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 (strcmp (h
->root
.root
.string
, ".__tls_get_addr") == 0)
3731 htab
->tls_get_addr
= h
;
3732 sec
->has_tls_reloc
= 1;
3737 case R_PPC64_TPREL64
:
3738 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_TPREL
;
3740 info
->flags
|= DF_STATIC_TLS
;
3743 case R_PPC64_DTPMOD64
:
3744 if (rel
+ 1 < rel_end
3745 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
3746 && rel
[1].r_offset
== rel
->r_offset
+ 8)
3747 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_GD
;
3749 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_LD
;
3752 case R_PPC64_DTPREL64
:
3753 tls_type
= TLS_EXPLICIT
| TLS_TLS
| TLS_DTPREL
;
3755 && rel
[-1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPMOD64
)
3756 && rel
[-1].r_offset
== rel
->r_offset
- 8)
3757 /* This is the second reloc of a dtpmod, dtprel pair.
3758 Don't mark with TLS_DTPREL. */
3762 sec
->has_tls_reloc
= 1;
3765 struct ppc_link_hash_entry
*eh
;
3766 eh
= (struct ppc_link_hash_entry
*) h
;
3767 eh
->tls_mask
|= tls_type
;
3770 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
,
3771 rel
->r_addend
, tls_type
))
3774 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3776 /* One extra to simplify get_tls_mask. */
3777 bfd_size_type amt
= sec
->_raw_size
* sizeof (unsigned) / 8 + 1;
3778 ppc64_elf_section_data (sec
)->t_symndx
3779 = (unsigned *) bfd_zalloc (abfd
, amt
);
3780 if (ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
3783 BFD_ASSERT (rel
->r_offset
% 8 == 0);
3784 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8] = r_symndx
;
3786 /* Mark the second slot of a GD or LD entry.
3787 -1 to indicate GD and -2 to indicate LD. */
3788 if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_GD
))
3789 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -1;
3790 else if (tls_type
== (TLS_EXPLICIT
| TLS_TLS
| TLS_LD
))
3791 ppc64_elf_section_data (sec
)->t_symndx
[rel
->r_offset
/ 8 + 1] = -2;
3794 case R_PPC64_TPREL16
:
3795 case R_PPC64_TPREL16_LO
:
3796 case R_PPC64_TPREL16_HI
:
3797 case R_PPC64_TPREL16_HA
:
3798 case R_PPC64_TPREL16_DS
:
3799 case R_PPC64_TPREL16_LO_DS
:
3800 case R_PPC64_TPREL16_HIGHER
:
3801 case R_PPC64_TPREL16_HIGHERA
:
3802 case R_PPC64_TPREL16_HIGHEST
:
3803 case R_PPC64_TPREL16_HIGHESTA
:
3806 info
->flags
|= DF_STATIC_TLS
;
3811 case R_PPC64_ADDR64
:
3812 if (opd_sym_map
!= NULL
3814 && h
->root
.root
.string
[0] == '.'
3815 && h
->root
.root
.string
[1] != 0)
3817 struct elf_link_hash_entry
*fdh
;
3819 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
3820 FALSE
, FALSE
, FALSE
);
3823 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
3824 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
3825 ((struct ppc_link_hash_entry
*) h
)->is_func
= 1;
3826 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
3829 if (opd_sym_map
!= NULL
3831 && rel
+ 1 < rel_end
3832 && ((enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
)
3837 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
, sec
,
3842 opd_sym_map
[rel
->r_offset
/ 24] = s
;
3849 case R_PPC64_ADDR14
:
3850 case R_PPC64_ADDR14_BRNTAKEN
:
3851 case R_PPC64_ADDR14_BRTAKEN
:
3852 case R_PPC64_ADDR16
:
3853 case R_PPC64_ADDR16_DS
:
3854 case R_PPC64_ADDR16_HA
:
3855 case R_PPC64_ADDR16_HI
:
3856 case R_PPC64_ADDR16_HIGHER
:
3857 case R_PPC64_ADDR16_HIGHERA
:
3858 case R_PPC64_ADDR16_HIGHEST
:
3859 case R_PPC64_ADDR16_HIGHESTA
:
3860 case R_PPC64_ADDR16_LO
:
3861 case R_PPC64_ADDR16_LO_DS
:
3862 case R_PPC64_ADDR24
:
3863 case R_PPC64_ADDR32
:
3864 case R_PPC64_UADDR16
:
3865 case R_PPC64_UADDR32
:
3866 case R_PPC64_UADDR64
:
3868 /* Don't propagate .opd relocs. */
3869 if (NO_OPD_RELOCS
&& opd_sym_map
!= NULL
)
3872 /* If we are creating a shared library, and this is a reloc
3873 against a global symbol, or a non PC relative reloc
3874 against a local symbol, then we need to copy the reloc
3875 into the shared library. However, if we are linking with
3876 -Bsymbolic, we do not need to copy a reloc against a
3877 global symbol which is defined in an object we are
3878 including in the link (i.e., DEF_REGULAR is set). At
3879 this point we have not seen all the input files, so it is
3880 possible that DEF_REGULAR is not set now but will be set
3881 later (it is never cleared). In case of a weak definition,
3882 DEF_REGULAR may be cleared later by a strong definition in
3883 a shared library. We account for that possibility below by
3884 storing information in the relocs_copied field of the hash
3885 table entry. A similar situation occurs when creating
3886 shared libraries and symbol visibility changes render the
3889 If on the other hand, we are creating an executable, we
3890 may need to keep relocations for symbols satisfied by a
3891 dynamic library if we manage to avoid copy relocs for the
3895 && (sec
->flags
& SEC_ALLOC
) != 0
3896 && (MUST_BE_DYN_RELOC (r_type
)
3898 && (! info
->symbolic
3899 || h
->root
.type
== bfd_link_hash_defweak
3900 || (h
->elf_link_hash_flags
3901 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3903 && (sec
->flags
& SEC_ALLOC
) != 0
3905 && (h
->root
.type
== bfd_link_hash_defweak
3906 || (h
->elf_link_hash_flags
3907 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3909 struct ppc_dyn_relocs
*p
;
3910 struct ppc_dyn_relocs
**head
;
3912 /* We must copy these reloc types into the output file.
3913 Create a reloc section in dynobj and make room for
3920 name
= (bfd_elf_string_from_elf_section
3922 elf_elfheader (abfd
)->e_shstrndx
,
3923 elf_section_data (sec
)->rel_hdr
.sh_name
));
3927 if (strncmp (name
, ".rela", 5) != 0
3928 || strcmp (bfd_get_section_name (abfd
, sec
),
3931 (*_bfd_error_handler
)
3932 (_("%s: bad relocation section name `%s\'"),
3933 bfd_archive_filename (abfd
), name
);
3934 bfd_set_error (bfd_error_bad_value
);
3937 dynobj
= htab
->elf
.dynobj
;
3938 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3943 sreloc
= bfd_make_section (dynobj
, name
);
3944 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3945 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3946 if ((sec
->flags
& SEC_ALLOC
) != 0)
3947 flags
|= SEC_ALLOC
| SEC_LOAD
;
3949 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
3950 || ! bfd_set_section_alignment (dynobj
, sreloc
, 3))
3953 elf_section_data (sec
)->sreloc
= sreloc
;
3956 /* If this is a global symbol, we count the number of
3957 relocations we need for this symbol. */
3960 head
= &((struct ppc_link_hash_entry
*) h
)->dyn_relocs
;
3964 /* Track dynamic relocs needed for local syms too.
3965 We really need local syms available to do this
3969 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
3974 head
= ((struct ppc_dyn_relocs
**)
3975 &elf_section_data (s
)->local_dynrel
);
3979 if (p
== NULL
|| p
->sec
!= sec
)
3981 p
= ((struct ppc_dyn_relocs
*)
3982 bfd_alloc (htab
->elf
.dynobj
,
3983 (bfd_size_type
) sizeof *p
));
3994 if (!MUST_BE_DYN_RELOC (r_type
))
4007 /* Return the section that should be marked against GC for a given
4011 ppc64_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
)
4013 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4014 Elf_Internal_Rela
*rel
;
4015 struct elf_link_hash_entry
*h
;
4016 Elf_Internal_Sym
*sym
;
4018 asection
*rsec
= NULL
;
4022 enum elf_ppc64_reloc_type r_type
;
4023 struct ppc_link_hash_entry
*fdh
;
4025 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4028 case R_PPC64_GNU_VTINHERIT
:
4029 case R_PPC64_GNU_VTENTRY
:
4033 switch (h
->root
.type
)
4035 case bfd_link_hash_defined
:
4036 case bfd_link_hash_defweak
:
4037 fdh
= (struct ppc_link_hash_entry
*) h
;
4039 /* Function descriptor syms cause the associated
4040 function code sym section to be marked. */
4041 if (fdh
->is_func_descriptor
)
4042 rsec
= fdh
->oh
->root
.u
.def
.section
;
4044 /* Function entry syms return NULL if they are in .opd
4045 and are not ._start (or others undefined on the ld
4046 command line). Thus we avoid marking all function
4047 sections, as all functions are referenced in .opd. */
4048 else if ((fdh
->oh
!= NULL
4049 && ((struct ppc_link_hash_entry
*) fdh
->oh
)->is_entry
)
4050 || ppc64_elf_section_data (sec
)->opd
.func_sec
== NULL
)
4051 rsec
= h
->root
.u
.def
.section
;
4054 case bfd_link_hash_common
:
4055 rsec
= h
->root
.u
.c
.p
->section
;
4065 asection
**opd_sym_section
;
4067 rsec
= bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
4068 opd_sym_section
= ppc64_elf_section_data (rsec
)->opd
.func_sec
;
4069 if (opd_sym_section
!= NULL
)
4070 rsec
= opd_sym_section
[sym
->st_value
/ 24];
4071 else if (ppc64_elf_section_data (sec
)->opd
.func_sec
!= NULL
)
4078 /* Update the .got, .plt. and dynamic reloc reference counts for the
4079 section being removed. */
4082 ppc64_elf_gc_sweep_hook (abfd
, info
, sec
, relocs
)
4084 struct bfd_link_info
*info
;
4086 const Elf_Internal_Rela
*relocs
;
4088 struct ppc_link_hash_table
*htab
;
4089 Elf_Internal_Shdr
*symtab_hdr
;
4090 struct elf_link_hash_entry
**sym_hashes
;
4091 struct got_entry
**local_got_ents
;
4092 const Elf_Internal_Rela
*rel
, *relend
;
4094 elf_section_data (sec
)->local_dynrel
= NULL
;
4096 htab
= ppc_hash_table (info
);
4097 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
4098 sym_hashes
= elf_sym_hashes (abfd
);
4099 local_got_ents
= elf_local_got_ents (abfd
);
4101 relend
= relocs
+ sec
->reloc_count
;
4102 for (rel
= relocs
; rel
< relend
; rel
++)
4104 unsigned long r_symndx
;
4105 enum elf_ppc64_reloc_type r_type
;
4106 struct elf_link_hash_entry
*h
;
4109 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4110 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4113 case R_PPC64_GOT_TLSLD16
:
4114 case R_PPC64_GOT_TLSLD16_LO
:
4115 case R_PPC64_GOT_TLSLD16_HI
:
4116 case R_PPC64_GOT_TLSLD16_HA
:
4117 htab
->tlsld_got
.refcount
-= 1;
4118 tls_type
= TLS_TLS
| TLS_LD
;
4121 case R_PPC64_GOT_TLSGD16
:
4122 case R_PPC64_GOT_TLSGD16_LO
:
4123 case R_PPC64_GOT_TLSGD16_HI
:
4124 case R_PPC64_GOT_TLSGD16_HA
:
4125 tls_type
= TLS_TLS
| TLS_GD
;
4128 case R_PPC64_GOT_TPREL16_DS
:
4129 case R_PPC64_GOT_TPREL16_LO_DS
:
4130 case R_PPC64_GOT_TPREL16_HI
:
4131 case R_PPC64_GOT_TPREL16_HA
:
4132 tls_type
= TLS_TLS
| TLS_TPREL
;
4135 case R_PPC64_GOT_DTPREL16_DS
:
4136 case R_PPC64_GOT_DTPREL16_LO_DS
:
4137 case R_PPC64_GOT_DTPREL16_HI
:
4138 case R_PPC64_GOT_DTPREL16_HA
:
4139 tls_type
= TLS_TLS
| TLS_DTPREL
;
4143 case R_PPC64_GOT16_DS
:
4144 case R_PPC64_GOT16_HA
:
4145 case R_PPC64_GOT16_HI
:
4146 case R_PPC64_GOT16_LO
:
4147 case R_PPC64_GOT16_LO_DS
:
4150 struct got_entry
*ent
;
4152 if (r_symndx
>= symtab_hdr
->sh_info
)
4154 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4158 ent
= local_got_ents
[r_symndx
];
4160 for (; ent
!= NULL
; ent
= ent
->next
)
4161 if (ent
->addend
== rel
->r_addend
4162 && ent
->tls_type
== tls_type
)
4166 if (ent
->got
.refcount
> 0)
4167 ent
->got
.refcount
-= 1;
4171 case R_PPC64_PLT16_HA
:
4172 case R_PPC64_PLT16_HI
:
4173 case R_PPC64_PLT16_LO
:
4177 case R_PPC64_REL14_BRNTAKEN
:
4178 case R_PPC64_REL14_BRTAKEN
:
4180 if (r_symndx
>= symtab_hdr
->sh_info
)
4182 struct plt_entry
*ent
;
4184 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4185 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4186 if (ent
->addend
== rel
->r_addend
)
4190 if (ent
->plt
.refcount
> 0)
4191 ent
->plt
.refcount
-= 1;
4198 if (r_symndx
>= symtab_hdr
->sh_info
)
4200 struct ppc_link_hash_entry
*eh
;
4201 struct ppc_dyn_relocs
**pp
;
4202 struct ppc_dyn_relocs
*p
;
4204 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4205 eh
= (struct ppc_link_hash_entry
*) h
;
4207 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4219 case R_PPC64_DTPMOD64
:
4220 case R_PPC64_DTPREL64
:
4221 case R_PPC64_TPREL64
:
4222 case R_PPC64_ADDR14
:
4223 case R_PPC64_ADDR14_BRNTAKEN
:
4224 case R_PPC64_ADDR14_BRTAKEN
:
4225 case R_PPC64_ADDR16
:
4226 case R_PPC64_ADDR16_DS
:
4227 case R_PPC64_ADDR16_HA
:
4228 case R_PPC64_ADDR16_HI
:
4229 case R_PPC64_ADDR16_HIGHER
:
4230 case R_PPC64_ADDR16_HIGHERA
:
4231 case R_PPC64_ADDR16_HIGHEST
:
4232 case R_PPC64_ADDR16_HIGHESTA
:
4233 case R_PPC64_ADDR16_LO
:
4234 case R_PPC64_ADDR16_LO_DS
:
4235 case R_PPC64_ADDR24
:
4236 case R_PPC64_ADDR32
:
4237 case R_PPC64_ADDR64
:
4238 case R_PPC64_UADDR16
:
4239 case R_PPC64_UADDR32
:
4240 case R_PPC64_UADDR64
:
4242 if (r_symndx
>= symtab_hdr
->sh_info
)
4244 struct ppc_link_hash_entry
*eh
;
4245 struct ppc_dyn_relocs
**pp
;
4246 struct ppc_dyn_relocs
*p
;
4248 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4249 eh
= (struct ppc_link_hash_entry
*) h
;
4251 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4269 /* Called via elf_link_hash_traverse to transfer dynamic linking
4270 information on function code symbol entries to their corresponding
4271 function descriptor symbol entries. */
4273 func_desc_adjust (h
, inf
)
4274 struct elf_link_hash_entry
*h
;
4277 struct bfd_link_info
*info
;
4278 struct ppc_link_hash_table
*htab
;
4279 struct plt_entry
*ent
;
4281 if (h
->root
.type
== bfd_link_hash_indirect
)
4284 if (h
->root
.type
== bfd_link_hash_warning
)
4285 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4287 info
= (struct bfd_link_info
*) inf
;
4288 htab
= ppc_hash_table (info
);
4290 /* If this is a function code symbol, transfer dynamic linking
4291 information to the function descriptor symbol. */
4292 if (!((struct ppc_link_hash_entry
*) h
)->is_func
)
4295 if (h
->root
.type
== bfd_link_hash_undefweak
4296 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
))
4297 htab
->have_undefweak
= TRUE
;
4299 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4300 if (ent
->plt
.refcount
> 0)
4303 && h
->root
.root
.string
[0] == '.'
4304 && h
->root
.root
.string
[1] != '\0')
4306 struct elf_link_hash_entry
*fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4307 bfd_boolean force_local
;
4309 /* Find the corresponding function descriptor symbol. Create it
4310 as undefined if necessary. */
4313 fdh
= elf_link_hash_lookup (&htab
->elf
, h
->root
.root
.string
+ 1,
4314 FALSE
, FALSE
, TRUE
);
4318 && (h
->root
.type
== bfd_link_hash_undefined
4319 || h
->root
.type
== bfd_link_hash_undefweak
))
4323 struct bfd_link_hash_entry
*bh
;
4325 abfd
= h
->root
.u
.undef
.abfd
;
4326 newsym
= bfd_make_empty_symbol (abfd
);
4327 newsym
->name
= h
->root
.root
.string
+ 1;
4328 newsym
->section
= bfd_und_section_ptr
;
4330 newsym
->flags
= BSF_OBJECT
;
4331 if (h
->root
.type
== bfd_link_hash_undefweak
)
4332 newsym
->flags
|= BSF_WEAK
;
4335 if ( !(_bfd_generic_link_add_one_symbol
4336 (info
, abfd
, newsym
->name
, newsym
->flags
,
4337 newsym
->section
, newsym
->value
, NULL
, FALSE
, FALSE
, &bh
)))
4341 fdh
= (struct elf_link_hash_entry
*) bh
;
4342 fdh
->elf_link_hash_flags
&= ~ELF_LINK_NON_ELF
;
4346 && (fdh
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0
4348 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4349 || (fdh
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0))
4351 if (fdh
->dynindx
== -1)
4352 if (! bfd_elf64_link_record_dynamic_symbol (info
, fdh
))
4354 fdh
->elf_link_hash_flags
|= (h
->elf_link_hash_flags
4355 & (ELF_LINK_HASH_REF_REGULAR
4356 | ELF_LINK_HASH_REF_DYNAMIC
4357 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4358 | ELF_LINK_NON_GOT_REF
));
4359 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4361 fdh
->plt
.plist
= h
->plt
.plist
;
4362 fdh
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
4364 ((struct ppc_link_hash_entry
*) fdh
)->is_func_descriptor
= 1;
4365 ((struct ppc_link_hash_entry
*) fdh
)->oh
= h
;
4366 ((struct ppc_link_hash_entry
*) h
)->oh
= fdh
;
4369 /* Now that the info is on the function descriptor, clear the
4370 function code sym info. Any function code syms for which we
4371 don't have a definition in a regular file, we force local.
4372 This prevents a shared library from exporting syms that have
4373 been imported from another library. Function code syms that
4374 are really in the library we must leave global to prevent the
4375 linker dragging in a definition from a static library. */
4376 force_local
= (info
->shared
4377 && ((h
->elf_link_hash_flags
4378 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4380 || (fdh
->elf_link_hash_flags
4381 & ELF_LINK_HASH_DEF_REGULAR
) == 0
4382 || (fdh
->elf_link_hash_flags
4383 & ELF_LINK_FORCED_LOCAL
) != 0));
4384 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4390 #define MIN_SAVE_FPR 14
4391 #define MAX_SAVE_FPR 31
4393 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4394 this hook to a) provide some gcc support functions, and b) transfer
4395 dynamic linking information gathered so far on function code symbol
4396 entries, to their corresponding function descriptor symbol entries. */
4398 ppc64_elf_func_desc_adjust (obfd
, info
)
4399 bfd
*obfd ATTRIBUTE_UNUSED
;
4400 struct bfd_link_info
*info
;
4402 struct ppc_link_hash_table
*htab
;
4403 unsigned int lowest_savef
= MAX_SAVE_FPR
+ 2;
4404 unsigned int lowest_restf
= MAX_SAVE_FPR
+ 2;
4406 struct elf_link_hash_entry
*h
;
4410 htab
= ppc_hash_table (info
);
4412 if (htab
->sfpr
== NULL
)
4413 /* We don't have any relocs. */
4416 /* First provide any missing ._savef* and ._restf* functions. */
4417 memcpy (sym
, "._savef14", 10);
4418 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4420 sym
[7] = i
/ 10 + '0';
4421 sym
[8] = i
% 10 + '0';
4422 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4424 && h
->root
.type
== bfd_link_hash_undefined
)
4426 if (lowest_savef
> i
)
4428 h
->root
.type
= bfd_link_hash_defined
;
4429 h
->root
.u
.def
.section
= htab
->sfpr
;
4430 h
->root
.u
.def
.value
= (i
- lowest_savef
) * 4;
4432 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4433 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4437 memcpy (sym
, "._restf14", 10);
4438 for (i
= MIN_SAVE_FPR
; i
<= MAX_SAVE_FPR
; i
++)
4440 sym
[7] = i
/ 10 + '0';
4441 sym
[8] = i
% 10 + '0';
4442 h
= elf_link_hash_lookup (&htab
->elf
, sym
, FALSE
, FALSE
, TRUE
);
4444 && h
->root
.type
== bfd_link_hash_undefined
)
4446 if (lowest_restf
> i
)
4448 h
->root
.type
= bfd_link_hash_defined
;
4449 h
->root
.u
.def
.section
= htab
->sfpr
;
4450 h
->root
.u
.def
.value
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4451 + (i
- lowest_restf
) * 4);
4453 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
4454 _bfd_elf_link_hash_hide_symbol (info
, h
, info
->shared
);
4458 elf_link_hash_traverse (&htab
->elf
, func_desc_adjust
, (PTR
) info
);
4460 htab
->sfpr
->_raw_size
= ((MAX_SAVE_FPR
+ 2 - lowest_savef
) * 4
4461 + (MAX_SAVE_FPR
+ 2 - lowest_restf
) * 4);
4463 if (htab
->sfpr
->_raw_size
== 0)
4465 if (!htab
->have_undefweak
)
4467 _bfd_strip_section_from_output (info
, htab
->sfpr
);
4471 htab
->sfpr
->_raw_size
= 4;
4474 p
= (bfd_byte
*) bfd_alloc (htab
->elf
.dynobj
, htab
->sfpr
->_raw_size
);
4477 htab
->sfpr
->contents
= p
;
4479 for (i
= lowest_savef
; i
<= MAX_SAVE_FPR
; i
++)
4481 unsigned int fpr
= i
<< 21;
4482 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4483 bfd_put_32 (htab
->elf
.dynobj
, STFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4486 if (lowest_savef
<= MAX_SAVE_FPR
)
4488 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4492 for (i
= lowest_restf
; i
<= MAX_SAVE_FPR
; i
++)
4494 unsigned int fpr
= i
<< 21;
4495 unsigned int stackoff
= (1 << 16) - (MAX_SAVE_FPR
+ 1 - i
) * 8;
4496 bfd_put_32 (htab
->elf
.dynobj
, LFD_FR0_0R1
+ fpr
+ stackoff
, p
);
4499 if (lowest_restf
<= MAX_SAVE_FPR
4500 || htab
->sfpr
->_raw_size
== 4)
4502 bfd_put_32 (htab
->elf
.dynobj
, BLR
, p
);
4508 /* Adjust a symbol defined by a dynamic object and referenced by a
4509 regular object. The current definition is in some section of the
4510 dynamic object, but we're not including those sections. We have to
4511 change the definition to something the rest of the link can
4515 ppc64_elf_adjust_dynamic_symbol (info
, h
)
4516 struct bfd_link_info
*info
;
4517 struct elf_link_hash_entry
*h
;
4519 struct ppc_link_hash_table
*htab
;
4520 struct ppc_link_hash_entry
* eh
;
4521 struct ppc_dyn_relocs
*p
;
4523 unsigned int power_of_two
;
4525 htab
= ppc_hash_table (info
);
4527 /* Deal with function syms. */
4528 if (h
->type
== STT_FUNC
4529 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
4531 /* Clear procedure linkage table information for any symbol that
4532 won't need a .plt entry. */
4533 struct plt_entry
*ent
;
4534 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
4535 if (ent
->plt
.refcount
> 0)
4537 if (!((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
4539 || (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
4541 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) == 0
4542 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) == 0))
4544 h
->plt
.plist
= NULL
;
4545 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
4550 h
->plt
.plist
= NULL
;
4552 /* If this is a weak symbol, and there is a real definition, the
4553 processor independent code will have arranged for us to see the
4554 real definition first, and we can just use the same value. */
4555 if (h
->weakdef
!= NULL
)
4557 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
4558 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
4559 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
4560 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
4564 /* This is a reference to a symbol defined by a dynamic object which
4565 is not a function. */
4567 /* If we are creating a shared library, we must presume that the
4568 only references to the symbol are via the global offset table.
4569 For such cases we need not do anything here; the relocations will
4570 be handled correctly by relocate_section. */
4574 /* If there are no references to this symbol that do not use the
4575 GOT, we don't need to generate a copy reloc. */
4576 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
4579 eh
= (struct ppc_link_hash_entry
*) h
;
4580 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4582 s
= p
->sec
->output_section
;
4583 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
4587 /* If we didn't find any dynamic relocs in read-only sections, then
4588 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4591 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
4595 /* We must allocate the symbol in our .dynbss section, which will
4596 become part of the .bss section of the executable. There will be
4597 an entry for this symbol in the .dynsym section. The dynamic
4598 object will contain position independent code, so all references
4599 from the dynamic object to this symbol will go through the global
4600 offset table. The dynamic linker will use the .dynsym entry to
4601 determine the address it must put in the global offset table, so
4602 both the dynamic object and the regular object will refer to the
4603 same memory location for the variable. */
4605 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4606 to copy the initial value out of the dynamic object and into the
4607 runtime process image. We need to remember the offset into the
4608 .rela.bss section we are going to use. */
4609 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4611 htab
->srelbss
->_raw_size
+= sizeof (Elf64_External_Rela
);
4612 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
4615 /* We need to figure out the alignment required for this symbol. I
4616 have no idea how ELF linkers handle this. */
4617 power_of_two
= bfd_log2 (h
->size
);
4618 if (power_of_two
> 4)
4621 /* Apply the required alignment. */
4623 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
, (bfd_size_type
) (1 << power_of_two
));
4624 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
4626 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
4630 /* Define the symbol as being at this point in the section. */
4631 h
->root
.u
.def
.section
= s
;
4632 h
->root
.u
.def
.value
= s
->_raw_size
;
4634 /* Increment the section size to make room for the symbol. */
4635 s
->_raw_size
+= h
->size
;
4640 /* If given a function descriptor symbol, hide both the function code
4641 sym and the descriptor. */
4643 ppc64_elf_hide_symbol (info
, h
, force_local
)
4644 struct bfd_link_info
*info
;
4645 struct elf_link_hash_entry
*h
;
4646 bfd_boolean force_local
;
4648 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
4650 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
4652 struct elf_link_hash_entry
*fh
= ((struct ppc_link_hash_entry
*) h
)->oh
;
4657 struct ppc_link_hash_table
*htab
;
4660 /* We aren't supposed to use alloca in BFD because on
4661 systems which do not have alloca the version in libiberty
4662 calls xmalloc, which might cause the program to crash
4663 when it runs out of memory. This function doesn't have a
4664 return status, so there's no way to gracefully return an
4665 error. So cheat. We know that string[-1] can be safely
4666 dereferenced; It's either a string in an ELF string
4667 table, or allocated in an objalloc structure. */
4669 p
= h
->root
.root
.string
- 1;
4672 htab
= ppc_hash_table (info
);
4673 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4676 /* Unfortunately, if it so happens that the string we were
4677 looking for was allocated immediately before this string,
4678 then we overwrote the string terminator. That's the only
4679 reason the lookup should fail. */
4682 q
= h
->root
.root
.string
+ strlen (h
->root
.root
.string
);
4683 while (q
>= h
->root
.root
.string
&& *q
== *p
)
4685 if (q
< h
->root
.root
.string
&& *p
== '.')
4686 fh
= elf_link_hash_lookup (&htab
->elf
, p
, FALSE
, FALSE
, FALSE
);
4690 ((struct ppc_link_hash_entry
*) h
)->oh
= fh
;
4691 ((struct ppc_link_hash_entry
*) fh
)->oh
= h
;
4695 _bfd_elf_link_hash_hide_symbol (info
, fh
, force_local
);
4700 get_sym_h (hp
, symp
, symsecp
, tls_maskp
, locsymsp
, r_symndx
, ibfd
)
4701 struct elf_link_hash_entry
**hp
;
4702 Elf_Internal_Sym
**symp
;
4705 Elf_Internal_Sym
**locsymsp
;
4706 unsigned long r_symndx
;
4709 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4711 if (r_symndx
>= symtab_hdr
->sh_info
)
4713 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (ibfd
);
4714 struct elf_link_hash_entry
*h
;
4716 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4717 while (h
->root
.type
== bfd_link_hash_indirect
4718 || h
->root
.type
== bfd_link_hash_warning
)
4719 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4727 if (symsecp
!= NULL
)
4729 asection
*symsec
= NULL
;
4730 if (h
->root
.type
== bfd_link_hash_defined
4731 || h
->root
.type
== bfd_link_hash_defweak
)
4732 symsec
= h
->root
.u
.def
.section
;
4736 if (tls_maskp
!= NULL
)
4738 struct ppc_link_hash_entry
*eh
;
4740 eh
= (struct ppc_link_hash_entry
*) h
;
4741 *tls_maskp
= &eh
->tls_mask
;
4746 Elf_Internal_Sym
*sym
;
4747 Elf_Internal_Sym
*locsyms
= *locsymsp
;
4749 if (locsyms
== NULL
)
4751 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4752 if (locsyms
== NULL
)
4753 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
4754 symtab_hdr
->sh_info
,
4755 0, NULL
, NULL
, NULL
);
4756 if (locsyms
== NULL
)
4758 *locsymsp
= locsyms
;
4760 sym
= locsyms
+ r_symndx
;
4768 if (symsecp
!= NULL
)
4770 asection
*symsec
= NULL
;
4771 if ((sym
->st_shndx
!= SHN_UNDEF
4772 && sym
->st_shndx
< SHN_LORESERVE
)
4773 || sym
->st_shndx
> SHN_HIRESERVE
)
4774 symsec
= bfd_section_from_elf_index (ibfd
, sym
->st_shndx
);
4778 if (tls_maskp
!= NULL
)
4780 struct got_entry
**lgot_ents
;
4784 lgot_ents
= elf_local_got_ents (ibfd
);
4785 if (lgot_ents
!= NULL
)
4787 char *lgot_masks
= (char *) (lgot_ents
+ symtab_hdr
->sh_info
);
4788 tls_mask
= &lgot_masks
[r_symndx
];
4790 *tls_maskp
= tls_mask
;
4796 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4797 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4798 type suitable for optimization, and 1 otherwise. */
4801 get_tls_mask (tls_maskp
, locsymsp
, rel
, ibfd
)
4803 Elf_Internal_Sym
**locsymsp
;
4804 const Elf_Internal_Rela
*rel
;
4807 unsigned long r_symndx
;
4808 unsigned int next_r
;
4809 struct elf_link_hash_entry
*h
;
4810 Elf_Internal_Sym
*sym
;
4814 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4815 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4818 if ((*tls_maskp
!= NULL
&& **tls_maskp
!= 0)
4820 || ppc64_elf_section_data (sec
)->t_symndx
== NULL
)
4823 /* Look inside a TOC section too. */
4826 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
4827 off
= h
->root
.u
.def
.value
;
4830 off
= sym
->st_value
;
4831 off
+= rel
->r_addend
;
4832 BFD_ASSERT (off
% 8 == 0);
4833 r_symndx
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8];
4834 next_r
= ppc64_elf_section_data (sec
)->t_symndx
[off
/ 8 + 1];
4835 if (!get_sym_h (&h
, &sym
, &sec
, tls_maskp
, locsymsp
, r_symndx
, ibfd
))
4838 || h
->root
.type
== bfd_link_hash_defined
4839 || h
->root
.type
== bfd_link_hash_defweak
)
4841 if (next_r
== (unsigned) -1)
4843 if (next_r
== (unsigned) -2
4845 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
4852 ppc64_elf_edit_opd (obfd
, info
)
4854 struct bfd_link_info
*info
;
4858 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
4861 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
4862 Elf_Internal_Shdr
*symtab_hdr
;
4863 Elf_Internal_Sym
*local_syms
;
4864 struct elf_link_hash_entry
**sym_hashes
;
4868 bfd_boolean need_edit
;
4870 sec
= bfd_get_section_by_name (ibfd
, ".opd");
4874 amt
= sec
->_raw_size
* sizeof (long) / 24;
4875 adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
4878 /* Must be a ld -r link. ie. check_relocs hasn't been
4880 adjust
= (long *) bfd_zalloc (obfd
, amt
);
4881 ppc64_elf_section_data (sec
)->opd
.adjust
= adjust
;
4883 memset (adjust
, 0, (size_t) amt
);
4885 if (sec
->output_section
== bfd_abs_section_ptr
)
4888 /* Look through the section relocs. */
4889 if ((sec
->flags
& SEC_RELOC
) == 0 || sec
->reloc_count
== 0)
4893 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4894 sym_hashes
= elf_sym_hashes (ibfd
);
4896 /* Read the relocations. */
4897 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
4898 (Elf_Internal_Rela
*) NULL
,
4900 if (relstart
== NULL
)
4903 /* First run through the relocs to check they are sane, and to
4904 determine whether we need to edit this opd section. */
4907 relend
= relstart
+ sec
->reloc_count
;
4908 for (rel
= relstart
; rel
< relend
; rel
++)
4910 enum elf_ppc64_reloc_type r_type
;
4911 unsigned long r_symndx
;
4913 struct elf_link_hash_entry
*h
;
4914 Elf_Internal_Sym
*sym
;
4916 /* .opd contains a regular array of 24 byte entries. We're
4917 only interested in the reloc pointing to a function entry
4919 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
4920 if (r_type
== R_PPC64_TOC
)
4923 if (r_type
!= R_PPC64_ADDR64
)
4925 (*_bfd_error_handler
)
4926 (_("%s: unexpected reloc type %u in .opd section"),
4927 bfd_archive_filename (ibfd
), r_type
);
4932 if (rel
+ 1 >= relend
)
4934 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE ((rel
+ 1)->r_info
);
4935 if (r_type
!= R_PPC64_TOC
)
4938 if (rel
->r_offset
!= offset
)
4940 /* If someone messes with .opd alignment then after a
4941 "ld -r" we might have padding in the middle of .opd.
4942 Also, there's nothing to prevent someone putting
4943 something silly in .opd with the assembler. No .opd
4944 optimization for them! */
4945 (*_bfd_error_handler
)
4946 (_("%s: .opd is not a regular array of opd entries"),
4947 bfd_archive_filename (ibfd
));
4952 r_symndx
= ELF64_R_SYM (rel
->r_info
);
4953 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
4955 goto error_free_rel
;
4957 if (sym_sec
== NULL
|| sym_sec
->owner
== NULL
)
4959 const char *sym_name
;
4961 sym_name
= h
->root
.root
.string
;
4963 sym_name
= bfd_elf_local_sym_name (ibfd
, sym
);
4965 (*_bfd_error_handler
)
4966 (_("%s: undefined sym `%s' in .opd section"),
4967 bfd_archive_filename (ibfd
),
4973 /* opd entries are always for functions defined in the
4974 current input bfd. If the symbol isn't defined in the
4975 input bfd, then we won't be using the function in this
4976 bfd; It must be defined in a linkonce section in another
4977 bfd, or is weak. It's also possible that we are
4978 discarding the function due to a linker script /DISCARD/,
4979 which we test for via the output_section. */
4980 if (sym_sec
->owner
!= ibfd
4981 || sym_sec
->output_section
== bfd_abs_section_ptr
)
4989 Elf_Internal_Rela
*write_rel
;
4990 bfd_byte
*rptr
, *wptr
;
4993 /* This seems a waste of time as input .opd sections are all
4994 zeros as generated by gcc, but I suppose there's no reason
4995 this will always be so. We might start putting something in
4996 the third word of .opd entries. */
4997 if ((sec
->flags
& SEC_IN_MEMORY
) == 0)
4999 bfd_byte
*loc
= bfd_alloc (ibfd
, sec
->_raw_size
);
5001 || !bfd_get_section_contents (ibfd
, sec
, loc
, (bfd_vma
) 0,
5004 if (local_syms
!= NULL
5005 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5008 if (elf_section_data (sec
)->relocs
!= relstart
)
5012 sec
->contents
= loc
;
5013 sec
->flags
|= (SEC_IN_MEMORY
| SEC_HAS_CONTENTS
);
5016 elf_section_data (sec
)->relocs
= relstart
;
5018 wptr
= sec
->contents
;
5019 rptr
= sec
->contents
;
5020 write_rel
= relstart
;
5023 for (rel
= relstart
; rel
< relend
; rel
++)
5025 if (rel
->r_offset
== offset
)
5027 unsigned long r_symndx
;
5029 struct elf_link_hash_entry
*h
;
5030 Elf_Internal_Sym
*sym
;
5032 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5033 get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
5036 skip
= (sym_sec
->owner
!= ibfd
5037 || sym_sec
->output_section
== bfd_abs_section_ptr
);
5040 if (h
!= NULL
&& sym_sec
->owner
== ibfd
)
5042 /* Arrange for the function descriptor sym
5044 struct ppc_link_hash_entry
*fdh
;
5045 struct ppc_link_hash_entry
*fh
;
5047 fh
= (struct ppc_link_hash_entry
*) h
;
5048 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5051 const char *fd_name
;
5052 struct ppc_link_hash_table
*htab
;
5054 fd_name
= h
->root
.root
.string
+ 1;
5055 htab
= ppc_hash_table (info
);
5056 fdh
= (struct ppc_link_hash_entry
*)
5057 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5058 FALSE
, FALSE
, FALSE
);
5059 fdh
->is_func_descriptor
= 1;
5065 fdh
->elf
.root
.u
.def
.value
= 0;
5066 fdh
->elf
.root
.u
.def
.section
= sym_sec
;
5071 /* We'll be keeping this opd entry. */
5075 /* Redefine the function descriptor symbol
5076 to this location in the opd section.
5077 We've checked above that opd relocs are
5079 struct ppc_link_hash_entry
*fdh
;
5080 struct ppc_link_hash_entry
*fh
;
5082 fh
= (struct ppc_link_hash_entry
*) h
;
5083 fdh
= (struct ppc_link_hash_entry
*) fh
->oh
;
5086 const char *fd_name
;
5087 struct ppc_link_hash_table
*htab
;
5089 fd_name
= h
->root
.root
.string
+ 1;
5090 htab
= ppc_hash_table (info
);
5091 fdh
= (struct ppc_link_hash_entry
*)
5092 elf_link_hash_lookup (&htab
->elf
, fd_name
,
5093 FALSE
, FALSE
, FALSE
);
5094 fdh
->is_func_descriptor
= 1;
5100 fdh
->elf
.root
.u
.def
.value
= wptr
- sec
->contents
;
5104 /* Local syms are a bit tricky. We could
5105 tweak them as they can be cached, but
5106 we'd need to look through the local syms
5107 for the function descriptor sym which we
5108 don't have at the moment. So keep an
5109 array of adjustments. */
5110 adjust
[rel
->r_offset
/ 24] = wptr
- rptr
;
5114 memcpy (wptr
, rptr
, 24);
5121 /* We need to adjust any reloc offsets to point to the
5122 new opd entries. While we're at it, we may as well
5123 remove redundant relocs. */
5126 rel
->r_offset
+= wptr
- rptr
;
5127 if (write_rel
!= rel
)
5128 memcpy (write_rel
, rel
, sizeof (*rel
));
5133 sec
->_cooked_size
= wptr
- sec
->contents
;
5134 sec
->reloc_count
= write_rel
- relstart
;
5135 /* Fudge the size too, as this is used later in
5136 elf_bfd_final_link if we are emitting relocs. */
5137 elf_section_data (sec
)->rel_hdr
.sh_size
5138 = sec
->reloc_count
* elf_section_data (sec
)->rel_hdr
.sh_entsize
;
5139 BFD_ASSERT (elf_section_data (sec
)->rel_hdr2
== NULL
);
5141 else if (elf_section_data (sec
)->relocs
!= relstart
)
5144 if (local_syms
!= NULL
5145 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
5147 if (!info
->keep_memory
)
5150 symtab_hdr
->contents
= (unsigned char *) local_syms
;
5157 /* Set htab->tls_sec. */
5160 ppc64_elf_tls_setup (obfd
, info
)
5162 struct bfd_link_info
*info
;
5165 struct ppc_link_hash_table
*htab
;
5167 for (tls
= obfd
->sections
; tls
!= NULL
; tls
= tls
->next
)
5168 if ((tls
->flags
& (SEC_THREAD_LOCAL
| SEC_LOAD
))
5169 == (SEC_THREAD_LOCAL
| SEC_LOAD
))
5172 htab
= ppc_hash_table (info
);
5173 htab
->tls_sec
= tls
;
5177 /* Run through all the TLS relocs looking for optimization
5178 opportunities. The linker has been hacked (see ppc64elf.em) to do
5179 a preliminary section layout so that we know the TLS segment
5180 offsets. We can't optimize earlier because some optimizations need
5181 to know the tp offset, and we need to optimize before allocating
5182 dynamic relocations. */
5185 ppc64_elf_tls_optimize (obfd
, info
)
5186 bfd
*obfd ATTRIBUTE_UNUSED
;
5187 struct bfd_link_info
*info
;
5191 struct ppc_link_hash_table
*htab
;
5193 if (info
->relocateable
|| info
->shared
)
5196 htab
= ppc_hash_table (info
);
5197 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5199 Elf_Internal_Sym
*locsyms
= NULL
;
5201 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5202 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
5204 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
5205 int expecting_tls_get_addr
;
5207 /* Read the relocations. */
5208 relstart
= _bfd_elf64_link_read_relocs (ibfd
, sec
, (PTR
) NULL
,
5209 (Elf_Internal_Rela
*) NULL
,
5211 if (relstart
== NULL
)
5214 expecting_tls_get_addr
= 0;
5215 relend
= relstart
+ sec
->reloc_count
;
5216 for (rel
= relstart
; rel
< relend
; rel
++)
5218 enum elf_ppc64_reloc_type r_type
;
5219 unsigned long r_symndx
;
5220 struct elf_link_hash_entry
*h
;
5221 Elf_Internal_Sym
*sym
;
5224 char tls_set
, tls_clear
, tls_type
= 0;
5226 bfd_boolean ok_tprel
, is_local
;
5228 r_symndx
= ELF64_R_SYM (rel
->r_info
);
5229 if (!get_sym_h (&h
, &sym
, &sym_sec
, &tls_mask
, &locsyms
,
5233 if (elf_section_data (sec
)->relocs
!= relstart
)
5236 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5237 != (unsigned char *) locsyms
))
5244 if (h
->root
.type
!= bfd_link_hash_defined
5245 && h
->root
.type
!= bfd_link_hash_defweak
)
5247 value
= h
->root
.u
.def
.value
;
5250 value
= sym
->st_value
;
5255 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
5258 value
+= sym_sec
->output_offset
;
5259 value
+= sym_sec
->output_section
->vma
;
5260 value
-= htab
->tls_sec
->vma
;
5261 ok_tprel
= (value
+ TP_OFFSET
+ ((bfd_vma
) 1 << 31)
5262 < (bfd_vma
) 1 << 32);
5266 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
5269 case R_PPC64_GOT_TLSLD16
:
5270 case R_PPC64_GOT_TLSLD16_LO
:
5271 case R_PPC64_GOT_TLSLD16_HI
:
5272 case R_PPC64_GOT_TLSLD16_HA
:
5273 /* These relocs should never be against a symbol
5274 defined in a shared lib. Leave them alone if
5275 that turns out to be the case. */
5279 htab
->tlsld_got
.refcount
-= 1;
5283 tls_type
= TLS_TLS
| TLS_LD
;
5284 expecting_tls_get_addr
= 1;
5287 case R_PPC64_GOT_TLSGD16
:
5288 case R_PPC64_GOT_TLSGD16_LO
:
5289 case R_PPC64_GOT_TLSGD16_HI
:
5290 case R_PPC64_GOT_TLSGD16_HA
:
5296 tls_set
= TLS_TLS
| TLS_TPRELGD
;
5298 tls_type
= TLS_TLS
| TLS_GD
;
5299 expecting_tls_get_addr
= 1;
5302 case R_PPC64_GOT_TPREL16_DS
:
5303 case R_PPC64_GOT_TPREL16_LO_DS
:
5304 case R_PPC64_GOT_TPREL16_HI
:
5305 case R_PPC64_GOT_TPREL16_HA
:
5306 expecting_tls_get_addr
= 0;
5311 tls_clear
= TLS_TPREL
;
5312 tls_type
= TLS_TLS
| TLS_TPREL
;
5319 case R_PPC64_REL14_BRTAKEN
:
5320 case R_PPC64_REL14_BRNTAKEN
:
5323 && h
== htab
->tls_get_addr
)
5325 if (!expecting_tls_get_addr
5327 && ((ELF64_R_TYPE (rel
[-1].r_info
)
5329 || (ELF64_R_TYPE (rel
[-1].r_info
)
5330 == R_PPC64_TOC16_LO
)))
5332 /* Check for toc tls entries. */
5336 retval
= get_tls_mask (&toc_tls
, &locsyms
,
5340 if (toc_tls
!= NULL
)
5341 expecting_tls_get_addr
= retval
> 1;
5344 if (expecting_tls_get_addr
)
5346 struct plt_entry
*ent
;
5347 for (ent
= h
->plt
.plist
; ent
; ent
= ent
->next
)
5348 if (ent
->addend
== 0)
5350 if (ent
->plt
.refcount
> 0)
5351 ent
->plt
.refcount
-= 1;
5356 expecting_tls_get_addr
= 0;
5359 case R_PPC64_TPREL64
:
5360 expecting_tls_get_addr
= 0;
5364 tls_set
= TLS_EXPLICIT
;
5365 tls_clear
= TLS_TPREL
;
5371 case R_PPC64_DTPMOD64
:
5372 expecting_tls_get_addr
= 0;
5373 if (rel
+ 1 < relend
5375 == ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
))
5376 && rel
[1].r_offset
== rel
->r_offset
+ 8)
5380 tls_set
= TLS_EXPLICIT
| TLS_GD
;
5383 tls_set
= TLS_EXPLICIT
| TLS_GD
| TLS_TPRELGD
;
5392 tls_set
= TLS_EXPLICIT
;
5398 expecting_tls_get_addr
= 0;
5402 if ((tls_set
& TLS_EXPLICIT
) == 0)
5404 struct got_entry
*ent
;
5406 /* Adjust got entry for this reloc. */
5410 ent
= elf_local_got_ents (ibfd
)[r_symndx
];
5412 for (; ent
!= NULL
; ent
= ent
->next
)
5413 if (ent
->addend
== rel
->r_addend
5414 && ent
->tls_type
== tls_type
)
5421 /* We managed to get rid of a got entry. */
5422 if (ent
->got
.refcount
> 0)
5423 ent
->got
.refcount
-= 1;
5428 struct ppc_link_hash_entry
* eh
;
5429 struct ppc_dyn_relocs
**pp
;
5430 struct ppc_dyn_relocs
*p
;
5432 /* Adjust dynamic relocs. */
5433 eh
= (struct ppc_link_hash_entry
*) h
;
5434 for (pp
= &eh
->dyn_relocs
;
5439 /* If we got rid of a DTPMOD/DTPREL reloc
5440 pair then we'll lose one or two dyn
5442 if (tls_set
== (TLS_EXPLICIT
| TLS_GD
))
5451 *tls_mask
|= tls_set
;
5452 *tls_mask
&= ~tls_clear
;
5455 if (elf_section_data (sec
)->relocs
!= relstart
)
5460 && (elf_tdata (ibfd
)->symtab_hdr
.contents
5461 != (unsigned char *) locsyms
))
5463 if (!info
->keep_memory
)
5466 elf_tdata (ibfd
)->symtab_hdr
.contents
= (unsigned char *) locsyms
;
5472 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5473 will be called from elflink.h. If elflink.h doesn't call our
5474 finish_dynamic_symbol routine, we'll need to do something about
5475 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5476 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
5478 && ((INFO)->shared \
5479 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5480 && ((H)->dynindx != -1 \
5481 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5483 /* Allocate space in .plt, .got and associated reloc sections for
5487 allocate_dynrelocs (h
, inf
)
5488 struct elf_link_hash_entry
*h
;
5491 struct bfd_link_info
*info
;
5492 struct ppc_link_hash_table
*htab
;
5494 struct ppc_link_hash_entry
*eh
;
5495 struct ppc_dyn_relocs
*p
;
5496 struct got_entry
*gent
;
5498 if (h
->root
.type
== bfd_link_hash_indirect
)
5501 if (h
->root
.type
== bfd_link_hash_warning
)
5502 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5504 info
= (struct bfd_link_info
*) inf
;
5505 htab
= ppc_hash_table (info
);
5507 if (htab
->elf
.dynamic_sections_created
5509 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
, h
))
5511 struct plt_entry
*pent
;
5512 bfd_boolean doneone
= FALSE
;
5513 for (pent
= h
->plt
.plist
; pent
!= NULL
; pent
= pent
->next
)
5514 if (pent
->plt
.refcount
> 0)
5516 BFD_ASSERT (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
);
5518 /* If this is the first .plt entry, make room for the special
5521 if (s
->_raw_size
== 0)
5522 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
5524 pent
->plt
.offset
= s
->_raw_size
;
5526 /* Make room for this entry. */
5527 s
->_raw_size
+= PLT_ENTRY_SIZE
;
5529 /* Make room for the .glink code. */
5531 if (s
->_raw_size
== 0)
5532 s
->_raw_size
+= GLINK_CALL_STUB_SIZE
;
5533 /* We need bigger stubs past index 32767. */
5534 if (s
->_raw_size
>= GLINK_CALL_STUB_SIZE
+ 32768*2*4)
5536 s
->_raw_size
+= 2*4;
5538 /* We also need to make an entry in the .rela.plt section. */
5540 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
5544 pent
->plt
.offset
= (bfd_vma
) -1;
5547 h
->plt
.plist
= NULL
;
5548 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5553 h
->plt
.plist
= NULL
;
5554 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
5557 eh
= (struct ppc_link_hash_entry
*) h
;
5558 /* Run through the TLS GD got entries first if we're changing them
5560 if ((eh
->tls_mask
& TLS_TPRELGD
) != 0)
5561 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5562 if (gent
->got
.refcount
> 0
5563 && (gent
->tls_type
& TLS_GD
) != 0)
5565 /* This was a GD entry that has been converted to TPREL. If
5566 there happens to be a TPREL entry we can use that one. */
5567 struct got_entry
*ent
;
5568 for (ent
= h
->got
.glist
; ent
!= NULL
; ent
= ent
->next
)
5569 if (ent
->got
.refcount
> 0
5570 && (ent
->tls_type
& TLS_TPREL
) != 0
5571 && ent
->addend
== gent
->addend
)
5573 gent
->got
.refcount
= 0;
5577 /* If not, then we'll be using our own TPREL entry. */
5578 if (gent
->got
.refcount
!= 0)
5579 gent
->tls_type
= TLS_TLS
| TLS_TPREL
;
5582 for (gent
= h
->got
.glist
; gent
!= NULL
; gent
= gent
->next
)
5583 if (gent
->got
.refcount
> 0)
5587 /* Make sure this symbol is output as a dynamic symbol.
5588 Undefined weak syms won't yet be marked as dynamic,
5589 nor will all TLS symbols. */
5590 if (h
->dynindx
== -1
5591 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5593 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5597 if ((gent
->tls_type
& TLS_LD
) != 0)
5599 gent
->got
.offset
= htab
->tlsld_got
.offset
;
5604 gent
->got
.offset
= s
->_raw_size
;
5605 s
->_raw_size
+= (gent
->tls_type
& eh
->tls_mask
& TLS_GD
) ? 16 : 8;
5606 dyn
= htab
->elf
.dynamic_sections_created
;
5607 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
))
5608 htab
->srelgot
->_raw_size
5609 += (gent
->tls_type
& eh
->tls_mask
& TLS_GD
5610 ? 2 * sizeof (Elf64_External_Rela
)
5611 : sizeof (Elf64_External_Rela
));
5614 gent
->got
.offset
= (bfd_vma
) -1;
5616 if (eh
->dyn_relocs
== NULL
)
5619 /* In the shared -Bsymbolic case, discard space allocated for
5620 dynamic pc-relative relocs against symbols which turn out to be
5621 defined in regular objects. For the normal shared case, discard
5622 space for relocs that have become local due to symbol visibility
5627 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) != 0
5628 && ((h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) != 0
5631 struct ppc_dyn_relocs
**pp
;
5633 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
5635 p
->count
-= p
->pc_count
;
5646 /* For the non-shared case, discard space for relocs against
5647 symbols which turn out to need copy relocs or are not
5650 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
5651 && (((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
5652 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
5653 || (htab
->elf
.dynamic_sections_created
5654 && (h
->root
.type
== bfd_link_hash_undefweak
5655 || h
->root
.type
== bfd_link_hash_undefined
))))
5657 /* Make sure this symbol is output as a dynamic symbol.
5658 Undefined weak syms won't yet be marked as dynamic. */
5659 if (h
->dynindx
== -1
5660 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
5662 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
5666 /* If that succeeded, we know we'll be keeping all the
5668 if (h
->dynindx
!= -1)
5672 eh
->dyn_relocs
= NULL
;
5677 /* Finally, allocate space. */
5678 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5680 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
5681 sreloc
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5687 /* Find any dynamic relocs that apply to read-only sections. */
5690 readonly_dynrelocs (h
, inf
)
5691 struct elf_link_hash_entry
*h
;
5694 struct ppc_link_hash_entry
*eh
;
5695 struct ppc_dyn_relocs
*p
;
5697 if (h
->root
.type
== bfd_link_hash_warning
)
5698 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5700 eh
= (struct ppc_link_hash_entry
*) h
;
5701 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
5703 asection
*s
= p
->sec
->output_section
;
5705 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
5707 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
5709 info
->flags
|= DF_TEXTREL
;
5711 /* Not an error, just cut short the traversal. */
5718 /* Set the sizes of the dynamic sections. */
5721 ppc64_elf_size_dynamic_sections (output_bfd
, info
)
5722 bfd
*output_bfd ATTRIBUTE_UNUSED
;
5723 struct bfd_link_info
*info
;
5725 struct ppc_link_hash_table
*htab
;
5731 htab
= ppc_hash_table (info
);
5732 dynobj
= htab
->elf
.dynobj
;
5736 if (htab
->elf
.dynamic_sections_created
)
5738 /* Set the contents of the .interp section to the interpreter. */
5741 s
= bfd_get_section_by_name (dynobj
, ".interp");
5744 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
5745 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
5749 if (htab
->tlsld_got
.refcount
> 0)
5751 htab
->tlsld_got
.offset
= htab
->sgot
->_raw_size
;
5752 htab
->sgot
->_raw_size
+= 16;
5754 htab
->srelgot
->_raw_size
+= sizeof (Elf64_External_Rela
);
5757 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
5759 /* Set up .got offsets for local syms, and space for local dynamic
5761 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
5763 struct got_entry
**lgot_ents
;
5764 struct got_entry
**end_lgot_ents
;
5766 bfd_size_type locsymcount
;
5767 Elf_Internal_Shdr
*symtab_hdr
;
5770 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
5773 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
5775 struct ppc_dyn_relocs
*p
;
5777 for (p
= *((struct ppc_dyn_relocs
**)
5778 &elf_section_data (s
)->local_dynrel
);
5782 if (!bfd_is_abs_section (p
->sec
)
5783 && bfd_is_abs_section (p
->sec
->output_section
))
5785 /* Input section has been discarded, either because
5786 it is a copy of a linkonce section or due to
5787 linker script /DISCARD/, so we'll be discarding
5790 else if (p
->count
!= 0)
5792 srel
= elf_section_data (p
->sec
)->sreloc
;
5793 srel
->_raw_size
+= p
->count
* sizeof (Elf64_External_Rela
);
5794 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
5795 info
->flags
|= DF_TEXTREL
;
5800 lgot_ents
= elf_local_got_ents (ibfd
);
5804 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
5805 locsymcount
= symtab_hdr
->sh_info
;
5806 end_lgot_ents
= lgot_ents
+ locsymcount
;
5807 lgot_masks
= (char *) end_lgot_ents
;
5809 srel
= htab
->srelgot
;
5810 for (; lgot_ents
< end_lgot_ents
; ++lgot_ents
, ++lgot_masks
)
5812 struct got_entry
*ent
;
5814 for (ent
= *lgot_ents
; ent
!= NULL
; ent
= ent
->next
)
5815 if (ent
->got
.refcount
> 0)
5817 if ((ent
->tls_type
& *lgot_masks
& TLS_LD
) != 0)
5819 if (htab
->tlsld_got
.offset
== (bfd_vma
) -1)
5821 htab
->tlsld_got
.offset
= s
->_raw_size
;
5824 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5826 ent
->got
.offset
= htab
->tlsld_got
.offset
;
5830 ent
->got
.offset
= s
->_raw_size
;
5831 if ((ent
->tls_type
& *lgot_masks
& TLS_GD
) != 0)
5835 srel
->_raw_size
+= 2 * sizeof (Elf64_External_Rela
);
5841 srel
->_raw_size
+= sizeof (Elf64_External_Rela
);
5846 ent
->got
.offset
= (bfd_vma
) -1;
5850 /* Allocate global sym .plt and .got entries, and space for global
5851 sym dynamic relocs. */
5852 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
5854 /* We now have determined the sizes of the various dynamic sections.
5855 Allocate memory for them. */
5857 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
5859 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
5862 /* Reset _cooked_size since prelim layout will set it wrongly,
5863 and a non-zero _cooked_size sticks. */
5864 s
->_cooked_size
= 0;
5866 if (s
== htab
->sbrlt
|| s
== htab
->srelbrlt
)
5867 /* These haven't been allocated yet; don't strip. */
5869 else if (s
== htab
->splt
5871 || s
== htab
->sglink
)
5873 /* Strip this section if we don't need it; see the
5876 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
5878 if (s
->_raw_size
== 0)
5880 /* If we don't need this section, strip it from the
5881 output file. This is mostly to handle .rela.bss and
5882 .rela.plt. We must create both sections in
5883 create_dynamic_sections, because they must be created
5884 before the linker maps input sections to output
5885 sections. The linker does that before
5886 adjust_dynamic_symbol is called, and it is that
5887 function which decides whether anything needs to go
5888 into these sections. */
5892 if (s
!= htab
->srelplt
)
5895 /* We use the reloc_count field as a counter if we need
5896 to copy relocs into the output file. */
5902 /* It's not one of our sections, so don't allocate space. */
5906 if (s
->_raw_size
== 0)
5908 _bfd_strip_section_from_output (info
, s
);
5912 /* .plt is in the bss section. We don't initialise it. */
5913 if ((s
->flags
& SEC_LOAD
) == 0)
5916 /* Allocate memory for the section contents. We use bfd_zalloc
5917 here in case unused entries are not reclaimed before the
5918 section's contents are written out. This should not happen,
5919 but this way if it does we get a R_PPC64_NONE reloc in .rela
5920 sections instead of garbage.
5921 We also rely on the section contents being zero when writing
5923 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->_raw_size
);
5924 if (s
->contents
== NULL
)
5928 if (htab
->elf
.dynamic_sections_created
)
5930 /* Add some entries to the .dynamic section. We fill in the
5931 values later, in ppc64_elf_finish_dynamic_sections, but we
5932 must add the entries now so that we get the correct size for
5933 the .dynamic section. The DT_DEBUG entry is filled in by the
5934 dynamic linker and used by the debugger. */
5935 #define add_dynamic_entry(TAG, VAL) \
5936 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5940 if (!add_dynamic_entry (DT_DEBUG
, 0))
5944 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
5946 if (!add_dynamic_entry (DT_PLTGOT
, 0)
5947 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
5948 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
5949 || !add_dynamic_entry (DT_JMPREL
, 0)
5950 || !add_dynamic_entry (DT_PPC64_GLINK
, 0))
5956 if (!add_dynamic_entry (DT_PPC64_OPD
, 0)
5957 || !add_dynamic_entry (DT_PPC64_OPDSZ
, 0))
5963 if (!add_dynamic_entry (DT_RELA
, 0)
5964 || !add_dynamic_entry (DT_RELASZ
, 0)
5965 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf64_External_Rela
)))
5968 /* If any dynamic relocs apply to a read-only section,
5969 then we need a DT_TEXTREL entry. */
5970 if ((info
->flags
& DF_TEXTREL
) == 0)
5971 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
5974 if ((info
->flags
& DF_TEXTREL
) != 0)
5976 if (!add_dynamic_entry (DT_TEXTREL
, 0))
5981 #undef add_dynamic_entry
5986 /* Determine the type of stub needed, if any, for a call. */
5988 static INLINE
enum ppc_stub_type
5989 ppc_type_of_stub (input_sec
, rel
, hash
, destination
)
5990 asection
*input_sec
;
5991 const Elf_Internal_Rela
*rel
;
5992 struct ppc_link_hash_entry
**hash
;
5993 bfd_vma destination
;
5995 struct ppc_link_hash_entry
*h
= *hash
;
5997 bfd_vma branch_offset
;
5998 bfd_vma max_branch_offset
;
5999 unsigned int r_type
;
6004 && h
->oh
->dynindx
!= -1)
6006 struct plt_entry
*ent
;
6007 for (ent
= h
->oh
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6008 if (ent
->addend
== rel
->r_addend
6009 && ent
->plt
.offset
!= (bfd_vma
) -1)
6011 *hash
= (struct ppc_link_hash_entry
*) h
->oh
;
6012 return ppc_stub_plt_call
;
6016 if (h
->elf
.root
.type
== bfd_link_hash_undefweak
6017 || h
->elf
.root
.type
== bfd_link_hash_undefined
)
6018 return ppc_stub_none
;
6021 /* Determine where the call point is. */
6022 location
= (input_sec
->output_offset
6023 + input_sec
->output_section
->vma
6026 branch_offset
= destination
- location
;
6027 r_type
= ELF64_R_TYPE (rel
->r_info
);
6029 /* Determine if a long branch stub is needed. */
6030 max_branch_offset
= 1 << 25;
6031 if (r_type
!= (unsigned int) R_PPC64_REL24
)
6032 max_branch_offset
= 1 << 15;
6034 if (branch_offset
+ max_branch_offset
>= 2 * max_branch_offset
)
6035 /* We need a stub. Figure out whether a long_branch or plt_branch
6037 return ppc_stub_long_branch
;
6039 return ppc_stub_none
;
6042 /* Build a .plt call stub. */
6045 build_plt_stub (obfd
, p
, offset
, glink
)
6051 #define PPC_LO(v) ((v) & 0xffff)
6052 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6053 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6056 bfd_put_32 (obfd
, LD_R2_40R1
, p
), p
+= 4;
6057 bfd_put_32 (obfd
, ADDIS_R12_R2
| PPC_HA (offset
), p
), p
+= 4;
6059 bfd_put_32 (obfd
, STD_R2_40R1
, p
), p
+= 4;
6060 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6061 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6062 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6064 bfd_put_32 (obfd
, LD_R2_0R12
| PPC_LO (offset
), p
), p
+= 4;
6065 if (PPC_HA (offset
+ 8) != PPC_HA (offset
))
6066 bfd_put_32 (obfd
, ADDIS_R12_R12_1
, p
), p
+= 4;
6068 bfd_put_32 (obfd
, MTCTR_R11
, p
), p
+= 4;
6069 bfd_put_32 (obfd
, LD_R11_0R12
| PPC_LO (offset
), p
), p
+= 4;
6070 bfd_put_32 (obfd
, BCTR
, p
), p
+= 4;
6075 ppc_build_one_stub (gen_entry
, in_arg
)
6076 struct bfd_hash_entry
*gen_entry
;
6079 struct ppc_stub_hash_entry
*stub_entry
;
6080 struct ppc_branch_hash_entry
*br_entry
;
6081 struct bfd_link_info
*info
;
6082 struct ppc_link_hash_table
*htab
;
6088 struct plt_entry
*ent
;
6092 /* Massage our args to the form they really have. */
6093 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6094 info
= (struct bfd_link_info
*) in_arg
;
6096 htab
= ppc_hash_table (info
);
6097 stub_sec
= stub_entry
->stub_sec
;
6099 /* Make a note of the offset within the stubs for this entry. */
6100 stub_entry
->stub_offset
= stub_sec
->_cooked_size
;
6101 loc
= stub_sec
->contents
+ stub_entry
->stub_offset
;
6103 stub_bfd
= stub_sec
->owner
;
6105 switch (stub_entry
->stub_type
)
6107 case ppc_stub_long_branch
:
6108 /* Branches are relative. This is where we are going to. */
6109 off
= (stub_entry
->target_value
6110 + stub_entry
->target_section
->output_offset
6111 + stub_entry
->target_section
->output_section
->vma
);
6113 /* And this is where we are coming from. */
6114 off
-= (stub_entry
->stub_offset
6115 + stub_sec
->output_offset
6116 + stub_sec
->output_section
->vma
);
6118 BFD_ASSERT (off
+ (1 << 25) < (bfd_vma
) (1 << 26));
6120 bfd_put_32 (stub_bfd
, (bfd_vma
) B_DOT
| (off
& 0x3fffffc), loc
);
6124 case ppc_stub_plt_branch
:
6125 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6126 stub_entry
->root
.string
+ 9,
6128 if (br_entry
== NULL
)
6130 (*_bfd_error_handler
) (_("can't find branch stub `%s'"),
6131 stub_entry
->root
.string
+ 9);
6132 htab
->stub_error
= TRUE
;
6136 off
= (stub_entry
->target_value
6137 + stub_entry
->target_section
->output_offset
6138 + stub_entry
->target_section
->output_section
->vma
);
6140 bfd_put_64 (htab
->sbrlt
->owner
, off
,
6141 htab
->sbrlt
->contents
+ br_entry
->offset
);
6145 /* Create a reloc for the branch lookup table entry. */
6146 Elf_Internal_Rela rela
;
6149 rela
.r_offset
= (br_entry
->offset
6150 + htab
->sbrlt
->output_offset
6151 + htab
->sbrlt
->output_section
->vma
);
6152 rela
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
6153 rela
.r_addend
= off
;
6155 loc
= htab
->srelbrlt
->contents
;
6156 loc
+= htab
->srelbrlt
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6157 bfd_elf64_swap_reloca_out (htab
->srelbrlt
->owner
, &rela
, loc
);
6160 off
= (br_entry
->offset
6161 + htab
->sbrlt
->output_offset
6162 + htab
->sbrlt
->output_section
->vma
6163 - elf_gp (htab
->sbrlt
->output_section
->owner
)
6166 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6168 (*_bfd_error_handler
)
6169 (_("linkage table error against `%s'"),
6170 stub_entry
->root
.string
);
6171 bfd_set_error (bfd_error_bad_value
);
6172 htab
->stub_error
= TRUE
;
6177 bfd_put_32 (stub_bfd
, (bfd_vma
) ADDIS_R12_R2
| PPC_HA (indx
), loc
);
6178 bfd_put_32 (stub_bfd
, (bfd_vma
) LD_R11_0R12
| PPC_LO (indx
), loc
+ 4);
6179 bfd_put_32 (stub_bfd
, (bfd_vma
) MTCTR_R11
, loc
+ 8);
6180 bfd_put_32 (stub_bfd
, (bfd_vma
) BCTR
, loc
+ 12);
6184 case ppc_stub_plt_call
:
6185 /* Do the best we can for shared libraries built without
6186 exporting ".foo" for each "foo". This can happen when symbol
6187 versioning scripts strip all bar a subset of symbols. */
6188 if (stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defined
6189 && stub_entry
->h
->oh
->root
.type
!= bfd_link_hash_defweak
)
6191 /* Point the symbol at the stub. There may be multiple stubs,
6192 we don't really care; The main thing is to make this sym
6193 defined somewhere. */
6194 stub_entry
->h
->oh
->root
.type
= bfd_link_hash_defined
;
6195 stub_entry
->h
->oh
->root
.u
.def
.section
= stub_entry
->stub_sec
;
6196 stub_entry
->h
->oh
->root
.u
.def
.value
= stub_entry
->stub_offset
;
6199 /* Now build the stub. */
6201 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6202 if (ent
->addend
== stub_entry
->addend
)
6204 off
= ent
->plt
.offset
;
6207 if (off
>= (bfd_vma
) -2)
6210 off
&= ~ (bfd_vma
) 1;
6211 off
+= (htab
->splt
->output_offset
6212 + htab
->splt
->output_section
->vma
6213 - elf_gp (htab
->splt
->output_section
->owner
)
6216 if (off
+ 0x80000000 > 0xffffffff || (off
& 7) != 0)
6218 (*_bfd_error_handler
)
6219 (_("linkage table error against `%s'"),
6220 stub_entry
->h
->elf
.root
.root
.string
);
6221 bfd_set_error (bfd_error_bad_value
);
6222 htab
->stub_error
= TRUE
;
6226 p
= build_plt_stub (stub_bfd
, loc
, (int) off
, 0);
6235 stub_sec
->_cooked_size
+= size
;
6239 /* As above, but don't actually build the stub. Just bump offset so
6240 we know stub section sizes, and select plt_branch stubs where
6241 long_branch stubs won't do. */
6244 ppc_size_one_stub (gen_entry
, in_arg
)
6245 struct bfd_hash_entry
*gen_entry
;
6248 struct ppc_stub_hash_entry
*stub_entry
;
6249 struct ppc_link_hash_table
*htab
;
6253 /* Massage our args to the form they really have. */
6254 stub_entry
= (struct ppc_stub_hash_entry
*) gen_entry
;
6255 htab
= (struct ppc_link_hash_table
*) in_arg
;
6257 if (stub_entry
->stub_type
== ppc_stub_plt_call
)
6259 struct plt_entry
*ent
;
6260 for (ent
= stub_entry
->h
->elf
.plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
6261 if (ent
->addend
== stub_entry
->addend
)
6263 off
= ent
->plt
.offset
& ~(bfd_vma
) 1;
6268 off
+= (htab
->splt
->output_offset
6269 + htab
->splt
->output_section
->vma
6270 - elf_gp (htab
->splt
->output_section
->owner
)
6274 if (PPC_HA ((int) off
+ 16) != PPC_HA ((int) off
))
6279 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6280 stub_entry
->stub_type
= ppc_stub_long_branch
;
6283 off
= (stub_entry
->target_value
6284 + stub_entry
->target_section
->output_offset
6285 + stub_entry
->target_section
->output_section
->vma
);
6286 off
-= (stub_entry
->stub_sec
->_raw_size
6287 + stub_entry
->stub_sec
->output_offset
6288 + stub_entry
->stub_sec
->output_section
->vma
);
6290 if (off
+ (1 << 25) >= (bfd_vma
) (1 << 26))
6292 struct ppc_branch_hash_entry
*br_entry
;
6294 br_entry
= ppc_branch_hash_lookup (&htab
->branch_hash_table
,
6295 stub_entry
->root
.string
+ 9,
6297 if (br_entry
== NULL
)
6299 (*_bfd_error_handler
) (_("can't build branch stub `%s'"),
6300 stub_entry
->root
.string
+ 9);
6301 htab
->stub_error
= TRUE
;
6305 if (br_entry
->iter
!= htab
->stub_iteration
)
6307 br_entry
->iter
= htab
->stub_iteration
;
6308 br_entry
->offset
= htab
->sbrlt
->_raw_size
;
6309 htab
->sbrlt
->_raw_size
+= 8;
6311 stub_entry
->stub_type
= ppc_stub_plt_branch
;
6316 stub_entry
->stub_sec
->_raw_size
+= size
;
6320 /* Set up various things so that we can make a list of input sections
6321 for each output section included in the link. Returns -1 on error,
6322 0 when no stubs will be needed, and 1 on success. */
6325 ppc64_elf_setup_section_lists (output_bfd
, info
)
6327 struct bfd_link_info
*info
;
6330 int top_id
, top_index
;
6332 asection
**input_list
, **list
;
6334 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6336 if (htab
->elf
.root
.creator
->flavour
!= bfd_target_elf_flavour
6337 || htab
->sbrlt
== NULL
)
6340 /* Find the top input section id. */
6341 for (input_bfd
= info
->input_bfds
, top_id
= 0;
6343 input_bfd
= input_bfd
->link_next
)
6345 for (section
= input_bfd
->sections
;
6347 section
= section
->next
)
6349 if (top_id
< section
->id
)
6350 top_id
= section
->id
;
6354 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
6355 htab
->stub_group
= (struct map_stub
*) bfd_zmalloc (amt
);
6356 if (htab
->stub_group
== NULL
)
6359 /* We can't use output_bfd->section_count here to find the top output
6360 section index as some sections may have been removed, and
6361 _bfd_strip_section_from_output doesn't renumber the indices. */
6362 for (section
= output_bfd
->sections
, top_index
= 0;
6364 section
= section
->next
)
6366 if (top_index
< section
->index
)
6367 top_index
= section
->index
;
6370 htab
->top_index
= top_index
;
6371 amt
= sizeof (asection
*) * (top_index
+ 1);
6372 input_list
= (asection
**) bfd_malloc (amt
);
6373 htab
->input_list
= input_list
;
6374 if (input_list
== NULL
)
6377 /* For sections we aren't interested in, mark their entries with a
6378 value we can check later. */
6379 list
= input_list
+ top_index
;
6381 *list
= bfd_abs_section_ptr
;
6382 while (list
-- != input_list
);
6384 for (section
= output_bfd
->sections
;
6386 section
= section
->next
)
6388 if ((section
->flags
& SEC_CODE
) != 0)
6389 input_list
[section
->index
] = NULL
;
6395 /* The linker repeatedly calls this function for each input section,
6396 in the order that input sections are linked into output sections.
6397 Build lists of input sections to determine groupings between which
6398 we may insert linker stubs. */
6401 ppc64_elf_next_input_section (info
, isec
)
6402 struct bfd_link_info
*info
;
6405 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6407 if (isec
->output_section
->index
<= htab
->top_index
)
6409 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
6410 if (*list
!= bfd_abs_section_ptr
)
6412 /* Steal the link_sec pointer for our list. */
6413 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6414 /* This happens to make the list in reverse order,
6415 which is what we want. */
6416 PREV_SEC (isec
) = *list
;
6422 /* See whether we can group stub sections together. Grouping stub
6423 sections may result in fewer stubs. More importantly, we need to
6424 put all .init* and .fini* stubs at the beginning of the .init or
6425 .fini output sections respectively, because glibc splits the
6426 _init and _fini functions into multiple parts. Putting a stub in
6427 the middle of a function is not a good idea. */
6430 group_sections (htab
, stub_group_size
, stubs_always_before_branch
)
6431 struct ppc_link_hash_table
*htab
;
6432 bfd_size_type stub_group_size
;
6433 bfd_boolean stubs_always_before_branch
;
6435 asection
**list
= htab
->input_list
+ htab
->top_index
;
6438 asection
*tail
= *list
;
6439 if (tail
== bfd_abs_section_ptr
)
6441 while (tail
!= NULL
)
6445 bfd_size_type total
;
6448 if (tail
->_cooked_size
)
6449 total
= tail
->_cooked_size
;
6451 total
= tail
->_raw_size
;
6452 while ((prev
= PREV_SEC (curr
)) != NULL
6453 && ((total
+= curr
->output_offset
- prev
->output_offset
)
6457 /* OK, the size from the start of CURR to the end is less
6458 than stub_group_size and thus can be handled by one stub
6459 section. (or the tail section is itself larger than
6460 stub_group_size, in which case we may be toast.) We
6461 should really be keeping track of the total size of stubs
6462 added here, as stubs contribute to the final output
6463 section size. That's a little tricky, and this way will
6464 only break if stubs added make the total size more than
6465 2^25, ie. for the default stub_group_size, if stubs total
6466 more than 2834432 bytes, or over 100000 plt call stubs. */
6469 prev
= PREV_SEC (tail
);
6470 /* Set up this stub group. */
6471 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6473 while (tail
!= curr
&& (tail
= prev
) != NULL
);
6475 /* But wait, there's more! Input sections up to stub_group_size
6476 bytes before the stub section can be handled by it too. */
6477 if (!stubs_always_before_branch
)
6481 && ((total
+= tail
->output_offset
- prev
->output_offset
)
6485 prev
= PREV_SEC (tail
);
6486 htab
->stub_group
[tail
->id
].link_sec
= curr
;
6492 while (list
-- != htab
->input_list
);
6493 free (htab
->input_list
);
6497 /* Determine and set the size of the stub section for a final link.
6499 The basic idea here is to examine all the relocations looking for
6500 PC-relative calls to a target that is unreachable with a "bl"
6504 ppc64_elf_size_stubs (output_bfd
, stub_bfd
, info
, group_size
,
6505 add_stub_section
, layout_sections_again
)
6508 struct bfd_link_info
*info
;
6509 bfd_signed_vma group_size
;
6510 asection
* (*add_stub_section
) PARAMS ((const char *, asection
*));
6511 void (*layout_sections_again
) PARAMS ((void));
6513 bfd_size_type stub_group_size
;
6514 bfd_boolean stubs_always_before_branch
;
6515 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6517 /* Stash our params away. */
6518 htab
->stub_bfd
= stub_bfd
;
6519 htab
->add_stub_section
= add_stub_section
;
6520 htab
->layout_sections_again
= layout_sections_again
;
6521 stubs_always_before_branch
= group_size
< 0;
6523 stub_group_size
= -group_size
;
6525 stub_group_size
= group_size
;
6526 if (stub_group_size
== 1)
6528 /* Default values. */
6529 stub_group_size
= 30720000;
6530 if (htab
->has_14bit_branch
)
6531 stub_group_size
= 30000;
6534 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
6539 unsigned int bfd_indx
;
6541 bfd_boolean stub_changed
;
6543 htab
->stub_iteration
+= 1;
6544 stub_changed
= FALSE
;
6546 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
6548 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
6550 Elf_Internal_Shdr
*symtab_hdr
;
6552 Elf_Internal_Sym
*local_syms
= NULL
;
6554 /* We'll need the symbol table in a second. */
6555 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
6556 if (symtab_hdr
->sh_info
== 0)
6559 /* Walk over each section attached to the input bfd. */
6560 for (section
= input_bfd
->sections
;
6562 section
= section
->next
)
6564 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
6566 /* If there aren't any relocs, then there's nothing more
6568 if ((section
->flags
& SEC_RELOC
) == 0
6569 || section
->reloc_count
== 0)
6572 /* If this section is a link-once section that will be
6573 discarded, then don't create any stubs. */
6574 if (section
->output_section
== NULL
6575 || section
->output_section
->owner
!= output_bfd
)
6578 /* Get the relocs. */
6580 = _bfd_elf64_link_read_relocs (input_bfd
, section
, NULL
,
6581 (Elf_Internal_Rela
*) NULL
,
6583 if (internal_relocs
== NULL
)
6584 goto error_ret_free_local
;
6586 /* Now examine each relocation. */
6587 irela
= internal_relocs
;
6588 irelaend
= irela
+ section
->reloc_count
;
6589 for (; irela
< irelaend
; irela
++)
6591 unsigned int r_type
, r_indx
;
6592 enum ppc_stub_type stub_type
;
6593 struct ppc_stub_hash_entry
*stub_entry
;
6596 bfd_vma destination
;
6597 struct ppc_link_hash_entry
*hash
;
6598 struct elf_link_hash_entry
*h
;
6599 Elf_Internal_Sym
*sym
;
6601 const asection
*id_sec
;
6603 r_type
= ELF64_R_TYPE (irela
->r_info
);
6604 r_indx
= ELF64_R_SYM (irela
->r_info
);
6606 if (r_type
>= (unsigned int) R_PPC64_max
)
6608 bfd_set_error (bfd_error_bad_value
);
6609 goto error_ret_free_internal
;
6612 /* Only look for stubs on branch instructions. */
6613 if (r_type
!= (unsigned int) R_PPC64_REL24
6614 && r_type
!= (unsigned int) R_PPC64_REL14
6615 && r_type
!= (unsigned int) R_PPC64_REL14_BRTAKEN
6616 && r_type
!= (unsigned int) R_PPC64_REL14_BRNTAKEN
)
6619 /* Now determine the call target, its name, value,
6622 if (!get_sym_h (&h
, &sym
, &sym_sec
, NULL
, &local_syms
,
6624 goto error_ret_free_internal
;
6625 hash
= (struct ppc_link_hash_entry
*) h
;
6629 /* It's a local symbol. */
6630 sym_value
= sym
->st_value
;
6631 destination
= (sym_value
+ irela
->r_addend
6632 + sym_sec
->output_offset
6633 + sym_sec
->output_section
->vma
);
6637 /* It's an external symbol. */
6639 if (hash
->elf
.root
.type
== bfd_link_hash_defined
6640 || hash
->elf
.root
.type
== bfd_link_hash_defweak
)
6642 sym_value
= hash
->elf
.root
.u
.def
.value
;
6643 if (sym_sec
->output_section
!= NULL
)
6644 destination
= (sym_value
+ irela
->r_addend
6645 + sym_sec
->output_offset
6646 + sym_sec
->output_section
->vma
);
6648 else if (hash
->elf
.root
.type
== bfd_link_hash_undefweak
)
6650 else if (hash
->elf
.root
.type
== bfd_link_hash_undefined
)
6654 bfd_set_error (bfd_error_bad_value
);
6655 goto error_ret_free_internal
;
6659 /* Determine what (if any) linker stub is needed. */
6660 stub_type
= ppc_type_of_stub (section
, irela
, &hash
,
6662 if (stub_type
== ppc_stub_none
)
6665 /* __tls_get_addr calls might be eliminated. */
6666 if (stub_type
!= ppc_stub_plt_call
6668 && &hash
->elf
== htab
->tls_get_addr
6669 && section
->has_tls_reloc
6670 && irela
!= internal_relocs
)
6675 if (!get_tls_mask (&tls_mask
, &local_syms
,
6676 irela
- 1, input_bfd
))
6677 goto error_ret_free_internal
;
6682 /* Support for grouping stub sections. */
6683 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
6685 /* Get the name of this stub. */
6686 stub_name
= ppc_stub_name (id_sec
, sym_sec
, hash
, irela
);
6688 goto error_ret_free_internal
;
6690 stub_entry
= ppc_stub_hash_lookup (&htab
->stub_hash_table
,
6691 stub_name
, FALSE
, FALSE
);
6692 if (stub_entry
!= NULL
)
6694 /* The proper stub has already been created. */
6699 stub_entry
= ppc_add_stub (stub_name
, section
, htab
);
6700 if (stub_entry
== NULL
)
6703 error_ret_free_internal
:
6704 if (elf_section_data (section
)->relocs
== NULL
)
6705 free (internal_relocs
);
6706 error_ret_free_local
:
6707 if (local_syms
!= NULL
6708 && (symtab_hdr
->contents
6709 != (unsigned char *) local_syms
))
6714 stub_entry
->target_value
= sym_value
;
6715 stub_entry
->target_section
= sym_sec
;
6716 stub_entry
->stub_type
= stub_type
;
6717 stub_entry
->h
= hash
;
6718 stub_entry
->addend
= irela
->r_addend
;
6719 stub_changed
= TRUE
;
6722 /* We're done with the internal relocs, free them. */
6723 if (elf_section_data (section
)->relocs
!= internal_relocs
)
6724 free (internal_relocs
);
6727 if (local_syms
!= NULL
6728 && symtab_hdr
->contents
!= (unsigned char *) local_syms
)
6730 if (!info
->keep_memory
)
6733 symtab_hdr
->contents
= (unsigned char *) local_syms
;
6740 /* OK, we've added some stubs. Find out the new size of the
6742 for (stub_sec
= htab
->stub_bfd
->sections
;
6744 stub_sec
= stub_sec
->next
)
6746 stub_sec
->_raw_size
= 0;
6747 stub_sec
->_cooked_size
= 0;
6749 htab
->sbrlt
->_raw_size
= 0;
6750 htab
->sbrlt
->_cooked_size
= 0;
6752 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_size_one_stub
, htab
);
6754 /* Ask the linker to do its stuff. */
6755 (*htab
->layout_sections_again
) ();
6758 /* It would be nice to strip .branch_lt from the output if the
6759 section is empty, but it's too late. If we strip sections here,
6760 the dynamic symbol table is corrupted since the section symbol
6761 for the stripped section isn't written. */
6766 /* Called after we have determined section placement. If sections
6767 move, we'll be called again. Provide a value for TOCstart. */
6770 ppc64_elf_toc (obfd
)
6776 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6777 order. The TOC starts where the first of these sections starts. */
6778 s
= bfd_get_section_by_name (obfd
, ".got");
6780 s
= bfd_get_section_by_name (obfd
, ".toc");
6782 s
= bfd_get_section_by_name (obfd
, ".tocbss");
6784 s
= bfd_get_section_by_name (obfd
, ".plt");
6787 /* This may happen for
6788 o references to TOC base (SYM@toc / TOC[tc0]) without a
6791 o --gc-sections and empty TOC sections
6793 FIXME: Warn user? */
6795 /* Look for a likely section. We probably won't even be
6797 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6798 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
| SEC_READONLY
))
6799 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6802 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6803 if ((s
->flags
& (SEC_ALLOC
| SEC_SMALL_DATA
))
6804 == (SEC_ALLOC
| SEC_SMALL_DATA
))
6807 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6808 if ((s
->flags
& (SEC_ALLOC
| SEC_READONLY
)) == SEC_ALLOC
)
6811 for (s
= obfd
->sections
; s
!= NULL
; s
= s
->next
)
6812 if ((s
->flags
& SEC_ALLOC
) == SEC_ALLOC
)
6818 TOCstart
= s
->output_section
->vma
+ s
->output_offset
;
6823 /* Build all the stubs associated with the current output file.
6824 The stubs are kept in a hash table attached to the main linker
6825 hash table. This function is called via gldelf64ppc_finish. */
6828 ppc64_elf_build_stubs (info
)
6829 struct bfd_link_info
*info
;
6831 struct ppc_link_hash_table
*htab
= ppc_hash_table (info
);
6836 for (stub_sec
= htab
->stub_bfd
->sections
;
6838 stub_sec
= stub_sec
->next
)
6842 /* Allocate memory to hold the linker stubs. */
6843 size
= stub_sec
->_raw_size
;
6846 stub_sec
->contents
= (bfd_byte
*) bfd_zalloc (htab
->stub_bfd
, size
);
6847 if (stub_sec
->contents
== NULL
)
6850 stub_sec
->_cooked_size
= 0;
6853 if (htab
->splt
!= NULL
)
6857 /* Build the .glink plt call stub. */
6858 plt_r2
= (htab
->splt
->output_offset
6859 + htab
->splt
->output_section
->vma
6860 - elf_gp (htab
->splt
->output_section
->owner
)
6862 p
= htab
->sglink
->contents
;
6863 p
= build_plt_stub (htab
->sglink
->owner
, p
, (int) plt_r2
, 1);
6864 while (p
< htab
->sglink
->contents
+ GLINK_CALL_STUB_SIZE
)
6866 bfd_put_32 (htab
->sglink
->owner
, NOP
, p
);
6870 /* Build the .glink lazy link call stubs. */
6872 while (p
< htab
->sglink
->contents
+ htab
->sglink
->_raw_size
)
6876 bfd_put_32 (htab
->sglink
->owner
, LI_R0_0
| indx
, p
);
6881 bfd_put_32 (htab
->sglink
->owner
, LIS_R0_0
| PPC_HI (indx
), p
);
6883 bfd_put_32 (htab
->sglink
->owner
, ORI_R0_R0_0
| PPC_LO (indx
), p
);
6886 bfd_put_32 (htab
->sglink
->owner
,
6887 B_DOT
| ((htab
->sglink
->contents
- p
) & 0x3fffffc), p
);
6891 htab
->sglink
->_cooked_size
= p
- htab
->sglink
->contents
;
6894 if (htab
->sbrlt
->_raw_size
!= 0)
6896 htab
->sbrlt
->contents
= (bfd_byte
*) bfd_zalloc (htab
->sbrlt
->owner
,
6897 htab
->sbrlt
->_raw_size
);
6898 if (htab
->sbrlt
->contents
== NULL
)
6902 /* Build the stubs as directed by the stub hash table. */
6903 bfd_hash_traverse (&htab
->stub_hash_table
, ppc_build_one_stub
, info
);
6905 for (stub_sec
= htab
->stub_bfd
->sections
;
6907 stub_sec
= stub_sec
->next
)
6909 if (stub_sec
->_raw_size
!= stub_sec
->_cooked_size
)
6913 if (stub_sec
!= NULL
6914 || htab
->sglink
->_raw_size
!= htab
->sglink
->_cooked_size
)
6916 htab
->stub_error
= TRUE
;
6917 (*_bfd_error_handler
) (_("stubs don't match calculated size"));
6920 return !htab
->stub_error
;
6923 /* The RELOCATE_SECTION function is called by the ELF backend linker
6924 to handle the relocations for a section.
6926 The relocs are always passed as Rela structures; if the section
6927 actually uses Rel structures, the r_addend field will always be
6930 This function is responsible for adjust the section contents as
6931 necessary, and (if using Rela relocs and generating a
6932 relocateable output file) adjusting the reloc addend as
6935 This function does not have to worry about setting the reloc
6936 address or the reloc symbol index.
6938 LOCAL_SYMS is a pointer to the swapped in local symbols.
6940 LOCAL_SECTIONS is an array giving the section in the input file
6941 corresponding to the st_shndx field of each local symbol.
6943 The global hash table entry for the global symbols can be found
6944 via elf_sym_hashes (input_bfd).
6946 When generating relocateable output, this function must handle
6947 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6948 going to be the section symbol corresponding to the output
6949 section, which means that the addend must be adjusted
6953 ppc64_elf_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
6954 contents
, relocs
, local_syms
, local_sections
)
6956 struct bfd_link_info
*info
;
6958 asection
*input_section
;
6960 Elf_Internal_Rela
*relocs
;
6961 Elf_Internal_Sym
*local_syms
;
6962 asection
**local_sections
;
6964 struct ppc_link_hash_table
*htab
;
6965 Elf_Internal_Shdr
*symtab_hdr
;
6966 struct elf_link_hash_entry
**sym_hashes
;
6967 Elf_Internal_Rela
*rel
;
6968 Elf_Internal_Rela
*relend
;
6969 Elf_Internal_Rela outrel
;
6971 struct got_entry
**local_got_ents
;
6973 bfd_boolean ret
= TRUE
;
6975 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
6976 bfd_boolean is_power4
= FALSE
;
6978 if (info
->relocateable
)
6981 /* Initialize howto table if needed. */
6982 if (!ppc64_elf_howto_table
[R_PPC64_ADDR32
])
6985 htab
= ppc_hash_table (info
);
6986 if (info
->shared
&& (htab
->tlsld_got
.offset
& 1) == 0)
6988 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
6989 + htab
->sgot
->output_offset
6990 + htab
->tlsld_got
.offset
);
6991 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_DTPMOD64
);
6992 outrel
.r_addend
= 0;
6994 loc
= htab
->srelgot
->contents
;
6995 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf64_External_Rela
);
6996 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
6997 htab
->tlsld_got
.offset
|= 1;
7000 local_got_ents
= elf_local_got_ents (input_bfd
);
7001 TOCstart
= elf_gp (output_bfd
);
7002 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
7003 sym_hashes
= elf_sym_hashes (input_bfd
);
7004 is_opd
= ppc64_elf_section_data (input_section
)->opd
.adjust
!= NULL
;
7007 relend
= relocs
+ input_section
->reloc_count
;
7008 for (; rel
< relend
; rel
++)
7010 enum elf_ppc64_reloc_type r_type
;
7012 bfd_reloc_status_type r
;
7013 Elf_Internal_Sym
*sym
;
7015 struct elf_link_hash_entry
*h
;
7016 struct elf_link_hash_entry
*fdh
;
7017 const char *sym_name
;
7018 unsigned long r_symndx
;
7019 char tls_mask
, tls_gd
, tls_type
;
7021 bfd_boolean unresolved_reloc
;
7024 struct ppc_stub_hash_entry
*stub_entry
;
7025 bfd_vma max_br_offset
;
7028 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
->r_info
);
7029 r_symndx
= ELF64_R_SYM (rel
->r_info
);
7030 r
= bfd_reloc_other
;
7031 sym
= (Elf_Internal_Sym
*) 0;
7032 sec
= (asection
*) 0;
7033 h
= (struct elf_link_hash_entry
*) 0;
7034 sym_name
= (const char *) 0;
7035 unresolved_reloc
= FALSE
;
7038 if (r_type
== R_PPC64_TOC
)
7040 /* Relocation value is TOC base. Symbol is ignored. */
7041 relocation
= TOCstart
+ TOC_BASE_OFF
;
7043 else if (r_symndx
< symtab_hdr
->sh_info
)
7045 /* It's a local symbol. */
7046 sym
= local_syms
+ r_symndx
;
7047 sec
= local_sections
[r_symndx
];
7048 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
7049 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
7050 if (elf_section_data (sec
) != NULL
)
7052 long *opd_sym_adjust
;
7054 opd_sym_adjust
= ppc64_elf_section_data (sec
)->opd
.adjust
;
7055 if (opd_sym_adjust
!= NULL
&& sym
->st_value
% 24 == 0)
7056 relocation
+= opd_sym_adjust
[sym
->st_value
/ 24];
7061 /* It's a global symbol. */
7062 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7063 while (h
->root
.type
== bfd_link_hash_indirect
7064 || h
->root
.type
== bfd_link_hash_warning
)
7065 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7066 sym_name
= h
->root
.root
.string
;
7068 if (h
->root
.type
== bfd_link_hash_defined
7069 || h
->root
.type
== bfd_link_hash_defweak
)
7071 sec
= h
->root
.u
.def
.section
;
7072 if (sec
->output_section
== NULL
)
7073 /* Set a flag that will be cleared later if we find a
7074 relocation value for this symbol. output_section
7075 is typically NULL for symbols satisfied by a shared
7077 unresolved_reloc
= TRUE
;
7079 relocation
= (h
->root
.u
.def
.value
7080 + sec
->output_section
->vma
7081 + sec
->output_offset
);
7083 else if (h
->root
.type
== bfd_link_hash_undefweak
)
7085 else if (info
->shared
7086 && (!info
->symbolic
|| info
->allow_shlib_undefined
)
7087 && !info
->no_undefined
7088 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
7092 if (! ((*info
->callbacks
->undefined_symbol
)
7093 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
7094 rel
->r_offset
, (!info
->shared
7095 || info
->no_undefined
7096 || ELF_ST_VISIBILITY (h
->other
)))))
7102 /* TLS optimizations. Replace instruction sequences and relocs
7103 based on information we collected in tls_optimize. We edit
7104 RELOCS so that --emit-relocs will output something sensible
7105 for the final instruction stream. */
7108 if (IS_TLS_RELOC (r_type
))
7111 tls_mask
= ((struct ppc_link_hash_entry
*) h
)->tls_mask
;
7112 else if (local_got_ents
!= NULL
)
7115 lgot_masks
= (char *) (local_got_ents
+ symtab_hdr
->sh_info
);
7116 tls_mask
= lgot_masks
[r_symndx
];
7120 /* Ensure reloc mapping code below stays sane. */
7121 if (R_PPC64_TOC16_LO_DS
!= R_PPC64_TOC16_DS
+ 1
7122 || R_PPC64_TOC16_LO
!= R_PPC64_TOC16
+ 1
7123 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TLSGD16
& 3)
7124 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TLSGD16_LO
& 3)
7125 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TLSGD16_HI
& 3)
7126 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TLSGD16_HA
& 3)
7127 || (R_PPC64_GOT_TLSLD16
& 3) != (R_PPC64_GOT_TPREL16_DS
& 3)
7128 || (R_PPC64_GOT_TLSLD16_LO
& 3) != (R_PPC64_GOT_TPREL16_LO_DS
& 3)
7129 || (R_PPC64_GOT_TLSLD16_HI
& 3) != (R_PPC64_GOT_TPREL16_HI
& 3)
7130 || (R_PPC64_GOT_TLSLD16_HA
& 3) != (R_PPC64_GOT_TPREL16_HA
& 3))
7138 case R_PPC64_TOC16_LO
:
7139 case R_PPC64_TOC16_DS
:
7140 case R_PPC64_TOC16_LO_DS
:
7142 /* Check for toc tls entries. */
7146 retval
= get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
);
7152 tls_mask
= *toc_tls
;
7153 if (r_type
== R_PPC64_TOC16_DS
7154 || r_type
== R_PPC64_TOC16_LO_DS
)
7158 /* If we found a GD reloc pair, then we might be
7159 doing a GD->IE transition. */
7162 tls_gd
= TLS_TPRELGD
;
7163 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7164 goto tls_get_addr_check
;
7166 else if (retval
== 3)
7168 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7169 goto tls_get_addr_check
;
7176 case R_PPC64_GOT_TPREL16_DS
:
7177 case R_PPC64_GOT_TPREL16_LO_DS
:
7180 && (tls_mask
& TLS_TPREL
) == 0)
7183 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
7185 insn
|= 0x3c0d0000; /* addis 0,13,0 */
7186 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
7187 r_type
= R_PPC64_TPREL16_HA
;
7188 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7195 /* Check for toc tls entries. */
7198 if (!get_tls_mask (&toc_tls
, &local_syms
, rel
, input_bfd
))
7202 tls_mask
= *toc_tls
;
7205 && (tls_mask
& TLS_TPREL
) == 0)
7208 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
7209 if ((insn
& ((31 << 26) | (31 << 11)))
7210 == ((31 << 26) | (13 << 11)))
7211 rtra
= insn
& ((1 << 26) - (1 << 16));
7212 else if ((insn
& ((31 << 26) | (31 << 16)))
7213 == ((31 << 26) | (13 << 16)))
7214 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
7217 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
7220 else if ((insn
& (31 << 1)) == 23 << 1
7221 && ((insn
& (31 << 6)) < 14 << 6
7222 || ((insn
& (31 << 6)) >= 16 << 6
7223 && (insn
& (31 << 6)) < 24 << 6)))
7224 /* load and store indexed -> dform. */
7225 insn
= (32 | ((insn
>> 6) & 31)) << 26;
7226 else if ((insn
& (31 << 1)) == 21 << 1
7227 && (insn
& (0x1a << 6)) == 0)
7228 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7229 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
7230 | ((insn
>> 6) & 1));
7231 else if ((insn
& (31 << 1)) == 21 << 1
7232 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
7234 insn
= (58 << 26) | 2;
7238 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
7239 r_type
= R_PPC64_TPREL16_LO
;
7240 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7241 /* Was PPC64_TLS which sits on insn boundary, now
7242 PPC64_TPREL16_LO which is at insn+2. */
7247 case R_PPC64_GOT_TLSGD16_HI
:
7248 case R_PPC64_GOT_TLSGD16_HA
:
7249 tls_gd
= TLS_TPRELGD
;
7250 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7254 case R_PPC64_GOT_TLSLD16_HI
:
7255 case R_PPC64_GOT_TLSLD16_HA
:
7256 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7259 if ((tls_mask
& tls_gd
) != 0)
7260 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7261 + R_PPC64_GOT_TPREL16_DS
);
7264 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
7266 r_type
= R_PPC64_NONE
;
7268 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7272 case R_PPC64_GOT_TLSGD16
:
7273 case R_PPC64_GOT_TLSGD16_LO
:
7274 tls_gd
= TLS_TPRELGD
;
7275 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
7276 goto tls_get_addr_check
;
7279 case R_PPC64_GOT_TLSLD16
:
7280 case R_PPC64_GOT_TLSLD16_LO
:
7281 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
7284 if (rel
+ 1 < relend
)
7286 enum elf_ppc64_reloc_type r_type2
;
7287 unsigned long r_symndx2
;
7288 struct elf_link_hash_entry
*h2
;
7289 bfd_vma insn1
, insn2
, insn3
;
7292 /* The next instruction should be a call to
7293 __tls_get_addr. Peek at the reloc to be sure. */
7295 = (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rel
[1].r_info
);
7296 r_symndx2
= ELF64_R_SYM (rel
[1].r_info
);
7297 if (r_symndx2
< symtab_hdr
->sh_info
7298 || (r_type2
!= R_PPC64_REL14
7299 && r_type2
!= R_PPC64_REL14_BRTAKEN
7300 && r_type2
!= R_PPC64_REL14_BRNTAKEN
7301 && r_type2
!= R_PPC64_REL24
))
7304 h2
= sym_hashes
[r_symndx2
- symtab_hdr
->sh_info
];
7305 while (h2
->root
.type
== bfd_link_hash_indirect
7306 || h2
->root
.type
== bfd_link_hash_warning
)
7307 h2
= (struct elf_link_hash_entry
*) h2
->root
.u
.i
.link
;
7308 if (h2
== NULL
|| h2
!= htab
->tls_get_addr
)
7311 /* OK, it checks out. Replace the call. */
7312 offset
= rel
[1].r_offset
;
7313 insn1
= bfd_get_32 (output_bfd
,
7314 contents
+ rel
->r_offset
- 2);
7315 insn3
= bfd_get_32 (output_bfd
,
7316 contents
+ offset
+ 4);
7317 if ((tls_mask
& tls_gd
) != 0)
7320 insn1
&= (1 << 26) - (1 << 2);
7321 insn1
|= 58 << 26; /* ld */
7322 insn2
= 0x7c636a14; /* add 3,3,13 */
7323 rel
[1].r_info
= ELF64_R_INFO (r_symndx2
, R_PPC64_NONE
);
7324 if ((tls_mask
& TLS_EXPLICIT
) == 0)
7325 r_type
= (((r_type
- (R_PPC64_GOT_TLSGD16
& 3)) & 3)
7326 + R_PPC64_GOT_TPREL16_DS
);
7328 r_type
+= R_PPC64_TOC16_DS
- R_PPC64_TOC16
;
7329 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7334 insn1
= 0x3c6d0000; /* addis 3,13,0 */
7335 insn2
= 0x38630000; /* addi 3,3,0 */
7338 /* Was an LD reloc. */
7340 rel
->r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7341 rel
[1].r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7343 r_type
= R_PPC64_TPREL16_HA
;
7344 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7345 rel
[1].r_info
= ELF64_R_INFO (r_symndx
,
7346 R_PPC64_TPREL16_LO
);
7347 rel
[1].r_offset
+= 2;
7350 || insn3
== CROR_151515
|| insn3
== CROR_313131
)
7354 rel
[1].r_offset
+= 4;
7356 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
->r_offset
- 2);
7357 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
7358 bfd_put_32 (output_bfd
, insn3
, contents
+ offset
+ 4);
7361 /* We changed the symbol on an LD reloc. Start over
7362 in order to get h, sym, sec etc. right. */
7370 case R_PPC64_DTPMOD64
:
7371 if (rel
+ 1 < relend
7372 && rel
[1].r_info
== ELF64_R_INFO (r_symndx
, R_PPC64_DTPREL64
)
7373 && rel
[1].r_offset
== rel
->r_offset
+ 8)
7375 if ((tls_mask
& TLS_GD
) == 0)
7377 rel
[1].r_info
= ELF64_R_INFO (r_symndx
, R_PPC64_NONE
);
7378 if ((tls_mask
& TLS_TPRELGD
) != 0)
7379 r_type
= R_PPC64_TPREL64
;
7382 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7383 contents
+ rel
->r_offset
);
7384 r_type
= R_PPC64_NONE
;
7386 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7391 if ((tls_mask
& TLS_LD
) == 0)
7393 bfd_put_64 (output_bfd
, (bfd_vma
) 1,
7394 contents
+ rel
->r_offset
);
7395 r_type
= R_PPC64_NONE
;
7396 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7401 case R_PPC64_TPREL64
:
7402 if ((tls_mask
& TLS_TPREL
) == 0)
7404 r_type
= R_PPC64_NONE
;
7405 rel
->r_info
= ELF64_R_INFO (r_symndx
, r_type
);
7410 /* Handle other relocations that tweak non-addend part of insn. */
7417 /* Branch taken prediction relocations. */
7418 case R_PPC64_ADDR14_BRTAKEN
:
7419 case R_PPC64_REL14_BRTAKEN
:
7420 insn
= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7423 /* Branch not taken prediction relocations. */
7424 case R_PPC64_ADDR14_BRNTAKEN
:
7425 case R_PPC64_REL14_BRNTAKEN
:
7426 insn
|= bfd_get_32 (output_bfd
,
7427 contents
+ rel
->r_offset
) & ~(0x01 << 21);
7430 /* Set 'a' bit. This is 0b00010 in BO field for branch
7431 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7432 for branch on CTR insns (BO == 1a00t or 1a01t). */
7433 if ((insn
& (0x14 << 21)) == (0x04 << 21))
7435 else if ((insn
& (0x14 << 21)) == (0x10 << 21))
7442 from
= (rel
->r_offset
7443 + input_section
->output_offset
7444 + input_section
->output_section
->vma
);
7446 /* Invert 'y' bit if not the default. */
7447 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
7451 bfd_put_32 (output_bfd
, (bfd_vma
) insn
, contents
+ rel
->r_offset
);
7455 /* A REL24 branching to a linkage function is followed by a
7456 nop. We replace the nop with a ld in order to restore
7457 the TOC base pointer. Only calls to shared objects need
7458 to alter the TOC base. These are recognized by their
7459 need for a PLT entry. */
7461 && (fdh
= ((struct ppc_link_hash_entry
*) h
)->oh
) != NULL
7462 && fdh
->plt
.plist
!= NULL
7463 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, fdh
,
7464 rel
, htab
)) != NULL
)
7466 bfd_boolean can_plt_call
= 0;
7468 if (rel
->r_offset
+ 8 <= input_section
->_cooked_size
)
7470 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
7472 || insn
== CROR_151515
|| insn
== CROR_313131
)
7474 bfd_put_32 (input_bfd
, (bfd_vma
) LD_R2_40R1
,
7475 contents
+ rel
->r_offset
+ 4);
7482 /* If this is a plain branch rather than a branch
7483 and link, don't require a nop. */
7484 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
7485 if ((insn
& 1) == 0)
7491 relocation
= (stub_entry
->stub_offset
7492 + stub_entry
->stub_sec
->output_offset
7493 + stub_entry
->stub_sec
->output_section
->vma
);
7494 unresolved_reloc
= FALSE
;
7499 && h
->root
.type
== bfd_link_hash_undefweak
7501 && rel
->r_addend
== 0)
7503 /* Tweak calls to undefined weak functions to point at a
7504 blr. We can thus call a weak function without first
7505 checking whether the function is defined. We have a
7506 blr at the end of .sfpr. */
7507 BFD_ASSERT (htab
->sfpr
->_raw_size
!= 0);
7508 relocation
= (htab
->sfpr
->_raw_size
- 4
7509 + htab
->sfpr
->output_offset
7510 + htab
->sfpr
->output_section
->vma
);
7511 from
= (rel
->r_offset
7512 + input_section
->output_offset
7513 + input_section
->output_section
->vma
);
7515 /* But let's not be silly about it. If the blr isn't in
7516 reach, just go to the next instruction. */
7517 if (relocation
- from
+ (1 << 25) >= (1 << 26)
7518 || htab
->sfpr
->_raw_size
== 0)
7519 relocation
= from
+ 4;
7526 addend
= rel
->r_addend
;
7530 (*_bfd_error_handler
)
7531 (_("%s: unknown relocation type %d for symbol %s"),
7532 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
7534 bfd_set_error (bfd_error_bad_value
);
7540 case R_PPC64_GNU_VTINHERIT
:
7541 case R_PPC64_GNU_VTENTRY
:
7544 /* GOT16 relocations. Like an ADDR16 using the symbol's
7545 address in the GOT as relocation value instead of the
7546 symbol's value itself. Also, create a GOT entry for the
7547 symbol and put the symbol value there. */
7548 case R_PPC64_GOT_TLSGD16
:
7549 case R_PPC64_GOT_TLSGD16_LO
:
7550 case R_PPC64_GOT_TLSGD16_HI
:
7551 case R_PPC64_GOT_TLSGD16_HA
:
7552 tls_type
= TLS_TLS
| TLS_GD
;
7555 case R_PPC64_GOT_TLSLD16
:
7556 case R_PPC64_GOT_TLSLD16_LO
:
7557 case R_PPC64_GOT_TLSLD16_HI
:
7558 case R_PPC64_GOT_TLSLD16_HA
:
7559 tls_type
= TLS_TLS
| TLS_LD
;
7562 case R_PPC64_GOT_TPREL16_DS
:
7563 case R_PPC64_GOT_TPREL16_LO_DS
:
7564 case R_PPC64_GOT_TPREL16_HI
:
7565 case R_PPC64_GOT_TPREL16_HA
:
7566 tls_type
= TLS_TLS
| TLS_TPREL
;
7569 case R_PPC64_GOT_DTPREL16_DS
:
7570 case R_PPC64_GOT_DTPREL16_LO_DS
:
7571 case R_PPC64_GOT_DTPREL16_HI
:
7572 case R_PPC64_GOT_DTPREL16_HA
:
7573 tls_type
= TLS_TLS
| TLS_DTPREL
;
7577 case R_PPC64_GOT16_LO
:
7578 case R_PPC64_GOT16_HI
:
7579 case R_PPC64_GOT16_HA
:
7580 case R_PPC64_GOT16_DS
:
7581 case R_PPC64_GOT16_LO_DS
:
7584 /* Relocation is to the entry for this symbol in the global
7586 struct got_entry
*ent
;
7590 if (htab
->sgot
== NULL
)
7597 if (local_got_ents
== NULL
)
7599 ent
= local_got_ents
[r_symndx
];
7602 for (; ent
!= NULL
; ent
= ent
->next
)
7603 if (ent
->addend
== rel
->r_addend
7604 && ent
->tls_type
== tls_type
)
7609 off
= ent
->got
.offset
;
7613 bfd_boolean dyn
= htab
->elf
.dynamic_sections_created
;
7614 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
, h
)
7618 || (h
->elf_link_hash_flags
7619 & ELF_LINK_FORCED_LOCAL
))
7620 && (h
->elf_link_hash_flags
7621 & ELF_LINK_HASH_DEF_REGULAR
)))
7622 /* This is actually a static link, or it is a
7623 -Bsymbolic link and the symbol is defined
7624 locally, or the symbol was forced to be local
7625 because of a version file. */
7630 unresolved_reloc
= FALSE
;
7634 /* The offset must always be a multiple of 8. We use the
7635 least significant bit to record whether we have already
7636 processed this entry. */
7641 /* Generate relocs for the dynamic linker, except in
7642 the case of TLSLD where we'll use one entry per
7644 if ((info
->shared
|| indx
!= 0)
7645 && tls_type
!= (TLS_TLS
| TLS_LD
))
7647 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
7648 + htab
->sgot
->output_offset
7650 if (tls_type
== (TLS_TLS
| TLS_GD
))
7652 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPMOD64
);
7653 outrel
.r_addend
= 0;
7654 loc
= htab
->srelgot
->contents
;
7655 loc
+= (htab
->srelgot
->reloc_count
++
7656 * sizeof (Elf64_External_Rela
));
7657 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7658 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7659 outrel
.r_offset
+= 8;
7661 else if (tls_type
== (TLS_TLS
| TLS_DTPREL
))
7662 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_DTPREL64
);
7663 else if (tls_type
== (TLS_TLS
| TLS_TPREL
))
7664 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_TPREL64
);
7666 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_RELATIVE
);
7668 outrel
.r_info
= ELF64_R_INFO (indx
, R_PPC64_GLOB_DAT
);
7669 outrel
.r_addend
= rel
->r_addend
;
7671 outrel
.r_addend
+= relocation
;
7672 loc
= htab
->srelgot
->contents
;
7673 loc
+= (htab
->srelgot
->reloc_count
++
7674 * sizeof (Elf64_External_Rela
));
7675 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7678 /* Init the .got section contents if we're not
7679 emitting a reloc. */
7680 if (!(info
->shared
|| indx
!= 0))
7683 relocation
+= ent
->addend
;
7686 relocation
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7687 if ((tls_type
& TLS_TPREL
) != 0)
7688 relocation
+= DTP_OFFSET
- TP_OFFSET
;
7691 if ((tls_type
& (TLS_GD
| TLS_LD
)) != 0)
7693 if ((tls_type
& TLS_LD
) != 0)
7694 relocation
= - DTP_OFFSET
;
7695 bfd_put_64 (output_bfd
, relocation
,
7696 htab
->sgot
->contents
+ off
+ 8);
7699 bfd_put_64 (output_bfd
, relocation
,
7700 htab
->sgot
->contents
+ off
);
7702 ent
->got
.offset
|= 1;
7705 if (off
>= (bfd_vma
) -2)
7708 relocation
= htab
->sgot
->output_offset
+ off
;
7710 /* TOC base (r2) is TOC start plus 0x8000. */
7711 addend
= - TOC_BASE_OFF
;
7715 case R_PPC64_PLT16_HA
:
7716 case R_PPC64_PLT16_HI
:
7717 case R_PPC64_PLT16_LO
:
7720 /* Relocation is to the entry for this symbol in the
7721 procedure linkage table. */
7723 /* Resolve a PLT reloc against a local symbol directly,
7724 without using the procedure linkage table. */
7728 /* It's possible that we didn't make a PLT entry for this
7729 symbol. This happens when statically linking PIC code,
7730 or when using -Bsymbolic. Go find a match if there is a
7732 if (htab
->splt
!= NULL
)
7734 struct plt_entry
*ent
;
7735 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
7736 if (ent
->addend
== rel
->r_addend
7737 && ent
->plt
.offset
!= (bfd_vma
) -1)
7739 relocation
= (htab
->splt
->output_section
->vma
7740 + htab
->splt
->output_offset
7742 unresolved_reloc
= FALSE
;
7747 /* TOC16 relocs. We want the offset relative to the TOC base,
7748 which is the address of the start of the TOC plus 0x8000.
7749 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7752 case R_PPC64_TOC16_LO
:
7753 case R_PPC64_TOC16_HI
:
7754 case R_PPC64_TOC16_DS
:
7755 case R_PPC64_TOC16_LO_DS
:
7756 case R_PPC64_TOC16_HA
:
7757 addend
-= TOCstart
+ TOC_BASE_OFF
;
7760 /* Relocate against the beginning of the section. */
7761 case R_PPC64_SECTOFF
:
7762 case R_PPC64_SECTOFF_LO
:
7763 case R_PPC64_SECTOFF_HI
:
7764 case R_PPC64_SECTOFF_DS
:
7765 case R_PPC64_SECTOFF_LO_DS
:
7766 case R_PPC64_SECTOFF_HA
:
7767 if (sec
!= (asection
*) 0)
7768 addend
-= sec
->output_section
->vma
;
7772 case R_PPC64_REL14_BRNTAKEN
:
7773 case R_PPC64_REL14_BRTAKEN
:
7777 case R_PPC64_TPREL16
:
7778 case R_PPC64_TPREL16_LO
:
7779 case R_PPC64_TPREL16_HI
:
7780 case R_PPC64_TPREL16_HA
:
7781 case R_PPC64_TPREL16_DS
:
7782 case R_PPC64_TPREL16_LO_DS
:
7783 case R_PPC64_TPREL16_HIGHER
:
7784 case R_PPC64_TPREL16_HIGHERA
:
7785 case R_PPC64_TPREL16_HIGHEST
:
7786 case R_PPC64_TPREL16_HIGHESTA
:
7787 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7789 /* The TPREL16 relocs shouldn't really be used in shared
7790 libs as they will result in DT_TEXTREL being set, but
7791 support them anyway. */
7795 case R_PPC64_DTPREL16
:
7796 case R_PPC64_DTPREL16_LO
:
7797 case R_PPC64_DTPREL16_HI
:
7798 case R_PPC64_DTPREL16_HA
:
7799 case R_PPC64_DTPREL16_DS
:
7800 case R_PPC64_DTPREL16_LO_DS
:
7801 case R_PPC64_DTPREL16_HIGHER
:
7802 case R_PPC64_DTPREL16_HIGHERA
:
7803 case R_PPC64_DTPREL16_HIGHEST
:
7804 case R_PPC64_DTPREL16_HIGHESTA
:
7805 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7808 case R_PPC64_TPREL64
:
7809 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
7812 case R_PPC64_DTPREL64
:
7813 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
7816 /* Relocations that may need to be propagated if this is a
7818 case R_PPC64_DTPMOD64
:
7822 case R_PPC64_ADDR14
:
7823 case R_PPC64_ADDR14_BRNTAKEN
:
7824 case R_PPC64_ADDR14_BRTAKEN
:
7825 case R_PPC64_ADDR16
:
7826 case R_PPC64_ADDR16_DS
:
7827 case R_PPC64_ADDR16_HA
:
7828 case R_PPC64_ADDR16_HI
:
7829 case R_PPC64_ADDR16_HIGHER
:
7830 case R_PPC64_ADDR16_HIGHERA
:
7831 case R_PPC64_ADDR16_HIGHEST
:
7832 case R_PPC64_ADDR16_HIGHESTA
:
7833 case R_PPC64_ADDR16_LO
:
7834 case R_PPC64_ADDR16_LO_DS
:
7835 case R_PPC64_ADDR24
:
7836 case R_PPC64_ADDR32
:
7837 case R_PPC64_ADDR64
:
7838 case R_PPC64_UADDR16
:
7839 case R_PPC64_UADDR32
:
7840 case R_PPC64_UADDR64
:
7841 /* r_symndx will be zero only for relocs against symbols
7842 from removed linkonce sections, or sections discarded by
7850 if ((input_section
->flags
& SEC_ALLOC
) == 0)
7853 if (NO_OPD_RELOCS
&& is_opd
)
7857 && (MUST_BE_DYN_RELOC (r_type
)
7860 && (! info
->symbolic
7861 || (h
->elf_link_hash_flags
7862 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
7866 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
7867 && (((h
->elf_link_hash_flags
7868 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
7869 && (h
->elf_link_hash_flags
7870 & ELF_LINK_HASH_DEF_REGULAR
) == 0)
7871 || h
->root
.type
== bfd_link_hash_undefweak
7872 || h
->root
.type
== bfd_link_hash_undefined
)))
7874 Elf_Internal_Rela outrel
;
7875 bfd_boolean skip
, relocate
;
7879 /* When generating a dynamic object, these relocations
7880 are copied into the output file to be resolved at run
7887 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
7889 if (outrel
.r_offset
== (bfd_vma
) -1)
7891 else if (outrel
.r_offset
== (bfd_vma
) -2)
7892 skip
= TRUE
, relocate
= TRUE
;
7893 outrel
.r_offset
+= (input_section
->output_section
->vma
7894 + input_section
->output_offset
);
7895 outrel
.r_addend
= rel
->r_addend
;
7898 memset (&outrel
, 0, sizeof outrel
);
7902 && (!MUST_BE_DYN_RELOC (r_type
)
7905 || (h
->elf_link_hash_flags
7906 & ELF_LINK_HASH_DEF_REGULAR
) == 0))
7907 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, r_type
);
7910 /* This symbol is local, or marked to become local,
7911 or this is an opd section reloc which must point
7912 at a local function. */
7913 outrel
.r_addend
+= relocation
;
7916 if (r_type
== R_PPC64_ADDR64
|| r_type
== R_PPC64_TOC
)
7918 if (is_opd
&& h
!= NULL
)
7920 /* Lie about opd entries. This case occurs
7921 when building shared libraries and we
7922 reference a function in another shared
7923 lib. The same thing happens for a weak
7924 definition in an application that's
7925 overridden by a strong definition in a
7926 shared lib. (I believe this is a generic
7927 bug in binutils handling of weak syms.)
7928 In these cases we won't use the opd
7929 entry in this lib. */
7930 unresolved_reloc
= FALSE
;
7932 outrel
.r_info
= ELF64_R_INFO (0, R_PPC64_RELATIVE
);
7938 if (bfd_is_abs_section (sec
))
7940 else if (sec
== NULL
|| sec
->owner
== NULL
)
7942 bfd_set_error (bfd_error_bad_value
);
7949 osec
= sec
->output_section
;
7950 indx
= elf_section_data (osec
)->dynindx
;
7952 /* We are turning this relocation into one
7953 against a section symbol, so subtract out
7954 the output section's address but not the
7955 offset of the input section in the output
7957 outrel
.r_addend
-= osec
->vma
;
7960 outrel
.r_info
= ELF64_R_INFO (indx
, r_type
);
7964 sreloc
= elf_section_data (input_section
)->sreloc
;
7968 loc
= sreloc
->contents
;
7969 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
7970 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
7972 /* If this reloc is against an external symbol, it will
7973 be computed at runtime, so there's no need to do
7981 case R_PPC64_GLOB_DAT
:
7982 case R_PPC64_JMP_SLOT
:
7983 case R_PPC64_RELATIVE
:
7984 /* We shouldn't ever see these dynamic relocs in relocatable
7988 case R_PPC64_PLTGOT16
:
7989 case R_PPC64_PLTGOT16_DS
:
7990 case R_PPC64_PLTGOT16_HA
:
7991 case R_PPC64_PLTGOT16_HI
:
7992 case R_PPC64_PLTGOT16_LO
:
7993 case R_PPC64_PLTGOT16_LO_DS
:
7994 case R_PPC64_PLTREL32
:
7995 case R_PPC64_PLTREL64
:
7996 /* These ones haven't been implemented yet. */
7998 (*_bfd_error_handler
)
7999 (_("%s: Relocation %s is not supported for symbol %s."),
8000 bfd_archive_filename (input_bfd
),
8001 ppc64_elf_howto_table
[(int) r_type
]->name
, sym_name
);
8003 bfd_set_error (bfd_error_invalid_operation
);
8008 /* Do any further special processing. */
8014 case R_PPC64_ADDR16_HA
:
8015 case R_PPC64_ADDR16_HIGHERA
:
8016 case R_PPC64_ADDR16_HIGHESTA
:
8017 case R_PPC64_GOT16_HA
:
8018 case R_PPC64_PLTGOT16_HA
:
8019 case R_PPC64_PLT16_HA
:
8020 case R_PPC64_TOC16_HA
:
8021 case R_PPC64_SECTOFF_HA
:
8022 case R_PPC64_TPREL16_HA
:
8023 case R_PPC64_DTPREL16_HA
:
8024 case R_PPC64_GOT_TLSGD16_HA
:
8025 case R_PPC64_GOT_TLSLD16_HA
:
8026 case R_PPC64_GOT_TPREL16_HA
:
8027 case R_PPC64_GOT_DTPREL16_HA
:
8028 case R_PPC64_TPREL16_HIGHER
:
8029 case R_PPC64_TPREL16_HIGHERA
:
8030 case R_PPC64_TPREL16_HIGHEST
:
8031 case R_PPC64_TPREL16_HIGHESTA
:
8032 case R_PPC64_DTPREL16_HIGHER
:
8033 case R_PPC64_DTPREL16_HIGHERA
:
8034 case R_PPC64_DTPREL16_HIGHEST
:
8035 case R_PPC64_DTPREL16_HIGHESTA
:
8036 /* It's just possible that this symbol is a weak symbol
8037 that's not actually defined anywhere. In that case,
8038 'sec' would be NULL, and we should leave the symbol
8039 alone (it will be set to zero elsewhere in the link). */
8041 /* Add 0x10000 if sign bit in 0:15 is set. */
8042 addend
+= ((relocation
+ addend
) & 0x8000) << 1;
8045 case R_PPC64_ADDR16_DS
:
8046 case R_PPC64_ADDR16_LO_DS
:
8047 case R_PPC64_GOT16_DS
:
8048 case R_PPC64_GOT16_LO_DS
:
8049 case R_PPC64_PLT16_LO_DS
:
8050 case R_PPC64_SECTOFF_DS
:
8051 case R_PPC64_SECTOFF_LO_DS
:
8052 case R_PPC64_TOC16_DS
:
8053 case R_PPC64_TOC16_LO_DS
:
8054 case R_PPC64_PLTGOT16_DS
:
8055 case R_PPC64_PLTGOT16_LO_DS
:
8056 case R_PPC64_GOT_TPREL16_DS
:
8057 case R_PPC64_GOT_TPREL16_LO_DS
:
8058 case R_PPC64_GOT_DTPREL16_DS
:
8059 case R_PPC64_GOT_DTPREL16_LO_DS
:
8060 case R_PPC64_TPREL16_DS
:
8061 case R_PPC64_TPREL16_LO_DS
:
8062 case R_PPC64_DTPREL16_DS
:
8063 case R_PPC64_DTPREL16_LO_DS
:
8064 if (((relocation
+ addend
) & 3) != 0)
8066 (*_bfd_error_handler
)
8067 (_("%s: error: relocation %s not a multiple of 4"),
8068 bfd_archive_filename (input_bfd
),
8069 ppc64_elf_howto_table
[(int) r_type
]->name
);
8070 bfd_set_error (bfd_error_bad_value
);
8077 case R_PPC64_REL14_BRNTAKEN
:
8078 case R_PPC64_REL14_BRTAKEN
:
8079 max_br_offset
= 1 << 15;
8083 max_br_offset
= 1 << 25;
8086 /* If the branch is out of reach, then redirect the
8087 call to the local stub for this function. */
8088 from
= (rel
->r_offset
8089 + input_section
->output_offset
8090 + input_section
->output_section
->vma
);
8091 if (relocation
+ addend
- from
+ max_br_offset
>= 2 * max_br_offset
8092 && (stub_entry
= ppc_get_stub_entry (input_section
, sec
, h
,
8093 rel
, htab
)) != NULL
)
8095 /* Munge up the value and addend so that we call the stub
8096 rather than the procedure directly. */
8097 relocation
= (stub_entry
->stub_offset
8098 + stub_entry
->stub_sec
->output_offset
8099 + stub_entry
->stub_sec
->output_section
->vma
);
8105 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8106 because such sections are not SEC_ALLOC and thus ld.so will
8107 not process them. */
8108 if (unresolved_reloc
8109 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
8110 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
8112 (*_bfd_error_handler
)
8113 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8114 bfd_archive_filename (input_bfd
),
8115 bfd_get_section_name (input_bfd
, input_section
),
8116 (long) rel
->r_offset
,
8117 h
->root
.root
.string
);
8121 r
= _bfd_final_link_relocate (ppc64_elf_howto_table
[(int) r_type
],
8129 if (r
!= bfd_reloc_ok
)
8135 if (h
->root
.type
== bfd_link_hash_undefweak
8136 && ppc64_elf_howto_table
[(int) r_type
]->pc_relative
)
8138 /* Assume this is a call protected by other code that
8139 detects the symbol is undefined. If this is the case,
8140 we can safely ignore the overflow. If not, the
8141 program is hosed anyway, and a little warning isn't
8147 name
= h
->root
.root
.string
;
8151 name
= bfd_elf_local_sym_name (input_bfd
, sym
);
8156 if (r
== bfd_reloc_overflow
)
8160 if (!((*info
->callbacks
->reloc_overflow
)
8161 (info
, name
, ppc64_elf_howto_table
[(int) r_type
]->name
,
8162 rel
->r_addend
, input_bfd
, input_section
, rel
->r_offset
)))
8167 (*_bfd_error_handler
)
8168 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8169 bfd_archive_filename (input_bfd
),
8170 bfd_get_section_name (input_bfd
, input_section
),
8171 (long) rel
->r_offset
, name
, (int) r
);
8180 /* Finish up dynamic symbol handling. We set the contents of various
8181 dynamic sections here. */
8184 ppc64_elf_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
8186 struct bfd_link_info
*info
;
8187 struct elf_link_hash_entry
*h
;
8188 Elf_Internal_Sym
*sym
;
8190 struct ppc_link_hash_table
*htab
;
8193 htab
= ppc_hash_table (info
);
8194 dynobj
= htab
->elf
.dynobj
;
8196 if (((struct ppc_link_hash_entry
*) h
)->is_func_descriptor
)
8198 struct plt_entry
*ent
;
8199 Elf_Internal_Rela rela
;
8202 for (ent
= h
->plt
.plist
; ent
!= NULL
; ent
= ent
->next
)
8203 if (ent
->plt
.offset
!= (bfd_vma
) -1)
8205 /* This symbol has an entry in the procedure linkage
8206 table. Set it up. */
8208 if (htab
->splt
== NULL
8209 || htab
->srelplt
== NULL
8210 || htab
->sglink
== NULL
)
8213 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8214 fill in the PLT entry. */
8216 rela
.r_offset
= (htab
->splt
->output_section
->vma
8217 + htab
->splt
->output_offset
8219 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_JMP_SLOT
);
8220 rela
.r_addend
= ent
->addend
;
8222 loc
= htab
->srelplt
->contents
;
8223 loc
+= ((ent
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
8224 * sizeof (Elf64_External_Rela
));
8225 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8229 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
8231 Elf_Internal_Rela rela
;
8234 /* This symbol needs a copy reloc. Set it up. */
8236 if (h
->dynindx
== -1
8237 || (h
->root
.type
!= bfd_link_hash_defined
8238 && h
->root
.type
!= bfd_link_hash_defweak
)
8239 || htab
->srelbss
== NULL
)
8242 rela
.r_offset
= (h
->root
.u
.def
.value
8243 + h
->root
.u
.def
.section
->output_section
->vma
8244 + h
->root
.u
.def
.section
->output_offset
);
8245 rela
.r_info
= ELF64_R_INFO (h
->dynindx
, R_PPC64_COPY
);
8247 loc
= htab
->srelbss
->contents
;
8248 loc
+= htab
->srelbss
->reloc_count
++ * sizeof (Elf64_External_Rela
);
8249 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
8252 /* Mark some specially defined symbols as absolute. */
8253 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0)
8254 sym
->st_shndx
= SHN_ABS
;
8259 /* Used to decide how to sort relocs in an optimal manner for the
8260 dynamic linker, before writing them out. */
8262 static enum elf_reloc_type_class
8263 ppc64_elf_reloc_type_class (rela
)
8264 const Elf_Internal_Rela
*rela
;
8266 enum elf_ppc64_reloc_type r_type
;
8268 r_type
= (enum elf_ppc64_reloc_type
) ELF64_R_TYPE (rela
->r_info
);
8271 case R_PPC64_RELATIVE
:
8272 return reloc_class_relative
;
8273 case R_PPC64_JMP_SLOT
:
8274 return reloc_class_plt
;
8276 return reloc_class_copy
;
8278 return reloc_class_normal
;
8282 /* Finish up the dynamic sections. */
8285 ppc64_elf_finish_dynamic_sections (output_bfd
, info
)
8287 struct bfd_link_info
*info
;
8289 struct ppc_link_hash_table
*htab
;
8293 htab
= ppc_hash_table (info
);
8294 dynobj
= htab
->elf
.dynobj
;
8295 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
8297 if (htab
->elf
.dynamic_sections_created
)
8299 Elf64_External_Dyn
*dyncon
, *dynconend
;
8301 if (sdyn
== NULL
|| htab
->sgot
== NULL
)
8304 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
8305 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
8306 for (; dyncon
< dynconend
; dyncon
++)
8308 Elf_Internal_Dyn dyn
;
8311 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
8318 case DT_PPC64_GLINK
:
8320 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8324 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8327 dyn
.d_un
.d_ptr
= s
->vma
;
8330 case DT_PPC64_OPDSZ
:
8331 s
= bfd_get_section_by_name (output_bfd
, ".opd");
8334 dyn
.d_un
.d_val
= s
->_raw_size
;
8339 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8344 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
8348 dyn
.d_un
.d_val
= htab
->srelplt
->_raw_size
;
8352 /* Don't count procedure linkage table relocs in the
8353 overall reloc count. */
8357 dyn
.d_un
.d_val
-= s
->_raw_size
;
8361 /* We may not be using the standard ELF linker script.
8362 If .rela.plt is the first .rela section, we adjust
8363 DT_RELA to not include it. */
8367 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
8369 dyn
.d_un
.d_ptr
+= s
->_raw_size
;
8373 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
8377 if (htab
->sgot
!= NULL
&& htab
->sgot
->_raw_size
!= 0)
8379 /* Fill in the first entry in the global offset table.
8380 We use it to hold the link-time TOCbase. */
8381 bfd_put_64 (output_bfd
,
8382 elf_gp (output_bfd
) + TOC_BASE_OFF
,
8383 htab
->sgot
->contents
);
8385 /* Set .got entry size. */
8386 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
8389 if (htab
->splt
!= NULL
&& htab
->splt
->_raw_size
!= 0)
8391 /* Set .plt entry size. */
8392 elf_section_data (htab
->splt
->output_section
)->this_hdr
.sh_entsize
8399 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8400 #define TARGET_LITTLE_NAME "elf64-powerpcle"
8401 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8402 #define TARGET_BIG_NAME "elf64-powerpc"
8403 #define ELF_ARCH bfd_arch_powerpc
8404 #define ELF_MACHINE_CODE EM_PPC64
8405 #define ELF_MAXPAGESIZE 0x10000
8406 #define elf_info_to_howto ppc64_elf_info_to_howto
8408 #ifdef EM_CYGNUS_POWERPC
8409 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8413 #define ELF_MACHINE_ALT2 EM_PPC_OLD
8416 #define elf_backend_want_got_sym 0
8417 #define elf_backend_want_plt_sym 0
8418 #define elf_backend_plt_alignment 3
8419 #define elf_backend_plt_not_loaded 1
8420 #define elf_backend_got_symbol_offset 0
8421 #define elf_backend_got_header_size 8
8422 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
8423 #define elf_backend_can_gc_sections 1
8424 #define elf_backend_can_refcount 1
8425 #define elf_backend_rela_normal 1
8427 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
8428 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
8429 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
8430 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
8431 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
8433 #define elf_backend_object_p ppc64_elf_object_p
8434 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8435 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8436 #define elf_backend_check_relocs ppc64_elf_check_relocs
8437 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8438 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8439 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
8440 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
8441 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
8442 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
8443 #define elf_backend_relocate_section ppc64_elf_relocate_section
8444 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8445 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8446 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
8448 #include "elf64-target.h"