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
;
2506 /* The symbol addend that we'll be placing in the GOT. */
2509 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2512 bfd_signed_vma refcount
;
2516 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2517 TLS_TPREL or TLS_DTPREL for tls entries. */
2521 /* The same for PLT. */
2524 struct plt_entry
*next
;
2530 bfd_signed_vma refcount
;
2535 /* Of those relocs that might be copied as dynamic relocs, this macro
2536 selects those that must be copied when linking a shared library,
2537 even when the symbol is local. */
2539 #define MUST_BE_DYN_RELOC(RTYPE) \
2540 ((RTYPE) != R_PPC64_REL32 \
2541 && (RTYPE) != R_PPC64_REL64 \
2542 && (RTYPE) != R_PPC64_REL30)
2544 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2545 copying dynamic variables from a shared lib into an app's dynbss
2546 section, and instead use a dynamic relocation to point into the
2548 #define ELIMINATE_COPY_RELOCS 1
2550 /* Section name for stubs is the associated section name plus this
2552 #define STUB_SUFFIX ".stub"
2555 ppc_stub_long_branch:
2556 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2557 destination, but a 24 bit branch in a stub section will reach.
2560 ppc_stub_plt_branch:
2561 Similar to the above, but a 24 bit branch in the stub section won't
2562 reach its destination.
2563 . addis %r12,%r2,xxx@toc@ha
2564 . ld %r11,xxx@toc@l(%r12)
2569 Used to call a function in a shared library.
2570 . addis %r12,%r2,xxx@toc@ha
2572 . ld %r11,xxx+0@toc@l(%r12)
2573 . ld %r2,xxx+8@toc@l(%r12)
2575 . ld %r11,xxx+16@toc@l(%r12)
2579 enum ppc_stub_type
{
2581 ppc_stub_long_branch
,
2582 ppc_stub_plt_branch
,
2586 struct ppc_stub_hash_entry
{
2588 /* Base hash table entry structure. */
2589 struct bfd_hash_entry root
;
2591 /* The stub section. */
2594 /* Offset within stub_sec of the beginning of this stub. */
2595 bfd_vma stub_offset
;
2597 /* Given the symbol's value and its section we can determine its final
2598 value when building the stubs (so the stub knows where to jump. */
2599 bfd_vma target_value
;
2600 asection
*target_section
;
2602 enum ppc_stub_type stub_type
;
2604 /* The symbol table entry, if any, that this was derived from. */
2605 struct ppc_link_hash_entry
*h
;
2607 /* And the reloc addend that this was derived from. */
2610 /* Where this stub is being called from, or, in the case of combined
2611 stub sections, the first input section in the group. */
2615 struct ppc_branch_hash_entry
{
2617 /* Base hash table entry structure. */
2618 struct bfd_hash_entry root
;
2620 /* Offset within .branch_lt. */
2621 unsigned int offset
;
2623 /* Generation marker. */
2627 struct ppc_link_hash_entry
2629 struct elf_link_hash_entry elf
;
2631 /* A pointer to the most recently used stub hash entry against this
2633 struct ppc_stub_hash_entry
*stub_cache
;
2635 /* Track dynamic relocs copied for this symbol. */
2636 struct ppc_dyn_relocs
*dyn_relocs
;
2638 /* Link between function code and descriptor symbols. */
2639 struct elf_link_hash_entry
*oh
;
2641 /* Flag function code and descriptor symbols. */
2642 unsigned int is_func
:1;
2643 unsigned int is_func_descriptor
:1;
2644 unsigned int is_entry
:1;
2646 /* Contexts in which symbol is used in the GOT (or TOC).
2647 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2648 corresponding relocs are encountered during check_relocs.
2649 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2650 indicate the corresponding GOT entry type is not needed.
2651 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2652 a TPREL one. We use a separate flag rather than setting TPREL
2653 just for convenience in distinguishing the two cases. */
2654 #define TLS_GD 1 /* GD reloc. */
2655 #define TLS_LD 2 /* LD reloc. */
2656 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2657 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2658 #define TLS_TLS 16 /* Any TLS reloc. */
2659 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2660 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2664 /* ppc64 ELF linker hash table. */
2666 struct ppc_link_hash_table
2668 struct elf_link_hash_table elf
;
2670 /* The stub hash table. */
2671 struct bfd_hash_table stub_hash_table
;
2673 /* Another hash table for plt_branch stubs. */
2674 struct bfd_hash_table branch_hash_table
;
2676 /* Linker stub bfd. */
2679 /* Linker call-backs. */
2680 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
2681 void (*layout_sections_again
) PARAMS ((void));
2683 /* Array to keep track of which stub sections have been created, and
2684 information on stub grouping. */
2686 /* This is the section to which stubs in the group will be attached. */
2688 /* The stub section. */
2692 /* Assorted information used by ppc64_elf_size_stubs. */
2694 asection
**input_list
;
2696 /* Short-cuts to get to dynamic linker sections. */
2708 /* Short-cut to first output tls section. */
2711 /* Shortcut to .__tls_get_addr. */
2712 struct elf_link_hash_entry
*tls_get_addr
;
2714 /* TLS local dynamic got entry handling. */
2716 bfd_signed_vma refcount
;
2721 unsigned int stub_error
;
2723 /* Flag set when small branches are detected. Used to
2724 select suitable defaults for the stub group size. */
2725 unsigned int has_14bit_branch
;
2727 /* Set if we detect a reference undefined weak symbol. */
2728 unsigned int have_undefweak
;
2730 /* Incremented every time we size stubs. */
2731 unsigned int stub_iteration
;
2733 /* Small local sym to section mapping cache. */
2734 struct sym_sec_cache sym_sec
;
2737 static struct bfd_hash_entry
*stub_hash_newfunc
2738 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2739 static struct bfd_hash_entry
*branch_hash_newfunc
2740 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2741 static struct bfd_hash_entry
*link_hash_newfunc
2742 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2743 static struct bfd_link_hash_table
*ppc64_elf_link_hash_table_create
2745 static void ppc64_elf_link_hash_table_free
2746 PARAMS ((struct bfd_link_hash_table
*));
2747 static char *ppc_stub_name
2748 PARAMS ((const asection
*, const asection
*,
2749 const struct ppc_link_hash_entry
*, const Elf_Internal_Rela
*));
2750 static struct ppc_stub_hash_entry
*ppc_get_stub_entry
2751 PARAMS ((const asection
*, const asection
*, struct elf_link_hash_entry
*,
2752 const Elf_Internal_Rela
*, struct ppc_link_hash_table
*));
2753 static struct ppc_stub_hash_entry
*ppc_add_stub
2754 PARAMS ((const char *, asection
*, struct ppc_link_hash_table
*));
2755 static bfd_boolean create_linkage_sections
2756 PARAMS ((bfd
*, struct bfd_link_info
*));
2757 static bfd_boolean create_got_section
2758 PARAMS ((bfd
*, struct bfd_link_info
*));
2759 static bfd_boolean ppc64_elf_create_dynamic_sections
2760 PARAMS ((bfd
*, struct bfd_link_info
*));
2761 static void ppc64_elf_copy_indirect_symbol
2762 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
2763 struct elf_link_hash_entry
*));
2764 static bfd_boolean update_local_sym_info
2765 PARAMS ((bfd
*, Elf_Internal_Shdr
*, unsigned long, bfd_vma
, int));
2766 static bfd_boolean update_plt_info
2767 PARAMS ((bfd
*, struct ppc_link_hash_entry
*, bfd_vma
));
2768 static bfd_boolean ppc64_elf_check_relocs
2769 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2770 const Elf_Internal_Rela
*));
2771 static asection
* ppc64_elf_gc_mark_hook
2772 PARAMS ((asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
2773 struct elf_link_hash_entry
*, Elf_Internal_Sym
*));
2774 static bfd_boolean ppc64_elf_gc_sweep_hook
2775 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2776 const Elf_Internal_Rela
*));
2777 static bfd_boolean func_desc_adjust
2778 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2779 static bfd_boolean ppc64_elf_func_desc_adjust
2780 PARAMS ((bfd
*, struct bfd_link_info
*));
2781 static bfd_boolean ppc64_elf_adjust_dynamic_symbol
2782 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*));
2783 static void ppc64_elf_hide_symbol
2784 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
2785 static bfd_boolean get_sym_h
2786 PARAMS ((struct elf_link_hash_entry
**, Elf_Internal_Sym
**, asection
**,
2787 char **, Elf_Internal_Sym
**, unsigned long, bfd
*));
2788 static int get_tls_mask
2789 PARAMS ((char **, Elf_Internal_Sym
**, const Elf_Internal_Rela
*, bfd
*));
2790 static bfd_boolean allocate_dynrelocs
2791 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2792 static bfd_boolean readonly_dynrelocs
2793 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2794 static enum elf_reloc_type_class ppc64_elf_reloc_type_class
2795 PARAMS ((const Elf_Internal_Rela
*));
2796 static bfd_boolean ppc64_elf_size_dynamic_sections
2797 PARAMS ((bfd
*, struct bfd_link_info
*));
2798 static enum ppc_stub_type ppc_type_of_stub
2799 PARAMS ((asection
*, const Elf_Internal_Rela
*,
2800 struct ppc_link_hash_entry
**, bfd_vma
));
2801 static bfd_byte
*build_plt_stub
2802 PARAMS ((bfd
*, bfd_byte
*, int, int));
2803 static bfd_boolean ppc_build_one_stub
2804 PARAMS ((struct bfd_hash_entry
*, PTR
));
2805 static bfd_boolean ppc_size_one_stub
2806 PARAMS ((struct bfd_hash_entry
*, PTR
));
2807 static void group_sections
2808 PARAMS ((struct ppc_link_hash_table
*, bfd_size_type
, bfd_boolean
));
2809 static bfd_boolean ppc64_elf_relocate_section
2810 PARAMS ((bfd
*, struct bfd_link_info
*info
, bfd
*, asection
*, bfd_byte
*,
2811 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
2813 static bfd_boolean ppc64_elf_finish_dynamic_symbol
2814 PARAMS ((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
2815 Elf_Internal_Sym
*));
2816 static bfd_boolean ppc64_elf_finish_dynamic_sections
2817 PARAMS ((bfd
*, struct bfd_link_info
*));
2819 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2821 #define ppc_hash_table(p) \
2822 ((struct ppc_link_hash_table *) ((p)->hash))
2824 #define ppc_stub_hash_lookup(table, string, create, copy) \
2825 ((struct ppc_stub_hash_entry *) \
2826 bfd_hash_lookup ((table), (string), (create), (copy)))
2828 #define ppc_branch_hash_lookup(table, string, create, copy) \
2829 ((struct ppc_branch_hash_entry *) \
2830 bfd_hash_lookup ((table), (string), (create), (copy)))
2832 /* Create an entry in the stub hash table. */
2834 static struct bfd_hash_entry
*
2835 stub_hash_newfunc (entry
, table
, string
)
2836 struct bfd_hash_entry
*entry
;
2837 struct bfd_hash_table
*table
;
2840 /* Allocate the structure if it has not already been allocated by a
2844 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_stub_hash_entry
));
2849 /* Call the allocation method of the superclass. */
2850 entry
= bfd_hash_newfunc (entry
, table
, string
);
2853 struct ppc_stub_hash_entry
*eh
;
2855 /* Initialize the local fields. */
2856 eh
= (struct ppc_stub_hash_entry
*) entry
;
2857 eh
->stub_sec
= NULL
;
2858 eh
->stub_offset
= 0;
2859 eh
->target_value
= 0;
2860 eh
->target_section
= NULL
;
2861 eh
->stub_type
= ppc_stub_none
;
2869 /* Create an entry in the branch hash table. */
2871 static struct bfd_hash_entry
*
2872 branch_hash_newfunc (entry
, table
, string
)
2873 struct bfd_hash_entry
*entry
;
2874 struct bfd_hash_table
*table
;
2877 /* Allocate the structure if it has not already been allocated by a
2881 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_branch_hash_entry
));
2886 /* Call the allocation method of the superclass. */
2887 entry
= bfd_hash_newfunc (entry
, table
, string
);
2890 struct ppc_branch_hash_entry
*eh
;
2892 /* Initialize the local fields. */
2893 eh
= (struct ppc_branch_hash_entry
*) entry
;
2901 /* Create an entry in a ppc64 ELF linker hash table. */
2903 static struct bfd_hash_entry
*
2904 link_hash_newfunc (entry
, table
, string
)
2905 struct bfd_hash_entry
*entry
;
2906 struct bfd_hash_table
*table
;
2909 /* Allocate the structure if it has not already been allocated by a
2913 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_link_hash_entry
));
2918 /* Call the allocation method of the superclass. */
2919 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
2922 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) entry
;
2924 eh
->stub_cache
= NULL
;
2925 eh
->dyn_relocs
= NULL
;
2928 eh
->is_func_descriptor
= 0;
2936 /* Create a ppc64 ELF linker hash table. */
2938 static struct bfd_link_hash_table
*
2939 ppc64_elf_link_hash_table_create (abfd
)
2942 struct ppc_link_hash_table
*htab
;
2943 bfd_size_type amt
= sizeof (struct ppc_link_hash_table
);
2945 htab
= (struct ppc_link_hash_table
*) bfd_malloc (amt
);
2949 if (! _bfd_elf_link_hash_table_init (&htab
->elf
, abfd
, link_hash_newfunc
))
2955 /* Init the stub hash table too. */
2956 if (!bfd_hash_table_init (&htab
->stub_hash_table
, stub_hash_newfunc
))
2959 /* And the branch hash table. */
2960 if (!bfd_hash_table_init (&htab
->branch_hash_table
, branch_hash_newfunc
))
2963 htab
->stub_bfd
= NULL
;
2964 htab
->add_stub_section
= NULL
;
2965 htab
->layout_sections_again
= NULL
;
2966 htab
->stub_group
= NULL
;
2968 htab
->srelgot
= NULL
;
2970 htab
->srelplt
= NULL
;
2971 htab
->sdynbss
= NULL
;
2972 htab
->srelbss
= NULL
;
2973 htab
->sglink
= NULL
;
2976 htab
->srelbrlt
= NULL
;
2977 htab
->tls_sec
= NULL
;
2978 htab
->tls_get_addr
= NULL
;
2979 htab
->tlsld_got
.refcount
= 0;
2980 htab
->stub_error
= 0;
2981 htab
->has_14bit_branch
= 0;
2982 htab
->have_undefweak
= 0;
2983 htab
->stub_iteration
= 0;
2984 htab
->sym_sec
.abfd
= NULL
;
2985 /* Initializing two fields of the union is just cosmetic. We really
2986 only care about glist, but when compiled on a 32-bit host the
2987 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2988 debugger inspection of these fields look nicer. */
2989 htab
->elf
.init_refcount
.refcount
= 0;
2990 htab
->elf
.init_refcount
.glist
= NULL
;
2991 htab
->elf
.init_offset
.offset
= 0;
2992 htab
->elf
.init_offset
.glist
= NULL
;
2994 return &htab
->elf
.root
;
2997 /* Free the derived linker hash table. */
3000 ppc64_elf_link_hash_table_free (hash
)
3001 struct bfd_link_hash_table
*hash
;
3003 struct ppc_link_hash_table
*ret
= (struct ppc_link_hash_table
*) hash
;
3005 bfd_hash_table_free (&ret
->stub_hash_table
);
3006 bfd_hash_table_free (&ret
->branch_hash_table
);
3007 _bfd_generic_link_hash_table_free (hash
);
3010 /* Build a name for an entry in the stub hash table. */
3013 ppc_stub_name (input_section
, sym_sec
, h
, rel
)
3014 const asection
*input_section
;
3015 const asection
*sym_sec
;
3016 const struct ppc_link_hash_entry
*h
;
3017 const Elf_Internal_Rela
*rel
;
3022 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3023 offsets from a sym as a branch target? In fact, we could
3024 probably assume the addend is always zero. */
3025 BFD_ASSERT (((int) rel
->r_addend
& 0xffffffff) == rel
->r_addend
);
3029 len
= 8 + 1 + strlen (h
->elf
.root
.root
.string
) + 1 + 8 + 1;
3030 stub_name
= bfd_malloc (len
);
3031 if (stub_name
!= NULL
)
3033 sprintf (stub_name
, "%08x_%s+%x",
3034 input_section
->id
& 0xffffffff,
3035 h
->elf
.root
.root
.string
,
3036 (int) rel
->r_addend
& 0xffffffff);
3041 len
= 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
3042 stub_name
= bfd_malloc (len
);
3043 if (stub_name
!= NULL
)
3045 sprintf (stub_name
, "%08x_%x:%x+%x",
3046 input_section
->id
& 0xffffffff,
3047 sym_sec
->id
& 0xffffffff,
3048 (int) ELF64_R_SYM (rel
->r_info
) & 0xffffffff,
3049 (int) rel
->r_addend
& 0xffffffff);
3055 /* Look up an entry in the stub hash. Stub entries are cached because
3056 creating the stub name takes a bit of time. */
3058 static struct ppc_stub_hash_entry
*
3059 ppc_get_stub_entry (input_section
, sym_sec
, hash
, rel
, htab
)
3060 const asection
*input_section
;
3061 const asection
*sym_sec
;
3062 struct elf_link_hash_entry
*hash
;
3063 const Elf_Internal_Rela
*rel
;
3064 struct ppc_link_hash_table
*htab
;
3066 struct ppc_stub_hash_entry
*stub_entry
;
3067 struct ppc_link_hash_entry
*h
= (struct ppc_link_hash_entry
*) hash
;
3068 const asection
*id_sec
;
3070 /* If this input section is part of a group of sections sharing one
3071 stub section, then use the id of the first section in the group.
3072 Stub names need to include a section id, as there may well be
3073 more than one stub used to reach say, printf, and we need to
3074 distinguish between them. */
3075 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
3077 if (h
!= NULL
&& h
->stub_cache
!= NULL
3078 && h
->stub_cache
->h
== h
3079 && h
->stub_cache
->id_sec
== id_sec
)
3081 stub_entry
= h
->stub_cache
;
3087 stub_name
= ppc_stub_name (id_sec
, sym_sec
, h
, rel
);
3088 if (stub_name
== NULL
)
3091 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
3092 stub_name
, FALSE
, FALSE
);
3094 h
->stub_cache
= stub_entry
;
3102 /* Add a new stub entry to the stub hash. Not all fields of the new
3103 stub entry are initialised. */
3105 static struct ppc_stub_hash_entry
*
3106 ppc_add_stub (stub_name
, section
, htab
)
3107 const char *stub_name
;
3109 struct ppc_link_hash_table
*htab
;
3113 struct ppc_stub_hash_entry
*stub_entry
;
3115 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
3116 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
3117 if (stub_sec
== NULL
)
3119 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
3120 if (stub_sec
== NULL
)
3126 namelen
= strlen (link_sec
->name
);
3127 len
= namelen
+ sizeof (STUB_SUFFIX
);
3128 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
3132 memcpy (s_name
, link_sec
->name
, namelen
);
3133 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
3134 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
3135 if (stub_sec
== NULL
)
3137 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
3139 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
3142 /* Enter this entry into the linker stub hash table. */
3143 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
, stub_name
,
3145 if (stub_entry
== NULL
)
3147 (*_bfd_error_handler
) (_("%s: cannot create stub entry %s"),
3148 bfd_archive_filename (section
->owner
),
3153 stub_entry
->stub_sec
= stub_sec
;
3154 stub_entry
->stub_offset
= 0;
3155 stub_entry
->id_sec
= link_sec
;
3159 /* Create sections for linker generated code. */
3162 create_linkage_sections (dynobj
, info
)
3164 struct bfd_link_info
*info
;
3166 struct ppc_link_hash_table
*htab
;
3169 htab
= ppc_hash_table (info
);
3171 /* Create .sfpr for code to save and restore fp regs. */
3172 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
3173 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3174 htab
->sfpr
= bfd_make_section_anyway (dynobj
, ".sfpr");
3175 if (htab
->sfpr
== NULL
3176 || ! bfd_set_section_flags (dynobj
, htab
->sfpr
, flags
)
3177 || ! bfd_set_section_alignment (dynobj
, htab
->sfpr
, 2))
3180 /* Create .glink for lazy dynamic linking support. */
3181 htab
->sglink
= bfd_make_section_anyway (dynobj
, ".glink");
3182 if (htab
->sglink
== NULL
3183 || ! bfd_set_section_flags (dynobj
, htab
->sglink
, flags
)
3184 || ! bfd_set_section_alignment (dynobj
, htab
->sglink
, 2))
3187 /* Create .branch_lt for plt_branch stubs. */
3188 flags
= (SEC_ALLOC
| SEC_LOAD
3189 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3190 htab
->sbrlt
= bfd_make_section_anyway (dynobj
, ".branch_lt");
3191 if (htab
->sbrlt
== NULL
3192 || ! bfd_set_section_flags (dynobj
, htab
->sbrlt
, flags
)
3193 || ! bfd_set_section_alignment (dynobj
, htab
->sbrlt
, 3))
3198 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
3199 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3200 htab
->srelbrlt
= bfd_make_section_anyway (dynobj
, ".rela.branch_lt");
3202 || ! bfd_set_section_flags (dynobj
, htab
->srelbrlt
, flags
)
3203 || ! bfd_set_section_alignment (dynobj
, htab
->srelbrlt
, 3))
3209 /* Create .got and .rela.got sections in DYNOBJ, and set up
3210 shortcuts to them in our hash table. */
3213 create_got_section (dynobj
, info
)
3215 struct bfd_link_info
*info
;
3217 struct ppc_link_hash_table
*htab
;
3219 if (! _bfd_elf_create_got_section (dynobj
, info
))
3222 htab
= ppc_hash_table (info
);
3223 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3227 htab
->srelgot
= bfd_make_section (dynobj
, ".rela.got");
3229 || ! bfd_set_section_flags (dynobj
, htab
->srelgot
,
3230 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3231 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3233 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
, 3))
3238 /* Create the dynamic sections, and set up shortcuts. */
3241 ppc64_elf_create_dynamic_sections (dynobj
, info
)
3243 struct bfd_link_info
*info
;
3245 struct ppc_link_hash_table
*htab
;
3247 htab
= ppc_hash_table (info
);
3248 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
3251 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
3254 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
3255 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3256 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
3258 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3260 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
3261 || (!info
->shared
&& !htab
->srelbss
))
3267 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3270 ppc64_elf_copy_indirect_symbol (bed
, dir
, ind
)
3271 struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
3272 struct elf_link_hash_entry
*dir
, *ind
;
3274 struct ppc_link_hash_entry
*edir
, *eind
;
3276 edir
= (struct ppc_link_hash_entry
*) dir
;
3277 eind
= (struct ppc_link_hash_entry
*) ind
;
3279 /* Copy over any dynamic relocs we may have on the indirect sym. */
3280 if (eind
->dyn_relocs
!= NULL
)
3282 if (edir
->dyn_relocs
!= NULL
)
3284 struct ppc_dyn_relocs
**pp
;
3285 struct ppc_dyn_relocs
*p
;
3287 if (eind
->elf
.root
.type
== bfd_link_hash_indirect
)
3290 /* Add reloc counts against the weak sym to the strong sym
3291 list. Merge any entries against the same section. */
3292 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3294 struct ppc_dyn_relocs
*q
;
3296 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3297 if (q
->sec
== p
->sec
)
3299 q
->pc_count
+= p
->pc_count
;
3300 q
->count
+= p
->count
;
3307 *pp
= edir
->dyn_relocs
;
3310 edir
->dyn_relocs
= eind
->dyn_relocs
;
3311 eind
->dyn_relocs
= NULL
;
3314 edir
->is_func
|= eind
->is_func
;
3315 edir
->is_func_descriptor
|= eind
->is_func_descriptor
;
3316 edir
->is_entry
|= eind
->is_entry
;
3317 edir
->tls_mask
|= eind
->tls_mask
;
3319 /* Copy down any references that we may have already seen to the
3320 symbol which just became indirect. */
3321 edir
->elf
.elf_link_hash_flags
|=
3322 (eind
->elf
.elf_link_hash_flags
3323 & (ELF_LINK_HASH_REF_DYNAMIC
3324 | ELF_LINK_HASH_REF_REGULAR
3325 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
3326 | ELF_LINK_NON_GOT_REF
));
3328 /* If we were called to copy over info for a weak sym, that's all. */
3329 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3332 /* Copy over got entries. */
3333 if (eind
->elf
.got
.glist
!= NULL
)
3335 if (edir
->elf
.got
.glist
!= NULL
)
3337 struct got_entry
**entp
;
3338 struct got_entry
*ent
;
3340 for (entp
= &eind
->elf
.got
.glist
; (ent
= *entp
) != NULL
; )
3342 struct got_entry
*dent
;
3344 for (dent
= edir
->elf
.got
.glist
; dent
!= NULL
; dent
= dent
->next
)
3345 if (dent
->addend
== ent
->addend
3346 && dent
->tls_type
== ent
->tls_type
)
3348 dent
->got
.refcount
+= ent
->got
.refcount
;
3355 *entp
= edir
->elf
.got
.glist
;
3358 edir
->elf
.got
.glist
= eind
->elf
.got
.glist
;
3359 eind
->elf
.got
.glist
= NULL
;
3362 /* And plt entries. */
3363 if (eind
->elf
.plt
.plist
!= NULL
)
3365 if (edir
->elf
.plt
.plist
!= NULL
)
3367 struct plt_entry
**entp
;
3368 struct plt_entry
*ent
;
3370 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3372 struct plt_entry
*dent
;
3374 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3375 if (dent
->addend
== ent
->addend
)
3377 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3384 *entp
= edir
->elf
.plt
.plist
;
3387 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3388 eind
->elf
.plt
.plist
= NULL
;
3391 if (edir
->elf
.dynindx
== -1)
3393 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3394 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3395 eind
->elf
.dynindx
= -1;
3396 eind
->elf
.dynstr_index
= 0;
3399 BFD_ASSERT (eind
->elf
.dynindx
== -1);
3402 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3403 symbols undefined on the command-line. */
3406 ppc64_elf_mark_entry_syms (info
)
3407 struct bfd_link_info
*info
;
3409 struct ppc_link_hash_table
*htab
;
3410 struct bfd_sym_chain
*sym
;
3412 htab
= ppc_hash_table (info
);
3413 for (sym
= info
->gc_sym_list
; sym
; sym
= sym
->next
)
3415 struct elf_link_hash_entry
*h
;
3417 h
= elf_link_hash_lookup (&htab
->elf
, sym
->name
, FALSE
, FALSE
, FALSE
);
3419 ((struct ppc_link_hash_entry
*) h
)->is_entry
= 1;
3425 update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, r_addend
, tls_type
)
3427 Elf_Internal_Shdr
*symtab_hdr
;
3428 unsigned long r_symndx
;
3432 struct got_entry
**local_got_ents
= elf_local_got_ents (abfd
);
3433 char *local_got_tls_masks
;
3435 if (local_got_ents
== NULL
)
3437 bfd_size_type size
= symtab_hdr
->sh_info
;
3439 size
*= sizeof (*local_got_ents
) + sizeof (*local_got_tls_masks
);
3440 local_got_ents
= (struct got_entry
**) bfd_zalloc (abfd
, size
);
3441 if (local_got_ents
== NULL
)
3443 elf_local_got_ents (abfd
) = local_got_ents
;
3446 if ((tls_type
& TLS_EXPLICIT
) == 0)
3448 struct got_entry
*ent
;
3450 for (ent
= local_got_ents
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
3451 if (ent
->addend
== r_addend
&& ent
->tls_type
== tls_type
)
3455 bfd_size_type amt
= sizeof (*ent
);
3456 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3459 ent
->next
= local_got_ents
[r_symndx
];
3460 ent
->addend
= r_addend
;
3461 ent
->tls_type
= tls_type
;
3462 ent
->got
.refcount
= 0;
3463 local_got_ents
[r_symndx
] = ent
;
3465 ent
->got
.refcount
+= 1;
3468 local_got_tls_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
3469 local_got_tls_masks
[r_symndx
] |= tls_type
;
3474 update_plt_info (abfd
, eh
, addend
)
3476 struct ppc_link_hash_entry
*eh
;
3479 struct plt_entry
*ent
;
3481 for (ent
= eh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
3482 if (ent
->addend
== addend
)
3486 bfd_size_type amt
= sizeof (*ent
);
3487 ent
= (struct plt_entry
*) bfd_alloc (abfd
, amt
);
3490 ent
->next
= eh
->elf
.plt
.plist
;
3491 ent
->addend
= addend
;
3492 ent
->plt
.refcount
= 0;
3493 eh
->elf
.plt
.plist
= ent
;
3495 ent
->plt
.refcount
+= 1;
3496 eh
->elf
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
3501 /* Look through the relocs for a section during the first phase, and
3502 calculate needed space in the global offset table, procedure
3503 linkage table, and dynamic reloc sections. */
3506 ppc64_elf_check_relocs (abfd
, info
, sec
, relocs
)
3508 struct bfd_link_info
*info
;
3510 const Elf_Internal_Rela
*relocs
;
3512 struct ppc_link_hash_table
*htab
;
3513 Elf_Internal_Shdr
*symtab_hdr
;
3514 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
3515 const Elf_Internal_Rela
*rel
;
3516 const Elf_Internal_Rela
*rel_end
;
3518 asection
**opd_sym_map
;
3520 if (info
->relocateable
)
3523 htab
= ppc_hash_table (info
);
3524 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3526 sym_hashes
= elf_sym_hashes (abfd
);
3527 sym_hashes_end
= (sym_hashes
3528 + symtab_hdr
->sh_size
/ sizeof (Elf64_External_Sym
)
3529 - symtab_hdr
->sh_info
);
3533 if (strcmp (bfd_get_section_name (abfd
, sec
), ".opd") == 0)
3535 /* Garbage collection needs some extra help with .opd sections.
3536 We don't want to necessarily keep everything referenced by
3537 relocs in .opd, as that would keep all functions. Instead,
3538 if we reference an .opd symbol (a function descriptor), we
3539 want to keep the function code symbol's section. This is
3540 easy for global symbols, but for local syms we need to keep
3541 information about the associated function section. Later, if
3542 edit_opd deletes entries, we'll use this array to adjust
3543 local syms in .opd. */
3545 asection
*func_section
;
3550 amt
= sec
->_raw_size
* sizeof (union opd_info
) / 24;
3551 opd_sym_map
= (asection
**) bfd_zalloc (abfd
, amt
);
3552 if (opd_sym_map
== NULL
)
3554 ppc64_elf_section_data (sec
)->opd
.func_sec
= opd_sym_map
;
3557 if (htab
->elf
.dynobj
== NULL
)
3558 htab
->elf
.dynobj
= abfd
;
3559 if (htab
->sfpr
== NULL
3560 && !create_linkage_sections (htab
->elf
.dynobj
, info
))
3563 rel_end
= relocs
+ sec
->reloc_count
;
3564 for (rel
= relocs
; rel
< rel_end
; rel
++)
3566 unsigned long r_symndx
;
3567 struct elf_link_hash_entry
*h
;
3568 enum elf_ppc64_reloc_type r_type
;
3571 r_symndx
= ELF64_R_SYM (rel
->r_info
);
3572 if (r_symndx
< symtab_hdr
->sh_info
)
3575 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3577 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
3580 case R_PPC64_GOT_TLSLD16
:
3581 case R_PPC64_GOT_TLSLD16_LO
:
3582 case R_PPC64_GOT_TLSLD16_HI
:
3583 case R_PPC64_GOT_TLSLD16_HA
:
3584 htab
->tlsld_got
.refcount
+= 1;
3585 tls_type
= TLS_TLS
| TLS_LD
;
3588 case R_PPC64_GOT_TLSGD16
:
3589 case R_PPC64_GOT_TLSGD16_LO
:
3590 case R_PPC64_GOT_TLSGD16_HI
:
3591 case R_PPC64_GOT_TLSGD16_HA
:
3592 tls_type
= TLS_TLS
| TLS_GD
;
3595 case R_PPC64_GOT_TPREL16_DS
:
3596 case R_PPC64_GOT_TPREL16_LO_DS
:
3597 case R_PPC64_GOT_TPREL16_HI
:
3598 case R_PPC64_GOT_TPREL16_HA
:
3600 info
->flags
|= DF_STATIC_TLS
;
3601 tls_type
= TLS_TLS
| TLS_TPREL
;
3604 case R_PPC64_GOT_DTPREL16_DS
:
3605 case R_PPC64_GOT_DTPREL16_LO_DS
:
3606 case R_PPC64_GOT_DTPREL16_HI
:
3607 case R_PPC64_GOT_DTPREL16_HA
:
3608 tls_type
= TLS_TLS
| TLS_DTPREL
;
3610 sec
->has_tls_reloc
= 1;
3614 case R_PPC64_GOT16_DS
:
3615 case R_PPC64_GOT16_HA
:
3616 case R_PPC64_GOT16_HI
:
3617 case R_PPC64_GOT16_LO
:
3618 case R_PPC64_GOT16_LO_DS
:
3619 /* This symbol requires a global offset table entry. */
3620 if (htab
->sgot
== NULL
3621 && !create_got_section (htab
->elf
.dynobj
, info
))
3626 struct ppc_link_hash_entry
*eh
;
3627 struct got_entry
*ent
;
3629 eh
= (struct ppc_link_hash_entry
*) h
;
3630 for (ent
= eh
->elf
.got
.glist
; ent
!= NULL
; ent
= ent
->next
)
3631 if (ent
->addend
== rel
->r_addend
3632 && ent
->tls_type
== tls_type
)
3636 bfd_size_type amt
= sizeof (*ent
);
3637 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3640 ent
->next
= eh
->elf
.got
.glist
;
3641 ent
->addend
= rel
->r_addend
;
3642 ent
->tls_type
= tls_type
;
3643 ent
->got
.refcount
= 0;
3644 eh
->elf
.got
.glist
= ent
;
3646 ent
->got
.refcount
+= 1;
3647 eh
->tls_mask
|= tls_type
;
3650 /* This is a global offset table entry for a local symbol. */
3651 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3652 rel
->r_addend
, tls_type
))
3656 case R_PPC64_PLT16_HA
:
3657 case R_PPC64_PLT16_HI
:
3658 case R_PPC64_PLT16_LO
:
3661 /* This symbol requires a procedure linkage table entry. We
3662 actually build the entry in adjust_dynamic_symbol,
3663 because this might be a case of linking PIC code without
3664 linking in any dynamic objects, in which case we don't
3665 need to generate a procedure linkage table after all. */
3668 /* It does not make sense to have a procedure linkage
3669 table entry for a local symbol. */
3670 bfd_set_error (bfd_error_bad_value
);
3674 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3679 /* The following relocations don't need to propagate the
3680 relocation if linking a shared object since they are
3681 section relative. */
3682 case R_PPC64_SECTOFF
:
3683 case R_PPC64_SECTOFF_LO
:
3684 case R_PPC64_SECTOFF_HI
:
3685 case R_PPC64_SECTOFF_HA
:
3686 case R_PPC64_SECTOFF_DS
:
3687 case R_PPC64_SECTOFF_LO_DS
:
3689 case R_PPC64_TOC16_LO
:
3690 case R_PPC64_TOC16_HI
:
3691 case R_PPC64_TOC16_HA
:
3692 case R_PPC64_TOC16_DS
:
3693 case R_PPC64_TOC16_LO_DS
:
3694 case R_PPC64_DTPREL16
:
3695 case R_PPC64_DTPREL16_LO
:
3696 case R_PPC64_DTPREL16_HI
:
3697 case R_PPC64_DTPREL16_HA
:
3698 case R_PPC64_DTPREL16_DS
:
3699 case R_PPC64_DTPREL16_LO_DS
:
3700 case R_PPC64_DTPREL16_HIGHER
:
3701 case R_PPC64_DTPREL16_HIGHERA
:
3702 case R_PPC64_DTPREL16_HIGHEST
:
3703 case R_PPC64_DTPREL16_HIGHESTA
:
3706 /* This relocation describes the C++ object vtable hierarchy.
3707 Reconstruct it for later use during GC. */
3708 case R_PPC64_GNU_VTINHERIT
:
3709 if (!_bfd_elf64_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3713 /* This relocation describes which C++ vtable entries are actually
3714 used. Record for later use during GC. */
3715 case R_PPC64_GNU_VTENTRY
:
3716 if (!_bfd_elf64_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3721 case R_PPC64_REL14_BRTAKEN
:
3722 case R_PPC64_REL14_BRNTAKEN
:
3723 htab
->has_14bit_branch
= 1;
3728 && h
->root
.root
.string
[0] == '.'
3729 && h
->root
.root
.string
[1] != 0)
3731 /* We may need a .plt entry if the function this reloc
3732 refers to is in a shared lib. */
3733 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3736 if (h
== htab
->tls_get_addr
)
3737 sec
->has_tls_reloc
= 1;
3738 else if ((strncmp (h
->root
.root
.string
, ".__tls_get_addr", 15)
3740 && (h
->root
.root
.string
[15] == 0
3741 || h
->root
.root
.string
[15] == '@'))
3743 htab
->tls_get_addr
= h
;
3744 sec
->has_tls_reloc
= 1;
3749 case R_PPC64_TPREL64
:
3750 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
3752 info
->flags
|= DF_STATIC_TLS
;
3755 case R_PPC64_DTPMOD64
:
3756 if (rel
+ 1 < rel_end
3757 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
3758 && rel
[1].r_offset
== rel
->r_offset
+ 8)
3759 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD
;
3761 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_LD
;
3764 case R_PPC64_DTPREL64
:
3765 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
3767 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
3768 && rel
[-1].r_offset
== rel
->r_offset
- 8)
3769 /* This is the second reloc of a dtpmod, dtprel pair.
3770 Don't mark with TLS_DTPREL. */
3774 sec
->has_tls_reloc
= 1;
3777 struct ppc_link_hash_entry
*eh
;
3778 eh
= (struct ppc_link_hash_entry
*) h
;
3779 eh
->tls_mask
|= tls_type
;
3782 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3783 rel
->r_addend
, tls_type
))
3786 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3788 /* One extra to simplify get_tls_mask. */
3789 bfd_size_type amt
= sec
->_raw_size
* sizeof (unsigned) / 8 + 1;
3790 ppc64_elf_section_data (sec
)->t_symndx
3791 = (unsigned *) bfd_zalloc (abfd
, amt
);
3792 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3795 BFD_ASSERT (rel
->r_offset
% 8 == 0);
3796 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8] = r_symndx
;
3798 /* Mark the second slot of a GD or LD entry.
3799 -1 to indicate GD and -2 to indicate LD. */
3800 if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_GD
))
3801 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -1;
3802 else if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_LD
))
3803 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -2;
3806 case R_PPC64_TPREL16
:
3807 case R_PPC64_TPREL16_LO
:
3808 case R_PPC64_TPREL16_HI
:
3809 case R_PPC64_TPREL16_HA
:
3810 case R_PPC64_TPREL16_DS
:
3811 case R_PPC64_TPREL16_LO_DS
:
3812 case R_PPC64_TPREL16_HIGHER
:
3813 case R_PPC64_TPREL16_HIGHERA
:
3814 case R_PPC64_TPREL16_HIGHEST
:
3815 case R_PPC64_TPREL16_HIGHESTA
:
3818 info
->flags
|= DF_STATIC_TLS
;
3823 case R_PPC64_ADDR64
:
3824 if (opd_sym_map
!= NULL
3826 && h
->root
.root
.string
[0] == '.'
3827 && h
->root
.root
.string
[1] != 0)
3829 struct elf_link_hash_entry
*fdh
;
3831 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
3832 FALSE
, FALSE
, FALSE
);
3835 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
3836 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
3837 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
3838 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
3841 if (opd_sym_map
!= NULL
3843 && rel
+ 1 < rel_end
3844 && ((enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
)
3849 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
, sec
,
3854 opd_sym_map
[rel
->r_offset
/ 24] = s
;
3861 case R_PPC64_ADDR14
:
3862 case R_PPC64_ADDR14_BRNTAKEN
:
3863 case R_PPC64_ADDR14_BRTAKEN
:
3864 case R_PPC64_ADDR16
:
3865 case R_PPC64_ADDR16_DS
:
3866 case R_PPC64_ADDR16_HA
:
3867 case R_PPC64_ADDR16_HI
:
3868 case R_PPC64_ADDR16_HIGHER
:
3869 case R_PPC64_ADDR16_HIGHERA
:
3870 case R_PPC64_ADDR16_HIGHEST
:
3871 case R_PPC64_ADDR16_HIGHESTA
:
3872 case R_PPC64_ADDR16_LO
:
3873 case R_PPC64_ADDR16_LO_DS
:
3874 case R_PPC64_ADDR24
:
3875 case R_PPC64_ADDR32
:
3876 case R_PPC64_UADDR16
:
3877 case R_PPC64_UADDR32
:
3878 case R_PPC64_UADDR64
:
3880 /* Don't propagate .opd relocs. */
3881 if (NO_OPD_RELOCS
&& opd_sym_map
!= NULL
)
3884 /* Don't propagate relocs that the dynamic linker won't relocate. */
3885 if ((sec
->flags
& SEC_ALLOC
) == 0)
3888 /* If we are creating a shared library, and this is a reloc
3889 against a global symbol, or a non PC relative reloc
3890 against a local symbol, then we need to copy the reloc
3891 into the shared library. However, if we are linking with
3892 -Bsymbolic, we do not need to copy a reloc against a
3893 global symbol which is defined in an object we are
3894 including in the link (i.e., DEF_REGULAR is set). At
3895 this point we have not seen all the input files, so it is
3896 possible that DEF_REGULAR is not set now but will be set
3897 later (it is never cleared). In case of a weak definition,
3898 DEF_REGULAR may be cleared later by a strong definition in
3899 a shared library. We account for that possibility below by
3900 storing information in the dyn_relocs field of the hash
3901 table entry. A similar situation occurs when creating
3902 shared libraries and symbol visibility changes render the
3905 If on the other hand, we are creating an executable, we
3906 may need to keep relocations for symbols satisfied by a
3907 dynamic library if we manage to avoid copy relocs for the
3911 && (MUST_BE_DYN_RELOC (r_type
)
3913 && (! info
->symbolic
3914 || h
->root
.type
== bfd_link_hash_defweak
3915 || (h
->elf_link_hash_flags
3916 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3917 || (ELIMINATE_COPY_RELOCS
3920 && (h
->root
.type
== bfd_link_hash_defweak
3921 || (h
->elf_link_hash_flags
3922 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3924 struct ppc_dyn_relocs
*p
;
3925 struct ppc_dyn_relocs
**head
;
3927 /* We must copy these reloc types into the output file.
3928 Create a reloc section in dynobj and make room for
3935 name
= (bfd_elf_string_from_elf_section
3937 elf_elfheader (abfd
)->e_shstrndx
,
3938 elf_section_data (sec
)->rel_hdr
.sh_name
));
3942 if (strncmp (name
, ".rela", 5) != 0
3943 || strcmp (bfd_get_section_name (abfd
, sec
),
3946 (*_bfd_error_handler
)
3947 (_("%s: bad relocation section name `%s\'"),
3948 bfd_archive_filename (abfd
), name
);
3949 bfd_set_error (bfd_error_bad_value
);
3952 dynobj
= htab
->elf
.dynobj
;
3953 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3958 sreloc
= bfd_make_section (dynobj
, name
);
3959 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3960 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3961 if ((sec
->flags
& SEC_ALLOC
) != 0)
3962 flags
|= SEC_ALLOC
| SEC_LOAD
;
3964 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
3965 || ! bfd_set_section_alignment (dynobj
, sreloc
, 3))
3968 elf_section_data (sec
)->sreloc
= sreloc
;
3971 /* If this is a global symbol, we count the number of
3972 relocations we need for this symbol. */
3975 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
3979 /* Track dynamic relocs needed for local syms too.
3980 We really need local syms available to do this
3984 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
3989 head
= ((struct ppc_dyn_relocs
**)
3990 &elf_section_data (s
)->local_dynrel
);
3994 if (p
== NULL
|| p
->sec
!= sec
)
3996 p
= ((struct ppc_dyn_relocs
*)
3997 bfd_alloc (htab
->elf
.dynobj
,
3998 (bfd_size_type
) sizeof *p
));
4009 if (!MUST_BE_DYN_RELOC (r_type
))
4022 /* Return the section that should be marked against GC for a given
4026 ppc64_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
)
4028 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4029 Elf_Internal_Rela
*rel
;
4030 struct elf_link_hash_entry
*h
;
4031 Elf_Internal_Sym
*sym
;
4033 asection
*rsec
= NULL
;
4037 enum elf_ppc64_reloc_type r_type
;
4038 struct ppc_link_hash_entry
*fdh
;
4040 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4043 case R_PPC64_GNU_VTINHERIT
:
4044 case R_PPC64_GNU_VTENTRY
:
4048 switch (h
->root
.type
)
4050 case bfd_link_hash_defined
:
4051 case bfd_link_hash_defweak
:
4052 fdh
= (struct ppc_link_hash_entry
*) h
;
4054 /* Function descriptor syms cause the associated
4055 function code sym section to be marked. */
4056 if (fdh
->is_func_descriptor
)
4057 rsec
= fdh
->oh
->root
.u
.def
.section
;
4059 /* Function entry syms return NULL if they are in .opd
4060 and are not ._start (or others undefined on the ld
4061 command line). Thus we avoid marking all function
4062 sections, as all functions are referenced in .opd. */
4063 else if ((fdh
->oh
!= NULL
4064 && ((struct ppc_link_hash_entry
*) fdh
->oh
)->is_entry
)
4065 || ppc64_elf_section_data (sec
)->opd
.func_sec
== NULL
)
4066 rsec
= h
->root
.u
.def
.section
;
4069 case bfd_link_hash_common
:
4070 rsec
= h
->root
.u
.c
.p
->section
;
4080 asection
**opd_sym_section
;
4082 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
4083 opd_sym_section
= ppc64_elf_section_data (rsec
)->opd
.func_sec
;
4084 if (opd_sym_section
!= NULL
)
4085 rsec
= opd_sym_section
[sym
->st_value
/ 24];
4086 else if (ppc64_elf_section_data (sec
)->opd
.func_sec
!= NULL
)
4093 /* Update the .got, .plt. and dynamic reloc reference counts for the
4094 section being removed. */
4097 ppc64_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
4099 struct bfd_link_info
*info
;
4101 const Elf_Internal_Rela
*relocs
;
4103 struct ppc_link_hash_table
*htab
;
4104 Elf_Internal_Shdr
*symtab_hdr
;
4105 struct elf_link_hash_entry
**sym_hashes
;
4106 struct got_entry
**local_got_ents
;
4107 const Elf_Internal_Rela
*rel
, *relend
;
4109 elf_section_data (sec
)->local_dynrel
= NULL
;
4111 htab
= ppc_hash_table (info
);
4112 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
4113 sym_hashes
= elf_sym_hashes (abfd
);
4114 local_got_ents
= elf_local_got_ents (abfd
);
4116 relend
= relocs
+ sec
->reloc_count
;
4117 for (rel
= relocs
; rel
< relend
; rel
++)
4119 unsigned long r_symndx
;
4120 enum elf_ppc64_reloc_type r_type
;
4121 struct elf_link_hash_entry
*h
= NULL
;
4124 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4125 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4126 if (r_symndx
>= symtab_hdr
->sh_info
)
4128 struct ppc_link_hash_entry
*eh
;
4129 struct ppc_dyn_relocs
**pp
;
4130 struct ppc_dyn_relocs
*p
;
4132 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4133 eh
= (struct ppc_link_hash_entry
*) h
;
4135 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4138 /* Everything must go for SEC. */
4146 case R_PPC64_GOT_TLSLD16
:
4147 case R_PPC64_GOT_TLSLD16_LO
:
4148 case R_PPC64_GOT_TLSLD16_HI
:
4149 case R_PPC64_GOT_TLSLD16_HA
:
4150 htab
->tlsld_got
.refcount
-= 1;
4151 tls_type
= TLS_TLS
| TLS_LD
;
4154 case R_PPC64_GOT_TLSGD16
:
4155 case R_PPC64_GOT_TLSGD16_LO
:
4156 case R_PPC64_GOT_TLSGD16_HI
:
4157 case R_PPC64_GOT_TLSGD16_HA
:
4158 tls_type
= TLS_TLS
| TLS_GD
;
4161 case R_PPC64_GOT_TPREL16_DS
:
4162 case R_PPC64_GOT_TPREL16_LO_DS
:
4163 case R_PPC64_GOT_TPREL16_HI
:
4164 case R_PPC64_GOT_TPREL16_HA
:
4165 tls_type
= TLS_TLS
| TLS_TPREL
;
4168 case R_PPC64_GOT_DTPREL16_DS
:
4169 case R_PPC64_GOT_DTPREL16_LO_DS
:
4170 case R_PPC64_GOT_DTPREL16_HI
:
4171 case R_PPC64_GOT_DTPREL16_HA
:
4172 tls_type
= TLS_TLS
| TLS_DTPREL
;
4176 case R_PPC64_GOT16_DS
:
4177 case R_PPC64_GOT16_HA
:
4178 case R_PPC64_GOT16_HI
:
4179 case R_PPC64_GOT16_LO
:
4180 case R_PPC64_GOT16_LO_DS
:
4183 struct got_entry
*ent
;
4188 ent
= local_got_ents
[r_symndx
];
4190 for (; ent
!= NULL
; ent
= ent
->next
)
4191 if (ent
->addend
== rel
->r_addend
4192 && ent
->tls_type
== tls_type
)
4196 if (ent
->got
.refcount
> 0)
4197 ent
->got
.refcount
-= 1;
4201 case R_PPC64_PLT16_HA
:
4202 case R_PPC64_PLT16_HI
:
4203 case R_PPC64_PLT16_LO
:
4207 case R_PPC64_REL14_BRNTAKEN
:
4208 case R_PPC64_REL14_BRTAKEN
:
4212 struct plt_entry
*ent
;
4214 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4215 if (ent
->addend
== rel
->r_addend
)
4219 if (ent
->plt
.refcount
> 0)
4220 ent
->plt
.refcount
-= 1;
4231 /* Called via elf_link_hash_traverse to transfer dynamic linking
4232 information on function code symbol entries to their corresponding
4233 function descriptor symbol entries. */
4235 func_desc_adjust (h
, inf
)
4236 struct elf_link_hash_entry
*h
;
4239 struct bfd_link_info
*info
;
4240 struct ppc_link_hash_table
*htab
;
4241 struct plt_entry
*ent
;
4243 if (h
->root
.type
== bfd_link_hash_indirect
)
4246 if (h
->root
.type
== bfd_link_hash_warning
)
4247 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4249 info
= (struct bfd_link_info
*) inf
;
4250 htab
= ppc_hash_table (info
);
4252 /* If this is a function code symbol, transfer dynamic linking
4253 information to the function descriptor symbol. */
4254 if (!((struct ppc_link_hash_entry
*) h
)->is_func
)
4257 if (h
->root
.type
== bfd_link_hash_undefweak
4258 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
))
4259 htab
->have_undefweak
= TRUE
;
4261 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4262 if (ent
->plt
.refcount
> 0)
4265 && h
->root
.root
.string
[0] == '.'
4266 && h
->root
.root
.string
[1] != '\0')
4268 struct elf_link_hash_entry
*fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4269 bfd_boolean force_local
;
4271 /* Find the corresponding function descriptor symbol. Create it
4272 as undefined if necessary. */
4275 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
4276 FALSE
, FALSE
, TRUE
);
4280 && (h
->root
.type
== bfd_link_hash_undefined
4281 || h
->root
.type
== bfd_link_hash_undefweak
))
4285 struct bfd_link_hash_entry
*bh
;
4287 abfd
= h
->root
.u
.undef
.abfd
;
4288 newsym
= bfd_make_empty_symbol (abfd
);
4289 newsym
->name
= h
->root
.root
.string
+ 1;
4290 newsym
->section
= bfd_und_section_ptr
;
4292 newsym
->flags
= BSF_OBJECT
;
4293 if (h
->root
.type
== bfd_link_hash_undefweak
)
4294 newsym
->flags
|= BSF_WEAK
;
4297 if ( !(_bfd_generic_link_add_one_symbol
4298 (info
, abfd
, newsym
->name
, newsym
->flags
,
4299 newsym
->section
, newsym
->value
, NULL
, FALSE
, FALSE
, &bh
)))
4303 fdh
= (struct elf_link_hash_entry
*) bh
;
4304 fdh
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4308 && (fdh
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0
4310 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4311 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0))
4313 if (fdh
->dynindx
== -1)
4314 if (! bfd_elf64_link_record_dynamic_symbol (info
, fdh
))
4316 fdh
->elf_link_hash_flags
|= (h
->elf_link_hash_flags
4317 & (ELF_LINK_HASH_REF_REGULAR
4318 | ELF_LINK_HASH_REF_DYNAMIC
4319 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4320 | ELF_LINK_NON_GOT_REF
));
4321 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4323 fdh
->plt
.plist
= h
->plt
.plist
;
4324 fdh
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
4326 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
4327 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
4328 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
4331 /* Now that the info is on the function descriptor, clear the
4332 function code sym info. Any function code syms for which we
4333 don't have a definition in a regular file, we force local.
4334 This prevents a shared library from exporting syms that have
4335 been imported from another library. Function code syms that
4336 are really in the library we must leave global to prevent the
4337 linker dragging in a definition from a static library. */
4338 force_local
= (info
->shared
4339 && ((h
->elf_link_hash_flags
4340 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4342 || (fdh
->elf_link_hash_flags
4343 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4344 || (fdh
->elf_link_hash_flags
4345 & ELF_LINK_FORCED_LOCAL
) != 0));
4346 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4352 #define MIN_SAVE_FPR 14
4353 #define MAX_SAVE_FPR 31
4355 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4356 this hook to a) provide some gcc support functions, and b) transfer
4357 dynamic linking information gathered so far on function code symbol
4358 entries, to their corresponding function descriptor symbol entries. */
4360 ppc64_elf_func_desc_adjust (obfd
, info
)
4361 bfd
*obfd ATTRIBUTE_UNUSED
;
4362 struct bfd_link_info
*info
;
4364 struct ppc_link_hash_table
*htab
;
4365 unsigned int lowest_savef
= MAX_SAVE_FPR
+ 2;
4366 unsigned int lowest_restf
= MAX_SAVE_FPR
+ 2;
4368 struct elf_link_hash_entry
*h
;
4372 htab
= ppc_hash_table (info
);
4374 if (htab
->sfpr
== NULL
)
4375 /* We don't have any relocs. */
4378 /* First provide any missing ._savef* and ._restf* functions. */
4379 memcpy (sym
, "._savef14", 10);
4380 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4382 sym
[7] = i
/ 10 + '0';
4383 sym
[8] = i
% 10 + '0';
4384 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4386 && h
->root
.type
== bfd_link_hash_undefined
)
4388 if (lowest_savef
> i
)
4390 h
->root
.type
= bfd_link_hash_defined
;
4391 h
->root
.u
.def
.section
= htab
->sfpr
;
4392 h
->root
.u
.def
.value
= (i
- lowest_savef
) * 4;
4394 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4395 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4399 memcpy (sym
, "._restf14", 10);
4400 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4402 sym
[7] = i
/ 10 + '0';
4403 sym
[8] = i
% 10 + '0';
4404 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4406 && h
->root
.type
== bfd_link_hash_undefined
)
4408 if (lowest_restf
> i
)
4410 h
->root
.type
= bfd_link_hash_defined
;
4411 h
->root
.u
.def
.section
= htab
->sfpr
;
4412 h
->root
.u
.def
.value
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4413 + (i
- lowest_restf
) * 4);
4415 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4416 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4420 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, (PTR
) info
);
4422 htab
->sfpr
->_raw_size
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4423 + (MAX_SAVE_FPR
+ 2 - lowest_restf
) * 4);
4425 if (htab
->sfpr
->_raw_size
== 0)
4427 if (!htab
->have_undefweak
)
4429 _bfd_strip_section_from_output (info
, htab
->sfpr
);
4433 htab
->sfpr
->_raw_size
= 4;
4436 p
= (bfd_byte
*) bfd_alloc (htab
->elf
.dynobj
, htab
->sfpr
->_raw_size
);
4439 htab
->sfpr
->contents
= p
;
4441 for (i
= lowest_savef
; i
<= MAX_SAVE_FPR
; i
++)
4443 unsigned int fpr
= i
<< 21;
4444 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4445 bfd_put_32 (htab
->elf
.dynobj
, STFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4448 if (lowest_savef
<= MAX_SAVE_FPR
)
4450 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4454 for (i
= lowest_restf
; 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
, LFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4461 if (lowest_restf
<= MAX_SAVE_FPR
4462 || htab
->sfpr
->_raw_size
== 4)
4464 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4470 /* Adjust a symbol defined by a dynamic object and referenced by a
4471 regular object. The current definition is in some section of the
4472 dynamic object, but we're not including those sections. We have to
4473 change the definition to something the rest of the link can
4477 ppc64_elf_adjust_dynamic_symbol (info
, h
)
4478 struct bfd_link_info
*info
;
4479 struct elf_link_hash_entry
*h
;
4481 struct ppc_link_hash_table
*htab
;
4483 unsigned int power_of_two
;
4485 htab
= ppc_hash_table (info
);
4487 /* Deal with function syms. */
4488 if (h
->type
== STT_FUNC
4489 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4491 /* Clear procedure linkage table information for any symbol that
4492 won't need a .plt entry. */
4493 struct plt_entry
*ent
;
4494 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4495 if (ent
->plt
.refcount
> 0)
4497 if (!((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
4499 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
4501 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) == 0
4502 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) == 0))
4504 h
->plt
.plist
= NULL
;
4505 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4510 h
->plt
.plist
= NULL
;
4512 /* If this is a weak symbol, and there is a real definition, the
4513 processor independent code will have arranged for us to see the
4514 real definition first, and we can just use the same value. */
4515 if (h
->weakdef
!= NULL
)
4517 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
4518 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
4519 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
4520 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
4524 /* This is a reference to a symbol defined by a dynamic object which
4525 is not a function. */
4527 /* If we are creating a shared library, we must presume that the
4528 only references to the symbol are via the global offset table.
4529 For such cases we need not do anything here; the relocations will
4530 be handled correctly by relocate_section. */
4534 /* If there are no references to this symbol that do not use the
4535 GOT, we don't need to generate a copy reloc. */
4536 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
4539 if (ELIMINATE_COPY_RELOCS
)
4541 struct ppc_link_hash_entry
* eh
;
4542 struct ppc_dyn_relocs
*p
;
4544 eh
= (struct ppc_link_hash_entry
*) h
;
4545 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4547 s
= p
->sec
->output_section
;
4548 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
4552 /* If we didn't find any dynamic relocs in read-only sections, then
4553 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4556 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
4561 /* We must allocate the symbol in our .dynbss section, which will
4562 become part of the .bss section of the executable. There will be
4563 an entry for this symbol in the .dynsym section. The dynamic
4564 object will contain position independent code, so all references
4565 from the dynamic object to this symbol will go through the global
4566 offset table. The dynamic linker will use the .dynsym entry to
4567 determine the address it must put in the global offset table, so
4568 both the dynamic object and the regular object will refer to the
4569 same memory location for the variable. */
4571 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4572 to copy the initial value out of the dynamic object and into the
4573 runtime process image. We need to remember the offset into the
4574 .rela.bss section we are going to use. */
4575 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4577 htab
->srelbss
->_raw_size
+= sizeof (Elf64_External_Rela
);
4578 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
4581 /* We need to figure out the alignment required for this symbol. I
4582 have no idea how ELF linkers handle this. */
4583 power_of_two
= bfd_log2 (h
->size
);
4584 if (power_of_two
> 4)
4587 /* Apply the required alignment. */
4589 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
, (bfd_size_type
) (1 << power_of_two
));
4590 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
4592 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
4596 /* Define the symbol as being at this point in the section. */
4597 h
->root
.u
.def
.section
= s
;
4598 h
->root
.u
.def
.value
= s
->_raw_size
;
4600 /* Increment the section size to make room for the symbol. */
4601 s
->_raw_size
+= h
->size
;
4606 /* If given a function descriptor symbol, hide both the function code
4607 sym and the descriptor. */
4609 ppc64_elf_hide_symbol (info
, h
, force_local
)
4610 struct bfd_link_info
*info
;
4611 struct elf_link_hash_entry
*h
;
4612 bfd_boolean force_local
;
4614 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4616 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
4618 struct elf_link_hash_entry
*fh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4623 struct ppc_link_hash_table
*htab
;
4626 /* We aren't supposed to use alloca in BFD because on
4627 systems which do not have alloca the version in libiberty
4628 calls xmalloc, which might cause the program to crash
4629 when it runs out of memory. This function doesn't have a
4630 return status, so there's no way to gracefully return an
4631 error. So cheat. We know that string[-1] can be safely
4632 dereferenced; It's either a string in an ELF string
4633 table, or allocated in an objalloc structure. */
4635 p
= h
->root
.root
.string
- 1;
4638 htab
= ppc_hash_table (info
);
4639 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4642 /* Unfortunately, if it so happens that the string we were
4643 looking for was allocated immediately before this string,
4644 then we overwrote the string terminator. That's the only
4645 reason the lookup should fail. */
4648 q
= h
->root
.root
.string
+ strlen (h
->root
.root
.string
);
4649 while (q
>= h
->root
.root
.string
&& *q
== *p
)
4651 if (q
< h
->root
.root
.string
&& *p
== '.')
4652 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4656 ((struct ppc_link_hash_entry
*) h
)->oh
= fh
;
4657 ((struct ppc_link_hash_entry
*) fh
)->oh
= h
;
4661 _bfd_elf_link_hash_hide_symbol (info
, fh
, force_local
);
4666 get_sym_h (hp
, symp
, symsecp
, tls_maskp
, locsymsp
, r_symndx
, ibfd
)
4667 struct elf_link_hash_entry
**hp
;
4668 Elf_Internal_Sym
**symp
;
4671 Elf_Internal_Sym
**locsymsp
;
4672 unsigned long r_symndx
;
4675 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4677 if (r_symndx
>= symtab_hdr
->sh_info
)
4679 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
4680 struct elf_link_hash_entry
*h
;
4682 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4683 while (h
->root
.type
== bfd_link_hash_indirect
4684 || h
->root
.type
== bfd_link_hash_warning
)
4685 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4693 if (symsecp
!= NULL
)
4695 asection
*symsec
= NULL
;
4696 if (h
->root
.type
== bfd_link_hash_defined
4697 || h
->root
.type
== bfd_link_hash_defweak
)
4698 symsec
= h
->root
.u
.def
.section
;
4702 if (tls_maskp
!= NULL
)
4704 struct ppc_link_hash_entry
*eh
;
4706 eh
= (struct ppc_link_hash_entry
*) h
;
4707 *tls_maskp
= &eh
->tls_mask
;
4712 Elf_Internal_Sym
*sym
;
4713 Elf_Internal_Sym
*locsyms
= *locsymsp
;
4715 if (locsyms
== NULL
)
4717 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4718 if (locsyms
== NULL
)
4719 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
4720 symtab_hdr
->sh_info
,
4721 0, NULL
, NULL
, NULL
);
4722 if (locsyms
== NULL
)
4724 *locsymsp
= locsyms
;
4726 sym
= locsyms
+ r_symndx
;
4734 if (symsecp
!= NULL
)
4736 asection
*symsec
= NULL
;
4737 if ((sym
->st_shndx
!= SHN_UNDEF
4738 && sym
->st_shndx
< SHN_LORESERVE
)
4739 || sym
->st_shndx
> SHN_HIRESERVE
)
4740 symsec
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
4744 if (tls_maskp
!= NULL
)
4746 struct got_entry
**lgot_ents
;
4750 lgot_ents
= elf_local_got_ents (ibfd
);
4751 if (lgot_ents
!= NULL
)
4753 char *lgot_masks
= (char *) (lgot_ents
+ symtab_hdr
->sh_info
);
4754 tls_mask
= &lgot_masks
[r_symndx
];
4756 *tls_maskp
= tls_mask
;
4762 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4763 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4764 type suitable for optimization, and 1 otherwise. */
4767 get_tls_mask (tls_maskp
, locsymsp
, rel
, ibfd
)
4769 Elf_Internal_Sym
**locsymsp
;
4770 const Elf_Internal_Rela
*rel
;
4773 unsigned long r_symndx
;
4774 unsigned int next_r
;
4775 struct elf_link_hash_entry
*h
;
4776 Elf_Internal_Sym
*sym
;
4780 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4781 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4784 if ((*tls_maskp
!= NULL
&& **tls_maskp
!= 0)
4786 || ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
4789 /* Look inside a TOC section too. */
4792 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
4793 off
= h
->root
.u
.def
.value
;
4796 off
= sym
->st_value
;
4797 off
+= rel
->r_addend
;
4798 BFD_ASSERT (off
% 8 == 0);
4799 r_symndx
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8];
4800 next_r
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8 + 1];
4801 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4804 || h
->root
.type
== bfd_link_hash_defined
4805 || h
->root
.type
== bfd_link_hash_defweak
)
4807 if (next_r
== (unsigned) -1)
4809 if (next_r
== (unsigned) -2
4811 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
4818 ppc64_elf_edit_opd (obfd
, info
)
4820 struct bfd_link_info
*info
;
4824 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
4827 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
4828 Elf_Internal_Shdr
*symtab_hdr
;
4829 Elf_Internal_Sym
*local_syms
;
4830 struct elf_link_hash_entry
**sym_hashes
;
4834 bfd_boolean need_edit
;
4836 sec
= bfd_get_section_by_name (ibfd
, ".opd");
4840 amt
= sec
->_raw_size
* sizeof (long) / 24;
4841 adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
4844 /* Must be a ld -r link. ie. check_relocs hasn't been
4846 adjust
= (long *) bfd_zalloc (obfd
, amt
);
4847 ppc64_elf_section_data (sec
)->opd
.adjust
= adjust
;
4849 memset (adjust
, 0, (size_t) amt
);
4851 if (sec
->output_section
== bfd_abs_section_ptr
)
4854 /* Look through the section relocs. */
4855 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
4859 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4860 sym_hashes
= elf_sym_hashes (ibfd
);
4862 /* Read the relocations. */
4863 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
4864 (Elf_Internal_Rela
*) NULL
,
4866 if (relstart
== NULL
)
4869 /* First run through the relocs to check they are sane, and to
4870 determine whether we need to edit this opd section. */
4873 relend
= relstart
+ sec
->reloc_count
;
4874 for (rel
= relstart
; rel
< relend
; rel
++)
4876 enum elf_ppc64_reloc_type r_type
;
4877 unsigned long r_symndx
;
4879 struct elf_link_hash_entry
*h
;
4880 Elf_Internal_Sym
*sym
;
4882 /* .opd contains a regular array of 24 byte entries. We're
4883 only interested in the reloc pointing to a function entry
4885 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4886 if (r_type
== R_PPC64_TOC
)
4889 if (r_type
!= R_PPC64_ADDR64
)
4891 (*_bfd_error_handler
)
4892 (_("%s: unexpected reloc type %u in .opd section"),
4893 bfd_archive_filename (ibfd
), r_type
);
4898 if (rel
+ 1 >= relend
)
4900 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
);
4901 if (r_type
!= R_PPC64_TOC
)
4904 if (rel
->r_offset
!= offset
)
4906 /* If someone messes with .opd alignment then after a
4907 "ld -r" we might have padding in the middle of .opd.
4908 Also, there's nothing to prevent someone putting
4909 something silly in .opd with the assembler. No .opd
4910 optimization for them! */
4911 (*_bfd_error_handler
)
4912 (_("%s: .opd is not a regular array of opd entries"),
4913 bfd_archive_filename (ibfd
));
4918 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4919 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4921 goto error_free_rel
;
4923 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
4925 const char *sym_name
;
4927 sym_name
= h
->root
.root
.string
;
4929 sym_name
= bfd_elf_local_sym_name (ibfd
, sym
);
4931 (*_bfd_error_handler
)
4932 (_("%s: undefined sym `%s' in .opd section"),
4933 bfd_archive_filename (ibfd
),
4939 /* opd entries are always for functions defined in the
4940 current input bfd. If the symbol isn't defined in the
4941 input bfd, then we won't be using the function in this
4942 bfd; It must be defined in a linkonce section in another
4943 bfd, or is weak. It's also possible that we are
4944 discarding the function due to a linker script /DISCARD/,
4945 which we test for via the output_section. */
4946 if (sym_sec
->owner
!= ibfd
4947 || sym_sec
->output_section
== bfd_abs_section_ptr
)
4955 Elf_Internal_Rela
*write_rel
;
4956 bfd_byte
*rptr
, *wptr
;
4959 /* This seems a waste of time as input .opd sections are all
4960 zeros as generated by gcc, but I suppose there's no reason
4961 this will always be so. We might start putting something in
4962 the third word of .opd entries. */
4963 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
4965 bfd_byte
*loc
= bfd_alloc (ibfd
, sec
->_raw_size
);
4967 || !bfd_get_section_contents (ibfd
, sec
, loc
, (bfd_vma
) 0,
4970 if (local_syms
!= NULL
4971 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
4974 if (elf_section_data (sec
)->relocs
!= relstart
)
4978 sec
->contents
= loc
;
4979 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
4982 elf_section_data (sec
)->relocs
= relstart
;
4984 wptr
= sec
->contents
;
4985 rptr
= sec
->contents
;
4986 write_rel
= relstart
;
4989 for (rel
= relstart
; rel
< relend
; rel
++)
4991 if (rel
->r_offset
== offset
)
4993 unsigned long r_symndx
;
4995 struct elf_link_hash_entry
*h
;
4996 Elf_Internal_Sym
*sym
;
4998 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4999 get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
5002 skip
= (sym_sec
->owner
!= ibfd
5003 || sym_sec
->output_section
== bfd_abs_section_ptr
);
5006 if (h
!= NULL
&& sym_sec
->owner
== ibfd
)
5008 /* Arrange for the function descriptor sym
5010 struct ppc_link_hash_entry
*fdh
;
5011 struct ppc_link_hash_entry
*fh
;
5013 fh
= (struct ppc_link_hash_entry
*) h
;
5014 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5017 const char *fd_name
;
5018 struct ppc_link_hash_table
*htab
;
5020 fd_name
= h
->root
.root
.string
+ 1;
5021 htab
= ppc_hash_table (info
);
5022 fdh
= (struct ppc_link_hash_entry
*)
5023 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5024 FALSE
, FALSE
, FALSE
);
5025 fdh
->is_func_descriptor
= 1;
5031 fdh
->elf
.root
.u
.def
.value
= 0;
5032 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
5037 /* We'll be keeping this opd entry. */
5041 /* Redefine the function descriptor symbol
5042 to this location in the opd section.
5043 We've checked above that opd relocs are
5045 struct ppc_link_hash_entry
*fdh
;
5046 struct ppc_link_hash_entry
*fh
;
5048 fh
= (struct ppc_link_hash_entry
*) h
;
5049 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5052 const char *fd_name
;
5053 struct ppc_link_hash_table
*htab
;
5055 fd_name
= h
->root
.root
.string
+ 1;
5056 htab
= ppc_hash_table (info
);
5057 fdh
= (struct ppc_link_hash_entry
*)
5058 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5059 FALSE
, FALSE
, FALSE
);
5060 fdh
->is_func_descriptor
= 1;
5066 fdh
->elf
.root
.u
.def
.value
= wptr
- sec
->contents
;
5070 /* Local syms are a bit tricky. We could
5071 tweak them as they can be cached, but
5072 we'd need to look through the local syms
5073 for the function descriptor sym which we
5074 don't have at the moment. So keep an
5075 array of adjustments. */
5076 adjust
[rel
->r_offset
/ 24] = wptr
- rptr
;
5080 memcpy (wptr
, rptr
, 24);
5087 /* We need to adjust any reloc offsets to point to the
5088 new opd entries. While we're at it, we may as well
5089 remove redundant relocs. */
5092 rel
->r_offset
+= wptr
- rptr
;
5093 if (write_rel
!= rel
)
5094 memcpy (write_rel
, rel
, sizeof (*rel
));
5099 sec
->_cooked_size
= wptr
- sec
->contents
;
5100 sec
->reloc_count
= write_rel
- relstart
;
5101 /* Fudge the size too, as this is used later in
5102 elf_bfd_final_link if we are emitting relocs. */
5103 elf_section_data (sec
)->rel_hdr
.sh_size
5104 = sec
->reloc_count
* elf_section_data (sec
)->rel_hdr
.sh_entsize
;
5105 BFD_ASSERT (elf_section_data (sec
)->rel_hdr2
== NULL
);
5107 else if (elf_section_data (sec
)->relocs
!= relstart
)
5110 if (local_syms
!= NULL
5111 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5113 if (!info
->keep_memory
)
5116 symtab_hdr
->contents
= (unsigned char *) local_syms
;
5123 /* Set htab->tls_sec. */
5126 ppc64_elf_tls_setup (obfd
, info
)
5128 struct bfd_link_info
*info
;
5131 struct ppc_link_hash_table
*htab
;
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
))
5138 htab
= ppc_hash_table (info
);
5139 htab
->tls_sec
= tls
;
5141 if (htab
->tls_get_addr
!= NULL
)
5143 struct elf_link_hash_entry
*h
= htab
->tls_get_addr
;
5145 while (h
->root
.type
== bfd_link_hash_indirect
5146 || h
->root
.type
== bfd_link_hash_warning
)
5147 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5149 htab
->tls_get_addr
= h
;
5155 /* Run through all the TLS relocs looking for optimization
5156 opportunities. The linker has been hacked (see ppc64elf.em) to do
5157 a preliminary section layout so that we know the TLS segment
5158 offsets. We can't optimize earlier because some optimizations need
5159 to know the tp offset, and we need to optimize before allocating
5160 dynamic relocations. */
5163 ppc64_elf_tls_optimize (obfd
, info
)
5164 bfd
*obfd ATTRIBUTE_UNUSED
;
5165 struct bfd_link_info
*info
;
5169 struct ppc_link_hash_table
*htab
;
5171 if (info
->relocateable
|| info
->shared
)
5174 htab
= ppc_hash_table (info
);
5175 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5177 Elf_Internal_Sym
*locsyms
= NULL
;
5179 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5180 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5182 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5183 int expecting_tls_get_addr
;
5185 /* Read the relocations. */
5186 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
5187 (Elf_Internal_Rela
*) NULL
,
5189 if (relstart
== NULL
)
5192 expecting_tls_get_addr
= 0;
5193 relend
= relstart
+ sec
->reloc_count
;
5194 for (rel
= relstart
; rel
< relend
; rel
++)
5196 enum elf_ppc64_reloc_type r_type
;
5197 unsigned long r_symndx
;
5198 struct elf_link_hash_entry
*h
;
5199 Elf_Internal_Sym
*sym
;
5202 char tls_set
, tls_clear
, tls_type
= 0;
5204 bfd_boolean ok_tprel
, is_local
;
5206 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5207 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_mask
, &locsyms
,
5211 if (elf_section_data (sec
)->relocs
!= relstart
)
5214 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5215 != (unsigned char *) locsyms
))
5222 if (h
->root
.type
!= bfd_link_hash_defined
5223 && h
->root
.type
!= bfd_link_hash_defweak
)
5225 value
= h
->root
.u
.def
.value
;
5228 value
= sym
->st_value
;
5233 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5236 value
+= sym_sec
->output_offset
;
5237 value
+= sym_sec
->output_section
->vma
;
5238 value
-= htab
->tls_sec
->vma
;
5239 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
5240 < (bfd_vma
) 1 << 32);
5244 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
5247 case R_PPC64_GOT_TLSLD16
:
5248 case R_PPC64_GOT_TLSLD16_LO
:
5249 case R_PPC64_GOT_TLSLD16_HI
:
5250 case R_PPC64_GOT_TLSLD16_HA
:
5251 /* These relocs should never be against a symbol
5252 defined in a shared lib. Leave them alone if
5253 that turns out to be the case. */
5254 htab
->tlsld_got
.refcount
-= 1;
5261 tls_type
= TLS_TLS
| TLS_LD
;
5262 expecting_tls_get_addr
= 1;
5265 case R_PPC64_GOT_TLSGD16
:
5266 case R_PPC64_GOT_TLSGD16_LO
:
5267 case R_PPC64_GOT_TLSGD16_HI
:
5268 case R_PPC64_GOT_TLSGD16_HA
:
5274 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5276 tls_type
= TLS_TLS
| TLS_GD
;
5277 expecting_tls_get_addr
= 1;
5280 case R_PPC64_GOT_TPREL16_DS
:
5281 case R_PPC64_GOT_TPREL16_LO_DS
:
5282 case R_PPC64_GOT_TPREL16_HI
:
5283 case R_PPC64_GOT_TPREL16_HA
:
5284 expecting_tls_get_addr
= 0;
5289 tls_clear
= TLS_TPREL
;
5290 tls_type
= TLS_TLS
| TLS_TPREL
;
5297 case R_PPC64_REL14_BRTAKEN
:
5298 case R_PPC64_REL14_BRNTAKEN
:
5301 && h
== htab
->tls_get_addr
)
5303 if (!expecting_tls_get_addr
5305 && ((ELF64_R_TYPE (rel
[-1].r_info
)
5307 || (ELF64_R_TYPE (rel
[-1].r_info
)
5308 == R_PPC64_TOC16_LO
)))
5310 /* Check for toc tls entries. */
5314 retval
= get_tls_mask (&toc_tls
, &locsyms
,
5318 if (toc_tls
!= NULL
)
5319 expecting_tls_get_addr
= retval
> 1;
5322 if (expecting_tls_get_addr
)
5324 struct plt_entry
*ent
;
5325 for (ent
= h
->plt
.plist
; ent
; ent
= ent
->next
)
5326 if (ent
->addend
== 0)
5328 if (ent
->plt
.refcount
> 0)
5329 ent
->plt
.refcount
-= 1;
5334 expecting_tls_get_addr
= 0;
5337 case R_PPC64_TPREL64
:
5338 expecting_tls_get_addr
= 0;
5342 tls_set
= TLS_EXPLICIT
;
5343 tls_clear
= TLS_TPREL
;
5349 case R_PPC64_DTPMOD64
:
5350 expecting_tls_get_addr
= 0;
5351 if (rel
+ 1 < relend
5353 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
5354 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5358 tls_set
= TLS_EXPLICIT
| TLS_GD
;
5361 tls_set
= TLS_EXPLICIT
| TLS_GD
| TLS_TPRELGD
;
5370 tls_set
= TLS_EXPLICIT
;
5376 expecting_tls_get_addr
= 0;
5380 if ((tls_set
& TLS_EXPLICIT
) == 0)
5382 struct got_entry
*ent
;
5384 /* Adjust got entry for this reloc. */
5388 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
5390 for (; ent
!= NULL
; ent
= ent
->next
)
5391 if (ent
->addend
== rel
->r_addend
5392 && ent
->tls_type
== tls_type
)
5399 /* We managed to get rid of a got entry. */
5400 if (ent
->got
.refcount
> 0)
5401 ent
->got
.refcount
-= 1;
5406 struct ppc_link_hash_entry
* eh
;
5407 struct ppc_dyn_relocs
**pp
;
5408 struct ppc_dyn_relocs
*p
;
5410 /* Adjust dynamic relocs. */
5411 eh
= (struct ppc_link_hash_entry
*) h
;
5412 for (pp
= &eh
->dyn_relocs
;
5417 /* If we got rid of a DTPMOD/DTPREL reloc
5418 pair then we'll lose one or two dyn
5420 if (tls_set
== (TLS_EXPLICIT
| TLS_GD
))
5429 *tls_mask
|= tls_set
;
5430 *tls_mask
&= ~tls_clear
;
5433 if (elf_section_data (sec
)->relocs
!= relstart
)
5438 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5439 != (unsigned char *) locsyms
))
5441 if (!info
->keep_memory
)
5444 elf_tdata (ibfd
)->symtab_hdr
.contents
= (unsigned char *) locsyms
;
5450 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5451 will be called from elflink.h. If elflink.h doesn't call our
5452 finish_dynamic_symbol routine, we'll need to do something about
5453 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5454 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
5457 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5458 && ((H)->dynindx != -1 \
5459 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5461 /* Allocate space in .plt, .got and associated reloc sections for
5465 allocate_dynrelocs (h
, inf
)
5466 struct elf_link_hash_entry
*h
;
5469 struct bfd_link_info
*info
;
5470 struct ppc_link_hash_table
*htab
;
5472 struct ppc_link_hash_entry
*eh
;
5473 struct ppc_dyn_relocs
*p
;
5474 struct got_entry
*gent
;
5476 if (h
->root
.type
== bfd_link_hash_indirect
)
5479 if (h
->root
.type
== bfd_link_hash_warning
)
5480 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5482 info
= (struct bfd_link_info
*) inf
;
5483 htab
= ppc_hash_table (info
);
5485 if (htab
->elf
.dynamic_sections_created
5487 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
5489 struct plt_entry
*pent
;
5490 bfd_boolean doneone
= FALSE
;
5491 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
5492 if (pent
->plt
.refcount
> 0)
5494 BFD_ASSERT (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
);
5496 /* If this is the first .plt entry, make room for the special
5499 if (s
->_raw_size
== 0)
5500 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
5502 pent
->plt
.offset
= s
->_raw_size
;
5504 /* Make room for this entry. */
5505 s
->_raw_size
+= PLT_ENTRY_SIZE
;
5507 /* Make room for the .glink code. */
5509 if (s
->_raw_size
== 0)
5510 s
->_raw_size
+= GLINK_CALL_STUB_SIZE
;
5511 /* We need bigger stubs past index 32767. */
5512 if (s
->_raw_size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
5514 s
->_raw_size
+= 2*4;
5516 /* We also need to make an entry in the .rela.plt section. */
5518 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
5522 pent
->plt
.offset
= (bfd_vma
) -1;
5525 h
->plt
.plist
= NULL
;
5526 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5531 h
->plt
.plist
= NULL
;
5532 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5535 eh
= (struct ppc_link_hash_entry
*) h
;
5536 /* Run through the TLS GD got entries first if we're changing them
5538 if ((eh
->tls_mask
& TLS_TPRELGD
) != 0)
5539 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5540 if (gent
->got
.refcount
> 0
5541 && (gent
->tls_type
& TLS_GD
) != 0)
5543 /* This was a GD entry that has been converted to TPREL. If
5544 there happens to be a TPREL entry we can use that one. */
5545 struct got_entry
*ent
;
5546 for (ent
= h
->got
.glist
; ent
!= NULL
; ent
= ent
->next
)
5547 if (ent
->got
.refcount
> 0
5548 && (ent
->tls_type
& TLS_TPREL
) != 0
5549 && ent
->addend
== gent
->addend
)
5551 gent
->got
.refcount
= 0;
5555 /* If not, then we'll be using our own TPREL entry. */
5556 if (gent
->got
.refcount
!= 0)
5557 gent
->tls_type
= TLS_TLS
| TLS_TPREL
;
5560 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5561 if (gent
->got
.refcount
> 0)
5565 /* Make sure this symbol is output as a dynamic symbol.
5566 Undefined weak syms won't yet be marked as dynamic,
5567 nor will all TLS symbols. */
5568 if (h
->dynindx
== -1
5569 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5571 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5575 if ((gent
->tls_type
& TLS_LD
) != 0
5576 && !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5578 gent
->got
.offset
= htab
->tlsld_got
.offset
;
5583 gent
->got
.offset
= s
->_raw_size
;
5585 += (gent
->tls_type
& eh
->tls_mask
& (TLS_GD
| TLS_LD
)) ? 16 : 8;
5586 dyn
= htab
->elf
.dynamic_sections_created
;
5588 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
))
5589 htab
->srelgot
->_raw_size
5590 += (gent
->tls_type
& eh
->tls_mask
& TLS_GD
5591 ? 2 * sizeof (Elf64_External_Rela
)
5592 : sizeof (Elf64_External_Rela
));
5595 gent
->got
.offset
= (bfd_vma
) -1;
5597 if (eh
->dyn_relocs
== NULL
)
5600 /* In the shared -Bsymbolic case, discard space allocated for
5601 dynamic pc-relative relocs against symbols which turn out to be
5602 defined in regular objects. For the normal shared case, discard
5603 space for relocs that have become local due to symbol visibility
5608 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) != 0
5609 && ((h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
5612 struct ppc_dyn_relocs
**pp
;
5614 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
5616 p
->count
-= p
->pc_count
;
5625 else if (ELIMINATE_COPY_RELOCS
)
5627 /* For the non-shared case, discard space for relocs against
5628 symbols which turn out to need copy relocs or are not
5631 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
5632 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
5633 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
5635 /* Make sure this symbol is output as a dynamic symbol.
5636 Undefined weak syms won't yet be marked as dynamic. */
5637 if (h
->dynindx
== -1
5638 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5640 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5644 /* If that succeeded, we know we'll be keeping all the
5646 if (h
->dynindx
!= -1)
5650 eh
->dyn_relocs
= NULL
;
5655 /* Finally, allocate space. */
5656 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5658 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
5659 sreloc
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5665 /* Find any dynamic relocs that apply to read-only sections. */
5668 readonly_dynrelocs (h
, inf
)
5669 struct elf_link_hash_entry
*h
;
5672 struct ppc_link_hash_entry
*eh
;
5673 struct ppc_dyn_relocs
*p
;
5675 if (h
->root
.type
== bfd_link_hash_warning
)
5676 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5678 eh
= (struct ppc_link_hash_entry
*) h
;
5679 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5681 asection
*s
= p
->sec
->output_section
;
5683 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
5685 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
5687 info
->flags
|= DF_TEXTREL
;
5689 /* Not an error, just cut short the traversal. */
5696 /* Set the sizes of the dynamic sections. */
5699 ppc64_elf_size_dynamic_sections (output_bfd
, info
)
5700 bfd
*output_bfd ATTRIBUTE_UNUSED
;
5701 struct bfd_link_info
*info
;
5703 struct ppc_link_hash_table
*htab
;
5709 htab
= ppc_hash_table (info
);
5710 dynobj
= htab
->elf
.dynobj
;
5714 if (htab
->elf
.dynamic_sections_created
)
5716 /* Set the contents of the .interp section to the interpreter. */
5719 s
= bfd_get_section_by_name (dynobj
, ".interp");
5722 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
5723 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
5727 if (htab
->tlsld_got
.refcount
> 0)
5729 htab
->tlsld_got
.offset
= htab
->sgot
->_raw_size
;
5730 htab
->sgot
->_raw_size
+= 16;
5732 htab
->srelgot
->_raw_size
+= sizeof (Elf64_External_Rela
);
5735 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
5737 /* Set up .got offsets for local syms, and space for local dynamic
5739 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5741 struct got_entry
**lgot_ents
;
5742 struct got_entry
**end_lgot_ents
;
5744 bfd_size_type locsymcount
;
5745 Elf_Internal_Shdr
*symtab_hdr
;
5748 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
5751 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
5753 struct ppc_dyn_relocs
*p
;
5755 for (p
= *((struct ppc_dyn_relocs
**)
5756 &elf_section_data (s
)->local_dynrel
);
5760 if (!bfd_is_abs_section (p
->sec
)
5761 && bfd_is_abs_section (p
->sec
->output_section
))
5763 /* Input section has been discarded, either because
5764 it is a copy of a linkonce section or due to
5765 linker script /DISCARD/, so we'll be discarding
5768 else if (p
->count
!= 0)
5770 srel
= elf_section_data (p
->sec
)->sreloc
;
5771 srel
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5772 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
5773 info
->flags
|= DF_TEXTREL
;
5778 lgot_ents
= elf_local_got_ents (ibfd
);
5782 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
5783 locsymcount
= symtab_hdr
->sh_info
;
5784 end_lgot_ents
= lgot_ents
+ locsymcount
;
5785 lgot_masks
= (char *) end_lgot_ents
;
5787 srel
= htab
->srelgot
;
5788 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
5790 struct got_entry
*ent
;
5792 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
5793 if (ent
->got
.refcount
> 0)
5795 if ((ent
->tls_type
& *lgot_masks
& TLS_LD
) != 0)
5797 if (htab
->tlsld_got
.offset
== (bfd_vma
) -1)
5799 htab
->tlsld_got
.offset
= s
->_raw_size
;
5802 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5804 ent
->got
.offset
= htab
->tlsld_got
.offset
;
5808 ent
->got
.offset
= s
->_raw_size
;
5809 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
5813 srel
->_raw_size
+= 2 * sizeof (Elf64_External_Rela
);
5819 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5824 ent
->got
.offset
= (bfd_vma
) -1;
5828 /* Allocate global sym .plt and .got entries, and space for global
5829 sym dynamic relocs. */
5830 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
5832 /* We now have determined the sizes of the various dynamic sections.
5833 Allocate memory for them. */
5835 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
5837 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
5840 /* Reset _cooked_size since prelim layout will set it wrongly,
5841 and a non-zero _cooked_size sticks. */
5842 s
->_cooked_size
= 0;
5844 if (s
== htab
->sbrlt
|| s
== htab
->srelbrlt
)
5845 /* These haven't been allocated yet; don't strip. */
5847 else if (s
== htab
->splt
5849 || s
== htab
->sglink
)
5851 /* Strip this section if we don't need it; see the
5854 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
5856 if (s
->_raw_size
== 0)
5858 /* If we don't need this section, strip it from the
5859 output file. This is mostly to handle .rela.bss and
5860 .rela.plt. We must create both sections in
5861 create_dynamic_sections, because they must be created
5862 before the linker maps input sections to output
5863 sections. The linker does that before
5864 adjust_dynamic_symbol is called, and it is that
5865 function which decides whether anything needs to go
5866 into these sections. */
5870 if (s
!= htab
->srelplt
)
5873 /* We use the reloc_count field as a counter if we need
5874 to copy relocs into the output file. */
5880 /* It's not one of our sections, so don't allocate space. */
5884 if (s
->_raw_size
== 0)
5886 _bfd_strip_section_from_output (info
, s
);
5890 /* .plt is in the bss section. We don't initialise it. */
5891 if ((s
->flags
& SEC_LOAD
) == 0)
5894 /* Allocate memory for the section contents. We use bfd_zalloc
5895 here in case unused entries are not reclaimed before the
5896 section's contents are written out. This should not happen,
5897 but this way if it does we get a R_PPC64_NONE reloc in .rela
5898 sections instead of garbage.
5899 We also rely on the section contents being zero when writing
5901 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
5902 if (s
->contents
== NULL
)
5906 if (htab
->elf
.dynamic_sections_created
)
5908 /* Add some entries to the .dynamic section. We fill in the
5909 values later, in ppc64_elf_finish_dynamic_sections, but we
5910 must add the entries now so that we get the correct size for
5911 the .dynamic section. The DT_DEBUG entry is filled in by the
5912 dynamic linker and used by the debugger. */
5913 #define add_dynamic_entry(TAG, VAL) \
5914 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5918 if (!add_dynamic_entry (DT_DEBUG
, 0))
5922 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
5924 if (!add_dynamic_entry (DT_PLTGOT
, 0)
5925 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
5926 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
5927 || !add_dynamic_entry (DT_JMPREL
, 0)
5928 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
5934 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
5935 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
5941 if (!add_dynamic_entry (DT_RELA
, 0)
5942 || !add_dynamic_entry (DT_RELASZ
, 0)
5943 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
5946 /* If any dynamic relocs apply to a read-only section,
5947 then we need a DT_TEXTREL entry. */
5948 if ((info
->flags
& DF_TEXTREL
) == 0)
5949 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
5952 if ((info
->flags
& DF_TEXTREL
) != 0)
5954 if (!add_dynamic_entry (DT_TEXTREL
, 0))
5959 #undef add_dynamic_entry
5964 /* Determine the type of stub needed, if any, for a call. */
5966 static INLINE
enum ppc_stub_type
5967 ppc_type_of_stub (input_sec
, rel
, hash
, destination
)
5968 asection
*input_sec
;
5969 const Elf_Internal_Rela
*rel
;
5970 struct ppc_link_hash_entry
**hash
;
5971 bfd_vma destination
;
5973 struct ppc_link_hash_entry
*h
= *hash
;
5975 bfd_vma branch_offset
;
5976 bfd_vma max_branch_offset
;
5977 unsigned int r_type
;
5982 && h
->oh
->dynindx
!= -1)
5984 struct plt_entry
*ent
;
5985 for (ent
= h
->oh
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
5986 if (ent
->addend
== rel
->r_addend
5987 && ent
->plt
.offset
!= (bfd_vma
) -1)
5989 *hash
= (struct ppc_link_hash_entry
*) h
->oh
;
5990 return ppc_stub_plt_call
;
5994 if (h
->elf
.root
.type
== bfd_link_hash_undefweak
5995 || h
->elf
.root
.type
== bfd_link_hash_undefined
)
5996 return ppc_stub_none
;
5999 /* Determine where the call point is. */
6000 location
= (input_sec
->output_offset
6001 + input_sec
->output_section
->vma
6004 branch_offset
= destination
- location
;
6005 r_type
= ELF64_R_TYPE (rel
->r_info
);
6007 /* Determine if a long branch stub is needed. */
6008 max_branch_offset
= 1 << 25;
6009 if (r_type
!= (unsigned int) R_PPC64_REL24
)
6010 max_branch_offset
= 1 << 15;
6012 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
)
6013 /* We need a stub. Figure out whether a long_branch or plt_branch
6015 return ppc_stub_long_branch
;
6017 return ppc_stub_none
;
6020 /* Build a .plt call stub. */
6023 build_plt_stub (obfd
, p
, offset
, glink
)
6029 #define PPC_LO(v) ((v) & 0xffff)
6030 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6031 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6034 bfd_put_32 (obfd
, LD_R2_40R1
, p
), p
+= 4;
6035 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
6037 bfd_put_32 (obfd
, STD_R2_40R1
, p
), p
+= 4;
6038 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6039 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6040 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6042 bfd_put_32 (obfd
, LD_R2_0R12
| PPC_LO (offset
), p
), p
+= 4;
6043 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6044 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6046 bfd_put_32 (obfd
, MTCTR_R11
, p
), p
+= 4;
6047 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6048 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
6053 ppc_build_one_stub (gen_entry
, in_arg
)
6054 struct bfd_hash_entry
*gen_entry
;
6057 struct ppc_stub_hash_entry
*stub_entry
;
6058 struct ppc_branch_hash_entry
*br_entry
;
6059 struct bfd_link_info
*info
;
6060 struct ppc_link_hash_table
*htab
;
6066 struct plt_entry
*ent
;
6070 /* Massage our args to the form they really have. */
6071 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6072 info
= (struct bfd_link_info
*) in_arg
;
6074 htab
= ppc_hash_table (info
);
6075 stub_sec
= stub_entry
->stub_sec
;
6077 /* Make a note of the offset within the stubs for this entry. */
6078 stub_entry
->stub_offset
= stub_sec
->_cooked_size
;
6079 loc
= stub_sec
->contents
+ stub_entry
->stub_offset
;
6081 stub_bfd
= stub_sec
->owner
;
6083 switch (stub_entry
->stub_type
)
6085 case ppc_stub_long_branch
:
6086 /* Branches are relative. This is where we are going to. */
6087 off
= (stub_entry
->target_value
6088 + stub_entry
->target_section
->output_offset
6089 + stub_entry
->target_section
->output_section
->vma
);
6091 /* And this is where we are coming from. */
6092 off
-= (stub_entry
->stub_offset
6093 + stub_sec
->output_offset
6094 + stub_sec
->output_section
->vma
);
6096 BFD_ASSERT (off
+ (1 << 25) < (bfd_vma
) (1 << 26));
6098 bfd_put_32 (stub_bfd
, (bfd_vma
) B_DOT
| (off
& 0x3fffffc), loc
);
6102 case ppc_stub_plt_branch
:
6103 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6104 stub_entry
->root
.string
+ 9,
6106 if (br_entry
== NULL
)
6108 (*_bfd_error_handler
) (_("can't find branch stub `%s'"),
6109 stub_entry
->root
.string
+ 9);
6110 htab
->stub_error
= TRUE
;
6114 off
= (stub_entry
->target_value
6115 + stub_entry
->target_section
->output_offset
6116 + stub_entry
->target_section
->output_section
->vma
);
6118 bfd_put_64 (htab
->sbrlt
->owner
, off
,
6119 htab
->sbrlt
->contents
+ br_entry
->offset
);
6123 /* Create a reloc for the branch lookup table entry. */
6124 Elf_Internal_Rela rela
;
6127 rela
.r_offset
= (br_entry
->offset
6128 + htab
->sbrlt
->output_offset
6129 + htab
->sbrlt
->output_section
->vma
);
6130 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
6131 rela
.r_addend
= off
;
6133 loc
= htab
->srelbrlt
->contents
;
6134 loc
+= htab
->srelbrlt
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6135 bfd_elf64_swap_reloca_out (htab
->srelbrlt
->owner
, &rela
, loc
);
6138 off
= (br_entry
->offset
6139 + htab
->sbrlt
->output_offset
6140 + htab
->sbrlt
->output_section
->vma
6141 - elf_gp (htab
->sbrlt
->output_section
->owner
)
6144 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6146 (*_bfd_error_handler
)
6147 (_("linkage table error against `%s'"),
6148 stub_entry
->root
.string
);
6149 bfd_set_error (bfd_error_bad_value
);
6150 htab
->stub_error
= TRUE
;
6155 bfd_put_32 (stub_bfd
, (bfd_vma
) ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6156 bfd_put_32 (stub_bfd
, (bfd_vma
) LD_R11_0R12
| PPC_LO (indx
), loc
+ 4);
6157 bfd_put_32 (stub_bfd
, (bfd_vma
) MTCTR_R11
, loc
+ 8);
6158 bfd_put_32 (stub_bfd
, (bfd_vma
) BCTR
, loc
+ 12);
6162 case ppc_stub_plt_call
:
6163 /* Do the best we can for shared libraries built without
6164 exporting ".foo" for each "foo". This can happen when symbol
6165 versioning scripts strip all bar a subset of symbols. */
6166 if (stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defined
6167 && stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defweak
)
6169 /* Point the symbol at the stub. There may be multiple stubs,
6170 we don't really care; The main thing is to make this sym
6171 defined somewhere. */
6172 stub_entry
->h
->oh
->root
.type
= bfd_link_hash_defined
;
6173 stub_entry
->h
->oh
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6174 stub_entry
->h
->oh
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6177 /* Now build the stub. */
6179 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6180 if (ent
->addend
== stub_entry
->addend
)
6182 off
= ent
->plt
.offset
;
6185 if (off
>= (bfd_vma
) -2)
6188 off
&= ~ (bfd_vma
) 1;
6189 off
+= (htab
->splt
->output_offset
6190 + htab
->splt
->output_section
->vma
6191 - elf_gp (htab
->splt
->output_section
->owner
)
6194 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6196 (*_bfd_error_handler
)
6197 (_("linkage table error against `%s'"),
6198 stub_entry
->h
->elf
.root
.root
.string
);
6199 bfd_set_error (bfd_error_bad_value
);
6200 htab
->stub_error
= TRUE
;
6204 p
= build_plt_stub (stub_bfd
, loc
, (int) off
, 0);
6213 stub_sec
->_cooked_size
+= size
;
6217 /* As above, but don't actually build the stub. Just bump offset so
6218 we know stub section sizes, and select plt_branch stubs where
6219 long_branch stubs won't do. */
6222 ppc_size_one_stub (gen_entry
, in_arg
)
6223 struct bfd_hash_entry
*gen_entry
;
6226 struct ppc_stub_hash_entry
*stub_entry
;
6227 struct ppc_link_hash_table
*htab
;
6231 /* Massage our args to the form they really have. */
6232 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6233 htab
= (struct ppc_link_hash_table
*) in_arg
;
6235 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
6237 struct plt_entry
*ent
;
6239 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6240 if (ent
->addend
== stub_entry
->addend
)
6242 off
= ent
->plt
.offset
& ~(bfd_vma
) 1;
6245 if (off
>= (bfd_vma
) -2)
6247 off
+= (htab
->splt
->output_offset
6248 + htab
->splt
->output_section
->vma
6249 - elf_gp (htab
->splt
->output_section
->owner
)
6253 if (PPC_HA ((int) off
+ 16) != PPC_HA ((int) off
))
6258 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6259 stub_entry
->stub_type
= ppc_stub_long_branch
;
6262 off
= (stub_entry
->target_value
6263 + stub_entry
->target_section
->output_offset
6264 + stub_entry
->target_section
->output_section
->vma
);
6265 off
-= (stub_entry
->stub_sec
->_raw_size
6266 + stub_entry
->stub_sec
->output_offset
6267 + stub_entry
->stub_sec
->output_section
->vma
);
6269 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
6271 struct ppc_branch_hash_entry
*br_entry
;
6273 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6274 stub_entry
->root
.string
+ 9,
6276 if (br_entry
== NULL
)
6278 (*_bfd_error_handler
) (_("can't build branch stub `%s'"),
6279 stub_entry
->root
.string
+ 9);
6280 htab
->stub_error
= TRUE
;
6284 if (br_entry
->iter
!= htab
->stub_iteration
)
6286 br_entry
->iter
= htab
->stub_iteration
;
6287 br_entry
->offset
= htab
->sbrlt
->_raw_size
;
6288 htab
->sbrlt
->_raw_size
+= 8;
6290 stub_entry
->stub_type
= ppc_stub_plt_branch
;
6295 stub_entry
->stub_sec
->_raw_size
+= size
;
6299 /* Set up various things so that we can make a list of input sections
6300 for each output section included in the link. Returns -1 on error,
6301 0 when no stubs will be needed, and 1 on success. */
6304 ppc64_elf_setup_section_lists (output_bfd
, info
)
6306 struct bfd_link_info
*info
;
6309 int top_id
, top_index
;
6311 asection
**input_list
, **list
;
6313 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6315 if (htab
->elf
.root
.creator
->flavour
!= bfd_target_elf_flavour
6316 || htab
->sbrlt
== NULL
)
6319 /* Find the top input section id. */
6320 for (input_bfd
= info
->input_bfds
, top_id
= 0;
6322 input_bfd
= input_bfd
->link_next
)
6324 for (section
= input_bfd
->sections
;
6326 section
= section
->next
)
6328 if (top_id
< section
->id
)
6329 top_id
= section
->id
;
6333 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
6334 htab
->stub_group
= (struct map_stub
*) bfd_zmalloc (amt
);
6335 if (htab
->stub_group
== NULL
)
6338 /* We can't use output_bfd->section_count here to find the top output
6339 section index as some sections may have been removed, and
6340 _bfd_strip_section_from_output doesn't renumber the indices. */
6341 for (section
= output_bfd
->sections
, top_index
= 0;
6343 section
= section
->next
)
6345 if (top_index
< section
->index
)
6346 top_index
= section
->index
;
6349 htab
->top_index
= top_index
;
6350 amt
= sizeof (asection
*) * (top_index
+ 1);
6351 input_list
= (asection
**) bfd_malloc (amt
);
6352 htab
->input_list
= input_list
;
6353 if (input_list
== NULL
)
6356 /* For sections we aren't interested in, mark their entries with a
6357 value we can check later. */
6358 list
= input_list
+ top_index
;
6360 *list
= bfd_abs_section_ptr
;
6361 while (list
-- != input_list
);
6363 for (section
= output_bfd
->sections
;
6365 section
= section
->next
)
6367 if ((section
->flags
& SEC_CODE
) != 0)
6368 input_list
[section
->index
] = NULL
;
6374 /* The linker repeatedly calls this function for each input section,
6375 in the order that input sections are linked into output sections.
6376 Build lists of input sections to determine groupings between which
6377 we may insert linker stubs. */
6380 ppc64_elf_next_input_section (info
, isec
)
6381 struct bfd_link_info
*info
;
6384 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6386 if (isec
->output_section
->index
<= htab
->top_index
)
6388 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
6389 if (*list
!= bfd_abs_section_ptr
)
6391 /* Steal the link_sec pointer for our list. */
6392 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6393 /* This happens to make the list in reverse order,
6394 which is what we want. */
6395 PREV_SEC (isec
) = *list
;
6401 /* See whether we can group stub sections together. Grouping stub
6402 sections may result in fewer stubs. More importantly, we need to
6403 put all .init* and .fini* stubs at the beginning of the .init or
6404 .fini output sections respectively, because glibc splits the
6405 _init and _fini functions into multiple parts. Putting a stub in
6406 the middle of a function is not a good idea. */
6409 group_sections (htab
, stub_group_size
, stubs_always_before_branch
)
6410 struct ppc_link_hash_table
*htab
;
6411 bfd_size_type stub_group_size
;
6412 bfd_boolean stubs_always_before_branch
;
6414 asection
**list
= htab
->input_list
+ htab
->top_index
;
6417 asection
*tail
= *list
;
6418 if (tail
== bfd_abs_section_ptr
)
6420 while (tail
!= NULL
)
6424 bfd_size_type total
;
6425 bfd_boolean big_sec
;
6428 if (tail
->_cooked_size
)
6429 total
= tail
->_cooked_size
;
6431 total
= tail
->_raw_size
;
6432 big_sec
= total
>= stub_group_size
;
6434 while ((prev
= PREV_SEC (curr
)) != NULL
6435 && ((total
+= curr
->output_offset
- prev
->output_offset
)
6439 /* OK, the size from the start of CURR to the end is less
6440 than stub_group_size and thus can be handled by one stub
6441 section. (or the tail section is itself larger than
6442 stub_group_size, in which case we may be toast.) We
6443 should really be keeping track of the total size of stubs
6444 added here, as stubs contribute to the final output
6445 section size. That's a little tricky, and this way will
6446 only break if stubs added make the total size more than
6447 2^25, ie. for the default stub_group_size, if stubs total
6448 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6451 prev
= PREV_SEC (tail
);
6452 /* Set up this stub group. */
6453 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6455 while (tail
!= curr
&& (tail
= prev
) != NULL
);
6457 /* But wait, there's more! Input sections up to stub_group_size
6458 bytes before the stub section can be handled by it too.
6459 Don't do this if we have a really large section after the
6460 stubs, as adding more stubs increases the chance that
6461 branches may not reach into the stub section. */
6462 if (!stubs_always_before_branch
&& !big_sec
)
6466 && ((total
+= tail
->output_offset
- prev
->output_offset
)
6470 prev
= PREV_SEC (tail
);
6471 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6477 while (list
-- != htab
->input_list
);
6478 free (htab
->input_list
);
6482 /* Determine and set the size of the stub section for a final link.
6484 The basic idea here is to examine all the relocations looking for
6485 PC-relative calls to a target that is unreachable with a "bl"
6489 ppc64_elf_size_stubs (output_bfd
, stub_bfd
, info
, group_size
,
6490 add_stub_section
, layout_sections_again
)
6493 struct bfd_link_info
*info
;
6494 bfd_signed_vma group_size
;
6495 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
6496 void (*layout_sections_again
) PARAMS ((void));
6498 bfd_size_type stub_group_size
;
6499 bfd_boolean stubs_always_before_branch
;
6500 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6502 /* Stash our params away. */
6503 htab
->stub_bfd
= stub_bfd
;
6504 htab
->add_stub_section
= add_stub_section
;
6505 htab
->layout_sections_again
= layout_sections_again
;
6506 stubs_always_before_branch
= group_size
< 0;
6508 stub_group_size
= -group_size
;
6510 stub_group_size
= group_size
;
6511 if (stub_group_size
== 1)
6513 /* Default values. */
6514 if (stubs_always_before_branch
)
6516 stub_group_size
= 0x1e00000;
6517 if (htab
->has_14bit_branch
)
6518 stub_group_size
= 0x7800;
6522 stub_group_size
= 0x1c00000;
6523 if (htab
->has_14bit_branch
)
6524 stub_group_size
= 0x7000;
6528 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
6533 unsigned int bfd_indx
;
6535 bfd_boolean stub_changed
;
6537 htab
->stub_iteration
+= 1;
6538 stub_changed
= FALSE
;
6540 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
6542 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
6544 Elf_Internal_Shdr
*symtab_hdr
;
6546 Elf_Internal_Sym
*local_syms
= NULL
;
6548 /* We'll need the symbol table in a second. */
6549 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6550 if (symtab_hdr
->sh_info
== 0)
6553 /* Walk over each section attached to the input bfd. */
6554 for (section
= input_bfd
->sections
;
6556 section
= section
->next
)
6558 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
6560 /* If there aren't any relocs, then there's nothing more
6562 if ((section
->flags
& SEC_RELOC
) == 0
6563 || section
->reloc_count
== 0)
6566 /* If this section is a link-once section that will be
6567 discarded, then don't create any stubs. */
6568 if (section
->output_section
== NULL
6569 || section
->output_section
->owner
!= output_bfd
)
6572 /* Get the relocs. */
6574 = _bfd_elf64_link_read_relocs (input_bfd
, section
, NULL
,
6575 (Elf_Internal_Rela
*) NULL
,
6577 if (internal_relocs
== NULL
)
6578 goto error_ret_free_local
;
6580 /* Now examine each relocation. */
6581 irela
= internal_relocs
;
6582 irelaend
= irela
+ section
->reloc_count
;
6583 for (; irela
< irelaend
; irela
++)
6585 unsigned int r_type
, r_indx
;
6586 enum ppc_stub_type stub_type
;
6587 struct ppc_stub_hash_entry
*stub_entry
;
6590 bfd_vma destination
;
6591 struct ppc_link_hash_entry
*hash
;
6592 struct elf_link_hash_entry
*h
;
6593 Elf_Internal_Sym
*sym
;
6595 const asection
*id_sec
;
6597 r_type
= ELF64_R_TYPE (irela
->r_info
);
6598 r_indx
= ELF64_R_SYM (irela
->r_info
);
6600 if (r_type
>= (unsigned int) R_PPC64_max
)
6602 bfd_set_error (bfd_error_bad_value
);
6603 goto error_ret_free_internal
;
6606 /* Only look for stubs on branch instructions. */
6607 if (r_type
!= (unsigned int) R_PPC64_REL24
6608 && r_type
!= (unsigned int) R_PPC64_REL14
6609 && r_type
!= (unsigned int) R_PPC64_REL14_BRTAKEN
6610 && r_type
!= (unsigned int) R_PPC64_REL14_BRNTAKEN
)
6613 /* Now determine the call target, its name, value,
6616 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
6618 goto error_ret_free_internal
;
6619 hash
= (struct ppc_link_hash_entry
*) h
;
6623 /* It's a local symbol. */
6624 sym_value
= sym
->st_value
;
6625 destination
= (sym_value
+ irela
->r_addend
6626 + sym_sec
->output_offset
6627 + sym_sec
->output_section
->vma
);
6631 /* It's an external symbol. */
6633 if (hash
->elf
.root
.type
== bfd_link_hash_defined
6634 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
6636 sym_value
= hash
->elf
.root
.u
.def
.value
;
6637 if (sym_sec
->output_section
!= NULL
)
6638 destination
= (sym_value
+ irela
->r_addend
6639 + sym_sec
->output_offset
6640 + sym_sec
->output_section
->vma
);
6642 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
)
6644 else if (hash
->elf
.root
.type
== bfd_link_hash_undefined
)
6648 bfd_set_error (bfd_error_bad_value
);
6649 goto error_ret_free_internal
;
6653 /* Determine what (if any) linker stub is needed. */
6654 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
6656 if (stub_type
== ppc_stub_none
)
6659 /* __tls_get_addr calls might be eliminated. */
6660 if (stub_type
!= ppc_stub_plt_call
6662 && &hash
->elf
== htab
->tls_get_addr
6663 && section
->has_tls_reloc
6664 && irela
!= internal_relocs
)
6669 if (!get_tls_mask (&tls_mask
, &local_syms
,
6670 irela
- 1, input_bfd
))
6671 goto error_ret_free_internal
;
6676 /* Support for grouping stub sections. */
6677 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
6679 /* Get the name of this stub. */
6680 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
6682 goto error_ret_free_internal
;
6684 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
6685 stub_name
, FALSE
, FALSE
);
6686 if (stub_entry
!= NULL
)
6688 /* The proper stub has already been created. */
6693 stub_entry
= ppc_add_stub (stub_name
, section
, htab
);
6694 if (stub_entry
== NULL
)
6697 error_ret_free_internal
:
6698 if (elf_section_data (section
)->relocs
== NULL
)
6699 free (internal_relocs
);
6700 error_ret_free_local
:
6701 if (local_syms
!= NULL
6702 && (symtab_hdr
->contents
6703 != (unsigned char *) local_syms
))
6708 stub_entry
->target_value
= sym_value
;
6709 stub_entry
->target_section
= sym_sec
;
6710 stub_entry
->stub_type
= stub_type
;
6711 stub_entry
->h
= hash
;
6712 stub_entry
->addend
= irela
->r_addend
;
6713 stub_changed
= TRUE
;
6716 /* We're done with the internal relocs, free them. */
6717 if (elf_section_data (section
)->relocs
!= internal_relocs
)
6718 free (internal_relocs
);
6721 if (local_syms
!= NULL
6722 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
6724 if (!info
->keep_memory
)
6727 symtab_hdr
->contents
= (unsigned char *) local_syms
;
6734 /* OK, we've added some stubs. Find out the new size of the
6736 for (stub_sec
= htab
->stub_bfd
->sections
;
6738 stub_sec
= stub_sec
->next
)
6740 stub_sec
->_raw_size
= 0;
6741 stub_sec
->_cooked_size
= 0;
6743 htab
->sbrlt
->_raw_size
= 0;
6744 htab
->sbrlt
->_cooked_size
= 0;
6746 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, htab
);
6748 /* Ask the linker to do its stuff. */
6749 (*htab
->layout_sections_again
) ();
6752 /* It would be nice to strip .branch_lt from the output if the
6753 section is empty, but it's too late. If we strip sections here,
6754 the dynamic symbol table is corrupted since the section symbol
6755 for the stripped section isn't written. */
6760 /* Called after we have determined section placement. If sections
6761 move, we'll be called again. Provide a value for TOCstart. */
6764 ppc64_elf_toc (obfd
)
6770 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6771 order. The TOC starts where the first of these sections starts. */
6772 s
= bfd_get_section_by_name (obfd
, ".got");
6774 s
= bfd_get_section_by_name (obfd
, ".toc");
6776 s
= bfd_get_section_by_name (obfd
, ".tocbss");
6778 s
= bfd_get_section_by_name (obfd
, ".plt");
6781 /* This may happen for
6782 o references to TOC base (SYM@toc / TOC[tc0]) without a
6785 o --gc-sections and empty TOC sections
6787 FIXME: Warn user? */
6789 /* Look for a likely section. We probably won't even be
6791 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6792 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
))
6793 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6796 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6797 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
))
6798 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6801 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6802 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
)) == SEC_ALLOC
)
6805 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6806 if ((s
->flags
& SEC_ALLOC
) == SEC_ALLOC
)
6812 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
6817 /* Build all the stubs associated with the current output file.
6818 The stubs are kept in a hash table attached to the main linker
6819 hash table. This function is called via gldelf64ppc_finish. */
6822 ppc64_elf_build_stubs (info
)
6823 struct bfd_link_info
*info
;
6825 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6830 for (stub_sec
= htab
->stub_bfd
->sections
;
6832 stub_sec
= stub_sec
->next
)
6836 /* Allocate memory to hold the linker stubs. */
6837 size
= stub_sec
->_raw_size
;
6840 stub_sec
->contents
= (bfd_byte
*) bfd_zalloc (htab
->stub_bfd
, size
);
6841 if (stub_sec
->contents
== NULL
)
6844 stub_sec
->_cooked_size
= 0;
6847 if (htab
->splt
!= NULL
)
6851 /* Build the .glink plt call stub. */
6852 plt_r2
= (htab
->splt
->output_offset
6853 + htab
->splt
->output_section
->vma
6854 - elf_gp (htab
->splt
->output_section
->owner
)
6856 p
= htab
->sglink
->contents
;
6857 p
= build_plt_stub (htab
->sglink
->owner
, p
, (int) plt_r2
, 1);
6858 while (p
< htab
->sglink
->contents
+ GLINK_CALL_STUB_SIZE
)
6860 bfd_put_32 (htab
->sglink
->owner
, NOP
, p
);
6864 /* Build the .glink lazy link call stubs. */
6866 while (p
< htab
->sglink
->contents
+ htab
->sglink
->_raw_size
)
6870 bfd_put_32 (htab
->sglink
->owner
, LI_R0_0
| indx
, p
);
6875 bfd_put_32 (htab
->sglink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
6877 bfd_put_32 (htab
->sglink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
), p
);
6880 bfd_put_32 (htab
->sglink
->owner
,
6881 B_DOT
| ((htab
->sglink
->contents
- p
) & 0x3fffffc), p
);
6885 htab
->sglink
->_cooked_size
= p
- htab
->sglink
->contents
;
6888 if (htab
->sbrlt
->_raw_size
!= 0)
6890 htab
->sbrlt
->contents
= (bfd_byte
*) bfd_zalloc (htab
->sbrlt
->owner
,
6891 htab
->sbrlt
->_raw_size
);
6892 if (htab
->sbrlt
->contents
== NULL
)
6896 /* Build the stubs as directed by the stub hash table. */
6897 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
6899 for (stub_sec
= htab
->stub_bfd
->sections
;
6901 stub_sec
= stub_sec
->next
)
6903 if (stub_sec
->_raw_size
!= stub_sec
->_cooked_size
)
6907 if (stub_sec
!= NULL
6908 || htab
->sglink
->_raw_size
!= htab
->sglink
->_cooked_size
)
6910 htab
->stub_error
= TRUE
;
6911 (*_bfd_error_handler
) (_("stubs don't match calculated size"));
6914 return !htab
->stub_error
;
6917 /* The RELOCATE_SECTION function is called by the ELF backend linker
6918 to handle the relocations for a section.
6920 The relocs are always passed as Rela structures; if the section
6921 actually uses Rel structures, the r_addend field will always be
6924 This function is responsible for adjust the section contents as
6925 necessary, and (if using Rela relocs and generating a
6926 relocateable output file) adjusting the reloc addend as
6929 This function does not have to worry about setting the reloc
6930 address or the reloc symbol index.
6932 LOCAL_SYMS is a pointer to the swapped in local symbols.
6934 LOCAL_SECTIONS is an array giving the section in the input file
6935 corresponding to the st_shndx field of each local symbol.
6937 The global hash table entry for the global symbols can be found
6938 via elf_sym_hashes (input_bfd).
6940 When generating relocateable output, this function must handle
6941 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6942 going to be the section symbol corresponding to the output
6943 section, which means that the addend must be adjusted
6947 ppc64_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6948 contents
, relocs
, local_syms
, local_sections
)
6950 struct bfd_link_info
*info
;
6952 asection
*input_section
;
6954 Elf_Internal_Rela
*relocs
;
6955 Elf_Internal_Sym
*local_syms
;
6956 asection
**local_sections
;
6958 struct ppc_link_hash_table
*htab
;
6959 Elf_Internal_Shdr
*symtab_hdr
;
6960 struct elf_link_hash_entry
**sym_hashes
;
6961 Elf_Internal_Rela
*rel
;
6962 Elf_Internal_Rela
*relend
;
6963 Elf_Internal_Rela outrel
;
6965 struct got_entry
**local_got_ents
;
6967 bfd_boolean ret
= TRUE
;
6969 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
6970 bfd_boolean is_power4
= FALSE
;
6972 if (info
->relocateable
)
6975 /* Initialize howto table if needed. */
6976 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
6979 htab
= ppc_hash_table (info
);
6980 local_got_ents
= elf_local_got_ents (input_bfd
);
6981 TOCstart
= elf_gp (output_bfd
);
6982 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6983 sym_hashes
= elf_sym_hashes (input_bfd
);
6984 is_opd
= ppc64_elf_section_data (input_section
)->opd
.adjust
!= NULL
;
6987 relend
= relocs
+ input_section
->reloc_count
;
6988 for (; rel
< relend
; rel
++)
6990 enum elf_ppc64_reloc_type r_type
;
6992 bfd_reloc_status_type r
;
6993 Elf_Internal_Sym
*sym
;
6995 struct elf_link_hash_entry
*h
;
6996 struct elf_link_hash_entry
*fdh
;
6997 const char *sym_name
;
6998 unsigned long r_symndx
;
6999 char tls_mask
, tls_gd
, tls_type
;
7001 bfd_boolean unresolved_reloc
;
7004 struct ppc_stub_hash_entry
*stub_entry
;
7005 bfd_vma max_br_offset
;
7008 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
7009 r_symndx
= ELF64_R_SYM (rel
->r_info
);
7010 sym
= (Elf_Internal_Sym
*) 0;
7011 sec
= (asection
*) 0;
7012 h
= (struct elf_link_hash_entry
*) 0;
7013 sym_name
= (const char *) 0;
7014 unresolved_reloc
= FALSE
;
7017 if (r_type
== R_PPC64_TOC
)
7019 /* Relocation value is TOC base. Symbol is ignored. */
7020 relocation
= TOCstart
+ TOC_BASE_OFF
;
7022 else if (r_symndx
< symtab_hdr
->sh_info
)
7024 /* It's a local symbol. */
7025 sym
= local_syms
+ r_symndx
;
7026 sec
= local_sections
[r_symndx
];
7027 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
7028 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
7029 if (elf_section_data (sec
) != NULL
)
7031 long *opd_sym_adjust
;
7033 opd_sym_adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
7034 if (opd_sym_adjust
!= NULL
&& sym
->st_value
% 24 == 0)
7035 relocation
+= opd_sym_adjust
[sym
->st_value
/ 24];
7040 /* It's a global symbol. */
7041 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7042 while (h
->root
.type
== bfd_link_hash_indirect
7043 || h
->root
.type
== bfd_link_hash_warning
)
7044 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7045 sym_name
= h
->root
.root
.string
;
7047 if (h
->root
.type
== bfd_link_hash_defined
7048 || h
->root
.type
== bfd_link_hash_defweak
)
7050 sec
= h
->root
.u
.def
.section
;
7051 if (sec
->output_section
== NULL
)
7052 /* Set a flag that will be cleared later if we find a
7053 relocation value for this symbol. output_section
7054 is typically NULL for symbols satisfied by a shared
7056 unresolved_reloc
= TRUE
;
7058 relocation
= (h
->root
.u
.def
.value
7059 + sec
->output_section
->vma
7060 + sec
->output_offset
);
7062 else if (h
->root
.type
== bfd_link_hash_undefweak
)
7064 else if (info
->shared
7065 && !info
->no_undefined
7066 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
7070 if (! ((*info
->callbacks
->undefined_symbol
)
7071 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
7072 rel
->r_offset
, (!info
->shared
7073 || info
->no_undefined
7074 || ELF_ST_VISIBILITY (h
->other
)))))
7080 /* TLS optimizations. Replace instruction sequences and relocs
7081 based on information we collected in tls_optimize. We edit
7082 RELOCS so that --emit-relocs will output something sensible
7083 for the final instruction stream. */
7086 if (IS_PPC64_TLS_RELOC (r_type
))
7089 tls_mask
= ((struct ppc_link_hash_entry
*) h
)->tls_mask
;
7090 else if (local_got_ents
!= NULL
)
7093 lgot_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
7094 tls_mask
= lgot_masks
[r_symndx
];
7098 /* Ensure reloc mapping code below stays sane. */
7099 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
7100 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
7101 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
7102 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
7103 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
7104 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
7105 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
7106 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
7107 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
7108 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
7116 case R_PPC64_TOC16_LO
:
7117 case R_PPC64_TOC16_DS
:
7118 case R_PPC64_TOC16_LO_DS
:
7120 /* Check for toc tls entries. */
7124 retval
= get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
);
7130 tls_mask
= *toc_tls
;
7131 if (r_type
== R_PPC64_TOC16_DS
7132 || r_type
== R_PPC64_TOC16_LO_DS
)
7136 /* If we found a GD reloc pair, then we might be
7137 doing a GD->IE transition. */
7140 tls_gd
= TLS_TPRELGD
;
7141 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7142 goto tls_get_addr_check
;
7144 else if (retval
== 3)
7146 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7147 goto tls_get_addr_check
;
7154 case R_PPC64_GOT_TPREL16_DS
:
7155 case R_PPC64_GOT_TPREL16_LO_DS
:
7158 && (tls_mask
& TLS_TPREL
) == 0)
7161 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
7163 insn
|= 0x3c0d0000; /* addis 0,13,0 */
7164 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
7165 r_type
= R_PPC64_TPREL16_HA
;
7166 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7173 /* Check for toc tls entries. */
7176 if (!get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
))
7180 tls_mask
= *toc_tls
;
7183 && (tls_mask
& TLS_TPREL
) == 0)
7186 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7187 if ((insn
& ((31 << 26) | (31 << 11)))
7188 == ((31 << 26) | (13 << 11)))
7189 rtra
= insn
& ((1 << 26) - (1 << 16));
7190 else if ((insn
& ((31 << 26) | (31 << 16)))
7191 == ((31 << 26) | (13 << 16)))
7192 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
7195 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
7198 else if ((insn
& (31 << 1)) == 23 << 1
7199 && ((insn
& (31 << 6)) < 14 << 6
7200 || ((insn
& (31 << 6)) >= 16 << 6
7201 && (insn
& (31 << 6)) < 24 << 6)))
7202 /* load and store indexed -> dform. */
7203 insn
= (32 | ((insn
>> 6) & 31)) << 26;
7204 else if ((insn
& (31 << 1)) == 21 << 1
7205 && (insn
& (0x1a << 6)) == 0)
7206 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7207 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
7208 | ((insn
>> 6) & 1));
7209 else if ((insn
& (31 << 1)) == 21 << 1
7210 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
7212 insn
= (58 << 26) | 2;
7216 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7217 r_type
= R_PPC64_TPREL16_LO
;
7218 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7219 /* Was PPC64_TLS which sits on insn boundary, now
7220 PPC64_TPREL16_LO which is at insn+2. */
7225 case R_PPC64_GOT_TLSGD16_HI
:
7226 case R_PPC64_GOT_TLSGD16_HA
:
7227 tls_gd
= TLS_TPRELGD
;
7228 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7232 case R_PPC64_GOT_TLSLD16_HI
:
7233 case R_PPC64_GOT_TLSLD16_HA
:
7234 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7237 if ((tls_mask
& tls_gd
) != 0)
7238 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7239 + R_PPC64_GOT_TPREL16_DS
);
7242 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7244 r_type
= R_PPC64_NONE
;
7246 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7250 case R_PPC64_GOT_TLSGD16
:
7251 case R_PPC64_GOT_TLSGD16_LO
:
7252 tls_gd
= TLS_TPRELGD
;
7253 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7254 goto tls_get_addr_check
;
7257 case R_PPC64_GOT_TLSLD16
:
7258 case R_PPC64_GOT_TLSLD16_LO
:
7259 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7262 if (rel
+ 1 < relend
)
7264 enum elf_ppc64_reloc_type r_type2
;
7265 unsigned long r_symndx2
;
7266 struct elf_link_hash_entry
*h2
;
7267 bfd_vma insn1
, insn2
, insn3
;
7270 /* The next instruction should be a call to
7271 __tls_get_addr. Peek at the reloc to be sure. */
7273 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
[1].r_info
);
7274 r_symndx2
= ELF64_R_SYM (rel
[1].r_info
);
7275 if (r_symndx2
< symtab_hdr
->sh_info
7276 || (r_type2
!= R_PPC64_REL14
7277 && r_type2
!= R_PPC64_REL14_BRTAKEN
7278 && r_type2
!= R_PPC64_REL14_BRNTAKEN
7279 && r_type2
!= R_PPC64_REL24
))
7282 h2
= sym_hashes
[r_symndx2
- symtab_hdr
->sh_info
];
7283 while (h2
->root
.type
== bfd_link_hash_indirect
7284 || h2
->root
.type
== bfd_link_hash_warning
)
7285 h2
= (struct elf_link_hash_entry
*) h2
->root
.u
.i
.link
;
7286 if (h2
== NULL
|| h2
!= htab
->tls_get_addr
)
7289 /* OK, it checks out. Replace the call. */
7290 offset
= rel
[1].r_offset
;
7291 insn1
= bfd_get_32 (output_bfd
,
7292 contents
+ rel
->r_offset
- 2);
7293 insn3
= bfd_get_32 (output_bfd
,
7294 contents
+ offset
+ 4);
7295 if ((tls_mask
& tls_gd
) != 0)
7298 insn1
&= (1 << 26) - (1 << 2);
7299 insn1
|= 58 << 26; /* ld */
7300 insn2
= 0x7c636a14; /* add 3,3,13 */
7301 rel
[1].r_info
= ELF64_R_INFO (r_symndx2
, R_PPC64_NONE
);
7302 if ((tls_mask
& TLS_EXPLICIT
) == 0)
7303 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7304 + R_PPC64_GOT_TPREL16_DS
);
7306 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
7307 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7312 insn1
= 0x3c6d0000; /* addis 3,13,0 */
7313 insn2
= 0x38630000; /* addi 3,3,0 */
7316 /* Was an LD reloc. */
7318 rel
->r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7319 rel
[1].r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7321 r_type
= R_PPC64_TPREL16_HA
;
7322 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7323 rel
[1].r_info
= ELF64_R_INFO (r_symndx
,
7324 R_PPC64_TPREL16_LO
);
7325 rel
[1].r_offset
+= 2;
7328 || insn3
== CROR_151515
|| insn3
== CROR_313131
)
7332 rel
[1].r_offset
+= 4;
7334 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
->r_offset
- 2);
7335 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7336 bfd_put_32 (output_bfd
, insn3
, contents
+ offset
+ 4);
7339 /* We changed the symbol on an LD reloc. Start over
7340 in order to get h, sym, sec etc. right. */
7348 case R_PPC64_DTPMOD64
:
7349 if (rel
+ 1 < relend
7350 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
7351 && rel
[1].r_offset
== rel
->r_offset
+ 8)
7353 if ((tls_mask
& TLS_GD
) == 0)
7355 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_NONE
);
7356 if ((tls_mask
& TLS_TPRELGD
) != 0)
7357 r_type
= R_PPC64_TPREL64
;
7360 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7361 contents
+ rel
->r_offset
);
7362 r_type
= R_PPC64_NONE
;
7364 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7369 if ((tls_mask
& TLS_LD
) == 0)
7371 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7372 contents
+ rel
->r_offset
);
7373 r_type
= R_PPC64_NONE
;
7374 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7379 case R_PPC64_TPREL64
:
7380 if ((tls_mask
& TLS_TPREL
) == 0)
7382 r_type
= R_PPC64_NONE
;
7383 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7388 /* Handle other relocations that tweak non-addend part of insn. */
7395 /* Branch taken prediction relocations. */
7396 case R_PPC64_ADDR14_BRTAKEN
:
7397 case R_PPC64_REL14_BRTAKEN
:
7398 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7401 /* Branch not taken prediction relocations. */
7402 case R_PPC64_ADDR14_BRNTAKEN
:
7403 case R_PPC64_REL14_BRNTAKEN
:
7404 insn
|= bfd_get_32 (output_bfd
,
7405 contents
+ rel
->r_offset
) & ~(0x01 << 21);
7408 /* Set 'a' bit. This is 0b00010 in BO field for branch
7409 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7410 for branch on CTR insns (BO == 1a00t or 1a01t). */
7411 if ((insn
& (0x14 << 21)) == (0x04 << 21))
7413 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
7420 from
= (rel
->r_offset
7421 + input_section
->output_offset
7422 + input_section
->output_section
->vma
);
7424 /* Invert 'y' bit if not the default. */
7425 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
7429 bfd_put_32 (output_bfd
, (bfd_vma
) insn
, contents
+ rel
->r_offset
);
7433 /* A REL24 branching to a linkage function is followed by a
7434 nop. We replace the nop with a ld in order to restore
7435 the TOC base pointer. Only calls to shared objects need
7436 to alter the TOC base. These are recognized by their
7437 need for a PLT entry. */
7439 && (fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
) != NULL
7440 && fdh
->plt
.plist
!= NULL
7441 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
,
7442 rel
, htab
)) != NULL
)
7444 bfd_boolean can_plt_call
= 0;
7446 if (rel
->r_offset
+ 8 <= input_section
->_cooked_size
)
7448 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
7450 || insn
== CROR_151515
|| insn
== CROR_313131
)
7452 bfd_put_32 (input_bfd
, (bfd_vma
) LD_R2_40R1
,
7453 contents
+ rel
->r_offset
+ 4);
7460 /* If this is a plain branch rather than a branch
7461 and link, don't require a nop. */
7462 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7463 if ((insn
& 1) == 0)
7469 relocation
= (stub_entry
->stub_offset
7470 + stub_entry
->stub_sec
->output_offset
7471 + stub_entry
->stub_sec
->output_section
->vma
);
7472 unresolved_reloc
= FALSE
;
7477 && h
->root
.type
== bfd_link_hash_undefweak
7479 && rel
->r_addend
== 0)
7481 /* Tweak calls to undefined weak functions to point at a
7482 blr. We can thus call a weak function without first
7483 checking whether the function is defined. We have a
7484 blr at the end of .sfpr. */
7485 BFD_ASSERT (htab
->sfpr
->_raw_size
!= 0);
7486 relocation
= (htab
->sfpr
->_raw_size
- 4
7487 + htab
->sfpr
->output_offset
7488 + htab
->sfpr
->output_section
->vma
);
7489 from
= (rel
->r_offset
7490 + input_section
->output_offset
7491 + input_section
->output_section
->vma
);
7493 /* But let's not be silly about it. If the blr isn't in
7494 reach, just go to the next instruction. */
7495 if (relocation
- from
+ (1 << 25) >= (1 << 26)
7496 || htab
->sfpr
->_raw_size
== 0)
7497 relocation
= from
+ 4;
7504 addend
= rel
->r_addend
;
7508 (*_bfd_error_handler
)
7509 (_("%s: unknown relocation type %d for symbol %s"),
7510 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
7512 bfd_set_error (bfd_error_bad_value
);
7518 case R_PPC64_GNU_VTINHERIT
:
7519 case R_PPC64_GNU_VTENTRY
:
7522 /* GOT16 relocations. Like an ADDR16 using the symbol's
7523 address in the GOT as relocation value instead of the
7524 symbol's value itself. Also, create a GOT entry for the
7525 symbol and put the symbol value there. */
7526 case R_PPC64_GOT_TLSGD16
:
7527 case R_PPC64_GOT_TLSGD16_LO
:
7528 case R_PPC64_GOT_TLSGD16_HI
:
7529 case R_PPC64_GOT_TLSGD16_HA
:
7530 tls_type
= TLS_TLS
| TLS_GD
;
7533 case R_PPC64_GOT_TLSLD16
:
7534 case R_PPC64_GOT_TLSLD16_LO
:
7535 case R_PPC64_GOT_TLSLD16_HI
:
7536 case R_PPC64_GOT_TLSLD16_HA
:
7537 tls_type
= TLS_TLS
| TLS_LD
;
7540 case R_PPC64_GOT_TPREL16_DS
:
7541 case R_PPC64_GOT_TPREL16_LO_DS
:
7542 case R_PPC64_GOT_TPREL16_HI
:
7543 case R_PPC64_GOT_TPREL16_HA
:
7544 tls_type
= TLS_TLS
| TLS_TPREL
;
7547 case R_PPC64_GOT_DTPREL16_DS
:
7548 case R_PPC64_GOT_DTPREL16_LO_DS
:
7549 case R_PPC64_GOT_DTPREL16_HI
:
7550 case R_PPC64_GOT_DTPREL16_HA
:
7551 tls_type
= TLS_TLS
| TLS_DTPREL
;
7555 case R_PPC64_GOT16_LO
:
7556 case R_PPC64_GOT16_HI
:
7557 case R_PPC64_GOT16_HA
:
7558 case R_PPC64_GOT16_DS
:
7559 case R_PPC64_GOT16_LO_DS
:
7562 /* Relocation is to the entry for this symbol in the global
7566 unsigned long indx
= 0;
7568 if (htab
->sgot
== NULL
)
7571 if (tls_type
== (TLS_TLS
| TLS_LD
)
7573 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
7574 offp
= &htab
->tlsld_got
.offset
;
7577 struct got_entry
*ent
;
7581 bfd_boolean dyn
= htab
->elf
.dynamic_sections_created
;
7582 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
7586 || (h
->elf_link_hash_flags
7587 & ELF_LINK_FORCED_LOCAL
))
7588 && (h
->elf_link_hash_flags
7589 & ELF_LINK_HASH_DEF_REGULAR
)))
7590 /* This is actually a static link, or it is a
7591 -Bsymbolic link and the symbol is defined
7592 locally, or the symbol was forced to be local
7593 because of a version file. */
7598 unresolved_reloc
= FALSE
;
7604 if (local_got_ents
== NULL
)
7606 ent
= local_got_ents
[r_symndx
];
7609 for (; ent
!= NULL
; ent
= ent
->next
)
7610 if (ent
->addend
== rel
->r_addend
7611 && ent
->tls_type
== tls_type
)
7615 offp
= &ent
->got
.offset
;
7618 /* The offset must always be a multiple of 8. We use the
7619 least significant bit to record whether we have already
7620 processed this entry. */
7626 /* Generate relocs for the dynamic linker, except in
7627 the case of TLSLD where we'll use one entry per
7630 if (info
->shared
|| indx
!= 0)
7632 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
7633 + htab
->sgot
->output_offset
7635 if (tls_type
& (TLS_LD
| TLS_GD
))
7637 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
7638 outrel
.r_addend
= 0;
7639 if (tls_type
== (TLS_TLS
| TLS_GD
))
7641 loc
= htab
->srelgot
->contents
;
7642 loc
+= (htab
->srelgot
->reloc_count
++
7643 * sizeof (Elf64_External_Rela
));
7644 bfd_elf64_swap_reloca_out (output_bfd
,
7647 = ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7648 outrel
.r_offset
+= 8;
7651 else if (tls_type
== (TLS_TLS
| TLS_DTPREL
))
7652 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7653 else if (tls_type
== (TLS_TLS
| TLS_TPREL
))
7654 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
7656 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_RELATIVE
);
7658 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
7659 outrel
.r_addend
= rel
->r_addend
;
7661 outrel
.r_addend
+= relocation
;
7662 loc
= htab
->srelgot
->contents
;
7663 loc
+= (htab
->srelgot
->reloc_count
++
7664 * sizeof (Elf64_External_Rela
));
7665 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7668 /* Init the .got section contents if we're not
7669 emitting a reloc. */
7672 relocation
+= rel
->r_addend
;
7675 relocation
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7676 if ((tls_type
& TLS_TPREL
) != 0)
7677 relocation
+= DTP_OFFSET
- TP_OFFSET
;
7680 if ((tls_type
& TLS_GD
) != 0)
7682 bfd_put_64 (output_bfd
, relocation
,
7683 htab
->sgot
->contents
+ off
+ 8);
7686 else if (tls_type
== (TLS_TLS
| TLS_LD
))
7688 bfd_put_64 (output_bfd
, relocation
,
7689 htab
->sgot
->contents
+ off
);
7693 if (off
>= (bfd_vma
) -2)
7696 relocation
= htab
->sgot
->output_offset
+ off
;
7698 /* TOC base (r2) is TOC start plus 0x8000. */
7699 addend
= - TOC_BASE_OFF
;
7703 case R_PPC64_PLT16_HA
:
7704 case R_PPC64_PLT16_HI
:
7705 case R_PPC64_PLT16_LO
:
7708 /* Relocation is to the entry for this symbol in the
7709 procedure linkage table. */
7711 /* Resolve a PLT reloc against a local symbol directly,
7712 without using the procedure linkage table. */
7716 /* It's possible that we didn't make a PLT entry for this
7717 symbol. This happens when statically linking PIC code,
7718 or when using -Bsymbolic. Go find a match if there is a
7720 if (htab
->splt
!= NULL
)
7722 struct plt_entry
*ent
;
7723 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7724 if (ent
->addend
== rel
->r_addend
7725 && ent
->plt
.offset
!= (bfd_vma
) -1)
7727 relocation
= (htab
->splt
->output_section
->vma
7728 + htab
->splt
->output_offset
7730 unresolved_reloc
= FALSE
;
7735 /* TOC16 relocs. We want the offset relative to the TOC base,
7736 which is the address of the start of the TOC plus 0x8000.
7737 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7740 case R_PPC64_TOC16_LO
:
7741 case R_PPC64_TOC16_HI
:
7742 case R_PPC64_TOC16_DS
:
7743 case R_PPC64_TOC16_LO_DS
:
7744 case R_PPC64_TOC16_HA
:
7745 addend
-= TOCstart
+ TOC_BASE_OFF
;
7748 /* Relocate against the beginning of the section. */
7749 case R_PPC64_SECTOFF
:
7750 case R_PPC64_SECTOFF_LO
:
7751 case R_PPC64_SECTOFF_HI
:
7752 case R_PPC64_SECTOFF_DS
:
7753 case R_PPC64_SECTOFF_LO_DS
:
7754 case R_PPC64_SECTOFF_HA
:
7755 if (sec
!= (asection
*) 0)
7756 addend
-= sec
->output_section
->vma
;
7760 case R_PPC64_REL14_BRNTAKEN
:
7761 case R_PPC64_REL14_BRTAKEN
:
7765 case R_PPC64_TPREL16
:
7766 case R_PPC64_TPREL16_LO
:
7767 case R_PPC64_TPREL16_HI
:
7768 case R_PPC64_TPREL16_HA
:
7769 case R_PPC64_TPREL16_DS
:
7770 case R_PPC64_TPREL16_LO_DS
:
7771 case R_PPC64_TPREL16_HIGHER
:
7772 case R_PPC64_TPREL16_HIGHERA
:
7773 case R_PPC64_TPREL16_HIGHEST
:
7774 case R_PPC64_TPREL16_HIGHESTA
:
7775 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7777 /* The TPREL16 relocs shouldn't really be used in shared
7778 libs as they will result in DT_TEXTREL being set, but
7779 support them anyway. */
7783 case R_PPC64_DTPREL16
:
7784 case R_PPC64_DTPREL16_LO
:
7785 case R_PPC64_DTPREL16_HI
:
7786 case R_PPC64_DTPREL16_HA
:
7787 case R_PPC64_DTPREL16_DS
:
7788 case R_PPC64_DTPREL16_LO_DS
:
7789 case R_PPC64_DTPREL16_HIGHER
:
7790 case R_PPC64_DTPREL16_HIGHERA
:
7791 case R_PPC64_DTPREL16_HIGHEST
:
7792 case R_PPC64_DTPREL16_HIGHESTA
:
7793 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7796 case R_PPC64_TPREL64
:
7797 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7800 case R_PPC64_DTPREL64
:
7801 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7804 /* Relocations that may need to be propagated if this is a
7806 case R_PPC64_DTPMOD64
:
7810 case R_PPC64_ADDR14
:
7811 case R_PPC64_ADDR14_BRNTAKEN
:
7812 case R_PPC64_ADDR14_BRTAKEN
:
7813 case R_PPC64_ADDR16
:
7814 case R_PPC64_ADDR16_DS
:
7815 case R_PPC64_ADDR16_HA
:
7816 case R_PPC64_ADDR16_HI
:
7817 case R_PPC64_ADDR16_HIGHER
:
7818 case R_PPC64_ADDR16_HIGHERA
:
7819 case R_PPC64_ADDR16_HIGHEST
:
7820 case R_PPC64_ADDR16_HIGHESTA
:
7821 case R_PPC64_ADDR16_LO
:
7822 case R_PPC64_ADDR16_LO_DS
:
7823 case R_PPC64_ADDR24
:
7824 case R_PPC64_ADDR32
:
7825 case R_PPC64_ADDR64
:
7826 case R_PPC64_UADDR16
:
7827 case R_PPC64_UADDR32
:
7828 case R_PPC64_UADDR64
:
7829 /* r_symndx will be zero only for relocs against symbols
7830 from removed linkonce sections, or sections discarded by
7838 if ((input_section
->flags
& SEC_ALLOC
) == 0)
7841 if (NO_OPD_RELOCS
&& is_opd
)
7845 && (MUST_BE_DYN_RELOC (r_type
)
7848 && (! info
->symbolic
7849 || (h
->elf_link_hash_flags
7850 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
7851 || (ELIMINATE_COPY_RELOCS
7855 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
7856 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
7857 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0))
7859 Elf_Internal_Rela outrel
;
7860 bfd_boolean skip
, relocate
;
7864 /* When generating a dynamic object, these relocations
7865 are copied into the output file to be resolved at run
7872 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
7874 if (outrel
.r_offset
== (bfd_vma
) -1)
7876 else if (outrel
.r_offset
== (bfd_vma
) -2)
7877 skip
= TRUE
, relocate
= TRUE
;
7878 outrel
.r_offset
+= (input_section
->output_section
->vma
7879 + input_section
->output_offset
);
7880 outrel
.r_addend
= rel
->r_addend
;
7883 memset (&outrel
, 0, sizeof outrel
);
7887 && (!MUST_BE_DYN_RELOC (r_type
)
7890 || (h
->elf_link_hash_flags
7891 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
7892 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
7895 /* This symbol is local, or marked to become local,
7896 or this is an opd section reloc which must point
7897 at a local function. */
7898 outrel
.r_addend
+= relocation
;
7901 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
7903 if (is_opd
&& h
!= NULL
)
7905 /* Lie about opd entries. This case occurs
7906 when building shared libraries and we
7907 reference a function in another shared
7908 lib. The same thing happens for a weak
7909 definition in an application that's
7910 overridden by a strong definition in a
7911 shared lib. (I believe this is a generic
7912 bug in binutils handling of weak syms.)
7913 In these cases we won't use the opd
7914 entry in this lib. */
7915 unresolved_reloc
= FALSE
;
7917 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
7923 if (bfd_is_abs_section (sec
))
7925 else if (sec
== NULL
|| sec
->owner
== NULL
)
7927 bfd_set_error (bfd_error_bad_value
);
7934 osec
= sec
->output_section
;
7935 indx
= elf_section_data (osec
)->dynindx
;
7937 /* We are turning this relocation into one
7938 against a section symbol, so subtract out
7939 the output section's address but not the
7940 offset of the input section in the output
7942 outrel
.r_addend
-= osec
->vma
;
7945 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
7949 sreloc
= elf_section_data (input_section
)->sreloc
;
7953 loc
= sreloc
->contents
;
7954 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
7955 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7957 /* If this reloc is against an external symbol, it will
7958 be computed at runtime, so there's no need to do
7966 case R_PPC64_GLOB_DAT
:
7967 case R_PPC64_JMP_SLOT
:
7968 case R_PPC64_RELATIVE
:
7969 /* We shouldn't ever see these dynamic relocs in relocatable
7973 case R_PPC64_PLTGOT16
:
7974 case R_PPC64_PLTGOT16_DS
:
7975 case R_PPC64_PLTGOT16_HA
:
7976 case R_PPC64_PLTGOT16_HI
:
7977 case R_PPC64_PLTGOT16_LO
:
7978 case R_PPC64_PLTGOT16_LO_DS
:
7979 case R_PPC64_PLTREL32
:
7980 case R_PPC64_PLTREL64
:
7981 /* These ones haven't been implemented yet. */
7983 (*_bfd_error_handler
)
7984 (_("%s: Relocation %s is not supported for symbol %s."),
7985 bfd_archive_filename (input_bfd
),
7986 ppc64_elf_howto_table
[(int) r_type
]->name
, sym_name
);
7988 bfd_set_error (bfd_error_invalid_operation
);
7993 /* Do any further special processing. */
7999 case R_PPC64_ADDR16_HA
:
8000 case R_PPC64_ADDR16_HIGHERA
:
8001 case R_PPC64_ADDR16_HIGHESTA
:
8002 case R_PPC64_GOT16_HA
:
8003 case R_PPC64_PLTGOT16_HA
:
8004 case R_PPC64_PLT16_HA
:
8005 case R_PPC64_TOC16_HA
:
8006 case R_PPC64_SECTOFF_HA
:
8007 case R_PPC64_TPREL16_HA
:
8008 case R_PPC64_DTPREL16_HA
:
8009 case R_PPC64_GOT_TLSGD16_HA
:
8010 case R_PPC64_GOT_TLSLD16_HA
:
8011 case R_PPC64_GOT_TPREL16_HA
:
8012 case R_PPC64_GOT_DTPREL16_HA
:
8013 case R_PPC64_TPREL16_HIGHER
:
8014 case R_PPC64_TPREL16_HIGHERA
:
8015 case R_PPC64_TPREL16_HIGHEST
:
8016 case R_PPC64_TPREL16_HIGHESTA
:
8017 case R_PPC64_DTPREL16_HIGHER
:
8018 case R_PPC64_DTPREL16_HIGHERA
:
8019 case R_PPC64_DTPREL16_HIGHEST
:
8020 case R_PPC64_DTPREL16_HIGHESTA
:
8021 /* It's just possible that this symbol is a weak symbol
8022 that's not actually defined anywhere. In that case,
8023 'sec' would be NULL, and we should leave the symbol
8024 alone (it will be set to zero elsewhere in the link). */
8026 /* Add 0x10000 if sign bit in 0:15 is set. */
8027 addend
+= ((relocation
+ addend
) & 0x8000) << 1;
8030 case R_PPC64_ADDR16_DS
:
8031 case R_PPC64_ADDR16_LO_DS
:
8032 case R_PPC64_GOT16_DS
:
8033 case R_PPC64_GOT16_LO_DS
:
8034 case R_PPC64_PLT16_LO_DS
:
8035 case R_PPC64_SECTOFF_DS
:
8036 case R_PPC64_SECTOFF_LO_DS
:
8037 case R_PPC64_TOC16_DS
:
8038 case R_PPC64_TOC16_LO_DS
:
8039 case R_PPC64_PLTGOT16_DS
:
8040 case R_PPC64_PLTGOT16_LO_DS
:
8041 case R_PPC64_GOT_TPREL16_DS
:
8042 case R_PPC64_GOT_TPREL16_LO_DS
:
8043 case R_PPC64_GOT_DTPREL16_DS
:
8044 case R_PPC64_GOT_DTPREL16_LO_DS
:
8045 case R_PPC64_TPREL16_DS
:
8046 case R_PPC64_TPREL16_LO_DS
:
8047 case R_PPC64_DTPREL16_DS
:
8048 case R_PPC64_DTPREL16_LO_DS
:
8049 if (((relocation
+ addend
) & 3) != 0)
8051 (*_bfd_error_handler
)
8052 (_("%s: error: relocation %s not a multiple of 4"),
8053 bfd_archive_filename (input_bfd
),
8054 ppc64_elf_howto_table
[(int) r_type
]->name
);
8055 bfd_set_error (bfd_error_bad_value
);
8062 case R_PPC64_REL14_BRNTAKEN
:
8063 case R_PPC64_REL14_BRTAKEN
:
8064 max_br_offset
= 1 << 15;
8068 max_br_offset
= 1 << 25;
8071 /* If the branch is out of reach, then redirect the
8072 call to the local stub for this function. */
8073 from
= (rel
->r_offset
8074 + input_section
->output_offset
8075 + input_section
->output_section
->vma
);
8076 if (relocation
+ addend
- from
+ max_br_offset
>= 2 * max_br_offset
8077 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, h
,
8078 rel
, htab
)) != NULL
)
8080 /* Munge up the value and addend so that we call the stub
8081 rather than the procedure directly. */
8082 relocation
= (stub_entry
->stub_offset
8083 + stub_entry
->stub_sec
->output_offset
8084 + stub_entry
->stub_sec
->output_section
->vma
);
8090 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8091 because such sections are not SEC_ALLOC and thus ld.so will
8092 not process them. */
8093 if (unresolved_reloc
8094 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
8095 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
8097 (*_bfd_error_handler
)
8098 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8099 bfd_archive_filename (input_bfd
),
8100 bfd_get_section_name (input_bfd
, input_section
),
8101 (long) rel
->r_offset
,
8102 h
->root
.root
.string
);
8106 r
= _bfd_final_link_relocate (ppc64_elf_howto_table
[(int) r_type
],
8114 if (r
!= bfd_reloc_ok
)
8116 if (sym_name
== NULL
)
8117 sym_name
= "(null)";
8118 if (r
== bfd_reloc_overflow
)
8123 && h
->root
.type
== bfd_link_hash_undefweak
8124 && ppc64_elf_howto_table
[(int) r_type
]->pc_relative
)
8126 /* Assume this is a call protected by other code that
8127 detects the symbol is undefined. If this is the case,
8128 we can safely ignore the overflow. If not, the
8129 program is hosed anyway, and a little warning isn't
8135 if (!((*info
->callbacks
->reloc_overflow
)
8136 (info
, sym_name
, ppc64_elf_howto_table
[(int) r_type
]->name
,
8137 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
)))
8142 (*_bfd_error_handler
)
8143 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8144 bfd_archive_filename (input_bfd
),
8145 bfd_get_section_name (input_bfd
, input_section
),
8146 (long) rel
->r_offset
, sym_name
, (int) r
);
8155 /* Finish up dynamic symbol handling. We set the contents of various
8156 dynamic sections here. */
8159 ppc64_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8161 struct bfd_link_info
*info
;
8162 struct elf_link_hash_entry
*h
;
8163 Elf_Internal_Sym
*sym
;
8165 struct ppc_link_hash_table
*htab
;
8168 htab
= ppc_hash_table (info
);
8169 dynobj
= htab
->elf
.dynobj
;
8171 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
8173 struct plt_entry
*ent
;
8174 Elf_Internal_Rela rela
;
8177 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8178 if (ent
->plt
.offset
!= (bfd_vma
) -1)
8180 /* This symbol has an entry in the procedure linkage
8181 table. Set it up. */
8183 if (htab
->splt
== NULL
8184 || htab
->srelplt
== NULL
8185 || htab
->sglink
== NULL
)
8188 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8189 fill in the PLT entry. */
8190 rela
.r_offset
= (htab
->splt
->output_section
->vma
8191 + htab
->splt
->output_offset
8193 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
8194 rela
.r_addend
= ent
->addend
;
8196 loc
= htab
->srelplt
->contents
;
8197 loc
+= ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
8198 * sizeof (Elf64_External_Rela
));
8199 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8203 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
8205 Elf_Internal_Rela rela
;
8208 /* This symbol needs a copy reloc. Set it up. */
8210 if (h
->dynindx
== -1
8211 || (h
->root
.type
!= bfd_link_hash_defined
8212 && h
->root
.type
!= bfd_link_hash_defweak
)
8213 || htab
->srelbss
== NULL
)
8216 rela
.r_offset
= (h
->root
.u
.def
.value
8217 + h
->root
.u
.def
.section
->output_section
->vma
8218 + h
->root
.u
.def
.section
->output_offset
);
8219 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
8221 loc
= htab
->srelbss
->contents
;
8222 loc
+= htab
->srelbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8223 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8226 /* Mark some specially defined symbols as absolute. */
8227 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0)
8228 sym
->st_shndx
= SHN_ABS
;
8233 /* Used to decide how to sort relocs in an optimal manner for the
8234 dynamic linker, before writing them out. */
8236 static enum elf_reloc_type_class
8237 ppc64_elf_reloc_type_class (rela
)
8238 const Elf_Internal_Rela
*rela
;
8240 enum elf_ppc64_reloc_type r_type
;
8242 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rela
->r_info
);
8245 case R_PPC64_RELATIVE
:
8246 return reloc_class_relative
;
8247 case R_PPC64_JMP_SLOT
:
8248 return reloc_class_plt
;
8250 return reloc_class_copy
;
8252 return reloc_class_normal
;
8256 /* Finish up the dynamic sections. */
8259 ppc64_elf_finish_dynamic_sections (output_bfd
, info
)
8261 struct bfd_link_info
*info
;
8263 struct ppc_link_hash_table
*htab
;
8267 htab
= ppc_hash_table (info
);
8268 dynobj
= htab
->elf
.dynobj
;
8269 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8271 if (htab
->elf
.dynamic_sections_created
)
8273 Elf64_External_Dyn
*dyncon
, *dynconend
;
8275 if (sdyn
== NULL
|| htab
->sgot
== NULL
)
8278 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
8279 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
8280 for (; dyncon
< dynconend
; dyncon
++)
8282 Elf_Internal_Dyn dyn
;
8285 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
8292 case DT_PPC64_GLINK
:
8294 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8298 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8301 dyn
.d_un
.d_ptr
= s
->vma
;
8304 case DT_PPC64_OPDSZ
:
8305 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8308 dyn
.d_un
.d_val
= s
->_raw_size
;
8313 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8318 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8322 dyn
.d_un
.d_val
= htab
->srelplt
->_raw_size
;
8326 /* Don't count procedure linkage table relocs in the
8327 overall reloc count. */
8331 dyn
.d_un
.d_val
-= s
->_raw_size
;
8335 /* We may not be using the standard ELF linker script.
8336 If .rela.plt is the first .rela section, we adjust
8337 DT_RELA to not include it. */
8341 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
8343 dyn
.d_un
.d_ptr
+= s
->_raw_size
;
8347 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
8351 if (htab
->sgot
!= NULL
&& htab
->sgot
->_raw_size
!= 0)
8353 /* Fill in the first entry in the global offset table.
8354 We use it to hold the link-time TOCbase. */
8355 bfd_put_64 (output_bfd
,
8356 elf_gp (output_bfd
) + TOC_BASE_OFF
,
8357 htab
->sgot
->contents
);
8359 /* Set .got entry size. */
8360 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
8363 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
8365 /* Set .plt entry size. */
8366 elf_section_data (htab
->splt
->output_section
)->this_hdr
.sh_entsize
8373 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8374 #define TARGET_LITTLE_NAME "elf64-powerpcle"
8375 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8376 #define TARGET_BIG_NAME "elf64-powerpc"
8377 #define ELF_ARCH bfd_arch_powerpc
8378 #define ELF_MACHINE_CODE EM_PPC64
8379 #define ELF_MAXPAGESIZE 0x10000
8380 #define elf_info_to_howto ppc64_elf_info_to_howto
8382 #ifdef EM_CYGNUS_POWERPC
8383 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8387 #define ELF_MACHINE_ALT2 EM_PPC_OLD
8390 #define elf_backend_want_got_sym 0
8391 #define elf_backend_want_plt_sym 0
8392 #define elf_backend_plt_alignment 3
8393 #define elf_backend_plt_not_loaded 1
8394 #define elf_backend_got_symbol_offset 0
8395 #define elf_backend_got_header_size 8
8396 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
8397 #define elf_backend_can_gc_sections 1
8398 #define elf_backend_can_refcount 1
8399 #define elf_backend_rela_normal 1
8401 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
8402 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
8403 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
8404 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
8405 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
8407 #define elf_backend_object_p ppc64_elf_object_p
8408 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8409 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8410 #define elf_backend_check_relocs ppc64_elf_check_relocs
8411 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8412 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8413 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
8414 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
8415 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
8416 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
8417 #define elf_backend_relocate_section ppc64_elf_relocate_section
8418 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8419 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8420 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
8422 #include "elf64-target.h"