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. */
2538 #define MUST_BE_DYN_RELOC(RTYPE) \
2539 ((RTYPE) != R_PPC64_REL32 \
2540 && (RTYPE) != R_PPC64_REL64 \
2541 && (RTYPE) != R_PPC64_REL30)
2543 /* Section name for stubs is the associated section name plus this
2545 #define STUB_SUFFIX ".stub"
2548 ppc_stub_long_branch:
2549 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2550 destination, but a 24 bit branch in a stub section will reach.
2553 ppc_stub_plt_branch:
2554 Similar to the above, but a 24 bit branch in the stub section won't
2555 reach its destination.
2556 . addis %r12,%r2,xxx@toc@ha
2557 . ld %r11,xxx@toc@l(%r12)
2562 Used to call a function in a shared library.
2563 . addis %r12,%r2,xxx@toc@ha
2565 . ld %r11,xxx+0@toc@l(%r12)
2566 . ld %r2,xxx+8@toc@l(%r12)
2568 . ld %r11,xxx+16@toc@l(%r12)
2572 enum ppc_stub_type
{
2574 ppc_stub_long_branch
,
2575 ppc_stub_plt_branch
,
2579 struct ppc_stub_hash_entry
{
2581 /* Base hash table entry structure. */
2582 struct bfd_hash_entry root
;
2584 /* The stub section. */
2587 /* Offset within stub_sec of the beginning of this stub. */
2588 bfd_vma stub_offset
;
2590 /* Given the symbol's value and its section we can determine its final
2591 value when building the stubs (so the stub knows where to jump. */
2592 bfd_vma target_value
;
2593 asection
*target_section
;
2595 enum ppc_stub_type stub_type
;
2597 /* The symbol table entry, if any, that this was derived from. */
2598 struct ppc_link_hash_entry
*h
;
2600 /* And the reloc addend that this was derived from. */
2603 /* Where this stub is being called from, or, in the case of combined
2604 stub sections, the first input section in the group. */
2608 struct ppc_branch_hash_entry
{
2610 /* Base hash table entry structure. */
2611 struct bfd_hash_entry root
;
2613 /* Offset within .branch_lt. */
2614 unsigned int offset
;
2616 /* Generation marker. */
2620 struct ppc_link_hash_entry
2622 struct elf_link_hash_entry elf
;
2624 /* A pointer to the most recently used stub hash entry against this
2626 struct ppc_stub_hash_entry
*stub_cache
;
2628 /* Track dynamic relocs copied for this symbol. */
2629 struct ppc_dyn_relocs
*dyn_relocs
;
2631 /* Link between function code and descriptor symbols. */
2632 struct elf_link_hash_entry
*oh
;
2634 /* Flag function code and descriptor symbols. */
2635 unsigned int is_func
:1;
2636 unsigned int is_func_descriptor
:1;
2637 unsigned int is_entry
:1;
2639 /* Contexts in which symbol is used in the GOT (or TOC).
2640 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2641 corresponding relocs are encountered during check_relocs.
2642 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2643 indicate the corresponding GOT entry type is not needed.
2644 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2645 a TPREL one. We use a separate flag rather than setting TPREL
2646 just for convenience in distinguishing the two cases. */
2647 #define TLS_GD 1 /* GD reloc. */
2648 #define TLS_LD 2 /* LD reloc. */
2649 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2650 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2651 #define TLS_TLS 16 /* Any TLS reloc. */
2652 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2653 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2657 /* ppc64 ELF linker hash table. */
2659 struct ppc_link_hash_table
2661 struct elf_link_hash_table elf
;
2663 /* The stub hash table. */
2664 struct bfd_hash_table stub_hash_table
;
2666 /* Another hash table for plt_branch stubs. */
2667 struct bfd_hash_table branch_hash_table
;
2669 /* Linker stub bfd. */
2672 /* Linker call-backs. */
2673 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
2674 void (*layout_sections_again
) PARAMS ((void));
2676 /* Array to keep track of which stub sections have been created, and
2677 information on stub grouping. */
2679 /* This is the section to which stubs in the group will be attached. */
2681 /* The stub section. */
2685 /* Assorted information used by ppc64_elf_size_stubs. */
2687 asection
**input_list
;
2689 /* Short-cuts to get to dynamic linker sections. */
2701 /* Short-cut to first output tls section. */
2704 /* Shortcut to .__tls_get_addr. */
2705 struct elf_link_hash_entry
*tls_get_addr
;
2707 /* TLS local dynamic got entry handling. */
2709 bfd_signed_vma refcount
;
2714 unsigned int stub_error
;
2716 /* Flag set when small branches are detected. Used to
2717 select suitable defaults for the stub group size. */
2718 unsigned int has_14bit_branch
;
2720 /* Set if we detect a reference undefined weak symbol. */
2721 unsigned int have_undefweak
;
2723 /* Incremented every time we size stubs. */
2724 unsigned int stub_iteration
;
2726 /* Small local sym to section mapping cache. */
2727 struct sym_sec_cache sym_sec
;
2730 static struct bfd_hash_entry
*stub_hash_newfunc
2731 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2732 static struct bfd_hash_entry
*branch_hash_newfunc
2733 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2734 static struct bfd_hash_entry
*link_hash_newfunc
2735 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
2736 static struct bfd_link_hash_table
*ppc64_elf_link_hash_table_create
2738 static void ppc64_elf_link_hash_table_free
2739 PARAMS ((struct bfd_link_hash_table
*));
2740 static char *ppc_stub_name
2741 PARAMS ((const asection
*, const asection
*,
2742 const struct ppc_link_hash_entry
*, const Elf_Internal_Rela
*));
2743 static struct ppc_stub_hash_entry
*ppc_get_stub_entry
2744 PARAMS ((const asection
*, const asection
*, struct elf_link_hash_entry
*,
2745 const Elf_Internal_Rela
*, struct ppc_link_hash_table
*));
2746 static struct ppc_stub_hash_entry
*ppc_add_stub
2747 PARAMS ((const char *, asection
*, struct ppc_link_hash_table
*));
2748 static bfd_boolean create_linkage_sections
2749 PARAMS ((bfd
*, struct bfd_link_info
*));
2750 static bfd_boolean create_got_section
2751 PARAMS ((bfd
*, struct bfd_link_info
*));
2752 static bfd_boolean ppc64_elf_create_dynamic_sections
2753 PARAMS ((bfd
*, struct bfd_link_info
*));
2754 static void ppc64_elf_copy_indirect_symbol
2755 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
2756 struct elf_link_hash_entry
*));
2757 static bfd_boolean update_local_sym_info
2758 PARAMS ((bfd
*, Elf_Internal_Shdr
*, unsigned long, bfd_vma
, int));
2759 static bfd_boolean update_plt_info
2760 PARAMS ((bfd
*, struct ppc_link_hash_entry
*, bfd_vma
));
2761 static bfd_boolean ppc64_elf_check_relocs
2762 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2763 const Elf_Internal_Rela
*));
2764 static asection
* ppc64_elf_gc_mark_hook
2765 PARAMS ((asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
2766 struct elf_link_hash_entry
*, Elf_Internal_Sym
*));
2767 static bfd_boolean ppc64_elf_gc_sweep_hook
2768 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
2769 const Elf_Internal_Rela
*));
2770 static bfd_boolean func_desc_adjust
2771 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2772 static bfd_boolean ppc64_elf_func_desc_adjust
2773 PARAMS ((bfd
*, struct bfd_link_info
*));
2774 static bfd_boolean ppc64_elf_adjust_dynamic_symbol
2775 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*));
2776 static void ppc64_elf_hide_symbol
2777 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
2778 static bfd_boolean get_sym_h
2779 PARAMS ((struct elf_link_hash_entry
**, Elf_Internal_Sym
**, asection
**,
2780 char **, Elf_Internal_Sym
**, unsigned long, bfd
*));
2781 static int get_tls_mask
2782 PARAMS ((char **, Elf_Internal_Sym
**, const Elf_Internal_Rela
*, bfd
*));
2783 static bfd_boolean allocate_dynrelocs
2784 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2785 static bfd_boolean readonly_dynrelocs
2786 PARAMS ((struct elf_link_hash_entry
*, PTR
));
2787 static enum elf_reloc_type_class ppc64_elf_reloc_type_class
2788 PARAMS ((const Elf_Internal_Rela
*));
2789 static bfd_boolean ppc64_elf_size_dynamic_sections
2790 PARAMS ((bfd
*, struct bfd_link_info
*));
2791 static enum ppc_stub_type ppc_type_of_stub
2792 PARAMS ((asection
*, const Elf_Internal_Rela
*,
2793 struct ppc_link_hash_entry
**, bfd_vma
));
2794 static bfd_byte
*build_plt_stub
2795 PARAMS ((bfd
*, bfd_byte
*, int, int));
2796 static bfd_boolean ppc_build_one_stub
2797 PARAMS ((struct bfd_hash_entry
*, PTR
));
2798 static bfd_boolean ppc_size_one_stub
2799 PARAMS ((struct bfd_hash_entry
*, PTR
));
2800 static void group_sections
2801 PARAMS ((struct ppc_link_hash_table
*, bfd_size_type
, bfd_boolean
));
2802 static bfd_boolean ppc64_elf_relocate_section
2803 PARAMS ((bfd
*, struct bfd_link_info
*info
, bfd
*, asection
*, bfd_byte
*,
2804 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
2806 static bfd_boolean ppc64_elf_finish_dynamic_symbol
2807 PARAMS ((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
2808 Elf_Internal_Sym
*));
2809 static bfd_boolean ppc64_elf_finish_dynamic_sections
2810 PARAMS ((bfd
*, struct bfd_link_info
*));
2812 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2814 #define ppc_hash_table(p) \
2815 ((struct ppc_link_hash_table *) ((p)->hash))
2817 #define ppc_stub_hash_lookup(table, string, create, copy) \
2818 ((struct ppc_stub_hash_entry *) \
2819 bfd_hash_lookup ((table), (string), (create), (copy)))
2821 #define ppc_branch_hash_lookup(table, string, create, copy) \
2822 ((struct ppc_branch_hash_entry *) \
2823 bfd_hash_lookup ((table), (string), (create), (copy)))
2825 /* Create an entry in the stub hash table. */
2827 static struct bfd_hash_entry
*
2828 stub_hash_newfunc (entry
, table
, string
)
2829 struct bfd_hash_entry
*entry
;
2830 struct bfd_hash_table
*table
;
2833 /* Allocate the structure if it has not already been allocated by a
2837 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_stub_hash_entry
));
2842 /* Call the allocation method of the superclass. */
2843 entry
= bfd_hash_newfunc (entry
, table
, string
);
2846 struct ppc_stub_hash_entry
*eh
;
2848 /* Initialize the local fields. */
2849 eh
= (struct ppc_stub_hash_entry
*) entry
;
2850 eh
->stub_sec
= NULL
;
2851 eh
->stub_offset
= 0;
2852 eh
->target_value
= 0;
2853 eh
->target_section
= NULL
;
2854 eh
->stub_type
= ppc_stub_none
;
2862 /* Create an entry in the branch hash table. */
2864 static struct bfd_hash_entry
*
2865 branch_hash_newfunc (entry
, table
, string
)
2866 struct bfd_hash_entry
*entry
;
2867 struct bfd_hash_table
*table
;
2870 /* Allocate the structure if it has not already been allocated by a
2874 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_branch_hash_entry
));
2879 /* Call the allocation method of the superclass. */
2880 entry
= bfd_hash_newfunc (entry
, table
, string
);
2883 struct ppc_branch_hash_entry
*eh
;
2885 /* Initialize the local fields. */
2886 eh
= (struct ppc_branch_hash_entry
*) entry
;
2894 /* Create an entry in a ppc64 ELF linker hash table. */
2896 static struct bfd_hash_entry
*
2897 link_hash_newfunc (entry
, table
, string
)
2898 struct bfd_hash_entry
*entry
;
2899 struct bfd_hash_table
*table
;
2902 /* Allocate the structure if it has not already been allocated by a
2906 entry
= bfd_hash_allocate (table
, sizeof (struct ppc_link_hash_entry
));
2911 /* Call the allocation method of the superclass. */
2912 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
2915 struct ppc_link_hash_entry
*eh
= (struct ppc_link_hash_entry
*) entry
;
2917 eh
->stub_cache
= NULL
;
2918 eh
->dyn_relocs
= NULL
;
2921 eh
->is_func_descriptor
= 0;
2929 /* Create a ppc64 ELF linker hash table. */
2931 static struct bfd_link_hash_table
*
2932 ppc64_elf_link_hash_table_create (abfd
)
2935 struct ppc_link_hash_table
*htab
;
2936 bfd_size_type amt
= sizeof (struct ppc_link_hash_table
);
2938 htab
= (struct ppc_link_hash_table
*) bfd_malloc (amt
);
2942 if (! _bfd_elf_link_hash_table_init (&htab
->elf
, abfd
, link_hash_newfunc
))
2948 /* Init the stub hash table too. */
2949 if (!bfd_hash_table_init (&htab
->stub_hash_table
, stub_hash_newfunc
))
2952 /* And the branch hash table. */
2953 if (!bfd_hash_table_init (&htab
->branch_hash_table
, branch_hash_newfunc
))
2956 htab
->stub_bfd
= NULL
;
2957 htab
->add_stub_section
= NULL
;
2958 htab
->layout_sections_again
= NULL
;
2959 htab
->stub_group
= NULL
;
2961 htab
->srelgot
= NULL
;
2963 htab
->srelplt
= NULL
;
2964 htab
->sdynbss
= NULL
;
2965 htab
->srelbss
= NULL
;
2966 htab
->sglink
= NULL
;
2969 htab
->srelbrlt
= NULL
;
2970 htab
->tls_sec
= NULL
;
2971 htab
->tlsld_got
.refcount
= 0;
2972 htab
->stub_error
= 0;
2973 htab
->has_14bit_branch
= 0;
2974 htab
->have_undefweak
= 0;
2975 htab
->stub_iteration
= 0;
2976 htab
->sym_sec
.abfd
= NULL
;
2977 /* Initializing two fields of the union is just cosmetic. We really
2978 only care about glist, but when compiled on a 32-bit host the
2979 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2980 debugger inspection of these fields look nicer. */
2981 htab
->elf
.init_refcount
.refcount
= 0;
2982 htab
->elf
.init_refcount
.glist
= NULL
;
2983 htab
->elf
.init_offset
.offset
= 0;
2984 htab
->elf
.init_offset
.glist
= NULL
;
2986 return &htab
->elf
.root
;
2989 /* Free the derived linker hash table. */
2992 ppc64_elf_link_hash_table_free (hash
)
2993 struct bfd_link_hash_table
*hash
;
2995 struct ppc_link_hash_table
*ret
= (struct ppc_link_hash_table
*) hash
;
2997 bfd_hash_table_free (&ret
->stub_hash_table
);
2998 bfd_hash_table_free (&ret
->branch_hash_table
);
2999 _bfd_generic_link_hash_table_free (hash
);
3002 /* Build a name for an entry in the stub hash table. */
3005 ppc_stub_name (input_section
, sym_sec
, h
, rel
)
3006 const asection
*input_section
;
3007 const asection
*sym_sec
;
3008 const struct ppc_link_hash_entry
*h
;
3009 const Elf_Internal_Rela
*rel
;
3014 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3015 offsets from a sym as a branch target? In fact, we could
3016 probably assume the addend is always zero. */
3017 BFD_ASSERT (((int) rel
->r_addend
& 0xffffffff) == rel
->r_addend
);
3021 len
= 8 + 1 + strlen (h
->elf
.root
.root
.string
) + 1 + 8 + 1;
3022 stub_name
= bfd_malloc (len
);
3023 if (stub_name
!= NULL
)
3025 sprintf (stub_name
, "%08x_%s+%x",
3026 input_section
->id
& 0xffffffff,
3027 h
->elf
.root
.root
.string
,
3028 (int) rel
->r_addend
& 0xffffffff);
3033 len
= 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
3034 stub_name
= bfd_malloc (len
);
3035 if (stub_name
!= NULL
)
3037 sprintf (stub_name
, "%08x_%x:%x+%x",
3038 input_section
->id
& 0xffffffff,
3039 sym_sec
->id
& 0xffffffff,
3040 (int) ELF64_R_SYM (rel
->r_info
) & 0xffffffff,
3041 (int) rel
->r_addend
& 0xffffffff);
3047 /* Look up an entry in the stub hash. Stub entries are cached because
3048 creating the stub name takes a bit of time. */
3050 static struct ppc_stub_hash_entry
*
3051 ppc_get_stub_entry (input_section
, sym_sec
, hash
, rel
, htab
)
3052 const asection
*input_section
;
3053 const asection
*sym_sec
;
3054 struct elf_link_hash_entry
*hash
;
3055 const Elf_Internal_Rela
*rel
;
3056 struct ppc_link_hash_table
*htab
;
3058 struct ppc_stub_hash_entry
*stub_entry
;
3059 struct ppc_link_hash_entry
*h
= (struct ppc_link_hash_entry
*) hash
;
3060 const asection
*id_sec
;
3062 /* If this input section is part of a group of sections sharing one
3063 stub section, then use the id of the first section in the group.
3064 Stub names need to include a section id, as there may well be
3065 more than one stub used to reach say, printf, and we need to
3066 distinguish between them. */
3067 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
3069 if (h
!= NULL
&& h
->stub_cache
!= NULL
3070 && h
->stub_cache
->h
== h
3071 && h
->stub_cache
->id_sec
== id_sec
)
3073 stub_entry
= h
->stub_cache
;
3079 stub_name
= ppc_stub_name (id_sec
, sym_sec
, h
, rel
);
3080 if (stub_name
== NULL
)
3083 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
3084 stub_name
, FALSE
, FALSE
);
3086 h
->stub_cache
= stub_entry
;
3094 /* Add a new stub entry to the stub hash. Not all fields of the new
3095 stub entry are initialised. */
3097 static struct ppc_stub_hash_entry
*
3098 ppc_add_stub (stub_name
, section
, htab
)
3099 const char *stub_name
;
3101 struct ppc_link_hash_table
*htab
;
3105 struct ppc_stub_hash_entry
*stub_entry
;
3107 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
3108 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
3109 if (stub_sec
== NULL
)
3111 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
3112 if (stub_sec
== NULL
)
3118 namelen
= strlen (link_sec
->name
);
3119 len
= namelen
+ sizeof (STUB_SUFFIX
);
3120 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
3124 memcpy (s_name
, link_sec
->name
, namelen
);
3125 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
3126 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
3127 if (stub_sec
== NULL
)
3129 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
3131 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
3134 /* Enter this entry into the linker stub hash table. */
3135 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
, stub_name
,
3137 if (stub_entry
== NULL
)
3139 (*_bfd_error_handler
) (_("%s: cannot create stub entry %s"),
3140 bfd_archive_filename (section
->owner
),
3145 stub_entry
->stub_sec
= stub_sec
;
3146 stub_entry
->stub_offset
= 0;
3147 stub_entry
->id_sec
= link_sec
;
3151 /* Create sections for linker generated code. */
3154 create_linkage_sections (dynobj
, info
)
3156 struct bfd_link_info
*info
;
3158 struct ppc_link_hash_table
*htab
;
3161 htab
= ppc_hash_table (info
);
3163 /* Create .sfpr for code to save and restore fp regs. */
3164 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_READONLY
3165 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3166 htab
->sfpr
= bfd_make_section_anyway (dynobj
, ".sfpr");
3167 if (htab
->sfpr
== NULL
3168 || ! bfd_set_section_flags (dynobj
, htab
->sfpr
, flags
)
3169 || ! bfd_set_section_alignment (dynobj
, htab
->sfpr
, 2))
3172 /* Create .glink for lazy dynamic linking support. */
3173 htab
->sglink
= bfd_make_section_anyway (dynobj
, ".glink");
3174 if (htab
->sglink
== NULL
3175 || ! bfd_set_section_flags (dynobj
, htab
->sglink
, flags
)
3176 || ! bfd_set_section_alignment (dynobj
, htab
->sglink
, 2))
3179 /* Create .branch_lt for plt_branch stubs. */
3180 flags
= (SEC_ALLOC
| SEC_LOAD
3181 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3182 htab
->sbrlt
= bfd_make_section_anyway (dynobj
, ".branch_lt");
3183 if (htab
->sbrlt
== NULL
3184 || ! bfd_set_section_flags (dynobj
, htab
->sbrlt
, flags
)
3185 || ! bfd_set_section_alignment (dynobj
, htab
->sbrlt
, 3))
3190 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
3191 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3192 htab
->srelbrlt
= bfd_make_section_anyway (dynobj
, ".rela.branch_lt");
3194 || ! bfd_set_section_flags (dynobj
, htab
->srelbrlt
, flags
)
3195 || ! bfd_set_section_alignment (dynobj
, htab
->srelbrlt
, 3))
3201 /* Create .got and .rela.got sections in DYNOBJ, and set up
3202 shortcuts to them in our hash table. */
3205 create_got_section (dynobj
, info
)
3207 struct bfd_link_info
*info
;
3209 struct ppc_link_hash_table
*htab
;
3211 if (! _bfd_elf_create_got_section (dynobj
, info
))
3214 htab
= ppc_hash_table (info
);
3215 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3219 htab
->srelgot
= bfd_make_section (dynobj
, ".rela.got");
3221 || ! bfd_set_section_flags (dynobj
, htab
->srelgot
,
3222 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3223 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3225 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
, 3))
3230 /* Create the dynamic sections, and set up shortcuts. */
3233 ppc64_elf_create_dynamic_sections (dynobj
, info
)
3235 struct bfd_link_info
*info
;
3237 struct ppc_link_hash_table
*htab
;
3239 htab
= ppc_hash_table (info
);
3240 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
3243 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
3246 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
3247 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3248 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
3250 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3252 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
3253 || (!info
->shared
&& !htab
->srelbss
))
3259 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3262 ppc64_elf_copy_indirect_symbol (bed
, dir
, ind
)
3263 struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
3264 struct elf_link_hash_entry
*dir
, *ind
;
3266 struct ppc_link_hash_entry
*edir
, *eind
;
3268 edir
= (struct ppc_link_hash_entry
*) dir
;
3269 eind
= (struct ppc_link_hash_entry
*) ind
;
3271 /* Copy over any dynamic relocs we may have on the indirect sym. */
3272 if (eind
->dyn_relocs
!= NULL
)
3274 if (edir
->dyn_relocs
!= NULL
)
3276 struct ppc_dyn_relocs
**pp
;
3277 struct ppc_dyn_relocs
*p
;
3279 if (eind
->elf
.root
.type
== bfd_link_hash_indirect
)
3282 /* Add reloc counts against the weak sym to the strong sym
3283 list. Merge any entries against the same section. */
3284 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
3286 struct ppc_dyn_relocs
*q
;
3288 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3289 if (q
->sec
== p
->sec
)
3291 q
->pc_count
+= p
->pc_count
;
3292 q
->count
+= p
->count
;
3299 *pp
= edir
->dyn_relocs
;
3302 edir
->dyn_relocs
= eind
->dyn_relocs
;
3303 eind
->dyn_relocs
= NULL
;
3306 edir
->is_func
|= eind
->is_func
;
3307 edir
->is_func_descriptor
|= eind
->is_func_descriptor
;
3308 edir
->is_entry
|= eind
->is_entry
;
3310 /* Copy down any references that we may have already seen to the
3311 symbol which just became indirect. */
3312 edir
->elf
.elf_link_hash_flags
|=
3313 (eind
->elf
.elf_link_hash_flags
3314 & (ELF_LINK_HASH_REF_DYNAMIC
3315 | ELF_LINK_HASH_REF_REGULAR
3316 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
3317 | ELF_LINK_NON_GOT_REF
));
3319 /* If we were called to copy over info for a weak sym, that's all. */
3320 if (eind
->elf
.root
.type
!= bfd_link_hash_indirect
)
3323 /* Copy over got entries. */
3324 if (eind
->elf
.got
.glist
!= NULL
)
3326 if (edir
->elf
.got
.glist
!= NULL
)
3328 struct got_entry
**entp
;
3329 struct got_entry
*ent
;
3331 for (entp
= &eind
->elf
.got
.glist
; (ent
= *entp
) != NULL
; )
3333 struct got_entry
*dent
;
3335 for (dent
= edir
->elf
.got
.glist
; dent
!= NULL
; dent
= dent
->next
)
3336 if (dent
->addend
== ent
->addend
3337 && dent
->tls_type
== ent
->tls_type
)
3339 dent
->got
.refcount
+= ent
->got
.refcount
;
3346 *entp
= edir
->elf
.got
.glist
;
3349 edir
->elf
.got
.glist
= eind
->elf
.got
.glist
;
3350 eind
->elf
.got
.glist
= NULL
;
3353 /* And plt entries. */
3354 if (eind
->elf
.plt
.plist
!= NULL
)
3356 if (edir
->elf
.plt
.plist
!= NULL
)
3358 struct plt_entry
**entp
;
3359 struct plt_entry
*ent
;
3361 for (entp
= &eind
->elf
.plt
.plist
; (ent
= *entp
) != NULL
; )
3363 struct plt_entry
*dent
;
3365 for (dent
= edir
->elf
.plt
.plist
; dent
!= NULL
; dent
= dent
->next
)
3366 if (dent
->addend
== ent
->addend
)
3368 dent
->plt
.refcount
+= ent
->plt
.refcount
;
3375 *entp
= edir
->elf
.plt
.plist
;
3378 edir
->elf
.plt
.plist
= eind
->elf
.plt
.plist
;
3379 eind
->elf
.plt
.plist
= NULL
;
3382 if (edir
->elf
.dynindx
== -1)
3384 edir
->elf
.dynindx
= eind
->elf
.dynindx
;
3385 edir
->elf
.dynstr_index
= eind
->elf
.dynstr_index
;
3386 eind
->elf
.dynindx
= -1;
3387 eind
->elf
.dynstr_index
= 0;
3390 BFD_ASSERT (eind
->elf
.dynindx
== -1);
3393 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3394 symbols undefined on the command-line. */
3397 ppc64_elf_mark_entry_syms (info
)
3398 struct bfd_link_info
*info
;
3400 struct ppc_link_hash_table
*htab
;
3401 struct bfd_sym_chain
*sym
;
3403 htab
= ppc_hash_table (info
);
3404 for (sym
= info
->gc_sym_list
; sym
; sym
= sym
->next
)
3406 struct elf_link_hash_entry
*h
;
3408 h
= elf_link_hash_lookup (&htab
->elf
, sym
->name
, FALSE
, FALSE
, FALSE
);
3410 ((struct ppc_link_hash_entry
*) h
)->is_entry
= 1;
3416 update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, r_addend
, tls_type
)
3418 Elf_Internal_Shdr
*symtab_hdr
;
3419 unsigned long r_symndx
;
3423 struct got_entry
**local_got_ents
= elf_local_got_ents (abfd
);
3424 char *local_got_tls_masks
;
3426 if (local_got_ents
== NULL
)
3428 bfd_size_type size
= symtab_hdr
->sh_info
;
3430 size
*= sizeof (*local_got_ents
) + sizeof (*local_got_tls_masks
);
3431 local_got_ents
= (struct got_entry
**) bfd_zalloc (abfd
, size
);
3432 if (local_got_ents
== NULL
)
3434 elf_local_got_ents (abfd
) = local_got_ents
;
3437 if ((tls_type
& TLS_EXPLICIT
) == 0)
3439 struct got_entry
*ent
;
3441 for (ent
= local_got_ents
[r_symndx
]; ent
!= NULL
; ent
= ent
->next
)
3442 if (ent
->addend
== r_addend
&& ent
->tls_type
== tls_type
)
3446 bfd_size_type amt
= sizeof (*ent
);
3447 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3450 ent
->next
= local_got_ents
[r_symndx
];
3451 ent
->addend
= r_addend
;
3452 ent
->tls_type
= tls_type
;
3453 ent
->got
.refcount
= 0;
3454 local_got_ents
[r_symndx
] = ent
;
3456 ent
->got
.refcount
+= 1;
3459 local_got_tls_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
3460 local_got_tls_masks
[r_symndx
] |= tls_type
;
3465 update_plt_info (abfd
, eh
, addend
)
3467 struct ppc_link_hash_entry
*eh
;
3470 struct plt_entry
*ent
;
3472 for (ent
= eh
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
3473 if (ent
->addend
== addend
)
3477 bfd_size_type amt
= sizeof (*ent
);
3478 ent
= (struct plt_entry
*) bfd_alloc (abfd
, amt
);
3481 ent
->next
= eh
->elf
.plt
.plist
;
3482 ent
->addend
= addend
;
3483 ent
->plt
.refcount
= 0;
3484 eh
->elf
.plt
.plist
= ent
;
3486 ent
->plt
.refcount
+= 1;
3487 eh
->elf
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
3492 /* Look through the relocs for a section during the first phase, and
3493 calculate needed space in the global offset table, procedure
3494 linkage table, and dynamic reloc sections. */
3497 ppc64_elf_check_relocs (abfd
, info
, sec
, relocs
)
3499 struct bfd_link_info
*info
;
3501 const Elf_Internal_Rela
*relocs
;
3503 struct ppc_link_hash_table
*htab
;
3504 Elf_Internal_Shdr
*symtab_hdr
;
3505 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
3506 const Elf_Internal_Rela
*rel
;
3507 const Elf_Internal_Rela
*rel_end
;
3509 asection
**opd_sym_map
;
3511 if (info
->relocateable
)
3514 htab
= ppc_hash_table (info
);
3515 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3517 sym_hashes
= elf_sym_hashes (abfd
);
3518 sym_hashes_end
= (sym_hashes
3519 + symtab_hdr
->sh_size
/ sizeof (Elf64_External_Sym
)
3520 - symtab_hdr
->sh_info
);
3524 if (strcmp (bfd_get_section_name (abfd
, sec
), ".opd") == 0)
3526 /* Garbage collection needs some extra help with .opd sections.
3527 We don't want to necessarily keep everything referenced by
3528 relocs in .opd, as that would keep all functions. Instead,
3529 if we reference an .opd symbol (a function descriptor), we
3530 want to keep the function code symbol's section. This is
3531 easy for global symbols, but for local syms we need to keep
3532 information about the associated function section. Later, if
3533 edit_opd deletes entries, we'll use this array to adjust
3534 local syms in .opd. */
3536 asection
*func_section
;
3541 amt
= sec
->_raw_size
* sizeof (union opd_info
) / 24;
3542 opd_sym_map
= (asection
**) bfd_zalloc (abfd
, amt
);
3543 if (opd_sym_map
== NULL
)
3545 ppc64_elf_section_data (sec
)->opd
.func_sec
= opd_sym_map
;
3548 if (htab
->elf
.dynobj
== NULL
)
3549 htab
->elf
.dynobj
= abfd
;
3550 if (htab
->sfpr
== NULL
3551 && !create_linkage_sections (htab
->elf
.dynobj
, info
))
3554 rel_end
= relocs
+ sec
->reloc_count
;
3555 for (rel
= relocs
; rel
< rel_end
; rel
++)
3557 unsigned long r_symndx
;
3558 struct elf_link_hash_entry
*h
;
3559 enum elf_ppc64_reloc_type r_type
;
3562 r_symndx
= ELF64_R_SYM (rel
->r_info
);
3563 if (r_symndx
< symtab_hdr
->sh_info
)
3566 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3568 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
3571 case R_PPC64_GOT_TLSLD16
:
3572 case R_PPC64_GOT_TLSLD16_LO
:
3573 case R_PPC64_GOT_TLSLD16_HI
:
3574 case R_PPC64_GOT_TLSLD16_HA
:
3575 htab
->tlsld_got
.refcount
+= 1;
3576 tls_type
= TLS_TLS
| TLS_LD
;
3579 case R_PPC64_GOT_TLSGD16
:
3580 case R_PPC64_GOT_TLSGD16_LO
:
3581 case R_PPC64_GOT_TLSGD16_HI
:
3582 case R_PPC64_GOT_TLSGD16_HA
:
3583 tls_type
= TLS_TLS
| TLS_GD
;
3586 case R_PPC64_GOT_TPREL16_DS
:
3587 case R_PPC64_GOT_TPREL16_LO_DS
:
3588 case R_PPC64_GOT_TPREL16_HI
:
3589 case R_PPC64_GOT_TPREL16_HA
:
3591 info
->flags
|= DF_STATIC_TLS
;
3592 tls_type
= TLS_TLS
| TLS_TPREL
;
3595 case R_PPC64_GOT_DTPREL16_DS
:
3596 case R_PPC64_GOT_DTPREL16_LO_DS
:
3597 case R_PPC64_GOT_DTPREL16_HI
:
3598 case R_PPC64_GOT_DTPREL16_HA
:
3599 tls_type
= TLS_TLS
| TLS_DTPREL
;
3601 sec
->has_tls_reloc
= 1;
3605 case R_PPC64_GOT16_DS
:
3606 case R_PPC64_GOT16_HA
:
3607 case R_PPC64_GOT16_HI
:
3608 case R_PPC64_GOT16_LO
:
3609 case R_PPC64_GOT16_LO_DS
:
3610 /* This symbol requires a global offset table entry. */
3611 if (htab
->sgot
== NULL
3612 && !create_got_section (htab
->elf
.dynobj
, info
))
3617 struct ppc_link_hash_entry
*eh
;
3618 struct got_entry
*ent
;
3620 eh
= (struct ppc_link_hash_entry
*) h
;
3621 for (ent
= eh
->elf
.got
.glist
; ent
!= NULL
; ent
= ent
->next
)
3622 if (ent
->addend
== rel
->r_addend
3623 && ent
->tls_type
== tls_type
)
3627 bfd_size_type amt
= sizeof (*ent
);
3628 ent
= (struct got_entry
*) bfd_alloc (abfd
, amt
);
3631 ent
->next
= eh
->elf
.got
.glist
;
3632 ent
->addend
= rel
->r_addend
;
3633 ent
->tls_type
= tls_type
;
3634 ent
->got
.refcount
= 0;
3635 eh
->elf
.got
.glist
= ent
;
3637 ent
->got
.refcount
+= 1;
3638 eh
->tls_mask
|= tls_type
;
3641 /* This is a global offset table entry for a local symbol. */
3642 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3643 rel
->r_addend
, tls_type
))
3647 case R_PPC64_PLT16_HA
:
3648 case R_PPC64_PLT16_HI
:
3649 case R_PPC64_PLT16_LO
:
3652 /* This symbol requires a procedure linkage table entry. We
3653 actually build the entry in adjust_dynamic_symbol,
3654 because this might be a case of linking PIC code without
3655 linking in any dynamic objects, in which case we don't
3656 need to generate a procedure linkage table after all. */
3659 /* It does not make sense to have a procedure linkage
3660 table entry for a local symbol. */
3661 bfd_set_error (bfd_error_bad_value
);
3665 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3670 /* The following relocations don't need to propagate the
3671 relocation if linking a shared object since they are
3672 section relative. */
3673 case R_PPC64_SECTOFF
:
3674 case R_PPC64_SECTOFF_LO
:
3675 case R_PPC64_SECTOFF_HI
:
3676 case R_PPC64_SECTOFF_HA
:
3677 case R_PPC64_SECTOFF_DS
:
3678 case R_PPC64_SECTOFF_LO_DS
:
3680 case R_PPC64_TOC16_LO
:
3681 case R_PPC64_TOC16_HI
:
3682 case R_PPC64_TOC16_HA
:
3683 case R_PPC64_TOC16_DS
:
3684 case R_PPC64_TOC16_LO_DS
:
3685 case R_PPC64_DTPREL16
:
3686 case R_PPC64_DTPREL16_LO
:
3687 case R_PPC64_DTPREL16_HI
:
3688 case R_PPC64_DTPREL16_HA
:
3689 case R_PPC64_DTPREL16_DS
:
3690 case R_PPC64_DTPREL16_LO_DS
:
3691 case R_PPC64_DTPREL16_HIGHER
:
3692 case R_PPC64_DTPREL16_HIGHERA
:
3693 case R_PPC64_DTPREL16_HIGHEST
:
3694 case R_PPC64_DTPREL16_HIGHESTA
:
3697 /* This relocation describes the C++ object vtable hierarchy.
3698 Reconstruct it for later use during GC. */
3699 case R_PPC64_GNU_VTINHERIT
:
3700 if (!_bfd_elf64_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3704 /* This relocation describes which C++ vtable entries are actually
3705 used. Record for later use during GC. */
3706 case R_PPC64_GNU_VTENTRY
:
3707 if (!_bfd_elf64_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3712 case R_PPC64_REL14_BRTAKEN
:
3713 case R_PPC64_REL14_BRNTAKEN
:
3714 htab
->has_14bit_branch
= 1;
3719 && h
->root
.root
.string
[0] == '.'
3720 && h
->root
.root
.string
[1] != 0)
3722 /* We may need a .plt entry if the function this reloc
3723 refers to is in a shared lib. */
3724 if (!update_plt_info (abfd
, (struct ppc_link_hash_entry
*) h
,
3727 if (h
== htab
->tls_get_addr
)
3728 sec
->has_tls_reloc
= 1;
3729 else if ((strncmp (h
->root
.root
.string
, ".__tls_get_addr", 15)
3731 && (h
->root
.root
.string
[15] == 0
3732 || h
->root
.root
.string
[15] == '@'))
3734 htab
->tls_get_addr
= h
;
3735 sec
->has_tls_reloc
= 1;
3740 case R_PPC64_TPREL64
:
3741 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
3743 info
->flags
|= DF_STATIC_TLS
;
3746 case R_PPC64_DTPMOD64
:
3747 if (rel
+ 1 < rel_end
3748 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
3749 && rel
[1].r_offset
== rel
->r_offset
+ 8)
3750 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD
;
3752 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_LD
;
3755 case R_PPC64_DTPREL64
:
3756 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
3758 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
3759 && rel
[-1].r_offset
== rel
->r_offset
- 8)
3760 /* This is the second reloc of a dtpmod, dtprel pair.
3761 Don't mark with TLS_DTPREL. */
3765 sec
->has_tls_reloc
= 1;
3768 struct ppc_link_hash_entry
*eh
;
3769 eh
= (struct ppc_link_hash_entry
*) h
;
3770 eh
->tls_mask
|= tls_type
;
3773 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3774 rel
->r_addend
, tls_type
))
3777 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3779 /* One extra to simplify get_tls_mask. */
3780 bfd_size_type amt
= sec
->_raw_size
* sizeof (unsigned) / 8 + 1;
3781 ppc64_elf_section_data (sec
)->t_symndx
3782 = (unsigned *) bfd_zalloc (abfd
, amt
);
3783 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3786 BFD_ASSERT (rel
->r_offset
% 8 == 0);
3787 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8] = r_symndx
;
3789 /* Mark the second slot of a GD or LD entry.
3790 -1 to indicate GD and -2 to indicate LD. */
3791 if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_GD
))
3792 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -1;
3793 else if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_LD
))
3794 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -2;
3797 case R_PPC64_TPREL16
:
3798 case R_PPC64_TPREL16_LO
:
3799 case R_PPC64_TPREL16_HI
:
3800 case R_PPC64_TPREL16_HA
:
3801 case R_PPC64_TPREL16_DS
:
3802 case R_PPC64_TPREL16_LO_DS
:
3803 case R_PPC64_TPREL16_HIGHER
:
3804 case R_PPC64_TPREL16_HIGHERA
:
3805 case R_PPC64_TPREL16_HIGHEST
:
3806 case R_PPC64_TPREL16_HIGHESTA
:
3809 info
->flags
|= DF_STATIC_TLS
;
3814 case R_PPC64_ADDR64
:
3815 if (opd_sym_map
!= NULL
3817 && h
->root
.root
.string
[0] == '.'
3818 && h
->root
.root
.string
[1] != 0)
3820 struct elf_link_hash_entry
*fdh
;
3822 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
3823 FALSE
, FALSE
, FALSE
);
3826 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
3827 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
3828 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
3829 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
3832 if (opd_sym_map
!= NULL
3834 && rel
+ 1 < rel_end
3835 && ((enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
)
3840 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
, sec
,
3845 opd_sym_map
[rel
->r_offset
/ 24] = s
;
3852 case R_PPC64_ADDR14
:
3853 case R_PPC64_ADDR14_BRNTAKEN
:
3854 case R_PPC64_ADDR14_BRTAKEN
:
3855 case R_PPC64_ADDR16
:
3856 case R_PPC64_ADDR16_DS
:
3857 case R_PPC64_ADDR16_HA
:
3858 case R_PPC64_ADDR16_HI
:
3859 case R_PPC64_ADDR16_HIGHER
:
3860 case R_PPC64_ADDR16_HIGHERA
:
3861 case R_PPC64_ADDR16_HIGHEST
:
3862 case R_PPC64_ADDR16_HIGHESTA
:
3863 case R_PPC64_ADDR16_LO
:
3864 case R_PPC64_ADDR16_LO_DS
:
3865 case R_PPC64_ADDR24
:
3866 case R_PPC64_ADDR32
:
3867 case R_PPC64_UADDR16
:
3868 case R_PPC64_UADDR32
:
3869 case R_PPC64_UADDR64
:
3871 /* Don't propagate .opd relocs. */
3872 if (NO_OPD_RELOCS
&& opd_sym_map
!= NULL
)
3875 /* If we are creating a shared library, and this is a reloc
3876 against a global symbol, or a non PC relative reloc
3877 against a local symbol, then we need to copy the reloc
3878 into the shared library. However, if we are linking with
3879 -Bsymbolic, we do not need to copy a reloc against a
3880 global symbol which is defined in an object we are
3881 including in the link (i.e., DEF_REGULAR is set). At
3882 this point we have not seen all the input files, so it is
3883 possible that DEF_REGULAR is not set now but will be set
3884 later (it is never cleared). In case of a weak definition,
3885 DEF_REGULAR may be cleared later by a strong definition in
3886 a shared library. We account for that possibility below by
3887 storing information in the relocs_copied field of the hash
3888 table entry. A similar situation occurs when creating
3889 shared libraries and symbol visibility changes render the
3892 If on the other hand, we are creating an executable, we
3893 may need to keep relocations for symbols satisfied by a
3894 dynamic library if we manage to avoid copy relocs for the
3898 && (sec
->flags
& SEC_ALLOC
) != 0
3899 && (MUST_BE_DYN_RELOC (r_type
)
3901 && (! info
->symbolic
3902 || h
->root
.type
== bfd_link_hash_defweak
3903 || (h
->elf_link_hash_flags
3904 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3906 && (sec
->flags
& SEC_ALLOC
) != 0
3908 && (h
->root
.type
== bfd_link_hash_defweak
3909 || (h
->elf_link_hash_flags
3910 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3912 struct ppc_dyn_relocs
*p
;
3913 struct ppc_dyn_relocs
**head
;
3915 /* We must copy these reloc types into the output file.
3916 Create a reloc section in dynobj and make room for
3923 name
= (bfd_elf_string_from_elf_section
3925 elf_elfheader (abfd
)->e_shstrndx
,
3926 elf_section_data (sec
)->rel_hdr
.sh_name
));
3930 if (strncmp (name
, ".rela", 5) != 0
3931 || strcmp (bfd_get_section_name (abfd
, sec
),
3934 (*_bfd_error_handler
)
3935 (_("%s: bad relocation section name `%s\'"),
3936 bfd_archive_filename (abfd
), name
);
3937 bfd_set_error (bfd_error_bad_value
);
3940 dynobj
= htab
->elf
.dynobj
;
3941 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3946 sreloc
= bfd_make_section (dynobj
, name
);
3947 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3948 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3949 if ((sec
->flags
& SEC_ALLOC
) != 0)
3950 flags
|= SEC_ALLOC
| SEC_LOAD
;
3952 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
3953 || ! bfd_set_section_alignment (dynobj
, sreloc
, 3))
3956 elf_section_data (sec
)->sreloc
= sreloc
;
3959 /* If this is a global symbol, we count the number of
3960 relocations we need for this symbol. */
3963 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
3967 /* Track dynamic relocs needed for local syms too.
3968 We really need local syms available to do this
3972 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
3977 head
= ((struct ppc_dyn_relocs
**)
3978 &elf_section_data (s
)->local_dynrel
);
3982 if (p
== NULL
|| p
->sec
!= sec
)
3984 p
= ((struct ppc_dyn_relocs
*)
3985 bfd_alloc (htab
->elf
.dynobj
,
3986 (bfd_size_type
) sizeof *p
));
3997 if (!MUST_BE_DYN_RELOC (r_type
))
4010 /* Return the section that should be marked against GC for a given
4014 ppc64_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
)
4016 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4017 Elf_Internal_Rela
*rel
;
4018 struct elf_link_hash_entry
*h
;
4019 Elf_Internal_Sym
*sym
;
4021 asection
*rsec
= NULL
;
4025 enum elf_ppc64_reloc_type r_type
;
4026 struct ppc_link_hash_entry
*fdh
;
4028 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4031 case R_PPC64_GNU_VTINHERIT
:
4032 case R_PPC64_GNU_VTENTRY
:
4036 switch (h
->root
.type
)
4038 case bfd_link_hash_defined
:
4039 case bfd_link_hash_defweak
:
4040 fdh
= (struct ppc_link_hash_entry
*) h
;
4042 /* Function descriptor syms cause the associated
4043 function code sym section to be marked. */
4044 if (fdh
->is_func_descriptor
)
4045 rsec
= fdh
->oh
->root
.u
.def
.section
;
4047 /* Function entry syms return NULL if they are in .opd
4048 and are not ._start (or others undefined on the ld
4049 command line). Thus we avoid marking all function
4050 sections, as all functions are referenced in .opd. */
4051 else if ((fdh
->oh
!= NULL
4052 && ((struct ppc_link_hash_entry
*) fdh
->oh
)->is_entry
)
4053 || ppc64_elf_section_data (sec
)->opd
.func_sec
== NULL
)
4054 rsec
= h
->root
.u
.def
.section
;
4057 case bfd_link_hash_common
:
4058 rsec
= h
->root
.u
.c
.p
->section
;
4068 asection
**opd_sym_section
;
4070 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
4071 opd_sym_section
= ppc64_elf_section_data (rsec
)->opd
.func_sec
;
4072 if (opd_sym_section
!= NULL
)
4073 rsec
= opd_sym_section
[sym
->st_value
/ 24];
4074 else if (ppc64_elf_section_data (sec
)->opd
.func_sec
!= NULL
)
4081 /* Update the .got, .plt. and dynamic reloc reference counts for the
4082 section being removed. */
4085 ppc64_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
4087 struct bfd_link_info
*info
;
4089 const Elf_Internal_Rela
*relocs
;
4091 struct ppc_link_hash_table
*htab
;
4092 Elf_Internal_Shdr
*symtab_hdr
;
4093 struct elf_link_hash_entry
**sym_hashes
;
4094 struct got_entry
**local_got_ents
;
4095 const Elf_Internal_Rela
*rel
, *relend
;
4097 elf_section_data (sec
)->local_dynrel
= NULL
;
4099 htab
= ppc_hash_table (info
);
4100 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
4101 sym_hashes
= elf_sym_hashes (abfd
);
4102 local_got_ents
= elf_local_got_ents (abfd
);
4104 relend
= relocs
+ sec
->reloc_count
;
4105 for (rel
= relocs
; rel
< relend
; rel
++)
4107 unsigned long r_symndx
;
4108 enum elf_ppc64_reloc_type r_type
;
4109 struct elf_link_hash_entry
*h
;
4112 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4113 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4116 case R_PPC64_GOT_TLSLD16
:
4117 case R_PPC64_GOT_TLSLD16_LO
:
4118 case R_PPC64_GOT_TLSLD16_HI
:
4119 case R_PPC64_GOT_TLSLD16_HA
:
4120 htab
->tlsld_got
.refcount
-= 1;
4121 tls_type
= TLS_TLS
| TLS_LD
;
4124 case R_PPC64_GOT_TLSGD16
:
4125 case R_PPC64_GOT_TLSGD16_LO
:
4126 case R_PPC64_GOT_TLSGD16_HI
:
4127 case R_PPC64_GOT_TLSGD16_HA
:
4128 tls_type
= TLS_TLS
| TLS_GD
;
4131 case R_PPC64_GOT_TPREL16_DS
:
4132 case R_PPC64_GOT_TPREL16_LO_DS
:
4133 case R_PPC64_GOT_TPREL16_HI
:
4134 case R_PPC64_GOT_TPREL16_HA
:
4135 tls_type
= TLS_TLS
| TLS_TPREL
;
4138 case R_PPC64_GOT_DTPREL16_DS
:
4139 case R_PPC64_GOT_DTPREL16_LO_DS
:
4140 case R_PPC64_GOT_DTPREL16_HI
:
4141 case R_PPC64_GOT_DTPREL16_HA
:
4142 tls_type
= TLS_TLS
| TLS_DTPREL
;
4146 case R_PPC64_GOT16_DS
:
4147 case R_PPC64_GOT16_HA
:
4148 case R_PPC64_GOT16_HI
:
4149 case R_PPC64_GOT16_LO
:
4150 case R_PPC64_GOT16_LO_DS
:
4153 struct got_entry
*ent
;
4155 if (r_symndx
>= symtab_hdr
->sh_info
)
4157 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4161 ent
= local_got_ents
[r_symndx
];
4163 for (; ent
!= NULL
; ent
= ent
->next
)
4164 if (ent
->addend
== rel
->r_addend
4165 && ent
->tls_type
== tls_type
)
4169 if (ent
->got
.refcount
> 0)
4170 ent
->got
.refcount
-= 1;
4174 case R_PPC64_PLT16_HA
:
4175 case R_PPC64_PLT16_HI
:
4176 case R_PPC64_PLT16_LO
:
4180 case R_PPC64_REL14_BRNTAKEN
:
4181 case R_PPC64_REL14_BRTAKEN
:
4183 if (r_symndx
>= symtab_hdr
->sh_info
)
4185 struct plt_entry
*ent
;
4187 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4188 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4189 if (ent
->addend
== rel
->r_addend
)
4193 if (ent
->plt
.refcount
> 0)
4194 ent
->plt
.refcount
-= 1;
4201 if (r_symndx
>= symtab_hdr
->sh_info
)
4203 struct ppc_link_hash_entry
*eh
;
4204 struct ppc_dyn_relocs
**pp
;
4205 struct ppc_dyn_relocs
*p
;
4207 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4208 eh
= (struct ppc_link_hash_entry
*) h
;
4210 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4222 case R_PPC64_DTPMOD64
:
4223 case R_PPC64_DTPREL64
:
4224 case R_PPC64_TPREL64
:
4225 case R_PPC64_ADDR14
:
4226 case R_PPC64_ADDR14_BRNTAKEN
:
4227 case R_PPC64_ADDR14_BRTAKEN
:
4228 case R_PPC64_ADDR16
:
4229 case R_PPC64_ADDR16_DS
:
4230 case R_PPC64_ADDR16_HA
:
4231 case R_PPC64_ADDR16_HI
:
4232 case R_PPC64_ADDR16_HIGHER
:
4233 case R_PPC64_ADDR16_HIGHERA
:
4234 case R_PPC64_ADDR16_HIGHEST
:
4235 case R_PPC64_ADDR16_HIGHESTA
:
4236 case R_PPC64_ADDR16_LO
:
4237 case R_PPC64_ADDR16_LO_DS
:
4238 case R_PPC64_ADDR24
:
4239 case R_PPC64_ADDR32
:
4240 case R_PPC64_ADDR64
:
4241 case R_PPC64_UADDR16
:
4242 case R_PPC64_UADDR32
:
4243 case R_PPC64_UADDR64
:
4245 if (r_symndx
>= symtab_hdr
->sh_info
)
4247 struct ppc_link_hash_entry
*eh
;
4248 struct ppc_dyn_relocs
**pp
;
4249 struct ppc_dyn_relocs
*p
;
4251 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4252 eh
= (struct ppc_link_hash_entry
*) h
;
4254 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4272 /* Called via elf_link_hash_traverse to transfer dynamic linking
4273 information on function code symbol entries to their corresponding
4274 function descriptor symbol entries. */
4276 func_desc_adjust (h
, inf
)
4277 struct elf_link_hash_entry
*h
;
4280 struct bfd_link_info
*info
;
4281 struct ppc_link_hash_table
*htab
;
4282 struct plt_entry
*ent
;
4284 if (h
->root
.type
== bfd_link_hash_indirect
)
4287 if (h
->root
.type
== bfd_link_hash_warning
)
4288 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4290 info
= (struct bfd_link_info
*) inf
;
4291 htab
= ppc_hash_table (info
);
4293 /* If this is a function code symbol, transfer dynamic linking
4294 information to the function descriptor symbol. */
4295 if (!((struct ppc_link_hash_entry
*) h
)->is_func
)
4298 if (h
->root
.type
== bfd_link_hash_undefweak
4299 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
))
4300 htab
->have_undefweak
= TRUE
;
4302 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4303 if (ent
->plt
.refcount
> 0)
4306 && h
->root
.root
.string
[0] == '.'
4307 && h
->root
.root
.string
[1] != '\0')
4309 struct elf_link_hash_entry
*fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4310 bfd_boolean force_local
;
4312 /* Find the corresponding function descriptor symbol. Create it
4313 as undefined if necessary. */
4316 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
4317 FALSE
, FALSE
, TRUE
);
4321 && (h
->root
.type
== bfd_link_hash_undefined
4322 || h
->root
.type
== bfd_link_hash_undefweak
))
4326 struct bfd_link_hash_entry
*bh
;
4328 abfd
= h
->root
.u
.undef
.abfd
;
4329 newsym
= bfd_make_empty_symbol (abfd
);
4330 newsym
->name
= h
->root
.root
.string
+ 1;
4331 newsym
->section
= bfd_und_section_ptr
;
4333 newsym
->flags
= BSF_OBJECT
;
4334 if (h
->root
.type
== bfd_link_hash_undefweak
)
4335 newsym
->flags
|= BSF_WEAK
;
4338 if ( !(_bfd_generic_link_add_one_symbol
4339 (info
, abfd
, newsym
->name
, newsym
->flags
,
4340 newsym
->section
, newsym
->value
, NULL
, FALSE
, FALSE
, &bh
)))
4344 fdh
= (struct elf_link_hash_entry
*) bh
;
4345 fdh
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4349 && (fdh
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0
4351 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4352 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0))
4354 if (fdh
->dynindx
== -1)
4355 if (! bfd_elf64_link_record_dynamic_symbol (info
, fdh
))
4357 fdh
->elf_link_hash_flags
|= (h
->elf_link_hash_flags
4358 & (ELF_LINK_HASH_REF_REGULAR
4359 | ELF_LINK_HASH_REF_DYNAMIC
4360 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4361 | ELF_LINK_NON_GOT_REF
));
4362 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4364 fdh
->plt
.plist
= h
->plt
.plist
;
4365 fdh
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
4367 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
4368 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
4369 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
4372 /* Now that the info is on the function descriptor, clear the
4373 function code sym info. Any function code syms for which we
4374 don't have a definition in a regular file, we force local.
4375 This prevents a shared library from exporting syms that have
4376 been imported from another library. Function code syms that
4377 are really in the library we must leave global to prevent the
4378 linker dragging in a definition from a static library. */
4379 force_local
= (info
->shared
4380 && ((h
->elf_link_hash_flags
4381 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4383 || (fdh
->elf_link_hash_flags
4384 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4385 || (fdh
->elf_link_hash_flags
4386 & ELF_LINK_FORCED_LOCAL
) != 0));
4387 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4393 #define MIN_SAVE_FPR 14
4394 #define MAX_SAVE_FPR 31
4396 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4397 this hook to a) provide some gcc support functions, and b) transfer
4398 dynamic linking information gathered so far on function code symbol
4399 entries, to their corresponding function descriptor symbol entries. */
4401 ppc64_elf_func_desc_adjust (obfd
, info
)
4402 bfd
*obfd ATTRIBUTE_UNUSED
;
4403 struct bfd_link_info
*info
;
4405 struct ppc_link_hash_table
*htab
;
4406 unsigned int lowest_savef
= MAX_SAVE_FPR
+ 2;
4407 unsigned int lowest_restf
= MAX_SAVE_FPR
+ 2;
4409 struct elf_link_hash_entry
*h
;
4413 htab
= ppc_hash_table (info
);
4415 if (htab
->sfpr
== NULL
)
4416 /* We don't have any relocs. */
4419 /* First provide any missing ._savef* and ._restf* functions. */
4420 memcpy (sym
, "._savef14", 10);
4421 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4423 sym
[7] = i
/ 10 + '0';
4424 sym
[8] = i
% 10 + '0';
4425 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4427 && h
->root
.type
== bfd_link_hash_undefined
)
4429 if (lowest_savef
> i
)
4431 h
->root
.type
= bfd_link_hash_defined
;
4432 h
->root
.u
.def
.section
= htab
->sfpr
;
4433 h
->root
.u
.def
.value
= (i
- lowest_savef
) * 4;
4435 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4436 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4440 memcpy (sym
, "._restf14", 10);
4441 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4443 sym
[7] = i
/ 10 + '0';
4444 sym
[8] = i
% 10 + '0';
4445 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4447 && h
->root
.type
== bfd_link_hash_undefined
)
4449 if (lowest_restf
> i
)
4451 h
->root
.type
= bfd_link_hash_defined
;
4452 h
->root
.u
.def
.section
= htab
->sfpr
;
4453 h
->root
.u
.def
.value
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4454 + (i
- lowest_restf
) * 4);
4456 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4457 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4461 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, (PTR
) info
);
4463 htab
->sfpr
->_raw_size
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4464 + (MAX_SAVE_FPR
+ 2 - lowest_restf
) * 4);
4466 if (htab
->sfpr
->_raw_size
== 0)
4468 if (!htab
->have_undefweak
)
4470 _bfd_strip_section_from_output (info
, htab
->sfpr
);
4474 htab
->sfpr
->_raw_size
= 4;
4477 p
= (bfd_byte
*) bfd_alloc (htab
->elf
.dynobj
, htab
->sfpr
->_raw_size
);
4480 htab
->sfpr
->contents
= p
;
4482 for (i
= lowest_savef
; i
<= MAX_SAVE_FPR
; i
++)
4484 unsigned int fpr
= i
<< 21;
4485 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4486 bfd_put_32 (htab
->elf
.dynobj
, STFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4489 if (lowest_savef
<= MAX_SAVE_FPR
)
4491 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4495 for (i
= lowest_restf
; i
<= MAX_SAVE_FPR
; i
++)
4497 unsigned int fpr
= i
<< 21;
4498 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4499 bfd_put_32 (htab
->elf
.dynobj
, LFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4502 if (lowest_restf
<= MAX_SAVE_FPR
4503 || htab
->sfpr
->_raw_size
== 4)
4505 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4511 /* Adjust a symbol defined by a dynamic object and referenced by a
4512 regular object. The current definition is in some section of the
4513 dynamic object, but we're not including those sections. We have to
4514 change the definition to something the rest of the link can
4518 ppc64_elf_adjust_dynamic_symbol (info
, h
)
4519 struct bfd_link_info
*info
;
4520 struct elf_link_hash_entry
*h
;
4522 struct ppc_link_hash_table
*htab
;
4523 struct ppc_link_hash_entry
* eh
;
4524 struct ppc_dyn_relocs
*p
;
4526 unsigned int power_of_two
;
4528 htab
= ppc_hash_table (info
);
4530 /* Deal with function syms. */
4531 if (h
->type
== STT_FUNC
4532 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4534 /* Clear procedure linkage table information for any symbol that
4535 won't need a .plt entry. */
4536 struct plt_entry
*ent
;
4537 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4538 if (ent
->plt
.refcount
> 0)
4540 if (!((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
4542 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
4544 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) == 0
4545 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) == 0))
4547 h
->plt
.plist
= NULL
;
4548 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4553 h
->plt
.plist
= NULL
;
4555 /* If this is a weak symbol, and there is a real definition, the
4556 processor independent code will have arranged for us to see the
4557 real definition first, and we can just use the same value. */
4558 if (h
->weakdef
!= NULL
)
4560 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
4561 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
4562 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
4563 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
4567 /* This is a reference to a symbol defined by a dynamic object which
4568 is not a function. */
4570 /* If we are creating a shared library, we must presume that the
4571 only references to the symbol are via the global offset table.
4572 For such cases we need not do anything here; the relocations will
4573 be handled correctly by relocate_section. */
4577 /* If there are no references to this symbol that do not use the
4578 GOT, we don't need to generate a copy reloc. */
4579 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
4582 eh
= (struct ppc_link_hash_entry
*) h
;
4583 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4585 s
= p
->sec
->output_section
;
4586 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
4590 /* If we didn't find any dynamic relocs in read-only sections, then
4591 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4594 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
4598 /* We must allocate the symbol in our .dynbss section, which will
4599 become part of the .bss section of the executable. There will be
4600 an entry for this symbol in the .dynsym section. The dynamic
4601 object will contain position independent code, so all references
4602 from the dynamic object to this symbol will go through the global
4603 offset table. The dynamic linker will use the .dynsym entry to
4604 determine the address it must put in the global offset table, so
4605 both the dynamic object and the regular object will refer to the
4606 same memory location for the variable. */
4608 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4609 to copy the initial value out of the dynamic object and into the
4610 runtime process image. We need to remember the offset into the
4611 .rela.bss section we are going to use. */
4612 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4614 htab
->srelbss
->_raw_size
+= sizeof (Elf64_External_Rela
);
4615 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
4618 /* We need to figure out the alignment required for this symbol. I
4619 have no idea how ELF linkers handle this. */
4620 power_of_two
= bfd_log2 (h
->size
);
4621 if (power_of_two
> 4)
4624 /* Apply the required alignment. */
4626 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
, (bfd_size_type
) (1 << power_of_two
));
4627 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
4629 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
4633 /* Define the symbol as being at this point in the section. */
4634 h
->root
.u
.def
.section
= s
;
4635 h
->root
.u
.def
.value
= s
->_raw_size
;
4637 /* Increment the section size to make room for the symbol. */
4638 s
->_raw_size
+= h
->size
;
4643 /* If given a function descriptor symbol, hide both the function code
4644 sym and the descriptor. */
4646 ppc64_elf_hide_symbol (info
, h
, force_local
)
4647 struct bfd_link_info
*info
;
4648 struct elf_link_hash_entry
*h
;
4649 bfd_boolean force_local
;
4651 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4653 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
4655 struct elf_link_hash_entry
*fh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4660 struct ppc_link_hash_table
*htab
;
4663 /* We aren't supposed to use alloca in BFD because on
4664 systems which do not have alloca the version in libiberty
4665 calls xmalloc, which might cause the program to crash
4666 when it runs out of memory. This function doesn't have a
4667 return status, so there's no way to gracefully return an
4668 error. So cheat. We know that string[-1] can be safely
4669 dereferenced; It's either a string in an ELF string
4670 table, or allocated in an objalloc structure. */
4672 p
= h
->root
.root
.string
- 1;
4675 htab
= ppc_hash_table (info
);
4676 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4679 /* Unfortunately, if it so happens that the string we were
4680 looking for was allocated immediately before this string,
4681 then we overwrote the string terminator. That's the only
4682 reason the lookup should fail. */
4685 q
= h
->root
.root
.string
+ strlen (h
->root
.root
.string
);
4686 while (q
>= h
->root
.root
.string
&& *q
== *p
)
4688 if (q
< h
->root
.root
.string
&& *p
== '.')
4689 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4693 ((struct ppc_link_hash_entry
*) h
)->oh
= fh
;
4694 ((struct ppc_link_hash_entry
*) fh
)->oh
= h
;
4698 _bfd_elf_link_hash_hide_symbol (info
, fh
, force_local
);
4703 get_sym_h (hp
, symp
, symsecp
, tls_maskp
, locsymsp
, r_symndx
, ibfd
)
4704 struct elf_link_hash_entry
**hp
;
4705 Elf_Internal_Sym
**symp
;
4708 Elf_Internal_Sym
**locsymsp
;
4709 unsigned long r_symndx
;
4712 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4714 if (r_symndx
>= symtab_hdr
->sh_info
)
4716 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
4717 struct elf_link_hash_entry
*h
;
4719 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4720 while (h
->root
.type
== bfd_link_hash_indirect
4721 || h
->root
.type
== bfd_link_hash_warning
)
4722 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4730 if (symsecp
!= NULL
)
4732 asection
*symsec
= NULL
;
4733 if (h
->root
.type
== bfd_link_hash_defined
4734 || h
->root
.type
== bfd_link_hash_defweak
)
4735 symsec
= h
->root
.u
.def
.section
;
4739 if (tls_maskp
!= NULL
)
4741 struct ppc_link_hash_entry
*eh
;
4743 eh
= (struct ppc_link_hash_entry
*) h
;
4744 *tls_maskp
= &eh
->tls_mask
;
4749 Elf_Internal_Sym
*sym
;
4750 Elf_Internal_Sym
*locsyms
= *locsymsp
;
4752 if (locsyms
== NULL
)
4754 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4755 if (locsyms
== NULL
)
4756 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
4757 symtab_hdr
->sh_info
,
4758 0, NULL
, NULL
, NULL
);
4759 if (locsyms
== NULL
)
4761 *locsymsp
= locsyms
;
4763 sym
= locsyms
+ r_symndx
;
4771 if (symsecp
!= NULL
)
4773 asection
*symsec
= NULL
;
4774 if ((sym
->st_shndx
!= SHN_UNDEF
4775 && sym
->st_shndx
< SHN_LORESERVE
)
4776 || sym
->st_shndx
> SHN_HIRESERVE
)
4777 symsec
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
4781 if (tls_maskp
!= NULL
)
4783 struct got_entry
**lgot_ents
;
4787 lgot_ents
= elf_local_got_ents (ibfd
);
4788 if (lgot_ents
!= NULL
)
4790 char *lgot_masks
= (char *) (lgot_ents
+ symtab_hdr
->sh_info
);
4791 tls_mask
= &lgot_masks
[r_symndx
];
4793 *tls_maskp
= tls_mask
;
4799 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4800 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4801 type suitable for optimization, and 1 otherwise. */
4804 get_tls_mask (tls_maskp
, locsymsp
, rel
, ibfd
)
4806 Elf_Internal_Sym
**locsymsp
;
4807 const Elf_Internal_Rela
*rel
;
4810 unsigned long r_symndx
;
4811 unsigned int next_r
;
4812 struct elf_link_hash_entry
*h
;
4813 Elf_Internal_Sym
*sym
;
4817 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4818 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4821 if ((*tls_maskp
!= NULL
&& **tls_maskp
!= 0)
4823 || ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
4826 /* Look inside a TOC section too. */
4829 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
4830 off
= h
->root
.u
.def
.value
;
4833 off
= sym
->st_value
;
4834 off
+= rel
->r_addend
;
4835 BFD_ASSERT (off
% 8 == 0);
4836 r_symndx
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8];
4837 next_r
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8 + 1];
4838 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4841 || h
->root
.type
== bfd_link_hash_defined
4842 || h
->root
.type
== bfd_link_hash_defweak
)
4844 if (next_r
== (unsigned) -1)
4846 if (next_r
== (unsigned) -2
4848 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
4855 ppc64_elf_edit_opd (obfd
, info
)
4857 struct bfd_link_info
*info
;
4861 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
4864 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
4865 Elf_Internal_Shdr
*symtab_hdr
;
4866 Elf_Internal_Sym
*local_syms
;
4867 struct elf_link_hash_entry
**sym_hashes
;
4871 bfd_boolean need_edit
;
4873 sec
= bfd_get_section_by_name (ibfd
, ".opd");
4877 amt
= sec
->_raw_size
* sizeof (long) / 24;
4878 adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
4881 /* Must be a ld -r link. ie. check_relocs hasn't been
4883 adjust
= (long *) bfd_zalloc (obfd
, amt
);
4884 ppc64_elf_section_data (sec
)->opd
.adjust
= adjust
;
4886 memset (adjust
, 0, (size_t) amt
);
4888 if (sec
->output_section
== bfd_abs_section_ptr
)
4891 /* Look through the section relocs. */
4892 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
4896 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4897 sym_hashes
= elf_sym_hashes (ibfd
);
4899 /* Read the relocations. */
4900 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
4901 (Elf_Internal_Rela
*) NULL
,
4903 if (relstart
== NULL
)
4906 /* First run through the relocs to check they are sane, and to
4907 determine whether we need to edit this opd section. */
4910 relend
= relstart
+ sec
->reloc_count
;
4911 for (rel
= relstart
; rel
< relend
; rel
++)
4913 enum elf_ppc64_reloc_type r_type
;
4914 unsigned long r_symndx
;
4916 struct elf_link_hash_entry
*h
;
4917 Elf_Internal_Sym
*sym
;
4919 /* .opd contains a regular array of 24 byte entries. We're
4920 only interested in the reloc pointing to a function entry
4922 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4923 if (r_type
== R_PPC64_TOC
)
4926 if (r_type
!= R_PPC64_ADDR64
)
4928 (*_bfd_error_handler
)
4929 (_("%s: unexpected reloc type %u in .opd section"),
4930 bfd_archive_filename (ibfd
), r_type
);
4935 if (rel
+ 1 >= relend
)
4937 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
);
4938 if (r_type
!= R_PPC64_TOC
)
4941 if (rel
->r_offset
!= offset
)
4943 /* If someone messes with .opd alignment then after a
4944 "ld -r" we might have padding in the middle of .opd.
4945 Also, there's nothing to prevent someone putting
4946 something silly in .opd with the assembler. No .opd
4947 optimization for them! */
4948 (*_bfd_error_handler
)
4949 (_("%s: .opd is not a regular array of opd entries"),
4950 bfd_archive_filename (ibfd
));
4955 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4956 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4958 goto error_free_rel
;
4960 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
4962 const char *sym_name
;
4964 sym_name
= h
->root
.root
.string
;
4966 sym_name
= bfd_elf_local_sym_name (ibfd
, sym
);
4968 (*_bfd_error_handler
)
4969 (_("%s: undefined sym `%s' in .opd section"),
4970 bfd_archive_filename (ibfd
),
4976 /* opd entries are always for functions defined in the
4977 current input bfd. If the symbol isn't defined in the
4978 input bfd, then we won't be using the function in this
4979 bfd; It must be defined in a linkonce section in another
4980 bfd, or is weak. It's also possible that we are
4981 discarding the function due to a linker script /DISCARD/,
4982 which we test for via the output_section. */
4983 if (sym_sec
->owner
!= ibfd
4984 || sym_sec
->output_section
== bfd_abs_section_ptr
)
4992 Elf_Internal_Rela
*write_rel
;
4993 bfd_byte
*rptr
, *wptr
;
4996 /* This seems a waste of time as input .opd sections are all
4997 zeros as generated by gcc, but I suppose there's no reason
4998 this will always be so. We might start putting something in
4999 the third word of .opd entries. */
5000 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
5002 bfd_byte
*loc
= bfd_alloc (ibfd
, sec
->_raw_size
);
5004 || !bfd_get_section_contents (ibfd
, sec
, loc
, (bfd_vma
) 0,
5007 if (local_syms
!= NULL
5008 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5011 if (elf_section_data (sec
)->relocs
!= relstart
)
5015 sec
->contents
= loc
;
5016 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
5019 elf_section_data (sec
)->relocs
= relstart
;
5021 wptr
= sec
->contents
;
5022 rptr
= sec
->contents
;
5023 write_rel
= relstart
;
5026 for (rel
= relstart
; rel
< relend
; rel
++)
5028 if (rel
->r_offset
== offset
)
5030 unsigned long r_symndx
;
5032 struct elf_link_hash_entry
*h
;
5033 Elf_Internal_Sym
*sym
;
5035 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5036 get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
5039 skip
= (sym_sec
->owner
!= ibfd
5040 || sym_sec
->output_section
== bfd_abs_section_ptr
);
5043 if (h
!= NULL
&& sym_sec
->owner
== ibfd
)
5045 /* Arrange for the function descriptor sym
5047 struct ppc_link_hash_entry
*fdh
;
5048 struct ppc_link_hash_entry
*fh
;
5050 fh
= (struct ppc_link_hash_entry
*) h
;
5051 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5054 const char *fd_name
;
5055 struct ppc_link_hash_table
*htab
;
5057 fd_name
= h
->root
.root
.string
+ 1;
5058 htab
= ppc_hash_table (info
);
5059 fdh
= (struct ppc_link_hash_entry
*)
5060 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5061 FALSE
, FALSE
, FALSE
);
5062 fdh
->is_func_descriptor
= 1;
5068 fdh
->elf
.root
.u
.def
.value
= 0;
5069 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
5074 /* We'll be keeping this opd entry. */
5078 /* Redefine the function descriptor symbol
5079 to this location in the opd section.
5080 We've checked above that opd relocs are
5082 struct ppc_link_hash_entry
*fdh
;
5083 struct ppc_link_hash_entry
*fh
;
5085 fh
= (struct ppc_link_hash_entry
*) h
;
5086 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5089 const char *fd_name
;
5090 struct ppc_link_hash_table
*htab
;
5092 fd_name
= h
->root
.root
.string
+ 1;
5093 htab
= ppc_hash_table (info
);
5094 fdh
= (struct ppc_link_hash_entry
*)
5095 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5096 FALSE
, FALSE
, FALSE
);
5097 fdh
->is_func_descriptor
= 1;
5103 fdh
->elf
.root
.u
.def
.value
= wptr
- sec
->contents
;
5107 /* Local syms are a bit tricky. We could
5108 tweak them as they can be cached, but
5109 we'd need to look through the local syms
5110 for the function descriptor sym which we
5111 don't have at the moment. So keep an
5112 array of adjustments. */
5113 adjust
[rel
->r_offset
/ 24] = wptr
- rptr
;
5117 memcpy (wptr
, rptr
, 24);
5124 /* We need to adjust any reloc offsets to point to the
5125 new opd entries. While we're at it, we may as well
5126 remove redundant relocs. */
5129 rel
->r_offset
+= wptr
- rptr
;
5130 if (write_rel
!= rel
)
5131 memcpy (write_rel
, rel
, sizeof (*rel
));
5136 sec
->_cooked_size
= wptr
- sec
->contents
;
5137 sec
->reloc_count
= write_rel
- relstart
;
5138 /* Fudge the size too, as this is used later in
5139 elf_bfd_final_link if we are emitting relocs. */
5140 elf_section_data (sec
)->rel_hdr
.sh_size
5141 = sec
->reloc_count
* elf_section_data (sec
)->rel_hdr
.sh_entsize
;
5142 BFD_ASSERT (elf_section_data (sec
)->rel_hdr2
== NULL
);
5144 else if (elf_section_data (sec
)->relocs
!= relstart
)
5147 if (local_syms
!= NULL
5148 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5150 if (!info
->keep_memory
)
5153 symtab_hdr
->contents
= (unsigned char *) local_syms
;
5160 /* Set htab->tls_sec. */
5163 ppc64_elf_tls_setup (obfd
, info
)
5165 struct bfd_link_info
*info
;
5168 struct ppc_link_hash_table
*htab
;
5170 for (tls
= obfd
->sections
; tls
!= NULL
; tls
= tls
->next
)
5171 if ((tls
->flags
& (SEC_THREAD_LOCAL
| SEC_LOAD
))
5172 == (SEC_THREAD_LOCAL
| SEC_LOAD
))
5175 htab
= ppc_hash_table (info
);
5176 htab
->tls_sec
= tls
;
5178 if (htab
->tls_get_addr
!= NULL
)
5180 struct elf_link_hash_entry
*h
= htab
->tls_get_addr
;
5182 while (h
->root
.type
== bfd_link_hash_indirect
5183 || h
->root
.type
== bfd_link_hash_warning
)
5184 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5186 htab
->tls_get_addr
= h
;
5192 /* Run through all the TLS relocs looking for optimization
5193 opportunities. The linker has been hacked (see ppc64elf.em) to do
5194 a preliminary section layout so that we know the TLS segment
5195 offsets. We can't optimize earlier because some optimizations need
5196 to know the tp offset, and we need to optimize before allocating
5197 dynamic relocations. */
5200 ppc64_elf_tls_optimize (obfd
, info
)
5201 bfd
*obfd ATTRIBUTE_UNUSED
;
5202 struct bfd_link_info
*info
;
5206 struct ppc_link_hash_table
*htab
;
5208 if (info
->relocateable
|| info
->shared
)
5211 htab
= ppc_hash_table (info
);
5212 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5214 Elf_Internal_Sym
*locsyms
= NULL
;
5216 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5217 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5219 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5220 int expecting_tls_get_addr
;
5222 /* Read the relocations. */
5223 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
5224 (Elf_Internal_Rela
*) NULL
,
5226 if (relstart
== NULL
)
5229 expecting_tls_get_addr
= 0;
5230 relend
= relstart
+ sec
->reloc_count
;
5231 for (rel
= relstart
; rel
< relend
; rel
++)
5233 enum elf_ppc64_reloc_type r_type
;
5234 unsigned long r_symndx
;
5235 struct elf_link_hash_entry
*h
;
5236 Elf_Internal_Sym
*sym
;
5239 char tls_set
, tls_clear
, tls_type
= 0;
5241 bfd_boolean ok_tprel
, is_local
;
5243 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5244 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_mask
, &locsyms
,
5248 if (elf_section_data (sec
)->relocs
!= relstart
)
5251 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5252 != (unsigned char *) locsyms
))
5259 if (h
->root
.type
!= bfd_link_hash_defined
5260 && h
->root
.type
!= bfd_link_hash_defweak
)
5262 value
= h
->root
.u
.def
.value
;
5265 value
= sym
->st_value
;
5270 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5273 value
+= sym_sec
->output_offset
;
5274 value
+= sym_sec
->output_section
->vma
;
5275 value
-= htab
->tls_sec
->vma
;
5276 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
5277 < (bfd_vma
) 1 << 32);
5281 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
5284 case R_PPC64_GOT_TLSLD16
:
5285 case R_PPC64_GOT_TLSLD16_LO
:
5286 case R_PPC64_GOT_TLSLD16_HI
:
5287 case R_PPC64_GOT_TLSLD16_HA
:
5288 /* These relocs should never be against a symbol
5289 defined in a shared lib. Leave them alone if
5290 that turns out to be the case. */
5294 htab
->tlsld_got
.refcount
-= 1;
5298 tls_type
= TLS_TLS
| TLS_LD
;
5299 expecting_tls_get_addr
= 1;
5302 case R_PPC64_GOT_TLSGD16
:
5303 case R_PPC64_GOT_TLSGD16_LO
:
5304 case R_PPC64_GOT_TLSGD16_HI
:
5305 case R_PPC64_GOT_TLSGD16_HA
:
5311 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5313 tls_type
= TLS_TLS
| TLS_GD
;
5314 expecting_tls_get_addr
= 1;
5317 case R_PPC64_GOT_TPREL16_DS
:
5318 case R_PPC64_GOT_TPREL16_LO_DS
:
5319 case R_PPC64_GOT_TPREL16_HI
:
5320 case R_PPC64_GOT_TPREL16_HA
:
5321 expecting_tls_get_addr
= 0;
5326 tls_clear
= TLS_TPREL
;
5327 tls_type
= TLS_TLS
| TLS_TPREL
;
5334 case R_PPC64_REL14_BRTAKEN
:
5335 case R_PPC64_REL14_BRNTAKEN
:
5338 && h
== htab
->tls_get_addr
)
5340 if (!expecting_tls_get_addr
5342 && ((ELF64_R_TYPE (rel
[-1].r_info
)
5344 || (ELF64_R_TYPE (rel
[-1].r_info
)
5345 == R_PPC64_TOC16_LO
)))
5347 /* Check for toc tls entries. */
5351 retval
= get_tls_mask (&toc_tls
, &locsyms
,
5355 if (toc_tls
!= NULL
)
5356 expecting_tls_get_addr
= retval
> 1;
5359 if (expecting_tls_get_addr
)
5361 struct plt_entry
*ent
;
5362 for (ent
= h
->plt
.plist
; ent
; ent
= ent
->next
)
5363 if (ent
->addend
== 0)
5365 if (ent
->plt
.refcount
> 0)
5366 ent
->plt
.refcount
-= 1;
5371 expecting_tls_get_addr
= 0;
5374 case R_PPC64_TPREL64
:
5375 expecting_tls_get_addr
= 0;
5379 tls_set
= TLS_EXPLICIT
;
5380 tls_clear
= TLS_TPREL
;
5386 case R_PPC64_DTPMOD64
:
5387 expecting_tls_get_addr
= 0;
5388 if (rel
+ 1 < relend
5390 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
5391 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5395 tls_set
= TLS_EXPLICIT
| TLS_GD
;
5398 tls_set
= TLS_EXPLICIT
| TLS_GD
| TLS_TPRELGD
;
5407 tls_set
= TLS_EXPLICIT
;
5413 expecting_tls_get_addr
= 0;
5417 if ((tls_set
& TLS_EXPLICIT
) == 0)
5419 struct got_entry
*ent
;
5421 /* Adjust got entry for this reloc. */
5425 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
5427 for (; ent
!= NULL
; ent
= ent
->next
)
5428 if (ent
->addend
== rel
->r_addend
5429 && ent
->tls_type
== tls_type
)
5436 /* We managed to get rid of a got entry. */
5437 if (ent
->got
.refcount
> 0)
5438 ent
->got
.refcount
-= 1;
5443 struct ppc_link_hash_entry
* eh
;
5444 struct ppc_dyn_relocs
**pp
;
5445 struct ppc_dyn_relocs
*p
;
5447 /* Adjust dynamic relocs. */
5448 eh
= (struct ppc_link_hash_entry
*) h
;
5449 for (pp
= &eh
->dyn_relocs
;
5454 /* If we got rid of a DTPMOD/DTPREL reloc
5455 pair then we'll lose one or two dyn
5457 if (tls_set
== (TLS_EXPLICIT
| TLS_GD
))
5466 *tls_mask
|= tls_set
;
5467 *tls_mask
&= ~tls_clear
;
5470 if (elf_section_data (sec
)->relocs
!= relstart
)
5475 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5476 != (unsigned char *) locsyms
))
5478 if (!info
->keep_memory
)
5481 elf_tdata (ibfd
)->symtab_hdr
.contents
= (unsigned char *) locsyms
;
5487 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5488 will be called from elflink.h. If elflink.h doesn't call our
5489 finish_dynamic_symbol routine, we'll need to do something about
5490 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5491 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
5493 && ((INFO)->shared \
5494 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5495 && ((H)->dynindx != -1 \
5496 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5498 /* Allocate space in .plt, .got and associated reloc sections for
5502 allocate_dynrelocs (h
, inf
)
5503 struct elf_link_hash_entry
*h
;
5506 struct bfd_link_info
*info
;
5507 struct ppc_link_hash_table
*htab
;
5509 struct ppc_link_hash_entry
*eh
;
5510 struct ppc_dyn_relocs
*p
;
5511 struct got_entry
*gent
;
5513 if (h
->root
.type
== bfd_link_hash_indirect
)
5516 if (h
->root
.type
== bfd_link_hash_warning
)
5517 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5519 info
= (struct bfd_link_info
*) inf
;
5520 htab
= ppc_hash_table (info
);
5522 if (htab
->elf
.dynamic_sections_created
5524 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
, h
))
5526 struct plt_entry
*pent
;
5527 bfd_boolean doneone
= FALSE
;
5528 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
5529 if (pent
->plt
.refcount
> 0)
5531 BFD_ASSERT (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
);
5533 /* If this is the first .plt entry, make room for the special
5536 if (s
->_raw_size
== 0)
5537 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
5539 pent
->plt
.offset
= s
->_raw_size
;
5541 /* Make room for this entry. */
5542 s
->_raw_size
+= PLT_ENTRY_SIZE
;
5544 /* Make room for the .glink code. */
5546 if (s
->_raw_size
== 0)
5547 s
->_raw_size
+= GLINK_CALL_STUB_SIZE
;
5548 /* We need bigger stubs past index 32767. */
5549 if (s
->_raw_size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
5551 s
->_raw_size
+= 2*4;
5553 /* We also need to make an entry in the .rela.plt section. */
5555 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
5559 pent
->plt
.offset
= (bfd_vma
) -1;
5562 h
->plt
.plist
= NULL
;
5563 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5568 h
->plt
.plist
= NULL
;
5569 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5572 eh
= (struct ppc_link_hash_entry
*) h
;
5573 /* Run through the TLS GD got entries first if we're changing them
5575 if ((eh
->tls_mask
& TLS_TPRELGD
) != 0)
5576 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5577 if (gent
->got
.refcount
> 0
5578 && (gent
->tls_type
& TLS_GD
) != 0)
5580 /* This was a GD entry that has been converted to TPREL. If
5581 there happens to be a TPREL entry we can use that one. */
5582 struct got_entry
*ent
;
5583 for (ent
= h
->got
.glist
; ent
!= NULL
; ent
= ent
->next
)
5584 if (ent
->got
.refcount
> 0
5585 && (ent
->tls_type
& TLS_TPREL
) != 0
5586 && ent
->addend
== gent
->addend
)
5588 gent
->got
.refcount
= 0;
5592 /* If not, then we'll be using our own TPREL entry. */
5593 if (gent
->got
.refcount
!= 0)
5594 gent
->tls_type
= TLS_TLS
| TLS_TPREL
;
5597 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5598 if (gent
->got
.refcount
> 0)
5602 /* Make sure this symbol is output as a dynamic symbol.
5603 Undefined weak syms won't yet be marked as dynamic,
5604 nor will all TLS symbols. */
5605 if (h
->dynindx
== -1
5606 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5608 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5612 if ((gent
->tls_type
& TLS_LD
) != 0)
5614 gent
->got
.offset
= htab
->tlsld_got
.offset
;
5619 gent
->got
.offset
= s
->_raw_size
;
5620 s
->_raw_size
+= (gent
->tls_type
& eh
->tls_mask
& TLS_GD
) ? 16 : 8;
5621 dyn
= htab
->elf
.dynamic_sections_created
;
5622 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
))
5623 htab
->srelgot
->_raw_size
5624 += (gent
->tls_type
& eh
->tls_mask
& TLS_GD
5625 ? 2 * sizeof (Elf64_External_Rela
)
5626 : sizeof (Elf64_External_Rela
));
5629 gent
->got
.offset
= (bfd_vma
) -1;
5631 if (eh
->dyn_relocs
== NULL
)
5634 /* In the shared -Bsymbolic case, discard space allocated for
5635 dynamic pc-relative relocs against symbols which turn out to be
5636 defined in regular objects. For the normal shared case, discard
5637 space for relocs that have become local due to symbol visibility
5642 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) != 0
5643 && ((h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
5646 struct ppc_dyn_relocs
**pp
;
5648 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
5650 p
->count
-= p
->pc_count
;
5661 /* For the non-shared case, discard space for relocs against
5662 symbols which turn out to need copy relocs or are not
5665 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
5666 && (((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
5667 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
5668 || (htab
->elf
.dynamic_sections_created
5669 && (h
->root
.type
== bfd_link_hash_undefweak
5670 || h
->root
.type
== bfd_link_hash_undefined
))))
5672 /* Make sure this symbol is output as a dynamic symbol.
5673 Undefined weak syms won't yet be marked as dynamic. */
5674 if (h
->dynindx
== -1
5675 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5677 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5681 /* If that succeeded, we know we'll be keeping all the
5683 if (h
->dynindx
!= -1)
5687 eh
->dyn_relocs
= NULL
;
5692 /* Finally, allocate space. */
5693 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5695 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
5696 sreloc
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5702 /* Find any dynamic relocs that apply to read-only sections. */
5705 readonly_dynrelocs (h
, inf
)
5706 struct elf_link_hash_entry
*h
;
5709 struct ppc_link_hash_entry
*eh
;
5710 struct ppc_dyn_relocs
*p
;
5712 if (h
->root
.type
== bfd_link_hash_warning
)
5713 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5715 eh
= (struct ppc_link_hash_entry
*) h
;
5716 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5718 asection
*s
= p
->sec
->output_section
;
5720 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
5722 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
5724 info
->flags
|= DF_TEXTREL
;
5726 /* Not an error, just cut short the traversal. */
5733 /* Set the sizes of the dynamic sections. */
5736 ppc64_elf_size_dynamic_sections (output_bfd
, info
)
5737 bfd
*output_bfd ATTRIBUTE_UNUSED
;
5738 struct bfd_link_info
*info
;
5740 struct ppc_link_hash_table
*htab
;
5746 htab
= ppc_hash_table (info
);
5747 dynobj
= htab
->elf
.dynobj
;
5751 if (htab
->elf
.dynamic_sections_created
)
5753 /* Set the contents of the .interp section to the interpreter. */
5756 s
= bfd_get_section_by_name (dynobj
, ".interp");
5759 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
5760 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
5764 if (htab
->tlsld_got
.refcount
> 0)
5766 htab
->tlsld_got
.offset
= htab
->sgot
->_raw_size
;
5767 htab
->sgot
->_raw_size
+= 16;
5769 htab
->srelgot
->_raw_size
+= sizeof (Elf64_External_Rela
);
5772 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
5774 /* Set up .got offsets for local syms, and space for local dynamic
5776 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5778 struct got_entry
**lgot_ents
;
5779 struct got_entry
**end_lgot_ents
;
5781 bfd_size_type locsymcount
;
5782 Elf_Internal_Shdr
*symtab_hdr
;
5785 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
5788 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
5790 struct ppc_dyn_relocs
*p
;
5792 for (p
= *((struct ppc_dyn_relocs
**)
5793 &elf_section_data (s
)->local_dynrel
);
5797 if (!bfd_is_abs_section (p
->sec
)
5798 && bfd_is_abs_section (p
->sec
->output_section
))
5800 /* Input section has been discarded, either because
5801 it is a copy of a linkonce section or due to
5802 linker script /DISCARD/, so we'll be discarding
5805 else if (p
->count
!= 0)
5807 srel
= elf_section_data (p
->sec
)->sreloc
;
5808 srel
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5809 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
5810 info
->flags
|= DF_TEXTREL
;
5815 lgot_ents
= elf_local_got_ents (ibfd
);
5819 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
5820 locsymcount
= symtab_hdr
->sh_info
;
5821 end_lgot_ents
= lgot_ents
+ locsymcount
;
5822 lgot_masks
= (char *) end_lgot_ents
;
5824 srel
= htab
->srelgot
;
5825 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
5827 struct got_entry
*ent
;
5829 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
5830 if (ent
->got
.refcount
> 0)
5832 if ((ent
->tls_type
& *lgot_masks
& TLS_LD
) != 0)
5834 if (htab
->tlsld_got
.offset
== (bfd_vma
) -1)
5836 htab
->tlsld_got
.offset
= s
->_raw_size
;
5839 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5841 ent
->got
.offset
= htab
->tlsld_got
.offset
;
5845 ent
->got
.offset
= s
->_raw_size
;
5846 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
5850 srel
->_raw_size
+= 2 * sizeof (Elf64_External_Rela
);
5856 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5861 ent
->got
.offset
= (bfd_vma
) -1;
5865 /* Allocate global sym .plt and .got entries, and space for global
5866 sym dynamic relocs. */
5867 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
5869 /* We now have determined the sizes of the various dynamic sections.
5870 Allocate memory for them. */
5872 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
5874 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
5877 /* Reset _cooked_size since prelim layout will set it wrongly,
5878 and a non-zero _cooked_size sticks. */
5879 s
->_cooked_size
= 0;
5881 if (s
== htab
->sbrlt
|| s
== htab
->srelbrlt
)
5882 /* These haven't been allocated yet; don't strip. */
5884 else if (s
== htab
->splt
5886 || s
== htab
->sglink
)
5888 /* Strip this section if we don't need it; see the
5891 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
5893 if (s
->_raw_size
== 0)
5895 /* If we don't need this section, strip it from the
5896 output file. This is mostly to handle .rela.bss and
5897 .rela.plt. We must create both sections in
5898 create_dynamic_sections, because they must be created
5899 before the linker maps input sections to output
5900 sections. The linker does that before
5901 adjust_dynamic_symbol is called, and it is that
5902 function which decides whether anything needs to go
5903 into these sections. */
5907 if (s
!= htab
->srelplt
)
5910 /* We use the reloc_count field as a counter if we need
5911 to copy relocs into the output file. */
5917 /* It's not one of our sections, so don't allocate space. */
5921 if (s
->_raw_size
== 0)
5923 _bfd_strip_section_from_output (info
, s
);
5927 /* .plt is in the bss section. We don't initialise it. */
5928 if ((s
->flags
& SEC_LOAD
) == 0)
5931 /* Allocate memory for the section contents. We use bfd_zalloc
5932 here in case unused entries are not reclaimed before the
5933 section's contents are written out. This should not happen,
5934 but this way if it does we get a R_PPC64_NONE reloc in .rela
5935 sections instead of garbage.
5936 We also rely on the section contents being zero when writing
5938 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
5939 if (s
->contents
== NULL
)
5943 if (htab
->elf
.dynamic_sections_created
)
5945 /* Add some entries to the .dynamic section. We fill in the
5946 values later, in ppc64_elf_finish_dynamic_sections, but we
5947 must add the entries now so that we get the correct size for
5948 the .dynamic section. The DT_DEBUG entry is filled in by the
5949 dynamic linker and used by the debugger. */
5950 #define add_dynamic_entry(TAG, VAL) \
5951 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5955 if (!add_dynamic_entry (DT_DEBUG
, 0))
5959 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
5961 if (!add_dynamic_entry (DT_PLTGOT
, 0)
5962 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
5963 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
5964 || !add_dynamic_entry (DT_JMPREL
, 0)
5965 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
5971 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
5972 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
5978 if (!add_dynamic_entry (DT_RELA
, 0)
5979 || !add_dynamic_entry (DT_RELASZ
, 0)
5980 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
5983 /* If any dynamic relocs apply to a read-only section,
5984 then we need a DT_TEXTREL entry. */
5985 if ((info
->flags
& DF_TEXTREL
) == 0)
5986 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
5989 if ((info
->flags
& DF_TEXTREL
) != 0)
5991 if (!add_dynamic_entry (DT_TEXTREL
, 0))
5996 #undef add_dynamic_entry
6001 /* Determine the type of stub needed, if any, for a call. */
6003 static INLINE
enum ppc_stub_type
6004 ppc_type_of_stub (input_sec
, rel
, hash
, destination
)
6005 asection
*input_sec
;
6006 const Elf_Internal_Rela
*rel
;
6007 struct ppc_link_hash_entry
**hash
;
6008 bfd_vma destination
;
6010 struct ppc_link_hash_entry
*h
= *hash
;
6012 bfd_vma branch_offset
;
6013 bfd_vma max_branch_offset
;
6014 unsigned int r_type
;
6019 && h
->oh
->dynindx
!= -1)
6021 struct plt_entry
*ent
;
6022 for (ent
= h
->oh
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6023 if (ent
->addend
== rel
->r_addend
6024 && ent
->plt
.offset
!= (bfd_vma
) -1)
6026 *hash
= (struct ppc_link_hash_entry
*) h
->oh
;
6027 return ppc_stub_plt_call
;
6031 if (h
->elf
.root
.type
== bfd_link_hash_undefweak
6032 || h
->elf
.root
.type
== bfd_link_hash_undefined
)
6033 return ppc_stub_none
;
6036 /* Determine where the call point is. */
6037 location
= (input_sec
->output_offset
6038 + input_sec
->output_section
->vma
6041 branch_offset
= destination
- location
;
6042 r_type
= ELF64_R_TYPE (rel
->r_info
);
6044 /* Determine if a long branch stub is needed. */
6045 max_branch_offset
= 1 << 25;
6046 if (r_type
!= (unsigned int) R_PPC64_REL24
)
6047 max_branch_offset
= 1 << 15;
6049 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
)
6050 /* We need a stub. Figure out whether a long_branch or plt_branch
6052 return ppc_stub_long_branch
;
6054 return ppc_stub_none
;
6057 /* Build a .plt call stub. */
6060 build_plt_stub (obfd
, p
, offset
, glink
)
6066 #define PPC_LO(v) ((v) & 0xffff)
6067 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6068 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6071 bfd_put_32 (obfd
, LD_R2_40R1
, p
), p
+= 4;
6072 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
6074 bfd_put_32 (obfd
, STD_R2_40R1
, p
), p
+= 4;
6075 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6076 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6077 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6079 bfd_put_32 (obfd
, LD_R2_0R12
| PPC_LO (offset
), p
), p
+= 4;
6080 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6081 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6083 bfd_put_32 (obfd
, MTCTR_R11
, p
), p
+= 4;
6084 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6085 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
6090 ppc_build_one_stub (gen_entry
, in_arg
)
6091 struct bfd_hash_entry
*gen_entry
;
6094 struct ppc_stub_hash_entry
*stub_entry
;
6095 struct ppc_branch_hash_entry
*br_entry
;
6096 struct bfd_link_info
*info
;
6097 struct ppc_link_hash_table
*htab
;
6103 struct plt_entry
*ent
;
6107 /* Massage our args to the form they really have. */
6108 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6109 info
= (struct bfd_link_info
*) in_arg
;
6111 htab
= ppc_hash_table (info
);
6112 stub_sec
= stub_entry
->stub_sec
;
6114 /* Make a note of the offset within the stubs for this entry. */
6115 stub_entry
->stub_offset
= stub_sec
->_cooked_size
;
6116 loc
= stub_sec
->contents
+ stub_entry
->stub_offset
;
6118 stub_bfd
= stub_sec
->owner
;
6120 switch (stub_entry
->stub_type
)
6122 case ppc_stub_long_branch
:
6123 /* Branches are relative. This is where we are going to. */
6124 off
= (stub_entry
->target_value
6125 + stub_entry
->target_section
->output_offset
6126 + stub_entry
->target_section
->output_section
->vma
);
6128 /* And this is where we are coming from. */
6129 off
-= (stub_entry
->stub_offset
6130 + stub_sec
->output_offset
6131 + stub_sec
->output_section
->vma
);
6133 BFD_ASSERT (off
+ (1 << 25) < (bfd_vma
) (1 << 26));
6135 bfd_put_32 (stub_bfd
, (bfd_vma
) B_DOT
| (off
& 0x3fffffc), loc
);
6139 case ppc_stub_plt_branch
:
6140 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6141 stub_entry
->root
.string
+ 9,
6143 if (br_entry
== NULL
)
6145 (*_bfd_error_handler
) (_("can't find branch stub `%s'"),
6146 stub_entry
->root
.string
+ 9);
6147 htab
->stub_error
= TRUE
;
6151 off
= (stub_entry
->target_value
6152 + stub_entry
->target_section
->output_offset
6153 + stub_entry
->target_section
->output_section
->vma
);
6155 bfd_put_64 (htab
->sbrlt
->owner
, off
,
6156 htab
->sbrlt
->contents
+ br_entry
->offset
);
6160 /* Create a reloc for the branch lookup table entry. */
6161 Elf_Internal_Rela rela
;
6164 rela
.r_offset
= (br_entry
->offset
6165 + htab
->sbrlt
->output_offset
6166 + htab
->sbrlt
->output_section
->vma
);
6167 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
6168 rela
.r_addend
= off
;
6170 loc
= htab
->srelbrlt
->contents
;
6171 loc
+= htab
->srelbrlt
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6172 bfd_elf64_swap_reloca_out (htab
->srelbrlt
->owner
, &rela
, loc
);
6175 off
= (br_entry
->offset
6176 + htab
->sbrlt
->output_offset
6177 + htab
->sbrlt
->output_section
->vma
6178 - elf_gp (htab
->sbrlt
->output_section
->owner
)
6181 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6183 (*_bfd_error_handler
)
6184 (_("linkage table error against `%s'"),
6185 stub_entry
->root
.string
);
6186 bfd_set_error (bfd_error_bad_value
);
6187 htab
->stub_error
= TRUE
;
6192 bfd_put_32 (stub_bfd
, (bfd_vma
) ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6193 bfd_put_32 (stub_bfd
, (bfd_vma
) LD_R11_0R12
| PPC_LO (indx
), loc
+ 4);
6194 bfd_put_32 (stub_bfd
, (bfd_vma
) MTCTR_R11
, loc
+ 8);
6195 bfd_put_32 (stub_bfd
, (bfd_vma
) BCTR
, loc
+ 12);
6199 case ppc_stub_plt_call
:
6200 /* Do the best we can for shared libraries built without
6201 exporting ".foo" for each "foo". This can happen when symbol
6202 versioning scripts strip all bar a subset of symbols. */
6203 if (stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defined
6204 && stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defweak
)
6206 /* Point the symbol at the stub. There may be multiple stubs,
6207 we don't really care; The main thing is to make this sym
6208 defined somewhere. */
6209 stub_entry
->h
->oh
->root
.type
= bfd_link_hash_defined
;
6210 stub_entry
->h
->oh
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6211 stub_entry
->h
->oh
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6214 /* Now build the stub. */
6216 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6217 if (ent
->addend
== stub_entry
->addend
)
6219 off
= ent
->plt
.offset
;
6222 if (off
>= (bfd_vma
) -2)
6225 off
&= ~ (bfd_vma
) 1;
6226 off
+= (htab
->splt
->output_offset
6227 + htab
->splt
->output_section
->vma
6228 - elf_gp (htab
->splt
->output_section
->owner
)
6231 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6233 (*_bfd_error_handler
)
6234 (_("linkage table error against `%s'"),
6235 stub_entry
->h
->elf
.root
.root
.string
);
6236 bfd_set_error (bfd_error_bad_value
);
6237 htab
->stub_error
= TRUE
;
6241 p
= build_plt_stub (stub_bfd
, loc
, (int) off
, 0);
6250 stub_sec
->_cooked_size
+= size
;
6254 /* As above, but don't actually build the stub. Just bump offset so
6255 we know stub section sizes, and select plt_branch stubs where
6256 long_branch stubs won't do. */
6259 ppc_size_one_stub (gen_entry
, in_arg
)
6260 struct bfd_hash_entry
*gen_entry
;
6263 struct ppc_stub_hash_entry
*stub_entry
;
6264 struct ppc_link_hash_table
*htab
;
6268 /* Massage our args to the form they really have. */
6269 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6270 htab
= (struct ppc_link_hash_table
*) in_arg
;
6272 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
6274 struct plt_entry
*ent
;
6275 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6276 if (ent
->addend
== stub_entry
->addend
)
6278 off
= ent
->plt
.offset
& ~(bfd_vma
) 1;
6283 off
+= (htab
->splt
->output_offset
6284 + htab
->splt
->output_section
->vma
6285 - elf_gp (htab
->splt
->output_section
->owner
)
6289 if (PPC_HA ((int) off
+ 16) != PPC_HA ((int) off
))
6294 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6295 stub_entry
->stub_type
= ppc_stub_long_branch
;
6298 off
= (stub_entry
->target_value
6299 + stub_entry
->target_section
->output_offset
6300 + stub_entry
->target_section
->output_section
->vma
);
6301 off
-= (stub_entry
->stub_sec
->_raw_size
6302 + stub_entry
->stub_sec
->output_offset
6303 + stub_entry
->stub_sec
->output_section
->vma
);
6305 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
6307 struct ppc_branch_hash_entry
*br_entry
;
6309 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6310 stub_entry
->root
.string
+ 9,
6312 if (br_entry
== NULL
)
6314 (*_bfd_error_handler
) (_("can't build branch stub `%s'"),
6315 stub_entry
->root
.string
+ 9);
6316 htab
->stub_error
= TRUE
;
6320 if (br_entry
->iter
!= htab
->stub_iteration
)
6322 br_entry
->iter
= htab
->stub_iteration
;
6323 br_entry
->offset
= htab
->sbrlt
->_raw_size
;
6324 htab
->sbrlt
->_raw_size
+= 8;
6326 stub_entry
->stub_type
= ppc_stub_plt_branch
;
6331 stub_entry
->stub_sec
->_raw_size
+= size
;
6335 /* Set up various things so that we can make a list of input sections
6336 for each output section included in the link. Returns -1 on error,
6337 0 when no stubs will be needed, and 1 on success. */
6340 ppc64_elf_setup_section_lists (output_bfd
, info
)
6342 struct bfd_link_info
*info
;
6345 int top_id
, top_index
;
6347 asection
**input_list
, **list
;
6349 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6351 if (htab
->elf
.root
.creator
->flavour
!= bfd_target_elf_flavour
6352 || htab
->sbrlt
== NULL
)
6355 /* Find the top input section id. */
6356 for (input_bfd
= info
->input_bfds
, top_id
= 0;
6358 input_bfd
= input_bfd
->link_next
)
6360 for (section
= input_bfd
->sections
;
6362 section
= section
->next
)
6364 if (top_id
< section
->id
)
6365 top_id
= section
->id
;
6369 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
6370 htab
->stub_group
= (struct map_stub
*) bfd_zmalloc (amt
);
6371 if (htab
->stub_group
== NULL
)
6374 /* We can't use output_bfd->section_count here to find the top output
6375 section index as some sections may have been removed, and
6376 _bfd_strip_section_from_output doesn't renumber the indices. */
6377 for (section
= output_bfd
->sections
, top_index
= 0;
6379 section
= section
->next
)
6381 if (top_index
< section
->index
)
6382 top_index
= section
->index
;
6385 htab
->top_index
= top_index
;
6386 amt
= sizeof (asection
*) * (top_index
+ 1);
6387 input_list
= (asection
**) bfd_malloc (amt
);
6388 htab
->input_list
= input_list
;
6389 if (input_list
== NULL
)
6392 /* For sections we aren't interested in, mark their entries with a
6393 value we can check later. */
6394 list
= input_list
+ top_index
;
6396 *list
= bfd_abs_section_ptr
;
6397 while (list
-- != input_list
);
6399 for (section
= output_bfd
->sections
;
6401 section
= section
->next
)
6403 if ((section
->flags
& SEC_CODE
) != 0)
6404 input_list
[section
->index
] = NULL
;
6410 /* The linker repeatedly calls this function for each input section,
6411 in the order that input sections are linked into output sections.
6412 Build lists of input sections to determine groupings between which
6413 we may insert linker stubs. */
6416 ppc64_elf_next_input_section (info
, isec
)
6417 struct bfd_link_info
*info
;
6420 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6422 if (isec
->output_section
->index
<= htab
->top_index
)
6424 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
6425 if (*list
!= bfd_abs_section_ptr
)
6427 /* Steal the link_sec pointer for our list. */
6428 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6429 /* This happens to make the list in reverse order,
6430 which is what we want. */
6431 PREV_SEC (isec
) = *list
;
6437 /* See whether we can group stub sections together. Grouping stub
6438 sections may result in fewer stubs. More importantly, we need to
6439 put all .init* and .fini* stubs at the beginning of the .init or
6440 .fini output sections respectively, because glibc splits the
6441 _init and _fini functions into multiple parts. Putting a stub in
6442 the middle of a function is not a good idea. */
6445 group_sections (htab
, stub_group_size
, stubs_always_before_branch
)
6446 struct ppc_link_hash_table
*htab
;
6447 bfd_size_type stub_group_size
;
6448 bfd_boolean stubs_always_before_branch
;
6450 asection
**list
= htab
->input_list
+ htab
->top_index
;
6453 asection
*tail
= *list
;
6454 if (tail
== bfd_abs_section_ptr
)
6456 while (tail
!= NULL
)
6460 bfd_size_type total
;
6463 if (tail
->_cooked_size
)
6464 total
= tail
->_cooked_size
;
6466 total
= tail
->_raw_size
;
6467 while ((prev
= PREV_SEC (curr
)) != NULL
6468 && ((total
+= curr
->output_offset
- prev
->output_offset
)
6472 /* OK, the size from the start of CURR to the end is less
6473 than stub_group_size and thus can be handled by one stub
6474 section. (or the tail section is itself larger than
6475 stub_group_size, in which case we may be toast.) We
6476 should really be keeping track of the total size of stubs
6477 added here, as stubs contribute to the final output
6478 section size. That's a little tricky, and this way will
6479 only break if stubs added make the total size more than
6480 2^25, ie. for the default stub_group_size, if stubs total
6481 more than 2834432 bytes, or over 100000 plt call stubs. */
6484 prev
= PREV_SEC (tail
);
6485 /* Set up this stub group. */
6486 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6488 while (tail
!= curr
&& (tail
= prev
) != NULL
);
6490 /* But wait, there's more! Input sections up to stub_group_size
6491 bytes before the stub section can be handled by it too. */
6492 if (!stubs_always_before_branch
)
6496 && ((total
+= tail
->output_offset
- prev
->output_offset
)
6500 prev
= PREV_SEC (tail
);
6501 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6507 while (list
-- != htab
->input_list
);
6508 free (htab
->input_list
);
6512 /* Determine and set the size of the stub section for a final link.
6514 The basic idea here is to examine all the relocations looking for
6515 PC-relative calls to a target that is unreachable with a "bl"
6519 ppc64_elf_size_stubs (output_bfd
, stub_bfd
, info
, group_size
,
6520 add_stub_section
, layout_sections_again
)
6523 struct bfd_link_info
*info
;
6524 bfd_signed_vma group_size
;
6525 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
6526 void (*layout_sections_again
) PARAMS ((void));
6528 bfd_size_type stub_group_size
;
6529 bfd_boolean stubs_always_before_branch
;
6530 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6532 /* Stash our params away. */
6533 htab
->stub_bfd
= stub_bfd
;
6534 htab
->add_stub_section
= add_stub_section
;
6535 htab
->layout_sections_again
= layout_sections_again
;
6536 stubs_always_before_branch
= group_size
< 0;
6538 stub_group_size
= -group_size
;
6540 stub_group_size
= group_size
;
6541 if (stub_group_size
== 1)
6543 /* Default values. */
6544 stub_group_size
= 30720000;
6545 if (htab
->has_14bit_branch
)
6546 stub_group_size
= 30000;
6549 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
6554 unsigned int bfd_indx
;
6556 bfd_boolean stub_changed
;
6558 htab
->stub_iteration
+= 1;
6559 stub_changed
= FALSE
;
6561 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
6563 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
6565 Elf_Internal_Shdr
*symtab_hdr
;
6567 Elf_Internal_Sym
*local_syms
= NULL
;
6569 /* We'll need the symbol table in a second. */
6570 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6571 if (symtab_hdr
->sh_info
== 0)
6574 /* Walk over each section attached to the input bfd. */
6575 for (section
= input_bfd
->sections
;
6577 section
= section
->next
)
6579 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
6581 /* If there aren't any relocs, then there's nothing more
6583 if ((section
->flags
& SEC_RELOC
) == 0
6584 || section
->reloc_count
== 0)
6587 /* If this section is a link-once section that will be
6588 discarded, then don't create any stubs. */
6589 if (section
->output_section
== NULL
6590 || section
->output_section
->owner
!= output_bfd
)
6593 /* Get the relocs. */
6595 = _bfd_elf64_link_read_relocs (input_bfd
, section
, NULL
,
6596 (Elf_Internal_Rela
*) NULL
,
6598 if (internal_relocs
== NULL
)
6599 goto error_ret_free_local
;
6601 /* Now examine each relocation. */
6602 irela
= internal_relocs
;
6603 irelaend
= irela
+ section
->reloc_count
;
6604 for (; irela
< irelaend
; irela
++)
6606 unsigned int r_type
, r_indx
;
6607 enum ppc_stub_type stub_type
;
6608 struct ppc_stub_hash_entry
*stub_entry
;
6611 bfd_vma destination
;
6612 struct ppc_link_hash_entry
*hash
;
6613 struct elf_link_hash_entry
*h
;
6614 Elf_Internal_Sym
*sym
;
6616 const asection
*id_sec
;
6618 r_type
= ELF64_R_TYPE (irela
->r_info
);
6619 r_indx
= ELF64_R_SYM (irela
->r_info
);
6621 if (r_type
>= (unsigned int) R_PPC64_max
)
6623 bfd_set_error (bfd_error_bad_value
);
6624 goto error_ret_free_internal
;
6627 /* Only look for stubs on branch instructions. */
6628 if (r_type
!= (unsigned int) R_PPC64_REL24
6629 && r_type
!= (unsigned int) R_PPC64_REL14
6630 && r_type
!= (unsigned int) R_PPC64_REL14_BRTAKEN
6631 && r_type
!= (unsigned int) R_PPC64_REL14_BRNTAKEN
)
6634 /* Now determine the call target, its name, value,
6637 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
6639 goto error_ret_free_internal
;
6640 hash
= (struct ppc_link_hash_entry
*) h
;
6644 /* It's a local symbol. */
6645 sym_value
= sym
->st_value
;
6646 destination
= (sym_value
+ irela
->r_addend
6647 + sym_sec
->output_offset
6648 + sym_sec
->output_section
->vma
);
6652 /* It's an external symbol. */
6654 if (hash
->elf
.root
.type
== bfd_link_hash_defined
6655 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
6657 sym_value
= hash
->elf
.root
.u
.def
.value
;
6658 if (sym_sec
->output_section
!= NULL
)
6659 destination
= (sym_value
+ irela
->r_addend
6660 + sym_sec
->output_offset
6661 + sym_sec
->output_section
->vma
);
6663 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
)
6665 else if (hash
->elf
.root
.type
== bfd_link_hash_undefined
)
6669 bfd_set_error (bfd_error_bad_value
);
6670 goto error_ret_free_internal
;
6674 /* Determine what (if any) linker stub is needed. */
6675 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
6677 if (stub_type
== ppc_stub_none
)
6680 /* __tls_get_addr calls might be eliminated. */
6681 if (stub_type
!= ppc_stub_plt_call
6683 && &hash
->elf
== htab
->tls_get_addr
6684 && section
->has_tls_reloc
6685 && irela
!= internal_relocs
)
6690 if (!get_tls_mask (&tls_mask
, &local_syms
,
6691 irela
- 1, input_bfd
))
6692 goto error_ret_free_internal
;
6697 /* Support for grouping stub sections. */
6698 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
6700 /* Get the name of this stub. */
6701 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
6703 goto error_ret_free_internal
;
6705 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
6706 stub_name
, FALSE
, FALSE
);
6707 if (stub_entry
!= NULL
)
6709 /* The proper stub has already been created. */
6714 stub_entry
= ppc_add_stub (stub_name
, section
, htab
);
6715 if (stub_entry
== NULL
)
6718 error_ret_free_internal
:
6719 if (elf_section_data (section
)->relocs
== NULL
)
6720 free (internal_relocs
);
6721 error_ret_free_local
:
6722 if (local_syms
!= NULL
6723 && (symtab_hdr
->contents
6724 != (unsigned char *) local_syms
))
6729 stub_entry
->target_value
= sym_value
;
6730 stub_entry
->target_section
= sym_sec
;
6731 stub_entry
->stub_type
= stub_type
;
6732 stub_entry
->h
= hash
;
6733 stub_entry
->addend
= irela
->r_addend
;
6734 stub_changed
= TRUE
;
6737 /* We're done with the internal relocs, free them. */
6738 if (elf_section_data (section
)->relocs
!= internal_relocs
)
6739 free (internal_relocs
);
6742 if (local_syms
!= NULL
6743 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
6745 if (!info
->keep_memory
)
6748 symtab_hdr
->contents
= (unsigned char *) local_syms
;
6755 /* OK, we've added some stubs. Find out the new size of the
6757 for (stub_sec
= htab
->stub_bfd
->sections
;
6759 stub_sec
= stub_sec
->next
)
6761 stub_sec
->_raw_size
= 0;
6762 stub_sec
->_cooked_size
= 0;
6764 htab
->sbrlt
->_raw_size
= 0;
6765 htab
->sbrlt
->_cooked_size
= 0;
6767 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, htab
);
6769 /* Ask the linker to do its stuff. */
6770 (*htab
->layout_sections_again
) ();
6773 /* It would be nice to strip .branch_lt from the output if the
6774 section is empty, but it's too late. If we strip sections here,
6775 the dynamic symbol table is corrupted since the section symbol
6776 for the stripped section isn't written. */
6781 /* Called after we have determined section placement. If sections
6782 move, we'll be called again. Provide a value for TOCstart. */
6785 ppc64_elf_toc (obfd
)
6791 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6792 order. The TOC starts where the first of these sections starts. */
6793 s
= bfd_get_section_by_name (obfd
, ".got");
6795 s
= bfd_get_section_by_name (obfd
, ".toc");
6797 s
= bfd_get_section_by_name (obfd
, ".tocbss");
6799 s
= bfd_get_section_by_name (obfd
, ".plt");
6802 /* This may happen for
6803 o references to TOC base (SYM@toc / TOC[tc0]) without a
6806 o --gc-sections and empty TOC sections
6808 FIXME: Warn user? */
6810 /* Look for a likely section. We probably won't even be
6812 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6813 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
))
6814 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6817 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6818 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
))
6819 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6822 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6823 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
)) == SEC_ALLOC
)
6826 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6827 if ((s
->flags
& SEC_ALLOC
) == SEC_ALLOC
)
6833 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
6838 /* Build all the stubs associated with the current output file.
6839 The stubs are kept in a hash table attached to the main linker
6840 hash table. This function is called via gldelf64ppc_finish. */
6843 ppc64_elf_build_stubs (info
)
6844 struct bfd_link_info
*info
;
6846 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6851 for (stub_sec
= htab
->stub_bfd
->sections
;
6853 stub_sec
= stub_sec
->next
)
6857 /* Allocate memory to hold the linker stubs. */
6858 size
= stub_sec
->_raw_size
;
6861 stub_sec
->contents
= (bfd_byte
*) bfd_zalloc (htab
->stub_bfd
, size
);
6862 if (stub_sec
->contents
== NULL
)
6865 stub_sec
->_cooked_size
= 0;
6868 if (htab
->splt
!= NULL
)
6872 /* Build the .glink plt call stub. */
6873 plt_r2
= (htab
->splt
->output_offset
6874 + htab
->splt
->output_section
->vma
6875 - elf_gp (htab
->splt
->output_section
->owner
)
6877 p
= htab
->sglink
->contents
;
6878 p
= build_plt_stub (htab
->sglink
->owner
, p
, (int) plt_r2
, 1);
6879 while (p
< htab
->sglink
->contents
+ GLINK_CALL_STUB_SIZE
)
6881 bfd_put_32 (htab
->sglink
->owner
, NOP
, p
);
6885 /* Build the .glink lazy link call stubs. */
6887 while (p
< htab
->sglink
->contents
+ htab
->sglink
->_raw_size
)
6891 bfd_put_32 (htab
->sglink
->owner
, LI_R0_0
| indx
, p
);
6896 bfd_put_32 (htab
->sglink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
6898 bfd_put_32 (htab
->sglink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
), p
);
6901 bfd_put_32 (htab
->sglink
->owner
,
6902 B_DOT
| ((htab
->sglink
->contents
- p
) & 0x3fffffc), p
);
6906 htab
->sglink
->_cooked_size
= p
- htab
->sglink
->contents
;
6909 if (htab
->sbrlt
->_raw_size
!= 0)
6911 htab
->sbrlt
->contents
= (bfd_byte
*) bfd_zalloc (htab
->sbrlt
->owner
,
6912 htab
->sbrlt
->_raw_size
);
6913 if (htab
->sbrlt
->contents
== NULL
)
6917 /* Build the stubs as directed by the stub hash table. */
6918 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
6920 for (stub_sec
= htab
->stub_bfd
->sections
;
6922 stub_sec
= stub_sec
->next
)
6924 if (stub_sec
->_raw_size
!= stub_sec
->_cooked_size
)
6928 if (stub_sec
!= NULL
6929 || htab
->sglink
->_raw_size
!= htab
->sglink
->_cooked_size
)
6931 htab
->stub_error
= TRUE
;
6932 (*_bfd_error_handler
) (_("stubs don't match calculated size"));
6935 return !htab
->stub_error
;
6938 /* The RELOCATE_SECTION function is called by the ELF backend linker
6939 to handle the relocations for a section.
6941 The relocs are always passed as Rela structures; if the section
6942 actually uses Rel structures, the r_addend field will always be
6945 This function is responsible for adjust the section contents as
6946 necessary, and (if using Rela relocs and generating a
6947 relocateable output file) adjusting the reloc addend as
6950 This function does not have to worry about setting the reloc
6951 address or the reloc symbol index.
6953 LOCAL_SYMS is a pointer to the swapped in local symbols.
6955 LOCAL_SECTIONS is an array giving the section in the input file
6956 corresponding to the st_shndx field of each local symbol.
6958 The global hash table entry for the global symbols can be found
6959 via elf_sym_hashes (input_bfd).
6961 When generating relocateable output, this function must handle
6962 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6963 going to be the section symbol corresponding to the output
6964 section, which means that the addend must be adjusted
6968 ppc64_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6969 contents
, relocs
, local_syms
, local_sections
)
6971 struct bfd_link_info
*info
;
6973 asection
*input_section
;
6975 Elf_Internal_Rela
*relocs
;
6976 Elf_Internal_Sym
*local_syms
;
6977 asection
**local_sections
;
6979 struct ppc_link_hash_table
*htab
;
6980 Elf_Internal_Shdr
*symtab_hdr
;
6981 struct elf_link_hash_entry
**sym_hashes
;
6982 Elf_Internal_Rela
*rel
;
6983 Elf_Internal_Rela
*relend
;
6984 Elf_Internal_Rela outrel
;
6986 struct got_entry
**local_got_ents
;
6988 bfd_boolean ret
= TRUE
;
6990 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
6991 bfd_boolean is_power4
= FALSE
;
6993 if (info
->relocateable
)
6996 /* Initialize howto table if needed. */
6997 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
7000 htab
= ppc_hash_table (info
);
7001 if (info
->shared
&& (htab
->tlsld_got
.offset
& 1) == 0)
7003 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
7004 + htab
->sgot
->output_offset
7005 + htab
->tlsld_got
.offset
);
7006 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_DTPMOD64
);
7007 outrel
.r_addend
= 0;
7009 loc
= htab
->srelgot
->contents
;
7010 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf64_External_Rela
);
7011 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7012 htab
->tlsld_got
.offset
|= 1;
7015 local_got_ents
= elf_local_got_ents (input_bfd
);
7016 TOCstart
= elf_gp (output_bfd
);
7017 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
7018 sym_hashes
= elf_sym_hashes (input_bfd
);
7019 is_opd
= ppc64_elf_section_data (input_section
)->opd
.adjust
!= NULL
;
7022 relend
= relocs
+ input_section
->reloc_count
;
7023 for (; rel
< relend
; rel
++)
7025 enum elf_ppc64_reloc_type r_type
;
7027 bfd_reloc_status_type r
;
7028 Elf_Internal_Sym
*sym
;
7030 struct elf_link_hash_entry
*h
;
7031 struct elf_link_hash_entry
*fdh
;
7032 const char *sym_name
;
7033 unsigned long r_symndx
;
7034 char tls_mask
, tls_gd
, tls_type
;
7036 bfd_boolean unresolved_reloc
;
7039 struct ppc_stub_hash_entry
*stub_entry
;
7040 bfd_vma max_br_offset
;
7043 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
7044 r_symndx
= ELF64_R_SYM (rel
->r_info
);
7045 r
= bfd_reloc_other
;
7046 sym
= (Elf_Internal_Sym
*) 0;
7047 sec
= (asection
*) 0;
7048 h
= (struct elf_link_hash_entry
*) 0;
7049 sym_name
= (const char *) 0;
7050 unresolved_reloc
= FALSE
;
7053 if (r_type
== R_PPC64_TOC
)
7055 /* Relocation value is TOC base. Symbol is ignored. */
7056 relocation
= TOCstart
+ TOC_BASE_OFF
;
7058 else if (r_symndx
< symtab_hdr
->sh_info
)
7060 /* It's a local symbol. */
7061 sym
= local_syms
+ r_symndx
;
7062 sec
= local_sections
[r_symndx
];
7063 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
7064 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
7065 if (elf_section_data (sec
) != NULL
)
7067 long *opd_sym_adjust
;
7069 opd_sym_adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
7070 if (opd_sym_adjust
!= NULL
&& sym
->st_value
% 24 == 0)
7071 relocation
+= opd_sym_adjust
[sym
->st_value
/ 24];
7076 /* It's a global symbol. */
7077 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7078 while (h
->root
.type
== bfd_link_hash_indirect
7079 || h
->root
.type
== bfd_link_hash_warning
)
7080 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7081 sym_name
= h
->root
.root
.string
;
7083 if (h
->root
.type
== bfd_link_hash_defined
7084 || h
->root
.type
== bfd_link_hash_defweak
)
7086 sec
= h
->root
.u
.def
.section
;
7087 if (sec
->output_section
== NULL
)
7088 /* Set a flag that will be cleared later if we find a
7089 relocation value for this symbol. output_section
7090 is typically NULL for symbols satisfied by a shared
7092 unresolved_reloc
= TRUE
;
7094 relocation
= (h
->root
.u
.def
.value
7095 + sec
->output_section
->vma
7096 + sec
->output_offset
);
7098 else if (h
->root
.type
== bfd_link_hash_undefweak
)
7100 else if (info
->shared
7101 && (!info
->symbolic
|| info
->allow_shlib_undefined
)
7102 && !info
->no_undefined
7103 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
7107 if (! ((*info
->callbacks
->undefined_symbol
)
7108 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
7109 rel
->r_offset
, (!info
->shared
7110 || info
->no_undefined
7111 || ELF_ST_VISIBILITY (h
->other
)))))
7117 /* TLS optimizations. Replace instruction sequences and relocs
7118 based on information we collected in tls_optimize. We edit
7119 RELOCS so that --emit-relocs will output something sensible
7120 for the final instruction stream. */
7123 if (IS_TLS_RELOC (r_type
))
7126 tls_mask
= ((struct ppc_link_hash_entry
*) h
)->tls_mask
;
7127 else if (local_got_ents
!= NULL
)
7130 lgot_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
7131 tls_mask
= lgot_masks
[r_symndx
];
7135 /* Ensure reloc mapping code below stays sane. */
7136 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
7137 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
7138 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
7139 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
7140 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
7141 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
7142 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
7143 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
7144 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
7145 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
7153 case R_PPC64_TOC16_LO
:
7154 case R_PPC64_TOC16_DS
:
7155 case R_PPC64_TOC16_LO_DS
:
7157 /* Check for toc tls entries. */
7161 retval
= get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
);
7167 tls_mask
= *toc_tls
;
7168 if (r_type
== R_PPC64_TOC16_DS
7169 || r_type
== R_PPC64_TOC16_LO_DS
)
7173 /* If we found a GD reloc pair, then we might be
7174 doing a GD->IE transition. */
7177 tls_gd
= TLS_TPRELGD
;
7178 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7179 goto tls_get_addr_check
;
7181 else if (retval
== 3)
7183 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7184 goto tls_get_addr_check
;
7191 case R_PPC64_GOT_TPREL16_DS
:
7192 case R_PPC64_GOT_TPREL16_LO_DS
:
7195 && (tls_mask
& TLS_TPREL
) == 0)
7198 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
7200 insn
|= 0x3c0d0000; /* addis 0,13,0 */
7201 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
7202 r_type
= R_PPC64_TPREL16_HA
;
7203 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7210 /* Check for toc tls entries. */
7213 if (!get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
))
7217 tls_mask
= *toc_tls
;
7220 && (tls_mask
& TLS_TPREL
) == 0)
7223 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7224 if ((insn
& ((31 << 26) | (31 << 11)))
7225 == ((31 << 26) | (13 << 11)))
7226 rtra
= insn
& ((1 << 26) - (1 << 16));
7227 else if ((insn
& ((31 << 26) | (31 << 16)))
7228 == ((31 << 26) | (13 << 16)))
7229 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
7232 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
7235 else if ((insn
& (31 << 1)) == 23 << 1
7236 && ((insn
& (31 << 6)) < 14 << 6
7237 || ((insn
& (31 << 6)) >= 16 << 6
7238 && (insn
& (31 << 6)) < 24 << 6)))
7239 /* load and store indexed -> dform. */
7240 insn
= (32 | ((insn
>> 6) & 31)) << 26;
7241 else if ((insn
& (31 << 1)) == 21 << 1
7242 && (insn
& (0x1a << 6)) == 0)
7243 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7244 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
7245 | ((insn
>> 6) & 1));
7246 else if ((insn
& (31 << 1)) == 21 << 1
7247 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
7249 insn
= (58 << 26) | 2;
7253 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7254 r_type
= R_PPC64_TPREL16_LO
;
7255 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7256 /* Was PPC64_TLS which sits on insn boundary, now
7257 PPC64_TPREL16_LO which is at insn+2. */
7262 case R_PPC64_GOT_TLSGD16_HI
:
7263 case R_PPC64_GOT_TLSGD16_HA
:
7264 tls_gd
= TLS_TPRELGD
;
7265 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7269 case R_PPC64_GOT_TLSLD16_HI
:
7270 case R_PPC64_GOT_TLSLD16_HA
:
7271 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7274 if ((tls_mask
& tls_gd
) != 0)
7275 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7276 + R_PPC64_GOT_TPREL16_DS
);
7279 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7281 r_type
= R_PPC64_NONE
;
7283 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7287 case R_PPC64_GOT_TLSGD16
:
7288 case R_PPC64_GOT_TLSGD16_LO
:
7289 tls_gd
= TLS_TPRELGD
;
7290 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7291 goto tls_get_addr_check
;
7294 case R_PPC64_GOT_TLSLD16
:
7295 case R_PPC64_GOT_TLSLD16_LO
:
7296 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7299 if (rel
+ 1 < relend
)
7301 enum elf_ppc64_reloc_type r_type2
;
7302 unsigned long r_symndx2
;
7303 struct elf_link_hash_entry
*h2
;
7304 bfd_vma insn1
, insn2
, insn3
;
7307 /* The next instruction should be a call to
7308 __tls_get_addr. Peek at the reloc to be sure. */
7310 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
[1].r_info
);
7311 r_symndx2
= ELF64_R_SYM (rel
[1].r_info
);
7312 if (r_symndx2
< symtab_hdr
->sh_info
7313 || (r_type2
!= R_PPC64_REL14
7314 && r_type2
!= R_PPC64_REL14_BRTAKEN
7315 && r_type2
!= R_PPC64_REL14_BRNTAKEN
7316 && r_type2
!= R_PPC64_REL24
))
7319 h2
= sym_hashes
[r_symndx2
- symtab_hdr
->sh_info
];
7320 while (h2
->root
.type
== bfd_link_hash_indirect
7321 || h2
->root
.type
== bfd_link_hash_warning
)
7322 h2
= (struct elf_link_hash_entry
*) h2
->root
.u
.i
.link
;
7323 if (h2
== NULL
|| h2
!= htab
->tls_get_addr
)
7326 /* OK, it checks out. Replace the call. */
7327 offset
= rel
[1].r_offset
;
7328 insn1
= bfd_get_32 (output_bfd
,
7329 contents
+ rel
->r_offset
- 2);
7330 insn3
= bfd_get_32 (output_bfd
,
7331 contents
+ offset
+ 4);
7332 if ((tls_mask
& tls_gd
) != 0)
7335 insn1
&= (1 << 26) - (1 << 2);
7336 insn1
|= 58 << 26; /* ld */
7337 insn2
= 0x7c636a14; /* add 3,3,13 */
7338 rel
[1].r_info
= ELF64_R_INFO (r_symndx2
, R_PPC64_NONE
);
7339 if ((tls_mask
& TLS_EXPLICIT
) == 0)
7340 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7341 + R_PPC64_GOT_TPREL16_DS
);
7343 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
7344 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7349 insn1
= 0x3c6d0000; /* addis 3,13,0 */
7350 insn2
= 0x38630000; /* addi 3,3,0 */
7353 /* Was an LD reloc. */
7355 rel
->r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7356 rel
[1].r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7358 r_type
= R_PPC64_TPREL16_HA
;
7359 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7360 rel
[1].r_info
= ELF64_R_INFO (r_symndx
,
7361 R_PPC64_TPREL16_LO
);
7362 rel
[1].r_offset
+= 2;
7365 || insn3
== CROR_151515
|| insn3
== CROR_313131
)
7369 rel
[1].r_offset
+= 4;
7371 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
->r_offset
- 2);
7372 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7373 bfd_put_32 (output_bfd
, insn3
, contents
+ offset
+ 4);
7376 /* We changed the symbol on an LD reloc. Start over
7377 in order to get h, sym, sec etc. right. */
7385 case R_PPC64_DTPMOD64
:
7386 if (rel
+ 1 < relend
7387 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
7388 && rel
[1].r_offset
== rel
->r_offset
+ 8)
7390 if ((tls_mask
& TLS_GD
) == 0)
7392 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_NONE
);
7393 if ((tls_mask
& TLS_TPRELGD
) != 0)
7394 r_type
= R_PPC64_TPREL64
;
7397 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7398 contents
+ rel
->r_offset
);
7399 r_type
= R_PPC64_NONE
;
7401 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7406 if ((tls_mask
& TLS_LD
) == 0)
7408 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7409 contents
+ rel
->r_offset
);
7410 r_type
= R_PPC64_NONE
;
7411 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7416 case R_PPC64_TPREL64
:
7417 if ((tls_mask
& TLS_TPREL
) == 0)
7419 r_type
= R_PPC64_NONE
;
7420 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7425 /* Handle other relocations that tweak non-addend part of insn. */
7432 /* Branch taken prediction relocations. */
7433 case R_PPC64_ADDR14_BRTAKEN
:
7434 case R_PPC64_REL14_BRTAKEN
:
7435 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7438 /* Branch not taken prediction relocations. */
7439 case R_PPC64_ADDR14_BRNTAKEN
:
7440 case R_PPC64_REL14_BRNTAKEN
:
7441 insn
|= bfd_get_32 (output_bfd
,
7442 contents
+ rel
->r_offset
) & ~(0x01 << 21);
7445 /* Set 'a' bit. This is 0b00010 in BO field for branch
7446 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7447 for branch on CTR insns (BO == 1a00t or 1a01t). */
7448 if ((insn
& (0x14 << 21)) == (0x04 << 21))
7450 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
7457 from
= (rel
->r_offset
7458 + input_section
->output_offset
7459 + input_section
->output_section
->vma
);
7461 /* Invert 'y' bit if not the default. */
7462 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
7466 bfd_put_32 (output_bfd
, (bfd_vma
) insn
, contents
+ rel
->r_offset
);
7470 /* A REL24 branching to a linkage function is followed by a
7471 nop. We replace the nop with a ld in order to restore
7472 the TOC base pointer. Only calls to shared objects need
7473 to alter the TOC base. These are recognized by their
7474 need for a PLT entry. */
7476 && (fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
) != NULL
7477 && fdh
->plt
.plist
!= NULL
7478 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
,
7479 rel
, htab
)) != NULL
)
7481 bfd_boolean can_plt_call
= 0;
7483 if (rel
->r_offset
+ 8 <= input_section
->_cooked_size
)
7485 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
7487 || insn
== CROR_151515
|| insn
== CROR_313131
)
7489 bfd_put_32 (input_bfd
, (bfd_vma
) LD_R2_40R1
,
7490 contents
+ rel
->r_offset
+ 4);
7497 /* If this is a plain branch rather than a branch
7498 and link, don't require a nop. */
7499 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7500 if ((insn
& 1) == 0)
7506 relocation
= (stub_entry
->stub_offset
7507 + stub_entry
->stub_sec
->output_offset
7508 + stub_entry
->stub_sec
->output_section
->vma
);
7509 unresolved_reloc
= FALSE
;
7514 && h
->root
.type
== bfd_link_hash_undefweak
7516 && rel
->r_addend
== 0)
7518 /* Tweak calls to undefined weak functions to point at a
7519 blr. We can thus call a weak function without first
7520 checking whether the function is defined. We have a
7521 blr at the end of .sfpr. */
7522 BFD_ASSERT (htab
->sfpr
->_raw_size
!= 0);
7523 relocation
= (htab
->sfpr
->_raw_size
- 4
7524 + htab
->sfpr
->output_offset
7525 + htab
->sfpr
->output_section
->vma
);
7526 from
= (rel
->r_offset
7527 + input_section
->output_offset
7528 + input_section
->output_section
->vma
);
7530 /* But let's not be silly about it. If the blr isn't in
7531 reach, just go to the next instruction. */
7532 if (relocation
- from
+ (1 << 25) >= (1 << 26)
7533 || htab
->sfpr
->_raw_size
== 0)
7534 relocation
= from
+ 4;
7541 addend
= rel
->r_addend
;
7545 (*_bfd_error_handler
)
7546 (_("%s: unknown relocation type %d for symbol %s"),
7547 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
7549 bfd_set_error (bfd_error_bad_value
);
7555 case R_PPC64_GNU_VTINHERIT
:
7556 case R_PPC64_GNU_VTENTRY
:
7559 /* GOT16 relocations. Like an ADDR16 using the symbol's
7560 address in the GOT as relocation value instead of the
7561 symbol's value itself. Also, create a GOT entry for the
7562 symbol and put the symbol value there. */
7563 case R_PPC64_GOT_TLSGD16
:
7564 case R_PPC64_GOT_TLSGD16_LO
:
7565 case R_PPC64_GOT_TLSGD16_HI
:
7566 case R_PPC64_GOT_TLSGD16_HA
:
7567 tls_type
= TLS_TLS
| TLS_GD
;
7570 case R_PPC64_GOT_TLSLD16
:
7571 case R_PPC64_GOT_TLSLD16_LO
:
7572 case R_PPC64_GOT_TLSLD16_HI
:
7573 case R_PPC64_GOT_TLSLD16_HA
:
7574 tls_type
= TLS_TLS
| TLS_LD
;
7577 case R_PPC64_GOT_TPREL16_DS
:
7578 case R_PPC64_GOT_TPREL16_LO_DS
:
7579 case R_PPC64_GOT_TPREL16_HI
:
7580 case R_PPC64_GOT_TPREL16_HA
:
7581 tls_type
= TLS_TLS
| TLS_TPREL
;
7584 case R_PPC64_GOT_DTPREL16_DS
:
7585 case R_PPC64_GOT_DTPREL16_LO_DS
:
7586 case R_PPC64_GOT_DTPREL16_HI
:
7587 case R_PPC64_GOT_DTPREL16_HA
:
7588 tls_type
= TLS_TLS
| TLS_DTPREL
;
7592 case R_PPC64_GOT16_LO
:
7593 case R_PPC64_GOT16_HI
:
7594 case R_PPC64_GOT16_HA
:
7595 case R_PPC64_GOT16_DS
:
7596 case R_PPC64_GOT16_LO_DS
:
7599 /* Relocation is to the entry for this symbol in the global
7601 struct got_entry
*ent
;
7605 if (htab
->sgot
== NULL
)
7612 if (local_got_ents
== NULL
)
7614 ent
= local_got_ents
[r_symndx
];
7617 for (; ent
!= NULL
; ent
= ent
->next
)
7618 if (ent
->addend
== rel
->r_addend
7619 && ent
->tls_type
== tls_type
)
7624 off
= ent
->got
.offset
;
7628 bfd_boolean dyn
= htab
->elf
.dynamic_sections_created
;
7629 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
)
7633 || (h
->elf_link_hash_flags
7634 & ELF_LINK_FORCED_LOCAL
))
7635 && (h
->elf_link_hash_flags
7636 & ELF_LINK_HASH_DEF_REGULAR
)))
7637 /* This is actually a static link, or it is a
7638 -Bsymbolic link and the symbol is defined
7639 locally, or the symbol was forced to be local
7640 because of a version file. */
7645 unresolved_reloc
= FALSE
;
7649 /* The offset must always be a multiple of 8. We use the
7650 least significant bit to record whether we have already
7651 processed this entry. */
7656 /* Generate relocs for the dynamic linker, except in
7657 the case of TLSLD where we'll use one entry per
7659 if ((info
->shared
|| indx
!= 0)
7660 && tls_type
!= (TLS_TLS
| TLS_LD
))
7662 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
7663 + htab
->sgot
->output_offset
7665 if (tls_type
== (TLS_TLS
| TLS_GD
))
7667 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
7668 outrel
.r_addend
= 0;
7669 loc
= htab
->srelgot
->contents
;
7670 loc
+= (htab
->srelgot
->reloc_count
++
7671 * sizeof (Elf64_External_Rela
));
7672 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7673 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7674 outrel
.r_offset
+= 8;
7676 else if (tls_type
== (TLS_TLS
| TLS_DTPREL
))
7677 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7678 else if (tls_type
== (TLS_TLS
| TLS_TPREL
))
7679 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
7681 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_RELATIVE
);
7683 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
7684 outrel
.r_addend
= rel
->r_addend
;
7686 outrel
.r_addend
+= relocation
;
7687 loc
= htab
->srelgot
->contents
;
7688 loc
+= (htab
->srelgot
->reloc_count
++
7689 * sizeof (Elf64_External_Rela
));
7690 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7693 /* Init the .got section contents if we're not
7694 emitting a reloc. */
7695 if (!(info
->shared
|| indx
!= 0))
7698 relocation
+= ent
->addend
;
7701 relocation
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7702 if ((tls_type
& TLS_TPREL
) != 0)
7703 relocation
+= DTP_OFFSET
- TP_OFFSET
;
7706 if ((tls_type
& (TLS_GD
| TLS_LD
)) != 0)
7708 if ((tls_type
& TLS_LD
) != 0)
7709 relocation
= - DTP_OFFSET
;
7710 bfd_put_64 (output_bfd
, relocation
,
7711 htab
->sgot
->contents
+ off
+ 8);
7714 bfd_put_64 (output_bfd
, relocation
,
7715 htab
->sgot
->contents
+ off
);
7717 ent
->got
.offset
|= 1;
7720 if (off
>= (bfd_vma
) -2)
7723 relocation
= htab
->sgot
->output_offset
+ off
;
7725 /* TOC base (r2) is TOC start plus 0x8000. */
7726 addend
= - TOC_BASE_OFF
;
7730 case R_PPC64_PLT16_HA
:
7731 case R_PPC64_PLT16_HI
:
7732 case R_PPC64_PLT16_LO
:
7735 /* Relocation is to the entry for this symbol in the
7736 procedure linkage table. */
7738 /* Resolve a PLT reloc against a local symbol directly,
7739 without using the procedure linkage table. */
7743 /* It's possible that we didn't make a PLT entry for this
7744 symbol. This happens when statically linking PIC code,
7745 or when using -Bsymbolic. Go find a match if there is a
7747 if (htab
->splt
!= NULL
)
7749 struct plt_entry
*ent
;
7750 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7751 if (ent
->addend
== rel
->r_addend
7752 && ent
->plt
.offset
!= (bfd_vma
) -1)
7754 relocation
= (htab
->splt
->output_section
->vma
7755 + htab
->splt
->output_offset
7757 unresolved_reloc
= FALSE
;
7762 /* TOC16 relocs. We want the offset relative to the TOC base,
7763 which is the address of the start of the TOC plus 0x8000.
7764 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7767 case R_PPC64_TOC16_LO
:
7768 case R_PPC64_TOC16_HI
:
7769 case R_PPC64_TOC16_DS
:
7770 case R_PPC64_TOC16_LO_DS
:
7771 case R_PPC64_TOC16_HA
:
7772 addend
-= TOCstart
+ TOC_BASE_OFF
;
7775 /* Relocate against the beginning of the section. */
7776 case R_PPC64_SECTOFF
:
7777 case R_PPC64_SECTOFF_LO
:
7778 case R_PPC64_SECTOFF_HI
:
7779 case R_PPC64_SECTOFF_DS
:
7780 case R_PPC64_SECTOFF_LO_DS
:
7781 case R_PPC64_SECTOFF_HA
:
7782 if (sec
!= (asection
*) 0)
7783 addend
-= sec
->output_section
->vma
;
7787 case R_PPC64_REL14_BRNTAKEN
:
7788 case R_PPC64_REL14_BRTAKEN
:
7792 case R_PPC64_TPREL16
:
7793 case R_PPC64_TPREL16_LO
:
7794 case R_PPC64_TPREL16_HI
:
7795 case R_PPC64_TPREL16_HA
:
7796 case R_PPC64_TPREL16_DS
:
7797 case R_PPC64_TPREL16_LO_DS
:
7798 case R_PPC64_TPREL16_HIGHER
:
7799 case R_PPC64_TPREL16_HIGHERA
:
7800 case R_PPC64_TPREL16_HIGHEST
:
7801 case R_PPC64_TPREL16_HIGHESTA
:
7802 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7804 /* The TPREL16 relocs shouldn't really be used in shared
7805 libs as they will result in DT_TEXTREL being set, but
7806 support them anyway. */
7810 case R_PPC64_DTPREL16
:
7811 case R_PPC64_DTPREL16_LO
:
7812 case R_PPC64_DTPREL16_HI
:
7813 case R_PPC64_DTPREL16_HA
:
7814 case R_PPC64_DTPREL16_DS
:
7815 case R_PPC64_DTPREL16_LO_DS
:
7816 case R_PPC64_DTPREL16_HIGHER
:
7817 case R_PPC64_DTPREL16_HIGHERA
:
7818 case R_PPC64_DTPREL16_HIGHEST
:
7819 case R_PPC64_DTPREL16_HIGHESTA
:
7820 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7823 case R_PPC64_TPREL64
:
7824 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7827 case R_PPC64_DTPREL64
:
7828 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7831 /* Relocations that may need to be propagated if this is a
7833 case R_PPC64_DTPMOD64
:
7837 case R_PPC64_ADDR14
:
7838 case R_PPC64_ADDR14_BRNTAKEN
:
7839 case R_PPC64_ADDR14_BRTAKEN
:
7840 case R_PPC64_ADDR16
:
7841 case R_PPC64_ADDR16_DS
:
7842 case R_PPC64_ADDR16_HA
:
7843 case R_PPC64_ADDR16_HI
:
7844 case R_PPC64_ADDR16_HIGHER
:
7845 case R_PPC64_ADDR16_HIGHERA
:
7846 case R_PPC64_ADDR16_HIGHEST
:
7847 case R_PPC64_ADDR16_HIGHESTA
:
7848 case R_PPC64_ADDR16_LO
:
7849 case R_PPC64_ADDR16_LO_DS
:
7850 case R_PPC64_ADDR24
:
7851 case R_PPC64_ADDR32
:
7852 case R_PPC64_ADDR64
:
7853 case R_PPC64_UADDR16
:
7854 case R_PPC64_UADDR32
:
7855 case R_PPC64_UADDR64
:
7856 /* r_symndx will be zero only for relocs against symbols
7857 from removed linkonce sections, or sections discarded by
7865 if ((input_section
->flags
& SEC_ALLOC
) == 0)
7868 if (NO_OPD_RELOCS
&& is_opd
)
7872 && (MUST_BE_DYN_RELOC (r_type
)
7875 && (! info
->symbolic
7876 || (h
->elf_link_hash_flags
7877 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
7881 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
7882 && (((h
->elf_link_hash_flags
7883 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
7884 && (h
->elf_link_hash_flags
7885 & ELF_LINK_HASH_DEF_REGULAR
) == 0)
7886 || h
->root
.type
== bfd_link_hash_undefweak
7887 || h
->root
.type
== bfd_link_hash_undefined
)))
7889 Elf_Internal_Rela outrel
;
7890 bfd_boolean skip
, relocate
;
7894 /* When generating a dynamic object, these relocations
7895 are copied into the output file to be resolved at run
7902 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
7904 if (outrel
.r_offset
== (bfd_vma
) -1)
7906 else if (outrel
.r_offset
== (bfd_vma
) -2)
7907 skip
= TRUE
, relocate
= TRUE
;
7908 outrel
.r_offset
+= (input_section
->output_section
->vma
7909 + input_section
->output_offset
);
7910 outrel
.r_addend
= rel
->r_addend
;
7913 memset (&outrel
, 0, sizeof outrel
);
7917 && (!MUST_BE_DYN_RELOC (r_type
)
7920 || (h
->elf_link_hash_flags
7921 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
7922 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
7925 /* This symbol is local, or marked to become local,
7926 or this is an opd section reloc which must point
7927 at a local function. */
7928 outrel
.r_addend
+= relocation
;
7931 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
7933 if (is_opd
&& h
!= NULL
)
7935 /* Lie about opd entries. This case occurs
7936 when building shared libraries and we
7937 reference a function in another shared
7938 lib. The same thing happens for a weak
7939 definition in an application that's
7940 overridden by a strong definition in a
7941 shared lib. (I believe this is a generic
7942 bug in binutils handling of weak syms.)
7943 In these cases we won't use the opd
7944 entry in this lib. */
7945 unresolved_reloc
= FALSE
;
7947 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
7953 if (bfd_is_abs_section (sec
))
7955 else if (sec
== NULL
|| sec
->owner
== NULL
)
7957 bfd_set_error (bfd_error_bad_value
);
7964 osec
= sec
->output_section
;
7965 indx
= elf_section_data (osec
)->dynindx
;
7967 /* We are turning this relocation into one
7968 against a section symbol, so subtract out
7969 the output section's address but not the
7970 offset of the input section in the output
7972 outrel
.r_addend
-= osec
->vma
;
7975 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
7979 sreloc
= elf_section_data (input_section
)->sreloc
;
7983 loc
= sreloc
->contents
;
7984 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
7985 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7987 /* If this reloc is against an external symbol, it will
7988 be computed at runtime, so there's no need to do
7996 case R_PPC64_GLOB_DAT
:
7997 case R_PPC64_JMP_SLOT
:
7998 case R_PPC64_RELATIVE
:
7999 /* We shouldn't ever see these dynamic relocs in relocatable
8003 case R_PPC64_PLTGOT16
:
8004 case R_PPC64_PLTGOT16_DS
:
8005 case R_PPC64_PLTGOT16_HA
:
8006 case R_PPC64_PLTGOT16_HI
:
8007 case R_PPC64_PLTGOT16_LO
:
8008 case R_PPC64_PLTGOT16_LO_DS
:
8009 case R_PPC64_PLTREL32
:
8010 case R_PPC64_PLTREL64
:
8011 /* These ones haven't been implemented yet. */
8013 (*_bfd_error_handler
)
8014 (_("%s: Relocation %s is not supported for symbol %s."),
8015 bfd_archive_filename (input_bfd
),
8016 ppc64_elf_howto_table
[(int) r_type
]->name
, sym_name
);
8018 bfd_set_error (bfd_error_invalid_operation
);
8023 /* Do any further special processing. */
8029 case R_PPC64_ADDR16_HA
:
8030 case R_PPC64_ADDR16_HIGHERA
:
8031 case R_PPC64_ADDR16_HIGHESTA
:
8032 case R_PPC64_GOT16_HA
:
8033 case R_PPC64_PLTGOT16_HA
:
8034 case R_PPC64_PLT16_HA
:
8035 case R_PPC64_TOC16_HA
:
8036 case R_PPC64_SECTOFF_HA
:
8037 case R_PPC64_TPREL16_HA
:
8038 case R_PPC64_DTPREL16_HA
:
8039 case R_PPC64_GOT_TLSGD16_HA
:
8040 case R_PPC64_GOT_TLSLD16_HA
:
8041 case R_PPC64_GOT_TPREL16_HA
:
8042 case R_PPC64_GOT_DTPREL16_HA
:
8043 case R_PPC64_TPREL16_HIGHER
:
8044 case R_PPC64_TPREL16_HIGHERA
:
8045 case R_PPC64_TPREL16_HIGHEST
:
8046 case R_PPC64_TPREL16_HIGHESTA
:
8047 case R_PPC64_DTPREL16_HIGHER
:
8048 case R_PPC64_DTPREL16_HIGHERA
:
8049 case R_PPC64_DTPREL16_HIGHEST
:
8050 case R_PPC64_DTPREL16_HIGHESTA
:
8051 /* It's just possible that this symbol is a weak symbol
8052 that's not actually defined anywhere. In that case,
8053 'sec' would be NULL, and we should leave the symbol
8054 alone (it will be set to zero elsewhere in the link). */
8056 /* Add 0x10000 if sign bit in 0:15 is set. */
8057 addend
+= ((relocation
+ addend
) & 0x8000) << 1;
8060 case R_PPC64_ADDR16_DS
:
8061 case R_PPC64_ADDR16_LO_DS
:
8062 case R_PPC64_GOT16_DS
:
8063 case R_PPC64_GOT16_LO_DS
:
8064 case R_PPC64_PLT16_LO_DS
:
8065 case R_PPC64_SECTOFF_DS
:
8066 case R_PPC64_SECTOFF_LO_DS
:
8067 case R_PPC64_TOC16_DS
:
8068 case R_PPC64_TOC16_LO_DS
:
8069 case R_PPC64_PLTGOT16_DS
:
8070 case R_PPC64_PLTGOT16_LO_DS
:
8071 case R_PPC64_GOT_TPREL16_DS
:
8072 case R_PPC64_GOT_TPREL16_LO_DS
:
8073 case R_PPC64_GOT_DTPREL16_DS
:
8074 case R_PPC64_GOT_DTPREL16_LO_DS
:
8075 case R_PPC64_TPREL16_DS
:
8076 case R_PPC64_TPREL16_LO_DS
:
8077 case R_PPC64_DTPREL16_DS
:
8078 case R_PPC64_DTPREL16_LO_DS
:
8079 if (((relocation
+ addend
) & 3) != 0)
8081 (*_bfd_error_handler
)
8082 (_("%s: error: relocation %s not a multiple of 4"),
8083 bfd_archive_filename (input_bfd
),
8084 ppc64_elf_howto_table
[(int) r_type
]->name
);
8085 bfd_set_error (bfd_error_bad_value
);
8092 case R_PPC64_REL14_BRNTAKEN
:
8093 case R_PPC64_REL14_BRTAKEN
:
8094 max_br_offset
= 1 << 15;
8098 max_br_offset
= 1 << 25;
8101 /* If the branch is out of reach, then redirect the
8102 call to the local stub for this function. */
8103 from
= (rel
->r_offset
8104 + input_section
->output_offset
8105 + input_section
->output_section
->vma
);
8106 if (relocation
+ addend
- from
+ max_br_offset
>= 2 * max_br_offset
8107 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, h
,
8108 rel
, htab
)) != NULL
)
8110 /* Munge up the value and addend so that we call the stub
8111 rather than the procedure directly. */
8112 relocation
= (stub_entry
->stub_offset
8113 + stub_entry
->stub_sec
->output_offset
8114 + stub_entry
->stub_sec
->output_section
->vma
);
8120 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8121 because such sections are not SEC_ALLOC and thus ld.so will
8122 not process them. */
8123 if (unresolved_reloc
8124 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
8125 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
8127 (*_bfd_error_handler
)
8128 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8129 bfd_archive_filename (input_bfd
),
8130 bfd_get_section_name (input_bfd
, input_section
),
8131 (long) rel
->r_offset
,
8132 h
->root
.root
.string
);
8136 r
= _bfd_final_link_relocate (ppc64_elf_howto_table
[(int) r_type
],
8144 if (r
!= bfd_reloc_ok
)
8150 if (h
->root
.type
== bfd_link_hash_undefweak
8151 && ppc64_elf_howto_table
[(int) r_type
]->pc_relative
)
8153 /* Assume this is a call protected by other code that
8154 detects the symbol is undefined. If this is the case,
8155 we can safely ignore the overflow. If not, the
8156 program is hosed anyway, and a little warning isn't
8162 name
= h
->root
.root
.string
;
8166 name
= bfd_elf_local_sym_name (input_bfd
, sym
);
8171 if (r
== bfd_reloc_overflow
)
8175 if (!((*info
->callbacks
->reloc_overflow
)
8176 (info
, name
, ppc64_elf_howto_table
[(int) r_type
]->name
,
8177 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
)))
8182 (*_bfd_error_handler
)
8183 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8184 bfd_archive_filename (input_bfd
),
8185 bfd_get_section_name (input_bfd
, input_section
),
8186 (long) rel
->r_offset
, name
, (int) r
);
8195 /* Finish up dynamic symbol handling. We set the contents of various
8196 dynamic sections here. */
8199 ppc64_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8201 struct bfd_link_info
*info
;
8202 struct elf_link_hash_entry
*h
;
8203 Elf_Internal_Sym
*sym
;
8205 struct ppc_link_hash_table
*htab
;
8208 htab
= ppc_hash_table (info
);
8209 dynobj
= htab
->elf
.dynobj
;
8211 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
8213 struct plt_entry
*ent
;
8214 Elf_Internal_Rela rela
;
8217 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8218 if (ent
->plt
.offset
!= (bfd_vma
) -1)
8220 /* This symbol has an entry in the procedure linkage
8221 table. Set it up. */
8223 if (htab
->splt
== NULL
8224 || htab
->srelplt
== NULL
8225 || htab
->sglink
== NULL
)
8228 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8229 fill in the PLT entry. */
8231 rela
.r_offset
= (htab
->splt
->output_section
->vma
8232 + htab
->splt
->output_offset
8234 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
8235 rela
.r_addend
= ent
->addend
;
8237 loc
= htab
->srelplt
->contents
;
8238 loc
+= ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
8239 * sizeof (Elf64_External_Rela
));
8240 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8244 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
8246 Elf_Internal_Rela rela
;
8249 /* This symbol needs a copy reloc. Set it up. */
8251 if (h
->dynindx
== -1
8252 || (h
->root
.type
!= bfd_link_hash_defined
8253 && h
->root
.type
!= bfd_link_hash_defweak
)
8254 || htab
->srelbss
== NULL
)
8257 rela
.r_offset
= (h
->root
.u
.def
.value
8258 + h
->root
.u
.def
.section
->output_section
->vma
8259 + h
->root
.u
.def
.section
->output_offset
);
8260 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
8262 loc
= htab
->srelbss
->contents
;
8263 loc
+= htab
->srelbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8264 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8267 /* Mark some specially defined symbols as absolute. */
8268 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0)
8269 sym
->st_shndx
= SHN_ABS
;
8274 /* Used to decide how to sort relocs in an optimal manner for the
8275 dynamic linker, before writing them out. */
8277 static enum elf_reloc_type_class
8278 ppc64_elf_reloc_type_class (rela
)
8279 const Elf_Internal_Rela
*rela
;
8281 enum elf_ppc64_reloc_type r_type
;
8283 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rela
->r_info
);
8286 case R_PPC64_RELATIVE
:
8287 return reloc_class_relative
;
8288 case R_PPC64_JMP_SLOT
:
8289 return reloc_class_plt
;
8291 return reloc_class_copy
;
8293 return reloc_class_normal
;
8297 /* Finish up the dynamic sections. */
8300 ppc64_elf_finish_dynamic_sections (output_bfd
, info
)
8302 struct bfd_link_info
*info
;
8304 struct ppc_link_hash_table
*htab
;
8308 htab
= ppc_hash_table (info
);
8309 dynobj
= htab
->elf
.dynobj
;
8310 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8312 if (htab
->elf
.dynamic_sections_created
)
8314 Elf64_External_Dyn
*dyncon
, *dynconend
;
8316 if (sdyn
== NULL
|| htab
->sgot
== NULL
)
8319 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
8320 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
8321 for (; dyncon
< dynconend
; dyncon
++)
8323 Elf_Internal_Dyn dyn
;
8326 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
8333 case DT_PPC64_GLINK
:
8335 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8339 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8342 dyn
.d_un
.d_ptr
= s
->vma
;
8345 case DT_PPC64_OPDSZ
:
8346 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8349 dyn
.d_un
.d_val
= s
->_raw_size
;
8354 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8359 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8363 dyn
.d_un
.d_val
= htab
->srelplt
->_raw_size
;
8367 /* Don't count procedure linkage table relocs in the
8368 overall reloc count. */
8372 dyn
.d_un
.d_val
-= s
->_raw_size
;
8376 /* We may not be using the standard ELF linker script.
8377 If .rela.plt is the first .rela section, we adjust
8378 DT_RELA to not include it. */
8382 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
8384 dyn
.d_un
.d_ptr
+= s
->_raw_size
;
8388 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
8392 if (htab
->sgot
!= NULL
&& htab
->sgot
->_raw_size
!= 0)
8394 /* Fill in the first entry in the global offset table.
8395 We use it to hold the link-time TOCbase. */
8396 bfd_put_64 (output_bfd
,
8397 elf_gp (output_bfd
) + TOC_BASE_OFF
,
8398 htab
->sgot
->contents
);
8400 /* Set .got entry size. */
8401 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
8404 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
8406 /* Set .plt entry size. */
8407 elf_section_data (htab
->splt
->output_section
)->this_hdr
.sh_entsize
8414 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8415 #define TARGET_LITTLE_NAME "elf64-powerpcle"
8416 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8417 #define TARGET_BIG_NAME "elf64-powerpc"
8418 #define ELF_ARCH bfd_arch_powerpc
8419 #define ELF_MACHINE_CODE EM_PPC64
8420 #define ELF_MAXPAGESIZE 0x10000
8421 #define elf_info_to_howto ppc64_elf_info_to_howto
8423 #ifdef EM_CYGNUS_POWERPC
8424 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8428 #define ELF_MACHINE_ALT2 EM_PPC_OLD
8431 #define elf_backend_want_got_sym 0
8432 #define elf_backend_want_plt_sym 0
8433 #define elf_backend_plt_alignment 3
8434 #define elf_backend_plt_not_loaded 1
8435 #define elf_backend_got_symbol_offset 0
8436 #define elf_backend_got_header_size 8
8437 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
8438 #define elf_backend_can_gc_sections 1
8439 #define elf_backend_can_refcount 1
8440 #define elf_backend_rela_normal 1
8442 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
8443 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
8444 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
8445 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
8446 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
8448 #define elf_backend_object_p ppc64_elf_object_p
8449 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8450 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8451 #define elf_backend_check_relocs ppc64_elf_check_relocs
8452 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8453 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8454 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
8455 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
8456 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
8457 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
8458 #define elf_backend_relocate_section ppc64_elf_relocate_section
8459 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8460 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8461 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
8463 #include "elf64-target.h"