1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 /* This file is based on the 64-bit PowerPC ELF ABI. It is also based
23 on the file elf32-ppc.c. */
30 #include "elf/ppc64.h"
31 #include "elf64-ppc.h"
33 static void ppc_howto_init
35 static reloc_howto_type
*ppc64_elf_reloc_type_lookup
36 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type code
));
37 static void ppc64_elf_info_to_howto
38 PARAMS ((bfd
*abfd
, arelent
*cache_ptr
, Elf_Internal_Rela
*dst
));
39 static bfd_reloc_status_type ppc64_elf_ha_reloc
40 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
41 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
42 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
43 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
44 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
45 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
46 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
47 static bfd_reloc_status_type ppc64_elf_toc_reloc
48 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
49 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
50 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
51 static bfd_reloc_status_type ppc64_elf_toc64_reloc
52 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
53 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
54 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
55 static bfd_boolean ppc64_elf_object_p
57 static bfd_boolean ppc64_elf_merge_private_bfd_data
58 PARAMS ((bfd
*, bfd
*));
59 static bfd_boolean ppc64_elf_new_section_hook
60 PARAMS ((bfd
*, asection
*));
63 /* The name of the dynamic interpreter. This is put in the .interp
65 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
67 /* The size in bytes of an entry in the procedure linkage table. */
68 #define PLT_ENTRY_SIZE 24
70 /* The initial size of the plt reserved for the dynamic linker. */
71 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
73 /* TOC base pointers offset from start of TOC. */
74 #define TOC_BASE_OFF 0x8000
76 /* Offset of tp and dtp pointers from start of TLS block. */
77 #define TP_OFFSET 0x7000
78 #define DTP_OFFSET 0x8000
80 /* .plt call stub instructions. */
81 #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
82 #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
83 #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
84 #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
85 #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
86 /* ld %r11,xxx+16@l(%r12) */
87 #define BCTR 0x4e800420 /* bctr */
89 /* The normal stub is this size. */
90 #define PLT_CALL_STUB_SIZE (7*4)
92 /* But sometimes the .plt entry crosses a 64k boundary, and we need
93 to adjust the high word with this insn. */
94 #define ADDIS_R12_R12_1 0x3d8c0001 /* addis %r12,%r12,1 */
96 /* The .glink fixup call stub is the same as the .plt call stub, but
97 the first instruction restores r2, and the std is omitted. */
98 #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
100 /* Always allow this much space. */
101 #define GLINK_CALL_STUB_SIZE (8*4)
104 #define NOP 0x60000000
106 /* Some other nops. */
107 #define CROR_151515 0x4def7b82
108 #define CROR_313131 0x4ffffb82
110 /* .glink entries for the first 32k functions are two instructions. */
111 #define LI_R0_0 0x38000000 /* li %r0,0 */
112 #define B_DOT 0x48000000 /* b . */
114 /* After that, we need two instructions to load the index, followed by
116 #define LIS_R0_0 0x3c000000 /* lis %r0,0 */
117 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
119 /* Instructions to save and restore floating point regs. */
120 #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
121 #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
122 #define BLR 0x4e800020 /* blr */
124 /* Since .opd is an array of descriptors and each entry will end up
125 with identical R_PPC64_RELATIVE relocs, there is really no need to
126 propagate .opd relocs; The dynamic linker should be taught to
127 relocate .opd without reloc entries. */
128 #ifndef NO_OPD_RELOCS
129 #define NO_OPD_RELOCS 0
132 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
134 /* Relocation HOWTO's. */
135 static reloc_howto_type
*ppc64_elf_howto_table
[(int) R_PPC64_max
];
137 static reloc_howto_type ppc64_elf_howto_raw
[] = {
138 /* This reloc does nothing. */
139 HOWTO (R_PPC64_NONE
, /* type */
141 2, /* size (0 = byte, 1 = short, 2 = long) */
143 FALSE
, /* pc_relative */
145 complain_overflow_dont
, /* complain_on_overflow */
146 bfd_elf_generic_reloc
, /* special_function */
147 "R_PPC64_NONE", /* name */
148 FALSE
, /* partial_inplace */
151 FALSE
), /* pcrel_offset */
153 /* A standard 32 bit relocation. */
154 HOWTO (R_PPC64_ADDR32
, /* type */
156 2, /* size (0 = byte, 1 = short, 2 = long) */
158 FALSE
, /* pc_relative */
160 complain_overflow_bitfield
, /* complain_on_overflow */
161 bfd_elf_generic_reloc
, /* special_function */
162 "R_PPC64_ADDR32", /* name */
163 FALSE
, /* partial_inplace */
165 0xffffffff, /* dst_mask */
166 FALSE
), /* pcrel_offset */
168 /* An absolute 26 bit branch; the lower two bits must be zero.
169 FIXME: we don't check that, we just clear them. */
170 HOWTO (R_PPC64_ADDR24
, /* type */
172 2, /* size (0 = byte, 1 = short, 2 = long) */
174 FALSE
, /* pc_relative */
176 complain_overflow_bitfield
, /* complain_on_overflow */
177 bfd_elf_generic_reloc
, /* special_function */
178 "R_PPC64_ADDR24", /* name */
179 FALSE
, /* partial_inplace */
181 0x03fffffc, /* dst_mask */
182 FALSE
), /* pcrel_offset */
184 /* A standard 16 bit relocation. */
185 HOWTO (R_PPC64_ADDR16
, /* type */
187 1, /* size (0 = byte, 1 = short, 2 = long) */
189 FALSE
, /* pc_relative */
191 complain_overflow_bitfield
, /* complain_on_overflow */
192 bfd_elf_generic_reloc
, /* special_function */
193 "R_PPC64_ADDR16", /* name */
194 FALSE
, /* partial_inplace */
196 0xffff, /* dst_mask */
197 FALSE
), /* pcrel_offset */
199 /* A 16 bit relocation without overflow. */
200 HOWTO (R_PPC64_ADDR16_LO
, /* type */
202 1, /* size (0 = byte, 1 = short, 2 = long) */
204 FALSE
, /* pc_relative */
206 complain_overflow_dont
,/* complain_on_overflow */
207 bfd_elf_generic_reloc
, /* special_function */
208 "R_PPC64_ADDR16_LO", /* name */
209 FALSE
, /* partial_inplace */
211 0xffff, /* dst_mask */
212 FALSE
), /* pcrel_offset */
214 /* Bits 16-31 of an address. */
215 HOWTO (R_PPC64_ADDR16_HI
, /* type */
217 1, /* size (0 = byte, 1 = short, 2 = long) */
219 FALSE
, /* pc_relative */
221 complain_overflow_dont
, /* complain_on_overflow */
222 bfd_elf_generic_reloc
, /* special_function */
223 "R_PPC64_ADDR16_HI", /* name */
224 FALSE
, /* partial_inplace */
226 0xffff, /* dst_mask */
227 FALSE
), /* pcrel_offset */
229 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
230 bits, treated as a signed number, is negative. */
231 HOWTO (R_PPC64_ADDR16_HA
, /* type */
233 1, /* size (0 = byte, 1 = short, 2 = long) */
235 FALSE
, /* pc_relative */
237 complain_overflow_dont
, /* complain_on_overflow */
238 ppc64_elf_ha_reloc
, /* special_function */
239 "R_PPC64_ADDR16_HA", /* name */
240 FALSE
, /* partial_inplace */
242 0xffff, /* dst_mask */
243 FALSE
), /* pcrel_offset */
245 /* An absolute 16 bit branch; the lower two bits must be zero.
246 FIXME: we don't check that, we just clear them. */
247 HOWTO (R_PPC64_ADDR14
, /* type */
249 2, /* size (0 = byte, 1 = short, 2 = long) */
251 FALSE
, /* pc_relative */
253 complain_overflow_bitfield
, /* complain_on_overflow */
254 bfd_elf_generic_reloc
, /* special_function */
255 "R_PPC64_ADDR14", /* name */
256 FALSE
, /* partial_inplace */
258 0x0000fffc, /* dst_mask */
259 FALSE
), /* pcrel_offset */
261 /* An absolute 16 bit branch, for which bit 10 should be set to
262 indicate that the branch is expected to be taken. The lower two
263 bits must be zero. */
264 HOWTO (R_PPC64_ADDR14_BRTAKEN
, /* type */
266 2, /* size (0 = byte, 1 = short, 2 = long) */
268 FALSE
, /* pc_relative */
270 complain_overflow_bitfield
, /* complain_on_overflow */
271 ppc64_elf_brtaken_reloc
, /* special_function */
272 "R_PPC64_ADDR14_BRTAKEN",/* name */
273 FALSE
, /* partial_inplace */
275 0x0000fffc, /* dst_mask */
276 FALSE
), /* pcrel_offset */
278 /* An absolute 16 bit branch, for which bit 10 should be set to
279 indicate that the branch is not expected to be taken. The lower
280 two bits must be zero. */
281 HOWTO (R_PPC64_ADDR14_BRNTAKEN
, /* type */
283 2, /* size (0 = byte, 1 = short, 2 = long) */
285 FALSE
, /* pc_relative */
287 complain_overflow_bitfield
, /* complain_on_overflow */
288 ppc64_elf_brtaken_reloc
, /* special_function */
289 "R_PPC64_ADDR14_BRNTAKEN",/* name */
290 FALSE
, /* partial_inplace */
292 0x0000fffc, /* dst_mask */
293 FALSE
), /* pcrel_offset */
295 /* A relative 26 bit branch; the lower two bits must be zero. */
296 HOWTO (R_PPC64_REL24
, /* type */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
300 TRUE
, /* pc_relative */
302 complain_overflow_signed
, /* complain_on_overflow */
303 bfd_elf_generic_reloc
, /* special_function */
304 "R_PPC64_REL24", /* name */
305 FALSE
, /* partial_inplace */
307 0x03fffffc, /* dst_mask */
308 TRUE
), /* pcrel_offset */
310 /* A relative 16 bit branch; the lower two bits must be zero. */
311 HOWTO (R_PPC64_REL14
, /* type */
313 2, /* size (0 = byte, 1 = short, 2 = long) */
315 TRUE
, /* pc_relative */
317 complain_overflow_signed
, /* complain_on_overflow */
318 bfd_elf_generic_reloc
, /* special_function */
319 "R_PPC64_REL14", /* name */
320 FALSE
, /* partial_inplace */
322 0x0000fffc, /* dst_mask */
323 TRUE
), /* pcrel_offset */
325 /* A relative 16 bit branch. Bit 10 should be set to indicate that
326 the branch is expected to be taken. The lower two bits must be
328 HOWTO (R_PPC64_REL14_BRTAKEN
, /* type */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
332 TRUE
, /* pc_relative */
334 complain_overflow_signed
, /* complain_on_overflow */
335 ppc64_elf_brtaken_reloc
, /* special_function */
336 "R_PPC64_REL14_BRTAKEN", /* name */
337 FALSE
, /* partial_inplace */
339 0x0000fffc, /* dst_mask */
340 TRUE
), /* pcrel_offset */
342 /* A relative 16 bit branch. Bit 10 should be set to indicate that
343 the branch is not expected to be taken. The lower two bits must
345 HOWTO (R_PPC64_REL14_BRNTAKEN
, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 TRUE
, /* pc_relative */
351 complain_overflow_signed
, /* complain_on_overflow */
352 ppc64_elf_brtaken_reloc
, /* special_function */
353 "R_PPC64_REL14_BRNTAKEN",/* name */
354 FALSE
, /* partial_inplace */
356 0x0000fffc, /* dst_mask */
357 TRUE
), /* pcrel_offset */
359 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
361 HOWTO (R_PPC64_GOT16
, /* type */
363 1, /* size (0 = byte, 1 = short, 2 = long) */
365 FALSE
, /* pc_relative */
367 complain_overflow_signed
, /* complain_on_overflow */
368 ppc64_elf_unhandled_reloc
, /* special_function */
369 "R_PPC64_GOT16", /* name */
370 FALSE
, /* partial_inplace */
372 0xffff, /* dst_mask */
373 FALSE
), /* pcrel_offset */
375 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
377 HOWTO (R_PPC64_GOT16_LO
, /* type */
379 1, /* size (0 = byte, 1 = short, 2 = long) */
381 FALSE
, /* pc_relative */
383 complain_overflow_dont
, /* complain_on_overflow */
384 ppc64_elf_unhandled_reloc
, /* special_function */
385 "R_PPC64_GOT16_LO", /* name */
386 FALSE
, /* partial_inplace */
388 0xffff, /* dst_mask */
389 FALSE
), /* pcrel_offset */
391 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
393 HOWTO (R_PPC64_GOT16_HI
, /* type */
395 1, /* size (0 = byte, 1 = short, 2 = long) */
397 FALSE
, /* pc_relative */
399 complain_overflow_dont
,/* complain_on_overflow */
400 ppc64_elf_unhandled_reloc
, /* special_function */
401 "R_PPC64_GOT16_HI", /* name */
402 FALSE
, /* partial_inplace */
404 0xffff, /* dst_mask */
405 FALSE
), /* pcrel_offset */
407 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
409 HOWTO (R_PPC64_GOT16_HA
, /* type */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
413 FALSE
, /* pc_relative */
415 complain_overflow_dont
,/* complain_on_overflow */
416 ppc64_elf_unhandled_reloc
, /* special_function */
417 "R_PPC64_GOT16_HA", /* name */
418 FALSE
, /* partial_inplace */
420 0xffff, /* dst_mask */
421 FALSE
), /* pcrel_offset */
423 /* This is used only by the dynamic linker. The symbol should exist
424 both in the object being run and in some shared library. The
425 dynamic linker copies the data addressed by the symbol from the
426 shared library into the object, because the object being
427 run has to have the data at some particular address. */
428 HOWTO (R_PPC64_COPY
, /* type */
430 0, /* this one is variable size */
432 FALSE
, /* pc_relative */
434 complain_overflow_dont
, /* complain_on_overflow */
435 ppc64_elf_unhandled_reloc
, /* special_function */
436 "R_PPC64_COPY", /* name */
437 FALSE
, /* partial_inplace */
440 FALSE
), /* pcrel_offset */
442 /* Like R_PPC64_ADDR64, but used when setting global offset table
444 HOWTO (R_PPC64_GLOB_DAT
, /* type */
446 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
448 FALSE
, /* pc_relative */
450 complain_overflow_dont
, /* complain_on_overflow */
451 ppc64_elf_unhandled_reloc
, /* special_function */
452 "R_PPC64_GLOB_DAT", /* name */
453 FALSE
, /* partial_inplace */
455 ONES (64), /* dst_mask */
456 FALSE
), /* pcrel_offset */
458 /* Created by the link editor. Marks a procedure linkage table
459 entry for a symbol. */
460 HOWTO (R_PPC64_JMP_SLOT
, /* type */
462 0, /* size (0 = byte, 1 = short, 2 = long) */
464 FALSE
, /* pc_relative */
466 complain_overflow_dont
, /* complain_on_overflow */
467 ppc64_elf_unhandled_reloc
, /* special_function */
468 "R_PPC64_JMP_SLOT", /* name */
469 FALSE
, /* partial_inplace */
472 FALSE
), /* pcrel_offset */
474 /* Used only by the dynamic linker. When the object is run, this
475 doubleword64 is set to the load address of the object, plus the
477 HOWTO (R_PPC64_RELATIVE
, /* type */
479 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
481 FALSE
, /* pc_relative */
483 complain_overflow_dont
, /* complain_on_overflow */
484 bfd_elf_generic_reloc
, /* special_function */
485 "R_PPC64_RELATIVE", /* name */
486 FALSE
, /* partial_inplace */
488 ONES (64), /* dst_mask */
489 FALSE
), /* pcrel_offset */
491 /* Like R_PPC64_ADDR32, but may be unaligned. */
492 HOWTO (R_PPC64_UADDR32
, /* type */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
496 FALSE
, /* pc_relative */
498 complain_overflow_bitfield
, /* complain_on_overflow */
499 bfd_elf_generic_reloc
, /* special_function */
500 "R_PPC64_UADDR32", /* name */
501 FALSE
, /* partial_inplace */
503 0xffffffff, /* dst_mask */
504 FALSE
), /* pcrel_offset */
506 /* Like R_PPC64_ADDR16, but may be unaligned. */
507 HOWTO (R_PPC64_UADDR16
, /* type */
509 1, /* size (0 = byte, 1 = short, 2 = long) */
511 FALSE
, /* pc_relative */
513 complain_overflow_bitfield
, /* complain_on_overflow */
514 bfd_elf_generic_reloc
, /* special_function */
515 "R_PPC64_UADDR16", /* name */
516 FALSE
, /* partial_inplace */
518 0xffff, /* dst_mask */
519 FALSE
), /* pcrel_offset */
521 /* 32-bit PC relative. */
522 HOWTO (R_PPC64_REL32
, /* type */
524 2, /* size (0 = byte, 1 = short, 2 = long) */
526 TRUE
, /* pc_relative */
528 /* FIXME: Verify. Was complain_overflow_bitfield. */
529 complain_overflow_signed
, /* complain_on_overflow */
530 bfd_elf_generic_reloc
, /* special_function */
531 "R_PPC64_REL32", /* name */
532 FALSE
, /* partial_inplace */
534 0xffffffff, /* dst_mask */
535 TRUE
), /* pcrel_offset */
537 /* 32-bit relocation to the symbol's procedure linkage table. */
538 HOWTO (R_PPC64_PLT32
, /* type */
540 2, /* size (0 = byte, 1 = short, 2 = long) */
542 FALSE
, /* pc_relative */
544 complain_overflow_bitfield
, /* complain_on_overflow */
545 ppc64_elf_unhandled_reloc
, /* special_function */
546 "R_PPC64_PLT32", /* name */
547 FALSE
, /* partial_inplace */
549 0xffffffff, /* dst_mask */
550 FALSE
), /* pcrel_offset */
552 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
553 FIXME: R_PPC64_PLTREL32 not supported. */
554 HOWTO (R_PPC64_PLTREL32
, /* type */
556 2, /* size (0 = byte, 1 = short, 2 = long) */
558 TRUE
, /* pc_relative */
560 complain_overflow_signed
, /* complain_on_overflow */
561 bfd_elf_generic_reloc
, /* special_function */
562 "R_PPC64_PLTREL32", /* name */
563 FALSE
, /* partial_inplace */
565 0xffffffff, /* dst_mask */
566 TRUE
), /* pcrel_offset */
568 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
570 HOWTO (R_PPC64_PLT16_LO
, /* type */
572 1, /* size (0 = byte, 1 = short, 2 = long) */
574 FALSE
, /* pc_relative */
576 complain_overflow_dont
, /* complain_on_overflow */
577 ppc64_elf_unhandled_reloc
, /* special_function */
578 "R_PPC64_PLT16_LO", /* name */
579 FALSE
, /* partial_inplace */
581 0xffff, /* dst_mask */
582 FALSE
), /* pcrel_offset */
584 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
586 HOWTO (R_PPC64_PLT16_HI
, /* type */
588 1, /* size (0 = byte, 1 = short, 2 = long) */
590 FALSE
, /* pc_relative */
592 complain_overflow_dont
, /* complain_on_overflow */
593 ppc64_elf_unhandled_reloc
, /* special_function */
594 "R_PPC64_PLT16_HI", /* name */
595 FALSE
, /* partial_inplace */
597 0xffff, /* dst_mask */
598 FALSE
), /* pcrel_offset */
600 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
602 HOWTO (R_PPC64_PLT16_HA
, /* type */
604 1, /* size (0 = byte, 1 = short, 2 = long) */
606 FALSE
, /* pc_relative */
608 complain_overflow_dont
, /* complain_on_overflow */
609 ppc64_elf_unhandled_reloc
, /* special_function */
610 "R_PPC64_PLT16_HA", /* name */
611 FALSE
, /* partial_inplace */
613 0xffff, /* dst_mask */
614 FALSE
), /* pcrel_offset */
616 /* 16-bit section relative relocation. */
617 HOWTO (R_PPC64_SECTOFF
, /* type */
619 1, /* size (0 = byte, 1 = short, 2 = long) */
621 FALSE
, /* pc_relative */
623 complain_overflow_bitfield
, /* complain_on_overflow */
624 ppc64_elf_sectoff_reloc
, /* special_function */
625 "R_PPC64_SECTOFF", /* name */
626 FALSE
, /* partial_inplace */
628 0xffff, /* dst_mask */
629 FALSE
), /* pcrel_offset */
631 /* Like R_PPC64_SECTOFF, but no overflow warning. */
632 HOWTO (R_PPC64_SECTOFF_LO
, /* type */
634 1, /* size (0 = byte, 1 = short, 2 = long) */
636 FALSE
, /* pc_relative */
638 complain_overflow_dont
, /* complain_on_overflow */
639 ppc64_elf_sectoff_reloc
, /* special_function */
640 "R_PPC64_SECTOFF_LO", /* name */
641 FALSE
, /* partial_inplace */
643 0xffff, /* dst_mask */
644 FALSE
), /* pcrel_offset */
646 /* 16-bit upper half section relative relocation. */
647 HOWTO (R_PPC64_SECTOFF_HI
, /* type */
649 1, /* size (0 = byte, 1 = short, 2 = long) */
651 FALSE
, /* pc_relative */
653 complain_overflow_dont
, /* complain_on_overflow */
654 ppc64_elf_sectoff_reloc
, /* special_function */
655 "R_PPC64_SECTOFF_HI", /* name */
656 FALSE
, /* partial_inplace */
658 0xffff, /* dst_mask */
659 FALSE
), /* pcrel_offset */
661 /* 16-bit upper half adjusted section relative relocation. */
662 HOWTO (R_PPC64_SECTOFF_HA
, /* type */
664 1, /* size (0 = byte, 1 = short, 2 = long) */
666 FALSE
, /* pc_relative */
668 complain_overflow_dont
, /* complain_on_overflow */
669 ppc64_elf_sectoff_ha_reloc
, /* special_function */
670 "R_PPC64_SECTOFF_HA", /* name */
671 FALSE
, /* partial_inplace */
673 0xffff, /* dst_mask */
674 FALSE
), /* pcrel_offset */
676 /* Like R_PPC64_REL24 without touching the two least significant bits. */
677 HOWTO (R_PPC64_REL30
, /* type */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
681 TRUE
, /* pc_relative */
683 complain_overflow_dont
, /* complain_on_overflow */
684 bfd_elf_generic_reloc
, /* special_function */
685 "R_PPC64_REL30", /* name */
686 FALSE
, /* partial_inplace */
688 0xfffffffc, /* dst_mask */
689 TRUE
), /* pcrel_offset */
691 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
693 /* A standard 64-bit relocation. */
694 HOWTO (R_PPC64_ADDR64
, /* type */
696 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
698 FALSE
, /* pc_relative */
700 complain_overflow_dont
, /* complain_on_overflow */
701 bfd_elf_generic_reloc
, /* special_function */
702 "R_PPC64_ADDR64", /* name */
703 FALSE
, /* partial_inplace */
705 ONES (64), /* dst_mask */
706 FALSE
), /* pcrel_offset */
708 /* The bits 32-47 of an address. */
709 HOWTO (R_PPC64_ADDR16_HIGHER
, /* type */
711 1, /* size (0 = byte, 1 = short, 2 = long) */
713 FALSE
, /* pc_relative */
715 complain_overflow_dont
, /* complain_on_overflow */
716 bfd_elf_generic_reloc
, /* special_function */
717 "R_PPC64_ADDR16_HIGHER", /* name */
718 FALSE
, /* partial_inplace */
720 0xffff, /* dst_mask */
721 FALSE
), /* pcrel_offset */
723 /* The bits 32-47 of an address, plus 1 if the contents of the low
724 16 bits, treated as a signed number, is negative. */
725 HOWTO (R_PPC64_ADDR16_HIGHERA
, /* type */
727 1, /* size (0 = byte, 1 = short, 2 = long) */
729 FALSE
, /* pc_relative */
731 complain_overflow_dont
, /* complain_on_overflow */
732 ppc64_elf_ha_reloc
, /* special_function */
733 "R_PPC64_ADDR16_HIGHERA", /* name */
734 FALSE
, /* partial_inplace */
736 0xffff, /* dst_mask */
737 FALSE
), /* pcrel_offset */
739 /* The bits 48-63 of an address. */
740 HOWTO (R_PPC64_ADDR16_HIGHEST
,/* type */
742 1, /* size (0 = byte, 1 = short, 2 = long) */
744 FALSE
, /* pc_relative */
746 complain_overflow_dont
, /* complain_on_overflow */
747 bfd_elf_generic_reloc
, /* special_function */
748 "R_PPC64_ADDR16_HIGHEST", /* name */
749 FALSE
, /* partial_inplace */
751 0xffff, /* dst_mask */
752 FALSE
), /* pcrel_offset */
754 /* The bits 48-63 of an address, plus 1 if the contents of the low
755 16 bits, treated as a signed number, is negative. */
756 HOWTO (R_PPC64_ADDR16_HIGHESTA
,/* type */
758 1, /* size (0 = byte, 1 = short, 2 = long) */
760 FALSE
, /* pc_relative */
762 complain_overflow_dont
, /* complain_on_overflow */
763 ppc64_elf_ha_reloc
, /* special_function */
764 "R_PPC64_ADDR16_HIGHESTA", /* name */
765 FALSE
, /* partial_inplace */
767 0xffff, /* dst_mask */
768 FALSE
), /* pcrel_offset */
770 /* Like ADDR64, but may be unaligned. */
771 HOWTO (R_PPC64_UADDR64
, /* type */
773 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
775 FALSE
, /* pc_relative */
777 complain_overflow_dont
, /* complain_on_overflow */
778 bfd_elf_generic_reloc
, /* special_function */
779 "R_PPC64_UADDR64", /* name */
780 FALSE
, /* partial_inplace */
782 ONES (64), /* dst_mask */
783 FALSE
), /* pcrel_offset */
785 /* 64-bit relative relocation. */
786 HOWTO (R_PPC64_REL64
, /* type */
788 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
790 TRUE
, /* pc_relative */
792 complain_overflow_dont
, /* complain_on_overflow */
793 bfd_elf_generic_reloc
, /* special_function */
794 "R_PPC64_REL64", /* name */
795 FALSE
, /* partial_inplace */
797 ONES (64), /* dst_mask */
798 TRUE
), /* pcrel_offset */
800 /* 64-bit relocation to the symbol's procedure linkage table. */
801 HOWTO (R_PPC64_PLT64
, /* type */
803 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
805 FALSE
, /* pc_relative */
807 complain_overflow_dont
, /* complain_on_overflow */
808 ppc64_elf_unhandled_reloc
, /* special_function */
809 "R_PPC64_PLT64", /* name */
810 FALSE
, /* partial_inplace */
812 ONES (64), /* dst_mask */
813 FALSE
), /* pcrel_offset */
815 /* 64-bit PC relative relocation to the symbol's procedure linkage
817 /* FIXME: R_PPC64_PLTREL64 not supported. */
818 HOWTO (R_PPC64_PLTREL64
, /* type */
820 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
822 TRUE
, /* pc_relative */
824 complain_overflow_dont
, /* complain_on_overflow */
825 ppc64_elf_unhandled_reloc
, /* special_function */
826 "R_PPC64_PLTREL64", /* name */
827 FALSE
, /* partial_inplace */
829 ONES (64), /* dst_mask */
830 TRUE
), /* pcrel_offset */
832 /* 16 bit TOC-relative relocation. */
834 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
835 HOWTO (R_PPC64_TOC16
, /* type */
837 1, /* size (0 = byte, 1 = short, 2 = long) */
839 FALSE
, /* pc_relative */
841 complain_overflow_signed
, /* complain_on_overflow */
842 ppc64_elf_toc_reloc
, /* special_function */
843 "R_PPC64_TOC16", /* name */
844 FALSE
, /* partial_inplace */
846 0xffff, /* dst_mask */
847 FALSE
), /* pcrel_offset */
849 /* 16 bit TOC-relative relocation without overflow. */
851 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
852 HOWTO (R_PPC64_TOC16_LO
, /* type */
854 1, /* size (0 = byte, 1 = short, 2 = long) */
856 FALSE
, /* pc_relative */
858 complain_overflow_dont
, /* complain_on_overflow */
859 ppc64_elf_toc_reloc
, /* special_function */
860 "R_PPC64_TOC16_LO", /* name */
861 FALSE
, /* partial_inplace */
863 0xffff, /* dst_mask */
864 FALSE
), /* pcrel_offset */
866 /* 16 bit TOC-relative relocation, high 16 bits. */
868 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
869 HOWTO (R_PPC64_TOC16_HI
, /* type */
871 1, /* size (0 = byte, 1 = short, 2 = long) */
873 FALSE
, /* pc_relative */
875 complain_overflow_dont
, /* complain_on_overflow */
876 ppc64_elf_toc_reloc
, /* special_function */
877 "R_PPC64_TOC16_HI", /* name */
878 FALSE
, /* partial_inplace */
880 0xffff, /* dst_mask */
881 FALSE
), /* pcrel_offset */
883 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
884 contents of the low 16 bits, treated as a signed number, is
887 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
888 HOWTO (R_PPC64_TOC16_HA
, /* type */
890 1, /* size (0 = byte, 1 = short, 2 = long) */
892 FALSE
, /* pc_relative */
894 complain_overflow_dont
, /* complain_on_overflow */
895 ppc64_elf_toc_ha_reloc
, /* special_function */
896 "R_PPC64_TOC16_HA", /* name */
897 FALSE
, /* partial_inplace */
899 0xffff, /* dst_mask */
900 FALSE
), /* pcrel_offset */
902 /* 64-bit relocation; insert value of TOC base (.TOC.). */
904 /* R_PPC64_TOC 51 doubleword64 .TOC. */
905 HOWTO (R_PPC64_TOC
, /* type */
907 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
909 FALSE
, /* pc_relative */
911 complain_overflow_bitfield
, /* complain_on_overflow */
912 ppc64_elf_toc64_reloc
, /* special_function */
913 "R_PPC64_TOC", /* name */
914 FALSE
, /* partial_inplace */
916 ONES (64), /* dst_mask */
917 FALSE
), /* pcrel_offset */
919 /* Like R_PPC64_GOT16, but also informs the link editor that the
920 value to relocate may (!) refer to a PLT entry which the link
921 editor (a) may replace with the symbol value. If the link editor
922 is unable to fully resolve the symbol, it may (b) create a PLT
923 entry and store the address to the new PLT entry in the GOT.
924 This permits lazy resolution of function symbols at run time.
925 The link editor may also skip all of this and just (c) emit a
926 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
927 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
928 HOWTO (R_PPC64_PLTGOT16
, /* type */
930 1, /* size (0 = byte, 1 = short, 2 = long) */
932 FALSE
, /* pc_relative */
934 complain_overflow_signed
, /* complain_on_overflow */
935 ppc64_elf_unhandled_reloc
, /* special_function */
936 "R_PPC64_PLTGOT16", /* name */
937 FALSE
, /* partial_inplace */
939 0xffff, /* dst_mask */
940 FALSE
), /* pcrel_offset */
942 /* Like R_PPC64_PLTGOT16, but without overflow. */
943 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
944 HOWTO (R_PPC64_PLTGOT16_LO
, /* type */
946 1, /* size (0 = byte, 1 = short, 2 = long) */
948 FALSE
, /* pc_relative */
950 complain_overflow_dont
, /* complain_on_overflow */
951 ppc64_elf_unhandled_reloc
, /* special_function */
952 "R_PPC64_PLTGOT16_LO", /* name */
953 FALSE
, /* partial_inplace */
955 0xffff, /* dst_mask */
956 FALSE
), /* pcrel_offset */
958 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
959 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
960 HOWTO (R_PPC64_PLTGOT16_HI
, /* type */
962 1, /* size (0 = byte, 1 = short, 2 = long) */
964 FALSE
, /* pc_relative */
966 complain_overflow_dont
, /* complain_on_overflow */
967 ppc64_elf_unhandled_reloc
, /* special_function */
968 "R_PPC64_PLTGOT16_HI", /* name */
969 FALSE
, /* partial_inplace */
971 0xffff, /* dst_mask */
972 FALSE
), /* pcrel_offset */
974 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
975 1 if the contents of the low 16 bits, treated as a signed number,
977 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
978 HOWTO (R_PPC64_PLTGOT16_HA
, /* type */
980 1, /* size (0 = byte, 1 = short, 2 = long) */
982 FALSE
, /* pc_relative */
984 complain_overflow_dont
,/* complain_on_overflow */
985 ppc64_elf_unhandled_reloc
, /* special_function */
986 "R_PPC64_PLTGOT16_HA", /* name */
987 FALSE
, /* partial_inplace */
989 0xffff, /* dst_mask */
990 FALSE
), /* pcrel_offset */
992 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
993 HOWTO (R_PPC64_ADDR16_DS
, /* type */
995 1, /* size (0 = byte, 1 = short, 2 = long) */
997 FALSE
, /* pc_relative */
999 complain_overflow_bitfield
, /* complain_on_overflow */
1000 bfd_elf_generic_reloc
, /* special_function */
1001 "R_PPC64_ADDR16_DS", /* name */
1002 FALSE
, /* partial_inplace */
1004 0xfffc, /* dst_mask */
1005 FALSE
), /* pcrel_offset */
1007 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1008 HOWTO (R_PPC64_ADDR16_LO_DS
, /* type */
1010 1, /* size (0 = byte, 1 = short, 2 = long) */
1012 FALSE
, /* pc_relative */
1014 complain_overflow_dont
,/* complain_on_overflow */
1015 bfd_elf_generic_reloc
, /* special_function */
1016 "R_PPC64_ADDR16_LO_DS",/* name */
1017 FALSE
, /* partial_inplace */
1019 0xfffc, /* dst_mask */
1020 FALSE
), /* pcrel_offset */
1022 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1023 HOWTO (R_PPC64_GOT16_DS
, /* type */
1025 1, /* size (0 = byte, 1 = short, 2 = long) */
1027 FALSE
, /* pc_relative */
1029 complain_overflow_signed
, /* complain_on_overflow */
1030 ppc64_elf_unhandled_reloc
, /* special_function */
1031 "R_PPC64_GOT16_DS", /* name */
1032 FALSE
, /* partial_inplace */
1034 0xfffc, /* dst_mask */
1035 FALSE
), /* pcrel_offset */
1037 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1038 HOWTO (R_PPC64_GOT16_LO_DS
, /* type */
1040 1, /* size (0 = byte, 1 = short, 2 = long) */
1042 FALSE
, /* pc_relative */
1044 complain_overflow_dont
, /* complain_on_overflow */
1045 ppc64_elf_unhandled_reloc
, /* special_function */
1046 "R_PPC64_GOT16_LO_DS", /* name */
1047 FALSE
, /* partial_inplace */
1049 0xfffc, /* dst_mask */
1050 FALSE
), /* pcrel_offset */
1052 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1053 HOWTO (R_PPC64_PLT16_LO_DS
, /* type */
1055 1, /* size (0 = byte, 1 = short, 2 = long) */
1057 FALSE
, /* pc_relative */
1059 complain_overflow_dont
, /* complain_on_overflow */
1060 ppc64_elf_unhandled_reloc
, /* special_function */
1061 "R_PPC64_PLT16_LO_DS", /* name */
1062 FALSE
, /* partial_inplace */
1064 0xfffc, /* dst_mask */
1065 FALSE
), /* pcrel_offset */
1067 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1068 HOWTO (R_PPC64_SECTOFF_DS
, /* type */
1070 1, /* size (0 = byte, 1 = short, 2 = long) */
1072 FALSE
, /* pc_relative */
1074 complain_overflow_bitfield
, /* complain_on_overflow */
1075 ppc64_elf_sectoff_reloc
, /* special_function */
1076 "R_PPC64_SECTOFF_DS", /* name */
1077 FALSE
, /* partial_inplace */
1079 0xfffc, /* dst_mask */
1080 FALSE
), /* pcrel_offset */
1082 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1083 HOWTO (R_PPC64_SECTOFF_LO_DS
, /* type */
1085 1, /* size (0 = byte, 1 = short, 2 = long) */
1087 FALSE
, /* pc_relative */
1089 complain_overflow_dont
, /* complain_on_overflow */
1090 ppc64_elf_sectoff_reloc
, /* special_function */
1091 "R_PPC64_SECTOFF_LO_DS",/* name */
1092 FALSE
, /* partial_inplace */
1094 0xfffc, /* dst_mask */
1095 FALSE
), /* pcrel_offset */
1097 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1098 HOWTO (R_PPC64_TOC16_DS
, /* type */
1100 1, /* size (0 = byte, 1 = short, 2 = long) */
1102 FALSE
, /* pc_relative */
1104 complain_overflow_signed
, /* complain_on_overflow */
1105 ppc64_elf_toc_reloc
, /* special_function */
1106 "R_PPC64_TOC16_DS", /* name */
1107 FALSE
, /* partial_inplace */
1109 0xfffc, /* dst_mask */
1110 FALSE
), /* pcrel_offset */
1112 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1113 HOWTO (R_PPC64_TOC16_LO_DS
, /* type */
1115 1, /* size (0 = byte, 1 = short, 2 = long) */
1117 FALSE
, /* pc_relative */
1119 complain_overflow_dont
, /* complain_on_overflow */
1120 ppc64_elf_toc_reloc
, /* special_function */
1121 "R_PPC64_TOC16_LO_DS", /* name */
1122 FALSE
, /* partial_inplace */
1124 0xfffc, /* dst_mask */
1125 FALSE
), /* pcrel_offset */
1127 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1128 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1129 HOWTO (R_PPC64_PLTGOT16_DS
, /* type */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE
, /* pc_relative */
1135 complain_overflow_signed
, /* complain_on_overflow */
1136 ppc64_elf_unhandled_reloc
, /* special_function */
1137 "R_PPC64_PLTGOT16_DS", /* name */
1138 FALSE
, /* partial_inplace */
1140 0xfffc, /* dst_mask */
1141 FALSE
), /* pcrel_offset */
1143 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1144 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1145 HOWTO (R_PPC64_PLTGOT16_LO_DS
,/* type */
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 FALSE
, /* pc_relative */
1151 complain_overflow_dont
, /* complain_on_overflow */
1152 ppc64_elf_unhandled_reloc
, /* special_function */
1153 "R_PPC64_PLTGOT16_LO_DS",/* name */
1154 FALSE
, /* partial_inplace */
1156 0xfffc, /* dst_mask */
1157 FALSE
), /* pcrel_offset */
1159 /* Marker reloc for TLS. */
1162 2, /* size (0 = byte, 1 = short, 2 = long) */
1164 FALSE
, /* pc_relative */
1166 complain_overflow_dont
, /* complain_on_overflow */
1167 bfd_elf_generic_reloc
, /* special_function */
1168 "R_PPC64_TLS", /* name */
1169 FALSE
, /* partial_inplace */
1172 FALSE
), /* pcrel_offset */
1174 /* Computes the load module index of the load module that contains the
1175 definition of its TLS sym. */
1176 HOWTO (R_PPC64_DTPMOD64
,
1178 4, /* size (0 = byte, 1 = short, 2 = long) */
1180 FALSE
, /* pc_relative */
1182 complain_overflow_dont
, /* complain_on_overflow */
1183 ppc64_elf_unhandled_reloc
, /* special_function */
1184 "R_PPC64_DTPMOD64", /* name */
1185 FALSE
, /* partial_inplace */
1187 ONES (64), /* dst_mask */
1188 FALSE
), /* pcrel_offset */
1190 /* Computes a dtv-relative displacement, the difference between the value
1191 of sym+add and the base address of the thread-local storage block that
1192 contains the definition of sym, minus 0x8000. */
1193 HOWTO (R_PPC64_DTPREL64
,
1195 4, /* size (0 = byte, 1 = short, 2 = long) */
1197 FALSE
, /* pc_relative */
1199 complain_overflow_dont
, /* complain_on_overflow */
1200 ppc64_elf_unhandled_reloc
, /* special_function */
1201 "R_PPC64_DTPREL64", /* name */
1202 FALSE
, /* partial_inplace */
1204 ONES (64), /* dst_mask */
1205 FALSE
), /* pcrel_offset */
1207 /* A 16 bit dtprel reloc. */
1208 HOWTO (R_PPC64_DTPREL16
,
1210 1, /* size (0 = byte, 1 = short, 2 = long) */
1212 FALSE
, /* pc_relative */
1214 complain_overflow_signed
, /* complain_on_overflow */
1215 ppc64_elf_unhandled_reloc
, /* special_function */
1216 "R_PPC64_DTPREL16", /* name */
1217 FALSE
, /* partial_inplace */
1219 0xffff, /* dst_mask */
1220 FALSE
), /* pcrel_offset */
1222 /* Like DTPREL16, but no overflow. */
1223 HOWTO (R_PPC64_DTPREL16_LO
,
1225 1, /* size (0 = byte, 1 = short, 2 = long) */
1227 FALSE
, /* pc_relative */
1229 complain_overflow_dont
, /* complain_on_overflow */
1230 ppc64_elf_unhandled_reloc
, /* special_function */
1231 "R_PPC64_DTPREL16_LO", /* name */
1232 FALSE
, /* partial_inplace */
1234 0xffff, /* dst_mask */
1235 FALSE
), /* pcrel_offset */
1237 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1238 HOWTO (R_PPC64_DTPREL16_HI
,
1239 16, /* rightshift */
1240 1, /* size (0 = byte, 1 = short, 2 = long) */
1242 FALSE
, /* pc_relative */
1244 complain_overflow_dont
, /* complain_on_overflow */
1245 ppc64_elf_unhandled_reloc
, /* special_function */
1246 "R_PPC64_DTPREL16_HI", /* name */
1247 FALSE
, /* partial_inplace */
1249 0xffff, /* dst_mask */
1250 FALSE
), /* pcrel_offset */
1252 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1253 HOWTO (R_PPC64_DTPREL16_HA
,
1254 16, /* rightshift */
1255 1, /* size (0 = byte, 1 = short, 2 = long) */
1257 FALSE
, /* pc_relative */
1259 complain_overflow_dont
, /* complain_on_overflow */
1260 ppc64_elf_unhandled_reloc
, /* special_function */
1261 "R_PPC64_DTPREL16_HA", /* name */
1262 FALSE
, /* partial_inplace */
1264 0xffff, /* dst_mask */
1265 FALSE
), /* pcrel_offset */
1267 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1268 HOWTO (R_PPC64_DTPREL16_HIGHER
,
1269 32, /* rightshift */
1270 1, /* size (0 = byte, 1 = short, 2 = long) */
1272 FALSE
, /* pc_relative */
1274 complain_overflow_dont
, /* complain_on_overflow */
1275 ppc64_elf_unhandled_reloc
, /* special_function */
1276 "R_PPC64_DTPREL16_HIGHER", /* name */
1277 FALSE
, /* partial_inplace */
1279 0xffff, /* dst_mask */
1280 FALSE
), /* pcrel_offset */
1282 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1283 HOWTO (R_PPC64_DTPREL16_HIGHERA
,
1284 32, /* rightshift */
1285 1, /* size (0 = byte, 1 = short, 2 = long) */
1287 FALSE
, /* pc_relative */
1289 complain_overflow_dont
, /* complain_on_overflow */
1290 ppc64_elf_unhandled_reloc
, /* special_function */
1291 "R_PPC64_DTPREL16_HIGHERA", /* name */
1292 FALSE
, /* partial_inplace */
1294 0xffff, /* dst_mask */
1295 FALSE
), /* pcrel_offset */
1297 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1298 HOWTO (R_PPC64_DTPREL16_HIGHEST
,
1299 48, /* rightshift */
1300 1, /* size (0 = byte, 1 = short, 2 = long) */
1302 FALSE
, /* pc_relative */
1304 complain_overflow_dont
, /* complain_on_overflow */
1305 ppc64_elf_unhandled_reloc
, /* special_function */
1306 "R_PPC64_DTPREL16_HIGHEST", /* name */
1307 FALSE
, /* partial_inplace */
1309 0xffff, /* dst_mask */
1310 FALSE
), /* pcrel_offset */
1312 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1313 HOWTO (R_PPC64_DTPREL16_HIGHESTA
,
1314 48, /* rightshift */
1315 1, /* size (0 = byte, 1 = short, 2 = long) */
1317 FALSE
, /* pc_relative */
1319 complain_overflow_dont
, /* complain_on_overflow */
1320 ppc64_elf_unhandled_reloc
, /* special_function */
1321 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1322 FALSE
, /* partial_inplace */
1324 0xffff, /* dst_mask */
1325 FALSE
), /* pcrel_offset */
1327 /* Like DTPREL16, but for insns with a DS field. */
1328 HOWTO (R_PPC64_DTPREL16_DS
,
1330 1, /* size (0 = byte, 1 = short, 2 = long) */
1332 FALSE
, /* pc_relative */
1334 complain_overflow_signed
, /* complain_on_overflow */
1335 ppc64_elf_unhandled_reloc
, /* special_function */
1336 "R_PPC64_DTPREL16_DS", /* name */
1337 FALSE
, /* partial_inplace */
1339 0xfffc, /* dst_mask */
1340 FALSE
), /* pcrel_offset */
1342 /* Like DTPREL16_DS, but no overflow. */
1343 HOWTO (R_PPC64_DTPREL16_LO_DS
,
1345 1, /* size (0 = byte, 1 = short, 2 = long) */
1347 FALSE
, /* pc_relative */
1349 complain_overflow_dont
, /* complain_on_overflow */
1350 ppc64_elf_unhandled_reloc
, /* special_function */
1351 "R_PPC64_DTPREL16_LO_DS", /* name */
1352 FALSE
, /* partial_inplace */
1354 0xfffc, /* dst_mask */
1355 FALSE
), /* pcrel_offset */
1357 /* Computes a tp-relative displacement, the difference between the value of
1358 sym+add and the value of the thread pointer (r13). */
1359 HOWTO (R_PPC64_TPREL64
,
1361 4, /* size (0 = byte, 1 = short, 2 = long) */
1363 FALSE
, /* pc_relative */
1365 complain_overflow_dont
, /* complain_on_overflow */
1366 ppc64_elf_unhandled_reloc
, /* special_function */
1367 "R_PPC64_TPREL64", /* name */
1368 FALSE
, /* partial_inplace */
1370 ONES (64), /* dst_mask */
1371 FALSE
), /* pcrel_offset */
1373 /* A 16 bit tprel reloc. */
1374 HOWTO (R_PPC64_TPREL16
,
1376 1, /* size (0 = byte, 1 = short, 2 = long) */
1378 FALSE
, /* pc_relative */
1380 complain_overflow_signed
, /* complain_on_overflow */
1381 ppc64_elf_unhandled_reloc
, /* special_function */
1382 "R_PPC64_TPREL16", /* name */
1383 FALSE
, /* partial_inplace */
1385 0xffff, /* dst_mask */
1386 FALSE
), /* pcrel_offset */
1388 /* Like TPREL16, but no overflow. */
1389 HOWTO (R_PPC64_TPREL16_LO
,
1391 1, /* size (0 = byte, 1 = short, 2 = long) */
1393 FALSE
, /* pc_relative */
1395 complain_overflow_dont
, /* complain_on_overflow */
1396 ppc64_elf_unhandled_reloc
, /* special_function */
1397 "R_PPC64_TPREL16_LO", /* name */
1398 FALSE
, /* partial_inplace */
1400 0xffff, /* dst_mask */
1401 FALSE
), /* pcrel_offset */
1403 /* Like TPREL16_LO, but next higher group of 16 bits. */
1404 HOWTO (R_PPC64_TPREL16_HI
,
1405 16, /* rightshift */
1406 1, /* size (0 = byte, 1 = short, 2 = long) */
1408 FALSE
, /* pc_relative */
1410 complain_overflow_dont
, /* complain_on_overflow */
1411 ppc64_elf_unhandled_reloc
, /* special_function */
1412 "R_PPC64_TPREL16_HI", /* name */
1413 FALSE
, /* partial_inplace */
1415 0xffff, /* dst_mask */
1416 FALSE
), /* pcrel_offset */
1418 /* Like TPREL16_HI, but adjust for low 16 bits. */
1419 HOWTO (R_PPC64_TPREL16_HA
,
1420 16, /* rightshift */
1421 1, /* size (0 = byte, 1 = short, 2 = long) */
1423 FALSE
, /* pc_relative */
1425 complain_overflow_dont
, /* complain_on_overflow */
1426 ppc64_elf_unhandled_reloc
, /* special_function */
1427 "R_PPC64_TPREL16_HA", /* name */
1428 FALSE
, /* partial_inplace */
1430 0xffff, /* dst_mask */
1431 FALSE
), /* pcrel_offset */
1433 /* Like TPREL16_HI, but next higher group of 16 bits. */
1434 HOWTO (R_PPC64_TPREL16_HIGHER
,
1435 32, /* rightshift */
1436 1, /* size (0 = byte, 1 = short, 2 = long) */
1438 FALSE
, /* pc_relative */
1440 complain_overflow_dont
, /* complain_on_overflow */
1441 ppc64_elf_unhandled_reloc
, /* special_function */
1442 "R_PPC64_TPREL16_HIGHER", /* name */
1443 FALSE
, /* partial_inplace */
1445 0xffff, /* dst_mask */
1446 FALSE
), /* pcrel_offset */
1448 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1449 HOWTO (R_PPC64_TPREL16_HIGHERA
,
1450 32, /* rightshift */
1451 1, /* size (0 = byte, 1 = short, 2 = long) */
1453 FALSE
, /* pc_relative */
1455 complain_overflow_dont
, /* complain_on_overflow */
1456 ppc64_elf_unhandled_reloc
, /* special_function */
1457 "R_PPC64_TPREL16_HIGHERA", /* name */
1458 FALSE
, /* partial_inplace */
1460 0xffff, /* dst_mask */
1461 FALSE
), /* pcrel_offset */
1463 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1464 HOWTO (R_PPC64_TPREL16_HIGHEST
,
1465 48, /* rightshift */
1466 1, /* size (0 = byte, 1 = short, 2 = long) */
1468 FALSE
, /* pc_relative */
1470 complain_overflow_dont
, /* complain_on_overflow */
1471 ppc64_elf_unhandled_reloc
, /* special_function */
1472 "R_PPC64_TPREL16_HIGHEST", /* name */
1473 FALSE
, /* partial_inplace */
1475 0xffff, /* dst_mask */
1476 FALSE
), /* pcrel_offset */
1478 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1479 HOWTO (R_PPC64_TPREL16_HIGHESTA
,
1480 48, /* rightshift */
1481 1, /* size (0 = byte, 1 = short, 2 = long) */
1483 FALSE
, /* pc_relative */
1485 complain_overflow_dont
, /* complain_on_overflow */
1486 ppc64_elf_unhandled_reloc
, /* special_function */
1487 "R_PPC64_TPREL16_HIGHESTA", /* name */
1488 FALSE
, /* partial_inplace */
1490 0xffff, /* dst_mask */
1491 FALSE
), /* pcrel_offset */
1493 /* Like TPREL16, but for insns with a DS field. */
1494 HOWTO (R_PPC64_TPREL16_DS
,
1496 1, /* size (0 = byte, 1 = short, 2 = long) */
1498 FALSE
, /* pc_relative */
1500 complain_overflow_signed
, /* complain_on_overflow */
1501 ppc64_elf_unhandled_reloc
, /* special_function */
1502 "R_PPC64_TPREL16_DS", /* name */
1503 FALSE
, /* partial_inplace */
1505 0xfffc, /* dst_mask */
1506 FALSE
), /* pcrel_offset */
1508 /* Like TPREL16_DS, but no overflow. */
1509 HOWTO (R_PPC64_TPREL16_LO_DS
,
1511 1, /* size (0 = byte, 1 = short, 2 = long) */
1513 FALSE
, /* pc_relative */
1515 complain_overflow_dont
, /* complain_on_overflow */
1516 ppc64_elf_unhandled_reloc
, /* special_function */
1517 "R_PPC64_TPREL16_LO_DS", /* name */
1518 FALSE
, /* partial_inplace */
1520 0xfffc, /* dst_mask */
1521 FALSE
), /* pcrel_offset */
1523 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1524 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1525 to the first entry relative to the TOC base (r2). */
1526 HOWTO (R_PPC64_GOT_TLSGD16
,
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 FALSE
, /* pc_relative */
1532 complain_overflow_signed
, /* complain_on_overflow */
1533 ppc64_elf_unhandled_reloc
, /* special_function */
1534 "R_PPC64_GOT_TLSGD16", /* name */
1535 FALSE
, /* partial_inplace */
1537 0xffff, /* dst_mask */
1538 FALSE
), /* pcrel_offset */
1540 /* Like GOT_TLSGD16, but no overflow. */
1541 HOWTO (R_PPC64_GOT_TLSGD16_LO
,
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 FALSE
, /* pc_relative */
1547 complain_overflow_dont
, /* complain_on_overflow */
1548 ppc64_elf_unhandled_reloc
, /* special_function */
1549 "R_PPC64_GOT_TLSGD16_LO", /* name */
1550 FALSE
, /* partial_inplace */
1552 0xffff, /* dst_mask */
1553 FALSE
), /* pcrel_offset */
1555 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1556 HOWTO (R_PPC64_GOT_TLSGD16_HI
,
1557 16, /* rightshift */
1558 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 FALSE
, /* pc_relative */
1562 complain_overflow_dont
, /* complain_on_overflow */
1563 ppc64_elf_unhandled_reloc
, /* special_function */
1564 "R_PPC64_GOT_TLSGD16_HI", /* name */
1565 FALSE
, /* partial_inplace */
1567 0xffff, /* dst_mask */
1568 FALSE
), /* pcrel_offset */
1570 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1571 HOWTO (R_PPC64_GOT_TLSGD16_HA
,
1572 16, /* rightshift */
1573 1, /* size (0 = byte, 1 = short, 2 = long) */
1575 FALSE
, /* pc_relative */
1577 complain_overflow_dont
, /* complain_on_overflow */
1578 ppc64_elf_unhandled_reloc
, /* special_function */
1579 "R_PPC64_GOT_TLSGD16_HA", /* name */
1580 FALSE
, /* partial_inplace */
1582 0xffff, /* dst_mask */
1583 FALSE
), /* pcrel_offset */
1585 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1586 with values (sym+add)@dtpmod and zero, and computes the offset to the
1587 first entry relative to the TOC base (r2). */
1588 HOWTO (R_PPC64_GOT_TLSLD16
,
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1592 FALSE
, /* pc_relative */
1594 complain_overflow_signed
, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc
, /* special_function */
1596 "R_PPC64_GOT_TLSLD16", /* name */
1597 FALSE
, /* partial_inplace */
1599 0xffff, /* dst_mask */
1600 FALSE
), /* pcrel_offset */
1602 /* Like GOT_TLSLD16, but no overflow. */
1603 HOWTO (R_PPC64_GOT_TLSLD16_LO
,
1605 1, /* size (0 = byte, 1 = short, 2 = long) */
1607 FALSE
, /* pc_relative */
1609 complain_overflow_dont
, /* complain_on_overflow */
1610 ppc64_elf_unhandled_reloc
, /* special_function */
1611 "R_PPC64_GOT_TLSLD16_LO", /* name */
1612 FALSE
, /* partial_inplace */
1614 0xffff, /* dst_mask */
1615 FALSE
), /* pcrel_offset */
1617 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1618 HOWTO (R_PPC64_GOT_TLSLD16_HI
,
1619 16, /* rightshift */
1620 1, /* size (0 = byte, 1 = short, 2 = long) */
1622 FALSE
, /* pc_relative */
1624 complain_overflow_dont
, /* complain_on_overflow */
1625 ppc64_elf_unhandled_reloc
, /* special_function */
1626 "R_PPC64_GOT_TLSLD16_HI", /* name */
1627 FALSE
, /* partial_inplace */
1629 0xffff, /* dst_mask */
1630 FALSE
), /* pcrel_offset */
1632 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1633 HOWTO (R_PPC64_GOT_TLSLD16_HA
,
1634 16, /* rightshift */
1635 1, /* size (0 = byte, 1 = short, 2 = long) */
1637 FALSE
, /* pc_relative */
1639 complain_overflow_dont
, /* complain_on_overflow */
1640 ppc64_elf_unhandled_reloc
, /* special_function */
1641 "R_PPC64_GOT_TLSLD16_HA", /* name */
1642 FALSE
, /* partial_inplace */
1644 0xffff, /* dst_mask */
1645 FALSE
), /* pcrel_offset */
1647 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1648 the offset to the entry relative to the TOC base (r2). */
1649 HOWTO (R_PPC64_GOT_DTPREL16_DS
,
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE
, /* pc_relative */
1655 complain_overflow_signed
, /* complain_on_overflow */
1656 ppc64_elf_unhandled_reloc
, /* special_function */
1657 "R_PPC64_GOT_DTPREL16_DS", /* name */
1658 FALSE
, /* partial_inplace */
1660 0xfffc, /* dst_mask */
1661 FALSE
), /* pcrel_offset */
1663 /* Like GOT_DTPREL16_DS, but no overflow. */
1664 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS
,
1666 1, /* size (0 = byte, 1 = short, 2 = long) */
1668 FALSE
, /* pc_relative */
1670 complain_overflow_dont
, /* complain_on_overflow */
1671 ppc64_elf_unhandled_reloc
, /* special_function */
1672 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1673 FALSE
, /* partial_inplace */
1675 0xfffc, /* dst_mask */
1676 FALSE
), /* pcrel_offset */
1678 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1679 HOWTO (R_PPC64_GOT_DTPREL16_HI
,
1680 16, /* rightshift */
1681 1, /* size (0 = byte, 1 = short, 2 = long) */
1683 FALSE
, /* pc_relative */
1685 complain_overflow_dont
, /* complain_on_overflow */
1686 ppc64_elf_unhandled_reloc
, /* special_function */
1687 "R_PPC64_GOT_DTPREL16_HI", /* name */
1688 FALSE
, /* partial_inplace */
1690 0xffff, /* dst_mask */
1691 FALSE
), /* pcrel_offset */
1693 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1694 HOWTO (R_PPC64_GOT_DTPREL16_HA
,
1695 16, /* rightshift */
1696 1, /* size (0 = byte, 1 = short, 2 = long) */
1698 FALSE
, /* pc_relative */
1700 complain_overflow_dont
, /* complain_on_overflow */
1701 ppc64_elf_unhandled_reloc
, /* special_function */
1702 "R_PPC64_GOT_DTPREL16_HA", /* name */
1703 FALSE
, /* partial_inplace */
1705 0xffff, /* dst_mask */
1706 FALSE
), /* pcrel_offset */
1708 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1709 offset to the entry relative to the TOC base (r2). */
1710 HOWTO (R_PPC64_GOT_TPREL16_DS
,
1712 1, /* size (0 = byte, 1 = short, 2 = long) */
1714 FALSE
, /* pc_relative */
1716 complain_overflow_signed
, /* complain_on_overflow */
1717 ppc64_elf_unhandled_reloc
, /* special_function */
1718 "R_PPC64_GOT_TPREL16_DS", /* name */
1719 FALSE
, /* partial_inplace */
1721 0xffff, /* dst_mask */
1722 FALSE
), /* pcrel_offset */
1724 /* Like GOT_TPREL16_DS, but no overflow. */
1725 HOWTO (R_PPC64_GOT_TPREL16_LO_DS
,
1727 1, /* size (0 = byte, 1 = short, 2 = long) */
1729 FALSE
, /* pc_relative */
1731 complain_overflow_dont
, /* complain_on_overflow */
1732 ppc64_elf_unhandled_reloc
, /* special_function */
1733 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1734 FALSE
, /* partial_inplace */
1736 0xffff, /* dst_mask */
1737 FALSE
), /* pcrel_offset */
1739 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1740 HOWTO (R_PPC64_GOT_TPREL16_HI
,
1741 16, /* rightshift */
1742 1, /* size (0 = byte, 1 = short, 2 = long) */
1744 FALSE
, /* pc_relative */
1746 complain_overflow_dont
, /* complain_on_overflow */
1747 ppc64_elf_unhandled_reloc
, /* special_function */
1748 "R_PPC64_GOT_TPREL16_HI", /* name */
1749 FALSE
, /* partial_inplace */
1751 0xffff, /* dst_mask */
1752 FALSE
), /* pcrel_offset */
1754 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1755 HOWTO (R_PPC64_GOT_TPREL16_HA
,
1756 16, /* rightshift */
1757 1, /* size (0 = byte, 1 = short, 2 = long) */
1759 FALSE
, /* pc_relative */
1761 complain_overflow_dont
, /* complain_on_overflow */
1762 ppc64_elf_unhandled_reloc
, /* special_function */
1763 "R_PPC64_GOT_TPREL16_HA", /* name */
1764 FALSE
, /* partial_inplace */
1766 0xffff, /* dst_mask */
1767 FALSE
), /* pcrel_offset */
1769 /* GNU extension to record C++ vtable hierarchy. */
1770 HOWTO (R_PPC64_GNU_VTINHERIT
, /* type */
1772 0, /* size (0 = byte, 1 = short, 2 = long) */
1774 FALSE
, /* pc_relative */
1776 complain_overflow_dont
, /* complain_on_overflow */
1777 NULL
, /* special_function */
1778 "R_PPC64_GNU_VTINHERIT", /* name */
1779 FALSE
, /* partial_inplace */
1782 FALSE
), /* pcrel_offset */
1784 /* GNU extension to record C++ vtable member usage. */
1785 HOWTO (R_PPC64_GNU_VTENTRY
, /* type */
1787 0, /* size (0 = byte, 1 = short, 2 = long) */
1789 FALSE
, /* pc_relative */
1791 complain_overflow_dont
, /* complain_on_overflow */
1792 NULL
, /* special_function */
1793 "R_PPC64_GNU_VTENTRY", /* name */
1794 FALSE
, /* partial_inplace */
1797 FALSE
), /* pcrel_offset */
1801 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1807 unsigned int i
, type
;
1810 i
< sizeof (ppc64_elf_howto_raw
) / sizeof (ppc64_elf_howto_raw
[0]);
1813 type
= ppc64_elf_howto_raw
[i
].type
;
1814 BFD_ASSERT (type
< (sizeof (ppc64_elf_howto_table
)
1815 / sizeof (ppc64_elf_howto_table
[0])));
1816 ppc64_elf_howto_table
[type
] = &ppc64_elf_howto_raw
[i
];
1820 static reloc_howto_type
*
1821 ppc64_elf_reloc_type_lookup (abfd
, code
)
1822 bfd
*abfd ATTRIBUTE_UNUSED
;
1823 bfd_reloc_code_real_type code
;
1825 enum elf_ppc64_reloc_type r
= R_PPC64_NONE
;
1827 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
1828 /* Initialize howto table if needed. */
1834 return (reloc_howto_type
*) NULL
;
1836 case BFD_RELOC_NONE
: r
= R_PPC64_NONE
;
1838 case BFD_RELOC_32
: r
= R_PPC64_ADDR32
;
1840 case BFD_RELOC_PPC_BA26
: r
= R_PPC64_ADDR24
;
1842 case BFD_RELOC_16
: r
= R_PPC64_ADDR16
;
1844 case BFD_RELOC_LO16
: r
= R_PPC64_ADDR16_LO
;
1846 case BFD_RELOC_HI16
: r
= R_PPC64_ADDR16_HI
;
1848 case BFD_RELOC_HI16_S
: r
= R_PPC64_ADDR16_HA
;
1850 case BFD_RELOC_PPC_BA16
: r
= R_PPC64_ADDR14
;
1852 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC64_ADDR14_BRTAKEN
;
1854 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC64_ADDR14_BRNTAKEN
;
1856 case BFD_RELOC_PPC_B26
: r
= R_PPC64_REL24
;
1858 case BFD_RELOC_PPC_B16
: r
= R_PPC64_REL14
;
1860 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC64_REL14_BRTAKEN
;
1862 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC64_REL14_BRNTAKEN
;
1864 case BFD_RELOC_16_GOTOFF
: r
= R_PPC64_GOT16
;
1866 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC64_GOT16_LO
;
1868 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC64_GOT16_HI
;
1870 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC64_GOT16_HA
;
1872 case BFD_RELOC_PPC_COPY
: r
= R_PPC64_COPY
;
1874 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC64_GLOB_DAT
;
1876 case BFD_RELOC_32_PCREL
: r
= R_PPC64_REL32
;
1878 case BFD_RELOC_32_PLTOFF
: r
= R_PPC64_PLT32
;
1880 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC64_PLTREL32
;
1882 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC64_PLT16_LO
;
1884 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC64_PLT16_HI
;
1886 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC64_PLT16_HA
;
1888 case BFD_RELOC_16_BASEREL
: r
= R_PPC64_SECTOFF
;
1890 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC64_SECTOFF_LO
;
1892 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC64_SECTOFF_HI
;
1894 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC64_SECTOFF_HA
;
1896 case BFD_RELOC_CTOR
: r
= R_PPC64_ADDR64
;
1898 case BFD_RELOC_64
: r
= R_PPC64_ADDR64
;
1900 case BFD_RELOC_PPC64_HIGHER
: r
= R_PPC64_ADDR16_HIGHER
;
1902 case BFD_RELOC_PPC64_HIGHER_S
: r
= R_PPC64_ADDR16_HIGHERA
;
1904 case BFD_RELOC_PPC64_HIGHEST
: r
= R_PPC64_ADDR16_HIGHEST
;
1906 case BFD_RELOC_PPC64_HIGHEST_S
: r
= R_PPC64_ADDR16_HIGHESTA
;
1908 case BFD_RELOC_64_PCREL
: r
= R_PPC64_REL64
;
1910 case BFD_RELOC_64_PLTOFF
: r
= R_PPC64_PLT64
;
1912 case BFD_RELOC_64_PLT_PCREL
: r
= R_PPC64_PLTREL64
;
1914 case BFD_RELOC_PPC_TOC16
: r
= R_PPC64_TOC16
;
1916 case BFD_RELOC_PPC64_TOC16_LO
: r
= R_PPC64_TOC16_LO
;
1918 case BFD_RELOC_PPC64_TOC16_HI
: r
= R_PPC64_TOC16_HI
;
1920 case BFD_RELOC_PPC64_TOC16_HA
: r
= R_PPC64_TOC16_HA
;
1922 case BFD_RELOC_PPC64_TOC
: r
= R_PPC64_TOC
;
1924 case BFD_RELOC_PPC64_PLTGOT16
: r
= R_PPC64_PLTGOT16
;
1926 case BFD_RELOC_PPC64_PLTGOT16_LO
: r
= R_PPC64_PLTGOT16_LO
;
1928 case BFD_RELOC_PPC64_PLTGOT16_HI
: r
= R_PPC64_PLTGOT16_HI
;
1930 case BFD_RELOC_PPC64_PLTGOT16_HA
: r
= R_PPC64_PLTGOT16_HA
;
1932 case BFD_RELOC_PPC64_ADDR16_DS
: r
= R_PPC64_ADDR16_DS
;
1934 case BFD_RELOC_PPC64_ADDR16_LO_DS
: r
= R_PPC64_ADDR16_LO_DS
;
1936 case BFD_RELOC_PPC64_GOT16_DS
: r
= R_PPC64_GOT16_DS
;
1938 case BFD_RELOC_PPC64_GOT16_LO_DS
: r
= R_PPC64_GOT16_LO_DS
;
1940 case BFD_RELOC_PPC64_PLT16_LO_DS
: r
= R_PPC64_PLT16_LO_DS
;
1942 case BFD_RELOC_PPC64_SECTOFF_DS
: r
= R_PPC64_SECTOFF_DS
;
1944 case BFD_RELOC_PPC64_SECTOFF_LO_DS
: r
= R_PPC64_SECTOFF_LO_DS
;
1946 case BFD_RELOC_PPC64_TOC16_DS
: r
= R_PPC64_TOC16_DS
;
1948 case BFD_RELOC_PPC64_TOC16_LO_DS
: r
= R_PPC64_TOC16_LO_DS
;
1950 case BFD_RELOC_PPC64_PLTGOT16_DS
: r
= R_PPC64_PLTGOT16_DS
;
1952 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
: r
= R_PPC64_PLTGOT16_LO_DS
;
1954 case BFD_RELOC_PPC_TLS
: r
= R_PPC64_TLS
;
1956 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC64_DTPMOD64
;
1958 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC64_TPREL16
;
1960 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC64_TPREL16_LO
;
1962 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC64_TPREL16_HI
;
1964 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC64_TPREL16_HA
;
1966 case BFD_RELOC_PPC_TPREL
: r
= R_PPC64_TPREL64
;
1968 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC64_DTPREL16
;
1970 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC64_DTPREL16_LO
;
1972 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC64_DTPREL16_HI
;
1974 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC64_DTPREL16_HA
;
1976 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC64_DTPREL64
;
1978 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC64_GOT_TLSGD16
;
1980 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC64_GOT_TLSGD16_LO
;
1982 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC64_GOT_TLSGD16_HI
;
1984 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC64_GOT_TLSGD16_HA
;
1986 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC64_GOT_TLSLD16
;
1988 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC64_GOT_TLSLD16_LO
;
1990 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC64_GOT_TLSLD16_HI
;
1992 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC64_GOT_TLSLD16_HA
;
1994 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC64_GOT_TPREL16_DS
;
1996 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC64_GOT_TPREL16_LO_DS
;
1998 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC64_GOT_TPREL16_HI
;
2000 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC64_GOT_TPREL16_HA
;
2002 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC64_GOT_DTPREL16_DS
;
2004 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC64_GOT_DTPREL16_LO_DS
;
2006 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC64_GOT_DTPREL16_HI
;
2008 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC64_GOT_DTPREL16_HA
;
2010 case BFD_RELOC_PPC64_TPREL16_DS
: r
= R_PPC64_TPREL16_DS
;
2012 case BFD_RELOC_PPC64_TPREL16_LO_DS
: r
= R_PPC64_TPREL16_LO_DS
;
2014 case BFD_RELOC_PPC64_TPREL16_HIGHER
: r
= R_PPC64_TPREL16_HIGHER
;
2016 case BFD_RELOC_PPC64_TPREL16_HIGHERA
: r
= R_PPC64_TPREL16_HIGHERA
;
2018 case BFD_RELOC_PPC64_TPREL16_HIGHEST
: r
= R_PPC64_TPREL16_HIGHEST
;
2020 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
: r
= R_PPC64_TPREL16_HIGHESTA
;
2022 case BFD_RELOC_PPC64_DTPREL16_DS
: r
= R_PPC64_DTPREL16_DS
;
2024 case BFD_RELOC_PPC64_DTPREL16_LO_DS
: r
= R_PPC64_DTPREL16_LO_DS
;
2026 case BFD_RELOC_PPC64_DTPREL16_HIGHER
: r
= R_PPC64_DTPREL16_HIGHER
;
2028 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
: r
= R_PPC64_DTPREL16_HIGHERA
;
2030 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
: r
= R_PPC64_DTPREL16_HIGHEST
;
2032 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
: r
= R_PPC64_DTPREL16_HIGHESTA
;
2034 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC64_GNU_VTINHERIT
;
2036 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC64_GNU_VTENTRY
;
2040 return ppc64_elf_howto_table
[(int) r
];
2043 /* Set the howto pointer for a PowerPC ELF reloc. */
2046 ppc64_elf_info_to_howto (abfd
, cache_ptr
, dst
)
2047 bfd
*abfd ATTRIBUTE_UNUSED
;
2049 Elf_Internal_Rela
*dst
;
2053 /* Initialize howto table if needed. */
2054 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
2057 type
= ELF64_R_TYPE (dst
->r_info
);
2058 BFD_ASSERT (type
< (sizeof (ppc64_elf_howto_table
)
2059 / sizeof (ppc64_elf_howto_table
[0])));
2060 cache_ptr
->howto
= ppc64_elf_howto_table
[type
];
2063 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2065 static bfd_reloc_status_type
2066 ppc64_elf_ha_reloc (abfd
, reloc_entry
, symbol
, data
,
2067 input_section
, output_bfd
, error_message
)
2069 arelent
*reloc_entry
;
2072 asection
*input_section
;
2074 char **error_message
;
2076 /* If this is a relocatable link (output_bfd test tells us), just
2077 call the generic function. Any adjustment will be done at final
2079 if (output_bfd
!= NULL
)
2080 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2081 input_section
, output_bfd
, error_message
);
2083 /* Adjust the addend for sign extension of the low 16 bits.
2084 We won't actually be using the low 16 bits, so trashing them
2086 reloc_entry
->addend
+= 0x8000;
2087 return bfd_reloc_continue
;
2090 static bfd_reloc_status_type
2091 ppc64_elf_brtaken_reloc (abfd
, reloc_entry
, symbol
, data
,
2092 input_section
, output_bfd
, error_message
)
2094 arelent
*reloc_entry
;
2097 asection
*input_section
;
2099 char **error_message
;
2102 enum elf_ppc64_reloc_type r_type
;
2103 bfd_size_type octets
;
2104 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2105 bfd_boolean is_power4
= FALSE
;
2107 /* If this is a relocatable link (output_bfd test tells us), just
2108 call the generic function. Any adjustment will be done at final
2110 if (output_bfd
!= NULL
)
2111 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2112 input_section
, output_bfd
, error_message
);
2114 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2115 insn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ octets
);
2116 insn
&= ~(0x01 << 21);
2117 r_type
= (enum elf_ppc64_reloc_type
) reloc_entry
->howto
->type
;
2118 if (r_type
== R_PPC64_ADDR14_BRTAKEN
2119 || r_type
== R_PPC64_REL14_BRTAKEN
)
2120 insn
|= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2124 /* Set 'a' bit. This is 0b00010 in BO field for branch
2125 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2126 for branch on CTR insns (BO == 1a00t or 1a01t). */
2127 if ((insn
& (0x14 << 21)) == (0x04 << 21))
2129 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
2132 return bfd_reloc_continue
;
2139 if (!bfd_is_com_section (symbol
->section
))
2140 target
= symbol
->value
;
2141 target
+= symbol
->section
->output_section
->vma
;
2142 target
+= symbol
->section
->output_offset
;
2143 target
+= reloc_entry
->addend
;
2145 from
= (reloc_entry
->address
2146 + input_section
->output_offset
2147 + input_section
->output_section
->vma
);
2149 /* Invert 'y' bit if not the default. */
2150 if ((bfd_signed_vma
) (target
- from
) < 0)
2153 bfd_put_32 (abfd
, (bfd_vma
) insn
, (bfd_byte
*) data
+ octets
);
2154 return bfd_reloc_continue
;
2157 static bfd_reloc_status_type
2158 ppc64_elf_sectoff_reloc (abfd
, reloc_entry
, symbol
, data
,
2159 input_section
, output_bfd
, error_message
)
2161 arelent
*reloc_entry
;
2164 asection
*input_section
;
2166 char **error_message
;
2168 /* If this is a relocatable link (output_bfd test tells us), just
2169 call the generic function. Any adjustment will be done at final
2171 if (output_bfd
!= NULL
)
2172 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2173 input_section
, output_bfd
, error_message
);
2175 /* Subtract the symbol section base address. */
2176 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2177 return bfd_reloc_continue
;
2180 static bfd_reloc_status_type
2181 ppc64_elf_sectoff_ha_reloc (abfd
, reloc_entry
, symbol
, data
,
2182 input_section
, output_bfd
, error_message
)
2184 arelent
*reloc_entry
;
2187 asection
*input_section
;
2189 char **error_message
;
2191 /* If this is a relocatable link (output_bfd test tells us), just
2192 call the generic function. Any adjustment will be done at final
2194 if (output_bfd
!= NULL
)
2195 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2196 input_section
, output_bfd
, error_message
);
2198 /* Subtract the symbol section base address. */
2199 reloc_entry
->addend
-= symbol
->section
->output_section
->vma
;
2201 /* Adjust the addend for sign extension of the low 16 bits. */
2202 reloc_entry
->addend
+= 0x8000;
2203 return bfd_reloc_continue
;
2206 static bfd_reloc_status_type
2207 ppc64_elf_toc_reloc (abfd
, reloc_entry
, symbol
, data
,
2208 input_section
, output_bfd
, error_message
)
2210 arelent
*reloc_entry
;
2213 asection
*input_section
;
2215 char **error_message
;
2219 /* If this is a relocatable link (output_bfd test tells us), just
2220 call the generic function. Any adjustment will be done at final
2222 if (output_bfd
!= NULL
)
2223 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2224 input_section
, output_bfd
, error_message
);
2226 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2228 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2230 /* Subtract the TOC base address. */
2231 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2232 return bfd_reloc_continue
;
2235 static bfd_reloc_status_type
2236 ppc64_elf_toc_ha_reloc (abfd
, reloc_entry
, symbol
, data
,
2237 input_section
, output_bfd
, error_message
)
2239 arelent
*reloc_entry
;
2242 asection
*input_section
;
2244 char **error_message
;
2248 /* If this is a relocatable link (output_bfd test tells us), just
2249 call the generic function. Any adjustment will be done at final
2251 if (output_bfd
!= NULL
)
2252 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2253 input_section
, output_bfd
, error_message
);
2255 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2257 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2259 /* Subtract the TOC base address. */
2260 reloc_entry
->addend
-= TOCstart
+ TOC_BASE_OFF
;
2262 /* Adjust the addend for sign extension of the low 16 bits. */
2263 reloc_entry
->addend
+= 0x8000;
2264 return bfd_reloc_continue
;
2267 static bfd_reloc_status_type
2268 ppc64_elf_toc64_reloc (abfd
, reloc_entry
, symbol
, data
,
2269 input_section
, output_bfd
, error_message
)
2271 arelent
*reloc_entry
;
2274 asection
*input_section
;
2276 char **error_message
;
2279 bfd_size_type octets
;
2281 /* If this is a relocatable link (output_bfd test tells us), just
2282 call the generic function. Any adjustment will be done at final
2284 if (output_bfd
!= NULL
)
2285 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2286 input_section
, output_bfd
, error_message
);
2288 TOCstart
= _bfd_get_gp_value (input_section
->output_section
->owner
);
2290 TOCstart
= ppc64_elf_toc (input_section
->output_section
->owner
);
2292 octets
= reloc_entry
->address
* bfd_octets_per_byte (abfd
);
2293 bfd_put_64 (abfd
, TOCstart
+ TOC_BASE_OFF
, (bfd_byte
*) data
+ octets
);
2294 return bfd_reloc_ok
;
2297 static bfd_reloc_status_type
2298 ppc64_elf_unhandled_reloc (abfd
, reloc_entry
, symbol
, data
,
2299 input_section
, output_bfd
, error_message
)
2301 arelent
*reloc_entry
;
2304 asection
*input_section
;
2306 char **error_message
;
2308 /* If this is a relocatable link (output_bfd test tells us), just
2309 call the generic function. Any adjustment will be done at final
2311 if (output_bfd
!= NULL
)
2312 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
2313 input_section
, output_bfd
, error_message
);
2315 if (error_message
!= NULL
)
2317 static char buf
[60];
2318 sprintf (buf
, "generic linker can't handle %s",
2319 reloc_entry
->howto
->name
);
2320 *error_message
= buf
;
2322 return bfd_reloc_dangerous
;
2325 /* Fix bad default arch selected for a 64 bit input bfd when the
2326 default is 32 bit. */
2329 ppc64_elf_object_p (abfd
)
2332 if (abfd
->arch_info
->the_default
&& abfd
->arch_info
->bits_per_word
== 32)
2334 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2336 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS64
)
2338 /* Relies on arch after 32 bit default being 64 bit default. */
2339 abfd
->arch_info
= abfd
->arch_info
->next
;
2340 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 64);
2346 /* Merge backend specific data from an object file to the output
2347 object file when linking. */
2350 ppc64_elf_merge_private_bfd_data (ibfd
, obfd
)
2354 /* Check if we have the same endianess. */
2355 if (ibfd
->xvec
->byteorder
!= obfd
->xvec
->byteorder
2356 && ibfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
2357 && obfd
->xvec
->byteorder
!= BFD_ENDIAN_UNKNOWN
)
2361 if (bfd_big_endian (ibfd
))
2362 msg
= _("%s: compiled for a big endian system and target is little endian");
2364 msg
= _("%s: compiled for a little endian system and target is big endian");
2366 (*_bfd_error_handler
) (msg
, bfd_archive_filename (ibfd
));
2368 bfd_set_error (bfd_error_wrong_format
);
2375 struct _ppc64_elf_section_data
2377 struct bfd_elf_section_data elf
;
2379 /* An array with one entry for each opd function descriptor. */
2382 /* Points to the function code section for local opd entries. */
2383 asection
**func_sec
;
2384 /* After editing .opd, adjust references to opd local syms. */
2388 /* An array for toc sections, indexed by offset/8.
2389 Specifies the relocation symbol index used at a given toc offset. */
2393 #define ppc64_elf_section_data(sec) \
2394 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2397 ppc64_elf_new_section_hook (abfd
, sec
)
2401 struct _ppc64_elf_section_data
*sdata
;
2402 bfd_size_type amt
= sizeof (*sdata
);
2404 sdata
= (struct _ppc64_elf_section_data
*) bfd_zalloc (abfd
, amt
);
2407 sec
->used_by_bfd
= (PTR
) sdata
;
2409 return _bfd_elf_new_section_hook (abfd
, sec
);
2412 /* The following functions are specific to the ELF linker, while
2413 functions above are used generally. Those named ppc64_elf_* are
2414 called by the main ELF linker code. They appear in this file more
2415 or less in the order in which they are called. eg.
2416 ppc64_elf_check_relocs is called early in the link process,
2417 ppc64_elf_finish_dynamic_sections is one of the last functions
2420 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2421 functions have both a function code symbol and a function descriptor
2422 symbol. A call to foo in a relocatable object file looks like:
2429 The function definition in another object file might be:
2433 . .quad .TOC.@tocbase
2439 When the linker resolves the call during a static link, the branch
2440 unsurprisingly just goes to .foo and the .opd information is unused.
2441 If the function definition is in a shared library, things are a little
2442 different: The call goes via a plt call stub, the opd information gets
2443 copied to the plt, and the linker patches the nop.
2451 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
2452 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
2453 . std 2,40(1) # this is the general idea
2461 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2463 The "reloc ()" notation is supposed to indicate that the linker emits
2464 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2467 What are the difficulties here? Well, firstly, the relocations
2468 examined by the linker in check_relocs are against the function code
2469 sym .foo, while the dynamic relocation in the plt is emitted against
2470 the function descriptor symbol, foo. Somewhere along the line, we need
2471 to carefully copy dynamic link information from one symbol to the other.
2472 Secondly, the generic part of the elf linker will make .foo a dynamic
2473 symbol as is normal for most other backends. We need foo dynamic
2474 instead, at least for an application final link. However, when
2475 creating a shared library containing foo, we need to have both symbols
2476 dynamic so that references to .foo are satisfied during the early
2477 stages of linking. Otherwise the linker might decide to pull in a
2478 definition from some other object, eg. a static library. */
2480 /* The linker needs to keep track of the number of relocs that it
2481 decides to copy as dynamic relocs in check_relocs for each symbol.
2482 This is so that it can later discard them if they are found to be
2483 unnecessary. We store the information in a field extending the
2484 regular ELF linker hash table. */
2486 struct ppc_dyn_relocs
2488 struct ppc_dyn_relocs
*next
;
2490 /* The input section of the reloc. */
2493 /* Total number of relocs copied for the input section. */
2494 bfd_size_type count
;
2496 /* Number of pc-relative relocs copied for the input section. */
2497 bfd_size_type pc_count
;
2500 /* Track GOT entries needed for a given symbol. We might need more
2501 than one got entry per symbol. */
2504 struct got_entry
*next
;
2510 bfd_signed_vma refcount
;
2517 /* The same for PLT. */
2520 struct plt_entry
*next
;
2526 bfd_signed_vma refcount
;
2531 /* Of those relocs that might be copied as dynamic relocs, this macro
2532 selects those that must be copied when linking a shared library. */
2534 #define MUST_BE_DYN_RELOC(RTYPE) \
2535 ((RTYPE) != R_PPC64_REL32 \
2536 && (RTYPE) != R_PPC64_REL64 \
2537 && (RTYPE) != R_PPC64_REL30)
2539 /* Section name for stubs is the associated section name plus this
2541 #define STUB_SUFFIX ".stub"
2544 ppc_stub_long_branch:
2545 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2546 destination, but a 24 bit branch in a stub section will reach.
2549 ppc_stub_plt_branch:
2550 Similar to the above, but a 24 bit branch in the stub section won't
2551 reach its destination.
2552 . addis %r12,%r2,xxx@toc@ha
2553 . ld %r11,xxx@toc@l(%r12)
2558 Used to call a function in a shared library.
2559 . addis %r12,%r2,xxx@toc@ha
2561 . ld %r11,xxx+0@toc@l(%r12)
2562 . ld %r2,xxx+8@toc@l(%r12)
2564 . ld %r11,xxx+16@toc@l(%r12)
2568 enum ppc_stub_type
{
2570 ppc_stub_long_branch
,
2571 ppc_stub_plt_branch
,
2575 struct ppc_stub_hash_entry
{
2577 /* Base hash table entry structure. */
2578 struct bfd_hash_entry root
;
2580 /* The stub section. */
2583 /* Offset within stub_sec of the beginning of this stub. */
2584 bfd_vma stub_offset
;
2586 /* Given the symbol's value and its section we can determine its final
2587 value when building the stubs (so the stub knows where to jump. */
2588 bfd_vma target_value
;
2589 asection
*target_section
;
2591 enum ppc_stub_type stub_type
;
2593 /* The symbol table entry, if any, that this was derived from. */
2594 struct ppc_link_hash_entry
*h
;
2596 /* And the reloc addend that this was derived from. */
2599 /* Where this stub is being called from, or, in the case of combined
2600 stub sections, the first input section in the group. */
2604 struct ppc_branch_hash_entry
{
2606 /* Base hash table entry structure. */
2607 struct bfd_hash_entry root
;
2609 /* Offset within .branch_lt. */
2610 unsigned int offset
;
2612 /* Generation marker. */
2616 struct ppc_link_hash_entry
2618 struct elf_link_hash_entry elf
;
2620 /* A pointer to the most recently used stub hash entry against this
2622 struct ppc_stub_hash_entry
*stub_cache
;
2624 /* Track dynamic relocs copied for this symbol. */
2625 struct ppc_dyn_relocs
*dyn_relocs
;
2627 /* Link between function code and descriptor symbols. */
2628 struct elf_link_hash_entry
*oh
;
2630 /* Flag function code and descriptor symbols. */
2631 unsigned int is_func
:1;
2632 unsigned int is_func_descriptor
:1;
2633 unsigned int is_entry
:1;
2635 /* Contexts in which symbol is used in the GOT (or TOC).
2636 Linker optimization will result in various transformations. */
2637 #define TLS_TLS 1 /* Any TLS reloc. */
2638 #define TLS_GD_LD 2 /* GD or LD reloc requiring 2 got slots. */
2639 #define TLS_LD 4 /* LD reloc. */
2640 #define TLS_TPREL 8 /* TPREL reloc, => IE. */
2641 #define TLS_DTPREL 16 /* DTPREL reloc, => LD. */
2642 #define TLS_EXPLICIT 32 /* Marks TOC section relocs. */
2646 /* ppc64 ELF linker hash table. */
2648 struct ppc_link_hash_table
2650 struct elf_link_hash_table elf
;
2652 /* The stub hash table. */
2653 struct bfd_hash_table stub_hash_table
;
2655 /* Another hash table for plt_branch stubs. */
2656 struct bfd_hash_table branch_hash_table
;
2658 /* Linker stub bfd. */
2661 /* Linker call-backs. */
2662 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
2663 void (*layout_sections_again
) PARAMS ((void));
2665 /* Array to keep track of which stub sections have been created, and
2666 information on stub grouping. */
2668 /* This is the section to which stubs in the group will be attached. */
2670 /* The stub section. */
2674 /* Assorted information used by ppc64_elf_size_stubs. */
2676 asection
**input_list
;
2678 /* Short-cuts to get to dynamic linker sections. */
2690 /* Short-cut to first output tls section. */
2693 /* Shortcut to .__tls_get_addr. */
2694 struct elf_link_hash_entry
*tls_get_addr
;
2696 /* TLS local dynamic got entry handling. */
2698 bfd_signed_vma refcount
;
2703 unsigned int stub_error
;
2705 /* Flag set when small branches are detected. Used to
2706 select suitable defaults for the stub group size. */
2707 unsigned int has_14bit_branch
;
2709 /* Set if we detect a reference undefined weak symbol. */
2710 unsigned int have_undefweak
;
2712 /* Incremented every time we size stubs. */
2713 unsigned int stub_iteration
;
2715 /* Small local sym to section mapping cache. */
2716 struct sym_sec_cache sym_sec
;
2719 static struct bfd_hash_entry
*stub_hash_newfunc
2720 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2721 static struct bfd_hash_entry
*branch_hash_newfunc
2722 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2723 static struct bfd_hash_entry
*link_hash_newfunc
2724 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2725 static struct bfd_link_hash_table
*ppc64_elf_link_hash_table_create
2727 static void ppc64_elf_link_hash_table_free
2728 PARAMS ((struct bfd_link_hash_table
*));
2729 static char *ppc_stub_name
2730 PARAMS ((const asection
*, const asection
*,
2731 const struct ppc_link_hash_entry
*, const Elf_Internal_Rela
*));
2732 static struct ppc_stub_hash_entry
*ppc_get_stub_entry
2733 PARAMS ((const asection
*, const asection
*, struct elf_link_hash_entry
*,
2734 const Elf_Internal_Rela
*, struct ppc_link_hash_table
*));
2735 static struct ppc_stub_hash_entry
*ppc_add_stub
2736 PARAMS ((const char *, asection
*, struct ppc_link_hash_table
*));
2737 static bfd_boolean create_linkage_sections
2738 PARAMS ((bfd
*, struct bfd_link_info
*));
2739 static bfd_boolean create_got_section
2740 PARAMS ((bfd
*, struct bfd_link_info
*));
2741 static bfd_boolean ppc64_elf_create_dynamic_sections
2742 PARAMS ((bfd
*, struct bfd_link_info
*));
2743 static void ppc64_elf_copy_indirect_symbol
2744 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
2745 struct elf_link_hash_entry
*));
2746 static bfd_boolean update_local_sym_info
2747 PARAMS ((bfd
*, Elf_Internal_Shdr
*, unsigned long, bfd_vma
, int));
2748 static bfd_boolean update_plt_info
2749 PARAMS ((bfd
*, struct ppc_link_hash_entry
*, bfd_vma
));
2750 static bfd_boolean ppc64_elf_check_relocs
2751 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2752 const Elf_Internal_Rela
*));
2753 static asection
* ppc64_elf_gc_mark_hook
2754 PARAMS ((asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
2755 struct elf_link_hash_entry
*, Elf_Internal_Sym
*));
2756 static bfd_boolean ppc64_elf_gc_sweep_hook
2757 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2758 const Elf_Internal_Rela
*));
2759 static bfd_boolean func_desc_adjust
2760 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2761 static bfd_boolean ppc64_elf_func_desc_adjust
2762 PARAMS ((bfd
*, struct bfd_link_info
*));
2763 static bfd_boolean ppc64_elf_adjust_dynamic_symbol
2764 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*));
2765 static void ppc64_elf_hide_symbol
2766 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
2767 static bfd_boolean get_sym_h
2768 PARAMS ((struct elf_link_hash_entry
**, Elf_Internal_Sym
**, asection
**,
2769 char **, Elf_Internal_Sym
**, unsigned long, bfd
*));
2770 static bfd_boolean get_tls_type
2771 PARAMS ((char **, Elf_Internal_Sym
**, const Elf_Internal_Rela
*, bfd
*));
2772 static bfd_boolean allocate_dynrelocs
2773 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2774 static bfd_boolean readonly_dynrelocs
2775 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2776 static enum elf_reloc_type_class ppc64_elf_reloc_type_class
2777 PARAMS ((const Elf_Internal_Rela
*));
2778 static bfd_boolean ppc64_elf_size_dynamic_sections
2779 PARAMS ((bfd
*, struct bfd_link_info
*));
2780 static enum ppc_stub_type ppc_type_of_stub
2781 PARAMS ((asection
*, const Elf_Internal_Rela
*,
2782 struct ppc_link_hash_entry
**, bfd_vma
));
2783 static bfd_byte
*build_plt_stub
2784 PARAMS ((bfd
*, bfd_byte
*, int, int));
2785 static bfd_boolean ppc_build_one_stub
2786 PARAMS ((struct bfd_hash_entry
*, PTR
));
2787 static bfd_boolean ppc_size_one_stub
2788 PARAMS ((struct bfd_hash_entry
*, PTR
));
2789 static void group_sections
2790 PARAMS ((struct ppc_link_hash_table
*, bfd_size_type
, bfd_boolean
));
2791 static bfd_boolean ppc64_elf_relocate_section
2792 PARAMS ((bfd
*, struct bfd_link_info
*info
, bfd
*, asection
*, bfd_byte
*,
2793 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
2795 static bfd_boolean ppc64_elf_finish_dynamic_symbol
2796 PARAMS ((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
2797 Elf_Internal_Sym
*));
2798 static bfd_boolean ppc64_elf_finish_dynamic_sections
2799 PARAMS ((bfd
*, struct bfd_link_info
*));
2801 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2803 #define ppc_hash_table(p) \
2804 ((struct ppc_link_hash_table *) ((p)->hash))
2806 #define ppc_stub_hash_lookup(table, string, create, copy) \
2807 ((struct ppc_stub_hash_entry *) \
2808 bfd_hash_lookup ((table), (string), (create), (copy)))
2810 #define ppc_branch_hash_lookup(table, string, create, copy) \
2811 ((struct ppc_branch_hash_entry *) \
2812 bfd_hash_lookup ((table), (string), (create), (copy)))
2814 /* Create an entry in the stub hash table. */
2816 static struct bfd_hash_entry
*
2817 stub_hash_newfunc (entry
, table
, string
)
2818 struct bfd_hash_entry
*entry
;
2819 struct bfd_hash_table
*table
;
2822 /* Allocate the structure if it has not already been allocated by a
2826 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_stub_hash_entry
));
2831 /* Call the allocation method of the superclass. */
2832 entry
= bfd_hash_newfunc (entry
, table
, string
);
2835 struct ppc_stub_hash_entry
*eh
;
2837 /* Initialize the local fields. */
2838 eh
= (struct ppc_stub_hash_entry
*) entry
;
2839 eh
->stub_sec
= NULL
;
2840 eh
->stub_offset
= 0;
2841 eh
->target_value
= 0;
2842 eh
->target_section
= NULL
;
2843 eh
->stub_type
= ppc_stub_none
;
2851 /* Create an entry in the branch hash table. */
2853 static struct bfd_hash_entry
*
2854 branch_hash_newfunc (entry
, table
, string
)
2855 struct bfd_hash_entry
*entry
;
2856 struct bfd_hash_table
*table
;
2859 /* Allocate the structure if it has not already been allocated by a
2863 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_branch_hash_entry
));
2868 /* Call the allocation method of the superclass. */
2869 entry
= bfd_hash_newfunc (entry
, table
, string
);
2872 struct ppc_branch_hash_entry
*eh
;
2874 /* Initialize the local fields. */
2875 eh
= (struct ppc_branch_hash_entry
*) entry
;
2883 /* Create an entry in a ppc64 ELF linker hash table. */
2885 static struct bfd_hash_entry
*
2886 link_hash_newfunc (entry
, table
, string
)
2887 struct bfd_hash_entry
*entry
;
2888 struct bfd_hash_table
*table
;
2891 /* Allocate the structure if it has not already been allocated by a
2895 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_link_hash_entry
));
2900 /* Call the allocation method of the superclass. */
2901 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
2904 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) entry
;
2906 eh
->stub_cache
= NULL
;
2907 eh
->dyn_relocs
= NULL
;
2910 eh
->is_func_descriptor
= 0;
2918 /* Create a ppc64 ELF linker hash table. */
2920 static struct bfd_link_hash_table
*
2921 ppc64_elf_link_hash_table_create (abfd
)
2924 struct ppc_link_hash_table
*htab
;
2925 bfd_size_type amt
= sizeof (struct ppc_link_hash_table
);
2927 htab
= (struct ppc_link_hash_table
*) bfd_malloc (amt
);
2931 if (! _bfd_elf_link_hash_table_init (&htab
->elf
, abfd
, link_hash_newfunc
))
2937 /* Init the stub hash table too. */
2938 if (!bfd_hash_table_init (&htab
->stub_hash_table
, stub_hash_newfunc
))
2941 /* And the branch hash table. */
2942 if (!bfd_hash_table_init (&htab
->branch_hash_table
, branch_hash_newfunc
))
2945 htab
->stub_bfd
= NULL
;
2946 htab
->add_stub_section
= NULL
;
2947 htab
->layout_sections_again
= NULL
;
2948 htab
->stub_group
= NULL
;
2950 htab
->srelgot
= NULL
;
2952 htab
->srelplt
= NULL
;
2953 htab
->sdynbss
= NULL
;
2954 htab
->srelbss
= NULL
;
2955 htab
->sglink
= NULL
;
2958 htab
->srelbrlt
= NULL
;
2959 htab
->tls_sec
= NULL
;
2960 htab
->tlsld_got
.refcount
= 0;
2961 htab
->stub_error
= 0;
2962 htab
->has_14bit_branch
= 0;
2963 htab
->have_undefweak
= 0;
2964 htab
->stub_iteration
= 0;
2965 htab
->sym_sec
.abfd
= NULL
;
2966 htab
->elf
.init_refcount
.glist
= NULL
;
2967 htab
->elf
.init_offset
.glist
= NULL
;
2969 return &htab
->elf
.root
;
2972 /* Free the derived linker hash table. */
2975 ppc64_elf_link_hash_table_free (hash
)
2976 struct bfd_link_hash_table
*hash
;
2978 struct ppc_link_hash_table
*ret
= (struct ppc_link_hash_table
*) hash
;
2980 bfd_hash_table_free (&ret
->stub_hash_table
);
2981 bfd_hash_table_free (&ret
->branch_hash_table
);
2982 _bfd_generic_link_hash_table_free (hash
);
2985 /* Build a name for an entry in the stub hash table. */
2988 ppc_stub_name (input_section
, sym_sec
, h
, rel
)
2989 const asection
*input_section
;
2990 const asection
*sym_sec
;
2991 const struct ppc_link_hash_entry
*h
;
2992 const Elf_Internal_Rela
*rel
;
2997 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
2998 offsets from a sym as a branch target? In fact, we could
2999 probably assume the addend is always zero. */
3000 BFD_ASSERT (((int) rel
->r_addend
& 0xffffffff) == rel
->r_addend
);
3004 len
= 8 + 1 + strlen (h
->elf
.root
.root
.string
) + 1 + 8 + 1;
3005 stub_name
= bfd_malloc (len
);
3006 if (stub_name
!= NULL
)
3008 sprintf (stub_name
, "%08x_%s+%x",
3009 input_section
->id
& 0xffffffff,
3010 h
->elf
.root
.root
.string
,
3011 (int) rel
->r_addend
& 0xffffffff);
3016 len
= 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
3017 stub_name
= bfd_malloc (len
);
3018 if (stub_name
!= NULL
)
3020 sprintf (stub_name
, "%08x_%x:%x+%x",
3021 input_section
->id
& 0xffffffff,
3022 sym_sec
->id
& 0xffffffff,
3023 (int) ELF64_R_SYM (rel
->r_info
) & 0xffffffff,
3024 (int) rel
->r_addend
& 0xffffffff);
3030 /* Look up an entry in the stub hash. Stub entries are cached because
3031 creating the stub name takes a bit of time. */
3033 static struct ppc_stub_hash_entry
*
3034 ppc_get_stub_entry (input_section
, sym_sec
, hash
, rel
, htab
)
3035 const asection
*input_section
;
3036 const asection
*sym_sec
;
3037 struct elf_link_hash_entry
*hash
;
3038 const Elf_Internal_Rela
*rel
;
3039 struct ppc_link_hash_table
*htab
;
3041 struct ppc_stub_hash_entry
*stub_entry
;
3042 struct ppc_link_hash_entry
*h
= (struct ppc_link_hash_entry
*) hash
;
3043 const asection
*id_sec
;
3045 /* If this input section is part of a group of sections sharing one
3046 stub section, then use the id of the first section in the group.
3047 Stub names need to include a section id, as there may well be
3048 more than one stub used to reach say, printf, and we need to
3049 distinguish between them. */
3050 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
3052 if (h
!= NULL
&& h
->stub_cache
!= NULL
3053 && h
->stub_cache
->h
== h
3054 && h
->stub_cache
->id_sec
== id_sec
)
3056 stub_entry
= h
->stub_cache
;
3062 stub_name
= ppc_stub_name (id_sec
, sym_sec
, h
, rel
);
3063 if (stub_name
== NULL
)
3066 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
3067 stub_name
, FALSE
, FALSE
);
3069 h
->stub_cache
= stub_entry
;
3077 /* Add a new stub entry to the stub hash. Not all fields of the new
3078 stub entry are initialised. */
3080 static struct ppc_stub_hash_entry
*
3081 ppc_add_stub (stub_name
, section
, htab
)
3082 const char *stub_name
;
3084 struct ppc_link_hash_table
*htab
;
3088 struct ppc_stub_hash_entry
*stub_entry
;
3090 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
3091 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
3092 if (stub_sec
== NULL
)
3094 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
3095 if (stub_sec
== NULL
)
3101 namelen
= strlen (link_sec
->name
);
3102 len
= namelen
+ sizeof (STUB_SUFFIX
);
3103 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
3107 memcpy (s_name
, link_sec
->name
, namelen
);
3108 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
3109 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
3110 if (stub_sec
== NULL
)
3112 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
3114 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
3117 /* Enter this entry into the linker stub hash table. */
3118 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
, stub_name
,
3120 if (stub_entry
== NULL
)
3122 (*_bfd_error_handler
) (_("%s: cannot create stub entry %s"),
3123 bfd_archive_filename (section
->owner
),
3128 stub_entry
->stub_sec
= stub_sec
;
3129 stub_entry
->stub_offset
= 0;
3130 stub_entry
->id_sec
= link_sec
;
3134 /* Create sections for linker generated code. */
3137 create_linkage_sections (dynobj
, info
)
3139 struct bfd_link_info
*info
;
3141 struct ppc_link_hash_table
*htab
;
3144 htab
= ppc_hash_table (info
);
3146 /* Create .sfpr for code to save and restore fp regs. */
3147 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
3148 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3149 htab
->sfpr
= bfd_make_section_anyway (dynobj
, ".sfpr");
3150 if (htab
->sfpr
== NULL
3151 || ! bfd_set_section_flags (dynobj
, htab
->sfpr
, flags
)
3152 || ! bfd_set_section_alignment (dynobj
, htab
->sfpr
, 2))
3155 /* Create .glink for lazy dynamic linking support. */
3156 htab
->sglink
= bfd_make_section_anyway (dynobj
, ".glink");
3157 if (htab
->sglink
== NULL
3158 || ! bfd_set_section_flags (dynobj
, htab
->sglink
, flags
)
3159 || ! bfd_set_section_alignment (dynobj
, htab
->sglink
, 2))
3162 /* Create .branch_lt for plt_branch stubs. */
3163 flags
= (SEC_ALLOC
| SEC_LOAD
3164 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3165 htab
->sbrlt
= bfd_make_section_anyway (dynobj
, ".branch_lt");
3166 if (htab
->sbrlt
== NULL
3167 || ! bfd_set_section_flags (dynobj
, htab
->sbrlt
, flags
)
3168 || ! bfd_set_section_alignment (dynobj
, htab
->sbrlt
, 3))
3173 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
3174 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3175 htab
->srelbrlt
= bfd_make_section_anyway (dynobj
, ".rela.branch_lt");
3177 || ! bfd_set_section_flags (dynobj
, htab
->srelbrlt
, flags
)
3178 || ! bfd_set_section_alignment (dynobj
, htab
->srelbrlt
, 3))
3184 /* Create .got and .rela.got sections in DYNOBJ, and set up
3185 shortcuts to them in our hash table. */
3188 create_got_section (dynobj
, info
)
3190 struct bfd_link_info
*info
;
3192 struct ppc_link_hash_table
*htab
;
3194 if (! _bfd_elf_create_got_section (dynobj
, info
))
3197 htab
= ppc_hash_table (info
);
3198 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3202 htab
->srelgot
= bfd_make_section (dynobj
, ".rela.got");
3204 || ! bfd_set_section_flags (dynobj
, htab
->srelgot
,
3205 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3206 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3208 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
, 3))
3213 /* Create the dynamic sections, and set up shortcuts. */
3216 ppc64_elf_create_dynamic_sections (dynobj
, info
)
3218 struct bfd_link_info
*info
;
3220 struct ppc_link_hash_table
*htab
;
3222 htab
= ppc_hash_table (info
);
3223 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
3226 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
3229 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
3230 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3231 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
3233 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3235 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
3236 || (!info
->shared
&& !htab
->srelbss
))
3242 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3245 ppc64_elf_copy_indirect_symbol (bed
, dir
, ind
)
3246 struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
3247 struct elf_link_hash_entry
*dir
, *ind
;
3249 struct ppc_link_hash_entry
*edir
, *eind
;
3251 edir
= (struct ppc_link_hash_entry
*) dir
;
3252 eind
= (struct ppc_link_hash_entry
*) ind
;
3254 /* Copy over any dynamic relocs we may have on the indirect sym. */
3255 if (eind
->dyn_relocs
!= NULL
)
3257 if (edir
->dyn_relocs
!= NULL
)
3259 struct ppc_dyn_relocs
**pp
;
3260 struct ppc_dyn_relocs
*p
;
3262 if (eind
->elf
.root
.type
== bfd_link_hash_indirect
)
3265 /* Add reloc counts against the weak sym to the strong sym
3266 list. Merge any entries against the same section. */
3267 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3269 struct ppc_dyn_relocs
*q
;
3271 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3272 if (q
->sec
== p
->sec
)
3274 q
->pc_count
+= p
->pc_count
;
3275 q
->count
+= p
->count
;
3282 *pp
= edir
->dyn_relocs
;
3285 edir
->dyn_relocs
= eind
->dyn_relocs
;
3286 eind
->dyn_relocs
= NULL
;
3289 edir
->is_func
|= eind
->is_func
;
3290 edir
->is_func_descriptor
|= eind
->is_func_descriptor
;
3291 edir
->is_entry
|= eind
->is_entry
;
3293 /* Copy down any references that we may have already seen to the
3294 symbol which just became indirect. */
3295 edir
->elf
.elf_link_hash_flags
|=
3296 (eind
->elf
.elf_link_hash_flags
3297 & (ELF_LINK_HASH_REF_DYNAMIC
3298 | ELF_LINK_HASH_REF_REGULAR
3299 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
3300 | ELF_LINK_NON_GOT_REF
));
3302 /* If we were called to copy over info for a weak sym, that's all. */
3303 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3306 /* Copy over got entries. */
3307 if (eind
->elf
.got
.glist
!= NULL
)
3309 if (edir
->elf
.got
.glist
!= NULL
)
3311 struct got_entry
**entp
;
3312 struct got_entry
*ent
;
3314 for (entp
= &eind
->elf
.got
.glist
; (ent
= *entp
) != NULL
; )
3316 struct got_entry
*dent
;
3318 for (dent
= edir
->elf
.got
.glist
; dent
!= NULL
; dent
= dent
->next
)
3319 if (dent
->addend
== ent
->addend
3320 && dent
->tls_type
== ent
->tls_type
)
3322 dent
->got
.refcount
+= ent
->got
.refcount
;
3329 *entp
= edir
->elf
.got
.glist
;
3332 edir
->elf
.got
.glist
= eind
->elf
.got
.glist
;
3333 eind
->elf
.got
.glist
= NULL
;
3336 /* And plt entries. */
3337 if (eind
->elf
.plt
.plist
!= NULL
)
3339 if (edir
->elf
.plt
.plist
!= NULL
)
3341 struct plt_entry
**entp
;
3342 struct plt_entry
*ent
;
3344 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3346 struct plt_entry
*dent
;
3348 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3349 if (dent
->addend
== ent
->addend
)
3351 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3358 *entp
= edir
->elf
.plt
.plist
;
3361 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3362 eind
->elf
.plt
.plist
= NULL
;
3365 if (edir
->elf
.dynindx
== -1)
3367 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3368 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3369 eind
->elf
.dynindx
= -1;
3370 eind
->elf
.dynstr_index
= 0;
3373 BFD_ASSERT (eind
->elf
.dynindx
== -1);
3376 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3377 symbols undefined on the command-line. */
3380 ppc64_elf_mark_entry_syms (info
)
3381 struct bfd_link_info
*info
;
3383 struct ppc_link_hash_table
*htab
;
3384 struct bfd_sym_chain
*sym
;
3386 htab
= ppc_hash_table (info
);
3387 for (sym
= info
->gc_sym_list
; sym
; sym
= sym
->next
)
3389 struct elf_link_hash_entry
*h
;
3391 h
= elf_link_hash_lookup (&htab
->elf
, sym
->name
, FALSE
, FALSE
, FALSE
);
3393 ((struct ppc_link_hash_entry
*) h
)->is_entry
= 1;
3399 update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, r_addend
, tls_type
)
3401 Elf_Internal_Shdr
*symtab_hdr
;
3402 unsigned long r_symndx
;
3406 struct got_entry
**local_got_ents
= elf_local_got_ents (abfd
);
3407 char *local_got_tls_types
;
3409 if (local_got_ents
== NULL
)
3411 bfd_size_type size
= symtab_hdr
->sh_info
;
3413 size
*= sizeof (*local_got_ents
) + sizeof (char);
3414 local_got_ents
= (struct got_entry
**) bfd_zalloc (abfd
, size
);
3415 if (local_got_ents
== NULL
)
3417 elf_local_got_ents (abfd
) = local_got_ents
;
3420 if ((tls_type
& TLS_EXPLICIT
) == 0)
3422 struct got_entry
*ent
;
3424 for (ent
= local_got_ents
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
3425 if (ent
->addend
== r_addend
&& ent
->tls_type
== tls_type
)
3429 bfd_size_type amt
= sizeof (*ent
);
3430 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3433 ent
->next
= local_got_ents
[r_symndx
];
3434 ent
->addend
= r_addend
;
3435 ent
->tls_type
= tls_type
;
3436 ent
->got
.refcount
= 0;
3437 local_got_ents
[r_symndx
] = ent
;
3439 ent
->got
.refcount
+= 1;
3442 local_got_tls_types
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
3443 local_got_tls_types
[r_symndx
] |= tls_type
;
3448 update_plt_info (abfd
, eh
, addend
)
3450 struct ppc_link_hash_entry
*eh
;
3453 struct plt_entry
*ent
;
3455 for (ent
= eh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
3456 if (ent
->addend
== addend
)
3460 bfd_size_type amt
= sizeof (*ent
);
3461 ent
= (struct plt_entry
*) bfd_alloc (abfd
, amt
);
3464 ent
->next
= eh
->elf
.plt
.plist
;
3465 ent
->addend
= addend
;
3466 ent
->plt
.refcount
= 0;
3467 eh
->elf
.plt
.plist
= ent
;
3469 ent
->plt
.refcount
+= 1;
3470 eh
->elf
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
3475 /* Look through the relocs for a section during the first phase, and
3476 calculate needed space in the global offset table, procedure
3477 linkage table, and dynamic reloc sections. */
3480 ppc64_elf_check_relocs (abfd
, info
, sec
, relocs
)
3482 struct bfd_link_info
*info
;
3484 const Elf_Internal_Rela
*relocs
;
3486 struct ppc_link_hash_table
*htab
;
3487 Elf_Internal_Shdr
*symtab_hdr
;
3488 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
3489 const Elf_Internal_Rela
*rel
;
3490 const Elf_Internal_Rela
*rel_end
;
3492 asection
**opd_sym_map
;
3494 if (info
->relocateable
)
3497 htab
= ppc_hash_table (info
);
3498 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3500 sym_hashes
= elf_sym_hashes (abfd
);
3501 sym_hashes_end
= (sym_hashes
3502 + symtab_hdr
->sh_size
/ sizeof (Elf64_External_Sym
)
3503 - symtab_hdr
->sh_info
);
3507 if (strcmp (bfd_get_section_name (abfd
, sec
), ".opd") == 0)
3509 /* Garbage collection needs some extra help with .opd sections.
3510 We don't want to necessarily keep everything referenced by
3511 relocs in .opd, as that would keep all functions. Instead,
3512 if we reference an .opd symbol (a function descriptor), we
3513 want to keep the function code symbol's section. This is
3514 easy for global symbols, but for local syms we need to keep
3515 information about the associated function section. Later, if
3516 edit_opd deletes entries, we'll use this array to adjust
3517 local syms in .opd. */
3519 asection
*func_section
;
3524 amt
= sec
->_raw_size
* sizeof (union opd_info
) / 24;
3525 opd_sym_map
= (asection
**) bfd_zalloc (abfd
, amt
);
3526 if (opd_sym_map
== NULL
)
3528 ppc64_elf_section_data (sec
)->opd
.func_sec
= opd_sym_map
;
3531 if (htab
->elf
.dynobj
== NULL
)
3532 htab
->elf
.dynobj
= abfd
;
3533 if (htab
->sfpr
== NULL
3534 && !create_linkage_sections (htab
->elf
.dynobj
, info
))
3537 rel_end
= relocs
+ sec
->reloc_count
;
3538 for (rel
= relocs
; rel
< rel_end
; rel
++)
3540 unsigned long r_symndx
;
3541 struct elf_link_hash_entry
*h
;
3542 enum elf_ppc64_reloc_type r_type
;
3545 r_symndx
= ELF64_R_SYM (rel
->r_info
);
3546 if (r_symndx
< symtab_hdr
->sh_info
)
3549 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3551 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
3554 case R_PPC64_GOT_TLSLD16
:
3555 case R_PPC64_GOT_TLSLD16_LO
:
3556 case R_PPC64_GOT_TLSLD16_HI
:
3557 case R_PPC64_GOT_TLSLD16_HA
:
3558 htab
->tlsld_got
.refcount
+= 1;
3559 tls_type
= TLS_TLS
| TLS_GD_LD
| TLS_LD
;
3562 case R_PPC64_GOT_TLSGD16
:
3563 case R_PPC64_GOT_TLSGD16_LO
:
3564 case R_PPC64_GOT_TLSGD16_HI
:
3565 case R_PPC64_GOT_TLSGD16_HA
:
3566 tls_type
= TLS_TLS
| TLS_GD_LD
;
3569 case R_PPC64_GOT_TPREL16_DS
:
3570 case R_PPC64_GOT_TPREL16_LO_DS
:
3571 case R_PPC64_GOT_TPREL16_HI
:
3572 case R_PPC64_GOT_TPREL16_HA
:
3574 info
->flags
|= DF_STATIC_TLS
;
3575 tls_type
= TLS_TLS
| TLS_TPREL
;
3578 case R_PPC64_GOT_DTPREL16_DS
:
3579 case R_PPC64_GOT_DTPREL16_LO_DS
:
3580 case R_PPC64_GOT_DTPREL16_HI
:
3581 case R_PPC64_GOT_DTPREL16_HA
:
3582 tls_type
= TLS_TLS
| TLS_DTPREL
;
3584 sec
->has_tls_reloc
= 1;
3588 case R_PPC64_GOT16_DS
:
3589 case R_PPC64_GOT16_HA
:
3590 case R_PPC64_GOT16_HI
:
3591 case R_PPC64_GOT16_LO
:
3592 case R_PPC64_GOT16_LO_DS
:
3593 /* This symbol requires a global offset table entry. */
3594 if (htab
->sgot
== NULL
3595 && !create_got_section (htab
->elf
.dynobj
, info
))
3600 struct ppc_link_hash_entry
*eh
;
3601 struct got_entry
*ent
;
3603 eh
= (struct ppc_link_hash_entry
*) h
;
3604 for (ent
= eh
->elf
.got
.glist
; ent
!= NULL
; ent
= ent
->next
)
3605 if (ent
->addend
== rel
->r_addend
3606 && ent
->tls_type
== tls_type
)
3610 bfd_size_type amt
= sizeof (*ent
);
3611 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3614 ent
->next
= eh
->elf
.got
.glist
;
3615 ent
->addend
= rel
->r_addend
;
3616 ent
->tls_type
= tls_type
;
3617 ent
->got
.refcount
= 0;
3618 eh
->elf
.got
.glist
= ent
;
3620 ent
->got
.refcount
+= 1;
3621 eh
->tls_type
|= tls_type
;
3624 /* This is a global offset table entry for a local symbol. */
3625 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3626 rel
->r_addend
, tls_type
))
3630 case R_PPC64_PLT16_HA
:
3631 case R_PPC64_PLT16_HI
:
3632 case R_PPC64_PLT16_LO
:
3635 /* This symbol requires a procedure linkage table entry. We
3636 actually build the entry in adjust_dynamic_symbol,
3637 because this might be a case of linking PIC code without
3638 linking in any dynamic objects, in which case we don't
3639 need to generate a procedure linkage table after all. */
3642 /* It does not make sense to have a procedure linkage
3643 table entry for a local symbol. */
3644 bfd_set_error (bfd_error_bad_value
);
3648 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3653 /* The following relocations don't need to propagate the
3654 relocation if linking a shared object since they are
3655 section relative. */
3656 case R_PPC64_SECTOFF
:
3657 case R_PPC64_SECTOFF_LO
:
3658 case R_PPC64_SECTOFF_HI
:
3659 case R_PPC64_SECTOFF_HA
:
3660 case R_PPC64_SECTOFF_DS
:
3661 case R_PPC64_SECTOFF_LO_DS
:
3663 case R_PPC64_TOC16_LO
:
3664 case R_PPC64_TOC16_HI
:
3665 case R_PPC64_TOC16_HA
:
3666 case R_PPC64_TOC16_DS
:
3667 case R_PPC64_TOC16_LO_DS
:
3668 case R_PPC64_DTPREL16
:
3669 case R_PPC64_DTPREL16_LO
:
3670 case R_PPC64_DTPREL16_HI
:
3671 case R_PPC64_DTPREL16_HA
:
3672 case R_PPC64_DTPREL16_DS
:
3673 case R_PPC64_DTPREL16_LO_DS
:
3674 case R_PPC64_DTPREL16_HIGHER
:
3675 case R_PPC64_DTPREL16_HIGHERA
:
3676 case R_PPC64_DTPREL16_HIGHEST
:
3677 case R_PPC64_DTPREL16_HIGHESTA
:
3680 /* This relocation describes the C++ object vtable hierarchy.
3681 Reconstruct it for later use during GC. */
3682 case R_PPC64_GNU_VTINHERIT
:
3683 if (!_bfd_elf64_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3687 /* This relocation describes which C++ vtable entries are actually
3688 used. Record for later use during GC. */
3689 case R_PPC64_GNU_VTENTRY
:
3690 if (!_bfd_elf64_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3695 case R_PPC64_REL14_BRTAKEN
:
3696 case R_PPC64_REL14_BRNTAKEN
:
3697 htab
->has_14bit_branch
= 1;
3702 && h
->root
.root
.string
[0] == '.'
3703 && h
->root
.root
.string
[1] != 0)
3705 /* We may need a .plt entry if the function this reloc
3706 refers to is in a shared lib. */
3707 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3710 if (h
== htab
->tls_get_addr
)
3711 sec
->has_tls_reloc
= 1;
3712 else if (strcmp (h
->root
.root
.string
, ".__tls_get_addr") == 0)
3714 htab
->tls_get_addr
= h
;
3715 sec
->has_tls_reloc
= 1;
3720 case R_PPC64_TPREL64
:
3721 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
3723 info
->flags
|= DF_STATIC_TLS
;
3726 case R_PPC64_DTPMOD64
:
3727 if (rel
+ 1 < rel_end
3728 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
3729 && rel
[1].r_offset
== rel
->r_offset
+ 8)
3730 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD_LD
;
3732 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD_LD
| TLS_LD
;
3735 case R_PPC64_DTPREL64
:
3736 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
3738 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
3739 && rel
[-1].r_offset
== rel
->r_offset
- 8)
3740 /* This is the second reloc of a dtpmod, dtprel pair.
3741 Don't mark with TLS_DTPREL. */
3745 sec
->has_tls_reloc
= 1;
3748 struct ppc_link_hash_entry
*eh
;
3749 eh
= (struct ppc_link_hash_entry
*) h
;
3750 eh
->tls_type
|= tls_type
;
3753 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3754 rel
->r_addend
, tls_type
))
3757 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3759 bfd_size_type amt
= sec
->_raw_size
* sizeof (unsigned) / 8;
3760 ppc64_elf_section_data (sec
)->t_symndx
3761 = (unsigned *) bfd_zalloc (abfd
, amt
);
3762 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3765 BFD_ASSERT (rel
->r_offset
% 8 == 0);
3766 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8] = r_symndx
;
3769 case R_PPC64_TPREL16
:
3770 case R_PPC64_TPREL16_LO
:
3771 case R_PPC64_TPREL16_HI
:
3772 case R_PPC64_TPREL16_HA
:
3773 case R_PPC64_TPREL16_DS
:
3774 case R_PPC64_TPREL16_LO_DS
:
3775 case R_PPC64_TPREL16_HIGHER
:
3776 case R_PPC64_TPREL16_HIGHERA
:
3777 case R_PPC64_TPREL16_HIGHEST
:
3778 case R_PPC64_TPREL16_HIGHESTA
:
3781 info
->flags
|= DF_STATIC_TLS
;
3786 case R_PPC64_ADDR64
:
3787 if (opd_sym_map
!= NULL
3789 && h
->root
.root
.string
[0] == '.'
3790 && h
->root
.root
.string
[1] != 0)
3792 struct elf_link_hash_entry
*fdh
;
3794 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
3795 FALSE
, FALSE
, FALSE
);
3798 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
3799 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
3800 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
3801 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
3804 if (opd_sym_map
!= NULL
3806 && rel
+ 1 < rel_end
3807 && ((enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
)
3812 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
, sec
,
3817 opd_sym_map
[rel
->r_offset
/ 24] = s
;
3824 case R_PPC64_ADDR14
:
3825 case R_PPC64_ADDR14_BRNTAKEN
:
3826 case R_PPC64_ADDR14_BRTAKEN
:
3827 case R_PPC64_ADDR16
:
3828 case R_PPC64_ADDR16_DS
:
3829 case R_PPC64_ADDR16_HA
:
3830 case R_PPC64_ADDR16_HI
:
3831 case R_PPC64_ADDR16_HIGHER
:
3832 case R_PPC64_ADDR16_HIGHERA
:
3833 case R_PPC64_ADDR16_HIGHEST
:
3834 case R_PPC64_ADDR16_HIGHESTA
:
3835 case R_PPC64_ADDR16_LO
:
3836 case R_PPC64_ADDR16_LO_DS
:
3837 case R_PPC64_ADDR24
:
3838 case R_PPC64_ADDR32
:
3839 case R_PPC64_UADDR16
:
3840 case R_PPC64_UADDR32
:
3841 case R_PPC64_UADDR64
:
3843 /* Don't propagate .opd relocs. */
3844 if (NO_OPD_RELOCS
&& opd_sym_map
!= NULL
)
3847 /* If we are creating a shared library, and this is a reloc
3848 against a global symbol, or a non PC relative reloc
3849 against a local symbol, then we need to copy the reloc
3850 into the shared library. However, if we are linking with
3851 -Bsymbolic, we do not need to copy a reloc against a
3852 global symbol which is defined in an object we are
3853 including in the link (i.e., DEF_REGULAR is set). At
3854 this point we have not seen all the input files, so it is
3855 possible that DEF_REGULAR is not set now but will be set
3856 later (it is never cleared). In case of a weak definition,
3857 DEF_REGULAR may be cleared later by a strong definition in
3858 a shared library. We account for that possibility below by
3859 storing information in the relocs_copied field of the hash
3860 table entry. A similar situation occurs when creating
3861 shared libraries and symbol visibility changes render the
3864 If on the other hand, we are creating an executable, we
3865 may need to keep relocations for symbols satisfied by a
3866 dynamic library if we manage to avoid copy relocs for the
3870 && (sec
->flags
& SEC_ALLOC
) != 0
3871 && (MUST_BE_DYN_RELOC (r_type
)
3873 && (! info
->symbolic
3874 || h
->root
.type
== bfd_link_hash_defweak
3875 || (h
->elf_link_hash_flags
3876 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3878 && (sec
->flags
& SEC_ALLOC
) != 0
3880 && (h
->root
.type
== bfd_link_hash_defweak
3881 || (h
->elf_link_hash_flags
3882 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3884 struct ppc_dyn_relocs
*p
;
3885 struct ppc_dyn_relocs
**head
;
3887 /* We must copy these reloc types into the output file.
3888 Create a reloc section in dynobj and make room for
3895 name
= (bfd_elf_string_from_elf_section
3897 elf_elfheader (abfd
)->e_shstrndx
,
3898 elf_section_data (sec
)->rel_hdr
.sh_name
));
3902 if (strncmp (name
, ".rela", 5) != 0
3903 || strcmp (bfd_get_section_name (abfd
, sec
),
3906 (*_bfd_error_handler
)
3907 (_("%s: bad relocation section name `%s\'"),
3908 bfd_archive_filename (abfd
), name
);
3909 bfd_set_error (bfd_error_bad_value
);
3912 dynobj
= htab
->elf
.dynobj
;
3913 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3918 sreloc
= bfd_make_section (dynobj
, name
);
3919 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3920 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3921 if ((sec
->flags
& SEC_ALLOC
) != 0)
3922 flags
|= SEC_ALLOC
| SEC_LOAD
;
3924 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
3925 || ! bfd_set_section_alignment (dynobj
, sreloc
, 3))
3928 elf_section_data (sec
)->sreloc
= sreloc
;
3931 /* If this is a global symbol, we count the number of
3932 relocations we need for this symbol. */
3935 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
3939 /* Track dynamic relocs needed for local syms too.
3940 We really need local syms available to do this
3944 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
3949 head
= ((struct ppc_dyn_relocs
**)
3950 &elf_section_data (s
)->local_dynrel
);
3954 if (p
== NULL
|| p
->sec
!= sec
)
3956 p
= ((struct ppc_dyn_relocs
*)
3957 bfd_alloc (htab
->elf
.dynobj
,
3958 (bfd_size_type
) sizeof *p
));
3969 if (!MUST_BE_DYN_RELOC (r_type
))
3982 /* Return the section that should be marked against GC for a given
3986 ppc64_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
)
3988 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
3989 Elf_Internal_Rela
*rel
;
3990 struct elf_link_hash_entry
*h
;
3991 Elf_Internal_Sym
*sym
;
3993 asection
*rsec
= NULL
;
3997 enum elf_ppc64_reloc_type r_type
;
3998 struct ppc_link_hash_entry
*fdh
;
4000 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4003 case R_PPC64_GNU_VTINHERIT
:
4004 case R_PPC64_GNU_VTENTRY
:
4008 switch (h
->root
.type
)
4010 case bfd_link_hash_defined
:
4011 case bfd_link_hash_defweak
:
4012 fdh
= (struct ppc_link_hash_entry
*) h
;
4014 /* Function descriptor syms cause the associated
4015 function code sym section to be marked. */
4016 if (fdh
->is_func_descriptor
)
4017 rsec
= fdh
->oh
->root
.u
.def
.section
;
4019 /* Function entry syms return NULL if they are in .opd
4020 and are not ._start (or others undefined on the ld
4021 command line). Thus we avoid marking all function
4022 sections, as all functions are referenced in .opd. */
4023 else if ((fdh
->oh
!= NULL
4024 && ((struct ppc_link_hash_entry
*) fdh
->oh
)->is_entry
)
4025 || ppc64_elf_section_data (sec
)->opd
.func_sec
== NULL
)
4026 rsec
= h
->root
.u
.def
.section
;
4029 case bfd_link_hash_common
:
4030 rsec
= h
->root
.u
.c
.p
->section
;
4040 asection
**opd_sym_section
;
4042 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
4043 opd_sym_section
= ppc64_elf_section_data (rsec
)->opd
.func_sec
;
4044 if (opd_sym_section
!= NULL
)
4045 rsec
= opd_sym_section
[sym
->st_value
/ 24];
4046 else if (ppc64_elf_section_data (sec
)->opd
.func_sec
!= NULL
)
4053 /* Update the .got, .plt. and dynamic reloc reference counts for the
4054 section being removed. */
4057 ppc64_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
4059 struct bfd_link_info
*info
;
4061 const Elf_Internal_Rela
*relocs
;
4063 struct ppc_link_hash_table
*htab
;
4064 Elf_Internal_Shdr
*symtab_hdr
;
4065 struct elf_link_hash_entry
**sym_hashes
;
4066 struct got_entry
**local_got_ents
;
4067 const Elf_Internal_Rela
*rel
, *relend
;
4069 elf_section_data (sec
)->local_dynrel
= NULL
;
4071 htab
= ppc_hash_table (info
);
4072 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
4073 sym_hashes
= elf_sym_hashes (abfd
);
4074 local_got_ents
= elf_local_got_ents (abfd
);
4076 relend
= relocs
+ sec
->reloc_count
;
4077 for (rel
= relocs
; rel
< relend
; rel
++)
4079 unsigned long r_symndx
;
4080 enum elf_ppc64_reloc_type r_type
;
4081 struct elf_link_hash_entry
*h
;
4084 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4085 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4088 case R_PPC64_GOT_TLSLD16
:
4089 case R_PPC64_GOT_TLSLD16_LO
:
4090 case R_PPC64_GOT_TLSLD16_HI
:
4091 case R_PPC64_GOT_TLSLD16_HA
:
4092 htab
->tlsld_got
.refcount
-= 1;
4093 tls_type
= TLS_TLS
| TLS_GD_LD
| TLS_LD
;
4096 case R_PPC64_GOT_TLSGD16
:
4097 case R_PPC64_GOT_TLSGD16_LO
:
4098 case R_PPC64_GOT_TLSGD16_HI
:
4099 case R_PPC64_GOT_TLSGD16_HA
:
4100 tls_type
= TLS_TLS
| TLS_GD_LD
;
4103 case R_PPC64_GOT_TPREL16_DS
:
4104 case R_PPC64_GOT_TPREL16_LO_DS
:
4105 case R_PPC64_GOT_TPREL16_HI
:
4106 case R_PPC64_GOT_TPREL16_HA
:
4107 tls_type
= TLS_TLS
| TLS_TPREL
;
4110 case R_PPC64_GOT_DTPREL16_DS
:
4111 case R_PPC64_GOT_DTPREL16_LO_DS
:
4112 case R_PPC64_GOT_DTPREL16_HI
:
4113 case R_PPC64_GOT_DTPREL16_HA
:
4114 tls_type
= TLS_TLS
| TLS_DTPREL
;
4118 case R_PPC64_GOT16_DS
:
4119 case R_PPC64_GOT16_HA
:
4120 case R_PPC64_GOT16_HI
:
4121 case R_PPC64_GOT16_LO
:
4122 case R_PPC64_GOT16_LO_DS
:
4125 struct got_entry
*ent
;
4127 if (r_symndx
>= symtab_hdr
->sh_info
)
4129 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4133 ent
= local_got_ents
[r_symndx
];
4135 for (; ent
!= NULL
; ent
= ent
->next
)
4136 if (ent
->addend
== rel
->r_addend
4137 && ent
->tls_type
== tls_type
)
4141 if (ent
->got
.refcount
> 0)
4142 ent
->got
.refcount
-= 1;
4146 case R_PPC64_PLT16_HA
:
4147 case R_PPC64_PLT16_HI
:
4148 case R_PPC64_PLT16_LO
:
4152 case R_PPC64_REL14_BRNTAKEN
:
4153 case R_PPC64_REL14_BRTAKEN
:
4155 if (r_symndx
>= symtab_hdr
->sh_info
)
4157 struct plt_entry
*ent
;
4159 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4160 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4161 if (ent
->addend
== rel
->r_addend
)
4165 if (ent
->plt
.refcount
> 0)
4166 ent
->plt
.refcount
-= 1;
4173 if (r_symndx
>= symtab_hdr
->sh_info
)
4175 struct ppc_link_hash_entry
*eh
;
4176 struct ppc_dyn_relocs
**pp
;
4177 struct ppc_dyn_relocs
*p
;
4179 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4180 eh
= (struct ppc_link_hash_entry
*) h
;
4182 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4194 case R_PPC64_DTPMOD64
:
4195 case R_PPC64_DTPREL64
:
4196 case R_PPC64_TPREL64
:
4197 case R_PPC64_ADDR14
:
4198 case R_PPC64_ADDR14_BRNTAKEN
:
4199 case R_PPC64_ADDR14_BRTAKEN
:
4200 case R_PPC64_ADDR16
:
4201 case R_PPC64_ADDR16_DS
:
4202 case R_PPC64_ADDR16_HA
:
4203 case R_PPC64_ADDR16_HI
:
4204 case R_PPC64_ADDR16_HIGHER
:
4205 case R_PPC64_ADDR16_HIGHERA
:
4206 case R_PPC64_ADDR16_HIGHEST
:
4207 case R_PPC64_ADDR16_HIGHESTA
:
4208 case R_PPC64_ADDR16_LO
:
4209 case R_PPC64_ADDR16_LO_DS
:
4210 case R_PPC64_ADDR24
:
4211 case R_PPC64_ADDR32
:
4212 case R_PPC64_ADDR64
:
4213 case R_PPC64_UADDR16
:
4214 case R_PPC64_UADDR32
:
4215 case R_PPC64_UADDR64
:
4217 if (r_symndx
>= symtab_hdr
->sh_info
)
4219 struct ppc_link_hash_entry
*eh
;
4220 struct ppc_dyn_relocs
**pp
;
4221 struct ppc_dyn_relocs
*p
;
4223 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4224 eh
= (struct ppc_link_hash_entry
*) h
;
4226 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4244 /* Called via elf_link_hash_traverse to transfer dynamic linking
4245 information on function code symbol entries to their corresponding
4246 function descriptor symbol entries. */
4248 func_desc_adjust (h
, inf
)
4249 struct elf_link_hash_entry
*h
;
4252 struct bfd_link_info
*info
;
4253 struct ppc_link_hash_table
*htab
;
4254 struct plt_entry
*ent
;
4256 if (h
->root
.type
== bfd_link_hash_indirect
)
4259 if (h
->root
.type
== bfd_link_hash_warning
)
4260 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4262 info
= (struct bfd_link_info
*) inf
;
4263 htab
= ppc_hash_table (info
);
4265 /* If this is a function code symbol, transfer dynamic linking
4266 information to the function descriptor symbol. */
4267 if (!((struct ppc_link_hash_entry
*) h
)->is_func
)
4270 if (h
->root
.type
== bfd_link_hash_undefweak
4271 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
))
4272 htab
->have_undefweak
= TRUE
;
4274 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4275 if (ent
->plt
.refcount
> 0)
4278 && h
->root
.root
.string
[0] == '.'
4279 && h
->root
.root
.string
[1] != '\0')
4281 struct elf_link_hash_entry
*fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4282 bfd_boolean force_local
;
4284 /* Find the corresponding function descriptor symbol. Create it
4285 as undefined if necessary. */
4288 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
4289 FALSE
, FALSE
, TRUE
);
4293 && (h
->root
.type
== bfd_link_hash_undefined
4294 || h
->root
.type
== bfd_link_hash_undefweak
))
4298 struct bfd_link_hash_entry
*bh
;
4300 abfd
= h
->root
.u
.undef
.abfd
;
4301 newsym
= bfd_make_empty_symbol (abfd
);
4302 newsym
->name
= h
->root
.root
.string
+ 1;
4303 newsym
->section
= bfd_und_section_ptr
;
4305 newsym
->flags
= BSF_OBJECT
;
4306 if (h
->root
.type
== bfd_link_hash_undefweak
)
4307 newsym
->flags
|= BSF_WEAK
;
4310 if ( !(_bfd_generic_link_add_one_symbol
4311 (info
, abfd
, newsym
->name
, newsym
->flags
,
4312 newsym
->section
, newsym
->value
, NULL
, FALSE
, FALSE
, &bh
)))
4316 fdh
= (struct elf_link_hash_entry
*) bh
;
4317 fdh
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4321 && (fdh
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0
4323 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4324 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0))
4326 if (fdh
->dynindx
== -1)
4327 if (! bfd_elf64_link_record_dynamic_symbol (info
, fdh
))
4329 fdh
->elf_link_hash_flags
|= (h
->elf_link_hash_flags
4330 & (ELF_LINK_HASH_REF_REGULAR
4331 | ELF_LINK_HASH_REF_DYNAMIC
4332 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4333 | ELF_LINK_NON_GOT_REF
));
4334 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4336 fdh
->plt
.plist
= h
->plt
.plist
;
4337 fdh
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
4339 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
4340 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
4341 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
4344 /* Now that the info is on the function descriptor, clear the
4345 function code sym info. Any function code syms for which we
4346 don't have a definition in a regular file, we force local.
4347 This prevents a shared library from exporting syms that have
4348 been imported from another library. Function code syms that
4349 are really in the library we must leave global to prevent the
4350 linker dragging in a definition from a static library. */
4351 force_local
= (info
->shared
4352 && ((h
->elf_link_hash_flags
4353 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4355 || (fdh
->elf_link_hash_flags
4356 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4357 || (fdh
->elf_link_hash_flags
4358 & ELF_LINK_FORCED_LOCAL
) != 0));
4359 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4365 #define MIN_SAVE_FPR 14
4366 #define MAX_SAVE_FPR 31
4368 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4369 this hook to a) provide some gcc support functions, and b) transfer
4370 dynamic linking information gathered so far on function code symbol
4371 entries, to their corresponding function descriptor symbol entries. */
4373 ppc64_elf_func_desc_adjust (obfd
, info
)
4374 bfd
*obfd ATTRIBUTE_UNUSED
;
4375 struct bfd_link_info
*info
;
4377 struct ppc_link_hash_table
*htab
;
4378 unsigned int lowest_savef
= MAX_SAVE_FPR
+ 2;
4379 unsigned int lowest_restf
= MAX_SAVE_FPR
+ 2;
4381 struct elf_link_hash_entry
*h
;
4385 htab
= ppc_hash_table (info
);
4387 if (htab
->sfpr
== NULL
)
4388 /* We don't have any relocs. */
4391 /* First provide any missing ._savef* and ._restf* functions. */
4392 memcpy (sym
, "._savef14", 10);
4393 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4395 sym
[7] = i
/ 10 + '0';
4396 sym
[8] = i
% 10 + '0';
4397 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4399 && h
->root
.type
== bfd_link_hash_undefined
)
4401 if (lowest_savef
> i
)
4403 h
->root
.type
= bfd_link_hash_defined
;
4404 h
->root
.u
.def
.section
= htab
->sfpr
;
4405 h
->root
.u
.def
.value
= (i
- lowest_savef
) * 4;
4407 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4408 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4412 memcpy (sym
, "._restf14", 10);
4413 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4415 sym
[7] = i
/ 10 + '0';
4416 sym
[8] = i
% 10 + '0';
4417 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4419 && h
->root
.type
== bfd_link_hash_undefined
)
4421 if (lowest_restf
> i
)
4423 h
->root
.type
= bfd_link_hash_defined
;
4424 h
->root
.u
.def
.section
= htab
->sfpr
;
4425 h
->root
.u
.def
.value
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4426 + (i
- lowest_restf
) * 4);
4428 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4429 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4433 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, (PTR
) info
);
4435 htab
->sfpr
->_raw_size
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4436 + (MAX_SAVE_FPR
+ 2 - lowest_restf
) * 4);
4438 if (htab
->sfpr
->_raw_size
== 0)
4440 if (!htab
->have_undefweak
)
4442 _bfd_strip_section_from_output (info
, htab
->sfpr
);
4446 htab
->sfpr
->_raw_size
= 4;
4449 p
= (bfd_byte
*) bfd_alloc (htab
->elf
.dynobj
, htab
->sfpr
->_raw_size
);
4452 htab
->sfpr
->contents
= p
;
4454 for (i
= lowest_savef
; i
<= MAX_SAVE_FPR
; i
++)
4456 unsigned int fpr
= i
<< 21;
4457 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4458 bfd_put_32 (htab
->elf
.dynobj
, STFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4461 if (lowest_savef
<= MAX_SAVE_FPR
)
4463 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4467 for (i
= lowest_restf
; i
<= MAX_SAVE_FPR
; i
++)
4469 unsigned int fpr
= i
<< 21;
4470 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4471 bfd_put_32 (htab
->elf
.dynobj
, LFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4474 if (lowest_restf
<= MAX_SAVE_FPR
4475 || htab
->sfpr
->_raw_size
== 4)
4477 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4483 /* Adjust a symbol defined by a dynamic object and referenced by a
4484 regular object. The current definition is in some section of the
4485 dynamic object, but we're not including those sections. We have to
4486 change the definition to something the rest of the link can
4490 ppc64_elf_adjust_dynamic_symbol (info
, h
)
4491 struct bfd_link_info
*info
;
4492 struct elf_link_hash_entry
*h
;
4494 struct ppc_link_hash_table
*htab
;
4495 struct ppc_link_hash_entry
* eh
;
4496 struct ppc_dyn_relocs
*p
;
4498 unsigned int power_of_two
;
4500 htab
= ppc_hash_table (info
);
4502 /* Deal with function syms. */
4503 if (h
->type
== STT_FUNC
4504 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4506 /* Clear procedure linkage table information for any symbol that
4507 won't need a .plt entry. */
4508 struct plt_entry
*ent
;
4509 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4510 if (ent
->plt
.refcount
> 0)
4512 if (!((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
4514 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
4516 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) == 0
4517 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) == 0))
4519 h
->plt
.plist
= NULL
;
4520 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4525 h
->plt
.plist
= NULL
;
4527 /* If this is a weak symbol, and there is a real definition, the
4528 processor independent code will have arranged for us to see the
4529 real definition first, and we can just use the same value. */
4530 if (h
->weakdef
!= NULL
)
4532 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
4533 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
4534 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
4535 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
4539 /* This is a reference to a symbol defined by a dynamic object which
4540 is not a function. */
4542 /* If we are creating a shared library, we must presume that the
4543 only references to the symbol are via the global offset table.
4544 For such cases we need not do anything here; the relocations will
4545 be handled correctly by relocate_section. */
4549 /* If there are no references to this symbol that do not use the
4550 GOT, we don't need to generate a copy reloc. */
4551 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
4554 eh
= (struct ppc_link_hash_entry
*) h
;
4555 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4557 s
= p
->sec
->output_section
;
4558 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
4562 /* If we didn't find any dynamic relocs in read-only sections, then
4563 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4566 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
4570 /* We must allocate the symbol in our .dynbss section, which will
4571 become part of the .bss section of the executable. There will be
4572 an entry for this symbol in the .dynsym section. The dynamic
4573 object will contain position independent code, so all references
4574 from the dynamic object to this symbol will go through the global
4575 offset table. The dynamic linker will use the .dynsym entry to
4576 determine the address it must put in the global offset table, so
4577 both the dynamic object and the regular object will refer to the
4578 same memory location for the variable. */
4580 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4581 to copy the initial value out of the dynamic object and into the
4582 runtime process image. We need to remember the offset into the
4583 .rela.bss section we are going to use. */
4584 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4586 htab
->srelbss
->_raw_size
+= sizeof (Elf64_External_Rela
);
4587 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
4590 /* We need to figure out the alignment required for this symbol. I
4591 have no idea how ELF linkers handle this. */
4592 power_of_two
= bfd_log2 (h
->size
);
4593 if (power_of_two
> 4)
4596 /* Apply the required alignment. */
4598 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
, (bfd_size_type
) (1 << power_of_two
));
4599 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
4601 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
4605 /* Define the symbol as being at this point in the section. */
4606 h
->root
.u
.def
.section
= s
;
4607 h
->root
.u
.def
.value
= s
->_raw_size
;
4609 /* Increment the section size to make room for the symbol. */
4610 s
->_raw_size
+= h
->size
;
4615 /* If given a function descriptor symbol, hide both the function code
4616 sym and the descriptor. */
4618 ppc64_elf_hide_symbol (info
, h
, force_local
)
4619 struct bfd_link_info
*info
;
4620 struct elf_link_hash_entry
*h
;
4621 bfd_boolean force_local
;
4623 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4625 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
4627 struct elf_link_hash_entry
*fh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4632 struct ppc_link_hash_table
*htab
;
4635 /* We aren't supposed to use alloca in BFD because on
4636 systems which do not have alloca the version in libiberty
4637 calls xmalloc, which might cause the program to crash
4638 when it runs out of memory. This function doesn't have a
4639 return status, so there's no way to gracefully return an
4640 error. So cheat. We know that string[-1] can be safely
4641 dereferenced; It's either a string in an ELF string
4642 table, or allocated in an objalloc structure. */
4644 p
= h
->root
.root
.string
- 1;
4647 htab
= ppc_hash_table (info
);
4648 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4651 /* Unfortunately, if it so happens that the string we were
4652 looking for was allocated immediately before this string,
4653 then we overwrote the string terminator. That's the only
4654 reason the lookup should fail. */
4657 q
= h
->root
.root
.string
+ strlen (h
->root
.root
.string
);
4658 while (q
>= h
->root
.root
.string
&& *q
== *p
)
4660 if (q
< h
->root
.root
.string
&& *p
== '.')
4661 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4665 ((struct ppc_link_hash_entry
*) h
)->oh
= fh
;
4666 ((struct ppc_link_hash_entry
*) fh
)->oh
= h
;
4670 _bfd_elf_link_hash_hide_symbol (info
, fh
, force_local
);
4675 get_sym_h (hp
, symp
, symsecp
, tlstypep
, locsymsp
, r_symndx
, ibfd
)
4676 struct elf_link_hash_entry
**hp
;
4677 Elf_Internal_Sym
**symp
;
4680 Elf_Internal_Sym
**locsymsp
;
4681 unsigned long r_symndx
;
4684 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4686 if (r_symndx
>= symtab_hdr
->sh_info
)
4688 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
4689 struct elf_link_hash_entry
*h
;
4691 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4692 while (h
->root
.type
== bfd_link_hash_indirect
4693 || h
->root
.type
== bfd_link_hash_warning
)
4694 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4702 if (symsecp
!= NULL
)
4704 asection
*symsec
= NULL
;
4705 if (h
->root
.type
== bfd_link_hash_defined
4706 || h
->root
.type
== bfd_link_hash_defweak
)
4707 symsec
= h
->root
.u
.def
.section
;
4711 if (tlstypep
!= NULL
)
4713 struct ppc_link_hash_entry
*eh
;
4715 eh
= (struct ppc_link_hash_entry
*) h
;
4716 *tlstypep
= &eh
->tls_type
;
4721 Elf_Internal_Sym
*sym
;
4722 Elf_Internal_Sym
*locsyms
= *locsymsp
;
4724 if (locsyms
== NULL
)
4726 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4727 if (locsyms
== NULL
)
4728 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
4729 symtab_hdr
->sh_info
,
4730 0, NULL
, NULL
, NULL
);
4731 if (locsyms
== NULL
)
4733 *locsymsp
= locsyms
;
4735 sym
= locsyms
+ r_symndx
;
4743 if (symsecp
!= NULL
)
4745 asection
*symsec
= NULL
;
4746 if ((sym
->st_shndx
!= SHN_UNDEF
4747 && sym
->st_shndx
< SHN_LORESERVE
)
4748 || sym
->st_shndx
> SHN_HIRESERVE
)
4749 symsec
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
4753 if (tlstypep
!= NULL
)
4755 struct got_entry
**lgot_ents
;
4759 lgot_ents
= elf_local_got_ents (ibfd
);
4760 if (lgot_ents
!= NULL
)
4762 char *lgot_types
= (char *) (lgot_ents
+ symtab_hdr
->sh_info
);
4763 tlstype
= &lgot_types
[r_symndx
];
4765 *tlstypep
= tlstype
;
4772 get_tls_type (tls_type
, locsymsp
, rel
, ibfd
)
4774 Elf_Internal_Sym
**locsymsp
;
4775 const Elf_Internal_Rela
*rel
;
4778 unsigned long r_symndx
;
4779 struct elf_link_hash_entry
*h
;
4780 Elf_Internal_Sym
*sym
;
4784 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4785 if (!get_sym_h (&h
, &sym
, &sec
, tls_type
, locsymsp
, r_symndx
, ibfd
))
4788 if ((*tls_type
!= NULL
&& **tls_type
!= 0)
4790 || ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
4793 /* Look inside a TOC section too. */
4796 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
4797 off
= h
->root
.u
.def
.value
;
4800 off
= sym
->st_value
;
4801 off
+= rel
->r_addend
;
4802 BFD_ASSERT (off
% 8 == 0);
4803 r_symndx
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8];
4804 return get_sym_h (&h
, &sym
, NULL
, tls_type
, locsymsp
, r_symndx
, ibfd
);
4808 ppc64_elf_edit_opd (obfd
, info
)
4810 struct bfd_link_info
*info
;
4814 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
4817 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
4818 Elf_Internal_Shdr
*symtab_hdr
;
4819 Elf_Internal_Sym
*local_syms
;
4820 struct elf_link_hash_entry
**sym_hashes
;
4824 bfd_boolean need_edit
;
4826 sec
= bfd_get_section_by_name (ibfd
, ".opd");
4830 amt
= sec
->_raw_size
* sizeof (long) / 24;
4831 adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
4834 /* Must be a ld -r link. ie. check_relocs hasn't been
4836 adjust
= (long *) bfd_zalloc (obfd
, amt
);
4837 ppc64_elf_section_data (sec
)->opd
.adjust
= adjust
;
4839 memset (adjust
, 0, (size_t) amt
);
4841 if (sec
->output_section
== bfd_abs_section_ptr
)
4844 /* Look through the section relocs. */
4845 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
4849 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4850 sym_hashes
= elf_sym_hashes (ibfd
);
4852 /* Read the relocations. */
4853 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
4854 (Elf_Internal_Rela
*) NULL
,
4856 if (relstart
== NULL
)
4859 /* First run through the relocs to check they are sane, and to
4860 determine whether we need to edit this opd section. */
4863 relend
= relstart
+ sec
->reloc_count
;
4864 for (rel
= relstart
; rel
< relend
; rel
++)
4866 enum elf_ppc64_reloc_type r_type
;
4867 unsigned long r_symndx
;
4869 struct elf_link_hash_entry
*h
;
4870 Elf_Internal_Sym
*sym
;
4872 /* .opd contains a regular array of 24 byte entries. We're
4873 only interested in the reloc pointing to a function entry
4875 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4876 if (r_type
== R_PPC64_TOC
)
4879 if (r_type
!= R_PPC64_ADDR64
)
4881 (*_bfd_error_handler
)
4882 (_("%s: unexpected reloc type %u in .opd section"),
4883 bfd_archive_filename (ibfd
), r_type
);
4888 if (rel
+ 1 >= relend
)
4890 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
);
4891 if (r_type
!= R_PPC64_TOC
)
4894 if (rel
->r_offset
!= offset
)
4896 /* If someone messes with .opd alignment then after a
4897 "ld -r" we might have padding in the middle of .opd.
4898 Also, there's nothing to prevent someone putting
4899 something silly in .opd with the assembler. No .opd
4900 optimization for them! */
4901 (*_bfd_error_handler
)
4902 (_("%s: .opd is not a regular array of opd entries"),
4903 bfd_archive_filename (ibfd
));
4908 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4909 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4911 goto error_free_rel
;
4913 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
4915 const char *sym_name
;
4917 sym_name
= h
->root
.root
.string
;
4919 sym_name
= bfd_elf_local_sym_name (ibfd
, sym
);
4921 (*_bfd_error_handler
)
4922 (_("%s: undefined sym `%s' in .opd section"),
4923 bfd_archive_filename (ibfd
),
4929 /* opd entries are always for functions defined in the
4930 current input bfd. If the symbol isn't defined in the
4931 input bfd, then we won't be using the function in this
4932 bfd; It must be defined in a linkonce section in another
4933 bfd, or is weak. It's also possible that we are
4934 discarding the function due to a linker script /DISCARD/,
4935 which we test for via the output_section. */
4936 if (sym_sec
->owner
!= ibfd
4937 || sym_sec
->output_section
== bfd_abs_section_ptr
)
4945 Elf_Internal_Rela
*write_rel
;
4946 bfd_byte
*rptr
, *wptr
;
4949 /* This seems a waste of time as input .opd sections are all
4950 zeros as generated by gcc, but I suppose there's no reason
4951 this will always be so. We might start putting something in
4952 the third word of .opd entries. */
4953 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
4955 bfd_byte
*loc
= bfd_alloc (ibfd
, sec
->_raw_size
);
4957 || !bfd_get_section_contents (ibfd
, sec
, loc
, (bfd_vma
) 0,
4960 if (local_syms
!= NULL
4961 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
4964 if (elf_section_data (sec
)->relocs
!= relstart
)
4968 sec
->contents
= loc
;
4969 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
4972 elf_section_data (sec
)->relocs
= relstart
;
4974 wptr
= sec
->contents
;
4975 rptr
= sec
->contents
;
4976 write_rel
= relstart
;
4979 for (rel
= relstart
; rel
< relend
; rel
++)
4981 if (rel
->r_offset
== offset
)
4983 unsigned long r_symndx
;
4985 struct elf_link_hash_entry
*h
;
4986 Elf_Internal_Sym
*sym
;
4988 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4989 get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4992 skip
= (sym_sec
->owner
!= ibfd
4993 || sym_sec
->output_section
== bfd_abs_section_ptr
);
4996 if (h
!= NULL
&& sym_sec
->owner
== ibfd
)
4998 /* Arrange for the function descriptor sym
5000 struct ppc_link_hash_entry
*fdh
;
5001 struct ppc_link_hash_entry
*fh
;
5003 fh
= (struct ppc_link_hash_entry
*) h
;
5004 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5007 const char *fd_name
;
5008 struct ppc_link_hash_table
*htab
;
5010 fd_name
= h
->root
.root
.string
+ 1;
5011 htab
= ppc_hash_table (info
);
5012 fdh
= (struct ppc_link_hash_entry
*)
5013 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5014 FALSE
, FALSE
, FALSE
);
5015 fdh
->is_func_descriptor
= 1;
5021 fdh
->elf
.root
.u
.def
.value
= 0;
5022 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
5027 /* We'll be keeping this opd entry. */
5031 /* Redefine the function descriptor symbol
5032 to this location in the opd section.
5033 We've checked above that opd relocs are
5035 struct ppc_link_hash_entry
*fdh
;
5036 struct ppc_link_hash_entry
*fh
;
5038 fh
= (struct ppc_link_hash_entry
*) h
;
5039 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5042 const char *fd_name
;
5043 struct ppc_link_hash_table
*htab
;
5045 fd_name
= h
->root
.root
.string
+ 1;
5046 htab
= ppc_hash_table (info
);
5047 fdh
= (struct ppc_link_hash_entry
*)
5048 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5049 FALSE
, FALSE
, FALSE
);
5050 fdh
->is_func_descriptor
= 1;
5056 fdh
->elf
.root
.u
.def
.value
= wptr
- sec
->contents
;
5060 /* Local syms are a bit tricky. We could
5061 tweak them as they can be cached, but
5062 we'd need to look through the local syms
5063 for the function descriptor sym which we
5064 don't have at the moment. So keep an
5065 array of adjustments. */
5066 adjust
[rel
->r_offset
/ 24] = wptr
- rptr
;
5070 memcpy (wptr
, rptr
, 24);
5077 /* We need to adjust any reloc offsets to point to the
5078 new opd entries. While we're at it, we may as well
5079 remove redundant relocs. */
5082 rel
->r_offset
+= wptr
- rptr
;
5083 if (write_rel
!= rel
)
5084 memcpy (write_rel
, rel
, sizeof (*rel
));
5089 sec
->_cooked_size
= wptr
- sec
->contents
;
5090 sec
->reloc_count
= write_rel
- relstart
;
5091 /* Fudge the size too, as this is used later in
5092 elf_bfd_final_link if we are emitting relocs. */
5093 elf_section_data (sec
)->rel_hdr
.sh_size
5094 = sec
->reloc_count
* elf_section_data (sec
)->rel_hdr
.sh_entsize
;
5095 BFD_ASSERT (elf_section_data (sec
)->rel_hdr2
== NULL
);
5097 else if (elf_section_data (sec
)->relocs
!= relstart
)
5100 if (local_syms
!= NULL
5101 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5103 if (!info
->keep_memory
)
5106 symtab_hdr
->contents
= (unsigned char *) local_syms
;
5113 /* Run through all the TLS relocs looking for optimization
5114 opportunities. The linker has been hacked (see ppc64elf.em) to do
5115 a preliminary section layout so that we know the TLS segment
5116 offsets. We can't optimize earlier because some optimizations need
5117 to know the tp offset, and we need to optimize before allocating
5118 dynamic relocations. */
5121 ppc64_elf_tls_optimize (obfd
, info
)
5123 struct bfd_link_info
*info
;
5128 struct ppc_link_hash_table
*htab
;
5130 if (info
->relocateable
)
5133 for (tls
= obfd
->sections
; tls
!= NULL
; tls
= tls
->next
)
5134 if ((tls
->flags
& (SEC_THREAD_LOCAL
| SEC_LOAD
))
5135 == (SEC_THREAD_LOCAL
| SEC_LOAD
))
5140 htab
= ppc_hash_table (info
);
5141 htab
->tls_sec
= tls
;
5146 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5148 Elf_Internal_Sym
*locsyms
= NULL
;
5150 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5151 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5153 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5154 int expecting_tls_get_addr
;
5156 /* Read the relocations. */
5157 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
5158 (Elf_Internal_Rela
*) NULL
,
5160 if (relstart
== NULL
)
5163 expecting_tls_get_addr
= 0;
5164 relend
= relstart
+ sec
->reloc_count
;
5165 for (rel
= relstart
; rel
< relend
; rel
++)
5167 enum elf_ppc64_reloc_type r_type
;
5168 unsigned long r_symndx
;
5169 struct elf_link_hash_entry
*h
;
5170 Elf_Internal_Sym
*sym
;
5173 char tls_set
, tls_clear
, got_tls_type
= 0;
5175 bfd_boolean ok_tprel
;
5177 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5178 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_type
, &locsyms
,
5182 if (elf_section_data (sec
)->relocs
!= relstart
)
5185 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5186 != (unsigned char *) locsyms
))
5193 if (h
->root
.type
!= bfd_link_hash_defined
5194 && h
->root
.type
!= bfd_link_hash_defweak
)
5196 value
= h
->root
.u
.def
.value
;
5199 value
= sym
->st_value
;
5201 if (sym_sec
!= NULL
&& sym_sec
->output_section
!= NULL
)
5203 value
+= sym_sec
->output_offset
;
5204 value
+= sym_sec
->output_section
->vma
;
5205 value
-= htab
->tls_sec
->vma
;
5206 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
5207 < (bfd_vma
) 1 << 32);
5211 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
5214 case R_PPC64_GOT_TLSLD16
:
5215 case R_PPC64_GOT_TLSLD16_LO
:
5216 case R_PPC64_GOT_TLSLD16_HI
:
5217 case R_PPC64_GOT_TLSLD16_HA
:
5218 htab
->tlsld_got
.refcount
-= 1;
5223 /* We still need a GOT entry as the offset is
5224 too big. ie. LD -> IE. */
5225 tls_set
= TLS_TLS
| TLS_TPREL
;
5226 tls_clear
= TLS_GD_LD
;
5227 got_tls_type
= TLS_TLS
| TLS_GD_LD
| TLS_LD
;
5228 expecting_tls_get_addr
= 1;
5231 case R_PPC64_GOT_TLSGD16
:
5232 case R_PPC64_GOT_TLSGD16_LO
:
5233 case R_PPC64_GOT_TLSGD16_HI
:
5234 case R_PPC64_GOT_TLSGD16_HA
:
5237 || ((h
->elf_link_hash_flags
5238 & ELF_LINK_HASH_DEF_REGULAR
) != 0
5239 && ((h
->elf_link_hash_flags
5240 & ELF_LINK_FORCED_LOCAL
) != 0
5242 || info
->symbolic
))))
5247 tls_set
= TLS_TLS
| TLS_TPREL
;
5248 tls_clear
= TLS_GD_LD
;
5249 got_tls_type
= TLS_TLS
| TLS_GD_LD
;
5250 expecting_tls_get_addr
= 1;
5253 case R_PPC64_GOT_TPREL16_DS
:
5254 case R_PPC64_GOT_TPREL16_LO_DS
:
5255 case R_PPC64_GOT_TPREL16_HI
:
5256 case R_PPC64_GOT_TPREL16_HA
:
5257 expecting_tls_get_addr
= 0;
5262 tls_clear
= TLS_TPREL
;
5263 got_tls_type
= TLS_TLS
| TLS_TPREL
;
5270 case R_PPC64_REL14_BRTAKEN
:
5271 case R_PPC64_REL14_BRNTAKEN
:
5274 && h
== htab
->tls_get_addr
)
5276 if (!expecting_tls_get_addr
5278 && ((ELF64_R_TYPE (rel
[-1].r_info
)
5280 || (ELF64_R_TYPE (rel
[-1].r_info
)
5281 == R_PPC64_TOC16_LO
)))
5283 /* Check for toc tls entries. */
5286 if (!get_tls_type (&toc_tls
, &locsyms
,
5289 if (toc_tls
!= NULL
)
5290 expecting_tls_get_addr
= *toc_tls
!= 0;
5293 if (expecting_tls_get_addr
)
5295 struct plt_entry
*ent
;
5296 for (ent
= h
->plt
.plist
; ent
; ent
= ent
->next
)
5297 if (ent
->addend
== 0)
5299 if (ent
->plt
.refcount
> 0)
5300 ent
->plt
.refcount
-= 1;
5305 expecting_tls_get_addr
= 0;
5308 case R_PPC64_TPREL64
:
5309 expecting_tls_get_addr
= 0;
5313 tls_set
= TLS_EXPLICIT
;
5314 tls_clear
= TLS_TPREL
;
5320 case R_PPC64_DTPMOD64
:
5321 expecting_tls_get_addr
= 0;
5322 if ((*tls_type
& TLS_LD
) == 0)
5325 || ((h
->elf_link_hash_flags
5326 & ELF_LINK_HASH_DEF_REGULAR
) != 0
5327 && ((h
->elf_link_hash_flags
5328 & ELF_LINK_FORCED_LOCAL
) != 0
5330 || info
->symbolic
)))
5333 tls_set
= TLS_EXPLICIT
;
5336 tls_set
= TLS_EXPLICIT
| TLS_TPREL
;
5337 tls_clear
= TLS_GD_LD
;
5343 tls_set
= TLS_EXPLICIT
;
5346 tls_set
= TLS_EXPLICIT
| TLS_TPREL
;
5347 tls_clear
= TLS_GD_LD
;
5352 expecting_tls_get_addr
= 0;
5356 if ((tls_set
& TLS_EXPLICIT
) == 0)
5358 struct got_entry
*ent
;
5360 /* Adjust got entry for this reloc. */
5364 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
5366 for (; ent
!= NULL
; ent
= ent
->next
)
5367 if (ent
->addend
== rel
->r_addend
5368 && ent
->tls_type
== got_tls_type
)
5375 /* We managed to get rid of a got entry. */
5376 if (ent
->got
.refcount
> 0)
5377 ent
->got
.refcount
-= 1;
5380 ent
->tls_type
= tls_set
;
5384 struct ppc_link_hash_entry
* eh
;
5385 struct ppc_dyn_relocs
**pp
;
5386 struct ppc_dyn_relocs
*p
;
5388 /* Adjust dynamic relocs. */
5389 eh
= (struct ppc_link_hash_entry
*) h
;
5390 for (pp
= &eh
->dyn_relocs
;
5395 /* If we got rid of a DTPMOD/DTPREL reloc
5396 pair then we'll lose one or two dyn
5398 if (tls_clear
== TLS_GD_LD
5401 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
5402 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5404 if (tls_set
== TLS_EXPLICIT
)
5412 *tls_type
|= tls_set
;
5413 *tls_type
&= ~tls_clear
;
5416 if (elf_section_data (sec
)->relocs
!= relstart
)
5421 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5422 != (unsigned char *) locsyms
))
5424 if (!info
->keep_memory
)
5427 elf_tdata (ibfd
)->symtab_hdr
.contents
= (unsigned char *) locsyms
;
5433 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5434 will be called from elflink.h. If elflink.h doesn't call our
5435 finish_dynamic_symbol routine, we'll need to do something about
5436 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5437 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
5439 && ((INFO)->shared \
5440 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5441 && ((H)->dynindx != -1 \
5442 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5444 /* Allocate space in .plt, .got and associated reloc sections for
5448 allocate_dynrelocs (h
, inf
)
5449 struct elf_link_hash_entry
*h
;
5452 struct bfd_link_info
*info
;
5453 struct ppc_link_hash_table
*htab
;
5455 struct ppc_link_hash_entry
*eh
;
5456 struct ppc_dyn_relocs
*p
;
5457 struct got_entry
*gent
;
5459 if (h
->root
.type
== bfd_link_hash_indirect
)
5462 if (h
->root
.type
== bfd_link_hash_warning
)
5463 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5465 info
= (struct bfd_link_info
*) inf
;
5466 htab
= ppc_hash_table (info
);
5468 if (htab
->elf
.dynamic_sections_created
5470 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
, h
))
5472 struct plt_entry
*pent
;
5473 bfd_boolean doneone
= FALSE
;
5474 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
5475 if (pent
->plt
.refcount
> 0)
5477 BFD_ASSERT (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
);
5479 /* If this is the first .plt entry, make room for the special
5482 if (s
->_raw_size
== 0)
5483 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
5485 pent
->plt
.offset
= s
->_raw_size
;
5487 /* Make room for this entry. */
5488 s
->_raw_size
+= PLT_ENTRY_SIZE
;
5490 /* Make room for the .glink code. */
5492 if (s
->_raw_size
== 0)
5493 s
->_raw_size
+= GLINK_CALL_STUB_SIZE
;
5494 /* We need bigger stubs past index 32767. */
5495 if (s
->_raw_size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
5497 s
->_raw_size
+= 2*4;
5499 /* We also need to make an entry in the .rela.plt section. */
5501 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
5505 pent
->plt
.offset
= (bfd_vma
) -1;
5508 h
->plt
.plist
= NULL
;
5509 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5514 h
->plt
.plist
= NULL
;
5515 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5518 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5519 if (gent
->got
.refcount
> 0)
5521 /* Make sure this symbol is output as a dynamic symbol.
5522 Undefined weak syms won't yet be marked as dynamic. */
5523 if (h
->dynindx
== -1
5524 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5526 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5530 if ((gent
->tls_type
& TLS_LD
) != 0)
5531 gent
->got
.offset
= htab
->tlsld_got
.offset
;
5537 gent
->got
.offset
= s
->_raw_size
;
5538 s
->_raw_size
+= (gent
->tls_type
& TLS_GD_LD
) != 0 ? 16 : 8;
5539 dyn
= htab
->elf
.dynamic_sections_created
;
5540 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
))
5541 htab
->srelgot
->_raw_size
5542 += ((gent
->tls_type
& TLS_GD_LD
) != 0
5543 ? 2 * sizeof (Elf64_External_Rela
)
5544 : sizeof (Elf64_External_Rela
));
5548 gent
->got
.offset
= (bfd_vma
) -1;
5550 eh
= (struct ppc_link_hash_entry
*) h
;
5551 if (eh
->dyn_relocs
== NULL
)
5554 /* In the shared -Bsymbolic case, discard space allocated for
5555 dynamic pc-relative relocs against symbols which turn out to be
5556 defined in regular objects. For the normal shared case, discard
5557 space for relocs that have become local due to symbol visibility
5562 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) != 0
5563 && ((h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
5566 struct ppc_dyn_relocs
**pp
;
5568 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
5570 p
->count
-= p
->pc_count
;
5581 /* For the non-shared case, discard space for relocs against
5582 symbols which turn out to need copy relocs or are not
5585 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
5586 && (((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
5587 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
5588 || (htab
->elf
.dynamic_sections_created
5589 && (h
->root
.type
== bfd_link_hash_undefweak
5590 || h
->root
.type
== bfd_link_hash_undefined
))))
5592 /* Make sure this symbol is output as a dynamic symbol.
5593 Undefined weak syms won't yet be marked as dynamic. */
5594 if (h
->dynindx
== -1
5595 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5597 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5601 /* If that succeeded, we know we'll be keeping all the
5603 if (h
->dynindx
!= -1)
5607 eh
->dyn_relocs
= NULL
;
5612 /* Finally, allocate space. */
5613 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5615 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
5616 sreloc
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5622 /* Find any dynamic relocs that apply to read-only sections. */
5625 readonly_dynrelocs (h
, inf
)
5626 struct elf_link_hash_entry
*h
;
5629 struct ppc_link_hash_entry
*eh
;
5630 struct ppc_dyn_relocs
*p
;
5632 if (h
->root
.type
== bfd_link_hash_warning
)
5633 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5635 eh
= (struct ppc_link_hash_entry
*) h
;
5636 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5638 asection
*s
= p
->sec
->output_section
;
5640 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
5642 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
5644 info
->flags
|= DF_TEXTREL
;
5646 /* Not an error, just cut short the traversal. */
5653 /* Set the sizes of the dynamic sections. */
5656 ppc64_elf_size_dynamic_sections (output_bfd
, info
)
5657 bfd
*output_bfd ATTRIBUTE_UNUSED
;
5658 struct bfd_link_info
*info
;
5660 struct ppc_link_hash_table
*htab
;
5666 htab
= ppc_hash_table (info
);
5667 dynobj
= htab
->elf
.dynobj
;
5671 if (htab
->elf
.dynamic_sections_created
)
5673 /* Set the contents of the .interp section to the interpreter. */
5676 s
= bfd_get_section_by_name (dynobj
, ".interp");
5679 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
5680 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
5684 if (htab
->tlsld_got
.refcount
> 0)
5686 htab
->tlsld_got
.offset
= htab
->sgot
->_raw_size
;
5687 htab
->sgot
->_raw_size
+= 16;
5689 htab
->srelgot
->_raw_size
+= sizeof (Elf64_External_Rela
);
5692 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
5694 /* Set up .got offsets for local syms, and space for local dynamic
5696 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5698 struct got_entry
**lgot_ents
;
5699 struct got_entry
**end_lgot_ents
;
5700 bfd_size_type locsymcount
;
5701 Elf_Internal_Shdr
*symtab_hdr
;
5704 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
5707 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
5709 struct ppc_dyn_relocs
*p
;
5711 for (p
= *((struct ppc_dyn_relocs
**)
5712 &elf_section_data (s
)->local_dynrel
);
5716 if (!bfd_is_abs_section (p
->sec
)
5717 && bfd_is_abs_section (p
->sec
->output_section
))
5719 /* Input section has been discarded, either because
5720 it is a copy of a linkonce section or due to
5721 linker script /DISCARD/, so we'll be discarding
5724 else if (p
->count
!= 0)
5726 srel
= elf_section_data (p
->sec
)->sreloc
;
5727 srel
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5728 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
5729 info
->flags
|= DF_TEXTREL
;
5734 lgot_ents
= elf_local_got_ents (ibfd
);
5738 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
5739 locsymcount
= symtab_hdr
->sh_info
;
5740 end_lgot_ents
= lgot_ents
+ locsymcount
;
5742 srel
= htab
->srelgot
;
5743 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
)
5745 struct got_entry
*ent
;
5747 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
5748 if (ent
->got
.refcount
> 0)
5750 if ((ent
->tls_type
& TLS_LD
) != 0)
5752 if (htab
->tlsld_got
.offset
== (bfd_vma
) -1)
5754 htab
->tlsld_got
.offset
= s
->_raw_size
;
5757 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5759 ent
->got
.offset
= htab
->tlsld_got
.offset
;
5763 ent
->got
.offset
= s
->_raw_size
;
5764 if ((ent
->tls_type
& TLS_GD_LD
) != 0)
5768 srel
->_raw_size
+= 2 * sizeof (Elf64_External_Rela
);
5774 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5779 ent
->got
.offset
= (bfd_vma
) -1;
5783 /* Allocate global sym .plt and .got entries, and space for global
5784 sym dynamic relocs. */
5785 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
5787 /* We now have determined the sizes of the various dynamic sections.
5788 Allocate memory for them. */
5790 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
5792 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
5795 /* Reset _cooked_size since prelim layout will set it wrongly,
5796 and a non-zero _cooked_size sticks. */
5797 s
->_cooked_size
= 0;
5799 if (s
== htab
->sbrlt
|| s
== htab
->srelbrlt
)
5800 /* These haven't been allocated yet; don't strip. */
5802 else if (s
== htab
->splt
5804 || s
== htab
->sglink
)
5806 /* Strip this section if we don't need it; see the
5809 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
5811 if (s
->_raw_size
== 0)
5813 /* If we don't need this section, strip it from the
5814 output file. This is mostly to handle .rela.bss and
5815 .rela.plt. We must create both sections in
5816 create_dynamic_sections, because they must be created
5817 before the linker maps input sections to output
5818 sections. The linker does that before
5819 adjust_dynamic_symbol is called, and it is that
5820 function which decides whether anything needs to go
5821 into these sections. */
5825 if (s
!= htab
->srelplt
)
5828 /* We use the reloc_count field as a counter if we need
5829 to copy relocs into the output file. */
5835 /* It's not one of our sections, so don't allocate space. */
5839 if (s
->_raw_size
== 0)
5841 _bfd_strip_section_from_output (info
, s
);
5845 /* .plt is in the bss section. We don't initialise it. */
5846 if ((s
->flags
& SEC_LOAD
) == 0)
5849 /* Allocate memory for the section contents. We use bfd_zalloc
5850 here in case unused entries are not reclaimed before the
5851 section's contents are written out. This should not happen,
5852 but this way if it does we get a R_PPC64_NONE reloc in .rela
5853 sections instead of garbage.
5854 We also rely on the section contents being zero when writing
5856 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
5857 if (s
->contents
== NULL
)
5861 if (htab
->elf
.dynamic_sections_created
)
5863 /* Add some entries to the .dynamic section. We fill in the
5864 values later, in ppc64_elf_finish_dynamic_sections, but we
5865 must add the entries now so that we get the correct size for
5866 the .dynamic section. The DT_DEBUG entry is filled in by the
5867 dynamic linker and used by the debugger. */
5868 #define add_dynamic_entry(TAG, VAL) \
5869 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5873 if (!add_dynamic_entry (DT_DEBUG
, 0))
5877 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
5879 if (!add_dynamic_entry (DT_PLTGOT
, 0)
5880 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
5881 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
5882 || !add_dynamic_entry (DT_JMPREL
, 0)
5883 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
5889 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
5890 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
5896 if (!add_dynamic_entry (DT_RELA
, 0)
5897 || !add_dynamic_entry (DT_RELASZ
, 0)
5898 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
5901 /* If any dynamic relocs apply to a read-only section,
5902 then we need a DT_TEXTREL entry. */
5903 if ((info
->flags
& DF_TEXTREL
) == 0)
5904 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
5907 if ((info
->flags
& DF_TEXTREL
) != 0)
5909 if (!add_dynamic_entry (DT_TEXTREL
, 0))
5914 #undef add_dynamic_entry
5919 /* Determine the type of stub needed, if any, for a call. */
5921 static INLINE
enum ppc_stub_type
5922 ppc_type_of_stub (input_sec
, rel
, hash
, destination
)
5923 asection
*input_sec
;
5924 const Elf_Internal_Rela
*rel
;
5925 struct ppc_link_hash_entry
**hash
;
5926 bfd_vma destination
;
5928 struct ppc_link_hash_entry
*h
= *hash
;
5930 bfd_vma branch_offset
;
5931 bfd_vma max_branch_offset
;
5932 unsigned int r_type
;
5937 && h
->oh
->dynindx
!= -1)
5939 struct plt_entry
*ent
;
5940 for (ent
= h
->oh
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5941 if (ent
->addend
== rel
->r_addend
5942 && ent
->plt
.offset
!= (bfd_vma
) -1)
5944 *hash
= (struct ppc_link_hash_entry
*) h
->oh
;
5945 return ppc_stub_plt_call
;
5949 if (h
->elf
.root
.type
== bfd_link_hash_undefweak
5950 || h
->elf
.root
.type
== bfd_link_hash_undefined
)
5951 return ppc_stub_none
;
5954 /* Determine where the call point is. */
5955 location
= (input_sec
->output_offset
5956 + input_sec
->output_section
->vma
5959 branch_offset
= destination
- location
;
5960 r_type
= ELF64_R_TYPE (rel
->r_info
);
5962 /* Determine if a long branch stub is needed. */
5963 max_branch_offset
= 1 << 25;
5964 if (r_type
!= (unsigned int) R_PPC64_REL24
)
5965 max_branch_offset
= 1 << 15;
5967 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
)
5968 /* We need a stub. Figure out whether a long_branch or plt_branch
5970 return ppc_stub_long_branch
;
5972 return ppc_stub_none
;
5975 /* Build a .plt call stub. */
5978 build_plt_stub (obfd
, p
, offset
, glink
)
5984 #define PPC_LO(v) ((v) & 0xffff)
5985 #define PPC_HI(v) (((v) >> 16) & 0xffff)
5986 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
5989 bfd_put_32 (obfd
, LD_R2_40R1
, p
), p
+= 4;
5990 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
5992 bfd_put_32 (obfd
, STD_R2_40R1
, p
), p
+= 4;
5993 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
5994 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
5995 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
5997 bfd_put_32 (obfd
, LD_R2_0R12
| PPC_LO (offset
), p
), p
+= 4;
5998 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
5999 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6001 bfd_put_32 (obfd
, MTCTR_R11
, p
), p
+= 4;
6002 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6003 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
6008 ppc_build_one_stub (gen_entry
, in_arg
)
6009 struct bfd_hash_entry
*gen_entry
;
6012 struct ppc_stub_hash_entry
*stub_entry
;
6013 struct ppc_branch_hash_entry
*br_entry
;
6014 struct bfd_link_info
*info
;
6015 struct ppc_link_hash_table
*htab
;
6021 struct plt_entry
*ent
;
6025 /* Massage our args to the form they really have. */
6026 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6027 info
= (struct bfd_link_info
*) in_arg
;
6029 htab
= ppc_hash_table (info
);
6030 stub_sec
= stub_entry
->stub_sec
;
6032 /* Make a note of the offset within the stubs for this entry. */
6033 stub_entry
->stub_offset
= stub_sec
->_cooked_size
;
6034 loc
= stub_sec
->contents
+ stub_entry
->stub_offset
;
6036 stub_bfd
= stub_sec
->owner
;
6038 switch (stub_entry
->stub_type
)
6040 case ppc_stub_long_branch
:
6041 /* Branches are relative. This is where we are going to. */
6042 off
= (stub_entry
->target_value
6043 + stub_entry
->target_section
->output_offset
6044 + stub_entry
->target_section
->output_section
->vma
);
6046 /* And this is where we are coming from. */
6047 off
-= (stub_entry
->stub_offset
6048 + stub_sec
->output_offset
6049 + stub_sec
->output_section
->vma
);
6051 BFD_ASSERT (off
+ (1 << 25) < (bfd_vma
) (1 << 26));
6053 bfd_put_32 (stub_bfd
, (bfd_vma
) B_DOT
| (off
& 0x3fffffc), loc
);
6057 case ppc_stub_plt_branch
:
6058 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6059 stub_entry
->root
.string
+ 9,
6061 if (br_entry
== NULL
)
6063 (*_bfd_error_handler
) (_("can't find branch stub `%s'"),
6064 stub_entry
->root
.string
+ 9);
6065 htab
->stub_error
= TRUE
;
6069 off
= (stub_entry
->target_value
6070 + stub_entry
->target_section
->output_offset
6071 + stub_entry
->target_section
->output_section
->vma
);
6073 bfd_put_64 (htab
->sbrlt
->owner
, off
,
6074 htab
->sbrlt
->contents
+ br_entry
->offset
);
6078 /* Create a reloc for the branch lookup table entry. */
6079 Elf_Internal_Rela rela
;
6082 rela
.r_offset
= (br_entry
->offset
6083 + htab
->sbrlt
->output_offset
6084 + htab
->sbrlt
->output_section
->vma
);
6085 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
6086 rela
.r_addend
= off
;
6088 loc
= htab
->srelbrlt
->contents
;
6089 loc
+= htab
->srelbrlt
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6090 bfd_elf64_swap_reloca_out (htab
->srelbrlt
->owner
, &rela
, loc
);
6093 off
= (br_entry
->offset
6094 + htab
->sbrlt
->output_offset
6095 + htab
->sbrlt
->output_section
->vma
6096 - elf_gp (htab
->sbrlt
->output_section
->owner
)
6099 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6101 (*_bfd_error_handler
)
6102 (_("linkage table error against `%s'"),
6103 stub_entry
->root
.string
);
6104 bfd_set_error (bfd_error_bad_value
);
6105 htab
->stub_error
= TRUE
;
6110 bfd_put_32 (stub_bfd
, (bfd_vma
) ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6111 bfd_put_32 (stub_bfd
, (bfd_vma
) LD_R11_0R12
| PPC_LO (indx
), loc
+ 4);
6112 bfd_put_32 (stub_bfd
, (bfd_vma
) MTCTR_R11
, loc
+ 8);
6113 bfd_put_32 (stub_bfd
, (bfd_vma
) BCTR
, loc
+ 12);
6117 case ppc_stub_plt_call
:
6118 /* Do the best we can for shared libraries built without
6119 exporting ".foo" for each "foo". This can happen when symbol
6120 versioning scripts strip all bar a subset of symbols. */
6121 if (stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defined
6122 && stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defweak
)
6124 /* Point the symbol at the stub. There may be multiple stubs,
6125 we don't really care; The main thing is to make this sym
6126 defined somewhere. */
6127 stub_entry
->h
->oh
->root
.type
= bfd_link_hash_defined
;
6128 stub_entry
->h
->oh
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6129 stub_entry
->h
->oh
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6132 /* Now build the stub. */
6134 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6135 if (ent
->addend
== stub_entry
->addend
)
6137 off
= ent
->plt
.offset
;
6140 if (off
>= (bfd_vma
) -2)
6143 off
&= ~ (bfd_vma
) 1;
6144 off
+= (htab
->splt
->output_offset
6145 + htab
->splt
->output_section
->vma
6146 - elf_gp (htab
->splt
->output_section
->owner
)
6149 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6151 (*_bfd_error_handler
)
6152 (_("linkage table error against `%s'"),
6153 stub_entry
->h
->elf
.root
.root
.string
);
6154 bfd_set_error (bfd_error_bad_value
);
6155 htab
->stub_error
= TRUE
;
6159 p
= build_plt_stub (stub_bfd
, loc
, (int) off
, 0);
6168 stub_sec
->_cooked_size
+= size
;
6172 /* As above, but don't actually build the stub. Just bump offset so
6173 we know stub section sizes, and select plt_branch stubs where
6174 long_branch stubs won't do. */
6177 ppc_size_one_stub (gen_entry
, in_arg
)
6178 struct bfd_hash_entry
*gen_entry
;
6181 struct ppc_stub_hash_entry
*stub_entry
;
6182 struct ppc_link_hash_table
*htab
;
6186 /* Massage our args to the form they really have. */
6187 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6188 htab
= (struct ppc_link_hash_table
*) in_arg
;
6190 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
6192 struct plt_entry
*ent
;
6193 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6194 if (ent
->addend
== stub_entry
->addend
)
6196 off
= ent
->plt
.offset
& ~(bfd_vma
) 1;
6201 off
+= (htab
->splt
->output_offset
6202 + htab
->splt
->output_section
->vma
6203 - elf_gp (htab
->splt
->output_section
->owner
)
6207 if (PPC_HA ((int) off
+ 16) != PPC_HA ((int) off
))
6212 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6213 stub_entry
->stub_type
= ppc_stub_long_branch
;
6216 off
= (stub_entry
->target_value
6217 + stub_entry
->target_section
->output_offset
6218 + stub_entry
->target_section
->output_section
->vma
);
6219 off
-= (stub_entry
->stub_sec
->_raw_size
6220 + stub_entry
->stub_sec
->output_offset
6221 + stub_entry
->stub_sec
->output_section
->vma
);
6223 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
6225 struct ppc_branch_hash_entry
*br_entry
;
6227 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6228 stub_entry
->root
.string
+ 9,
6230 if (br_entry
== NULL
)
6232 (*_bfd_error_handler
) (_("can't build branch stub `%s'"),
6233 stub_entry
->root
.string
+ 9);
6234 htab
->stub_error
= TRUE
;
6238 if (br_entry
->iter
!= htab
->stub_iteration
)
6240 br_entry
->iter
= htab
->stub_iteration
;
6241 br_entry
->offset
= htab
->sbrlt
->_raw_size
;
6242 htab
->sbrlt
->_raw_size
+= 8;
6244 stub_entry
->stub_type
= ppc_stub_plt_branch
;
6249 stub_entry
->stub_sec
->_raw_size
+= size
;
6253 /* Set up various things so that we can make a list of input sections
6254 for each output section included in the link. Returns -1 on error,
6255 0 when no stubs will be needed, and 1 on success. */
6258 ppc64_elf_setup_section_lists (output_bfd
, info
)
6260 struct bfd_link_info
*info
;
6263 int top_id
, top_index
;
6265 asection
**input_list
, **list
;
6267 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6269 if (htab
->elf
.root
.creator
->flavour
!= bfd_target_elf_flavour
6270 || htab
->sbrlt
== NULL
)
6273 /* Find the top input section id. */
6274 for (input_bfd
= info
->input_bfds
, top_id
= 0;
6276 input_bfd
= input_bfd
->link_next
)
6278 for (section
= input_bfd
->sections
;
6280 section
= section
->next
)
6282 if (top_id
< section
->id
)
6283 top_id
= section
->id
;
6287 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
6288 htab
->stub_group
= (struct map_stub
*) bfd_zmalloc (amt
);
6289 if (htab
->stub_group
== NULL
)
6292 /* We can't use output_bfd->section_count here to find the top output
6293 section index as some sections may have been removed, and
6294 _bfd_strip_section_from_output doesn't renumber the indices. */
6295 for (section
= output_bfd
->sections
, top_index
= 0;
6297 section
= section
->next
)
6299 if (top_index
< section
->index
)
6300 top_index
= section
->index
;
6303 htab
->top_index
= top_index
;
6304 amt
= sizeof (asection
*) * (top_index
+ 1);
6305 input_list
= (asection
**) bfd_malloc (amt
);
6306 htab
->input_list
= input_list
;
6307 if (input_list
== NULL
)
6310 /* For sections we aren't interested in, mark their entries with a
6311 value we can check later. */
6312 list
= input_list
+ top_index
;
6314 *list
= bfd_abs_section_ptr
;
6315 while (list
-- != input_list
);
6317 for (section
= output_bfd
->sections
;
6319 section
= section
->next
)
6321 if ((section
->flags
& SEC_CODE
) != 0)
6322 input_list
[section
->index
] = NULL
;
6328 /* The linker repeatedly calls this function for each input section,
6329 in the order that input sections are linked into output sections.
6330 Build lists of input sections to determine groupings between which
6331 we may insert linker stubs. */
6334 ppc64_elf_next_input_section (info
, isec
)
6335 struct bfd_link_info
*info
;
6338 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6340 if (isec
->output_section
->index
<= htab
->top_index
)
6342 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
6343 if (*list
!= bfd_abs_section_ptr
)
6345 /* Steal the link_sec pointer for our list. */
6346 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6347 /* This happens to make the list in reverse order,
6348 which is what we want. */
6349 PREV_SEC (isec
) = *list
;
6355 /* See whether we can group stub sections together. Grouping stub
6356 sections may result in fewer stubs. More importantly, we need to
6357 put all .init* and .fini* stubs at the beginning of the .init or
6358 .fini output sections respectively, because glibc splits the
6359 _init and _fini functions into multiple parts. Putting a stub in
6360 the middle of a function is not a good idea. */
6363 group_sections (htab
, stub_group_size
, stubs_always_before_branch
)
6364 struct ppc_link_hash_table
*htab
;
6365 bfd_size_type stub_group_size
;
6366 bfd_boolean stubs_always_before_branch
;
6368 asection
**list
= htab
->input_list
+ htab
->top_index
;
6371 asection
*tail
= *list
;
6372 if (tail
== bfd_abs_section_ptr
)
6374 while (tail
!= NULL
)
6378 bfd_size_type total
;
6381 if (tail
->_cooked_size
)
6382 total
= tail
->_cooked_size
;
6384 total
= tail
->_raw_size
;
6385 while ((prev
= PREV_SEC (curr
)) != NULL
6386 && ((total
+= curr
->output_offset
- prev
->output_offset
)
6390 /* OK, the size from the start of CURR to the end is less
6391 than stub_group_size and thus can be handled by one stub
6392 section. (or the tail section is itself larger than
6393 stub_group_size, in which case we may be toast.) We
6394 should really be keeping track of the total size of stubs
6395 added here, as stubs contribute to the final output
6396 section size. That's a little tricky, and this way will
6397 only break if stubs added make the total size more than
6398 2^25, ie. for the default stub_group_size, if stubs total
6399 more than 2834432 bytes, or over 100000 plt call stubs. */
6402 prev
= PREV_SEC (tail
);
6403 /* Set up this stub group. */
6404 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6406 while (tail
!= curr
&& (tail
= prev
) != NULL
);
6408 /* But wait, there's more! Input sections up to stub_group_size
6409 bytes before the stub section can be handled by it too. */
6410 if (!stubs_always_before_branch
)
6414 && ((total
+= tail
->output_offset
- prev
->output_offset
)
6418 prev
= PREV_SEC (tail
);
6419 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6425 while (list
-- != htab
->input_list
);
6426 free (htab
->input_list
);
6430 /* Determine and set the size of the stub section for a final link.
6432 The basic idea here is to examine all the relocations looking for
6433 PC-relative calls to a target that is unreachable with a "bl"
6437 ppc64_elf_size_stubs (output_bfd
, stub_bfd
, info
, group_size
,
6438 add_stub_section
, layout_sections_again
)
6441 struct bfd_link_info
*info
;
6442 bfd_signed_vma group_size
;
6443 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
6444 void (*layout_sections_again
) PARAMS ((void));
6446 bfd_size_type stub_group_size
;
6447 bfd_boolean stubs_always_before_branch
;
6448 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6450 /* Stash our params away. */
6451 htab
->stub_bfd
= stub_bfd
;
6452 htab
->add_stub_section
= add_stub_section
;
6453 htab
->layout_sections_again
= layout_sections_again
;
6454 stubs_always_before_branch
= group_size
< 0;
6456 stub_group_size
= -group_size
;
6458 stub_group_size
= group_size
;
6459 if (stub_group_size
== 1)
6461 /* Default values. */
6462 stub_group_size
= 30720000;
6463 if (htab
->has_14bit_branch
)
6464 stub_group_size
= 30000;
6467 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
6472 unsigned int bfd_indx
;
6474 bfd_boolean stub_changed
;
6476 htab
->stub_iteration
+= 1;
6477 stub_changed
= FALSE
;
6479 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
6481 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
6483 Elf_Internal_Shdr
*symtab_hdr
;
6485 Elf_Internal_Sym
*local_syms
= NULL
;
6487 /* We'll need the symbol table in a second. */
6488 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6489 if (symtab_hdr
->sh_info
== 0)
6492 /* Walk over each section attached to the input bfd. */
6493 for (section
= input_bfd
->sections
;
6495 section
= section
->next
)
6497 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
6499 /* If there aren't any relocs, then there's nothing more
6501 if ((section
->flags
& SEC_RELOC
) == 0
6502 || section
->reloc_count
== 0)
6505 /* If this section is a link-once section that will be
6506 discarded, then don't create any stubs. */
6507 if (section
->output_section
== NULL
6508 || section
->output_section
->owner
!= output_bfd
)
6511 /* Get the relocs. */
6513 = _bfd_elf64_link_read_relocs (input_bfd
, section
, NULL
,
6514 (Elf_Internal_Rela
*) NULL
,
6516 if (internal_relocs
== NULL
)
6517 goto error_ret_free_local
;
6519 /* Now examine each relocation. */
6520 irela
= internal_relocs
;
6521 irelaend
= irela
+ section
->reloc_count
;
6522 for (; irela
< irelaend
; irela
++)
6524 unsigned int r_type
, r_indx
;
6525 enum ppc_stub_type stub_type
;
6526 struct ppc_stub_hash_entry
*stub_entry
;
6529 bfd_vma destination
;
6530 struct ppc_link_hash_entry
*hash
;
6531 struct elf_link_hash_entry
*h
;
6532 Elf_Internal_Sym
*sym
;
6534 const asection
*id_sec
;
6536 r_type
= ELF64_R_TYPE (irela
->r_info
);
6537 r_indx
= ELF64_R_SYM (irela
->r_info
);
6539 if (r_type
>= (unsigned int) R_PPC64_max
)
6541 bfd_set_error (bfd_error_bad_value
);
6542 goto error_ret_free_internal
;
6545 /* Only look for stubs on branch instructions. */
6546 if (r_type
!= (unsigned int) R_PPC64_REL24
6547 && r_type
!= (unsigned int) R_PPC64_REL14
6548 && r_type
!= (unsigned int) R_PPC64_REL14_BRTAKEN
6549 && r_type
!= (unsigned int) R_PPC64_REL14_BRNTAKEN
)
6552 /* Now determine the call target, its name, value,
6555 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
6557 goto error_ret_free_internal
;
6558 hash
= (struct ppc_link_hash_entry
*) h
;
6562 /* It's a local symbol. */
6563 sym_value
= sym
->st_value
;
6564 destination
= (sym_value
+ irela
->r_addend
6565 + sym_sec
->output_offset
6566 + sym_sec
->output_section
->vma
);
6570 /* It's an external symbol. */
6572 if (hash
->elf
.root
.type
== bfd_link_hash_defined
6573 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
6575 sym_value
= hash
->elf
.root
.u
.def
.value
;
6576 if (sym_sec
->output_section
!= NULL
)
6577 destination
= (sym_value
+ irela
->r_addend
6578 + sym_sec
->output_offset
6579 + sym_sec
->output_section
->vma
);
6581 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
)
6583 else if (hash
->elf
.root
.type
== bfd_link_hash_undefined
)
6587 bfd_set_error (bfd_error_bad_value
);
6588 goto error_ret_free_internal
;
6592 /* Determine what (if any) linker stub is needed. */
6593 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
6595 if (stub_type
== ppc_stub_none
)
6598 /* __tls_get_addr calls might be eliminated. */
6599 if (stub_type
!= ppc_stub_plt_call
6601 && &hash
->elf
== htab
->tls_get_addr
6602 && section
->has_tls_reloc
6603 && irela
!= internal_relocs
)
6608 if (!get_tls_type (&tls_type
, &local_syms
,
6609 irela
- 1, input_bfd
))
6610 goto error_ret_free_internal
;
6611 if (tls_type
!= NULL
6612 && (*tls_type
& (TLS_TLS
| TLS_GD_LD
)) == TLS_TLS
)
6616 /* Support for grouping stub sections. */
6617 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
6619 /* Get the name of this stub. */
6620 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
6622 goto error_ret_free_internal
;
6624 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
6625 stub_name
, FALSE
, FALSE
);
6626 if (stub_entry
!= NULL
)
6628 /* The proper stub has already been created. */
6633 stub_entry
= ppc_add_stub (stub_name
, section
, htab
);
6634 if (stub_entry
== NULL
)
6637 error_ret_free_internal
:
6638 if (elf_section_data (section
)->relocs
== NULL
)
6639 free (internal_relocs
);
6640 error_ret_free_local
:
6641 if (local_syms
!= NULL
6642 && (symtab_hdr
->contents
6643 != (unsigned char *) local_syms
))
6648 stub_entry
->target_value
= sym_value
;
6649 stub_entry
->target_section
= sym_sec
;
6650 stub_entry
->stub_type
= stub_type
;
6651 stub_entry
->h
= hash
;
6652 stub_entry
->addend
= irela
->r_addend
;
6653 stub_changed
= TRUE
;
6656 /* We're done with the internal relocs, free them. */
6657 if (elf_section_data (section
)->relocs
!= internal_relocs
)
6658 free (internal_relocs
);
6661 if (local_syms
!= NULL
6662 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
6664 if (!info
->keep_memory
)
6667 symtab_hdr
->contents
= (unsigned char *) local_syms
;
6674 /* OK, we've added some stubs. Find out the new size of the
6676 for (stub_sec
= htab
->stub_bfd
->sections
;
6678 stub_sec
= stub_sec
->next
)
6680 stub_sec
->_raw_size
= 0;
6681 stub_sec
->_cooked_size
= 0;
6683 htab
->sbrlt
->_raw_size
= 0;
6684 htab
->sbrlt
->_cooked_size
= 0;
6686 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, htab
);
6688 /* Ask the linker to do its stuff. */
6689 (*htab
->layout_sections_again
) ();
6692 /* It would be nice to strip .branch_lt from the output if the
6693 section is empty, but it's too late. If we strip sections here,
6694 the dynamic symbol table is corrupted since the section symbol
6695 for the stripped section isn't written. */
6700 /* Called after we have determined section placement. If sections
6701 move, we'll be called again. Provide a value for TOCstart. */
6704 ppc64_elf_toc (obfd
)
6710 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6711 order. The TOC starts where the first of these sections starts. */
6712 s
= bfd_get_section_by_name (obfd
, ".got");
6714 s
= bfd_get_section_by_name (obfd
, ".toc");
6716 s
= bfd_get_section_by_name (obfd
, ".tocbss");
6718 s
= bfd_get_section_by_name (obfd
, ".plt");
6721 /* This may happen for
6722 o references to TOC base (SYM@toc / TOC[tc0]) without a
6725 o --gc-sections and empty TOC sections
6727 FIXME: Warn user? */
6729 /* Look for a likely section. We probably won't even be
6731 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6732 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
))
6733 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6736 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6737 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
))
6738 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6741 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6742 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
)) == SEC_ALLOC
)
6745 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6746 if ((s
->flags
& SEC_ALLOC
) == SEC_ALLOC
)
6752 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
6757 /* Build all the stubs associated with the current output file.
6758 The stubs are kept in a hash table attached to the main linker
6759 hash table. This function is called via gldelf64ppc_finish. */
6762 ppc64_elf_build_stubs (info
)
6763 struct bfd_link_info
*info
;
6765 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6770 for (stub_sec
= htab
->stub_bfd
->sections
;
6772 stub_sec
= stub_sec
->next
)
6776 /* Allocate memory to hold the linker stubs. */
6777 size
= stub_sec
->_raw_size
;
6780 stub_sec
->contents
= (bfd_byte
*) bfd_zalloc (htab
->stub_bfd
, size
);
6781 if (stub_sec
->contents
== NULL
)
6784 stub_sec
->_cooked_size
= 0;
6787 if (htab
->splt
!= NULL
)
6791 /* Build the .glink plt call stub. */
6792 plt_r2
= (htab
->splt
->output_offset
6793 + htab
->splt
->output_section
->vma
6794 - elf_gp (htab
->splt
->output_section
->owner
)
6796 p
= htab
->sglink
->contents
;
6797 p
= build_plt_stub (htab
->sglink
->owner
, p
, (int) plt_r2
, 1);
6798 while (p
< htab
->sglink
->contents
+ GLINK_CALL_STUB_SIZE
)
6800 bfd_put_32 (htab
->sglink
->owner
, NOP
, p
);
6804 /* Build the .glink lazy link call stubs. */
6806 while (p
< htab
->sglink
->contents
+ htab
->sglink
->_raw_size
)
6810 bfd_put_32 (htab
->sglink
->owner
, LI_R0_0
| indx
, p
);
6815 bfd_put_32 (htab
->sglink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
6817 bfd_put_32 (htab
->sglink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
), p
);
6820 bfd_put_32 (htab
->sglink
->owner
,
6821 B_DOT
| ((htab
->sglink
->contents
- p
) & 0x3fffffc), p
);
6825 htab
->sglink
->_cooked_size
= p
- htab
->sglink
->contents
;
6828 if (htab
->sbrlt
->_raw_size
!= 0)
6830 htab
->sbrlt
->contents
= (bfd_byte
*) bfd_zalloc (htab
->sbrlt
->owner
,
6831 htab
->sbrlt
->_raw_size
);
6832 if (htab
->sbrlt
->contents
== NULL
)
6836 /* Build the stubs as directed by the stub hash table. */
6837 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
6839 for (stub_sec
= htab
->stub_bfd
->sections
;
6841 stub_sec
= stub_sec
->next
)
6843 if (stub_sec
->_raw_size
!= stub_sec
->_cooked_size
)
6847 if (stub_sec
!= NULL
6848 || htab
->sglink
->_raw_size
!= htab
->sglink
->_cooked_size
)
6850 htab
->stub_error
= TRUE
;
6851 (*_bfd_error_handler
) (_("stubs don't match calculated size"));
6854 return !htab
->stub_error
;
6857 /* The RELOCATE_SECTION function is called by the ELF backend linker
6858 to handle the relocations for a section.
6860 The relocs are always passed as Rela structures; if the section
6861 actually uses Rel structures, the r_addend field will always be
6864 This function is responsible for adjust the section contents as
6865 necessary, and (if using Rela relocs and generating a
6866 relocateable output file) adjusting the reloc addend as
6869 This function does not have to worry about setting the reloc
6870 address or the reloc symbol index.
6872 LOCAL_SYMS is a pointer to the swapped in local symbols.
6874 LOCAL_SECTIONS is an array giving the section in the input file
6875 corresponding to the st_shndx field of each local symbol.
6877 The global hash table entry for the global symbols can be found
6878 via elf_sym_hashes (input_bfd).
6880 When generating relocateable output, this function must handle
6881 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6882 going to be the section symbol corresponding to the output
6883 section, which means that the addend must be adjusted
6887 ppc64_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6888 contents
, relocs
, local_syms
, local_sections
)
6890 struct bfd_link_info
*info
;
6892 asection
*input_section
;
6894 Elf_Internal_Rela
*relocs
;
6895 Elf_Internal_Sym
*local_syms
;
6896 asection
**local_sections
;
6898 struct ppc_link_hash_table
*htab
;
6899 Elf_Internal_Shdr
*symtab_hdr
;
6900 struct elf_link_hash_entry
**sym_hashes
;
6901 Elf_Internal_Rela
*rel
;
6902 Elf_Internal_Rela
*relend
;
6903 Elf_Internal_Rela outrel
;
6905 unsigned int tls_get_addr_type
;
6906 struct got_entry
**local_got_ents
;
6908 bfd_boolean ret
= TRUE
;
6910 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
6911 bfd_boolean is_power4
= FALSE
;
6913 if (info
->relocateable
)
6916 /* Initialize howto table if needed. */
6917 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
6920 htab
= ppc_hash_table (info
);
6921 if (info
->shared
&& (htab
->tlsld_got
.offset
& 1) == 0)
6923 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
6924 + htab
->sgot
->output_offset
6925 + htab
->tlsld_got
.offset
);
6926 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_DTPMOD64
);
6927 outrel
.r_addend
= 0;
6929 loc
= htab
->srelgot
->contents
;
6930 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6931 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
6932 htab
->tlsld_got
.offset
|= 1;
6935 local_got_ents
= elf_local_got_ents (input_bfd
);
6936 TOCstart
= elf_gp (output_bfd
);
6937 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6938 sym_hashes
= elf_sym_hashes (input_bfd
);
6939 is_opd
= ppc64_elf_section_data (input_section
)->opd
.adjust
!= NULL
;
6941 tls_get_addr_type
= 0;
6943 relend
= relocs
+ input_section
->reloc_count
;
6944 for (; rel
< relend
; rel
++)
6946 enum elf_ppc64_reloc_type r_type
;
6948 bfd_reloc_status_type r
;
6949 Elf_Internal_Sym
*sym
;
6951 struct elf_link_hash_entry
*h
;
6952 struct elf_link_hash_entry
*fdh
;
6953 const char *sym_name
;
6954 unsigned long r_symndx
;
6957 bfd_boolean unresolved_reloc
;
6960 struct ppc_stub_hash_entry
*stub_entry
;
6961 bfd_vma max_br_offset
;
6964 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
6965 r_symndx
= ELF64_R_SYM (rel
->r_info
);
6966 r
= bfd_reloc_other
;
6967 sym
= (Elf_Internal_Sym
*) 0;
6968 sec
= (asection
*) 0;
6969 h
= (struct elf_link_hash_entry
*) 0;
6970 sym_name
= (const char *) 0;
6971 unresolved_reloc
= FALSE
;
6974 if (r_type
== R_PPC64_TOC
)
6976 /* Relocation value is TOC base. Symbol is ignored. */
6977 relocation
= TOCstart
+ TOC_BASE_OFF
;
6979 else if (r_symndx
< symtab_hdr
->sh_info
)
6981 /* It's a local symbol. */
6982 sym
= local_syms
+ r_symndx
;
6983 sec
= local_sections
[r_symndx
];
6984 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
6985 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
6986 if (elf_section_data (sec
) != NULL
)
6988 long *opd_sym_adjust
;
6990 opd_sym_adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
6991 if (opd_sym_adjust
!= NULL
&& sym
->st_value
% 24 == 0)
6992 relocation
+= opd_sym_adjust
[sym
->st_value
/ 24];
6997 /* It's a global symbol. */
6998 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6999 while (h
->root
.type
== bfd_link_hash_indirect
7000 || h
->root
.type
== bfd_link_hash_warning
)
7001 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7002 sym_name
= h
->root
.root
.string
;
7004 if (h
->root
.type
== bfd_link_hash_defined
7005 || h
->root
.type
== bfd_link_hash_defweak
)
7007 sec
= h
->root
.u
.def
.section
;
7008 if (sec
->output_section
== NULL
)
7009 /* Set a flag that will be cleared later if we find a
7010 relocation value for this symbol. output_section
7011 is typically NULL for symbols satisfied by a shared
7013 unresolved_reloc
= TRUE
;
7015 relocation
= (h
->root
.u
.def
.value
7016 + sec
->output_section
->vma
7017 + sec
->output_offset
);
7019 else if (h
->root
.type
== bfd_link_hash_undefweak
)
7021 else if (info
->shared
7022 && (!info
->symbolic
|| info
->allow_shlib_undefined
)
7023 && !info
->no_undefined
7024 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
7028 if (! ((*info
->callbacks
->undefined_symbol
)
7029 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
7030 rel
->r_offset
, (!info
->shared
7031 || info
->no_undefined
7032 || ELF_ST_VISIBILITY (h
->other
)))))
7038 /* TLS optimizations. */
7040 if (IS_TLS_RELOC (r_type
))
7043 tls_type
= ((struct ppc_link_hash_entry
*) h
)->tls_type
;
7044 else if (local_got_ents
!= NULL
)
7047 lgot_types
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
7048 tls_type
= lgot_types
[r_symndx
];
7052 /* Ensure reloc mapping code below stays sane. */
7053 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
7054 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
7055 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
7056 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
7057 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
7058 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
7059 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
7060 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
7061 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
7062 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
7067 tls_get_addr_type
= 0;
7071 case R_PPC64_TOC16_LO
:
7072 case R_PPC64_TOC16_DS
:
7073 case R_PPC64_TOC16_LO_DS
:
7074 tls_get_addr_type
= 0;
7076 /* Check for toc tls entries. */
7079 if (!get_tls_type (&toc_tls
, &local_syms
, rel
, input_bfd
))
7084 tls_type
= *toc_tls
;
7085 if (r_type
== R_PPC64_TOC16_DS
7086 || r_type
== R_PPC64_TOC16_LO_DS
)
7089 tls_get_addr_type
= tls_type
;
7094 case R_PPC64_GOT_TPREL16_DS
:
7095 case R_PPC64_GOT_TPREL16_LO_DS
:
7096 tls_get_addr_type
= 0;
7099 && (tls_type
& TLS_TPREL
) == 0)
7102 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
7104 insn
|= 0x3c0d0000; /* addis 0,13,0 */
7105 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
7106 r_type
= R_PPC64_TPREL16_HA
;
7107 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7112 tls_get_addr_type
= 0;
7115 /* Check for toc tls entries. */
7118 if (!get_tls_type (&toc_tls
, &local_syms
, rel
, input_bfd
))
7122 tls_type
= *toc_tls
;
7125 && (tls_type
& TLS_TPREL
) == 0)
7128 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7129 if ((insn
& ((31 << 26) | (31 << 11)))
7130 == ((31 << 26) | (13 << 11)))
7131 rtra
= insn
& ((1 << 26) - (1 << 16));
7132 else if ((insn
& ((31 << 26) | (31 << 16)))
7133 == ((31 << 26) | (13 << 16)))
7134 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
7137 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
7140 else if ((insn
& (31 << 1)) == 23 << 1
7141 && ((insn
& (31 << 6)) < 14 << 6
7142 || ((insn
& (31 << 6)) >= 16 << 6
7143 && (insn
& (31 << 6)) < 24 << 6)))
7144 /* load and store indexed -> dform. */
7145 insn
= (32 | ((insn
>> 6) & 31)) << 26;
7146 else if ((insn
& (31 << 1)) == 21 << 1
7147 && (insn
& (0x1a << 6)) == 0)
7148 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7149 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
7150 | ((insn
>> 6) & 1));
7151 else if ((insn
& (31 << 1)) == 21 << 1
7152 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
7154 insn
= (58 << 26) | 2;
7158 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7159 r_type
= R_PPC64_TPREL16_LO
;
7160 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7161 /* Was PPC64_TLS which sits on insn boundary, now
7162 PPC64_TPREL16_LO which is at insn+2. */
7167 case R_PPC64_GOT_TLSGD16
:
7168 case R_PPC64_GOT_TLSGD16_LO
:
7169 case R_PPC64_GOT_TLSGD16_HI
:
7170 case R_PPC64_GOT_TLSGD16_HA
:
7171 case R_PPC64_GOT_TLSLD16
:
7172 case R_PPC64_GOT_TLSLD16_LO
:
7173 case R_PPC64_GOT_TLSLD16_HI
:
7174 case R_PPC64_GOT_TLSLD16_HA
:
7175 tls_get_addr_type
= 0;
7176 if (tls_type
!= 0 && (tls_type
& TLS_GD_LD
) == 0)
7178 if (r_type
== R_PPC64_GOT_TLSGD16_HI
7179 || r_type
== R_PPC64_GOT_TLSGD16_HA
7180 || r_type
== R_PPC64_GOT_TLSLD16_HI
7181 || r_type
== R_PPC64_GOT_TLSLD16_HA
)
7183 if ((tls_type
& TLS_LD
) != 0)
7185 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7186 r_type
= R_PPC64_NONE
;
7190 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7191 + R_PPC64_GOT_TPREL16_DS
);
7192 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7196 /* This reloc and its instruction will be replaced so there's
7197 not much point in doing anything more here. We know the
7198 next reloc will be a REL24 to __tls_get_addr, and will
7199 be handled below. */
7200 tls_get_addr_type
= tls_type
;
7206 case R_PPC64_REL14_BRTAKEN
:
7207 case R_PPC64_REL14_BRNTAKEN
:
7210 && h
== htab
->tls_get_addr
7211 && tls_get_addr_type
!= 0
7212 && (tls_get_addr_type
& TLS_GD_LD
) == 0)
7214 /* Replace the call. */
7215 bfd_vma insn1
, insn2
, insn3
;
7216 bfd_vma offset
= rel
->r_offset
;
7218 insn1
= bfd_get_32 (output_bfd
, contents
+ rel
[-1].r_offset
- 2);
7219 insn3
= bfd_get_32 (output_bfd
, contents
+ offset
+ 4);
7220 if (tls_get_addr_type
& TLS_TPREL
)
7223 insn1
&= (1 << 26) - (1 << 2);
7224 insn1
|= 58 << 26; /* ld */
7225 insn2
= 0x7c636a14; /* add 3,3,13 */
7226 /* Fix the relocs for --emit-relocs. */
7227 r_type
= ELF64_R_TYPE (rel
[-1].r_info
);
7228 if (tls_get_addr_type
& TLS_EXPLICIT
)
7229 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
7231 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7232 + R_PPC64_GOT_TPREL16_DS
);
7234 = ELF64_R_INFO (ELF64_R_SYM (rel
[-1].r_info
), r_type
);
7240 insn1
= 0x3c6d0000; /* addis 3,13,0 */
7241 insn2
= 0x38630000; /* addi 3,3,0 */
7242 if (tls_get_addr_type
& TLS_LD
)
7245 rel
[-1].r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7246 rel
->r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7249 r_symndx
= ELF64_R_SYM (rel
[-1].r_info
);
7250 rel
[-1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_TPREL16_HA
);
7251 rel
->r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_TPREL16_LO
);
7255 || insn3
== CROR_151515
|| insn3
== CROR_313131
)
7261 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
[-1].r_offset
- 2);
7262 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7263 bfd_put_32 (output_bfd
, insn3
, contents
+ offset
+ 4);
7264 /* Do the relocs again. */
7266 tls_get_addr_type
= 0;
7269 tls_get_addr_type
= 0;
7272 case R_PPC64_DTPMOD64
:
7273 if ((tls_type
& TLS_GD_LD
) == 0)
7275 if ((tls_type
& TLS_TPREL
) != 0)
7276 r_type
= R_PPC64_TPREL64
;
7279 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7280 contents
+ rel
->r_offset
);
7281 r_type
= R_PPC64_NONE
;
7283 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7284 if ((tls_type
& TLS_LD
) == 0)
7289 case R_PPC64_TPREL64
:
7290 if ((tls_type
& TLS_TPREL
) == 0)
7292 r_type
= R_PPC64_NONE
;
7293 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7298 /* Handle other relocations that tweak non-addend part of insn. */
7305 /* Branch taken prediction relocations. */
7306 case R_PPC64_ADDR14_BRTAKEN
:
7307 case R_PPC64_REL14_BRTAKEN
:
7308 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7311 /* Branch not taken prediction relocations. */
7312 case R_PPC64_ADDR14_BRNTAKEN
:
7313 case R_PPC64_REL14_BRNTAKEN
:
7314 insn
|= bfd_get_32 (output_bfd
,
7315 contents
+ rel
->r_offset
) & ~(0x01 << 21);
7318 /* Set 'a' bit. This is 0b00010 in BO field for branch
7319 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7320 for branch on CTR insns (BO == 1a00t or 1a01t). */
7321 if ((insn
& (0x14 << 21)) == (0x04 << 21))
7323 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
7330 from
= (rel
->r_offset
7331 + input_section
->output_offset
7332 + input_section
->output_section
->vma
);
7334 /* Invert 'y' bit if not the default. */
7335 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
7339 bfd_put_32 (output_bfd
, (bfd_vma
) insn
, contents
+ rel
->r_offset
);
7343 /* A REL24 branching to a linkage function is followed by a
7344 nop. We replace the nop with a ld in order to restore
7345 the TOC base pointer. Only calls to shared objects need
7346 to alter the TOC base. These are recognized by their
7347 need for a PLT entry. */
7349 && (fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
) != NULL
7350 && fdh
->plt
.plist
!= NULL
7351 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
,
7352 rel
, htab
)) != NULL
)
7354 bfd_boolean can_plt_call
= 0;
7356 if (rel
->r_offset
+ 8 <= input_section
->_cooked_size
)
7358 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
7360 || insn
== CROR_151515
|| insn
== CROR_313131
)
7362 bfd_put_32 (input_bfd
, (bfd_vma
) LD_R2_40R1
,
7363 contents
+ rel
->r_offset
+ 4);
7370 /* If this is a plain branch rather than a branch
7371 and link, don't require a nop. */
7372 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7373 if ((insn
& 1) == 0)
7379 relocation
= (stub_entry
->stub_offset
7380 + stub_entry
->stub_sec
->output_offset
7381 + stub_entry
->stub_sec
->output_section
->vma
);
7382 unresolved_reloc
= FALSE
;
7387 && h
->root
.type
== bfd_link_hash_undefweak
7389 && rel
->r_addend
== 0)
7391 /* Tweak calls to undefined weak functions to point at a
7392 blr. We can thus call a weak function without first
7393 checking whether the function is defined. We have a
7394 blr at the end of .sfpr. */
7395 BFD_ASSERT (htab
->sfpr
->_raw_size
!= 0);
7396 relocation
= (htab
->sfpr
->_raw_size
- 4
7397 + htab
->sfpr
->output_offset
7398 + htab
->sfpr
->output_section
->vma
);
7399 from
= (rel
->r_offset
7400 + input_section
->output_offset
7401 + input_section
->output_section
->vma
);
7403 /* But let's not be silly about it. If the blr isn't in
7404 reach, just go to the next instruction. */
7405 if (relocation
- from
+ (1 << 25) >= (1 << 26)
7406 || htab
->sfpr
->_raw_size
== 0)
7407 relocation
= from
+ 4;
7414 addend
= rel
->r_addend
;
7418 (*_bfd_error_handler
)
7419 (_("%s: unknown relocation type %d for symbol %s"),
7420 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
7422 bfd_set_error (bfd_error_bad_value
);
7428 case R_PPC64_GNU_VTINHERIT
:
7429 case R_PPC64_GNU_VTENTRY
:
7432 /* GOT16 relocations. Like an ADDR16 using the symbol's
7433 address in the GOT as relocation value instead of the
7434 symbol's value itself. Also, create a GOT entry for the
7435 symbol and put the symbol value there. */
7436 case R_PPC64_GOT_TLSGD16
:
7437 case R_PPC64_GOT_TLSGD16_LO
:
7438 case R_PPC64_GOT_TLSGD16_HI
:
7439 case R_PPC64_GOT_TLSGD16_HA
:
7440 tls_type
= TLS_TLS
| TLS_GD_LD
;
7443 case R_PPC64_GOT_TLSLD16
:
7444 case R_PPC64_GOT_TLSLD16_LO
:
7445 case R_PPC64_GOT_TLSLD16_HI
:
7446 case R_PPC64_GOT_TLSLD16_HA
:
7447 tls_type
= TLS_TLS
| TLS_GD_LD
| TLS_LD
;
7450 case R_PPC64_GOT_TPREL16_DS
:
7451 case R_PPC64_GOT_TPREL16_LO_DS
:
7452 case R_PPC64_GOT_TPREL16_HI
:
7453 case R_PPC64_GOT_TPREL16_HA
:
7454 tls_type
= TLS_TLS
| TLS_TPREL
;
7457 case R_PPC64_GOT_DTPREL16_DS
:
7458 case R_PPC64_GOT_DTPREL16_LO_DS
:
7459 case R_PPC64_GOT_DTPREL16_HI
:
7460 case R_PPC64_GOT_DTPREL16_HA
:
7461 tls_type
= TLS_TLS
| TLS_DTPREL
;
7465 case R_PPC64_GOT16_LO
:
7466 case R_PPC64_GOT16_HI
:
7467 case R_PPC64_GOT16_HA
:
7468 case R_PPC64_GOT16_DS
:
7469 case R_PPC64_GOT16_LO_DS
:
7472 /* Relocation is to the entry for this symbol in the global
7474 struct got_entry
*ent
;
7478 if (htab
->sgot
== NULL
)
7485 if (local_got_ents
== NULL
)
7487 ent
= local_got_ents
[r_symndx
];
7490 for (; ent
!= NULL
; ent
= ent
->next
)
7491 if (ent
->addend
== rel
->r_addend
7492 && ent
->tls_type
== tls_type
)
7497 off
= ent
->got
.offset
;
7501 bfd_boolean dyn
= htab
->elf
.dynamic_sections_created
;
7502 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
)
7506 || (h
->elf_link_hash_flags
7507 & ELF_LINK_FORCED_LOCAL
))
7508 && (h
->elf_link_hash_flags
7509 & ELF_LINK_HASH_DEF_REGULAR
)))
7510 /* This is actually a static link, or it is a
7511 -Bsymbolic link and the symbol is defined
7512 locally, or the symbol was forced to be local
7513 because of a version file. */
7518 unresolved_reloc
= FALSE
;
7522 /* The offset must always be a multiple of 8. We use the
7523 least significant bit to record whether we have already
7524 processed this entry. */
7529 /* Generate relocs for the dynamic linker, except in
7530 the case of TLSLD where we'll use one entry per
7532 if ((info
->shared
|| indx
!= 0)
7533 && ent
->tls_type
!= (TLS_TLS
| TLS_GD_LD
| TLS_LD
))
7535 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
7536 + htab
->sgot
->output_offset
7538 if (ent
->tls_type
== (TLS_TLS
| TLS_GD_LD
))
7540 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
7541 outrel
.r_addend
= 0;
7542 loc
= htab
->srelgot
->contents
;
7543 loc
+= (htab
->srelgot
->reloc_count
++
7544 * sizeof (Elf64_External_Rela
));
7545 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7546 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7547 outrel
.r_offset
+= 8;
7549 else if (ent
->tls_type
== (TLS_TLS
| TLS_DTPREL
))
7550 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7551 else if (ent
->tls_type
== (TLS_TLS
| TLS_TPREL
))
7552 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
7554 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_RELATIVE
);
7556 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
7557 outrel
.r_addend
= ent
->addend
;
7559 outrel
.r_addend
+= relocation
;
7560 loc
= htab
->srelgot
->contents
;
7561 loc
+= (htab
->srelgot
->reloc_count
++
7562 * sizeof (Elf64_External_Rela
));
7563 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7566 /* Init the .got section contents if we're not
7567 emitting a reloc. */
7568 if (!(info
->shared
|| indx
!= 0))
7571 relocation
+= ent
->addend
;
7572 if ((tls_type
& TLS_TLS
) != 0)
7574 relocation
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7575 if ((tls_type
& TLS_TPREL
) != 0)
7576 relocation
+= DTP_OFFSET
- TP_OFFSET
;
7579 if ((tls_type
& TLS_GD_LD
) != 0)
7581 if ((tls_type
& TLS_LD
) != 0)
7582 relocation
= - DTP_OFFSET
;
7583 bfd_put_64 (output_bfd
, relocation
,
7584 htab
->sgot
->contents
+ off
+ 8);
7587 bfd_put_64 (output_bfd
, relocation
,
7588 htab
->sgot
->contents
+ off
);
7590 ent
->got
.offset
|= 1;
7593 if (off
>= (bfd_vma
) -2)
7596 relocation
= htab
->sgot
->output_offset
+ off
;
7598 /* TOC base (r2) is TOC start plus 0x8000. */
7599 addend
= - TOC_BASE_OFF
;
7603 case R_PPC64_PLT16_HA
:
7604 case R_PPC64_PLT16_HI
:
7605 case R_PPC64_PLT16_LO
:
7608 /* Relocation is to the entry for this symbol in the
7609 procedure linkage table. */
7611 /* Resolve a PLT reloc against a local symbol directly,
7612 without using the procedure linkage table. */
7616 /* It's possible that we didn't make a PLT entry for this
7617 symbol. This happens when statically linking PIC code,
7618 or when using -Bsymbolic. Go find a match if there is a
7620 if (htab
->splt
!= NULL
)
7622 struct plt_entry
*ent
;
7623 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7624 if (ent
->addend
== rel
->r_addend
7625 && ent
->plt
.offset
!= (bfd_vma
) -1)
7627 relocation
= (htab
->splt
->output_section
->vma
7628 + htab
->splt
->output_offset
7630 unresolved_reloc
= FALSE
;
7635 /* TOC16 relocs. We want the offset relative to the TOC base,
7636 which is the address of the start of the TOC plus 0x8000.
7637 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7640 case R_PPC64_TOC16_LO
:
7641 case R_PPC64_TOC16_HI
:
7642 case R_PPC64_TOC16_DS
:
7643 case R_PPC64_TOC16_LO_DS
:
7644 case R_PPC64_TOC16_HA
:
7645 addend
-= TOCstart
+ TOC_BASE_OFF
;
7648 /* Relocate against the beginning of the section. */
7649 case R_PPC64_SECTOFF
:
7650 case R_PPC64_SECTOFF_LO
:
7651 case R_PPC64_SECTOFF_HI
:
7652 case R_PPC64_SECTOFF_DS
:
7653 case R_PPC64_SECTOFF_LO_DS
:
7654 case R_PPC64_SECTOFF_HA
:
7655 if (sec
!= (asection
*) 0)
7656 addend
-= sec
->output_section
->vma
;
7660 case R_PPC64_REL14_BRNTAKEN
:
7661 case R_PPC64_REL14_BRTAKEN
:
7665 case R_PPC64_TPREL16
:
7666 case R_PPC64_TPREL16_LO
:
7667 case R_PPC64_TPREL16_HI
:
7668 case R_PPC64_TPREL16_HA
:
7669 case R_PPC64_TPREL16_DS
:
7670 case R_PPC64_TPREL16_LO_DS
:
7671 case R_PPC64_TPREL16_HIGHER
:
7672 case R_PPC64_TPREL16_HIGHERA
:
7673 case R_PPC64_TPREL16_HIGHEST
:
7674 case R_PPC64_TPREL16_HIGHESTA
:
7675 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7677 /* The TPREL16 relocs shouldn't really be used in shared
7678 libs as they will result in DT_TEXTREL being set, but
7679 support them anyway. */
7683 case R_PPC64_DTPREL16
:
7684 case R_PPC64_DTPREL16_LO
:
7685 case R_PPC64_DTPREL16_HI
:
7686 case R_PPC64_DTPREL16_HA
:
7687 case R_PPC64_DTPREL16_DS
:
7688 case R_PPC64_DTPREL16_LO_DS
:
7689 case R_PPC64_DTPREL16_HIGHER
:
7690 case R_PPC64_DTPREL16_HIGHERA
:
7691 case R_PPC64_DTPREL16_HIGHEST
:
7692 case R_PPC64_DTPREL16_HIGHESTA
:
7693 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7696 case R_PPC64_TPREL64
:
7697 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7700 case R_PPC64_DTPREL64
:
7701 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7704 /* Relocations that may need to be propagated if this is a
7706 case R_PPC64_DTPMOD64
:
7710 case R_PPC64_ADDR14
:
7711 case R_PPC64_ADDR14_BRNTAKEN
:
7712 case R_PPC64_ADDR14_BRTAKEN
:
7713 case R_PPC64_ADDR16
:
7714 case R_PPC64_ADDR16_DS
:
7715 case R_PPC64_ADDR16_HA
:
7716 case R_PPC64_ADDR16_HI
:
7717 case R_PPC64_ADDR16_HIGHER
:
7718 case R_PPC64_ADDR16_HIGHERA
:
7719 case R_PPC64_ADDR16_HIGHEST
:
7720 case R_PPC64_ADDR16_HIGHESTA
:
7721 case R_PPC64_ADDR16_LO
:
7722 case R_PPC64_ADDR16_LO_DS
:
7723 case R_PPC64_ADDR24
:
7724 case R_PPC64_ADDR32
:
7725 case R_PPC64_ADDR64
:
7726 case R_PPC64_UADDR16
:
7727 case R_PPC64_UADDR32
:
7728 case R_PPC64_UADDR64
:
7729 /* r_symndx will be zero only for relocs against symbols
7730 from removed linkonce sections, or sections discarded by
7738 if ((input_section
->flags
& SEC_ALLOC
) == 0)
7741 if (NO_OPD_RELOCS
&& is_opd
)
7745 && (MUST_BE_DYN_RELOC (r_type
)
7748 && (! info
->symbolic
7749 || (h
->elf_link_hash_flags
7750 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
7754 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
7755 && (((h
->elf_link_hash_flags
7756 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
7757 && (h
->elf_link_hash_flags
7758 & ELF_LINK_HASH_DEF_REGULAR
) == 0)
7759 || h
->root
.type
== bfd_link_hash_undefweak
7760 || h
->root
.type
== bfd_link_hash_undefined
)))
7762 Elf_Internal_Rela outrel
;
7763 bfd_boolean skip
, relocate
;
7767 /* When generating a dynamic object, these relocations
7768 are copied into the output file to be resolved at run
7775 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
7777 if (outrel
.r_offset
== (bfd_vma
) -1)
7779 else if (outrel
.r_offset
== (bfd_vma
) -2)
7780 skip
= TRUE
, relocate
= TRUE
;
7781 outrel
.r_offset
+= (input_section
->output_section
->vma
7782 + input_section
->output_offset
);
7783 outrel
.r_addend
= rel
->r_addend
;
7786 memset (&outrel
, 0, sizeof outrel
);
7790 && (!MUST_BE_DYN_RELOC (r_type
)
7793 || (h
->elf_link_hash_flags
7794 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
7795 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
7798 /* This symbol is local, or marked to become local,
7799 or this is an opd section reloc which must point
7800 at a local function. */
7801 outrel
.r_addend
+= relocation
;
7804 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
7806 if (is_opd
&& h
!= NULL
)
7808 /* Lie about opd entries. This case occurs
7809 when building shared libraries and we
7810 reference a function in another shared
7811 lib. The same thing happens for a weak
7812 definition in an application that's
7813 overridden by a strong definition in a
7814 shared lib. (I believe this is a generic
7815 bug in binutils handling of weak syms.)
7816 In these cases we won't use the opd
7817 entry in this lib. */
7818 unresolved_reloc
= FALSE
;
7820 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
7826 if (bfd_is_abs_section (sec
))
7828 else if (sec
== NULL
|| sec
->owner
== NULL
)
7830 bfd_set_error (bfd_error_bad_value
);
7837 osec
= sec
->output_section
;
7838 indx
= elf_section_data (osec
)->dynindx
;
7840 /* We are turning this relocation into one
7841 against a section symbol, so subtract out
7842 the output section's address but not the
7843 offset of the input section in the output
7845 outrel
.r_addend
-= osec
->vma
;
7848 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
7852 sreloc
= elf_section_data (input_section
)->sreloc
;
7856 loc
= sreloc
->contents
;
7857 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
7858 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7860 /* If this reloc is against an external symbol, it will
7861 be computed at runtime, so there's no need to do
7869 case R_PPC64_GLOB_DAT
:
7870 case R_PPC64_JMP_SLOT
:
7871 case R_PPC64_RELATIVE
:
7872 /* We shouldn't ever see these dynamic relocs in relocatable
7876 case R_PPC64_PLTGOT16
:
7877 case R_PPC64_PLTGOT16_DS
:
7878 case R_PPC64_PLTGOT16_HA
:
7879 case R_PPC64_PLTGOT16_HI
:
7880 case R_PPC64_PLTGOT16_LO
:
7881 case R_PPC64_PLTGOT16_LO_DS
:
7882 case R_PPC64_PLTREL32
:
7883 case R_PPC64_PLTREL64
:
7884 /* These ones haven't been implemented yet. */
7886 (*_bfd_error_handler
)
7887 (_("%s: Relocation %s is not supported for symbol %s."),
7888 bfd_archive_filename (input_bfd
),
7889 ppc64_elf_howto_table
[(int) r_type
]->name
, sym_name
);
7891 bfd_set_error (bfd_error_invalid_operation
);
7896 /* Do any further special processing. */
7902 case R_PPC64_ADDR16_HA
:
7903 case R_PPC64_ADDR16_HIGHERA
:
7904 case R_PPC64_ADDR16_HIGHESTA
:
7905 case R_PPC64_GOT16_HA
:
7906 case R_PPC64_PLTGOT16_HA
:
7907 case R_PPC64_PLT16_HA
:
7908 case R_PPC64_TOC16_HA
:
7909 case R_PPC64_SECTOFF_HA
:
7910 case R_PPC64_TPREL16_HA
:
7911 case R_PPC64_DTPREL16_HA
:
7912 case R_PPC64_GOT_TLSGD16_HA
:
7913 case R_PPC64_GOT_TLSLD16_HA
:
7914 case R_PPC64_GOT_TPREL16_HA
:
7915 case R_PPC64_GOT_DTPREL16_HA
:
7916 case R_PPC64_TPREL16_HIGHER
:
7917 case R_PPC64_TPREL16_HIGHERA
:
7918 case R_PPC64_TPREL16_HIGHEST
:
7919 case R_PPC64_TPREL16_HIGHESTA
:
7920 case R_PPC64_DTPREL16_HIGHER
:
7921 case R_PPC64_DTPREL16_HIGHERA
:
7922 case R_PPC64_DTPREL16_HIGHEST
:
7923 case R_PPC64_DTPREL16_HIGHESTA
:
7924 /* It's just possible that this symbol is a weak symbol
7925 that's not actually defined anywhere. In that case,
7926 'sec' would be NULL, and we should leave the symbol
7927 alone (it will be set to zero elsewhere in the link). */
7929 /* Add 0x10000 if sign bit in 0:15 is set. */
7930 addend
+= ((relocation
+ addend
) & 0x8000) << 1;
7933 case R_PPC64_ADDR16_DS
:
7934 case R_PPC64_ADDR16_LO_DS
:
7935 case R_PPC64_GOT16_DS
:
7936 case R_PPC64_GOT16_LO_DS
:
7937 case R_PPC64_PLT16_LO_DS
:
7938 case R_PPC64_SECTOFF_DS
:
7939 case R_PPC64_SECTOFF_LO_DS
:
7940 case R_PPC64_TOC16_DS
:
7941 case R_PPC64_TOC16_LO_DS
:
7942 case R_PPC64_PLTGOT16_DS
:
7943 case R_PPC64_PLTGOT16_LO_DS
:
7944 case R_PPC64_GOT_TPREL16_DS
:
7945 case R_PPC64_GOT_TPREL16_LO_DS
:
7946 case R_PPC64_GOT_DTPREL16_DS
:
7947 case R_PPC64_GOT_DTPREL16_LO_DS
:
7948 case R_PPC64_TPREL16_DS
:
7949 case R_PPC64_TPREL16_LO_DS
:
7950 case R_PPC64_DTPREL16_DS
:
7951 case R_PPC64_DTPREL16_LO_DS
:
7952 if (((relocation
+ addend
) & 3) != 0)
7954 (*_bfd_error_handler
)
7955 (_("%s: error: relocation %s not a multiple of 4"),
7956 bfd_archive_filename (input_bfd
),
7957 ppc64_elf_howto_table
[(int) r_type
]->name
);
7958 bfd_set_error (bfd_error_bad_value
);
7965 case R_PPC64_REL14_BRNTAKEN
:
7966 case R_PPC64_REL14_BRTAKEN
:
7967 max_br_offset
= 1 << 15;
7971 max_br_offset
= 1 << 25;
7974 /* If the branch is out of reach, then redirect the
7975 call to the local stub for this function. */
7976 from
= (rel
->r_offset
7977 + input_section
->output_offset
7978 + input_section
->output_section
->vma
);
7979 if (relocation
+ addend
- from
+ max_br_offset
>= 2 * max_br_offset
7980 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, h
,
7981 rel
, htab
)) != NULL
)
7983 /* Munge up the value and addend so that we call the stub
7984 rather than the procedure directly. */
7985 relocation
= (stub_entry
->stub_offset
7986 + stub_entry
->stub_sec
->output_offset
7987 + stub_entry
->stub_sec
->output_section
->vma
);
7993 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
7994 because such sections are not SEC_ALLOC and thus ld.so will
7995 not process them. */
7996 if (unresolved_reloc
7997 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
7998 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
8000 (*_bfd_error_handler
)
8001 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8002 bfd_archive_filename (input_bfd
),
8003 bfd_get_section_name (input_bfd
, input_section
),
8004 (long) rel
->r_offset
,
8005 h
->root
.root
.string
);
8009 r
= _bfd_final_link_relocate (ppc64_elf_howto_table
[(int) r_type
],
8017 if (r
!= bfd_reloc_ok
)
8023 if (h
->root
.type
== bfd_link_hash_undefweak
8024 && ppc64_elf_howto_table
[(int) r_type
]->pc_relative
)
8026 /* Assume this is a call protected by other code that
8027 detects the symbol is undefined. If this is the case,
8028 we can safely ignore the overflow. If not, the
8029 program is hosed anyway, and a little warning isn't
8035 name
= h
->root
.root
.string
;
8039 name
= bfd_elf_local_sym_name (input_bfd
, sym
);
8044 if (r
== bfd_reloc_overflow
)
8048 if (!((*info
->callbacks
->reloc_overflow
)
8049 (info
, name
, ppc64_elf_howto_table
[(int) r_type
]->name
,
8050 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
)))
8055 (*_bfd_error_handler
)
8056 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8057 bfd_archive_filename (input_bfd
),
8058 bfd_get_section_name (input_bfd
, input_section
),
8059 (long) rel
->r_offset
, name
, (int) r
);
8068 /* Finish up dynamic symbol handling. We set the contents of various
8069 dynamic sections here. */
8072 ppc64_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8074 struct bfd_link_info
*info
;
8075 struct elf_link_hash_entry
*h
;
8076 Elf_Internal_Sym
*sym
;
8078 struct ppc_link_hash_table
*htab
;
8081 htab
= ppc_hash_table (info
);
8082 dynobj
= htab
->elf
.dynobj
;
8084 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
8086 struct plt_entry
*ent
;
8087 Elf_Internal_Rela rela
;
8090 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8091 if (ent
->plt
.offset
!= (bfd_vma
) -1)
8093 /* This symbol has an entry in the procedure linkage
8094 table. Set it up. */
8096 if (htab
->splt
== NULL
8097 || htab
->srelplt
== NULL
8098 || htab
->sglink
== NULL
)
8101 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8102 fill in the PLT entry. */
8104 rela
.r_offset
= (htab
->splt
->output_section
->vma
8105 + htab
->splt
->output_offset
8107 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
8108 rela
.r_addend
= ent
->addend
;
8110 loc
= htab
->srelplt
->contents
;
8111 loc
+= ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
8112 * sizeof (Elf64_External_Rela
));
8113 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8117 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
8119 Elf_Internal_Rela rela
;
8122 /* This symbol needs a copy reloc. Set it up. */
8124 if (h
->dynindx
== -1
8125 || (h
->root
.type
!= bfd_link_hash_defined
8126 && h
->root
.type
!= bfd_link_hash_defweak
)
8127 || htab
->srelbss
== NULL
)
8130 rela
.r_offset
= (h
->root
.u
.def
.value
8131 + h
->root
.u
.def
.section
->output_section
->vma
8132 + h
->root
.u
.def
.section
->output_offset
);
8133 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
8135 loc
= htab
->srelbss
->contents
;
8136 loc
+= htab
->srelbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8137 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8140 /* Mark some specially defined symbols as absolute. */
8141 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0)
8142 sym
->st_shndx
= SHN_ABS
;
8147 /* Used to decide how to sort relocs in an optimal manner for the
8148 dynamic linker, before writing them out. */
8150 static enum elf_reloc_type_class
8151 ppc64_elf_reloc_type_class (rela
)
8152 const Elf_Internal_Rela
*rela
;
8154 enum elf_ppc64_reloc_type r_type
;
8156 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rela
->r_info
);
8159 case R_PPC64_RELATIVE
:
8160 return reloc_class_relative
;
8161 case R_PPC64_JMP_SLOT
:
8162 return reloc_class_plt
;
8164 return reloc_class_copy
;
8166 return reloc_class_normal
;
8170 /* Finish up the dynamic sections. */
8173 ppc64_elf_finish_dynamic_sections (output_bfd
, info
)
8175 struct bfd_link_info
*info
;
8177 struct ppc_link_hash_table
*htab
;
8181 htab
= ppc_hash_table (info
);
8182 dynobj
= htab
->elf
.dynobj
;
8183 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8185 if (htab
->elf
.dynamic_sections_created
)
8187 Elf64_External_Dyn
*dyncon
, *dynconend
;
8189 if (sdyn
== NULL
|| htab
->sgot
== NULL
)
8192 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
8193 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
8194 for (; dyncon
< dynconend
; dyncon
++)
8196 Elf_Internal_Dyn dyn
;
8199 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
8206 case DT_PPC64_GLINK
:
8208 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8212 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8215 dyn
.d_un
.d_ptr
= s
->vma
;
8218 case DT_PPC64_OPDSZ
:
8219 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8222 dyn
.d_un
.d_val
= s
->_raw_size
;
8227 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8232 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8236 dyn
.d_un
.d_val
= htab
->srelplt
->_raw_size
;
8240 /* Don't count procedure linkage table relocs in the
8241 overall reloc count. */
8245 dyn
.d_un
.d_val
-= s
->_raw_size
;
8249 /* We may not be using the standard ELF linker script.
8250 If .rela.plt is the first .rela section, we adjust
8251 DT_RELA to not include it. */
8255 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
8257 dyn
.d_un
.d_ptr
+= s
->_raw_size
;
8261 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
8265 if (htab
->sgot
!= NULL
&& htab
->sgot
->_raw_size
!= 0)
8267 /* Fill in the first entry in the global offset table.
8268 We use it to hold the link-time TOCbase. */
8269 bfd_put_64 (output_bfd
,
8270 elf_gp (output_bfd
) + TOC_BASE_OFF
,
8271 htab
->sgot
->contents
);
8273 /* Set .got entry size. */
8274 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
8277 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
8279 /* Set .plt entry size. */
8280 elf_section_data (htab
->splt
->output_section
)->this_hdr
.sh_entsize
8287 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8288 #define TARGET_LITTLE_NAME "elf64-powerpcle"
8289 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8290 #define TARGET_BIG_NAME "elf64-powerpc"
8291 #define ELF_ARCH bfd_arch_powerpc
8292 #define ELF_MACHINE_CODE EM_PPC64
8293 #define ELF_MAXPAGESIZE 0x10000
8294 #define elf_info_to_howto ppc64_elf_info_to_howto
8296 #ifdef EM_CYGNUS_POWERPC
8297 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8301 #define ELF_MACHINE_ALT2 EM_PPC_OLD
8304 #define elf_backend_want_got_sym 0
8305 #define elf_backend_want_plt_sym 0
8306 #define elf_backend_plt_alignment 3
8307 #define elf_backend_plt_not_loaded 1
8308 #define elf_backend_got_symbol_offset 0
8309 #define elf_backend_got_header_size 8
8310 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
8311 #define elf_backend_can_gc_sections 1
8312 #define elf_backend_can_refcount 1
8313 #define elf_backend_rela_normal 1
8315 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
8316 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
8317 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
8318 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
8319 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
8321 #define elf_backend_object_p ppc64_elf_object_p
8322 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8323 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8324 #define elf_backend_check_relocs ppc64_elf_check_relocs
8325 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8326 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8327 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
8328 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
8329 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
8330 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
8331 #define elf_backend_relocate_section ppc64_elf_relocate_section
8332 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8333 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8334 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
8336 #include "elf64-target.h"