
a6aa5195 5838 }
2ce859a1
AM
5839 else
5840 ent->plt.offset = (bfd_vma) -1;
5841
5842 if (!doneone)
5843 {
5844 h->plt.plist = NULL;
5845 h->needs_plt = 0;
5846 }
25dbc73a
AM
5847 }
5848 else
5849 {
a6aa5195 5850 h->plt.plist = NULL;
25dbc73a
AM
5851 h->needs_plt = 0;
5852 }
5853
5854 eh = (struct ppc_elf_link_hash_entry *) h;
5855 if (eh->elf.got.refcount > 0)
5856 {
d6e14abc
AM
5857 bfd_boolean dyn;
5858 unsigned int need;
5859
25dbc73a
AM
5860 /* Make sure this symbol is output as a dynamic symbol. */
5861 if (eh->elf.dynindx == -1
b099ab9f 5862 && !eh->elf.forced_local
25f23106 5863 && eh->elf.type != STT_GNU_IFUNC
b099ab9f 5864 && htab->elf.dynamic_sections_created)
25dbc73a
AM
5865 {
5866 if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
b34976b6 5867 return FALSE;
25dbc73a 5868 }
252b5132 5869
d6e14abc
AM
5870 need = 0;
5871 if ((eh->tls_mask & TLS_TLS) != 0)
25dbc73a 5872 {
d6e14abc 5873 if ((eh->tls_mask & TLS_LD) != 0)
252b5132 5874 {
d6e14abc
AM
5875 if (!eh->elf.def_dynamic)
5876 /* We'll just use htab->tlsld_got.offset. This should
5877 always be the case. It's a little odd if we have
5878 a local dynamic reloc against a non-local symbol. */
5879 htab->tlsld_got.refcount += 1;
5880 else
3b36f7e6 5881 need += 8;
252b5132 5882 }
d6e14abc
AM
5883 if ((eh->tls_mask & TLS_GD) != 0)
5884 need += 8;
5885 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
5886 need += 4;
5887 if ((eh->tls_mask & TLS_DTPREL) != 0)
3b36f7e6 5888 need += 4;
d6e14abc
AM
5889 }
5890 else
5891 need += 4;
5892 if (need == 0)
5893 eh->elf.got.offset = (bfd_vma) -1;
5894 else
5895 {
3b36f7e6 5896 eh->elf.got.offset = allocate_got (htab, need);
25dbc73a
AM
5897 dyn = htab->elf.dynamic_sections_created;
5898 if ((info->shared
5899 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
5900 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
5901 || eh->elf.root.type != bfd_link_hash_undefweak))
252b5132 5902 {
91e21fb7 5903 asection *rsec = htab->relgot;
3b36f7e6
AM
5904 /* All the entries we allocated need relocs.
5905 Except LD only needs one. */
d6e14abc
AM
5906 if ((eh->tls_mask & TLS_LD) != 0
5907 && eh->elf.def_dynamic)
3b36f7e6 5908 need -= 4;
25f23106 5909 rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
252b5132 5910 }
25dbc73a
AM
5911 }
5912 }
5913 else
5914 eh->elf.got.offset = (bfd_vma) -1;
252b5132 5915
b099ab9f 5916 if (eh->dyn_relocs == NULL
de972ffa 5917 || !htab->elf.dynamic_sections_created)
25dbc73a 5918 return TRUE;
252b5132 5919
25dbc73a
AM
5920 /* In the shared -Bsymbolic case, discard space allocated for
5921 dynamic pc-relative relocs against symbols which turn out to be
5922 defined in regular objects. For the normal shared case, discard
5923 space for relocs that have become local due to symbol visibility
5924 changes. */
5925
5926 if (info->shared)
5927 {
5928 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 5929 or certain REL relocs (see must_be_dyn_reloc) that can be
25dbc73a
AM
5930 generated via assembly. We want calls to protected symbols to
5931 resolve directly to the function rather than going via the plt.
5932 If people want function pointer comparisons to work as expected
5933 then they should avoid writing weird assembly. */
5934 if (SYMBOL_CALLS_LOCAL (info, h))
5935 {
6061a67d 5936 struct elf_dyn_relocs **pp;
25dbc73a
AM
5937
5938 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
252b5132 5939 {
25dbc73a
AM
5940 p->count -= p->pc_count;
5941 p->pc_count = 0;
5942 if (p->count == 0)
5943 *pp = p->next;
5944 else
5945 pp = &p->next;
252b5132 5946 }
25dbc73a 5947 }
252b5132 5948
3348747a
NS
5949 if (htab->is_vxworks)
5950 {
6061a67d 5951 struct elf_dyn_relocs **pp;
3348747a
NS
5952
5953 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5954 {
5955 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
5956 *pp = p->next;
5957 else
5958 pp = &p->next;
5959 }
5960 }
5961
89200bf8
AM
5962 /* Discard relocs on undefined symbols that must be local. */
5963 if (eh->dyn_relocs != NULL
5964 && h->root.type == bfd_link_hash_undefined
5965 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
5966 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
5967 eh->dyn_relocs = NULL;
5968
25dbc73a
AM
5969 /* Also discard relocs on undefined weak syms with non-default
5970 visibility. */
cab87ef9
AM
5971 if (eh->dyn_relocs != NULL
5972 && h->root.type == bfd_link_hash_undefweak)
25dbc73a 5973 {
dfbb6ac9
AM
5974 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
5975 eh->dyn_relocs = NULL;
5976
5977 /* Make sure undefined weak symbols are output as a dynamic
5978 symbol in PIEs. */
5979 else if (h->dynindx == -1
e054468f
AM
5980 && !h->forced_local
5981 && !h->def_regular)
dfbb6ac9
AM
5982 {
5983 if (! bfd_elf_link_record_dynamic_symbol (info, h))
5984 return FALSE;
5985 }
25dbc73a
AM
5986 }
5987 }
5988 else if (ELIMINATE_COPY_RELOCS)
5989 {
5990 /* For the non-shared case, discard space for relocs against
5991 symbols which turn out to need copy relocs or are not
5992 dynamic. */
7619e7c7 5993
25dbc73a 5994 if (!h->non_got_ref
25dbc73a
AM
5995 && !h->def_regular)
5996 {
5997 /* Make sure this symbol is output as a dynamic symbol.
5998 Undefined weak syms won't yet be marked as dynamic. */
5999 if (h->dynindx == -1
25f23106 6000 && !h->forced_local)
25dbc73a
AM
6001 {
6002 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6003 return FALSE;
6004 }
7619e7c7 6005
25dbc73a
AM
6006 /* If that succeeded, we know we'll be keeping all the
6007 relocs. */
6008 if (h->dynindx != -1)
6009 goto keep;
6010 }
252b5132 6011
25dbc73a 6012 eh->dyn_relocs = NULL;
252b5132 6013
25dbc73a
AM
6014 keep: ;
6015 }
252b5132 6016
25dbc73a
AM
6017 /* Finally, allocate space. */
6018 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6019 {
6020 asection *sreloc = elf_section_data (p->sec)->sreloc;
25f23106
AM
6021 if (!htab->elf.dynamic_sections_created)
6022 sreloc = htab->reliplt;
25dbc73a
AM
6023 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6024 }
252b5132 6025
25dbc73a
AM
6026 return TRUE;
6027}
7619e7c7 6028
625af618
AM
6029/* Set DF_TEXTREL if we find any dynamic relocs that apply to
6030 read-only sections. */
7619e7c7 6031
25dbc73a 6032static bfd_boolean
625af618 6033maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
25dbc73a 6034{
25dbc73a
AM
6035 if (h->root.type == bfd_link_hash_indirect)
6036 return TRUE;
252b5132 6037
625af618 6038 if (readonly_dynrelocs (h))
25dbc73a 6039 {
625af618 6040 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
ee05f2fe 6041
625af618
AM
6042 /* Not an error, just cut short the traversal. */
6043 return FALSE;
25dbc73a
AM
6044 }
6045 return TRUE;
6046}
6047
6177242a
AM
6048static const unsigned char glink_eh_frame_cie[] =
6049{
6050 0, 0, 0, 16, /* length. */
6051 0, 0, 0, 0, /* id. */
6052 1, /* CIE version. */
6053 'z', 'R', 0, /* Augmentation string. */
6054 4, /* Code alignment. */
6055 0x7c, /* Data alignment. */
6056 65, /* RA reg. */
6057 1, /* Augmentation size. */
6058 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
6059 DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */
6060};
6061
25dbc73a
AM
6062/* Set the sizes of the dynamic sections. */
6063
6064static bfd_boolean
6065ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6066 struct bfd_link_info *info)
6067{
6068 struct ppc_elf_link_hash_table *htab;
6069 asection *s;
6070 bfd_boolean relocs;
6071 bfd *ibfd;
7fce784e 6072
252b5132 6073#ifdef DEBUG
25dbc73a 6074 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
252b5132 6075#endif
252b5132 6076
25dbc73a
AM
6077 htab = ppc_elf_hash_table (info);
6078 BFD_ASSERT (htab->elf.dynobj != NULL);
252b5132 6079
25dbc73a
AM
6080 if (elf_hash_table (info)->dynamic_sections_created)
6081 {
6082 /* Set the contents of the .interp section to the interpreter. */
6083 if (info->executable)
6084 {
3d4d4302 6085 s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
25dbc73a
AM
6086 BFD_ASSERT (s != NULL);
6087 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6088 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6089 }
6090 }
252b5132 6091
4a3dc543 6092 if (htab->plt_type == PLT_OLD)
d7128ce4 6093 htab->got_header_size = 16;
4a3dc543 6094 else if (htab->plt_type == PLT_NEW)
d7128ce4 6095 htab->got_header_size = 12;
252b5132 6096
25dbc73a
AM
6097 /* Set up .got offsets for local syms, and space for local dynamic
6098 relocs. */
6099 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6100 {
6101 bfd_signed_vma *local_got;
6102 bfd_signed_vma *end_local_got;
e054468f
AM
6103 struct plt_entry **local_plt;
6104 struct plt_entry **end_local_plt;
25dbc73a
AM
6105 char *lgot_masks;
6106 bfd_size_type locsymcount;
6107 Elf_Internal_Shdr *symtab_hdr;
7fce784e 6108
0c8d6e5c 6109 if (!is_ppc_elf (ibfd))
25dbc73a 6110 continue;
7fce784e 6111
25dbc73a
AM
6112 for (s = ibfd->sections; s != NULL; s = s->next)
6113 {
6061a67d 6114 struct elf_dyn_relocs *p;
252b5132 6115
6061a67d 6116 for (p = ((struct elf_dyn_relocs *)
25dbc73a
AM
6117 elf_section_data (s)->local_dynrel);
6118 p != NULL;
6119 p = p->next)
6120 {
6121 if (!bfd_is_abs_section (p->sec)
6122 && bfd_is_abs_section (p->sec->output_section))
6123 {
6124 /* Input section has been discarded, either because
6125 it is a copy of a linkonce section or due to
6126 linker script /DISCARD/, so we'll be discarding
6127 the relocs too. */
7fce784e 6128 }
3348747a
NS
6129 else if (htab->is_vxworks
6130 && strcmp (p->sec->output_section->name,
6131 ".tls_vars") == 0)
6132 {
6133 /* Relocations in vxworks .tls_vars sections are
6134 handled specially by the loader. */
6135 }
25dbc73a 6136 else if (p->count != 0)
7fce784e 6137 {
25f23106
AM
6138 asection *sreloc = elf_section_data (p->sec)->sreloc;
6139 if (!htab->elf.dynamic_sections_created)
6140 sreloc = htab->reliplt;
6141 sreloc->size += p->count * sizeof (Elf32_External_Rela);
25dbc73a
AM
6142 if ((p->sec->output_section->flags
6143 & (SEC_READONLY | SEC_ALLOC))
6144 == (SEC_READONLY | SEC_ALLOC))
6145 info->flags |= DF_TEXTREL;
7fce784e 6146 }
252b5132 6147 }
252b5132 6148 }
252b5132 6149
25dbc73a
AM
6150 local_got = elf_local_got_refcounts (ibfd);
6151 if (!local_got)
6152 continue;
252b5132 6153
0ffa91dd 6154 symtab_hdr = &elf_symtab_hdr (ibfd);
25dbc73a
AM
6155 locsymcount = symtab_hdr->sh_info;
6156 end_local_got = local_got + locsymcount;
e054468f
AM
6157 local_plt = (struct plt_entry **) end_local_got;
6158 end_local_plt = local_plt + locsymcount;
6159 lgot_masks = (char *) end_local_plt;
91d6fa6a 6160
25dbc73a
AM
6161 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
6162 if (*local_got > 0)
6163 {
d6e14abc
AM
6164 unsigned int need = 0;
6165 if ((*lgot_masks & TLS_TLS) != 0)
25dbc73a 6166 {
d6e14abc
AM
6167 if ((*lgot_masks & TLS_GD) != 0)
6168 need += 8;
6169 if ((*lgot_masks & TLS_LD) != 0)
6170 htab->tlsld_got.refcount += 1;
6171 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
6172 need += 4;
6173 if ((*lgot_masks & TLS_DTPREL) != 0)
6174 need += 4;
25dbc73a 6175 }
d6e14abc
AM
6176 else
6177 need += 4;
6178 if (need == 0)
6179 *local_got = (bfd_vma) -1;
25dbc73a
AM
6180 else
6181 {
3b36f7e6 6182 *local_got = allocate_got (htab, need);
25dbc73a 6183 if (info->shared)
3b36f7e6
AM
6184 htab->relgot->size += (need
6185 * (sizeof (Elf32_External_Rela) / 4));
25dbc73a
AM
6186 }
6187 }
6188 else
6189 *local_got = (bfd_vma) -1;
e054468f
AM
6190
6191 if (htab->is_vxworks)
6192 continue;
6193
6194 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
6195 for (; local_plt < end_local_plt; ++local_plt)
6196 {
6197 struct plt_entry *ent;
6198 bfd_boolean doneone = FALSE;
6199 bfd_vma plt_offset = 0, glink_offset = 0;
6200
6201 for (ent = *local_plt; ent != NULL; ent = ent->next)
6202 if (ent->plt.refcount > 0)
6203 {
91d6fa6a 6204 s = htab->iplt;
e054468f
AM
6205
6206 if (!doneone)
6207 {
6208 plt_offset = s->size;
6209 s->size += 4;
6210 }
6211 ent->plt.offset = plt_offset;
6212
6213 s = htab->glink;
a877a2b6 6214 if (!doneone || info->shared)
e054468f
AM
6215 {
6216 glink_offset = s->size;
6217 s->size += GLINK_ENTRY_SIZE;
6218 }
6219 ent->glink_offset = glink_offset;
6220
6221 if (!doneone)
6222 {
25f23106 6223 htab->reliplt->size += sizeof (Elf32_External_Rela);
e054468f
AM
6224 doneone = TRUE;
6225 }
6226 }
6227 else
6228 ent->plt.offset = (bfd_vma) -1;
6229 }
25dbc73a 6230 }
252b5132 6231
b7fcf6f6
AM
6232 /* Allocate space for global sym dynamic relocs. */
6233 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
6234
3b36f7e6
AM
6235 if (htab->tlsld_got.refcount > 0)
6236 {
6237 htab->tlsld_got.offset = allocate_got (htab, 8);
6238 if (info->shared)
6239 htab->relgot->size += sizeof (Elf32_External_Rela);
6240 }
6241 else
6242 htab->tlsld_got.offset = (bfd_vma) -1;
6243
4a3dc543 6244 if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
3b36f7e6
AM
6245 {
6246 unsigned int g_o_t = 32768;
6247
4d962050
AM
6248 /* If we haven't allocated the header, do so now. When we get here,
6249 for old plt/got the got size will be 0 to 32764 (not allocated),
6250 or 32780 to 65536 (header allocated). For new plt/got, the
6251 corresponding ranges are 0 to 32768 and 32780 to 65536. */
3b36f7e6
AM
6252 if (htab->got->size <= 32768)
6253 {
6254 g_o_t = htab->got->size;
4a3dc543 6255 if (htab->plt_type == PLT_OLD)
4d962050 6256 g_o_t += 4;
3b36f7e6
AM
6257 htab->got->size += htab->got_header_size;
6258 }
3b36f7e6
AM
6259
6260 htab->elf.hgot->root.u.def.value = g_o_t;
6261 }
bd6c6e2b
AM
6262 if (info->shared)
6263 {
6264 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
6265 if (sda != NULL
6266 && !(sda->root.type == bfd_link_hash_defined
6267 || sda->root.type == bfd_link_hash_defweak))
6268 {
6269 sda->root.type = bfd_link_hash_defined;
6270 sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
6271 sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
6272 }
6273 }
3b36f7e6 6274
e054468f
AM
6275 if (htab->glink != NULL
6276 && htab->glink->size != 0
6277 && htab->elf.dynamic_sections_created)
d7128ce4
AM
6278 {
6279 htab->glink_pltresolve = htab->glink->size;
86b9da88
AM
6280 /* Space for the branch table. */
6281 htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
6282 /* Pad out to align the start of PLTresolve. */
6283 htab->glink->size += -htab->glink->size & 15;
d7128ce4 6284 htab->glink->size += GLINK_PLTRESOLVE;
0ba07910
AM
6285
6286 if (htab->emit_stub_syms)
6287 {
6288 struct elf_link_hash_entry *sh;
6289 sh = elf_link_hash_lookup (&htab->elf, "__glink",
6290 TRUE, FALSE, FALSE);
6291 if (sh == NULL)
6292 return FALSE;
6293 if (sh->root.type == bfd_link_hash_new)
6294 {
6295 sh->root.type = bfd_link_hash_defined;
6296 sh->root.u.def.section = htab->glink;
6297 sh->root.u.def.value = htab->glink_pltresolve;
6298 sh->ref_regular = 1;
6299 sh->def_regular = 1;
6300 sh->ref_regular_nonweak = 1;
6301 sh->forced_local = 1;
6302 sh->non_elf = 0;
6303 }
6304 sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
6305 TRUE, FALSE, FALSE);
6306 if (sh == NULL)
6307 return FALSE;
6308 if (sh->root.type == bfd_link_hash_new)
6309 {
6310 sh->root.type = bfd_link_hash_defined;
6311 sh->root.u.def.section = htab->glink;
6312 sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
6313 sh->ref_regular = 1;
6314 sh->def_regular = 1;
6315 sh->ref_regular_nonweak = 1;
6316 sh->forced_local = 1;
6317 sh->non_elf = 0;
6318 }
6319 }
d7128ce4
AM
6320 }
6321
6177242a
AM
6322 if (htab->glink != NULL
6323 && htab->glink->size != 0
6324 && htab->glink_eh_frame != NULL
9a2a56cc
AM
6325 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
6326 && _bfd_elf_eh_frame_present (info))
6177242a
AM
6327 {
6328 s = htab->glink_eh_frame;
6329 s->size = sizeof (glink_eh_frame_cie) + 20;
6330 if (info->shared)
6331 {
6332 s->size += 4;
6333 if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
6334 s->size += 4;
6335 }
6336 }
6337
25dbc73a
AM
6338 /* We've now determined the sizes of the various dynamic sections.
6339 Allocate memory for them. */
6340 relocs = FALSE;
6341 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
252b5132 6342 {
9d8504b1
PB
6343 bfd_boolean strip_section = TRUE;
6344
25dbc73a
AM
6345 if ((s->flags & SEC_LINKER_CREATED) == 0)
6346 continue;
252b5132 6347
25dbc73a 6348 if (s == htab->plt
e054468f 6349 || s == htab->got)
25dbc73a 6350 {
9d8504b1
PB
6351 /* We'd like to strip these sections if they aren't needed, but if
6352 we've exported dynamic symbols from them we must leave them.
6353 It's too late to tell BFD to get rid of the symbols. */
e054468f 6354 if (htab->elf.hplt != NULL)
9d8504b1 6355 strip_section = FALSE;
25dbc73a
AM
6356 /* Strip this section if we don't need it; see the
6357 comment below. */
6358 }
e054468f
AM
6359 else if (s == htab->iplt
6360 || s == htab->glink
6177242a 6361 || s == htab->glink_eh_frame
e054468f
AM
6362 || s == htab->sgotplt
6363 || s == htab->sbss
6364 || s == htab->dynbss
6365 || s == htab->dynsbss
6366 || s == htab->sdata[0].section
c9a2f333 6367 || s == htab->sdata[1].section)
25dbc73a 6368 {
c9a2f333 6369 /* Strip these too. */
25dbc73a 6370 }
a0f49396
NC
6371 else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
6372 ".rela"))
25dbc73a 6373 {
c456f082 6374 if (s->size != 0)
25dbc73a
AM
6375 {
6376 /* Remember whether there are any relocation sections. */
6377 relocs = TRUE;
252b5132 6378
25dbc73a
AM
6379 /* We use the reloc_count field as a counter if we need
6380 to copy relocs into the output file. */
6381 s->reloc_count = 0;
252b5132
RH
6382 }
6383 }
25dbc73a
AM
6384 else
6385 {
6386 /* It's not one of our sections, so don't allocate space. */
6387 continue;
6388 }
252b5132 6389
9d8504b1 6390 if (s->size == 0 && strip_section)
25dbc73a 6391 {
c456f082
AM
6392 /* If we don't need this section, strip it from the
6393 output file. This is mostly to handle .rela.bss and
6394 .rela.plt. We must create both sections in
6395 create_dynamic_sections, because they must be created
6396 before the linker maps input sections to output
6397 sections. The linker does that before
6398 adjust_dynamic_symbol is called, and it is that
6399 function which decides whether anything needs to go
6400 into these sections. */
8423293d 6401 s->flags |= SEC_EXCLUDE;
25dbc73a
AM
6402 continue;
6403 }
7fce784e 6404
d7128ce4 6405 if ((s->flags & SEC_HAS_CONTENTS) == 0)
644285ef
AM
6406 continue;
6407
25dbc73a
AM
6408 /* Allocate memory for the section contents. */
6409 s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
6410 if (s->contents == NULL)
6411 return FALSE;
6412 }
252b5132 6413
25dbc73a 6414 if (htab->elf.dynamic_sections_created)
7619e7c7 6415 {
25dbc73a
AM
6416 /* Add some entries to the .dynamic section. We fill in the
6417 values later, in ppc_elf_finish_dynamic_sections, but we
6418 must add the entries now so that we get the correct size for
6419 the .dynamic section. The DT_DEBUG entry is filled in by the
6420 dynamic linker and used by the debugger. */
6421#define add_dynamic_entry(TAG, VAL) \
6422 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
252b5132 6423
25dbc73a 6424 if (info->executable)
7619e7c7 6425 {
25dbc73a
AM
6426 if (!add_dynamic_entry (DT_DEBUG, 0))
6427 return FALSE;
7619e7c7
AM
6428 }
6429
25dbc73a 6430 if (htab->plt != NULL && htab->plt->size != 0)
7619e7c7 6431 {
25dbc73a
AM
6432 if (!add_dynamic_entry (DT_PLTGOT, 0)
6433 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6434 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
6435 || !add_dynamic_entry (DT_JMPREL, 0))
6436 return FALSE;
6437 }
7619e7c7 6438
d7128ce4
AM
6439 if (htab->glink != NULL && htab->glink->size != 0)
6440 {
1fe44d79 6441 if (!add_dynamic_entry (DT_PPC_GOT, 0))
d7128ce4 6442 return FALSE;
a7f2871e
AM
6443 if (!htab->no_tls_get_addr_opt
6444 && htab->tls_get_addr != NULL
6445 && htab->tls_get_addr->plt.plist != NULL
6446 && !add_dynamic_entry (DT_PPC_TLSOPT, 0))
6447 return FALSE;
d7128ce4
AM
6448 }
6449
25dbc73a
AM
6450 if (relocs)
6451 {
6452 if (!add_dynamic_entry (DT_RELA, 0)
6453 || !add_dynamic_entry (DT_RELASZ, 0)
6454 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
6455 return FALSE;
6456 }
7619e7c7 6457
25dbc73a
AM
6458 /* If any dynamic relocs apply to a read-only section, then we
6459 need a DT_TEXTREL entry. */
6460 if ((info->flags & DF_TEXTREL) == 0)
625af618 6461 elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
25dbc73a 6462 info);
7619e7c7 6463
25dbc73a
AM
6464 if ((info->flags & DF_TEXTREL) != 0)
6465 {
6466 if (!add_dynamic_entry (DT_TEXTREL, 0))
6467 return FALSE;
7619e7c7 6468 }
7a2b07ff
NS
6469 if (htab->is_vxworks
6470 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
6471 return FALSE;
6472 }
25dbc73a
AM
6473#undef add_dynamic_entry
6474
7e01508c
AM
6475 if (htab->glink_eh_frame != NULL
6476 && htab->glink_eh_frame->contents != NULL)
6477 {
6478 unsigned char *p = htab->glink_eh_frame->contents;
6479 bfd_vma val;
6480
6481 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
6482 /* CIE length (rewrite in case little-endian). */
6483 bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
6484 p += sizeof (glink_eh_frame_cie);
6485 /* FDE length. */
6486 val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
6487 bfd_put_32 (htab->elf.dynobj, val, p);
6488 p += 4;
6489 /* CIE pointer. */
6490 val = p - htab->glink_eh_frame->contents;
6491 bfd_put_32 (htab->elf.dynobj, val, p);
6492 p += 4;
6493 /* Offset to .glink. Set later. */
6494 p += 4;
6495 /* .glink size. */
6496 bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
6497 p += 4;
6498 /* Augmentation. */
6499 p += 1;
6500
6501 if (info->shared
6502 && htab->elf.dynamic_sections_created)
6503 {
6504 bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
6505 if (adv < 64)
6506 *p++ = DW_CFA_advance_loc + adv;
6507 else if (adv < 256)
6508 {
6509 *p++ = DW_CFA_advance_loc1;
6510 *p++ = adv;
6511 }
6512 else if (adv < 65536)
6513 {
6514 *p++ = DW_CFA_advance_loc2;
6515 bfd_put_16 (htab->elf.dynobj, adv, p);
6516 p += 2;
6517 }
6518 else
6519 {
6520 *p++ = DW_CFA_advance_loc4;
6521 bfd_put_32 (htab->elf.dynobj, adv, p);
6522 p += 4;
6523 }
6524 *p++ = DW_CFA_register;
6525 *p++ = 65;
6526 p++;
6527 *p++ = DW_CFA_advance_loc + 4;
6528 *p++ = DW_CFA_restore_extended;
6529 *p++ = 65;
6530 }
6531 BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
6532 == htab->glink_eh_frame->size);
6533 }
6534
7619e7c7
AM
6535 return TRUE;
6536}
0eb4a168
AM
6537
6538/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
6539
6540static bfd_boolean
6541ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
6542{
6543 if (h->plt.plist != NULL
6544 && !h->def_regular
6545 && (!h->pointer_equality_needed
6546 || !h->ref_regular_nonweak))
6547 return FALSE;
6548
6549 return _bfd_elf_hash_symbol (h);
6550}
25dbc73a
AM
6551\f
6552#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
6553
01017ef8
NS
6554/* Relaxation trampolines. r12 is available for clobbering (r11, is
6555 used for some functions that are allowed to break the ABI). */
25dbc73a
AM
6556static const int shared_stub_entry[] =
6557 {
6558 0x7c0802a6, /* mflr 0 */
6559 0x429f0005, /* bcl 20, 31, .Lxxx */
01017ef8
NS
6560 0x7d8802a6, /* mflr 12 */
6561 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
6562 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
25dbc73a 6563 0x7c0803a6, /* mtlr 0 */
01017ef8 6564 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6565 0x4e800420, /* bctr */
6566 };
6567
6568static const int stub_entry[] =
6569 {
01017ef8
NS
6570 0x3d800000, /* lis 12,xxx@ha */
6571 0x398c0000, /* addi 12,12,xxx@l */
6572 0x7d8903a6, /* mtctr 12 */
25dbc73a
AM
6573 0x4e800420, /* bctr */
6574 };
6575
6576static bfd_boolean
6577ppc_elf_relax_section (bfd *abfd,
6578 asection *isec,
6579 struct bfd_link_info *link_info,
6580 bfd_boolean *again)
6581{
6582 struct one_fixup
6583 {
6584 struct one_fixup *next;
6585 asection *tsec;
01017ef8
NS
6586 /* Final link, can use the symbol offset. For a
6587 relocatable link we use the symbol's index. */
25dbc73a
AM
6588 bfd_vma toff;
6589 bfd_vma trampoff;
6590 };
7619e7c7 6591
25dbc73a
AM
6592 Elf_Internal_Shdr *symtab_hdr;
6593 bfd_byte *contents = NULL;
6594 Elf_Internal_Sym *isymbuf = NULL;
6595 Elf_Internal_Rela *internal_relocs = NULL;
6596 Elf_Internal_Rela *irel, *irelend;
6597 struct one_fixup *fixups = NULL;
9bc4e62b 6598 unsigned changes = 0;
d7128ce4 6599 struct ppc_elf_link_hash_table *htab;
25dbc73a 6600 bfd_size_type trampoff;
a6aa5195 6601 asection *got2;
50248c89 6602 bfd_boolean maybe_pasted;
7619e7c7 6603
25dbc73a 6604 *again = FALSE;
7619e7c7 6605
c87b5a93 6606 /* Nothing to do if there are no relocations, and no need to do
a8ad78a7 6607 anything with non-alloc or non-code sections. */
c87b5a93 6608 if ((isec->flags & SEC_ALLOC) == 0
a8ad78a7 6609 || (isec->flags & SEC_CODE) == 0
c87b5a93
AM
6610 || (isec->flags & SEC_RELOC) == 0
6611 || isec->reloc_count == 0)
25dbc73a 6612 return TRUE;
7619e7c7 6613
c8a1f254
NS
6614 /* We cannot represent the required PIC relocs in the output, so don't
6615 do anything. The linker doesn't support mixing -shared and -r
6616 anyway. */
6617 if (link_info->relocatable && link_info->shared)
6618 return TRUE;
5b914448 6619
25dbc73a 6620 trampoff = (isec->size + 3) & (bfd_vma) -4;
50248c89
AM
6621 maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
6622 || strcmp (isec->output_section->name, ".fini") == 0);
25dbc73a 6623 /* Space for a branch around any trampolines. */
50248c89
AM
6624 if (maybe_pasted)
6625 trampoff += 4;
7619e7c7 6626
0ffa91dd 6627 symtab_hdr = &elf_symtab_hdr (abfd);
7619e7c7 6628
25dbc73a
AM
6629 /* Get a copy of the native relocations. */
6630 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
6631 link_info->keep_memory);
6632 if (internal_relocs == NULL)
6633 goto error_return;
7619e7c7 6634
d7128ce4 6635 htab = ppc_elf_hash_table (link_info);
a6aa5195 6636 got2 = bfd_get_section_by_name (abfd, ".got2");
7619e7c7 6637
a6aa5195 6638 irelend = internal_relocs + isec->reloc_count;
25dbc73a 6639 for (irel = internal_relocs; irel < irelend; irel++)
7619e7c7 6640 {
25dbc73a 6641 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
91d6fa6a 6642 bfd_vma toff, roff;
25dbc73a
AM
6643 asection *tsec;
6644 struct one_fixup *f;
6645 size_t insn_offset = 0;
6646 bfd_vma max_branch_offset, val;
6647 bfd_byte *hit_addr;
6648 unsigned long t0;
de972ffa 6649 struct elf_link_hash_entry *h;
a9585d22 6650 struct plt_entry **plist;
25dbc73a 6651 unsigned char sym_type;
7619e7c7 6652
25dbc73a
AM
6653 switch (r_type)
6654 {
6655 case R_PPC_REL24:
6656 case R_PPC_LOCAL24PC:
6657 case R_PPC_PLTREL24:
6658 max_branch_offset = 1 << 25;
6659 break;
7619e7c7 6660
25dbc73a
AM
6661 case R_PPC_REL14:
6662 case R_PPC_REL14_BRTAKEN:
6663 case R_PPC_REL14_BRNTAKEN:
6664 max_branch_offset = 1 << 15;
6665 break;
7619e7c7 6666
25dbc73a
AM
6667 default:
6668 continue;
6669 }
7619e7c7 6670
25dbc73a 6671 /* Get the value of the symbol referred to by the reloc. */
de972ffa 6672 h = NULL;
25dbc73a
AM
6673 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
6674 {
6675 /* A local symbol. */
6676 Elf_Internal_Sym *isym;
7fce784e 6677
25dbc73a
AM
6678 /* Read this BFD's local symbols. */
6679 if (isymbuf == NULL)
6680 {
6681 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
6682 if (isymbuf == NULL)
6683 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
6684 symtab_hdr->sh_info, 0,
6685 NULL, NULL, NULL);
6686 if (isymbuf == 0)
6687 goto error_return;
6688 }
6689 isym = isymbuf + ELF32_R_SYM (irel->r_info);
6690 if (isym->st_shndx == SHN_UNDEF)
c8a1f254 6691 tsec = bfd_und_section_ptr;
25dbc73a
AM
6692 else if (isym->st_shndx == SHN_ABS)
6693 tsec = bfd_abs_section_ptr;
6694 else if (isym->st_shndx == SHN_COMMON)
6695 tsec = bfd_com_section_ptr;
6696 else
6697 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
7fce784e 6698
25dbc73a
AM
6699 toff = isym->st_value;
6700 sym_type = ELF_ST_TYPE (isym->st_info);
6701 }
6702 else
6703 {
6704 /* Global symbol handling. */
6705 unsigned long indx;
7619e7c7 6706
25dbc73a
AM
6707 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
6708 h = elf_sym_hashes (abfd)[indx];
7619e7c7 6709
25dbc73a
AM
6710 while (h->root.type == bfd_link_hash_indirect
6711 || h->root.type == bfd_link_hash_warning)
6712 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7619e7c7 6713
a9585d22
AM
6714 if (h->root.type == bfd_link_hash_defined
6715 || h->root.type == bfd_link_hash_defweak)
25dbc73a
AM
6716 {
6717 tsec = h->root.u.def.section;
6718 toff = h->root.u.def.value;
6719 }
c8a1f254
NS
6720 else if (h->root.type == bfd_link_hash_undefined
6721 || h->root.type == bfd_link_hash_undefweak)
6722 {
6723 tsec = bfd_und_section_ptr;
01017ef8 6724 toff = link_info->relocatable ? indx : 0;
c8a1f254 6725 }
25dbc73a
AM
6726 else
6727 continue;
7619e7c7 6728
25dbc73a
AM
6729 sym_type = h->type;
6730 }
7619e7c7 6731
a9585d22
AM
6732 /* The condition here under which we call find_plt_ent must
6733 match that in relocate_section. If we call find_plt_ent here
6734 but not in relocate_section, or vice versa, then the branch
6735 destination used here may be incorrect. */
6736 plist = NULL;
6737 if (h != NULL)
de972ffa 6738 {
a9585d22
AM
6739 /* We know is_branch_reloc (r_type) is true. */
6740 if (h->type == STT_GNU_IFUNC
6741 || r_type == R_PPC_PLTREL24)
de972ffa 6742 plist = &h->plt.plist;
a9585d22
AM
6743 }
6744 else if (sym_type == STT_GNU_IFUNC
6745 && elf_local_got_offsets (abfd) != NULL)
6746 {
6747 bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
6748 struct plt_entry **local_plt = (struct plt_entry **)
6749 (local_got_offsets + symtab_hdr->sh_info);
6750 plist = local_plt + ELF32_R_SYM (irel->r_info);
6751 }
6752 if (plist != NULL)
6753 {
6754 bfd_vma addend = 0;
6755 struct plt_entry *ent;
de972ffa 6756
a9585d22
AM
6757 if (r_type == R_PPC_PLTREL24 && link_info->shared)
6758 addend = irel->r_addend;
6759 ent = find_plt_ent (plist, got2, addend);
6760 if (ent != NULL)
6761 {
6762 if (htab->plt_type == PLT_NEW
6763 || h == NULL
6764 || !htab->elf.dynamic_sections_created
6765 || h->dynindx == -1)
de972ffa 6766 {
a9585d22
AM
6767 tsec = htab->glink;
6768 toff = ent->glink_offset;
6769 }
6770 else
6771 {
6772 tsec = htab->plt;
6773 toff = ent->plt.offset;
de972ffa
AM
6774 }
6775 }
6776 }
6777
25dbc73a
AM
6778 /* If the branch and target are in the same section, you have
6779 no hope of adding stubs. We'll error out later should the
6780 branch overflow. */
6781 if (tsec == isec)
6782 continue;
6783
6784 /* There probably isn't any reason to handle symbols in
6785 SEC_MERGE sections; SEC_MERGE doesn't seem a likely
6786 attribute for a code section, and we are only looking at
6787 branches. However, implement it correctly here as a
6788 reference for other target relax_section functions. */
dbaa2011 6789 if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
25dbc73a
AM
6790 {
6791 /* At this stage in linking, no SEC_MERGE symbol has been
6792 adjusted, so all references to such symbols need to be
6793 passed through _bfd_merged_section_offset. (Later, in
6794 relocate_section, all SEC_MERGE symbols *except* for
6795 section symbols have been adjusted.)
6796
6797 gas may reduce relocations against symbols in SEC_MERGE
6798 sections to a relocation against the section symbol when
6799 the original addend was zero. When the reloc is against
6800 a section symbol we should include the addend in the
6801 offset passed to _bfd_merged_section_offset, since the
6802 location of interest is the original symbol. On the
6803 other hand, an access to "sym+addend" where "sym" is not
6804 a section symbol should not include the addend; Such an
6805 access is presumed to be an offset from "sym"; The
6806 location of interest is just "sym". */
6807 if (sym_type == STT_SECTION)
6808 toff += irel->r_addend;
7619e7c7 6809
25dbc73a
AM
6810 toff = _bfd_merged_section_offset (abfd, &tsec,
6811 elf_section_data (tsec)->sec_info,
6812 toff);
7619e7c7 6813
25dbc73a
AM
6814 if (sym_type != STT_SECTION)
6815 toff += irel->r_addend;
6816 }
a6aa5195
AM
6817 /* PLTREL24 addends are special. */
6818 else if (r_type != R_PPC_PLTREL24)
25dbc73a 6819 toff += irel->r_addend;
7619e7c7 6820
7de713b9
AM
6821 /* Attempted -shared link of non-pic code loses. */
6822 if (tsec->output_section == NULL)
6823 continue;
6824
25dbc73a 6825 roff = irel->r_offset;
7619e7c7 6826
25dbc73a 6827 /* If the branch is in range, no need to do anything. */
c8a1f254
NS
6828 if (tsec != bfd_und_section_ptr
6829 && (!link_info->relocatable
6830 /* A relocatable link may have sections moved during
6831 final link, so do not presume they remain in range. */
01017ef8
NS
6832 || tsec->output_section == isec->output_section))
6833 {
6834 bfd_vma symaddr, reladdr;
6835
6836 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
6837 reladdr = isec->output_section->vma + isec->output_offset + roff;
6838 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
6839 continue;
6840 }
252b5132 6841
25dbc73a
AM
6842 /* Look for an existing fixup to this address. */
6843 for (f = fixups; f ; f = f->next)
6844 if (f->tsec == tsec && f->toff == toff)
6845 break;
6846
6847 if (f == NULL)
7619e7c7 6848 {
25dbc73a
AM
6849 size_t size;
6850 unsigned long stub_rtype;
252b5132 6851
25dbc73a
AM
6852 val = trampoff - roff;
6853 if (val >= max_branch_offset)
6854 /* Oh dear, we can't reach a trampoline. Don't try to add
6855 one. We'll report an error later. */
6856 continue;
252b5132 6857
25dbc73a
AM
6858 if (link_info->shared)
6859 {
6860 size = 4 * ARRAY_SIZE (shared_stub_entry);
6861 insn_offset = 12;
25dbc73a
AM
6862 }
6863 else
6864 {
6865 size = 4 * ARRAY_SIZE (stub_entry);
6866 insn_offset = 0;
25dbc73a 6867 }
32af9f6e 6868 stub_rtype = R_PPC_RELAX;
d7128ce4
AM
6869 if (tsec == htab->plt
6870 || tsec == htab->glink)
32af9f6e
AM
6871 {
6872 stub_rtype = R_PPC_RELAX_PLT;
6873 if (r_type == R_PPC_PLTREL24)
6874 stub_rtype = R_PPC_RELAX_PLTREL24;
6875 }
252b5132 6876
25dbc73a
AM
6877 /* Hijack the old relocation. Since we need two
6878 relocations for this use a "composite" reloc. */
6879 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
6880 stub_rtype);
6881 irel->r_offset = trampoff + insn_offset;
32af9f6e
AM
6882 if (r_type == R_PPC_PLTREL24
6883 && stub_rtype != R_PPC_RELAX_PLTREL24)
e7d92e2e 6884 irel->r_addend = 0;
252b5132 6885
25dbc73a
AM
6886 /* Record the fixup so we don't do it again this section. */
6887 f = bfd_malloc (sizeof (*f));
6888 f->next = fixups;
6889 f->tsec = tsec;
6890 f->toff = toff;
6891 f->trampoff = trampoff;
6892 fixups = f;
252b5132 6893
25dbc73a 6894 trampoff += size;
9bc4e62b 6895 changes++;
25dbc73a
AM
6896 }
6897 else
6898 {
6899 val = f->trampoff - roff;
6900 if (val >= max_branch_offset)
6901 continue;
252b5132 6902
25dbc73a
AM
6903 /* Nop out the reloc, since we're finalizing things here. */
6904 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
6905 }
252b5132 6906
25dbc73a
AM
6907 /* Get the section contents. */
6908 if (contents == NULL)
6909 {
6910 /* Get cached copy if it exists. */
6911 if (elf_section_data (isec)->this_hdr.contents != NULL)
6912 contents = elf_section_data (isec)->this_hdr.contents;
6913 else
6914 {
6915 /* Go get them off disk. */
6916 if (!bfd_malloc_and_get_section (abfd, isec, &contents))
6917 goto error_return;
6918 }
6919 }
252b5132 6920
25dbc73a
AM
6921 /* Fix up the existing branch to hit the trampoline. */
6922 hit_addr = contents + roff;
6923 switch (r_type)
6924 {
6925 case R_PPC_REL24:
6926 case R_PPC_LOCAL24PC:
6927 case R_PPC_PLTREL24:
6928 t0 = bfd_get_32 (abfd, hit_addr);
6929 t0 &= ~0x3fffffc;
6930 t0 |= val & 0x3fffffc;
6931 bfd_put_32 (abfd, t0, hit_addr);
6932 break;
252b5132 6933
25dbc73a
AM
6934 case R_PPC_REL14:
6935 case R_PPC_REL14_BRTAKEN:
6936 case R_PPC_REL14_BRNTAKEN:
6937 t0 = bfd_get_32 (abfd, hit_addr);
6938 t0 &= ~0xfffc;
6939 t0 |= val & 0xfffc;
6940 bfd_put_32 (abfd, t0, hit_addr);
6941 break;
6942 }
6943 }
252b5132 6944
25dbc73a 6945 /* Write out the trampolines. */
25dbc73a
AM
6946 if (fixups != NULL)
6947 {
6948 const int *stub;
6949 bfd_byte *dest;
25dbc73a 6950 int i, size;
252b5132 6951
25dbc73a
AM
6952 do
6953 {
6954 struct one_fixup *f = fixups;
6955 fixups = fixups->next;
6956 free (f);
6957 }
6958 while (fixups);
252b5132 6959
515ef31d 6960 contents = bfd_realloc_or_free (contents, trampoff);
25dbc73a
AM
6961 if (contents == NULL)
6962 goto error_return;
252b5132 6963
25dbc73a 6964 isec->size = (isec->size + 3) & (bfd_vma) -4;
25dbc73a 6965 dest = contents + isec->size;
50248c89
AM
6966 /* Branch around the trampolines. */
6967 if (maybe_pasted)
6968 {
6969 bfd_vma val = B + trampoff - isec->size;
6970 bfd_put_32 (abfd, val, dest);
6971 dest += 4;
6972 }
25dbc73a 6973 isec->size = trampoff;
252b5132 6974
25dbc73a
AM
6975 if (link_info->shared)
6976 {
6977 stub = shared_stub_entry;
6978 size = ARRAY_SIZE (shared_stub_entry);
6979 }
6980 else
6981 {
6982 stub = stub_entry;
6983 size = ARRAY_SIZE (stub_entry);
6984 }
252b5132 6985
25dbc73a
AM
6986 i = 0;
6987 while (dest < contents + trampoff)
252b5132 6988 {
25dbc73a
AM
6989 bfd_put_32 (abfd, stub[i], dest);
6990 i++;
6991 if (i == size)
6992 i = 0;
6993 dest += 4;
252b5132 6994 }
25dbc73a 6995 BFD_ASSERT (i == 0);
252b5132
RH
6996 }
6997
25dbc73a
AM
6998 if (isymbuf != NULL
6999 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132 7000 {
25dbc73a
AM
7001 if (! link_info->keep_memory)
7002 free (isymbuf);
252b5132 7003 else
25dbc73a
AM
7004 {
7005 /* Cache the symbols for elf_link_input_bfd. */
7006 symtab_hdr->contents = (unsigned char *) isymbuf;
7007 }
252b5132
RH
7008 }
7009
25dbc73a
AM
7010 if (contents != NULL
7011 && elf_section_data (isec)->this_hdr.contents != contents)
7012 {
9bc4e62b 7013 if (!changes && !link_info->keep_memory)
25dbc73a
AM
7014 free (contents);
7015 else
7016 {
7017 /* Cache the section contents for elf_link_input_bfd. */
7018 elf_section_data (isec)->this_hdr.contents = contents;
7019 }
7020 }
252b5132 7021
9bc4e62b 7022 if (changes != 0)
25dbc73a 7023 {
9bc4e62b
NS
7024 /* Append sufficient NOP relocs so we can write out relocation
7025 information for the trampolines. */
d4730f92 7026 Elf_Internal_Shdr *rel_hdr;
9bc4e62b
NS
7027 Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
7028 * sizeof (*new_relocs));
7029 unsigned ix;
5b914448 7030
9bc4e62b
NS
7031 if (!new_relocs)
7032 goto error_return;
7033 memcpy (new_relocs, internal_relocs,
7034 isec->reloc_count * sizeof (*new_relocs));
7035 for (ix = changes; ix--;)
7036 {
7037 irel = new_relocs + ix + isec->reloc_count;
7038
7039 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
7040 }
7041 if (internal_relocs != elf_section_data (isec)->relocs)
25dbc73a 7042 free (internal_relocs);
9bc4e62b
NS
7043 elf_section_data (isec)->relocs = new_relocs;
7044 isec->reloc_count += changes;
d4730f92
BS
7045 rel_hdr = _bfd_elf_single_rel_hdr (isec);
7046 rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
25dbc73a 7047 }
9bc4e62b
NS
7048 else if (elf_section_data (isec)->relocs != internal_relocs)
7049 free (internal_relocs);
252b5132 7050
9bc4e62b 7051 *again = changes != 0;
c8a1f254
NS
7052 if (!*again && link_info->relocatable)
7053 {
7054 /* Convert the internal relax relocs to external form. */
7055 for (irel = internal_relocs; irel < irelend; irel++)
32af9f6e 7056 if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
c8a1f254
NS
7057 {
7058 unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
7059
7060 /* Rewrite the reloc and convert one of the trailing nop
7061 relocs to describe this relocation. */
7062 BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
7063 /* The relocs are at the bottom 2 bytes */
7064 irel[0].r_offset += 2;
7065 memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
7066 irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
7067 irel[1].r_offset += 4;
7068 irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
7069 irel++;
7070 }
7071 }
5b914448 7072
b34976b6 7073 return TRUE;
25dbc73a
AM
7074
7075 error_return:
7076 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
7077 free (isymbuf);
7078 if (contents != NULL
7079 && elf_section_data (isec)->this_hdr.contents != contents)
7080 free (contents);
7081 if (internal_relocs != NULL
7082 && elf_section_data (isec)->relocs != internal_relocs)
7083 free (internal_relocs);
7084 return FALSE;
252b5132 7085}
252b5132 7086\f
8a696751
AM
7087/* What to do when ld finds relocations against symbols defined in
7088 discarded sections. */
7089
7090static unsigned int
7091ppc_elf_action_discarded (asection *sec)
7092{
7093 if (strcmp (".fixup", sec->name) == 0)
7094 return 0;
7095
7096 if (strcmp (".got2", sec->name) == 0)
7097 return 0;
7098
7099 return _bfd_elf_default_action_discarded (sec);
7100}
c9a2f333 7101\f
25dbc73a 7102/* Fill in the address for a pointer generated in a linker section. */
252b5132 7103
25dbc73a 7104static bfd_vma
76750a2f 7105elf_finish_pointer_linker_section (bfd *input_bfd,
25dbc73a
AM
7106 elf_linker_section_t *lsect,
7107 struct elf_link_hash_entry *h,
7108 bfd_vma relocation,
2bb04cf2 7109 const Elf_Internal_Rela *rel)
25dbc73a
AM
7110{
7111 elf_linker_section_pointers_t *linker_section_ptr;
252b5132 7112
25dbc73a 7113 BFD_ASSERT (lsect != NULL);
252b5132 7114
25dbc73a 7115 if (h != NULL)
252b5132 7116 {
25dbc73a
AM
7117 /* Handle global symbol. */
7118 struct ppc_elf_link_hash_entry *eh;
252b5132 7119
25dbc73a 7120 eh = (struct ppc_elf_link_hash_entry *) h;
76750a2f
AM
7121 BFD_ASSERT (eh->elf.def_regular);
7122 linker_section_ptr = eh->linker_section_pointer;
25dbc73a
AM
7123 }
7124 else
7125 {
7126 /* Handle local symbol. */
7127 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
76750a2f 7128
0c8d6e5c 7129 BFD_ASSERT (is_ppc_elf (input_bfd));
25dbc73a 7130 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
76750a2f
AM
7131 linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
7132 }
252b5132 7133
76750a2f
AM
7134 linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
7135 rel->r_addend,
7136 lsect);
7137 BFD_ASSERT (linker_section_ptr != NULL);
25dbc73a 7138
76750a2f
AM
7139 /* Offset will always be a multiple of four, so use the bottom bit
7140 as a "written" flag. */
7141 if ((linker_section_ptr->offset & 1) == 0)
7142 {
7143 bfd_put_32 (lsect->section->owner,
7144 relocation + linker_section_ptr->addend,
7145 lsect->section->contents + linker_section_ptr->offset);
7146 linker_section_ptr->offset += 1;
252b5132
RH
7147 }
7148
bd6c6e2b
AM
7149 relocation = (lsect->section->output_section->vma
7150 + lsect->section->output_offset
76750a2f 7151 + linker_section_ptr->offset - 1
bd6c6e2b 7152 - SYM_VAL (lsect->sym));
252b5132 7153
25dbc73a
AM
7154#ifdef DEBUG
7155 fprintf (stderr,
7156 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
7157 lsect->name, (long) relocation, (long) relocation);
7158#endif
252b5132 7159
bd6c6e2b 7160 return relocation;
252b5132 7161}
25dbc73a 7162
e054468f
AM
7163#define PPC_LO(v) ((v) & 0xffff)
7164#define PPC_HI(v) (((v) >> 16) & 0xffff)
7165#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7166
7167static void
a7f2871e 7168write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
e054468f
AM
7169 struct bfd_link_info *info)
7170{
7171 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
7172 bfd *output_bfd = info->output_bfd;
7173 bfd_vma plt;
e054468f
AM
7174
7175 plt = ((ent->plt.offset & ~1)
7176 + plt_sec->output_section->vma
7177 + plt_sec->output_offset);
e054468f 7178
a877a2b6 7179 if (info->shared)
e054468f
AM
7180 {
7181 bfd_vma got = 0;
7182
7183 if (ent->addend >= 32768)
7184 got = (ent->addend
7185 + ent->sec->output_section->vma
7186 + ent->sec->output_offset);
7187 else if (htab->elf.hgot != NULL)
7188 got = SYM_VAL (htab->elf.hgot);
7189
7190 plt -= got;
7191
7192 if (plt + 0x8000 < 0x10000)
7193 {
7194 bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
7195 p += 4;
7196 bfd_put_32 (output_bfd, MTCTR_11, p);
7197 p += 4;
7198 bfd_put_32 (output_bfd, BCTR, p);
7199 p += 4;
7200 bfd_put_32 (output_bfd, NOP, p);
7201 p += 4;
7202 }
7203 else
7204 {
7205 bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
7206 p += 4;
7207 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7208 p += 4;
7209 bfd_put_32 (output_bfd, MTCTR_11, p);
7210 p += 4;
7211 bfd_put_32 (output_bfd, BCTR, p);
7212 p += 4;
7213 }
7214 }
7215 else
7216 {
7217 bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
7218 p += 4;
7219 bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
7220 p += 4;
7221 bfd_put_32 (output_bfd, MTCTR_11, p);
7222 p += 4;
7223 bfd_put_32 (output_bfd, BCTR, p);
7224 p += 4;
7225 }
7226}
7227
bd6c6e2b
AM
7228/* Return true if symbol is defined statically. */
7229
7230static bfd_boolean
7231is_static_defined (struct elf_link_hash_entry *h)
7232{
7233 return ((h->root.type == bfd_link_hash_defined
7234 || h->root.type == bfd_link_hash_defweak)
7235 && h->root.u.def.section != NULL
7236 && h->root.u.def.section->output_section != NULL);
7237}
7238
2d0f3896
AM
7239/* If INSN is an opcode that may be used with an @tls operand, return
7240 the transformed insn for TLS optimisation, otherwise return 0. If
7241 REG is non-zero only match an insn with RB or RA equal to REG. */
7242
7243unsigned int
7244_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
7245{
7246 unsigned int rtra;
7247
7248 if ((insn & (0x3f << 26)) != 31 << 26)
7249 return 0;
7250
7251 if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
7252 rtra = insn & ((1 << 26) - (1 << 16));
7253 else if (((insn >> 16) & 0x1f) == reg)
7254 rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
7255 else
7256 return 0;
7257
7258 if ((insn & (0x3ff << 1)) == 266 << 1)
7259 /* add -> addi. */
7260 insn = 14 << 26;
7261 else if ((insn & (0x1f << 1)) == 23 << 1
7262 && ((insn & (0x1f << 6)) < 14 << 6
7263 || ((insn & (0x1f << 6)) >= 16 << 6
7264 && (insn & (0x1f << 6)) < 24 << 6)))
7265 /* load and store indexed -> dform. */
7266 insn = (32 | ((insn >> 6) & 0x1f)) << 26;
7267 else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
7268 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7269 insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
7270 else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
7271 /* lwax -> lwa. */
7272 insn = (58 << 26) | 2;
7273 else
7274 return 0;
7275 insn |= rtra;
7276 return insn;
7277}
7278
766bc656
AM
7279/* If INSN is an opcode that may be used with an @tprel operand, return
7280 the transformed insn for an undefined weak symbol, ie. with the
7281 thread pointer REG operand removed. Otherwise return 0. */
7282
7283unsigned int
7284_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
7285{
7286 if ((insn & (0x1f << 16)) == reg << 16
7287 && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
7288 || (insn & (0x3f << 26)) == 15u << 26 /* addis */
7289 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
7290 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
7291 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
7292 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
7293 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
7294 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
7295 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
7296 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
7297 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
7298 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
7299 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
7300 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
7301 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
7302 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
7303 && (insn & 3) != 1)
7304 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
7305 && ((insn & 3) == 0 || (insn & 3) == 3))))
7306 {
7307 insn &= ~(0x1f << 16);
7308 }
7309 else if ((insn & (0x1f << 21)) == reg << 21
7310 && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
7311 || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
7312 || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
7313 {
7314 insn &= ~(0x1f << 21);
7315 insn |= (insn & (0x1f << 16)) << 5;
7316 if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
7317 insn -= 2 >> 26; /* convert to ori,oris */
7318 }
7319 else
7320 insn = 0;
7321 return insn;
7322}
7323
1fe532cf
AM
7324static bfd_boolean
7325is_insn_ds_form (unsigned int insn)
7326{
7327 return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
7328 || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
7329 || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
7330 || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
7331}
7332
7333static bfd_boolean
7334is_insn_dq_form (unsigned int insn)
7335{
7336 return (insn & (0x3f << 26)) == 56u << 26; /* lq */
7337}
7338
252b5132
RH
7339/* The RELOCATE_SECTION function is called by the ELF backend linker
7340 to handle the relocations for a section.
7341
7342 The relocs are always passed as Rela structures; if the section
7343 actually uses Rel structures, the r_addend field will always be
7344 zero.
7345
7346 This function is responsible for adjust the section contents as
7347 necessary, and (if using Rela relocs and generating a
1049f94e 7348 relocatable output file) adjusting the reloc addend as
252b5132
RH
7349 necessary.
7350
7351 This function does not have to worry about setting the reloc
7352 address or the reloc symbol index.
7353
7354 LOCAL_SYMS is a pointer to the swapped in local symbols.
7355
7356 LOCAL_SECTIONS is an array giving the section in the input file
7357 corresponding to the st_shndx field of each local symbol.
7358
7359 The global hash table entry for the global symbols can be found
7360 via elf_sym_hashes (input_bfd).
7361
1049f94e 7362 When generating relocatable output, this function must handle
252b5132
RH
7363 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7364 going to be the section symbol corresponding to the output
7365 section, which means that the addend must be adjusted
7366 accordingly. */
7367
b34976b6 7368static bfd_boolean
55fd94b0
AM
7369ppc_elf_relocate_section (bfd *output_bfd,
7370 struct bfd_link_info *info,
7371 bfd *input_bfd,
7372 asection *input_section,
7373 bfd_byte *contents,
7374 Elf_Internal_Rela *relocs,
7375 Elf_Internal_Sym *local_syms,
7376 asection **local_sections)
252b5132 7377{
7619e7c7
AM
7378 Elf_Internal_Shdr *symtab_hdr;
7379 struct elf_link_hash_entry **sym_hashes;
7380 struct ppc_elf_link_hash_table *htab;
7381 Elf_Internal_Rela *rel;
7382 Elf_Internal_Rela *relend;
7383 Elf_Internal_Rela outrel;
a6aa5195 7384 asection *got2, *sreloc = NULL;
252b5132 7385 bfd_vma *local_got_offsets;
b34976b6 7386 bfd_boolean ret = TRUE;
4fe5ca5b 7387 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
3348747a 7388 bfd_boolean is_vxworks_tls;
b34976b6 7389
252b5132 7390#ifdef DEBUG
d003868e
AM
7391 _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
7392 "%ld relocations%s",
7393 input_bfd, input_section,
7394 (long) input_section->reloc_count,
7395 (info->relocatable) ? " (relocatable)" : "");
252b5132
RH
7396#endif
7397
a6aa5195
AM
7398 got2 = bfd_get_section_by_name (input_bfd, ".got2");
7399
e47cd125 7400 /* Initialize howto table if not already done. */
8da6118f 7401 if (!ppc_elf_howto_table[R_PPC_ADDR32])
252b5132
RH
7402 ppc_elf_howto_init ();
7403
7619e7c7 7404 htab = ppc_elf_hash_table (info);
252b5132 7405 local_got_offsets = elf_local_got_offsets (input_bfd);
0ffa91dd 7406 symtab_hdr = &elf_symtab_hdr (input_bfd);
7619e7c7 7407 sym_hashes = elf_sym_hashes (input_bfd);
3348747a
NS
7408 /* We have to handle relocations in vxworks .tls_vars sections
7409 specially, because the dynamic loader is 'weird'. */
7410 is_vxworks_tls = (htab->is_vxworks && info->shared
7411 && !strcmp (input_section->output_section->name,
7412 ".tls_vars"));
7619e7c7
AM
7413 rel = relocs;
7414 relend = relocs + input_section->reloc_count;
252b5132
RH
7415 for (; rel < relend; rel++)
7416 {
7619e7c7
AM
7417 enum elf_ppc_reloc_type r_type;
7418 bfd_vma addend;
7419 bfd_reloc_status_type r;
7420 Elf_Internal_Sym *sym;
7421 asection *sec;
7422 struct elf_link_hash_entry *h;
7423 const char *sym_name;
252b5132
RH
7424 reloc_howto_type *howto;
7425 unsigned long r_symndx;
7426 bfd_vma relocation;
91d6fa6a 7427 bfd_vma branch_bit, from;
7619e7c7
AM
7428 bfd_boolean unresolved_reloc;
7429 bfd_boolean warned;
7430 unsigned int tls_type, tls_mask, tls_gd;
e054468f 7431 struct plt_entry **ifunc;
7619e7c7 7432
55fd94b0
AM
7433 r_type = ELF32_R_TYPE (rel->r_info);
7434 sym = NULL;
7435 sec = NULL;
7436 h = NULL;
7619e7c7
AM
7437 unresolved_reloc = FALSE;
7438 warned = FALSE;
252b5132 7439 r_symndx = ELF32_R_SYM (rel->r_info);
560e09e9 7440
252b5132
RH
7441 if (r_symndx < symtab_hdr->sh_info)
7442 {
7443 sym = local_syms + r_symndx;
7444 sec = local_sections[r_symndx];
26c61ae5 7445 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
252b5132 7446
8517fae7 7447 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
252b5132
RH
7448 }
7449 else
7450 {
b2a8e766
AM
7451 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7452 r_symndx, symtab_hdr, sym_hashes,
7453 h, sec, relocation,
7454 unresolved_reloc, warned);
9abc968f 7455
252b5132 7456 sym_name = h->root.root.string;
7619e7c7
AM
7457 }
7458
dbaa2011 7459 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
7460 {
7461 /* For relocs against symbols from removed linkonce sections,
7462 or sections discarded by a linker script, we just want the
7463 section contents zeroed. Avoid any special processing. */
7464 howto = NULL;
7465 if (r_type < R_PPC_max)
7466 howto = ppc_elf_howto_table[r_type];
e4067dbb 7467 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 7468 rel, 1, relend, howto, 0, contents);
ab96bf03
AM
7469 }
7470
7471 if (info->relocatable)
7472 {
7473 if (got2 != NULL
7474 && r_type == R_PPC_PLTREL24
7475 && rel->r_addend >= 32768)
7476 {
7477 /* R_PPC_PLTREL24 is rather special. If non-zero, the
7478 addend specifies the GOT pointer offset within .got2. */
7479 rel->r_addend += got2->output_offset;
7480 }
7481 continue;
7482 }
7483
7619e7c7
AM
7484 /* TLS optimizations. Replace instruction sequences and relocs
7485 based on information we collected in tls_optimize. We edit
7486 RELOCS so that --emit-relocs will output something sensible
7487 for the final instruction stream. */
7488 tls_mask = 0;
7489 tls_gd = 0;
727fc41e
AM
7490 if (h != NULL)
7491 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
7492 else if (local_got_offsets != NULL)
7619e7c7 7493 {
e054468f 7494 struct plt_entry **local_plt;
727fc41e 7495 char *lgot_masks;
e054468f
AM
7496 local_plt
7497 = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
7498 lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
727fc41e 7499 tls_mask = lgot_masks[r_symndx];
7619e7c7
AM
7500 }
7501
7502 /* Ensure reloc mapping code below stays sane. */
7503 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
7504 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
7505 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
7506 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
7507 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
7508 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
7509 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
7510 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
7511 abort ();
7512 switch (r_type)
7513 {
7514 default:
7515 break;
7516
7517 case R_PPC_GOT_TPREL16:
7518 case R_PPC_GOT_TPREL16_LO:
e054468f 7519 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7520 && (tls_mask & TLS_TPREL) == 0)
7521 {
7522 bfd_vma insn;
91d6fa6a 7523
4fe5ca5b 7524 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
7619e7c7
AM
7525 insn &= 31 << 21;
7526 insn |= 0x3c020000; /* addis 0,2,0 */
4fe5ca5b 7527 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
7619e7c7
AM
7528 r_type = R_PPC_TPREL16_HA;
7529 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7530 }
7531 break;
7532
7533 case R_PPC_TLS:
e054468f 7534 if ((tls_mask & TLS_TLS) != 0
7619e7c7
AM
7535 && (tls_mask & TLS_TPREL) == 0)
7536 {
2d0f3896
AM
7537 bfd_vma insn;
7538
7619e7c7 7539 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM
7540 insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
7541 if (insn == 0)
7619e7c7 7542 abort ();
7619e7c7
AM
7543 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7544 r_type = R_PPC_TPREL16_LO;
7545 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4fe5ca5b 7546
7619e7c7 7547 /* Was PPC_TLS which sits on insn boundary, now
4fe5ca5b
GM
7548 PPC_TPREL16_LO which is at low-order half-word. */
7549 rel->r_offset += d_offset;
7619e7c7
AM
7550 }
7551 break;
7552
7553 case R_PPC_GOT_TLSGD16_HI:
7554 case R_PPC_GOT_TLSGD16_HA:
7555 tls_gd = TLS_TPRELGD;
e054468f 7556 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
7619e7c7
AM
7557 goto tls_gdld_hi;
7558 break;
7559
7560 case R_PPC_GOT_TLSLD16_HI:
7561 case R_PPC_GOT_TLSLD16_HA:
e054468f 7562 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7
AM
7563 {
7564 tls_gdld_hi:
7565 if ((tls_mask & tls_gd) != 0)
7566 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7567 + R_PPC_GOT_TPREL16);
7568 else
7569 {
7570 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 7571 rel->r_offset -= d_offset;
7619e7c7
AM
7572 r_type = R_PPC_NONE;
7573 }
7574 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7575 }
7576 break;
7577
7578 case R_PPC_GOT_TLSGD16:
7579 case R_PPC_GOT_TLSGD16_LO:
7580 tls_gd = TLS_TPRELGD;
e054468f 7581 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
b7fcf6f6 7582 goto tls_ldgd_opt;
7619e7c7
AM
7583 break;
7584
7585 case R_PPC_GOT_TLSLD16:
7586 case R_PPC_GOT_TLSLD16_LO:
e054468f 7587 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
7619e7c7 7588 {
3a71aa26 7589 unsigned int insn1, insn2;
b7fcf6f6 7590 bfd_vma offset;
7619e7c7 7591
b7fcf6f6 7592 tls_ldgd_opt:
727fc41e
AM
7593 offset = (bfd_vma) -1;
7594 /* If not using the newer R_PPC_TLSGD/LD to mark
7595 __tls_get_addr calls, we must trust that the call
7596 stays with its arg setup insns, ie. that the next
7597 reloc is the __tls_get_addr call associated with
7598 the current reloc. Edit both insns. */
7599 if (input_section->has_tls_get_addr_call
7600 && rel + 1 < relend
7601 && branch_reloc_hash_match (input_bfd, rel + 1,
7602 htab->tls_get_addr))
7603 offset = rel[1].r_offset;
b7fcf6f6
AM
7604 if ((tls_mask & tls_gd) != 0)
7605 {
7606 /* IE */
3a71aa26
AM
7607 insn1 = bfd_get_32 (output_bfd,
7608 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7609 insn1 &= (1 << 26) - 1;
7610 insn1 |= 32 << 26; /* lwz */
727fc41e
AM
7611 if (offset != (bfd_vma) -1)
7612 {
f58d5a2d 7613 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7614 insn2 = 0x7c631214; /* add 3,3,2 */
7615 bfd_put_32 (output_bfd, insn2, contents + offset);
7616 }
b7fcf6f6
AM
7617 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
7618 + R_PPC_GOT_TPREL16);
7619 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7620 }
7621 else
7622 {
7623 /* LE */
7624 insn1 = 0x3c620000; /* addis 3,2,0 */
7619e7c7
AM
7625 if (tls_gd == 0)
7626 {
b7fcf6f6 7627 /* Was an LD reloc. */
1d483afe
AM
7628 for (r_symndx = 0;
7629 r_symndx < symtab_hdr->sh_info;
7630 r_symndx++)
7631 if (local_sections[r_symndx] == sec)
7632 break;
7633 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7634 r_symndx = STN_UNDEF;
b7fcf6f6 7635 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7636 if (r_symndx != STN_UNDEF)
1d483afe
AM
7637 rel->r_addend -= (local_syms[r_symndx].st_value
7638 + sec->output_offset
7639 + sec->output_section->vma);
7619e7c7 7640 }
b7fcf6f6
AM
7641 r_type = R_PPC_TPREL16_HA;
7642 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
727fc41e
AM
7643 if (offset != (bfd_vma) -1)
7644 {
7645 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7646 rel[1].r_offset = offset + d_offset;
7647 rel[1].r_addend = rel->r_addend;
7648 insn2 = 0x38630000; /* addi 3,3,0 */
7649 bfd_put_32 (output_bfd, insn2, contents + offset);
7650 }
b7fcf6f6
AM
7651 }
7652 bfd_put_32 (output_bfd, insn1,
7653 contents + rel->r_offset - d_offset);
b7fcf6f6
AM
7654 if (tls_gd == 0)
7655 {
7656 /* We changed the symbol on an LD reloc. Start over
7657 in order to get h, sym, sec etc. right. */
7658 rel--;
7659 continue;
7619e7c7 7660 }
252b5132 7661 }
7619e7c7 7662 break;
727fc41e
AM
7663
7664 case R_PPC_TLSGD:
e054468f 7665 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
727fc41e
AM
7666 {
7667 unsigned int insn2;
7668 bfd_vma offset = rel->r_offset;
7669
7670 if ((tls_mask & TLS_TPRELGD) != 0)
7671 {
7672 /* IE */
7673 r_type = R_PPC_NONE;
7674 insn2 = 0x7c631214; /* add 3,3,2 */
7675 }
7676 else
7677 {
7678 /* LE */
7679 r_type = R_PPC_TPREL16_LO;
7680 rel->r_offset += d_offset;
7681 insn2 = 0x38630000; /* addi 3,3,0 */
7682 }
7683 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
7684 bfd_put_32 (output_bfd, insn2, contents + offset);
7685 /* Zap the reloc on the _tls_get_addr call too. */
7686 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 7687 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7688 }
7689 break;
7690
7691 case R_PPC_TLSLD:
e054468f 7692 if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
727fc41e
AM
7693 {
7694 unsigned int insn2;
7695
7696 for (r_symndx = 0;
7697 r_symndx < symtab_hdr->sh_info;
7698 r_symndx++)
7699 if (local_sections[r_symndx] == sec)
7700 break;
7701 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 7702 r_symndx = STN_UNDEF;
727fc41e 7703 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 7704 if (r_symndx != STN_UNDEF)
727fc41e
AM
7705 rel->r_addend -= (local_syms[r_symndx].st_value
7706 + sec->output_offset
7707 + sec->output_section->vma);
7708
7709 rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
7710 rel->r_offset += d_offset;
7711 insn2 = 0x38630000; /* addi 3,3,0 */
7712 bfd_put_32 (output_bfd, insn2,
7713 contents + rel->r_offset - d_offset);
7714 /* Zap the reloc on the _tls_get_addr call too. */
7715 BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
f58d5a2d 7716 rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
727fc41e
AM
7717 rel--;
7718 continue;
7719 }
7720 break;
7619e7c7
AM
7721 }
7722
7723 /* Handle other relocations that tweak non-addend part of insn. */
7724 branch_bit = 0;
7725 switch (r_type)
7726 {
7727 default:
7728 break;
7729
7730 /* Branch taken prediction relocations. */
7731 case R_PPC_ADDR14_BRTAKEN:
7732 case R_PPC_REL14_BRTAKEN:
7733 branch_bit = BRANCH_PREDICT_BIT;
7734 /* Fall thru */
7735
4cc11e76 7736 /* Branch not taken prediction relocations. */
7619e7c7
AM
7737 case R_PPC_ADDR14_BRNTAKEN:
7738 case R_PPC_REL14_BRNTAKEN:
91d6fa6a
NC
7739 {
7740 bfd_vma insn;
7619e7c7 7741
91d6fa6a
NC
7742 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7743 insn &= ~BRANCH_PREDICT_BIT;
7744 insn |= branch_bit;
7619e7c7 7745
91d6fa6a
NC
7746 from = (rel->r_offset
7747 + input_section->output_offset
7748 + input_section->output_section->vma);
7619e7c7 7749
91d6fa6a
NC
7750 /* Invert 'y' bit if not the default. */
7751 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7752 insn ^= BRANCH_PREDICT_BIT;
7753
7754 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7755 break;
7756 }
252b5132
RH
7757 }
7758
e054468f 7759 ifunc = NULL;
25f23106 7760 if (!htab->is_vxworks)
e054468f 7761 {
de972ffa
AM
7762 struct plt_entry *ent;
7763
e054468f
AM
7764 if (h != NULL)
7765 {
7766 if (h->type == STT_GNU_IFUNC)
7767 ifunc = &h->plt.plist;
7768 }
de972ffa
AM
7769 else if (local_got_offsets != NULL
7770 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
e054468f 7771 {
de972ffa 7772 struct plt_entry **local_plt;
e054468f 7773
de972ffa
AM
7774 local_plt = (struct plt_entry **) (local_got_offsets
7775 + symtab_hdr->sh_info);
7776 ifunc = local_plt + r_symndx;
e054468f 7777 }
e054468f 7778
de972ffa
AM
7779 ent = NULL;
7780 if (ifunc != NULL
7781 && (!info->shared
7782 || is_branch_reloc (r_type)))
7783 {
7784 addend = 0;
a877a2b6 7785 if (r_type == R_PPC_PLTREL24 && info->shared)
de972ffa
AM
7786 addend = rel->r_addend;
7787 ent = find_plt_ent (ifunc, got2, addend);
7788 }
7789 if (ent != NULL)
7790 {
e054468f
AM
7791 if (h == NULL && (ent->plt.offset & 1) == 0)
7792 {
7793 Elf_Internal_Rela rela;
7794 bfd_byte *loc;
7795
7796 rela.r_offset = (htab->iplt->output_section->vma
7797 + htab->iplt->output_offset
7798 + ent->plt.offset);
7799 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
7800 rela.r_addend = relocation;
25f23106
AM
7801 loc = htab->reliplt->contents;
7802 loc += (htab->reliplt->reloc_count++
7803 * sizeof (Elf32_External_Rela));
e054468f
AM
7804 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
7805
7806 ent->plt.offset |= 1;
7807 }
7808 if (h == NULL && (ent->glink_offset & 1) == 0)
7809 {
a7f2871e
AM
7810 unsigned char *p = ((unsigned char *) htab->glink->contents
7811 + ent->glink_offset);
7812 write_glink_stub (ent, htab->iplt, p, info);
e054468f
AM
7813 ent->glink_offset |= 1;
7814 }
7815
7816 unresolved_reloc = FALSE;
7817 if (htab->plt_type == PLT_NEW
7818 || !htab->elf.dynamic_sections_created
7819 || h == NULL)
7820 relocation = (htab->glink->output_section->vma
7821 + htab->glink->output_offset
7822 + (ent->glink_offset & ~1));
7823 else
7824 relocation = (htab->plt->output_section->vma
7825 + htab->plt->output_offset
7826 + ent->plt.offset);
7827 }
7828 }
7829
7619e7c7
AM
7830 addend = rel->r_addend;
7831 tls_type = 0;
7832 howto = NULL;
55fd94b0
AM
7833 if (r_type < R_PPC_max)
7834 howto = ppc_elf_howto_table[r_type];
7619e7c7 7835 switch (r_type)
252b5132
RH
7836 {
7837 default:
25f53a85 7838 info->callbacks->einfo
8de848d8 7839 (_("%P: %B: unknown relocation type %d for symbol %s\n"),
d003868e 7840 input_bfd, (int) r_type, sym_name);
252b5132
RH
7841
7842 bfd_set_error (bfd_error_bad_value);
b34976b6 7843 ret = FALSE;
252b5132
RH
7844 continue;
7845
7619e7c7
AM
7846 case R_PPC_NONE:
7847 case R_PPC_TLS:
727fc41e
AM
7848 case R_PPC_TLSGD:
7849 case R_PPC_TLSLD:
7619e7c7
AM
7850 case R_PPC_EMB_MRKREF:
7851 case R_PPC_GNU_VTINHERIT:
7852 case R_PPC_GNU_VTENTRY:
7595d193
L
7853 continue;
7854
7619e7c7
AM
7855 /* GOT16 relocations. Like an ADDR16 using the symbol's
7856 address in the GOT as relocation value instead of the
7857 symbol's value itself. Also, create a GOT entry for the
7858 symbol and put the symbol value there. */
7859 case R_PPC_GOT_TLSGD16:
7860 case R_PPC_GOT_TLSGD16_LO:
7861 case R_PPC_GOT_TLSGD16_HI:
7862 case R_PPC_GOT_TLSGD16_HA:
7863 tls_type = TLS_TLS | TLS_GD;
7864 goto dogot;
7865
7866 case R_PPC_GOT_TLSLD16:
7867 case R_PPC_GOT_TLSLD16_LO:
7868 case R_PPC_GOT_TLSLD16_HI:
7869 case R_PPC_GOT_TLSLD16_HA:
7870 tls_type = TLS_TLS | TLS_LD;
7871 goto dogot;
7872
7873 case R_PPC_GOT_TPREL16:
7874 case R_PPC_GOT_TPREL16_LO:
7875 case R_PPC_GOT_TPREL16_HI:
7876 case R_PPC_GOT_TPREL16_HA:
7877 tls_type = TLS_TLS | TLS_TPREL;
7878 goto dogot;
7879
7880 case R_PPC_GOT_DTPREL16:
7881 case R_PPC_GOT_DTPREL16_LO:
7882 case R_PPC_GOT_DTPREL16_HI:
7883 case R_PPC_GOT_DTPREL16_HA:
7884 tls_type = TLS_TLS | TLS_DTPREL;
7885 goto dogot;
7886
7887 case R_PPC_GOT16:
7888 case R_PPC_GOT16_LO:
7889 case R_PPC_GOT16_HI:
7890 case R_PPC_GOT16_HA:
727fc41e 7891 tls_mask = 0;
7619e7c7
AM
7892 dogot:
7893 {
7894 /* Relocation is to the entry for this symbol in the global
7895 offset table. */
7896 bfd_vma off;
7897 bfd_vma *offp;
7898 unsigned long indx;
7899
7900 if (htab->got == NULL)
7901 abort ();
7902
7903 indx = 0;
7904 if (tls_type == (TLS_TLS | TLS_LD)
d881513a 7905 && (h == NULL
f5385ebf 7906 || !h->def_dynamic))
7619e7c7
AM
7907 offp = &htab->tlsld_got.offset;
7908 else if (h != NULL)
7909 {
7910 bfd_boolean dyn;
7911 dyn = htab->elf.dynamic_sections_created;
ee05f2fe 7912 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7619e7c7
AM
7913 || (info->shared
7914 && SYMBOL_REFERENCES_LOCAL (info, h)))
7915 /* This is actually a static link, or it is a
7916 -Bsymbolic link and the symbol is defined
7917 locally, or the symbol was forced to be local
7918 because of a version file. */
7919 ;
7920 else
7921 {
14acf4dc 7922 BFD_ASSERT (h->dynindx != -1);
7619e7c7
AM
7923 indx = h->dynindx;
7924 unresolved_reloc = FALSE;
7925 }
7926 offp = &h->got.offset;
7927 }
7928 else
7929 {
7930 if (local_got_offsets == NULL)
7931 abort ();
7932 offp = &local_got_offsets[r_symndx];
7933 }
7934
7935 /* The offset must always be a multiple of 4. We use the
7936 least significant bit to record whether we have already
7937 processed this entry. */
7938 off = *offp;
7939 if ((off & 1) != 0)
7940 off &= ~1;
7941 else
7942 {
70bccea4
AM
7943 unsigned int tls_m = (tls_mask
7944 & (TLS_LD | TLS_GD | TLS_DTPREL
7945 | TLS_TPREL | TLS_TPRELGD));
7946
7947 if (offp == &htab->tlsld_got.offset)
7948 tls_m = TLS_LD;
7949 else if (h == NULL
f5385ebf 7950 || !h->def_dynamic)
70bccea4
AM
7951 tls_m &= ~TLS_LD;
7952
7953 /* We might have multiple got entries for this sym.
7954 Initialize them all. */
7955 do
7619e7c7 7956 {
70bccea4
AM
7957 int tls_ty = 0;
7958
7959 if ((tls_m & TLS_LD) != 0)
7619e7c7 7960 {
70bccea4
AM
7961 tls_ty = TLS_TLS | TLS_LD;
7962 tls_m &= ~TLS_LD;
7963 }
7964 else if ((tls_m & TLS_GD) != 0)
7965 {
7966 tls_ty = TLS_TLS | TLS_GD;
7967 tls_m &= ~TLS_GD;
7968 }
7969 else if ((tls_m & TLS_DTPREL) != 0)
7970 {
7971 tls_ty = TLS_TLS | TLS_DTPREL;
7972 tls_m &= ~TLS_DTPREL;
7973 }
7974 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
7975 {
7976 tls_ty = TLS_TLS | TLS_TPREL;
7977 tls_m = 0;
7619e7c7 7978 }
7619e7c7 7979
70bccea4 7980 /* Generate relocs for the dynamic linker. */
4e795f50 7981 if ((info->shared || indx != 0)
d6e14abc
AM
7982 && (offp == &htab->tlsld_got.offset
7983 || h == NULL
4e795f50
AM
7984 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7985 || h->root.type != bfd_link_hash_undefweak))
7619e7c7 7986 {
91e21fb7 7987 asection *rsec = htab->relgot;
91d6fa6a 7988 bfd_byte * loc;
91e21fb7 7989
70bccea4
AM
7990 outrel.r_offset = (htab->got->output_section->vma
7991 + htab->got->output_offset
7992 + off);
e515b051 7993 outrel.r_addend = 0;
70bccea4
AM
7994 if (tls_ty & (TLS_LD | TLS_GD))
7995 {
7996 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
70bccea4
AM
7997 if (tls_ty == (TLS_TLS | TLS_GD))
7998 {
25f23106
AM
7999 loc = rsec->contents;
8000 loc += (rsec->reloc_count++
70bccea4
AM
8001 * sizeof (Elf32_External_Rela));
8002 bfd_elf32_swap_reloca_out (output_bfd,
8003 &outrel, loc);
e515b051 8004 outrel.r_offset += 4;
70bccea4
AM
8005 outrel.r_info
8006 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
70bccea4
AM
8007 }
8008 }
8009 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
8010 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
8011 else if (tls_ty == (TLS_TLS | TLS_TPREL))
8012 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
25f23106 8013 else if (indx != 0)
70bccea4 8014 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
25f23106
AM
8015 else if (ifunc != NULL)
8016 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8017 else
8018 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
d6e14abc 8019 if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
e515b051
AM
8020 {
8021 outrel.r_addend += relocation;
8022 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 8023 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 8024 }
25f23106
AM
8025 loc = rsec->contents;
8026 loc += (rsec->reloc_count++
70bccea4
AM
8027 * sizeof (Elf32_External_Rela));
8028 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
7619e7c7
AM
8029 }
8030
70bccea4
AM
8031 /* Init the .got section contents if we're not
8032 emitting a reloc. */
8033 else
7619e7c7 8034 {
70bccea4
AM
8035 bfd_vma value = relocation;
8036
7b609f53
AM
8037 if (tls_ty == (TLS_TLS | TLS_LD))
8038 value = 1;
8039 else if (tls_ty != 0)
70bccea4 8040 {
e1918d23 8041 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 8042 if (tls_ty == (TLS_TLS | TLS_TPREL))
70bccea4 8043 value += DTP_OFFSET - TP_OFFSET;
70bccea4 8044
7b609f53
AM
8045 if (tls_ty == (TLS_TLS | TLS_GD))
8046 {
8047 bfd_put_32 (output_bfd, value,
8048 htab->got->contents + off + 4);
8049 value = 1;
8050 }
70bccea4 8051 }
70bccea4
AM
8052 bfd_put_32 (output_bfd, value,
8053 htab->got->contents + off);
7619e7c7 8054 }
70bccea4
AM
8055
8056 off += 4;
8057 if (tls_ty & (TLS_LD | TLS_GD))
8058 off += 4;
7619e7c7 8059 }
70bccea4
AM
8060 while (tls_m != 0);
8061
8062 off = *offp;
8063 *offp = off | 1;
7619e7c7
AM
8064 }
8065
8066 if (off >= (bfd_vma) -2)
8067 abort ();
8068
70bccea4
AM
8069 if ((tls_type & TLS_TLS) != 0)
8070 {
8071 if (tls_type != (TLS_TLS | TLS_LD))
8072 {
8073 if ((tls_mask & TLS_LD) != 0
8074 && !(h == NULL
f5385ebf 8075 || !h->def_dynamic))
70bccea4
AM
8076 off += 8;
8077 if (tls_type != (TLS_TLS | TLS_GD))
8078 {
8079 if ((tls_mask & TLS_GD) != 0)
8080 off += 8;
8081 if (tls_type != (TLS_TLS | TLS_DTPREL))
8082 {
8083 if ((tls_mask & TLS_DTPREL) != 0)
8084 off += 4;
8085 }
8086 }
8087 }
8088 }
8089
e87d4038
AM
8090 relocation = (htab->got->output_section->vma
8091 + htab->got->output_offset
8092 + off
8093 - SYM_VAL (htab->elf.hgot));
7619e7c7
AM
8094
8095 /* Addends on got relocations don't make much sense.
8096 x+off@got is actually x@got+off, and since the got is
8097 generated by a hash table traversal, the value in the
8098 got at entry m+n bears little relation to the entry m. */
8099 if (addend != 0)
25f53a85 8100 info->callbacks->einfo
8de848d8 8101 (_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
25f53a85 8102 input_bfd, input_section, rel->r_offset,
7b609f53 8103 howto->name,
7619e7c7
AM
8104 sym_name);
8105 }
70bccea4 8106 break;
7619e7c7 8107
252b5132 8108 /* Relocations that need no special processing. */
7619e7c7 8109 case R_PPC_LOCAL24PC:
252b5132
RH
8110 /* It makes no sense to point a local relocation
8111 at a symbol not in this object. */
7b609f53 8112 if (unresolved_reloc)
252b5132 8113 {
464e1740
ILT
8114 if (! (*info->callbacks->undefined_symbol) (info,
8115 h->root.root.string,
8116 input_bfd,
8117 input_section,
5cc7c785 8118 rel->r_offset,
b34976b6
AM
8119 TRUE))
8120 return FALSE;
252b5132
RH
8121 continue;
8122 }
8123 break;
8124
7619e7c7
AM
8125 case R_PPC_DTPREL16:
8126 case R_PPC_DTPREL16_LO:
8127 case R_PPC_DTPREL16_HI:
8128 case R_PPC_DTPREL16_HA:
e1918d23 8129 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8130 break;
8131
70bccea4
AM
8132 /* Relocations that may need to be propagated if this is a shared
8133 object. */
7619e7c7
AM
8134 case R_PPC_TPREL16:
8135 case R_PPC_TPREL16_LO:
8136 case R_PPC_TPREL16_HI:
8137 case R_PPC_TPREL16_HA:
766bc656
AM
8138 if (h != NULL
8139 && h->root.type == bfd_link_hash_undefweak
8140 && h->dynindx == -1)
8141 {
8142 /* Make this relocation against an undefined weak symbol
8143 resolve to zero. This is really just a tweak, since
8144 code using weak externs ought to check that they are
8145 defined before using them. */
8146 bfd_byte *p = contents + rel->r_offset - d_offset;
8147 unsigned int insn = bfd_get_32 (output_bfd, p);
8148 insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
8149 if (insn != 0)
8150 bfd_put_32 (output_bfd, insn, p);
8151 break;
8152 }
e1918d23 8153 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8154 /* The TPREL16 relocs shouldn't really be used in shared
8155 libs as they will result in DT_TEXTREL being set, but
8156 support them anyway. */
8157 goto dodyn;
8158
8159 case R_PPC_TPREL32:
e1918d23 8160 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
7619e7c7
AM
8161 goto dodyn;
8162
8163 case R_PPC_DTPREL32:
e1918d23 8164 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
7619e7c7
AM
8165 goto dodyn;
8166
e515b051
AM
8167 case R_PPC_DTPMOD32:
8168 relocation = 1;
8169 addend = 0;
8170 goto dodyn;
8171
d7128ce4
AM
8172 case R_PPC_REL16:
8173 case R_PPC_REL16_LO:
8174 case R_PPC_REL16_HI:
8175 case R_PPC_REL16_HA:
8176 break;
8177
7619e7c7 8178 case R_PPC_REL32:
625af618
AM
8179 if (h == NULL || h == htab->elf.hgot)
8180 break;
8181 /* fall through */
8182
8183 case R_PPC_ADDR32:
8184 case R_PPC_ADDR16:
8185 case R_PPC_ADDR16_LO:
8186 case R_PPC_ADDR16_HI:
8187 case R_PPC_ADDR16_HA:
8188 case R_PPC_UADDR32:
8189 case R_PPC_UADDR16:
8190 goto dodyn;
8191
b9c361e0
JL
8192 case R_PPC_VLE_REL8:
8193 case R_PPC_VLE_REL15:
8194 case R_PPC_VLE_REL24:
625af618 8195 case R_PPC_REL24:
7619e7c7
AM
8196 case R_PPC_REL14:
8197 case R_PPC_REL14_BRTAKEN:
8198 case R_PPC_REL14_BRNTAKEN:
252b5132
RH
8199 /* If these relocations are not to a named symbol, they can be
8200 handled right here, no need to bother the dynamic linker. */
89200bf8 8201 if (SYMBOL_CALLS_LOCAL (info, h)
3b36f7e6 8202 || h == htab->elf.hgot)
252b5132 8203 break;
70bccea4 8204 /* fall through */
252b5132 8205
7619e7c7 8206 case R_PPC_ADDR24:
7619e7c7
AM
8207 case R_PPC_ADDR14:
8208 case R_PPC_ADDR14_BRTAKEN:
8209 case R_PPC_ADDR14_BRNTAKEN:
625af618
AM
8210 if (h != NULL && !info->shared)
8211 break;
8212 /* fall through */
8213
7619e7c7 8214 dodyn:
3348747a
NS
8215 if ((input_section->flags & SEC_ALLOC) == 0
8216 || is_vxworks_tls)
c87b5a93 8217 break;
c87b5a93 8218
ee05f2fe 8219 if ((info->shared
89200bf8
AM
8220 && !(h != NULL
8221 && ((h->root.type == bfd_link_hash_undefined
8222 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
8223 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
8224 || (h->root.type == bfd_link_hash_undefweak
8225 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
1d483afe 8226 && (must_be_dyn_reloc (info, r_type)
f6c52c13 8227 || !SYMBOL_CALLS_LOCAL (info, h)))
ee05f2fe
AM
8228 || (ELIMINATE_COPY_RELOCS
8229 && !info->shared
ee05f2fe
AM
8230 && h != NULL
8231 && h->dynindx != -1
f5385ebf 8232 && !h->non_got_ref
de972ffa 8233 && !h->def_regular))
252b5132 8234 {
0bb2d96a 8235 int skip;
91d6fa6a 8236 bfd_byte * loc;
252b5132 8237#ifdef DEBUG
55fd94b0
AM
8238 fprintf (stderr, "ppc_elf_relocate_section needs to "
8239 "create relocation for %s\n",
70bccea4
AM
8240 (h && h->root.root.string
8241 ? h->root.root.string : "<unknown>"));
252b5132
RH
8242#endif
8243
8244 /* When generating a shared object, these relocations
70bccea4
AM
8245 are copied into the output file to be resolved at run
8246 time. */
252b5132
RH
8247 if (sreloc == NULL)
8248 {
25f23106
AM
8249 sreloc = elf_section_data (input_section)->sreloc;
8250 if (!htab->elf.dynamic_sections_created)
8251 sreloc = htab->reliplt;
83bac4b0 8252 if (sreloc == NULL)
b34976b6 8253 return FALSE;
252b5132
RH
8254 }
8255
0bb2d96a 8256 skip = 0;
5b914448
AM
8257 outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
8258 input_section,
8259 rel->r_offset);
0bb2d96a
JJ
8260 if (outrel.r_offset == (bfd_vma) -1
8261 || outrel.r_offset == (bfd_vma) -2)
8262 skip = (int) outrel.r_offset;
252b5132
RH
8263 outrel.r_offset += (input_section->output_section->vma
8264 + input_section->output_offset);
8265
8266 if (skip)
8267 memset (&outrel, 0, sizeof outrel);
89200bf8
AM
8268 else if ((h != NULL
8269 && (h->root.type == bfd_link_hash_undefined
8270 || h->root.type == bfd_link_hash_undefweak))
8271 || !SYMBOL_REFERENCES_LOCAL (info, h))
252b5132 8272 {
14acf4dc 8273 BFD_ASSERT (h->dynindx != -1);
7619e7c7 8274 unresolved_reloc = FALSE;
252b5132
RH
8275 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
8276 outrel.r_addend = rel->r_addend;
8277 }
8278 else
8279 {
47388f4c
AM
8280 outrel.r_addend = relocation + rel->r_addend;
8281
25f23106 8282 if (r_type != R_PPC_ADDR32)
252b5132 8283 {
89200bf8 8284 long indx = 0;
252b5132 8285
25f23106
AM
8286 if (ifunc != NULL)
8287 {
8288 /* If we get here when building a static
8289 executable, then the libc startup function
8290 responsible for applying indirect function
8291 relocations is going to complain about
8292 the reloc type.
8293 If we get here when building a dynamic
8294 executable, it will be because we have
8295 a text relocation. The dynamic loader
8296 will set the text segment writable and
8297 non-executable to apply text relocations.
8298 So we'll segfault when trying to run the
8299 indirection function to resolve the reloc. */
25f53a85 8300 info->callbacks->einfo
8de848d8 8301 (_("%P: %H: relocation %s for indirect "
25f53a85
AM
8302 "function %s unsupported\n"),
8303 input_bfd, input_section, rel->r_offset,
25f23106
AM
8304 howto->name,
8305 sym_name);
8306 ret = FALSE;
8307 }
cf35638d 8308 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
89200bf8 8309 ;
252b5132
RH
8310 else if (sec == NULL || sec->owner == NULL)
8311 {
8312 bfd_set_error (bfd_error_bad_value);
89200bf8 8313 ret = FALSE;
252b5132
RH
8314 }
8315 else
8316 {
8317 asection *osec;
8318
47388f4c
AM
8319 /* We are turning this relocation into one
8320 against a section symbol. It would be
8321 proper to subtract the symbol's value,
8322 osec->vma, from the emitted reloc addend,
25f23106
AM
8323 but ld.so expects buggy relocs.
8324 FIXME: Why not always use a zero index? */
252b5132
RH
8325 osec = sec->output_section;
8326 indx = elf_section_data (osec)->dynindx;
74541ad4
AM
8327 if (indx == 0)
8328 {
8329 osec = htab->elf.text_index_section;
8330 indx = elf_section_data (osec)->dynindx;
8331 }
8332 BFD_ASSERT (indx != 0);
252b5132 8333#ifdef DEBUG
74541ad4 8334 if (indx == 0)
e460dd0d 8335 printf ("indx=%ld section=%s flags=%08x name=%s\n",
55fd94b0
AM
8336 indx, osec->name, osec->flags,
8337 h->root.root.string);
252b5132
RH
8338#endif
8339 }
8340
8341 outrel.r_info = ELF32_R_INFO (indx, r_type);
252b5132 8342 }
25f23106
AM
8343 else if (ifunc != NULL)
8344 outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
8345 else
8346 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
252b5132
RH
8347 }
8348
947216bf
AM
8349 loc = sreloc->contents;
8350 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
8351 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
252b5132 8352
2243deae 8353 if (skip == -1)
252b5132 8354 continue;
2243deae
L
8355
8356 /* This reloc will be computed at runtime. We clear the memory
8357 so that it contains predictable value. */
8358 if (! skip
8359 && ((input_section->flags & SEC_ALLOC) != 0
8360 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
8361 {
8362 relocation = howto->pc_relative ? outrel.r_offset : 0;
8363 addend = 0;
8364 break;
8365 }
252b5132 8366 }
252b5132
RH
8367 break;
8368
32af9f6e
AM
8369 case R_PPC_RELAX_PLT:
8370 case R_PPC_RELAX_PLTREL24:
de972ffa
AM
8371 if (h != NULL)
8372 {
32af9f6e
AM
8373 struct plt_entry *ent;
8374 bfd_vma got2_addend = 0;
8375
8376 if (r_type == R_PPC_RELAX_PLTREL24)
8377 {
8378 if (info->shared)
8379 got2_addend = addend;
8380 addend = 0;
8381 }
8382 ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
de972ffa
AM
8383 if (htab->plt_type == PLT_NEW)
8384 relocation = (htab->glink->output_section->vma
8385 + htab->glink->output_offset
8386 + ent->glink_offset);
8387 else
8388 relocation = (htab->plt->output_section->vma
8389 + htab->plt->output_offset
8390 + ent->plt.offset);
8391 }
b4a38de6
AM
8392 /* Fall thru */
8393
32af9f6e
AM
8394 case R_PPC_RELAX:
8395 if (info->shared)
8396 relocation -= (input_section->output_section->vma
8397 + input_section->output_offset
8398 + rel->r_offset - 4);
b4a38de6 8399
9abc968f
AM
8400 {
8401 unsigned long t0;
8402 unsigned long t1;
8403
8404 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
8405 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
8406
8407 /* We're clearing the bits for R_PPC_ADDR16_HA
8408 and R_PPC_ADDR16_LO here. */
8409 t0 &= ~0xffff;
8410 t1 &= ~0xffff;
8411
8412 /* t0 is HA, t1 is LO */
8413 relocation += addend;
8414 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
8415 t1 |= relocation & 0xffff;
8416
8417 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
8418 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
9bc4e62b
NS
8419
8420 /* Rewrite the reloc and convert one of the trailing nop
8421 relocs to describe this relocation. */
8422 BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
8423 /* The relocs are at the bottom 2 bytes */
8424 rel[0].r_offset += 2;
8425 memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
8426 rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
8427 rel[1].r_offset += 4;
8428 rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
8429 rel++;
9abc968f 8430 }
8517fae7 8431 continue;
deaaf2f3 8432
70bccea4 8433 /* Indirect .sdata relocation. */
7619e7c7 8434 case R_PPC_EMB_SDAI16:
c9a2f333 8435 BFD_ASSERT (htab->sdata[0].section != NULL);
bd6c6e2b
AM
8436 if (!is_static_defined (htab->sdata[0].sym))
8437 {
8438 unresolved_reloc = TRUE;
8439 break;
8440 }
7619e7c7 8441 relocation
76750a2f
AM
8442 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
8443 h, relocation, rel);
bd6c6e2b 8444 addend = 0;
252b5132
RH
8445 break;
8446
70bccea4 8447 /* Indirect .sdata2 relocation. */
7619e7c7 8448 case R_PPC_EMB_SDA2I16:
c9a2f333 8449 BFD_ASSERT (htab->sdata[1].section != NULL);
bd6c6e2b
AM
8450 if (!is_static_defined (htab->sdata[1].sym))
8451 {
8452 unresolved_reloc = TRUE;
8453 break;
8454 }
7619e7c7 8455 relocation
76750a2f
AM
8456 = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
8457 h, relocation, rel);
bd6c6e2b 8458 addend = 0;
252b5132
RH
8459 break;
8460
70bccea4
AM
8461 /* Handle the TOC16 reloc. We want to use the offset within the .got
8462 section, not the actual VMA. This is appropriate when generating
8463 an embedded ELF object, for which the .got section acts like the
8464 AIX .toc section. */
7619e7c7 8465 case R_PPC_TOC16: /* phony GOT16 relocations */
3b4f3a11
AM
8466 if (sec == NULL || sec->output_section == NULL)
8467 {
8468 unresolved_reloc = TRUE;
8469 break;
8470 }
a0f49396
NC
8471 BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
8472 ".got") == 0
8473 || strcmp (bfd_get_section_name (sec->owner, sec),
8474 ".cgot") == 0);
252b5132 8475
3b4f3a11 8476 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
252b5132
RH
8477 break;
8478
7619e7c7 8479 case R_PPC_PLTREL24:
e054468f 8480 if (h == NULL || ifunc != NULL)
6d78d0b9 8481 break;
252b5132 8482 /* Relocation is to the entry for this symbol in the
70bccea4 8483 procedure linkage table. */
a6aa5195 8484 {
a877a2b6
AM
8485 struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
8486 info->shared ? addend : 0);
a6aa5195
AM
8487 addend = 0;
8488 if (ent == NULL
8489 || htab->plt == NULL)
8490 {
8491 /* We didn't make a PLT entry for this symbol. This
8492 happens when statically linking PIC code, or when
8493 using -Bsymbolic. */
8494 break;
8495 }
252b5132 8496
a6aa5195 8497 unresolved_reloc = FALSE;
4a3dc543 8498 if (htab->plt_type == PLT_NEW)
a6aa5195
AM
8499 relocation = (htab->glink->output_section->vma
8500 + htab->glink->output_offset
8501 + ent->glink_offset);
8502 else
8503 relocation = (htab->plt->output_section->vma
8504 + htab->plt->output_offset
8505 + ent->plt.offset);
8506 }
8da6118f 8507 break;
252b5132 8508
70bccea4 8509 /* Relocate against _SDA_BASE_. */
7619e7c7 8510 case R_PPC_SDAREL16:
252b5132
RH
8511 {
8512 const char *name;
bd6c6e2b 8513 struct elf_link_hash_entry *sda = htab->sdata[0].sym;
252b5132 8514
bd6c6e2b
AM
8515 if (sec == NULL
8516 || sec->output_section == NULL
8517 || !is_static_defined (sda))
3b4f3a11
AM
8518 {
8519 unresolved_reloc = TRUE;
8520 break;
8521 }
bd6c6e2b 8522 addend -= SYM_VAL (sda);
3b4f3a11 8523
a0f49396 8524 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26 8525 if (! ((CONST_STRNEQ (name, ".sdata")
5f819128 8526 && (name[6] == 0 || name[6] == '.'))
0112cd26 8527 || (CONST_STRNEQ (name, ".sbss")
5f819128 8528 && (name[5] == 0 || name[5] == '.'))))
252b5132 8529 {
25f53a85 8530 info->callbacks->einfo
8de848d8 8531 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8532 "in the wrong output section (%s)\n"),
d003868e 8533 input_bfd,
55fd94b0
AM
8534 sym_name,
8535 howto->name,
8536 name);
252b5132 8537 }
252b5132
RH
8538 }
8539 break;
8540
70bccea4 8541 /* Relocate against _SDA2_BASE_. */
7619e7c7 8542 case R_PPC_EMB_SDA2REL:
252b5132
RH
8543 {
8544 const char *name;
bd6c6e2b 8545 struct elf_link_hash_entry *sda = htab->sdata[1].sym;
252b5132 8546
bd6c6e2b
AM
8547 if (sec == NULL
8548 || sec->output_section == NULL
8549 || !is_static_defined (sda))
3b4f3a11
AM
8550 {
8551 unresolved_reloc = TRUE;
8552 break;
8553 }
bd6c6e2b 8554 addend -= SYM_VAL (sda);
3b4f3a11 8555
a0f49396 8556 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26
NC
8557 if (! (CONST_STRNEQ (name, ".sdata2")
8558 || CONST_STRNEQ (name, ".sbss2")))
252b5132 8559 {
25f53a85 8560 info->callbacks->einfo
8de848d8 8561 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8562 "in the wrong output section (%s)\n"),
d003868e 8563 input_bfd,
55fd94b0
AM
8564 sym_name,
8565 howto->name,
8566 name);
252b5132 8567 }
252b5132
RH
8568 }
8569 break;
8570
b9c361e0
JL
8571 case R_PPC_VLE_LO16A:
8572 relocation = (relocation + addend) & 0xffff;
8573 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8574 relocation, split16a_type);
8575 continue;
8576
8577 case R_PPC_VLE_LO16D:
8578 relocation = (relocation + addend) & 0xffff;
8579 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8580 relocation, split16d_type);
8581 continue;
8582
8583 case R_PPC_VLE_HI16A:
8584 relocation = ((relocation + addend) >> 16) & 0xffff;
8585 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8586 relocation, split16a_type);
8587 continue;
8588
8589 case R_PPC_VLE_HI16D:
8590 relocation = ((relocation + addend) >> 16) & 0xffff;
8591 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8592 relocation, split16d_type);
8593 continue;
8594
8595 case R_PPC_VLE_HA16A:
8596 {
8597 bfd_vma value = relocation + addend;
8598 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8599 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8600 value, split16a_type);
8601 }
8602 continue;
8603
8604 case R_PPC_VLE_HA16D:
8605 {
8606 bfd_vma value = relocation + addend;
8607 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8608 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8609 value, split16d_type);
8610 }
8611 continue;
8612
70bccea4 8613 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
7619e7c7 8614 case R_PPC_EMB_SDA21:
b9c361e0 8615 case R_PPC_VLE_SDA21:
7619e7c7 8616 case R_PPC_EMB_RELSDA:
b9c361e0 8617 case R_PPC_VLE_SDA21_LO:
252b5132
RH
8618 {
8619 const char *name;
8620 int reg;
bd6c6e2b 8621 struct elf_link_hash_entry *sda = NULL;
252b5132 8622
3b4f3a11
AM
8623 if (sec == NULL || sec->output_section == NULL)
8624 {
8625 unresolved_reloc = TRUE;
8626 break;
8627 }
8628
a0f49396 8629 name = bfd_get_section_name (output_bfd, sec->output_section);
0112cd26 8630 if (((CONST_STRNEQ (name, ".sdata")
5f819128 8631 && (name[6] == 0 || name[6] == '.'))
0112cd26 8632 || (CONST_STRNEQ (name, ".sbss")
5f819128 8633 && (name[5] == 0 || name[5] == '.'))))
252b5132
RH
8634 {
8635 reg = 13;
bd6c6e2b 8636 sda = htab->sdata[0].sym;
252b5132 8637 }
0112cd26
NC
8638 else if (CONST_STRNEQ (name, ".sdata2")
8639 || CONST_STRNEQ (name, ".sbss2"))
252b5132
RH
8640 {
8641 reg = 2;
bd6c6e2b 8642 sda = htab->sdata[1].sym;
252b5132 8643 }
8da6118f
KH
8644 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
8645 || strcmp (name, ".PPC.EMB.sbss0") == 0)
252b5132
RH
8646 {
8647 reg = 0;
8648 }
252b5132
RH
8649 else
8650 {
25f53a85 8651 info->callbacks->einfo
8de848d8 8652 (_("%P: %B: the target (%s) of a %s relocation is "
25f53a85 8653 "in the wrong output section (%s)\n"),
d003868e 8654 input_bfd,
55fd94b0
AM
8655 sym_name,
8656 howto->name,
8657 name);
252b5132
RH
8658
8659 bfd_set_error (bfd_error_bad_value);
b34976b6 8660 ret = FALSE;
252b5132
RH
8661 continue;
8662 }
8663
bd6c6e2b
AM
8664 if (sda != NULL)
8665 {
8666 if (!is_static_defined (sda))
8667 {
8668 unresolved_reloc = TRUE;
8669 break;
8670 }
8671 addend -= SYM_VAL (sda);
8672 }
8673
b9c361e0
JL
8674 if (reg == 0
8675 && (r_type == R_PPC_VLE_SDA21
8676 || r_type == R_PPC_VLE_SDA21_LO))
8677 {
8678 /* Use the split20 format. */
8679 bfd_vma insn, bits12to15, bits21to31;
8680 bfd_vma value = (relocation + rel->r_offset) & 0xffff;
8681 /* Propagate sign bit, if necessary. */
8682 insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
8683 bits12to15 = value & 0x700;
8684 bits21to31 = value & 0x7ff;
8685 insn |= bits12to15;
8686 insn |= bits21to31;
8687 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
8688 continue;
8689 }
8690 else if (r_type == R_PPC_EMB_SDA21
8691 || r_type == R_PPC_VLE_SDA21
8692 || r_type == R_PPC_VLE_SDA21_LO)
91d6fa6a
NC
8693 {
8694 bfd_vma insn; /* Fill in register field. */
8695
7619e7c7 8696 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
252b5132 8697 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
7619e7c7 8698 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
252b5132
RH
8699 }
8700 }
8701 break;
8702
b9c361e0
JL
8703 case R_PPC_VLE_SDAREL_LO16A:
8704 case R_PPC_VLE_SDAREL_LO16D:
8705 case R_PPC_VLE_SDAREL_HI16A:
8706 case R_PPC_VLE_SDAREL_HI16D:
8707 case R_PPC_VLE_SDAREL_HA16A:
8708 case R_PPC_VLE_SDAREL_HA16D:
8709 {
8710 bfd_vma value;
8711 const char *name;
8712 //int reg;
8713 struct elf_link_hash_entry *sda = NULL;
8714
8715 if (sec == NULL || sec->output_section == NULL)
8716 {
8717 unresolved_reloc = TRUE;
8718 break;
8719 }
8720
a0f49396 8721 name = bfd_get_section_name (output_bfd, sec->output_section);
b9c361e0
JL
8722 if (((CONST_STRNEQ (name, ".sdata")
8723 && (name[6] == 0 || name[6] == '.'))
8724 || (CONST_STRNEQ (name, ".sbss")
8725 && (name[5] == 0 || name[5] == '.'))))
8726 {
8727 //reg = 13;
8728 sda = htab->sdata[0].sym;
8729 }
8730 else if (CONST_STRNEQ (name, ".sdata2")
8731 || CONST_STRNEQ (name, ".sbss2"))
8732 {
8733 //reg = 2;
8734 sda = htab->sdata[1].sym;
8735 }
8736 else
8737 {
8738 (*_bfd_error_handler)
8739 (_("%B: the target (%s) of a %s relocation is "
8740 "in the wrong output section (%s)"),
8741 input_bfd,
8742 sym_name,
8743 howto->name,
8744 name);
8745
8746 bfd_set_error (bfd_error_bad_value);
8747 ret = FALSE;
8748 continue;
8749 }
8750
8751 if (sda != NULL)
8752 {
8753 if (!is_static_defined (sda))
8754 {
8755 unresolved_reloc = TRUE;
8756 break;
8757 }
8758 }
8759
8760 value = sda->root.u.def.section->output_section->vma
8761 + sda->root.u.def.section->output_offset;
8762
8763 if (r_type == R_PPC_VLE_SDAREL_LO16A)
8764 {
8765 value = (value + addend) & 0xffff;
8766 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8767 value, split16a_type);
8768 }
8769 else if (r_type == R_PPC_VLE_SDAREL_LO16D)
8770 {
8771 value = (value + addend) & 0xffff;
8772 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8773 value, split16d_type);
8774 }
8775 else if (r_type == R_PPC_VLE_SDAREL_HI16A)
8776 {
8777 value = ((value + addend) >> 16) & 0xffff;
8778 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8779 value, split16a_type);
8780 }
8781 else if (r_type == R_PPC_VLE_SDAREL_HI16D)
8782 {
8783 value = ((value + addend) >> 16) & 0xffff;
8784 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8785 value, split16d_type);
8786 }
8787 else if (r_type == R_PPC_VLE_SDAREL_HA16A)
8788 {
8789 value += addend;
8790 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8791 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8792 value, split16a_type);
8793 }
8794 else if (r_type == R_PPC_VLE_SDAREL_HA16D)
8795 {
8796 value += addend;
8797 value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
8798 ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
8799 value, split16d_type);
8800 }
8801 }
8802 continue;
8803
70bccea4 8804 /* Relocate against the beginning of the section. */
7619e7c7
AM
8805 case R_PPC_SECTOFF:
8806 case R_PPC_SECTOFF_LO:
8807 case R_PPC_SECTOFF_HI:
8808 case R_PPC_SECTOFF_HA:
3b4f3a11
AM
8809 if (sec == NULL || sec->output_section == NULL)
8810 {
8811 unresolved_reloc = TRUE;
8812 break;
8813 }
252b5132 8814 addend -= sec->output_section->vma;
252b5132
RH
8815 break;
8816
70bccea4 8817 /* Negative relocations. */
7619e7c7
AM
8818 case R_PPC_EMB_NADDR32:
8819 case R_PPC_EMB_NADDR16:
8820 case R_PPC_EMB_NADDR16_LO:
8821 case R_PPC_EMB_NADDR16_HI:
8822 case R_PPC_EMB_NADDR16_HA:
8da6118f 8823 addend -= 2 * relocation;
252b5132
RH
8824 break;
8825
7619e7c7
AM
8826 case R_PPC_COPY:
8827 case R_PPC_GLOB_DAT:
8828 case R_PPC_JMP_SLOT:
8829 case R_PPC_RELATIVE:
e054468f 8830 case R_PPC_IRELATIVE:
7619e7c7
AM
8831 case R_PPC_PLT32:
8832 case R_PPC_PLTREL32:
8833 case R_PPC_PLT16_LO:
8834 case R_PPC_PLT16_HI:
8835 case R_PPC_PLT16_HA:
8836 case R_PPC_ADDR30:
8837 case R_PPC_EMB_RELSEC16:
8838 case R_PPC_EMB_RELST_LO:
8839 case R_PPC_EMB_RELST_HI:
8840 case R_PPC_EMB_RELST_HA:
8841 case R_PPC_EMB_BIT_FLD:
25f53a85 8842 info->callbacks->einfo
8de848d8 8843 (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
d003868e 8844 input_bfd,
7619e7c7
AM
8845 howto->name,
8846 sym_name);
252b5132
RH
8847
8848 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8849 ret = FALSE;
252b5132 8850 continue;
7619e7c7 8851 }
252b5132 8852
7619e7c7
AM
8853 /* Do any further special processing. */
8854 switch (r_type)
8855 {
8856 default:
8857 break;
8858
8859 case R_PPC_ADDR16_HA:
d7128ce4 8860 case R_PPC_REL16_HA:
7619e7c7
AM
8861 case R_PPC_SECTOFF_HA:
8862 case R_PPC_TPREL16_HA:
8863 case R_PPC_DTPREL16_HA:
7619e7c7
AM
8864 case R_PPC_EMB_NADDR16_HA:
8865 case R_PPC_EMB_RELST_HA:
8866 /* It's just possible that this symbol is a weak symbol
7b609f53 8867 that's not actually defined anywhere. In that case,
7619e7c7
AM
8868 'sec' would be NULL, and we should leave the symbol
8869 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
8870 if (sec == NULL)
8871 break;
8872 /* Fall thru */
8873
8874 case R_PPC_PLT16_HA:
8875 case R_PPC_GOT16_HA:
8876 case R_PPC_GOT_TLSGD16_HA:
8877 case R_PPC_GOT_TLSLD16_HA:
8878 case R_PPC_GOT_TPREL16_HA:
8879 case R_PPC_GOT_DTPREL16_HA:
8880 /* Add 0x10000 if sign bit in 0:15 is set.
8881 Bits 0:15 are not used. */
8882 addend += 0x8000;
7619e7c7 8883 break;
1fe532cf
AM
8884
8885 case R_PPC_ADDR16:
8886 case R_PPC_ADDR16_LO:
8887 case R_PPC_GOT16:
8888 case R_PPC_GOT16_LO:
8889 case R_PPC_SDAREL16:
8890 case R_PPC_SECTOFF:
8891 case R_PPC_SECTOFF_LO:
8892 case R_PPC_DTPREL16:
8893 case R_PPC_DTPREL16_LO:
8894 case R_PPC_TPREL16:
8895 case R_PPC_TPREL16_LO:
8896 case R_PPC_GOT_TLSGD16:
8897 case R_PPC_GOT_TLSGD16_LO:
8898 case R_PPC_GOT_TLSLD16:
8899 case R_PPC_GOT_TLSLD16_LO:
8900 case R_PPC_GOT_DTPREL16:
8901 case R_PPC_GOT_DTPREL16_LO:
8902 case R_PPC_GOT_TPREL16:
8903 case R_PPC_GOT_TPREL16_LO:
8904 {
8905 /* The 32-bit ABI lacks proper relocations to deal with
8906 certain 64-bit instructions. Prevent damage to bits
8907 that make up part of the insn opcode. */
8908 unsigned int insn, mask, lobit;
8909
8910 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
8911 mask = 0;
8912 if (is_insn_ds_form (insn))
8913 mask = 3;
8914 else if (is_insn_dq_form (insn))
8915 mask = 15;
8916 else
8917 break;
8918 lobit = mask & (relocation + addend);
8919 if (lobit != 0)
8920 {
8921 addend -= lobit;
8922 info->callbacks->einfo
8923 (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
8924 input_bfd, input_section, rel->r_offset,
8925 howto->name, sym_name, mask + 1);
8926 bfd_set_error (bfd_error_bad_value);
8927 ret = FALSE;
8928 }
8929 addend += insn & mask;
8930 }
8931 break;
252b5132
RH
8932 }
8933
252b5132 8934#ifdef DEBUG
55fd94b0
AM
8935 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
8936 "offset = %ld, addend = %ld\n",
252b5132 8937 howto->name,
8da6118f 8938 (int) r_type,
252b5132
RH
8939 sym_name,
8940 r_symndx,
7619e7c7 8941 (long) rel->r_offset,
8da6118f 8942 (long) addend);
252b5132
RH
8943#endif
8944
7619e7c7
AM
8945 if (unresolved_reloc
8946 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM
8947 && h->def_dynamic)
8948 && _bfd_elf_section_offset (output_bfd, info, input_section,
8949 rel->r_offset) != (bfd_vma) -1)
7619e7c7 8950 {
25f53a85 8951 info->callbacks->einfo
8de848d8 8952 (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
25f53a85 8953 input_bfd, input_section, rel->r_offset,
7b609f53 8954 howto->name,
7619e7c7
AM
8955 sym_name);
8956 ret = FALSE;
8957 }
8958
252b5132
RH
8959 r = _bfd_final_link_relocate (howto,
8960 input_bfd,
8961 input_section,
8962 contents,
7619e7c7 8963 rel->r_offset,
252b5132
RH
8964 relocation,
8965 addend);
8966
7619e7c7 8967 if (r != bfd_reloc_ok)
252b5132 8968 {
7619e7c7 8969 if (r == bfd_reloc_overflow)
252b5132 8970 {
7619e7c7
AM
8971 if (warned)
8972 continue;
8973 if (h != NULL
8974 && h->root.type == bfd_link_hash_undefweak
dc1bc0c9
RH
8975 && howto->pc_relative)
8976 {
8977 /* Assume this is a call protected by other code that
8978 detect the symbol is undefined. If this is the case,
8979 we can safely ignore the overflow. If not, the
8980 program is hosed anyway, and a little warning isn't
8981 going to help. */
252b5132 8982
dc1bc0c9
RH
8983 continue;
8984 }
252b5132 8985
7619e7c7 8986 if (! (*info->callbacks->reloc_overflow) (info,
dfeffb9f 8987 (h ? &h->root : NULL),
7619e7c7
AM
8988 sym_name,
8989 howto->name,
8990 rel->r_addend,
8991 input_bfd,
8992 input_section,
8993 rel->r_offset))
8994 return FALSE;
dc1bc0c9
RH
8995 }
8996 else
8997 {
25f53a85 8998 info->callbacks->einfo
8de848d8 8999 (_("%P: %H: %s reloc against `%s': error %d\n"),
25f53a85
AM
9000 input_bfd, input_section, rel->r_offset,
9001 howto->name, sym_name, (int) r);
7619e7c7 9002 ret = FALSE;
252b5132
RH
9003 }
9004 }
9005 }
9006
252b5132
RH
9007#ifdef DEBUG
9008 fprintf (stderr, "\n");
9009#endif
9010
9011 return ret;
9012}
252b5132 9013\f
25dbc73a
AM
9014/* Finish up dynamic symbol handling. We set the contents of various
9015 dynamic sections here. */
c5fccbec 9016
b34976b6 9017static bfd_boolean
25dbc73a
AM
9018ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
9019 struct bfd_link_info *info,
9020 struct elf_link_hash_entry *h,
9021 Elf_Internal_Sym *sym)
e1a9cb8e 9022{
25dbc73a 9023 struct ppc_elf_link_hash_table *htab;
a6aa5195
AM
9024 struct plt_entry *ent;
9025 bfd_boolean doneone;
e1a9cb8e 9026
25dbc73a
AM
9027#ifdef DEBUG
9028 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
9029 h->root.root.string);
9030#endif
e1a9cb8e 9031
25dbc73a
AM
9032 htab = ppc_elf_hash_table (info);
9033 BFD_ASSERT (htab->elf.dynobj != NULL);
e1a9cb8e 9034
a6aa5195
AM
9035 doneone = FALSE;
9036 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9037 if (ent->plt.offset != (bfd_vma) -1)
9038 {
9039 if (!doneone)
9040 {
9041 Elf_Internal_Rela rela;
9042 bfd_byte *loc;
9043 bfd_vma reloc_index;
e1a9cb8e 9044
e054468f 9045 if (htab->plt_type == PLT_NEW
25f23106
AM
9046 || !htab->elf.dynamic_sections_created
9047 || h->dynindx == -1)
9d8504b1
PB
9048 reloc_index = ent->plt.offset / 4;
9049 else
9050 {
9051 reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
9052 / htab->plt_slot_size);
9053 if (reloc_index > PLT_NUM_SINGLE_ENTRIES
4a3dc543 9054 && htab->plt_type == PLT_OLD)
9d8504b1
PB
9055 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
9056 }
9057
a6aa5195
AM
9058 /* This symbol has an entry in the procedure linkage table.
9059 Set it up. */
e054468f 9060 if (htab->plt_type == PLT_VXWORKS
25f23106
AM
9061 && htab->elf.dynamic_sections_created
9062 && h->dynindx != -1)
a6aa5195 9063 {
9d8504b1
PB
9064 bfd_vma got_offset;
9065 const bfd_vma *plt_entry;
5b914448 9066
9d8504b1
PB
9067 /* The first three entries in .got.plt are reserved. */
9068 got_offset = (reloc_index + 3) * 4;
9069
9070 /* Use the right PLT. */
9071 plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
9072 : ppc_elf_vxworks_plt_entry;
9073
9074 /* Fill in the .plt on VxWorks. */
9075 if (info->shared)
9076 {
9d8504b1 9077 bfd_put_32 (output_bfd,
e87d4038 9078 plt_entry[0] | PPC_HA (got_offset),
9d8504b1
PB
9079 htab->plt->contents + ent->plt.offset + 0);
9080 bfd_put_32 (output_bfd,
e87d4038 9081 plt_entry[1] | PPC_LO (got_offset),
9d8504b1
PB
9082 htab->plt->contents + ent->plt.offset + 4);
9083 }
9084 else
9085 {
e87d4038 9086 bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
9d8504b1
PB
9087
9088 bfd_put_32 (output_bfd,
e87d4038 9089 plt_entry[0] | PPC_HA (got_loc),
9d8504b1
PB
9090 htab->plt->contents + ent->plt.offset + 0);
9091 bfd_put_32 (output_bfd,
e87d4038 9092 plt_entry[1] | PPC_LO (got_loc),
9d8504b1
PB
9093 htab->plt->contents + ent->plt.offset + 4);
9094 }
9095
9096 bfd_put_32 (output_bfd, plt_entry[2],
9097 htab->plt->contents + ent->plt.offset + 8);
9098 bfd_put_32 (output_bfd, plt_entry[3],
9099 htab->plt->contents + ent->plt.offset + 12);
9100
9101 /* This instruction is an immediate load. The value loaded is
9102 the byte offset of the R_PPC_JMP_SLOT relocation from the
9103 start of the .rela.plt section. The value is stored in the
9104 low-order 16 bits of the load instruction. */
9105 /* NOTE: It appears that this is now an index rather than a
9106 prescaled offset. */
5b914448 9107 bfd_put_32 (output_bfd,
9d8504b1
PB
9108 plt_entry[4] | reloc_index,
9109 htab->plt->contents + ent->plt.offset + 16);
9110 /* This instruction is a PC-relative branch whose target is
9111 the start of the PLT section. The address of this branch
9112 instruction is 20 bytes beyond the start of this PLT entry.
9113 The address is encoded in bits 6-29, inclusive. The value
9114 stored is right-shifted by two bits, permitting a 26-bit
9115 offset. */
5b914448
AM
9116 bfd_put_32 (output_bfd,
9117 (plt_entry[5]
9d8504b1
PB
9118 | (-(ent->plt.offset + 20) & 0x03fffffc)),
9119 htab->plt->contents + ent->plt.offset + 20);
9120 bfd_put_32 (output_bfd, plt_entry[6],
9121 htab->plt->contents + ent->plt.offset + 24);
9122 bfd_put_32 (output_bfd, plt_entry[7],
9123 htab->plt->contents + ent->plt.offset + 28);
9124
9125 /* Fill in the GOT entry corresponding to this PLT slot with
a8685210 9126 the address immediately after the "bctr" instruction
9d8504b1
PB
9127 in this PLT entry. */
9128 bfd_put_32 (output_bfd, (htab->plt->output_section->vma
9129 + htab->plt->output_offset
9130 + ent->plt.offset + 16),
9131 htab->sgotplt->contents + got_offset);
9132
9133 if (!info->shared)
9134 {
9135 /* Fill in a couple of entries in .rela.plt.unloaded. */
9136 loc = htab->srelplt2->contents
9137 + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
9138 * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
9139 * sizeof (Elf32_External_Rela));
9140
9141 /* Provide the @ha relocation for the first instruction. */
9142 rela.r_offset = (htab->plt->output_section->vma
9143 + htab->plt->output_offset
9144 + ent->plt.offset + 2);
636ce3f5 9145 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
9146 R_PPC_ADDR16_HA);
9147 rela.r_addend = got_offset;
9148 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9149 loc += sizeof (Elf32_External_Rela);
9150
9151 /* Provide the @l relocation for the second instruction. */
9152 rela.r_offset = (htab->plt->output_section->vma
9153 + htab->plt->output_offset
9154 + ent->plt.offset + 6);
636ce3f5 9155 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
9d8504b1
PB
9156 R_PPC_ADDR16_LO);
9157 rela.r_addend = got_offset;
9158 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9159 loc += sizeof (Elf32_External_Rela);
9160
9161 /* Provide a relocation for the GOT entry corresponding to this
9162 PLT slot. Point it at the middle of the .plt entry. */
9163 rela.r_offset = (htab->sgotplt->output_section->vma
9164 + htab->sgotplt->output_offset
9165 + got_offset);
7325306f 9166 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
9d8504b1
PB
9167 R_PPC_ADDR32);
9168 rela.r_addend = ent->plt.offset + 16;
9169 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9170 }
9171
9172 /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
9173 In particular, the offset for the relocation is not the
9174 address of the PLT entry for this function, as specified
9175 by the ABI. Instead, the offset is set to the address of
9176 the GOT slot for this function. See EABI 4.4.4.1. */
9177 rela.r_offset = (htab->sgotplt->output_section->vma
9178 + htab->sgotplt->output_offset
9179 + got_offset);
9180
a6aa5195
AM
9181 }
9182 else
9183 {
e054468f 9184 asection *splt = htab->plt;
25f23106
AM
9185 if (!htab->elf.dynamic_sections_created
9186 || h->dynindx == -1)
e054468f
AM
9187 splt = htab->iplt;
9188
9189 rela.r_offset = (splt->output_section->vma
9190 + splt->output_offset
9d8504b1 9191 + ent->plt.offset);
e054468f 9192 if (htab->plt_type == PLT_OLD
25f23106
AM
9193 || !htab->elf.dynamic_sections_created
9194 || h->dynindx == -1)
9d8504b1
PB
9195 {
9196 /* We don't need to fill in the .plt. The ppc dynamic
9197 linker will fill it in. */
9198 }
9199 else
9200 {
9201 bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
9202 + htab->glink->output_section->vma
9203 + htab->glink->output_offset);
9204 bfd_put_32 (output_bfd, val,
e054468f 9205 splt->contents + ent->plt.offset);
9d8504b1 9206 }
a6aa5195 9207 }
e1a9cb8e 9208
a6aa5195 9209 /* Fill in the entry in the .rela.plt section. */
a6aa5195 9210 rela.r_addend = 0;
e054468f
AM
9211 if (!htab->elf.dynamic_sections_created
9212 || h->dynindx == -1)
9213 {
9214 BFD_ASSERT (h->type == STT_GNU_IFUNC
9215 && h->def_regular
9216 && (h->root.type == bfd_link_hash_defined
9217 || h->root.type == bfd_link_hash_defweak));
9218 rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
9219 rela.r_addend = SYM_VAL (h);
9220 }
9221 else
9222 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
e1a9cb8e 9223
25f23106
AM
9224 if (!htab->elf.dynamic_sections_created
9225 || h->dynindx == -1)
9226 loc = (htab->reliplt->contents
9227 + (htab->reliplt->reloc_count++
9228 * sizeof (Elf32_External_Rela)));
e054468f 9229 else
25f23106
AM
9230 loc = (htab->relplt->contents
9231 + reloc_index * sizeof (Elf32_External_Rela));
a6aa5195 9232 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
e1a9cb8e 9233
a6aa5195
AM
9234 if (!h->def_regular)
9235 {
0eb4a168
AM
9236 /* Mark the symbol as undefined, rather than as
9237 defined in the .plt section. Leave the value if
9238 there were any relocations where pointer equality
9239 matters (this is a clue for the dynamic linker, to
9240 make function pointer comparisons work between an
9241 application and shared library), otherwise set it
9242 to zero. */
a6aa5195 9243 sym->st_shndx = SHN_UNDEF;
0eb4a168 9244 if (!h->pointer_equality_needed)
a6aa5195 9245 sym->st_value = 0;
0eb4a168
AM
9246 else if (!h->ref_regular_nonweak)
9247 {
625af618
AM
9248 /* This breaks function pointer comparisons, but
9249 that is better than breaking tests for a NULL
0eb4a168 9250 function pointer. */
0eb4a168
AM
9251 sym->st_value = 0;
9252 }
a6aa5195 9253 }
de972ffa
AM
9254 else if (h->type == STT_GNU_IFUNC
9255 && !info->shared)
9256 {
9257 /* Set the value of ifunc symbols in a non-pie
9258 executable to the glink entry. This is to avoid
9259 text relocations. We can't do this for ifunc in
9260 allocate_dynrelocs, as we do for normal dynamic
9261 function symbols with plt entries, because we need
9262 to keep the original value around for the ifunc
9263 relocation. */
9264 sym->st_shndx = (_bfd_elf_section_from_bfd_section
9265 (output_bfd, htab->glink->output_section));
5b914448
AM
9266 sym->st_value = (ent->glink_offset
9267 + htab->glink->output_offset
de972ffa
AM
9268 + htab->glink->output_section->vma);
9269 }
a6aa5195
AM
9270 doneone = TRUE;
9271 }
e1a9cb8e 9272
e054468f 9273 if (htab->plt_type == PLT_NEW
25f23106
AM
9274 || !htab->elf.dynamic_sections_created
9275 || h->dynindx == -1)
a6aa5195 9276 {
a7f2871e 9277 unsigned char *p;
e054468f 9278 asection *splt = htab->plt;
25f23106
AM
9279 if (!htab->elf.dynamic_sections_created
9280 || h->dynindx == -1)
e054468f 9281 splt = htab->iplt;
e1a9cb8e 9282
a7f2871e
AM
9283 p = (unsigned char *) htab->glink->contents + ent->glink_offset;
9284
9285 if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
9286 {
9287 bfd_put_32 (output_bfd, LWZ_11_3, p);
9288 p += 4;
9289 bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
9290 p += 4;
9291 bfd_put_32 (output_bfd, MR_0_3, p);
9292 p += 4;
9293 bfd_put_32 (output_bfd, CMPWI_11_0, p);
9294 p += 4;
9295 bfd_put_32 (output_bfd, ADD_3_12_2, p);
9296 p += 4;
9297 bfd_put_32 (output_bfd, BEQLR, p);
9298 p += 4;
9299 bfd_put_32 (output_bfd, MR_3_0, p);
9300 p += 4;
9301 bfd_put_32 (output_bfd, NOP, p);
9302 p += 4;
9303 }
9304
9305 write_glink_stub (ent, splt, p, info);
e1a9cb8e 9306
a877a2b6 9307 if (!info->shared)
e054468f
AM
9308 /* We only need one non-PIC glink stub. */
9309 break;
a6aa5195
AM
9310 }
9311 else
9312 break;
9313 }
e1a9cb8e 9314
25dbc73a
AM
9315 if (h->needs_copy)
9316 {
9317 asection *s;
9318 Elf_Internal_Rela rela;
9319 bfd_byte *loc;
e1a9cb8e 9320
25dbc73a 9321 /* This symbols needs a copy reloc. Set it up. */
e1a9cb8e 9322
25dbc73a
AM
9323#ifdef DEBUG
9324 fprintf (stderr, ", copy");
9325#endif
e1a9cb8e 9326
25dbc73a 9327 BFD_ASSERT (h->dynindx != -1);
86bbe32f 9328
4dc4a9a5 9329 if (ppc_elf_hash_entry (h)->has_sda_refs)
25dbc73a
AM
9330 s = htab->relsbss;
9331 else
9332 s = htab->relbss;
9333 BFD_ASSERT (s != NULL);
e1a9cb8e 9334
e87d4038 9335 rela.r_offset = SYM_VAL (h);
25dbc73a
AM
9336 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
9337 rela.r_addend = 0;
9338 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
9339 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9340 }
e1a9cb8e 9341
25dbc73a
AM
9342#ifdef DEBUG
9343 fprintf (stderr, "\n");
9344#endif
e1a9cb8e 9345
25dbc73a
AM
9346 return TRUE;
9347}
9348\f
9349static enum elf_reloc_type_class
9350ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
e1a9cb8e 9351{
25dbc73a
AM
9352 switch (ELF32_R_TYPE (rela->r_info))
9353 {
9354 case R_PPC_RELATIVE:
9355 return reloc_class_relative;
9356 case R_PPC_REL24:
9357 case R_PPC_ADDR24:
9358 case R_PPC_JMP_SLOT:
9359 return reloc_class_plt;
9360 case R_PPC_COPY:
9361 return reloc_class_copy;
9362 default:
9363 return reloc_class_normal;
9364 }
e1a9cb8e 9365}
25dbc73a
AM
9366\f
9367/* Finish up the dynamic sections. */
e1a9cb8e 9368
25dbc73a
AM
9369static bfd_boolean
9370ppc_elf_finish_dynamic_sections (bfd *output_bfd,
9371 struct bfd_link_info *info)
e1a9cb8e 9372{
25dbc73a 9373 asection *sdyn;
9d8504b1 9374 asection *splt;
25dbc73a 9375 struct ppc_elf_link_hash_table *htab;
1fe44d79 9376 bfd_vma got;
e87d4038
AM
9377 bfd *dynobj;
9378 bfd_boolean ret = TRUE;
e1a9cb8e 9379
25dbc73a
AM
9380#ifdef DEBUG
9381 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
9382#endif
6b0817e5 9383
25dbc73a 9384 htab = ppc_elf_hash_table (info);
9d8504b1 9385 dynobj = elf_hash_table (info)->dynobj;
3d4d4302 9386 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
9d8504b1 9387 if (htab->is_vxworks)
3d4d4302 9388 splt = bfd_get_linker_section (dynobj, ".plt");
9d8504b1
PB
9389 else
9390 splt = NULL;
e1a9cb8e 9391
1fe44d79
AM
9392 got = 0;
9393 if (htab->elf.hgot != NULL)
e87d4038 9394 got = SYM_VAL (htab->elf.hgot);
1fe44d79 9395
25dbc73a 9396 if (htab->elf.dynamic_sections_created)
e1a9cb8e 9397 {
25dbc73a 9398 Elf32_External_Dyn *dyncon, *dynconend;
e1a9cb8e 9399
25dbc73a 9400 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
86bbe32f 9401
25dbc73a
AM
9402 dyncon = (Elf32_External_Dyn *) sdyn->contents;
9403 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
9404 for (; dyncon < dynconend; dyncon++)
9405 {
9406 Elf_Internal_Dyn dyn;
9407 asection *s;
e1a9cb8e 9408
9d8504b1 9409 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
86bbe32f 9410
25dbc73a
AM
9411 switch (dyn.d_tag)
9412 {
9413 case DT_PLTGOT:
9d8504b1
PB
9414 if (htab->is_vxworks)
9415 s = htab->sgotplt;
9416 else
9417 s = htab->plt;
25dbc73a
AM
9418 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9419 break;
86bbe32f 9420
25dbc73a
AM
9421 case DT_PLTRELSZ:
9422 dyn.d_un.d_val = htab->relplt->size;
9423 break;
e1a9cb8e 9424
25dbc73a
AM
9425 case DT_JMPREL:
9426 s = htab->relplt;
9427 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
9428 break;
2f89ff8d 9429
1fe44d79
AM
9430 case DT_PPC_GOT:
9431 dyn.d_un.d_ptr = got;
d7128ce4
AM
9432 break;
9433
9d8504b1
PB
9434 case DT_RELASZ:
9435 if (htab->is_vxworks)
9436 {
9437 if (htab->relplt)
9438 dyn.d_un.d_ptr -= htab->relplt->size;
9439 break;
9440 }
9441 continue;
9442
25dbc73a 9443 default:
7a2b07ff
NS
9444 if (htab->is_vxworks
9445 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
9446 break;
25dbc73a
AM
9447 continue;
9448 }
4c45e5c9 9449
25dbc73a
AM
9450 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
9451 }
9452 }
4c45e5c9 9453
3b36f7e6 9454 if (htab->got != NULL)
25dbc73a 9455 {
e79f5955
AM
9456 if (htab->elf.hgot->root.u.def.section == htab->got
9457 || htab->elf.hgot->root.u.def.section == htab->sgotplt)
e87d4038 9458 {
e79f5955 9459 unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
2f89ff8d 9460
e87d4038
AM
9461 p += htab->elf.hgot->root.u.def.value;
9462 if (htab->plt_type == PLT_OLD)
e79f5955
AM
9463 {
9464 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
9465 so that a function can easily find the address of
9466 _GLOBAL_OFFSET_TABLE_. */
9467 BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
9468 < htab->elf.hgot->root.u.def.section->size);
9469 bfd_put_32 (output_bfd, 0x4e800021, p - 4);
9470 }
3b36f7e6 9471
e87d4038 9472 if (sdyn != NULL)
e79f5955
AM
9473 {
9474 bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
9475 BFD_ASSERT (htab->elf.hgot->root.u.def.value
9476 < htab->elf.hgot->root.u.def.section->size);
9477 bfd_put_32 (output_bfd, val, p);
9478 }
e87d4038
AM
9479 }
9480 else
9481 {
8de848d8 9482 info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
25f53a85
AM
9483 htab->elf.hgot->root.root.string,
9484 (htab->sgotplt != NULL
9485 ? htab->sgotplt->name : htab->got->name));
e87d4038
AM
9486 bfd_set_error (bfd_error_bad_value);
9487 ret = FALSE;
9488 }
25dbc73a
AM
9489
9490 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
9491 }
9492
9d8504b1
PB
9493 /* Fill in the first entry in the VxWorks procedure linkage table. */
9494 if (splt && splt->size > 0)
9495 {
9496 /* Use the right PLT. */
5b914448
AM
9497 const bfd_vma *plt_entry = (info->shared
9498 ? ppc_elf_vxworks_pic_plt0_entry
9499 : ppc_elf_vxworks_plt0_entry);
9d8504b1
PB
9500
9501 if (!info->shared)
9502 {
e87d4038 9503 bfd_vma got_value = SYM_VAL (htab->elf.hgot);
9d8504b1 9504
e87d4038 9505 bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
9d8504b1 9506 splt->contents + 0);
e87d4038 9507 bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
9d8504b1
PB
9508 splt->contents + 4);
9509 }
9510 else
9511 {
9512 bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0);
9513 bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4);
9514 }
9515 bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8);
9516 bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
9517 bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
9518 bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
9519 bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
9520 bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
9521
9522 if (! info->shared)
9523 {
9524 Elf_Internal_Rela rela;
9525 bfd_byte *loc;
9526
9527 loc = htab->srelplt2->contents;
9528
9529 /* Output the @ha relocation for the first instruction. */
9530 rela.r_offset = (htab->plt->output_section->vma
9531 + htab->plt->output_offset
9532 + 2);
636ce3f5 9533 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
9534 rela.r_addend = 0;
9535 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9536 loc += sizeof (Elf32_External_Rela);
5b914448 9537
9d8504b1
PB
9538 /* Output the @l relocation for the second instruction. */
9539 rela.r_offset = (htab->plt->output_section->vma
9540 + htab->plt->output_offset
9541 + 6);
636ce3f5 9542 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
9543 rela.r_addend = 0;
9544 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
9545 loc += sizeof (Elf32_External_Rela);
9546
9547 /* Fix up the remaining relocations. They may have the wrong
9548 symbol index for _G_O_T_ or _P_L_T_ depending on the order
9549 in which symbols were output. */
9550 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
9551 {
9552 Elf_Internal_Rela rel;
9553
9554 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 9555 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
9d8504b1
PB
9556 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9557 loc += sizeof (Elf32_External_Rela);
9558
9559 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
636ce3f5 9560 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
9d8504b1
PB
9561 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9562 loc += sizeof (Elf32_External_Rela);
9563
9564 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7325306f 9565 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
9d8504b1
PB
9566 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
9567 loc += sizeof (Elf32_External_Rela);
9568 }
9569 }
9570 }
9571
e054468f
AM
9572 if (htab->glink != NULL
9573 && htab->glink->contents != NULL
9574 && htab->elf.dynamic_sections_created)
d7128ce4
AM
9575 {
9576 unsigned char *p;
9577 unsigned char *endp;
a6aa5195 9578 bfd_vma res0;
d7128ce4 9579 unsigned int i;
a6aa5195
AM
9580
9581 /*
9582 * PIC glink code is the following:
9583 *
9584 * # ith PLT code stub.
9585 * addis 11,30,(plt+(i-1)*4-got)@ha
9586 * lwz 11,(plt+(i-1)*4-got)@l(11)
9587 * mtctr 11
9588 * bctr
9589 *
9590 * # A table of branches, one for each plt entry.
176a0d42 9591 * # The idea is that the plt call stub loads ctr and r11 with these
a6aa5195
AM
9592 * # addresses, so (r11 - res_0) gives the plt index * 4.
9593 * res_0: b PLTresolve
9594 * res_1: b PLTresolve
9595 * .
9596 * # Some number of entries towards the end can be nops
9597 * res_n_m3: nop
9598 * res_n_m2: nop
9599 * res_n_m1:
9600 *
9601 * PLTresolve:
9602 * addis 11,11,(1f-res_0)@ha
9603 * mflr 0
9604 * bcl 20,31,1f
9605 * 1: addi 11,11,(1b-res_0)@l
9606 * mflr 12
9607 * mtlr 0
9608 * sub 11,11,12 # r11 = index * 4
9609 * addis 12,12,(got+4-1b)@ha
9610 * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve
9611 * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address
9612 * mtctr 0
9613 * add 0,11,11
9614 * add 11,0,11 # r11 = index * 12 = reloc offset.
9615 * bctr
9616 */
9617 static const unsigned int pic_plt_resolve[] =
9618 {
9619 ADDIS_11_11,
9620 MFLR_0,
9621 BCL_20_31,
9622 ADDI_11_11,
9623 MFLR_12,
9624 MTLR_0,
9625 SUB_11_11_12,
9626 ADDIS_12_12,
9627 LWZ_0_12,
9628 LWZ_12_12,
9629 MTCTR_0,
9630 ADD_0_11_11,
9631 ADD_11_0_11,
9632 BCTR,
9633 NOP,
9634 NOP
9635 };
9636
176a0d42
AM
9637 /*
9638 * Non-PIC glink code is a little simpler.
9639 *
9640 * # ith PLT code stub.
9641 * lis 11,(plt+(i-1)*4)@ha
9642 * lwz 11,(plt+(i-1)*4)@l(11)
9643 * mtctr 11
9644 * bctr
9645 *
9646 * The branch table is the same, then comes
9647 *
9648 * PLTresolve:
9649 * lis 12,(got+4)@ha
9650 * addis 11,11,(-res_0)@ha
9651 * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve
9652 * addi 11,11,(-res_0)@l # r11 = index * 4
9653 * mtctr 0
9654 * add 0,11,11
9655 * lwz 12,(got+8)@l(12) # got[2] contains the map address
9656 * add 11,0,11 # r11 = index * 12 = reloc offset.
9657 * bctr
9658 */
d7128ce4
AM
9659 static const unsigned int plt_resolve[] =
9660 {
a6aa5195
AM
9661 LIS_12,
9662 ADDIS_11_11,
9663 LWZ_0_12,
9664 ADDI_11_11,
d7128ce4 9665 MTCTR_0,
7e8aeb9a 9666 ADD_0_11_11,
a6aa5195 9667 LWZ_12_12,
7e8aeb9a 9668 ADD_11_0_11,
d7128ce4
AM
9669 BCTR,
9670 NOP,
9671 NOP,
a6aa5195
AM
9672 NOP,
9673 NOP,
9674 NOP,
9675 NOP,
d7128ce4
AM
9676 NOP
9677 };
9678
a6aa5195
AM
9679 if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
9680 abort ();
9681 if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
7e8aeb9a
AM
9682 abort ();
9683
a6aa5195 9684 /* Build the branch table, one for each plt entry (less one),
86b9da88 9685 and perhaps some padding. */
a6aa5195
AM
9686 p = htab->glink->contents;
9687 p += htab->glink_pltresolve;
86b9da88
AM
9688 endp = htab->glink->contents;
9689 endp += htab->glink->size - GLINK_PLTRESOLVE;
9690 while (p < endp - 8 * 4)
9691 {
9692 bfd_put_32 (output_bfd, B + endp - p, p);
9693 p += 4;
9694 }
9695 while (p < endp)
9696 {
9697 bfd_put_32 (output_bfd, NOP, p);
9698 p += 4;
9699 }
9700
7e8aeb9a 9701 res0 = (htab->glink_pltresolve
86b9da88
AM
9702 + htab->glink->output_section->vma
9703 + htab->glink->output_offset);
9704
9705 /* Last comes the PLTresolve stub. */
a877a2b6 9706 if (info->shared)
7e8aeb9a 9707 {
a6aa5195 9708 bfd_vma bcl;
d7128ce4 9709
a6aa5195 9710 for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
7e8aeb9a 9711 {
a6aa5195 9712 bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
7e8aeb9a
AM
9713 p += 4;
9714 }
a6aa5195
AM
9715 p -= 4 * ARRAY_SIZE (pic_plt_resolve);
9716
9717 bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
9718 + htab->glink->output_section->vma
9719 + htab->glink->output_offset);
9720
9721 bfd_put_32 (output_bfd,
9722 ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
9723 bfd_put_32 (output_bfd,
9724 ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
9725 bfd_put_32 (output_bfd,
9726 ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
9727 if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
9728 {
9729 bfd_put_32 (output_bfd,
9730 LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9731 bfd_put_32 (output_bfd,
9732 LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
9733 }
9734 else
9735 {
9736 bfd_put_32 (output_bfd,
9737 LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
9738 bfd_put_32 (output_bfd,
9739 LWZ_12_12 + 4, p + 9*4);
9740 }
7e8aeb9a
AM
9741 }
9742 else
d7128ce4 9743 {
a6aa5195 9744 for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
7e8aeb9a
AM
9745 {
9746 bfd_put_32 (output_bfd, plt_resolve[i], p);
9747 p += 4;
9748 }
a6aa5195
AM
9749 p -= 4 * ARRAY_SIZE (plt_resolve);
9750
9751 bfd_put_32 (output_bfd,
9752 LIS_12 + PPC_HA (got + 4), p + 0*4);
9753 bfd_put_32 (output_bfd,
9754 ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
9755 bfd_put_32 (output_bfd,
9756 ADDI_11_11 + PPC_LO (-res0), p + 3*4);
9757 if (PPC_HA (got + 4) == PPC_HA (got + 8))
9758 {
9759 bfd_put_32 (output_bfd,
9760 LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
9761 bfd_put_32 (output_bfd,
9762 LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
9763 }
9764 else
9765 {
9766 bfd_put_32 (output_bfd,
9767 LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
9768 bfd_put_32 (output_bfd,
9769 LWZ_12_12 + 4, p + 6*4);
9770 }
d7128ce4 9771 }
d7128ce4
AM
9772 }
9773
6177242a
AM
9774 if (htab->glink_eh_frame != NULL
9775 && htab->glink_eh_frame->contents != NULL)
9776 {
9777 unsigned char *p = htab->glink_eh_frame->contents;
9778 bfd_vma val;
9779
6177242a
AM
9780 p += sizeof (glink_eh_frame_cie);
9781 /* FDE length. */
6177242a
AM
9782 p += 4;
9783 /* CIE pointer. */
6177242a
AM
9784 p += 4;
9785 /* Offset to .glink. */
9786 val = (htab->glink->output_section->vma
9787 + htab->glink->output_offset);
9788 val -= (htab->glink_eh_frame->output_section->vma
9789 + htab->glink_eh_frame->output_offset);
9790 val -= p - htab->glink_eh_frame->contents;
9791 bfd_put_32 (htab->elf.dynobj, val, p);
6177242a 9792
dbaa2011 9793 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
6177242a
AM
9794 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
9795 htab->glink_eh_frame,
9796 htab->glink_eh_frame->contents))
9797 return FALSE;
9798 }
9799
e87d4038 9800 return ret;
25dbc73a 9801}
e1a9cb8e 9802\f
252b5132
RH
9803#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
9804#define TARGET_LITTLE_NAME "elf32-powerpcle"
9805#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
9806#define TARGET_BIG_NAME "elf32-powerpc"
9807#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 9808#define ELF_TARGET_ID PPC32_ELF_DATA
252b5132 9809#define ELF_MACHINE_CODE EM_PPC
d0facd1b
NC
9810#ifdef __QNXTARGET__
9811#define ELF_MAXPAGESIZE 0x1000
9812#else
252b5132 9813#define ELF_MAXPAGESIZE 0x10000
d0facd1b 9814#endif
b1342370 9815#define ELF_MINPAGESIZE 0x1000
24718e3b 9816#define ELF_COMMONPAGESIZE 0x1000
252b5132
RH
9817#define elf_info_to_howto ppc_elf_info_to_howto
9818
9819#ifdef EM_CYGNUS_POWERPC
9820#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
9821#endif
9822
9823#ifdef EM_PPC_OLD
9824#define ELF_MACHINE_ALT2 EM_PPC_OLD
9825#endif
9826
9827#define elf_backend_plt_not_loaded 1
252b5132 9828#define elf_backend_can_gc_sections 1
51b64d56 9829#define elf_backend_can_refcount 1
b491616a 9830#define elf_backend_rela_normal 1
252b5132 9831
43c40ab2 9832#define bfd_elf32_mkobject ppc_elf_mkobject
252b5132 9833#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
70bccea4 9834#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
252b5132 9835#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
b9c361e0 9836#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup
252b5132 9837#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
70bccea4 9838#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
468392fb 9839#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab
252b5132 9840
feee612b 9841#define elf_backend_object_p ppc_elf_object_p
252b5132
RH
9842#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
9843#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
9844#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
9845#define elf_backend_relocate_section ppc_elf_relocate_section
9846#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
9847#define elf_backend_check_relocs ppc_elf_check_relocs
7fce784e 9848#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
252b5132
RH
9849#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9850#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
9851#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
0eb4a168 9852#define elf_backend_hash_symbol ppc_elf_hash_symbol
252b5132
RH
9853#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
9854#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
9855#define elf_backend_fake_sections ppc_elf_fake_sections
9856#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
b9c361e0 9857#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
c5fccbec
DJ
9858#define elf_backend_grok_prstatus ppc_elf_grok_prstatus
9859#define elf_backend_grok_psinfo ppc_elf_grok_psinfo
183e98be 9860#define elf_backend_write_core_note ppc_elf_write_core_note
29c2fb7c 9861#define elf_backend_reloc_type_class ppc_elf_reloc_type_class
70bccea4
AM
9862#define elf_backend_begin_write_processing ppc_elf_begin_write_processing
9863#define elf_backend_final_write_processing ppc_elf_final_write_processing
9864#define elf_backend_write_section ppc_elf_write_section
551b43fd 9865#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr
4c45e5c9 9866#define elf_backend_plt_sym_val ppc_elf_plt_sym_val
8a696751 9867#define elf_backend_action_discarded ppc_elf_action_discarded
74541ad4 9868#define elf_backend_init_index_section _bfd_elf_init_1_index_section
e054468f 9869#define elf_backend_post_process_headers _bfd_elf_set_osabi
b9c361e0 9870#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags
b9c361e0 9871#define elf_backend_section_processing ppc_elf_section_processing
252b5132
RH
9872
9873#include "elf32-target.h"
9d8504b1 9874
7b8e7dad
AM
9875/* FreeBSD Target */
9876
9877#undef TARGET_LITTLE_SYM
9878#undef TARGET_LITTLE_NAME
9879
9880#undef TARGET_BIG_SYM
9881#define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec
9882#undef TARGET_BIG_NAME
9883#define TARGET_BIG_NAME "elf32-powerpc-freebsd"
9884
9885#undef ELF_OSABI
9886#define ELF_OSABI ELFOSABI_FREEBSD
9887
9888#undef elf32_bed
9889#define elf32_bed elf32_powerpc_fbsd_bed
9890
9891#include "elf32-target.h"
9892
9d8504b1
PB
9893/* VxWorks Target */
9894
9895#undef TARGET_LITTLE_SYM
9896#undef TARGET_LITTLE_NAME
9897
9898#undef TARGET_BIG_SYM
9899#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec
9900#undef TARGET_BIG_NAME
9901#define TARGET_BIG_NAME "elf32-powerpc-vxworks"
9902
7b8e7dad
AM
9903#undef ELF_OSABI
9904
d5e3d971
PB
9905/* VxWorks uses the elf default section flags for .plt. */
9906static const struct bfd_elf_special_section *
9907ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
9d8504b1 9908{
d5e3d971
PB
9909 if (sec->name == NULL)
9910 return NULL;
9911
9912 if (strcmp (sec->name, ".plt") == 0)
9913 return _bfd_elf_get_sec_type_attr (abfd, sec);
9914
9915 return ppc_elf_get_sec_type_attr (abfd, sec);
9916}
9d8504b1
PB
9917
9918/* Like ppc_elf_link_hash_table_create, but overrides
9919 appropriately for VxWorks. */
9920static struct bfd_link_hash_table *
9921ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
9922{
9923 struct bfd_link_hash_table *ret;
9924
9925 ret = ppc_elf_link_hash_table_create (abfd);
9926 if (ret)
9927 {
9928 struct ppc_elf_link_hash_table *htab
9929 = (struct ppc_elf_link_hash_table *)ret;
9930 htab->is_vxworks = 1;
4a3dc543 9931 htab->plt_type = PLT_VXWORKS;
9d8504b1
PB
9932 htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
9933 htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
9934 htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
9935 }
9936 return ret;
9937}
9938
9939/* Tweak magic VxWorks symbols as they are loaded. */
9940static bfd_boolean
9941ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
9942 struct bfd_link_info *info,
9943 Elf_Internal_Sym *sym,
9944 const char **namep ATTRIBUTE_UNUSED,
9945 flagword *flagsp ATTRIBUTE_UNUSED,
9946 asection **secp,
9947 bfd_vma *valp)
9948{
9949 if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
9950 valp))
9951 return FALSE;
9952
9953 return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
9954}
9955
9d8504b1
PB
9956static void
9957ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
9958{
9959 ppc_elf_final_write_processing(abfd, linker);
9960 elf_vxworks_final_write_processing(abfd, linker);
9961}
9962
9963/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
9964 define it. */
9965#undef elf_backend_want_plt_sym
9966#define elf_backend_want_plt_sym 1
9967#undef elf_backend_want_got_plt
9968#define elf_backend_want_got_plt 1
9969#undef elf_backend_got_symbol_offset
9970#define elf_backend_got_symbol_offset 0
9971#undef elf_backend_plt_not_loaded
9972#define elf_backend_plt_not_loaded 0
9973#undef elf_backend_plt_readonly
9974#define elf_backend_plt_readonly 1
9975#undef elf_backend_got_header_size
9976#define elf_backend_got_header_size 12
9977
468392fb
AM
9978#undef bfd_elf32_get_synthetic_symtab
9979
9d8504b1
PB
9980#undef bfd_elf32_bfd_link_hash_table_create
9981#define bfd_elf32_bfd_link_hash_table_create \
9982 ppc_elf_vxworks_link_hash_table_create
9d8504b1
PB
9983#undef elf_backend_add_symbol_hook
9984#define elf_backend_add_symbol_hook \
9985 ppc_elf_vxworks_add_symbol_hook
9986#undef elf_backend_link_output_symbol_hook
9987#define elf_backend_link_output_symbol_hook \
9c72ff84 9988 elf_vxworks_link_output_symbol_hook
9d8504b1
PB
9989#undef elf_backend_final_write_processing
9990#define elf_backend_final_write_processing \
9991 ppc_elf_vxworks_final_write_processing
d5e3d971
PB
9992#undef elf_backend_get_sec_type_attr
9993#define elf_backend_get_sec_type_attr \
9994 ppc_elf_vxworks_get_sec_type_attr
9d8504b1
PB
9995#undef elf_backend_emit_relocs
9996#define elf_backend_emit_relocs \
9997 elf_vxworks_emit_relocs
9998
9999#undef elf32_bed
10000#define elf32_bed ppc_elf_vxworks_bed
e054468f 10001#undef elf_backend_post_process_headers
9d8504b1
PB
10002
10003#include "elf32-target.h"
This page took 1.91302 seconds and 4 git commands to generate.